Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (61 commits)
  sysfs: add parameter "struct bin_attribute *" in .read/.write methods for sysfs binary attributes
  sysfs: make directory dentries and inodes reclaimable
  sysfs: implement sysfs_get_dentry()
  sysfs: move sysfs_drop_dentry() to dir.c and make it static
  sysfs: restructure add/remove paths and fix inode update
  sysfs: use sysfs_mutex to protect the sysfs_dirent tree
  sysfs: consolidate sysfs spinlocks
  sysfs: make kobj point to sysfs_dirent instead of dentry
  sysfs: implement sysfs_find_dirent() and sysfs_get_dirent()
  sysfs: implement SYSFS_FLAG_REMOVED flag
  sysfs: rename sysfs_dirent->s_type to s_flags and make room for flags
  sysfs: make sysfs_drop_dentry() access inodes using ilookup()
  sysfs: Fix oops in sysfs_drop_dentry on x86_64
  sysfs: use singly-linked list for sysfs_dirent tree
  sysfs: slim down sysfs_dirent->s_active
  sysfs: move s_active functions to fs/sysfs/dir.c
  sysfs: fix root sysfs_dirent -> root dentry association
  sysfs: use iget_locked() instead of new_inode()
  sysfs: reorganize sysfs_new_indoe() and sysfs_create()
  sysfs: fix parent refcounting during rename and move
  ...

8 files changed, 80 insertions, 31 deletions

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 5a9c49534d08..104e51e20e14 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -38,6 +38,9 @@ struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
 
 void debugfs_remove(struct dentry *dentry);
 
+struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
+                struct dentry *new_dir, const char *new_name);
+
 struct dentry *debugfs_create_u8(const char *name, mode_t mode,
                                  struct dentry *parent, u8 *value);
 struct dentry *debugfs_create_u16(const char *name, mode_t mode,
@@ -85,6 +88,12 @@ static inline struct dentry *debugfs_create_symlink(const char *name,
 static inline void debugfs_remove(struct dentry *dentry)
 { }
 
+static inline struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
+                struct dentry *new_dir, char *new_name)
+{
+        return ERR_PTR(-ENODEV);
+}
+
 static inline struct dentry *debugfs_create_u8(const char *name, mode_t mode,
                                                struct dentry *parent,
                                                u8 *value)
diff --git a/include/linux/device.h b/include/linux/device.h
index 2e1a2988b7e1..be2debed70d2 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -238,7 +238,6 @@ extern int __must_check class_device_create_file(struct class_device *,
  * @devt: for internal use by the driver core only.
  * @node: for internal use by the driver core only.
  * @kobj: for internal use by the driver core only.
- * @devt_attr: for internal use by the driver core only.
  * @groups: optional additional groups to be created
  * @dev: if set, a symlink to the struct device is created in the sysfs
  * directory for this struct class device.
@@ -263,8 +262,6 @@ struct class_device {
         struct kobject          kobj;
         struct class            * class;        /* required */
         dev_t                   devt;           /* dev_t, creates the sysfs "dev" */
-        struct class_device_attribute *devt_attr;
-        struct class_device_attribute uevent_attr;
         struct device           * dev;          /* not necessary, but nice to have */
         void                    * class_data;   /* class-specific data */
         struct class_device     *parent;        /* parent of this child device, if there is one */
@@ -419,8 +416,6 @@ struct device {
         struct device_type      *type;
         unsigned                is_registered:1;
         unsigned                uevent_suppress:1;
-        struct device_attribute uevent_attr;
-        struct device_attribute *devt_attr;
 
         struct semaphore        sem;    /* semaphore to synchronize calls to
                                          * its driver.
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 904bf3d2d90b..b8ac7b01c45e 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -12,9 +12,17 @@ enum dmi_field {
         DMI_PRODUCT_NAME,
         DMI_PRODUCT_VERSION,
         DMI_PRODUCT_SERIAL,
+        DMI_PRODUCT_UUID,
         DMI_BOARD_VENDOR,
         DMI_BOARD_NAME,
         DMI_BOARD_VERSION,
+        DMI_BOARD_SERIAL,
+        DMI_BOARD_ASSET_TAG,
+        DMI_CHASSIS_VENDOR,
+        DMI_CHASSIS_TYPE,
+        DMI_CHASSIS_VERSION,
+        DMI_CHASSIS_SERIAL,
+        DMI_CHASSIS_ASSET_TAG,
         DMI_STRING_MAX,
 };
 
diff --git a/include/linux/idr.h b/include/linux/idr.h
index 826803449db7..915572fa030b 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -83,4 +83,33 @@ void idr_remove(struct idr *idp, int id);
 void idr_destroy(struct idr *idp);
 void idr_init(struct idr *idp);
 
