diff options
| author |   Muchun Song <songmuchun@bytedance.com> | 2020-04-21 22:41:23 +0800 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2020-04-30 20:14:41 +0200 |
| commit | 17c891ab349138e8d8a59ca2700f42ce8af96f4e (patch) | |
| tree | b662d232acd8ac34bc3ee13906501534f93def64 /kernel/sched | |
| parent | sched/core: Fix illegal RCU from offline CPUs (diff) | |
| download | linux-dev-17c891ab349138e8d8a59ca2700f42ce8af96f4e.tar.xz linux-dev-17c891ab349138e8d8a59ca2700f42ce8af96f4e.zip | |
sched/fair: Use __this_cpu_read() in wake_wide()
The code is executed with preemption(and interrupts) disabled,
so it's safe to use __this_cpu_write().
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200421144123.33580-1-songmuchun@bytedance.com
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/fair.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index cd7fd7e2b579..46b7bd41573f 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5718,7 +5718,7 @@ static int wake_wide(struct task_struct *p) { unsigned int master = current->wakee_flips; unsigned int slave = p->wakee_flips; - int factor = this_cpu_read(sd_llc_size); + int factor = __this_cpu_read(sd_llc_size); if (master < slave) swap(master, slave); |