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authorPaolo Abeni <pabeni@redhat.com>2026-06-02 22:14:08 +1000
committerJakub Kicinski <kuba@kernel.org>2026-06-03 19:04:25 -0700
commit9d8d28738f24b75616d6ca7a27cb4aed88520343 (patch)
tree6f8b1c05f45a06c3f90c6a286c73339cc2fb0f7f /tools/perf/scripts/python/task-analyzer.py
parent672bd0519e27c357c43b7f8c0d653fce3817d06e (diff)
mptcp: fix missing wakeups in edge scenarios
The mptcp_recvmsg() can fill MPTCP socket receive queue via mptcp_move_skbs(), but currently does not try to wakeup any listener, because the same process is going to check the receive queue soon. When multiple threads are reading from the same fd, the above can cause stall. Add the missing wakeup. Fixes: 6771bfd9ee24 ("mptcp: update mptcp ack sequence from work queue") Cc: stable@vger.kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20260602-net-mptcp-misc-fixes-7-1-rc7-v2-1-856831229976@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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