From: Andrew Morton <akpm@linux-foundation.org>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] thp: fix MADV_DONTNEED vs clear soft dirty race
Date: Fri, 3 Mar 2017 14:29:54 -0800 [thread overview]
Message-ID: <20170303142954.f01bc26179d6e28a2c18da5f@linux-foundation.org> (raw)
In-Reply-To: <20170302151034.27829-5-kirill.shutemov@linux.intel.com>
On Thu, 2 Mar 2017 18:10:34 +0300 "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> wrote:
> Yet another instance of the same race.
>
> Fix is identical to change_huge_pmd().
Nit: someone who is reading this changelog a year from now will be
quite confused - how do they work out what the race was?
I'll add
: See "thp: fix MADV_DONTNEED vs. numa balancing race" for more details.
to the changelogs to help them a bit.
Also, it wasn't a great idea to start this series with a "Restructure
code in preparation for a fix". If people later start hitting this
race, the fixes will be difficult to backport. I'm OK with taking that
risk, but please do bear this in mind in the future.
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prev parent reply other threads:[~2017-03-03 22:29 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-02 15:10 [PATCH 0/4] thp: fix few MADV_DONTNEED races Kirill A. Shutemov
2017-03-02 15:10 ` [PATCH 1/4] thp: reduce indentation level in change_huge_pmd() Kirill A. Shutemov
2017-04-12 11:37 ` Vlastimil Babka
2017-03-02 15:10 ` [PATCH 2/4] thp: fix MADV_DONTNEED vs. numa balancing race Kirill A. Shutemov
2017-03-03 17:17 ` Dave Hansen
2017-04-12 13:33 ` Vlastimil Babka
2017-05-16 14:54 ` Vlastimil Babka
2017-05-16 20:29 ` Andrea Arcangeli
2017-05-23 12:42 ` Vlastimil Babka
2017-06-09 8:21 ` Vlastimil Babka
2017-03-02 15:10 ` [PATCH 3/4] thp: fix MADV_DONTNEED vs. MADV_FREE race Kirill A. Shutemov
2017-03-03 5:35 ` Hillf Danton
2017-03-03 10:26 ` Kirill A. Shutemov
2017-03-06 1:44 ` Minchan Kim
2017-03-07 14:04 ` Kirill A. Shutemov
2017-03-08 6:17 ` Minchan Kim
2017-03-06 2:49 ` Aneesh Kumar K.V
2017-03-07 13:52 ` Kirill A. Shutemov
2017-03-02 15:10 ` [PATCH 4/4] thp: fix MADV_DONTNEED vs clear soft dirty race Kirill A. Shutemov
2017-03-03 22:29 ` Andrew Morton [this message]
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