Merge git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt

* git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt:
  clocksource: make clocksource watchdog cycle through online CPUs
  Documentation: move timer related documentation to a single place
  clockevents: optimise tick_nohz_stop_sched_tick() a bit
  locking: remove unused double_spin_lock()
  hrtimers: simplify lockdep handling
  timers: simplify lockdep handling
  posix-timers: fix shadowed variables
  timer_list: add annotations to workqueue.c
  hrtimer: use nanosleep specific restart_block fields
  hrtimer: add nanosleep specific restart_block member

3 files changed, 12 insertions, 39 deletions

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 1ad56a7b2f74..56f3236da829 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -173,7 +173,6 @@ struct hrtimer_clock_base {
  * struct hrtimer_cpu_base - the per cpu clock bases
  * @lock:               lock protecting the base and associated clock bases
  *                      and timers
- * @lock_key:           the lock_class_key for use with lockdep
  * @clock_base:         array of clock bases for this cpu
  * @curr_timer:         the timer which is executing a callback right now
  * @expires_next:       absolute time of the next event which was scheduled
@@ -189,7 +188,6 @@ struct hrtimer_clock_base {
  */
 struct hrtimer_cpu_base {
         spinlock_t                      lock;
-        struct lock_class_key           lock_key;
         struct hrtimer_clock_base       clock_base[HRTIMER_MAX_CLOCK_BASES];
         struct list_head                cb_pending;
 #ifdef CONFIG_HIGH_RES_TIMERS
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 1129ee0a7180..d311a090fae7 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -296,43 +296,6 @@ do {						\
 })
 
 /*
- * Locks two spinlocks l1 and l2.
- * l1_first indicates if spinlock l1 should be taken first.
- */
-static inline void double_spin_lock(spinlock_t *l1, spinlock_t *l2,
-                                    bool l1_first)
-        __acquires(l1)
-        __acquires(l2)
-{
-        if (l1_first) {
-                spin_lock(l1);
-                spin_lock(l2);
-        } else {
-                spin_lock(l2);
-                spin_lock(l1);
-        }
-}
-
-/*
- * Unlocks two spinlocks l1 and l2.
- * l1_taken_first indicates if spinlock l1 was taken first and therefore
- * should be released after spinlock l2.
- */
-static inline void double_spin_unlock(spinlock_t *l1, spinlock_t *l2,
-                                      bool l1_taken_first)
-        __releases(l1)
-        __releases(l2)
-{
-        if (l1_taken_first) {
-                spin_unlock(l2);
-                spin_unlock(l1);
-        } else {
-                spin_unlock(l1);
-                spin_unlock(l2);
-        }
-}
-
-/*
  * Pull the atomic_t declaration:
  * (asm-mips/atomic.h needs above definitions)
  */
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 421323e5a2d6..accd7bad35b0 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -9,6 +9,9 @@
 
 #include <linux/types.h>
 
+struct timespec;
+struct compat_timespec;
+
 /*
  * System call restart block.
  */
@@ -26,6 +29,15 @@ struct restart_block {
                         u32 bitset;
                         u64 time;
                 } futex;
+                /* For nanosleep */
+                struct {
+                        clockid_t index;
+                        struct timespec __user *rmtp;
+#ifdef CONFIG_COMPAT
+                        struct compat_timespec __user *compat_rmtp;
+#endif
+                        u64 expires;
+                } nanosleep;
         };
 };