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 mtime; /* modification date */
45 afs_int32 atime; /* access time */
49 afs_int32 size; /* file size in bytes XXX Must be first field XXX */
50 #ifdef AFS_LINUX26_ENV
51 struct file *filp; /* May need this if we really open the file. */
53 #ifdef AFS_LINUX22_ENV
54 struct dentry dentry; /* merely to hold the pointer to the inode. */
55 struct file file; /* May need this if we really open the file. */
60 #if defined(AFS_HPUX102_ENV)
63 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
69 int (*proc) (struct osi_file * afile, afs_int32 code); /* proc, which, if not null, is called on writes */
70 char *rock; /* rock passed to proc */
71 ino_t inum; /* guarantee validity of hint */
73 int fd; /* file descriptor for user space files */
74 #endif /* defined(UKERNEL) */
78 #if defined(AFS_XBSD_ENV)
80 struct vnode *held_vnode;
81 #elif defined(AFS_AIX42_ENV)
88 struct afs_osi_WaitHandle {
91 int wh_inited; /* XXX */
93 caddr_t proc; /* process waiting */
97 #define osi_SetFileProc(x,p) ((x)->proc=(p))
98 #define osi_SetFileRock(x,r) ((x)->rock=(r))
99 #define osi_GetFileProc(x) ((x)->proc)
100 #define osi_GetFileRock(x) ((x)->rock)
103 #define osi_FlushText(vp) if (hcmp((vp)->m.DataVersion, (vp)->flushDV) > 0) \
104 osi_FlushText_really(vp)
106 #define osi_FlushText(vp)
110 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
111 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
112 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
115 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
118 * Alloc declarations.
120 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
123 * Vnode related macros
125 #if defined(AFS_DARWIN80_ENV)
126 #define vType(vc) vnode_vtype(AFSTOV(vc))
127 #define vSetVfsp(vc, vfsp)
128 #define vSetType(vc, type) (vc)->m.Type = (type)
129 extern int afs_vfs_typenum;
130 #define SetAfsVnode(vn) /* nothing; done in getnewvnode() */
131 #define IsAfsVnode(v) (vfs_typenum(vnode_mount((v))) == afs_vfs_typenum)
133 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) || defined(AFS_LINUX22_ENV)
134 #define vSetVfsp(vc, vfsp) AFSTOV(vc)->v_mount = (vfsp)
135 #define vSetType(vc, type) AFSTOV(vc)->v_type = (type)
136 #define vType(vc) AFSTOV(vc)->v_type
138 #define vType(vc) (vc)->v.v_type
139 #define vSetType(vc,type) (vc)->v.v_type = (type)
140 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
142 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
143 extern int (**afs_vnodeop_p) ();
144 #define IsAfsVnode(v) ((v)->v_op == afs_vnodeop_p)
145 #define SetAfsVnode(v) /* nothing; done in getnewvnode() */
147 extern struct vnodeops *afs_ops;
148 #define IsAfsVnode(v) ((v)->v_op == afs_ops)
149 #define SetAfsVnode(v) (v)->v_op = afs_ops
154 * In IRIX 6.5 we cannot have DEBUG turned on since certain
155 * system-defined structures are a different size with DEBUG on, the
156 * kernel is compiled without DEBUG on, and the resulting differences
157 * would break our ability to interact with the rest of the kernel.
159 * Is DEBUG only for turning the ASSERT() macro? If so, we should
160 * be able to eliminate DEBUG entirely.
162 #if !defined(AFS_SGI65_ENV)
164 #define DEBUG 1 /* Default is to enable debugging/logging */
169 * Time related macros
171 #define osi_GetuTime(x) osi_GetTime(x)
173 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
174 /** In 64 bit Solaris the timeval structure has members that are 64 bit
175 * In the GetTime() interface we expect pointers to afs_int32. So the need to
176 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
177 * we now use 32 bit quantities consistently all over the code.
178 * In 64 bit HP-UX the timeval structure has a 64 bit member.
181 #if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
186 #elif defined(AFS_SUN57_ENV)
187 typedef struct timeval32 osi_timeval_t;
189 typedef struct timeval osi_timeval_t;
190 #endif /* AFS_SGI61_ENV */
192 #define osi_getpid() getpid()
194 #define osi_getpid() getpid()
197 * osi_ThreadUnique() should yield a value that can be found in ps
198 * output in order to draw correspondences between ICL traces and what
199 * is going on in the system. So if ps cannot show thread IDs it is
200 * likely to be the process ID instead.
