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Date: Sat, 1 Nov 2008 18:15:49 +0800
From: Jianjun Kong <jianjun@...ux.org>
To: "David S. Miller" <davem@...emloft.net>
Cc: netdev <netdev@...r.kernel.org>,
Linux-Kernel-Mailing-List <linux-kernel@...r.kernel.org>
Subject: [PATCH/1] nets:clean up net/unix/af_unix.c garbage.c
sysctl_net_unix.c
clean up net/unix/af_unix.c garbage.c sysctl_net_unix.c
Signed-off-by: Jianjun Kong <jianjun@...ux.org>
---
net/unix/af_unix.c | 73 +++++++++++++++++++++----------------------
net/unix/garbage.c | 12 +++---
net/unix/sysctl_net_unix.c | 1 -
3 files changed, 42 insertions(+), 44 deletions(-)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index dc504d3..0b80634 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -211,7 +211,7 @@ static int unix_mkname(struct sockaddr_un * sunaddr, int len, unsigned *hashp)
* we are guaranteed that it is a valid memory location in our
* kernel address buffer.
*/
- ((char *)sunaddr)[len]=0;
+ ((char *)sunaddr)[len] = 0;
len = strlen(sunaddr->sun_path)+1+sizeof(short);
return len;
}
@@ -392,9 +392,9 @@ static int unix_release_sock (struct sock *sk, int embrion)
wake_up_interruptible_all(&u->peer_wait);
- skpair=unix_peer(sk);
+ skpair = unix_peer(sk);
- if (skpair!=NULL) {
+ if (skpair != NULL) {
if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) {
unix_state_lock(skpair);
/* No more writes */
@@ -414,7 +414,7 @@ static int unix_release_sock (struct sock *sk, int embrion)
/* Try to flush out this socket. Throw out buffers at least */
while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
- if (state==TCP_LISTEN)
+ if (state == TCP_LISTEN)
unix_release_sock(skb->sk, 1);
/* passed fds are erased in the kfree_skb hook */
kfree_skb(skb);
@@ -630,7 +630,7 @@ static int unix_create(struct net *net, struct socket *sock, int protocol)
* nothing uses it.
*/
case SOCK_RAW:
- sock->type=SOCK_DGRAM;
+ sock->type = SOCK_DGRAM;
case SOCK_DGRAM:
sock->ops = &unix_dgram_ops;
break;
@@ -736,14 +736,14 @@ static struct sock *unix_find_other(struct net *net,
path_put(&path);
- err=-EPROTOTYPE;
+ err = -EPROTOTYPE;
if (u->sk_type != type) {
sock_put(u);
goto fail;
}
} else {
err = -ECONNREFUSED;
- u=unix_find_socket_byname(net, sunname, len, type, hash);
+ u = unix_find_socket_byname(net, sunname, len, type, hash);
if (u) {
struct dentry *dentry;
dentry = unix_sk(u)->dentry;
@@ -757,7 +757,7 @@ static struct sock *unix_find_other(struct net *net,
put_fail:
path_put(&path);
fail:
- *error=err;
+ *error = err;
return NULL;
}
@@ -767,7 +767,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
- struct sockaddr_un *sunaddr=(struct sockaddr_un *)uaddr;
+ struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
struct dentry * dentry = NULL;
struct nameidata nd;
int err;
@@ -779,7 +779,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
if (sunaddr->sun_family != AF_UNIX)
goto out;
- if (addr_len==sizeof(short)) {
+ if (addr_len == sizeof(short)) {
err = unix_autobind(sock);
goto out;
}
@@ -875,8 +875,8 @@ out_mknod_unlock:
mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
path_put(&nd.path);
out_mknod_parent:
- if (err==-EEXIST)
- err=-EADDRINUSE;
+ if (err == -EEXIST)
+ err = -EADDRINUSE;
unix_release_addr(addr);
goto out_up;
}
@@ -911,7 +911,7 @@ static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
{
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
- struct sockaddr_un *sunaddr=(struct sockaddr_un*)addr;
+ struct sockaddr_un *sunaddr = (struct sockaddr_un *)addr;
struct sock *other;
unsigned hash;
int err;
@@ -927,7 +927,7 @@ static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
goto out;
restart:
- other=unix_find_other(net, sunaddr, alen, sock->type, hash, &err);
+ other = unix_find_other(net, sunaddr, alen, sock->type, hash, &err);
if (!other)
goto out;
@@ -961,14 +961,14 @@ restart:
*/
if (unix_peer(sk)) {
struct sock *old_peer = unix_peer(sk);
- unix_peer(sk)=other;
+ unix_peer(sk) = other;
unix_state_double_unlock(sk, other);
if (other != old_peer)
unix_dgram_disconnected(sk, old_peer);
sock_put(old_peer);
} else {
- unix_peer(sk)=other;
+ unix_peer(sk) = other;
unix_state_double_unlock(sk, other);
}
return 0;
@@ -1004,7 +1004,7 @@ static long unix_wait_for_peer(struct sock *other, long timeo)
static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
int addr_len, int flags)
{
- struct sockaddr_un *sunaddr=(struct sockaddr_un *)uaddr;
+ struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk), *newu, *otheru;
@@ -1179,13 +1179,13 @@ out:
static int unix_socketpair(struct socket *socka, struct socket *sockb)
{
- struct sock *ska=socka->sk, *skb = sockb->sk;
+ struct sock *ska = socka->sk, *skb = sockb->sk;
/* Join our sockets back to back */
sock_hold(ska);
sock_hold(skb);
- unix_peer(ska)=skb;
- unix_peer(skb)=ska;
+ unix_peer(ska) = skb;
+ unix_peer(skb) = ska;
ska->sk_peercred.pid = skb->sk_peercred.pid = task_tgid_vnr(current);
ska->sk_peercred.uid = skb->sk_peercred.uid = current->euid;
ska->sk_peercred.gid = skb->sk_peercred.gid = current->egid;
@@ -1246,7 +1246,7 @@ static int unix_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_
{
struct sock *sk = sock->sk;
struct unix_sock *u;
- struct sockaddr_un *sunaddr=(struct sockaddr_un *)uaddr;
+ struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
int err = 0;
if (peer) {
@@ -1323,7 +1323,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
- struct sockaddr_un *sunaddr=msg->msg_name;
+ struct sockaddr_un *sunaddr = msg->msg_name;
struct sock *other = NULL;
int namelen = 0; /* fake GCC */
int err;
@@ -1364,7 +1364,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
goto out;
skb = sock_alloc_send_skb(sk, len, msg->msg_flags&MSG_DONTWAIT, &err);
- if (skb==NULL)
+ if (skb == NULL)
goto out;
memcpy(UNIXCREDS(skb), &siocb->scm->creds, sizeof(struct ucred));
@@ -1387,7 +1387,7 @@ restart:
other = unix_find_other(net, sunaddr, namelen, sk->sk_type,
hash, &err);
- if (other==NULL)
+ if (other == NULL)
goto out_free;
}
@@ -1407,7 +1407,7 @@ restart:
err = 0;
unix_state_lock(sk);
if (unix_peer(sk) == other) {
- unix_peer(sk)=NULL;
+ unix_peer(sk) = NULL;
unix_state_unlock(sk);
unix_dgram_disconnected(sk, other);
@@ -1473,10 +1473,10 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct sock *sk = sock->sk;
struct sock *other = NULL;
- struct sockaddr_un *sunaddr=msg->msg_name;
+ struct sockaddr_un *sunaddr = msg->msg_name;
int err,size;
struct sk_buff *skb;
- int sent=0;
+ int sent = 0;
struct scm_cookie tmp_scm;
if (NULL == siocb->scm)
@@ -1523,9 +1523,9 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
* Grab a buffer
*/
- skb=sock_alloc_send_skb(sk,size,msg->msg_flags&MSG_DONTWAIT, &err);
+ skb = sock_alloc_send_skb(sk,size,msg->msg_flags&MSG_DONTWAIT, &err);
- if (skb==NULL)
+ if (skb == NULL)
goto out_err;
/*
@@ -1555,7 +1555,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
skb_queue_tail(&other->sk_receive_queue, skb);
unix_state_unlock(other);
other->sk_data_ready(other, size);
- sent+=size;
+ sent += size;
}
scm_destroy(siocb->scm);
@@ -1734,7 +1734,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
