Commit | Line | Data |
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ec26815a | 1 | /* internal AFS stuff |
1da177e4 | 2 | * |
08e0e7c8 | 3 | * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
1da177e4 LT |
4 | * Written by David Howells (dhowells@redhat.com) |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
1da177e4 LT |
12 | #include <linux/compiler.h> |
13 | #include <linux/kernel.h> | |
8a79790b | 14 | #include <linux/ktime.h> |
1da177e4 LT |
15 | #include <linux/fs.h> |
16 | #include <linux/pagemap.h> | |
08e0e7c8 | 17 | #include <linux/rxrpc.h> |
00d3b7a4 | 18 | #include <linux/key.h> |
e8edc6e0 | 19 | #include <linux/workqueue.h> |
00c541ea | 20 | #include <linux/sched.h> |
80e50be4 | 21 | #include <linux/fscache.h> |
e1da0222 | 22 | #include <linux/backing-dev.h> |
ff548773 | 23 | #include <linux/uuid.h> |
8324f0bc | 24 | #include <net/af_rxrpc.h> |
00c541ea | 25 | |
08e0e7c8 DH |
26 | #include "afs.h" |
27 | #include "afs_vl.h" | |
28 | ||
29 | #define AFS_CELL_MAX_ADDRS 15 | |
30 | ||
31143d5d | 31 | struct pagevec; |
08e0e7c8 DH |
32 | struct afs_call; |
33 | ||
34 | typedef enum { | |
35 | AFS_VL_NEW, /* new, uninitialised record */ | |
36 | AFS_VL_CREATING, /* creating record */ | |
37 | AFS_VL_VALID, /* record is pending */ | |
38 | AFS_VL_NO_VOLUME, /* no such volume available */ | |
39 | AFS_VL_UPDATING, /* update in progress */ | |
40 | AFS_VL_VOLUME_DELETED, /* volume was deleted */ | |
41 | AFS_VL_UNCERTAIN, /* uncertain state (update failed) */ | |
42 | } __attribute__((packed)) afs_vlocation_state_t; | |
1da177e4 | 43 | |
00d3b7a4 DH |
44 | struct afs_mount_params { |
45 | bool rwpath; /* T if the parent should be considered R/W */ | |
46 | bool force; /* T to force cell type */ | |
bec5eb61 | 47 | bool autocell; /* T if set auto mount operation */ |
00d3b7a4 DH |
48 | afs_voltype_t type; /* type of volume requested */ |
49 | int volnamesz; /* size of volume name */ | |
50 | const char *volname; /* name of volume to mount */ | |
51 | struct afs_cell *cell; /* cell in which to find volume */ | |
52 | struct afs_volume *volume; /* volume record */ | |
53 | struct key *key; /* key to use for secure mounting */ | |
54 | }; | |
55 | ||
8e8d7f13 DH |
56 | enum afs_call_state { |
57 | AFS_CALL_REQUESTING, /* request is being sent for outgoing call */ | |
58 | AFS_CALL_AWAIT_REPLY, /* awaiting reply to outgoing call */ | |
59 | AFS_CALL_AWAIT_OP_ID, /* awaiting op ID on incoming call */ | |
60 | AFS_CALL_AWAIT_REQUEST, /* awaiting request data on incoming call */ | |
61 | AFS_CALL_REPLYING, /* replying to incoming call */ | |
62 | AFS_CALL_AWAIT_ACK, /* awaiting final ACK of incoming call */ | |
63 | AFS_CALL_COMPLETE, /* Completed or failed */ | |
64 | }; | |
08e0e7c8 DH |
65 | /* |
66 | * a record of an in-progress RxRPC call | |
67 | */ | |
68 | struct afs_call { | |
69 | const struct afs_call_type *type; /* type of call */ | |
08e0e7c8 | 70 | wait_queue_head_t waitq; /* processes awaiting completion */ |
341f741f | 71 | struct work_struct async_work; /* async I/O processor */ |
08e0e7c8 | 72 | struct work_struct work; /* actual work processor */ |
08e0e7c8 DH |
73 | struct rxrpc_call *rxcall; /* RxRPC call handle */ |
74 | struct key *key; /* security for this call */ | |
75 | struct afs_server *server; /* server affected by incoming CM call */ | |
76 | void *request; /* request data (first part) */ | |
31143d5d DH |
77 | struct address_space *mapping; /* page set */ |
78 | struct afs_writeback *wb; /* writeback being performed */ | |
08e0e7c8 DH |
79 | void *buffer; /* reply receive buffer */ |
80 | void *reply; /* reply buffer (first part) */ | |
81 | void *reply2; /* reply buffer (second part) */ | |
82 | void *reply3; /* reply buffer (third part) */ | |
260a9803 | 83 | void *reply4; /* reply buffer (fourth part) */ |
31143d5d DH |
84 | pgoff_t first; /* first page in mapping to deal with */ |
85 | pgoff_t last; /* last page in mapping to deal with */ | |
d001648e | 86 | size_t offset; /* offset into received data store */ |
341f741f | 87 | atomic_t usage; |
8e8d7f13 | 88 | enum afs_call_state state; |
08e0e7c8 | 89 | int error; /* error code */ |
d001648e | 90 | u32 abort_code; /* Remote abort ID or 0 */ |
08e0e7c8 DH |
91 | unsigned request_size; /* size of request data */ |
92 | unsigned reply_max; /* maximum size of reply */ | |
31143d5d | 93 | unsigned first_offset; /* offset into mapping[first] */ |
bcd89270 MD |
94 | union { |
95 | unsigned last_to; /* amount of mapping[last] */ | |
96 | unsigned count2; /* count used in unmarshalling */ | |
97 | }; | |
08e0e7c8 DH |
98 | unsigned char unmarshall; /* unmarshalling phase */ |
99 | bool incoming; /* T if incoming call */ | |
31143d5d | 100 | bool send_pages; /* T if data from mapping should be sent */ |
d001648e | 101 | bool need_attention; /* T if RxRPC poked us */ |
