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
9 * Portions Copyright (c) 2006-2008 Sine Nomine Associates
15 Institution: The Information Technology Center, Carnegie-Mellon University
22 #include <afs/afssyscalls.h>
25 #define VolumeWriteable(vp) (V_type(vp)==readwriteVolume)
26 #define VolumeWriteable2(vol) (vol.type == readwriteVolume)
27 typedef bit32 FileOffset
; /* Offset in this file */
28 #define Date afs_uint32
29 #include "daemon_com.h"
33 /** turn this on if you suspect a volume package locking bug */
34 #define VOL_LOCK_DEBUG 1
38 #define VOL_LOCK_ASSERT_HELD \
39 opr_Assert(vol_glock_holder == pthread_self())
40 #define VOL_LOCK_ASSERT_UNHELD \
41 opr_Assert(vol_glock_holder == 0)
42 #define _VOL_LOCK_SET_HELD \
43 vol_glock_holder = pthread_self()
44 #define _VOL_LOCK_SET_UNHELD \
46 #define VOL_LOCK_DBG_CV_WAIT_END \
48 VOL_LOCK_ASSERT_UNHELD; \
51 #define VOL_LOCK_DBG_CV_WAIT_BEGIN \
53 VOL_LOCK_ASSERT_HELD; \
54 _VOL_LOCK_SET_UNHELD; \
57 #define VOL_LOCK_ASSERT_HELD
58 #define VOL_LOCK_ASSERT_UNHELD
59 #define VOL_LOCK_DBG_CV_WAIT_BEGIN
60 #define VOL_LOCK_DBG_CV_WAIT_END
64 #ifdef AFS_PTHREAD_ENV
66 extern pthread_mutex_t vol_glock_mutex
;
67 extern pthread_mutex_t vol_trans_mutex
;
68 extern pthread_cond_t vol_put_volume_cond
;
69 extern pthread_cond_t vol_sleep_cond
;
70 extern pthread_cond_t vol_vinit_cond
;
71 extern ih_init_params vol_io_params
;
72 extern int vol_attach_threads
;
74 extern pthread_t vol_glock_holder
;
77 opr_mutex_enter(&vol_glock_mutex); \
78 VOL_LOCK_ASSERT_UNHELD; \
83 VOL_LOCK_ASSERT_HELD; \
84 _VOL_LOCK_SET_UNHELD; \
85 opr_mutex_exit(&vol_glock_mutex); \
87 #define VOL_CV_WAIT(cv) \
89 VOL_LOCK_DBG_CV_WAIT_BEGIN; \
90 opr_cv_wait((cv), &vol_glock_mutex); \
91 VOL_LOCK_DBG_CV_WAIT_END; \
93 #else /* !VOL_LOCK_DEBUG */
94 #define VOL_LOCK opr_mutex_enter(&vol_glock_mutex)
95 #define VOL_UNLOCK opr_mutex_exit(&vol_glock_mutex)
96 #define VOL_CV_WAIT(cv) opr_cv_wait((cv), &vol_glock_mutex)
97 #endif /* !VOL_LOCK_DEBUG */
99 #define VSALVSYNC_LOCK opr_mutex_enter(&vol_salvsync_mutex)
100 #define VSALVSYNC_UNLOCK opr_mutex_exit(&vol_salvsync_mutex)
101 #define VTRANS_LOCK opr_mutex_enter(&vol_trans_mutex)
102 #define VTRANS_UNLOCK opr_mutex_exit(&vol_trans_mutex)
103 #else /* AFS_PTHREAD_ENV */
106 #define VSALVSYNC_LOCK
107 #define VSALVSYNC_UNLOCK
109 #define VTRANS_UNLOCK
110 #endif /* AFS_PTHREAD_ENV */
113 * volume package program type enumeration.
116 fileServer
= 1, /**< the fileserver process */
117 volumeUtility
= 2, /**< any miscellaneous volume utility */
118 salvager
= 3, /**< standalone whole-partition salvager */
119 salvageServer
= 4, /**< dafs online salvager */
120 debugUtility
= 5, /**< fssync-debug or similar utility */
121 volumeServer
= 6, /**< the volserver process */
122 volumeSalvager
= 7 /**< the standalone single-volume salvager */
124 extern ProgramType programType
; /* The type of program using the package */
126 /* Some initialization parameters for the volume package */
127 /* Add new initialization parameters here */
128 extern int (*V_BreakVolumeCallbacks
) (VolumeId
);
129 extern int (*vol_PollProc
) (void);
131 #define DOPOLL ((vol_PollProc)? (*vol_PollProc)() : 0)
133 #ifdef AFS_DEMAND_ATTACH_FS
135 * variable error return code based upon programType and DAFS presence
137 #define DAFS_VSALVAGE ((programType == fileServer) ? VSALVAGING : VSALVAGE)
139 #define DAFS_VSALVAGE (VSALVAGE)
142 struct versionStamp
{ /* Version stamp for critical volume files */
143 bit32 magic
; /* Magic number */
144 bit32 version
; /* Version number of this file, or software
145 * that created this file */
148 #ifdef AFS_DEMAND_ATTACH_FS
150 * demand attach volume state enumeration.
