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block: move bio_alloc_pages() to bcache

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bcache is the only user of bio_alloc_pages(), so move this function into
bcache, and avoid it being misused in the future.

Also rename it to bch_bio_allo_pages() since it is bcache only.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ming Lei 2017-12-18 20:22:10 +08:00 • committed by Jens Axboe
parent c2421edf5f
commit 25d8be77e1
9 changed files with 33 additions and 34 deletions
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include/linux/bio.h
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@ -500,7 +500,6 @@ static inline void bio_flush_dcache_pages(struct bio *bi)
#endif
extern void bio_copy_data(struct bio *dst, struct bio *src);
extern int bio_alloc_pages(struct bio *bio, gfp_t gfp);
extern void bio_free_pages(struct bio *bio);
extern struct bio *bio_copy_user_iov(struct request_queue *,