提交 f1ba8261 编写于 作者: P Paolo Valente 提交者: Jens Axboe

blk-mq: pass bio to blk_mq_sched_get_rq_priv

bio is used in bfq-mq's get_rq_priv, to get the request group. We could
pass directly the group here, but I thought that passing the bio was
more general, giving the possibility to get other pieces of information
if needed.
Signed-off-by: NPaolo Valente <paolo.valente@linaro.org>
Signed-off-by: NJens Axboe <axboe@fb.com>
上级 5f478e4e
......@@ -68,7 +68,9 @@ int blk_mq_sched_init_hctx_data(struct request_queue *q, size_t size,
EXPORT_SYMBOL_GPL(blk_mq_sched_init_hctx_data);
static void __blk_mq_sched_assign_ioc(struct request_queue *q,
struct request *rq, struct io_context *ioc)
struct request *rq,
struct bio *bio,
struct io_context *ioc)
{
struct io_cq *icq;
......@@ -83,7 +85,7 @@ static void __blk_mq_sched_assign_ioc(struct request_queue *q,
}
rq->elv.icq = icq;
if (!blk_mq_sched_get_rq_priv(q, rq)) {
if (!blk_mq_sched_get_rq_priv(q, rq, bio)) {
rq->rq_flags |= RQF_ELVPRIV;
get_io_context(icq->ioc);
return;
......@@ -99,7 +101,7 @@ static void blk_mq_sched_assign_ioc(struct request_queue *q,
ioc = rq_ioc(bio);
if (ioc)
__blk_mq_sched_assign_ioc(q, rq, ioc);
__blk_mq_sched_assign_ioc(q, rq, bio, ioc);
}
struct request *blk_mq_sched_get_request(struct request_queue *q,
......
......@@ -49,12 +49,13 @@ blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio)
}
static inline int blk_mq_sched_get_rq_priv(struct request_queue *q,
struct request *rq)
struct request *rq,
struct bio *bio)
{
struct elevator_queue *e = q->elevator;
if (e && e->type->ops.mq.get_rq_priv)
return e->type->ops.mq.get_rq_priv(q, rq);
return e->type->ops.mq.get_rq_priv(q, rq, bio);
return 0;
}
......
......@@ -109,7 +109,7 @@ struct elevator_mq_ops {
void (*requeue_request)(struct request *);
struct request *(*former_request)(struct request_queue *, struct request *);
struct request *(*next_request)(struct request_queue *, struct request *);
int (*get_rq_priv)(struct request_queue *, struct request *);
int (*get_rq_priv)(struct request_queue *, struct request *, struct bio *);
void (*put_rq_priv)(struct request_queue *, struct request *);
void (*init_icq)(struct io_cq *);
void (*exit_icq)(struct io_cq *);
......
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