/*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
- *
+ *
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
#include <afsconfig.h>
#include <afs/param.h>
-#include <roken.h>
-
#include <afs/stds.h>
+#include <roken.h>
+
#include <windows.h>
#include <winsock2.h>
#include <nb30.h>
{
lock_AssertWrite(&cm_scacheLock);
osi_QRemoveHT((osi_queue_t **) &cm_data.scacheLRUFirstp, (osi_queue_t **) &cm_data.scacheLRULastp, &scp->q);
- osi_QAddH((osi_queue_t **) &cm_data.scacheLRUFirstp, (osi_queue_t **) &cm_data.scacheLRULastp, &scp->q);
+ if (scp->flags & CM_SCACHEFLAG_DELETED) {
+ /* Since it has been deleted make it the first to be recycled. */
+ osi_QAddT((osi_queue_t **) &cm_data.scacheLRUFirstp, (osi_queue_t **) &cm_data.scacheLRULastp, &scp->q);
+ } else {
+ osi_QAddH((osi_queue_t **) &cm_data.scacheLRUFirstp, (osi_queue_t **) &cm_data.scacheLRULastp, &scp->q);
+ }
}
/* call with cm_scacheLock write-locked and scp rw held */
cm_scache_t **lscpp;
cm_scache_t *tscp;
int i;
-
+
lock_AssertWrite(&cm_scacheLock);
lock_AssertWrite(&scp->rw);
if (scp->flags & CM_SCACHEFLAG_INHASH) {
if (tscp == scp) {
*lscpp = scp->nextp;
scp->nextp = NULL;
- scp->flags &= ~CM_SCACHEFLAG_INHASH;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_INHASH);
break;
}
}
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
+ * 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
+ * but the contents will be ignored on the next
* directory operation.
*/
scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
scp->dirBplus = NULL;
scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
QueryPerformanceCounter(&end);
-
- if (!dirlock)
+
+ if (!dirlock)
lock_ReleaseWrite(&scp->dirlock);
bplus_free_time += (end.QuadPart - start.QuadPart);
/* called with cm_scacheLock and scp write-locked; recycles an existing scp. */
long cm_RecycleSCache(cm_scache_t *scp, afs_int32 flags)
{
+ lock_AssertWrite(&cm_scacheLock);
+ lock_AssertWrite(&scp->rw);
+
if (scp->refCount != 0) {
return -1;
}
osi_QDFree(qdp);
if (bufp) {
lock_ObtainMutex(&bufp->mx);
- bufp->cmFlags &= ~CM_BUF_CMSTORING;
- bufp->flags &= ~CM_BUF_DIRTY;
+ _InterlockedAnd(&bufp->cmFlags, ~CM_BUF_CMSTORING);
+ _InterlockedAnd(&bufp->flags, ~CM_BUF_DIRTY);
bufp->dirty_offset = 0;
bufp->dirty_length = 0;
- bufp->flags |= CM_BUF_ERROR;
+ _InterlockedOr(&bufp->flags, CM_BUF_ERROR);
bufp->error = VNOVNODE;
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);
+ osi_Log2(afsd_logp, "CM RecycleSCache Waking [scp 0x%p] bufp 0x%x", scp, bufp);
osi_Wakeup((long) &bufp);
}
lock_ReleaseMutex(&bufp->mx);
osi_QDFree(qdp);
if (bufp) {
lock_ObtainMutex(&bufp->mx);
- bufp->cmFlags &= ~CM_BUF_CMFETCHING;
- bufp->flags &= ~CM_BUF_DIRTY;
+ _InterlockedAnd(&bufp->cmFlags, ~CM_BUF_CMFETCHING);
+ _InterlockedAnd(&bufp->flags, ~CM_BUF_DIRTY);
bufp->dirty_offset = 0;
bufp->dirty_length = 0;
- bufp->flags |= CM_BUF_ERROR;
+ _InterlockedOr(&bufp->flags, CM_BUF_ERROR);
bufp->error = VNOVNODE;
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);
+ osi_Log2(afsd_logp, "CM RecycleSCache Waking [scp 0x%p] bufp 0x%x", scp, bufp);
osi_Wakeup((long) &bufp);
}
lock_ReleaseMutex(&bufp->mx);
buf_Release(bufp);
}
}
- buf_CleanDirtyBuffers(scp);
+ buf_CleanDirtyBuffers(scp);
} else {
/* look for things that shouldn't still be set */
osi_assertx(scp->bufWritesp == NULL, "non-null cm_scache_t bufWritesp");
/* invalidate so next merge works fine;
* also initialize some flags */
scp->fileType = 0;
- scp->flags &= ~(CM_SCACHEFLAG_STATD
+ _InterlockedAnd(&scp->flags,
+ ~(CM_SCACHEFLAG_STATD
| CM_SCACHEFLAG_DELETED
| CM_SCACHEFLAG_RO
| CM_SCACHEFLAG_PURERO
| CM_SCACHEFLAG_OVERQUOTA
| CM_SCACHEFLAG_OUTOFSPACE
- | CM_SCACHEFLAG_EACCESS);
+ | CM_SCACHEFLAG_EACCESS));
scp->serverModTime = 0;
scp->dataVersion = CM_SCACHE_VERSION_BAD;
scp->bufDataVersionLow = CM_SCACHE_VERSION_BAD;
}
-/*
+/*
* 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.
