+ mm-damon-sysfs-support-lru-activeness-based-damon-filter-setup.patch added to mm-unstable branch

+ mm-damon-sysfs-support-lru-activeness-based-damon-filter-setup.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/damon/sysfs: support LRU-activeness based DAMON filter setup
has been added to the -mm mm-unstable branch.  Its filename is
     mm-damon-sysfs-support-lru-activeness-based-damon-filter-setup.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-sysfs-support-lru-activeness-based-damon-filter-setup.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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 <sj@kernel.org>
Subject: mm/damon/sysfs: support LRU-activeness based DAMON filter setup
Date: Thu, 12 Nov 2026 21:17:09 -0800

Support DAMON sysfs interface based setup of DAMON_FILTER_TYPE_ACTIVE
type DAMON filters.  For that, wire the type with a new user keyword,
"active".  Users can set up the new type of filter using the existing
DAMON filter setup interface with the new keyword.

Link: https://lore.kernel.org/20261113051711.89274-4-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/damon/sysfs.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/mm/damon/sysfs.c~mm-damon-sysfs-support-lru-activeness-based-damon-filter-setup
+++ a/mm/damon/sysfs.c
@@ -1011,6 +1011,10 @@ damon_sysfs_filter_type_names[] = {
 		.type = DAMON_FILTER_TYPE_HUGEPAGE_SIZE,
 		.name = "hugepage_size",
 	},
+	{
+		.type = DAMON_FILTER_TYPE_ACTIVE,
+		.name = "active",
+	},
 };
 
 static ssize_t type_show(struct kobject *kobj,
_

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

mm-damon-core-copy-only-installed-probe-in-damon_split_region_at.patch
mm-damon-core-add-damos_filter_type_age_ms.patch
mm-damon-sysfs-schemes-support-damos_filter_type_age_ms.patch
docs-mm-damon-design-update-for-age_ms-damos-core-filter-type.patch
docs-admin-guide-mm-damon-usage-update-for-age_ms-damos-core-filter.patch
mm-damon-api-define-damon_filter_type_active.patch
mm-damon-ops-common-implement-damon_filter_type_active-operation.patch
mm-damon-sysfs-support-lru-activeness-based-damon-filter-setup.patch
docs-mm-damon-design-update-for-damon_filter_type_active.patch