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>
24 #ifdef AFS_LINUX20_ENV
25 #ifndef _LINUX_CODA_FS_I
26 #define _LINUX_CODA_FS_I
28 struct coda_inode_info {
31 #ifndef _LINUX_XFS_FS_I
32 #define _LINUX_XFS_FS_I
33 struct xfs_inode_info {
40 #if defined(AFS_NBSD50_ENV)
41 # if !defined(DEF_CADDR_T)
42 typedef char * caddr_t;
48 /* this is just a dummy type decl, we're really using struct sockets here */
54 afs_int32 size; /* file size in bytes */
55 afs_int32 mtime; /* modification date */
56 afs_int32 atime; /* access time */
60 afs_int32 size; /* file size in bytes XXX Must be first field XXX */
61 #ifdef AFS_LINUX26_ENV
62 struct file *filp; /* May need this if we really open the file. */
64 #ifdef AFS_LINUX22_ENV
65 struct dentry dentry; /* merely to hold the pointer to the inode. */
66 struct file file; /* May need this if we really open the file. */
71 #if defined(AFS_HPUX102_ENV)
74 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
80 int (*proc) (struct osi_file * afile, afs_int32 code); /* proc, which, if not null, is called on writes */
81 char *rock; /* rock passed to proc */
83 int fd; /* file descriptor for user space files */
84 #endif /* defined(UKERNEL) */
88 #if defined(AFS_XBSD_ENV)
90 struct vnode *held_vnode;
91 #elif defined(AFS_AIX42_ENV)
98 struct afs_osi_WaitHandle {
100 struct cv wh_condvar;
103 caddr_t proc; /* process waiting */
107 #define osi_SetFileProc(x,p) ((x)->proc=(p))
108 #define osi_SetFileRock(x,r) ((x)->rock=(r))
109 #define osi_GetFileProc(x) ((x)->proc)
110 #define osi_GetFileRock(x) ((x)->rock)
113 #define osi_FlushText(vp) if (hcmp((vp)->f.m.DataVersion, (vp)->flushDV) > 0) \
114 osi_FlushText_really(vp)
116 #define osi_FlushText(vp)
120 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
121 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
122 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
125 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
130 * Default vnode related macros
132 * Darwin, all of the BSDs, and Linux have their own
134 #if !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV) && !defined(AFS_LINUX20_ENV)
135 # define vType(vc) (vc)->v.v_type
136 # define vSetType(vc,type) (vc)->v.v_type = (type)
137 # define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
138 extern struct vnodeops *afs_ops;
139 # define IsAfsVnode(v) ((v)->v_op == afs_ops)
140 # define SetAfsVnode(v) (v)->v_op = afs_ops
144 extern int osi_TryEvictVCache(struct vcache *, int *, int);
145 extern struct vcache *osi_NewVnode(void);
146 extern void osi_PrePopulateVCache(struct vcache *);
147 extern void osi_PostPopulateVCache(struct vcache *);
148 extern void osi_AttachVnode(struct vcache *, int seq);
151 * In IRIX 6.5 and NetBSD we cannot have DEBUG turned on since certain
152 * system-defined structures are a different size with DEBUG on, the
153 * kernel is compiled without DEBUG on, and the resulting differences
154 * would break our ability to interact with the rest of the kernel.
156 * Is DEBUG only for turning the ASSERT() macro? If so, we should
157 * be able to eliminate DEBUG entirely.
159 #if !defined(AFS_SGI65_ENV) && !defined(AFS_NBSD_ENV)
161 #define DEBUG 1 /* Default is to enable debugging/logging */
166 * Time related macros
168 #define osi_GetuTime(x) osi_GetTime(x)
170 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
171 /** In 64 bit Solaris the timeval structure has members that are 64 bit
172 * In the GetTime() interface we expect pointers to afs_int32. So the need to
173 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
174 * we now use 32 bit quantities consistently all over the code.
175 * In 64 bit HP-UX the timeval structure has a 64 bit member.
178 #if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
187 #elif defined(AFS_SUN5_ENV)
188 typedef struct timeval32 osi_timeval_t;
189 typedef struct timeval32 osi_timeval32_t;
191 typedef struct timeval osi_timeval_t;
192 typedef struct timeval osi_timeval32_t;
193 #endif /* AFS_SGI61_ENV */
196 #define osi_getpid() getpid()
200 * osi_ThreadUnique() should yield a value that can be found in ps
201 * output in order to draw correspondences between ICL traces and what
202 * is going on in the system. So if ps cannot show thread IDs it is
203 * likely to be the process ID instead.
