From: Arnd Bergmann <arnd@arndb.de>
To: Paul Mackerras <paulus@samba.org>
Cc: linux-arch@vger.kernel.org, akpm@linux-foundation.org,
tglx@linutronix.de, Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [RFC] remove bogus CLOCK_TICK_RATE definitions
Date: Thu, 14 May 2009 01:12:59 +0200 [thread overview]
Message-ID: <200905140113.00018.arnd@arndb.de> (raw)
In-Reply-To: <18955.20578.972820.752249@cargo.ozlabs.ibm.com>
On Thursday 14 May 2009, Paul Mackerras wrote:
> Arnd Bergmann writes:
>
> > PowerPC actually has a number of different time base values
> > per architecture, but maybe 1024000 is a common divisor for
> > all of them.
>
> It was more that 1024000 is a multiple of all the common HZ values.
I guess in that case powerpc falls into the same category
as ia64, i.e. it makes up a value to keep ACT_HZ from being
harmful, rather than using ACT_HZ for something helpful.
We should consequently drop the powerpc definition along
with the other bogus ones. This will also help the theoretical
CONFIG_HZ=300 case.
Arnd <><
prev parent reply other threads:[~2009-05-13 23:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-13 13:48 [RFC] remove bogus CLOCK_TICK_RATE definitions Arnd Bergmann
2009-05-13 22:57 ` Paul Mackerras
2009-05-13 23:12 ` Arnd Bergmann [this message]
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