/*
- * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2001,2005 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_LEAF_H__
#define __XFS_DIR2_LEAF_H__
-/*
- * Directory version 2, leaf block structures.
- */
-
struct uio;
struct xfs_dabuf;
struct xfs_da_args;
struct xfs_mount;
struct xfs_trans;
-/*
- * Constants.
- */
-
/*
* Offset of the leaf/node space. First block in this space
* is the btree root.
#define XFS_DIR2_LEAF_FIRSTDB(mp) \
XFS_DIR2_BYTE_TO_DB(mp, XFS_DIR2_LEAF_OFFSET)
-/*
- * Types.
- */
-
/*
* Offset in data space of a data entry.
*/
#define XFS_DIR2_MAX_DATAPTR ((xfs_dir2_dataptr_t)0xffffffff)
#define XFS_DIR2_NULL_DATAPTR ((xfs_dir2_dataptr_t)0)
-/*
- * Structures.
- */
-
/*
* Leaf block header.
*/
typedef struct xfs_dir2_leaf_hdr {
xfs_da_blkinfo_t info; /* header for da routines */
- __uint16_t count; /* count of entries */
- __uint16_t stale; /* count of stale entries */
+ __be16 count; /* count of entries */
+ __be16 stale; /* count of stale entries */
} xfs_dir2_leaf_hdr_t;
/*
* Leaf block entry.
*/
typedef struct xfs_dir2_leaf_entry {
- xfs_dahash_t hashval; /* hash value of name */
- xfs_dir2_dataptr_t address; /* address of data entry */
+ __be32 hashval; /* hash value of name */
+ __be32 address; /* address of data entry */
} xfs_dir2_leaf_entry_t;
/*
* Leaf block tail.
*/
typedef struct xfs_dir2_leaf_tail {
- __uint32_t bestcount;
+ __be32 bestcount;
} xfs_dir2_leaf_tail_t;
/*
} xfs_dir2_leaf_t;
/*
- * Macros.
- * The DB blocks are logical directory block numbers, not filesystem blocks.
+ * DB blocks here are logical directory block numbers, not filesystem blocks.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_MAX_LEAF_ENTS)
-int
-xfs_dir2_max_leaf_ents(struct xfs_mount *mp);
-#define XFS_DIR2_MAX_LEAF_ENTS(mp) \
- xfs_dir2_max_leaf_ents(mp)
-#else
-#define XFS_DIR2_MAX_LEAF_ENTS(mp) \
- ((int)(((mp)->m_dirblksize - (uint)sizeof(xfs_dir2_leaf_hdr_t)) / \
- (uint)sizeof(xfs_dir2_leaf_entry_t)))
-#endif
+#define XFS_DIR2_MAX_LEAF_ENTS(mp) xfs_dir2_max_leaf_ents(mp)
+static inline int xfs_dir2_max_leaf_ents(struct xfs_mount *mp)
+{
+ return (int)(((mp)->m_dirblksize - (uint)sizeof(xfs_dir2_leaf_hdr_t)) /
+ (uint)sizeof(xfs_dir2_leaf_entry_t));
+}
/*
* Get address of the bestcount field in the single-leaf block.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_LEAF_TAIL_P)
-xfs_dir2_leaf_tail_t *
-xfs_dir2_leaf_tail_p(struct xfs_mount *mp, xfs_dir2_leaf_t *lp);
-#define XFS_DIR2_LEAF_TAIL_P(mp,lp) \
- xfs_dir2_leaf_tail_p(mp, lp)
-#else
-#define XFS_DIR2_LEAF_TAIL_P(mp,lp) \
- ((xfs_dir2_leaf_tail_t *)\
- ((char *)(lp) + (mp)->m_dirblksize - \
- (uint)sizeof(xfs_dir2_leaf_tail_t)))
-#endif
