lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

intel-iommu: Use cmpxchg64_local() for setting PTEs

Browse Source 
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse
2009-07-01 20:27:03 +01:00
parent 85b98276f2
commit 7766a3fb90
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/pci/intel-iommu.c
View File

@@ -1682,7 +1682,7 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn,
/* We don't need lock here, nobody else /* We don't need lock here, nobody else
* touches the iova range * touches the iova range
*/ */
tmp = cmpxchg64(&pte->val, 0ULL, pteval); tmp = cmpxchg64_local(&pte->val, 0ULL, pteval);
if (tmp) { if (tmp) {
static int dumps = 5; static int dumps = 5;
printk(KERN_CRIT "ERROR: DMA PTE for vPFN 0x%lx already set (to %llx not %llx)\n", printk(KERN_CRIT "ERROR: DMA PTE for vPFN 0x%lx already set (to %llx not %llx)\n",