seq_file.c File Reference

#include <linux/fs.h>
#include <linux/export.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/cred.h>
#include <asm/uaccess.h>
#include <asm/page.h>

Go to the source code of this file.

Functions
int	seq_open (struct file *file, const struct seq_operations *op)
	EXPORT_SYMBOL (seq_open)
ssize_t	seq_read (struct file *file, char __user *buf, size_t size, loff_t *ppos)
	EXPORT_SYMBOL (seq_read)
loff_t	seq_lseek (struct file *file, loff_t offset, int origin)
	EXPORT_SYMBOL (seq_lseek)
int	seq_release (struct inode *inode, struct file *file)
	EXPORT_SYMBOL (seq_release)
int	seq_escape (struct seq_file *m, const char *s, const char *esc)
	EXPORT_SYMBOL (seq_escape)
int	seq_vprintf (struct seq_file *m, const char *f, va_list args)
	EXPORT_SYMBOL (seq_vprintf)
int	seq_printf (struct seq_file *m, const char *f,...)
	EXPORT_SYMBOL (seq_printf)
char *	mangle_path (char *s, const char *p, const char *esc)
	EXPORT_SYMBOL (mangle_path)
int	seq_path (struct seq_file *m, const struct path *path, const char *esc)
	EXPORT_SYMBOL (seq_path)
int	seq_path_root (struct seq_file *m, const struct path *path, const struct path *root, const char *esc)
int	seq_dentry (struct seq_file *m, struct dentry *dentry, const char *esc)
int	seq_bitmap (struct seq_file *m, const unsigned long *bits, unsigned int nr_bits)
	EXPORT_SYMBOL (seq_bitmap)
int	seq_bitmap_list (struct seq_file *m, const unsigned long *bits, unsigned int nr_bits)
	EXPORT_SYMBOL (seq_bitmap_list)
int	single_open (struct file *file, int(*show)(struct seq_file *, void *), void *data)
	EXPORT_SYMBOL (single_open)
int	single_release (struct inode *inode, struct file *file)
	EXPORT_SYMBOL (single_release)
int	seq_release_private (struct inode *inode, struct file *file)
	EXPORT_SYMBOL (seq_release_private)
void *	__seq_open_private (struct file *f, const struct seq_operations *ops, int psize)
	EXPORT_SYMBOL (__seq_open_private)
int	seq_open_private (struct file *filp, const struct seq_operations *ops, int psize)
	EXPORT_SYMBOL (seq_open_private)
int	seq_putc (struct seq_file *m, char c)
	EXPORT_SYMBOL (seq_putc)
int	seq_puts (struct seq_file *m, const char *s)
	EXPORT_SYMBOL (seq_puts)
int	seq_put_decimal_ull (struct seq_file *m, char delimiter, unsigned long long num)
	EXPORT_SYMBOL (seq_put_decimal_ull)
int	seq_put_decimal_ll (struct seq_file *m, char delimiter, long long num)
	EXPORT_SYMBOL (seq_put_decimal_ll)
int	seq_write (struct seq_file *seq, const void *data, size_t len)
	EXPORT_SYMBOL (seq_write)
struct list_head *	seq_list_start (struct list_head *head, loff_t pos)
	EXPORT_SYMBOL (seq_list_start)
struct list_head *	seq_list_start_head (struct list_head *head, loff_t pos)
	EXPORT_SYMBOL (seq_list_start_head)
struct list_head *	seq_list_next (void *v, struct list_head *head, loff_t *ppos)
	EXPORT_SYMBOL (seq_list_next)
struct hlist_node *	seq_hlist_start (struct hlist_head *head, loff_t pos)
	EXPORT_SYMBOL (seq_hlist_start)
struct hlist_node *	seq_hlist_start_head (struct hlist_head *head, loff_t pos)
	EXPORT_SYMBOL (seq_hlist_start_head)
struct hlist_node *	seq_hlist_next (void *v, struct hlist_head *head, loff_t *ppos)
	EXPORT_SYMBOL (seq_hlist_next)
struct hlist_node *	seq_hlist_start_rcu (struct hlist_head *head, loff_t pos)
	EXPORT_SYMBOL (seq_hlist_start_rcu)
struct hlist_node *	seq_hlist_start_head_rcu (struct hlist_head *head, loff_t pos)
	EXPORT_SYMBOL (seq_hlist_start_head_rcu)
struct hlist_node *	seq_hlist_next_rcu (void *v, struct hlist_head *head, loff_t *ppos)
	EXPORT_SYMBOL (seq_hlist_next_rcu)

Function Documentation

void* __seq_open_private	(	struct file *	f,
		const struct seq_operations *	ops,
		int	psize
	)

Definition at line 621 of file seq_file.c.

