2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * afs_init.c - initialize AFS client.
16 #include <afsconfig.h>
17 #include "afs/param.h"
21 #include "afs/sysincludes.h" /* Standard vendor system headers */
22 #include "afsincludes.h" /* Afs-based standard headers */
23 #include "afs/afs_stats.h" /* afs statistics */
24 #include "rx/rxstat.h"
25 #if defined(AFS_LINUX26_ENV) && defined(STRUCT_TASK_STRUCT_HAS_CRED)
26 #include <linux/cred.h>
29 #define FSINT_COMMON_XG
30 #include "afs/afscbint.h"
32 /* Exported variables */
33 struct osi_dev cacheDev; /*Cache device */
34 afs_int32 cacheInfoModTime; /*Last time cache info modified */
35 #if defined(AFS_DARWIN_ENV) || defined(AFS_FBSD_ENV)
36 struct mount *afs_cacheVfsp = 0;
37 #elif defined(AFS_LINUX20_ENV)
38 struct super_block *afs_cacheSBp = 0;
40 struct vfs *afs_cacheVfsp = 0;
42 afs_rwlock_t afs_puttofileLock; /* not used */
43 char *afs_sysname = 0; /* So that superuser may change the
44 * local value of @sys */
45 char *afs_sysnamelist[MAXNUMSYSNAMES]; /* For support of a list of sysname */
46 int afs_sysnamecount = 0;
47 int afs_sysnamegen = 0;
48 struct volume *Initialafs_freeVolList;
49 int afs_memvolumes = 0;
50 #if defined(AFS_XBSD_ENV)
51 static struct vnode *volumeVnode;
53 afs_rwlock_t afs_discon_lock;
54 extern afs_rwlock_t afs_disconDirtyLock;
55 #if defined(AFS_LINUX26_ENV) && defined(STRUCT_TASK_STRUCT_HAS_CRED)
56 const struct cred *cache_creds;
59 /* This is the kernel side of the dynamic vcache setting */
60 #ifdef AFS_MAXVCOUNT_ENV
61 int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */
65 * Initialization order is important. Must first call afs_CacheInit,
66 * then cache file and volume file initialization routines. Next, the
67 * individual cache entry initialization routines are called.
77 * astatSize : The number of stat cache (vnode) entries to
79 * afiles : The number of disk files to allocate to the cache
80 * ablocks : The max number of 1 Kbyte blocks that all of
81 * the files in the cache may occupy.
82 * aDentries : Number of dcache entries to allocate.
83 * aVolumes : Number of volume cache entries to allocate.
84 * achunk : Power of 2 to make the chunks.
85 * aflags : Flags passed in.
86 * inodes : max inodes to pin down in inode[]
87 * users : what should size of per-user access cache be?
90 * This routine should only be called at initialization time, since
91 * it reclaims no resources and doesn't sufficiently synchronize
92 * with other processes.
95 struct cm_initparams cm_initParams;
96 static int afs_cacheinit_flag = 0;
98 afs_CacheInit(afs_int32 astatSize, afs_int32 afiles, afs_int32 ablocks,
99 afs_int32 aDentries, afs_int32 aVolumes, afs_int32 achunk,
100 afs_int32 aflags, afs_int32 ninodes, afs_int32 nusers,
101 afs_int32 dynamic_vcaches)
106 AFS_STATCNT(afs_CacheInit);
108 * Jot down the epoch time, namely when this incarnation of the
109 * Cache Manager started.
111 afs_stats_cmperf.epoch = pag_epoch = osi_Time();
113 afs_stats_cmperf.sysName_ID = SYS_NAME_ID;
115 afs_stats_cmperf.sysName_ID = SYS_NAME_ID_UNDEFINED;
116 #endif /* SYS_NAME_ID */
118 #ifdef AFS_MAXVCOUNT_ENV
119 afsd_dynamic_vcaches = dynamic_vcaches;
120 afs_warn("%s dynamically allocated vcaches\n",
121 ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
124 afs_warn("Starting AFS cache scan...");
125 if (afs_cacheinit_flag)
127 afs_cacheinit_flag = 1;
128 cacheInfoModTime = 0;
130 LOCK_INIT(&afs_ftf, "afs_ftf");
131 AFS_RWLOCK_INIT(&afs_xaxs, "afs_xaxs");
132 AFS_RWLOCK_INIT(&afs_discon_lock, "afs_discon_lock");
133 AFS_RWLOCK_INIT(&afs_disconDirtyLock, "afs_disconDirtyLock");
134 QInit(&afs_disconDirty);
135 QInit(&afs_disconShadow);
139 * create volume list structure
143 else if (aVolumes > 32767)
146 tv = afs_osi_Alloc(aVolumes * sizeof(struct volume));
147 osi_Assert(tv != NULL);
148 for (i = 0; i < aVolumes - 1; i++)
149 tv[i].next = &tv[i + 1];
150 tv[aVolumes - 1].next = NULL;
151 afs_freeVolList = Initialafs_freeVolList = tv;
152 afs_memvolumes = aVolumes;
154 afs_cacheFiles = afiles;
155 afs_cacheStats = astatSize;
156 afs_vcacheInit(astatSize);
157 afs_dcacheInit(afiles, ablocks, aDentries, achunk, aflags);
158 #if defined(AFS_LINUX26_ENV) && defined(STRUCT_TASK_STRUCT_HAS_CRED)
160 * Save current credentials for later access to disk cache files.
161 * If selinux, apparmor or other security modules are enabled,
162 * they might deny access to cache files if the userspace process
163 * is restricted. Save the credentials used at cache initialisation
164 * for later use when opening cache files.
166 cache_creds = get_current_cred();
168 #ifdef AFS_64BIT_CLIENT
169 #ifdef AFS_VM_RDWR_ENV
170 afs_vmMappingEnd = AFS_CHUNKBASE(0x7fffffff);
171 #endif /* AFS_VM_RDWR_ENV */
172 #endif /* AFS_64BIT_CLIENT */
174 #if defined(AFS_AIX_ENV) && !defined(AFS_AIX51_ENV)
176 static void afs_procsize_init(void);
182 /* Save the initialization parameters for later pioctl queries. */
183 cm_initParams.cmi_version = CMI_VERSION;
184 cm_initParams.cmi_nChunkFiles = afiles;
185 cm_initParams.cmi_nStatCaches = astatSize;
186 cm_initParams.cmi_nDataCaches = aDentries;
187 cm_initParams.cmi_nVolumeCaches = aVolumes;
188 cm_initParams.cmi_firstChunkSize = AFS_FIRSTCSIZE;
189 cm_initParams.cmi_otherChunkSize = AFS_OTHERCSIZE;
190 cm_initParams.cmi_cacheSize = afs_cacheBlocks;
191 cm_initParams.cmi_setTime = afs_setTime;
192 cm_initParams.cmi_memCache = (aflags & AFSCALL_INIT_MEMCACHE) ? 1 : 0;
200 * afs_ComputeCacheParams
203 * Set some cache parameters.
210 afs_ComputeCacheParms(void)
213 afs_int32 afs_maxCacheDirty;
216 * Don't allow more than 2/3 of the files in the cache to be dirty.
218 afs_maxCacheDirty = (2 * afs_cacheFiles) / 3;
221 * Also, don't allow more than 2/3 of the total space get filled
222 * with dirty chunks. Compute the total number of chunks required
223 * to fill the cache, make sure we don't set out limit above 2/3 of
224 * that. If the cache size is greater than 1G, avoid overflow at
225 * the expense of precision on the chunk size.
227 if (afs_cacheBlocks & 0xffe00000) {
228 i = afs_cacheBlocks / (AFS_FIRSTCSIZE >> 10);
230 i = (afs_cacheBlocks << 10) / AFS_FIRSTCSIZE;
233 if (afs_maxCacheDirty > i)
234 afs_maxCacheDirty = i;
235 if (afs_maxCacheDirty < 1)
236 afs_maxCacheDirty = 1;
237 afs_stats_cmperf.cacheMaxDirtyChunks = afs_maxCacheDirty;
238 } /*afs_ComputeCacheParms */
242 * afs_LookupInodeByPath
244 * Look up inode given a file name.
245 * Optionally return the vnode too.
246 * If the vnode is not returned, we rele it.
249 afs_LookupInodeByPath(char *filename, afs_ufs_dcache_id_t *inode,
254 #if defined(AFS_LINUX22_ENV)
256 code = gop_lookupname(filename, AFS_UIOSYS, 0, &dp);
259 osi_get_fh(dp, inode);
262 struct vnode *filevp;
263 code = gop_lookupname(filename, AFS_UIOSYS, 0, &filevp);
266 #ifdef AFS_CACHE_VNODE_PATH
267 *inode = afs_strdup(filename);
269 *inode = afs_vnodeToInumber(filevp);
282 afs_InitCellInfo(char *afile)
284 afs_dcache_id_t inode;
287 code = afs_LookupInodeByPath(afile, &inode.ufs, NULL);
288 return afs_cellname_init(&inode, code);
295 * Set up the volume info storage file.
298 * afile : the file to be declared to be the volume info storage
299 * file for AFS. It must be already truncated to 0 length.
302 * This function is called only during initialization.
304 * WARNING: Data will be written to this file over time by AFS.
308 afs_InitVolumeInfo(char *afile)
311 struct osi_file *tfile;
313 AFS_STATCNT(afs_InitVolumeInfo);
314 #if defined(AFS_XBSD_ENV)
316 * On Open/Free/NetBSD, we can get into big trouble if we don't hold the volume file
317 * vnode. SetupVolume holds afs_xvolume lock exclusive.
318 * SetupVolume->GetVolSlot->UFSGetVolSlot->{GetVolCache or WriteVolCache}
319 * ->osi_UFSOpen->VFS_VGET()->ffs_vget->getnewvnode->vgone on some vnode.
320 * If it's AFS, then ->vclean->afs_nbsd_reclaim->FlushVCache->QueueVCB->
321 * GetVolume->FindVolume-> waits on afs_xvolume lock !
323 * In general, anything that's called with afs_xvolume locked must not
324 * end up calling getnewvnode(). The only cases I've found so far
325 * are things which try to get the volumeInode, and since we keep
328 code = afs_LookupInodeByPath(afile, &volumeInode.ufs, &volumeVnode);
330 code = afs_LookupInodeByPath(afile, &volumeInode.ufs, NULL);
334 tfile = afs_CFileOpen(&volumeInode);
335 afs_CFileTruncate(tfile, 0);
336 afs_CFileClose(tfile);
344 * Set up the given file as the AFS cache info file.
347 * afile : Name of the file assumed to be the cache info file
348 * for the Cache Manager; it will be used as such.
349 * Side Effects: This sets afs_fragsize, which is used in the cache usage
350 * calculations such as in afs_adjustsize()
353 * This function is called only during initialization. The given
354 * file should NOT be truncated to 0 lenght; its contents descrebe
355 * what data is really in the cache.
357 * WARNING: data will be written to this file over time by AFS.
359 * NOTE: Starting to use separate osi_InitCacheInfo() routines to clean up
364 afs_InitCacheInfo(char *afile)
367 struct osi_stat tstat;
368 struct osi_file *tfile;
369 struct afs_fheader theader;
370 #ifndef AFS_LINUX22_ENV
371 struct vnode *filevp;
375 AFS_STATCNT(afs_InitCacheInfo);
376 if (cacheDiskType != AFS_FCACHE_TYPE_UFS)
377 osi_Panic("afs_InitCacheInfo --- called for non-ufs cache!");
378 #ifdef AFS_LINUX22_ENV
379 code = osi_InitCacheInfo(afile);
383 code = gop_lookupname(afile, AFS_UIOSYS, 0, &filevp);
387 #if defined(AFS_SUN56_ENV)
389 #elif defined(AFS_HPUX102_ENV)
391 #elif defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV) || defined(AFS_HPUX100_ENV) || defined(AFS_NBSD40_ENV)
393 #elif defined(AFS_DARWIN80_ENV)
399 #if defined(AFS_SGI_ENV)
401 VFS_STATVFS(filevp->v_vfsp, &st, NULL, code);
404 if (!VFS_STATFS(filevp->v_vfsp, &st, NULL))
405 #endif /* AFS_SGI65_ENV */
406 #elif defined(AFS_SUN5_ENV) || defined(AFS_HPUX100_ENV)
407 if (!VFS_STATVFS(filevp->v_vfsp, &st))
408 #elif defined(AFS_AIX41_ENV)
