[RFC PATCH v1 21/33] mm/SH: use common help functions to free reserved pages

[Jiang Liu]

Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
---
 arch/sh/mm/init.c |   26 +++-----------------------
 1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 1057940..20f9ead 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -417,15 +417,13 @@ void __init mem_init(void)
 
 	for_each_online_node(nid) {
 		pg_data_t *pgdat = NODE_DATA(nid);
-		unsigned long node_pages = 0;
 		void *node_high_memory;
 
 		num_physpages += pgdat->node_present_pages;
 
 		if (pgdat->node_spanned_pages)
-			node_pages = free_all_bootmem_node(pgdat);
+			totalram_pages += free_all_bootmem_node(pgdat);
 
-		totalram_pages += node_pages;
 
 		node_high_memory = (void *)__va((pgdat->node_start_pfn +
 						 pgdat->node_spanned_pages) <<
@@ -501,31 +499,13 @@ void __init mem_init(void)
 
 void free_initmem(void)
 {
-	unsigned long addr;
-
-	addr = (unsigned long)(&__init_begin);
-	for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(addr));
-		init_page_count(virt_to_page(addr));
-		free_page(addr);
-		totalram_pages++;
-	}
-	printk("Freeing unused kernel memory: %ldk freed\n",
-	       ((unsigned long)&__init_end -
-	        (unsigned long)&__init_begin) >> 10);
+	free_initmem_default(0);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	unsigned long p;
-	for (p = start; p < end; p += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(p));
-		init_page_count(virt_to_page(p));
-		free_page(p);
-		totalram_pages++;
-	}
-	printk("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+	free_reserved_area(start, end, 0, "initrd");
 }
 #endif
 
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/