src/afs/afs_osi.h

/*
 * Copyright 2000, International Business Machines Corporation and others.
 * All Rights Reserved.
 *
 * This software has been released under the terms of the IBM Public
 * License.  For details, see the LICENSE file in the top-level source
 * directory or online at http://www.openafs.org/dl/license10.html
 */

#ifndef _AFS_OSI_
#define _AFS_OSI_

#include "h/types.h"
#if !defined(AFS_LINUX26_ENV)
#include "h/param.h"
#endif

#ifdef AFS_FBSD_ENV
#include <sys/condvar.h>
#endif

#ifdef AFS_NBSD_ENV
#include <sys/lock.h>
#endif

#ifdef AFS_LINUX20_ENV
#ifndef _LINUX_CODA_FS_I
#define _LINUX_CODA_FS_I
#define _CODA_HEADER_
struct coda_inode_info {
};
#endif
#ifndef _LINUX_XFS_FS_I
#define _LINUX_XFS_FS_I
struct xfs_inode_info {
};
#endif
#include "h/fs.h"
#include "h/mm.h"
#endif

#if defined(AFS_NBSD50_ENV)
# if !defined(DEF_CADDR_T)
typedef char * caddr_t;
#define DEF_CADDR_T
# endif
#endif


/* this is just a dummy type decl, we're really using struct sockets here */
struct osi_socket {
    int junk;
};

struct osi_stat {
    afs_int32 size;		/* file size in bytes */
    afs_int32 mtime;		/* modification date */
    afs_int32 atime;		/* access time */
};

struct osi_file {
    afs_int32 size;		/* file size in bytes XXX Must be first field XXX */
#ifdef AFS_LINUX26_ENV
    struct file *filp;		/* May need this if we really open the file. */
#else
#ifdef AFS_LINUX22_ENV
    struct dentry dentry;	/* merely to hold the pointer to the inode. */
    struct file file;		/* May need this if we really open the file. */
#else
    struct vnode *vnode;
#endif
#endif
#if	defined(AFS_HPUX102_ENV)
    k_off_t offset;
#else
#if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
    afs_offs_t offset;
#else
    afs_int32 offset;
#endif
#endif
    int (*proc) (struct osi_file * afile, afs_int32 code);	/* proc, which, if not null, is called on writes */
    char *rock;			/* rock passed to proc */
#if defined(UKERNEL)
    int fd;			/* file descriptor for user space files */
#endif				/* defined(UKERNEL) */
};

struct osi_dev {
#if defined(AFS_XBSD_ENV)
    struct mount *mp;
    struct vnode *held_vnode;
#elif defined(AFS_AIX42_ENV)
    dev_t dev;
#else
    afs_int32 dev;
#endif
};

struct afs_osi_WaitHandle {
#ifdef AFS_FBSD_ENV
    struct cv wh_condvar;
    int wh_inited;
#else
    caddr_t proc;		/* process waiting */
#endif
};

#define	osi_SetFileProc(x,p)	((x)->proc=(p))
#define	osi_SetFileRock(x,r)	((x)->rock=(r))
#define	osi_GetFileProc(x)	((x)->proc)
#define	osi_GetFileRock(x)	((x)->rock)

#ifdef	AFS_TEXT_ENV
#define osi_FlushText(vp) if (hcmp((vp)->f.m.DataVersion, (vp)->flushDV) > 0) \
			    osi_FlushText_really(vp)
#else
#define osi_FlushText(vp)
#endif


#define AFSOP_STOP_RXEVENT   214	/* stop rx event deamon */
#define AFSOP_STOP_COMPLETE  215	/* afs has been shutdown */
#define AFSOP_STOP_RXK_LISTENER   217	/* stop rx listener daemon */


