From: Jiri Olsa <jolsa@redhat.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, fbl@redhat.com, nhorman@redhat.com,
davem@redhat.com, htejun@gmail.com, jarkao2@gmail.com,
oleg@redhat.com, davidel@xmailserver.org, eric.dumazet@gmail.com
Subject: [PATCHv5 0/2] net: fix race in the receive/select
Date: Fri, 3 Jul 2009 10:12:19 +0200 [thread overview]
Message-ID: <20090703081219.GE2902@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
Patchset is made on top of Linus'es tree 7c5371c403abb29f01bc6cff6c5096abdf2dc524 .
Booted on x86_64.
wbr,
jirka
---
arch/x86/include/asm/spinlock.h | 3 ++
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, 96 insertions(+), 19 deletions(-)
next reply other threads:[~2009-07-03 8:12 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-03 8:12 Jiri Olsa [this message]
2009-07-03 8:13 ` [PATCHv5 1/2] net: adding memory barrier to the poll and receive callbacks Jiri Olsa
2009-07-07 15:56 ` Eric Dumazet
2009-07-03 8:14 ` [PATCHv5 2/2] memory barrier: adding smp_mb__after_lock Jiri Olsa
2009-07-03 9:06 ` Ingo Molnar
2009-07-03 9:20 ` Eric Dumazet
2009-07-03 9:24 ` Ingo Molnar
2009-07-03 9:56 ` Jiri Olsa
2009-07-03 10:25 ` Ingo Molnar
2009-07-03 11:18 ` Jiri Olsa
2009-07-03 11:30 ` Jarek Poplawski
2009-07-03 11:43 ` Jiri Olsa
2009-07-07 10:18 ` Jiri Olsa
2009-07-07 13:46 ` Jiri Olsa
2009-07-07 14:01 ` Mathieu Desnoyers
2009-07-07 14:34 ` Oleg Nesterov
2009-07-07 15:04 ` Mathieu Desnoyers
2009-07-07 15:44 ` Oleg Nesterov
2009-07-07 15:50 ` Peter Zijlstra
2009-07-07 19:45 ` Mathieu Desnoyers
2009-07-07 22:44 ` Eric Dumazet
2009-07-07 23:28 ` Mathieu Desnoyers
2009-07-07 23:51 ` Oleg Nesterov
2009-07-08 4:34 ` Mathieu Desnoyers
2009-07-08 7:18 ` Jarek Poplawski
2009-07-07 14:34 ` Jiri Olsa
2009-07-07 14:42 ` Eric Dumazet
2009-07-07 14:57 ` Mathieu Desnoyers
2009-07-07 15:23 ` Eric Dumazet
2009-07-08 17:47 ` Jiri Olsa
2009-07-08 18:07 ` David Miller
2009-07-08 18:16 ` Jiri Olsa
2009-07-03 14:04 ` Mathieu Desnoyers
2009-07-03 15:29 ` Herbert Xu
2009-07-03 15:37 ` Eric Dumazet
2009-07-03 15:47 ` Mathieu Desnoyers
2009-07-03 17:06 ` Paul E. McKenney
2009-07-03 17:31 ` Mathieu Desnoyers
2009-07-03 15:40 ` Mathieu Desnoyers
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