78a5822820
In order to support a new update function, a flag needs to be passed to the kernel via the socket send call (MSG_MORE) to notify it that more data is to be expected to calculate the hash correctly. Add a new iov helper for this purpose. Signed-off-by: Alejandro Zeise <alejandro.zeise@seagate.com> [ clg: - Split iov changes from original patch - Checkpatch fixes ] Signed-off-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>