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
17 #include <sys/condvar.h>
20 #ifdef AFS_LINUX20_ENV
21 #ifndef _LINUX_CODA_FS_I
22 #define _LINUX_CODA_FS_I
24 struct coda_inode_info {
27 #ifndef _LINUX_XFS_FS_I
28 #define _LINUX_XFS_FS_I
29 struct xfs_inode_info {
37 /* this is just a dummy type decl, we're really using struct sockets here */
43 afs_int32 size; /* file size in bytes */
44 afs_int32 blksize; /* optimal transfer size in bytes */
45 afs_int32 mtime; /* modification date */
46 afs_int32 atime; /* access time */
50 afs_int32 size; /* file size in bytes XXX Must be first field XXX */
51 #ifdef AFS_LINUX26_ENV
52 struct file *filp; /* May need this if we really open the file. */
54 #ifdef AFS_LINUX22_ENV
55 struct dentry dentry; /* merely to hold the pointer to the inode. */
56 struct file file; /* May need this if we really open the file. */
61 #if defined(AFS_HPUX102_ENV)
64 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
70 int (*proc) (struct osi_file * afile, afs_int32 code); /* proc, which, if not null, is called on writes */
71 char *rock; /* rock passed to proc */
72 ino_t inum; /* guarantee validity of hint */
74 int fd; /* file descriptor for user space files */
75 #endif /* defined(UKERNEL) */
79 #if defined(AFS_XBSD_ENV)
81 struct vnode *held_vnode;
82 #elif defined(AFS_AIX42_ENV)
89 struct afs_osi_WaitHandle {
92 int wh_inited; /* XXX */
94 caddr_t proc; /* process waiting */
98 #define osi_SetFileProc(x,p) ((x)->proc=(p))
99 #define osi_SetFileRock(x,r) ((x)->rock=(r))
100 #define osi_GetFileProc(x) ((x)->proc)
101 #define osi_GetFileRock(x) ((x)->rock)
104 #define osi_FlushText(vp) if (hcmp((vp)->m.DataVersion, (vp)->flushDV) > 0) \
105 osi_FlushText_really(vp)
107 #define osi_FlushText(vp)
111 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
112 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
113 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
116 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
119 * Alloc declarations.
121 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
124 * Vnode related macros
126 #if defined(AFS_DARWIN80_ENV)
127 #define vType(vc) vnode_vtype(AFSTOV(vc))
128 #define vSetVfsp(vc, vfsp)
129 #define vSetType(vc, type) (vc)->m.Type = (type)
130 extern int afs_vfs_typenum;
131 #define SetAfsVnode(vn) /* nothing; done in getnewvnode() */
132 #define IsAfsVnode(v) (vfs_typenum(vnode_mount((v))) == afs_vfs_typenum)
134 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) || defined(AFS_LINUX22_ENV)
135 #define vSetVfsp(vc, vfsp) AFSTOV(vc)->v_mount = (vfsp)
136 #define vSetType(vc, type) AFSTOV(vc)->v_type = (type)
137 #define vType(vc) AFSTOV(vc)->v_type
139 #define vType(vc) (vc)->v.v_type
140 #define vSetType(vc,type) (vc)->v.v_type = (type)
141 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
143 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
144 extern int (**afs_vnodeop_p) ();
145 #define IsAfsVnode(v) ((v)->v_op == afs_vnodeop_p)
146 #define SetAfsVnode(v) /* nothing; done in getnewvnode() */
148 extern struct vnodeops *afs_ops;
149 #define IsAfsVnode(v) ((v)->v_op == afs_ops)
150 #define SetAfsVnode(v) (v)->v_op = afs_ops
155 #define gop_lookupname(fnamep,segflg,followlink,compvpp) \
156 lookupname((fnamep),(segflg),(followlink),NULL,(compvpp),\
159 #define gop_lookupname(fnamep,segflg,followlink,compvpp) \
160 lookupname((fnamep),(segflg),(followlink),NULL,(compvpp))
164 * In IRIX 6.5 we cannot have DEBUG turned on since certain
165 * system-defined structures are a different size with DEBUG on, the
166 * kernel is compiled without DEBUG on, and the resulting differences
167 * would break our ability to interact with the rest of the kernel.
169 * Is DEBUG only for turning the ASSERT() macro? If so, we should
170 * be able to eliminate DEBUG entirely.
172 #if !defined(AFS_SGI65_ENV)
174 #define DEBUG 1 /* Default is to enable debugging/logging */
179 * Time related macros
181 #define osi_GetuTime(x) osi_GetTime(x)
183 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
184 /** In 64 bit Solaris the timeval structure has members that are 64 bit
185 * In the GetTime() interface we expect pointers to afs_int32. So the need to
186 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
187 * we now use 32 bit quantities consistently all over the code.
188 * In 64 bit HP-UX the timeval structure has a 64 bit member.
191 #if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
196 #elif defined(AFS_SUN57_ENV)
197 typedef struct timeval32 osi_timeval_t;
199 typedef struct timeval osi_timeval_t;
200 #endif /* AFS_SGI61_ENV */
202 #define osi_getpid() getpid()
204 #define osi_getpid() getpid()
207 * osi_ThreadUnique() should yield a value that can be found in ps
208 * output in order to draw correspondences between ICL traces and what
209 * is going on in the system. So if ps cannot show thread IDs it is
210 * likely to be the process ID instead.
