694 строки
20 KiB
C
694 строки
20 KiB
C
/*
|
|
* Copyright (c) 2000,2002-2004 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_BMAP_BTREE_H__
|
|
#define __XFS_BMAP_BTREE_H__
|
|
|
|
#define XFS_BMAP_MAGIC 0x424d4150 /* 'BMAP' */
|
|
|
|
struct xfs_btree_cur;
|
|
struct xfs_btree_lblock;
|
|
struct xfs_mount;
|
|
struct xfs_inode;
|
|
|
|
/*
|
|
* 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 */
|
|
} 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.
|
|
*/
|
|
|
|
#ifndef XFS_NATIVE_HOST
|
|
|
|
#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 /* XFS_NATIVE_HOST */
|
|
|
|
|
|
#define BMBT_USE_64 1
|
|
|
|
typedef struct xfs_bmbt_rec_32
|
|
{
|
|
__uint32_t l0, l1, l2, l3;
|
|
} xfs_bmbt_rec_32_t;
|
|
typedef struct xfs_bmbt_rec_64
|
|
{
|
|
__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;
|
|
|
|
/*
|
|
* Values and macros for delayed-allocation startblock fields.
|
|
*/
|
|
#define STARTBLOCKVALBITS 17
|
|
#define STARTBLOCKMASKBITS (15 + XFS_BIG_BLKNOS * 20)
|
|
#define DSTARTBLOCKMASKBITS (15 + 20)
|
|
#define STARTBLOCKMASK \
|
|
(((((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
|
|
|
|
/*
|
|
* Possible extent formats.
|
|
*/
|
|
typedef enum {
|
|
XFS_EXTFMT_NOSTATE = 0,
|
|
XFS_EXTFMT_HASSTATE
|
|
} xfs_exntfmt_t;
|
|
|
|
/*
|
|
* Possible extent states.
|
|
*/
|
|
typedef enum {
|
|
XFS_EXT_NORM, XFS_EXT_UNWRITTEN,
|
|
XFS_EXT_DMAPI_OFFLINE, XFS_EXT_INVALID
|
|
} xfs_exntst_t;
|
|
|
|
/*
|
|
* 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 ISUNWRITTEN(x) ((x)->br_state == XFS_EXT_UNWRITTEN)
|
|
|
|
/*
|
|
* Incore version of above.
|
|
*/
|
|
typedef struct xfs_bmbt_irec
|
|
{
|
|
xfs_fileoff_t br_startoff; /* starting file offset */
|
|
xfs_fsblock_t br_startblock; /* starting block number */
|
|
xfs_filblks_t br_blockcount; /* number of blocks */
|
|
xfs_exntst_t br_state; /* extent state */
|
|
} xfs_bmbt_irec_t;
|
|
|
|
/*
|
|
* Key structure for non-leaf levels of the tree.
|
|
*/
|
|
typedef struct xfs_bmbt_key
|
|
{
|
|
xfs_dfiloff_t 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
|
|
|
|
/*
|
|
* 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_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
|
|
#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
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* Prototypes for xfs_bmap.c to call.
|
|
*/
|
|
|
|
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);
|
|
|
|
#ifndef XFS_NATIVE_HOST
|
|
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 /* XFS_NATIVE_HOST */
|
|
|
|
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 *);
|
|
|
|
/*
|
|
* 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);
|
|
|
|
#ifndef XFS_NATIVE_HOST
|
|
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 /* XFS_NATIVE_HOST */
|
|
|
|
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
|
|
|
|
|
|
/*
|
|
* 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__ */
|