diff options
Diffstat (limited to 'drivers/scsi/scsi_error.c')
-rw-r--r-- | drivers/scsi/scsi_error.c | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 36870b41c888..2371edbc3af4 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -50,8 +50,6 @@ #include <asm/unaligned.h> -static void scsi_eh_done(struct scsi_cmnd *scmd); - /* * These should *probably* be handled by the host itself. * Since it is allowed to sleep, it probably should. @@ -135,6 +133,23 @@ static bool scsi_eh_should_retry_cmd(struct scsi_cmnd *cmd) return true; } +static void scsi_eh_complete_abort(struct scsi_cmnd *scmd, struct Scsi_Host *shost) +{ + unsigned long flags; + + spin_lock_irqsave(shost->host_lock, flags); + list_del_init(&scmd->eh_entry); + /* + * If the abort succeeds, and there is no further + * EH action, clear the ->last_reset time. + */ + if (list_empty(&shost->eh_abort_list) && + list_empty(&shost->eh_cmd_q)) + if (shost->eh_deadline != -1) + shost->last_reset = 0; + spin_unlock_irqrestore(shost->host_lock, flags); +} + /** * scmd_eh_abort_handler - Handle command aborts * @work: command to be aborted. @@ -152,6 +167,7 @@ scmd_eh_abort_handler(struct work_struct *work) container_of(work, struct scsi_cmnd, abort_work.work); struct scsi_device *sdev = scmd->device; enum scsi_disposition rtn; + unsigned long flags; if (scsi_host_eh_past_deadline(sdev->host)) { SCSI_LOG_ERROR_RECOVERY(3, @@ -175,12 +191,14 @@ scmd_eh_abort_handler(struct work_struct *work) SCSI_LOG_ERROR_RECOVERY(3, scmd_printk(KERN_WARNING, scmd, "retry aborted command\n")); + scsi_eh_complete_abort(scmd, sdev->host); scsi_queue_insert(scmd, SCSI_MLQUEUE_EH_RETRY); return; } else { SCSI_LOG_ERROR_RECOVERY(3, scmd_printk(KERN_WARNING, scmd, "finish aborted command\n")); + scsi_eh_complete_abort(scmd, sdev->host); scsi_finish_command(scmd); return; } @@ -193,6 +211,9 @@ scmd_eh_abort_handler(struct work_struct *work) } } + spin_lock_irqsave(sdev->host->host_lock, flags); + list_del_init(&scmd->eh_entry); + spin_unlock_irqrestore(sdev->host->host_lock, flags); scsi_eh_scmd_add(scmd); } @@ -223,6 +244,8 @@ scsi_abort_command(struct scsi_cmnd *scmd) spin_lock_irqsave(shost->host_lock, flags); if (shost->eh_deadline != -1 && !shost->last_reset) shost->last_reset = jiffies; + BUG_ON(!list_empty(&scmd->eh_entry)); + list_add_tail(&scmd->eh_entry, &shost->eh_abort_list); spin_unlock_irqrestore(shost->host_lock, flags); scmd->eh_eflags |= SCSI_EH_ABORT_SCHEDULED; @@ -520,7 +543,8 @@ enum scsi_disposition scsi_check_sense(struct scsi_cmnd *scmd) /* handler does not care. Drop down to default handling */ } - if (scmd->cmnd[0] == TEST_UNIT_READY && scmd->scsi_done != scsi_eh_done) + if (scmd->cmnd[0] == TEST_UNIT_READY && + scmd->submitter != SUBMITTED_BY_SCSI_ERROR_HANDLER) /* * nasty: for mid-layer issued TURs, we need to return the * actual sense data without any recovery attempt. For eh @@ -782,7 +806,7 @@ static enum scsi_disposition scsi_eh_completed_normally(struct scsi_cmnd *scmd) * scsi_eh_done - Completion function for error handling. * @scmd: Cmd that is done. */ -static void scsi_eh_done(struct scsi_cmnd *scmd) +void scsi_eh_done(struct scsi_cmnd *scmd) { struct completion *eh_action; @@ -1082,7 +1106,7 @@ retry: shost->eh_action = &done; scsi_log_send(scmd); - scmd->scsi_done = scsi_eh_done; + scmd->submitter = SUBMITTED_BY_SCSI_ERROR_HANDLER; /* * Lock sdev->state_mutex to avoid that scsi_device_quiesce() can @@ -1109,6 +1133,7 @@ retry: if (rtn) { if (timeleft > stall_for) { scsi_eh_restore_cmnd(scmd, &ses); + timeleft -= stall_for; msleep(jiffies_to_msecs(stall_for)); goto retry; @@ -2338,11 +2363,6 @@ void scsi_report_device_reset(struct Scsi_Host *shost, int channel, int target) } EXPORT_SYMBOL(scsi_report_device_reset); -static void -scsi_reset_provider_done_command(struct scsi_cmnd *scmd) -{ -} - /** * scsi_ioctl_reset: explicitly reset a host/bus/target/device * @dev: scsi_device to operate on @@ -2379,7 +2399,7 @@ scsi_ioctl_reset(struct scsi_device *dev, int __user *arg) scsi_init_command(dev, scmd); scmd->cmnd = scsi_req(rq)->cmd; - scmd->scsi_done = scsi_reset_provider_done_command; + scmd->submitter = SUBMITTED_BY_SCSI_RESET_IOCTL; memset(&scmd->sdb, 0, sizeof(scmd->sdb)); scmd->cmd_len = 0; |