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)->f.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 #if !defined(AFS_OBSD44_ENV)
121 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
125 * Default vnode related macros
127 * Darwin, all of the BSDs, and Linux have their own
129 #if !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV) && !defined(AFS_LINUX20_ENV)
130 # define vType(vc) (vc)->v.v_type
131 # define vSetType(vc,type) (vc)->v.v_type = (type)
132 # define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
133 extern struct vnodeops *afs_ops;
134 # define IsAfsVnode(v) ((v)->v_op == afs_ops)
135 # define SetAfsVnode(v) (v)->v_op = afs_ops
139 * In IRIX 6.5 we cannot have DEBUG turned on since certain
140 * system-defined structures are a different size with DEBUG on, the
141 * kernel is compiled without DEBUG on, and the resulting differences
142 * would break our ability to interact with the rest of the kernel.
144 * Is DEBUG only for turning the ASSERT() macro? If so, we should
145 * be able to eliminate DEBUG entirely.
147 #if !defined(AFS_SGI65_ENV)
149 #define DEBUG 1 /* Default is to enable debugging/logging */
154 * Time related macros
156 #define osi_GetuTime(x) osi_GetTime(x)
158 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
159 /** In 64 bit Solaris the timeval structure has members that are 64 bit
160 * In the GetTime() interface we expect pointers to afs_int32. So the need to
161 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
162 * we now use 32 bit quantities consistently all over the code.
163 * In 64 bit HP-UX the timeval structure has a 64 bit member.
166 #if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
171 #elif defined(AFS_SUN57_ENV)
172 typedef struct timeval32 osi_timeval_t;
174 typedef struct timeval osi_timeval_t;
175 #endif /* AFS_SGI61_ENV */
178 #define osi_getpid() getpid()
182 * osi_ThreadUnique() should yield a value that can be found in ps
183 * output in order to draw correspondences between ICL traces and what
184 * is going on in the system. So if ps cannot show thread IDs it is
185 * likely to be the process ID instead.
187 #ifdef AFS_FBSD50_ENV
188 /* should use curthread, but 'ps' can't display it */
189 #define osi_ThreadUnique() curproc
190 #elif defined(AFS_LINUX_ENV)
191 #define osi_ThreadUnique() (current->pid)
192 #elif defined(UKERNEL)
193 #define osi_ThreadUnique() osi_getpid()
195 #define osi_ThreadUnique() getpid()
200 #ifdef AFS_GLOBAL_SUNLOCK
201 #define AFS_ASSERT_GLOCK() \
202 do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
203 #endif /* AFS_GLOBAL_SUNLOCK */
205 #ifdef RX_ENABLE_LOCKS
206 #define RX_AFS_GLOCK() AFS_GLOCK()
207 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
209 #define RX_AFS_GLOCK()
210 #define RX_AFS_GUNLOCK()
217 #define AFS_GUNLOCK()
218 #define ISAFS_GLOCK() 1
219 #define AFS_ASSERT_GLOCK()
222 /* On an MP that uses multithreading, splnet is not sufficient to provide
223 * mutual exclusion because the other processors will not see it. On some
224 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
225 * mutex, which this works in the UP expected way, it means that the whole MP
226 * can only take one interrupt at a time; a serious performance penalty. */
228 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
235 * vnode/vcache ref count manipulation
238 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
239 #else /* defined(UKERNEL) */
240 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
241 #endif /* defined(UKERNEL) */
244 * For some reason we do bare refcount manipulation in some places, for some
245 * platforms. The assumption is apparently that either we wouldn't call
246 * afs_inactive anyway (because we know the ref count is high), or that it's
247 * OK not to call it (because we don't expect CUnlinked or CDirty).
248 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
249 * macro for V-file vnodes.)