+
+/*
+ * IDA - IDR based id allocator, use when translation from id to
+ * pointer isn't necessary.
+ */
+#define IDA_CHUNK_SIZE          128     /* 128 bytes per chunk */
+#define IDA_BITMAP_LONGS        (128 / sizeof(long) - 1)
+#define IDA_BITMAP_BITS         (IDA_BITMAP_LONGS * sizeof(long) * 8)
+
+struct ida_bitmap {
+        long                    nr_busy;
+        unsigned long           bitmap[IDA_BITMAP_LONGS];
+};
+
+struct ida {
+        struct idr              idr;
+        struct ida_bitmap       *free_bitmap;
+};
+
+#define IDA_INIT(name)          { .idr = IDR_INIT(name), .free_bitmap = NULL, }
+#define DEFINE_IDA(name)        struct ida name = IDA_INIT(name)
+
+int ida_pre_get(struct ida *ida, gfp_t gfp_mask);
+int ida_get_new_above(struct ida *ida, int starting_id, int *p_id);
+int ida_get_new(struct ida *ida, int *p_id);
+void ida_remove(struct ida *ida, int id);
+void ida_destroy(struct ida *ida);
+void ida_init(struct ida *ida);
+
 #endif /* __IDR_H__ */
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index c288e41ba331..06cbf41d32d2 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -55,7 +55,7 @@ struct kobject {
         struct kobject          * parent;
         struct kset             * kset;
         struct kobj_type        * ktype;
-        struct dentry           * dentry;
+        struct sysfs_dirent     * sd;
         wait_queue_head_t       poll;
 };
 
@@ -71,13 +71,14 @@ extern void kobject_init(struct kobject *);
 extern void kobject_cleanup(struct kobject *);
 
 extern int __must_check kobject_add(struct kobject *);
-extern int __must_check kobject_shadow_add(struct kobject *, struct dentry *);
+extern int __must_check kobject_shadow_add(struct kobject *kobj,
+                                           struct sysfs_dirent *shadow_parent);
 extern void kobject_del(struct kobject *);
 
 extern int __must_check kobject_rename(struct kobject *, const char *new_name);
 extern int __must_check kobject_shadow_rename(struct kobject *kobj,
-                                                struct dentry *new_parent,
-                                                const char *new_name);
+                                              struct sysfs_dirent *new_parent,
+                                              const char *new_name);
 extern int __must_check kobject_move(struct kobject *, struct kobject *);
 
 extern int __must_check kobject_register(struct kobject *);
diff --git a/include/linux/pm.h b/include/linux/pm.h
index b2c4fde4e994..273781c82e4d 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -267,15 +267,10 @@ struct dev_pm_info {
         unsigned                can_wakeup:1;
 #ifdef  CONFIG_PM
         unsigned                should_wakeup:1;
-        pm_message_t            prev_state;
-        void                    * saved_state;
-        struct device           * pm_parent;
         struct list_head        entry;
 #endif
 };
 
-extern void device_pm_set_parent(struct device * dev, struct device * parent);
-
 extern int device_power_down(pm_message_t state);
 extern void device_power_up(void);
 extern void device_resume(void);
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index e699ab279c2c..e285746588d6 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -101,8 +101,7 @@ struct sysdev_attribute {
 
 #define _SYSDEV_ATTR(_name,_mode,_show,_store)                  \
 {                                                               \
-        .attr = { .name = __stringify(_name), .mode = _mode,    \
-                 .owner = THIS_MODULE },                        \
+        .attr = { .name = __stringify(_name), .mode = _mode },  \
         .show   = _show,                                        \
         .store  = _store,                                       \
 }
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 7d5d1ec95c2e..be8228e50a27 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -19,10 +19,15 @@ struct kobject;
 struct module;
 struct nameidata;
 struct dentry;
+struct sysfs_dirent;
 
+/* FIXME
+ * The *owner field is no longer used, but leave around
+ * until the tree gets cleaned up fully.
+ */
 struct attribute {
         const char              * name;
-        struct module           * owner;
+        struct module           * owner;
         mode_t                  mode;
 };
 
