linux-kernel - Re: block: make blktrace use per-cpu buffers for message notes

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Message-ID: <20080529072317.GM25504@kernel.dk>
Date:	Thu, 29 May 2008 09:23:17 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: block: make blktrace use per-cpu buffers for message notes

On Thu, May 29 2008, Andrew Morton wrote:
> On Thu, 29 May 2008 09:09:15 +0200 Jens Axboe <jens.axboe@...cle.com> wrote:
> 
> > So I dug back into the old archives, and the patch was actually done
> > by me back in feb 2006. Not sure I particularly like it or if it
> > even works in this forward ported version, but it should get the
> > point across. blktrace is the sole user of relay_reserve(), so I
> > think it would be OK to change the interface.
> > 
> > This is clearly NOT 2.6.26 material though, but it's food for
> > thought (I hope).
> 
> hm, it's not pretty, is it.  I think I prefer the existing code unless
> there are other users of this.

It is not pretty, it's pretty much a hack :-)

So lets just keep the current code. It's an extra copy, but at
least it's nice'n clean.

-- 
Jens Axboe

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