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
10 #include <afsconfig.h>
11 #include "afs/param.h"
13 #include "afs/sysincludes.h" /* Standard vendor system headers */
14 #ifndef AFS_LINUX22_ENV
15 #include "rpc/types.h"
23 #endif /* AFS_ALPHA_ENV */
24 #include "afsincludes.h" /* Afs-based standard headers */
25 #include "afs/afs_stats.h" /* statistics */
26 #include "afs_prototypes.h"
28 extern int cacheDiskType;
33 FillStoreStats(int code, int idx, osi_timeval_t *xferStartTime,
34 afs_size_t bytesToXfer, afs_size_t bytesXferred)
36 struct afs_stats_xferData *xferP;
37 osi_timeval_t xferStopTime;
38 osi_timeval_t elapsedTime;
40 xferP = &(afs_stats_cmfullperf.rpc.fsXferTimes[idx]);
41 osi_GetuTime(&xferStopTime);
44 (xferP->numSuccesses)++;
45 afs_stats_XferSumBytes[idx] += bytesXferred;
46 (xferP->sumBytes) += (afs_stats_XferSumBytes[idx] >> 10);
47 afs_stats_XferSumBytes[idx] &= 0x3FF;
48 if (bytesXferred < xferP->minBytes)
49 xferP->minBytes = bytesXferred;
50 if (bytesXferred > xferP->maxBytes)
51 xferP->maxBytes = bytesXferred;
54 * Tally the size of the object. Note: we tally the actual size,
55 * NOT the number of bytes that made it out over the wire.
57 if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET0) (xferP->count[0])++;
58 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET1) (xferP->count[1])++;
59 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET2) (xferP->count[2])++;
60 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET3) (xferP->count[3])++;
61 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET4) (xferP->count[4])++;
62 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET5) (xferP->count[5])++;
63 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET6) (xferP->count[6])++;
64 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET7) (xferP->count[7])++;
68 afs_stats_GetDiff(elapsedTime, (*xferStartTime), xferStopTime);
69 afs_stats_AddTo((xferP->sumTime), elapsedTime);
70 afs_stats_SquareAddTo((xferP->sqrTime), elapsedTime);
71 if (afs_stats_TimeLessThan(elapsedTime, (xferP->minTime))) {
72 afs_stats_TimeAssign((xferP->minTime), elapsedTime);
74 if (afs_stats_TimeGreaterThan(elapsedTime, (xferP->maxTime))) {
75 afs_stats_TimeAssign((xferP->maxTime), elapsedTime);
79 #endif /* AFS_NOSTATS */
81 /* rock and operations for RX_FILESERVER */
86 rxfs_storeUfsPrepare(void *r, afs_uint32 size, afs_uint32 *tlen)
88 *tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
93 rxfs_storeMemPrepare(void *r, afs_uint32 size, afs_uint32 *tlen)
96 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *) r;
98 *tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
100 code = rx_WritevAlloc(v->call, v->tiov, &v->tnio, RX_MAXIOVECS, *tlen);
103 code = rx_Error(v->call);
115 rxfs_storeUfsRead(void *r, struct osi_file *tfile, afs_uint32 offset,
116 afs_uint32 tlen, afs_uint32 *bytesread)
119 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
122 code = afs_osi_Read(tfile, -1, v->tbuffer, tlen);
128 #if defined(KERNEL_HAVE_UERROR)
136 rxfs_storeMemRead(void *r, struct osi_file *tfile, afs_uint32 offset,
137 afs_uint32 tlen, afs_uint32 *bytesread)
140 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
141 struct memCacheEntry *mceP = (struct memCacheEntry *)tfile;
144 code = afs_MemReadvBlk(mceP, offset, v->tiov, v->tnio, tlen);
152 rxfs_storeMemWrite(void *r, afs_uint32 l, afs_uint32 *byteswritten)
