From 99c876f21e6d7d2512eb4aa6b20601524a5d9f9d Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 19 Jun 2013 10:06:20 +1000
Subject: [PATCH] mm-correctly-update-zone-managed_pages-fix

remove ifdef, per Wanpeng Li, virtio_balloon.c cleanup, per Sergei

Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: <sworddragon2@aol.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Michel Lespinasse <walken@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 drivers/virtio/virtio_balloon.c | 3 +--
 mm/page_alloc.c                 | 2 --
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index ffd9e832f339..1f572c00a1be 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -160,11 +160,10 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num)
 static void release_pages_by_pfn(const u32 pfns[], unsigned int num)
 {
 	unsigned int i;
-	struct page *page;
 
 	/* Find pfns pointing at start of each page, get pages and free them. */
 	for (i = 0; i < num; i += VIRTIO_BALLOON_PAGES_PER_PAGE) {
-		page = balloon_pfn_to_page(pfns[i]);
+		struct page *page = balloon_pfn_to_page(pfns[i]);
 		balloon_page_free(page);
 		adjust_managed_page_count(page, 1);
 	}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 45ed6a35d25b..12722217efbf 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5203,10 +5203,8 @@ void adjust_managed_page_count(struct page *page, long count)
 	spin_lock(&managed_page_count_lock);
 	page_zone(page)->managed_pages += count;
 	totalram_pages += count;
-#ifdef	CONFIG_HIGHMEM
 	if (PageHighMem(page))
 		totalhigh_pages += count;
-#endif
 	spin_unlock(&managed_page_count_lock);
 }
 
-- 
2.39.5