linux-kernel - Re: [PATCH v2] MIPS: Add a high resolution sched_clock() via cnt32_to

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Date:	Sun, 22 Nov 2009 19:06:16 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>
Cc:	Wu Zhangjin <wuzhangjin@...il.com>,
	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Michal Simek <monstr@...str.eu>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] MIPS: Add a high resolution sched_clock() via
 cnt32_to_63().


* Sergei Shtylyov <sshtylyov@...mvista.com> wrote:

> Hello.
> 
> Ingo Molnar wrote:
> 
> >>+config HR_SCHED_CLOCK
> >>+	bool "High Resolution sched_clock()"
> >>+	depends on CSRC_R4K
> >>+	default n
> >>+	help
> >>+	  This option enables the MIPS c0 count based high resolution
> >>+	  sched_clock().
> >>+
> >>+	  If you need a ns precision timestamp, You are recommended to enable
> >>+	  this option. For example, If you are using the Ftrace subsystem to do
> 
>   s/If/if/
> 
> >>diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
> >>index e95a3cd..4e52cca 100644
> >>--- a/arch/mips/kernel/csrc-r4k.c
> >>+++ b/arch/mips/kernel/csrc-r4k.c
> >>@@ -6,10 +6,64 @@
> >>  * Copyright (C) 2007 by Ralf Baechle
> >>  */
> >> #include <linux/clocksource.h>
> >>+#include <linux/cnt32_to_63.h>
> >>+#include <linux/timer.h>
> >> #include <linux/init.h>
> >> #include <asm/time.h>
> >>+/*
> >>+ * MIPS' sched_clock implementation.
> >
> >s/MIPS'/MIPS's
> 
>   MIPS's is not really a proper English. :-)

AFAIK 'MIPS' is not the plural of 'MIP' (but an acronym ending with 
'S'), hence the possessive form would be MIPS's.

It doesnt matter much i guess ;-)

	Ingo
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