Commit 0d358f22 authored by Yinghai Lu's avatar Yinghai Lu Committed by Ingo Molnar
Browse files

driver core: try parent numa_node at first before using default 



in the device_add, we try to use use parent numa_node.
need to make sure pci root bus's bridge device numa_node is set.
then we could use device->numa_node direclty for all device.
and don't need to call pcibus_to_node().

Signed-off-by: default avatarYinghai Lu <yinghai.lu@sun.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent d39398a3

drivers/base/core.c

+12 −2
Original line number Diff line number Diff line
@@ -787,6 +787,10 @@ int device_add(struct device *dev) 
	parent = get_device(dev->parent);

	setup_parent(dev, parent);



	/* use parent numa_node */

	if (parent)

		set_dev_node(dev, dev_to_node(parent));



	/* first, register with generic layer. */

	error = kobject_add(&dev->kobj, dev->kobj.parent, "%s", dev->bus_id);

	if (error)
@@ -1306,8 +1310,11 @@ int device_move(struct device *dev, struct device *new_parent) 
	dev->parent = new_parent;

	if (old_parent)

		klist_remove(&dev->knode_parent);

	if (new_parent)

	if (new_parent) {

		klist_add_tail(&dev->knode_parent, &new_parent->klist_children);

		set_dev_node(dev, dev_to_node(new_parent));

	}



	if (!dev->class)

		goto out_put;

	error = device_move_class_links(dev, old_parent, new_parent);
@@ -1317,9 +1324,12 @@ int device_move(struct device *dev, struct device *new_parent) 
		if (!kobject_move(&dev->kobj, &old_parent->kobj)) {

			if (new_parent)

				klist_remove(&dev->knode_parent);

			if (old_parent)

			dev->parent = old_parent;

			if (old_parent) {

				klist_add_tail(&dev->knode_parent,

					       &old_parent->klist_children);

				set_dev_node(dev, dev_to_node(old_parent));

			}

		}

		cleanup_glue_dir(dev, new_parent_kobj);

		put_device(new_parent);

drivers/pci/probe.c

+3 −1
Original line number Diff line number Diff line
@@ -973,7 +973,6 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus) 
	dev->dev.release = pci_release_dev;

	pci_dev_get(dev);



	set_dev_node(&dev->dev, pcibus_to_node(bus));

	dev->dev.dma_mask = &dev->dma_mask;

	dev->dev.dma_parms = &dev->dma_parms;

	dev->dev.coherent_dma_mask = 0xffffffffull;
@@ -1128,6 +1127,9 @@ struct pci_bus * pci_create_bus(struct device *parent, 
		goto dev_reg_err;

	b->bridge = get_device(dev);



	if (!parent)

		set_dev_node(b->bridge, pcibus_to_node(b));



	b->dev.class = &pcibus_class;

	b->dev.parent = b->bridge;

	sprintf(b->dev.bus_id, "%04x:%02x", pci_domain_nr(b), bus);

CRA Git | Maintained and supported by SUSTech CRA and CCSE