Re: [PATCH v2 0/3] Deferrable timers support for timerfd API

[Alexey Perevalov <a.perevalov@samsung.com>]

Hello all,

one remark - timerfd is not documented in linux Documentation directory 
at all.
I think it's better to have such description.


On 01/13/2014 02:43 PM, Alexey Perevalov wrote:
> Hello dear community.
>
> This is reworked patch set of original Anton's Vorontsov
> proposal regarding unified deferrable timers in the user space.
> http://lwn.net/Articles/514707/
>
>
> I decided to resubmit it due we found it usefull for us too.
>
> timerfd was modified since Anton's commit, Alarm support was added.
> This isn't only rebase. Anton's previous version used deferrable timer
> in couple with hrtimer. This version uses only deferrable timer. It
> mean the behaviour of overrun number is different.
> e.g. if you don't poll one second timer for a 10 seconds - you'll get
> 10 overruns with hrtimer, but for deferrable timer it could be another value.
>
> Anton Vorontsov (3):
>    kernel/time: Add new helpers to convert ktime to/from jiffies
>    timerfd: Factor out timer-type unspecific timerfd_expire()
>    timerfd: Add support for deferrable timers
>
>   fs/timerfd.c            |  127 +++++++++++++++++++++++++++++++++++------------
>   include/linux/jiffies.h |    4 +-
>   include/linux/ktime.h   |    3 +-
>   include/linux/timerfd.h |    4 +-
>   kernel/time.c           |   23 +++++++++
>   5 files changed, 126 insertions(+), 35 deletions(-)
>


-- 
Best regards,
Alexey Perevalov