Re: [PATCH v3) posix-timers: make it configurable

From	Nicolas Pitre <nicolas.pitre@linaro.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3) posix-timers: make it configurable
Date	2016-09-15 20:40 +0200
Message-ID	<shJJL-28Z-3@gated-at.bofh.it> (permalink)
References	<shvQt-1BE-7@gated-at.bofh.it> <shJqp-22F-5@gated-at.bofh.it> <shJA5-25R-3@gated-at.bofh.it> <shJJL-28Z-5@gated-at.bofh.it>
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On Thu, 15 Sep 2016, John Stultz wrote:

> On Thu, Sep 15, 2016 at 11:28 AM, Nicolas Pitre
> <nicolas.pitre@linaro.org> wrote:
> > On Thu, 15 Sep 2016, John Stultz wrote:
> >
> >> > diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
> >> > index 62824f2fe4..62504a2c9f 100644
> >> > --- a/kernel/time/Kconfig
> >> > +++ b/kernel/time/Kconfig
> >> > @@ -195,3 +195,21 @@ config HIGH_RES_TIMERS
> >> >
> >> >  endmenu
> >> >  endif
> >> > +
> >> > +config POSIX_TIMERS
> >> > +       bool "Posix Clocks & timers" if EMBEDDED
> >> > +       default y
> >> > +       help
> >> > +         This includes native support for POSIX timers to the kernel.
> >> > +         Most embedded systems may have no use for them and therefore they
> >> > +         can be configured out to reduce the size of the kernel image.
> >> > +
> >> > +         When this option is disabled, the following syscalls won't be
> >> > +         available: timer_create, timer_gettime: timer_getoverrun,
> >> > +         timer_settime, timer_delete, clock_adjtime. Furthermore, the
> >> > +         clock_settime, clock_gettime, clock_getres and clock_nanosleep
> >> > +         syscalls will be limited to CLOCK_REALTIME and CLOCK_MONOTONIC
> >> > +         only.
> >> > +
> >> > +         If unsure say y.
> >> >
> >>
> >> One thought.. Should this go under:
> >>     Configure standard kernel features (expert users)
> >> rather then a top level item under  General Setup ?
> >
> > Hmmm... probably yes.
> >
> > Do you need that I repost the patch?
> 
> I can see about moving it..

OK.

Making it conditional on EXPERT rather than EMBEDDED would also be more 
inline with the other similar options there.


Nicolas

Thread

[PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-15 05:50 +0200
  Re: [PATCH v3) posix-timers: make it configurable John Stultz <john.stultz@linaro.org> - 2016-09-15 19:50 +0200
    Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-15 20:00 +0200
  Re: [PATCH v3) posix-timers: make it configurable John Stultz <john.stultz@linaro.org> - 2016-09-15 20:20 +0200
    Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-15 20:30 +0200
      Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-15 20:40 +0200
        Re: [PATCH v3) posix-timers: make it configurable John Stultz <john.stultz@linaro.org> - 2016-09-15 20:50 +0200
          Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-15 21:40 +0200
            Re: [PATCH v3) posix-timers: make it configurable John Stultz <john.stultz@linaro.org> - 2016-09-15 22:00 +0200
              Re: [PATCH v3) posix-timers: make it configurable Richard Cochran <richardcochran@gmail.com> - 2016-09-15 23:10 +0200
                Re: [PATCH v3) posix-timers: make it configurable Josh Triplett <josh@joshtriplett.org> - 2016-09-15 23:20 +0200
                Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-15 23:40 +0200
                Re: [PATCH v3) posix-timers: make it configurable Josh Triplett <josh@joshtriplett.org> - 2016-09-16 00:00 +0200
                Re: [PATCH v3) posix-timers: make it configurable Richard Cochran <richardcochran@gmail.com> - 2016-09-16 09:30 +0200
                Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-17 05:00 +0200
                Re: [PATCH v3) posix-timers: make it configurable Richard Cochran <richardcochran@gmail.com> - 2016-09-18 16:40 +0200
                Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-18 19:00 +0200
                Re: [PATCH v3) posix-timers: make it configurable Richard Cochran <richardcochran@gmail.com> - 2016-09-18 20:30 +0200
                Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-18 21:00 +0200
                Re: [PATCH v3) posix-timers: make it configurable Richard Cochran <richardcochran@gmail.com> - 2016-09-18 22:30 +0200
                Re: [PATCH v3) posix-timers: make it configurable Nicolas Pitre <nicolas.pitre@linaro.org> - 2016-09-18 22:40 +0200
                Re: [PATCH v3) posix-timers: make it configurable Richard Cochran <richardcochran@gmail.com> - 2016-09-18 23:20 +0200
              Re: [PATCH v3) posix-timers: make it configurable Richard Cochran <richardcochran@gmail.com> - 2016-09-15 23:30 +0200
      Re: [PATCH v3) posix-timers: make it configurable John Stultz <john.stultz@linaro.org> - 2016-09-15 20:40 +0200
  Re: [PATCH v3) posix-timers: make it configurable kbuild test robot <lkp@intel.com> - 2016-09-16 16:40 +0200

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