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(-)
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