#include <osi.h>
#include "afsd.h"
+#include "cm_btree.h"
/*extern void afsi_log(char *pattern, ...);*/
/* Dummy scache entry for use with pioctl fids */
cm_scache_t cm_fakeSCache;
+osi_queue_t * cm_allFreeWaiters; /* protected by cm_scacheLock */
+
#ifdef AFS_FREELANCE_CLIENT
extern osi_mutex_t cm_Freelance_Lock;
#endif
/* must be called with cm_scacheLock write-locked! */
-void cm_AdjustLRU(cm_scache_t *scp)
+void cm_AdjustScacheLRU(cm_scache_t *scp)
{
- if (scp == cm_data.scacheLRULastp)
- cm_data.scacheLRULastp = (cm_scache_t *) osi_QPrev(&scp->q);
+ lock_AssertWrite(&cm_scacheLock);
osi_QRemoveHT((osi_queue_t **) &cm_data.scacheLRUFirstp, (osi_queue_t **) &cm_data.scacheLRULastp, &scp->q);
- osi_QAdd((osi_queue_t **) &cm_data.scacheLRUFirstp, &scp->q);
- if (!cm_data.scacheLRULastp)
- cm_data.scacheLRULastp = scp;
+ osi_QAddH((osi_queue_t **) &cm_data.scacheLRUFirstp, (osi_queue_t **) &cm_data.scacheLRULastp, &scp->q);
}
-/* call with scache write-locked and mutex held */
+/* call with cm_scacheLock write-locked and scp rw held */
void cm_RemoveSCacheFromHashTable(cm_scache_t *scp)
{
cm_scache_t **lscpp;
cm_scache_t *tscp;
int i;
+ lock_AssertWrite(&cm_scacheLock);
+ lock_AssertWrite(&scp->rw);
if (scp->flags & CM_SCACHEFLAG_INHASH) {
/* hash it out first */
i = CM_SCACHE_HASH(&scp->fid);
- for (lscpp = &cm_data.hashTablep[i], tscp = cm_data.hashTablep[i];
+ for (lscpp = &cm_data.scacheHashTablep[i], tscp = cm_data.scacheHashTablep[i];
tscp;
lscpp = &tscp->nextp, tscp = tscp->nextp) {
if (tscp == scp) {
*lscpp = scp->nextp;
+ scp->nextp = NULL;
scp->flags &= ~CM_SCACHEFLAG_INHASH;
break;
}
}
}
-/* called with cm_scacheLock write-locked; recycles an existing scp.
- *
- * this function ignores all of the locking hierarchy.
- */
+/* called with cm_scacheLock and scp write-locked */
+void cm_ResetSCacheDirectory(cm_scache_t *scp, afs_int32 dirlock)
+{
+#ifdef USE_BPLUS
+ /* destroy directory Bplus Tree */
+ if (scp->dirBplus) {
+ LARGE_INTEGER start, end;
+
+ if (!dirlock && !lock_TryWrite(&scp->dirlock)) {
+ /*
+ * We are not holding the dirlock and obtaining it
+ * requires that we drop the scp->rw. As a result
+ * we will leave the dirBplus tree intact but
+ * invalidate the version number so that whatever
+ * operation is currently active can safely complete
+ * but the contents will be ignored on the next
+ * directory operation.
+ */
+ scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
+ return;
+ }
+
+ QueryPerformanceCounter(&start);
+ bplus_free_tree++;
+ freeBtree(scp->dirBplus);
+ scp->dirBplus = NULL;
+ scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
+ QueryPerformanceCounter(&end);
+
+ if (!dirlock)
+ lock_ReleaseWrite(&scp->dirlock);
+
+ bplus_free_time += (end.QuadPart - start.QuadPart);
+ }
+#endif
+}
+
+/* called with cm_scacheLock and scp write-locked; recycles an existing scp. */
long cm_RecycleSCache(cm_scache_t *scp, afs_int32 flags)
{
if (scp->refCount != 0) {
lock_ObtainMutex(&bufp->mx);
bufp->cmFlags &= ~CM_BUF_CMSTORING;
bufp->flags &= ~CM_BUF_DIRTY;
+ bufp->dirty_offset = 0;
+ bufp->dirty_length = 0;
bufp->flags |= CM_BUF_ERROR;
bufp->error = VNOVNODE;
- bufp->dataVersion = -1; /* bad */
+ bufp->dataVersion = CM_BUF_VERSION_BAD; /* bad */
bufp->dirtyCounter++;
if (bufp->flags & CM_BUF_WAITING) {
osi_Log2(afsd_logp, "CM RecycleSCache Waking [scp 0x%x] bufp 0x%x", scp, bufp);
lock_ObtainMutex(&bufp->mx);
bufp->cmFlags &= ~CM_BUF_CMFETCHING;
bufp->flags &= ~CM_BUF_DIRTY;
+ bufp->dirty_offset = 0;
+ bufp->dirty_length = 0;
bufp->flags |= CM_BUF_ERROR;
bufp->error = VNOVNODE;
- bufp->dataVersion = -1; /* bad */
+ bufp->dataVersion = CM_BUF_VERSION_BAD; /* bad */
bufp->dirtyCounter++;
if (bufp->flags & CM_BUF_WAITING) {
osi_Log2(afsd_logp, "CM RecycleSCache Waking [scp 0x%x] bufp 0x%x", scp, bufp);
buf_CleanDirtyBuffers(scp);
} else {
/* look for things that shouldn't still be set */
- osi_assert(scp->bufWritesp == NULL);
- osi_assert(scp->bufReadsp == NULL);
+ osi_assertx(scp->bufWritesp == NULL, "non-null cm_scache_t bufWritesp");
+ osi_assertx(scp->bufReadsp == NULL, "non-null cm_scache_t bufReadsp");
}
#endif
/* invalidate so next merge works fine;
* also initialize some flags */
+ scp->fileType = 0;
scp->flags &= ~(CM_SCACHEFLAG_STATD
| CM_SCACHEFLAG_DELETED
| CM_SCACHEFLAG_RO
| CM_SCACHEFLAG_OUTOFSPACE
| CM_SCACHEFLAG_EACCESS);
scp->serverModTime = 0;
- scp->dataVersion = 0;
+ scp->dataVersion = CM_SCACHE_VERSION_BAD;
+ scp->bufDataVersionLow = CM_SCACHE_VERSION_BAD;
scp->bulkStatProgress = hzero;
scp->waitCount = 0;
+ scp->waitQueueT = NULL;
+
+ if (scp->cbServerp) {
+ cm_PutServer(scp->cbServerp);
+ scp->cbServerp = NULL;
+ }
+ scp->cbExpires = 0;
+ scp->volumeCreationDate = 0;
scp->fid.vnode = 0;
scp->fid.volume = 0;
scp->fid.unique = 0;
scp->fid.cell = 0;
-
- /* discard callback */
- if (scp->cbServerp) {
- cm_PutServer(scp->cbServerp);
- scp->cbServerp = NULL;
- }
- scp->cbExpires = 0;
+ scp->fid.hash = 0;
/* remove from dnlc */
cm_dnlcPurgedp(scp);
* tried to store this to server but failed */
scp->mask = 0;
- /* drop held volume ref */
- if (scp->volp) {
- cm_PutVolume(scp->volp);
- scp->volp = NULL;
- }
-
/* discard symlink info */
- scp->mountPointStringp[0] = 0;
+ scp->mountPointStringp[0] = '\0';
memset(&scp->mountRootFid, 0, sizeof(cm_fid_t));
memset(&scp->dotdotFid, 0, sizeof(cm_fid_t));
scp->serverLock = (-1);
scp->exclusiveLocks = 0;
scp->sharedLocks = 0;
+ scp->lockDataVersion = CM_SCACHE_VERSION_BAD;
+ scp->fsLockCount = 0;
/* not locked, but there can be no references to this guy
* while we hold the global refcount lock.
*/
cm_FreeAllACLEnts(scp);
+
+ cm_ResetSCacheDirectory(scp, 0);
return 0;
}
-/* called with cm_scacheLock write-locked; find a vnode to recycle.
+/*
+ * called with cm_scacheLock write-locked; find a vnode to recycle.
* Can allocate a new one if desperate, or if below quota (cm_data.maxSCaches).
+ * returns scp->mx held.
*/
cm_scache_t *cm_GetNewSCache(void)
{
cm_scache_t *scp;
int retry = 0;
+ lock_AssertWrite(&cm_scacheLock);
#if 0
/* first pass - look for deleted objects */
for ( scp = cm_data.scacheLRULastp;
scp;
scp = (cm_scache_t *) osi_QPrev(&scp->q))
{
- osi_assert(scp >= cm_data.scacheBaseAddress && scp < (cm_scache_t *)cm_data.hashTablep);
+ osi_assertx(scp >= cm_data.scacheBaseAddress && scp < (cm_scache_t *)cm_data.scacheHashTablep,
+ "invalid cm_scache_t address");
if (scp->refCount == 0) {
if (scp->flags & CM_SCACHEFLAG_DELETED) {
+ if (!lock_TryWrite(&scp->rw))
+ continue;
+
osi_Log1(afsd_logp, "GetNewSCache attempting to recycle deleted scp 0x%x", scp);
if (!cm_RecycleSCache(scp, CM_SCACHE_RECYCLEFLAG_DESTROY_BUFFERS)) {
/* now remove from the LRU queue and put it back at the
* head of the LRU queue.
*/
- cm_AdjustLRU(scp);
+ cm_AdjustScacheLRU(scp);
/* and we're done */
return scp;
}
+ lock_ReleaseWrite(&scp->rw);
osi_Log1(afsd_logp, "GetNewSCache recycled failed scp 0x%x", scp);
} else if (!(scp->flags & CM_SCACHEFLAG_INHASH)) {
+ if (!lock_TryWrite(&scp->rw))
+ continue;
+
/* we found an entry, so return it */
/* now remove from the LRU queue and put it back at the
* head of the LRU queue.
