sdio: fix module device table definition for m68k

[linux-2.6-omap-h63xx.git] / include / linux / wait.h

diff --git a/include/linux/wait.h b/include/linux/wait.h
index b3b9048421d8489568d27f41ff1303e09ab51f37..33a2aa9e02f2ba93f9bad51a351dd30919251a7a 100644 (file)
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -79,6 +79,15 @@ struct task_struct;
 
 extern void init_waitqueue_head(wait_queue_head_t *q);
 
+#ifdef CONFIG_LOCKDEP
+# define __WAIT_QUEUE_HEAD_INIT_ONSTACK(name) \
+       ({ init_waitqueue_head(&name); name; })
+# define DECLARE_WAIT_QUEUE_HEAD_ONSTACK(name) \
+       wait_queue_head_t name = __WAIT_QUEUE_HEAD_INIT_ONSTACK(name)
+#else
+# define DECLARE_WAIT_QUEUE_HEAD_ONSTACK(name) DECLARE_WAIT_QUEUE_HEAD(name)
+#endif
+
 static inline void init_waitqueue_entry(wait_queue_t *q, struct task_struct *p)
 {
        q->flags = 0;
@@ -143,14 +152,31 @@ int FASTCALL(out_of_line_wait_on_bit(void *, int, int (*)(void *), unsigned));
 int FASTCALL(out_of_line_wait_on_bit_lock(void *, int, int (*)(void *), unsigned));
 wait_queue_head_t *FASTCALL(bit_waitqueue(void *, int));
 
-#define wake_up(x)                     __wake_up(x, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE, 1, NULL)
-#define wake_up_nr(x, nr)              __wake_up(x, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE, nr, NULL)
-#define wake_up_all(x)                 __wake_up(x, TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE, 0, NULL)
+#define wake_up(x)                     __wake_up(x, TASK_NORMAL, 1, NULL)
+#define wake_up_nr(x, nr)              __wake_up(x, TASK_NORMAL, nr, NULL)
+#define wake_up_all(x)                 __wake_up(x, TASK_NORMAL, 0, NULL)
+#define wake_up_locked(x)              __wake_up_locked((x), TASK_NORMAL)
+
 #define wake_up_interruptible(x)       __wake_up(x, TASK_INTERRUPTIBLE, 1, NULL)
 #define wake_up_interruptible_nr(x, nr)        __wake_up(x, TASK_INTERRUPTIBLE, nr, NULL)
 #define wake_up_interruptible_all(x)   __wake_up(x, TASK_INTERRUPTIBLE, 0, NULL)
-#define        wake_up_locked(x)               __wake_up_locked((x), TASK_UNINTERRUPTIBLE | TASK_INTERRUPTIBLE)
-#define wake_up_interruptible_sync(x)   __wake_up_sync((x),TASK_INTERRUPTIBLE, 1)
+#define wake_up_interruptible_sync(x)  __wake_up_sync((x), TASK_INTERRUPTIBLE, 1)
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+/*
+ * macro to avoid include hell
+ */
+#define wake_up_nested(x, s)                                           \
+do {                                                                   \
+       unsigned long flags;                                            \
+                                                                       \
+       spin_lock_irqsave_nested(&(x)->lock, flags, (s));               \
+       wake_up_locked(x);                                              \
+       spin_unlock_irqrestore(&(x)->lock, flags);                      \
+} while (0)
+#else
+#define wake_up_nested(x, s)           wake_up(x)
+#endif
 
 #define __wait_event(wq, condition)                                    \
 do {                                                                   \
@@ -336,6 +362,47 @@ do {                                                                       \
        __ret;                                                          \
 })
 
+#define __wait_event_killable(wq, condition, ret)                      \
+do {                                                                   \
+       DEFINE_WAIT(__wait);                                            \
+                                                                       \
+       for (;;) {                                                      \
+               prepare_to_wait(&wq, &__wait, TASK_KILLABLE);           \
+               if (condition)                                          \
+                       break;                                          \
+               if (!fatal_signal_pending(current)) {                   \
+                       schedule();                                     \
+                       continue;                                       \
+               }                                                       \
+               ret = -ERESTARTSYS;                                     \
+               break;                                                  \
+       }                                                               \
+       finish_wait(&wq, &__wait);                                      \
+} while (0)
+
+/**
+ * wait_event_killable - sleep until a condition gets true
+ * @wq: the waitqueue to wait on
+ * @condition: a C expression for the event to wait for
+ *
+ * The process is put to sleep (TASK_KILLABLE) until the
+ * @condition evaluates to true or a signal is received.
+ * The @condition is checked each time the waitqueue @wq is woken up.
+ *
+ * wake_up() has to be called after changing any variable that could
+ * change the result of the wait condition.
+ *
+ * The function will return -ERESTARTSYS if it was interrupted by a
+ * signal and 0 if @condition evaluated to true.
+ */
+#define wait_event_killable(wq, condition)                             \
+({                                                                     \
+       int __ret = 0;                                                  \
+       if (!(condition))                                               \
+               __wait_event_killable(wq, condition, __ret);            \
+       __ret;                                                          \
+})
+
 /*
  * Must be called with the spinlock in the wait_queue_head_t held.
  */
@@ -357,15 +424,15 @@ static inline void remove_wait_queue_locked(wait_queue_head_t *q,
 
 /*
  * These are the old interfaces to sleep waiting for an event.
- * They are racy.  DO NOT use them, use the wait_event* interfaces above.  
- * We plan to remove these interfaces during 2.7.
+ * They are racy.  DO NOT use them, use the wait_event* interfaces above.
+ * We plan to remove these interfaces.
  */
-extern void FASTCALL(sleep_on(wait_queue_head_t *q));
-extern long FASTCALL(sleep_on_timeout(wait_queue_head_t *q,
-                                     signed long timeout));
-extern void FASTCALL(interruptible_sleep_on(wait_queue_head_t *q));
-extern long FASTCALL(interruptible_sleep_on_timeout(wait_queue_head_t *q,
-                                                   signed long timeout));
+extern void sleep_on(wait_queue_head_t *q);
+extern long sleep_on_timeout(wait_queue_head_t *q,
+                                     signed long timeout);
+extern void interruptible_sleep_on(wait_queue_head_t *q);
+extern long interruptible_sleep_on_timeout(wait_queue_head_t *q,
+                                          signed long timeout);
 
 /*
  * Waitqueues which are removed from the waitqueue_head at wakeup time