56ff9c83 | 102 | bool async; /* T if asynchronous */ |
08e0e7c8 DH |
103 | u16 service_id; /* RxRPC service ID to call */ |
104 | __be16 port; /* target UDP port */ | |
50a2c953 | 105 | u32 operation_ID; /* operation ID for an incoming call */ |
08e0e7c8 DH |
106 | u32 count; /* count for use in unmarshalling */ |
107 | __be32 tmp; /* place to extract temporary data */ | |
31143d5d | 108 | afs_dataversion_t store_version; /* updated version expected from store */ |
08e0e7c8 DH |
109 | }; |
110 | ||
111 | struct afs_call_type { | |
00d3b7a4 DH |
112 | const char *name; |
113 | ||
08e0e7c8 DH |
114 | /* deliver request or reply data to an call |
115 | * - returning an error will cause the call to be aborted | |
116 | */ | |
d001648e | 117 | int (*deliver)(struct afs_call *call); |
08e0e7c8 DH |
118 | |
119 | /* map an abort code to an error number */ | |
120 | int (*abort_to_error)(u32 abort_code); | |
121 | ||
122 | /* clean up a call */ | |
123 | void (*destructor)(struct afs_call *call); | |
341f741f DH |
124 | |
125 | /* Work function */ | |
126 | void (*work)(struct work_struct *work); | |
08e0e7c8 DH |
127 | }; |
128 | ||
196ee9cd DH |
129 | /* |
130 | * Record of an outstanding read operation on a vnode. | |
131 | */ | |
132 | struct afs_read { | |
133 | loff_t pos; /* Where to start reading */ | |
e8e581a8 | 134 | loff_t len; /* How much we're asking for */ |
196ee9cd | 135 | loff_t actual_len; /* How much we're actually getting */ |
6a0e3999 | 136 | loff_t remain; /* Amount remaining */ |
196ee9cd | 137 | atomic_t usage; |
196ee9cd | 138 | unsigned int index; /* Which page we're reading into */ |
196ee9cd DH |
139 | unsigned int nr_pages; |
140 | void (*page_done)(struct afs_call *, struct afs_read *); | |
141 | struct page *pages[]; | |
142 | }; | |
143 | ||
31143d5d DH |
144 | /* |
145 | * record of an outstanding writeback on a vnode | |
146 | */ | |
147 | struct afs_writeback { | |
148 | struct list_head link; /* link in vnode->writebacks */ | |
149 | struct work_struct writer; /* work item to perform the writeback */ | |
150 | struct afs_vnode *vnode; /* vnode to which this write applies */ | |
151 | struct key *key; /* owner of this write */ | |
152 | wait_queue_head_t waitq; /* completion and ready wait queue */ | |
153 | pgoff_t first; /* first page in batch */ | |
154 | pgoff_t point; /* last page in current store op */ | |
155 | pgoff_t last; /* last page in batch (inclusive) */ | |
156 | unsigned offset_first; /* offset into first page of start of write */ | |
157 | unsigned to_last; /* offset into last page of end of write */ | |
158 | int num_conflicts; /* count of conflicting writes in list */ | |
159 | int usage; | |
160 | bool conflicts; /* T if has dependent conflicts */ | |
161 | enum { | |
162 | AFS_WBACK_SYNCING, /* synchronisation being performed */ | |
163 | AFS_WBACK_PENDING, /* write pending */ | |
164 | AFS_WBACK_CONFLICTING, /* conflicting writes posted */ | |
165 | AFS_WBACK_WRITING, /* writing back */ | |
166 | AFS_WBACK_COMPLETE /* the writeback record has been unlinked */ | |
167 | } state __attribute__((packed)); | |
168 | }; | |
169 | ||
08e0e7c8 DH |
170 | /* |
171 | * AFS superblock private data | |
172 | * - there's one superblock per volume | |
173 | */ | |
174 | struct afs_super_info { | |
175 | struct afs_volume *volume; /* volume record */ | |
176 | char rwparent; /* T if parent is R/W AFS volume */ | |
177 | }; | |
1da177e4 | 178 | |
08e0e7c8 DH |
179 | static inline struct afs_super_info *AFS_FS_S(struct super_block *sb) |
180 | { | |
181 | return sb->s_fs_info; | |
1da177e4 LT |
182 | } |
183 | ||
08e0e7c8 DH |
184 | extern struct file_system_type afs_fs_type; |
185 | ||
186 | /* | |
187 | * entry in the cached cell catalogue | |
188 | */ | |
189 | struct afs_cache_cell { | |
00d3b7a4 DH |
190 | char name[AFS_MAXCELLNAME]; /* cell name (padded with NULs) */ |
191 | struct in_addr vl_servers[15]; /* cached cell VL servers */ | |
08e0e7c8 DH |
192 | }; |
193 | ||
194 | /* | |
195 | * AFS cell record | |
196 | */ | |
197 | struct afs_cell { | |
198 | atomic_t usage; | |
199 | struct list_head link; /* main cell list link */ | |
00d3b7a4 | 200 | struct key *anonymous_key; /* anonymous user key for this cell */ |
08e0e7c8 | 201 | struct list_head proc_link; /* /proc cell list link */ |
9b3f26c9 DH |
202 | #ifdef CONFIG_AFS_FSCACHE |
203 | struct fscache_cookie *cache; /* caching cookie */ | |
08e0e7c8 DH |
204 | #endif |
205 | ||
206 | /* server record management */ | |
207 | rwlock_t servers_lock; /* active server list lock */ | |
208 | struct list_head servers; /* active server list */ | |
209 | ||
210 | /* volume location record management */ | |
211 | struct rw_semaphore vl_sem; /* volume management serialisation semaphore */ | |
212 | struct list_head vl_list; /* cell's active VL record list */ | |
