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linux/net/ipv6
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Kuniyuki Iwashima 4480d5fa1f ipmr/ip6mr: Convert net->ipv[46].ipmr_seq to atomic_t. 
We will no longer hold RTNL for ipmr_mfc_add() and ipmr_mfc_delete().

MFC entry can be loosely connected with VIF by its index for
mrt->vif_table[] (stored in mfc_parent), but the two tables are
not synchronised.  i.e. Even if VIF 1 is removed, MFC for VIF 1
is not automatically removed.

The only field that the MFC/VIF interfaces share is
net->ipv[46].ipmr_seq, which is protected by RTNL.

Adding a new mutex for both just to protect a single field is overkill.

Let's convert the field to atomic_t.

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260228221800.1082070-14-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2026-03-02 18:49:41 -08:00
..
ila Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
netfilter netfilter: nf_tables: remove register tracking infrastructure 2026-02-25 19:36:26 -08:00
Kconfig
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Makefile gro: inline tcp6_gro_receive() 2026-01-21 19:28:32 -08:00
addrconf.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
addrconf_core.c
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addrlabel.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
af_inet6.c net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
ah6.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
anycast.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
calipso.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
datagram.c net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
esp6.c
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esp6_offload.c xfrm: Fix inner mode lookup in tunnel mode GSO segmentation 2025-12-04 09:54:53 +01:00
exthdrs.c ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data() 2026-02-13 12:24:05 -08:00
exthdrs_core.c
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exthdrs_offload.c
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fib6_notifier.c
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fib6_rules.c
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fou6.c
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icmp.c ipv6: icmp: icmpv6_xrlim_allow() optimization if net.ipv6.icmp.ratelimit is zero 2026-02-18 16:46:37 -08:00
inet6_connection_sock.c tcp: move inet6_csk_update_pmtu() to tcp_ipv6.c 2026-02-24 17:47:27 -08:00
inet6_hashtables.c
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ioam6.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ioam6_iptunnel.c ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data() 2026-02-13 12:24:05 -08:00
ip6_checksum.c udp: move udp6_csum_init() back to net/ipv6/udp.c 2026-02-24 16:30:40 -08:00
ip6_fib.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
ip6_flowlabel.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ip6_gre.c ipv6: use dst6_mtu() instead of dst_mtu() 2026-02-02 17:49:29 -08:00
ip6_icmp.c
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ip6_input.c net/ipv6: Introduce payload_len helpers 2026-02-06 20:50:03 -08:00
ip6_offload.c net/ipv6: Remove jumbo_remove step from TX path 2026-02-06 20:50:12 -08:00
ip6_offload.h
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ip6_output.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
ip6_tunnel.c ipv6: use dst6_mtu() instead of dst_mtu() 2026-02-02 17:49:29 -08:00
ip6_udp_tunnel.c net: Convert proto_ops connect() callbacks to use sockaddr_unsized 2025-11-04 19:10:32 -08:00
ip6_vti.c
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ip6mr.c ipmr/ip6mr: Convert net->ipv[46].ipmr_seq to atomic_t. 2026-03-02 18:49:41 -08:00
ipcomp6.c
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ipv6_sockglue.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
mcast.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
mcast_snoop.c
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mip6.c
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ndisc.c ipv6: annotate data-race in ndisc_router_discovery() 2026-01-20 18:37:45 -08:00
netfilter.c
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output_core.c net/ipv6: Introduce payload_len helpers 2026-02-06 20:50:03 -08:00
ping.c net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
proc.c
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protocol.c
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raw.c net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
reassembly.c ipv6: discard fragment queue earlier if there is malformed datagram 2026-02-27 19:08:54 -08:00
route.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
rpl.c
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rpl_iptunnel.c
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seg6.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
seg6_hmac.c
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seg6_iptunnel.c
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seg6_local.c
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sit.c ipv6: sit: Replace deprecated strcpy with strscpy 2026-02-28 10:06:29 -08:00
syncookies.c
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sysctl_net_ipv6.c
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tcp_ao.c
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tcp_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-02-26 10:23:00 -08:00
tcpv6_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-01-29 17:28:54 -08:00
tunnel6.c
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udp.c net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
udp_impl.h net: remove addr_len argument of recvmsg() handlers 2026-03-02 18:17:17 -08:00
udp_offload.c gro: inline tcp6_gro_complete() 2026-01-21 19:28:32 -08:00
udplite.c udplite: Fix null-ptr-deref in __udp_enqueue_schedule_skb(). 2026-02-20 16:14:10 -08:00
xfrm6_input.c
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xfrm6_output.c
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xfrm6_policy.c xfrm6: fix uninitialized saddr in xfrm6_get_saddr() 2026-02-02 08:03:47 +01:00
xfrm6_protocol.c
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xfrm6_state.c
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xfrm6_tunnel.c
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