linux-kernel - Re: Syslets, Threadlets, generic AIO support, v6

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Message-ID: <alpine.LFD.0.98.0705301446070.26602@woody.linux-foundation.org>
Date:	Wed, 30 May 2007 14:48:17 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
cc:	Davide Libenzi <davidel@...ilserver.org>,
	Ingo Molnar <mingo@...e.hu>,
	Ulrich Drepper <drepper@...hat.com>,
	Jeff Garzik <jeff@...zik.org>,
	Zach Brown <zach.brown@...cle.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@....com.au>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	"David S. Miller" <davem@...emloft.net>,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Jens Axboe <jens.axboe@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Syslets, Threadlets, generic AIO support, v6



On Wed, 30 May 2007, Linus Torvalds wrote:
> 
> Sure. I think there are things we can do (like make the non-linear fd's 
> appear somewhere else, and make them close-on-exec by default etc).

Side note: it might not even be a "close-on-exec by default" thing: it 
might well be a *always* close-on-exec.

That COE is pretty horrid to do, we need to scan a bitmap of those things 
on each exec. So it migth be totally sensible to just declare that the 
non-linear fd's would simply always be "local", and never bleed across an 
execve).

			Linus
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