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Date: Fri, 14 Feb 2020 23:53:23 +0100 From: "Jason A. Donenfeld" <Jason@...c4.com> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Netdev <netdev@...r.kernel.org> Subject: Re: [PATCH v2 net 3/3] wireguard: send: account for mtu=0 devices On Fri, Feb 14, 2020 at 11:30 PM Eric Dumazet <eric.dumazet@...il.com> wrote: > Also note that UDP sockets have SOCK_RCU_FREE flag set, so core > networking also respect one RCU grace period before freeing them. if (use_call_rcu) call_rcu(&sk->sk_rcu, __sk_destruct); else __sk_destruct(&sk->sk_rcu); Ah, that's handy indeed. > It is possible that no extra synchronize_{net|rcu}() call is needed, > but this is left as an exercise for future kernels :) Cool, yea, sounds like something I should play with for 5.7. Sending v3 out in a few minutes.
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