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ANDROID: Export kthread_set_per_cpu

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kthread_create_on_cpu no longer marks the created thread as a per cpu
thread, so the affinity might get lost on suspend or other hotplug
events.

Export kthread_set_per_cpu so a module that needs a kthread to stay on a
specific cpu can accomplish that.

Bug: 274202992
Change-Id: Iaafc12f93f341f9e0586cb051b7f1c941f140866
Signed-off-by: Arve Hjønnevåg <arve@android.com>
(cherry picked from commit 4fdc7e4658)
This commit is contained in:
Arve Hjønnevåg
2023-03-22 12:32:51 -07:00
committed by Todd Kjos
parent 81c922621d
commit e356cae969
1 changed files with 1 additions and 0 deletions
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kernel/kthread.c
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@@ -601,6 +601,7 @@ void kthread_set_per_cpu(struct task_struct *k, int cpu)
kthread->cpu = cpu; kthread->cpu = cpu;
set_bit(KTHREAD_IS_PER_CPU, &kthread->flags); set_bit(KTHREAD_IS_PER_CPU, &kthread->flags);
} }
EXPORT_SYMBOL_GPL(kthread_set_per_cpu);
bool kthread_is_per_cpu(struct task_struct *p) bool kthread_is_per_cpu(struct task_struct *p)
{ {