Re: [Qemu-devel] [PATCH v12 6/6] qcow2: Add falloc and full preallocation option

[Max Reitz]

On 11.07.2014 08:10, Hu Tao wrote:
> This adds preallocation=falloc and preallocation=full mode to qcow2
> image creation.
>
> preallocation=full allocates disk space by writing zeros to disk to
> ensure disk space in any cases.
>
> preallocation=falloc likes preallocation=full, but allocates disk space
> by posix_fallocate().
>
> Signed-off-by: Hu Tao <address@hidden>
> ---
>   block/qcow2.c              | 31 ++++++++++++++++++++++++--
>   tests/qemu-iotests/082.out | 54 +++++++++++++++++++++++-----------------------
>   2 files changed, 56 insertions(+), 29 deletions(-)

Reviewed-by: Max Reitz <address@hidden>