409 if (!VFS_STATFS(filevp->v_vfsp, &st, &afs_osi_cred))
410 #elif defined(AFS_LINUX20_ENV)
415 VFS_STATFS(filevp->v_vfsp, &st);
418 #elif defined(AFS_DARWIN80_ENV)
419 afs_cacheVfsp = vnode_mount(filevp);
420 if (afs_cacheVfsp && ((st = *(vfs_statfs(afs_cacheVfsp))),1))
421 #elif defined(AFS_FBSD80_ENV)
422 if (!VFS_STATFS(filevp->v_mount, &st))
423 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
424 if (!VFS_STATFS(filevp->v_mount, &st, osi_curproc()))
426 if (!VFS_STATFS(filevp->v_vfsp, &st))
428 #if defined(AFS_SUN5_ENV) || defined(AFS_HPUX100_ENV)
429 if (strcmp("zfs", st.f_basetype) == 0) {
431 * Files in ZFS can take up to around the next
432 * recordsize boundary after being truncated. recordsize
433 * is reported in statvfs by f_bsize, so use that
436 afs_fsfragsize = st.f_bsize - 1;
438 afs_fsfragsize = st.f_frsize - 1;
441 afs_fsfragsize = st.f_bsize - 1;
444 #if defined(AFS_LINUX20_ENV)
445 cacheInode.ufs = filevp->i_ino;
446 afs_cacheSBp = filevp->i_sb;
447 #elif defined(AFS_XBSD_ENV)
448 cacheInode.ufs = VTOI(filevp)->i_number;
449 cacheDev.mp = filevp->v_mount;
450 cacheDev.held_vnode = filevp;
451 vref(filevp); /* Make sure mount point stays busy. XXX */
452 #if !defined(AFS_OBSD_ENV)
453 afs_cacheVfsp = filevp->v_vfsp;
456 #if defined(AFS_HAVE_VXFS) || defined(AFS_DARWIN_ENV)
457 afs_InitDualFSCacheOps(filevp);
459 #ifndef AFS_CACHE_VNODE_PATH
460 #ifndef AFS_DARWIN80_ENV
461 afs_cacheVfsp = filevp->v_vfsp;
463 cacheInode.ufs = afs_vnodeToInumber(filevp);
465 afs_LookupInodeByPath(afile, &cacheInode.ufs, NULL);
467 cacheDev.dev = afs_vnodeToDev(filevp);
468 #endif /* AFS_LINUX20_ENV */
470 #endif /* AFS_LINUX22_ENV */
471 if (afs_fsfragsize < AFS_MIN_FRAGSIZE) {
472 afs_fsfragsize = AFS_MIN_FRAGSIZE;
474 tfile = osi_UFSOpen(&cacheInode);
475 afs_osi_Stat(tfile, &tstat);
476 cacheInfoModTime = tstat.mtime;
477 code = afs_osi_Read(tfile, -1, &theader, sizeof(theader));
479 if (code == sizeof(theader)) {
480 /* read the header correctly */
481 if (theader.magic == AFS_FHMAGIC
482 && theader.firstCSize == AFS_FIRSTCSIZE
483 && theader.otherCSize == AFS_OTHERCSIZE
484 && theader.dataSize == sizeof(struct fcache)
485 && theader.version == AFS_CI_VERSION)
489 /* write out a good file label */
490 theader.magic = AFS_FHMAGIC;
491 theader.firstCSize = AFS_FIRSTCSIZE;
492 theader.otherCSize = AFS_OTHERCSIZE;
493 theader.dataSize = sizeof(struct fcache);
494 theader.version = AFS_CI_VERSION;
495 afs_osi_Write(tfile, 0, &theader, sizeof(theader));
497 * Truncate the rest of the file, since it may be arbitrarily
500 osi_UFSTruncate(tfile, sizeof(struct afs_fheader));
502 /* Leave the file open now, since reopening the file makes public pool
503 * vnode systems (like OSF/Alpha) much harder to handle, That's because
504 * they can do a vnode recycle operation any time we open a file, which
505 * we'd do on any afs_GetDSlot call, etc.