213 | spinlock_t vl_lock; /* vl_list lock */ | |
214 | unsigned short vl_naddrs; /* number of VL servers in addr list */ | |
215 | unsigned short vl_curr_svix; /* current server index */ | |
216 | struct in_addr vl_addrs[AFS_CELL_MAX_ADDRS]; /* cell VL server addresses */ | |
217 | ||
218 | char name[0]; /* cell name - must go last */ | |
219 | }; | |
220 | ||
221 | /* | |
222 | * entry in the cached volume location catalogue | |
223 | */ | |
224 | struct afs_cache_vlocation { | |
00d3b7a4 DH |
225 | /* volume name (lowercase, padded with NULs) */ |
226 | uint8_t name[AFS_MAXVOLNAME + 1]; | |
227 | ||
08e0e7c8 DH |
228 | uint8_t nservers; /* number of entries used in servers[] */ |
229 | uint8_t vidmask; /* voltype mask for vid[] */ | |
230 | uint8_t srvtmask[8]; /* voltype masks for servers[] */ | |
231 | #define AFS_VOL_VTM_RW 0x01 /* R/W version of the volume is available (on this server) */ | |
232 | #define AFS_VOL_VTM_RO 0x02 /* R/O version of the volume is available (on this server) */ | |
233 | #define AFS_VOL_VTM_BAK 0x04 /* backup version of the volume is available (on this server) */ | |
234 | ||
235 | afs_volid_t vid[3]; /* volume IDs for R/W, R/O and Bak volumes */ | |
236 | struct in_addr servers[8]; /* fileserver addresses */ | |
237 | time_t rtime; /* last retrieval time */ | |
238 | }; | |
239 | ||
240 | /* | |
241 | * volume -> vnode hash table entry | |
242 | */ | |
243 | struct afs_cache_vhash { | |
244 | afs_voltype_t vtype; /* which volume variation */ | |
245 | uint8_t hash_bucket; /* which hash bucket this represents */ | |
246 | } __attribute__((packed)); | |
247 | ||
248 | /* | |
249 | * AFS volume location record | |
250 | */ | |
251 | struct afs_vlocation { | |
252 | atomic_t usage; | |
8a79790b | 253 | time64_t time_of_death; /* time at which put reduced usage to 0 */ |
08e0e7c8 DH |
254 | struct list_head link; /* link in cell volume location list */ |
255 | struct list_head grave; /* link in master graveyard list */ | |
256 | struct list_head update; /* link in master update list */ | |
257 | struct afs_cell *cell; /* cell to which volume belongs */ | |
9b3f26c9 DH |
258 | #ifdef CONFIG_AFS_FSCACHE |
259 | struct fscache_cookie *cache; /* caching cookie */ | |
08e0e7c8 DH |
260 | #endif |
261 | struct afs_cache_vlocation vldb; /* volume information DB record */ | |
262 | struct afs_volume *vols[3]; /* volume access record pointer (index by type) */ | |
263 | wait_queue_head_t waitq; /* status change waitqueue */ | |
8a79790b | 264 | time64_t update_at; /* time at which record should be updated */ |
39bf0949 | 265 | spinlock_t lock; /* access lock */ |
08e0e7c8 DH |
266 | afs_vlocation_state_t state; /* volume location state */ |
267 | unsigned short upd_rej_cnt; /* ENOMEDIUM count during update */ | |
268 | unsigned short upd_busy_cnt; /* EBUSY count during update */ | |
269 | bool valid; /* T if valid */ | |
270 | }; | |
271 | ||
272 | /* | |
273 | * AFS fileserver record | |
274 | */ | |
275 | struct afs_server { | |
276 | atomic_t usage; | |
8a79790b | 277 | time64_t time_of_death; /* time at which put reduced usage to 0 */ |
08e0e7c8 DH |
278 | struct in_addr addr; /* server address */ |
279 | struct afs_cell *cell; /* cell in which server resides */ | |
280 | struct list_head link; /* link in cell's server list */ | |
281 | struct list_head grave; /* link in master graveyard list */ | |
282 | struct rb_node master_rb; /* link in master by-addr tree */ | |
283 | struct rw_semaphore sem; /* access lock */ | |
284 | ||
285 | /* file service access */ | |
286 | struct rb_root fs_vnodes; /* vnodes backed by this server (ordered by FID) */ | |
287 | unsigned long fs_act_jif; /* time at which last activity occurred */ | |
288 | unsigned long fs_dead_jif; /* time at which no longer to be considered dead */ | |
289 | spinlock_t fs_lock; /* access lock */ | |
290 | int fs_state; /* 0 or reason FS currently marked dead (-errno) */ | |
291 | ||
292 | /* callback promise management */ | |
293 | struct rb_root cb_promises; /* vnode expiration list (ordered earliest first) */ | |
294 | struct delayed_work cb_updater; /* callback updater */ | |
295 | struct delayed_work cb_break_work; /* collected break dispatcher */ | |
296 | wait_queue_head_t cb_break_waitq; /* space available in cb_break waitqueue */ | |
297 | spinlock_t cb_lock; /* access lock */ | |
298 | struct afs_callback cb_break[64]; /* ring of callbacks awaiting breaking */ | |
299 | atomic_t cb_break_n; /* number of pending breaks */ | |
300 | u8 cb_break_head; /* head of callback breaking ring */ | |
301 | u8 cb_break_tail; /* tail of callback breaking ring */ | |
302 | }; | |
303 | ||
304 | /* | |
305 | * AFS volume access record | |
306 | */ | |
307 | struct afs_volume { | |
308 | atomic_t usage; | |
309 | struct afs_cell *cell; /* cell to which belongs (unrefd ptr) */ | |
