amd-iommu: don't preallocate page tables with CONFIG_IOMMU_STRESS

This forces testing of on-demand page table allocation code. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
git-mirror · May 28, 2009 · f5e9705 · f5e9705
1 parent fe16f08
commit f5e9705
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
@@ -661,6 +661,10 @@ static int alloc_new_range(struct amd_iommu *iommu,
 	int index = dma_dom->aperture_size >> APERTURE_RANGE_SHIFT;
 	int i;
 
+#ifdef CONFIG_IOMMU_STRESS
+	populate = false;
+#endif
+
 	if (index >= APERTURE_MAX_RANGES)
 		return -ENOMEM;