I think this was fixed in libvirt upstream, please reopen and correct me
if I'm wrong
commit 81a3042a12c7c06adc8e95264b6143b2eeb4953f
Author: Pavel Hrdina <phrd...@redhat.com>
Date: Tue Aug 25 15:09:53 2020 +0200
storage_util: fix qemu-img sparse allocation
Commit <c9ec7088c7a3f4cd26bb471f1f243931fff6f4f9> introduced a support
to fully allocate qcow2 images when <allocation> matches <capacity> but
it doesn't work as expected.
The issue is that info.size_arg is in KB but the info.allocation
introduced by the mentioned commit is in B. This results in using
"preallocation=falloc," in cases where "preallocation=metadata," should
be used.
Signed-off-by: Pavel Hrdina <phrd...@redhat.com>
Reviewed-by: Michal Privoznik <mpriv...@redhat.com>
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https://bugs.launchpad.net/bugs/1847105
Title:
very slow disk creation, snapshotting
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