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From: Andi Kleen <ak@suse.de>
To: jbohac@suse.cz
Cc: linux-kernel@vger.kernel.org, Vojtech Pavlik <vojtech@suse.cz>,
	ssouhlal@freebsd.org, arjan@infradead.org, tglx@linutronix.de,
	johnstul@us.ibm.com, zippel@linux-m68k.org, andrea@suse.de
Subject: Re: [patch 7/9] Adapt the time initialization code
Date: Thu, 1 Feb 2007 12:26:33 +0100	[thread overview]
Message-ID: <200702011226.33339.ak@suse.de> (raw)
In-Reply-To: <20070201103754.041245000@jet.suse.cz>


> +extern void time_initialize_cpu(void);

Never put externs into .c files. Multiple occurrences.


> +void time_initialize_cpu(void *info)
> +{
> +	unsigned long flags;
> +	int cpu = smp_processor_id();

Are you sure this can never preempt? 

> +	/* FIXME: what speed does the cpu really start at; I doubt cpu_khz is right at this point ??!!!

It should be. It comes from measurements. Unless the CPU changes frequency
behind the kernel's back, but there is nothing that can be done then.

-Andio

  reply	other threads:[~2007-02-01 11:36 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-01  9:59 [patch 0/9] x86_64: reliable TSC-based gettimeofday jbohac
2007-02-01  9:59 ` [patch 1/9] Fix HPET init race jbohac
2007-02-02  2:34   ` Andrew Morton
2007-02-06 16:44     ` Jiri Bohac
2007-02-07  0:12       ` Andrew Morton
2007-02-10 12:31         ` Andi Kleen
2007-07-26 20:58           ` Robin Holt
2007-02-01  9:59 ` [patch 2/9] Remove the support for the VXTIME_PMTMR timer mode jbohac
2007-02-01 11:13   ` Andi Kleen
2007-02-01 13:13     ` Jiri Bohac
2007-02-01 13:13       ` Andi Kleen
2007-02-01 13:59         ` Jiri Bohac
2007-02-01 14:18           ` Andi Kleen
2007-02-01  9:59 ` [patch 3/9] Remove the support for the VXTIME_HPET " jbohac
2007-02-01  9:59 ` [patch 4/9] Remove the TSC synchronization on SMP machines jbohac
2007-02-01 11:14   ` Andi Kleen
2007-02-01 13:17     ` Jiri Bohac
2007-02-01 15:16       ` Vojtech Pavlik
2007-02-02  7:14         ` Andi Kleen
2007-02-13  0:34           ` Christoph Lameter
2007-02-13  6:40             ` Arjan van de Ven
2007-02-13  8:28               ` Andi Kleen
2007-02-13  8:41                 ` Arjan van de Ven
2007-02-13 17:09               ` Christoph Lameter
2007-02-13 17:20                 ` Andi Kleen
2007-02-13 22:18                   ` Vojtech Pavlik
2007-02-13 22:38                     ` Andrea Arcangeli
2007-02-14  6:59                       ` Vojtech Pavlik
2007-02-13 23:55                     ` Christoph Lameter
2007-02-14  0:18                   ` Paul Mackerras
2007-02-14  0:25                     ` john stultz
2007-02-02  7:13       ` Andi Kleen
2007-02-01 21:05     ` mbligh
2007-02-03  1:16   ` H. Peter Anvin
2007-02-01  9:59 ` [patch 5/9] Add all the necessary structures to the vsyscall page jbohac
2007-02-01 11:17   ` Andi Kleen
2007-02-01  9:59 ` [patch 6/9] Add the "Master Timer" jbohac
2007-02-01 11:22   ` Andi Kleen
2007-02-01 13:29     ` Jiri Bohac
2007-02-01  9:59 ` [patch 7/9] Adapt the time initialization code jbohac
2007-02-01 11:26   ` Andi Kleen [this message]
2007-02-01 13:41     ` Jiri Bohac
2007-02-01 10:00 ` [patch 8/9] Add time_update_mt_guess() jbohac
2007-02-01 11:28   ` Andi Kleen
2007-02-01 13:54     ` Jiri Bohac
2007-02-01 10:00 ` [patch 9/9] Make use of the Master Timer jbohac
2007-02-01 11:36   ` Andi Kleen
2007-02-01 14:29     ` Jiri Bohac
2007-02-01 15:23       ` Vojtech Pavlik
2007-02-02  7:05         ` Andi Kleen
2007-02-02  7:04       ` Andi Kleen
2007-02-01 11:20 ` [patch 0/9] x86_64: reliable TSC-based gettimeofday Andi Kleen
2007-02-01 11:53   ` Andrea Arcangeli
2007-02-01 12:02     ` Andi Kleen
2007-02-01 12:54       ` Andrea Arcangeli
2007-02-01 12:17   ` Ingo Molnar
2007-02-01 14:52   ` Jiri Bohac
2007-02-01 16:56     ` john stultz
2007-02-01 19:41       ` Vojtech Pavlik
2007-02-01 11:34 ` Ingo Molnar
2007-02-01 11:46 ` [-mm patch] x86_64 GTOD: offer scalable vgettimeofday Ingo Molnar
2007-02-01 12:01   ` Andi Kleen
2007-02-01 12:14     ` Ingo Molnar
2007-02-01 12:17   ` [-mm patch] x86_64 GTOD: offer scalable vgettimeofday II Andi Kleen
2007-02-01 12:24     ` Ingo Molnar
2007-02-01 12:45       ` Andi Kleen
2007-02-02  4:22 ` [patch 0/9] x86_64: reliable TSC-based gettimeofday Andrew Morton
2007-02-02  7:07   ` Andi Kleen

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