/*
* 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
#ifdef AFS_SGI64_ENV
char *makesname();
#endif /* AFS_SGI64_ENV */
-
+
/* Exported variables */
afs_rwlock_t afs_xvcache; /*Lock: alloc new stat cache entries*/
afs_lock_t afs_xvcb; /*Lock: fids on which there are callbacks*/
* afs_xvcache lock must be held for writing upon entry to
* prevent people from changing the vrefCount field, and to
* protect the lruq and hnext fields.
- * LOCK: afs_FlushVCache afs_xvcache W
+ * 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
*/
if (avc->mvid) osi_FreeSmallSpace(avc->mvid);
avc->mvid = (struct VenusFid*)0;
if (avc->linkData) {
- afs_osi_Free(avc->linkData, strlen(avc->linkData)+1);
- avc->linkData = NULL;
+ afs_osi_Free(avc->linkData, strlen(avc->linkData)+1);
+ avc->linkData = NULL;
}
+#if defined(AFS_OBSD_ENV)
+ /* OK, there are no internal vrefCounts, so there shouldn't
+ be any more refs here. */
+ if (avc->v) {
+ avc->v->v_data = NULL; /* remove from vnode */
+ avc->v = NULL; /* also drop the ptr to vnode */
+ }
+#endif
afs_FreeAllAxs(&(avc->Access));
- /* we can't really give back callbacks on RO files, since the
+ /* we can't really give back callbacks on RO files, since the
* 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. */
avc->states &= ~(CStatd | CUnique);
ReleaseWriteLock(&afs_xcbhash);
afs_symhint_inval(avc);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (avc); /* if it (could be) a directory */
- else
- osi_dnlc_purgevp (avc);
+ if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ osi_dnlc_purgedp (avc); /* if it (could be) a directory */
+ else
+ osi_dnlc_purgevp (avc);
/*
* Next, keep track of which vnodes we've deleted for create's
if (avc->vlruq.prev || avc->vlruq.next) {
refpanic ("LRU vs. Free inconsistency");
}
-#else
+#else
/* This should put it back on the vnode free list since usecount is 1 */
afs_vcount--;
vSetType(avc, VREG);
avc->states &= ~CMAPPED; /* mainly used by SunOS 4.0.x */
avc->states &= ~CDirty; /* Turn it off */
if (avc->states & CUnlinked) {
- if (CheckLock(&afs_xvcache) || CheckLock(&afs_xdcache)) {
+ if (CheckLock(&afs_xvcache) || CheckLock(&afs_xdcache)) {
avc->states |= CUnlinkedDel;
- return;
+ return;
}
afs_remunlink(avc, 1); /* ignore any return code */
}
* Environment: holds xvcb lock over RPC to guard against race conditions
* when a new callback is granted for the same file later on.
*/
-afs_int32 afs_FlushVCBs (afs_int32 lockit)
+afs_int32 afs_FlushVCBs (afs_int32 lockit)
{
struct AFSFid tfids[AFS_MAXCBRSCALL];
struct AFSCallBack callBacks[1];
ObtainReadLock(&afs_xserver);
for(i=0; i<NSERVERS; i++) {
for(safety1 = 0, tsp = afs_servers[i];
- tsp && safety1 < afs_totalServers+10; tsp=tsp->next, safety1++) {
+ tsp && safety1 < afs_totalServers+10; tsp=tsp->next, safety1++) {
/* don't have any */
if (tsp->cbrs == (struct afs_cbr *) 0) continue;
* All done at this level ... ascend and resume the search.
*/
if (this_parent != parent) {
- next = this_parent->d_child.next;
+ next = this_parent->d_child.next;
this_parent = this_parent->d_parent;
goto resume;
}
struct list_head *cur;
struct list_head *head = &ip->i_dentry;
struct dentry *dentry;
-
+
AFS_GUNLOCK();
restart:
#ifndef old_vcache_scheme
cur = head;
while ((cur = cur->next) != head) {
dentry = list_entry(cur, struct dentry, d_alias);
-
+
afs_Trace3(afs_iclSetp, CM_TRACE_TRYFLUSHDCACHECHILDREN,
ICL_TYPE_POINTER, ip,
ICL_TYPE_STRING, dentry->d_parent->d_name.name,
* afid : The file id of the file whose cache entry is being
* created.