#define	osi_NPACKETS	20	/* number of cluster pkts to alloc */


/*
 * Default vnode related macros
 *
 * Darwin, all of the BSDs, and Linux have their own
 */
#if !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV) && !defined(AFS_LINUX20_ENV)
# define	vType(vc)	    AFSTOV(vc)->v_type
# define	vSetType(vc,type)   AFSTOV(vc)->v_type = (type)
# define	vSetVfsp(vc,vfsp)   AFSTOV(vc)->v_vfsp = (vfsp)
extern struct vnodeops *afs_ops;
# define	IsAfsVnode(v)	    ((v)->v_op == afs_ops)
# define	SetAfsVnode(v)	    (v)->v_op = afs_ops
#endif

struct vcache;
extern int osi_TryEvictVCache(struct vcache *, int *, int);
extern struct vcache *osi_NewVnode(void);
extern void osi_PrePopulateVCache(struct vcache *);
extern void osi_PostPopulateVCache(struct vcache *);
extern void osi_AttachVnode(struct vcache *, int seq);

/*
 * In IRIX 6.5 and NetBSD we cannot have DEBUG turned on since certain
 * system-defined structures are a different size with DEBUG on, the
 * kernel is compiled without DEBUG on, and the resulting differences
 * would break our ability to interact with the rest of the kernel.
 *
 * Is DEBUG only for turning the ASSERT() macro?  If so, we should
 * be able to eliminate DEBUG entirely.
 */
#if !defined(AFS_SGI65_ENV) && !defined(AFS_NBSD_ENV)
#ifndef	DEBUG
#define	DEBUG	1		/* Default is to enable debugging/logging */
#endif
#endif

/*
 * Time related macros
 */
#define osi_GetuTime(x) osi_GetTime(x)

/* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
/** In 64 bit Solaris the timeval structure has members that are 64 bit
  * In the GetTime() interface we expect pointers to afs_int32. So the need to
  * define osi_timeval_t to have 32 bit members. To make this less ambiguous
  * we now use 32 bit quantities consistently all over the code.
  * In 64 bit HP-UX the timeval structure has a 64 bit member.
  */

#if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
typedef struct {
    afs_int32 tv_sec;
    afs_int32 tv_usec;
} osi_timeval_t;
typedef struct {
    afs_int32 tv_sec;
    afs_int32 tv_usec;
} osi_timeval32_t;
#elif defined(AFS_SUN5_ENV)
typedef struct timeval32 osi_timeval_t;
typedef struct timeval32 osi_timeval32_t;
#else
typedef struct timeval osi_timeval_t;
typedef struct timeval osi_timeval32_t;
#endif /* AFS_SGI61_ENV */

#ifndef UKERNEL
#define osi_getpid() 		getpid()
#endif

/*
 * osi_ThreadUnique() should yield a value that can be found in ps
 * output in order to draw correspondences between ICL traces and what
 * is going on in the system.  So if ps cannot show thread IDs it is
 * likely to be the process ID instead.
 */
#ifdef AFS_FBSD_ENV
/* should use curthread, but 'ps' can't display it */
#define osi_ThreadUnique()	(curproc->p_pid)
#elif defined(UKERNEL)
#define osi_ThreadUnique()	osi_getpid()
#else
#define osi_ThreadUnique()	getpid()
#endif


#ifdef AFS_GLOBAL_SUNLOCK
#define AFS_ASSERT_GLOCK() \
    do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
#endif /* AFS_GLOBAL_SUNLOCK */

#ifdef RX_ENABLE_LOCKS
#define RX_AFS_GLOCK()		AFS_GLOCK()
#define RX_AFS_GUNLOCK()	AFS_GUNLOCK()
#else
#define RX_AFS_GLOCK()
#define RX_AFS_GUNLOCK()
#endif


#ifndef KERNEL
#define AFS_GLOCK()
#define AFS_GUNLOCK()
#define ISAFS_GLOCK() 1
#define AFS_ASSERT_GLOCK()
#endif

/* On an MP that uses multithreading, splnet is not sufficient to provide
 * mutual exclusion because the other processors will not see it.  On some
 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
 * mutex, which this works in the UP expected way, it means that the whole MP
 * can only take one interrupt at a time; a serious performance penalty. */

#if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
#define SPLVAR
#define NETPRI
#define USERPRI
#endif