+#define XFS_DIR2_LEAF_TAIL_P(mp,lp) xfs_dir2_leaf_tail_p(mp, lp)
+static inline xfs_dir2_leaf_tail_t *
+xfs_dir2_leaf_tail_p(struct xfs_mount *mp, xfs_dir2_leaf_t *lp)
+{
+ return (xfs_dir2_leaf_tail_t *)
+ ((char *)(lp) + (mp)->m_dirblksize -
+ (uint)sizeof(xfs_dir2_leaf_tail_t));
+}
/*
* Get address of the bests array in the single-leaf block.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_LEAF_BESTS_P)
-xfs_dir2_data_off_t *
-xfs_dir2_leaf_bests_p(xfs_dir2_leaf_tail_t *ltp);
#define XFS_DIR2_LEAF_BESTS_P(ltp) xfs_dir2_leaf_bests_p(ltp)
-#else
-#define XFS_DIR2_LEAF_BESTS_P(ltp) \
- ((xfs_dir2_data_off_t *)(ltp) - INT_GET((ltp)->bestcount, ARCH_CONVERT))
-#endif
+static inline __be16 *
+xfs_dir2_leaf_bests_p(xfs_dir2_leaf_tail_t *ltp)
+{
+ return (__be16 *)ltp - be32_to_cpu(ltp->bestcount);
+}
/*
* Convert dataptr to byte in file space
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATAPTR_TO_BYTE)
-xfs_dir2_off_t
-xfs_dir2_dataptr_to_byte(struct xfs_mount *mp, xfs_dir2_dataptr_t dp);
#define XFS_DIR2_DATAPTR_TO_BYTE(mp,dp) xfs_dir2_dataptr_to_byte(mp, dp)
-#else
-#define XFS_DIR2_DATAPTR_TO_BYTE(mp,dp) \
- ((xfs_dir2_off_t)(dp) << XFS_DIR2_DATA_ALIGN_LOG)
-#endif
+static inline xfs_dir2_off_t
+xfs_dir2_dataptr_to_byte(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
+{
+ return (xfs_dir2_off_t)(dp) << XFS_DIR2_DATA_ALIGN_LOG;
+}
/*
* Convert byte in file space to dataptr. It had better be aligned.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_DATAPTR)
-xfs_dir2_dataptr_t
-xfs_dir2_byte_to_dataptr(struct xfs_mount *mp, xfs_dir2_off_t by);
#define XFS_DIR2_BYTE_TO_DATAPTR(mp,by) xfs_dir2_byte_to_dataptr(mp,by)
-#else
-#define XFS_DIR2_BYTE_TO_DATAPTR(mp,by) \
- ((xfs_dir2_dataptr_t)((by) >> XFS_DIR2_DATA_ALIGN_LOG))
-#endif
+static inline xfs_dir2_dataptr_t
+xfs_dir2_byte_to_dataptr(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+ return (xfs_dir2_dataptr_t)((by) >> XFS_DIR2_DATA_ALIGN_LOG);
+}
+
+/*
+ * Convert byte in space to (DB) block
+ */
+#define XFS_DIR2_BYTE_TO_DB(mp,by) xfs_dir2_byte_to_db(mp, by)
+static inline xfs_dir2_db_t
+xfs_dir2_byte_to_db(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+ return (xfs_dir2_db_t)((by) >> \
+ ((mp)->m_sb.sb_blocklog + (mp)->m_sb.sb_dirblklog));
+}
/*
* Convert dataptr to a block number
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATAPTR_TO_DB)
-xfs_dir2_db_t
-xfs_dir2_dataptr_to_db(struct xfs_mount *mp, xfs_dir2_dataptr_t dp);
#define XFS_DIR2_DATAPTR_TO_DB(mp,dp) xfs_dir2_dataptr_to_db(mp, dp)
-#else
-#define XFS_DIR2_DATAPTR_TO_DB(mp,dp) \
- XFS_DIR2_BYTE_TO_DB(mp, XFS_DIR2_DATAPTR_TO_BYTE(mp, dp))
-#endif
+static inline xfs_dir2_db_t
+xfs_dir2_dataptr_to_db(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
