[v1] Fix qcow2 fully allocated filesystem objects.

[libvirt] [PATCH v1 0/2] Fix qcow2 fully allocated filesystem objects.

Wim Ten Have posted 2 patches 6 years ago

Diff against v2
Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/libvirt tags/patchew/20180403141407.13164-1-wim.ten.have@oracle.com

Test syntax-check passed

There is a newer version of this series

include/libvirt/libvirt-storage.h                   |  5 ++++-
src/storage/storage_util.c                          | 21 +++++++++++++++++----
.../qcow2-nocapacity-convert-prealloc.argv          |  2 +-
3 files changed, 22 insertions(+), 6 deletions(-)

Expand all Fold all

[libvirt] [PATCH v1 0/2] Fix qcow2 fully allocated filesystem objects.

Posted by Wim Ten Have 6 years ago

From: Wim ten Have <wim.ten.have@oracle.com>

When tools like virt-install request to create a fully allocated
filesystem object storage by setting the parameter sparse=no, libvirt
doesn't allow that to happen for qcow2 formatted files.

Regardless of its XML instuction request libvirt always targets its
filesystem object storage with preallocation=metadata if format=qcow2
is in effect.  This results in sparse files which could cause problems
since total image storage potentially can overrun actual filesystem
available space.

(NOTE: This is a RESEND holding corrected cover letter and commit
  messages / Subject headers.)

Wim ten Have (2):
  storage: extend preallocation flags support for qemu-img
  tests: add qemu-img test for preallocation=falloc

 include/libvirt/libvirt-storage.h                   |  5 ++++-
 src/storage/storage_util.c                          | 21 +++++++++++++++++----
 .../qcow2-nocapacity-convert-prealloc.argv          |  2 +-
 3 files changed, 22 insertions(+), 6 deletions(-)

-- 
2.14.3

--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list