bareudp: Store struct sock in struct bareudp_dev.

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bareudp does not need to access struct socket itself in the fast
path; it only reads struct sock, and struct socket is only used
for tunnel setup and teardown.

Let's store struct sock directly in struct bareudp_dev.

bareudp_sock_release() is called from dev->netdev_ops->ndo_stop().
synchronize_net() in unregister_netdevice_many_notify() ensures that
inflight bareudp RX fast paths finish before bareudp_dev is freed.

bareudp no longer needs synchronize_rcu() in udp_tunnel_sock_release().

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260502031401.3557229-11-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Kuniyuki Iwashima 2026-05-02 03:13:03 +00:00 • committed by Jakub Kicinski

parent 82720c6196

commit bc773b15eb

1 changed files with 25 additions and 26 deletions

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drivers/net/bareudp.c

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