mirror of https://gitee.com/openkylin/linux.git
net: Cleanup of af_unix
This is a pure cleanup of net/unix/af_unix.c to meet current code style standards Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
David S. Miller
parent
1910299636
commit
6eba6a372b
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@ -164,7 +164,7 @@ static inline int unix_our_peer(struct sock *sk, struct sock *osk)
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static inline int unix_may_send(struct sock *sk, struct sock *osk)
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{
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return (unix_peer(osk) == NULL || unix_our_peer(sk, osk));
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return unix_peer(osk) == NULL || unix_our_peer(sk, osk);
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}
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static inline int unix_recvq_full(struct sock const *sk)
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@ -197,7 +197,7 @@ static inline void unix_release_addr(struct unix_address *addr)
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* - if started by zero, it is abstract name.
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*/
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static int unix_mkname(struct sockaddr_un * sunaddr, int len, unsigned *hashp)
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static int unix_mkname(struct sockaddr_un *sunaddr, int len, unsigned *hashp)
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{
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if (len <= sizeof(short) || len > sizeof(*sunaddr))
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return -EINVAL;
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@ -216,7 +216,7 @@ static int unix_mkname(struct sockaddr_un * sunaddr, int len, unsigned *hashp)
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return len;
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}
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*hashp = unix_hash_fold(csum_partial((char*)sunaddr, len, 0));
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*hashp = unix_hash_fold(csum_partial((char *)sunaddr, len, 0));
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return len;
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}
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@ -295,8 +295,7 @@ static struct sock *unix_find_socket_byinode(struct net *net, struct inode *i)
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if (!net_eq(sock_net(s), net))
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continue;
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if(dentry && dentry->d_inode == i)
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{
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if (dentry && dentry->d_inode == i) {
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sock_hold(s);
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goto found;
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}
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@ -354,7 +353,7 @@ static void unix_sock_destructor(struct sock *sk)
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WARN_ON(!sk_unhashed(sk));
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WARN_ON(sk->sk_socket);
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if (!sock_flag(sk, SOCK_DEAD)) {
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printk("Attempt to release alive unix socket: %p\n", sk);
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printk(KERN_DEBUG "Attempt to release alive unix socket: %p\n", sk);
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return;
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}
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@ -363,11 +362,12 @@ static void unix_sock_destructor(struct sock *sk)
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atomic_dec(&unix_nr_socks);
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#ifdef UNIX_REFCNT_DEBUG
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printk(KERN_DEBUG "UNIX %p is destroyed, %d are still alive.\n", sk, atomic_read(&unix_nr_socks));
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printk(KERN_DEBUG "UNIX %p is destroyed, %d are still alive.\n", sk,
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atomic_read(&unix_nr_socks));
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#endif
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}
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static int unix_release_sock (struct sock *sk, int embrion)
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static int unix_release_sock(struct sock *sk, int embrion)
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{
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struct unix_sock *u = unix_sk(sk);
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struct dentry *dentry;
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@ -453,7 +453,7 @@ static int unix_listen(struct socket *sock, int backlog)
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struct unix_sock *u = unix_sk(sk);
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err = -EOPNOTSUPP;
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if (sock->type!=SOCK_STREAM && sock->type!=SOCK_SEQPACKET)
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if (sock->type != SOCK_STREAM && sock->type != SOCK_SEQPACKET)
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goto out; /* Only stream/seqpacket sockets accept */
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err = -EINVAL;
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if (!u->addr)
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@ -579,7 +579,7 @@ static struct proto unix_proto = {
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*/
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static struct lock_class_key af_unix_sk_receive_queue_lock_key;
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static struct sock * unix_create1(struct net *net, struct socket *sock)
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static struct sock *unix_create1(struct net *net, struct socket *sock)
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{
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struct sock *sk = NULL;
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struct unix_sock *u;
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@ -592,7 +592,7 @@ static struct sock * unix_create1(struct net *net, struct socket *sock)
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if (!sk)
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goto out;
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sock_init_data(sock,sk);
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sock_init_data(sock, sk);
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lockdep_set_class(&sk->sk_receive_queue.lock,
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&af_unix_sk_receive_queue_lock_key);
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@ -653,7 +653,7 @@ static int unix_release(struct socket *sock)
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sock->sk = NULL;
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return unix_release_sock (sk, 0);
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return unix_release_sock(sk, 0);
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}
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static int unix_autobind(struct socket *sock)
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@ -662,7 +662,7 @@ static int unix_autobind(struct socket *sock)
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struct net *net = sock_net(sk);
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struct unix_sock *u = unix_sk(sk);
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static u32 ordernum = 1;
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struct unix_address * addr;
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struct unix_address *addr;
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int err;
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mutex_lock(&u->readlock);
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@ -681,7 +681,7 @@ static int unix_autobind(struct socket *sock)
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retry:
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addr->len = sprintf(addr->name->sun_path+1, "%05x", ordernum) + 1 + sizeof(short);
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addr->hash = unix_hash_fold(csum_partial((void*)addr->name, addr->len, 0));
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addr->hash = unix_hash_fold(csum_partial((void *)addr->name, addr->len, 0));
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spin_lock(&unix_table_lock);
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ordernum = (ordernum+1)&0xFFFFF;
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@ -768,7 +768,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
