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| author | Menglong Dong <imagedong@tencent.com> | 2023-01-06 21:57:23 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-01-09 10:30:50 +0300 |
| commit | c558246ee73e6f623ca503fb1fda626f313393a6 (patch) | |
| tree | 5d4b8e7d259b220dd6af3766fd985241ad863c41 /net/mptcp/token.c | |
| parent | 294de9090938a7959e2757573509abd9ea7bd254 (diff) | |
| download | linux-c558246ee73e6f623ca503fb1fda626f313393a6.tar.xz | |
mptcp: add statistics for mptcp socket in use
Do the statistics of mptcp socket in use with sock_prot_inuse_add().
Therefore, we can get the count of used mptcp socket from
/proc/net/protocols:
& cat /proc/net/protocols
protocol size sockets memory press maxhdr slab module cl co di ac io in de sh ss gs se re sp bi br ha uh gp em
MPTCPv6 2048 0 0 no 0 yes kernel y n y y y y y y y y y y n n n y y y n
MPTCP 1896 1 0 no 0 yes kernel y n y y y y y y y y y y n n n y y y n
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Menglong Dong <imagedong@tencent.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/token.c')
| -rw-r--r-- | net/mptcp/token.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mptcp/token.c b/net/mptcp/token.c index 3af502a374bc..5bb924534387 100644 --- a/net/mptcp/token.c +++ b/net/mptcp/token.c @@ -153,6 +153,7 @@ int mptcp_token_new_connect(struct sock *ssk) struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk); struct mptcp_sock *msk = mptcp_sk(subflow->conn); int retries = MPTCP_TOKEN_MAX_RETRIES; + struct sock *sk = subflow->conn; struct token_bucket *bucket; again: @@ -175,6 +176,7 @@ again: __sk_nulls_add_node_rcu((struct sock *)msk, &bucket->msk_chain); bucket->chain_len++; spin_unlock_bh(&bucket->lock); + sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); return 0; } @@ -190,8 +192,10 @@ void mptcp_token_accept(struct mptcp_subflow_request_sock *req, struct mptcp_sock *msk) { struct mptcp_subflow_request_sock *pos; + struct sock *sk = (struct sock *)msk; struct token_bucket *bucket; + sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); bucket = token_bucket(req->token); spin_lock_bh(&bucket->lock); @@ -370,12 +374,14 @@ void mptcp_token_destroy_request(struct request_sock *req) */ void mptcp_token_destroy(struct mptcp_sock *msk) { + struct sock *sk = (struct sock *)msk; struct token_bucket *bucket; struct mptcp_sock *pos; if (sk_unhashed((struct sock *)msk)) return; + sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); bucket = token_bucket(msk->token); spin_lock_bh(&bucket->lock); pos = __token_lookup_msk(bucket, msk->token); |