*/
-/* LOCK: afs_NewVCache afs_xvcache W */
+/* LOCK: afs_NewVCache afs_xvcache W */
struct vcache *afs_NewVCache(struct VenusFid *afid, struct server *serverp)
{
struct vcache *tvc;
AFS_STATCNT(afs_NewVCache);
#ifdef AFS_OSF_ENV
#ifdef AFS_OSF30_ENV
- if (afs_vcount >= afs_maxvcount)
+ 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,
+ * 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 ( (( 3 * afs_vcount ) > nvnode) || ( afs_vcount >= afs_maxvcount )) {
#endif
- {
- struct afs_q *tq, *uq;
- int i; char *panicstr;
+ struct afs_q *tq, *uq;
+ int i; char *panicstr;
- i = 0;
- for(tq = VLRU.prev; tq != &VLRU && anumber > 0; tq = uq) {
+ i = 0;
+ for (tq = VLRU.prev; tq != &VLRU && anumber > 0; tq = uq) {
tvc = QTOV(tq);
uq = QPrev(tq);
- if (tvc->states & CVFlushed)
- refpanic ("CVFlushed on VLRU");
+ if (tvc->states & CVFlushed)
+ refpanic ("CVFlushed on VLRU");
else if (i++ > afs_maxvcount)
- refpanic ("Exceeded pool of AFS vnodes(VLRU cycle?)");
+ refpanic ("Exceeded pool of AFS vnodes(VLRU cycle?)");
else if (QNext(uq) != tq)
- refpanic ("VLRU inconsistent");
- else if (VREFCOUNT(tvc) < 1)
- refpanic ("refcnt 0 on VLRU");
+ refpanic ("VLRU inconsistent");
+ else if (VREFCOUNT(tvc) < 1)
+ refpanic ("refcnt 0 on VLRU");
- if ( VREFCOUNT(tvc) == 1 && tvc->opens == 0
+ if ( VREFCOUNT(tvc) == 1 && tvc->opens == 0
&& (tvc->states & CUnlinkedDel) == 0) {
code = afs_FlushVCache(tvc, &fv_slept);
if (code == 0) {
- anumber--;
+ anumber--;
}
if (fv_slept) {
- uq = VLRU.prev;
- i = 0;
- continue; /* start over - may have raced. */
+ uq = VLRU.prev;
+ i = 0;
+ continue; /* start over - may have raced. */
}
}
if (tq == uq) break;
- }
- if (anumber == VCACHE_FREE) {
- printf("NewVCache: warning none freed, using %d of %d\n",
+ }
+ if (anumber == VCACHE_FREE) {
+ printf("NewVCache: warning none freed, using %d of %d\n",
afs_vcount, afs_maxvcount);
if (afs_vcount >= afs_maxvcount) {
osi_Panic("NewVCache - none freed");
- /* XXX instead of panicing, should do afs_maxvcount++
+ /* XXX instead of panicing, should do afs_maxvcount++
and magic up another one */
}
- }
- }
+ }
+ }
AFS_GUNLOCK();
if (getnewvnode(MOUNT_AFS, &Afs_vnodeops, &nvc)) {
AFS_GLOCK();
tvc = nvc;
- tvc->nextfree = NULL;
+ tvc->nextfree = NULL;
afs_vcount++;
#else /* AFS_OSF_ENV */
/* pull out a free cache entry */
if (!freeVCList) {
i = 0;
- for(tq = VLRU.prev; (anumber > 0) && (tq != &VLRU); tq = uq) {
- tvc = QTOV(tq);
- uq = QPrev(tq);
+ for (tq = VLRU.prev; (anumber > 0) && (tq != &VLRU); tq = uq) {
+ tvc = QTOV(tq);
+ uq = QPrev(tq);
- if (tvc->states & CVFlushed) {
+ if (tvc->states & CVFlushed) {
refpanic("CVFlushed on VLRU");
- } else if (i++ > 2*afs_cacheStats) { /* even allowing for a few xallocs...*/
+ } 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) {
+ } else if (QNext(uq) != tq) {
refpanic("VLRU inconsistent");
- }
+ }
#ifdef AFS_DARWIN_ENV
- if (tvc->opens == 0 && ((tvc->states & CUnlinkedDel) == 0) &&
+ if (tvc->opens == 0 && ((tvc->states & CUnlinkedDel) == 0) &&
VREFCOUNT(tvc) == 1 && UBCINFOEXISTS(&tvc->v)) {
- osi_VM_TryReclaim(tvc, &fv_slept);
- if (fv_slept) {
- uq = VLRU.prev;
