update linux-xanmod-cacule-uksm-cjktty to 5.13

5 files changed, 2935 insertions, 7090 deletions

diff --git a/.SRCINFO b/.SRCINFO
index afb36dcb56d7..bc48471df7a5 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,7 +1,7 @@
 pkgbase = linux-xanmod-cacule-uksm-cjktty
 	pkgdesc = Linux Xanmod. Branch with Cacule scheduler by Hamad Marri
-	pkgver = 5.12.3
-	pkgrel = 1
+	pkgver = 5.13.0
+	pkgrel = 2
 	url = http://www.xanmod.org/
 	arch = x86_64
 	license = GPL2
@@ -12,24 +12,24 @@ pkgbase = linux-xanmod-cacule-uksm-cjktty
 	makedepends = libelf
 	makedepends = cpio
 	options = !strip
-	source = https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.12.tar.xz
-	source = https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.12.tar.sign
-	source = https://github.com/xanmod/linux/releases/download/5.12.3-xanmod1-cacule/patch-5.12.3-xanmod1-cacule.xz
+	source = https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.13.0.tar.xz
+	source = https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.13.0.tar.sign
+	source = https://github.com/xanmod/linux/releases/download/5.13.0-xanmod2-cacule/patch-5.13.0-xanmod2-cacule.xz
 	source = choose-gcc-optimization.sh
 	source = sphinx-workaround.patch
-	source = 0002-UKSM.patch
-	source = 0003-CJKTTY.patch::https://raw.githubusercontent.com/zhmars/cjktty-patches/master/v5.x/cjktty-5.12.patch
-	source = 0004-DISABLEAUDIT.patch
+	source = 0001-cjktty.patch::https://raw.githubusercontent.com/zhmars/cjktty-patches/master/v5.x/cjktty-5.13.patch
+	source = 0002-UKSM.patch::https://gitlab.com/sirlucjan/kernel-patches/-/raw/master/5.13/uksm-patches/0001-UKSM-for-5.13.patch
+	source = 0003-btrfs.patch::https://gitlab.com/sirlucjan/kernel-patches/-/raw/master/5.13/btrfs-patches/0001-btrfs-patches.patch
 	validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886
 	validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E
-	sha256sums = 7d0df6f2bf2384d68d0bd8e1fe3e071d64364dcdc6002e7b5c87c92d48fac366
-	sha256sums = 39045607567d69f84424b224e4fa6bf8f97a21a06ac9d6396acab16a18c4bcd3
-	sha256sums = SKIP
-	sha256sums = e840e41f0f91108f63fd6e085c93b02daa78729268bc31be7be7fb355203e38a
-	sha256sums = 74339b8ad0ad99f08606c5de0dd3c38f502e29e5c6a78d6efbe656662edb8d73
-	sha256sums = f00a84fd382d63cd0d47d6fd8ef6c8608b1c83ff9d6dbdd32cb985898afbbf58
-	sha256sums = a29a24e9ceaf0d18f56c826331e2ce993b621a90c3ad18f449c44efd5b2e84d1
-	sha256sums = 2264a33da476a51a844d09fa3bb13a41e8cf9f924258caffddf62a5a3857bba9
+	b2sums = 9c4c12e2394dec064adff51f7ccdf389192eb27ba7906db5eda543afe3d04afca6b9ea0848a057571bf2534eeb98e1e3a67734deff82c0d3731be205ad995668
+	b2sums = SKIP
+	b2sums = b5342310408354006a2e637a08bee0beb5e653e771f2124197cf403b9ece56d96dfb0b0732311e2b6010df7933561fdf31b980f25d27b2e8326382a2428ed96d
+	b2sums = 2f0d5ddc9a1003958e8a3745cb42e47af8e7ff9961dd3d2ea070cc72444b5c63763f953b393bdd7c8a31f3ea29e8d3c86cc8647ae67bb054e22bce34af492ce1
+	b2sums = 6dd7c1b3a6246c2892316cd07d0bcc5e5528955b841e900a88e48c0a6b79861034fbe66bea1d5ee610668919f5d10f688ec68aa6f4edb98d30c7f9f6241b989d
+	b2sums = 5897022ff8b7a4f2eabb9788569e5a1b034ccad15a632ea9bfe1618714a02072dbca9e7467fe51337c5dbc46b218453e358461ceb110d385953622490f520a75
+	b2sums = 14f45171afc3b15488b40a05e58b352c5057da3a5782e13527392f7750d8e45a8db54f9b50b218fedb8bf679de3b4e5d78e230a44f7b1aa482f7b3aa831bd641
+	b2sums = 705a8f2037eef3afdd0f2a7648cc8d00bfc03112385b44a8907182812b6aed075519a9236909c0e3ba09df887381dd76cb01c601e0df05119136f7318587a416
 
 pkgname = linux-xanmod-cacule-uksm-cjktty
 	pkgdesc = The Linux kernel and modules with Xanmod patches
@@ -38,7 +38,9 @@ pkgname = linux-xanmod-cacule-uksm-cjktty
 	depends = initramfs
 	optdepends = crda: to set the correct wireless channels of your country
 	optdepends = linux-firmware: firmware images needed for some devices
+	provides = VIRTUALBOX-GUEST-MODULES
+	provides = WIREGUARD-MODULE
+	replaces = 
 
 pkgname = linux-xanmod-cacule-uksm-cjktty-headers
 	pkgdesc = Header files and scripts for building modules for Xanmod Linux kernel
-
diff --git a/0002-UKSM.patch b/0002-UKSM.patch
deleted file mode 100644
index bbd3972d714e..000000000000
--- a/0002-UKSM.patch
+++ /dev/null
@@ -1,6970 +0,0 @@
-From f785a5c37288394e6e74308bf35c38dcfa665201 Mon Sep 17 00:00:00 2001
-From: Piotr Gorski <lucjan.lucjanov@gmail.com>
-Date: Mon, 22 Feb 2021 18:08:28 +0100
-Subject: [PATCH] UKSM for 5.11
-
-Signed-off-by: Piotr Gorski <lucjan.lucjanov@gmail.com>
----
- Documentation/vm/uksm.txt   |   61 +
- fs/exec.c                   |    1 +
- fs/proc/meminfo.c           |    4 +
- include/linux/ksm.h         |   43 +-
- include/linux/mm_types.h    |    3 +
- include/linux/mmzone.h      |    3 +
- include/linux/pgtable.h     |   17 +-
- include/linux/sradix-tree.h |   77 +
- include/linux/uksm.h        |  149 +
- kernel/fork.c               |    2 +-
- lib/Makefile                |    2 +-
- lib/sradix-tree.c           |  476 +++
- mm/Kconfig                  |   26 +
- mm/Makefile                 |    3 +-
- mm/ksm.c                    |   11 -
- mm/memory.c                 |   33 +-
- mm/mmap.c                   |   37 +
- mm/uksm.c                   | 5614 +++++++++++++++++++++++++++++++++++
- mm/vmstat.c                 |    3 +
- 19 files changed, 6539 insertions(+), 26 deletions(-)
- create mode 100644 Documentation/vm/uksm.txt
- create mode 100644 include/linux/sradix-tree.h
- create mode 100644 include/linux/uksm.h
- create mode 100644 lib/sradix-tree.c
- create mode 100644 mm/uksm.c
-
-diff --git a/Documentation/vm/uksm.txt b/Documentation/vm/uksm.txt
-new file mode 100644
-index 000000000..be19a3127
---- /dev/null
-+++ b/Documentation/vm/uksm.txt
-@@ -0,0 +1,61 @@
-+The Ultra Kernel Samepage Merging feature
-+----------------------------------------------
-+/*
-+ * Ultra KSM. Copyright (C) 2011-2012 Nai Xia
-+ *
-+ * This is an improvement upon KSM. Some basic data structures and routines
-+ * are borrowed from ksm.c .
-+ *
-+ * Its new features:
-+ * 1. Full system scan:
-+ *      It automatically scans all user processes' anonymous VMAs. Kernel-user
-+ *      interaction to submit a memory area to KSM is no longer needed.
-+ *
-+ * 2. Rich area detection:
-+ *      It automatically detects rich areas containing abundant duplicated
-+ *      pages based. Rich areas are given a full scan speed. Poor areas are
-+ *      sampled at a reasonable speed with very low CPU consumption.
-+ *
-+ * 3. Ultra Per-page scan speed improvement:
-+ *      A new hash algorithm is proposed. As a result, on a machine with
-+ *      Core(TM)2 Quad Q9300 CPU in 32-bit mode and 800MHZ DDR2 main memory, it
-+ *      can scan memory areas that does not contain duplicated pages at speed of
-+ *      627MB/sec ~ 2445MB/sec and can merge duplicated areas at speed of
-+ *      477MB/sec ~ 923MB/sec.
-+ *
-+ * 4. Thrashing area avoidance:
-+ *      Thrashing area(an VMA that has frequent Ksm page break-out) can be
-+ *      filtered out. My benchmark shows it's more efficient than KSM's per-page
-+ *      hash value based volatile page detection.
-+ *
-+ *
-+ * 5. Misc changes upon KSM:
-+ *      * It has a fully x86-opitmized memcmp dedicated for 4-byte-aligned page
-+ *        comparison. It's much faster than default C version on x86.
-+ *      * rmap_item now has an struct *page member to loosely cache a
-+ *        address-->page mapping, which reduces too much time-costly
-+ *        follow_page().
-+ *      * The VMA creation/exit procedures are hooked to let the Ultra KSM know.
-+ *      * try_to_merge_two_pages() now can revert a pte if it fails. No break_
-+ *        ksm is needed for this case.
-+ *
-+ * 6. Full Zero Page consideration(contributed by Figo Zhang)
-+ *    Now uksmd consider full zero pages as special pages and merge them to an
-+ *    special unswappable uksm zero page.
-+ */
-+
-+ChangeLog:
-+
-+2012-05-05 The creation of this Doc
-+2012-05-08 UKSM 0.1.1.1 libc crash bug fix, api clean up, doc clean up.
-+2012-05-28 UKSM 0.1.1.2 bug fix release
-+2012-06-26 UKSM 0.1.2-beta1 first beta release for 0.1.2
-+2012-07-2  UKSM 0.1.2-beta2
-+2012-07-10 UKSM 0.1.2-beta3
-+2012-07-26 UKSM 0.1.2 Fine grained speed control, more scan optimization.
-+2012-10-13 UKSM 0.1.2.1 Bug fixes.
-+2012-12-31 UKSM 0.1.2.2 Minor bug fixes.
-+2014-07-02 UKSM 0.1.2.3 Fix a " __this_cpu_read() in preemptible bug".
-+2015-04-22 UKSM 0.1.2.4 Fix a race condition that can sometimes trigger anonying warnings.
-+2016-09-10 UKSM 0.1.2.5 Fix a bug in dedup ratio calculation.
-+2017-02-26 UKSM 0.1.2.6 Fix a bug in hugetlbpage handling and a race bug with page migration.
-diff --git a/fs/exec.c b/fs/exec.c
-index 5d4d52039..86f9f6526 100644
---- a/fs/exec.c
-+++ b/fs/exec.c
-@@ -65,6 +65,7 @@
- #include <linux/vmalloc.h>
- #include <linux/io_uring.h>
- #include <linux/syscall_user_dispatch.h>
-+#include <linux/ksm.h>
- 
- #include <linux/uaccess.h>
- #include <asm/mmu_context.h>
-diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
-index d6fc74619..e173b259f 100644
---- a/fs/proc/meminfo.c
-+++ b/fs/proc/meminfo.c
-@@ -108,6 +108,10 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
- #endif
- 	show_val_kb(m, "PageTables:     ",
- 		    global_node_page_state(NR_PAGETABLE));
-+#ifdef CONFIG_UKSM
-+	show_val_kb(m, "KsmZeroPages:     ",
-+		    global_zone_page_state(NR_UKSM_ZERO_PAGES));
-+#endif
- 
- 	show_val_kb(m, "NFS_Unstable:   ", 0);
- 	show_val_kb(m, "Bounce:         ",
-diff --git a/include/linux/ksm.h b/include/linux/ksm.h
-index 161e8164a..f0dbdf3c9 100644
---- a/include/linux/ksm.h
-+++ b/include/linux/ksm.h
-@@ -21,20 +21,16 @@ struct mem_cgroup;
- #ifdef CONFIG_KSM
- int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
- 		unsigned long end, int advice, unsigned long *vm_flags);
--int __ksm_enter(struct mm_struct *mm);
--void __ksm_exit(struct mm_struct *mm);
- 
--static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm)
-+static inline struct stable_node *page_stable_node(struct page *page)
- {
--	if (test_bit(MMF_VM_MERGEABLE, &oldmm->flags))
--		return __ksm_enter(mm);
--	return 0;
-+	return PageKsm(page) ? page_rmapping(page) : NULL;
- }
- 
--static inline void ksm_exit(struct mm_struct *mm)
-+static inline void set_page_stable_node(struct page *page,
-+					struct stable_node *stable_node)
- {
--	if (test_bit(MMF_VM_MERGEABLE, &mm->flags))
--		__ksm_exit(mm);
-+	page->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM);
- }
- 
- /*
-@@ -54,6 +50,33 @@ struct page *ksm_might_need_to_copy(struct page *page,
- void rmap_walk_ksm(struct page *page, struct rmap_walk_control *rwc);
- void ksm_migrate_page(struct page *newpage, struct page *oldpage);
- 
-+#ifdef CONFIG_KSM_LEGACY
-+int __ksm_enter(struct mm_struct *mm);
-+void __ksm_exit(struct mm_struct *mm);
-+static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm)
-+{
-+	if (test_bit(MMF_VM_MERGEABLE, &oldmm->flags))
-+		return __ksm_enter(mm);
-+	return 0;
-+}
-+
-+static inline void ksm_exit(struct mm_struct *mm)
-+{
-+	if (test_bit(MMF_VM_MERGEABLE, &mm->flags))
-+		__ksm_exit(mm);
-+}
-+
-+#elif defined(CONFIG_UKSM)
-+static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm)
-+{
-+	return 0;
-+}
-+
-+static inline void ksm_exit(struct mm_struct *mm)
-+{
-+}
-+#endif /* !CONFIG_UKSM */
-+
- #else  /* !CONFIG_KSM */
- 
- static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm)
-@@ -89,4 +112,6 @@ static inline void ksm_migrate_page(struct page *newpage, struct page *oldpage)
- #endif /* CONFIG_MMU */
- #endif /* !CONFIG_KSM */
- 
-+#include <linux/uksm.h>
-+
- #endif /* __LINUX_KSM_H */
-diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
-index 07d9acb5b..858a2f712 100644
---- a/include/linux/mm_types.h
-+++ b/include/linux/mm_types.h
-@@ -369,6 +369,9 @@ struct vm_area_struct {
- 	struct mempolicy *vm_policy;	/* NUMA policy for the VMA */
- #endif
- 	struct vm_userfaultfd_ctx vm_userfaultfd_ctx;
-+#ifdef CONFIG_UKSM
-+	struct vma_slot *uksm_vma_slot;
-+#endif
- } __randomize_layout;
- 
- struct core_thread {
-diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
-index b593316bf..90d5b5a43 100644
---- a/include/linux/mmzone.h
-+++ b/include/linux/mmzone.h
-@@ -157,6 +157,9 @@ enum zone_stat_item {
- 	NR_ZSPAGES,		/* allocated in zsmalloc */
- #endif
- 	NR_FREE_CMA_PAGES,
-+#ifdef CONFIG_UKSM
-+	NR_UKSM_ZERO_PAGES,
-+#endif
- 	NR_VM_ZONE_STAT_ITEMS };
- 
- enum node_stat_item {
-diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
-index 8fcdfa52e..cc511ae57 100644
---- a/include/linux/pgtable.h
-+++ b/include/linux/pgtable.h
-@@ -1115,12 +1115,25 @@ extern void untrack_pfn(struct vm_area_struct *vma, unsigned long pfn,
- extern void untrack_pfn_moved(struct vm_area_struct *vma);
- #endif
- 
-+#ifdef CONFIG_UKSM
-+static inline int is_uksm_zero_pfn(unsigned long pfn)
-+{
-+	extern unsigned long uksm_zero_pfn;
-+	return pfn == uksm_zero_pfn;
-+}
-+#else
-+static inline int is_uksm_zero_pfn(unsigned long pfn)
-+{
-+	return 0;
-+}
-+#endif
-+
- #ifdef __HAVE_COLOR_ZERO_PAGE
- static inline int is_zero_pfn(unsigned long pfn)
- {
- 	extern unsigned long zero_pfn;
- 	unsigned long offset_from_zero_pfn = pfn - zero_pfn;
--	return offset_from_zero_pfn <= (zero_page_mask >> PAGE_SHIFT);
-+	return offset_from_zero_pfn <= (zero_page_mask >> PAGE_SHIFT) || is_uksm_zero_pfn(pfn);
- }
- 
- #define my_zero_pfn(addr)	page_to_pfn(ZERO_PAGE(addr))
-@@ -1129,7 +1142,7 @@ static inline int is_zero_pfn(unsigned long pfn)
- static inline int is_zero_pfn(unsigned long pfn)
- {
- 	extern unsigned long zero_pfn;
--	return pfn == zero_pfn;
-+	return (pfn == zero_pfn) || (is_uksm_zero_pfn(pfn));
- }
- 
- static inline unsigned long my_zero_pfn(unsigned long addr)
-diff --git a/include/linux/sradix-tree.h b/include/linux/sradix-tree.h
-new file mode 100644
-index 000000000..d71edba6b
---- /dev/null
-+++ b/include/linux/sradix-tree.h
-@@ -0,0 +1,77 @@
-+#ifndef _LINUX_SRADIX_TREE_H
-+#define _LINUX_SRADIX_TREE_H
-+
-+
-+#define INIT_SRADIX_TREE(root, mask)					\
-+do {									\
-+	(root)->height = 0;						\
-+	(root)->gfp_mask = (mask);					\
-+	(root)->rnode = NULL;						\
-+} while (0)
-+
-+#define ULONG_BITS	(sizeof(unsigned long) * 8)
-+#define SRADIX_TREE_INDEX_BITS  (8 /* CHAR_BIT */ * sizeof(unsigned long))
-+//#define SRADIX_TREE_MAP_SHIFT	6
-+//#define SRADIX_TREE_MAP_SIZE	(1UL << SRADIX_TREE_MAP_SHIFT)
-+//#define SRADIX_TREE_MAP_MASK	(SRADIX_TREE_MAP_SIZE-1)
-+
-+struct sradix_tree_node {
-+	unsigned int	height;		/* Height from the bottom */
-+	unsigned int	count;
-+	unsigned int	fulls;		/* Number of full sublevel trees */
-+	struct sradix_tree_node *parent;
-+	void *stores[0];
-+};
-+
-+/* A simple radix tree implementation */
-+struct sradix_tree_root {
-+	unsigned int            height;
-+	struct sradix_tree_node *rnode;
-+
-+	/* Where found to have available empty stores in its sublevels */
-+	struct sradix_tree_node *enter_node;
-+	unsigned int shift;
-+	unsigned int stores_size;
-+	unsigned int mask;
-+	unsigned long min;	/* The first hole index */
-+	unsigned long num;
-+	//unsigned long *height_to_maxindex;
-+
-+	/* How the node is allocated and freed. */
-+	struct sradix_tree_node *(*alloc)(void);
-+	void (*free)(struct sradix_tree_node *node);
-+
-+	/* When a new node is added and removed */
-+	void (*extend)(struct sradix_tree_node *parent, struct sradix_tree_node *child);
-+	void (*assign)(struct sradix_tree_node *node, unsigned int index, void *item);
-+	void (*rm)(struct sradix_tree_node *node, unsigned int offset);
-+};
-+
-+struct sradix_tree_path {
-+	struct sradix_tree_node *node;
-+	int offset;
-+};
-+
-+static inline
-+void init_sradix_tree_root(struct sradix_tree_root *root, unsigned long shift)
-+{
-+	root->height = 0;
-+	root->rnode = NULL;
-+	root->shift = shift;
-+	root->stores_size = 1UL << shift;
-+	root->mask = root->stores_size - 1;
-+}
-+
-+
-+extern void *sradix_tree_next(struct sradix_tree_root *root,
-+		       struct sradix_tree_node *node, unsigned long index,
-+		       int (*iter)(void *, unsigned long));
-+
-+extern int sradix_tree_enter(struct sradix_tree_root *root, void **item, int num);
-+
-+extern void sradix_tree_delete_from_leaf(struct sradix_tree_root *root,
-+			struct sradix_tree_node *node, unsigned long index);
-+
-+extern void *sradix_tree_lookup(struct sradix_tree_root *root, unsigned long index);
-+
-+#endif /* _LINUX_SRADIX_TREE_H */
-diff --git a/include/linux/uksm.h b/include/linux/uksm.h
-new file mode 100644
-index 000000000..bb8651f53
---- /dev/null
-+++ b/include/linux/uksm.h
-@@ -0,0 +1,149 @@
-+#ifndef __LINUX_UKSM_H
-+#define __LINUX_UKSM_H
-+/*
-+ * Memory merging support.
-+ *
-+ * This code enables dynamic sharing of identical pages found in different
-+ * memory areas, even if they are not shared by fork().
-+ */
-+
-+/* if !CONFIG_UKSM this file should not be compiled at all. */
-+#ifdef CONFIG_UKSM
-+
-+#include <linux/bitops.h>
-+#include <linux/mm.h>
-+#include <linux/pagemap.h>
-+#include <linux/rmap.h>
-+#include <linux/sched.h>
-+
-+extern unsigned long zero_pfn __read_mostly;
-+extern unsigned long uksm_zero_pfn __read_mostly;
-+extern struct page *empty_uksm_zero_page;
-+
-+/* must be done before linked to mm */
-+extern void uksm_vma_add_new(struct vm_area_struct *vma);
-+extern void uksm_remove_vma(struct vm_area_struct *vma);
-+
-+#define UKSM_SLOT_NEED_SORT	(1 << 0)
-+#define UKSM_SLOT_NEED_RERAND	(1 << 1)
-+#define UKSM_SLOT_SCANNED	(1 << 2) /* It's scanned in this round */
-+#define UKSM_SLOT_FUL_SCANNED	(1 << 3)
-+#define UKSM_SLOT_IN_UKSM	(1 << 4)
-+
-+struct vma_slot {
-+	struct sradix_tree_node *snode;
-+	unsigned long sindex;
-+
-+	struct list_head slot_list;
-+	unsigned long fully_scanned_round;
-+	unsigned long dedup_num;
-+	unsigned long pages_scanned;
-+	unsigned long this_sampled;
-+	unsigned long last_scanned;
-+	unsigned long pages_to_scan;
-+	struct scan_rung *rung;
-+	struct page **rmap_list_pool;
-+	unsigned int *pool_counts;
-+	unsigned long pool_size;
-+	struct vm_area_struct *vma;
-+	struct mm_struct *mm;
-+	unsigned long ctime_j;
-+	unsigned long pages;
-+	unsigned long flags;
-+	unsigned long pages_cowed; /* pages cowed this round */
-+	unsigned long pages_merged; /* pages merged this round */
-+	unsigned long pages_bemerged;
-+
-+	/* when it has page merged in this eval round */
-+	struct list_head dedup_list;
-+};
-+
-+static inline void uksm_unmap_zero_page(pte_t pte)
-+{
-+	if (pte_pfn(pte) == uksm_zero_pfn)
-+		__dec_zone_page_state(empty_uksm_zero_page, NR_UKSM_ZERO_PAGES);
-+}
-+
-+static inline void uksm_map_zero_page(pte_t pte)
-+{
-+	if (pte_pfn(pte) == uksm_zero_pfn)
-+		__inc_zone_page_state(empty_uksm_zero_page, NR_UKSM_ZERO_PAGES);
-+}
-+
-+static inline void uksm_cow_page(struct vm_area_struct *vma, struct page *page)
-+{
-+	if (vma->uksm_vma_slot && PageKsm(page))
-+		vma->uksm_vma_slot->pages_cowed++;
-+}
-+
-+static inline void uksm_cow_pte(struct vm_area_struct *vma, pte_t pte)
-+{
-+	if (vma->uksm_vma_slot && pte_pfn(pte) == uksm_zero_pfn)
-+		vma->uksm_vma_slot->pages_cowed++;
-+}
-+
-+static inline int uksm_flags_can_scan(unsigned long vm_flags)
-+{
-+#ifdef VM_SAO
-+		if (vm_flags & VM_SAO)
-+			return 0;
-+#endif
-+
-+	return !(vm_flags & (VM_PFNMAP | VM_IO  | VM_DONTEXPAND |
-+			     VM_HUGETLB | VM_MIXEDMAP | VM_SHARED
-+			     | VM_MAYSHARE | VM_GROWSUP | VM_GROWSDOWN));
-+}
-+
-+static inline void uksm_vm_flags_mod(unsigned long *vm_flags_p)
-+{
-+	if (uksm_flags_can_scan(*vm_flags_p))
-+		*vm_flags_p |= VM_MERGEABLE;
-+}
-+
-+/*
-+ * Just a wrapper for BUG_ON for where ksm_zeropage must not be. TODO: it will
-+ * be removed when uksm zero page patch is stable enough.
-+ */
-+static inline void uksm_bugon_zeropage(pte_t pte)
-+{
-+	BUG_ON(pte_pfn(pte) == uksm_zero_pfn);
-+}
-+#else
-+static inline void uksm_vma_add_new(struct vm_area_struct *vma)
-+{
-+}
-+
-+static inline void uksm_remove_vma(struct vm_area_struct *vma)
-+{
-+}
-+
-+static inline void uksm_unmap_zero_page(pte_t pte)
-+{
-+}
-+
-+static inline void uksm_map_zero_page(pte_t pte)
-+{
-+}
-+
-+static inline void uksm_cow_page(struct vm_area_struct *vma, struct page *page)
-+{
-+}
-+
-+static inline void uksm_cow_pte(struct vm_area_struct *vma, pte_t pte)
-+{
-+}
-+
-+static inline int uksm_flags_can_scan(unsigned long vm_flags)
-+{
-+	return 0;
-+}
-+
-+static inline void uksm_vm_flags_mod(unsigned long *vm_flags_p)
-+{
-+}
-+
-+static inline void uksm_bugon_zeropage(pte_t pte)
-+{
-+}
-+#endif /* !CONFIG_UKSM */
-+#endif /* __LINUX_UKSM_H */
-diff --git a/kernel/fork.c b/kernel/fork.c
-index d66cd1014..5e0081886 100644
---- a/kernel/fork.c
-+++ b/kernel/fork.c
-@@ -588,7 +588,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
- 		__vma_link_rb(mm, tmp, rb_link, rb_parent);
- 		rb_link = &tmp->vm_rb.rb_right;
- 		rb_parent = &tmp->vm_rb;
--
-+		uksm_vma_add_new(tmp);
- 		mm->map_count++;
- 		if (!(tmp->vm_flags & VM_WIPEONFORK))
- 			retval = copy_page_range(tmp, mpnt);
-diff --git a/lib/Makefile b/lib/Makefile
-index afeff05fa..691f13e0f 100644
---- a/lib/Makefile
-+++ b/lib/Makefile
-@@ -31,7 +31,7 @@ endif
- KCSAN_SANITIZE_random32.o := n
- 
- lib-y := ctype.o string.o vsprintf.o cmdline.o \
--	 rbtree.o radix-tree.o timerqueue.o xarray.o \
-+	 rbtree.o radix-tree.o sradix-tree.o timerqueue.o xarray.o \
- 	 idr.o extable.o sha1.o irq_regs.o argv_split.o \
- 	 flex_proportions.o ratelimit.o show_mem.o \
- 	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
-diff --git a/lib/sradix-tree.c b/lib/sradix-tree.c
-new file mode 100644
-index 000000000..ab21e6309
---- /dev/null
-+++ b/lib/sradix-tree.c
-@@ -0,0 +1,476 @@
-+#include <linux/errno.h>
-+#include <linux/mm.h>
-+#include <linux/mman.h>
-+#include <linux/spinlock.h>
-+#include <linux/slab.h>
-+#include <linux/gcd.h>
-+#include <linux/sradix-tree.h>
-+
-+static inline int sradix_node_full(struct sradix_tree_root *root, struct sradix_tree_node *node)
-+{
-+	return node->fulls == root->stores_size ||
-+		(node->height == 1 && node->count == root->stores_size);
-+}
-+
-+/*
-+ *	Extend a sradix tree so it can store key @index.
-+ */
-+static int sradix_tree_extend(struct sradix_tree_root *root, unsigned long index)
-+{
-+	struct sradix_tree_node *node;
-+	unsigned int height;
-+
-+	if (unlikely(root->rnode == NULL)) {
-+		if (!(node = root->alloc()))
-+			return -ENOMEM;
-+
-+		node->height = 1;
-+		root->rnode = node;
-+		root->height = 1;
-+	}
-+
-+	/* Figure out what the height should be.  */
-+	height = root->height;
-+	index >>= root->shift * height;
-+
-+	while (index) {
-+		index >>= root->shift;
-+		height++;
-+	}
-+
-+	while (height > root->height) {
-+		unsigned int newheight;
-+
-+		if (!(node = root->alloc()))
-+			return -ENOMEM;
-+
-+		/* Increase the height.  */
-+		node->stores[0] = root->rnode;
-+		root->rnode->parent = node;
-+		if (root->extend)
-+			root->extend(node, root->rnode);
-+
-+		newheight = root->height + 1;
-+		node->height = newheight;
-+		node->count = 1;
-+		if (sradix_node_full(root, root->rnode))
-+			node->fulls = 1;
-+
-+		root->rnode = node;
-+		root->height = newheight;
-+	}
-+
-+	return 0;
-+}
-+
-+/*
-+ * Search the next item from the current node, that is not NULL
-+ * and can satify root->iter().
-+ */
-+void *sradix_tree_next(struct sradix_tree_root *root,
-+		       struct sradix_tree_node *node, unsigned long index,
-+		       int (*iter)(void *item, unsigned long height))
-+{
-+	unsigned long offset;
-+	void *item;
-+
-+	if (unlikely(node == NULL)) {
-+		node = root->rnode;
-+		for (offset = 0; offset < root->stores_size; offset++) {
-+			item = node->stores[offset];
-+			if (item && (!iter || iter(item, node->height)))
-+				break;
-+		}
-+
-+		if (unlikely(offset >= root->stores_size))
-+			return NULL;
-+
-+		if (node->height == 1)
-+			return item;
-+		else
-+			goto go_down;
-+	}
-+
-+	while (node) {
-+		offset = (index & root->mask) + 1;
-+		for (; offset < root->stores_size; offset++) {
-+			item = node->stores[offset];
-+			if (item && (!iter || iter(item, node->height)))
-+				break;
-+		}
-+
-+		if (offset < root->stores_size)
-+			break;
-+
-+		node = node->parent;
-+		index >>= root->shift;
-+	}
-+
-+	if (!node)
-+		return NULL;
-+
-+	while (node->height > 1) {
-+go_down:
-+		node = item;
-+		for (offset = 0; offset < root->stores_size; offset++) {
-+			item = node->stores[offset];
-+			if (item && (!iter || iter(item, node->height)))
-+				break;
-+		}
-+
-+		if (unlikely(offset >= root->stores_size))
-+			return NULL;
-+	}
-+
-+	BUG_ON(offset > root->stores_size);
-+
-+	return item;
-+}
-+
-+/*
-+ * Blindly insert the item to the tree. Typically, we reuse the
-+ * first empty store item.
-+ */
-+int sradix_tree_enter(struct sradix_tree_root *root, void **item, int num)
-+{
-+	unsigned long index;
-+	unsigned int height;
-+	struct sradix_tree_node *node, *tmp = NULL;
-+	int offset, offset_saved;
-+	void **store = NULL;
-+	int error, i, j, shift;
-+
-+go_on:
-+	index = root->min;
-+
-+	if (root->enter_node && !sradix_node_full(root, root->enter_node)) {
-+		node = root->enter_node;
-+		BUG_ON((index >> (root->shift * root->height)));
-+	} else {
-+		node = root->rnode;
-+		if (node == NULL || (index >> (root->shift * root->height))
-+		    || sradix_node_full(root, node)) {
-+			error = sradix_tree_extend(root, index);
-+			if (error)
-+				return error;
-+
-+			node = root->rnode;
-+		}
-+	}
-+
-+
-+	height = node->height;
-+	shift = (height - 1) * root->shift;
-+	offset = (index >> shift) & root->mask;
-+	while (shift > 0) {
-+		offset_saved = offset;
-+		for (; offset < root->stores_size; offset++) {
-+			store = &node->stores[offset];
-+			tmp = *store;
-+
-+			if (!tmp || !sradix_node_full(root, tmp))
-+				break;
-+		}
-+		BUG_ON(offset >= root->stores_size);
-+
-+		if (offset != offset_saved) {
-+			index += (offset - offset_saved) << shift;
-+			index &= ~((1UL << shift) - 1);
-+		}
-+
-+		if (!tmp) {
-+			if (!(tmp = root->alloc()))
-+				return -ENOMEM;
-+
-+			tmp->height = shift / root->shift;
-+			*store = tmp;
-+			tmp->parent = node;
-+			node->count++;
-+//			if (root->extend)
-+//				root->extend(node, tmp);
-+		}
-+
-+		node = tmp;
-+		shift -= root->shift;
-+		offset = (index >> shift) & root->mask;
-+	}
-+
-+	BUG_ON(node->height != 1);
-+
-+
-+	store = &node->stores[offset];
-+	for (i = 0, j = 0;
-+	      j < root->stores_size - node->count &&
-+	      i < root->stores_size - offset && j < num; i++) {
-+		if (!store[i]) {
-+			store[i] = item[j];
-+			if (root->assign)
-+				root->assign(node, index + i, item[j]);
-+			j++;
-+		}
-+	}
-+
-+	node->count += j;
-+	root->num += j;
-+	num -= j;
-+
-+	while (sradix_node_full(root, node)) {
-+		node = node->parent;
-+		if (!node)
-+			break;
-+
-+		node->fulls++;
-+	}
-+
-+	if (unlikely(!node)) {
-+		/* All nodes are full */
-+		root->min = 1 << (root->height * root->shift);
-+		root->enter_node = NULL;
-+	} else {
-+		root->min = index + i - 1;
-+		root->min |= (1UL << (node->height - 1)) - 1;
-+		root->min++;
-+		root->enter_node = node;
-+	}
-+
-+	if (num) {
-+		item += j;
-+		goto go_on;
-+	}
-+
-+	return 0;
-+}
-+
-+
-+/**
-+ *	sradix_tree_shrink    -    shrink height of a sradix tree to minimal
-+ *      @root		sradix tree root
-+ *
-+ */
-+static inline void sradix_tree_shrink(struct sradix_tree_root *root)
-+{
-+	/* try to shrink tree height */
-+	while (root->height > 1) {
-+		struct sradix_tree_node *to_free = root->rnode;
-+
-+		/*
-+		 * The candidate node has more than one child, or its child
-+		 * is not at the leftmost store, we cannot shrink.
-+		 */
-+		if (to_free->count != 1 || !to_free->stores[0])
-+			break;
-+
-+		root->rnode = to_free->stores[0];
-+		root->rnode->parent = NULL;
-+		root->height--;
-+		if (unlikely(root->enter_node == to_free))
-+			root->enter_node = NULL;
-+		root->free(to_free);
-+	}
-+}
-+
-+/*
-+ * Del the item on the known leaf node and index
-+ */
-+void sradix_tree_delete_from_leaf(struct sradix_tree_root *root,
-+				  struct sradix_tree_node *node, unsigned long index)
-+{
-+	unsigned int offset;
-+	struct sradix_tree_node *start, *end;
-+
-+	BUG_ON(node->height != 1);
-+
-+	start = node;
-+	while (node && !(--node->count))
-+		node = node->parent;
-+
-+	end = node;
-+	if (!node) {
-+		root->rnode = NULL;
-+		root->height = 0;
-+		root->min = 0;
-+		root->num = 0;
-+		root->enter_node = NULL;
-+	} else {
-+		offset = (index >> (root->shift * (node->height - 1))) & root->mask;
-+		if (root->rm)
-+			root->rm(node, offset);
-+		node->stores[offset] = NULL;
-+		root->num--;
-+		if (root->min > index) {
-+			root->min = index;
-+			root->enter_node = node;
-+		}
-+	}
-+
-+	if (start != end) {
-+		do {
-+			node = start;
-+			start = start->parent;
-+			if (unlikely(root->enter_node == node))
-+				root->enter_node = end;
-+			root->free(node);
-+		} while (start != end);
-+
-+		/*
-+		 * Note that shrink may free "end", so enter_node still need to
-+		 * be checked inside.
-+		 */
-+		sradix_tree_shrink(root);
-+	} else if (node->count == root->stores_size - 1) {
-+		/* It WAS a full leaf node. Update the ancestors */
-+		node = node->parent;
-+		while (node) {
-+			node->fulls--;
-+			if (node->fulls != root->stores_size - 1)
-+				break;
-+
-+			node = node->parent;
-+		}
-+	}
-+}
-+
-+void *sradix_tree_lookup(struct sradix_tree_root *root, unsigned long index)
-+{
-+	unsigned int height, offset;
-+	struct sradix_tree_node *node;
-+	int shift;
-+
-+	node = root->rnode;
-+	if (node == NULL || (index >> (root->shift * root->height)))
-+		return NULL;
-+
-+	height = root->height;
-+	shift = (height - 1) * root->shift;
-+
-+	do {
-+		offset = (index >> shift) & root->mask;
-+		node = node->stores[offset];
-+		if (!node)
-+			return NULL;
-+
-+		shift -= root->shift;
-+	} while (shift >= 0);
-+
-+	return node;
-+}
-+
-+/*
-+ * Return the item if it exists, otherwise create it in place
-+ * and return the created item.
-+ */
-+void *sradix_tree_lookup_create(struct sradix_tree_root *root,
-+			unsigned long index, void *(*item_alloc)(void))
-+{
-+	unsigned int height, offset;
-+	struct sradix_tree_node *node, *tmp;
-+	void *item;
-+	int shift, error;
-+
-+	if (root->rnode == NULL || (index >> (root->shift * root->height))) {
-+		if (item_alloc) {
-+			error = sradix_tree_extend(root, index);
-+			if (error)
-+				return NULL;
-+		} else {
-+			return NULL;
-+		}
-+	}
-+
-+	node = root->rnode;
-+	height = root->height;
-+	shift = (height - 1) * root->shift;
-+
-+	do {
-+		offset = (index >> shift) & root->mask;
-+		if (!node->stores[offset]) {
-+			if (!(tmp = root->alloc()))
-+				return NULL;
-+
-+			tmp->height = shift / root->shift;
-+			node->stores[offset] = tmp;
-+			tmp->parent = node;
-+			node->count++;
-+			node = tmp;
-+		} else {
-+			node = node->stores[offset];
-+		}
-+
-+		shift -= root->shift;
-+	} while (shift > 0);
-+
-+	BUG_ON(node->height != 1);
-+	offset = index & root->mask;
-+	if (node->stores[offset]) {
-+		return node->stores[offset];
-+	} else if (item_alloc) {
-+		if (!(item = item_alloc()))
-+			return NULL;
-+
-+		node->stores[offset] = item;
-+
-+		/*
-+		 * NOTE: we do NOT call root->assign here, since this item is
-+		 * newly created by us having no meaning. Caller can call this
-+		 * if it's necessary to do so.
-+		 */
-+
-+		node->count++;
-+		root->num++;
-+
-+		while (sradix_node_full(root, node)) {
-+			node = node->parent;
-+			if (!node)
-+				break;
-+
-+			node->fulls++;
-+		}
-+
-+		if (unlikely(!node)) {
-+			/* All nodes are full */
-+			root->min = 1 << (root->height * root->shift);
-+		} else {
-+			if (root->min == index) {
-+				root->min |= (1UL << (node->height - 1)) - 1;
-+				root->min++;
-+				root->enter_node = node;
-+			}
-+		}
-+
-+		return item;
-+	} else {
-+		return NULL;
-+	}
-+
-+}
-+
-+int sradix_tree_delete(struct sradix_tree_root *root, unsigned long index)
-+{
-+	unsigned int height, offset;
-+	struct sradix_tree_node *node;
-+	int shift;
-+
-+	node = root->rnode;
-+	if (node == NULL || (index >> (root->shift * root->height)))
-+		return -ENOENT;
-+
-+	height = root->height;
-+	shift = (height - 1) * root->shift;
-+
-+	do {
-+		offset = (index >> shift) & root->mask;
-+		node = node->stores[offset];
-+		if (!node)
-+			return -ENOENT;
-+
-+		shift -= root->shift;
-+	} while (shift > 0);
-+
-+	offset = index & root->mask;
-+	if (!node->stores[offset])
-+		return -ENOENT;
-+
-+	sradix_tree_delete_from_leaf(root, node, index);
-+
-+	return 0;
-+}
-diff --git a/mm/Kconfig b/mm/Kconfig
-index f730605b8..89d11e029 100644
---- a/mm/Kconfig
-+++ b/mm/Kconfig
-@@ -317,6 +317,32 @@ config KSM
- 	  See Documentation/vm/ksm.rst for more information: KSM is inactive
- 	  until a program has madvised that an area is MADV_MERGEABLE, and
- 	  root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
-+choice
-+	prompt "Choose UKSM/KSM strategy"
-+	default UKSM
-+	depends on KSM
-+	help
-+	  This option allows to select a UKSM/KSM stragety.
-+
-+config UKSM
-+	bool "Ultra-KSM for page merging"
-+	depends on KSM
-+	help
-+	UKSM is inspired by the Linux kernel project \u2014 KSM(Kernel Same
-+	page Merging), but with a fundamentally rewritten core algorithm. With
-+	an advanced algorithm, UKSM now can transparently scans all anonymously
-+	mapped user space applications with an significantly improved scan speed
-+	and CPU efficiency. Since KVM is friendly to KSM, KVM can also benefit from
-+	UKSM. Now UKSM has its first stable release and first real world enterprise user.
-+	For more information, please goto its project page.
-+	(github.com/dolohow/uksm)
-+
-+config KSM_LEGACY
-+	bool "Legacy KSM implementation"
-+	depends on KSM
-+	help
-+	The legacy KSM implementation from Red Hat.