152 * @note values must be contiguous in order for VIsValidState() to work correctly
155 VOL_STATE_UNATTACHED
= 0, /**< volume is unattached */
156 VOL_STATE_PREATTACHED
= 1, /**< volume has been pre-attached */
157 VOL_STATE_ATTACHING
= 2, /**< volume is transitioning to fully attached */
158 VOL_STATE_ATTACHED
= 3, /**< volume has been fully attached */
159 VOL_STATE_UPDATING
= 4, /**< volume is updating on-disk structures */
160 VOL_STATE_GET_BITMAP
= 5, /**< volume is getting bitmap entries */
161 VOL_STATE_HDR_LOADING
= 6, /**< volume is loading disk header */
162 VOL_STATE_HDR_ATTACHING
= 7, /**< volume is getting a header from the LRU */
163 VOL_STATE_SHUTTING_DOWN
= 8, /**< volume is shutting down */
164 VOL_STATE_GOING_OFFLINE
= 9, /**< volume is going offline */
165 VOL_STATE_OFFLINING
= 10, /**< volume is transitioning to offline */
166 VOL_STATE_DETACHING
= 11, /**< volume is transitioning to detached */
167 VOL_STATE_SALVSYNC_REQ
= 12, /**< volume is blocked on a salvsync request */
168 VOL_STATE_SALVAGING
= 13, /**< volume is being salvaged */
169 VOL_STATE_ERROR
= 14, /**< volume is in an error state */
170 VOL_STATE_VNODE_ALLOC
= 15, /**< volume is busy allocating a new vnode */
171 VOL_STATE_VNODE_GET
= 16, /**< volume is busy getting vnode disk data */
172 VOL_STATE_VNODE_CLOSE
= 17, /**< volume is busy closing vnodes */
173 VOL_STATE_VNODE_RELEASE
= 18, /**< volume is busy releasing vnodes */
174 VOL_STATE_VLRU_ADD
= 19, /**< volume is busy being added to a VLRU queue */
175 VOL_STATE_DELETED
= 20, /**< volume has been deleted by the volserver */
176 VOL_STATE_SALVAGE_REQ
= 21, /**< volume has been requested to be salvaged,
177 * but is waiting for other users to go away
178 * so it can be offlined */
179 VOL_STATE_SCANNING_RXCALLS
= 22, /**< volume is scanning vp->rx_call_list
180 * to interrupt RX calls */
181 /* please add new states directly above this line */
182 VOL_STATE_FREED
= 23, /**< debugging aid */
183 VOL_STATE_COUNT
= 24 /**< total number of valid states */
187 * V_attachFlags bits.
190 VOL_HDR_ATTACHED
= 0x1, /**< volume header is attached to Volume struct */
191 VOL_HDR_LOADED
= 0x2, /**< volume header contents are valid */
192 VOL_HDR_IN_LRU
= 0x4, /**< volume header is in LRU */
193 VOL_IN_HASH
= 0x8, /**< volume is in hash table */
194 VOL_ON_VBYP_LIST
= 0x10, /**< volume is on VByP list */
195 VOL_IS_BUSY
= 0x20, /**< volume is not to be free()d */
196 VOL_ON_VLRU
= 0x40, /**< volume is on the VLRU */
197 VOL_HDR_DONTSALV
= 0x80, /**< volume header DONTSALVAGE flag is set */
198 VOL_LOCKED
= 0x100 /**< volume is disk-locked (@see VLockVolumeNB) */
201 /* VPrintExtendedCacheStats flags */
202 #define VOL_STATS_PER_CHAIN 0x1 /**< compute simple per-chain stats */
203 #define VOL_STATS_PER_CHAIN2 0x2 /**< compute per-chain stats that require scanning
204 * every element of the chain */
206 /* VLRU_SetOptions options */
207 #define VLRU_SET_THRESH 1
208 #define VLRU_SET_INTERVAL 2
209 #define VLRU_SET_MAX 3
210 #define VLRU_SET_ENABLED 4
216 VLRU_QUEUE_NEW
= 0, /**< LRU queue for new volumes */
217 VLRU_QUEUE_MID
= 1, /**< survivor generation */
218 VLRU_QUEUE_OLD
= 2, /**< old generation */
219 VLRU_QUEUE_CANDIDATE
= 3, /**< soft detach candidate pool */
220 VLRU_QUEUE_HELD
= 4, /* volumes which are not allowed
221 * to be soft detached */
222 VLRU_QUEUE_INVALID
= 5 /**< invalid queue id */
225 /* default scanner timing parameters */
226 #define VLRU_DEFAULT_OFFLINE_THRESH (60*60*2) /* 2 hours */
227 #define VLRU_DEFAULT_OFFLINE_INTERVAL (60*2) /* 2 minutes */
228 #define VLRU_DEFAULT_OFFLINE_MAX 8 /* 8 volumes */
232 * DAFS thread-specific options structure
234 typedef struct VThreadOptions
{
235 int disallow_salvsync
; /**< whether or not salvsync calls are allowed
236 * on this thread (deadlock prevention). */
238 extern pthread_key_t VThread_key
;
239 extern VThreadOptions_t VThread_defaults
;
241 #endif /* AFS_DEMAND_ATTACH_FS */
243 typedef struct VolumePackageOptions
{
244 afs_uint32 nLargeVnodes
; /**< size of large vnode cache */
245 afs_uint32 nSmallVnodes
; /**< size of small vnode cache */
246 afs_uint32 volcache
; /**< size of volume header cache */
248 afs_int32 canScheduleSalvage
; /**< can we schedule salvages? (DAFS) */
249 /* (if 'no', we will just error out if we
251 afs_int32 canUseFSSYNC
; /**< can we use the FSSYNC channel? */
252 afs_int32 canUseSALVSYNC
; /**< can we use the SALVSYNC channel? (DAFS) */
253 afs_int32 unsafe_attach
; /**< can we bypass checking the inUse vol
254 * header on attach? */
255 void (*interrupt_rxcall
) (struct rx_call
*call
, afs_int32 error
);
256 /**< callback to interrupt RX calls accessing
257 * a going-offline volume */
258 afs_int32 offline_timeout
; /**< how long (in seconds) to wait before
259 * interrupting RX calls accessing a
260 * going-offline volume. -1 disables,
261 * 0 means immediately. */
262 afs_int32 offline_shutdown_timeout
;
263 /**< how long (in seconds) to wait before
264 * interrupting RX calls accessing a
265 * going-offline volume during shutdown.
266 * -1 disables, 0 means immediately.
267 * Note that the timeout time is calculated
268 * once, when we encounter the first going-
269 * offline volume during shutdown. So if we
270 * encounter multiple going-offline volumes
271 * during shutdown, we will still only wait
272 * for this amount of time in total, not e.g.
273 * for each going-offline volume encountered. */
274 afs_int32 usage_threshold
; /*< number of accesses before writing volume header */
275 afs_int32 usage_rate_limit
; /*< minimum number of seconds before writing volume
276 * header, after usage_threshold is exceeded */
277 } VolumePackageOptions
;
279 /* Magic numbers and version stamps for each type of file */
280 #define VOLUMEHEADERMAGIC ((bit32)0x88a1bb3c)
281 #define VOLUMEINFOMAGIC ((bit32)0x78a1b2c5)
282 #define SMALLINDEXMAGIC 0x99776655
283 #define LARGEINDEXMAGIC 0x88664433
284 #define MOUNTMAGIC 0x9a8b7c6d
285 #define ACLMAGIC 0x88877712
286 #define LINKTABLEMAGIC 0x99877712
288 #define VOLUMEHEADERVERSION 1
289 #define VOLUMEINFOVERSION 1
290 #define SMALLINDEXVERSION 1
291 #define LARGEINDEXVERSION 1
292 #define MOUNTVERSION 1
294 #define LINKTABLEVERSION 1
298 * Define various indices and counts used in keeping volume-level statistics.
