Date: Sun, 10 Jun 2007 11:19:44 -0700 (PDT)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Eric Dumazet <dada1@cosmosbay.com>
cc: Al Viro <viro@ftp.linux.org.uk>, Kyle Moffett <mrmacman_g4@mac.com>,
       Ulrich Drepper <drepper@redhat.com>,
       Davide Libenzi <davidel@xmailserver.org>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>, Theodore Tso <tytso@mit.edu>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Andrew Morton <akpm@linux-foundation.org>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [patch 7/8] fdmap v2 - implement sys_socket2
In-Reply-To: <466BC0E3.4050600@cosmosbay.com>
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On Sun, 10 Jun 2007, Eric Dumazet wrote:

> Linus Torvalds a ?crit :
> > 
> > 	close(0);
> > 	close(1);
> > 	close(2);
> > 	.. generate filenames, whatever ..
> > 	if (open(..) < 0 || open(..) < 0 || open(..) < 0)
> > 		die("Couldn't redirect stdin/stdout/stderr");
> > 
> > and there's absolutely nothing wrong with this kind of setup, even if you
> > could obviously have done it other ways too (ie by using "dup2()" instead of
> > "close + open"),
> 
> This kind of setup was OK 25 years ago, before multithreading era.
> You cannot reasonably expect it to work in a multithreaded program.

Who said _anything_ about threading?

The above is a totally non-threaded app. 99% of all applications are like 
that.

Threading is for the 1%. But 99% is what we need to make sure works.

		Linus
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