-+endchoice
- 
- config DEFAULT_MMAP_MIN_ADDR
- 	int "Low address space to protect from user allocation"
-diff --git a/mm/Makefile b/mm/Makefile
-index b6cd2fffa..abe1ab4d4 100644
---- a/mm/Makefile
-+++ b/mm/Makefile
-@@ -76,7 +76,8 @@ obj-$(CONFIG_SPARSEMEM)	+= sparse.o
- obj-$(CONFIG_SPARSEMEM_VMEMMAP) += sparse-vmemmap.o
- obj-$(CONFIG_SLOB) += slob.o
- obj-$(CONFIG_MMU_NOTIFIER) += mmu_notifier.o
--obj-$(CONFIG_KSM) += ksm.o
-+obj-$(CONFIG_KSM_LEGACY) += ksm.o
-+obj-$(CONFIG_UKSM) += uksm.o
- obj-$(CONFIG_PAGE_POISONING) += page_poison.o
- obj-$(CONFIG_SLAB) += slab.o
- obj-$(CONFIG_SLUB) += slub.o
-diff --git a/mm/ksm.c b/mm/ksm.c
-index 9694ee2c7..63af6a528 100644
---- a/mm/ksm.c
-+++ b/mm/ksm.c
-@@ -858,17 +858,6 @@ static int unmerge_ksm_pages(struct vm_area_struct *vma,
- 	return err;
- }
- 
--static inline struct stable_node *page_stable_node(struct page *page)
--{
--	return PageKsm(page) ? page_rmapping(page) : NULL;
--}
--
--static inline void set_page_stable_node(struct page *page,
--					struct stable_node *stable_node)
--{
--	page->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM);
--}
--
- #ifdef CONFIG_SYSFS
- /*
-  * Only called through the sysfs control interface:
-diff --git a/mm/memory.c b/mm/memory.c
-index feff48e14..9fe7c8e59 100644
---- a/mm/memory.c
-+++ b/mm/memory.c
-@@ -146,6 +146,25 @@ EXPORT_SYMBOL(zero_pfn);
- 
- unsigned long highest_memmap_pfn __read_mostly;
- 
-+#ifdef CONFIG_UKSM
-+unsigned long uksm_zero_pfn __read_mostly;
-+EXPORT_SYMBOL_GPL(uksm_zero_pfn);
-+struct page *empty_uksm_zero_page;
-+
-+static int __init setup_uksm_zero_page(void)
-+{
-+	empty_uksm_zero_page = alloc_pages(__GFP_ZERO & ~__GFP_MOVABLE, 0);
-+	if (!empty_uksm_zero_page)
-+		panic("Oh boy, that early out of memory?");
-+
-+	SetPageReserved(empty_uksm_zero_page);
-+	uksm_zero_pfn = page_to_pfn(empty_uksm_zero_page);
-+
-+	return 0;
-+}
-+core_initcall(setup_uksm_zero_page);
-+#endif
-+
- /*
-  * CONFIG_MMU architectures set up ZERO_PAGE in their paging_init()
-  */
-@@ -161,6 +180,7 @@ void mm_trace_rss_stat(struct mm_struct *mm, int member, long count)
- 	trace_rss_stat(mm, member, count);
- }
- 
-+
- #if defined(SPLIT_RSS_COUNTING)
- 
- void sync_mm_rss(struct mm_struct *mm)
-@@ -869,6 +889,11 @@ copy_present_pte(struct vm_area_struct *dst_vma, struct vm_area_struct *src_vma,
- 		get_page(page);
- 		page_dup_rmap(page, false);
- 		rss[mm_counter(page)]++;
-+
-+		/* Should return NULL in vm_normal_page() */
-+		uksm_bugon_zeropage(pte);
-+	} else {
-+		uksm_map_zero_page(pte);
- 	}
- 
- 	/*
-@@ -1248,8 +1273,10 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb,
- 			ptent = ptep_get_and_clear_full(mm, addr, pte,
- 							tlb->fullmm);
- 			tlb_remove_tlb_entry(tlb, pte, addr);
--			if (unlikely(!page))
-+			if (unlikely(!page)) {
-+				uksm_unmap_zero_page(ptent);
- 				continue;
-+			}
- 
- 			if (!PageAnon(page)) {
- 				if (pte_dirty(ptent)) {
-@@ -2597,6 +2624,7 @@ static inline bool cow_user_page(struct page *dst, struct page *src,
- 
- 	if (likely(src)) {
- 		copy_user_highpage(dst, src, addr, vma);
-+		uksm_cow_page(vma, src);
- 		return true;
- 	}
- 
-@@ -2843,6 +2871,7 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
- 							      vmf->address);
- 		if (!new_page)
- 			goto oom;
-+		uksm_cow_pte(vma, vmf->orig_pte);
- 	} else {
- 		new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma,
- 				vmf->address);
-@@ -2885,7 +2914,9 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
- 						mm_counter_file(old_page));
- 				inc_mm_counter_fast(mm, MM_ANONPAGES);
- 			}
-+			uksm_bugon_zeropage(vmf->orig_pte);
- 		} else {
-+			uksm_unmap_zero_page(vmf->orig_pte);
- 			inc_mm_counter_fast(mm, MM_ANONPAGES);
- 		}
- 		flush_cache_page(vma, vmf->address, pte_pfn(vmf->orig_pte));
-diff --git a/mm/mmap.c b/mm/mmap.c
-index dc7206032..f2b9cbd7f 100644
---- a/mm/mmap.c
-+++ b/mm/mmap.c
-@@ -46,6 +46,7 @@
- #include <linux/moduleparam.h>
- #include <linux/pkeys.h>
- #include <linux/oom.h>
-+#include <linux/ksm.h>
- #include <linux/sched/mm.h>
- 
- #include <linux/uaccess.h>
-@@ -181,6 +182,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
- 	if (vma->vm_file)
- 		fput(vma->vm_file);
- 	mpol_put(vma_policy(vma));
-+       uksm_remove_vma(vma);
- 	vm_area_free(vma);
- 	return next;
- }
-@@ -750,9 +752,16 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
- 	long adjust_next = 0;
- 	int remove_next = 0;
- 
-+/*
-+ * to avoid deadlock, ksm_remove_vma must be done before any spin_lock is
-+ * acquired
-+ */
-+	uksm_remove_vma(vma);
-+
- 	if (next && !insert) {
- 		struct vm_area_struct *exporter = NULL, *importer = NULL;
- 
-+		uksm_remove_vma(next);
- 		if (end >= next->vm_end) {
- 			/*
- 			 * vma expands, overlapping all the next, and
-@@ -883,6 +892,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
- 		end_changed = true;
- 	}
- 	vma->vm_pgoff = pgoff;
-+
- 	if (adjust_next) {
- 		next->vm_start += adjust_next;
- 		next->vm_pgoff += adjust_next >> PAGE_SHIFT;
-@@ -987,6 +997,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
- 		if (remove_next == 2) {
- 			remove_next = 1;
- 			end = next->vm_end;
-+			uksm_remove_vma(next);
- 			goto again;
- 		}
- 		else if (next)
-@@ -1013,10 +1024,14 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
- 			 */
- 			VM_WARN_ON(mm->highest_vm_end != vm_end_gap(vma));
- 		}
-+	} else {
-+		if (next && !insert)
-+			uksm_vma_add_new(next);
- 	}
- 	if (insert && file)
- 		uprobe_mmap(insert);
- 
-+	uksm_vma_add_new(vma);
- 	validate_mm(mm);
- 
- 	return 0;
-@@ -1472,6 +1487,9 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
- 	vm_flags = calc_vm_prot_bits(prot, pkey) | calc_vm_flag_bits(flags) |
- 			mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
- 
-+	/* If uksm is enabled, we add VM_MERGEABLE to new VMAs. */
-+	uksm_vm_flags_mod(&vm_flags);
-+
- 	if (flags & MAP_LOCKED)
- 		if (!can_do_mlock())
- 			return -EPERM;
-@@ -1867,6 +1885,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
- 			allow_write_access(file);
- 	}
- 	file = vma->vm_file;
-+	uksm_vma_add_new(vma);
- out:
- 	perf_event_mmap(vma);
- 
-@@ -1909,6 +1928,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
- 	if (vm_flags & VM_DENYWRITE)
- 		allow_write_access(file);
- free_vma:
-+	uksm_remove_vma(vma);
- 	vm_area_free(vma);
- unacct_error:
- 	if (charged)
-@@ -2768,6 +2788,8 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
- 	else
- 		err = vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new);
- 
-+	uksm_vma_add_new(new);
-+
- 	/* Success. */
- 	if (!err)
- 		return 0;
-@@ -3075,6 +3097,7 @@ static int do_brk_flags(unsigned long addr, unsigned long len, unsigned long fla
- 	if ((flags & (~VM_EXEC)) != 0)
- 		return -EINVAL;
- 	flags |= VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
-+	uksm_vm_flags_mod(&flags);
- 
- 	mapped_addr = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
- 	if (IS_ERR_VALUE(mapped_addr))
-@@ -3120,6 +3143,7 @@ static int do_brk_flags(unsigned long addr, unsigned long len, unsigned long fla
- 	vma->vm_flags = flags;
- 	vma->vm_page_prot = vm_get_page_prot(flags);
- 	vma_link(mm, vma, prev, rb_link, rb_parent);
-+	uksm_vma_add_new(vma);
- out:
- 	perf_event_mmap(vma);
- 	mm->total_vm += len >> PAGE_SHIFT;
-@@ -3197,6 +3221,12 @@ void exit_mmap(struct mm_struct *mm)
- 		mmap_write_unlock(mm);
- 	}
- 
-+	/*
-+	 * Taking write lock on mmap does not harm others,
-+	 * but it's crucial for uksm to avoid races.
-+	 */
-+	mmap_write_lock(mm);
-+
- 	if (mm->locked_vm) {
- 		vma = mm->mmap;
- 		while (vma) {
-@@ -3232,6 +3262,11 @@ void exit_mmap(struct mm_struct *mm)
- 		cond_resched();
- 	}
- 	vm_unacct_memory(nr_accounted);
-+
-+	mm->mmap = NULL;
-+	mm->mm_rb = RB_ROOT;
-+	vmacache_invalidate(mm);
-+	mmap_write_unlock(mm);
- }
- 
- /* Insert vm structure into process list sorted by address
-@@ -3339,6 +3374,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
- 			new_vma->vm_ops->open(new_vma);
- 		vma_link(mm, new_vma, prev, rb_link, rb_parent);
- 		*need_rmap_locks = false;
-+		uksm_vma_add_new(new_vma);
- 	}
- 	return new_vma;
- 
-@@ -3507,6 +3543,7 @@ static struct vm_area_struct *__install_special_mapping(
- 	vm_stat_account(mm, vma->vm_flags, len >> PAGE_SHIFT);
- 
- 	perf_event_mmap(vma);
-+	uksm_vma_add_new(vma);
- 
- 	return vma;
- 
-diff --git a/mm/uksm.c b/mm/uksm.c
-new file mode 100644
-index 000000000..e4732c00b
---- /dev/null
-+++ b/mm/uksm.c
-@@ -0,0 +1,5614 @@
-+/*
-+ * Ultra KSM. Copyright (C) 2011-2012 Nai Xia
-+ *
-+ * This is an improvement upon KSM. Some basic data structures and routines
-+ * are borrowed from ksm.c .
-+ *
-+ * Its new features:
-+ * 1. Full system scan:
-+ *      It automatically scans all user processes' anonymous VMAs. Kernel-user
-+ *      interaction to submit a memory area to KSM is no longer needed.
-+ *
-+ * 2. Rich area detection:
-+ *      It automatically detects rich areas containing abundant duplicated
-+ *      pages based. Rich areas are given a full scan speed. Poor areas are
-+ *      sampled at a reasonable speed with very low CPU consumption.
-+ *
-+ * 3. Ultra Per-page scan speed improvement:
-+ *      A new hash algorithm is proposed. As a result, on a machine with
-+ *      Core(TM)2 Quad Q9300 CPU in 32-bit mode and 800MHZ DDR2 main memory, it
-+ *      can scan memory areas that does not contain duplicated pages at speed of
-+ *      627MB/sec ~ 2445MB/sec and can merge duplicated areas at speed of
-+ *      477MB/sec ~ 923MB/sec.
-+ *
-+ * 4. Thrashing area avoidance:
-+ *      Thrashing area(an VMA that has frequent Ksm page break-out) can be
-+ *      filtered out. My benchmark shows it's more efficient than KSM's per-page
-+ *      hash value based volatile page detection.
-+ *
-+ *
-+ * 5. Misc changes upon KSM:
-+ *      * It has a fully x86-opitmized memcmp dedicated for 4-byte-aligned page
-+ *        comparison. It's much faster than default C version on x86.
-+ *      * rmap_item now has an struct *page member to loosely cache a
-+ *        address-->page mapping, which reduces too much time-costly
-+ *        follow_page().
-+ *      * The VMA creation/exit procedures are hooked to let the Ultra KSM know.
-+ *      * try_to_merge_two_pages() now can revert a pte if it fails. No break_
-+ *        ksm is needed for this case.
-+ *
-+ * 6. Full Zero Page consideration(contributed by Figo Zhang)
-+ *    Now uksmd consider full zero pages as special pages and merge them to an
-+ *    special unswappable uksm zero page.
-+ */
-+
-+#include <linux/errno.h>
-+#include <linux/mm.h>
-+#include <linux/fs.h>
-+#include <linux/mman.h>
-+#include <linux/sched.h>
-+#include <linux/sched/mm.h>
-+#include <linux/sched/coredump.h>
-+#include <linux/sched/cputime.h>
-+#include <linux/rwsem.h>
-+#include <linux/pagemap.h>
-+#include <linux/rmap.h>
-+#include <linux/spinlock.h>
-+#include <linux/jhash.h>
-+#include <linux/delay.h>
-+#include <linux/kthread.h>
-+#include <linux/wait.h>
-+#include <linux/slab.h>
-+#include <linux/rbtree.h>
-+#include <linux/memory.h>
-+#include <linux/mmu_notifier.h>
-+#include <linux/swap.h>
-+#include <linux/ksm.h>
-+#include <linux/crypto.h>
-+#include <linux/scatterlist.h>
-+#include <crypto/hash.h>
-+#include <linux/random.h>
-+#include <linux/math64.h>
-+#include <linux/gcd.h>
-+#include <linux/freezer.h>
-+#include <linux/oom.h>
-+#include <linux/numa.h>
-+#include <linux/sradix-tree.h>
-+
-+#include <asm/tlbflush.h>
-+#include "internal.h"
-+
-+#ifdef CONFIG_X86
-+#undef memcmp
-+
-+#ifdef CONFIG_X86_32
-+#define memcmp memcmpx86_32
-+/*
-+ * Compare 4-byte-aligned address s1 and s2, with length n
-+ */
-+int memcmpx86_32(void *s1, void *s2, size_t n)
-+{
-+	size_t num = n / 4;
-+	register int res;
-+
-+	__asm__ __volatile__
-+	(
-+	 "testl %3,%3\n\t"
-+	 "repe; cmpsd\n\t"
-+	 "je        1f\n\t"
-+	 "sbbl      %0,%0\n\t"
-+	 "orl       $1,%0\n"
-+	 "1:"
-+	 : "=&a" (res), "+&S" (s1), "+&D" (s2), "+&c" (num)
-+	 : "0" (0)
-+	 : "cc");
-+
-+	return res;
-+}
-+
-+/*
-+ * Check the page is all zero ?
-+ */
-+static int is_full_zero(const void *s1, size_t len)
-+{
-+	unsigned char same;
-+
-+	len /= 4;
-+
-+	__asm__ __volatile__
-+	("repe; scasl;"
-+	 "sete %0"
-+	 : "=qm" (same), "+D" (s1), "+c" (len)
-+	 : "a" (0)
-+	 : "cc");
-+
-+	return same;
-+}
-+
-+
-+#elif defined(CONFIG_X86_64)
-+#define memcmp memcmpx86_64
-+/*
-+ * Compare 8-byte-aligned address s1 and s2, with length n
-+ */
-+int memcmpx86_64(void *s1, void *s2, size_t n)
-+{
-+	size_t num = n / 8;
-+	register int res;
-+
-+	__asm__ __volatile__
-+	(
-+	 "testq %q3,%q3\n\t"
-+	 "repe; cmpsq\n\t"
-+	 "je        1f\n\t"
-+	 "sbbq      %q0,%q0\n\t"
-+	 "orq       $1,%q0\n"
-+	 "1:"
-+	 : "=&a" (res), "+&S" (s1), "+&D" (s2), "+&c" (num)
-+	 : "0" (0)
-+	 : "cc");
-+
-+	return res;
-+}
-+
-+static int is_full_zero(const void *s1, size_t len)
-+{
-+	unsigned char same;
-+
-+	len /= 8;
-+
-+	__asm__ __volatile__
-+	("repe; scasq;"
-+	 "sete %0"
-+	 : "=qm" (same), "+D" (s1), "+c" (len)
-+	 : "a" (0)
-+	 : "cc");
-+
-+	return same;
-+}
-+
-+#endif
-+#else
-+static int is_full_zero(const void *s1, size_t len)
-+{
-+	unsigned long *src = s1;
-+	int i;
-+
-+	len /= sizeof(*src);
-+
-+	for (i = 0; i < len; i++) {
-+		if (src[i])
-+			return 0;
-+	}
-+
-+	return 1;
-+}
-+#endif
-+
-+#define UKSM_RUNG_ROUND_FINISHED  (1 << 0)
-+#define TIME_RATIO_SCALE	10000
-+
-+#define SLOT_TREE_NODE_SHIFT	8
-+#define SLOT_TREE_NODE_STORE_SIZE	(1UL << SLOT_TREE_NODE_SHIFT)
-+struct slot_tree_node {
-+	unsigned long size;
-+	struct sradix_tree_node snode;
-+	void *stores[SLOT_TREE_NODE_STORE_SIZE];
-+};
-+
-+static struct kmem_cache *slot_tree_node_cachep;
-+
-+static struct sradix_tree_node *slot_tree_node_alloc(void)
-+{
-+	struct slot_tree_node *p;
-+
-+	p = kmem_cache_zalloc(slot_tree_node_cachep, GFP_KERNEL |
-+			      __GFP_NORETRY | __GFP_NOWARN);
-+	if (!p)
-+		return NULL;
-+
-+	return &p->snode;
-+}
-+
-+static void slot_tree_node_free(struct sradix_tree_node *node)
-+{
-+	struct slot_tree_node *p;
-+
-+	p = container_of(node, struct slot_tree_node, snode);
-+	kmem_cache_free(slot_tree_node_cachep, p);
-+}
-+
-+static void slot_tree_node_extend(struct sradix_tree_node *parent,
-+				  struct sradix_tree_node *child)
-+{
-+	struct slot_tree_node *p, *c;
-+
-+	p = container_of(parent, struct slot_tree_node, snode);
-+	c = container_of(child, struct slot_tree_node, snode);
-+
-+	p->size += c->size;
-+}
-+
-+void slot_tree_node_assign(struct sradix_tree_node *node,
-+			   unsigned int index, void *item)
-+{
-+	struct vma_slot *slot = item;
-+	struct slot_tree_node *cur;
-+
-+	slot->snode = node;
-+	slot->sindex = index;
-+
-+	while (node) {
-+		cur = container_of(node, struct slot_tree_node, snode);
-+		cur->size += slot->pages;
-+		node = node->parent;
-+	}
-+}
-+
-+void slot_tree_node_rm(struct sradix_tree_node *node, unsigned int offset)
-+{
-+	struct vma_slot *slot;
-+	struct slot_tree_node *cur;
-+	unsigned long pages;
-+
-+	if (node->height == 1) {
-+		slot = node->stores[offset];
-+		pages = slot->pages;
-+	} else {
-+		cur = container_of(node->stores[offset],
-+				   struct slot_tree_node, snode);
-+		pages = cur->size;
-+	}
-+
-+	while (node) {
-+		cur = container_of(node, struct slot_tree_node, snode);
-+		cur->size -= pages;
-+		node = node->parent;
-+	}
-+}
-+
-+unsigned long slot_iter_index;
-+int slot_iter(void *item,  unsigned long height)
-+{
-+	struct slot_tree_node *node;
-+	struct vma_slot *slot;
-+
-+	if (height == 1) {
-+		slot = item;
-+		if (slot_iter_index < slot->pages) {
-+			/*in this one*/
-+			return 1;
-+		} else {
-+			slot_iter_index -= slot->pages;
-+			return 0;
-+		}
-+
-+	} else {
-+		node = container_of(item, struct slot_tree_node, snode);
-+		if (slot_iter_index < node->size) {
-+			/*in this one*/
-+			return 1;
-+		} else {
-+			slot_iter_index -= node->size;
-+			return 0;
-+		}
-+	}
-+}
-+
-+
-+static inline void slot_tree_init_root(struct sradix_tree_root *root)
-+{
-+	init_sradix_tree_root(root, SLOT_TREE_NODE_SHIFT);
-+	root->alloc = slot_tree_node_alloc;
-+	root->free = slot_tree_node_free;
-+	root->extend = slot_tree_node_extend;
-+	root->assign = slot_tree_node_assign;
-+	root->rm = slot_tree_node_rm;
-+}
-+
-+void slot_tree_init(void)
-+{
-+	slot_tree_node_cachep = kmem_cache_create("slot_tree_node",
-+				sizeof(struct slot_tree_node), 0,
-+				SLAB_PANIC | SLAB_RECLAIM_ACCOUNT,
-+				NULL);
-+}
-+
-+
-+/* Each rung of this ladder is a list of VMAs having a same scan ratio */
-+struct scan_rung {
-+	//struct list_head scanned_list;
-+	struct sradix_tree_root vma_root;
-+	struct sradix_tree_root vma_root2;
-+
-+	struct vma_slot *current_scan;
-+	unsigned long current_offset;
-+
-+	/*
-+	 * The initial value for current_offset, it should loop over
-+	 * [0~ step - 1] to let all slot have its chance to be scanned.
-+	 */
-+	unsigned long offset_init;
-+	unsigned long step; /* dynamic step for current_offset */
-+	unsigned int flags;
-+	unsigned long pages_to_scan;
-+	//unsigned long fully_scanned_slots;
-+	/*
-+	 * a little bit tricky - if cpu_time_ratio > 0, then the value is the
-+	 * the cpu time ratio it can spend in rung_i for every scan
-+	 * period. if < 0, then it is the cpu time ratio relative to the
-+	 * max cpu percentage user specified. Both in unit of
-+	 * 1/TIME_RATIO_SCALE
-+	 */
-+	int cpu_ratio;
-+
-+	/*
-+	 * How long it will take for all slots in this rung to be fully
-+	 * scanned? If it's zero, we don't care about the cover time:
-+	 * it's fully scanned.
-+	 */
-+	unsigned int cover_msecs;
-+	//unsigned long vma_num;
-+	//unsigned long pages; /* Sum of all slot's pages in rung */
-+};
-+
-+/**
-+ * node of either the stable or unstale rbtree
-+ *
-+ */
-+struct tree_node {
-+	struct rb_node node; /* link in the main (un)stable rbtree */
-+	struct rb_root sub_root; /* rb_root for sublevel collision rbtree */
-+	u32 hash;
-+	unsigned long count; /* TODO: merged with sub_root */
-+	struct list_head all_list; /* all tree nodes in stable/unstable tree */
-+};
-+
-+/**
-+ * struct stable_node - node of the stable rbtree
-+ * @node: rb node of this ksm page in the stable tree
-+ * @hlist: hlist head of rmap_items using this ksm page
-+ * @kpfn: page frame number of this ksm page
-+ */
-+struct stable_node {
-+	struct rb_node node; /* link in sub-rbtree */
-+	struct tree_node *tree_node; /* it's tree node root in stable tree, NULL if it's in hell list */
-+	struct hlist_head hlist;
-+	unsigned long kpfn;
-+	u32 hash_max; /* if ==0 then it's not been calculated yet */
-+	struct list_head all_list; /* in a list for all stable nodes */
-+};
-+
-+/**
-+ * struct node_vma - group rmap_items linked in a same stable
-+ * node together.
-+ */
-+struct node_vma {
-+	union {
-+		struct vma_slot *slot;
-+		unsigned long key;  /* slot is used as key sorted on hlist */
-+	};
-+	struct hlist_node hlist;
-+	struct hlist_head rmap_hlist;
-+	struct stable_node *head;
-+};
-+
-+/**
-+ * struct rmap_item - reverse mapping item for virtual addresses
-+ * @rmap_list: next rmap_item in mm_slot's singly-linked rmap_list
-+ * @anon_vma: pointer to anon_vma for this mm,address, when in stable tree
-+ * @mm: the memory structure this rmap_item is pointing into
-+ * @address: the virtual address this rmap_item tracks (+ flags in low bits)
-+ * @node: rb node of this rmap_item in the unstable tree
-+ * @head: pointer to stable_node heading this list in the stable tree
-+ * @hlist: link into hlist of rmap_items hanging off that stable_node
-+ */
-+struct rmap_item {
-+	struct vma_slot *slot;
-+	struct page *page;
-+	unsigned long address;	/* + low bits used for flags below */
-+	unsigned long hash_round;
-+	unsigned long entry_index;
-+	union {
-+		struct {/* when in unstable tree */
-+			struct rb_node node;
-+			struct tree_node *tree_node;
-+			u32 hash_max;
-+		};
-+		struct { /* when in stable tree */
-+			struct node_vma *head;
-+			struct hlist_node hlist;
-+			struct anon_vma *anon_vma;
-+		};
-+	};
-+} __aligned(4);
-+
-+struct rmap_list_entry {
-+	union {
-+		struct rmap_item *item;
-+		unsigned long addr;
-+	};
-+	/* lowest bit is used for is_addr tag */
-+} __aligned(4); /* 4 aligned to fit in to pages*/
-+
-+
-+/* Basic data structure definition ends */
-+
-+
-+/*
-+ * Flags for rmap_item to judge if it's listed in the stable/unstable tree.
-+ * The flags use the low bits of rmap_item.address
-+ */
-+#define UNSTABLE_FLAG	0x1
-+#define STABLE_FLAG	0x2
-+#define get_rmap_addr(x)	((x)->address & PAGE_MASK)
-+
-+/*
-+ * rmap_list_entry helpers
-+ */
-+#define IS_ADDR_FLAG	1
-+#define is_addr(ptr)		((unsigned long)(ptr) & IS_ADDR_FLAG)
-+#define set_is_addr(ptr)	((ptr) |= IS_ADDR_FLAG)
-+#define get_clean_addr(ptr)	(((ptr) & ~(__typeof__(ptr))IS_ADDR_FLAG))
-+
-+
-+/*
-+ * High speed caches for frequently allocated and freed structs
-+ */
-+static struct kmem_cache *rmap_item_cache;
-+static struct kmem_cache *stable_node_cache;
-+static struct kmem_cache *node_vma_cache;
-+static struct kmem_cache *vma_slot_cache;
-+static struct kmem_cache *tree_node_cache;
-+#define UKSM_KMEM_CACHE(__struct, __flags) kmem_cache_create("uksm_"#__struct,\
-+		sizeof(struct __struct), __alignof__(struct __struct),\
-+		(__flags), NULL)
-+
-+/* Array of all scan_rung, uksm_scan_ladder[0] having the minimum scan ratio */
-+#define SCAN_LADDER_SIZE 4
-+static struct scan_rung uksm_scan_ladder[SCAN_LADDER_SIZE];
-+
-+/* The evaluation rounds uksmd has finished */
-+static unsigned long long uksm_eval_round = 1;
-+
-+/*
-+ * we add 1 to this var when we consider we should rebuild the whole
-+ * unstable tree.
-+ */
-+static unsigned long uksm_hash_round = 1;
-+
-+/*
-+ * How many times the whole memory is scanned.
-+ */
-+static unsigned long long fully_scanned_round = 1;
-+
-+/* The total number of virtual pages of all vma slots */
-+static u64 uksm_pages_total;
-+
-+/* The number of pages has been scanned since the start up */
-+static u64 uksm_pages_scanned;
-+
-+static u64 scanned_virtual_pages;
-+
-+/* The number of pages has been scanned since last encode_benefit call */
-+static u64 uksm_pages_scanned_last;
-+
-+/* If the scanned number is tooo large, we encode it here */
-+static u64 pages_scanned_stored;
-+
-+static unsigned long pages_scanned_base;
-+
-+/* The number of nodes in the stable tree */
-+static unsigned long uksm_pages_shared;
-+
-+/* The number of page slots additionally sharing those nodes */
-+static unsigned long uksm_pages_sharing;
-+
-+/* The number of nodes in the unstable tree */
-+static unsigned long uksm_pages_unshared;
-+
-+/*
-+ * Milliseconds ksmd should sleep between scans,
-+ * >= 100ms to be consistent with
-+ * scan_time_to_sleep_msec()
-+ */
-+static unsigned int uksm_sleep_jiffies;
-+
-+/* The real value for the uksmd next sleep */
-+static unsigned int uksm_sleep_real;
-+
-+/* Saved value for user input uksm_sleep_jiffies when it's enlarged */
-+static unsigned int uksm_sleep_saved;
-+
-+/* Max percentage of cpu utilization ksmd can take to scan in one batch */
-+static unsigned int uksm_max_cpu_percentage;
-+
-+static int uksm_cpu_governor;
-+
-+static char *uksm_cpu_governor_str[4] = { "full", "medium", "low", "quiet" };
-+
-+struct uksm_cpu_preset_s {
-+	int cpu_ratio[SCAN_LADDER_SIZE];
-+	unsigned int cover_msecs[SCAN_LADDER_SIZE];
-+	unsigned int max_cpu; /* percentage */
-+};
-+
-+struct uksm_cpu_preset_s uksm_cpu_preset[4] = {
-+	{ {20, 40, -2500, -10000}, {1000, 500, 200, 50}, 95},
-+	{ {20, 30, -2500, -10000}, {1000, 500, 400, 100}, 50},
-+	{ {10, 20, -5000, -10000}, {1500, 1000, 1000, 250}, 20},
-+	{ {10, 20, 40, 75}, {2000, 1000, 1000, 1000}, 1},
-+};
-+
-+/* The default value for uksm_ema_page_time if it's not initialized */
-+#define UKSM_PAGE_TIME_DEFAULT	500
-+
-+/*cost to scan one page by expotional moving average in nsecs */
-+static unsigned long uksm_ema_page_time = UKSM_PAGE_TIME_DEFAULT;
-+
-+/* The expotional moving average alpha weight, in percentage. */
-+#define EMA_ALPHA	20
-+
-+/*
-+ * The threshold used to filter out thrashing areas,
-+ * If it == 0, filtering is disabled, otherwise it's the percentage up-bound
-+ * of the thrashing ratio of all areas. Any area with a bigger thrashing ratio
-+ * will be considered as having a zero duplication ratio.
-+ */
-+static unsigned int uksm_thrash_threshold = 50;
-+
-+/* How much dedup ratio is considered to be abundant*/
-+static unsigned int uksm_abundant_threshold = 10;
-+
-+/* All slots having merged pages in this eval round. */
-+struct list_head vma_slot_dedup = LIST_HEAD_INIT(vma_slot_dedup);
-+
-+/* How many times the ksmd has slept since startup */
-+static unsigned long long uksm_sleep_times;
-+
-+#define UKSM_RUN_STOP	0
-+#define UKSM_RUN_MERGE	1
-+static unsigned int uksm_run = 1;
-+
-+static DECLARE_WAIT_QUEUE_HEAD(uksm_thread_wait);
-+static DEFINE_MUTEX(uksm_thread_mutex);
-+
-+/*
-+ * List vma_slot_new is for newly created vma_slot waiting to be added by
-+ * ksmd. If one cannot be added(e.g. due to it's too small), it's moved to
-+ * vma_slot_noadd. vma_slot_del is the list for vma_slot whose corresponding
-+ * VMA has been removed/freed.
-+ */
-+struct list_head vma_slot_new = LIST_HEAD_INIT(vma_slot_new);
-+struct list_head vma_slot_noadd = LIST_HEAD_INIT(vma_slot_noadd);
-+struct list_head vma_slot_del = LIST_HEAD_INIT(vma_slot_del);
-+static DEFINE_SPINLOCK(vma_slot_list_lock);
-+
-+/* The unstable tree heads */
-+static struct rb_root root_unstable_tree = RB_ROOT;
-+
-+/*
-+ * All tree_nodes are in a list to be freed at once when unstable tree is
-+ * freed after each scan round.
-+ */
-+static struct list_head unstable_tree_node_list =
-+				LIST_HEAD_INIT(unstable_tree_node_list);
-+
-+/* List contains all stable nodes */
-+static struct list_head stable_node_list = LIST_HEAD_INIT(stable_node_list);
-+
-+/*
-+ * When the hash strength is changed, the stable tree must be delta_hashed and
-+ * re-structured. We use two set of below structs to speed up the
-+ * re-structuring of stable tree.
-+ */
-+static struct list_head
-+stable_tree_node_list[2] = {LIST_HEAD_INIT(stable_tree_node_list[0]),
-+			    LIST_HEAD_INIT(stable_tree_node_list[1])};
-+
-+static struct list_head *stable_tree_node_listp = &stable_tree_node_list[0];
-+static struct rb_root root_stable_tree[2] = {RB_ROOT, RB_ROOT};
-+static struct rb_root *root_stable_treep = &root_stable_tree[0];
-+static unsigned long stable_tree_index;
-+
-+/* The hash strength needed to hash a full page */
-+#define HASH_STRENGTH_FULL		(PAGE_SIZE / sizeof(u32))
-+
-+/* The hash strength needed for loop-back hashing */
-+#define HASH_STRENGTH_MAX		(HASH_STRENGTH_FULL + 10)
-+
-+/* The random offsets in a page */
-+static u32 *random_nums;
-+
-+/* The hash strength */
-+static unsigned long hash_strength = HASH_STRENGTH_FULL >> 4;
-+
-+/* The delta value each time the hash strength increases or decreases */
-+static unsigned long hash_strength_delta;
-+#define HASH_STRENGTH_DELTA_MAX	5
-+
-+/* The time we have saved due to random_sample_hash */
-+static u64 rshash_pos;
-+
-+/* The time we have wasted due to hash collision */
-+static u64 rshash_neg;
-+
-+struct uksm_benefit {
-+	u64 pos;
-+	u64 neg;
-+	u64 scanned;
-+	unsigned long base;
-+} benefit;
-+
-+/*
-+ * The relative cost of memcmp, compared to 1 time unit of random sample
-+ * hash, this value is tested when ksm module is initialized
-+ */
-+static unsigned long memcmp_cost;
-+
-+static unsigned long  rshash_neg_cont_zero;
-+static unsigned long  rshash_cont_obscure;
-+
-+/* The possible states of hash strength adjustment heuristic */
-+enum rshash_states {
-+		RSHASH_STILL,
-+		RSHASH_TRYUP,
-+		RSHASH_TRYDOWN,
-+		RSHASH_NEW,
-+		RSHASH_PRE_STILL,
-+};
-+
-+/* The possible direction we are about to adjust hash strength */
-+enum rshash_direct {
-+	GO_UP,
-+	GO_DOWN,
-+	OBSCURE,
-+	STILL,
-+};
-+
-+/* random sampling hash state machine */
-+static struct {
-+	enum rshash_states state;
-+	enum rshash_direct pre_direct;
-+	u8 below_count;
-+	/* Keep a lookup window of size 5, iff above_count/below_count > 3
-+	 * in this window we stop trying.
-+	 */
-+	u8 lookup_window_index;
-+	u64 stable_benefit;
-+	unsigned long turn_point_down;
-+	unsigned long turn_benefit_down;
-+	unsigned long turn_point_up;
-+	unsigned long turn_benefit_up;
-+	unsigned long stable_point;
-+} rshash_state;
-+
-+/*zero page hash table, hash_strength [0 ~ HASH_STRENGTH_MAX]*/
-+static u32 *zero_hash_table;
-+
-+static inline struct node_vma *alloc_node_vma(void)
-+{
-+	struct node_vma *node_vma;
-+
-+	node_vma = kmem_cache_zalloc(node_vma_cache, GFP_KERNEL |
-+				     __GFP_NORETRY | __GFP_NOWARN);
-+	if (node_vma) {
-+		INIT_HLIST_HEAD(&node_vma->rmap_hlist);
-+		INIT_HLIST_NODE(&node_vma->hlist);
-+	}
-+	return node_vma;
-+}
-+
-+static inline void free_node_vma(struct node_vma *node_vma)
-+{
-+	kmem_cache_free(node_vma_cache, node_vma);
-+}
-+
-+
-+static inline struct vma_slot *alloc_vma_slot(void)
-+{
-+	struct vma_slot *slot;
-+
-+	/*
-+	 * In case ksm is not initialized by now.
-+	 * Oops, we need to consider the call site of uksm_init() in the future.
-+	 */
-+	if (!vma_slot_cache)
-+		return NULL;
-+
-+	slot = kmem_cache_zalloc(vma_slot_cache, GFP_KERNEL |
-+				 __GFP_NORETRY | __GFP_NOWARN);
-+	if (slot) {
-+		INIT_LIST_HEAD(&slot->slot_list);
-+		INIT_LIST_HEAD(&slot->dedup_list);
-+		slot->flags |= UKSM_SLOT_NEED_RERAND;
-+	}
-+	return slot;
-+}
-+
-+static inline void free_vma_slot(struct vma_slot *vma_slot)
-+{
-+	kmem_cache_free(vma_slot_cache, vma_slot);
-+}
-+
-+
-+
-+static inline struct rmap_item *alloc_rmap_item(void)
-+{
-+	struct rmap_item *rmap_item;
-+
-+	rmap_item = kmem_cache_zalloc(rmap_item_cache, GFP_KERNEL |
-+				      __GFP_NORETRY | __GFP_NOWARN);
-+	if (rmap_item) {
-+		/* bug on lowest bit is not clear for flag use */
-+		BUG_ON(is_addr(rmap_item));
-+	}
-+	return rmap_item;
-+}
-+
-+static inline void free_rmap_item(struct rmap_item *rmap_item)
-+{
-+	rmap_item->slot = NULL;	/* debug safety */
-+	kmem_cache_free(rmap_item_cache, rmap_item);
-+}
-+
-+static inline struct stable_node *alloc_stable_node(void)
-+{
-+	struct stable_node *node;
-+
-+	node = kmem_cache_alloc(stable_node_cache, GFP_KERNEL |
-+				__GFP_NORETRY | __GFP_NOWARN);
-+	if (!node)
-+		return NULL;
-+
-+	INIT_HLIST_HEAD(&node->hlist);
-+	list_add(&node->all_list, &stable_node_list);
-+	return node;
-+}
-+
-+static inline void free_stable_node(struct stable_node *stable_node)
-+{
-+	list_del(&stable_node->all_list);
-+	kmem_cache_free(stable_node_cache, stable_node);
-+}
-+
-+static inline struct tree_node *alloc_tree_node(struct list_head *list)
-+{
-+	struct tree_node *node;
-+
-+	node = kmem_cache_zalloc(tree_node_cache, GFP_KERNEL |
-+				 __GFP_NORETRY | __GFP_NOWARN);
-+	if (!node)
-+		return NULL;
-+
-+	list_add(&node->all_list, list);
-+	return node;
-+}
-+
-+static inline void free_tree_node(struct tree_node *node)
-+{
-+	list_del(&node->all_list);
-+	kmem_cache_free(tree_node_cache, node);
-+}
-+
-+static void uksm_drop_anon_vma(struct rmap_item *rmap_item)
-+{
-+	struct anon_vma *anon_vma = rmap_item->anon_vma;
-+
-+	put_anon_vma(anon_vma);
-+}
-+
-+
-+/**
-+ * Remove a stable node from stable_tree, may unlink from its tree_node and
-+ * may remove its parent tree_node if no other stable node is pending.
-+ *
-+ * @stable_node	    The node need to be removed
-+ * @unlink_rb	    Will this node be unlinked from the rbtree?
-+ * @remove_tree_    node Will its tree_node be removed if empty?
-+ */
-+static void remove_node_from_stable_tree(struct stable_node *stable_node,
-+					 int unlink_rb,  int remove_tree_node)
-+{
-+	struct node_vma *node_vma;
-+	struct rmap_item *rmap_item;
-+	struct hlist_node *n;
-+
-+	if (!hlist_empty(&stable_node->hlist)) {
-+		hlist_for_each_entry_safe(node_vma, n,
-+					  &stable_node->hlist, hlist) {
-+			hlist_for_each_entry(rmap_item, &node_vma->rmap_hlist, hlist) {
-+				uksm_pages_sharing--;
-+
-+				uksm_drop_anon_vma(rmap_item);
-+				rmap_item->address &= PAGE_MASK;
-+			}
-+			free_node_vma(node_vma);
-+			cond_resched();
-+		}
-+
-+		/* the last one is counted as shared */
-+		uksm_pages_shared--;
-+		uksm_pages_sharing++;
-+	}
-+
-+	if (stable_node->tree_node && unlink_rb) {
-+		rb_erase(&stable_node->node,
-+			 &stable_node->tree_node->sub_root);
-+
-+		if (RB_EMPTY_ROOT(&stable_node->tree_node->sub_root) &&
-+		    remove_tree_node) {
-+			rb_erase(&stable_node->tree_node->node,
-+				 root_stable_treep);
-+			free_tree_node(stable_node->tree_node);
-+		} else {
-+			stable_node->tree_node->count--;
-+		}
-+	}
-+
-+	free_stable_node(stable_node);
-+}
-+
-+
-+/*
-+ * get_uksm_page: checks if the page indicated by the stable node
-+ * is still its ksm page, despite having held no reference to it.
-+ * In which case we can trust the content of the page, and it
-+ * returns the gotten page; but if the page has now been zapped,
-+ * remove the stale node from the stable tree and return NULL.
-+ *
-+ * You would expect the stable_node to hold a reference to the ksm page.
-+ * But if it increments the page's count, swapping out has to wait for
-+ * ksmd to come around again before it can free the page, which may take
-+ * seconds or even minutes: much too unresponsive.  So instead we use a
-+ * "keyhole reference": access to the ksm page from the stable node peeps
-+ * out through its keyhole to see if that page still holds the right key,
-+ * pointing back to this stable node.  This relies on freeing a PageAnon
-+ * page to reset its page->mapping to NULL, and relies on no other use of
-+ * a page to put something that might look like our key in page->mapping.
-+ *
-+ * include/linux/pagemap.h page_cache_get_speculative() is a good reference,
-+ * but this is different - made simpler by uksm_thread_mutex being held, but
-+ * interesting for assuming that no other use of the struct page could ever
-+ * put our expected_mapping into page->mapping (or a field of the union which
-+ * coincides with page->mapping).  The RCU calls are not for KSM at all, but
-+ * to keep the page_count protocol described with page_cache_get_speculative.
-+ *
-+ * Note: it is possible that get_uksm_page() will return NULL one moment,
-+ * then page the next, if the page is in between page_freeze_refs() and
-+ * page_unfreeze_refs(): this shouldn't be a problem anywhere, the page
-+ * is on its way to being freed; but it is an anomaly to bear in mind.
-+ *
-+ * @unlink_rb:			if the removal of this node will firstly unlink from
-+ * its rbtree. stable_node_reinsert will prevent this when restructuring the
-+ * node from its old tree.
-+ *
-+ * @remove_tree_node:	if this is the last one of its tree_node, will the
-+ * tree_node be freed ? If we are inserting stable node, this tree_node may
-+ * be reused, so don't free it.
-+ */
-+static struct page *get_uksm_page(struct stable_node *stable_node,
-+				 int unlink_rb, int remove_tree_node)
-+{
-+	struct page *page;
-+	void *expected_mapping;
-+	unsigned long kpfn;
-+
-+	expected_mapping = (void *)((unsigned long)stable_node |
-+				    PAGE_MAPPING_KSM);
-+again:
-+	kpfn = READ_ONCE(stable_node->kpfn);
-+	page = pfn_to_page(kpfn);
-+
-+	/*
-+	 * page is computed from kpfn, so on most architectures reading
-+	 * page->mapping is naturally ordered after reading node->kpfn,
-+	 * but on Alpha we need to be more careful.
-+	 */
-+	smp_rmb();
-+
-+	if (READ_ONCE(page->mapping) != expected_mapping)
-+		goto stale;
-+
-+	/*
-+	 * We cannot do anything with the page while its refcount is 0.
-+	 * Usually 0 means free, or tail of a higher-order page: in which
-+	 * case this node is no longer referenced, and should be freed;
-+	 * however, it might mean that the page is under page_freeze_refs().
-+	 * The __remove_mapping() case is easy, again the node is now stale;
-+	 * but if page is swapcache in migrate_page_move_mapping(), it might
-+	 * still be our page, in which case it's essential to keep the node.
-+	 */
-+	while (!get_page_unless_zero(page)) {
-+		/*
-+		 * Another check for page->mapping != expected_mapping would
-+		 * work here too.  We have chosen the !PageSwapCache test to
-+		 * optimize the common case, when the page is or is about to
-+		 * be freed: PageSwapCache is cleared (under spin_lock_irq)
-+		 * in the freeze_refs section of __remove_mapping(); but Anon
-+		 * page->mapping reset to NULL later, in free_pages_prepare().
-+		 */
-+		if (!PageSwapCache(page))
-+			goto stale;
-+		cpu_relax();
-+	}
-+
-+	if (READ_ONCE(page->mapping) != expected_mapping) {
-+		put_page(page);
-+		goto stale;
-+	}
-+
-+	lock_page(page);
-+	if (READ_ONCE(page->mapping) != expected_mapping) {
-+		unlock_page(page);
-+		put_page(page);
-+		goto stale;
-+	}
-+	unlock_page(page);
-+	return page;
-+stale:
-+	/*
-+	 * We come here from above when page->mapping or !PageSwapCache
-+	 * suggests that the node is stale; but it might be under migration.
