This is a note to let you know that I've just added the patch titled
mm/damon/sysfs-schemes: fix wrong DAMOS tried regions update timeout setup
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mm-damon-sysfs-schemes-fix-wrong-damos-tried-regions-update-timeout-setup.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b9e4bc1046d20e0623a80660ef8627448056f817 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@xxxxxxxxxx>
Date: Fri, 2 Feb 2024 11:19:56 -0800
Subject: mm/damon/sysfs-schemes: fix wrong DAMOS tried regions update timeout setup
From: SeongJae Park <sj@xxxxxxxxxx>
commit b9e4bc1046d20e0623a80660ef8627448056f817 upstream.
DAMON sysfs interface's update_schemes_tried_regions command has a timeout
of two apply intervals of the DAMOS scheme. Having zero value DAMOS
scheme apply interval means it will use the aggregation interval as the
value. However, the timeout setup logic is mistakenly using the sampling
interval insted of the aggregartion interval for the case. This could
cause earlier-than-expected timeout of the command. Fix it.
Link: https://lkml.kernel.org/r/20240202191956.88791-1-sj@xxxxxxxxxx
Fixes: 7d6fa31a2fd7 ("mm/damon/sysfs-schemes: add timeout for update_schemes_tried_regions")
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 6.7.x
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
mm/damon/sysfs-schemes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -1928,7 +1928,7 @@ static void damos_tried_regions_init_upd
sysfs_regions->upd_timeout_jiffies = jiffies +
2 * usecs_to_jiffies(scheme->apply_interval_us ?
scheme->apply_interval_us :
- ctx->attrs.sample_interval);
+ ctx->attrs.aggr_interval);
}
}
Patches currently in stable-queue which might be from sj@xxxxxxxxxx are
queue-6.7/mm-damon-sysfs-schemes-fix-wrong-damos-tried-regions-update-timeout-setup.patch
