#include <afsconfig.h>
#include "afs/param.h"
-RCSID
- ("$Header$");
#include "afs/sysincludes.h" /*Standard vendor system headers */
#include "afsincludes.h" /*AFS-based standard headers */
#include "afs/afs_cbqueue.h"
#include "afs/afs_osidnlc.h"
-#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
+#if defined(AFS_LINUX22_ENV)
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 */
+#endif /* AFS_LINUX22_ENV */
#ifdef AFS_SGI_ENV
int afsvnumbers = 0;
static struct afs_cbr *afs_cbrHashT[CBRSIZE];
afs_int32 afs_bulkStatsLost;
int afs_norefpanic = 0;
-extern int afsd_dynamic_vcaches;
/* Disk backed vcache definitions
* Both protected by xvcache */
+#ifdef AFS_DISCON_ENV
static int afs_nextVcacheSlot = 0;
static struct afs_slotlist *afs_freeSlotList = NULL;
+#endif
/* Forward declarations */
static afs_int32 afs_QueueVCB(struct vcache *avc);
AFS_STATCNT(afs_FlushVCache);
afs_Trace2(afs_iclSetp, CM_TRACE_FLUSHV, ICL_TYPE_POINTER, avc,
ICL_TYPE_INT32, avc->f.states);
-#ifdef AFS_OSF_ENV
- AFS_GUNLOCK();
- VN_LOCK(AFSTOV(avc));
- AFS_GLOCK();
-#endif
code = osi_VM_FlushVCache(avc, slept);
if (code)
vn_reinit(AFSTOV(avc));
#endif
afs_FreeAllAxs(&(avc->Access));
-
- /* 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. */
- if ((avc->f.states & CRO) == 0 && avc->callback) {
- afs_QueueVCB(avc);
- }
+ afs_QueueVCB(avc);
ObtainWriteLock(&afs_xcbhash, 460);
afs_DequeueCallback(avc); /* remove it from queued callbacks list */
avc->f.states &= ~(CStatd | CUnique);
else
afs_evenZaps++;
-#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
+#if !defined(AFS_LINUX22_ENV)
/* put the entry in the free list */
avc->nextfree = freeVCList;
freeVCList = avc;
afs_vcount--;
vSetType(avc, VREG);
if (VREFCOUNT_GT(avc,0)) {
-#if defined(AFS_OSF_ENV)
- VN_UNLOCK(AFSTOV(avc));
-#endif
AFS_RELE(AFSTOV(avc));
afs_stats_cmperf.vcacheXAllocs--;
} else {
if (afs_norefpanic) {
printf("flush vc refcnt < 1");
afs_norefpanic++;
-#if defined(AFS_OSF_ENV)
- (void)vgone(avc, VX_NOSLEEP, NULL);
- AFS_GLOCK();
- VN_UNLOCK(AFSTOV(avc));
-#endif
} else
osi_Panic("flush vc refcnt < 1");
}
-#endif /* AFS_OSF_ENV */
+#endif /* AFS_LINUX22_ENV */
return 0;
bad:
-#ifdef AFS_OSF_ENV
- VN_UNLOCK(AFSTOV(avc));
-#endif
return code;
-
} /*afs_FlushVCache */
#ifndef AFS_SGI_ENV
* \param acred
*/
void
-afs_InactiveVCache(struct vcache *avc, struct AFS_UCRED *acred)
+afs_InactiveVCache(struct vcache *avc, afs_ucred_t *acred)
{
AFS_STATCNT(afs_inactive);
if (avc->f.states & CDirty) {
* Called when the xvcache lock is already held.
*
* \param avc vcache entry
- * \return 0 for success < 0 otherwise.
+ * \return 1 if queued, 0 otherwise
*/
static afs_int32
afs_QueueVCB(struct vcache *avc)
{
+ int queued = 0;
struct server *tsp;
struct afs_cbr *tcbp;
AFS_STATCNT(afs_QueueVCB);
+
+ MObtainWriteLock(&afs_xvcb, 274);
+
+ /* 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. */
+ if (!((avc->f.states & CRO) == 0 && avc->callback)) {
+ goto done;
+ }
+
/* The callback is really just a struct server ptr. */
tsp = (struct server *)(avc->callback);
/* we now have a pointer to the server, so we just allocate
* a queue entry and queue it.
