From: Christian Brauner <brauner@xxxxxxxxxx>
commit 27a2d0c upstream.
Use the newly added helper for this.
Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 6.6.x
Signed-off-by: Miao Wang <shankerwangmiao@xxxxxxxxx>
Tested-by: Xi Ruoyao <xry111@xxxxxxxxxxx>
---
fs/stat.c | 12 ++----------
1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/fs/stat.c b/fs/stat.c
index 5375be5f97cc..045b2a02de50 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -284,16 +284,8 @@ int vfs_fstatat(int dfd, const char __user *filename,
* If AT_EMPTY_PATH is set, we expect the common case to be that
* empty path, and avoid doing all the extra pathname work.
*/
- if (dfd >= 0 && flags == AT_EMPTY_PATH) {
- char c;
-
- ret = get_user(c, filename);
- if (unlikely(ret))
- return ret;
-
- if (likely(!c))
- return vfs_fstat(dfd, stat);
- }
+ if (flags == AT_EMPTY_PATH && vfs_empty_path(dfd, filename))
+ return vfs_fstat(dfd, stat);
name = getname_flags(filename, getname_statx_lookup_flags(statx_flags), NULL);
ret = vfs_statx(dfd, name, statx_flags, stat, STATX_BASIC_STATS);
--
2.43.0
