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805e021f CE |
1 | /* |
2 | * Copyright 2000, International Business Machines Corporation and others. | |
3 | * All Rights Reserved. | |
4 | * | |
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 | |
8 | */ | |
9 | ||
10 | #include <afsconfig.h> | |
11 | #include "afs/param.h" | |
12 | ||
13 | ||
14 | #include "h/systm.h" | |
15 | #include "h/types.h" | |
16 | #include "h/errno.h" | |
17 | #include "h/stat.h" | |
18 | #include "h/user.h" | |
19 | #include "h/uio.h" | |
20 | #include "h/vattr.h" | |
21 | #include "h/file.h" | |
22 | #include "h/vfs.h" | |
23 | #include "h/chownx.h" | |
24 | #include "h/systm.h" | |
25 | #include "h/access.h" | |
26 | #ifdef AFS_AIX51_ENV | |
27 | #include "h/acl.h" | |
28 | #endif | |
29 | #include "rpc/types.h" | |
30 | #include "osi_vfs.h" | |
31 | #include "netinet/in.h" | |
32 | #include "h/mbuf.h" | |
33 | #include "h/vmuser.h" | |
34 | #include "h/shm.h" | |
35 | #include "rpc/xdr.h" | |
36 | ||
37 | #include "afs/stds.h" | |
38 | #include "afs/afs_osi.h" | |
39 | #define RFTP_INTERNALS 1 | |
40 | #include "afs/volerrors.h" | |
41 | #include "afsint.h" | |
42 | #include "vldbint.h" | |
43 | #include "afs/lock.h" | |
44 | #include "afs/exporter.h" | |
45 | #include "afs/afs.h" | |
46 | #include "afs/afs_chunkops.h" | |
47 | #include "afs/afs_stats.h" | |
48 | #include "afs/nfsclient.h" | |
49 | #include "afs/icl.h" | |
50 | #include "afs/prs_fs.h" | |
51 | #include "h/flock.h" | |
52 | #include "afsincludes.h" | |
53 | ||
54 | ||
55 | int | |
56 | afs_gn_link(struct vnode *vp, | |
57 | struct vnode *dp, | |
58 | char *name, | |
59 | struct ucred *cred) | |
60 | { | |
61 | int error; | |
62 | ||
63 | AFS_STATCNT(afs_gn_link); | |
64 | error = afs_link(vp, dp, name, cred); | |
65 | afs_Trace3(afs_iclSetp, CM_TRACE_GNLINK, ICL_TYPE_POINTER, vp, | |
66 | ICL_TYPE_STRING, name, ICL_TYPE_LONG, error); | |
67 | return (error); | |
68 | } | |
69 | ||
70 | ||
71 | int | |
72 | afs_gn_mkdir(struct vnode *dp, | |
73 | char *name, | |
74 | int32long64_t Mode, | |
75 | struct ucred *cred) | |
76 | { | |
77 | struct vattr va; | |
78 | struct vnode *vp; | |
79 | int error; | |
80 | int mode = Mode; | |
81 | ||
82 | AFS_STATCNT(afs_gn_mkdir); | |
83 | VATTR_NULL(&va); | |
84 | va.va_type = VDIR; | |
85 | va.va_mode = (mode & 07777) & ~get_umask(); | |
86 | error = afs_mkdir(dp, name, &va, &vp, cred); | |
87 | if (!error) { | |
88 | AFS_RELE(vp); | |
89 | } | |
90 | afs_Trace4(afs_iclSetp, CM_TRACE_GMKDIR, ICL_TYPE_POINTER, vp, | |
91 | ICL_TYPE_STRING, name, ICL_TYPE_LONG, mode, ICL_TYPE_LONG, | |
92 | error); | |
93 | return (error); | |
94 | } | |
95 | ||
96 | ||
97 | int | |
98 | afs_gn_mknod(struct vnode *dp, | |
99 | char *name, | |
100 | int32long64_t Mode, | |
101 | dev_t dev, | |
102 | struct ucred *cred) | |
103 | { | |
104 | struct vattr va; | |
105 | struct vnode *vp; | |
106 | int error; | |
107 | int mode = Mode; | |
108 | ||
109 | AFS_STATCNT(afs_gn_mknod); | |
110 | VATTR_NULL(&va); | |
111 | va.va_type = IFTOVT(mode); | |
112 | va.va_mode = (mode & 07777) & ~get_umask(); | |
113 | ||
114 | /**** I'm not sure if suser() should stay here since it makes no sense in AFS; however the documentation says that one "should be super-user unless making a FIFO file. Others systems such as SUN do this checking in the early stages of mknod (before the abstraction), so it's equivalently the same! *****/ | |
115 | if (va.va_type != VFIFO && !suser((char *)&error)) | |
116 | return (EPERM); | |
117 | switch (va.va_type) { | |
118 | case VDIR: | |
119 | error = afs_mkdir(dp, name, &va, &vp, cred); | |
120 | break; | |
121 | case VNON: | |
122 | error = EINVAL; | |
123 | break; | |
124 | case VBAD: | |
125 | case VCHR: | |
126 | case VBLK: | |
127 | va.va_rdev = dev; | |
128 | default: | |
129 | error = afs_create(VTOAFS(dp), name, &va, NONEXCL, mode, (struct vcache **)&vp, cred); | |
130 | } | |
131 | if (!error) { | |
132 | AFS_RELE(vp); | |
133 | } | |
134 | afs_Trace4(afs_iclSetp, CM_TRACE_GMKNOD, ICL_TYPE_POINTER, (afs_int32) vp, | |
135 | ICL_TYPE_STRING, name, ICL_TYPE_LONG, mode, ICL_TYPE_LONG, | |
136 | error); | |
137 | return (error); | |
138 | } | |
139 | ||
140 | ||
141 | int | |
142 | afs_gn_remove(struct vnode *vp, /* Ignored in AFS */ | |
143 | struct vnode * dp, | |
144 | char *name, | |
145 | struct ucred *cred) | |
146 | { | |
147 | int error; | |
148 | ||
149 | AFS_STATCNT(afs_gn_remove); | |
150 | error = afs_remove(dp, name, cred); | |
151 | afs_Trace3(afs_iclSetp, CM_TRACE_GREMOVE, ICL_TYPE_POINTER, dp, | |
152 | ICL_TYPE_STRING, name, ICL_TYPE_LONG, error); | |
153 | return (error); | |
154 | } | |
155 | ||
156 | ||
157 | int | |
158 | afs_gn_rename(struct vnode *vp, /* Ignored in AFS */ | |
159 | struct vnode *dp, | |
160 | char *name, | |
161 | struct vnode *tp, /* Ignored in AFS */ | |
162 | struct vnode *tdp, | |
163 | char *tname, | |
164 | struct ucred *cred) | |
165 | { | |
166 | int error; | |
167 | ||
168 | AFS_STATCNT(afs_gn_rename); | |
169 | error = afs_rename(dp, name, tdp, tname, cred); | |
170 | afs_Trace4(afs_iclSetp, CM_TRACE_GRENAME, ICL_TYPE_POINTER, dp, | |
171 | ICL_TYPE_STRING, name, ICL_TYPE_STRING, tname, ICL_TYPE_LONG, | |
172 | error); | |
173 | return (error); | |
174 | } | |
175 | ||
176 | ||
177 | int | |
178 | afs_gn_rmdir(struct vnode *vp, /* Ignored in AFS */ | |
179 | struct vnode *dp, | |
180 | char *name, | |
181 | struct ucred *cred) | |
182 | { | |
183 | int error; | |
184 | ||
185 | AFS_STATCNT(afs_gn_rmdir); | |
186 | error = afs_rmdir(dp, name, cred); | |
187 | if (error) { | |
188 | if (error == 66 /* 4.3's ENOTEMPTY */ ) | |
189 | error = EEXIST; /* AIX returns EEXIST where 4.3 used ENOTEMPTY */ | |
190 | } | |
191 | afs_Trace3(afs_iclSetp, CM_TRACE_GRMDIR, ICL_TYPE_POINTER, dp, | |
192 | ICL_TYPE_STRING, name, ICL_TYPE_LONG, error); | |
193 | return (error); | |
194 | } | |
195 | ||
196 | ||
197 | int | |
198 | afs_gn_lookup(struct vnode *dp, | |
199 | struct vnode **vpp, | |
200 | char *name, | |
201 | int32long64_t Flags, /* includes FOLLOW... */ | |
202 | struct vattr *vattrp, | |
203 | struct ucred *cred) | |
204 | { | |
205 | int error; | |
206 | int flags = Flags; | |
207 | ||
208 | AFS_STATCNT(afs_gn_lookup); | |
209 | error = afs_lookup(dp, name, vpp, cred); | |
210 | afs_Trace3(afs_iclSetp, CM_TRACE_GLOOKUP, ICL_TYPE_POINTER, dp, | |
211 | ICL_TYPE_STRING, name, ICL_TYPE_LONG, error); | |
212 | if (vattrp != NULL && error == 0) | |
213 | afs_gn_getattr(*vpp, vattrp, cred); | |
214 | return (error); | |
215 | } | |
216 | ||
217 | ||
218 | int | |
219 | afs_gn_fid(struct vnode *vp, | |
220 | struct fid *fidp, | |
221 | struct ucred *cred) | |
222 | { | |
223 | int error; | |
224 | ||
225 | AFS_STATCNT(afs_gn_fid); | |
226 | error = afs_fid(vp, fidp); | |
227 | afs_Trace3(afs_iclSetp, CM_TRACE_GFID, ICL_TYPE_POINTER, vp, | |
228 | ICL_TYPE_LONG, (afs_int32) fidp, ICL_TYPE_LONG, error); | |
229 | return (error); | |
230 | } | |
231 | ||
232 | ||
233 | int | |
234 | afs_gn_open(struct vnode *vp, | |
235 | int32long64_t Flags, | |
236 | ext_t ext, | |
237 | struct ucred **vinfop, | |
238 | struct ucred *cred) | |
239 | { | |
240 | int error; | |
241 | struct vattr va; | |
242 | struct vcache *tvp = VTOAFS(vp); | |
243 | afs_int32 modes; | |
244 | int flags = Flags; | |
245 | ||
246 | AFS_STATCNT(afs_gn_open); | |
247 | modes = 0; | |
248 | if ((flags & FREAD)) | |
249 | modes |= R_ACC; | |
250 | if ((flags & FEXEC)) | |
251 | modes |= X_ACC; | |
252 | if ((flags & FWRITE) || (flags & FTRUNC)) | |
253 | modes |= W_ACC; | |
254 | ||
255 | while ((flags & FNSHARE) && tvp->opens) { | |
256 | if (!(flags & FDELAY)) { | |
257 | error = ETXTBSY; | |
258 | goto abort; | |
259 | } | |
260 | afs_osi_Sleep(&tvp->opens); | |
261 | } | |
262 | ||
263 | error = afs_access(VTOAFS(vp), modes, cred); | |
264 | if (error) { | |
265 | goto abort; | |
266 | } | |
267 | ||
268 | error = afs_open((struct vcache **) &vp, flags, cred); | |
269 | if (!error) { | |
270 | if (flags & FTRUNC) { | |
271 | VATTR_NULL(&va); | |
272 | va.va_size = 0; | |
273 | error = afs_setattr(VTOAFS(vp), &va, cred); | |
274 | } | |
275 | ||
276 | if (flags & FNSHARE) | |
277 | tvp->f.states |= CNSHARE; | |
278 | ||
279 | if (!error) { | |
280 | *vinfop = cred; /* fp->f_vinfo is like fp->f_cred in suns */ | |
281 | } else { | |
282 | /* an error occurred; we've told CM that the file | |
283 | * is open, so close it now so that open and | |
284 | * writer counts are correct. Ignore error code, | |
285 | * as it is likely to fail (the setattr just did). | |
286 | */ | |
287 | afs_close(vp, flags, cred); | |
288 | } | |
289 | } | |
290 | ||
291 | abort: | |
292 | afs_Trace3(afs_iclSetp, CM_TRACE_GOPEN, ICL_TYPE_POINTER, vp, | |
293 | ICL_TYPE_LONG, flags, ICL_TYPE_LONG, error); | |
294 | return (error); | |
295 | } | |
296 | ||
297 | ||
298 | int | |
299 | afs_gn_create(struct vnode *dp, | |
300 | struct vnode **vpp, | |
301 | int32long64_t Flags, | |
302 | char *name, | |
303 | int32long64_t Mode, | |
304 | struct ucred **vinfop, /* return ptr for fp->f_vinfo, used as fp->f_cred */ | |
305 | struct ucred *cred) | |
306 | ||
307 | { | |
308 | struct vattr va; | |
309 | enum vcexcl exclusive; | |
310 | int error, modes = 0; | |
311 | int flags = Flags; | |
312 | int mode = Mode; | |
313 | ||
314 | AFS_STATCNT(afs_gn_create); | |
315 | if ((flags & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT)) | |
316 | exclusive = EXCL; | |
317 | else | |
318 | exclusive = NONEXCL; | |
319 | VATTR_NULL(&va); | |
320 | va.va_type = VREG; | |
321 | va.va_mode = (mode & 07777) & ~get_umask(); | |
322 | if ((flags & FREAD)) | |
323 | modes |= R_ACC; | |
324 | if ((flags & FEXEC)) | |
325 | modes |= X_ACC; | |
326 | if ((flags & FWRITE) || (flags & FTRUNC)) | |
327 | modes |= W_ACC; | |
328 | error = afs_create(VTOAFS(dp), name, &va, exclusive, modes, (struct vcache **)vpp, cred); | |
329 | if (error) { | |
330 | return error; | |
331 | } | |
332 | /* 'cr_luid' is a flag (when it comes thru the NFS server it's set to | |
333 | * RMTUSER_REQ) that determines if we should call afs_open(). We shouldn't | |
334 | * call it when this NFS traffic since the close will never happen thus | |
335 | * we'd never flush the files out to the server! Gross but the simplest | |
336 | * solution we came out with */ | |
337 | if (cred->cr_luid != RMTUSER_REQ) { | |
338 | while ((flags & FNSHARE) && VTOAFS(*vpp)->opens) { | |
339 | if (!(flags & FDELAY)) | |
340 | return ETXTBSY; | |
341 | afs_osi_Sleep(&VTOAFS(*vpp)->opens); | |
342 | } | |
343 | /* Since in the standard copen() for bsd vnode kernels they do an | |
344 | * vop_open after the vop_create, we must do the open here since there | |
345 | * are stuff in afs_open that we need. For example advance the | |
346 | * execsOrWriters flag (else we'll be treated as the sun's "core" | |
347 | * case). */ | |
348 | *vinfop = cred; /* save user creds in fp->f_vinfo */ | |
349 | error = afs_open((struct vcache **)vpp, flags, cred); | |
350 | } | |
351 | afs_Trace4(afs_iclSetp, CM_TRACE_GCREATE, ICL_TYPE_POINTER, dp, | |
352 | ICL_TYPE_STRING, name, ICL_TYPE_LONG, mode, ICL_TYPE_LONG, | |
353 | error); | |
354 | return error; | |
355 | } | |
356 | ||
357 | ||
358 | int | |
359 | afs_gn_hold(struct vnode *vp) | |
360 | { | |
361 | AFS_STATCNT(afs_gn_hold); | |
362 | ++(vp->v_count); | |
363 | return (0); | |
364 | } | |
365 | ||
366 | int vmPageHog = 0; | |
367 | ||
368 | int | |
369 | afs_gn_rele(struct vnode *vp) | |
370 | { | |
371 | struct vcache *vcp = VTOAFS(vp); | |
372 | int error = 0; | |
373 | ||
374 | AFS_STATCNT(afs_gn_rele); | |
375 | if (vp->v_count == 0) | |
376 | osi_Panic("afs_rele: zero v_count"); | |
377 | if (--(vp->v_count) == 0) { | |
378 | if (vcp->f.states & CPageHog) { | |
379 | vmPageHog--; | |
380 | vcp->f.states &= ~CPageHog; | |
381 | } | |
382 | error = afs_inactive(vp, 0); | |
383 | } | |
384 | return (error); | |
385 | } | |
386 | ||
387 | ||
388 | int | |
389 | afs_gn_close(struct vnode *vp, | |
390 | int32long64_t Flags, | |
391 | caddr_t vinfo, /* Ignored in AFS */ | |
392 | struct ucred *cred) | |
393 | { | |
394 | int error; | |
395 | struct vcache *tvp = VTOAFS(vp); | |
396 | int flags = Flags; | |
397 | ||
398 | AFS_STATCNT(afs_gn_close); | |
399 | ||
400 | if (flags & FNSHARE) { | |
401 | tvp->f.states &= ~CNSHARE; | |
402 | afs_osi_Wakeup(&tvp->opens); | |
403 | } | |
404 | ||
405 | error = afs_close(vp, flags, cred); | |
406 | afs_Trace3(afs_iclSetp, CM_TRACE_GCLOSE, ICL_TYPE_POINTER, (afs_int32) vp, | |
407 | ICL_TYPE_LONG, flags, ICL_TYPE_LONG, error); | |
408 | return (error); | |
409 | } | |
410 | ||
411 | ||
412 | int | |
413 | afs_gn_map(struct vnode *vp, | |
414 | caddr_t addr, | |
415 | uint32long64_t Len, | |
416 | uint32long64_t Off, | |
417 | uint32long64_t Flag, | |
418 | struct ucred *cred) | |
419 | { | |
420 | struct vcache *vcp = VTOAFS(vp); | |
421 | struct vrequest treq; | |
422 | afs_int32 error; | |
423 | afs_int32 len = Len; | |
424 | afs_int32 off = Off; | |
425 | afs_int32 flag = Flag; | |
426 | ||
427 | AFS_STATCNT(afs_gn_map); | |
428 | #ifdef notdef | |
429 | if (error = afs_InitReq(&treq, cred)) | |
430 | return error; | |
431 | error = afs_VerifyVCache(vcp, &treq); | |
432 | if (error) | |
433 | return afs_CheckCode(error, &treq, 49); | |
434 | #endif | |
435 | osi_FlushPages(vcp, cred); /* XXX ensure old pages are gone XXX */ | |
436 | ObtainWriteLock(&vcp->lock, 401); | |
437 | vcp->f.states |= CMAPPED; /* flag cleared at afs_inactive */ | |
438 | /* | |
439 | * We map the segment into our address space using the handle returned by vm_create. | |
440 | */ | |
441 | if (!vcp->segid) { | |
442 | afs_uint32 tlen = vcp->f.m.Length; | |
443 | #ifdef AFS_64BIT_CLIENT | |
444 | if (vcp->f.m.Length > afs_vmMappingEnd) | |
445 | tlen = afs_vmMappingEnd; | |
446 | #endif | |
447 | /* Consider V_INTRSEG too for interrupts */ | |
448 | if (error = | |
449 | vms_create(&vcp->segid, V_CLIENT, (dev_t) vcp->v.v_gnode, tlen, 0, 0)) { | |
450 | ReleaseWriteLock(&vcp->lock); | |
451 | return (EOPNOTSUPP); | |
452 | } | |
453 | #ifdef AFS_64BIT_KERNEL | |
454 | vcp->vmh = vm_handle(vcp->segid, (int32long64_t) 0); | |
455 | #else | |
456 | vcp->vmh = SRVAL(vcp->segid, 0, 0); | |
457 | #endif | |
458 | } | |
459 | vcp->v.v_gnode->gn_seg = vcp->segid; /* XXX Important XXX */ | |
460 | if (flag & SHM_RDONLY) { | |
461 | vp->v_gnode->gn_mrdcnt++; | |
462 | } else { | |
463 | vp->v_gnode->gn_mwrcnt++; | |
464 | } | |
465 | /* | |
466 | * We keep the caller's credentials since an async daemon will handle the | |
467 | * request at some point. We assume that the same credentials will be used. | |
468 | */ | |
469 | if (!vcp->credp || (vcp->credp != cred)) { | |
470 | crhold(cred); | |
471 | if (vcp->credp) { | |
472 | struct ucred *crp = vcp->credp; | |
473 | vcp->credp = NULL; | |
474 | crfree(crp); | |
475 | } | |
476 | vcp->credp = cred; | |
477 | } | |
478 | ReleaseWriteLock(&vcp->lock); | |
479 | VN_HOLD(vp); | |
480 | afs_Trace4(afs_iclSetp, CM_TRACE_GMAP, ICL_TYPE_POINTER, vp, | |
481 | ICL_TYPE_LONG, addr, ICL_TYPE_LONG, len, ICL_TYPE_LONG, off); | |
482 | return (0); | |
483 | } | |
484 | ||
485 | ||
486 | int | |
487 | afs_gn_unmap(struct vnode *vp, | |
488 | int32long64_t flag, | |
489 | struct ucred *cred) | |
490 | { | |
491 | struct vcache *vcp = VTOAFS(vp); | |
492 | AFS_STATCNT(afs_gn_unmap); | |
493 | ObtainWriteLock(&vcp->lock, 402); | |
494 | if (flag & SHM_RDONLY) { | |
495 | vp->v_gnode->gn_mrdcnt--; | |
496 | if (vp->v_gnode->gn_mrdcnt <= 0) | |
497 | vp->v_gnode->gn_mrdcnt = 0; | |
498 | } else { | |
499 | vp->v_gnode->gn_mwrcnt--; | |
500 | if (vp->v_gnode->gn_mwrcnt <= 0) | |
501 | vp->v_gnode->gn_mwrcnt = 0; | |
502 | } | |
503 | ReleaseWriteLock(&vcp->lock); | |
504 | ||
505 | AFS_RELE(vp); | |
506 | return 0; | |
507 | } | |
508 | ||
509 | ||
510 | int | |
511 | afs_gn_access(struct vnode *vp, | |
512 | int32long64_t Mode, | |
513 | int32long64_t Who, | |
514 | struct ucred *cred) | |
515 | { | |
516 | int error; | |
517 | struct vattr vattr; | |
518 | int mode = Mode; | |
519 | int who = Who; | |
520 | ||
521 | AFS_STATCNT(afs_gn_access); | |
522 | if (mode & ~0x7) { | |
523 | error = EINVAL; | |
524 | goto out; | |
525 | } | |
526 | ||
527 | error = afs_access(VTOAFS(vp), mode, cred); | |
528 | if (!error) { | |
529 | /* Additional testing */ | |
530 | if (who == ACC_OTHERS || who == ACC_ANY) { | |
531 | error = afs_getattr(VTOAFS(vp), &vattr, cred); | |
532 | if (!error) { | |
533 | if (who == ACC_ANY) { | |
534 | if (((vattr.va_mode >> 6) & mode) == mode) { | |
535 | error = 0; | |
536 | goto out; | |
537 | } | |
538 | } | |
539 | if (((vattr.va_mode >> 3) & mode) == mode) | |
540 | error = 0; | |
541 | else | |
542 | error = EACCES; | |
543 | } | |
544 | } else if (who == ACC_ALL) { | |
545 | error = afs_getattr(VTOAFS(vp), &vattr, cred); | |
546 | if (!error) { | |
547 | if ((!((vattr.va_mode >> 6) & mode)) | |
548 | || (!((vattr.va_mode >> 3) & mode)) | |
549 | || (!(vattr.va_mode & mode))) | |
550 | error = EACCES; | |
551 | else | |
552 | error = 0; | |
553 | } | |
554 | } | |
555 | ||
556 | } | |
557 | out: | |
558 | afs_Trace3(afs_iclSetp, CM_TRACE_GACCESS, ICL_TYPE_POINTER, vp, | |
559 | ICL_TYPE_LONG, mode, ICL_TYPE_LONG, error); | |
560 | return (error); | |
561 | } | |
562 | ||
563 | ||
564 | int | |
565 | afs_gn_getattr(struct vnode *vp, | |
566 | struct vattr *vattrp, | |
567 | struct ucred *cred) | |
568 | { | |
569 | int error; | |
570 | ||
571 | AFS_STATCNT(afs_gn_getattr); | |
572 | error = afs_getattr(VTOAFS(vp), vattrp, cred); | |
573 | afs_Trace2(afs_iclSetp, CM_TRACE_GGETATTR, ICL_TYPE_POINTER, vp, | |
574 | ICL_TYPE_LONG, error); | |
575 | return (error); | |
576 | } | |
577 | ||
578 | ||
579 | int | |
580 | afs_gn_setattr(struct vnode *vp, | |
581 | int32long64_t op, | |
582 | int32long64_t arg1, | |
583 | int32long64_t arg2, | |
584 | int32long64_t arg3, | |
585 | struct ucred *cred) | |
586 | { | |
587 | struct vattr va; | |
588 | int error = 0; | |
589 | ||
590 | AFS_STATCNT(afs_gn_setattr); | |
591 | VATTR_NULL(&va); | |
592 | switch (op) { | |
593 | /* change mode */ | |
594 | case V_MODE: | |
595 | va.va_mode = arg1; | |
596 | break; | |
597 | case V_OWN: | |
598 | if ((arg1 & T_OWNER_AS_IS) == 0) | |
599 | va.va_uid = arg2; | |
600 | if ((arg1 & T_GROUP_AS_IS) == 0) | |
601 | va.va_gid = arg3; | |
602 | break; | |
603 | case V_UTIME: | |
604 | #ifdef notdef | |
605 | error = afs_access(vp, VWRITE, cred); | |
606 | if (error) | |
607 | goto out; | |
608 | #endif | |
609 | if (arg1 & T_SETTIME) { | |
610 | va.va_atime.tv_sec = time; | |
611 | va.va_mtime.tv_sec = time; | |
612 | } else { | |
613 | va.va_atime = *(struct timestruc_t *)arg2; | |
614 | va.va_mtime = *(struct timestruc_t *)arg3; | |
615 | } | |
616 | break; | |
617 | default: | |
618 | error = EINVAL; | |
619 | goto out; | |
620 | } | |
621 | ||
622 | error = afs_setattr(VTOAFS(vp), &va, cred); | |
623 | out: | |
624 | afs_Trace2(afs_iclSetp, CM_TRACE_GSETATTR, ICL_TYPE_POINTER, vp, | |
625 | ICL_TYPE_LONG, error); | |
626 | return (error); | |
627 | } | |
628 | ||
629 | ||
630 | char zero_buffer[PAGESIZE]; | |
631 | int | |
632 | afs_gn_fclear(struct vnode *vp, | |
633 | int32long64_t flags, | |
634 | offset_t offset, | |
635 | offset_t length, | |
636 | caddr_t vinfo, | |
637 | struct ucred *cred) | |
638 | { | |
639 | int i, len, error = 0; | |
640 | struct iovec iov; | |
641 | struct uio uio; | |
642 | static int fclear_init = 0; | |
643 | struct vcache *avc = VTOAFS(vp); | |
644 | ||
645 | memset(&uio, 0, sizeof(uio)); | |
646 | memset(&iov, 0, sizeof(iov)); | |
647 | ||
648 | AFS_STATCNT(afs_gn_fclear); | |
649 | if (!fclear_init) { | |
650 | memset(zero_buffer, 0, PAGESIZE); | |
651 | fclear_init = 1; | |
652 | } | |
653 | /* | |
654 | * Don't clear past ulimit | |
655 | */ | |
656 | if (offset + length > get_ulimit()) | |
657 | return (EFBIG); | |
658 | ||
659 | /* Flush all pages first */ | |
660 | if (avc->segid) { | |
661 | AFS_GUNLOCK(); | |
662 | vm_flushp(avc->segid, 0, MAXFSIZE / PAGESIZE - 1); | |
663 | vms_iowait(avc->segid); | |
664 | AFS_GLOCK(); | |
665 | } | |
666 | uio.afsio_offset = offset; | |
667 | for (i = offset; i < offset + length; i = uio.afsio_offset) { | |
668 | len = offset + length - i; | |
669 | iov.iov_len = (len > PAGESIZE) ? PAGESIZE : len; | |
670 | iov.iov_base = zero_buffer; | |
671 | uio.afsio_iov = &iov; | |
672 | uio.afsio_iovcnt = 1; | |
673 | uio.afsio_seg = AFS_UIOSYS; | |
674 | uio.afsio_resid = iov.iov_len; | |
675 | if (error = afs_rdwr(VTOAFS(vp), &uio, UIO_WRITE, 0, cred)) | |
676 | break; | |
677 | } | |
678 | afs_Trace4(afs_iclSetp, CM_TRACE_GFCLEAR, ICL_TYPE_POINTER, vp, | |
679 | ICL_TYPE_LONG, offset, ICL_TYPE_LONG, length, ICL_TYPE_LONG, | |
680 | error); | |
681 | return (error); | |
682 | } | |
683 | ||
684 | ||
685 | int | |
686 | afs_gn_fsync(struct vnode *vp, | |
687 | int32long64_t flags, /* Not used by AFS */ | |
688 | int32long64_t vinfo, /* Not used by AFS */ | |
689 | struct ucred *cred) | |
690 | { | |
691 | int error; | |
692 | ||
693 | AFS_STATCNT(afs_gn_fsync); | |
694 | error = afs_fsync(vp, cred); | |
695 | afs_Trace3(afs_iclSetp, CM_TRACE_GFSYNC, ICL_TYPE_POINTER, vp, | |
696 | ICL_TYPE_LONG, flags, ICL_TYPE_LONG, error); | |
697 | return (error); | |
698 | } | |
699 | ||
700 | ||
701 | int | |
702 | afs_gn_ftrunc(struct vnode *vp, | |
703 | int32long64_t flags, | |
704 | offset_t length, | |
705 | caddr_t vinfo, | |
706 | struct ucred *cred) | |
707 | { | |
708 | struct vattr va; | |
709 | int error; | |
710 | ||
711 | AFS_STATCNT(afs_gn_ftrunc); | |
712 | VATTR_NULL(&va); | |
713 | va.va_size = length; | |
714 | error = afs_setattr(VTOAFS(vp), &va, cred); | |
715 | afs_Trace4(afs_iclSetp, CM_TRACE_GFTRUNC, ICL_TYPE_POINTER, vp, | |
716 | ICL_TYPE_LONG, flags, ICL_TYPE_OFFSET, | |
717 | ICL_HANDLE_OFFSET(length), ICL_TYPE_LONG, error); | |
718 | return (error); | |
719 | } | |
720 | ||
721 | /* Min size of a file which is dumping core before we declare it a page hog. */ | |
722 | #define MIN_PAGE_HOG_SIZE 8388608 | |
723 | ||
724 | int | |
725 | afs_gn_rdwr(struct vnode *vp, | |
726 | enum uio_rw op, | |
727 | int32long64_t Flags, | |
728 | struct uio *ubuf, | |
729 | ext_t ext, /* Ignored in AFS */ | |
730 | caddr_t vinfo, /* Ignored in AFS */ | |
731 | struct vattr *vattrp, | |
732 | struct ucred *cred) | |
733 | { | |
734 | struct vcache *vcp = VTOAFS(vp); | |
735 | struct vrequest treq; | |
736 | int error = 0; | |
737 | int free_cred = 0; | |
738 | int flags = Flags; | |
739 | ||
740 | AFS_STATCNT(afs_gn_rdwr); | |
741 | ||
742 | if (vcp->vc_error) { | |
743 | if (op == UIO_WRITE) { | |
744 | afs_Trace2(afs_iclSetp, CM_TRACE_GRDWR1, ICL_TYPE_POINTER, vp, | |
745 | ICL_TYPE_LONG, vcp->vc_error); | |
746 | return vcp->vc_error; | |
747 | } else | |
748 | return EIO; | |
749 | } | |
750 | ||
751 | ObtainSharedLock(&vcp->lock, 507); | |
752 | /* | |
753 | * We keep the caller's credentials since an async daemon will handle the | |
754 | * request at some point. We assume that the same credentials will be used. | |
755 | * If this is being called from an NFS server thread, then dupe the | |
756 | * cred and only use that copy in calls and for the stach. | |
757 | */ | |
758 | if (!vcp->credp || (vcp->credp != cred)) { | |
759 | #ifdef AFS_AIX_IAUTH_ENV | |
760 | if (AFS_NFSXLATORREQ(cred)) { | |
761 | /* Must be able to use cred later, so dupe it so that nfs server | |
762 | * doesn't overwrite it's contents. | |
763 | */ | |
764 | cred = crdup(cred); | |
765 | free_cred = 1; | |
766 | } | |
767 | #endif | |
768 | crhold(cred); /* Bump refcount for reference in vcache */ | |
769 | ||
770 | if (vcp->credp) { | |
771 | struct ucred *crp; | |
772 | UpgradeSToWLock(&vcp->lock, 508); | |
773 | crp = vcp->credp; | |
774 | vcp->credp = NULL; | |
775 | ConvertWToSLock(&vcp->lock); | |
776 | crfree(crp); | |
777 | } | |
778 | vcp->credp = cred; | |
779 | } | |
780 | ReleaseSharedLock(&vcp->lock); | |
781 | ||
782 | /* | |
783 | * XXX Is the following really required?? XXX | |
784 | */ | |
785 | if (error = afs_InitReq(&treq, cred)) | |
786 | return error; | |
787 | if (error = afs_VerifyVCache(vcp, &treq)) | |
788 | return afs_CheckCode(error, &treq, 50); | |
789 | osi_FlushPages(vcp, cred); /* Flush old pages */ | |
790 | ||
791 | if (AFS_NFSXLATORREQ(cred)) { | |
792 | if (flags & FSYNC) | |
793 | flags &= ~FSYNC; | |
794 | if (op == UIO_READ) { | |
795 | if (!afs_AccessOK | |
796 | (vcp, PRSFS_READ, &treq, | |
797 | CHECK_MODE_BITS | CMB_ALLOW_EXEC_AS_READ)) { | |
798 | if (free_cred) | |
799 | crfree(cred); | |
800 | return EACCES; | |
801 | } | |
802 | } | |
803 | } | |
804 | ||
805 | /* | |
806 | * We have to bump the open/exwriters field here courtesy of the nfs xlator | |
807 | * because there're no open/close nfs rpcs to call our afs_open/close. | |
808 | * We do a similar thing on the afs_read/write interface. | |
809 | */ | |
810 | if (op == UIO_WRITE) { | |
811 | #ifdef AFS_64BIT_CLIENT | |
812 | if (ubuf->afsio_offset < afs_vmMappingEnd) { | |
813 | #endif /* AFS_64BIT_CLIENT */ | |
814 | ObtainWriteLock(&vcp->lock, 240); | |
815 | vcp->f.states |= CDirty; /* Set the dirty bit */ | |
816 | afs_FakeOpen(vcp); | |
817 | ReleaseWriteLock(&vcp->lock); | |
818 | #ifdef AFS_64BIT_CLIENT | |
819 | } | |
820 | #endif /* AFS_64BIT_CLIENT */ | |
821 | } | |
822 | ||
823 | error = afs_vm_rdwr(vp, ubuf, op, flags, cred); | |
824 | ||
825 | if (op == UIO_WRITE) { | |
826 | #ifdef AFS_64BIT_CLIENT | |
827 | if (ubuf->afsio_offset < afs_vmMappingEnd) { | |
828 | #endif /* AFS_64BIT_CLIENT */ | |
829 | ObtainWriteLock(&vcp->lock, 241); | |
830 | afs_FakeClose(vcp, cred); /* XXXX For nfs trans and cores XXXX */ | |
831 | ReleaseWriteLock(&vcp->lock); | |
832 | #ifdef AFS_64BIT_CLIENT | |
833 | } | |
834 | #endif /* AFS_64BIT_CLIENT */ | |
835 | } | |
836 | if (vattrp != NULL && error == 0) | |
837 | afs_gn_getattr(vp, vattrp, cred); | |
838 | ||
839 | afs_Trace4(afs_iclSetp, CM_TRACE_GRDWR, ICL_TYPE_POINTER, vp, | |
840 | ICL_TYPE_LONG, flags, ICL_TYPE_LONG, op, ICL_TYPE_LONG, error); | |
841 | ||
842 | if (free_cred) | |
843 | crfree(cred); | |
844 | return (error); | |
845 | } | |
846 | ||
847 | #define AFS_MAX_VM_CHUNKS 10 | |
848 | static int | |
849 | afs_vm_rdwr(struct vnode *vp, | |
850 | struct uio *uiop, | |
851 | enum uio_rw rw, | |
852 | int ioflag, | |
853 | struct ucred *credp) | |
854 | { | |
855 | afs_int32 code = 0; | |
856 | int i; | |
857 | afs_int32 blockSize; | |
858 | afs_size_t fileSize, xfrOffset, offset, old_offset, xfrSize; | |
859 | vmsize_t txfrSize; | |
860 | #ifdef AFS_64BIT_CLIENT | |
861 | afs_size_t finalOffset; | |
862 | off_t toffset; | |
863 | int mixed = 0; | |
864 | afs_size_t add2resid = 0; | |
865 | #endif /* AFS_64BIT_CLIENT */ | |
866 | struct vcache *vcp = VTOAFS(vp); | |
867 | struct dcache *tdc; | |
868 | afs_size_t start_offset; | |
869 | afs_int32 save_resid = uiop->afsio_resid; | |
870 | int first_page, last_page, pages; | |
871 | int count, len; | |
872 | int counter = 0; | |
873 | struct vrequest treq; | |
874 | ||
875 | if (code = afs_InitReq(&treq, credp)) | |
876 | return code; | |
877 | ||
878 | /* special case easy transfer; apparently a lot are done */ | |
879 | if ((xfrSize = uiop->afsio_resid) == 0) | |
880 | return 0; | |
881 | ||
882 | ObtainReadLock(&vcp->lock); | |
883 | fileSize = vcp->f.m.Length; | |
884 | if (rw == UIO_WRITE && (ioflag & IO_APPEND)) { /* handle IO_APPEND mode */ | |
885 | uiop->afsio_offset = fileSize; | |
886 | } | |
887 | /* compute xfrOffset now, and do some checks */ | |
888 | xfrOffset = uiop->afsio_offset; | |
889 | if (xfrOffset < 0 || xfrOffset + xfrSize < 0) { | |
890 | code = EINVAL; | |
891 | ReleaseReadLock(&vcp->lock); | |
892 | goto fail; | |
893 | } | |
894 | #ifndef AFS_64BIT_CLIENT | |
895 | /* check for "file too big" error, which should really be done above us */ | |
896 | if (rw == UIO_WRITE && xfrSize + fileSize > get_ulimit()) { | |
897 | code = EFBIG; | |
898 | ReleaseReadLock(&vcp->lock); | |
899 | goto fail; | |
900 | } | |
901 | #endif /* AFS_64BIT_CLIENT */ | |
902 | ||
903 | #ifdef AFS_64BIT_CLIENT | |
904 | if (xfrOffset + xfrSize > afs_vmMappingEnd) { | |
905 | if (rw == UIO_READ) { | |
906 | /* don't read past EOF */ | |
907 | if (xfrSize+xfrOffset > fileSize) { | |
908 | add2resid = xfrSize + xfrOffset - fileSize; | |
909 | xfrSize = fileSize - xfrOffset; | |
910 | if (xfrSize <= 0) { | |
911 | ReleaseReadLock(&vcp->lock); | |
912 | goto fail; | |
913 | } | |
914 | txfrSize = xfrSize; | |
915 | afsio_trim(uiop, txfrSize); | |
916 | } | |
917 | } | |
918 | if (xfrOffset < afs_vmMappingEnd) { | |
919 | /* special case of a buffer crossing the VM mapping line */ | |
920 | struct uio tuio; | |
921 | struct iovec tvec[16]; /* Should have access to #define */ | |
922 | afs_int32 tsize; | |
923 | ||
924 | memset(&tuio, 0, sizeof(tuio)); | |
925 | memset(&tvec, 0, sizeof(tvec)); | |
926 | ||
927 | mixed = 1; | |
928 | finalOffset = xfrOffset + xfrSize; | |
929 | tsize = (afs_size_t) (xfrOffset + xfrSize - afs_vmMappingEnd); | |
930 | txfrSize = xfrSize; | |
931 | afsio_copy(uiop, &tuio, tvec); | |
932 | afsio_skip(&tuio, txfrSize - tsize); | |
933 | afsio_trim(&tuio, tsize); | |
934 | tuio.afsio_offset = afs_vmMappingEnd; | |
935 | ReleaseReadLock(&vcp->lock); | |
936 | ObtainWriteLock(&vcp->lock, 243); | |
937 | afs_FakeClose(vcp, credp); /* XXXX For nfs trans and cores XXXX */ | |
938 | ReleaseWriteLock(&vcp->lock); | |
939 | code = afs_direct_rdwr(vp, &tuio, rw, ioflag, credp); | |
940 | ObtainWriteLock(&vcp->lock, 244); | |
941 | afs_FakeOpen(vcp); /* XXXX For nfs trans and cores XXXX */ | |
942 | ReleaseWriteLock(&vcp->lock); | |
943 | if (code) | |
944 | goto fail; | |
945 | ObtainReadLock(&vcp->lock); | |
946 | xfrSize = afs_vmMappingEnd - xfrOffset; | |
947 | txfrSize = xfrSize; | |
948 | afsio_trim(uiop, txfrSize); | |
949 | } else { | |
950 | ReleaseReadLock(&vcp->lock); | |
951 | code = afs_direct_rdwr(vp, uiop, rw, ioflag, credp); | |
952 | uiop->uio_resid += add2resid; | |
953 | return code; | |
954 | } | |
955 | } | |
956 | #endif /* AFS_64BIT_CLIENT */ | |
957 | ||
958 | if (!vcp->segid) { | |
959 | afs_uint32 tlen = vcp->f.m.Length; | |
960 | #ifdef AFS_64BIT_CLIENT | |
961 | if (vcp->f.m.Length > afs_vmMappingEnd) | |
962 | tlen = afs_vmMappingEnd; | |
963 | #endif | |
964 | /* Consider V_INTRSEG too for interrupts */ | |
965 | if (code = | |
966 | vms_create(&vcp->segid, V_CLIENT, (dev_t) vcp->v.v_gnode, tlen, 0, 0)) { | |
967 | ReleaseReadLock(&vcp->lock); | |
968 | goto fail; | |
969 | } | |
970 | #ifdef AFS_64BIT_KERNEL | |
971 | vcp->vmh = vm_handle(vcp->segid, (int32long64_t) 0); | |
972 | #else | |
973 | vcp->vmh = SRVAL(vcp->segid, 0, 0); | |
974 | #endif | |
975 | } | |
976 | vcp->v.v_gnode->gn_seg = vcp->segid; | |
977 | if (rw == UIO_READ) { | |
978 | ReleaseReadLock(&vcp->lock); | |
979 | /* don't read past EOF */ | |
980 | if (xfrSize + xfrOffset > fileSize) | |
981 | xfrSize = fileSize - xfrOffset; | |
982 | if (xfrSize <= 0) | |
983 | goto fail; | |
984 | #ifdef AFS_64BIT_CLIENT | |
985 | toffset = xfrOffset; | |
986 | uiop->afsio_offset = xfrOffset; | |
987 | afs_Trace3(afs_iclSetp, CM_TRACE_VMWRITE, ICL_TYPE_POINTER, vcp, | |
988 | ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(xfrOffset), | |
989 | ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(xfrSize)); | |
990 | AFS_GUNLOCK(); | |
991 | txfrSize = xfrSize; | |
992 | code = vm_move(vcp->segid, toffset, txfrSize, rw, uiop); | |
993 | #else /* AFS_64BIT_CLIENT */ | |
994 | AFS_GUNLOCK(); | |
995 | code = vm_move(vcp->segid, xfrOffset, xfrSize, rw, uiop); | |
996 | #endif /* AFS_64BIT_CLIENT */ | |
997 | AFS_GLOCK(); | |
998 | /* | |
999 | * If at a chunk boundary and staying within chunk, | |
1000 | * start prefetch of next chunk. | |
1001 | */ | |
1002 | if (counter == 0 || AFS_CHUNKOFFSET(xfrOffset) == 0 | |
1003 | && xfrSize <= AFS_CHUNKSIZE(xfrOffset)) { | |
1004 | ObtainWriteLock(&vcp->lock, 407); | |
1005 | tdc = afs_FindDCache(vcp, xfrOffset); | |
1006 | if (tdc) { | |
1007 | if (!(tdc->mflags & DFNextStarted)) | |
1008 | afs_PrefetchChunk(vcp, tdc, credp, &treq); | |
1009 | afs_PutDCache(tdc); | |
1010 | } | |
1011 | ReleaseWriteLock(&vcp->lock); | |
1012 | } | |
1013 | #ifdef AFS_64BIT_CLIENT | |
1014 | if (mixed) { | |
1015 | uiop->afsio_offset = finalOffset; | |
1016 | } | |
1017 | uiop->uio_resid += add2resid; | |
1018 | #endif /* AFS_64BIT_CLIENT */ | |
1019 | return code; | |
1020 | } | |
1021 | ||
1022 | /* UIO_WRITE */ | |
1023 | start_offset = uiop->afsio_offset; | |
1024 | afs_Trace3(afs_iclSetp, CM_TRACE_VMWRITE, ICL_TYPE_POINTER, vcp, | |
1025 | ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(start_offset), | |
1026 | ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(xfrSize)); | |
1027 | ReleaseReadLock(&vcp->lock); | |
1028 | ObtainWriteLock(&vcp->lock, 400); | |
1029 | vcp->f.m.Date = osi_Time(); /* Set file date (for ranlib) */ | |
1030 | /* extend file */ | |
1031 | /* un-protect last page. */ | |
1032 | last_page = vcp->f.m.Length / PAGESIZE; | |
1033 | #ifdef AFS_64BIT_CLIENT | |
1034 | if (vcp->f.m.Length > afs_vmMappingEnd) | |
1035 | last_page = afs_vmMappingEnd / PAGESIZE; | |
1036 | #endif | |
1037 | vm_protectp(vcp->segid, last_page, 1, FILEKEY); | |
1038 | if (xfrSize + xfrOffset > fileSize) { | |
1039 | vcp->f.m.Length = xfrSize + xfrOffset; | |
1040 | } | |
1041 | if ((!(vcp->f.states & CPageHog)) && (xfrSize >= MIN_PAGE_HOG_SIZE)) { | |
1042 | vmPageHog++; | |
1043 | vcp->f.states |= CPageHog; | |
1044 | } | |
1045 | ReleaseWriteLock(&vcp->lock); | |
1046 | ||
1047 | /* If the write will fit into a single chunk we'll write all of it | |
1048 | * at once. Otherwise, we'll write one chunk at a time, flushing | |
1049 | * some of it to disk. | |
1050 | */ | |
1051 | count = 0; | |
1052 | ||
1053 | /* Only create a page to avoid excess VM access if we're writing a | |
1054 | * small file which is either new or completely overwrites the | |
1055 | * existing file. | |
1056 | */ | |
1057 | if ((xfrOffset == 0) && (xfrSize < PAGESIZE) && (xfrSize >= fileSize) | |
1058 | && (vcp->v.v_gnode->gn_mwrcnt == 0) | |
1059 | && (vcp->v.v_gnode->gn_mrdcnt == 0)) { | |
1060 | (void)vm_makep(vcp->segid, 0); | |
1061 | } | |
1062 | ||
1063 | while (xfrSize > 0) { | |
1064 | offset = AFS_CHUNKBASE(xfrOffset); | |
1065 | len = xfrSize; | |
1066 | ||
1067 | if (AFS_CHUNKSIZE(xfrOffset) <= len) | |
1068 | len = | |
1069 | (afs_size_t) AFS_CHUNKSIZE(xfrOffset) - (xfrOffset - offset); | |
1070 | ||
1071 | if (len == xfrSize) { | |
1072 | /* All data goes to this one chunk. */ | |
1073 | AFS_GUNLOCK(); | |
1074 | old_offset = uiop->afsio_offset; | |
1075 | #ifdef AFS_64BIT_CLIENT | |
1076 | uiop->afsio_offset = xfrOffset; | |
1077 | toffset = xfrOffset; | |
1078 | txfrSize = xfrSize; | |
1079 | code = vm_move(vcp->segid, toffset, txfrSize, rw, uiop); | |
1080 | #else /* AFS_64BIT_CLIENT */ | |
1081 | code = vm_move(vcp->segid, xfrOffset, xfrSize, rw, uiop); | |
1082 | #endif /* AFS_64BIT_CLIENT */ | |
1083 | AFS_GLOCK(); | |
1084 | if (code) { | |
1085 | goto fail; | |
1086 | } | |
1087 | xfrOffset += len; | |
1088 | xfrSize = 0; | |
1089 | } else { | |
1090 | /* Write just one chunk's worth of data. */ | |
1091 | struct uio tuio; | |
1092 | struct iovec tvec[16]; /* Should have access to #define */ | |
1093 | ||
1094 | memset(&tuio, 0, sizeof(tuio)); | |
1095 | memset(&tvec, 0, sizeof(tvec)); | |
1096 | ||
1097 | /* Purge dirty chunks of file if there are too many dirty chunks. | |
1098 | * Inside the write loop, we only do this at a chunk boundary. | |
1099 | * Clean up partial chunk if necessary at end of loop. | |
1100 | */ | |
1101 | if (counter > 0 && code == 0 && xfrOffset == offset) { | |
1102 | ObtainWriteLock(&vcp->lock, 403); | |
1103 | if (xfrOffset > vcp->f.m.Length) | |
1104 | vcp->f.m.Length = xfrOffset; | |
1105 | code = afs_DoPartialWrite(vcp, &treq); | |
1106 | vcp->f.states |= CDirty; | |
1107 | ReleaseWriteLock(&vcp->lock); | |
1108 | if (code) { | |
1109 | goto fail; | |
1110 | } | |
1111 | } | |
1112 | counter++; | |
1113 | ||
1114 | afsio_copy(uiop, &tuio, tvec); | |
1115 | afsio_trim(&tuio, len); | |
1116 | tuio.afsio_offset = xfrOffset; | |
1117 | ||
1118 | AFS_GUNLOCK(); | |
1119 | old_offset = uiop->afsio_offset; | |
1120 | #ifdef AFS_64BIT_CLIENT | |
1121 | toffset = xfrOffset; | |
1122 | code = vm_move(vcp->segid, toffset, len, rw, &tuio); | |
1123 | #else /* AFS_64BIT_CLIENT */ | |
1124 | code = vm_move(vcp->segid, xfrOffset, len, rw, &tuio); | |
1125 | #endif /* AFS_64BIT_CLIENT */ | |
1126 | AFS_GLOCK(); | |
1127 | len -= tuio.afsio_resid; | |
1128 | if (code || (len <= 0)) { | |
1129 | code = code ? code : EINVAL; | |
1130 | goto fail; | |
1131 | } | |
1132 | afsio_skip(uiop, len); | |
1133 | xfrSize -= len; | |
1134 | xfrOffset += len; | |
1135 | } | |
1136 | ||
1137 | first_page = (afs_size_t) old_offset >> PGSHIFT; | |
1138 | pages = | |
1139 | 1 + (((afs_size_t) old_offset + (len - 1)) >> PGSHIFT) - | |
1140 | first_page; | |
1141 | afs_Trace3(afs_iclSetp, CM_TRACE_VMWRITE2, ICL_TYPE_POINTER, vcp, | |
1142 | ICL_TYPE_INT32, first_page, ICL_TYPE_INT32, pages); | |
1143 | AFS_GUNLOCK(); | |
1144 | code = vm_writep(vcp->segid, first_page, pages); | |
1145 | if (code) { | |
1146 | AFS_GLOCK(); | |
1147 | goto fail; | |
1148 | } | |
1149 | if (++count > AFS_MAX_VM_CHUNKS) { | |
1150 | count = 0; | |
1151 | code = vms_iowait(vcp->segid); | |
1152 | if (code) { | |
1153 | /* cache device failure? */ | |
1154 | AFS_GLOCK(); | |
1155 | goto fail; | |
1156 | } | |
1157 | } | |
1158 | AFS_GLOCK(); | |
1159 | ||
1160 | } | |
1161 | ||
1162 | if (count) { | |
1163 | AFS_GUNLOCK(); | |
1164 | code = vms_iowait(vcp->segid); | |
1165 | AFS_GLOCK(); | |
1166 | if (code) { | |
1167 | /* cache device failure? */ | |
1168 | goto fail; | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | ObtainWriteLock(&vcp->lock, 242); | |
1173 | if (code == 0 && (vcp->f.states & CDirty)) { | |
1174 | code = afs_DoPartialWrite(vcp, &treq); | |
1175 | } | |
1176 | vm_protectp(vcp->segid, last_page, 1, RDONLY); | |
1177 | ReleaseWriteLock(&vcp->lock); | |
1178 | ||
1179 | /* If requested, fsync the file after every write */ | |
1180 | if (ioflag & FSYNC) | |
1181 | afs_fsync(vp, credp); | |
1182 | ||
1183 | ObtainReadLock(&vcp->lock); | |
1184 | if (vcp->vc_error) { | |
1185 | /* Pretend we didn't write anything. We need to get the error back to | |
1186 | * the user. If we don't it's possible for a quota error for this | |
1187 | * write to succeed and the file to be closed without the user ever | |
1188 | * having seen the store error. And AIX syscall clears the error if | |
1189 | * anything was written. | |
1190 | */ | |
1191 | code = vcp->vc_error; | |
1192 | if (code == EDQUOT || code == ENOSPC) | |
1193 | uiop->afsio_resid = save_resid; | |
1194 | } | |
1195 | #ifdef AFS_64BIT_CLIENT | |
1196 | if (mixed) { | |
1197 | uiop->afsio_offset = finalOffset; | |
1198 | } | |
1199 | #endif /* AFS_64BIT_CLIENT */ | |
1200 | ReleaseReadLock(&vcp->lock); | |
1201 | ||
1202 | fail: | |
1203 | afs_Trace2(afs_iclSetp, CM_TRACE_VMWRITE3, ICL_TYPE_POINTER, vcp, | |
1204 | ICL_TYPE_INT32, code); | |
1205 | return code; | |
1206 | } | |
1207 | ||
1208 | ||
1209 | static int | |
1210 | afs_direct_rdwr(struct vnode *vp, | |
1211 | struct uio *uiop, | |
1212 | enum uio_rw rw, | |
1213 | int ioflag, | |
1214 | struct ucred *credp) | |
1215 | { | |
1216 | afs_int32 code = 0; | |
1217 | afs_size_t fileSize, xfrOffset, offset, old_offset, xfrSize; | |
1218 | struct vcache *vcp = VTOAFS(vp); | |
1219 | afs_int32 save_resid = uiop->afsio_resid; | |
1220 | struct vrequest treq; | |
1221 | ||
1222 | if (code = afs_InitReq(&treq, credp)) | |
1223 | return code; | |
1224 | ||
1225 | /* special case easy transfer; apparently a lot are done */ | |
1226 | if ((xfrSize = uiop->afsio_resid) == 0) | |
1227 | return 0; | |
1228 | ||
1229 | ObtainReadLock(&vcp->lock); | |
1230 | fileSize = vcp->f.m.Length; | |
1231 | if (rw == UIO_WRITE && (ioflag & IO_APPEND)) { /* handle IO_APPEND mode */ | |
1232 | uiop->afsio_offset = fileSize; | |
1233 | } | |
1234 | /* compute xfrOffset now, and do some checks */ | |
1235 | xfrOffset = uiop->afsio_offset; | |
1236 | if (xfrOffset < 0 || xfrOffset + xfrSize < 0) { | |
1237 | code = EINVAL; | |
1238 | ReleaseReadLock(&vcp->lock); | |
1239 | goto fail; | |
1240 | } | |
1241 | ||
1242 | /* check for "file too big" error, which should really be done above us */ | |
1243 | #ifdef notdef | |
1244 | if (rw == UIO_WRITE && xfrSize + fileSize > get_ulimit()) { | |
1245 | code = EFBIG; | |
1246 | ReleaseReadLock(&vcp->lock); | |
1247 | goto fail; | |
1248 | } | |
1249 | #endif | |
1250 | ReleaseReadLock(&vcp->lock); | |
1251 | if (rw == UIO_WRITE) { | |
1252 | ObtainWriteLock(&vcp->lock, 400); | |
1253 | vcp->f.m.Date = osi_Time(); /* Set file date (for ranlib) */ | |
1254 | /* extend file */ | |
1255 | if (xfrSize + xfrOffset > fileSize) | |
1256 | vcp->f.m.Length = xfrSize + xfrOffset; | |
1257 | ReleaseWriteLock(&vcp->lock); | |
1258 | } | |
1259 | afs_Trace3(afs_iclSetp, CM_TRACE_DIRECTRDWR, ICL_TYPE_POINTER, vp, | |
1260 | ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(uiop->afsio_offset), | |
1261 | ICL_TYPE_LONG, uiop->afsio_resid); | |
1262 | code = afs_rdwr(VTOAFS(vp), uiop, rw, ioflag, credp); | |
1263 | if (code != 0) { | |
1264 | uiop->afsio_resid = save_resid; | |
1265 | } else { | |
1266 | uiop->afsio_offset = xfrOffset + xfrSize; | |
1267 | if (uiop->afsio_resid > 0) { | |
1268 | /* should zero here the remaining buffer */ | |
1269 | uiop->afsio_resid = 0; | |
1270 | } | |
1271 | /* Purge dirty chunks of file if there are too many dirty chunks. | |
1272 | * Inside the write loop, we only do this at a chunk boundary. | |
1273 | * Clean up partial chunk if necessary at end of loop. | |
1274 | */ | |
1275 | if (AFS_CHUNKBASE(uiop->afsio_offset) != AFS_CHUNKBASE(xfrOffset)) { | |
1276 | ObtainWriteLock(&vcp->lock, 402); | |
1277 | code = afs_DoPartialWrite(vcp, &treq); | |
1278 | vcp->f.states |= CDirty; | |
1279 | ReleaseWriteLock(&vcp->lock); | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | fail: | |
1284 | return code; | |
1285 | } | |
1286 | ||
1287 | ||
1288 | static int | |
1289 | lock_normalize(struct vnode *vp, | |
1290 | struct flock *lckdat, | |
1291 | offset_t offset, | |
1292 | struct ucred *cred) | |
1293 | { | |
1294 | struct vattr vattr; | |
1295 | int code; | |
1296 | ||
1297 | switch (lckdat->l_whence) { | |
1298 | case 0: | |
1299 | return 0; | |
1300 | case 1: | |
1301 | lckdat->l_start += (off_t) offset; | |
1302 | break; | |
1303 | case 2: | |
1304 | code = afs_getattr(VTOAFS(vp), &vattr, cred); | |
1305 | if (code != 0) | |
1306 | return code; | |
1307 | lckdat->l_start += (off_t) vattr.va_size; | |
1308 | break; | |
1309 | default: | |
1310 | return EINVAL; | |
1311 | } | |
1312 | lckdat->l_whence = 0; | |
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | ||
1317 | ||
1318 | int | |
1319 | afs_gn_lockctl(struct vnode *vp, | |
1320 | offset_t offset, | |
1321 | struct eflock *lckdat, | |
1322 | int32long64_t cmd, | |
1323 | int (*ignored_fcn) (), | |
1324 | #ifdef AFS_AIX52_ENV /* Changed in AIX 5.2 and up */ | |
1325 | ulong * ignored_id, | |
1326 | #else /* AFS_AIX52_ENV */ | |
1327 | ulong32int64_t * ignored_id, | |
1328 | #endif /* AFS_AIX52_ENV */ | |
1329 | struct ucred *cred) | |
1330 | { | |
1331 | int error, ncmd = 0; | |
1332 | struct flock flkd; | |
1333 | struct vattr *attrs; | |
1334 | ||
1335 | AFS_STATCNT(afs_gn_lockctl); | |
1336 | /* Convert from AIX's cmd to standard lockctl lock types... */ | |
1337 | if (cmd == 0) | |
1338 | ncmd = F_GETLK; | |
1339 | else if (cmd & SETFLCK) { | |
1340 | ncmd = F_SETLK; | |
1341 | if (cmd & SLPFLCK) | |
1342 | ncmd = F_SETLKW; | |
1343 | } | |
1344 | flkd.l_type = lckdat->l_type; | |
1345 | flkd.l_whence = lckdat->l_whence; | |
1346 | flkd.l_start = lckdat->l_start; | |
1347 | flkd.l_len = lckdat->l_len; | |
1348 | flkd.l_pid = lckdat->l_pid; | |
1349 | flkd.l_sysid = lckdat->l_sysid; | |
1350 | ||
1351 | if (flkd.l_start != lckdat->l_start || flkd.l_len != lckdat->l_len) | |
1352 | return EINVAL; | |
1353 | if (error = lock_normalize(vp, &flkd, offset, cred)) | |
1354 | return (error); | |
1355 | error = afs_lockctl(vp, &flkd, ncmd, cred); | |
1356 | lckdat->l_type = flkd.l_type; | |
1357 | lckdat->l_whence = flkd.l_whence; | |
1358 | lckdat->l_start = flkd.l_start; | |
1359 | lckdat->l_len = flkd.l_len; | |
1360 | lckdat->l_pid = flkd.l_pid; | |
1361 | lckdat->l_sysid = flkd.l_sysid; | |
1362 | afs_Trace3(afs_iclSetp, CM_TRACE_GLOCKCTL, ICL_TYPE_POINTER, vp, | |
1363 | ICL_TYPE_LONG, ncmd, ICL_TYPE_LONG, error); | |
1364 | return (error); | |
1365 | } | |
1366 | ||
1367 | ||
1368 | /* NOTE: In the nfs glue routine (nfs_gn2sun.c) the order was wrong (vp, flags, cmd, arg, ext); was that another typo? */ | |
1369 | int | |
1370 | afs_gn_ioctl(struct vnode *vp, | |
1371 | int32long64_t Cmd, | |
1372 | caddr_t arg, | |
1373 | size_t flags, /* Ignored in AFS */ | |
1374 | ext_t ext, /* Ignored in AFS */ | |
1375 | struct ucred *crp) /* Ignored in AFS */ | |
1376 | { | |
1377 | int error; | |
1378 | int cmd = Cmd; | |
1379 | ||
1380 | AFS_STATCNT(afs_gn_ioctl); | |
1381 | /* This seems to be a perfect fit for our ioctl redirection (afs_xioctl hack); thus the ioctl(2) entry in sysent.c is unaffected in the aix/afs port. */ | |
1382 | error = afs_ioctl(vp, cmd, arg); | |
1383 | afs_Trace3(afs_iclSetp, CM_TRACE_GIOCTL, ICL_TYPE_POINTER, vp, | |
1384 | ICL_TYPE_LONG, cmd, ICL_TYPE_LONG, error); | |
1385 | return (error); | |
1386 | } | |
1387 | ||
1388 | ||
1389 | int | |
1390 | afs_gn_readlink(struct vnode *vp, | |
1391 | struct uio *uiop, | |
1392 | struct ucred *cred) | |
1393 | { | |
1394 | int error; | |
1395 | ||
1396 | AFS_STATCNT(afs_gn_readlink); | |
1397 | error = afs_readlink(vp, uiop, cred); | |
1398 | afs_Trace2(afs_iclSetp, CM_TRACE_GREADLINK, ICL_TYPE_POINTER, vp, | |
1399 | ICL_TYPE_LONG, error); | |
1400 | return (error); | |
1401 | } | |
1402 | ||
1403 | ||
1404 | int | |
1405 | afs_gn_select(struct vnode *vp, | |
1406 | int32long64_t correl, | |
1407 | ushort e, | |
1408 | ushort *re, | |
1409 | void (* notify)(), | |
1410 | caddr_t vinfo, | |
1411 | struct ucred *crp) | |
1412 | { | |
1413 | AFS_STATCNT(afs_gn_select); | |
1414 | /* NO SUPPORT for this in afs YET! */ | |
1415 | return (EOPNOTSUPP); | |
1416 | } | |
1417 | ||
1418 | ||
1419 | int | |
1420 | afs_gn_symlink(struct vnode *vp, | |
1421 | char *link, | |
1422 | char *target, | |
1423 | struct ucred *cred) | |
1424 | { | |
1425 | struct vattr va; | |
1426 | int error; | |
1427 | ||
1428 | AFS_STATCNT(afs_gn_symlink); | |
1429 | VATTR_NULL(&va); | |
1430 | va.va_mode = 0777; | |
1431 | error = afs_symlink(vp, link, &va, target, NULL, cred); | |
1432 | afs_Trace4(afs_iclSetp, CM_TRACE_GSYMLINK, ICL_TYPE_POINTER, vp, | |
1433 | ICL_TYPE_STRING, link, ICL_TYPE_STRING, target, ICL_TYPE_LONG, | |
1434 | error); | |
1435 | return (error); | |
1436 | } | |
1437 | ||
1438 | ||
1439 | int | |
1440 | afs_gn_readdir(struct vnode *vp, | |
1441 | struct uio *uiop, | |
1442 | struct ucred *cred) | |
1443 | { | |
1444 | int error; | |
1445 | ||
1446 | AFS_STATCNT(afs_gn_readdir); | |
1447 | error = afs_readdir(vp, uiop, cred); | |
1448 | afs_Trace2(afs_iclSetp, CM_TRACE_GREADDIR, ICL_TYPE_POINTER, vp, | |
1449 | ICL_TYPE_LONG, error); | |
1450 | return (error); | |
1451 | } | |
1452 | ||
1453 | ||
1454 | extern Simple_lock afs_asyncbuf_lock; | |
1455 | extern struct buf *afs_asyncbuf; | |
1456 | extern int afs_asyncbuf_cv; | |
1457 | ||
1458 | /* | |
1459 | * Buffers are ranked by age. A buffer's age is the value of afs_biotime | |
1460 | * when the buffer is processed by afs_gn_strategy. afs_biotime is | |
1461 | * incremented for each buffer. A buffer's age is kept in its av_back field. | |
1462 | * The age ranking is used by the daemons, which favor older buffers. | |
1463 | */ | |
1464 | afs_int32 afs_biotime = 0; | |
1465 | ||
1466 | /* This function is called with a list of buffers, threaded through | |
1467 | * the av_forw field. Our goal is to copy the list of buffers into the | |
1468 | * afs_asyncbuf list, sorting buffers into sublists linked by the b_work field. | |
1469 | * Within buffers within the same work group, the guy with the lowest address | |
1470 | * has to be located at the head of the queue; his b_bcount field will also | |
1471 | * be increased to cover all of the buffers in the b_work queue. | |
1472 | */ | |
1473 | #define AIX_VM_BLKSIZE 8192 | |
1474 | /* Note: This function seems to be called as ddstrategy entry point, ie | |
1475 | * has one argument. However, it also needs to be present as | |
1476 | * vn_strategy entry point which has three arguments, but it seems to never | |
1477 | * be called in that capacity (it would fail horribly due to the argument | |
1478 | * mismatch). I'm confused, but it obviously has to be this way, maybe | |
1479 | * some IBM people can shed som light on this | |
1480 | */ | |
1481 | int | |
1482 | afs_gn_strategy(struct buf *abp) | |
1483 | { | |
1484 | struct buf **lbp, *tbp; | |
1485 | struct buf **lwbp; | |
1486 | struct buf *nbp, *qbp, *qnbp, *firstComparable; | |
1487 | int doMerge; | |
1488 | int oldPriority; | |
1489 | ||
1490 | #define EFS_COMPARABLE(x,y) ((x)->b_vp == (y)->b_vp \ | |
1491 | && (x)->b_xmemd.subspace_id == (y)->b_xmemd.subspace_id \ | |
1492 | && (x)->b_flags == (y)->b_flags \ | |
1493 | && !((x)->b_flags & B_PFPROT) \ | |
1494 | && !((y)->b_flags & B_PFPROT)) | |
1495 | ||
1496 | oldPriority = disable_lock(INTMAX, &afs_asyncbuf_lock); | |
1497 | for (tbp = abp; tbp; tbp = nbp) { | |
1498 | nbp = tbp->av_forw; /* remember for later */ | |
1499 | tbp->b_work = 0; | |
1500 | tbp->av_back = (struct buf *)afs_biotime++; | |
1501 | ||
1502 | /* first insert the buffer into the afs_async queue. Insert buffer | |
1503 | * sorted within its disk position within a set of comparable buffers. | |
1504 | * Ensure that all comparable buffers are grouped contiguously. | |
1505 | * Later on, we'll merge adjacent buffers into a single request. | |
1506 | */ | |
1507 | firstComparable = NULL; | |
1508 | lbp = &afs_asyncbuf; | |
1509 | for (qbp = *lbp; qbp; lbp = &qbp->av_forw, qbp = *lbp) { | |
1510 | if (EFS_COMPARABLE(tbp, qbp)) { | |
1511 | if (!firstComparable) | |
1512 | firstComparable = qbp; | |
1513 | /* this buffer is comparable, so see if the next buffer | |
1514 | * is farther in the file; if it is insert before next buffer. | |
1515 | */ | |
1516 | if (tbp->b_blkno < qbp->b_blkno) { | |
1517 | break; | |
1518 | } | |
1519 | } else { | |
1520 | /* If we're at the end of a block of comparable buffers, we | |
1521 | * insert the buffer here to keep all comparable buffers | |
1522 | * contiguous. | |
1523 | */ | |
1524 | if (firstComparable) | |
1525 | break; | |
1526 | } | |
1527 | } | |
1528 | /* do the insert before qbp now */ | |
1529 | tbp->av_forw = *lbp; | |
1530 | *lbp = tbp; | |
1531 | if (firstComparable == NULL) { | |
1532 | /* next we're going to do all sorts of buffer merging tricks, but | |
1533 | * here we know we're the only COMPARABLE block in the | |
1534 | * afs_asyncbuf list, so we just skip that and continue with | |
1535 | * the next input buffer. | |
1536 | */ | |
1537 | continue; | |
1538 | } | |
1539 | ||
1540 | /* we may have actually added the "new" firstComparable */ | |
1541 | if (tbp->av_forw == firstComparable) | |
1542 | firstComparable = tbp; | |
1543 | /* | |
1544 | * when we get here, firstComparable points to the first dude in the | |
1545 | * same vnode and subspace that we (tbp) are in. We go through the | |
1546 | * area of this list with COMPARABLE buffers (a contiguous region) and | |
1547 | * repeated merge buffers that are contiguous and in the same block or | |
1548 | * buffers that are contiguous and are both integral numbers of blocks. | |
1549 | * Note that our end goal is to have as big blocks as we can, but we | |
1550 | * must minimize the transfers that are not integral #s of blocks on | |
1551 | * block boundaries, since Episode will do those smaller and/or | |
1552 | * unaligned I/Os synchronously. | |
1553 | * | |
1554 | * A useful example to consider has the async queue with this in it: | |
1555 | * [8K block, 2 pages] [4K block, 1 page] [4K hole] [8K block, 2 pages] | |
1556 | * If we get a request that fills the 4K hole, we want to merge this | |
1557 | * whole mess into a 24K, 6 page transfer. If we don't, however, we | |
1558 | * don't want to do any merging since adding the 4K transfer to the 8K | |
1559 | * transfer makes the 8K transfer synchronous. | |
1560 | * | |
1561 | * Note that if there are any blocks whose size is a multiple of | |
1562 | * the file system block size, then we know that such blocks are also | |
1563 | * on block boundaries. | |
1564 | */ | |
1565 | ||
1566 | doMerge = 1; /* start the loop */ | |
1567 | while (doMerge) { /* loop until an iteration doesn't | |
1568 | * make any more changes */ | |
1569 | doMerge = 0; | |
1570 | for (qbp = firstComparable;; qbp = qnbp) { | |
1571 | qnbp = qbp->av_forw; | |
1572 | if (!qnbp) | |
1573 | break; /* we're done */ | |
1574 | if (!EFS_COMPARABLE(qbp, qnbp)) | |
1575 | break; | |
1576 | ||
1577 | /* try to merge qbp and qnbp */ | |
1578 | ||
1579 | /* first check if both not adjacent go on to next region */ | |
1580 | if ((dbtob(qbp->b_blkno) + qbp->b_bcount) != | |
1581 | dbtob(qnbp->b_blkno)) | |
1582 | continue; | |
1583 | ||
1584 | /* note if both in the same block, the first byte of leftmost guy | |
1585 | * and last byte of rightmost guy are in the same block. | |
1586 | */ | |
1587 | if ((dbtob(qbp->b_blkno) & ~(AIX_VM_BLKSIZE - 1)) == | |
1588 | ((dbtob(qnbp->b_blkno) + qnbp->b_bcount - | |
1589 | 1) & ~(AIX_VM_BLKSIZE - 1))) { | |
1590 | doMerge = 1; /* both in same block */ | |
1591 | } else if ((qbp->b_bcount & (AIX_VM_BLKSIZE - 1)) == 0 | |
1592 | && (qnbp->b_bcount & (AIX_VM_BLKSIZE - 1)) == 0) { | |
1593 | doMerge = 1; /* both integral #s of blocks */ | |
1594 | } | |
1595 | if (doMerge) { | |
1596 | struct buf *xbp; | |
1597 | ||
1598 | /* merge both of these blocks together */ | |
1599 | /* first set age to the older of the two */ | |
1600 | if ((int32long64_t) qnbp->av_back - | |
1601 | (int32long64_t) qbp->av_back < 0) { | |
1602 | qbp->av_back = qnbp->av_back; | |
1603 | } | |
1604 | lwbp = (struct buf **) &qbp->b_work; | |
1605 | /* find end of qbp's work queue */ | |
1606 | for (xbp = *lwbp; xbp; | |
1607 | lwbp = (struct buf **) &xbp->b_work, xbp = *lwbp); | |
1608 | /* | |
1609 | * now setting *lwbp will change the last ptr in the qbp's | |
1610 | * work chain | |
1611 | */ | |
1612 | qbp->av_forw = qnbp->av_forw; /* splice out qnbp */ | |
1613 | qbp->b_bcount += qnbp->b_bcount; /* fix count */ | |
1614 | *lwbp = qnbp; /* append qnbp to end */ | |
1615 | /* | |
1616 | * note that qnbp is bogus, but it doesn't matter because | |
1617 | * we're going to restart the for loop now. | |
1618 | */ | |
1619 | break; /* out of the for loop */ | |
1620 | } | |
1621 | } | |
1622 | } | |
1623 | } /* for loop for all interrupt data */ | |
1624 | /* at this point, all I/O has been queued. Wakeup the daemon */ | |
1625 | e_wakeup_one((int *)&afs_asyncbuf_cv); | |
1626 | unlock_enable(oldPriority, &afs_asyncbuf_lock); | |
1627 | return 0; | |
1628 | } | |
1629 | ||
1630 | ||
1631 | int | |
1632 | afs_inactive(struct vcache *avc, | |
1633 | afs_ucred_t *acred) | |
1634 | { | |
1635 | afs_InactiveVCache(avc, acred); | |
1636 | } | |
1637 | ||
1638 | int | |
1639 | afs_gn_revoke(struct vnode *vp, | |
1640 | int32long64_t cmd, | |
1641 | int32long64_t flag, | |
1642 | struct vattr *vinfop, | |
1643 | struct ucred *crp) | |
1644 | { | |
1645 | AFS_STATCNT(afs_gn_revoke); | |
1646 | /* NO SUPPORT for this in afs YET! */ | |
1647 | return (EOPNOTSUPP); | |
1648 | } | |
1649 | ||
1650 | int | |
1651 | afs_gn_getacl(struct vnode *vp, | |
1652 | struct uio *uiop, | |
1653 | struct ucred *cred) | |
1654 | { | |
1655 | return ENOSYS; | |
1656 | }; | |
1657 | ||
1658 | ||
1659 | int | |
1660 | afs_gn_setacl(struct vnode *vp, | |
1661 | struct uio *uiop, | |
1662 | struct ucred *cred) | |
1663 | { | |
1664 | return ENOSYS; | |
1665 | }; | |
1666 | ||
1667 | ||
1668 | int | |
1669 | afs_gn_getpcl(struct vnode *vp, | |
1670 | struct uio *uiop, | |
1671 | struct ucred *cred) | |
1672 | { | |
1673 | return ENOSYS; | |
1674 | }; | |
1675 | ||
1676 | ||
1677 | int | |
1678 | afs_gn_setpcl(struct vnode *vp, | |
1679 | struct uio *uiop, | |
1680 | struct ucred *cred) | |
1681 | { | |
1682 | return ENOSYS; | |
1683 | }; | |
1684 | ||
1685 | ||
1686 | int | |
1687 | afs_gn_seek(struct vnode* vp, offset_t * offp, struct ucred * crp) | |
1688 | { | |
1689 | /* | |
1690 | * File systems which do not wish to do offset validation can simply | |
1691 | * return 0. File systems which do not provide the vn_seek entry point | |
1692 | * will have a maximum offset of OFF_MAX (2 gigabytes minus 1) enforced | |
1693 | * by the logical file system. | |
1694 | */ | |
1695 | return 0; | |
1696 | } | |
1697 | ||
1698 | ||
1699 | int | |
1700 | afs_gn_enosys() | |
1701 | { | |
1702 | return ENOSYS; | |
1703 | } | |
1704 | ||
1705 | /* | |
1706 | * declare a struct vnodeops and initialize it with ptrs to all functions | |
1707 | */ | |
1708 | struct vnodeops afs_gn_vnodeops = { | |
1709 | /* creation/naming/deletion */ | |
1710 | afs_gn_link, | |
1711 | afs_gn_mkdir, | |
1712 | afs_gn_mknod, | |
1713 | afs_gn_remove, | |
1714 | afs_gn_rename, | |
1715 | afs_gn_rmdir, | |
1716 | /* lookup, file handle stuff */ | |
1717 | afs_gn_lookup, | |
1718 | (int(*)(struct vnode*,struct fileid*,struct ucred*)) | |
1719 | afs_gn_fid, | |
1720 | /* access to files */ | |
1721 | (int(*)(struct vnode *, int32long64_t, ext_t, caddr_t *,struct ucred *)) | |
1722 | afs_gn_open, | |
1723 | (int(*)(struct vnode *, struct vnode **, int32long64_t,caddr_t, int32long64_t, caddr_t *, struct ucred *)) | |
1724 | afs_gn_create, | |
1725 | afs_gn_hold, | |
1726 | afs_gn_rele, | |
1727 | afs_gn_close, | |
1728 | afs_gn_map, | |
1729 | afs_gn_unmap, | |
1730 | /* manipulate attributes of files */ | |
1731 | afs_gn_access, | |
1732 | afs_gn_getattr, | |
1733 | afs_gn_setattr, | |
1734 | /* data update operations */ | |
1735 | afs_gn_fclear, | |
1736 | afs_gn_fsync, | |
1737 | afs_gn_ftrunc, | |
1738 | afs_gn_rdwr, | |
1739 | afs_gn_lockctl, | |
1740 | /* extensions */ | |
1741 | afs_gn_ioctl, | |
1742 | afs_gn_readlink, | |
1743 | afs_gn_select, | |
1744 | afs_gn_symlink, | |
1745 | afs_gn_readdir, | |
1746 | /* buffer ops */ | |
1747 | (int(*)(struct vnode*,struct buf*,struct ucred*)) | |
1748 | afs_gn_strategy, | |
1749 | /* security things */ | |
1750 | afs_gn_revoke, | |
1751 | afs_gn_getacl, | |
1752 | afs_gn_setacl, | |
1753 | afs_gn_getpcl, | |
1754 | afs_gn_setpcl, | |
1755 | afs_gn_seek, | |
1756 | (int(*)(struct vnode *, int32long64_t, int32long64_t, offset_t, offset_t, struct ucred *)) | |
1757 | afs_gn_enosys, /* vn_fsync_range */ | |
1758 | (int(*)(struct vnode *, struct vnode **, int32long64_t, char *, struct vattr *, int32long64_t, caddr_t *, struct ucred *)) | |
1759 | afs_gn_enosys, /* vn_create_attr */ | |
1760 | (int(*)(struct vnode *, int32long64_t, void *, size_t, struct ucred *)) | |
1761 | afs_gn_enosys, /* vn_finfo */ | |
1762 | (int(*)(struct vnode *, caddr_t, offset_t, offset_t, uint32long64_t, uint32long64_t, struct ucred *)) | |
1763 | afs_gn_enosys, /* vn_map_lloff */ | |
1764 | (int(*)(struct vnode*,struct uio*,int*,struct ucred*)) | |
1765 | afs_gn_enosys, /* vn_readdir_eofp */ | |
1766 | (int(*)(struct vnode *, enum uio_rw, int32long64_t, struct uio *, ext_t , caddr_t, struct vattr *, struct vattr *, struct ucred *)) | |
1767 | afs_gn_enosys, /* vn_rdwr_attr */ | |
1768 | (int(*)(struct vnode*,int,void*,struct ucred*)) | |
1769 | afs_gn_enosys, /* vn_memcntl */ | |
1770 | #ifdef AFS_AIX53_ENV /* Present in AIX 5.3 and up */ | |
1771 | (int(*)(struct vnode*,const char*,struct uio*,struct ucred*)) | |
1772 | afs_gn_enosys, /* vn_getea */ | |
1773 | (int(*)(struct vnode*,const char*,struct uio*,int,struct ucred*)) | |
1774 | afs_gn_enosys, /* vn_setea */ | |
1775 | (int(*)(struct vnode *, struct uio *, struct ucred *)) | |
1776 | afs_gn_enosys, /* vn_listea */ | |
1777 | (int(*)(struct vnode *, const char *, struct ucred *)) | |
1778 | afs_gn_enosys, /* vn_removeea */ | |
1779 | (int(*)(struct vnode *, const char *, struct vattr *, struct ucred *)) | |
1780 | afs_gn_enosys, /* vn_statea */ | |
1781 | (int(*)(struct vnode *, uint64_t, acl_type_t *, struct uio *, size_t *, mode_t *, struct ucred *)) | |
1782 | afs_gn_enosys, /* vn_getxacl */ | |
1783 | (int(*)(struct vnode *, uint64_t, acl_type_t, struct uio *, mode_t, struct ucred *)) | |
1784 | afs_gn_enosys, /* vn_setxacl */ | |
1785 | #else /* AFS_AIX53_ENV */ | |
1786 | afs_gn_enosys, /* vn_spare7 */ | |
1787 | afs_gn_enosys, /* vn_spare8 */ | |
1788 | afs_gn_enosys, /* vn_spare9 */ | |
1789 | afs_gn_enosys, /* vn_spareA */ | |
1790 | afs_gn_enosys, /* vn_spareB */ | |
1791 | afs_gn_enosys, /* vn_spareC */ | |
1792 | afs_gn_enosys, /* vn_spareD */ | |
1793 | #endif /* AFS_AIX53_ENV */ | |
1794 | afs_gn_enosys, /* vn_spareE */ | |
1795 | afs_gn_enosys /* vn_spareF */ | |
1796 | #ifdef AFS_AIX51_ENV | |
1797 | ,(int(*)(struct gnode*,long long,char*,unsigned long*, unsigned long*,unsigned int*)) | |
1798 | afs_gn_enosys, /* pagerBackRange */ | |
1799 | (int64_t(*)(struct gnode*)) | |
1800 | afs_gn_enosys, /* pagerGetFileSize */ | |
1801 | (void(*)(struct gnode *, vpn_t, vpn_t *, vpn_t *, vpn_t *, boolean_t)) | |
1802 | afs_gn_enosys, /* pagerReadAhead */ | |
1803 | (void(*)(struct gnode *, int64_t, int64_t, uint)) | |
1804 | afs_gn_enosys, /* pagerReadWriteBehind */ | |
1805 | (void(*)(struct gnode*,long long,unsigned long,unsigned long,unsigned int)) | |
1806 | afs_gn_enosys /* pagerEndCopy */ | |
1807 | #endif | |
1808 | }; | |
1809 | struct vnodeops *afs_ops = &afs_gn_vnodeops; | |
1810 | ||
1811 | ||
1812 | ||
1813 | extern struct vfsops Afs_vfsops; | |
1814 | extern int Afs_init(); | |
1815 | ||
1816 | #define AFS_CALLOUT_TBL_SIZE 256 | |
1817 | ||
1818 | /* | |
1819 | * the following additional layer of gorp is due to the fact that the | |
1820 | * filesystem layer no longer obtains the kernel lock for me. I was relying | |
1821 | * on this behavior to avoid having to think about locking. | |
1822 | */ | |
1823 | ||
1824 | static | |
1825 | vfs_mount(struct vfs *a, struct ucred *b) | |
1826 | { | |
1827 | int glockOwner, ret; | |
1828 | ||
1829 | glockOwner = ISAFS_GLOCK(); | |
1830 | if (!glockOwner) | |
1831 | AFS_GLOCK(); | |
1832 | ret = (*Afs_vfsops.vfs_mount) (a, b); | |
1833 | if (!glockOwner) | |
1834 | AFS_GUNLOCK(); | |
1835 | ||
1836 | return ret; | |
1837 | } | |
1838 | ||
1839 | static | |
1840 | vfs_unmount(struct vfs *a, int b, struct ucred *c) | |
1841 | { | |
1842 | int glockOwner, ret; | |
1843 | ||
1844 | glockOwner = ISAFS_GLOCK(); | |
1845 | if (!glockOwner) | |
1846 | AFS_GLOCK(); | |
1847 | ret = (*Afs_vfsops.vfs_unmount) (a, b, c); | |
1848 | if (!glockOwner) | |
1849 | AFS_GUNLOCK(); | |
1850 | ||
1851 | return ret; | |
1852 | } | |
1853 | ||
1854 | static | |
1855 | vfs_root(struct vfs *a, struct vnode **b, struct ucred *c) | |
1856 | { | |
1857 | int glockOwner, ret; | |
1858 | ||
1859 | glockOwner = ISAFS_GLOCK(); | |
1860 | if (!glockOwner) | |
1861 | AFS_GLOCK(); | |
1862 | ret = (*Afs_vfsops.vfs_root) (a, b, c); | |
1863 | if (!glockOwner) | |
1864 | AFS_GUNLOCK(); | |
1865 | ||
1866 | return ret; | |
1867 | } | |
1868 | ||
1869 | static | |
1870 | vfs_statfs(struct vfs *a, struct statfs *b, struct ucred *c) | |
1871 | { | |
1872 | int glockOwner, ret; | |
1873 | ||
1874 | glockOwner = ISAFS_GLOCK(); | |
1875 | if (!glockOwner) | |
1876 | AFS_GLOCK(); | |
1877 | ret = (*Afs_vfsops.vfs_statfs) (a, b, c); | |
1878 | if (!glockOwner) | |
1879 | AFS_GUNLOCK(); | |
1880 | ||
1881 | return ret; | |
1882 | } | |
1883 | ||
1884 | static | |
1885 | vfs_sync(struct gfs *a) | |
1886 | { | |
1887 | int glockOwner, ret; | |
1888 | ||
1889 | glockOwner = ISAFS_GLOCK(); | |
1890 | if (!glockOwner) | |
1891 | AFS_GLOCK(); | |
1892 | ret = (*Afs_vfsops.vfs_sync) (a); | |
1893 | if (!glockOwner) | |
1894 | AFS_GUNLOCK(); | |
1895 | return ret; | |
1896 | } | |
1897 | ||
1898 | static | |
1899 | vfs_vget(struct vfs *a, struct vnode **b, struct fileid *c, struct ucred *d) | |
1900 | { | |
1901 | int glockOwner, ret; | |
1902 | ||
1903 | glockOwner = ISAFS_GLOCK(); | |
1904 | if (!glockOwner) | |
1905 | AFS_GLOCK(); | |
1906 | ret = (*Afs_vfsops.vfs_vget) (a, b, c, d); | |
1907 | if (!glockOwner) | |
1908 | AFS_GUNLOCK(); | |
1909 | ||
1910 | return ret; | |
1911 | } | |
1912 | ||
1913 | static | |
1914 | vfs_cntl(struct vfs *a, int b, caddr_t c, size_t d, struct ucred *e) | |
1915 | { | |
1916 | int glockOwner, ret; | |
1917 | ||
1918 | glockOwner = ISAFS_GLOCK(); | |
1919 | if (!glockOwner) | |
1920 | AFS_GLOCK(); | |
1921 | ret = (*Afs_vfsops.vfs_cntl) (a, b, c, d, e); | |
1922 | if (!glockOwner) | |
1923 | AFS_GUNLOCK(); | |
1924 | ||
1925 | return ret; | |
1926 | } | |
1927 | ||
1928 | static | |
1929 | vfs_quotactl(struct vfs *a, int b, uid_t c, caddr_t d, struct ucred *e) | |
1930 | { | |
1931 | int glockOwner, ret; | |
1932 | ||
1933 | glockOwner = ISAFS_GLOCK(); | |
1934 | if (!glockOwner) | |
1935 | AFS_GLOCK(); | |
1936 | ret = (*Afs_vfsops.vfs_quotactl) (a, b, c, d, e); | |
1937 | if (!glockOwner) | |
1938 | AFS_GUNLOCK(); | |
1939 | ||
1940 | return ret; | |
1941 | } | |
1942 | ||
1943 | #ifdef AFS_AIX51_ENV | |
1944 | static | |
1945 | vfs_syncvfs(struct gfs *a, struct vfs *b, int c, struct ucred *d) | |
1946 | { | |
1947 | int glockOwner, ret; | |
1948 | ||
1949 | glockOwner = ISAFS_GLOCK(); | |
1950 | if (!glockOwner) | |
1951 | AFS_GLOCK(); | |
1952 | ret = (*Afs_vfsops.vfs_syncvfs) (a, b, c, d); | |
1953 | if (!glockOwner) | |
1954 | AFS_GUNLOCK(); | |
1955 | ||
1956 | return ret; | |
1957 | } | |
1958 | #endif | |
1959 | ||
1960 | ||
1961 | struct vfsops locked_Afs_vfsops = { | |
1962 | vfs_mount, | |
1963 | vfs_unmount, | |
1964 | vfs_root, | |
1965 | vfs_statfs, | |
1966 | vfs_sync, | |
1967 | vfs_vget, | |
1968 | vfs_cntl, | |
1969 | vfs_quotactl, | |
1970 | #ifdef AFS_AIX51_ENV | |
1971 | vfs_syncvfs | |
1972 | #endif | |
1973 | }; | |
1974 | ||
1975 | static | |
1976 | vn_link(struct vnode *a, struct vnode *b, char *c, struct ucred *d) | |
1977 | { | |
1978 | int glockOwner, ret; | |
1979 | ||
1980 | glockOwner = ISAFS_GLOCK(); | |
1981 | if (!glockOwner) | |
1982 | AFS_GLOCK(); | |
1983 | ret = (*afs_gn_vnodeops.vn_link) (a, b, c, d); | |
1984 | if (!glockOwner) | |
1985 | AFS_GUNLOCK(); | |
1986 | ||
1987 | return ret; | |
1988 | } | |
1989 | ||
1990 | static | |
1991 | vn_mkdir(struct vnode *a, char *b, int32long64_t c, struct ucred *d) | |
1992 | { | |
1993 | int glockOwner, ret; | |
1994 | ||
1995 | glockOwner = ISAFS_GLOCK(); | |
1996 | if (!glockOwner) | |
1997 | AFS_GLOCK(); | |
1998 | ret = (*afs_gn_vnodeops.vn_mkdir) (a, b, c, d); | |
1999 | if (!glockOwner) | |
2000 | AFS_GUNLOCK(); | |
2001 | ||
2002 | return ret; | |
2003 | } | |
2004 | ||
2005 | static | |
2006 | vn_mknod(struct vnode *a, caddr_t b, int32long64_t c, dev_t d, | |
2007 | struct ucred *e) | |
2008 | { | |
2009 | int glockOwner, ret; | |
2010 | ||
2011 | glockOwner = ISAFS_GLOCK(); | |
2012 | if (!glockOwner) | |
2013 | AFS_GLOCK(); | |
2014 | ret = (*afs_gn_vnodeops.vn_mknod) (a, b, c, d, e); | |
2015 | if (!glockOwner) | |
2016 | AFS_GUNLOCK(); | |
2017 | ||
2018 | return ret; | |
2019 | } | |
2020 | ||
2021 | static | |
2022 | vn_remove(struct vnode *a, struct vnode *b, char *c, struct ucred *d) | |
2023 | { | |
2024 | int glockOwner, ret; | |
2025 | ||
2026 | glockOwner = ISAFS_GLOCK(); | |
2027 | if (!glockOwner) | |
2028 | AFS_GLOCK(); | |
2029 | ret = (*afs_gn_vnodeops.vn_remove) (a, b, c, d); | |
2030 | if (!glockOwner) | |
2031 | AFS_GUNLOCK(); | |
2032 | ||
2033 | return ret; | |
2034 | } | |
2035 | ||
2036 | static | |
2037 | vn_rename(struct vnode *a, struct vnode *b, caddr_t c, struct vnode *d, | |
2038 | struct vnode *e, caddr_t f, struct ucred *g) | |
2039 | { | |
2040 | int glockOwner, ret; | |
2041 | ||
2042 | glockOwner = ISAFS_GLOCK(); | |
2043 | if (!glockOwner) | |
2044 | AFS_GLOCK(); | |
2045 | ret = (*afs_gn_vnodeops.vn_rename) (a, b, c, d, e, f, g); | |
2046 | if (!glockOwner) | |
2047 | AFS_GUNLOCK(); | |
2048 | ||
2049 | return ret; | |
2050 | } | |
2051 | ||
2052 | static | |
2053 | vn_rmdir(struct vnode *a, struct vnode *b, char *c, struct ucred *d) | |
2054 | { | |
2055 | int glockOwner, ret; | |
2056 | ||
2057 | glockOwner = ISAFS_GLOCK(); | |
2058 | if (!glockOwner) | |
2059 | AFS_GLOCK(); | |
2060 | ret = (*afs_gn_vnodeops.vn_rmdir) (a, b, c, d); | |
2061 | if (!glockOwner) | |
2062 | AFS_GUNLOCK(); | |
2063 | ||
2064 | return ret; | |
2065 | } | |
2066 | ||
2067 | static | |
2068 | vn_lookup(struct vnode *a, struct vnode **b, char *c, int32long64_t d, | |
2069 | struct vattr *v, struct ucred *e) | |
2070 | { | |
2071 | int glockOwner, ret; | |
2072 | ||
2073 | glockOwner = ISAFS_GLOCK(); | |
2074 | if (!glockOwner) | |
2075 | AFS_GLOCK(); | |
2076 | ret = (*afs_gn_vnodeops.vn_lookup) (a, b, c, d, v, e); | |
2077 | if (!glockOwner) | |
2078 | AFS_GUNLOCK(); | |
2079 | ||
2080 | return ret; | |
2081 | } | |
2082 | ||
2083 | static | |
2084 | vn_fid(struct vnode *a, struct fileid *b, struct ucred *c) | |
2085 | { | |
2086 | int glockOwner, ret; | |
2087 | ||
2088 | glockOwner = ISAFS_GLOCK(); | |
2089 | if (!glockOwner) | |
2090 | AFS_GLOCK(); | |
2091 | ret = (*afs_gn_vnodeops.vn_fid) (a, b, c); | |
2092 | if (!glockOwner) | |
2093 | AFS_GUNLOCK(); | |
2094 | ||
2095 | return ret; | |
2096 | } | |
2097 | ||
2098 | static | |
2099 | vn_open(struct vnode *a, | |
2100 | int32long64_t b, | |
2101 | ext_t c, | |
2102 | caddr_t * d, | |
2103 | struct ucred *e) | |
2104 | { | |
2105 | int glockOwner, ret; | |
2106 | ||
2107 | glockOwner = ISAFS_GLOCK(); | |
2108 | if (!glockOwner) | |
2109 | AFS_GLOCK(); | |
2110 | ret = (*afs_gn_vnodeops.vn_open) (a, b, c, d, e); | |
2111 | if (!glockOwner) | |
2112 | AFS_GUNLOCK(); | |
2113 | ||
2114 | return ret; | |
2115 | } | |
2116 | ||
2117 | static | |
2118 | vn_create(struct vnode *a, struct vnode **b, int32long64_t c, caddr_t d, | |
2119 | int32long64_t e, caddr_t * f, struct ucred *g) | |
2120 | { | |
2121 | int glockOwner, ret; | |
2122 | ||
2123 | glockOwner = ISAFS_GLOCK(); | |
2124 | if (!glockOwner) | |
2125 | AFS_GLOCK(); | |
2126 | ret = (*afs_gn_vnodeops.vn_create) (a, b, c, d, e, f, g); | |
2127 | if (!glockOwner) | |
2128 | AFS_GUNLOCK(); | |
2129 | ||
2130 | return ret; | |
2131 | } | |
2132 | ||
2133 | static | |
2134 | vn_hold(struct vnode *a) | |
2135 | { | |
2136 | int glockOwner, ret; | |
2137 | ||
2138 | glockOwner = ISAFS_GLOCK(); | |
2139 | if (!glockOwner) | |
2140 | AFS_GLOCK(); | |
2141 | ret = (*afs_gn_vnodeops.vn_hold) (a); | |
2142 | if (!glockOwner) | |
2143 | AFS_GUNLOCK(); | |
2144 | ||
2145 | return ret; | |
2146 | } | |
2147 | ||
2148 | static | |
2149 | vn_rele(struct vnode *a) | |
2150 | { | |
2151 | int glockOwner, ret; | |
2152 | ||
2153 | glockOwner = ISAFS_GLOCK(); | |
2154 | if (!glockOwner) | |
2155 | AFS_GLOCK(); | |
2156 | ret = (*afs_gn_vnodeops.vn_rele) (a); | |
2157 | if (!glockOwner) | |
2158 | AFS_GUNLOCK(); | |
2159 | ||
2160 | return ret; | |
2161 | } | |
2162 | ||
2163 | static | |
2164 | vn_close(struct vnode *a, int32long64_t b, caddr_t c, struct ucred *d) | |
2165 | { | |
2166 | int glockOwner, ret; | |
2167 | ||
2168 | glockOwner = ISAFS_GLOCK(); | |
2169 | if (!glockOwner) | |
2170 | AFS_GLOCK(); | |
2171 | ret = (*afs_gn_vnodeops.vn_close) (a, b, c, d); | |
2172 | if (!glockOwner) | |
2173 | AFS_GUNLOCK(); | |
2174 | ||
2175 | return ret; | |
2176 | } | |
2177 | ||
2178 | static | |
2179 | vn_map(struct vnode *a, caddr_t b, uint32long64_t c, uint32long64_t d, | |
2180 | uint32long64_t e, struct ucred *f) | |
2181 | { | |
2182 | int glockOwner, ret; | |
2183 | ||
2184 | glockOwner = ISAFS_GLOCK(); | |
2185 | if (!glockOwner) | |
2186 | AFS_GLOCK(); | |
2187 | ret = (*afs_gn_vnodeops.vn_map) (a, b, c, d, e, f); | |
2188 | if (!glockOwner) | |
2189 | AFS_GUNLOCK(); | |
2190 | ||
2191 | return ret; | |
2192 | } | |
2193 | ||
2194 | static | |
2195 | vn_unmap(struct vnode *a, int32long64_t b, struct ucred *c) | |
2196 | { | |
2197 | int glockOwner, ret; | |
2198 | ||
2199 | glockOwner = ISAFS_GLOCK(); | |
2200 | if (!glockOwner) | |
2201 | AFS_GLOCK(); | |
2202 | ret = (*afs_gn_vnodeops.vn_unmap) (a, b, c); | |
2203 | if (!glockOwner) | |
2204 | AFS_GUNLOCK(); | |
2205 | ||
2206 | return ret; | |
2207 | } | |
2208 | ||
2209 | static | |
2210 | vn_access(struct vnode *a, int32long64_t b, int32long64_t c, struct ucred *d) | |
2211 | { | |
2212 | int glockOwner, ret; | |
2213 | ||
2214 | glockOwner = ISAFS_GLOCK(); | |
2215 | if (!glockOwner) | |
2216 | AFS_GLOCK(); | |
2217 | ret = (*afs_gn_vnodeops.vn_access) (a, b, c, d); | |
2218 | if (!glockOwner) | |
2219 | AFS_GUNLOCK(); | |
2220 | ||
2221 | return ret; | |
2222 | } | |
2223 | ||
2224 | static | |
2225 | vn_getattr(struct vnode *a, struct vattr *b, struct ucred *c) | |
2226 | { | |
2227 | int glockOwner, ret; | |
2228 | ||
2229 | glockOwner = ISAFS_GLOCK(); | |
2230 | if (!glockOwner) | |
2231 | AFS_GLOCK(); | |
2232 | ret = (*afs_gn_vnodeops.vn_getattr) (a, b, c); | |
2233 | if (!glockOwner) | |
2234 | AFS_GUNLOCK(); | |
2235 | ||
2236 | return ret; | |
2237 | } | |
2238 | ||
2239 | static | |
2240 | vn_setattr(struct vnode *a, int32long64_t b, int32long64_t c, int32long64_t d, | |
2241 | int32long64_t e, struct ucred *f) | |
2242 | { | |
2243 | int glockOwner, ret; | |
2244 | ||
2245 | glockOwner = ISAFS_GLOCK(); | |
2246 | if (!glockOwner) | |
2247 | AFS_GLOCK(); | |
2248 | ret = (*afs_gn_vnodeops.vn_setattr) (a, b, c, d, e, f); | |
2249 | if (!glockOwner) | |
2250 | AFS_GUNLOCK(); | |
2251 | ||
2252 | return ret; | |
2253 | } | |
2254 | ||
2255 | static | |
2256 | vn_fclear(struct vnode *a, int32long64_t b, offset_t c, offset_t d | |
2257 | , caddr_t e, struct ucred *f) | |
2258 | { | |
2259 | int glockOwner, ret; | |
2260 | ||
2261 | glockOwner = ISAFS_GLOCK(); | |
2262 | if (!glockOwner) | |
2263 | AFS_GLOCK(); | |
2264 | ret = (*afs_gn_vnodeops.vn_fclear) (a, b, c, d, e, f); | |
2265 | if (!glockOwner) | |
2266 | AFS_GUNLOCK(); | |
2267 | ||
2268 | return ret; | |
2269 | } | |
2270 | ||
2271 | static | |
2272 | vn_fsync(struct vnode *a, int32long64_t b, int32long64_t c, struct ucred *d) | |
2273 | { | |
2274 | int glockOwner, ret; | |
2275 | ||
2276 | glockOwner = ISAFS_GLOCK(); | |
2277 | if (!glockOwner) | |
2278 | AFS_GLOCK(); | |
2279 | ret = (*afs_gn_vnodeops.vn_fsync) (a, b, c, d); | |
2280 | if (!glockOwner) | |
2281 | AFS_GUNLOCK(); | |
2282 | ||
2283 | return ret; | |
2284 | } | |
2285 | ||
2286 | static | |
2287 | vn_ftrunc(struct vnode *a, int32long64_t b, offset_t c, caddr_t d, | |
2288 | struct ucred *e) | |
2289 | { | |
2290 | int glockOwner, ret; | |
2291 | ||
2292 | glockOwner = ISAFS_GLOCK(); | |
2293 | if (!glockOwner) | |
2294 | AFS_GLOCK(); | |
2295 | ret = (*afs_gn_vnodeops.vn_ftrunc) (a, b, c, d, e); | |
2296 | if (!glockOwner) | |
2297 | AFS_GUNLOCK(); | |
2298 | ||
2299 | return ret; | |
2300 | } | |
2301 | ||
2302 | static | |
2303 | vn_rdwr(struct vnode *a, enum uio_rw b, int32long64_t c, struct uio *d, | |
2304 | ext_t e, caddr_t f, struct vattr *v, struct ucred *g) | |
2305 | { | |
2306 | int glockOwner, ret; | |
2307 | ||
2308 | glockOwner = ISAFS_GLOCK(); | |
2309 | if (!glockOwner) | |
2310 | AFS_GLOCK(); | |
2311 | ret = (*afs_gn_vnodeops.vn_rdwr) (a, b, c, d, e, f, v, g); | |
2312 | if (!glockOwner) | |
2313 | AFS_GUNLOCK(); | |
2314 | ||
2315 | return ret; | |
2316 | } | |
2317 | ||
2318 | static | |
2319 | vn_lockctl(struct vnode *a, | |
2320 | offset_t b, | |
2321 | struct eflock *c, | |
2322 | int32long64_t d, | |
2323 | int (*e) (), | |
2324 | #ifdef AFS_AIX52_ENV /* Changed in AIX 5.2 and up */ | |
2325 | ulong * f, | |
2326 | #else /* AFS_AIX52_ENV */ | |
2327 | ulong32int64_t * f, | |
2328 | #endif /* AFS_AIX52_ENV */ | |
2329 | struct ucred *g) | |
2330 | { | |
2331 | int glockOwner, ret; | |
2332 | ||
2333 | glockOwner = ISAFS_GLOCK(); | |
2334 | if (!glockOwner) | |
2335 | AFS_GLOCK(); | |
2336 | ret = (*afs_gn_vnodeops.vn_lockctl) (a, b, c, d, e, f, g); | |
2337 | if (!glockOwner) | |
2338 | AFS_GUNLOCK(); | |
2339 | ||
2340 | return ret; | |
2341 | } | |
2342 | ||
2343 | static | |
2344 | vn_ioctl(struct vnode *a, int32long64_t b, caddr_t c, size_t d, ext_t e, | |
2345 | struct ucred *f) | |
2346 | { | |
2347 | int glockOwner, ret; | |
2348 | ||
2349 | glockOwner = ISAFS_GLOCK(); | |
2350 | if (!glockOwner) | |
2351 | AFS_GLOCK(); | |
2352 | ret = (*afs_gn_vnodeops.vn_ioctl) (a, b, c, d, e, f); | |
2353 | if (!glockOwner) | |
2354 | AFS_GUNLOCK(); | |
2355 | ||
2356 | return ret; | |
2357 | } | |
2358 | ||
2359 | static | |
2360 | vn_readlink(struct vnode *a, struct uio *b, struct ucred *c) | |
2361 | { | |
2362 | int glockOwner, ret; | |
2363 | ||
2364 | glockOwner = ISAFS_GLOCK(); | |
2365 | if (!glockOwner) | |
2366 | AFS_GLOCK(); | |
2367 | ret = (*afs_gn_vnodeops.vn_readlink) (a, b, c); | |
2368 | if (!glockOwner) | |
2369 | AFS_GUNLOCK(); | |
2370 | ||
2371 | return ret; | |
2372 | } | |
2373 | ||
2374 | static | |
2375 | vn_select(struct vnode *a, int32long64_t b, ushort c, ushort * d, | |
2376 | void (*e) (), caddr_t f, struct ucred *g) | |
2377 | { | |
2378 | int glockOwner, ret; | |
2379 | ||
2380 | glockOwner = ISAFS_GLOCK(); | |
2381 | if (!glockOwner) | |
2382 | AFS_GLOCK(); | |
2383 | ret = (*afs_gn_vnodeops.vn_select) (a, b, c, d, e, f, g); | |
2384 | if (!glockOwner) | |
2385 | AFS_GUNLOCK(); | |
2386 | ||
2387 | return ret; | |
2388 | } | |
2389 | ||
2390 | static | |
2391 | vn_symlink(struct vnode *a, char *b, char *c, struct ucred *d) | |
2392 | { | |
2393 | int glockOwner, ret; | |
2394 | ||
2395 | glockOwner = ISAFS_GLOCK(); | |
2396 | if (!glockOwner) | |
2397 | AFS_GLOCK(); | |
2398 | ret = (*afs_gn_vnodeops.vn_symlink) (a, b, c, d); | |
2399 | if (!glockOwner) | |
2400 | AFS_GUNLOCK(); | |
2401 | ||
2402 | return ret; | |
2403 | } | |
2404 | ||
2405 | static | |
2406 | vn_readdir(struct vnode *a, struct uio *b, struct ucred *c) | |
2407 | { | |
2408 | int glockOwner, ret; | |
2409 | ||
2410 | glockOwner = ISAFS_GLOCK(); | |
2411 | if (!glockOwner) | |
2412 | AFS_GLOCK(); | |
2413 | ret = (*afs_gn_vnodeops.vn_readdir) (a, b, c); | |
2414 | if (!glockOwner) | |
2415 | AFS_GUNLOCK(); | |
2416 | ||
2417 | return ret; | |
2418 | } | |
2419 | ||
2420 | static | |
2421 | vn_revoke(struct vnode *a, int32long64_t b, int32long64_t c, struct vattr *d, | |
2422 | struct ucred *e) | |
2423 | { | |
2424 | int glockOwner, ret; | |
2425 | ||
2426 | glockOwner = ISAFS_GLOCK(); | |
2427 | if (!glockOwner) | |
2428 | AFS_GLOCK(); | |
2429 | ret = (*afs_gn_vnodeops.vn_revoke) (a, b, c, d, e); | |
2430 | if (!glockOwner) | |
2431 | AFS_GUNLOCK(); | |
2432 | ||
2433 | return ret; | |
2434 | } | |
2435 | ||
2436 | static | |
2437 | vn_getacl(struct vnode *a, struct uio *b, struct ucred *c) | |
2438 | { | |
2439 | int glockOwner, ret; | |
2440 | ||
2441 | glockOwner = ISAFS_GLOCK(); | |
2442 | if (!glockOwner) | |
2443 | AFS_GLOCK(); | |
2444 | ret = (*afs_gn_vnodeops.vn_getacl) (a, b, c); | |
2445 | if (!glockOwner) | |
2446 | AFS_GUNLOCK(); | |
2447 | ||
2448 | return ret; | |
2449 | } | |
2450 | ||
2451 | static | |
2452 | vn_setacl(struct vnode *a, struct uio *b, struct ucred *c) | |
2453 | { | |
2454 | int glockOwner, ret; | |
2455 | ||
2456 | glockOwner = ISAFS_GLOCK(); | |
2457 | if (!glockOwner) | |
2458 | AFS_GLOCK(); | |
2459 | ret = (*afs_gn_vnodeops.vn_setacl) (a, b, c); | |
2460 | if (!glockOwner) | |
2461 | AFS_GUNLOCK(); | |
2462 | ||
2463 | return ret; | |
2464 | } | |
2465 | ||
2466 | static | |
2467 | vn_getpcl(struct vnode *a, struct uio *b, struct ucred *c) | |
2468 | { | |
2469 | int glockOwner, ret; | |
2470 | ||
2471 | glockOwner = ISAFS_GLOCK(); | |
2472 | if (!glockOwner) | |
2473 | AFS_GLOCK(); | |
2474 | ret = (*afs_gn_vnodeops.vn_getpcl) (a, b, c); | |
2475 | if (!glockOwner) | |
2476 | AFS_GUNLOCK(); | |
2477 | ||
2478 | return ret; | |
2479 | } | |
2480 | ||
2481 | static | |
2482 | vn_setpcl(struct vnode *a, struct uio *b, struct ucred *c) | |
2483 | { | |
2484 | int glockOwner, ret; | |
2485 | ||
2486 | glockOwner = ISAFS_GLOCK(); | |
2487 | if (!glockOwner) | |
2488 | AFS_GLOCK(); | |
2489 | ret = (*afs_gn_vnodeops.vn_setpcl) (a, b, c); | |
2490 | if (!glockOwner) | |
2491 | AFS_GUNLOCK(); | |
2492 | ||
2493 | return ret; | |
2494 | } | |
2495 | ||
2496 | ||
2497 | struct vnodeops locked_afs_gn_vnodeops = { | |
2498 | vn_link, | |
2499 | vn_mkdir, | |
2500 | vn_mknod, | |
2501 | vn_remove, | |
2502 | vn_rename, | |
2503 | vn_rmdir, | |
2504 | vn_lookup, | |
2505 | vn_fid, | |
2506 | vn_open, | |
2507 | vn_create, | |
2508 | vn_hold, | |
2509 | vn_rele, | |
2510 | vn_close, | |
2511 | vn_map, | |
2512 | vn_unmap, | |
2513 | vn_access, | |
2514 | vn_getattr, | |
2515 | vn_setattr, | |
2516 | vn_fclear, | |
2517 | vn_fsync, | |
2518 | vn_ftrunc, | |
2519 | vn_rdwr, | |
2520 | vn_lockctl, | |
2521 | vn_ioctl, | |
2522 | vn_readlink, | |
2523 | vn_select, | |
2524 | vn_symlink, | |
2525 | vn_readdir, | |
2526 | (int(*)(struct vnode*,struct buf*,struct ucred*)) | |
2527 | afs_gn_strategy, /* no locking!!! (discovered the hard way) */ | |
2528 | vn_revoke, | |
2529 | vn_getacl, | |
2530 | vn_setacl, | |
2531 | vn_getpcl, | |
2532 | vn_setpcl, | |
2533 | afs_gn_seek, | |
2534 | (int(*)(struct vnode *, int32long64_t, int32long64_t, offset_t, offset_t, struct ucred *)) | |
2535 | afs_gn_enosys, /* vn_fsync_range */ | |
2536 | (int(*)(struct vnode *, struct vnode **, int32long64_t, char *, struct vattr *, int32long64_t, caddr_t *, struct ucred *)) | |
2537 | afs_gn_enosys, /* vn_create_attr */ | |
2538 | (int(*)(struct vnode *, int32long64_t, void *, size_t, struct ucred *)) | |
2539 | afs_gn_enosys, /* vn_finfo */ | |
2540 | (int(*)(struct vnode *, caddr_t, offset_t, offset_t, uint32long64_t, uint32long64_t, struct ucred *)) | |
2541 | afs_gn_enosys, /* vn_map_lloff */ | |
2542 | (int(*)(struct vnode*,struct uio*,int*,struct ucred*)) | |
2543 | afs_gn_enosys, /* vn_readdir_eofp */ | |
2544 | (int(*)(struct vnode *, enum uio_rw, int32long64_t, struct uio *, ext_t , caddr_t, struct vattr *, struct vattr *, struct ucred *)) | |
2545 | afs_gn_enosys, /* vn_rdwr_attr */ | |
2546 | (int(*)(struct vnode*,int,void*,struct ucred*)) | |
2547 | afs_gn_enosys, /* vn_memcntl */ | |
2548 | #ifdef AFS_AIX53_ENV /* Present in AIX 5.3 and up */ | |
2549 | (int(*)(struct vnode*,const char*,struct uio*,struct ucred*)) | |
2550 | afs_gn_enosys, /* vn_getea */ | |
2551 | (int(*)(struct vnode*,const char*,struct uio*,int,struct ucred*)) | |
2552 | afs_gn_enosys, /* vn_setea */ | |
2553 | (int(*)(struct vnode *, struct uio *, struct ucred *)) | |
2554 | afs_gn_enosys, /* vn_listea */ | |
2555 | (int(*)(struct vnode *, const char *, struct ucred *)) | |
2556 | afs_gn_enosys, /* vn_removeea */ | |
2557 | (int(*)(struct vnode *, const char *, struct vattr *, struct ucred *)) | |
2558 | afs_gn_enosys, /* vn_statea */ | |
2559 | (int(*)(struct vnode *, uint64_t, acl_type_t *, struct uio *, size_t *, mode_t *, struct ucred *)) | |
2560 | afs_gn_enosys, /* vn_getxacl */ | |
2561 | (int(*)(struct vnode *, uint64_t, acl_type_t, struct uio *, mode_t, struct ucred *)) | |
2562 | afs_gn_enosys, /* vn_setxacl */ | |
2563 | #else /* AFS_AIX53_ENV */ | |
2564 | afs_gn_enosys, /* vn_spare7 */ | |
2565 | afs_gn_enosys, /* vn_spare8 */ | |
2566 | afs_gn_enosys, /* vn_spare9 */ | |
2567 | afs_gn_enosys, /* vn_spareA */ | |
2568 | afs_gn_enosys, /* vn_spareB */ | |
2569 | afs_gn_enosys, /* vn_spareC */ | |
2570 | afs_gn_enosys, /* vn_spareD */ | |
2571 | #endif /* AFS_AIX53_ENV */ | |
2572 | afs_gn_enosys, /* vn_spareE */ | |
2573 | afs_gn_enosys /* vn_spareF */ | |
2574 | #ifdef AFS_AIX51_ENV | |
2575 | ,(int(*)(struct gnode*,long long,char*,unsigned long*, unsigned long*,unsigned int*)) | |
2576 | afs_gn_enosys, /* pagerBackRange */ | |
2577 | (int64_t(*)(struct gnode*)) | |
2578 | afs_gn_enosys, /* pagerGetFileSize */ | |
2579 | (void(*)(struct gnode *, vpn_t, vpn_t *, vpn_t *, vpn_t *, boolean_t)) | |
2580 | afs_gn_enosys, /* pagerReadAhead */ | |
2581 | (void(*)(struct gnode *, int64_t, int64_t, uint)) | |
2582 | afs_gn_enosys, /* pagerReadWriteBehind */ | |
2583 | (void(*)(struct gnode*,long long,unsigned long,unsigned long,unsigned int)) | |
2584 | afs_gn_enosys /* pagerEndCopy */ | |
2585 | #endif | |
2586 | }; | |
2587 | ||
2588 | struct gfs afs_gfs = { | |
2589 | &locked_Afs_vfsops, | |
2590 | &locked_afs_gn_vnodeops, | |
2591 | AFS_MOUNT_AFS, | |
2592 | "afs", | |
2593 | Afs_init, | |
2594 | GFS_VERSION4 | GFS_VERSION42 | GFS_REMOTE, | |
2595 | NULL | |
2596 | }; |