| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | */ |
| 14 | extern int pvclock_gtod_register_notifier(struct notifier_block *nb); |
| 15 | extern int pvclock_gtod_unregister_notifier(struct notifier_block *nb); |
| 16 | |
| 17 | #endif /* _PVCLOCK_GTOD_H */ |