/*
- * 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__
#define XFS_BMAP_MAGIC 0x424d4150 /* 'BMAP' */
struct xfs_btree_cur;
-struct xfs_btree_lblock;
+struct xfs_btree_block;
struct xfs_mount;
struct xfs_inode;
+struct xfs_trans;
/*
* 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;
/*
* Bmap btree record and extent descriptor.
- * For 32-bit kernels,
- * l0:31 is an extent flag (value 1 indicates non-normal).
- * l0:0-30 and l1:9-31 are startoff.
- * l1:0-8, l2:0-31, and l3:21-31 are startblock.
- * l3:0-20 are blockcount.
- * For 64-bit kernels,
* l0:63 is an extent flag (value 1 indicates non-normal).
* l0:9-62 are startoff.
* l0:0-8 and l1:21-63 are startblock.
* l1:0-20 are blockcount.
*/
-
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-
-#define BMBT_TOTAL_BITLEN 128 /* 128 bits, 16 bytes */
-#define BMBT_EXNTFLAG_BITOFF 0
-#define BMBT_EXNTFLAG_BITLEN 1
-#define BMBT_STARTOFF_BITOFF (BMBT_EXNTFLAG_BITOFF + BMBT_EXNTFLAG_BITLEN)
-#define BMBT_STARTOFF_BITLEN 54
-#define BMBT_STARTBLOCK_BITOFF (BMBT_STARTOFF_BITOFF + BMBT_STARTOFF_BITLEN)
-#define BMBT_STARTBLOCK_BITLEN 52
-#define BMBT_BLOCKCOUNT_BITOFF \
- (BMBT_STARTBLOCK_BITOFF + BMBT_STARTBLOCK_BITLEN)
-#define BMBT_BLOCKCOUNT_BITLEN (BMBT_TOTAL_BITLEN - BMBT_BLOCKCOUNT_BITOFF)
-
-#else
-
-#define BMBT_TOTAL_BITLEN 128 /* 128 bits, 16 bytes */
-#define BMBT_EXNTFLAG_BITOFF 63
#define BMBT_EXNTFLAG_BITLEN 1
-#define BMBT_STARTOFF_BITOFF (BMBT_EXNTFLAG_BITOFF - BMBT_STARTOFF_BITLEN)
#define BMBT_STARTOFF_BITLEN 54
-#define BMBT_STARTBLOCK_BITOFF 85 /* 128 - 43 (other 9 is in first word) */
#define BMBT_STARTBLOCK_BITLEN 52
-#define BMBT_BLOCKCOUNT_BITOFF 64 /* Start of second 64 bit container */
#define BMBT_BLOCKCOUNT_BITLEN 21
-#endif
-
+typedef struct xfs_bmbt_rec {
+ __be64 l0, l1;
+} xfs_bmbt_rec_t;
-#define BMBT_USE_64 1
+typedef __uint64_t xfs_bmbt_rec_base_t; /* use this for casts */
+typedef xfs_bmbt_rec_t xfs_bmdr_rec_t;
-typedef struct xfs_bmbt_rec_32
-{
- __uint32_t l0, l1, l2, l3;
-} xfs_bmbt_rec_32_t;
-typedef struct xfs_bmbt_rec_64
-{
+typedef struct xfs_bmbt_rec_host {
__uint64_t l0, l1;
-} xfs_bmbt_rec_64_t;
-
-typedef __uint64_t xfs_bmbt_rec_base_t; /* use this for casts */
-typedef xfs_bmbt_rec_64_t xfs_bmbt_rec_t, xfs_bmdr_rec_t;
+} xfs_bmbt_rec_host_t;
/*
* Values and macros for delayed-allocation startblock fields.