+ * returns scp->rw write-locked.
*/
cm_scache_t *cm_GetNewSCache(void)
{
/* first pass - look for deleted objects */
for ( scp = cm_data.scacheLRULastp;
scp;
- scp = (cm_scache_t *) osi_QPrev(&scp->q))
+ scp = (cm_scache_t *) osi_QPrev(&scp->q))
{
osi_assertx(scp >= cm_data.scacheBaseAddress && scp < (cm_scache_t *)cm_data.scacheHashTablep,
"invalid cm_scache_t address");
if (!lock_TryWrite(&scp->rw))
continue;
- osi_Log1(afsd_logp, "GetNewSCache attempting to recycle deleted scp 0x%x", scp);
+ osi_Log1(afsd_logp, "GetNewSCache attempting to recycle deleted scp 0x%p", scp);
if (!cm_RecycleSCache(scp, CM_SCACHE_RECYCLEFLAG_DESTROY_BUFFERS)) {
/* we found an entry, so return it */
/* and we're done */
return scp;
- }
+ }
lock_ReleaseWrite(&scp->rw);
- osi_Log1(afsd_logp, "GetNewSCache recycled failed scp 0x%x", scp);
+ osi_Log1(afsd_logp, "GetNewSCache recycled failed scp 0x%p", scp);
} else if (!(scp->flags & CM_SCACHEFLAG_INHASH)) {
if (!lock_TryWrite(&scp->rw))
continue;
/* and we're done */
return scp;
}
- }
- }
+ }
+ }
osi_Log0(afsd_logp, "GetNewSCache no deleted or recycled entries available for reuse");
-#endif
+#endif
if (cm_data.currentSCaches >= cm_data.maxSCaches) {
/* There were no deleted scache objects that we could use. Try to find
*/
for ( scp = cm_data.scacheLRULastp;
scp;
- scp = (cm_scache_t *) osi_QPrev(&scp->q))
+ 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,
} 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.
*/
/* and put it in the LRU queue */
osi_QAdd((osi_queue_t **) &cm_data.scacheLRUFirstp, &scp->q);
- if (!cm_data.scacheLRULastp)
+ if (!cm_data.scacheLRULastp)
cm_data.scacheLRULastp = scp;
cm_data.currentSCaches++;
cm_dnlcPurgedp(scp); /* make doubly sure that this is not in dnlc */
- cm_dnlcPurgevp(scp);
+ 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)
{
return 1;
if (ap->vnode != bp->vnode)
return 1;
- if (ap->volume != bp->volume)
+ if (ap->volume != bp->volume)
return 1;
- if (ap->unique != bp->unique)
+ if (ap->unique != bp->unique)
return 1;
- if (ap->cell != bp->cell)
+ if (ap->cell != bp->cell)
return 1;
return 0;
}
return -17;
}
- for ( scp = cm_data.scacheLRUFirstp, lscp = NULL, i = 0;
+ for ( scp = cm_data.scacheLRUFirstp, lscp = NULL, i = 0;
scp;
lscp = scp, scp = (cm_scache_t *) osi_QNext(&scp->q), i++ ) {
if (scp->magic != CM_SCACHE_MAGIC) {
cm_GiveUpAllCallbacksAllServersMulti(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
+ * 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.
