This patch attempts to run the queues manually when the host
unblocks. scsi_queue_next_request() verifies all other state
to ensure queuing new transactions is safe prior to proceeding.
This patch is part of versions 6.1.10 and 6.1.11 of the
aic7xxx driver. Its used, along with scsi_block_requests(), to
hold off the mid-layer during the initial bus settle delay without
resorting to a busy loop.
-- Justindiff -u -r -N linux-2.4.3.virgin/drivers/scsi/scsi_lib.c linux-2.4.3/drivers/scsi/scsi_lib.c --- linux-2.4.3.virgin/drivers/scsi/scsi_lib.c Fri Mar 2 19:38:39 2001 +++ linux-2.4.3/drivers/scsi/scsi_lib.c Thu Apr 5 14:28:17 2001 @@ -1108,9 +1108,13 @@ */ void scsi_unblock_requests(struct Scsi_Host * SHpnt) { + Scsi_Device *SDloop; + SHpnt->host_self_blocked = FALSE; + /* Now that we are unblocked, try to start the queues. */ + for (SDloop = SHpnt->host_queue; SDloop; SDloop = SDloop->next) + scsi_queue_next_request(&SDloop->request_queue, NULL); } - /* * Function: scsi_report_bus_reset() - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/