(((((xfs_fsblock_t)1) << STARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
#define DSTARTBLOCKMASK \
(((((xfs_dfsbno_t)1) << DSTARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_ISNULLSTARTBLOCK)
-int isnullstartblock(xfs_fsblock_t x);
-#define ISNULLSTARTBLOCK(x) isnullstartblock(x)
-#else
-#define ISNULLSTARTBLOCK(x) (((x) & STARTBLOCKMASK) == STARTBLOCKMASK)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_ISNULLDSTARTBLOCK)
-int isnulldstartblock(xfs_dfsbno_t x);
-#define ISNULLDSTARTBLOCK(x) isnulldstartblock(x)
-#else
-#define ISNULLDSTARTBLOCK(x) (((x) & DSTARTBLOCKMASK) == DSTARTBLOCKMASK)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_NULLSTARTBLOCK)
-xfs_fsblock_t nullstartblock(int k);
-#define NULLSTARTBLOCK(k) nullstartblock(k)
-#else
-#define NULLSTARTBLOCK(k) \
- ((ASSERT(k < (1 << STARTBLOCKVALBITS))), (STARTBLOCKMASK | (k)))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_STARTBLOCKVAL)
-xfs_filblks_t startblockval(xfs_fsblock_t x);
-#define STARTBLOCKVAL(x) startblockval(x)
-#else
-#define STARTBLOCKVAL(x) ((xfs_filblks_t)((x) & ~STARTBLOCKMASK))
-#endif
+
+static inline int isnullstartblock(xfs_fsblock_t x)
+{
+ return ((x) & STARTBLOCKMASK) == STARTBLOCKMASK;
+}
+
+static inline int isnulldstartblock(xfs_dfsbno_t x)
+{
+ return ((x) & DSTARTBLOCKMASK) == DSTARTBLOCKMASK;
+}
+
+static inline xfs_fsblock_t nullstartblock(int k)
+{
+ ASSERT(k < (1 << STARTBLOCKVALBITS));
+ return STARTBLOCKMASK | (k);
+}
+
+static inline xfs_filblks_t startblockval(xfs_fsblock_t x)
+{
+ return (xfs_filblks_t)((x) & ~STARTBLOCKMASK);
+}
/*
* Possible extent formats.
/*
* Extent state and extent format macros.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_EXTFMT_INODE )
-xfs_exntfmt_t xfs_extfmt_inode(struct xfs_inode *ip);
-#define XFS_EXTFMT_INODE(x) xfs_extfmt_inode(x)
-#else
-#define XFS_EXTFMT_INODE(x) \
- (XFS_SB_VERSION_HASEXTFLGBIT(&((x)->i_mount->m_sb)) ? \
- XFS_EXTFMT_HASSTATE : XFS_EXTFMT_NOSTATE)
-#endif
+#define XFS_EXTFMT_INODE(x) \
+ (xfs_sb_version_hasextflgbit(&((x)->i_mount->m_sb)) ? \
+ XFS_EXTFMT_HASSTATE : XFS_EXTFMT_NOSTATE)
#define ISUNWRITTEN(x) ((x)->br_state == XFS_EXT_UNWRITTEN)
/*
/*
* 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 */
-typedef struct xfs_btree_lblock xfs_bmbt_block_t;
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_BMBT_BLOCK)
-xfs_bmbt_block_t *xfs_buf_to_bmbt_block(struct xfs_buf *bp);
-#define XFS_BUF_TO_BMBT_BLOCK(bp) xfs_buf_to_bmbt_block(bp)
-#else
-#define XFS_BUF_TO_BMBT_BLOCK(bp) ((xfs_bmbt_block_t *)(XFS_BUF_PTR(bp)))
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_RBLOCK_DSIZE)
-int xfs_bmap_rblock_dsize(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_RBLOCK_DSIZE(lev,cur) xfs_bmap_rblock_dsize(lev,cur)
-#else
-#define XFS_BMAP_RBLOCK_DSIZE(lev,cur) ((cur)->bc_private.b.forksize)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_RBLOCK_ISIZE)
-int xfs_bmap_rblock_isize(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_RBLOCK_ISIZE(lev,cur) xfs_bmap_rblock_isize(lev,cur)
-#else
-#define XFS_BMAP_RBLOCK_ISIZE(lev,cur) \
- ((int)XFS_IFORK_PTR((cur)->bc_private.b.ip, \
- (cur)->bc_private.b.whichfork)->if_broot_bytes)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_IBLOCK_SIZE)
-int xfs_bmap_iblock_size(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_IBLOCK_SIZE(lev,cur) xfs_bmap_iblock_size(lev,cur)
-#else
-#define XFS_BMAP_IBLOCK_SIZE(lev,cur) (1 << (cur)->bc_blocklog)
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_DSIZE)
-int xfs_bmap_block_dsize(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_BLOCK_DSIZE(lev,cur) xfs_bmap_block_dsize(lev,cur)
-#else
-#define XFS_BMAP_BLOCK_DSIZE(lev,cur) \
- ((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BMAP_RBLOCK_DSIZE(lev,cur) : \
- XFS_BMAP_IBLOCK_SIZE(lev,cur))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_ISIZE)
