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authorGeliang Tang <geliang.tang@suse.com>2022-04-22 14:55:38 -0700
committerDavid S. Miller <davem@davemloft.net>2022-04-23 11:51:05 +0100
commit0530020a7c8f2204e784f0dbdc882bbd961fdbde (patch)
treef088470f6e47e123b4c12de18ff5caf843bedf4a /net/mptcp/protocol.h
parent0348c690ed3731298fb73e37941475ed86b47f54 (diff)
mptcp: track and update contiguous data status
This patch adds a new member allow_infinite_fallback in mptcp_sock, which is initialized to 'true' when the connection begins and is set to 'false' on any retransmit or successful MP_JOIN. Only do infinite mapping fallback if there is a single subflow AND there have been no retransmissions AND there have never been any MP_JOINs. Suggested-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Geliang Tang <geliang.tang@suse.com> 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.h')
-rw-r--r--net/mptcp/protocol.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index aca1fb56523f..88d292374599 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -263,6 +263,7 @@ struct mptcp_sock {
bool rcv_fastclose;
bool use_64bit_ack; /* Set when we received a 64-bit DSN */
bool csum_enabled;
+ bool allow_infinite_fallback;
u8 recvmsg_inq:1,
cork:1,
nodelay:1;