Commit b2d0d991 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe

block: move the BIO_NO_PAGE_REF check into bio_release_pages

Move the BIO_NO_PAGE_REF check into bio_release_pages instead of
duplicating it in both callers.

Also make the function available outside of bio.c so that we can
reuse it in other direct I/O implementations.
Reviewed-by: default avatarMinwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 5f2ab0c1
......@@ -845,11 +845,14 @@ static void bio_get_pages(struct bio *bio)
get_page(bvec->bv_page);
}
static void bio_release_pages(struct bio *bio)
void bio_release_pages(struct bio *bio)
{
struct bvec_iter_all iter_all;
struct bio_vec *bvec;
if (bio_flagged(bio, BIO_NO_PAGE_REF))
return;
bio_for_each_segment_all(bvec, bio, iter_all)
put_page(bvec->bv_page);
}
......@@ -1681,8 +1684,7 @@ static void bio_dirty_fn(struct work_struct *work)
next = bio->bi_private;
bio_set_pages_dirty(bio);
if (!bio_flagged(bio, BIO_NO_PAGE_REF))
bio_release_pages(bio);
bio_release_pages(bio);
bio_put(bio);
}
}
......@@ -1698,8 +1700,7 @@ void bio_check_pages_dirty(struct bio *bio)
goto defer;
}
if (!bio_flagged(bio, BIO_NO_PAGE_REF))
bio_release_pages(bio);
bio_release_pages(bio);
bio_put(bio);
return;
defer:
......
......@@ -426,6 +426,7 @@ bool __bio_try_merge_page(struct bio *bio, struct page *page,
void __bio_add_page(struct bio *bio, struct page *page,
unsigned int len, unsigned int off);
int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter);
void bio_release_pages(struct bio *bio);
struct rq_map_data;
extern struct bio *bio_map_user_iov(struct request_queue *,
struct iov_iter *, gfp_t);
......
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