core.c (4aef2ec9022b217f74d0f4c9b84081f07cc223d9) core.c (d08b9f0ca6605e13dcb48f04e55a30545b3c71eb)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * kernel/sched/core.c
4 *
5 * Core kernel scheduler code and related syscalls
6 *
7 * Copyright (C) 1991-2002 Linus Torvalds
8 */
9#include "sched.h"
10
11#include <linux/nospec.h>
12
13#include <linux/kcov.h>
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * kernel/sched/core.c
4 *
5 * Core kernel scheduler code and related syscalls
6 *
7 * Copyright (C) 1991-2002 Linus Torvalds
8 */
9#include "sched.h"
10
11#include <linux/nospec.h>
12
13#include <linux/kcov.h>
14#include <linux/scs.h>
14
15#include <asm/switch_to.h>
16#include <asm/tlb.h>
17
18#include "../workqueue_internal.h"
19#include "../../fs/io-wq.h"
20#include "../smpboot.h"
21

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1227
1228 for_each_clamp_id(clamp_id)
1229 p->uclamp[clamp_id].active = false;
1230
1231 if (likely(!p->sched_reset_on_fork))
1232 return;
1233
1234 for_each_clamp_id(clamp_id) {
15
16#include <asm/switch_to.h>
17#include <asm/tlb.h>
18
19#include "../workqueue_internal.h"
20#include "../../fs/io-wq.h"
21#include "../smpboot.h"
22

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1228
1229 for_each_clamp_id(clamp_id)
1230 p->uclamp[clamp_id].active = false;
1231
1232 if (likely(!p->sched_reset_on_fork))
1233 return;
1234
1235 for_each_clamp_id(clamp_id) {
1235 unsigned int clamp_value = uclamp_none(clamp_id);
1236
1237 /* By default, RT tasks always get 100% boost */
1238 if (unlikely(rt_task(p) && clamp_id == UCLAMP_MIN))
1239 clamp_value = uclamp_none(UCLAMP_MAX);
1240
1241 uclamp_se_set(&p->uclamp_req[clamp_id], clamp_value, false);
1236 uclamp_se_set(&p->uclamp_req[clamp_id],
1237 uclamp_none(clamp_id), false);
1242 }
1243}
1244
1245static void __init init_uclamp(void)
1246{
1247 struct uclamp_se uc_max = {};
1248 enum uclamp_id clamp_id;
1249 int cpu;

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6040
6041 raw_spin_lock_irqsave(&idle->pi_lock, flags);
6042 raw_spin_lock(&rq->lock);
6043
6044 idle->state = TASK_RUNNING;
6045 idle->se.exec_start = sched_clock();
6046 idle->flags |= PF_IDLE;
6047
1238 }
1239}
1240
1241static void __init init_uclamp(void)
1242{
1243 struct uclamp_se uc_max = {};
1244 enum uclamp_id clamp_id;
1245 int cpu;

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6036
6037 raw_spin_lock_irqsave(&idle->pi_lock, flags);
6038 raw_spin_lock(&rq->lock);
6039
6040 idle->state = TASK_RUNNING;
6041 idle->se.exec_start = sched_clock();
6042 idle->flags |= PF_IDLE;
6043
6044 scs_task_reset(idle);
6048 kasan_unpoison_task_stack(idle);
6049
6050#ifdef CONFIG_SMP
6051 /*
6052 * Its possible that init_idle() gets called multiple times on a task,
6053 * in that case do_set_cpus_allowed() will not do the right thing.
6054 *
6055 * And since this is boot we can forgo the serialization.

--- 1923 unchanged lines hidden --- 		6045 kasan_unpoison_task_stack(idle);
6046
6047#ifdef CONFIG_SMP
6048 /*
6049 * Its possible that init_idle() gets called multiple times on a task,
6050 * in that case do_set_cpus_allowed() will not do the right thing.
6051 *
6052 * And since this is boot we can forgo the serialization.

--- 1923 unchanged lines hidden ---