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_LINUX22_ENV
52 struct dentry dentry; /* merely to hold the pointer to the inode. */
53 struct file file; /* May need this if we really open the file. */
57 #if defined(AFS_HPUX102_ENV)
60 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
66 int (*proc) (struct osi_file * afile, afs_int32 code); /* proc, which, if not null, is called on writes */
67 char *rock; /* rock passed to proc */
68 ino_t inum; /* guarantee validity of hint */
70 int fd; /* file descriptor for user space files */
71 #endif /* defined(UKERNEL) */
75 #if defined(AFS_XBSD_ENV)
77 struct vnode *held_vnode;
78 #elif defined(AFS_AIX42_ENV)
85 struct afs_osi_WaitHandle {
88 int wh_inited; /* XXX */
90 caddr_t proc; /* process waiting */
94 #define osi_SetFileProc(x,p) ((x)->proc=(p))
95 #define osi_SetFileRock(x,r) ((x)->rock=(r))
96 #define osi_GetFileProc(x) ((x)->proc)
97 #define osi_GetFileRock(x) ((x)->rock)
100 #define osi_FlushText(vp) if (hcmp((vp)->m.DataVersion, (vp)->flushDV) > 0) \
101 osi_FlushText_really(vp)
103 #define osi_FlushText(vp)
107 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
108 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
109 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
112 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
115 * Alloc declarations.
117 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
120 * Vnode related macros
123 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
124 extern int (**afs_vnodeop_p) ();
125 #define IsAfsVnode(vc) ((vc)->v_op == afs_vnodeop_p)
126 #define SetAfsVnode(vc) (vc)->v_op = afs_vnodeop_p
128 extern struct vnodeops *afs_ops;
129 #define IsAfsVnode(vc) ((vc)->v_op == afs_ops)
130 #define SetAfsVnode(vc) (vc)->v_op = afs_ops
132 #define vType(vc) (vc)->v.v_type
133 #define vSetType(vc,type) (vc)->v.v_type = (type)
134 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
138 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
139 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp),\
143 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
144 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp))
149 * In IRIX 6.5 we cannot have DEBUG turned on since certain
150 * system-defined structures are a different size with DEBUG on, the
151 * kernel is compiled without DEBUG on, and the resulting differences
152 * would break our ability to interact with the rest of the kernel.
154 * Is DEBUG only for turning the ASSERT() macro? If so, we should
155 * be able to eliminate DEBUG entirely.
157 #if !defined(AFS_SGI65_ENV)
159 #define DEBUG 1 /* Default is to enable debugging/logging */
164 * Time related macros
166 #define osi_GetuTime(x) osi_GetTime(x)
168 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
169 /** In 64 bit Solaris the timeval structure has members that are 64 bit
170 * In the GetTime() interface we expect pointers to afs_int32. So the need to
171 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
172 * we now use 32 bit quantities consistently all over the code.
173 * In 64 bit HP-UX the timeval structure has a 64 bit member.
177 #if defined(AFS_HPUX_ENV) || (defined(AFS_SUN57_ENV) && !defined(AFS_SUN510_ENV)) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
183 typedef struct timeval osi_timeval_t;
184 #endif /* AFS_SGI61_ENV */
187 * The following three routines provide the fid routines used by the buffer
188 * and directory packages.
190 #define dirp_Zap(afid) (*(afid) = -1)
191 #define dirp_Eq(afid, bfid) (*(afid) == *(bfid))
192 #define dirp_Cpy(dfid,sfid) (*(dfid) = *(sfid))
196 * osi_ThreadUnique() should yield a value that can be found in ps
197 * output in order to draw correspondences between ICL traces and what
198 * is going on in the system. So if ps cannot show thread IDs it is
199 * likely to be the process ID instead.