/*
 * vnode/vcache ref count manipulation
 */
#if defined(UKERNEL)
#define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
#else /* defined(UKERNEL) */
#define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
#endif /* defined(UKERNEL) */

/*
 * For some reason we do bare refcount manipulation in some places, for some
 * platforms.  The assumption is apparently that either we wouldn't call
 * afs_inactive anyway (because we know the ref count is high), or that it's
 * OK not to call it (because we don't expect CUnlinked or CDirty).
 * (Also, of course, the vnode is assumed to be one of ours.  Can't use this
 * macro for V-file vnodes.)
 */
/* osi_vnhold is defined in PLATFORM/osi_machdep.h */
#define AFS_FAST_HOLD(vp) osi_vnhold((vp), 0)

#ifdef AFS_AIX_ENV
#define AFS_FAST_RELE(vp) VREFCOUNT_DEC(vp)
#else
#define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
#endif

/*
 * MP safe versions of routines to copy memory between user space
 * and kernel space. Call these to avoid taking page faults while
 * holding the global lock.
 */
#if defined(CAST_USER_ADDR_T) && !defined(UKERNEL) && !defined(AFS_DARWIN100_ENV)
#define __U(X) CAST_USER_ADDR_T((X))
#else
#define __U(X) (X)
#endif
#ifdef AFS_GLOBAL_SUNLOCK

#define AFS_COPYIN(SRC,DST,LEN,CODE)				\
	do {							\
	    int haveGlock = ISAFS_GLOCK();			\
	    if (haveGlock)					\
		AFS_GUNLOCK();					\
	    CODE = copyin(__U((SRC)),(DST),(LEN));	\
	    if (haveGlock)					\
		AFS_GLOCK();					\
	} while(0)

#define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE)			\
	do {							\
	    int haveGlock = ISAFS_GLOCK();			\
	    if (haveGlock)					\
		AFS_GUNLOCK();					\
	    CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT));		\
	    if (haveGlock)					\
		AFS_GLOCK();					\
	} while(0)

#define AFS_COPYOUT(SRC,DST,LEN,CODE)				\
	do {							\
	    int haveGlock = ISAFS_GLOCK();			\
	    if (haveGlock)					\
		AFS_GUNLOCK();					\
	    CODE = copyout((SRC),__U((DST)),(LEN));			\
	    if (haveGlock)					\
		AFS_GLOCK();					\
	} while(0)

#if defined(AFS_DARWIN80_ENV)
#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE)			\
	do {							\
	    int haveGlock = ISAFS_GLOCK();			\
	    if (haveGlock)					\
		AFS_GUNLOCK();					\
	    uio_setrw((UIO),(RW));				\
	    CODE = uiomove((SRC),(LEN),(UIO));			\
	    if (haveGlock)					\
		AFS_GLOCK();					\
	} while(0)
#else
#if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE)			\
	do {							\
	    int haveGlock = ISAFS_GLOCK();			\
	    if (haveGlock)					\
		AFS_GUNLOCK();					\
	    (UIO)->uio_rw = (RW);				\
	    CODE = uiomove((SRC),(LEN),(UIO));			\
	    if (haveGlock)					\
		AFS_GLOCK();					\
	} while(0)
#else
#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE)			\
	do {							\
	    int haveGlock = ISAFS_GLOCK();			\
	    if (haveGlock)					\
		AFS_GUNLOCK();					\
	    CODE = uiomove((SRC),(LEN),(RW),(UIO));		\
	    if (haveGlock)					\
		AFS_GLOCK();					\
	} while(0)
#endif
#endif /* AFS_DARWIN80_ENV */

#else /* AFS_GLOBAL_SUNLOCK */

#define AFS_COPYIN(SRC,DST,LEN,CODE)				\
	do {							\
	    CODE = copyin(__U((SRC)),(DST),(LEN));			\
	} while(0)

#define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE)			\
	do {							\
	    CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT));		\
	} while(0)

#define AFS_COPYOUT(SRC,DST,LEN,CODE)				\
	do {							\
	    CODE = copyout((SRC),__U((DST)),(LEN));			\
	} while(0)