+{
+ return XFS_DIR2_BYTE_TO_DB(mp, XFS_DIR2_DATAPTR_TO_BYTE(mp, dp));
+}
+
+/*
+ * Convert byte in space to offset in a block
+ */
+#define XFS_DIR2_BYTE_TO_OFF(mp,by) xfs_dir2_byte_to_off(mp, by)
+static inline xfs_dir2_data_aoff_t
+xfs_dir2_byte_to_off(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+ return (xfs_dir2_data_aoff_t)((by) & \
+ ((1 << ((mp)->m_sb.sb_blocklog + (mp)->m_sb.sb_dirblklog)) - 1));
+}
/*
* Convert dataptr to a byte offset in a block
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DATAPTR_TO_OFF)
-xfs_dir2_data_aoff_t
-xfs_dir2_dataptr_to_off(struct xfs_mount *mp, xfs_dir2_dataptr_t dp);
#define XFS_DIR2_DATAPTR_TO_OFF(mp,dp) xfs_dir2_dataptr_to_off(mp, dp)
-#else
-#define XFS_DIR2_DATAPTR_TO_OFF(mp,dp) \
- XFS_DIR2_BYTE_TO_OFF(mp, XFS_DIR2_DATAPTR_TO_BYTE(mp, dp))
-#endif
+static inline xfs_dir2_data_aoff_t
+xfs_dir2_dataptr_to_off(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
+{
+ return XFS_DIR2_BYTE_TO_OFF(mp, XFS_DIR2_DATAPTR_TO_BYTE(mp, dp));
+}
/*
* Convert block and offset to byte in space
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_OFF_TO_BYTE)
-xfs_dir2_off_t
-xfs_dir2_db_off_to_byte(struct xfs_mount *mp, xfs_dir2_db_t db,
- xfs_dir2_data_aoff_t o);
#define XFS_DIR2_DB_OFF_TO_BYTE(mp,db,o) \
xfs_dir2_db_off_to_byte(mp, db, o)
-#else
-#define XFS_DIR2_DB_OFF_TO_BYTE(mp,db,o) \
- (((xfs_dir2_off_t)(db) << \
- ((mp)->m_sb.sb_blocklog + (mp)->m_sb.sb_dirblklog)) + (o))
-#endif
+static inline xfs_dir2_off_t
+xfs_dir2_db_off_to_byte(struct xfs_mount *mp, xfs_dir2_db_t db,
+ xfs_dir2_data_aoff_t o)
+{
+ return ((xfs_dir2_off_t)(db) << \
+ ((mp)->m_sb.sb_blocklog + (mp)->m_sb.sb_dirblklog)) + (o);
+}
/*
- * Convert byte in space to (DB) block
+ * Convert block (DB) to block (dablk)
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_DB)
-xfs_dir2_db_t xfs_dir2_byte_to_db(struct xfs_mount *mp, xfs_dir2_off_t by);
-#define XFS_DIR2_BYTE_TO_DB(mp,by) xfs_dir2_byte_to_db(mp, by)
-#else
-#define XFS_DIR2_BYTE_TO_DB(mp,by) \
- ((xfs_dir2_db_t)((by) >> \
- ((mp)->m_sb.sb_blocklog + (mp)->m_sb.sb_dirblklog)))
-#endif
+#define XFS_DIR2_DB_TO_DA(mp,db) xfs_dir2_db_to_da(mp, db)
+static inline xfs_dablk_t
+xfs_dir2_db_to_da(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+ return (xfs_dablk_t)((db) << (mp)->m_sb.sb_dirblklog);
+}
/*
* Convert byte in space to (DA) block
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_DA)
-xfs_dablk_t xfs_dir2_byte_to_da(struct xfs_mount *mp, xfs_dir2_off_t by);
#define XFS_DIR2_BYTE_TO_DA(mp,by) xfs_dir2_byte_to_da(mp, by)
-#else
-#define XFS_DIR2_BYTE_TO_DA(mp,by) \
- XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_BYTE_TO_DB(mp, by))