-int xfs_bmap_block_isize(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_BLOCK_ISIZE(lev,cur) xfs_bmap_block_isize(lev,cur)
-#else
-#define XFS_BMAP_BLOCK_ISIZE(lev,cur) \
- ((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BMAP_RBLOCK_ISIZE(lev,cur) : \
- XFS_BMAP_IBLOCK_SIZE(lev,cur))
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_DMAXRECS)
-int xfs_bmap_block_dmaxrecs(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_BLOCK_DMAXRECS(lev,cur) xfs_bmap_block_dmaxrecs(lev,cur)
-#else
-#define XFS_BMAP_BLOCK_DMAXRECS(lev,cur) \
- ((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur), \
- xfs_bmdr, (lev) == 0) : \
- ((cur)->bc_mp->m_bmap_dmxr[(lev) != 0]))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_IMAXRECS)
-int xfs_bmap_block_imaxrecs(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_BLOCK_IMAXRECS(lev,cur) xfs_bmap_block_imaxrecs(lev,cur)
-#else
-#define XFS_BMAP_BLOCK_IMAXRECS(lev,cur) \
- ((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BTREE_BLOCK_MAXRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur), \
- xfs_bmbt, (lev) == 0) : \
- ((cur)->bc_mp->m_bmap_dmxr[(lev) != 0]))
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_DMINRECS)
-int xfs_bmap_block_dminrecs(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_BLOCK_DMINRECS(lev,cur) xfs_bmap_block_dminrecs(lev,cur)
-#else
-#define XFS_BMAP_BLOCK_DMINRECS(lev,cur) \
- ((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_DSIZE(lev,cur), \
- xfs_bmdr, (lev) == 0) : \
- ((cur)->bc_mp->m_bmap_dmnr[(lev) != 0]))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BLOCK_IMINRECS)
-int xfs_bmap_block_iminrecs(int lev, struct xfs_btree_cur *cur);
-#define XFS_BMAP_BLOCK_IMINRECS(lev,cur) xfs_bmap_block_iminrecs(lev,cur)
-#else
-#define XFS_BMAP_BLOCK_IMINRECS(lev,cur) \
- ((lev) == (cur)->bc_nlevels - 1 ? \
- XFS_BTREE_BLOCK_MINRECS(XFS_BMAP_RBLOCK_ISIZE(lev,cur), \
- xfs_bmbt, (lev) == 0) : \
- ((cur)->bc_mp->m_bmap_dmnr[(lev) != 0]))
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_REC_DADDR)
-xfs_bmbt_rec_t *
-xfs_bmap_rec_daddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
-#define XFS_BMAP_REC_DADDR(bb,i,cur) xfs_bmap_rec_daddr(bb,i,cur)
-#else
-#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))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_REC_IADDR)
-xfs_bmbt_rec_t *
-xfs_bmap_rec_iaddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
-#define XFS_BMAP_REC_IADDR(bb,i,cur) xfs_bmap_rec_iaddr(bb,i,cur)
-#else
-#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))
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_KEY_DADDR)
-xfs_bmbt_key_t *
-xfs_bmap_key_daddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
-#define XFS_BMAP_KEY_DADDR(bb,i,cur) xfs_bmap_key_daddr(bb,i,cur)
-#else
-#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))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_KEY_IADDR)
-xfs_bmbt_key_t *
-xfs_bmap_key_iaddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
-#define XFS_BMAP_KEY_IADDR(bb,i,cur) xfs_bmap_key_iaddr(bb,i,cur)
-#else
-#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))
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_PTR_DADDR)
-xfs_bmbt_ptr_t *
-xfs_bmap_ptr_daddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
-#define XFS_BMAP_PTR_DADDR(bb,i,cur) xfs_bmap_ptr_daddr(bb,i,cur)
-#else
-#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))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_PTR_IADDR)
-xfs_bmbt_ptr_t *
-xfs_bmap_ptr_iaddr(xfs_bmbt_block_t *bb, int i, struct xfs_btree_cur *cur);
-#define XFS_BMAP_PTR_IADDR(bb,i,cur) xfs_bmap_ptr_iaddr(bb,i,cur)
-#else
-#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))
-#endif
+/* btree pointer type */
+typedef __be64 xfs_bmbt_ptr_t, xfs_bmdr_ptr_t;
+
+/*
+ * Btree block header size depends on a superblock flag.
