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

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Message-ID: <CALAqxLVrOMC9Ux0as37CMwoKaWZdaABxqyh2XymbE4yoy8htBQ@mail.gmail.com>
Date:   Thu, 15 Sep 2016 11:35:40 -0700
From:   John Stultz <john.stultz@...aro.org>
To:     Nicolas Pitre <nicolas.pitre@...aro.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Josh Triplett <josh@...htriplett.org>,
        Richard Cochran <richardcochran@...il.com>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3) posix-timers: make it configurable

On Thu, Sep 15, 2016 at 11:28 AM, Nicolas Pitre
<nicolas.pitre@...aro.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..

thanks
-john