155 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
158 code = rx_Writev(v->call, v->tiov, v->tnio, l);
161 code = rx_Error(v->call);
162 return (code ? code : -33);
164 *byteswritten = code;
169 rxfs_storeUfsWrite(void *r, afs_uint32 l, afs_uint32 *byteswritten)
172 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
175 code = rx_Write(v->call, v->tbuffer, l);
176 /* writing 0 bytes will
177 * push a short packet. Is that really what we want, just because the
178 * data didn't come back from the disk yet? Let's try it and see. */
181 code = rx_Error(v->call);
182 return (code ? code : -33);
184 *byteswritten = code;
189 rxfs_storePadd(void *rock, afs_uint32 size)
193 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)rock;
196 v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
197 memset(v->tbuffer, 0, AFS_LRALLOCSIZ);
200 tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
202 code = rx_Write(v->call, v->tbuffer, tlen);
206 return -33; /* XXX */
213 rxfs_storeStatus(void *rock)
215 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)rock;
217 if (rx_GetRemoteStatus(v->call) & 1)
223 rxfs_storeClose(void *r, struct AFSFetchStatus *OutStatus, int *doProcessFS)
226 struct AFSVolSync tsync;
227 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
232 #ifdef AFS_64BIT_CLIENT
234 code = EndRXAFS_StoreData64(v->call, OutStatus, &tsync);
237 code = EndRXAFS_StoreData(v->call, OutStatus, &tsync);
240 *doProcessFS = 1; /* Flag to run afs_ProcessFS() later on */
246 rxfs_storeDestroy(void **r, afs_int32 error)
248 afs_int32 code = error;
249 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)*r;
254 code = rx_EndCall(v->call, error);
260 osi_FreeLargeSpace(v->tbuffer);
262 osi_FreeSmallSpace(v->tiov);
263 osi_FreeSmallSpace(v);
268 struct storeOps rxfs_storeUfsOps = {
269 .prepare = rxfs_storeUfsPrepare,
270 .read = rxfs_storeUfsRead,
271 .write = rxfs_storeUfsWrite,
272 .status = rxfs_storeStatus,
273 .padd = rxfs_storePadd,
274 .close = rxfs_storeClose,
275 .destroy = rxfs_storeDestroy,
279 struct storeOps rxfs_storeMemOps = {
280 .prepare = rxfs_storeMemPrepare,
281 .read = rxfs_storeMemRead,
282 .write = rxfs_storeMemWrite,
283 .status = rxfs_storeStatus,
284 .padd = rxfs_storePadd,
285 .close = rxfs_storeClose,
286 .destroy = rxfs_storeDestroy
290 rxfs_storeInit(struct vcache *avc, struct afs_conn *tc, afs_size_t base,
291 afs_size_t bytes, afs_size_t length,
292 int sync, struct storeOps **ops, void **rock)
295 struct rxfs_storeVariables *v;
300 v = (struct rxfs_storeVariables *) osi_AllocSmallSpace(sizeof(struct rxfs_storeVariables));
302 osi_Panic("rxfs_storeInit: osi_AllocSmallSpace returned NULL\n");
303 memset(v, 0, sizeof(struct rxfs_storeVariables));
305 v->InStatus.ClientModTime = avc->f.m.Date;
306 v->InStatus.Mask = AFS_SETMODTIME;
309 v->InStatus.Mask |= AFS_FSYNC;
311 v->call = rx_NewCall(tc->id);
313 #ifdef AFS_64BIT_CLIENT
314 if (!afs_serverHasNo64Bit(tc))
315 code = StartRXAFS_StoreData64(
316 v->call, (struct AFSFid*)&avc->f.fid.Fid,
317 &v->InStatus, base, bytes, length);
319 if (length > 0xFFFFFFFF)
322 afs_int32 t1 = base, t2 = bytes, t3 = length;
323 code = StartRXAFS_StoreData(v->call,
324 (struct AFSFid *) &avc->f.fid.Fid,
325 &v->InStatus, t1, t2, t3);
327 #else /* AFS_64BIT_CLIENT */
328 code = StartRXAFS_StoreData(v->call, (struct AFSFid *)&avc->f.fid.Fid,
329 &v->InStatus, base, bytes, length);
