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Date: Wed, 26 Feb 2014 11:14:04 +0100
From: Peter Lieven <pl@kamp.de>
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Subject: [Qemu-devel] qemu-img convert cache mode for source
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To: Paolo Bonzini <pbonzini@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

Hi,

I was wondering if it would be a good idea to set the O_DIRECT mode for the source
files of a qemu-img convert process if the source is a host_device?

Currently the backup of a host device is polluting the page cache.

Peter