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-rw-r--r--include/net/sock.h11
-rw-r--r--net/ipv4/af_inet.c2
-rw-r--r--net/ipv4/inet_diag.c2
-rw-r--r--net/sched/em_meta.c2
4 files changed, 14 insertions, 3 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index df0e0efb1882..4f0280ad6c23 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1210,6 +1210,8 @@ struct proto {
unsigned int inuse_idx;
#endif
+ int (*forward_alloc_get)(const struct sock *sk);
+
bool (*stream_memory_free)(const struct sock *sk, int wake);
bool (*stream_memory_read)(const struct sock *sk);
/* Memory pressure */
@@ -1217,6 +1219,7 @@ struct proto {
void (*leave_memory_pressure)(struct sock *sk);
atomic_long_t *memory_allocated; /* Current allocated memory. */
struct percpu_counter *sockets_allocated; /* Current number of sockets. */
+
/*
* Pressure flag: try to collapse.
* Technical note: it is used by multiple contexts non atomically.
@@ -1294,6 +1297,14 @@ static inline void sk_refcnt_debug_release(const struct sock *sk)
INDIRECT_CALLABLE_DECLARE(bool tcp_stream_memory_free(const struct sock *sk, int wake));
+static inline int sk_forward_alloc_get(const struct sock *sk)
+{
+ if (!sk->sk_prot->forward_alloc_get)
+ return sk->sk_forward_alloc;
+
+ return sk->sk_prot->forward_alloc_get(sk);
+}
+
static inline bool __sk_stream_memory_free(const struct sock *sk, int wake)
{
if (READ_ONCE(sk->sk_wmem_queued) >= READ_ONCE(sk->sk_sndbuf))
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 31d5cefa9979..0189e3cd4a7d 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -150,7 +150,7 @@ void inet_sock_destruct(struct sock *sk)
WARN_ON(atomic_read(&sk->sk_rmem_alloc));
WARN_ON(refcount_read(&sk->sk_wmem_alloc));
WARN_ON(sk->sk_wmem_queued);
- WARN_ON(sk->sk_forward_alloc);
+ WARN_ON(sk_forward_alloc_get(sk));
kfree(rcu_dereference_protected(inet->inet_opt, 1));
dst_release(rcu_dereference_protected(sk->sk_dst_cache, 1));
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index ef7897226f08..c8fa6e7f7d12 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -271,7 +271,7 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
struct inet_diag_meminfo minfo = {
.idiag_rmem = sk_rmem_alloc_get(sk),
.idiag_wmem = READ_ONCE(sk->sk_wmem_queued),
- .idiag_fmem = sk->sk_forward_alloc,
+ .idiag_fmem = sk_forward_alloc_get(sk),
.idiag_tmem = sk_wmem_alloc_get(sk),
};
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index 46254968d390..0a04468b7314 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -457,7 +457,7 @@ META_COLLECTOR(int_sk_fwd_alloc)
*err = -1;
return;
}
- dst->value = sk->sk_forward_alloc;
+ dst->value = sk_forward_alloc_get(sk);
}
META_COLLECTOR(int_sk_sndbuf)