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From: john stultz <johnstul@us.ibm.com>
To: Roman Zippel <zippel@linux-m68k.org>
Cc: Ray Lee <ray-lk@madrabbit.org>,
	linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Subject: Re: [PATCH 7/8] Remove current_tick_length()
Date: Mon, 17 Mar 2008 18:01:04 -0700	[thread overview]
Message-ID: <1205802064.28128.74.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.64.0803151812020.1791@scrub.home>


On Sat, 2008-03-15 at 18:14 +0100, Roman Zippel wrote:
> Hi,
> 
> On Sat, 15 Mar 2008, Ray Lee wrote:
> 
> > Then make the original function an inline. With -O2 it should compile
> > to exactly the same thing.
> 
> This would also defeat John's intention of keeping the value static.

Well, don't mistake me for being fanatical about it. Having the values
be static is cleaner, but if its a real performance issue, then clearly
performance wins.

I do like Ray's suggestion, and think using the inline'd function is
preferred to the raw variable, as it better establishes through use if
nothing else, the read-only nature of the value outside of ntp.

thanks
-john


  reply	other threads:[~2008-03-18  1:01 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-14 18:40 [PATCH 0/8] NTP updates zippel
2008-03-14 18:40 ` [PATCH 1/8] cleanup ntp.c zippel
2008-03-14 20:30   ` john stultz
2008-03-15  3:21     ` Roman Zippel
2008-03-14 18:40 ` [PATCH 2/8] NTP4 user space bits update zippel
2008-03-14 20:36   ` john stultz
2008-03-15  3:29     ` Roman Zippel
2008-03-14 18:40 ` [PATCH 3/8] increase time_freq resolution zippel
2008-03-14 18:40 ` [PATCH 4/8] increase time_offset resolution zippel
2008-03-14 18:40 ` [PATCH 5/8] support for TAI zippel
2008-03-14 20:55   ` john stultz
2008-03-14 18:40 ` [PATCH 6/8] Rename TICK_LENGTH_SHIFT to NTP_SCALE_SHIFT zippel
2008-03-14 18:40 ` [PATCH 7/8] Remove current_tick_length() zippel
2008-03-15  2:41   ` john stultz
2008-03-15  3:32     ` Roman Zippel
2008-03-15  3:48       ` john stultz
2008-03-15  4:18         ` Roman Zippel
2008-03-15 16:29           ` Ray Lee
2008-03-15 17:14             ` Roman Zippel
2008-03-18  1:01               ` john stultz [this message]
2008-03-26  1:53                 ` Roman Zippel
2008-03-14 18:40 ` [PATCH 8/8] handle leap second via timer zippel
2008-03-14 20:24   ` john stultz
2008-03-15  3:18     ` Roman Zippel
2008-03-17 22:18       ` Andrew Morton
2008-03-21 14:15         ` Thomas Gleixner
2008-03-14 23:03 ` [PATCH 0/8] NTP updates john stultz
2008-03-15  3:15   ` Roman Zippel

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