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Date: Fri, 21 Dec 2012 23:25:29 -0500
From: Rik van Riel <riel@redhat.com>
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To: Michel Lespinasse <walken@google.com>
CC: Andy Lutomirski <luto@amacapital.net>, Ingo Molnar <mingo@kernel.org>,
        Al Viro <viro@zeniv.linux.org.uk>, Hugh Dickins <hughd@google.com>,
        Jorn_Engel <joern@logfs.org>,
        Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/9] mm: make mlockall preserve flags other than VM_LOCKED
 in def_flags
References: <1356050997-2688-1-git-send-email-walken@google.com> <1356050997-2688-2-git-send-email-walken@google.com>
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On 12/20/2012 07:49 PM, Michel Lespinasse wrote:
> On most architectures, def_flags is either 0 or VM_LOCKED depending on
> whether mlockall(MCL_FUTURE) was called. However, this is not an absolute
> rule as kvm support on s390 may set the VM_NOHUGEPAGE flag in def_flags.
> We don't want mlockall to clear that.
>
> Signed-off-by: Michel Lespinasse <walken@google.com>

Reviewed-by: Rik van Riel <riel@redhat.com>