From: Craig Gallek <kr...@google.com>
Recent changes to the datastructures associated with SO_REUSEPORT broke
an existing behavior when equivalent SO_REUSEPORT sockets are created
using both AF_INET and AF_INET6. This patch series restores the previous
behavior and includes a test to validate it.
This series should be a trivial merge to stable kernels (if deemed
necessary), but will have conflicts in net-next. The following patches
recently replaced the use of hlist_nulls with hlists for UDP and TCP
socket lists:
ca065d0cf80f ("udp: no longer use SLAB_DESTROY_BY_RCU")
3b24d854cb35 ("tcp/dccp: do not touch listener sk_refcnt under synflood")
If this series is accepted, I will send an RFC for the net-next change
to assist with the merge.
Craig Gallek (2):
soreuseport: fix ordering for mixed v4/v6 sockets
soreuseport: test mixed v4/v6 sockets
include/linux/rculist_nulls.h | 39 ++++
include/net/sock.h | 6 +-
net/ipv4/udp.c | 9 +-
tools/testing/selftests/net/.gitignore | 1 +
tools/testing/selftests/net/Makefile | 2 +-
tools/testing/selftests/net/reuseport_dualstack.c | 208 ++++++++++++++++++++++
6 files changed, 261 insertions(+), 4 deletions(-)
create mode 100644 tools/testing/selftests/net/reuseport_dualstack.c
--
2.8.0.rc3.226.g39d4020
