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Re: [Qemu-devel] Trying to get fstrim / discard=unmap to work
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From: |
Richard W.M. Jones |
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Subject: |
Re: [Qemu-devel] Trying to get fstrim / discard=unmap to work |
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Date: |
Mon, 10 Mar 2014 17:15:50 +0000 |
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User-agent: |
Mutt/1.5.20 (2009-12-10) |
On Mon, Mar 10, 2014 at 05:57:01PM +0100, Paolo Bonzini wrote:
> Il 10/03/2014 17:14, Richard W.M. Jones ha scritto:
> >On Mon, Mar 10, 2014 at 04:11:20PM +0000, Richard W.M. Jones wrote:
> >>Guest:
> >> - guest kernel: 3.13.4-200.fc20.x86_64
> >> - ext4 guest filesystem
> >> - fstrim from util-linux 2.24.1
> >> - cat /sys/block/sda/device/scsi_disk/*/provisioning_mode
> >> unmap
> >
> >I noticed that I wasn't mounting the guest filesystem with '-o discard'.
> >However it still doesn't work even after adding this option.
>
> Works here:
Indeed. And now it works here too. Very strange, and sorry for
the noise.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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