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block: use bio_release_pages in bio_unmap_user

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Use bio_release_pages instead of open coding it.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2019-06-26 15:49:22 +02:00 committed by Jens Axboe
parent d241a95f35
commit 163cc2d3cd
1 changed files with 2 additions and 19 deletions
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21
block/bio.c
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@ -1437,24 +1437,6 @@ struct bio *bio_map_user_iov(struct request_queue *q,
return ERR_PTR(ret);
}
static void __bio_unmap_user(struct bio *bio)
{
struct bio_vec *bvec;
struct bvec_iter_all iter_all;
/*
* make sure we dirty pages we wrote to
*/
bio_for_each_segment_all(bvec, bio, iter_all) {
if (bio_data_dir(bio) == READ)
set_page_dirty_lock(bvec->bv_page);
put_page(bvec->bv_page);
}
bio_put(bio);
}
/**
* bio_unmap_user - unmap a bio
* @bio: the bio being unmapped
@ -1466,7 +1448,8 @@ static void __bio_unmap_user(struct bio *bio)
*/
void bio_unmap_user(struct bio *bio)
{
__bio_unmap_user(bio);
bio_release_pages(bio, bio_data_dir(bio) == READ);
bio_put(bio);
bio_put(bio);
}