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Merge tag 'v4.9.251' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into odroidg12-4.9.y

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This is the 4.9.251 stable release

Change-Id: I46d3e088d6b63324528986a8ff1d8e026fea5362
This commit is contained in:
Mauro (mdrjr) Ribeiro
2021-07-30 20:15:10 -03:00
parent 734c1c0c82 10bd1f305f
commit dbd2fa7678
44 changed files with 250 additions and 118 deletions
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13
kernel/workqueue.c
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@@ -3467,17 +3467,24 @@ static void pwq_adjust_max_active(struct pool_workqueue *pwq)
* is updated and visible.
*/
if (!freezable || !workqueue_freezing) {
bool kick = false;
pwq->max_active = wq->saved_max_active;
while (!list_empty(&pwq->delayed_works) &&
pwq->nr_active < pwq->max_active)
pwq->nr_active < pwq->max_active) {
pwq_activate_first_delayed(pwq);
kick = true;
}
/*
* Need to kick a worker after thawed or an unbound wq's
* max_active is bumped. It's a slow path. Do it always.
* max_active is bumped. In realtime scenarios, always kicking a
* worker will cause interference on the isolated cpu cores, so
* let's kick iff work items were activated.
*/
wake_up_worker(pwq->pool);
if (kick)
wake_up_worker(pwq->pool);
} else {
pwq->max_active = 0;
}