rtnetlink: Add assertion helpers for per-netns RTNL.

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Once an RTNL scope is converted with rtnl_net_lock(), we will replace
RTNL helper functions inside the scope with the following per-netns
alternatives:

  ASSERT_RTNL()           -> ASSERT_RTNL_NET(net)
  rcu_dereference_rtnl(p) -> rcu_dereference_rtnl_net(net, p)

Note that the per-netns helpers are equivalent to the conventional
helpers unless CONFIG_DEBUG_NET_SMALL_RTNL is enabled.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Kuniyuki Iwashima 2024-10-04 15:10:30 -07:00 • committed by Paolo Abeni

parent 76aed95319

commit 844e5e7e65

2 changed files with 53 additions and 4 deletions

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45

include/linux/rtnetlink.h

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12

net/core/rtnetlink.c

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