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path: root/drivers/md/raid10.c
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-rw-r--r--drivers/md/raid10.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 3540316886f2..fff782189e48 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1821,7 +1821,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
for (j = 0; j < vcnt; j++)
if (memcmp(page_address(fbio->bi_io_vec[j].bv_page),
page_address(tbio->bi_io_vec[j].bv_page),
- PAGE_SIZE))
+ fbio->bi_io_vec[j].bv_len))
break;
if (j == vcnt)
continue;