#if defined(AFS_DARWIN80_ENV)
#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE)			\
	do {							\
	    uio_setrw((UIO),(RW));				\
	    CODE = uiomove((SRC),(LEN),(UIO));			\
	} while(0)
#elif defined(AFS_DARWIN_ENV) || (defined(AFS_XBSD_ENV) && !defined(AFS_NBSD40_ENV))
#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE)			\
	do {							\
	    (UIO)->uio_rw = (RW);				\
	    CODE = uiomove((SRC),(LEN),(UIO));			\
	} while(0)
#else
#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE)			\
	do {							\
	    CODE = uiomove((SRC),(LEN),(RW),(UIO));		\
	} while(0)
#endif

#endif /* AFS_GLOBAL_SUNLOCK */

#ifdef AFS_DARWIN80_ENV
#define AFS_UIO_OFFSET(uio) uio_offset(uio)
#define AFS_UIO_RESID(uio) (int)uio_resid(uio)
#define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
#define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
#else
#define AFS_UIO_OFFSET(uio) (uio)->uio_offset
#define AFS_UIO_RESID(uio) (uio)->uio_resid
#define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
#define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
#endif


/*
 * encapsulation of kernel data structure accesses
 */
#ifndef UKERNEL
#define setuerror(erval)	u.u_error = (erval)
#define getuerror()		u.u_error
#endif

/* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
 * These are required for IRIX 6.4 and later, which pass behavior pointers.
 * Note that the _CONVERT routines get the ";" here so that argument lists
 * can have arguments after the OSI_x_CONVERT macro is called.
 */
#define OSI_VN_ARG(V) V
#define OSI_VN_DECL(V) struct vnode *V
#define OSI_VN_CONVERT(V)
#define OSI_VC_ARG(V) V
#define OSI_VC_DECL(V) struct vcache *V
#define OSI_VC_CONVERT(V)
#define OSI_VFS_ARG(V) V
#define OSI_VFS_DECL(V) struct vfs *V
#define OSI_VFS_CONVERT(V)


/*
** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
*/
#define AfsLargeFileUio(uio)       0
#define AfsLargeFileSize(pos, off) 0

/* Now include system specific OSI header file. It will redefine macros
 * defined here as required by the OS.
 */
#include "osi_machdep.h"

/* Declare any structures which use these macros after the OSI implementation
 * has had the opportunity to redefine them.
 */
extern afs_ucred_t afs_osi_cred, *afs_osi_credp;

#ifndef osi_curcred
#define osi_curcred() (u.u_cred)
#endif

#ifdef AFS_PAG_ONEGROUP_ENV
#define AFS_NUMPAGGROUPS 1
#else
#define AFS_NUMPAGGROUPS 2
#endif

#endif /* _AFS_OSI_ */
Commit	Line	Data
	1	/*
	2	* Copyright 2000, International Business Machines Corporation and others.
	3	* All Rights Reserved.
	4	*
	5	* This software has been released under the terms of the IBM Public
	6	* License. For details, see the LICENSE file in the top-level source
	7	* directory or online at http://www.openafs.org/dl/license10.html
	8	*/
	9
	10	#ifndef _AFS_OSI_
	11	#define _AFS_OSI_
	12
	13	#include "h/types.h"
	14	#if !defined(AFS_LINUX26_ENV)
	15	#include "h/param.h"
	16	#endif
	17
	18	#ifdef AFS_FBSD_ENV
	19	#include <sys/condvar.h>
	20	#endif
	21
	22	#ifdef AFS_NBSD_ENV
	23	#include <sys/lock.h>
	24	#endif
	25
	26	#ifdef AFS_LINUX20_ENV
	27	#ifndef _LINUX_CODA_FS_I
	28	#define _LINUX_CODA_FS_I
	29	#define _CODA_HEADER_
	30	struct coda_inode_info {
	31	};
	32	#endif
	33	#ifndef _LINUX_XFS_FS_I
	34	#define _LINUX_XFS_FS_I
	35	struct xfs_inode_info {
	36	};
	37	#endif
	38	#include "h/fs.h"
	39	#include "h/mm.h"
	40	#endif
	41
	42	#if defined(AFS_NBSD50_ENV)
	43	# if !defined(DEF_CADDR_T)
	44	typedef char * caddr_t;
	45	#define DEF_CADDR_T
	46	# endif
	47	#endif
	48
	49
	50	/* this is just a dummy type decl, we're really using struct sockets here */
	51	struct osi_socket {
	52	int junk;
	53	};
	54
	55	struct osi_stat {
	56	afs_int32 size; /* file size in bytes */
	57	afs_int32 mtime; /* modification date */
	58	afs_int32 atime; /* access time */
	59	};
	60
	61	struct osi_file {
	62	afs_int32 size; /* file size in bytes XXX Must be first field XXX */
	63	#ifdef AFS_LINUX26_ENV
	64	struct file filp; / May need this if we really open the file. */
	65	#else
	66	#ifdef AFS_LINUX22_ENV
	67	struct dentry dentry; /* merely to hold the pointer to the inode. */
	68	struct file file; /* May need this if we really open the file. */
	69	#else
	70	struct vnode *vnode;
	71	#endif
	72	#endif
	73	#if defined(AFS_HPUX102_ENV)
	74	k_off_t offset;
	75	#else
	76	#if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
	77	afs_offs_t offset;
	78	#else
	79	afs_int32 offset;
	80	#endif
	81	#endif
	82	int (proc) (struct osi_file afile, afs_int32 code); /* proc, which, if not null, is called on writes */
	83	char rock; / rock passed to proc */
	84	#if defined(UKERNEL)
	85	int fd; /* file descriptor for user space files */
	86	#endif /* defined(UKERNEL) */
	87	};
	88
	89	struct osi_dev {
	90	#if defined(AFS_XBSD_ENV)
	91	struct mount *mp;
	92	struct vnode *held_vnode;
	93	#elif defined(AFS_AIX42_ENV)
	94	dev_t dev;
	95	#else
	96	afs_int32 dev;
	97	#endif
	98	};
	99
	100	struct afs_osi_WaitHandle {
	101	#ifdef AFS_FBSD_ENV
	102	struct cv wh_condvar;
	103	int wh_inited;
	104	#else
	105	caddr_t proc; /* process waiting */
	106	#endif
	107	};
	108
	109	#define osi_SetFileProc(x,p) ((x)->proc=(p))
	110	#define osi_SetFileRock(x,r) ((x)->rock=(r))
	111	#define osi_GetFileProc(x) ((x)->proc)
	112	#define osi_GetFileRock(x) ((x)->rock)
	113
	114	#ifdef AFS_TEXT_ENV
	115	#define osi_FlushText(vp) if (hcmp((vp)->f.m.DataVersion, (vp)->flushDV) > 0) \
	116	osi_FlushText_really(vp)
	117	#else
	118	#define osi_FlushText(vp)
	119	#endif
	120
	121
	122	#define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
	123	#define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
	124	#define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
	125
	126
	127	#define osi_NPACKETS 20 /* number of cluster pkts to alloc */
	128
	129
	130
	131	/*
	132	* Default vnode related macros
	133	*
	134	* Darwin, all of the BSDs, and Linux have their own
	135	*/
