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Commit c1768268 authored by Tejun Heo's avatar Tejun Heo Committed by Jens Axboe
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blkcg: don't use blkg->plid in stat related functions 

blkg is scheduled to be unified for all policies and thus there won't
be one-to-one mapping from blkg to policy.  Update stat related
functions to take explicit @pol or @plid arguments and not use
blkg->plid.

This is painful for now but most of specific stat interface functions
will be replaced with a handful of generic helpers.
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 549d3aa8
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Showing with 224 additions and 150 deletions
block/blk-cgroup.c
View file @ c1768268
This diff is collapsed.
block/blk-cgroup.h
View file @ c1768268
......@@ -335,12 +335,17 @@ static inline void blkg_put(struct blkio_group *blkg) { }
#define BLKIO_WEIGHT_DEFAULT 500
#ifdef CONFIG_DEBUG_BLK_CGROUP
void blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg);
void blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol);
void blkiocg_update_dequeue_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol,
unsigned long dequeue);
void blkiocg_update_set_idle_time_stats(struct blkio_group *blkg);
void blkiocg_update_idle_time_stats(struct blkio_group *blkg);
void blkiocg_set_start_empty_time(struct blkio_group *blkg);
void blkiocg_update_set_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol);
void blkiocg_update_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol);
void blkiocg_set_start_empty_time(struct blkio_group *blkg,
struct blkio_policy_type *pol);
#define BLKG_FLAG_FNS(name) \
static inline void blkio_mark_blkg_##name( \
......@@ -363,14 +368,16 @@ BLKG_FLAG_FNS(idling)
BLKG_FLAG_FNS(empty)
#undef BLKG_FLAG_FNS
#else
static inline void blkiocg_update_avg_queue_size_stats(
struct blkio_group *blkg) {}
static inline void blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
static inline void blkiocg_update_dequeue_stats(struct blkio_group *blkg,
unsigned long dequeue) {}
static inline void blkiocg_update_set_idle_time_stats(struct blkio_group *blkg)
{}
static inline void blkiocg_update_idle_time_stats(struct blkio_group *blkg) {}
static inline void blkiocg_set_start_empty_time(struct blkio_group *blkg) {}
struct blkio_policy_type *pol, unsigned long dequeue) { }
static inline void blkiocg_update_set_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
static inline void blkiocg_update_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
static inline void blkiocg_set_start_empty_time(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
#endif
#ifdef CONFIG_BLK_CGROUP
......@@ -386,17 +393,26 @@ struct blkio_group *blkg_lookup_create(struct blkio_cgroup *blkcg,
enum blkio_policy_id plid,
bool for_root);
void blkiocg_update_timeslice_used(struct blkio_group *blkg,
struct blkio_policy_type *pol,
unsigned long time,
unsigned long unaccounted_time);
void blkiocg_update_dispatch_stats(struct blkio_group *blkg, uint64_t bytes,
bool direction, bool sync);
void blkiocg_update_dispatch_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol,
uint64_t bytes, bool direction, bool sync);
void blkiocg_update_completion_stats(struct blkio_group *blkg,
uint64_t start_time, uint64_t io_start_time, bool direction, bool sync);
void blkiocg_update_io_merged_stats(struct blkio_group *blkg, bool direction,
struct blkio_policy_type *pol,
uint64_t start_time,
uint64_t io_start_time, bool direction,
bool sync);
void blkiocg_update_io_merged_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol,
bool direction, bool sync);
void blkiocg_update_io_add_stats(struct blkio_group *blkg,
struct blkio_group *curr_blkg, bool direction, bool sync);