300 #define VOL_STATS_NUM_RWINFO_FIELDS 4
302 #define VOL_STATS_SAME_NET 0 /*Within same site (total) */
303 #define VOL_STATS_SAME_NET_AUTH 1 /*Within same site (authenticated);
304 * (must be 1 more than above) */
305 #define VOL_STATS_DIFF_NET 2 /*From external site (total) */
306 #define VOL_STATS_DIFF_NET_AUTH 3 /*From external site (authenticated)
307 * (must be 1 more than above) */
309 #define VOL_STATS_NUM_TIME_RANGES 6
311 #define VOL_STATS_TIME_CAP_0 60 /*60 seconds */
312 #define VOL_STATS_TIME_CAP_1 600 /*10 minutes, in seconds */
313 #define VOL_STATS_TIME_CAP_2 3600 /*1 hour, in seconds */
314 #define VOL_STATS_TIME_CAP_3 86400 /*1 day, in seconds */
315 #define VOL_STATS_TIME_CAP_4 604800 /*1 week, in seconds */
317 #define VOL_STATS_NUM_TIME_FIELDS 6
319 #define VOL_STATS_TIME_IDX_0 0 /*0 secs to 60 secs */
320 #define VOL_STATS_TIME_IDX_1 1 /*1 min to 10 mins */
321 #define VOL_STATS_TIME_IDX_2 2 /*10 mins to 60 mins */
322 #define VOL_STATS_TIME_IDX_3 3 /*1 hr to 24 hrs */
323 #define VOL_STATS_TIME_IDX_4 4 /*1 day to 7 days */
324 #define VOL_STATS_TIME_IDX_5 5 /*Greater than 1 week */
326 /* Volume header. This is the contents of the named file representing
327 * the volume. Read-only by the file server!
329 typedef struct VolumeHeader
{
330 struct versionStamp stamp
; /* Must be first field */
331 VolumeId id
; /* Volume number */
332 VolumeId parent
; /* Read-write volume number (or this volume
333 * number if this is a read-write volume) */
335 Inode smallVnodeIndex
;
336 Inode largeVnodeIndex
;
338 Inode volumeMountTable
;
343 typedef struct VolumeDiskHeader
{
344 struct versionStamp stamp
; /* Must be first field */
345 VolumeId id
; /* Volume number */
346 VolumeId parent
; /* Read-write volume number (or this volume
347 * number if this is a read-write volume) */
348 afs_int32 volumeInfo_lo
;
349 afs_int32 smallVnodeIndex_lo
;
350 afs_int32 largeVnodeIndex_lo
;
351 afs_int32 volumeAcl_lo
;
352 afs_int32 volumeMountTable_lo
;
353 afs_int32 volumeInfo_hi
;
354 afs_int32 smallVnodeIndex_hi
;
355 afs_int32 largeVnodeIndex_hi
;
356 afs_int32 volumeAcl_hi
;
357 afs_int32 volumeMountTable_hi
;
358 afs_int32 linkTable_lo
;
359 afs_int32 linkTable_hi
;
360 /* If you add fields, add them before here and reduce the size of array */
362 } VolumeDiskHeader_t
;
364 /* A vnode index file header */
365 struct IndexFileHeader
{
366 struct versionStamp stamp
;
370 /******************************************************************************/
371 /* Volume Data which is stored on disk and can also be maintained in memory. */
372 /******************************************************************************/
373 typedef struct VolumeDiskData
{
374 struct versionStamp stamp
; /* Must be first field */
375 VolumeId id
; /* Volume id--unique over all systems */
376 #define VNAMESIZE 32 /* including 0 byte */
377 char name
[VNAMESIZE
]; /* Unofficial name for the volume */
378 byte inUse
; /* Volume is being used (perhaps it is online),
379 * or the system crashed while it was used */
380 byte inService
; /* Volume in service, not necessarily on line
381 * This bit is set by an operator/system
382 * programmer. Manually taking a volume offline
383 * always clears the inService bit. Taking
384 * it out of service also takes it offline */
385 byte blessed
; /* Volume is administratively blessed with
386 * the ability to go on line. Set by a system
387 * administrator. Clearing this bit will
388 * take the volume offline */
389 byte needsSalvaged
; /* Volume needs salvaged--an unrecoverable
390 * error occured to the volume. Note: a volume
391 * may still require salvage even if this
392 * flag isn't set--e.g. if a system crash
393 * occurred while the volume was on line. */
394 bit32 uniquifier
; /* Next vnode uniquifier for this volume */
396 VolumeId parentId
; /* Id of parent, if type==readonly */
397 VolumeId cloneId
; /* Latest read-only clone, if type==readwrite,
398 * 0 if the volume has never been cloned. Note: the
399 * indicated volume does not necessarily exist (it
400 * may have been deleted since cloning). */
401 VolumeId backupId
; /* Latest backup copy of this read write volume */
402 VolumeId restoredFromId
; /* The id in the dump this volume was restored from--used simply
403 * to make sure that an incremental dump is not restored on top
404 * of something inappropriate: Note: this field itself is NEVER
406 byte needsCallback
; /* Set by the salvager if anything was changed
407 * about the volume. Note: this is not set by
408 * clone/makebackups when setting the copy-on-write
409 * flag in directories; this flag is not seen by
411 #define DESTROY_ME 0xD3
412 byte destroyMe
; /* If this is set to DESTROY_ME, then the salvager should destroy
413 * this volume; it is bogus (left over from an aborted volume move,
414 * for example). Note: if this flag is on, then inService should
415 * be OFF--only the salvager checks this flag */
416 #ifdef ALPHA_DUX40_ENV
417 #define DONT_SALVAGE 0xE6
418 #else /* ALPHA_DUX40_ENV */
419 #define DONT_SALVAGE 0xE5
420 #endif /* ALPHA_DUX40_ENV */
421 byte dontSalvage
; /* If this is on, then don't bother salvaging this volume */
427 /* Administrative stuff */
428 int maxquota
; /* Quota maximum, 1K blocks */
429 int minquota
; /* Quota minimum, 1K blocks */
430 int maxfiles
; /* Maximum number of files (i.e. inodes) */
431 bit32 accountNumber
; /* Uninterpreted account number */
432 bit32 owner
; /* The person administratively responsible
434 int reserved2
[8]; /* Other administrative constraints */
436 /* Resource usage & statistics */
437 int filecount
; /* Actual number of files */
438 int diskused
; /* Actual disk space used, 1K blocks */
439 int dayUse
; /* Metric for today's usage of this volume so far */
440 int weekUse
[7]; /* Usage of the volume for the last week.
