This makes it possible to use utimensat on an O_PATH file (including
symlinks).
It supersedes the nonstandard utimensat(fd, NULL, ...) form.
Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
---
fs/utimes.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/utimes.c b/fs/utimes.c
index 1d17ce98cb80..b7b927502d6e 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -95,13 +95,13 @@ long do_utimes(int dfd, const char __user *filename, struct timespec64 *times,
goto out;
}
- if (flags & ~AT_SYMLINK_NOFOLLOW)
+ if (flags & ~(AT_SYMLINK_NOFOLLOW | AT_EMPTY_PATH))
goto out;
if (filename == NULL && dfd != AT_FDCWD) {
struct fd f;
- if (flags & AT_SYMLINK_NOFOLLOW)
+ if (flags)
goto out;
f = fdget(dfd);
@@ -117,6 +117,8 @@ long do_utimes(int dfd, const char __user *filename, struct timespec64 *times,
if (!(flags & AT_SYMLINK_NOFOLLOW))
lookup_flags |= LOOKUP_FOLLOW;
+ if (flags & AT_EMPTY_PATH)
+ lookup_flags |= LOOKUP_EMPTY;
retry:
error = user_path_at(dfd, filename, lookup_flags, &path);
if (error)
--
2.21.1
