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[RFC,Part1,V1,04/30] x86, PCI, ACPI: use kmalloc_node() to optimize for performance

Message ID 1400227550-5935-5-git-send-email-jiang.liu@linux.intel.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show

Commit Message

Jiang Liu May 16, 2014, 8:05 a.m. UTC 
Use kmalloc_node() instead of kmalloc() when possible to optimize
for performance on NUMA platforms.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/x86/pci/acpi.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 01edac6c5e18..91bef49df228 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -448,7 +448,7 @@  static void probe_pci_root_info(struct pci_root_info *info,
 		return;
 
 	size = sizeof(*info->res) * info->res_num;
-	info->res = kzalloc(size, GFP_KERNEL);
+	info->res = kzalloc_node(size, GFP_KERNEL, info->sd.node);
 	if (!info->res) {
 		info->res_num = 0;
 		return;
@@ -456,7 +456,7 @@  static void probe_pci_root_info(struct pci_root_info *info,
 
 	size = sizeof(*info->res_offset) * info->res_num;
 	info->res_num = 0;
-	info->res_offset = kzalloc(size, GFP_KERNEL);
+	info->res_offset = kzalloc_node(size, GFP_KERNEL, info->sd.node);
 	if (!info->res_offset) {
 		kfree(info->res);
 		info->res = NULL;
@@ -495,7 +495,7 @@  struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 	if (node != NUMA_NO_NODE && !node_online(node))
 		node = NUMA_NO_NODE;
 
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = kzalloc_node(sizeof(*info), GFP_KERNEL, node);
 	if (!info) {
 		printk(KERN_WARNING "pci_bus %04x:%02x: "
 		       "ignored (out of memory)\n", domain, busnum);