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

[safe/jmp/linux-2.6] / include / linux / workqueue.h

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 14d4712..13e1adf 100644 (file)
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -41,6 +41,11 @@ struct delayed_work {
        struct timer_list timer;
 };
 
+static inline struct delayed_work *to_delayed_work(struct work_struct *work)
+{
+       return container_of(work, struct delayed_work, work);
+}
+
 struct execute_work {
        struct work_struct work;
 };
@@ -118,12 +123,24 @@ struct execute_work {
                init_timer(&(_work)->timer);                    \
        } while (0)
 
+#define INIT_DELAYED_WORK_ON_STACK(_work, _func)               \
+       do {                                                    \
+               INIT_WORK(&(_work)->work, (_func));             \
+               init_timer_on_stack(&(_work)->timer);           \
+       } while (0)
+
 #define INIT_DELAYED_WORK_DEFERRABLE(_work, _func)                     \
        do {                                                    \
                INIT_WORK(&(_work)->work, (_func));             \
                init_timer_deferrable(&(_work)->timer);         \
        } while (0)
 
+#define INIT_DELAYED_WORK_ON_STACK(_work, _func)               \
+       do {                                                    \
+               INIT_WORK(&(_work)->work, (_func));             \
+               init_timer_on_stack(&(_work)->timer);           \
+       } while (0)
+
 /**
  * work_pending - Find out whether a work item is currently pending
  * @work: The work item in question
@@ -149,11 +166,11 @@ struct execute_work {
 
 extern struct workqueue_struct *
 __create_workqueue_key(const char *name, int singlethread,
-                      int freezeable, struct lock_class_key *key,
+                      int freezeable, int rt, struct lock_class_key *key,
                       const char *lock_name);
 
 #ifdef CONFIG_LOCKDEP
-#define __create_workqueue(name, singlethread, freezeable)     \
+#define __create_workqueue(name, singlethread, freezeable, rt) \
 ({                                                             \
        static struct lock_class_key __key;                     \
        const char *__lock_name;                                \
@@ -164,17 +181,19 @@ __create_workqueue_key(const char *name, int singlethread,
                __lock_name = #name;                            \
                                                                \
        __create_workqueue_key((name), (singlethread),          \
-                              (freezeable), &__key,            \
+                              (freezeable), (rt), &__key,      \
                               __lock_name);                    \
 })
 #else
-#define __create_workqueue(name, singlethread, freezeable)     \
-       __create_workqueue_key((name), (singlethread), (freezeable), NULL, NULL)
+#define __create_workqueue(name, singlethread, freezeable, rt) \
+       __create_workqueue_key((name), (singlethread), (freezeable), (rt), \
+                              NULL, NULL)
 #endif
 
-#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)
+#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)
 
 extern void destroy_workqueue(struct workqueue_struct *wq);
 
@@ -201,6 +220,8 @@ extern int keventd_up(void);
 extern void init_workqueues(void);
 int execute_in_process_context(work_func_t fn, struct execute_work *);
 
+extern int flush_work(struct work_struct *work);
+
 extern int cancel_work_sync(struct work_struct *work);
 
 /*
@@ -236,4 +257,12 @@ void cancel_rearming_delayed_work(struct delayed_work *work)
        cancel_delayed_work_sync(work);
 }
 
+#ifndef CONFIG_SMP
+static inline long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg)
+{
+       return fn(arg);
+}
+#else
+long work_on_cpu(unsigned int cpu, long (*fn)(void *), void *arg);
+#endif /* CONFIG_SMP */
 #endif