On 6/8/24 6:06 AM, Oleg Nesterov wrote: > kernel_wait4() doesn't sleep and returns -EINTR if there is no > eligible child and signal_pending() is true. > > That is why zap_pid_ns_processes() clears TIF_SIGPENDING but this is not > enough, it should also clear TIF_NOTIFY_SIGNAL to make signal_pending() > return false and avoid a busy-wait loop. Reviewed-by: Jens Axboe <axboe@xxxxxxxxx> -- Jens Axboe
