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Date: Thu, 27 Aug 2015 18:03:55 +0200
From: Michal Hocko <mhocko@kernel.org>
Subject: Re: [PATCHv3 4/5] mm: make compound_head() robust
Message-ID: <20150827160355.GI27052@dhcp22.suse.cz>
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To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Hugh Dickins <hughd@google.com>, Vlastimil Babka <vbabka@suse.cz>, "Kirill A. Shutemov" <kirill@shutemov.name>, Andrew Morton <akpm@linux-foundation.org>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>, Andrea Arcangeli <aarcange@redhat.com>, Dave Hansen <dave.hansen@intel.com>, Johannes Weiner <hannes@cmpxchg.org>, David Rientjes <rientjes@google.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Lameter <cl@linux.com>

On Thu 27-08-15 17:09:17, Michal Hocko wrote:
[...]
> Btw. Do we need the same think for page::mapping and KSM?

I guess we are safe here because the address for mappings comes from
kmalloc and that aligned properly, right?
-- 
Michal Hocko
SUSE Labs

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