From: Long Li Date: Tue, 13 Jun 2017 21:34:05 +0000 (-0700) Subject: scsi: storvsc: use default I/O timeout handler for FC devices X-Git-Tag: v4.13-rc1~136^2~88 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3930d7309807ba0bfa460dfa9ed68d5560347dd2;p=karo-tx-linux.git scsi: storvsc: use default I/O timeout handler for FC devices FC disks issue I/O directly to the host storage port driver, this is diffirent to VHD disks where I/O is virtualized and timeout is handled by the host VSP (Virtualization Service Provider). FC disks are usually setup in a multipath system, and they don't want to reset timer on I/O timeout. Timeout is detected by multipath as a good time to failover and recover. Signed-off-by: Long Li Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 8d955db6424f..3cc8d67783a1 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1495,6 +1495,10 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd) */ static enum blk_eh_timer_return storvsc_eh_timed_out(struct scsi_cmnd *scmnd) { +#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS) + if (scmnd->device->host->transportt == fc_transport_template) + return fc_eh_timed_out(scmnd); +#endif return BLK_EH_RESET_TIMER; }