#include "afs/afs_stats.h" /* statistics */
#include "afs_prototypes.h"
-/*
- * afs_UFSCacheStoreProc
- *
- * Description:
- * Called upon store.
- *
- * Parameters:
- * acall : Ptr to the Rx call structure involved.
- * afile : Ptr to the related file descriptor.
- * alen : Size of the file in bytes.
- * avc : Ptr to the vcache entry.
- * shouldWake : is it "safe" to return early from close() ?
- * abytesToXferP : Set to the number of bytes to xfer.
- * NOTE: This parameter is only used if AFS_NOSTATS
- * is not defined.
- * abytesXferredP : Set to the number of bytes actually xferred.
- * NOTE: This parameter is only used if AFS_NOSTATS
- * is not defined.
- *
- * Environment:
- * Nothing interesting.
- */
-int
-afs_UFSCacheStoreProc(register struct rx_call *acall, struct osi_file *afile,
- register afs_int32 alen, struct vcache *avc,
- int *shouldWake, afs_size_t * abytesToXferP,
- afs_size_t * abytesXferredP)
-{
- afs_int32 code, got;
- register char *tbuffer;
- register int tlen;
+extern int cacheDiskType;
- AFS_STATCNT(UFS_CacheStoreProc);
#ifndef AFS_NOSTATS
- /*
- * In this case, alen is *always* the amount of data we'll be trying
- * to ship here.
- */
- (*abytesToXferP) = alen;
- (*abytesXferredP) = 0;
+void
+FillStoreStats(int code, int idx, osi_timeval_t *xferStartTime,
+ afs_size_t bytesToXfer, afs_size_t bytesXferred)
+{
+ struct afs_stats_xferData *xferP;
+ osi_timeval_t xferStopTime;
+ osi_timeval_t elapsedTime;
+
+ xferP = &(afs_stats_cmfullperf.rpc.fsXferTimes[idx]);
+ osi_GetuTime(&xferStopTime);
+ (xferP->numXfers)++;
+ if (!code) {
+ (xferP->numSuccesses)++;
+ afs_stats_XferSumBytes[idx] += bytesXferred;
+ (xferP->sumBytes) += (afs_stats_XferSumBytes[idx] >> 10);
+ afs_stats_XferSumBytes[idx] &= 0x3FF;
+ if (bytesXferred < xferP->minBytes)
+ xferP->minBytes = bytesXferred;
+ if (bytesXferred > xferP->maxBytes)
+ xferP->maxBytes = bytesXferred;
+
+ /*
+ * Tally the size of the object. Note: we tally the actual size,
+ * NOT the number of bytes that made it out over the wire.
+ */
+ if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET0) (xferP->count[0])++;
+ else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET1) (xferP->count[1])++;
+ else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET2) (xferP->count[2])++;
+ else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET3) (xferP->count[3])++;
+ else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET4) (xferP->count[4])++;
+ else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET5) (xferP->count[5])++;
+ else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET6) (xferP->count[6])++;
+ else if (bytesToXfer <= AFS_STATS_MAXBYTES_BUCKET7) (xferP->count[7])++;
+ else
+ (xferP->count[8])++;
+
+ afs_stats_GetDiff(elapsedTime, (*xferStartTime), xferStopTime);
+ afs_stats_AddTo((xferP->sumTime), elapsedTime);
+ afs_stats_SquareAddTo((xferP->sqrTime), elapsedTime);
+ if (afs_stats_TimeLessThan(elapsedTime, (xferP->minTime))) {
+ afs_stats_TimeAssign((xferP->minTime), elapsedTime);
+ }
+ if (afs_stats_TimeGreaterThan(elapsedTime, (xferP->maxTime))) {
+ afs_stats_TimeAssign((xferP->maxTime), elapsedTime);
+ }
+ }
+}
#endif /* AFS_NOSTATS */
- afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
- ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, alen);
- tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
- while (alen > 0) {
- tlen = (alen > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : alen);
- got = afs_osi_Read(afile, -1, tbuffer, tlen);
- if ((got < 0)
+/* rock and operations for RX_FILESERVER */
+
+
+
+afs_int32
+rxfs_storeUfsPrepare(void *r, afs_uint32 size, afs_uint32 *tlen)
+{
+ *tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
+ return 0;
+}
+
+afs_int32
+rxfs_storeMemPrepare(void *r, afs_uint32 size, afs_uint32 *tlen)
+{
+ afs_int32 code;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *) r;
+
+ *tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
+ RX_AFS_GUNLOCK();
+ code = rx_WritevAlloc(v->call, v->tiov, &v->tnio, RX_MAXIOVECS, *tlen);
+ RX_AFS_GLOCK();
+ if (code <= 0) {
+ code = rx_Error(v->call);
+ if (!code)
+ code = -33;
+ }
+ else {
+ *tlen = code;
+ code = 0;
+ }
+ return code;
+}
+
+afs_int32
+rxfs_storeUfsRead(void *r, struct osi_file *tfile, afs_uint32 offset,
+ afs_uint32 tlen, afs_uint32 *bytesread)
+{
+ afs_int32 code;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
+
+ *bytesread = 0;
+ code = afs_osi_Read(tfile, -1, v->tbuffer, tlen);
+ if (code < 0)
+ return EIO;
+ *bytesread = code;
+ if (code == tlen)
+ return 0;
#if defined(KERNEL_HAVE_UERROR)
- || (got != tlen && getuerror())
+ if (getuerror())
+ return EIO;
#endif
- ) {
- osi_FreeLargeSpace(tbuffer);
- return EIO;
- }
- afs_Trace2(afs_iclSetp, CM_TRACE_STOREPROC2, ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(*tbuffer), ICL_TYPE_INT32, got);
+ return 0;
+}
+
+afs_int32
+rxfs_storeMemRead(void *r, struct osi_file *tfile, afs_uint32 offset,
+ afs_uint32 tlen, afs_uint32 *bytesread)
+{
+ afs_int32 code;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
+ struct memCacheEntry *mceP = (struct memCacheEntry *)tfile;
+
+ *bytesread = 0;
+ code = afs_MemReadvBlk(mceP, offset, v->tiov, v->tnio, tlen);
+ if (code != tlen)
+ return -33;
+ *bytesread = code;
+ return 0;
+}
+
+afs_int32
+rxfs_storeMemWrite(void *r, afs_uint32 l, afs_uint32 *byteswritten)
+{
+ afs_int32 code;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
+
+ RX_AFS_GUNLOCK();
+ code = rx_Writev(v->call, v->tiov, v->tnio, l);
