md/raid1: remove unnecessary BUG_ON

Since bitmap_start_sync will not return until
sync_blocks is not less than PAGE_SIZE>>9, so
the BUG_ON is not needed anymore.

Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4e3843f7d24592cc596df1fc6d6c4577a9a6f57f..d1d5363b17f4d1ac0da467a015f2c042f9f1e4ee 100644 (file)
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2695,7 +2695,6 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
                            !conf->fullsync &&
                            !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
                                break;
-                       BUG_ON(sync_blocks < (PAGE_SIZE>>9));
                        if ((len >> 9) > sync_blocks)
                                len = sync_blocks<<9;
                }