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C/C++ Source or Header | 2005-10-18 | 20.3 KB | 506 lines

/* * Copyright (c) 2000-2004 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 __LIBXFS_H__ #define __LIBXFS_H__ #define XFS_BIG_INUMS 1 #define XFS_BIG_BLKNOS 1 #include <xfs/platform_defs.h> #include <xfs/xfs_fs.h> #include <xfs/xfs_types.h> #include <xfs/xfs_arch.h> #include <xfs/xfs_sb.h> #include <xfs/xfs_bit.h> #include <xfs/xfs_inum.h> #include <xfs/xfs_ag.h> #include <xfs/xfs_da_btree.h> #include <xfs/xfs_bmap_btree.h> #include <xfs/xfs_alloc_btree.h> #include <xfs/xfs_ialloc_btree.h> #include <xfs/xfs_alloc.h> #include <xfs/xfs_ialloc.h> #include <xfs/xfs_rtalloc.h> #include <xfs/xfs_btree.h> #include <xfs/xfs_dir.h> #include <xfs/xfs_dir_sf.h> #include <xfs/xfs_dir_leaf.h> #include <xfs/xfs_dir2.h> #include <xfs/xfs_dir2_data.h> #include <xfs/xfs_dir2_leaf.h> #include <xfs/xfs_dir2_block.h> #include <xfs/xfs_dir2_node.h> #include <xfs/xfs_dir2_sf.h> #include <xfs/xfs_attr_sf.h> #include <xfs/xfs_dinode.h> #include <xfs/xfs_attr_leaf.h> #include <xfs/xfs_quota.h> #include <xfs/xfs_mount.h> #include <xfs/xfs_trans_space.h> #include <xfs/xfs_inode.h> #include <xfs/xfs_buf_item.h> #include <xfs/xfs_inode_item.h> #include <xfs/xfs_bmap.h> #include <xfs/xfs_imap.h> #include <xfs/xfs_log.h> #include <xfs/xfs_log_priv.h> #ifndef XFS_SUPER_MAGIC #define XFS_SUPER_MAGIC 0x58465342 #endif #define xfs_isset(a,i) ((a)[(i)/(sizeof((a))*NBBY)] & (1<<((i)%(sizeof((a))*NBBY)))) /* * Argument structure for libxfs_init(). */ typedef struct { /* input parameters */ char *volname; /* pathname of volume */ char *dname; /* pathname of data "subvolume" */ char *logname; /* pathname of log "subvolume" */ char *rtname; /* pathname of realtime "subvolume" */ int isreadonly; /* filesystem is only read in applic */ int disfile; /* data "subvolume" is a regular file */ int dcreat; /* try to create data subvolume */ int lisfile; /* log "subvolume" is a regular file */ int lcreat; /* try to create log subvolume */ int risfile; /* realtime "subvolume" is a reg file */ int rcreat; /* try to create realtime subvolume */ char *notvolmsg; /* format string for not XLV message */ int notvolok; /* set if not XLV => try data */ int setblksize; /* attempt to set device blksize */ /* output results */ dev_t ddev; /* device for data subvolume */ dev_t logdev; /* device for log subvolume */ dev_t rtdev; /* device for realtime subvolume */ long long dsize; /* size of data subvolume (BBs) */ long long logBBsize; /* size of log subvolume (BBs) */ /* (blocks allocated for use as * log is stored in mount structure) */ long long logBBstart; /* start block of log subvolume (BBs) */ long long rtsize; /* size of realtime subvolume (BBs) */ int dbsize; /* data subvolume device blksize */ int lbsize; /* log subvolume device blksize */ int rtbsize; /* realtime subvolume device blksize */ int dfd; /* data subvolume file descriptor */ int logfd; /* log subvolume file descriptor */ int rtfd; /* realtime subvolume file descriptor */ } libxfs_init_t; #define