mm/x86: 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: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Cong Wang <amwang@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Attilio Rao <attilio.rao@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 1 insertions, 10 deletions

diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 6f31ee56c008..252b8f5489ba 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -137,5 +137,4 @@ void __init set_highmem_pages_init(void)
                 add_highpages_with_active_regions(nid, zone_start_pfn,
                                  zone_end_pfn);
         }
-        totalram_pages += totalhigh_pages;
 }
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 2d19001151d5..3ac7e319918d 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -427,14 +427,6 @@ static void __init permanent_kmaps_init(pgd_t *pgd_base)
         pkmap_page_table = pte;
 }
 
-static void __init add_one_highpage_init(struct page *page)
-{
-        ClearPageReserved(page);
-        init_page_count(page);
-        __free_page(page);
-        totalhigh_pages++;
-}
-
 void __init add_highpages_with_active_regions(int nid,
                          unsigned long start_pfn, unsigned long end_pfn)
 {
@@ -448,7 +440,7 @@ void __init add_highpages_with_active_regions(int nid,
                                               start_pfn, end_pfn);
                 for ( ; pfn < e_pfn; pfn++)
                         if (pfn_valid(pfn))
-                                add_one_highpage_init(pfn_to_page(pfn));
+                                free_highmem_page(pfn_to_page(pfn));
         }
 }
 #else