linux-kernel - Re: [PATCH] Do not pass the SLAB flags as GFP in slob kmem_cache

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Message-ID: <Pine.LNX.4.64.0812101411020.15262@quilx.com>
Date:	Wed, 10 Dec 2008 14:11:23 -0600 (CST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Cyrill Gorcunov <gorcunov@...il.com>
cc:	Catalin Marinas <catalin.marinas@....com>,
	linux-kernel@...r.kernel.org, Matt Mackall <mpm@...enic.com>,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH] Do not pass the SLAB flags as GFP in slob kmem_cache_create

On Wed, 10 Dec 2008, Cyrill Gorcunov wrote:

> this would make the following line in slob_alloc
>
> 	...
> 	if (unlikely((gfp & __GFP_ZERO) && b))
> 		memset(b, 0, size);
>  	...
>
> useless. Not sure if it will be good :)

No. GFP_ZERO is set when kmalloc etc is called. Its not set on
kmem_cache_create.

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