/*
- * Copyright (c) 2000,2002-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000,2002-2005 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_BMAP_BTREE_H__
#define __XFS_BMAP_BTREE_H__
/*
* Bmap root header, on-disk form only.
*/
-typedef struct xfs_bmdr_block
-{
- __uint16_t bb_level; /* 0 is a leaf */
- __uint16_t bb_numrecs; /* current # of data records */
+typedef struct xfs_bmdr_block {
+ __be16 bb_level; /* 0 is a leaf */
+ __be16 bb_numrecs; /* current # of data records */
} xfs_bmdr_block_t;
/*
/*
* Key structure for non-leaf levels of the tree.
*/
-typedef struct xfs_bmbt_key
-{
- xfs_dfiloff_t br_startoff; /* starting file offset */
+typedef struct xfs_bmbt_key {
+ __be64 br_startoff; /* starting file offset */
} xfs_bmbt_key_t, xfs_bmdr_key_t;
-typedef xfs_dfsbno_t xfs_bmbt_ptr_t, xfs_bmdr_ptr_t; /* btree pointer type */
- /* btree block header type */
+/* btree pointer type */
+typedef __be64 xfs_bmbt_ptr_t, xfs_bmdr_ptr_t;
+
+/* btree block header type */
typedef struct xfs_btree_lblock xfs_bmbt_block_t;
#define XFS_BUF_TO_BMBT_BLOCK(bp) ((xfs_bmbt_block_t *)XFS_BUF_PTR(bp))
-#define XFS_BMAP_IBLOCK_SIZE(lev,cur) (1 << (cur)->bc_blocklog)
#define XFS_BMAP_RBLOCK_DSIZE(lev,cur) ((cur)->bc_private.b.forksize)
#define XFS_BMAP_RBLOCK_ISIZE(lev,cur) \
((int)XFS_IFORK_PTR((cur)->bc_private.b.ip, \
(cur)->bc_private.b.whichfork)->if_broot_bytes)
-#define XFS_BMAP_BLOCK_DSIZE(lev,cur) \
- (((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BMAP_RBLOCK_DSIZE(lev,cur) : XFS_BMAP_IBLOCK_SIZE(lev,cur)))
-#define XFS_BMAP_BLOCK_ISIZE(lev,cur) \
- (((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BMAP_RBLOCK_ISIZE(lev,cur) : XFS_BMAP_IBLOCK_SIZE(lev,cur)))
-
#define XFS_BMAP_BLOCK_DMAXRECS(lev,cur) \
(((lev) == (cur)->bc_nlevels - 1 ? \
XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur), \
xfs_bmbt, (lev) == 0) : \
((cur)->bc_mp->m_bmap_dmnr[(lev) != 0])))
-#define XFS_BMAP_REC_DADDR(bb,i,cur) \
- (XFS_BTREE_REC_ADDR(XFS_BMAP_BLOCK_DSIZE( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \
- xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur)))
-#define XFS_BMAP_REC_IADDR(bb,i,cur) \
- (XFS_BTREE_REC_ADDR(XFS_BMAP_BLOCK_ISIZE( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \
- xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur)))
+#define XFS_BMAP_REC_DADDR(bb,i,cur) (XFS_BTREE_REC_ADDR(xfs_bmbt, bb, i))
+
+#define XFS_BMAP_REC_IADDR(bb,i,cur) (XFS_BTREE_REC_ADDR(xfs_bmbt, bb, i))
#define XFS_BMAP_KEY_DADDR(bb,i,cur) \
- (XFS_BTREE_KEY_ADDR(XFS_BMAP_BLOCK_DSIZE( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \
- xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur)))
+ (XFS_BTREE_KEY_ADDR(xfs_bmbt, bb, i))
+
#define XFS_BMAP_KEY_IADDR(bb,i,cur) \
- (XFS_BTREE_KEY_ADDR(XFS_BMAP_BLOCK_ISIZE( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \
- xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur)))
+ (XFS_BTREE_KEY_ADDR(xfs_bmbt, bb, i))
#define XFS_BMAP_PTR_DADDR(bb,i,cur) \
- (XFS_BTREE_PTR_ADDR(XFS_BMAP_BLOCK_DSIZE( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \
- xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur)))
+ (XFS_BTREE_PTR_ADDR(xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \
+ be16_to_cpu((bb)->bb_level), cur)))
#define XFS_BMAP_PTR_IADDR(bb,i,cur) \
- (XFS_BTREE_PTR_ADDR(XFS_BMAP_BLOCK_ISIZE( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur), \
- xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS( \
- INT_GET((bb)->bb_level, ARCH_CONVERT), cur)))
+ (XFS_BTREE_PTR_ADDR(xfs_bmbt, bb, i, XFS_BMAP_BLOCK_IMAXRECS( \
+ be16_to_cpu((bb)->bb_level), cur)))
/*
* These are to be used when we know the size of the block and
* we don't have a cursor.
