bcache allocator: send discards with correct size

diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index 443d03fbac4705bd97f5acf77f622e0562b7fc55..8eeab72b93e2c4fcf6573e6a63d768f40f8e5320 100644 (file)
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -331,7 +331,7 @@ static int bch_allocator_thread(void *arg)
                                mutex_unlock(&ca->set->bucket_lock);
                                blkdev_issue_discard(ca->bdev,
                                        bucket_to_sector(ca->set, bucket),
-                                       ca->sb.block_size, GFP_KERNEL, 0);
+                                       ca->sb.bucket_size, GFP_KERNEL, 0);
                                mutex_lock(&ca->set->bucket_lock);
                        }