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Re: [Qemu-devel] 'qemu-nbd' explicit flush
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From: |
Stefan Hajnoczi |
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Subject: |
Re: [Qemu-devel] 'qemu-nbd' explicit flush |
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Date: |
Fri, 24 May 2013 11:06:14 +0200 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Thu, May 23, 2013 at 11:35:24PM +0000, Mark Trumpold wrote:
> I had one question I forgot to ask..
>
> Is it possible to switch from '--cache=writeback' functionality
> to '--cache=writethrough' (and visa versa) while qemu-nbd is
> connected to the '/dev/nbd<x>' device?
No. The block layer APIs to do that are available in QEMU but qemu-nbd
doesn't have run-time cache mode changing.
Stefan