diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/cfq-iosched.c | 58 |
1 files changed, 16 insertions, 42 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 5e4bae7f415..86f0f4796fd 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -182,8 +182,6 @@ struct cfq_rq { struct cfq_queue *cfq_queue; struct cfq_io_context *io_context; - - unsigned int crq_flags; }; enum cfqq_state_flags { @@ -221,27 +219,6 @@ CFQ_CFQQ_FNS(idle_window); CFQ_CFQQ_FNS(prio_changed); #undef CFQ_CFQQ_FNS -enum cfq_rq_state_flags { - CFQ_CRQ_FLAG_is_sync = 0, -}; - -#define CFQ_CRQ_FNS(name) \ -static inline void cfq_mark_crq_##name(struct cfq_rq *crq) \ -{ \ - crq->crq_flags |= (1 << CFQ_CRQ_FLAG_##name); \ -} \ -static inline void cfq_clear_crq_##name(struct cfq_rq *crq) \ -{ \ - crq->crq_flags &= ~(1 << CFQ_CRQ_FLAG_##name); \ -} \ -static inline int cfq_crq_##name(const struct cfq_rq *crq) \ -{ \ - return (crq->crq_flags & (1 << CFQ_CRQ_FLAG_##name)) != 0; \ -} - -CFQ_CRQ_FNS(is_sync); -#undef CFQ_CRQ_FNS - static struct cfq_queue *cfq_find_cfq_hash(struct cfq_data *, unsigned int, unsigned short); static void cfq_dispatch_insert(request_queue_t *, struct cfq_rq *); static struct cfq_queue *cfq_get_queue(struct cfq_data *cfqd, unsigned int key, struct task_struct *tsk, gfp_t gfp_mask); @@ -290,9 +267,9 @@ cfq_choose_req(struct cfq_data *cfqd, struct cfq_rq *crq1, struct cfq_rq *crq2) if (crq2 == NULL) return crq1; - if (cfq_crq_is_sync(crq1) && !cfq_crq_is_sync(crq2)) + if (rq_is_sync(crq1->request) && !rq_is_sync(crq2->request)) return crq1; - else if (cfq_crq_is_sync(crq2) && !cfq_crq_is_sync(crq1)) + else if (rq_is_sync(crq2->request) && !rq_is_sync(crq1->request)) return crq2; s1 = crq1->request->sector; @@ -477,7 +454,7 @@ static inline void cfq_del_crq_rb(struct cfq_rq *crq) { struct cfq_queue *cfqq = crq->cfq_queue; struct cfq_data *cfqd = cfqq->cfqd; - const int sync = cfq_crq_is_sync(crq); + const int sync = rq_is_sync(crq->request); BUG_ON(!cfqq->queued[sync]); cfqq->queued[sync]--; @@ -495,7 +472,7 @@ static void cfq_add_crq_rb(struct cfq_rq *crq) struct request *rq = crq->request; struct request *__alias; - cfqq->queued[cfq_crq_is_sync(crq)]++; + cfqq->queued[rq_is_sync(rq)]++; /* * looks a little odd, but the first insert might return an alias. @@ -508,8 +485,10 @@ static void cfq_add_crq_rb(struct cfq_rq *crq) static inline void cfq_reposition_crq_rb(struct cfq_queue *cfqq, struct cfq_rq *crq) { - elv_rb_del(&cfqq->sort_list, crq->request); - cfqq->queued[cfq_crq_is_sync(crq)]--; + struct request *rq = crq->request; + + elv_rb_del(&cfqq->sort_list, rq); + cfqq->queued[rq_is_sync(rq)]--; cfq_add_crq_rb(crq); } @@ -814,11 +793,11 @@ static void cfq_dispatch_insert(request_queue_t *q, struct cfq_rq *crq) { struct cfq_data *cfqd = q->elevator->elevator_data; struct cfq_queue *cfqq = crq->cfq_queue; - struct request *rq; + struct request *rq = crq->request; - cfq_remove_request(crq->request); - cfqq->on_dispatch[cfq_crq_is_sync(crq)]++; - elv_dispatch_sort(q, crq->request); + cfq_remove_request(rq); + cfqq->on_dispatch[rq_is_sync(rq)]++; + elv_dispatch_sort(q, rq); rq = list_entry(q->queue_head.prev, struct request, queuelist); cfqd->last_sector = rq->sector + rq->nr_sectors; @@ -1585,7 +1564,7 @@ cfq_should_preempt(struct cfq_data *cfqd, struct cfq_queue *new_cfqq, */ if (new_cfqq->slice_left < cfqd->cfq_slice_idle) return 0; - if (cfq_crq_is_sync(crq) && !cfq_cfqq_sync(cfqq)) + if (rq_is_sync(crq->request) && !cfq_cfqq_sync(cfqq)) return 1; return 0; @@ -1634,7 +1613,7 @@ cfq_crq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq, struct cfq_io_context *cic = crq->io_context; /* - * check if this request is a better next-serve candidate + * check if this request is a better next-serve candidate)) { */ cfqq->next_crq = cfq_choose_req(cfqd, cfqq->next_crq, crq); BUG_ON(!cfqq->next_crq); @@ -1643,7 +1622,7 @@ cfq_crq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq, * we never wait for an async request and we don't allow preemption * of an async request. so just return early */ - if (!cfq_crq_is_sync(crq)) { + if (!rq_is_sync(crq->request)) { /* * sync process issued an async request, if it's waiting * then expire it and kick rq handling. @@ -1709,7 +1688,7 @@ static void cfq_completed_request(request_queue_t *q, struct request *rq) struct cfq_rq *crq = RQ_DATA(rq); struct cfq_queue *cfqq = crq->cfq_queue; struct cfq_data *cfqd = cfqq->cfqd; - const int sync = cfq_crq_is_sync(crq); + const int sync = rq_is_sync(rq); unsigned long now; now = jiffies; @@ -1905,11 +1884,6 @@ cfq_set_request(request_queue_t *q, struct request *rq, struct bio *bio, crq->cfq_queue = cfqq; crq->io_context = cic; - if (is_sync) - cfq_mark_crq_is_sync(crq); - else - cfq_clear_crq_is_sync(crq); - rq->elevator_private = crq; return 0; } |