linux-kernel - [PATCH 1/8] mm/damon/sysfs-schemes: let damon_sysfs_scheme_set_filters() be used for different named directories

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Message-Id: <20250220194646.37726-2-sj@kernel.org>
Date: Thu, 20 Feb 2025 11:46:39 -0800
From: SeongJae Park <sj@...nel.org>
To: 
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	damon@...ts.linux.dev,
	kernel-team@...a.com,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: [PATCH 1/8] mm/damon/sysfs-schemes: let damon_sysfs_scheme_set_filters() be used for different named directories

damon_sysfs_scheme_set_filters() is using a hard-coded directory name,
"filters".  Refactor for general named directories of same files
hierarchy, to use from upcoming changes.

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 mm/damon/sysfs-schemes.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index 66a1c46cee84..541ca5887b24 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -1604,7 +1604,9 @@ static int damon_sysfs_scheme_set_watermarks(struct damon_sysfs_scheme *scheme)
 	return err;
 }
 
-static int damon_sysfs_scheme_set_filters(struct damon_sysfs_scheme *scheme)
+static int damon_sysfs_scheme_set_filters(struct damon_sysfs_scheme *scheme,
+		const char *name,
+		struct damon_sysfs_scheme_filters **filters_ptr)
 {
 	struct damon_sysfs_scheme_filters *filters =
 		damon_sysfs_scheme_filters_alloc();
@@ -1614,11 +1616,11 @@ static int damon_sysfs_scheme_set_filters(struct damon_sysfs_scheme *scheme)
 		return -ENOMEM;
 	err = kobject_init_and_add(&filters->kobj,
 			&damon_sysfs_scheme_filters_ktype, &scheme->kobj,
-			"filters");
+			name);
 	if (err)
 		kobject_put(&filters->kobj);
 	else
-		scheme->filters = filters;
+		*filters_ptr = filters;
 	return err;
 }
 
@@ -1670,7 +1672,8 @@ static int damon_sysfs_scheme_add_dirs(struct damon_sysfs_scheme *scheme)
 	err = damon_sysfs_scheme_set_watermarks(scheme);
 	if (err)
 		goto put_quotas_access_pattern_out;
-	err = damon_sysfs_scheme_set_filters(scheme);
+	err = damon_sysfs_scheme_set_filters(scheme, "filters",
+			&scheme->filters);
 	if (err)
 		goto put_watermarks_quotas_access_pattern_out;
 	err = damon_sysfs_scheme_set_stats(scheme);
-- 
2.39.5