[thirdparty/xfsprogs-dev.git] / libxfs / xfs.h

/*
 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * 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.  See the
 * GNU General Public License for more details.
 *
 * 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
 */

/*
 * This header is effectively a "namespace multiplexor" for the
 * user level XFS code.  It provides all of the necessary stuff
 * such that we can build some parts of the XFS kernel code in
 * user space in a controlled fashion, and translates the names
 * used in the kernel into the names which libxfs is going to
 * make available to user tools.
 *
 * It should only ever be #include'd by XFS "kernel" code being
 * compiled in user space.
 *
 * Our goals here are to...
 *      o  "share" large amounts of complex code between user and
 *         kernel space;
 *      o  shield the user tools from changes in the bleeding
 *         edge kernel code, merging source changes when
 *         convenient and not immediately (no symlinks);
 *      o  i.e. be able to merge changes to the kernel source back
 *         into the affected user tools in a controlled fashion;
 *      o  provide a _minimalist_ life-support system for kernel
 *         code in user land, not the "everything + the kitchen
 *         sink" model which libsim had mutated into;
 *      o  allow the kernel code to be completely free of code
 *         specifically there to support the user level build.
 */

/*
 * define a guard and something we can check to determine what include context
 * we are running from.
 */
#ifndef __LIBXFS_INTERNAL_XFS_H
#define __LIBXFS_INTERNAL_XFS_H

/*
 * start by remapping all the symbols we expect external users to call
 * to the libxfs_ namespace. This ensures that all internal symbols are
 * remapped correctly throughout all the included header files
 * as well as in the C code.
 */
#define xfs_alloc_fix_freelist		libxfs_alloc_fix_freelist
#define xfs_attr_get			libxfs_attr_get
#define xfs_attr_set			libxfs_attr_set
#define xfs_attr_remove			libxfs_attr_remove
#define xfs_rtfree_extent		libxfs_rtfree_extent

#define xfs_fs_repair_cmn_err		libxfs_fs_repair_cmn_err
#define xfs_fs_cmn_err			libxfs_fs_cmn_err

#define xfs_bmap_finish			libxfs_bmap_finish
#define xfs_trans_ichgtime		libxfs_trans_ichgtime
#define xfs_mod_incore_sb		libxfs_mod_incore_sb

#define xfs_trans_alloc			libxfs_trans_alloc
#define xfs_trans_add_item		libxfs_trans_add_item
#define xfs_trans_bhold			libxfs_trans_bhold
#define xfs_trans_binval		libxfs_trans_binval
#define xfs_trans_bjoin			libxfs_trans_bjoin
#define xfs_trans_brelse		libxfs_trans_brelse
#define xfs_trans_commit		libxfs_trans_commit
#define xfs_trans_cancel		libxfs_trans_cancel
#define xfs_trans_del_item		libxfs_trans_del_item
#define xfs_trans_dup			libxfs_trans_dup
#define xfs_trans_get_buf		libxfs_trans_get_buf
#define xfs_trans_getsb			libxfs_trans_getsb
#define xfs_trans_iget			libxfs_trans_iget
#define xfs_trans_ijoin			libxfs_trans_ijoin
#define xfs_trans_ijoin_ref		libxfs_trans_ijoin_ref
#define xfs_trans_init			libxfs_trans_init
#define xfs_trans_inode_alloc_buf	libxfs_trans_inode_alloc_buf
#define xfs_trans_log_buf		libxfs_trans_log_buf
#define xfs_trans_log_inode		libxfs_trans_log_inode
#define xfs_trans_mod_sb		libxfs_trans_mod_sb
#define xfs_trans_read_buf		libxfs_trans_read_buf
#define xfs_trans_read_buf_map		libxfs_trans_read_buf_map
#define xfs_trans_roll			libxfs_trans_roll
#define xfs_trans_get_buf_map		libxfs_trans_get_buf_map
#define xfs_trans_reserve		libxfs_trans_reserve

/* xfs_attr_leaf.h */
#define xfs_attr_leaf_newentsize	libxfs_attr_leaf_newentsize

/* xfs_bit.h */
#define xfs_highbit32			libxfs_highbit32
#define xfs_highbit64			libxfs_highbit64

/* xfs_bmap.h */
#define xfs_bmap_cancel			libxfs_bmap_cancel
#define xfs_bmap_last_offset		libxfs_bmap_last_offset
#define xfs_bmapi_write			libxfs_bmapi_write
#define xfs_bmapi_read			libxfs_bmapi_read
#define xfs_bunmapi			libxfs_bunmapi

/* xfs_bmap_btree.h */
#define xfs_bmbt_get_all		libxfs_bmbt_get_all

/* xfs_da_btree.h */
#define xfs_da_brelse			libxfs_da_brelse
#define xfs_da_hashname			libxfs_da_hashname
#define xfs_da_shrink_inode		libxfs_da_shrink_inode
#define xfs_da_read_buf			libxfs_da_read_buf

/* xfs_dir2.h */
#define xfs_dir_createname		libxfs_dir_createname
#define xfs_dir_init			libxfs_dir_init
#define xfs_dir_lookup			libxfs_dir_lookup
#define xfs_dir_replace			libxfs_dir_replace
#define xfs_dir2_isblock		libxfs_dir2_isblock
#define xfs_dir2_isleaf			libxfs_dir2_isleaf

/* xfs_dir2_data.h */
#define xfs_dir2_data_freescan		libxfs_dir2_data_freescan
#define xfs_dir2_data_log_entry		libxfs_dir2_data_log_entry
#define xfs_dir2_data_log_header	libxfs_dir2_data_log_header
#define xfs_dir2_data_make_free		libxfs_dir2_data_make_free
#define xfs_dir2_data_use_free		libxfs_dir2_data_use_free
#define xfs_dir2_shrink_inode		libxfs_dir2_shrink_inode

/* xfs_inode.h */
#define xfs_dinode_from_disk		libxfs_dinode_from_disk
#define xfs_dinode_to_disk		libxfs_dinode_to_disk
#define xfs_dinode_calc_crc		libxfs_dinode_calc_crc
#define xfs_idata_realloc		libxfs_idata_realloc
#define xfs_idestroy_fork		libxfs_idestroy_fork

#define xfs_dinode_verify		libxfs_dinode_verify

/* xfs_sb.h */
#define xfs_mod_sb			libxfs_mod_sb
#define xfs_sb_from_disk		libxfs_sb_from_disk
#define xfs_sb_quota_from_disk		libxfs_sb_quota_from_disk
#define xfs_sb_to_disk			libxfs_sb_to_disk