+ RX_AFS_GLOCK();
+ if (code != l) {
+ code = rx_Error(v->call);
+ return (code ? code : -33);
+ }
+ *byteswritten = code;
+ return 0;
+}
+
+afs_int32
+rxfs_storeUfsWrite(void *r, afs_uint32 l, afs_uint32 *byteswritten)
+{
+ afs_int32 code;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
+
+ RX_AFS_GUNLOCK();
+ code = rx_Write(v->call, v->tbuffer, l);
+ /* writing 0 bytes will
+ * push a short packet. Is that really what we want, just because the
+ * data didn't come back from the disk yet? Let's try it and see. */
+ RX_AFS_GLOCK();
+ if (code != l) {
+ code = rx_Error(v->call);
+ return (code ? code : -33);
+ }
+ *byteswritten = code;
+ return 0;
+}
+
+afs_int32
+rxfs_storePadd(void *rock, afs_uint32 size)
+{
+ afs_int32 code = 0;
+ afs_uint32 tlen;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)rock;
+
+ if (!v->tbuffer)
+ v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
+ memset(v->tbuffer, 0, AFS_LRALLOCSIZ);
+
+ while (size) {
+ tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
+ RX_AFS_GUNLOCK();
+ code = rx_Write(v->call, v->tbuffer, tlen);
+ RX_AFS_GLOCK();
+
+ if (code != tlen)
+ return -33; /* XXX */
+ size -= tlen;
+ }
+ return 0;
+}
+
+afs_int32
+rxfs_storeStatus(void *rock)
+{
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)rock;
+
+ if (rx_GetRemoteStatus(v->call) & 1)
+ return 0;
+ return 1;
+}
+
+afs_int32
+rxfs_storeClose(void *r, struct AFSFetchStatus *OutStatus, int *doProcessFS)
+{
+ afs_int32 code;
+ struct AFSVolSync tsync;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)r;
+
+ if (!v->call)
+ return -1;
+ RX_AFS_GUNLOCK();
+#ifdef AFS_64BIT_CLIENT
+ if (!v->hasNo64bit)
+ code = EndRXAFS_StoreData64(v->call, OutStatus, &tsync);
+ else
+#endif
+ code = EndRXAFS_StoreData(v->call, OutStatus, &tsync);
+ RX_AFS_GLOCK();
+ if (!code)
+ *doProcessFS = 1; /* Flag to run afs_ProcessFS() later on */
+
+ return code;
+}
+
+afs_int32
+rxfs_storeDestroy(void **r, afs_int32 error)
+{
+ afs_int32 code = error;
+ struct rxfs_storeVariables *v = (struct rxfs_storeVariables *)*r;
+
+ *r = NULL;
+ if (v->call) {
RX_AFS_GUNLOCK();
- code = rx_Write(acall, tbuffer, got); /* writing 0 bytes will
- * push a short packet. Is that really what we want, just because the
- * data didn't come back from the disk yet? Let's try it and see. */
+ code = rx_EndCall(v->call, error);
RX_AFS_GLOCK();
+ if (!code && error)
+ code = error;
+ }
+ if (v->tbuffer)
+ osi_FreeLargeSpace(v->tbuffer);
+ if (v->tiov)
+ osi_FreeSmallSpace(v->tiov);
+ osi_FreeSmallSpace(v);
+ return code;
+}
+
+afs_int32
+afs_GenericStoreProc(struct storeOps *ops, void *rock,
+ struct dcache *tdc, int *shouldwake,
+ afs_size_t *bytesXferred)
+{
+ struct rxfs_storeVariables *svar = rock;
+ afs_uint32 tlen, bytesread, byteswritten;
+ afs_int32 code;
+ int offset = 0;
+ afs_size_t size;
+ struct osi_file *tfile;
+
+ size = tdc->f.chunkBytes;
+
+ tfile = afs_CFileOpen(&tdc->f.inode);
+
+ while ( size > 0 ) {
+ code = (*ops->prepare)(rock, size, &tlen);
+ if ( code )
+ break;
+
+ code = (*ops->read)(rock, tfile, offset, tlen, &bytesread);
+ if (code)
+ break;
+
+ tlen = bytesread;
+ code = (*ops->write)(rock, tlen, &byteswritten);
+ if (code)
+ break;
#ifndef AFS_NOSTATS
- (*abytesXferredP) += code;
+ *bytesXferred += byteswritten;
#endif /* AFS_NOSTATS */
- if (code != got) {
- code = rx_Error(acall);
- osi_FreeLargeSpace(tbuffer);
- return code ? code : -33;
- }
- alen -= got;
+
+ offset += tlen;
+ size -= tlen;
/*
- * If file has been locked on server, we can allow the store
- * to continue.
+ * if file has been locked on server, can allow
+ * store to continue
*/
- if (shouldWake && *shouldWake && (rx_GetRemoteStatus(acall) & 1)) {
- *shouldWake = 0; /* only do this once */
- afs_wakeup(avc);
+ if (shouldwake && *shouldwake && ((*ops->status)(rock) == 0)) {
+ *shouldwake = 0; /* only do this once */
+ afs_wakeup(svar->vcache);
}
}
- afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
- ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, alen);
- osi_FreeLargeSpace(tbuffer);
- return 0;
+ afs_CFileClose(tfile);
+
+ return code;
+}
-} /* afs_UFSCacheStoreProc */
+static
+struct storeOps rxfs_storeUfsOps = {
+#if (defined(AFS_SGI_ENV) && !defined(__c99))
+ rxfs_storeUfsPrepare,
+ rxfs_storeUfsRead,
+ rxfs_storeUfsWrite,
+ rxfs_storeStatus,
+ rxfs_storePadd,
+ rxfs_storeClose,
+ rxfs_storeDestroy,
+ afs_GenericStoreProc
+#else
+ .prepare = rxfs_storeUfsPrepare,
+ .read = rxfs_storeUfsRead,
+ .write = rxfs_storeUfsWrite,
+ .status = rxfs_storeStatus,
+ .padd = rxfs_storePadd,
+ .close = rxfs_storeClose,
+ .destroy = rxfs_storeDestroy,
+#ifdef AFS_LINUX26_ENV
+ .storeproc = afs_linux_storeproc
+#else
+ .storeproc = afs_GenericStoreProc
+#endif
+#endif
+};
+static
+struct storeOps rxfs_storeMemOps = {
+#if (defined(AFS_SGI_ENV) && !defined(__c99))
+ rxfs_storeMemPrepare,
+ rxfs_storeMemRead,
+ rxfs_storeMemWrite,
+ rxfs_storeStatus,
+ rxfs_storePadd,
+ rxfs_storeClose,
+ rxfs_storeDestroy,
+ afs_GenericStoreProc
+#else
+ .prepare = rxfs_storeMemPrepare,
+ .read = rxfs_storeMemRead,
+ .write = rxfs_storeMemWrite,
+ .status = rxfs_storeStatus,
+ .padd = rxfs_storePadd,
+ .close = rxfs_storeClose,
+ .destroy = rxfs_storeDestroy,
+#ifdef AFS_LINUX26_ENV
+ .storeproc = afs_linux_storeproc
+#else
+ .storeproc = afs_GenericStoreProc
+#endif
+#endif
+};
-/*
- * afs_UFSCacheFetchProc
- *
- * Description:
- * Routine called on fetch; also tells people waiting for data
- * that more has arrived.
