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Switch xfs from using a big endian internal representation for
the in memory copy of extents to a host byte order representation.
The internal extents are read in once, then modified seperately
from the on disk ones. Since we search and manipulate the extents
multiple times, it is cheaper to convert them to host byte order
once and then keep them in that format. Worth about 5 to 10%
reduction in cpu time for some loads. Complicated by the fact
that the in memory extents are written out to the log sometimes,
and when expanding extents are used to write out the initial
block of extents.
prototype change

/*
 * Copyright (c) 2000-2002 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_INODE_H__
#define __XFS_INODE_H__

/*
 * File incore extent information, present for each of data & attr forks.
 */
#define XFS_INLINE_EXTS 2
#define XFS_INLINE_DATA 32
typedef struct xfs_ifork {
	int			if_bytes;	/* bytes in if_u1 */
	int			if_real_bytes;	/* bytes allocated in if_u1 */
	xfs_bmbt_block_t	*if_broot;	/* file's incore btree root */
	short			if_broot_bytes; /* bytes allocated for root */
	unsigned char		if_flags;	/* per-fork flags */
	unsigned char		if_ext_max;	/* max # of extent records */
	xfs_extnum_t		if_lastex;	/* last if_extents used */
	union {
		xfs_bmbt_rec_t	*if_extents;	/* linear map file exts */
		char		*if_data;	/* inline file data */
	} if_u1;
	union {
		xfs_bmbt_rec_t	if_inline_ext[XFS_INLINE_EXTS];
						/* very small file extents */
		char		if_inline_data[XFS_INLINE_DATA];
						/* very small file data */
		xfs_dev_t	if_rdev;	/* dev number if special */
		uuid_t		if_uuid;	/* mount point value */
	} if_u2;
} xfs_ifork_t;

/*
 * Flags for xfs_ichgtime().
 */
#define XFS_ICHGTIME_MOD	0x1	/* data fork modification timestamp */
#define XFS_ICHGTIME_ACC	0x2	/* data fork access timestamp */
#define XFS_ICHGTIME_CHG	0x4	/* inode field change timestamp */

/*
 * Per-fork incore inode flags.
 */
#define XFS_IFINLINE	0x0001	/* Inline data is read in */
#define XFS_IFEXTENTS	0x0002	/* All extent pointers are read in */
#define XFS_IFBROOT	0x0004	/* i_broot points to the bmap b-tree root */

/*
 * Flags for xfs_imap() and xfs_dilocate().
 */
#define XFS_IMAP_LOOKUP		0x1

/*
 * Maximum number of extent pointers in if_u1.if_extents.
 */
#define XFS_MAX_INCORE_EXTENTS	32768


#ifdef __KERNEL__
struct bhv_desc;
struct cred;
struct ktrace;
struct vnode;
struct xfs_buf;
struct xfs_bmap_free;
struct xfs_bmbt_irec;
struct xfs_bmbt_block;
struct xfs_inode;
struct xfs_inode_log_item;
struct xfs_mount;
struct xfs_trans;
struct xfs_dquot;


/*
 * This structure is used to communicate which extents of a file
 * were holes when a write started from xfs_write_file() to
 * xfs_strat_read().  This is necessary so that we can know which
 * blocks need to be zeroed when they are read in in xfs_strat_read()
 * if they weren\'t allocated when the buffer given to xfs_strat_read()
 * was mapped.
 *
 * We keep a list of these attached to the inode.  The list is
 * protected by the inode lock and the fact that the io lock is
 * held exclusively by writers.
 */
typedef struct xfs_gap {
	struct xfs_gap	*xg_next;
	xfs_fileoff_t	xg_offset_fsb;
	xfs_extlen_t	xg_count_fsb;
} xfs_gap_t;

typedef struct dm_attrs_s {
	__uint32_t	da_dmevmask;	/* DMIG event mask */
	__uint16_t	da_dmstate;	/* DMIG state info */
	__uint16_t	da_pad;		/* DMIG extra padding */
} dm_attrs_t;

typedef struct xfs_iocore {
	void			*io_obj;	/* pointer to container
						 * inode or dcxvn structure */
	struct xfs_mount	*io_mount;	/* fs mount struct ptr */
#ifdef DEBUG
	mrlock_t		*io_lock;	/* inode IO lock */
	mrlock_t		*io_iolock;	/* inode IO lock */
#endif

	/* I/O state */
	xfs_fsize_t		io_new_size;	/* sz when write completes */

	/* Miscellaneous state. */
	unsigned int		io_flags;	/* IO related flags */

	/* DMAPI state */
	dm_attrs_t		io_dmattrs;

