Re: [PATCH 1/2] ARM: VDSO: fix coarse clock monotonicity regression

2015-08-10 Thread Will Deacon
On Sat, Aug 08, 2015 at 03:03:22AM +0100, Nathan Lynch wrote: > Since 906c55579a63 ("timekeeping: Copy the shadow-timekeeper over the > real timekeeper last") it has become possible on ARM to: > > - Obtain a CLOCK_MONOTONIC_COARSE or CLOCK_REALTIME_COARSE timestamp > via syscall. > -

Re: [PATCH 1/2] ARM: VDSO: fix coarse clock monotonicity regression

2015-08-10 Thread Will Deacon
On Sat, Aug 08, 2015 at 03:03:22AM +0100, Nathan Lynch wrote: Since 906c55579a63 (timekeeping: Copy the shadow-timekeeper over the real timekeeper last) it has become possible on ARM to: - Obtain a CLOCK_MONOTONIC_COARSE or CLOCK_REALTIME_COARSE timestamp via syscall. - Subsequently

[PATCH 1/2] ARM: VDSO: fix coarse clock monotonicity regression

2015-08-07 Thread Nathan Lynch
Since 906c55579a63 ("timekeeping: Copy the shadow-timekeeper over the real timekeeper last") it has become possible on ARM to: - Obtain a CLOCK_MONOTONIC_COARSE or CLOCK_REALTIME_COARSE timestamp via syscall. - Subsequently obtain a timestamp for the same clock ID via VDSO which predates the

[PATCH 1/2] ARM: VDSO: fix coarse clock monotonicity regression

2015-08-07 Thread Nathan Lynch
Since 906c55579a63 (timekeeping: Copy the shadow-timekeeper over the real timekeeper last) it has become possible on ARM to: - Obtain a CLOCK_MONOTONIC_COARSE or CLOCK_REALTIME_COARSE timestamp via syscall. - Subsequently obtain a timestamp for the same clock ID via VDSO which predates the