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Re: [Qemu-devel] ]PATCH 0/7] add TRIM/UNMAP support, v3

From: Christoph Hellwig
Subject: Re: [Qemu-devel] ]PATCH 0/7] add TRIM/UNMAP support, v3
Date: Mon, 13 Dec 2010 16:45:12 +0100
User-agent: Mutt/1.3.28i

On Sun, Dec 12, 2010 at 03:28:14PM +0000, Stefan Hajnoczi wrote:
> Do you have qemu-io support for discard?

Now that you wrote it we have the support :)

> Any hints on testing this?  A recent guest kernel and ext -o discard
> might exercise the code but I haven't tried yet.

Anything that submits a discard in the guest is fine.  The simples thing
to test are the various mkfs tools, as they do a whole device discard.
Also -o discard for various Linux filesystem works, Mark Lord's wiper.sh
script, or any Windows 7 installation.

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