Bug Summary

File:afs/afs_fetchstore.c
Location:line 532, column 2
Description:Value stored to 'stored' is never read

Annotated Source Code

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#include "afs/sysincludes.h" /* Standard vendor system headers */
14#ifndef AFS_LINUX22_ENV
15#include "rpc/types.h"
16#endif
17#ifdef AFS_ALPHA_ENV
18#undef kmem_alloc
19#undef kmem_free
20#undef mem_alloc
21#undef mem_free
22#endif /* AFS_ALPHA_ENV */
23#include "afsincludes.h" /* Afs-based standard headers */
24#include "afs/afs_stats.h" /* statistics */
25#include "afs_prototypes.h"
26
27extern int cacheDiskType;
28
29#ifndef AFS_NOSTATS
30void
31FillStoreStats(int code, int idx, osi_timeval_t *xferStartTime,
32 afs_size_t bytesToXfer, afs_size_t bytesXferred)
33{
34 struct afs_stats_xferData *xferP;
35 osi_timeval_t xferStopTime;
36 osi_timeval_t elapsedTime;
37
38 xferP = &(afs_stats_cmfullperf.rpc.fsXferTimes[idx]);
39 osi_GetuTime(&xferStopTime)osi_GetTime(&xferStopTime);
40 (xferP->numXfers)++;
41 if (!code) {
42 (xferP->numSuccesses)++;
43 afs_stats_XferSumBytes[idx] += bytesXferred;
44 (xferP->sumBytes) += (afs_stats_XferSumBytes[idx] >> 10);
45 afs_stats_XferSumBytes[idx] &= 0x3FF;
46 if (bytesXferred < xferP->minBytes)
47 xferP->minBytes = bytesXferred;
48 if (bytesXferred > xferP->maxBytes)
49 xferP->maxBytes = bytesXferred;
50
51 /*
52 * Tally the size of the object. Note: we tally the actual size,
53 * NOT the number of bytes that made it out over the wire.
54 */
55 if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET0128) (xferP->count[0])++;
56 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET11024) (xferP->count[1])++;
57 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET28192) (xferP->count[2])++;
58 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET316384) (xferP->count[3])++;
59 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET432768) (xferP->count[4])++;
60 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET5131072) (xferP->count[5])++;
61 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET6524288) (xferP->count[6])++;
62 else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET71048576) (xferP->count[7])++;
63 else
64 (xferP->count[8])++;
65
66 afs_stats_GetDiff(elapsedTime, (*xferStartTime), xferStopTime){ if (xferStopTime.tv_usec < (*xferStartTime).tv_usec) { xferStopTime
.tv_usec += 1000000; xferStopTime.tv_sec -= 1; } elapsedTime.
tv_sec = xferStopTime.tv_sec - (*xferStartTime).tv_sec; elapsedTime
.tv_usec = xferStopTime.tv_usec - (*xferStartTime).tv_usec; };
67 afs_stats_AddTo((xferP->sumTime), elapsedTime){ (xferP->sumTime).tv_sec += elapsedTime.tv_sec; (xferP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((xferP->sumTime
).tv_usec > 1000000) { (xferP->sumTime).tv_usec -= 1000000
; (xferP->sumTime).tv_sec++; } };
68 afs_stats_SquareAddTo((xferP->sqrTime), elapsedTime){ if(elapsedTime.tv_sec > 0 ) { (xferP->sqrTime).tv_sec
+= elapsedTime.tv_sec * elapsedTime.tv_sec + 2 * elapsedTime
.tv_sec * elapsedTime.tv_usec /1000000; (xferP->sqrTime).tv_usec
+= (2 * elapsedTime.tv_sec * elapsedTime.tv_usec) % 1000000 +
(elapsedTime.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2
* (elapsedTime.tv_usec / 1000) * (elapsedTime.tv_usec % 1000
) / 1000 + (((elapsedTime.tv_usec % 1000) > 707) ? 1 : 0);
} else { (xferP->sqrTime).tv_usec += (elapsedTime.tv_usec
/ 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime.tv_usec
/ 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((xferP->sqrTime
).tv_usec > 1000000) { (xferP->sqrTime).tv_usec -= 1000000
; (xferP->sqrTime).tv_sec++; } };
69 if (afs_stats_TimeLessThan(elapsedTime, (xferP->minTime))((elapsedTime.tv_sec < (xferP->minTime).tv_sec) ? 1 : (
elapsedTime.tv_sec > (xferP->minTime).tv_sec) ? 0 : (elapsedTime
.tv_usec < (xferP->minTime).tv_usec) ? 1 : 0)) {
70 afs_stats_TimeAssign((xferP->minTime), elapsedTime){ (xferP->minTime).tv_sec = elapsedTime.tv_sec; (xferP->
minTime).tv_usec = elapsedTime.tv_usec; };
71 }
72 if (afs_stats_TimeGreaterThan(elapsedTime, (xferP->maxTime))((elapsedTime.tv_sec > (xferP->maxTime).tv_sec) ? 1 : (
elapsedTime.tv_sec < (xferP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (xferP->maxTime).tv_usec) ? 1 : 0)) {
73 afs_stats_TimeAssign((xferP->maxTime), elapsedTime){ (xferP->maxTime).tv_sec = elapsedTime.tv_sec; (xferP->
maxTime).tv_usec = elapsedTime.tv_usec; };
74 }
75 }
76}
77#endif /* AFS_NOSTATS */
78
79/* rock and operations for RX_FILESERVER */
80
81
82
83afs_int32
84rxfs_storeUfsPrepare(void *r, afs_uint32 size, afs_uint32 *tlen)
85{
86 *tlen = (size > AFS_LRALLOCSIZ4096 ? AFS_LRALLOCSIZ4096 : size);
87 return 0;
88}
89
90afs_int32
91rxfs_storeMemPrepare(void *r, afs_uint32 size, afs_uint32 *tlen)
92{
93 afs_int32 code;
94 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *) r;
95
96 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 96);}while(0); } while(0);
97 code = rx_WritevAlloc(v->call, v->tiov, &v->tnio, RX_MAXIOVECS16, size);
98 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 98);}while(0); afs_global_owner = pthread_self(); } while(0
);
99 if (code <= 0) {
100 code = rx_Error(v->call)((v->call)->error);
101 if (!code)
102 code = -33;
103 }
104 else {
105 *tlen = code;
106 code = 0;
107 }
108 return code;
109}
110
111afs_int32
112rxfs_storeUfsRead(void *r, struct osi_file *tfile, afs_uint32 offset,
113 afs_uint32 tlen, afs_uint32 *bytesread)
114{
115 afs_int32 code;
116 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
117
118 *bytesread = 0;
119 code = afs_osi_Read(tfile, -1, v->tbuffer, tlen);
120 if (code < 0)
121 return EIO5;
122 *bytesread = code;
123 if (code == tlen)
124 return 0;
125#if defined(KERNEL_HAVE_UERROR)
126 if (getuerror()get_user_struct()->u_error)
127 return EIO5;
128#endif
129 return 0;
130}
131
132afs_int32
133rxfs_storeMemRead(void *r, struct osi_file *tfile, afs_uint32 offset,
134 afs_uint32 tlen, afs_uint32 *bytesread)
135{
136 afs_int32 code;
137 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
138 struct memCacheEntry *mceP = (struct memCacheEntry *)tfile;
139
140 *bytesread = 0;
141 code = afs_MemReadvBlk(mceP, offset, v->tiov, v->tnio, tlen);
142 if (code != tlen)
143 return -33;
144 *bytesread = code;
145 return 0;
146}
147
148afs_int32
149rxfs_storeMemWrite(void *r, afs_uint32 l, afs_uint32 *byteswritten)
150{
151 afs_int32 code;
152 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