LIBXFS_EXIT_ON_FAILURE 0x0001 /* exit the program if a call fails */ #define LIBXFS_ISREADONLY 0x0002 /* disallow all mounted filesystems */ #define LIBXFS_ISINACTIVE 0x0004 /* allow mounted only if mounted ro */ #define LIBXFS_DANGEROUSLY 0x0008 /* repairing a device mounted ro */ #define LIBXFS_EXCLUSIVELY 0x0010 /* disallow other accesses (O_EXCL) */ extern char *progname; extern int libxfs_init (libxfs_init_t *); extern int libxfs_device_to_fd (dev_t); extern dev_t libxfs_device_open (char *, int, int, int); extern void libxfs_device_zero (dev_t, xfs_daddr_t, uint); extern void libxfs_device_close (dev_t); /* check or write log footer: specify device, log size in blocks & uuid */ typedef xfs_caddr_t (libxfs_get_block_t)(xfs_caddr_t, int, void *); extern int libxfs_log_clear (dev_t, xfs_daddr_t, uint, uuid_t *, int, int, int); extern int libxfs_log_header (xfs_caddr_t, uuid_t *, int, int, int, libxfs_get_block_t *, void *); /* * Define a user-level mount structure with all we need * in order to make use of the numerous XFS_* macros. */ struct xfs_inode; typedef struct xfs_mount { xfs_sb_t m_sb; /* copy of fs superblock */ char *m_fsname; /* filesystem name */ int m_bsize; /* fs logical block size */ xfs_agnumber_t m_agfrotor; /* last ag where space found */ xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */ xfs_agnumber_t m_maxagi; /* highest inode alloc group */ uint m_rsumlevels; /* rt summary levels */ uint m_rsumsize; /* size of rt summary, bytes */ struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ struct xfs_inode *m_rsumip; /* pointer to summary inode */ struct xfs_inode *m_rootip; /* pointer to root directory */ dev_t m_dev; dev_t m_logdev; dev_t m_rtdev; __uint8_t m_dircook_elog; /* log d-cookie entry bits */ __uint8_t m_blkbit_log; /* blocklog + NBBY */ __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ __uint8_t m_sectbb_log; /* sectorlog - BBSHIFT */ __uint8_t m_agno_log; /* log #ag's */ __uint8_t m_agino_log; /* #bits for agino in inum */ __uint16_t m_inode_cluster_size;/* min inode buf size */ uint m_blockmask; /* sb_blocksize-1 */ uint m_blockwsize; /* sb_blocksize in words */ uint m_blockwmask; /* blockwsize-1 */ uint m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */ uint m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */ uint m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */ uint m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */ uint m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */ uint m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */ uint m_ag_maxlevels; /* XFS_AG_MAXLEVELS */ uint m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */ uint m_in_maxlevels; /* XFS_IN_MAXLEVELS */ xfs_perag_t *m_perag; /* per-ag accounting info */ uint m_flags; /* global mount flags */ uint m_qflags; /* quota status flags */ uint m_attroffset; /* inode attribute offset */ uint m_dir_node_ents; /* #entries in a dir danode */ uint m_attr_node_ents; /* #entries in attr danode */ int m_ialloc_inos; /* inodes in inode allocation */ int m_ialloc_blks; /* blocks in