441 * weekUse[0] is for most recent complete 24 hour period
442 * of measurement; week[6] is 7 days ago */
443 Date dayUseDate
; /* Date the dayUse statistics refer to; the week use stats
444 * are the preceding 7 days */
445 unsigned int volUpdateCounter
; /*incremented at every update of volume*/
446 int reserved3
[10]; /* Other stats here */
448 /* Server supplied dates */
449 Date creationDate
; /* Creation date for a read/write
450 * volume; cloning date for original copy of
451 * a readonly volume (replicated volumes have
452 * the same creation date) */
453 Date accessDate
; /* Last access time by a user, large granularity */
454 Date updateDate
; /* Last modification by user or salvager */
455 Date expirationDate
; /* 0 if it never expires */
456 Date backupDate
; /* last time a backup clone was taken */
458 /* Time that this copy of this volume was made. NEVER backed up. This field is only
459 * set when the copy is created */
462 bit32 stat_initialized
; /*Are the stat fields below set up? */
467 char offlineMessage
[VMSGSIZE
]; /* Why the volume is offline */
468 #define VOL_STATS_BYTES 128
470 * Keep per-volume aggregate statistics on type and distance of access,
471 * along with authorship info.
473 bit32 stat_reads
[VOL_STATS_NUM_RWINFO_FIELDS
];
474 bit32 stat_writes
[VOL_STATS_NUM_RWINFO_FIELDS
];
475 bit32 stat_fileSameAuthor
[VOL_STATS_NUM_TIME_FIELDS
];
476 bit32 stat_fileDiffAuthor
[VOL_STATS_NUM_TIME_FIELDS
];
477 bit32 stat_dirSameAuthor
[VOL_STATS_NUM_TIME_FIELDS
];
478 bit32 stat_dirDiffAuthor
[VOL_STATS_NUM_TIME_FIELDS
];
483 /**************************************/
484 /* Memory resident volume information */
485 /**************************************/
488 * global volume package stats.
490 typedef struct VolPkgStats
{
491 #ifdef AFS_DEMAND_ATTACH_FS
494 * extended volume package statistics
498 afs_uint32 state_levels
[VOL_STATE_COUNT
]; /**< volume state transition counters */
501 afs_uint64 hash_looks
; /**< number of hash chain element traversals */
502 afs_uint64 hash_reorders
; /**< number of hash chain reorders */
503 afs_uint64 salvages
; /**< online salvages since fileserver start */
504 afs_uint64 vol_ops
; /**< volume operations since fileserver start */
505 #endif /* AFS_DEMAND_ATTACH_FS */
507 afs_uint64 hdr_loads
; /**< header loads from disk */
508 afs_uint64 hdr_gets
; /**< header pulls out of LRU */
509 afs_uint64 attaches
; /**< volume attaches since fileserver start */
510 afs_uint64 soft_detaches
; /**< soft detach ops since fileserver start */
512 /* configuration parameters */
513 afs_uint32 hdr_cache_size
; /**< size of volume header cache */
515 extern VolPkgStats VStats
;
518 * volume header cache supporting structures
520 struct volume_hdr_LRU_stats
{
526 struct volume_hdr_LRU_t
{
528 struct volume_hdr_LRU_stats stats
;
530 extern struct volume_hdr_LRU_t volume_hdr_LRU
;
533 * volume hash chain supporting structures
535 typedef struct VolumeHashChainHead
{
536 struct rx_queue queue
;
538 /* someday we could put a per-chain lock here... */
539 #ifdef AFS_DEMAND_ATTACH_FS
543 /* per-chain statistics */
548 pthread_cond_t chain_busy_cv
;
549 #endif /* AFS_DEMAND_ATTACH_FS */
550 } VolumeHashChainHead
;
552 typedef struct VolumeHashTable
{
555 VolumeHashChainHead
* Table
;
557 extern VolumeHashTable_t VolumeHashTable
;
559 struct VolumeHashChainStats
{
560 afs_int32 table_size
;
562 #ifdef AFS_DEMAND_ATTACH_FS
563 afs_int32 chain_cacheCheck
;
564 afs_int32 chain_busy
;
565 afs_uint64 chain_looks
;
566 afs_uint64 chain_gets
;
567 afs_uint64 chain_reorders
;
572 #ifdef AFS_DEMAND_ATTACH_FS
574 * DAFS extended per-volume statistics.
576 * @note this data lives across the entire
577 * lifetime of the fileserver process
579 typedef struct VolumeStats
{
581 afs_uint64 hash_lookups
; /**< hash table lookups */
582 afs_uint64 hash_short_circuits
; /**< short circuited hash lookups (due to cacheCheck) */
583 afs_uint64 hdr_loads
; /**< header loads from disk */
584 afs_uint64 hdr_gets
; /**< header pulls out of LRU */
585 afs_uint16 attaches
; /**< attaches of this volume since fileserver start */
586 afs_uint16 soft_detaches
; /**< soft detaches of this volume */
587 afs_uint16 salvages
; /**< online salvages since fileserver start */
588 afs_uint16 vol_ops
; /**< volume operations since fileserver start */
591 afs_uint32 last_attach
; /**< unix timestamp of last VAttach */
592 afs_uint32 last_get
; /**< unix timestamp of last VGet/VHold */
593 afs_uint32 last_promote
; /**< unix timestamp of last VLRU promote/demote */
594 afs_uint32 last_hdr_get
; /**< unix timestamp of last GetVolumeHeader() */
595 afs_uint32 last_hdr_load
; /**< unix timestamp of last LoadVolumeHeader() */
596 afs_uint32 last_salvage
; /**< unix timestamp of last initiation of an online salvage */
597 afs_uint32 last_salvage_req
; /**< unix timestamp of last SALVSYNC request */
598 afs_uint32 last_vol_op
; /**< unix timestamp of last volume operation */
602 #define SALVAGE_PRIO_UPDATE_INTERVAL 3 /**< number of seconds between prio updates */
603 #define SALVAGE_COUNT_MAX 16 /**< number of online salvages we
604 * allow before moving the volume
605 * into a permanent error state
607 * once this threshold is reached,
608 * the operator will have to manually
609 * issue a 'bos salvage' to bring
610 * the volume back online
614 * DAFS online salvager state.
