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Diffstat (limited to 'fs/xfs/xfs_dir2_sf.h')
| -rw-r--r-- | fs/xfs/xfs_dir2_sf.h | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/fs/xfs/xfs_dir2_sf.h b/fs/xfs/xfs_dir2_sf.h deleted file mode 100644 index bac6f5a2a31..00000000000 --- a/fs/xfs/xfs_dir2_sf.h +++ /dev/null @@ -1,243 +0,0 @@ -/* - * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - * Further, this software is distributed without any warranty that it is - * free of the rightful claim of any third person regarding infringement - * or the like. Any license provided herein, whether implied or - * otherwise, applies only to this software file. Patent licenses, if - * any, provided herein do not apply to combinations of this program with - * other software, or any other product whatsoever. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write the Free Software Foundation, Inc., 59 - * Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, - * Mountain View, CA 94043, or: - * - * http://www.sgi.com - * - * For further information regarding this notice, see: - * - * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ - */ -#ifndef __XFS_DIR2_SF_H__ -#define __XFS_DIR2_SF_H__ - -/* - * Directory layout when stored internal to an inode. - * - * Small directories are packed as tightly as possible so as to - * fit into the literal area of the inode. - */ - -struct uio; -struct xfs_dabuf; -struct xfs_da_args; -struct xfs_dir2_block; -struct xfs_inode; -struct xfs_mount; -struct xfs_trans; - -/* - * Maximum size of a shortform directory. - */ -#define XFS_DIR2_SF_MAX_SIZE \ - (XFS_DINODE_MAX_SIZE - (uint)sizeof(xfs_dinode_core_t) - \ - (uint)sizeof(xfs_agino_t)) - -/* - * Inode number stored as 8 8-bit values. - */ -typedef struct { __uint8_t i[8]; } xfs_dir2_ino8_t; - -/* - * Inode number stored as 4 8-bit values. - * Works a lot of the time, when all the inode numbers in a directory - * fit in 32 bits. - */ -typedef struct { __uint8_t i[4]; } xfs_dir2_ino4_t; - -typedef union { - xfs_dir2_ino8_t i8; - xfs_dir2_ino4_t i4; -} xfs_dir2_inou_t; -#define XFS_DIR2_MAX_SHORT_INUM ((xfs_ino_t)0xffffffffULL) - -/* - * Normalized offset (in a data block) of the entry, really xfs_dir2_data_off_t. - * Only need 16 bits, this is the byte offset into the single block form. - */ -typedef struct { __uint8_t i[2]; } xfs_dir2_sf_off_t; - -/* - * The parent directory has a dedicated field, and the self-pointer must - * be calculated on the fly. - * - * Entries are packed toward the top as tightly as possible. The header - * and the elements must be memcpy'd out into a work area to get correct - * alignment for the inode number fields. - */ -typedef struct xfs_dir2_sf_hdr { - __uint8_t count; /* count of entries */ - __uint8_t i8count; /* count of 8-byte inode #s */ - xfs_dir2_inou_t parent; /* parent dir inode number */ -} xfs_dir2_sf_hdr_t; - -typedef struct xfs_dir2_sf_entry { - __uint8_t namelen; /* actual name length */ - xfs_dir2_sf_off_t offset; /* saved offset */ - __uint8_t name[1]; /* name, variable size */ - xfs_dir2_inou_t inumber; /* inode number, var. offset */ -} xfs_dir2_sf_entry_t; - -typedef struct xfs_dir2_sf { - xfs_dir2_sf_hdr_t hdr; /* shortform header */ - xfs_dir2_sf_entry_t list[1]; /* shortform entries */ -} xfs_dir2_sf_t; - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_HDR_SIZE) -int xfs_dir2_sf_hdr_size(int i8count); -#define XFS_DIR2_SF_HDR_SIZE(i8count) xfs_dir2_sf_hdr_size(i8count) -#else -#define XFS_DIR2_SF_HDR_SIZE(i8count) \ - ((uint)sizeof(xfs_dir2_sf_hdr_t) - \ - ((i8count) == 0) * \ - ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t))) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_INUMBERP) -xfs_dir2_inou_t *xfs_dir2_sf_inumberp(xfs_dir2_sf_entry_t *sfep); -#define XFS_DIR2_SF_INUMBERP(sfep) xfs_dir2_sf_inumberp(sfep) -#else -#define XFS_DIR2_SF_INUMBERP(sfep) \ - ((xfs_dir2_inou_t *)&(sfep)->name[(sfep)->namelen]) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_GET_INUMBER) -xfs_intino_t