330 #endif /* AFS_64BIT_CLIENT */
335 osi_FreeSmallSpace(v);
338 if (cacheDiskType == AFS_FCACHE_TYPE_UFS) {
339 v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
342 ("rxfs_storeInit: osi_AllocLargeSpace for iovecs returned NULL\n");
343 *ops = (struct storeOps *) &rxfs_storeUfsOps;
345 v->tiov = osi_AllocSmallSpace(sizeof(struct iovec) * RX_MAXIOVECS);
348 ("rxfs_storeInit: osi_AllocSmallSpace for iovecs returned NULL\n");
349 *ops = (struct storeOps *) &rxfs_storeMemOps;
351 /* do this at a higher level now -- it's a parameter */
352 /* for now, only do 'continue from close' code if file fits in one
353 * chunk. Could clearly do better: if only one modified chunk
354 * then can still do this. can do this on *last* modified chunk */
355 length = avc->f.m.Length - 1; /* byte position of last byte we'll store */
357 if (AFS_CHUNK(length) != 0)
370 afs_GenericStoreProc(struct storeOps *ops, void *rock,
371 struct dcache *tdc, int *shouldwake,
372 afs_size_t *bytesXferred)
374 struct rxfs_storeVariables *svar = rock;
375 afs_uint32 tlen, bytesread, byteswritten;
379 struct osi_file *tfile;
381 size = tdc->f.chunkBytes;
383 tfile = afs_CFileOpen(&tdc->f.inode);
386 code = (*ops->prepare)(rock, size, &tlen);
390 code = (*ops->read)(rock, tfile, offset, tlen, &bytesread);
395 code = (*ops->write)(rock, tlen, &byteswritten);
399 *bytesXferred += byteswritten;
400 #endif /* AFS_NOSTATS */
405 * if file has been locked on server, can allow
408 if (shouldwake && *shouldwake && ((*ops->status)(rock) == 0)) {
409 *shouldwake = 0; /* only do this once */
410 afs_wakeup(svar->vcache);
413 afs_CFileClose(tfile);
418 unsigned int storeallmissing = 0;
420 * Called for each chunk upon store.
422 * \param avc Ptr to the vcache entry of the file being stored.
423 * \param dclist pointer to the list of dcaches
424 * \param bytes total number of bytes for the current operation
425 * \param anewDV Ptr to the dataversion after store
426 * \param doProcessFS pointer to the "do process FetchStatus" flag
427 * \param OutStatus pointer to the FetchStatus as returned by the fileserver
428 * \param nchunks number of dcaches to consider
429 * \param nomore copy of the "no more data" flag
430 * \param ops pointer to the block of storeOps to be used for this operation
431 * \param rock pointer to the opaque protocol-specific data of this operation
434 afs_CacheStoreDCaches(struct vcache *avc, struct dcache **dclist,
438 struct AFSFetchStatus *OutStatus,
441 struct storeOps *ops, void *rock)
443 int *shouldwake = NULL;
446 afs_size_t bytesXferred;
449 osi_timeval_t xferStartTime; /*FS xfer start time */
450 afs_size_t bytesToXfer = 10000; /* # bytes to xfer */
451 #endif /* AFS_NOSTATS */
454 for (i = 0; i < nchunks && !code; i++) {
456 struct dcache *tdc = dclist[i];
457 afs_int32 size = tdc->f.chunkBytes;
459 afs_warn("afs: missing dcache!\n");
461 continue; /* panic? */
463 afs_Trace4(afs_iclSetp, CM_TRACE_STOREALL2, ICL_TYPE_POINTER, avc,
464 ICL_TYPE_INT32, tdc->f.chunk, ICL_TYPE_INT32, tdc->index,
465 ICL_TYPE_INT32, afs_inode2trace(&tdc->f.inode));
468 if (avc->asynchrony == -1) {
469 if (afs_defaultAsynchrony > (bytes - stored))
470 shouldwake = &nomore;
472 else if ((afs_uint32) avc->asynchrony >= (bytes - stored))
473 shouldwake = &nomore;
476 afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
477 ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,
