diff options
| author | David S. Miller <davem@davemloft.net> | 2019-09-17 23:51:10 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-17 23:51:10 +0200 |
| commit | 1bab8d4c488be22d57f9dd09968c90a0ddc413bf (patch) | |
| tree | 81318cd13170a3b6b72489f63e92adb0eaf49693 /include | |
| parent | 990925fad5c227269c3fcb76c7c46811b1e86c73 (diff) | |
| parent | 00b368502d18f790ab715e055869fd4bb7484a9b (diff) | |
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Pull in bug fixes from 'net' tree for the merge window.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/pkt_sched.h | 7 | ||||
| -rw-r--r-- | include/net/sock_reuseport.h | 20 |
2 files changed, 25 insertions, 2 deletions
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index d1632979622e..6a70845bd9ab 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -118,7 +118,12 @@ void __qdisc_run(struct Qdisc *q); static inline void qdisc_run(struct Qdisc *q) { if (qdisc_run_begin(q)) { - __qdisc_run(q); + /* NOLOCK qdisc must check 'state' under the qdisc seqlock + * to avoid racing with dev_qdisc_reset() + */ + if (!(q->flags & TCQ_F_NOLOCK) || + likely(!test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) + __qdisc_run(q); qdisc_run_end(q); } } diff --git a/include/net/sock_reuseport.h b/include/net/sock_reuseport.h index d9112de85261..43f4a818d88f 100644 --- a/include/net/sock_reuseport.h +++ b/include/net/sock_reuseport.h @@ -21,7 +21,8 @@ struct sock_reuseport { unsigned int synq_overflow_ts; /* ID stays the same even after the size of socks[] grows. */ unsigned int reuseport_id; - bool bind_inany; + unsigned int bind_inany:1; + unsigned int has_conns:1; struct bpf_prog __rcu *prog; /* optional BPF sock selector */ struct sock *socks[0]; /* array of sock pointers */ }; @@ -37,6 +38,23 @@ extern struct sock *reuseport_select_sock(struct sock *sk, extern int reuseport_attach_prog(struct sock *sk, struct bpf_prog *prog); extern int reuseport_detach_prog(struct sock *sk); +static inline bool reuseport_has_conns(struct sock *sk, bool set) +{ + struct sock_reuseport *reuse; + bool ret = false; + + rcu_read_lock(); + reuse = rcu_dereference(sk->sk_reuseport_cb); + if (reuse) { + if (set) + reuse->has_conns = 1; + ret = reuse->has_conns; + } + rcu_read_unlock(); + + return ret; +} + int reuseport_get_id(struct sock_reuseport *reuse); #endif /* _SOCK_REUSEPORT_H */ |