201 #ifdef AFS_FBSD50_ENV
202 /* should use curthread, but 'ps' can't display it */
203 #define osi_ThreadUnique() curproc
205 #define osi_ThreadUnique() getpid()
210 #ifdef AFS_GLOBAL_SUNLOCK
211 #define AFS_ASSERT_GLOCK() \
212 (ISAFS_GLOCK() || (osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__), 0))
213 #define AFS_ASSERT_RXGLOCK() \
214 (ISAFS_RXGLOCK() || (osi_Panic("rx global lock not held at %s:%d\n", __FILE__, __LINE__), 0))
215 #endif /* AFS_GLOBAL_SUNLOCK */
217 #ifdef RX_ENABLE_LOCKS
218 #define RX_AFS_GLOCK() AFS_GLOCK()
219 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
221 #define RX_AFS_GLOCK()
222 #define RX_AFS_GUNLOCK()
229 #define AFS_GUNLOCK()
230 #define ISAFS_GLOCK() 1
231 #define AFS_ASSERT_GLOCK()
232 #define AFS_RXGLOCK()
233 #define AFS_RXGUNLOCK()
234 #define ISAFS_RXGLOCK() 1
235 #define AFS_ASSERT_RXGLOCK()
238 /* On an MP that uses multithreading, splnet is not sufficient to provide
239 * mutual exclusion because the other processors will not see it. On some
240 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
241 * mutex, which this works in the UP expected way, it means that the whole MP
242 * can only take one interrupt at a time; a serious performance penalty. */
244 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
251 * vnode/vcache ref count manipulation
254 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
255 #else /* defined(UKERNEL) */
256 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
257 #endif /* defined(UKERNEL) */
260 * For some reason we do bare refcount manipulation in some places, for some
261 * platforms. The assumption is apparently that either we wouldn't call
262 * afs_inactive anyway (because we know the ref count is high), or that it's
263 * OK not to call it (because we don't expect CUnlinked or CDirty).
264 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
265 * macro for V-file vnodes.)
267 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
268 /* Bare refcount manipulation would probably work on this platform, but just
269 calling VREF does not */
270 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
272 #define AFS_FAST_HOLD(vp) VN_HOLD(&(vp)->v)
274 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
277 * MP safe versions of routines to copy memory between user space
278 * and kernel space. Call these to avoid taking page faults while
279 * holding the global lock.
281 #ifdef AFS_GLOBAL_SUNLOCK
283 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
285 int haveGlock = ISAFS_GLOCK(); \
288 CODE = copyin((SRC),(DST),(LEN)); \
293 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
295 int haveGlock = ISAFS_GLOCK(); \
298 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
303 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
305 int haveGlock = ISAFS_GLOCK(); \
308 CODE = copyout((SRC),(DST),(LEN)); \
313 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
314 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
316 int haveGlock = ISAFS_GLOCK(); \
319 (UIO)->uio_rw = (RW); \
320 CODE = uiomove((SRC),(LEN),(UIO)); \
325 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
327 int haveGlock = ISAFS_GLOCK(); \
330 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
336 #else /* AFS_GLOBAL_SUNLOCK */
338 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
340 CODE = copyin((SRC),(DST),(LEN)); \
343 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
345 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
348 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
350 CODE = copyout((SRC),(DST),(LEN)); \
353 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
354 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
356 (UIO)->uio_rw = (RW); \
357 CODE = uiomove((SRC),(LEN),(UIO)); \
359 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
360 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
362 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
364 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
366 #endif /* AFS_GLOBAL_SUNLOCK */
369 * encapsulation of kernel data structure accesses
371 #define setuerror(erval) u.u_error = (erval)
372 #define getuerror() u.u_error
374 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
375 * These are required for IRIX 6.4 and later, which pass behavior pointers.
376 * Note that the _CONVERT routines get the ";" here so that argument lists
377 * can have arguments after the OSI_x_CONVERT macro is called.
379 #define OSI_VN_ARG(V) V
380 #define OSI_VN_DECL(V) struct vnode *V
381 #define OSI_VN_CONVERT(V)
382 #define OSI_VC_ARG(V) V
383 #define OSI_VC_DECL(V) struct vcache *V
384 #define OSI_VC_CONVERT(V)
385 #define OSI_VFS_ARG(V) V
386 #define OSI_VFS_DECL(V) struct vfs *V
387 #define OSI_VFS_CONVERT(V)
391 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
393 #define AfsLargeFileUio(uio) 0
394 #define AfsLargeFileSize(pos, off) 0
396 /* Now include system specific OSI header file. It will redefine macros
397 * defined here as required by the OS.
399 #include "osi_machdep.h"
401 /* Declare any structures which use these macros after the OSI implementation
402 * has had the opportunity to redefine them.
404 extern struct AFS_UCRED afs_osi_cred, *afs_osi_credp;
407 #define osi_curcred() (u.u_cred)
410 #endif /* _AFS_OSI_ */