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
16 #ifdef AFS_LINUX20_ENV
17 #ifndef _LINUX_CODA_FS_I
18 #define _LINUX_CODA_FS_I
20 struct coda_inode_info {
23 #ifndef _LINUX_XFS_FS_I
24 #define _LINUX_XFS_FS_I
25 struct xfs_inode_info {
33 /* this is just a dummy type decl, we're really using struct sockets here */
39 afs_int32 size; /* file size in bytes */
40 afs_int32 blksize; /* optimal transfer size in bytes */
41 afs_int32 mtime; /* modification date */
42 afs_int32 atime; /* access time */
46 afs_int32 size; /* file size in bytes XXX Must be first field XXX */
47 #ifdef AFS_LINUX22_ENV
48 struct dentry dentry; /* merely to hold the pointer to the inode. */
49 struct file file; /* May need this if we really open the file. */
53 #if defined(AFS_HPUX102_ENV)
56 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
62 int (*proc) (struct osi_file * afile, afs_int32 code); /* proc, which, if not null, is called on writes */
63 char *rock; /* rock passed to proc */
64 ino_t inum; /* guarantee validity of hint */
66 int fd; /* file descriptor for user space files */
67 #endif /* defined(UKERNEL) */
73 struct vnode *held_vnode;
74 #elif defined(AFS_FBSD50_ENV)
76 #elif defined(AFS_AIX42_ENV)
83 struct afs_osi_WaitHandle {
84 caddr_t proc; /* process waiting */
87 #define osi_SetFileProc(x,p) ((x)->proc=(p))
88 #define osi_SetFileRock(x,r) ((x)->rock=(r))
89 #define osi_GetFileProc(x) ((x)->proc)
90 #define osi_GetFileRock(x) ((x)->rock)
93 #define osi_FlushText(vp) if (hcmp((vp)->m.DataVersion, (vp)->flushDV) > 0) \
94 osi_FlushText_really(vp)
96 #define osi_FlushText(vp)
100 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
101 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
102 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
105 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
108 * Alloc declarations.
110 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
113 * Vnode related macros
116 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
117 extern int (**afs_vnodeop_p) ();
118 #define IsAfsVnode(vc) ((vc)->v_op == afs_vnodeop_p)
119 #define SetAfsVnode(vc) (vc)->v_op = afs_vnodeop_p
121 extern struct vnodeops *afs_ops;
122 #define IsAfsVnode(vc) ((vc)->v_op == afs_ops)
123 #define SetAfsVnode(vc) (vc)->v_op = afs_ops
125 #define vType(vc) (vc)->v.v_type
126 #define vSetType(vc,type) (vc)->v.v_type = (type)
127 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
131 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
132 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp),\
136 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
137 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp))
142 * In IRIX 6.5 we cannot have DEBUG turned on since certain
143 * system-defined structures are a different size with DEBUG on, the
144 * kernel is compiled without DEBUG on, and the resulting differences
145 * would break our ability to interact with the rest of the kernel.
147 * Is DEBUG only for turning the ASSERT() macro? If so, we should
148 * be able to eliminate DEBUG entirely.
150 #if !defined(AFS_SGI65_ENV)
152 #define DEBUG 1 /* Default is to enable debugging/logging */
157 * Time related macros
159 #define osi_GetuTime(x) osi_GetTime(x)
161 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
162 /** In 64 bit Solaris the timeval structure has members that are 64 bit
163 * In the GetTime() interface we expect pointers to afs_int32. So the need to
164 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
165 * we now use 32 bit quantities consistently all over the code.
166 * In 64 bit HP-UX the timeval structure has a 64 bit member.
170 #if defined(AFS_HPUX_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
176 typedef struct timeval osi_timeval_t;
177 #endif /* AFS_SGI61_ENV */
180 * The following three routines provide the fid routines used by the buffer
181 * and directory packages.
183 #define dirp_Zap(afid) (*(afid) = -1)
184 #define dirp_Eq(afid, bfid) (*(afid) == *(bfid))
185 #define dirp_Cpy(dfid,sfid) (*(dfid) = *(sfid))
189 * osi_ThreadUnique() should yield a value that can be found in ps
190 * output in order to draw correspondences between ICL traces and what
191 * is going on in the system. So if ps cannot show thread IDs it is
192 * likely to be the process ID instead.
