block: rename __bio_add_pc_page to bio_add_hw_page
Rename __bio_add_pc_page() to bio_add_hw_page() and explicitly pass in a
max_sectors argument.
This max_sectors argument can be used to specify constraints from the
hardware.
Signed-off-by: Christoph Hellwig <hch@lst.de>
[ jth: rebased and made public for blk-map.c ]
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/blk-map.c b/block/blk-map.c
index b6fa343..e3e4ac4 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -257,6 +257,7 @@ static struct bio *bio_copy_user_iov(struct request_queue *q,
static struct bio *bio_map_user_iov(struct request_queue *q,
struct iov_iter *iter, gfp_t gfp_mask)
{
+ unsigned int max_sectors = queue_max_hw_sectors(q);
int j;
struct bio *bio;
int ret;
@@ -294,8 +295,8 @@ static struct bio *bio_map_user_iov(struct request_queue *q,
if (n > bytes)
n = bytes;
- if (!__bio_add_pc_page(q, bio, page, n, offs,
- &same_page)) {
+ if (!bio_add_hw_page(q, bio, page, n, offs,
+ max_sectors, &same_page)) {
if (same_page)
put_page(page);
break;