616 typedef struct VolumeOnlineSalvage
{
617 afs_uint32 prio
; /**< number of VGetVolume's since salvage requested */
618 int reason
; /**< reason for requesting online salvage */
619 byte requested
; /**< flag specifying that salvage should be scheduled */
620 byte scheduled
; /**< flag specifying whether online salvage scheduled */
621 byte scheduling
; /**< if nonzero, this volume has entered
622 * VCheckSalvage(), so if we recurse into
623 * VCheckSalvage() with this set, exit immediately
624 * to avoid recursing forever */
625 byte reserved
[1]; /**< padding */
626 } VolumeOnlineSalvage
;
629 * DAFS Volume LRU state.
631 typedef struct VolumeVLRUState
{
632 struct rx_queue lru
; /**< VLRU queue for this generation */
633 VLRUQueueName idx
; /**< VLRU generation index */
635 #endif /* AFS_DEMAND_ATTACH_FS */
638 * node for a volume's rx_call_list.
642 struct rx_call
*call
;
645 typedef struct Volume
{
646 struct rx_queue q
; /* Volume hash chain pointers */
647 VolumeId hashid
; /* Volume number -- for hash table lookup */
648 struct volHeader
*header
; /* Cached disk data */
649 Device device
; /* Unix device for the volume */
650 struct DiskPartition64
651 *partition
; /* Information about the Unix partition */
653 IHandle_t
*handle
; /* Unix inode holding this index */
654 byte
*bitmap
; /* Index bitmap */
655 afs_uint32 bitmapSize
; /* length of bitmap, in bytes */
656 afs_uint32 bitmapOffset
; /* Which byte address of the first long to
657 * start search from in bitmap */
658 } vnodeIndex
[nVNODECLASSES
];
659 IHandle_t
*linkHandle
;
660 Unique nextVnodeUnique
; /* Derived originally from volume uniquifier.
661 * This is the actual next version number to
662 * assign; the uniquifier is bumped by 200 and
663 * and written to disk every 200 file creates
664 * If the volume is shutdown gracefully, the
665 * uniquifier should be rewritten with the
666 * value nextVnodeVersion */
667 IHandle_t
*diskDataHandle
; /* Unix inode holding general volume info */
668 byte shuttingDown
; /* This volume is going to be detached */
669 byte goingOffline
; /* This volume is going offline */
670 bit32 cacheCheck
; /* Online sequence number to be used to invalidate vnode cache entries
671 * that stayed around while a volume was offline */
672 short nUsers
; /* Number of users of this volume header */
673 #define VOL_PUTBACK 1
674 #define VOL_PUTBACK_DELETE 2
675 byte needsPutBack
; /* For a volume utility, this flag is set to VOL_PUTBACK if we
676 * need to give the volume back when we detach it. The server has
677 * certain modes where it doesn't detach the volume, and
678 * if we give it back spuriously, the server aborts. If set to
679 * VOL_PUTBACK_DELETE, it indicates that we need to tell the
680 * fileserver that the volume is gone entirely, instead of just
681 * giving the volume back to the fileserver. This field
682 * is meaningless on the file server */
683 byte specialStatus
; /* An error code to return on VGetVolume: the
684 * volume is unavailable for the reason quoted,
685 * currently VBUSY or VMOVED */
686 afs_uint32 checkoutMode
; /* for volume utilities, mode number for current checkout */
687 afs_uint32 updateTime
; /* Time that this volume was put on the updated
688 * volume list--the list of volumes that will be
689 * salvaged should the file server crash */
690 struct rx_queue vnode_list
; /**< linked list of cached vnodes for this volume */
691 struct rx_queue rx_call_list
; /**< linked list of split RX calls using this
692 * volume (fileserver only) */
693 #ifdef AFS_DEMAND_ATTACH_FS
694 VolState attach_state
; /* what stage of attachment has been completed */
695 afs_uint32 attach_flags
; /* flags related to attachment state */
696 pthread_cond_t attach_cv
; /* state change condition variable */
697 short nWaiters
; /* volume package internal ref count */
698 int chainCacheCheck
; /* Volume hash chain cache check */
699 struct rx_queue vol_list
; /* per-partition volume list (VByPList) */
701 VolumeOnlineSalvage salvage
; /* online salvager state */
702 VolumeStats stats
; /* per-volume statistics */
703 VolumeVLRUState vlru
; /* state specific to the VLRU */
704 FSSYNC_VolOp_info
* pending_vol_op
; /* fssync command info for any pending vol ops */
705 #endif /* AFS_DEMAND_ATTACH_FS */
706 int usage_bumps_outstanding
; /**< to rate limit the usage update i/o by accesses */
707 int usage_bumps_next_write
; /**< to rate limit the usage update i/o by time */
712 VolumeDiskData diskstuff
; /* General volume info read from disk */
713 Volume
*back
; /* back pointer to current volume structure */
716 /* These macros are used to export fields within the volume header. This was added
717 to facilitate changing the actual representation */
719 #define V_device(vp) ((vp)->device)
720 #define V_partition(vp) ((vp)->partition)
721 #define V_diskDataHandle(vp) ((vp)->diskDataHandle)
722 #define V_vnodeIndex(vp) ((vp)->vnodeIndex)
723 #define V_nextVnodeUnique(vp) ((vp)->nextVnodeUnique)
724 #define V_linkHandle(vp) ((vp)->linkHandle)
725 #define V_checkoutMode(vp) ((vp)->checkoutMode)
726 #ifdef AFS_DEMAND_ATTACH_FS
727 #define V_attachState(vp) ((vp)->attach_state)
728 #define V_attachFlags(vp) ((vp)->attach_flags)
729 #define V_attachCV(vp) ((vp)->attach_cv)
730 #endif /* AFS_DEMAND_ATTACH_FS */
732 /* N.B. V_id must be this, rather than vp->id, or some programs will break, probably */
733 #define V_stamp(vp) ((vp)->header->diskstuff.stamp)
734 #define V_id(vp) ((vp)->header->diskstuff.id)
735 #define V_name(vp) ((vp)->header->diskstuff.name)
736 #define V_inUse(vp) ((vp)->header->diskstuff.inUse)
737 #define V_inService(vp) ((vp)->header->diskstuff.inService)
738 #define V_blessed(vp) ((vp)->header->diskstuff.blessed)
739 #define V_needsSalvaged(vp) ((vp)->header->diskstuff.needsSalvaged)
740 #define V_uniquifier(vp) ((vp)->header->diskstuff.uniquifier)
741 #define V_type(vp) ((vp)->header->diskstuff.type)
742 #define V_parentId(vp) ((vp)->header->diskstuff.parentId)
743 #define V_cloneId(vp) ((vp)->header->diskstuff.cloneId)
744 #define V_backupId(vp) ((vp)->header->diskstuff.backupId)
745 #define V_restoredFromId(vp) ((vp)->header->diskstuff.restoredFromId)
746 #define V_needsCallback(vp) ((vp)->header->diskstuff.needsCallback)
747 #define V_destroyMe(vp) ((vp)->header->diskstuff.destroyMe)
748 #define V_dontSalvage(vp) ((vp)->header->diskstuff.dontSalvage)
749 #define V_maxquota(vp) ((vp)->header->diskstuff.maxquota)
750 #define V_minquota(vp) ((vp)->header->diskstuff.minquota)
751 #define V_maxfiles(vp) ((vp)->header->diskstuff.maxfiles)
752 #define V_accountNumber(vp) ((vp)->header->diskstuff.accountNumber)
753 #define V_owner(vp) ((vp)->header->diskstuff.owner)
754 #define V_filecount(vp) ((vp)->header->diskstuff.filecount)
755 #define V_diskused(vp) ((vp)->header->diskstuff.diskused)
756 #define V_dayUse(vp) ((vp)->header->diskstuff.dayUse)
757 #define V_weekUse(vp) ((vp)->header->diskstuff.weekUse)
758 #define V_dayUseDate(vp) ((vp)->header->diskstuff.dayUseDate)
759 #define V_creationDate(vp) ((vp)->header->diskstuff.creationDate)
760 #define V_accessDate(vp) ((vp)->header->diskstuff.accessDate)
761 #define V_updateDate(vp) ((vp)->header->diskstuff.updateDate)
762 #define V_expirationDate(vp) ((vp)->header->diskstuff.expirationDate)
763 #define V_backupDate(vp) ((vp)->header->diskstuff.backupDate)
764 #define V_copyDate(vp) ((vp)->header->diskstuff.copyDate)
765 #define V_offlineMessage(vp) ((vp)->header->diskstuff.offlineMessage)
766 #define V_disk(vp) ((vp)->header->diskstuff)
767 #define V_motd(vp) ((vp)->header->diskstuff.motd)
768 #define V_stat_initialized(vp) ((vp)->header->diskstuff.stat_initialized)
769 #define V_stat_area(vp) (((vp)->header->diskstuff.stat_reads))
770 #define V_stat_reads(vp, idx) (((vp)->header->diskstuff.stat_reads)[idx])
771 #define V_stat_writes(vp, idx) (((vp)->header->diskstuff.stat_writes)[idx])
772 #define V_stat_fileSameAuthor(vp, idx) (((vp)->header->diskstuff.stat_fileSameAuthor)[idx])
773 #define V_stat_fileDiffAuthor(vp, idx) (((vp)->header->diskstuff.stat_fileDiffAuthor)[idx])
774 #define V_stat_dirSameAuthor(vp, idx) (((vp)->header->diskstuff.stat_dirSameAuthor)[idx])
775 #define V_stat_dirDiffAuthor(vp, idx) (((vp)->header->diskstuff.stat_dirDiffAuthor)[idx])
776 #define V_volUpdateCounter(vp) ((vp)->header->diskstuff.volUpdateCounter)
778 /* File offset computations. The offset values in the volume header are
779 computed with these macros -- when the file is written only!! */
780 #define VOLUME_MOUNT_TABLE_OFFSET(Volume) (sizeof (VolumeDiskData))
781 #define VOLUME_BITMAP_OFFSET(Volume) \
782 (sizeof (VolumeDiskData) + (Volume)->disk.mountTableSize)
785 extern char *VSalvageMessage
; /* Canonical message when a volume is forced
787 extern Volume
*VGetVolume(Error
* ec
, Error
* client_ec
, VolumeId volumeId
);
788 extern Volume
*VGetVolumeWithCall(Error
* ec
, Error
* client_ec
, VolumeId volumeId
,
789 const struct timespec
*ts
, struct VCallByVol
*cbv
);
790 extern Volume
*VGetVolume_r(Error
* ec
, VolumeId volumeId
);
791 extern void VPutVolume(Volume
*);
792 extern void VPutVolumeWithCall(Volume
*vp
, struct VCallByVol
*cbv
);
793 extern void VPutVolume_r(Volume
*);
794 extern void VOffline(Volume
* vp
, char *message
);
795 extern void VOffline_r(Volume
* vp
, char *message
);
796 extern int VConnectFS(void);
797 extern int VConnectFS_r(void);
798 extern void VDisconnectFS(void);
799 extern void VDisconnectFS_r(void);
800 extern int VChildProcReconnectFS(void);
801 extern Volume
*VAttachVolume(Error
* ec
, VolumeId volumeId
, int mode
);
802 extern Volume
*VAttachVolume_r(Error
* ec
, VolumeId volumeId
, int mode
);
803 extern Volume
*VCreateVolume(Error
* ec
, char *partname
, VolumeId volumeId
,
805 extern Volume
*VCreateVolume_r(Error
* ec
, char *partname
, VolumeId volumeId
,
807 extern void VGrowBitmap(struct vnodeIndex
*index
);
808 extern int VAllocBitmapEntry(Error
* ec
, Volume
* vp
,
809 struct vnodeIndex
*index
);
810 extern int VAllocBitmapEntry_r(Error
* ec
, Volume
* vp
,
811 struct vnodeIndex
*index
, int flags
);
812 extern void VFreeBitMapEntry(Error
* ec
, Volume
*vp
, struct vnodeIndex
*index
,
814 extern void VFreeBitMapEntry_r(Error
* ec
, Volume
*vp
, struct vnodeIndex
*index
,
815 unsigned bitNumber
, int flags
);
816 extern int VolumeNumber(char *name
);
817 extern char *VolumeExternalName(VolumeId volumeId
