[PATCH 4.9 48/51] xfs: remove racy hasattr check from attr ops

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Brian Foster commit 5a93790d4e2df73e30c965ec6e49be82fc3ccfce upstream. xfs_attr_[get|remove]() have unlocked attribute fork checks to optimize away a lock cycle in cases

[PATCH 4.9 48/51] xfs: remove racy hasattr check from attr ops

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Brian Foster commit 5a93790d4e2df73e30c965ec6e49be82fc3ccfce upstream. xfs_attr_[get|remove]() have unlocked attribute fork checks to optimize away a lock cycle in cases where the fork does