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| author | Kuniyuki Iwashima <kuniyu@google.com> | 2026-06-04 22:46:32 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-08 17:06:24 -0700 |
| commit | a4c98421720a79587ad6c528f81fe7976a45976b (patch) | |
| tree | 807b1deec5ca9746a43954339f158f9cade44f20 /include/net/netns | |
| parent | 2290727b2fdb9f56f6fa2e06b4c5061c4f28e2df (diff) | |
| download | linux-next-a4c98421720a79587ad6c528f81fe7976a45976b.tar.gz linux-next-a4c98421720a79587ad6c528f81fe7976a45976b.zip | |
ip6mr: Replace RTNL with a dedicated mutex for MFC.
ip6mr does not have rtnetlink interface for MFC unlike ipmr,
which uses dev_get_by_index_rcu() to set struct mfcctl.mfcc_parent.
ip6mr_mfc_add() and ip6mr_mfc_delete() are called under RTNL
from ip6_mroute_setsockopt() only.
There are no RTNL dependant, but ip6_mroute_setsockopt() reuses
RTNL just for mrt->mfc_hash and mrt->mfc_cache_list.
Let's replace RTNL with a new per-netns mutex.
Later, ip6mr_notifier_ops and ipmr_seq will be moved under
CONFIG_IPV6_MROUTE.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260604224712.3209821-15-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/netns')
| -rw-r--r-- | include/net/netns/ipv6.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index 875916d60bfe..668f10498c5c 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -112,6 +112,7 @@ struct netns_ipv6 { struct list_head mr6_tables; struct fib_rules_ops *mr6_rules_ops; #endif + struct mutex mfc_mutex; #endif atomic_t dev_addr_genid; atomic_t fib6_sernum; |