From: pbonzini@redhat.com (Paolo Bonzini)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC v2 3/6] irq: bypass: Extend skeleton for ARM forwarding control
Date: Tue, 7 Jul 2015 10:58:07 +0200 [thread overview]
Message-ID: <559B949F.4070905@redhat.com> (raw)
In-Reply-To: <559B7B6C.3060900@linaro.org>
On 07/07/2015 09:10, Eric Auger wrote:
> On 07/06/2015 07:41 PM, Paolo Bonzini wrote:
>>
>>
>> On 06/07/2015 19:09, Eric Auger wrote:
>>>>> The good thing is that this helps a bit forming a lock hierarchy across
>>>>> the subsystems, for example irq bypass mutex outside vfio_platform_irq
>>>>> spinlock, because you cannot have a spinlock inside the mutex. I think
>>>>> that all of your six callbacks are fine.
>>> arghh, no that's wrong then. I have plenty of them in the KVM/arm vgic
>>> part :-(
>>
>> I checked and it's right...
>>
>> /me rereads
>>
>> AAAARGH. You cannot have a mutex inside a spinlock. What you're doing
>> is fine.
>
> Sweated up (+ heat wave in France).
Same here, I also can blame the heat wave for the mistakes. :)
Paolo
next prev parent reply other threads:[~2015-07-07 8:58 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-06 12:11 [RFC v2 0/6] IRQ bypass manager and irqfd consumer Eric Auger
2015-07-06 12:11 ` [RFC v2 1/6] KVM: arm/arm64: select IRQ_BYPASS_MANAGER Eric Auger
2015-07-06 12:24 ` Paolo Bonzini
2015-07-06 12:11 ` [RFC v2 2/6] VFIO: platform: " Eric Auger
2015-07-06 12:11 ` [RFC v2 3/6] irq: bypass: Extend skeleton for ARM forwarding control Eric Auger
2015-07-06 12:27 ` Paolo Bonzini
2015-07-06 15:35 ` Eric Auger
2015-07-06 15:57 ` Paolo Bonzini
2015-07-06 17:09 ` Eric Auger
2015-07-06 17:41 ` Paolo Bonzini
2015-07-07 7:10 ` Eric Auger
2015-07-07 8:58 ` Paolo Bonzini [this message]
2015-07-07 10:58 ` Wu, Feng
2015-07-07 11:00 ` Paolo Bonzini
2015-07-07 11:13 ` Wu, Feng
2015-07-07 11:13 ` Paolo Bonzini
2015-07-07 11:18 ` Wu, Feng
2015-07-07 11:21 ` Paolo Bonzini
2015-07-07 11:24 ` Wu, Feng
2015-07-07 11:33 ` Wu, Feng
2015-07-07 13:22 ` Paolo Bonzini
2015-07-06 12:11 ` [RFC v2 4/6] KVM: create kvm_irqfd.h Eric Auger
2015-07-06 12:11 ` [RFC v2 5/6] KVM: introduce kvm_arch functions for IRQ bypass Eric Auger
2015-07-06 12:11 ` [RFC v2 6/6] KVM: eventfd: add irq bypass consumer management Eric Auger
2015-07-07 8:47 ` Wu, Feng
2015-07-07 9:05 ` Eric Auger
2015-07-07 9:13 ` Wu, Feng
2015-07-07 17:17 ` [RFC v2 0/6] IRQ bypass manager and irqfd consumer Alex Williamson
2015-07-09 12:28 ` Joerg Roedel
2015-07-09 14:13 ` Alex Williamson
2015-07-09 14:38 ` Paolo Bonzini
2015-07-09 15:34 ` Joerg Roedel
2015-07-09 16:06 ` Alex Williamson
2015-07-24 1:27 ` Wu, Feng
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