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| author |   Wei Wang <weiwan@google.com> | 2017-12-12 16:28:58 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-12-13 16:01:17 -0500 |
| commit | 9ee11bd03cb1a5c3ca33c2bb70e7ed325f68890f (patch) | |
| tree | 1e05b6639cbd8684e6bd85f9cc7bf02da14e2484 /net/ipv4/tcp_timer.c | |
| parent | skge: remove redundunt free_irq under spinlock (diff) | |
| download | linux-dev-9ee11bd03cb1a5c3ca33c2bb70e7ed325f68890f.tar.xz linux-dev-9ee11bd03cb1a5c3ca33c2bb70e7ed325f68890f.zip | |
tcp: fix potential underestimation on rcv_rtt
When ms timestamp is used, current logic uses 1us in
tcp_rcv_rtt_update() when the real rcv_rtt is within 1 - 999us.
This could cause rcv_rtt underestimation.
Fix it by always using a min value of 1ms if ms timestamp is used.
Fixes: 645f4c6f2ebd ("tcp: switch rcv_rtt_est and rcvq_space to high resolution timestamps")
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
0 files changed, 0 insertions, 0 deletions