workqueue: kill RT workqueue

With stop_machine() converted to use cpu_stop, RT workqueue doesn't
have any user left.  Kill RT workqueue support.

Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 9 insertions, 11 deletions

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 9466e860d8c2..0697946c66a1 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -181,12 +181,11 @@ static inline void destroy_work_on_stack(struct work_struct *work) { }
 
 
 extern struct workqueue_struct *
-__create_workqueue_key(const char *name, int singlethread,
-                       int freezeable, int rt, struct lock_class_key *key,
-                       const char *lock_name);
+__create_workqueue_key(const char *name, int singlethread, int freezeable,
+                       struct lock_class_key *key, const char *lock_name);
 
 #ifdef CONFIG_LOCKDEP
-#define __create_workqueue(name, singlethread, freezeable, rt)  \
+#define __create_workqueue(name, singlethread, freezeable)      \
 ({                                                              \
         static struct lock_class_key __key;                     \
         const char *__lock_name;                                \
@@ -197,19 +196,18 @@ __create_workqueue_key(const char *name, int singlethread,
                 __lock_name = #name;                            \
                                                                 \
         __create_workqueue_key((name), (singlethread),          \
-                               (freezeable), (rt), &__key,      \
+                               (freezeable), &__key,            \
                                __lock_name);                    \
 })
 #else
-#define __create_workqueue(name, singlethread, freezeable, rt)  \
-        __create_workqueue_key((name), (singlethread), (freezeable), (rt), \
+#define __create_workqueue(name, singlethread, freezeable)      \
+        __create_workqueue_key((name), (singlethread), (freezeable), \
                                NULL, NULL)
 #endif
 
-#define create_workqueue(name) __create_workqueue((name), 0, 0, 0)
-#define create_rt_workqueue(name) __create_workqueue((name), 0, 0, 1)
-#define create_freezeable_workqueue(name) __create_workqueue((name), 1, 1, 0)
-#define create_singlethread_workqueue(name) __create_workqueue((name), 1, 0, 0)
+#define create_workqueue(name) __create_workqueue((name), 0, 0)
+#define create_freezeable_workqueue(name) __create_workqueue((name), 1, 1)
+#define create_singlethread_workqueue(name) __create_workqueue((name), 1, 0)
 
 extern void destroy_workqueue(struct workqueue_struct *wq);