linux-stable/include/linux/seq_file_net.h
Christoph Hellwig 3617d9496c proc: introduce proc_create_net_single
Variant of proc_create_data that directly take a seq_file show
callback and deals with network namespaces in ->open and ->release.
All callers of proc_create + single_open_net converted over, and
single_{open,release}_net are removed entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16 07:24:30 +02:00

38 lines
730 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
};
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 proc_create_net_single 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