From: Ingo Molnar <mingo@elte.hu>
To: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH] x86_64: remove wrong setting about CONSTANT_TSC for intel cpu
Date: Tue, 26 Feb 2008 08:39:10 +0100 [thread overview]
Message-ID: <20080226073910.GA32590@elte.hu> (raw)
In-Reply-To: <20080226073444.GG24820@elte.hu>
* Ingo Molnar <mingo@elte.hu> wrote:
> > set_cpu_cap is right
> > ==
> > set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability); ===> is wrong
> > should be
> > set_bit(X86_FEATURE_CONSTANT_TSC, c->x86_capability);
> >
> > x86_capability is a array ...
> >
> > so this could prevent some data corruption.
>
> ah, right you are! [...]
actually, not: &c->x86_capability and c->x86_capability result in the
same address (it's an array, not a pointer), so there's no "data
corruption". If x86_capability were a pointer then you would be right -
so this is all worth cleaning up.
Ingo
prev parent reply other threads:[~2008-02-26 7:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-26 7:20 Yinghai Lu
2008-02-26 7:14 ` Ingo Molnar
2008-02-26 7:20 ` Ingo Molnar
2008-02-26 7:24 ` Yinghai Lu
2008-02-26 7:33 ` H. Peter Anvin
2008-02-26 9:47 ` Ingo Molnar
2008-02-26 17:29 ` Yinghai Lu
2008-02-26 7:34 ` Ingo Molnar
2008-02-26 7:39 ` Ingo Molnar [this message]
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