310 | struct afs_vlocation *vlocation; /* volume location */ | |
9b3f26c9 DH |
311 | #ifdef CONFIG_AFS_FSCACHE |
312 | struct fscache_cookie *cache; /* caching cookie */ | |
08e0e7c8 DH |
313 | #endif |
314 | afs_volid_t vid; /* volume ID */ | |
315 | afs_voltype_t type; /* type of volume */ | |
316 | char type_force; /* force volume type (suppress R/O -> R/W) */ | |
317 | unsigned short nservers; /* number of server slots filled */ | |
318 | unsigned short rjservers; /* number of servers discarded due to -ENOMEDIUM */ | |
319 | struct afs_server *servers[8]; /* servers on which volume resides (ordered) */ | |
320 | struct rw_semaphore server_sem; /* lock for accessing current server */ | |
321 | }; | |
322 | ||
323 | /* | |
324 | * vnode catalogue entry | |
325 | */ | |
326 | struct afs_cache_vnode { | |
327 | afs_vnodeid_t vnode_id; /* vnode ID */ | |
328 | unsigned vnode_unique; /* vnode ID uniquifier */ | |
329 | afs_dataversion_t data_version; /* data version */ | |
330 | }; | |
331 | ||
332 | /* | |
333 | * AFS inode private data | |
334 | */ | |
335 | struct afs_vnode { | |
336 | struct inode vfs_inode; /* the VFS's inode record */ | |
337 | ||
338 | struct afs_volume *volume; /* volume on which vnode resides */ | |
339 | struct afs_server *server; /* server currently supplying this file */ | |
340 | struct afs_fid fid; /* the file identifier for this inode */ | |
341 | struct afs_file_status status; /* AFS status info for this file */ | |
9b3f26c9 DH |
342 | #ifdef CONFIG_AFS_FSCACHE |
343 | struct fscache_cookie *cache; /* caching cookie */ | |
08e0e7c8 | 344 | #endif |
00d3b7a4 DH |
345 | struct afs_permits *permits; /* cache of permits so far obtained */ |
346 | struct mutex permits_lock; /* lock for altering permits list */ | |
260a9803 | 347 | struct mutex validate_lock; /* lock for validating this vnode */ |
08e0e7c8 | 348 | wait_queue_head_t update_waitq; /* status fetch waitqueue */ |
260a9803 | 349 | int update_cnt; /* number of outstanding ops that will update the |
08e0e7c8 | 350 | * status */ |
31143d5d | 351 | spinlock_t writeback_lock; /* lock for writebacks */ |
08e0e7c8 DH |
352 | spinlock_t lock; /* waitqueue/flags lock */ |
353 | unsigned long flags; | |
354 | #define AFS_VNODE_CB_BROKEN 0 /* set if vnode's callback was broken */ | |
260a9803 | 355 | #define AFS_VNODE_UNSET 1 /* set if vnode attributes not yet set */ |
08e0e7c8 DH |
356 | #define AFS_VNODE_MODIFIED 2 /* set if vnode's data modified */ |
357 | #define AFS_VNODE_ZAP_DATA 3 /* set if vnode's data should be invalidated */ | |
358 | #define AFS_VNODE_DELETED 4 /* set if vnode deleted on server */ | |
359 | #define AFS_VNODE_MOUNTPOINT 5 /* set if vnode is a mountpoint symlink */ | |
e8d6c554 DH |
360 | #define AFS_VNODE_LOCKING 6 /* set if waiting for lock on vnode */ |
361 | #define AFS_VNODE_READLOCKED 7 /* set if vnode is read-locked on the server */ | |
362 | #define AFS_VNODE_WRITELOCKED 8 /* set if vnode is write-locked on the server */ | |
363 | #define AFS_VNODE_UNLOCKING 9 /* set if vnode is being unlocked on the server */ | |
bec5eb61 | 364 | #define AFS_VNODE_AUTOCELL 10 /* set if Vnode is an auto mount point */ |
365 | #define AFS_VNODE_PSEUDODIR 11 /* set if Vnode is a pseudo directory */ | |
08e0e7c8 | 366 | |
00d3b7a4 DH |
367 | long acl_order; /* ACL check count (callback break count) */ |
368 | ||
31143d5d | 369 | struct list_head writebacks; /* alterations in pagecache that need writing */ |
e8d6c554 DH |
370 | struct list_head pending_locks; /* locks waiting to be granted */ |
371 | struct list_head granted_locks; /* locks granted on this file */ | |
372 | struct delayed_work lock_work; /* work to be done in locking */ | |
373 | struct key *unlock_key; /* key to be used in unlocking */ | |
31143d5d | 374 | |
08e0e7c8 DH |
375 | /* outstanding callback notification on this file */ |
376 | struct rb_node server_rb; /* link in server->fs_vnodes */ | |
377 | struct rb_node cb_promise; /* link in server->cb_promises */ | |
378 | struct work_struct cb_broken_work; /* work to be done on callback break */ | |
56e71431 TR |
379 | time64_t cb_expires; /* time at which callback expires */ |
380 | time64_t cb_expires_at; /* time used to order cb_promise */ | |
08e0e7c8 DH |
381 | unsigned cb_version; /* callback version */ |
382 | unsigned cb_expiry; /* callback expiry time */ | |
383 | afs_callback_type_t cb_type; /* type of callback */ | |
384 | bool cb_promised; /* true if promise still holds */ | |
385 | }; | |
386 | ||
00d3b7a4 DH |
387 | /* |
388 | * cached security record for one user's attempt to access a vnode | |
389 | */ | |
390 | struct afs_permit { | |
391 | struct key *key; /* RxRPC ticket holding a security context */ | |
392 | afs_access_t access_mask; /* access mask for this key */ | |
393 | }; | |
394 | ||
395 | /* | |
396 | * cache of security records from attempts to access a vnode | |
