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[NET]: Make core networking code use seq_open_private 

This concerns the ipv4 and ipv6 code mostly, but also the netlink
and unix sockets.

The netlink code is an example of how to use the __seq_open_private()
call - it saves the net namespace on this private.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2007-10-10 02:29:29 -07:00 committed by David S. Miller
parent 39699037a5
commit cf7732e4cc
15 changed files with 37 additions and 335 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
net/ipv4/arp.c
View File

@ -1378,24 +1378,8 @@ static const struct seq_operations arp_seq_ops = {
static int arp_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct neigh_seq_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &arp_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &arp_seq_ops,
sizeof(struct neigh_seq_state));
}
static const struct file_operations arp_seq_fops = {

20
net/ipv4/fib_hash.c
View File

@ -1039,24 +1039,8 @@ static const struct seq_operations fib_seq_ops = {
static int fib_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct fib_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &fib_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &fib_seq_ops,
sizeof(struct fib_iter_state));
}
static const struct file_operations fib_seq_fops = {

42
net/ipv4/fib_trie.c
View File

@ -2379,25 +2379,8 @@ static const struct seq_operations fib_trie_seq_ops = {
static int fib_trie_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct fib_trie_iter *s = kmalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &fib_trie_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
memset(s, 0, sizeof(*s));
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &fib_trie_seq_ops,
sizeof(struct fib_trie_iter));
}
static const struct file_operations fib_trie_fops = {
@ -2500,25 +2483,8 @@ static const struct seq_operations fib_route_seq_ops = {
static int fib_route_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct fib_trie_iter *s = kmalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &fib_route_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
memset(s, 0, sizeof(*s));
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &fib_route_seq_ops,
sizeof(struct fib_trie_iter));
}
static const struct file_operations fib_route_fops = {

38
net/ipv4/igmp.c
View File

@ -2410,23 +2410,8 @@ static const struct seq_operations igmp_mc_seq_ops = {
static int igmp_mc_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct igmp_mc_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &igmp_mc_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &igmp_mc_seq_ops,
sizeof(struct igmp_mc_iter_state));
}
static const struct file_operations igmp_mc_seq_fops = {
@ -2584,23 +2569,8 @@ static const struct seq_operations igmp_mcf_seq_ops = {
static int igmp_mcf_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct igmp_mcf_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &igmp_mcf_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &igmp_mcf_seq_ops,
sizeof(struct igmp_mcf_iter_state));
}
static const struct file_operations igmp_mcf_seq_fops = {

43
net/ipv4/ipmr.c
View File

@ -1714,26 +1714,8 @@ static const struct seq_operations ipmr_vif_seq_ops = {
static int ipmr_vif_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct ipmr_vif_iter *s = kmalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &ipmr_vif_seq_ops);
if (rc)
goto out_kfree;
s->ct = 0;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &ipmr_vif_seq_ops,
sizeof(struct ipmr_vif_iter));
}
static const struct file_operations ipmr_vif_fops = {
@ -1877,25 +1859,8 @@ static const struct seq_operations ipmr_mfc_seq_ops = {
static int ipmr_mfc_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct ipmr_mfc_iter *s = kmalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &ipmr_mfc_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &ipmr_mfc_seq_ops,
sizeof(struct ipmr_mfc_iter));
}
static const struct file_operations ipmr_mfc_fops = {

20
net/ipv4/ipvs/ip_vs_ctl.c
View File

@ -1792,24 +1792,8 @@ static const struct seq_operations ip_vs_info_seq_ops = {
static int ip_vs_info_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct ip_vs_iter *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &ip_vs_info_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &ip_vs_info_seq_ops,
sizeof(struct ip_vs_iter));
}
static const struct file_operations ip_vs_info_fops = {

20
net/ipv4/raw.c
View File

@ -902,24 +902,8 @@ static const struct seq_operations raw_seq_ops = {
static int raw_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct raw_iter_state *s;
s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &raw_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &raw_seq_ops,
sizeof(struct raw_iter_state));
}
static const struct file_operations raw_seq_fops = {

