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authorEdward Goggin <egoggin@vmware.com>2009-04-09 13:02:22 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-05-14 17:17:46 -0400
commitc53a284f8be23735dc6b53929640a987055f2933 (patch)
tree06551e692dada9abdb36b1744bcd4640642ac29d /drivers/scsi/scsi_scan.c
parent5df6d737dd4b0fe9eccf943abb3677cfea05a6c4 (diff)
[SCSI] initialize max_target_blocked in scsi_alloc_target
This patch initializes the max_target_blocked field of a scsi target structure so that a queuecommand return value of SCSI_MLQUEUE_TARGET_BUSY will actually result in having the scsi_queue_insert blocking the device queue before requeuing the command and running the queue. Otherwise, can and does cause livelock on single CPU configurations if/when open-iSCSI software initiator's command PDU window fills. Signed-off-by: Ed Goggin <egoggin@vmware.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
-rw-r--r--drivers/scsi/scsi_scan.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 6f51ca485f35..e2b50d8f57a8 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -425,6 +425,7 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
425 INIT_LIST_HEAD(&starget->devices); 425 INIT_LIST_HEAD(&starget->devices);
426 starget->state = STARGET_CREATED; 426 starget->state = STARGET_CREATED;
427 starget->scsi_level = SCSI_2; 427 starget->scsi_level = SCSI_2;
428 starget->max_target_blocked = SCSI_DEFAULT_TARGET_BLOCKED;
428 retry: 429 retry:
429 spin_lock_irqsave(shost->host_lock, flags); 430 spin_lock_irqsave(shost->host_lock, flags);
430 431