linux/fs/afs/xdr_fs.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/* AFS fileserver XDR types
 *
 * Copyright (C) 2018 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells ([email protected])
 */

#ifndef XDR_FS_H
#define XDR_FS_H

struct afs_xdr_AFSFetchStatus { … } __packed;

#define AFS_DIR_HASHTBL_SIZE …
#define AFS_DIR_DIRENT_SIZE …
#define AFS_DIR_SLOTS_PER_BLOCK …
#define AFS_DIR_BLOCK_SIZE …
#define AFS_DIR_BLOCKS_PER_PAGE …
#define AFS_DIR_MAX_SLOTS …
#define AFS_DIR_BLOCKS_WITH_CTR …
#define AFS_DIR_MAX_BLOCKS …
#define AFS_DIR_RESV_BLOCKS …
#define AFS_DIR_RESV_BLOCKS0 …

/*
 * Directory entry structure.
 */
afs_xdr_dirent __packed;

/*
 * Directory block header (one at the beginning of every 2048-byte block).
 */
struct afs_xdr_dir_hdr { … } __packed;

/*
 * Directory block layout
 */
afs_xdr_dir_block __packed;

/*
 * Directory layout on a linux VM page.
 */
struct afs_xdr_dir_page { … };

/*
 * Calculate the number of dirent slots required for any given name length.
 * The calculation is made assuming the part of the name in the first slot is
 * 16 bytes, rather than 20, but this miscalculation is now standardised.
 */
static inline unsigned int afs_dir_calc_slots(size_t name_len)
{ … }

#endif /* XDR_FS_H */