netdev - Re: [PATCH] net: unix: non blocking recvmsg() should not return -EINTR

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Message-ID: <87ha6k7jt7.fsf@sable.mobileactivedefense.com>
Date:	Wed, 26 Mar 2014 21:04:52 +0000
From:	Rainer Weikusat <rweikusat@...ileactivedefense.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Laight <David.Laight@...LAB.COM>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] net: unix: non blocking recvmsg() should not return -EINTR

Rainer Weikusat <rw@...le> writes:

[...]

> The underlying problem would seem to be that a O_NONBLOCK call might
> actually block forever in case a blocking receiver sits on the lock and
> no data is ever received.

... except that this probably cannot happen because O_NONBLOCK is a file
status flag and not a file descriptor flag.

NB: I've neither tested nor checked this.
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