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proc: introduce proc_create_net{,_data}

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Variants of proc_create{,_data} that directly take a struct seq_operations
and deal with network namespaces in ->open and ->release.  All callers of
proc_create + seq_open_net converted over, and seq_{open,release}_net are
removed entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
2018-04-10 19:42:55 +02:00
parent a2dcdee374
commit c350637227
57 changed files with 202 additions and 939 deletions
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21
net/ipv4/udp.c
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@@ -2706,26 +2706,13 @@ int udp4_seq_show(struct seq_file *seq, void *v)
return 0;
}
static const struct seq_operations udp_seq_ops = {
const struct seq_operations udp_seq_ops = {
.start = udp_seq_start,
.next = udp_seq_next,
.stop = udp_seq_stop,
.show = udp4_seq_show,
};
static int udp_seq_open(struct inode *inode, struct file *file)
{
return seq_open_net(inode, file, &udp_seq_ops,
sizeof(struct udp_iter_state));
}
const struct file_operations udp_afinfo_seq_fops = {
.open = udp_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_net
};
EXPORT_SYMBOL(udp_afinfo_seq_fops);
EXPORT_SYMBOL(udp_seq_ops);
static struct udp_seq_afinfo udp4_seq_afinfo = {
.family = AF_INET,
@@ -2734,8 +2721,8 @@ static struct udp_seq_afinfo udp4_seq_afinfo = {
static int __net_init udp4_proc_init_net(struct net *net)
{
if (!proc_create_data("udp", 0444, net->proc_net, &udp_afinfo_seq_fops,
&udp4_seq_afinfo))
if (!proc_create_net_data("udp", 0444, net->proc_net, &udp_seq_ops,
sizeof(struct udp_iter_state), &udp4_seq_afinfo))
return -ENOMEM;
return 0;
}