[merged mm-hotfixes-stable] samples-damon-prcl-avoid-starting-damon-before-initialization.patch removed from -mm tree

[merged mm-hotfixes-stable] samples-damon-prcl-avoid-starting-damon-before-initialization.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: samples/damon/prcl: avoid starting DAMON before initialization
has been removed from the -mm tree.  Its filename was
     samples-damon-prcl-avoid-starting-damon-before-initialization.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: samples/damon/prcl: avoid starting DAMON before initialization
Date: Mon, 8 Sep 2025 19:22:37 -0700

Commit 2780505ec2b4 ("samples/damon/prcl: fix boot time enable crash") is
somehow incompletely applying the origin patch [1].  It is missing the
part that avoids starting DAMON before module initialization.  Probably a
mistake during a merge has happened.  Fix it by applying the missed part
again.

Link: https://lkml.kernel.org/r/20250909022238.2989-3-sj@kernel.org
Link: https://lore.kernel.org/20250706193207.39810-3-sj@kernel.org [1]
Fixes: 2780505ec2b4 ("samples/damon/prcl: fix boot time enable crash")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 samples/damon/prcl.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/samples/damon/prcl.c~samples-damon-prcl-avoid-starting-damon-before-initialization
+++ a/samples/damon/prcl.c
@@ -137,6 +137,9 @@ static int damon_sample_prcl_enable_stor
 	if (enabled == is_enabled)
 		return 0;
 
+	if (!init_called)
+		return 0;
+
 	if (enabled) {
 		err = damon_sample_prcl_start();
 		if (err)
_

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

mm-zswap-store-page_size-compression-failed-page-as-is.patch
mm-zswap-store-page_size-compression-failed-page-as-is-fix.patch
mm-zswap-store-page_size-compression-failed-page-as-is-v5.patch
mm-zswap-store-page_size-compression-failed-page-as-is-fix-2.patch
mm-damon-core-add-damon_ctx-addr_unit.patch
mm-damon-paddr-support-addr_unit-for-access-monitoring.patch
mm-damon-paddr-support-addr_unit-for-damos_pageout.patch
mm-damon-paddr-support-addr_unit-for-damos_lru_prio.patch
mm-damon-paddr-support-addr_unit-for-migrate_hotcold.patch
mm-damon-paddr-support-addr_unit-for-damos_stat.patch
mm-damon-sysfs-implement-addr_unit-file-under-context-dir.patch
docs-mm-damon-design-document-address-unit-parameter.patch
docs-admin-guide-mm-damon-usage-document-addr_unit-file.patch
docs-abi-damon-document-addr_unit-file.patch