From: Avi Kivity <avi@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: Sasha Levin <levinsasha928@gmail.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
"linux-kernel@vger.kernel.org List"
<linux-kernel@vger.kernel.org>,
kvm@vger.kernel.org, Paul McKenney <paulmck@linux.vnet.ibm.com>
Subject: Re: async pf: INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
Date: Sun, 06 May 2012 15:00:23 +0300 [thread overview]
Message-ID: <4FA667D7.4040201@redhat.com> (raw)
In-Reply-To: <20120502120402.GM22191@redhat.com>
On 05/02/2012 03:04 PM, Gleb Natapov wrote:
> KVM: Do not take reference to mm during async #PF
>
> It turned to be totally unneeded. The reason the code was introduced is
> so that KVM can prefault swapped in page, but prefault can fail even
> if mm is pinned since page table can change anyway. KVM handles this
> situation correctly though and does not inject spurious page faults.
>
>
Applied to master for 3.4, thanks.
--
error compiling committee.c: too many arguments to function
prev parent reply other threads:[~2012-05-06 12:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CA+1xoqcPSCA+iNdMETZMhXpmGaVkC2ACCJZAt4CSBkaoVwVvGQ@mail.gmail.com>
2012-04-27 15:23 ` async pf: INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected Paul E. McKenney
2012-04-27 18:05 ` Sasha Levin
2012-04-27 18:14 ` Paul E. McKenney
2012-05-02 12:04 ` Gleb Natapov
2012-05-06 12:00 ` Avi Kivity [this message]
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