2 * Copyright 2000, International Business Machines Corporation and others.
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
14 #if !defined(AFS_LINUX26_ENV)
19 #include <sys/condvar.h>
26 #ifdef AFS_LINUX20_ENV
27 #ifndef _LINUX_CODA_FS_I
28 #define _LINUX_CODA_FS_I
30 struct coda_inode_info {
33 #ifndef _LINUX_XFS_FS_I
34 #define _LINUX_XFS_FS_I
35 struct xfs_inode_info {
42 #if defined(AFS_NBSD50_ENV)
43 # if !defined(DEF_CADDR_T)
44 typedef char * caddr_t;
50 /* this is just a dummy type decl, we're really using struct sockets here */
56 afs_int32 size; /* file size in bytes */
57 afs_int32 mtime; /* modification date */
58 afs_int32 atime; /* access time */
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. */
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. */
73 #if defined(AFS_HPUX102_ENV)
76 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
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 */
85 int fd; /* file descriptor for user space files */
86 #endif /* defined(UKERNEL) */
90 #if defined(AFS_XBSD_ENV)
92 struct vnode *held_vnode;
93 #elif defined(AFS_AIX42_ENV)
100 struct afs_osi_WaitHandle {
102 struct cv wh_condvar;
105 caddr_t proc; /* process waiting */
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)
115 #define osi_FlushText(vp) if (hcmp((vp)->f.m.DataVersion, (vp)->flushDV) > 0) \
116 osi_FlushText_really(vp)
118 #define osi_FlushText(vp)
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 */
127 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
132 * Default vnode related macros
134 * Darwin, all of the BSDs, and Linux have their own
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
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);
153 * Increment the refcount on the given vcache.
156 * @retval nonzero Error obtaining reference; the vcache is no longer valid and
157 * the caller should act as if it doesn't exist.
159 extern int osi_vnhold(struct vcache *);
162 * In IRIX 6.5 and NetBSD we cannot have DEBUG turned on since certain
163 * system-defined structures are a different size with DEBUG on, the
164 * kernel is compiled without DEBUG on, and the resulting differences
165 * would break our ability to interact with the rest of the kernel.
167 * Is DEBUG only for turning the ASSERT() macro? If so, we should
168 * be able to eliminate DEBUG entirely.
170 #if !defined(AFS_SGI65_ENV) && !defined(AFS_NBSD_ENV)
172 #define DEBUG 1 /* Default is to enable debugging/logging */
177 * Time related macros
179 #define osi_GetuTime(x) osi_GetTime(x)
181 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
182 /** In 64 bit Solaris the timeval structure has members that are 64 bit
183 * In the GetTime() interface we expect pointers to afs_int32. So the need to
184 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
185 * we now use 32 bit quantities consistently all over the code.
186 * In 64 bit HP-UX the timeval structure has a 64 bit member.
189 #if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_LINUX26_ENV) && !defined(HAVE_LINUX_TIME_T)) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
198 #elif defined(AFS_SUN5_ENV)
199 typedef struct timeval32 osi_timeval_t;
200 typedef struct timeval32 osi_timeval32_t;
202 typedef struct timeval osi_timeval_t;
203 typedef struct timeval osi_timeval32_t;
204 #endif /* AFS_SGI61_ENV */
207 #define osi_getpid() getpid()
211 * osi_ThreadUnique() should yield a value that can be found in ps
212 * output in order to draw correspondences between ICL traces and what
213 * is going on in the system. So if ps cannot show thread IDs it is
214 * likely to be the process ID instead.
217 /* should use curthread, but 'ps' can't display it */
218 #define osi_ThreadUnique() (curproc->p_pid)
219 #elif defined(UKERNEL)
220 #define osi_ThreadUnique() osi_getpid()
222 #define osi_ThreadUnique() getpid()
227 #ifdef AFS_GLOBAL_SUNLOCK
228 #define AFS_ASSERT_GLOCK() \
229 do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
230 #endif /* AFS_GLOBAL_SUNLOCK */
232 #ifdef RX_ENABLE_LOCKS
233 #define RX_AFS_GLOCK() AFS_GLOCK()
234 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
236 #define RX_AFS_GLOCK()
237 #define RX_AFS_GUNLOCK()
244 #define AFS_GUNLOCK()
245 #define ISAFS_GLOCK() 1
246 #define AFS_ASSERT_GLOCK()
249 /* On an MP that uses multithreading, splnet is not sufficient to provide
250 * mutual exclusion because the other processors will not see it. On some
251 * early multiprocessors (SGI5.2) splnet actually obtains a global
252 * mutex, which this works in the UP expected way, it means that the whole MP
253 * can only take one interrupt at a time; a serious performance penalty. */
255 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
262 * vnode/vcache ref count manipulation
265 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
266 #else /* defined(UKERNEL) */
267 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
268 #endif /* defined(UKERNEL) */
271 * For some reason we do bare refcount manipulation in some places, for some
272 * platforms. The assumption is apparently that either we wouldn't call
273 * afs_inactive anyway (because we know the ref count is high), or that it's
274 * OK not to call it (because we don't expect CUnlinked or CDirty).
