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| author | Randall Stewart <rrs@FreeBSD.org> | 2022-02-23 21:25:56 +0000 |
|---|---|---|
| committer | Randall Stewart <rrs@FreeBSD.org> | 2022-02-23 21:25:56 +0000 |
| commit | a43b0aca125e384dfd0bd9467baa033f01f00b40 (patch) | |
| tree | d0e7b5657e9d27ebd95c52247edc4fe06059d24e | |
| parent | 97e13037915c22162f199461f56951793d669f57 (diff) | |
| download | src-a43b0aca125e384dfd0bd9467baa033f01f00b40.tar.gz src-a43b0aca125e384dfd0bd9467baa033f01f00b40.zip | |
tcp: Push bit failure to set in fastpath
Recently changes were made to the tcp stack to use a macro/function
to set tcp flags. In the process the PUSH bit setting in the fastpath of
rack was broken. This fixes that as well as cleans up a warning that
is occurring when you don't have INVARIANT on (inp used in KASSERT).
We can use the tcp test suite to find this bug the test plan shows the script
that fails due to the missing push bit
Reviewed by: rscheff, tuexen
Sponsored by: Netflix Inc.
Differential Revision: https://reviews.freebsd.org/D34332
| -rw-r--r-- | sys/netinet/tcp_stacks/rack.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c index 63a36c716531..7bab75a637fa 100644 --- a/sys/netinet/tcp_stacks/rack.c +++ b/sys/netinet/tcp_stacks/rack.c @@ -6258,11 +6258,11 @@ static int rack_timeout_persist(struct tcpcb *tp, struct tcp_rack *rack, uint32_t cts) { struct tcptemp *t_template; - struct inpcb *inp; +#ifdef INVARIANTS + struct inpcb *inp = tp->t_inpcb; +#endif int32_t retval = 1; - inp = tp->t_inpcb; - if (tp->t_timers->tt_flags & TT_STOPPED) { return (1); } @@ -16217,7 +16217,7 @@ again: } if (rack->r_ctl.fsb.rfo_apply_push && (len == rack->r_ctl.fsb.left_to_send)) { - tcp_set_flags(th, flags | TH_PUSH); + flags |= TH_PUSH; add_flag |= RACK_HAD_PUSH; } if ((m->m_next == NULL) || (len <= 0)){ |