linux-kernel - [PATCH -mm 2/3] page-cgroup: get rid of NR_PCG

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Message-ID: <26252c1699103f7efe51b224dd61bdb74e31f255.1403626729.git.vdavydov@parallels.com>
Date:	Tue, 24 Jun 2014 20:33:05 +0400
From:	Vladimir Davydov <vdavydov@...allels.com>
To:	<akpm@...ux-foundation.org>
CC:	<hannes@...xchg.org>, <mhocko@...e.cz>,
	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>
Subject: [PATCH -mm 2/3] page-cgroup: get rid of NR_PCG_FLAGS

It's not used anywhere today, so let's remove it.

Signed-off-by: Vladimir Davydov <vdavydov@...allels.com>
---
 include/linux/page_cgroup.h |    6 ------
 kernel/bounds.c             |    2 --
 2 files changed, 8 deletions(-)

diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index 23863edb95ff..fb60e4a466c0 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -6,12 +6,8 @@ enum {
 	PCG_USED,	/* This page is charged to a memcg */
 	PCG_MEM,	/* This page holds a memory charge */
 	PCG_MEMSW,	/* This page holds a memory+swap charge */
-	__NR_PCG_FLAGS,
 };
 
-#ifndef __GENERATING_BOUNDS_H
-#include <generated/bounds.h>
-
 struct pglist_data;
 
 #ifdef CONFIG_MEMCG
@@ -107,6 +103,4 @@ static inline void swap_cgroup_swapoff(int type)
 
 #endif /* CONFIG_MEMCG_SWAP */
 
-#endif /* !__GENERATING_BOUNDS_H */
-
 #endif /* __LINUX_PAGE_CGROUP_H */
diff --git a/kernel/bounds.c b/kernel/bounds.c
index 9fd4246b04b8..e1d1d1952bfa 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -9,7 +9,6 @@
 #include <linux/page-flags.h>
 #include <linux/mmzone.h>
 #include <linux/kbuild.h>
-#include <linux/page_cgroup.h>
 #include <linux/log2.h>
 #include <linux/spinlock_types.h>
 
@@ -18,7 +17,6 @@ void foo(void)
 	/* The enum constants to put into include/generated/bounds.h */
 	DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
 	DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
-	DEFINE(NR_PCG_FLAGS, __NR_PCG_FLAGS);
 #ifdef CONFIG_SMP
 	DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
 #endif
-- 
1.7.10.4

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