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| author | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-30 04:38:09 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-06-30 04:57:38 +0200 |
| commit | 3d7b0e4154b4963d6bd39991ec8eaa09caeb3994 (patch) | |
| tree | 8c92261cda93b9635e7f84f218f47b2f6f68814e | |
| parent | intel-iommu: dump mappings but don't die on pte already set (diff) | |
| download | linux-3d7b0e4154b4963d6bd39991ec8eaa09caeb3994.tar.xz linux-3d7b0e4154b4963d6bd39991ec8eaa09caeb3994.zip | |
intel-iommu: Don't free too much in dma_pte_free_pagetable()
The loop condition was wrong -- we should free a PMD only if its
_entire_ range is within the range we're intending to clear. The
early-termination condition was right, but not the loop.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/pci/intel-iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 40ce5a03f18f..35bdd2a06caa 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -815,7 +815,7 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain, if (tmp + level_size(level) - 1 > last_pfn) return; - while (tmp <= last_pfn) { + while (tmp + level_size(level) - 1 <= last_pfn) { pte = dma_pfn_level_pte(domain, tmp, level); if (pte) { free_pgtable_page( |