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 */
129 * Default vnode related macros
131 * Darwin, all of the BSDs, and Linux have their own
133 #if !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV) && !defined(AFS_LINUX20_ENV)
134 # define vType(vc) (vc)->v.v_type
135 # define vSetType(vc,type) (vc)->v.v_type = (type)
136 # define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
137 extern struct vnodeops *afs_ops;
138 # define IsAfsVnode(v) ((v)->v_op == afs_ops)
139 # define SetAfsVnode(v) (v)->v_op = afs_ops
143 extern int osi_TryEvictVCache(struct vcache *, int *, int);
144 extern struct vcache *osi_NewVnode(void);
145 extern void osi_PrePopulateVCache(struct vcache *);
146 extern void osi_PostPopulateVCache(struct vcache *);
147 extern void osi_AttachVnode(struct vcache *, int seq);
150 * In IRIX 6.5 and NetBSD we cannot have DEBUG turned on since certain
151 * system-defined structures are a different size with DEBUG on, the
152 * kernel is compiled without DEBUG on, and the resulting differences
153 * would break our ability to interact with the rest of the kernel.
155 * Is DEBUG only for turning the ASSERT() macro? If so, we should
156 * be able to eliminate DEBUG entirely.
158 #if !defined(AFS_SGI65_ENV) && !defined(AFS_NBSD_ENV)
160 #define DEBUG 1 /* Default is to enable debugging/logging */
165 * Time related macros
167 #define osi_GetuTime(x) osi_GetTime(x)
169 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
170 /** In 64 bit Solaris the timeval structure has members that are 64 bit
171 * In the GetTime() interface we expect pointers to afs_int32. So the need to
172 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
173 * we now use 32 bit quantities consistently all over the code.
174 * In 64 bit HP-UX the timeval structure has a 64 bit member.
177 #if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
182 #elif defined(AFS_SUN57_ENV)
183 typedef struct timeval32 osi_timeval_t;
185 typedef struct timeval osi_timeval_t;
186 #endif /* AFS_SGI61_ENV */
189 #define osi_getpid() getpid()
193 * osi_ThreadUnique() should yield a value that can be found in ps
194 * output in order to draw correspondences between ICL traces and what
195 * is going on in the system. So if ps cannot show thread IDs it is
196 * likely to be the process ID instead.
199 /* should use curthread, but 'ps' can't display it */
200 #define osi_ThreadUnique() (curproc->p_pid)
201 #elif defined(AFS_LINUX_ENV)
202 #define osi_ThreadUnique() (current->pid)
203 #elif defined(UKERNEL)
204 #define osi_ThreadUnique() osi_getpid()
206 #define osi_ThreadUnique() getpid()
211 #ifdef AFS_GLOBAL_SUNLOCK
212 #define AFS_ASSERT_GLOCK() \
213 do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
214 #endif /* AFS_GLOBAL_SUNLOCK */
216 #ifdef RX_ENABLE_LOCKS
217 #define RX_AFS_GLOCK() AFS_GLOCK()
218 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
220 #define RX_AFS_GLOCK()
221 #define RX_AFS_GUNLOCK()
228 #define AFS_GUNLOCK()
229 #define ISAFS_GLOCK() 1
230 #define AFS_ASSERT_GLOCK()
233 /* On an MP that uses multithreading, splnet is not sufficient to provide
234 * mutual exclusion because the other processors will not see it. On some
235 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
236 * mutex, which this works in the UP expected way, it means that the whole MP
237 * can only take one interrupt at a time; a serious performance penalty. */
239 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
246 * vnode/vcache ref count manipulation
249 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
250 #else /* defined(UKERNEL) */
251 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
252 #endif /* defined(UKERNEL) */
255 * For some reason we do bare refcount manipulation in some places, for some
256 * platforms. The assumption is apparently that either we wouldn't call
257 * afs_inactive anyway (because we know the ref count is high), or that it's
258 * OK not to call it (because we don't expect CUnlinked or CDirty).
259 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
260 * macro for V-file vnodes.)