	136	#if !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV) && !defined(AFS_LINUX20_ENV)
	137	# define vType(vc) AFSTOV(vc)->v_type
	138	# define vSetType(vc,type) AFSTOV(vc)->v_type = (type)
	139	# define vSetVfsp(vc,vfsp) AFSTOV(vc)->v_vfsp = (vfsp)
	140	extern struct vnodeops *afs_ops;
	141	# define IsAfsVnode(v) ((v)->v_op == afs_ops)
	142	# define SetAfsVnode(v) (v)->v_op = afs_ops
	143	#endif
	144
	145	struct vcache;
	146	extern int osi_TryEvictVCache(struct vcache , int , int);
	147	extern struct vcache *osi_NewVnode(void);
	148	extern void osi_PrePopulateVCache(struct vcache *);
	149	extern void osi_PostPopulateVCache(struct vcache *);
	150	extern void osi_AttachVnode(struct vcache *, int seq);
	151
	152	/*
	153	* In IRIX 6.5 and NetBSD we cannot have DEBUG turned on since certain
	154	* system-defined structures are a different size with DEBUG on, the
	155	* kernel is compiled without DEBUG on, and the resulting differences
	156	* would break our ability to interact with the rest of the kernel.
	157	*
	158	* Is DEBUG only for turning the ASSERT() macro? If so, we should
	159	* be able to eliminate DEBUG entirely.
	160	*/
	161	#if !defined(AFS_SGI65_ENV) && !defined(AFS_NBSD_ENV)
	162	#ifndef DEBUG
	163	#define DEBUG 1 /* Default is to enable debugging/logging */
	164	#endif
	165	#endif
	166
	167	/*
	168	* Time related macros
	169	*/
	170	#define osi_GetuTime(x) osi_GetTime(x)
	171
	172	/* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
	173	/** In 64 bit Solaris the timeval structure has members that are 64 bit
	174	* In the GetTime() interface we expect pointers to afs_int32. So the need to
	175	* define osi_timeval_t to have 32 bit members. To make this less ambiguous
	176	* we now use 32 bit quantities consistently all over the code.
	177	* In 64 bit HP-UX the timeval structure has a 64 bit member.
	178	*/
	179
	180	#if defined(AFS_HPUX_ENV) \|\| defined(AFS_LINUX_64BIT_KERNEL) \|\| (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
	181	typedef struct {
	182	afs_int32 tv_sec;
	183	afs_int32 tv_usec;
	184	} osi_timeval_t;
	185	typedef struct {
	186	afs_int32 tv_sec;
	187	afs_int32 tv_usec;
	188	} osi_timeval32_t;
	189	#elif defined(AFS_SUN5_ENV)
	190	typedef struct timeval32 osi_timeval_t;
	191	typedef struct timeval32 osi_timeval32_t;
	192	#else
	193	typedef struct timeval osi_timeval_t;
	194	typedef struct timeval osi_timeval32_t;
	195	#endif /* AFS_SGI61_ENV */
	196
	197	#ifndef UKERNEL
	198	#define osi_getpid() getpid()
	199	#endif
	200
	201	/*
	202	* osi_ThreadUnique() should yield a value that can be found in ps
	203	* output in order to draw correspondences between ICL traces and what
	204	* is going on in the system. So if ps cannot show thread IDs it is
	205	* likely to be the process ID instead.
	206	*/
	207	#ifdef AFS_FBSD_ENV
	208	/* should use curthread, but 'ps' can't display it */
	209	#define osi_ThreadUnique() (curproc->p_pid)
	210	#elif defined(UKERNEL)
	211	#define osi_ThreadUnique() osi_getpid()
	212	#else
	213	#define osi_ThreadUnique() getpid()
	214	#endif
	215
	216
	217
	218	#ifdef AFS_GLOBAL_SUNLOCK
	219	#define AFS_ASSERT_GLOCK() \
	220	do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
	221	#endif /* AFS_GLOBAL_SUNLOCK */
	222
	223	#ifdef RX_ENABLE_LOCKS
	224	#define RX_AFS_GLOCK() AFS_GLOCK()
	225	#define RX_AFS_GUNLOCK() AFS_GUNLOCK()
	226	#else
	227	#define RX_AFS_GLOCK()
	228	#define RX_AFS_GUNLOCK()
	229	#endif
	230
	231
	232
	233	#ifndef KERNEL
	234	#define AFS_GLOCK()
	235	#define AFS_GUNLOCK()
	236	#define ISAFS_GLOCK() 1