*/
- cm_AdjustLRU(scp);
+ cm_AdjustScacheLRU(scp);
/* and we're done */
return scp;
/* There were no deleted scache objects that we could use. Try to find
* one that simply hasn't been used in a while.
*/
- for ( scp = cm_data.scacheLRULastp;
- scp;
- scp = (cm_scache_t *) osi_QPrev(&scp->q))
- {
- /* It is possible for the refCount to be zero and for there still
- * to be outstanding dirty buffers. If there are dirty buffers,
- * we must not recycle the scp. */
- if (scp->refCount == 0 && scp->bufReadsp == NULL && scp->bufWritesp == NULL) {
- if (!buf_DirtyBuffersExist(&scp->fid)) {
- if (!cm_RecycleSCache(scp, 0)) {
- /* we found an entry, so return it */
- /* now remove from the LRU queue and put it back at the
- * head of the LRU queue.
- */
- cm_AdjustLRU(scp);
-
- /* and we're done */
- return scp;
- }
- } else {
- osi_Log1(afsd_logp,"GetNewSCache dirty buffers exist scp 0x%x", scp);
- }
- }
- }
- osi_Log1(afsd_logp, "GetNewSCache all scache entries in use (retry = %d)", retry);
-
- return NULL;
+ for ( scp = cm_data.scacheLRULastp;
+ scp;
+ scp = (cm_scache_t *) osi_QPrev(&scp->q))
+ {
+ /* It is possible for the refCount to be zero and for there still
+ * to be outstanding dirty buffers. If there are dirty buffers,
+ * we must not recycle the scp. */
+ if (scp->refCount == 0 && scp->bufReadsp == NULL && scp->bufWritesp == NULL) {
+ if (!buf_DirtyBuffersExist(&scp->fid)) {
+ if (!lock_TryWrite(&scp->rw))
+ continue;
+
+ if (!cm_RecycleSCache(scp, 0)) {
+ /* we found an entry, so return it */
+ /* now remove from the LRU queue and put it back at the
+ * head of the LRU queue.
+ */
+ cm_AdjustScacheLRU(scp);
+
+ /* and we're done */
+ return scp;
+ }
+ lock_ReleaseWrite(&scp->rw);
+ } else {
+ osi_Log1(afsd_logp,"GetNewSCache dirty buffers exist scp 0x%x", scp);
+ }
+ }
+ }
+ osi_Log1(afsd_logp, "GetNewSCache all scache entries in use (retry = %d)", retry);
+
+ return NULL;
}
/* if we get here, we should allocate a new scache entry. We either are below
* quota or we have a leak and need to allocate a new one to avoid panicing.
*/
scp = cm_data.scacheBaseAddress + cm_data.currentSCaches;
- osi_assert(scp >= cm_data.scacheBaseAddress && scp < (cm_scache_t *)cm_data.hashTablep);
+ osi_assertx(scp >= cm_data.scacheBaseAddress && scp < (cm_scache_t *)cm_data.scacheHashTablep,
+ "invalid cm_scache_t address");
memset(scp, 0, sizeof(cm_scache_t));
scp->magic = CM_SCACHE_MAGIC;
- lock_InitializeMutex(&scp->mx, "cm_scache_t mutex");
- lock_InitializeRWLock(&scp->bufCreateLock, "cm_scache_t bufCreateLock");
+ lock_InitializeRWLock(&scp->rw, "cm_scache_t rw", LOCK_HIERARCHY_SCACHE);
+ osi_assertx(lock_TryWrite(&scp->rw), "cm_scache_t rw held after allocation");
+ lock_InitializeRWLock(&scp->bufCreateLock, "cm_scache_t bufCreateLock", LOCK_HIERARCHY_SCACHE_BUFCREATE);
+#ifdef USE_BPLUS
+ lock_InitializeRWLock(&scp->dirlock, "cm_scache_t dirlock", LOCK_HIERARCHY_SCACHE_DIRLOCK);
+#endif
scp->serverLock = -1;
/* and put it in the LRU queue */
cm_data.currentSCaches++;
cm_dnlcPurgedp(scp); /* make doubly sure that this is not in dnlc */
cm_dnlcPurgevp(scp);
+ scp->allNextp = cm_data.allSCachesp;
+ cm_data.allSCachesp = scp;
return scp;
}
+void cm_SetFid(cm_fid_t *fidp, afs_uint32 cell, afs_uint32 volume, afs_uint32 vnode, afs_uint32 unique)
+{
+ fidp->cell = cell;
+ fidp->volume = volume;
+ fidp->vnode = vnode;
+ fidp->unique = unique;
+ fidp->hash = ((cell & 0xF) << 28) | ((volume & 0x3F) << 22) | ((vnode & 0x7FF) << 11) | (unique & 0x7FF);
+}
+
/* like strcmp, only for fids */
-int cm_FidCmp(cm_fid_t *ap, cm_fid_t *bp)
+__inline int cm_FidCmp(cm_fid_t *ap, cm_fid_t *bp)
{
- if (ap->vnode != bp->vnode)
+ if (ap->hash != bp->hash)
+ return 1;
+ if (ap->vnode != bp->vnode)
return 1;
if (ap->volume != bp->volume)
return 1;
{
if ( newFile ) {
memset(&cm_data.fakeSCache, 0, sizeof(cm_scache_t));
+ cm_data.fakeSCache.magic = CM_SCACHE_MAGIC;
cm_data.fakeSCache.cbServerp = (struct cm_server *)(-1);
+ cm_data.fakeSCache.cbExpires = (time_t)-1;
/* can leave clientModTime at 0 */
cm_data.fakeSCache.fileType = CM_SCACHETYPE_FILE;
cm_data.fakeSCache.unixModeBits = 0777;
cm_data.fakeSCache.length.LowPart = 1000;
cm_data.fakeSCache.linkCount = 1;
cm_data.fakeSCache.refCount = 1;
+ cm_data.fakeSCache.serverLock = -1;
+ cm_data.fakeSCache.dataVersion = CM_SCACHE_VERSION_BAD;
}
- lock_InitializeMutex(&cm_data.fakeSCache.mx, "cm_scache_t mutex");
+ lock_InitializeRWLock(&cm_data.fakeSCache.rw, "cm_scache_t rw", LOCK_HIERARCHY_SCACHE);
+ lock_InitializeRWLock(&cm_data.fakeSCache.bufCreateLock, "cm_scache_t bufCreateLock", LOCK_HIERARCHY_SCACHE_BUFCREATE);
+ lock_InitializeRWLock(&cm_data.fakeSCache.dirlock, "cm_scache_t dirlock", LOCK_HIERARCHY_SCACHE_DIRLOCK);
}
long
fprintf(stderr, "cm_ValidateSCache failure: scp->randomACLp->magic != CM_ACLENT_MAGIC\n");
return -3;
}
- if (scp->volp && scp->volp->magic != CM_VOLUME_MAGIC) {
- afsi_log("cm_ValidateSCache failure: scp->volp->magic != CM_VOLUME_MAGIC");
- fprintf(stderr, "cm_ValidateSCache failure: scp->volp->magic != CM_VOLUME_MAGIC\n");
- return -4;
- }
if (i > cm_data.currentSCaches ) {
afsi_log("cm_ValidateSCache failure: LRU First queue loops");
fprintf(stderr, "cm_ValidateSCache failure: LUR First queue loops\n");
fprintf(stderr, "cm_ValidateSCache failure: scp->randomACLp->magic != CM_ACLENT_MAGIC\n");
return -7;
}
- if (scp->volp && scp->volp->magic != CM_VOLUME_MAGIC) {
- afsi_log("cm_ValidateSCache failure: scp->volp->magic != CM_VOLUME_MAGIC");
- fprintf(stderr, "cm_ValidateSCache failure: scp->volp->magic != CM_VOLUME_MAGIC\n");
- return -8;
- }
if (i > cm_data.currentSCaches ) {
afsi_log("cm_ValidateSCache failure: LRU Last queue loops");
fprintf(stderr, "cm_ValidateSCache failure: LUR Last queue loops\n");
}
}
- for ( i=0; i < cm_data.hashTableSize; i++ ) {
- for ( scp = cm_data.hashTablep[i]; scp; scp = scp->nextp ) {
+ for ( i=0; i < cm_data.scacheHashTableSize; i++ ) {
+ for ( scp = cm_data.scacheHashTablep[i]; scp; scp = scp->nextp ) {
+ afs_uint32 hash;
+ hash = CM_SCACHE_HASH(&scp->fid);
if (scp->magic != CM_SCACHE_MAGIC) {
afsi_log("cm_ValidateSCache failure: scp->magic != CM_SCACHE_MAGIC");
fprintf(stderr, "cm_ValidateSCache failure: scp->magic != CM_SCACHE_MAGIC\n");
fprintf(stderr, "cm_ValidateSCache failure: scp->randomACLp->magic != CM_ACLENT_MAGIC\n");
return -11;
}
- if (scp->volp && scp->volp->magic != CM_VOLUME_MAGIC) {
- afsi_log("cm_ValidateSCache failure: scp->volp->magic != CM_VOLUME_MAGIC");
- fprintf(stderr, "cm_ValidateSCache failure: scp->volp->magic != CM_VOLUME_MAGIC\n");
- return -12;
+ if (hash != i) {
+ afsi_log("cm_ValidateSCache failure: scp hash != hash index");
+ fprintf(stderr, "cm_ValidateSCache failure: scp hash != hash index\n");
+ return -13;
}
}
}
return cm_dnlcValidate();
}
+void
+cm_SuspendSCache(void)
+{
+ cm_scache_t * scp;
+ time_t now;
+
+ cm_GiveUpAllCallbacksAllServers(TRUE);
+
+ /*
+ * After this call all servers are marked down.
