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Message-ID: <20241202174606.4074512-8-vincent.guittot@linaro.org>
Date: Mon, 2 Dec 2024 18:46:02 +0100
From: Vincent Guittot <vincent.guittot@...aro.org>
To: mingo@...hat.com,
peterz@...radead.org,
juri.lelli@...hat.com,
dietmar.eggemann@....com,
rostedt@...dmis.org,
bsegall@...gle.com,
mgorman@...e.de,
vschneid@...hat.com,
linux-kernel@...r.kernel.org
Cc: kprateek.nayak@....com,
pauld@...hat.com,
efault@....de,
luis.machado@....com,
tj@...nel.org,
void@...ifault.com,
Vincent Guittot <vincent.guittot@...aro.org>
Subject: [PATCH 07/11 v3] sched/fair: Rename cfs_rq.idle_h_nr_running into h_nr_idle
Use same naming convention as others starting with h_nr_* and rename
idle_h_nr_running into h_nr_idle.
The "running" is not correct anymore as it includes delayed dequeue tasks
as well.
Signed-off-by: Vincent Guittot <vincent.guittot@...aro.org>
---
kernel/sched/debug.c | 3 +--
kernel/sched/fair.c | 52 ++++++++++++++++++++++----------------------
kernel/sched/sched.h | 2 +-
3 files changed, 28 insertions(+), 29 deletions(-)
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 56be3651605d..e21b66b6ee10 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -848,8 +848,7 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
SEQ_printf(m, " .%-30s: %d\n", "h_nr_queued", cfs_rq->h_nr_queued);
SEQ_printf(m, " .%-30s: %d\n", "idle_nr_running",
cfs_rq->idle_nr_running);
- SEQ_printf(m, " .%-30s: %d\n", "idle_h_nr_running",
- cfs_rq->idle_h_nr_running);
+ SEQ_printf(m, " .%-30s: %d\n", "h_nr_idle", cfs_rq->h_nr_idle);
SEQ_printf(m, " .%-30s: %ld\n", "load", cfs_rq->load.weight);
#ifdef CONFIG_SMP
SEQ_printf(m, " .%-30s: %lu\n", "load_avg",
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8afd1b548e76..7234206b9981 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5933,7 +5933,7 @@ static bool throttle_cfs_rq(struct cfs_rq *cfs_rq)
struct rq *rq = rq_of(cfs_rq);
struct cfs_bandwidth *cfs_b = tg_cfs_bandwidth(cfs_rq->tg);
struct sched_entity *se;
- long queued_delta, runnable_delta, idle_task_delta, dequeue = 1;
+ long queued_delta, runnable_delta, idle_delta, dequeue = 1;
long rq_h_nr_queued = rq->cfs.h_nr_queued;
raw_spin_lock(&cfs_b->lock);
@@ -5966,7 +5966,7 @@ static bool throttle_cfs_rq(struct cfs_rq *cfs_rq)
queued_delta = cfs_rq->h_nr_queued;
runnable_delta = cfs_rq->h_nr_runnable;
- idle_task_delta = cfs_rq->idle_h_nr_running;
+ idle_delta = cfs_rq->h_nr_idle;
for_each_sched_entity(se) {
struct cfs_rq *qcfs_rq = cfs_rq_of(se);
int flags;
@@ -5986,11 +5986,11 @@ static bool throttle_cfs_rq(struct cfs_rq *cfs_rq)
dequeue_entity(qcfs_rq, se, flags);
if (cfs_rq_is_idle(group_cfs_rq(se)))
- idle_task_delta = cfs_rq->h_nr_queued;
+ idle_delta = cfs_rq->h_nr_queued;
qcfs_rq->h_nr_queued -= queued_delta;
qcfs_rq->h_nr_runnable -= runnable_delta;
- qcfs_rq->idle_h_nr_running -= idle_task_delta;
+ qcfs_rq->h_nr_idle -= idle_delta;
if (qcfs_rq->load.weight) {
/* Avoid re-evaluating load for this entity: */
