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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Hugh Dickins <hughd@google.com>, Dave Hansen <dave.hansen@intel.com>,
        Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
        Vlastimil Babka <vbabka@suse.cz>, Christoph Lameter <cl@gentwo.org>,
        Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
        Steve Capper <steve.capper@linaro.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
        Johannes Weiner <hannes@cmpxchg.org>, Michal Hocko <mhocko@suse.cz>,
        Jerome Marchand <jmarchan@redhat.com>,
        Sasha Levin <sasha.levin@oracle.com>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
In-Reply-To: <1436550130-112636-27-git-send-email-kirill.shutemov@linux.intel.com>
References: <1436550130-112636-1-git-send-email-kirill.shutemov@linux.intel.com>
 <1436550130-112636-27-git-send-email-kirill.shutemov@linux.intel.com>
Subject: RE: [PATCH 26/36] mm: rework mapcount accounting to enable 4k mapping
 of THPs
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Message-Id: <20150712191350.7E8D190@black.fi.intel.com>
Date: Sun, 12 Jul 2015 22:13:50 +0300 (EEST)
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Kirill A. Shutemov wrote:
>  TESTPAGEFLAG_FALSE(TransHuge)
>  TESTPAGEFLAG_FALSE(TransCompound)
>  TESTPAGEFLAG_FALSE(TransTail)
> +TESTPAGEFLAG_FALSE(DoubleMap)
> +	TESTSETFLAG_FALSE(DoubleMap)
> +	CLEARPAGEFLAG_NOOP(DoubleMap)
>  #endif
>  
>  /*

Fixlet for !THP:


diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 757a4b162242..eec24e6391d3 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -633,7 +633,7 @@ TESTPAGEFLAG_FALSE(TransCompound)
 TESTPAGEFLAG_FALSE(TransTail)
 TESTPAGEFLAG_FALSE(DoubleMap)
 	TESTSETFLAG_FALSE(DoubleMap)
-	CLEARPAGEFLAG_NOOP(DoubleMap)
+	TESTCLEARFLAG_FALSE(DoubleMap)
 #endif
 
 /*