mirror of
https://github.com/adulau/aha.git
synced 2024-12-28 19:56:18 +00:00
6092d04818
[mszeredi@suse.cz] split big patch into managable chunks Add the following functions: dentry_path() seq_dentry() These are similar to d_path() and seq_path(). But instead of calculating the path within a mount namespace, they calculate the path from the root of the filesystem to a given dentry, ignoring mounts completely. Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
#ifndef _LINUX_SEQ_FILE_H
|
|
#define _LINUX_SEQ_FILE_H
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/string.h>
|
|
#include <linux/mutex.h>
|
|
|
|
struct seq_operations;
|
|
struct file;
|
|
struct path;
|
|
struct inode;
|
|
struct dentry;
|
|
|
|
struct seq_file {
|
|
char *buf;
|
|
size_t size;
|
|
size_t from;
|
|
size_t count;
|
|
loff_t index;
|
|
u64 version;
|
|
struct mutex lock;
|
|
const struct seq_operations *op;
|
|
void *private;
|
|
};
|
|
|
|
struct seq_operations {
|
|
void * (*start) (struct seq_file *m, loff_t *pos);
|
|
void (*stop) (struct seq_file *m, void *v);
|
|
void * (*next) (struct seq_file *m, void *v, loff_t *pos);
|
|
int (*show) (struct seq_file *m, void *v);
|
|
};
|
|
|
|
#define SEQ_SKIP 1
|
|
|
|
int seq_open(struct file *, const struct seq_operations *);
|
|
ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
|
|
loff_t seq_lseek(struct file *, loff_t, int);
|
|
int seq_release(struct inode *, struct file *);
|
|
int seq_escape(struct seq_file *, const char *, const char *);
|
|
int seq_putc(struct seq_file *m, char c);
|
|
int seq_puts(struct seq_file *m, const char *s);
|
|
|
|
int seq_printf(struct seq_file *, const char *, ...)
|
|
__attribute__ ((format (printf,2,3)));
|
|
|
|
int seq_path(struct seq_file *, struct path *, char *);
|
|
int seq_dentry(struct seq_file *, struct dentry *, char *);
|
|
|
|
int single_open(struct file *, int (*)(struct seq_file *, void *), void *);
|
|
int single_release(struct inode *, struct file *);
|
|
void *__seq_open_private(struct file *, const struct seq_operations *, int);
|
|
int seq_open_private(struct file *, const struct seq_operations *, int);
|
|
int seq_release_private(struct inode *, struct file *);
|
|
|
|
#define SEQ_START_TOKEN ((void *)1)
|
|
|
|
/*
|
|
* Helpers for iteration over list_head-s in seq_files
|
|
*/
|
|
|
|
extern struct list_head *seq_list_start(struct list_head *head,
|
|
loff_t pos);
|
|
extern struct list_head *seq_list_start_head(struct list_head *head,
|
|
loff_t pos);
|
|
extern struct list_head *seq_list_next(void *v, struct list_head *head,
|
|
loff_t *ppos);
|
|
|
|
#endif
|
|
#endif
|