[Drbd-dev] [PATCH 04/10] zram: use memcpy_from_bvec in zram_bvec_write

[Christoph Hellwig]

Use memcpy_from_bvec instead of open coding the logic.

Signed-off-by: Christoph Hellwig <hch at lst.de>
Reviewed-by: Ira Weiny <ira.weiny at intel.com>
---
 drivers/block/zram/zram_drv.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 14becdf2815df..e9474b02012de 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1465,7 +1465,6 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
 {
 	int ret;
 	struct page *page = NULL;
-	void *src;
 	struct bio_vec vec;
 
 	vec = *bvec;
@@ -1483,11 +1482,9 @@ static int zram_bvec_write(struct zram *zram, struct bio_vec *bvec,
 		if (ret)
 			goto out;
 
-		src = kmap_atomic(bvec->bv_page);
 		dst = kmap_atomic(page);
-		memcpy(dst + offset, src + bvec->bv_offset, bvec->bv_len);
+		memcpy_from_bvec(dst + offset, bvec);
 		kunmap_atomic(dst);
-		kunmap_atomic(src);
 
 		vec.bv_page = page;
 		vec.bv_len = PAGE_SIZE;
-- 
2.30.2