[PATCH v2, part1 25/29] mm/x86: use common help functions to free reserved pages

[Jiang Liu <liuj97@gmail.com>]

Use common help functions to free reserved pages.

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>
---
 arch/x86/mm/init.c    |    5 +----
 arch/x86/mm/init_64.c |    5 ++---
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 4903a03..4a705e6 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -516,11 +516,8 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
 	printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10);
 
 	for (; addr < end; addr += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(addr));
-		init_page_count(virt_to_page(addr));
 		memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
-		free_page(addr);
-		totalram_pages++;
+		free_reserved_page(virt_to_page(addr));
 	}
 #endif
 }
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 474e28f..2ef81f1 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1067,10 +1067,9 @@ void __init mem_init(void)
 
 	/* clear_bss() already clear the empty_zero_page */
 
-	reservedpages = 0;
-
-	/* this will put all low memory onto the freelists */
 	register_page_bootmem_info();
+
+	/* this will put all memory onto the freelists */
 	totalram_pages = free_all_bootmem();
 
 	absent_pages = absent_pages_in_range(0, max_pfn);
-- 
1.7.9.5

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