*/
#define XFS_BMAP_BROOT_REC_ADDR(bb,i,sz) \
- (XFS_BTREE_REC_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz)))
+ (XFS_BTREE_REC_ADDR(xfs_bmbt,bb,i))
#define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz) \
- (XFS_BTREE_KEY_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz)))
+ (XFS_BTREE_KEY_ADDR(xfs_bmbt,bb,i))
#define XFS_BMAP_BROOT_PTR_ADDR(bb,i,sz) \
- (XFS_BTREE_PTR_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz)))
+ (XFS_BTREE_PTR_ADDR(xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz)))
-#define XFS_BMAP_BROOT_NUMRECS(bb) INT_GET((bb)->bb_numrecs, ARCH_CONVERT)
+#define XFS_BMAP_BROOT_NUMRECS(bb) be16_to_cpu((bb)->bb_numrecs)
#define XFS_BMAP_BROOT_MAXRECS(sz) XFS_BTREE_BLOCK_MAXRECS(sz,xfs_bmbt,0)
#define XFS_BMAP_BROOT_SPACE_CALC(nrecs) \
((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t))))
#define XFS_BMAP_BROOT_SPACE(bb) \
- (XFS_BMAP_BROOT_SPACE_CALC(INT_GET((bb)->bb_numrecs, ARCH_CONVERT)))
+ (XFS_BMAP_BROOT_SPACE_CALC(be16_to_cpu((bb)->bb_numrecs)))
#define XFS_BMDR_SPACE_CALC(nrecs) \
(int)(sizeof(xfs_bmdr_block_t) + \
((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t))))
#define XFS_BM_MAXLEVELS(mp,w) ((mp)->m_bm_maxlevels[(w)])
#define XFS_BMAP_SANITY_CHECK(mp,bb,level) \
- (INT_GET((bb)->bb_magic, ARCH_CONVERT) == XFS_BMAP_MAGIC && \
- INT_GET((bb)->bb_level, ARCH_CONVERT) == level && \
- INT_GET((bb)->bb_numrecs, ARCH_CONVERT) > 0 && \
- INT_GET((bb)->bb_numrecs, ARCH_CONVERT) <= \
- (mp)->m_bmap_dmxr[(level) != 0])
+ (be32_to_cpu((bb)->bb_magic) == XFS_BMAP_MAGIC && \
+ be16_to_cpu((bb)->bb_level) == level && \
+ be16_to_cpu((bb)->bb_numrecs) > 0 && \
+ be16_to_cpu((bb)->bb_numrecs) <= (mp)->m_bmap_dmxr[(level) != 0])
#ifdef __KERNEL__
#ifndef XFS_NATIVE_HOST
extern void xfs_bmbt_disk_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s);
-extern xfs_exntst_t xfs_bmbt_disk_get_state(xfs_bmbt_rec_t *r);
extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r);
-extern xfs_fsblock_t xfs_bmbt_disk_get_startblock(xfs_bmbt_rec_t *r);
extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r);
#else
#define xfs_bmbt_disk_get_all(r, s) xfs_bmbt_get_all(r, s)
-#define xfs_bmbt_disk_get_state(r) xfs_bmbt_get_state(r)
#define xfs_bmbt_disk_get_blockcount(r) xfs_bmbt_get_blockcount(r)
-#define xfs_bmbt_disk_get_startblock(r) xfs_bmbt_get_blockcount(r)
#define xfs_bmbt_disk_get_startoff(r) xfs_bmbt_get_startoff(r)
#endif /* XFS_NATIVE_HOST */
extern int xfs_bmbt_update(struct xfs_btree_cur *, xfs_fileoff_t,
xfs_fsblock_t, xfs_filblks_t, xfs_exntst_t);
-#ifdef DEBUG
-/*
- * Get the data from the pointed-to record.
- */
-extern int xfs_bmbt_get_rec(struct xfs_btree_cur *, xfs_fileoff_t *,
- xfs_fsblock_t *, xfs_filblks_t *,
- xfs_exntst_t *, int *);
-#endif
-
-/*
- * Search an extent list for the extent which includes block
- * bno.
- */
-xfs_bmbt_rec_t *xfs_bmap_do_search_extents(xfs_bmbt_rec_t *,
- xfs_extnum_t, xfs_extnum_t, xfs_fileoff_t, int *,
- xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
-
#endif /* __KERNEL__ */
#endif /* __XFS_BMAP_BTREE_H__ */
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