	237	#define AFS_ASSERT_GLOCK()
	238	#endif
	239
	240	/* On an MP that uses multithreading, splnet is not sufficient to provide
	241	* mutual exclusion because the other processors will not see it. On some
	242	* early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
	243	* mutex, which this works in the UP expected way, it means that the whole MP
	244	* can only take one interrupt at a time; a serious performance penalty. */
	245
	246	#if ((defined(AFS_GLOBAL_SUNLOCK) \|\| defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) \|\| !defined(KERNEL)
	247	#define SPLVAR
	248	#define NETPRI
	249	#define USERPRI
	250	#endif
	251
	252	/*
	253	* vnode/vcache ref count manipulation
	254	*/
	255	#if defined(UKERNEL)
	256	#define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
	257	#else /* defined(UKERNEL) */
	258	#define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
	259	#endif /* defined(UKERNEL) */
	260
	261	/*
	262	* For some reason we do bare refcount manipulation in some places, for some
	263	* platforms. The assumption is apparently that either we wouldn't call
	264	* afs_inactive anyway (because we know the ref count is high), or that it's
	265	* OK not to call it (because we don't expect CUnlinked or CDirty).
	266	* (Also, of course, the vnode is assumed to be one of ours. Can't use this
	267	* macro for V-file vnodes.)
	268	*/
	269	/* osi_vnhold is defined in PLATFORM/osi_machdep.h */
	270	#define AFS_FAST_HOLD(vp) osi_vnhold((vp), 0)
	271
	272	#ifdef AFS_AIX_ENV
	273	#define AFS_FAST_RELE(vp) VREFCOUNT_DEC(vp)
	274	#else
	275	#define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
	276	#endif
	277
	278	/*
	279	* MP safe versions of routines to copy memory between user space
	280	* and kernel space. Call these to avoid taking page faults while
	281	* holding the global lock.
	282	*/
	283	#if defined(CAST_USER_ADDR_T) && !defined(UKERNEL) && !defined(AFS_DARWIN100_ENV)
	284	#define __U(X) CAST_USER_ADDR_T((X))
	285	#else
	286	#define __U(X) (X)
	287	#endif
	288	#ifdef AFS_GLOBAL_SUNLOCK
	289
	290	#define AFS_COPYIN(SRC,DST,LEN,CODE) \
	291	do { \
	292	int haveGlock = ISAFS_GLOCK(); \
	293	if (haveGlock) \
	294	AFS_GUNLOCK(); \
	295	CODE = copyin(__U((SRC)),(DST),(LEN)); \
	296	if (haveGlock) \
	297	AFS_GLOCK(); \
	298	} while(0)
	299
	300	#define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
	301	do { \
	302	int haveGlock = ISAFS_GLOCK(); \
	303	if (haveGlock) \
	304	AFS_GUNLOCK(); \
	305	CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
	306	if (haveGlock) \
	307	AFS_GLOCK(); \
	308	} while(0)
	309
	310	#define AFS_COPYOUT(SRC,DST,LEN,CODE) \
	311	do { \
	312	int haveGlock = ISAFS_GLOCK(); \
	313	if (haveGlock) \
	314	AFS_GUNLOCK(); \
	315	CODE = copyout((SRC),__U((DST)),(LEN)); \
	316	if (haveGlock) \
	317	AFS_GLOCK(); \
	318	} while(0)
	319
	320	#if defined(AFS_DARWIN80_ENV)
	321	#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
	322	do { \
	323	int haveGlock = ISAFS_GLOCK(); \
	324	if (haveGlock) \
	325	AFS_GUNLOCK(); \
	326	uio_setrw((UIO),(RW)); \
	327	CODE = uiomove((SRC),(LEN),(UIO)); \
	328	if (haveGlock) \
	329	AFS_GLOCK(); \
	330	} while(0)
	331	#else
	332	#if defined(AFS_DARWIN_ENV) \|\| defined(AFS_XBSD_ENV)
	333	#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
	334	do { \
	335	int haveGlock = ISAFS_GLOCK(); \
	336	if (haveGlock) \
	337	AFS_GUNLOCK(); \
	338	(UIO)->uio_rw = (RW); \
	339	CODE = uiomove((SRC),(LEN),(UIO)); \
	340	if (haveGlock) \
	341	AFS_GLOCK(); \
	342	} while(0)
	343	#else
