diff options
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 1c75646f9689..6a7a60fc0a4e 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -26,13 +26,13 @@ #include <linux/delay.h> #include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> #include <scsi/scsi_dbg.h> #include <scsi/scsi_device.h> #include <scsi/scsi_eh.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_host.h> #include <scsi/scsi_ioctl.h> -#include <scsi/scsi_request.h> #include "scsi_priv.h" #include "scsi_logging.h" @@ -58,6 +58,28 @@ void scsi_eh_wakeup(struct Scsi_Host *shost) } /** + * scsi_schedule_eh - schedule EH for SCSI host + * @shost: SCSI host to invoke error handling on. + * + * Schedule SCSI EH without scmd. + **/ +void scsi_schedule_eh(struct Scsi_Host *shost) +{ + unsigned long flags; + + spin_lock_irqsave(shost->host_lock, flags); + + if (scsi_host_set_state(shost, SHOST_RECOVERY) == 0 || + scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY) == 0) { + shost->host_eh_scheduled++; + scsi_eh_wakeup(shost); + } + + spin_unlock_irqrestore(shost->host_lock, flags); +} +EXPORT_SYMBOL_GPL(scsi_schedule_eh); + +/** * scsi_eh_scmd_add - add scsi cmd to error handling. * @scmd: scmd to run eh on. * @eh_flag: optional SCSI_EH flag. @@ -452,7 +474,6 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout) (sdev->lun << 5 & 0xe0); shost->eh_action = &done; - scmd->request->rq_status = RQ_SCSI_BUSY; spin_lock_irqsave(shost->host_lock, flags); scsi_log_send(scmd); @@ -461,7 +482,6 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout) timeleft = wait_for_completion_timeout(&done, timeout); - scmd->request->rq_status = RQ_SCSI_DONE; shost->eh_action = NULL; scsi_log_completion(scmd, SUCCESS); @@ -1517,7 +1537,7 @@ int scsi_error_handler(void *data) */ set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { - if (shost->host_failed == 0 || + if ((shost->host_failed == 0 && shost->host_eh_scheduled == 0) || shost->host_failed != shost->host_busy) { SCSI_LOG_ERROR_RECOVERY(1, printk("Error handler scsi_eh_%d sleeping\n", @@ -1657,7 +1677,6 @@ scsi_reset_provider(struct scsi_device *dev, int flag) scmd->request = &req; memset(&scmd->eh_timeout, 0, sizeof(scmd->eh_timeout)); - scmd->request->rq_status = RQ_SCSI_BUSY; memset(&scmd->cmnd, '\0', sizeof(scmd->cmnd)); @@ -1671,8 +1690,6 @@ scsi_reset_provider(struct scsi_device *dev, int flag) scmd->cmd_len = 0; scmd->sc_data_direction = DMA_BIDIRECTIONAL; - scmd->sc_request = NULL; - scmd->sc_magic = SCSI_CMND_MAGIC; init_timer(&scmd->eh_timeout); @@ -1769,14 +1786,6 @@ int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, } EXPORT_SYMBOL(scsi_normalize_sense); -int scsi_request_normalize_sense(struct scsi_request *sreq, - struct scsi_sense_hdr *sshdr) -{ - return scsi_normalize_sense(sreq->sr_sense_buffer, - sizeof(sreq->sr_sense_buffer), sshdr); -} -EXPORT_SYMBOL(scsi_request_normalize_sense); - int scsi_command_normalize_sense(struct scsi_cmnd *cmd, struct scsi_sense_hdr *sshdr) { |