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| author | Kuniyuki Iwashima <kuniyu@google.com> | 2025-07-03 02:01:31 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-09 04:32:39 +0300 |
| commit | eb1ac9ff6c4a5720b1a1476233be374c5dc44bff (patch) | |
| tree | 0aec0ddcc7428bbc438e572b0bab7eb9e76f1562 /include/linux | |
| parent | 976fa9b2054f5b5f5eb5488bdc1a230f734992c4 (diff) | |
| download | linux-eb1ac9ff6c4a5720b1a1476233be374c5dc44bff.tar.xz | |
ipv6: anycast: Don't hold RTNL for IPV6_JOIN_ANYCAST.
inet6_sk(sk)->ipv6_ac_list is protected by lock_sock().
In ipv6_sock_ac_join(), only __dev_get_by_index(), __dev_get_by_flags(),
and __in6_dev_get() require RTNL.
__dev_get_by_flags() is only used by ipv6_sock_ac_join() and can be
converted to RCU version.
Let's replace RCU version helper and drop RTNL from IPV6_JOIN_ANYCAST.
setsockopt_needs_rtnl() will be removed in the next patch.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250702230210.3115355-15-kuni1840@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netdevice.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 5847c20994d3..a80d21a14612 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3332,8 +3332,8 @@ int dev_get_iflink(const struct net_device *dev); int dev_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb); int dev_fill_forward_path(const struct net_device *dev, const u8 *daddr, struct net_device_path_stack *stack); -struct net_device *__dev_get_by_flags(struct net *net, unsigned short flags, - unsigned short mask); +struct net_device *dev_get_by_flags_rcu(struct net *net, unsigned short flags, + unsigned short mask); struct net_device *dev_get_by_name(struct net *net, const char *name); struct net_device *dev_get_by_name_rcu(struct net *net, const char *name); struct net_device *__dev_get_by_name(struct net *net, const char *name); |