4 files changed, 61 insertions, 7 deletions

diff --git a/include/linux/attribute_container.h b/include/linux/attribute_container.h
index ee83fe64a102..93bfb0beb62a 100644
--- a/include/linux/attribute_container.h
+++ b/include/linux/attribute_container.h
@@ -11,12 +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;
-        spinlock_t              containers_lock;
+        struct klist            containers;
         struct class            *class;
         struct class_device_attribute **attrs;
         int (*match)(struct attribute_container *, struct device *);
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/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index b24d224281bd..fabd879c2f2e 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -35,9 +35,6 @@ static inline int scsi_sense_valid(struct scsi_sense_hdr *sshdr)
 }
 
 
-extern void scsi_add_timer(struct scsi_cmnd *, int,
-                void (*)(struct scsi_cmnd *));
-extern int scsi_delete_timer(struct scsi_cmnd *);
 extern void scsi_report_bus_reset(struct Scsi_Host *, int);
 extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
 extern int scsi_block_when_processing_errors(struct scsi_device *);
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index ac1b6125e3ae..916144be208b 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -467,12 +467,10 @@ struct Scsi_Host {
         struct task_struct    * ehandler;  /* Error recovery thread. */
         struct semaphore      * eh_wait;   /* The error recovery thread waits
                                               on this. */
-        struct completion     * eh_notify; /* wait for eh to begin or end */
         struct semaphore      * eh_action; /* Wait for specific actions on the
                                           host. */
         unsigned int            eh_active:1; /* Indicates the eh thread is awake and active if
                                           this is true. */
-        unsigned int            eh_kill:1; /* set when killing the eh thread */
         wait_queue_head_t       host_wait;
         struct scsi_host_template *hostt;
         struct scsi_transport_template *transportt;