397 | */ | |
398 | struct afs_permits { | |
399 | struct rcu_head rcu; /* disposal procedure */ | |
400 | int count; /* number of records */ | |
401 | struct afs_permit permits[0]; /* the permits so far examined */ | |
402 | }; | |
403 | ||
b908fe6b DH |
404 | /* |
405 | * record of one of a system's set of network interfaces | |
406 | */ | |
407 | struct afs_interface { | |
b908fe6b DH |
408 | struct in_addr address; /* IPv4 address bound to interface */ |
409 | struct in_addr netmask; /* netmask applied to address */ | |
410 | unsigned mtu; /* MTU of interface */ | |
411 | }; | |
412 | ||
41bb26f8 CH |
413 | struct afs_uuid { |
414 | __be32 time_low; /* low part of timestamp */ | |
415 | __be16 time_mid; /* mid part of timestamp */ | |
416 | __be16 time_hi_and_version; /* high part of timestamp and version */ | |
417 | __u8 clock_seq_hi_and_reserved; /* clock seq hi and variant */ | |
418 | __u8 clock_seq_low; /* clock seq low */ | |
419 | __u8 node[6]; /* spatially unique node ID (MAC addr) */ | |
420 | }; | |
421 | ||
08e0e7c8 | 422 | /*****************************************************************************/ |
9b3f26c9 DH |
423 | /* |
424 | * cache.c | |
425 | */ | |
426 | #ifdef CONFIG_AFS_FSCACHE | |
427 | extern struct fscache_netfs afs_cache_netfs; | |
428 | extern struct fscache_cookie_def afs_cell_cache_index_def; | |
429 | extern struct fscache_cookie_def afs_vlocation_cache_index_def; | |
430 | extern struct fscache_cookie_def afs_volume_cache_index_def; | |
431 | extern struct fscache_cookie_def afs_vnode_cache_index_def; | |
432 | #else | |
433 | #define afs_cell_cache_index_def (*(struct fscache_cookie_def *) NULL) | |
434 | #define afs_vlocation_cache_index_def (*(struct fscache_cookie_def *) NULL) | |
435 | #define afs_volume_cache_index_def (*(struct fscache_cookie_def *) NULL) | |
436 | #define afs_vnode_cache_index_def (*(struct fscache_cookie_def *) NULL) | |
437 | #endif | |
438 | ||
08e0e7c8 DH |
439 | /* |
440 | * callback.c | |
441 | */ | |
442 | extern void afs_init_callback_state(struct afs_server *); | |
443 | extern void afs_broken_callback_work(struct work_struct *); | |
444 | extern void afs_break_callbacks(struct afs_server *, size_t, | |
445 | struct afs_callback[]); | |
260a9803 | 446 | extern void afs_discard_callback_on_delete(struct afs_vnode *); |
08e0e7c8 DH |
447 | extern void afs_give_up_callback(struct afs_vnode *); |
448 | extern void afs_dispatch_give_up_callbacks(struct work_struct *); | |
449 | extern void afs_flush_callback_breaks(struct afs_server *); | |
450 | extern int __init afs_callback_update_init(void); | |
fbb3fcba | 451 | extern void afs_callback_update_kill(void); |
08e0e7c8 | 452 | |
1da177e4 LT |
453 | /* |
454 | * cell.c | |
455 | */ | |
456 | extern struct rw_semaphore afs_proc_cells_sem; | |
457 | extern struct list_head afs_proc_cells; | |
1da177e4 | 458 | |
08e0e7c8 DH |
459 | #define afs_get_cell(C) do { atomic_inc(&(C)->usage); } while(0) |
460 | extern int afs_cell_init(char *); | |
bec5eb61 | 461 | extern struct afs_cell *afs_cell_create(const char *, unsigned, char *, bool); |
462 | extern struct afs_cell *afs_cell_lookup(const char *, unsigned, bool); | |
08e0e7c8 DH |
463 | extern struct afs_cell *afs_grab_cell(struct afs_cell *); |
464 | extern void afs_put_cell(struct afs_cell *); | |
465 | extern void afs_cell_purge(void); | |
466 | ||
467 | /* | |
468 | * cmservice.c | |
469 | */ | |
470 | extern bool afs_cm_incoming_call(struct afs_call *); | |
471 | ||
1da177e4 LT |
472 | /* |
473 | * dir.c | |
474 | */ | |
754661f1 | 475 | extern const struct inode_operations afs_dir_inode_operations; |
d61dcce2 | 476 | extern const struct dentry_operations afs_fs_dentry_operations; |
4b6f5d20 | 477 | extern const struct file_operations afs_dir_file_operations; |
1da177e4 LT |
478 | |
479 | /* | |
480 | * file.c | |
481 | */ | |
f5e54d6e | 482 | extern const struct address_space_operations afs_fs_aops; |
754661f1 | 483 | extern const struct inode_operations afs_file_inode_operations; |
00d3b7a4 DH |
484 | extern const struct file_operations afs_file_operations; |
485 | ||
486 | extern int afs_open(struct inode *, struct file *); | |
487 | extern int afs_release(struct inode *, struct file *); | |
cf1e629f | 488 | extern int afs_page_filler(struct file *, struct page *); |
196ee9cd | 489 | extern void afs_put_read(struct afs_read *); |
1da177e4 | 490 | |
e8d6c554 DH |
491 | /* |
492 | * flock.c | |
493 | */ | |
494 | extern void __exit afs_kill_lock_manager(void); | |
495 | extern void afs_lock_work(struct work_struct *); | |
496 | extern void afs_lock_may_be_available(struct afs_vnode *); | |
497 | extern int afs_lock(struct file *, int, struct file_lock *); | |
498 | extern int afs_flock(struct file *, int, struct file_lock *); | |
499 | ||
08e0e7c8 DH |
500 | /* |
501 | * fsclient.c | |
502 | */ | |
00d3b7a4 DH |
503 | extern int afs_fs_fetch_file_status(struct afs_server *, struct key *, |
504 | struct afs_vnode *, struct afs_volsync *, | |
56ff9c83 DH |
505 | bool); |
506 | extern int afs_fs_give_up_callbacks(struct afs_server *, bool); | |
00d3b7a4 | 507 | extern int afs_fs_fetch_data(struct afs_server *, struct key *, |
56ff9c83 | 508 | struct afs_vnode *, struct afs_read *, bool); |
260a9803 DH |
509 | extern int afs_fs_create(struct afs_server *, struct key *, |
510 | struct afs_vnode *, const char *, umode_t, | |
511 | struct afs_fid *, struct afs_file_status *, | |
56ff9c83 | 512 | struct afs_callback *, bool); |
260a9803 | 513 | extern int afs_fs_remove(struct afs_server *, struct key *, |
56ff9c83 | 514 | struct afs_vnode *, const char *, bool, bool); |
260a9803 | 515 | extern int afs_fs_link(struct afs_server *, struct key *, struct afs_vnode *, |
56ff9c83 | 516 | struct afs_vnode *, const char *, bool); |
260a9803 DH |
517 | extern int afs_fs_symlink(struct afs_server *, struct key *, |
518 | struct afs_vnode *, const char *, const char *, | |
56ff9c83 | 519 | struct afs_fid *, struct afs_file_status *, bool); |
260a9803 DH |
520 | extern int afs_fs_rename(struct afs_server *, struct key *, |
521 | struct afs_vnode *, const char *, | |
56ff9c83 | 522 | struct afs_vnode *, const char *, bool); |
31143d5d | 523 | extern int afs_fs_store_data(struct afs_server *, struct afs_writeback *, |
56ff9c83 | 524 | pgoff_t, pgoff_t, unsigned, unsigned, bool); |
31143d5d | 525 | extern int afs_fs_setattr(struct afs_server *, struct key *, |
56ff9c83 | 526 | struct afs_vnode *, struct iattr *, bool); |
45222b9e DH |
527 | extern int afs_fs_get_volume_status(struct afs_server *, struct key *, |
528 | struct afs_vnode *, | |
56ff9c83 | 529 | struct afs_volume_status *, bool); |
e8d6c554 | 530 | extern int afs_fs_set_lock(struct afs_server *, struct key *, |
56ff9c83 | 531 | struct afs_vnode *, afs_lock_type_t, bool); |
e8d6c554 | 532 | extern int afs_fs_extend_lock(struct afs_server *, struct key *, |
56ff9c83 | 533 | struct afs_vnode *, bool); |
e8d6c554 | 534 | extern int afs_fs_release_lock(struct afs_server *, struct key *, |
56ff9c83 | 535 | struct afs_vnode *, bool); |
08e0e7c8 | 536 | |
1da177e4 LT |
537 | /* |
538 | * inode.c | |
539 | */ | |
bec5eb61 | 540 | extern struct inode *afs_iget_autocell(struct inode *, const char *, int, |
541 | struct key *); | |
00d3b7a4 | 542 | extern struct inode *afs_iget(struct super_block *, struct key *, |
260a9803 DH |
543 | struct afs_fid *, struct afs_file_status *, |
544 | struct afs_callback *); | |
416351f2 | 545 | extern void afs_zap_data(struct afs_vnode *); |
260a9803 | 546 | extern int afs_validate(struct afs_vnode *, struct key *); |
a528d35e | 547 | extern int afs_getattr(const struct path *, struct kstat *, u32, unsigned int); |
31143d5d | 548 | extern int afs_setattr(struct dentry *, struct iattr *); |
b57922d9 | 549 | extern void afs_evict_inode(struct inode *); |
bec5eb61 | 550 | extern int afs_drop_inode(struct inode *); |
1da177e4 LT |
551 | |
552 | /* | |
553 | * main.c | |
554 | */ | |
0ad53eee | 555 | extern struct workqueue_struct *afs_wq; |
41bb26f8 | 556 | extern struct afs_uuid afs_uuid; |
1da177e4 | 557 | |
08e0e7c8 DH |
558 | /* |
559 | * misc.c | |
560 | */ | |
561 | extern int afs_abort_to_error(u32); | |
562 | ||
1da177e4 LT |
563 | /* |
564 | * mntpt.c | |
565 | */ | |
754661f1 | 566 | extern const struct inode_operations afs_mntpt_inode_operations; |
bec5eb61 | 567 | extern const struct inode_operations afs_autocell_inode_operations; |
4b6f5d20 | 568 | extern const struct file_operations afs_mntpt_file_operations; |
1da177e4 | 569 | |
d18610b0 | 570 | extern struct vfsmount *afs_d_automount(struct path *); |
08e0e7c8 | 571 | extern void afs_mntpt_kill_timer(void); |
1da177e4 | 572 | |
b4db2b35 AB |
573 | /* |
574 | * netdevices.c | |
575 | */ | |
576 | extern int afs_get_ipv4_interfaces(struct afs_interface *, size_t, bool); | |
577 | ||
1da177e4 LT |
578 | /* |
579 | * proc.c | |
580 | */ | |
581 | extern int afs_proc_init(void); | |
582 | extern void afs_proc_cleanup(void); | |
ec26815a DH |
583 | extern int afs_proc_cell_setup(struct afs_cell *); |
584 | extern void afs_proc_cell_remove(struct afs_cell *); | |
1da177e4 | 585 | |
08e0e7c8 DH |
586 | /* |
587 | * rxrpc.c | |
588 | */ | |
8324f0bc | 589 | extern struct socket *afs_socket; |
341f741f | 590 | extern atomic_t afs_outstanding_calls; |
8324f0bc | 591 | |
08e0e7c8 DH |
592 | extern int afs_open_socket(void); |
593 | extern void afs_close_socket(void); | |
341f741f DH |
594 | extern void afs_put_call(struct afs_call *); |
595 | extern int afs_queue_call_work(struct afs_call *); | |
56ff9c83 | 596 | extern int afs_make_call(struct in_addr *, struct afs_call *, gfp_t, bool); |
08e0e7c8 DH |
