[PATCH] disk quotas fail when /etc/mtab is symlinked to /proc/mounts

[safe/jmp/linux-2.6] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index 68a9535..06e5d42 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -14,6 +14,7 @@
 #include <linux/config.h>
 #include <linux/ioport.h>
 #include <linux/kobject.h>
+#include <linux/klist.h>
 #include <linux/list.h>
 #include <linux/types.h>
 #include <linux/module.h>
@@ -51,6 +52,8 @@ struct bus_type {
        struct subsystem        subsys;
        struct kset             drivers;
        struct kset             devices;
+       struct klist            klist_devices;
+       struct klist            klist_drivers;
 
        struct bus_attribute    * bus_attrs;
        struct device_attribute * dev_attrs;
@@ -66,7 +69,7 @@ struct bus_type {
 extern int bus_register(struct bus_type * bus);
 extern void bus_unregister(struct bus_type * bus);
 
-extern int bus_rescan_devices(struct bus_type * bus);
+extern void bus_rescan_devices(struct bus_type * bus);
 
 extern struct bus_type * get_bus(struct bus_type * bus);
 extern void put_bus(struct bus_type * bus);
@@ -77,6 +80,8 @@ extern struct bus_type * find_bus(char * name);
 
 int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data,
                     int (*fn)(struct device *, void *));
+struct device * bus_find_device(struct bus_type *bus, struct device *start,
+                               void *data, int (*match)(struct device *, void *));
 
 int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, 
                     void * data, int (*fn)(struct device_driver *, void *));
@@ -102,7 +107,8 @@ struct device_driver {
 
        struct completion       unloaded;
        struct kobject          kobj;
-       struct list_head        devices;
+       struct klist            klist_devices;
+       struct klist_node       knode_bus;
 
        struct module           * owner;
 
@@ -136,6 +142,12 @@ struct driver_attribute driver_attr_##_name = __ATTR(_name,_mode,_show,_store)
 extern int driver_create_file(struct device_driver *, struct driver_attribute *);
 extern void driver_remove_file(struct device_driver *, struct driver_attribute *);
 
+extern int driver_for_each_device(struct device_driver * drv, struct device * start,
+                                 void * data, int (*fn)(struct device *, void *));
+struct device * driver_find_device(struct device_driver *drv,
+                                  struct device *start, void *data,
+                                  int (*match)(struct device *, void *));
+
 
 /*
  * device classes
@@ -255,21 +267,27 @@ extern void class_device_destroy(struct class *cls, dev_t devt);
 
 
 struct device {
-       struct list_head node;          /* node in sibling list */
-       struct list_head bus_list;      /* node in bus's list */
-       struct list_head driver_list;
-       struct list_head children;
+       struct klist            klist_children;
+       struct klist_node       knode_parent;           /* node in sibling list */
+       struct klist_node       knode_driver;
+       struct klist_node       knode_bus;
        struct device   * parent;
 
        struct kobject kobj;
        char    bus_id[BUS_ID_SIZE];    /* position on parent bus */
 
+       struct semaphore        sem;    /* semaphore to synchronize calls to
+                                        * its driver.
+                                        */
+
        struct bus_type * bus;          /* type of bus device is on */
        struct device_driver *driver;   /* which driver has allocated this
                                           device */
        void            *driver_data;   /* data private to the driver */
-       void            *platform_data; /* Platform specific data (e.g. ACPI,
-                                          BIOS data relevant to device) */
+       void            *platform_data; /* Platform specific data, device
+                                          core doesn't touch it */
+       void            *firmware_data; /* Firmware specific data (e.g. ACPI,
+                                          BIOS data),reserved for device core*/
        struct dev_pm_info      power;
 
        u64             *dma_mask;      /* dma mask (if dma'able device) */
@@ -287,12 +305,6 @@ struct device {
        void    (*release)(struct device * dev);
 };
 
-static inline struct device *
-list_to_dev(struct list_head *node)
-{
-       return list_entry(node, struct device, node);
-}
-
 static inline void *
 dev_get_drvdata (struct device *dev)
 {
@@ -320,7 +332,6 @@ extern int device_for_each_child(struct device *, void *,
  * Manual binding of a device to driver. See drivers/base/bus.c
  * for information on use.
  */
-extern int  driver_probe_device(struct device_driver * drv, struct device * dev);
 extern void device_bind_driver(struct device * dev);
 extern void device_release_driver(struct device * dev);
 extern int  device_attach(struct device * dev);
@@ -331,8 +342,10 @@ extern void driver_attach(struct device_driver * drv);
 
 struct device_attribute {
        struct attribute        attr;
-       ssize_t (*show)(struct device * dev, char * buf);
-       ssize_t (*store)(struct device * dev, const char * buf, size_t count);
+       ssize_t (*show)(struct device *dev, struct device_attribute *attr,
+                       char *buf);
+       ssize_t (*store)(struct device *dev, struct device_attribute *attr,
+                        const char *buf, size_t count);
 };
 
 #define DEVICE_ATTR(_name,_mode,_show,_store) \
@@ -359,7 +372,6 @@ extern int (*platform_notify_remove)(struct device * dev);
  */
 extern struct device * get_device(struct device * dev);
 extern void put_device(struct device * dev);
-extern struct device *device_find(const char *name, struct bus_type *bus);
 
 
 /* drivers/base/platform.c */