@@ -6009,11 +6009,11 @@ static bool throttle_cfs_rq(struct cfs_rq *cfs_rq)
se_update_runnable(se);
if (cfs_rq_is_idle(group_cfs_rq(se)))
- idle_task_delta = cfs_rq->h_nr_queued;
+ idle_delta = cfs_rq->h_nr_queued;
qcfs_rq->h_nr_queued -= queued_delta;
qcfs_rq->h_nr_runnable -= runnable_delta;
- qcfs_rq->idle_h_nr_running -= idle_task_delta;
+ qcfs_rq->h_nr_idle -= idle_delta;
}
/* At this point se is NULL and we are at root level*/
@@ -6039,7 +6039,7 @@ void unthrottle_cfs_rq(struct cfs_rq *cfs_rq)
struct rq *rq = rq_of(cfs_rq);
struct cfs_bandwidth *cfs_b = tg_cfs_bandwidth(cfs_rq->tg);
struct sched_entity *se;
- long queued_delta, runnable_delta, idle_task_delta;
+ long queued_delta, runnable_delta, idle_delta;
long rq_h_nr_queued = rq->cfs.h_nr_queued;
se = cfs_rq->tg->se[cpu_of(rq)];
@@ -6075,7 +6075,7 @@ void unthrottle_cfs_rq(struct cfs_rq *cfs_rq)
queued_delta = cfs_rq->h_nr_queued;
runnable_delta = cfs_rq->h_nr_runnable;
- idle_task_delta = cfs_rq->idle_h_nr_running;
+ idle_delta = cfs_rq->h_nr_idle;
for_each_sched_entity(se) {
struct cfs_rq *qcfs_rq = cfs_rq_of(se);
@@ -6089,11 +6089,11 @@ void unthrottle_cfs_rq(struct cfs_rq *cfs_rq)
enqueue_entity(qcfs_rq, se, ENQUEUE_WAKEUP);
if (cfs_rq_is_idle(group_cfs_rq(se)))
- idle_task_delta = cfs_rq->h_nr_queued;
+ idle_delta = cfs_rq->h_nr_queued;
qcfs_rq->h_nr_queued += queued_delta;
qcfs_rq->h_nr_runnable += runnable_delta;
- qcfs_rq->idle_h_nr_running += idle_task_delta;
+ qcfs_rq->h_nr_idle += idle_delta;
/* end evaluation on encountering a throttled cfs_rq */
if (cfs_rq_throttled(qcfs_rq))
@@ -6107,11 +6107,11 @@ void unthrottle_cfs_rq(struct cfs_rq *cfs_rq)
se_update_runnable(se);
if (cfs_rq_is_idle(group_cfs_rq(se)))
- idle_task_delta = cfs_rq->h_nr_queued;
+ idle_delta = cfs_rq->h_nr_queued;
qcfs_rq->h_nr_queued += queued_delta;
qcfs_rq->h_nr_runnable += runnable_delta;
- qcfs_rq->idle_h_nr_running += idle_task_delta;
+ qcfs_rq->h_nr_idle += idle_delta;
/* end evaluation on encountering a throttled cfs_rq */
if (cfs_rq_throttled(qcfs_rq))
@@ -6921,7 +6921,7 @@ static inline void check_update_overutilized_status(struct rq *rq) { }
/* Runqueue only has SCHED_IDLE tasks enqueued */
static int sched_idle_rq(struct rq *rq)
{
- return unlikely(rq->nr_running == rq->cfs.idle_h_nr_running &&
+ return unlikely(rq->nr_running == rq->cfs.h_nr_idle &&
rq->nr_running);
}
@@ -6973,7 +6973,7 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
{
struct cfs_rq *cfs_rq;
struct sched_entity *se = &p->se;
- int idle_h_nr_running = task_has_idle_policy(p);
+ int h_nr_idle = task_has_idle_policy(p);
int h_nr_runnable = 1;
int task_new = !(flags & ENQUEUE_WAKEUP);
int rq_h_nr_queued = rq->cfs.h_nr_queued;
@@ -7026,10 +7026,10 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
cfs_rq->h_nr_runnable += h_nr_runnable;
cfs_rq->h_nr_queued++;
- cfs_rq->idle_h_nr_running += idle_h_nr_running;
+ cfs_rq->h_nr_idle += h_nr_idle;
if (cfs_rq_is_idle(cfs_rq))
- idle_h_nr_running = 1;
+ h_nr_idle = 1;
/* end evaluation on encountering a throttled cfs_rq */
