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From: Dou Liyang <douly.fnst@cn.fujitsu.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
	linux-acpi@vger.kernel.org, linux-doc@vger.kernel.org,
	tglx@linutronix.de, mingo@redhat.com, corbet@lwn.net,
	rjw@rjwysocki.net, lenb@kernel.org, hpa@zytor.com
Subject: Re: [PATCH 3/5] x86/smpboot: Make the check code more clear in prefill_possible_map()
Date: Wed, 21 Mar 2018 13:38:44 +0800	[thread overview]
Message-ID: <e9ef4100-0b87-b61a-5ad4-5f78b2d61783@cn.fujitsu.com> (raw)
In-Reply-To: <20180320123918.GS4043@hirez.programming.kicks-ass.net>

Hi Peter,

At 03/20/2018 08:39 PM, Peter Zijlstra wrote:
> On Tue, Mar 20, 2018 at 07:04:30PM +0800, Dou Liyang wrote:
>> case 1: no  | no  | no | -->  min (setup_possible_cpus, nr_cpu_ids, setup_max_cpus)
>> case 2: no  | no  | yes| -->  min (setup_possible_cpus, nr_cpu_ids)
>> case 3: no  | yes | no | -->  1
>> case 4: no  | yes | yes| -->  1
>> case 5: yes | no  | no | -->  min (num_processors, nr_cpu_ids, setup_max_cpus)
>> case 6: yes | no  | yes| -->  min (num_processors + disabled_cpus, nr_cpu_ids)
>> case 7: yes | yes | no | -->  1
>> case 8: yes | yes | yes| -->  1
> 
> The case number is off by one ;-)
> 

I got it! ;-）

Thanks
	dou
> 
> 

WARNING: multiple messages have this Message-ID (diff)
From: Dou Liyang <douly.fnst@cn.fujitsu.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: <linux-kernel@vger.kernel.org>, <x86@kernel.org>,
	<linux-acpi@vger.kernel.org>, <linux-doc@vger.kernel.org>,
	<tglx@linutronix.de>, <mingo@redhat.com>, <corbet@lwn.net>,
	<rjw@rjwysocki.net>, <lenb@kernel.org>, <hpa@zytor.com>
Subject: Re: [PATCH 3/5] x86/smpboot: Make the check code more clear in prefill_possible_map()
Date: Wed, 21 Mar 2018 13:38:44 +0800	[thread overview]
Message-ID: <e9ef4100-0b87-b61a-5ad4-5f78b2d61783@cn.fujitsu.com> (raw)
In-Reply-To: <20180320123918.GS4043@hirez.programming.kicks-ass.net>

Hi Peter,

At 03/20/2018 08:39 PM, Peter Zijlstra wrote:
> On Tue, Mar 20, 2018 at 07:04:30PM +0800, Dou Liyang wrote:
>> case 1: no  | no  | no | -->  min (setup_possible_cpus, nr_cpu_ids, setup_max_cpus)
>> case 2: no  | no  | yes| -->  min (setup_possible_cpus, nr_cpu_ids)
>> case 3: no  | yes | no | -->  1
>> case 4: no  | yes | yes| -->  1
>> case 5: yes | no  | no | -->  min (num_processors, nr_cpu_ids, setup_max_cpus)
>> case 6: yes | no  | yes| -->  min (num_processors + disabled_cpus, nr_cpu_ids)
>> case 7: yes | yes | no | -->  1
>> case 8: yes | yes | yes| -->  1
> 
> The case number is off by one ;-)
> 

I got it! ;-）

Thanks
	dou
> 
> 

WARNING: multiple messages have this Message-ID (diff)
From: Dou Liyang <douly.fnst@cn.fujitsu.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: <linux-kernel@vger.kernel.org>, <x86@kernel.org>,
	<linux-acpi@vger.kernel.org>, <linux-doc@vger.kernel.org>,
	<tglx@linutronix.de>, <mingo@redhat.com>, <corbet@lwn.net>,
	<rjw@rjwysocki.net>, <lenb@kernel.org>, <hpa@zytor.com>
Subject: Re: [PATCH 3/5] x86/smpboot: Make the check code more clear in prefill_possible_map()
Date: Wed, 21 Mar 2018 13:38:44 +0800	[thread overview]
Message-ID: <e9ef4100-0b87-b61a-5ad4-5f78b2d61783@cn.fujitsu.com> (raw)
In-Reply-To: <20180320123918.GS4043@hirez.programming.kicks-ass.net>

