diff options
Diffstat (limited to 'net/core/sock.c')
| -rw-r--r-- | net/core/sock.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 6f4b090241c1..0866d59489cb 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1528,7 +1528,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority, if (likely(sk->sk_net_refcnt)) get_net(net); sock_net_set(sk, net); - atomic_set(&sk->sk_wmem_alloc, 1); + refcount_set(&sk->sk_wmem_alloc, 1); mem_cgroup_sk_alloc(sk); cgroup_sk_alloc(&sk->sk_cgrp_data); @@ -1552,7 +1552,7 @@ static void __sk_destruct(struct rcu_head *head) sk->sk_destruct(sk); filter = rcu_dereference_check(sk->sk_filter, - atomic_read(&sk->sk_wmem_alloc) == 0); + refcount_read(&sk->sk_wmem_alloc) == 0); if (filter) { sk_filter_uncharge(sk, filter); RCU_INIT_POINTER(sk->sk_filter, NULL); @@ -1602,7 +1602,7 @@ void sk_free(struct sock *sk) * some packets are still in some tx queue. * If not null, sock_wfree() will call __sk_free(sk) later */ - if (atomic_dec_and_test(&sk->sk_wmem_alloc)) + if (refcount_dec_and_test(&sk->sk_wmem_alloc)) __sk_free(sk); } EXPORT_SYMBOL(sk_free); @@ -1659,7 +1659,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) /* * sk_wmem_alloc set to one (see sk_free() and sock_wfree()) */ - atomic_set(&newsk->sk_wmem_alloc, 1); + refcount_set(&newsk->sk_wmem_alloc, 1); atomic_set(&newsk->sk_omem_alloc, 0); sk_init_common(newsk); @@ -1787,7 +1787,7 @@ void sock_wfree(struct sk_buff *skb) * Keep a reference on sk_wmem_alloc, this will be released * after sk_write_space() call */ - atomic_sub(len - 1, &sk->sk_wmem_alloc); + WARN_ON(refcount_sub_and_test(len - 1, &sk->sk_wmem_alloc)); sk->sk_write_space(sk); len = 1; } @@ -1795,7 +1795,7 @@ void sock_wfree(struct sk_buff *skb) * if sk_wmem_alloc reaches 0, we must finish what sk_free() * could not do because of in-flight packets */ - if (atomic_sub_and_test(len, &sk->sk_wmem_alloc)) + if (refcount_sub_and_test(len, &sk->sk_wmem_alloc)) __sk_free(sk); } EXPORT_SYMBOL(sock_wfree); @@ -1807,7 +1807,7 @@ void __sock_wfree(struct sk_buff *skb) { struct sock *sk = skb->sk; - if (atomic_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)) + if (refcount_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)) __sk_free(sk); } @@ -1829,7 +1829,7 @@ void skb_set_owner_w(struct sk_buff *skb, struct sock *sk) * is enough to guarantee sk_free() wont free this sock until * all in-flight packets are completed */ - atomic_add(skb->truesize, &sk->sk_wmem_alloc); + refcount_add(skb->truesize, &sk->sk_wmem_alloc); } EXPORT_SYMBOL(skb_set_owner_w); @@ -1852,7 +1852,7 @@ void skb_orphan_partial(struct sk_buff *skb) struct sock *sk = skb->sk; if (atomic_inc_not_zero(&sk->sk_refcnt)) { - atomic_sub(skb->truesize, &sk->sk_wmem_alloc); + WARN_ON(refcount_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)); skb->destructor = sock_efree; } } else { @@ -1912,7 +1912,7 @@ EXPORT_SYMBOL(sock_i_ino); struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, gfp_t priority) { - if (force || atomic_read(&sk->sk_wmem_alloc) < sk->sk_sndbuf) { + if (force || refcount_read(&sk->sk_wmem_alloc) < sk->sk_sndbuf) { struct sk_buff *skb = alloc_skb(size, priority); if (skb) { skb_set_owner_w(skb, sk); @@ -1987,7 +1987,7 @@ static long sock_wait_for_wmem(struct sock *sk, long timeo) break; set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); - if (atomic_read(&sk->sk_wmem_alloc) < sk->sk_sndbuf) + if (refcount_read(&sk->sk_wmem_alloc) < sk->sk_sndbuf) break; if (sk->sk_shutdown & SEND_SHUTDOWN) break; @@ -2310,7 +2310,7 @@ int __sk_mem_raise_allocated(struct sock *sk, int size, int amt, int kind) if (sk->sk_type == SOCK_STREAM) { if (sk->sk_wmem_queued < prot->sysctl_wmem[0]) return 1; - } else if (atomic_read(&sk->sk_wmem_alloc) < + } else if (refcount_read(&sk->sk_wmem_alloc) < prot->sysctl_wmem[0]) return 1; } @@ -2577,7 +2577,7 @@ static void sock_def_write_space(struct sock *sk) /* Do not wake up a writer until he can make "significant" * progress. --DaveM */ - if ((atomic_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) { + if ((refcount_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) { wq = rcu_dereference(sk->sk_wq); if (skwq_has_sleeper(wq)) wake_up_interruptible_sync_poll(&wq->wait, POLLOUT | |