/*
* 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 "afs/param.h"
-RCSID("$Header$");
+RCSID
+ ("$Header$");
-#include "../afs/sysincludes.h" /*Standard vendor system headers*/
-#include "../afs/afsincludes.h" /*AFS-based standard headers*/
-#include "../afs/afs_stats.h"
-#include "../afs/afs_cbqueue.h"
-#include "../afs/afs_osidnlc.h"
+#include "afs/sysincludes.h" /*Standard vendor system headers */
+#include "afsincludes.h" /*AFS-based standard headers */
+#include "afs/afs_stats.h"
+#include "afs/afs_cbqueue.h"
+#include "afs/afs_osidnlc.h"
#ifdef AFS_OSF_ENV
-afs_int32 afs_maxvcount = 0; /* max number of vcache entries */
-afs_int32 afs_vcount = 0; /* number of vcache in use now */
-#if defined(AFS_OSF30_ENV)
-extern int max_vnodes; /* number of total system vnodes */
-#else
-extern int nvnode; /* number of total system vnodes */
-#endif
-#ifndef AFS_OSF30_ENV
-extern int numvnodes; /* number vnodes in use now */
-#endif
+afs_int32 afs_maxvcount = 0; /* max number of vcache entries */
+afs_int32 afs_vcount = 0; /* number of vcache in use now */
#endif /* AFS_OSF_ENV */
+
#ifdef AFS_SGI_ENV
int afsvnumbers = 0;
#endif
-/* Imported variables */
-extern struct server *afs_servers[NSERVERS];
-extern afs_rwlock_t afs_xserver;
-extern afs_rwlock_t afs_xcbhash;
-extern struct vcache *afs_globalVp;
-#ifdef AFS_OSF_ENV
-extern struct mount *afs_globalVFS;
-extern struct vnodeops Afs_vnodeops;
-#elif defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
-extern struct mount *afs_globalVFS;
-#else
-extern struct vfs *afs_globalVFS;
-#endif /* AFS_OSF_ENV */
-#if defined(AFS_DUX40_ENV)
-extern struct vfs_ubcops afs_ubcops;
-#endif
-#ifdef AFS_SGI62_ENV
-extern struct vnodeops Afs_vnodeops;
-#endif
#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*/
-struct vcache *freeVCList; /*Free list for stat cache entries*/
-struct vcache *Initial_freeVCList; /*Initial list for above*/
-struct afs_q VLRU; /*vcache LRU*/
+afs_rwlock_t afs_xvcache; /*Lock: alloc new stat cache entries */
+afs_lock_t afs_xvcb; /*Lock: fids on which there are callbacks */
+struct vcache *freeVCList; /*Free list for stat cache entries */
+struct vcache *Initial_freeVCList; /*Initial list for above */
+struct afs_q VLRU; /*vcache LRU */
afs_int32 vcachegen = 0;
unsigned int afs_paniconwarn = 0;
struct vcache *afs_vhashT[VCSIZE];
+static struct afs_cbr *afs_cbrHashT[CBRSIZE];
afs_int32 afs_bulkStatsLost;
int afs_norefpanic = 0;
/* Forward declarations */
static afs_int32 afs_QueueVCB(struct vcache *avc);
+/*
+ * afs_HashCBRFid
+ *
+ * Generate an index into the hash table for a given Fid.
+ */
+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.
+ */
+static void
+afs_InsertHashCBR(struct afs_cbr *cbr)
+{
+ int slot = afs_HashCBRFid(&cbr->fid);
+
+ cbr->hash_next = afs_cbrHashT[slot];
+ if (afs_cbrHashT[slot])
+ afs_cbrHashT[slot]->hash_pprev = &cbr->hash_next;
+
+ cbr->hash_pprev = &afs_cbrHashT[slot];
+ afs_cbrHashT[slot] = cbr;
+}
/*
* afs_FlushVCache
* 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
*/
-int afs_FlushVCache(struct vcache *avc, int *slept)
-{ /*afs_FlushVCache*/
+int
+afs_FlushVCache(struct vcache *avc, int *slept)
+{ /*afs_FlushVCache */
register afs_int32 i, code;
- register struct vcache **uvc, *wvc, *tvc;
+ register struct vcache **uvc, *wvc;
*slept = 0;
AFS_STATCNT(afs_FlushVCache);
code = EBUSY;
goto bad;
}
- if (avc->nextfree || !avc->vlruq.prev || !avc->vlruq.next) { /* qv afs.h */
- refpanic ("LRU vs. Free inconsistency");
+ if (avc->nextfree || !avc->vlruq.prev || !avc->vlruq.next) { /* qv afs.h */
+ refpanic("LRU vs. Free inconsistency");
}
avc->states |= CVFlushed;
/* pull the entry out of the lruq and put it on the free list */
QRemove(&avc->vlruq);
- avc->vlruq.prev = avc->vlruq.next = (struct afs_q *) 0;
+ avc->vlruq.prev = avc->vlruq.next = (struct afs_q *)0;
/* keep track of # of files that we bulk stat'd, but never used
* before they got recycled.
/* remove entry from the hash chain */
i = VCHash(&avc->fid);
uvc = &afs_vhashT[i];
- for(wvc = *uvc; wvc; uvc = &wvc->hnext, wvc = *uvc) {
+ for (wvc = *uvc; wvc; uvc = &wvc->hnext, wvc = *uvc) {
if (avc == wvc) {
*uvc = avc->hnext;
- avc->hnext = (struct vcache *) NULL;
+ avc->hnext = (struct vcache *)NULL;
break;
}
}
- if (!wvc) osi_Panic("flushvcache"); /* not in correct hash bucket */
- if (avc->mvid) osi_FreeSmallSpace(avc->mvid);
- avc->mvid = (struct VenusFid*)0;
+ if (!wvc)
+ osi_Panic("flushvcache"); /* not in correct hash bucket */
+ 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_XBSD_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. */
afs_QueueVCB(avc);
}
ObtainWriteLock(&afs_xcbhash, 460);
- afs_DequeueCallback(avc); /* remove it from queued callbacks list */
+ afs_DequeueCallback(avc); /* remove it from queued callbacks list */
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
* optimistic synchronization algorithm
*/
afs_allZaps++;
- if (avc->fid.Fid.Vnode & 1) afs_oddZaps++;
- else afs_evenZaps++;
+ if (avc->fid.Fid.Vnode & 1)
+ afs_oddZaps++;
+ else
+ afs_evenZaps++;
#if !defined(AFS_OSF_ENV)
/* put the entry in the free list */
avc->nextfree = freeVCList;
freeVCList = avc;
if (avc->vlruq.prev || avc->vlruq.next) {
- refpanic ("LRU vs. Free inconsistency");
+ 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);
if (VREFCOUNT(avc) > 0) {
- VN_UNLOCK(AFSTOV(avc));
- AFS_RELE(AFSTOV(avc));
+ VN_UNLOCK(AFSTOV(avc));
+ AFS_RELE(AFSTOV(avc));
} else {
- if (afs_norefpanic) {
- printf ("flush vc refcnt < 1");
- afs_norefpanic++;
- (void) vgone(avc, VX_NOSLEEP, (struct vnodeops *) 0);
- AFS_GLOCK();
- VN_UNLOCK(AFSTOV(avc));
- }
- else osi_Panic ("flush vc refcnt < 1");
- }
-#endif /* AFS_OSF_ENV */
+ if (afs_norefpanic) {
+ printf("flush vc refcnt < 1");
+ afs_norefpanic++;
+ (void)vgone(avc, VX_NOSLEEP, NULL);
+ AFS_GLOCK();
+ VN_UNLOCK(AFSTOV(avc));
+ } else
+ osi_Panic("flush vc refcnt < 1");
+ }
+#endif /* AFS_OSF_ENV */
avc->states |= CVFlushed;
return 0;
-bad:
+ bad:
#ifdef AFS_OSF_ENV
VN_UNLOCK(AFSTOV(avc));
#endif
return code;
-} /*afs_FlushVCache*/
+} /*afs_FlushVCache */
#ifndef AFS_SGI_ENV
/*
*
* The core of the inactive vnode op for all but IRIX.
*/
-void afs_InactiveVCache(struct vcache *avc, struct AFS_UCRED *acred)
+void
+afs_InactiveVCache(struct vcache *avc, struct AFS_UCRED *acred)
{
- extern afs_rwlock_t afs_xdcache, afs_xvcache;
-
AFS_STATCNT(afs_inactive);
if (avc->states & CDirty) {
- /* we can't keep trying to push back dirty data forever. Give up. */
- afs_InvalidateAllSegments(avc); /* turns off dirty bit */
+ /* 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 */
+ 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 */
}
* held, so we don't have to worry about blocking in osi_Alloc.
*/
static struct afs_cbr *afs_cbrSpace = 0;
-struct afs_cbr *afs_AllocCBR() {
+struct afs_cbr *
+afs_AllocCBR(void)
+{
register struct afs_cbr *tsp;
int i;
/* don't allocate more than 2 * AFS_NCBRS for now */
afs_FlushVCBs(0);
afs_stats_cmperf.CallBackFlushes++;
- }
- else {
+ } else {
/* try allocating */
- tsp = (struct afs_cbr *) afs_osi_Alloc(AFS_NCBRS * sizeof(struct afs_cbr));
- for(i=0; i < AFS_NCBRS-1; i++) {
- tsp[i].next = &tsp[i+1];
+ tsp =
+ (struct afs_cbr *)afs_osi_Alloc(AFS_NCBRS *
+ sizeof(struct afs_cbr));
+ for (i = 0; i < AFS_NCBRS - 1; i++) {
+ tsp[i].next = &tsp[i + 1];
}
- tsp[AFS_NCBRS-1].next = 0;
+ tsp[AFS_NCBRS - 1].next = 0;
afs_cbrSpace = tsp;
afs_stats_cmperf.CallBackAlloced++;
}
/*
* afs_FreeCBR
*
- * Description: free a callback return structure.
+ * Description: free a callback return structure, removing it from all lists.
*
* Parameters:
* asp -- the address of the structure to free.
*
* Environment: the xvcb lock is held over these calls.
*/
-afs_FreeCBR(asp)
-register struct afs_cbr *asp; {
+int
+afs_FreeCBR(register struct afs_cbr *asp)
+{
+ *(asp->pprev) = asp->next;
+ if (asp->next)
+ asp->next->pprev = asp->pprev;
+
+ *(asp->hash_pprev) = asp->hash_next;
+ if (asp->hash_next)
+ asp->hash_next->hash_pprev = asp->hash_pprev;
+
asp->next = afs_cbrSpace;
afs_cbrSpace = asp;
return 0;
* 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 AFSFid *tfids;
struct AFSCallBack callBacks[1];
struct AFSCBFids fidArray;
struct AFSCBs cbArray;
struct vrequest treq;
struct conn *tc;
int safety1, safety2, safety3;
- extern int afs_totalServers;
- XSTATS_DECLS
-
- if (code = afs_InitReq(&treq, &afs_osi_cred)) return code;
+ XSTATS_DECLS;
+ if ((code = afs_InitReq(&treq, afs_osi_credp)))
+ return code;
treq.flags |= O_NONBLOCK;
+ tfids = afs_osi_Alloc(sizeof(struct AFSFid) * AFS_MAXCBRSCALL);
- if (lockit) MObtainWriteLock(&afs_xvcb,273);
+ if (lockit)
+ MObtainWriteLock(&afs_xvcb, 273);
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++) {
+ for (i = 0; i < NSERVERS; i++) {
+ for (safety1 = 0, tsp = afs_servers[i];
+ tsp && safety1 < afs_totalServers + 10;
+ tsp = tsp->next, safety1++) {
/* don't have any */
- if (tsp->cbrs == (struct afs_cbr *) 0) continue;
+ if (tsp->cbrs == (struct afs_cbr *)0)
+ continue;
/* otherwise, grab a block of AFS_MAXCBRSCALL from the list
* and make an RPC, over and over again.
*/
- tcount = 0; /* number found so far */
- for (safety2 = 0; safety2 < afs_cacheStats ; safety2++) {
+ tcount = 0; /* number found so far */
+ for (safety2 = 0; safety2 < afs_cacheStats; safety2++) {
if (tcount >= AFS_MAXCBRSCALL || !tsp->cbrs) {
/* if buffer is full, or we've queued all we're going
* to from this server, we should flush out the
* callbacks.
*/
fidArray.AFSCBFids_len = tcount;
- fidArray.AFSCBFids_val = (struct AFSFid *) tfids;
+ fidArray.AFSCBFids_val = (struct AFSFid *)tfids;
cbArray.AFSCBs_len = 1;
cbArray.AFSCBs_val = callBacks;
+ memset(&callBacks[0], 0, sizeof(callBacks[0]));
callBacks[0].CallBackType = CB_EXCLUSIVE;
- for (safety3 = 0; safety3 < MAXHOSTS*2; safety3++) {
+ for (safety3 = 0; safety3 < MAXHOSTS * 2; safety3++) {
tc = afs_ConnByHost(tsp, tsp->cell->fsport,
- tsp->cell->cell, &treq, 0,
+ tsp->cell->cellNum, &treq, 0,
SHARED_LOCK);
if (tc) {
- XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
- RX_AFS_GUNLOCK();
- code = RXAFS_GiveUpCallBacks(tc->id, &fidArray,
- &cbArray);
- RX_AFS_GLOCK();
- XSTATS_END_TIME;
- }
- else code = -1;
- if (!afs_Analyze(tc, code, 0, &treq,
- AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS,
- SHARED_LOCK, tsp->cell)) {
- break;
+ XSTATS_START_TIME
+ (AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
+ RX_AFS_GUNLOCK();
+ code =
+ RXAFS_GiveUpCallBacks(tc->id, &fidArray,
+ &cbArray);
+ RX_AFS_GLOCK();
+ XSTATS_END_TIME;
+ } else
+ code = -1;
+ if (!afs_Analyze
+ (tc, code, 0, &treq,
+ AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK,
+ tsp->cell)) {
+ break;
}
}
/* ignore return code, since callbacks may have
- * been returned anyway, we shouldn't leave them
- * around to be returned again.
- *
- * Next, see if we are done with this server, and if so,
- * break to deal with the next one.
- */
- if (!tsp->cbrs) break;
+ * been returned anyway, we shouldn't leave them
+ * around to be returned again.
+ *
+ * Next, see if we are done with this server, and if so,
+ * break to deal with the next one.
+ */
+ if (!tsp->cbrs)
+ break;
tcount = 0;
- } /* if to flush full buffer */
+ }
+ /* if to flush full buffer */
/* if we make it here, we have an entry at the head of cbrs,
* which we should copy to the file ID array and then free.
*/
tcbrp = tsp->cbrs;
tfids[tcount++] = tcbrp->fid;
- tsp->cbrs = tcbrp->next;
+
+ /* Freeing the CBR will unlink it from the server's CBR list */
afs_FreeCBR(tcbrp);
- } /* while loop for this one server */
+ } /* while loop for this one server */
if (safety2 > afs_cacheStats) {
- afs_warn("possible internal error afs_flushVCBs (%d)\n", safety2);
+ afs_warn("possible internal error afs_flushVCBs (%d)\n",
+ safety2);
}
- } /* for loop for this hash chain */
- } /* loop through all hash chains */
- if (safety1 > afs_totalServers+2) {
- afs_warn("AFS internal error (afs_flushVCBs) (%d > %d), continuing...\n", safety1, afs_totalServers+2);
- if (afs_paniconwarn)
- osi_Panic("afs_flushVCBS safety1");
+ } /* for loop for this hash chain */
+ } /* loop through all hash chains */
+ if (safety1 > afs_totalServers + 2) {
+ afs_warn
+ ("AFS internal error (afs_flushVCBs) (%d > %d), continuing...\n",
+ safety1, afs_totalServers + 2);
+ if (afs_paniconwarn)
+ osi_Panic("afs_flushVCBS safety1");
}
ReleaseReadLock(&afs_xserver);
- if (lockit) MReleaseWriteLock(&afs_xvcb);
+ if (lockit)
+ MReleaseWriteLock(&afs_xvcb);
+ afs_osi_Free(tfids, sizeof(struct AFSFid) * AFS_MAXCBRSCALL);
return 0;
}
* Called when the xvcache lock is already held.
*/
-static afs_int32 afs_QueueVCB(struct vcache *avc)
+static afs_int32
+afs_QueueVCB(struct vcache *avc)
{
- register struct server *tsp;
- register struct afs_cbr *tcbp;
+ struct server *tsp;
+ struct afs_cbr *tcbp;
AFS_STATCNT(afs_QueueVCB);
/* The callback is really just a struct server ptr. */
/* we now have a pointer to the server, so we just allocate
* a queue entry and queue it.
*/
- MObtainWriteLock(&afs_xvcb,274);
+ MObtainWriteLock(&afs_xvcb, 274);
tcbp = afs_AllocCBR();
tcbp->fid = avc->fid.Fid;
+
tcbp->next = tsp->cbrs;
+ if (tsp->cbrs)
+ tsp->cbrs->pprev = &tcbp->next;
+
tsp->cbrs = tcbp;
+ tcbp->pprev = &tsp->cbrs;
+
+ afs_InsertHashCBR(tcbp);
/* now release locks and return */
MReleaseWriteLock(&afs_xvcb);
* afs_RemoveVCB
*
* Description:
- * Remove a queued callback by looking through all the servers
- * to see if any have this callback queued.
+ * Remove a queued callback for a given Fid.
*
* Parameters:
* afid: The fid we want cleansed of queued callbacks.
* entries locked.
*/
-afs_RemoveVCB(afid)
- register struct VenusFid *afid;
+void
+afs_RemoveVCB(struct VenusFid *afid)
+{
+ int slot;
+ struct afs_cbr *cbr, *ncbr;
-{ /*afs_RemoveVCB*/
+ AFS_STATCNT(afs_RemoveVCB);
+ MObtainWriteLock(&afs_xvcb, 275);
- register int i, j;
- register struct server *tsp;
- register struct afs_cbr *tcbrp;
- struct afs_cbr **lcbrpp;
+ slot = afs_HashCBRFid(&afid->Fid);
+ ncbr = afs_cbrHashT[slot];
- AFS_STATCNT(afs_RemoveVCB);
- MObtainWriteLock(&afs_xvcb,275);
- ObtainReadLock(&afs_xserver);
- for(i=0;i<NSERVERS;i++) {
- for(tsp=afs_servers[i]; tsp; tsp=tsp->next) {
- /* if cell is known, and is wrong, then skip this server */
- if (tsp->cell && tsp->cell->cell != afid->Cell) continue;
-
- /*
- * Otherwise, iterate through file IDs we're sending to the
- * server.
- */
- lcbrpp = &tsp->cbrs; /* first queued return callback */
- for(tcbrp = *lcbrpp; tcbrp; lcbrpp = &tcbrp->next, tcbrp = *lcbrpp) {
- if (afid->Fid.Volume == tcbrp->fid.Volume &&
- afid->Fid.Unique == tcbrp->fid.Unique &&
- afid->Fid.Vnode == tcbrp->fid.Vnode) {
- *lcbrpp = tcbrp->next; /* unthread from list */
- afs_FreeCBR(tcbrp);
- goto done;
- }
- }
+ while (ncbr) {
+ cbr = ncbr;
+ ncbr = cbr->hash_next;
+
+ if (afid->Fid.Volume == cbr->fid.Volume &&
+ afid->Fid.Vnode == cbr->fid.Vnode &&
+ afid->Fid.Unique == cbr->fid.Unique) {
+ afs_FreeCBR(cbr);
}
}
- done:
- ReleaseReadLock(&afs_xserver);
- MReleaseWriteLock(&afs_xvcb);
- return 0;
-
-} /*afs_RemoveVCB*/
+ MReleaseWriteLock(&afs_xvcb);
+}
/*
* afs_NewVCache
* 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,
- afs_int32 lockit, afs_int32 locktype)
+/* LOCK: afs_NewVCache afs_xvcache W */
+struct vcache *
+afs_NewVCache(struct VenusFid *afid, struct server *serverp)
{
struct vcache *tvc;
afs_int32 i;
struct gnode *gnodepnt;
#endif
#ifdef AFS_MACH_ENV
- struct vm_info * vm_info_ptr;
+ struct vm_info *vm_info_ptr;
#endif /* AFS_MACH_ENV */
#ifdef AFS_OSF_ENV
struct vcache *nvc;
-#endif /* AFS_OSF_ENV */
+#endif /* AFS_OSF_ENV */
struct afs_q *tq, *uq;
int code, fv_slept;
AFS_STATCNT(afs_NewVCache);
-#ifdef AFS_LINUX22_ENV
- if (!freeVCList) {
- /* Free some if possible. */
- struct afs_q *tq, *uq;
- int i; char *panicstr;
- int vmax = 2 * afs_cacheStats;
- int vn = VCACHE_FREE;
-
- i = 0;
- for(tq = VLRU.prev; tq != &VLRU && vn > 0; tq = uq) {
- tvc = QTOV(tq);
- uq = QPrev(tq);
- if (tvc->states & CVFlushed)
- refpanic ("CVFlushed on VLRU");
- else if (i++ > vmax)
- refpanic ("Exceeded pool of AFS vnodes(VLRU cycle?)");
- else if (QNext(uq) != tq)
- refpanic ("VLRU inconsistent");
-
- if (tvc == afs_globalVp)
- continue;
-
- if ( VREFCOUNT(tvc) && tvc->opens == 0 ) {
- struct inode *ip = AFSTOI(tvc);
- if (list_empty(&ip->i_dentry)) {
- vn --;
- }
- else {
- struct list_head *cur;
- struct list_head *head = &ip->i_dentry;
- int all = 1;
- restart:
- DLOCK();
- cur = head;
- while ((cur = cur->next) != head) {
- struct dentry *dentry = list_entry(cur, struct dentry, d_alias);
- if (!DCOUNT(dentry)) {
- AFS_GUNLOCK();
- DGET(dentry);
- DUNLOCK();
- d_drop(dentry);
- dput(dentry);
- AFS_GLOCK();
- goto restart;
- }
- else {
- all = 0;
- }
- }
- DUNLOCK();
- if (all) vn --;
- }
- }
- if (tq == uq) break;
- }
- }
-#endif /* AFS_LINUX22_ENV */
#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 (tq == uq)
+ break;
+ }
+ 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++
- and magic up another one */
+ /* XXX instead of panicing, should do afs_maxvcount++
+ * and magic up another one */
}
- }
- }
+ }
+ }
AFS_GUNLOCK();
if (getnewvnode(MOUNT_AFS, &Afs_vnodeops, &nvc)) {
- /* What should we do ???? */
- osi_Panic("afs_NewVCache: no more vnodes");
+ /* What should we do ???? */
+ osi_Panic("afs_NewVCache: no more vnodes");
}
AFS_GLOCK();
tvc = nvc;
- tvc->nextfree = (struct vcache *)0;
+ tvc->nextfree = NULL;
afs_vcount++;
-#else /* AFS_OSF_ENV */
+#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 ((VREFCOUNT(tvc) < DARWIN_REFBASE) ||
+ (VREFCOUNT(tvc) < 1 + DARWIN_REFBASE &&
+ UBCINFOEXISTS(&tvc->v))) {
+ VREFCOUNT_SET(tvc,
+ DARWIN_REFBASE +
+ (UBCINFOEXISTS(&tvc->v) ? 1 : 0));
+ }
+ if (tvc->opens == 0 && ((tvc->states & CUnlinkedDel) == 0)
+ && VREFCOUNT(tvc) == DARWIN_REFBASE + 1
+ && UBCINFOEXISTS(&tvc->v)) {
+ osi_VM_TryReclaim(tvc, &fv_slept);
+ if (fv_slept) {
+ uq = VLRU.prev;
+ i = 0;
+ continue; /* start over - may have raced. */
+ }
+ }
+#elif defined(AFS_LINUX22_ENV)
+ if (tvc != afs_globalVp && VREFCOUNT(tvc) && tvc->opens == 0) {
+ struct dentry *dentry;
+ struct list_head *cur, *head = &(AFSTOI(tvc))->i_dentry;
+ AFS_FAST_HOLD(tvc);
+ AFS_GUNLOCK();
+
+restart:
+#if defined(AFS_LINUX24_ENV)
+ spin_lock(&dcache_lock);
+#endif
+ cur = head;
+ while ((cur = cur->next) != head) {
+ dentry = list_entry(cur, struct dentry, d_alias);
+
+ if (d_unhashed(dentry))
+ continue;
+ dget_locked(dentry);
+
+#if defined(AFS_LINUX24_ENV)
+ spin_unlock(&dcache_lock);
+#endif
+ if (d_invalidate(dentry) == -EBUSY) {
+ dput(dentry);
+ /* perhaps lock and try to continue? (use cur as head?) */
+ goto inuse;
+ }
+ dput(dentry);
+ goto restart;
+ }
+#if defined(AFS_LINUX24_ENV)
+ spin_unlock(&dcache_lock);
+#endif
+ inuse:
+ AFS_GLOCK();
+ AFS_FAST_RELE(tvc);
+ }
+#endif
+
+ if (VREFCOUNT(tvc) ==
#ifdef AFS_DARWIN_ENV
- 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. */
- }
- }
-#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);
- }
- }
- }
-#endif
- if (VREFCOUNT(tvc) == 0 && tvc->opens == 0
- && (tvc->states & CUnlinkedDel) == 0) {
+ DARWIN_REFBASE
+#else
+ 0
+#endif
+ && tvc->opens == 0 && (tvc->states & CUnlinkedDel) == 0) {
+#if defined(AFS_XBSD_ENV)
+ /*
+ * vgone() reclaims the vnode, which calls afs_FlushVCache(),
+ * then it puts the vnode on the free list.
+ * If we don't do this we end up with a cleaned vnode that's
+ * not on the free list.
+ * XXX assume FreeBSD is the same for now.
+ */
+ vgone(AFSTOV(tvc));
+ code = fv_slept = 0;
+#else
code = afs_FlushVCache(tvc, &fv_slept);
+#endif
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) {
/* 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));
-#ifdef AFS_AIX32_ENV
+ tvc = (struct vcache *)afs_osi_Alloc(sizeof(struct vcache));
+#ifdef KERNEL_HAVE_PIN
pin((char *)tvc, sizeof(struct vcache)); /* XXX */
#endif
#ifdef AFS_MACH_ENV
*/
#endif /* AFS_MACH_ENV */
#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));
+ {
+ 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));
+ 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));
+ initnlock(&tvc->v.v_lock,
+ makesname(name, "vlk", tvc->v.v_number));
#endif
}
#endif /* AFS_SGI_ENV */
- }
- else {
- tvc = freeVCList; /* take from free list */
+ } else {
+ tvc = freeVCList; /* take from free list */
freeVCList = tvc->nextfree;
- tvc->nextfree = (struct vcache *)0;
+ tvc->nextfree = NULL;
}
-#endif /* AFS_OSF_ENV */
+#endif /* AFS_OSF_ENV */
#ifdef AFS_MACH_ENV
vm_info_ptr = tvc->v.v_vm_info;
#endif /* AFS_MACH_ENV */
+#if defined(AFS_XBSD_ENV)
+ if (tvc->v)
+ panic("afs_NewVCache(): free vcache with vnode attached");
+#endif
+
#if !defined(AFS_SGI_ENV) && !defined(AFS_OSF_ENV)
memset((char *)tvc, 0, sizeof(struct vcache));
#else
tvc->v.v_vm_info = vm_info_ptr;
tvc->v.v_vm_info->pager = MEMORY_OBJECT_NULL;
#endif /* AFS_MACH_ENV */
+#ifdef AFS_OBSD_ENV
+ AFS_GUNLOCK();
+ afs_nbsd_getnewvnode(tvc); /* includes one refcount */
+ AFS_GLOCK();
+ lockinit(&tvc->rwlock, PINOD, "vcache", 0, 0);
+#endif
+#ifdef AFS_FBSD_ENV
+ {
+ struct vnode *vp;
+
+ AFS_GUNLOCK();
+#ifdef AFS_FBSD50_ENV
+ if (getnewvnode(MOUNT_AFS, afs_globalVFS, afs_vnodeop_p, &vp))
+#else
+ if (getnewvnode(VT_AFS, afs_globalVFS, afs_vnodeop_p, &vp))
+#endif
+ panic("afs getnewvnode"); /* can't happen */
+ AFS_GLOCK();
+ if (tvc->v != NULL) {
+ /* I'd like to know if this ever happens...
+ * We don't drop global for the rest of this function,
+ * so if we do lose the race, the other thread should
+ * have found the same vnode and finished initializing
+ * the vcache entry. Is it conceivable that this vcache
+ * entry could be recycled during this interval? If so,
+ * then there probably needs to be some sort of additional
+ * mutual exclusion (an Embryonic flag would suffice).
+ * -GAW */
+ printf("afs_NewVCache: lost the race\n");
+ return (tvc);
+ }
+ tvc->v = vp;
+ tvc->v->v_data = tvc;
+ lockinit(&tvc->rwlock, PINOD, "vcache", 0, 0);
+ }
+#endif
tvc->parentVnode = 0;
- tvc->mvid = (struct VenusFid *) 0;
- tvc->linkData = (char *) 0;
+ tvc->mvid = NULL;
+ tvc->linkData = NULL;
tvc->cbExpires = 0;
tvc->opens = 0;
tvc->execsOrWriters = 0;
tvc->vc_error = 0;
afs_symhint_inval(tvc);
#ifdef AFS_TEXT_ENV
- tvc->flushDV.low = tvc->flushDV.high = AFS_MAXDV;
+ 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 */
+ hzero(tvc->m.DataVersion); /* in case we copy it into flushDV */
+#if defined(AFS_LINUX22_ENV)
+ {
+ struct inode *ip = AFSTOI(tvc);
+#if defined(AFS_LINUX24_ENV)
+ struct address_space *mapping = &ip->i_data;
+#endif
+
+#if defined(AFS_LINUX26_ENV)
+ inode_init_once(ip);
+#else
+ sema_init(&ip->i_sem, 1);
+ INIT_LIST_HEAD(&ip->i_hash);
+ INIT_LIST_HEAD(&ip->i_dentry);
+#if defined(AFS_LINUX24_ENV)
+ sema_init(&ip->i_zombie, 1);
+ init_waitqueue_head(&ip->i_wait);
+ spin_lock_init(&ip->i_data.i_shared_lock);
+#ifdef STRUCT_ADDRESS_SPACE_HAS_PAGE_LOCK
+ spin_lock_init(&ip->i_data.page_lock);
+#endif
+ INIT_LIST_HEAD(&ip->i_data.clean_pages);
+ INIT_LIST_HEAD(&ip->i_data.dirty_pages);
+ INIT_LIST_HEAD(&ip->i_data.locked_pages);
+ INIT_LIST_HEAD(&ip->i_dirty_buffers);
+#ifdef STRUCT_INODE_HAS_I_DIRTY_DATA_BUFFERS
+ INIT_LIST_HEAD(&ip->i_dirty_data_buffers);
+#endif
+#ifdef STRUCT_INODE_HAS_I_DEVICES
+ INIT_LIST_HEAD(&ip->i_devices);
+#endif
+#ifdef STRUCT_INODE_HAS_I_TRUNCATE_SEM
+ init_rwsem(&ip->i_truncate_sem);
+#endif
+#ifdef STRUCT_INODE_HAS_I_ALLOC_SEM
+ init_rwsem(&ip->i_alloc_sem);
+#endif
+
+#else /* AFS_LINUX22_ENV */
+ sema_init(&ip->i_atomic_write, 1);
+ init_waitqueue(&ip->i_wait);
+#endif
+#endif
+
+#if defined(AFS_LINUX24_ENV)
+ mapping->host = ip;
+ ip->i_mapping = mapping;
+#ifdef STRUCT_ADDRESS_SPACE_HAS_GFP_MASK
+ ip->i_data.gfp_mask = GFP_HIGHUSER;
+#endif
+#if defined(AFS_LINUX26_ENV)
+ mapping_set_gfp_mask(mapping, GFP_HIGHUSER);
+ {
+ extern struct backing_dev_info afs_backing_dev_info;
+
+ mapping->backing_dev_info = &afs_backing_dev_info;
+ }
+#endif
+#endif
+
+#if !defined(AFS_LINUX26_ENV)
+ if (afs_globalVFS)
+ ip->i_dev = afs_globalVFS->s_dev;
+#else
+#ifdef STRUCT_INODE_HAS_I_SECURITY
+ ip->i_security = NULL;
+ if (security_inode_alloc(ip))
+ panic("Cannot allocate inode security");
+#endif
+#endif
+ ip->i_sb = afs_globalVFS;
+ put_inode_on_dummy_list(ip);
+#ifdef STRUCT_INODE_HAS_I_SB_LIST
+ list_add(&ip->i_sb_list, &ip->i_sb->s_inodes);
+#endif
+ }
+#endif
+
#ifdef AFS_OSF_ENV
/* Hold it for the LRU (should make count 2) */
VN_HOLD(AFSTOV(tvc));
-#else /* AFS_OSF_ENV */
+#else /* AFS_OSF_ENV */
+#if !defined(AFS_XBSD_ENV)
VREFCOUNT_SET(tvc, 1); /* us */
-#endif /* AFS_OSF_ENV */
+#endif /* AFS_XBSD_ENV */
+#endif /* AFS_OSF_ENV */
#ifdef AFS_AIX32_ENV
LOCK_INIT(&tvc->pvmlock, "vcache pvmlock");
tvc->vmh = tvc->segid = NULL;
rw_init(&tvc->rwlock, "vcache rwlock", RW_DEFAULT, NULL);
#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
- ** 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
- ** then the system panics. The value of the v_data field
- ** is not really important for AFS vnodes because the kernel
- ** does not do asynchronous io for regular files. Hence,
- ** for the time being, we fill up the v_data field with the
- ** vnode pointer itself. */
+ /* 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
+ ** 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
+ ** then the system panics. The value of the v_data field
+ ** is not really important for AFS vnodes because the kernel
+ ** does not do asynchronous io for regular files. Hence,
+ ** for the time being, we fill up the v_data field with the
+ ** vnode pointer itself. */
tvc->v.v_data = (char *)tvc;
#endif /* AFS_SUN55_ENV */
#endif
tvc->Access = NULL;
tvc->callback = serverp; /* to minimize chance that clear
- request is lost */
+ * request is lost */
/* initialize vnode data, note vrefCount is v.v_count */
#ifdef AFS_AIX_ENV
/* Don't forget to free the gnode space */
- tvc->v.v_gnode = gnodepnt = (struct gnode *) osi_AllocSmallSpace(sizeof(struct gnode));
+ tvc->v.v_gnode = gnodepnt =
+ (struct gnode *)osi_AllocSmallSpace(sizeof(struct gnode));
memset((char *)gnodepnt, 0, sizeof(struct gnode));
#endif
#ifdef AFS_SGI64_ENV
- memset((void*)&(tvc->vc_bhv_desc), 0, sizeof(tvc->vc_bhv_desc));
+ memset((void *)&(tvc->vc_bhv_desc), 0, sizeof(tvc->vc_bhv_desc));
bhv_desc_init(&(tvc->vc_bhv_desc), tvc, tvc, &Afs_vnodeops);
#ifdef AFS_SGI65_ENV
vn_bhv_head_init(&(tvc->v.v_bh), "afsvp");
bhv_insert_initial(&(tvc->v.v_bh), &(tvc->vc_bhv_desc));
#endif
#ifdef AFS_SGI65_ENV
- tvc->v.v_mreg = tvc->v.v_mregb = (struct pregion*)tvc;
+ tvc->v.v_mreg = tvc->v.v_mregb = (struct pregion *)tvc;
#ifdef VNODE_TRACING
tvc->v.v_trace = ktrace_alloc(VNODE_TRACE_SIZE, 0);
#endif
init_bitlock(&(tvc->v.v_flag, VLOCK, "vnode", tvc->v.v_number);
#endif
#ifdef INTR_KTHREADS
- AFS_VN_INIT_BUF_LOCK(&(tvc->v));
+ AFS_VN_INIT_BUF_LOCK(&(tvc->v));
#endif
#else
SetAfsVnode(AFSTOV(tvc));
#ifdef AFS_DARWIN_ENV
tvc->v.v_ubcinfo = UBC_INFO_NULL;
lockinit(&tvc->rwlock, PINOD, "vcache rwlock", 0, 0);
- cache_purge(AFSTOV(tvc));
- tvc->v.v_data=tvc;
- tvc->v.v_tag=VT_AFS;
+ 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
-#ifdef AFS_FBSD_ENV
- lockinit(&tvc->rwlock, PINOD, "vcache rwlock", 0, 0);
- 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 */
- /* This extra ref is dealt with above... */
+ tvc->v.v_freelist.tqe_next = 0;
+ tvc->v.v_freelist.tqe_prev = (struct vnode **)0xdeadb;
+ tvc->vrefCount += DARWIN_REFBASE;
#endif
/*
* 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;
- if (afs_globalVFS == 0) osi_Panic("afs globalvfs");
+ tvc->mvstat = 2;
+ if (afs_globalVFS == 0)
+ osi_Panic("afs globalvfs");
vSetVfsp(tvc, afs_globalVFS);
vSetType(tvc, VREG);
#ifdef AFS_AIX_ENV
- tvc->v.v_vfsnext = afs_globalVFS->vfs_vnodes; /* link off vfs */
+ tvc->v.v_vfsnext = afs_globalVFS->vfs_vnodes; /* link off vfs */
tvc->v.v_vfsprev = NULL;
afs_globalVFS->vfs_vnodes = &tvc->v;
if (tvc->v.v_vfsnext != NULL)
tvc->v.v_vfsnext->v_vfsprev = &tvc->v;
- tvc->v.v_next = gnodepnt->gn_vnode; /*Single vnode per gnode for us!*/
+ tvc->v.v_next = gnodepnt->gn_vnode; /*Single vnode per gnode for us! */
gnodepnt->gn_vnode = &tvc->v;
#endif
#ifdef AFS_DEC_ENV
#ifdef AFS_OSF_ENV
/* Is this needed??? */
insmntque(tvc, afs_globalVFS);
-#endif /* AFS_OSF_ENV */
-#endif /* AFS_DUX40_ENV */
+#endif /* AFS_OSF_ENV */
+#endif /* AFS_DUX40_ENV */
#if defined(AFS_SGI_ENV)
- VN_SET_DPAGES(&(tvc->v), (struct pfdat*)NULL);
+ VN_SET_DPAGES(&(tvc->v), (struct pfdat *)NULL);
osi_Assert((tvc->v.v_flag & VINACT) == 0);
tvc->v.v_flag = 0;
osi_Assert(VN_GET_PGCNT(&(tvc->v)) == 0);
vn_initlist((struct vnlist *)&tvc->v);
tvc->lastr = 0;
#endif /* AFS_SGI_ENV */
-#if defined(AFS_LINUX22_ENV)
- {
- struct inode *ip = AFSTOI(tvc);
- sema_init(&ip->i_sem, 1);
-#if defined(AFS_LINUX24_ENV)
- sema_init(&ip->i_zombie, 1);
- init_waitqueue_head(&ip->i_wait);
- spin_lock_init(&ip->i_data.i_shared_lock);
-#ifdef STRUCT_ADDRESS_SPACE_HAS_PAGE_LOCK
- spin_lock_init(&ip->i_data.page_lock);
-#endif
- INIT_LIST_HEAD(&ip->i_data.clean_pages);
- INIT_LIST_HEAD(&ip->i_data.dirty_pages);
- INIT_LIST_HEAD(&ip->i_data.locked_pages);
- INIT_LIST_HEAD(&ip->i_dirty_buffers);
-#ifdef STRUCT_INODE_HAS_I_DIRTY_DATA_BUFFERS
- INIT_LIST_HEAD(&ip->i_dirty_data_buffers);
-#endif
-#ifdef STRUCT_INODE_HAS_I_DEVICES
- INIT_LIST_HEAD(&ip->i_devices);
-#endif
- ip->i_data.host = (void*) ip;
- ip->i_mapping = &ip->i_data;
-#ifdef STRUCT_INODE_HAS_I_TRUNCATE_SEM
- init_rwsem(&ip->i_truncate_sem);
-#endif
-#else
- sema_init(&ip->i_atomic_write, 1);
- init_waitqueue(&ip->i_wait);
-#endif
- INIT_LIST_HEAD(&ip->i_hash);
- INIT_LIST_HEAD(&ip->i_dentry);
- if (afs_globalVFS) {
- ip->i_dev = afs_globalVFS->s_dev;
- ip->i_sb = afs_globalVFS;
- }
- }
-#endif
tvc->h1.dchint = 0;
- osi_dnlc_purgedp(tvc); /* this may be overkill */
+ osi_dnlc_purgedp(tvc); /* this may be overkill */
memset((char *)&(tvc->quick), 0, sizeof(struct vtodc));
memset((char *)&(tvc->callsort), 0, sizeof(struct afs_q));
- tvc->slocks = (struct SimpleLocks *)0;
+ tvc->slocks = NULL;
i = VCHash(afid);
tvc->hnext = afs_vhashT[i];
afs_vhashT[i] = tvc;
if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("NewVCache VLRU inconsistent");
+ refpanic("NewVCache VLRU inconsistent");
}
- QAdd(&VLRU, &tvc->vlruq); /* put in lruq */
+ QAdd(&VLRU, &tvc->vlruq); /* put in lruq */
if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("NewVCache VLRU inconsistent2");
+ refpanic("NewVCache VLRU inconsistent2");
}
if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic ("NewVCache VLRU inconsistent3");
+ refpanic("NewVCache VLRU inconsistent3");
}
if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic ("NewVCache VLRU inconsistent4");
+ refpanic("NewVCache VLRU inconsistent4");
}
vcachegen++;
return tvc;
-} /*afs_NewVCache*/
+} /*afs_NewVCache */
/*
*/
/* LOCK: afs_FlushActiveVcaches afs_xvcache N */
void
-afs_FlushActiveVcaches(doflocks)
- register afs_int32 doflocks;
-
-{ /*afs_FlushActiveVcaches*/
-
+afs_FlushActiveVcaches(register afs_int32 doflocks)
+{
register struct vcache *tvc;
register int i;
register struct conn *tc;
register afs_int32 code;
- register struct AFS_UCRED *cred;
+ register struct AFS_UCRED *cred = NULL;
struct vrequest treq, ureq;
struct AFSVolSync tsync;
int didCore;
- XSTATS_DECLS
-
+ XSTATS_DECLS;
AFS_STATCNT(afs_FlushActiveVcaches);
ObtainReadLock(&afs_xvcache);
- for(i=0;i<VCSIZE;i++) {
- for(tvc = afs_vhashT[i]; tvc; tvc=tvc->hnext) {
+ for (i = 0; i < VCSIZE; i++) {
+ for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if (doflocks && tvc->flockCount != 0) {
/* if this entry has an flock, send a keep-alive call out */
- osi_vnhold(tvc, 0);
+ osi_vnhold(tvc, 0);
ReleaseReadLock(&afs_xvcache);
- ObtainWriteLock(&tvc->lock,51);
+ ObtainWriteLock(&tvc->lock, 51);
do {
- afs_InitReq(&treq, &afs_osi_cred);
+ afs_InitReq(&treq, afs_osi_credp);
treq.flags |= O_NONBLOCK;
tc = afs_Conn(&tvc->fid, &treq, SHARED_LOCK);
if (tc) {
- XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_EXTENDLOCK);
- RX_AFS_GUNLOCK();
- code =
+ XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_EXTENDLOCK);
+ RX_AFS_GUNLOCK();
+ code =
RXAFS_ExtendLock(tc->id,
- (struct AFSFid *) &tvc->fid.Fid,
+ (struct AFSFid *)&tvc->fid.Fid,
&tsync);
- RX_AFS_GLOCK();
- XSTATS_END_TIME;
- }
- else code = -1;
- } while
- (afs_Analyze(tc, code, &tvc->fid, &treq,
- AFS_STATS_FS_RPCIDX_EXTENDLOCK,
- SHARED_LOCK, (struct cell *)0));
+ RX_AFS_GLOCK();
+ XSTATS_END_TIME;
+ } else
+ code = -1;
+ } while (afs_Analyze
+ (tc, code, &tvc->fid, &treq,
+ AFS_STATS_FS_RPCIDX_EXTENDLOCK, SHARED_LOCK, NULL));
ReleaseWriteLock(&tvc->lock);
ObtainReadLock(&afs_xvcache);
* 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)
* That's because if we come in via the CUnlinkedDel bit state path we'll be have 0 refcnt
*/
osi_Assert(VREFCOUNT(tvc) > 0);
- AFS_RWLOCK((vnode_t *)tvc, VRWLOCK_WRITE);
+ AFS_RWLOCK((vnode_t *) tvc, VRWLOCK_WRITE);
#endif
- ObtainWriteLock(&tvc->lock,52);
+ ObtainWriteLock(&tvc->lock, 52);
if (tvc->states & CCore) {
tvc->states &= ~CCore;
/* XXXX Find better place-holder for cred XXXX */
- cred = (struct AFS_UCRED *) tvc->linkData;
- tvc->linkData = (char *) 0; /* XXX */
+ cred = (struct AFS_UCRED *)tvc->linkData;
+ tvc->linkData = NULL; /* XXX */
afs_InitReq(&ureq, cred);
afs_Trace2(afs_iclSetp, CM_TRACE_ACTCCORE,
- ICL_TYPE_POINTER, tvc,
- ICL_TYPE_INT32, tvc->execsOrWriters);
+ ICL_TYPE_POINTER, tvc, 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)
- AFS_RWUNLOCK((vnode_t *)tvc, VRWLOCK_WRITE);
+ AFS_RWUNLOCK((vnode_t *) tvc, VRWLOCK_WRITE);
#endif
afs_remunlink(tvc, 0);
#if defined(AFS_SGI_ENV)
- AFS_RWLOCK((vnode_t *)tvc, VRWLOCK_WRITE);
+ AFS_RWLOCK((vnode_t *) tvc, VRWLOCK_WRITE);
#endif
- }
- else {
+ } else {
/* lost (or won, perhaps) the race condition */
ReleaseWriteLock(&tvc->lock);
#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
#endif
}
#if defined(AFS_SGI_ENV)
- AFS_RWUNLOCK((vnode_t *)tvc, VRWLOCK_WRITE);
+ AFS_RWUNLOCK((vnode_t *) tvc, VRWLOCK_WRITE);
#endif
ObtainReadLock(&afs_xvcache);
AFS_FAST_RELE(tvc);
/* 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");
- osi_VM_TryReclaim(tvc,0);
+ if (VREFCOUNT(tvc) == 1 + DARWIN_REFBASE
+ && UBCINFOEXISTS(&tvc->v)) {
+ if (tvc->opens)
+ panic("flushactive open, hasubc, but refcnt 1");
+ osi_VM_TryReclaim(tvc, 0);
}
#endif
}
}
ReleaseReadLock(&afs_xvcache);
-
-} /*afs_FlushActiveVcaches*/
+}
/*
*
* 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:
* areq : ???
*/
-int afs_VerifyVCache2(struct vcache *avc, struct vrequest *areq)
+int
+afs_VerifyVCache2(struct vcache *avc, struct vrequest *areq)
{
register struct vcache *tvc;
#if defined(AFS_OSF_ENV)
ObtainReadLock(&avc->lock);
if (afs_IsWired(avc)) {
- ReleaseReadLock(&avc->lock);
- return 0;
+ ReleaseReadLock(&avc->lock);
+ return 0;
}
ReleaseReadLock(&avc->lock);
#endif /* AFS_OSF_ENV */
/* otherwise we must fetch the status info */
- ObtainWriteLock(&avc->lock,53);
+ ObtainWriteLock(&avc->lock, 53);
if (avc->states & CStatd) {
ReleaseWriteLock(&avc->lock);
return 0;
}
ObtainWriteLock(&afs_xcbhash, 461);
- avc->states &= ~( CStatd | CUnique );
- avc->callback = (struct server *)0;
+ 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))
- osi_dnlc_purgedp (avc);
+ if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ osi_dnlc_purgedp(avc);
else
- osi_dnlc_purgevp (avc);
-
+ osi_dnlc_purgevp(avc);
+
/* fetch the status info */
- tvc = afs_GetVCache(&avc->fid, areq, (afs_int32*)0, avc, READ_LOCK);
- if (!tvc) return ENOENT;
+ tvc = afs_GetVCache(&avc->fid, areq, NULL, avc);
+ if (!tvc)
+ return ENOENT;
/* Put it back; caller has already incremented vrefCount */
- afs_PutVCache(tvc, READ_LOCK);
+ afs_PutVCache(tvc);
return 0;
-} /*afs_VerifyVCache*/
+} /*afs_VerifyVCache */
/*
* Callers: as of 1992-04-29, only called by WriteVCache
*/
static void
-afs_SimpleVStat(avc, astat, areq)
- register struct vcache *avc;
- register struct AFSFetchStatus *astat;
- struct vrequest *areq;
-{ /*afs_SimpleVStat*/
-
+afs_SimpleVStat(register struct vcache *avc,
+ register struct AFSFetchStatus *astat, struct vrequest *areq)
+{
afs_size_t length;
AFS_STATCNT(afs_SimpleVStat);
#ifdef AFS_SGI_ENV
if ((avc->execsOrWriters <= 0) && !afs_DirtyPages(avc)
- && !AFS_VN_MAPPED((vnode_t*)avc))
+ && !AFS_VN_MAPPED((vnode_t *) avc)) {
#else
- if ((avc->execsOrWriters <= 0) && !afs_DirtyPages(avc))
+ if ((avc->execsOrWriters <= 0) && !afs_DirtyPages(avc)) {
#endif
-
- {
-#ifdef AFS_64BIT_ClIENT
- FillInt64(length, astat->Length_hi, astat->Length);
+#ifdef AFS_64BIT_CLIENT
+ FillInt64(length, astat->Length_hi, astat->Length);
#else /* AFS_64BIT_CLIENT */
- length = astat->Length;
+ length = astat->Length;
#endif /* AFS_64BIT_CLIENT */
#if defined(AFS_SGI_ENV)
- osi_Assert((valusema(&avc->vc_rwlock) <= 0) &&
- (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();
- PTOSSVP(vp, (off_t)length, (off_t)MAXLONG);
- AFS_GLOCK();
- ObtainWriteLock(&avc->lock,67);
- }
-#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(length));
- avc->m.Length = length;
- avc->m.Date = astat->ClientModTime;
+ osi_Assert((valusema(&avc->vc_rwlock) <= 0)
+ && (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();
+ PTOSSVP(vp, (off_t) length, (off_t) MAXLONG);
+ AFS_GLOCK();
+ ObtainWriteLock(&avc->lock, 67);
}
+#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(length));
+ avc->m.Length = length;
+ avc->m.Date = astat->ClientModTime;
+ }
avc->m.Owner = astat->Owner;
avc->m.Group = astat->Group;
avc->m.Mode = astat->UnixModeBits;
if (vType(avc) == VREG) {
avc->m.Mode |= S_IFREG;
- }
- else if (vType(avc) == VDIR) {
+ } else if (vType(avc) == VDIR) {
avc->m.Mode |= S_IFDIR;
- }
- else if (vType(avc) == VLNK) {
-
-
-
+ } else if (vType(avc) == VLNK) {
avc->m.Mode |= S_IFLNK;
- if ((avc->m.Mode & 0111) == 0) avc->mvstat = 1;
+ if ((avc->m.Mode & 0111) == 0)
+ avc->mvstat = 1;
}
if (avc->states & CForeign) {
- struct axscache *ac;
+ struct axscache *ac;
avc->anyAccess = astat->AnonymousAccess;
#ifdef badidea
- 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
- * 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
- * in order to create magic mode bits that vary according to who makes
- * the call. In other words, _every_ stat() generates a test for
- * writeability...
