1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index f8a9f7ab2cb8..1fb91edc7de2 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1479,6 +1479,7 @@ void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector)
                 s += blocks;
         }
         bitmap->last_end_sync = jiffies;
+        sysfs_notify(&bitmap->mddev->kobj, NULL, "sync_completed");
 }
 
 static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset, int needed)
@@ -1589,7 +1590,7 @@ void bitmap_destroy(mddev_t *mddev)
 int bitmap_create(mddev_t *mddev)
 {
         struct bitmap *bitmap;
-        unsigned long blocks = mddev->resync_max_sectors;
+        sector_t blocks = mddev->resync_max_sectors;
         unsigned long chunks;
         unsigned long pages;
         struct file *file = mddev->bitmap_file;
@@ -1631,8 +1632,8 @@ int bitmap_create(mddev_t *mddev)
         bitmap->chunkshift = ffz(~bitmap->chunksize);
 
         /* now that chunksize and chunkshift are set, we can use these macros */
-        chunks = (blocks + CHUNK_BLOCK_RATIO(bitmap) - 1) /
-                        CHUNK_BLOCK_RATIO(bitmap);
+        chunks = (blocks + CHUNK_BLOCK_RATIO(bitmap) - 1) >>
+                        CHUNK_BLOCK_SHIFT(bitmap);
         pages = (chunks + PAGE_COUNTER_RATIO - 1) / PAGE_COUNTER_RATIO;
 
         BUG_ON(!pages);