From: Tejun Heo <tj@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, eric.dumazet@gmail.com, yinghai@kernel.org,
brgerst@gmail.com, gorcunov@gmail.com, penberg@kernel.org
Subject: Re: [PATCH 14/16] x86: Unify CPU -> NUMA node mapping between 32 and 64bit
Date: Fri, 10 Dec 2010 12:13:08 +0100 [thread overview]
Message-ID: <4D020B44.1040600@kernel.org> (raw)
In-Reply-To: <alpine.LFD.2.00.1012092244520.2653@localhost6.localdomain6>
On 12/09/2010 10:49 PM, Thomas Gleixner wrote:
> On Sat, 27 Nov 2010, Tejun Heo wrote:
>
>> Unlike 64bit, 32bit has been using its own cpu_to_node_map[] for CPU
>> -> NUMA node mapping. Replace it with early_percpu variable
>> x86_cpu_to_node_map and share the mapping code with 64bit.
>>
>> * USE_PERCPU_NUMA_NODE_ID is now enabled for 32bit too.
>>
>> * x86_cpu_to_node_map and numa_set/clear_node() are moved from numa_64
>> to numa. For now, x86_cpu_to_node_map is initialized with 0 instead
>> of NUMA_NO_NODE. This is to avoid introducing unexpected behavior
>
> That's true for 32bit only, right? I actually had to dig into the code
> to verify this. Please make this clear for the casual reader.
Will do so.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-12-10 11:12 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-27 15:21 [PATCHSET] x86: unify x86_32 and 64 NUMA init paths, take#2 Tejun Heo
2010-11-27 15:21 ` [PATCH 01/16] x86: Kill unused static boot_cpu_logical_apicid in smpboot.c Tejun Heo
2010-11-27 15:21 ` [PATCH 02/16] x86: Rename x86_32 MAX_APICID to MAX_LOCAL_APIC Tejun Heo
2010-11-27 15:21 ` [PATCH 03/16] x86: Make default_send_IPI_mask_sequence/allbutself_logical() 32bit only Tejun Heo
2010-11-27 15:21 ` [PATCH 04/16] x86: Use local variable to cache smp_processor_id() in setup_local_APIC() Tejun Heo
2010-11-27 21:32 ` Cyrill Gorcunov
2010-11-30 16:17 ` [PATCH UPDATED " Tejun Heo
2010-11-30 18:11 ` [PATCH UPDATED#2 " Tejun Heo
2010-11-30 18:22 ` Cyrill Gorcunov
2010-11-30 19:42 ` Tejun Heo
2010-11-30 20:52 ` Cyrill Gorcunov
2010-12-09 9:37 ` Pekka Enberg
2010-12-09 10:47 ` [PATCH UPDATED#3 04/16] x86: setup_local_APIC() must always be called with preemption disabled Tejun Heo
2010-12-09 16:17 ` Cyrill Gorcunov
2010-12-09 16:18 ` Pekka Enberg
2010-12-09 21:56 ` Thomas Gleixner
2010-12-10 11:09 ` Tejun Heo
2010-12-10 11:10 ` Thomas Gleixner
2010-12-10 12:48 ` [tip:x86/apic-cleanups] x86: apic: Cleanup and simplify setup_local_APIC() tip-bot for Tejun Heo
2010-11-27 15:21 ` [PATCH 05/16] x86: Replace cpu_2_logical_apicid[] with early percpu variable Tejun Heo
2010-11-27 15:21 ` [PATCH 06/16] x86: Always use x86_cpu_to_logical_apicid for cpu -> logical apic id Tejun Heo
2010-11-27 15:21 ` [PATCH 07/16] x86: Remove custom apic->cpu_to_logical_apicid() implementations Tejun Heo
2010-12-09 21:28 ` Thomas Gleixner
2010-12-10 11:12 ` Tejun Heo
2010-12-10 11:18 ` Thomas Gleixner
2010-11-27 15:21 ` [PATCH 08/16] x86: Use apic->cpu_to_logical_apicid() to find out logical apic id mapping early during boot Tejun Heo
2010-11-27 15:21 ` [PATCH 09/16] x86: Implement cpu_to_logical_apicid() for bigsmp_32 Tejun Heo
2010-11-27 15:21 ` [PATCH 10/16] x86: Implement cpu_to_logical_apicid() for summit_32 Tejun Heo
2010-11-27 15:22 ` [PATCH 11/16] x86: Implement cpu_to_logical_apicid() for numaq_32 Tejun Heo
2010-11-27 15:22 ` [PATCH 12/16] x86: Replace apic->apicid_to_node() with ->numa_cpu_node() Tejun Heo
2010-11-27 15:22 ` [PATCH 13/16] x86: Unify cpu/apicid <-> NUMA node mapping between 32 and 64bit Tejun Heo
2010-12-09 21:43 ` Thomas Gleixner
2010-12-10 20:45 ` Tejun Heo
2010-12-10 20:54 ` Tejun Heo
2010-12-10 21:17 ` Yinghai Lu
2010-11-27 15:22 ` [PATCH 14/16] x86: Unify CPU -> " Tejun Heo
2010-12-09 21:49 ` Thomas Gleixner
2010-12-10 11:13 ` Tejun Heo [this message]
2010-11-27 15:22 ` [PATCH 15/16] x86: Unify node_to_cpumask_map handling " Tejun Heo
2010-11-27 15:22 ` [PATCH 16/16] x86: Unify NUMA initialization " Tejun Heo
2010-12-07 16:22 ` [PATCHSET] x86: unify x86_32 and 64 NUMA init paths, take#2 Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2010-12-28 11:48 [PATCHSET REPOST] x86: unify x86_32 and 64 NUMA init paths, take#3 Tejun Heo
2010-12-28 11:48 ` [PATCH 14/16] x86: Unify CPU -> NUMA node mapping between 32 and 64bit Tejun Heo
2010-12-28 20:39 ` David Rientjes
2010-12-30 17:49 [PATCHSET] x86: unify x86_32 and 64 NUMA init paths, take#4 Tejun Heo
2010-12-30 17:49 ` [PATCH 14/16] x86: Unify CPU -> NUMA node mapping between 32 and 64bit Tejun Heo
2011-01-23 13:37 [PATCHSET] x86: unify x86_32 and 64 NUMA init paths, take#5 Tejun Heo
2011-01-23 13:37 ` [PATCH 14/16] x86: Unify CPU -> NUMA node mapping between 32 and 64bit Tejun Heo
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