diff options
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 94ed262bdf0..ad6a1370761 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -124,33 +124,22 @@ int scsi_eh_scmd_add(struct scsi_cmnd *scmd, int eh_flag) enum blk_eh_timer_return scsi_times_out(struct request *req) { struct scsi_cmnd *scmd = req->special; - enum blk_eh_timer_return (*eh_timed_out)(struct scsi_cmnd *); enum blk_eh_timer_return rtn = BLK_EH_NOT_HANDLED; scsi_log_completion(scmd, TIMEOUT_ERROR); if (scmd->device->host->transportt->eh_timed_out) - eh_timed_out = scmd->device->host->transportt->eh_timed_out; + rtn = scmd->device->host->transportt->eh_timed_out(scmd); else if (scmd->device->host->hostt->eh_timed_out) - eh_timed_out = scmd->device->host->hostt->eh_timed_out; - else - eh_timed_out = NULL; + rtn = scmd->device->host->hostt->eh_timed_out(scmd); - if (eh_timed_out) - rtn = eh_timed_out(scmd); - switch (rtn) { - case BLK_EH_NOT_HANDLED: - break; - default: - return rtn; - } - - if (unlikely(!scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD))) { + if (unlikely(rtn == BLK_EH_NOT_HANDLED && + !scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD))) { scmd->result |= DID_TIME_OUT << 16; - return BLK_EH_HANDLED; + rtn = BLK_EH_HANDLED; } - return BLK_EH_NOT_HANDLED; + return rtn; } /** @@ -932,8 +921,7 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd) int i, rtn = NEEDS_RETRY; for (i = 0; rtn == NEEDS_RETRY && i < 2; i++) - rtn = scsi_send_eh_cmnd(scmd, stu_command, 6, - scmd->device->timeout, 0); + rtn = scsi_send_eh_cmnd(scmd, stu_command, 6, scmd->device->request_queue->rq_timeout, 0); if (rtn == SUCCESS) return 0; @@ -1340,9 +1328,10 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) * LLD/transport was disrupted during processing of the IO. * The transport class is now blocked/blocking, * and the transport will decide what to do with the IO - * based on its timers and recovery capablilities. + * based on its timers and recovery capablilities if + * there are enough retries. */ - return ADD_TO_MLQUEUE; + goto maybe_retry; case DID_TRANSPORT_FAILFAST: /* * The transport decided to failfast the IO (most likely @@ -1405,8 +1394,9 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) return ADD_TO_MLQUEUE; case GOOD: case COMMAND_TERMINATED: - case TASK_ABORTED: return SUCCESS; + case TASK_ABORTED: + goto maybe_retry; case CHECK_CONDITION: rtn = scsi_check_sense(scmd); if (rtn == NEEDS_RETRY) @@ -1648,7 +1638,7 @@ int scsi_error_handler(void *data) * We use TASK_INTERRUPTIBLE so that the thread is not * counted against the load average as a running process. * We never actually get interrupted because kthread_run - * disables singal delivery for the created thread. + * disables signal delivery for the created thread. */ set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { |