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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: "kvm@vger.kernel.org mailing list" <kvm@vger.kernel.org>,
	Alexey Kardashevskiy <aik@ozlabs.ru>,
	Joerg Roedel <joro@8bytes.org>,
	Rusty Russell <rusty@rustcorp.com.au>,
	Alexander Graf <agraf@suse.de>,
	kvm-ppc@vger.kernel.org, open list <linux-kernel@vger.kernel.org>,
	Alex Williamson <alex.williamson@redhat.com>,
	Paul Mackerras <paulus@samba.org>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 3/4] KVM: PPC: Add support for IOMMU in-kernel handling
Date: Thu, 20 Jun 2013 17:47:29 +1000	[thread overview]
Message-ID: <1371714449.3944.14.camel@pasglop> (raw)
In-Reply-To: <20130620052822.GB3140@voom.redhat.com>

On Thu, 2013-06-20 at 15:28 +1000, David Gibson wrote:
> > Just out of curiosity - would not get_file() and fput_atomic() on a
> group's
> > file* do the right job instead of vfio_group_add_external_user() and
> > vfio_group_del_external_user()?
> 
> I was thinking that too.  Grabbing a file reference would certainly be
> the usual way of handling this sort of thing.

But that wouldn't prevent the group ownership to be returned to
the kernel or another user would it ?

Ben.

  reply	other threads:[~2013-06-20  7:47 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-05  6:11 [PATCH 0/4 v3] KVM: PPC: IOMMU in-kernel handling Alexey Kardashevskiy
2013-06-05  6:11 ` [PATCH 1/4] KVM: PPC: Add support for multiple-TCE hcalls Alexey Kardashevskiy
2013-06-16  4:20   ` Benjamin Herrenschmidt
2013-06-16 22:06   ` Alexander Graf
2013-06-17  7:55     ` Alexey Kardashevskiy
2013-06-17  8:02       ` Alexander Graf
2013-06-17  8:34         ` Alexey Kardashevskiy
2013-06-17  8:40           ` Alexander Graf
2013-06-17  8:51             ` Alexey Kardashevskiy
2013-06-17 10:46               ` Alexander Graf
2013-06-17 10:48                 ` Alexander Graf
2013-06-17  8:37       ` Benjamin Herrenschmidt
2013-06-17  8:42         ` Alexander Graf
2013-06-05  6:11 ` [PATCH 2/4] powerpc: Prepare to support kernel handling of IOMMU map/unmap Alexey Kardashevskiy
2013-06-16  4:26   ` Benjamin Herrenschmidt
2013-06-16  4:31     ` Benjamin Herrenschmidt
2013-06-17  9:17     ` Alexey Kardashevskiy
2013-06-05  6:11 ` [PATCH 3/4] KVM: PPC: Add support for IOMMU in-kernel handling Alexey Kardashevskiy
2013-06-16  4:39   ` Benjamin Herrenschmidt
2013-06-19  3:17     ` Alexey Kardashevskiy
2013-06-16 22:25   ` Alexander Graf
2013-06-16 22:39   ` Benjamin Herrenschmidt
2013-06-17  3:13     ` Alex Williamson
2013-06-17  3:56       ` Benjamin Herrenschmidt
2013-06-18  2:32         ` Alex Williamson
2013-06-18  4:38           ` Benjamin Herrenschmidt
2013-06-18 14:48             ` Alex Williamson
2013-06-18 21:58               ` Benjamin Herrenschmidt
2013-06-19  3:35           ` Rusty Russell
2013-06-19  4:59             ` Benjamin Herrenschmidt
2013-06-19  9:58               ` Alexander Graf
2013-06-19 14:50                 ` Benjamin Herrenschmidt
2013-06-19 15:49                   ` Alex Williamson
2013-06-20  4:58                     ` Alexey Kardashevskiy
2013-06-20  5:28                       ` David Gibson
2013-06-20  7:47                         ` Benjamin Herrenschmidt [this message]
2013-06-20  8:48                           ` Alexey Kardashevskiy
2013-06-20 14:55                             ` Alex Williamson
2013-06-22  8:25                               ` Alexey Kardashevskiy
2013-06-22 12:03                               ` David Gibson
2013-06-22 14:28                                 ` Alex Williamson
2013-06-24  3:52                                   ` David Gibson
2013-06-24  4:41                                     ` Alex Williamson
2013-06-27 11:01                                       ` David Gibson
2013-06-22 23:28                                 ` Benjamin Herrenschmidt
2013-06-24  3:54                                   ` David Gibson
2013-06-24  3:58                                     ` Benjamin Herrenschmidt
2013-06-05  6:11 ` [PATCH 4/4] KVM: PPC: Add hugepage " Alexey Kardashevskiy
2013-06-16  4:46   ` Benjamin Herrenschmidt
2013-06-17 16:35   ` Paolo Bonzini
2013-06-12  3:14 ` [PATCH 0/4 v3] KVM: PPC: " Benjamin Herrenschmidt
  -- strict thread matches above, loose matches on Subject: below --
2013-05-21  3:06 [PATCH 0/4 v2] " Alexey Kardashevskiy
2013-05-21  3:06 ` [PATCH 3/4] KVM: PPC: Add support for " Alexey Kardashevskiy
2013-05-22 21:06   ` Scott Wood
2013-05-25  2:45     ` David Gibson
2013-05-27  2:44       ` Alexey Kardashevskiy
2013-05-28 17:45         ` Scott Wood
2013-05-28 23:30           ` Alexey Kardashevskiy
2013-05-28 23:35             ` Scott Wood
2013-05-29  0:12               ` Alexey Kardashevskiy
2013-05-29 20:05                 ` Scott Wood
2013-05-29 23:10                   ` Alexey Kardashevskiy
2013-05-29 23:14                     ` Scott Wood
2013-05-29 23:29                       ` Alexey Kardashevskiy
2013-05-29 23:32                         ` Scott Wood
2013-05-27 10:23       ` Paolo Bonzini
2013-05-27 14:26         ` Alexey Kardashevskiy
2013-05-27 14:41           ` Paolo Bonzini
2013-05-28 16:32       ` Scott Wood
2013-05-29  0:20         ` Alexey Kardashevskiy

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