} xfs_iocore_t;

#define	       io_dmevmask     io_dmattrs.da_dmevmask
#define	       io_dmstate      io_dmattrs.da_dmstate

#define XFS_IO_INODE(io)	((xfs_inode_t *) ((io)->io_obj))
#define XFS_IO_DCXVN(io)	((dcxvn_t *) ((io)->io_obj))

/*
 * Flags in the flags field
 */

#define XFS_IOCORE_ISXFS	0x01
#define XFS_IOCORE_ISCXFS	0x02
#define XFS_IOCORE_RT		0x04

#define IO_IS_XFS(io)	((io)->io_flags & XFS_IOCORE_ISXFS)

/*
 * xfs_iocore prototypes
 */

extern void xfs_iocore_inode_init(struct xfs_inode *);
extern void xfs_iocore_inode_reinit(struct xfs_inode *);


/*
 * This is the type used in the xfs inode hash table.
 * An array of these is allocated for each mounted
 * file system to hash the inodes for that file system.
 */
typedef struct xfs_ihash {
	struct xfs_inode	*ih_next;	
	rwlock_t		ih_lock;
	uint			ih_version;
} xfs_ihash_t;

/*
 * Inode hashing and hash bucket locking.
 */
#define XFS_BUCKETS(mp) (37*(mp)->m_sb.sb_agcount-1)
#define XFS_IHASH(mp,ino) ((mp)->m_ihash + (((uint)ino) % (mp)->m_ihsize))

/*
 * This is the xfs inode cluster hash.	This hash is used by xfs_iflush to
 * find inodes that share a cluster and can be flushed to disk at the same
 * time.
 */

typedef struct xfs_chashlist {
	struct xfs_chashlist	*chl_next;
	struct xfs_inode	*chl_ip;
	xfs_daddr_t		chl_blkno;	/* starting block number of
						 * the cluster */
#ifdef DEBUG
	struct xfs_buf		*chl_buf;	/* debug: the inode buffer */
#endif
} xfs_chashlist_t;

typedef struct xfs_chash {
	xfs_chashlist_t		*ch_list;
	lock_t			ch_lock;
} xfs_chash_t;


/*
 * This is the xfs in-core inode structure.
 * Most of the on-disk inode is embedded in the i_d field.
 *
 * The extent pointers/inline file space, however, are managed
 * separately.	The memory for this information is pointed to by
 * the if_u1 unions depending on the type of the data.
 * This is used to linearize the array of extents for fast in-core
 * access.  This is used until the file's number of extents
 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
 * are accessed through the buffer cache.
 *
 * Other state kept in the in-core inode is used for identification,
 * locking, transactional updating, etc of the inode.
 *
 * Generally, we do not want to hold the i_rlock while holding the
 * i_ilock. Hierarchy is i_iolock followed by i_rlock.
 *
 * xfs_iptr_t contains all the inode fields upto and including the
 * i_mnext and i_mprev fields, it is used as a marker in the inode
 * chain off the mount structure by xfs_sync calls.
 */

typedef struct {
	struct xfs_ihash	*ip_hash;	/* pointer to hash header */
	struct xfs_inode	*ip_next;	/* inode hash link forw */
	struct xfs_inode	*ip_mnext;	/* next inode in mount list */
	struct xfs_inode	*ip_mprev;	/* ptr to prev inode */
	struct xfs_inode	**ip_prevp;	/* ptr to prev i_next */
	struct xfs_mount	*ip_mount;	/* fs mount struct ptr */
} xfs_iptr_t;

typedef struct xfs_inode {
	/* Inode linking and identification information. */
	struct xfs_ihash	*i_hash;	/* pointer to hash header */
	struct xfs_inode	*i_next;	/* inode hash link forw */
	struct xfs_inode	*i_mnext;	/* next inode in mount list */
	struct xfs_inode	*i_mprev;	/* ptr to prev inode */
	struct xfs_inode	**i_prevp;	/* ptr to prev i_next */
	struct xfs_mount	*i_mount;	/* fs mount struct ptr */
	struct bhv_desc		i_bhv_desc;	/* inode behavior descriptor*/
	struct xfs_dquot	*i_udquot;	/* user dquot */
	struct xfs_dquot	*i_gdquot;	/* group dquot */

	/* Inode location stuff */
	xfs_ino_t		i_ino;		/* inode number (agno/agino)*/
	xfs_daddr_t		i_blkno;	/* blkno of inode buffer */
	ushort			i_len;		/* len of inode buffer */
	ushort			i_boffset;	/* off of inode in buffer */

