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 {};
22 #ifndef _LINUX_XFS_FS_I
23 #define _LINUX_XFS_FS_I
24 struct xfs_inode_info {};
31 /* this is just a dummy type decl, we're really using struct sockets here */
37 afs_int32 size; /* file size in bytes */
38 afs_int32 blksize; /* optimal transfer size in bytes */
39 afs_int32 mtime; /* modification date */
40 afs_int32 atime; /* access time */
44 afs_int32 size; /* file size in bytes XXX Must be first field XXX */
45 #ifdef AFS_LINUX22_ENV
46 struct dentry dentry; /* merely to hold the pointer to the inode. */
47 struct file file; /* May need this if we really open the file. */
51 #if defined(AFS_HPUX102_ENV)
54 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
60 int (*proc)(struct osi_file *afile, afs_int32 code); /* proc, which, if not null, is called on writes */
61 char *rock; /* rock passed to proc */
62 ino_t inum; /* guarantee validity of hint */
64 int fd; /* file descriptor for user space files */
65 #endif /* defined(UKERNEL) */
71 struct vnode *held_vnode;
81 struct afs_osi_WaitHandle {
82 caddr_t proc; /* process waiting */
85 #define osi_SetFileProc(x,p) ((x)->proc=(p))
86 #define osi_SetFileRock(x,r) ((x)->rock=(r))
87 #define osi_GetFileProc(x) ((x)->proc)
88 #define osi_GetFileRock(x) ((x)->rock)
91 #define osi_FlushText(vp) if (hcmp((vp)->m.DataVersion, (vp)->flushDV) > 0) \
92 osi_FlushText_really(vp)
94 #define osi_FlushText(vp)
98 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
99 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
100 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
103 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
106 * Alloc declarations.
108 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
111 * Vnode related macros
114 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
115 extern int (**afs_vnodeop_p)();
116 #define IsAfsVnode(vc) ((vc)->v_op == afs_vnodeop_p)
117 #define SetAfsVnode(vc) (vc)->v_op = afs_vnodeop_p
119 extern struct vnodeops *afs_ops;
120 #define IsAfsVnode(vc) ((vc)->v_op == afs_ops)
121 #define SetAfsVnode(vc) (vc)->v_op = afs_ops
123 #define vType(vc) (vc)->v.v_type
124 #define vSetType(vc,type) (vc)->v.v_type = (type)
125 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
129 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
130 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp),\
134 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
135 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp))
140 * In IRIX 6.5 we cannot have DEBUG turned on since certain
141 * system-defined structures are a different size with DEBUG on, the
142 * kernel is compiled without DEBUG on, and the resulting differences
143 * would break our ability to interact with the rest of the kernel.
145 * Is DEBUG only for turning the ASSERT() macro? If so, we should
146 * be able to eliminate DEBUG entirely.
148 #if !defined(AFS_SGI65_ENV)
150 #define DEBUG 1 /* Default is to enable debugging/logging */
155 * Time related macros
157 #define osi_GetuTime(x) osi_GetTime(x)
159 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
160 /** In 64 bit Solaris the timeval structure has members that are 64 bit
161 * In the GetTime() interface we expect pointers to afs_int32. So the need to
162 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
163 * we now use 32 bit quantities consistently all over the code.
164 * In 64 bit HP-UX the timeval structure has a 64 bit member.
168 #if defined(AFS_HPUX_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
174 typedef struct timeval osi_timeval_t;
175 #endif /* AFS_SGI61_ENV */
178 * The following three routines provide the fid routines used by the buffer
179 * and directory packages.
181 #define dirp_Zap(afid) (*(afid) = -1)
182 #define dirp_Eq(afid, bfid) (*(afid) == *(bfid))
183 #define dirp_Cpy(dfid,sfid) (*(dfid) = *(sfid))
187 * osi_ThreadUnique() should yield a value that can be found in ps
188 * output in order to draw correspondences between ICL traces and what
189 * is going on in the system. So if ps cannot show thread IDs it is
190 * likely to be the process ID instead.
