Artem Savkov <asav...@redhat.com> wrote: > nfs_idmap_get_key doesn't hold rkey->sem when calling user_key_payload > resulting in a "suspicious RCU usage" lockdep splat. It does, however hold > rcu_read_lock, so it either needs to use unprotected rcu_dereference, or take > rkey->sem instead of rcu_read_lock.
This shouldn't be using rkey->sem. user_key_payload() should do sufficient RCU magic that rcu_read_lock() is sufficient. Can you please include the RCU splat? It's possible user_key_payload() is wrong. David