478 ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, size);
480 AFS_STATCNT(CacheStoreProc);
482 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREDATA);
483 avc->f.truncPos = AFS_NOTRUNC;
486 * In this case, size is *always* the amount of data we'll be trying
491 osi_GetuTime(&xferStartTime);
492 #endif /* AFS_NOSTATS */
496 code = (*ops->storeproc)(ops, rock, tdc, shouldwake,
499 code = afs_GenericStoreProc(ops, rock, tdc, shouldwake,
502 afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
503 ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,
504 ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, size);
507 FillStoreStats(code, AFS_STATS_FS_XFERIDX_STOREDATA,
508 &xferStartTime, bytesToXfer, bytesXferred);
509 #endif /* AFS_NOSTATS */
511 if ((tdc->f.chunkBytes < afs_OtherCSize)
512 && (i < (nchunks - 1)) && code == 0) {
513 code = (*ops->padd)(rock, afs_OtherCSize - tdc->f.chunkBytes);
515 stored += tdc->f.chunkBytes;
516 /* ideally, I'd like to unlock the dcache and turn
517 * off the writing bit here, but that would
518 * require being able to retry StoreAllSegments in
519 * the event of a failure. It only really matters
520 * if user can't read from a 'locked' dcache or
521 * one which has the writing bit turned on. */
525 code = (*ops->close)(rock, OutStatus, doProcessFS);
532 code = (*ops->destroy)(&rock, code);
536 #define lmin(a,b) (((a) < (b)) ? (a) : (b))
540 * \param dclist pointer to the list of dcaches
541 * \param avc Ptr to the vcache entry.
542 * \param areq Ptr to the request structure
543 * \param sync sync flag
544 * \param minj the chunk offset for this call
545 * \param high index of last dcache to store
546 * \param moredata the moredata flag
547 * \param anewDV Ptr to the dataversion after store
548 * \param amaxStoredLength Ptr to the amount of that is actually stored
550 * \note Environment: Nothing interesting.
553 afs_CacheStoreVCache(struct dcache **dcList, struct vcache *avc,
554 struct vrequest *areq, int sync,
555 unsigned int minj, unsigned int high,
556 unsigned int moredata,
557 afs_hyper_t *anewDV, afs_size_t *amaxStoredLength)
560 struct storeOps *ops;
564 struct AFSFetchStatus OutStatus;
566 afs_size_t base, bytes, length;
568 unsigned int first = 0;
571 for (bytes = 0, j = 0; !code && j <= high; j++) {
573 ObtainSharedLock(&(dcList[j]->lock), 629);
576 bytes += dcList[j]->f.chunkBytes;
577 if ((dcList[j]->f.chunkBytes < afs_OtherCSize)
578 && (dcList[j]->f.chunk - minj < high)
580 int sbytes = afs_OtherCSize - dcList[j]->f.chunkBytes;
584 if (bytes && (j == high || !dcList[j + 1])) {
586 struct dcache **dclist = &dcList[first];
587 /* base = AFS_CHUNKTOBASE(dcList[first]->f.chunk); */
588 base = AFS_CHUNKTOBASE(first + minj);
591 * take a list of dcache structs and send them all off to the server
592 * the list must be in order, and the chunks contiguous.
593 * Note - there is no locking done by this code currently. For
594 * safety's sake, xdcache could be locked over the entire call.
595 * However, that pretty well ties up all the threads. Meantime, all
596 * the chunks _MUST_ have their refcounts bumped.
597 * The writes done before a store back will clear setuid-ness
599 * We can permit CacheStoreProc to wake up the user process IFF we
600 * are doing the last RPC for this close, ie, storing back the last
601 * set of contiguous chunks of a file.
