#include "afs/afs_cbqueue.h"
#include "afs/afs_osidnlc.h"
-#ifdef AFS_OSF_ENV
+#if defined(AFS_OSF_ENV) || 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 */
/* Exported variables */
afs_rwlock_t afs_xvcache; /*Lock: alloc new stat cache entries */
+afs_rwlock_t afs_xvreclaim; /*Lock: entries reclaimed, not on free list */
afs_lock_t afs_xvcb; /*Lock: fids on which there are callbacks */
-struct vcache *freeVCList; /*Free list for stat cache entries */
-struct vcache *Initial_freeVCList; /*Initial list for above */
+#if !defined(AFS_LINUX22_ENV)
+static struct vcache *freeVCList; /*Free list for stat cache entries */
+struct vcache *ReclaimedVCList; /*Reclaimed list for stat entries */
+static struct vcache *Initial_freeVCList; /*Initial list for above */
+#endif
struct afs_q VLRU; /*vcache LRU */
afs_int32 vcachegen = 0;
unsigned int afs_paniconwarn = 0;
struct vcache *afs_vhashT[VCSIZE];
+struct afs_q afs_vhashTV[VCSIZE];
static struct afs_cbr *afs_cbrHashT[CBRSIZE];
afs_int32 afs_bulkStatsLost;
int afs_norefpanic = 0;
afs_FlushVCache(struct vcache *avc, int *slept)
{ /*afs_FlushVCache */
- register afs_int32 i, code;
- register struct vcache **uvc, *wvc;
+ afs_int32 i, code;
+ struct vcache **uvc, *wvc;
*slept = 0;
AFS_STATCNT(afs_FlushVCache);
code = EBUSY;
goto bad;
}
+#if !defined(AFS_LINUX22_ENV)
if (avc->nextfree || !avc->vlruq.prev || !avc->vlruq.next) { /* qv afs.h */
refpanic("LRU vs. Free inconsistency");
}
+#endif
avc->states |= CVFlushed;
/* pull the entry out of the lruq and put it on the free list */
QRemove(&avc->vlruq);
break;
}
}
- if (!wvc)
- osi_Panic("flushvcache"); /* not in correct hash bucket */
+
+ /* remove entry from the volume hash table */
+ QRemove(&avc->vhashq);
+
if (avc->mvid)
osi_FreeSmallSpace(avc->mvid);
avc->mvid = (struct VenusFid *)0;
afs_osi_Free(avc->linkData, strlen(avc->linkData) + 1);
avc->linkData = NULL;
}
-#if defined(AFS_XBSD_ENV)
+#if defined(AFS_XBSD_ENV) || defined(AFS_DARWIN_ENV)
/* OK, there are no internal vrefCounts, so there shouldn't
* be any more refs here. */
if (avc->v) {
+#ifdef AFS_DARWIN80_ENV
+ vnode_clearfsnode(AFSTOV(avc));
+ vnode_removefsref(AFSTOV(avc));
+#else
avc->v->v_data = NULL; /* remove from vnode */
- avc->v = NULL; /* also drop the ptr to vnode */
+#endif
+ AFSTOV(avc) = NULL; /* also drop the ptr to vnode */
}
#endif
+#ifdef AFS_SUN510_ENV
+ /* As we use private vnodes, cleanup is up to us */
+ vn_reinit(AFSTOV(avc));
+#endif
afs_FreeAllAxs(&(avc->Access));
/* we can't really give back callbacks on RO files, since the
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
else
afs_evenZaps++;
-#if !defined(AFS_OSF_ENV)
+#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_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");
}
+ avc->states |= CVFlushed;
#else
/* This should put it back on the vnode free list since usecount is 1 */
afs_vcount--;
vSetType(avc, VREG);
- if (VREFCOUNT(avc) > 0) {
+ if (VREFCOUNT_GT(avc,0)) {
+#if defined(AFS_OSF_ENV)
VN_UNLOCK(AFSTOV(avc));
+#endif
AFS_RELE(AFSTOV(avc));
} 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 */
- avc->states |= CVFlushed;
return 0;
bad:
MReleaseWriteLock(&afs_xvcb);
}
+void
+afs_FlushReclaimedVcaches(void)
+{
+#if !defined(AFS_LINUX22_ENV)
+ struct vcache *tvc;
+ int code, fv_slept;
+ struct vcache *tmpReclaimedVCList = NULL;
+
+ ObtainWriteLock(&afs_xvreclaim, 76);
+ while (ReclaimedVCList) {
+ tvc = ReclaimedVCList; /* take from free list */
+ ReclaimedVCList = tvc->nextfree;
+ tvc->nextfree = NULL;
+ code = afs_FlushVCache(tvc, &fv_slept);
+ if (code) {
+ /* Ok, so, if we got code != 0, uh, wtf do we do? */
+ /* Probably, build a temporary list and then put all back when we
+ get to the end of the list */
+ /* This is actually really crappy, but we need to not leak these.
