linux-kernel - Re: [PATCH V3] mm:add VM_BUG_ON_PAGE() for page

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Message-ID: <20141208115447.GA29028@node.dhcp.inet.fi>
Date:	Mon, 8 Dec 2014 13:54:47 +0200
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	"Wang, Yalin" <Yalin.Wang@...ymobile.com>
Cc:	'Hillf Danton' <hillf.zj@...baba-inc.com>,
	'linux-kernel' <linux-kernel@...r.kernel.org>,
	"'linux-mm@...ck.org'" <linux-mm@...ck.org>,
	"'linux-arm-kernel@...ts.infradead.org'" 
	<linux-arm-kernel@...ts.infradead.org>,
	'Andrew Morton' <akpm@...ux-foundation.org>
Subject: Re: [PATCH V3] mm:add VM_BUG_ON_PAGE() for page_mapcount()

On Mon, Dec 08, 2014 at 05:59:46PM +0800, Wang, Yalin wrote:
> This patch add VM_BUG_ON_PAGE() for slab page,
> because _mapcount is an union with slab struct in struct page,
> avoid access _mapcount if this page is a slab page.
> Also remove the unneeded bracket.
> 
> Signed-off-by: Yalin Wang <yalin.wang@...ymobile.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
-- 
 Kirill A. Shutemov
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