inode allocation */ int m_litino; /* size of inode union area */ int m_inoalign_mask;/* mask sb_inoalignmt if used */ xfs_trans_reservations_t m_reservations;/* precomputed res values */ __uint64_t m_maxicount; /* maximum inode count */ int m_dalign; /* stripe unit */ int m_swidth; /* stripe width */ int m_sinoalign; /* stripe unit inode alignmnt */ int m_dir_magicpct; /* 37% of the dir blocksize */ __uint8_t m_dirversion; /* 1 or 2 */ int m_dirblksize; /* directory block sz--bytes */ int m_dirblkfsbs; /* directory block sz--fsbs */ xfs_dablk_t m_dirdatablk; /* blockno of dir data v2 */ xfs_dablk_t m_dirleafblk; /* blockno of dir non-data v2 */ xfs_dablk_t m_dirfreeblk; /* blockno of dirfreeindex v2 */ } xfs_mount_t; #define LIBXFS_MOUNT_ROOTINOS 0x0001 #define LIBXFS_MOUNT_DEBUGGER 0x0002 extern xfs_mount_t *libxfs_mount (xfs_mount_t *, xfs_sb_t *, dev_t, dev_t, dev_t, int); extern void libxfs_mount_common (xfs_mount_t *, xfs_sb_t *); extern xfs_agnumber_t libxfs_initialize_perag (xfs_mount_t *, xfs_agnumber_t); extern void libxfs_umount (xfs_mount_t *); extern int libxfs_rtmount_init (xfs_mount_t *); extern void libxfs_alloc_compute_maxlevels (xfs_mount_t *); extern void libxfs_bmap_compute_maxlevels (xfs_mount_t *, int); extern void libxfs_ialloc_compute_maxlevels (xfs_mount_t *); extern void libxfs_trans_init (xfs_mount_t *); /* * Simple I/O interface */ typedef struct xfs_buf { xfs_daddr_t b_blkno; unsigned b_bcount; dev_t b_dev; void *b_fsprivate; void *b_fsprivate2; void *b_fsprivate3; char *b_addr; /* b_addr must be the last field */ } xfs_buf_t; #define XFS_BUF_PTR(bp) ((bp)->b_addr) #define xfs_buf_offset(bp, offset) (XFS_BUF_PTR(bp) + (offset)) #define XFS_BUF_ADDR(bp) ((bp)->b_blkno) #define XFS_BUF_COUNT(bp) ((bp)->b_bcount) #define XFS_BUF_TARGET(bp) ((bp)->b_dev) #define XFS_BUF_SET_PTR(bp,p,cnt) ((bp)->b_addr = (char *)(p)); \ XFS_BUF_SETCOUNT(bp,cnt) #define XFS_BUF_SET_ADDR(bp,blk) ((bp)->b_blkno = (blk)) #define XFS_BUF_SETCOUNT(bp,cnt) ((bp)->b_bcount = (cnt)) #define XFS_BUF_FSPRIVATE(bp,type) ((type)(bp)->b_fsprivate) #define XFS_BUF_SET_FSPRIVATE(bp,val) (bp)->b_fsprivate = (void *)(val) #define XFS_BUF_FSPRIVATE2(bp,type) ((type)(bp)->b_fsprivate2) #define XFS_BUF_SET_FSPRIVATE2(bp,val) (bp)->b_fsprivate2 = (void *)(val) #define XFS_BUF_FSPRIVATE3(bp,type) ((type)(bp)->b_fsprivate3) #define XFS_BUF_SET_FSPRIVATE3(bp,val) (bp)->b_fsprivate3 = (void *)(val) extern xfs_buf_t *libxfs_getbuf (dev_t, xfs_daddr_t, int); extern xfs_buf_t *libxfs_readbuf (dev_t, xfs_daddr_t, int, int); extern xfs_buf_t *libxfs_getsb (xfs_mount_t *, int); extern int libxfs_readbufr (dev_t, xfs_daddr_t, xfs_buf_t *, int, int); extern int libxfs_writebuf (xfs_buf_t *, int); extern int libxfs_writebuf_int (xfs_buf_t *, int); extern void libxfs_putbuf (xfs_buf_t *); /* * Transaction interface */ typedef struct xfs_log_item { struct xfs_log_item_desc *li_desc; /* ptr to current desc*/ struct xfs_mount *li_mountp; /* ptr to fs mount */ uint li_type; /* item type */ } xfs_log_item_t; typedef struct xfs_inode_log_item { xfs_log_item_t