linux-kernel - [PATCH] memory: fix the argument passed to sync_alobal

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Message-ID: <50B33E35.2020106@cn.fujitsu.com>
Date:	Mon, 26 Nov 2012 18:02:29 +0800
From:	Wen Congyang <wency@...fujitsu.com>
To:	lkml <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	Minchan Kim <minchan@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Jiang Liu <liuj97@...il.com>, Mel Gorman <mgorman@...e.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Yasuaki ISIMATU <isimatu.yasuaki@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Subject: [PATCH] memory: fix the argument passed to sync_alobal_pgds()

The address rang of sync_global_pgds() should be [start, end],
but we pass [start, end) to this function.

Cc: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Cc: David Rientjes <rientjes@...gle.com>
Cc: Jiang Liu <liuj97@...il.com>
Cc: Minchan Kim <minchan.kim@...il.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Mel Gorman <mel@....ul.ie>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Signed-off-by: Wen Congyang <wency@...fujitsu.com>
---
 arch/x86/mm/init_64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 3baff25..df50b43 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -605,7 +605,7 @@ kernel_physical_mapping_init(unsigned long start,
 	}
 
 	if (pgd_changed)
-		sync_global_pgds(addr, end);
+		sync_global_pgds(addr, end - 1);
 
 	__flush_tlb_all();
 
@@ -979,7 +979,7 @@ vmemmap_populate(struct page *start_page, unsigned long size, int node)
 		}
 
 	}
-	sync_global_pgds((unsigned long)start_page, end);
+	sync_global_pgds((unsigned long)start_page, end - 1);
 	return 0;
 }
 
-- 
1.8.0
--
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