-+	 * We need smp_rmb(), matching the smp_wmb() in ksm_migrate_page(),
-+	 * before checking whether node->kpfn has been changed.
-+	 */
-+	smp_rmb();
-+	if (stable_node->kpfn != kpfn)
-+		goto again;
-+
-+	remove_node_from_stable_tree(stable_node, unlink_rb, remove_tree_node);
-+
-+	return NULL;
-+}
-+
-+/*
-+ * Removing rmap_item from stable or unstable tree.
-+ * This function will clean the information from the stable/unstable tree.
-+ */
-+static inline void remove_rmap_item_from_tree(struct rmap_item *rmap_item)
-+{
-+	if (rmap_item->address & STABLE_FLAG) {
-+		struct stable_node *stable_node;
-+		struct node_vma *node_vma;
-+		struct page *page;
-+
-+		node_vma = rmap_item->head;
-+		stable_node = node_vma->head;
-+		page = get_uksm_page(stable_node, 1, 1);
-+		if (!page)
-+			goto out;
-+
-+		/*
-+		 * page lock is needed because it's racing with
-+		 * try_to_unmap_ksm(), etc.
-+		 */
-+		lock_page(page);
-+		hlist_del(&rmap_item->hlist);
-+
-+		if (hlist_empty(&node_vma->rmap_hlist)) {
-+			hlist_del(&node_vma->hlist);
-+			free_node_vma(node_vma);
-+		}
-+		unlock_page(page);
-+
-+		put_page(page);
-+		if (hlist_empty(&stable_node->hlist)) {
-+			/* do NOT call remove_node_from_stable_tree() here,
-+			 * it's possible for a forked rmap_item not in
-+			 * stable tree while the in-tree rmap_items were
-+			 * deleted.
-+			 */
-+			uksm_pages_shared--;
-+		} else
-+			uksm_pages_sharing--;
-+
-+
-+		uksm_drop_anon_vma(rmap_item);
-+	} else if (rmap_item->address & UNSTABLE_FLAG) {
-+		if (rmap_item->hash_round == uksm_hash_round) {
-+
-+			rb_erase(&rmap_item->node,
-+				 &rmap_item->tree_node->sub_root);
-+			if (RB_EMPTY_ROOT(&rmap_item->tree_node->sub_root)) {
-+				rb_erase(&rmap_item->tree_node->node,
-+					 &root_unstable_tree);
-+
-+				free_tree_node(rmap_item->tree_node);
-+			} else
-+				rmap_item->tree_node->count--;
-+		}
-+		uksm_pages_unshared--;
-+	}
-+
-+	rmap_item->address &= PAGE_MASK;
-+	rmap_item->hash_max = 0;
-+
-+out:
-+	cond_resched();		/* we're called from many long loops */
-+}
-+
-+static inline int slot_in_uksm(struct vma_slot *slot)
-+{
-+	return list_empty(&slot->slot_list);
-+}
-+
-+/*
-+ * Test if the mm is exiting
-+ */
-+static inline bool uksm_test_exit(struct mm_struct *mm)
-+{
-+	return atomic_read(&mm->mm_users) == 0;
-+}
-+
-+static inline unsigned long vma_pool_size(struct vma_slot *slot)
-+{
-+	return round_up(sizeof(struct rmap_list_entry) * slot->pages,
-+			PAGE_SIZE) >> PAGE_SHIFT;
-+}
-+
-+#define CAN_OVERFLOW_U64(x, delta) (U64_MAX - (x) < (delta))
-+
-+/* must be done with sem locked */
-+static int slot_pool_alloc(struct vma_slot *slot)
-+{
-+	unsigned long pool_size;
-+
-+	if (slot->rmap_list_pool)
-+		return 0;
-+
-+	pool_size = vma_pool_size(slot);
-+	slot->rmap_list_pool = kcalloc(pool_size, sizeof(struct page *),
-+				       GFP_KERNEL);
-+	if (!slot->rmap_list_pool)
-+		return -ENOMEM;
-+
-+	slot->pool_counts = kcalloc(pool_size, sizeof(unsigned int),
-+				    GFP_KERNEL);
-+	if (!slot->pool_counts) {
-+		kfree(slot->rmap_list_pool);
-+		return -ENOMEM;
-+	}
-+
-+	slot->pool_size = pool_size;
-+	BUG_ON(CAN_OVERFLOW_U64(uksm_pages_total, slot->pages));
-+	slot->flags |= UKSM_SLOT_IN_UKSM;
-+	uksm_pages_total += slot->pages;
-+
-+	return 0;
-+}
-+
-+/*
-+ * Called after vma is unlinked from its mm
-+ */
-+void uksm_remove_vma(struct vm_area_struct *vma)
-+{
-+	struct vma_slot *slot;
-+
-+	if (!vma->uksm_vma_slot)
-+		return;
-+
-+	spin_lock(&vma_slot_list_lock);
-+	slot = vma->uksm_vma_slot;
-+	if (!slot)
-+		goto out;
-+
-+	if (slot_in_uksm(slot)) {
-+		/**
-+		 * This slot has been added by ksmd, so move to the del list
-+		 * waiting ksmd to free it.
-+		 */
-+		list_add_tail(&slot->slot_list, &vma_slot_del);
-+	} else {
-+		/**
-+		 * It's still on new list. It's ok to free slot directly.
-+		 */
-+		list_del(&slot->slot_list);
-+		free_vma_slot(slot);
-+	}
-+out:
-+	vma->uksm_vma_slot = NULL;
-+	spin_unlock(&vma_slot_list_lock);
-+}
-+
-+/**
-+ * Need to do two things:
-+ * 1. check if slot was moved to del list
-+ * 2. make sure the mmap_sem is manipulated under valid vma.
-+ *
-+ * My concern here is that in some cases, this may make
-+ * vma_slot_list_lock() waiters to serialized further by some
-+ * sem->wait_lock, can this really be expensive?
-+ *
-+ *
-+ * @return
-+ * 0: if successfully locked mmap_sem
-+ * -ENOENT: this slot was moved to del list
-+ * -EBUSY: vma lock failed
-+ */
-+static int try_down_read_slot_mmap_sem(struct vma_slot *slot)
-+{
-+	struct vm_area_struct *vma;
-+	struct mm_struct *mm;
-+	struct rw_semaphore *sem;
-+
-+	spin_lock(&vma_slot_list_lock);
-+
-+	/* the slot_list was removed and inited from new list, when it enters
-+	 * uksm_list. If now it's not empty, then it must be moved to del list
-+	 */
-+	if (!slot_in_uksm(slot)) {
-+		spin_unlock(&vma_slot_list_lock);
-+		return -ENOENT;
-+	}
-+
-+	BUG_ON(slot->pages != vma_pages(slot->vma));
-+	/* Ok, vma still valid */
-+	vma = slot->vma;
-+	mm = vma->vm_mm;
-+	sem = &mm->mmap_lock;
-+
-+	if (uksm_test_exit(mm)) {
-+		spin_unlock(&vma_slot_list_lock);
-+		return -ENOENT;
-+	}
-+
-+	if (down_read_trylock(sem)) {
-+		spin_unlock(&vma_slot_list_lock);
-+		if (slot_pool_alloc(slot)) {
-+			uksm_remove_vma(vma);
-+			up_read(sem);
-+			return -ENOENT;
-+		}
-+		return 0;
-+	}
-+
-+	spin_unlock(&vma_slot_list_lock);
-+	return -EBUSY;
-+}
-+
-+static inline unsigned long
-+vma_page_address(struct page *page, struct vm_area_struct *vma)
-+{
-+	pgoff_t pgoff = page->index;
-+	unsigned long address;
-+
-+	address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
-+	if (unlikely(address < vma->vm_start || address >= vma->vm_end)) {
-+		/* page should be within @vma mapping range */
-+		return -EFAULT;
-+	}
-+	return address;
-+}
-+
-+
-+/* return 0 on success with the item's mmap_sem locked */
-+static inline int get_mergeable_page_lock_mmap(struct rmap_item *item)
-+{
-+	struct mm_struct *mm;
-+	struct vma_slot *slot = item->slot;
-+	int err = -EINVAL;
-+
-+	struct page *page;
-+
-+	/*
-+	 * try_down_read_slot_mmap_sem() returns non-zero if the slot
-+	 * has been removed by uksm_remove_vma().
-+	 */
-+	if (try_down_read_slot_mmap_sem(slot))
-+		return -EBUSY;
-+
-+	mm = slot->vma->vm_mm;
-+
-+	if (uksm_test_exit(mm))
-+		goto failout_up;
-+
-+	page = item->page;
-+	rcu_read_lock();
-+	if (!get_page_unless_zero(page)) {
-+		rcu_read_unlock();
-+		goto failout_up;
-+	}
-+
-+	/* No need to consider huge page here. */
-+	if (item->slot->vma->anon_vma != page_anon_vma(page) ||
-+	    vma_page_address(page, item->slot->vma) != get_rmap_addr(item)) {
-+		/*
-+		 * TODO:
-+		 * should we release this item becase of its stale page
-+		 * mapping?
-+		 */
-+		put_page(page);
-+		rcu_read_unlock();
-+		goto failout_up;
-+	}
-+	rcu_read_unlock();
-+	return 0;
-+
-+failout_up:
-+	mmap_read_unlock(mm);
-+	return err;
-+}
-+
-+/*
-+ * What kind of VMA is considered ?
-+ */
-+static inline int vma_can_enter(struct vm_area_struct *vma)
-+{
-+	return uksm_flags_can_scan(vma->vm_flags);
-+}
-+
-+/*
-+ * Called whenever a fresh new vma is created A new vma_slot.
-+ * is created and inserted into a global list Must be called.
-+ * after vma is inserted to its mm.
-+ */
-+void uksm_vma_add_new(struct vm_area_struct *vma)
-+{
-+	struct vma_slot *slot;
-+
-+	if (!vma_can_enter(vma)) {
-+		vma->uksm_vma_slot = NULL;
-+		return;
-+	}
-+
-+	slot = alloc_vma_slot();
-+	if (!slot) {
-+		vma->uksm_vma_slot = NULL;
-+		return;
-+	}
-+
-+	vma->uksm_vma_slot = slot;
-+	vma->vm_flags |= VM_MERGEABLE;
-+	slot->vma = vma;
-+	slot->mm = vma->vm_mm;
-+	slot->ctime_j = jiffies;
-+	slot->pages = vma_pages(vma);
-+	spin_lock(&vma_slot_list_lock);
-+	list_add_tail(&slot->slot_list, &vma_slot_new);
-+	spin_unlock(&vma_slot_list_lock);
-+}
-+
-+/*   32/3 < they < 32/2 */
-+#define shiftl	8
-+#define shiftr	12
-+
-+#define HASH_FROM_TO(from, to)			\
-+for (index = from; index < to; index++) {	\
-+	pos = random_nums[index];		\
-+	hash += key[pos];			\
-+	hash += (hash << shiftl);		\
-+	hash ^= (hash >> shiftr);		\
-+}
-+
-+
-+#define HASH_FROM_DOWN_TO(from, to)		\
-+for (index = from - 1; index >= to; index--) {	\
-+	hash ^= (hash >> shiftr);		\
-+	hash ^= (hash >> (shiftr*2));		\
-+	hash -= (hash << shiftl);		\
-+	hash += (hash << (shiftl*2));		\
-+	pos = random_nums[index];		\
-+	hash -= key[pos];			\
-+}
-+
-+/*
-+ * The main random sample hash function.
-+ */
-+static u32 random_sample_hash(void *addr, u32 hash_strength)
-+{
-+	u32 hash = 0xdeadbeef;
-+	int index, pos, loop = hash_strength;
-+	u32 *key = (u32 *)addr;
-+
-+	if (loop > HASH_STRENGTH_FULL)
-+		loop = HASH_STRENGTH_FULL;
-+
-+	HASH_FROM_TO(0, loop);
-+
-+	if (hash_strength > HASH_STRENGTH_FULL) {
-+		loop = hash_strength - HASH_STRENGTH_FULL;
-+		HASH_FROM_TO(0, loop);
-+	}
-+
-+	return hash;
-+}
-+
-+
-+/**
-+ * It's used when hash strength is adjusted
-+ *
-+ * @addr The page's virtual address
-+ * @from The original hash strength
-+ * @to   The hash strength changed to
-+ * @hash The hash value generated with "from" hash value
-+ *
-+ * return the hash value
-+ */
-+static u32 delta_hash(void *addr, int from, int to, u32 hash)
-+{
-+	u32 *key = (u32 *)addr;
-+	int index, pos; /* make sure they are int type */
-+
-+	if (to > from) {
-+		if (from >= HASH_STRENGTH_FULL) {
-+			from -= HASH_STRENGTH_FULL;
-+			to -= HASH_STRENGTH_FULL;
-+			HASH_FROM_TO(from, to);
-+		} else if (to <= HASH_STRENGTH_FULL) {
-+			HASH_FROM_TO(from, to);
-+		} else {
-+			HASH_FROM_TO(from, HASH_STRENGTH_FULL);
-+			HASH_FROM_TO(0, to - HASH_STRENGTH_FULL);
-+		}
-+	} else {
-+		if (from <= HASH_STRENGTH_FULL) {
-+			HASH_FROM_DOWN_TO(from, to);
-+		} else if (to >= HASH_STRENGTH_FULL) {
-+			from -= HASH_STRENGTH_FULL;
-+			to -= HASH_STRENGTH_FULL;
-+			HASH_FROM_DOWN_TO(from, to);
-+		} else {
-+			HASH_FROM_DOWN_TO(from - HASH_STRENGTH_FULL, 0);
-+			HASH_FROM_DOWN_TO(HASH_STRENGTH_FULL, to);
-+		}
-+	}
-+
-+	return hash;
-+}
-+
-+/**
-+ *
-+ * Called when: rshash_pos or rshash_neg is about to overflow or a scan round
-+ * has finished.
-+ *
-+ * return 0 if no page has been scanned since last call, 1 otherwise.
-+ */
-+static inline int encode_benefit(void)
-+{
-+	u64 scanned_delta, pos_delta, neg_delta;
-+	unsigned long base = benefit.base;
-+
-+	scanned_delta = uksm_pages_scanned - uksm_pages_scanned_last;
-+
-+	if (!scanned_delta)
-+		return 0;
-+
-+	scanned_delta >>= base;
-+	pos_delta = rshash_pos >> base;
-+	neg_delta = rshash_neg >> base;
-+
-+	if (CAN_OVERFLOW_U64(benefit.pos, pos_delta) ||
-+	    CAN_OVERFLOW_U64(benefit.neg, neg_delta) ||
-+	    CAN_OVERFLOW_U64(benefit.scanned, scanned_delta)) {
-+		benefit.scanned >>= 1;
-+		benefit.neg >>= 1;
-+		benefit.pos >>= 1;
-+		benefit.base++;
-+		scanned_delta >>= 1;
-+		pos_delta >>= 1;
-+		neg_delta >>= 1;
-+	}
-+
-+	benefit.pos += pos_delta;
-+	benefit.neg += neg_delta;
-+	benefit.scanned += scanned_delta;
-+
-+	BUG_ON(!benefit.scanned);
-+
-+	rshash_pos = rshash_neg = 0;
-+	uksm_pages_scanned_last = uksm_pages_scanned;
-+
-+	return 1;
-+}
-+
-+static inline void reset_benefit(void)
-+{
-+	benefit.pos = 0;
-+	benefit.neg = 0;
-+	benefit.base = 0;
-+	benefit.scanned = 0;
-+}
-+
-+static inline void inc_rshash_pos(unsigned long delta)
-+{
-+	if (CAN_OVERFLOW_U64(rshash_pos, delta))
-+		encode_benefit();
-+
-+	rshash_pos += delta;
-+}
-+
-+static inline void inc_rshash_neg(unsigned long delta)
-+{
-+	if (CAN_OVERFLOW_U64(rshash_neg, delta))
-+		encode_benefit();
-+
-+	rshash_neg += delta;
-+}
-+
-+
-+static inline u32 page_hash(struct page *page, unsigned long hash_strength,
-+			    int cost_accounting)
-+{
-+	u32 val;
-+	unsigned long delta;
-+
-+	void *addr = kmap_atomic(page);
-+
-+	val = random_sample_hash(addr, hash_strength);
-+	kunmap_atomic(addr);
-+
-+	if (cost_accounting) {
-+		if (hash_strength < HASH_STRENGTH_FULL)
-+			delta = HASH_STRENGTH_FULL - hash_strength;
-+		else
-+			delta = 0;
-+
-+		inc_rshash_pos(delta);
-+	}
-+
-+	return val;
-+}
-+
-+static int memcmp_pages_with_cost(struct page *page1, struct page *page2,
-+			int cost_accounting)
-+{
-+	char *addr1, *addr2;
-+	int ret;
-+
-+	addr1 = kmap_atomic(page1);
-+	addr2 = kmap_atomic(page2);
-+	ret = memcmp(addr1, addr2, PAGE_SIZE);
-+	kunmap_atomic(addr2);
-+	kunmap_atomic(addr1);
-+
-+	if (cost_accounting)
-+		inc_rshash_neg(memcmp_cost);
-+
-+	return ret;
-+}
-+
-+static inline int pages_identical_with_cost(struct page *page1, struct page *page2)
-+{
-+	return !memcmp_pages_with_cost(page1, page2, 0);
-+}
-+
-+static inline int is_page_full_zero(struct page *page)
-+{
-+	char *addr;
-+	int ret;
-+
-+	addr = kmap_atomic(page);
-+	ret = is_full_zero(addr, PAGE_SIZE);
-+	kunmap_atomic(addr);
-+
-+	return ret;
-+}
-+
-+static int write_protect_page(struct vm_area_struct *vma, struct page *page,
-+			      pte_t *orig_pte, pte_t *old_pte)
-+{
-+	struct mm_struct *mm = vma->vm_mm;
-+	struct page_vma_mapped_walk pvmw = {
-+		.page = page,
-+		.vma = vma,
-+	};
-+       struct mmu_notifier_range range;
-+	int swapped;
-+	int err = -EFAULT;
-+
-+	pvmw.address = page_address_in_vma(page, vma);
-+	if (pvmw.address == -EFAULT)
-+		goto out;
-+
-+	BUG_ON(PageTransCompound(page));
-+
-+        mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, mm, pvmw.address,
-+                                pvmw.address + PAGE_SIZE);
-+	mmu_notifier_invalidate_range_start(&range);
-+
-+	if (!page_vma_mapped_walk(&pvmw))
-+		goto out_mn;
-+	if (WARN_ONCE(!pvmw.pte, "Unexpected PMD mapping?"))
-+		goto out_unlock;
-+
-+	if (old_pte)
-+		*old_pte = *pvmw.pte;
-+
-+	if (pte_write(*pvmw.pte) || pte_dirty(*pvmw.pte) ||
-+	    (pte_protnone(*pvmw.pte) && pte_savedwrite(*pvmw.pte)) || mm_tlb_flush_pending(mm)) {
-+		pte_t entry;
-+
-+		swapped = PageSwapCache(page);
-+		flush_cache_page(vma, pvmw.address, page_to_pfn(page));
-+		/*
-+		 * Ok this is tricky, when get_user_pages_fast() run it doesn't
-+		 * take any lock, therefore the check that we are going to make
-+		 * with the pagecount against the mapcount is racey and
-+		 * O_DIRECT can happen right after the check.
-+		 * So we clear the pte and flush the tlb before the check
-+		 * this assure us that no O_DIRECT can happen after the check
-+		 * or in the middle of the check.
-+		 */
-+		entry = ptep_clear_flush_notify(vma, pvmw.address, pvmw.pte);
-+		/*
-+		 * Check that no O_DIRECT or similar I/O is in progress on the
-+		 * page
-+		 */
-+		if (page_mapcount(page) + 1 + swapped != page_count(page)) {
-+			set_pte_at(mm, pvmw.address, pvmw.pte, entry);
-+			goto out_unlock;
-+		}
-+		if (pte_dirty(entry))
-+			set_page_dirty(page);
-+
-+		if (pte_protnone(entry))
-+			entry = pte_mkclean(pte_clear_savedwrite(entry));
-+		else
-+			entry = pte_mkclean(pte_wrprotect(entry));
-+
-+		set_pte_at_notify(mm, pvmw.address, pvmw.pte, entry);
-+	}
-+	*orig_pte = *pvmw.pte;
-+	err = 0;
-+
-+out_unlock:
-+	page_vma_mapped_walk_done(&pvmw);
-+out_mn:
-+	mmu_notifier_invalidate_range_end(&range);
-+out:
-+	return err;
-+}
-+
-+#define MERGE_ERR_PGERR		1 /* the page is invalid cannot continue */
-+#define MERGE_ERR_COLLI		2 /* there is a collision */
-+#define MERGE_ERR_COLLI_MAX	3 /* collision at the max hash strength */
-+#define MERGE_ERR_CHANGED	4 /* the page has changed since last hash */
-+
-+
-+/**
-+ * replace_page - replace page in vma by new ksm page
-+ * @vma:      vma that holds the pte pointing to page
-+ * @page:     the page we are replacing by kpage
-+ * @kpage:    the ksm page we replace page by
-+ * @orig_pte: the original value of the pte
-+ *
-+ * Returns 0 on success, MERGE_ERR_PGERR on failure.
-+ */
-+static int replace_page(struct vm_area_struct *vma, struct page *page,
-+			struct page *kpage, pte_t orig_pte)
-+{
-+	struct mm_struct *mm = vma->vm_mm;
-+       struct mmu_notifier_range range;
-+	pgd_t *pgd;
-+	p4d_t *p4d;
-+	pud_t *pud;
-+	pmd_t *pmd;
-+	pte_t *ptep;
-+	spinlock_t *ptl;
-+	pte_t entry;
-+
-+	unsigned long addr;
-+	int err = MERGE_ERR_PGERR;
-+
-+	addr = page_address_in_vma(page, vma);
-+	if (addr == -EFAULT)
-+		goto out;
-+
-+	pgd = pgd_offset(mm, addr);
-+	if (!pgd_present(*pgd))
-+		goto out;
-+
-+	p4d = p4d_offset(pgd, addr);
-+	pud = pud_offset(p4d, addr);
-+	if (!pud_present(*pud))
-+		goto out;
-+
-+	pmd = pmd_offset(pud, addr);
-+	BUG_ON(pmd_trans_huge(*pmd));
-+	if (!pmd_present(*pmd))
-+		goto out;
-+
-+        mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, mm, addr,
-+                                addr + PAGE_SIZE);
-+	mmu_notifier_invalidate_range_start(&range);
-+
-+	ptep = pte_offset_map_lock(mm, pmd, addr, &ptl);
-+	if (!pte_same(*ptep, orig_pte)) {
-+		pte_unmap_unlock(ptep, ptl);
-+		goto out_mn;
-+	}
-+
-+	flush_cache_page(vma, addr, pte_pfn(*ptep));
-+	ptep_clear_flush_notify(vma, addr, ptep);
-+	entry = mk_pte(kpage, vma->vm_page_prot);
-+
-+	/* special treatment is needed for zero_page */
-+	if ((page_to_pfn(kpage) == uksm_zero_pfn) ||
-+				(page_to_pfn(kpage) == zero_pfn)) {
-+		entry = pte_mkspecial(entry);
-+		dec_mm_counter(mm, MM_ANONPAGES);
-+		inc_zone_page_state(page, NR_UKSM_ZERO_PAGES);
-+	} else {
-+		get_page(kpage);
-+		page_add_anon_rmap(kpage, vma, addr, false);
-+	}
-+
-+	set_pte_at_notify(mm, addr, ptep, entry);
-+
-+	page_remove_rmap(page, false);
-+	if (!page_mapped(page))
-+		try_to_free_swap(page);
-+	put_page(page);
-+
-+	pte_unmap_unlock(ptep, ptl);
-+	err = 0;
-+out_mn:
-+	mmu_notifier_invalidate_range_end(&range);
-+out:
-+	return err;
-+}
-+
-+
-+/**
-+ *  Fully hash a page with HASH_STRENGTH_MAX return a non-zero hash value. The
-+ *  zero hash value at HASH_STRENGTH_MAX is used to indicated that its
-+ *  hash_max member has not been calculated.
-+ *
-+ * @page The page needs to be hashed
-+ * @hash_old The hash value calculated with current hash strength
-+ *
-+ * return the new hash value calculated at HASH_STRENGTH_MAX
-+ */
-+static inline u32 page_hash_max(struct page *page, u32 hash_old)
-+{
-+	u32 hash_max = 0;
-+	void *addr;
-+
-+	addr = kmap_atomic(page);
-+	hash_max = delta_hash(addr, hash_strength,
-+			      HASH_STRENGTH_MAX, hash_old);
-+
-+	kunmap_atomic(addr);
-+
-+	if (!hash_max)
-+		hash_max = 1;
-+
-+	inc_rshash_neg(HASH_STRENGTH_MAX - hash_strength);
-+	return hash_max;
-+}
-+
-+/*
-+ * We compare the hash again, to ensure that it is really a hash collision
-+ * instead of being caused by page write.
-+ */
-+static inline int check_collision(struct rmap_item *rmap_item,
-+				  u32 hash)
-+{
-+	int err;
-+	struct page *page = rmap_item->page;
-+
-+	/* if this rmap_item has already been hash_maxed, then the collision
-+	 * must appears in the second-level rbtree search. In this case we check
-+	 * if its hash_max value has been changed. Otherwise, the collision
-+	 * happens in the first-level rbtree search, so we check against it's
-+	 * current hash value.
-+	 */
-+	if (rmap_item->hash_max) {
-+		inc_rshash_neg(memcmp_cost);
-+		inc_rshash_neg(HASH_STRENGTH_MAX - hash_strength);
-+
-+		if (rmap_item->hash_max == page_hash_max(page, hash))
-+			err = MERGE_ERR_COLLI;
-+		else
-+			err = MERGE_ERR_CHANGED;
-+	} else {
-+		inc_rshash_neg(memcmp_cost + hash_strength);
-+
-+		if (page_hash(page, hash_strength, 0) == hash)
-+			err = MERGE_ERR_COLLI;
-+		else
-+			err = MERGE_ERR_CHANGED;
-+	}
-+
-+	return err;
-+}
-+
-+/**
-+ * Try to merge a rmap_item.page with a kpage in stable node. kpage must
-+ * already be a ksm page.
-+ *
-+ * @return 0 if the pages were merged, -EFAULT otherwise.
-+ */
-+static int try_to_merge_with_uksm_page(struct rmap_item *rmap_item,
-+				      struct page *kpage, u32 hash)
-+{
-+	struct vm_area_struct *vma = rmap_item->slot->vma;
-+	struct mm_struct *mm = vma->vm_mm;
-+	pte_t orig_pte = __pte(0);
-+	int err = MERGE_ERR_PGERR;
-+	struct page *page;
-+
-+	if (uksm_test_exit(mm))
-+		goto out;
-+
-+	page = rmap_item->page;
-+
-+	if (page == kpage) { /* ksm page forked */
-+		err = 0;
-+		goto out;
-+	}
-+
-+	/*
-+	 * We need the page lock to read a stable PageSwapCache in
-+	 * write_protect_page().  We use trylock_page() instead of
-+	 * lock_page() because we don't want to wait here - we
-+	 * prefer to continue scanning and merging different pages,
-+	 * then come back to this page when it is unlocked.
-+	 */
-+	if (!trylock_page(page))
-+		goto out;
-+
-+	if (!PageAnon(page) || !PageKsm(kpage))
-+		goto out_unlock;
-+
-+	if (PageTransCompound(page)) {
-+		err = split_huge_page(page);
-+		if (err)
-+			goto out_unlock;
-+	}
-+
-+	/*
-+	 * If this anonymous page is mapped only here, its pte may need
-+	 * to be write-protected.  If it's mapped elsewhere, all of its
-+	 * ptes are necessarily already write-protected.  But in either
-+	 * case, we need to lock and check page_count is not raised.
-+	 */
-+	if (write_protect_page(vma, page, &orig_pte, NULL) == 0) {
-+		if (pages_identical_with_cost(page, kpage))
-+			err = replace_page(vma, page, kpage, orig_pte);
-+		else
-+			err = check_collision(rmap_item, hash);
-+	}
-+
-+	if ((vma->vm_flags & VM_LOCKED) && kpage && !err) {
-+		munlock_vma_page(page);
-+		if (!PageMlocked(kpage)) {
-+			unlock_page(page);
-+			lock_page(kpage);
-+			mlock_vma_page(kpage);
-+			page = kpage;		/* for final unlock */
-+		}
-+	}
-+
-+out_unlock:
-+	unlock_page(page);
-+out:
-+	return err;
-+}
-+
-+
-+
-+/**
-+ * If two pages fail to merge in try_to_merge_two_pages, then we have a chance
-+ * to restore a page mapping that has been changed in try_to_merge_two_pages.
-+ *
-+ * @return 0 on success.
-+ */
-+static int restore_uksm_page_pte(struct vm_area_struct *vma, unsigned long addr,
-+			     pte_t orig_pte, pte_t wprt_pte)
-+{
-+	struct mm_struct *mm = vma->vm_mm;
-+	pgd_t *pgd;
-+	p4d_t *p4d;
-+	pud_t *pud;
-+	pmd_t *pmd;
-+	pte_t *ptep;
-+	spinlock_t *ptl;
-+
-+	int err = -EFAULT;
-+
-+	pgd = pgd_offset(mm, addr);
-+	if (!pgd_present(*pgd))
-+		goto out;
-+
-+	p4d = p4d_offset(pgd, addr);
-+	pud = pud_offset(p4d, addr);
-+	if (!pud_present(*pud))
-+		goto out;
-+
-+	pmd = pmd_offset(pud, addr);
-+	if (!pmd_present(*pmd))
-+		goto out;
-+
-+	ptep = pte_offset_map_lock(mm, pmd, addr, &ptl);
-+	if (!pte_same(*ptep, wprt_pte)) {
-+		/* already copied, let it be */
-+		pte_unmap_unlock(ptep, ptl);
-+		goto out;
-+	}
-+
-+	/*
-+	 * Good boy, still here. When we still get the ksm page, it does not
-+	 * return to the free page pool, there is no way that a pte was changed
-+	 * to other page and gets back to this page. And remind that ksm page
-+	 * do not reuse in do_wp_page(). So it's safe to restore the original
-+	 * pte.
-+	 */
-+	flush_cache_page(vma, addr, pte_pfn(*ptep));
-+	ptep_clear_flush_notify(vma, addr, ptep);
-+	set_pte_at_notify(mm, addr, ptep, orig_pte);
-+
-+	pte_unmap_unlock(ptep, ptl);
-+	err = 0;
-+out:
-+	return err;
-+}
-+
-+/**
-+ * try_to_merge_two_pages() - take two identical pages and prepare
-+ * them to be merged into one page(rmap_item->page)
-+ *
-+ * @return 0 if we successfully merged two identical pages into
-+ *         one ksm page. MERGE_ERR_COLLI if it's only a hash collision
-+ *         search in rbtree. MERGE_ERR_CHANGED if rmap_item has been
-+ *         changed since it's hashed. MERGE_ERR_PGERR otherwise.
-+ *
-+ */
-+static int try_to_merge_two_pages(struct rmap_item *rmap_item,
-+				  struct rmap_item *tree_rmap_item,
-+				  u32 hash)
-+{
-+	pte_t orig_pte1 = __pte(0), orig_pte2 = __pte(0);
-+	pte_t wprt_pte1 = __pte(0), wprt_pte2 = __pte(0);
-+	struct vm_area_struct *vma1 = rmap_item->slot->vma;
-+	struct vm_area_struct *vma2 = tree_rmap_item->slot->vma;
-+	struct page *page = rmap_item->page;
-+	struct page *tree_page = tree_rmap_item->page;
-+	int err = MERGE_ERR_PGERR;
-+	struct address_space *saved_mapping;
-+
-+
-+	if (rmap_item->page == tree_rmap_item->page)
-+		goto out;
-+
-+	if (!trylock_page(page))
-+		goto out;
-+
-+	if (!PageAnon(page))
-+		goto out_unlock;
-+
-+	if (PageTransCompound(page)) {
-+		err = split_huge_page(page);
-+		if (err)
-+			goto out_unlock;
-+	}
-+
-+	if (write_protect_page(vma1, page, &wprt_pte1, &orig_pte1) != 0) {
-+		unlock_page(page);
-+		goto out;
-+	}
-+
-+	/*
-+	 * While we hold page lock, upgrade page from
-+	 * PageAnon+anon_vma to PageKsm+NULL stable_node:
-+	 * stable_tree_insert() will update stable_node.
-+	 */
-+	saved_mapping = page->mapping;
-+	set_page_stable_node(page, NULL);
-+	mark_page_accessed(page);
-+	if (!PageDirty(page))
-+		SetPageDirty(page);
-+
-+	unlock_page(page);
-+
-+	if (!trylock_page(tree_page))
-+		goto restore_out;
-+
-+	if (!PageAnon(tree_page)) {
-+		unlock_page(tree_page);
-+		goto restore_out;
-+	}
-+
-+	if (PageTransCompound(tree_page)) {
-+		err = split_huge_page(tree_page);
-+		if (err) {
-+			unlock_page(tree_page);
-+			goto restore_out;
-+		}
-+	}
-+
-+	if (write_protect_page(vma2, tree_page, &wprt_pte2, &orig_pte2) != 0) {
-+		unlock_page(tree_page);
-+		goto restore_out;
-+	}
-+
-+	if (pages_identical_with_cost(page, tree_page)) {
-+		err = replace_page(vma2, tree_page, page, wprt_pte2);
-+		if (err) {
-+			unlock_page(tree_page);
-+			goto restore_out;
-+		}
-+
-+		if ((vma2->vm_flags & VM_LOCKED)) {
-+			munlock_vma_page(tree_page);
-+			if (!PageMlocked(page)) {
-+				unlock_page(tree_page);
-+				lock_page(page);
-+				mlock_vma_page(page);
-+				tree_page = page; /* for final unlock */
-+			}
-+		}
-+
-+		unlock_page(tree_page);
-+
-+		goto out; /* success */
-+
-+	} else {
-+		if (tree_rmap_item->hash_max &&
-+		    tree_rmap_item->hash_max == rmap_item->hash_max) {
-+			err = MERGE_ERR_COLLI_MAX;
-+		} else if (page_hash(page, hash_strength, 0) ==
-+		    page_hash(tree_page, hash_strength, 0)) {
-+			inc_rshash_neg(memcmp_cost + hash_strength * 2);
-+			err = MERGE_ERR_COLLI;
-+		} else {
-+			err = MERGE_ERR_CHANGED;
-+		}
-+
-+		unlock_page(tree_page);
-+	}
-+
-+restore_out:
-+	lock_page(page);
-+	if (!restore_uksm_page_pte(vma1, get_rmap_addr(rmap_item),
-+				  orig_pte1, wprt_pte1))
-+		page->mapping = saved_mapping;
-+
-+out_unlock:
-+	unlock_page(page);
-+out:
-+	return err;
-+}
-+
-+static inline int hash_cmp(u32 new_val, u32 node_val)
-+{
-+	if (new_val > node_val)
-+		return 1;
-+	else if (new_val < node_val)
-+		return -1;
-+	else
-+		return 0;
-+}
-+
-+static inline u32 rmap_item_hash_max(struct rmap_item *item, u32 hash)
-+{
-+	u32 hash_max = item->hash_max;
-+
-+	if (!hash_max) {
-+		hash_max = page_hash_max(item->page, hash);
-+
-+		item->hash_max = hash_max;
-+	}
-+
-+	return hash_max;
-+}
-+
-+
-+
-+/**
-+ * stable_tree_search() - search the stable tree for a page
-+ *
-+ * @item:	the rmap_item we are comparing with
-+ * @hash:	the hash value of this item->page already calculated
-+ *
-+ * @return	the page we have found, NULL otherwise. The page returned has
-+ *			been gotten.
-+ */
-+static struct page *stable_tree_search(struct rmap_item *item, u32 hash)
-+{
-+	struct rb_node *node = root_stable_treep->rb_node;
-+	struct tree_node *tree_node;
-+	unsigned long hash_max;
-+	struct page *page = item->page;
-+	struct stable_node *stable_node;
-+
-+	stable_node = page_stable_node(page);
-+	if (stable_node) {
-+		/* ksm page forked, that is
-+		 * if (PageKsm(page) && !in_stable_tree(rmap_item))
-+		 * it's actually gotten once outside.
-+		 */
-+		get_page(page);
-+		return page;
-+	}
-+
-+	while (node) {
-+		int cmp;
-+
-+		tree_node = rb_entry(node, struct tree_node, node);
-+
-+		cmp = hash_cmp(hash, tree_node->hash);
-+
-+		if (cmp < 0)
-+			node = node->rb_left;
-+		else if (cmp > 0)
-+			node = node->rb_right;
-+		else
-+			break;
-+	}
-+
-+	if (!node)
-+		return NULL;
-+
-+	if (tree_node->count == 1) {
-+		stable_node = rb_entry(tree_node->sub_root.rb_node,
-+				       struct stable_node, node);
-+		BUG_ON(!stable_node);
-+
-+		goto get_page_out;
-+	}
-+
-+	/*
-+	 * ok, we have to search the second
-+	 * level subtree, hash the page to a
-+	 * full strength.
-+	 */
-+	node = tree_node->sub_root.rb_node;
-+	BUG_ON(!node);
-+	hash_max = rmap_item_hash_max(item, hash);
-+
-+	while (node) {
-+		int cmp;
-+
-+		stable_node = rb_entry(node, struct stable_node, node);
-+
-+		cmp = hash_cmp(hash_max, stable_node->hash_max);
-+
-+		if (cmp < 0)
-+			node = node->rb_left;
-+		else if (cmp > 0)
-+			node = node->rb_right;
-+		else
-+			goto get_page_out;
-+	}
-+
-+	return NULL;
-+
-+get_page_out:
-+	page = get_uksm_page(stable_node, 1, 1);
-+	return page;
-+}
-+
-+static int try_merge_rmap_item(struct rmap_item *item,
-+			       struct page *kpage,
-+			       struct page *tree_page)
-+{
-+	struct vm_area_struct *vma = item->slot->vma;
-+	struct page_vma_mapped_walk pvmw = {
-+		.page = kpage,
-+		.vma = vma,
-+	};
-+
-+	pvmw.address = get_rmap_addr(item);
-+	if (!page_vma_mapped_walk(&pvmw))
-+		return 0;
-+
-+	if (pte_write(*pvmw.pte)) {
-+		/* has changed, abort! */
-+		page_vma_mapped_walk_done(&pvmw);
-+		return 0;
-+	}
-+
-+	get_page(tree_page);
-+	page_add_anon_rmap(tree_page, vma, pvmw.address, false);
-+
-+	flush_cache_page(vma, pvmw.address, page_to_pfn(kpage));
-+	ptep_clear_flush_notify(vma, pvmw.address, pvmw.pte);
-+	set_pte_at_notify(vma->vm_mm, pvmw.address, pvmw.pte,
-+			  mk_pte(tree_page, vma->vm_page_prot));
-+
-+	page_remove_rmap(kpage, false);
-+	put_page(kpage);
-+
-+	page_vma_mapped_walk_done(&pvmw);
-+
-+	return 1;
-+}
-+
-+/**
-+ * try_to_merge_with_stable_page() - when two rmap_items need to be inserted
-+ * into stable tree, the page was found to be identical to a stable ksm page,
-+ * this is the last chance we can merge them into one.
-+ *
-+ * @item1:	the rmap_item holding the page which we wanted to insert
-+ *		into stable tree.
-+ * @item2:	the other rmap_item we found when unstable tree search
-+ * @oldpage:	the page currently mapped by the two rmap_items
-+ * @tree_page:	the page we found identical in stable tree node
-+ * @success1:	return if item1 is successfully merged
-+ * @success2:	return if item2 is successfully merged
-+ */
-+static void try_merge_with_stable(struct rmap_item *item1,
-+				  struct rmap_item *item2,
-+				  struct page **kpage,
-+				  struct page *tree_page,
-+				  int *success1, int *success2)
-+{
-+	struct vm_area_struct *vma1 = item1->slot->vma;
-+	struct vm_area_struct *vma2 = item2->slot->vma;
-+	*success1 = 0;
-+	*success2 = 0;
-+
-+	if (unlikely(*kpage == tree_page)) {
-+		/* I don't think this can really happen */
-+		pr_warn("UKSM: unexpected condition detected in "
-+			"%s -- *kpage == tree_page !\n", __func__);
-+		*success1 = 1;
-+		*success2 = 1;
-+		return;
-+	}
-+
-+	if (!PageAnon(*kpage) || !PageKsm(*kpage))
-+		goto failed;
-+
-+	if (!trylock_page(tree_page))
-+		goto failed;
-+
-+	/* If the oldpage is still ksm and still pointed
-+	 * to in the right place, and still write protected,
-+	 * we are confident it's not changed, no need to
-+	 * memcmp anymore.
-+	 * be ware, we cannot take nested pte locks,
-+	 * deadlock risk.
-+	 */
-+	if (!try_merge_rmap_item(item1, *kpage, tree_page))
-+		goto unlock_failed;
-+
-+	/* ok, then vma2, remind that pte1 already set */
-+	if (!try_merge_rmap_item(item2, *kpage, tree_page))
-+		goto success_1;
-+
-+	*success2 = 1;
-+success_1:
-+	*success1 = 1;
-+
-+
-+	if ((*success1 && vma1->vm_flags & VM_LOCKED) ||
-+	    (*success2 && vma2->vm_flags & VM_LOCKED)) {
-+		munlock_vma_page(*kpage);
-+		if (!PageMlocked(tree_page))
-+			mlock_vma_page(tree_page);
-+	}
-+
-+	/*
-+	 * We do not need oldpage any more in the caller, so can break the lock
-+	 * now.
-+	 */
-+	unlock_page(*kpage);
-+	*kpage = tree_page; /* Get unlocked outside. */
-+	return;
-+
-+unlock_failed:
-+	unlock_page(tree_page);
-+failed:
-+	return;
-+}
-+
-+static inline void stable_node_hash_max(struct stable_node *node,
-+					 struct page *page, u32 hash)
-+{
-+	u32 hash_max = node->hash_max;
-+
-+	if (!hash_max) {
-+		hash_max = page_hash_max(page, hash);
-+		node->hash_max = hash_max;
-+	}
-+}
-+
-+static inline
-+struct stable_node *new_stable_node(struct tree_node *tree_node,
-+				    struct page *kpage, u32 hash_max)
-+{
-+	struct stable_node *new_stable_node;
-+
-+	new_stable_node = alloc_stable_node();
-+	if (!new_stable_node)
-+		return NULL;
-+
-+	new_stable_node->kpfn = page_to_pfn(kpage);
-+	new_stable_node->hash_max = hash_max;
-+	new_stable_node->tree_node = tree_node;
-+	set_page_stable_node(kpage, new_stable_node);
-+
-+	return new_stable_node;
-+}
-+
-+static inline
-+struct stable_node *first_level_insert(struct tree_node *tree_node,
-+				       struct rmap_item *rmap_item,
-+				       struct rmap_item *tree_rmap_item,
-+				       struct page **kpage, u32 hash,
-+				       int *success1, int *success2)
-+{
-+	int cmp;
-+	struct page *tree_page;
-+	u32 hash_max = 0;
-+	struct stable_node *stable_node, *new_snode;
-+	struct rb_node *parent = NULL, **new;
-+
-+	/* this tree node contains no sub-tree yet */
-+	stable_node = rb_entry(tree_node->sub_root.rb_node,
-+			       struct stable_node, node);
-+
-+	tree_page = get_uksm_page(stable_node, 1, 0);
-+	if (tree_page) {
-+		cmp = memcmp_pages_with_cost(*kpage, tree_page, 1);
-+		if (!cmp) {
-+			try_merge_with_stable(rmap_item, tree_rmap_item, kpage,
-+					      tree_page, success1, success2);
-+			put_page(tree_page);
-+			if (!*success1 && !*success2)
-+				goto failed;
-+
-+			return stable_node;
-+
-+		} else {
-+			/*
-+			 * collision in first level try to create a subtree.