- *
- * Parameters:
- * acall : Ptr to the Rx call structure.
- * afile : File descriptor for the cache file.
- * abase : Base offset to fetch.
- * adc : Ptr to the dcache entry for the file, write-locked.
- * avc : Ptr to the vcache entry for the file.
- * abytesToXferP : Set to the number of bytes to xfer.
- * NOTE: This parameter is only used if AFS_NOSTATS
- * is not defined.
- * abytesXferredP : Set to the number of bytes actually xferred.
- * NOTE: This parameter is only used if AFS_NOSTATS
- * is not defined.
+afs_int32
+rxfs_storeInit(struct vcache *avc, struct afs_conn *tc, afs_size_t base,
+ afs_size_t bytes, afs_size_t length,
+ int sync, struct storeOps **ops, void **rock)
+{
+ afs_int32 code;
+ struct rxfs_storeVariables *v;
+
+ if ( !tc )
+ return -1;
+
+ v = (struct rxfs_storeVariables *) osi_AllocSmallSpace(sizeof(struct rxfs_storeVariables));
+ if (!v)
+ osi_Panic("rxfs_storeInit: osi_AllocSmallSpace returned NULL\n");
+ memset(v, 0, sizeof(struct rxfs_storeVariables));
+
+ v->InStatus.ClientModTime = avc->f.m.Date;
+ v->InStatus.Mask = AFS_SETMODTIME;
+ v->vcache = avc;
+ if (sync & AFS_SYNC)
+ v->InStatus.Mask |= AFS_FSYNC;
+ RX_AFS_GUNLOCK();
+ v->call = rx_NewCall(tc->id);
+ if (v->call) {
+#ifdef AFS_64BIT_CLIENT
+ if (!afs_serverHasNo64Bit(tc))
+ code = StartRXAFS_StoreData64(
+ v->call, (struct AFSFid*)&avc->f.fid.Fid,
+ &v->InStatus, base, bytes, length);
+ else
+ if (length > 0xFFFFFFFF)
+ code = EFBIG;
+ else {
+ afs_int32 t1 = base, t2 = bytes, t3 = length;
+ code = StartRXAFS_StoreData(v->call,
+ (struct AFSFid *) &avc->f.fid.Fid,
+ &v->InStatus, t1, t2, t3);
+ }
+#else /* AFS_64BIT_CLIENT */
+ code = StartRXAFS_StoreData(v->call, (struct AFSFid *)&avc->f.fid.Fid,
+ &v->InStatus, base, bytes, length);
+#endif /* AFS_64BIT_CLIENT */
+ } else
+ code = -1;
+ RX_AFS_GLOCK();
+ if (code) {
+ osi_FreeSmallSpace(v);
+ return code;
+ }
+ if (cacheDiskType == AFS_FCACHE_TYPE_UFS) {
+ v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
+ if (!v->tbuffer)
+ osi_Panic
+ ("rxfs_storeInit: osi_AllocLargeSpace for iovecs returned NULL\n");
+ *ops = (struct storeOps *) &rxfs_storeUfsOps;
+ } else {
+ v->tiov = osi_AllocSmallSpace(sizeof(struct iovec) * RX_MAXIOVECS);
+ if (!v->tiov)
+ osi_Panic
+ ("rxfs_storeInit: osi_AllocSmallSpace for iovecs returned NULL\n");
+ *ops = (struct storeOps *) &rxfs_storeMemOps;
+#ifdef notdef
+ /* do this at a higher level now -- it's a parameter */
+ /* for now, only do 'continue from close' code if file fits in one
+ * chunk. Could clearly do better: if only one modified chunk
+ * then can still do this. can do this on *last* modified chunk */
+ length = avc->f.m.Length - 1; /* byte position of last byte we'll store */
+ if (shouldWake) {
+ if (AFS_CHUNK(length) != 0)
+ *shouldWake = 0;
+ else
+ *shouldWake = 1;
+ }
+#endif /* notdef */
+ }
+
+ *rock = (void *)v;
+ return 0;
+}
+unsigned int storeallmissing = 0;
+/*!
+ * Called for each chunk upon store.
*
- * Environment:
- * Nothing interesting.
+ * \param avc Ptr to the vcache entry of the file being stored.
