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authorLinus Torvalds <torvalds@linux-foundation.org>2020-05-31 10:43:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-05-31 10:43:17 -0700
commit3d0428232909d9aa9248c3724f04a333f6f53bb3 (patch)
tree6859b96a64b7f2a42372213b54ced102723de70a /kernel
parent19835b1ba6b1f2d3fb5aefffa01ebd626513ff4a (diff)
parent18f855e574d9799a0e7489f8ae6fd8447d0dd74a (diff)
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
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched/fair.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 538ba5d94e99..da3e5b54715b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -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;
/*