From 60e66b48ca20819d97ec4851007accc0b013985a Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 11 Dec 2012 12:10:16 -0500 Subject: vfs: make getxattr retry once on an ESTALE error Signed-off-by: Jeff Layton Signed-off-by: Al Viro --- fs/xattr.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/xattr.c b/fs/xattr.c index 74d36e063c8..24833de649f 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -486,12 +486,17 @@ SYSCALL_DEFINE4(getxattr, const char __user *, pathname, { struct path path; ssize_t error; - - error = user_path(pathname, &path); + unsigned int lookup_flags = LOOKUP_FOLLOW; +retry: + error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path); if (error) return error; error = getxattr(path.dentry, name, value, size); path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } return error; } -- cgit v1.2.3-18-g5258