Guillaume Nault 252fad3d02 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>

2021-09-15 09:47:31 +02:00

..

bpf_sk_storage.c

bpf: Improve bucket_log calculation logic

2020-02-14 16:34:10 -05:00

datagram.c

udp: fix skb_copy_and_csum_datagram with odd segment sizes

2021-02-17 10:35:19 +01:00

datagram.h

net/core: Allow the compiler to verify declaration and definition consistency

2019-03-27 13:49:44 -07:00

dev_addr_lists.c

net: remove unnecessary variables and callback

2019-10-24 14:53:49 -07:00

dev_ioctl.c

net: fix dev_ifsioc_locked() race condition

2021-03-07 12:20:43 +01:00

dev.c

net: Treat __napi_schedule_irqoff() as __napi_schedule() on PREEMPT_RT

2021-07-19 08:53:08 +02:00

devlink.c

devlink: Hold rtnl lock while reading netdev attributes

2020-12-08 10:40:23 +01:00

drop_monitor.c

drop_monitor: work around gcc-10 stringop-overflow warning

2020-05-20 08:20:06 +02:00

dst_cache.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

dst.c

net: print proper warning on dst underflow

2019-09-26 09:05:56 +02:00

ethtool.c

net: ethtool: clear heap allocations for ethtool function

2021-06-30 08:47:47 -04:00

failover.c

failover: allow name change on IFF_UP slave interfaces

2019-04-10 22:12:26 -07:00

fib_notifier.c

net: fib_notifier: move fib_notifier_ops from struct net into per-net struct

2019-09-07 17:28:22 +02:00

fib_rules.c

fib: Return the correct errno code

2021-06-18 09:59:00 +02:00

filter.c

bpf: Do not change gso_size during bpf_skb_change_proto()

2021-07-14 16:53:32 +02:00

flow_dissector.c

flow_dissector: Fix out-of-bounds warning in __skb_flow_bpf_to_target()

2021-05-19 10:08:23 +02:00

flow_offload.c

net: core: rename indirect block ingress cb function

2019-12-18 16:08:47 +01:00

gen_estimator.c

net_sched: gen_estimator: support large ewma log

2021-02-07 15:35:47 +01:00

gen_stats.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

gro_cells.c

gro_cells: make sure device is up in gro_cells_receive()

2019-03-10 11:07:14 -07:00

hwbm.c

net: hwbm: Make the hwbm_pool lock a mutex

2019-06-09 19:40:10 -07:00

link_watch.c

net: linkwatch: fix failure to restore device state across suspend/resume

2021-08-18 08:57:00 +02:00

lwt_bpf.c

lwt: Disable BH too in run_lwt_bpf()

2020-12-30 11:51:30 +01:00

lwtunnel.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

Makefile

bpf: Introduce bpf sk local storage

2019-04-27 09:07:04 -07:00

neighbour.c

neighbour: allow NUD_NOARP entries to be forced GCed

2021-06-10 13:37:16 +02:00

net_namespace.c

netns: protect netns ID lookups with RCU

2021-09-15 09:47:31 +02:00

net-procfs.c

treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively

2019-04-09 14:19:06 +02:00

net-sysfs.c

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

2021-01-12 20:16:13 +01:00

net-sysfs.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

net-traces.c

page_pool: add tracepoints for page_pool with details need by XDP

2019-06-19 11:23:13 -04:00

netclassid_cgroup.c

cgroup, netclassid: remove double cond_resched

2020-05-10 10:31:32 +02:00

netevent.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

netpoll.c

net: Have netpoll bring-up DSA management interface

2020-11-24 13:28:57 +01:00

netprio_cgroup.c

netprio_cgroup: Fix unlimited memory leak of v2 cgroups

2020-05-20 08:20:12 +02:00

page_pool.c

mm: fix struct page layout on 32-bit systems

2021-05-19 10:08:31 +02:00

pktgen.c

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

2021-03-07 12:20:44 +01:00

ptp_classifier.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295

2019-06-05 17:36:38 +02:00

request_sock.c

tcp: add rcu protection around tp->fastopen_rsk

2019-10-13 10:13:08 -07:00

rtnetlink.c

rtnetlink: Return correct error on changing device netns

2021-09-03 10:08:14 +02:00

scm.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

secure_seq.c

treewide: Add SPDX license identifier for missed files

2019-05-21 10:50:45 +02:00

skbuff.c

net: Fix zero-copy head len calculation.

2021-08-08 09:04:08 +02:00

skmsg.c

bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self

2020-11-24 13:29:19 +01:00

sock_diag.c

sock: make cookie generation global instead of per netns

2019-08-09 13:14:46 -07:00

sock_map.c

bpf: sockmap: Require attach_bpf_fd when detaching a program

2020-08-07 09:34:02 +02:00

sock_reuseport.c

udp: Prevent reuseport_select_sock from reading uninitialized socks

2021-01-23 15:57:56 +01:00

sock.c

net: annotate data race around sk_ll_usec

2021-07-31 08:19:38 +02:00

stream.c

tcp: make sure EPOLLOUT wont be missed

2019-08-19 13:07:43 -07:00

sysctl_net_core.c

bpf: Check correct cred for CAP_SYSLOG in bpf_dump_raw_ok()

2020-07-16 08:16:45 +02:00

timestamping.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61

2019-05-24 17:36:45 +02:00

tso.c

net: Use skb accessors in network core

2019-07-22 20:47:56 -07:00

utils.c

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

2020-02-05 21:22:52 +00:00

xdp.c

xdp: obtain the mem_id mutex before trying to remove an entry.

2019-12-18 16:09:10 +01:00