Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild

[linux-2.6-microblaze.git] / kernel / timer.c

diff --git a/kernel/timer.c b/kernel/timer.c
index 5a89602..396a3c0 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1208,7 +1208,7 @@ unsigned long wall_jiffies = INITIAL_JIFFIES;
  * playing with xtime and avenrun.
  */
 #ifndef ARCH_HAVE_XTIME_LOCK
-seqlock_t xtime_lock __cacheline_aligned_in_smp = SEQLOCK_UNLOCKED;
+__cacheline_aligned_in_smp DEFINE_SEQLOCK(xtime_lock);
 
 EXPORT_SYMBOL(xtime_lock);
 #endif
@@ -1368,7 +1368,7 @@ asmlinkage long sys_getegid(void)
 
 static void process_timeout(unsigned long __data)
 {
-       wake_up_process((task_t *)__data);
+       wake_up_process((struct task_struct *)__data);
 }
 
 /**
@@ -1559,6 +1559,13 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info)
        return 0;
 }
 
+/*
+ * lockdep: we want to track each per-CPU base as a separate lock-class,
+ * but timer-bases are kmalloc()-ed, so we need to attach separate
+ * keys to them:
+ */
+static struct lock_class_key base_lock_keys[NR_CPUS];
+
 static int __devinit init_timers_cpu(int cpu)
 {
        int j;
@@ -1594,6 +1601,8 @@ static int __devinit init_timers_cpu(int cpu)
        }
 
        spin_lock_init(&base->lock);
+       lockdep_set_class(&base->lock, base_lock_keys + cpu);
+
        for (j = 0; j < TVN_SIZE; j++) {
                INIT_LIST_HEAD(base->tv5.vec + j);
                INIT_LIST_HEAD(base->tv4.vec + j);