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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-08-14 15:47:31 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2009-08-15 10:55:46 +0200 |
| commit | d4f587c67fc39e0030ddd718675e252e208da4d7 (patch) | |
| tree | 2222681c57966cc6b8404afdff3ab1a09ac7ea69 /arch/sh/kernel/time.c | |
| parent | timekeeping: Update clocksource with stop_machine (diff) | |
| download | linux-d4f587c67fc39e0030ddd718675e252e208da4d7.tar.xz linux-d4f587c67fc39e0030ddd718675e252e208da4d7.zip | |
timekeeping: Increase granularity of read_persistent_clock()
The persistent clock of some architectures (e.g. s390) have a
better granularity than seconds. To reduce the delta between the
host clock and the guest clock in a virtualized system change the
read_persistent_clock function to return a struct timespec.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Daniel Walker <dwalker@fifo99.com>
LKML-Reference: <20090814134811.013873340@de.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/sh/kernel/time.c')
| -rw-r--r-- | arch/sh/kernel/time.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c index 9b352a1e3fb4..3f4706aa975e 100644 --- a/arch/sh/kernel/time.c +++ b/arch/sh/kernel/time.c @@ -39,11 +39,9 @@ void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time; int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time; #ifdef CONFIG_GENERIC_CMOS_UPDATE -unsigned long read_persistent_clock(void) +void read_persistent_clock(struct timespec *ts) { - struct timespec tv; - rtc_sh_get_time(&tv); - return tv.tv_sec; + rtc_sh_get_time(&ts); } int update_persistent_clock(struct timespec now) |