From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 21D532D780C for ; Wed, 29 Jul 2026 04:15:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785298538; cv=none; b=Jhf5mR17zLoSBsO32rUZZJz07Kc98QO2iYPVxKnnFOHg+i2SLfL8KrDogU5QZGYZB1KOGc/+5qo4aw3K5xtj3AOPm4MmIQbZQzf150Vdd6cGn0c5T1/E7wMiHeeFfgTDVU0dfruLNArUH/ol4lnRd+KoSWbocGMmbmLhKJYRzY4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785298538; c=relaxed/simple; bh=YAFQnkGeupP/Nf/U6sMYOLC1Wgnnacj8k6VvGKI3yBc=; h=Date:To:From:Subject:Message-Id; b=BDY/sNjsEZe2iq+Bc3+JFmdKRj7qm69n343x6yRmci+e5L64pWcBaXswDqL/im3mNJLweernh1zhb6aTWGYD4qAVTXChV1YglnpyLlAzFxJhu6akTMk0hohVMEdvgYWdYNUKcl6nhni7oOmplsanz63MQKDMpx7GEHgy6yjqxso= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Tvfhotpc; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Tvfhotpc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBADE1F00A3D; Wed, 29 Jul 2026 04:15:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1785298537; bh=xooR41B71/BQmby4/o56bw6Aoaz3lUP2GGhho2MpeVw=; h=Date:To:From:Subject; b=Tvfhotpcdtluj9vSxy+8js64Ykb9UjtJWHe8Ps+QHpuguYOkdINfv4fA9hcjj6NDZ QutFbpcvsH1A7HW48IAU7aa4cHuVF3WplF8V3fCyt7uofiw5VuzG8+9xvKQbMr4Kec CJ7uDpOBFyXLRO3K4BRni+3FkBQrUzxJUxl6nXhE= Date: Tue, 28 Jul 2026 21:15:36 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,niecheng1@uniontech.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] selftests-damon-sysfspy-validate-memcg_path-staging-readback.patch removed from -mm tree Message-Id: <20260729041536.DBADE1F00A3D@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: selftests/damon/sysfs.py: validate memcg_path staging readback has been removed from the -mm tree. Its filename was selftests-damon-sysfspy-validate-memcg_path-staging-readback.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Cheng Nie Subject: selftests/damon/sysfs.py: validate memcg_path staging readback Date: Mon, 29 Jun 2026 07:48:11 -0700 Add a dedicated test at the end of main() that stages memcg_path via sysfs and verifies its readback. Configure the memcg filter before start(), do not call commit(), and ignore start() failures so the test does not depend on CONFIG_MEMCG or cgroup layout. Call stop() for cleanup without checking its return value. Link: https://lore.kernel.org/D2B37130D38E09AC+20260601090634.241864-1-niecheng1@uniontech.com Link: https://lore.kernel.org/20260629144812.134159-3-sj@kernel.org Signed-off-by: Cheng Nie Signed-off-by: SJ Park Reviewed-by: SJ Park Signed-off-by: Andrew Morton --- tools/testing/selftests/damon/sysfs.py | 31 +++++++++++++++++++++++ 1 file changed, 31 insertions(+) --- a/tools/testing/selftests/damon/sysfs.py~selftests-damon-sysfspy-validate-memcg_path-staging-readback +++ a/tools/testing/selftests/damon/sysfs.py @@ -250,6 +250,35 @@ def assert_ctxs_committed(kdamonds): if ctx in ctxs_paused_for_dump: ctx.pause = False +def test_memcg_filter_memcg_path_staging(): + global kdamonds + memcg_filter = _damon_sysfs.DamosFilter( + type_='memcg', matching=True, allow=True, memcg_path='/') + kdamonds = _damon_sysfs.Kdamonds( + [_damon_sysfs.Kdamond( + contexts=[_damon_sysfs.DamonCtx( + targets=[_damon_sysfs.DamonTarget(pid=-1)], + schemes=[_damon_sysfs.Damos( + ops_filters=[memcg_filter])], + )])]) + kdamonds.start() + + shown, rd_err = _damon_sysfs.read_file( + os.path.join(memcg_filter.sysfs_dir(), 'memcg_path')) + if rd_err is not None: + print('memcg_path staging: sysfs read (%s)' % rd_err) + kdamonds.stop() + exit(1) + if shown.rstrip('\n') != memcg_filter.memcg_path: + print('memcg_path staging: memcg_path readback ' + '(shown=%s, expected=%s)' % + (shown.rstrip('\n'), memcg_filter.memcg_path)) + kdamonds.stop() + exit(1) + + kdamonds.stop() + kdamonds = None + def main(): global kdamonds kdamonds = _damon_sysfs.Kdamonds( @@ -356,5 +385,7 @@ def main(): assert_ctxs_committed(kdamonds) kdamonds.stop() + test_memcg_filter_memcg_path_staging() + if __name__ == '__main__': main() _ Patches currently in -mm which might be from niecheng1@uniontech.com are