long
cm_ShutdownSCache(void)
{
- cm_scache_t * scp;
+ cm_scache_t * scp, * nextp;
+
+ cm_GiveUpAllCallbacksAllServersMulti(FALSE);
lock_ObtainWrite(&cm_scacheLock);
for ( scp = cm_data.allSCachesp; scp;
- scp = scp->allNextp ) {
+ scp = nextp ) {
+ nextp = scp->allNextp;
+ lock_ReleaseWrite(&cm_scacheLock);
+#ifdef USE_BPLUS
+ lock_ObtainWrite(&scp->dirlock);
+#endif
+ lock_ObtainWrite(&scp->rw);
+ lock_ObtainWrite(&cm_scacheLock);
+
if (scp->randomACLp) {
- lock_ReleaseWrite(&cm_scacheLock);
- lock_ObtainWrite(&scp->rw);
- lock_ObtainWrite(&cm_scacheLock);
cm_FreeAllACLEnts(scp);
- lock_ReleaseWrite(&scp->rw);
}
if (scp->cbServerp) {
scp->cbServerp = NULL;
}
scp->cbExpires = 0;
- scp->flags &= ~CM_SCACHEFLAG_CALLBACK;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_CALLBACK);
+ lock_ReleaseWrite(&scp->rw);
#ifdef USE_BPLUS
if (scp->dirBplus)
freeBtree(scp->dirBplus);
scp->dirBplus = NULL;
scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
+ lock_ReleaseWrite(&scp->dirlock);
lock_FinalizeRWLock(&scp->dirlock);
#endif
lock_FinalizeRWLock(&scp->rw);
}
lock_ReleaseWrite(&cm_scacheLock);
- cm_GiveUpAllCallbacksAllServersMulti(FALSE);
-
return cm_dnlcShutdown();
}
void cm_InitSCache(int newFile, long maxSCaches)
{
static osi_once_t once;
-
+
if (osi_Once(&once)) {
lock_InitializeRWLock(&cm_scacheLock, "cm_scacheLock", LOCK_HIERARCHY_SCACHE_GLOBAL);
if ( newFile ) {
scp->dirDataVersion = CM_SCACHE_VERSION_BAD;
#endif
scp->waitQueueT = NULL;
- scp->flags &= ~CM_SCACHEFLAG_WAITING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_WAITING);
}
}
cm_allFileLocks = NULL;
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);
-
+
if (fidp->cell == 0)
return CM_ERROR_INVAL;
#ifdef AFS_FREELANCE_CLIENT
- special = (fidp->cell==AFS_FAKE_ROOT_CELL_ID &&
+ 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 &&
+ isRoot = (fidp->cell==AFS_FAKE_ROOT_CELL_ID &&
fidp->volume==AFS_FAKE_ROOT_VOL_ID &&
fidp->vnode==0x1 && fidp->unique==0x1);
#endif
osi_Log1(afsd_logp,"cm_GetSCache (1) scp 0x%p", scp);
#endif
#ifdef AFS_FREELANCE_CLIENT
- if (cm_freelanceEnabled && special &&
+ if (cm_freelanceEnabled && special &&
cm_data.fakeDirVersion != scp->dataVersion)
break;
#endif
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
- * time, we will just put in a place holder entry.
+ * time, we will just put in a place holder entry.
