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proc: introduce proc_create_single{,_data}

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Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
2018-05-15 15:57:23 +02:00
parent 44414d82cf
commit 3f3942aca6
85 changed files with 235 additions and 1509 deletions
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21
net/8021q/vlanproc.c
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@@ -86,22 +86,6 @@ static const struct file_operations vlan_fops = {
.release = seq_release_net,
};
/*
* /proc/net/vlan/<device> file and inode operations
*/
static int vlandev_seq_open(struct inode *inode, struct file *file)
{
return single_open(file, vlandev_seq_show, PDE_DATA(inode));
}
static const struct file_operations vlandev_fops = {
.open = vlandev_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
/*
* Proc filesystem directory entries.
*/
@@ -171,9 +155,8 @@ int vlan_proc_add_dev(struct net_device *vlandev)
if (!strcmp(vlandev->name, name_conf))
return -EINVAL;
vlan->dent =
proc_create_data(vlandev->name, S_IFREG | 0600,
vn->proc_vlan_dir, &vlandev_fops, vlandev);
vlan->dent = proc_create_single_data(vlandev->name, S_IFREG | 0600,
vn->proc_vlan_dir, vlandev_seq_show, vlandev);
if (!vlan->dent)
return -ENOBUFS;
return 0;