+ *
+ * (not quite yet, but soon)
+ */
+#define XFS_BMBT_BLOCK_LEN(mp) XFS_BTREE_LBLOCK_LEN
+
+#define XFS_BMBT_REC_ADDR(mp, block, index) \
+ ((xfs_bmbt_rec_t *) \
+ ((char *)(block) + \
+ XFS_BMBT_BLOCK_LEN(mp) + \
+ ((index) - 1) * sizeof(xfs_bmbt_rec_t)))
+
+#define XFS_BMBT_KEY_ADDR(mp, block, index) \
+ ((xfs_bmbt_key_t *) \
+ ((char *)(block) + \
+ XFS_BMBT_BLOCK_LEN(mp) + \
+ ((index) - 1) * sizeof(xfs_bmbt_key_t)))
+
+#define XFS_BMBT_PTR_ADDR(mp, block, index, maxrecs) \
+ ((xfs_bmbt_ptr_t *) \
+ ((char *)(block) + \
+ XFS_BMBT_BLOCK_LEN(mp) + \
+ (maxrecs) * sizeof(xfs_bmbt_key_t) + \
+ ((index) - 1) * sizeof(xfs_bmbt_ptr_t)))
+
+#define XFS_BMDR_REC_ADDR(block, index) \
+ ((xfs_bmdr_rec_t *) \
+ ((char *)(block) + \
+ sizeof(struct xfs_bmdr_block) + \
+ ((index) - 1) * sizeof(xfs_bmdr_rec_t)))
+
+#define XFS_BMDR_KEY_ADDR(block, index) \
+ ((xfs_bmdr_key_t *) \
+ ((char *)(block) + \
+ sizeof(struct xfs_bmdr_block) + \
+ ((index) - 1) * sizeof(xfs_bmdr_key_t)))
+
+#define XFS_BMDR_PTR_ADDR(block, index, maxrecs) \
+ ((xfs_bmdr_ptr_t *) \
+ ((char *)(block) + \
+ sizeof(struct xfs_bmdr_block) + \
+ (maxrecs) * sizeof(xfs_bmdr_key_t) + \
+ ((index) - 1) * sizeof(xfs_bmdr_ptr_t)))
/*
* These are to be used when we know the size of the block and
* we don't have a cursor.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_REC_ADDR)
-xfs_bmbt_rec_t *xfs_bmap_broot_rec_addr(xfs_bmbt_block_t *bb, int i, int sz);
-#define XFS_BMAP_BROOT_REC_ADDR(bb,i,sz) xfs_bmap_broot_rec_addr(bb,i,sz)
-#else
-#define XFS_BMAP_BROOT_REC_ADDR(bb,i,sz) \
- XFS_BTREE_REC_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_KEY_ADDR)
-xfs_bmbt_key_t *xfs_bmap_broot_key_addr(xfs_bmbt_block_t *bb, int i, int sz);
-#define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz) xfs_bmap_broot_key_addr(bb,i,sz)
-#else
-#define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz) \
- XFS_BTREE_KEY_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_PTR_ADDR)
-xfs_bmbt_ptr_t *xfs_bmap_broot_ptr_addr(xfs_bmbt_block_t *bb, int i, int sz);
-#define XFS_BMAP_BROOT_PTR_ADDR(bb,i,sz) xfs_bmap_broot_ptr_addr(bb,i,sz)
-#else
-#define XFS_BMAP_BROOT_PTR_ADDR(bb,i,sz) \
- XFS_BTREE_PTR_ADDR(sz,xfs_bmbt,bb,i,XFS_BMAP_BROOT_MAXRECS(sz))
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_NUMRECS)
