[libvirt] [PATCH 2/2] Use posix_fallocate() to allocate disk space on supported systems

Daniel P. Berrange berrange at redhat.com
Fri Mar 20 11:12:02 UTC 2009

On Thu, Mar 19, 2009 at 08:17:54PM +0530, Amit Shah wrote:
> Make use of the safezero() function to allocate disk space instead
> of safewrite() to write zeros. The safezero() function will use
> posix_fallocate() on supported systems.
> If progress activity is not requested (current behaviour), the new
> safezero() function will allocate the file in one go.
> If progress activity is requested, allocate in 512MiB chunks.
> Signed-off-by: Amit Shah <amit.shah at redhat.com>


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