diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-12-09 23:44:22 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-10 06:38:26 -0800 |
| commit | ffa84b5ffb37a957d6062385112ab1069f760de6 (patch) | |
| tree | 89733cef5d53049409a970305d2346b9548cf8f3 | |
| parent | 9ba74e6c9e9d0c5c1e5792a7111fc7d1a0589cb8 (diff) | |
net: add netns refcount tracker to struct sock
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/net/sock.h | 2 | ||||
| -rw-r--r-- | net/core/sock.c | 6 |
2 files changed, 5 insertions, 3 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index ae61cd0b650d..5d8532f26208 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -350,6 +350,7 @@ struct bpf_local_storage; * @sk_txtime_deadline_mode: set deadline mode for SO_TXTIME * @sk_txtime_report_errors: set report errors mode for SO_TXTIME * @sk_txtime_unused: unused txtime flags + * @ns_tracker: tracker for netns reference */ struct sock { /* @@ -538,6 +539,7 @@ struct sock { struct bpf_local_storage __rcu *sk_bpf_storage; #endif struct rcu_head sk_rcu; + netns_tracker ns_tracker; }; enum sk_pacing { diff --git a/net/core/sock.c b/net/core/sock.c index 4a499d255f40..1a6a92539790 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1983,7 +1983,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority, sock_lock_init(sk); sk->sk_net_refcnt = kern ? 0 : 1; if (likely(sk->sk_net_refcnt)) { - get_net(net); + get_net_track(net, &sk->ns_tracker, priority); sock_inuse_add(net, 1); } @@ -2039,7 +2039,7 @@ static void __sk_destruct(struct rcu_head *head) put_pid(sk->sk_peer_pid); if (likely(sk->sk_net_refcnt)) - put_net(sock_net(sk)); + put_net_track(sock_net(sk), &sk->ns_tracker); sk_prot_free(sk->sk_prot_creator, sk); } @@ -2126,7 +2126,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) /* SANITY */ if (likely(newsk->sk_net_refcnt)) { - get_net(sock_net(newsk)); + get_net_track(sock_net(newsk), &newsk->ns_tracker, priority); sock_inuse_add(sock_net(newsk), 1); } sk_node_init(&newsk->sk_node); |