-int xfs_bmap_broot_numrecs(xfs_bmdr_block_t *bb);
-#define XFS_BMAP_BROOT_NUMRECS(bb) xfs_bmap_broot_numrecs(bb)
-#else
-#define XFS_BMAP_BROOT_NUMRECS(bb) (INT_GET((bb)->bb_numrecs, ARCH_CONVERT))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_MAXRECS)
-int xfs_bmap_broot_maxrecs(int sz);
-#define XFS_BMAP_BROOT_MAXRECS(sz) xfs_bmap_broot_maxrecs(sz)
-#else
-#define XFS_BMAP_BROOT_MAXRECS(sz) XFS_BTREE_BLOCK_MAXRECS(sz,xfs_bmbt,0)
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_SPACE_CALC)
-int xfs_bmap_broot_space_calc(int nrecs);
-#define XFS_BMAP_BROOT_SPACE_CALC(nrecs) xfs_bmap_broot_space_calc(nrecs)
-#else
+#define XFS_BMAP_BROOT_PTR_ADDR(mp, bb, i, sz) \
+ XFS_BMBT_PTR_ADDR(mp, bb, i, xfs_bmbt_maxrecs(mp, sz, 0))
+
#define XFS_BMAP_BROOT_SPACE_CALC(nrecs) \
- ((int)(sizeof(xfs_bmbt_block_t) + \
- ((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t)))))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_BROOT_SPACE)
-int xfs_bmap_broot_space(xfs_bmdr_block_t *bb);
-#define XFS_BMAP_BROOT_SPACE(bb) xfs_bmap_broot_space(bb)
-#else
+ (int)(XFS_BTREE_LBLOCK_LEN + \
+ ((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))
-#endif
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMDR_SPACE_CALC)
-int xfs_bmdr_space_calc(int nrecs);
-#define XFS_BMDR_SPACE_CALC(nrecs) xfs_bmdr_space_calc(nrecs)
-#else
-#define XFS_BMDR_SPACE_CALC(nrecs) \
- ((int)(sizeof(xfs_bmdr_block_t) + \
- ((nrecs) * (sizeof(xfs_bmbt_key_t) + sizeof(xfs_bmbt_ptr_t)))))
-#endif
+ (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))))
/*
* Maximum number of bmap btree levels.
*/
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BM_MAXLEVELS)
-int xfs_bm_maxlevels(struct xfs_mount *mp, int w);
-#define XFS_BM_MAXLEVELS(mp,w) xfs_bm_maxlevels(mp,w)
-#else
-#define XFS_BM_MAXLEVELS(mp,w) ((mp)->m_bm_maxlevels[w])
-#endif
-
-#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BMAP_SANITY_CHECK)
-int xfs_bmap_sanity_check(struct xfs_mount *mp, xfs_bmbt_block_t *bb,
- int level);
-#define XFS_BMAP_SANITY_CHECK(mp,bb,level) \
- xfs_bmap_sanity_check(mp,bb,level)
-#else
-#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])
-#endif
-
-
-#ifdef __KERNEL__
-
-#if defined(XFS_BMBT_TRACE)
-/*
- * Trace buffer entry types.
