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authorGeliang Tang <geliangtang@gmail.com>2021-04-16 15:38:06 -0700
committerDavid S. Miller <davem@davemloft.net>2021-04-16 17:10:40 -0700
commited66bfb4ce34a94174bb755eeaca85d1661d36ad (patch)
tree6b45ac5d605eeea25b9557c47b32748882286946 /net/mptcp
parent0918e34b85c7e125f531caaf3d2918baf2b1a5f9 (diff)
mptcp: add tracepoint in ack_update_msk
This patch added a tracepoint in ack_update_msk() to track the incoming data_ack and window/snd_una updates. Suggested-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp')
-rw-r--r--net/mptcp/options.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index d51c3ad54d9a..99fc21406168 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -13,6 +13,8 @@
#include "protocol.h"
#include "mib.h"
+#include <trace/events/mptcp.h>
+
static bool mptcp_cap_flag_sha256(u8 flags)
{
return (flags & MPTCP_CAP_FLAG_MASK) == MPTCP_CAP_HMAC_SHA256;
@@ -943,6 +945,10 @@ static void ack_update_msk(struct mptcp_sock *msk,
__mptcp_data_acked(sk);
}
mptcp_data_unlock(sk);
+
+ trace_ack_update_msk(mp_opt->data_ack,
+ old_snd_una, new_snd_una,
+ new_wnd_end, msk->wnd_end);
}
bool mptcp_update_rcv_data_fin(struct mptcp_sock *msk, u64 data_fin_seq, bool use_64bit)