- i = 0;
- continue; /* start over - may have raced. */
- }
+ osi_VM_TryReclaim(tvc, &fv_slept);
+ if (fv_slept) {
+ uq = VLRU.prev;
+ i = 0;
+ continue; /* start over - may have raced. */
+ }
}
#endif
#if defined(AFS_FBSD_ENV)
- if (VREFCOUNT(tvc) == 1 && tvc->opens == 0
- && (tvc->states & CUnlinkedDel) == 0) {
- if (!(VOP_LOCK(&tvc->v, LK_EXCLUSIVE, curproc))) {
- if (VREFCOUNT(tvc) == 1 && tvc->opens == 0
- && (tvc->states & CUnlinkedDel) == 0) {
- VREFCOUNT_DEC(tvc);
- AFS_GUNLOCK(); /* perhaps inline inactive for locking */
- VOP_INACTIVE(&tvc->v, curproc);
- AFS_GLOCK();
- } else {
- VOP_UNLOCK(&tvc->v, 0, curproc);
- }
- }
- }
+ if (VREFCOUNT(tvc) == 1 && tvc->opens == 0
+ && (tvc->states & CUnlinkedDel) == 0) {
+ if (!(VOP_LOCK(&tvc->v, LK_EXCLUSIVE, curproc))) {
+ if (VREFCOUNT(tvc) == 1 && tvc->opens == 0
+ && (tvc->states & CUnlinkedDel) == 0) {
+ VREFCOUNT_DEC(tvc);
+ AFS_GUNLOCK(); /* perhaps inline inactive for locking */
+ VOP_INACTIVE(&tvc->v, curproc);
+ AFS_GLOCK();
+ } else {
+ VOP_UNLOCK(&tvc->v, 0, curproc);
+ }
+ }
+ }
#endif
#if defined(AFS_LINUX22_ENV)
if (tvc != afs_globalVp && VREFCOUNT(tvc) && tvc->opens == 0)
afs_TryFlushDcacheChildren(tvc);
#endif
- if (VREFCOUNT(tvc) == 0 && tvc->opens == 0
- && (tvc->states & CUnlinkedDel) == 0) {
+ if (VREFCOUNT(tvc) == 0 && tvc->opens == 0
+ && (tvc->states & CUnlinkedDel) == 0) {
code = afs_FlushVCache(tvc, &fv_slept);
if (code == 0) {
- anumber--;
+ anumber--;
}
if (fv_slept) {
- uq = VLRU.prev;
- i = 0;
- continue; /* start over - may have raced. */
+ uq = VLRU.prev;
+ i = 0;
+ continue; /* start over - may have raced. */
}
- }
- if (tq == uq ) break;
+ }
+ if (tq == uq ) break;
}
}
if (!freeVCList) {
#if defined(AFS_SUN55_ENV)
/* This is required if the kaio (kernel aynchronous io)
** module is installed. Inside the kernel, the function
- ** check_vp( common/os/aio.c) checks to see if the kernel has
+ ** check_vp( common/os/aio.c) checks to see if the kernel has
** to provide asynchronous io for this vnode. This
** function extracts the device number by following the
** v_data field of the vnode. If we do not set this field
#ifdef AFS_DARWIN_ENV
tvc->v.v_ubcinfo = UBC_INFO_NULL;
lockinit(&tvc->rwlock, PINOD, "vcache rwlock", 0, 0);
- cache_purge(AFSTOV(tvc));
+ cache_purge(AFSTOV(tvc));
tvc->v.v_data=tvc;
tvc->v.v_tag=VT_AFS;
/* VLISTNONE(&tvc->v); */
tvc->v.v_freelist.tqe_next=0;
tvc->v.v_freelist.tqe_prev=(struct vnode **)0xdeadb;
/*tvc->vrefCount++;*/
-#endif
+#endif
#ifdef AFS_FBSD_ENV
lockinit(&tvc->rwlock, PINOD, "vcache rwlock", 0, 0);
- cache_purge(AFSTOV(tvc));
+ cache_purge(AFSTOV(tvc));
tvc->v.v_data=tvc;
tvc->v.v_tag=VT_AFS;
tvc->v.v_usecount++; /* steal an extra ref for now so vfree never happens */
/*
* The proper value for mvstat (for root fids) is setup by the caller.
*/
- tvc->mvstat = 0;
+ tvc->mvstat = 0;
if (afid->Fid.Vnode == 1 && afid->Fid.Unique == 1)
- tvc->mvstat = 2;
+ tvc->mvstat = 2;
if (afs_globalVFS == 0) osi_Panic("afs globalvfs");
vSetVfsp(tvc, afs_globalVFS);
vSetType(tvc, VREG);
* this code. Also, drop the afs_xvcache lock while
* getting vcache locks.
