The patch titled Subject: mm/damon/sysfs-schemes: fix wrong DAMOS tried regions update timeout setup has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-damon-sysfs-schemes-fix-wrong-damos-tried-regions-update-timeout-setup.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: SeongJae Park sj@kernel.org Subject: mm/damon/sysfs-schemes: fix wrong DAMOS tried regions update timeout setup Date: Fri, 2 Feb 2024 11:19:56 -0800

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@kernel.org Fixes: 7d6fa31a2fd7 ("mm/damon/sysfs-schemes: add timeout for update_schemes_tried_regions") Signed-off-by: SeongJae Park sj@kernel.org Cc: stable@vger.kernel.org # 6.7.x Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

mm/damon/sysfs-schemes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/damon/sysfs-schemes.c~mm-damon-sysfs-schemes-fix-wrong-damos-tried-regions-update-timeout-setup +++ a/mm/damon/sysfs-schemes.c @@ -2194,7 +2194,7 @@ 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); } }

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Patches currently in -mm which might be from sj@kernel.org are

mm-damon-sysfs-schemes-fix-wrong-damos-tried-regions-update-timeout-setup.patch docs-admin-guide-mm-damon-usage-use-sysfs-interface-for-tracepoints-example.patch mm-damon-rename-config_damon_dbgfs-to-damon_dbgfs_deprecated.patch mm-damon-dbgfs-implement-deprecation-notice-file.patch mm-damon-dbgfs-make-debugfs-interface-deprecation-message-a-macro.patch docs-admin-guide-mm-damon-usage-document-deprecated-file-of-damon-debugfs-interface.patch selftets-damon-prepare-for-monitor_on-file-renaming.patch mm-damon-dbgfs-rename-monitor_on-file-to-monitor_on_deprecated.patch docs-admin-guide-mm-damon-usage-update-for-monitor_on-renaming.patch docs-translations-damon-usage-update-for-monitor_on-renaming.patch