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Date: Mon, 3 Jun 2013 16:21:24 -0700 From: "K. Y. Srinivasan" <kys@...rosoft.com> To: gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org, devel@...uxdriverproject.org, ohering@...e.com, jbottomley@...allels.com, hch@...radead.org, linux-scsi@...r.kernel.org Cc: "K. Y. Srinivasan" <kys@...rosoft.com> Subject: [PATCH 1/5] Drivers: scsi: storvsc: Make the scsi timeout a module parameter The standard scsi timeout is not appropriate in some of the environments where Hyper-V is deployed. Set this timeout appropriately for all devices managed by this driver. Further make this a module parameter. Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com> Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com> --- drivers/scsi/storvsc_drv.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 16a3a0c..8d29a95 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -221,6 +221,13 @@ static int storvsc_ringbuffer_size = (20 * PAGE_SIZE); module_param(storvsc_ringbuffer_size, int, S_IRUGO); MODULE_PARM_DESC(storvsc_ringbuffer_size, "Ring buffer size (bytes)"); +/* + * Timeout in seconds for all devices managed by this driver. + */ +static int storvsc_timeout = 180; +module_param(storvsc_timeout, uint, (S_IRUGO | S_IWUSR)); +MODULE_PARM_DESC(storvsc_timeout, "Device timeout (seconds)"); + #define STORVSC_MAX_IO_REQUESTS 128 /* @@ -1204,6 +1211,8 @@ static int storvsc_device_configure(struct scsi_device *sdevice) blk_queue_bounce_limit(sdevice->request_queue, BLK_BOUNCE_ANY); + blk_queue_rq_timeout(sdevice->request_queue, (storvsc_timeout * HZ)); + sdevice->no_write_same = 1; return 0; -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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