597 | extern struct afs_call *afs_alloc_flat_call(const struct afs_call_type *, |
598 | size_t, size_t); | |
599 | extern void afs_flat_call_destructor(struct afs_call *); | |
08e0e7c8 | 600 | extern void afs_send_empty_reply(struct afs_call *); |
b908fe6b | 601 | extern void afs_send_simple_reply(struct afs_call *, const void *, size_t); |
d001648e | 602 | extern int afs_extract_data(struct afs_call *, void *, size_t, bool); |
08e0e7c8 | 603 | |
d001648e | 604 | static inline int afs_transfer_reply(struct afs_call *call) |
372ee163 | 605 | { |
d001648e | 606 | return afs_extract_data(call, call->buffer, call->reply_max, false); |
372ee163 DH |
607 | } |
608 | ||
00d3b7a4 DH |
609 | /* |
610 | * security.c | |
611 | */ | |
612 | extern void afs_clear_permits(struct afs_vnode *); | |
613 | extern void afs_cache_permit(struct afs_vnode *, struct key *, long); | |
416351f2 | 614 | extern void afs_zap_permits(struct rcu_head *); |
00d3b7a4 | 615 | extern struct key *afs_request_key(struct afs_cell *); |
10556cb2 | 616 | extern int afs_permission(struct inode *, int); |
00d3b7a4 | 617 | |
08e0e7c8 DH |
618 | /* |
619 | * server.c | |
620 | */ | |
621 | extern spinlock_t afs_server_peer_lock; | |
622 | ||
260a9803 DH |
623 | #define afs_get_server(S) \ |
624 | do { \ | |
625 | _debug("GET SERVER %d", atomic_read(&(S)->usage)); \ | |
626 | atomic_inc(&(S)->usage); \ | |
627 | } while(0) | |
08e0e7c8 DH |
628 | |
629 | extern struct afs_server *afs_lookup_server(struct afs_cell *, | |
630 | const struct in_addr *); | |
8324f0bc | 631 | extern struct afs_server *afs_find_server(const struct sockaddr_rxrpc *); |
08e0e7c8 DH |
632 | extern void afs_put_server(struct afs_server *); |
633 | extern void __exit afs_purge_servers(void); | |
634 | ||
00d3b7a4 DH |
635 | /* |
636 | * super.c | |
637 | */ | |
638 | extern int afs_fs_init(void); | |
639 | extern void afs_fs_exit(void); | |
640 | ||
08e0e7c8 DH |
641 | /* |
642 | * vlclient.c | |
643 | */ | |
00d3b7a4 DH |
644 | extern int afs_vl_get_entry_by_name(struct in_addr *, struct key *, |
645 | const char *, struct afs_cache_vlocation *, | |
56ff9c83 | 646 | bool); |
00d3b7a4 DH |
647 | extern int afs_vl_get_entry_by_id(struct in_addr *, struct key *, |
648 | afs_volid_t, afs_voltype_t, | |
56ff9c83 | 649 | struct afs_cache_vlocation *, bool); |
08e0e7c8 DH |
650 | |
651 | /* | |
652 | * vlocation.c | |
653 | */ | |
654 | #define afs_get_vlocation(V) do { atomic_inc(&(V)->usage); } while(0) | |
655 | ||
656 | extern int __init afs_vlocation_update_init(void); | |
657 | extern struct afs_vlocation *afs_vlocation_lookup(struct afs_cell *, | |
00d3b7a4 | 658 | struct key *, |
08e0e7c8 DH |
659 | const char *, size_t); |
660 | extern void afs_put_vlocation(struct afs_vlocation *); | |
fbb3fcba | 661 | extern void afs_vlocation_purge(void); |
08e0e7c8 DH |
662 | |
663 | /* | |
664 | * vnode.c | |
665 | */ | |
08e0e7c8 DH |
666 | static inline struct afs_vnode *AFS_FS_I(struct inode *inode) |
667 | { | |
668 | return container_of(inode, struct afs_vnode, vfs_inode); | |
669 | } | |
670 | ||
671 | static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode) | |
672 | { | |
673 | return &vnode->vfs_inode; | |
674 | } | |
675 | ||
260a9803 DH |
676 | extern void afs_vnode_finalise_status_update(struct afs_vnode *, |
677 | struct afs_server *); | |
00d3b7a4 DH |
678 | extern int afs_vnode_fetch_status(struct afs_vnode *, struct afs_vnode *, |
679 | struct key *); | |
680 | extern int afs_vnode_fetch_data(struct afs_vnode *, struct key *, | |
196ee9cd | 681 | struct afs_read *); |
260a9803 DH |
682 | extern int afs_vnode_create(struct afs_vnode *, struct key *, const char *, |
683 | umode_t, struct afs_fid *, struct afs_file_status *, | |
684 | struct afs_callback *, struct afs_server **); | |
685 | extern int afs_vnode_remove(struct afs_vnode *, struct key *, const char *, | |
686 | bool); | |
687 | extern int afs_vnode_link(struct afs_vnode *, struct afs_vnode *, struct key *, | |
688 | const char *); | |
689 | extern int afs_vnode_symlink(struct afs_vnode *, struct key *, const char *, | |
690 | const char *, struct afs_fid *, | |
691 | struct afs_file_status *, struct afs_server **); | |
692 | extern int afs_vnode_rename(struct afs_vnode *, struct afs_vnode *, | |
693 | struct key *, const char *, const char *); | |
31143d5d DH |
694 | extern int afs_vnode_store_data(struct afs_writeback *, pgoff_t, pgoff_t, |
695 | unsigned, unsigned); | |
696 | extern int afs_vnode_setattr(struct afs_vnode *, struct key *, struct iattr *); | |
45222b9e DH |
697 | extern int afs_vnode_get_volume_status(struct afs_vnode *, struct key *, |
698 | struct afs_volume_status *); | |
e8d6c554 DH |
699 | extern int afs_vnode_set_lock(struct afs_vnode *, struct key *, |
700 | afs_lock_type_t); | |
701 | extern int afs_vnode_extend_lock(struct afs_vnode *, struct key *); | |