EXPORT_SYMBOL

(

seq_open

)

EXPORT_SYMBOL

(

seq_read

)

EXPORT_SYMBOL

(

seq_lseek

)

EXPORT_SYMBOL

(

seq_release

)

EXPORT_SYMBOL

(

seq_escape

)

EXPORT_SYMBOL

(

seq_vprintf

)

EXPORT_SYMBOL

(

seq_printf

)

EXPORT_SYMBOL

(

mangle_path

)

EXPORT_SYMBOL

(

seq_path

)

EXPORT_SYMBOL

(

seq_bitmap

)

EXPORT_SYMBOL

(

seq_bitmap_list

)

EXPORT_SYMBOL

(

single_open

)

EXPORT_SYMBOL

(

single_release

)

EXPORT_SYMBOL

(

seq_release_private

)

EXPORT_SYMBOL

(

__seq_open_private

)

EXPORT_SYMBOL

(

seq_open_private

)

EXPORT_SYMBOL

(

seq_putc

)

EXPORT_SYMBOL

(

seq_puts

)

EXPORT_SYMBOL

(

seq_put_decimal_ull

)

EXPORT_SYMBOL

(

seq_put_decimal_ll

)

EXPORT_SYMBOL

(

seq_write

)

EXPORT_SYMBOL

(

seq_list_start

)

EXPORT_SYMBOL

(

seq_list_start_head

)

EXPORT_SYMBOL

(

seq_list_next

)

EXPORT_SYMBOL

(

seq_hlist_start

)

EXPORT_SYMBOL

(

seq_hlist_start_head

)

EXPORT_SYMBOL

(

seq_hlist_next

)

EXPORT_SYMBOL

(

seq_hlist_start_rcu

)

EXPORT_SYMBOL

(

seq_hlist_start_head_rcu

)

EXPORT_SYMBOL

(

seq_hlist_next_rcu

)

char* mangle_path	(	char *	s,
		const char *	p,
		const char *	esc
	)

mangle_path - mangle and copy path to buffer beginning : buffer start : beginning of path in above buffer : set of characters that need escaping

Copy the path from @p to @s, replacing each occurrence of character from
@esc with usual octal escape.
Returns pointer past last written character in @s, or NULL in case of
failure.

Definition at line 432 of file seq_file.c.

int seq_bitmap	(	struct seq_file *	m,
		const unsigned long *	bits,
		unsigned int	nr_bits
	)

Definition at line 534 of file seq_file.c.

int seq_bitmap_list	(	struct seq_file *	m,
		const unsigned long *	bits,
		unsigned int	nr_bits
	)

Definition at line 550 of file seq_file.c.

int seq_dentry	(	struct seq_file *	m,
		struct dentry *	dentry,
		const char *	esc
	)

Definition at line 515 of file seq_file.c.

int seq_escape	(	struct seq_file *	m,
		const char *	s,
		const char *	esc
	)

seq_escape - print string into buffer, escaping some characters : target buffer : string : set of characters that need escaping

Puts string into buffer, replacing each occurrence of character from with usual octal escape. Returns 0 in case of success, -1 - in case of overflow.

Definition at line 366 of file seq_file.c.

struct hlist_node* seq_hlist_next ( void *  v, struct hlist_head *  head, loff_t *  ppos  )

read

seq_hlist_next - move to the next position of the hlist : the current iterator : the head of the hlist : the current position

Called at seq_file->op->next().

Definition at line 823 of file seq_file.c.

struct hlist_node* seq_hlist_next_rcu ( void *  v, struct hlist_head *  head, loff_t *  ppos  )

read

seq_hlist_next_rcu - move to the next position of the hlist protected by RCU : the current iterator : the head of the hlist : the current position

Called at seq_file->op->next().

This list-traversal primitive may safely run concurrently with the _rcu list-mutation primitives such as hlist_add_head_rcu() as long as the traversal is guarded by rcu_read_lock().

Definition at line 893 of file seq_file.c.

struct hlist_node* seq_hlist_start ( struct hlist_head *  head, loff_t  pos  )

read

seq_hlist_start - start an iteration of a hlist : the head of the hlist : the start position of the sequence

Called at seq_file->op->start().