194 #ifdef AFS_FBSD50_ENV
195 /* should use curthread, but 'ps' can't display it */
196 #define osi_ThreadUnique() curproc
198 #define osi_ThreadUnique() getpid()
203 #ifdef AFS_GLOBAL_SUNLOCK
204 #define AFS_ASSERT_GLOCK() \
205 (ISAFS_GLOCK() || (osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__), 0))
206 #define AFS_ASSERT_RXGLOCK() \
207 (ISAFS_RXGLOCK() || (osi_Panic("rx global lock not held at %s:%d\n", __FILE__, __LINE__), 0))
208 #endif /* AFS_GLOBAL_SUNLOCK */
210 #ifdef RX_ENABLE_LOCKS
211 #define RX_AFS_GLOCK() AFS_GLOCK()
212 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
214 #define RX_AFS_GLOCK()
215 #define RX_AFS_GUNLOCK()
222 #define AFS_GUNLOCK()
223 #define ISAFS_GLOCK() 1
224 #define AFS_ASSERT_GLOCK()
225 #define AFS_RXGLOCK()
226 #define AFS_RXGUNLOCK()
227 #define ISAFS_RXGLOCK() 1
228 #define AFS_ASSERT_RXGLOCK()
231 /* On an MP that uses multithreading, splnet is not sufficient to provide
232 * mutual exclusion because the other processors will not see it. On some
233 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
234 * mutex, which this works in the UP expected way, it means that the whole MP
235 * can only take one interrupt at a time; a serious performance penalty. */
237 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
245 * vnode/vcache ref count manipulation
248 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
249 #else /* defined(UKERNEL) */
250 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
251 #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 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
263 /* Bare refcount manipulation would probably work on this platform, but just
264 calling VREF does not */
265 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
267 #define AFS_FAST_HOLD(vp) VN_HOLD(&(vp)->v)
269 #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 #ifdef AFS_GLOBAL_SUNLOCK
278 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
280 int haveGlock = ISAFS_GLOCK(); \
283 CODE = copyin((SRC),(DST),(LEN)); \
288 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
290 int haveGlock = ISAFS_GLOCK(); \
293 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
298 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
300 int haveGlock = ISAFS_GLOCK(); \
303 CODE = copyout((SRC),(DST),(LEN)); \
308 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
309 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
311 int haveGlock = ISAFS_GLOCK(); \
314 (UIO)->uio_rw = (RW); \
315 CODE = uiomove((SRC),(LEN),(UIO)); \
320 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
322 int haveGlock = ISAFS_GLOCK(); \
325 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
331 #else /* AFS_GLOBAL_SUNLOCK */
333 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
335 CODE = copyin((SRC),(DST),(LEN)); \
338 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
340 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
343 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
345 CODE = copyout((SRC),(DST),(LEN)); \
348 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
349 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
351 (UIO)->uio_rw = (RW); \
352 CODE = uiomove((SRC),(LEN),(UIO)); \
354 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
355 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
357 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
359 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
361 #endif /* AFS_GLOBAL_SUNLOCK */
364 * encapsulation of kernel data structure accesses
366 #define setuerror(erval) u.u_error = (erval)
367 #define getuerror() u.u_error
369 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
370 * These are required for IRIX 6.4 and later, which pass behavior pointers.
371 * Note that the _CONVERT routines get the ";" here so that argument lists
372 * can have arguments after the OSI_x_CONVERT macro is called.
374 #define OSI_VN_ARG(V) V
375 #define OSI_VN_DECL(V) struct vnode *V
376 #define OSI_VN_CONVERT(V)
377 #define OSI_VC_ARG(V) V
378 #define OSI_VC_DECL(V) struct vcache *V
379 #define OSI_VC_CONVERT(V)
380 #define OSI_VFS_ARG(V) V
381 #define OSI_VFS_DECL(V) struct vfs *V
382 #define OSI_VFS_CONVERT(V)
386 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
388 #define AfsLargeFileUio(uio) 0
389 #define AfsLargeFileSize(pos, off) 0
391 /* Now include system specific OSI header file. It will redefine macros
392 * defined here as required by the OS.
394 #include "osi_machdep.h"
396 /* Declare any structures which use these macros after the OSI implementation
397 * has had the opportunity to redefine them.
399 extern struct AFS_UCRED afs_osi_cred, *afs_osi_credp;
402 #define osi_curcred() (u.u_cred)
405 #endif /* _AFS_OSI_ */