[merged mm-stable] samples-damon-prcl-use-damon_initialized.patch removed from -mm tree

[merged mm-stable] samples-damon-prcl-use-damon_initialized.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: samples/damon/prcl: use damon_initialized()
has been removed from the -mm tree.  Its filename was
     samples-damon-prcl-use-damon_initialized.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: SeongJae Park <sj@kernel.org>
Subject: samples/damon/prcl: use damon_initialized()
Date: Mon, 15 Sep 2025 20:35:10 -0700

damon_sample_prcl is assuming DAMON is ready to use in module_init time,
and uses its own hack to see if it is the time.  Use damon_initialized(),
which is a way for seeing if DAMON is ready to be used that is more
reliable and better to maintain instead of the hack.

Link: https://lkml.kernel.org/r/20250916033511.116366-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 samples/damon/prcl.c |   11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

--- a/samples/damon/prcl.c~samples-damon-prcl-use-damon_initialized
+++ a/samples/damon/prcl.c
@@ -122,8 +122,6 @@ static void damon_sample_prcl_stop(void)
 	}
 }
 
-static bool init_called;
-
 static int damon_sample_prcl_enable_store(
 		const char *val, const struct kernel_param *kp)
 {
@@ -137,7 +135,7 @@ static int damon_sample_prcl_enable_stor
 	if (enabled == is_enabled)
 		return 0;
 
-	if (!init_called)
+	if (!damon_initialized())
 		return 0;
 
 	if (enabled) {
@@ -154,7 +152,12 @@ static int __init damon_sample_prcl_init
 {
 	int err = 0;
 
-	init_called = true;
+	if (!damon_initialized()) {
+		if (enabled)
+			enabled = false;
+		return -ENOMEM;
+	}
+
 	if (enabled) {
 		err = damon_sample_prcl_start();
 		if (err)
_

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

mm-damon-sysfs-set-damon_ctx-min_sz_region-only-for-paddr-use-case.patch