linux-kernel - Re: [RFC v4 22/22] timekeeping: inform clockevents about freq adjustments

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Message-ID: <877fb61p4o.fsf@gmail.com>
Date:   Wed, 24 Aug 2016 11:40:23 +0200
From:   Nicolai Stange <nicstange@...il.com>
To:     Nicolai Stange <nicstange@...il.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        John Stultz <john.stultz@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC v4 22/22] timekeeping: inform clockevents about freq adjustments

Nicolai Stange <nicstange@...il.com> writes:
> --- a/kernel/time/timekeeping.c
> +++ b/kernel/time/timekeeping.c
> @@ -1845,6 +1845,9 @@ static __always_inline void timekeeping_apply_adjustment(struct timekeeper *tk,
>  	tk->xtime_interval += interval;
>  	tk->tkr_mono.xtime_nsec -= offset;
>  	tk->ntp_error -= (interval - offset) << tk->ntp_error_shift;
> +
> +	clockevents_adjust_all_freqs(tk->tkr_mono.mult,
> +				tk->tkr_mono.clock->mult);
>  }

FYI, the kernel build robot has reported a build failure for
CONFIG_GENERIC_CLOCKEVENTS=n. 

In order to avoid unnecessary traffic, I'll only fix this up in a v5 if
you give the whole thing a go.