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authorMing Lin <ming.l@ssi.samsung.com>2016-03-22 10:24:44 +0300
committerJens Axboe <axboe@fb.com>2016-04-12 22:13:23 +0300
commit37e58237a16b94fcd2c2d1b7e9c6e1ca661c231b (patch)
tree0225607142a78e0f110831626c033386e3c1694c /block
parent81b76485afb54e3efeb1de5edbef761f4ad2830e (diff)
downloadlinux-37e58237a16b94fcd2c2d1b7e9c6e1ca661c231b.tar.xz
block: add offset in blk_add_request_payload()
We could kmalloc() the payload, so need the offset in page. Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block')
-rw-r--r--block/blk-core.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index b60537b2c35b..c50227796a26 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1523,6 +1523,7 @@ EXPORT_SYMBOL(blk_put_request);
* blk_add_request_payload - add a payload to a request
* @rq: request to update
* @page: page backing the payload
+ * @offset: offset in page
* @len: length of the payload.
*
* This allows to later add a payload to an already submitted request by
@@ -1533,12 +1534,12 @@ EXPORT_SYMBOL(blk_put_request);
* discard requests should ever use it.
*/
void blk_add_request_payload(struct request *rq, struct page *page,
- unsigned int len)
+ int offset, unsigned int len)
{
struct bio *bio = rq->bio;
bio->bi_io_vec->bv_page = page;
- bio->bi_io_vec->bv_offset = 0;
+ bio->bi_io_vec->bv_offset = offset;
bio->bi_io_vec->bv_len = len;
bio->bi_iter.bi_size = len;