+ We probably need a way to be smarter about this. */
+ tvc->nextfree = tmpReclaimedVCList;
+ tmpReclaimedVCList = tvc;
+ printf("Reclaim list flush %lx failed: %d\n", (unsigned long) tvc, code);
+ }
+ }
+ if (tmpReclaimedVCList)
+ ReclaimedVCList = tmpReclaimedVCList;
+
+ ReleaseWriteLock(&afs_xvreclaim);
+#endif
+}
+
/*
* afs_NewVCache
*
afs_NewVCache(struct VenusFid *afid, struct server *serverp)
{
struct vcache *tvc;
- afs_int32 i;
+ afs_int32 i, j;
afs_int32 anumber = VCACHE_FREE;
#ifdef AFS_AIX_ENV
struct gnode *gnodepnt;
#endif
-#ifdef AFS_MACH_ENV
- struct vm_info *vm_info_ptr;
-#endif /* AFS_MACH_ENV */
#ifdef AFS_OSF_ENV
struct vcache *nvc;
#endif /* AFS_OSF_ENV */
int code, fv_slept;
AFS_STATCNT(afs_NewVCache);
-#ifdef AFS_OSF_ENV
-#ifdef AFS_OSF30_ENV
- if (afs_vcount >= afs_maxvcount) {
+
+ afs_FlushReclaimedVcaches();
+
+#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
+#if defined(AFS_OSF30_ENV) || defined(AFS_LINUX22_ENV)
+ if (afs_vcount >= afs_maxvcount)
#else
/*
* If we are using > 33 % of the total system vnodes for AFS vcache
* 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;
for (tq = VLRU.prev; tq != &VLRU && anumber > 0; tq = uq) {
tvc = QTOV(tq);
uq = QPrev(tq);
- if (tvc->states & CVFlushed)
+ if (tvc->states & CVFlushed) {
refpanic("CVFlushed on VLRU");
- else if (i++ > afs_maxvcount)
+ } else if (i++ > afs_maxvcount) {
refpanic("Exceeded pool of AFS vnodes(VLRU cycle?)");
- else if (QNext(uq) != tq)
+ } else if (QNext(uq) != tq) {
refpanic("VLRU inconsistent");
- else if (VREFCOUNT(tvc) < 1)
+ } else if (!VREFCOUNT_GT(tvc,0)) {
refpanic("refcnt 0 on VLRU");
+ }
+
+#if defined(AFS_LINUX22_ENV)
+ if (tvc != afs_globalVp && VREFCOUNT(tvc) > 1 && tvc->opens == 0) {
+ struct dentry *dentry;
+ struct list_head *cur, *head;
+ AFS_FAST_HOLD(tvc);
+ AFS_GUNLOCK();
+#if defined(AFS_LINUX24_ENV)
+ spin_lock(&dcache_lock);
+#endif
+ head = &(AFSTOV(tvc))->i_dentry;
+
+restart:
+ cur = head;
+ while ((cur = cur->next) != head) {
+ dentry = list_entry(cur, struct dentry, d_alias);
+
+ if (d_unhashed(dentry))
+ continue;
+
+ dget_locked(dentry);
- if (VREFCOUNT(tvc) == 1 && tvc->opens == 0
+#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);
+#if defined(AFS_LINUX24_ENV)
+ spin_lock(&dcache_lock);
+#endif
+ goto restart;
+ }
+#if defined(AFS_LINUX24_ENV)
+ spin_unlock(&dcache_lock);
+#endif
+ inuse:
+ AFS_GLOCK();
+ AFS_FAST_RELE(tvc);
+ }
+#endif
+
+ if (VREFCOUNT_GT(tvc,0) && !VREFCOUNT_GT(tvc,1) &&
+ tvc->opens == 0
&& (tvc->states & CUnlinkedDel) == 0) {
code = afs_FlushVCache(tvc, &fv_slept);
if (code == 0) {
break;
}
if (anumber == VCACHE_FREE) {
- printf("NewVCache: warning none freed, using %d of %d\n",
+ printf("afs_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 */
+ printf("afs_NewVCache - none freed\n");
+ return NULL;
}
}
}
+#if defined(AFS_LINUX22_ENV)
+{
+ struct inode *ip;
+
+ AFS_GUNLOCK();
+ ip = new_inode(afs_globalVFS);
+ if (!ip)
+ osi_Panic("afs_NewVCache: no more inodes");
+ AFS_GLOCK();
+#if defined(STRUCT_SUPER_HAS_ALLOC_INODE)
+ tvc = VTOAFS(ip);
+#else
+ tvc = afs_osi_Alloc(sizeof(struct vcache));
+ ip->u.generic_ip = tvc;
+ tvc->v = ip;
+#endif
+}
+#else
AFS_GUNLOCK();
if (getnewvnode(MOUNT_AFS, &Afs_vnodeops, &nvc)) {
/* What should we do ???? */
tvc = nvc;
tvc->nextfree = NULL;
+#endif
afs_vcount++;
#else /* AFS_OSF_ENV */
/* pull out a free cache entry */
refpanic("Increase -stat parameter of afsd(VLRU cycle?)");
} 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. */
+ } else if (tvc->states & CVInit) {
+ continue;
+ }
+
+ if (!VREFCOUNT_GT(tvc,0)
+#if defined(AFS_DARWIN_ENV) && !defined(UKERNEL) && !defined(AFS_DARWIN80_ENV)
+ || ((VREFCOUNT(tvc) == 1) &&
+ (UBCINFOEXISTS(AFSTOV(tvc))))
