In this case, 'sectors' can't be zero at all, so remove the check and let the bio be splitted. Reviewed-by: Christoph Hellwig <hch@xxxxxx> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> --- block/blk-merge.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/block/blk-merge.c b/block/blk-merge.c index 42ceb89bc566..39f2c1113423 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -129,9 +129,7 @@ static struct bio *blk_bio_segment_split(struct request_queue *q, nsegs++; sectors = max_sectors; } - if (sectors) - goto split; - /* Make this single bvec as the 1st segment */ + goto split; } if (bvprvp && blk_queue_cluster(q)) { -- 2.9.5