On Thu, 28 May 2026 15:02:05 +1000
David Gibson
As we discussed on an earlier call, while fixing bug 202 I noticed a number of warts in the surrounding splice() forwarding code. Most are just things that are longer or harder to follow than they need to be, but in some cases there may be real (if unlikely to trigger) bugs. Here's a collection of fixes.
David Gibson (8): tcp_splice: Remove never-invoked SO_RCVLOWAT logic tcp_splice: Simplify EPOLLRDHUP / eof / FIN handling tcp_splice: Improve EOF exit condition for the loop tcp_splice: Remove goto from forwarding loop tcp_splice: Simplify shutdown(2) handling tcp_splice: Simplify / correct OUT_WAIT flag handling tcp_splice: Remove questionable "optimisation" of pending bytes tracking
Applied up to here (7/8).
tcp_splice: Exit forwarding earlier when stalled read side
tcp_splice.c | 100 ++++++++++++++++----------------------------------- 1 file changed, 31 insertions(+), 69 deletions(-)
-- Stefano