	/* Extent information. */
	xfs_ifork_t		*i_afp;		/* attribute fork pointer */
	xfs_ifork_t		i_df;		/* data fork */

	/* Transaction and locking information. */
	struct xfs_trans	*i_transp;	/* ptr to owning transaction*/
	struct xfs_inode_log_item *i_itemp;	/* logging information */
	mrlock_t		i_lock;		/* inode lock */
	mrlock_t		i_iolock;	/* inode IO lock */
	sema_t			i_flock;	/* inode flush lock */
	atomic_t		i_pincount;	/* inode pin count */
	wait_queue_head_t	i_ipin_wait;	/* inode pinning wait queue */
	struct xfs_inode	**i_refcache;	/* ptr to entry in ref cache */
	struct xfs_inode	*i_release;	/* inode to unref */

	/* I/O state */
	xfs_iocore_t		i_iocore;	/* I/O core */

	/* Miscellaneous state. */
	unsigned short		i_flags;	/* see defined flags below */
	unsigned char		i_update_core;	/* timestamps/size is dirty */
	unsigned char		i_update_size;	/* di_size field is dirty */
	unsigned int		i_gen;		/* generation count */
	unsigned int		i_delayed_blks; /* count of delay alloc blks */

	xfs_dinode_core_t	i_d;		/* most of ondisk inode */
	xfs_chashlist_t		*i_chash;	/* cluster hash list header */
	struct xfs_inode	*i_cnext;	/* cluster hash link forward */
	struct xfs_inode	*i_cprev;	/* cluster hash link backward */

#ifdef DEBUG
	/* Trace buffers per inode. */
	struct ktrace		*i_xtrace;	/* inode extent list trace */
	struct ktrace		*i_btrace;	/* inode bmap btree trace */
	struct ktrace		*i_rwtrace;	/* inode read/write trace */
	struct ktrace		*i_strat_trace; /* inode strat_write trace */
	struct ktrace		*i_lock_trace;	/* inode lock/unlock trace */
	struct ktrace		*i_dir_trace;	/* inode directory trace */
#endif /* DEBUG */
} xfs_inode_t;

#endif	/* __KERNEL__ */


/*
 * Fork handling.
 */
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_PTR)
xfs_ifork_t *xfs_ifork_ptr(xfs_inode_t *ip, int w);
#define XFS_IFORK_PTR(ip,w)		xfs_ifork_ptr(ip,w)
#else
#define XFS_IFORK_PTR(ip,w)   ((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_Q)
int xfs_ifork_q(xfs_inode_t *ip);
#define XFS_IFORK_Q(ip)			xfs_ifork_q(ip)
#else
#define XFS_IFORK_Q(ip)			XFS_CFORK_Q(&(ip)->i_d)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_DSIZE)
int xfs_ifork_dsize(xfs_inode_t *ip);
#define XFS_IFORK_DSIZE(ip)		xfs_ifork_dsize(ip)
#else
#define XFS_IFORK_DSIZE(ip)		XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_ASIZE)
int xfs_ifork_asize(xfs_inode_t *ip);
#define XFS_IFORK_ASIZE(ip)		xfs_ifork_asize(ip)
#else
#define XFS_IFORK_ASIZE(ip)		XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_SIZE)
int xfs_ifork_size(xfs_inode_t *ip, int w);
#define XFS_IFORK_SIZE(ip,w)		xfs_ifork_size(ip,w)
#else
#define XFS_IFORK_SIZE(ip,w)		XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_FORMAT)
int xfs_ifork_format(xfs_inode_t *ip, int w);
#define XFS_IFORK_FORMAT(ip,w)		xfs_ifork_format(ip,w)
#else
#define XFS_IFORK_FORMAT(ip,w)		XFS_CFORK_FORMAT(&ip->i_d, w)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_FMT_SET)
void xfs_ifork_fmt_set(xfs_inode_t *ip, int w, int n);
#define XFS_IFORK_FMT_SET(ip,w,n)	xfs_ifork_fmt_set(ip,w,n)
#else
#define XFS_IFORK_FMT_SET(ip,w,n)	XFS_CFORK_FMT_SET(&ip->i_d, w, n)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_NEXTENTS)
int xfs_ifork_nextents(xfs_inode_t *ip, int w);
#define XFS_IFORK_NEXTENTS(ip,w)	xfs_ifork_nextents(ip,w)
#else
#define XFS_IFORK_NEXTENTS(ip,w)	XFS_CFORK_NEXTENTS(&ip->i_d, w)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_IFORK_NEXT_SET)
void xfs_ifork_next_set(xfs_inode_t *ip, int w, int n);
#define XFS_IFORK_NEXT_SET(ip,w,n)	xfs_ifork_next_set(ip,w,n)
#else
#define XFS_IFORK_NEXT_SET(ip,w,n)	XFS_CFORK_NEXT_SET(&ip->i_d, w, n)
#endif


