linux-kernel - Re: [PATCH 2/2] mm, oom_reaper: do not mmput synchronously from the oom reaper context

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Message-ID: <20160426145828.GF20813@dhcp22.suse.cz>
Date:	Tue, 26 Apr 2016 16:58:29 +0200
From:	Michal Hocko <mhocko@...nel.org>
To:	kbuild test robot <lkp@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	kbuild-all@...org,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	David Rientjes <rientjes@...gle.com>, linux-mm@...ck.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] mm, oom_reaper: do not mmput synchronously from the
 oom reaper context

On Tue 26-04-16 22:18:22, kbuild test robot wrote:
> >> include/linux/mm_types.h:516:21: error: field 'async_put_work' has incomplete type
>      struct work_struct async_put_work;

My bad. We need to include <linux/workqueue.h> because we rely on the
include only indirectly which happened to work fine for most of my
configs - not so for allnoconfig, though. Please fold this into the
original patch or let me know and I will repost the full patch again.
---
>From 368e90e7640a1eb5f0e621c7ccb08bc7ef2d272b Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@...e.com>
Date: Tue, 26 Apr 2016 16:48:13 +0200
Subject: [PATCH] mm-fix: mm, oom_reaper: do not mmput synchronously from the
 oom reaper context

In file included from include/linux/sched.h:27:0,
	    from include/linux/oom.h:5,
	    from mm/oom_kill.c:20:
>> include/linux/mm_types.h:516:21: error: field 'async_put_work' has incomplete type
	struct work_struct async_put_work;

Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Michal Hocko <mhocko@...e.com>
---
 include/linux/mm_types.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index f4f477244679..ab142ace96f3 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -12,6 +12,7 @@
 #include <linux/cpumask.h>
 #include <linux/uprobes.h>
 #include <linux/page-flags-layout.h>
+#include <linux/workqueue.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
 
-- 
2.8.0.rc3

-- 
Michal Hocko
SUSE Labs