[PATCH] Add a klist to struct bus_type for its drivers.

- Use it in bus_for_each_drv().
- Use the klist spinlock instead of the bus rwsem.

Signed-off-by: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index e36953cf7f14..ea9ab33dfe71 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -53,6 +53,7 @@ struct bus_type {
         struct kset             drivers;
         struct kset             devices;
         struct klist            klist_devices;
+        struct klist            klist_drivers;
 
         struct bus_attribute    * bus_attrs;
         struct device_attribute * dev_attrs;
@@ -105,6 +106,7 @@ struct device_driver {
         struct completion       unloaded;
         struct kobject          kobj;
         struct list_head        devices;
+        struct klist_node       knode_bus;
 
         struct module           * owner;