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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
	linuxppc-dev@lists.ozlabs.org,
	Wang Dongsheng <dongsheng.wang@freescale.com>,
	linux-kernel@vger.kernel.org,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	Paul Mackerras <paulus@samba.org>,
	Olof Johansson <olof@lixom.net>,
	Cody P Schafer <cody@linux.vnet.ibm.com>
Subject: Re: [PATCH] powerpc: warn users of smt-snooze-delay that the API isn't there anymore
Date: Wed, 26 Feb 2014 09:40:02 +1100	[thread overview]
Message-ID: <1393368002.6314.10.camel@pasglop> (raw)
In-Reply-To: <530C4D57.1030905@linux.vnet.ibm.com>

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.

WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>,
	Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
	Olof Johansson <olof@lixom.net>,
	Paul Gortmaker <paul.gortmaker@windriver.com>,
	Wang Dongsheng <dongsheng.wang@freescale.com>,
	Paul Mackerras <paulus@samba.org>,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] powerpc: warn users of smt-snooze-delay that the API isn't there anymore
Date: Wed, 26 Feb 2014 09:40:02 +1100	[thread overview]
Message-ID: <1393368002.6314.10.camel@pasglop> (raw)
In-Reply-To: <530C4D57.1030905@linux.vnet.ibm.com>

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.



  reply	other threads:[~2014-02-25 22:40 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-22  0:14 [PATCH] powerpc: warn users of smt-snooze-delay that the API isn't there anymore Cody P Schafer
2014-02-22  0:14 ` Cody P Schafer
2014-02-25  4:53 ` Madhavan Srinivasan
2014-02-25  4:53   ` Madhavan Srinivasan
2014-02-25 22:47   ` Cody P Schafer
2014-02-25 22:47     ` Cody P Schafer
2014-02-25  7:59 ` Deepthi Dharwar
2014-02-25  7:59   ` Deepthi Dharwar
2014-02-25 22:40   ` Benjamin Herrenschmidt [this message]
2014-02-25 22:40     ` Benjamin Herrenschmidt
2014-02-26  3:45     ` Michael Ellerman
2014-02-26  3:45       ` Michael Ellerman

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