From 10a90cf36efe0fca5c7719fd9b0299abd6be51aa Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 11 Dec 2012 12:10:16 -0500 Subject: [PATCH] vfs: make listxattr retry once on ESTALE error Signed-off-by: Jeff Layton Signed-off-by: Al Viro --- fs/xattr.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/xattr.c b/fs/xattr.c index c127d57bf655..1dc1eac17319 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -576,12 +576,17 @@ SYSCALL_DEFINE3(listxattr, const char __user *, pathname, char __user *, list, { 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 = listxattr(path.dentry, list, size); path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } return error; }