From: Paolo Bonzini <pbonzini@redhat.com>
To: Oleg Nesterov <oleg@redhat.com>,
Avi Kivity <avi.kivity@gmail.com>, Gleb Natapov <gleb@kernel.org>
Cc: Dominik Dingel <dingel@linux.vnet.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Andrea Arcangeli <aarcange@redhat.com>
Subject: Re: [PATCH 0/2] KVM: async_pf: use_mm/mm_users fixes
Date: Mon, 28 Apr 2014 13:06:05 +0200 [thread overview]
Message-ID: <535E361D.3050902@redhat.com> (raw)
In-Reply-To: <20140421132543.GA13594@redhat.com>
Il 21/04/2014 15:25, Oleg Nesterov ha scritto:
> Hello.
>
> Completely untested and I know nothing about kvm ;) Please review.
>
> But use_mm() really looks misleading, and the usage of mm_users looks
> "obviously wrong". I already sent this change while we were discussing
> vmacache, but it was ignored. Since then kvm_async_page_present_sync()
> was added into async_pf_execute() into async_pf_execute(), but it seems
> to me that use_mm() is still unnecessary.
>
> Oleg.
>
> virt/kvm/async_pf.c | 10 ++++------
> 1 files changed, 4 insertions(+), 6 deletions(-)
>
Applying patch 2 to kvm/master (for 3.15).
Patch 1 will be for 3.16 only, I'd like a review from Marcelo or Andrea
though (that's "KVM: async_pf: kill the unnecessary use_mm/unuse_mm
async_pf_execute()" for easier googling).
Paolo
next prev parent reply other threads:[~2014-04-28 11:06 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-21 13:25 [PATCH 0/2] KVM: async_pf: use_mm/mm_users fixes Oleg Nesterov
2014-04-21 13:25 ` [PATCH 1/2] KVM: async_pf: kill the unnecessary use_mm/unuse_mm async_pf_execute() Oleg Nesterov
2014-04-22 20:15 ` Christian Borntraeger
2014-04-22 21:07 ` Christian Borntraeger
2014-04-23 19:32 ` Oleg Nesterov
2014-04-28 14:06 ` Andrea Arcangeli
2014-04-28 15:31 ` Paolo Bonzini
2014-04-21 13:26 ` [PATCH 2/2] KVM: async_pf: mm->mm_users can not pin apf->mm Oleg Nesterov
2014-04-22 20:24 ` Christian Borntraeger
2014-04-24 14:27 ` [PATCH 0/2] KVM: async_pf: use_mm/mm_users fixes Christian Borntraeger
2014-04-24 14:55 ` Oleg Nesterov
2014-04-28 11:06 ` Paolo Bonzini [this message]
2014-04-28 14:15 ` Andrea Arcangeli
2014-04-28 15:02 ` [PATCH 3/2] KVM: async_pf: change async_pf_execute() to use get_user_pages(tsk => NULL) Oleg Nesterov
2014-04-28 15:03 ` Oleg Nesterov
2014-04-28 15:27 ` Paolo Bonzini
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