net: fib_rules: Use dev_get_by_name_rcu().

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We will no longer hold RTNL for RTM_NEWRULE and RMT_DELRULE
except for the first IPv4 RTM_NEWRULE.

Let's covnert __dev_get_by_name() in fib_nl2rule_rtnl() to
dev_get_by_name_rcu() and rename it to fib_nl2rule_locked().

Note that dev_get_by_name_rcu() must be called inside ops->lock
to serialise fib_rules_event() by __dev_change_net_namespace().

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260629181226.1929658-9-kuniyu@google.com
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Kuniyuki Iwashima 2026-06-29 18:11:00 +00:00 • committed by Paolo Abeni

parent facce49f29

commit 34ea249938

1 changed files with 14 additions and 10 deletions

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net/core/fib_rules.c

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