From: pengdonglin <pengdonglin@xiaomi.com>
Date: Thu, 11 Dec 2025 12:38:29 +0000 (+0800)
Subject: ext4: remove unnecessary zero-initialization via memset
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26f260ce5828fc7897a70629884916301f5825d0;p=thirdparty%2Flinux.git

ext4: remove unnecessary zero-initialization via memset

The d_path function does not require the caller to pre-zero the
buffer.

Signed-off-by: pengdonglin <pengdonglin@xiaomi.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Baokun Li <libaokun1@huawei.com>
Link: https://patch.msgid.link/20251211123829.2777009-1-dolinux.peng@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 7a8b309321892..484cb73888024 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -858,7 +858,6 @@ static int ext4_sample_last_mounted(struct super_block *sb,
 	 * when trying to sort through large numbers of block
 	 * devices or filesystem images.
 	 */
-	memset(buf, 0, sizeof(buf));
 	path.mnt = mnt;
 	path.dentry = mnt->mnt_root;
 	cp = d_path(&path, buf, sizeof(buf));