On Tue, Sep 25, 2012 at 02:55:48PM +0200, Paolo Bonzini wrote:
> int event_notifier_init(EventNotifier *e, int active)
> {
> +int fds[2];
> +int ret;
> +
> #ifdef CONFIG_EVENTFD
> -int fd = eventfd(!!active, EFD_NONBLOCK | EFD_CLOEXEC);
> -if (fd < 0)
> -return -errno;
>
This takes the eventfd emulation code from the main loop. When the
EventNotifier is used for the main loop too, we need this compatibility
code.
Without CONFIG_EVENTFD, event_notifier_get_fd is only usable for the
"read" side of the notifier, for example to set a select() handler.
Reviewed-by: A
