linux-kernel - [PATCH] f2fs: fix to check upper boundary for value of gc_boost_zoned_gc

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Message-ID: <20250625001408.1961-1-yohan.joung@sk.com>
Date: Wed, 25 Jun 2025 09:14:07 +0900
From: "yohan.joung" <yohan.joung@...com>
To: jaegeuk@...nel.org,
	chao@...nel.org
Cc: linux-kernel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	pilhyun.kim@...com,
	"yohan.joung" <yohan.joung@...com>
Subject: [PATCH] f2fs: fix to check upper boundary for value of gc_boost_zoned_gc_percent

to check the upper boundary when setting gc_boost_zoned_gc_percent

Signed-off-by: yohan.joung <yohan.joung@...com>
---
 fs/f2fs/sysfs.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 51be7ffb38c5..2b5c35ce7b8c 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -628,6 +628,13 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
 		return count;
 	}
 
+	if (!strcmp(a->attr.name, "gc_boost_zoned_gc_percent")) {
+		if (t > 100)
+			return -EINVAL;
+		*ui = (unsigned int)t;
+		return count;
+	}
+
 #ifdef CONFIG_F2FS_IOSTAT
 	if (!strcmp(a->attr.name, "iostat_enable")) {
 		sbi->iostat_enable = !!t;
-- 
2.33.0