206 /* should use curthread, but 'ps' can't display it */
207 #define osi_ThreadUnique() (curproc->p_pid)
208 #elif defined(UKERNEL)
209 #define osi_ThreadUnique() osi_getpid()
211 #define osi_ThreadUnique() getpid()
216 #ifdef AFS_GLOBAL_SUNLOCK
217 #define AFS_ASSERT_GLOCK() \
218 do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
219 #endif /* AFS_GLOBAL_SUNLOCK */
221 #ifdef RX_ENABLE_LOCKS
222 #define RX_AFS_GLOCK() AFS_GLOCK()
223 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
225 #define RX_AFS_GLOCK()
226 #define RX_AFS_GUNLOCK()
233 #define AFS_GUNLOCK()
234 #define ISAFS_GLOCK() 1
235 #define AFS_ASSERT_GLOCK()
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 /* osi_vnhold is defined in PLATFORM/osi_machdep.h */
268 #define AFS_FAST_HOLD(vp) osi_vnhold((vp), 0)
271 #define AFS_FAST_RELE(vp) VREFCOUNT_DEC(vp)
273 #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 #if defined(CAST_USER_ADDR_T) && !defined(UKERNEL) && !defined(AFS_DARWIN100_ENV)
282 #define __U(X) CAST_USER_ADDR_T((X))
286 #ifdef AFS_GLOBAL_SUNLOCK
288 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
290 int haveGlock = ISAFS_GLOCK(); \
293 CODE = copyin(__U((SRC)),(DST),(LEN)); \
298 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
300 int haveGlock = ISAFS_GLOCK(); \
303 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
308 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
310 int haveGlock = ISAFS_GLOCK(); \
313 CODE = copyout((SRC),__U((DST)),(LEN)); \
318 #if defined(AFS_DARWIN80_ENV)
319 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
321 int haveGlock = ISAFS_GLOCK(); \
324 uio_setrw((UIO),(RW)); \
325 CODE = uiomove((SRC),(LEN),(UIO)); \
330 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
331 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
333 int haveGlock = ISAFS_GLOCK(); \
336 (UIO)->uio_rw = (RW); \
337 CODE = uiomove((SRC),(LEN),(UIO)); \
342 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
344 int haveGlock = ISAFS_GLOCK(); \
347 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
352 #endif /* AFS_DARWIN80_ENV */
354 #else /* AFS_GLOBAL_SUNLOCK */
356 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
358 CODE = copyin(__U((SRC)),(DST),(LEN)); \
361 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
363 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
366 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
368 CODE = copyout((SRC),__U((DST)),(LEN)); \
371 #if defined(AFS_DARWIN80_ENV)
372 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
374 uio_setrw((UIO),(RW)); \
375 CODE = uiomove((SRC),(LEN),(UIO)); \
377 #elif defined(AFS_DARWIN_ENV) || (defined(AFS_XBSD_ENV) && !defined(AFS_NBSD40_ENV))
378 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
380 (UIO)->uio_rw = (RW); \
381 CODE = uiomove((SRC),(LEN),(UIO)); \
384 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
386 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
390 #endif /* AFS_GLOBAL_SUNLOCK */
392 #ifdef AFS_DARWIN80_ENV
393 #define AFS_UIO_OFFSET(uio) uio_offset(uio)
394 #define AFS_UIO_RESID(uio) (int)uio_resid(uio)
395 #define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
396 #define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
398 #define AFS_UIO_OFFSET(uio) (uio)->uio_offset
399 #define AFS_UIO_RESID(uio) (uio)->uio_resid
400 #define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
401 #define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
406 * encapsulation of kernel data structure accesses
409 #define setuerror(erval) u.u_error = (erval)
410 #define getuerror() u.u_error
413 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
414 * These are required for IRIX 6.4 and later, which pass behavior pointers.
415 * Note that the _CONVERT routines get the ";" here so that argument lists
416 * can have arguments after the OSI_x_CONVERT macro is called.
418 #define OSI_VN_ARG(V) V
419 #define OSI_VN_DECL(V) struct vnode *V
420 #define OSI_VN_CONVERT(V)
421 #define OSI_VC_ARG(V) V
422 #define OSI_VC_DECL(V) struct vcache *V
423 #define OSI_VC_CONVERT(V)
424 #define OSI_VFS_ARG(V) V
425 #define OSI_VFS_DECL(V) struct vfs *V
426 #define OSI_VFS_CONVERT(V)
430 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
432 #define AfsLargeFileUio(uio) 0
433 #define AfsLargeFileSize(pos, off) 0
435 /* Now include system specific OSI header file. It will redefine macros
436 * defined here as required by the OS.
438 #include "osi_machdep.h"
440 /* Declare any structures which use these macros after the OSI implementation
441 * has had the opportunity to redefine them.
443 extern afs_ucred_t afs_osi_cred, *afs_osi_credp;
446 #define osi_curcred() (u.u_cred)
449 #endif /* _AFS_OSI_ */