aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/pvclock_gtod.h
blob: a71d2dbd36108118f9bde41139b3835f230489ab (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
#ifndef _PVCLOCK_GTOD_H
#define _PVCLOCK_GTOD_H

#include <linux/notifier.h>

/*
 * The pvclock gtod notifier is called when the system time is updated
 * and is used to keep guest time synchronized with host time.
 *
 * The 'action' parameter in the notifier function is false (0), or
 * true (non-zero) if system time was stepped.
 */
extern int pvclock_gtod_register_notifier(struct notifier_block *nb);
extern int pvclock_gtod_unregister_notifier(struct notifier_block *nb);

#endif /* _PVCLOCK_GTOD_H */