[PATCH] remove set_page_count() outside mm/

set_page_count usage outside mm/ is limited to setting the refcount to 1.
Remove set_page_count from outside mm/, and replace those users with
init_page_count() and set_page_refcounted().

This allows more debug checking, and tighter control on how code is allowed
to play around with page->_count.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index e342565f75fb..77b4a838fe10 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -273,7 +273,7 @@ void free_initmem(void)
         addr = (unsigned long)(&__init_begin);
         for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
                 ClearPageReserved(virt_to_page(addr));
-                set_page_count(virt_to_page(addr), 1);
+                init_page_count(virt_to_page(addr));
                 free_page(addr);
                 totalram_pages++;
         }
@@ -286,7 +286,7 @@ 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));
-                set_page_count(virt_to_page(p), 1);
+                init_page_count(virt_to_page(p));
                 free_page(p);
                 totalram_pages++;
         }