- */
+ 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
+ * 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
+ * in order to create magic mode bits that vary according to who makes
+ * the call. In other words, _every_ stat() generates a test for
+ * writeability...
+ */
#endif /* badidea */
- if (avc->Access && (ac = afs_FindAxs(avc->Access, areq->uid)))
- ac->axess = astat->CallerAccess;
- else /* not found, add a new one if possible */
- afs_AddAxs(avc->Access, areq->uid, astat->CallerAccess);
+ if (avc->Access && (ac = afs_FindAxs(avc->Access, areq->uid)))
+ ac->axess = astat->CallerAccess;
+ else /* not found, add a new one if possible */
+ afs_AddAxs(avc->Access, areq->uid, astat->CallerAccess);
}
-} /*afs_SimpleVStat*/
+} /*afs_SimpleVStat */
/*
* Must be called with a shared lock held on the vnode.
*/
-afs_WriteVCache(avc, astatus, areq)
- register struct vcache *avc;
- register struct AFSStoreStatus *astatus;
- struct vrequest *areq;
-
-{ /*afs_WriteVCache*/
- afs_int32 code;
- struct conn *tc;
+int
+afs_WriteVCache(register struct vcache *avc,
+ register struct AFSStoreStatus *astatus,
+ struct vrequest *areq)
+{
+ afs_int32 code;
+ struct conn *tc;
struct AFSFetchStatus OutStatus;
struct AFSVolSync tsync;
- XSTATS_DECLS
-
+ 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));
do {
tc = afs_Conn(&avc->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,
- 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,
- SHARED_LOCK, (struct cell *)0));
+ XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STORESTATUS);
+ RX_AFS_GUNLOCK();
+ code =
+ RXAFS_StoreStatus(tc->id, (struct AFSFid *)&avc->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,
+ SHARED_LOCK, NULL));
- UpgradeSToWLock(&avc->lock,20);
+ UpgradeSToWLock(&avc->lock, 20);
if (code == 0) {
/* success, do the changes locally */
afs_SimpleVStat(avc, &OutStatus, areq);
* over a file being written.
*/
avc->m.Date = OutStatus.ClientModTime;
- }
- else {
+ } 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 */
+ afs_DequeueCallback(avc);
+ avc->states &= ~(CStatd | CUnique); /* turn off stat valid flag */
ReleaseWriteLock(&afs_xcbhash);
- if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (avc); /* if it (could be) a directory */
+ if ((avc->states & CForeign) || (avc->fid.Fid.Vnode & 1))
+ osi_dnlc_purgedp(avc); /* if it (could be) a directory */
}
ConvertWToSLock(&avc->lock);
return code;
-} /*afs_WriteVCache*/
+} /*afs_WriteVCache */
/*
* afs_ProcessFS
* it sufficiently to be certain that it is adequate.
*/
void
-afs_ProcessFS(avc, astat, areq)
- register struct vcache *avc;
- struct vrequest *areq;
- register struct AFSFetchStatus *astat;
-
-{ /*afs_ProcessFS*/
-
- register int i;
+afs_ProcessFS(register struct vcache *avc,
+ register struct AFSFetchStatus *astat, struct vrequest *areq)
+{
afs_size_t length;
AFS_STATCNT(afs_ProcessFS);
* also need to change the conditional in afs_DoBulkStat. */
#ifdef AFS_SGI_ENV
if ((avc->execsOrWriters <= 0) && !afs_DirtyPages(avc)
- && !AFS_VN_MAPPED((vnode_t*)avc))
+ && !AFS_VN_MAPPED((vnode_t *) avc)) {
#else
- if ((avc->execsOrWriters <= 0) && !afs_DirtyPages(avc))
+ if ((avc->execsOrWriters <= 0) && !afs_DirtyPages(avc)) {
#endif
- {
- /* if we're writing or mapping this file, don't fetch over these
- * 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(length));
- avc->m.Length = length;
- avc->m.Date = astat->ClientModTime;
- }
+ /* if we're writing or mapping this file, don't fetch over these
+ * 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(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;
if (astat->FileType == File) {
vSetType(avc, VREG);
avc->m.Mode |= S_IFREG;
- }
- else if (astat->FileType == Directory) {
+ } else if (astat->FileType == Directory) {
vSetType(avc, VDIR);
avc->m.Mode |= S_IFDIR;
- }
- else if (astat->FileType == SymbolicLink) {
- vSetType(avc, VLNK);
- avc->m.Mode |= S_IFLNK;
- if ((avc->m.Mode & 0111) == 0) avc->mvstat = 1;
+ } else if (astat->FileType == SymbolicLink) {
+ if (afs_fakestat_enable && (avc->m.Mode & 0111) == 0) {
+ vSetType(avc, VDIR);
+ avc->m.Mode |= S_IFDIR;
+ } else {
+ vSetType(avc, VLNK);
+ avc->m.Mode |= S_IFLNK;
+ }
+ if ((avc->m.Mode & 0111) == 0) {
+ avc->mvstat = 1;
+ }
}
avc->anyAccess = astat->AnonymousAccess;
#ifdef badidea
- 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
- * 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
- * in order to create magic mode bits that vary according to who makes
- * the call. In other words, _every_ stat() generates a test for
- * writeability...
- */
+ 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
+ * 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
+ * in order to create magic mode bits that vary according to who makes
+ * the call. In other words, _every_ stat() generates a test for
+ * writeability...
+ */
#endif /* badidea */
- {
+ {
struct axscache *ac;
if (avc->Access && (ac = afs_FindAxs(avc->Access, areq->uid)))
- ac->axess = astat->CallerAccess;
- else /* not found, add a new one if possible */
- afs_AddAxs(avc->Access, areq->uid, astat->CallerAccess);
- }
-
+ ac->axess = astat->CallerAccess;
+ else /* not found, add a new one if possible */
+ afs_AddAxs(avc->Access, areq->uid, astat->CallerAccess);
+ }
#ifdef AFS_LINUX22_ENV
- vcache2inode(avc); /* Set the inode attr cache */
+ vcache2inode(avc); /* Set the inode attr cache */
+#endif
+#ifdef AFS_DARWIN_ENV
+ osi_VM_Setup(avc, 1);
#endif
-} /*afs_ProcessFS*/
+} /*afs_ProcessFS */
-afs_RemoteLookup(afid, areq, name, nfid, OutStatusp, CallBackp, serverp, tsyncp)
- register struct VenusFid *afid;
- struct vrequest *areq;
- char *name;
- struct VenusFid *nfid;
- struct AFSFetchStatus *OutStatusp;
- struct AFSCallBack *CallBackp;
- struct server **serverp;
- struct AFSVolSync *tsyncp;
+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, i;
- register struct vcache *tvc;
- struct volume *tvp;
+ afs_int32 code;
afs_uint32 start;
register struct conn *tc;
struct AFSFetchStatus OutDirStatus;
- XSTATS_DECLS
-
- if (!name) name = ""; /* XXX */
+ XSTATS_DECLS;
+ if (!name)
+ name = ""; /* XXX */
do {
tc = afs_Conn(afid, areq, SHARED_LOCK);
if (tc) {
- if (serverp) *serverp = tc->srvr->server;
+ if (serverp)
+ *serverp = tc->srvr->server;
start = osi_Time();
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,
- OutStatusp, &OutDirStatus, CallBackp, tsyncp);
+ code =
+ RXAFS_Lookup(tc->id, (struct AFSFid *)&afid->Fid, name,
+ (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,
- AFS_STATS_FS_RPCIDX_XLOOKUP,
- SHARED_LOCK, (struct cell *)0));
+ } while (afs_Analyze
+ (tc, code, afid, areq, AFS_STATS_FS_RPCIDX_XLOOKUP, SHARED_LOCK,
+ NULL));
return code;
}
* 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
* locking directories in a constant order.
* NB. NewVCache -> FlushVCache presently (4/10/95) drops the xvcache lock.
*/
-struct vcache *afs_GetVCache(afid, areq, cached, avc, locktype)
- register struct VenusFid *afid;
- struct vrequest *areq;
- afs_int32 *cached;
- afs_int32 locktype;
- struct vcache *avc; /* might have a vcache structure already, which must
- * already be held by the caller */
-{ /*afs_GetVCache*/
-
- afs_int32 code, i, newvcache=0;
+ /* 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)
+{
+
+ afs_int32 code, newvcache = 0;
register struct vcache *tvc;
struct volume *tvp;
afs_int32 retry;
AFS_STATCNT(afs_GetVCache);
- if (cached) *cached = 0; /* Init just in case */
+ if (cached)
+ *cached = 0; /* Init just in case */
+
+#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
+ loop:
+#endif
-loop:
- ObtainSharedLock(&afs_xvcache,5);
+ ObtainSharedLock(&afs_xvcache, 5);
- tvc = afs_FindVCache(afid, 0, 0, &retry, DO_STATS | DO_VLRU );
+ tvc = afs_FindVCache(afid, &retry, DO_STATS | DO_VLRU);
if (tvc && retry) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
ReleaseSharedLock(&afs_xvcache);
spunlock_psema(tvc->v.v_lock, retry, &tvc->v.v_sync, PINOD);
goto loop;
#endif
- }
-
- if (tvc) {
- if (cached)
- *cached = 1;
- if (tvc->states & CStatd) {
- ReleaseSharedLock(&afs_xvcache);
- return tvc;
- }
}
- else {
- UpgradeSToWLock(&afs_xvcache,21);
+
+ if (tvc) {
+ if (cached)
+ *cached = 1;
+ if (tvc->states & CStatd) {
+ ReleaseSharedLock(&afs_xvcache);
+ return tvc;
+ }
+ } else {
+ UpgradeSToWLock(&afs_xvcache, 21);
/* no cache entry, better grab one */
- tvc = afs_NewVCache(afid, (struct server *)0, 1, WRITE_LOCK);
+ tvc = afs_NewVCache(afid, NULL);
newvcache = 1;
ConvertWToSLock(&afs_xvcache);
ReleaseSharedLock(&afs_xvcache);
- ObtainWriteLock(&tvc->lock,54);
+ ObtainWriteLock(&tvc->lock, 54);
if (tvc->states & CStatd) {
#ifdef AFS_LINUX22_ENV
#endif
ReleaseWriteLock(&tvc->lock);
#ifdef AFS_DARWIN_ENV
- osi_VM_Setup(tvc);
+ osi_VM_Setup(tvc, 0);
#endif
return tvc;
}
-
#if defined(AFS_OSF_ENV)
- if (afs_IsWired(tvc)) {
- ReleaseWriteLock(&tvc->lock);
- return tvc;
- }
+ if (afs_IsWired(tvc)) {
+ ReleaseWriteLock(&tvc->lock);
+ return tvc;
+ }
#endif /* AFS_OSF_ENV */
+#ifdef AFS_OBSD_ENV
+ VOP_LOCK(AFSTOV(tvc), LK_EXCLUSIVE | LK_RETRY, curproc);
+ uvm_vnp_uncache(AFSTOV(tvc));
+ VOP_UNLOCK(AFSTOV(tvc), 0, curproc);
+#endif
+#ifdef AFS_FBSD_ENV
+ /*
+ * XXX - I really don't like this. Should try to understand better.
+ * It seems that sometimes, when we get called, we already hold the
+ * lock on the vnode (e.g., from afs_getattr via afs_VerifyVCache).
+ * We can't drop the vnode lock, because that could result in a race.
+ * Sometimes, though, we get here and don't hold the vnode lock.
+ * I hate code paths that sometimes hold locks and sometimes don't.
+ * In any event, the dodge we use here is to check whether the vnode
+ * is locked, and if it isn't, then we gain and drop it around the call
+ * to vinvalbuf; otherwise, we leave it alone.
+ */
+ {
+ struct vnode *vp;
+ int iheldthelock;
+
+ vp = AFSTOV(tvc);
+#ifdef AFS_FBSD50_ENV
+ iheldthelock = VOP_ISLOCKED(vp, curthread);
+ if (!iheldthelock)
+ vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, curthread);
+ vinvalbuf(vp, V_SAVE, osi_curcred(), curthread, PINOD, 0);
+ if (!iheldthelock)
+ VOP_UNLOCK(vp, LK_EXCLUSIVE, curthread);
+#else
+ iheldthelock = VOP_ISLOCKED(vp, curproc);
+ if (!iheldthelock)
+ vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, curproc);
+ vinvalbuf(vp, V_SAVE, osi_curcred(), curproc, PINOD, 0);
+ if (!iheldthelock)
+ VOP_UNLOCK(vp, LK_EXCLUSIVE, curproc);
+#endif
+ }
+#endif
ObtainWriteLock(&afs_xcbhash, 464);
- tvc->states &= ~CUnique;
+ tvc->states &= ~CUnique;
tvc->callback = 0;
afs_DequeueCallback(tvc);
ReleaseWriteLock(&afs_xcbhash);
/* 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-volume info */
+ tvp = afs_GetVolume(afid, areq, READ_LOCK); /* copy useful per-volume info */
if (tvp) {
if ((tvp->states & VForeign)) {
- if (newvcache) tvc->states |= CForeign;
- if (newvcache && (tvp->rootVnode == afid->Fid.Vnode)
+ if (newvcache)
+ tvc->states |= CForeign;
+ if (newvcache && (tvp->rootVnode == afid->Fid.Vnode)
&& (tvp->rootUnique == afid->Fid.Unique)) {
tvc->mvstat = 2;
- }
+ }
}
- if (tvp->states & VRO) tvc->states |= CRO;
- if (tvp->states & VBackup) tvc->states |= CBackup;
+ if (tvp->states & VRO)
+ tvc->states |= CRO;
+ if (tvp->states & VBackup)
+ tvc->states |= CBackup;
/* now copy ".." entry back out of volume structure, if necessary */
- if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
+ if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
if (!tvc->mvid)
tvc->mvid = (struct VenusFid *)
osi_AllocSmallSpace(sizeof(struct VenusFid));
ObtainReadLock(&afs_xvcache);
AFS_FAST_RELE(tvc);
ReleaseReadLock(&afs_xvcache);
- return (struct vcache *) 0;
+ return NULL;
}
ReleaseWriteLock(&tvc->lock);
-#ifdef AFS_DARWIN_ENV
- osi_VM_Setup(avc);
-#endif
return tvc;
-} /*afs_GetVCache*/
+} /*afs_GetVCache */
-struct vcache *afs_LookupVCache(struct VenusFid *afid, struct vrequest *areq,
- afs_int32 *cached, afs_int32 locktype,
- struct vcache *adp, char *aname)
+struct vcache *
+afs_LookupVCache(struct VenusFid *afid, struct vrequest *areq,
+ afs_int32 * cached, struct vcache *adp, char *aname)
{
- afs_int32 code, now, newvcache=0, hash;
+ afs_int32 code, now, newvcache = 0;
struct VenusFid nfid;
register struct vcache *tvc;
struct volume *tvp;
afs_int32 retry;
AFS_STATCNT(afs_GetVCache);
- if (cached) *cached = 0; /* Init just in case */
+ if (cached)
+ *cached = 0; /* Init just in case */
+#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
loop1:
+#endif
+
ObtainReadLock(&afs_xvcache);
- tvc = afs_FindVCache(afid, 0, 0, &retry, DO_STATS /* no vlru */);
+ tvc = afs_FindVCache(afid, &retry, DO_STATS /* no vlru */ );
if (tvc) {
- ReleaseReadLock(&afs_xvcache);
- if (retry) {
+ ReleaseReadLock(&afs_xvcache);
+ if (retry) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
- spunlock_psema(tvc->v.v_lock, retry, &tvc->v.v_sync, PINOD);
- goto loop1;
+ spunlock_psema(tvc->v.v_lock, retry, &tvc->v.v_sync, PINOD);
+ goto loop1;
#endif
- }
- ObtainReadLock(&tvc->lock);
+ }
+ ObtainReadLock(&tvc->lock);
- if (tvc->states & CStatd) {
- if (cached) {
- *cached = 1;
+ if (tvc->states & CStatd) {
+ if (cached) {
+ *cached = 1;
+ }
+ ReleaseReadLock(&tvc->lock);
+ return tvc;
}
- ReleaseReadLock(&tvc->lock);
- return tvc;
- }
- tvc->states &= ~CUnique;
+ tvc->states &= ~CUnique;
ReleaseReadLock(&tvc->lock);
ObtainReadLock(&afs_xvcache);
AFS_FAST_RELE(tvc);
- } /* if (tvc) */
-
+ }
+ /* if (tvc) */
ReleaseReadLock(&afs_xvcache);
/* lookup the file */
nfid = *afid;
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);
+ code =
+ afs_RemoteLookup(&adp->fid, areq, aname, &nfid, &OutStatus, &CallBack,
+ &serverp, &tsync);
+#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
loop2:
- ObtainSharedLock(&afs_xvcache,6);
- tvc = afs_FindVCache(&nfid, 0, 0, &retry, DO_VLRU /* no xstats now*/);
+#endif
+
+ ObtainSharedLock(&afs_xvcache, 6);
+ tvc = afs_FindVCache(&nfid, &retry, DO_VLRU /* no xstats now */ );
if (tvc && retry) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
- ReleaseSharedLock(&afs_xvcache);
- spunlock_psema(tvc->v.v_lock, retry, &tvc->v.v_sync, PINOD);
- goto loop2;
+ ReleaseSharedLock(&afs_xvcache);
+ spunlock_psema(tvc->v.v_lock, retry, &tvc->v.v_sync, PINOD);
+ goto loop2;
#endif
}
if (!tvc) {
- /* no cache entry, better grab one */
- UpgradeSToWLock(&afs_xvcache,22);
- tvc = afs_NewVCache(&nfid, (struct server *)0, 1, WRITE_LOCK);
+ /* no cache entry, better grab one */
+ UpgradeSToWLock(&afs_xvcache, 22);
+ tvc = afs_NewVCache(&nfid, serverp);
newvcache = 1;
- ConvertWToSLock(&afs_xvcache);
+ ConvertWToSLock(&afs_xvcache);
}
ReleaseSharedLock(&afs_xvcache);
- ObtainWriteLock(&tvc->lock,55);
-
+ 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 */
+ tvp = afs_GetVolume(afid, areq, READ_LOCK); /* copy useful per-vol info */
if (tvp) {
if ((tvp->states & VForeign)) {
- if (newvcache) tvc->states |= CForeign;
+ if (newvcache)
+ tvc->states |= CForeign;
if (newvcache && (tvp->rootVnode == afid->Fid.Vnode)
&& (tvp->rootUnique == afid->Fid.Unique))
tvc->mvstat = 2;
}
- if (tvp->states & VRO) tvc->states |= CRO;
- if (tvp->states & VBackup) tvc->states |= CBackup;
+ if (tvp->states & VRO)
+ tvc->states |= CRO;
+ if (tvp->states & VBackup)
+ tvc->states |= CBackup;
/* now copy ".." entry back out of volume structure, if necessary */
- if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
+ if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
if (!tvc->mvid)
tvc->mvid = (struct VenusFid *)
osi_AllocSmallSpace(sizeof(struct VenusFid));
if (code) {
ObtainWriteLock(&afs_xcbhash, 465);
afs_DequeueCallback(tvc);
- tvc->states &= ~( CStatd | CUnique );
+ tvc->states &= ~(CStatd | CUnique);
ReleaseWriteLock(&afs_xcbhash);
- 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);
+ 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);
ReleaseWriteLock(&tvc->lock);
ObtainReadLock(&afs_xvcache);
AFS_FAST_RELE(tvc);
ReleaseReadLock(&afs_xvcache);
- return (struct vcache *) 0;
+ return NULL;
}
ObtainWriteLock(&afs_xcbhash, 466);
if (origCBs == afs_allCBs) {
if (CallBack.ExpirationTime) {
tvc->callback = serverp;
- tvc->cbExpires = CallBack.ExpirationTime+now;
+ tvc->cbExpires = CallBack.ExpirationTime + now;
tvc->states |= CStatd | CUnique;
tvc->states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(CallBack.ExpirationTime), tvp);
} else if (tvc->states & CRO) {
/* adapt gives us an hour. */
- tvc->cbExpires = 3600+osi_Time(); /*XXX*/
- tvc->states |= CStatd | CUnique;
+ 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 = (struct server *)0;
+ tvc->callback = NULL;
afs_DequeueCallback(tvc);
- tvc->states &= ~(CStatd | CUnique);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
+ 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->callback = (struct server *)0;
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
- }
+ tvc->states &= ~CStatd;
+ tvc->states &= ~CUnique;
+ tvc->callback = NULL;
+ if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
+ osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
+ }
ReleaseWriteLock(&afs_xcbhash);
- if ( tvp )
+ if (tvp)
afs_PutVolume(tvp, READ_LOCK);
afs_ProcessFS(tvc, &OutStatus, areq);
ReleaseWriteLock(&tvc->lock);
-#ifdef AFS_DARWIN_ENV
- osi_VM_Setup(tvc);
-#endif
return tvc;
}
-struct vcache *afs_GetRootVCache(struct VenusFid *afid,
- struct vrequest *areq, afs_int32 *cached,
- struct volume *tvolp, afs_int32 locktype)
+struct vcache *
+afs_GetRootVCache(struct VenusFid *afid, struct vrequest *areq,
+ afs_int32 * cached, struct volume *tvolp)
{
- afs_int32 code, i, newvcache = 0, haveStatus = 0;
+ afs_int32 code = 0, i, newvcache = 0, haveStatus = 0;
afs_int32 getNewFid = 0;
afs_uint32 start;
struct VenusFid nfid;
struct AFSFetchStatus OutStatus;
struct AFSCallBack CallBack;
struct AFSVolSync tsync;
- int origCBs;
+ int origCBs = 0;
start = osi_Time();
- newmtpt:
+ newmtpt:
if (!tvolp->rootVnode || getNewFid) {
struct VenusFid tfid;
tfid = *afid;
tfid.Fid.Vnode = 0; /* Means get rootfid of volume */
- origCBs = afs_allCBs; /* ignore InitCallBackState */
- code = afs_RemoteLookup(&tfid, areq, (char *)0, &nfid,
- &OutStatus, &CallBack, &serverp, &tsync);
+ origCBs = afs_allCBs; /* ignore InitCallBackState */
+ code =
+ afs_RemoteLookup(&tfid, areq, NULL, &nfid, &OutStatus, &CallBack,
+ &serverp, &tsync);
if (code) {
- return (struct vcache *)0;
+ return NULL;
}
/* ReleaseReadLock(&tvolp->lock); */
- ObtainWriteLock(&tvolp->lock,56);
+ 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);
+ }
+
+ ObtainSharedLock(&afs_xvcache, 7);
i = VCHash(afid);
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
- if (!FidCmp(&(tvc->fid), afid)) {
+ 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;
AFS_GUNLOCK();
- vg = vget(AFSTOV(tvc)); /* this bumps ref count */
+ vg = vget(AFSTOV(tvc)); /* this bumps ref count */
AFS_GLOCK();
if (vg)
- continue;
-#endif /* AFS_OSF_ENV */
+ continue;
+#endif /* AFS_OSF_ENV */
+#ifdef AFS_DARWIN14_ENV
+ /* It'd really suck if we allowed duplicate vcaches for the
+ * same fid to happen. Wonder if this will work? */
+ struct vnode *vp = AFSTOV(tvc);
+ if (vp->v_flag & (VXLOCK | VORECLAIM | VTERMINATE)) {
+ printf("precluded FindVCache on %x (%d:%d:%d)\n",
+ vp, tvc->fid.Fid.Volume, tvc->fid.Fid.Vnode,
+ tvc->fid.Fid.Unique);
+ simple_lock(&vp->v_interlock);
+ SET(vp->v_flag, VTERMWANT);
+ simple_unlock(&vp->v_interlock);
+ (void)tsleep((caddr_t) & vp->v_ubcinfo, PINOD, "vget1", 0);
+ printf("VTERMWANT ended on %x\n", vp);
+ continue;
+ }
+#endif
break;
}
}
/* Mount point no longer stat'd or unknown. FID may have changed. */
#ifdef AFS_OSF_ENV
if (tvc)
- AFS_RELE(tvc);
+ AFS_RELE(AFSTOV(tvc));
#endif
- tvc = (struct vcache*)0;
+ tvc = NULL;
getNewFid = 1;
ReleaseSharedLock(&afs_xvcache);
goto newmtpt;
}
if (!tvc) {
- UpgradeSToWLock(&afs_xvcache,23);
+ UpgradeSToWLock(&afs_xvcache, 23);
/* no cache entry, better grab one */
- tvc = afs_NewVCache(afid, (struct server *)0, 1, WRITE_LOCK);
+ tvc = afs_NewVCache(afid, NULL);
newvcache = 1;
afs_stats_cmperf.vcacheMisses++;
- }
- else {
- if (cached) *cached = 1;
+ } else {
+ if (cached)
+ *cached = 1;
afs_stats_cmperf.vcacheHits++;
#ifdef AFS_OSF_ENV
/* we already bumped the ref count in the for loop above */
-#else /* AFS_OSF_ENV */
- osi_vnhold(tvc,0);
+#else /* AFS_OSF_ENV */
+ osi_vnhold(tvc, 0);
#endif
- UpgradeSToWLock(&afs_xvcache,24);
+ UpgradeSToWLock(&afs_xvcache, 24);
if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("GRVC VLRU inconsistent0");
+ refpanic("GRVC VLRU inconsistent0");
}
