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Date: Wed, 26 Jul 2017 18:43:19 +0200
From: Andrea Arcangeli <aarcange@redhat.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
        Andrew Morton <akpm@linux-foundation.org>,
        David Rientjes <rientjes@google.com>,
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        Oleg Nesterov <oleg@redhat.com>, Hugh Dickins <hughd@google.com>,
        linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm, oom: allow oom reaper to race with exit_mmap
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On Wed, Jul 26, 2017 at 06:29:12PM +0200, Andrea Arcangeli wrote:
> From 3d9001490ee1a71f39c7bfaf19e96821f9d3ff16 Mon Sep 17 00:00:00 2001
> From: Andrea Arcangeli <aarcange@redhat.com>
> Date: Tue, 25 Jul 2017 20:02:27 +0200
> Subject: [PATCH 1/1] mm: oom: let oom_reap_task and exit_mmap to run
>  concurrently

This needs an incremental one liner...

diff --git a/mm/mmap.c b/mm/mmap.c
index bdab595ce25c..fd16996ee0a8 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -44,6 +44,7 @@
 #include <linux/userfaultfd_k.h>
 #include <linux/moduleparam.h>
 #include <linux/pkeys.h>
+#include <linux/oom.h>
 
 #include <linux/uaccess.h>
 #include <asm/cacheflush.h>