diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-01-31 16:57:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-25 15:54:25 +0100 |
| commit | 642fa50e555d2cb7812cdc470257b0251a3947af (patch) | |
| tree | 3ff72ebbaefc6f105e8181839a19ebffd18506c7 /include | |
| parent | b4ca3857b8e7bc876453c24ad0e76bf744ef8af0 (diff) | |
block: introduce blk_rq_is_passthrough
commit 57292b58ddb58689e8c3b4c6eadbef10d9ca44dd upstream.
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>
[only take the blkdev.h changes as we only want the function for backported
patches - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -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 1383e1c03ff2..e4b945925e40 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -199,6 +199,11 @@ 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; @@ -582,9 +587,10 @@ 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)->cmd_flags & REQ_STARTED) && \ - ((rq)->cmd_type == REQ_TYPE_FS)) +static inline bool blk_account_rq(struct request *rq) +{ + return (rq->cmd_flags & REQ_STARTED) && !blk_rq_is_passthrough(rq); +} #define blk_rq_cpu_valid(rq) ((rq)->cpu != -1) #define blk_bidi_rq(rq) ((rq)->next_rq != NULL) @@ -645,7 +651,7 @@ 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 (rq->cmd_flags & REQ_NOMERGE_FLAGS) @@ -890,7 +896,7 @@ 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 || (rq->cmd_flags & REQ_DISCARD)) |