Definition at line 787 of file seq_file.c.

struct hlist_node* seq_hlist_start_head ( struct hlist_head *  head, loff_t  pos  )

read

seq_hlist_start_head - start an iteration of a hlist : the head of the hlist : the start position of the sequence

Called at seq_file->op->start(). Call this function if you want to print a header at the top of the output.

Definition at line 806 of file seq_file.c.

struct hlist_node* seq_hlist_start_head_rcu ( struct hlist_head *  head, loff_t  pos  )

read

seq_hlist_start_head_rcu - start an iteration of a hlist protected by RCU : the head of the hlist : the start position of the sequence

Called at seq_file->op->start(). Call this function if you want to print a header at the top of the output.

This list-traversal primitive may safely run concurrently with the _rcu list-mutation primitives such as hlist_add_head_rcu() as long as the traversal is guarded by rcu_read_lock().

Definition at line 871 of file seq_file.c.

struct hlist_node* seq_hlist_start_rcu ( struct hlist_head *  head, loff_t  pos  )

read

seq_hlist_start_rcu - start an iteration of a hlist protected by RCU : the head of the hlist : the start position of the sequence

Called at seq_file->op->start().

This list-traversal primitive may safely run concurrently with the _rcu list-mutation primitives such as hlist_add_head_rcu() as long as the traversal is guarded by rcu_read_lock().

Definition at line 847 of file seq_file.c.

struct list_head* seq_list_next ( void *  v, struct list_head *  head, loff_t *  ppos  )

read

Definition at line 770 of file seq_file.c.

struct list_head* seq_list_start ( struct list_head *  head, loff_t  pos  )

read

Definition at line 749 of file seq_file.c.

struct list_head* seq_list_start_head ( struct list_head *  head, loff_t  pos  )

read

Definition at line 761 of file seq_file.c.

loff_t seq_lseek	(	struct file *	file,
		loff_t	offset,
		int	origin
	)

Definition at line 303 of file seq_file.c.

int seq_open	(	struct file *	file,
		const struct seq_operations *	op
	)

Definition at line 47 of file seq_file.c.

int seq_open_private	(	struct file *	filp,
		const struct seq_operations *	ops,
		int	psize
	)

Definition at line 647 of file seq_file.c.

int seq_path	(	struct seq_file *	m,
		const struct path *	path,
		const char *	esc
	)

seq_path - seq_file interface to print a pathname : the seq_file handle : the struct path to print : set of characters to escape in the output

return the absolute path of 'path', as represented by the dentry / mnt pair in the path parameter.

Definition at line 462 of file seq_file.c.

int seq_path_root	(	struct seq_file *	m,
		const struct path *	path,
		const struct path *	root,
		const char *	esc
	)

Definition at line 485 of file seq_file.c.

int seq_printf	(	struct seq_file *	m,
		const char *	f,
			...
	)

Definition at line 408 of file seq_file.c.

int seq_put_decimal_ll	(	struct seq_file *	m,
		char	delimiter,
		long long	num
	)

Definition at line 711 of file seq_file.c.

int seq_put_decimal_ull	(	struct seq_file *	m,
		char	delimiter,
		unsigned long long	num
	)

Definition at line 684 of file seq_file.c.

int seq_putc	(	struct seq_file *	m,
		char	c
	)

Definition at line 654 of file seq_file.c.

int seq_puts	(	struct seq_file *	m,
		const char *	s
	)

Definition at line 664 of file seq_file.c.

ssize_t seq_read	(	struct file *	file,
		char __user *	buf,
		size_t	size,
		loff_t *	ppos
	)

Definition at line 152 of file seq_file.c.

int seq_release	(	struct inode *	inode,
		struct file *	file
	)

Definition at line 347 of file seq_file.c.

int seq_release_private	(	struct inode *	inode,
		struct file *	file
	)

Definition at line 611 of file seq_file.c.

int seq_vprintf	(	struct seq_file *	m,
		const char *	f,
		va_list	args
	)

Definition at line 392 of file seq_file.c.

int seq_write	(	struct seq_file *	seq,
		const void *	data,
		size_t	len
	)

seq_write - write arbitrary data to buffer : seq_file identifying the buffer to which data should be written : data address : number of bytes

Return 0 on success, non-zero otherwise.

Definition at line 737 of file seq_file.c.

int single_open	(	struct file *	file,
		int(*)(struct seq_file *, void *)	show,
		void *	data
	)

Definition at line 581 of file seq_file.c.

int single_release	(	struct inode *	inode,
		struct file *	file
	)

Definition at line 602 of file seq_file.c.