From 93ef70a217637ade3f335303a112b22a134a1ec2 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 16 May 2005 21:53:24 -0700 Subject: [PATCH] [PATCH] x86_64: Don't look up struct page pointer of physical address in iounmap It could be in a memory hole not mapped in mem_map and that causes the hash lookup to go off to nirvana. Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86_64/mm/ioremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86_64/mm/ioremap.c b/arch/x86_64/mm/ioremap.c index 74ec855..c6fb0cb 100644 --- a/arch/x86_64/mm/ioremap.c +++ b/arch/x86_64/mm/ioremap.c @@ -272,7 +272,7 @@ void iounmap(volatile void __iomem *addr) if ((p->flags >> 20) && p->phys_addr + p->size - 1 < virt_to_phys(high_memory)) { /* p->size includes the guard page, but cpa doesn't like that */ - change_page_attr(virt_to_page(__va(p->phys_addr)), + change_page_attr_addr((unsigned long)__va(p->phys_addr), p->size >> PAGE_SHIFT, PAGE_KERNEL); global_flush_tlb(); -- 2.7.4