+ * Do not clear the callbacks, instead change the
+ * expiration time so that the callbacks will be expired
+ * when the servers are marked back up. However, we
+ * want the callbacks to be preserved as long as the
+ * servers are down. That way if the machine resumes
+ * without network, the stat cache item will still be
+ * considered valid.
+ */
+ now = time(NULL);
+
+ lock_ObtainWrite(&cm_scacheLock);
+ for ( scp = cm_data.allSCachesp; scp; scp = scp->allNextp ) {
+ if (scp->cbServerp) {
+ if (scp->flags & CM_SCACHEFLAG_PURERO) {
+ cm_volume_t *volp = cm_GetVolumeByFID(&scp->fid);
+ if (volp) {
+ if (volp->cbExpiresRO == scp->cbExpires)
+ volp->cbExpiresRO = now+1;
+ cm_PutVolume(volp);
+ }
+ }
+ scp->cbExpires = now+1;
+ }
+ }
+ lock_ReleaseWrite(&cm_scacheLock);
+}
+
long
cm_ShutdownSCache(void)
{
cm_scache_t * scp;
- for ( scp = cm_data.scacheLRULastp; scp;
- scp = (cm_scache_t *) osi_QPrev(&scp->q) ) {
+ lock_ObtainWrite(&cm_scacheLock);
+
+ for ( scp = cm_data.allSCachesp; scp;
+ scp = scp->allNextp ) {
if (scp->randomACLp) {
- lock_ObtainMutex(&scp->mx);
+ lock_ReleaseWrite(&cm_scacheLock);
+ lock_ObtainWrite(&scp->rw);
+ lock_ObtainWrite(&cm_scacheLock);
cm_FreeAllACLEnts(scp);
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseWrite(&scp->rw);
+ }
+
+ if (scp->cbServerp) {
+ cm_PutServer(scp->cbServerp);
+ scp->cbServerp = NULL;
}
- lock_FinalizeMutex(&scp->mx);
+ scp->cbExpires = 0;
+ scp->flags &= ~CM_SCACHEFLAG_CALLBACK;
+
+#ifdef USE_BPLUS
+ if (scp->dirBplus)
+ freeBtree(scp->dirBplus);
+ scp->dirBplus = NULL;
+ scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
+ lock_FinalizeRWLock(&scp->dirlock);
+#endif
+ lock_FinalizeRWLock(&scp->rw);
lock_FinalizeRWLock(&scp->bufCreateLock);
}
+ lock_ReleaseWrite(&cm_scacheLock);
+
+ cm_GiveUpAllCallbacksAllServers(FALSE);
return cm_dnlcShutdown();
}
static osi_once_t once;
if (osi_Once(&once)) {
- lock_InitializeRWLock(&cm_scacheLock, "cm_scacheLock");
+ lock_InitializeRWLock(&cm_scacheLock, "cm_scacheLock", LOCK_HIERARCHY_SCACHE_GLOBAL);
if ( newFile ) {
- memset(cm_data.hashTablep, 0, sizeof(cm_scache_t *) * cm_data.hashTableSize);
+ memset(cm_data.scacheHashTablep, 0, sizeof(cm_scache_t *) * cm_data.scacheHashTableSize);
+ cm_data.allSCachesp = NULL;
cm_data.currentSCaches = 0;
cm_data.maxSCaches = maxSCaches;
cm_data.scacheLRUFirstp = cm_data.scacheLRULastp = NULL;
} else {
cm_scache_t * scp;
- for ( scp = cm_data.scacheLRULastp; scp;
- scp = (cm_scache_t *) osi_QPrev(&scp->q) ) {
- lock_InitializeMutex(&scp->mx, "cm_scache_t mutex");
- lock_InitializeRWLock(&scp->bufCreateLock, "cm_scache_t bufCreateLock");
-
+ for ( scp = cm_data.allSCachesp; scp;
+ scp = scp->allNextp ) {
+ lock_InitializeRWLock(&scp->rw, "cm_scache_t rw", LOCK_HIERARCHY_SCACHE);
+ lock_InitializeRWLock(&scp->bufCreateLock, "cm_scache_t bufCreateLock", LOCK_HIERARCHY_SCACHE_BUFCREATE);
+#ifdef USE_BPLUS
+ lock_InitializeRWLock(&scp->dirlock, "cm_scache_t dirlock", LOCK_HIERARCHY_SCACHE_DIRLOCK);
+#endif
scp->cbServerp = NULL;
scp->cbExpires = 0;
+ scp->volumeCreationDate = 0;
scp->fileLocksH = NULL;
scp->fileLocksT = NULL;
scp->serverLock = (-1);
scp->openShares = 0;
scp->openExcls = 0;
scp->waitCount = 0;
+#ifdef USE_BPLUS
+ scp->dirBplus = NULL;
+ scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
+#endif
+ scp->waitQueueT = NULL;
scp->flags &= ~CM_SCACHEFLAG_WAITING;
}
}
cm_freeFileLocks = NULL;
cm_lockRefreshCycle = 0;
cm_fakeSCacheInit(newFile);
+ cm_allFreeWaiters = NULL;
cm_dnlcInit(newFile);
osi_EndOnce(&once);
}
return NULL;
}
- lock_ObtainWrite(&cm_scacheLock);
- for (scp=cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
+ lock_ObtainRead(&cm_scacheLock);
+ for (scp=cm_data.scacheHashTablep[hash]; scp; scp=scp->nextp) {
if (cm_FidCmp(fidp, &scp->fid) == 0) {
cm_HoldSCacheNoLock(scp);
- cm_AdjustLRU(scp);
+ lock_ConvertRToW(&cm_scacheLock);
+ cm_AdjustScacheLRU(scp);
lock_ReleaseWrite(&cm_scacheLock);
return scp;
}
}
- lock_ReleaseWrite(&cm_scacheLock);
+ lock_ReleaseRead(&cm_scacheLock);
return NULL;
}
#endif
{
long hash;
- cm_scache_t *scp;
+ cm_scache_t *scp = NULL;
long code;
cm_volume_t *volp = NULL;
cm_cell_t *cellp;
- char* mp = NULL;
- int special; // yj: boolean variable to test if file is on root.afs
- int isRoot;
+ int special = 0; // yj: boolean variable to test if file is on root.afs
+ int isRoot = 0;
extern cm_fid_t cm_rootFid;
hash = CM_SCACHE_HASH(fidp);
- osi_assert(fidp->cell != 0);
+ if (fidp->cell == 0)
+ return CM_ERROR_INVAL;
- if (fidp->cell== cm_data.rootFid.cell &&
- fidp->volume==cm_data.rootFid.volume &&
- fidp->vnode==0x0 && fidp->unique==0x0)
- {
- osi_Log0(afsd_logp,"cm_GetSCache called with root cell/volume and vnode=0 and unique=0");
- }
+#ifdef AFS_FREELANCE_CLIENT
+ special = (fidp->cell==AFS_FAKE_ROOT_CELL_ID &&
+ fidp->volume==AFS_FAKE_ROOT_VOL_ID &&
+ !(fidp->vnode==0x1 && fidp->unique==0x1));
+ isRoot = (fidp->cell==AFS_FAKE_ROOT_CELL_ID &&
+ fidp->volume==AFS_FAKE_ROOT_VOL_ID &&
+ fidp->vnode==0x1 && fidp->unique==0x1);
+#endif
// yj: check if we have the scp, if so, we don't need
// to do anything else
lock_ObtainWrite(&cm_scacheLock);
- for (scp=cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
+ for (scp=cm_data.scacheHashTablep[hash]; scp; scp=scp->nextp) {
if (cm_FidCmp(fidp, &scp->fid) == 0) {
#ifdef DEBUG_REFCOUNT
- afsi_log("%s:%d cm_GetSCache (1) outScpp 0x%p ref %d", file, line, scp, scp->refCount);
- osi_Log1(afsd_logp,"cm_GetSCache (1) outScpp 0x%p", scp);
+ afsi_log("%s:%d cm_GetSCache (1) scp 0x%p ref %d", file, line, scp, scp->refCount);
+ osi_Log1(afsd_logp,"cm_GetSCache (1) scp 0x%p", scp);
+#endif
+#ifdef AFS_FREELANCE_CLIENT
+ if (cm_freelanceEnabled && special &&
+ cm_data.fakeDirVersion != scp->dataVersion)
+ break;
#endif
cm_HoldSCacheNoLock(scp);
*outScpp = scp;
- cm_AdjustLRU(scp);
+ cm_AdjustScacheLRU(scp);
lock_ReleaseWrite(&cm_scacheLock);
return 0;
}
}
-
+
// yj: when we get here, it means we don't have an scp
// so we need to either load it or fake it, depending
// on whether the file is "special", see below.
// because we have to fill in the status stuff 'coz we
// don't want trybulkstat to fill it in for us
#ifdef AFS_FREELANCE_CLIENT
- special = (fidp->cell==AFS_FAKE_ROOT_CELL_ID &&
- fidp->volume==AFS_FAKE_ROOT_VOL_ID &&
- !(fidp->vnode==0x1 && fidp->unique==0x1));
- isRoot = (fidp->cell==AFS_FAKE_ROOT_CELL_ID &&
- fidp->volume==AFS_FAKE_ROOT_VOL_ID &&
- fidp->vnode==0x1 && fidp->unique==0x1);
if (cm_freelanceEnabled && isRoot) {
osi_Log0(afsd_logp,"cm_GetSCache Freelance and isRoot");
/* freelance: if we are trying to get the root scp for the first
}
if (cm_freelanceEnabled && special) {
+ lock_ReleaseWrite(&cm_scacheLock);
osi_Log0(afsd_logp,"cm_GetSCache Freelance and special");
- if (fidp->vnode > 1 && fidp->vnode <= cm_noLocalMountPoints + 2) {
- lock_ObtainMutex(&cm_Freelance_Lock);
- mp =(cm_localMountPoints+fidp->vnode-2)->mountPointStringp;
- lock_ReleaseMutex(&cm_Freelance_Lock);
- } else {
- mp = "";
+
+ if (cm_getLocalMountPointChange()) { // check for changes
+ cm_clearLocalMountPointChange(); // clear the changefile
+ cm_reInitLocalMountPoints(); // start reinit
}
- scp = cm_GetNewSCache();
- if (scp == NULL) {
- osi_Log0(afsd_logp,"cm_GetSCache unable to obtain *new* scache entry");
- lock_ReleaseWrite(&cm_scacheLock);
- return CM_ERROR_WOULDBLOCK;
- }
-#if not_too_dangerous
- /* dropping the cm_scacheLock allows more than one thread
- * to obtain the same cm_scache_t from the LRU list. Since
- * the refCount is known to be zero at this point we have to
- * assume that no one else is using the one this is returned.
