mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-03 04:06:43 +07:00
85420ccad1
gcc-4.3: fs/freevxfs/vxfs_lookup.c: In function 'vxfs_find_entry': fs/freevxfs/vxfs_lookup.c:139: warning: cast from pointer to integer of different size fs/freevxfs/vxfs_lookup.c: In function 'vxfs_readdir': fs/freevxfs/vxfs_lookup.c:294: warning: cast from pointer to integer of different size Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
93 lines
3.1 KiB
C
93 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2000-2001 Christoph Hellwig.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification.
|
|
* 2. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL").
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
#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 managment 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 {
|
|
u_int16_t d_free; /* free space in dirblock */
|
|
u_int16_t d_nhash; /* no of hash chains */
|
|
u_int16_t d_hash[1]; /* hash chain */
|
|
};
|
|
|
|
/*
|
|
* VXFS_NAMELEN is the maximum length of the d_name field
|
|
* of an VxFS directory entry.
|
|
*/
|
|
#define VXFS_NAMELEN 256
|
|
|
|
/*
|
|
* VxFS directory entry.
|
|
*/
|
|
struct vxfs_direct {
|
|
vx_ino_t d_ino; /* inode number */
|
|
u_int16_t d_reclen; /* record length */
|
|
u_int16_t d_namelen; /* d_name length */
|
|
u_int16_t d_hashnext; /* next hash entry */
|
|
char d_name[VXFS_NAMELEN]; /* name */
|
|
};
|
|
|
|
/*
|
|
* 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 4
|
|
#define VXFS_NAMEMIN offsetof(struct vxfs_direct, d_name)
|
|
#define VXFS_DIRROUND(len) ((VXFS_DIRPAD + (len) - 1) & ~(VXFS_DIRPAD -1))
|
|
#define VXFS_DIRLEN(len) (VXFS_DIRROUND(VXFS_NAMEMIN + (len)))
|
|
|
|
/*
|
|
* VXFS_DIRBLKOV is the overhead of a specific dirblock.
|
|
*/
|
|
#define VXFS_DIRBLKOV(dbp) ((sizeof(short) * dbp->d_nhash) + 4)
|
|
|
|
#endif /* _VXFS_DIR_H_ */
|