Commit d1a4be63 authored Apr 18, 2008 by Ingo Molnar

x86 PAT: fix mmap() of holes



do not return a -EINVAL when mmap()-ing PCI holes.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>

parent 2cca775b

arch/x86/mm/pageattr.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -542,7 +542,7 @@ static int __change_page_attr(struct cpa_data *cpa, int primary)
		repeat:
		kpte = lookup_address(address, &level);
		if (!kpte)
		return primary ? -EINVAL : 0;
		return 0;

		old_pte = *kpte;
		if (!pte_val(old_pte)) {