@@ -39,14 +44,14 @@ struct attribute_group {
  */
 
 #define __ATTR(_name,_mode,_show,_store) { \
-        .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE },     \
+        .attr = {.name = __stringify(_name), .mode = _mode },   \
         .show   = _show,                                        \
         .store  = _store,                                       \
 }
 
 #define __ATTR_RO(_name) { \
-        .attr   = { .name = __stringify(_name), .mode = 0444, .owner = THIS_MODULE },   \
-        .show   = _name##_show, \
+        .attr   = { .name = __stringify(_name), .mode = 0444 }, \
+        .show   = _name##_show,                                 \
 }
 
 #define __ATTR_NULL { .attr = { .name = NULL } }
@@ -59,8 +64,10 @@ struct bin_attribute {
         struct attribute        attr;
         size_t                  size;
         void                    *private;
-        ssize_t (*read)(struct kobject *, char *, loff_t, size_t);
-        ssize_t (*write)(struct kobject *, char *, loff_t, size_t);
+        ssize_t (*read)(struct kobject *, struct bin_attribute *,
+                        char *, loff_t, size_t);
+        ssize_t (*write)(struct kobject *, struct bin_attribute *,
+                         char *, loff_t, size_t);
         int (*mmap)(struct kobject *, struct bin_attribute *attr,
                     struct vm_area_struct *vma);
 };
@@ -70,12 +77,16 @@ struct sysfs_ops {
         ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);
 };
 
+#define SYSFS_TYPE_MASK         0x00ff
 #define SYSFS_ROOT              0x0001
 #define SYSFS_DIR               0x0002
 #define SYSFS_KOBJ_ATTR         0x0004
 #define SYSFS_KOBJ_BIN_ATTR     0x0008
 #define SYSFS_KOBJ_LINK         0x0020
-#define SYSFS_NOT_PINNED        (SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR | SYSFS_KOBJ_LINK)
+#define SYSFS_COPY_NAME         (SYSFS_DIR | SYSFS_KOBJ_LINK)
+
+#define SYSFS_FLAG_MASK         ~SYSFS_TYPE_MASK
+#define SYSFS_FLAG_REMOVED      0x0100
 
 #ifdef CONFIG_SYSFS
 
@@ -83,13 +94,14 @@ extern int sysfs_schedule_callback(struct kobject *kobj,
                 void (*func)(void *), void *data, struct module *owner);
 
 extern int __must_check
-sysfs_create_dir(struct kobject *, struct dentry *);
+sysfs_create_dir(struct kobject *kobj, struct sysfs_dirent *shadow_parent_sd);
 
 extern void
 sysfs_remove_dir(struct kobject *);
 
 extern int __must_check
-sysfs_rename_dir(struct kobject *, struct dentry *, const char *new_name);
+sysfs_rename_dir(struct kobject *kobj, struct sysfs_dirent *new_parent_sd,
+                 const char *new_name);
 
 extern int __must_check
 sysfs_move_dir(struct kobject *, struct kobject *);
@@ -129,8 +141,8 @@ void sysfs_notify(struct kobject * k, char *dir, char *attr);
 
 extern int sysfs_make_shadowed_dir(struct kobject *kobj,
         void * (*follow_link)(struct dentry *, struct nameidata *));
-extern struct dentry *sysfs_create_shadow_dir(struct kobject *kobj);
-extern void sysfs_remove_shadow_dir(struct dentry *dir);
+extern struct sysfs_dirent *sysfs_create_shadow_dir(struct kobject *kobj);
+extern void sysfs_remove_shadow_dir(struct sysfs_dirent *shadow_sd);
 
 extern int __must_check sysfs_init(void);
 
@@ -142,7 +154,8 @@ static inline int sysfs_schedule_callback(struct kobject *kobj,
         return -ENOSYS;
 }
 
-static inline int sysfs_create_dir(struct kobject * k, struct dentry *shadow)
+static inline int sysfs_create_dir(struct kobject *kobj,
+                                   struct sysfs_dirent *shadow_parent_sd)
 {
         return 0;
 }
@@ -152,9 +165,9 @@ static inline void sysfs_remove_dir(struct kobject * k)
         ;
 }
 
-static inline int sysfs_rename_dir(struct kobject * k,
-                                        struct dentry *new_parent,
-                                        const char *new_name)
+static inline int sysfs_rename_dir(struct kobject *kobj,
+                                   struct sysfs_dirent *new_parent_sd,
+                                   const char *new_name)
 {
         return 0;
 }