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change all #if _K64U64 => #if _MIPS_SIM == _ABI64 and equivalent.
The original meaning/intent of the _K64* and _K32* stuff has been getting more
and more ignored, and now it is just confusing.  #if _K32U32 and equivalent
is just gone, we have no machines like that since 5.3.  #if _K32U64||_K64U64
have the ifdefs removed, and code remaining, since it is always true.
#if _K32U64||_K32U32 usually changed to != _ABI64.  Some files have the
older longer _MIPS_SIM_ABI64 and similar shorted to _ABI64 and equivalent;
the compiler folks tell me this is preferred now and in the future, and
is what cc -show prints, so it is less confusing.

#ifndef _FS_XFS_MACROS_H
#define	_FS_XFS_MACROS_H

#ident 	"$Revision: 1.5 $"

/*
 * Set for debug kernels and simulation, and 32-bit kernels,
 * but not for standalone.  These replacements save space.
 * Used in xfs_macros.c.
 */
#define	XFS_WANT_SPACE_C	\
	(!defined(_STANDALONE) && \
	 (defined(DEBUG) || (defined(_KERNEL) && _MIPS_SIM != _ABI64)))

/*
 * Set for debug simulation and kernel builds, but not for standalone.
 * These replacements do not save space.
 * Used in xfs_macros.c.
 */
#define	XFS_WANT_FUNCS_C	\
	(!defined(_STANDALONE) && defined(DEBUG))

/*
 * Corresponding names used in .h files.
 */
#define	XFS_WANT_SPACE	(XFS_WANT_SPACE_C && !defined(XFS_MACRO_C))
#define	XFS_WANT_FUNCS	(XFS_WANT_FUNCS_C && !defined(XFS_MACRO_C))

/*
 * These are the macros that get turned into functions to save space.
 */
#define	XFSSO_XFS_AG_DADDR 1
#define	XFSSO_XFS_AGB_TO_DADDR 1
#define	XFSSO_XFS_AGINO_TO_INO 1
#define	XFSSO_XFS_ATTR_SF_NEXTENTRY 1
#define	XFSSO_XFS_BMAP_BLOCK_DMAXRECS 1
#define	XFSSO_XFS_BMAP_BLOCK_IMAXRECS 1
#define	XFSSO_XFS_BMAP_BLOCK_IMINRECS 1
#define	XFSSO_XFS_BMAP_BROOT_PTR_ADDR 1
#define	XFSSO_XFS_BMAP_INIT 1
#define	XFSSO_XFS_BMAP_PTR_IADDR 1
#define	XFSSO_XFS_BMAPI_AFLAG 1
#define	XFSSO_XFS_CFORK_ASIZE 1
#if 0
/*
 * This would save space but it slows things down too much.
 */
#define	XFSSO_XFS_DA_MAKE_COOKIE 1
#endif
#define	XFSSO_XFS_DADDR_TO_AGBNO 1
#define	XFSSO_XFS_DADDR_TO_FSB 1
#define	XFSSO_XFS_DFORK_NEXTENTS 1
#define	XFSSO_XFS_DFORK_PTR 1
#define	XFSSO_XFS_DFORK_SIZE 1
#define	XFSSO_XFS_DIR_SF_GET_DIRINO 1
#define	XFSSO_XFS_DIR_SF_NEXTENTRY 1
#define	XFSSO_XFS_DIR_SF_PUT_DIRINO 1
#define	XFSSO_XFS_EXTLEN_MIN 1
#define	XFSSO_XFS_FILBLKS_MIN 1
#define	XFSSO_XFS_FSB_TO_DADDR 1
#define	XFSSO_XFS_FSB_TO_DB 1
#define	XFSSO_XFS_IFORK_DSIZE 1
#define	XFSSO_XFS_IFORK_FORMAT 1
#define	XFSSO_XFS_IFORK_NEXT_SET 1
#define	XFSSO_XFS_IFORK_NEXTENTS 1
#define	XFSSO_XFS_IFORK_PTR 1
#define	XFSSO_XFS_ILOG_FBROOT 1
#define	XFSSO_XFS_ILOG_FEXT 1
#define	XFSSO_XFS_INO_MASK 1
#define	XFSSO_XFS_INO_TO_FSB 1
#define	XFSSO_XFS_INOBT_MASKN 1
#define	XFSSO_XFS_INODE_CLEAR_READ_AHEAD 1
#define	XFSSO_XFS_LIC_CLAIM 1
#define	XFSSO_XFS_LIC_ISFREE 1
#define	XFSSO_XLOG_GRANT_ADD_SPACE 1
#define	XFSSO_XLOG_GRANT_SUB_SPACE 1

#endif	/* _FS_XFS_MACROS_H */