diff options
Diffstat (limited to 'drivers/scsi/device_handler/scsi_dh_rdac.c')
| -rw-r--r-- | drivers/scsi/device_handler/scsi_dh_rdac.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index ff07559c5fcd..3e16a33927cf 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -24,6 +24,7 @@ #include <scsi/scsi_dh.h> #define RDAC_NAME "rdac" +#define RDAC_RETRY_COUNT 5 /* * LSI mode page stuff @@ -478,21 +479,27 @@ static int send_mode_select(struct scsi_device *sdev, struct rdac_dh_data *h) { struct request *rq; struct request_queue *q = sdev->request_queue; - int err = SCSI_DH_RES_TEMP_UNAVAIL; + int err, retry_cnt = RDAC_RETRY_COUNT; +retry: + err = SCSI_DH_RES_TEMP_UNAVAIL; rq = rdac_failover_get(sdev, h); if (!rq) goto done; - sdev_printk(KERN_INFO, sdev, "queueing MODE_SELECT command.\n"); + sdev_printk(KERN_INFO, sdev, "%s MODE_SELECT command.\n", + (retry_cnt == RDAC_RETRY_COUNT) ? "queueing" : "retrying"); err = blk_execute_rq(q, NULL, rq, 1); - if (err != SCSI_DH_OK) + blk_put_request(rq); + if (err != SCSI_DH_OK) { err = mode_select_handle_sense(sdev, h->sense); + if (err == SCSI_DH_RETRY && retry_cnt--) + goto retry; + } if (err == SCSI_DH_OK) h->state = RDAC_STATE_ACTIVE; - blk_put_request(rq); done: return err; } |