262 /* osi_vnhold is defined in PLATFORM/osi_machdep.h */
263 #define AFS_FAST_HOLD(vp) osi_vnhold((vp), 0)
266 #define AFS_FAST_RELE(vp) VREFCOUNT_DEC(vp)
268 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
272 * MP safe versions of routines to copy memory between user space
273 * and kernel space. Call these to avoid taking page faults while
274 * holding the global lock.
276 #if defined(CAST_USER_ADDR_T) && !defined(UKERNEL) && !defined(AFS_DARWIN100_ENV)
277 #define __U(X) CAST_USER_ADDR_T((X))
281 #ifdef AFS_GLOBAL_SUNLOCK
283 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
285 int haveGlock = ISAFS_GLOCK(); \
288 CODE = copyin(__U((SRC)),(DST),(LEN)); \
293 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
295 int haveGlock = ISAFS_GLOCK(); \
298 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
303 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
305 int haveGlock = ISAFS_GLOCK(); \
308 CODE = copyout((SRC),__U((DST)),(LEN)); \
313 #if defined(AFS_DARWIN80_ENV)
314 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
316 int haveGlock = ISAFS_GLOCK(); \
319 uio_setrw((UIO),(RW)); \
320 CODE = uiomove((SRC),(LEN),(UIO)); \
325 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
326 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
328 int haveGlock = ISAFS_GLOCK(); \
331 (UIO)->uio_rw = (RW); \
332 CODE = uiomove((SRC),(LEN),(UIO)); \
337 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
339 int haveGlock = ISAFS_GLOCK(); \
342 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
347 #endif /* AFS_DARWIN80_ENV */
349 #else /* AFS_GLOBAL_SUNLOCK */
351 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
353 CODE = copyin(__U((SRC)),(DST),(LEN)); \
356 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
358 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
361 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
363 CODE = copyout((SRC),__U((DST)),(LEN)); \
366 #if defined(AFS_DARWIN80_ENV)
367 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
369 uio_setrw((UIO),(RW)); \
370 CODE = uiomove((SRC),(LEN),(UIO)); \
372 #elif defined(AFS_DARWIN_ENV) || (defined(AFS_XBSD_ENV) && !defined(AFS_NBSD40_ENV))
373 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
375 (UIO)->uio_rw = (RW); \
376 CODE = uiomove((SRC),(LEN),(UIO)); \
379 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
381 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
385 #endif /* AFS_GLOBAL_SUNLOCK */
387 #ifdef AFS_DARWIN80_ENV
388 #define AFS_UIO_OFFSET(uio) uio_offset(uio)
389 #define AFS_UIO_RESID(uio) (int)uio_resid(uio)
390 #define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
391 #define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
393 #define AFS_UIO_OFFSET(uio) (uio)->uio_offset
394 #define AFS_UIO_RESID(uio) (uio)->uio_resid
395 #define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
396 #define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
401 * encapsulation of kernel data structure accesses
404 #define setuerror(erval) u.u_error = (erval)
405 #define getuerror() u.u_error
408 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
409 * These are required for IRIX 6.4 and later, which pass behavior pointers.
410 * Note that the _CONVERT routines get the ";" here so that argument lists
411 * can have arguments after the OSI_x_CONVERT macro is called.
413 #define OSI_VN_ARG(V) V
414 #define OSI_VN_DECL(V) struct vnode *V
415 #define OSI_VN_CONVERT(V)
416 #define OSI_VC_ARG(V) V
417 #define OSI_VC_DECL(V) struct vcache *V
418 #define OSI_VC_CONVERT(V)
419 #define OSI_VFS_ARG(V) V
420 #define OSI_VFS_DECL(V) struct vfs *V
421 #define OSI_VFS_CONVERT(V)
425 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
427 #define AfsLargeFileUio(uio) 0
428 #define AfsLargeFileSize(pos, off) 0
430 /* Now include system specific OSI header file. It will redefine macros
431 * defined here as required by the OS.
433 #include "osi_machdep.h"
435 /* Declare any structures which use these macros after the OSI implementation
436 * has had the opportunity to redefine them.
438 extern afs_ucred_t afs_osi_cred, *afs_osi_credp;
441 #define osi_curcred() (u.u_cred)
444 #endif /* _AFS_OSI_ */