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
13 #include "../h/types.h"
14 #include "../h/param.h"
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)
56 int (*proc)(); /* proc, which, if not null, is called on writes */
57 char *rock; /* rock passed to proc */
58 ino_t inum; /* guarantee validity of hint */
60 int fd; /* file descriptor for user space files */
61 #endif /* defined(UKERNEL) */
68 struct afs_osi_WaitHandle {
69 caddr_t proc; /* process waiting */
72 #define osi_SetFileProc(x,p) ((x)->proc=(p))
73 #define osi_SetFileRock(x,r) ((x)->rock=(r))
74 #define osi_GetFileProc(x) ((x)->proc)
75 #define osi_GetFileRock(x) ((x)->rock)
78 #define osi_FlushText(vp) if (hcmp((vp)->m.DataVersion, (vp)->flushDV) > 0) \
79 osi_FlushText_really(vp)
81 #define osi_FlushText(vp)
85 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
86 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
87 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
90 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
91 extern struct osi_socket *osi_NewSocket();
97 extern void *afs_osi_Alloc(size_t size);
98 extern void afs_osi_Free(void *x, size_t size);
99 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
101 extern void *osi_AllocSmallSpace(size_t size);
102 extern void osi_FreeSmallSpace(void *x);
103 extern void *osi_AllocMediumSpace(size_t size);
104 extern void osi_FreeMediumSpace(void *x);
105 extern void *osi_AllocLargeSpace(size_t size);
106 extern void osi_FreeLargeSpace(void *x);
109 * Vnode related macros
111 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
112 extern int (**afs_vnodeop_p)();
113 #define IsAfsVnode(vc) ((vc)->v_op == afs_vnodeop_p)
114 #define SetAfsVnode(vc) (vc)->v_op = afs_vnodeop_p
116 extern struct vnodeops *afs_ops;
117 #define IsAfsVnode(vc) ((vc)->v_op == afs_ops)
118 #define SetAfsVnode(vc) (vc)->v_op = afs_ops
120 #define vType(vc) (vc)->v.v_type
121 #define vSetType(vc,type) (vc)->v.v_type = (type)
122 #define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
125 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
126 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp),\
129 #define gop_lookupname(fnamep,segflg,followlink,dirvpp,compvpp) \
130 lookupname((fnamep),(segflg),(followlink),(dirvpp),(compvpp))
134 * In IRIX 6.5 we cannot have DEBUG turned on since certain
135 * system-defined structures are a different size with DEBUG on, the
136 * kernel is compiled without DEBUG on, and the resulting differences
137 * would break our ability to interact with the rest of the kernel.
139 * Is DEBUG only for turning the ASSERT() macro? If so, we should
140 * be able to eliminate DEBUG entirely.
142 #if !defined(AFS_SGI65_ENV)
144 #define DEBUG 1 /* Default is to enable debugging/logging */
149 * Time related macros
151 #define osi_GetuTime(x) osi_GetTime(x)
153 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
154 /** In 64 bit Solaris the timeval structure has members that are 64 bit
155 * In the GetTime() interface we expect pointers to afs_int32. So the need to
156 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
157 * we now use 32 bit quantities consistently all over the code.
158 * In 64 bit HP-UX the timeval structure has a 64 bit member.
162 #if defined(AFS_HPUX_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
168 typedef struct timeval osi_timeval_t;
169 #endif /* AFS_SGI61_ENV */
172 * The following three routines provide the fid routines used by the buffer
173 * and directory packages.
175 #define dirp_Zap(afid) (*(afid) = -1)
176 #define dirp_Eq(afid, bfid) (*(afid) == *(bfid))
177 #define dirp_Cpy(dfid,sfid) (*(dfid) = *(sfid))
181 * osi_ThreadUnique() should yield a value that can be found in ps
182 * output in order to draw correspondences between ICL traces and what
183 * is going on in the system. So if ps cannot show thread IDs it is
184 * likely to be the process ID instead.
