[PATCH 09/16] ps3disk: use memcpy_{from,to}_bvec

[Christoph Hellwig <hch@xxxxxx>]

Use the bvec helpers instead of open coding the copy.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 drivers/block/ps3disk.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index ba3ece56cbb3..f2eb0225814f 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -84,26 +84,13 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev,
 	unsigned int offset = 0;
 	struct req_iterator iter;
 	struct bio_vec bvec;
-	unsigned int i = 0;
-	size_t size;
-	void *buf;
 
 	rq_for_each_segment(bvec, req, iter) {
-		unsigned long flags;
-		dev_dbg(&dev->sbd.core, "%s:%u: bio %u: %u sectors from %llu\n",
-			__func__, __LINE__, i, bio_sectors(iter.bio),
-			iter.bio->bi_iter.bi_sector);
-
-		size = bvec.bv_len;
-		buf = bvec_kmap_irq(&bvec, &flags);
 		if (gather)
-			memcpy(dev->bounce_buf+offset, buf, size);
+			memcpy_from_bvec(dev->bounce_buf + offset, &bvec);
 		else
-			memcpy(buf, dev->bounce_buf+offset, size);
-		offset += size;
-		flush_kernel_dcache_page(bvec.bv_page);
-		bvec_kunmap_irq(buf, &flags);
-		i++;
+			memcpy_to_bvec(&bvec, dev->bounce_buf + offset);
+		offset += bvec.bv_len;
 	}
 }
 
-- 
2.30.2