If a VFC port gets unmapped in the VIOS, it may not respond with a CRQ init complete following H_REG_CRQ. If this occurs, we can end up having called scsi_block_requests and not a resulting unblock until the init complete happens, which may never occur, and we end up hanging I/O requests. This patch ensures the host action stay set to IBMVFC_HOST_ACTION_TGT_DEL so we move all rports into devloss state and unblock unless we receive an init complete. Signed-off-by: Brian King <brking@xxxxxxxxxxxxxxxxxx> --- drivers/scsi/ibmvscsi/ibmvfc.c | 1 - 1 file changed, 1 deletion(-) diff -puN drivers/scsi/ibmvscsi/ibmvfc.c~ibmvfc_unmap_hang_fix drivers/scsi/ibmvscsi/ibmvfc.c --- linux-2.6.git/drivers/scsi/ibmvscsi/ibmvfc.c~ibmvfc_unmap_hang_fix 2016-09-09 15:46:36.452011778 -0500 +++ linux-2.6.git-bjking1/drivers/scsi/ibmvscsi/ibmvfc.c 2016-09-09 15:47:07.026632886 -0500 @@ -717,7 +717,6 @@ static int ibmvfc_reset_crq(struct ibmvf spin_lock_irqsave(vhost->host->host_lock, flags); vhost->state = IBMVFC_NO_CRQ; vhost->logged_in = 0; - ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_NONE); /* Clean out the queue */ memset(crq->msgs, 0, PAGE_SIZE); _ -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