+#endif
+ && tvc->opens == 0 && (tvc->states & CUnlinkedDel) == 0) {
+#if defined (AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
+#ifdef AFS_DARWIN80_ENV
+ vnode_t tvp = AFSTOV(tvc);
+ /* VREFCOUNT_GT only sees usecounts, not iocounts */
+ /* so this may fail to actually recycle the vnode now */
+ /* must call vnode_get to avoid races. */
+ if (vnode_get(tvp) == 0) {
+ fv_slept=1;
+ /* must release lock, since vnode_put will immediately
+ reclaim if there are no other users */
+ ReleaseWriteLock(&afs_xvcache);
+ AFS_GUNLOCK();
+ vnode_recycle(tvp);
+ vnode_put(tvp);
+ AFS_GLOCK();
+ ObtainWriteLock(&afs_xvcache, 336);
}
- }
-#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
- DARWIN_REFBASE
+ /* we can't use the vnode_recycle return value to figure
+ * this out, since the iocount we have to hold makes it
+ * always "fail" */
+ if (AFSTOV(tvc) == tvp)
+ code = EBUSY;
+ else
+ code = 0;
#else
- 0
+ /*
+ * 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.
+ */
+ AFS_GUNLOCK();
+ vgone(AFSTOV(tvc));
+ fv_slept = 0;
+ code = 0;
+ AFS_GLOCK();
#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);
+ code = afs_FlushVCache(tvc, &fv_slept);
#endif
if (code == 0) {
anumber--;
/* none free, making one is better than a panic */
afs_stats_cmperf.vcacheXAllocs++; /* count in case we have a leak */
tvc = (struct vcache *)afs_osi_Alloc(sizeof(struct vcache));
+#if defined(AFS_DARWIN_ENV) && !defined(UKERNEL)
+ tvc->v = NULL; /* important to clean this, or use memset 0 */
+#endif
#ifdef KERNEL_HAVE_PIN
pin((char *)tvc, sizeof(struct vcache)); /* XXX */
#endif
-#ifdef AFS_MACH_ENV
- /* In case it still comes here we need to fill this */
- tvc->v.v_vm_info = VM_INFO_NULL;
- vm_info_init(tvc->v.v_vm_info);
- /* perhaps we should also do close_flush on non-NeXT mach systems;
- * who knows; we don't currently have the sources.
- */
-#endif /* AFS_MACH_ENV */
#if defined(AFS_SGI_ENV)
{
char name[METER_NAMSZ];
}
#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 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)
+#if !defined(AFS_SGI_ENV) && !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
memset((char *)tvc, 0, sizeof(struct vcache));
#else
tvc->uncred = 0;
RWLOCK_INIT(&tvc->vlock, "vcache vlock");
#endif /* defined(AFS_SUN5_ENV) */
-#ifdef AFS_MACH_ENV
- tvc->v.v_vm_info = vm_info_ptr;
- tvc->v.v_vm_info->pager = MEMORY_OBJECT_NULL;
-#endif /* AFS_MACH_ENV */
+ tvc->parentVnode = 0;
+ tvc->mvid = NULL;
+ tvc->linkData = NULL;
+ tvc->cbExpires = 0;
+ tvc->opens = 0;
+ tvc->execsOrWriters = 0;
+ tvc->flockCount = 0;
+ tvc->anyAccess = 0;
+ tvc->states = CVInit;
+ tvc->last_looker = 0;
+ tvc->fid = *afid;
+ tvc->asynchrony = -1;
+ tvc->vc_error = 0;
+#ifdef AFS_TEXT_ENV
+ tvc->flushDV.low = tvc->flushDV.high = AFS_MAXDV;
+#endif
+ hzero(tvc->mapDV);
+ tvc->truncPos = AFS_NOTRUNC; /* don't truncate until we need to */
+ hzero(tvc->m.DataVersion); /* in case we copy it into flushDV */
+ tvc->Access = NULL;
+ tvc->callback = serverp; /* to minimize chance that clear
+ * request is lost */
+
+ i = VCHash(afid);
+ j = VCHashV(afid);
+
+ tvc->hnext = afs_vhashT[i];
+ afs_vhashT[i] = tvc;
+ QAdd(&afs_vhashTV[j], &tvc->vhashq);
+
+ if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
+ refpanic("NewVCache VLRU inconsistent");
+ }
+ QAdd(&VLRU, &tvc->vlruq); /* put in lruq */
+ if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
+ refpanic("NewVCache VLRU inconsistent2");
+ }
+ if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
+ refpanic("NewVCache VLRU inconsistent3");
+ }
+ if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
+ refpanic("NewVCache VLRU inconsistent4");
+ }
+ vcachegen++;
+ /* it should now be safe to drop the xvcache lock */
