From: Avi Kivity <avi@redhat.com>
To: "Langsdorf, Mark" <mark.langsdorf@amd.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>, Mike Galbraith <efault@gmx.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Prevent immediate process rescheduling
Date: Mon, 21 Sep 2009 00:55:58 +0300 [thread overview]
Message-ID: <4AB6A4EE.3060904@redhat.com> (raw)
In-Reply-To: <DDE95BDD51FB774B804A9C029E735EE10379BEDA2F@sausexmbp02.amd.com>
On 09/21/2009 12:03 AM, Langsdorf, Mark wrote:
>> - we can pick one of the vcpus belonging to the same guest to improve
>> the probability that the lock actually get released
>>
> Is there a way to find the other vcpus belonging to the
> same guest? I poked around at that, but couldn't find
> one.
>
vcpu->kvm->vcpus[]. It doesn't give you the task_struct, but we can
easily save it in vcpu_load() and release it in vcpu_put().
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
prev parent reply other threads:[~2009-09-20 21:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-18 19:49 [PATCH] Prevent immediate process rescheduling Mark Langsdorf
2009-09-18 19:54 ` Ingo Molnar
2009-09-18 20:00 ` Langsdorf, Mark
2009-09-18 20:03 ` Peter Zijlstra
2009-09-19 2:16 ` Mike Galbraith
2009-09-19 9:03 ` Mike Galbraith
2009-09-19 8:31 ` Avi Kivity
2009-09-20 21:03 ` Langsdorf, Mark
2009-09-20 21:55 ` Avi Kivity [this message]
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