/* xfs_symlink.h */
#define xfs_symlink_blocks		libxfs_symlink_blocks
#define xfs_symlink_hdr_ok		libxfs_symlink_hdr_ok

/* xfs_trans_resv.h */
#define xfs_trans_resv_calc		libxfs_trans_resv_calc


/*
 * Now we've renamed and mapped everything, include the rest of the external
 * libxfs headers.
 */
#include <xfs/libxfs.h>
#include "xfs_dir2_priv.h"

#undef ASSERT
#define ASSERT(ex) assert(ex)

typedef __uint32_t		uint_t;
typedef __uint32_t		inst_t;		/* an instruction */

/*
 * Argument structure for xfs_bmap_alloc.
 */
typedef struct xfs_bmalloca {
	xfs_fsblock_t		*firstblock; /* i/o first block allocated */
	struct xfs_bmap_free    *flist;	/* bmap freelist */
	struct xfs_trans        *tp;	/* transaction pointer */
	struct xfs_inode        *ip;	/* incore inode pointer */
	struct xfs_bmbt_irec    prev;	/* extent before the new one */
	struct xfs_bmbt_irec    got;	/* extent after, or delayed */

	xfs_fileoff_t		offset;	/* offset in file filling in */
	xfs_extlen_t		length;	/* i/o length asked/allocated */
	xfs_fsblock_t		blkno;	/* starting block of new extent */

	struct xfs_btree_cur    *cur;	/* btree cursor */
	xfs_extnum_t		idx;	/* current extent index */
	int			nallocs;/* number of extents alloc'd */
	int			logflags;/* flags for transaction logging */

	xfs_extlen_t		total;	/* total blocks needed for xaction */
	xfs_extlen_t		minlen;	/* minimum allocation size (blocks) */
	xfs_extlen_t		minleft; /* amount must be left after alloc */
	char			eof;	/* set if allocating past last extent */
	char			wasdel;	/* replacing a delayed allocation */
	char			userdata;/* set if is user data */
	char			aeof;	/* allocated space at eof */
	char			conv;	/* overwriting unwritten extents */
	char			stack_switch;
	int			flags;
} xfs_bmalloca_t;

#define xfs_bmapi_allocate		__xfs_bmapi_allocate

#ifndef EWRONGFS
#define EWRONGFS	EINVAL
#endif

#define xfs_error_level			0

#define STATIC				static

#define ATTR_ROOT			LIBXFS_ATTR_ROOT
#define ATTR_SECURE			LIBXFS_ATTR_SECURE
#define ATTR_CREATE			LIBXFS_ATTR_CREATE
#define ATTR_REPLACE			LIBXFS_ATTR_REPLACE
#define ATTR_KERNOTIME			0
#define ATTR_KERNOVAL			0

#define IHOLD(ip)			((void) 0)

#define XFS_IGET_CREATE			0x1
#define XFS_IGET_UNTRUSTED		0x2

/* stop unused var warnings by assigning mp to itself */
#define XFS_CORRUPTION_ERROR(e,l,mp,m)	do { \
	(mp) = (mp); \
	cmn_err(CE_ALERT, "%s: XFS_CORRUPTION_ERROR", (e));  \
} while (0)

#define XFS_ERROR_REPORT(e,l,mp)	do { \
	(mp) = (mp); \
	cmn_err(CE_ALERT, "%s: XFS_ERROR_REPORT", (e));  \
} while (0)

#define XFS_QM_DQATTACH(mp,ip,flags)	0
#define XFS_ERRLEVEL_LOW		1
#define XFS_FORCED_SHUTDOWN(mp)		0
#define XFS_ILOCK_EXCL			0
#define XFS_STATS_INC(count)		do { } while (0)
#define XFS_STATS_DEC(count, x)		do { } while (0)
#define XFS_STATS_ADD(count, x)		do { } while (0)
#define XFS_TRANS_MOD_DQUOT_BYINO(mp,tp,ip,field,delta)	do { } while (0)
#define XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl)	0
#define XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl)	0
#define XFS_TEST_ERROR(expr,a,b,c)	( expr )
#define XFS_WANT_CORRUPTED_GOTO(expr,l)	\
		{ if (!(expr)) { error = EFSCORRUPTED; goto l; } }
#define XFS_WANT_CORRUPTED_RETURN(expr)	\
		{ if (!(expr)) { return EFSCORRUPTED; } }

#ifdef __GNUC__
#define __return_address	__builtin_return_address(0)
#endif

#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1

/* miscellaneous kernel routines not in user space */
#define down_read(a)		((void) 0)
#define up_read(a)		((void) 0)
#define spin_lock_init(a)	((void) 0)
#define spin_lock(a)		((void) 0)
#define spin_unlock(a)		((void) 0)
#define likely(x)		(x)
#define unlikely(x)		(x)
#define rcu_read_lock()		((void) 0)
#define rcu_read_unlock()	((void) 0)

/*
 * prandom_u32 is used for di_gen inode allocation, it must be zero for libxfs
 * or all sorts of badness can occur!
 */
#define prandom_u32()		0

#define PAGE_CACHE_SIZE 	getpagesize()

static inline int __do_div(unsigned long long *n, unsigned base)
{
	int __res;
	__res = (int)(((unsigned long) *n) % (unsigned) base);
	*n = ((unsigned long) *n) / (unsigned) base;
	return __res;
}

#define do_div(n,base)	(__do_div((unsigned long long *)&(n), (base)))
#define do_mod(a, b)		((a) % (b))
#define rol32(x,y)		(((x) << (y)) | ((x) >> (32 - (y))))

#define min_t(type,x,y) \
	({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
#define max_t(type,x,y) \
	({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })


static inline __attribute__((const))
int is_power_of_2(unsigned long n)
{
	return (n != 0 && ((n & (n - 1)) == 0));
}

/*
 * xfs_iroundup: round up argument to next power of two
 */
static inline uint
roundup_pow_of_two(uint v)
{
	int	i;
	uint	m;

	if ((v & (v - 1)) == 0)
		return v;
	ASSERT((v & 0x80000000) == 0);
	if ((v & (v + 1)) == 0)
		return v + 1;
	for (i = 0, m = 1; i < 31; i++, m <<= 1) {
		if (v & m)
			continue;
		v |= m;
		if ((v & (v + 1)) == 0)
			return v + 1;
	}
	ASSERT(0);
	return 0;
}

static inline __uint64_t
roundup_64(__uint64_t x, __uint32_t y)
{
	x += y - 1;
	do_div(x, y);
	return x * y;
}