153
154 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 154);}while(0); } while(0);
155 code = rx_Writev(v->call, v->tiov, v->tnio, l)rx_WritevProc(v->call, v->tiov, v->tnio, l);
156 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 156);}while(0); afs_global_owner = pthread_self(); } while(
0);
157 if (code != l) {
158 code = rx_Error(v->call)((v->call)->error);
159 return (code ? code : -33);
160 }
161 *byteswritten = code;
162 return 0;
163}
164
165afs_int32
166rxfs_storeUfsWrite(void *r, afs_uint32 l, afs_uint32 *byteswritten)
167{
168 afs_int32 code;
169 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
170
171 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 171);}while(0); } while(0);
172 code = rx_Write(v->call, v->tbuffer, l)rx_WriteProc(v->call, v->tbuffer, l);
173 /* writing 0 bytes will
174 * push a short packet. Is that really what we want, just because the
175 * data didn't come back from the disk yet? Let's try it and see. */
176 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 176);}while(0); afs_global_owner = pthread_self(); } while(
0);
177 if (code != l) {
178 code = rx_Error(v->call)((v->call)->error);
179 return (code ? code : -33);
180 }
181 *byteswritten = code;
182 return 0;
183}
184
185afs_int32
186rxfs_storePadd(void *rock, afs_uint32 size)
187{
188 afs_int32 code = 0;
189 afs_uint32 tlen;
190 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)rock;
191
192 if (!v->tbuffer)
193 v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ4096);
194 memset(v->tbuffer, 0, AFS_LRALLOCSIZ4096);
195
196 while (size) {
197 tlen = (size > AFS_LRALLOCSIZ4096 ? AFS_LRALLOCSIZ4096 : size);
198 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 198);}while(0); } while(0);
199 code = rx_Write(v->call, v->tbuffer, tlen)rx_WriteProc(v->call, v->tbuffer, tlen);
200 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 200);}while(0); afs_global_owner = pthread_self(); } while(
0);
201
202 if (code != tlen)
203 return -33; /* XXX */
204 size -= tlen;
205 }
206 return 0;
207}
208
209afs_int32
210rxfs_storeStatus(void *rock)
211{
212 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)rock;
213
214 if (rx_GetRemoteStatus(v->call)((v->call)->remoteStatus) & 1)
215 return 0;
216 return 1;
217}
218
219afs_int32
220rxfs_storeClose(void *r, struct AFSFetchStatus *OutStatus, int *doProcessFS)
221{
222 afs_int32 code;
223 struct AFSVolSync tsync;
224 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
225
226 if (!v->call)
227 return -1;
228 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 228);}while(0); } while(0);
229#ifdef AFS_64BIT_CLIENT
230 if (!v->hasNo64bit)
231 code = EndRXAFS_StoreData64(v->call, OutStatus, &tsync);
232 else
233#endif
234 code = EndRXAFS_StoreData(v->call, OutStatus, &tsync);
235 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 235);}while(0); afs_global_owner = pthread_self(); } while(
0);
236 if (!code)
237 *doProcessFS = 1; /* Flag to run afs_ProcessFS() later on */
238
239 return code;
240}
241
242afs_int32
243rxfs_storeDestroy(void **r, afs_int32 error)
244{
245 afs_int32 code = error;
246 struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)*r;
247
248 *r = NULL((void *)0);
249 if (v->call) {
250 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 250);}while(0); } while(0);
251 code = rx_EndCall(v->call, error);
252 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 252);}while(0); afs_global_owner = pthread_self(); } while(
0);
253 if (!code && error)
254 code = error;
255 }
256 if (v->tbuffer)
257 osi_FreeLargeSpace(v->tbuffer);
258 if (v->tiov)
259 osi_FreeSmallSpace(v->tiov);
260 osi_FreeSmallSpace(v);
261 return code;
262}
263
264afs_int32
265afs_GenericStoreProc(struct storeOps *ops, void *rock,
266 struct dcache *tdc, int *shouldwake,
267 afs_size_t *bytesXferred)
268{
269 struct rxfs_storeVariables *svar = rock;
270 afs_uint32 tlen, bytesread, byteswritten;
271 afs_int32 code = 0;
272 int offset = 0;
273 afs_size_t size;
274 struct osi_file *tfile;
275
276 size = tdc->f.chunkBytes;
277
278 tfile = afs_CFileOpen(&tdc->f.inode)(void *)(*(afs_cacheType->open))(&tdc->f.usr_inode);
279
280 while ( size > 0 ) {
281 code = (*ops->prepare)(rock, size, &tlen);
282 if ( code )
283 break;
284
285 code = (*ops->read)(rock, tfile, offset, tlen, &bytesread);
286 if (code)
287 break;
288
289 tlen = bytesread;
290 code = (*ops->write)(rock, tlen, &byteswritten);
291 if (code)
292 break;
293#ifndef AFS_NOSTATS
294 *bytesXferred += byteswritten;
295#endif /* AFS_NOSTATS */
296
297 offset += tlen;
298 size -= tlen;
299 /*
300 * if file has been locked on server, can allow
301 * store to continue
302 */
303 if (shouldwake && *shouldwake && ((*ops->status)(rock) == 0)) {
304 *shouldwake = 0; /* only do this once */
305 afs_wakeup(svar->vcache);
306 }
307 }
308 afs_CFileClose(tfile)(*(afs_cacheType->close))(tfile);
309
310 return code;
311}
312
313static
314struct storeOps rxfs_storeUfsOps = {
315#ifndef HAVE_STRUCT_LABEL_SUPPORT1
316 rxfs_storeUfsPrepare,
317 rxfs_storeUfsRead,
318 rxfs_storeUfsWrite,
319 rxfs_storeStatus,
320 rxfs_storePadd,
321 rxfs_storeClose,
322 rxfs_storeDestroy,
323 afs_GenericStoreProc
324#else
325 .prepare = rxfs_storeUfsPrepare,
326 .read = rxfs_storeUfsRead,
327 .write = rxfs_storeUfsWrite,
328 .status = rxfs_storeStatus,
329 .padd = rxfs_storePadd,
330 .close = rxfs_storeClose,
331 .destroy = rxfs_storeDestroy,
332#ifdef AFS_LINUX26_ENV
333 .storeproc = afs_linux_storeproc
334#else
335 .storeproc = afs_GenericStoreProc
336#endif
337#endif
338};
339
340static
341struct storeOps rxfs_storeMemOps = {
342#ifndef HAVE_STRUCT_LABEL_SUPPORT1
343 rxfs_storeMemPrepare,
344 rxfs_storeMemRead,
345 rxfs_storeMemWrite,
346 rxfs_storeStatus,
347 rxfs_storePadd,
348 rxfs_storeClose,
349 rxfs_storeDestroy,
350 afs_GenericStoreProc
351#else
352 .prepare = rxfs_storeMemPrepare,
353 .read = rxfs_storeMemRead,
354 .write = rxfs_storeMemWrite,
355 .status = rxfs_storeStatus,
356 .padd = rxfs_storePadd,
357 .close = rxfs_storeClose,
358 .destroy = rxfs_storeDestroy,
359 .storeproc = afs_GenericStoreProc
360#endif
361};
362
363afs_int32
364rxfs_storeInit(struct vcache *avc, struct afs_conn *tc,
365 struct rx_connection *rxconn, afs_size_t base,
366 afs_size_t bytes, afs_size_t length,
367 int sync, struct storeOps **ops, void **rock)
368{
369 afs_int32 code;
