linux/fs/freevxfs/vxfs_dir.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 */
#ifndef _VXFS_DIR_H_
#define _VXFS_DIR_H_

/*
 * Veritas filesystem driver - directory structure.
 *
 * This file contains the definition of the vxfs directory format.
 */


/*
 * VxFS directory block header.
 *
 * This entry is the head of every filesystem block in a directory.
 * It is used for free space management and additionally includes
 * a hash for speeding up directory search (lookup).
 *
 * The hash may be empty and in fact we do not use it all in the
 * Linux driver for now.
 */
struct vxfs_dirblk { … };

/*
 * VXFS_NAMELEN is the maximum length of the d_name field
 *	of an VxFS directory entry.
 */
#define VXFS_NAMELEN …

/*
 * VxFS directory entry.
 */
struct vxfs_direct { … };

/*
 * VXFS_DIRPAD defines the directory entry boundaries, is _must_ be
 *	a multiple of four.
 * VXFS_NAMEMIN is the length of a directory entry with a NULL d_name.
 * VXFS_DIRROUND is an internal macros that rounds a length to a value
 *	usable for directory sizes.
 * VXFS_DIRLEN calculates the directory entry size for an entry with
 *	a d_name with size len.
 */
#define VXFS_DIRPAD …
#define VXFS_NAMEMIN …
#define VXFS_DIRROUND(len) …
#define VXFS_DIRLEN(len) …

/*
 * VXFS_DIRBLKOV is the overhead of a specific dirblock.
 */
#define VXFS_DIRBLKOV(sbi, dbp) …

#endif /* _VXFS_DIR_H_ */