-#endif
-
-/*
- * Convert byte in space to offset in a block
- */
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_BYTE_TO_OFF)
-xfs_dir2_data_aoff_t
-xfs_dir2_byte_to_off(struct xfs_mount *mp, xfs_dir2_off_t by);
-#define XFS_DIR2_BYTE_TO_OFF(mp,by) xfs_dir2_byte_to_off(mp, by)
-#else
-#define XFS_DIR2_BYTE_TO_OFF(mp,by) \
- ((xfs_dir2_data_aoff_t)((by) & \
- ((1 << ((mp)->m_sb.sb_blocklog + \
- (mp)->m_sb.sb_dirblklog)) - 1)))
-#endif
+static inline xfs_dablk_t
+xfs_dir2_byte_to_da(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+ return XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_BYTE_TO_DB(mp, by));
+}
/*
* Convert block and offset to dataptr
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_OFF_TO_DATAPTR)
-xfs_dir2_dataptr_t
-xfs_dir2_db_off_to_dataptr(struct xfs_mount *mp, xfs_dir2_db_t db,
- xfs_dir2_data_aoff_t o);
#define XFS_DIR2_DB_OFF_TO_DATAPTR(mp,db,o) \
xfs_dir2_db_off_to_dataptr(mp, db, o)
-#else
-#define XFS_DIR2_DB_OFF_TO_DATAPTR(mp,db,o) \
- XFS_DIR2_BYTE_TO_DATAPTR(mp, XFS_DIR2_DB_OFF_TO_BYTE(mp, db, o))
-#endif
-
-/*
- * Convert block (DB) to block (dablk)
- */
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DB_TO_DA)
-xfs_dablk_t xfs_dir2_db_to_da(struct xfs_mount *mp, xfs_dir2_db_t db);
-#define XFS_DIR2_DB_TO_DA(mp,db) xfs_dir2_db_to_da(mp, db)
-#else
-#define XFS_DIR2_DB_TO_DA(mp,db) \
- ((xfs_dablk_t)((db) << (mp)->m_sb.sb_dirblklog))
-#endif
+static inline xfs_dir2_dataptr_t
+xfs_dir2_db_off_to_dataptr(struct xfs_mount *mp, xfs_dir2_db_t db,
+ xfs_dir2_data_aoff_t o)
+{
+ return XFS_DIR2_BYTE_TO_DATAPTR(mp, XFS_DIR2_DB_OFF_TO_BYTE(mp, db, o));
+}
/*
* Convert block (dablk) to block (DB)
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DA_TO_DB)
-xfs_dir2_db_t xfs_dir2_da_to_db(struct xfs_mount *mp, xfs_dablk_t da);
#define XFS_DIR2_DA_TO_DB(mp,da) xfs_dir2_da_to_db(mp, da)
-#else
-#define XFS_DIR2_DA_TO_DB(mp,da) \
- ((xfs_dir2_db_t)((da) >> (mp)->m_sb.sb_dirblklog))
-#endif
+static inline xfs_dir2_db_t
+xfs_dir2_da_to_db(struct xfs_mount *mp, xfs_dablk_t da)
+{
+ return (xfs_dir2_db_t)((da) >> (mp)->m_sb.sb_dirblklog);
+}
/*
* Convert block (dablk) to byte offset in space
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR2_DA_TO_BYTE)
-xfs_dir2_off_t xfs_dir2_da_to_byte(struct xfs_mount *mp, xfs_dablk_t da);
#define XFS_DIR2_DA_TO_BYTE(mp,da) xfs_dir2_da_to_byte(mp, da)
-#else
-#define XFS_DIR2_DA_TO_BYTE(mp,da) \
- XFS_DIR2_DB_OFF_TO_BYTE(mp, XFS_DIR2_DA_TO_DB(mp, da), 0)
-#endif
+static inline xfs_dir2_off_t
+xfs_dir2_da_to_byte(struct xfs_mount *mp, xfs_dablk_t da)
+{
+ return XFS_DIR2_DB_OFF_TO_BYTE(mp, XFS_DIR2_DA_TO_DB(mp, da), 0);
+}
/*
* Function declarations.