#ifdef AFS_OBSD_ENV
+ ReleaseWriteLock(&afs_xvcache);
AFS_GUNLOCK();
afs_nbsd_getnewvnode(tvc); /* includes one refcount */
AFS_GLOCK();
+ ObtainWriteLock(&afs_xvcache,337);
+ lockinit(&tvc->rwlock, PINOD, "vcache", 0, 0);
+#endif
+#ifdef AFS_DARWIN_ENV
+ ReleaseWriteLock(&afs_xvcache);
+ AFS_GUNLOCK();
+ afs_darwin_getnewvnode(tvc); /* includes one refcount */
+ AFS_GLOCK();
+ ObtainWriteLock(&afs_xvcache,338);
+#ifdef AFS_DARWIN80_ENV
+ LOCKINIT(tvc->rwlock);
+#else
lockinit(&tvc->rwlock, PINOD, "vcache", 0, 0);
#endif
+#endif
#ifdef AFS_FBSD_ENV
{
struct vnode *vp;
+ ReleaseWriteLock(&afs_xvcache);
AFS_GUNLOCK();
-#ifdef AFS_FBSD50_ENV
+#if defined(AFS_FBSD60_ENV)
+ if (getnewvnode(MOUNT_AFS, afs_globalVFS, &afs_vnodeops, &vp))
+#elif defined(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();
+ ObtainWriteLock(&afs_xvcache,339);
if (tvc->v != NULL) {
/* I'd like to know if this ever happens...
* We don't drop global for the rest of this function,
lockinit(&tvc->rwlock, PINOD, "vcache", 0, 0);
}
#endif
- tvc->parentVnode = 0;
- tvc->mvid = NULL;
- tvc->linkData = NULL;
- tvc->cbExpires = 0;
- tvc->opens = 0;
- tvc->execsOrWriters = 0;
- tvc->flockCount = 0;
- tvc->anyAccess = 0;
- tvc->states = 0;
- tvc->last_looker = 0;
- tvc->fid = *afid;
- tvc->asynchrony = -1;
- tvc->vc_error = 0;
- afs_symhint_inval(tvc);
-#ifdef AFS_TEXT_ENV
- tvc->flushDV.low = tvc->flushDV.high = AFS_MAXDV;
-#endif
- hzero(tvc->mapDV);
- tvc->truncPos = AFS_NOTRUNC; /* don't truncate until we need to */
- hzero(tvc->m.DataVersion); /* in case we copy it into flushDV */
-#if defined(AFS_LINUX22_ENV)
- {
- struct inode *ip = AFSTOI(tvc);
- struct address_space *mapping = &ip->i_data;
-
-#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
+#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
/* Hold it for the LRU (should make count 2) */
VN_HOLD(AFSTOV(tvc));
#else /* AFS_OSF_ENV */
-#if !defined(AFS_XBSD_ENV)
+#if !(defined (AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV))
VREFCOUNT_SET(tvc, 1); /* us */
#endif /* AFS_XBSD_ENV */
#endif /* AFS_OSF_ENV */
tvc->vmh = tvc->segid = NULL;
tvc->credp = NULL;
#endif
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV) || defined(AFS_SUN5_ENV)
+#ifdef AFS_BOZONLOCK_ENV
#if defined(AFS_SUN5_ENV)
rw_init(&tvc->rwlock, "vcache rwlock", RW_DEFAULT, NULL);
afs_BozonInit(&tvc->pvnLock, tvc);
#endif
- tvc->Access = NULL;
- tvc->callback = serverp; /* to minimize chance that clear
- * request is lost */
/* initialize vnode data, note vrefCount is v.v_count */
#ifdef AFS_AIX_ENV
/* Don't forget to free the gnode space */
#else
SetAfsVnode(AFSTOV(tvc));
#endif /* AFS_SGI64_ENV */
-#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;
- /* VLISTNONE(&tvc->v); */
- 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 = 2;
if (afs_globalVFS == 0)
osi_Panic("afs globalvfs");
+#if !defined(AFS_LINUX22_ENV)
vSetVfsp(tvc, afs_globalVFS);
+#endif
vSetType(tvc, VREG);
#ifdef AFS_AIX_ENV
tvc->v.v_vfsnext = afs_globalVFS->vfs_vnodes; /* link off vfs */
tvc->v.v_next = gnodepnt->gn_vnode; /*Single vnode per gnode for us! */
gnodepnt->gn_vnode = &tvc->v;
#endif
-#ifdef AFS_DEC_ENV
- tvc->v.g_dev = ((struct mount *)afs_globalVFS->vfs_data)->m_dev;
-#endif
#if defined(AFS_DUX40_ENV)
insmntque(tvc, afs_globalVFS, &afs_ubcops);
#else
vn_initlist((struct vnlist *)&tvc->v);
tvc->lastr = 0;
#endif /* AFS_SGI_ENV */
- tvc->h1.dchint = 0;
+ tvc->dchint = NULL;
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 = 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");
- }
- QAdd(&VLRU, &tvc->vlruq); /* put in lruq */
- if ((VLRU.next->prev != &VLRU) || (VLRU.prev->next != &VLRU)) {
- refpanic("NewVCache VLRU inconsistent2");
- }