-+			 * A new node need to be created.
-+			 */
-+			put_page(tree_page);
-+
-+			stable_node_hash_max(stable_node, tree_page,
-+					     tree_node->hash);
-+			hash_max = rmap_item_hash_max(rmap_item, hash);
-+			cmp = hash_cmp(hash_max, stable_node->hash_max);
-+
-+			parent = &stable_node->node;
-+			if (cmp < 0)
-+				new = &parent->rb_left;
-+			else if (cmp > 0)
-+				new = &parent->rb_right;
-+			else
-+				goto failed;
-+		}
-+
-+	} else {
-+		/* the only stable_node deleted, we reuse its tree_node.
-+		 */
-+		parent = NULL;
-+		new = &tree_node->sub_root.rb_node;
-+	}
-+
-+	new_snode = new_stable_node(tree_node, *kpage, hash_max);
-+	if (!new_snode)
-+		goto failed;
-+
-+	rb_link_node(&new_snode->node, parent, new);
-+	rb_insert_color(&new_snode->node, &tree_node->sub_root);
-+	tree_node->count++;
-+	*success1 = *success2 = 1;
-+
-+	return new_snode;
-+
-+failed:
-+	return NULL;
-+}
-+
-+static inline
-+struct stable_node *stable_subtree_insert(struct tree_node *tree_node,
-+					  struct rmap_item *rmap_item,
-+					  struct rmap_item *tree_rmap_item,
-+					  struct page **kpage, u32 hash,
-+					  int *success1, int *success2)
-+{
-+	struct page *tree_page;
-+	u32 hash_max;
-+	struct stable_node *stable_node, *new_snode;
-+	struct rb_node *parent, **new;
-+
-+research:
-+	parent = NULL;
-+	new = &tree_node->sub_root.rb_node;
-+	BUG_ON(!*new);
-+	hash_max = rmap_item_hash_max(rmap_item, hash);
-+	while (*new) {
-+		int cmp;
-+
-+		stable_node = rb_entry(*new, struct stable_node, node);
-+
-+		cmp = hash_cmp(hash_max, stable_node->hash_max);
-+
-+		if (cmp < 0) {
-+			parent = *new;
-+			new = &parent->rb_left;
-+		} else if (cmp > 0) {
-+			parent = *new;
-+			new = &parent->rb_right;
-+		} else {
-+			tree_page = get_uksm_page(stable_node, 1, 0);
-+			if (tree_page) {
-+				cmp = memcmp_pages_with_cost(*kpage, tree_page, 1);
-+				if (!cmp) {
-+					try_merge_with_stable(rmap_item,
-+						tree_rmap_item, kpage,
-+						tree_page, success1, success2);
-+
-+					put_page(tree_page);
-+					if (!*success1 && !*success2)
-+						goto failed;
-+					/*
-+					 * successfully merged with a stable
-+					 * node
-+					 */
-+					return stable_node;
-+				} else {
-+					put_page(tree_page);
-+					goto failed;
-+				}
-+			} else {
-+				/*
-+				 * stable node may be deleted,
-+				 * and subtree maybe
-+				 * restructed, cannot
-+				 * continue, research it.
-+				 */
-+				if (tree_node->count) {
-+					goto research;
-+				} else {
-+					/* reuse the tree node*/
-+					parent = NULL;
-+					new = &tree_node->sub_root.rb_node;
-+				}
-+			}
-+		}
-+	}
-+
-+	new_snode = new_stable_node(tree_node, *kpage, hash_max);
-+	if (!new_snode)
-+		goto failed;
-+
-+	rb_link_node(&new_snode->node, parent, new);
-+	rb_insert_color(&new_snode->node, &tree_node->sub_root);
-+	tree_node->count++;
-+	*success1 = *success2 = 1;
-+
-+	return new_snode;
-+
-+failed:
-+	return NULL;
-+}
-+
-+
-+/**
-+ * stable_tree_insert() - try to insert a merged page in unstable tree to
-+ * the stable tree
-+ *
-+ * @kpage:		the page need to be inserted
-+ * @hash:		the current hash of this page
-+ * @rmap_item:		the rmap_item being scanned
-+ * @tree_rmap_item:	the rmap_item found on unstable tree
-+ * @success1:		return if rmap_item is merged
-+ * @success2:		return if tree_rmap_item is merged
-+ *
-+ * @return		the stable_node on stable tree if at least one
-+ *			rmap_item is inserted into stable tree, NULL
-+ *			otherwise.
-+ */
-+static struct stable_node *
-+stable_tree_insert(struct page **kpage, u32 hash,
-+		   struct rmap_item *rmap_item,
-+		   struct rmap_item *tree_rmap_item,
-+		   int *success1, int *success2)
-+{
-+	struct rb_node **new = &root_stable_treep->rb_node;
-+	struct rb_node *parent = NULL;
-+	struct stable_node *stable_node;
-+	struct tree_node *tree_node;
-+	u32 hash_max = 0;
-+
-+	*success1 = *success2 = 0;
-+
-+	while (*new) {
-+		int cmp;
-+
-+		tree_node = rb_entry(*new, struct tree_node, node);
-+
-+		cmp = hash_cmp(hash, tree_node->hash);
-+
-+		if (cmp < 0) {
-+			parent = *new;
-+			new = &parent->rb_left;
-+		} else if (cmp > 0) {
-+			parent = *new;
-+			new = &parent->rb_right;
-+		} else
-+			break;
-+	}
-+
-+	if (*new) {
-+		if (tree_node->count == 1) {
-+			stable_node = first_level_insert(tree_node, rmap_item,
-+						tree_rmap_item, kpage,
-+						hash, success1, success2);
-+		} else {
-+			stable_node = stable_subtree_insert(tree_node,
-+					rmap_item, tree_rmap_item, kpage,
-+					hash, success1, success2);
-+		}
-+	} else {
-+
-+		/* no tree node found */
-+		tree_node = alloc_tree_node(stable_tree_node_listp);
-+		if (!tree_node) {
-+			stable_node = NULL;
-+			goto out;
-+		}
-+
-+		stable_node = new_stable_node(tree_node, *kpage, hash_max);
-+		if (!stable_node) {
-+			free_tree_node(tree_node);
-+			goto out;
-+		}
-+
-+		tree_node->hash = hash;
-+		rb_link_node(&tree_node->node, parent, new);
-+		rb_insert_color(&tree_node->node, root_stable_treep);
-+		parent = NULL;
-+		new = &tree_node->sub_root.rb_node;
-+
-+		rb_link_node(&stable_node->node, parent, new);
-+		rb_insert_color(&stable_node->node, &tree_node->sub_root);
-+		tree_node->count++;
-+		*success1 = *success2 = 1;
-+	}
-+
-+out:
-+	return stable_node;
-+}
-+
-+
-+/**
-+ * get_tree_rmap_item_page() - try to get the page and lock the mmap_sem
-+ *
-+ * @return	0 on success, -EBUSY if unable to lock the mmap_sem,
-+ *		-EINVAL if the page mapping has been changed.
-+ */
-+static inline int get_tree_rmap_item_page(struct rmap_item *tree_rmap_item)
-+{
-+	int err;
-+
-+	err = get_mergeable_page_lock_mmap(tree_rmap_item);
-+
-+	if (err == -EINVAL) {
-+		/* its page map has been changed, remove it */
-+		remove_rmap_item_from_tree(tree_rmap_item);
-+	}
-+
-+	/* The page is gotten and mmap_sem is locked now. */
-+	return err;
-+}
-+
-+
-+/**
-+ * unstable_tree_search_insert() - search an unstable tree rmap_item with the
-+ * same hash value. Get its page and trylock the mmap_sem
-+ */
-+static inline
-+struct rmap_item *unstable_tree_search_insert(struct rmap_item *rmap_item,
-+					      u32 hash)
-+
-+{
-+	struct rb_node **new = &root_unstable_tree.rb_node;
-+	struct rb_node *parent = NULL;
-+	struct tree_node *tree_node;
-+	u32 hash_max;
-+	struct rmap_item *tree_rmap_item;
-+
-+	while (*new) {
-+		int cmp;
-+
-+		tree_node = rb_entry(*new, struct tree_node, node);
-+
-+		cmp = hash_cmp(hash, tree_node->hash);
-+
-+		if (cmp < 0) {
-+			parent = *new;
-+			new = &parent->rb_left;
-+		} else if (cmp > 0) {
-+			parent = *new;
-+			new = &parent->rb_right;
-+		} else
-+			break;
-+	}
-+
-+	if (*new) {
-+		/* got the tree_node */
-+		if (tree_node->count == 1) {
-+			tree_rmap_item = rb_entry(tree_node->sub_root.rb_node,
-+						  struct rmap_item, node);
-+			BUG_ON(!tree_rmap_item);
-+
-+			goto get_page_out;
-+		}
-+
-+		/* well, search the collision subtree */
-+		new = &tree_node->sub_root.rb_node;
-+		BUG_ON(!*new);
-+		hash_max = rmap_item_hash_max(rmap_item, hash);
-+
-+		while (*new) {
-+			int cmp;
-+
-+			tree_rmap_item = rb_entry(*new, struct rmap_item,
-+						  node);
-+
-+			cmp = hash_cmp(hash_max, tree_rmap_item->hash_max);
-+			parent = *new;
-+			if (cmp < 0)
-+				new = &parent->rb_left;
-+			else if (cmp > 0)
-+				new = &parent->rb_right;
-+			else
-+				goto get_page_out;
-+		}
-+	} else {
-+		/* alloc a new tree_node */
-+		tree_node = alloc_tree_node(&unstable_tree_node_list);
-+		if (!tree_node)
-+			return NULL;
-+
-+		tree_node->hash = hash;
-+		rb_link_node(&tree_node->node, parent, new);
-+		rb_insert_color(&tree_node->node, &root_unstable_tree);
-+		parent = NULL;
-+		new = &tree_node->sub_root.rb_node;
-+	}
-+
-+	/* did not found even in sub-tree */
-+	rmap_item->tree_node = tree_node;
-+	rmap_item->address |= UNSTABLE_FLAG;
-+	rmap_item->hash_round = uksm_hash_round;
-+	rb_link_node(&rmap_item->node, parent, new);
-+	rb_insert_color(&rmap_item->node, &tree_node->sub_root);
-+
-+	uksm_pages_unshared++;
-+	return NULL;
-+
-+get_page_out:
-+	if (tree_rmap_item->page == rmap_item->page)
-+		return NULL;
-+
-+	if (get_tree_rmap_item_page(tree_rmap_item))
-+		return NULL;
-+
-+	return tree_rmap_item;
-+}
-+
-+static void hold_anon_vma(struct rmap_item *rmap_item,
-+			  struct anon_vma *anon_vma)
-+{
-+	rmap_item->anon_vma = anon_vma;
-+	get_anon_vma(anon_vma);
-+}
-+
-+
-+/**
-+ * stable_tree_append() - append a rmap_item to a stable node. Deduplication
-+ * ratio statistics is done in this function.
-+ *
-+ */
-+static void stable_tree_append(struct rmap_item *rmap_item,
-+			       struct stable_node *stable_node, int logdedup)
-+{
-+	struct node_vma *node_vma = NULL, *new_node_vma, *node_vma_cont = NULL;
-+	unsigned long key = (unsigned long)rmap_item->slot;
-+	unsigned long factor = rmap_item->slot->rung->step;
-+
-+	BUG_ON(!stable_node);
-+	rmap_item->address |= STABLE_FLAG;
-+
-+	if (hlist_empty(&stable_node->hlist)) {
-+		uksm_pages_shared++;
-+		goto node_vma_new;
-+	} else {
-+		uksm_pages_sharing++;
-+	}
-+
-+	hlist_for_each_entry(node_vma, &stable_node->hlist, hlist) {
-+		if (node_vma->key >= key)
-+			break;
-+
-+		if (logdedup) {
-+			node_vma->slot->pages_bemerged += factor;
-+			if (list_empty(&node_vma->slot->dedup_list))
-+				list_add(&node_vma->slot->dedup_list,
-+					 &vma_slot_dedup);
-+		}
-+	}
-+
-+	if (node_vma) {
-+		if (node_vma->key == key) {
-+			node_vma_cont = hlist_entry_safe(node_vma->hlist.next, struct node_vma, hlist);
-+			goto node_vma_ok;
-+		} else if (node_vma->key > key) {
-+			node_vma_cont = node_vma;
-+		}
-+	}
-+
-+node_vma_new:
-+	/* no same vma already in node, alloc a new node_vma */
-+	new_node_vma = alloc_node_vma();
-+	BUG_ON(!new_node_vma);
-+	new_node_vma->head = stable_node;
-+	new_node_vma->slot = rmap_item->slot;
-+
-+	if (!node_vma) {
-+		hlist_add_head(&new_node_vma->hlist, &stable_node->hlist);
-+	} else if (node_vma->key != key) {
-+		if (node_vma->key < key)
-+			hlist_add_behind(&new_node_vma->hlist, &node_vma->hlist);
-+		else {
-+			hlist_add_before(&new_node_vma->hlist,
-+					 &node_vma->hlist);
-+		}
-+
-+	}
-+	node_vma = new_node_vma;
-+
-+node_vma_ok: /* ok, ready to add to the list */
-+	rmap_item->head = node_vma;
-+	hlist_add_head(&rmap_item->hlist, &node_vma->rmap_hlist);
-+	hold_anon_vma(rmap_item, rmap_item->slot->vma->anon_vma);
-+	if (logdedup) {
-+		rmap_item->slot->pages_merged++;
-+		if (node_vma_cont) {
-+			node_vma = node_vma_cont;
-+			hlist_for_each_entry_continue(node_vma, hlist) {
-+				node_vma->slot->pages_bemerged += factor;
-+				if (list_empty(&node_vma->slot->dedup_list))
-+					list_add(&node_vma->slot->dedup_list,
-+						 &vma_slot_dedup);
-+			}
-+		}
-+	}
-+}
-+
-+/*
-+ * We use break_ksm to break COW on a ksm page: it's a stripped down
-+ *
-+ *	if (get_user_pages(addr, 1, 1, 1, &page, NULL) == 1)
-+ *		put_page(page);
-+ *
-+ * but taking great care only to touch a ksm page, in a VM_MERGEABLE vma,
-+ * in case the application has unmapped and remapped mm,addr meanwhile.
-+ * Could a ksm page appear anywhere else?  Actually yes, in a VM_PFNMAP
-+ * mmap of /dev/mem or /dev/kmem, where we would not want to touch it.
-+ */
-+static int break_ksm(struct vm_area_struct *vma, unsigned long addr)
-+{
-+	struct page *page;
-+	int ret = 0;
-+
-+	do {
-+		cond_resched();
-+		page = follow_page(vma, addr, FOLL_GET | FOLL_MIGRATION | FOLL_REMOTE);
-+		if (IS_ERR_OR_NULL(page))
-+			break;
-+		if (PageKsm(page)) {
-+			ret = handle_mm_fault(vma, addr,
-+					      FAULT_FLAG_WRITE | FAULT_FLAG_REMOTE,
-+                                             NULL);
-+		} else
-+			ret = VM_FAULT_WRITE;
-+		put_page(page);
-+	} while (!(ret & (VM_FAULT_WRITE | VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV | VM_FAULT_OOM)));
-+	/*
-+	 * We must loop because handle_mm_fault() may back out if there's
-+	 * any difficulty e.g. if pte accessed bit gets updated concurrently.
-+	 *
-+	 * VM_FAULT_WRITE is what we have been hoping for: it indicates that
-+	 * COW has been broken, even if the vma does not permit VM_WRITE;
-+	 * but note that a concurrent fault might break PageKsm for us.
-+	 *
-+	 * VM_FAULT_SIGBUS could occur if we race with truncation of the
-+	 * backing file, which also invalidates anonymous pages: that's
-+	 * okay, that truncation will have unmapped the PageKsm for us.
-+	 *
-+	 * VM_FAULT_OOM: at the time of writing (late July 2009), setting
-+	 * aside mem_cgroup limits, VM_FAULT_OOM would only be set if the
-+	 * current task has TIF_MEMDIE set, and will be OOM killed on return
-+	 * to user; and ksmd, having no mm, would never be chosen for that.
-+	 *
-+	 * But if the mm is in a limited mem_cgroup, then the fault may fail
-+	 * with VM_FAULT_OOM even if the current task is not TIF_MEMDIE; and
-+	 * even ksmd can fail in this way - though it's usually breaking ksm
-+	 * just to undo a merge it made a moment before, so unlikely to oom.
-+	 *
-+	 * That's a pity: we might therefore have more kernel pages allocated
-+	 * than we're counting as nodes in the stable tree; but uksm_do_scan
-+	 * will retry to break_cow on each pass, so should recover the page
-+	 * in due course.  The important thing is to not let VM_MERGEABLE
-+	 * be cleared while any such pages might remain in the area.
-+	 */
-+	return (ret & VM_FAULT_OOM) ? -ENOMEM : 0;
-+}
-+
-+static void break_cow(struct rmap_item *rmap_item)
-+{
-+	struct vm_area_struct *vma = rmap_item->slot->vma;
-+	struct mm_struct *mm = vma->vm_mm;
-+	unsigned long addr = get_rmap_addr(rmap_item);
-+
-+	if (uksm_test_exit(mm))
-+		goto out;
-+
-+	break_ksm(vma, addr);
-+out:
-+	return;
-+}
-+
-+/*
-+ * Though it's very tempting to unmerge in_stable_tree(rmap_item)s rather
-+ * than check every pte of a given vma, the locking doesn't quite work for
-+ * that - an rmap_item is assigned to the stable tree after inserting ksm
-+ * page and upping mmap_sem.  Nor does it fit with the way we skip dup'ing
-+ * rmap_items from parent to child at fork time (so as not to waste time
-+ * if exit comes before the next scan reaches it).
-+ *
-+ * Similarly, although we'd like to remove rmap_items (so updating counts
-+ * and freeing memory) when unmerging an area, it's easier to leave that
-+ * to the next pass of ksmd - consider, for example, how ksmd might be
-+ * in cmp_and_merge_page on one of the rmap_items we would be removing.
-+ */
-+inline int unmerge_uksm_pages(struct vm_area_struct *vma,
-+		      unsigned long start, unsigned long end)
-+{
-+	unsigned long addr;
-+	int err = 0;
-+
-+	for (addr = start; addr < end && !err; addr += PAGE_SIZE) {
-+		if (uksm_test_exit(vma->vm_mm))
-+			break;
-+		if (signal_pending(current))
-+			err = -ERESTARTSYS;
-+		else
-+			err = break_ksm(vma, addr);
-+	}
-+	return err;
-+}
-+
-+static inline void inc_uksm_pages_scanned(void)
-+{
-+	u64 delta;
-+
-+
-+	if (uksm_pages_scanned == U64_MAX) {
-+		encode_benefit();
-+
-+		delta = uksm_pages_scanned >> pages_scanned_base;
-+
-+		if (CAN_OVERFLOW_U64(pages_scanned_stored, delta)) {
-+			pages_scanned_stored >>= 1;
-+			delta >>= 1;
-+			pages_scanned_base++;
-+		}
-+
-+		pages_scanned_stored += delta;
-+
-+		uksm_pages_scanned = uksm_pages_scanned_last = 0;
-+	}
-+
-+	uksm_pages_scanned++;
-+}
-+
-+static inline int find_zero_page_hash(int strength, u32 hash)
-+{
-+	return (zero_hash_table[strength] == hash);
-+}
-+
-+static
-+int cmp_and_merge_zero_page(struct vm_area_struct *vma, struct page *page)
-+{
-+	struct page *zero_page = empty_uksm_zero_page;
-+	struct mm_struct *mm = vma->vm_mm;
-+	pte_t orig_pte = __pte(0);
-+	int err = -EFAULT;
-+
-+	if (uksm_test_exit(mm))
-+		goto out;
-+
-+	if (!trylock_page(page))
-+		goto out;
-+
-+	if (!PageAnon(page))
-+		goto out_unlock;
-+
-+	if (PageTransCompound(page)) {
-+		err = split_huge_page(page);
-+		if (err)
-+			goto out_unlock;
-+	}
-+
-+	if (write_protect_page(vma, page, &orig_pte, 0) == 0) {
-+		if (is_page_full_zero(page))
-+			err = replace_page(vma, page, zero_page, orig_pte);
-+	}
-+
-+out_unlock:
-+	unlock_page(page);
-+out:
-+	return err;
-+}
-+
-+/*
-+ * cmp_and_merge_page() - first see if page can be merged into the stable
-+ * tree; if not, compare hash to previous and if it's the same, see if page
-+ * can be inserted into the unstable tree, or merged with a page already there
-+ * and both transferred to the stable tree.
-+ *
-+ * @page: the page that we are searching identical page to.
-+ * @rmap_item: the reverse mapping into the virtual address of this page
-+ */
-+static void cmp_and_merge_page(struct rmap_item *rmap_item, u32 hash)
-+{
-+	struct rmap_item *tree_rmap_item;
-+	struct page *page;
-+	struct page *kpage = NULL;
-+	u32 hash_max;
-+	int err;
-+	unsigned int success1, success2;
-+	struct stable_node *snode;
-+	int cmp;
-+	struct rb_node *parent = NULL, **new;
-+
-+	remove_rmap_item_from_tree(rmap_item);
-+	page = rmap_item->page;
-+
-+	/* We first start with searching the page inside the stable tree */
-+	kpage = stable_tree_search(rmap_item, hash);
-+	if (kpage) {
-+		err = try_to_merge_with_uksm_page(rmap_item, kpage,
-+						 hash);
-+		if (!err) {
-+			/*
-+			 * The page was successfully merged, add
-+			 * its rmap_item to the stable tree.
-+			 * page lock is needed because it's
-+			 * racing with try_to_unmap_ksm(), etc.
-+			 */
-+			lock_page(kpage);
-+			snode = page_stable_node(kpage);
-+			stable_tree_append(rmap_item, snode, 1);
-+			unlock_page(kpage);
-+			put_page(kpage);
-+			return; /* success */
-+		}
-+		put_page(kpage);
-+
-+		/*
-+		 * if it's a collision and it has been search in sub-rbtree
-+		 * (hash_max != 0), we want to abort, because if it is
-+		 * successfully merged in unstable tree, the collision trends to
-+		 * happen again.
-+		 */
-+		if (err == MERGE_ERR_COLLI && rmap_item->hash_max)
-+			return;
-+	}
-+
-+	tree_rmap_item =
-+		unstable_tree_search_insert(rmap_item, hash);
-+	if (tree_rmap_item) {
-+		err = try_to_merge_two_pages(rmap_item, tree_rmap_item, hash);
-+		/*
-+		 * As soon as we merge this page, we want to remove the
-+		 * rmap_item of the page we have merged with from the unstable
-+		 * tree, and insert it instead as new node in the stable tree.
-+		 */
-+		if (!err) {
-+			kpage = page;
-+			remove_rmap_item_from_tree(tree_rmap_item);
-+			lock_page(kpage);
-+			snode = stable_tree_insert(&kpage, hash,
-+						   rmap_item, tree_rmap_item,
-+						   &success1, &success2);
-+
-+			/*
-+			 * Do not log dedup for tree item, it's not counted as
-+			 * scanned in this round.
-+			 */
-+			if (success2)
-+				stable_tree_append(tree_rmap_item, snode, 0);
-+
-+			/*
-+			 * The order of these two stable append is important:
-+			 * we are scanning rmap_item.
-+			 */
-+			if (success1)
-+				stable_tree_append(rmap_item, snode, 1);
-+
-+			/*
-+			 * The original kpage may be unlocked inside
-+			 * stable_tree_insert() already. This page
-+			 * should be unlocked before doing
-+			 * break_cow().
-+			 */
-+			unlock_page(kpage);
-+
-+			if (!success1)
-+				break_cow(rmap_item);
-+
-+			if (!success2)
-+				break_cow(tree_rmap_item);
-+
-+		} else if (err == MERGE_ERR_COLLI) {
-+			BUG_ON(tree_rmap_item->tree_node->count > 1);
-+
-+			rmap_item_hash_max(tree_rmap_item,
-+					   tree_rmap_item->tree_node->hash);
-+
-+			hash_max = rmap_item_hash_max(rmap_item, hash);
-+			cmp = hash_cmp(hash_max, tree_rmap_item->hash_max);
-+			parent = &tree_rmap_item->node;
-+			if (cmp < 0)
-+				new = &parent->rb_left;
-+			else if (cmp > 0)
-+				new = &parent->rb_right;
-+			else
-+				goto put_up_out;
-+
-+			rmap_item->tree_node = tree_rmap_item->tree_node;
-+			rmap_item->address |= UNSTABLE_FLAG;
-+			rmap_item->hash_round = uksm_hash_round;
-+			rb_link_node(&rmap_item->node, parent, new);
-+			rb_insert_color(&rmap_item->node,
-+					&tree_rmap_item->tree_node->sub_root);
-+			rmap_item->tree_node->count++;
-+		} else {
-+			/*
-+			 * either one of the page has changed or they collide
-+			 * at the max hash, we consider them as ill items.
-+			 */
-+			remove_rmap_item_from_tree(tree_rmap_item);
-+		}
-+put_up_out:
-+		put_page(tree_rmap_item->page);
-+		mmap_read_unlock(tree_rmap_item->slot->vma->vm_mm);
-+	}
-+}
-+
-+
-+
-+
-+static inline unsigned long get_pool_index(struct vma_slot *slot,
-+					   unsigned long index)
-+{
-+	unsigned long pool_index;
-+
-+	pool_index = (sizeof(struct rmap_list_entry *) * index) >> PAGE_SHIFT;
-+	if (pool_index >= slot->pool_size)
-+		BUG();
-+	return pool_index;
-+}
-+
-+static inline unsigned long index_page_offset(unsigned long index)
-+{
-+	return offset_in_page(sizeof(struct rmap_list_entry *) * index);
-+}
-+
-+static inline
-+struct rmap_list_entry *get_rmap_list_entry(struct vma_slot *slot,
-+					    unsigned long index, int need_alloc)
-+{
-+	unsigned long pool_index;
-+	struct page *page;
-+	void *addr;
-+
-+
-+	pool_index = get_pool_index(slot, index);
-+	if (!slot->rmap_list_pool[pool_index]) {
-+		if (!need_alloc)
-+			return NULL;
-+
-+		page = alloc_page(GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN);
-+		if (!page)
-+			return NULL;
-+
-+		slot->rmap_list_pool[pool_index] = page;
-+	}
-+
-+	addr = kmap(slot->rmap_list_pool[pool_index]);
-+	addr += index_page_offset(index);
-+
-+	return addr;
-+}
-+
-+static inline void put_rmap_list_entry(struct vma_slot *slot,
-+				       unsigned long index)
-+{
-+	unsigned long pool_index;
-+
-+	pool_index = get_pool_index(slot, index);
-+	BUG_ON(!slot->rmap_list_pool[pool_index]);
-+	kunmap(slot->rmap_list_pool[pool_index]);
-+}
-+
-+static inline int entry_is_new(struct rmap_list_entry *entry)
-+{
-+	return !entry->item;
-+}
-+
-+static inline unsigned long get_index_orig_addr(struct vma_slot *slot,
-+						unsigned long index)
-+{
-+	return slot->vma->vm_start + (index << PAGE_SHIFT);
-+}
-+
-+static inline unsigned long get_entry_address(struct rmap_list_entry *entry)
-+{
-+	unsigned long addr;
-+
-+	if (is_addr(entry->addr))
-+		addr = get_clean_addr(entry->addr);
-+	else if (entry->item)
-+		addr = get_rmap_addr(entry->item);
-+	else
-+		BUG();
-+
-+	return addr;
-+}
-+
-+static inline struct rmap_item *get_entry_item(struct rmap_list_entry *entry)
-+{
-+	if (is_addr(entry->addr))
-+		return NULL;
-+
-+	return entry->item;
-+}
-+
-+static inline void inc_rmap_list_pool_count(struct vma_slot *slot,
-+					    unsigned long index)
-+{
-+	unsigned long pool_index;
-+
-+	pool_index = get_pool_index(slot, index);
-+	BUG_ON(!slot->rmap_list_pool[pool_index]);
-+	slot->pool_counts[pool_index]++;
-+}
-+
-+static inline void dec_rmap_list_pool_count(struct vma_slot *slot,
-+					    unsigned long index)
-+{
-+	unsigned long pool_index;
-+
-+	pool_index = get_pool_index(slot, index);
-+	BUG_ON(!slot->rmap_list_pool[pool_index]);
-+	BUG_ON(!slot->pool_counts[pool_index]);
-+	slot->pool_counts[pool_index]--;
-+}
-+
-+static inline int entry_has_rmap(struct rmap_list_entry *entry)
-+{
-+	return !is_addr(entry->addr) && entry->item;
-+}
-+
-+static inline void swap_entries(struct rmap_list_entry *entry1,
-+				unsigned long index1,
-+				struct rmap_list_entry *entry2,
-+				unsigned long index2)
-+{
-+	struct rmap_list_entry tmp;
-+
-+	/* swapping two new entries is meaningless */
-+	BUG_ON(entry_is_new(entry1) && entry_is_new(entry2));
-+
-+	tmp = *entry1;
-+	*entry1 = *entry2;
-+	*entry2 = tmp;
-+
-+	if (entry_has_rmap(entry1))
-+		entry1->item->entry_index = index1;
-+
-+	if (entry_has_rmap(entry2))
-+		entry2->item->entry_index = index2;
-+
-+	if (entry_has_rmap(entry1) && !entry_has_rmap(entry2)) {
-+		inc_rmap_list_pool_count(entry1->item->slot, index1);
-+		dec_rmap_list_pool_count(entry1->item->slot, index2);
-+	} else if (!entry_has_rmap(entry1) && entry_has_rmap(entry2)) {
-+		inc_rmap_list_pool_count(entry2->item->slot, index2);
-+		dec_rmap_list_pool_count(entry2->item->slot, index1);
-+	}
-+}
-+
-+static inline void free_entry_item(struct rmap_list_entry *entry)
-+{
-+	unsigned long index;
-+	struct rmap_item *item;
-+
-+	if (!is_addr(entry->addr)) {
-+		BUG_ON(!entry->item);
-+		item = entry->item;
-+		entry->addr = get_rmap_addr(item);
-+		set_is_addr(entry->addr);
-+		index = item->entry_index;
-+		remove_rmap_item_from_tree(item);
-+		dec_rmap_list_pool_count(item->slot, index);
-+		free_rmap_item(item);
-+	}
-+}
-+
-+static inline int pool_entry_boundary(unsigned long index)
-+{
-+	unsigned long linear_addr;
-+
-+	linear_addr = sizeof(struct rmap_list_entry *) * index;
-+	return index && !offset_in_page(linear_addr);
-+}
-+
-+static inline void try_free_last_pool(struct vma_slot *slot,
-+				      unsigned long index)
-+{
-+	unsigned long pool_index;
-+
-+	pool_index = get_pool_index(slot, index);
-+	if (slot->rmap_list_pool[pool_index] &&
-+	    !slot->pool_counts[pool_index]) {
-+		__free_page(slot->rmap_list_pool[pool_index]);
-+		slot->rmap_list_pool[pool_index] = NULL;
-+		slot->flags |= UKSM_SLOT_NEED_SORT;
-+	}
-+
-+}
-+
-+static inline unsigned long vma_item_index(struct vm_area_struct *vma,
-+					   struct rmap_item *item)
-+{
-+	return (get_rmap_addr(item) - vma->vm_start) >> PAGE_SHIFT;
-+}
-+
-+static int within_same_pool(struct vma_slot *slot,
-+			    unsigned long i, unsigned long j)
-+{
-+	unsigned long pool_i, pool_j;
-+
-+	pool_i = get_pool_index(slot, i);
-+	pool_j = get_pool_index(slot, j);
-+
-+	return (pool_i == pool_j);
-+}
-+
-+static void sort_rmap_entry_list(struct vma_slot *slot)
-+{
-+	unsigned long i, j;
-+	struct rmap_list_entry *entry, *swap_entry;
-+
-+	entry = get_rmap_list_entry(slot, 0, 0);
-+	for (i = 0; i < slot->pages; ) {
-+
-+		if (!entry)
-+			goto skip_whole_pool;
-+
-+		if (entry_is_new(entry))
-+			goto next_entry;
-+
-+		if (is_addr(entry->addr)) {
-+			entry->addr = 0;
-+			goto next_entry;
-+		}
-+
-+		j = vma_item_index(slot->vma, entry->item);
-+		if (j == i)
-+			goto next_entry;
-+
-+		if (within_same_pool(slot, i, j))
-+			swap_entry = entry + j - i;
-+		else
-+			swap_entry = get_rmap_list_entry(slot, j, 1);
-+
-+		swap_entries(entry, i, swap_entry, j);
-+		if (!within_same_pool(slot, i, j))
-+			put_rmap_list_entry(slot, j);
-+		continue;
-+
-+skip_whole_pool:
-+		i += PAGE_SIZE / sizeof(*entry);
-+		if (i < slot->pages)
-+			entry = get_rmap_list_entry(slot, i, 0);
-+		continue;
-+
-+next_entry:
-+		if (i >= slot->pages - 1 ||
-+		    !within_same_pool(slot, i, i + 1)) {
-+			put_rmap_list_entry(slot, i);
-+			if (i + 1 < slot->pages)
-+				entry = get_rmap_list_entry(slot, i + 1, 0);
-+		} else
-+			entry++;
-+		i++;
-+		continue;
-+	}
-+
-+	/* free empty pool entries which contain no rmap_item */
-+	/* CAN be simplied to based on only pool_counts when bug freed !!!!! */
-+	for (i = 0; i < slot->pool_size; i++) {
-+		unsigned char has_rmap;
-+		void *addr;
-+
-+		if (!slot->rmap_list_pool[i])
-+			continue;
-+
-+		has_rmap = 0;
-+		addr = kmap(slot->rmap_list_pool[i]);
-+		BUG_ON(!addr);
-+		for (j = 0; j < PAGE_SIZE / sizeof(*entry); j++) {
-+			entry = (struct rmap_list_entry *)addr + j;
-+			if (is_addr(entry->addr))
-+				continue;
-+			if (!entry->item)
-+				continue;
-+			has_rmap = 1;
-+		}
-+		kunmap(slot->rmap_list_pool[i]);
-+		if (!has_rmap) {
-+			BUG_ON(slot->pool_counts[i]);
-+			__free_page(slot->rmap_list_pool[i]);
-+			slot->rmap_list_pool[i] = NULL;
-+		}
-+	}
-+
-+	slot->flags &= ~UKSM_SLOT_NEED_SORT;
-+}
-+
-+/*
-+ * vma_fully_scanned() - if all the pages in this slot have been scanned.
-+ */
-+static inline int vma_fully_scanned(struct vma_slot *slot)
-+{
-+	return slot->pages_scanned == slot->pages;
-+}
-+
-+/**
-+ * get_next_rmap_item() - Get the next rmap_item in a vma_slot according to
-+ * its random permutation. This function is embedded with the random
-+ * permutation index management code.
-+ */
-+static struct rmap_item *get_next_rmap_item(struct vma_slot *slot, u32 *hash)
-+{
-+	unsigned long rand_range, addr, swap_index, scan_index;
-+	struct rmap_item *item = NULL;
-+	struct rmap_list_entry *scan_entry, *swap_entry = NULL;
-+	struct page *page;
-+
-+	scan_index = swap_index = slot->pages_scanned % slot->pages;
-+
-+	if (pool_entry_boundary(scan_index))
-+		try_free_last_pool(slot, scan_index - 1);
-+
-+	if (vma_fully_scanned(slot)) {
-+		if (slot->flags & UKSM_SLOT_NEED_SORT)
-+			slot->flags |= UKSM_SLOT_NEED_RERAND;
-+		else
-+			slot->flags &= ~UKSM_SLOT_NEED_RERAND;
-+		if (slot->flags & UKSM_SLOT_NEED_SORT)
-+			sort_rmap_entry_list(slot);
-+	}
-+
-+	scan_entry = get_rmap_list_entry(slot, scan_index, 1);
-+	if (!scan_entry)
-+		return NULL;
-+
-+	if (entry_is_new(scan_entry)) {
-+		scan_entry->addr = get_index_orig_addr(slot, scan_index);
-+		set_is_addr(scan_entry->addr);
-+	}
-+
-+	if (slot->flags & UKSM_SLOT_NEED_RERAND) {
-+		rand_range = slot->pages - scan_index;
-+		BUG_ON(!rand_range);
-+		swap_index = scan_index + (prandom_u32() % rand_range);
-+	}
-+
-+	if (swap_index != scan_index) {
-+		swap_entry = get_rmap_list_entry(slot, swap_index, 1);
-+
-+		if (!swap_entry)
-+			return NULL;
-+
-+		if (entry_is_new(swap_entry)) {
-+			swap_entry->addr = get_index_orig_addr(slot,
-+							       swap_index);
-+			set_is_addr(swap_entry->addr);
-+		}
-+		swap_entries(scan_entry, scan_index, swap_entry, swap_index);
-+	}
-+
-+	addr = get_entry_address(scan_entry);
-+	item = get_entry_item(scan_entry);
-+	BUG_ON(addr > slot->vma->vm_end || addr < slot->vma->vm_start);
-+
-+	page = follow_page(slot->vma, addr, FOLL_GET);
-+	if (IS_ERR_OR_NULL(page))
-+		goto nopage;
-+
-+	if (!PageAnon(page))
-+		goto putpage;
-+
-+	/*check is zero_page pfn or uksm_zero_page*/
-+	if ((page_to_pfn(page) == zero_pfn)
-+			|| (page_to_pfn(page) == uksm_zero_pfn))
-+		goto putpage;
-+
-+	flush_anon_page(slot->vma, page, addr);
-+	flush_dcache_page(page);
-+
-+
-+	*hash = page_hash(page, hash_strength, 1);
-+	inc_uksm_pages_scanned();
-+	/*if the page content all zero, re-map to zero-page*/
-+	if (find_zero_page_hash(hash_strength, *hash)) {
-+		if (!cmp_and_merge_zero_page(slot->vma, page)) {
-+			slot->pages_merged++;
-+
-+			/* For full-zero pages, no need to create rmap item */
-+			goto putpage;
-+		} else {
-+			inc_rshash_neg(memcmp_cost / 2);
-+		}
-+	}
-+
-+	if (!item) {
-+		item = alloc_rmap_item();
-+		if (item) {
-+			/* It has already been zeroed */
-+			item->slot = slot;
-+			item->address = addr;
-+			item->entry_index = scan_index;
-+			scan_entry->item = item;
-+			inc_rmap_list_pool_count(slot, scan_index);
-+		} else
-+			goto putpage;
-+	}
-+
-+	BUG_ON(item->slot != slot);
-+	/* the page may have changed */
-+	item->page = page;
-+	put_rmap_list_entry(slot, scan_index);
-+	if (swap_entry)
-+		put_rmap_list_entry(slot, swap_index);
-+	return item;
-+
-+putpage:
-+	put_page(page);
-+	page = NULL;
-+nopage:
-+	/* no page, store addr back and free rmap_item if possible */
-+	free_entry_item(scan_entry);
-+	put_rmap_list_entry(slot, scan_index);
-+	if (swap_entry)
-+		put_rmap_list_entry(slot, swap_index);
-+	return NULL;
-+}
-+
-+static inline int in_stable_tree(struct rmap_item *rmap_item)
-+{
-+	return rmap_item->address & STABLE_FLAG;
-+}
-+
-+/**
-+ * scan_vma_one_page() - scan the next page in a vma_slot. Called with
-+ * mmap_sem locked.
-+ */
-+static noinline void scan_vma_one_page(struct vma_slot *slot)
-+{
-+	u32 hash;
-+	struct mm_struct *mm;
-+	struct rmap_item *rmap_item = NULL;
-+	struct vm_area_struct *vma = slot->vma;
-+
-+	mm = vma->vm_mm;
-+	BUG_ON(!mm);
-+	BUG_ON(!slot);
-+
-+	rmap_item = get_next_rmap_item(slot, &hash);
-+	if (!rmap_item)
-+		goto out1;
-+
-+	if (PageKsm(rmap_item->page) && in_stable_tree(rmap_item))
-+		goto out2;
-+
-+	cmp_and_merge_page(rmap_item, hash);
-+out2:
-+	put_page(rmap_item->page);
-+out1:
-+	slot->pages_scanned++;
-+	slot->this_sampled++;
-+	if (slot->fully_scanned_round != fully_scanned_round)
-+		scanned_virtual_pages++;
-+
-+	if (vma_fully_scanned(slot))
-+		slot->fully_scanned_round = fully_scanned_round;
-+}
-+
-+static inline unsigned long rung_get_pages(struct scan_rung *rung)
-+{
-+	struct slot_tree_node *node;
-+
-+	if (!rung->vma_root.rnode)
-+		return 0;
-+
-+	node = container_of(rung->vma_root.rnode, struct slot_tree_node, snode);
-+
-+	return node->size;
-+}
-+
-+#define RUNG_SAMPLED_MIN	3
-+
-+static inline
-+void uksm_calc_rung_step(struct scan_rung *rung,
-+			 unsigned long page_time, unsigned long ratio)
-+{
-+	unsigned long sampled, pages;
-+
-+	/* will be fully scanned ? */
-+	if (!rung->cover_msecs) {
-+		rung->step = 1;
-+		return;
-+	}
-+
-+	sampled = rung->cover_msecs * (NSEC_PER_MSEC / TIME_RATIO_SCALE)
-+		  * ratio / page_time;
-+
-+	/*
-+	 *  Before we finsish a scan round and expensive per-round jobs,
-+	 *  we need to have a chance to estimate the per page time. So
-+	 *  the sampled number can not be too small.
-+	 */
-+	if (sampled < RUNG_SAMPLED_MIN)
-+		sampled = RUNG_SAMPLED_MIN;
-+
-+	pages = rung_get_pages(rung);
-+	if (likely(pages > sampled))
-+		rung->step = pages / sampled;
-+	else
-+		rung->step = 1;
-+}
-+
-+static inline int step_need_recalc(struct scan_rung *rung)
-+{
-+	unsigned long pages, stepmax;
-+
-+	pages = rung_get_pages(rung);
-+	stepmax = pages / RUNG_SAMPLED_MIN;
-+
-+	return pages && (rung->step > pages ||
-+			 (stepmax && rung->step > stepmax));
-+}
-+
-+static inline
-+void reset_current_scan(struct scan_rung *rung, int finished, int step_recalc)
-+{
-+	struct vma_slot *slot;
-+
-+	if (finished)
-+		rung->flags |= UKSM_RUNG_ROUND_FINISHED;
-+
-+	if (step_recalc || step_need_recalc(rung)) {
-+		uksm_calc_rung_step(rung, uksm_ema_page_time, rung->cpu_ratio);
-+		BUG_ON(step_need_recalc(rung));
-+	}
-+
-+	slot_iter_index = prandom_u32() % rung->step;
-+	BUG_ON(!rung->vma_root.rnode);
-+	slot = sradix_tree_next(&rung->vma_root, NULL, 0, slot_iter);
-+	BUG_ON(!slot);
-+
-+	rung->current_scan = slot;
-+	rung->current_offset = slot_iter_index;
-+}
-+
-+static inline struct sradix_tree_root *slot_get_root(struct vma_slot *slot)
-+{
-+	return &slot->rung->vma_root;
-+}
-+
-+/*
-+ * return if resetted.
