mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure

Browse source

commit 9814cc832b upstream.

When a context DAMON sysfs directory setup is failed after setup of attrs/
directory, subdirectories of attrs/ directory are not cleaned up.  As a
result, DAMON sysfs interface is nearly broken until the system reboots,
and the memory for the unremoved directory is leaked.

Cleanup the directories under such failures.

Link: https://lkml.kernel.org/r/20251225023043.18579-3-sj@kernel.org
Fixes: c951cd3b89 ("mm/damon: implement a minimal stub for sysfs-based DAMON interface")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: chongjiapeng <jiapeng.chong@linux.alibaba.com>
Cc: <stable@vger.kernel.org> # 5.18.x
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

SeongJae Park 2025-12-24 18:30:35 -08:00 • committed by Greg Kroah-Hartman

parent 89508b6779

commit db7dfe78fc

1 changed files with 3 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

5

mm/damon/sysfs.c

View file