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| author | Chengming Zhou <zhouchengming@bytedance.com> | 2022-09-26 11:19:31 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-10-30 12:12:15 +0300 |
| commit | 52b33d87b9197c51e8ffdc61873739d90dd0a16f (patch) | |
| tree | 392b655b87d75cce109258c3adc5f8157dea366b /include/linux/sched.h | |
| parent | 710ffe671e014d5ccbcff225130a178b088ef090 (diff) | |
| download | linux-52b33d87b9197c51e8ffdc61873739d90dd0a16f.tar.xz | |
sched/psi: Use task->psi_flags to clear in CPU migration
The commit d583d360a620 ("psi: Fix psi state corruption when schedule()
races with cgroup move") fixed a race problem by making cgroup_move_task()
use task->psi_flags instead of looking at the scheduler state.
We can extend task->psi_flags usage to CPU migration, which should be
a minor optimization for performance and code simplicity.
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Link: https://lore.kernel.org/r/20220926081931.45420-1-zhouchengming@bytedance.com
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index ffb6eb55cd13..23de7fe86cc4 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -888,9 +888,6 @@ struct task_struct { unsigned sched_reset_on_fork:1; unsigned sched_contributes_to_load:1; unsigned sched_migrated:1; -#ifdef CONFIG_PSI - unsigned sched_psi_wake_requeue:1; -#endif /* Force alignment to the next boundary: */ unsigned :0; |