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-rw-r--r--include/linux/tcp.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index a9fbe22732c3..41b1da621a45 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -295,7 +295,7 @@ struct tcp_sock {
u32 packets_out; /* Packets which are "in flight" */
u32 retrans_out; /* Retransmitted packets out */
u32 max_packets_out; /* max packets_out in last window */
- u32 max_packets_seq; /* right edge of max_packets_out flight */
+ u32 cwnd_usage_seq; /* right edge of cwnd usage tracking flight */
u16 urg_data; /* Saved octet of OOB data and control flags */
u8 ecn_flags; /* ECN status bits. */
@@ -388,6 +388,12 @@ struct tcp_sock {
u8 bpf_sock_ops_cb_flags; /* Control calling BPF programs
* values defined in uapi/linux/tcp.h
*/
+ u8 bpf_chg_cc_inprogress:1; /* In the middle of
+ * bpf_setsockopt(TCP_CONGESTION),
+ * it is to avoid the bpf_tcp_cc->init()
+ * to recur itself by calling
+ * bpf_setsockopt(TCP_CONGESTION, "itself").
+ */
#define BPF_SOCK_OPS_TEST_FLAG(TP, ARG) (TP->bpf_sock_ops_cb_flags & ARG)
#else
#define BPF_SOCK_OPS_TEST_FLAG(TP, ARG) 0