linux-kernel - Re: [PATCH] powerpc: warn users of smt-snooze-delay that the API isn't there anymore

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Message-ID: <1393368002.6314.10.camel@pasglop>
Date:	Wed, 26 Feb 2014 09:40:02 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Deepthi Dharwar <deepthi@...ux.vnet.ibm.com>
Cc:	Cody P Schafer <cody@...ux.vnet.ibm.com>,
	Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
	Olof Johansson <olof@...om.net>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Wang Dongsheng <dongsheng.wang@...escale.com>,
	Paul Mackerras <paulus@...ba.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] powerpc: warn users of smt-snooze-delay that the API
 isn't there anymore

On Tue, 2014-02-25 at 13:29 +0530, Deepthi Dharwar wrote:
> We currently do not use smt-snooze-delay in the kernel.
> The sysfs entries needs to  be retained until we do a clean up
> ppc64_cpu
> util that uses these entries to determine SMT,
> clean up patch for this has already been posted out by Prerna.
> Once, we have the ppc64_cpu changes in, we can look to clean up these
> parts from the kernel.

We generally shouldn't change user visible interfaces.

People still have old versions of ppc64_cpu, we must not break them

Cheers,
Ben.


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