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authorAndi Kleen <ak@suse.de>2005-09-12 12:49:24 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-12 13:49:57 -0400
commit117090b5e815d0075bff85c2be954d68a11ac4ed (patch)
treed1eeba143c17dbf5ae6d4baf45efcaa3229e80b1 /arch/x86_64/kernel/pci-gart.c
parent1d3fbbf9fe8d5cd5f94256781cc69a4ac289a767 (diff)
[PATCH] x86-64: Micro optimization to dma_alloc_coherent node lookup
Use pcibus_to_node directly Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/pci-gart.c')
-rw-r--r--arch/x86_64/kernel/pci-gart.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 57f35c68aa34..cf0a0315d586 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -191,11 +191,9 @@ static void *dma_alloc_pages(struct device *dev, unsigned gfp, unsigned order)
191{ 191{
192 struct page *page; 192 struct page *page;
193 int node; 193 int node;
194 if (dev->bus == &pci_bus_type) { 194 if (dev->bus == &pci_bus_type)
195 cpumask_t mask; 195 node = pcibus_to_node(to_pci_dev(dev)->bus);
196 mask = pcibus_to_cpumask(to_pci_dev(dev)->bus); 196 else
197 node = cpu_to_node(first_cpu(mask));
198 } else
199 node = numa_node_id(); 197 node = numa_node_id();
200 page = alloc_pages_node(node, gfp, order); 198 page = alloc_pages_node(node, gfp, order);
201 return page ? page_address(page) : NULL; 199 return page ? page_address(page) : NULL;