if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic ("GRVC VLRU inconsistent1");
+ refpanic("GRVC VLRU inconsistent1");
}
if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic ("GRVC VLRU inconsistent2");
+ refpanic("GRVC VLRU inconsistent2");
}
- QRemove(&tvc->vlruq); /* move to lruq head */
+ QRemove(&tvc->vlruq); /* move to lruq head */
QAdd(&VLRU, &tvc->vlruq);
if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("GRVC VLRU inconsistent3");
+ refpanic("GRVC VLRU inconsistent3");
}
if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic ("GRVC VLRU inconsistent4");
+ refpanic("GRVC VLRU inconsistent4");
}
if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic ("GRVC VLRU inconsistent5");
+ refpanic("GRVC VLRU inconsistent5");
}
vcachegen++;
}
if (tvc->states & CStatd) {
return tvc;
- } else {
+ } else {
- ObtainReadLock(&tvc->lock);
- tvc->states &= ~CUnique;
- tvc->callback = (struct server *)0; /* redundant, perhaps */
- ReleaseReadLock(&tvc->lock);
+ ObtainReadLock(&tvc->lock);
+ tvc->states &= ~CUnique;
+ tvc->callback = NULL; /* redundant, perhaps */
+ ReleaseReadLock(&tvc->lock);
}
- ObtainWriteLock(&tvc->lock,57);
+ ObtainWriteLock(&tvc->lock, 57);
/* It is always appropriate to throw away all the access rights? */
afs_FreeAllAxs(&(tvc->Access));
- if (newvcache) tvc->states |= CForeign;
- if (tvolp->states & VRO) tvc->states |= CRO;
- if (tvolp->states & VBackup) tvc->states |= CBackup;
+ if (newvcache)
+ tvc->states |= CForeign;
+ 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;
}
- if (tvc->mvstat == 2 && tvolp->dotdot.Fid.Volume != 0) {
+ if (tvc->mvstat == 2 && tvolp->dotdot.Fid.Volume != 0) {
if (!tvc->mvid)
- tvc->mvid = (struct VenusFid *)osi_AllocSmallSpace(sizeof(struct VenusFid));
+ tvc->mvid = (struct VenusFid *)
+ osi_AllocSmallSpace(sizeof(struct VenusFid));
*tvc->mvid = tvolp->dotdot;
}
tfid = *afid;
tfid.Fid.Vnode = 0; /* Means get rootfid of volume */
- origCBs = afs_allCBs; /* ignore InitCallBackState */
- code = afs_RemoteLookup(&tfid, areq, (char *)0, &nfid, &OutStatus,
- &CallBack, &serverp, &tsync);
+ origCBs = afs_allCBs; /* ignore InitCallBackState */
+ code =
+ afs_RemoteLookup(&tfid, areq, NULL, &nfid, &OutStatus, &CallBack,
+ &serverp, &tsync);
}
if (code) {
ObtainWriteLock(&afs_xcbhash, 467);
afs_DequeueCallback(tvc);
- tvc->callback = (struct server *)0;
- tvc->states &= ~(CStatd|CUnique);
+ tvc->callback = NULL;
+ tvc->states &= ~(CStatd | CUnique);
ReleaseWriteLock(&afs_xcbhash);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
+ 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);
AFS_FAST_RELE(tvc);
ReleaseReadLock(&afs_xvcache);
- return (struct vcache *) 0;
+ return NULL;
}
-
+
ObtainWriteLock(&afs_xcbhash, 468);
if (origCBs == afs_allCBs) {
tvc->states |= CTruth;
tvc->callback = serverp;
- if (CallBack.ExpirationTime != 0) {
- tvc->cbExpires = CallBack.ExpirationTime+start;
+ if (CallBack.ExpirationTime != 0) {
+ tvc->cbExpires = CallBack.ExpirationTime + start;
tvc->states |= CStatd;
tvc->states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(CallBack.ExpirationTime), tvolp);
} else if (tvc->states & CRO) {
/* adapt gives us an hour. */
- tvc->cbExpires = 3600+osi_Time(); /*XXX*/
- tvc->states |= CStatd;
+ tvc->cbExpires = 3600 + osi_Time();
+ /*XXX*/ tvc->states |= CStatd;
tvc->states &= ~CBulkFetching;
afs_QueueCallback(tvc, CBHash(3600), tvolp);
}
} else {
afs_DequeueCallback(tvc);
- tvc->callback = (struct server *)0;
+ tvc->callback = NULL;
tvc->states &= ~(CStatd | CUnique);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
+ 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,
- struct vrequest *areq, struct AFSFetchStatus *Outsp)
+afs_int32
+afs_FetchStatus(struct vcache * avc, struct VenusFid * afid,
+ struct vrequest * areq, struct AFSFetchStatus * Outsp)
{
- int code;
- afs_uint32 start;
- register struct conn *tc;
- struct AFSCallBack CallBack;
- struct AFSVolSync tsync;
- struct volume* volp;
- XSTATS_DECLS
-
+ int code;
+ afs_uint32 start = 0;
+ register struct conn *tc;
+ struct AFSCallBack CallBack;
+ struct AFSVolSync tsync;
+ struct volume *volp;
+ XSTATS_DECLS;
do {
tc = afs_Conn(afid, areq, SHARED_LOCK);
- avc->quick.stamp = 0; avc->h1.dchint = NULL; /* invalidate hints */
+ avc->quick.stamp = 0;
+ avc->h1.dchint = NULL; /* invalidate hints */
if (tc) {
avc->callback = tc->srvr->server;
start = osi_Time();
XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHSTATUS);
RX_AFS_GUNLOCK();
- code = RXAFS_FetchStatus(tc->id,
- (struct AFSFid *) &afid->Fid,
- Outsp, &CallBack, &tsync);
+ code =
+ RXAFS_FetchStatus(tc->id, (struct AFSFid *)&afid->Fid, Outsp,
+ &CallBack, &tsync);
RX_AFS_GLOCK();
XSTATS_END_TIME;
+ } else
+ code = -1;
+ } while (afs_Analyze
+ (tc, code, afid, areq, AFS_STATS_FS_RPCIDX_FETCHSTATUS,
+ SHARED_LOCK, NULL));
+
+ if (!code) {
+ afs_ProcessFS(avc, Outsp, areq);
+ volp = afs_GetVolume(afid, areq, READ_LOCK);
+ ObtainWriteLock(&afs_xcbhash, 469);
+ avc->states |= CTruth;
+ if (avc->callback /* check for race */ ) {
+ 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) { /* ordinary callback on a read-only volume -- AFS 3.2 style */
+ avc->cbExpires = 3600 + start;
+ avc->states |= CStatd;
+ avc->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))
+ 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))
+ osi_dnlc_purgedp(avc); /* if it (could be) a directory */
}
- else code = -1;
- } while
- (afs_Analyze(tc, code, afid, areq,
- AFS_STATS_FS_RPCIDX_FETCHSTATUS,
- SHARED_LOCK, (struct cell *)0));
-
-if (!code) {
- afs_ProcessFS(avc, Outsp, areq);
- volp = afs_GetVolume(afid, areq, READ_LOCK);
- ObtainWriteLock(&afs_xcbhash, 469);
- avc->states |= CTruth;
- if (avc->callback /* check for race */) {
- 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)
- { /* ordinary callback on a read-only volume -- AFS 3.2 style */
- avc->cbExpires = 3600+start;
- avc->states |= CStatd;
- avc->states &= ~CBulkFetching;
- afs_QueueCallback(avc, CBHash(3600), volp);
- }
- else {
- afs_DequeueCallback(avc);
- avc->callback = (struct server *)0;
- 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 = (struct server *)0;
- 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
- * don't have access...
- */
- if (code == EPERM || code == EACCES) {
- struct axscache *ac;
- if (avc->Access && (ac = afs_FindAxs(avc->Access, areq->uid)))
- ac->axess = 0;
- else /* not found, add a new one if possible */
- afs_AddAxs(avc->Access, areq->uid, 0);
- }
-}
-return code;
+ 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
+ * don't have access...
+ */
+ if (code == EPERM || code == EACCES) {
+ struct axscache *ac;
+ if (avc->Access && (ac = afs_FindAxs(avc->Access, areq->uid)))
+ ac->axess = 0;
+ else /* not found, add a new one if possible */
+ afs_AddAxs(avc->Access, areq->uid, 0);
+ }
+ }
+ return code;
}
#if 0
* Nothing interesting.
*/
void
-afs_StuffVcache(afid, OutStatus, CallBack, tc, areq)
- register struct VenusFid *afid;
- struct AFSFetchStatus *OutStatus;
- struct AFSCallBack *CallBack;
- register struct conn *tc;
- struct vrequest *areq;
-
-{ /*afs_StuffVcache*/
-
- register afs_int32 code, i, newvcache=0;
+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;
register struct vcache *tvc;
struct AFSVolSync tsync;
struct volume *tvp;
#endif
loop:
- ObtainSharedLock(&afs_xvcache,8);
+ ObtainSharedLock(&afs_xvcache, 8);
- tvc = afs_FindVCache(afid, 0, 0, &retry, DO_VLRU /* no stats */);
+ tvc = afs_FindVCache(afid, &retry, DO_VLRU /* no stats */ );
if (tvc && retry) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
ReleaseSharedLock(&afs_xvcache);
spunlock_psema(tvc->v.v_lock, retry, &tvc->v.v_sync, PINOD);
goto loop;
#endif
- }
+ }
if (!tvc) {
/* no cache entry, better grab one */
- UpgradeSToWLock(&afs_xvcache,25);
- tvc = afs_NewVCache(afid, (struct server *)0, 1, WRITE_LOCK);
+ UpgradeSToWLock(&afs_xvcache, 25);
+ tvc = afs_NewVCache(afid, NULL);
newvcache = 1;
ConvertWToSLock(&afs_xvcache);
}
ReleaseSharedLock(&afs_xvcache);
- ObtainWriteLock(&tvc->lock,58);
+ ObtainWriteLock(&tvc->lock, 58);
tvc->states &= ~CStatd;
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
+ 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_FreeAllAxs(&(tvc->Access));
- /*Copy useful per-volume info*/
- tvp = afs_GetVolume(afid, areq, READ_LOCK);
+ /*Copy useful per-volume info */
+ tvp = afs_GetVolume(afid, areq, READ_LOCK);
if (tvp) {
- if (newvcache && (tvp->states & VForeign)) tvc->states |= CForeign;
- if (tvp->states & VRO) tvc->states |= CRO;
- if (tvp->states & VBackup) tvc->states |= CBackup;
+ if (newvcache && (tvp->states & VForeign))
+ tvc->states |= CForeign;
+ if (tvp->states & VRO)
+ tvc->states |= CRO;
+ if (tvp->states & VBackup)
+ tvc->states |= CBackup;
/*
* Now, copy ".." entry back out of volume structure, if
* necessary
*/
- if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
- if (!tvc->mvid) tvc->mvid =
- (struct VenusFid *) osi_AllocSmallSpace(sizeof(struct VenusFid));
+ if (tvc->mvstat == 2 && tvp->dotdot.Fid.Volume != 0) {
+ if (!tvc->mvid)
+ tvc->mvid = (struct VenusFid *)
+ osi_AllocSmallSpace(sizeof(struct VenusFid));
*tvc->mvid = tvp->dotdot;
}
}
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);
- }
- else if (tvc->states & CRO) {
- /* old-fashioned AFS 3.2 style */
- tvc->cbExpires = 3600+osi_Time(); /*XXX*/
- tvc->states |= CStatd;
- tvc->states &= ~CBulkFetching;
- afs_QueueCallback(tvc, CBHash(3600), tvp);
- }
- else {
- afs_DequeueCallback(tvc);
- tvc->callback = (struct server *)0;
- tvc->states &= ~(CStatd|CUnique);
- if ((tvc->states & CForeign) || (tvc->fid.Fid.Vnode & 1))
- osi_dnlc_purgedp (tvc); /* if it (could be) a directory */
+ } else if (tvc->states & CRO) {
+ /* old-fashioned AFS 3.2 style */
+ tvc->cbExpires = 3600 + osi_Time();
+ /*XXX*/ tvc->states |= CStatd;
+ tvc->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))
+ osi_dnlc_purgedp(tvc); /* if it (could be) a directory */
}
ReleaseWriteLock(&afs_xcbhash);
- if ( tvp )
+ 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 */
- else /* not found, add a new one if possible */
- afs_AddAxs(tvc->Access, areq->uid, OutStatus->CallerAccess);
+ if (tvc->Access && (ac = afs_FindAxs(tvc->Access, areq->uid)))
+ ac->axess = OutStatus->CallerAccess; /* substitute pags */
+ else /* not found, add a new one if possible */
+ afs_AddAxs(tvc->Access, areq->uid, OutStatus->CallerAccess);
ReleaseWriteLock(&tvc->lock);
afs_Trace4(afs_iclSetp, CM_TRACE_STUFFVCACHE, ICL_TYPE_POINTER, tvc,
- ICL_TYPE_POINTER, tvc->callback, ICL_TYPE_INT32, tvc->cbExpires,
- ICL_TYPE_INT32, tvc->cbExpires-osi_Time());
+ ICL_TYPE_POINTER, tvc->callback, ICL_TYPE_INT32,
+ tvc->cbExpires, ICL_TYPE_INT32, tvc->cbExpires - osi_Time());
/*
* Release ref count... hope this guy stays around...
