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Date: Wed, 25 Mar 2015 14:55:23 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: David Rientjes <rientjes@google.com>
Cc: Dave Kleikamp <shaggy@kernel.org>, Christoph Hellwig <hch@lst.de>,
        Sebastian Ott <sebott@linux.vnet.ibm.com>,
        Mikulas Patocka <mpatocka@redhat.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        jfs-discussion@lists.sourceforge.net,
        Andrey Ryabinin <a.ryabinin@samsung.com>
Subject: Re: [patch v2 4/4] mm, mempool: poison elements backed by page
 allocator
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On Tue, 24 Mar 2015 16:10:01 -0700 (PDT) David Rientjes <rientjes@google.com> wrote:

> Elements backed by the slab allocator are poisoned when added to a
> mempool's reserved pool.
> 
> It is also possible to poison elements backed by the page allocator
> because the mempool layer knows the allocation order.
> 
> This patch extends mempool element poisoning to include memory backed by
> the page allocator.
> 
> This is only effective for configs with CONFIG_DEBUG_SLAB or
> CONFIG_SLUB_DEBUG_ON.
> 

Maybe mempools should get KASAN treatment (as well as this)?