- if (tvc->vlruq.next->prev != &(tvc->vlruq)) {
- refpanic("NewVCache VLRU inconsistent3");
- }
- if (tvc->vlruq.prev->next != &(tvc->vlruq)) {
- refpanic("NewVCache VLRU inconsistent4");
- }
- vcachegen++;
+ tvc->states &=~ CVInit;
+ afs_osi_Wakeup(&tvc->states);
return tvc;
ObtainReadLock(&afs_xvcache);
for (i = 0; i < VCSIZE; i++) {
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
+ if (tvc->states & CVInit) continue;
+#ifdef AFS_DARWIN80_ENV
+ if (tvc->states & CDeadVnode &&
+ (tvc->states & (CCore|CUnlinkedDel) ||
+ tvc->flockCount)) panic("Dead vnode has core/unlinkedel/flock");
+#endif
if (doflocks && tvc->flockCount != 0) {
/* if this entry has an flock, send a keep-alive call out */
osi_vnhold(tvc, 0);
AFS_STATS_FS_RPCIDX_EXTENDLOCK, SHARED_LOCK, NULL));
ReleaseWriteLock(&tvc->lock);
- ObtainReadLock(&afs_xvcache);
- AFS_FAST_RELE(tvc);
+#ifdef AFS_DARWIN80_ENV
+ AFS_FAST_RELE(tvc);
+ ObtainReadLock(&afs_xvcache);
+#else
+ ObtainReadLock(&afs_xvcache);
+ AFS_FAST_RELE(tvc);
+#endif
}
didCore = 0;
if ((tvc->states & CCore) || (tvc->states & CUnlinkedDel)) {
*/
osi_vnhold(tvc, 0);
ReleaseReadLock(&afs_xvcache);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
+#ifdef AFS_BOZONLOCK_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);
+ osi_Assert(VREFCOUNT_GT(tvc,0));
AFS_RWLOCK((vnode_t *) tvc, VRWLOCK_WRITE);
#endif
ObtainWriteLock(&tvc->lock, 52);
tvc->execsOrWriters);
code = afs_StoreOnLastReference(tvc, &ureq);
ReleaseWriteLock(&tvc->lock);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
+#ifdef AFS_BOZONLOCK_ENV
afs_BozonUnlock(&tvc->pvnLock, tvc);
#endif
hzero(tvc->flushDV);
* Ignore errors
*/
ReleaseWriteLock(&tvc->lock);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
+#ifdef AFS_BOZONLOCK_ENV
afs_BozonUnlock(&tvc->pvnLock, tvc);
#endif
#if defined(AFS_SGI_ENV)
} else {
/* lost (or won, perhaps) the race condition */
ReleaseWriteLock(&tvc->lock);
-#if defined(AFS_SUN_ENV) || defined(AFS_ALPHA_ENV)
+#ifdef AFS_BOZONLOCK_ENV
afs_BozonUnlock(&tvc->pvnLock, tvc);
#endif
}
#if defined(AFS_SGI_ENV)
AFS_RWUNLOCK((vnode_t *) tvc, VRWLOCK_WRITE);
#endif
- ObtainReadLock(&afs_xvcache);
+#ifdef AFS_DARWIN80_ENV
AFS_FAST_RELE(tvc);
if (didCore) {
-#ifdef AFS_GFS_ENV
- VREFCOUNT_DEC(tvc);
+ AFS_RELE(AFSTOV(tvc));
+ /* Matches write code setting CCore flag */
+ crfree(cred);
+ }
+ ObtainReadLock(&afs_xvcache);
#else
+ ObtainReadLock(&afs_xvcache);
+ AFS_FAST_RELE(tvc);
+ if (didCore) {
AFS_RELE(AFSTOV(tvc));
-#endif
/* Matches write code setting CCore flag */
crfree(cred);
}
- }
-#ifdef AFS_DARWIN_ENV
- 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_VerifyVCache
*
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 */
-#endif
-#ifdef AFS_DARWIN_ENV
- osi_VM_Setup(avc, 1);
-#endif
-
} /*afs_ProcessFS */
ObtainSharedLock(&afs_xvcache, 5);
- tvc = afs_FindVCache(afid, &retry, DO_STATS | DO_VLRU);
+ tvc = afs_FindVCache(afid, &retry, DO_STATS | DO_VLRU | IS_SLOCK);
if (tvc && retry) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
ReleaseSharedLock(&afs_xvcache);
if (tvc) {
if (cached)
*cached = 1;
+ osi_Assert((tvc->states & CVInit) == 0);
if (tvc->states & CStatd) {
ReleaseSharedLock(&afs_xvcache);
return tvc;
newvcache = 1;
ConvertWToSLock(&afs_xvcache);
+ if (!tvc)
+ {
+ ReleaseSharedLock(&afs_xvcache);
+ return NULL;
+ }
+
afs_stats_cmperf.vcacheMisses++;
}
ObtainWriteLock(&tvc->lock, 54);
if (tvc->states & CStatd) {
-#ifdef AFS_LINUX22_ENV
- vcache2inode(tvc);
-#endif
ReleaseWriteLock(&tvc->lock);
-#ifdef AFS_DARWIN_ENV
- osi_VM_Setup(tvc, 0);
-#endif
return tvc;
}
#if defined(AFS_OSF_ENV)
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
+#ifdef AFS_DARWIN80_ENV
+/* Darwin 8.0 only has bufs in nfs, so we shouldn't have to worry about them.