*/
-
-extern int
- xfs_dir2_block_to_leaf(struct xfs_da_args *args, struct xfs_dabuf *dbp);
-
-extern int
- xfs_dir2_leaf_addname(struct xfs_da_args *args);
-
-extern void
- xfs_dir2_leaf_compact(struct xfs_da_args *args, struct xfs_dabuf *bp);
-
-extern void
- xfs_dir2_leaf_compact_x1(struct xfs_dabuf *bp, int *indexp,
- int *lowstalep, int *highstalep, int *lowlogp,
- int *highlogp);
-
-extern int
- xfs_dir2_leaf_getdents(struct xfs_trans *tp, struct xfs_inode *dp,
- struct uio *uio, int *eofp, struct xfs_dirent *dbp,
- xfs_dir2_put_t put);
-
-extern int
- xfs_dir2_leaf_init(struct xfs_da_args *args, xfs_dir2_db_t bno,
- struct xfs_dabuf **bpp, int magic);
-
-extern void
- xfs_dir2_leaf_log_ents(struct xfs_trans *tp, struct xfs_dabuf *bp,
- int first, int last);
-
-extern void
- xfs_dir2_leaf_log_bests(struct xfs_trans *tp, struct xfs_dabuf *bp,
- int first, int last);
-
-extern void
- xfs_dir2_leaf_log_header(struct xfs_trans *tp, struct xfs_dabuf *bp);
-
-extern void
- xfs_dir2_leaf_log_tail(struct xfs_trans *tp, struct xfs_dabuf *bp);
-
-extern int
- xfs_dir2_leaf_lookup(struct xfs_da_args *args);
-
-extern int
- xfs_dir2_leaf_removename(struct xfs_da_args *args);
-
-extern int
- xfs_dir2_leaf_replace(struct xfs_da_args *args);
-
-extern int
- xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
- struct xfs_dabuf *lbp);
-extern int
- xfs_dir2_leaf_trim_data(struct xfs_da_args *args, struct xfs_dabuf *lbp, xfs_dir2_db_t db);
-
-extern int
- xfs_dir2_node_to_leaf(struct xfs_da_state *state);
+extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
+ struct xfs_dabuf *dbp);
+extern int xfs_dir2_leaf_addname(struct xfs_da_args *args);
+extern void xfs_dir2_leaf_compact(struct xfs_da_args *args,
+ struct xfs_dabuf *bp);
+extern void xfs_dir2_leaf_compact_x1(struct xfs_dabuf *bp, int *indexp,
+ int *lowstalep, int *highstalep,
+ int *lowlogp, int *highlogp);
+extern int xfs_dir2_leaf_getdents(struct xfs_trans *tp, struct xfs_inode *dp,
+ struct uio *uio, int *eofp,
+ struct xfs_dirent *dbp, xfs_dir2_put_t put);
+extern int xfs_dir2_leaf_init(struct xfs_da_args *args, xfs_dir2_db_t bno,
+ struct xfs_dabuf **bpp, int magic);
+extern void xfs_dir2_leaf_log_ents(struct xfs_trans *tp, struct xfs_dabuf *bp,
+ int first, int last);
+extern void xfs_dir2_leaf_log_header(struct xfs_trans *tp,
+ struct xfs_dabuf *bp);
+extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
+extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
+extern int xfs_dir2_leaf_replace(struct xfs_da_args *args);
+extern int xfs_dir2_leaf_search_hash(struct xfs_da_args *args,
+ struct xfs_dabuf *lbp);
+extern int xfs_dir2_leaf_trim_data(struct xfs_da_args *args,
+ struct xfs_dabuf *lbp, xfs_dir2_db_t db);
+extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
#endif /* __XFS_DIR2_LEAF_H__ */
git://git.onelab.eu / linux-2.6.git / blobdiff