struct blkio_policy_type *pol,
struct blkio_group *curr_blkg, bool direction,
bool sync);
void blkiocg_update_io_remove_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol,
bool direction, bool sync);
#else
struct cgroup;
......@@ -411,19 +427,23 @@ blkiocg_del_blkio_group(struct blkio_group *blkg) { return 0; }
static inline struct blkio_group *blkg_lookup(struct blkio_cgroup *blkcg,
void *key) { return NULL; }
static inline void blkiocg_update_timeslice_used(struct blkio_group *blkg,
unsigned long time,
unsigned long unaccounted_time)
{}
struct blkio_policy_type *pol, unsigned long time,
unsigned long unaccounted_time) { }
static inline void blkiocg_update_dispatch_stats(struct blkio_group *blkg,
uint64_t bytes, bool direction, bool sync) {}
struct blkio_policy_type *pol, uint64_t bytes,
bool direction, bool sync) { }
static inline void blkiocg_update_completion_stats(struct blkio_group *blkg,
uint64_t start_time, uint64_t io_start_time, bool direction,
bool sync) {}
struct blkio_policy_type *pol, uint64_t start_time,
uint64_t io_start_time, bool direction, bool sync) { }
static inline void blkiocg_update_io_merged_stats(struct blkio_group *blkg,
bool direction, bool sync) {}
struct blkio_policy_type *pol, bool direction,
bool sync) { }
static inline void blkiocg_update_io_add_stats(struct blkio_group *blkg,
struct blkio_group *curr_blkg, bool direction, bool sync) {}
struct blkio_policy_type *pol,
struct blkio_group *curr_blkg, bool direction,
bool sync) { }
static inline void blkiocg_update_io_remove_stats(struct blkio_group *blkg,
bool direction, bool sync) {}
struct blkio_policy_type *pol, bool direction,
bool sync) { }
#endif
#endif /* _BLK_CGROUP_H */
block/blk-throttle.c
View file @ c1768268
......@@ -588,7 +588,8 @@ static void throtl_charge_bio(struct throtl_grp *tg, struct bio *bio)
tg->bytes_disp[rw] += bio->bi_size;
tg->io_disp[rw]++;
blkiocg_update_dispatch_stats(tg_to_blkg(tg), bio->bi_size, rw, sync);
blkiocg_update_dispatch_stats(tg_to_blkg(tg), &blkio_policy_throtl,
bio->bi_size, rw, sync);
}
static void throtl_add_bio_tg(struct throtl_data *td, struct throtl_grp *tg,
......@@ -1000,6 +1001,7 @@ bool blk_throtl_bio(struct request_queue *q, struct bio *bio)
if (tg) {
if (tg_no_rule_group(tg, rw)) {
blkiocg_update_dispatch_stats(tg_to_blkg(tg),
&blkio_policy_throtl,
bio->bi_size, rw,
rw_is_sync(bio->bi_rw));
goto out_unlock_rcu;
......
block/cfq-iosched.c
View file @ c1768268
......@@ -945,7 +945,8 @@ cfq_group_notify_queue_del(struct cfq_data *cfqd, struct cfq_group *cfqg)
cfq_log_cfqg(cfqd, cfqg, "del_from_rr group");
cfq_group_service_tree_del(st, cfqg);
cfqg->saved_workload_slice = 0;
cfq_blkiocg_update_dequeue_stats(cfqg_to_blkg(cfqg), 1);
cfq_blkiocg_update_dequeue_stats(cfqg_to_blkg(cfqg),
&blkio_policy_cfq, 1);
}
static inline unsigned int cfq_cfqq_slice_usage(struct cfq_queue *cfqq,
......@@ -1017,9 +1018,9 @@ static void cfq_group_served(struct cfq_data *cfqd, struct cfq_group *cfqg,
"sl_used=%u disp=%u charge=%u iops=%u sect=%lu",
used_sl, cfqq->slice_dispatch, charge,
iops_mode(cfqd), cfqq->nr_sectors);
cfq_blkiocg_update_timeslice_used(cfqg_to_blkg(cfqg), used_sl,
unaccounted_sl);
cfq_blkiocg_set_start_empty_time(cfqg_to_blkg(cfqg));
cfq_blkiocg_update_timeslice_used(cfqg_to_blkg(cfqg), &blkio_policy_cfq,
used_sl, unaccounted_sl);
cfq_blkiocg_set_start_empty_time(cfqg_to_blkg(cfqg), &blkio_policy_cfq);
}
/**
......@@ -1463,9 +1464,11 @@ static void cfq_reposition_rq_rb(struct cfq_queue *cfqq, struct request *rq)
elv_rb_del(&cfqq->sort_list, rq);
cfqq->queued[rq_is_sync(rq)]--;
cfq_blkiocg_update_io_remove_stats(cfqg_to_blkg(RQ_CFQG(rq)),
rq_data_dir(rq), rq_is_sync(rq));
&blkio_policy_cfq, rq_data_dir(rq),
rq_is_sync(rq));
cfq_add_rq_rb(rq);
cfq_blkiocg_update_io_add_stats(cfqg_to_blkg(RQ_CFQG(rq)),
&blkio_policy_cfq,
cfqg_to_blkg(cfqq->cfqd->serving_group),
rq_data_dir(rq), rq_is_sync(rq));
}
......@@ -1524,7 +1527,8 @@ static void cfq_remove_request(struct request *rq)
cfqq->cfqd->rq_queued--;
cfq_blkiocg_update_io_remove_stats(cfqg_to_blkg(RQ_CFQG(rq)),
rq_data_dir(rq), rq_is_sync(rq));
&blkio_policy_cfq, rq_data_dir(rq),
rq_is_sync(rq));
if (rq->cmd_flags & REQ_PRIO) {
WARN_ON(!cfqq->prio_pending);
cfqq->prio_pending--;
......@@ -1560,7 +1564,8 @@ static void cfq_bio_merged(struct request_queue *q, struct request *req,
struct bio *bio)
{
cfq_blkiocg_update_io_merged_stats(cfqg_to_blkg(RQ_CFQG(req)),
bio_data_dir(bio), cfq_bio_sync(bio));
&blkio_policy_cfq, bio_data_dir(bio),
cfq_bio_sync(bio));
}
static void
......@@ -1583,7 +1588,8 @@ cfq_merged_requests(struct request_queue *q, struct request *rq,
cfqq->next_rq = rq;
cfq_remove_request(next);
cfq_blkiocg_update_io_merged_stats(cfqg_to_blkg(RQ_CFQG(rq)),
rq_data_dir(next), rq_is_sync(next));
&blkio_policy_cfq, rq_data_dir(next),
rq_is_sync(next));
cfqq = RQ_CFQQ(next);
/*
......@@ -1624,7 +1630,8 @@ static int cfq_allow_merge(struct request_queue *q, struct request *rq,
static inline void cfq_del_timer(struct cfq_data *cfqd, struct cfq_queue *cfqq)
{
del_timer(&cfqd->idle_slice_timer);
cfq_blkiocg_update_idle_time_stats(cfqg_to_blkg(cfqq->cfqg));
cfq_blkiocg_update_idle_time_stats(cfqg_to_blkg(cfqq->cfqg),
&blkio_policy_cfq);
}
static void __cfq_set_active_queue(struct cfq_data *cfqd,
......@@ -1633,7 +1640,8 @@ static void __cfq_set_active_queue(struct cfq_data *cfqd,
if (cfqq) {
cfq_log_cfqq(cfqd, cfqq, "set_active wl_prio:%d wl_type:%d",
cfqd->serving_prio, cfqd->serving_type);
cfq_blkiocg_update_avg_queue_size_stats(cfqg_to_blkg(cfqq->cfqg));
cfq_blkiocg_update_avg_queue_size_stats(cfqg_to_blkg(cfqq->cfqg),
&blkio_policy_cfq);
cfqq->slice_start = 0;
cfqq->dispatch_start = jiffies;
cfqq->allocated_slice = 0;
......@@ -1981,7 +1989,8 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
sl = cfqd->cfq_slice_idle;
mod_timer(&cfqd->idle_slice_timer, jiffies + sl);
cfq_blkiocg_update_set_idle_time_stats(cfqg_to_blkg(cfqq->cfqg));
cfq_blkiocg_update_set_idle_time_stats(cfqg_to_blkg(cfqq->cfqg),
&blkio_policy_cfq);
cfq_log_cfqq(cfqd, cfqq, "arm_idle: %lu group_idle: %d", sl,
group_idle ? 1 : 0);
}
......@@ -2005,8 +2014,8 @@ static void cfq_dispatch_insert(struct request_queue *q, struct request *rq)
cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]++;
cfqq->nr_sectors += blk_rq_sectors(rq);
cfq_blkiocg_update_dispatch_stats(cfqg_to_blkg(cfqq->cfqg),
blk_rq_bytes(rq), rq_data_dir(rq),
rq_is_sync(rq));
&blkio_policy_cfq, blk_rq_bytes(rq),
rq_data_dir(rq), rq_is_sync(rq));
}
/*
......@@ -3094,7 +3103,8 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq,
__blk_run_queue(cfqd->queue);
} else {
cfq_blkiocg_update_idle_time_stats(
cfqg_to_blkg(cfqq->cfqg));
cfqg_to_blkg(cfqq->cfqg),
&blkio_policy_cfq);
cfq_mark_cfqq_must_dispatch(cfqq);
}
}
......@@ -3122,6 +3132,7 @@ static void cfq_insert_request(struct request_queue *q, struct request *rq)
list_add_tail(&rq->queuelist, &cfqq->fifo);
cfq_add_rq_rb(rq);
cfq_blkiocg_update_io_add_stats(cfqg_to_blkg(RQ_CFQG(rq)),
&blkio_policy_cfq,
cfqg_to_blkg(cfqd->serving_group),
rq_data_dir(rq), rq_is_sync(rq));
cfq_rq_enqueued(cfqd, cfqq, rq);
......@@ -3220,8 +3231,9 @@ static void cfq_completed_request(struct request_queue *q, struct request *rq)
cfqq->dispatched--;
(RQ_CFQG(rq))->dispatched--;
cfq_blkiocg_update_completion_stats(cfqg_to_blkg(cfqq->cfqg),
rq_start_time_ns(rq), rq_io_start_time_ns(rq),
rq_data_dir(rq), rq_is_sync(rq));
&blkio_policy_cfq, rq_start_time_ns(rq),
rq_io_start_time_ns(rq), rq_data_dir(rq),
rq_is_sync(rq));
cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]--;
......
block/cfq.h
View file @ c1768268
......@@ -4,66 +4,78 @@
#ifdef CONFIG_CFQ_GROUP_IOSCHED
static inline void cfq_blkiocg_update_io_add_stats(struct blkio_group *blkg,
struct blkio_group *curr_blkg, bool direction, bool sync)
struct blkio_policy_type *pol,
struct blkio_group *curr_blkg,
bool direction, bool sync)
{
blkiocg_update_io_add_stats(blkg, curr_blkg, direction, sync);
blkiocg_update_io_add_stats(blkg, pol, curr_blkg, direction, sync);
}
static inline void cfq_blkiocg_update_dequeue_stats(struct blkio_group *blkg,
unsigned long dequeue)
struct blkio_policy_type *pol, unsigned long dequeue)
{
blkiocg_update_dequeue_stats(blkg, dequeue);
blkiocg_update_dequeue_stats(blkg, pol, dequeue);
}
static inline void cfq_blkiocg_update_timeslice_used(struct blkio_group *blkg,
unsigned long time, unsigned long unaccounted_time)
struct blkio_policy_type *pol, unsigned long time,
unsigned long unaccounted_time)
{
blkiocg_update_timeslice_used(blkg, time, unaccounted_time);
blkiocg_update_timeslice_used(blkg, pol, time, unaccounted_time);
}
static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg)
static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg,
struct blkio_policy_type *pol)
{
blkiocg_set_start_empty_time(blkg);
blkiocg_set_start_empty_time(blkg, pol);
}
static inline void cfq_blkiocg_update_io_remove_stats(struct blkio_group *blkg,
bool direction, bool sync)
struct blkio_policy_type *pol, bool direction,
bool sync)
{
blkiocg_update_io_remove_stats(blkg, direction, sync);
blkiocg_update_io_remove_stats(blkg, pol, direction, sync);
}
static inline void cfq_blkiocg_update_io_merged_stats(struct blkio_group *blkg,
bool direction, bool sync)
struct blkio_policy_type *pol, bool direction,
bool sync)
{
blkiocg_update_io_merged_stats(blkg, direction, sync);
blkiocg_update_io_merged_stats(blkg, pol, direction, sync);
}
static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg)
static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol)
{
blkiocg_update_idle_time_stats(blkg);
blkiocg_update_idle_time_stats(blkg, pol);
}
static inline void
cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg)
cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol)
{
blkiocg_update_avg_queue_size_stats(blkg);
blkiocg_update_avg_queue_size_stats(blkg, pol);
}
static inline void
cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg)
cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol)
{
blkiocg_update_set_idle_time_stats(blkg);
blkiocg_update_set_idle_time_stats(blkg, pol);
}
static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
uint64_t bytes, bool direction, bool sync)
struct blkio_policy_type *pol, uint64_t bytes,
bool direction, bool sync)
{
blkiocg_update_dispatch_stats(blkg, bytes, direction, sync);
blkiocg_update_dispatch_stats(blkg, pol, bytes, direction, sync);
}
static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync)
static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol, uint64_t start_time,
uint64_t io_start_time, bool direction, bool sync)
{
blkiocg_update_completion_stats(blkg, start_time, io_start_time,
blkiocg_update_completion_stats(blkg, pol, start_time, io_start_time,
direction, sync);
}
......@@ -74,30 +86,38 @@ static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
#else /* CFQ_GROUP_IOSCHED */
static inline void cfq_blkiocg_update_io_add_stats(struct blkio_group *blkg,
struct blkio_group *curr_blkg, bool direction, bool sync) {}
struct blkio_policy_type *pol,
struct blkio_group *curr_blkg, bool direction,
bool sync) { }
static inline void cfq_blkiocg_update_dequeue_stats(struct blkio_group *blkg,
unsigned long dequeue) {}
struct blkio_policy_type *pol, unsigned long dequeue) { }
static inline void cfq_blkiocg_update_timeslice_used(struct blkio_group *blkg,
unsigned long time, unsigned long unaccounted_time) {}
static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg) {}
struct blkio_policy_type *pol, unsigned long time,
unsigned long unaccounted_time) { }
static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
static inline void cfq_blkiocg_update_io_remove_stats(struct blkio_group *blkg,
bool direction, bool sync) {}
struct blkio_policy_type *pol, bool direction,
bool sync) { }
static inline void cfq_blkiocg_update_io_merged_stats(struct blkio_group *blkg,
bool direction, bool sync) {}
static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg)
{
}
struct blkio_policy_type *pol, bool direction,
bool sync) { }
static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
static inline void
cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg) {}
cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
static inline void
cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg) {}
cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol) { }
static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
uint64_t bytes, bool direction, bool sync) {}
static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync) {}
struct blkio_policy_type *pol, uint64_t bytes,
bool direction, bool sync) { }
static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol, uint64_t start_time,
uint64_t io_start_time, bool direction, bool sync) { }
static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
{
......
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