*/
- osi_vnhold(tvc,0);
+ osi_vnhold(tvc, 0);
ReleaseReadLock(&afs_xvcache);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
+#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
afs_BozonLock(&tvc->pvnLock, tvc);
#endif
#if defined(AFS_SGI_ENV)
ICL_TYPE_INT32, tvc->execsOrWriters);
code = afs_StoreOnLastReference(tvc, &ureq);
ReleaseWriteLock(&tvc->lock);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
+#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
afs_BozonUnlock(&tvc->pvnLock, tvc);
#endif
hzero(tvc->flushDV);
}
} else if (tvc->states & CUnlinkedDel) {
/*
- * Ignore errors
+ * Ignore errors
*/
ReleaseWriteLock(&tvc->lock);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
+#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
afs_BozonUnlock(&tvc->pvnLock, tvc);
#endif
#if defined(AFS_SGI_ENV)
/* Matches write code setting CCore flag */
crfree(cred);
}
- }
+ }
#ifdef AFS_DARWIN_ENV
if (VREFCOUNT(tvc) == 1 && UBCINFOEXISTS(&tvc->v)) {
if (tvc->opens) panic("flushactive open, hasubc, but refcnt 1");
*
* Description:
* 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
+ * Anymore, the only places that call this KNOW already that the
* vcache is not up-to-date, so we don't screw around.
*
* Parameters:
return 0;
}
ObtainWriteLock(&afs_xcbhash, 461);
- avc->states &= ~( CStatd | CUnique );
+ avc->states &= ~( CStatd | CUnique );
avc->callback = NULL;
afs_DequeueCallback(avc);
ReleaseWriteLock(&afs_xcbhash);
ReleaseWriteLock(&avc->lock);
- /* since we've been called back, or the callback has expired,
- * it's possible that the contents of this directory, or this
+ /* since we've been called back, or the callback has expired,
+ * 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->states & CForeign) || (avc->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);
if (!tvc) return ENOENT;
*
* Callers: as of 1992-04-29, only called by WriteVCache
*/
-static void afs_SimpleVStat(register struct vcache *avc,
+static void afs_SimpleVStat(register struct vcache *avc,
register struct AFSFetchStatus *astat, struct vrequest *areq)
{
afs_size_t length;
(OSI_GET_LOCKID() == avc->vc_rwlockid));
if (length < avc->m.Length) {
vnode_t *vp = (vnode_t *)avc;
-
+
osi_Assert(WriteLocked(&avc->lock));
ReleaseWriteLock(&avc->lock);
AFS_GUNLOCK();
struct axscache *ac;
avc->anyAccess = astat->AnonymousAccess;
#ifdef badidea
- if ((astat->CallerAccess & ~astat->AnonymousAccess))
- /* USED TO SAY :
+ if ((astat->CallerAccess & ~astat->AnonymousAccess))
+ /* USED TO SAY :
* Caller has at least one bit not covered by anonymous, and
* thus may have interesting rights.
*
* HOWEVER, this is a really bad idea, because any access query
* for bits which aren't covered by anonymous, on behalf of a user
- * who doesn't have any special rights, will result in an answer of
+ * who doesn't have any special rights, will result in an answer of
* the form "I don't know, lets make a FetchStatus RPC and find out!"
* It's an especially bad idea under Ultrix, since (due to the lack of
- * a proper access() call) it must perform several afs_access() calls
+ * a proper access() call) it must perform several afs_access() calls
* in order to create magic mode bits that vary according to who makes
- * the call. In other words, _every_ stat() generates a test for
+ * the call. In other words, _every_ stat() generates a test for
* writeability...
*/
#endif /* badidea */
* Must be called with a shared lock held on the vnode.
*/
-int afs_WriteVCache(register struct vcache *avc,
+int afs_WriteVCache(register struct vcache *avc,
register struct AFSStoreStatus *astatus, struct vrequest *areq)
{
afs_int32 code;
afs_DequeueCallback(avc);
avc->states &= ~( CStatd | CUnique); /* turn off stat valid flag */
ReleaseWriteLock(&afs_xcbhash);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
osi_dnlc_purgedp (avc); /* if it (could be) a directory */
}
ConvertWToSLock(&avc->lock);
* been modified. This is less than ideal. I haven't thought about
* it sufficiently to be certain that it is adequate.
