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| author | Christoph Hellwig <hch@lst.de> | 2015-11-26 09:13:05 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-12-01 10:53:59 -0700 |
| commit | 6f3b0e8bcf3cbb87a7459b3ed018d31d918df3f8 (patch) | |
| tree | 78520f9313db6743cb1ba6feb805120e80113a8d /include/linux/blk-mq.h | |
| parent | d7cf931dd9f18ce8ee7a0a9b7813a19fb2c8f5e9 (diff) | |
| download | linux-6f3b0e8bcf3cbb87a7459b3ed018d31d918df3f8.tar.gz linux-6f3b0e8bcf3cbb87a7459b3ed018d31d918df3f8.tar.bz2 linux-6f3b0e8bcf3cbb87a7459b3ed018d31d918df3f8.zip | |
blk-mq: add a flags parameter to blk_mq_alloc_request
We already have the reserved flag, and a nowait flag awkwardly encoded as
a gfp_t. Add a real flags argument to make the scheme more extensible and
allow for a nicer calling convention.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index daf17d70aeca..7fc9296b5742 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -188,8 +188,14 @@ void blk_mq_insert_request(struct request *, bool, bool, bool); void blk_mq_free_request(struct request *rq); void blk_mq_free_hctx_request(struct blk_mq_hw_ctx *, struct request *rq); bool blk_mq_can_queue(struct blk_mq_hw_ctx *); + +enum { + BLK_MQ_REQ_NOWAIT = (1 << 0), /* return when out of requests */ + BLK_MQ_REQ_RESERVED = (1 << 1), /* allocate from reserved pool */ +}; + struct request *blk_mq_alloc_request(struct request_queue *q, int rw, - gfp_t gfp, bool reserved); + unsigned int flags); struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag); struct cpumask *blk_mq_tags_cpumask(struct blk_mq_tags *tags); |