-+ */
-+static int advance_current_scan(struct scan_rung *rung)
-+{
-+	unsigned short n;
-+	struct vma_slot *slot, *next = NULL;
-+
-+	BUG_ON(!rung->vma_root.num);
-+
-+	slot = rung->current_scan;
-+	n = (slot->pages - rung->current_offset) % rung->step;
-+	slot_iter_index = rung->step - n;
-+	next = sradix_tree_next(&rung->vma_root, slot->snode,
-+				slot->sindex, slot_iter);
-+
-+	if (next) {
-+		rung->current_offset = slot_iter_index;
-+		rung->current_scan = next;
-+		return 0;
-+	} else {
-+		reset_current_scan(rung, 1, 0);
-+		return 1;
-+	}
-+}
-+
-+static inline void rung_rm_slot(struct vma_slot *slot)
-+{
-+	struct scan_rung *rung = slot->rung;
-+	struct sradix_tree_root *root;
-+
-+	if (rung->current_scan == slot)
-+		advance_current_scan(rung);
-+
-+	root = slot_get_root(slot);
-+	sradix_tree_delete_from_leaf(root, slot->snode, slot->sindex);
-+	slot->snode = NULL;
-+	if (step_need_recalc(rung)) {
-+		uksm_calc_rung_step(rung, uksm_ema_page_time, rung->cpu_ratio);
-+		BUG_ON(step_need_recalc(rung));
-+	}
-+
-+	/* In case advance_current_scan loop back to this slot again */
-+	if (rung->vma_root.num && rung->current_scan == slot)
-+		reset_current_scan(slot->rung, 1, 0);
-+}
-+
-+static inline void rung_add_new_slots(struct scan_rung *rung,
-+			struct vma_slot **slots, unsigned long num)
-+{
-+	int err;
-+	struct vma_slot *slot;
-+	unsigned long i;
-+	struct sradix_tree_root *root = &rung->vma_root;
-+
-+	err = sradix_tree_enter(root, (void **)slots, num);
-+	BUG_ON(err);
-+
-+	for (i = 0; i < num; i++) {
-+		slot = slots[i];
-+		slot->rung = rung;
-+		BUG_ON(vma_fully_scanned(slot));
-+	}
-+
-+	if (rung->vma_root.num == num)
-+		reset_current_scan(rung, 0, 1);
-+}
-+
-+static inline int rung_add_one_slot(struct scan_rung *rung,
-+				     struct vma_slot *slot)
-+{
-+	int err;
-+
-+	err = sradix_tree_enter(&rung->vma_root, (void **)&slot, 1);
-+	if (err)
-+		return err;
-+
-+	slot->rung = rung;
-+	if (rung->vma_root.num == 1)
-+		reset_current_scan(rung, 0, 1);
-+
-+	return 0;
-+}
-+
-+/*
-+ * Return true if the slot is deleted from its rung.
-+ */
-+static inline int vma_rung_enter(struct vma_slot *slot, struct scan_rung *rung)
-+{
-+	struct scan_rung *old_rung = slot->rung;
-+	int err;
-+
-+	if (old_rung == rung)
-+		return 0;
-+
-+	rung_rm_slot(slot);
-+	err = rung_add_one_slot(rung, slot);
-+	if (err) {
-+		err = rung_add_one_slot(old_rung, slot);
-+		WARN_ON(err); /* OOPS, badly OOM, we lost this slot */
-+	}
-+
-+	return 1;
-+}
-+
-+static inline int vma_rung_up(struct vma_slot *slot)
-+{
-+	struct scan_rung *rung;
-+
-+	rung = slot->rung;
-+	if (slot->rung != &uksm_scan_ladder[SCAN_LADDER_SIZE-1])
-+		rung++;
-+
-+	return vma_rung_enter(slot, rung);
-+}
-+
-+static inline int vma_rung_down(struct vma_slot *slot)
-+{
-+	struct scan_rung *rung;
-+
-+	rung = slot->rung;
-+	if (slot->rung != &uksm_scan_ladder[0])
-+		rung--;
-+
-+	return vma_rung_enter(slot, rung);
-+}
-+
-+/**
-+ * cal_dedup_ratio() - Calculate the deduplication ratio for this slot.
-+ */
-+static unsigned long cal_dedup_ratio(struct vma_slot *slot)
-+{
-+	unsigned long ret;
-+	unsigned long pages;
-+
-+	pages = slot->this_sampled;
-+	if (!pages)
-+		return 0;
-+
-+	BUG_ON(slot->pages_scanned == slot->last_scanned);
-+
-+	ret = slot->pages_merged;
-+
-+	/* Thrashing area filtering */
-+	if (ret && uksm_thrash_threshold) {
-+		if (slot->pages_cowed * 100 / slot->pages_merged
-+		    > uksm_thrash_threshold) {
-+			ret = 0;
-+		} else {
-+			ret = slot->pages_merged - slot->pages_cowed;
-+		}
-+	}
-+
-+	return ret * 100 / pages;
-+}
-+
-+/**
-+ * cal_dedup_ratio() - Calculate the deduplication ratio for this slot.
-+ */
-+static unsigned long cal_dedup_ratio_old(struct vma_slot *slot)
-+{
-+	unsigned long ret;
-+	unsigned long pages;
-+
-+	pages = slot->pages;
-+	if (!pages)
-+		return 0;
-+
-+	ret = slot->pages_bemerged;
-+
-+	/* Thrashing area filtering */
-+	if (ret && uksm_thrash_threshold) {
-+		if (slot->pages_cowed * 100 / slot->pages_bemerged
-+		    > uksm_thrash_threshold) {
-+			ret = 0;
-+		} else {
-+			ret = slot->pages_bemerged - slot->pages_cowed;
-+		}
-+	}
-+
-+	return ret * 100 / pages;
-+}
-+
-+/**
-+ * stable_node_reinsert() - When the hash_strength has been adjusted, the
-+ * stable tree need to be restructured, this is the function re-inserting the
-+ * stable node.
-+ */
-+static inline void stable_node_reinsert(struct stable_node *new_node,
-+					struct page *page,
-+					struct rb_root *root_treep,
-+					struct list_head *tree_node_listp,
-+					u32 hash)
-+{
-+	struct rb_node **new = &root_treep->rb_node;
-+	struct rb_node *parent = NULL;
-+	struct stable_node *stable_node;
-+	struct tree_node *tree_node;
-+	struct page *tree_page;
-+	int cmp;
-+
-+	while (*new) {
-+		int cmp;
-+
-+		tree_node = rb_entry(*new, struct tree_node, node);
-+
-+		cmp = hash_cmp(hash, tree_node->hash);
-+
-+		if (cmp < 0) {
-+			parent = *new;
-+			new = &parent->rb_left;
-+		} else if (cmp > 0) {
-+			parent = *new;
-+			new = &parent->rb_right;
-+		} else
-+			break;
-+	}
-+
-+	if (*new) {
-+		/* find a stable tree node with same first level hash value */
-+		stable_node_hash_max(new_node, page, hash);
-+		if (tree_node->count == 1) {
-+			stable_node = rb_entry(tree_node->sub_root.rb_node,
-+					       struct stable_node, node);
-+			tree_page = get_uksm_page(stable_node, 1, 0);
-+			if (tree_page) {
-+				stable_node_hash_max(stable_node,
-+						      tree_page, hash);
-+				put_page(tree_page);
-+
-+				/* prepare for stable node insertion */
-+
-+				cmp = hash_cmp(new_node->hash_max,
-+						   stable_node->hash_max);
-+				parent = &stable_node->node;
-+				if (cmp < 0)
-+					new = &parent->rb_left;
-+				else if (cmp > 0)
-+					new = &parent->rb_right;
-+				else
-+					goto failed;
-+
-+				goto add_node;
-+			} else {
-+				/* the only stable_node deleted, the tree node
-+				 * was not deleted.
-+				 */
-+				goto tree_node_reuse;
-+			}
-+		}
-+
-+		/* well, search the collision subtree */
-+		new = &tree_node->sub_root.rb_node;
-+		parent = NULL;
-+		BUG_ON(!*new);
-+		while (*new) {
-+			int cmp;
-+
-+			stable_node = rb_entry(*new, struct stable_node, node);
-+
-+			cmp = hash_cmp(new_node->hash_max,
-+					   stable_node->hash_max);
-+
-+			if (cmp < 0) {
-+				parent = *new;
-+				new = &parent->rb_left;
-+			} else if (cmp > 0) {
-+				parent = *new;
-+				new = &parent->rb_right;
-+			} else {
-+				/* oh, no, still a collision */
-+				goto failed;
-+			}
-+		}
-+
-+		goto add_node;
-+	}
-+
-+	/* no tree node found */
-+	tree_node = alloc_tree_node(tree_node_listp);
-+	if (!tree_node) {
-+		pr_err("UKSM: memory allocation error!\n");
-+		goto failed;
-+	} else {
-+		tree_node->hash = hash;
-+		rb_link_node(&tree_node->node, parent, new);
-+		rb_insert_color(&tree_node->node, root_treep);
-+
-+tree_node_reuse:
-+		/* prepare for stable node insertion */
-+		parent = NULL;
-+		new = &tree_node->sub_root.rb_node;
-+	}
-+
-+add_node:
-+	rb_link_node(&new_node->node, parent, new);
-+	rb_insert_color(&new_node->node, &tree_node->sub_root);
-+	new_node->tree_node = tree_node;
-+	tree_node->count++;
-+	return;
-+
-+failed:
-+	/* This can only happen when two nodes have collided
-+	 * in two levels.
-+	 */
-+	new_node->tree_node = NULL;
-+	return;
-+}
-+
-+static inline void free_all_tree_nodes(struct list_head *list)
-+{
-+	struct tree_node *node, *tmp;
-+
-+	list_for_each_entry_safe(node, tmp, list, all_list) {
-+		free_tree_node(node);
-+	}
-+}
-+
-+/**
-+ * stable_tree_delta_hash() - Delta hash the stable tree from previous hash
-+ * strength to the current hash_strength. It re-structures the hole tree.
-+ */
-+static inline void stable_tree_delta_hash(u32 prev_hash_strength)
-+{
-+	struct stable_node *node, *tmp;
-+	struct rb_root *root_new_treep;
-+	struct list_head *new_tree_node_listp;
-+
-+	stable_tree_index = (stable_tree_index + 1) % 2;
-+	root_new_treep = &root_stable_tree[stable_tree_index];
-+	new_tree_node_listp = &stable_tree_node_list[stable_tree_index];
-+	*root_new_treep = RB_ROOT;
-+	BUG_ON(!list_empty(new_tree_node_listp));
-+
-+	/*
-+	 * we need to be safe, the node could be removed by get_uksm_page()
-+	 */
-+	list_for_each_entry_safe(node, tmp, &stable_node_list, all_list) {
-+		void *addr;
-+		struct page *node_page;
-+		u32 hash;
-+
-+		/*
-+		 * We are completely re-structuring the stable nodes to a new
-+		 * stable tree. We don't want to touch the old tree unlinks and
-+		 * old tree_nodes. The old tree_nodes will be freed at once.
-+		 */
-+		node_page = get_uksm_page(node, 0, 0);
-+		if (!node_page)
-+			continue;
-+
-+		if (node->tree_node) {
-+			hash = node->tree_node->hash;
-+
-+			addr = kmap_atomic(node_page);
-+
-+			hash = delta_hash(addr, prev_hash_strength,
-+					  hash_strength, hash);
-+			kunmap_atomic(addr);
-+		} else {
-+			/*
-+			 *it was not inserted to rbtree due to collision in last
-+			 *round scan.
-+			 */
-+			hash = page_hash(node_page, hash_strength, 0);
-+		}
-+
-+		stable_node_reinsert(node, node_page, root_new_treep,
-+				     new_tree_node_listp, hash);
-+		put_page(node_page);
-+	}
-+
-+	root_stable_treep = root_new_treep;
-+	free_all_tree_nodes(stable_tree_node_listp);
-+	BUG_ON(!list_empty(stable_tree_node_listp));
-+	stable_tree_node_listp = new_tree_node_listp;
-+}
-+
-+static inline void inc_hash_strength(unsigned long delta)
-+{
-+	hash_strength += 1 << delta;
-+	if (hash_strength > HASH_STRENGTH_MAX)
-+		hash_strength = HASH_STRENGTH_MAX;
-+}
-+
-+static inline void dec_hash_strength(unsigned long delta)
-+{
-+	unsigned long change = 1 << delta;
-+
-+	if (hash_strength <= change + 1)
-+		hash_strength = 1;
-+	else
-+		hash_strength -= change;
-+}
-+
-+static inline void inc_hash_strength_delta(void)
-+{
-+	hash_strength_delta++;
-+	if (hash_strength_delta > HASH_STRENGTH_DELTA_MAX)
-+		hash_strength_delta = HASH_STRENGTH_DELTA_MAX;
-+}
-+
-+static inline unsigned long get_current_neg_ratio(void)
-+{
-+	u64 pos = benefit.pos;
-+	u64 neg = benefit.neg;
-+
-+	if (!neg)
-+		return 0;
-+
-+	if (!pos || neg > pos)
-+		return 100;
-+
-+	if (neg > div64_u64(U64_MAX, 100))
-+		pos = div64_u64(pos, 100);
-+	else
-+		neg *= 100;
-+
-+	return div64_u64(neg, pos);
-+}
-+
-+static inline unsigned long get_current_benefit(void)
-+{
-+	u64 pos = benefit.pos;
-+	u64 neg = benefit.neg;
-+	u64 scanned = benefit.scanned;
-+
-+	if (neg > pos)
-+		return 0;
-+
-+	return div64_u64((pos - neg), scanned);
-+}
-+
-+static inline int judge_rshash_direction(void)
-+{
-+	u64 current_neg_ratio, stable_benefit;
-+	u64 current_benefit, delta = 0;
-+	int ret = STILL;
-+
-+	/*
-+	 * Try to probe a value after the boot, and in case the system
-+	 * are still for a long time.
-+	 */
-+	if ((fully_scanned_round & 0xFFULL) == 10) {
-+		ret = OBSCURE;
-+		goto out;
-+	}
-+
-+	current_neg_ratio = get_current_neg_ratio();
-+
-+	if (current_neg_ratio == 0) {
-+		rshash_neg_cont_zero++;
-+		if (rshash_neg_cont_zero > 2)
-+			return GO_DOWN;
-+		else
-+			return STILL;
-+	}
-+	rshash_neg_cont_zero = 0;
-+
-+	if (current_neg_ratio > 90) {
-+		ret = GO_UP;
-+		goto out;
-+	}
-+
-+	current_benefit = get_current_benefit();
-+	stable_benefit = rshash_state.stable_benefit;
-+
-+	if (!stable_benefit) {
-+		ret = OBSCURE;
-+		goto out;
-+	}
-+
-+	if (current_benefit > stable_benefit)
-+		delta = current_benefit - stable_benefit;
-+	else if (current_benefit < stable_benefit)
-+		delta = stable_benefit - current_benefit;
-+
-+	delta = div64_u64(100 * delta, stable_benefit);
-+
-+	if (delta > 50) {
-+		rshash_cont_obscure++;
-+		if (rshash_cont_obscure > 2)
-+			return OBSCURE;
-+		else
-+			return STILL;
-+	}
-+
-+out:
-+	rshash_cont_obscure = 0;
-+	return ret;
-+}
-+
-+/**
-+ * rshash_adjust() - The main function to control the random sampling state
-+ * machine for hash strength adapting.
-+ *
-+ * return true if hash_strength has changed.
-+ */
-+static inline int rshash_adjust(void)
-+{
-+	unsigned long prev_hash_strength = hash_strength;
-+
-+	if (!encode_benefit())
-+		return 0;
-+
-+	switch (rshash_state.state) {
-+	case RSHASH_STILL:
-+		switch (judge_rshash_direction()) {
-+		case GO_UP:
-+			if (rshash_state.pre_direct == GO_DOWN)
-+				hash_strength_delta = 0;
-+
-+			inc_hash_strength(hash_strength_delta);
-+			inc_hash_strength_delta();
-+			rshash_state.stable_benefit = get_current_benefit();
-+			rshash_state.pre_direct = GO_UP;
-+			break;
-+
-+		case GO_DOWN:
-+			if (rshash_state.pre_direct == GO_UP)
-+				hash_strength_delta = 0;
-+
-+			dec_hash_strength(hash_strength_delta);
-+			inc_hash_strength_delta();
-+			rshash_state.stable_benefit = get_current_benefit();
-+			rshash_state.pre_direct = GO_DOWN;
-+			break;
-+
-+		case OBSCURE:
-+			rshash_state.stable_point = hash_strength;
-+			rshash_state.turn_point_down = hash_strength;
-+			rshash_state.turn_point_up = hash_strength;
-+			rshash_state.turn_benefit_down = get_current_benefit();
-+			rshash_state.turn_benefit_up = get_current_benefit();
-+			rshash_state.lookup_window_index = 0;
-+			rshash_state.state = RSHASH_TRYDOWN;
-+			dec_hash_strength(hash_strength_delta);
-+			inc_hash_strength_delta();
-+			break;
-+
-+		case STILL:
-+			break;
-+		default:
-+			BUG();
-+		}
-+		break;
-+
-+	case RSHASH_TRYDOWN:
-+		if (rshash_state.lookup_window_index++ % 5 == 0)
-+			rshash_state.below_count = 0;
-+
-+		if (get_current_benefit() < rshash_state.stable_benefit)
-+			rshash_state.below_count++;
-+		else if (get_current_benefit() >
-+			 rshash_state.turn_benefit_down) {
-+			rshash_state.turn_point_down = hash_strength;
-+			rshash_state.turn_benefit_down = get_current_benefit();
-+		}
-+
-+		if (rshash_state.below_count >= 3 ||
-+		    judge_rshash_direction() == GO_UP ||
-+		    hash_strength == 1) {
-+			hash_strength = rshash_state.stable_point;
-+			hash_strength_delta = 0;
-+			inc_hash_strength(hash_strength_delta);
-+			inc_hash_strength_delta();
-+			rshash_state.lookup_window_index = 0;
-+			rshash_state.state = RSHASH_TRYUP;
-+			hash_strength_delta = 0;
-+		} else {
-+			dec_hash_strength(hash_strength_delta);
-+			inc_hash_strength_delta();
-+		}
-+		break;
-+
-+	case RSHASH_TRYUP:
-+		if (rshash_state.lookup_window_index++ % 5 == 0)
-+			rshash_state.below_count = 0;
-+
-+		if (get_current_benefit() < rshash_state.turn_benefit_down)
-+			rshash_state.below_count++;
-+		else if (get_current_benefit() > rshash_state.turn_benefit_up) {
-+			rshash_state.turn_point_up = hash_strength;
-+			rshash_state.turn_benefit_up = get_current_benefit();
-+		}
-+
-+		if (rshash_state.below_count >= 3 ||
-+		    judge_rshash_direction() == GO_DOWN ||
-+		    hash_strength == HASH_STRENGTH_MAX) {
-+			hash_strength = rshash_state.turn_benefit_up >
-+				rshash_state.turn_benefit_down ?
-+				rshash_state.turn_point_up :
-+				rshash_state.turn_point_down;
-+
-+			rshash_state.state = RSHASH_PRE_STILL;
-+		} else {
-+			inc_hash_strength(hash_strength_delta);
-+			inc_hash_strength_delta();
-+		}
-+
-+		break;
-+
-+	case RSHASH_NEW:
-+	case RSHASH_PRE_STILL:
-+		rshash_state.stable_benefit = get_current_benefit();
-+		rshash_state.state = RSHASH_STILL;
-+		hash_strength_delta = 0;
-+		break;
-+	default:
-+		BUG();
-+	}
-+
-+	/* rshash_neg = rshash_pos = 0; */
-+	reset_benefit();
-+
-+	if (prev_hash_strength != hash_strength)
-+		stable_tree_delta_hash(prev_hash_strength);
-+
-+	return prev_hash_strength != hash_strength;
-+}
-+
-+/**
-+ * round_update_ladder() - The main function to do update of all the
-+ * adjustments whenever a scan round is finished.
-+ */
-+static noinline void round_update_ladder(void)
-+{
-+	int i;
-+	unsigned long dedup;
-+	struct vma_slot *slot, *tmp_slot;
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++)
-+		uksm_scan_ladder[i].flags &= ~UKSM_RUNG_ROUND_FINISHED;
-+
-+	list_for_each_entry_safe(slot, tmp_slot, &vma_slot_dedup, dedup_list) {
-+
-+		/* slot may be rung_rm_slot() when mm exits */
-+		if (slot->snode) {
-+			dedup = cal_dedup_ratio_old(slot);
-+			if (dedup && dedup >= uksm_abundant_threshold)
-+				vma_rung_up(slot);
-+		}
-+
-+		slot->pages_bemerged = 0;
-+		slot->pages_cowed = 0;
-+
-+		list_del_init(&slot->dedup_list);
-+	}
-+}
-+
-+static void uksm_del_vma_slot(struct vma_slot *slot)
-+{
-+	int i, j;
-+	struct rmap_list_entry *entry;
-+
-+	if (slot->snode) {
-+		/*
-+		 * In case it just failed when entering the rung, it's not
-+		 * necessary.
-+		 */
-+		rung_rm_slot(slot);
-+	}
-+
-+	if (!list_empty(&slot->dedup_list))
-+		list_del(&slot->dedup_list);
-+
-+	if (!slot->rmap_list_pool || !slot->pool_counts) {
-+		/* In case it OOMed in uksm_vma_enter() */
-+		goto out;
-+	}
-+
-+	for (i = 0; i < slot->pool_size; i++) {
-+		void *addr;
-+
-+		if (!slot->rmap_list_pool[i])
-+			continue;
-+
-+		addr = kmap(slot->rmap_list_pool[i]);
-+		for (j = 0; j < PAGE_SIZE / sizeof(*entry); j++) {
-+			entry = (struct rmap_list_entry *)addr + j;
-+			if (is_addr(entry->addr))
-+				continue;
-+			if (!entry->item)
-+				continue;
-+
-+			remove_rmap_item_from_tree(entry->item);
-+			free_rmap_item(entry->item);
-+			slot->pool_counts[i]--;
-+		}
-+		BUG_ON(slot->pool_counts[i]);
-+		kunmap(slot->rmap_list_pool[i]);
-+		__free_page(slot->rmap_list_pool[i]);
-+	}
-+	kfree(slot->rmap_list_pool);
-+	kfree(slot->pool_counts);
-+
-+out:
-+	slot->rung = NULL;
-+	if (slot->flags & UKSM_SLOT_IN_UKSM) {
-+		BUG_ON(uksm_pages_total < slot->pages);
-+		uksm_pages_total -= slot->pages;
-+	}
-+
-+	if (slot->fully_scanned_round == fully_scanned_round)
-+		scanned_virtual_pages -= slot->pages;
-+	else
-+		scanned_virtual_pages -= slot->pages_scanned;
-+	free_vma_slot(slot);
-+}
-+
-+
-+#define SPIN_LOCK_PERIOD	32
-+static struct vma_slot *cleanup_slots[SPIN_LOCK_PERIOD];
-+static inline void cleanup_vma_slots(void)
-+{
-+	struct vma_slot *slot;
-+	int i;
-+
-+	i = 0;
-+	spin_lock(&vma_slot_list_lock);
-+	while (!list_empty(&vma_slot_del)) {
-+		slot = list_entry(vma_slot_del.next,
-+				  struct vma_slot, slot_list);
-+		list_del(&slot->slot_list);
-+		cleanup_slots[i++] = slot;
-+		if (i == SPIN_LOCK_PERIOD) {
-+			spin_unlock(&vma_slot_list_lock);
-+			while (--i >= 0)
-+				uksm_del_vma_slot(cleanup_slots[i]);
-+			i = 0;
-+			spin_lock(&vma_slot_list_lock);
-+		}
-+	}
-+	spin_unlock(&vma_slot_list_lock);
-+
-+	while (--i >= 0)
-+		uksm_del_vma_slot(cleanup_slots[i]);
-+}
-+
-+/*
-+ * Expotional moving average formula
-+ */
-+static inline unsigned long ema(unsigned long curr, unsigned long last_ema)
-+{
-+	/*
-+	 * For a very high burst, even the ema cannot work well, a false very
-+	 * high per-page time estimation can result in feedback in very high
-+	 * overhead of context switch and rung update -- this will then lead
-+	 * to higher per-paper time, this may not converge.
-+	 *
-+	 * Instead, we try to approach this value in a binary manner.
-+	 */
-+	if (curr > last_ema * 10)
-+		return last_ema * 2;
-+
-+	return (EMA_ALPHA * curr + (100 - EMA_ALPHA) * last_ema) / 100;
-+}
-+
-+/*
-+ * convert cpu ratio in 1/TIME_RATIO_SCALE configured by user to
-+ * nanoseconds based on current uksm_sleep_jiffies.
-+ */
-+static inline unsigned long cpu_ratio_to_nsec(unsigned int ratio)
-+{
-+	return NSEC_PER_USEC * jiffies_to_usecs(uksm_sleep_jiffies) /
-+		(TIME_RATIO_SCALE - ratio) * ratio;
-+}
-+
-+
-+static inline unsigned long rung_real_ratio(int cpu_time_ratio)
-+{
-+	unsigned long ret;
-+
-+	BUG_ON(!cpu_time_ratio);
-+
-+	if (cpu_time_ratio > 0)
-+		ret = cpu_time_ratio;
-+	else
-+		ret = (unsigned long)(-cpu_time_ratio) *
-+			uksm_max_cpu_percentage / 100UL;
-+
-+	return ret ? ret : 1;
-+}
-+
-+static noinline void uksm_calc_scan_pages(void)
-+{
-+	struct scan_rung *ladder = uksm_scan_ladder;
-+	unsigned long sleep_usecs, nsecs;
-+	unsigned long ratio;
-+	int i;
-+	unsigned long per_page;
-+
-+	if (uksm_ema_page_time > 100000 ||
-+	    (((unsigned long) uksm_eval_round & (256UL - 1)) == 0UL))
-+		uksm_ema_page_time = UKSM_PAGE_TIME_DEFAULT;
-+
-+	per_page = uksm_ema_page_time;
-+	BUG_ON(!per_page);
-+
-+	/*
-+	 * For every 8 eval round, we try to probe a uksm_sleep_jiffies value
-+	 * based on saved user input.
-+	 */
-+	if (((unsigned long) uksm_eval_round & (8UL - 1)) == 0UL)
-+		uksm_sleep_jiffies = uksm_sleep_saved;
-+
-+	/* We require a rung scan at least 1 page in a period. */
-+	nsecs = per_page;
-+	ratio = rung_real_ratio(ladder[0].cpu_ratio);
-+	if (cpu_ratio_to_nsec(ratio) < nsecs) {
-+		sleep_usecs = nsecs * (TIME_RATIO_SCALE - ratio) / ratio
-+				/ NSEC_PER_USEC;
-+		uksm_sleep_jiffies = usecs_to_jiffies(sleep_usecs) + 1;
-+	}
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		ratio = rung_real_ratio(ladder[i].cpu_ratio);
-+		ladder[i].pages_to_scan = cpu_ratio_to_nsec(ratio) /
-+					per_page;
-+		BUG_ON(!ladder[i].pages_to_scan);
-+		uksm_calc_rung_step(&ladder[i], per_page, ratio);
-+	}
-+}
-+
-+/*
-+ * From the scan time of this round (ns) to next expected min sleep time
-+ * (ms), be careful of the possible overflows. ratio is taken from
-+ * rung_real_ratio()
-+ */
-+static inline
-+unsigned int scan_time_to_sleep(unsigned long long scan_time, unsigned long ratio)
-+{
-+	scan_time >>= 20; /* to msec level now */
-+	BUG_ON(scan_time > (ULONG_MAX / TIME_RATIO_SCALE));
-+
-+	return (unsigned int) ((unsigned long) scan_time *
-+			       (TIME_RATIO_SCALE - ratio) / ratio);
-+}
-+
-+#define __round_mask(x, y) ((__typeof__(x))((y)-1))
-+#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
-+
-+static void uksm_vma_enter(struct vma_slot **slots, unsigned long num)
-+{
-+	struct scan_rung *rung;
-+
-+	rung = &uksm_scan_ladder[0];
-+	rung_add_new_slots(rung, slots, num);
-+}
-+
-+static struct vma_slot *batch_slots[SLOT_TREE_NODE_STORE_SIZE];
-+
-+static void uksm_enter_all_slots(void)
-+{
-+	struct vma_slot *slot;
-+	unsigned long index;
-+	struct list_head empty_vma_list;
-+	int i;
-+
-+	i = 0;
-+	index = 0;
-+	INIT_LIST_HEAD(&empty_vma_list);
-+
-+	spin_lock(&vma_slot_list_lock);
-+	while (!list_empty(&vma_slot_new)) {
-+		slot = list_entry(vma_slot_new.next,
-+				  struct vma_slot, slot_list);
-+
-+		if (!slot->vma->anon_vma) {
-+			list_move(&slot->slot_list, &empty_vma_list);
-+		} else if (vma_can_enter(slot->vma)) {
-+			batch_slots[index++] = slot;
-+			list_del_init(&slot->slot_list);
-+		} else {
-+			list_move(&slot->slot_list, &vma_slot_noadd);
-+		}
-+
-+		if (++i == SPIN_LOCK_PERIOD ||
-+		    (index && !(index % SLOT_TREE_NODE_STORE_SIZE))) {
-+			spin_unlock(&vma_slot_list_lock);
-+
-+			if (index && !(index % SLOT_TREE_NODE_STORE_SIZE)) {
-+				uksm_vma_enter(batch_slots, index);
-+				index = 0;
-+			}
-+			i = 0;
-+			cond_resched();
-+			spin_lock(&vma_slot_list_lock);
-+		}
-+	}
-+
-+	list_splice(&empty_vma_list, &vma_slot_new);
-+
-+	spin_unlock(&vma_slot_list_lock);
-+
-+	if (index)
-+		uksm_vma_enter(batch_slots, index);
-+
-+}
-+
-+static inline int rung_round_finished(struct scan_rung *rung)
-+{
-+	return rung->flags & UKSM_RUNG_ROUND_FINISHED;
-+}
-+
-+static inline void judge_slot(struct vma_slot *slot)
-+{
-+	struct scan_rung *rung = slot->rung;
-+	unsigned long dedup;
-+	int deleted;
-+
-+	dedup = cal_dedup_ratio(slot);
-+	if (vma_fully_scanned(slot) && uksm_thrash_threshold)
-+		deleted = vma_rung_enter(slot, &uksm_scan_ladder[0]);
-+	else if (dedup && dedup >= uksm_abundant_threshold)
-+		deleted = vma_rung_up(slot);
-+	else
-+		deleted = vma_rung_down(slot);
-+
-+	slot->pages_merged = 0;
-+	slot->pages_cowed = 0;
-+	slot->this_sampled = 0;
-+
-+	if (vma_fully_scanned(slot))
-+		slot->pages_scanned = 0;
-+
-+	slot->last_scanned = slot->pages_scanned;
-+
-+	/* If its deleted in above, then rung was already advanced. */
-+	if (!deleted)
-+		advance_current_scan(rung);
-+}
-+
-+
-+static inline int hash_round_finished(void)
-+{
-+	if (scanned_virtual_pages > (uksm_pages_total >> 2)) {
-+		scanned_virtual_pages = 0;
-+		if (uksm_pages_scanned)
-+			fully_scanned_round++;
-+
-+		return 1;
-+	} else {
-+		return 0;
-+	}
-+}
-+
-+#define UKSM_MMSEM_BATCH	5
-+#define BUSY_RETRY		100
-+
-+/**
-+ * uksm_do_scan()  - the main worker function.
-+ */
-+static noinline void uksm_do_scan(void)
-+{
-+	struct vma_slot *slot, *iter;
-+	struct mm_struct *busy_mm;
-+	unsigned char round_finished, all_rungs_emtpy;
-+	int i, err, mmsem_batch;
-+	unsigned long pcost;
-+	long long delta_exec;
-+	unsigned long vpages, max_cpu_ratio;
-+	unsigned long long start_time, end_time, scan_time;
-+	unsigned int expected_jiffies;
-+
-+	might_sleep();
-+
-+	vpages = 0;
-+
-+	start_time = task_sched_runtime(current);
-+	max_cpu_ratio = 0;
-+	mmsem_batch = 0;
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE;) {
-+		struct scan_rung *rung = &uksm_scan_ladder[i];
-+		unsigned long ratio;
-+		int busy_retry;
-+
-+		if (!rung->pages_to_scan) {
-+			i++;
-+			continue;
-+		}
-+
-+		if (!rung->vma_root.num) {
-+			rung->pages_to_scan = 0;
-+			i++;
-+			continue;
-+		}
-+
-+		ratio = rung_real_ratio(rung->cpu_ratio);
-+		if (ratio > max_cpu_ratio)
-+			max_cpu_ratio = ratio;
-+
-+		busy_retry = BUSY_RETRY;
-+		/*
-+		 * Do not consider rung_round_finished() here, just used up the
-+		 * rung->pages_to_scan quota.
-+		 */
-+		while (rung->pages_to_scan && rung->vma_root.num &&
-+		       likely(!freezing(current))) {
-+			int reset = 0;
-+
-+			slot = rung->current_scan;
-+
-+			BUG_ON(vma_fully_scanned(slot));
-+
-+			if (mmsem_batch)
-+				err = 0;
-+			else
-+				err = try_down_read_slot_mmap_sem(slot);
-+
-+			if (err == -ENOENT) {
-+rm_slot:
-+				rung_rm_slot(slot);
-+				continue;
-+			}
-+
-+			busy_mm = slot->mm;
-+
-+			if (err == -EBUSY) {
-+				/* skip other vmas on the same mm */
-+				do {
-+					reset = advance_current_scan(rung);
-+					iter = rung->current_scan;
-+					busy_retry--;
-+					if (iter->vma->vm_mm != busy_mm ||
-+					    !busy_retry || reset)
-+						break;
-+				} while (1);
-+
-+				if (iter->vma->vm_mm != busy_mm) {
-+					continue;
-+				} else {
-+					/* scan round finsished */
-+					break;
-+				}
-+			}
-+
-+			BUG_ON(!vma_can_enter(slot->vma));
-+			if (uksm_test_exit(slot->vma->vm_mm)) {
-+				mmsem_batch = 0;
-+				mmap_read_unlock(slot->vma->vm_mm);
-+				goto rm_slot;
-+			}
-+
-+			if (mmsem_batch)
-+				mmsem_batch--;
-+			else
-+				mmsem_batch = UKSM_MMSEM_BATCH;
-+
-+			/* Ok, we have take the mmap_sem, ready to scan */
-+			scan_vma_one_page(slot);
-+			rung->pages_to_scan--;
-+			vpages++;
-+
-+			if (rung->current_offset + rung->step > slot->pages - 1
-+			    || vma_fully_scanned(slot)) {
-+				mmap_read_unlock(slot->vma->vm_mm);
-+				judge_slot(slot);
-+				mmsem_batch = 0;
-+			} else {
-+				rung->current_offset += rung->step;
-+				if (!mmsem_batch)
-+					mmap_read_unlock(slot->vma->vm_mm);
-+			}
-+
-+			busy_retry = BUSY_RETRY;
-+			cond_resched();
-+		}
-+
-+		if (mmsem_batch) {
-+			mmap_read_unlock(slot->vma->vm_mm);
-+			mmsem_batch = 0;
-+		}
-+
-+		if (freezing(current))
-+			break;
-+
-+		cond_resched();
-+	}
-+	end_time = task_sched_runtime(current);
-+	delta_exec = end_time - start_time;
-+
-+	if (freezing(current))
-+		return;
-+
-+	cleanup_vma_slots();
-+	uksm_enter_all_slots();
-+
-+	round_finished = 1;
-+	all_rungs_emtpy = 1;
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		struct scan_rung *rung = &uksm_scan_ladder[i];
-+
-+		if (rung->vma_root.num) {
-+			all_rungs_emtpy = 0;
-+			if (!rung_round_finished(rung))
-+				round_finished = 0;
-+		}
-+	}
-+
-+	if (all_rungs_emtpy)
-+		round_finished = 0;
-+
-+	if (round_finished) {
-+		round_update_ladder();
-+		uksm_eval_round++;
-+
-+		if (hash_round_finished() && rshash_adjust()) {
-+			/* Reset the unstable root iff hash strength changed */
-+			uksm_hash_round++;
-+			root_unstable_tree = RB_ROOT;
-+			free_all_tree_nodes(&unstable_tree_node_list);
-+		}
-+
-+		/*
-+		 * A number of pages can hang around indefinitely on per-cpu
-+		 * pagevecs, raised page count preventing write_protect_page
-+		 * from merging them.  Though it doesn't really matter much,
-+		 * it is puzzling to see some stuck in pages_volatile until
-+		 * other activity jostles them out, and they also prevented
-+		 * LTP's KSM test from succeeding deterministically; so drain
-+		 * them here (here rather than on entry to uksm_do_scan(),
-+		 * so we don't IPI too often when pages_to_scan is set low).
-+		 */
-+		lru_add_drain_all();
-+	}
-+
-+
-+	if (vpages && delta_exec > 0) {
-+		pcost = (unsigned long) delta_exec / vpages;
-+		if (likely(uksm_ema_page_time))
-+			uksm_ema_page_time = ema(pcost, uksm_ema_page_time);
-+		else
-+			uksm_ema_page_time = pcost;
-+	}
-+
-+	uksm_calc_scan_pages();
-+	uksm_sleep_real = uksm_sleep_jiffies;
-+	/* in case of radical cpu bursts, apply the upper bound */
-+	end_time = task_sched_runtime(current);
-+	if (max_cpu_ratio && end_time > start_time) {
-+		scan_time = end_time - start_time;
-+		expected_jiffies = msecs_to_jiffies(
-+			scan_time_to_sleep(scan_time, max_cpu_ratio));
-+
-+		if (expected_jiffies > uksm_sleep_real)
-+			uksm_sleep_real = expected_jiffies;
-+
-+		/* We have a 1 second up bound for responsiveness. */
-+		if (jiffies_to_msecs(uksm_sleep_real) > MSEC_PER_SEC)
-+			uksm_sleep_real = msecs_to_jiffies(1000);
-+	}
-+
-+	return;
-+}
-+
-+static int ksmd_should_run(void)
-+{
-+	return uksm_run & UKSM_RUN_MERGE;
-+}
-+
-+static int uksm_scan_thread(void *nothing)
-+{
-+	set_freezable();
-+	set_user_nice(current, 5);
-+
-+	while (!kthread_should_stop()) {
-+		mutex_lock(&uksm_thread_mutex);
-+		if (ksmd_should_run())
-+			uksm_do_scan();
-+		mutex_unlock(&uksm_thread_mutex);
-+
-+		try_to_freeze();
-+
-+		if (ksmd_should_run()) {
-+			schedule_timeout_interruptible(uksm_sleep_real);
-+			uksm_sleep_times++;
-+		} else {
-+			wait_event_freezable(uksm_thread_wait,
-+				ksmd_should_run() || kthread_should_stop());
-+		}
-+	}
-+	return 0;
-+}
-+
-+void rmap_walk_ksm(struct page *page, struct rmap_walk_control *rwc)
-+{
-+	struct stable_node *stable_node;
-+	struct node_vma *node_vma;
-+	struct rmap_item *rmap_item;
-+	int search_new_forks = 0;
-+	unsigned long address;
-+
-+	VM_BUG_ON_PAGE(!PageKsm(page), page);
-+	VM_BUG_ON_PAGE(!PageLocked(page), page);
-+
-+	stable_node = page_stable_node(page);
-+	if (!stable_node)
-+		return;
-+again:
-+	hlist_for_each_entry(node_vma, &stable_node->hlist, hlist) {
-+		hlist_for_each_entry(rmap_item, &node_vma->rmap_hlist, hlist) {
-+			struct anon_vma *anon_vma = rmap_item->anon_vma;
-+			struct anon_vma_chain *vmac;
-+			struct vm_area_struct *vma;
-+
-+			cond_resched();
-+			anon_vma_lock_read(anon_vma);
-+			anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
-+						       0, ULONG_MAX) {
-+				cond_resched();
-+				vma = vmac->vma;
-+				address = get_rmap_addr(rmap_item);
-+
-+				if (address < vma->vm_start ||
-+				    address >= vma->vm_end)
-+					continue;
-+
-+				if ((rmap_item->slot->vma == vma) ==
-+				    search_new_forks)
-+					continue;
-+
-+				if (rwc->invalid_vma && rwc->invalid_vma(vma, rwc->arg))
-+					continue;
-+
-+				if (!rwc->rmap_one(page, vma, address, rwc->arg)) {
-+					anon_vma_unlock_read(anon_vma);
-+					return;
-+				}
-+
-+				if (rwc->done && rwc->done(page)) {
-+					anon_vma_unlock_read(anon_vma);
-+					return;
-+				}
-+			}
-+			anon_vma_unlock_read(anon_vma);
-+		}
-+	}
-+	if (!search_new_forks++)
-+		goto again;
-+}
-+
-+#ifdef CONFIG_MIGRATION
-+/* Common ksm interface but may be specific to uksm */
-+void ksm_migrate_page(struct page *newpage, struct page *oldpage)
-+{
-+	struct stable_node *stable_node;
-+
-+	VM_BUG_ON_PAGE(!PageLocked(oldpage), oldpage);
-+	VM_BUG_ON_PAGE(!PageLocked(newpage), newpage);
-+	VM_BUG_ON(newpage->mapping != oldpage->mapping);
-+
-+	stable_node = page_stable_node(newpage);
-+	if (stable_node) {
-+		VM_BUG_ON(stable_node->kpfn != page_to_pfn(oldpage));
-+		stable_node->kpfn = page_to_pfn(newpage);
-+		/*
-+		 * newpage->mapping was set in advance; now we need smp_wmb()
-+		 * to make sure that the new stable_node->kpfn is visible
-+		 * to get_ksm_page() before it can see that oldpage->mapping
-+		 * has gone stale (or that PageSwapCache has been cleared).
-+		 */
-+		smp_wmb();
-+		set_page_stable_node(oldpage, NULL);
-+	}
-+}
-+#endif /* CONFIG_MIGRATION */
-+
-+#ifdef CONFIG_MEMORY_HOTREMOVE
-+static struct stable_node *uksm_check_stable_tree(unsigned long start_pfn,
-+						 unsigned long end_pfn)
-+{
-+	struct rb_node *node;
-+
-+	for (node = rb_first(root_stable_treep); node; node = rb_next(node)) {
-+		struct stable_node *stable_node;
-+
-+		stable_node = rb_entry(node, struct stable_node, node);
-+		if (stable_node->kpfn >= start_pfn &&
-+		    stable_node->kpfn < end_pfn)
-+			return stable_node;
-+	}
-+	return NULL;
-+}
-+
-+static int uksm_memory_callback(struct notifier_block *self,
-+			       unsigned long action, void *arg)
-+{
-+	struct memory_notify *mn = arg;
-+	struct stable_node *stable_node;
-+
-+	switch (action) {
-+	case MEM_GOING_OFFLINE:
-+		/*
-+		 * Keep it very simple for now: just lock out ksmd and
-+		 * MADV_UNMERGEABLE while any memory is going offline.
-+		 * mutex_lock_nested() is necessary because lockdep was alarmed
-+		 * that here we take uksm_thread_mutex inside notifier chain
-+		 * mutex, and later take notifier chain mutex inside
-+		 * uksm_thread_mutex to unlock it.   But that's safe because both
-+		 * are inside mem_hotplug_mutex.
-+		 */
-+		mutex_lock_nested(&uksm_thread_mutex, SINGLE_DEPTH_NESTING);
-+		break;
-+
-+	case MEM_OFFLINE:
-+		/*
-+		 * Most of the work is done by page migration; but there might
-+		 * be a few stable_nodes left over, still pointing to struct
-+		 * pages which have been offlined: prune those from the tree.
-+		 */
-+		while ((stable_node = uksm_check_stable_tree(mn->start_pfn,
-+					mn->start_pfn + mn->nr_pages)) != NULL)
-+			remove_node_from_stable_tree(stable_node, 1, 1);
-+		/* fallthrough */
-+
-+	case MEM_CANCEL_OFFLINE:
-+		mutex_unlock(&uksm_thread_mutex);
-+		break;
-+	}
-+	return NOTIFY_OK;
-+}
-+#endif /* CONFIG_MEMORY_HOTREMOVE */
-+
-+#ifdef CONFIG_SYSFS
-+/*
-+ * This all compiles without CONFIG_SYSFS, but is a waste of space.
