linux-kernel - Re: [RFC/PATCH v2 04/10] mm: slub: introduce virt_to

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Message-ID: <alpine.DEB.2.11.1409101116160.1654@gentwo.org>
Date:	Wed, 10 Sep 2014 11:16:37 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Andrey Ryabinin <a.ryabinin@...sung.com>
cc:	linux-kernel@...r.kernel.org, Dmitry Vyukov <dvyukov@...gle.com>,
	Konstantin Serebryany <kcc@...gle.com>,
	Dmitry Chernenkov <dmitryc@...gle.com>,
	Andrey Konovalov <adech.fo@...il.com>,
	Yuri Gribov <tetra2005@...il.com>,
	Konstantin Khlebnikov <koct9i@...il.com>,
	Sasha Levin <sasha.levin@...cle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dave Hansen <dave.hansen@...el.com>,
	Andi Kleen <andi@...stfloor.org>,
	Vegard Nossum <vegard.nossum@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	linux-mm@...ck.org, Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>
Subject: Re: [RFC/PATCH v2 04/10] mm: slub: introduce virt_to_obj function.

On Wed, 10 Sep 2014, Andrey Ryabinin wrote:

> virt_to_obj takes kmem_cache address, address of slab page,
> address x pointing somewhere inside slab object,
> and returns address of the begging of object.

This function is SLUB specific. Does it really need to be in slab.h?
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