tree 2222681c57966cc6b8404afdff3ab1a09ac7ea69
parent 75c5158f70c065b9704b924503d96e8297838f79
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1250257651 +0200
committer Thomas Gleixner <tglx@linutronix.de> 1250326546 +0200

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>