Here are 3 different fixes, all related to the MPTCP receive buffer:
- Patch 1: fix receive buffer space when recvmsg() blocks after
receiving some data. For a fix introduced in v6.12, backported to
v6.1.
- Patch 2: mptcp_cleanup_rbuf() can be called when no data has been
copied. For 5.11.
- Patch 3: prevent excessive coalescing on receive, which can affect the
throughput badly. It looks better to wait a bit before backporting
this one to stable versions, to get more results. For 5.10.
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
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Please note that there is no urgency here as well: this can of course be
sent to Linus next year!
Enjoy this holiday period!
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Paolo Abeni (3):
mptcp: fix recvbuffer adjust on sleeping rcvmsg
mptcp: don't always assume copied data in mptcp_cleanup_rbuf()
mptcp: prevent excessive coalescing on receive
net/mptcp/protocol.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
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base-commit: a024e377efed31ecfb39210bed562932321345b3
change-id: 20241230-net-mptcp-rbuf-fixes-74526e59d951
Best regards,
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Matthieu Baerts (NGI0) <matttbe@xxxxxxxxxx>
