From: Kevin Wolf <kwolf@redhat.com>
To: Jamie Lokier <jamie@shareable.org>
Cc: Amit Shah <amit.shah@redhat.com>,
QEMU Developers <qemu-devel@nongnu.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [Qemu-devel] [PATCH] Add new block driver for the VDI format (use aio)
Date: Tue, 28 Jul 2009 11:11:17 +0200 [thread overview]
Message-ID: <4A6EC0B5.7020100@redhat.com> (raw)
In-Reply-To: <20090728090300.GB21321@shareable.org>
Jamie Lokier schrieb:
> Daniel P. Berrange wrote:
>>> By the way, why is fallocate() support being added to libvirt to
>>> improve disk image creation, instead of to qemu-img?
>> libvirt has to work with more than just QEMU. Thus it has a built in
>> support for creating raw files, and this is where we added fallocate
>> support. It also has ability to call out to hypervisor specific tools
>> for creating non-raw formats. We support qemu-img, and qcow-create (the
>> latter from Xen)
>
> Ok. It sounds like fallocate() support would be useful for qemu-img
> too (even if libvirt is used to manage it, if it didn't produce it).
I agree, fallocate seems to be the right way to implement my suggestion
of a generic preallocate option in qemu-img. It's on my list, so I'm
going to work on it when I come back from vacation in two weeks.
Kevin
next prev parent reply other threads:[~2009-07-28 9:12 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-03 19:24 [Qemu-devel] [PATCH] RFC: Add new block driver for the VDI format Stefan Weil
2009-07-03 19:29 ` [Qemu-devel] [PATCH] Check availability of uuid header / lib Stefan Weil
2009-07-03 19:29 ` [Qemu-devel] [PATCH] Add new block driver for the VDI format Stefan Weil
2009-07-05 8:05 ` Christoph Hellwig
2009-07-05 14:02 ` Stefan Weil
2009-07-06 10:25 ` Christoph Hellwig
2009-07-06 17:19 ` Stefan Weil
2009-07-05 14:44 ` Kevin Wolf
2009-07-06 13:37 ` [Qemu-devel] [PATCH] RFC: " Anthony Liguori
2009-07-06 21:10 ` Stefan Weil
2009-07-06 21:28 ` Anthony Liguori
2009-07-07 7:55 ` Kevin Wolf
2009-07-07 9:04 ` Jamie Lokier
2009-07-07 10:30 ` Christoph Hellwig
2009-07-07 10:33 ` Kevin Wolf
2009-08-02 14:27 ` Avi Kivity
2009-08-03 2:25 ` Anthony Liguori
2009-08-03 13:02 ` Avi Kivity
2009-08-03 15:20 ` Christoph Hellwig
2009-07-23 15:58 ` [Qemu-devel] [PATCH] RFC: Add new block driver for the VDI format (aio version) Stefan Weil
2009-07-23 20:27 ` [Qemu-devel] [PATCH] Check availability of uuid header / lib Stefan Weil
2009-07-24 6:32 ` Christoph Egger
2009-10-01 18:13 ` Stefan Weil
2009-10-02 8:32 ` Christoph Egger
2009-10-01 18:10 ` [Qemu-devel] [PATCH] Check availability of uuid header / library Stefan Weil
2009-07-23 20:29 ` [Qemu-devel] [PATCH] Add new block driver for the VDI format (use aio) Stefan Weil
2009-07-24 9:18 ` Kevin Wolf
2009-07-24 16:20 ` Stefan Weil
2009-07-27 8:00 ` Kevin Wolf
2009-07-27 9:23 ` Jamie Lokier
2009-07-28 6:37 ` Amit Shah
2009-07-28 8:34 ` Jamie Lokier
2009-07-28 8:56 ` Daniel P. Berrange
2009-07-28 9:03 ` Jamie Lokier
2009-07-28 9:11 ` Kevin Wolf [this message]
2009-07-31 15:04 ` Christoph Hellwig
2009-07-31 19:53 ` Stefan Weil
2009-07-31 15:25 ` Anthony Liguori
2009-07-31 18:27 ` Stefan Weil
2009-07-31 19:45 ` [Qemu-devel] [PATCH] Add new block driver for the VDI format (only aio supported) Stefan Weil
2009-07-23 20:30 ` [Qemu-devel] [PATCH] add support for new option of vdi format Stefan Weil
2009-07-23 20:34 ` [Qemu-devel] " Stefan Weil
2009-07-31 14:59 ` [Qemu-devel] " Christoph Hellwig
2009-08-13 16:53 ` Christoph Hellwig
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