LXR linux/include/linux/pvclock

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _PVCLOCK_GTOD_H
   3#define _PVCLOCK_GTOD_H
   4
   5#include <linux/notifier.h>
   6
   7/*
   8 * The pvclock gtod notifier is called when the system time is updated
   9 * and is used to keep guest time synchronized with host time.
  10 *
  11 * The 'action' parameter in the notifier function is false (0), or
  12 * true (non-zero) if system time was stepped.
  13 */
  14extern int pvclock_gtod_register_notifier(struct notifier_block *nb);
  15extern int pvclock_gtod_unregister_notifier(struct notifier_block *nb);
  16
  17#endif /* _PVCLOCK_GTOD_H */
  18