*/
-void afs_ProcessFS(register struct vcache *avc, register struct AFSFetchStatus *astat,
+void afs_ProcessFS(register struct vcache *avc, register struct AFSFetchStatus *astat,
struct vrequest *areq)
{
afs_size_t length;
}
avc->anyAccess = astat->AnonymousAccess;
#ifdef badidea
- if ((astat->CallerAccess & ~astat->AnonymousAccess))
- /* USED TO SAY :
+ if ((astat->CallerAccess & ~astat->AnonymousAccess))
+ /* USED TO SAY :
* Caller has at least one bit not covered by anonymous, and
* thus may have interesting rights.
*
* HOWEVER, this is a really bad idea, because any access query
* for bits which aren't covered by anonymous, on behalf of a user
- * who doesn't have any special rights, will result in an answer of
+ * who doesn't have any special rights, will result in an answer of
* the form "I don't know, lets make a FetchStatus RPC and find out!"
* It's an especially bad idea under Ultrix, since (due to the lack of
- * a proper access() call) it must perform several afs_access() calls
+ * a proper access() call) it must perform several afs_access() calls
* in order to create magic mode bits that vary according to who makes
- * the call. In other words, _every_ stat() generates a test for
+ * the call. In other words, _every_ stat() generates a test for
* writeability...
*/
#endif /* badidea */
} /*afs_ProcessFS*/
-int afs_RemoteLookup(register struct VenusFid *afid, struct vrequest *areq,
- char *name, struct VenusFid *nfid, struct AFSFetchStatus *OutStatusp,
+int afs_RemoteLookup(register struct VenusFid *afid, struct vrequest *areq,
+ char *name, struct VenusFid *nfid, struct AFSFetchStatus *OutStatusp,
struct AFSCallBack *CallBackp, struct server **serverp, struct AFSVolSync *tsyncp)
{
afs_int32 code;
XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_XLOOKUP);
RX_AFS_GUNLOCK();
code = RXAFS_Lookup(tc->id, (struct AFSFid *) &afid->Fid, name,
- (struct AFSFid *) &nfid->Fid,
+ (struct AFSFid *) &nfid->Fid,
OutStatusp, &OutDirStatus, CallBackp, tsyncp);
RX_AFS_GLOCK();
XSTATS_END_TIME;
- } else
+ } else
code = -1;
} while
(afs_Analyze(tc, code, afid, areq,
* 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
+ * avc : caller may already have a vcache for this file, which is
* already held.
*
* Environment:
*
* 1. Lock all files first, then directories.
* 2. Within a particular type, lock entries in Fid.Vnode order.
- *
+ *
* This locking hierarchy is convenient because it allows locking
* of a parent dir cache entry, given a file (to check its access
* control list). It also allows renames to be handled easily by
/* 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,
+struct vcache *afs_GetVCache(register struct VenusFid *afid, struct vrequest *areq,
afs_int32 *cached, struct vcache *avc)
{
loop:
#endif
- ObtainSharedLock(&afs_xvcache,5);
+ ObtainSharedLock(&afs_xvcache,5);
tvc = afs_FindVCache(afid, &retry, DO_STATS | DO_VLRU );
if (tvc && retry) {
goto loop;
#endif
}
-
+
if (tvc) {
- if (cached)
+ if (cached)
*cached = 1;
- if (tvc->states & CStatd) {
+ if (tvc->states & CStatd) {
ReleaseSharedLock(&afs_xvcache);
return tvc;
}
}
- else {
+ else {
UpgradeSToWLock(&afs_xvcache,21);
/* no cache entry, better grab one */
#endif /* AFS_OSF_ENV */
ObtainWriteLock(&afs_xcbhash, 464);
- tvc->states &= ~CUnique;
+ tvc->states &= ~CUnique;
tvc->callback = 0;
afs_DequeueCallback(tvc);
ReleaseWriteLock(&afs_xcbhash);
if (tvp) {
if ((tvp->states & VForeign)) {
if (newvcache) tvc->states |= CForeign;
- if (newvcache && (tvp->rootVnode == afid->Fid.Vnode)
+ if (newvcache && (tvp->rootVnode == afid->Fid.Vnode)
&& (tvp->rootUnique == afid->Fid.Unique)) {
tvc->mvstat = 2;
}
}
ReleaseReadLock(&tvc->lock);
return tvc;
- }
- tvc->states &= ~CUnique;
+ }
+ tvc->states &= ~CUnique;
ReleaseReadLock(&tvc->lock);
ObtainReadLock(&afs_xvcache);
now = osi_Time();
origCBs = afs_allCBs; /* if anything changes, we don't have a cb */
code = afs_RemoteLookup(&adp->fid, areq, aname, &nfid, &OutStatus, &CallBack,
- &serverp, &tsync);