370 struct rxfs_storeVariables *v;
371
372 if ( !tc )
373 return -1;
374
375 v = (struct rxfs_storeVariables *) osi_AllocSmallSpace(sizeof(struct rxfs_storeVariables));
376 if (!v)
377 osi_Panic("rxfs_storeInit: osi_AllocSmallSpace returned NULL\n");
378 memset(v, 0, sizeof(struct rxfs_storeVariables));
379
380 v->InStatus.ClientModTime = avc->f.m.Date;
381 v->InStatus.Mask = AFS_SETMODTIME1;
382 v->vcache = avc;
383 if (sync & AFS_SYNC1)
384 v->InStatus.Mask |= AFS_FSYNC1024;
385 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 385);}while(0); } while(0);
386 v->call = rx_NewCall(rxconn);
387 if (v->call) {
388#ifdef AFS_64BIT_CLIENT
389 if (!afs_serverHasNo64Bit(tc)(((struct sa_conn_vector*)(tc)->parent)->srvr->server
->flags & 0x200))
390 code = StartRXAFS_StoreData64(
391 v->call, (struct AFSFid*)&avc->f.fidusr_fid.Fid,
392 &v->InStatus, base, bytes, length);
393 else
394 if (length > 0xFFFFFFFF)
395 code = EFBIG27;
396 else {
397 afs_int32 t1 = base, t2 = bytes, t3 = length;
398 code = StartRXAFS_StoreData(v->call,
399 (struct AFSFid *) &avc->f.fidusr_fid.Fid,
400 &v->InStatus, t1, t2, t3);
401 }
402#else /* AFS_64BIT_CLIENT */
403 code = StartRXAFS_StoreData(v->call, (struct AFSFid *)&avc->f.fidusr_fid.Fid,
404 &v->InStatus, base, bytes, length);
405#endif /* AFS_64BIT_CLIENT */
406 } else
407 code = -1;
408 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 408);}while(0); afs_global_owner = pthread_self(); } while(
0);
409 if (code) {
410 osi_FreeSmallSpace(v);
411 return code;
412 }
413 if (cacheDiskType == AFS_FCACHE_TYPE_UFS0x0) {
414 v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ4096);
415 if (!v->tbuffer)
416 osi_Panic
417 ("rxfs_storeInit: osi_AllocLargeSpace for iovecs returned NULL\n");
418 *ops = (struct storeOps *) &rxfs_storeUfsOps;
419 } else {
420 v->tiov = osi_AllocSmallSpace(sizeof(struct iovec) * RX_MAXIOVECS16);
421 if (!v->tiov)
422 osi_Panic
423 ("rxfs_storeInit: osi_AllocSmallSpace for iovecs returned NULL\n");
424 *ops = (struct storeOps *) &rxfs_storeMemOps;
425#ifdef notdef
426 /* do this at a higher level now -- it's a parameter */
427 /* for now, only do 'continue from close' code if file fits in one
428 * chunk. Could clearly do better: if only one modified chunk
429 * then can still do this. can do this on *last* modified chunk */
430 length = avc->f.m.Length - 1; /* byte position of last byte we'll store */
431 if (shouldWake) {
432 if (AFS_CHUNK(length)((length < afs_FirstCSize) ? 0 : (((length - afs_FirstCSize
) >> afs_LogChunk) + 1)) != 0)
433 *shouldWake = 0;
434 else
435 *shouldWake = 1;
436 }
437#endif /* notdef */
438 }
439
440 *rock = (void *)v;
441 return 0;
442}
443unsigned int storeallmissing = 0;
444/*!
445 * Called for each chunk upon store.
446 *
447 * \param avc Ptr to the vcache entry of the file being stored.
448 * \param dclist pointer to the list of dcaches
449 * \param bytes total number of bytes for the current operation
450 * \param anewDV Ptr to the dataversion after store
451 * \param doProcessFS pointer to the "do process FetchStatus" flag
452 * \param OutStatus pointer to the FetchStatus as returned by the fileserver
453 * \param nchunks number of dcaches to consider
454 * \param nomore copy of the "no more data" flag
455 * \param ops pointer to the block of storeOps to be used for this operation
456 * \param rock pointer to the opaque protocol-specific data of this operation
457 */
458afs_int32
459afs_CacheStoreDCaches(struct vcache *avc, struct dcache **dclist,
460 afs_size_t bytes, afs_hyper_t *anewDV, int *doProcessFS,
461 struct AFSFetchStatus *OutStatus, afs_uint32 nchunks,
462 int nomore, struct storeOps *ops, void *rock)
463{
464 int *shouldwake = NULL((void *)0);
465 unsigned int i;
466 afs_int32 code = 0;
467 afs_size_t bytesXferred;
468
469#ifndef AFS_NOSTATS
470 osi_timeval_t xferStartTime; /*FS xfer start time */
471 afs_size_t bytesToXfer = 10000; /* # bytes to xfer */
472#endif /* AFS_NOSTATS */
473 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
474
475 for (i = 0; i < nchunks && !code; i++) {
476 int stored = 0;
477 struct dcache *tdc = dclist[i];
478 afs_int32 size = tdc->f.chunkBytes;
479 if (!tdc) {
480 afs_warn("afs: missing dcache!\n");
481 storeallmissing++;
482 continue; /* panic? */
483 }
484 afs_Trace4(afs_iclSetp, CM_TRACE_STOREALL2, ICL_TYPE_POINTER, avc,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087878L), (1<<24)+((2)
<<18)+((7)<<12)+((7)<<6)+(7), (long)(avc), (
long)(tdc->f.chunk), (long)(tdc->index), (long)(afs_inode2trace
(&tdc->f.usr_inode))) : 0)
485 ICL_TYPE_INT32, tdc->f.chunk, ICL_TYPE_INT32, tdc->index,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087878L), (1<<24)+((2)
<<18)+((7)<<12)+((7)<<6)+(7), (long)(avc), (
long)(tdc->f.chunk), (long)(tdc->index), (long)(afs_inode2trace
(&tdc->f.usr_inode))) : 0)
486 ICL_TYPE_INT32, afs_inode2trace(&tdc->f.inode))(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087878L), (1<<24)+((2)
<<18)+((7)<<12)+((7)<<6)+(7), (long)(avc), (
long)(tdc->f.chunk), (long)(tdc->index), (long)(afs_inode2trace
(&tdc->f.usr_inode))) : 0);
487 shouldwake = 0;
488 if (nomore) {
489 if (avc->asynchrony == -1) {
490 if (afs_defaultAsynchrony > (bytes - stored))
491 shouldwake = &nomore;
492 }
493 else if ((afs_uint32) avc->asynchrony >= (bytes - stored))
494 shouldwake = &nomore;
495 }
496
497 afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087757L), (1<<24)+((2)
<<18)+((5)<<12)+((8)<<6)+(7), (long)(avc), (
long)(&(avc->f.usr_fid)), (long)((avc->f.m.Length))
, (long)(size)) : 0)
498 ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087757L), (1<<24)+((2)
<<18)+((5)<<12)+((8)<<6)+(7), (long)(avc), (
long)(&(avc->f.usr_fid)), (long)((avc->f.m.Length))
, (long)(size)) : 0)
499 ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, size)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087757L), (1<<24)+((2)
<<18)+((5)<<12)+((8)<<6)+(7), (long)(avc), (
long)(&(avc->f.usr_fid)), (long)((avc->f.m.Length))
, (long)(size)) : 0);
500
501 AFS_STATCNT(CacheStoreProc)((afs_cmstats.callInfo.C_CacheStoreProc)++);
502
503 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREDATA)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[3]); osi_GetTime
(&opStartTime);;
504 avc->f.truncPos = AFS_NOTRUNC0x7fffffff;
505#ifndef AFS_NOSTATS
506 /*
507 * In this case, size is *always* the amount of data we'll be trying
508 * to ship here.
