4 files changed, 14 insertions, 9 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 835def11419..ab6a61db63c 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -432,6 +432,7 @@ static int crypt_convert(struct crypt_config *cc,
 		case 0:
 			atomic_dec(&ctx->pending);
 			ctx->sector++;
+			cond_resched();
 			continue;
 
 		/* error */
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 7cf512a34cc..2580ac1b9b0 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3897,8 +3897,10 @@ static void autorun_devices(int part)
 
 		md_probe(dev, NULL, NULL);
 		mddev = mddev_find(dev);
-		if (!mddev) {
-			printk(KERN_ERR 
+		if (!mddev || !mddev->gendisk) {
+			if (mddev)
+				mddev_put(mddev);
+			printk(KERN_ERR
 				"md: cannot allocate memory for md drive.\n");
 			break;
 		}
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1de17da34a9..a71277b640a 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2137,6 +2137,8 @@ static int run(mddev_t *mddev)
 		    !test_bit(In_sync, &disk->rdev->flags)) {
 			disk->head_position = 0;
 			mddev->degraded++;
+			if (disk->rdev)
+				conf->fullsync = 1;
 		}
 	}
 
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index c37e256b117..3b27df52456 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2017,12 +2017,7 @@ static int __handle_issuing_new_read_requests5(struct stripe_head *sh,
 			 */
 			s->uptodate++;
 			return 0; /* uptodate + compute == disks */
-		} else if ((s->uptodate < disks - 1) &&
-			test_bit(R5_Insync, &dev->flags)) {
-			/* Note: we hold off compute operations while checks are
-			 * in flight, but we still prefer 'compute' over 'read'
-			 * hence we only read if (uptodate < * disks-1)
-			 */
+		} else if (test_bit(R5_Insync, &dev->flags)) {
 			set_bit(R5_LOCKED, &dev->flags);
 			set_bit(R5_Wantread, &dev->flags);
 			if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending))
@@ -2898,6 +2893,8 @@ static void handle_stripe5(struct stripe_head *sh)
 
 		for (i = conf->raid_disks; i--; ) {
 			set_bit(R5_Wantwrite, &sh->dev[i].flags);
+			set_bit(R5_LOCKED, &dev->flags);
+			s.locked++;
 			if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending))
 				sh->ops.count++;
 		}
@@ -2911,6 +2908,7 @@ static void handle_stripe5(struct stripe_head *sh)
 			conf->raid_disks);
 		s.locked += handle_write_operations5(sh, 1, 1);
 	} else if (s.expanded &&
+		   s.locked == 0 &&
 		!test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending)) {
 		clear_bit(STRIPE_EXPAND_READY, &sh->state);
 		atomic_dec(&conf->reshape_stripes);
@@ -4305,7 +4303,9 @@ static int run(mddev_t *mddev)
 				" disk %d\n", bdevname(rdev->bdev,b),
 				raid_disk);
 			working_disks++;
-		}
+		} else
+			/* Cannot rely on bitmap to complete recovery */
+			conf->fullsync = 1;
 	}
 
 	/*