netdev - [RFC net-next 0/2] udp: use standard RCU rules

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Date:	Fri, 25 Mar 2016 15:29:22 -0700
From:	Eric Dumazet <edumazet@...gle.com>
To:	"David S . Miller" <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Tom Herbert <tom@...bertland.com>
Subject: [RFC net-next 0/2] udp: use standard RCU rules

Add a generic facility for sockets to be freed afer an RCU grace period.

Then UDP is changed to no longer use SLAB_DESTROY_BY_RCU,
in order to speedup rx processing for traffic encapsulated in UDP.

I prepared a patch to convert TCP listeners to this infrastructure,
but will post it later, since Tom was mostly interested in UDP.

Eric Dumazet (2):
  net: add SOCK_RCU_FREE socket flag
  udp: No longer use SLAB_DESTROY_BY_RCU

 include/linux/udp.h |   8 +-
 include/net/sock.h  |  14 +--
 include/net/udp.h   |   2 +-
 net/core/sock.c     |  14 ++-
 net/ipv4/udp.c      | 290 +++++++++++++++-------------------------------------
 net/ipv4/udp_diag.c |  18 ++--
 net/ipv6/udp.c      | 194 +++++++++++------------------------
 7 files changed, 177 insertions(+), 363 deletions(-)

-- 
2.8.0.rc3.226.g39d4020