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 {
41 /* this is just a dummy type decl, we're really using struct sockets here */
47 afs_int32 size; /* file size in bytes */
48 afs_int32 mtime; /* modification date */
49 afs_int32 atime; /* access time */
53 afs_int32 size; /* file size in bytes XXX Must be first field XXX */
54 #ifdef AFS_LINUX26_ENV
55 struct file *filp; /* May need this if we really open the file. */
57 #ifdef AFS_LINUX22_ENV
58 struct dentry dentry; /* merely to hold the pointer to the inode. */
59 struct file file; /* May need this if we really open the file. */
64 #if defined(AFS_HPUX102_ENV)
67 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
73 int (*proc) (struct osi_file * afile, afs_int32 code); /* proc, which, if not null, is called on writes */
74 char *rock; /* rock passed to proc */
76 int fd; /* file descriptor for user space files */
77 #endif /* defined(UKERNEL) */
81 #if defined(AFS_XBSD_ENV)
83 struct vnode *held_vnode;
84 #elif defined(AFS_AIX42_ENV)
91 struct afs_osi_WaitHandle {
96 caddr_t proc; /* process waiting */
100 #define osi_SetFileProc(x,p) ((x)->proc=(p))
101 #define osi_SetFileRock(x,r) ((x)->rock=(r))
102 #define osi_GetFileProc(x) ((x)->proc)
103 #define osi_GetFileRock(x) ((x)->rock)
106 #define osi_FlushText(vp) if (hcmp((vp)->f.m.DataVersion, (vp)->flushDV) > 0) \
107 osi_FlushText_really(vp)
109 #define osi_FlushText(vp)
113 #define AFSOP_STOP_RXEVENT 214 /* stop rx event deamon */
114 #define AFSOP_STOP_COMPLETE 215 /* afs has been shutdown */
115 #define AFSOP_STOP_RXK_LISTENER 217 /* stop rx listener daemon */
118 #define osi_NPACKETS 20 /* number of cluster pkts to alloc */
121 * Alloc declarations.
123 #if !defined(AFS_OBSD44_ENV) && !defined(AFS_NBSD_ENV)
124 #define afs_osi_Alloc_NoSleep afs_osi_Alloc
128 * Default vnode related macros
130 * Darwin, all of the BSDs, and Linux have their own
132 #if !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV) && !defined(AFS_LINUX20_ENV)
133 # define vType(vc) (vc)->v.v_type
134 # define vSetType(vc,type) (vc)->v.v_type = (type)
135 # define vSetVfsp(vc,vfsp) (vc)->v.v_vfsp = (vfsp)
136 extern struct vnodeops *afs_ops;
137 # define IsAfsVnode(v) ((v)->v_op == afs_ops)
138 # define SetAfsVnode(v) (v)->v_op = afs_ops
142 extern int osi_TryEvictVCache(struct vcache *, int *);
143 extern struct vcache *osi_NewVnode(void);
144 extern void osi_PrePopulateVCache(struct vcache *);
145 extern void osi_PostPopulateVCache(struct vcache *);
146 extern void osi_AttachVnode(struct vcache *, int seq);
149 * In IRIX 6.5 we cannot have DEBUG turned on since certain
150 * system-defined structures are a different size with DEBUG on, the
151 * kernel is compiled without DEBUG on, and the resulting differences
152 * would break our ability to interact with the rest of the kernel.
154 * Is DEBUG only for turning the ASSERT() macro? If so, we should
155 * be able to eliminate DEBUG entirely.
157 #if !defined(AFS_SGI65_ENV)
159 #define DEBUG 1 /* Default is to enable debugging/logging */
164 * Time related macros
166 #define osi_GetuTime(x) osi_GetTime(x)
168 /* osi_timeval_t exists because SGI 6.x has two sizes of timeval. */
169 /** In 64 bit Solaris the timeval structure has members that are 64 bit
170 * In the GetTime() interface we expect pointers to afs_int32. So the need to
171 * define osi_timeval_t to have 32 bit members. To make this less ambiguous
172 * we now use 32 bit quantities consistently all over the code.
173 * In 64 bit HP-UX the timeval structure has a 64 bit member.
176 #if defined(AFS_HPUX_ENV) || defined(AFS_LINUX_64BIT_KERNEL) || (defined(AFS_SGI61_ENV) && defined(KERNEL) && defined(_K64U64))
181 #elif defined(AFS_SUN57_ENV)
182 typedef struct timeval32 osi_timeval_t;
184 typedef struct timeval osi_timeval_t;
185 #endif /* AFS_SGI61_ENV */
188 #define osi_getpid() getpid()
192 * osi_ThreadUnique() should yield a value that can be found in ps
193 * output in order to draw correspondences between ICL traces and what
194 * is going on in the system. So if ps cannot show thread IDs it is
195 * likely to be the process ID instead.
198 /* should use curthread, but 'ps' can't display it */
199 #define osi_ThreadUnique() (curproc->p_pid)
200 #elif defined(AFS_LINUX_ENV)
201 #define osi_ThreadUnique() (current->pid)
202 #elif defined(UKERNEL)
203 #define osi_ThreadUnique() osi_getpid()
205 #define osi_ThreadUnique() getpid()
210 #ifdef AFS_GLOBAL_SUNLOCK
211 #define AFS_ASSERT_GLOCK() \
212 do { if (!ISAFS_GLOCK()) osi_Panic("afs global lock not held at %s:%d\n", __FILE__, __LINE__); } while (0)
213 #endif /* AFS_GLOBAL_SUNLOCK */
215 #ifdef RX_ENABLE_LOCKS
216 #define RX_AFS_GLOCK() AFS_GLOCK()
217 #define RX_AFS_GUNLOCK() AFS_GUNLOCK()
219 #define RX_AFS_GLOCK()
220 #define RX_AFS_GUNLOCK()
227 #define AFS_GUNLOCK()
228 #define ISAFS_GLOCK() 1
229 #define AFS_ASSERT_GLOCK()
232 /* On an MP that uses multithreading, splnet is not sufficient to provide
233 * mutual exclusion because the other processors will not see it. On some
234 * early multiprocessors (SunOS413 & SGI5.2) splnet actually obtains a global
235 * mutex, which this works in the UP expected way, it means that the whole MP
236 * can only take one interrupt at a time; a serious performance penalty. */
238 #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) */
254 * For some reason we do bare refcount manipulation in some places, for some
255 * platforms. The assumption is apparently that either we wouldn't call
256 * afs_inactive anyway (because we know the ref count is high), or that it's
257 * OK not to call it (because we don't expect CUnlinked or CDirty).
258 * (Also, of course, the vnode is assumed to be one of ours. Can't use this
259 * macro for V-file vnodes.)
261 /* osi_vnhold is defined in PLATFORM/osi_machdep.h */
262 #define AFS_FAST_HOLD(vp) osi_vnhold((vp), 0)
265 #define AFS_FAST_RELE(vp) VREFCOUNT_DEC(vp)
267 #define AFS_FAST_RELE(vp) AFS_RELE(AFSTOV(vp))
271 * MP safe versions of routines to copy memory between user space
272 * and kernel space. Call these to avoid taking page faults while
273 * holding the global lock.
275 #if defined(CAST_USER_ADDR_T) && !defined(UKERNEL) && !defined(AFS_DARWIN100_ENV)
276 #define __U(X) CAST_USER_ADDR_T((X))
280 #ifdef AFS_GLOBAL_SUNLOCK
282 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
284 int haveGlock = ISAFS_GLOCK(); \
287 CODE = copyin(__U((SRC)),(DST),(LEN)); \
292 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
294 int haveGlock = ISAFS_GLOCK(); \
297 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
302 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
304 int haveGlock = ISAFS_GLOCK(); \
307 CODE = copyout((SRC),__U((DST)),(LEN)); \
312 #if defined(AFS_DARWIN80_ENV)
313 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
315 int haveGlock = ISAFS_GLOCK(); \
318 uio_setrw((UIO),(RW)); \
319 CODE = uiomove((SRC),(LEN),(UIO)); \
324 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
325 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
327 int haveGlock = ISAFS_GLOCK(); \
330 (UIO)->uio_rw = (RW); \
331 CODE = uiomove((SRC),(LEN),(UIO)); \
336 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
338 int haveGlock = ISAFS_GLOCK(); \
341 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
346 #endif /* AFS_DARWIN80_ENV */
348 #else /* AFS_GLOBAL_SUNLOCK */
350 #define AFS_COPYIN(SRC,DST,LEN,CODE) \
352 CODE = copyin(__U((SRC)),(DST),(LEN)); \
355 #define AFS_COPYINSTR(SRC,DST,LEN,CNT,CODE) \
357 CODE = copyinstr(__U((SRC)),(DST),(LEN),(CNT)); \
360 #define AFS_COPYOUT(SRC,DST,LEN,CODE) \
362 CODE = copyout((SRC),__U((DST)),(LEN)); \
365 #if defined(AFS_DARWIN80_ENV)
366 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
368 uio_setrw((UIO),(RW)); \
369 CODE = uiomove((SRC),(LEN),(UIO)); \
371 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
372 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
374 (UIO)->uio_rw = (RW); \
375 CODE = uiomove((SRC),(LEN),(UIO)); \
378 #define AFS_UIOMOVE(SRC,LEN,RW,UIO,CODE) \
380 CODE = uiomove((SRC),(LEN),(RW),(UIO)); \
384 #endif /* AFS_GLOBAL_SUNLOCK */
386 #ifdef AFS_DARWIN80_ENV
387 #define AFS_UIO_OFFSET(uio) uio_offset(uio)
388 #define AFS_UIO_RESID(uio) (int)uio_resid(uio)
389 #define AFS_UIO_SETOFFSET(uio, off) uio_setoffset(uio, off)
390 #define AFS_UIO_SETRESID(uio, val) uio_setresid(uio, val)
392 #define AFS_UIO_OFFSET(uio) (uio)->uio_offset
393 #define AFS_UIO_RESID(uio) (uio)->uio_resid
394 #define AFS_UIO_SETOFFSET(uio, off) (uio)->uio_offset = off
395 #define AFS_UIO_SETRESID(uio, val) (uio)->uio_resid = val
400 * encapsulation of kernel data structure accesses
403 #define setuerror(erval) u.u_error = (erval)
404 #define getuerror() u.u_error
407 /* Macros for vcache/vnode and vfs arguments to vnode and vfs ops.
408 * These are required for IRIX 6.4 and later, which pass behavior pointers.
409 * Note that the _CONVERT routines get the ";" here so that argument lists
410 * can have arguments after the OSI_x_CONVERT macro is called.
412 #define OSI_VN_ARG(V) V
413 #define OSI_VN_DECL(V) struct vnode *V
414 #define OSI_VN_CONVERT(V)
415 #define OSI_VC_ARG(V) V
416 #define OSI_VC_DECL(V) struct vcache *V
417 #define OSI_VC_CONVERT(V)
418 #define OSI_VFS_ARG(V) V
419 #define OSI_VFS_DECL(V) struct vfs *V
420 #define OSI_VFS_CONVERT(V)
424 ** Macro for Solaris 2.6 returns 1 if file is larger than 2GB; else returns 0
426 #define AfsLargeFileUio(uio) 0
427 #define AfsLargeFileSize(pos, off) 0
429 /* Now include system specific OSI header file. It will redefine macros
430 * defined here as required by the OS.
432 #include "osi_machdep.h"
434 /* Declare any structures which use these macros after the OSI implementation
435 * has had the opportunity to redefine them.
437 extern afs_ucred_t afs_osi_cred, *afs_osi_credp;
440 #define osi_curcred() (u.u_cred)
443 #endif /* _AFS_OSI_ */