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storvsc: Use the specified target ID in device lookup

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The current code assumes that there is only one target in device lookup.
Fix this bug. This will alow us to correctly handle hot reomoval of
LUNs.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Alex Ng <alexng@microsoft.com>
Tested-by: Vivek Yadav <vyadav@microsoft.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
K. Y. Srinivasan 2016-01-27 18:22:45 -08:00 committed by Martin K. Petersen
parent d791a8c60e
commit 9844122170
1 changed files with 5 additions and 5 deletions
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10
drivers/scsi/storvsc_drv.c
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@ -478,19 +478,18 @@ struct hv_host_device {
struct storvsc_scan_work {
struct work_struct work;
struct Scsi_Host *host;
uint lun;
u8 lun;
u8 tgt_id;
};
static void storvsc_device_scan(struct work_struct *work)
{
struct storvsc_scan_work *wrk;
uint lun;
struct scsi_device *sdev;
wrk = container_of(work, struct storvsc_scan_work, work);
lun = wrk->lun;
sdev = scsi_device_lookup(wrk->host, 0, 0, lun);
sdev = scsi_device_lookup(wrk->host, 0, wrk->tgt_id, wrk->lun);
if (!sdev)
goto done;
scsi_rescan_device(&sdev->sdev_gendev);
@ -541,7 +540,7 @@ static void storvsc_remove_lun(struct work_struct *work)
if (!scsi_host_get(wrk->host))
goto done;
sdev = scsi_device_lookup(wrk->host, 0, 0, wrk->lun);
sdev = scsi_device_lookup(wrk->host, 0, wrk->tgt_id, wrk->lun);
if (sdev) {
scsi_remove_device(sdev);
@ -941,6 +940,7 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
wrk->host = host;
wrk->lun = vm_srb->lun;
wrk->tgt_id = vm_srb->target_id;
INIT_WORK(&wrk->work, process_err_fn);
schedule_work(&wrk->work);
}