251 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
252 /* Bare refcount manipulation would probably work on this platform, but just
253 calling VREF does not */
254 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
256 #define AFS_FAST_HOLD(vp) VN_HOLD(AFSTOV(vp))
258 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
261 * MP safe versions of routines to copy memory between user space
262 * and kernel space. Call these to avoid taking page faults while
263 * holding the global lock.
265 #if defined(CAST_USER_ADDR_T) && !defined(UKERNEL) && !defined(AFS_DARWIN100_ENV)
266 #define __U(X) CAST_USER_ADDR_T((X))
270 #ifdef AFS_GLOBAL_SUNLOCK
272 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
274 int haveGlock = ISAFS_GLOCK(); \
277 CODE = copyin(__U((SRC)),(DST),(LEN)); \
282 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
284 int haveGlock = ISAFS_GLOCK(); \
287 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
292 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
294 int haveGlock = ISAFS_GLOCK(); \
297 CODE = copyout((SRC),__U((DST)),(LEN)); \
302 #if defined(AFS_DARWIN80_ENV)
303 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
305 int haveGlock = ISAFS_GLOCK(); \
308 uio_setrw((UIO),(RW)); \
309 CODE = uiomove((SRC),(LEN),(UIO)); \
314 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
315 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
317 int haveGlock = ISAFS_GLOCK(); \
320 (UIO)->uio_rw = (RW); \
321 CODE = uiomove((SRC),(LEN),(UIO)); \
326 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
328 int haveGlock = ISAFS_GLOCK(); \
331 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
336 #endif /* AFS_DARWIN80_ENV */
338 #else /* AFS_GLOBAL_SUNLOCK */
340 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
342 CODE = copyin(__U((SRC)),(DST),(LEN)); \
345 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
347 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
350 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
352 CODE = copyout((SRC),__U((DST)),(LEN)); \
355 #if defined(AFS_DARWIN80_ENV)
356 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
358 uio_setrw((UIO),(RW)); \
359 CODE = uiomove((SRC),(LEN),(UIO)); \
361 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
362 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
364 (UIO)->uio_rw = (RW); \
365 CODE = uiomove((SRC),(LEN),(UIO)); \
368 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
370 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
374 #endif /* AFS_GLOBAL_SUNLOCK */
376 #ifdef AFS_DARWIN80_ENV
377 #define AFS_UIO_OFFSET(uio) uio_offset(uio)
378 #define AFS_UIO_RESID(uio) (int)uio_resid(uio)
379 #define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
380 #define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
382 #define AFS_UIO_OFFSET(uio) (uio)->uio_offset
383 #define AFS_UIO_RESID(uio) (uio)->uio_resid
384 #define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
385 #define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
390 * encapsulation of kernel data structure accesses
392 #define setuerror(erval) u.u_error = (erval)
393 #define getuerror() u.u_error
395 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
396 * These are required for IRIX 6.4 and later, which pass behavior pointers.
397 * Note that the _CONVERT routines get the ";" here so that argument lists
398 * can have arguments after the OSI_x_CONVERT macro is called.
400 #define OSI_VN_ARG(V) V
401 #define OSI_VN_DECL(V) struct vnode *V
402 #define OSI_VN_CONVERT(V)
403 #define OSI_VC_ARG(V) V
404 #define OSI_VC_DECL(V) struct vcache *V
405 #define OSI_VC_CONVERT(V)
406 #define OSI_VFS_ARG(V) V
407 #define OSI_VFS_DECL(V) struct vfs *V
408 #define OSI_VFS_CONVERT(V)
412 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
414 #define AfsLargeFileUio(uio) 0
415 #define AfsLargeFileSize(pos, off) 0
417 /* Now include system specific OSI header file. It will redefine macros
418 * defined here as required by the OS.
420 #include "osi_machdep.h"
422 /* Declare any structures which use these macros after the OSI implementation
423 * has had the opportunity to redefine them.
425 extern afs_ucred_t afs_osi_cred, *afs_osi_credp;
428 #define osi_curcred() (u.u_cred)
431 #endif /* _AFS_OSI_ */