*/
- MObtainWriteLock(&afs_xvcb, 274);
tcbp = afs_AllocCBR();
tcbp->fid = avc->f.fid.Fid;
tcbp->pprev = &tsp->cbrs;
afs_InsertHashCBR(tcbp);
+ queued = 1;
+ done:
/* now release locks and return */
MReleaseWriteLock(&afs_xvcb);
- return 0;
+ return queued;
}
int
afs_ShakeLooseVCaches(afs_int32 anumber)
{
-#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
- afs_int32 i, j;
+#if defined(AFS_LINUX22_ENV)
+ afs_int32 i;
struct vcache *tvc;
struct afs_q *tq, *uq;
int code, fv_slept;
afs_int32 target = anumber;
- int haveGlock = 1;
-
- /* Should probably deal better */
- if (!ISAFS_GLOCK()) {
- haveGlock = 0;
- AFS_GLOCK();
- }
-
- if (
-#ifdef AFS_MAXVCOUNT_ENV
- afsd_dynamic_vcaches || /* Always run if dynamic vcaches are enabled. */
-#endif
- afs_vcount >= afs_maxvcount
- ) {
- int i;
+ if (afsd_dynamic_vcaches || afs_vcount >= afs_maxvcount) {
i = 0;
for (tq = VLRU.prev; tq != &VLRU && anumber > 0; tq = uq) {
tvc = QTOV(tq);
uq = QPrev(tq);
if (tvc->f.states & CVFlushed) {
refpanic("CVFlushed on VLRU");
- } else if (
-#ifdef AFS_MAXVCOUNT_ENV
- ! afsd_dynamic_vcaches &&
-#endif
- i++ > afs_maxvcount) {
+ } else if (!afsd_dynamic_vcaches && i++ > afs_maxvcount) {
refpanic("Exceeded pool of AFS vnodes(VLRU cycle?)");
} else if (QNext(uq) != tq) {
refpanic("VLRU inconsistent");
if (tq == uq)
break;
}
- if (
-#ifdef AFS_MAXVCOUNT_ENV
- !afsd_dynamic_vcaches &&
-#endif
- anumber == target) {
+ if (!afsd_dynamic_vcaches && anumber == target) {
printf("afs_ShakeLooseVCaches: warning none freed, using %d of %d\n",
afs_vcount, afs_maxvcount);
}
/*
printf("recycled %d entries\n", target-anumber);
*/
- if (!haveGlock)
- AFS_GUNLOCK();
#endif
return 0;
}
afs_AllocVCache(void)
{
struct vcache *tvc;
-#if defined(AFS_OSF30_ENV)
- struct vcache *nvc;
- AFS_GUNLOCK();
- if (getnewvnode(MOUNT_AFS, &Afs_vnodeops, &nvc)) {
- /* What should we do ???? */
- osi_Panic("afs_AllocVCache: no more vnodes");
- }
- AFS_GLOCK();
-
- tvc = nvc;
- tvc->nextfree = NULL;
- afs_vcount++;
-#elif defined(AFS_LINUX22_ENV)
+#if defined(AFS_LINUX22_ENV)
struct inode *ip;
AFS_GUNLOCK();
#endif
afs_vcount++;
-#ifdef AFS_MAXVCOUNT_ENV
+
/* track the peak */
if (afsd_dynamic_vcaches && afs_maxvcount < afs_vcount) {
afs_maxvcount = afs_vcount;
/*printf("peak vnodes: %d\n", afs_maxvcount);*/
}
-#endif
+
afs_stats_cmperf.vcacheXAllocs++; /* count in case we have a leak */
#else
/* none free, making one is better than a panic */
#ifdef AFS_AIX_ENV
struct gnode *gnodepnt;
#endif
+#if !defined(AFS_LINUX22_ENV)
struct afs_q *tq, *uq;
int code, fv_slept;
+#endif
AFS_STATCNT(afs_NewVCache);
afs_FlushReclaimedVcaches();
-#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
-#ifdef AFS_MAXVCOUNT_ENV
+#if defined(AFS_LINUX22_ENV)
if(!afsd_dynamic_vcaches) {
-#endif
afs_ShakeLooseVCaches(anumber);
if (afs_vcount >= afs_maxvcount) {
printf("afs_NewVCache - none freed\n");
return NULL;
}
-#ifdef AFS_MAXVCOUNT_ENV
}
-#endif
tvc = afs_AllocVCache();
-#else /* AFS_OSF_ENV */
+#else /* AFS_LINUX22_ENV */
/* pull out a free cache entry */
if (!freeVCList) {
int loop = 0;
tvc->nextfree = NULL;
} /* end of if (!freeVCList) */
-#endif /* AFS_OSF_ENV */
+#endif /* AFS_LINUX22_ENV */
#if defined(AFS_XBSD_ENV) || defined(AFS_DARWIN_ENV)
if (tvc->v)
panic("afs_NewVCache(): free vcache with vnode attached");
#endif