- */
-#define XFS_BMBT_KTRACE_ARGBI 1
-#define XFS_BMBT_KTRACE_ARGBII 2
-#define XFS_BMBT_KTRACE_ARGFFFI 3
-#define XFS_BMBT_KTRACE_ARGI 4
-#define XFS_BMBT_KTRACE_ARGIFK 5
-#define XFS_BMBT_KTRACE_ARGIFR 6
-#define XFS_BMBT_KTRACE_ARGIK 7
-#define XFS_BMBT_KTRACE_CUR 8
-
-#define XFS_BMBT_TRACE_SIZE 4096 /* size of global trace buffer */
-#define XFS_BMBT_KTRACE_SIZE 32 /* size of per-inode trace buffer */
-extern ktrace_t *xfs_bmbt_trace_buf;
-#endif
+#define XFS_BM_MAXLEVELS(mp,w) ((mp)->m_bm_maxlevels[(w)])
/*
* Prototypes for xfs_bmap.c to call.
*/
+extern void xfs_bmdr_to_bmbt(struct xfs_mount *, xfs_bmdr_block_t *, int,
+ struct xfs_btree_block *, int);
+extern void xfs_bmbt_get_all(xfs_bmbt_rec_host_t *r, xfs_bmbt_irec_t *s);
+extern xfs_filblks_t xfs_bmbt_get_blockcount(xfs_bmbt_rec_host_t *r);
+extern xfs_fsblock_t xfs_bmbt_get_startblock(xfs_bmbt_rec_host_t *r);
+extern xfs_fileoff_t xfs_bmbt_get_startoff(xfs_bmbt_rec_host_t *r);
+extern xfs_exntst_t xfs_bmbt_get_state(xfs_bmbt_rec_host_t *r);
-void
-xfs_bmdr_to_bmbt(
- xfs_bmdr_block_t *,
- int,
- xfs_bmbt_block_t *,
- int);
-
-int
-xfs_bmbt_decrement(
- struct xfs_btree_cur *,
- int,
- int *);
-
-int
-xfs_bmbt_delete(
- struct xfs_btree_cur *,
- int *);
-
-void
-xfs_bmbt_get_all(
- xfs_bmbt_rec_t *r,
- xfs_bmbt_irec_t *s);
-
-xfs_bmbt_block_t *
-xfs_bmbt_get_block(
- struct xfs_btree_cur *cur,
- int level,
- struct xfs_buf **bpp);
-
-xfs_filblks_t
-xfs_bmbt_get_blockcount(
- xfs_bmbt_rec_t *r);
-
-xfs_fsblock_t
-xfs_bmbt_get_startblock(
- xfs_bmbt_rec_t *r);
-
-xfs_fileoff_t
-xfs_bmbt_get_startoff(
- xfs_bmbt_rec_t *r);
-
-xfs_exntst_t
-xfs_bmbt_get_state(
- xfs_bmbt_rec_t *r);
-
-#if __BYTE_ORDER != __BIG_ENDIAN
-void
-xfs_bmbt_disk_get_all(
- xfs_bmbt_rec_t *r,
- xfs_bmbt_irec_t *s);
-
-xfs_exntst_t
-xfs_bmbt_disk_get_state(
- xfs_bmbt_rec_t *r);
-
-xfs_filblks_t
-xfs_bmbt_disk_get_blockcount(
- xfs_bmbt_rec_t *r);
-
-xfs_fsblock_t
-xfs_bmbt_disk_get_startblock(
- xfs_bmbt_rec_t *r);
-
-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
-
-int
-xfs_bmbt_increment(
- struct xfs_btree_cur *,
- int,
- int *);
-
-int
-xfs_bmbt_insert(
- struct xfs_btree_cur *,
- int *);
-
-void
-xfs_bmbt_log_block(
- struct xfs_btree_cur *,
- struct xfs_buf *,
- int);
-
-void
-xfs_bmbt_log_recs(
- struct xfs_btree_cur *,
- struct xfs_buf *,
- int,
- int);
-
-int
-xfs_bmbt_lookup_eq(
- struct xfs_btree_cur *,
- xfs_fileoff_t,
- xfs_fsblock_t,
- xfs_filblks_t,
- int *);
-
-int
-xfs_bmbt_lookup_ge(
- struct xfs_btree_cur *,
- xfs_fileoff_t,
- xfs_fsblock_t,
- xfs_filblks_t,
- int *);
+extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r);
+extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r);
-/*
- * Give the bmap btree a new root block. Copy the old broot contents
- * down into a real block and make the broot point to it.
