mptcp: use _fast lock version in __mptcp_move_skbs

The function is short and won't sleep, so this can use the _fast version. Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Florian Westphal <[email protected]>
multipath-tcp · Oct 15, 2020 · 503d07b · 503d07b
1 parent 682ae73
commit 503d07b
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
@@ -1483,13 +1483,14 @@ static bool __mptcp_move_skbs(struct mptcp_sock *msk)
 	__mptcp_flush_join_list(msk);
 	do {
 		struct sock *ssk = mptcp_subflow_recv_lookup(msk);
+		bool slowpath;
 
 		if (!ssk)
 			break;
 
-		lock_sock(ssk);
+		slowpath = lock_sock_fast(ssk);
 		done = __mptcp_move_skbs_from_subflow(msk, ssk, &moved);
-		release_sock(ssk);
+		unlock_sock_fast(ssk, slowpath);
 	} while (!done);
 
 	if (mptcp_ofo_queue(msk) || moved > 0) {