xfs_dir2_sf_get_inumber(xfs_dir2_sf_t *sfp, xfs_dir2_inou_t *from); -#define XFS_DIR2_SF_GET_INUMBER(sfp, from) \ - xfs_dir2_sf_get_inumber(sfp, from) - -#else -#define XFS_DIR2_SF_GET_INUMBER(sfp, from) \ - ((sfp)->hdr.i8count == 0 ? \ - (xfs_intino_t)XFS_GET_DIR_INO4((from)->i4) : \ - (xfs_intino_t)XFS_GET_DIR_INO8((from)->i8)) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_PUT_INUMBER) -void xfs_dir2_sf_put_inumber(xfs_dir2_sf_t *sfp, xfs_ino_t *from, - xfs_dir2_inou_t *to); -#define XFS_DIR2_SF_PUT_INUMBER(sfp,from,to) \ - xfs_dir2_sf_put_inumber(sfp,from,to) -#else -#define XFS_DIR2_SF_PUT_INUMBER(sfp,from,to) \ - if ((sfp)->hdr.i8count == 0) { \ - XFS_PUT_DIR_INO4(*(from), (to)->i4); \ - } else { \ - XFS_PUT_DIR_INO8(*(from), (to)->i8); \ - } -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_GET_OFFSET) -xfs_dir2_data_aoff_t xfs_dir2_sf_get_offset(xfs_dir2_sf_entry_t *sfep); -#define XFS_DIR2_SF_GET_OFFSET(sfep) \ - xfs_dir2_sf_get_offset(sfep) -#else -#define XFS_DIR2_SF_GET_OFFSET(sfep) \ - INT_GET_UNALIGNED_16_BE(&(sfep)->offset.i) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_PUT_OFFSET) -void xfs_dir2_sf_put_offset(xfs_dir2_sf_entry_t *sfep, - xfs_dir2_data_aoff_t off); -#define XFS_DIR2_SF_PUT_OFFSET(sfep,off) \ - xfs_dir2_sf_put_offset(sfep,off) -#else -#define XFS_DIR2_SF_PUT_OFFSET(sfep,off) \ - INT_SET_UNALIGNED_16_BE(&(sfep)->offset.i,off) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_ENTSIZE_BYNAME) -int xfs_dir2_sf_entsize_byname(xfs_dir2_sf_t *sfp, int len); -#define XFS_DIR2_SF_ENTSIZE_BYNAME(sfp,len) \ - xfs_dir2_sf_entsize_byname(sfp,len) -#else -#define XFS_DIR2_SF_ENTSIZE_BYNAME(sfp,len) /* space a name uses */ \ - ((uint)sizeof(xfs_dir2_sf_entry_t) - 1 + (len) - \ - ((sfp)->hdr.i8count == 0) * \ - ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t))) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_ENTSIZE_BYENTRY) -int xfs_dir2_sf_entsize_byentry(xfs_dir2_sf_t *sfp, xfs_dir2_sf_entry_t *sfep); -#define XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp,sfep) \ - xfs_dir2_sf_entsize_byentry(sfp,sfep) -#else -#define XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp,sfep) /* space an entry uses */ \ - ((uint)sizeof(xfs_dir2_sf_entry_t) - 1 + (sfep)->namelen - \ - ((sfp)->hdr.i8count == 0) * \ - ((uint)sizeof(xfs_dir2_ino8_t) - (uint)sizeof(xfs_dir2_ino4_t))) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_FIRSTENTRY) -xfs_dir2_sf_entry_t *xfs_dir2_sf_firstentry(xfs_dir2_sf_t *sfp); -#define XFS_DIR2_SF_FIRSTENTRY(sfp) xfs_dir2_sf_firstentry(sfp) -#else -#define XFS_DIR2_SF_FIRSTENTRY(sfp) /* first entry in struct */ \ - ((xfs_dir2_sf_entry_t *) \ - ((char *)(sfp) + XFS_DIR2_SF_HDR_SIZE(sfp->hdr.i8count))) -#endif - -#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_SF_NEXTENTRY) -xfs_dir2_sf_entry_t *xfs_dir2_sf_nextentry(xfs_dir2_sf_t *sfp, - xfs_dir2_sf_entry_t *sfep); -#define XFS_DIR2_SF_NEXTENTRY(sfp,sfep) xfs_dir2_sf_nextentry(sfp,sfep) -#else -#define XFS_DIR2_SF_NEXTENTRY(sfp,sfep) /* next entry in struct */ \ - ((xfs_dir2_sf_entry_t *) \ - ((char *)(sfep) + XFS_DIR2_SF_ENTSIZE_BYENTRY(sfp,sfep))) -#endif - -/* - * Functions. - */ - -extern int - xfs_dir2_block_sfsize(struct xfs_inode *dp, - struct xfs_dir2_block *block, - xfs_dir2_sf_hdr_t *sfhp); - -extern int - xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_dabuf *bp, - int size, xfs_dir2_sf_hdr_t *sfhp); - -extern int - xfs_dir2_sf_addname(struct xfs_da_args *args); - -extern int - xfs_dir2_sf_create(struct xfs_da_args *args, xfs_ino_t pino); - -extern int - xfs_dir2_sf_getdents(struct xfs_inode *dp, struct uio *uio, int *eofp, - struct xfs_dirent *dbp, xfs_dir2_put_t put); - -extern int - xfs_dir2_sf_lookup(struct xfs_da_args *args); - -extern int - xfs_dir2_sf_removename(struct xfs_da_args *args); - -extern int - xfs_dir2_sf_replace(struct xfs_da_args *args); - -#endif /* __XFS_DIR2_SF_H__ */ |