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authorEric Dumazet <edumazet@google.com>2023-09-21 20:28:15 +0000
committerDavid S. Miller <davem@davemloft.net>2023-10-01 19:09:54 +0100
commit28b24f90020fed8e8e3e8e20575f08c1cd06e54f (patch)
tree3fc7b7bd080580d56131a0a3b46468b1b1eea6f2 /include/trace
parent2a4319cf3c83fc5d1997466196b99b3e14584e76 (diff)
net: implement lockless SO_MAX_PACING_RATE
SO_MAX_PACING_RATE setsockopt() does not need to hold the socket lock, because sk->sk_pacing_rate readers can run fine if the value is changed by other threads, after adding READ_ONCE() accessors. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/mptcp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/trace/events/mptcp.h b/include/trace/events/mptcp.h
index 563e48617374..09e72215b9f9 100644
--- a/include/trace/events/mptcp.h
+++ b/include/trace/events/mptcp.h
@@ -44,7 +44,7 @@ TRACE_EVENT(mptcp_subflow_get_send,
ssk = mptcp_subflow_tcp_sock(subflow);
if (ssk && sk_fullsock(ssk)) {
__entry->snd_wnd = tcp_sk(ssk)->snd_wnd;
- __entry->pace = ssk->sk_pacing_rate;
+ __entry->pace = READ_ONCE(ssk->sk_pacing_rate);
} else {
__entry->snd_wnd = 0;
__entry->pace = 0;