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| author | Christoph Hellwig <hch@lst.de> | 2018-09-24 09:43:50 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-09-24 12:33:54 -0600 |
| commit | 6a9f5f240adfdced863a098d34f8f05ca6ab9d5f (patch) | |
| tree | eb81b3a3073e9c03c03170468f2ba43ed7f43487 /block/blk.h | |
| parent | 27ca1d4ed04ea29dc77b47190a3cc82697023e76 (diff) | |
| download | linux-6a9f5f240adfdced863a098d34f8f05ca6ab9d5f.tar.gz | |
block: simplify BIOVEC_PHYS_MERGEABLE
Turn the macro into an inline, move it to blk.h and simplify the
arch hooks a bit.
Also rename the function to biovec_phys_mergeable as there is no need
to shout.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index 63035c95689c..aed99cbc1bca 100644 --- a/block/blk.h +++ b/block/blk.h @@ -149,6 +149,20 @@ static inline void blk_queue_enter_live(struct request_queue *q) percpu_ref_get(&q->q_usage_counter); } +#ifndef ARCH_BIOVEC_PHYS_MERGEABLE +#define ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2) true +#endif + +static inline bool biovec_phys_mergeable(const struct bio_vec *vec1, + const struct bio_vec *vec2) +{ + if (bvec_to_phys(vec1) + vec1->bv_len != bvec_to_phys(vec2)) + return false; + if (!ARCH_BIOVEC_PHYS_MERGEABLE(vec1, vec2)) + return false; + return true; +} + static inline bool __bvec_gap_to_prev(struct request_queue *q, struct bio_vec *bprv, unsigned int offset) { |