From: Avi Kivity <avi@redhat.com>
To: Christoph Hellwig <hch@lst.de>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/3] write barrier support
Date: Tue, 05 May 2009 16:53:25 +0300 [thread overview]
Message-ID: <4A0044D5.5010402@redhat.com> (raw)
In-Reply-To: <20090505120804.GA30651@lst.de>
Christoph Hellwig wrote:
> Add support for write barriers that allow guests to control write
> ordering when write back cachin is enabled.
>
> For now only the simple stack of virtio on posix raw/host devices is
> supported.
>
I suggest emulating barriers for format drivers that don't support them
by queuing the writes in the block layer and issuing a flush_all command.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-05-05 13:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-05 12:08 [Qemu-devel] [PATCH 0/3] write barrier support Christoph Hellwig
2009-05-05 12:08 ` [Qemu-devel] barriers: block layer preparations Christoph Hellwig
2009-05-05 13:51 ` Avi Kivity
2009-05-05 15:38 ` Jamie Lokier
2009-05-05 15:49 ` Avi Kivity
2009-05-05 16:00 ` Jamie Lokier
2009-05-05 20:57 ` Christoph Hellwig
2009-05-05 22:49 ` Jamie Lokier
2009-05-05 12:08 ` [Qemu-devel] [PATCH 2/3] barriers: block-raw-posix barrier support Christoph Hellwig
2009-05-05 12:33 ` Jamie Lokier
2009-05-05 13:29 ` Christoph Hellwig
2009-05-05 16:00 ` Jamie Lokier
2009-05-05 12:09 ` [Qemu-devel] [PATCH 3/3] barriers: virtio Christoph Hellwig
2009-05-05 13:53 ` Avi Kivity [this message]
2009-05-05 21:00 ` [Qemu-devel] [PATCH 0/3] write barrier support Christoph Hellwig
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