linux-kernel - Re: sendfile and EAGAIN

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Date:	Sat, 2 Mar 2013 22:16:12 -0500
From:	Ulrich Drepper <drepper@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: sendfile and EAGAIN

On Sat, Mar 2, 2013 at 10:09 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
>
> Using non blocking IO means the sender (and the receiver) must be able
> to perform several operations, as long as the whole transfert is not
> finished.

Certainly, and this is implemented.  But the receiver never gets the
rest of the data while the sender (most of the time) gets notified
that everything is sent.

I don't have a reduced test case yet.  Hopefully I'll get to it
sometime soon.  For now I worked around it by not using sendfile.
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