Commit 6af9b391 authored by Tejun Heo's avatar Tejun Heo
Browse files

Merge branch 'for-7.0-fixes' into for-7.1

parents 0a0d3b8d 2fcfe595

kernel/sched/ext.c

+5 −4
Original line number Diff line number Diff line
@@ -6867,13 +6867,14 @@ static s32 scx_enable(struct sched_ext_ops *ops, struct bpf_link *link) 
	if (!READ_ONCE(helper)) {

		mutex_lock(&helper_mutex);

		if (!helper) {

			helper = kthread_run_worker(0, "scx_enable_helper");

			if (IS_ERR_OR_NULL(helper)) {

				helper = NULL;

			struct kthread_worker *w =

				kthread_run_worker(0, "scx_enable_helper");

			if (IS_ERR_OR_NULL(w)) {

				mutex_unlock(&helper_mutex);

				return -ENOMEM;

			}

			sched_set_fifo(helper->task);

			sched_set_fifo(w->task);

			WRITE_ONCE(helper, w);

		}

		mutex_unlock(&helper_mutex);

	}