On 09/27/2016 06:14 AM, Fam Zheng wrote: > We already specified BDRV_O_UNMAP when opening images in 'qemu-img > commit', but didn't turn on the "unmap" in the active commit job. This > patch fixes that so that zeroed clusters in top image can be discarded > which is desired in the virt-sparsify use case, where a temporary > overlay is created and fstrim'ed before commiting back, to free space in
s/commiting/committing/ > the original image. > > This also enables it for block-commit. > > Signed-off-by: Fam Zheng <f...@redhat.com> > --- > v3: Change the right parameter. > v2: Add "unmap" to block-commit as well. [Kevin] > --- > block/mirror.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > Reviewed-by: Eric Blake <ebl...@redhat.com> -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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