tcp: consistently check retransmit hint

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tcp_simple_retransmit() used for path MTU discovery may not adjust
the retransmit hint properly by deducting retrans_out before checking
it to adjust the hint. This patch fixes this by a correct routine
tcp_mark_skb_lost() already used by the RACK loss detection.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Yuchung Cheng 2020-09-25 10:04:28 -07:00 • committed by David S. Miller

parent b4f434839e

commit 179ac35f2f

2 changed files with 3 additions and 8 deletions

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9

net/ipv4/tcp_input.c

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2

net/ipv4/tcp_recovery.c

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