19
net/ipv4/route.c
View File

@ -375,23 +375,8 @@ static const struct seq_operations rt_cache_seq_ops = {
static int rt_cache_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct rt_cache_iter_state *s;
s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &rt_cache_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &rt_cache_seq_ops,
sizeof(struct rt_cache_iter_state));
}
static const struct file_operations rt_cache_seq_fops = {

20
net/ipv6/addrconf.c
View File

@ -2806,24 +2806,8 @@ static const struct seq_operations if6_seq_ops = {
static int if6_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct if6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &if6_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &if6_seq_ops,
sizeof(struct if6_iter_state));
}
static const struct file_operations if6_fops = {

20
net/ipv6/anycast.c
View File

@ -549,24 +549,8 @@ static const struct seq_operations ac6_seq_ops = {
static int ac6_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct ac6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &ac6_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &ac6_seq_ops,
sizeof(struct ac6_iter_state));
}
static const struct file_operations ac6_seq_fops = {

20
net/ipv6/ip6_flowlabel.c
View File

@ -658,24 +658,8 @@ static const struct seq_operations ip6fl_seq_ops = {
static int ip6fl_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct ip6fl_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &ip6fl_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &ip6fl_seq_ops,
sizeof(struct ip6fl_iter_state));
}
static const struct file_operations ip6fl_seq_fops = {

40
net/ipv6/mcast.c
View File

@ -2426,24 +2426,8 @@ static const struct seq_operations igmp6_mc_seq_ops = {
static int igmp6_mc_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct igmp6_mc_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &igmp6_mc_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &igmp6_mc_seq_ops,
sizeof(struct igmp6_mc_iter_state));
}
static const struct file_operations igmp6_mc_seq_fops = {
@ -2600,24 +2584,8 @@ static const struct seq_operations igmp6_mcf_seq_ops = {
static int igmp6_mcf_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct igmp6_mcf_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &igmp6_mcf_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &igmp6_mcf_seq_ops,
sizeof(struct igmp6_mcf_iter_state));
}
static const struct file_operations igmp6_mcf_seq_fops = {

17
net/ipv6/raw.c
View File

@ -1289,21 +1289,8 @@ static const struct seq_operations raw6_seq_ops = {
static int raw6_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
struct raw6_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s)
goto out;
rc = seq_open(file, &raw6_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = s;
out:
return rc;
out_kfree:
kfree(s);
goto out;
return seq_open_private(file, &raw6_seq_ops,
sizeof(struct raw6_iter_state));
}
static const struct file_operations raw6_seq_fops = {

13
net/netlink/af_netlink.c
View File

@ -1845,27 +1845,18 @@ static const struct seq_operations netlink_seq_ops = {
static int netlink_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
struct nl_seq_iter *iter;
int err;
iter = kzalloc(sizeof(*iter), GFP_KERNEL);
iter = __seq_open_private(file, &netlink_seq_ops, sizeof(*iter));
if (!iter)
return -ENOMEM;
err = seq_open(file, &netlink_seq_ops);
if (err) {
kfree(iter);
return err;
}
seq = file->private_data;
seq->private = iter;
iter->net = get_proc_net(inode);
if (!iter->net) {
seq_release_private(inode, file);
return -ENXIO;
}
return 0;
}

20
net/unix/af_unix.c
View File

@ -2086,25 +2086,7 @@ static const struct seq_operations unix_seq_ops = {
static int unix_seq_open(struct inode *inode, struct file *file)
{
struct seq_file *seq;
int rc = -ENOMEM;
int *iter = kmalloc(sizeof(int), GFP_KERNEL);
if (!iter)
goto out;
rc = seq_open(file, &unix_seq_ops);
if (rc)
goto out_kfree;
seq = file->private_data;
seq->private = iter;
*iter = 0;
out:
return rc;
out_kfree:
kfree(iter);
goto out;
return seq_open_private(file, &unix_seq_ops, sizeof(int));
}
static const struct file_operations unix_seq_fops = {