Re: [PATCH 0/8] Suspend block api (version 8)

Zygo Blaxell
2010-05-27T19:32:43Z

On Thu, May 27, 2010 at 07:56:58PM +0100, Matthew Garrett wrote:
> Even if it's using poll, it could block purely on the display if X turns
> the screen off between poll() waking and the write being made.

That's what fcntl(fd, F_SETFL, O_NONBLOCK) is for.