/* buffer management */
#define XFS_BUF_LOCK			0
#define XFS_BUF_TRYLOCK			0
#define XBF_LOCK			XFS_BUF_LOCK
#define XBF_TRYLOCK			XFS_BUF_TRYLOCK
#define XBF_DONT_BLOCK			0
#define XBF_UNMAPPED			0
#define XBF_DONE			0
#define XFS_BUF_GETERROR(bp)		0
#define XFS_BUF_DONE(bp)		((bp)->b_flags |= LIBXFS_B_UPTODATE)
#define XFS_BUF_ISDONE(bp)		((bp)->b_flags & LIBXFS_B_UPTODATE)
#define xfs_buf_stale(bp)		((bp)->b_flags |= LIBXFS_B_STALE)
#define XFS_BUF_UNDELAYWRITE(bp)	((bp)->b_flags &= ~LIBXFS_B_DIRTY)
#define XFS_BUF_SET_VTYPE(a,b)		((void) 0)
#define XFS_BUF_SET_VTYPE_REF(a,b,c)	((void) 0)
#define XFS_BUF_SET_BDSTRAT_FUNC(a,b)	((void) 0)

/* avoid gcc warning */
#define xfs_incore(bt,blkno,len,lockit)	({		\
	typeof(blkno) __foo = (blkno);			\
	typeof(len) __bar = (len);			\
	(blkno) = __foo;				\
	(len) = __bar; /* no set-but-unused warning */	\
	NULL;						\
})
#define xfs_buf_relse(bp)		libxfs_putbuf(bp)
#define xfs_buf_get(devp,blkno,len,f)	(libxfs_getbuf((devp), (blkno), (len)))
#define xfs_bwrite(bp)			libxfs_writebuf((bp), 0)
#define xfs_buf_delwri_queue(bp, bl)	libxfs_writebuf((bp), 0)

#define XBRW_READ			LIBXFS_BREAD
#define XBRW_WRITE			LIBXFS_BWRITE
#define xfs_buf_iomove(bp,off,len,data,f)	libxfs_iomove(bp,off,len,data,f)
#define xfs_buf_zero(bp,off,len)	libxfs_iomove(bp,off,len,0,LIBXFS_BZERO)

/* mount stuff */
#define XFS_MOUNT_32BITINODES		LIBXFS_MOUNT_32BITINODES
#define XFS_MOUNT_ATTR2			LIBXFS_MOUNT_ATTR2
#define XFS_MOUNT_SMALL_INUMS		0	/* ignored in userspace */
#define XFS_MOUNT_WSYNC			0	/* ignored in userspace */
#define XFS_MOUNT_NOALIGN		0	/* ignored in userspace */
#define XFS_MOUNT_IKEEP			0	/* ignored in userspace */
#define XFS_MOUNT_SWALLOC		0	/* ignored in userspace */
#define XFS_MOUNT_RDONLY		0	/* ignored in userspace */

#define xfs_icsb_modify_counters(mp, field, delta, rsvd) \
	xfs_mod_incore_sb(mp, field, delta, rsvd)


#define xfs_trans_get_block_res(tp)	1
#define xfs_trans_set_sync(tp)		((void) 0)
#define xfs_trans_ordered_buf(tp, bp)	((void) 0)
#define	xfs_trans_agblocks_delta(tp, d)
#define	xfs_trans_agflist_delta(tp, d)
#define	xfs_trans_agbtree_delta(tp, d)
#define xfs_trans_buf_set_type(tp, bp, t)	({	\
	int __t = (t);					\
	__t = __t; /* no set-but-unused warning */	\
})

#define xfs_trans_buf_copy_type(dbp, sbp)

/* no readahead, need to avoid set-but-unused var warnings. */
#define xfs_buf_readahead(a,d,c,ops)		({	\
	xfs_daddr_t __d = d;				\
	__d = __d; /* no set-but-unused warning */	\
})
#define xfs_buf_readahead_map(a,b,c,ops)	((void) 0)	/* no readahead */
#define xfs_buftrace(x,y)			((void) 0)	/* debug only */

#define xfs_cmn_err(tag,level,mp,fmt,args...)	cmn_err(level,fmt, ## args)
#define xfs_warn(mp,fmt,args...)		cmn_err(CE_WARN,fmt, ## args)
#define xfs_alert(mp,fmt,args...)		cmn_err(CE_ALERT,fmt, ## args)
#define xfs_alert_tag(mp,tag,fmt,args...)	cmn_err(CE_ALERT,fmt, ## args)

#define xfs_dir2_trace_args(where, args)		((void) 0)
#define xfs_dir2_trace_args_b(where, args, bp)		((void) 0)
#define xfs_dir2_trace_args_bb(where, args, lbp, dbp)	((void) 0)
#define xfs_dir2_trace_args_bibii(where, args, bs, ss, bd, sd, c) ((void) 0)
#define xfs_dir2_trace_args_db(where, args, db, bp)	((void) 0)
#define xfs_dir2_trace_args_i(where, args, i)		((void) 0)
#define xfs_dir2_trace_args_s(where, args, s)		((void) 0)
#define xfs_dir2_trace_args_sb(where, args, s, bp)	((void) 0)
#define xfs_sort					qsort

#define xfs_icsb_reinit_counters(mp)			do { } while (0)
#define xfs_initialize_perag_icache(pag)		((void) 0)

#define xfs_ilock(ip,mode)				((void) 0)
#define xfs_ilock_nowait(ip,mode)			((void) 0)
#define xfs_ilock_demote(ip,mode)			((void) 0)
#define xfs_ilock_data_map_shared(ip)			(0)
#define xfs_ilock_attr_map_shared(ip)			(0)
#define xfs_iunlock(ip,mode)				({	\
	typeof(mode) __mode = mode;				\
	__mode = __mode; /* no set-but-unused warning */	\
})
#define __xfs_flock(ip)					((void) 0)

/* space allocation */
#define xfs_extent_busy_reuse(mp,ag,bno,len,user)	((void) 0)
#define xfs_extent_busy_insert(tp,ag,bno,len,flags)	((void) 0)
#define xfs_extent_busy_trim(args,fbno,flen,bno,len) \
do { \
	*(bno) = (fbno); \
	*(len) = (flen); \
} while (0)

/* avoid unused variable warning */
#define xfs_alloc_busy_insert(tp,ag,b,len)	({	\
	xfs_agnumber_t __foo = ag;			\
	__foo = 0;					\
})

