Commit 7766a3fb authored by David Woodhouse's avatar David Woodhouse
Browse files

intel-iommu: Use cmpxchg64_local() for setting PTEs 



Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 85b98276

drivers/pci/intel-iommu.c

+1 −1
Original line number Diff line number Diff line
@@ -1682,7 +1682,7 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, 
		/* We don't need lock here, nobody else

		 * touches the iova range

		 */

		tmp = cmpxchg64(&pte->val, 0ULL, pteval);

		tmp = cmpxchg64_local(&pte->val, 0ULL, pteval);

		if (tmp) {

			static int dumps = 5;

			printk(KERN_CRIT "ERROR: DMA PTE for vPFN 0x%lx already set (to %llx not %llx)\n",