+ * \param dclist pointer to the list of dcaches
+ * \param bytes total number of bytes for the current operation
+ * \param anewDV Ptr to the dataversion after store
+ * \param doProcessFS pointer to the "do process FetchStatus" flag
+ * \param OutStatus pointer to the FetchStatus as returned by the fileserver
+ * \param nchunks number of dcaches to consider
+ * \param nomore copy of the "no more data" flag
+ * \param ops pointer to the block of storeOps to be used for this operation
+ * \param rock pointer to the opaque protocol-specific data of this operation
*/
-
-int
-afs_UFSCacheFetchProc(register struct rx_call *acall, struct osi_file *afile,
- afs_size_t abase, struct dcache *adc,
- struct vcache *avc, afs_size_t * abytesToXferP,
- afs_size_t * abytesXferredP, afs_int32 lengthFound)
+afs_int32
+afs_CacheStoreDCaches(struct vcache *avc, struct dcache **dclist,
+ afs_size_t bytes,
+ afs_hyper_t *anewDV,
+ int *doProcessFS,
+ struct AFSFetchStatus *OutStatus,
+ afs_uint32 nchunks,
+ int nomore,
+ struct storeOps *ops, void *rock)
{
- afs_int32 length;
- register afs_int32 code;
- register char *tbuffer;
- register int tlen;
- int moredata = 0;
-
- AFS_STATCNT(UFS_CacheFetchProc);
- osi_Assert(WriteLocked(&adc->lock));
- afile->offset = 0; /* Each time start from the beginning */
- length = lengthFound;
+ int *shouldwake = NULL;
+ unsigned int i;
+ afs_int32 code = 0;
+ afs_size_t bytesXferred;
+
#ifndef AFS_NOSTATS
- (*abytesToXferP) = 0;
- (*abytesXferredP) = 0;
+ osi_timeval_t xferStartTime; /*FS xfer start time */
+ afs_size_t bytesToXfer = 10000; /* # bytes to xfer */
#endif /* AFS_NOSTATS */
- tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
- adc->validPos = abase;
- do {
- if (moredata) {
- RX_AFS_GUNLOCK();
- code = rx_Read(acall, (char *)&length, sizeof(afs_int32));
- RX_AFS_GLOCK();
- length = ntohl(length);
- if (code != sizeof(afs_int32)) {
- osi_FreeLargeSpace(tbuffer);
- code = rx_Error(acall);
- return (code ? code : -1); /* try to return code, not -1 */
+ XSTATS_DECLS;
+
+ for (i = 0; i < nchunks && !code; i++) {
+ int stored = 0;
+ struct dcache *tdc = dclist[i];
+ afs_int32 size = tdc->f.chunkBytes;
+ if (!tdc) {
+ afs_warn("afs: missing dcache!\n");
+ storeallmissing++;
+ continue; /* panic? */
+ }
+ afs_Trace4(afs_iclSetp, CM_TRACE_STOREALL2, ICL_TYPE_POINTER, avc,
+ ICL_TYPE_INT32, tdc->f.chunk, ICL_TYPE_INT32, tdc->index,
+ ICL_TYPE_INT32, afs_inode2trace(&tdc->f.inode));
+ shouldwake = 0;
+ if (nomore) {
+ if (avc->asynchrony == -1) {
+ if (afs_defaultAsynchrony > (bytes - stored))
+ shouldwake = &nomore;
}
+ else if ((afs_uint32) avc->asynchrony >= (bytes - stored))
+ shouldwake = &nomore;
}
+
+ afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
+ ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, size);
+
+ AFS_STATCNT(CacheStoreProc);
+
+ XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREDATA);
+ avc->f.truncPos = AFS_NOTRUNC;
+#ifndef AFS_NOSTATS
/*
- * The fetch protocol is extended for the AFS/DFS translator
- * to allow multiple blocks of data, each with its own length,
- * to be returned. As long as the top bit is set, there are more
- * blocks expected.
- *
- * We do not do this for AFS file servers because they sometimes
- * return large negative numbers as the transfer size.
+ * In this case, size is *always* the amount of data we'll be trying
+ * to ship here.
*/
- if (avc->f.states & CForeign) {
- moredata = length & 0x80000000;
- length &= ~0x80000000;
- } else {
- moredata = 0;
- }
-#ifndef AFS_NOSTATS
- (*abytesToXferP) += length;
+ bytesToXfer = size;
+
+ osi_GetuTime(&xferStartTime);
#endif /* AFS_NOSTATS */
- while (length > 0) {
- tlen = (length > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : length);
-#ifdef RX_KERNEL_TRACE
- afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
- "before rx_Read");
-#endif
- RX_AFS_GUNLOCK();
- code = rx_Read(acall, tbuffer, tlen);
- RX_AFS_GLOCK();
-#ifdef RX_KERNEL_TRACE
- afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
- "after rx_Read");
-#endif
+ bytesXferred = 0;
+
+ code = (*ops->storeproc)(ops, rock, tdc, shouldwake,
+ &bytesXferred);
+
+ afs_Trace4(afs_iclSetp, CM_TRACE_STOREPROC, ICL_TYPE_POINTER, avc,
+ ICL_TYPE_FID, &(avc->f.fid), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(avc->f.m.Length), ICL_TYPE_INT32, size);
+
#ifndef AFS_NOSTATS
- (*abytesXferredP) += code;
+ FillStoreStats(code, AFS_STATS_FS_XFERIDX_STOREDATA,
+ &xferStartTime, bytesToXfer, bytesXferred);
#endif /* AFS_NOSTATS */
- if (code != tlen) {
- osi_FreeLargeSpace(tbuffer);
- afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64READ,
- ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
- ICL_TYPE_INT32, length);
- return -34;
+
+ if ((tdc->f.chunkBytes < afs_OtherCSize)
+ && (i < (nchunks - 1)) && code == 0) {
+ code = (*ops->padd)(rock, afs_OtherCSize - tdc->f.chunkBytes);
+ }
+ stored += tdc->f.chunkBytes;
+ /* ideally, I'd like to unlock the dcache and turn
+ * off the writing bit here, but that would
+ * require being able to retry StoreAllSegments in
+ * the event of a failure. It only really matters
+ * if user can't read from a 'locked' dcache or
+ * one which has the writing bit turned on. */
+ }
+
+ if (!code) {
+ code = (*ops->close)(rock, OutStatus, doProcessFS);
+ if (*doProcessFS) {
+ hadd32(*anewDV, 1);
+ }
+ XSTATS_END_TIME;
+ }
+ if (ops)
+ code = (*ops->destroy)(&rock, code);
+ return code;
+}
+
+#define lmin(a,b) (((a) < (b)) ? (a) : (b))
+/*!
+ * Called upon store.
+ *
+ * \param dclist pointer to the list of dcaches
+ * \param avc Ptr to the vcache entry.
+ * \param areq Ptr to the request structure
+ * \param sync sync flag
+ * \param minj the chunk offset for this call
+ * \param high index of last dcache to store
+ * \param moredata the moredata flag
+ * \param anewDV Ptr to the dataversion after store
+ * \param amaxStoredLength Ptr to the amount of that is actually stored
+ *
+ * \note Environment: Nothing interesting.
+ */
+int
+afs_CacheStoreVCache(struct dcache **dcList, struct vcache *avc,
+ struct vrequest *areq, int sync,
+ unsigned int minj, unsigned int high,
+ unsigned int moredata,
+ afs_hyper_t *anewDV, afs_size_t *amaxStoredLength)
+{
+ afs_int32 code = 0;
+ struct storeOps *ops;
+ void * rock = NULL;
+ unsigned int i, j;
+
+ struct AFSFetchStatus OutStatus;
+ int doProcessFS = 0;
+ afs_size_t base, bytes, length;
+ int nomore;
+ unsigned int first = 0;
+ struct afs_conn *tc;
+
+ for (bytes = 0, j = 0; !code && j <= high; j++) {
+ if (dcList[j]) {
+ ObtainSharedLock(&(dcList[j]->lock), 629);
+ if (!bytes)
+ first = j;
+ bytes += dcList[j]->f.chunkBytes;
+ if ((dcList[j]->f.chunkBytes < afs_OtherCSize)
+ && (dcList[j]->f.chunk - minj < high)
+ && dcList[j + 1]) {
+ int sbytes = afs_OtherCSize - dcList[j]->f.chunkBytes;
+ bytes += sbytes;
+ }
+ }
+ if (bytes && (j == high || !dcList[j + 1])) {
+ afs_uint32 nchunks;
+ struct dcache **dclist = &dcList[first];
+ /* base = AFS_CHUNKTOBASE(dcList[first]->f.chunk); */
+ base = AFS_CHUNKTOBASE(first + minj);
+ /*
+ *
+ * take a list of dcache structs and send them all off to the server
+ * the list must be in order, and the chunks contiguous.
