ipv6: try not to take rtnl_lock in ip6mr_sk_done
Avoid traversing the list of mr6_tables (which requires the rtnl_lock) in ip6mr_sk_done(), when we know in advance that a match will not be found. This can happen when rawv6_close()/ip6mr_sk_done() is invoked on non-mroute6 sockets. This patch helps reduce rtnl_lock contention when destroying a large number of net namespaces, each having a non-mroute6 raw socket. v2: same patch, only fixed subject line and expanded comment. Signed-off-by: NFrancesco Ruggeri <fruggeri@arista.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Showing
想要评论请 注册 或 登录