• David Teigland's avatar
    [DLM] fix requestqueue race · d4400156
    David Teigland authored
    Red Hat BZ 211914
    
    There's a race between dlm_recoverd (1) enabling locking and (2) clearing
    out the requestqueue, and dlm_recvd (1) checking if locking is enabled and
    (2) adding a message to the requestqueue.  An order of recoverd(1),
    recvd(1), recvd(2), recoverd(2) will result in a message being left on the
    requestqueue.  The fix is to have dlm_recvd check if dlm_recoverd has
    enabled locking after taking the mutex for the requestqueue and if it has
    processing the message instead of queueing it.
    Signed-off-by: default avatarDavid Teigland <teigland@redhat.com>
    Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
    d4400156
requestqueue.c 5.05 KB