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-rw-r--r--block/bio.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/bio.c b/block/bio.c
index 6c22dd7b6..74c2818c7 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -927,7 +927,7 @@ static bool bio_try_merge_hw_seg(struct request_queue *q, struct bio *bio,
if ((addr1 | mask) != (addr2 | mask))
return false;
- if (bv->bv_len + len > queue_max_segment_size(q))
+ if (len > queue_max_segment_size(q) - bv->bv_len)
return false;
return __bio_try_merge_page(bio, page, len, offset, same_page);
}