ili_item; /* common portion */ struct xfs_inode *ili_inode; /* inode pointer */ unsigned short ili_flags; /* misc flags */ unsigned int ili_last_fields; /* fields when flushed*/ xfs_inode_log_format_t ili_format; /* logged structure */ } xfs_inode_log_item_t; typedef struct xfs_buf_log_item { xfs_log_item_t bli_item; /* common item structure */ struct xfs_buf *bli_buf; /* real buffer pointer */ unsigned int bli_flags; /* misc flags */ unsigned int bli_recur; /* recursion count */ xfs_buf_log_format_t bli_format; /* in-log header */ } xfs_buf_log_item_t; #include <xfs/xfs_trans.h> typedef struct xfs_trans { unsigned int t_type; /* transaction type */ xfs_mount_t *t_mountp; /* ptr to fs mount struct */ unsigned int t_flags; /* misc flags */ long t_icount_delta; /* superblock icount change */ long t_ifree_delta; /* superblock ifree change */ long t_fdblocks_delta; /* superblock fdblocks chg */ long t_frextents_delta; /* superblock freextents chg */ unsigned int t_items_free; /* log item descs free */ xfs_log_item_chunk_t t_items; /* first log item desc chunk */ } xfs_trans_t; extern xfs_trans_t *libxfs_trans_alloc (xfs_mount_t *, int); extern xfs_trans_t *libxfs_trans_dup (xfs_trans_t *); extern int libxfs_trans_reserve (xfs_trans_t *, uint,uint,uint,uint,uint); extern int libxfs_trans_commit (xfs_trans_t *, uint, xfs_lsn_t *); extern void libxfs_trans_cancel (xfs_trans_t *, int); extern void libxfs_mod_sb (xfs_trans_t *, __int64_t); extern int libxfs_trans_iget (xfs_mount_t *, xfs_trans_t *, xfs_ino_t, uint, struct xfs_inode **); extern void libxfs_trans_iput(xfs_trans_t *, struct xfs_inode *, uint); extern void libxfs_trans_ijoin (xfs_trans_t *, struct xfs_inode *, uint); extern void libxfs_trans_ihold (xfs_trans_t *, struct xfs_inode *); extern void libxfs_trans_log_inode (xfs_trans_t *, struct xfs_inode *, uint); extern void libxfs_trans_brelse (xfs_trans_t *, struct xfs_buf *); extern void libxfs_trans_binval (xfs_trans_t *, struct xfs_buf *); extern void libxfs_trans_bjoin (xfs_trans_t *, struct xfs_buf *); extern void libxfs_trans_bhold (xfs_trans_t *, struct xfs_buf *); extern void libxfs_trans_log_buf (xfs_trans_t *, struct xfs_buf *, uint, uint); extern xfs_buf_t *libxfs_trans_get_buf (xfs_trans_t *, dev_t, xfs_daddr_t, int, uint); extern int libxfs_trans_read_buf (xfs_mount_t *, xfs_trans_t *, dev_t, xfs_daddr_t, int, uint, struct xfs_buf **); /* * Simple memory interface */ typedef struct xfs_zone { int zone_unitsize; /* Size in bytes of zone unit */ char *zone_name; /* tag name */ int allocated; /* debug: How many currently allocated */ } xfs_zone_t; extern xfs_zone_t *libxfs_zone_init (int, char *); extern void *libxfs_zone_zalloc (xfs_zone_t *); extern void libxfs_zone_free (xfs_zone_t *, void *); extern void *libxfs_malloc (size_t); extern void libxfs_free (void *); extern void *libxfs_realloc (void *, size_t); /* * Inode interface */ struct xfs_inode_log_item; typedef struct xfs_inode { xfs_mount_t *i_mount; /* fs mount struct ptr */ xfs_ino_t i_ino; /* inode number (agno/agino) */ xfs_daddr_t i_blkno; /* blkno