202 #ifdef AFS_FBSD50_ENV
203 /* should use curthread, but 'ps' can't display it */
204 #define osi_ThreadUnique() curproc
207 #define osi_ThreadUnique() (current->pid)
209 #define osi_ThreadUnique() getpid()
215 #ifdef AFS_GLOBAL_SUNLOCK
216 #define AFS_ASSERT_GLOCK() \
217 do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
218 #endif /* AFS_GLOBAL_SUNLOCK */
220 #ifdef RX_ENABLE_LOCKS
221 #define RX_AFS_GLOCK() AFS_GLOCK()
222 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
224 #define RX_AFS_GLOCK()
225 #define RX_AFS_GUNLOCK()
232 #define AFS_GUNLOCK()
233 #define ISAFS_GLOCK() 1
234 #define AFS_ASSERT_GLOCK()
237 /* On an MP that uses multithreading, splnet is not sufficient to provide
238 * mutual exclusion because the other processors will not see it. On some
239 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
240 * mutex, which this works in the UP expected way, it means that the whole MP
241 * can only take one interrupt at a time; a serious performance penalty. */
243 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
250 * vnode/vcache ref count manipulation
253 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
254 #else /* defined(UKERNEL) */
255 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
256 #endif /* defined(UKERNEL) */
259 * For some reason we do bare refcount manipulation in some places, for some
260 * platforms. The assumption is apparently that either we wouldn't call
261 * afs_inactive anyway (because we know the ref count is high), or that it's
262 * OK not to call it (because we don't expect CUnlinked or CDirty).
263 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
264 * macro for V-file vnodes.)
266 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
267 /* Bare refcount manipulation would probably work on this platform, but just
268 calling VREF does not */
269 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
271 #define AFS_FAST_HOLD(vp) VN_HOLD(AFSTOV(vp))
273 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
276 * MP safe versions of routines to copy memory between user space
277 * and kernel space. Call these to avoid taking page faults while
278 * holding the global lock.
280 #ifdef CAST_USER_ADDR_T
281 #define __U(X) CAST_USER_ADDR_T((X))
285 #ifdef AFS_GLOBAL_SUNLOCK
287 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
289 int haveGlock = ISAFS_GLOCK(); \
292 CODE = copyin(__U((SRC)),(DST),(LEN)); \
297 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
299 int haveGlock = ISAFS_GLOCK(); \
302 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
307 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
309 int haveGlock = ISAFS_GLOCK(); \
312 CODE = copyout((SRC),__U((DST)),(LEN)); \
317 #if defined(AFS_DARWIN80_ENV)
318 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
320 int haveGlock = ISAFS_GLOCK(); \
323 uio_setrw((UIO),(RW)); \
324 CODE = uiomove((SRC),(LEN),(UIO)); \
329 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
330 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
332 int haveGlock = ISAFS_GLOCK(); \
335 (UIO)->uio_rw = (RW); \
336 CODE = uiomove((SRC),(LEN),(UIO)); \
341 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
343 int haveGlock = ISAFS_GLOCK(); \
346 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
351 #endif /* AFS_DARWIN80_ENV */
353 #else /* AFS_GLOBAL_SUNLOCK */
355 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
357 CODE = copyin(__U((SRC)),(DST),(LEN)); \
360 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
362 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
365 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
367 CODE = copyout((SRC),__U((DST)),(LEN)); \
370 #if defined(AFS_DARWIN80_ENV)
371 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
373 uio_setrw((UIO),(RW)); \
374 CODE = uiomove((SRC),(LEN),(UIO)); \
376 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
377 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
378 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
380 (UIO)->uio_rw = (RW); \
381 CODE = uiomove((SRC),(LEN),(UIO)); \
383 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
384 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
386 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
388 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
389 #endif /* AFS_DARWIN80_ENV */
391 #endif /* AFS_GLOBAL_SUNLOCK */
393 #ifdef AFS_DARWIN80_ENV
394 #define AFS_UIO_OFFSET(uio) uio_offset(uio)
395 #define AFS_UIO_RESID(uio) (int)uio_resid(uio)
396 #define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
397 #define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
399 #define AFS_UIO_OFFSET(uio) (uio)->uio_offset
400 #define AFS_UIO_RESID(uio) (uio)->uio_resid
401 #define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
402 #define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
407 * encapsulation of kernel data structure accesses
409 #define setuerror(erval) u.u_error = (erval)
410 #define getuerror() u.u_error
412 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
413 * These are required for IRIX 6.4 and later, which pass behavior pointers.
414 * Note that the _CONVERT routines get the ";" here so that argument lists
415 * can have arguments after the OSI_x_CONVERT macro is called.
417 #define OSI_VN_ARG(V) V
418 #define OSI_VN_DECL(V) struct vnode *V
419 #define OSI_VN_CONVERT(V)
420 #define OSI_VC_ARG(V) V
421 #define OSI_VC_DECL(V) struct vcache *V
422 #define OSI_VC_CONVERT(V)
423 #define OSI_VFS_ARG(V) V
424 #define OSI_VFS_DECL(V) struct vfs *V
425 #define OSI_VFS_CONVERT(V)
429 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
431 #define AfsLargeFileUio(uio) 0
432 #define AfsLargeFileSize(pos, off) 0
434 /* Now include system specific OSI header file. It will redefine macros
435 * defined here as required by the OS.
437 #include "osi_machdep.h"
439 /* Declare any structures which use these macros after the OSI implementation
440 * has had the opportunity to redefine them.
442 extern struct AFS_UCRED afs_osi_cred, *afs_osi_credp;
445 #define osi_curcred() (u.u_cred)
448 #endif /* _AFS_OSI_ */