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linux510/514-tkg: Port prjc v5.15.r1 fixes over, also for upds

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Fixes https://github.com/Frogging-Family/linux-tkg/issues/361
This commit is contained in:
Tk-Glitch
2021-11-19 15:29:57 +01:00
parent 3c0d50e24a
commit b10490c6b3
4 changed files with 176 additions and 3 deletions
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59
linux-tkg-patches/5.10/0005-v5.10_undead-pds099o.patch
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@@ -8725,3 +8725,62 @@ index b5e3496cf803..0816db0b9c16 100644
};
struct wakeup_test_data *x = data;
diff --git a/kernel/sched/pds.c b/kernel/sched/pds.c
index 9576c57f82da0a1f831b02474db8cd64b945f294..b8d5b1db9fac55ce5ee74033c253832cc36999b6 100644
--- a/kernel/sched/pds.c
+++ b/kernel/sched/pds.c
@@ -2912,10 +2912,7 @@ static inline void __sched_fork(unsigned long clone_flags, struct task_struct *p
*/
int sched_fork(unsigned long __maybe_unused clone_flags, struct task_struct *p)
{
- unsigned long flags;
int cpu = get_cpu();
- struct rq *rq = this_rq();
-
#ifdef CONFIG_PREEMPT_NOTIFIERS
INIT_HLIST_HEAD(&p->preempt_notifiers);
#endif
@@ -2948,6 +2945,20 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
p->sched_reset_on_fork = 0;
}
+#ifdef CONFIG_SCHED_INFO
+ if (unlikely(sched_info_on()))
+ memset(&p->sched_info, 0, sizeof(p->sched_info));
+#endif
+ init_task_preempt_count(p);
+
+ return 0;
+}
+
+void sched_post_fork(struct task_struct *p, struct kernel_clone_args *kargs)
+{
+ unsigned long flags;
+ struct rq *rq;
+
/*
* The child is not yet in the pid-hash so no cgroup attach races,
* and the cgroup is pinned to this child due to cgroup_fork()
@@ -2982,21 +2993,10 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
* We're setting the CPU for the first time, we don't migrate,
* so use __set_task_cpu().
*/
- __set_task_cpu(p, cpu);
+ __set_task_cpu(p, smp_processor_id());
raw_spin_unlock_irqrestore(&p->pi_lock, flags);
-
-#ifdef CONFIG_SCHED_INFO
- if (unlikely(sched_info_on()))
- memset(&p->sched_info, 0, sizeof(p->sched_info));
-#endif
- init_task_preempt_count(p);
-
- put_cpu();
- return 0;
}
-void sched_post_fork(struct task_struct *p) {}
-
#ifdef CONFIG_SCHEDSTATS
DEFINE_STATIC_KEY_FALSE(sched_schedstats);