of inode buffer */ dev_t i_dev; /* dev for this inode */ ushort i_len; /* len of inode buffer */ ushort i_boffset; /* off of inode in buffer */ xfs_ifork_t *i_afp; /* attribute fork pointer */ xfs_ifork_t i_df; /* data fork */ struct xfs_trans *i_transp; /* ptr to owning transaction */ struct xfs_inode_log_item *i_itemp; /* logging information */ unsigned int i_delayed_blks; /* count of delay alloc blks */ xfs_dinode_core_t i_d; /* most of ondisk inode */ } xfs_inode_t; typedef struct { uid_t cr_uid; gid_t cr_gid; } cred_t; extern int libxfs_inode_alloc (xfs_trans_t **, xfs_inode_t *, mode_t, ushort, xfs_dev_t, cred_t *, xfs_inode_t **); extern void libxfs_trans_inode_alloc_buf (xfs_trans_t *, xfs_buf_t *); extern void libxfs_idata_realloc (xfs_inode_t *, int, int); extern void libxfs_idestroy_fork (xfs_inode_t *, int); extern int libxfs_iread (xfs_mount_t *, xfs_trans_t *, xfs_ino_t, xfs_inode_t **, xfs_daddr_t); extern void libxfs_ichgtime (xfs_inode_t *, int); extern int libxfs_iflush_int (xfs_inode_t *, xfs_buf_t *); extern int libxfs_itobp (xfs_mount_t *, xfs_trans_t *, xfs_inode_t *, xfs_dinode_t **, xfs_buf_t **, xfs_daddr_t); extern int libxfs_iget (xfs_mount_t *, xfs_trans_t *, xfs_ino_t, uint, xfs_inode_t **, xfs_daddr_t); extern void libxfs_iput (xfs_inode_t *, uint); /* * Directory interface */ extern void libxfs_dir_mount (xfs_mount_t *); extern void libxfs_dir2_mount (xfs_mount_t *); extern int libxfs_dir_init (xfs_trans_t *, xfs_inode_t *, xfs_inode_t *); extern int libxfs_dir2_init (xfs_trans_t *, xfs_inode_t *, xfs_inode_t *); extern int libxfs_dir_createname (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t); extern int libxfs_dir2_createname (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t); extern int libxfs_dir_lookup (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t *); extern int libxfs_dir2_lookup (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t *); extern int libxfs_dir_replace (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t); extern int libxfs_dir2_replace (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t); extern int libxfs_dir_removename (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t); extern int libxfs_dir2_removename (xfs_trans_t *, xfs_inode_t *, char *, int, xfs_ino_t, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t); extern int libxfs_dir_bogus_removename (xfs_trans_t *, xfs_inode_t *, char *, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t, xfs_dahash_t, int); extern int libxfs_dir2_bogus_removename (xfs_trans_t *, xfs_inode_t *, char *, xfs_fsblock_t *, xfs_bmap_free_t *, xfs_extlen_t, xfs_dahash_t, int); /* * Block map interface */ extern int libxfs_bmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t, xfs_filblks_t, int, xfs_fsblock_t *, xfs_extlen_t, xfs_bmbt_irec_t *, int *, xfs_bmap_free_t *); extern int libxfs_bmap_finish (xfs_trans_t **, xfs_bmap_free_t *, xfs_fsblock_t, int *); extern int libxfs_bmap_next_offset (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t *, int); extern int