Hi Peter,

At 03/20/2018 08:39 PM, Peter Zijlstra wrote:
> On Tue, Mar 20, 2018 at 07:04:30PM +0800, Dou Liyang wrote:
>> case 1: no  | no  | no | -->  min (setup_possible_cpus, nr_cpu_ids, setup_max_cpus)
>> case 2: no  | no  | yes| -->  min (setup_possible_cpus, nr_cpu_ids)
>> case 3: no  | yes | no | -->  1
>> case 4: no  | yes | yes| -->  1
>> case 5: yes | no  | no | -->  min (num_processors, nr_cpu_ids, setup_max_cpus)
>> case 6: yes | no  | yes| -->  min (num_processors + disabled_cpus, nr_cpu_ids)
>> case 7: yes | yes | no | -->  1
>> case 8: yes | yes | yes| -->  1
> 
> The case number is off by one ;-)
> 

I got it! ;-）

Thanks
	dou
> 
> 


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  reply	other threads:[~2018-03-21  5:38 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-20 11:04 [PATCH 0/5] x86/cpu_hotplug: one bug fix and four cleanup Dou Liyang
2018-03-20 11:04 ` Dou Liyang
2018-03-20 11:04 ` Dou Liyang
2018-03-20 11:04 ` [PATCH 1/5] x86/smpboot: Add the missing description of possible_cpus Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 12:37   ` Peter Zijlstra
2018-03-20 12:37     ` Peter Zijlstra
2018-03-21  5:33     ` Dou Liyang
2018-03-21  5:33       ` Dou Liyang
2018-03-21  5:33       ` Dou Liyang
2018-03-21  9:08       ` Peter Zijlstra
2018-03-21  9:08         ` Peter Zijlstra
2018-03-21  9:34         ` Dou Liyang
2018-03-21  9:34           ` Dou Liyang
2018-03-21  9:34           ` Dou Liyang
2018-03-21  9:41           ` Dou Liyang
2018-03-21  9:41             ` Dou Liyang
2018-03-21  9:41             ` Dou Liyang
2018-03-21  9:41         ` Thomas Gleixner
2018-03-21  9:41           ` Thomas Gleixner
2018-03-20 11:04 ` [PATCH 2/5] x86/cpu_hotplug: Update the link of cpu_hotplug.rst Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 11:04 ` [PATCH 3/5] x86/smpboot: Make the check code more clear in prefill_possible_map() Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 12:39   ` Peter Zijlstra
2018-03-20 12:39     ` Peter Zijlstra
2018-03-21  5:38     ` Dou Liyang [this message]
2018-03-21  5:38       ` Dou Liyang
2018-03-21  5:38       ` Dou Liyang
2018-03-20 11:04 ` [PATCH 4/5] acpi/processor: Fix the return value of acpi_processor_ids_walk() Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-05-19 15:06   ` Thomas Gleixner
2018-05-19 15:06     ` Thomas Gleixner
2018-05-22  1:47     ` Dou Liyang
2018-05-22  1:47       ` Dou Liyang
2018-05-22  1:47       ` Dou Liyang
2018-05-23  1:34       ` Dou Liyang
2018-05-23  1:34         ` Dou Liyang
2018-05-23  1:34         ` Dou Liyang
2018-05-23  8:08         ` Rafael J. Wysocki
2018-05-23  8:08           ` Rafael J. Wysocki
2018-03-20 11:04 ` [PATCH 5/5] acpi/processor: Make the acpi_duplicate_processor_id() static Dou Liyang
2018-03-20 11:04   ` Dou Liyang
2018-03-20 11:04   ` Dou Liyang

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