	344	#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
	345	do { \
	346	int haveGlock = ISAFS_GLOCK(); \
	347	if (haveGlock) \
	348	AFS_GUNLOCK(); \
	349	CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
	350	if (haveGlock) \
	351	AFS_GLOCK(); \
	352	} while(0)
	353	#endif
	354	#endif /* AFS_DARWIN80_ENV */
	355
	356	#else /* AFS_GLOBAL_SUNLOCK */
	357
	358	#define AFS_COPYIN(SRC,DST,LEN,CODE) \
	359	do { \
	360	CODE = copyin(__U((SRC)),(DST),(LEN)); \
	361	} while(0)
	362
	363	#define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
	364	do { \
	365	CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
	366	} while(0)
	367
	368	#define AFS_COPYOUT(SRC,DST,LEN,CODE) \
	369	do { \
	370	CODE = copyout((SRC),__U((DST)),(LEN)); \
	371	} while(0)
	372
	373	#if defined(AFS_DARWIN80_ENV)
	374	#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
	375	do { \
	376	uio_setrw((UIO),(RW)); \
	377	CODE = uiomove((SRC),(LEN),(UIO)); \
	378	} while(0)
	379	#elif defined(AFS_DARWIN_ENV) \|\| (defined(AFS_XBSD_ENV) && !defined(AFS_NBSD40_ENV))
	380	#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
	381	do { \
	382	(UIO)->uio_rw = (RW); \
	383	CODE = uiomove((SRC),(LEN),(UIO)); \
	384	} while(0)
	385	#else
	386	#define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
	387	do { \
	388	CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
	389	} while(0)
	390	#endif
	391
	392	#endif /* AFS_GLOBAL_SUNLOCK */
	393
	394	#ifdef AFS_DARWIN80_ENV
	395	#define AFS_UIO_OFFSET(uio) uio_offset(uio)
	396	#define AFS_UIO_RESID(uio) (int)uio_resid(uio)
	397	#define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
	398	#define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
	399	#else
	400	#define AFS_UIO_OFFSET(uio) (uio)->uio_offset
	401	#define AFS_UIO_RESID(uio) (uio)->uio_resid
	402	#define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
	403	#define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
	404	#endif
	405
	406
	407	/*
	408	* encapsulation of kernel data structure accesses
	409	*/
	410	#ifndef UKERNEL
	411	#define setuerror(erval) u.u_error = (erval)
	412	#define getuerror() u.u_error
	413	#endif
	414
	415	/* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
	416	* These are required for IRIX 6.4 and later, which pass behavior pointers.
	417	* Note that the _CONVERT routines get the ";" here so that argument lists
	418	* can have arguments after the OSI_x_CONVERT macro is called.
	419	*/
	420	#define OSI_VN_ARG(V) V
	421	#define OSI_VN_DECL(V) struct vnode *V
	422	#define OSI_VN_CONVERT(V)
	423	#define OSI_VC_ARG(V) V
	424	#define OSI_VC_DECL(V) struct vcache *V
	425	#define OSI_VC_CONVERT(V)
	426	#define OSI_VFS_ARG(V) V
	427	#define OSI_VFS_DECL(V) struct vfs *V
	428	#define OSI_VFS_CONVERT(V)
	429
	430
	431	/*
	432	** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
	433	*/
	434	#define AfsLargeFileUio(uio) 0
	435	#define AfsLargeFileSize(pos, off) 0
	436
	437	/* Now include system specific OSI header file. It will redefine macros
	438	* defined here as required by the OS.
	439	*/
	440	#include "osi_machdep.h"
	441
	442	/* Declare any structures which use these macros after the OSI implementation
	443	* has had the opportunity to redefine them.
	444	*/
	445	extern afs_ucred_t afs_osi_cred, *afs_osi_credp;
	446
	447	#ifndef osi_curcred
	448	#define osi_curcred() (u.u_cred)
	449	#endif
	450
	451	#ifdef AFS_PAG_ONEGROUP_ENV
	452	#define AFS_NUMPAGGROUPS 1
	453	#else
	454	#define AFS_NUMPAGGROUPS 2
	455	#endif
	456
	457	#endif /* _AFS_OSI_ */