#define xfs_rotorstep				1
#define xfs_bmap_rtalloc(a)			(ENOSYS)
#define xfs_rtpick_extent(mp,tp,len,p)		(ENOSYS)
#define xfs_get_extsz_hint(ip)			(0)
#define xfs_inode_is_filestream(ip)		(0)
#define xfs_filestream_lookup_ag(ip)		(0)
#define xfs_filestream_new_ag(ip,ag)		(0)

#define xfs_log_force(mp,flags)			((void) 0)
#define XFS_LOG_SYNC				1

/* quota bits */
#define xfs_trans_mod_dquot_byino(t,i,f,d)		((void) 0)
#define xfs_trans_reserve_quota_nblks(t,i,b,n,f)	(0)
#define xfs_trans_unreserve_quota_nblks(t,i,b,n,f)	((void) 0)
#define xfs_qm_dqattach(i,f)				(0)

#define uuid_copy(s,d)		platform_uuid_copy((s),(d))
#define uuid_equal(s,d)		(platform_uuid_compare((s),(d)) == 0)

#define xfs_icreate_log(tp, agno, agbno, cnt, isize, len, gen) ((void) 0)
#define xfs_sb_validate_fsb_count(sbp, nblks)		(0)

/*
 * Prototypes for kernel static functions that are aren't in their
 * associated header files
 */

/* xfs_attr.c */
int xfs_attr_rmtval_get(struct xfs_da_args *);

/* xfs_bmap.c */
void xfs_bmap_del_free(xfs_bmap_free_t *, xfs_bmap_free_item_t *,
			xfs_bmap_free_item_t *);

/*
 * For regular files we only update the on-disk filesize when actually
 * writing data back to disk.  Until then only the copy in the VFS inode
 * is uptodate.
 */
static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
{
	if (S_ISREG(ip->i_d.di_mode))
		return ip->i_size;
	return ip->i_d.di_size;
}
#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)

/* xfs_mount.c */
int xfs_initialize_perag_data(xfs_mount_t *, xfs_agnumber_t);
void xfs_mount_common(xfs_mount_t *, xfs_sb_t *);

/*
 * logitem.c and trans.c prototypes
 */
void xfs_trans_init(struct xfs_mount *);
int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);

/* xfs_trans_item.c */
void xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *);
void xfs_trans_del_item(struct xfs_log_item *);
void xfs_trans_free_items(struct xfs_trans *, int);

/* xfs_inode_item.c */
void xfs_inode_item_init (xfs_inode_t *, xfs_mount_t *);

/* xfs_buf_item.c */
void xfs_buf_item_init (xfs_buf_t *, xfs_mount_t *);
void xfs_buf_item_log (xfs_buf_log_item_t *, uint, uint);

/* xfs_trans_buf.c */
xfs_buf_t *xfs_trans_buf_item_match(xfs_trans_t *, struct xfs_buftarg *,
			struct xfs_buf_map *, int);

/* local source files */
int  xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
void xfs_trans_mod_sb(xfs_trans_t *, uint, long);
void xfs_trans_init(struct xfs_mount *);
int  xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
void xfs_verifier_error(struct xfs_buf *bp);

