From: Jiang Liu <liuj97@gmail.com>
Date: Mon, 29 Apr 2013 22:07:05 +0000 (-0700)
Subject: mm/metag: use free_highmem_page() to free highmem pages into buddy system
X-Git-Tag: firefly_0821_release~3680^2~665^2~82
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a564496e2cf9ea37a553d27c8ca4cef78015b2e2;p=firefly-linux-kernel-4.4.55.git

mm/metag: use free_highmem_page() to free highmem pages into buddy system

Use helper function free_highmem_page() to free highmem pages into
the buddy system.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c
index c6784fb3a334..d05b8455c44c 100644
--- a/arch/metag/mm/init.c
+++ b/arch/metag/mm/init.c
@@ -380,14 +380,8 @@ void __init mem_init(void)
 
 #ifdef CONFIG_HIGHMEM
 	unsigned long tmp;
-	for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) {
-		struct page *page = pfn_to_page(tmp);
-		ClearPageReserved(page);
-		init_page_count(page);
-		__free_page(page);
-		totalhigh_pages++;
-	}
-	totalram_pages += totalhigh_pages;
+	for (tmp = highstart_pfn; tmp < highend_pfn; tmp++)
+		free_highmem_page(pfn_to_page(tmp));
 	num_physpages += totalhigh_pages;
 #endif /* CONFIG_HIGHMEM */