604 nchunks = 1 + j - first;
605 nomore = !(moredata || (j != high));
606 length = lmin(avc->f.m.Length, avc->f.truncPos);
607 afs_Trace4(afs_iclSetp, CM_TRACE_STOREDATA64,
608 ICL_TYPE_FID, &avc->f.fid.Fid, ICL_TYPE_OFFSET,
609 ICL_HANDLE_OFFSET(base), ICL_TYPE_OFFSET,
610 ICL_HANDLE_OFFSET(bytes), ICL_TYPE_OFFSET,
611 ICL_HANDLE_OFFSET(length));
614 tc = afs_Conn(&avc->f.fid, areq, 0);
616 #ifdef AFS_64BIT_CLIENT
619 code = rxfs_storeInit(avc, tc, base, bytes, length,
622 code = afs_CacheStoreDCaches(avc, dclist, bytes, anewDV,
623 &doProcessFS, &OutStatus,
624 nchunks, nomore, ops, rock);
627 #ifdef AFS_64BIT_CLIENT
628 if (code == RXGEN_OPCODE && !afs_serverHasNo64Bit(tc)) {
629 afs_serverSetNo64Bit(tc);
632 #endif /* AFS_64BIT_CLIENT */
634 (tc, code, &avc->f.fid, areq,
635 AFS_STATS_FS_RPCIDX_STOREDATA, SHARED_LOCK,
638 /* put back all remaining locked dcache entries */
639 for (i = 0; i < nchunks; i++) {
640 struct dcache *tdc = dclist[i];
642 if (afs_indexFlags[tdc->index] & IFDataMod) {
644 * LOCKXXX -- should hold afs_xdcache(W) when
645 * modifying afs_indexFlags.
647 afs_indexFlags[tdc->index] &= ~IFDataMod;
648 afs_stats_cmperf.cacheCurrDirtyChunks--;
649 afs_indexFlags[tdc->index] &= ~IFDirtyPages;
650 if (sync & AFS_VMSYNC_INVAL) {
651 /* since we have invalidated all the pages of this
652 ** vnode by calling osi_VM_TryToSmush, we can
653 ** safely mark this dcache entry as not having
654 ** any pages. This vnode now becomes eligible for
655 ** reclamation by getDownD.
657 afs_indexFlags[tdc->index] &= ~IFAnyPages;
661 UpgradeSToWLock(&tdc->lock, 628);
662 tdc->f.states &= ~DWriting; /* correct? */
663 tdc->dflags |= DFEntryMod;
664 ReleaseWriteLock(&tdc->lock);
666 /* Mark the entry as released */
671 /* Now copy out return params */
672 UpgradeSToWLock(&avc->lock, 28); /* keep out others for a while */
673 afs_ProcessFS(avc, &OutStatus, areq);
674 /* Keep last (max) size of file on server to see if
675 * we need to call afs_StoreMini to extend the file.
678 *amaxStoredLength = OutStatus.Length;
679 ConvertWToSLock(&avc->lock);
684 for (j++; j <= high; j++) {
686 ReleaseSharedLock(&(dcList[j]->lock));
687 afs_PutDCache(dcList[j]);
688 /* Releasing entry */
694 afs_Trace2(afs_iclSetp, CM_TRACE_STOREALLDCDONE,
695 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code);
703 /* rock and operations for RX_FILESERVER */
705 struct rxfs_fetchVariables {
706 struct rx_call *call;
710 afs_int32 hasNo64bit;
716 rxfs_fetchUfsRead(void *r, afs_uint32 size, afs_uint32 *bytesread)
720 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
723 tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
725 code = rx_Read(v->call, v->tbuffer, tlen);
734 rxfs_fetchMemRead(void *r, afs_uint32 tlen, afs_uint32 *bytesread)
737 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
741 code = rx_Readv(v->call, v->iov, &v->nio, RX_MAXIOVECS, tlen);
751 rxfs_fetchMemWrite(void *r, struct osi_file *fP,
752 afs_uint32 offset, afs_uint32 tlen,
753 afs_uint32 *byteswritten)
756 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
757 struct memCacheEntry *mceP = (struct memCacheEntry *)fP;
759 code = afs_MemWritevBlk(mceP, offset, v->iov, v->nio, tlen);
763 *byteswritten = code;
768 rxfs_fetchUfsWrite(void *r, struct osi_file *fP,
769 afs_uint32 offset, afs_uint32 tlen,
770 afs_uint32 *byteswritten)
773 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
775 code = afs_osi_Write(fP, -1, v->tbuffer, tlen);
779 *byteswritten = code;
785 rxfs_fetchClose(void *r, struct vcache *avc, struct dcache * adc,
786 struct afs_FetchOutput *o)
788 afs_int32 code, code1 = 0;
789 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
795 #ifdef AFS_64BIT_CLIENT
797 code = EndRXAFS_FetchData64(v->call, &o->OutStatus, &o->CallBack,
801 code = EndRXAFS_FetchData(v->call, &o->OutStatus, &o->CallBack,
803 code1 = rx_EndCall(v->call, code);
814 rxfs_fetchDestroy(void **r, afs_int32 error)
816 afs_int32 code = error;
817 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)*r;
822 code = rx_EndCall(v->call, error);
828 osi_FreeLargeSpace(v->tbuffer);
830 osi_FreeSmallSpace(v->iov);
831 osi_FreeSmallSpace(v);
836 rxfs_fetchMore(void *r, afs_int32 *length, afs_uint32 *moredata)
839 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
842 * The fetch protocol is extended for the AFS/DFS translator
843 * to allow multiple blocks of data, each with its own length,
844 * to be returned. As long as the top bit is set, there are more
847 * We do not do this for AFS file servers because they sometimes
848 * return large negative numbers as the transfer size.
