linux-kernel - Re: [patch 7/8] fdmap v2

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Message-ID: <Pine.LNX.4.64.0706091326050.14445@alien.or.mcafeemobile.com>
Date:	Sat, 9 Jun 2007 13:31:56 -0700 (PDT)
From:	Davide Libenzi <davidel@...ilserver.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
cc:	Al Viro <viro@....linux.org.uk>,
	Kyle Moffett <mrmacman_g4@....com>,
	Ulrich Drepper <drepper@...hat.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Theodore Tso <tytso@....edu>,
	Eric Dumazet <dada1@...mosbay.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [patch 7/8] fdmap v2 - implement sys_socket2

On Sat, 9 Jun 2007, Linus Torvalds wrote:

> So I think both the FD_CLOEXEC _and_ the "private fd space" are real 
> issues. I don't agree with the "random fd" approach. I'd much rather have 
> a non-random setup for the nonlinear ones (it just shouldn't be linear).

That is fine for me. So what about the randomness?

A) Don't do it at all

B) Let userspace select it in some way globally

C) Let userspace select it per-fd (this won't be an O(1) anymore though)




- Davide


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