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authorJeff Layton <jlayton@redhat.com>2012-12-11 12:10:14 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:08 -0500
commita69201d6f08240f20a0d33a1b7273d1e7748791c (patch)
tree609495e85765dac924c69a229dde05ed1cc0baff /fs/utimes.c
parent96948fc6069b68380abac2944b8b02b43a2e2057 (diff)
downloadlwn-a69201d6f08240f20a0d33a1b7273d1e7748791c.tar.gz
lwn-a69201d6f08240f20a0d33a1b7273d1e7748791c.zip
vfs: allow utimensat() calls to retry once on an ESTALE error
Clearly, we can't handle the NULL filename case, but we can deal with the case where there's a real pathname. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/utimes.c')
-rw-r--r--fs/utimes.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/utimes.c b/fs/utimes.c
index bb0696a41735..f4fb7eca10e8 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -158,13 +158,17 @@ long do_utimes(int dfd, const char __user *filename, struct timespec *times,
if (!(flags & AT_SYMLINK_NOFOLLOW))
lookup_flags |= LOOKUP_FOLLOW;
-
+retry:
error = user_path_at(dfd, filename, lookup_flags, &path);
if (error)
goto out;
error = utimes_common(&path, times);
path_put(&path);
+ if (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
}
out: