Commit 84d1c054 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Linus Torvalds
Browse files

[PATCH] i386: pageattr remove __put_page 



Stop using __put_page and page_count in i386 pageattr.c

Signed-off-by: default avatarNick Piggin <npiggin@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent f9aed0e2

arch/i386/mm/pageattr.c

+13 −7
Original line number Diff line number Diff line
@@ -51,6 +51,13 @@ static struct page *split_large_page(unsigned long address, pgprot_t prot, 
	if (!base) 

		return NULL;



	/*

	 * page_private is used to track the number of entries in

	 * the page table page that have non standard attributes.

	 */

	SetPagePrivate(base);

	page_private(base) = 0;



	address = __pa(address);

	addr = address & LARGE_PAGE_MASK; 

	pbase = (pte_t *)page_address(base);
@@ -144,10 +151,11 @@ __change_page_attr(struct page *page, pgprot_t prot) 
			set_pmd_pte(kpte,address,mk_pte(split, ref_prot));

			kpte_page = split;

		}

		get_page(kpte_page);

		page_private(kpte_page)++;

	} else if ((pte_val(*kpte) & _PAGE_PSE) == 0) { 

		set_pte_atomic(kpte, mk_pte(page, PAGE_KERNEL));

		__put_page(kpte_page);

		BUG_ON(page_private(kpte_page) == 0);

		page_private(kpte_page)--;

	} else

		BUG();
@@ -157,10 +165,8 @@ __change_page_attr(struct page *page, pgprot_t prot) 
	 * replace it with a largepage.

	 */

	if (!PageReserved(kpte_page)) {

		/* memleak and potential failed 2M page regeneration */

		BUG_ON(!page_count(kpte_page));



		if (cpu_has_pse && (page_count(kpte_page) == 1)) {

		if (cpu_has_pse && (page_private(kpte_page) == 0)) {

			ClearPagePrivate(kpte_page);

			list_add(&kpte_page->lru, &df_list);

			revert_page(kpte_page, address);

		}