+ * Note - there is no locking done by this code currently. For
+ * safety's sake, xdcache could be locked over the entire call.
+ * However, that pretty well ties up all the threads. Meantime, all
+ * the chunks _MUST_ have their refcounts bumped.
+ * The writes done before a store back will clear setuid-ness
+ * in cache file.
+ * We can permit CacheStoreProc to wake up the user process IFF we
+ * are doing the last RPC for this close, ie, storing back the last
+ * set of contiguous chunks of a file.
+ */
+
+ nchunks = 1 + j - first;
+ nomore = !(moredata || (j != high));
+ length = lmin(avc->f.m.Length, avc->f.truncPos);
+ afs_Trace4(afs_iclSetp, CM_TRACE_STOREDATA64,
+ ICL_TYPE_FID, &avc->f.fid.Fid, ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(base), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(bytes), ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(length));
+
+ do {
+ tc = afs_Conn(&avc->f.fid, areq, 0);
+
+#ifdef AFS_64BIT_CLIENT
+ restart:
+#endif
+ code = rxfs_storeInit(avc, tc, base, bytes, length,
+ sync, &ops, &rock);
+ if ( !code ) {
+ code = afs_CacheStoreDCaches(avc, dclist, bytes, anewDV,
+ &doProcessFS, &OutStatus,
+ nchunks, nomore, ops, rock);
+ }
+
+#ifdef AFS_64BIT_CLIENT
+ if (code == RXGEN_OPCODE && !afs_serverHasNo64Bit(tc)) {
+ afs_serverSetNo64Bit(tc);
+ goto restart;
+ }
+#endif /* AFS_64BIT_CLIENT */
+ } while (afs_Analyze
+ (tc, code, &avc->f.fid, areq,
+ AFS_STATS_FS_RPCIDX_STOREDATA, SHARED_LOCK,
+ NULL));
+
+ /* put back all remaining locked dcache entries */
+ for (i = 0; i < nchunks; i++) {
+ struct dcache *tdc = dclist[i];
+ if (!code) {
+ if (afs_indexFlags[tdc->index] & IFDataMod) {
+ /*
+ * LOCKXXX -- should hold afs_xdcache(W) when
+ * modifying afs_indexFlags.
+ */
+ afs_indexFlags[tdc->index] &= ~IFDataMod;
+ afs_stats_cmperf.cacheCurrDirtyChunks--;
+ afs_indexFlags[tdc->index] &= ~IFDirtyPages;
+ if (sync & AFS_VMSYNC_INVAL) {
+ /* since we have invalidated all the pages of this
+ ** vnode by calling osi_VM_TryToSmush, we can
+ ** safely mark this dcache entry as not having
+ ** any pages. This vnode now becomes eligible for
+ ** reclamation by getDownD.
+ */
+ afs_indexFlags[tdc->index] &= ~IFAnyPages;
+ }
+ }
+ }
+ UpgradeSToWLock(&tdc->lock, 628);
+ tdc->f.states &= ~DWriting; /* correct? */
+ tdc->dflags |= DFEntryMod;
+ ReleaseWriteLock(&tdc->lock);
+ afs_PutDCache(tdc);
+ /* Mark the entry as released */
+ dclist[i] = NULL;
}
- code = afs_osi_Write(afile, -1, tbuffer, tlen);
- if (code != tlen) {
- osi_FreeLargeSpace(tbuffer);
- return EIO;
+
+ if (doProcessFS) {
+ /* Now copy out return params */
+ UpgradeSToWLock(&avc->lock, 28); /* keep out others for a while */
+ afs_ProcessFS(avc, &OutStatus, areq);
+ /* Keep last (max) size of file on server to see if
+ * we need to call afs_StoreMini to extend the file.
+ */
+ if (!moredata)
+ *amaxStoredLength = OutStatus.Length;
+ ConvertWToSLock(&avc->lock);
+ doProcessFS = 0;
}
- abase += tlen;
- length -= tlen;
- adc->validPos = abase;
- if (afs_osi_Wakeup(&adc->validPos) == 0)
- afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE, ICL_TYPE_STRING,
- __FILE__, ICL_TYPE_INT32, __LINE__,
- ICL_TYPE_POINTER, adc, ICL_TYPE_INT32,
- adc->dflags);
+
+ if (code) {
+ for (j++; j <= high; j++) {
+ if (dcList[j]) {
+ ReleaseSharedLock(&(dcList[j]->lock));
+ afs_PutDCache(dcList[j]);
+ /* Releasing entry */
+ dcList[j] = NULL;
+ }
+ }
+ }
+
+ afs_Trace2(afs_iclSetp, CM_TRACE_STOREALLDCDONE,
+ ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code);
+ bytes = 0;
}
- } while (moredata);
- osi_FreeLargeSpace(tbuffer);
+ }
+
+ return code;
+}
+
+/* rock and operations for RX_FILESERVER */
+
+struct rxfs_fetchVariables {
+ struct rx_call *call;
+ char *tbuffer;
+ struct iovec *iov;
+ afs_int32 nio;
+ afs_int32 hasNo64bit;
+ afs_int32 iovno;
+ afs_int32 iovmax;
+};
+
+afs_int32
+rxfs_fetchUfsRead(void *r, afs_uint32 size, afs_uint32 *bytesread)
+{
+ afs_int32 code;
+ afs_uint32 tlen;
+ struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
+
+ *bytesread = 0;
+ tlen = (size > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : size);
+ RX_AFS_GUNLOCK();
+ code = rx_Read(v->call, v->tbuffer, tlen);
+ RX_AFS_GLOCK();
+ if (code <= 0)
+ return -34;
+ *bytesread = code;
return 0;
+}
-} /* afs_UFSCacheFetchProc */
+afs_int32
+rxfs_fetchMemRead(void *r, afs_uint32 tlen, afs_uint32 *bytesread)
+{
+ afs_int32 code;
+ struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
-int
-afs_MemCacheStoreProc(register struct rx_call *acall,
- register struct osi_file *fP,
- register afs_int32 alen, struct vcache *avc,
- int *shouldWake, afs_size_t * abytesToXferP,
- afs_size_t * abytesXferredP)
+ *bytesread = 0;
+ RX_AFS_GUNLOCK();
+ code = rx_Readv(v->call, v->iov, &v->nio, RX_MAXIOVECS, tlen);
+ RX_AFS_GLOCK();
+ if (code <= 0)
+ return -34;
+ *bytesread = code;
+ return 0;
+}
+
+
+afs_int32
+rxfs_fetchMemWrite(void *r, struct osi_file *fP,
+ afs_uint32 offset, afs_uint32 tlen,
+ afs_uint32 *byteswritten)
{
- register struct memCacheEntry *mceP = (struct memCacheEntry *)fP;
+ afs_int32 code;
+ struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
+ struct memCacheEntry *mceP = (struct memCacheEntry *)fP;
- register afs_int32 code;
- register int tlen;
- int offset = 0;
- struct iovec *tiov; /* no data copying with iovec */
- int tnio; /* temp for iovec size */
+ code = afs_MemWritevBlk(mceP, offset, v->iov, v->nio, tlen);
+ if (code != tlen) {
+ return EIO;
+ }
+ *byteswritten = code;
+ return 0;
+}
- AFS_STATCNT(afs_MemCacheStoreProc);
-#ifndef AFS_NOSTATS
- /*
- * In this case, alen is *always* the amount of data we'll be trying
- * to ship here.
- */
- *(abytesToXferP) = alen;
- *(abytesXferredP) = 0;
-#endif /* AFS_NOSTATS */
+afs_int32
+rxfs_fetchUfsWrite(void *r, struct osi_file *fP,
+ afs_uint32 offset, afs_uint32 tlen,
+ afs_uint32 *byteswritten)
+{
+ afs_int32 code;
+ struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
- /*
- * We need to alloc the iovecs on the heap so that they are "pinned" rather than
- * declare them on the stack - defect 11272
- */
- tiov =
- (struct iovec *)osi_AllocSmallSpace(sizeof(struct iovec) *
- RX_MAXIOVECS);
- if (!tiov) {
- osi_Panic
- ("afs_MemCacheStoreProc: osi_AllocSmallSpace for iovecs returned NULL\n");
+ code = afs_osi_Write(fP, -1, v->tbuffer, tlen);
+ if (code != tlen) {
+ return EIO;
}
-#ifdef notdef
- /* do this at a higher level now -- it's a parameter */
- /* for now, only do 'continue from close' code if file fits in one
- * chunk. Could clearly do better: if only one modified chunk
- * then can still do this. can do this on *last* modified chunk */
- tlen = avc->f.m.Length - 1; /* byte position of last byte we'll store */
- if (shouldWake) {
- if (AFS_CHUNK(tlen) != 0)
- *shouldWake = 0;
- else
- *shouldWake = 1;
+ *byteswritten = code;
+ return 0;
+}
+
+
+afs_int32
+rxfs_fetchClose(void *r, struct vcache *avc, struct dcache * adc,
+ struct afs_FetchOutput *o)
+{
+ afs_int32 code, code1 = 0;
+ struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
+
+ if (!v->call)
+ return -1;
+
+ RX_AFS_GUNLOCK();
+#ifdef AFS_64BIT_CLIENT
+ if (!v->hasNo64bit)
+ code = EndRXAFS_FetchData64(v->call, &o->OutStatus, &o->CallBack,
+ &o->tsync);
+ else
+#endif
+ code = EndRXAFS_FetchData(v->call, &o->OutStatus, &o->CallBack,
+ &o->tsync);
+ code1 = rx_EndCall(v->call, code);
+ RX_AFS_GLOCK();
+ if (!code && code1)
+ code = code1;
+
+ v->call = NULL;
+
+ return code;
+}
+
+afs_int32
+rxfs_fetchDestroy(void **r, afs_int32 error)
+{
+ afs_int32 code = error;
+ struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)*r;
+
+ *r = NULL;
+ if (v->call) {
+ RX_AFS_GUNLOCK();
+ code = rx_EndCall(v->call, error);
+ RX_AFS_GLOCK();
+ if (error)
+ code = error;
}
-#endif /* notdef */
+ if (v->tbuffer)
+ osi_FreeLargeSpace(v->tbuffer);
+ if (v->iov)
+ osi_FreeSmallSpace(v->iov);
+ osi_FreeSmallSpace(v);
+ return code;
+}
- while (alen > 0) {
- tlen = (alen > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : alen);
+afs_int32
+rxfs_fetchMore(void *r, afs_int32 *length, afs_uint32 *moredata)
+{
+ afs_int32 code;
+ struct rxfs_fetchVariables *v = (struct rxfs_fetchVariables *)r;
+
+ /*
+ * The fetch protocol is extended for the AFS/DFS translator
+ * to allow multiple blocks of data, each with its own length,
+ * to be returned. As long as the top bit is set, there are more
+ * blocks expected.
+ *
+ * We do not do this for AFS file servers because they sometimes
+ * return large negative numbers as the transfer size.
+ */
+ if (*moredata) {
RX_AFS_GUNLOCK();
- code = rx_WritevAlloc(acall, tiov, &tnio, RX_MAXIOVECS, tlen);
+ code = rx_Read(v->call, (void *)length, sizeof(afs_int32));
RX_AFS_GLOCK();
- if (code <= 0) {
- code = rx_Error(acall);
- osi_FreeSmallSpace(tiov);
- return code ? code : -33;
+ *length = ntohl(*length);
+ if (code != sizeof(afs_int32)) {
+ code = rx_Error(v->call);
+ *moredata = 0;
+ return (code ? code : -1); /* try to return code, not -1 */
+ }
+ }
+ *moredata = *length & 0x80000000;
+ *length &= ~0x80000000;
+ return 0;
+}
+
+static
+struct fetchOps rxfs_fetchUfsOps = {
+ rxfs_fetchMore,
+ rxfs_fetchUfsRead,
+ rxfs_fetchUfsWrite,
+ rxfs_fetchClose,
+ rxfs_fetchDestroy
+};
+
+static
+struct fetchOps rxfs_fetchMemOps = {
+ rxfs_fetchMore,
+ rxfs_fetchMemRead,
+ rxfs_fetchMemWrite,
+ rxfs_fetchClose,
+ rxfs_fetchDestroy
+};
+
+afs_int32
+rxfs_fetchInit(struct afs_conn *tc, struct vcache *avc, afs_offs_t base,
+ afs_uint32 size, afs_int32 *alength, struct dcache *adc,
+ struct osi_file *fP, struct fetchOps **ops, void **rock)
+{
+ struct rxfs_fetchVariables *v;
+ int code = 0, code1 = 0;
+#ifdef AFS_64BIT_CLIENT
+ afs_uint32 length_hi = 0;
+#endif
+ afs_uint32 length, bytes;
+
+ v = (struct rxfs_fetchVariables *) osi_AllocSmallSpace(sizeof(struct rxfs_fetchVariables));
+ if (!v)
+ osi_Panic("rxfs_fetchInit: osi_AllocSmallSpace returned NULL\n");
+ memset(v, 0, sizeof(struct rxfs_fetchVariables));
+
+ RX_AFS_GUNLOCK();
+ v->call = rx_NewCall(tc->id);
+ RX_AFS_GLOCK();
+ if (v->call) {
+#ifdef AFS_64BIT_CLIENT
+ afs_size_t length64; /* as returned from server */
+ if (!afs_serverHasNo64Bit(tc)) {
+ afs_uint64 llbytes = size;
+ RX_AFS_GUNLOCK();
+ code = StartRXAFS_FetchData64(v->call, (struct AFSFid *) &avc->f.fid.Fid,
+ base, llbytes);
+ if (code != 0) {
+ RX_AFS_GLOCK();
+ afs_Trace2(afs_iclSetp, CM_TRACE_FETCH64CODE,
+ ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code);
+ } else {
+ bytes = rx_Read(v->call, (char *)&length_hi, sizeof(afs_int32));
+ RX_AFS_GLOCK();
+ if (bytes == sizeof(afs_int32)) {
+ length_hi = ntohl(length_hi);
+ } else {
+ code = rx_Error(v->call);
+ RX_AFS_GUNLOCK();
+ code1 = rx_EndCall(v->call, code);
+ RX_AFS_GLOCK();
+ v->call = NULL;
+ }
+ }
+ }
+ if (code == RXGEN_OPCODE || afs_serverHasNo64Bit(tc)) {
+ if (base > 0x7FFFFFFF) {
+ code = EFBIG;
+ } else {
+ afs_uint32 pos;
+ pos = base;
+ RX_AFS_GUNLOCK();
+ if (!v->call)
+ v->call = rx_NewCall(tc->id);
+ code =
+ StartRXAFS_FetchData(
+ v->call, (struct AFSFid*)&avc->f.fid.Fid,
+ pos, size);
+ RX_AFS_GLOCK();
+ }
+ afs_serverSetNo64Bit(tc);
}
- tlen = code;
- code = afs_MemReadvBlk(mceP, offset, tiov, tnio, tlen);
- if (code != tlen) {
- osi_FreeSmallSpace(tiov);
- return -33;
+ if (!code) {
+ RX_AFS_GUNLOCK();
+ bytes = rx_Read(v->call, (char *)&length, sizeof(afs_int32));
+ RX_AFS_GLOCK();
+ if (bytes == sizeof(afs_int32))
+ length = ntohl(length);
+ else {
+ RX_AFS_GUNLOCK();
+ code = rx_Error(v->call);
+ code1 = rx_EndCall(v->call, code);
+ v->call = NULL;
+ RX_AFS_GLOCK();
+ }
}
+ FillInt64(length64, length_hi, length);
+ afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64LENG,
+ ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
+ ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(length64));
+ *alength = length;
+#else /* AFS_64BIT_CLIENT */
RX_AFS_GUNLOCK();
- code = rx_Writev(acall, tiov, tnio, tlen);
+ code = StartRXAFS_FetchData(v->call, (struct AFSFid *)&avc->f.fid.Fid,
+ base, size);
RX_AFS_GLOCK();
-#ifndef AFS_NOSTATS
- (*abytesXferredP) += code;
-#endif /* AFS_NOSTATS */
- if (code != tlen) {
- code = rx_Error(acall);
- osi_FreeSmallSpace(tiov);
- return code ? code : -33;
- }
- offset += tlen;
- alen -= tlen;
- /* if file has been locked on server, can allow store to continue */
- if (shouldWake && *shouldWake && (rx_GetRemoteStatus(acall) & 1)) {
- *shouldWake = 0; /* only do this once */
- afs_wakeup(avc);
+ if (code == 0) {
+ RX_AFS_GUNLOCK();
+ bytes =
+ rx_Read(v->call, (char *)&length, sizeof(afs_int32));
+ RX_AFS_GLOCK();
+ if (bytes == sizeof(afs_int32)) {
+ *alength = ntohl(length);
+ } else {
+ code = rx_Error(v->call);
+ code1 = rx_EndCall(v->call, code);
+ v->call = NULL;
+ }
}
+#endif /* AFS_64BIT_CLIENT */
+ } else
+ code = -1;
+
+ /* We need to cast here, in order to avoid issues if *alength is
+ * negative. Some, older, fileservers can return a negative length,
+ * which the rest of the code deals correctly with. */
+ if (code == 0 && *alength > (afs_int32) size) {
+ /* The fileserver told us it is going to send more data than we
+ * requested. It shouldn't do that, and accepting that much data
+ * can make us take up more cache space than we're supposed to,
+ * so error. */
+ code = rx_Error(v->call);
+ RX_AFS_GUNLOCK();
+ code1 = rx_EndCall(v->call, code);
+ RX_AFS_GLOCK();
+ v->call = NULL;
+ code = EIO;
+ }
+
+ if (!code && code1)
+ code = code1;
+
+ if (code) {
+ osi_FreeSmallSpace(v);
+ return code;
+ }
+ if (cacheDiskType == AFS_FCACHE_TYPE_UFS) {
+ v->tbuffer = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
+ if (!v->tbuffer)
+ osi_Panic("rxfs_fetchInit: osi_AllocLargeSpace for iovecs returned NULL\n");
+ osi_Assert(WriteLocked(&adc->lock));
+ fP->offset = 0;
+ *ops = (struct fetchOps *) &rxfs_fetchUfsOps;
+ }
+ else {
+ afs_Trace4(afs_iclSetp, CM_TRACE_MEMFETCH, ICL_TYPE_POINTER, avc,
+ ICL_TYPE_POINTER, fP, ICL_TYPE_OFFSET,
+ ICL_HANDLE_OFFSET(base), ICL_TYPE_INT32, length);
+ /*
+ * We need to alloc the iovecs on the heap so that they are "pinned"
+ * rather than declare them on the stack - defect 11272
+ */
+ v->iov = osi_AllocSmallSpace(sizeof(struct iovec) * RX_MAXIOVECS);
+ if (!v->iov)
+ osi_Panic("rxfs_fetchInit: osi_AllocSmallSpace for iovecs returned NULL\n");
+ *ops = (struct fetchOps *) &rxfs_fetchMemOps;
}
- osi_FreeSmallSpace(tiov);
+ *rock = (void *)v;
return 0;
}
+
+/*!
+ * Routine called on fetch; also tells people waiting for data
+ * that more has arrived.
+ *
+ * \param tc Ptr to the Rx connection structure.
+ * \param fP File descriptor for the cache file.
+ * \param base Base offset to fetch.
+ * \param adc Ptr to the dcache entry for the file, write-locked.
+ * \param avc Ptr to the vcache entry for the file.
+ * \param size Amount of data that should be fetched.
+ * \param tsmall Ptr to the afs_FetchOutput structure.
+ *
+ * \note Environment: Nothing interesting.
+ */
int
-afs_MemCacheFetchProc(register struct rx_call *acall,
- register struct osi_file *fP, afs_size_t abase,
- struct dcache *adc, struct vcache *avc,
- afs_size_t * abytesToXferP, afs_size_t * abytesXferredP,
- afs_int32 lengthFound)
+afs_CacheFetchProc(struct afs_conn *tc, struct osi_file *fP, afs_size_t base,
+ struct dcache *adc, struct vcache *avc, afs_int32 size,
+ struct afs_FetchOutput *tsmall)
{
- register struct memCacheEntry *mceP = (struct memCacheEntry *)fP;
- register afs_int32 code;
+ afs_int32 code;
afs_int32 length;
- int moredata = 0;
- struct iovec *tiov; /* no data copying with iovec */
- register int tlen, offset = 0;
- int tnio; /* temp for iovec size */
-
- AFS_STATCNT(afs_MemCacheFetchProc);
- length = lengthFound;
- afs_Trace4(afs_iclSetp, CM_TRACE_MEMFETCH, ICL_TYPE_POINTER, avc,
- ICL_TYPE_POINTER, mceP, ICL_TYPE_OFFSET,
- ICL_HANDLE_OFFSET(abase), ICL_TYPE_INT32, length);
+ afs_uint32 bytesread, byteswritten;
+ struct fetchOps *ops = NULL;
+ void *rock = NULL;
+ afs_uint32 moredata = 0;
+ int offset = 0;
+
+ XSTATS_DECLS;
#ifndef AFS_NOSTATS
- (*abytesToXferP) = 0;
- (*abytesXferredP) = 0;
-#endif /* AFS_NOSTATS */
+ osi_timeval_t xferStartTime; /*FS xfer start time */
+ afs_size_t bytesToXfer = 0, bytesXferred = 0;
+#endif
+
+ AFS_STATCNT(CacheFetchProc);
+
+ XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHDATA);
+
/*
- * We need to alloc the iovecs on the heap so that they are "pinned" rather than
- * declare them on the stack - defect 11272
+ * Locks held:
+ * avc->lock(R) if setLocks && !slowPass
+ * avc->lock(W) if !setLocks || slowPass
+ * adc->lock(W)
*/
- tiov =
- (struct iovec *)osi_AllocSmallSpace(sizeof(struct iovec) *
- RX_MAXIOVECS);
- if (!tiov) {
- osi_Panic
- ("afs_MemCacheFetchProc: osi_AllocSmallSpace for iovecs returned NULL\n");
+ code = rxfs_fetchInit(
+ tc, avc, base, size, &length, adc, fP, &ops, &rock);
+
+#ifndef AFS_NOSTATS
+ osi_GetuTime(&xferStartTime);
+#endif /* AFS_NOSTATS */
+
+ if (adc) {
+ adc->validPos = base;
}
- adc->validPos = abase;
- do {
- if (moredata) {
- RX_AFS_GUNLOCK();
- code = rx_Read(acall, (char *)&length, sizeof(afs_int32));
- length = ntohl(length);
- RX_AFS_GLOCK();
- if (code != sizeof(afs_int32)) {
- code = rx_Error(acall);
- osi_FreeSmallSpace(tiov);
- return (code ? code : -1); /* try to return code, not -1 */
- }
- }
- /*
- * The fetch protocol is extended for the AFS/DFS translator
- * to allow multiple blocks of data, each with its own length,
- * to be returned. As long as the top bit is set, there are more
- * blocks expected.
- *
- * We do not do this for AFS file servers because they sometimes
- * return large negative numbers as the transfer size.
- */
+
+ if ( !code ) do {
if (avc->f.states & CForeign) {
- moredata = length & 0x80000000;
- length &= ~0x80000000;
- } else {
- moredata = 0;
+ code = (*ops->more)(rock, &length, &moredata);
+ if ( code )
+ break;
}
#ifndef AFS_NOSTATS
- (*abytesToXferP) += length;
+ bytesToXfer += length;
#endif /* AFS_NOSTATS */
while (length > 0) {
- tlen = (length > AFS_LRALLOCSIZ ? AFS_LRALLOCSIZ : length);
- RX_AFS_GUNLOCK();
- code = rx_Readv(acall, tiov, &tnio, RX_MAXIOVECS, tlen);
- RX_AFS_GLOCK();
+#ifdef RX_KERNEL_TRACE
+ afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
+ "before rx_Read");
+#endif
+ code = (*ops->read)(rock, length, &bytesread);
+#ifdef RX_KERNEL_TRACE
+ afs_Trace1(afs_iclSetp, CM_TRACE_TIMESTAMP, ICL_TYPE_STRING,
+ "after rx_Read");
+#endif
#ifndef AFS_NOSTATS
- (*abytesXferredP) += code;
+ bytesXferred += bytesread;
#endif /* AFS_NOSTATS */
- if (code <= 0) {
+ if ( code ) {
afs_Trace3(afs_iclSetp, CM_TRACE_FETCH64READ,
ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, code,
ICL_TYPE_INT32, length);
- osi_FreeSmallSpace(tiov);
- return -34;
+ code = -34;
+ break;
}
- tlen = code;
- afs_MemWritevBlk(mceP, offset, tiov, tnio, tlen);
- offset += tlen;
- abase += tlen;
- length -= tlen;
- adc->validPos = abase;
+ code = (*ops->write)(rock, fP, offset, bytesread, &byteswritten);
+ if ( code )
+ break;
+ offset += bytesread;
+ base += bytesread;
+ length -= bytesread;
+ adc->validPos = base;
if (afs_osi_Wakeup(&adc->validPos) == 0)
afs_Trace4(afs_iclSetp, CM_TRACE_DCACHEWAKE, ICL_TYPE_STRING,
__FILE__, ICL_TYPE_INT32, __LINE__,
ICL_TYPE_POINTER, adc, ICL_TYPE_INT32,
adc->dflags);
}
+ code = 0;
} while (moredata);
- /* max of two sizes */
- osi_FreeSmallSpace(tiov);
- return 0;
-}
+ if (!code)
+ code = (*ops->close)(rock, avc, adc, tsmall);
+ if (ops)
+ (*ops->destroy)(&rock, code);
+#ifndef AFS_NOSTATS
+ FillStoreStats(code, AFS_STATS_FS_XFERIDX_FETCHDATA, &xferStartTime,
+ bytesToXfer, bytesXferred);
+#endif
+ XSTATS_END_TIME;
+ return code;
+}
git://git.openafs.org / openafs.git / blobdiff