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blk-iocost: s/HWEIGHT_WHOLE/WEIGHT_ONE/g

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We're gonna use HWEIGHT_WHOLE for regular weights too. Let's rename it to
WEIGHT_ONE.

Pure rename.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Tejun Heo 2020-09-01 14:52:38 -04:00 committed by Jens Axboe
parent 7b84b49e38
commit fe20cdb516
1 changed files with 10 additions and 10 deletions
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20
block/blk-iocost.c
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@ -68,7 +68,7 @@
* gets 300/(100+300) or 75% share, and A0 and A1 equally splits the rest,
* 12.5% each. The distribution mechanism only cares about these flattened
* shares. They're called hweights (hierarchical weights) and always add
* upto 1 (HWEIGHT_WHOLE).
* upto 1 (WEIGHT_ONE).
*
* A given cgroup's vtime runs slower in inverse proportion to its hweight.
* For example, with 12.5% weight, A0's time runs 8 times slower (100/12.5)
@ -246,7 +246,7 @@ enum {
MIN_VALID_USAGES = 2,
/* 1/64k is granular enough and can easily be handled w/ u32 */
HWEIGHT_WHOLE = 1 << 16,
WEIGHT_ONE = 1 << 16,
/*
* As vtime is used to calculate the cost of each IO, it needs to
@ -285,8 +285,8 @@ enum {
* donate the surplus.
*/
SURPLUS_SCALE_PCT = 125, /* * 125% */
SURPLUS_SCALE_ABS = HWEIGHT_WHOLE / 50, /* + 2% */
SURPLUS_MIN_ADJ_DELTA = HWEIGHT_WHOLE / 33, /* 3% */
SURPLUS_SCALE_ABS = WEIGHT_ONE / 50, /* + 2% */
SURPLUS_MIN_ADJ_DELTA = WEIGHT_ONE / 33, /* 3% */
/* switch iff the conditions are met for longer than this */
AUTOP_CYCLE_NSEC = 10LLU * NSEC_PER_SEC,
@ -491,7 +491,7 @@ struct ioc_gq {
struct hrtimer waitq_timer;
struct hrtimer delay_timer;
/* usage is recorded as fractions of HWEIGHT_WHOLE */
/* usage is recorded as fractions of WEIGHT_ONE */
int usage_idx;
u32 usages[NR_USAGE_SLOTS];
@ -658,7 +658,7 @@ static struct ioc_cgrp *blkcg_to_iocc(struct blkcg *blkcg)
*/
static u64 abs_cost_to_cost(u64 abs_cost, u32 hw_inuse)
{
return DIV64_U64_ROUND_UP(abs_cost * HWEIGHT_WHOLE, hw_inuse);
return DIV64_U64_ROUND_UP(abs_cost * WEIGHT_ONE, hw_inuse);
}
/*
@ -666,7 +666,7 @@ static u64 abs_cost_to_cost(u64 abs_cost, u32 hw_inuse)
*/
static u64 cost_to_abs_cost(u64 cost, u32 hw_inuse)
{
return DIV64_U64_ROUND_UP(cost * hw_inuse, HWEIGHT_WHOLE);
return DIV64_U64_ROUND_UP(cost * hw_inuse, WEIGHT_ONE);
}
static void iocg_commit_bio(struct ioc_gq *iocg, struct bio *bio, u64 cost)
@ -980,7 +980,7 @@ static void current_hweight(struct ioc_gq *iocg, u32 *hw_activep, u32 *hw_inusep
*/
smp_rmb();
hwa = hwi = HWEIGHT_WHOLE;
hwa = hwi = WEIGHT_ONE;
for (lvl = 0; lvl <= iocg->level - 1; lvl++) {
struct ioc_gq *parent = iocg->ancestors[lvl];
struct ioc_gq *child = iocg->ancestors[lvl + 1];
@ -2088,8 +2088,8 @@ static void ioc_pd_init(struct blkg_policy_data *pd)
atomic64_set(&iocg->done_vtime, now.vnow);
atomic64_set(&iocg->active_period, atomic64_read(&ioc->cur_period));
INIT_LIST_HEAD(&iocg->active_list);
iocg->hweight_active = HWEIGHT_WHOLE;
iocg->hweight_inuse = HWEIGHT_WHOLE;
iocg->hweight_active = WEIGHT_ONE;
iocg->hweight_inuse = WEIGHT_ONE;
init_waitqueue_head(&iocg->waitq);
hrtimer_init(&iocg->waitq_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);