linux-kernel - [PATCHv6 0/2] net: fix race in the receive/select

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Message-ID: <20090708194726.GA3196@jolsa.lab.eng.brq.redhat.com>
Date:	Wed, 8 Jul 2009 21:47:26 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	netdev@...r.kernel.org
Cc:	eric.dumazet@...il.com, mathieu.desnoyers@...ymtl.ca,
	mingo@...e.hu, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org, fbl@...hat.com, nhorman@...hat.com,
	htejun@...il.com, jarkao2@...il.com, oleg@...hat.com,
	davidel@...ilserver.org, davem@...emloft.net
Subject: [PATCHv6 0/2] net: fix race in the receive/select

This patchset fixies the race within the poll_wait call and the receive callbacks,
by adding memory barrier.

- 1/2 includes the actual fix
- 2/2 includes optimization for the x86 arch

It is discussed and described in the following discussions:

http://lkml.org/lkml/2009/6/18/124
http://lkml.org/lkml/2009/6/25/188
http://lkml.org/lkml/2009/6/29/216
http://lkml.org/lkml/2009/7/3/68

Patchset is made on top of Linus'es tree 44b572809581d5a10dbe35aa6bf689f32b9c5ad6 .

Booted on x86_64.

wbr,
jirka

---
 arch/x86/include/asm/spinlock.h |    4 ++
 include/linux/spinlock.h        |    5 +++
 include/net/sock.h              |   69 +++++++++++++++++++++++++++++++++++++++
 net/atm/common.c                |    6 ++--
 net/core/datagram.c             |    2 +-
 net/core/sock.c                 |    8 ++--
 net/dccp/output.c               |    2 +-
 net/dccp/proto.c                |    2 +-
 net/ipv4/tcp.c                  |    2 +-
 net/iucv/af_iucv.c              |    4 +-
 net/rxrpc/af_rxrpc.c            |    4 +-
 net/unix/af_unix.c              |    8 ++--
 12 files changed, 97 insertions(+), 19 deletions(-)
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