-#if !defined(AFS_SGI_ENV) && !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
+#if !defined(AFS_SGI_ENV) && !defined(AFS_LINUX22_ENV)
#if defined(AFS_DISCON_ENV)
/* We need to preserve the slot that we're being stored into on
{
afs_uint32 slot;
slot = tvc->diskSlot;
- memset((char *)tvc, 0, sizeof(struct vcache));
+ memset(tvc, 0, sizeof(struct vcache));
tvc->diskSlot = slot;
}
#else
- memset((char *)tvc, 0, sizeof(struct vcache));
+ memset(tvc, 0, sizeof(struct vcache));
#endif
#else
tvc->f.fid = *afid;
tvc->asynchrony = -1;
tvc->vc_error = 0;
+#if defined(AFS_LINUX26_ENV)
+ tvc->cred = NULL;
+#endif
#ifdef AFS_TEXT_ENV
tvc->flushDV.low = tvc->flushDV.high = AFS_MAXDV;
#endif
}
#endif
-#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
+#if defined(AFS_LINUX22_ENV)
/* Hold it for the LRU (should make count 2) */
VN_HOLD(AFSTOV(tvc));
-#else /* AFS_OSF_ENV */
-#if !(defined (AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV))
+#elif !(defined (AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV))
VREFCOUNT_SET(tvc, 1); /* us */
-#endif /* AFS_XBSD_ENV */
-#endif /* AFS_OSF_ENV */
+#endif
+
#ifdef AFS_AIX32_ENV
LOCK_INIT(&tvc->pvmlock, "vcache pvmlock");
tvc->vmh = tvc->segid = NULL;
/* Don't forget to free the gnode space */
tvc->v.v_gnode = gnodepnt =
(struct gnode *)osi_AllocSmallSpace(sizeof(struct gnode));
- memset((char *)gnodepnt, 0, sizeof(struct gnode));
+ memset(gnodepnt, 0, sizeof(struct gnode));
#endif
#ifdef AFS_SGI64_ENV
memset((void *)&(tvc->vc_bhv_desc), 0, sizeof(tvc->vc_bhv_desc));
tvc->v.v_next = gnodepnt->gn_vnode; /*Single vnode per gnode for us! */
gnodepnt->gn_vnode = &tvc->v;
#endif
-#if defined(AFS_DUX40_ENV)
- insmntque(tvc, afs_globalVFS, &afs_ubcops);
-#else
-#ifdef AFS_OSF_ENV
- /* Is this needed??? */
- insmntque(tvc, afs_globalVFS);
-#endif /* AFS_OSF_ENV */
-#endif /* AFS_DUX40_ENV */
#ifdef AFS_FBSD70_ENV
#ifndef AFS_FBSD80_ENV /* yup. they put it back. */
insmntque(AFSTOV(tvc), afs_globalVFS);
#endif /* AFS_SGI_ENV */
tvc->dchint = NULL;
osi_dnlc_purgedp(tvc); /* this may be overkill */
- memset((char *)&(tvc->callsort), 0, sizeof(struct afs_q));
+ memset(&(tvc->callsort), 0, sizeof(struct afs_q));
tvc->slocks = NULL;
tvc->f.states &=~ CVInit;
afs_osi_Wakeup(&tvc->f.states);
register int i;
register struct afs_conn *tc;
register afs_int32 code;
- register struct AFS_UCRED *cred = NULL;
+ afs_ucred_t *cred = NULL;
struct vrequest treq, ureq;
struct AFSVolSync tsync;
int didCore;
if (tvc->f.states & CCore) {
tvc->f.states &= ~CCore;
/* XXXX Find better place-holder for cred XXXX */
- cred = (struct AFS_UCRED *)tvc->linkData;
+ cred = (afs_ucred_t *)tvc->linkData;
tvc->linkData = NULL; /* XXX */
afs_InitReq(&ureq, cred);
afs_Trace2(afs_iclSetp, CM_TRACE_ACTCCORE,
AFS_STATCNT(afs_VerifyVCache);
-#if defined(AFS_OSF_ENV)
- ObtainReadLock(&avc->lock);
- if (afs_IsWired(avc)) {
- ReleaseReadLock(&avc->lock);
- return 0;
- }
- ReleaseReadLock(&avc->lock);
-#endif /* AFS_OSF_ENV */
/* otherwise we must fetch the status info */
ObtainWriteLock(&avc->lock, 53);
ReleaseWriteLock(&tvc->lock);
return tvc;
}
-#if defined(AFS_OSF_ENV)
- if (afs_IsWired(tvc)) {
- ReleaseWriteLock(&tvc->lock);
- return tvc;
- }
-#endif /* AFS_OSF_ENV */
#ifdef AFS_DARWIN80_ENV
/* Darwin 8.0 only has bufs in nfs, so we shouldn't have to worry about them.
