From: Jakub Kicinski Date: Thu, 9 Apr 2026 02:32:05 +0000 (-0700) Subject: Merge branch 'mptcp-autotune-related-improvement' X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3723c3b656ad47bcdad8bc2918a3456f9662a6cc;p=thirdparty%2Fkernel%2Flinux.git Merge branch 'mptcp-autotune-related-improvement' Matthieu Baerts says: ==================== mptcp: autotune related improvement Here are two patches from Paolo that have been crafted a couple of months ago, but needed more validation because they were indirectly causing instabilities in the sefltests. The root cause has been fixed in 'net' recently in commit 8c09412e584d ("selftests: mptcp: more stable simult_flows tests"). These patches refactor the receive space and RTT estimator, overall making DRS more correct while avoiding receive buffer drifting to tcp_rmem[2], which in turn makes the throughput more stable and less bursty, especially with high bandwidth and low delay environments. Note that the first patch addresses a very old issue. 'net-next' is targeted because the change is quite invasive and based on a recent backlog refactor. The 'Fixes' tag is then there more as a FYI, because backporting this patch will quickly be blocked due to large conflicts. ==================== Link: https://patch.msgid.link/20260407-net-next-mptcp-reduce-rbuf-v2-0-0d1d135bf6f6@kernel.org Signed-off-by: Jakub Kicinski --- 3723c3b656ad47bcdad8bc2918a3456f9662a6cc