Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...

[~andy/linux] / arch / x86 / kernel / pvclock.c

diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 2cb9470ea85bac67b42c1fb6decdd26c35230041..a16bae3f83b37ab189dbe2a443f1461a075a6ae7 100644 (file)
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -128,46 +128,7 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock,
        set_normalized_timespec(ts, now.tv_sec, now.tv_nsec);
 }
 
-static struct pvclock_vsyscall_time_info *pvclock_vdso_info;
-
-static struct pvclock_vsyscall_time_info *
-pvclock_get_vsyscall_user_time_info(int cpu)
-{
-       if (!pvclock_vdso_info) {
-               BUG();
-               return NULL;
-       }
-
-       return &pvclock_vdso_info[cpu];
-}
-
-struct pvclock_vcpu_time_info *pvclock_get_vsyscall_time_info(int cpu)
-{
-       return &pvclock_get_vsyscall_user_time_info(cpu)->pvti;
-}
-
 #ifdef CONFIG_X86_64
-static int pvclock_task_migrate(struct notifier_block *nb, unsigned long l,
-                               void *v)
-{
-       struct task_migration_notifier *mn = v;
-       struct pvclock_vsyscall_time_info *pvti;
-
-       pvti = pvclock_get_vsyscall_user_time_info(mn->from_cpu);
-
-       /* this is NULL when pvclock vsyscall is not initialized */
-       if (unlikely(pvti == NULL))
-               return NOTIFY_DONE;
-
-       pvti->migrate_count++;
-
-       return NOTIFY_DONE;
-}
-
-static struct notifier_block pvclock_migrate = {
-       .notifier_call = pvclock_task_migrate,
-};
-
 /*
  * Initialize the generic pvclock vsyscall state.  This will allocate
  * a/some page(s) for the per-vcpu pvclock information, set up a
@@ -181,17 +142,12 @@ int __init pvclock_init_vsyscall(struct pvclock_vsyscall_time_info *i,
 
        WARN_ON (size != PVCLOCK_VSYSCALL_NR_PAGES*PAGE_SIZE);
 
-       pvclock_vdso_info = i;
-
        for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) {
                __set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx,
                             __pa(i) + (idx*PAGE_SIZE),
                             PAGE_KERNEL_VVAR);
        }
 
-
-       register_task_migration_notifier(&pvclock_migrate);
-
        return 0;
 }
 #endif