275 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
276 * macro for V-file vnodes.)
279 #define AFS_FAST_RELE(vp) VREFCOUNT_DEC(vp)
281 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
285 * MP safe versions of routines to copy memory between user space
286 * and kernel space. Call these to avoid taking page faults while
287 * holding the global lock.
289 #if defined(CAST_USER_ADDR_T) && !defined(UKERNEL) && !defined(AFS_DARWIN100_ENV)
290 #define __U(X) CAST_USER_ADDR_T((X))
294 #ifdef AFS_GLOBAL_SUNLOCK
296 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
298 int haveGlock = ISAFS_GLOCK(); \
301 CODE = copyin(__U((SRC)),(DST),(LEN)); \
306 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
308 int haveGlock = ISAFS_GLOCK(); \
311 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
316 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
318 int haveGlock = ISAFS_GLOCK(); \
321 CODE = copyout((SRC),__U((DST)),(LEN)); \
326 #if defined(AFS_DARWIN80_ENV)
327 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
329 int haveGlock = ISAFS_GLOCK(); \
332 uio_setrw((UIO),(RW)); \
333 CODE = uiomove((SRC),(LEN),(UIO)); \
338 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
339 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
341 int haveGlock = ISAFS_GLOCK(); \
344 (UIO)->uio_rw = (RW); \
345 CODE = uiomove((SRC),(LEN),(UIO)); \
350 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
352 int haveGlock = ISAFS_GLOCK(); \
355 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
360 #endif /* AFS_DARWIN80_ENV */
362 #else /* AFS_GLOBAL_SUNLOCK */
364 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
366 CODE = copyin(__U((SRC)),(DST),(LEN)); \
369 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
371 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
374 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
376 CODE = copyout((SRC),__U((DST)),(LEN)); \
379 #if defined(AFS_DARWIN80_ENV)
380 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
382 uio_setrw((UIO),(RW)); \
383 CODE = uiomove((SRC),(LEN),(UIO)); \
385 #elif defined(AFS_DARWIN_ENV) || (defined(AFS_XBSD_ENV) && !defined(AFS_NBSD40_ENV))
386 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
388 (UIO)->uio_rw = (RW); \
389 CODE = uiomove((SRC),(LEN),(UIO)); \
392 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
394 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
398 #endif /* AFS_GLOBAL_SUNLOCK */
400 #ifdef AFS_DARWIN80_ENV
401 #define AFS_UIO_OFFSET(uio) uio_offset(uio)
402 #define AFS_UIO_RESID(uio) (int)uio_resid(uio)
403 #define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
404 #define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
406 #define AFS_UIO_OFFSET(uio) (uio)->uio_offset
407 #define AFS_UIO_RESID(uio) (uio)->uio_resid
408 #define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
409 #define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
414 * encapsulation of kernel data structure accesses
417 #define setuerror(erval) u.u_error = (erval)
418 #define getuerror() u.u_error
421 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
422 * These are required for IRIX 6.4 and later, which pass behavior pointers.
423 * Note that the _CONVERT routines get the ";" here so that argument lists
424 * can have arguments after the OSI_x_CONVERT macro is called.
426 #define OSI_VN_ARG(V) V
427 #define OSI_VN_DECL(V) struct vnode *V
428 #define OSI_VN_CONVERT(V)
429 #define OSI_VC_ARG(V) V
430 #define OSI_VC_DECL(V) struct vcache *V
431 #define OSI_VC_CONVERT(V)
432 #define OSI_VFS_ARG(V) V
433 #define OSI_VFS_DECL(V) struct vfs *V
434 #define OSI_VFS_CONVERT(V)
438 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
440 #define AfsLargeFileUio(uio) 0
441 #define AfsLargeFileSize(pos, off) 0
443 /* Now include system specific OSI header file. It will redefine macros
444 * defined here as required by the OS.
446 #include "osi_machdep.h"
448 /* Declare any structures which use these macros after the OSI implementation
449 * has had the opportunity to redefine them.
451 extern afs_ucred_t afs_osi_cred, *afs_osi_credp;
454 #define osi_curcred() (u.u_cred)
457 #ifdef AFS_PAG_ONEGROUP_ENV
458 #define AFS_NUMPAGGROUPS 1
460 #define AFS_NUMPAGGROUPS 2
463 #endif /* _AFS_OSI_ */