852 code = rx_Read(v->call, (void *)length, sizeof(afs_int32));
854 *length = ntohl(*length);
855 if (code != sizeof(afs_int32)) {
856 code = rx_Error(v->call);
858 return (code ? code : -1); /* try to return code, not -1 */
861 *moredata = *length & 0x80000000;
862 *length &= ~0x80000000;
867 struct fetchOps rxfs_fetchUfsOps = {
876 struct fetchOps rxfs_fetchMemOps = {
885 rxfs_fetchInit(struct afs_conn *tc, struct vcache *avc, afs_offs_t base,
886 afs_uint32 size, afs_int32 *alength, struct dcache *adc,
887 struct osi_file *fP, struct fetchOps **ops, void **rock)
889 struct rxfs_fetchVariables *v;
890 int code = 0, code1 = 0;
891 #ifdef AFS_64BIT_CLIENT
892 afs_uint32 length_hi = 0;
894 afs_uint32 length, bytes;
896 v = (struct rxfs_fetchVariables *) osi_AllocSmallSpace(sizeof(struct rxfs_fetchVariables));
898 osi_Panic("rxfs_fetchInit: osi_AllocSmallSpace returned NULL\n");
899 memset(v, 0, sizeof(struct rxfs_fetchVariables));
902 v->call = rx_NewCall(tc->id);
905 #ifdef AFS_64BIT_CLIENT
906 afs_size_t length64; /* as returned from server */
907 if (!afs_serverHasNo64Bit(tc)) {
908 afs_uint64 llbytes = size;
910 code = StartRXAFS_FetchData64(v->call, (struct AFSFid *) &avc->f.fid.Fid,
914 afs_Trace2(afs_iclSetp, CM_TRACE_FETCH64CODE,
915 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code);
917 bytes = rx_Read(v->call, (char *)&length_hi, sizeof(afs_int32));
919 if (bytes == sizeof(afs_int32)) {
920 length_hi = ntohl(length_hi);
922 code = rx_Error(v->call);
924 code1 = rx_EndCall(v->call, code);
930 if (code == RXGEN_OPCODE || afs_serverHasNo64Bit(tc)) {
931 if (base > 0x7FFFFFFF) {
938 v->call = rx_NewCall(tc->id);
940 StartRXAFS_FetchData(
941 v->call, (struct AFSFid*)&avc->f.fid.Fid,
945 afs_serverSetNo64Bit(tc);
949 bytes = rx_Read(v->call, (char *)&length, sizeof(afs_int32));
951 if (bytes == sizeof(afs_int32))
952 length = ntohl(length);
955 code = rx_Error(v->call);
956 code1 = rx_EndCall(v->call, code);
961 FillInt64(length64, length_hi, length);
962 afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64LENG,
963 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
965 ICL_HANDLE_OFFSET(length64));
967 #else /* AFS_64BIT_CLIENT */
969 code = StartRXAFS_FetchData(v->call, (struct AFSFid *)&avc->f.fid.Fid,
975 rx_Read(v->call, (char *)&length, sizeof(afs_int32));
977 if (bytes == sizeof(afs_int32)) {
978 *alength = ntohl(length);
980 code = rx_Error(v->call);
981 code1 = rx_EndCall(v->call, code);
985 #endif /* AFS_64BIT_CLIENT */
993 osi_FreeSmallSpace(v);
996 if (cacheDiskType == AFS_FCACHE_TYPE_UFS) {
997 v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
999 osi_Panic("rxfs_fetchInit: osi_AllocLargeSpace for iovecs returned NULL\n");
1000 osi_Assert(WriteLocked(&adc->lock));
1002 *ops = (struct fetchOps *) &rxfs_fetchUfsOps;
1005 afs_Trace4(afs_iclSetp, CM_TRACE_MEMFETCH, ICL_TYPE_POINTER, avc,
