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

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Date:	Wed, 30 May 2007 21:10:24 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Mark Lord <lkml@....ca>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jeff Garzik <jeff@...zik.org>,
	Zach Brown <zach.brown@...cle.com>,
	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>,
	Ulrich Drepper <drepper@...hat.com>,
	Evgeniy Polyakov <johnpol@....mipt.ru>,
	"David S. Miller" <davem@...emloft.net>,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Syslets, Threadlets, generic AIO support, v6

On Wed, May 30 2007, Mark Lord wrote:
> Ingo Molnar wrote:
> >
> > - sendfile(). This API mainly failed on #2. It partly failed on #1 too.
> >   (couldnt be used in certain types of scenarios so was unintuitive.)
> >   splice() fixes this almost completely.
> >
> > - KAIO. It fails on #2 and #3.
> 
> I wonder how useful it would be to reimplement sendfile()
> using splice(), either in glibc or inside the kernel itself?
> 
> sendfile() does get used a fair bit, but I really doubt that anyone
> outside of a handful of people on this list actually use splice().

It's indeed the plan, I even have git branch for it. Just never took the
time to actually finish it.

http://git.kernel.dk/?p=linux-2.6-block.git;a=shortlog;h=splice-sendfile

-- 
Jens Axboe

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