- */
- lock_ReleaseWrite(&cm_scacheLock);
- lock_ObtainMutex(&scp->mx);
- lock_ObtainWrite(&cm_scacheLock);
-#endif
+ lock_ObtainWrite(&cm_scacheLock);
+ if (scp == NULL) {
+ scp = cm_GetNewSCache(); /* returns scp->rw held */
+ if (scp == NULL) {
+ osi_Log0(afsd_logp,"cm_GetSCache unable to obtain *new* scache entry");
+ lock_ReleaseWrite(&cm_scacheLock);
+ return CM_ERROR_WOULDBLOCK;
+ }
+ } else {
+ lock_ReleaseWrite(&cm_scacheLock);
+ lock_ObtainWrite(&scp->rw);
+ lock_ObtainWrite(&cm_scacheLock);
+ }
scp->fid = *fidp;
- scp->volp = cm_data.rootSCachep->volp;
- cm_GetVolume(scp->volp); /* grab an additional reference */
scp->dotdotFid.cell=AFS_FAKE_ROOT_CELL_ID;
scp->dotdotFid.volume=AFS_FAKE_ROOT_VOL_ID;
scp->dotdotFid.unique=1;
scp->dotdotFid.vnode=1;
scp->flags |= (CM_SCACHEFLAG_PURERO | CM_SCACHEFLAG_RO);
- scp->nextp=cm_data.hashTablep[hash];
- cm_data.hashTablep[hash]=scp;
- scp->flags |= CM_SCACHEFLAG_INHASH;
+ if (!(scp->flags & CM_SCACHEFLAG_INHASH)) {
+ scp->nextp = cm_data.scacheHashTablep[hash];
+ cm_data.scacheHashTablep[hash] = scp;
+ scp->flags |= CM_SCACHEFLAG_INHASH;
+ }
scp->refCount = 1;
osi_Log1(afsd_logp,"cm_GetSCache (freelance) sets refCount to 1 scp 0x%x", scp);
- if (fidp->vnode > 1 && fidp->vnode <= cm_noLocalMountPoints + 2)
- scp->fileType = (cm_localMountPoints+fidp->vnode-2)->fileType;
- else
- scp->fileType = CM_SCACHETYPE_INVALID;
- lock_ObtainMutex(&cm_Freelance_Lock);
- scp->length.LowPart = (DWORD)strlen(mp)+4;
+ /* must be called after the scp->fid is set */
+ cm_FreelanceFetchMountPointString(scp);
+ cm_FreelanceFetchFileType(scp);
+
+ scp->length.LowPart = (DWORD)strlen(scp->mountPointStringp)+4;
scp->length.HighPart = 0;
- strncpy(scp->mountPointStringp,mp,MOUNTPOINTLEN);
- scp->mountPointStringp[MOUNTPOINTLEN-1] = '\0';
- lock_ReleaseMutex(&cm_Freelance_Lock);
-
scp->owner=0x0;
scp->unixModeBits=0777;
scp->clientModTime=FakeFreelanceModTime;
scp->parentVnode=0x1;
scp->group=0;
scp->dataVersion=cm_data.fakeDirVersion;
- scp->lockDataVersion=-1; /* no lock yet */
-#if not_too_dangerous
- lock_ReleaseMutex(&scp->mx);
-#endif
- *outScpp = scp;
+ scp->bufDataVersionLow=cm_data.fakeDirVersion;
+ scp->lockDataVersion=CM_SCACHE_VERSION_BAD; /* no lock yet */
+ scp->fsLockCount=0;
+ lock_ReleaseWrite(&scp->rw);
lock_ReleaseWrite(&cm_scacheLock);
+ *outScpp = scp;
#ifdef DEBUG_REFCOUNT
- afsi_log("%s:%d cm_GetSCache (2) outScpp 0x%p ref %d", file, line, scp, scp->refCount);
- osi_Log1(afsd_logp,"cm_GetSCache (2) outScpp 0x%p", scp);
+ afsi_log("%s:%d cm_GetSCache (2) scp 0x%p ref %d", file, line, scp, scp->refCount);
+ osi_Log1(afsd_logp,"cm_GetSCache (2) scp 0x%p", scp);
#endif
return 0;
}
/* otherwise, we need to find the volume */
if (!cm_freelanceEnabled || !isRoot) {
lock_ReleaseWrite(&cm_scacheLock); /* for perf. reasons */
- cellp = cm_FindCellByID(fidp->cell);
+ cellp = cm_FindCellByID(fidp->cell, 0);
if (!cellp)
return CM_ERROR_NOSUCHCELL;
- code = cm_GetVolumeByID(cellp, fidp->volume, userp, reqp, &volp);
+ code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp, CM_GETVOL_FLAG_CREATE, &volp);
if (code)
return code;
lock_ObtainWrite(&cm_scacheLock);
/* otherwise, we have the volume, now reverify that the scp doesn't
* exist, and proceed.
*/
- for (scp=cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
+ for (scp=cm_data.scacheHashTablep[hash]; scp; scp=scp->nextp) {
if (cm_FidCmp(fidp, &scp->fid) == 0) {
#ifdef DEBUG_REFCOUNT
- afsi_log("%s:%d cm_GetSCache (3) outScpp 0x%p ref %d", file, line, scp, scp->refCount);
- osi_Log1(afsd_logp,"cm_GetSCache (3) outScpp 0x%p", scp);
+ afsi_log("%s:%d cm_GetSCache (3) scp 0x%p ref %d", file, line, scp, scp->refCount);
+ osi_Log1(afsd_logp,"cm_GetSCache (3) scp 0x%p", scp);
#endif
cm_HoldSCacheNoLock(scp);
- osi_assert(scp->volp == volp);
- cm_AdjustLRU(scp);
+ cm_AdjustScacheLRU(scp);
lock_ReleaseWrite(&cm_scacheLock);
if (volp)
cm_PutVolume(volp);
}
/* now, if we don't have the fid, recycle something */
- scp = cm_GetNewSCache();
+ scp = cm_GetNewSCache(); /* returns scp->rw held */
if (scp == NULL) {
osi_Log0(afsd_logp,"cm_GetNewSCache unable to obtain *new* scache entry");
lock_ReleaseWrite(&cm_scacheLock);
cm_PutVolume(volp);
return CM_ERROR_WOULDBLOCK;
}
- osi_Log2(afsd_logp,"cm_GetNewSCache returns scp 0x%x flags 0x%x", scp, scp->flags);
+#ifdef DEBUG_REFCOUNT
+ afsi_log("%s:%d cm_GetNewSCache returns scp 0x%p flags 0x%x", file, line, scp, scp->flags);
+#endif
+ osi_Log2(afsd_logp,"cm_GetNewSCache returns scp 0x%p flags 0x%x", scp, scp->flags);
- osi_assert(!(scp->flags & CM_SCACHEFLAG_INHASH));
+ osi_assertx(!(scp->flags & CM_SCACHEFLAG_INHASH), "CM_SCACHEFLAG_INHASH set");
-#if not_too_dangerous
- /* dropping the cm_scacheLock allows more than one thread
- * to obtain the same cm_scache_t from the LRU list. Since
- * the refCount is known to be zero at this point we have to
- * assume that no one else is using the one this is returned.
- */
- lock_ReleaseWrite(&cm_scacheLock);
- lock_ObtainMutex(&scp->mx);
- lock_ObtainWrite(&cm_scacheLock);
-#endif
scp->fid = *fidp;
- scp->volp = volp; /* a held reference */
-
if (!cm_freelanceEnabled || !isRoot) {
/* if this scache entry represents a volume root then we need
* to copy the dotdotFipd from the volume structure where the
* "master" copy is stored (defect 11489)
*/
- if (scp->fid.vnode == 1 && scp->fid.unique == 1) {
- scp->dotdotFid = volp->dotdotFid;
- }
-
- if (volp->roID == fidp->volume)
+ if (volp->vol[ROVOL].ID == fidp->volume) {
scp->flags |= (CM_SCACHEFLAG_PURERO | CM_SCACHEFLAG_RO);
- else if (volp->bkID == fidp->volume)
+ if (scp->fid.vnode == 1 && scp->fid.unique == 1)
+ scp->dotdotFid = cm_VolumeStateByType(volp, ROVOL)->dotdotFid;
+ } else if (volp->vol[BACKVOL].ID == fidp->volume) {
scp->flags |= CM_SCACHEFLAG_RO;
+ if (scp->fid.vnode == 1 && scp->fid.unique == 1)
+ scp->dotdotFid = cm_VolumeStateByType(volp, BACKVOL)->dotdotFid;
+ } else {
+ if (scp->fid.vnode == 1 && scp->fid.unique == 1)
+ scp->dotdotFid = cm_VolumeStateByType(volp, RWVOL)->dotdotFid;
+ }
}
- scp->nextp = cm_data.hashTablep[hash];
- cm_data.hashTablep[hash] = scp;
+ if (volp)
+ cm_PutVolume(volp);
+ scp->nextp = cm_data.scacheHashTablep[hash];
+ cm_data.scacheHashTablep[hash] = scp;
scp->flags |= CM_SCACHEFLAG_INHASH;
+ lock_ReleaseWrite(&scp->rw);
scp->refCount = 1;
- osi_Log1(afsd_logp,"cm_GetSCache sets refCount to 1 scp 0x%x", scp);
-#if not_too_dangerous
- lock_ReleaseMutex(&scp->mx);
+#ifdef DEBUG_REFCOUNT
+ afsi_log("%s:%d cm_GetSCache sets refCount to 1 scp 0x%x", file, line, scp);
#endif
+ osi_Log1(afsd_logp,"cm_GetSCache sets refCount to 1 scp 0x%x", scp);
/* XXX - The following fields in the cm_scache are
* uninitialized:
* parentVnode
* parentUnique
*/
- lock_ReleaseWrite(&cm_scacheLock);
/* now we have a held scache entry; just return it */
*outScpp = scp;
#ifdef DEBUG_REFCOUNT
- afsi_log("%s:%d cm_GetSCache (4) outScpp 0x%p ref %d", file, line, scp, scp->refCount);
- osi_Log1(afsd_logp,"cm_GetSCache (4) outScpp 0x%p", scp);
+ afsi_log("%s:%d cm_GetSCache (4) scp 0x%p ref %d", file, line, scp, scp->refCount);
+ osi_Log1(afsd_logp,"cm_GetSCache (4) scp 0x%p", scp);
#endif
+ lock_ReleaseWrite(&cm_scacheLock);
return 0;
}
cm_fid_t parent_fid;
cm_scache_t * pscp = NULL;
- lock_ObtainRead(&cm_scacheLock);
- parent_fid = scp->fid;
- parent_fid.vnode = scp->parentVnode;
- parent_fid.unique = scp->parentUnique;
+ lock_ObtainWrite(&cm_scacheLock);
+ cm_SetFid(&parent_fid, scp->fid.cell, scp->fid.volume, scp->parentVnode, scp->parentUnique);
if (cm_FidCmp(&scp->fid, &parent_fid)) {
i = CM_SCACHE_HASH(&parent_fid);
- for (pscp = cm_data.hashTablep[i]; pscp; pscp = pscp->nextp) {
+ for (pscp = cm_data.scacheHashTablep[i]; pscp; pscp = pscp->nextp) {
if (!cm_FidCmp(&pscp->fid, &parent_fid)) {
cm_HoldSCacheNoLock(pscp);
break;
}
}
- lock_ReleaseRead(&cm_scacheLock);
+ lock_ReleaseWrite(&cm_scacheLock);
return pscp;
}
+void cm_SyncOpAddToWaitQueue(cm_scache_t * scp, afs_int32 flags, cm_buf_t * bufp)
+{
+ cm_scache_waiter_t * w;
+
+ lock_ObtainWrite(&cm_scacheLock);
+ if (cm_allFreeWaiters == NULL) {
+ w = malloc(sizeof(*w));
+ memset(w, 0, sizeof(*w));
+ } else {
+ w = (cm_scache_waiter_t *) cm_allFreeWaiters;
+ osi_QRemove(&cm_allFreeWaiters, (osi_queue_t *) w);
+ }
+
+ w->threadId = thrd_Current();
+ w->scp = scp;
+ cm_HoldSCacheNoLock(scp);
+ w->flags = flags;
+ w->bufp = bufp;
+
+ osi_QAddT(&scp->waitQueueH, &scp->waitQueueT, (osi_queue_t *) w);
+ lock_ReleaseWrite(&cm_scacheLock);
+
+ osi_Log2(afsd_logp, "cm_SyncOpAddToWaitQueue : Adding thread to wait queue scp 0x%p w 0x%p", scp, w);
+}
+
+int cm_SyncOpCheckContinue(cm_scache_t * scp, afs_int32 flags, cm_buf_t * bufp)
+{
+ cm_scache_waiter_t * w;
+ int this_is_me;
+
+ osi_Log0(afsd_logp, "cm_SyncOpCheckContinue checking for continuation");
+
+ lock_ObtainRead(&cm_scacheLock);
+ for (w = (cm_scache_waiter_t *)scp->waitQueueH;
+ w;
+ w = (cm_scache_waiter_t *)osi_QNext((osi_queue_t *) w)) {
+ if (w->flags == flags && w->bufp == bufp) {
+ break;
+ }
+ }
+
+ osi_assertx(w != NULL, "null cm_scache_waiter_t");
+ this_is_me = (w->threadId == thrd_Current());
+ lock_ReleaseRead(&cm_scacheLock);
+
+ if (!this_is_me) {
+ osi_Log1(afsd_logp, "cm_SyncOpCheckContinue MISS: Waiter 0x%p", w);
+ return 0;
+ }
+
+ osi_Log1(afsd_logp, "cm_SyncOpCheckContinue HIT: Waiter 0x%p", w);
+
+ lock_ObtainWrite(&cm_scacheLock);
+ osi_QRemoveHT(&scp->waitQueueH, &scp->waitQueueT, (osi_queue_t *) w);
+ cm_ReleaseSCacheNoLock(scp);
+ memset(w, 0, sizeof(*w));
+ osi_QAdd(&cm_allFreeWaiters, (osi_queue_t *) w);
+ lock_ReleaseWrite(&cm_scacheLock);
+
+ return 1;
+}
+
+
/* synchronize a fetch, store, read, write, fetch status or store status.
* Called with scache mutex held, and returns with it held, but temporarily
* drops it during the fetch.
afs_uint32 sleep_scp_flags = 0;
afs_uint32 sleep_buf_cmflags = 0;
afs_uint32 sleep_scp_bufs = 0;
+ int wakeupCycle;
+
+ lock_AssertWrite(&scp->rw);
/* lookup this first */
bufLocked = flags & CM_SCACHESYNC_BUFLOCKED;
- if (bufp)
- osi_assert(bufp->refCount > 0);
+ if (bufp)
+ osi_assertx(bufp->refCount > 0, "cm_buf_t refCount 0");
/* Do the access check. Now we don't really do the access check
osi_Log1(afsd_logp, "CM SyncOp scp 0x%p is FETCHING|STORING|SIZESTORING|GETCALLBACK want FETCHDATA", scp);
goto sleep;
}
- if (bufp && (bufp->cmFlags & (CM_BUF_CMFETCHING | CM_BUF_CMSTORING))) {
- osi_Log2(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is BUF_CMFETCHING|BUF_CMSTORING want FETCHDATA", scp, bufp);
+ if (bufp && (bufp->cmFlags & (CM_BUF_CMFETCHING | CM_BUF_CMSTORING | CM_BUF_CMWRITING))) {
+ osi_Log2(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is BUF_CMFETCHING|BUF_CMSTORING|BUF_CMWRITING want FETCHDATA", scp, bufp);
goto sleep;
}
}
osi_Log1(afsd_logp, "CM SyncOp scp 0x%p is FETCHING|STORING|SIZESTORING|GETCALLBACK want STOREDATA", scp);
goto sleep;
}
- if (bufp && (bufp->cmFlags & (CM_BUF_CMFETCHING | CM_BUF_CMSTORING))) {
- osi_Log2(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is BUF_CMFETCHING|BUF_CMSTORING want STOREDATA", scp, bufp);
+ if (bufp && (bufp->cmFlags & (CM_BUF_CMFETCHING | CM_BUF_CMSTORING | CM_BUF_CMWRITING))) {
+ osi_Log2(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is BUF_CMFETCHING|BUF_CMSTORING|BUF_CMWRITING want STOREDATA", scp, bufp);
goto sleep;
}
}
osi_Log2(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is BUF_CMFETCHING want READ", scp, bufp);
goto sleep;
}
+ if (bufp && (bufp->cmFlags & CM_BUF_CMWRITING)) {
+ osi_Log2(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is BUF_CMWRITING want READ", scp, bufp);
+ goto sleep;
+ }
}
if (flags & CM_SCACHESYNC_WRITE) {
/* don't write unless the status is stable and the chunk
osi_Log1(afsd_logp, "CM SyncOp scp 0x%p is FETCHING|STORING|SIZESTORING want WRITE", scp);
goto sleep;
}
- if (bufp && (bufp->cmFlags & (CM_BUF_CMFETCHING | CM_BUF_CMSTORING))) {
- osi_Log2(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is BUF_CMFETCHING|BUF_CMSTORING want WRITE", scp, bufp);
+ if (bufp && (bufp->cmFlags & (CM_BUF_CMFETCHING |
+ CM_BUF_CMSTORING |
+ CM_BUF_CMWRITING))) {
+ osi_Log3(afsd_logp, "CM SyncOp scp 0x%p bufp 0x%p is %s want WRITE",
+ scp, bufp,
+ ((bufp->cmFlags & CM_BUF_CMFETCHING) ? "CM_BUF_CMFETCHING":
+ ((bufp->cmFlags & CM_BUF_CMSTORING) ? "CM_BUF_CMSTORING" :
+ ((bufp->cmFlags & CM_BUF_CMWRITING) ? "CM_BUF_CMWRITING" :
+ "UNKNOWN!!!"))));
goto sleep;
}
}
lock_ReleaseMutex(&bufp->mx);
code = cm_GetCallback(scp, userp, reqp, (flags & CM_SCACHESYNC_FORCECB)?1:0);
if (bufLocked) {
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseWrite(&scp->rw);
lock_ObtainMutex(&bufp->mx);
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainWrite(&scp->rw);
}
if (code)
return code;
if (rights) {
/* can't check access rights without a callback */
- osi_assert(flags & CM_SCACHESYNC_NEEDCALLBACK);
+ osi_assertx(flags & CM_SCACHESYNC_NEEDCALLBACK, "!CM_SCACHESYNC_NEEDCALLBACK");
- if ((rights & PRSFS_WRITE) && (scp->flags & CM_SCACHEFLAG_RO))
+ if ((rights & (PRSFS_WRITE|PRSFS_DELETE)) && (scp->flags & CM_SCACHEFLAG_RO))
return CM_ERROR_READONLY;
if (cm_HaveAccessRights(scp, userp, rights, &outRights)) {
if (bufLocked) lock_ReleaseMutex(&bufp->mx);
code = cm_GetAccessRights(scp, userp, reqp);
if (bufLocked) {
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseWrite(&scp->rw);
lock_ObtainMutex(&bufp->mx);
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainWrite(&scp->rw);
}
if (code)
return code;
if (flags & CM_SCACHESYNC_NOWAIT)
return CM_ERROR_WOULDBLOCK;
+ /* These are used for minidump debugging */
sleep_scp_flags = scp->flags; /* so we know why we slept */
sleep_buf_cmflags = bufp ? bufp->cmFlags : 0;
sleep_scp_bufs = (scp->bufReadsp ? 1 : 0) | (scp->bufWritesp ? 2 : 0);
scp->flags |= CM_SCACHEFLAG_WAITING;
scp->waitCount = scp->waitRequests = 1;
}
- if (bufLocked)
- lock_ReleaseMutex(&bufp->mx);
- osi_SleepM((LONG_PTR) &scp->flags, &scp->mx);
- smb_UpdateServerPriority();
+ cm_SyncOpAddToWaitQueue(scp, flags, bufp);
+ wakeupCycle = 0;
+ do {
+ if (bufLocked)
+ lock_ReleaseMutex(&bufp->mx);
+ osi_SleepW((LONG_PTR) &scp->flags, &scp->rw);
+ if (bufLocked)
+ lock_ObtainMutex(&bufp->mx);
+ lock_ObtainWrite(&scp->rw);
+ } while (!cm_SyncOpCheckContinue(scp, flags, bufp));
+
+ cm_UpdateServerPriority();
- if (bufLocked)
- lock_ObtainMutex(&bufp->mx);
- lock_ObtainMutex(&scp->mx);
scp->waitCount--;
osi_Log3(afsd_logp, "CM SyncOp woke! scp 0x%p; still waiting %d threads of %d requests",
scp, scp->waitCount, scp->waitRequests);
if (bufp) {
for(qdp = scp->bufReadsp; qdp; qdp = (osi_queueData_t *) osi_QNext(&qdp->q)) {
tbufp = osi_GetQData(qdp);
- osi_assert(tbufp != bufp);
+ osi_assertx(tbufp != bufp, "unexpected cm_buf_t value");
}
}
if (bufp) {
for(qdp = scp->bufWritesp; qdp; qdp = (osi_queueData_t *) osi_QNext(&qdp->q)) {
tbufp = osi_GetQData(qdp);
- osi_assert(tbufp != bufp);
+ osi_assertx(tbufp != bufp, "unexpected cm_buf_t value");
}
}
osi_QAdd((osi_queue_t **) &scp->bufWritesp, &qdp->q);
}
+ if (flags & CM_SCACHESYNC_WRITE) {
+ /* mark the buffer as being written to. */
+ if (bufp) {
+ bufp->cmFlags |= CM_BUF_CMWRITING;
+ }
+ }
+
return 0;
}
osi_queueData_t *qdp;
cm_buf_t *tbufp;
- lock_AssertMutex(&scp->mx);
+ lock_AssertWrite(&scp->rw);
/* now, update the recorded state for RPC-type calls */
if (flags & CM_SCACHESYNC_FETCHSTATUS)
}
}
+ if (flags & CM_SCACHESYNC_WRITE) {
+ if (bufp) {
+ osi_assertx(bufp->cmFlags & CM_BUF_CMWRITING, "!CM_BUF_CMWRITING");
+
+ bufp->cmFlags &= ~CM_BUF_CMWRITING;
+ }
+ }
+
/* and wakeup anyone who is waiting */
if (scp->flags & CM_SCACHEFLAG_WAITING) {
osi_Log1(afsd_logp, "CM SyncOpDone Waking scp 0x%p", scp);
* handled after the callback breaking is done, but only one of whose calls
* started before that, can cause old info to be merged from the first call.
*/
-void cm_MergeStatus(cm_scache_t *scp, AFSFetchStatus *statusp, AFSVolSync *volp,
- cm_user_t *userp, afs_uint32 flags)
+void cm_MergeStatus(cm_scache_t *dscp,
+ cm_scache_t *scp, AFSFetchStatus *statusp,
+ AFSVolSync *volsyncp,
+ cm_user_t *userp, cm_req_t *reqp, afs_uint32 flags)
{
+ afs_uint64 dataVersion;
+ struct cm_volume *volp = NULL;
+ struct cm_cell *cellp = NULL;
+
// yj: i want to create some fake status for the /afs directory and the
// entries under that directory
#ifdef AFS_FREELANCE_CLIENT
- if (cm_freelanceEnabled && scp == cm_data.rootSCachep) {
- osi_Log0(afsd_logp,"cm_MergeStatus Freelance cm_data.rootSCachep");
+ if (cm_freelanceEnabled && scp->fid.cell==AFS_FAKE_ROOT_CELL_ID &&
+ scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {
+ if (scp == cm_data.rootSCachep) {
+ osi_Log0(afsd_logp,"cm_MergeStatus Freelance cm_data.rootSCachep");
+ statusp->FileType = CM_SCACHETYPE_DIRECTORY;
+ statusp->Length = cm_fakeDirSize;
+ statusp->Length_hi = 0;
+ } else {
+ statusp->FileType = scp->fileType;
+ statusp->Length = scp->length.LowPart;
+ statusp->Length_hi = scp->length.HighPart;
+ }
statusp->InterfaceVersion = 0x1;
- statusp->FileType = CM_SCACHETYPE_DIRECTORY;
statusp->LinkCount = scp->linkCount;
- statusp->Length = cm_fakeDirSize;
- statusp->Length_hi = 0;
- statusp->DataVersion = cm_data.fakeDirVersion;
+ statusp->DataVersion = (afs_uint32)(cm_data.fakeDirVersion & 0xFFFFFFFF);
statusp->Author = 0x1;
statusp->Owner = 0x0;
statusp->CallerAccess = 0x9;
statusp->ServerModTime = FakeFreelanceModTime;
statusp->Group = 0;
statusp->SyncCounter = 0;
- statusp->dataVersionHigh = 0;
- statusp->errorCode = 0;
+ statusp->dataVersionHigh = (afs_uint32)(cm_data.fakeDirVersion >> 32);
+ statusp->lockCount = 0;
+ statusp->errorCode = 0;
}
#endif /* AFS_FREELANCE_CLIENT */
if (statusp->errorCode != 0) {
scp->flags |= CM_SCACHEFLAG_EACCESS;
osi_Log2(afsd_logp, "Merge, Failure scp %x code 0x%x", scp, statusp->errorCode);
+
+ scp->fileType = 0; /* unknown */
+
+ scp->serverModTime = 0;
+ scp->clientModTime = 0;
+ scp->length.LowPart = 0;
+ scp->length.HighPart = 0;
+ scp->serverLength.LowPart = 0;
+ scp->serverLength.HighPart = 0;
+ scp->linkCount = 0;
+ scp->owner = 0;
+ scp->group = 0;
+ scp->unixModeBits = 0;
+ scp->anyAccess = 0;
+ scp->dataVersion = CM_SCACHE_VERSION_BAD;
+ scp->bufDataVersionLow = CM_SCACHE_VERSION_BAD;
+ scp->fsLockCount = 0;
+
+ if (dscp) {
+ scp->parentVnode = dscp->fid.vnode;
+ scp->parentUnique = dscp->fid.unique;
+ } else {
+ scp->parentVnode = 0;
+ scp->parentUnique = 0;
+ }
+ goto done;
} else {
scp->flags &= ~CM_SCACHEFLAG_EACCESS;
}
- if (!(flags & CM_MERGEFLAG_FORCE)
- && statusp->DataVersion < (unsigned long) scp->dataVersion) {
- struct cm_cell *cellp;
+ dataVersion = statusp->dataVersionHigh;
+ dataVersion <<= 32;
+ dataVersion |= statusp->DataVersion;
- cellp = cm_FindCellByID(scp->fid.cell);
- if (scp->cbServerp) {
- struct cm_volume *volp = NULL;
+ if (!(flags & CM_MERGEFLAG_FORCE) &&
+ dataVersion < scp->dataVersion &&
+ scp->dataVersion != CM_SCACHE_VERSION_BAD) {
- cm_GetVolumeByID(cellp, scp->fid.volume, userp,
- (cm_req_t *) NULL, &volp);
+ cellp = cm_FindCellByID(scp->fid.cell, 0);
+ if (scp->cbServerp) {
+ cm_FindVolumeByID(cellp, scp->fid.volume, userp,
+ reqp, CM_GETVOL_FLAG_CREATE, &volp);
osi_Log2(afsd_logp, "old data from server %x volume %s",
scp->cbServerp->addr.sin_addr.s_addr,
volp ? volp->namep : "(unknown)");
- if (volp)
- cm_PutVolume(volp);
}
osi_Log3(afsd_logp, "Bad merge, scp %x, scp dv %d, RPC dv %d",
- scp, scp->dataVersion, statusp->DataVersion);
+ scp, scp->dataVersion, dataVersion);
/* we have a number of data fetch/store operations running
* concurrently, and we can tell which one executed last at the
* server by its mtime.
* infinite loop. So we just grin and bear it.
*/
if (!(scp->flags & CM_SCACHEFLAG_RO))
- return;
+ goto done;
}
+ scp->volumeCreationDate = volsyncp->spare1; /* volume creation date */
+
scp->serverModTime = statusp->ServerModTime;
if (!(scp->mask & CM_SCACHEMASK_CLIENTMODTIME)) {
/* and other stuff */
scp->parentVnode = statusp->ParentVnode;
scp->parentUnique = statusp->ParentUnique;
-
+ scp->fsLockCount = statusp->lockCount;
+
/* and merge in the private acl cache info, if this is more than the public
* info; merge in the public stuff in any case.
*/
cm_AddACLCache(scp, userp, statusp->CallerAccess);
}
- if ((flags & CM_MERGEFLAG_STOREDATA) &&
- statusp->DataVersion - scp->dataVersion == 1) {
- cm_buf_t *bp;
-
- for (bp = cm_data.buf_fileHashTablepp[BUF_FILEHASH(&scp->fid)]; bp; bp=bp->fileHashp)
+ if (scp->dataVersion != 0 &&
+ (!(flags & (CM_MERGEFLAG_DIROP|CM_MERGEFLAG_STOREDATA)) && dataVersion != scp->dataVersion ||
+ (flags & (CM_MERGEFLAG_DIROP|CM_MERGEFLAG_STOREDATA)) && dataVersion - scp->dataVersion > 1)) {
+ /*
+ * We now know that all of the data buffers that we have associated
+ * with this scp are invalid. Subsequent operations will go faster
+ * if the buffers are removed from the hash tables.
+ *
+ * We do not remove directory buffers if the dataVersion delta is 1 because
+ * those version numbers will be updated as part of the directory operation.
+ *
+ * We do not remove storedata buffers because they will still be valid.
+ */
+ int i, j;
+ cm_buf_t **lbpp;
+ cm_buf_t *tbp;
+ cm_buf_t *bp, *prevBp, *nextBp;
+
+ lock_ObtainWrite(&buf_globalLock);
+ i = BUF_FILEHASH(&scp->fid);
+ for (bp = cm_data.buf_fileHashTablepp[i]; bp; bp=nextBp)
{
- if (cm_FidCmp(&scp->fid, &bp->fid) == 0 &&
- bp->dataVersion == scp->dataVersion)
- bp->dataVersion = statusp->DataVersion;
+ nextBp = bp->fileHashp;
+ /*
+ * if the buffer belongs to this stat cache entry
+ * and the buffer mutex can be obtained, check the
+ * reference count and if it is zero, remove the buffer
+ * from the hash tables. If there are references,
+ * the buffer might be updated to the current version
+ * so leave it in place.
+ */
+ if (cm_FidCmp(&scp->fid, &bp->fid) == 0 &&
+ lock_TryMutex(&bp->mx)) {
+ if (bp->refCount == 0 &&
+ !(bp->flags & CM_BUF_READING | CM_BUF_WRITING | CM_BUF_DIRTY)) {
+ prevBp = bp->fileHashBackp;
+ bp->fileHashBackp = bp->fileHashp = NULL;
+ if (prevBp)
+ prevBp->fileHashp = nextBp;
+ else
+ cm_data.buf_fileHashTablepp[i] = nextBp;
+ if (nextBp)
+ nextBp->fileHashBackp = prevBp;
+
+ j = BUF_HASH(&bp->fid, &bp->offset);
+ lbpp = &(cm_data.buf_scacheHashTablepp[j]);
+ for(tbp = *lbpp; tbp; lbpp = &tbp->hashp, tbp = *lbpp) {
+ if (tbp == bp)
+ break;
+ }
+
+ *lbpp = bp->hashp; /* hash out */
+ bp->hashp = NULL;
+
+ bp->flags &= ~CM_BUF_INHASH;
+ }
+ lock_ReleaseMutex(&bp->mx);
+ }
}
+ lock_ReleaseWrite(&buf_globalLock);
+ }
+
+ /* We maintain a range of buffer dataVersion values which are considered
+ * valid. This avoids the need to update the dataVersion on each buffer
+ * object during an uncontested storeData operation. As a result this
+ * merge status no longer has performance characteristics derived from
+ * the size of the file.
+ */
+ if (((flags & CM_MERGEFLAG_STOREDATA) && dataVersion - scp->dataVersion > 1) ||
+ (!(flags & CM_MERGEFLAG_STOREDATA) && scp->dataVersion != dataVersion) ||
+ scp->bufDataVersionLow == 0)
+ scp->bufDataVersionLow = dataVersion;
+
+ scp->dataVersion = dataVersion;
+
+ /*
+ * If someone is waiting for status information, we can wake them up
+ * now even though the entity that issued the FetchStatus may not
+ * have completed yet.
+ */
+ cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_FETCHSTATUS);
+ /*
+ * We just successfully merged status on the stat cache object.
+ * This means that the associated volume must be online.
+ */
+ if (!volp) {
+ if (!cellp)
+ cellp = cm_FindCellByID(scp->fid.cell, 0);
+ cm_FindVolumeByID(cellp, scp->fid.volume, userp, reqp, 0, &volp);
+ }
+ if (volp) {
+ cm_vol_state_t *statep = cm_VolumeStateByID(volp, scp->fid.volume);
+ if (statep->state != vl_online) {
+ lock_ObtainWrite(&volp->rw);
+ cm_VolumeStatusNotification(volp, statep->ID, statep->state, vl_online);
+ statep->state = vl_online;
+ lock_ReleaseWrite(&volp->rw);
+ }
}
- scp->dataVersion = statusp->DataVersion;
+ done:
+ if (volp)
+ cm_PutVolume(volp);
+
}
/* note that our stat cache info is incorrect, so force us eventually
*/
void cm_DiscardSCache(cm_scache_t *scp)
{
- lock_AssertMutex(&scp->mx);
+ lock_AssertWrite(&scp->rw);
if (scp->cbServerp) {
cm_PutServer(scp->cbServerp);
scp->cbServerp = NULL;
}
scp->cbExpires = 0;
- scp->flags &= ~CM_SCACHEFLAG_CALLBACK;
+ scp->flags &= ~(CM_SCACHEFLAG_CALLBACK | CM_SCACHEFLAG_LOCAL);
cm_dnlcPurgedp(scp);
cm_dnlcPurgevp(scp);
cm_FreeAllACLEnts(scp);
+ if (scp->fileType == CM_SCACHETYPE_DFSLINK)
+ cm_VolStatus_Invalidate_DFS_Mapping(scp);
+
/* Force mount points and symlinks to be re-evaluated */
scp->mountPointStringp[0] = '\0';
}
#else
void cm_HoldSCacheNoLock(cm_scache_t *scp)
#endif
-{
- osi_assert(scp != 0);
- scp->refCount++;
+{
+ afs_int32 refCount;
+
+ osi_assertx(scp != NULL, "null cm_scache_t");
+ lock_AssertAny(&cm_scacheLock);
+ refCount = InterlockedIncrement(&scp->refCount);
#ifdef DEBUG_REFCOUNT
- osi_Log2(afsd_logp,"cm_HoldSCacheNoLock scp 0x%p ref %d",scp, scp->refCount);
- afsi_log("%s:%d cm_HoldSCacheNoLock scp 0x%p, ref %d", file, line, scp, scp->refCount);
+ osi_Log2(afsd_logp,"cm_HoldSCacheNoLock scp 0x%p ref %d",scp, refCount);
+ afsi_log("%s:%d cm_HoldSCacheNoLock scp 0x%p, ref %d", file, line, scp, refCount);
#endif
}
void cm_HoldSCache(cm_scache_t *scp)
#endif
{
- osi_assert(scp != 0);
- lock_ObtainWrite(&cm_scacheLock);
- scp->refCount++;
+ afs_int32 refCount;
+
+ osi_assertx(scp != NULL, "null cm_scache_t");
+ lock_ObtainRead(&cm_scacheLock);
+ refCount = InterlockedIncrement(&scp->refCount);
#ifdef DEBUG_REFCOUNT
- osi_Log2(afsd_logp,"cm_HoldSCache scp 0x%p ref %d",scp, scp->refCount);
- afsi_log("%s:%d cm_HoldSCache scp 0x%p ref %d", file, line, scp, scp->refCount);
+ osi_Log2(afsd_logp,"cm_HoldSCache scp 0x%p ref %d",scp, refCount);
+ afsi_log("%s:%d cm_HoldSCache scp 0x%p ref %d", file, line, scp, refCount);
#endif
- lock_ReleaseWrite(&cm_scacheLock);
+ lock_ReleaseRead(&cm_scacheLock);
}
#ifdef DEBUG_REFCOUNT
void cm_ReleaseSCacheNoLock(cm_scache_t *scp)
#endif
{
- osi_assert(scp != NULL);
- if (scp->refCount == 0)
+ afs_int32 refCount;
+
+ osi_assertx(scp != NULL, "null cm_scache_t");
+ lock_AssertAny(&cm_scacheLock);
+
+ refCount = InterlockedDecrement(&scp->refCount);
+#ifdef DEBUG_REFCOUNT
+ if (refCount < 0)
osi_Log1(afsd_logp,"cm_ReleaseSCacheNoLock about to panic scp 0x%x",scp);
- osi_assert(scp->refCount-- >= 0);
+#endif
+ osi_assertx(refCount >= 0, "cm_scache_t refCount 0");
#ifdef DEBUG_REFCOUNT
- osi_Log2(afsd_logp,"cm_ReleaseSCacheNoLock scp 0x%p ref %d",scp,scp->refCount);
- afsi_log("%s:%d cm_ReleaseSCacheNoLock scp 0x%p ref %d", file, line, scp, scp->refCount);
+ osi_Log2(afsd_logp,"cm_ReleaseSCacheNoLock scp 0x%p ref %d",scp, refCount);
+ afsi_log("%s:%d cm_ReleaseSCacheNoLock scp 0x%p ref %d", file, line, scp, refCount);
#endif
+
+ if (refCount == 0 && (scp->flags & CM_SCACHEFLAG_DELETED)) {
+ int deleted = 0;
+ long lockstate;
+
+ lockstate = lock_GetRWLockState(&cm_scacheLock);
+ if (lockstate != OSI_RWLOCK_WRITEHELD)
+ lock_ReleaseRead(&cm_scacheLock);
+ else
+ lock_ReleaseWrite(&cm_scacheLock);
+
+ lock_ObtainWrite(&scp->rw);
+ if (scp->flags & CM_SCACHEFLAG_DELETED)
+ deleted = 1;
+
+ if (refCount == 0 && deleted) {
+ lock_ObtainWrite(&cm_scacheLock);
+ cm_RecycleSCache(scp, 0);
+ if (lockstate != OSI_RWLOCK_WRITEHELD)
+ lock_ConvertWToR(&cm_scacheLock);
+ } else {
+ if (lockstate != OSI_RWLOCK_WRITEHELD)
+ lock_ObtainRead(&cm_scacheLock);
+ else
+ lock_ObtainWrite(&cm_scacheLock);
+ }
+ lock_ReleaseWrite(&scp->rw);
+ }
}
#ifdef DEBUG_REFCOUNT
#else
void cm_ReleaseSCache(cm_scache_t *scp)
#endif
-{
- osi_assert(scp != NULL);
- lock_ObtainWrite(&cm_scacheLock);
- if (scp->refCount == 0)
+{
+ afs_int32 refCount;
+
+ osi_assertx(scp != NULL, "null cm_scache_t");
+ lock_ObtainRead(&cm_scacheLock);
+ refCount = InterlockedDecrement(&scp->refCount);
+#ifdef DEBUG_REFCOUNT
+ if (refCount < 0)
osi_Log1(afsd_logp,"cm_ReleaseSCache about to panic scp 0x%x",scp);
- osi_assert(scp->refCount != 0);
- scp->refCount--;
+#endif
+ osi_assertx(refCount >= 0, "cm_scache_t refCount 0");
#ifdef DEBUG_REFCOUNT
- osi_Log2(afsd_logp,"cm_ReleaseSCache scp 0x%p ref %d",scp,scp->refCount);
- afsi_log("%s:%d cm_ReleaseSCache scp 0x%p ref %d", file, line, scp, scp->refCount);
+ osi_Log2(afsd_logp,"cm_ReleaseSCache scp 0x%p ref %d",scp, refCount);
+ afsi_log("%s:%d cm_ReleaseSCache scp 0x%p ref %d", file, line, scp, refCount);
#endif
- lock_ReleaseWrite(&cm_scacheLock);
+ lock_ReleaseRead(&cm_scacheLock);
+
+ if (scp->flags & CM_SCACHEFLAG_DELETED) {
+ int deleted = 0;
+ lock_ObtainWrite(&scp->rw);
+ if (scp->flags & CM_SCACHEFLAG_DELETED)
+ deleted = 1;
+ if (deleted) {
+ lock_ObtainWrite(&cm_scacheLock);
+ cm_RecycleSCache(scp, 0);
+ lock_ReleaseWrite(&cm_scacheLock);
+ }
+ lock_ReleaseWrite(&scp->rw);
+ }
}
/* just look for the scp entry to get filetype */
hash = CM_SCACHE_HASH(fidp);
- osi_assert(fidp->cell != 0);
+ osi_assertx(fidp->cell != 0, "unassigned cell value");
lock_ObtainWrite(&cm_scacheLock);
- for (scp=cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
+ for (scp=cm_data.scacheHashTablep[hash]; scp; scp=scp->nextp) {
if (cm_FidCmp(fidp, &scp->fid) == 0) {
lock_ReleaseWrite(&cm_scacheLock);
return scp->fileType;
{
int zilch;
cm_scache_t *scp;
- char output[1024];
+ osi_queue_t *q;
+ char output[2048];
int i;
if (lock)
lock_ObtainRead(&cm_scacheLock);
- sprintf(output, "%s - dumping scache - cm_data.currentSCaches=%d, cm_data.maxSCaches=%d\r\n", cookie, cm_data.currentSCaches, cm_data.maxSCaches);
+ sprintf(output, "%s - dumping all scache - cm_data.currentSCaches=%d, cm_data.maxSCaches=%d\r\n", cookie, cm_data.currentSCaches, cm_data.maxSCaches);
WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
- for (scp = cm_data.scacheLRULastp; scp; scp = (cm_scache_t *) osi_QPrev(&scp->q))
+ for (scp = cm_data.allSCachesp; scp; scp = scp->allNextp)
{
- if (scp->refCount != 0)
- {
- sprintf(output, "%s scp=0x%p, fid (cell=%d, volume=%d, vnode=%d, unique=%d) refCount=%u\r\n",
- cookie, scp, scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique,
- scp->refCount);
+ time_t t;
+ char *srvStr = NULL;
+ afs_uint32 srvStrRpc = TRUE;
+ char *cbt = NULL;
+ char *cdrot = NULL;
+
+ if (scp->cbServerp) {
+ if (!((scp->cbServerp->flags & CM_SERVERFLAG_UUID) &&
+ UuidToString((UUID *)&scp->cbServerp->uuid, &srvStr) == RPC_S_OK)) {
+ afs_asprintf(&srvStr, "%.0I", scp->cbServerp->addr.sin_addr.s_addr);
+ srvStrRpc = FALSE;
+ }
+ }
+ if (scp->cbExpires) {
+ t = scp->cbExpires;
+ cbt = ctime(&t);
+ if (cbt) {
+ cbt = strdup(cbt);
+ cbt[strlen(cbt)-1] = '\0';
+ }
+ }
+ if (scp->volumeCreationDate) {
+ t = scp->volumeCreationDate;
+ cdrot = ctime(&t);
+ if (cdrot) {
+ cdrot = strdup(cdrot);
+ cdrot[strlen(cdrot)-1] = '\0';
+ }
+ }
+ sprintf(output,
+ "%s scp=0x%p, fid (cell=%d, volume=%d, vnode=%d, unique=%d) type=%d dv=%I64d len=0x%I64x "
+ "mp='%s' Locks (server=0x%x shared=%d excl=%d clnt=%d) fsLockCount=%d linkCount=%d anyAccess=0x%x "
+ "flags=0x%x cbServer='%s' cbExpires='%s' volumeCreationDate='%s' refCount=%u\r\n",
+ cookie, scp, scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique,
+ scp->fileType, scp->dataVersion, scp->length.QuadPart, scp->mountPointStringp,
+ scp->serverLock, scp->sharedLocks, scp->exclusiveLocks, scp->clientLocks, scp->fsLockCount,
+ scp->linkCount, scp->anyAccess, scp->flags, srvStr ? srvStr : "<none>", cbt ? cbt : "<none>",
+ cdrot ? cdrot : "<none>", scp->refCount);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+
+ if (scp->fileLocksH) {
+ sprintf(output, " %s - begin dumping scp locks\r\n", cookie);
WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+
+ for (q = scp->fileLocksH; q; q = osi_QNext(q)) {
+ cm_file_lock_t * lockp = (cm_file_lock_t *)((char *) q - offsetof(cm_file_lock_t, fileq));
+ sprintf(output, " %s lockp=0x%p scp=0x%p, cm_userp=0x%p offset=0x%I64x len=0x%08I64x type=0x%x "
+ "key=0x%I64x flags=0x%x update=0x%I64u\r\n",
+ cookie, lockp, lockp->scp, lockp->userp, lockp->range.offset, lockp->range.length,
+ lockp->lockType, lockp->key, lockp->flags, (afs_uint64)lockp->lastUpdate);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+ }
+
+ sprintf(output, " %s - done dumping scp locks\r\n", cookie);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+ }
+
+ if (srvStr) {
+ if (srvStrRpc)
+ RpcStringFree(&srvStr);
+ else
+ free(srvStr);
}
+ if (cbt)
+ free(cbt);
+ if (cdrot)
+ free(cdrot);
}
- sprintf(output, "%s - dumping cm_data.hashTable - cm_data.hashTableSize=%d\r\n", cookie, cm_data.hashTableSize);
+ sprintf(output, "%s - Done dumping all scache.\r\n", cookie);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+ sprintf(output, "%s - dumping cm_data.scacheHashTable - cm_data.scacheHashTableSize=%d\r\n",
+ cookie, cm_data.scacheHashTableSize);
WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
- for (i = 0; i < cm_data.hashTableSize; i++)
+ for (i = 0; i < cm_data.scacheHashTableSize; i++)
{
- for(scp = cm_data.hashTablep[i]; scp; scp=scp->nextp)
+ for(scp = cm_data.scacheHashTablep[i]; scp; scp=scp->nextp)
{
- if (scp->refCount != 0)
- {
- sprintf(output, "%s scp=0x%p, hash=%d, fid (cell=%d, volume=%d, vnode=%d, unique=%d) refCount=%u\r\n",
- cookie, scp, i, scp->fid.cell, scp->fid.volume, scp->fid.vnode,
- scp->fid.unique, scp->refCount);
- WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
- }
+ sprintf(output, "%s scp=0x%p, hash=%d, fid (cell=%d, volume=%d, vnode=%d, unique=%d)\r\n",
+ cookie, scp, i, scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
}
}
- sprintf(output, "%s - Done dumping scache.\r\n", cookie);
+ sprintf(output, "%s - Done dumping cm_data.scacheHashTable\r\n", cookie);
WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
-
+
+ sprintf(output, "%s - begin dumping all file locks\r\n", cookie);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+
+ for (q = cm_allFileLocks; q; q = osi_QNext(q)) {
+ cm_file_lock_t * lockp = (cm_file_lock_t *)q;
+ sprintf(output, "%s filelockp=0x%p scp=0x%p, cm_userp=0x%p offset=0x%I64x len=0x%08I64x type=0x%x key=0x%I64x flags=0x%x update=0x%I64u\r\n",
+ cookie, lockp, lockp->scp, lockp->userp, lockp->range.offset, lockp->range.length,
+ lockp->lockType, lockp->key, lockp->flags, (afs_uint64)lockp->lastUpdate);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+ }
+
+ sprintf(output, "%s - done dumping all file locks\r\n", cookie);
+ WriteFile(outputFile, output, (DWORD)strlen(output), &zilch, NULL);
+
if (lock)
lock_ReleaseRead(&cm_scacheLock);
return (0);
git://git.openafs.org / openafs.git / blobdiff