From 2544a873ab2a1ee9196bb2f4b12c3afd44ec8a06 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 29 Apr 2008 12:04:51 +0200 Subject: [PATCH] revert: "x86: ioremap(), extend check to all RAM pages" Vegard Nossum reported a large (150 seconds) boot delay during bootup, and bisected it to "x86: ioremap(), extend check to all RAM pages" (commit bdd3cee2e4b). Revert this commit for now. Bisected-by: Vegard Nossum Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/mm/ioremap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 804de18abcc2..0be9f9c59aa6 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -148,8 +148,8 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr, /* * Don't allow anybody to remap normal RAM that we're using.. */ - for (pfn = phys_addr >> PAGE_SHIFT; - (pfn << PAGE_SHIFT) < last_addr; pfn++) { + for (pfn = phys_addr >> PAGE_SHIFT; pfn < max_pfn_mapped && + (pfn << PAGE_SHIFT) < last_addr; pfn++) { int is_ram = page_is_ram(pfn);