);
818 extern int VolumeExternalName_r(VolumeId volumeId
, char *name
, size_t len
);
819 extern Volume
*VAttachVolumeByName(Error
* ec
, char *partition
, char *name
,
821 extern Volume
*VAttachVolumeByName_r(Error
* ec
, char *partition
, char *name
,
823 extern void VShutdown(void);
824 extern void VSetTranquil(void);
825 extern void VUpdateVolume(Error
* ec
, Volume
* vp
);
826 extern void VUpdateVolume_r(Error
* ec
, Volume
* vp
, int flags
);
827 extern void VAddToVolumeUpdateList(Error
* ec
, Volume
* vp
);
828 extern void VAddToVolumeUpdateList_r(Error
* ec
, Volume
* vp
);
829 extern void VDetachVolume(Error
* ec
, Volume
* vp
);
830 extern void VDetachVolume_r(Error
* ec
, Volume
* vp
);
831 extern void VForceOffline(Volume
* vp
);
832 extern void VForceOffline_r(Volume
* vp
, int flags
);
833 extern void VBumpVolumeUsage(Volume
* vp
);
834 extern void VBumpVolumeUsage_r(Volume
* vp
);
835 extern void VSetDiskUsage(void);
836 extern void VPrintCacheStats(void);
837 extern void VReleaseVnodeFiles_r(Volume
* vp
);
838 extern void VCloseVnodeFiles_r(Volume
* vp
);
839 extern struct DiskPartition64
*VGetPartition(char *name
, int abortp
);
840 extern struct DiskPartition64
*VGetPartition_r(char *name
, int abortp
);
841 extern void VOptDefaults(ProgramType pt
, VolumePackageOptions
* opts
);
842 extern int VInitVolumePackage2(ProgramType pt
, VolumePackageOptions
* opts
);
843 extern int VInitAttachVolumes(ProgramType pt
);
844 extern void DiskToVolumeHeader(VolumeHeader_t
* h
, VolumeDiskHeader_t
* dh
);
845 extern void VolumeHeaderToDisk(VolumeDiskHeader_t
* dh
, VolumeHeader_t
* h
);
846 extern void AssignVolumeName(VolumeDiskData
* vol
, char *name
, char *ext
);
847 extern void VTakeOffline_r(Volume
* vp
);
848 extern void VTakeOffline(Volume
* vp
);
849 extern Volume
* VLookupVolume_r(Error
* ec
, VolumeId volumeId
, Volume
* hint
);
850 extern void VGetVolumePath(Error
* ec
, VolumeId volumeId
, char **partitionp
,
852 extern char *vol_DevName(dev_t adev
, char *wpath
);
853 extern afs_int32
VIsGoingOffline(struct Volume
*vp
);
856 extern void VLockFileInit(struct VLockFile
*lf
, const char *path
);
857 extern void VLockFileReinit(struct VLockFile
*lf
);
858 extern int VLockFileLock(struct VLockFile
*lf
, afs_uint32 offset
,
859 int locktype
, int nonblock
);
860 extern void VLockFileUnlock(struct VLockFile
*lf
, afs_uint32 offset
);
862 extern int VSetVolHashSize(int logsize
);
864 #ifdef AFS_DEMAND_ATTACH_FS
865 extern Volume
*VPreAttachVolumeByName(Error
* ec
, char *partition
, char *name
);
866 extern Volume
*VPreAttachVolumeByName_r(Error
* ec
, char *partition
, char *name
);
867 extern Volume
*VPreAttachVolumeById_r(Error
* ec
, char * partition
,
869 extern Volume
*VPreAttachVolumeByVp_r(Error
* ec
, struct DiskPartition64
* partp
,
870 Volume
* vp
, VolumeId volume_id
);
871 extern Volume
*VGetVolumeByVp_r(Error
* ec
, Volume
* vp
);
872 extern int VShutdownByPartition_r(struct DiskPartition64
* dp
);
873 extern int VShutdownVolume_r(Volume
* vp
);
874 extern int VConnectSALV(void);
875 extern int VConnectSALV_r(void);
876 extern int VReconnectSALV(void);
877 extern int VReconnectSALV_r(void);
878 extern int VDisconnectSALV(void);
879 extern int VDisconnectSALV_r(void);
880 extern void VPrintExtendedCacheStats(int flags
);
881 extern void VPrintExtendedCacheStats_r(int flags
);
882 extern void VLRU_SetOptions(int option
, afs_uint32 val
);
883 extern int VRequestSalvage_r(Error
* ec
, Volume
* vp
, int reason
, int flags
);
884 extern int VUpdateSalvagePriority_r(Volume
* vp
);
885 extern int VRegisterVolOp_r(Volume
* vp
, FSSYNC_VolOp_info
* vopinfo
);
886 extern int VDeregisterVolOp_r(Volume
* vp
);
887 extern void VCancelReservation_r(Volume
* vp
);
888 extern int VChildProcReconnectFS_r(void);
889 extern void VOfflineForVolOp_r(Error
*ec
, Volume
*vp
, char *message
);
890 #endif /* AFS_DEMAND_ATTACH_FS */
892 #ifdef AFS_DEMAND_ATTACH_FS
894 extern void VDiskLockInit(struct VDiskLock
*dl
, struct VLockFile
*lf
,
896 extern int VGetDiskLock(struct VDiskLock
*dl
, int locktype
, int nonblock
);
897 extern void VReleaseDiskLock(struct VDiskLock
*dl
, int locktype
);
898 #endif /* AFS_DEMAND_ATTACH_FS */
899 extern int VVolOpLeaveOnline_r(Volume
* vp
, FSSYNC_VolOp_info
* vopinfo
);
900 extern int VVolOpLeaveOnlineNoHeader_r(Volume
* vp
, FSSYNC_VolOp_info
* vopinfo
);
901 extern int VVolOpSetVBusy_r(Volume
* vp
, FSSYNC_VolOp_info
* vopinfo
);
903 extern void VPurgeVolume(Error
* ec
, Volume
* vp
);
905 extern afs_int32
VCanScheduleSalvage(void);
906 extern afs_int32
VCanUseFSSYNC(void);
907 extern afs_int32
VCanUseSALVSYNC(void);
908 extern afs_int32
VCanUnsafeAttach(void);
909 extern afs_int32
VReadVolumeDiskHeader(VolumeId volid
,
910 struct DiskPartition64
* dp
,
911 VolumeDiskHeader_t
* hdr
);
912 extern afs_int32
VWriteVolumeDiskHeader(VolumeDiskHeader_t
* hdr
,
913 struct DiskPartition64
* dp
);
914 extern afs_int32
VCreateVolumeDiskHeader(VolumeDiskHeader_t
* hdr
,
915 struct DiskPartition64
* dp
);
916 extern afs_int32
VDestroyVolumeDiskHeader(struct DiskPartition64
* dp
,
917 VolumeId volid
, VolumeId parent
);
920 * VWalkVolumeHeaders header callback.
