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| author |   zhenggy <zhenggy@chinatelecom.cn> | 2021-09-14 09:51:15 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-09-14 14:23:09 +0100 |
| commit | 4f884f3962767877d7aabbc1ec124d2c307a4257 (patch) | |
| tree | 9328cbbd296f3621a666798f664d1c6539e865c5 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf (diff) | |
| download | linux-dev-4f884f3962767877d7aabbc1ec124d2c307a4257.tar.xz linux-dev-4f884f3962767877d7aabbc1ec124d2c307a4257.zip | |
tcp: fix tp->undo_retrans accounting in tcp_sacktag_one()
Commit 10d3be569243 ("tcp-tso: do not split TSO packets at retransmit
time") may directly retrans a multiple segments TSO/GSO packet without
split, Since this commit, we can no longer assume that a retransmitted
packet is a single segment.
This patch fixes the tp->undo_retrans accounting in tcp_sacktag_one()
that use the actual segments(pcount) of the retransmitted packet.
Before that commit (10d3be569243), the assumption underlying the
tp->undo_retrans-- seems correct.
Fixes: 10d3be569243 ("tcp-tso: do not split TSO packets at retransmit time")
Signed-off-by: zhenggy <zhenggy@chinatelecom.cn>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions