scsi: iscsi: Stop queueing during ep_disconnect
During ep_disconnect we have been doing iscsi_suspend_tx/queue to block new I/O but every driver except cxgbi and iscsi_tcp can still get I/O from __iscsi_conn_send_pdu() if we haven't called iscsi_conn_failure() before ep_disconnect. This could happen if we were terminating the session, and the logout timed out before it was even sent to libiscsi. Fix the issue by adding a helper which reverses the bind_conn call that allows new I/O to be queued. Drivers implementing ep_disconnect can use this to make sure new I/O is not queued to them when handling the disconnect. Link: https://lore.kernel.org/r/20210525181821.7617-3-michael.christie@oracle.com Reviewed-by:Lee Duncan <lduncan@suse.com> Signed-off-by:
Mike Christie <michael.christie@oracle.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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1486a4f5
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