diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-01-31 16:57:29 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-01-31 14:00:34 -0700 |
| commit | 57292b58ddb58689e8c3b4c6eadbef10d9ca44dd (patch) | |
| tree | dd6e5af538b2f2684d2090781f668c7099a0455e /include/linux/blkdev.h | |
| parent | 09fc54ccc42744669e748434af5c2f8adcad900f (diff) | |
| download | linux-0-day-57292b58ddb58689e8c3b4c6eadbef10d9ca44dd.tar.gz linux-0-day-57292b58ddb58689e8c3b4c6eadbef10d9ca44dd.tar.xz | |
block: introduce blk_rq_is_passthrough
This can be used to check for fs vs non-fs requests and basically
removes all knowledge of BLOCK_PC specific from the block layer,
as well as preparing for removing the cmd_type field in struct request.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e4c5f284fe2d6..7121be0815178 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -242,6 +242,11 @@ struct request { struct request *next_rq; }; +static inline bool blk_rq_is_passthrough(struct request *rq) +{ + return rq->cmd_type != REQ_TYPE_FS; +} + static inline unsigned short req_get_ioprio(struct request *req) { return req->ioprio; @@ -698,9 +703,10 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q) ((rq)->cmd_flags & (REQ_FAILFAST_DEV|REQ_FAILFAST_TRANSPORT| \ REQ_FAILFAST_DRIVER)) -#define blk_account_rq(rq) \ - (((rq)->rq_flags & RQF_STARTED) && \ - ((rq)->cmd_type == REQ_TYPE_FS)) +static inline bool blk_account_rq(struct request *rq) +{ + return (rq->rq_flags & RQF_STARTED) && !blk_rq_is_passthrough(rq); +} #define blk_rq_cpu_valid(rq) ((rq)->cpu != -1) #define blk_bidi_rq(rq) ((rq)->next_rq != NULL) @@ -775,7 +781,7 @@ static inline void blk_clear_rl_full(struct request_list *rl, bool sync) static inline bool rq_mergeable(struct request *rq) { - if (rq->cmd_type != REQ_TYPE_FS) + if (blk_rq_is_passthrough(rq)) return false; if (req_op(rq) == REQ_OP_FLUSH) @@ -1049,7 +1055,7 @@ static inline unsigned int blk_rq_get_max_sectors(struct request *rq, { struct request_queue *q = rq->q; - if (unlikely(rq->cmd_type != REQ_TYPE_FS)) + if (blk_rq_is_passthrough(rq)) return q->limits.max_hw_sectors; if (!q->limits.chunk_sectors || |