Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

[~andy/linux] / drivers / md / raid5.c

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 63bfb07578294060d3d95baa5c097987033d7345..2d6f1a51359cc490dcfd4f9b6bc5b1add12cf9a0 100644 (file)
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3159,7 +3159,8 @@ static void raid5_activate_delayed(raid5_conf_t *conf)
                                atomic_inc(&conf->preread_active_stripes);
                        list_add_tail(&sh->lru, &conf->handle_list);
                }
-       }
+       } else
+               blk_plug_device(conf->mddev->queue);
 }
 
 static void activate_bit_delay(raid5_conf_t *conf)
@@ -3549,7 +3550,8 @@ static int make_request(struct request_queue *q, struct bio * bi)
                                goto retry;
                        }
                        finish_wait(&conf->wait_for_overlap, &w);
-                       handle_stripe(sh, NULL);
+                       set_bit(STRIPE_HANDLE, &sh->state);
+                       clear_bit(STRIPE_DELAYED, &sh->state);
                        release_stripe(sh);
                } else {
                        /* cannot get stripe for read-ahead, just give-up */
@@ -3892,7 +3894,7 @@ static int  retry_aligned_read(raid5_conf_t *conf, struct bio *raid_bio)
  * During the scan, completed stripes are saved for us by the interrupt
  * handler, so that they will not have to wait for our next wakeup.
  */
-static void raid5d (mddev_t *mddev)
+static void raid5d(mddev_t *mddev)
 {
        struct stripe_head *sh;
        raid5_conf_t *conf = mddev_to_conf(mddev);
@@ -3917,12 +3919,6 @@ static void raid5d (mddev_t *mddev)
                        activate_bit_delay(conf);
                }
 
-               if (list_empty(&conf->handle_list) &&
-                   atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD &&
-                   !blk_queue_plugged(mddev->queue) &&
-                   !list_empty(&conf->delayed_list))
-                       raid5_activate_delayed(conf);
-
                while ((bio = remove_bio_from_retry(conf))) {
                        int ok;
                        spin_unlock_irq(&conf->device_lock);