A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

blk-rq-qos: refactor out common elements of blk-wbt

Browse source 
blkcg-qos is going to do essentially what wbt does, only on a cgroup
basis.  Break out the common code that will be shared between blkcg-qos
and wbt into blk-rq-qos.* so they can both utilize the same
infrastructure.

Signed-off-by: Josef Bacik <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Josef Bacik 2018-07-03 09:32:35 -06:00 • committed by Jens Axboe
commit a79050434b
10 changed files with 478 additions and 251 deletions
Download patch file Download diff file Expand all files Collapse all files

22
block/blk-sysfs.c
View file

@ -422,16 +422,16 @@ static ssize_t queue_poll_store(struct request_queue *q, const char *page,
static ssize_t queue_wb_lat_show(struct request_queue *q, char *page)
{
if (!q->rq_wb)
if (!wbt_rq_qos(q))
return -EINVAL;
return sprintf(page, "%llu\n", div_u64(q->rq_wb->min_lat_nsec, 1000));
return sprintf(page, "%llu\n", div_u64(wbt_get_min_lat(q), 1000));
}
static ssize_t queue_wb_lat_store(struct request_queue *q, const char *page,
size_t count)
{
struct rq_wb *rwb;
struct rq_qos *rqos;
ssize_t ret;
s64 val;
@ -441,23 +441,21 @@ static ssize_t queue_wb_lat_store(struct request_queue *q, const char *page,
if (val < -1)
return -EINVAL;
rwb = q->rq_wb;
if (!rwb) {
rqos = wbt_rq_qos(q);
if (!rqos) {
ret = wbt_init(q);
if (ret)
return ret;
}
rwb = q->rq_wb;
if (val == -1)
rwb->min_lat_nsec = wbt_default_latency_nsec(q);
val = wbt_default_latency_nsec(q);
else if (val >= 0)
rwb->min_lat_nsec = val * 1000ULL;
val *= 1000ULL;
if (rwb->enable_state == WBT_STATE_ON_DEFAULT)
rwb->enable_state = WBT_STATE_ON_MANUAL;
wbt_set_min_lat(q, val);
wbt_update_limits(rwb);
wbt_update_limits(q);
return count;
}
@ -964,7 +962,7 @@ void blk_unregister_queue(struct gendisk *disk)
kobject_del(&q->kobj);
blk_trace_remove_sysfs(disk_to_dev(disk));
wbt_exit(q);
rq_qos_exit(q);
mutex_lock(&q->sysfs_lock);
if (q->request_fn || (q->mq_ops && q->elevator))