1 files changed, 3 insertions, 1 deletions

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index efa111a7606d..49e444b51a0c 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1266,6 +1266,7 @@ static void ext4_mb_unload_buddy(struct ext4_buddy *e4b)
 static int mb_find_order_for_block(struct ext4_buddy *e4b, int block)
 {
         int order = 1;
+        int bb_incr = 1 << (e4b->bd_blkbits - 1);
         void *bb;
 
         BUG_ON(e4b->bd_bitmap == e4b->bd_buddy);
@@ -1278,7 +1279,8 @@ static int mb_find_order_for_block(struct ext4_buddy *e4b, int block)
                         /* this block is part of buddy of order 'order' */
                         return order;
                 }
-                bb += 1 << (e4b->bd_blkbits - order);
+                bb += bb_incr;
+                bb_incr >>= 1;
                 order++;
         }
         return 0;