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e0b306fe MT |
1 | #ifndef _PVCLOCK_GTOD_H |
2 | #define _PVCLOCK_GTOD_H | |
3 | ||
4 | #include <linux/notifier.h> | |
5 | ||
780427f0 DV |
6 | /* |
7 | * The pvclock gtod notifier is called when the system time is updated | |
8 | * and is used to keep guest time synchronized with host time. | |
9 | * | |
10 | * The 'action' parameter in the notifier function is false (0), or | |
11 | * true (non-zero) if system time was stepped. | |
12 | */ | |
e0b306fe MT |
13 | extern int pvclock_gtod_register_notifier(struct notifier_block *nb); |
14 | extern int pvclock_gtod_unregister_notifier(struct notifier_block *nb); | |
15 | ||
16 | #endif /* _PVCLOCK_GTOD_H */ |