linux-kernel - Re: [PATCH] memcg: include linux/mm.h

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Message-ID: <20151016204825.GB1817@node.shutemov.name>
Date:	Fri, 16 Oct 2015 23:48:25 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Vladimir Davydov <vdavydov@...tuozzo.com>, linux-mm@...ck.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Michal Hocko <mhocko@...e.com>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH] memcg: include linux/mm.h

On Fri, Oct 16, 2015 at 10:03:31PM +0200, Arnd Bergmann wrote:
> A recent change to the memcg code added a call to virt_to_head_page,
> which is declared in linux/mm.h, but this is not necessarily included
> here and will cause compile errors:
> 
> include/linux/memcontrol.h:841:9: error: implicit declaration of function 'virt_to_head_page' [-Werror=implicit-function-declaration]
> 
> This adds an explicit include statement that gets rid of the error.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 1ead4c071978 ("memcg: simplify and inline __mem_cgroup_from_kmem")

http://lkml.kernel.org/g/20151016131726.GA602@node.shutemov.name

-- 
 Kirill A. Shutemov
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