Guillaume Nault f94601e19d netns: protect netns ID lookups with RCU ...

commit 2dce224f46 upstream.

__peernet2id() can be protected by RCU as it only calls idr_for_each(),
which is RCU-safe, and never modifies the nsid table.

rtnl_net_dumpid() can also do lockless lookups. It does two nested
idr_for_each() calls on nsid tables (one direct call and one indirect
call because of rtnl_net_dumpid_one() calling __peernet2id()). The
netnsid tables are never updated. Therefore it is safe to not take the
nsid_lock and run within an RCU-critical section instead.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>

2021-09-22 11:47:55 +02:00

..

datagram.c

net: add READ_ONCE() annotation in __skb_wait_for_more_packets()

2019-11-10 11:27:49 +01:00

dev_addr_lists.c

…

dev_ioctl.c

…

dev.c

gro: ensure frag0 meets IP header alignment

2021-08-04 12:23:44 +02:00

devlink.c

devlink: Add missing genlmsg_cancel() in devlink_nl_sb_port_pool_fill()

2020-11-24 13:27:16 +01:00

drop_monitor.c

drop_monitor: work around gcc-10 stringop-overflow warning

2020-05-20 08:18:33 +02:00

dst_cache.c

…

dst.c

…

ethtool.c

net: ethtool: clear heap allocations for ethtool function

2021-06-30 08:48:30 -04:00

failover.c

failover: allow name change on IFF_UP slave interfaces

2019-04-27 09:36:30 +02:00

fib_notifier.c

…

fib_rules.c

fib: Return the correct errno code

2021-06-30 08:48:13 -04:00

filter.c

bpf: Do not change gso_size during bpf_skb_change_proto()

2021-07-20 16:15:52 +02:00

flow_dissector.c

net: dsa: fix flow dissection on Tx path

2019-12-21 10:57:11 +01:00

gen_estimator.c

net_sched: gen_estimator: support large ewma log

2021-02-07 14:48:37 +01:00

gen_stats.c

net: sched: put back q.qlen into a single location

2019-03-10 07:17:16 +01:00

gro_cells.c

gro_cells: make sure device is up in gro_cells_receive()

2019-03-19 13:12:38 +01:00

hwbm.c

…

link_watch.c

…

lwt_bpf.c

lwt: Disable BH too in run_lwt_bpf()

2020-12-30 11:26:06 +01:00

lwtunnel.c

…

Makefile

…

neighbour.c

neighbour: Disregard DEAD dst in neigh_update

2021-04-28 13:16:48 +02:00

net_namespace.c

netns: protect netns ID lookups with RCU

2021-09-22 11:47:55 +02:00

net-procfs.c

…

net-sysfs.c

net-sysfs: take the rtnl lock when accessing xps_rxqs_map and num_tc

2021-01-12 20:10:20 +01:00

net-sysfs.h

…

net-traces.c

…

netclassid_cgroup.c

cgroup, netclassid: remove double cond_resched

2020-05-10 10:30:12 +02:00

netevent.c

…

netpoll.c

net: Have netpoll bring-up DSA management interface

2020-11-24 13:27:17 +01:00

netprio_cgroup.c

netprio_cgroup: Fix unlimited memory leak of v2 cgroups

2020-05-20 08:18:38 +02:00

page_pool.c

…

pktgen.c

pktgen: fix misuse of BUG_ON() in pktgen_thread_worker()

2021-03-07 12:18:57 +01:00

ptp_classifier.c

…

request_sock.c

…

rtnetlink.c

rtnetlink: Fix regression in bridge VLAN configuration

2021-06-30 08:48:16 -04:00

scm.c

…

secure_seq.c

…

skbuff.c

net: Fix zero-copy head len calculation.

2021-08-08 08:54:29 +02:00

sock_diag.c

…

sock_reuseport.c

udp: Prevent reuseport_select_sock from reading uninitialized socks

2021-01-23 15:49:55 +01:00

sock.c

net: annotate data race around sk_ll_usec

2021-07-31 08:22:38 +02:00

stream.c

tcp: make sure EPOLLOUT wont be missed

2019-09-06 10:22:07 +02:00

sysctl_net_core.c

bpf: Check correct cred for CAP_SYSLOG in bpf_dump_raw_ok()

2020-07-16 08:17:27 +02:00

timestamping.c

…

tso.c

…

utils.c

net: Fix skb->csum update in inet_proto_csum_replace16().

2020-02-05 14:43:53 +00:00

xdp.c

…