PCI: make CPU list affinity visible

Stephen Hemminger wrote:
> Looks like Mike created cpulistaffinty in sysfs but never completed
> the job.

This patch hooks things up correctly, taking care to remove the new file
when the bus is destroyed.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

3 files changed, 9 insertions, 0 deletions

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 529d9d7727b0..999cc4088b59 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -151,6 +151,13 @@ void pci_bus_add_devices(struct pci_bus *bus)
                         if (retval)
                                 dev_err(&dev->dev, "Error creating cpuaffinity"
                                         " file, continuing...\n");
+
+                        retval = device_create_file(&child_bus->dev,
+                                                &dev_attr_cpulistaffinity);
+                        if (retval)
+                                dev_err(&dev->dev,
+                                        "Error creating cpulistaffinity"
+                                        " file, continuing...\n");
                 }
         }
 }
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index d807cd786f20..4723b12fb39a 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -109,6 +109,7 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
 extern int pcie_mch_quirk;
 extern struct device_attribute pci_dev_attrs[];
 extern struct device_attribute dev_attr_cpuaffinity;
+extern struct device_attribute dev_attr_cpulistaffinity;
 
 /**
  * pci_match_one_device - Tell if a PCI device structure has a matching
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index bdc2a44d68e1..f94f6d5ae297 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -73,6 +73,7 @@ void pci_remove_bus(struct pci_bus *pci_bus)
         up_write(&pci_bus_sem);
         pci_remove_legacy_files(pci_bus);
         device_remove_file(&pci_bus->dev, &dev_attr_cpuaffinity);
+        device_remove_file(&pci_bus->dev, &dev_attr_cpulistaffinity);
         device_unregister(&pci_bus->dev);
 }
 EXPORT_SYMBOL(pci_remove_bus);