diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2021-01-15 19:08:36 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-01-22 15:09:43 +0100 |
| commit | 640f17c82460e9724fd256f0a1f5d99e7ff0bda4 (patch) | |
| tree | 843671442486fff2c92b7b7df424524a2f4fd96a /kernel/sched/core.c | |
| parent | 5c25b5ff89f004c30b04759dc34ace8585a4085f (diff) | |
workqueue: Restrict affinity change to rescuer
create_worker() will already set the right affinity using
kthread_bind_mask(), this means only the rescuer will need to change
it's affinity.
Howveer, while in cpu-hot-unplug a regular task is not allowed to run
on online&&!active as it would be pushed away quite agressively. We
need KTHREAD_IS_PER_CPU to survive in that environment.
Therefore set the affinity after getting that magic flag.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103506.826629830@infradead.org
Diffstat (limited to 'kernel/sched/core.c')
0 files changed, 0 insertions, 0 deletions