-+ */
-+
-+#define UKSM_ATTR_RO(_name) \
-+	static struct kobj_attribute _name##_attr = __ATTR_RO(_name)
-+#define UKSM_ATTR(_name) \
-+	static struct kobj_attribute _name##_attr = \
-+		__ATTR(_name, 0644, _name##_show, _name##_store)
-+
-+static ssize_t max_cpu_percentage_show(struct kobject *kobj,
-+				    struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%u\n", uksm_max_cpu_percentage);
-+}
-+
-+static ssize_t max_cpu_percentage_store(struct kobject *kobj,
-+				     struct kobj_attribute *attr,
-+				     const char *buf, size_t count)
-+{
-+	unsigned long max_cpu_percentage;
-+	int err;
-+
-+	err = kstrtoul(buf, 10, &max_cpu_percentage);
-+	if (err || max_cpu_percentage > 100)
-+		return -EINVAL;
-+
-+	if (max_cpu_percentage == 100)
-+		max_cpu_percentage = 99;
-+	else if (max_cpu_percentage < 10)
-+		max_cpu_percentage = 10;
-+
-+	uksm_max_cpu_percentage = max_cpu_percentage;
-+
-+	return count;
-+}
-+UKSM_ATTR(max_cpu_percentage);
-+
-+static ssize_t sleep_millisecs_show(struct kobject *kobj,
-+				    struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%u\n", jiffies_to_msecs(uksm_sleep_jiffies));
-+}
-+
-+static ssize_t sleep_millisecs_store(struct kobject *kobj,
-+				     struct kobj_attribute *attr,
-+				     const char *buf, size_t count)
-+{
-+	unsigned long msecs;
-+	int err;
-+
-+	err = kstrtoul(buf, 10, &msecs);
-+	if (err || msecs > MSEC_PER_SEC)
-+		return -EINVAL;
-+
-+	uksm_sleep_jiffies = msecs_to_jiffies(msecs);
-+	uksm_sleep_saved = uksm_sleep_jiffies;
-+
-+	return count;
-+}
-+UKSM_ATTR(sleep_millisecs);
-+
-+
-+static ssize_t cpu_governor_show(struct kobject *kobj,
-+				  struct kobj_attribute *attr, char *buf)
-+{
-+	int n = sizeof(uksm_cpu_governor_str) / sizeof(char *);
-+	int i;
-+
-+	buf[0] = '\0';
-+	for (i = 0; i < n ; i++) {
-+		if (uksm_cpu_governor == i)
-+			strcat(buf, "[");
-+
-+		strcat(buf, uksm_cpu_governor_str[i]);
-+
-+		if (uksm_cpu_governor == i)
-+			strcat(buf, "]");
-+
-+		strcat(buf, " ");
-+	}
-+	strcat(buf, "\n");
-+
-+	return strlen(buf);
-+}
-+
-+static inline void init_performance_values(void)
-+{
-+	int i;
-+	struct scan_rung *rung;
-+	struct uksm_cpu_preset_s *preset = uksm_cpu_preset + uksm_cpu_governor;
-+
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		rung = uksm_scan_ladder + i;
-+		rung->cpu_ratio = preset->cpu_ratio[i];
-+		rung->cover_msecs = preset->cover_msecs[i];
-+	}
-+
-+	uksm_max_cpu_percentage = preset->max_cpu;
-+}
-+
-+static ssize_t cpu_governor_store(struct kobject *kobj,
-+				   struct kobj_attribute *attr,
-+				   const char *buf, size_t count)
-+{
-+	int n = sizeof(uksm_cpu_governor_str) / sizeof(char *);
-+
-+	for (n--; n >= 0 ; n--) {
-+		if (!strncmp(buf, uksm_cpu_governor_str[n],
-+			     strlen(uksm_cpu_governor_str[n])))
-+			break;
-+	}
-+
-+	if (n < 0)
-+		return -EINVAL;
-+	else
-+		uksm_cpu_governor = n;
-+
-+	init_performance_values();
-+
-+	return count;
-+}
-+UKSM_ATTR(cpu_governor);
-+
-+static ssize_t run_show(struct kobject *kobj, struct kobj_attribute *attr,
-+			char *buf)
-+{
-+	return sprintf(buf, "%u\n", uksm_run);
-+}
-+
-+static ssize_t run_store(struct kobject *kobj, struct kobj_attribute *attr,
-+			 const char *buf, size_t count)
-+{
-+	int err;
-+	unsigned long flags;
-+
-+	err = kstrtoul(buf, 10, &flags);
-+	if (err || flags > UINT_MAX)
-+		return -EINVAL;
-+	if (flags > UKSM_RUN_MERGE)
-+		return -EINVAL;
-+
-+	mutex_lock(&uksm_thread_mutex);
-+	if (uksm_run != flags)
-+		uksm_run = flags;
-+	mutex_unlock(&uksm_thread_mutex);
-+
-+	if (flags & UKSM_RUN_MERGE)
-+		wake_up_interruptible(&uksm_thread_wait);
-+
-+	return count;
-+}
-+UKSM_ATTR(run);
-+
-+static ssize_t abundant_threshold_show(struct kobject *kobj,
-+				     struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%u\n", uksm_abundant_threshold);
-+}
-+
-+static ssize_t abundant_threshold_store(struct kobject *kobj,
-+				      struct kobj_attribute *attr,
-+				      const char *buf, size_t count)
-+{
-+	int err;
-+	unsigned long flags;
-+
-+	err = kstrtoul(buf, 10, &flags);
-+	if (err || flags > 99)
-+		return -EINVAL;
-+
-+	uksm_abundant_threshold = flags;
-+
-+	return count;
-+}
-+UKSM_ATTR(abundant_threshold);
-+
-+static ssize_t thrash_threshold_show(struct kobject *kobj,
-+				     struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%u\n", uksm_thrash_threshold);
-+}
-+
-+static ssize_t thrash_threshold_store(struct kobject *kobj,
-+				      struct kobj_attribute *attr,
-+				      const char *buf, size_t count)
-+{
-+	int err;
-+	unsigned long flags;
-+
-+	err = kstrtoul(buf, 10, &flags);
-+	if (err || flags > 99)
-+		return -EINVAL;
-+
-+	uksm_thrash_threshold = flags;
-+
-+	return count;
-+}
-+UKSM_ATTR(thrash_threshold);
-+
-+static ssize_t cpu_ratios_show(struct kobject *kobj,
-+			       struct kobj_attribute *attr, char *buf)
-+{
-+	int i, size;
-+	struct scan_rung *rung;
-+	char *p = buf;
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		rung = &uksm_scan_ladder[i];
-+
-+		if (rung->cpu_ratio > 0)
-+			size = sprintf(p, "%d ", rung->cpu_ratio);
-+		else
-+			size = sprintf(p, "MAX/%d ",
-+					TIME_RATIO_SCALE / -rung->cpu_ratio);
-+
-+		p += size;
-+	}
-+
-+	*p++ = '\n';
-+	*p = '\0';
-+
-+	return p - buf;
-+}
-+
-+static ssize_t cpu_ratios_store(struct kobject *kobj,
-+				      struct kobj_attribute *attr,
-+				      const char *buf, size_t count)
-+{
-+	int i, cpuratios[SCAN_LADDER_SIZE], err;
-+	unsigned long value;
-+	struct scan_rung *rung;
-+	char *p, *end = NULL;
-+
-+	p = kzalloc(count, GFP_KERNEL);
-+	if (!p)
-+		return -ENOMEM;
-+
-+	memcpy(p, buf, count);
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		if (i != SCAN_LADDER_SIZE - 1) {
-+			end = strchr(p, ' ');
-+			if (!end)
-+				return -EINVAL;
-+
-+			*end = '\0';
-+		}
-+
-+		if (strstr(p, "MAX/")) {
-+			p = strchr(p, '/') + 1;
-+			err = kstrtoul(p, 10, &value);
-+			if (err || value > TIME_RATIO_SCALE || !value)
-+				return -EINVAL;
-+
-+			cpuratios[i] = -(int) (TIME_RATIO_SCALE / value);
-+		} else {
-+			err = kstrtoul(p, 10, &value);
-+			if (err || value > TIME_RATIO_SCALE || !value)
-+				return -EINVAL;
-+
-+			cpuratios[i] = value;
-+		}
-+
-+		p = end + 1;
-+	}
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		rung = &uksm_scan_ladder[i];
-+
-+		rung->cpu_ratio = cpuratios[i];
-+	}
-+
-+	return count;
-+}
-+UKSM_ATTR(cpu_ratios);
-+
-+static ssize_t eval_intervals_show(struct kobject *kobj,
-+			       struct kobj_attribute *attr, char *buf)
-+{
-+	int i, size;
-+	struct scan_rung *rung;
-+	char *p = buf;
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		rung = &uksm_scan_ladder[i];
-+		size = sprintf(p, "%u ", rung->cover_msecs);
-+		p += size;
-+	}
-+
-+	*p++ = '\n';
-+	*p = '\0';
-+
-+	return p - buf;
-+}
-+
-+static ssize_t eval_intervals_store(struct kobject *kobj,
-+				      struct kobj_attribute *attr,
-+				      const char *buf, size_t count)
-+{
-+	int i, err;
-+	unsigned long values[SCAN_LADDER_SIZE];
-+	struct scan_rung *rung;
-+	char *p, *end = NULL;
-+	ssize_t ret = count;
-+
-+	p = kzalloc(count + 2, GFP_KERNEL);
-+	if (!p)
-+		return -ENOMEM;
-+
-+	memcpy(p, buf, count);
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		if (i != SCAN_LADDER_SIZE - 1) {
-+			end = strchr(p, ' ');
-+			if (!end) {
-+				ret = -EINVAL;
-+				goto out;
-+			}
-+
-+			*end = '\0';
-+		}
-+
-+		err = kstrtoul(p, 10, &values[i]);
-+		if (err) {
-+			ret = -EINVAL;
-+			goto out;
-+		}
-+
-+		p = end + 1;
-+	}
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		rung = &uksm_scan_ladder[i];
-+
-+		rung->cover_msecs = values[i];
-+	}
-+
-+out:
-+	kfree(p);
-+	return ret;
-+}
-+UKSM_ATTR(eval_intervals);
-+
-+static ssize_t ema_per_page_time_show(struct kobject *kobj,
-+				 struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%lu\n", uksm_ema_page_time);
-+}
-+UKSM_ATTR_RO(ema_per_page_time);
-+
-+static ssize_t pages_shared_show(struct kobject *kobj,
-+				 struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%lu\n", uksm_pages_shared);
-+}
-+UKSM_ATTR_RO(pages_shared);
-+
-+static ssize_t pages_sharing_show(struct kobject *kobj,
-+				  struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%lu\n", uksm_pages_sharing);
-+}
-+UKSM_ATTR_RO(pages_sharing);
-+
-+static ssize_t pages_unshared_show(struct kobject *kobj,
-+				   struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%lu\n", uksm_pages_unshared);
-+}
-+UKSM_ATTR_RO(pages_unshared);
-+
-+static ssize_t full_scans_show(struct kobject *kobj,
-+			       struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%llu\n", fully_scanned_round);
-+}
-+UKSM_ATTR_RO(full_scans);
-+
-+static ssize_t pages_scanned_show(struct kobject *kobj,
-+				  struct kobj_attribute *attr, char *buf)
-+{
-+	unsigned long base = 0;
-+	u64 delta, ret;
-+
-+	if (pages_scanned_stored) {
-+		base = pages_scanned_base;
-+		ret = pages_scanned_stored;
-+		delta = uksm_pages_scanned >> base;
-+		if (CAN_OVERFLOW_U64(ret, delta)) {
-+			ret >>= 1;
-+			delta >>= 1;
-+			base++;
-+			ret += delta;
-+		}
-+	} else {
-+		ret = uksm_pages_scanned;
-+	}
-+
-+	while (ret > ULONG_MAX) {
-+		ret >>= 1;
-+		base++;
-+	}
-+
-+	if (base)
-+		return sprintf(buf, "%lu * 2^%lu\n", (unsigned long)ret, base);
-+	else
-+		return sprintf(buf, "%lu\n", (unsigned long)ret);
-+}
-+UKSM_ATTR_RO(pages_scanned);
-+
-+static ssize_t hash_strength_show(struct kobject *kobj,
-+				  struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%lu\n", hash_strength);
-+}
-+UKSM_ATTR_RO(hash_strength);
-+
-+static ssize_t sleep_times_show(struct kobject *kobj,
-+				  struct kobj_attribute *attr, char *buf)
-+{
-+	return sprintf(buf, "%llu\n", uksm_sleep_times);
-+}
-+UKSM_ATTR_RO(sleep_times);
-+
-+
-+static struct attribute *uksm_attrs[] = {
-+	&max_cpu_percentage_attr.attr,
-+	&sleep_millisecs_attr.attr,
-+	&cpu_governor_attr.attr,
-+	&run_attr.attr,
-+	&ema_per_page_time_attr.attr,
-+	&pages_shared_attr.attr,
-+	&pages_sharing_attr.attr,
-+	&pages_unshared_attr.attr,
-+	&full_scans_attr.attr,
-+	&pages_scanned_attr.attr,
-+	&hash_strength_attr.attr,
-+	&sleep_times_attr.attr,
-+	&thrash_threshold_attr.attr,
-+	&abundant_threshold_attr.attr,
-+	&cpu_ratios_attr.attr,
-+	&eval_intervals_attr.attr,
-+	NULL,
-+};
-+
-+static struct attribute_group uksm_attr_group = {
-+	.attrs = uksm_attrs,
-+	.name = "uksm",
-+};
-+#endif /* CONFIG_SYSFS */
-+
-+static inline void init_scan_ladder(void)
-+{
-+	int i;
-+	struct scan_rung *rung;
-+
-+	for (i = 0; i < SCAN_LADDER_SIZE; i++) {
-+		rung = uksm_scan_ladder + i;
-+		slot_tree_init_root(&rung->vma_root);
-+	}
-+
-+	init_performance_values();
-+	uksm_calc_scan_pages();
-+}
-+
-+static inline int cal_positive_negative_costs(void)
-+{
-+	struct page *p1, *p2;
-+	unsigned char *addr1, *addr2;
-+	unsigned long i, time_start, hash_cost;
-+	unsigned long loopnum = 0;
-+
-+	/*IMPORTANT: volatile is needed to prevent over-optimization by gcc. */
-+	volatile u32 hash;
-+	volatile int ret;
-+
-+	p1 = alloc_page(GFP_KERNEL);
-+	if (!p1)
-+		return -ENOMEM;
-+
-+	p2 = alloc_page(GFP_KERNEL);
-+	if (!p2)
-+		return -ENOMEM;
-+
-+	addr1 = kmap_atomic(p1);
-+	addr2 = kmap_atomic(p2);
-+	memset(addr1, prandom_u32(), PAGE_SIZE);
-+	memcpy(addr2, addr1, PAGE_SIZE);
-+
-+	/* make sure that the two pages differ in last byte */
-+	addr2[PAGE_SIZE-1] = ~addr2[PAGE_SIZE-1];
-+	kunmap_atomic(addr2);
-+	kunmap_atomic(addr1);
-+
-+	time_start = jiffies;
-+	while (jiffies - time_start < 100) {
-+		for (i = 0; i < 100; i++)
-+			hash = page_hash(p1, HASH_STRENGTH_FULL, 0);
-+		loopnum += 100;
-+	}
-+	hash_cost = (jiffies - time_start);
-+
-+	time_start = jiffies;
-+	for (i = 0; i < loopnum; i++)
-+		ret = pages_identical_with_cost(p1, p2);
-+	memcmp_cost = HASH_STRENGTH_FULL * (jiffies - time_start);
-+	memcmp_cost /= hash_cost;
-+	pr_info("UKSM: relative memcmp_cost = %lu "
-+		"hash=%u cmp_ret=%d.\n",
-+		memcmp_cost, hash, ret);
-+
-+	__free_page(p1);
-+	__free_page(p2);
-+	return 0;
-+}
-+
-+static int init_zeropage_hash_table(void)
-+{
-+	struct page *page;
-+	char *addr;
-+	int i;
-+
-+	page = alloc_page(GFP_KERNEL);
-+	if (!page)
-+		return -ENOMEM;
-+
-+	addr = kmap_atomic(page);
-+	memset(addr, 0, PAGE_SIZE);
-+	kunmap_atomic(addr);
-+
-+	zero_hash_table = kmalloc_array(HASH_STRENGTH_MAX, sizeof(u32),
-+		GFP_KERNEL);
-+	if (!zero_hash_table)
-+		return -ENOMEM;
-+
-+	for (i = 0; i < HASH_STRENGTH_MAX; i++)
-+		zero_hash_table[i] = page_hash(page, i, 0);
-+
-+	__free_page(page);
-+
-+	return 0;
-+}
-+
-+static inline int init_random_sampling(void)
-+{
-+	unsigned long i;
-+
-+	random_nums = kmalloc(PAGE_SIZE, GFP_KERNEL);
-+	if (!random_nums)
-+		return -ENOMEM;
-+
-+	for (i = 0; i < HASH_STRENGTH_FULL; i++)
-+		random_nums[i] = i;
-+
-+	for (i = 0; i < HASH_STRENGTH_FULL; i++) {
-+		unsigned long rand_range, swap_index, tmp;
-+
-+		rand_range = HASH_STRENGTH_FULL - i;
-+		swap_index = i + prandom_u32() % rand_range;
-+		tmp = random_nums[i];
-+		random_nums[i] =  random_nums[swap_index];
-+		random_nums[swap_index] = tmp;
-+	}
-+
-+	rshash_state.state = RSHASH_NEW;
-+	rshash_state.below_count = 0;
-+	rshash_state.lookup_window_index = 0;
-+
-+	return cal_positive_negative_costs();
-+}
-+
-+static int __init uksm_slab_init(void)
-+{
-+	rmap_item_cache = UKSM_KMEM_CACHE(rmap_item, 0);
-+	if (!rmap_item_cache)
-+		goto out;
-+
-+	stable_node_cache = UKSM_KMEM_CACHE(stable_node, 0);
-+	if (!stable_node_cache)
-+		goto out_free1;
-+
-+	node_vma_cache = UKSM_KMEM_CACHE(node_vma, 0);
-+	if (!node_vma_cache)
-+		goto out_free2;
-+
-+	vma_slot_cache = UKSM_KMEM_CACHE(vma_slot, 0);
-+	if (!vma_slot_cache)
-+		goto out_free3;
-+
-+	tree_node_cache = UKSM_KMEM_CACHE(tree_node, 0);
-+	if (!tree_node_cache)
-+		goto out_free4;
-+
-+	return 0;
-+
-+out_free4:
-+	kmem_cache_destroy(vma_slot_cache);
-+out_free3:
-+	kmem_cache_destroy(node_vma_cache);
-+out_free2:
-+	kmem_cache_destroy(stable_node_cache);
-+out_free1:
-+	kmem_cache_destroy(rmap_item_cache);
-+out:
-+	return -ENOMEM;
-+}
-+
-+static void __init uksm_slab_free(void)
-+{
-+	kmem_cache_destroy(stable_node_cache);
-+	kmem_cache_destroy(rmap_item_cache);
-+	kmem_cache_destroy(node_vma_cache);
-+	kmem_cache_destroy(vma_slot_cache);
-+	kmem_cache_destroy(tree_node_cache);
-+}
-+
-+/* Common interface to ksm, different to it. */
-+int ksm_madvise(struct vm_area_struct *vma, unsigned long start,
-+		unsigned long end, int advice, unsigned long *vm_flags)
-+{
-+	int err;
-+
-+	switch (advice) {
-+	case MADV_MERGEABLE:
-+		return 0;		/* just ignore the advice */
-+
-+	case MADV_UNMERGEABLE:
-+		if (!(*vm_flags & VM_MERGEABLE) || !uksm_flags_can_scan(*vm_flags))
-+			return 0;		/* just ignore the advice */
-+
-+		if (vma->anon_vma) {
-+			err = unmerge_uksm_pages(vma, start, end);
-+			if (err)
-+				return err;
-+		}
-+
-+		uksm_remove_vma(vma);
-+		*vm_flags &= ~VM_MERGEABLE;
-+		break;
-+	}
-+
-+	return 0;
-+}
-+
-+/* Common interface to ksm, actually the same. */
-+struct page *ksm_might_need_to_copy(struct page *page,
-+			struct vm_area_struct *vma, unsigned long address)
-+{
-+	struct anon_vma *anon_vma = page_anon_vma(page);
-+	struct page *new_page;
-+
-+	if (PageKsm(page)) {
-+		if (page_stable_node(page))
-+			return page;	/* no need to copy it */
-+	} else if (!anon_vma) {
-+		return page;		/* no need to copy it */
-+	} else if (anon_vma->root == vma->anon_vma->root &&
-+		 page->index == linear_page_index(vma, address)) {
-+		return page;		/* still no need to copy it */
-+	}
-+	if (!PageUptodate(page))
-+		return page;		/* let do_swap_page report the error */
-+
-+	new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, address);
-+	if (new_page) {
-+		copy_user_highpage(new_page, page, address, vma);
-+
-+		SetPageDirty(new_page);
-+		__SetPageUptodate(new_page);
-+		__SetPageLocked(new_page);
-+	}
-+
-+	return new_page;
-+}
-+
-+/* Copied from mm/ksm.c and required from 5.1 */
-+bool reuse_ksm_page(struct page *page,
-+		    struct vm_area_struct *vma,
-+		    unsigned long address)
-+{
-+#ifdef CONFIG_DEBUG_VM
-+	if (WARN_ON(is_zero_pfn(page_to_pfn(page))) ||
-+			WARN_ON(!page_mapped(page)) ||
-+			WARN_ON(!PageLocked(page))) {
-+		dump_page(page, "reuse_ksm_page");
-+		return false;
-+	}
-+#endif
-+
-+	if (PageSwapCache(page) || !page_stable_node(page))
-+		return false;
-+	/* Prohibit parallel get_ksm_page() */
-+	if (!page_ref_freeze(page, 1))
-+		return false;
-+
-+	page_move_anon_rmap(page, vma);
-+	page->index = linear_page_index(vma, address);
-+	page_ref_unfreeze(page, 1);
-+
-+	return true;
-+}
-+
-+static int __init uksm_init(void)
-+{
-+	struct task_struct *uksm_thread;
-+	int err;
-+
-+	uksm_sleep_jiffies = msecs_to_jiffies(100);
-+	uksm_sleep_saved = uksm_sleep_jiffies;
-+
-+	slot_tree_init();
-+	init_scan_ladder();
-+
-+
-+	err = init_random_sampling();
-+	if (err)
-+		goto out_free2;
-+
-+	err = uksm_slab_init();
-+	if (err)
-+		goto out_free1;
-+
-+	err = init_zeropage_hash_table();
-+	if (err)
-+		goto out_free0;
-+
-+	uksm_thread = kthread_run(uksm_scan_thread, NULL, "uksmd");
-+	if (IS_ERR(uksm_thread)) {
-+		pr_err("uksm: creating kthread failed\n");
-+		err = PTR_ERR(uksm_thread);
-+		goto out_free;
-+	}
-+
-+#ifdef CONFIG_SYSFS
-+	err = sysfs_create_group(mm_kobj, &uksm_attr_group);
-+	if (err) {
-+		pr_err("uksm: register sysfs failed\n");
-+		kthread_stop(uksm_thread);
-+		goto out_free;
-+	}
-+#else
-+	uksm_run = UKSM_RUN_MERGE;	/* no way for user to start it */
-+
-+#endif /* CONFIG_SYSFS */
-+
-+#ifdef CONFIG_MEMORY_HOTREMOVE
-+	/*
-+	 * Choose a high priority since the callback takes uksm_thread_mutex:
-+	 * later callbacks could only be taking locks which nest within that.
-+	 */
-+	hotplug_memory_notifier(uksm_memory_callback, 100);
-+#endif
-+	return 0;
-+
-+out_free:
-+	kfree(zero_hash_table);
-+out_free0:
-+	uksm_slab_free();
-+out_free1:
-+	kfree(random_nums);
-+out_free2:
-+	kfree(uksm_scan_ladder);
-+	return err;
-+}
-+
-+#ifdef MODULE
-+subsys_initcall(ksm_init);
-+#else
-+late_initcall(uksm_init);
-+#endif
-+
-diff --git a/mm/vmstat.c b/mm/vmstat.c
-index f8942160f..95d6d9267 100644
---- a/mm/vmstat.c
-+++ b/mm/vmstat.c
-@@ -1216,6 +1216,9 @@ const char * const vmstat_text[] = {
- #endif
- 	"nr_page_table_pages",
- 
-+#ifdef CONFIG_UKSM
-+	"nr_uksm_zero_pages",
-+#endif
- 	/* enum writeback_stat_item counters */
- 	"nr_dirty_threshold",
- 	"nr_dirty_background_threshold",
--- 
-2.30.1.457.gf011795891
-
diff --git a/0004-DISABLEAUDIT.patch b/0004-DISABLEAUDIT.patch
deleted file mode 100644
index 6abf21607912..000000000000
--- a/0004-DISABLEAUDIT.patch
+++ /dev/null
@@ -1,78 +0,0 @@
---- a/.config	2021-04-16 00:11:30.430626876 +0800
-+++ b/.config	2021-04-16 00:13:01.212632338 +0800
-@@ -48,9 +48,8 @@ CONFIG_POSIX_MQUEUE_SYSCTL=y
- CONFIG_WATCH_QUEUE=y
- CONFIG_CROSS_MEMORY_ATTACH=y
- CONFIG_USELIB=y
--CONFIG_AUDIT=y
-+# CONFIG_AUDIT is not set
- CONFIG_HAVE_ARCH_AUDITSYSCALL=y
--CONFIG_AUDITSYSCALL=y
- 
- #
- # IRQ subsystem
-@@ -1351,7 +1350,6 @@ CONFIG_NETFILTER_XT_SET=m
- #
- # Xtables targets
- #
--CONFIG_NETFILTER_XT_TARGET_AUDIT=m
- CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
- CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
- CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
-@@ -10187,21 +10185,12 @@ CONFIG_SECURITY_INFINIBAND=y
- CONFIG_SECURITY_NETWORK_XFRM=y
- CONFIG_SECURITY_PATH=y
- CONFIG_INTEL_TXT=y
--CONFIG_LSM_MMAP_MIN_ADDR=0
- CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
- CONFIG_HARDENED_USERCOPY=y
- CONFIG_HARDENED_USERCOPY_FALLBACK=y
- # CONFIG_HARDENED_USERCOPY_PAGESPAN is not set
- CONFIG_FORTIFY_SOURCE=y
- # CONFIG_STATIC_USERMODEHELPER is not set
--CONFIG_SECURITY_SELINUX=y
--CONFIG_SECURITY_SELINUX_BOOTPARAM=y
--# CONFIG_SECURITY_SELINUX_DISABLE is not set
--CONFIG_SECURITY_SELINUX_DEVELOP=y
--CONFIG_SECURITY_SELINUX_AVC_STATS=y
--CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE=1
--CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS=9
--CONFIG_SECURITY_SELINUX_SID2STR_CACHE_SIZE=256
- CONFIG_SECURITY_SMACK=y
- # CONFIG_SECURITY_SMACK_BRINGUP is not set
- CONFIG_SECURITY_SMACK_NETFILTER=y
-@@ -10213,10 +10202,7 @@ CONFIG_SECURITY_TOMOYO_MAX_AUDIT_LOG=102
- CONFIG_SECURITY_TOMOYO_POLICY_LOADER="/sbin/tomoyo-init"
- CONFIG_SECURITY_TOMOYO_ACTIVATION_TRIGGER="/sbin/init"
- # CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING is not set
--CONFIG_SECURITY_APPARMOR=y
--CONFIG_SECURITY_APPARMOR_HASH=y
--CONFIG_SECURITY_APPARMOR_HASH_DEFAULT=y
--# CONFIG_SECURITY_APPARMOR_DEBUG is not set
-+# CONFIG_SECURITY_APPARMOR is not set
- # CONFIG_SECURITY_LOADPIN is not set
- CONFIG_SECURITY_YAMA=y
- CONFIG_SECURITY_SAFESETID=y
-@@ -10231,10 +10217,8 @@ CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
- CONFIG_INTEGRITY_TRUSTED_KEYRING=y
- CONFIG_INTEGRITY_PLATFORM_KEYRING=y
- CONFIG_LOAD_UEFI_KEYS=y
--CONFIG_INTEGRITY_AUDIT=y
- CONFIG_IMA=y
- CONFIG_IMA_MEASURE_PCR_IDX=10
--CONFIG_IMA_LSM_RULES=y
- # CONFIG_IMA_TEMPLATE is not set
- CONFIG_IMA_NG_TEMPLATE=y
- # CONFIG_IMA_SIG_TEMPLATE is not set
-@@ -10262,10 +10246,8 @@ CONFIG_EVM_ATTR_FSUUID=y
- CONFIG_EVM_EXTRA_SMACK_XATTRS=y
- CONFIG_EVM_ADD_XATTRS=y
- # CONFIG_EVM_LOAD_X509 is not set
--# CONFIG_DEFAULT_SECURITY_SELINUX is not set
--# CONFIG_DEFAULT_SECURITY_SMACK is not set
-+CONFIG_DEFAULT_SECURITY_SMACK=y
- # CONFIG_DEFAULT_SECURITY_TOMOYO is not set
--CONFIG_DEFAULT_SECURITY_APPARMOR=y
- # CONFIG_DEFAULT_SECURITY_DAC is not set
- CONFIG_LSM="lockdown,yama,integrity,apparmor"
- 
diff --git a/PKGBUILD b/PKGBUILD
index 5c8cf1ebb540..d011c2cdd3db 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,4 +1,5 @@
-# Maintainer: zhullyb <zhullyb@outlook.com>
+# Maintainer : antman666 <945360554@qq.com>
+# Contributor: zhullyb <zhullyb@outlook.com>
 # Contributor: Yeqin Su <hougelangley1987@gmail.com>
 # Contributor: Torge Matthies <openglfreak at googlemail dot com>
 # Contributor: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
@@ -8,7 +9,7 @@
 # Contributor: Joan Figueras <ffigue at gmail dot com>
 
 ##
-## 这个包默认就会安装内核头文件和内核了，不需要纠结
+## This package include headers by default
 ## The following variables can be customized at build time. Use env or export to change at your wish
 ##
 ##   Example: env _microarchitecture=25 use_numa=n use_tracers=n use_pds=n makepkg -sc
@@ -17,7 +18,7 @@
 ## Valid numbers between: 0 to 42
 ## Default is: 0 => generic
 ## Good option if your package is for one machine: 42 => native
-## 我个人的恶趣味，就是选择 native，自动优化，当然各位根据自己的实际情况做出选择也是可以的
+## I choose native to let it optimization itself, you can change it by yourself
 if [ -z ${_microarchitecture+x} ]; then
   _microarchitecture=0
 fi
@@ -26,7 +27,7 @@ fi
 ## Archlinux and Xanmod enable it by default.
 ## Set variable "use_numa" to: n to disable (possibly increase performance)
 ##                             y to enable  (stock default)
-## 这里保持默认就好，我没有发现有什么独特的地方
+## Here keep default is ok
 if [ -z ${use_numa+x} ]; then
   use_numa=y
 fi
@@ -35,7 +36,7 @@ fi
 ## Stock Archlinux and Xanmod have this enabled. 
 ## Set variable "use_tracers" to: n to disable (possibly increase performance)
 ##                                y to enable  (stock default)
-## 我觉得默认关掉会好些，个人观点
+## I think close this is better
 if [ -z ${use_tracers+x} ]; then
   use_tracers=n
 fi
@@ -48,23 +49,20 @@ fi
 # This PKGBUILD read the database kept if it exists
 #
 # More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed-db
-# 不知道大家是否了解 module_db 它类似会检测你的系统平时经常用的模块，这样将来可以给出建议到 .config
-# 编译极简化的内核。
 if [ -z ${_localmodcfg} ]; then
   _localmodcfg=n
 fi
 
 # Tweak kernel options prior to a build via nconfig
-# 我觉得还是选上，这样给大家微调的空间
 #_makenconfig=y
 
 ### IMPORTANT: Do no edit below this line unless you know what you're doing
 
 pkgbase=linux-xanmod-cacule-uksm-cjktty
-pkgver=5.12.3
-_major=5.12
+pkgver=5.13.0
+_major=5.13
 _branch=5.x
-xanmod=1
+xanmod=2
 pkgrel=${xanmod}
 pkgdesc='Linux Xanmod. Branch with Cacule scheduler by Hamad Marri'
 url="http://www.xanmod.org/"
@@ -77,13 +75,14 @@ makedepends=(
 options=('!strip')
 _srcname="linux-${pkgver}-xanmod${xanmod}"
 
-source=("https://cdn.kernel.org/pub/linux/kernel/v${_branch}/linux-${_major}.tar."{xz,sign}
+source=("https://cdn.kernel.org/pub/linux/kernel/v${_branch}/linux-${pkgver}.tar."{xz,sign}
+        #config
         "https://github.com/xanmod/linux/releases/download/${pkgver}-xanmod${xanmod}-cacule/patch-${pkgver}-xanmod${xanmod}-cacule.xz"
         choose-gcc-optimization.sh
-        'sphinx-workaround.patch'
-        '0002-UKSM.patch'
-        "0003-CJKTTY.patch::https://raw.githubusercontent.com/zhmars/cjktty-patches/master/v5.x/cjktty-${_major}.patch"
-        '0004-DISABLEAUDIT.patch')
+        sphinx-workaround.patch
+        "0001-cjktty.patch::https://raw.githubusercontent.com/zhmars/cjktty-patches/master/v${_branch}/cjktty-${_major}.patch"
+        "0002-UKSM.patch::https://gitlab.com/sirlucjan/kernel-patches/-/raw/master/5.13/uksm-patches/0001-UKSM-for-5.13.patch"
+        "0003-btrfs.patch::https://gitlab.com/sirlucjan/kernel-patches/-/raw/master/5.13/btrfs-patches/0001-btrfs-patches.patch")
 validpgpkeys=(
     'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linux Torvalds
     '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
@@ -95,23 +94,25 @@ for _patch in $_commits; do
     source+=("${_patch}.patch::https://git.archlinux.org/linux.git/patch/?id=${_patch}")
 done
 
-sha256sums=('7d0df6f2bf2384d68d0bd8e1fe3e071d64364dcdc6002e7b5c87c92d48fac366'
-            '39045607567d69f84424b224e4fa6bf8f97a21a06ac9d6396acab16a18c4bcd3'
-            'SKIP'
-            'e840e41f0f91108f63fd6e085c93b02daa78729268bc31be7be7fb355203e38a'
-            '74339b8ad0ad99f08606c5de0dd3c38f502e29e5c6a78d6efbe656662edb8d73'
-            'f00a84fd382d63cd0d47d6fd8ef6c8608b1c83ff9d6dbdd32cb985898afbbf58'
-            'a29a24e9ceaf0d18f56c826331e2ce993b621a90c3ad18f449c44efd5b2e84d1'
-            '2264a33da476a51a844d09fa3bb13a41e8cf9f924258caffddf62a5a3857bba9')
+b2sums=('9c4c12e2394dec064adff51f7ccdf389192eb27ba7906db5eda543afe3d04afca6b9ea0848a057571bf2534eeb98e1e3a67734deff82c0d3731be205ad995668'
+        'SKIP'
+        #'SKIP'
+        'b5342310408354006a2e637a08bee0beb5e653e771f2124197cf403b9ece56d96dfb0b0732311e2b6010df7933561fdf31b980f25d27b2e8326382a2428ed96d'
+        '2f0d5ddc9a1003958e8a3745cb42e47af8e7ff9961dd3d2ea070cc72444b5c63763f953b393bdd7c8a31f3ea29e8d3c86cc8647ae67bb054e22bce34af492ce1'
+        '6dd7c1b3a6246c2892316cd07d0bcc5e5528955b841e900a88e48c0a6b79861034fbe66bea1d5ee610668919f5d10f688ec68aa6f4edb98d30c7f9f6241b989d'
+        '5897022ff8b7a4f2eabb9788569e5a1b034ccad15a632ea9bfe1618714a02072dbca9e7467fe51337c5dbc46b218453e358461ceb110d385953622490f520a75'
+        '14f45171afc3b15488b40a05e58b352c5057da3a5782e13527392f7750d8e45a8db54f9b50b218fedb8bf679de3b4e5d78e230a44f7b1aa482f7b3aa831bd641'
+        '705a8f2037eef3afdd0f2a7648cc8d00bfc03112385b44a8907182812b6aed075519a9236909c0e3ba09df887381dd76cb01c601e0df05119136f7318587a416')
 
 export KBUILD_BUILD_HOST=${KBUILD_BUILD_HOST:-archlinux}
 export KBUILD_BUILD_USER=${KBUILD_BUILD_USER:-makepkg}
 export KBUILD_BUILD_TIMESTAMP=${KBUILD_BUILD_TIMESTAMP:-$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})}
 
 prepare() {
+
   cd linux-${_major}
 
-  # Apply Xanmod patch
+  msg2 "Apply Xanmod patch"
   xz -d < ../patch-${pkgver}-xanmod${xanmod}-cacule.xz | patch -Np1
 
   msg2 "Setting version..."