+ What about ubc? */
+#else
+#if defined(AFS_DARWIN_ENV) || defined(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
* to vinvalbuf; otherwise, we leave it alone.
*/
{
- struct vnode *vp;
+ struct vnode *vp = AFSTOV(tvc);
int iheldthelock;
- vp = AFSTOV(tvc);
-#ifdef AFS_FBSD50_ENV
+#if defined(AFS_DARWIN_ENV)
+ iheldthelock = VOP_ISLOCKED(vp);
+ if (!iheldthelock)
+ vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, current_proc());
+ /* this is messy. we can call fsync which will try to reobtain this */
+ if (VTOAFS(vp) == tvc)
+ ReleaseWriteLock(&tvc->lock);
+ if (UBCINFOEXISTS(vp)) {
+ vinvalbuf(vp, V_SAVE, &afs_osi_cred, current_proc(), PINOD, 0);
+ }
+ if (VTOAFS(vp) == tvc)
+ ObtainWriteLock(&tvc->lock, 954);
+ if (!iheldthelock)
+ VOP_UNLOCK(vp, LK_EXCLUSIVE, current_proc());
+#elif defined(AFS_FBSD60_ENV)
+ iheldthelock = VOP_ISLOCKED(vp, curthread);
+ if (!iheldthelock)
+ vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, curthread);
+ vinvalbuf(vp, V_SAVE, curthread, PINOD, 0);
+ if (!iheldthelock)
+ VOP_UNLOCK(vp, LK_EXCLUSIVE, curthread);
+#elif defined(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
+#elif defined(AFS_FBSD40_ENV)
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);
+#elif defined(AFS_OBSD_ENV)
+ iheldthelock = VOP_ISLOCKED(vp, curproc);
+ if (!iheldthelock)
+ VOP_LOCK(vp, LK_EXCLUSIVE | LK_RETRY, curproc);
+ uvm_vnp_uncache(vp);
+ if (!iheldthelock)
+ VOP_UNLOCK(vp, 0, curproc);
#endif
}
#endif
+#endif
ObtainWriteLock(&afs_xcbhash, 464);
tvc->states &= ~CUnique;
if (code) {
ReleaseWriteLock(&tvc->lock);
- ObtainReadLock(&afs_xvcache);
- AFS_FAST_RELE(tvc);
- ReleaseReadLock(&afs_xvcache);
+ afs_PutVCache(tvc);
return NULL;
}
tvc->states &= ~CUnique;
ReleaseReadLock(&tvc->lock);
+ afs_PutVCache(tvc);
ObtainReadLock(&afs_xvcache);
- AFS_FAST_RELE(tvc);
}
/* if (tvc) */
ReleaseReadLock(&afs_xvcache);
#endif
ObtainSharedLock(&afs_xvcache, 6);
- tvc = afs_FindVCache(&nfid, &retry, DO_VLRU /* no xstats now */ );
+ tvc = afs_FindVCache(&nfid, &retry, DO_VLRU | IS_SLOCK/* no xstats now */ );
if (tvc && retry) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
ReleaseSharedLock(&afs_xvcache);
tvc = afs_NewVCache(&nfid, serverp);
newvcache = 1;
ConvertWToSLock(&afs_xvcache);
+ if (!tvc)
+ {
+ ReleaseSharedLock(&afs_xvcache);
+ return NULL;
+ }
}
ReleaseSharedLock(&afs_xvcache);
if (tvp)
afs_PutVolume(tvp, READ_LOCK);
ReleaseWriteLock(&tvc->lock);
- ObtainReadLock(&afs_xvcache);
- AFS_FAST_RELE(tvc);
- ReleaseReadLock(&afs_xvcache);
+ afs_PutVCache(tvc);
return NULL;
}
struct AFSCallBack CallBack;
struct AFSVolSync tsync;
int origCBs = 0;
+#ifdef AFS_OSF_ENV
+ int vg;
+#endif
start = osi_Time();
afid->Fid.Unique = tvolp->rootUnique;
}
+ rootvc_loop:
ObtainSharedLock(&afs_xvcache, 7);
i = VCHash(afid);
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if (!FidCmp(&(tvc->fid), afid)) {
+ if (tvc->states & CVInit) {
+ ReleaseSharedLock(&afs_xvcache);
+ afs_osi_Sleep(&tvc->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 */
- int vg;
AFS_GUNLOCK();
vg = vget(AFSTOV(tvc)); /* this bumps ref count */
AFS_GLOCK();
