Messages in this thread Patch in this message | | | Date | Mon, 23 May 2005 16:32:35 -0700 | From | Chris Wright <> | Subject | [patch 16/16] x86_64: Don't look up struct page pointer of physical address in iounmap |
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[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.
Back port to -stable tree by Chris Wright
Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Chris Wright <chrisw@osdl.org> ---
ioremap.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-)
Index: release-2.6.11/arch/x86_64/mm/ioremap.c =================================================================== --- release-2.6.11.orig/arch/x86_64/mm/ioremap.c +++ release-2.6.11/arch/x86_64/mm/ioremap.c @@ -266,7 +266,7 @@ 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_SIZE) >> PAGE_SHIFT, PAGE_KERNEL); global_flush_tlb(); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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