What about ubc? */
struct AFSCallBack CallBack;
struct AFSVolSync tsync;
int origCBs = 0;
-#ifdef AFS_OSF_ENV
- int vg;
-#endif
#ifdef AFS_DARWIN80_ENV
vnode_t tvp;
#endif
afs_osi_Sleep(&tvc->f.states);
goto rootvc_loop;
}
-#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
- * definitively NOT in the free list -- at least until afs_reclaim
- * can be safely implemented */
- AFS_GUNLOCK();
- vg = vget(AFSTOV(tvc)); /* this bumps ref count */
- AFS_GLOCK();
- if (vg)
- continue;
-#endif /* AFS_OSF_ENV */
#ifdef AFS_DARWIN80_ENV
if (tvc->f.states & CDeadVnode) {
ReleaseSharedLock(&afs_xvcache);
if (!haveStatus && (!tvc || !(tvc->f.states & CStatd))) {
/* Mount point no longer stat'd or unknown. FID may have changed. */
-#ifdef AFS_OSF_ENV
- if (tvc)
- AFS_RELE(AFSTOV(tvc));
-#endif
getNewFid = 1;
ReleaseSharedLock(&afs_xvcache);
#ifdef AFS_DARWIN80_ENV
if (cached)
*cached = 1;
afs_stats_cmperf.vcacheHits++;
-#if defined(AFS_OSF_ENV) || defined(AFS_DARWIN80_ENV)
+#if defined(AFS_DARWIN80_ENV)
/* we already bumped the ref count in the for loop above */
-#else /* AFS_OSF_ENV */
+#else /* AFS_DARWIN80_ENV */
osi_vnhold(tvc, 0);
#endif
UpgradeSToWLock(&afs_xvcache, 24);
* \note avc must be write locked on entry
*/
void
-afs_ResetVCache(struct vcache *avc, struct AFS_UCRED *acred) {
+afs_ResetVCache(struct vcache *avc, afs_ucred_t *acred) {
ObtainWriteLock(&afs_xcbhash, 456);
afs_DequeueCallback(avc);
avc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat */
register struct vcache *tvc;
afs_int32 i;
-#if defined( AFS_OSF_ENV)
- int vg;
-#endif
#ifdef AFS_DARWIN80_ENV
vnode_t tvp;
#endif
findvc_sleep(tvc, flag);
goto findloop;
}
-#ifdef AFS_OSF_ENV
- /* Grab this vnode, possibly reactivating from the free list */
- AFS_GUNLOCK();
- vg = vget(AFSTOV(tvc));
- AFS_GLOCK();
- if (vg)
- continue;
-#endif /* AFS_OSF_ENV */
#ifdef AFS_DARWIN80_ENV
if (tvc->f.states & CDeadVnode) {
findvc_sleep(tvc, flag);
if (tvc) {
if (retry)
*retry = 0;
-#if !defined(AFS_OSF_ENV) && !defined(AFS_DARWIN80_ENV)
+#if !defined(AFS_DARWIN80_ENV)
osi_vnhold(tvc, retry); /* already held, above */
if (retry && *retry)
return 0;
afs_int32 i;
afs_int32 count = 0;
struct vcache *found_tvc = NULL;
-#ifdef AFS_OSF_ENV
- int vg;
-#endif
#ifdef AFS_DARWIN80_ENV
vnode_t tvp;
#endif
afs_osi_Sleep(&tvc->f.states);
goto loop;
}
-#ifdef AFS_OSF_ENV
- /* Grab this vnode, possibly reactivating from the free list */
- AFS_GUNLOCK();
- vg = vget(AFSTOV(tvc));
- AFS_GLOCK();
- if (vg) {
- /* This vnode no longer exists. */
- continue;
- }
-#endif /* AFS_OSF_ENV */
#ifdef AFS_DARWIN80_ENV
if (tvc->f.states & CDeadVnode) {
ReleaseSharedLock(&afs_xvcache);
count++;
if (found_tvc) {
/* Duplicates */
-#ifdef AFS_OSF_ENV
- /* Drop our reference counts. */
- vrele(AFSTOV(tvc));
- vrele(AFSTOV(found_tvc));
-#endif
afs_duplicate_nfs_fids++;
ReleaseSharedLock(&afs_xvcache);
#ifdef AFS_DARWIN80_ENV
goto loop;
}
#else
-#if !defined(AFS_OSF_ENV)
osi_vnhold(tvc, (int *)0); /* already held, above */
#endif
-#endif
/*
* We obtained the xvcache lock above.
