• John Stultz's avatar
    time: Add warning about imminent deprecation of CONFIG_GENERIC_TIME_VSYSCALL_OLD · 369adf04
    John Stultz authored
    CONFIG_GENERIC_TIME_VSYSCALL_OLD was introduced five years ago
    to allow a transition from the old vsyscall implementations to
    the new method (which simplified internal accounting and made
    timekeeping more precise).
    
    However, PPC and IA64 have yet to make the transition, despite
    in some cases me sending test patches to try to help it along.
    
    http://patches.linaro.org/patch/30501/
    http://patches.linaro.org/patch/35412/
    
    If its helpful, my last pass at the patches can be found here:
    https://git.linaro.org/people/john.stultz/linux.git dev/oldvsyscall-cleanup
    
    So I think its time to set a deadline and make it clear this
    is going away. So this patch adds warnings about this
    functionality being dropped. Likely to be in v4.15.
    
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Ingo Molnar <mingo@kernel.org>
    Cc: Miroslav Lichvar <mlichvar@redhat.com>
    Cc: Richard Cochran <richardcochran@gmail.com>
    Cc: Prarit Bhargava <prarit@redhat.com>
    Cc: Marcelo Tosatti <mtosatti@redhat.com>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Anton Blanchard <anton@samba.org>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Tony Luck <tony.luck@intel.com>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Fenghua Yu <fenghua.yu@intel.com>
    Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
    369adf04
timekeeping.c 64.7 KB