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 EEC79486654 for ; Tue, 1 Sep 2026 17:17:46 +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=1788283068; cv=none; b=JOl7FjxRWO58t883DIZjBffXLNj87pXcwO4mOMrn5nscvNM9pguTRILDK5wDPyw+67N9wZ0L3F7Gh7dMYYF+NFIdDP/UudCTcdl1MLZCmzJWW+TxjGpowqcih4GH+GFdCjzZtnLzZuMKAftOYwPG3+bJ/bAgLK+OjC7g85LCn9s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788283068; c=relaxed/simple; bh=L90ioyqTS8m+a7yXTUcTXmSoM1xbKJi8PQTTJjkD67I=; h=Date:To:From:Subject:Message-Id; b=VK6wd78zg2khf+JtYwR3L2Io6K4QLMYKnuh6ReqJ8L5ifGtkImqsjQqwhq2qX3ghdQz4RtX1AO+W1hqeFew2b+E6K+QT1ApXDUym729VU1IJ3XRbtBcVSjpWk2F5S6Br/dUpT40nMAFrlDLtor7XpnaJaacQWYLMxw37iOmRAEs= 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=HIMmlxEC; 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="HIMmlxEC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA8941F00A3A; Tue, 1 Sep 2026 17:17:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1788283066; bh=yoq7ERv+KsJH1IvfpTb8gAW7AMkYLRpOiACSXJJPJQQ=; h=Date:To:From:Subject; b=HIMmlxECZq+dmErVpLeY2Bb/7+VL1n4hjRcjaM54OAA8vexyUd6d7KAkbBhIjLMIo LCJM593dsRgPVpaRvP4j+7GaNTclwbOea/lyyNflUqFxLdVCWdBvQ1Vd1h3S1OeVmD usY8PEo3TJU3jggny+gBJkxdH4yTYFgXQ/xDdr7c= Date: Tue, 01 Sep 2026 10:17:46 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-damon-core-commit-preps.patch added to mm-new branch Message-Id: <20260901171746.BA8941F00A3A@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/damon/core: commit preps has been added to the -mm mm-new branch. Its filename is mm-damon-core-commit-preps.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-core-commit-preps.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: SJ Park Subject: mm/damon/core: commit preps Date: Tue, 1 Sep 2026 06:24:53 -0700 damon_commit_probes() is ignoring damon_prep. Commit the prep actions, too. Link: https://lore.kernel.org/20260901132506.99243-7-sj@kernel.org Signed-off-by: SJ Park Cc: David Hildenbrand Cc: Jonathan Corbet Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Randy Dunlap Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- mm/damon/core.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) --- a/mm/damon/core.c~mm-damon-core-commit-preps +++ a/mm/damon/core.c @@ -129,11 +129,34 @@ void damon_add_prep(struct damon_probe * list_add_tail(&prep->list, &p->preps); } +static void damon_del_prep(struct damon_prep *p) +{ + list_del(&p->list); +} + static void damon_free_prep(struct damon_prep *p) { kfree(p); } +static void damon_destroy_prep(struct damon_prep *p) +{ + damon_del_prep(p); + damon_free_prep(p); +} + +static struct damon_prep *damon_nth_prep(int n, struct damon_probe *p) +{ + struct damon_prep *prep; + int i = 0; + + damon_for_each_prep(prep, p) { + if (i++ == n) + return prep; + } + return NULL; +} + struct damon_filter *damon_new_filter(enum damon_filter_type type, bool matching, bool allow) { @@ -1699,6 +1722,36 @@ out: return err; } +static void damon_commit_prep(struct damon_prep *dst, struct damon_prep *src) +{ + dst->action = src->action; +} + +static int damon_commit_preps(struct damon_probe *dst, struct damon_probe *src) +{ + struct damon_prep *dst_prep, *next, *src_prep, *new_prep; + int i = 0, j = 0; + + damon_for_each_prep_safe(dst_prep, next, dst) { + src_prep = damon_nth_prep(i++, src); + if (src_prep) + damon_commit_prep(dst_prep, src_prep); + else + damon_destroy_prep(dst_prep); + } + + damon_for_each_prep_safe(src_prep, next, src) { + if (j++ < i) + continue; + + new_prep = damon_new_prep(src_prep->action); + if (!new_prep) + return -ENOMEM; + damon_add_prep(dst, new_prep); + } + return 0; +} + static void damon_commit_filter(struct damon_filter *dst, struct damon_filter *src) { @@ -1757,6 +1810,9 @@ static int damon_commit_probes(struct da src_probe = damon_nth_probe(i++, src); if (src_probe) { dst_probe->weight = src_probe->weight; + err = damon_commit_preps(dst_probe, src_probe); + if (err) + return err; err = damon_commit_filters(dst_probe, src_probe); if (err) return err; @@ -1774,6 +1830,9 @@ static int damon_commit_probes(struct da return -ENOMEM; damon_add_probe(dst, new_probe); new_probe->weight = src_probe->weight; + err = damon_commit_preps(new_probe, src_probe); + if (err) + return err; err = damon_commit_filters(new_probe, src_probe); if (err) return err; _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-core-skip-applying-scheme-if-region-split-for-quota-fails.patch mm-damon-paddr-respect-folio-end-for-damos_stat.patch mm-damon-paddr-respect-folio-end-for-damos-actions-except-stat.patch mm-damon-vaddr-respect-folio-end-for-damos_stat.patch mm-damon-vaddr-respect-folio-end-for-damos_migrate_hotcold.patch mm-damon-core-handle-extreme-memory-state-in-damon_get_node_mem_bp.patch mm-damon-core-handle-extreme-memory-state-in-get_node_memcg_used_bp.patch mm-damon-core-handle-extreme-memory-state-in-get_in_active_mem_bp.patch mm-damon-core-introduce-damon_filter_type_pgidle_unset.patch mm-damon-paddr-support-pgidle_unset-probe-filter-type.patch mm-damon-sysfs-support-pgidle_unset-probe-filter-type.patch docs-mm-damon-design-document-pgidle_unset-probe-filter-type.patch mm-damon-core-introduce-damon_prep-struct.patch mm-damon-core-commit-preps.patch mm-damon-core-introduce-damon_operations-prep_probes.patch mm-damon-paddr-support-damon_prep.patch mm-damon-sysfs-implement-preps-directory.patch mm-damon-sysfs-implement-preps-nr_preps-file.patch mm-damon-sysfs-create-directories-for-nr_preps-writes.patch mm-damon-sysfs-implement-prep_action-file.patch mm-damon-sysfs-pass-preps-to-damon-core.patch selftests-damon-sysfssh-test-probe-prep-sysfs-files.patch docs-mm-damon-design-document-probe-preps.patch docs-admin-guide-mm-damon-usage-document-probe-preps-sysfs-files.patch docs-abi-damon-document-probe-prep-sysfs-files.patch