#endif	/* __LIBXFS_INTERNAL_XFS_H */
Commit	Line	Data
2bd0ea18	1	/*
da23017d NS	2	* Copyright (c) 2000-2005 Silicon Graphics, Inc.
da23017d NS	3	* All Rights Reserved.
2bd0ea18	4	*
da23017d NS	5	* This program is free software; you can redistribute it and/or
da23017d NS	6	* modify it under the terms of the GNU General Public License as
2bd0ea18 NS	7	* published by the Free Software Foundation.
2bd0ea18 NS	8	*
da23017d NS	9	* This program is distributed in the hope that it would be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
2bd0ea18	13	*
da23017d NS	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write the Free Software Foundation,
	16	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
2bd0ea18 NS	17	*/
	18
	19	/*
	20	* This header is effectively a "namespace multiplexor" for the
	21	* user level XFS code. It provides all of the necessary stuff
	22	* such that we can build some parts of the XFS kernel code in
	23	* user space in a controlled fashion, and translates the names
	24	* used in the kernel into the names which libxfs is going to
	25	* make available to user tools.
	26	*
	27	* It should only ever be #include'd by XFS "kernel" code being
	28	* compiled in user space.
dfc130f3	29	*
2bd0ea18 NS	30	* Our goals here are to...
	31	* o "share" large amounts of complex code between user and
	32	* kernel space;
	33	* o shield the user tools from changes in the bleeding
	34	* edge kernel code, merging source changes when
	35	* convenient and not immediately (no symlinks);
	36	* o i.e. be able to merge changes to the kernel source back
	37	* into the affected user tools in a controlled fashion;
	38	* o provide a _minimalist_ life-support system for kernel
	39	* code in user land, not the "everything + the kitchen
	40	* sink" model which libsim had mutated into;
	41	* o allow the kernel code to be completely free of code
	42	* specifically there to support the user level build.
	43	*/
	44
f616e2bf DC	45	/*
	46	* define a guard and something we can check to determine what include context
	47	* we are running from.
	48	*/
	49	#ifndef __LIBXFS_INTERNAL_XFS_H
	50	#define __LIBXFS_INTERNAL_XFS_H
	51
	52	/*
	53	* start by remapping all the symbols we expect external users to call
	54	* to the libxfs_ namespace. This ensures that all internal symbols are
	55	* remapped correctly throughout all the included header files
	56	* as well as in the C code.
	57	*/
	58	#define xfs_alloc_fix_freelist libxfs_alloc_fix_freelist
	59	#define xfs_attr_get libxfs_attr_get
	60	#define xfs_attr_set libxfs_attr_set
	61	#define xfs_attr_remove libxfs_attr_remove
	62	#define xfs_rtfree_extent libxfs_rtfree_extent
	63
	64	#define xfs_fs_repair_cmn_err libxfs_fs_repair_cmn_err
	65	#define xfs_fs_cmn_err libxfs_fs_cmn_err
	66
	67	#define xfs_bmap_finish libxfs_bmap_finish
	68	#define xfs_trans_ichgtime libxfs_trans_ichgtime
	69	#define xfs_mod_incore_sb libxfs_mod_incore_sb
	70
	71	#define xfs_trans_alloc libxfs_trans_alloc
	72	#define xfs_trans_add_item libxfs_trans_add_item
	73	#define xfs_trans_bhold libxfs_trans_bhold
	74	#define xfs_trans_binval libxfs_trans_binval
	75	#define xfs_trans_bjoin libxfs_trans_bjoin
	76	#define xfs_trans_brelse libxfs_trans_brelse
	77	#define xfs_trans_commit libxfs_trans_commit
	78	#define xfs_trans_cancel libxfs_trans_cancel
	79	#define xfs_trans_del_item libxfs_trans_del_item
	80	#define xfs_trans_dup libxfs_trans_dup
	81	#define xfs_trans_get_buf libxfs_trans_get_buf
	82	#define xfs_trans_getsb libxfs_trans_getsb
	83	#define xfs_trans_iget libxfs_trans_iget
	84	#define xfs_trans_ijoin libxfs_trans_ijoin
	85	#define xfs_trans_ijoin_ref libxfs_trans_ijoin_ref
	86	#define xfs_trans_init libxfs_trans_init
	87	#define xfs_trans_inode_alloc_buf libxfs_trans_inode_alloc_buf
	88	#define xfs_trans_log_buf libxfs_trans_log_buf
	89	#define xfs_trans_log_inode libxfs_trans_log_inode
	90	#define xfs_trans_mod_sb libxfs_trans_mod_sb
	91	#define xfs_trans_read_buf libxfs_trans_read_buf
	92	#define xfs_trans_read_buf_map libxfs_trans_read_buf_map
	93	#define xfs_trans_roll libxfs_trans_roll
	94	#define xfs_trans_get_buf_map libxfs_trans_get_buf_map
	95	#define xfs_trans_reserve libxfs_trans_reserve
	96
	97	/* xfs_attr_leaf.h */
	98	#define xfs_attr_leaf_newentsize libxfs_attr_leaf_newentsize
	99
	100	/* xfs_bit.h */
	101	#define xfs_highbit32 libxfs_highbit32
	102	#define xfs_highbit64 libxfs_highbit64
	103
	104	/* xfs_bmap.h */
	105	#define xfs_bmap_cancel libxfs_bmap_cancel
	106	#define xfs_bmap_last_offset libxfs_bmap_last_offset
	107	#define xfs_bmapi_write libxfs_bmapi_write
	108	#define xfs_bmapi_read libxfs_bmapi_read
109	#define xfs_bunmapi libxfs_bunmapi
110
111	/* xfs_bmap_btree.h */
ff105f75	112	#define xfs_bmbt_get_all libxfs_bmbt_get_all
f616e2bf DC	113
	114	/* xfs_da_btree.h */
	115	#define xfs_da_brelse libxfs_da_brelse
	116	#define xfs_da_hashname libxfs_da_hashname
	117	#define xfs_da_shrink_inode libxfs_da_shrink_inode
	118	#define xfs_da_read_buf libxfs_da_read_buf
	119
	120	/* xfs_dir2.h */
	121	#define xfs_dir_createname libxfs_dir_createname
	122	#define xfs_dir_init libxfs_dir_init
	123	#define xfs_dir_lookup libxfs_dir_lookup
	124	#define xfs_dir_replace libxfs_dir_replace
	125	#define xfs_dir2_isblock libxfs_dir2_isblock
	126	#define xfs_dir2_isleaf libxfs_dir2_isleaf
