diff options
| author | Alexey Dobriyan <adobriyan@gmail.com> | 2021-04-22 23:02:28 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-05-12 22:34:17 +0300 |
| commit | e6fe3f422be128b7d65de607f6ae67bedc55f0ca (patch) | |
| tree | 4beec92733fb129c6def09fcf280453e85f9fed3 /kernel/sched | |
| parent | 8fc2858e572ce761bffcade81a42ac72005e76f9 (diff) | |
| download | linux-e6fe3f422be128b7d65de607f6ae67bedc55f0ca.tar.xz | |
sched: Make multiple runqueue task counters 32-bit
Make:
struct dl_rq::dl_nr_migratory
struct dl_rq::dl_nr_running
struct rt_rq::rt_nr_boosted
struct rt_rq::rt_nr_migratory
struct rt_rq::rt_nr_total
struct rq::nr_uninterruptible
32-bit.
If total number of tasks can't exceed 2**32 (and less due to futex pid
limits), then per-runqueue counters can't as well.
This patchset has been sponsored by REX Prefix Eradication Society.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210422200228.1423391-4-adobriyan@gmail.com
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/loadavg.c | 2 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 12 |
2 files changed, 7 insertions, 7 deletions
diff --git a/kernel/sched/loadavg.c b/kernel/sched/loadavg.c index 1c79896f1bc0..954b229868d9 100644 --- a/kernel/sched/loadavg.c +++ b/kernel/sched/loadavg.c @@ -81,7 +81,7 @@ long calc_load_fold_active(struct rq *this_rq, long adjust) long nr_active, delta = 0; nr_active = this_rq->nr_running - adjust; - nr_active += (long)this_rq->nr_uninterruptible; + nr_active += (int)this_rq->nr_uninterruptible; if (nr_active != this_rq->calc_load_active) { delta = nr_active - this_rq->calc_load_active; diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 904c52b560d1..8f0194cee0ba 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -636,8 +636,8 @@ struct rt_rq { } highest_prio; #endif #ifdef CONFIG_SMP - unsigned long rt_nr_migratory; - unsigned long rt_nr_total; + unsigned int rt_nr_migratory; + unsigned int rt_nr_total; int overloaded; struct plist_head pushable_tasks; @@ -651,7 +651,7 @@ struct rt_rq { raw_spinlock_t rt_runtime_lock; #ifdef CONFIG_RT_GROUP_SCHED - unsigned long rt_nr_boosted; + unsigned int rt_nr_boosted; struct rq *rq; struct task_group *tg; @@ -668,7 +668,7 @@ struct dl_rq { /* runqueue is an rbtree, ordered by deadline */ struct rb_root_cached root; - unsigned long dl_nr_running; + unsigned int dl_nr_running; #ifdef CONFIG_SMP /* @@ -682,7 +682,7 @@ struct dl_rq { u64 next; } earliest_dl; - unsigned long dl_nr_migratory; + unsigned int dl_nr_migratory; int overloaded; /* @@ -960,7 +960,7 @@ struct rq { * one CPU and if it got migrated afterwards it may decrease * it on another CPU. Always updated under the runqueue lock: */ - unsigned long nr_uninterruptible; + unsigned int nr_uninterruptible; struct task_struct __rcu *curr; struct task_struct *idle; |