diff --git a/config b/config
new file mode 100644
index 000000000000..ccec6604ed1e
--- /dev/null
+++ b/config
@@ -0,0 +1,2890 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# Linux/x86 5.13.0 Kernel Configuration
+#
+CONFIG_CC_VERSION_TEXT="gcc (GCC) 11.1.0"
+CONFIG_CC_IS_GCC=y
+CONFIG_GCC_VERSION=110100
+CONFIG_CLANG_VERSION=0
+CONFIG_AS_IS_GNU=y
+CONFIG_AS_VERSION=23601
+CONFIG_LD_IS_BFD=y
+CONFIG_LD_VERSION=23601
+CONFIG_LLD_VERSION=0
+CONFIG_CC_CAN_LINK=y
+CONFIG_CC_CAN_LINK_STATIC=y
+CONFIG_CC_HAS_ASM_GOTO=y
+CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
+CONFIG_CC_HAS_ASM_INLINE=y
+CONFIG_IRQ_WORK=y
+CONFIG_BUILDTIME_TABLE_SORT=y
+CONFIG_THREAD_INFO_IN_TASK=y
+
+#
+# General setup
+#
+CONFIG_INIT_ENV_ARG_LIMIT=32
+# CONFIG_COMPILE_TEST is not set
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_BUILD_SALT=""
+CONFIG_HAVE_KERNEL_GZIP=y
+CONFIG_HAVE_KERNEL_BZIP2=y
+CONFIG_HAVE_KERNEL_LZMA=y
+CONFIG_HAVE_KERNEL_XZ=y
+CONFIG_HAVE_KERNEL_LZO=y
+CONFIG_HAVE_KERNEL_LZ4=y
+CONFIG_HAVE_KERNEL_ZSTD=y
+# CONFIG_KERNEL_GZIP is not set
+# CONFIG_KERNEL_BZIP2 is not set
+# CONFIG_KERNEL_LZMA is not set
+# CONFIG_KERNEL_XZ is not set
+# CONFIG_KERNEL_LZO is not set
+# CONFIG_KERNEL_LZ4 is not set
+CONFIG_KERNEL_ZSTD=y
+CONFIG_DEFAULT_INIT=""
+CONFIG_DEFAULT_HOSTNAME="(none)"
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+# CONFIG_POSIX_MQUEUE is not set
+CONFIG_WATCH_QUEUE=y
+CONFIG_CROSS_MEMORY_ATTACH=y
+# CONFIG_USELIB is not set
+# CONFIG_AUDIT is not set
+CONFIG_HAVE_ARCH_AUDITSYSCALL=y
+
+#
+# IRQ subsystem
+#
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_PENDING_IRQ=y
+CONFIG_GENERIC_IRQ_MIGRATION=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
+CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_SPARSE_IRQ=y
+# end of IRQ subsystem
+
+CONFIG_CLOCKSOURCE_WATCHDOG=y
+CONFIG_ARCH_CLOCKSOURCE_INIT=y
+CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
+CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
+
+#
+# Timers subsystem
+#
+CONFIG_TICK_ONESHOT=y
+CONFIG_HZ_PERIODIC=y
+# CONFIG_NO_HZ_IDLE is not set
+# CONFIG_NO_HZ_FULL is not set
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+# end of Timers subsystem
+
+CONFIG_BPF=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
+
+#
+# BPF subsystem
+#
+CONFIG_BPF_SYSCALL=y
+# CONFIG_BPF_JIT is not set
+# CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set
+CONFIG_USERMODE_DRIVER=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BPF_PRELOAD_UMD=m
+# end of BPF subsystem
+
+# CONFIG_PREEMPT_NONE is not set
+# CONFIG_PREEMPT_VOLUNTARY is not set
+CONFIG_PREEMPT=y
+CONFIG_PREEMPT_COUNT=y
+CONFIG_PREEMPTION=y
+CONFIG_PREEMPT_DYNAMIC=y
+
+#
+# CPU/Task time and stats accounting
+#
+CONFIG_TICK_CPU_ACCOUNTING=y
+# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
+CONFIG_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_SCHED_AVG_IRQ=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+# CONFIG_TASK_XACCT is not set
+CONFIG_PSI=y
+CONFIG_PSI_DEFAULT_DISABLED=y
+# end of CPU/Task time and stats accounting
+
+CONFIG_CPU_ISOLATION=y
+
+#
+# RCU Subsystem
+#
+CONFIG_TREE_RCU=y
+CONFIG_PREEMPT_RCU=y
+# CONFIG_RCU_EXPERT is not set
+CONFIG_SRCU=y
+CONFIG_TREE_SRCU=y
+CONFIG_TASKS_RCU_GENERIC=y
+CONFIG_TASKS_RCU=y
+CONFIG_TASKS_TRACE_RCU=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_BOOST=y
+CONFIG_RCU_BOOST_DELAY=0
+# end of RCU Subsystem
+
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+# CONFIG_IKHEADERS is not set
+CONFIG_LOG_BUF_SHIFT=17
+CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
+CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
+CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
+
+#
+# Scheduler features
+#
+# CONFIG_UCLAMP_TASK is not set
+# end of Scheduler features
+
+CONFIG_CACULE_SCHED=y
+# CONFIG_CACULE_RDB is not set
+CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
+CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
+CONFIG_CC_HAS_INT128=y
+CONFIG_ARCH_SUPPORTS_INT128=y
+CONFIG_CGROUPS=y
+CONFIG_PAGE_COUNTER=y
+CONFIG_MEMCG=y
+CONFIG_MEMCG_SWAP=y
+CONFIG_MEMCG_KMEM=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_WRITEBACK=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_FAIR_GROUP_SCHED=y
+# CONFIG_CFS_BANDWIDTH is not set
+# CONFIG_RT_GROUP_SCHED is not set
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CPUSETS=y
+CONFIG_PROC_PID_CPUSET=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_PERF=y
+# CONFIG_CGROUP_BPF is not set
+# CONFIG_CGROUP_MISC is not set
+CONFIG_NAMESPACES=y
+CONFIG_UTS_NS=y
+CONFIG_TIME_NS=y
+CONFIG_IPC_NS=y
+CONFIG_USER_NS=y
+CONFIG_PID_NS=y
+CONFIG_NET_NS=y
+CONFIG_CHECKPOINT_RESTORE=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_SCHED_AUTOGROUP_DEFAULT_ENABLED=y
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_RD_GZIP=y
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
+CONFIG_RD_XZ=y
+CONFIG_RD_LZO=y
+CONFIG_RD_LZ4=y
+CONFIG_RD_ZSTD=y
+CONFIG_BOOT_CONFIG=y
+# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
+# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_LD_ORPHAN_WARN=y
+CONFIG_SYSCTL=y
+CONFIG_HAVE_UID16=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_HAVE_PCSPKR_PLATFORM=y
+# CONFIG_EXPERT is not set
+CONFIG_UID16=y
+CONFIG_MULTIUSER=y
+CONFIG_SGETMASK_SYSCALL=y
+CONFIG_SYSFS_SYSCALL=y
+CONFIG_FHANDLE=y
+CONFIG_POSIX_TIMERS=y
+CONFIG_PRINTK=y
+CONFIG_PRINTK_NMI=y
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_PCSPKR_PLATFORM=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_FUTEX2=y
+CONFIG_FUTEX_PI=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_TIMERFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_AIO=y
+CONFIG_IO_URING=y
+CONFIG_ADVISE_SYSCALLS=y
+CONFIG_HAVE_ARCH_USERFAULTFD_WP=y
+CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y
+CONFIG_MEMBARRIER=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
+CONFIG_KALLSYMS_BASE_RELATIVE=y
+CONFIG_USERFAULTFD=y
+CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
+CONFIG_KCMP=y
+CONFIG_RSEQ=y
+# CONFIG_EMBEDDED is not set
+CONFIG_HAVE_PERF_EVENTS=y
+
+#
+# Kernel Performance Events And Counters
+#
+CONFIG_PERF_EVENTS=y
+# end of Kernel Performance Events And Counters
+
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLUB_DEBUG=y
+CONFIG_COMPAT_BRK=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
+CONFIG_SLAB_MERGE_DEFAULT=y
+CONFIG_SLAB_FREELIST_RANDOM=y
+CONFIG_SLAB_FREELIST_HARDENED=y
+CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
+CONFIG_SLUB_CPU_PARTIAL=y
+CONFIG_SYSTEM_DATA_VERIFICATION=y
+CONFIG_PROFILING=y
+# end of General setup
+
+CONFIG_64BIT=y
+CONFIG_X86_64=y
+CONFIG_X86=y
+CONFIG_INSTRUCTION_DECODER=y
+CONFIG_OUTPUT_FORMAT="elf64-x86-64"
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_MMU=y
+CONFIG_ARCH_MMAP_RND_BITS_MIN=28
+CONFIG_ARCH_MMAP_RND_BITS_MAX=32
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
+CONFIG_GENERIC_ISA_DMA=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
+CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_ARCH_HAS_CPU_RELAX=y
+CONFIG_ARCH_HAS_FILTER_PGPROT=y
+CONFIG_HAVE_SETUP_PER_CPU_AREA=y
+CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
+CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
+CONFIG_ZONE_DMA32=y
+CONFIG_AUDIT_ARCH=y
+CONFIG_X86_64_SMP=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_FIX_EARLYCON_MEM=y
+CONFIG_DYNAMIC_PHYSICAL_MASK=y
+CONFIG_PGTABLE_LEVELS=5
+CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
+
+#
+# Processor type and features
+#
+CONFIG_ZONE_DMA=y
+CONFIG_SMP=y
+CONFIG_X86_FEATURE_NAMES=y
+# CONFIG_X86_X2APIC is not set
+CONFIG_X86_MPPARSE=y
+# CONFIG_GOLDFISH is not set
+CONFIG_RETPOLINE=y
+CONFIG_X86_CPU_RESCTRL=y
+# CONFIG_X86_EXTENDED_PLATFORM is not set
+CONFIG_X86_AMD_PLATFORM_DEVICE=y
+CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
+CONFIG_SCHED_OMIT_FRAME_POINTER=y
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_PARAVIRT=y
+CONFIG_PARAVIRT_XXL=y
+CONFIG_PARAVIRT_SPINLOCKS=y
+CONFIG_X86_HV_CALLBACK_VECTOR=y
+CONFIG_XEN=y
+CONFIG_XEN_PV=y
+CONFIG_XEN_512GB=y
+CONFIG_XEN_PV_SMP=y
+CONFIG_XEN_PVHVM=y
+CONFIG_XEN_PVHVM_SMP=y
+CONFIG_XEN_SAVE_RESTORE=y
+CONFIG_XEN_PVH=y
+CONFIG_KVM_GUEST=y
+CONFIG_ARCH_CPUIDLE_HALTPOLL=y
+CONFIG_PVH=y
+CONFIG_PARAVIRT_TIME_ACCOUNTING=y
+CONFIG_PARAVIRT_CLOCK=y
+CONFIG_ACRN_GUEST=y
+# CONFIG_MK8 is not set
+# CONFIG_MK8SSE3 is not set
+# CONFIG_MK10 is not set
+# CONFIG_MBARCELONA is not set
+# CONFIG_MBOBCAT is not set
+# CONFIG_MJAGUAR is not set
+# CONFIG_MBULLDOZER is not set
+# CONFIG_MPILEDRIVER is not set
+# CONFIG_MSTEAMROLLER is not set
+# CONFIG_MEXCAVATOR is not set
+# CONFIG_MZEN is not set
+# CONFIG_MZEN2 is not set
+# CONFIG_MZEN3 is not set
+# CONFIG_MPSC is not set
+# CONFIG_MCORE2 is not set
+# CONFIG_MATOM is not set
+# CONFIG_MNEHALEM is not set
+# CONFIG_MWESTMERE is not set
+# CONFIG_MSILVERMONT is not set
+# CONFIG_MGOLDMONT is not set
+# CONFIG_MGOLDMONTPLUS is not set
+# CONFIG_MSANDYBRIDGE is not set
+# CONFIG_MIVYBRIDGE is not set
+# CONFIG_MHASWELL is not set
+# CONFIG_MBROADWELL is not set
+# CONFIG_MSKYLAKE is not set
+# CONFIG_MSKYLAKEX is not set
+# CONFIG_MCANNONLAKE is not set
+# CONFIG_MICELAKE is not set
+# CONFIG_MCASCADELAKE is not set
+# CONFIG_MCOOPERLAKE is not set
+# CONFIG_MTIGERLAKE is not set
+# CONFIG_MSAPPHIRERAPIDS is not set
+# CONFIG_MROCKETLAKE is not set
+# CONFIG_MALDERLAKE is not set
+CONFIG_GENERIC_CPU=y
+# CONFIG_GENERIC_CPU2 is not set
+# CONFIG_GENERIC_CPU3 is not set
+# CONFIG_GENERIC_CPU4 is not set
+# CONFIG_MNATIVE_INTEL is not set
+# CONFIG_MNATIVE_AMD is not set
+CONFIG_X86_INTERNODE_CACHE_SHIFT=6
+CONFIG_X86_L1_CACHE_SHIFT=6
+CONFIG_X86_TSC=y
+CONFIG_X86_CMPXCHG64=y
+CONFIG_X86_CMOV=y
+CONFIG_X86_MINIMUM_CPU_FAMILY=64
+CONFIG_X86_DEBUGCTLMSR=y
+CONFIG_IA32_FEAT_CTL=y
+CONFIG_X86_VMX_FEATURE_NAMES=y
+CONFIG_CPU_SUP_INTEL=y
+CONFIG_CPU_SUP_AMD=y
+CONFIG_CPU_SUP_HYGON=y
+CONFIG_CPU_SUP_CENTAUR=y
+CONFIG_CPU_SUP_ZHAOXIN=y
+CONFIG_HPET_TIMER=y
+CONFIG_DMI=y
+CONFIG_NR_CPUS_RANGE_BEGIN=2
+CONFIG_NR_CPUS_RANGE_END=512
+CONFIG_NR_CPUS_DEFAULT=64
+CONFIG_NR_CPUS=64
+CONFIG_SCHED_SMT=y
+CONFIG_SCHED_MC=y
+CONFIG_SCHED_MC_PRIO=y
+CONFIG_X86_LOCAL_APIC=y
+CONFIG_X86_IO_APIC=y
+# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
+CONFIG_X86_MCE=y
+# CONFIG_X86_MCELOG_LEGACY is not set
+CONFIG_X86_MCE_INTEL=y
+CONFIG_X86_MCE_THRESHOLD=y
+
+#
+# Performance monitoring
+#
+CONFIG_PERF_EVENTS_AMD_POWER=y
+# end of Performance monitoring
+
+CONFIG_X86_16BIT=y
+CONFIG_X86_ESPFIX64=y
+CONFIG_X86_VSYSCALL_EMULATION=y
+CONFIG_X86_IOPL_IOPERM=y
+CONFIG_I8K=y
+CONFIG_MICROCODE=y
+CONFIG_MICROCODE_INTEL=y
+CONFIG_MICROCODE_AMD=y
+# CONFIG_MICROCODE_OLD_INTERFACE is not set
+CONFIG_X86_MSR=y
+CONFIG_X86_CPUID=y
+CONFIG_X86_5LEVEL=y
+CONFIG_X86_DIRECT_GBPAGES=y
+CONFIG_AMD_MEM_ENCRYPT=y
+CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y
+# CONFIG_NUMA is not set
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+# CONFIG_ARCH_MEMORY_PROBE is not set
+CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
+# CONFIG_X86_PMEM_LEGACY is not set
+# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
+CONFIG_X86_RESERVE_LOW=64
+CONFIG_MTRR=y
+CONFIG_MTRR_SANITIZER=y
+CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
+CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
+CONFIG_X86_PAT=y
+CONFIG_ARCH_USES_PG_UNCACHED=y
+CONFIG_ARCH_RANDOM=y
+CONFIG_X86_SMAP=y
+CONFIG_X86_UMIP=y
+CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y
+CONFIG_X86_INTEL_TSX_MODE_OFF=y
+# CONFIG_X86_INTEL_TSX_MODE_ON is not set
+# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
+CONFIG_EFI=y
+CONFIG_EFI_STUB=y
+CONFIG_EFI_MIXED=y
+# CONFIG_HZ_100 is not set
+# CONFIG_HZ_250 is not set
+# CONFIG_HZ_300 is not set
+CONFIG_HZ_500=y
+# CONFIG_HZ_1000 is not set
+# CONFIG_HZ_2000 is not set
+CONFIG_HZ=500
+CONFIG_SCHED_HRTICK=y
+# CONFIG_KEXEC is not set
+# CONFIG_CRASH_DUMP is not set
+CONFIG_PHYSICAL_START=0x1000000
+CONFIG_RELOCATABLE=y
+CONFIG_RANDOMIZE_BASE=y
+CONFIG_X86_NEED_RELOCS=y
+CONFIG_PHYSICAL_ALIGN=0x200000
+CONFIG_DYNAMIC_MEMORY_LAYOUT=y
+CONFIG_RANDOMIZE_MEMORY=y
+CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa
+CONFIG_HOTPLUG_CPU=y
+# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
+# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
+# CONFIG_COMPAT_VDSO is not set
+# CONFIG_LEGACY_VSYSCALL_EMULATE is not set
+CONFIG_LEGACY_VSYSCALL_XONLY=y
+# CONFIG_LEGACY_VSYSCALL_NONE is not set
+# CONFIG_CMDLINE_BOOL is not set
+CONFIG_MODIFY_LDT_SYSCALL=y
+CONFIG_HAVE_LIVEPATCH=y
+# end of Processor type and features
+
+CONFIG_ARCH_HAS_ADD_PAGES=y
+CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y
+
+#
+# Power management and ACPI options
+#
+CONFIG_ARCH_HIBERNATION_HEADER=y
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_HIBERNATE_CALLBACKS=y
+CONFIG_HIBERNATION=y
+CONFIG_HIBERNATION_SNAPSHOT_DEV=y
+CONFIG_PM_STD_PARTITION=""
+CONFIG_PM_SLEEP=y
+CONFIG_PM_SLEEP_SMP=y
+# CONFIG_PM_AUTOSLEEP is not set
+CONFIG_PM_WAKELOCKS=y
+CONFIG_PM_WAKELOCKS_LIMIT=100
+CONFIG_PM_WAKELOCKS_GC=y
+CONFIG_PM=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_CLK=y
+CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
+CONFIG_ENERGY_MODEL=y
+CONFIG_ARCH_SUPPORTS_ACPI=y
+CONFIG_ACPI=y
+CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
+CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
+CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
+# CONFIG_ACPI_DEBUGGER is not set
+CONFIG_ACPI_SPCR_TABLE=y
+# CONFIG_ACPI_FPDT is not set
+CONFIG_ACPI_LPIT=y
+CONFIG_ACPI_SLEEP=y
+CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
+# CONFIG_ACPI_EC_DEBUGFS is not set
+CONFIG_ACPI_AC=y
+CONFIG_ACPI_BATTERY=y
+CONFIG_ACPI_BUTTON=y
+CONFIG_ACPI_FAN=y
+CONFIG_ACPI_TAD=y
+CONFIG_ACPI_DOCK=y
+CONFIG_ACPI_CPU_FREQ_PSS=y
+CONFIG_ACPI_PROCESSOR_CSTATE=y
+CONFIG_ACPI_PROCESSOR_IDLE=y
+CONFIG_ACPI_CPPC_LIB=y
+CONFIG_ACPI_PROCESSOR=y
+CONFIG_ACPI_HOTPLUG_CPU=y
+# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
+CONFIG_ACPI_THERMAL=y
+CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
+CONFIG_ACPI_TABLE_UPGRADE=y
+# CONFIG_ACPI_DEBUG is not set
+CONFIG_ACPI_CONTAINER=y
+# CONFIG_ACPI_HOTPLUG_MEMORY is not set
+CONFIG_ACPI_SBS=y
+CONFIG_ACPI_HED=y
+# CONFIG_ACPI_BGRT is not set
+CONFIG_ACPI_NFIT=y
+# CONFIG_NFIT_SECURITY_DEBUG is not set
+CONFIG_HAVE_ACPI_APEI=y
+CONFIG_HAVE_ACPI_APEI_NMI=y
+CONFIG_ACPI_APEI=y
+CONFIG_ACPI_APEI_GHES=y
+# CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
+# CONFIG_ACPI_APEI_ERST_DEBUG is not set
+# CONFIG_ACPI_DPTF is not set
+CONFIG_ACPI_CONFIGFS=y
+# CONFIG_PMIC_OPREGION is not set
+CONFIG_X86_PM_TIMER=y
+
+#
+# CPU Frequency scaling
+#
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_STAT=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
+# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
+
+#
+# CPU frequency scaling drivers
+#
+CONFIG_X86_INTEL_PSTATE=y
+CONFIG_X86_PCC_CPUFREQ=y
+CONFIG_X86_ACPI_CPUFREQ=y
+CONFIG_X86_ACPI_CPUFREQ_CPB=y
+CONFIG_X86_POWERNOW_K8=y
+CONFIG_X86_SPEEDSTEP_CENTRINO=y
+CONFIG_X86_P4_CLOCKMOD=y
+
+#
+# shared options
+#
+CONFIG_X86_SPEEDSTEP_LIB=y
+# end of CPU Frequency scaling
+
+#
+# CPU Idle
+#
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+# CONFIG_CPU_IDLE_GOV_TEO is not set
+CONFIG_CPU_IDLE_GOV_HALTPOLL=y
+CONFIG_HALTPOLL_CPUIDLE=y
+# end of CPU Idle
+
+# CONFIG_INTEL_IDLE is not set
+# end of Power management and ACPI options
+
+#
+# Bus options (PCI etc.)
+#
+CONFIG_ISA_DMA_API=y
+# CONFIG_X86_SYSFB is not set
+# end of Bus options (PCI etc.)
+
+#
+# Binary Emulations
+#
+CONFIG_IA32_EMULATION=y
+# CONFIG_X86_X32 is not set
+CONFIG_COMPAT_32=y
+CONFIG_COMPAT=y
+CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
+CONFIG_SYSVIPC_COMPAT=y
+# end of Binary Emulations
+
+#
+# Firmware Drivers
+#
+CONFIG_EDD=y
+# CONFIG_EDD_OFF is not set
+CONFIG_FIRMWARE_MEMMAP=y
+CONFIG_DMIID=y
+CONFIG_DMI_SYSFS=y
+CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
+CONFIG_FW_CFG_SYSFS=y
+CONFIG_FW_CFG_SYSFS_CMDLINE=y
+CONFIG_GOOGLE_FIRMWARE=y
+CONFIG_GOOGLE_SMI=y
+CONFIG_GOOGLE_COREBOOT_TABLE=y
+CONFIG_GOOGLE_MEMCONSOLE=y
+CONFIG_GOOGLE_MEMCONSOLE_X86_LEGACY=y
+CONFIG_GOOGLE_MEMCONSOLE_COREBOOT=y
+CONFIG_GOOGLE_VPD=y
+
+#
+# EFI (Extensible Firmware Interface) Support
+#
+CONFIG_EFI_VARS=y
+CONFIG_EFI_ESRT=y
+CONFIG_EFI_VARS_PSTORE=y
+# CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set
+CONFIG_EFI_FAKE_MEMMAP=y
+CONFIG_EFI_MAX_FAKE_MEM=8
+CONFIG_EFI_RUNTIME_WRAPPERS=y
+CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
+CONFIG_EFI_BOOTLOADER_CONTROL=y
+CONFIG_EFI_CAPSULE_LOADER=y
+CONFIG_EFI_TEST=y
+CONFIG_APPLE_PROPERTIES=y
+CONFIG_RESET_ATTACK_MITIGATION=y
+CONFIG_EFI_RCI2_TABLE=y
+CONFIG_EFI_DISABLE_PCI_DMA=y
+# end of EFI (Extensible Firmware Interface) Support
+
+CONFIG_UEFI_CPER=y
+CONFIG_UEFI_CPER_X86=y
+CONFIG_EFI_DEV_PATH_PARSER=y
+CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y
+
+#
+# Tegra firmware driver
+#
+# end of Tegra firmware driver
+# end of Firmware Drivers
+
+CONFIG_HAVE_KVM=y
+CONFIG_HAVE_KVM_IRQCHIP=y
+CONFIG_HAVE_KVM_IRQFD=y
+CONFIG_HAVE_KVM_IRQ_ROUTING=y
+CONFIG_HAVE_KVM_EVENTFD=y
+CONFIG_KVM_MMIO=y
+CONFIG_KVM_ASYNC_PF=y
+CONFIG_HAVE_KVM_MSI=y
+CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
+CONFIG_KVM_VFIO=y
+CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
+CONFIG_KVM_COMPAT=y
+CONFIG_HAVE_KVM_IRQ_BYPASS=y
+CONFIG_HAVE_KVM_NO_POLL=y
+CONFIG_KVM_XFER_TO_GUEST_WORK=y
+CONFIG_VIRTUALIZATION=y
+CONFIG_KVM=y
+CONFIG_KVM_INTEL=y
+CONFIG_KVM_AMD=y
+CONFIG_KVM_XEN=y
+CONFIG_AS_AVX512=y
+CONFIG_AS_SHA1_NI=y
+CONFIG_AS_SHA256_NI=y
+CONFIG_AS_TPAUSE=y
+
+#
+# General architecture-dependent options
+#
+CONFIG_HOTPLUG_SMT=y
+CONFIG_GENERIC_ENTRY=y
+# CONFIG_KPROBES is not set
+# CONFIG_JUMP_LABEL is not set
+# CONFIG_STATIC_CALL_SELFTEST is not set
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_USER_RETURN_NOTIFIER=y
+CONFIG_HAVE_IOREMAP_PROT=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_OPTPROBES=y
+CONFIG_HAVE_KPROBES_ON_FTRACE=y
+CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
+CONFIG_HAVE_NMI=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
+CONFIG_ARCH_HAS_SET_MEMORY=y
+CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
+CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
+CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
+CONFIG_HAVE_ASM_MODVERSIONS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_RSEQ=y
+CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
+CONFIG_HAVE_HW_BREAKPOINT=y
+CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
+CONFIG_HAVE_USER_RETURN_NOTIFIER=y
+CONFIG_HAVE_PERF_EVENTS_NMI=y
+CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
+CONFIG_MMU_GATHER_TABLE_FREE=y
+CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
+CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
+CONFIG_HAVE_CMPXCHG_LOCAL=y
+CONFIG_HAVE_CMPXCHG_DOUBLE=y
+CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
+CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
+CONFIG_HAVE_ARCH_SECCOMP=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_SECCOMP=y
+CONFIG_SECCOMP_FILTER=y
+# CONFIG_SECCOMP_CACHE_DEBUG is not set
+CONFIG_HAVE_ARCH_STACKLEAK=y
+CONFIG_HAVE_STACKPROTECTOR=y
+CONFIG_STACKPROTECTOR=y
+CONFIG_STACKPROTECTOR_STRONG=y
+CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
+CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
+CONFIG_LTO_NONE=y
+CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_CONTEXT_TRACKING_OFFSTACK=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_MOVE_PUD=y
+CONFIG_HAVE_MOVE_PMD=y
+CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
+CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
+CONFIG_HAVE_ARCH_PARENT_PMD_YOUNG=y
+CONFIG_HAVE_ARCH_HUGE_VMAP=y
+CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
+CONFIG_HAVE_ARCH_SOFT_DIRTY=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
+CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
+CONFIG_HAVE_EXIT_THREAD=y
+CONFIG_ARCH_MMAP_RND_BITS=28
+CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
+CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
+CONFIG_HAVE_STACK_VALIDATION=y
+CONFIG_HAVE_RELIABLE_STACKTRACE=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_COMPAT_OLD_SIGACTION=y
+# CONFIG_COMPAT_32BIT_TIME is not set
+CONFIG_HAVE_ARCH_VMAP_STACK=y
+CONFIG_VMAP_STACK=y
+CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
+# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
+CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
+CONFIG_STRICT_KERNEL_RWX=y
+CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
+CONFIG_STRICT_MODULE_RWX=y
+CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
+CONFIG_ARCH_USE_MEMREMAP_PROT=y
+CONFIG_ARCH_HAS_MEM_ENCRYPT=y
+CONFIG_HAVE_STATIC_CALL=y
+CONFIG_HAVE_STATIC_CALL_INLINE=y
+CONFIG_HAVE_PREEMPT_DYNAMIC=y
+CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
+CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
+CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
+
+#
+# GCOV-based kernel profiling
+#
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+# end of GCOV-based kernel profiling
+
+CONFIG_HAVE_GCC_PLUGINS=y
+CONFIG_GCC_PLUGINS=y
+# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
+# CONFIG_GCC_PLUGIN_RANDSTRUCT is not set
+# end of General architecture-dependent options
+
+CONFIG_RT_MUTEXES=y
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+CONFIG_MODVERSIONS=y
+CONFIG_ASM_MODVERSIONS=y
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_MODULE_SIG is not set
+# CONFIG_MODULE_COMPRESS_NONE is not set
+# CONFIG_MODULE_COMPRESS_GZIP is not set
+# CONFIG_MODULE_COMPRESS_XZ is not set
+CONFIG_MODULE_COMPRESS_ZSTD=y
+CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS=y
+CONFIG_MODPROBE_PATH="/sbin/modprobe"
+CONFIG_MODULES_TREE_LOOKUP=y
+CONFIG_BLOCK=y
+CONFIG_BLK_RQ_ALLOC_TIME=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BLK_CGROUP_RWSTAT=y
+CONFIG_BLK_DEV_BSG=y
+CONFIG_BLK_DEV_BSGLIB=y
+CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_BLK_DEV_ZONED=y
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_BLK_DEV_THROTTLING_LOW=y
+# CONFIG_BLK_CMDLINE_PARSER is not set
+CONFIG_BLK_WBT=y
+CONFIG_BLK_CGROUP_IOLATENCY=y
+CONFIG_BLK_CGROUP_IOCOST=y
+CONFIG_BLK_WBT_MQ=y
+CONFIG_BLK_SED_OPAL=y
+CONFIG_BLK_INLINE_ENCRYPTION=y
+CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+CONFIG_AIX_PARTITION=y
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MSDOS_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+# CONFIG_UNIXWARE_DISKLABEL is not set
+CONFIG_LDM_PARTITION=y
+# CONFIG_LDM_DEBUG is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_SUN_PARTITION is not set
+CONFIG_KARMA_PARTITION=y
+CONFIG_EFI_PARTITION=y
+# CONFIG_SYSV68_PARTITION is not set
+# CONFIG_CMDLINE_PARTITION is not set
+# end of Partition Types
+
+CONFIG_BLOCK_COMPAT=y
+CONFIG_BLK_PM=y
+
+#
+# IO Schedulers
+#
+# CONFIG_MQ_IOSCHED_DEADLINE is not set
+# CONFIG_MQ_IOSCHED_KYBER is not set
+CONFIG_IOSCHED_BFQ=y
+CONFIG_BFQ_GROUP_IOSCHED=y
+# CONFIG_BFQ_CGROUP_DEBUG is not set
+# end of IO Schedulers
+
+CONFIG_PREEMPT_NOTIFIERS=y
+CONFIG_ASN1=y
+CONFIG_UNINLINE_SPIN_UNLOCK=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
+CONFIG_QUEUED_SPINLOCKS=y
+CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
+CONFIG_QUEUED_RWLOCKS=y
+CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
+CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
+CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
+CONFIG_FREEZER=y
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+CONFIG_COMPAT_BINFMT_ELF=y
+CONFIG_ELFCORE=y
+CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
+CONFIG_BINFMT_SCRIPT=y
+CONFIG_BINFMT_MISC=m
+CONFIG_COREDUMP=y
+# end of Executable file formats
+
+#
+# Memory Management options
+#
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_CLEAN_LOW_KBYTES=150000
+CONFIG_CLEAN_MIN_KBYTES=0
+CONFIG_HAVE_FAST_GUP=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_HAVE_BOOTMEM_INFO_NODE=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTPLUG_SPARSE=y
+CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_MHP_MEMMAP_ON_MEMORY=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
+CONFIG_COMPACTION=y
+CONFIG_PAGE_REPORTING=y
+CONFIG_MIGRATION=y
+CONFIG_ARCH_ENABLE_THP_MIGRATION=y
+CONFIG_CONTIG_ALLOC=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_MMU_NOTIFIER=y
+CONFIG_KSM=y
+CONFIG_UKSM=y
+# CONFIG_KSM_LEGACY is not set
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
+CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
+CONFIG_MEMORY_FAILURE=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
+# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
+CONFIG_ARCH_WANTS_THP_SWAP=y
+CONFIG_THP_SWAP=y
+CONFIG_CLEANCACHE=y
+CONFIG_FRONTSWAP=y
+CONFIG_CMA=y
+# CONFIG_CMA_SYSFS is not set
+CONFIG_CMA_AREAS=7
+CONFIG_MEM_SOFT_DIRTY=y
+CONFIG_ZSWAP=y
+# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
+# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO is not set
+# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set
+# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
+# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
+CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD=y
+CONFIG_ZSWAP_COMPRESSOR_DEFAULT="zstd"
+# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD is not set
+CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD=y
+# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set
+CONFIG_ZSWAP_ZPOOL_DEFAULT="z3fold"
+CONFIG_ZSWAP_DEFAULT_ON=y
+CONFIG_ZPOOL=y
+CONFIG_ZBUD=y
+CONFIG_Z3FOLD=y
+CONFIG_ZSMALLOC=y
+# CONFIG_ZSMALLOC_STAT is not set
+CONFIG_GENERIC_EARLY_IOREMAP=y
+# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set
+CONFIG_IDLE_PAGE_TRACKING=y
+CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
+CONFIG_ARCH_HAS_PTE_DEVMAP=y
+CONFIG_ZONE_DEVICE=y
+CONFIG_DEV_PAGEMAP_OPS=y
+CONFIG_DEVICE_PRIVATE=y
+CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
+CONFIG_ARCH_HAS_PKEYS=y
+# CONFIG_PERCPU_STATS is not set
+
+#
+# GUP_TEST needs to have DEBUG_FS enabled
+#
+CONFIG_READ_ONLY_THP_FOR_FS=y
+CONFIG_ARCH_HAS_PTE_SPECIAL=y
+# CONFIG_LRU_GEN is not set
+# end of Memory Management options
+
+CONFIG_NET=y
+CONFIG_COMPAT_NETLINK_MESSAGES=y
+CONFIG_NET_INGRESS=y
+CONFIG_SKB_EXTENSIONS=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=m
+CONFIG_UNIX=y
+CONFIG_UNIX_SCM=y
+CONFIG_UNIX_DIAG=m
+CONFIG_TLS=m
+CONFIG_TLS_DEVICE=y
+# CONFIG_TLS_TOE is not set
+CONFIG_XFRM=y
+CONFIG_XFRM_OFFLOAD=y
+CONFIG_XFRM_ALGO=y
+CONFIG_XFRM_USER=y
+# CONFIG_XFRM_USER_COMPAT is not set
+CONFIG_XFRM_INTERFACE=m
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_MIGRATE=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_XFRM_AH=m
+CONFIG_XFRM_ESP=m
+CONFIG_XFRM_IPCOMP=m
+CONFIG_NET_KEY=m
+CONFIG_NET_KEY_MIGRATE=y
+CONFIG_XFRM_ESPINTCP=y
+CONFIG_SMC=m
+CONFIG_SMC_DIAG=m
+CONFIG_XDP_SOCKETS=y
+CONFIG_XDP_SOCKETS_DIAG=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_FIB_TRIE_STATS=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IP_ROUTE_CLASSID=y
+# CONFIG_IP_PNP is not set
+CONFIG_NET_IPIP=m
+CONFIG_NET_IPGRE_DEMUX=m
+CONFIG_NET_IP_TUNNEL=m
+CONFIG_NET_IPGRE=m
+CONFIG_NET_IPGRE_BROADCAST=y
+CONFIG_IP_MROUTE_COMMON=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+CONFIG_NET_IPVTI=m
+CONFIG_NET_UDP_TUNNEL=m
+CONFIG_NET_FOU=m
+CONFIG_NET_FOU_IP_TUNNELS=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_ESP_OFFLOAD=m
+CONFIG_INET_ESPINTCP=y
+CONFIG_INET_IPCOMP=m
+CONFIG_INET_XFRM_TUNNEL=m
+CONFIG_INET_TUNNEL=m
+CONFIG_INET_DIAG=m
+CONFIG_INET_TCP_DIAG=m
+CONFIG_INET_UDP_DIAG=m
+CONFIG_INET_RAW_DIAG=m
+CONFIG_INET_DIAG_DESTROY=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_CONG_BIC=m
+CONFIG_TCP_CONG_CUBIC=m
+CONFIG_TCP_CONG_WESTWOOD=m
+CONFIG_TCP_CONG_HTCP=m
+CONFIG_TCP_CONG_HSTCP=m
+CONFIG_TCP_CONG_HYBLA=m
+CONFIG_TCP_CONG_VEGAS=m
+CONFIG_TCP_CONG_NV=m
+CONFIG_TCP_CONG_SCALABLE=m
+CONFIG_TCP_CONG_LP=m
+CONFIG_TCP_CONG_VENO=m
+CONFIG_TCP_CONG_YEAH=m
+CONFIG_TCP_CONG_ILLINOIS=m
+CONFIG_TCP_CONG_DCTCP=m
+CONFIG_TCP_CONG_CDG=m
+CONFIG_TCP_CONG_BBR=y
+CONFIG_TCP_CONG_BBR2=y
+# CONFIG_DEFAULT_BBR is not set
+CONFIG_DEFAULT_BBR2=y
+# CONFIG_DEFAULT_RENO is not set
+CONFIG_DEFAULT_TCP_CONG="bbr2"
+CONFIG_TCP_MD5SIG=y
+CONFIG_IPV6=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_OPTIMISTIC_DAD=y
+CONFIG_INET6_AH=m
+CONFIG_INET6_ESP=m
+CONFIG_INET6_ESP_OFFLOAD=m
+CONFIG_INET6_ESPINTCP=y
+CONFIG_INET6_IPCOMP=m
+CONFIG_IPV6_MIP6=m
+CONFIG_IPV6_ILA=m
+CONFIG_INET6_XFRM_TUNNEL=m
+CONFIG_INET6_TUNNEL=m
+CONFIG_IPV6_VTI=m
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_SIT_6RD=y
+CONFIG_IPV6_NDISC_NODETYPE=y
+CONFIG_IPV6_TUNNEL=m
+CONFIG_IPV6_GRE=m
+CONFIG_IPV6_FOU=m
+CONFIG_IPV6_FOU_TUNNEL=m
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IPV6_PIMSM_V2=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPV6_SEG6_HMAC=y
+CONFIG_IPV6_SEG6_BPF=y
+CONFIG_IPV6_RPL_LWTUNNEL=y
+CONFIG_NETLABEL=y
+CONFIG_MPTCP=y
+CONFIG_INET_MPTCP_DIAG=m
+CONFIG_MPTCP_IPV6=y
+CONFIG_NETWORK_SECMARK=y
+CONFIG_NET_PTP_CLASSIFY=y
+CONFIG_NETWORK_PHY_TIMESTAMPING=y
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_BRIDGE_NETFILTER=m
+
+#
+# Core Netfilter Configuration
+#
+CONFIG_NETFILTER_INGRESS=y
+CONFIG_NETFILTER_NETLINK=m
+# CONFIG_NETFILTER_NETLINK_ACCT is not set
+# CONFIG_NETFILTER_NETLINK_QUEUE is not set
+# CONFIG_NETFILTER_NETLINK_LOG is not set
+# CONFIG_NETFILTER_NETLINK_OSF is not set
+# CONFIG_NF_CONNTRACK is not set
+# CONFIG_NF_LOG_SYSLOG is not set
+# CONFIG_NF_TABLES is not set
+# CONFIG_NETFILTER_XTABLES is not set
+# end of Core Netfilter Configuration
+
+CONFIG_IP_SET=m
+CONFIG_IP_SET_MAX=256
+# CONFIG_IP_SET_BITMAP_IP is not set
+# CONFIG_IP_SET_BITMAP_IPMAC is not set
+# CONFIG_IP_SET_BITMAP_PORT is not set
+# CONFIG_IP_SET_HASH_IP is not set
+# CONFIG_IP_SET_HASH_IPMARK is not set
+# CONFIG_IP_SET_HASH_IPPORT is not set
+# CONFIG_IP_SET_HASH_IPPORTIP is not set
+# CONFIG_IP_SET_HASH_IPPORTNET is not set
+# CONFIG_IP_SET_HASH_IPMAC is not set
+# CONFIG_IP_SET_HASH_MAC is not set
+# CONFIG_IP_SET_HASH_NETPORTNET is not set
+# CONFIG_IP_SET_HASH_NET is not set
+# CONFIG_IP_SET_HASH_NETNET is not set
+# CONFIG_IP_SET_HASH_NETPORT is not set
+# CONFIG_IP_SET_HASH_NETIFACE is not set
+# CONFIG_IP_SET_LIST_SET is not set
+# CONFIG_IP_VS is not set
+
+#
+# IP: Netfilter Configuration
+#
+# CONFIG_NF_SOCKET_IPV4 is not set
+# CONFIG_NF_TPROXY_IPV4 is not set
+# CONFIG_NF_DUP_IPV4 is not set
+# CONFIG_NF_LOG_ARP is not set
+# CONFIG_NF_LOG_IPV4 is not set
+# CONFIG_NF_REJECT_IPV4 is not set
+# CONFIG_IP_NF_IPTABLES is not set
+# CONFIG_IP_NF_ARPTABLES is not set
+# end of IP: Netfilter Configuration
+
+#
+# IPv6: Netfilter Configuration
+#
+# CONFIG_NF_SOCKET_IPV6 is not set
+# CONFIG_NF_TPROXY_IPV6 is not set
+# CONFIG_NF_DUP_IPV6 is not set
+# CONFIG_NF_REJECT_IPV6 is not set
+# CONFIG_NF_LOG_IPV6 is not set
+# CONFIG_IP6_NF_IPTABLES is not set
+# end of IPv6: Netfilter Configuration
+
+# CONFIG_BPFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_RDS is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_L2TP is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_PHONET is not set
+# CONFIG_6LOWPAN is not set
+# CONFIG_IEEE802154 is not set
+# CONFIG_NET_SCHED is not set
+# CONFIG_DCB is not set
+# CONFIG_DNS_RESOLVER is not set
+# CONFIG_BATMAN_ADV is not set
+# CONFIG_OPENVSWITCH is not set
+# CONFIG_VSOCKETS is not set
+# CONFIG_NETLINK_DIAG is not set
+# CONFIG_MPLS is not set
+# CONFIG_NET_NSH is not set
+# CONFIG_HSR is not set
+# CONFIG_NET_SWITCHDEV is not set
+# CONFIG_NET_L3_MASTER_DEV is not set
+# CONFIG_QRTR is not set
+# CONFIG_NET_NCSI is not set
+CONFIG_PCPU_DEV_REFCNT=y
+CONFIG_RPS=y
+CONFIG_RFS_ACCEL=y
+CONFIG_SOCK_RX_QUEUE_MAPPING=y
+CONFIG_XPS=y
+# CONFIG_CGROUP_NET_PRIO is not set
+# CONFIG_CGROUP_NET_CLASSID is not set
+CONFIG_NET_RX_BUSY_POLL=y
+CONFIG_BQL=y
+CONFIG_NET_FLOW_LIMIT=y
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# end of Network testing
+# end of Networking options
+
+CONFIG_HAMRADIO=y
+
+#
+# Packet Radio protocols
+#
+CONFIG_AX25=m
+CONFIG_AX25_DAMA_SLAVE=y
+CONFIG_NETROM=m
+CONFIG_ROSE=m
+
+#
+# AX.25 network device drivers
+#
+CONFIG_MKISS=m
+CONFIG_6PACK=m
+CONFIG_BPQETHER=m
+CONFIG_BAYCOM_SER_FDX=m
+CONFIG_BAYCOM_SER_HDX=m
+CONFIG_YAM=m
+# end of AX.25 network device drivers
+
+CONFIG_CAN=m
+CONFIG_CAN_RAW=m
+CONFIG_CAN_BCM=m
+CONFIG_CAN_GW=m
+CONFIG_CAN_J1939=m
+CONFIG_CAN_ISOTP=m
+
+#
+# CAN Device Drivers
+#
+CONFIG_CAN_VCAN=m
+CONFIG_CAN_VXCAN=m
+CONFIG_CAN_SLCAN=m
+CONFIG_CAN_DEV=m
+CONFIG_CAN_CALC_BITTIMING=y
+CONFIG_CAN_C_CAN=m
+CONFIG_CAN_C_CAN_PLATFORM=m
+CONFIG_CAN_CC770=m
+# CONFIG_CAN_CC770_ISA is not set
+CONFIG_CAN_CC770_PLATFORM=m
+CONFIG_CAN_IFI_CANFD=m
+CONFIG_CAN_M_CAN=m
+CONFIG_CAN_M_CAN_PLATFORM=m
+CONFIG_CAN_SJA1000=m
+# CONFIG_CAN_SJA1000_ISA is not set
+CONFIG_CAN_SJA1000_PLATFORM=m
+CONFIG_CAN_SOFTING=m
+# CONFIG_CAN_DEBUG_DEVICES is not set
+# end of CAN Device Drivers
+
+CONFIG_BT=m
+CONFIG_BT_BREDR=y
+CONFIG_BT_RFCOMM=m
+CONFIG_BT_RFCOMM_TTY=y
+CONFIG_BT_BNEP=m
+CONFIG_BT_BNEP_MC_FILTER=y
+CONFIG_BT_BNEP_PROTO_FILTER=y
+CONFIG_BT_HIDP=m
+# CONFIG_BT_HS is not set
+CONFIG_BT_LE=y
+CONFIG_BT_MSFTEXT=y
+CONFIG_BT_AOSPEXT=y
+# CONFIG_BT_FEATURE_DEBUG is not set
+
+#
+# Bluetooth device drivers
+#
+CONFIG_BT_INTEL=m
+CONFIG_BT_HCIUART=m
+CONFIG_BT_HCIUART_H4=y
+CONFIG_BT_HCIUART_BCSP=y
+CONFIG_BT_HCIUART_ATH3K=y
+CONFIG_BT_HCIUART_AG6XX=y
+CONFIG_BT_HCIVHCI=m
+CONFIG_BT_MRVL=m
+# end of Bluetooth device drivers
+
+# CONFIG_AF_RXRPC is not set
+# CONFIG_AF_KCM is not set
+CONFIG_STREAM_PARSER=y
+CONFIG_FIB_RULES=y
+CONFIG_WIRELESS=y
+CONFIG_WEXT_CORE=y
+CONFIG_WEXT_PROC=y
+CONFIG_CFG80211=m
+# CONFIG_NL80211_TESTMODE is not set
+# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
+CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
+CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
+CONFIG_CFG80211_DEFAULT_PS=y
+CONFIG_CFG80211_CRDA_SUPPORT=y
+CONFIG_CFG80211_WEXT=y
+CONFIG_MAC80211=m
+CONFIG_MAC80211_HAS_RC=y
+CONFIG_MAC80211_RC_MINSTREL=y
+CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
+CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
+CONFIG_MAC80211_MESH=y
+# CONFIG_MAC80211_MESSAGE_TRACING is not set
+# CONFIG_MAC80211_DEBUG_MENU is not set
+CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
+CONFIG_RFKILL=m
+CONFIG_RFKILL_INPUT=y
+CONFIG_NET_9P=m
+CONFIG_NET_9P_XEN=m
+# CONFIG_NET_9P_DEBUG is not set
+# CONFIG_CAIF is not set
+# CONFIG_CEPH_LIB is not set
+# CONFIG_NFC is not set
+CONFIG_PSAMPLE=m
+CONFIG_NET_IFE=m
+CONFIG_LWTUNNEL=y
+CONFIG_LWTUNNEL_BPF=y
+CONFIG_DST_CACHE=y
+CONFIG_GRO_CELLS=y
+CONFIG_SOCK_VALIDATE_XMIT=y
+CONFIG_NET_SOCK_MSG=y
+CONFIG_FAILOVER=m
+CONFIG_ETHTOOL_NETLINK=y
+
+#
+# Device Drivers
+#
+CONFIG_HAVE_EISA=y
+# CONFIG_EISA is not set
+CONFIG_HAVE_PCI=y
+# CONFIG_PCI is not set
+# CONFIG_PCCARD is not set
+
+#
+# Generic Driver Options
+#
+# CONFIG_UEVENT_HELPER is not set
+# CONFIG_DEVTMPFS is not set
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+
+#
+# Firmware loader
+#
+CONFIG_FW_LOADER=y
+CONFIG_EXTRA_FIRMWARE=""
+# CONFIG_FW_LOADER_USER_HELPER is not set
+# CONFIG_FW_LOADER_COMPRESS is not set
+CONFIG_FW_CACHE=y
