From: Andrew Morton <akpm@osdl.org>
To: Joel Becker <Joel.Becker@oracle.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] hangcheck-timer: Update to 0.9.0.
Date: Tue, 12 Apr 2005 17:18:01 -0700 [thread overview]
Message-ID: <20050412171801.444df4bc.akpm@osdl.org> (raw)
In-Reply-To: <20050412235033.GI31163@ca-server1.us.oracle.com>
Joel Becker <Joel.Becker@oracle.com> wrote:
>
> +#if defined(__i386__) || defined(__x86_64__)
> +# define HAVE_MONOTONIC
> +# define TIMER_FREQ 1000000000ULL
> +#elif defined(__s390__)
> +/* FA240000 is 1 Second in the IBM time universe (Page 4-38 Principles of Op for zSeries */
> +# define TIMER_FREQ 0xFA240000ULL
> +#elif defined(__ia64__)
> +# define TIMER_FREQ ((unsigned long long)local_cpu_data->itc_freq)
> +#elif defined(__powerpc64__)
> +# define TIMER_FREQ (HZ*loops_per_jiffy)
> +#endif /* __s390__ */
It's not very important, but it would be a bit more conventional to use
CONFIG_X86, CONFIG_ARCH_S390, CONFIG_IA64 and CONFIG_PPC64 for those cases
where such an ifdef is to be used.
In the above case specifically, no ifdefs should be needed - you can simply
define CONFIG_HANGCHECK_TIMER_FREQ in arch/*/Kconfig.
next prev parent reply other threads:[~2005-04-13 0:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-12 23:50 [PATCH] hangcheck-timer: Update to 0.9.0 Joel Becker
2005-04-13 0:18 ` Andrew Morton [this message]
2005-04-13 0:38 ` Joel Becker
2005-04-13 0:47 ` Andrew Morton
2005-04-14 23:43 ` Joel Becker
[not found] <200505011707.j41H7VbY021843@hera.kernel.org>
2005-05-01 17:45 ` Arjan van de Ven
2005-05-02 8:48 ` Joel Becker
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