192 #ifdef AFS_FBSD50_ENV
193 /* should use curthread, but 'ps' can't display it */
194 #define osi_ThreadUnique() curproc
196 #define osi_ThreadUnique() getpid()
201 #ifdef AFS_GLOBAL_SUNLOCK
202 #define AFS_ASSERT_GLOCK() \
203 (ISAFS_GLOCK() || (osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__), 0))
204 #define AFS_ASSERT_RXGLOCK() \
205 (ISAFS_RXGLOCK() || (osi_Panic("rx global lock not held at %s:%d\n", __FILE__, __LINE__), 0))
206 #endif /* AFS_GLOBAL_SUNLOCK */
208 #ifdef RX_ENABLE_LOCKS
209 #define RX_AFS_GLOCK() AFS_GLOCK()
210 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
212 #define RX_AFS_GLOCK()
213 #define RX_AFS_GUNLOCK()
220 #define AFS_GUNLOCK()
221 #define ISAFS_GLOCK() 1
222 #define AFS_ASSERT_GLOCK()
223 #define AFS_RXGLOCK()
224 #define AFS_RXGUNLOCK()
225 #define ISAFS_RXGLOCK() 1
226 #define AFS_ASSERT_RXGLOCK()
229 /* On an MP that uses multithreading, splnet is not sufficient to provide
230 * mutual exclusion because the other processors will not see it. On some
231 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
232 * mutex, which this works in the UP expected way, it means that the whole MP
233 * can only take one interrupt at a time; a serious performance penalty. */
235 #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) */
253 * For some reason we do bare refcount manipulation in some places, for some
254 * platforms. The assumption is apparently that either we wouldn't call
255 * afs_inactive anyway (because we know the ref count is high), or that it's
256 * OK not to call it (because we don't expect CUnlinked or CDirty).
257 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
258 * macro for V-file vnodes.)
260 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
261 /* Bare refcount manipulation would probably work on this platform, but just
262 calling VREF does not */
263 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
265 #define AFS_FAST_HOLD(vp) VN_HOLD(&(vp)->v)
267 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
270 * MP safe versions of routines to copy memory between user space
271 * and kernel space. Call these to avoid taking page faults while
272 * holding the global lock.
274 #ifdef AFS_GLOBAL_SUNLOCK
276 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
278 int haveGlock = ISAFS_GLOCK(); \
281 CODE = copyin((SRC),(DST),(LEN)); \
286 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
288 int haveGlock = ISAFS_GLOCK(); \
291 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
296 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
298 int haveGlock = ISAFS_GLOCK(); \
301 CODE = copyout((SRC),(DST),(LEN)); \
306 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
307 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
309 int haveGlock = ISAFS_GLOCK(); \
312 (UIO)->uio_rw = (RW); \
313 CODE = uiomove((SRC),(LEN),(UIO)); \
318 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
320 int haveGlock = ISAFS_GLOCK(); \
323 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
329 #else /* AFS_GLOBAL_SUNLOCK */
331 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
333 CODE = copyin((SRC),(DST),(LEN)); \
336 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
338 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
341 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
343 CODE = copyout((SRC),(DST),(LEN)); \
346 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
347 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
349 (UIO)->uio_rw = (RW); \
350 CODE = uiomove((SRC),(LEN),(UIO)); \
352 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
353 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
355 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
357 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
359 #endif /* AFS_GLOBAL_SUNLOCK */
362 * encapsulation of kernel data structure accesses
364 #define setuerror(erval) u.u_error = (erval)
365 #define getuerror() u.u_error
367 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
368 * These are required for IRIX 6.4 and later, which pass behavior pointers.
369 * Note that the _CONVERT routines get the ";" here so that argument lists
370 * can have arguments after the OSI_x_CONVERT macro is called.
372 #define OSI_VN_ARG(V) V
373 #define OSI_VN_DECL(V) struct vnode *V
374 #define OSI_VN_CONVERT(V)
375 #define OSI_VC_ARG(V) V
376 #define OSI_VC_DECL(V) struct vcache *V
377 #define OSI_VC_CONVERT(V)
378 #define OSI_VFS_ARG(V) V
379 #define OSI_VFS_DECL(V) struct vfs *V
380 #define OSI_VFS_CONVERT(V)
384 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
386 #define AfsLargeFileUio(uio) 0
387 #define AfsLargeFileSize(pos, off) 0
389 /* Now include system specific OSI header file. It will redefine macros
390 * defined here as required by the OS.
392 #include "osi_machdep.h"
394 /* Declare any structures which use these macros after the OSI implementation
395 * has had the opportunity to redefine them.
397 extern struct AFS_UCRED afs_osi_cred;
400 #define osi_curcred() (u.u_cred)
403 #endif /* _AFS_OSI_ */