+# end of Firmware loader
+
+CONFIG_ALLOW_DEV_COREDUMP=y
+# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
+CONFIG_SYS_HYPERVISOR=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_CPU_VULNERABILITIES=y
+CONFIG_REGMAP=y
+# end of Generic Driver Options
+
+#
+# Bus devices
+#
+# CONFIG_MHI_BUS is not set
+# end of Bus devices
+
+# CONFIG_CONNECTOR is not set
+# CONFIG_GNSS is not set
+# CONFIG_MTD is not set
+# CONFIG_OF is not set
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+# CONFIG_PARPORT is not set
+CONFIG_PNP=y
+CONFIG_PNP_DEBUG_MESSAGES=y
+
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_NULL_BLK is not set
+# CONFIG_BLK_DEV_FD is not set
+# CONFIG_ZRAM is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_DRBD is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_RAM is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+CONFIG_XEN_BLKDEV_FRONTEND=y
+# CONFIG_BLK_DEV_RBD is not set
+
+#
+# NVME Support
+#
+# CONFIG_NVME_FC is not set
+# CONFIG_NVME_TCP is not set
+# CONFIG_NVME_TARGET is not set
+# end of NVME Support
+
+#
+# Misc devices
+#
+# CONFIG_DUMMY_IRQ is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_SRAM is not set
+# CONFIG_XILINX_SDFEC is not set
+# CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_93CX6 is not set
+# end of EEPROM support
+
+#
+# Texas Instruments shared transport line discipline
+#
+# end of Texas Instruments shared transport line discipline
+
+#
+# Altera FPGA firmware download module (requires I2C)
+#
+# CONFIG_ECHO is not set
+# CONFIG_PVPANIC is not set
+# end of Misc devices
+
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+CONFIG_SCSI_MOD=y
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# end of SCSI device support
+
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+# CONFIG_TARGET_CORE is not set
+# CONFIG_MACINTOSH_DRIVERS is not set
+# CONFIG_NETDEVICES is not set
+# CONFIG_NVM is not set
+
+#
+# Input device support
+#
+CONFIG_INPUT=y
+CONFIG_INPUT_FF_MEMLESS=y
+# CONFIG_INPUT_SPARSEKMAP is not set
+# CONFIG_INPUT_MATRIXKMAP is not set
+
+#
+# Userland interfaces
+#
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_EVBUG is not set
+
+#
+# Input Device Drivers
+#
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_KEYBOARD_ATKBD=y
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_OPENCORES is not set
+# CONFIG_KEYBOARD_SAMSUNG is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+CONFIG_INPUT_MOUSE=y
+CONFIG_MOUSE_PS2=y
+CONFIG_MOUSE_PS2_ALPS=y
+CONFIG_MOUSE_PS2_BYD=y
+CONFIG_MOUSE_PS2_LOGIPS2PP=y
+CONFIG_MOUSE_PS2_SYNAPTICS=y
+CONFIG_MOUSE_PS2_CYPRESS=y
+CONFIG_MOUSE_PS2_LIFEBOOK=y
+CONFIG_MOUSE_PS2_TRACKPOINT=y
+# CONFIG_MOUSE_PS2_ELANTECH is not set
+# CONFIG_MOUSE_PS2_SENTELIC is not set
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
+CONFIG_MOUSE_PS2_FOCALTECH=y
+# CONFIG_MOUSE_PS2_VMMOUSE is not set
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_BCM5974 is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_MOUSE_SYNAPTICS_USB is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_MISC is not set
+# CONFIG_RMI4_CORE is not set
+
+#
+# Hardware I/O ports
+#
+CONFIG_SERIO=y
+CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
+CONFIG_SERIO_I8042=y
+CONFIG_SERIO_SERPORT=y
+# CONFIG_SERIO_CT82C710 is not set
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_RAW is not set
+# CONFIG_SERIO_ALTERA_PS2 is not set
+# CONFIG_SERIO_PS2MULT is not set
+# CONFIG_SERIO_ARC_PS2 is not set
+# CONFIG_USERIO is not set
+# CONFIG_GAMEPORT is not set
+# end of Hardware I/O ports
+# end of Input device support
+
+#
+# Character devices
+#
+CONFIG_TTY=y
+CONFIG_VT=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_HW_CONSOLE=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_LDISC_AUTOLOAD=y
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+# CONFIG_SERIAL_UARTLITE is not set
+# CONFIG_SERIAL_LANTIQ is not set
+# CONFIG_SERIAL_SCCNXP is not set
+# CONFIG_SERIAL_BCM63XX is not set
+# CONFIG_SERIAL_ALTERA_JTAGUART is not set
+# CONFIG_SERIAL_ALTERA_UART is not set
+# CONFIG_SERIAL_ARC is not set
+# CONFIG_SERIAL_FSL_LPUART is not set
+# CONFIG_SERIAL_FSL_LINFLEXUART is not set
+# CONFIG_SERIAL_SPRD is not set
+# end of Serial drivers
+
+# CONFIG_SERIAL_NONSTANDARD is not set
+# CONFIG_N_GSM is not set
+# CONFIG_NULL_TTY is not set
+CONFIG_HVC_DRIVER=y
+CONFIG_HVC_IRQ=y
+CONFIG_HVC_XEN=y
+CONFIG_HVC_XEN_FRONTEND=y
+# CONFIG_SERIAL_DEV_BUS is not set
+# CONFIG_VIRTIO_CONSOLE is not set
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM_TIMERIOMEM is not set
+# CONFIG_HW_RANDOM_BA431 is not set
+CONFIG_HW_RANDOM_VIA=y
+# CONFIG_HW_RANDOM_XIPHERA is not set
+# CONFIG_MWAVE is not set
+CONFIG_DEVMEM=y
+# CONFIG_NVRAM is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_HPET is not set
+# CONFIG_HANGCHECK_TIMER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_TELCLOCK is not set
+# end of Character devices
+
+# CONFIG_RANDOM_TRUST_CPU is not set
+# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+# end of I2C support
+
+# CONFIG_I3C is not set
+# CONFIG_SPI is not set
+# CONFIG_SPMI is not set
+# CONFIG_HSI is not set
+# CONFIG_PPS is not set
+
+#
+# PTP clock support
+#
+# CONFIG_PTP_1588_CLOCK is not set
+
+#
+# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
+#
+# end of PTP clock support
+
+CONFIG_PINCTRL=y
+# CONFIG_PINCTRL_AMD is not set
+# CONFIG_PINCTRL_BAYTRAIL is not set
+# CONFIG_PINCTRL_CHERRYVIEW is not set
+# CONFIG_PINCTRL_LYNXPOINT is not set
+# CONFIG_PINCTRL_ALDERLAKE is not set
+# CONFIG_PINCTRL_BROXTON is not set
+# CONFIG_PINCTRL_CANNONLAKE is not set
+# CONFIG_PINCTRL_CEDARFORK is not set
+# CONFIG_PINCTRL_DENVERTON is not set
+# CONFIG_PINCTRL_ELKHARTLAKE is not set
+# CONFIG_PINCTRL_EMMITSBURG is not set
+# CONFIG_PINCTRL_GEMINILAKE is not set
+# CONFIG_PINCTRL_ICELAKE is not set
+# CONFIG_PINCTRL_JASPERLAKE is not set
+# CONFIG_PINCTRL_LAKEFIELD is not set
+# CONFIG_PINCTRL_LEWISBURG is not set
+# CONFIG_PINCTRL_SUNRISEPOINT is not set
+# CONFIG_PINCTRL_TIGERLAKE is not set
+
+#
+# Renesas pinctrl drivers
+#
+# end of Renesas pinctrl drivers
+
+# CONFIG_GPIOLIB is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_RESET is not set
+CONFIG_POWER_SUPPLY=y
+# CONFIG_POWER_SUPPLY_DEBUG is not set
+CONFIG_POWER_SUPPLY_HWMON=y
+# CONFIG_PDA_POWER is not set
+# CONFIG_TEST_POWER is not set
+# CONFIG_BATTERY_DS2780 is not set
+# CONFIG_BATTERY_DS2781 is not set
+# CONFIG_BATTERY_BQ27XXX is not set
+# CONFIG_CHARGER_MAX8903 is not set
+# CONFIG_BATTERY_GOLDFISH is not set
+CONFIG_HWMON=y
+# CONFIG_HWMON_DEBUG_CHIP is not set
+
+#
+# Native drivers
+#
+# CONFIG_SENSORS_ABITUGURU is not set
+# CONFIG_SENSORS_ABITUGURU3 is not set
+# CONFIG_SENSORS_AS370 is not set
+# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
+# CONFIG_SENSORS_APPLESMC is not set
+# CONFIG_SENSORS_ASPEED is not set
+# CONFIG_SENSORS_CORSAIR_CPRO is not set
+# CONFIG_SENSORS_CORSAIR_PSU is not set
+CONFIG_SENSORS_DELL_SMM=y
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_CORETEMP is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_MAX197 is not set
+# CONFIG_SENSORS_MR75203 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_NTC_THERMISTOR is not set
+# CONFIG_SENSORS_NCT6683 is not set
+# CONFIG_SENSORS_NCT6775 is not set
+# CONFIG_SENSORS_NPCM7XX is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_VIA_CPUTEMP is not set
+# CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_SENSORS_XGENE is not set
+
+#
+# ACPI drivers
+#
+# CONFIG_SENSORS_ACPI_POWER is not set
+# CONFIG_SENSORS_ATK0110 is not set
+CONFIG_THERMAL=y
+# CONFIG_THERMAL_NETLINK is not set
+# CONFIG_THERMAL_STATISTICS is not set
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_HWMON=y
+CONFIG_THERMAL_WRITABLE_TRIPS=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
+# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
+# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
+CONFIG_THERMAL_GOV_STEP_WISE=y
+# CONFIG_THERMAL_GOV_BANG_BANG is not set
+CONFIG_THERMAL_GOV_USER_SPACE=y
+# CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set
+# CONFIG_THERMAL_EMULATION is not set
+
+#
+# Intel thermal drivers
+#
+# CONFIG_INTEL_POWERCLAMP is not set
+CONFIG_X86_THERMAL_VECTOR=y
+CONFIG_X86_PKG_TEMP_THERMAL=y
+
+#
+# ACPI INT340X thermal drivers
+#
+# end of ACPI INT340X thermal drivers
+
+# CONFIG_INTEL_TCC_COOLING is not set
+# end of Intel thermal drivers
+
+# CONFIG_WATCHDOG is not set
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+CONFIG_BCMA_POSSIBLE=y
+# CONFIG_BCMA is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_MADERA is not set
+# CONFIG_HTC_PASIC3 is not set
+# CONFIG_MFD_INTEL_LPSS_ACPI is not set
+# CONFIG_MFD_INTEL_PMC_BXT is not set
+# CONFIG_MFD_KEMPLD is not set
+# CONFIG_MFD_MT6397 is not set
+# CONFIG_MFD_SM501 is not set
+# CONFIG_MFD_SYSCON is not set
+# CONFIG_MFD_TI_AM335X_TSCADC is not set
+# CONFIG_MFD_TQMX86 is not set
+# end of Multifunction device drivers
+
+# CONFIG_REGULATOR is not set
+# CONFIG_RC_CORE is not set
+# CONFIG_MEDIA_CEC_SUPPORT is not set
+# CONFIG_MEDIA_SUPPORT is not set
+
+#
+# Graphics support
+#
+# CONFIG_DRM is not set
+
+#
+# ARM devices
+#
+# end of ARM devices
+
+#
+# Frame buffer Devices
+#
+# CONFIG_FB is not set
+# end of Frame buffer Devices
+
+#
+# Backlight & LCD device support
+#
+# CONFIG_LCD_CLASS_DEVICE is not set
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+# end of Backlight & LCD device support
+
+#
+# Console display driver support
+#
+CONFIG_VGA_CONSOLE=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_DUMMY_CONSOLE_COLUMNS=80
+CONFIG_DUMMY_CONSOLE_ROWS=25
+# end of Console display driver support
+# end of Graphics support
+
+# CONFIG_SOUND is not set
+
+#
+# HID support
+#
+CONFIG_HID=y
+# CONFIG_HID_BATTERY_STRENGTH is not set
+# CONFIG_HIDRAW is not set
+# CONFIG_UHID is not set
+CONFIG_HID_GENERIC=y
+
+#
+# Special HID drivers
+#
+CONFIG_HID_A4TECH=y
+# CONFIG_HID_ACRUX is not set
+CONFIG_HID_APPLE=y
+# CONFIG_HID_AUREAL is not set
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CHICONY=y
+# CONFIG_HID_COUGAR is not set
+# CONFIG_HID_MACALLY is not set
+# CONFIG_HID_CMEDIA is not set
+CONFIG_HID_CYPRESS=y
+# CONFIG_HID_DRAGONRISE is not set
+# CONFIG_HID_EMS_FF is not set
+# CONFIG_HID_ELECOM is not set
+CONFIG_HID_EZKEY=y
+# CONFIG_HID_GEMBIRD is not set
+# CONFIG_HID_GFRM is not set
+# CONFIG_HID_GLORIOUS is not set
+# CONFIG_HID_VIVALDI is not set
+# CONFIG_HID_KEYTOUCH is not set
+# CONFIG_HID_KYE is not set
+# CONFIG_HID_WALTOP is not set
+# CONFIG_HID_VIEWSONIC is not set
+# CONFIG_HID_GYRATION is not set
+# CONFIG_HID_ICADE is not set
+CONFIG_HID_ITE=y
+# CONFIG_HID_JABRA is not set
+# CONFIG_HID_TWINHAN is not set
+CONFIG_HID_KENSINGTON=y
+# CONFIG_HID_LCPOWER is not set
+# CONFIG_HID_LENOVO is not set
+# CONFIG_HID_MAGICMOUSE is not set
+# CONFIG_HID_MALTRON is not set
+# CONFIG_HID_MAYFLASH is not set
+CONFIG_HID_REDRAGON=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+# CONFIG_HID_MULTITOUCH is not set
+# CONFIG_HID_NTI is not set
+# CONFIG_HID_ORTEK is not set
+# CONFIG_HID_PANTHERLORD is not set
+# CONFIG_HID_PETALYNX is not set
+# CONFIG_HID_PICOLCD is not set
+# CONFIG_HID_PLANTRONICS is not set
+# CONFIG_HID_PLAYSTATION is not set
+# CONFIG_HID_PRIMAX is not set
+# CONFIG_HID_SAITEK is not set
+# CONFIG_HID_SAMSUNG is not set
+# CONFIG_HID_SEMITEK is not set
+# CONFIG_HID_SPEEDLINK is not set
+# CONFIG_HID_STEAM is not set
+# CONFIG_HID_STEELSERIES is not set
+# CONFIG_HID_SUNPLUS is not set
+# CONFIG_HID_RMI is not set
+# CONFIG_HID_GREENASIA is not set
+# CONFIG_HID_SMARTJOYPLUS is not set
+# CONFIG_HID_TIVO is not set
+# CONFIG_HID_TOPSEED is not set
+# CONFIG_HID_UDRAW_PS3 is not set
+# CONFIG_HID_XINMO is not set
+# CONFIG_HID_ZEROPLUS is not set
+# CONFIG_HID_ZYDACRON is not set
+# CONFIG_HID_SENSOR_HUB is not set
+# CONFIG_HID_ALPS is not set
+# end of Special HID drivers
+# end of HID support
+
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+CONFIG_USB_SUPPORT=y
+# CONFIG_USB_ULPI_BUS is not set
+CONFIG_USB_ARCH_HAS_HCD=y
+# CONFIG_USB is not set
+
+#
+# USB port drivers
+#
+
+#
+# USB Physical Layer drivers
+#
+# CONFIG_NOP_USB_XCEIV is not set
+# end of USB Physical Layer drivers
+
+# CONFIG_USB_GADGET is not set
+# CONFIG_TYPEC is not set
+# CONFIG_USB_ROLE_SWITCH is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_INFINIBAND is not set
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+# CONFIG_EDAC is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_MC146818_LIB=y
+# CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
+
+#
+# DMABUF options
+#
+# CONFIG_SYNC_FILE is not set
+# CONFIG_DMABUF_MOVE_NOTIFY is not set
+# CONFIG_DMABUF_DEBUG is not set
+# CONFIG_DMABUF_HEAPS is not set
+# end of DMABUF options
+
+# CONFIG_AUXDISPLAY is not set
+# CONFIG_UIO is not set
+# CONFIG_VFIO is not set
+CONFIG_IRQ_BYPASS_MANAGER=y
+# CONFIG_VIRT_DRIVERS is not set
+CONFIG_ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS=y
+CONFIG_VIRTIO_MENU=y
+# CONFIG_VIRTIO_MMIO is not set
+# CONFIG_VDPA is not set
+CONFIG_VHOST_MENU=y
+# CONFIG_VHOST_NET is not set
+# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
+
+#
+# Microsoft Hyper-V guest support
+#
+# CONFIG_HYPERV is not set
+# end of Microsoft Hyper-V guest support
+
+#
+# Xen driver support
+#
+CONFIG_XEN_BALLOON=y
+CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
+CONFIG_XEN_MEMORY_HOTPLUG_LIMIT=512
+CONFIG_XEN_SCRUB_PAGES_DEFAULT=y
+CONFIG_XEN_DEV_EVTCHN=y
+# CONFIG_XEN_BACKEND is not set
+CONFIG_XENFS=y
+CONFIG_XEN_COMPAT_XENFS=y
+CONFIG_XEN_SYS_HYPERVISOR=y
+CONFIG_XEN_XENBUS_FRONTEND=y
+CONFIG_XEN_GNTDEV=m
+CONFIG_XEN_GRANT_DEV_ALLOC=m
+# CONFIG_XEN_GRANT_DMA_ALLOC is not set
+CONFIG_SWIOTLB_XEN=y
+# CONFIG_XEN_PVCALLS_FRONTEND is not set
+CONFIG_XEN_PRIVCMD=y
+CONFIG_XEN_HAVE_PVMMU=y
+CONFIG_XEN_EFI=y
+CONFIG_XEN_AUTO_XLATE=y
+CONFIG_XEN_ACPI=y
+CONFIG_XEN_HAVE_VPMU=y
+CONFIG_XEN_UNPOPULATED_ALLOC=y
+# end of Xen driver support
+
+# CONFIG_GREYBUS is not set
+# CONFIG_COMEDI is not set
+# CONFIG_STAGING is not set
+CONFIG_X86_PLATFORM_DEVICES=y
+# CONFIG_ACPI_WMI is not set
+# CONFIG_ACERHDF is not set
+# CONFIG_ACER_WIRELESS is not set
+# CONFIG_ADV_SWBUTTON is not set
+# CONFIG_ASUS_WIRELESS is not set
+# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
+# CONFIG_AMILO_RFKILL is not set
+# CONFIG_FUJITSU_TABLET is not set
+# CONFIG_GPD_POCKET_FAN is not set
+# CONFIG_HP_ACCEL is not set
+# CONFIG_HP_WIRELESS is not set
+# CONFIG_SENSORS_HDAPS is not set
+# CONFIG_INTEL_HID_EVENT is not set
+# CONFIG_INTEL_MENLOW is not set
+# CONFIG_INTEL_VBTN is not set
+# CONFIG_SAMSUNG_Q10 is not set
+# CONFIG_TOSHIBA_BT_RFKILL is not set
+# CONFIG_TOSHIBA_HAPS is not set
+# CONFIG_ACPI_CMPC is not set
+# CONFIG_SYSTEM76_ACPI is not set
+# CONFIG_TOPSTAR_LAPTOP is not set
+# CONFIG_INTEL_RST is not set
+# CONFIG_INTEL_SMARTCONNECT is not set
+# CONFIG_INTEL_TURBO_MAX_3 is not set
+# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
+# CONFIG_INTEL_PUNIT_IPC is not set
+# CONFIG_INTEL_SCU_PLATFORM is not set
+# CONFIG_CHROME_PLATFORMS is not set
+# CONFIG_MELLANOX_PLATFORM is not set
+CONFIG_SURFACE_PLATFORMS=y
+# CONFIG_SURFACE_GPE is not set
+# CONFIG_SURFACE_PRO3_BUTTON is not set
+CONFIG_HAVE_CLK=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_COMMON_CLK=y
+# CONFIG_XILINX_VCU is not set
+# CONFIG_HWSPINLOCK is not set
+
+#
+# Clock Source drivers
+#
+CONFIG_CLKEVT_I8253=y
+CONFIG_I8253_LOCK=y
+CONFIG_CLKBLD_I8253=y
+# end of Clock Source drivers
+
+CONFIG_MAILBOX=y
+CONFIG_PCC=y
+# CONFIG_ALTERA_MBOX is not set
+CONFIG_IOMMU_SUPPORT=y
+
+#
+# Generic IOMMU Pagetable Support
+#
+# end of Generic IOMMU Pagetable Support
+
+#
+# Remoteproc drivers
+#
+# CONFIG_REMOTEPROC is not set
+# end of Remoteproc drivers
+
+#
+# Rpmsg drivers
+#
+# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
+# CONFIG_RPMSG_VIRTIO is not set
+# end of Rpmsg drivers
+
+# CONFIG_SOUNDWIRE is not set
+
+#
+# SOC (System On Chip) specific Drivers
+#
+
+#
+# Amlogic SoC drivers
+#
+# end of Amlogic SoC drivers
+
+#
+# Broadcom SoC drivers
+#
+# end of Broadcom SoC drivers
+
+#
+# NXP/Freescale QorIQ SoC drivers
+#
+# end of NXP/Freescale QorIQ SoC drivers
+
+#
+# i.MX SoC drivers
+#
+# end of i.MX SoC drivers
+
+#
+# Enable LiteX SoC Builder specific drivers
+#
+# end of Enable LiteX SoC Builder specific drivers
+
+#
+# Qualcomm SoC drivers
+#
+# end of Qualcomm SoC drivers
+
+# CONFIG_SOC_TI is not set
+
+#
+# Xilinx SoC drivers
+#
+# end of Xilinx SoC drivers
+# end of SOC (System On Chip) specific Drivers
+
+# CONFIG_PM_DEVFREQ is not set
+# CONFIG_EXTCON is not set
+# CONFIG_MEMORY is not set
+# CONFIG_IIO is not set
+# CONFIG_PWM is not set
+
+#
+# IRQ chip support
+#
+# end of IRQ chip support
+
+# CONFIG_IPACK_BUS is not set
+# CONFIG_RESET_CONTROLLER is not set
+
+#
+# PHY Subsystem
+#
+# CONFIG_GENERIC_PHY is not set
+# CONFIG_USB_LGM_PHY is not set
+# CONFIG_BCM_KONA_USB2_PHY is not set
+# CONFIG_PHY_PXA_28NM_HSIC is not set
+# CONFIG_PHY_PXA_28NM_USB2 is not set
+# CONFIG_PHY_INTEL_LGM_EMMC is not set
+# end of PHY Subsystem
+
+# CONFIG_POWERCAP is not set
+# CONFIG_MCB is not set
+
+#
+# Performance monitor support
+#
+# end of Performance monitor support
+
+CONFIG_RAS=y
+
+#
+# Android
+#
+# CONFIG_ANDROID is not set
+# end of Android
+
+CONFIG_LIBNVDIMM=y
+CONFIG_BLK_DEV_PMEM=y
+CONFIG_ND_BLK=y
+CONFIG_ND_CLAIM=y
+CONFIG_ND_BTT=y
+CONFIG_BTT=y
+CONFIG_ND_PFN=y
+CONFIG_NVDIMM_PFN=y
+CONFIG_NVDIMM_DAX=y
+CONFIG_DAX_DRIVER=y
+CONFIG_DAX=y
+# CONFIG_DEV_DAX is not set
+# CONFIG_NVMEM is not set
+
+#
+# HW tracing support
+#
+# CONFIG_STM is not set
+# CONFIG_INTEL_TH is not set
+# end of HW tracing support
+
+# CONFIG_FPGA is not set
+# CONFIG_TEE is not set
+# CONFIG_UNISYS_VISORBUS is not set
+# CONFIG_SIOX is not set
+# CONFIG_SLIMBUS is not set
+# CONFIG_INTERCONNECT is not set
+# CONFIG_COUNTER is not set
+# CONFIG_MOST is not set
+# end of Device Drivers
+
+#
+# File systems
+#
+CONFIG_DCACHE_WORD_ACCESS=y
+# CONFIG_VALIDATE_FS_PARSER is not set
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_BTRFS_FS is not set
+# CONFIG_NILFS2_FS is not set
+# CONFIG_F2FS_FS is not set
+# CONFIG_ZONEFS_FS is not set
+# CONFIG_FS_DAX is not set
+CONFIG_EXPORTFS=y
+# CONFIG_EXPORTFS_BLOCK_OPS is not set
+CONFIG_FILE_LOCKING=y
+CONFIG_MANDATORY_FILE_LOCKING=y
+# CONFIG_FS_ENCRYPTION is not set
+# CONFIG_FS_VERITY is not set
+CONFIG_FSNOTIFY=y
+CONFIG_DNOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_FANOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_FUSE_FS is not set
+# CONFIG_OVERLAY_FS is not set
+
+#
+# Caches
+#
+# CONFIG_FSCACHE is not set
+# end of Caches
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+# end of CD-ROM/DVD Filesystems
+
+#
+# DOS/FAT/EXFAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_EXFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+# CONFIG_NTFS3_FS is not set
+# end of DOS/FAT/EXFAT/NT Filesystems
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+# CONFIG_PROC_KCORE is not set
+CONFIG_PROC_SYSCTL=y
+CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_PROC_CHILDREN=y
+CONFIG_PROC_PID_ARCH_STATUS=y
+CONFIG_PROC_CPU_RESCTRL=y
+CONFIG_KERNFS=y
+CONFIG_SYSFS=y
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLBFS is not set
+CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_EFIVAR_FS=m
+# end of Pseudo filesystems
+
+CONFIG_MISC_FILESYSTEMS=y
+# CONFIG_ORANGEFS_FS is not set
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_ECRYPT_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_SQUASHFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_OMFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_QNX6FS_FS is not set
+# CONFIG_ROMFS_FS is not set
+CONFIG_PSTORE=y
+CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
+CONFIG_PSTORE_DEFLATE_COMPRESS=y
+# CONFIG_PSTORE_LZO_COMPRESS is not set
+# CONFIG_PSTORE_LZ4_COMPRESS is not set
+# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
+# CONFIG_PSTORE_842_COMPRESS is not set
+# CONFIG_PSTORE_ZSTD_COMPRESS is not set
+CONFIG_PSTORE_COMPRESS=y
+CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
+CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
+# CONFIG_PSTORE_CONSOLE is not set
+# CONFIG_PSTORE_PMSG is not set
+# CONFIG_PSTORE_RAM is not set
+# CONFIG_PSTORE_BLK is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+# CONFIG_EROFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+# CONFIG_NFS_FS is not set
+# CONFIG_NFSD is not set
+# CONFIG_CEPH_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+# CONFIG_9P_FS is not set
+CONFIG_NLS=y
+CONFIG_NLS_DEFAULT="iso8859-1"
+# CONFIG_NLS_CODEPAGE_437 is not set
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+# CONFIG_NLS_CODEPAGE_850 is not set
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_ASCII is not set
+# CONFIG_NLS_ISO8859_1 is not set
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+# CONFIG_NLS_MAC_ROMAN is not set
+# CONFIG_NLS_MAC_CELTIC is not set
+# CONFIG_NLS_MAC_CENTEURO is not set
+# CONFIG_NLS_MAC_CROATIAN is not set
+# CONFIG_NLS_MAC_CYRILLIC is not set
+# CONFIG_NLS_MAC_GAELIC is not set
+# CONFIG_NLS_MAC_GREEK is not set
+# CONFIG_NLS_MAC_ICELAND is not set
+# CONFIG_NLS_MAC_INUIT is not set
+# CONFIG_NLS_MAC_ROMANIAN is not set
+# CONFIG_NLS_MAC_TURKISH is not set
+# CONFIG_NLS_UTF8 is not set
+# CONFIG_DLM is not set
+# CONFIG_UNICODE is not set
+CONFIG_IO_WQ=y
+# end of File systems
+
+#
+# Security options
+#
+CONFIG_KEYS=y
+# CONFIG_KEYS_REQUEST_CACHE is not set
+# CONFIG_PERSISTENT_KEYRINGS is not set
+# CONFIG_ENCRYPTED_KEYS is not set
+# CONFIG_KEY_DH_OPERATIONS is not set
+# CONFIG_KEY_NOTIFICATIONS is not set
+# CONFIG_SECURITY_DMESG_RESTRICT is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITYFS is not set
+CONFIG_PAGE_TABLE_ISOLATION=y
+CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
+# CONFIG_HARDENED_USERCOPY is not set
+# CONFIG_FORTIFY_SOURCE is not set
+# CONFIG_STATIC_USERMODEHELPER is not set
+# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_LSM="landlock,lockdown,brute,yama,loadpin,safesetid,integrity,bpf"
+
+#
+# Kernel hardening options
+#
+
+#
+# Memory initialization
+#
+CONFIG_INIT_STACK_NONE=y
+# CONFIG_GCC_PLUGIN_STRUCTLEAK_USER is not set
+# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF is not set
+# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL is not set
+# CONFIG_GCC_PLUGIN_STACKLEAK is not set
+# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
+# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
+# end of Memory initialization
+# end of Kernel hardening options
+# end of Security options
+
+CONFIG_CRYPTO=y
+
+#
+# Crypto core or helper
+#
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_ALGAPI2=y
+CONFIG_CRYPTO_AEAD=m
+CONFIG_CRYPTO_AEAD2=y
+CONFIG_CRYPTO_SKCIPHER=y
+CONFIG_CRYPTO_SKCIPHER2=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_RNG=m
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_RNG_DEFAULT=m
+CONFIG_CRYPTO_AKCIPHER2=y
+CONFIG_CRYPTO_AKCIPHER=y
+CONFIG_CRYPTO_KPP2=y
+CONFIG_CRYPTO_KPP=m
+CONFIG_CRYPTO_ACOMP2=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
+# CONFIG_CRYPTO_USER is not set
+CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
+CONFIG_CRYPTO_GF128MUL=m
+CONFIG_CRYPTO_NULL=m
+CONFIG_CRYPTO_NULL2=y
+# CONFIG_CRYPTO_PCRYPT is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_AUTHENC=m
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Public-key cryptography
+#
+CONFIG_CRYPTO_RSA=y
+# CONFIG_CRYPTO_DH is not set
+CONFIG_CRYPTO_ECC=m
+CONFIG_CRYPTO_ECDH=m
+# CONFIG_CRYPTO_ECDSA is not set
+# CONFIG_CRYPTO_ECRDSA is not set
+# CONFIG_CRYPTO_SM2 is not set
+# CONFIG_CRYPTO_CURVE25519 is not set
+# CONFIG_CRYPTO_CURVE25519_X86 is not set
+
+#
+# Authenticated Encryption with Associated Data
+#
+CONFIG_CRYPTO_CCM=m
+CONFIG_CRYPTO_GCM=m
+# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
+# CONFIG_CRYPTO_AEGIS128 is not set
+# CONFIG_CRYPTO_AEGIS128_AESNI_SSE2 is not set
+CONFIG_CRYPTO_SEQIV=m
+CONFIG_CRYPTO_ECHAINIV=m
+
+#
+# Block modes
+#
+CONFIG_CRYPTO_CBC=m
+# CONFIG_CRYPTO_CFB is not set
+CONFIG_CRYPTO_CTR=m
+# CONFIG_CRYPTO_CTS is not set
+CONFIG_CRYPTO_ECB=m
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_OFB is not set
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_KEYWRAP is not set
+# CONFIG_CRYPTO_NHPOLY1305_SSE2 is not set
+# CONFIG_CRYPTO_NHPOLY1305_AVX2 is not set
+# CONFIG_CRYPTO_ADIANTUM is not set
+# CONFIG_CRYPTO_ESSIV is not set
+
+#
+# Hash modes
+#
+CONFIG_CRYPTO_CMAC=m
+CONFIG_CRYPTO_HMAC=m
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_VMAC is not set
+
+#
+# Digest
+#
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CRC32C_INTEL is not set
+# CONFIG_CRYPTO_CRC32 is not set
+# CONFIG_CRYPTO_CRC32_PCLMUL is not set
+# CONFIG_CRYPTO_XXHASH is not set
+# CONFIG_CRYPTO_BLAKE2B is not set
+# CONFIG_CRYPTO_BLAKE2S is not set
+# CONFIG_CRYPTO_BLAKE2S_X86 is not set
+# CONFIG_CRYPTO_CRCT10DIF is not set
+CONFIG_CRYPTO_GHASH=m
+# CONFIG_CRYPTO_POLY1305 is not set
+# CONFIG_CRYPTO_POLY1305_X86_64 is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_RMD160 is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA1_SSSE3 is not set
+# CONFIG_CRYPTO_SHA256_SSSE3 is not set
+# CONFIG_CRYPTO_SHA512_SSSE3 is not set
+CONFIG_CRYPTO_SHA256=m
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_SHA3 is not set
+# CONFIG_CRYPTO_SM3 is not set
+# CONFIG_CRYPTO_STREEBOG is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set
+
+#
+# Ciphers
+#
+CONFIG_CRYPTO_AES=m
+# CONFIG_CRYPTO_AES_TI is not set
+# CONFIG_CRYPTO_AES_NI_INTEL is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
+# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
+# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_CHACHA20 is not set
+# CONFIG_CRYPTO_CHACHA20_X86_64 is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
+# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
+# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
+# CONFIG_CRYPTO_SM4 is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
+# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
+# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
+
+#
+# Compression
+#
+CONFIG_CRYPTO_DEFLATE=y
+# CONFIG_CRYPTO_LZO is not set
+# CONFIG_CRYPTO_842 is not set
+# CONFIG_CRYPTO_LZ4 is not set
+# CONFIG_CRYPTO_LZ4HC is not set
+CONFIG_CRYPTO_ZSTD=y
+
+#
+# Random Number Generation
+#
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRYPTO_DRBG_MENU=m
+CONFIG_CRYPTO_DRBG_HMAC=y
+# CONFIG_CRYPTO_DRBG_HASH is not set
+# CONFIG_CRYPTO_DRBG_CTR is not set
+CONFIG_CRYPTO_DRBG=m
+CONFIG_CRYPTO_JITTERENTROPY=m
+# CONFIG_CRYPTO_USER_API_HASH is not set
+# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
+# CONFIG_CRYPTO_USER_API_RNG is not set
+# CONFIG_CRYPTO_USER_API_AEAD is not set
+CONFIG_CRYPTO_HASH_INFO=y
+
+#
+# Crypto library routines
+#
+CONFIG_CRYPTO_LIB_AES=m
+CONFIG_CRYPTO_LIB_ARC4=m
+# CONFIG_CRYPTO_LIB_BLAKE2S is not set
+# CONFIG_CRYPTO_LIB_CHACHA is not set
+# CONFIG_CRYPTO_LIB_CURVE25519 is not set
+CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
+# CONFIG_CRYPTO_LIB_POLY1305 is not set
+# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
+CONFIG_CRYPTO_LIB_SHA256=m
+CONFIG_CRYPTO_HW=y
+# CONFIG_CRYPTO_DEV_PADLOCK is not set
+# CONFIG_CRYPTO_DEV_AMLOGIC_GXL is not set
+CONFIG_ASYMMETRIC_KEY_TYPE=y
+CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
+CONFIG_X509_CERTIFICATE_PARSER=y
+# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
+CONFIG_PKCS7_MESSAGE_PARSER=y
+# CONFIG_PKCS7_TEST_KEY is not set
+# CONFIG_SIGNED_PE_FILE_VERIFICATION is not set
+
+#
+# Certificates for signature checking
+#
+CONFIG_SYSTEM_TRUSTED_KEYRING=y
+CONFIG_SYSTEM_TRUSTED_KEYS=""
+# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
+# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
+# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
+# end of Certificates for signature checking
+
+CONFIG_BINARY_PRINTF=y
+
+#
+# Library routines
+#
+# CONFIG_PACKING is not set
+CONFIG_BITREVERSE=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GENERIC_NET_UTILS=y
+CONFIG_GENERIC_FIND_FIRST_BIT=y
+# CONFIG_CORDIC is not set
+# CONFIG_PRIME_NUMBERS is not set
+CONFIG_RATIONAL=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_IOMAP=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
+CONFIG_ARCH_USE_SYM_ANNOTATIONS=y
+CONFIG_CRC_CCITT=m
+CONFIG_CRC16=m
+# CONFIG_CRC_T10DIF is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC32_SELFTEST is not set
+CONFIG_CRC32_SLICEBY8=y
+# CONFIG_CRC32_SLICEBY4 is not set
+# CONFIG_CRC32_SARWATE is not set
+# CONFIG_CRC32_BIT is not set
+# CONFIG_CRC64 is not set
+# CONFIG_CRC4 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+# CONFIG_CRC8 is not set
+CONFIG_XXHASH=y
+# CONFIG_RANDOM32_SELFTEST is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+CONFIG_LZ4_DECOMPRESS=y
+CONFIG_ZSTD_COMPRESS=y
+CONFIG_ZSTD_DECOMPRESS=y
+CONFIG_XZ_DEC=y
+CONFIG_XZ_DEC_X86=y
+CONFIG_XZ_DEC_POWERPC=y
+CONFIG_XZ_DEC_IA64=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_SPARC=y
+CONFIG_XZ_DEC_BCJ=y
+# CONFIG_XZ_DEC_TEST is not set
+CONFIG_DECOMPRESS_GZIP=y
+CONFIG_DECOMPRESS_BZIP2=y
+CONFIG_DECOMPRESS_LZMA=y
+CONFIG_DECOMPRESS_XZ=y
+CONFIG_DECOMPRESS_LZO=y
+CONFIG_DECOMPRESS_LZ4=y
+CONFIG_DECOMPRESS_ZSTD=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_INTERVAL_TREE=y
+CONFIG_XARRAY_MULTI=y
+CONFIG_ASSOCIATIVE_ARRAY=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAS_DMA=y
+CONFIG_DMA_OPS=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_HAS_FORCE_DMA_UNENCRYPTED=y
+CONFIG_SWIOTLB=y
+CONFIG_DMA_COHERENT_POOL=y
+# CONFIG_DMA_CMA is not set
+# CONFIG_DMA_API_DEBUG is not set
+CONFIG_SGL_ALLOC=y
+CONFIG_CPU_RMAP=y
+CONFIG_DQL=y
+CONFIG_NLATTR=y
+CONFIG_CLZ_TAB=y
+# CONFIG_IRQ_POLL is not set
+CONFIG_MPILIB=y
+CONFIG_OID_REGISTRY=y
+CONFIG_UCS2_STRING=y
+CONFIG_HAVE_GENERIC_VDSO=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_VDSO_TIME_NS=y
+CONFIG_ARCH_HAS_PMEM_API=y
+CONFIG_MEMREGION=y
+CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
+CONFIG_ARCH_HAS_COPY_MC=y
+CONFIG_ARCH_STACKWALK=y
+CONFIG_SBITMAP=y
+# CONFIG_STRING_SELFTEST is not set
+# end of Library routines
+
+#
+# Kernel hacking
+#
+
+#
+# printk and dmesg options
+#
+# CONFIG_PRINTK_TIME is not set
+# CONFIG_PRINTK_CALLER is not set
+CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
+CONFIG_CONSOLE_LOGLEVEL_QUIET=4
+CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
+# CONFIG_DYNAMIC_DEBUG is not set
+# CONFIG_DYNAMIC_DEBUG_CORE is not set
+# CONFIG_SYMBOLIC_ERRNAME is not set
+# end of printk and dmesg options
+
+#
+# Compile-time checks and compiler options
+#
+CONFIG_FRAME_WARN=2048
+# CONFIG_STRIP_ASM_SYMS is not set
+# CONFIG_HEADERS_INSTALL is not set
+# CONFIG_DEBUG_SECTION_MISMATCH is not set
+CONFIG_SECTION_MISMATCH_WARN_ONLY=y
+CONFIG_STACK_VALIDATION=y
+# end of Compile-time checks and compiler options
+
+#
+# Generic Kernel Debugging Instruments
+#
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_DEBUG_FS is not set
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
+# CONFIG_UBSAN is not set
+CONFIG_HAVE_ARCH_KCSAN=y
+CONFIG_HAVE_KCSAN_COMPILER=y
+# end of Generic Kernel Debugging Instruments
+
+# CONFIG_DEBUG_KERNEL is not set
+
+#
+# Memory Debugging
+#
+# CONFIG_PAGE_EXTENSION is not set
+# CONFIG_PAGE_POISONING is not set
+# CONFIG_DEBUG_RODATA_TEST is not set
+CONFIG_ARCH_HAS_DEBUG_WX=y
+# CONFIG_DEBUG_WX is not set
+CONFIG_GENERIC_PTDUMP=y
+# CONFIG_SLUB_DEBUG_ON is not set
+# CONFIG_SLUB_STATS is not set
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
+# CONFIG_DEBUG_VM_PGTABLE is not set
+CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y
+CONFIG_HAVE_ARCH_KASAN=y
+CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
+CONFIG_CC_HAS_KASAN_GENERIC=y
+CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
+# CONFIG_KASAN is not set
+CONFIG_HAVE_ARCH_KFENCE=y
+# CONFIG_KFENCE is not set
+# end of Memory Debugging
+
+#
+# Debug Oops, Lockups and Hangs
+#
+# CONFIG_PANIC_ON_OOPS is not set
+CONFIG_PANIC_ON_OOPS_VALUE=0
+CONFIG_PANIC_TIMEOUT=0
+CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
+# CONFIG_TEST_LOCKUP is not set
+# end of Debug Oops, Lockups and Hangs
+
+#
+# Scheduler Debugging
+#
+CONFIG_SCHED_INFO=y
+# end of Scheduler Debugging
+
+# CONFIG_DEBUG_TIMEKEEPING is not set
+
+#
+# Lock Debugging (spinlocks, mutexes, etc...)
+#
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+# CONFIG_WW_MUTEX_SELFTEST is not set
+# end of Lock Debugging (spinlocks, mutexes, etc...)
+
+# CONFIG_DEBUG_IRQFLAGS is not set
+# CONFIG_STACKTRACE is not set
+# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
+
+#
+# Debug kernel data structures
+#
+# CONFIG_BUG_ON_DATA_CORRUPTION is not set
+# end of Debug kernel data structures
+
+#
+# RCU Debugging
+#
+CONFIG_RCU_CPU_STALL_TIMEOUT=21
+# end of RCU Debugging
+
+CONFIG_USER_STACKTRACE_SUPPORT=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_FENTRY=y
+CONFIG_HAVE_OBJTOOL_MCOUNT=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_TRACING_SUPPORT=y
+# CONFIG_FTRACE is not set
+# CONFIG_SAMPLES is not set
+CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
+CONFIG_STRICT_DEVMEM=y
+# CONFIG_IO_STRICT_DEVMEM is not set
+
+#
+# x86 Debugging
+#
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
+CONFIG_X86_VERBOSE_BOOTUP=y
+CONFIG_EARLY_PRINTK=y
+# CONFIG_EFI_PGT_DUMP is not set
+CONFIG_HAVE_MMIOTRACE_SUPPORT=y
+CONFIG_IO_DELAY_0X80=y
+# CONFIG_IO_DELAY_0XED is not set
+# CONFIG_IO_DELAY_UDELAY is not set
+# CONFIG_IO_DELAY_NONE is not set
+CONFIG_UNWINDER_ORC=y
+# CONFIG_UNWINDER_FRAME_POINTER is not set
+# end of x86 Debugging
+
+#
+# Kernel Testing and Coverage
+#
+# CONFIG_KUNIT is not set
+CONFIG_ARCH_HAS_KCOV=y
+CONFIG_CC_HAS_SANCOV_TRACE_PC=y
+# CONFIG_KCOV is not set
+CONFIG_RUNTIME_TESTING_MENU=y
+# CONFIG_TEST_LIST_SORT is not set
+# CONFIG_TEST_MIN_HEAP is not set
+# CONFIG_TEST_SORT is not set
+# CONFIG_TEST_DIV64 is not set
+# CONFIG_REED_SOLOMON_TEST is not set
+# CONFIG_ATOMIC64_SELFTEST is not set
+# CONFIG_TEST_HEXDUMP is not set
+# CONFIG_TEST_STRING_HELPERS is not set
+# CONFIG_TEST_STRSCPY is not set
+# CONFIG_TEST_KSTRTOX is not set
+# CONFIG_TEST_PRINTF is not set
+# CONFIG_TEST_BITMAP is not set
+# CONFIG_TEST_UUID is not set
+# CONFIG_TEST_XARRAY is not set
+# CONFIG_TEST_OVERFLOW is not set
+# CONFIG_TEST_RHASHTABLE is not set
+# CONFIG_TEST_HASH is not set
+# CONFIG_TEST_IDA is not set
+# CONFIG_TEST_LKM is not set
+# CONFIG_TEST_BITOPS is not set
+# CONFIG_TEST_VMALLOC is not set
+# CONFIG_TEST_USER_COPY is not set
+# CONFIG_TEST_BPF is not set
+# CONFIG_TEST_BLACKHOLE_DEV is not set
+# CONFIG_FIND_BIT_BENCHMARK is not set
+# CONFIG_TEST_FIRMWARE is not set
+# CONFIG_TEST_SYSCTL is not set
+# CONFIG_TEST_UDELAY is not set
+# CONFIG_TEST_STATIC_KEYS is not set
+# CONFIG_TEST_MEMCAT_P is not set
+# CONFIG_TEST_STACKINIT is not set
+# CONFIG_TEST_MEMINIT is not set
+# CONFIG_TEST_HMM is not set
+# CONFIG_TEST_FREE_PAGES is not set
+# CONFIG_TEST_FPU is not set
+CONFIG_ARCH_USE_MEMTEST=y
+# CONFIG_MEMTEST is not set
+# end of Kernel Testing and Coverage
+# end of Kernel hacking