diff options
Diffstat (limited to 'kernel/bpf/memalloc.c')
| -rw-r--r-- | kernel/bpf/memalloc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/bpf/memalloc.c b/kernel/bpf/memalloc.c index cb60445de98a..c5d822d7cfaa 100644 --- a/kernel/bpf/memalloc.c +++ b/kernel/bpf/memalloc.c @@ -732,12 +732,17 @@ static void notrace *unit_alloc(struct bpf_mem_cache *c) } } local_dec(&c->active); - local_irq_restore(flags); WARN_ON(cnt < 0); if (cnt < c->low_watermark) irq_work_raise(c); + /* Enable IRQ after the enqueue of irq work completes, so irq work + * will run after IRQ is enabled and free_llist may be refilled by + * irq work before other task preempts current task. + */ + local_irq_restore(flags); + return llnode; } |