212 #ifdef AFS_FBSD50_ENV
213 /* should use curthread, but 'ps' can't display it */
214 #define osi_ThreadUnique() curproc
216 #define osi_ThreadUnique() getpid()
221 #ifdef AFS_GLOBAL_SUNLOCK
222 #define AFS_ASSERT_GLOCK() \
223 do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
224 #endif /* AFS_GLOBAL_SUNLOCK */
226 #ifdef RX_ENABLE_LOCKS
227 #define RX_AFS_GLOCK() AFS_GLOCK()
228 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
230 #define RX_AFS_GLOCK()
231 #define RX_AFS_GUNLOCK()
238 #define AFS_GUNLOCK()
239 #define ISAFS_GLOCK() 1
240 #define AFS_ASSERT_GLOCK()
243 /* On an MP that uses multithreading, splnet is not sufficient to provide
244 * mutual exclusion because the other processors will not see it. On some
245 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
246 * mutex, which this works in the UP expected way, it means that the whole MP
247 * can only take one interrupt at a time; a serious performance penalty. */
249 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
256 * vnode/vcache ref count manipulation
259 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
260 #else /* defined(UKERNEL) */
261 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
262 #endif /* defined(UKERNEL) */
265 * For some reason we do bare refcount manipulation in some places, for some
266 * platforms. The assumption is apparently that either we wouldn't call
267 * afs_inactive anyway (because we know the ref count is high), or that it's
268 * OK not to call it (because we don't expect CUnlinked or CDirty).
269 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
270 * macro for V-file vnodes.)
272 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
273 /* Bare refcount manipulation would probably work on this platform, but just
274 calling VREF does not */
275 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
277 #define AFS_FAST_HOLD(vp) VN_HOLD(AFSTOV(vp))
279 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
282 * MP safe versions of routines to copy memory between user space
283 * and kernel space. Call these to avoid taking page faults while
284 * holding the global lock.
286 #ifdef CAST_USER_ADDR_T
287 #define __U(X) CAST_USER_ADDR_T((X))
291 #ifdef AFS_GLOBAL_SUNLOCK
293 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
295 int haveGlock = ISAFS_GLOCK(); \
298 CODE = copyin(__U((SRC)),(DST),(LEN)); \
303 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
305 int haveGlock = ISAFS_GLOCK(); \
308 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
313 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
315 int haveGlock = ISAFS_GLOCK(); \
318 CODE = copyout((SRC),__U((DST)),(LEN)); \
323 #if defined(AFS_DARWIN80_ENV)
324 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
326 int haveGlock = ISAFS_GLOCK(); \
329 uio_setrw((UIO),(RW)); \
330 CODE = uiomove((SRC),(LEN),(UIO)); \
335 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
336 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
338 int haveGlock = ISAFS_GLOCK(); \
341 (UIO)->uio_rw = (RW); \
342 CODE = uiomove((SRC),(LEN),(UIO)); \
347 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
349 int haveGlock = ISAFS_GLOCK(); \
352 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
357 #endif /* AFS_DARWIN80_ENV */
359 #else /* AFS_GLOBAL_SUNLOCK */
361 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
363 CODE = copyin(__U((SRC)),(DST),(LEN)); \
366 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
368 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
371 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
373 CODE = copyout((SRC),__U((DST)),(LEN)); \
376 #if defined(AFS_DARWIN80_ENV)
377 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
379 uio_setrw((UIO),(RW)); \
380 CODE = uiomove((SRC),(LEN),(UIO)); \
382 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
383 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
384 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
386 (UIO)->uio_rw = (RW); \
387 CODE = uiomove((SRC),(LEN),(UIO)); \
389 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
390 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
392 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
394 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
395 #endif /* AFS_DARWIN80_ENV */
397 #endif /* AFS_GLOBAL_SUNLOCK */
399 #ifdef AFS_DARWIN80_ENV
400 #define AFS_UIO_OFFSET(uio) uio_offset(uio)
401 #define AFS_UIO_RESID(uio) (int)uio_resid(uio)
402 #define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
403 #define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
405 #define AFS_UIO_OFFSET(uio) (uio)->uio_offset
406 #define AFS_UIO_RESID(uio) (uio)->uio_resid
407 #define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
408 #define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
413 * encapsulation of kernel data structure accesses
415 #define setuerror(erval) u.u_error = (erval)
416 #define getuerror() u.u_error
418 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
419 * These are required for IRIX 6.4 and later, which pass behavior pointers.
420 * Note that the _CONVERT routines get the ";" here so that argument lists
421 * can have arguments after the OSI_x_CONVERT macro is called.
423 #define OSI_VN_ARG(V) V
424 #define OSI_VN_DECL(V) struct vnode *V
425 #define OSI_VN_CONVERT(V)
426 #define OSI_VC_ARG(V) V
427 #define OSI_VC_DECL(V) struct vcache *V
428 #define OSI_VC_CONVERT(V)
429 #define OSI_VFS_ARG(V) V
430 #define OSI_VFS_DECL(V) struct vfs *V
431 #define OSI_VFS_CONVERT(V)
435 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
437 #define AfsLargeFileUio(uio) 0
438 #define AfsLargeFileSize(pos, off) 0
440 /* Now include system specific OSI header file. It will redefine macros
441 * defined here as required by the OS.
443 #include "osi_machdep.h"
445 /* Declare any structures which use these macros after the OSI implementation
446 * has had the opportunity to redefine them.
448 extern struct AFS_UCRED afs_osi_cred, *afs_osi_credp;
451 #define osi_curcred() (u.u_cred)
454 #endif /* _AFS_OSI_ */