	127
	128	/* xfs_dir2_data.h */
	129	#define xfs_dir2_data_freescan libxfs_dir2_data_freescan
	130	#define xfs_dir2_data_log_entry libxfs_dir2_data_log_entry
	131	#define xfs_dir2_data_log_header libxfs_dir2_data_log_header
	132	#define xfs_dir2_data_make_free libxfs_dir2_data_make_free
	133	#define xfs_dir2_data_use_free libxfs_dir2_data_use_free
	134	#define xfs_dir2_shrink_inode libxfs_dir2_shrink_inode
	135
	136	/* xfs_inode.h */
	137	#define xfs_dinode_from_disk libxfs_dinode_from_disk
	138	#define xfs_dinode_to_disk libxfs_dinode_to_disk
	139	#define xfs_dinode_calc_crc libxfs_dinode_calc_crc
	140	#define xfs_idata_realloc libxfs_idata_realloc
	141	#define xfs_idestroy_fork libxfs_idestroy_fork
	142
	143	#define xfs_dinode_verify libxfs_dinode_verify
	144
	145	/* xfs_sb.h */
	146	#define xfs_mod_sb libxfs_mod_sb
	147	#define xfs_sb_from_disk libxfs_sb_from_disk
	148	#define xfs_sb_quota_from_disk libxfs_sb_quota_from_disk
	149	#define xfs_sb_to_disk libxfs_sb_to_disk
	150
	151	/* xfs_symlink.h */
	152	#define xfs_symlink_blocks libxfs_symlink_blocks
	153	#define xfs_symlink_hdr_ok libxfs_symlink_hdr_ok
	154
	155	/* xfs_trans_resv.h */
	156	#define xfs_trans_resv_calc libxfs_trans_resv_calc
	157
	158
	159	/*
	160	* Now we've renamed and mapped everything, include the rest of the external
	161	* libxfs headers.
	162	*/
1d7e80ee	163	#include <xfs/libxfs.h>
a2ceac1f	164	#include "xfs_dir2_priv.h"
2bd0ea18	165
a2ceac1f DC	166	#undef ASSERT
a2ceac1f DC	167	#define ASSERT(ex) assert(ex)
5e656dbb	168
a2ceac1f	169	typedef __uint32_t uint_t;
5e656dbb BN	170	typedef __uint32_t inst_t; /* an instruction */
5e656dbb BN	171
613e6057 DC	172	/*
	173	* Argument structure for xfs_bmap_alloc.
	174	*/
	175	typedef struct xfs_bmalloca {
	176	xfs_fsblock_t firstblock; / i/o first block allocated */
	177	struct xfs_bmap_free flist; / bmap freelist */
	178	struct xfs_trans tp; / transaction pointer */
	179	struct xfs_inode ip; / incore inode pointer */
	180	struct xfs_bmbt_irec prev; /* extent before the new one */
	181	struct xfs_bmbt_irec got; /* extent after, or delayed */
	182
	183	xfs_fileoff_t offset; /* offset in file filling in */
	184	xfs_extlen_t length; /* i/o length asked/allocated */
	185	xfs_fsblock_t blkno; /* starting block of new extent */
	186
	187	struct xfs_btree_cur cur; / btree cursor */
	188	xfs_extnum_t idx; /* current extent index */
	189	int nallocs;/* number of extents alloc'd */
	190	int logflags;/* flags for transaction logging */
	191
	192	xfs_extlen_t total; /* total blocks needed for xaction */
	193	xfs_extlen_t minlen; /* minimum allocation size (blocks) */
	194	xfs_extlen_t minleft; /* amount must be left after alloc */
	195	char eof; /* set if allocating past last extent */
	196	char wasdel; /* replacing a delayed allocation */
	197	char userdata;/* set if is user data */
	198	char aeof; /* allocated space at eof */
	199	char conv; /* overwriting unwritten extents */
	200	char stack_switch;
	201	int flags;
	202	} xfs_bmalloca_t;
	203
	204	#define xfs_bmapi_allocate __xfs_bmapi_allocate
	205
a2ceac1f DC	206	#ifndef EWRONGFS
	207	#define EWRONGFS EINVAL
	208	#endif
5e656dbb	209
56b2de80	210	#define xfs_error_level 0
5e656dbb BN	211
5e656dbb BN	212	#define STATIC static
5e656dbb BN	213
	214	#define ATTR_ROOT LIBXFS_ATTR_ROOT
	215	#define ATTR_SECURE LIBXFS_ATTR_SECURE
	216	#define ATTR_CREATE LIBXFS_ATTR_CREATE
	217	#define ATTR_REPLACE LIBXFS_ATTR_REPLACE
	218	#define ATTR_KERNOTIME 0
	219	#define ATTR_KERNOVAL 0
	220
	221	#define IHOLD(ip) ((void) 0)
	222
5dcd1db5 DC	223	#define XFS_IGET_CREATE 0x1
	224	#define XFS_IGET_UNTRUSTED 0x2
	225
a2ceac1f	226	/* stop unused var warnings by assigning mp to itself */
e0607266 DC	227	#define XFS_CORRUPTION_ERROR(e,l,mp,m) do { \
	228	(mp) = (mp); \
	229	cmn_err(CE_ALERT, "%s: XFS_CORRUPTION_ERROR", (e)); \
	230	} while (0)
	231
	232	#define XFS_ERROR_REPORT(e,l,mp) do { \
	233	(mp) = (mp); \
	234	cmn_err(CE_ALERT, "%s: XFS_ERROR_REPORT", (e)); \
	235	} while (0)
	236
5e656dbb	237	#define XFS_QM_DQATTACH(mp,ip,flags) 0
5e656dbb BN	238	#define XFS_ERRLEVEL_LOW 1
	239	#define XFS_FORCED_SHUTDOWN(mp) 0
	240	#define XFS_ILOCK_EXCL 0
	241	#define XFS_STATS_INC(count) do { } while (0)
	242	#define XFS_STATS_DEC(count, x) do { } while (0)
	243	#define XFS_STATS_ADD(count, x) do { } while (0)
	244	#define XFS_TRANS_MOD_DQUOT_BYINO(mp,tp,ip,field,delta) do { } while (0)
	245	#define XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl) 0
	246	#define XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl) 0
	247	#define XFS_TEST_ERROR(expr,a,b,c) ( expr )
	248	#define XFS_WANT_CORRUPTED_GOTO(expr,l) \
	249	{ if (!(expr)) { error = EFSCORRUPTED; goto l; } }
	250	#define XFS_WANT_CORRUPTED_RETURN(expr) \
	251	{ if (!(expr)) { return EFSCORRUPTED; } }
	252
5e656dbb BN	253	#ifdef __GNUC__
	254	#define __return_address __builtin_return_address(0)
	255	#endif
	256
364e85ec DC	257	#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
364e85ec DC	258
5e656dbb BN	259	/* miscellaneous kernel routines not in user space */
	260	#define down_read(a) ((void) 0)
	261	#define up_read(a) ((void) 0)
	262	#define spin_lock_init(a) ((void) 0)
	263	#define spin_lock(a) ((void) 0)
	264	#define spin_unlock(a) ((void) 0)
	265	#define likely(x) (x)
	266	#define unlikely(x) (x)
