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-rw-r--r--block/blk-merge.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index c1ad8abbd9d6..9402a7c3ba22 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -286,10 +286,16 @@ new_segment:
bvprv = bv;
bvprvp = &bvprv;
- if (bvec_split_segs(q, &bv, &nsegs, &seg_size,
- &front_seg_size, &sectors))
+ if (bv.bv_offset + bv.bv_len <= PAGE_SIZE) {
+ nsegs++;
+ seg_size = bv.bv_len;
+ sectors += bv.bv_len >> 9;
+ if (nsegs == 1 && seg_size > front_seg_size)
+ front_seg_size = seg_size;
+ } else if (bvec_split_segs(q, &bv, &nsegs, &seg_size,
+ &front_seg_size, &sectors)) {
goto split;
-
+ }
}
do_split = false;