if (cfs_rq_throttled(cfs_rq))
@@ -7050,10 +7050,10 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
cfs_rq->h_nr_runnable += h_nr_runnable;
cfs_rq->h_nr_queued++;
- cfs_rq->idle_h_nr_running += idle_h_nr_running;
+ cfs_rq->h_nr_idle += h_nr_idle;
if (cfs_rq_is_idle(cfs_rq))
- idle_h_nr_running = 1;
+ h_nr_idle = 1;
/* end evaluation on encountering a throttled cfs_rq */
if (cfs_rq_throttled(cfs_rq))
@@ -7111,7 +7111,7 @@ static int dequeue_entities(struct rq *rq, struct sched_entity *se, int flags)
bool task_sleep = flags & DEQUEUE_SLEEP;
bool task_delayed = flags & DEQUEUE_DELAYED;
struct task_struct *p = NULL;
- int idle_h_nr_running = 0;
+ int h_nr_idle = 0;
int h_nr_queued = 0;
int h_nr_runnable = 0;
struct cfs_rq *cfs_rq;
@@ -7120,7 +7120,7 @@ static int dequeue_entities(struct rq *rq, struct sched_entity *se, int flags)
if (entity_is_task(se)) {
p = task_of(se);
h_nr_queued = 1;
- idle_h_nr_running = task_has_idle_policy(p);
+ h_nr_idle = task_has_idle_policy(p);
if (task_sleep || task_delayed || !se->sched_delayed)
h_nr_runnable = 1;
} else {
@@ -7140,10 +7140,10 @@ static int dequeue_entities(struct rq *rq, struct sched_entity *se, int flags)
cfs_rq->h_nr_runnable -= h_nr_runnable;
cfs_rq->h_nr_queued -= h_nr_queued;
- cfs_rq->idle_h_nr_running -= idle_h_nr_running;
+ cfs_rq->h_nr_idle -= h_nr_idle;
if (cfs_rq_is_idle(cfs_rq))
- idle_h_nr_running = h_nr_queued;
+ h_nr_idle = h_nr_queued;
/* end evaluation on encountering a throttled cfs_rq */
if (cfs_rq_throttled(cfs_rq))
@@ -7179,10 +7179,10 @@ static int dequeue_entities(struct rq *rq, struct sched_entity *se, int flags)
cfs_rq->h_nr_runnable -= h_nr_runnable;
cfs_rq->h_nr_queued -= h_nr_queued;
- cfs_rq->idle_h_nr_running -= idle_h_nr_running;
+ cfs_rq->h_nr_idle -= h_nr_idle;
if (cfs_rq_is_idle(cfs_rq))
- idle_h_nr_running = h_nr_queued;
+ h_nr_idle = h_nr_queued;
/* end evaluation on encountering a throttled cfs_rq */
if (cfs_rq_throttled(cfs_rq))
@@ -13543,7 +13543,7 @@ int sched_group_set_idle(struct task_group *tg, long idle)
}
idle_task_delta = grp_cfs_rq->h_nr_queued -
- grp_cfs_rq->idle_h_nr_running;
+ grp_cfs_rq->h_nr_idle;
if (!cfs_rq_is_idle(grp_cfs_rq))
idle_task_delta *= -1;
@@ -13553,7 +13553,7 @@ int sched_group_set_idle(struct task_group *tg, long idle)
if (!se->on_rq)
break;
- cfs_rq->idle_h_nr_running += idle_task_delta;
+ cfs_rq->h_nr_idle += idle_task_delta;
/* Already accounted at parent level and above. */
if (cfs_rq_is_idle(cfs_rq))
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index d3ce5e99b025..afe5cb93db89 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -649,7 +649,7 @@ struct cfs_rq {
unsigned int h_nr_queued; /* SCHED_{NORMAL,BATCH,IDLE} */
unsigned int h_nr_runnable; /* SCHED_{NORMAL,BATCH,IDLE} */
unsigned int idle_nr_running; /* SCHED_IDLE */
- unsigned int idle_h_nr_running; /* SCHED_IDLE */
+ unsigned int h_nr_idle; /* SCHED_IDLE */
s64 avg_vruntime;
u64 avg_load;
--
2.43.0
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