[PATCH] md: when resizing an array, we need to update resync_max_sectors as well as size

Without this, and attempt to 'grow' an array will claim to have synced the
extra part without actually having done anything.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 3 insertions, 0 deletions

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 5f253ee536bb..d3a64a04a6d8 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1468,6 +1468,7 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors)
                 set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
         }
         mddev->size = mddev->array_size;
+        mddev->resync_max_sectors = sectors;
         return 0;
 }
 
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 93a9726cc2d6..4698d5f79575 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1931,6 +1931,7 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors)
                 set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
         }
         mddev->size = sectors /2;
+        mddev->resync_max_sectors = sectors;
         return 0;
 }
 
diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c
index f62ea1a73d0d..f5ee16805111 100644
--- a/drivers/md/raid6main.c
+++ b/drivers/md/raid6main.c
@@ -2095,6 +2095,7 @@ static int raid6_resize(mddev_t *mddev, sector_t sectors)
                 set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
         }
         mddev->size = sectors /2;
+        mddev->resync_max_sectors = sectors;
         return 0;
 }