libxfs_bunmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t, xfs_filblks_t, int, xfs_extnum_t, xfs_fsblock_t *, xfs_bmap_free_t *, int *); extern void libxfs_bmap_del_free (xfs_bmap_free_t *, xfs_bmap_free_item_t *, xfs_bmap_free_item_t *); /* * All other routines we want to keep common... */ extern int libxfs_highbit32 (__uint32_t); extern int libxfs_highbit64 (__uint64_t); extern uint libxfs_da_log2_roundup (uint); extern void libxfs_xlate_sb (void *, xfs_sb_t *, int, xfs_arch_t, __int64_t); extern void libxfs_xlate_dinode_core (xfs_caddr_t buf, xfs_dinode_core_t *, int, xfs_arch_t); extern int libxfs_alloc_fix_freelist (xfs_alloc_arg_t *, int); extern int libxfs_alloc_file_space (xfs_inode_t *, xfs_off_t, xfs_off_t, int, int); extern xfs_dahash_t libxfs_da_hashname (uchar_t *, int); extern int libxfs_attr_leaf_newentsize (xfs_da_args_t *, int, int *); extern void libxfs_bmbt_get_all (xfs_bmbt_rec_t *, xfs_bmbt_irec_t *); #if ARCH_CONVERT != ARCH_NOCONVERT extern void libxfs_bmbt_disk_get_all (xfs_bmbt_rec_t *, xfs_bmbt_irec_t *); #else # define libxfs_bmbt_disk_get_all(r,s) libxfs_bmbt_get_all(r,s) #endif extern int libxfs_free_extent (xfs_trans_t *, xfs_fsblock_t, xfs_extlen_t); extern int libxfs_rtfree_extent (xfs_trans_t *, xfs_rtblock_t, xfs_extlen_t); /* Directory/Attribute routines used by xfs_repair */ extern void libxfs_da_bjoin (xfs_trans_t *, xfs_dabuf_t *); extern int libxfs_da_shrink_inode (xfs_da_args_t *, xfs_dablk_t, xfs_dabuf_t *); extern int libxfs_da_grow_inode (xfs_da_args_t *, xfs_dablk_t *); extern void libxfs_da_bhold (xfs_trans_t *, xfs_dabuf_t *); extern void libxfs_da_brelse (xfs_trans_t *, xfs_dabuf_t *); extern int libxfs_da_read_bufr (xfs_trans_t *, xfs_inode_t *, xfs_dablk_t, xfs_daddr_t, xfs_dabuf_t **, int); extern int libxfs_da_read_buf (xfs_trans_t *, xfs_inode_t *, xfs_dablk_t, xfs_daddr_t, xfs_dabuf_t **, int); extern int libxfs_da_get_buf (xfs_trans_t *, xfs_inode_t *, xfs_dablk_t, xfs_daddr_t, xfs_dabuf_t **, int); extern void libxfs_da_log_buf (xfs_trans_t *, xfs_dabuf_t *, uint, uint); extern int libxfs_dir2_shrink_inode (xfs_da_args_t *, xfs_dir2_db_t, xfs_dabuf_t *); extern int libxfs_dir2_grow_inode (xfs_da_args_t *, int, xfs_dir2_db_t *); extern int libxfs_dir2_isleaf (xfs_trans_t *, xfs_inode_t *, int *); extern int libxfs_dir2_isblock (xfs_trans_t *, xfs_inode_t *, int *); extern void libxfs_dir2_data_use_free (xfs_trans_t *, xfs_dabuf_t *, xfs_dir2_data_unused_t *, xfs_dir2_data_aoff_t, xfs_dir2_data_aoff_t, int *, int *); extern void libxfs_dir2_data_make_free (xfs_trans_t *, xfs_dabuf_t *, xfs_dir2_data_aoff_t, xfs_dir2_data_aoff_t, int *, int *); extern void libxfs_dir2_data_log_entry (xfs_trans_t *, xfs_dabuf_t *, xfs_dir2_data_entry_t *); extern void libxfs_dir2_data_log_header (xfs_trans_t *, xfs_dabuf_t *); extern void libxfs_dir2_data_freescan (xfs_mount_t *, xfs_dir2_data_t *, int *, char *); extern void libxfs_dir2_free_log_bests (xfs_trans_t *, xfs_dabuf_t *, int, int); /* Shared utility routines */ extern unsigned int libxfs_log2_roundup(unsigned int i); #endif /* __LIBXFS_H__ */