linux-kernel - Re: [PATCH v3] x86: Fix sibling map with NumaChip

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Message-ID: <20150304045204.GA5158@gmail.com>
Date:	Wed, 4 Mar 2015 05:52:04 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Daniel J Blueman <daniel@...ascale.com>
Cc:	Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Steffen Persvold <sp@...ascale.com>
Subject: Re: [PATCH v3] x86: Fix sibling map with NumaChip


* Daniel J Blueman <daniel@...ascale.com> wrote:

> v3: Test against boot cpu features to correct behaviour on larger systems
>     with global IO

> +	if (boot_cpu_has(X86_FEATURE_NODEID_MSR)) {

Hm, so why doesn't this_cpu_has() work? Supposedly such flags ought to 
be symmetric on all CPUs in the system?

Thanks,

	Ingo
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