+ &serverp, &tsync);
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
loop2:
ReleaseSharedLock(&afs_xvcache);
ObtainWriteLock(&tvc->lock,55);
-
+
/* It is always appropriate to throw away all the access rights? */
afs_FreeAllAxs(&(tvc->Access));
tvp = afs_GetVolume(afid, areq, READ_LOCK); /* copy useful per-vol info */
afs_DequeueCallback(tvc);
tvc->states &= ~( CStatd | CUnique );
ReleaseWriteLock(&afs_xcbhash);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
if ( tvp )
afs_PutVolume(tvp, READ_LOCK);
tvc->cbExpires = 3600+osi_Time(); /*XXX*/
tvc->states |= CStatd | CUnique;
tvc->states &= ~CBulkFetching;
- afs_QueueCallback(tvc, CBHash(3600), tvp);
+ 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->states &= ~(CStatd | CUnique);
+ if ((tvc->states & CForeign) || (tvc->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->states &= ~CStatd;
+ tvc->states &= ~CUnique;
tvc->callback = NULL;
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
- }
+ }
ReleaseWriteLock(&afs_xcbhash);
if ( tvp )
afs_PutVolume(tvp, READ_LOCK);
tfid = *afid;
tfid.Fid.Vnode = 0; /* Means get rootfid of volume */
origCBs = afs_allCBs; /* ignore InitCallBackState */
- code = afs_RemoteLookup(&tfid, areq, NULL, &nfid,
+ code = afs_RemoteLookup(&tfid, areq, NULL, &nfid,
&OutStatus, &CallBack, &serverp, &tsync);
if (code) {
return NULL;
ObtainWriteLock(&tvolp->lock,56);
tvolp->rootVnode = afid->Fid.Vnode = nfid.Fid.Vnode;
tvolp->rootUnique = afid->Fid.Unique = nfid.Fid.Unique;
- ReleaseWriteLock(&tvolp->lock);
+ ReleaseWriteLock(&tvolp->lock);
/* ObtainReadLock(&tvolp->lock);*/
haveStatus = 1;
} else {
afid->Fid.Vnode = tvolp->rootVnode;
afid->Fid.Unique = tvolp->rootUnique;
- }
-
+ }
+
ObtainSharedLock(&afs_xvcache,7);
i = VCHash(afid);
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if (!FidCmp(&(tvc->fid), afid)) {
#ifdef AFS_OSF_ENV
/* Grab this vnode, possibly reactivating from the free list */
- /* for the present (95.05.25) everything on the hash table is
+ /* for the present (95.05.25) everything on the hash table is
* definitively NOT in the free list -- at least until afs_reclaim
* can be safely implemented */
int vg;
#ifdef AFS_OSF_ENV
/* we already bumped the ref count in the for loop above */
#else /* AFS_OSF_ENV */
- osi_vnhold(tvc,0);
+ osi_vnhold(tvc, 0);
#endif
UpgradeSToWLock(&afs_xvcache,24);
if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
if (tvc->states & CStatd) {
return tvc;
- } else {
+ } else {
ObtainReadLock(&tvc->lock);
- tvc->states &= ~CUnique;
+ tvc->states &= ~CUnique;
tvc->callback = NULL; /* redundant, perhaps */
ReleaseReadLock(&tvc->lock);
}
if (tvolp->states & VRO) tvc->states |= CRO;
if (tvolp->states & VBackup) tvc->states |= CBackup;
/* now copy ".." entry back out of volume structure, if necessary */
- if (newvcache && (tvolp->rootVnode == afid->Fid.Vnode)
+ if (newvcache && (tvolp->rootVnode == afid->Fid.Vnode)
&& (tvolp->rootUnique == afid->Fid.Unique)) {
tvc->mvstat = 2;
}
ObtainWriteLock(&afs_xcbhash, 467);
afs_DequeueCallback(tvc);
tvc->callback = NULL;
- tvc->states &= ~(CStatd|CUnique);
+ tvc->states &= ~(CStatd|CUnique);
ReleaseWriteLock(&afs_xcbhash);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
ReleaseWriteLock(&tvc->lock);
ObtainReadLock(&afs_xvcache);
ReleaseReadLock(&afs_xvcache);
return NULL;
}
-
+
ObtainWriteLock(&afs_xcbhash, 468);
if (origCBs == afs_allCBs) {
tvc->states |= CTruth;
tvc->callback = serverp;
- if (CallBack.ExpirationTime != 0) {
+ if (CallBack.ExpirationTime != 0) {
tvc->cbExpires = CallBack.ExpirationTime+start;
tvc->states |= CStatd;
tvc->states &= ~CBulkFetching;
afs_DequeueCallback(tvc);
tvc->callback = NULL;
tvc->states &= ~(CStatd | CUnique);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
afs_ProcessFS(tvc, &OutStatus, areq);
-
+
ReleaseWriteLock(&tvc->lock);
return tvc;
}
/*
- * must be called with avc write-locked
- * don't absolutely have to invalidate the hint unless the dv has
+ * 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.
*/
afs_int32 afs_FetchStatus(struct vcache *avc, struct VenusFid *afid,
ObtainWriteLock(&afs_xcbhash, 469);
avc->states |= CTruth;
if (avc->callback /* check for race */) {
- if (CallBack.ExpirationTime != 0) {
+ if (CallBack.ExpirationTime != 0) {
avc->cbExpires = CallBack.ExpirationTime+start;
avc->states |= CStatd;
avc->states &= ~CBulkFetching;
afs_QueueCallback(avc, CBHash(CallBack.ExpirationTime), volp);
}
- else if (avc->states & CRO)
+ else if (avc->states & CRO)
{ /* ordinary callback on a read-only volume -- AFS 3.2 style */
avc->cbExpires = 3600+start;
avc->states |= CStatd;
else {
afs_DequeueCallback(avc);
avc->callback = NULL;
- avc->states &= ~(CStatd|CUnique);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ avc->states &= ~(CStatd|CUnique);
+ if ((avc->states & CForeign) || (avc->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->states &= ~(CStatd|CUnique);
+ if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
osi_dnlc_purgedp (avc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
if ( volp )
afs_PutVolume(volp, READ_LOCK);
}
-else { /* used to undo the local callback, but that's too extreme.
- * There are plenty of good reasons that fetchstatus might return
- * an error, such as EPERM. If we have the vnode cached, statd,
- * with callback, might as well keep track of the fact that we
+else { /* used to undo the local callback, but that's too extreme.
+ * There are plenty of good reasons that fetchstatus might return
+ * an error, such as EPERM. If we have the vnode cached, statd,
+ * with callback, might as well keep track of the fact that we
* don't have access...
*/
if (code == EPERM || code == EACCES) {
* Environment:
* Nothing interesting.
*/
-void afs_StuffVcache(register struct VenusFid *afid,
- struct AFSFetchStatus *OutStatus, struct AFSCallBack *CallBack,
+void afs_StuffVcache(register struct VenusFid *afid,
+ struct AFSFetchStatus *OutStatus, struct AFSCallBack *CallBack,
register struct conn *tc, struct vrequest *areq)
{
register afs_int32 code, i, newvcache=0;
ObtainWriteLock(&tvc->lock,58);
tvc->states &= ~CStatd;
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ if ((tvc->states & CForeign) || (tvc->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? */
afs_ProcessFS(tvc, OutStatus, areq);
tvc->callback = tc->srvr->server;
- /* we use osi_Time twice below. Ideally, we would use the time at which
+ /* we use osi_Time twice below. Ideally, we would use the time at which
* the FetchStatus call began, instead, but we don't have it here. So we
- * make do with "now". In the CRO case, it doesn't really matter. In
- * the other case, we hope that the difference between "now" and when the
+ * make do with "now". In the CRO case, it doesn't really matter. In
+ * the other case, we hope that the difference between "now" and when the
* call actually began execution on the server won't be larger than the
- * padding which the server keeps. Subtract 1 second anyway, to be on
+ * padding which the server keeps. Subtract 1 second anyway, to be on
* the safe side. Can't subtract more because we don't know how big
* ExpirationTime is. Possible consistency problems may arise if the call
* timeout period becomes longer than the server's expiration padding. */
ObtainWriteLock(&afs_xcbhash, 470);
if (CallBack->ExpirationTime != 0) {
- tvc->cbExpires = CallBack->ExpirationTime+osi_Time()-1;
+ tvc->cbExpires = CallBack->ExpirationTime+osi_Time()-1;
tvc->states |= CStatd;
tvc->states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(CallBack->ExpirationTime), tvp);
tvc->cbExpires = 3600+osi_Time(); /*XXX*/
tvc->states |= CStatd;
tvc->states &= ~CBulkFetching;
- afs_QueueCallback(tvc, CBHash(3600), tvp);
+ 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->states &= ~(CStatd|CUnique);
+ if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
if ( tvp )
afs_PutVolume(tvp, READ_LOCK);
-
+
/* look in per-pag cache */
if (tvc->Access && (ac = afs_FindAxs(tvc->Access, areq->uid)))
ac->axess = OutStatus->CallerAccess; /* substitute pags */
*
* Parameters:
* afid : Pointer to the fid whose cache entry we desire.