#ifdef __KERNEL__

/*
 * In-core inode flags.
 */
#define XFS_IGRIO	0x0001	/* inode used for guaranteed rate i/o */
#define XFS_IUIOSZ	0x0002	/* inode i/o sizes have been explicitly set */
#define XFS_IQUIESCE	0x0004	/* we have started quiescing for this inode */
#define XFS_IRECLAIM	0x0008	/* we have started reclaiming this inode    */

/*
 * Flags for inode locking.
 */
#define XFS_IOLOCK_EXCL		0x001
#define XFS_IOLOCK_SHARED	0x002
#define XFS_ILOCK_EXCL		0x004
#define XFS_ILOCK_SHARED	0x008
#define XFS_IUNLOCK_NONOTIFY	0x010
#define XFS_EXTENT_TOKEN_RD	0x040
#define XFS_SIZE_TOKEN_RD	0x080
#define XFS_EXTSIZE_RD		(XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
#define XFS_WILLLEND		0x100	/* Always acquire tokens for lending */
#define XFS_EXTENT_TOKEN_WR	(XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
#define XFS_SIZE_TOKEN_WR	(XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
#define XFS_EXTSIZE_WR		(XFS_EXTSIZE_RD | XFS_WILLLEND)


#define XFS_LOCK_MASK	\
	(XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \
	 XFS_ILOCK_SHARED | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD | \
	 XFS_WILLLEND)

/*
 * Flags for xfs_iflush()
 */
#define XFS_IFLUSH_DELWRI_ELSE_SYNC	1
#define XFS_IFLUSH_DELWRI_ELSE_ASYNC	2
#define XFS_IFLUSH_SYNC			3
#define XFS_IFLUSH_ASYNC		4
#define XFS_IFLUSH_DELWRI		5

/*
 * Flags for xfs_iflush_all.
 */
#define XFS_FLUSH_ALL		0x1

/*
 * Flags for xfs_itruncate_start().
 */
#define XFS_ITRUNC_DEFINITE	0x1
#define XFS_ITRUNC_MAYBE	0x2

/*
 * max file offset is 2^(31+PAGE_SHIFT) - 1 (due to linux page cache)
 *
 * NOTE: XFS itself can handle 2^63 - 1 (largest positive value of xfs_fsize_t)
 * but Linux can't go above 2^(31+PAGE_SHIFT)-1: the Linux VM uses a 32 bit
 * signed variable to index cache data, so 2^31 * PAGE_SIZE is as big as
 * you can go.
 */
#define XFS_MAX_FILE_OFFSET	((long long)((1ULL<<(31+PAGE_SHIFT))-1ULL))

#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ITOV)
struct vnode *xfs_itov(xfs_inode_t *ip);
#define XFS_ITOV(ip)		xfs_itov(ip)
#else
#define XFS_ITOV(ip)		BHV_TO_VNODE(XFS_ITOBHV(ip))
#endif
#define XFS_ITOV_NULL(ip)	BHV_TO_VNODE_NULL(XFS_ITOBHV(ip))
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ITOBHV)
struct bhv_desc *xfs_itobhv(xfs_inode_t *ip);
#define XFS_ITOBHV(ip)		xfs_itobhv(ip)
#else
#define XFS_ITOBHV(ip)		((struct bhv_desc *)(&((ip)->i_bhv_desc)))
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BHVTOI)
xfs_inode_t *xfs_bhvtoi(struct bhv_desc *bhvp);
#define XFS_BHVTOI(bhvp)	xfs_bhvtoi(bhvp)
#else
#define XFS_BHVTOI(bhvp)	\
	((xfs_inode_t *)((char *)(bhvp) - \
			 (char *)&(((xfs_inode_t *)0)->i_bhv_desc)))
#endif

#define BHV_IS_XFS(bdp)		(BHV_OPS(bdp) == &xfs_vnodeops)

/*
 * Pick the inode cluster hash bucket
 * (m_chash is the same size as m_ihash)
 */
#define XFS_CHASH(mp,blk) ((mp)->m_chash + (((uint)blk) % (mp)->m_chsize))

/*
 * For multiple groups support: if ISGID bit is set in the parent
 * directory, group of new file is set to that of the parent, and
 * new subdirectory gets ISGID bit from parent.
 */
#define XFS_INHERIT_GID(pip, vfsp)	((pip) != NULL && \
	(((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & ISGID)))