509 */
510 bytesToXfer = size;
511
512 osi_GetuTime(&xferStartTime)osi_GetTime(&xferStartTime);
513#endif /* AFS_NOSTATS */
514 bytesXferred = 0;
515
516 code = (*ops->storeproc)(ops, rock, tdc, shouldwake,
517 &bytesXferred);
518
519 afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087757L), (1<<24)+((2)
<<18)+((5)<<12)+((8)<<6)+(7), (long)(avc), (
long)(&(avc->f.usr_fid)), (long)((avc->f.m.Length))
, (long)(size)) : 0)
520 ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087757L), (1<<24)+((2)
<<18)+((5)<<12)+((8)<<6)+(7), (long)(avc), (
long)(&(avc->f.usr_fid)), (long)((avc->f.m.Length))
, (long)(size)) : 0)
521 ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, size)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087757L), (1<<24)+((2)
<<18)+((5)<<12)+((8)<<6)+(7), (long)(avc), (
long)(&(avc->f.usr_fid)), (long)((avc->f.m.Length))
, (long)(size)) : 0);
522
523#ifndef AFS_NOSTATS
524 FillStoreStats(code, AFS_STATS_FS_XFERIDX_STOREDATA1,
525 &xferStartTime, bytesToXfer, bytesXferred);
526#endif /* AFS_NOSTATS */
527
528 if ((tdc->f.chunkBytes < afs_OtherCSize)
529 && (i < (nchunks - 1)) && code == 0) {
530 code = (*ops->padd)(rock, afs_OtherCSize - tdc->f.chunkBytes);
531 }
532 stored += tdc->f.chunkBytes;
Value stored to 'stored' is never read
533 /* ideally, I'd like to unlock the dcache and turn
534 * off the writing bit here, but that would
535 * require being able to retry StoreAllSegments in
536 * the event of a failure. It only really matters
537 * if user can't read from a 'locked' dcache or
538 * one which has the writing bit turned on. */
539 }
540
541 if (!code) {
542 code = (*ops->close)(rock, OutStatus, doProcessFS);
543 if (*doProcessFS) {
544 hadd32(*anewDV, 1)((void)((((*anewDV).low ^ (int)(1)) & 0x80000000) ? (((((
*anewDV).low + (int)(1)) & 0x80000000) == 0) && (
*anewDV).high++) : (((*anewDV).low & (int)(1) & 0x80000000
) && (*anewDV).high++)), (*anewDV).low += (int)(1));
545 }
546 XSTATS_END_TIMEosi_GetTime(&opStopTime); (opP->numOps)++; if (!code) {
(opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
547 }
548 if (ops)
549 code = (*ops->destroy)(&rock, code);
550 return code;
551}
552
553#define lmin(a,b)(((a) < (b)) ? (a) : (b)) (((a) < (b)) ? (a) : (b))
554/*!
555 * Called upon store.
556 *
557 * \param dclist pointer to the list of dcaches
558 * \param avc Ptr to the vcache entry.
559 * \param areq Ptr to the request structure
560 * \param sync sync flag
561 * \param minj the chunk offset for this call
562 * \param high index of last dcache to store
563 * \param moredata the moredata flag
564 * \param anewDV Ptr to the dataversion after store
565 * \param amaxStoredLength Ptr to the amount of that is actually stored
566 *
567 * \note Environment: Nothing interesting.
568 */
569int
570afs_CacheStoreVCache(struct dcache **dcList, struct vcache *avc,
571 struct vrequest *areq, int sync, unsigned int minj,
572 unsigned int high, unsigned int moredata,
573 afs_hyper_t *anewDV, afs_size_t *amaxStoredLength)
574{
575 afs_int32 code = 0;
576 struct storeOps *ops;
577 void * rock = NULL((void *)0);
578 unsigned int i, j;
579
580 struct AFSFetchStatus OutStatus;
581 int doProcessFS = 0;
582 afs_size_t base, bytes, length;
583 int nomore;
584 unsigned int first = 0;
585 struct afs_conn *tc;
586 struct rx_connection *rxconn;
587
588 for (bytes = 0, j = 0; !code && j <= high; j++) {
589 if (dcList[j]) {
590 ObtainSharedLock(&(dcList[j]->lock), 629)do { ; if (!(&(dcList[j]->lock))->excl_locked) (&
(dcList[j]->lock)) -> excl_locked = 4; else Afs_Lock_Obtain
(&(dcList[j]->lock), 4); (&(dcList[j]->lock))->
pid_writer = (get_user_struct()->u_procp->p_pid ); (&
(dcList[j]->lock))->src_indicator = 629; } while (0);
591 if (!bytes)
592 first = j;
593 bytes += dcList[j]->f.chunkBytes;
594 if ((dcList[j]->f.chunkBytes < afs_OtherCSize)
595 && (dcList[j]->f.chunk - minj < high)
596 && dcList[j + 1]) {
597 int sbytes = afs_OtherCSize - dcList[j]->f.chunkBytes;
598 bytes += sbytes;
599 }
600 }
601 if (bytes && (j == high || !dcList[j + 1])) {
602 afs_uint32 nchunks;
603 struct dcache **dclist = &dcList[first];
604 /* base = AFS_CHUNKTOBASE(dcList[first]->f.chunk); */
605 base = AFS_CHUNKTOBASE(first + minj)((first + minj == 0) ? 0 : ((afs_size_t) afs_FirstCSize + ((afs_size_t
) (first + minj - 1) << afs_LogChunk)));
606 /*
607 *
608 * take a list of dcache structs and send them all off to the server
609 * the list must be in order, and the chunks contiguous.
610 * Note - there is no locking done by this code currently. For
611 * safety's sake, xdcache could be locked over the entire call.
612 * However, that pretty well ties up all the threads. Meantime, all
613 * the chunks _MUST_ have their refcounts bumped.
614 * The writes done before a store back will clear setuid-ness
615 * in cache file.
616 * We can permit CacheStoreProc to wake up the user process IFF we
617 * are doing the last RPC for this close, ie, storing back the last
618 * set of contiguous chunks of a file.