- * retry: (SGI-specific) tell the caller to drop the lock on xvcache,
+ * 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.
AFS_GLOCK();
if (vg)
continue;
-#endif /* AFS_OSF_ENV */
+#endif /* AFS_OSF_ENV */
break;
}
}
if (tvc) {
if (retry) *retry = 0;
#if !defined(AFS_OSF_ENV)
- osi_vnhold(tvc, retry); /* already held, above */
- if (retry && *retry)
- return 0;
+ osi_vnhold(tvc, retry); /* already held, above */
+ if (retry && *retry)
+ return 0;
#endif
/*
* only move to front of vlru if we have proper vcache locking)
*/
if (flag & DO_VLRU) {
- if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("FindVC VLRU inconsistent1");
- }
- if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent1");
- }
- if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent2");
- }
+ if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
+ refpanic ("FindVC VLRU inconsistent1");
+ }
+ if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
+ refpanic ("FindVC VLRU inconsistent1");
+ }
+ if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
+ refpanic ("FindVC VLRU inconsistent2");
+ }
UpgradeSToWLock(&afs_xvcache,26);
QRemove(&tvc->vlruq);
QAdd(&VLRU, &tvc->vlruq);
ConvertWToSLock(&afs_xvcache);
- if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("FindVC VLRU inconsistent1");
- }
- if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent2");
- }
- if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent3");
- }
+ if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
+ refpanic ("FindVC VLRU inconsistent1");
+ }
+ if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
+ refpanic ("FindVC VLRU inconsistent2");
+ }
+ if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
+ refpanic ("FindVC VLRU inconsistent3");
+ }
}
vcachegen++;
- }
+ }
if (flag & DO_STATS) {
- if (tvc) afs_stats_cmperf.vcacheHits++;
- else afs_stats_cmperf.vcacheMisses++;
- if (afs_IsPrimaryCellNum(afid->Cell))
- afs_stats_cmperf.vlocalAccesses++;
- else
- afs_stats_cmperf.vremoteAccesses++;
+ if (tvc)
+ afs_stats_cmperf.vcacheHits++;
+ else
+ afs_stats_cmperf.vcacheMisses++;
+ if (afs_IsPrimaryCellNum(afid->Cell))
+ afs_stats_cmperf.vlocalAccesses++;
+ else
+ afs_stats_cmperf.vremoteAccesses++;
}
#ifdef AFS_LINUX22_ENV
* 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,
+ * 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.
loop:
#endif
- ObtainSharedLock(&afs_xvcache,331);
+ ObtainSharedLock(&afs_xvcache,331);
i = VCHash(afid);
for(tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if (tvc) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
afs_int32 retry = 0;
- osi_vnhold(tvc, &retry);
+ osi_vnhold(tvc, &retry);
if (retry) {
count = 0;
found_tvc = (struct vcache*)0;
#if defined(AFS_OSF30_ENV)
afs_maxvcount = max_vnodes/2; /* limit ourselves to half the total */
#else
- afs_maxvcount = nvnode/2; /* limit ourselves to half the total */
-#endif
+ afs_maxvcount = nvnode/2; /* limit ourselves to half the total */
+#endif
if (astatSize < afs_maxvcount) {
afs_maxvcount = astatSize;
}
freeVCList = &(tvp[0]);
for(i=0; i < astatSize-1; i++) {
tvp[i].nextfree = &(tvp[i+1]);
- }
+ }
tvp[astatSize-1].nextfree = NULL;
#ifdef KERNEL_HAVE_PIN
- pin((char *)tvp, astatSize * sizeof(struct vcache)); /* XXX */
+ pin((char *)tvp, astatSize * sizeof(struct vcache)); /* XXX */
#endif
#endif
tvc->linkData = 0;
}
}
- /*
- * Also free the remaining ones in the Cache
+ /*
+ * Also free the remaining ones in the Cache
*/
for (i=0; i < VCSIZE; i++) {
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
git://git.openafs.org / openafs.git / blobdiff