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Merge branch 'tcp-xmit-timer-rearming'
Neal Cardwell says: ==================== tcp: fix xmit timer rearming to avoid stalls This patch series is a bug fix for a TCP loss recovery performance bug reported independently in recent netdev threads: (i) July 26, 2017: netdev thread "TCP fast retransmit issues" (ii) July 26, 2017: netdev thread: "[PATCH V2 net-next] TLP: Don't reschedule PTO when there's one outstanding TLP retransmission" Many thanks to Klavs Klavsen and Mao Wenan for the detailed reports, traces, and packetdrill test cases, which enabled us to root-cause this issue and verify the fix. - v1 -> v2: - In patch 2/3, changed an unclear comment in the pre-existing code in tcp_schedule_loss_probe() to be more clear (thanks to Eric Dumazet for suggesting we improve this). ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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