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From: Yinghai Lu <yinghai@kernel.org>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	"Brown, Len" <len.brown@intel.com>,
	Suresh Siddha <suresh.b.siddha@intel.com>,
	ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Lin Ming <ming.m.lin@intel.com>,
	Bob Moore <robert.moore@intel.com>
Subject: Re: [PATCH] acpi: handle ACPI0007 Device in acpi_early_set_pdc
Date: Fri, 17 Sep 2010 11:37:21 -0700	[thread overview]
Message-ID: <4C93B561.2040902@kernel.org> (raw)
In-Reply-To: <201009170756.53100.bjorn.helgaas@hp.com>

On 09/17/2010 06:56 AM, Bjorn Helgaas wrote:
> On Friday, September 17, 2010 01:21:56 am Yinghai Lu wrote:
>> On 09/13/2010 10:28 AM, Bjorn Helgaas wrote:
>>> On Friday, September 10, 2010 08:06:26 pm Yinghai Lu wrote:
>>>
>>> I timed the original on a 64-CPU box where the namespace walk cost
>>> should be relatively high, and the walk you added takes about 0.01
>>> seconds.  The one already there took about 0.03 seconds, so neither
>>> costs very much.
>>>
>>> And I don't like the fact that the patch below changes the ACPI CA
>>> and it only partly implements acpi_get_devices(), since it ignores
>>> _CID and _STA.
>>
>> please check this one. it still keep _STA etc.
> 
> I think you missed this line in my previous response:
> 
>>> But I do see your point, and having seen the patch
>>> below, I prefer the original one-line version.
> 
> The patch below is better, because it doesn't reimplement quite
> so much stuff, but it still changes the CA,
not sure.
> and I think the end
> result is still quite confusing to read.
yeah, it is confusing to read.... callback with callback.
> 
> So I still prefer the original one-line version.

ok, Will resend out original one with updated changelog.

Yinghai

  reply	other threads:[~2010-09-17 18:38 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <4C89906B.1050406@kernel.org>
     [not found] ` <201009101210.31942.bjorn.helgaas@hp.com>
2010-09-10 19:20   ` Yinghai Lu
2010-09-10 23:45     ` Andrew Morton
2010-09-11  2:06       ` Yinghai Lu
2010-09-13 17:28         ` Bjorn Helgaas
2010-09-17  7:21           ` Yinghai Lu
2010-09-17 13:56             ` Bjorn Helgaas
2010-09-17 18:37               ` Yinghai Lu [this message]
2010-09-18  6:26               ` [PATCH -v4] acpi: Handle " Yinghai Lu
2010-10-01  6:07                 ` Len Brown

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