*/
volp = NULL;
}
-
+
if (cm_freelanceEnabled && special) {
lock_ReleaseWrite(&cm_scacheLock);
osi_Log0(afsd_logp,"cm_GetSCache Freelance and special");
scp->dotdotFid.volume=AFS_FAKE_ROOT_VOL_ID;
scp->dotdotFid.unique=1;
scp->dotdotFid.vnode=1;
- scp->flags |= (CM_SCACHEFLAG_PURERO | CM_SCACHEFLAG_RO);
+ _InterlockedOr(&scp->flags, (CM_SCACHEFLAG_PURERO | CM_SCACHEFLAG_RO));
if (!(scp->flags & CM_SCACHEFLAG_INHASH)) {
scp->nextp = cm_data.scacheHashTablep[hash];
cm_data.scacheHashTablep[hash] = scp;
- scp->flags |= CM_SCACHEFLAG_INHASH;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_INHASH);
}
scp->refCount = 1;
- osi_Log1(afsd_logp,"cm_GetSCache (freelance) sets refCount to 1 scp 0x%x", scp);
+ osi_Log1(afsd_logp,"cm_GetSCache (freelance) sets refCount to 1 scp 0x%p", scp);
/* 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;
scp->owner=0x0;
if (!cm_freelanceEnabled || !isRoot) {
lock_ReleaseWrite(&cm_scacheLock); /* for perf. reasons */
cellp = cm_FindCellByID(fidp->cell, 0);
- if (!cellp)
+ if (!cellp)
return CM_ERROR_NOSUCHCELL;
code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp, CM_GETVOL_FLAG_CREATE, &volp);
- if (code)
+ if (code)
return code;
lock_ObtainWrite(&cm_scacheLock);
}
-
+
/* otherwise, we have the volume, now reverify that the scp doesn't
* exist, and proceed.
*/
return 0;
}
}
-
+
/* now, if we don't have the fid, recycle something */
scp = cm_GetNewSCache(); /* returns scp->rw held */
if (scp == NULL) {
scp->fid = *fidp;
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
+ /* 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 (volp->vol[ROVOL].ID == fidp->volume) {
- scp->flags |= (CM_SCACHEFLAG_PURERO | CM_SCACHEFLAG_RO);
+ _InterlockedOr(&scp->flags, (CM_SCACHEFLAG_PURERO | CM_SCACHEFLAG_RO));
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;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_RO);
if (scp->fid.vnode == 1 && scp->fid.unique == 1)
scp->dotdotFid = cm_VolumeStateByType(volp, BACKVOL)->dotdotFid;
} else {
cm_PutVolume(volp);
scp->nextp = cm_data.scacheHashTablep[hash];
cm_data.scacheHashTablep[hash] = scp;
- scp->flags |= CM_SCACHEFLAG_INHASH;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_INHASH);
lock_ReleaseWrite(&scp->rw);
scp->refCount = 1;
#ifdef DEBUG_REFCOUNT
- afsi_log("%s:%d cm_GetSCache sets refCount to 1 scp 0x%x", file, line, scp);
+ afsi_log("%s:%d cm_GetSCache sets refCount to 1 scp 0x%p", file, line, scp);
#endif
- osi_Log1(afsd_logp,"cm_GetSCache sets refCount to 1 scp 0x%x", scp);
+ osi_Log1(afsd_logp,"cm_GetSCache sets refCount to 1 scp 0x%p", scp);
- /* XXX - The following fields in the cm_scache are
+ /* XXX - The following fields in the cm_scache are
* uninitialized:
* fileType
* parentVnode
* parentUnique
*/
-
+
/* now we have a held scache entry; just return it */
*outScpp = scp;
#ifdef DEBUG_REFCOUNT
return 0;
}
-/* Returns a held reference to the scache's parent
+/* Returns a held reference to the scache's parent
* if it exists */
cm_scache_t * cm_FindSCacheParent(cm_scache_t * scp)
{
/* 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.
- *
+ *
* At most one flag can be on in flags, if this is an RPC request.
*
* Also, if we're fetching or storing data, we must ensure that we have a buffer.
if ((flags & CM_SCACHESYNC_FORCECB) || !cm_HaveCallback(scp)) {
osi_Log1(afsd_logp, "CM SyncOp getting callback on scp 0x%p",
scp);
- if (bufLocked)
+ if (bufLocked)
lock_ReleaseMutex(&bufp->mx);
code = cm_GetCallback(scp, userp, reqp, (flags & CM_SCACHESYNC_FORCECB)?1:0);
if (bufLocked) {
lock_ObtainMutex(&bufp->mx);
lock_ObtainWrite(&scp->rw);
}
- if (code)
+ if (code)
return code;
flags &= ~CM_SCACHESYNC_FORCECB; /* only force once */
continue;
return CM_ERROR_READONLY;
if (cm_HaveAccessRights(scp, userp, rights, &outRights)) {
- if (~outRights & rights)
+ if (~outRights & rights)
return CM_ERROR_NOACCESS;
}
else {
lock_ObtainMutex(&bufp->mx);
lock_ObtainWrite(&scp->rw);
}
- if (code)
+ if (code)
return code;
continue;
}
break;
sleep:
- /* first check if we're not supposed to wait: fail
+ /* first check if we're not supposed to wait: fail
* in this case, returning with everything still locked.
*/
- if (flags & CM_SCACHESYNC_NOWAIT)
+ if (flags & CM_SCACHESYNC_NOWAIT)
return CM_ERROR_WOULDBLOCK;
/* These are used for minidump debugging */
if ( scp->flags & CM_SCACHEFLAG_WAITING ) {
scp->waitCount++;
scp->waitRequests++;
- osi_Log3(afsd_logp, "CM SyncOp CM_SCACHEFLAG_WAITING already set for 0x%p; %d threads; %d requests",
+ osi_Log3(afsd_logp, "CM SyncOp CM_SCACHEFLAG_WAITING already set for 0x%p; %d threads; %d requests",
scp, scp->waitCount, scp->waitRequests);
} else {
osi_Log1(afsd_logp, "CM SyncOp CM_SCACHEFLAG_WAITING set for 0x%p", scp);
- scp->flags |= CM_SCACHEFLAG_WAITING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_WAITING);
scp->waitCount = scp->waitRequests = 1;
}
cm_SyncOpAddToWaitQueue(scp, flags, bufp);
wakeupCycle = 0;
do {
- if (bufLocked)
+ if (bufLocked)
lock_ReleaseMutex(&bufp->mx);
osi_SleepW((LONG_PTR) &scp->flags, &scp->rw);
- if (bufLocked)
+ if (bufLocked)
lock_ObtainMutex(&bufp->mx);
lock_ObtainWrite(&scp->rw);
} while (!cm_SyncOpCheckContinue(scp, flags, bufp));
cm_UpdateServerPriority();
scp->waitCount--;
- osi_Log3(afsd_logp, "CM SyncOp woke! scp 0x%p; still waiting %d threads of %d requests",
+ osi_Log3(afsd_logp, "CM SyncOp woke! scp 0x%p; still waiting %d threads of %d requests",
scp, scp->waitCount, scp->waitRequests);
if (scp->waitCount == 0) {
osi_Log1(afsd_logp, "CM SyncOp CM_SCACHEFLAG_WAITING reset for 0x%p", scp);
- scp->flags &= ~CM_SCACHEFLAG_WAITING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_WAITING);
scp->waitRequests = 0;
}
} /* big while loop */
-
+
/* now, update the recorded state for RPC-type calls */
if (flags & CM_SCACHESYNC_FETCHSTATUS)
- scp->flags |= CM_SCACHEFLAG_FETCHING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_FETCHING);
if (flags & CM_SCACHESYNC_STORESTATUS)
- scp->flags |= CM_SCACHEFLAG_STORING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_STORING);
if (flags & CM_SCACHESYNC_SETSIZE)
- scp->flags |= CM_SCACHEFLAG_SIZESETTING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_SIZESETTING);
if (flags & CM_SCACHESYNC_STORESIZE)
- scp->flags |= CM_SCACHEFLAG_SIZESTORING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_SIZESTORING);
if (flags & CM_SCACHESYNC_GETCALLBACK)
- scp->flags |= CM_SCACHEFLAG_GETCALLBACK;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_GETCALLBACK);
if (flags & CM_SCACHESYNC_STOREDATA_EXCL)
- scp->flags |= CM_SCACHEFLAG_DATASTORING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_DATASTORING);
if (flags & CM_SCACHESYNC_ASYNCSTORE)
- scp->flags |= CM_SCACHEFLAG_ASYNCSTORING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_ASYNCSTORING);
if (flags & CM_SCACHESYNC_LOCK)
- scp->flags |= CM_SCACHEFLAG_LOCKING;
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_LOCKING);
/* now update the buffer pointer */
if (bufp && (flags & CM_SCACHESYNC_FETCHDATA)) {
osi_SetQData(qdp, bufp);
buf_Hold(bufp);
- bufp->cmFlags |= CM_BUF_CMFETCHING;
+ _InterlockedOr(&bufp->cmFlags, CM_BUF_CMFETCHING);
osi_QAdd((osi_queue_t **) &scp->bufReadsp, &qdp->q);
}
qdp = osi_QDAlloc();
osi_SetQData(qdp, bufp);
buf_Hold(bufp);
- bufp->cmFlags |= CM_BUF_CMSTORING;
+ _InterlockedOr(&bufp->cmFlags, CM_BUF_CMSTORING);
osi_QAdd((osi_queue_t **) &scp->bufWritesp, &qdp->q);
}
if (bufp && (flags & CM_SCACHESYNC_WRITE)) {
/* mark the buffer as being written to. */
- bufp->cmFlags |= CM_BUF_CMWRITING;
+ _InterlockedOr(&bufp->cmFlags, CM_BUF_CMWRITING);
}
return 0;
/* now, update the recorded state for RPC-type calls */
if (flags & CM_SCACHESYNC_FETCHSTATUS)
- scp->flags &= ~CM_SCACHEFLAG_FETCHING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_FETCHING);
if (flags & CM_SCACHESYNC_STORESTATUS)
- scp->flags &= ~CM_SCACHEFLAG_STORING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_STORING);
if (flags & CM_SCACHESYNC_SETSIZE)
- scp->flags &= ~CM_SCACHEFLAG_SIZESETTING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_SIZESETTING);
if (flags & CM_SCACHESYNC_STORESIZE)
- scp->flags &= ~CM_SCACHEFLAG_SIZESTORING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_SIZESTORING);
if (flags & CM_SCACHESYNC_GETCALLBACK)
- scp->flags &= ~CM_SCACHEFLAG_GETCALLBACK;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_GETCALLBACK);
if (flags & CM_SCACHESYNC_STOREDATA_EXCL)
- scp->flags &= ~CM_SCACHEFLAG_DATASTORING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_DATASTORING);
if (flags & CM_SCACHESYNC_ASYNCSTORE)
- scp->flags &= ~CM_SCACHEFLAG_ASYNCSTORING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_ASYNCSTORING);
if (flags & CM_SCACHESYNC_LOCK)
- scp->flags &= ~CM_SCACHEFLAG_LOCKING;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_LOCKING);
/* now update the buffer pointer */
if (bufp && (flags & CM_SCACHESYNC_FETCHDATA)) {
/* ensure that the buffer is in the I/O list */
for (qdp = scp->bufReadsp; qdp; qdp = (osi_queueData_t *) osi_QNext(&qdp->q)) {
tbufp = osi_GetQData(qdp);
- if (tbufp == bufp)
+ if (tbufp == bufp)
break;
}
if (qdp) {
osi_QDFree(qdp);
release = 1;
}
- bufp->cmFlags &= ~(CM_BUF_CMFETCHING | CM_BUF_CMFULLYFETCHED);
+ _InterlockedAnd(&bufp->cmFlags, ~(CM_BUF_CMFETCHING | CM_BUF_CMFULLYFETCHED));
if (bufp->flags & CM_BUF_WAITING) {
osi_Log2(afsd_logp, "CM SyncOpDone FetchData Waking [scp 0x%p] bufp 0x%p", scp, bufp);
osi_Wakeup((LONG_PTR) &bufp);
/* ensure that the buffer is in the I/O list */
for (qdp = scp->bufWritesp; qdp; qdp = (osi_queueData_t *) osi_QNext(&qdp->q)) {
tbufp = osi_GetQData(qdp);
- if (tbufp == bufp)
+ if (tbufp == bufp)
break;
}
if (qdp) {
osi_QDFree(qdp);
release = 1;
}
- bufp->cmFlags &= ~CM_BUF_CMSTORING;
+ _InterlockedAnd(&bufp->cmFlags, ~CM_BUF_CMSTORING);
if (bufp->flags & CM_BUF_WAITING) {
osi_Log2(afsd_logp, "CM SyncOpDone StoreData Waking [scp 0x%p] bufp 0x%p", scp, bufp);
osi_Wakeup((LONG_PTR) &bufp);
if (bufp && (flags & CM_SCACHESYNC_WRITE)) {
osi_assertx(bufp->cmFlags & CM_BUF_CMWRITING, "!CM_BUF_CMWRITING");
- bufp->cmFlags &= ~CM_BUF_CMWRITING;
+ _InterlockedAnd(&bufp->cmFlags, ~CM_BUF_CMWRITING);
}
/* and wakeup anyone who is waiting */
osi_Log3(afsd_logp, "CM SyncOpDone 0x%x Waking scp 0x%p bufp 0x%p", flags, scp, bufp);
osi_Wakeup((LONG_PTR) &scp->flags);
}
-}
+}
/* merge in a response from an RPC. The scp must be locked, and the callback
* is optional.
* 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 *dscp,
- cm_scache_t *scp, AFSFetchStatus *statusp,
+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)
{
struct cm_volume *volp = NULL;
struct cm_cell *cellp = NULL;
+ lock_AssertWrite(&scp->rw);
+
// yj: i want to create some fake status for the /afs directory and the
// entries under that directory
#ifdef AFS_FREELANCE_CLIENT
}
#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);
+ if (statusp->errorCode != 0) {
+ _InterlockedOr(&scp->flags, CM_SCACHEFLAG_EACCESS);
+ osi_Log2(afsd_logp, "Merge, Failure scp 0x%p code 0x%x", scp, statusp->errorCode);
scp->fileType = 0; /* unknown */
}
goto done;
} else {
- scp->flags &= ~CM_SCACHEFLAG_EACCESS;
+ _InterlockedAnd(&scp->flags, ~CM_SCACHEFLAG_EACCESS);
}
dataVersion = statusp->dataVersionHigh;
dataVersion <<= 32;
dataVersion |= statusp->DataVersion;
- if (!(flags & CM_MERGEFLAG_FORCE) &&
+ if (!(flags & CM_MERGEFLAG_FORCE) &&
dataVersion < scp->dataVersion &&
scp->dataVersion != CM_SCACHE_VERSION_BAD) {
scp->cbServerp->addr.sin_addr.s_addr,
volp ? volp->namep : "(unknown)");
}
- osi_Log3(afsd_logp, "Bad merge, scp %x, scp dv %d, RPC dv %d",
+ osi_Log3(afsd_logp, "Bad merge, scp 0x%p, scp dv %d, RPC dv %d",
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
*/
if (!(scp->flags & CM_SCACHEFLAG_RO))
goto done;
- }
+ }
if (cm_readonlyVolumeVersioning)
scp->volumeCreationDate = volsyncp->spare1; /* volume creation date */
scp->fileType = CM_SCACHETYPE_MOUNTPOINT;
else
scp->fileType = CM_SCACHETYPE_SYMLINK;
- }
+ }
else {
- osi_Log2(afsd_logp, "Merge, Invalid File Type (%d), scp %x", statusp->FileType, scp);
+ osi_Log2(afsd_logp, "Merge, Invalid File Type (%d), scp 0x%p", statusp->FileType, scp);
scp->fileType = CM_SCACHETYPE_INVALID; /* invalid */
}
/* and other stuff */
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.
for (bp = cm_data.buf_fileHashTablepp[i]; bp; bp=nextBp)
{
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
*/
if (cm_FidCmp(&scp->fid, &bp->fid) == 0 &&
lock_TryMutex(&bp->mx)) {
- if (bp->refCount == 0 &&
+ if (bp->refCount == 0 &&
!(bp->flags & CM_BUF_READING | CM_BUF_WRITING | CM_BUF_DIRTY)) {
prevBp = bp->fileHashBackp;
bp->fileHashBackp = bp->fileHashp = NULL;
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)
+ if (tbp == bp)
break;
}
*lbpp = bp->hashp; /* hash out */
bp->hashp = NULL;
- bp->qFlags &= ~CM_BUF_QINHASH;
+ _InterlockedAnd(&bp->qFlags, ~CM_BUF_QINHASH);
}
lock_ReleaseMutex(&bp->mx);
}
if (scp->dataVersion != dataVersion && !(flags & CM_MERGEFLAG_FETCHDATA))
scp->mountPointStringp[0] = '\0';
- /* We maintain a range of buffer dataVersion values which are considered
+ /* 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
+ * 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) ||
+ 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
+ * now even though the entity that issued the FetchStatus may not
* have completed yet.
*/
cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_FETCHSTATUS);
}
scp->cbExpires = 0;
scp->volumeCreationDate = 0;
- scp->flags &= ~(CM_SCACHEFLAG_CALLBACK | CM_SCACHEFLAG_LOCAL);
+ _InterlockedAnd(&scp->flags, ~(CM_SCACHEFLAG_CALLBACK | CM_SCACHEFLAG_LOCAL));
cm_dnlcPurgedp(scp);
cm_dnlcPurgevp(scp);
cm_FreeAllACLEnts(scp);
afsFidp->Volume = fidp->volume;
afsFidp->Vnode = fidp->vnode;
afsFidp->Unique = fidp->unique;
-}
+}
#ifdef DEBUG_REFCOUNT
void cm_HoldSCacheNoLockDbg(cm_scache_t *scp, char * file, long line)
#else
void cm_HoldSCacheNoLock(cm_scache_t *scp)
#endif
-{
+{
afs_int32 refCount;
osi_assertx(scp != NULL, "null cm_scache_t");
long lockstate;
lockstate = lock_GetRWLockState(&cm_scacheLock);
- if (lockstate != OSI_RWLOCK_WRITEHELD)
+ if (lockstate != OSI_RWLOCK_WRITEHELD)
lock_ReleaseRead(&cm_scacheLock);
else
lock_ReleaseWrite(&cm_scacheLock);
if (refCount == 0 && deleted) {
lock_ObtainWrite(&cm_scacheLock);
cm_RecycleSCache(scp, 0);
- if (lockstate != OSI_RWLOCK_WRITEHELD)
+ if (lockstate != OSI_RWLOCK_WRITEHELD)
lock_ConvertWToR(&cm_scacheLock);
} else {
- if (lockstate != OSI_RWLOCK_WRITEHELD)
+ if (lockstate != OSI_RWLOCK_WRITEHELD)
lock_ObtainRead(&cm_scacheLock);
else
lock_ObtainWrite(&cm_scacheLock);
#else
void cm_ReleaseSCache(cm_scache_t *scp)
#endif
-{
+{
afs_int32 refCount;
osi_assertx(scp != NULL, "null cm_scache_t");
{
long hash;
cm_scache_t *scp;
-
+
hash = CM_SCACHE_HASH(fidp);
-
+
osi_assertx(fidp->cell != 0, "unassigned cell value");
lock_ObtainWrite(&cm_scacheLock);
return 0;
}
-/* dump all scp's that have reference count > 0 to a file.
- * cookie is used to identify this batch for easy parsing,
- * and it a string provided by a caller
+/* dump all scp's that have reference count > 0 to a file.
+ * cookie is used to identify this batch for easy parsing,
+ * and it a string provided by a caller
*/
int cm_DumpSCache(FILE *outputFile, char *cookie, int lock)
{
osi_queue_t *q;
char output[2048];
int i;
-
+
if (lock)
lock_ObtainRead(&cm_scacheLock);
-
+
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.allSCachesp; scp; scp = scp->allNextp)
+
+ for (scp = cm_data.allSCachesp; scp; scp = scp->allNextp)
{
time_t t;
char *srvStr = NULL;
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 (cdrot)
free(cdrot);
}
-
+
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.scacheHashTableSize; i++)
{
- for(scp = cm_data.scacheHashTablep[i]; scp; scp=scp->nextp)
+ for(scp = cm_data.scacheHashTablep[i]; scp; scp=scp->nextp)
{
- sprintf(output, "%s scp=0x%p, hash=%d, fid (cell=%d, volume=%d, vnode=%d, unique=%d)\r\n",
+ 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);
}
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,
+ 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);
+ lock_ReleaseRead(&cm_scacheLock);
+ return (0);
}
git://git.openafs.org / openafs.git / blobdiff