diff options
| author | Matthieu Baerts (NGI0) <matttbe@kernel.org> | 2025-04-13 11:34:36 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-04-15 08:21:47 -0700 |
| commit | 4ce7fb8de556c0a16c17b5d11d54fa21479f2552 (patch) | |
| tree | 82d3399eabe17dce6531ad604a77db8b09cf29b6 /net/mptcp/protocol.c | |
| parent | 60cbf3158513ae35ab38a2593b07ce679825d425 (diff) | |
mptcp: add MPJoinRejected MIB counter
This counter is useful to understand why some paths are rejected, and
not created as expected.
It is incremented when receiving a connection request, if the PM didn't
allow the creation of new subflows.
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250413-net-next-mptcp-sched-mib-sft-misc-v2-5-0f83a4350150@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/protocol.c')
| -rw-r--r-- | net/mptcp/protocol.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 44f7ab463d75..26ffa06c21e8 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3527,8 +3527,10 @@ bool mptcp_finish_join(struct sock *ssk) return true; } - if (!mptcp_pm_allow_new_subflow(msk)) + if (!mptcp_pm_allow_new_subflow(msk)) { + MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_JOINREJECTED); goto err_prohibited; + } /* If we can't acquire msk socket lock here, let the release callback * handle it |