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authorFlorian Westphal <fw@strlen.de>2021-04-16 02:45:01 +0300
committerDavid S. Miller <davem@davemloft.net>2021-04-17 01:23:10 +0300
commitaa1fbd94e5c7d3a356058b4ee4a455d952dd48aa (patch)
treee45cd4aca99fc8c12db362f8db50c2b1387f7ac1 /net/mptcp/protocol.c
parenta03c99b253c232d7d305c9dd476b5b120841dff7 (diff)
downloadlinux-aa1fbd94e5c7d3a356058b4ee4a455d952dd48aa.tar.xz
mptcp: sockopt: add TCP_CONGESTION and TCP_INFO
TCP_CONGESTION is set for all subflows. The mptcp socket gains icsk_ca_ops too so it can be used to keep the authoritative state that should be set on new/future subflows. TCP_INFO will return first subflow only. The out-of-tree kernel has a MPTCP_INFO getsockopt, this could be added later on. Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/protocol.c')
-rw-r--r--net/mptcp/protocol.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 5cba90948a7e..073e20078ed0 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2399,6 +2399,9 @@ static int __mptcp_init_sock(struct sock *sk)
/* re-use the csk retrans timer for MPTCP-level retrans */
timer_setup(&msk->sk.icsk_retransmit_timer, mptcp_retransmit_timer, 0);
timer_setup(&sk->sk_timer, mptcp_timeout_timer, 0);
+
+ tcp_assign_congestion_control(sk);
+
return 0;
}
@@ -2592,6 +2595,8 @@ static void __mptcp_destroy_sock(struct sock *sk)
WARN_ON_ONCE(msk->rmem_released);
sk_stream_kill_queues(sk);
xfrm_sk_free_policy(sk);
+
+ tcp_cleanup_congestion_control(sk);
sk_refcnt_debug_release(sk);
mptcp_dispose_initial_subflow(msk);
sock_put(sk);