linux-kernel - [PATCH] fix page_reset_bad

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Message-Id: <20080418121046.892c44a5.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Fri, 18 Apr 2008 12:10:46 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, shiwh@...fujitsu.com,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"xemul@...nvz.org" <xemul@...nvz.org>
Subject: [PATCH] fix page_reset_bad_cgroup

page->page_cgroup is unsigned long. Should be cleared by 0UL.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>


Index: linux-2.6.25/include/linux/memcontrol.h
===================================================================
--- linux-2.6.25.orig/include/linux/memcontrol.h
+++ linux-2.6.25/include/linux/memcontrol.h
@@ -30,7 +30,7 @@ struct mm_struct;
 extern void mm_init_cgroup(struct mm_struct *mm, struct task_struct *p);
 extern void mm_free_cgroup(struct mm_struct *mm);
 
-#define page_reset_bad_cgroup(page)	((page)->page_cgroup = 0)
+#define page_reset_bad_cgroup(page)	((page)->page_cgroup = 0UL)
 
 extern struct page_cgroup *page_get_page_cgroup(struct page *page);
 extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm,

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