linux-kernel - Re: [PATCH v2 1/3] kernel/time: Add new helpers to convert ktime to/from jiffies

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Message-id: <52D4818A.3050905@samsung.com>
Date:	Tue, 14 Jan 2014 09:15:06 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Alexey Perevalov <a.perevalov@...sung.com>
Cc:	linux-kernel@...r.kernel.org, john.stultz@...aro.org,
	Anton Vorontsov <anton@...rybugs.org>, anton@...msg.org,
	kyungmin.park@...sung.com, akpm@...ux-foundation.org,
	Anton Vorontsov <anton.vorontsov@...aro.org>
Subject: Re: [PATCH v2 1/3] kernel/time: Add new helpers to convert ktime
 to/from jiffies

On 01/13/2014 07:43 PM, Alexey Perevalov wrote:
> From: Anton Vorontsov <anton@...rybugs.org>
> 
> Two new functions: jiffies_to_ktime() and ktime_to_jiffies(), we'll use
> them for timerfd deferred timers handling.
> 
> We fully reuse the logic from timespec implementations, so the functions
> are pretty straightforward.
> 
> The only tricky part is in headers: we have to include jiffies.h after
> we defined ktime_t, this is because ktime.h needs some declarations from
> jiffies.h (e.g. TICK_NSEC).
> 
> Signed-off-by: Anton Vorontsov <anton.vorontsov@...aro.org>
> Signed-off-by: Alexey Perevalov <a.perevalov@...sung.com>

Tested-by: Chanwoo Choi <cw00.choi@...sung.com>

I tested this patchset about operation of deferrable timer on user-space.

Thanks,
Chanwoo Choi

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