Commit 3d042823 authored May 31, 2020 by Linus Torvalds

Merge tag 'sched-urgent-2020-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fix from Thomas Gleixner:
 "A single scheduler fix preventing a crash in NUMA balancing.

  The current->mm check is not reliable as the mm might be temporary due
  to use_mm() in a kthread. Check for PF_KTHREAD explictly"

* tag 'sched-urgent-2020-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Don't NUMA balance for kthreads

parents 19835b1b 18f855e5

kernel/sched/fair.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2908,7 +2908,7 @@ static void task_tick_numa(struct rq rq, struct task_struct curr)
		/*
		* We don't care about NUMA placement if we don't have memory.
		*/
		if (!curr->mm \|\| (curr->flags & PF_EXITING) \|\| work->next != work)
		if ((curr->flags & (PF_EXITING \| PF_KTHREAD)) \|\| work->next != work)
		return;

		/*

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