56b2de80 DC	267	#define rcu_read_lock() ((void) 0)
56b2de80 DC	268	#define rcu_read_unlock() ((void) 0)
5e656dbb	269
2bd0ea18	270	/*
49f693fa	271	* prandom_u32 is used for di_gen inode allocation, it must be zero for libxfs
5e656dbb	272	* or all sorts of badness can occur!
2bd0ea18	273	*/
49f693fa	274	#define prandom_u32() 0
2bd0ea18	275
5e656dbb	276	#define PAGE_CACHE_SIZE getpagesize()
2bd0ea18	277
5e656dbb BN	278	static inline int __do_div(unsigned long long *n, unsigned base)
	279	{
	280	int __res;
	281	__res = (int)(((unsigned long) *n) % (unsigned) base);
	282	n = ((unsigned long) n) / (unsigned) base;
	283	return __res;
	284	}
	285
	286	#define do_div(n,base) (__do_div((unsigned long long *)&(n), (base)))
	287	#define do_mod(a, b) ((a) % (b))
	288	#define rol32(x,y) (((x) << (y)) \| ((x) >> (32 - (y))))
2bd0ea18	289
5e656dbb BN	290	#define min_t(type,x,y) \
	291	({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
	292	#define max_t(type,x,y) \
	293	({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
57c9fccb	294
91eba724	295
91eba724	296
5e656dbb BN	297	static inline __attribute__((const))
	298	int is_power_of_2(unsigned long n)
	299	{
	300	return (n != 0 && ((n & (n - 1)) == 0));
	301	}
2bd0ea18 NS	302
2bd0ea18 NS	303	/*
5e656dbb	304	* xfs_iroundup: round up argument to next power of two
2bd0ea18	305	*/
5e656dbb BN	306	static inline uint
	307	roundup_pow_of_two(uint v)
	308	{
	309	int i;
	310	uint m;
	311
	312	if ((v & (v - 1)) == 0)
	313	return v;
	314	ASSERT((v & 0x80000000) == 0);
	315	if ((v & (v + 1)) == 0)
	316	return v + 1;
	317	for (i = 0, m = 1; i < 31; i++, m <<= 1) {
	318	if (v & m)
	319	continue;
	320	v \|= m;
	321	if ((v & (v + 1)) == 0)
	322	return v + 1;
	323	}
	324	ASSERT(0);
	325	return 0;
	326	}
2bd0ea18	327
88cd79be DC	328	static inline __uint64_t
	329	roundup_64(__uint64_t x, __uint32_t y)
	330	{
	331	x += y - 1;
	332	do_div(x, y);
	333	return x * y;
	334	}
	335
2bd0ea18 NS	336	/* buffer management */
2bd0ea18 NS	337	#define XFS_BUF_LOCK 0
2bd0ea18	338	#define XFS_BUF_TRYLOCK 0
56b2de80 DC	339	#define XBF_LOCK XFS_BUF_LOCK
	340	#define XBF_TRYLOCK XFS_BUF_TRYLOCK
	341	#define XBF_DONT_BLOCK 0
a2ceac1f	342	#define XBF_UNMAPPED 0
e9d35108	343	#define XBF_DONE 0
2bd0ea18	344	#define XFS_BUF_GETERROR(bp) 0
f1b058f9 NS	345	#define XFS_BUF_DONE(bp) ((bp)->b_flags \|= LIBXFS_B_UPTODATE)
f1b058f9 NS	346	#define XFS_BUF_ISDONE(bp) ((bp)->b_flags & LIBXFS_B_UPTODATE)
a2ceac1f	347	#define xfs_buf_stale(bp) ((bp)->b_flags \|= LIBXFS_B_STALE)
f1b058f9	348	#define XFS_BUF_UNDELAYWRITE(bp) ((bp)->b_flags &= ~LIBXFS_B_DIRTY)
2bd0ea18 NS	349	#define XFS_BUF_SET_VTYPE(a,b) ((void) 0)
	350	#define XFS_BUF_SET_VTYPE_REF(a,b,c) ((void) 0)
	351	#define XFS_BUF_SET_BDSTRAT_FUNC(a,b) ((void) 0)
5e656dbb	352
9d6fabc0 DC	353	/* avoid gcc warning */
	354	#define xfs_incore(bt,blkno,len,lockit) ({ \
	355	typeof(blkno) __foo = (blkno); \
6bddecbc	356	typeof(len) __bar = (len); \
9d6fabc0	357	(blkno) = __foo; \
6bddecbc	358	(len) = __bar; /* no set-but-unused warning */ \
9d6fabc0 DC	359	NULL; \
9d6fabc0 DC	360	})
2bd0ea18	361	#define xfs_buf_relse(bp) libxfs_putbuf(bp)
75c8b434	362	#define xfs_buf_get(devp,blkno,len,f) (libxfs_getbuf((devp), (blkno), (len)))
9d6fabc0	363	#define xfs_bwrite(bp) libxfs_writebuf((bp), 0)
e9d35108	364	#define xfs_buf_delwri_queue(bp, bl) libxfs_writebuf((bp), 0)
57c9fccb	365
56b2de80 DC	366	#define XBRW_READ LIBXFS_BREAD
	367	#define XBRW_WRITE LIBXFS_BWRITE
	368	#define xfs_buf_iomove(bp,off,len,data,f) libxfs_iomove(bp,off,len,data,f)
	369	#define xfs_buf_zero(bp,off,len) libxfs_iomove(bp,off,len,0,LIBXFS_BZERO)
2bd0ea18	370
5e656dbb BN	371	/* mount stuff */
	372	#define XFS_MOUNT_32BITINODES LIBXFS_MOUNT_32BITINODES
	373	#define XFS_MOUNT_ATTR2 LIBXFS_MOUNT_ATTR2
	374	#define XFS_MOUNT_SMALL_INUMS 0 /* ignored in userspace */
	375	#define XFS_MOUNT_WSYNC 0 /* ignored in userspace */
	376	#define XFS_MOUNT_NOALIGN 0 /* ignored in userspace */
3439d03a	377	#define XFS_MOUNT_IKEEP 0 /* ignored in userspace */
ff105f75 DC	378	#define XFS_MOUNT_SWALLOC 0 /* ignored in userspace */
ff105f75 DC	379	#define XFS_MOUNT_RDONLY 0 /* ignored in userspace */
5e656dbb	380
56b2de80 DC	381	#define xfs_icsb_modify_counters(mp, field, delta, rsvd) \
	382	xfs_mod_incore_sb(mp, field, delta, rsvd)
	383
5e656dbb BN	384
	385	#define xfs_trans_get_block_res(tp) 1
	386	#define xfs_trans_set_sync(tp) ((void) 0)
e9d35108	387	#define xfs_trans_ordered_buf(tp, bp) ((void) 0)
5e656dbb BN	388	#define xfs_trans_agblocks_delta(tp, d)
	389	#define xfs_trans_agflist_delta(tp, d)
	390	#define xfs_trans_agbtree_delta(tp, d)
6bddecbc DC	391	#define xfs_trans_buf_set_type(tp, bp, t) ({ \
	392	int __t = (t); \
	393	__t = __t; /* no set-but-unused warning */ \
	394	})
	395
8b4dc4a9	396	#define xfs_trans_buf_copy_type(dbp, sbp)
5e656dbb	397
10851b18 DC	398	/* no readahead, need to avoid set-but-unused var warnings. */
	399	#define xfs_buf_readahead(a,d,c,ops) ({ \
	400	xfs_daddr_t __d = d; \
	401	__d = __d; /* no set-but-unused warning */ \
	402	})
a2ceac1f	403	#define xfs_buf_readahead_map(a,b,c,ops) ((void) 0) /* no readahead */
a2ceac1f	404	#define xfs_buftrace(x,y) ((void) 0) /* debug only */
5e656dbb BN	405
5e656dbb BN	406	#define xfs_cmn_err(tag,level,mp,fmt,args...) cmn_err(level,fmt, ## args)
