scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info

[pandora-kernel.git] / drivers / scsi / scsi_error.c

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index dc6131e..f51234e 100644 (file)
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -41,6 +41,8 @@
 
 #include <trace/events/scsi.h>
 
+static void scsi_eh_done(struct scsi_cmnd *scmd);
+
 #define SENSE_TIMEOUT          (10*HZ)
 
 /*
@@ -240,6 +242,14 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
        if (! scsi_command_normalize_sense(scmd, &sshdr))
                return FAILED;  /* no valid sense data */
 
+       if (scmd->cmnd[0] == TEST_UNIT_READY && scmd->scsi_done != scsi_eh_done)
+               /*
+                * nasty: for mid-layer issued TURs, we need to return the
+                * actual sense data without any recovery attempt.  For eh
+                * issued ones, we need to try to recover and interpret
+                */
+               return SUCCESS;
+
        if (scsi_sense_is_deferred(&sshdr))
                return NEEDS_RETRY;
 
@@ -892,6 +902,15 @@ int scsi_eh_get_sense(struct list_head *work_q,
                    SCSI_SENSE_VALID(scmd))
                        continue;
 
+               if (status_byte(scmd->result) != CHECK_CONDITION)
+                       /*
+                        * don't request sense if there's no check condition
+                        * status because the error we're processing isn't one
+                        * that has a sense code (and some devices get
+                        * confused by sense requests out of the blue)
+                        */
+                       continue;
+
                SCSI_LOG_ERROR_RECOVERY(2, scmd_printk(KERN_INFO, scmd,
                                                  "%s: requesting sense\n",
                                                  current->comm));
@@ -1646,8 +1665,10 @@ static void scsi_restart_operations(struct Scsi_Host *shost)
         * is no point trying to lock the door of an off-line device.
         */
        shost_for_each_device(sdev, shost) {
-               if (scsi_device_online(sdev) && sdev->locked)
+               if (scsi_device_online(sdev) && sdev->was_reset && sdev->locked) {
                        scsi_eh_lock_door(sdev);
+                       sdev->was_reset = 0;
+               }
        }
 
        /*
@@ -1673,6 +1694,20 @@ static void scsi_restart_operations(struct Scsi_Host *shost)
         * requests are started.
         */
        scsi_run_host_queues(shost);
+
+       /*
+        * if eh is active and host_eh_scheduled is pending we need to re-run
+        * recovery.  we do this check after scsi_run_host_queues() to allow
+        * everything pent up since the last eh run a chance to make forward
+        * progress before we sync again.  Either we'll immediately re-run
+        * recovery or scsi_device_unbusy() will wake us again when these
+        * pending commands complete.
+        */
+       spin_lock_irqsave(shost->host_lock, flags);
+       if (shost->host_eh_scheduled)
+               if (scsi_host_set_state(shost, SHOST_RECOVERY))
+                       WARN_ON(scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY));
+       spin_unlock_irqrestore(shost->host_lock, flags);
 }
 
 /**