/*
- * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000,2005 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
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms 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.
+ * 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. See the
+ * GNU General Public License for more details.
*
- * 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/
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __XFS_DIR2_NODE_H__
#define __XFS_DIR2_NODE_H__
struct xfs_inode;
struct xfs_trans;
-/*
- * Constants.
- */
-
/*
* Offset of the freespace index.
*/
#define XFS_DIR2_FREE_MAGIC 0x58443246 /* XD2F */
-/*
- * Structures.
- */
typedef struct xfs_dir2_free_hdr {
- __uint32_t magic; /* XFS_DIR2_FREE_MAGIC */
- __int32_t firstdb; /* db of first entry */
- __int32_t nvalid; /* count of valid entries */
- __int32_t nused; /* count of used entries */
+ __be32 magic; /* XFS_DIR2_FREE_MAGIC */
+ __be32 firstdb; /* db of first entry */
+ __be32 nvalid; /* count of valid entries */
+ __be32 nused; /* count of used entries */
} xfs_dir2_free_hdr_t;
typedef struct xfs_dir2_free {
xfs_dir2_free_hdr_t hdr; /* block header */
- xfs_dir2_data_off_t bests[1]; /* best free counts */
+ __be16 bests[1]; /* best free counts */
/* unused entries are -1 */
} xfs_dir2_free_t;
+
#define XFS_DIR2_MAX_FREE_BESTS(mp) \
(((mp)->m_dirblksize - (uint)sizeof(xfs_dir2_free_hdr_t)) / \
(uint)sizeof(xfs_dir2_data_off_t))
-/*
- * Macros.
- */
-
/*
* Convert data space db to the corresponding free db.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_TO_FDB)
-xfs_dir2_db_t
-xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db);
#define XFS_DIR2_DB_TO_FDB(mp,db) xfs_dir2_db_to_fdb(mp, db)
-#else
-#define XFS_DIR2_DB_TO_FDB(mp,db) \
- (XFS_DIR2_FREE_FIRSTDB(mp) + (db) / XFS_DIR2_MAX_FREE_BESTS(mp))
-#endif
+static inline xfs_dir2_db_t
+xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+ return (XFS_DIR2_FREE_FIRSTDB(mp) + (db) / XFS_DIR2_MAX_FREE_BESTS(mp));
+}
/*
* Convert data space db to the corresponding index in a free db.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_TO_FDINDEX)
-int
-xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db);
#define XFS_DIR2_DB_TO_FDINDEX(mp,db) xfs_dir2_db_to_fdindex(mp, db)
-#else
-#define XFS_DIR2_DB_TO_FDINDEX(mp,db) ((db) % XFS_DIR2_MAX_FREE_BESTS(mp))
-#endif
-
-/*
- * Functions.
- */
-
-extern void
- xfs_dir2_free_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
- int first, int last);
-
-extern int
- xfs_dir2_leaf_to_node(struct xfs_da_args *args, struct xfs_dabuf *lbp);
-
-extern xfs_dahash_t
- xfs_dir2_leafn_lasthash(struct xfs_dabuf *bp, int *count);
-
-extern int
- xfs_dir2_leafn_lookup_int(struct xfs_dabuf *bp,
- struct xfs_da_args *args, int *indexp,
- struct xfs_da_state *state);
-
-extern int
- xfs_dir2_leafn_order(struct xfs_dabuf *leaf1_bp,
- struct xfs_dabuf *leaf2_bp);
-
-extern int
- xfs_dir2_leafn_split(struct xfs_da_state *state,
- struct xfs_da_state_blk *oldblk,
- struct xfs_da_state_blk *newblk);
-
-extern int
- xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
-
-extern void
- xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
- struct xfs_da_state_blk *drop_blk,
- struct xfs_da_state_blk *save_blk);
-
-extern int
- xfs_dir2_node_addname(struct xfs_da_args *args);
-
-extern int
- xfs_dir2_node_lookup(struct xfs_da_args *args);
-
-extern int
- xfs_dir2_node_removename(struct xfs_da_args *args);
-
-extern int
- xfs_dir2_node_replace(struct xfs_da_args *args);
-
-extern int
- xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
- int *rvalp);
+static inline int
+xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+ return ((db) % XFS_DIR2_MAX_FREE_BESTS(mp));
+}
+
+extern void xfs_dir2_free_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
+ int first, int last);
+extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
+ struct xfs_dabuf *lbp);
+extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_dabuf *bp, int *count);
+extern int xfs_dir2_leafn_lookup_int(struct xfs_dabuf *bp,
+ struct xfs_da_args *args, int *indexp,
+ struct xfs_da_state *state);
+extern int xfs_dir2_leafn_order(struct xfs_dabuf *leaf1_bp,
+ struct xfs_dabuf *leaf2_bp);
+extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
+ struct xfs_da_state_blk *oldblk,
+ struct xfs_da_state_blk *newblk);
+extern int xfs_dir2_leafn_toosmall(struct xfs_da_state *state, int *action);
+extern void xfs_dir2_leafn_unbalance(struct xfs_da_state *state,
+ struct xfs_da_state_blk *drop_blk,
+ struct xfs_da_state_blk *save_blk);
+extern int xfs_dir2_node_addname(struct xfs_da_args *args);
+extern int xfs_dir2_node_lookup(struct xfs_da_args *args);
+extern int xfs_dir2_node_removename(struct xfs_da_args *args);
+extern int xfs_dir2_node_replace(struct xfs_da_args *args);
+extern int xfs_dir2_node_trim_free(struct xfs_da_args *args, xfs_fileoff_t fo,
+ int *rvalp);
#endif /* __XFS_DIR2_NODE_H__ */
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