nvme-fc: clear q_live at beginning of association teardown
The __nvmf_check_ready() routine used to bounce all filesystem io if the controller state isn't LIVE. However, a later patch changed the logic so that it rejection ends up being based on the Q live check. The FC transport has a slightly different sequence from rdma and tcp for shutting down queues/marking them non-live. FC marks its queue non-live after aborting all ios and waiting for their termination, leaving a rather large window for filesystem io to continue to hit the transport. Unfortunately this resulted in filesystem I/O or applications seeing I/O errors. Change the FC transport to mark the queues non-live at the first sign of teardown for the association (when I/O is initially terminated). Fixes: 73a53799 ("nvme-fabrics: allow to queue requests for live queues") Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
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