linux-kernel - Re: [PATCH v2 net-next] net: convert lls to use time_in

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Message-ID: <51D337D0.1080901@linux.intel.com>
Date:	Tue, 02 Jul 2013 23:28:00 +0300
From:	Eliezer Tamir <eliezer.tamir@...ux.intel.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
CC:	David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, willemb@...gle.com, erdnetdev@...il.com,
	andi@...stfloor.org, hpa@...or.com, devel-lists@...yps.com,
	eliezer@...ir.org.il
Subject: Re: [PATCH v2 net-next] net: convert lls to use time_in_range()

On 02/07/2013 23:10, Ben Hutchings wrote:
> On Tue, 2013-07-02 at 12:49 +0300, Eliezer Tamir wrote:
>> Time in range will fail safely if we move to a different cpu with an
>> extremely large clock skew.
>> Add time_in_range64() and convert lls to use it.
>>
>> Signed-off-by: Eliezer Tamir <eliezer.tamir@...ux.intel.com>
>> ---
>> v1->v2
>> fixed double call to sched_clock() in can_poll_ll(), checkpatchisms

>> +#define time_in_range64(a, b, c) \
>> +	(time_after_eq64(a, b) && \
>> +	 time_before_eq64(a, c))
> [...]
>
> Why not make this an inline function, so the caller doesn't need to
> worry about repeated evaluation?

I was following the conventions in jiffies.h
(well almost, I did add a few spaces to make checkpatch happy)
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