linux-kernel - Re: [PATCH] Prevent immediate process rescheduling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Mon, 21 Sep 2009 00:55:58 +0300
From:	Avi Kivity <avi@...hat.com>
To:	"Langsdorf, Mark" <mark.langsdorf@....com>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>, Mike Galbraith <efault@....de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Prevent immediate process rescheduling

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.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/