if (vg)
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;
- }
+#ifdef AFS_DARWIN80_ENV
+ if (tvc->states & CDeadVnode) {
+ ReleaseSharedLock(&afs_xvcache);
+ afs_osi_Sleep(&tvc->states);
+ goto rootvc_loop;
+ }
+ if (vnode_get(AFSTOV(tvc))) /* this bumps ref count */
+ continue;
#endif
break;
}
if (tvc)
AFS_RELE(AFSTOV(tvc));
#endif
- tvc = NULL;
getNewFid = 1;
ReleaseSharedLock(&afs_xvcache);
+#ifdef AFS_DARWIN80_ENV
+ if (tvc) {
+ AFS_GUNLOCK();
+ vnode_put(AFSTOV(tvc));
+ AFS_GLOCK();
+ }
+#endif
+ tvc = NULL;
goto newmtpt;
}
UpgradeSToWLock(&afs_xvcache, 23);
/* no cache entry, better grab one */
tvc = afs_NewVCache(afid, NULL);
+ if (!tvc)
+ {
+ ReleaseWriteLock(&afs_xvcache);
+ return NULL;
+ }
newvcache = 1;
afs_stats_cmperf.vcacheMisses++;
} else {
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);
+ afs_PutVCache(tvc);
return NULL;
}
XSTATS_DECLS;
do {
tc = afs_Conn(afid, areq, SHARED_LOCK);
- avc->quick.stamp = 0;
- avc->h1.dchint = NULL; /* invalidate hints */
+ avc->dchint = NULL; /* invalidate hints */
if (tc) {
avc->callback = tc->srvr->server;
start = osi_Time();
loop:
ObtainSharedLock(&afs_xvcache, 8);
- tvc = afs_FindVCache(afid, &retry, DO_VLRU /* no stats */ );
+ tvc = afs_FindVCache(afid, &retry, DO_VLRU| IS_SLOCK /* no stats */ );
if (tvc && retry) {
#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
ReleaseSharedLock(&afs_xvcache);
tvc = afs_NewVCache(afid, NULL);
newvcache = 1;
ConvertWToSLock(&afs_xvcache);
+ if (!tvc)
+ {
+ ReleaseSharedLock(&afs_xvcache);
+ return NULL;
+ }
}
ReleaseSharedLock(&afs_xvcache);
afs_PutVCache(register struct vcache *avc)
{
AFS_STATCNT(afs_PutVCache);
+#ifdef AFS_DARWIN80_ENV
+ vnode_put(AFSTOV(avc));
+ AFS_FAST_RELE(avc);
+#else
/*
* Can we use a read lock here?
*/
ObtainReadLock(&afs_xvcache);
AFS_FAST_RELE(avc);
ReleaseReadLock(&afs_xvcache);
+#endif
} /*afs_PutVCache */
+
+static void findvc_sleep(struct vcache *avc, int flag) {
+ if (flag & IS_SLOCK) {
+ ReleaseSharedLock(&afs_xvcache);
+ } else {
+ if (flag & IS_WLOCK) {
+ ReleaseWriteLock(&afs_xvcache);
+ } else {
+ ReleaseReadLock(&afs_xvcache);
+ }
+ }
+ afs_osi_Sleep(&avc->states);
+ if (flag & IS_SLOCK) {
+ ObtainSharedLock(&afs_xvcache, 341);
+ } else {
+ if (flag & IS_WLOCK) {
+ ObtainWriteLock(&afs_xvcache, 343);
+ } else {
+ ObtainReadLock(&afs_xvcache);
+ }
+ }
+}
/*
* afs_FindVCache
*
register struct vcache *tvc;
afs_int32 i;
+#if defined( AFS_OSF_ENV)
+ int vg;
+#endif
AFS_STATCNT(afs_FindVCache);
+ findloop:
i = VCHash(afid);
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
if (FidMatches(afid, tvc)) {
+ if (tvc->states & CVInit) {
+ findvc_sleep(tvc, flag);
+ goto findloop;
+ }
#ifdef AFS_OSF_ENV
/* Grab this vnode, possibly reactivating from the free list */
- int vg;
AFS_GUNLOCK();
vg = vget(AFSTOV(tvc));
AFS_GLOCK();
if (vg)
continue;
#endif /* AFS_OSF_ENV */
+#ifdef AFS_DARWIN80_ENV
+ if (tvc->states & CDeadVnode) {
+ findvc_sleep(tvc, flag);
+ goto findloop;
+ }
+ if (vnode_get(AFSTOV(tvc)))
+ continue;
+#endif
break;
}
}
if (retry && *retry)
return 0;
#endif
+#if defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
