diff options
Diffstat (limited to '0029-ZEN-INTERACTIVE-dm-crypt-Disable-workqueues-for-cryp.patch')
| -rw-r--r-- | 0029-ZEN-INTERACTIVE-dm-crypt-Disable-workqueues-for-cryp.patch | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/0029-ZEN-INTERACTIVE-dm-crypt-Disable-workqueues-for-cryp.patch b/0029-ZEN-INTERACTIVE-dm-crypt-Disable-workqueues-for-cryp.patch deleted file mode 100644 index 7f3c9554db69..000000000000 --- a/0029-ZEN-INTERACTIVE-dm-crypt-Disable-workqueues-for-cryp.patch +++ /dev/null @@ -1,48 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Steven Barrett <steven@liquorix.net> -Date: Sat, 21 May 2022 15:15:09 -0500 -Subject: [PATCH] ZEN: INTERACTIVE: dm-crypt: Disable workqueues for crypto ops - -Queueing in dm-crypt for crypto operations reduces performance on modern -systems. As discussed in an article from Cloudflare, they discovered -that queuing was introduced because the crypto subsystem used to be -synchronous. Since it's now asynchronous, we get double queueing when -using the subsystem through dm-crypt. This is obviously undesirable and -reduces throughput and increases latency. - -Disable queueing when using our Zen Interactive configuration. - -Fixes: https://github.com/zen-kernel/zen-kernel/issues/282 ---- - drivers/md/dm-crypt.c | 5 +++++ - init/Kconfig | 1 + - 2 files changed, 6 insertions(+) - -diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c -index 159c6806c19b8991fdcf33121f6c130fa1882f7f..f092d69da90afc8d429355c59bbdb60eb9d8a476 100644 ---- a/drivers/md/dm-crypt.c -+++ b/drivers/md/dm-crypt.c -@@ -3137,6 +3137,11 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar - } - } - -+#ifdef CONFIG_ZEN_INTERACTIVE -+ set_bit(DM_CRYPT_NO_READ_WORKQUEUE, &cc->flags); -+ set_bit(DM_CRYPT_NO_WRITE_WORKQUEUE, &cc->flags); -+#endif -+ - return 0; - } - -diff --git a/init/Kconfig b/init/Kconfig -index a949de64fd4a73543722c96aaa9c7e534bb4c26a..ebc418581f41d0816c76981b3fa5f4d9306ded98 100644 ---- a/init/Kconfig -+++ b/init/Kconfig -@@ -126,6 +126,7 @@ config ZEN_INTERACTIVE - - Default scheduler for SQ..: mq-deadline -> bfq - Default scheduler for MQ..: none -> kyber -+ DM-Crypt Workqueues.......: on -> off - - --- Virtual Memory Subsystem --------------------------- - |