5 files changed, 84 insertions, 14 deletions

diff --git a/include/linux/attribute_container.h b/include/linux/attribute_container.h
index af1010b6dab7..93bfb0beb62a 100644
--- a/include/linux/attribute_container.h
+++ b/include/linux/attribute_container.h
@@ -11,10 +11,12 @@
 
 #include <linux/device.h>
 #include <linux/list.h>
+#include <linux/klist.h>
+#include <linux/spinlock.h>
 
 struct attribute_container {
         struct list_head        node;
-        struct list_head        containers;
+        struct klist            containers;
         struct class            *class;
         struct class_device_attribute **attrs;
         int (*match)(struct attribute_container *, struct device *);
@@ -62,12 +64,8 @@ int attribute_container_add_class_device_adapter(struct attribute_container *con
                                                  struct class_device *classdev);
 void attribute_container_remove_attrs(struct class_device *classdev);
 void attribute_container_class_device_del(struct class_device *classdev);
-
-
-
-
-
-
+struct attribute_container *attribute_container_classdev_to_container(struct class_device *);
+struct class_device *attribute_container_find_class_device(struct attribute_container *, struct device *);
 struct class_device_attribute **attribute_container_classdev_to_attrs(const struct class_device *classdev);
 
 #endif
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 69e047989f1c..cdaf03a14a51 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -295,7 +295,13 @@ extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int);
 extern int bio_get_nr_vecs(struct block_device *);
 extern struct bio *bio_map_user(struct request_queue *, struct block_device *,
                                 unsigned long, unsigned int, int);
+struct sg_iovec;
+extern struct bio *bio_map_user_iov(struct request_queue *,
+                                    struct block_device *,
+                                    struct sg_iovec *, int, int);
 extern void bio_unmap_user(struct bio *);
+extern struct bio *bio_map_kern(struct request_queue *, void *, unsigned int,
+                                unsigned int);
 extern void bio_set_pages_dirty(struct bio *bio);
 extern void bio_check_pages_dirty(struct bio *bio);
 extern struct bio *bio_copy_user(struct request_queue *, unsigned long, unsigned int, int);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 19bd8e7e11bf..aefa26fbae8a 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -563,10 +563,12 @@ extern void blk_sync_queue(struct request_queue *q);
 extern void __blk_stop_queue(request_queue_t *q);
 extern void blk_run_queue(request_queue_t *);
 extern void blk_queue_activity_fn(request_queue_t *, activity_fn *, void *);
-extern struct request *blk_rq_map_user(request_queue_t *, int, void __user *, unsigned int);
-extern int blk_rq_unmap_user(struct request *, struct bio *, unsigned int);
-extern int blk_execute_rq(request_queue_t *, struct gendisk *, struct request *);
-
+extern int blk_rq_map_user(request_queue_t *, struct request *, void __user *, unsigned int);
+extern int blk_rq_unmap_user(struct bio *, unsigned int);
+extern int blk_rq_map_kern(request_queue_t *, struct request *, void *, unsigned int, unsigned int);
+extern int blk_rq_map_user_iov(request_queue_t *, struct request *, struct sg_iovec *, int);
+extern int blk_execute_rq(request_queue_t *, struct gendisk *,
+                          struct request *, int);
 static inline request_queue_t *bdev_get_queue(struct block_device *bdev)
 {
         return bdev->bd_disk->queue;
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h
new file mode 100644
index 000000000000..a71123c28272
--- /dev/null
+++ b/include/linux/raid_class.h
@@ -0,0 +1,59 @@
+/*
+ */
+#include <linux/transport_class.h>
+
+struct raid_template {
+        struct transport_container raid_attrs;
+};
+
+struct raid_function_template {
+        void *cookie;
+        int (*is_raid)(struct device *);
+        void (*get_resync)(struct device *);
+        void (*get_state)(struct device *);
+};
+
+enum raid_state {
+        RAID_ACTIVE = 1,
+        RAID_DEGRADED,
+        RAID_RESYNCING,
+        RAID_OFFLINE,
+};
+
+struct raid_data {
+        struct list_head component_list;
+        int component_count;
+        int level;
+        enum raid_state state;
+        int resync;
+};
+
+#define DEFINE_RAID_ATTRIBUTE(type, attr)                                     \
+static inline void                                                            \
+raid_set_##attr(struct raid_template *r, struct device *dev, type value) {    \
+        struct class_device *cdev =                                           \
+                attribute_container_find_class_device(&r->raid_attrs.ac, dev);\
+        struct raid_data *rd;                                                 \
+        BUG_ON(!cdev);                                                        \
+        rd = class_get_devdata(cdev);                                         \
+        rd->attr = value;                                                     \
+}                                                                             \
+static inline type                                                            \
+raid_get_##attr(struct raid_template *r, struct device *dev) {                \
+        struct class_device *cdev =                                           \
+                attribute_container_find_class_device(&r->raid_attrs.ac, dev);\
+        struct raid_data *rd;                                                 \
+        BUG_ON(!cdev);                                                        \
+        rd = class_get_devdata(cdev);                                         \
+        return rd->attr;                                                      \
+}
+
+DEFINE_RAID_ATTRIBUTE(int, level)
+DEFINE_RAID_ATTRIBUTE(int, resync)
+DEFINE_RAID_ATTRIBUTE(enum raid_state, state)
+        
+struct raid_template *raid_class_attach(struct raid_function_template *);
+void raid_class_release(struct raid_template *);
+
+void raid_component_add(struct raid_template *, struct device *,
+                        struct device *);
diff --git a/include/linux/transport_class.h b/include/linux/transport_class.h
index 87d98d1faefb..1d6cc22e5f42 100644
--- a/include/linux/transport_class.h
+++ b/include/linux/transport_class.h
@@ -12,11 +12,16 @@
 #include <linux/device.h>
 #include <linux/attribute_container.h>
 
+struct transport_container;
+
 struct transport_class {
         struct class class;
-        int (*setup)(struct device *);
-        int (*configure)(struct device *);
-        int (*remove)(struct device *);
+        int (*setup)(struct transport_container *, struct device *,
+                     struct class_device *);
+        int (*configure)(struct transport_container *, struct device *,
+                         struct class_device *);
+        int (*remove)(struct transport_container *, struct device *,
+                      struct class_device *);
 };
 
 #define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg)                   \