diff options
| -rw-r--r-- | block/cfq-iosched.c | 52 |
1 files changed, 35 insertions, 17 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 7c3893d4447a..39c43307dc6c 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -306,16 +306,6 @@ struct cfq_data { unsigned long last_delayed_sync; }; -static inline struct cfq_group *blkg_to_cfqg(struct blkio_group *blkg) -{ - return blkg_to_pdata(blkg, &blkio_policy_cfq); -} - -static inline struct blkio_group *cfqg_to_blkg(struct cfq_group *cfqg) -{ - return pdata_to_blkg(cfqg, &blkio_policy_cfq); -} - static struct cfq_group *cfq_get_next_cfqg(struct cfq_data *cfqd); static struct cfq_rb_root *service_tree_for(struct cfq_group *cfqg, @@ -377,6 +367,26 @@ CFQ_CFQQ_FNS(wait_busy); #undef CFQ_CFQQ_FNS #ifdef CONFIG_CFQ_GROUP_IOSCHED +static inline struct cfq_group *blkg_to_cfqg(struct blkio_group *blkg) +{ + return blkg_to_pdata(blkg, &blkio_policy_cfq); +} + +static inline struct blkio_group *cfqg_to_blkg(struct cfq_group *cfqg) +{ + return pdata_to_blkg(cfqg, &blkio_policy_cfq); +} + +static inline void cfqg_get(struct cfq_group *cfqg) +{ + return blkg_get(cfqg_to_blkg(cfqg)); +} + +static inline void cfqg_put(struct cfq_group *cfqg) +{ + return blkg_put(cfqg_to_blkg(cfqg)); +} + #define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \ blk_add_trace_msg((cfqd)->queue, "cfq%d%c %s " fmt, (cfqq)->pid, \ cfq_cfqq_sync((cfqq)) ? 'S' : 'A', \ @@ -386,11 +396,19 @@ CFQ_CFQQ_FNS(wait_busy); blk_add_trace_msg((cfqd)->queue, "%s " fmt, \ blkg_path(cfqg_to_blkg((cfqg))), ##args) \ -#else +#else /* CONFIG_CFQ_GROUP_IOSCHED */ + +static inline struct cfq_group *blkg_to_cfqg(struct blkio_group *blkg) { return NULL; } +static inline struct blkio_group *cfqg_to_blkg(struct cfq_group *cfqg) { return NULL; } +static inline void cfqg_get(struct cfq_group *cfqg) { } +static inline void cfqg_put(struct cfq_group *cfqg) { } + #define cfq_log_cfqq(cfqd, cfqq, fmt, args...) \ blk_add_trace_msg((cfqd)->queue, "cfq%d " fmt, (cfqq)->pid, ##args) #define cfq_log_cfqg(cfqd, cfqg, fmt, args...) do {} while (0) -#endif + +#endif /* CONFIG_CFQ_GROUP_IOSCHED */ + #define cfq_log(cfqd, fmt, args...) \ blk_add_trace_msg((cfqd)->queue, "cfq " fmt, ##args) @@ -1090,7 +1108,7 @@ static void cfq_link_cfqq_cfqg(struct cfq_queue *cfqq, struct cfq_group *cfqg) cfqq->cfqg = cfqg; /* cfqq reference on cfqg */ - blkg_get(cfqg_to_blkg(cfqg)); + cfqg_get(cfqg); } #else /* GROUP_IOSCHED */ @@ -2505,7 +2523,7 @@ static void cfq_put_queue(struct cfq_queue *cfqq) BUG_ON(cfq_cfqq_on_rr(cfqq)); kmem_cache_free(cfq_pool, cfqq); - blkg_put(cfqg_to_blkg(cfqg)); + cfqg_put(cfqg); } static void cfq_put_cooperator(struct cfq_queue *cfqq) @@ -3276,7 +3294,7 @@ static void cfq_put_request(struct request *rq) cfqq->allocated[rw]--; /* Put down rq reference on cfqg */ - blkg_put(cfqg_to_blkg(RQ_CFQG(rq))); + cfqg_put(RQ_CFQG(rq)); rq->elv.priv[0] = NULL; rq->elv.priv[1] = NULL; @@ -3364,7 +3382,7 @@ new_queue: cfqq->allocated[rw]++; cfqq->ref++; - blkg_get(cfqg_to_blkg(cfqq->cfqg)); + cfqg_get(cfqq->cfqg); rq->elv.priv[0] = cfqq; rq->elv.priv[1] = cfqq->cfqg; spin_unlock_irq(q->queue_lock); @@ -3545,7 +3563,7 @@ static int cfq_init_queue(struct request_queue *q) spin_lock_irq(q->queue_lock); cfq_link_cfqq_cfqg(&cfqd->oom_cfqq, cfqd->root_group); - blkg_put(cfqg_to_blkg(cfqd->root_group)); + cfqg_put(cfqd->root_group); spin_unlock_irq(q->queue_lock); init_timer(&cfqd->idle_slice_timer); |
