linux-kernel - Re: [PATCH -mm] add a kmem

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Date:	Fri, 22 Jun 2007 09:22:56 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Cedric Le Goater <clg@...ibm.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Herbert Poetzl <herbert@...hfloor.at>,
	Pavel Emelianov <xemul@...nvz.org>
Subject: Re: [PATCH -mm] add a kmem_cache for nsproxy objects

On Fri, 22 Jun 2007, Cedric Le Goater wrote:

> the macro sets the align parameter to "__alignof__(struct)" by default. 
> is that something we want to do all the time ? if so, why not change 
> kmem_cache_create() directly ?

Its a safety net. If there is some reason that the structure needs a 
larger alignment than ARCH_KMALLOC_MINALIGN then that alignment will be 
applied.
 
> Most of the complexity is in flags. I did a grep and picked what i thought 
> was the most aggressive. The macro would probably be more useful if we could 
> identify by it's name in which context it can be used. 

What context are you thinking about and how would it influence 
the macro?

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