diff options
Diffstat (limited to 'kernel/bpf/cpumap.c')
| -rw-r--r-- | kernel/bpf/cpumap.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/kernel/bpf/cpumap.c b/kernel/bpf/cpumap.c index b4358d84ddf1..86e29cbf7827 100644 --- a/kernel/bpf/cpumap.c +++ b/kernel/bpf/cpumap.c @@ -288,13 +288,17 @@ static int cpu_map_kthread_run(void *data) /* Release CPU reschedule checks */ if (__ptr_ring_empty(rcpu->queue)) { - __set_current_state(TASK_INTERRUPTIBLE); - schedule(); - sched = 1; + set_current_state(TASK_INTERRUPTIBLE); + /* Recheck to avoid lost wake-up */ + if (__ptr_ring_empty(rcpu->queue)) { + schedule(); + sched = 1; + } else { + __set_current_state(TASK_RUNNING); + } } else { sched = cond_resched(); } - __set_current_state(TASK_RUNNING); /* Process packets in rcpu->queue */ local_bh_disable(); |