/*
 * xfs_iget.c prototypes.
 */
void		xfs_ihash_init(struct xfs_mount *);
void		xfs_ihash_free(struct xfs_mount *);
void		xfs_chash_init(struct xfs_mount *);
void		xfs_chash_free(struct xfs_mount *);
xfs_inode_t	*xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
				  struct xfs_trans *);
void		xfs_inode_lock_init(xfs_inode_t *, struct vnode *);
int		xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
			 uint, xfs_inode_t **, xfs_daddr_t);
void		xfs_iput(xfs_inode_t *, uint);
void		xfs_iput_new(xfs_inode_t *, uint);
void		xfs_ilock(xfs_inode_t *, uint);
int		xfs_ilock_nowait(xfs_inode_t *, uint);
void		xfs_iunlock(xfs_inode_t *, uint);
void		xfs_ilock_demote(xfs_inode_t *, uint);
void		xfs_iflock(xfs_inode_t *);
int		xfs_iflock_nowait(xfs_inode_t *);
uint		xfs_ilock_map_shared(xfs_inode_t *);
void		xfs_iunlock_map_shared(xfs_inode_t *, uint);
void		xfs_ifunlock(xfs_inode_t *);
void		xfs_ireclaim(xfs_inode_t *);
int		xfs_finish_reclaim(xfs_inode_t *, int, int);

/*
 * xfs_inode.c prototypes.
 */
int		xfs_inotobp(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
			    xfs_dinode_t **, struct xfs_buf **, int *);
int		xfs_itobp(struct xfs_mount *, struct xfs_trans *,
			  xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **,
			  xfs_daddr_t);
int		xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
			  xfs_inode_t **, xfs_daddr_t);
int		xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
int		xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t, nlink_t,
			   xfs_dev_t, struct cred *, xfs_prid_t, int,
			   struct xfs_buf **, boolean_t *, xfs_inode_t **);
void		xfs_xlate_dinode_core(xfs_caddr_t, struct xfs_dinode_core *, int,
			   xfs_arch_t);
int		xfs_ifree(struct xfs_trans *, xfs_inode_t *);
int		xfs_atruncate_start(xfs_inode_t *);
void		xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
int		xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
				     xfs_fsize_t, int, int);
int		xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
int		xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *);
void		xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *,
				 xfs_fsize_t, int);

void		xfs_idestroy_fork(xfs_inode_t *, int);
void		xfs_idestroy(xfs_inode_t *);
void		xfs_idata_realloc(xfs_inode_t *, int, int);
void		xfs_iextract(xfs_inode_t *);
void		xfs_iext_realloc(xfs_inode_t *, int, int);
void		xfs_iroot_realloc(xfs_inode_t *, int, int);
void		xfs_ipin(xfs_inode_t *);
void		xfs_iunpin(xfs_inode_t *);
int		xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
int		xfs_iflush(xfs_inode_t *, uint);
int		xfs_iflush_all(struct xfs_mount *, int);
int		xfs_ibusy_check(xfs_inode_t *, int);
int		xfs_iaccess(xfs_inode_t *, mode_t, cred_t *);
uint		xfs_iroundup(uint);
void		xfs_ichgtime(xfs_inode_t *, int);
xfs_fsize_t	xfs_file_last_byte(xfs_inode_t *);
void		xfs_lock_inodes(xfs_inode_t **, int, int, uint);

#define xfs_ipincount(ip)	((unsigned int) atomic_read(&ip->i_pincount))

void xfs_revalidate_inode(struct xfs_mount *, vnode_t *vp, xfs_inode_t *);

#ifdef DEBUG
void		xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t);
#else	/* DEBUG */
#define xfs_isize_check(mp, ip, isize)
#endif	/* DEBUG */

#if defined(DEBUG)
void		xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
#else
#define xfs_inobp_check(mp, bp)
#endif /* DEBUG */

extern struct kmem_zone	*xfs_chashlist_zone;
extern struct kmem_zone	*xfs_ifork_zone;
extern struct kmem_zone	*xfs_inode_zone;
extern struct kmem_zone	*xfs_ili_zone;
extern struct vnodeops	xfs_vnodeops;

#ifdef XFS_ILOCK_TRACE
#define XFS_ILOCK_KTRACE_SIZE	32
void	xfs_ilock_trace(xfs_inode_t *ip, int lock, unsigned int lockflags,
			inst_t *ra);
#endif

#endif	/* __KERNEL__ */

#endif	/* __XFS_INODE_H__ */