+ selftests-damon-sysfs_memcg_path_leak-define-ksft_skip.patch added to mm-hotfixes-unstable branch

+ selftests-damon-sysfs_memcg_path_leak-define-ksft_skip.patch added to mm-hotfixes-unstable branch

[Andrew Morton]

The patch titled
     Subject: selftests/damon/sysfs_memcg_path_leak: define ksft_skip
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     selftests-damon-sysfs_memcg_path_leak-define-ksft_skip.patch

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

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: SJ Park <sj@kernel.org>
Subject: selftests/damon/sysfs_memcg_path_leak: define ksft_skip
Date: Mon, 02 Nov 2026 06:46:26 -0800

sysfs_memcg_path_leak test uses $ksft_skip without defining it.  As a
result, the test is marked as passed while it was skipped, like below.

    $ ./sysfs_memcg_path_leak.sh
    Run as root
    $ echo $?
    0

Users who run the test could therefore wrongly believe the test was run
and passed while it was skipped.

Define the value at the beginning of the test.  After this patch, the
exit code reflects the skip.

    $ ./sysfs_memcg_path_leak.sh
    Run as root
    $ echo $?
    4

Link: https://lore.kernel.org/20261102144627.88843-4-sj@kernel.org
Fixes: dfa3cf0bc018 ("selftets/damon: add a test for memcg_path leak")
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Closes: https://sashiko.dev/#/bug/linux-a0456336-0608-4fec-ac22-0ee61d1d6a91
Reviewed-by: Aveline Noir <jm5905938@gmail.com>
Tested-by: Aveline Noir <jm5905938@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Wang Xiaolei <xiaoleiwangxiaolei@gmail.com>
Cc: <stable@vger.kernel.org> # 6.17.x
---

 tools/testing/selftests/damon/sysfs_memcg_path_leak.sh |    3 +++
 1 file changed, 3 insertions(+)

--- a/tools/testing/selftests/damon/sysfs_memcg_path_leak.sh~selftests-damon-sysfs_memcg_path_leak-define-ksft_skip
+++ a/tools/testing/selftests/damon/sysfs_memcg_path_leak.sh
@@ -1,6 +1,9 @@
 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
 if [ $EUID -ne 0 ]
 then
 	echo "Run as root"
_

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

mm-damon-sysfs-schemes-hold-damon_sysfs_lock-in-target_metric_store.patch
mm-damon-core-move-static-variable-last_nr_regions-to-damon_ctx.patch
mm-damon-core-move-static-variable-rotation-to-damon_ctx.patch
selftests-damon-sysfs_memcg_path_leak-define-ksft_skip.patch
mm-damon-core-copy-only-installed-probe-in-damon_split_region_at.patch