linux-brain/include/linux/seq_file_net.h
Christoph Hellwig c350637227 proc: introduce proc_create_net{,_data}
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>
2018-05-16 07:24:30 +02:00

42 lines
876 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __SEQ_FILE_NET_H__
#define __SEQ_FILE_NET_H__
#include <linux/seq_file.h>
struct net;
extern struct net init_net;
struct seq_net_private {
#ifdef CONFIG_NET_NS
struct net *net;
#endif
};
int single_open_net(struct inode *, struct file *file,
int (*show)(struct seq_file *, void *));
int single_release_net(struct inode *, struct file *);
static inline struct net *seq_file_net(struct seq_file *seq)
{
#ifdef CONFIG_NET_NS
return ((struct seq_net_private *)seq->private)->net;
#else
return &init_net;
#endif
}
/*
* This one is needed for single_open_net since net is stored directly in
* private not as a struct i.e. seq_file_net can't be used.
*/
static inline struct net *seq_file_single_net(struct seq_file *seq)
{
#ifdef CONFIG_NET_NS
return (struct net *)seq->private;
#else
return &init_net;
#endif
}
#endif