From a919ae794ad2dc6d04b3eea2f9bc86332c1630cc Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 27 Jun 2025 10:38:18 +0800
Subject: [PATCH] f2fs: fix to check upper boundary for gc_no_zoned_gc_percent

This patch adds missing upper boundary check while setting
gc_no_zoned_gc_percent via sysfs.

Fixes: 9a481a1c16f4 ("f2fs: create gc_no_zoned_gc_percent and gc_boost_zoned_gc_percent")
Cc: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/sysfs.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index d74472d96026..bdef926b3377 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -628,6 +628,13 @@ out:
 		return count;
 	}
 
+	if (!strcmp(a->attr.name, "gc_no_zoned_gc_percent")) {
+		if (t > 100)
+			return -EINVAL;
+		*ui = (unsigned int)t;
+		return count;
+	}
+
 	if (!strcmp(a->attr.name, "gc_boost_zoned_gc_percent")) {
 		if (t > 100)
 			return -EINVAL;
-- 
2.25.1