[patch 2/4] dmar: Allocate queued invalidation structure using numa locality info

From: Suresh Siddha
Date: Fri Oct 02 2009 - 14:07:47 EST


Allocate queued invalidation descriptor structures using numa locality info.

Signed-off-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>
---
drivers/pci/dmar.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

Index: iommu-2.6/drivers/pci/dmar.c
===================================================================
--- iommu-2.6.orig/drivers/pci/dmar.c
+++ iommu-2.6/drivers/pci/dmar.c
@@ -1040,6 +1040,7 @@ static void __dmar_enable_qi(struct inte
int dmar_enable_qi(struct intel_iommu *iommu)
{
struct q_inval *qi;
+ struct page *desc_page;

if (!ecap_qis(iommu->ecap))
return -ENOENT;
@@ -1056,13 +1057,16 @@ int dmar_enable_qi(struct intel_iommu *i

qi = iommu->qi;

- qi->desc = (void *)(get_zeroed_page(GFP_ATOMIC));
- if (!qi->desc) {
+
+ desc_page = alloc_pages_node(iommu->node, GFP_ATOMIC | __GFP_ZERO, 0);
+ if (!desc_page) {
kfree(qi);
iommu->qi = 0;
return -ENOMEM;
}

+ qi->desc = page_address(desc_page);
+
qi->desc_status = kmalloc(QI_LENGTH * sizeof(int), GFP_ATOMIC);
if (!qi->desc_status) {
free_page((unsigned long) qi->desc);


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