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From: Gerd Hoffmann <kraxel@redhat.com>
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Subject: [Qemu-devel] Re: [PATCH 0/5] chardev, virtio-console: flow control,
	error	handling
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To: Amit Shah <amit.shah@redhat.com>
Cc: qemu list <qemu-devel@nongnu.org>, Juan Quintela <quintela@redhat.com>

> So you mean just return -EAGAIN in case write returns with -EAGAIN?
>
> Yeah, makes sense.

Yes.

Note that for EINTR you want re-enter write() through so callers don't 
have to worry about signals.

cheers,
   Gerd