619 */
620
621 nchunks = 1 + j - first;
622 nomore = !(moredata || (j != high));
623 length = lmin(avc->f.m.Length, avc->f.truncPos)(((avc->f.m.Length) < (avc->f.truncPos)) ? (avc->
f.m.Length) : (avc->f.truncPos));
624 afs_Trace4(afs_iclSetp, CM_TRACE_STOREDATA64,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087881L), (1<<24)+((5)
<<18)+((8)<<12)+((8)<<6)+(8), (long)(&avc
->f.usr_fid.Fid), (long)((base)), (long)((bytes)), (long)(
(length))) : 0)
625 ICL_TYPE_FID, &avc->f.fid.Fid, ICL_TYPE_OFFSET,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087881L), (1<<24)+((5)
<<18)+((8)<<12)+((8)<<6)+(8), (long)(&avc
->f.usr_fid.Fid), (long)((base)), (long)((bytes)), (long)(
(length))) : 0)
626 ICL_HANDLE_OFFSET(base), ICL_TYPE_OFFSET,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087881L), (1<<24)+((5)
<<18)+((8)<<12)+((8)<<6)+(8), (long)(&avc
->f.usr_fid.Fid), (long)((base)), (long)((bytes)), (long)(
(length))) : 0)
627 ICL_HANDLE_OFFSET(bytes), ICL_TYPE_OFFSET,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087881L), (1<<24)+((5)
<<18)+((8)<<12)+((8)<<6)+(8), (long)(&avc
->f.usr_fid.Fid), (long)((base)), (long)((bytes)), (long)(
(length))) : 0)
628 ICL_HANDLE_OFFSET(length))(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087881L), (1<<24)+((5)
<<18)+((8)<<12)+((8)<<6)+(8), (long)(&avc
->f.usr_fid.Fid), (long)((base)), (long)((bytes)), (long)(
(length))) : 0);
629
630 do {
631 tc = afs_Conn(&avc->f.fidusr_fid, areq, 0, &rxconn);
632
633#ifdef AFS_64BIT_CLIENT
634 restart:
635#endif
636 code = rxfs_storeInit(avc, tc, rxconn, base, bytes, length,
637 sync, &ops, &rock);
638 if ( !code ) {
639 code = afs_CacheStoreDCaches(avc, dclist, bytes, anewDV,
640 &doProcessFS, &OutStatus,
641 nchunks, nomore, ops, rock);
642 }
643
644#ifdef AFS_64BIT_CLIENT
645 if (code == RXGEN_OPCODE-455 && !afs_serverHasNo64Bit(tc)(((struct sa_conn_vector*)(tc)->parent)->srvr->server
->flags & 0x200)) {
646 afs_serverSetNo64Bit(tc)(((struct sa_conn_vector*)(tc)->parent)->srvr->server
->flags |= 0x200);
647 goto restart;
648 }
649#endif /* AFS_64BIT_CLIENT */
650 } while (afs_Analyze
651 (tc, rxconn, code, &avc->f.fidusr_fid, areq,
652 AFS_STATS_FS_RPCIDX_STOREDATA3, SHARED_LOCK4,
653 NULL((void *)0)));
654
655 /* put back all remaining locked dcache entries */
656 for (i = 0; i < nchunks; i++) {
657 struct dcache *tdc = dclist[i];
658 if (!code) {
659 if (afs_indexFlags[tdc->index] & IFDataMod4) {
660 /*
661 * LOCKXXX -- should hold afs_xdcache(W) when
662 * modifying afs_indexFlags.
663 */
664 afs_indexFlags[tdc->index] &= ~IFDataMod4;
665 afs_stats_cmperf.cacheCurrDirtyChunks--;
666 afs_indexFlags[tdc->index] &= ~IFDirtyPages16;
667 if (sync & AFS_VMSYNC_INVAL2) {
668 /* since we have invalidated all the pages of this
669 ** vnode by calling osi_VM_TryToSmush, we can
670 ** safely mark this dcache entry as not having
671 ** any pages. This vnode now becomes eligible for
672 ** reclamation by getDownD.
673 */
674 afs_indexFlags[tdc->index] &= ~IFAnyPages32;
675 }
676 }
677 }
678 UpgradeSToWLock(&tdc->lock, 628)do { ; if (!(&tdc->lock)->readers_reading) (&tdc
->lock)->excl_locked = 2; else Afs_Lock_Obtain(&tdc
->lock, 6); (&tdc->lock)->pid_writer = (get_user_struct
()->u_procp->p_pid ); (&tdc->lock)->src_indicator
= 628; } while (0);
679 tdc->f.states &= ~DWriting8; /* correct? */
680 tdc->dflags |= DFEntryMod0x02;
681 ReleaseWriteLock(&tdc->lock)do { ; (&tdc->lock)->excl_locked &= ~2; if ((&
tdc->lock)->wait_states) Afs_Lock_ReleaseR(&tdc->
lock); (&tdc->lock)->pid_writer=0; } while (0);
682 afs_PutDCache(tdc);
683 /* Mark the entry as released */
684 dclist[i] = NULL((void *)0);
685 }
686
687 if (doProcessFS) {
688 /* Now copy out return params */
689 UpgradeSToWLock(&avc->lock, 28)do { ; if (!(&avc->lock)->readers_reading) (&avc
->lock)->excl_locked = 2; else Afs_Lock_Obtain(&avc
->lock, 6); (&avc->lock)->pid_writer = (get_user_struct
()->u_procp->p_pid ); (&avc->lock)->src_indicator
= 28; } while (0); /* keep out others for a while */
690 afs_ProcessFS(avc, &OutStatus, areq);
691 /* Keep last (max) size of file on server to see if
692 * we need to call afs_StoreMini to extend the file.
693 */
694 if (!moredata)
695 *amaxStoredLength = OutStatus.Length;
696 ConvertWToSLock(&avc->lock)do { ; (&avc->lock)->excl_locked = 4; if((&avc->
lock)->wait_states) Afs_Lock_ReleaseR(&avc->lock); }
while (0);
697 doProcessFS = 0;
698 }
699
700 if (code) {
701 for (j++; j <= high; j++) {
702 if (dcList[j]) {
703 ReleaseSharedLock(&(dcList[j]->lock))do { ; (&(dcList[j]->lock))->excl_locked &= ~(4
| 2); if ((&(dcList[j]->lock))->wait_states) Afs_Lock_ReleaseR
(&(dcList[j]->lock)); (&(dcList[j]->lock))->
pid_writer=0; } while (0);
704 afs_PutDCache(dcList[j]);
705 /* Releasing entry */
706 dcList[j] = NULL((void *)0);
707 }
708 }
709 }
710
711 afs_Trace2(afs_iclSetp, CM_TRACE_STOREALLDCDONE,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event2(afs_iclSetp, (701087841L), (1<<24)+((2)
<<18)+((7)<<12), (long)(avc), (long)(code)) : 0)
712 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event2(afs_iclSetp, (701087841L), (1<<24)+((2)
<<18)+((7)<<12), (long)(avc), (long)(code)) : 0);
713 bytes = 0;
714 }
715 }
716
717 return code;
718}
719
720/* rock and operations for RX_FILESERVER */
721
722struct rxfs_fetchVariables {
723 struct rx_call *call;
724 char *tbuffer;
725 struct iovec *iov;
726 afs_int32 nio;
727 afs_int32 hasNo64bit;
728 afs_int32 iovno;
729 afs_int32 iovmax;
730};
731
732afs_int32
733rxfs_fetchUfsRead(void *r, afs_uint32 size, afs_uint32 *bytesread)
734{
735 afs_int32 code;
736 afs_uint32 tlen;
737 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
738
739 *bytesread = 0;
740 tlen = (size > AFS_LRALLOCSIZ4096 ? AFS_LRALLOCSIZ4096 : size);
741 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 741);}while(0); } while(0);
742 code = rx_Read(v->call, v->tbuffer, tlen)rx_ReadProc(v->call, v->tbuffer, tlen);
743 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 743);}while(0); afs_global_owner = pthread_self(); } while(
0);
744 if (code <= 0)
745 return -34;
746 *bytesread = code;
747 return 0;
748}
749
750afs_int32
751rxfs_fetchMemRead(void *r, afs_uint32 tlen, afs_uint32 *bytesread)
752{
753 afs_int32 code;
754 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
755
756 *bytesread = 0;
757 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 757);}while(0); } while(0);
758 code = rx_Readv(v->call, v->iov, &v->nio, RX_MAXIOVECS, tlen)rx_ReadvProc(v->call, v->iov, &v->nio, 16, tlen);
759 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 759);}while(0); afs_global_owner = pthread_self(); } while(
0);
760 if (code <= 0)
761 return -34;
762 *bytesread = code;
763 return 0;
764}
765
766
767afs_int32
