Re: [PATCH v2 13/15] slab: use struct page for slab management

From: Christoph Lameter
Date: Sun Oct 20 2013 - 14:05:27 EST


On Sat, 19 Oct 2013, JoonSoo Kim wrote:

> I search the history of struct page and find that the SLUB use mapping field
> in past (2007 year). At that time, you inserted VM_BUG_ON(PageSlab(page))
> ('b5fab14') into page_mapping() function to find remaining use. Recently,
> I never hear that this is triggered and 6 years have passed since inserting
> VM_BUG_ON(), so I guess there is no problem to use it.
> If this argument is reasonable, please give me an ACK :)
>
> Thanks.

Acked-by: Christoph Lameter <cl@xxxxxxxxx>

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