From: Kevin Wolf <kwolf@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: qemu-devel@nongnu.org, hch@lst.de
Subject: [Qemu-devel] Re: [PATCH] Add cache=volatile parameter to -drive
Date: Mon, 17 May 2010 12:42:50 +0200 [thread overview]
Message-ID: <4BF11DAA.4080400@redhat.com> (raw)
In-Reply-To: <1274091292-4812-1-git-send-email-agraf@suse.de>
Am 17.05.2010 12:14, schrieb Alexander Graf:
> Usually the guest can tell the host to flush data to disk. In some cases we
> don't want to flush though, but try to keep everything in cache.
>
> So let's add a new cache value to -drive that allows us to set the cache
> policy to most aggressive, disabling flushes. We call this mode "volatile",
> as guest data is not guaranteed to survive host crashes anymore.
>
> This patch also adds a noop function for aio, so we can do nothing in AIO
> fashion.
>
> Signed-off-by: Alexander Graf <agraf@suse.de>
Thanks, looks good to me now. Applied it to the block branch, but
depending on Anthony's opinion I might drop it again.
Kevin
next prev parent reply other threads:[~2010-05-17 10:43 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-17 10:14 [Qemu-devel] [PATCH] Add cache=volatile parameter to -drive Alexander Graf
2010-05-17 10:42 ` Kevin Wolf [this message]
2010-05-17 12:58 ` [Qemu-devel] " Anthony Liguori
2010-05-17 13:02 ` Alexander Graf
2010-05-17 13:09 ` Anthony Liguori
2010-05-17 13:17 ` Alexander Graf
2010-05-17 13:26 ` Anthony Liguori
2010-05-17 14:04 ` Alexander Graf
2010-05-17 14:22 ` Alexander Graf
2010-05-17 15:16 ` Anthony Liguori
2010-05-17 16:23 ` Paul Brook
2010-05-17 16:26 ` Anthony Liguori
2010-05-17 16:28 ` Alexander Graf
2010-05-17 20:07 ` Jamie Lokier
2010-05-18 7:42 ` Kevin Wolf
2010-05-25 17:59 ` Alexander Graf
2010-05-25 18:48 ` Anthony Liguori
2010-05-25 19:01 ` Alexander Graf
2010-05-26 13:09 ` Avi Kivity
2010-05-25 21:01 ` Aurelien Jarno
2010-05-26 1:31 ` Anthony Liguori
2010-05-26 8:43 ` Kevin Wolf
2010-05-26 13:42 ` Anthony Liguori
2010-05-26 14:03 ` Kevin Wolf
2010-05-26 14:08 ` Anthony Liguori
2010-05-26 14:26 ` Kevin Wolf
2010-05-26 14:13 ` Aurelien Jarno
2010-05-26 8:52 ` Aurelien Jarno
2010-05-26 9:16 ` Kevin Wolf
2010-05-26 13:48 ` Anthony Liguori
2010-05-26 14:12 ` Aurelien Jarno
2010-05-26 14:19 ` Anthony Liguori
2010-05-26 15:40 ` Aurelien Jarno
2010-05-26 16:11 ` Anthony Liguori
2010-05-26 14:27 ` Paolo Bonzini
2010-05-26 13:06 ` Avi Kivity
2010-05-26 13:50 ` Anthony Liguori
2010-05-26 15:13 ` Avi Kivity
2010-05-17 15:11 ` Anthony Liguori
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