commit bdd3cee2e4b7279457139058615ced6c2b41e7de
author Ingo Molnar <mingo@elte.hu> Thu Feb 28 14:10:49 2008 +0100
committer Ingo Molnar <mingo@elte.hu> Thu Apr 17 17:40:51 2008 +0200
tree 33ded8c908163e54792cb91ba2eacc144c366abc
parent b089c12b25284a5e31ede7c98936a2b36a41e090

x86: ioremap(), extend check to all RAM pages

Suggested by Jan Beulich.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jan Beulich <jbeulich@novell.com>

arch/x86/mm/ioremap.c

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 17f5188..e5608d3 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -146,8 +146,9 @@
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
-	for (pfn = phys_addr >> PAGE_SHIFT; pfn < max_pfn_mapped &&
-	     (pfn << PAGE_SHIFT) < last_addr; pfn++) {
+	for (pfn = phys_addr >> PAGE_SHIFT;
+				(pfn << PAGE_SHIFT) < last_addr; pfn++) {
+
 		if (page_is_ram(pfn) && pfn_valid(pfn) &&
 		    !PageReserved(pfn_to_page(pfn)))
 			return NULL;