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authorJeff Layton <jlayton@redhat.com>2012-12-11 12:10:17 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-12-20 18:50:10 -0500
commitbd9bbc9842bde1b14046cdbda1153f0d49061135 (patch)
tree7dc71b051248d1789e8d0bef74ada4387dd2b76e /fs/xattr.c
parent10a90cf36efe0fca5c7719fd9b0299abd6be51aa (diff)
downloadvexpress-lsk-bd9bbc9842bde1b14046cdbda1153f0d49061135.tar.gz
vfs: make llistxattr retry once on ESTALE error
Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xattr.c')
-rw-r--r--fs/xattr.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/xattr.c b/fs/xattr.c
index 1dc1eac1731..49d09e15880 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -595,12 +595,17 @@ SYSCALL_DEFINE3(llistxattr, const char __user *, pathname, char __user *, list,
{
struct path path;
ssize_t error;
-
- error = user_lpath(pathname, &path);
+ unsigned int lookup_flags = 0;
+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;
}