1 files changed, 25 insertions, 18 deletions

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4070eff6f0f8..cead918578a7 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -374,26 +374,26 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int
          * already.
          */
         if (atomic_dec_and_test(&r1_bio->remaining)) {
-                if (test_bit(R1BIO_BarrierRetry, &r1_bio->state)) {
+                if (test_bit(R1BIO_BarrierRetry, &r1_bio->state))
                         reschedule_retry(r1_bio);
-                        goto out;
-                }
-                /* it really is the end of this request */
-                if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
-                        /* free extra copy of the data pages */
-                        int i = bio->bi_vcnt;
-                        while (i--)
-                                safe_put_page(bio->bi_io_vec[i].bv_page);
+                else {
+                        /* it really is the end of this request */
+                        if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
+                                /* free extra copy of the data pages */
+                                int i = bio->bi_vcnt;
+                                while (i--)
+                                        safe_put_page(bio->bi_io_vec[i].bv_page);
+                        }
+                        /* clear the bitmap if all writes complete successfully */
+                        bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector,
+                                        r1_bio->sectors,
+                                        !test_bit(R1BIO_Degraded, &r1_bio->state),
+                                        behind);
+                        md_write_end(r1_bio->mddev);
+                        raid_end_bio_io(r1_bio);
                 }
-                /* clear the bitmap if all writes complete successfully */
-                bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector,
-                                r1_bio->sectors,
-                                !test_bit(R1BIO_Degraded, &r1_bio->state),
-                                behind);
-                md_write_end(r1_bio->mddev);
-                raid_end_bio_io(r1_bio);
         }
- out:
+
         if (to_put)
                 bio_put(to_put);
 
@@ -1625,6 +1625,12 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
         /* before building a request, check if we can skip these blocks..
          * This call the bitmap_start_sync doesn't actually record anything
          */
+        if (mddev->bitmap == NULL &&
+            mddev->recovery_cp == MaxSector &&
+            conf->fullsync == 0) {
+                *skipped = 1;
+                return max_sector - sector_nr;
+        }
         if (!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
             !conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
                 /* We can skip this block, and probably several more */
@@ -1888,7 +1894,8 @@ static int run(mddev_t *mddev)
 
                 disk = conf->mirrors + i;
 
-                if (!disk->rdev) {
+                if (!disk->rdev ||
+                    !test_bit(In_sync, &disk->rdev->flags)) {
                         disk->head_position = 0;
                         mddev->degraded++;
                 }