507 afs_cacheInodep = (struct osi_file *)tfile;
511 int afs_resourceinit_flag = 0;
513 afs_ResourceInit(int preallocs)
516 static struct rx_securityClass *secobj;
518 AFS_STATCNT(afs_ResourceInit);
519 AFS_RWLOCK_INIT(&afs_xuser, "afs_xuser");
520 AFS_RWLOCK_INIT(&afs_xvolume, "afs_xvolume");
521 AFS_RWLOCK_INIT(&afs_xserver, "afs_xserver");
522 AFS_RWLOCK_INIT(&afs_xsrvAddr, "afs_xsrvAddr");
523 AFS_RWLOCK_INIT(&afs_icl_lock, "afs_icl_lock");
524 AFS_RWLOCK_INIT(&afs_xinterface, "afs_xinterface");
525 LOCK_INIT(&afs_puttofileLock, "afs_puttofileLock");
526 #ifndef AFS_PRIVATE_OSI_ALLOCSPACES
527 LOCK_INIT(&osi_fsplock, "osi_fsplock");
528 LOCK_INIT(&osi_flplock, "osi_flplock");
530 AFS_RWLOCK_INIT(&afs_xconn, "afs_xconn");
533 afs_InitCBQueue(1); /* initialize callback queues */
535 if (afs_resourceinit_flag == 0) {
536 afs_resourceinit_flag = 1;
537 for (i = 0; i < NFENTRIES; i++)
539 for (i = 0; i < MAXNUMSYSNAMES; i++) {
540 afs_sysnamelist[i] = afs_osi_Alloc(MAXSYSNAME);
541 osi_Assert(afs_sysnamelist[i] != NULL);
543 afs_sysname = afs_sysnamelist[0];
544 strcpy(afs_sysname, SYS_NAME);
545 afs_sysnamecount = 1;
549 secobj = rxnull_NewServerSecurityObject();
551 rx_NewService(0, 1, "afs", &secobj, 1, RXAFSCB_ExecuteRequest);
553 rx_NewService(0, RX_STATS_SERVICE_ID, "rpcstats", &secobj, 1,
554 RXSTATS_ExecuteRequest);
556 afs_osi_Wakeup(&afs_server); /* wakeup anyone waiting for it */
559 } /*afs_ResourceInit */
561 #if defined(AFS_AIX_ENV) && !defined(AFS_AIX51_ENV)
564 * AIX dynamic sizeof(struct proc)
566 * AIX keeps its proc structures in an array. The size of struct proc
567 * varies from release to release of the OS. In order to maintain
568 * binary compatibility with releases later than what we build on, we
569 * need to determine the size of struct proc at run time.
571 * We need this in order to walk the proc[] array to do PAG garbage
574 * We also need this in order to support 'klog -setpag', since the
575 * kernel code needs to locate the proc structure for the parent process
576 * of the current process.
578 * To compute sizeof(struct proc), we need the addresses of two proc
579 * structures and their corresponding pids. Given the pids, we can use
580 * the PROCMASK() macro to compute their corresponding indices in the
581 * proc[] array. By dividing the distance between the pointers by the
582 * number of proc structures, we can compute the size of a single proc
585 * We know the base address of the proc table from v.vb_proc:
587 * <sys/sysconfig.h> declares sysconfig() and SYS_GETPARMS;
588 * (we don't use this, but I note it here for completeness)
590 * <sys/var.h> declares struct var and external variable v;
594 * v.ve_proc &proc[x] (current highwater mark for
595 * proc[] array usage)
597 * The first proc pointer is v.vb_proc, which is the proc structure for
598 * process 0. Process 0's pointer to its first child is the other proc
599 * pointer. If process 0 has no children, we simply give up and do not
600 * support features that require knowing the size of struct proc.
604 afs_procsize_init(void)
606 afs_proc_t *p0; /* pointer to process 0 */
607 afs_proc_t *pN; /* pointer to process 0's first child */
615 p0 = (afs_proc_t *)v.vb_proc;
617 afs_gcpags = AFS_GCPAGS_EPROC0;
632 afs_gcpags = AFS_GCPAGS_EPROCN;
636 if (pN->p_pid == p0->p_pid) {
637 afs_gcpags = AFS_GCPAGS_EEQPID;
641 pN_index = PROCMASK(pN->p_pid);
642 pN_offset = ((char *)pN - (char *)p0);
643 procsize = pN_offset / pN_index;
646 * check that the computation was exact
649 if (pN_index * procsize != pN_offset) {
650 afs_gcpags = AFS_GCPAGS_EINEXACT;
655 * check that the proc table size is a multiple of procsize.
658 if ((((char *)v.ve_proc - (char *)v.vb_proc) % procsize) != 0) {
659 afs_gcpags = AFS_GCPAGS_EPROCEND;
665 afs_gcpags_procsize = procsize;
673 * Clean up and shut down the AFS cache.
679 * Nothing interesting.