922 * @param[in] dp disk partition
923 * @param[in] name full path to the .vol header file
924 * @param[in] hdr the header data that was read from the .vol header
925 * @param[in] last 1 if this is the last attempt to read the vol header, 0
926 * otherwise. DAFS VWalkVolumeHeaders will retry reading the
927 * header once, if a non-fatal error occurs when reading the
928 * header, or if this function returns a positive error code.
929 * So, if there is a problem, this function will be called
930 * first with last=0, then with last=1, then the error function
931 * callback will be called. For non-DAFS, this is always 1.
932 * @param[in] rock the rock passed to VWalkVolumeHeaders
934 * @return operation status
936 * @retval negative a fatal error that should stop the walk immediately
937 * @retval positive an error with the volume header was encountered; the walk
938 * should continue, but the error function should be called on this
941 * @see VWalkVolumeHeaders
943 typedef int (*VWalkVolFunc
)(struct DiskPartition64
*dp
, const char *name
,
944 struct VolumeDiskHeader
*hdr
, int last
,
947 * VWalkVolumeHeaders error callback.
949 * This is called from VWalkVolumeHeaders when an invalid or otherwise
950 * problematic volume header is encountered. It is typically implemented as a
951 * wrapper to unlink the .vol file.
953 * @param[in] dp disk partition
954 * @param[in] name full path to the .vol header file
955 * @param[in] hdr header read in from the .vol file, or NULL if it could not
957 * @param[in] rock rock passed to VWalkVolumeHeaders
959 * @see VWalkVolumeHeaders
961 typedef void (*VWalkErrFunc
)(struct DiskPartition64
*dp
, const char *name
,
962 struct VolumeDiskHeader
*hdr
, void *rock
);
963 extern int VWalkVolumeHeaders(struct DiskPartition64
*dp
, const char *partpath
,
964 VWalkVolFunc volfunc
, VWalkErrFunc errfunc
,
967 /* Naive formula relating number of file size to number of 1K blocks in file */
968 /* Note: we charge 1 block for 0 length files so the user can't store
969 an inifite number of them; for most files, we give him the inode, vnode,
970 and indirect block overhead, for FREE! */
971 #define nBlocks(bytes) ((afs_sfsize_t)((bytes) == 0? 1: (((afs_sfsize_t)(bytes))+1023)/1024))
973 /* Client process id -- file server sends a Check volumes signal back to the client at this pid */
974 #define CLIENTPID "/vice/vol/clientpid"
976 /* Modes of attachment, for VAttachVolume[ByName] to convey to the file server */
977 #define V_READONLY 1 /* Absolutely no updates will be done to the volume */
978 #define V_CLONE 2 /* Cloning the volume: if it is read/write, then directory
979 * version numbers will change. Header will be updated. If
980 * the volume is read-only, the file server may continue to
981 * server it; it may also continue to server it in read/write
982 * mode if the writes are deferred */
983 #define V_VOLUPD 3 /* General update or volume purge is possible. Volume must
985 #define V_DUMP 4 /* A dump of the volume is requested; the volume can be served
986 * read-only during this time */
987 #define V_SECRETLY 5 /* Secret attach of the volume. This is used to attach a volume
988 * which the file server doesn't know about--and which it shouldn't
989 * know about yet, since the volume has just been created and
990 * is somewhat bogus. Required to make sure that a file server
991 * never knows about more than one copy of the same volume--when
992 * a volume is moved from one partition to another on a single
994 #define V_PEEK 6 /* "Peek" at the volume without telling the fileserver. This is
995 * similar to V_SECRETLY, but read-only. It is used in cases where
996 * not impacting fileserver performance is more important than
997 * getting the most recent data. */
1001 /* VUpdateVolume_r flags */
1002 #define VOL_UPDATE_WAIT 0x1 /* for demand attach, wait for other exclusive ops to end */
1003 #define VOL_UPDATE_NOFORCEOFF 0x2 /* don't force offline on failure. this is to prevent
1004 * infinite recursion between vupdate and vforceoff */
1006 /* VForceOffline_r flags */
1007 #define VOL_FORCEOFF_NOUPDATE 0x1 /* don't force update on forceoff. this is to prevent
1008 * infinite recursion between vupdate and vforceoff */
1010 /* VSyncVolume_r flags */
1011 #define VOL_SYNC_WAIT 0x1 /* for demand attach, wait for other exclusive ops to end */
1013 /* VAllocBitmapEntry_r flags */
1014 #define VOL_ALLOC_BITMAP_WAIT 0x1 /* for demand attach, wait for other exclusive ops to end */
1016 /* VFreeBitMapEntry_r flags */
1017 #define VOL_FREE_BITMAP_WAIT 0x1 /* for demand attach, wait for other exclusive ops to end */
1019 /* VRequestSalvage_r flags */
1020 #define VOL_SALVAGE_NO_OFFLINE 0x1 /* we do not need to wait to offline the volume; it has
1021 * not been fully attached */
1023 #define VOLUME_BITMAP_GROWSIZE 16 /* bytes, => 128vnodes */
1024 /* Must be a multiple of 4 (1 word) !! */
1026 #if defined(NEARINODE_HINT)
1027 #define V_pref(vp,nearInode) nearInodeHash(V_id(vp),(nearInode)); (nearInode) %= V_partition(vp)->f_files
1029 #define V_pref(vp,nearInode) nearInode = 0
1030 #endif /* NEARINODE_HINT */
1032 hdr_static_inline(unsigned long)
1033 afs_printable_VolumeId_lu(VolumeId d
) { return (unsigned long) (d
); }
1035 hdr_static_inline(unsigned int)
1036 afs_printable_VnodeId_u(VnodeId d
) { return (unsigned int) d
; }
1038 #endif /* __volume_h */