- */
-int /* error */
-xfs_bmbt_newroot(
- struct xfs_btree_cur *cur, /* btree cursor */
- int *logflags, /* logging flags for inode */
- int *stat); /* return status - 0 fail */
-
-void
-xfs_bmbt_set_all(
- xfs_bmbt_rec_t *r,
- xfs_bmbt_irec_t *s);
-
-void
-xfs_bmbt_set_allf(
- xfs_bmbt_rec_t *r,
- xfs_fileoff_t o,
- xfs_fsblock_t b,
- xfs_filblks_t c,
- xfs_exntst_t v);
-
-void
-xfs_bmbt_set_blockcount(
- xfs_bmbt_rec_t *r,
- xfs_filblks_t v);
-
-void
-xfs_bmbt_set_startblock(
- xfs_bmbt_rec_t *r,
- xfs_fsblock_t v);
-
-void
-xfs_bmbt_set_startoff(
- xfs_bmbt_rec_t *r,
- xfs_fileoff_t v);
-
-void
-xfs_bmbt_set_state(
- xfs_bmbt_rec_t *r,
- xfs_exntst_t v);
-
-#if __BYTE_ORDER != __BIG_ENDIAN
-void
-xfs_bmbt_disk_set_all(
- xfs_bmbt_rec_t *r,
- xfs_bmbt_irec_t *s);
-
-void
-xfs_bmbt_disk_set_allf(
- xfs_bmbt_rec_t *r,
- xfs_fileoff_t o,
- xfs_fsblock_t b,
- xfs_filblks_t c,
- xfs_exntst_t v);
-#else
-#define xfs_bmbt_disk_set_all(r, s) \
- xfs_bmbt_set_all(r, s)
-#define xfs_bmbt_disk_set_allf(r, o, b, c, v) \
- xfs_bmbt_set_allf(r, o, b, c, v)
-#endif
-
-void
-xfs_bmbt_to_bmdr(
- xfs_bmbt_block_t *,
- int,
- xfs_bmdr_block_t *,
- int);
-
-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.
- */
-int
-xfs_bmbt_get_rec(
- struct xfs_btree_cur *,
- xfs_fileoff_t *,
- xfs_fsblock_t *,
- xfs_filblks_t *,
- xfs_exntst_t *,
- int *);
-#endif
+extern void xfs_bmbt_set_all(xfs_bmbt_rec_host_t *r, xfs_bmbt_irec_t *s);
+extern void xfs_bmbt_set_allf(xfs_bmbt_rec_host_t *r, xfs_fileoff_t o,
+ xfs_fsblock_t b, xfs_filblks_t c, xfs_exntst_t v);
+extern void xfs_bmbt_set_blockcount(xfs_bmbt_rec_host_t *r, xfs_filblks_t v);
+extern void xfs_bmbt_set_startblock(xfs_bmbt_rec_host_t *r, xfs_fsblock_t v);
+extern void xfs_bmbt_set_startoff(xfs_bmbt_rec_host_t *r, xfs_fileoff_t v);
+extern void xfs_bmbt_set_state(xfs_bmbt_rec_host_t *r, xfs_exntst_t v);
+extern void xfs_bmbt_disk_set_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s);
+extern void xfs_bmbt_disk_set_allf(xfs_bmbt_rec_t *r, xfs_fileoff_t o,
+ xfs_fsblock_t b, xfs_filblks_t c, xfs_exntst_t v);
+
+extern void xfs_bmbt_to_bmdr(struct xfs_mount *, struct xfs_btree_block *, int,
+ xfs_bmdr_block_t *, int);
+
+extern int xfs_bmbt_get_maxrecs(struct xfs_btree_cur *, int level);
+extern int xfs_bmdr_maxrecs(struct xfs_mount *, int blocklen, int leaf);
+extern int xfs_bmbt_maxrecs(struct xfs_mount *, int blocklen, int leaf);
+
+extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *,
+ struct xfs_trans *, struct xfs_inode *, int);
-/*
- * 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__ */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff