timekeeping: Make fast accessors return 0 before timekeeping is initialized

printk timestamps will be extended to include mono and boot time by using
the fast timekeeping accessors ktime_get_mono|boot_fast_ns().  The
functions can return garbage before timekeeping is initialized resulting in
garbage timestamps.

Initialize the fast timekeepers with dummy clocks which guarantee a 0
readout up to timekeeping_init().

Suggested-by: Peter Zijlstra <[email protected]>
Signed-off-by: Prarit Bhargava <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: John Stultz <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions