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
11 * --------------------- Required definitions ---------------------
13 #include <afsconfig.h>
14 #include "afs/param.h"
17 #include "afs/sysincludes.h" /*Standard vendor system headers */
18 #include "afsincludes.h" /*AFS-based standard headers */
19 #include "afs/afs_stats.h" /* statistics */
20 #include "afs/afs_cbqueue.h"
21 #include "afs/afs_osidnlc.h"
23 afs_uint32 afs_stampValue = 0;
29 * Send a truncation request to a FileServer.
35 * We're write-locked upon entry.
39 afs_StoreMini(struct vcache *avc, struct vrequest *areq)
42 struct AFSStoreStatus InStatus;
43 struct AFSFetchStatus OutStatus;
44 struct AFSVolSync tsync;
46 struct rx_call *tcall;
47 struct rx_connection *rxconn;
48 afs_size_t tlen, xlen = 0;
50 AFS_STATCNT(afs_StoreMini);
51 afs_Trace2(afs_iclSetp, CM_TRACE_STOREMINI, ICL_TYPE_POINTER, avc,
52 ICL_TYPE_INT32, avc->f.m.Length);
53 tlen = avc->f.m.Length;
54 if (avc->f.truncPos < tlen)
55 tlen = avc->f.truncPos;
56 avc->f.truncPos = AFS_NOTRUNC;
57 avc->f.states &= ~CExtendedFile;
60 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
62 #ifdef AFS_64BIT_CLIENT
66 tcall = rx_NewCall(rxconn);
68 /* Set the client mod time since we always want the file
69 * to have the client's mod time and not the server's one
70 * (to avoid problems with make, etc.) It almost always
71 * works fine with standard afs because them server/client
72 * times are in sync and more importantly this storemini
73 * it's a special call that would typically be followed by
74 * the proper store-data or store-status calls.
76 InStatus.Mask = AFS_SETMODTIME;
77 InStatus.ClientModTime = avc->f.m.Date;
78 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREDATA);
79 afs_Trace4(afs_iclSetp, CM_TRACE_STOREDATA64, ICL_TYPE_FID,
80 &avc->f.fid.Fid, ICL_TYPE_OFFSET,
81 ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_OFFSET,
82 ICL_HANDLE_OFFSET(xlen), ICL_TYPE_OFFSET,
83 ICL_HANDLE_OFFSET(tlen));
85 #ifdef AFS_64BIT_CLIENT
86 if (!afs_serverHasNo64Bit(tc)) {
88 StartRXAFS_StoreData64(tcall,
89 (struct AFSFid *)&avc->f.fid.Fid,
90 &InStatus, avc->f.m.Length,
91 (afs_size_t) 0, tlen);
96 if ((avc->f.m.Length > 0x7fffffff) ||
97 (tlen > 0x7fffffff) ||
98 ((0x7fffffff - tlen) < avc->f.m.Length)) {
103 StartRXAFS_StoreData(tcall,
104 (struct AFSFid *)&avc->f.fid.Fid,
105 &InStatus, l1, 0, l2);
107 #else /* AFS_64BIT_CLIENT */
109 StartRXAFS_StoreData(tcall, (struct AFSFid *)&avc->f.fid.Fid,
110 &InStatus, avc->f.m.Length, 0, tlen);
111 #endif /* AFS_64BIT_CLIENT */
113 code = EndRXAFS_StoreData(tcall, &OutStatus, &tsync);
115 #ifdef AFS_64BIT_CLIENT
118 code = rx_EndCall(tcall, code);
121 #ifdef AFS_64BIT_CLIENT
122 if (code == RXGEN_OPCODE && !afs_serverHasNo64Bit(tc)) {
123 afs_serverSetNo64Bit(tc);
126 #endif /* AFS_64BIT_CLIENT */
130 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREDATA,
134 afs_ProcessFS(avc, &OutStatus, areq);
140 * afs_StoreAllSegments
143 * Stores all modified segments back to server
146 * avc : Pointer to vcache entry.
147 * areq : Pointer to request structure.
150 * Called with avc write-locked.
152 #if defined (AFS_HPUX_ENV)
153 int NCHUNKSATONCE = 3;
155 int NCHUNKSATONCE = 64;
161 afs_StoreAllSegments(struct vcache *avc, struct vrequest *areq,
167 afs_int32 origCBs, foreign = 0;
169 afs_hyper_t newDV, oldDV; /* DV when we start, and finish, respectively */
170 struct dcache **dcList;
171 unsigned int i, j, minj, moredata, high, off;
172 afs_size_t maxStoredLength; /* highest offset we've written to server. */
173 int safety, marineronce = 0;
175 AFS_STATCNT(afs_StoreAllSegments);
177 hset(oldDV, avc->f.m.DataVersion);
178 hset(newDV, avc->f.m.DataVersion);
179 hash = DVHash(&avc->f.fid);
180 foreign = (avc->f.states & CForeign);
181 dcList = (struct dcache **)osi_AllocLargeSpace(AFS_LRALLOCSIZ);
182 afs_Trace2(afs_iclSetp, CM_TRACE_STOREALL, ICL_TYPE_POINTER, avc,
183 ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->f.m.Length));
184 #if !defined(AFS_AIX32_ENV) && !defined(AFS_SGI65_ENV)
185 /* In the aix vm implementation we need to do the vm_writep even
186 * on the memcache case since that's we adjust the file's size
187 * and finish flushing partial vm pages.
189 if ((cacheDiskType != AFS_FCACHE_TYPE_MEM) ||
190 (sync & AFS_VMSYNC_INVAL) || (sync & AFS_VMSYNC) ||
191 (sync & AFS_LASTSTORE))
192 #endif /* !AFS_AIX32_ENV && !AFS_SGI65_ENV */
194 /* If we're not diskless, reading a file may stress the VM
195 * system enough to cause a pageout, and this vnode would be
196 * locked when the pageout occurs. We can prevent this problem
197 * by making sure all dirty pages are already flushed. We don't
198 * do this when diskless because reading a diskless (i.e.
199 * memory-resident) chunk doesn't require using new VM, and we
200 * also don't want to dump more dirty data into a diskless cache,
201 * since they're smaller, and we might exceed its available
204 #if defined(AFS_SUN5_ENV)
205 if (sync & AFS_VMSYNC_INVAL) /* invalidate VM pages */
206 osi_VM_TryToSmush(avc, CRED(), 1);
209 osi_VM_StoreAllSegments(avc);
211 if (AFS_IS_DISCONNECTED && !AFS_IN_SYNC) {
212 /* This will probably make someone sad ... */
213 /*printf("Net down in afs_StoreSegments\n");*/
216 ConvertWToSLock(&avc->lock);
219 * Subsequent code expects a sorted list, and it expects all the
220 * chunks in the list to be contiguous, so we need a sort and a
221 * while loop in here, too - but this will work for a first pass...
222 * 92.10.05 - OK, there's a sort in here now. It's kind of a modified
223 * bin sort, I guess. Chunk numbers start with 0
225 * - Have to get a write lock on xdcache because GetDSlot might need it (if
226 * the chunk doesn't have a dcache struct).
227 * This seems like overkill in most cases.
228 * - I'm not sure that it's safe to do "index = .hvNextp", then unlock
229 * xdcache, then relock xdcache and try to use index. It is done
230 * a lot elsewhere in the CM, but I'm not buying that argument.
231 * - should be able to check IFDataMod without doing the GetDSlot (just
232 * hold afs_xdcache). That way, it's easy to do this without the
233 * writelock on afs_xdcache, and we save unneccessary disk
234 * operations. I don't think that works, 'cuz the next pointers
237 origCBs = afs_allCBs;
243 memset(dcList, 0, NCHUNKSATONCE * sizeof(struct dcache *));
247 /* lock and start over from beginning of hash chain
248 * in order to avoid a race condition. */
249 ObtainWriteLock(&afs_xdcache, 284);
250 index = afs_dvhashTbl[hash];
252 for (j = 0; index != NULLIDX;) {
253 if ((afs_indexFlags[index] & IFDataMod)
254 && (afs_indexUnique[index] == avc->f.fid.Fid.Unique)) {
255 tdc = afs_GetValidDSlot(index); /* refcount+1. */
256 ReleaseReadLock(&tdc->tlock);
257 if (!FidCmp(&tdc->f.fid, &avc->f.fid) && tdc->f.chunk >= minj) {
258 off = tdc->f.chunk - minj;
259 if (off < NCHUNKSATONCE) {
261 osi_Panic("dclist slot already in use!");
262 if (afs_mariner && !marineronce) {
263 /* first chunk only */
264 afs_MarinerLog("store$Storing", avc);
271 /* DCLOCKXXX: chunkBytes is protected by tdc->lock which we
272 * can't grab here, due to lock ordering with afs_xdcache.
273 * So, disable this shortcut for now. -- kolya 2001-10-13
275 /* shortcut: big win for little files */
276 /* tlen -= tdc->f.chunkBytes;
283 if (j == NCHUNKSATONCE)
290 index = afs_dvnextTbl[index];
292 ReleaseWriteLock(&afs_xdcache);
294 /* this guy writes chunks, puts back dcache structs, and bumps newDV */
295 /* "moredata" just says "there are more dirty chunks yet to come".
299 afs_CacheStoreVCache(dcList, avc, areq, sync,
300 minj, high, moredata,
301 &newDV, &maxStoredLength);
302 /* Release any zero-length dcache entries in our interval
303 * that we locked but didn't store back above.
305 for (j = 0; j <= high; j++) {
308 osi_Assert(tdc->f.chunkBytes == 0);
309 ReleaseSharedLock(&tdc->lock);
315 minj += NCHUNKSATONCE;
316 } while (!code && moredata);
318 UpgradeSToWLock(&avc->lock, 29);
320 /* send a trivial truncation store if did nothing else */
323 * Call StoreMini if we haven't written enough data to extend the
324 * file at the fileserver to the client's notion of the file length.
326 if ((avc->f.truncPos != AFS_NOTRUNC)
327 || ((avc->f.states & CExtendedFile)
328 && (maxStoredLength < avc->f.m.Length))) {
329 code = afs_StoreMini(avc, areq);
331 hadd32(newDV, 1); /* just bumped here, too */
333 avc->f.states &= ~CExtendedFile;
337 * Finally, turn off DWriting, turn on DFEntryMod,
338 * update f.versionNo.
339 * A lot of this could be integrated into the loop above
350 NCHUNKSATONCE * sizeof(struct dcache *));
352 /* overkill, but it gets the lock in case GetDSlot needs it */
353 ObtainWriteLock(&afs_xdcache, 285);
355 for (j = 0, safety = 0, index = afs_dvhashTbl[hash];
356 index != NULLIDX && safety < afs_cacheFiles + 2;) {
358 if (afs_indexUnique[index] == avc->f.fid.Fid.Unique) {
359 tdc = afs_GetValidDSlot(index);
360 ReleaseReadLock(&tdc->tlock);
362 if (!FidCmp(&tdc->f.fid, &avc->f.fid)
363 && tdc->f.chunk >= minj) {
364 off = tdc->f.chunk - minj;
365 if (off < NCHUNKSATONCE) {
366 /* this is the file, and the correct chunk range */
367 if (j >= NCHUNKSATONCE)
369 ("Too many dcache entries in range\n");
374 if (j == NCHUNKSATONCE)
382 index = afs_dvnextTbl[index];
384 ReleaseWriteLock(&afs_xdcache);
386 for (i = 0; i < j; i++) {
387 /* Iterate over the dcache entries we collected above */
389 ObtainSharedLock(&tdc->lock, 677);
391 /* was code here to clear IFDataMod, but it should only be done
392 * in storedcache and storealldcache.
394 /* Only increase DV if we had up-to-date data to start with.
395 * Otherwise, we could be falsely upgrading an old chunk
396 * (that we never read) into one labelled with the current
397 * DV #. Also note that we check that no intervening stores
398 * occurred, otherwise we might mislabel cache information
399 * for a chunk that we didn't store this time
401 /* Don't update the version number if it's not yet set. */
402 if (!hsame(tdc->f.versionNo, h_unset)
403 && hcmp(tdc->f.versionNo, oldDV) >= 0) {
405 if ((!(afs_dvhack || foreign)
406 && hsame(avc->f.m.DataVersion, newDV))
407 || ((afs_dvhack || foreign)
408 && (origCBs == afs_allCBs))) {
409 /* no error, this is the DV */
411 UpgradeSToWLock(&tdc->lock, 678);
412 hset(tdc->f.versionNo, avc->f.m.DataVersion);
413 tdc->dflags |= DFEntryMod;
414 ConvertWToSLock(&tdc->lock);
418 ReleaseSharedLock(&tdc->lock);
422 minj += NCHUNKSATONCE;
429 * Invalidate chunks after an error for ccores files since
430 * afs_inactive won't be called for these and they won't be
431 * invalidated. Also discard data if it's a permanent error from the
434 if (areq->permWriteError || (avc->f.states & CCore)) {
435 afs_InvalidateAllSegments(avc);
438 afs_Trace3(afs_iclSetp, CM_TRACE_STOREALLDONE, ICL_TYPE_POINTER, avc,
439 ICL_TYPE_INT32, avc->f.m.Length, ICL_TYPE_INT32, code);
440 /* would like a Trace5, but it doesn't exist... */
441 afs_Trace3(afs_iclSetp, CM_TRACE_AVCLOCKER, ICL_TYPE_POINTER, avc,
442 ICL_TYPE_INT32, avc->lock.wait_states, ICL_TYPE_INT32,
443 avc->lock.excl_locked);
444 afs_Trace4(afs_iclSetp, CM_TRACE_AVCLOCKEE, ICL_TYPE_POINTER, avc,
445 ICL_TYPE_INT32, avc->lock.wait_states, ICL_TYPE_INT32,
446 avc->lock.readers_reading, ICL_TYPE_INT32,
447 avc->lock.num_waiting);
450 * Finally, if updated DataVersion matches newDV, we did all of the
451 * stores. If mapDV indicates that the page cache was flushed up
452 * to when we started the store, then we can relabel them as flushed
453 * as recently as newDV.
454 * Turn off CDirty bit because the stored data is now in sync with server.
456 if (code == 0 && hcmp(avc->mapDV, oldDV) >= 0) {
457 if ((!(afs_dvhack || foreign) && hsame(avc->f.m.DataVersion, newDV))
458 || ((afs_dvhack || foreign) && (origCBs == afs_allCBs))) {
459 hset(avc->mapDV, newDV);
460 avc->f.states &= ~CDirty;
463 osi_FreeLargeSpace(dcList);
465 /* If not the final write a temporary error is ok. */
466 if (code && !areq->permWriteError && !(sync & AFS_LASTSTORE))
471 } /*afs_StoreAllSegments (new 03/02/94) */
475 * afs_InvalidateAllSegments
478 * Invalidates all chunks for a given file
481 * avc : Pointer to vcache entry.
484 * For example, called after an error has been detected. Called
485 * with avc write-locked, and afs_xdcache unheld.
489 afs_InvalidateAllSegments(struct vcache *avc)
494 struct dcache **dcList;
495 int i, dcListMax, dcListCount;
497 AFS_STATCNT(afs_InvalidateAllSegments);
498 afs_Trace2(afs_iclSetp, CM_TRACE_INVALL, ICL_TYPE_POINTER, avc,
499 ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->f.m.Length));
500 hash = DVHash(&avc->f.fid);
501 avc->f.truncPos = AFS_NOTRUNC; /* don't truncate later */
502 avc->f.states &= ~CExtendedFile; /* not any more */
503 ObtainWriteLock(&afs_xcbhash, 459);
504 afs_DequeueCallback(avc);
505 avc->f.states &= ~(CStatd | CDirty); /* mark status information as bad, too */
506 ReleaseWriteLock(&afs_xcbhash);
507 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
508 osi_dnlc_purgedp(avc);
509 /* Blow away pages; for now, only for Solaris */
510 #if (defined(AFS_SUN5_ENV))
511 if (WriteLocked(&avc->lock))
512 osi_ReleaseVM(avc, (afs_ucred_t *)0);
515 * Block out others from screwing with this table; is a read lock
518 ObtainWriteLock(&afs_xdcache, 286);
521 for (index = afs_dvhashTbl[hash]; index != NULLIDX;) {
522 if (afs_indexUnique[index] == avc->f.fid.Fid.Unique) {
523 tdc = afs_GetValidDSlot(index);
524 ReleaseReadLock(&tdc->tlock);
525 if (!FidCmp(&tdc->f.fid, &avc->f.fid))
529 index = afs_dvnextTbl[index];
532 dcList = osi_Alloc(dcListMax * sizeof(struct dcache *));
535 for (index = afs_dvhashTbl[hash]; index != NULLIDX;) {
536 if (afs_indexUnique[index] == avc->f.fid.Fid.Unique) {
537 tdc = afs_GetValidDSlot(index);
538 ReleaseReadLock(&tdc->tlock);
539 if (!FidCmp(&tdc->f.fid, &avc->f.fid)) {
540 /* same file? we'll zap it */
541 if (afs_indexFlags[index] & IFDataMod) {
542 afs_stats_cmperf.cacheCurrDirtyChunks--;
543 /* don't write it back */
544 afs_indexFlags[index] &= ~IFDataMod;
546 afs_indexFlags[index] &= ~IFAnyPages;
547 if (dcListCount < dcListMax)
548 dcList[dcListCount++] = tdc;
555 index = afs_dvnextTbl[index];
557 ReleaseWriteLock(&afs_xdcache);
559 for (i = 0; i < dcListCount; i++) {
562 ObtainWriteLock(&tdc->lock, 679);
564 if (vType(avc) == VDIR)
566 ReleaseWriteLock(&tdc->lock);
570 osi_Free(dcList, dcListMax * sizeof(struct dcache *));
577 * Extend a cache file
579 * \param avc pointer to vcache to extend data for
580 * \param alen Length to extend file to
583 * \note avc must be write locked. May release and reobtain avc and GLOCK
586 afs_ExtendSegments(struct vcache *avc, afs_size_t alen, struct vrequest *areq)
588 afs_size_t offset, toAdd;
589 struct osi_file *tfile;
594 zeros = afs_osi_Alloc(AFS_PAGESIZE);
597 memset(zeros, 0, AFS_PAGESIZE);
599 while (avc->f.m.Length < alen) {
600 tdc = afs_ObtainDCacheForWriting(avc, avc->f.m.Length, alen - avc->f.m.Length, areq, 0);
606 toAdd = alen - avc->f.m.Length;
608 offset = avc->f.m.Length - AFS_CHUNKTOBASE(tdc->f.chunk);
609 if (offset + toAdd > AFS_CHUNKTOSIZE(tdc->f.chunk)) {
610 toAdd = AFS_CHUNKTOSIZE(tdc->f.chunk) - offset;
612 tfile = afs_CFileOpen(&tdc->f.inode);
613 while(tdc->validPos < avc->f.m.Length + toAdd) {
616 towrite = (avc->f.m.Length + toAdd) - tdc->validPos;
617 if (towrite > AFS_PAGESIZE) towrite = AFS_PAGESIZE;
619 code = afs_CFileWrite(tfile,
620 tdc->validPos - AFS_CHUNKTOBASE(tdc->f.chunk),
622 tdc->validPos += towrite;
624 afs_CFileClose(tfile);
625 afs_AdjustSize(tdc, offset + toAdd );
626 avc->f.m.Length += toAdd;
627 ReleaseWriteLock(&tdc->lock);
631 afs_osi_Free(zeros, AFS_PAGESIZE);
636 * afs_TruncateAllSegments
639 * Truncate a cache file.
642 * avc : Ptr to vcache entry to truncate.
643 * alen : Number of bytes to make the file.
644 * areq : Ptr to request structure.
647 * Called with avc write-locked; in VFS40 systems, pvnLock is also
651 afs_TruncateAllSegments(struct vcache *avc, afs_size_t alen,
652 struct vrequest *areq, afs_ucred_t *acred)
660 struct dcache **tdcArray;
662 AFS_STATCNT(afs_TruncateAllSegments);
663 avc->f.m.Date = osi_Time();
664 afs_Trace3(afs_iclSetp, CM_TRACE_TRUNCALL, ICL_TYPE_POINTER, avc,
665 ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->f.m.Length),
666 ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(alen));
667 if (alen >= avc->f.m.Length) {
669 * Special speedup since Sun's vm extends the file this way;
670 * we've never written to the file thus we can just set the new
671 * length and avoid the needless calls below.
672 * Also used for ftruncate calls which can extend the file.
673 * To completely minimize the possible extra StoreMini RPC, we really
674 * should keep the ExtendedPos as well and clear this flag if we
675 * truncate below that value before we store the file back.
677 avc->f.states |= CExtendedFile;
678 avc->f.m.Length = alen;
681 #if (defined(AFS_SUN5_ENV))
683 /* Zero unused portion of last page */
684 osi_VM_PreTruncate(avc, alen, acred);
688 #if (defined(AFS_SUN5_ENV))
689 ObtainWriteLock(&avc->vlock, 546);
690 avc->activeV++; /* Block new getpages */
691 ReleaseWriteLock(&avc->vlock);
694 ReleaseWriteLock(&avc->lock);
697 /* Flush pages beyond end-of-file. */
698 osi_VM_Truncate(avc, alen, acred);
701 ObtainWriteLock(&avc->lock, 79);
703 avc->f.m.Length = alen;
705 if (alen < avc->f.truncPos)
706 avc->f.truncPos = alen;
707 code = DVHash(&avc->f.fid);
709 /* block out others from screwing with this table */
710 ObtainWriteLock(&afs_xdcache, 287);
713 for (index = afs_dvhashTbl[code]; index != NULLIDX;) {
714 if (afs_indexUnique[index] == avc->f.fid.Fid.Unique) {
715 tdc = afs_GetValidDSlot(index);
716 ReleaseReadLock(&tdc->tlock);
717 if (!FidCmp(&tdc->f.fid, &avc->f.fid))
721 index = afs_dvnextTbl[index];
724 /* Now allocate space where we can save those dcache entries, and
725 * do a second pass over them.. Since we're holding xdcache, it
726 * shouldn't be changing.
728 tdcArray = osi_Alloc(dcCount * sizeof(struct dcache *));
731 for (index = afs_dvhashTbl[code]; index != NULLIDX;) {
732 if (afs_indexUnique[index] == avc->f.fid.Fid.Unique) {
733 tdc = afs_GetValidDSlot(index);
734 ReleaseReadLock(&tdc->tlock);
735 if (!FidCmp(&tdc->f.fid, &avc->f.fid)) {
736 /* same file, and modified, we'll store it back */
737 if (dcPos < dcCount) {
738 tdcArray[dcPos++] = tdc;
746 index = afs_dvnextTbl[index];
749 ReleaseWriteLock(&afs_xdcache);
751 /* Now we loop over the array of dcache entries and truncate them */
752 for (index = 0; index < dcPos; index++) {
753 struct osi_file *tfile;
755 tdc = tdcArray[index];
757 newSize = alen - AFS_CHUNKTOBASE(tdc->f.chunk);
760 ObtainSharedLock(&tdc->lock, 672);
761 if (newSize < tdc->f.chunkBytes && newSize < MAX_AFS_UINT32) {
762 UpgradeSToWLock(&tdc->lock, 673);
763 tfile = afs_CFileOpen(&tdc->f.inode);
764 afs_CFileTruncate(tfile, (afs_int32)newSize);
765 afs_CFileClose(tfile);
766 afs_AdjustSize(tdc, (afs_int32)newSize);
767 if (alen < tdc->validPos) {
768 if (alen < AFS_CHUNKTOBASE(tdc->f.chunk))
771 tdc->validPos = alen;
773 ConvertWToSLock(&tdc->lock);
775 ReleaseSharedLock(&tdc->lock);
779 osi_Free(tdcArray, dcCount * sizeof(struct dcache *));
781 #if (defined(AFS_SUN5_ENV))
782 ObtainWriteLock(&avc->vlock, 547);
783 if (--avc->activeV == 0 && (avc->vstates & VRevokeWait)) {
784 avc->vstates &= ~VRevokeWait;
785 afs_osi_Wakeup((char *)&avc->vstates);
787 ReleaseWriteLock(&avc->vlock);