[Ocfs2-devel] Could the master return DLM_NORMAL when unlock nonexistent locks from other node?

[Shichangkuo]

Hi all,
    When NodeA want to unlock lock-res1, and it send message to NodeB, but in NodeB any lock queues (granted, converting, blocked) could not find this lock for some unknown reason, then NodeB reply DLM_IVLOCKID.
    In this situation, NodeA bug. The detail is described as follows.

        NODEA                                              NODEB
ocfs2_drop_lock
    ocfs2_dlm_unlock
        o2cb_dlm_unlock
            dlmunlock
                dlmunlock_remote        ---->   send message to master
                                                  dlm_unlock_lock_handler
                                                      return DLM_IVLOCKID
    BUG()

I think it's no nessary to let NodeA bug, it just like we removed an nonexistent file.
Could NodeB return DLM_NORMAL?

Thanks
Changkuo
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