[PATCH v2 0/2] clocksource: don't suspend/resume when unused
Boris Brezillon
boris.brezillon at free-electrons.com
Fri Jan 16 09:45:16 PST 2015
On Fri, 16 Jan 2015 17:57:17 +0100
Alexandre Belloni <alexandre.belloni at free-electrons.com> 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 at free-electrons.com>
>
> 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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