On 5/28/19 6:04 AM, Vincenzo Frascino wrote:
clock_getres in the vDSO library has to preserve the same behaviour of posix_get_hrtimer_res().
In particular, posix_get_hrtimer_res() does: sec = 0; ns = hrtimer_resolution; and hrtimer_resolution depends on the enablement of the high resolution timers that can happen either at compile or at run time.
Fix the s390 vdso implementation of clock_getres keeping a copy of hrtimer_resolution in vdso data and using that directly.
Cc: Martin Schwidefsky schwidefsky@de.ibm.com Cc: Heiko Carstens heiko.carstens@de.ibm.com Signed-off-by: Vincenzo Frascino vincenzo.frascino@arm.com Acked-by: Martin Schwidefsky schwidefsky@de.ibm.com
Note: This patch is independent from the others in this series, hence it can be merged singularly by the s390 maintainers.
Acked-by: Shuah Khan skhan@linuxfoundation.org
thanks, -- Shuah