From: Brandon Philips <bphilips@suse.de>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Suresh Siddha <suresh.b.siddha@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: keep chip_data in create_irq_nr and destroy_irq
Date: Fri, 5 Feb 2010 14:55:35 -0800 [thread overview]
Message-ID: <20100205225535.GF4930@jenkins.home.ifup.org> (raw)
In-Reply-To: <4B6C9F69.4040605@kernel.org>
On 14:44 Fri 05 Feb 2010, Yinghai Lu wrote:
> On 02/05/2010 01:09 PM, Brandon Philips wrote:
> > @@ -77,7 +90,8 @@ void dynamic_irq_cleanup(unsigned int ir
> > }
> > desc->msi_desc = NULL;
> > desc->handler_data = NULL;
> > - desc->chip_data = NULL;
> > + if (!keep_chip_data)
> > + desc->chip_data = NULL;
> > desc->handle_irq = handle_bad_irq;
> > desc->chip = &no_irq_chip;
> > desc->name = NULL;
> > @@ -85,6 +99,26 @@ void dynamic_irq_cleanup(unsigned int ir
> > raw_spin_unlock_irqrestore(&desc->lock, flags);
> > }
> >
> > +/**
> > + * dynamic_irq_cleanup - cleanup a dynamically allocated irq
> > + * @irq: irq number to initialize
> > + */
> > +void dynamic_irq_cleanup(unsigned int irq)
> > +{
> > + dynamic_irq_init_x(irq, false);
>
> should be dynamic_irq_cleanup_x here.
>
> > +}
> > +
> > +/**
> > + * dynamic_irq_cleanup_keep_chip_data - cleanup a dynamically allocated irq
> > + * @irq: irq number to initialize
> > + *
> > + * does not set irq_to_desc(irq)->chip_data to NULL
> > + */
> > +void dynamic_irq_cleanup_keep_chip_data(unsigned int irq)
> > +{
> > + dynamic_irq_init_x(irq, true);
>
> should be dynamic_irq_cleanup_x
Oops, right. I will fix this up along with the externs as hpa
suggested and send again.
What are your thoughts on locking? Does it look OK as is?
Thanks,
Brandon
next prev parent reply other threads:[~2010-02-05 22:56 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-03 3:31 x86: fix race in create_irq_nr on irq_desc Brandon Philips
2010-02-03 10:20 ` Yinghai Lu
2010-02-03 17:42 ` Brandon Philips
2010-02-03 19:31 ` Yinghai Lu
2010-02-04 3:17 ` Brandon Philips
2010-02-05 8:45 ` [PATCH] x86: keep chip_data in create_irq_nr Yinghai Lu
2010-02-05 21:05 ` Brandon Philips
2010-02-05 21:42 ` H. Peter Anvin
2010-02-05 21:09 ` [PATCH] x86: keep chip_data in create_irq_nr and destroy_irq Brandon Philips
2010-02-05 22:44 ` Yinghai Lu
2010-02-05 22:55 ` Brandon Philips [this message]
2010-02-06 0:06 ` Yinghai Lu
2010-02-06 0:18 ` [PATCH v2] " Brandon Philips
2010-02-06 6:42 ` [PATCH v3] " Brandon Philips
2010-02-06 7:16 ` Yinghai Lu
2010-02-06 20:05 ` Brandon Philips
2010-02-07 21:02 ` [PATCH v4] " Brandon Philips
2010-02-19 6:06 ` [tip:x86/urgent] x86, irq: Keep " tip-bot for Brandon Philips
2010-02-26 10:26 ` [tip:x86/irq] x86: apic: Fix mismerge, add arch_probe_nr_irqs() again tip-bot for Ingo Molnar
2010-02-26 18:19 ` Yinghai Lu
2010-02-27 9:10 ` Ingo Molnar
2010-02-27 9:37 ` Eric W. Biederman
2010-02-27 9:53 ` Ingo Molnar
2010-02-27 10:12 ` Eric W. Biederman
2010-03-01 11:22 ` Ian Campbell
2010-03-01 18:34 ` Eric W. Biederman
2010-03-01 21:44 ` Ian Campbell
2010-03-01 21:58 ` Eric W. Biederman
2010-03-02 8:31 ` Thomas Gleixner
2010-03-10 10:55 ` Ian Campbell
2010-03-10 10:55 ` [PATCH] x86: namespace some I/O APIC related structures and functions ijc
2010-03-10 17:07 ` Eric W. Biederman
2010-03-10 10:55 ` [PATCH] irq: move some interrupt arch_* functions into struct irq_chip ijc
2010-03-10 11:00 ` Ian Campbell
2010-03-10 17:18 ` Eric W. Biederman
2010-03-10 17:41 ` Ian Campbell
2010-03-10 18:11 ` Eric W. Biederman
2010-03-10 12:06 ` Yinghai Lu
2010-03-10 12:51 ` Ian Campbell
2010-03-10 17:42 ` Eric W. Biederman
2010-03-10 17:50 ` Ian Campbell
2010-03-10 18:15 ` Eric W. Biederman
2010-03-10 18:28 ` Ian Campbell
2010-03-10 18:27 ` Jeremy Fitzhardinge
2010-03-10 18:59 ` Yinghai Lu
2010-03-10 19:15 ` Eric W. Biederman
2010-03-10 22:07 ` Michael Ellerman
2010-03-10 10:55 ` [PATCH] x86: irq_desc->chip_data is always correct whether or not SPARSE_IRQ is enabled ijc
2010-03-01 22:01 ` [tip:x86/irq] x86: apic: Fix mismerge, add arch_probe_nr_irqs() again Jeremy Fitzhardinge
2010-02-27 12:57 ` [tip:x86/apic] " tip-bot for Ingo Molnar
2010-02-03 10:32 ` x86: fix race in create_irq_nr on irq_desc Yinghai Lu
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