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authorJeff Layton <jlayton@redhat.com>2012-12-11 12:10:13 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:07 -0500
commit99a5df37a03c99e57d0da4f847a515b658963fbb (patch)
tree30705a9b8d386d88045f4955c551d6bf9ceb86d7 /fs
parent14ff690c0f94cf2e37f7c448f4f09bf0b4006d62 (diff)
downloadlinux-99a5df37a03c99e57d0da4f847a515b658963fbb.tar.gz
vfs: make fchownat retry once on ESTALE errors
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/open.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c
index 99c3ce5f897b..9b33c0cbfacf 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -582,6 +582,7 @@ SYSCALL_DEFINE5(fchownat, int, dfd, const char __user *, filename, uid_t, user,
 	lookup_flags = (flag & AT_SYMLINK_NOFOLLOW) ? 0 : LOOKUP_FOLLOW;
 	if (flag & AT_EMPTY_PATH)
 		lookup_flags |= LOOKUP_EMPTY;
+retry:
 	error = user_path_at(dfd, filename, lookup_flags, &path);
 	if (error)
 		goto out;
@@ -592,6 +593,10 @@ SYSCALL_DEFINE5(fchownat, int, dfd, const char __user *, filename, uid_t, user,
 	mnt_drop_write(path.mnt);
 out_release:
 	path_put(&path);
+	if (retry_estale(error, lookup_flags)) {
+		lookup_flags |= LOOKUP_REVAL;
+		goto retry;
+	}
 out:
 	return error;
 }