768rxfs_fetchMemWrite(void *r, struct osi_file *fP, afs_uint32 offset,
769 afs_uint32 tlen, afs_uint32 *byteswritten)
770{
771 afs_int32 code;
772 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
773 struct memCacheEntry *mceP = (struct memCacheEntry *)fP;
774
775 code = afs_MemWritevBlk(mceP, offset, v->iov, v->nio, tlen);
776 if (code != tlen) {
777 return EIO5;
778 }
779 *byteswritten = code;
780 return 0;
781}
782
783afs_int32
784rxfs_fetchUfsWrite(void *r, struct osi_file *fP, afs_uint32 offset,
785 afs_uint32 tlen, afs_uint32 *byteswritten)
786{
787 afs_int32 code;
788 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
789
790 code = afs_osi_Write(fP, -1, v->tbuffer, tlen);
791 if (code != tlen) {
792 return EIO5;
793 }
794 *byteswritten = code;
795 return 0;
796}
797
798
799afs_int32
800rxfs_fetchClose(void *r, struct vcache *avc, struct dcache * adc,
801 struct afs_FetchOutput *o)
802{
803 afs_int32 code, code1 = 0;
804 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
805
806 if (!v->call)
807 return -1;
808
809 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 809);}while(0); } while(0);
810#ifdef AFS_64BIT_CLIENT
811 if (!v->hasNo64bit)
812 code = EndRXAFS_FetchData64(v->call, &o->OutStatus, &o->CallBack,
813 &o->tsync);
814 else
815#endif
816 code = EndRXAFS_FetchData(v->call, &o->OutStatus, &o->CallBack,
817 &o->tsync);
818 code1 = rx_EndCall(v->call, code);
819 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 819);}while(0); afs_global_owner = pthread_self(); } while(
0);
820 if (!code && code1)
821 code = code1;
822
823 v->call = NULL((void *)0);
824
825 return code;
826}
827
828afs_int32
829rxfs_fetchDestroy(void **r, afs_int32 error)
830{
831 afs_int32 code = error;
832 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)*r;
833
834 *r = NULL((void *)0);
835 if (v->call) {
836 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 836);}while(0); } while(0);
837 code = rx_EndCall(v->call, error);
838 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 838);}while(0); afs_global_owner = pthread_self(); } while(
0);
839 if (error)
840 code = error;
841 }
842 if (v->tbuffer)
843 osi_FreeLargeSpace(v->tbuffer);
844 if (v->iov)
845 osi_FreeSmallSpace(v->iov);
846 osi_FreeSmallSpace(v);
847 return code;
848}
849
850afs_int32
851rxfs_fetchMore(void *r, afs_int32 *length, afs_uint32 *moredata)
852{
853 afs_int32 code;
854 struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
855
856 /*
857 * The fetch protocol is extended for the AFS/DFS translator
858 * to allow multiple blocks of data, each with its own length,
859 * to be returned. As long as the top bit is set, there are more
860 * blocks expected.
861 *
862 * We do not do this for AFS file servers because they sometimes
863 * return large negative numbers as the transfer size.
864 */
865 if (*moredata) {
866 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 866);}while(0); } while(0);
867 code = rx_Read(v->call, (void *)length, sizeof(afs_int32))rx_ReadProc(v->call, (void *)length, sizeof(afs_int32));
868 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 868);}while(0); afs_global_owner = pthread_self(); } while(
0);
869 *length = ntohl(*length)(__builtin_constant_p(*length) ? ((((__uint32_t)(*length)) >>
24) | ((((__uint32_t)(*length)) & (0xff << 16)) >>
8) | ((((__uint32_t)(*length)) & (0xff << 8)) <<
8) | (((__uint32_t)(*length)) << 24)) : __bswap32_var(
*length));
870 if (code != sizeof(afs_int32)) {
871 code = rx_Error(v->call)((v->call)->error);
872 *moredata = 0;
873 return (code ? code : -1); /* try to return code, not -1 */
874 }
875 }
876 *moredata = *length & 0x80000000;
877 *length &= ~0x80000000;
878 return 0;
879}
880
881static
882struct fetchOps rxfs_fetchUfsOps = {
883 rxfs_fetchMore,
884 rxfs_fetchUfsRead,
885 rxfs_fetchUfsWrite,
886 rxfs_fetchClose,
887 rxfs_fetchDestroy
888};
889
890static
891struct fetchOps rxfs_fetchMemOps = {
892 rxfs_fetchMore,
893 rxfs_fetchMemRead,
894 rxfs_fetchMemWrite,
895 rxfs_fetchClose,
896 rxfs_fetchDestroy
897};
898
899afs_int32
900rxfs_fetchInit(struct afs_conn *tc, struct rx_connection *rxconn,
901 struct vcache *avc, afs_offs_t base,
902 afs_uint32 size, afs_int32 *alength, struct dcache *adc,
903 struct osi_file *fP, struct fetchOps **ops, void **rock)
904{
905 struct rxfs_fetchVariables *v;
906 int code = 0, code1 = 0;
907#ifdef AFS_64BIT_CLIENT
908 afs_uint32 length_hi = 0;
909#endif
910 afs_uint32 length, bytes;
911
912 v = (struct rxfs_fetchVariables *)
913 osi_AllocSmallSpace(sizeof(struct rxfs_fetchVariables));
914 if (!v)
915 osi_Panic("rxfs_fetchInit: osi_AllocSmallSpace returned NULL\n");
916 memset(v, 0, sizeof(struct rxfs_fetchVariables));
917
918 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 918);}while(0); } while(0);
919 v->call = rx_NewCall(rxconn);
920 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 920);}while(0); afs_global_owner = pthread_self(); } while(
0);
921 if (v->call) {
922#ifdef AFS_64BIT_CLIENT
923 afs_size_t length64; /* as returned from server */
924 if (!afs_serverHasNo64Bit(tc)(((struct sa_conn_vector*)(tc)->parent)->srvr->server
->flags & 0x200)) {
925 afs_uint64 llbytes = size;
926 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 926);}while(0); } while(0);
927 code = StartRXAFS_FetchData64(v->call,
928 (struct AFSFid *) &avc->f.fidusr_fid.Fid,
929 base, llbytes);
930 if (code != 0) {
931 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 931);}while(0); afs_global_owner = pthread_self(); } while(
0);
932 afs_Trace2(afs_iclSetp, CM_TRACE_FETCH64CODE,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event2(afs_iclSetp, (701087865L), (1<<24)+((2)
<<18)+((7)<<12), (long)(avc), (long)(code)) : 0)
933 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event2(afs_iclSetp, (701087865L), (1<<24)+((2)
<<18)+((7)<<12), (long)(avc), (long)(code)) : 0);
934 } else {
935 bytes = rx_Read(v->call, (char *)&length_hi, sizeof(afs_int32))rx_ReadProc(v->call, (char *)&length_hi, sizeof(afs_int32
));
936 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 936);}while(0); afs_global_owner = pthread_self(); } while(
0);
937 if (bytes == sizeof(afs_int32)) {
938 length_hi = ntohl(length_hi)(__builtin_constant_p(length_hi) ? ((((__uint32_t)(length_hi)
) >> 24) | ((((__uint32_t)(length_hi)) & (0xff <<
16)) >> 8) | ((((__uint32_t)(length_hi)) & (0xff <<
8)) << 8) | (((__uint32_t)(length_hi)) << 24)) :
__bswap32_var(length_hi));
939 } else {
940 code = rx_Error(v->call)((v->call)->error);
941 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 941);}while(0); } while(0);
942 code1 = rx_EndCall(v->call, code);
943 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 943);}while(0); afs_global_owner = pthread_self(); } while(
0);
944 v->call = NULL((void *)0);
945 }
946 }
947 }
948 if (code == RXGEN_OPCODE-455 || afs_serverHasNo64Bit(tc)(((struct sa_conn_vector*)(tc)->parent)->srvr->server
->flags & 0x200)) {
949 if (base > 0x7FFFFFFF) {
950 code = EFBIG27;
951 } else {
952 afs_uint32 pos;
953 pos = base;
954 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 954);}while(0); } while(0);
955 if (!v->call)
956 v->call = rx_NewCall(rxconn);
957 code =
958 StartRXAFS_FetchData(
959 v->call, (struct AFSFid*)&avc->f.fidusr_fid.Fid,
960 pos, size);
961 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 961);}while(0); afs_global_owner = pthread_self(); } while(
0);
962 }
963 afs_serverSetNo64Bit(tc)(((struct sa_conn_vector*)(tc)->parent)->srvr->server
->flags |= 0x200);
964 }
965 if (!code) {
966 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 966);}while(0); } while(0);
967 bytes = rx_Read(v->call, (char *)&length, sizeof(afs_int32))rx_ReadProc(v->call, (char *)&length, sizeof(afs_int32
));
968 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 968);}while(0); afs_global_owner = pthread_self(); } while(
0);
969 if (bytes == sizeof(afs_int32))
970 length = ntohl(length)(__builtin_constant_p(length) ? ((((__uint32_t)(length)) >>
24) | ((((__uint32_t)(length)) & (0xff << 16)) >>
8) | ((((__uint32_t)(length)) & (0xff << 8)) <<
8) | (((__uint32_t)(length)) << 24)) : __bswap32_var(length
));
971 else {
972 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 972);}while(0); } while(0);
973 code = rx_Error(v->call)((v->call)->error);
974 code1 = rx_EndCall(v->call, code);
975 v->call = NULL((void *)0);
976 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 976);}while(0); afs_global_owner = pthread_self(); } while(
0);
977 }
978 }
979 FillInt64(length64, length_hi, length)(length64) = ((afs_int64)(length_hi) << 32) | (length);;
980 afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64LENG,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087866L), (1<<24)+((2)
<<18)+((7)<<12)+((8)<<6), (long)(avc), (long
)(code), (long)((length64))) : 0)
981 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087866L), (1<<24)+((2)
<<18)+((7)<<12)+((8)<<6), (long)(avc), (long
)(code), (long)((length64))) : 0)
982 ICL_TYPE_OFFSET,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087866L), (1<<24)+((2)
<<18)+((7)<<12)+((8)<<6), (long)(avc), (long
)(code), (long)((length64))) : 0)
983 ICL_HANDLE_OFFSET(length64))(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087866L), (1<<24)+((2)
<<18)+((7)<<12)+((8)<<6), (long)(avc), (long
)(code), (long)((length64))) : 0);
984 *alength = length;
985#else /* AFS_64BIT_CLIENT */
986 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 986);}while(0); } while(0);
987 code = StartRXAFS_FetchData(v->call, (struct AFSFid *)&avc->f.fidusr_fid.Fid,
988 base, size);
989 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 989);}while(0); afs_global_owner = pthread_self(); } while(
0);
990 if (code == 0) {
991 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 991);}while(0); } while(0);
992 bytes =
993 rx_Read(v->call, (char *)&length, sizeof(afs_int32))rx_ReadProc(v->call, (char *)&length, sizeof(afs_int32
));
994 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 994);}while(0); afs_global_owner = pthread_self(); } while(
0);
995 if (bytes == sizeof(afs_int32)) {
996 *alength = ntohl(length)(__builtin_constant_p(length) ? ((((__uint32_t)(length)) >>
24) | ((((__uint32_t)(length)) & (0xff << 16)) >>
8) | ((((__uint32_t)(length)) & (0xff << 8)) <<
8) | (((__uint32_t)(length)) << 24)) : __bswap32_var(length
));
997 } else {
998 code = rx_Error(v->call)((v->call)->error);
999 code1 = rx_EndCall(v->call, code);
1000 v->call = NULL((void *)0);
1001 }
1002 }
1003#endif /* AFS_64BIT_CLIENT */
1004 } else
1005 code = -1;
1006
1007 /* We need to cast here, in order to avoid issues if *alength is
1008 * negative. Some, older, fileservers can return a negative length,
1009 * which the rest of the code deals correctly with. */
1010 if (code == 0 && *alength > (afs_int32) size) {
1011 /* The fileserver told us it is going to send more data than we
1012 * requested. It shouldn't do that, and accepting that much data
1013 * can make us take up more cache space than we're supposed to,
1014 * so error. */
1015 code = rx_Error(v->call)((v->call)->error);
1016 RX_AFS_GUNLOCK()do { do { if (!(pthread_self() == afs_global_owner)) { osi_Panic
("afs global lock not held"); } } while(0); memset(&afs_global_owner
, 0, sizeof(pthread_t)); do{if (!(pthread_mutex_unlock(&afs_global_lock
) == 0)) AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 1016);}while(0); } while(0);
1017 code1 = rx_EndCall(v->call, code);
1018 RX_AFS_GLOCK()do { do{if (!(pthread_mutex_lock(&afs_global_lock) == 0))
AssertionFailed("/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 1018);}while(0); afs_global_owner = pthread_self(); } while
(0);
1019 v->call = NULL((void *)0);
1020 code = EIO5;
1021 }
1022
1023 if (!code && code1)
1024 code = code1;
1025
1026 if (code) {
1027 osi_FreeSmallSpace(v);
1028 return code;
1029 }
1030 if (cacheDiskType == AFS_FCACHE_TYPE_UFS0x0) {
1031 v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ4096);
1032 if (!v->tbuffer)
1033 osi_Panic("rxfs_fetchInit: osi_AllocLargeSpace for iovecs returned NULL\n");
1034 osi_Assert(WriteLocked(&adc->lock))(void)((((&adc->lock)->excl_locked & 2)) || (osi_AssertFailK
( "WriteLocked(&adc->lock)" , "/home/wollman/openafs/src/afs/afs_fetchstore.c"
, 1034), 0));
1035 fP->offset = 0;
1036 *ops = (struct fetchOps *) &rxfs_fetchUfsOps;
1037 }
1038 else {
1039 afs_Trace4(afs_iclSetp, CM_TRACE_MEMFETCH, ICL_TYPE_POINTER, avc,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087876L), (1<<24)+((2)
<<18)+((2)<<12)+((8)<<6)+(7), (long)(avc), (
long)(fP), (long)((base)), (long)(length)) : 0)
1040 ICL_TYPE_POINTER, fP, ICL_TYPE_OFFSET,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087876L), (1<<24)+((2)
<<18)+((2)<<12)+((8)<<6)+(7), (long)(avc), (
long)(fP), (long)((base)), (long)(length)) : 0)
1041 ICL_HANDLE_OFFSET(base), ICL_TYPE_INT32, length)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087876L), (1<<24)+((2)
<<18)+((2)<<12)+((8)<<6)+(7), (long)(avc), (
long)(fP), (long)((base)), (long)(length)) : 0);
1042 /*
1043 * We need to alloc the iovecs on the heap so that they are "pinned"
1044 * rather than declare them on the stack - defect 11272
1045 */
1046 v->iov = osi_AllocSmallSpace(sizeof(struct iovec) * RX_MAXIOVECS16);
1047 if (!v->iov)
1048 osi_Panic("rxfs_fetchInit: osi_AllocSmallSpace for iovecs returned NULL\n");
1049 *ops = (struct fetchOps *) &rxfs_fetchMemOps;
1050 }
1051 *rock = (void *)v;
1052 return 0;
1053}
1054
1055
1056/*!
1057 * Routine called on fetch; also tells people waiting for data
1058 * that more has arrived.
1059 *
1060 * \param tc Ptr to the AFS connection structure.
1061 * \param rxconn Ptr to the Rx connection structure.
1062 * \param fP File descriptor for the cache file.
1063 * \param base Base offset to fetch.
1064 * \param adc Ptr to the dcache entry for the file, write-locked.
1065 * \param avc Ptr to the vcache entry for the file.
1066 * \param size Amount of data that should be fetched.
1067 * \param tsmall Ptr to the afs_FetchOutput structure.
1068 *
1069 * \note Environment: Nothing interesting.
1070 */
1071int
1072afs_CacheFetchProc(struct afs_conn *tc, struct rx_connection *rxconn,
1073 struct osi_file *fP, afs_size_t base,
1074 struct dcache *adc, struct vcache *avc, afs_int32 size,
1075 struct afs_FetchOutput *tsmall)
1076{
1077 afs_int32 code;
1078 afs_int32 length;
1079 afs_uint32 bytesread, byteswritten;
1080 struct fetchOps *ops = NULL((void *)0);
1081 void *rock = NULL((void *)0);
1082 afs_uint32 moredata = 0;
1083 int offset = 0;
1084
1085 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
1086#ifndef AFS_NOSTATS
1087 osi_timeval_t xferStartTime; /*FS xfer start time */
1088 afs_size_t bytesToXfer = 0, bytesXferred = 0;
1089#endif
1090
1091 AFS_STATCNT(CacheFetchProc)((afs_cmstats.callInfo.C_CacheFetchProc)++);
1092
1093 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHDATA)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[0]); osi_GetTime
(&opStartTime);;
1094
1095 /*
1096 * Locks held:
1097 * avc->lock(R) if setLocks && !slowPass
1098 * avc->lock(W) if !setLocks || slowPass
1099 * adc->lock(W)
1100 */
1101 code = rxfs_fetchInit(
1102 tc, rxconn, avc, base, size, &length, adc, fP, &ops, &rock);
1103
1104#ifndef AFS_NOSTATS
1105 osi_GetuTime(&xferStartTime)osi_GetTime(&xferStartTime);
1106#endif /* AFS_NOSTATS */
1107
1108 if (adc) {
1109 adc->validPos = base;
1110 }
1111
1112 if ( !code ) do {
1113 if (avc->f.states & CForeign0x00002000) {
1114 code = (*ops->more)(rock, &length, &moredata);
1115 if ( code )
1116 break;
1117 }
1118#ifndef AFS_NOSTATS
1119 bytesToXfer += length;
1120#endif /* AFS_NOSTATS */
1121 while (length > 0) {
1122#ifdef RX_KERNEL_TRACE
1123 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event1(afs_iclSetp, (701087896L), (1<<24)+((4)
<<18), (long)("before rx_Read")) : 0)
1124 "before rx_Read")(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event1(afs_iclSetp, (701087896L), (1<<24)+((4)
<<18), (long)("before rx_Read")) : 0);
1125#endif
1126 code = (*ops->read)(rock, length, &bytesread);
1127#ifdef RX_KERNEL_TRACE
1128 afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event1(afs_iclSetp, (701087896L), (1<<24)+((4)
<<18), (long)("after rx_Read")) : 0)
1129 "after rx_Read")(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event1(afs_iclSetp, (701087896L), (1<<24)+((4)
<<18), (long)("after rx_Read")) : 0);
1130#endif
1131#ifndef AFS_NOSTATS
1132 bytesXferred += bytesread;
1133#endif /* AFS_NOSTATS */
1134 if ( code ) {
1135 afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64READ,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087867L), (1<<24)+((2)
<<18)+((7)<<12)+((7)<<6), (long)(avc), (long
)(code), (long)(length)) : 0)
1136 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087867L), (1<<24)+((2)
<<18)+((7)<<12)+((7)<<6), (long)(avc), (long
)(code), (long)(length)) : 0)
1137 ICL_TYPE_INT32, length)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087867L), (1<<24)+((2)
<<18)+((7)<<12)+((7)<<6), (long)(avc), (long
)(code), (long)(length)) : 0);
1138 code = -34;
1139 break;
1140 }
1141 code = (*ops->write)(rock, fP, offset, bytesread, &byteswritten);
1142 if ( code )
1143 break;
1144 offset += bytesread;
1145 base += bytesread;
1146 length -= bytesread;
1147 adc->validPos = base;
1148 if (afs_osi_Wakeup(&adc->validPos) == 0)
1149 afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE, ICL_TYPE_STRING,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087894L), (1<<24)+((4)
<<18)+((7)<<12)+((2)<<6)+(7), (long)("/home/wollman/openafs/src/afs/afs_fetchstore.c"
), (long)(1150), (long)(adc), (long)(adc->dflags)) : 0)
1150 __FILE__, ICL_TYPE_INT32, __LINE__,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087894L), (1<<24)+((4)
<<18)+((7)<<12)+((2)<<6)+(7), (long)("/home/wollman/openafs/src/afs/afs_fetchstore.c"
), (long)(1150), (long)(adc), (long)(adc->dflags)) : 0)
1151 ICL_TYPE_POINTER, adc, ICL_TYPE_INT32,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087894L), (1<<24)+((4)
<<18)+((7)<<12)+((2)<<6)+(7), (long)("/home/wollman/openafs/src/afs/afs_fetchstore.c"
), (long)(1150), (long)(adc), (long)(adc->dflags)) : 0)
1152 adc->dflags)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event4(afs_iclSetp, (701087894L), (1<<24)+((4)
<<18)+((7)<<12)+((2)<<6)+(7), (long)("/home/wollman/openafs/src/afs/afs_fetchstore.c"
), (long)(1150), (long)(adc), (long)(adc->dflags)) : 0);
1153 }
1154 code = 0;
1155 } while (moredata);
1156 if (!code)
1157 code = (*ops->close)(rock, avc, adc, tsmall);
1158 if (ops)
1159 (*ops->destroy)(&rock, code);
1160
1161#ifndef AFS_NOSTATS
1162 FillStoreStats(code, AFS_STATS_FS_XFERIDX_FETCHDATA0, &xferStartTime,
1163 bytesToXfer, bytesXferred);
1164#endif
1165 XSTATS_END_TIMEosi_GetTime(&opStopTime); (opP->numOps)++; if (!code) {
(opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
1166 return code;
1167}