linux/net/openvswitch
Runyu Xiao 0e901ee5c6 openvswitch: conntrack: annotate ct limit hlist traversal
ct_limit_set() is documented as being called with ovs_mutex held. It
walks the ct limit hlist with hlist_for_each_entry_rcu(), but the
iterator does not currently pass the OVS lockdep condition used
elsewhere for RCU-protected OVS objects.

Pass lockdep_ovsl_is_held() to the iterator. This matches the function's
existing caller contract and lets CONFIG_PROVE_RCU_LIST distinguish the
ovs_mutex-protected update path from the RCU read-side ct_limit_get()
path.

This was found by our static analysis tool and then manually reviewed
against the current tree. In the reviewed CONFIG_PROVE_RCU_LIST triage
run, the writer-side ct limit update produced the expected "RCU-list
traversed in non-reader section!!" warning while ovs_mutex was held,
with the stack matching ct_limit_set() and ovs_ct_limit_set_zone_limit().
The change is limited to documenting the existing protection contract.

This is a lockdep annotation cleanup. It does not change the conntrack
limit list update or release behavior.

Signed-off-by: Runyu Xiao <runyu.xiao@seu.edu.cn>
Reviewed-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://patch.msgid.link/20260624150149.3510541-1-runyu.xiao@seu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-25 08:38:00 -07:00
..
actions.c net: convert remaining ipv6_stub users to direct function calls 2026-03-29 11:21:23 -07:00
conntrack.c openvswitch: conntrack: annotate ct limit hlist traversal 2026-06-25 08:38:00 -07:00
conntrack.h
datapath.c net: openvswitch: fix possible kfree_skb of ERR_PTR 2026-06-08 20:13:02 -07:00
datapath.h net: openvswitch: allow providing upcall pid for the 'execute' command 2025-07-07 14:30:39 -07:00
dp_notify.c net: replace use of system_wq with system_percpu_wq 2025-09-22 17:40:30 -07:00
drop.h net: openvswitch: add misc error drop reasons 2023-08-14 08:01:06 +01:00
flow_netlink.c openvswitch: validate MPLS set/set_masked payload length 2026-03-20 18:37:31 -07:00
flow_netlink.h net: openvswitch: remove never-working support for setting nsh fields 2025-11-14 18:13:24 -08:00
flow_table.c net: use get_random_u{16,32,64}() where appropriate 2026-04-09 19:27:43 -07:00
flow_table.h net: openvswitch: Annotate struct mask_array with __counted_by 2023-10-17 13:56:03 +02:00
flow.c net: openvswitch: Use for_each_cpu() where appropriate 2025-08-20 19:47:22 -07:00
flow.h net: openvswitch: reduce cpu_used_mask memory 2023-02-06 22:36:29 -08:00
Kconfig sctp: use skb_crc32c() instead of __skb_checksum() 2025-05-21 15:40:16 -07:00
Makefile
meter.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
meter.h net: openvswitch: remove unnecessary linux/genetlink.h include 2024-04-01 21:44:34 -07:00
openvswitch_trace.c
openvswitch_trace.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
vport-geneve.c openvswitch: vport: fix race between tunnel creation and linking 2026-05-05 15:14:33 +02:00
vport-gre.c openvswitch: vport: fix race between tunnel creation and linking 2026-05-05 15:14:33 +02:00
vport-internal_dev.c net: rename netns_local to netns_immutable 2025-03-04 12:44:48 +01:00
vport-internal_dev.h
vport-netdev.c openvswitch: vport: fix race between linking and the device notifier 2026-05-18 16:38:45 -07:00
vport-netdev.h openvswitch: vport: fix race between tunnel creation and linking 2026-05-05 15:14:33 +02:00
vport-vxlan.c openvswitch: vport: fix race between tunnel creation and linking 2026-05-05 15:14:33 +02:00
vport.c openvswitch: cap upcall PID array size and pre-size vport replies 2026-04-20 11:43:04 -07:00
vport.h net: openvswitch: fix kernel-doc warnings in internal headers 2025-03-24 09:30:21 -07:00