namei.c File Reference

#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/jbd2.h>
#include <linux/time.h>
#include <linux/fcntl.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/bio.h>
#include "ext4.h"
#include "ext4_jbd2.h"
#include "xattr.h"
#include "acl.h"
#include <trace/events/ext4.h>

Go to the source code of this file.

Data Structures
struct	fake_dirent
struct	dx_countlimit
struct	dx_entry
struct	dx_root
struct	dx_root::dx_root_info
struct	dx_node
struct	dx_frame
struct	dx_map_entry
struct	dx_tail

Macros
#define	NAMEI_RA_CHUNKS   2
#define	NAMEI_RA_BLOCKS   4
#define	NAMEI_RA_SIZE   (NAMEI_RA_CHUNKS * NAMEI_RA_BLOCKS)
#define	NAMEI_RA_INDEX(c, b)   (((c) * NAMEI_RA_BLOCKS) + (b))
#define	assert(test)   J_ASSERT(test)
#define	dxtrace(command)
#define	EXT4_DIRENT_TAIL(block, blocksize)
#define	S_SHIFT   12
#define	PARENT_INO(buffer, size)   (ext4_next_entry((struct ext4_dir_entry_2 *)(buffer), size)->inode)

Functions
int	ext4_dirent_csum_verify (struct inode *inode, struct ext4_dir_entry *dirent)
int	ext4_htree_fill_tree (struct file *dir_file, __u32 start_hash, __u32 start_minor_hash, __u32 *next_hash)
struct dentry *	ext4_get_parent (struct dentry *child)
int	ext4_orphan_add (handle_t *handle, struct inode *inode)
int	ext4_orphan_del (handle_t *handle, struct inode *inode)

Variables
struct inode_operations	ext4_dir_inode_operations
struct inode_operations	ext4_special_inode_operations

Macro Definition Documentation

#define assert

(

test

)

J_ASSERT(test)

Definition at line 87 of file namei.c.

#define dxtrace

(

command

)

Definition at line 93 of file namei.c.

#define EXT4_DIRENT_TAIL	(		block,
			blocksize
	)

Value:

((struct ext4_dir_entry_tail *)(((void *)(block)) + \
                    ((blocksize) - \
                     sizeof(struct ext4_dir_entry_tail))))

Definition at line 205 of file namei.c.

#define NAMEI_RA_BLOCKS   4

Definition at line 48 of file namei.c.

#define NAMEI_RA_CHUNKS   2

Definition at line 47 of file namei.c.

#define NAMEI_RA_INDEX	(		c,
			b
	)		(((c) * NAMEI_RA_BLOCKS) + (b))

Definition at line 50 of file namei.c.

#define NAMEI_RA_SIZE   (NAMEI_RA_CHUNKS * NAMEI_RA_BLOCKS)

Definition at line 49 of file namei.c.

#define PARENT_INO	(		buffer,
			size
	)		(ext4_next_entry((struct ext4_dir_entry_2 *)(buffer), size)->inode)

Definition at line 2829 of file namei.c.

#define S_SHIFT   12

Definition at line 1413 of file namei.c.

Function Documentation

int ext4_dirent_csum_verify	(	struct inode *	inode,
		struct ext4_dir_entry *	dirent
	)

Definition at line 264 of file namei.c.

struct dentry* ext4_get_parent ( struct dentry *  child )

read

Definition at line 1391 of file namei.c.

int ext4_htree_fill_tree	(	struct file *	dir_file,
		__u32	start_hash,
		__u32	start_minor_hash,
		__u32 *	next_hash
	)

Definition at line 928 of file namei.c.

int ext4_orphan_add	(	handle_t *	handle,
		struct inode *	inode
	)

Definition at line 2421 of file namei.c.

int ext4_orphan_del	(	handle_t *	handle,
		struct inode *	inode
	)

Definition at line 2492 of file namei.c.

Variable Documentation

struct inode_operations ext4_dir_inode_operations

Initial value:

= {
    .create     = ext4_create,
    .lookup     = ext4_lookup,
    .link       = ext4_link,
    .unlink     = ext4_unlink,
    .symlink    = ext4_symlink,
    .mkdir      = ext4_mkdir,
    .rmdir      = ext4_rmdir,
    .mknod      = ext4_mknod,
    .rename     = ext4_rename,
    .setattr    = ext4_setattr,






    .get_acl    = ext4_get_acl,
    .fiemap         = ext4_fiemap,
}

Definition at line 3035 of file namei.c.

struct inode_operations ext4_special_inode_operations

Initial value:

= {
    .setattr    = ext4_setattr,






    .get_acl    = ext4_get_acl,
}

Definition at line 3056 of file namei.c.