]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 571b5ff) | patch
tcp: Fix race in tcp_poll
authorTom Marshall <tdm.code@gmail.com>
Mon, 20 Sep 2010 22:42:05 +0000 (15:42 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 20 Sep 2010 22:42:05 +0000 (15:42 -0700)
commit2214a634c097b4277ea2033ce41cf99595e37b61
tree58412022664aef745a99d254d20cf1a66aabda44tree | snapshot
parent571b5ff5ae189d6a53074929f8f95ba96aafe5b5commit | diff
tcp: Fix race in tcp_poll

If a RST comes in immediately after checking sk->sk_err, tcp_poll will
return POLLIN but not POLLOUT.  Fix this by checking sk->sk_err at the end
of tcp_poll.  Additionally, ensure the correct order of operations on SMP
machines with memory barriers.

Signed-off-by: Tom Marshall <tdm.code@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp.c diff | blob | history
net/ipv4/tcp_input.c diff | blob | history
Linux Kernel Source Tree.