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struct net *net = sock_net(sk);
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struct unix_sock *u = unix_sk(sk);
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struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
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struct dentry * dentry = NULL;
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struct dentry *dentry = NULL;
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struct nameidata nd;
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int err;
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unsigned hash;
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@ -1207,7 +1207,7 @@ static int unix_accept(struct socket *sock, struct socket *newsock, int flags)
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int err;
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err = -EOPNOTSUPP;
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if (sock->type!=SOCK_STREAM && sock->type!=SOCK_SEQPACKET)
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if (sock->type != SOCK_STREAM && sock->type != SOCK_SEQPACKET)
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goto out;
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err = -EINVAL;
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@ -1286,7 +1286,7 @@ static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb)
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skb->destructor = sock_wfree;
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UNIXCB(skb).fp = NULL;
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for (i=scm->fp->count-1; i>=0; i--)
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for (i = scm->fp->count-1; i >= 0; i--)
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unix_notinflight(scm->fp->fp[i]);
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}
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@ -1315,7 +1315,7 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
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if (!UNIXCB(skb).fp)
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return -ENOMEM;
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for (i=scm->fp->count-1; i>=0; i--)
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for (i = scm->fp->count-1; i >= 0; i--)
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unix_inflight(scm->fp->fp[i]);
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skb->destructor = unix_destruct_fds;
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return 0;
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@ -1385,7 +1385,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
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unix_get_secdata(siocb->scm, skb);
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skb_reset_transport_header(skb);
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err = memcpy_fromiovec(skb_put(skb,len), msg->msg_iov, len);
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err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
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if (err)
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goto out_free;
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@ -1486,7 +1486,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
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struct sock *sk = sock->sk;
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struct sock *other = NULL;
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struct sockaddr_un *sunaddr = msg->msg_name;
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int err,size;
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int err, size;
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struct sk_buff *skb;
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int sent = 0;
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struct scm_cookie tmp_scm;
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@ -1515,8 +1515,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
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if (sk->sk_shutdown & SEND_SHUTDOWN)
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goto pipe_err;
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while(sent < len)
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{
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while (sent < len) {
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/*
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* Optimisation for the fact that under 0.01% of X
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* messages typically need breaking up.
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@ -1535,7 +1534,8 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
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* Grab a buffer
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*/
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skb = sock_alloc_send_skb(sk,size,msg->msg_flags&MSG_DONTWAIT, &err);
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skb = sock_alloc_send_skb(sk, size, msg->msg_flags&MSG_DONTWAIT,
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&err);
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if (skb == NULL)
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goto out_err;
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@ -1558,7 +1558,8 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
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}
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}
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if ((err = memcpy_fromiovec(skb_put(skb,size), msg->msg_iov, size)) != 0) {
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err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
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if (err) {
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kfree_skb(skb);
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goto out_err;
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}
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@ -1584,8 +1585,8 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
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unix_state_unlock(other);
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kfree_skb(skb);
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pipe_err:
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if (sent==0 && !(msg->msg_flags&MSG_NOSIGNAL))
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send_sig(SIGPIPE,current,0);
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if (sent == 0 && !(msg->msg_flags&MSG_NOSIGNAL))
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send_sig(SIGPIPE, current, 0);
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err = -EPIPE;
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out_err:
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scm_destroy(siocb->scm);
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@ -1675,13 +1676,10 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
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siocb->scm->creds = *UNIXCREDS(skb);
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unix_set_secdata(siocb->scm, skb);
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if (!(flags & MSG_PEEK))
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{
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if (!(flags & MSG_PEEK)) {
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if (UNIXCB(skb).fp)
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unix_detach_fds(siocb->scm, skb);
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}
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else
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{
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} else {
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/* It is questionable: on PEEK we could:
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- do not return fds - good, but too simple 8)
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- return fds, and do not return them on read (old strategy,
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@ -1702,7 +1700,7 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
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scm_recv(sock, msg, siocb->scm, flags);
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out_free:
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skb_free_datagram(sk,skb);
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skb_free_datagram(sk, skb);
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out_unlock:
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mutex_unlock(&u->readlock);
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out:
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@ -1713,7 +1711,7 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
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* Sleep until data has arrive. But check for races..
