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    SubjectRe: [PATCH v4 3/8] powerpc: Fix vDSO clock_getres()
    Date
    On Mon, 2019-12-02 at 07:57:29 UTC, Christophe Leroy wrote:
    > From: Vincenzo Frascino <vincenzo.frascino@arm.com>
    >
    > 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 powerpc vdso implementation of clock_getres keeping a copy of
    > hrtimer_resolution in vdso data and using that directly.
    >
    > Fixes: a7f290dad32e ("[PATCH] powerpc: Merge vdso's and add vdso support
    > to 32 bits kernel")
    > Cc: stable@vger.kernel.org
    > Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    > Cc: Paul Mackerras <paulus@samba.org>
    > Cc: Michael Ellerman <mpe@ellerman.id.au>
    > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
    > Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
    > Acked-by: Shuah Khan <skhan@linuxfoundation.org>
    > [chleroy: changed CLOCK_REALTIME_RES to CLOCK_HRTIMER_RES]
    > Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

    Applied to powerpc fixes, thanks.

    https://git.kernel.org/powerpc/c/552263456215ada7ee8700ce022d12b0cffe4802

    cheers

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