diff options
| author | Yuchung Cheng <[email protected]> | 2020-09-25 10:04:30 -0700 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2020-09-25 17:17:14 -0700 |
| commit | 686989700cabc444f25c1f1eb022aca8f2fc14b2 (patch) | |
| tree | 582acbcd45b06e696d8fa11d71df13a09add4246 /tools/perf/scripts/python | |
| parent | fd2146741c98569c8b4dc41b8ccae597150b122c (diff) | |
tcp: simplify tcp_mark_skb_lost
This patch consolidates and simplifes the loss marking logic used
by a few loss detections (RACK, RFC6675, NewReno). Previously
each detection uses a subset of several intertwined subroutines.
This unncessary complexity has led to bugs (and fixes of bug fixes).
tcp_mark_skb_lost now is the single one routine to mark a packet loss
when a loss detection caller deems an skb ist lost:
1. rewind tp->retransmit_hint_skb if skb has lower sequence or
all lost ones have been retransmitted.
2. book-keeping: adjust flags and counts depending on if skb was
retransmitted or not.
Signed-off-by: Yuchung Cheng <[email protected]>
Signed-off-by: Neal Cardwell <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions