#endif /* AFS_SGI64_ENV */
/* Exported variables */
+#ifdef AFS_DISCON_ENV
+afs_rwlock_t afs_xvcdirty; /*Lock: discon vcache dirty list mgmt */
+#endif
afs_rwlock_t afs_xvcache; /*Lock: alloc new stat cache entries */
afs_rwlock_t afs_xvreclaim; /*Lock: entries reclaimed, not on free list */
afs_lock_t afs_xvcb; /*Lock: fids on which there are callbacks */
static struct afs_cbr *afs_cbrHashT[CBRSIZE];
afs_int32 afs_bulkStatsLost;
int afs_norefpanic = 0;
+extern int afsd_dynamic_vcaches;
+
+
+/* Disk backed vcache definitions
+ * Both protected by xvcache */
+static int afs_nextVcacheSlot = 0;
+static struct afs_slotlist *afs_freeSlotList = NULL;
/* Forward declarations */
static afs_int32 afs_QueueVCB(struct vcache *avc);
-/*
- * afs_HashCBRFid
- *
+/*!
* Generate an index into the hash table for a given Fid.
+ * \param fid
+ * \return The hash value.
*/
static int
afs_HashCBRFid(struct AFSFid *fid)
return (fid->Volume + fid->Vnode + fid->Unique) % CBRSIZE;
}
-/*
- * afs_InsertHashCBR
- *
+/*!
* Insert a CBR entry into the hash table.
* Must be called with afs_xvcb held.
+ * \param cbr
+ * \return
*/
static void
afs_InsertHashCBR(struct afs_cbr *cbr)
afs_cbrHashT[slot] = cbr;
}
-/*
- * afs_FlushVCache
- *
- * Description:
- * Flush the given vcache entry.
+/*!
*
- * Parameters:
- * avc : Pointer to vcache entry to flush.
- * slept : Pointer to int to set 1 if we sleep/drop locks, 0 if we don't.
+ * Flush the given vcache entry.
*
* Environment:
* afs_xvcache lock must be held for writing upon entry to
* LOCK: afs_FlushVCache afs_xvcache W
* REFCNT: vcache ref count must be zero on entry except for osf1
* RACE: lock is dropped and reobtained, permitting race in caller
+ *
+ * \param avc Pointer to vcache entry to flush.
+ * \param slept Pointer to int to set 1 if we sleep/drop locks, 0 if we don't.
+ *
*/
-
int
afs_FlushVCache(struct vcache *avc, int *slept)
{ /*afs_FlushVCache */
*slept = 0;
AFS_STATCNT(afs_FlushVCache);
afs_Trace2(afs_iclSetp, CM_TRACE_FLUSHV, ICL_TYPE_POINTER, avc,
- ICL_TYPE_INT32, avc->states);
+ ICL_TYPE_INT32, avc->f.states);
#ifdef AFS_OSF_ENV
AFS_GUNLOCK();
VN_LOCK(AFSTOV(avc));
if (code)
goto bad;
- if (avc->states & CVFlushed) {
+ if (avc->f.states & CVFlushed) {
code = EBUSY;
goto bad;
}
refpanic("LRU vs. Free inconsistency");
}
#endif
- avc->states |= CVFlushed;
+ avc->f.states |= CVFlushed;
/* pull the entry out of the lruq and put it on the free list */
QRemove(&avc->vlruq);
/* keep track of # of files that we bulk stat'd, but never used
* before they got recycled.
*/
- if (avc->states & CBulkStat)
+ if (avc->f.states & CBulkStat)
afs_bulkStatsLost++;
vcachegen++;
/* remove entry from the hash chain */
- i = VCHash(&avc->fid);
+ i = VCHash(&avc->f.fid);
uvc = &afs_vhashT[i];
for (wvc = *uvc; wvc; uvc = &wvc->hnext, wvc = *uvc) {
if (avc == wvc) {
* server only tracks them on a per-volume basis, and we don't
* know whether we still have some other files from the same
* volume. */
- if ((avc->states & CRO) == 0 && avc->callback) {
+ if ((avc->f.states & CRO) == 0 && avc->callback) {
afs_QueueVCB(avc);
}
ObtainWriteLock(&afs_xcbhash, 460);
afs_DequeueCallback(avc); /* remove it from queued callbacks list */
- avc->states &= ~(CStatd | CUnique);
+ avc->f.states &= ~(CStatd | CUnique);
ReleaseWriteLock(&afs_xcbhash);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ if ((avc->f.states & CForeign) || (avc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(avc); /* if it (could be) a directory */
else
osi_dnlc_purgevp(avc);
* optimistic synchronization algorithm
*/
afs_allZaps++;
- if (avc->fid.Fid.Vnode & 1)
+ if (avc->f.fid.Fid.Vnode & 1)
afs_oddZaps++;
else
afs_evenZaps++;
if (avc->vlruq.prev || avc->vlruq.next) {
refpanic("LRU vs. Free inconsistency");
}
- avc->states |= CVFlushed;
+ avc->f.states |= CVFlushed;
#else
/* This should put it back on the vnode free list since usecount is 1 */
afs_vcount--;
VN_UNLOCK(AFSTOV(avc));
#endif
AFS_RELE(AFSTOV(avc));
+ afs_stats_cmperf.vcacheXAllocs--;
} else {
if (afs_norefpanic) {
printf("flush vc refcnt < 1");
} /*afs_FlushVCache */
#ifndef AFS_SGI_ENV
-/*
- * afs_InactiveVCache
+/*!
+ * The core of the inactive vnode op for all but IRIX.
*
- * The core of the inactive vnode op for all but IRIX.
+ * \param avc
+ * \param acred
*/
void
afs_InactiveVCache(struct vcache *avc, struct AFS_UCRED *acred)
{
AFS_STATCNT(afs_inactive);
- if (avc->states & CDirty) {
+ if (avc->f.states & CDirty) {
/* we can't keep trying to push back dirty data forever. Give up. */
afs_InvalidateAllSegments(avc); /* turns off dirty bit */
}
- avc->states &= ~CMAPPED; /* mainly used by SunOS 4.0.x */
- avc->states &= ~CDirty; /* Turn it off */
- if (avc->states & CUnlinked) {
+ avc->f.states &= ~CMAPPED; /* mainly used by SunOS 4.0.x */
+ avc->f.states &= ~CDirty; /* Turn it off */
+ if (avc->f.states & CUnlinked) {
if (CheckLock(&afs_xvcache) || CheckLock(&afs_xdcache)) {
- avc->states |= CUnlinkedDel;
+ avc->f.states |= CUnlinkedDel;
return;
}
afs_remunlink(avc, 1); /* ignore any return code */
}
#endif
-/*
- * afs_AllocCBR
- *
- * Description: allocate a callback return structure from the
+/*!
+ * Allocate a callback return structure from the
* free list and return it.
*
- * Env: The alloc and free routines are both called with the afs_xvcb lock
+ * Environment: The alloc and free routines are both called with the afs_xvcb lock
* held, so we don't have to worry about blocking in osi_Alloc.
+ *
+ * \return The allocated afs_cbr.
*/
static struct afs_cbr *afs_cbrSpace = 0;
struct afs_cbr *
return tsp;
}
-/*
- * afs_FreeCBR
+/*!
+ * Free a callback return structure, removing it from all lists.
*
- * Description: free a callback return structure, removing it from all lists.
+ * Environment: the xvcb lock is held over these calls.
*
- * Parameters:
- * asp -- the address of the structure to free.
+ * \param asp The address of the structure to free.
*
- * Environment: the xvcb lock is held over these calls.
+ * \rerurn 0
*/
int
afs_FreeCBR(register struct afs_cbr *asp)
return 0;
}
-/*
- * afs_FlushVCBs
- *
- * Description: flush all queued callbacks to all servers.
- *
- * Parameters: none.
+/*!
+ * Flush all queued callbacks to all servers.
*
* Environment: holds xvcb lock over RPC to guard against race conditions
* when a new callback is granted for the same file later on.
+ *
+ * \return 0 for success.
*/
afs_int32
afs_FlushVCBs(afs_int32 lockit)
struct server *tsp;
int i;
struct vrequest treq;
- struct conn *tc;
+ struct afs_conn *tc;
int safety1, safety2, safety3;
XSTATS_DECLS;
if ((code = afs_InitReq(&treq, afs_osi_credp)))
return 0;
}
-/*
- * afs_QueueVCB
- *
- * Description:
- * Queue a callback on the given fid.
- *
- * Parameters:
- * avc: vcache entry
+/*!
+ * Queue a callback on the given fid.
*
* Environment:
* Locks the xvcb lock.
* Called when the xvcache lock is already held.
+ *
+ * \param avc vcache entry
+ * \return 0 for success < 0 otherwise.
*/
static afs_int32
*/
MObtainWriteLock(&afs_xvcb, 274);
tcbp = afs_AllocCBR();
- tcbp->fid = avc->fid.Fid;
+ tcbp->fid = avc->f.fid.Fid;
tcbp->next = tsp->cbrs;
if (tsp->cbrs)
}
-/*
- * afs_RemoveVCB
- *
- * Description:
- * Remove a queued callback for a given Fid.
- *
- * Parameters:
- * afid: The fid we want cleansed of queued callbacks.
+/*!
+ * Remove a queued callback for a given Fid.
*
* Environment:
* Locks xvcb and xserver locks.
* Typically called with xdcache, xvcache and/or individual vcache
* entries locked.
+ *
+ * \param afid The fid we want cleansed of queued callbacks.
+ *
*/
void
tmpReclaimedVCList = tvc;
printf("Reclaim list flush %lx failed: %d\n", (unsigned long) tvc, code);
}
- if (tvc->states & (CVInit
+ if (tvc->f.states & (CVInit
#ifdef AFS_DARWIN80_ENV
| CDeadVnode
#endif
)) {
- tvc->states &= ~(CVInit
+ tvc->f.states &= ~(CVInit
#ifdef AFS_DARWIN80_ENV
| CDeadVnode
#endif
);
- afs_osi_Wakeup(&tvc->states);
+ afs_osi_Wakeup(&tvc->f.states);
}
}
if (tmpReclaimedVCList)
#endif
}
-/*
- * afs_NewVCache
- *
- * Description:
- * This routine is responsible for allocating a new cache entry
- * from the free list. It formats the cache entry and inserts it
- * into the appropriate hash tables. It must be called with
- * afs_xvcache write-locked so as to prevent several processes from
- * trying to create a new cache entry simultaneously.
- *
- * Parameters:
- * afid : The file id of the file whose cache entry is being
- * created.
- */
-/* LOCK: afs_NewVCache afs_xvcache W */
-struct vcache *
-afs_NewVCache(struct VenusFid *afid, struct server *serverp)
+int
+afs_ShakeLooseVCaches(afs_int32 anumber)
{
- struct vcache *tvc;
+#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
afs_int32 i, j;
- afs_int32 anumber = VCACHE_FREE;
-#ifdef AFS_AIX_ENV
- struct gnode *gnodepnt;
-#endif
-#ifdef AFS_OSF_ENV
- struct vcache *nvc;
-#endif /* AFS_OSF_ENV */
+ struct vcache *tvc;
struct afs_q *tq, *uq;
int code, fv_slept;
+ afs_int32 target = anumber;
+ int haveGlock = 1;
- AFS_STATCNT(afs_NewVCache);
-
- afs_FlushReclaimedVcaches();
+ /* Should probably deal better */
+ if (!ISAFS_GLOCK()) {
+ haveGlock = 0;
+ AFS_GLOCK();
+ }
-#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
-#if defined(AFS_OSF30_ENV) || defined(AFS_LINUX22_ENV)
- if (afs_vcount >= afs_maxvcount)
-#else
- /*
- * If we are using > 33 % of the total system vnodes for AFS vcache
- * entries or we are using the maximum number of vcache entries,
- * then free some. (if our usage is > 33% we should free some, if
- * our usage is > afs_maxvcount, set elsewhere to 0.5*nvnode,
- * we _must_ free some -- no choice).
- */
- if (((3 * afs_vcount) > nvnode) || (afs_vcount >= afs_maxvcount))
+ if (
+#ifdef AFS_MAXVCOUNT_ENV
+ afsd_dynamic_vcaches || /* Always run if dynamic vcaches are enabled. */
#endif
- {
+ afs_vcount >= afs_maxvcount
+ ) {
int i;
- char *panicstr;
i = 0;
for (tq = VLRU.prev; tq != &VLRU && anumber > 0; tq = uq) {
tvc = QTOV(tq);
uq = QPrev(tq);
- if (tvc->states & CVFlushed) {
+ if (tvc->f.states & CVFlushed) {
refpanic("CVFlushed on VLRU");
- } else if (i++ > afs_maxvcount) {
+ } else if (
+#ifdef AFS_MAXVCOUNT_ENV
+ ! afsd_dynamic_vcaches &&
+#endif
+ i++ > afs_maxvcount) {
refpanic("Exceeded pool of AFS vnodes(VLRU cycle?)");
} else if (QNext(uq) != tq) {
refpanic("VLRU inconsistent");
AFS_GUNLOCK();
#if defined(AFS_LINUX24_ENV)
spin_lock(&dcache_lock);
-#endif
+#endif /* AFS_LINUX24_ENV */
head = &(AFSTOV(tvc))->i_dentry;
restart:
#if defined(AFS_LINUX24_ENV)
spin_unlock(&dcache_lock);
-#endif
+#endif /* AFS_LINUX24_ENV */
if (d_invalidate(dentry) == -EBUSY) {
dput(dentry);
/* perhaps lock and try to continue? (use cur as head?) */
dput(dentry);
#if defined(AFS_LINUX24_ENV)
spin_lock(&dcache_lock);
-#endif
+#endif /* AFS_LINUX24_ENV */
goto restart;
}
#if defined(AFS_LINUX24_ENV)
spin_unlock(&dcache_lock);
-#endif
+#endif /* AFS_LINUX24_ENV */
inuse:
AFS_GLOCK();
}
-#endif
+#endif /* AFS_LINUX22_ENV */
if (VREFCOUNT_GT(tvc,0) && !VREFCOUNT_GT(tvc,1) &&
tvc->opens == 0
- && (tvc->states & CUnlinkedDel) == 0) {
+ && (tvc->f.states & CUnlinkedDel) == 0) {
code = afs_FlushVCache(tvc, &fv_slept);
if (code == 0) {
anumber--;
if (tq == uq)
break;
}
- if (anumber == VCACHE_FREE) {
- printf("afs_NewVCache: warning none freed, using %d of %d\n",
+ if (
+#ifdef AFS_MAXVCOUNT_ENV
+ !afsd_dynamic_vcaches &&
+#endif
+ anumber == target) {
+ printf("afs_ShakeLooseVCaches: warning none freed, using %d of %d\n",
afs_vcount, afs_maxvcount);
- if (afs_vcount >= afs_maxvcount) {
- printf("afs_NewVCache - none freed\n");
- return NULL;
- }
}
- }
+ } /* finished freeing up space */
+/*
+ printf("recycled %d entries\n", target-anumber);
+*/
+ if (!haveGlock)
+ AFS_GUNLOCK();
+#endif
+ return 0;
+}
-#if defined(AFS_LINUX22_ENV)
+/* Alloc new vnode. */
+
+static struct vcache *
+afs_AllocVCache(void)
{
+ struct vcache *tvc;
+#if defined(AFS_OSF30_ENV)
+ struct vcache *nvc;
+ AFS_GUNLOCK();
+ if (getnewvnode(MOUNT_AFS, &Afs_vnodeops, &nvc)) {
+ /* What should we do ???? */
+ osi_Panic("afs_AllocVCache: no more vnodes");
+ }
+ AFS_GLOCK();
+
+ tvc = nvc;
+ tvc->nextfree = NULL;
+ afs_vcount++;
+#elif defined(AFS_LINUX22_ENV)
struct inode *ip;
AFS_GUNLOCK();
ip = new_inode(afs_globalVFS);
if (!ip)
- osi_Panic("afs_NewVCache: no more inodes");
+ osi_Panic("afs_AllocVCache: no more inodes");
AFS_GLOCK();
#if defined(STRUCT_SUPER_HAS_ALLOC_INODE)
tvc = VTOAFS(ip);
ip->u.generic_ip = tvc;
tvc->v = ip;
#endif
-}
+
+ afs_vcount++;
+#ifdef AFS_MAXVCOUNT_ENV
+ /* track the peak */
+ if (afsd_dynamic_vcaches && afs_maxvcount < afs_vcount) {
+ afs_maxvcount = afs_vcount;
+ printf("peak vnodes: %d\n", afs_maxvcount);
+ }
+#endif
+ afs_stats_cmperf.vcacheXAllocs++; /* count in case we have a leak */
#else
- AFS_GUNLOCK();
- if (getnewvnode(MOUNT_AFS, &Afs_vnodeops, &nvc)) {
- /* What should we do ???? */
- osi_Panic("afs_NewVCache: no more vnodes");
+ /* none free, making one is better than a panic */
+ afs_stats_cmperf.vcacheXAllocs++; /* count in case we have a leak */
+ tvc = (struct vcache *)afs_osi_Alloc(sizeof(struct vcache));
+#if defined(AFS_DARWIN_ENV) && !defined(UKERNEL)
+ tvc->v = NULL; /* important to clean this, or use memset 0 */
+#endif
+#ifdef KERNEL_HAVE_PIN
+ pin((char *)tvc, sizeof(struct vcache)); /* XXX */
+#endif
+#if defined(AFS_SGI_ENV)
+ {
+ char name[METER_NAMSZ];
+ memset(tvc, 0, sizeof(struct vcache));
+ tvc->v.v_number = ++afsvnumbers;
+ tvc->vc_rwlockid = OSI_NO_LOCKID;
+ initnsema(&tvc->vc_rwlock, 1,
+ makesname(name, "vrw", tvc->v.v_number));
+#ifndef AFS_SGI53_ENV
+ initnsema(&tvc->v.v_sync, 0,
+ makesname(name, "vsy", tvc->v.v_number));
+#endif
+#ifndef AFS_SGI62_ENV
+ initnlock(&tvc->v.v_lock,
+ makesname(name, "vlk", tvc->v.v_number));
+#endif
}
- AFS_GLOCK();
+#endif /* AFS_SGI_ENV */
+#endif
+#ifdef AFS_DISCON_ENV
+ /* If we create a new inode, we either give it a new slot number,
+ * or if one's available, use a slot number from the slot free list
+ */
+ if (afs_freeSlotList != NULL) {
+ struct afs_slotlist *tmp;
+
+ tvc->diskSlot = afs_freeSlotList->slot;
+ tmp = afs_freeSlotList;
+ afs_freeSlotList = tmp->next;
+ afs_osi_Free(tmp, sizeof(struct afs_slotlist));
+ } else {
+ tvc->diskSlot = afs_nextVcacheSlot++;
+ }
+#endif
- tvc = nvc;
- tvc->nextfree = NULL;
+ return tvc;
+}
+
+/*!
+ * This routine is responsible for allocating a new cache entry
+ * from the free list. It formats the cache entry and inserts it
+ * into the appropriate hash tables. It must be called with
+ * afs_xvcache write-locked so as to prevent several processes from
+ * trying to create a new cache entry simultaneously.
+ *
+ * LOCK: afs_NewVCache afs_xvcache W
+ *
+ * \param afid The file id of the file whose cache entry is being created.
+ *
+ * \return The new vcache struct.
+ */
+struct vcache *
+afs_NewVCache(struct VenusFid *afid, struct server *serverp)
+{
+ struct vcache *tvc;
+ afs_int32 i, j;
+ afs_int32 anumber = VCACHE_FREE;
+#ifdef AFS_AIX_ENV
+ struct gnode *gnodepnt;
#endif
- afs_vcount++;
+ struct afs_q *tq, *uq;
+ int code, fv_slept;
+
+ AFS_STATCNT(afs_NewVCache);
+
+ afs_FlushReclaimedVcaches();
+
+#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
+#ifdef AFS_MAXVCOUNT_ENV
+ if(!afsd_dynamic_vcaches) {
+#endif
+ afs_ShakeLooseVCaches(anumber);
+ if (afs_vcount >= afs_maxvcount) {
+ printf("afs_NewVCache - none freed\n");
+ return NULL;
+ }
+#ifdef AFS_MAXVCOUNT_ENV
+ }
+#endif
+ tvc = afs_AllocVCache();
#else /* AFS_OSF_ENV */
/* pull out a free cache entry */
if (!freeVCList) {
tvc = QTOV(tq);
uq = QPrev(tq);
- if (tvc->states & CVFlushed) {
+ if (tvc->f.states & CVFlushed) {
refpanic("CVFlushed on VLRU");
} else if (i++ > 2 * afs_cacheStats) { /* even allowing for a few xallocs... */
refpanic("Increase -stat parameter of afsd(VLRU cycle?)");
} else if (QNext(uq) != tq) {
refpanic("VLRU inconsistent");
- } else if (tvc->states & CVInit) {
+ } else if (tvc->f.states & CVInit) {
continue;
}
|| ((VREFCOUNT(tvc) == 1) &&
(UBCINFOEXISTS(AFSTOV(tvc))))
#endif
- && tvc->opens == 0 && (tvc->states & CUnlinkedDel) == 0) {
+ && tvc->opens == 0 && (tvc->f.states & CUnlinkedDel) == 0) {
#if defined (AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
#ifdef AFS_DARWIN80_ENV
vnode_t tvp = AFSTOV(tvc);
code = EBUSY;
} else
code = 0;
-#else
+#else /* AFS_DARWIN80_ENV */
/*
* vgone() reclaims the vnode, which calls afs_FlushVCache(),
* then it puts the vnode on the free list.
code = 0;
AFS_GLOCK();
#endif
-#else
+#else /* AFS_DARWIN80_ENV || AFS_XBSD_ENV */
code = afs_FlushVCache(tvc, &fv_slept);
-#endif
+#endif /* AFS_DARWIN80_ENV || AFS_XBSD_ENV */
if (code == 0) {
anumber--;
}
if (tq == uq)
break;
}
- }
+ } /* end of if (!freeVCList) */
+
if (!freeVCList) {
- /* none free, making one is better than a panic */
- afs_stats_cmperf.vcacheXAllocs++; /* count in case we have a leak */
- tvc = (struct vcache *)afs_osi_Alloc(sizeof(struct vcache));
-#if defined(AFS_DARWIN_ENV) && !defined(UKERNEL)
- tvc->v = NULL; /* important to clean this, or use memset 0 */
-#endif
-#ifdef KERNEL_HAVE_PIN
- pin((char *)tvc, sizeof(struct vcache)); /* XXX */
-#endif
-#if defined(AFS_SGI_ENV)
- {
- char name[METER_NAMSZ];
- memset(tvc, 0, sizeof(struct vcache));
- tvc->v.v_number = ++afsvnumbers;
- tvc->vc_rwlockid = OSI_NO_LOCKID;
- initnsema(&tvc->vc_rwlock, 1,
- makesname(name, "vrw", tvc->v.v_number));
-#ifndef AFS_SGI53_ENV
- initnsema(&tvc->v.v_sync, 0,
- makesname(name, "vsy", tvc->v.v_number));
-#endif
-#ifndef AFS_SGI62_ENV
- initnlock(&tvc->v.v_lock,
- makesname(name, "vlk", tvc->v.v_number));
-#endif
- }
-#endif /* AFS_SGI_ENV */
+ tvc = afs_AllocVCache();
} else {
tvc = freeVCList; /* take from free list */
freeVCList = tvc->nextfree;
tvc->nextfree = NULL;
- }
+ } /* end of if (!freeVCList) */
+
#endif /* AFS_OSF_ENV */
#if defined(AFS_XBSD_ENV) || defined(AFS_DARWIN_ENV)
#endif
#if !defined(AFS_SGI_ENV) && !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
+
+#if defined(AFS_DISCON_ENV)
+ /* We need to preserve the slot that we're being stored into on
+ * disk */
+ {
+ afs_uint32 slot;
+ slot = tvc->diskSlot;
+ memset((char *)tvc, 0, sizeof(struct vcache));
+ tvc->diskSlot = slot;
+ }
+#else
memset((char *)tvc, 0, sizeof(struct vcache));
+#endif
+
#else
tvc->uncred = 0;
+ memset(&(tvc->f), 0, sizeof(struct fvcache));
#endif
- RWLOCK_INIT(&tvc->lock, "vcache lock");
+ AFS_RWLOCK_INIT(&tvc->lock, "vcache lock");
#if defined(AFS_SUN5_ENV)
- RWLOCK_INIT(&tvc->vlock, "vcache vlock");
+ AFS_RWLOCK_INIT(&tvc->vlock, "vcache vlock");
#endif /* defined(AFS_SUN5_ENV) */
- tvc->parentVnode = 0;
tvc->mvid = NULL;
tvc->linkData = NULL;
tvc->cbExpires = 0;
tvc->opens = 0;
tvc->execsOrWriters = 0;
tvc->flockCount = 0;
- tvc->anyAccess = 0;
- tvc->states = CVInit;
+ tvc->f.states = CVInit;
tvc->last_looker = 0;
- tvc->fid = *afid;
+ tvc->f.fid = *afid;
tvc->asynchrony = -1;
tvc->vc_error = 0;
#ifdef AFS_TEXT_ENV
tvc->flushDV.low = tvc->flushDV.high = AFS_MAXDV;
#endif
hzero(tvc->mapDV);
- tvc->truncPos = AFS_NOTRUNC; /* don't truncate until we need to */
- hzero(tvc->m.DataVersion); /* in case we copy it into flushDV */
+ tvc->f.truncPos = AFS_NOTRUNC; /* don't truncate until we need to */
+ hzero(tvc->f.m.DataVersion); /* in case we copy it into flushDV */
tvc->Access = NULL;
tvc->callback = serverp; /* to minimize chance that clear
* request is lost */
#if defined(AFS_DISCON_ENV)
- tvc->ddirty_next = NULL;
- tvc->ddirty_flags = 0;
+ QZero(&tvc->metadirty);
#endif
i = VCHash(afid);
tvc->vmh = tvc->segid = NULL;
tvc->credp = NULL;
#endif
+
+#if defined(AFS_CACHE_BYPASS)
+ tvc->cachingStates = 0;
+ tvc->cachingTransitions = 0;
+#endif
+
#ifdef AFS_BOZONLOCK_ENV
#if defined(AFS_SUN5_ENV)
rw_init(&tvc->rwlock, "vcache rwlock", RW_DEFAULT, NULL);
osi_dnlc_purgedp(tvc); /* this may be overkill */
memset((char *)&(tvc->callsort), 0, sizeof(struct afs_q));
tvc->slocks = NULL;
- tvc->states &=~ CVInit;
- afs_osi_Wakeup(&tvc->states);
+ tvc->f.states &=~ CVInit;
+ afs_osi_Wakeup(&tvc->f.states);
return tvc;
} /*afs_NewVCache */
-/*
- * afs_FlushActiveVcaches
+/*!
+ * ???
*
- * Description:
- * ???
+ * LOCK: afs_FlushActiveVcaches afs_xvcache N
*
- * Parameters:
- * doflocks : Do we handle flocks?
+ * \param doflocks : Do we handle flocks?
*/
-/* LOCK: afs_FlushActiveVcaches afs_xvcache N */
void
afs_FlushActiveVcaches(register afs_int32 doflocks)
{
register struct vcache *tvc;
register int i;
- register struct conn *tc;
+ register struct afs_conn *tc;
register afs_int32 code;
register struct AFS_UCRED *cred = NULL;
struct vrequest treq, ureq;
ObtainReadLock(&afs_xvcache);
for (i = 0; i < VCSIZE; i++) {
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
- if (tvc->states & CVInit) continue;
+ if (tvc->f.states & CVInit) continue;
#ifdef AFS_DARWIN80_ENV
- if (tvc->states & CDeadVnode &&
- (tvc->states & (CCore|CUnlinkedDel) ||
+ if (tvc->f.states & CDeadVnode &&
+ (tvc->f.states & (CCore|CUnlinkedDel) ||
tvc->flockCount)) panic("Dead vnode has core/unlinkedel/flock");
#endif
if (doflocks && tvc->flockCount != 0) {
afs_InitReq(&treq, afs_osi_credp);
treq.flags |= O_NONBLOCK;
- tc = afs_Conn(&tvc->fid, &treq, SHARED_LOCK);
+ tc = afs_Conn(&tvc->f.fid, &treq, SHARED_LOCK);
if (tc) {
XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_EXTENDLOCK);
RX_AFS_GUNLOCK();
code =
RXAFS_ExtendLock(tc->id,
- (struct AFSFid *)&tvc->fid.Fid,
+ (struct AFSFid *)&tvc->f.fid.Fid,
&tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
} else
code = -1;
} while (afs_Analyze
- (tc, code, &tvc->fid, &treq,
+ (tc, code, &tvc->f.fid, &treq,
AFS_STATS_FS_RPCIDX_EXTENDLOCK, SHARED_LOCK, NULL));
ReleaseWriteLock(&tvc->lock);
#endif
}
didCore = 0;
- if ((tvc->states & CCore) || (tvc->states & CUnlinkedDel)) {
+ if ((tvc->f.states & CCore) || (tvc->f.states & CUnlinkedDel)) {
/*
* Don't let it evaporate in case someone else is in
* this code. Also, drop the afs_xvcache lock while
AFS_RWLOCK((vnode_t *) tvc, VRWLOCK_WRITE);
#endif
ObtainWriteLock(&tvc->lock, 52);
- if (tvc->states & CCore) {
- tvc->states &= ~CCore;
+ if (tvc->f.states & CCore) {
+ tvc->f.states &= ~CCore;
/* XXXX Find better place-holder for cred XXXX */
cred = (struct AFS_UCRED *)tvc->linkData;
tvc->linkData = NULL; /* XXX */
osi_FlushText(tvc);
didCore = 1;
if (code && code != VNOVNODE) {
- afs_StoreWarn(code, tvc->fid.Fid.Volume,
+ afs_StoreWarn(code, tvc->f.fid.Fid.Volume,
/* /dev/console */ 1);
}
- } else if (tvc->states & CUnlinkedDel) {
+ } else if (tvc->f.states & CUnlinkedDel) {
/*
* Ignore errors
*/
-/*
- * afs_VerifyVCache
- *
- * Description:
- * Make sure a cache entry is up-to-date status-wise.
+/*!
+ * Make sure a cache entry is up-to-date status-wise.
*
* NOTE: everywhere that calls this can potentially be sped up
* by checking CStatd first, and avoiding doing the InitReq
* Anymore, the only places that call this KNOW already that the
* vcache is not up-to-date, so we don't screw around.
*
- * Parameters:
- * avc : Ptr to vcache entry to verify.
- * areq : ???
+ * \param avc : Ptr to vcache entry to verify.
+ * \param areq : ???
*/
+/*!
+ *
+ * Make sure a cache entry is up-to-date status-wise.
+ *
+ * NOTE: everywhere that calls this can potentially be sped up
+ * by checking CStatd first, and avoiding doing the InitReq
+ * if this is up-to-date.
+ *
+ * Anymore, the only places that call this KNOW already that the
+ * vcache is not up-to-date, so we don't screw around.
+ *
+ * \param avc Pointer to vcache entry to verify.
+ * \param areq
+ *
+ * \return 0 for success or other error codes.
+ */
int
afs_VerifyVCache2(struct vcache *avc, struct vrequest *areq)
{
/* otherwise we must fetch the status info */
ObtainWriteLock(&avc->lock, 53);
- if (avc->states & CStatd) {
+ if (avc->f.states & CStatd) {
ReleaseWriteLock(&avc->lock);
return 0;
}
ObtainWriteLock(&afs_xcbhash, 461);
- avc->states &= ~(CStatd | CUnique);
+ avc->f.states &= ~(CStatd | CUnique);
avc->callback = NULL;
afs_DequeueCallback(avc);
ReleaseWriteLock(&afs_xcbhash);
* it's possible that the contents of this directory, or this
* file's name have changed, thus invalidating the dnlc contents.
*/
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ if ((avc->f.states & CForeign) || (avc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(avc);
else
osi_dnlc_purgevp(avc);
/* fetch the status info */
- tvc = afs_GetVCache(&avc->fid, areq, NULL, avc);
+ tvc = afs_GetVCache(&avc->f.fid, areq, NULL, avc);
if (!tvc)
return ENOENT;
/* Put it back; caller has already incremented vrefCount */
} /*afs_VerifyVCache */
-/*
- * afs_SimpleVStat
- *
- * Description:
- * Simple copy of stat info into cache.
+/*!
+ * Simple copy of stat info into cache.
*
- * Parameters:
- * avc : Ptr to vcache entry involved.
- * astat : Ptr to stat info to copy.
+ * Callers:as of 1992-04-29, only called by WriteVCache
*
- * Environment:
- * Nothing interesting.
+ * \param avc Ptr to vcache entry involved.
+ * \param astat Ptr to stat info to copy.
*
- * Callers: as of 1992-04-29, only called by WriteVCache
*/
static void
afs_SimpleVStat(register struct vcache *avc,
#if defined(AFS_SGI_ENV)
osi_Assert((valusema(&avc->vc_rwlock) <= 0)
&& (OSI_GET_LOCKID() == avc->vc_rwlockid));
- if (length < avc->m.Length) {
+ if (length < avc->f.m.Length) {
vnode_t *vp = (vnode_t *) avc;
osi_Assert(WriteLocked(&avc->lock));
#endif
/* if writing the file, don't fetch over this value */
afs_Trace3(afs_iclSetp, CM_TRACE_SIMPLEVSTAT, ICL_TYPE_POINTER, avc,
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->m.Length),
+ ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->f.m.Length),
ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(length));
- avc->m.Length = length;
- avc->m.Date = astat->ClientModTime;
+ avc->f.m.Length = length;
+ avc->f.m.Date = astat->ClientModTime;
}
- avc->m.Owner = astat->Owner;
- avc->m.Group = astat->Group;
- avc->m.Mode = astat->UnixModeBits;
+ avc->f.m.Owner = astat->Owner;
+ avc->f.m.Group = astat->Group;
+ avc->f.m.Mode = astat->UnixModeBits;
if (vType(avc) == VREG) {
- avc->m.Mode |= S_IFREG;
+ avc->f.m.Mode |= S_IFREG;
} else if (vType(avc) == VDIR) {
- avc->m.Mode |= S_IFDIR;
+ avc->f.m.Mode |= S_IFDIR;
} else if (vType(avc) == VLNK) {
- avc->m.Mode |= S_IFLNK;
- if ((avc->m.Mode & 0111) == 0)
+ avc->f.m.Mode |= S_IFLNK;
+ if ((avc->f.m.Mode & 0111) == 0)
avc->mvstat = 1;
}
- if (avc->states & CForeign) {
+ if (avc->f.states & CForeign) {
struct axscache *ac;
- avc->anyAccess = astat->AnonymousAccess;
+ avc->f.anyAccess = astat->AnonymousAccess;
#ifdef badidea
if ((astat->CallerAccess & ~astat->AnonymousAccess))
/* USED TO SAY :
afs_AddAxs(avc->Access, areq->uid, astat->CallerAccess);
}
-
} /*afs_SimpleVStat */
-/*
- * afs_WriteVCache
+/*!
+ * Store the status info *only* back to the server for a
+ * fid/vrequest.
*
- * Description:
- * Store the status info *only* back to the server for a
- * fid/vrequest.
+ * Environment: Must be called with a shared lock held on the vnode.
*
- * Parameters:
- * avc : Ptr to the vcache entry.
- * astatus : Ptr to the status info to store.
- * areq : Ptr to the associated vrequest.
+ * \param avc Ptr to the vcache entry.
+ * \param astatus Ptr to the status info to store.
+ * \param areq Ptr to the associated vrequest.
*
- * Environment:
- * Must be called with a shared lock held on the vnode.
+ * \return Operation status.
*/
int
struct vrequest *areq)
{
afs_int32 code;
- struct conn *tc;
+ struct afs_conn *tc;
struct AFSFetchStatus OutStatus;
struct AFSVolSync tsync;
XSTATS_DECLS;
AFS_STATCNT(afs_WriteVCache);
afs_Trace2(afs_iclSetp, CM_TRACE_WVCACHE, ICL_TYPE_POINTER, avc,
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->m.Length));
+ ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->f.m.Length));
do {
- tc = afs_Conn(&avc->fid, areq, SHARED_LOCK);
+ tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
if (tc) {
XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STORESTATUS);
RX_AFS_GUNLOCK();
code =
- RXAFS_StoreStatus(tc->id, (struct AFSFid *)&avc->fid.Fid,
+ RXAFS_StoreStatus(tc->id, (struct AFSFid *)&avc->f.fid.Fid,
astatus, &OutStatus, &tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
} else
code = -1;
} while (afs_Analyze
- (tc, code, &avc->fid, areq, AFS_STATS_FS_RPCIDX_STORESTATUS,
+ (tc, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STORESTATUS,
SHARED_LOCK, NULL));
UpgradeSToWLock(&avc->lock, 20);
* it thought we were doing this after fetching new status
* over a file being written.
*/
- avc->m.Date = OutStatus.ClientModTime;
+ avc->f.m.Date = OutStatus.ClientModTime;
} else {
/* failure, set up to check with server next time */
ObtainWriteLock(&afs_xcbhash, 462);
afs_DequeueCallback(avc);
- avc->states &= ~(CStatd | CUnique); /* turn off stat valid flag */
+ avc->f.states &= ~(CStatd | CUnique); /* turn off stat valid flag */
ReleaseWriteLock(&afs_xcbhash);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ if ((avc->f.states & CForeign) || (avc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(avc); /* if it (could be) a directory */
}
ConvertWToSLock(&avc->lock);
/* Set attributes. */
if (astatus->Mask & AFS_SETMODTIME) {
- avc->m.Date = astatus->ClientModTime;
+ avc->f.m.Date = astatus->ClientModTime;
flags |= VDisconSetTime;
}
if (astatus->Mask & AFS_SETOWNER) {
printf("Not allowed yet. \n");
- //avc->m.Owner = astatus->Owner;
+ //avc->f.m.Owner = astatus->Owner;
}
if (astatus->Mask & AFS_SETGROUP) {
printf("Not allowed yet. \n");
- //avc->m.Group = astatus->Group;
+ //avc->f.m.Group = astatus->Group;
}
if (astatus->Mask & AFS_SETMODE) {
- avc->m.Mode = astatus->UnixModeBits;
+ avc->f.m.Mode = astatus->UnixModeBits;
#if 0 /* XXX: Leaving this out, so it doesn't mess up the file type flag.*/
if (vType(avc) == VREG) {
- avc->m.Mode |= S_IFREG;
+ avc->f.m.Mode |= S_IFREG;
} else if (vType(avc) == VDIR) {
- avc->m.Mode |= S_IFDIR;
+ avc->f.m.Mode |= S_IFDIR;
} else if (vType(avc) == VLNK) {
- avc->m.Mode |= S_IFLNK;
- if ((avc->m.Mode & 0111) == 0)
+ avc->f.m.Mode |= S_IFLNK;
+ if ((avc->f.m.Mode & 0111) == 0)
avc->mvstat = 1;
}
#endif
flags |= VDisconTrunc;
}
- ObtainWriteLock(&afs_DDirtyVCListLock, 701);
-
- if (flags) {
- /* Add to disconnected dirty list and set dirty flag.*/
- if (!avc->ddirty_flags ||
- (avc->ddirty_flags == VDisconShadowed)) {
- /* Not in dirty list. */
- AFS_DISCON_ADD_DIRTY(avc);
- }
-
- avc->ddirty_flags |= flags;
- }
-
- ReleaseWriteLock(&afs_DDirtyVCListLock);
+ if (flags)
+ afs_DisconAddDirty(avc, flags, 1);
/* XXX: How about the rest of the fields? */
#endif
-/*
- * afs_ProcessFS
+/*!
+ * Copy astat block into vcache info
*
- * Description:
- * Copy astat block into vcache info
+ * \note This code may get dataversion and length out of sync if the file has
+ * been modified. This is less than ideal. I haven't thought about it sufficiently
+ * to be certain that it is adequate.
*
- * Parameters:
- * avc : Ptr to vcache entry.
- * astat : Ptr to stat block to copy in.
- * areq : Ptr to associated request.
- *
- * Environment:
- * Must be called under a write lock
+ * \note Environment: Must be called under a write lock
*
- * Note: this code may get dataversion and length out of sync if the file has
- * been modified. This is less than ideal. I haven't thought about
- * it sufficiently to be certain that it is adequate.
+ * \param avc Ptr to vcache entry.
+ * \param astat Ptr to stat block to copy in.
+ * \param areq Ptr to associated request.
*/
void
afs_ProcessFS(register struct vcache *avc,
* values.
*/
afs_Trace3(afs_iclSetp, CM_TRACE_PROCESSFS, ICL_TYPE_POINTER, avc,
- ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->m.Length),
+ ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(avc->f.m.Length),
ICL_TYPE_OFFSET, ICL_HANDLE_OFFSET(length));
- avc->m.Length = length;
- avc->m.Date = astat->ClientModTime;
- }
- hset64(avc->m.DataVersion, astat->dataVersionHigh, astat->DataVersion);
- avc->m.Owner = astat->Owner;
- avc->m.Mode = astat->UnixModeBits;
- avc->m.Group = astat->Group;
- avc->m.LinkCount = astat->LinkCount;
+ avc->f.m.Length = length;
+ avc->f.m.Date = astat->ClientModTime;
+ }
+ hset64(avc->f.m.DataVersion, astat->dataVersionHigh, astat->DataVersion);
+ avc->f.m.Owner = astat->Owner;
+ avc->f.m.Mode = astat->UnixModeBits;
+ avc->f.m.Group = astat->Group;
+ avc->f.m.LinkCount = astat->LinkCount;
if (astat->FileType == File) {
vSetType(avc, VREG);
- avc->m.Mode |= S_IFREG;
+ avc->f.m.Mode |= S_IFREG;
} else if (astat->FileType == Directory) {
vSetType(avc, VDIR);
- avc->m.Mode |= S_IFDIR;
+ avc->f.m.Mode |= S_IFDIR;
} else if (astat->FileType == SymbolicLink) {
- if (afs_fakestat_enable && (avc->m.Mode & 0111) == 0) {
+ if (afs_fakestat_enable && (avc->f.m.Mode & 0111) == 0) {
vSetType(avc, VDIR);
- avc->m.Mode |= S_IFDIR;
+ avc->f.m.Mode |= S_IFDIR;
} else {
vSetType(avc, VLNK);
- avc->m.Mode |= S_IFLNK;
+ avc->f.m.Mode |= S_IFLNK;
}
- if ((avc->m.Mode & 0111) == 0) {
+ if ((avc->f.m.Mode & 0111) == 0) {
avc->mvstat = 1;
}
}
- avc->anyAccess = astat->AnonymousAccess;
+ avc->f.anyAccess = astat->AnonymousAccess;
#ifdef badidea
if ((astat->CallerAccess & ~astat->AnonymousAccess))
/* USED TO SAY :
} /*afs_ProcessFS */
+/*!
+ * Get fid from server.
+ *
+ * \param afid
+ * \param areq Request to be passed on.
+ * \param name Name of ?? to lookup.
+ * \param OutStatus Fetch status.
+ * \param CallBackp
+ * \param serverp
+ * \param tsyncp
+ *
+ * \return Success status of operation.
+ */
int
afs_RemoteLookup(register struct VenusFid *afid, struct vrequest *areq,
char *name, struct VenusFid *nfid,
{
afs_int32 code;
afs_uint32 start;
- register struct conn *tc;
+ register struct afs_conn *tc;
struct AFSFetchStatus OutDirStatus;
XSTATS_DECLS;
if (!name)
}
-/*
+/*!
* afs_GetVCache
*
- * Description:
- * Given a file id and a vrequest structure, fetch the status
- * information associated with the file.
+ * Given a file id and a vrequest structure, fetch the status
+ * information associated with the file.
*
- * Parameters:
- * afid : File ID.
- * areq : Ptr to associated vrequest structure, specifying the
- * user whose authentication tokens will be used.
- * avc : caller may already have a vcache for this file, which is
- * already held.
+ * \param afid File ID.
+ * \param areq Ptr to associated vrequest structure, specifying the
+ * user whose authentication tokens will be used.
+ * \param avc Caller may already have a vcache for this file, which is
+ * already held.
*
- * Environment:
+ * \note Environment:
* The cache entry is returned with an increased vrefCount field.
* The entry must be discarded by calling afs_PutVCache when you
* are through using the pointer to the cache entry.
* of a parent dir cache entry, given a file (to check its access
* control list). It also allows renames to be handled easily by
* locking directories in a constant order.
- * NB. NewVCache -> FlushVCache presently (4/10/95) drops the xvcache lock.
+ *
+ * \note NB. NewVCache -> FlushVCache presently (4/10/95) drops the xvcache lock.
+ *
+ * \note Might have a vcache structure already, which must
+ * already be held by the caller
*/
- /* might have a vcache structure already, which must
- * already be held by the caller */
-
struct vcache *
afs_GetVCache(register struct VenusFid *afid, struct vrequest *areq,
afs_int32 * cached, struct vcache *avc)
if (tvc) {
if (cached)
*cached = 1;
- osi_Assert((tvc->states & CVInit) == 0);
+ osi_Assert((tvc->f.states & CVInit) == 0);
/* If we are in readdir, return the vnode even if not statd */
- if ((tvc->states & CStatd) || afs_InReadDir(tvc)) {
+ if ((tvc->f.states & CStatd) || afs_InReadDir(tvc)) {
ReleaseSharedLock(&afs_xvcache);
return tvc;
}
newvcache = 1;
ConvertWToSLock(&afs_xvcache);
- if (!tvc)
+ if (tvc == NULL)
{
ReleaseSharedLock(&afs_xvcache);
return NULL;
ObtainWriteLock(&tvc->lock, 54);
- if (tvc->states & CStatd) {
+ if (tvc->f.states & CStatd) {
ReleaseWriteLock(&tvc->lock);
return tvc;
}
#endif
ObtainWriteLock(&afs_xcbhash, 464);
- tvc->states &= ~CUnique;
+ tvc->f.states &= ~CUnique;
tvc->callback = 0;
afs_DequeueCallback(tvc);
ReleaseWriteLock(&afs_xcbhash);
if (tvp) {
if ((tvp->states & VForeign)) {
if (newvcache)
- tvc->states |= CForeign;
+ tvc->f.states |= CForeign;
if (newvcache && (tvp->rootVnode == afid->Fid.Vnode)
&& (tvp->rootUnique == afid->Fid.Unique)) {
tvc->mvstat = 2;
}
}
if (tvp->states & VRO)
- tvc->states |= CRO;
+ tvc->f.states |= CRO;
if (tvp->states & VBackup)
- tvc->states |= CBackup;
+ tvc->f.states |= CBackup;
/* now copy ".." entry back out of volume structure, if necessary */
if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
if (!tvc->mvid)
if (afs_DynrootNewVnode(tvc, &OutStatus)) {
afs_ProcessFS(tvc, &OutStatus, areq);
- tvc->states |= CStatd | CUnique;
- tvc->parentVnode = OutStatus.ParentVnode;
- tvc->parentUnique = OutStatus.ParentUnique;
+ tvc->f.states |= CStatd | CUnique;
+ tvc->f.parent.vnode = OutStatus.ParentVnode;
+ tvc->f.parent.unique = OutStatus.ParentUnique;
code = 0;
} else {
if (AFS_IS_DISCONNECTED) {
- if (AFS_IS_DISCON_RW) {
- /* Seek the vnode manually. */
- ObtainSharedLock(&afs_xvcache, 738);
- avc = afs_FindVCache(afid, NULL, 1);
- ReleaseSharedLock(&afs_xvcache);
-
- if (vType(avc) == VDIR)
- OutStatus.FileType = Directory;
-
- code = tvc?0:ENOENT;
- } else {
- /* Nothing to do otherwise...*/
- code = ENETDOWN;
- printf("Network is down in afs_GetCache");
- }
+ /* Nothing to do otherwise...*/
+ code = ENETDOWN;
+ printf("Network is down in afs_GetCache");
} else
code = afs_FetchStatus(tvc, afid, areq, &OutStatus);
* its parent.
*/
if (!code && OutStatus.FileType != Directory &&
- !tvc->parentVnode) {
- tvc->parentVnode = OutStatus.ParentVnode;
- tvc->parentUnique = OutStatus.ParentUnique;
+ !tvc->f.parent.vnode) {
+ tvc->f.parent.vnode = OutStatus.ParentVnode;
+ tvc->f.parent.unique = OutStatus.ParentUnique;
+ /* XXX - SXW - It's conceivable we should mark ourselves
+ * as dirty again here, incase we've been raced
+ * out of the FetchStatus call.
+ */
}
}
}
+/*!
+ * Lookup a vcache by fid. Look inside the cache first, if not
+ * there, lookup the file on the server, and then get it's fresh
+ * cache entry.
+ *
+ * \param afid
+ * \param areq
+ * \param cached Is element cached? If NULL, don't answer.
+ * \param adp
+ * \param aname
+ *
+ * \return The found element or NULL.
+ */
struct vcache *
afs_LookupVCache(struct VenusFid *afid, struct vrequest *areq,
afs_int32 * cached, struct vcache *adp, char *aname)
}
ObtainReadLock(&tvc->lock);
- if (tvc->states & CStatd) {
+ if (tvc->f.states & CStatd) {
if (cached) {
*cached = 1;
}
ReleaseReadLock(&tvc->lock);
return tvc;
}
- tvc->states &= ~CUnique;
+ tvc->f.states &= ~CUnique;
ReleaseReadLock(&tvc->lock);
afs_PutVCache(tvc);
code = ENETDOWN;
} else
code =
- afs_RemoteLookup(&adp->fid, areq, aname, &nfid, &OutStatus,
+ afs_RemoteLookup(&adp->f.fid, areq, aname, &nfid, &OutStatus,
&CallBack, &serverp, &tsync);
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
if (tvp) {
if ((tvp->states & VForeign)) {
if (newvcache)
- tvc->states |= CForeign;
+ tvc->f.states |= CForeign;
if (newvcache && (tvp->rootVnode == afid->Fid.Vnode)
&& (tvp->rootUnique == afid->Fid.Unique))
tvc->mvstat = 2;
}
if (tvp->states & VRO)
- tvc->states |= CRO;
+ tvc->f.states |= CRO;
if (tvp->states & VBackup)
- tvc->states |= CBackup;
+ tvc->f.states |= CBackup;
/* now copy ".." entry back out of volume structure, if necessary */
if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
if (!tvc->mvid)
if (code) {
ObtainWriteLock(&afs_xcbhash, 465);
afs_DequeueCallback(tvc);
- tvc->states &= ~(CStatd | CUnique);
+ tvc->f.states &= ~(CStatd | CUnique);
ReleaseWriteLock(&afs_xcbhash);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->f.states & CForeign) || (tvc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
if (tvp)
afs_PutVolume(tvp, READ_LOCK);
if (CallBack.ExpirationTime) {
tvc->callback = serverp;
tvc->cbExpires = CallBack.ExpirationTime + now;
- tvc->states |= CStatd | CUnique;
- tvc->states &= ~CBulkFetching;
+ tvc->f.states |= CStatd | CUnique;
+ tvc->f.states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(CallBack.ExpirationTime), tvp);
- } else if (tvc->states & CRO) {
+ } else if (tvc->f.states & CRO) {
/* adapt gives us an hour. */
tvc->cbExpires = 3600 + osi_Time();
- /*XXX*/ tvc->states |= CStatd | CUnique;
- tvc->states &= ~CBulkFetching;
+ /*XXX*/ tvc->f.states |= CStatd | CUnique;
+ tvc->f.states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(3600), tvp);
} else {
tvc->callback = NULL;
afs_DequeueCallback(tvc);
- tvc->states &= ~(CStatd | CUnique);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ tvc->f.states &= ~(CStatd | CUnique);
+ if ((tvc->f.states & CForeign) || (tvc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
}
} else {
afs_DequeueCallback(tvc);
- tvc->states &= ~CStatd;
- tvc->states &= ~CUnique;
+ tvc->f.states &= ~CStatd;
+ tvc->f.states &= ~CUnique;
tvc->callback = NULL;
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->f.states & CForeign) || (tvc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
ObtainSharedLock(&afs_xvcache, 7);
i = VCHash(afid);
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
- if (!FidCmp(&(tvc->fid), afid)) {
- if (tvc->states & CVInit) {
+ if (!FidCmp(&(tvc->f.fid), afid)) {
+ if (tvc->f.states & CVInit) {
ReleaseSharedLock(&afs_xvcache);
- afs_osi_Sleep(&tvc->states);
+ afs_osi_Sleep(&tvc->f.states);
goto rootvc_loop;
}
#ifdef AFS_OSF_ENV
continue;
#endif /* AFS_OSF_ENV */
#ifdef AFS_DARWIN80_ENV
- if (tvc->states & CDeadVnode) {
+ if (tvc->f.states & CDeadVnode) {
ReleaseSharedLock(&afs_xvcache);
- afs_osi_Sleep(&tvc->states);
+ afs_osi_Sleep(&tvc->f.states);
goto rootvc_loop;
}
tvp = AFSTOV(tvc);
}
}
- if (!haveStatus && (!tvc || !(tvc->states & CStatd))) {
+ if (!haveStatus && (!tvc || !(tvc->f.states & CStatd))) {
/* Mount point no longer stat'd or unknown. FID may have changed. */
#ifdef AFS_OSF_ENV
if (tvc)
ReleaseWriteLock(&afs_xvcache);
- if (tvc->states & CStatd) {
+ if (tvc->f.states & CStatd) {
return tvc;
} else {
ObtainReadLock(&tvc->lock);
- tvc->states &= ~CUnique;
+ tvc->f.states &= ~CUnique;
tvc->callback = NULL; /* redundant, perhaps */
ReleaseReadLock(&tvc->lock);
}
afs_FreeAllAxs(&(tvc->Access));
if (newvcache)
- tvc->states |= CForeign;
+ tvc->f.states |= CForeign;
if (tvolp->states & VRO)
- tvc->states |= CRO;
+ tvc->f.states |= CRO;
if (tvolp->states & VBackup)
- tvc->states |= CBackup;
+ tvc->f.states |= CBackup;
/* now copy ".." entry back out of volume structure, if necessary */
if (newvcache && (tvolp->rootVnode == afid->Fid.Vnode)
&& (tvolp->rootUnique == afid->Fid.Unique)) {
ObtainWriteLock(&afs_xcbhash, 467);
afs_DequeueCallback(tvc);
tvc->callback = NULL;
- tvc->states &= ~(CStatd | CUnique);
+ tvc->f.states &= ~(CStatd | CUnique);
ReleaseWriteLock(&afs_xcbhash);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->f.states & CForeign) || (tvc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
ReleaseWriteLock(&tvc->lock);
afs_PutVCache(tvc);
ObtainWriteLock(&afs_xcbhash, 468);
if (origCBs == afs_allCBs) {
- tvc->states |= CTruth;
+ tvc->f.states |= CTruth;
tvc->callback = serverp;
if (CallBack.ExpirationTime != 0) {
tvc->cbExpires = CallBack.ExpirationTime + start;
- tvc->states |= CStatd;
- tvc->states &= ~CBulkFetching;
+ tvc->f.states |= CStatd;
+ tvc->f.states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(CallBack.ExpirationTime), tvolp);
- } else if (tvc->states & CRO) {
+ } else if (tvc->f.states & CRO) {
/* adapt gives us an hour. */
tvc->cbExpires = 3600 + osi_Time();
- /*XXX*/ tvc->states |= CStatd;
- tvc->states &= ~CBulkFetching;
+ /*XXX*/ tvc->f.states |= CStatd;
+ tvc->f.states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(3600), tvolp);
}
} else {
afs_DequeueCallback(tvc);
tvc->callback = NULL;
- tvc->states &= ~(CStatd | CUnique);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ tvc->f.states &= ~(CStatd | CUnique);
+ if ((tvc->f.states & CForeign) || (tvc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
volp = afs_GetVolume(afid, areq, READ_LOCK);
ObtainWriteLock(&afs_xcbhash, 469);
- avc->states |= CTruth;
+ avc->f.states |= CTruth;
if (avc->callback /* check for race */ ) {
if (acb->ExpirationTime != 0) {
avc->cbExpires = acb->ExpirationTime + start;
- avc->states |= CStatd;
- avc->states &= ~CBulkFetching;
+ avc->f.states |= CStatd;
+ avc->f.states &= ~CBulkFetching;
afs_QueueCallback(avc, CBHash(acb->ExpirationTime), volp);
- } else if (avc->states & CRO) {
+ } else if (avc->f.states & CRO) {
/* ordinary callback on a read-only volume -- AFS 3.2 style */
avc->cbExpires = 3600 + start;
- avc->states |= CStatd;
- avc->states &= ~CBulkFetching;
+ avc->f.states |= CStatd;
+ avc->f.states &= ~CBulkFetching;
afs_QueueCallback(avc, CBHash(3600), volp);
} else {
afs_DequeueCallback(avc);
avc->callback = NULL;
- avc->states &= ~(CStatd | CUnique);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ avc->f.states &= ~(CStatd | CUnique);
+ if ((avc->f.states & CForeign) || (avc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(avc); /* if it (could be) a directory */
}
} else {
afs_DequeueCallback(avc);
avc->callback = NULL;
- avc->states &= ~(CStatd | CUnique);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ avc->f.states &= ~(CStatd | CUnique);
+ if ((avc->f.states & CForeign) || (avc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(avc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
if (volp)
afs_PutVolume(volp, READ_LOCK);
-
}
-/*
- * must be called with avc write-locked
+/*!
+ * Must be called with avc write-locked
* don't absolutely have to invalidate the hint unless the dv has
* changed, but be sure to get it right else there will be consistency bugs.
*/
{
int code;
afs_uint32 start = 0;
- register struct conn *tc;
+ register struct afs_conn *tc;
struct AFSCallBack CallBack;
struct AFSVolSync tsync;
XSTATS_DECLS;
void
afs_StuffVcache(register struct VenusFid *afid,
struct AFSFetchStatus *OutStatus,
- struct AFSCallBack *CallBack, register struct conn *tc,
+ struct AFSCallBack *CallBack, register struct afs_conn *tc,
struct vrequest *areq)
{
register afs_int32 code, i, newvcache = 0;
ReleaseSharedLock(&afs_xvcache);
ObtainWriteLock(&tvc->lock, 58);
- tvc->states &= ~CStatd;
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ tvc->f.states &= ~CStatd;
+ if ((tvc->f.states & CForeign) || (tvc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
/* Is it always appropriate to throw away all the access rights? */
tvp = afs_GetVolume(afid, areq, READ_LOCK);
if (tvp) {
if (newvcache && (tvp->states & VForeign))
- tvc->states |= CForeign;
+ tvc->f.states |= CForeign;
if (tvp->states & VRO)
- tvc->states |= CRO;
+ tvc->f.states |= CRO;
if (tvp->states & VBackup)
- tvc->states |= CBackup;
+ tvc->f.states |= CBackup;
/*
* Now, copy ".." entry back out of volume structure, if
* necessary
ObtainWriteLock(&afs_xcbhash, 470);
if (CallBack->ExpirationTime != 0) {
tvc->cbExpires = CallBack->ExpirationTime + osi_Time() - 1;
- tvc->states |= CStatd;
- tvc->states &= ~CBulkFetching;
+ tvc->f.states |= CStatd;
+ tvc->f.states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(CallBack->ExpirationTime), tvp);
- } else if (tvc->states & CRO) {
+ } else if (tvc->f.states & CRO) {
/* old-fashioned AFS 3.2 style */
tvc->cbExpires = 3600 + osi_Time();
- /*XXX*/ tvc->states |= CStatd;
- tvc->states &= ~CBulkFetching;
+ /*XXX*/ tvc->f.states |= CStatd;
+ tvc->f.states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(3600), tvp);
} else {
afs_DequeueCallback(tvc);
tvc->callback = NULL;
- tvc->states &= ~(CStatd | CUnique);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ tvc->f.states &= ~(CStatd | CUnique);
+ if ((tvc->f.states & CForeign) || (tvc->f.fid.Fid.Vnode & 1))
osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
} /*afs_StuffVcache */
#endif
-/*
- * afs_PutVCache
- *
- * Description:
- * Decrements the reference count on a cache entry.
+/*!
+ * Decrements the reference count on a cache entry.
*
- * Parameters:
- * avc : Pointer to the cache entry to decrement.
+ * \param avc Pointer to the cache entry to decrement.
*
- * Environment:
- * Nothing interesting.
+ * \note Environment: Nothing interesting.
*/
void
afs_PutVCache(register struct vcache *avc)
} /*afs_PutVCache */
+/*!
+ * Reset a vcache entry, so local contents are ignored, and the
+ * server will be reconsulted next time the vcache is used
+ *
+ * \param avc Pointer to the cache entry to reset
+ * \param acred
+ *
+ * \note avc must be write locked on entry
+ */
+void
+afs_ResetVCache(struct vcache *avc, struct AFS_UCRED *acred) {
+ ObtainWriteLock(&afs_xcbhash, 456);
+ afs_DequeueCallback(avc);
+ avc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat */
+ ReleaseWriteLock(&afs_xcbhash);
+ /* now find the disk cache entries */
+ afs_TryToSmush(avc, acred, 1);
+ osi_dnlc_purgedp(avc);
+ if (avc->linkData && !(avc->f.states & CCore)) {
+ afs_osi_Free(avc->linkData, strlen(avc->linkData) + 1);
+ avc->linkData = NULL;
+ }
+}
+
+/*!
+ * Sleepa when searching for a vcache. Releases all the pending locks,
+ * sleeps then obtains the previously released locks.
+ *
+ * \param vcache Enter sleep state.
+ * \param flag Determines what locks to use.
+ *
+ * \return
+ */
static void findvc_sleep(struct vcache *avc, int flag) {
if (flag & IS_SLOCK) {
ReleaseSharedLock(&afs_xvcache);
ReleaseReadLock(&afs_xvcache);
}
}
- afs_osi_Sleep(&avc->states);
+ afs_osi_Sleep(&avc->f.states);
if (flag & IS_SLOCK) {
ObtainSharedLock(&afs_xvcache, 341);
} else {
}
}
}
-/*
- * afs_FindVCache
+/*!
+ * Find a vcache entry given a fid.
*
- * Description:
- * Find a vcache entry given a fid.
+ * \param afid Pointer to the fid whose cache entry we desire.
+ * \param retry (SGI-specific) tell the caller to drop the lock on xvcache,
+ * unlock the vnode, and try again.
+ * \param flag Bit 1 to specify whether to compute hit statistics. Not
+ * set if FindVCache is called as part of internal bookkeeping.
*
- * Parameters:
- * afid : Pointer to the fid whose cache entry we desire.
- * retry: (SGI-specific) tell the caller to drop the lock on xvcache,
- * unlock the vnode, and try again.
- * flags: bit 1 to specify whether to compute hit statistics. Not
- * set if FindVCache is called as part of internal bookkeeping.
- *
- * Environment:
- * Must be called with the afs_xvcache lock at least held at
- * the read level. In order to do the VLRU adjustment, the xvcache lock
- * must be shared-- we upgrade it here.
+ * \note Environment: Must be called with the afs_xvcache lock at least held at
+ * the read level. In order to do the VLRU adjustment, the xvcache lock
+ * must be shared-- we upgrade it here.
*/
struct vcache *
i = VCHash(afid);
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if (FidMatches(afid, tvc)) {
- if (tvc->states & CVInit) {
+ if (tvc->f.states & CVInit) {
findvc_sleep(tvc, flag);
goto findloop;
}
continue;
#endif /* AFS_OSF_ENV */
#ifdef AFS_DARWIN80_ENV
- if (tvc->states & CDeadVnode) {
+ if (tvc->f.states & CDeadVnode) {
findvc_sleep(tvc, flag);
goto findloop;
}
return 0;
#endif
#if defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
- tvc->states |= CUBCinit;
+ tvc->f.states |= CUBCinit;
AFS_GUNLOCK();
if (UBCINFOMISSING(AFSTOV(tvc)) ||
UBCINFORECLAIMED(AFSTOV(tvc))) {
ubc_info_init(AFSTOV(tvc));
}
AFS_GLOCK();
- tvc->states &= ~CUBCinit;
+ tvc->f.states &= ~CUBCinit;
#endif
/*
* only move to front of vlru if we have proper vcache locking)
return tvc;
} /*afs_FindVCache */
-/*
- * afs_NFSFindVCache
- *
- * Description:
- * Find a vcache entry given a fid. Does a wildcard match on what we
- * have for the fid. If more than one entry, don't return anything.
+/*!
+ * Find a vcache entry given a fid. Does a wildcard match on what we
+ * have for the fid. If more than one entry, don't return anything.
*
- * Parameters:
- * avcp : Fill in pointer if we found one and only one.
- * afid : Pointer to the fid whose cache entry we desire.
- * retry: (SGI-specific) tell the caller to drop the lock on xvcache,
+ * \param avcp Fill in pointer if we found one and only one.
+ * \param afid Pointer to the fid whose cache entry we desire.
+ * \param retry (SGI-specific) tell the caller to drop the lock on xvcache,
* unlock the vnode, and try again.
- * flags: bit 1 to specify whether to compute hit statistics. Not
+ * \param flags bit 1 to specify whether to compute hit statistics. Not
* set if FindVCache is called as part of internal bookkeeping.
*
- * Environment:
- * Must be called with the afs_xvcache lock at least held at
- * the read level. In order to do the VLRU adjustment, the xvcache lock
- * must be shared-- we upgrade it here.
+ * \note Environment: Must be called with the afs_xvcache lock at least held at
+ * the read level. In order to do the VLRU adjustment, the xvcache lock
+ * must be shared-- we upgrade it here.
*
- * Return value:
- * number of matches found.
+ * \return Number of matches found.
*/
int afs_duplicate_nfs_fids = 0;
i = VCHash(afid);
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
/* Match only on what we have.... */
- if (((tvc->fid.Fid.Vnode & 0xffff) == afid->Fid.Vnode)
- && (tvc->fid.Fid.Volume == afid->Fid.Volume)
- && ((tvc->fid.Fid.Unique & 0xffffff) == afid->Fid.Unique)
- && (tvc->fid.Cell == afid->Cell)) {
- if (tvc->states & CVInit) {
+ if (((tvc->f.fid.Fid.Vnode & 0xffff) == afid->Fid.Vnode)
+ && (tvc->f.fid.Fid.Volume == afid->Fid.Volume)
+ && ((tvc->f.fid.Fid.Unique & 0xffffff) == afid->Fid.Unique)
+ && (tvc->f.fid.Cell == afid->Cell)) {
+ if (tvc->f.states & CVInit) {
ReleaseSharedLock(&afs_xvcache);
- afs_osi_Sleep(&tvc->states);
+ afs_osi_Sleep(&tvc->f.states);
goto loop;
}
#ifdef AFS_OSF_ENV
}
#endif /* AFS_OSF_ENV */
#ifdef AFS_DARWIN80_ENV
- if (tvc->states & CDeadVnode) {
+ if (tvc->f.states & CDeadVnode) {
ReleaseSharedLock(&afs_xvcache);
- afs_osi_Sleep(&tvc->states);
+ afs_osi_Sleep(&tvc->f.states);
goto loop;
}
tvp = AFSTOV(tvc);
-/*
- * afs_vcacheInit
- *
+/*!
* Initialize vcache related variables
+ *
+ * \param astatSize
*/
void
afs_vcacheInit(int astatSize)
{
+#if (!defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)) || defined(AFS_SGI_ENV)
register struct vcache *tvp;
+#endif
int i;
#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
if (!afs_maxvcount) {
freeVCList = NULL;
#endif
- RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
+ AFS_RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
LOCK_INIT(&afs_xvcb, "afs_xvcb");
#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
QInit(&afs_vhashTV[i]);
}
-/*
- * shutdown_vcache
- *
+/*!
+ * Shutdown vcache.
*/
void
shutdown_vcache(void)
*/
{
- register struct afs_q *tq, *uq;
+ register struct afs_q *tq, *uq = NULL;
register struct vcache *tvc;
for (tq = VLRU.prev; tq != &VLRU; tq = uq) {
tvc = QTOV(tq);
tvc->linkData = 0;
}
- afs_FreeAllAxs(&(tvc->Access));
+ if (tvc->Access)
+ afs_FreeAllAxs(&(tvc->Access));
}
afs_vhashT[i] = 0;
}
#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
freeVCList = Initial_freeVCList = 0;
#endif
- RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
+ AFS_RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
LOCK_INIT(&afs_xvcb, "afs_xvcb");
QInit(&VLRU);
for(i = 0; i < VCSIZE; ++i)
QInit(&afs_vhashTV[i]);
}
-#ifdef AFS_DISCON_ENV
void afs_DisconGiveUpCallbacks() {
int i;
struct vcache *tvc;
/* Somehow, walk the set of vcaches, with each one coming out as tvc */
for (i = 0; i < VCSIZE; i++) {
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
- if ((tvc->states & CRO) == 0 && tvc->callback) {
- /* XXX - should we check if the callback has expired here? */
+ if ((tvc->f.states & CRO) == 0 && tvc->callback) {
afs_QueueVCB(tvc);
tvc->callback = NULL;
- tvc->states &- ~(CStatd | CUnique);
nq++;
}
}
/*printf("gone\n");*/
}
-#endif
+/*!
+ *
+ * Clear the Statd flag from all vcaches
+ *
+ * This function removes the Statd flag from all vcaches. It's used by
+ * disconnected mode to tidy up during reconnection
+ *
+ */
+void afs_ClearAllStatdFlag() {
+ int i;
+ struct vcache *tvc;
+
+ ObtainWriteLock(&afs_xvcache, 715);
+
+ for (i = 0; i < VCSIZE; i++) {
+ for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
+ tvc->f.states &= ~(CStatd|CUnique);
+ }
+ }
+ ReleaseWriteLock(&afs_xvcache);
+}
git://git.openafs.org / openafs.git / blobdiff