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net: ipv4: route.c: simplify procfs code

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proc_creat_seq() that directly take a struct seq_operations,
and deal with network namespaces in ->open.

Signed-off-by: Yejune Deng <yejune.deng@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yejune Deng 2021-03-16 10:57:36 +08:00 committed by David S. Miller
parent 77f0cae15a
commit f105f26e45
1 changed files with 4 additions and 30 deletions
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34
net/ipv4/route.c
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@ -234,19 +234,6 @@ static const struct seq_operations rt_cache_seq_ops = {
.show = rt_cache_seq_show,
};
static int rt_cache_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &rt_cache_seq_ops);
}
static const struct proc_ops rt_cache_proc_ops = {
.proc_open = rt_cache_seq_open,
.proc_read = seq_read,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
};
static void *rt_cpu_seq_start(struct seq_file *seq, loff_t *pos)
{
int cpu;
@ -324,19 +311,6 @@ static const struct seq_operations rt_cpu_seq_ops = {
.show = rt_cpu_seq_show,
};
static int rt_cpu_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &rt_cpu_seq_ops);
}
static const struct proc_ops rt_cpu_proc_ops = {
.proc_open = rt_cpu_seq_open,
.proc_read = seq_read,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
};
#ifdef CONFIG_IP_ROUTE_CLASSID
static int rt_acct_proc_show(struct seq_file *m, void *v)
{
@ -367,13 +341,13 @@ static int __net_init ip_rt_do_proc_init(struct net *net)
{
struct proc_dir_entry *pde;
pde = proc_create("rt_cache", 0444, net->proc_net,
&rt_cache_proc_ops);
pde = proc_create_seq("rt_cache", 0444, net->proc_net,
&rt_cache_seq_ops);
if (!pde)
goto err1;
pde = proc_create("rt_cache", 0444,
net->proc_net_stat, &rt_cpu_proc_ops);
pde = proc_create_seq("rt_cache", 0444, net->proc_net_stat,
&rt_cpu_seq_ops);
if (!pde)
goto err2;