From: Jiri Olsa <jolsa@redhat.com>
To: netdev@vger.kernel.org
Cc: eric.dumazet@gmail.com, mathieu.desnoyers@polymtl.ca,
mingo@elte.hu, a.p.zijlstra@chello.nl,
linux-kernel@vger.kernel.org, fbl@redhat.com, nhorman@redhat.com,
htejun@gmail.com, jarkao2@gmail.com, oleg@redhat.com,
davidel@xmailserver.org, davem@davemloft.net
Subject: [PATCHv6 0/2] net: fix race in the receive/select
Date: Wed, 8 Jul 2009 21:47:26 +0200 [thread overview]
Message-ID: <20090708194726.GA3196@jolsa.lab.eng.brq.redhat.com> (raw)
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(-)
next reply other threads:[~2009-07-08 19:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-08 19:47 Jiri Olsa [this message]
2009-07-08 19:48 ` [PATCH 1/2] [PATCHv6 1/2] net: adding memory barrier to the poll and receive callbacks Jiri Olsa
2009-07-08 20:06 ` Jarek Poplawski
2009-07-08 21:51 ` Jiri Olsa
2009-07-08 19:50 ` [PATCH 2/2] [PATCHv6 2/2] memory barrier: adding smp_mb__after_lock Jiri Olsa
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