From 68f1bb8bb89e0bb813c893a42373a26ebdab7f9c Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 11 Dec 2012 12:10:15 -0500 Subject: vfs: allow setxattr to retry once on ESTALE errors 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 e21c119f4f99..c5e90d2d751f 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -370,8 +370,9 @@ SYSCALL_DEFINE5(setxattr, const char __user *, pathname, { struct path path; int 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 = mnt_want_write(path.mnt); @@ -380,6 +381,10 @@ SYSCALL_DEFINE5(setxattr, const char __user *, pathname, mnt_drop_write(path.mnt); } path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } return error; } -- cgit v1.2.3