inet: Add family scope inetpeer flushes.
authorDavid S. Miller <davem@davemloft.net>
Sun, 10 Jun 2012 07:24:21 +0000 (00:24 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 11 Jun 2012 09:09:10 +0000 (02:09 -0700)
commitb48c80ece973e9eddb042f6685b482b261ff0d47
tree30262edc9721ac70e423bcc8d51f558d2962b539
parent46517008e1168dc926cf2c47d529efc07eca85c0
inet: Add family scope inetpeer flushes.

This implementation can deal with having many inetpeer roots, which is
a necessary prerequisite for per-FIB table rooted peer tables.

Each family (AF_INET, AF_INET6) has a sequence number which we bump
when we get a family invalidation request.

Each peer lookup cheaply checks whether the flush sequence of the
root we are using is out of date, and if so flushes it and updates
the sequence number.

Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/inetpeer.h
net/ipv4/inetpeer.c
net/ipv4/route.c