diff options
Diffstat (limited to '0004-Linux-lock-the-parent-dentry-for-lookup_one_len.patch')
| -rw-r--r-- | 0004-Linux-lock-the-parent-dentry-for-lookup_one_len.patch | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/0004-Linux-lock-the-parent-dentry-for-lookup_one_len.patch b/0004-Linux-lock-the-parent-dentry-for-lookup_one_len.patch deleted file mode 100644 index 52856dcbcc56..000000000000 --- a/0004-Linux-lock-the-parent-dentry-for-lookup_one_len.patch +++ /dev/null @@ -1,35 +0,0 @@ -From a42d68d51dc8c864cf5fde02a8f0277e82ca8696 Mon Sep 17 00:00:00 2001 -From: Benjamin Kaduk <kaduk@mit.edu> -Date: Sun, 1 May 2016 19:39:55 -0400 -Subject: [PATCH 4/5] Linux: lock the parent dentry for lookup_one_len() - -During review of the changes in Linux 4.5, it was noted that -callers of lookup_one_len() are obligated to hold the i_mutex -on the parent directory, though we do not currently do so. -Take the lock around the call as needed. - -The only call to lookup_one_len() occurs in afs_linux_sillyrename(), -so may workloads may not encounter this codepath. - -Change-Id: I4d566c9a704173973c062c3d38f1d481f76c42da ---- - src/afs/LINUX/osi_vnodeops.c | 2 ++ - 1 file changed, 2 insertions(+) - -diff --git a/src/afs/LINUX/osi_vnodeops.c b/src/afs/LINUX/osi_vnodeops.c -index 00b41ef..532c9e9 100644 ---- a/src/afs/LINUX/osi_vnodeops.c -+++ b/src/afs/LINUX/osi_vnodeops.c -@@ -1654,7 +1654,9 @@ afs_linux_sillyrename(struct inode *dir, struct dentry *dentry, - __name = afs_newname(); - AFS_GUNLOCK(); - -+ afs_linux_lock_inode(dentry->d_parent->d_inode); - __dp = lookup_one_len(__name, dentry->d_parent, strlen(__name)); -+ afs_linux_unlock_inode(dentry->d_parent->d_inode); - - if (IS_ERR(__dp)) { - osi_FreeSmallSpace(__name); --- -2.8.2 - |