1006 ICL_TYPE_POINTER, fP, ICL_TYPE_OFFSET,
1007 ICL_HANDLE_OFFSET(base), ICL_TYPE_INT32, length);
1009 * We need to alloc the iovecs on the heap so that they are "pinned"
1010 * rather than declare them on the stack - defect 11272
1012 v->iov = osi_AllocSmallSpace(sizeof(struct iovec) * RX_MAXIOVECS);
1014 osi_Panic("rxfs_fetchInit: osi_AllocSmallSpace for iovecs returned NULL\n");
1015 *ops = (struct fetchOps *) &rxfs_fetchMemOps;
1023 * Routine called on fetch; also tells people waiting for data
1024 * that more has arrived.
1026 * \param tc Ptr to the Rx connection structure.
1027 * \param fP File descriptor for the cache file.
1028 * \param base Base offset to fetch.
1029 * \param adc Ptr to the dcache entry for the file, write-locked.
1030 * \param avc Ptr to the vcache entry for the file.
1031 * \param size Amount of data that should be fetched.
1032 * \param tsmall Ptr to the afs_FetchOutput structure.
1034 * \note Environment: Nothing interesting.
1037 afs_CacheFetchProc(struct afs_conn *tc, struct osi_file *fP, afs_size_t base,
1038 struct dcache *adc, struct vcache *avc, afs_int32 size,
1039 struct afs_FetchOutput *tsmall)
1043 afs_uint32 bytesread, byteswritten;
1044 struct fetchOps *ops = NULL;
1046 afs_uint32 moredata = 0;
1051 osi_timeval_t xferStartTime; /*FS xfer start time */
1052 afs_size_t bytesToXfer = 0, bytesXferred = 0;
1055 AFS_STATCNT(CacheFetchProc);
1057 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHDATA);
1061 * avc->lock(R) if setLocks && !slowPass
1062 * avc->lock(W) if !setLocks || slowPass
1065 code = rxfs_fetchInit(
1066 tc, avc, base, size, &length, adc, fP, &ops, &rock);
1069 osi_GetuTime(&xferStartTime);
1070 #endif /* AFS_NOSTATS */
1073 adc->validPos = base;
1077 if (avc->f.states & CForeign) {
1078 code = (*ops->more)(rock, &length, &moredata);
1083 bytesToXfer += length;
1084 #endif /* AFS_NOSTATS */
1085 while (length > 0) {
1086 #ifdef RX_KERNEL_TRACE
1087 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1090 code = (*ops->read)(rock, length, &bytesread);
1091 #ifdef RX_KERNEL_TRACE
1092 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
1096 bytesXferred += bytesread;
1097 #endif /* AFS_NOSTATS */
1099 afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64READ,
1100 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
1101 ICL_TYPE_INT32, length);
1105 code = (*ops->write)(rock, fP, offset, bytesread, &byteswritten);
1108 offset += bytesread;
1110 length -= bytesread;
1111 adc->validPos = base;
1112 if (afs_osi_Wakeup(&adc->validPos) == 0)
1113 afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE, ICL_TYPE_STRING,
1114 __FILE__, ICL_TYPE_INT32, __LINE__,
1115 ICL_TYPE_POINTER, adc, ICL_TYPE_INT32,
1121 code = (*ops->close)(rock, avc, adc, tsmall);
1123 (*ops->destroy)(&rock, code);
1126 FillStoreStats(code, AFS_STATS_FS_XFERIDX_FETCHDATA, &xferStartTime,
1127 bytesToXfer, bytesXferred);