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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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drivers/md/bcache/util.h
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@@ -558,6 +558,7 @@ static inline unsigned fract_exp_two(unsigned x, unsigned fract_bits)
}
void bch_bio_map(struct bio *bio, void *base);
int bch_bio_alloc_pages(struct bio *bio, gfp_t gfp_mask);
static inline sector_t bdev_sectors(struct block_device *bdev)
{