From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D1FD243E4B2 for ; Tue, 28 Apr 2026 14:49:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777387753; cv=none; b=pUxTSn7M8Y4YwyZ/VihlovAOY0QSSGTEn+JNWbNiN4hFXSv9Voy6miVcmwW33Tv2eAEwLfQ8/ZlbvNUQC2ms4udE7uQ8oU4lAAfRbYYRneBX1UYguKC/CgmU5eZ7NVgzRE+nHD9o8SnvB2t494wE4w69nrY+M8JkiyPk+JdiwsM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777387753; c=relaxed/simple; bh=eBsRigWb6+d0cr9cNDaUpkiaZ8pr1ABGabjj+B89OK8=; h=Date:To:From:Subject:Message-Id; b=SDUnXz459AWnOF6G9pkCkNIA19jSEtcMichC0PJMWBg7flx4D5a8zcXtn+SQXPDPjllDFcHnWb/nO3xvRMHmIkBZDm4HOJ/bLn4apf87cAbkrJh8el8mfC9ePSUvTWrwq5OHf7BsoAvUNGKj9IMU2e60lxS67wm5R1PI+j8OMEE= 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=jrBzNwE4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="jrBzNwE4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 704E6C2BCAF; Tue, 28 Apr 2026 14:49:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1777387753; bh=eBsRigWb6+d0cr9cNDaUpkiaZ8pr1ABGabjj+B89OK8=; h=Date:To:From:Subject:From; b=jrBzNwE4BHKwdYYCHZ9bgRTLuSDNdljGv08AslCtJIPvt0WK+diAm9a5NctkLU1QG FxVYkVSoa6IjsyIdIPk7Zt76uNgsq9eiyg4yhR8ZNQ8X+7QYT7tYBAdgFiWBSR8Gvz QUuhlr5vXUreofy82ugqRhzeNkHR9u+31Cm4eAZM= Date: Tue, 28 Apr 2026 07:49:12 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + selftests-damon-_damon_sysfs-support-failed-region-quota-charge-ratio.patch added to mm-new branch Message-Id: <20260428144913.704E6C2BCAF@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: selftests/damon/_damon_sysfs: support failed region quota charge ratio has been added to the -mm mm-new branch. Its filename is selftests-damon-_damon_sysfs-support-failed-region-quota-charge-ratio.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-damon-_damon_sysfs-support-failed-region-quota-charge-ratio.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: SeongJae Park Subject: selftests/damon/_damon_sysfs: support failed region quota charge ratio Date: Mon, 27 Apr 2026 18:33:58 -0700 Extend _damon_sysfs.py for DAMOS action failed regions quota charge ratio setup, so that we can add kselftest for the new feature. Link: https://lore.kernel.org/20260428013402.115171-10-sj@kernel.org Signed-off-by: SeongJae Park Cc: Brendan Higgins Cc: David Hildenbrand Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- tools/testing/selftests/damon/_damon_sysfs.py | 21 ++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) --- a/tools/testing/selftests/damon/_damon_sysfs.py~selftests-damon-_damon_sysfs-support-failed-region-quota-charge-ratio +++ a/tools/testing/selftests/damon/_damon_sysfs.py @@ -132,14 +132,17 @@ class DamosQuota: goals = None # quota goals goal_tuner = None # quota goal tuner reset_interval_ms = None # quota reset interval + fail_charge_num = None + fail_charge_denom = None weight_sz_permil = None weight_nr_accesses_permil = None weight_age_permil = None scheme = None # owner scheme def __init__(self, sz=0, ms=0, goals=None, goal_tuner='consist', - reset_interval_ms=0, weight_sz_permil=0, - weight_nr_accesses_permil=0, weight_age_permil=0): + reset_interval_ms=0, fail_charge_num=0, fail_charge_denom=0, + weight_sz_permil=0, weight_nr_accesses_permil=0, + weight_age_permil=0): self.sz = sz self.ms = ms self.reset_interval_ms = reset_interval_ms @@ -151,6 +154,8 @@ class DamosQuota: for idx, goal in enumerate(self.goals): goal.idx = idx goal.quota = self + self.fail_charge_num = fail_charge_num + self.fail_charge_denom = fail_charge_denom def sysfs_dir(self): return os.path.join(self.scheme.sysfs_dir(), 'quotas') @@ -197,6 +202,18 @@ class DamosQuota: os.path.join(self.sysfs_dir(), 'goal_tuner'), self.goal_tuner) if err is not None: return err + + err = write_file( + os.path.join(self.sysfs_dir(), 'fail_charge_num'), + self.fail_charge_num) + if err is not None: + return err + err = write_file( + os.path.join(self.sysfs_dir(), 'fail_charge_denom'), + self.fail_charge_denom) + if err is not None: + return err + return None class DamosWatermarks: _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-sysfs-schemes-call-missing-mem_cgroup_iter_break.patch mm-damon-fix-damos_stat-tracepoint-format-for-sz_applied.patch mm-damon-core-make-charge_addr_from-aware-of-end-address-exclusivity.patch docs-mm-damon-maintainer-profile-add-ai-review-usage-guideline.patch mm-damon-core-introduce-damon_ctx-paused.patch mm-damon-sysfs-add-pause-file-under-context-dir.patch docs-mm-damon-design-update-for-context-pause-resume-feature.patch docs-admin-guide-mm-damon-usage-update-for-pause-file.patch docs-abi-damon-update-for-pause-sysfs-file.patch mm-damon-tests-core-kunit-test-pause-commitment.patch selftests-damon-_damon_sysfs-support-pause-file-staging.patch selftests-damon-drgn_dump_damon_status-dump-pause.patch selftests-damon-sysfspy-check-pause-on-assert_ctx_committed.patch selftests-damon-sysfspy-pause-damon-before-dumping-status.patch mm-damon-core-handle-min_region_sz-remaining-quota-as-empty.patch mm-damon-core-merge-regions-after-applying-damos-schemes.patch mm-damon-core-introduce-failed-region-quota-charge-ratio.patch mm-damon-sysfs-schemes-implement-fail_charge_numdenom-files.patch docs-mm-damon-design-document-fail_charge_numdenom.patch docs-admin-guide-mm-damon-usage-document-fail_charge_numdenom-files.patch docs-abi-damon-document-fail_charge_numdenom.patch mm-damon-tests-core-kunit-test-fail_charge_numdenom-committing.patch selftests-damon-_damon_sysfs-support-failed-region-quota-charge-ratio.patch selftests-damon-drgn_dump_damon_status-support-failed-region-quota-charge-ratio.patch selftests-damon-sysfspy-test-failed-region-quota-charge-ratio.patch