[PATCHv3 04/27] timens: Introduce CLOCK_BOOTTIME offset

Cyrill Gorcunov gorcunov at gmail.com
Thu Apr 25 20:08:06 UTC 2019


On Thu, Apr 25, 2019 at 05:13:53PM +0100, Dmitry Safonov wrote:
> 
> diff --git a/include/linux/time_namespace.h b/include/linux/time_namespace.h
> index 8f75d34cf34a..5f0da6858b10 100644
> --- a/include/linux/time_namespace.h
> +++ b/include/linux/time_namespace.h
> @@ -48,6 +48,14 @@ static inline void timens_add_monotonic(struct timespec64 *ts)
>                  *ts = timespec64_add(*ts, ns_offsets->monotonic_time_offset);
>  }
>  
> +static inline void timens_add_boottime(struct timespec64 *ts)
> +{
> +        struct timens_offsets *ns_offsets = current->nsproxy->time_ns->offsets;
> +
> +        if (ns_offsets)
> +                *ts = timespec64_add(*ts, ns_offsets->monotonic_boottime_offset);
> +}
>
...

>  struct timens_offsets {
>  	struct timespec64  monotonic_time_offset;
> +	struct timespec64  monotonic_boottime_offset;
>  };

Guys, is not the _offset postfix here redundant? timens_offsets
already has it and ns_offsets->monotonic_boottime_offset looks
too much.

static always_inline current_time_ns_offsets(void)
{
	return current->nsproxy->time_ns->offsets;
}

static inline void timens_add_boottime(struct timespec64 *ts)
{
	struct timens_offsets *tns_off = current_time_ns_offsets();

	if (tns_off)
		*ts = timespec64_add(*ts, tns_off->monotonic_boottime);
}

Hmm? Up to you though.


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