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| author | Bart Van Assche <bart.vanassche@wdc.com> | 2017-11-09 10:49:59 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-11-10 19:53:25 -0700 |
| commit | 9a95e4ef709533efac4aafcb8bddf73f96db50ed (patch) | |
| tree | 09408a0a31c43f4ffd5e7d08ef68a1677edd9330 /block/blk-core.c | |
| parent | 3a0a529971ec4e2d933e9c7798db101dfb6b1aec (diff) | |
| download | lwn-9a95e4ef709533efac4aafcb8bddf73f96db50ed.tar.gz lwn-9a95e4ef709533efac4aafcb8bddf73f96db50ed.zip | |
block, nvme: Introduce blk_mq_req_flags_t
Several block layer and NVMe core functions accept a combination
of BLK_MQ_REQ_* flags through the 'flags' argument but there is
no verification at compile time whether the right type of block
layer flags is passed. Make it possible for sparse to verify this.
This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: linux-nvme@lists.infradead.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 29b08428ae45..7c54c195e79e 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -801,7 +801,7 @@ EXPORT_SYMBOL(blk_alloc_queue); * @q: request queue pointer * @flags: BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PREEMPT */ -int blk_queue_enter(struct request_queue *q, unsigned int flags) +int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags) { const bool preempt = flags & BLK_MQ_REQ_PREEMPT; @@ -1225,7 +1225,7 @@ int blk_update_nr_requests(struct request_queue *q, unsigned int nr) * Returns request pointer on success, with @q->queue_lock *not held*. */ static struct request *__get_request(struct request_list *rl, unsigned int op, - struct bio *bio, unsigned int flags) + struct bio *bio, blk_mq_req_flags_t flags) { struct request_queue *q = rl->q; struct request *rq; @@ -1408,7 +1408,7 @@ rq_starved: * Returns request pointer on success, with @q->queue_lock *not held*. */ static struct request *get_request(struct request_queue *q, unsigned int op, - struct bio *bio, unsigned int flags) + struct bio *bio, blk_mq_req_flags_t flags) { const bool is_sync = op_is_sync(op); DEFINE_WAIT(wait); @@ -1458,7 +1458,7 @@ retry: /* flags: BLK_MQ_REQ_PREEMPT and/or BLK_MQ_REQ_NOWAIT. */ static struct request *blk_old_get_request(struct request_queue *q, - unsigned int op, unsigned int flags) + unsigned int op, blk_mq_req_flags_t flags) { struct request *rq; gfp_t gfp_mask = flags & BLK_MQ_REQ_NOWAIT ? GFP_ATOMIC : @@ -1495,7 +1495,7 @@ static struct request *blk_old_get_request(struct request_queue *q, * @flags: BLK_MQ_REQ_* flags, e.g. BLK_MQ_REQ_NOWAIT. */ struct request *blk_get_request_flags(struct request_queue *q, unsigned int op, - unsigned int flags) + blk_mq_req_flags_t flags) { struct request *req; @@ -2291,7 +2291,7 @@ blk_qc_t generic_make_request(struct bio *bio) current->bio_list = bio_list_on_stack; do { struct request_queue *q = bio->bi_disk->queue; - unsigned int flags = bio->bi_opf & REQ_NOWAIT ? + blk_mq_req_flags_t flags = bio->bi_opf & REQ_NOWAIT ? BLK_MQ_REQ_NOWAIT : 0; if (likely(blk_queue_enter(q, flags) == 0)) { |