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hpts: avoid duplicate call to tcp_output() 

Obtained from:	rrs
This commit is contained in:
Gleb Smirnoff 2023-12-26 13:09:09 -08:00
parent bf7830d79d
commit 08c33cd94d
1 changed files with 11 additions and 6 deletions
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17
sys/netinet/tcp_hpts.c
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@ -1364,18 +1364,23 @@ again:
* We also only call tfb_do_queued_segments() <or>
* tcp_output(). It is expected that if segments are
* queued and come in that the final input mbuf will
* cause a call to output if it is needed.
* cause a call to output if it is needed so we do
* not need a second call to tcp_output(). So we do
* one or the other but not both.
*/
tp->t_flags2 |= TF2_HPTS_CALLS;
if ((tp->t_flags2 & TF2_SUPPORTS_MBUFQ) &&
!STAILQ_EMPTY(&tp->t_inqueue)) {
error = (*tp->t_fb->tfb_do_queued_segments)(tp, 0);
if (error) {
/* The input killed the connection */
/*
* A non-zero return for input queue processing
* is the lock is released and most likely the
* inp is gone.
*/
if (error)
goto skip_pacing;
}
}
error = tcp_output(tp);
} else
error = tcp_output(tp);
if (error < 0)
goto skip_pacing;
INP_WUNLOCK(inp);