186 #define osi_ThreadUnique() getpid()
190 #ifdef AFS_GLOBAL_SUNLOCK
191 #define AFS_ASSERT_GLOCK() \
192 (ISAFS_GLOCK() || (osi_Panic("afs global lock not held"), 0))
193 #define AFS_ASSERT_RXGLOCK() \
194 (ISAFS_RXGLOCK() || (osi_Panic("rx global lock not held"), 0))
195 #endif /* AFS_GLOBAL_SUNLOCK */
197 #ifdef RX_ENABLE_LOCKS
198 #define RX_AFS_GLOCK() AFS_GLOCK()
199 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
201 #define RX_AFS_GLOCK()
202 #define RX_AFS_GUNLOCK()
209 #define AFS_GUNLOCK()
210 #define ISAFS_GLOCK() 1
211 #define AFS_ASSERT_GLOCK()
212 #define AFS_RXGLOCK()
213 #define AFS_RXGUNLOCK()
214 #define ISAFS_RXGLOCK() 1
215 #define AFS_ASSERT_RXGLOCK()
218 /* On an MP that uses multithreading, splnet is not sufficient to provide
219 * mutual exclusion because the other processors will not see it. On some
220 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
221 * mutex, which this works in the UP expected way, it means that the whole MP
222 * can only take one interrupt at a time; a serious performance penalty. */
224 #if ((defined(AFS_GLOBAL_SUNLOCK) || defined(RX_ENABLE_LOCKS)) && !defined(AFS_HPUX_ENV)) || !defined(KERNEL)
231 * vnode/vcache ref count manipulation
234 #define AFS_RELE(vp) do { VN_RELE(vp); } while (0)
235 #else /* defined(UKERNEL) */
236 #define AFS_RELE(vp) do { AFS_GUNLOCK(); VN_RELE(vp); AFS_GLOCK(); } while (0)
237 #endif /* defined(UKERNEL) */
239 * For some reason we do bare refcount manipulation in some places, for some
240 * platforms. The assumption is apparently that either we wouldn't call
241 * afs_inactive anyway (because we know the ref count is high), or that it's
242 * OK not to call it (because we don't expect CUnlinked or CDirty).
243 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
244 * macro for V-file vnodes.)
246 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
247 /* Bare refcount manipulation would probably work on this platform, but just
248 calling VREF does not */
249 #define AFS_FAST_HOLD(vp) osi_vnhold((vp),0)
251 #define AFS_FAST_HOLD(vp) VN_HOLD(&(vp)->v)
253 #define AFS_FAST_RELE(vp) AFS_RELE(&(vp)->v)
256 * MP safe versions of routines to copy memory between user space
257 * and kernel space. Call these to avoid taking page faults while
258 * holding the global lock.
260 #ifdef AFS_GLOBAL_SUNLOCK
262 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
264 int haveGlock = ISAFS_GLOCK(); \
267 CODE = copyin((SRC),(DST),(LEN)); \
272 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
274 int haveGlock = ISAFS_GLOCK(); \
277 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
282 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
284 int haveGlock = ISAFS_GLOCK(); \
287 CODE = copyout((SRC),(DST),(LEN)); \
292 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
293 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
295 int haveGlock = ISAFS_GLOCK(); \
298 (UIO)->uio_rw = (RW); \
299 CODE = uiomove((SRC),(LEN),(UIO)); \
303 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
304 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
306 int haveGlock = ISAFS_GLOCK(); \
309 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
313 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
315 #else /* AFS_GLOBAL_SUNLOCK */
317 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
319 CODE = copyin((SRC),(DST),(LEN)); \
322 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
324 CODE = copyinstr((SRC),(DST),(LEN),(CNT)); \
327 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
329 CODE = copyout((SRC),(DST),(LEN)); \
332 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
333 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
335 (UIO)->uio_rw = (RW); \
336 CODE = uiomove((SRC),(LEN),(UIO)); \
338 #else /* AFS_OSF_ENV || AFS_FBSD_ENV */
339 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
341 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
343 #endif /* AFS_OSF_ENV || AFS_FBSD_ENV */
345 #endif /* AFS_GLOBAL_SUNLOCK */
348 * encapsulation of kernel data structure accesses
350 #define setuerror(erval) u.u_error = (erval)
351 #define getuerror() u.u_error
353 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
354 * These are required for IRIX 6.4 and later, which pass behavior pointers.
355 * Note that the _CONVERT routines get the ";" here so that argument lists
356 * can have arguments after the OSI_x_CONVERT macro is called.
358 #define OSI_VN_ARG(V) V
359 #define OSI_VN_DECL(V) struct vnode *V
360 #define OSI_VN_CONVERT(V)
361 #define OSI_VC_ARG(V) V
362 #define OSI_VC_DECL(V) struct vcache *V
363 #define OSI_VC_CONVERT(V)
364 #define OSI_VFS_ARG(V) V
365 #define OSI_VFS_DECL(V) struct vfs *V
366 #define OSI_VFS_CONVERT(V)
370 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
372 #define AfsLargeFileUio(uio) 0
373 #define AfsLargeFileSize(pos, off) 0
376 /* VM function prototypes.
378 #if defined(AFS_SUN5_ENV)
379 extern int osi_VM_GetDownD();
380 extern void osi_VM_PreTruncate();
382 #if defined(AFS_SGI_ENV)
383 extern void osi_VM_FSyncInval();
385 extern int osi_VM_FlushVCache();
386 extern void osi_VM_StoreAllSegments();
387 extern void osi_VM_TryToSmush();
388 extern void osi_VM_FlushPages();
389 extern void osi_VM_Truncate();
391 extern void osi_ReleaseVM();
393 /* Now include system specific OSI header file. It will redefine macros
394 * defined here as required by the OS.
396 #include "../afs/osi_machdep.h"
398 /* Declare any structures which use these macros after the OSI implementation
399 * has had the opportunity to redefine them.
401 extern struct AFS_UCRED afs_osi_cred;
403 #endif /* _AFS_OSI_ */