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Merge remote-tracking branch 'tip/perf/urgent' into perf/core

Browse source 
Merge reason: We are going to queue up a dependent patch:

"perf tools: Move parse event automated tests to separated object"

That depends on:

commit e7c72d8
perf tools: Add 'G' and 'H' modifiers to event parsing

Conflicts:
	tools/perf/builtin-stat.c

Conflicted with the recent 'perf_target' patches when checking the
result of perf_evsel open routines to see if a retry is needed to cope
with older kernels where the exclude guest/host perf_event_attr bits
were not used.

Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2012-05-18 13:13:33 -03:00
commit 16ee6576e2
351 changed files with 3514 additions and 2073 deletions
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22
kernel/sched/core.c
View file

@ -6398,16 +6398,26 @@ static void __sdt_free(const struct cpumask *cpu_map)
struct sd_data *sdd = &tl->data;
for_each_cpu(j, cpu_map) {
struct sched_domain *sd = *per_cpu_ptr(sdd->sd, j);
if (sd && (sd->flags & SD_OVERLAP))
free_sched_groups(sd->groups, 0);
kfree(*per_cpu_ptr(sdd->sd, j));
kfree(*per_cpu_ptr(sdd->sg, j));
kfree(*per_cpu_ptr(sdd->sgp, j));
struct sched_domain *sd;
if (sdd->sd) {
sd = *per_cpu_ptr(sdd->sd, j);
if (sd && (sd->flags & SD_OVERLAP))
free_sched_groups(sd->groups, 0);
kfree(*per_cpu_ptr(sdd->sd, j));
}
if (sdd->sg)
kfree(*per_cpu_ptr(sdd->sg, j));
if (sdd->sgp)
kfree(*per_cpu_ptr(sdd->sgp, j));
}
free_percpu(sdd->sd);
sdd->sd = NULL;
free_percpu(sdd->sg);
sdd->sg = NULL;
free_percpu(sdd->sgp);
sdd->sgp = NULL;
}
}

18
kernel/sched/fair.c
View file

@ -784,7 +784,7 @@ account_entity_enqueue(struct cfs_rq *cfs_rq, struct sched_entity *se)
update_load_add(&rq_of(cfs_rq)->load, se->load.weight);
#ifdef CONFIG_SMP
if (entity_is_task(se))
list_add_tail(&se->group_node, &rq_of(cfs_rq)->cfs_tasks);
list_add(&se->group_node, &rq_of(cfs_rq)->cfs_tasks);
#endif
cfs_rq->nr_running++;
}
@ -3215,6 +3215,8 @@ static int move_one_task(struct lb_env *env)
static unsigned long task_h_load(struct task_struct *p);
static const unsigned int sched_nr_migrate_break = 32;
/*
* move_tasks tries to move up to load_move weighted load from busiest to
* this_rq, as part of a balancing operation within domain "sd".
@ -3242,7 +3244,7 @@ static int move_tasks(struct lb_env *env)
/* take a breather every nr_migrate tasks */
if (env->loop > env->loop_break) {
env->loop_break += sysctl_sched_nr_migrate;
env->loop_break += sched_nr_migrate_break;
env->flags |= LBF_NEED_BREAK;
break;
}
@ -3252,7 +3254,7 @@ static int move_tasks(struct lb_env *env)
load = task_h_load(p);
if (load < 16 && !env->sd->nr_balance_failed)
if (sched_feat(LB_MIN) && load < 16 && !env->sd->nr_balance_failed)
goto next;
if ((load / 2) > env->load_move)
@ -4407,7 +4409,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
.dst_cpu = this_cpu,
.dst_rq = this_rq,
.idle = idle,
.loop_break = sysctl_sched_nr_migrate,
.loop_break = sched_nr_migrate_break,
};
cpumask_copy(cpus, cpu_active_mask);
@ -4445,10 +4447,10 @@ redo:
* correctly treated as an imbalance.
*/
env.flags |= LBF_ALL_PINNED;
env.load_move = imbalance;
env.src_cpu = busiest->cpu;
env.src_rq = busiest;
env.loop_max = busiest->nr_running;
env.load_move = imbalance;
env.src_cpu = busiest->cpu;
env.src_rq = busiest;
env.loop_max = min_t(unsigned long, sysctl_sched_nr_migrate, busiest->nr_running);
more_balance:
local_irq_save(flags);

1
kernel/sched/features.h
View file

@ -68,3 +68,4 @@ SCHED_FEAT(TTWU_QUEUE, true)
SCHED_FEAT(FORCE_SD_OVERLAP, false)
SCHED_FEAT(RT_RUNTIME_SHARE, true)
SCHED_FEAT(LB_MIN, false)