linux/fs/bfs/dir.c

// SPDX-License-Identifier: GPL-2.0
/*
 *	fs/bfs/dir.c
 *	BFS directory operations.
 *	Copyright (C) 1999-2018  Tigran Aivazian <[email protected]>
 *  Made endianness-clean by Andrew Stribblehill <[email protected]> 2005
 */

#include <linux/time.h>
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/sched.h>
#include "bfs.h"

#undef DEBUG

#ifdef DEBUG
#define dprintf …
#else
#define dprintf(x...) …
#endif

static int bfs_add_entry(struct inode *dir, const struct qstr *child, int ino);
static struct buffer_head *bfs_find_entry(struct inode *dir,
				const struct qstr *child,
				struct bfs_dirent **res_dir);

static int bfs_readdir(struct file *f, struct dir_context *ctx)
{ … }

const struct file_operations bfs_dir_operations = …;

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

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

static int bfs_link(struct dentry *old, struct inode *dir,
						struct dentry *new)
{ … }

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

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

const struct inode_operations bfs_dir_inops = …;

static int bfs_add_entry(struct inode *dir, const struct qstr *child, int ino)
{ … }

static inline int bfs_namecmp(int len, const unsigned char *name,
							const char *buffer)
{ … }

static struct buffer_head *bfs_find_entry(struct inode *dir,
			const struct qstr *child,
			struct bfs_dirent **res_dir)
{ … }