linux-kernel - Re: [PATCH] slub: Fix calculation of cpu slabs

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Message-ID: <0000014109b29246-61170b4a-7ab7-41f0-a887-a1cd62603196-000000@email.amazonses.com>
Date:	Tue, 10 Sep 2013 21:06:40 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Li Zefan <lizefan@...wei.com>
cc:	Pekka Enberg <penberg@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [PATCH] slub: Fix calculation of cpu slabs

On Tue, 10 Sep 2013, Li Zefan wrote:

> We should use page->pages instead of page->pobjects when calculating
> the number of cpu partial slabs. This also fixes the mapping of slabs
> and nodes.

True.

> As there's no variable storing the number of total/active objects in
> cpu partial slabs, and we don't have user interfaces requiring those
> statistics, I just add WARN_ON for those cases.


Well that is not strictly required but it does not hurt either.

Acked-by: Christoph Lameter <cl@...ux.com>
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