+ tvc->states |= CUBCinit;
+ AFS_GUNLOCK();
+ if (UBCINFOMISSING(AFSTOV(tvc)) ||
+ UBCINFORECLAIMED(AFSTOV(tvc))) {
+ ubc_info_init(AFSTOV(tvc));
+ }
+ AFS_GLOCK();
+ tvc->states &= ~CUBCinit;
+#endif
/*
* only move to front of vlru if we have proper vcache locking)
*/
else
afs_stats_cmperf.vremoteAccesses++;
}
-#ifdef AFS_LINUX22_ENV
- if (tvc && (tvc->states & CStatd))
- vcache2inode(tvc); /* mainly to reset i_nlink */
-#endif
-#ifdef AFS_DARWIN_ENV
- if (tvc)
- osi_VM_Setup(tvc, 0);
-#endif
return tvc;
} /*afs_FindVCache */
afs_int32 i;
afs_int32 count = 0;
struct vcache *found_tvc = NULL;
+#ifdef AFS_OSF_ENV
+ int vg;
+#endif
AFS_STATCNT(afs_FindVCache);
-#if defined(AFS_SGI_ENV) && !defined(AFS_SGI53_ENV)
loop:
-#endif
ObtainSharedLock(&afs_xvcache, 331);
&& (tvc->fid.Fid.Volume == afid->Fid.Volume)
&& ((tvc->fid.Fid.Unique & 0xffffff) == afid->Fid.Unique)
&& (tvc->fid.Cell == afid->Cell)) {
+ if (tvc->states & CVInit) {
+ int lock;
+ ReleaseSharedLock(&afs_xvcache);
+ afs_osi_Sleep(&tvc->states);
+ goto loop;
+ }
#ifdef AFS_OSF_ENV
/* Grab this vnode, possibly reactivating from the free list */
- int vg;
AFS_GUNLOCK();
vg = vget(AFSTOV(tvc));
AFS_GLOCK();
continue;
}
#endif /* AFS_OSF_ENV */
+#ifdef AFS_DARWIN80_ENV
+ if (tvc->states & CDeadVnode) {
+ ReleaseSharedLock(&afs_xvcache);
+ afs_osi_Sleep(&tvc->states);
+ goto loop;
+ }
+ if (vnode_get(AFSTOV(tvc))) {
+ /* This vnode no longer exists. */
+ continue;
+ }
+#endif /* AFS_DARWIN80_ENV */
count++;
if (found_tvc) {
/* Duplicates */
#endif
afs_duplicate_nfs_fids++;
ReleaseSharedLock(&afs_xvcache);
+#ifdef AFS_DARWIN80_ENV
+ /* Drop our reference counts. */
+ vnode_put(AFSTOV(tvc));
+ vnode_put(AFSTOV(found_tvc));
+#endif
return count;
}
found_tvc = tvc;
{
register struct vcache *tvp;
int i;
-#if defined(AFS_OSF_ENV)
+#if defined(AFS_OSF_ENV) || defined(AFS_LINUX22_ENV)
if (!afs_maxvcount) {
-#if defined(AFS_OSF30_ENV)
+#if defined(AFS_LINUX22_ENV)
+ 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 */
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
+#if !defined(AFS_OSF_ENV) && !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);
pin((char *)tvp, astatSize * sizeof(struct vcache)); /* XXX */
#endif
#endif
-#endif
#if defined(AFS_SGI_ENV)
for (i = 0; i < astatSize; i++) {
#endif /* AFS_SGI62_ENV */
}
#endif
-
QInit(&VLRU);
-
-
+ for(i = 0; i < VCSIZE; ++i)
+ QInit(&afs_vhashTV[i]);
}
/*
vms_delete(tvc->segid);
AFS_GLOCK();
tvc->segid = tvc->vmh = NULL;
- if (VREFCOUNT(tvc))
+ if (VREFCOUNT_GT(tvc,0))
osi_Panic("flushVcache: vm race");
}
if (tvc->credp) {
}
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)
+#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
afs_osi_Free(Initial_freeVCList, afs_cacheStats * sizeof(struct vcache));
#endif
-#endif
-#if !defined(AFS_OSF_ENV)
+#if !defined(AFS_OSF_ENV) && !defined(AFS_LINUX22_ENV)
freeVCList = Initial_freeVCList = 0;
#endif
RWLOCK_INIT(&afs_xvcache, "afs_xvcache");
LOCK_INIT(&afs_xvcb, "afs_xvcb");
QInit(&VLRU);
-
+ for(i = 0; i < VCSIZE; ++i)
+ QInit(&afs_vhashTV[i]);
}
git://git.openafs.org / openafs.git / blobdiff