From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: [PATCH] Disk image shared and exclusive locks.
Date: Mon, 07 Dec 2009 15:38:50 +0100 [thread overview]
Message-ID: <hfj41q$850$2@ger.gmane.org> (raw)
In-Reply-To: <4B1D057F.9000708@codemonkey.ws>
On 12/07/2009 02:39 PM, Anthony Liguori wrote:
>
> That's a use-case that needs to be thought through. Maybe commit should
> attempt to force the lower level to acquire a write lock first?
Yes. This is an argument in favor of a "DWIM" lock option instead of
giving shared/exclusive choice to the user: do not say what kind of
operation you want to do, and let commit upgrade the lock in the future.
If the management tools wants to force shared/exclusive, they can do the
locking themselves and tell QEMU to not lock.
Paolo
next prev parent reply other threads:[~2009-12-07 14:40 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-04 16:53 [Qemu-devel] [PATCH] Disk image shared and exclusive locks Richard W.M. Jones
2009-12-04 17:15 ` Anthony Liguori
2009-12-04 21:57 ` Richard W.M. Jones
2009-12-04 22:29 ` Anthony Liguori
2009-12-05 17:31 ` Avi Kivity
2009-12-05 17:47 ` Anthony Liguori
2009-12-05 17:55 ` Avi Kivity
2009-12-05 17:59 ` Anthony Liguori
2009-12-07 10:31 ` Jamie Lokier
2009-12-07 10:42 ` Kevin Wolf
2009-12-07 10:48 ` Avi Kivity
2009-12-07 10:56 ` Kevin Wolf
2009-12-07 11:28 ` Jamie Lokier
2009-12-07 11:51 ` Kevin Wolf
2009-12-07 12:06 ` Daniel P. Berrange
2009-12-07 10:45 ` Daniel P. Berrange
2009-12-07 11:19 ` Jamie Lokier
2009-12-07 11:30 ` Daniel P. Berrange
2009-12-07 11:31 ` Richard W.M. Jones
2009-12-07 11:38 ` Jamie Lokier
2009-12-07 11:49 ` Daniel P. Berrange
2009-12-07 11:59 ` Richard W.M. Jones
2009-12-07 14:35 ` [Qemu-devel] " Paolo Bonzini
2009-12-07 13:43 ` [Qemu-devel] " Anthony Liguori
2009-12-07 14:01 ` Daniel P. Berrange
2009-12-07 14:15 ` Anthony Liguori
2009-12-07 14:28 ` Daniel P. Berrange
2009-12-07 14:53 ` Anthony Liguori
2009-12-08 9:40 ` Kevin Wolf
2009-12-07 11:04 ` Richard W.M. Jones
2009-12-07 10:58 ` Richard W.M. Jones
2009-12-07 11:35 ` Jamie Lokier
2009-12-07 13:39 ` Anthony Liguori
2009-12-07 14:08 ` Richard W.M. Jones
2009-12-07 14:22 ` Anthony Liguori
2009-12-07 14:31 ` Richard W.M. Jones
2009-12-07 14:55 ` Anthony Liguori
2009-12-08 9:48 ` Kevin Wolf
2009-12-08 10:16 ` Richard W.M. Jones
2009-12-07 14:38 ` Paolo Bonzini [this message]
2009-12-07 9:38 ` Daniel P. Berrange
2009-12-07 10:39 ` Chris Webb
2009-12-07 13:32 ` Anthony Liguori
2009-12-07 13:38 ` Chris Webb
2009-12-07 13:47 ` Anthony Liguori
2009-12-07 14:25 ` Daniel P. Berrange
2009-12-07 14:58 ` Chris Webb
2009-12-07 14:16 ` [Qemu-devel] [PATCH VERSION 2] " Richard W.M. Jones
2009-12-07 15:06 ` Anthony Liguori
2009-12-08 8:48 ` [Qemu-devel] " Paolo Bonzini
2009-12-08 10:00 ` [Qemu-devel] " Kevin Wolf
2009-12-08 10:25 ` Richard W.M. Jones
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