684 AFS_STATCNT(shutdown_cache);
685 afs_WriteThroughDSlots();
686 if (1/*afs_cold_shutdown*/) {
687 afs_cacheinit_flag = 0;
692 afs_cacheFiles = afs_cacheBlocks = 0;
695 #if defined(AFS_XBSD_ENV)
696 /* memcache never sets this, so don't panic on shutdown */
697 if (volumeVnode != NULL) {
698 vrele(volumeVnode); /* let it go, finally. */
701 if (cacheDev.held_vnode) {
702 vrele(cacheDev.held_vnode);
703 cacheDev.held_vnode = NULL;
706 #ifdef AFS_CACHE_VNODE_PATH
707 if (cacheDiskType != AFS_FCACHE_TYPE_MEM) {
708 afs_osi_FreeStr(cacheInode.ufs);
709 afs_osi_FreeStr(volumeInode.ufs);
712 afs_reset_inode(&cacheInode);
713 afs_reset_inode(&volumeInode);
714 cacheInfoModTime = 0;
716 afs_fsfragsize = 1023;
717 memset(&cacheDev, 0, sizeof(struct osi_dev));
720 #if defined(AFS_LINUX26_ENV) && defined(STRUCT_TASK_STRUCT_HAS_CRED)
721 put_cred(cache_creds);
723 } /*shutdown_cache */
727 shutdown_vnodeops(void)
729 #if !defined(AFS_SGI_ENV) && !defined(AFS_SUN5_ENV)
730 struct buf *afs_bread_freebp = 0;
734 AFS_STATCNT(shutdown_vnodeops);
735 if (afs_cold_shutdown) {
736 #ifndef AFS_SUN5_ENV /* XXX */
739 #ifndef AFS_LINUX20_ENV
742 #if !defined(AFS_SGI_ENV) && !defined(AFS_SUN5_ENV)
743 afs_bread_freebp = 0;
751 shutdown_server(void)
754 struct afs_conn *tc, *ntc;
755 struct afs_cbr *tcbrp, *tbrp;
758 for (i = 0; i < NSERVERS; i++) {
759 struct server *ts, *next;
764 for (sa = ts->addr; sa; sa = sa->next_sa) {
767 * Free all server's connection structs
773 /* we should destroy all connections
774 when shutting down Rx, not here */
776 rx_DestroyConnection(tc->id);
779 afs_osi_Free(tc, sizeof(struct afs_conn));
784 for (tcbrp = ts->cbrs; tcbrp; tcbrp = tbrp) {
786 * Free all server's callback structs
791 afs_osi_Free(ts, sizeof(struct server));
796 for (i = 0; i < NSERVERS; i++) {
797 struct srvAddr *sa, *next;
799 sa = afs_srvAddrs[i];
802 afs_osi_Free(sa, sizeof(struct srvAddr));
809 shutdown_volume(void)
814 for (i = 0; i < NVOLS; i++) {
815 for (tv = afs_volumes[i]; tv; tv = tv->next) {
817 afs_osi_Free(tv->name, strlen(tv->name) + 1);
830 AFS_STATCNT(shutdown_AFS);
831 if (afs_cold_shutdown) {
832 afs_resourceinit_flag = 0;
837 * Free FreeVolList allocations
839 afs_osi_Free(Initialafs_freeVolList,
840 afs_memvolumes * sizeof(struct volume));
841 afs_freeVolList = Initialafs_freeVolList = 0;
843 /* XXX HACK for MEM systems XXX
845 * For -memcache cache managers when we run out of free in memory volumes
846 * we simply malloc more; we won't be able to free those additional volumes.
850 * Free Users table allocation
853 struct unixuser *tu, *ntu;
854 for (i = 0; i < NUSERS; i++) {
855 for (tu = afs_users[i]; tu; tu = ntu) {
858 afs_FreeTokens(&tu->tokens);
860 EXP_RELE(tu->exporter);
861 afs_osi_Free(tu, sizeof(struct unixuser));
867 for (i = 0; i < NFENTRIES; i++)
869 /* Reinitialize local globals to defaults */
870 for (i = 0; i < MAXNUMSYSNAMES; i++)
871 afs_osi_Free(afs_sysnamelist[i], MAXSYSNAME);
873 afs_sysnamecount = 0;
875 afs_setTimeHost = NULL;
877 afs_waitForever = afs_waitForeverCount = 0;
879 afs_server = (struct rx_service *)0;
880 AFS_RWLOCK_INIT(&afs_xconn, "afs_xconn");
881 memset(&afs_rootFid, 0, sizeof(struct VenusFid));
882 AFS_RWLOCK_INIT(&afs_xuser, "afs_xuser");
883 AFS_RWLOCK_INIT(&afs_xvolume, "afs_xvolume");
884 AFS_RWLOCK_INIT(&afs_xserver, "afs_xserver");
885 LOCK_INIT(&afs_puttofileLock, "afs_puttofileLock");