From: Dan Williams Date: Fri, 22 Jun 2012 06:25:42 +0000 (-0700) Subject: [SCSI] cleanup setting task state in scsi_error_handler() X-Git-Tag: upstream/snapshot3+hdmi~6975^2~41 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b9d5c6b7ef570bea0d22746944d7b58fa7f17b13;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git [SCSI] cleanup setting task state in scsi_error_handler() A quick reading of scsi_error_handler() one could come away with the impression that it does its wakeup event check while the task state is TASK_RUNNING. In fact it sets TASK_INTERRUPTIBLE at the bottom of the loop, but that is ~50 lines down. Just set TASK_INTERRUPTIBLE at the top of loop and be done. Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 804f632..4a6381c 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1818,15 +1818,14 @@ int scsi_error_handler(void *data) * We never actually get interrupted because kthread_run * disables signal delivery for the created thread. */ - set_current_state(TASK_INTERRUPTIBLE); while (!kthread_should_stop()) { + set_current_state(TASK_INTERRUPTIBLE); 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", shost->host_no)); schedule(); - set_current_state(TASK_INTERRUPTIBLE); continue; } @@ -1863,7 +1862,6 @@ int scsi_error_handler(void *data) scsi_restart_operations(shost); if (!shost->eh_noresume) scsi_autopm_put_host(shost); - set_current_state(TASK_INTERRUPTIBLE); } __set_current_state(TASK_RUNNING);