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
122 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
123 #define vSetVfsp(vc, vfsp) AFSTOV(vc)->v_mount = (vfsp)
124 #define vSetType(vc, type) AFSTOV(vc)->v_type = (type)
125 #define vType(vc) AFSTOV(vc)->v_type
127 #define vType(vc) (vc)->v.v_type
128 #define vSetType(vc,type) (vc)->v.v_type = (type)
129 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
133 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
134 extern int (**afs_vnodeop_p) ();
135 #define IsAfsVnode(vc) ((vc)->v_op == afs_vnodeop_p)
136 #define SetAfsVnode(vc) (vc)->v_op = afs_vnodeop_p
138 extern struct vnodeops *afs_ops;
139 #define IsAfsVnode(vc) ((vc)->v_op == afs_ops)
140 #define SetAfsVnode(vc) (vc)->v_op = afs_ops
145 #define gop_lookupname(fnamep,segflg,followlink,compvpp) \
146 lookupname((fnamep),(segflg),(followlink),NULL,(compvpp),\
150 #define gop_lookupname(fnamep,segflg,followlink,compvpp) \
151 lookupname((fnamep),(segflg),(followlink),NULL,(compvpp))
156 * In IRIX 6.5 we cannot have DEBUG turned on since certain
157 * system-defined structures are a different size with DEBUG on, the
158 * kernel is compiled without DEBUG on, and the resulting differences
159 * would break our ability to interact with the rest of the kernel.
161 * Is DEBUG only for turning the ASSERT() macro? If so, we should
162 * be able to eliminate DEBUG entirely.
164 #if !defined(AFS_SGI65_ENV)
166 #define DEBUG 1 /* Default is to enable debugging/logging */
171 * Time related macros
173 #define osi_GetuTime(x) osi_GetTime(x)
175 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
176 /** In 64 bit Solaris the timeval structure has members that are 64 bit
177 * In the GetTime() interface we expect pointers to afs_int32. So the need to
178 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
179 * we now use 32 bit quantities consistently all over the code.
180 * In 64 bit HP-UX the timeval structure has a 64 bit member.
184 #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))
190 typedef struct timeval osi_timeval_t;
191 #endif /* AFS_SGI61_ENV */
194 * osi_ThreadUnique() should yield a value that can be found in ps
195 * output in order to draw correspondences between ICL traces and what
196 * is going on in the system. So if ps cannot show thread IDs it is
197 * likely to be the process ID instead.
199 #ifdef AFS_FBSD50_ENV
200 /* should use curthread, but 'ps' can't display it */
201 #define osi_ThreadUnique() curproc
203 #define osi_ThreadUnique() getpid()
208 #ifdef AFS_GLOBAL_SUNLOCK
209 #define AFS_ASSERT_GLOCK() \
210 (ISAFS_GLOCK() || (osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__), 0))
211 #endif /* AFS_GLOBAL_SUNLOCK */
213 #ifdef RX_ENABLE_LOCKS
214 #define RX_AFS_GLOCK() AFS_GLOCK()
215 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
217 #define RX_AFS_GLOCK()
218 #define RX_AFS_GUNLOCK()
225 #define AFS_GUNLOCK()
226 #define ISAFS_GLOCK() 1
227 #define AFS_ASSERT_GLOCK()
230 /* On an MP that uses multithreading, splnet is not sufficient to provide
231 * mutual exclusion because the other processors will not see it. On some
232 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
233 * mutex, which this works in the UP expected way, it means that the whole MP
234 * can only take one interrupt at a time; a serious performance penalty. */
236 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
243 * vnode/vcache ref count manipulation
246 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
247 #else /* defined(UKERNEL) */
248 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
249 #endif /* defined(UKERNEL) */
252 * For some reason we do bare refcount manipulation in some places, for some
253 * platforms. The assumption is apparently that either we wouldn't call
254 * afs_inactive anyway (because we know the ref count is high), or that it's
255 * OK not to call it (because we don't expect CUnlinked or CDirty).
256 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
257 * macro for V-file vnodes.)
259 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
260 /* Bare refcount manipulation would probably work on this platform, but just
261 calling VREF does not */
262 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
264 #define AFS_FAST_HOLD(vp) VN_HOLD(&(vp)->v)
266 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
269 * MP safe versions of routines to copy memory between user space
270 * and kernel space. Call these to avoid taking page faults while
271 * holding the global lock.
273 #ifdef AFS_GLOBAL_SUNLOCK
275 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
277 int haveGlock = ISAFS_GLOCK(); \
280 CODE = copyin((SRC),(DST),(LEN)); \
285 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
287 int haveGlock = ISAFS_GLOCK(); \
290 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
295 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
297 int haveGlock = ISAFS_GLOCK(); \
300 CODE = copyout((SRC),(DST),(LEN)); \
305 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
306 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
308 int haveGlock = ISAFS_GLOCK(); \
311 (UIO)->uio_rw = (RW); \
312 CODE = uiomove((SRC),(LEN),(UIO)); \
317 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
319 int haveGlock = ISAFS_GLOCK(); \
322 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
328 #else /* AFS_GLOBAL_SUNLOCK */
330 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
332 CODE = copyin((SRC),(DST),(LEN)); \
335 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
337 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
340 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
342 CODE = copyout((SRC),(DST),(LEN)); \
345 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
346 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
348 (UIO)->uio_rw = (RW); \
349 CODE = uiomove((SRC),(LEN),(UIO)); \
351 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
352 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
354 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
356 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
358 #endif /* AFS_GLOBAL_SUNLOCK */
361 * encapsulation of kernel data structure accesses
363 #define setuerror(erval) u.u_error = (erval)
364 #define getuerror() u.u_error
366 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
367 * These are required for IRIX 6.4 and later, which pass behavior pointers.
368 * Note that the _CONVERT routines get the ";" here so that argument lists
369 * can have arguments after the OSI_x_CONVERT macro is called.
371 #define OSI_VN_ARG(V) V
372 #define OSI_VN_DECL(V) struct vnode *V
373 #define OSI_VN_CONVERT(V)
374 #define OSI_VC_ARG(V) V
375 #define OSI_VC_DECL(V) struct vcache *V
376 #define OSI_VC_CONVERT(V)
377 #define OSI_VFS_ARG(V) V
378 #define OSI_VFS_DECL(V) struct vfs *V
379 #define OSI_VFS_CONVERT(V)
383 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
385 #define AfsLargeFileUio(uio) 0
386 #define AfsLargeFileSize(pos, off) 0
388 /* Now include system specific OSI header file. It will redefine macros
389 * defined here as required by the OS.
391 #include "osi_machdep.h"
393 /* Declare any structures which use these macros after the OSI implementation
394 * has had the opportunity to redefine them.
396 extern struct AFS_UCRED afs_osi_cred, *afs_osi_credp;
399 #define osi_curcred() (u.u_cred)
402 #endif /* _AFS_OSI_ */