tree c8788a1e3de08100bca341fa4180adfe5d02880f
parent bbaffaca4810de1a25e32ecaf836eeaacc7a3d11
author Eric Dumazet <dada1@cosmosbay.com> 1226893161 -0800
committer David S. Miller <davem@davemloft.net> 1226893161 -0800

udp: Use hlist_nulls in UDP RCU code

This is a straightforward patch, using hlist_nulls infrastructure.

RCUification already done on UDP two weeks ago.

Using hlist_nulls permits us to avoid some memory barriers, both
at lookup time and delete time.

Patch is large because it adds new macros to include/net/sock.h.
These macros will be used by TCP & DCCP in next patch.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>