Date: Sat, 11 Jan 2014 17:11:25 +0100
From: Oleg Nesterov <oleg@redhat.com>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Alex Thorlton <athorlton@sgi.com>, linux-mm@kvack.org,
        Ingo Molnar <mingo@redhat.com>, Peter Zijlstra <peterz@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Rik van Riel <riel@redhat.com>,
        Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Andy Lutomirski <luto@amacapital.net>,
        Al Viro <viro@zeniv.linux.org.uk>, Kees Cook <keescook@chromium.org>,
        Andrea Arcangeli <aarcange@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] mm: thp: Add per-mm_struct flag to control THP
Message-ID: <20140111161125.GA17160@redhat.com>
References: <1389383718-46031-1-git-send-email-athorlton@sgi.com> <20140110202310.GB1421@node.dhcp.inet.fi>
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On 01/10, Kirill A. Shutemov wrote:
>
> I prefer to fix THP instead of
> adding new knob to disable it.

I agree. But if we have the per-vma MADV/VM_ flags, it looks
natural to also have the per-mm know which affects all vmas.

Besides this allows to control the thp behaviour after exec.

Oleg.

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