tree 84ff34e13792073b32e8e767f47598e373d2689d
parent 832d11c5cd076abc0aa1eaf7be96c81d1a59ce41
author Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> 1227590816 -0800
committer David S. Miller <davem@davemloft.net> 1227590816 -0800

tcp: Make shifting not clear the hints

The earlier version was just very basic one which is "playing
safe" by always clearing the hints. However, clearing of a hint
is extremely costly operation with large windows, so it must be
avoided at all cost whenever possible, there is a way with
shifting too achieve not-clearing.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>