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*/
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static long unix_stream_data_wait(struct sock * sk, long timeo)
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static long unix_stream_data_wait(struct sock *sk, long timeo)
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{
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DEFINE_WAIT(wait);
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@ -1782,15 +1780,13 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
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mutex_lock(&u->readlock);
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do
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{
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do {
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int chunk;
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struct sk_buff *skb;
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unix_state_lock(sk);
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skb = skb_dequeue(&sk->sk_receive_queue);
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if (skb == NULL)
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{
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if (skb == NULL) {
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if (copied >= target)
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goto unlock;
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@ -1798,7 +1794,8 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
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* POSIX 1003.1g mandates this order.
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*/
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if ((err = sock_error(sk)) != 0)
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err = sock_error(sk);
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if (err)
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goto unlock;
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if (sk->sk_shutdown & RCV_SHUTDOWN)
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goto unlock;
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@ -1825,7 +1822,8 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
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if (check_creds) {
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/* Never glue messages from different writers */
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if (memcmp(UNIXCREDS(skb), &siocb->scm->creds, sizeof(siocb->scm->creds)) != 0) {
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if (memcmp(UNIXCREDS(skb), &siocb->scm->creds,
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sizeof(siocb->scm->creds)) != 0) {
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skb_queue_head(&sk->sk_receive_queue, skb);
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break;
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}
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@ -1836,8 +1834,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
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}
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/* Copy address just once */
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if (sunaddr)
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{
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if (sunaddr) {
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unix_copy_addr(msg, skb->sk);
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sunaddr = NULL;
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}
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@ -1853,16 +1850,14 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
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size -= chunk;
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/* Mark read part of skb as used */
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if (!(flags & MSG_PEEK))
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{
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if (!(flags & MSG_PEEK)) {
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skb_pull(skb, chunk);
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if (UNIXCB(skb).fp)
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unix_detach_fds(siocb->scm, skb);
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/* put the skb back if we didn't use it up.. */
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if (skb->len)
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{
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if (skb->len) {
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skb_queue_head(&sk->sk_receive_queue, skb);
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break;
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}
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@ -1871,9 +1866,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
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if (siocb->scm->fp)
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break;
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}
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else
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{
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} else {
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/* It is questionable, see note in unix_dgram_recvmsg.
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*/
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if (UNIXCB(skb).fp)
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@ -1939,8 +1932,7 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
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long amount = 0;
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int err;
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switch(cmd)
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{
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switch (cmd) {
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case SIOCOUTQ:
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amount = atomic_read(&sk->sk_wmem_alloc);
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err = put_user(amount, (int __user *)arg);
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@ -1976,7 +1968,7 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
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return err;
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}
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static unsigned int unix_poll(struct file * file, struct socket *sock, poll_table *wait)
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static unsigned int unix_poll(struct file *file, struct socket *sock, poll_table *wait)
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{
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struct sock *sk = sock->sk;
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unsigned int mask;
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@ -1998,7 +1990,8 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl
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mask |= POLLIN | POLLRDNORM;
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/* Connection-based need to check for termination and startup */
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if ((sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) && sk->sk_state == TCP_CLOSE)
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if ((sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) &&
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sk->sk_state == TCP_CLOSE)
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mask |= POLLHUP;
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/*
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