struct scm_cookie tmp_scm;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
- struct sockaddr_un *sunaddr=msg->msg_name;
+ struct sockaddr_un *sunaddr = msg->msg_name;
int copied = 0;
int check_creds = 0;
int target;
@@ -1772,7 +1772,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
unix_state_lock(sk);
skb = skb_dequeue(&sk->sk_receive_queue);
- if (skb==NULL)
+ if (skb == NULL)
{
if (copied >= target)
goto unlock;
@@ -1884,7 +1884,7 @@ static int unix_shutdown(struct socket *sock, int mode)
if (mode) {
unix_state_lock(sk);
sk->sk_shutdown |= mode;
- other=unix_peer(sk);
+ other = unix_peer(sk);
if (other)
sock_hold(other);
unix_state_unlock(sk);
@@ -1919,7 +1919,7 @@ static int unix_shutdown(struct socket *sock, int mode)
static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
struct sock *sk = sock->sk;
- long amount=0;
+ long amount = 0;
int err;
switch(cmd)
@@ -1945,7 +1945,7 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
} else {
skb = skb_peek(&sk->sk_receive_queue);
if (skb)
- amount=skb->len;
+ amount = skb->len;
}
spin_unlock(&sk->sk_receive_queue.lock);
err = put_user(amount, (int __user *)arg);
@@ -2077,6 +2077,7 @@ struct unix_iter_state {
struct seq_net_private p;
int i;
};
+
static struct sock *unix_seq_idx(struct seq_file *seq, loff_t pos)
{
struct unix_iter_state *iter = seq->private;
@@ -2093,7 +2094,6 @@ static struct sock *unix_seq_idx(struct seq_file *seq, loff_t pos)
return NULL;
}
-
static void *unix_seq_start(struct seq_file *seq, loff_t *pos)
__acquires(unix_table_lock)
{
@@ -2173,7 +2173,6 @@ static const struct seq_operations unix_seq_ops = {
.show = unix_seq_show,
};
-
static int unix_seq_open(struct inode *inode, struct file *file)
{
return seq_open_net(inode, file, &unix_seq_ops,
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 2a27b84..00734e2 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -104,8 +104,8 @@ static struct sock *unix_get_socket(struct file *filp)
* Socket ?
*/
if (S_ISSOCK(inode->i_mode)) {
- struct socket * sock = SOCKET_I(inode);
- struct sock * s = sock->sk;
+ struct socket *sock = SOCKET_I(inode);
+ struct sock *s = sock->sk;
/*
* PF_UNIX ?
@@ -124,7 +124,7 @@ static struct sock *unix_get_socket(struct file *filp)
void unix_inflight(struct file *fp)
{
struct sock *s = unix_get_socket(fp);
- if(s) {
+ if (s) {
struct unix_sock *u = unix_sk(s);
spin_lock(&unix_gc_lock);
if (atomic_long_inc_return(&u->inflight) == 1) {
@@ -141,7 +141,7 @@ void unix_inflight(struct file *fp)
void unix_notinflight(struct file *fp)
{
struct sock *s = unix_get_socket(fp);
- if(s) {
+ if (s) {
struct unix_sock *u = unix_sk(s);
spin_lock(&unix_gc_lock);
BUG_ON(list_empty(&u->link));
@@ -154,7 +154,7 @@ void unix_notinflight(struct file *fp)
static inline struct sk_buff *sock_queue_head(struct sock *sk)
{
- return (struct sk_buff *) &sk->sk_receive_queue;
+ return (struct sk_buff *)&sk->sk_receive_queue;
}
#define receive_queue_for_each_skb(sk, next, skb) \
@@ -339,7 +339,7 @@ void unix_gc(void)
*/
skb_queue_head_init(&hitlist);
list_for_each_entry(u, &gc_candidates, link)
- scan_children(&u->sk, inc_inflight, &hitlist);
+ scan_children(&u->sk, inc_inflight, &hitlist);
spin_unlock(&unix_gc_lock);
diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
index 77513d7..1f4040c 100644
--- a/net/unix/sysctl_net_unix.c
+++ b/net/unix/sysctl_net_unix.c
@@ -61,4 +61,3 @@ void unix_sysctl_unregister(struct net *net)
unregister_sysctl_table(net->unx.ctl);
kfree(table);
}
-
--
1.5.6.3
--
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