tcp: Merge common sequence logic from tcp_{buf,vu}_data_from_sock()

tcp_buf_data_from_sock() and tcp_vu_data_from_sock() start with some
identical logic to compute the amount of data from the socket that has
already been sent to tap but not acked.  Replace it with a single copy in
their common caller tcp_data_from_sock(), passing the already_sent amount
in as a parameter.

This does mean that we now execute this logic in the VU case even if the
queue is not active.  The logic is still valid in this case, and we don't
need to worry too much about wasting cycles in this edge case.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

0 files changed, 0 insertions, 0 deletions