From 632c0a1affd861f81abdd136c886418571e19a51 Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@virtuozzo.com>
Date: Tue, 26 Jul 2016 15:24:18 -0700
Subject: mm: clean up non-standard page->_mapcount users

 - Add a proper comment to page->_mapcount.

 - Introduce a macro for generating helper functions.

 - Place all special page->_mapcount values next to each other so that
   readers can see all possible values and so we don't get duplicates.

Link: http://lkml.kernel.org/r/502f49000e0b63e6c62e338fac6b420bf34fb526.1464079537.git.vdavydov@virtuozzo.com
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/tags.sh | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'scripts/tags.sh')

diff --git a/scripts/tags.sh b/scripts/tags.sh
index f72f48f638ae..ed7eef24ef89 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -185,6 +185,9 @@ regex_c=(
 	'/\<CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/ClearPage\1/'
 	'/\<__CLEARPAGEFLAG_NOOP(\([[:alnum:]_]*\).*/__ClearPage\1/'
 	'/\<TESTCLEARFLAG_FALSE(\([[:alnum:]_]*\).*/TestClearPage\1/'
+	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/Page\1/'
+	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/__SetPage\1/'
+	'/^PAGE_MAPCOUNT_OPS(\([[:alnum:]_]*\).*/__ClearPage\1/'
 	'/^TASK_PFA_TEST([^,]*, *\([[:alnum:]_]*\))/task_\1/'
 	'/^TASK_PFA_SET([^,]*, *\([[:alnum:]_]*\))/task_set_\1/'
 	'/^TASK_PFA_CLEAR([^,]*, *\([[:alnum:]_]*\))/task_clear_\1/'
-- 
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