linux/fs/nilfs2/namei.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * NILFS pathname lookup operations.
 *
 * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
 *
 * Modified for NILFS by Amagai Yoshiji and Ryusuke Konishi.
 */
/*
 *  linux/fs/ext2/namei.c
 *
 * Copyright (C) 1992, 1993, 1994, 1995
 * Remy Card ([email protected])
 * Laboratoire MASI - Institut Blaise Pascal
 * Universite Pierre et Marie Curie (Paris VI)
 *
 *  from
 *
 *  linux/fs/minix/namei.c
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 *
 *  Big-endian to little-endian byte-swapping/bitmaps by
 *        David S. Miller ([email protected]), 1995
 */

#include <linux/pagemap.h>
#include "nilfs.h"
#include "export.h"

#define NILFS_FID_SIZE_NON_CONNECTABLE …
#define NILFS_FID_SIZE_CONNECTABLE …

static inline int nilfs_add_nondir(struct dentry *dentry, struct inode *inode)
{ … }

/*
 * Methods themselves.
 */

static struct dentry *
nilfs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{ … }

/*
 * By the time this is called, we already have created
 * the directory cache entry for the new file, but it
 * is so far negative - it has no inode.
 *
 * If the create succeeds, we fill in the inode information
 * with d_instantiate().
 */
static int nilfs_create(struct mnt_idmap *idmap, struct inode *dir,
			struct dentry *dentry, umode_t mode, bool excl)
{ … }

static int
nilfs_mknod(struct mnt_idmap *idmap, struct inode *dir,
	    struct dentry *dentry, umode_t mode, dev_t rdev)
{ … }

static int nilfs_symlink(struct mnt_idmap *idmap, struct inode *dir,
			 struct dentry *dentry, const char *symname)
{ … }

static int nilfs_link(struct dentry *old_dentry, struct inode *dir,
		      struct dentry *dentry)
{ … }

static int nilfs_mkdir(struct mnt_idmap *idmap, struct inode *dir,
		       struct dentry *dentry, umode_t mode)
{ … }

static int nilfs_do_unlink(struct inode *dir, struct dentry *dentry)
{ … }

static int nilfs_unlink(struct inode *dir, struct dentry *dentry)
{ … }

static int nilfs_rmdir(struct inode *dir, struct dentry *dentry)
{ … }

static int nilfs_rename(struct mnt_idmap *idmap,
			struct inode *old_dir, struct dentry *old_dentry,
			struct inode *new_dir, struct dentry *new_dentry,
			unsigned int flags)
{ … }

/*
 * Export operations
 */
static struct dentry *nilfs_get_parent(struct dentry *child)
{ … }

static struct dentry *nilfs_get_dentry(struct super_block *sb, u64 cno,
				       u64 ino, u32 gen)
{ … }

static struct dentry *nilfs_fh_to_dentry(struct super_block *sb, struct fid *fh,
					 int fh_len, int fh_type)
{ … }

static struct dentry *nilfs_fh_to_parent(struct super_block *sb, struct fid *fh,
					 int fh_len, int fh_type)
{ … }

static int nilfs_encode_fh(struct inode *inode, __u32 *fh, int *lenp,
			   struct inode *parent)
{ … }

const struct inode_operations nilfs_dir_inode_operations = …;

const struct inode_operations nilfs_special_inode_operations = …;

const struct inode_operations nilfs_symlink_inode_operations = …;

const struct export_operations nilfs_export_ops = …;