*/
- afs_PutVCache(tvc, WRITE_LOCK);
-} /*afs_StuffVcache*/
+ afs_PutVCache(tvc);
+} /*afs_StuffVcache */
#endif
/*
* Nothing interesting.
*/
void
-afs_PutVCache(avc, locktype)
- register struct vcache *avc;
- afs_int32 locktype;
-{ /*afs_PutVCache*/
-
+afs_PutVCache(register struct vcache *avc)
+{
AFS_STATCNT(afs_PutVCache);
/*
* Can we use a read lock here?
ObtainReadLock(&afs_xvcache);
AFS_FAST_RELE(avc);
ReleaseReadLock(&afs_xvcache);
-} /*afs_PutVCache*/
+} /*afs_PutVCache */
/*
* afs_FindVCache
*
* 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.
* must be shared-- we upgrade it here.
*/
-struct vcache *afs_FindVCache(struct VenusFid *afid, afs_int32 lockit,
- afs_int32 locktype, afs_int32 *retry, afs_int32 flag)
+struct vcache *
+afs_FindVCache(struct VenusFid *afid, afs_int32 * retry, afs_int32 flag)
{
register struct vcache *tvc;
AFS_STATCNT(afs_FindVCache);
i = VCHash(afid);
- for(tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
- if (FidMatches(afid, tvc)) {
+ for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
+ if (FidMatches(afid, tvc)) {
#ifdef AFS_OSF_ENV
- /* Grab this vnode, possibly reactivating from the free list */
+ /* Grab this vnode, possibly reactivating from the free list */
int vg;
AFS_GUNLOCK();
- vg = vget(AFSTOV(tvc));
+ vg = vget(AFSTOV(tvc));
AFS_GLOCK();
if (vg)
- continue;
-#endif /* AFS_OSF_ENV */
+ continue;
+#endif /* AFS_OSF_ENV */
break;
}
}
/* should I have a read lock on the vnode here? */
if (tvc) {
- if (retry) *retry = 0;
+ 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");
- }
- UpgradeSToWLock(&afs_xvcache,26);
+ 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 (afid->Cell == LOCALCELL)
- 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
if (tvc && (tvc->states & CStatd))
- vcache2inode(tvc); /* mainly to reset i_nlink */
+ vcache2inode(tvc); /* mainly to reset i_nlink */
#endif
#ifdef AFS_DARWIN_ENV
if (tvc)
- osi_VM_Setup(tvc);
+ osi_VM_Setup(tvc, 0);
#endif
return tvc;
-} /*afs_FindVCache*/
+} /*afs_FindVCache */
/*
* afs_NFSFindVCache
* 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.
* number of matches found.
*/
-int afs_duplicate_nfs_fids=0;
-
-afs_int32 afs_NFSFindVCache(avcp, afid, lockit)
- struct vcache **avcp;
- struct VenusFid *afid;
- afs_int32 lockit;
-{ /*afs_FindVCache*/
+int afs_duplicate_nfs_fids = 0;
+afs_int32
+afs_NFSFindVCache(struct vcache **avcp, struct VenusFid *afid)
+{
register struct vcache *tvc;
afs_int32 i;
- afs_int32 retry = 0;
afs_int32 count = 0;
struct vcache *found_tvc = NULL;
AFS_STATCNT(afs_FindVCache);
- loop:
+#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
+ loop:
+#endif
- ObtainSharedLock(&afs_xvcache,331);
+ ObtainSharedLock(&afs_xvcache, 331);
i = VCHash(afid);
- for(tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
+ for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
/* Match only on what we have.... */
- if (((tvc->fid.Fid.Vnode & 0xffff) == afid->Fid.Vnode)
+ 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)) {
#ifdef AFS_OSF_ENV
- /* Grab this vnode, possibly reactivating from the free list */
+ /* Grab this vnode, possibly reactivating from the free list */
int vg;
AFS_GUNLOCK();
- vg = vget(AFSTOV(tvc));
+ vg = vget(AFSTOV(tvc));
AFS_GLOCK();
if (vg) {
/* This vnode no longer exists. */
- continue;
+ continue;
}
-#endif /* AFS_OSF_ENV */
- count ++;
+#endif /* AFS_OSF_ENV */
+ count++;
if (found_tvc) {
/* Duplicates */
#ifdef AFS_OSF_ENV
/* should I have a read lock on the vnode here? */
if (tvc) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
- osi_vnhold(tvc, &retry);
+ afs_int32 retry = 0;
+ osi_vnhold(tvc, &retry);
if (retry) {
count = 0;
- found_tvc = (struct vcache*)0;
+ found_tvc = (struct vcache *)0;
ReleaseSharedLock(&afs_xvcache);
spunlock_psema(tvc->v.v_lock, retry, &tvc->v.v_sync, PINOD);
goto loop;
}
#else
#if !defined(AFS_OSF_ENV)
- osi_vnhold(tvc, (int*)0); /* already held, above */
+ osi_vnhold(tvc, (int *)0); /* already held, above */
#endif
#endif
/*
* We obtained the xvcache lock above.
*/
if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("FindVC VLRU inconsistent1");
+ refpanic("FindVC VLRU inconsistent1");
}
if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent1");
+ refpanic("FindVC VLRU inconsistent1");
}
if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent2");
+ refpanic("FindVC VLRU inconsistent2");
}
- UpgradeSToWLock(&afs_xvcache,568);
+ UpgradeSToWLock(&afs_xvcache, 568);
QRemove(&tvc->vlruq);
QAdd(&VLRU, &tvc->vlruq);
ConvertWToSLock(&afs_xvcache);
if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic ("FindVC VLRU inconsistent1");
+ refpanic("FindVC VLRU inconsistent1");
}
if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent2");
+ refpanic("FindVC VLRU inconsistent2");
}
if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic ("FindVC VLRU inconsistent3");
+ refpanic("FindVC VLRU inconsistent3");
}
}
vcachegen++;
- if (tvc) afs_stats_cmperf.vcacheHits++;
- else afs_stats_cmperf.vcacheMisses++;
- if (afid->Cell == LOCALCELL)
- afs_stats_cmperf.vlocalAccesses++;
+ 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++;
+ afs_stats_cmperf.vremoteAccesses++;
- *avcp = tvc; /* May be null */
+ *avcp = tvc; /* May be null */
ReleaseSharedLock(&afs_xvcache);
return (tvc ? 1 : 0);
-} /*afs_NFSFindVCache*/
+} /*afs_NFSFindVCache */
*
* Initialize vcache related variables
*/
-void afs_vcacheInit(int astatSize)
+void
+afs_vcacheInit(int astatSize)
{
register struct vcache *tvp;
int i;
#if defined(AFS_OSF_ENV)
if (!afs_maxvcount) {
#if defined(AFS_OSF30_ENV)
- afs_maxvcount = max_vnodes/2; /* limit ourselves to half the total */
+ afs_maxvcount = max_vnodes / 2; /* limit ourselves to half the total */
#else
- afs_maxvcount = nvnode/2; /* limit ourselves to half the total */
-#endif
- if (astatSize < afs_maxvcount) {
- afs_maxvcount = astatSize;
- }
+ afs_maxvcount = nvnode / 2; /* limit ourselves to half the total */
+#endif
+ if (astatSize < afs_maxvcount) {
+ afs_maxvcount = astatSize;
+ }
}
-#else /* AFS_OSF_ENV */
- freeVCList = (struct vcache *)0;
+#else /* AFS_OSF_ENV */
+ freeVCList = NULL;
#endif
RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
LOCK_INIT(&afs_xvcb, "afs_xvcb");
#if !defined(AFS_OSF_ENV)
+#ifdef AFS_LINUX26_ENV
+ printf("old style would have needed %d contiguous bytes\n", astatSize *
+ sizeof(struct vcache));
+ Initial_freeVCList = freeVCList = tvp = (struct vcache *)
+ afs_osi_Alloc(sizeof(struct vcache));
+ for (i = 0; i < astatSize; i++) {
+ tvp->nextfree = (struct vcache *) afs_osi_Alloc(sizeof(struct vcache));
+ tvp = tvp->nextfree;
+ }
+ tvp->nextfree = NULL;
+#else
/* Allocate and thread the struct vcache entries */
- tvp = (struct vcache *) afs_osi_Alloc(astatSize * sizeof(struct vcache));
- memset((char *)tvp, 0, sizeof(struct vcache)*astatSize);
+ tvp = (struct vcache *)afs_osi_Alloc(astatSize * sizeof(struct vcache));
+ memset((char *)tvp, 0, sizeof(struct vcache) * astatSize);
Initial_freeVCList = tvp;
freeVCList = &(tvp[0]);
- for(i=0; i < astatSize-1; i++) {
- tvp[i].nextfree = &(tvp[i+1]);
- }
- tvp[astatSize-1].nextfree = (struct vcache *) 0;
-#ifdef AFS_AIX32_ENV
- pin((char *)tvp, astatSize * sizeof(struct vcache)); /* XXX */
+ 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 */
+#endif
#endif
#endif
-
#if defined(AFS_SGI_ENV)
- for(i=0; i < astatSize; i++) {
+ for (i = 0; i < astatSize; i++) {
char name[METER_NAMSZ];
struct vcache *tvc = &tvp[i];
tvc->v.v_number = ++afsvnumbers;
tvc->vc_rwlockid = OSI_NO_LOCKID;
- initnsema(&tvc->vc_rwlock, 1, makesname(name, "vrw", tvc->v.v_number));
+ 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
* shutdown_vcache
*
*/
-void shutdown_vcache(void)
+void
+shutdown_vcache(void)
{
int i;
struct afs_cbr *tsp, *nsp;
* free vcache entries and all the vcache entries are active ones then we allocate
* an additional one - admittedly we almost never had that occur.
*/
-#if !defined(AFS_OSF_ENV)
- afs_osi_Free(Initial_freeVCList, afs_cacheStats * sizeof(struct vcache));
-#endif
-#ifdef AFS_AIX32_ENV
- unpin(Initial_freeVCList, afs_cacheStats * sizeof(struct vcache));
-#endif
{
register struct afs_q *tq, *uq;
uq = QPrev(tq);
if (tvc->mvid) {
osi_FreeSmallSpace(tvc->mvid);
- tvc->mvid = (struct VenusFid*)0;
+ tvc->mvid = (struct VenusFid *)0;
}
#ifdef AFS_AIX_ENV
aix_gnode_rele(AFSTOV(tvc));
#endif
if (tvc->linkData) {
- afs_osi_Free(tvc->linkData, strlen(tvc->linkData)+1);
+ afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
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 (i = 0; i < VCSIZE; i++) {
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if (tvc->mvid) {
osi_FreeSmallSpace(tvc->mvid);
- tvc->mvid = (struct VenusFid*)0;
+ tvc->mvid = (struct VenusFid *)0;
}
#ifdef AFS_AIX_ENV
if (tvc->v.v_gnode)
vms_delete(tvc->segid);
AFS_GLOCK();
tvc->segid = tvc->vmh = NULL;
- if (VREFCOUNT(tvc)) osi_Panic("flushVcache: vm race");
+ if (VREFCOUNT(tvc))
+ osi_Panic("flushVcache: vm race");
}
if (tvc->credp) {
crfree(tvc->credp);
}
#endif
if (tvc->linkData) {
- afs_osi_Free(tvc->linkData, strlen(tvc->linkData)+1);
+ afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
tvc->linkData = 0;
}
/*
* Free any leftover callback queue
*/
- for (tsp = afs_cbrSpace; tsp; tsp = nsp ) {
+ for (tsp = afs_cbrSpace; tsp; tsp = nsp) {
nsp = tsp->next;
afs_osi_Free((char *)tsp, AFS_NCBRS * sizeof(struct afs_cbr));
}
afs_cbrSpace = 0;
+#ifdef AFS_LINUX26_ENV
+ {
+ struct vcache *tvp = Initial_freeVCList;
+ while (tvp) {
+ struct vcache *next = tvp->nextfree;
+
+ afs_osi_Free(tvp, sizeof(struct vcache));
+ tvp = next;
+ }
+ }
+#else
+#ifdef KERNEL_HAVE_PIN
+ unpin(Initial_freeVCList, afs_cacheStats * sizeof(struct vcache));
+#endif
+#if !defined(AFS_OSF_ENV)
+ afs_osi_Free(Initial_freeVCList, afs_cacheStats * sizeof(struct vcache));
+#endif
+#endif
+
#if !defined(AFS_OSF_ENV)
freeVCList = Initial_freeVCList = 0;
#endif
git://git.openafs.org / openafs.git / blobdiff