From: Yinghai Lu <yinghai@kernel.org>
To: suresh.b.siddha@intel.com
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Rusty Russell <rusty@rustcorp.com.au>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 4/8] irq: only update affinity in chip set_affinity() -v3
Date: Thu, 16 Apr 2009 18:58:09 -0700 [thread overview]
Message-ID: <49E7E231.7080301@kernel.org> (raw)
In-Reply-To: <1239924338.27006.8458.camel@localhost.localdomain>
Suresh Siddha wrote:
> On Wed, 2009-04-15 at 18:41 -0700, Yinghai Lu wrote:
>> Impact: keep affinity consistent
>>
>> irq_set_affinity() and move_masked_irq() try to assign affinity
>> before calling chip set_affinity(). some archs are assigning again in set_affinity
>> again.
>>
>> something like:
>> cpumask_cpy(desc->affinity, mask);
>> desc->chip->set_affinity(mask);
>>
>> in the failing path, affinity should not be touched.
>>
>> also set_extra_move_desc() ( called by set_affinity) will rely on the old
>> affinity to decide if need to move irq_desc to different node when logical
>> flat apic mode is used.
>>
>> So try remove those assignment, and make some missed arch to assign affinity
>> in their set_affinity.
>>
>
> I don't see any arch specific changes in this patchset regarding this.
> Did I miss or currently there are no arch's that needs to get fixed?
>
will update the comments.
YH
next prev parent reply other threads:[~2009-04-17 2:00 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-16 1:39 [PATCH 1/8] x86/irq: remove NUMA_MIGRATIE_IRQ_DESC Yinghai Lu
2009-04-16 1:40 ` [PATCH 2/8] irq: correct CPUMASKS_OFFSTACK typo -v3 Yinghai Lu
2009-04-16 1:41 ` [PATCH 3/8] irq: make set_affinity to return status -v2 Yinghai Lu
2009-04-16 9:08 ` Ingo Molnar
2009-04-16 9:17 ` Joe Perches
2009-04-16 9:25 ` Ingo Molnar
2009-04-16 1:41 ` [PATCH 4/8] irq: only update affinity in chip set_affinity() -v3 Yinghai Lu
2009-04-16 23:25 ` Suresh Siddha
2009-04-17 1:58 ` Yinghai Lu [this message]
2009-04-16 1:42 ` [PATCH 5/8] irq: change irq_desc_alloc to take node instead cpu Yinghai Lu
2009-04-16 9:10 ` Ingo Molnar
2009-04-16 1:43 ` [PATCH 6/8] irq: make io_apic_set_pci_routing to take device Yinghai Lu
2009-04-16 9:16 ` Ingo Molnar
2009-04-16 1:44 ` [PATCH 7/8] x86/irq: make MSI irq_desc numa aware Yinghai Lu
2009-04-16 9:18 ` Ingo Molnar
2009-04-16 1:44 ` [PATCH 8/8] irq: make ht " Yinghai Lu
2009-04-16 9:21 ` Ingo Molnar
2009-04-16 23:34 ` Suresh Siddha
2009-04-16 9:03 ` [PATCH 1/8] x86/irq: remove NUMA_MIGRATIE_IRQ_DESC Ingo Molnar
2009-04-17 4:17 ` [PATCH 1/9] x86/irq: remove NUMA_MIGRATE_IRQ_DESC Yinghai Lu
2009-04-17 4:18 ` [PATCH 2/9] irq: correct CPUMASKS_OFFSTACK typo -v4 Yinghai Lu
2009-04-28 0:58 ` [PATCH 2/9] x86/irq: remove NUMA_MIGRATE_IRQ_DESC -v2 Yinghai Lu
2009-05-01 17:06 ` [tip:irq/numa] x86/irq: remove leftover code from NUMA_MIGRATE_IRQ_DESC tip-bot for Yinghai Lu
2009-04-17 4:19 ` [PATCH 3/9] irq: make set_affinity to return status -v2 Yinghai Lu
2009-04-28 0:59 ` Yinghai Lu
2009-05-01 17:06 ` [tip:irq/numa] irq: change ->set_affinity() to return status tip-bot for Yinghai Lu
2009-05-06 6:55 ` [tip:irq/numa] irq: change ->set_affinity() to return status, fix tip-bot for Ingo Molnar
2009-04-17 4:20 ` [PATCH 4/9] irq: only update affinity if set_affinity() sucessfully -v4 Yinghai Lu
2009-04-28 0:59 ` Yinghai Lu
2009-05-01 17:07 ` [tip:irq/numa] irq: only update affinity if ->set_affinity() is sucessfull tip-bot for Yinghai Lu
2009-04-17 4:21 ` [PATCH 5/9] x86/irq: change irq_desc_alloc to take node instead cpu Yinghai Lu
2009-04-28 1:00 ` [PATCH 5/9] x86/irq: change irq_desc_alloc to take node instead cpu -v2 Yinghai Lu
2009-05-01 17:07 ` [tip:irq/numa] x86/irq: change irq_desc_alloc() to take node instead of cpu tip-bot for Yinghai Lu
2009-04-17 4:23 ` [PATCH 6/9] irq: make io_apic_set_pci_routing to take device Yinghai Lu
2009-04-23 4:42 ` Len Brown
2009-04-26 21:53 ` [PATCH] x86/acpi: remove compress irq trick for 32bit Yinghai Lu
2009-04-26 21:55 ` [PATCH] x86/acpi: calling mp_config_acpi_gsi in mp_register_gsi Yinghai Lu
2009-04-26 23:25 ` Yinghai Lu
2009-04-27 1:12 ` [PATCH] x86/acpi: calling mp_config_acpi_gsi in mp_register_gsi -v2 Yinghai Lu
2009-04-27 3:30 ` [PATCH] x86/acpi: remove compress irq trick for 32bit Ingo Molnar
2009-05-14 15:41 ` Len Brown
2009-05-15 13:06 ` Ingo Molnar
2009-04-28 1:01 ` [PATCH 6/9] irq: make io_apic_set_pci_routing to take device Yinghai Lu
2009-05-01 17:07 ` [tip:irq/numa] irq: change ACPI GSI APIs to also take a device argument tip-bot for Yinghai Lu
2009-04-17 4:24 ` [PATCH 7/9] irq: make io_apic_set_pci_routing to use device Yinghai Lu
2009-04-28 1:01 ` Yinghai Lu
2009-05-01 17:07 ` [tip:irq/numa] irq: change io_apic_set_pci_routing() to use device parameter tip-bot for Yinghai Lu
2009-04-17 4:25 ` [PATCH 8/9] x86/irq: make MSI irq_desc numa aware Yinghai Lu
2009-04-27 3:26 ` [PATCH 8/9] x86/irq: make MSI irq_desc numa aware -v2 Yinghai Lu
2009-04-28 1:02 ` [PATCH 8/9] x86/irq: make MSI irq_desc numa aware -v3 Yinghai Lu
2009-04-28 10:14 ` Ingo Molnar
2009-04-28 14:17 ` Yinghai Lu
2009-04-28 14:32 ` Ingo Molnar
2009-04-28 19:07 ` Yinghai Lu
2009-04-29 12:00 ` Ingo Molnar
2009-04-29 16:27 ` [PATCH] x86/irq: using move_irq_desc Yinghai Lu
2009-04-29 20:41 ` Ingo Molnar
2009-04-29 21:23 ` Ingo Molnar
2009-04-29 21:55 ` Yinghai Lu
2009-04-29 23:25 ` Yinghai Lu
2009-04-30 7:29 ` Ingo Molnar
2009-04-30 8:17 ` [PATCH] x86/irq: using move_irq_desc -v3 Yinghai Lu
2009-05-01 17:08 ` [tip:irq/numa] x86/irq: use move_irq_desc() in create_irq_nr() tip-bot for Yinghai Lu
2009-04-28 21:41 ` [PATCH] x86/irq: use move_irq_desc only when CONFIG_NUMA_IRQ_DESC is set Yinghai Lu
2009-05-01 17:07 ` [tip:irq/numa] x86/irq: change MSI irq_desc to be more numa aware tip-bot for Yinghai Lu
2009-04-17 4:25 ` [PATCH 9/9] irq: make ht irq_desc " Yinghai Lu
2009-04-28 1:02 ` Yinghai Lu
2009-04-28 10:19 ` Ingo Molnar
2009-04-28 16:28 ` Jesse Barnes
2009-04-28 16:28 ` Jesse Barnes
2009-05-01 17:07 ` [tip:irq/numa] irq: make ht irq_desc more " tip-bot for Yinghai Lu
2009-04-17 13:49 ` [PATCH 1/9] x86/irq: remove NUMA_MIGRATE_IRQ_DESC Ingo Molnar
2009-04-28 0:57 ` [PATCH 1/9] irq: correct CPUMASKS_OFFSTACK typo -v5 Yinghai Lu
2009-05-01 17:06 ` [tip:irq/numa] irq, cpumask: correct CPUMASKS_OFFSTACK typo and fix fallout tip-bot for Yinghai Lu
2009-04-17 1:00 ` [tip:irq/urgent] x86/irq: mark NUMA_MIGRATIE_IRQ_DESC broken tip-bot for Yinghai Lu
2009-04-17 1:21 ` [tip:irq/urgent] x86/irq: mark NUMA_MIGRATE_IRQ_DESC broken tip-bot for Yinghai Lu
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