1 files changed, 9 insertions, 1 deletions

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 18cf1f3e1184..ad133fcfb239 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -48,10 +48,17 @@ struct elevator_ops
 
         elevator_init_fn *elevator_init_fn;
         elevator_exit_fn *elevator_exit_fn;
+        void (*trim)(struct io_context *);
 };
 
 #define ELV_NAME_MAX    (16)
 
+struct elv_fs_entry {
+        struct attribute attr;
+        ssize_t (*show)(elevator_t *, char *);
+        ssize_t (*store)(elevator_t *, const char *, size_t);
+};
+
 /*
  * identifies an elevator type, such as AS or deadline
  */
@@ -60,7 +67,7 @@ struct elevator_type
         struct list_head list;
         struct elevator_ops ops;
         struct elevator_type *elevator_type;
-        struct kobj_type *elevator_ktype;
+        struct elv_fs_entry *elevator_attrs;
         char elevator_name[ELV_NAME_MAX];
         struct module *elevator_owner;
 };
@@ -74,6 +81,7 @@ struct elevator_queue
         void *elevator_data;
         struct kobject kobj;
         struct elevator_type *elevator_type;
+        struct mutex sysfs_lock;
 };
 
 /*