a2ceac1f DC	407	#define xfs_warn(mp,fmt,args...) cmn_err(CE_WARN,fmt, ## args)
	408	#define xfs_alert(mp,fmt,args...) cmn_err(CE_ALERT,fmt, ## args)
	409	#define xfs_alert_tag(mp,tag,fmt,args...) cmn_err(CE_ALERT,fmt, ## args)
5e656dbb	410
2bd0ea18 NS	411	#define xfs_dir2_trace_args(where, args) ((void) 0)
	412	#define xfs_dir2_trace_args_b(where, args, bp) ((void) 0)
	413	#define xfs_dir2_trace_args_bb(where, args, lbp, dbp) ((void) 0)
	414	#define xfs_dir2_trace_args_bibii(where, args, bs, ss, bd, sd, c) ((void) 0)
	415	#define xfs_dir2_trace_args_db(where, args, db, bp) ((void) 0)
	416	#define xfs_dir2_trace_args_i(where, args, i) ((void) 0)
	417	#define xfs_dir2_trace_args_s(where, args, s) ((void) 0)
	418	#define xfs_dir2_trace_args_sb(where, args, s, bp) ((void) 0)
5e656dbb	419	#define xfs_sort qsort
2bd0ea18	420
5e656dbb BN	421	#define xfs_icsb_reinit_counters(mp) do { } while (0)
5e656dbb BN	422	#define xfs_initialize_perag_icache(pag) ((void) 0)
27c21191	423
5e656dbb	424	#define xfs_ilock(ip,mode) ((void) 0)
a2ceac1f DC	425	#define xfs_ilock_nowait(ip,mode) ((void) 0)
a2ceac1f DC	426	#define xfs_ilock_demote(ip,mode) ((void) 0)
ff105f75 DC	427	#define xfs_ilock_data_map_shared(ip) (0)
	428	#define xfs_ilock_attr_map_shared(ip) (0)
	429	#define xfs_iunlock(ip,mode) ({ \
	430	typeof(mode) __mode = mode; \
	431	__mode = __mode; /* no set-but-unused warning */ \
	432	})
a2ceac1f	433	#define __xfs_flock(ip) ((void) 0)
2bd0ea18	434
5e656dbb	435	/* space allocation */
a2ceac1f DC	436	#define xfs_extent_busy_reuse(mp,ag,bno,len,user) ((void) 0)
	437	#define xfs_extent_busy_insert(tp,ag,bno,len,flags) ((void) 0)
	438	#define xfs_extent_busy_trim(args,fbno,flen,bno,len) \
	439	do { \
	440	*(bno) = (fbno); \
	441	*(len) = (flen); \
	442	} while (0)
	443
56b2de80 DC	444	/* avoid unused variable warning */
	445	#define xfs_alloc_busy_insert(tp,ag,b,len) ({ \
	446	xfs_agnumber_t __foo = ag; \
	447	__foo = 0; \
	448	})
a2ceac1f	449
5e656dbb BN	450	#define xfs_rotorstep 1
	451	#define xfs_bmap_rtalloc(a) (ENOSYS)
	452	#define xfs_rtpick_extent(mp,tp,len,p) (ENOSYS)
	453	#define xfs_get_extsz_hint(ip) (0)
	454	#define xfs_inode_is_filestream(ip) (0)
	455	#define xfs_filestream_lookup_ag(ip) (0)
	456	#define xfs_filestream_new_ag(ip,ag) (0)
2bd0ea18	457
a2ceac1f DC	458	#define xfs_log_force(mp,flags) ((void) 0)
	459	#define XFS_LOG_SYNC 1
	460
	461	/* quota bits */
	462	#define xfs_trans_mod_dquot_byino(t,i,f,d) ((void) 0)
	463	#define xfs_trans_reserve_quota_nblks(t,i,b,n,f) (0)
	464	#define xfs_trans_unreserve_quota_nblks(t,i,b,n,f) ((void) 0)
	465	#define xfs_qm_dqattach(i,f) (0)
	466
5dfa5cd2 DC	467	#define uuid_copy(s,d) platform_uuid_copy((s),(d))
	468	#define uuid_equal(s,d) (platform_uuid_compare((s),(d)) == 0)
	469
e9d35108	470	#define xfs_icreate_log(tp, agno, agbno, cnt, isize, len, gen) ((void) 0)
4896e6c8	471	#define xfs_sb_validate_fsb_count(sbp, nblks) (0)
e9d35108	472
2bd0ea18	473	/*
5e656dbb BN	474	* Prototypes for kernel static functions that are aren't in their
5e656dbb BN	475	* associated header files
2bd0ea18 NS	476	*/
2bd0ea18 NS	477
5e656dbb BN	478	/* xfs_attr.c */
5e656dbb BN	479	int xfs_attr_rmtval_get(struct xfs_da_args *);
2bd0ea18 NS	480
2bd0ea18 NS	481	/* xfs_bmap.c */
5e656dbb BN	482	void xfs_bmap_del_free(xfs_bmap_free_t , xfs_bmap_free_item_t ,
5e656dbb BN	483	xfs_bmap_free_item_t *);
2bd0ea18	484
a2ceac1f DC	485	/*
	486	* For regular files we only update the on-disk filesize when actually
	487	* writing data back to disk. Until then only the copy in the VFS inode
	488	* is uptodate.
	489	*/
	490	static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
	491	{
	492	if (S_ISREG(ip->i_d.di_mode))
	493	return ip->i_size;
	494	return ip->i_d.di_size;
	495	}
5a35bf2c	496	#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
5e656dbb BN	497
	498	/* xfs_mount.c */
	499	int xfs_initialize_perag_data(xfs_mount_t *, xfs_agnumber_t);
	500	void xfs_mount_common(xfs_mount_t , xfs_sb_t );
	501
	502	/*
	503	* logitem.c and trans.c prototypes
	504	*/
4329aa4c DC	505	void xfs_trans_init(struct xfs_mount *);
4329aa4c DC	506	int xfs_trans_roll(struct xfs_trans *, struct xfs_inode );
2bd0ea18 NS	507
2bd0ea18 NS	508	/* xfs_trans_item.c */
c40bdaa2 DC	509	void xfs_trans_add_item(struct xfs_trans , struct xfs_log_item );
	510	void xfs_trans_del_item(struct xfs_log_item *);
	511	void xfs_trans_free_items(struct xfs_trans *, int);
2bd0ea18	512
2bd0ea18 NS	513	/* xfs_inode_item.c */
	514	void xfs_inode_item_init (xfs_inode_t , xfs_mount_t );
	515
	516	/* xfs_buf_item.c */
	517	void xfs_buf_item_init (xfs_buf_t , xfs_mount_t );
	518	void xfs_buf_item_log (xfs_buf_log_item_t *, uint, uint);
	519
5e656dbb	520	/* xfs_trans_buf.c */
75c8b434	521	xfs_buf_t xfs_trans_buf_item_match(xfs_trans_t , struct xfs_buftarg *,
a2ceac1f	522	struct xfs_buf_map *, int);
5e656dbb	523
2bd0ea18	524	/* local source files */
5e656dbb BN	525	int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
5e656dbb BN	526	void xfs_trans_mod_sb(xfs_trans_t *, uint, long);
79737cd9 DC	527	void xfs_trans_init(struct xfs_mount *);
79737cd9 DC	528	int xfs_trans_roll(struct xfs_trans *, struct xfs_inode );
99c1ec96	529	void xfs_verifier_error(struct xfs_buf *bp);
f616e2bf DC	530
f616e2bf DC	531	#endif /* __LIBXFS_INTERNAL_XFS_H */