From: Wim ten Have <wim.ten.have@xxxxxxxxxx> 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@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