*/
void
afs_vcacheInit(int astatSize)
{
-#if (!defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)) || defined(AFS_SGI_ENV)
+#if !defined(AFS_LINUX22_ENV)
register struct vcache *tvp;
#endif
int i;
-#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
- if (!afs_maxvcount) {
#if defined(AFS_LINUX22_ENV)
+ if (!afs_maxvcount) {
afs_maxvcount = astatSize; /* no particular limit on linux? */
-#elif defined(AFS_OSF30_ENV)
- afs_maxvcount = max_vnodes / 2; /* limit ourselves to half the total */
-#else
- afs_maxvcount = nvnode / 2; /* limit ourselves to half the total */
-#endif
if (astatSize < afs_maxvcount) {
afs_maxvcount = astatSize;
}
}
-#else /* AFS_OSF_ENV */
+#else /* AFS_LINUX22_ENV */
freeVCList = NULL;
#endif
AFS_RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
LOCK_INIT(&afs_xvcb, "afs_xvcb");
-#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
+#if !defined(AFS_LINUX22_ENV)
/* 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);
+ memset(tvp, 0, sizeof(struct vcache) * astatSize);
Initial_freeVCList = tvp;
freeVCList = &(tvp[0]);
tvp[i].nextfree = &(tvp[i + 1]);
}
tvp[astatSize - 1].nextfree = NULL;
-#ifdef KERNEL_HAVE_PIN
+# ifdef KERNEL_HAVE_PIN
pin((char *)tvp, astatSize * sizeof(struct vcache)); /* XXX */
-#endif
+# endif
#endif
#if defined(AFS_SGI_ENV)
shutdown_vcache(void)
{
int i;
- struct afs_cbr *tsp, *nsp;
+ struct afs_cbr *tsp;
/*
- * XXX We may potentially miss some of the vcaches because if when there're no
- * free vcache entries and all the vcache entries are active ones then we allocate
- * an additional one - admittedly we almost never had that occur.
+ * XXX We may potentially miss some of the vcaches because if when
+ * there are no free vcache entries and all the vcache entries are active
+ * ones then we allocate an additional one - admittedly we almost never
+ * had that occur.
*/
{
}
afs_cbrSpace = 0;
-#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
+#if !defined(AFS_LINUX22_ENV)
afs_osi_Free(Initial_freeVCList, afs_cacheStats * sizeof(struct vcache));
-#endif
-#ifdef KERNEL_HAVE_PIN
+
+# ifdef KERNEL_HAVE_PIN
unpin(Initial_freeVCList, afs_cacheStats * sizeof(struct vcache));
-#endif
+# endif
-#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
freeVCList = Initial_freeVCList = 0;
#endif
+
AFS_RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
LOCK_INIT(&afs_xvcb, "afs_xvcb");
QInit(&VLRU);
QInit(&afs_vhashTV[i]);
}
-void afs_DisconGiveUpCallbacks() {
+void
+afs_DisconGiveUpCallbacks(void) {
int i;
struct vcache *tvc;
int nq=0;
/* Somehow, walk the set of vcaches, with each one coming out as tvc */
for (i = 0; i < VCSIZE; i++) {
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
- if ((tvc->f.states & CRO) == 0 && tvc->callback) {
- afs_QueueVCB(tvc);
+ if (afs_QueueVCB(tvc)) {
tvc->callback = NULL;
nq++;
}
}
}
- /*printf("%d callbacks to be discarded. queued ... ", nq);*/
- afs_FlushVCBs(0);
-
+
ReleaseWriteLock(&afs_xvcache);
- /*printf("gone\n");*/
+
+ afs_FlushVCBs(1);
}
/*!
* disconnected mode to tidy up during reconnection
*
*/
-void afs_ClearAllStatdFlag() {
+void
+afs_ClearAllStatdFlag(void) {
int i;
struct vcache *tvc;
git://git.openafs.org / openafs.git / blobdiff