Re: [PATCH v2 0/2] clocksource: don't suspend/resume when unused

From: Boris Brezillon
Date: Fri Jan 16 2015 - 12:45:26 EST


On Fri, 16 Jan 2015 17:57:17 +0100
Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx> wrote:

> This is a quite naive implementation to track whether a clocksource is enabled.
> I chose not to add a member in struct clocksource and use a flag instead.
>
> I found that timekeeping.c is the only consumer for clocksource and I converted
> it to use clocksource_enable and clocksource_disable.

To the whole series:

Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>

>
> Changes in v2:
> - removed the check on enable in timekeeping.c to ensure all clocksources are
> going through clocksource_enable
> - rework clocksource_enable to set CLOCK_SOURCE_USED when enable is successful
> if present
>
> Alexandre Belloni (2):
> clocksource: track usage
> clocksource: don't suspend/resume when unused
>
> include/linux/clocksource.h | 4 ++++
> kernel/time/clocksource.c | 34 ++++++++++++++++++++++++++++++++--
> kernel/time/timekeeping.c | 8 +++-----
> 3 files changed, 39 insertions(+), 7 deletions(-)
>



--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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