tree b8e5b9a2110628503e57149f0bb2a4bb1bf3f027
parent 8571a19c4ac140f1a507f3e7eb716892afa27109
author David S. Miller <davem@davemloft.net> 1296194513 -0800
committer David S. Miller <davem@davemloft.net> 1296194513 -0800

net: Pre-COW metrics for TCP.

TCP is going to record metrics for the connection,
so pre-COW the route metrics at route cache entry
creation time.

This avoids several atomic operations that have to
occur if we COW the metrics after the entry reaches
global visibility.

Signed-off-by: David S. Miller <davem@davemloft.net>