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| author | Ingo Molnar <mingo@kernel.org> | 2024-07-11 10:42:33 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-07-11 10:42:33 +0200 |
| commit | 011b1134b82c2750d83a299a1369c678845de45a (patch) | |
| tree | a6a2ba6bfa62b02cb7b00a67c6f449d965140e5a /net/ipv4/tcp_timer.c | |
| parent | d329605287020c3d1c3b0dadc63d8208e7251382 (diff) | |
| parent | ddae0ca2a8fe12d0e24ab10ba759c3fbd755ada8 (diff) | |
Merge branch 'sched/urgent' into sched/core, to pick up fixes and refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
| -rw-r--r-- | net/ipv4/tcp_timer.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index 83fe7f62f7f1..5bfd76a31af6 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -485,8 +485,12 @@ static bool tcp_rtx_probe0_timed_out(const struct sock *sk, { const struct tcp_sock *tp = tcp_sk(sk); const int timeout = TCP_RTO_MAX * 2; - u32 rcv_delta; + s32 rcv_delta; + /* Note: timer interrupt might have been delayed by at least one jiffy, + * and tp->rcv_tstamp might very well have been written recently. + * rcv_delta can thus be negative. + */ rcv_delta = inet_csk(sk)->icsk_timeout - tp->rcv_tstamp; if (rcv_delta <= timeout) return false; |