@@ -362,7 +362,7 @@ MODULE_PARM_DESC(ring_avail_percent_lowater,
/*
* Timeout in seconds for all devices managed by this driver.
*/
-static int storvsc_timeout = 180;
+static const int storvsc_timeout = 180;
#if IS_ENABLED(CONFIG_SCSI_FC_ATTRS)
static struct scsi_transport_template *fc_transport_template;
@@ -768,7 +768,7 @@ static void handle_multichannel_storage(struct hv_device *device, int max_chns)
return;
}
- t = wait_for_completion_timeout(&request->wait_event, 10*HZ);
+ t = wait_for_completion_timeout(&request->wait_event, storvsc_timeout * HZ);
if (t == 0) {
dev_err(dev, "Failed to create sub-channel: timed out\n");
return;
@@ -833,7 +833,7 @@ static int storvsc_execute_vstor_op(struct hv_device *device,
if (ret != 0)
return ret;
- t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
+ t = wait_for_completion_timeout(&request->wait_event, storvsc_timeout * HZ);
if (t == 0)
return -ETIMEDOUT;
@@ -1350,6 +1350,8 @@ static int storvsc_connect_to_vsp(struct hv_device *device, u32 ring_size,
return ret;
ret = storvsc_channel_init(device, is_fc);
+ if (ret)
+ vmbus_close(device->channel);
return ret;
}
@@ -1668,7 +1670,7 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
if (ret != 0)
return FAILED;
- t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
+ t = wait_for_completion_timeout(&request->wait_event, storvsc_timeout * HZ);
if (t == 0)
return TIMEOUT_ERROR;
Currently storvsc_timeout is only used in storvsc_sdev_configure(), and 5s and 10s are used elsewhere. It turns out that rarely the 5s is not enough on Azure, so let's use storvsc_timeout everywhere. In case a timeout happens and storvsc_channel_init() returns an error, close the VMBus channel so that any host-to-guest messages in the channel's ringbuffer, which might come late, can be safely ignored. Add a "const" to storvsc_timeout. Cc: stable@kernel.org Signed-off-by: Dexuan Cui <decui@microsoft.com> --- drivers/scsi/storvsc_drv.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)