702 | extern int afs_vnode_release_lock(struct afs_vnode *, struct key *); | |
08e0e7c8 DH |
703 | |
704 | /* | |
705 | * volume.c | |
706 | */ | |
08e0e7c8 DH |
707 | #define afs_get_volume(V) do { atomic_inc(&(V)->usage); } while(0) |
708 | ||
709 | extern void afs_put_volume(struct afs_volume *); | |
00d3b7a4 | 710 | extern struct afs_volume *afs_volume_lookup(struct afs_mount_params *); |
08e0e7c8 DH |
711 | extern struct afs_server *afs_volume_pick_fileserver(struct afs_vnode *); |
712 | extern int afs_volume_release_fileserver(struct afs_vnode *, | |
713 | struct afs_server *, int); | |
714 | ||
31143d5d DH |
715 | /* |
716 | * write.c | |
717 | */ | |
718 | extern int afs_set_page_dirty(struct page *); | |
719 | extern void afs_put_writeback(struct afs_writeback *); | |
15b4650e NP |
720 | extern int afs_write_begin(struct file *file, struct address_space *mapping, |
721 | loff_t pos, unsigned len, unsigned flags, | |
722 | struct page **pagep, void **fsdata); | |
723 | extern int afs_write_end(struct file *file, struct address_space *mapping, | |
724 | loff_t pos, unsigned len, unsigned copied, | |
725 | struct page *page, void *fsdata); | |
31143d5d DH |
726 | extern int afs_writepage(struct page *, struct writeback_control *); |
727 | extern int afs_writepages(struct address_space *, struct writeback_control *); | |
31143d5d | 728 | extern void afs_pages_written_back(struct afs_vnode *, struct afs_call *); |
50b5551d | 729 | extern ssize_t afs_file_write(struct kiocb *, struct iov_iter *); |
31143d5d | 730 | extern int afs_writeback_all(struct afs_vnode *); |
58fed94d | 731 | extern int afs_flush(struct file *, fl_owner_t); |
02c24a82 | 732 | extern int afs_fsync(struct file *, loff_t, loff_t, int); |
31143d5d | 733 | |
d3e3b7ea DH |
734 | /* |
735 | * xattr.c | |
736 | */ | |
737 | extern const struct xattr_handler *afs_xattr_handlers[]; | |
738 | extern ssize_t afs_listxattr(struct dentry *, char *, size_t); | |
31143d5d | 739 | |
08e0e7c8 DH |
740 | /*****************************************************************************/ |
741 | /* | |
742 | * debug tracing | |
743 | */ | |
8e8d7f13 DH |
744 | #include <trace/events/afs.h> |
745 | ||
08e0e7c8 DH |
746 | extern unsigned afs_debug; |
747 | ||
748 | #define dbgprintk(FMT,...) \ | |
ad16df84 | 749 | printk("[%-6.6s] "FMT"\n", current->comm ,##__VA_ARGS__) |
08e0e7c8 | 750 | |
530b6412 HH |
751 | #define kenter(FMT,...) dbgprintk("==> %s("FMT")",__func__ ,##__VA_ARGS__) |
752 | #define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) | |
08e0e7c8 DH |
753 | #define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__) |
754 | ||
755 | ||
756 | #if defined(__KDEBUG) | |
757 | #define _enter(FMT,...) kenter(FMT,##__VA_ARGS__) | |
758 | #define _leave(FMT,...) kleave(FMT,##__VA_ARGS__) | |
759 | #define _debug(FMT,...) kdebug(FMT,##__VA_ARGS__) | |
760 | ||
761 | #elif defined(CONFIG_AFS_DEBUG) | |
762 | #define AFS_DEBUG_KENTER 0x01 | |
763 | #define AFS_DEBUG_KLEAVE 0x02 | |
764 | #define AFS_DEBUG_KDEBUG 0x04 | |
765 | ||
766 | #define _enter(FMT,...) \ | |
767 | do { \ | |
768 | if (unlikely(afs_debug & AFS_DEBUG_KENTER)) \ | |
769 | kenter(FMT,##__VA_ARGS__); \ | |
770 | } while (0) | |
771 | ||
772 | #define _leave(FMT,...) \ | |
773 | do { \ | |
774 | if (unlikely(afs_debug & AFS_DEBUG_KLEAVE)) \ | |
775 | kleave(FMT,##__VA_ARGS__); \ | |
776 | } while (0) | |
777 | ||
778 | #define _debug(FMT,...) \ | |
779 | do { \ | |
780 | if (unlikely(afs_debug & AFS_DEBUG_KDEBUG)) \ | |
781 | kdebug(FMT,##__VA_ARGS__); \ | |
782 | } while (0) | |
783 | ||
784 | #else | |
12fdff3f DH |
785 | #define _enter(FMT,...) no_printk("==> %s("FMT")",__func__ ,##__VA_ARGS__) |
786 | #define _leave(FMT,...) no_printk("<== %s()"FMT"",__func__ ,##__VA_ARGS__) | |
787 | #define _debug(FMT,...) no_printk(" "FMT ,##__VA_ARGS__) | |
08e0e7c8 DH |
788 | #endif |
789 | ||
790 | /* | |
791 | * debug assertion checking | |
792 | */ | |
793 | #if 1 // defined(__KDEBUGALL) | |
794 | ||
795 | #define ASSERT(X) \ | |
796 | do { \ | |
797 | if (unlikely(!(X))) { \ | |
798 | printk(KERN_ERR "\n"); \ | |
799 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | |
800 | BUG(); \ | |
801 | } \ | |
802 | } while(0) | |
803 | ||
804 | #define ASSERTCMP(X, OP, Y) \ | |
805 | do { \ | |
806 | if (unlikely(!((X) OP (Y)))) { \ | |
807 | printk(KERN_ERR "\n"); \ | |
808 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | |
809 | printk(KERN_ERR "%lu " #OP " %lu is false\n", \ | |
810 | (unsigned long)(X), (unsigned long)(Y)); \ | |
811 | printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \ | |
812 | (unsigned long)(X), (unsigned long)(Y)); \ | |
813 | BUG(); \ | |
814 | } \ | |
815 | } while(0) | |
816 | ||
416351f2 DH |
817 | #define ASSERTRANGE(L, OP1, N, OP2, H) \ |
818 | do { \ | |
819 | if (unlikely(!((L) OP1 (N)) || !((N) OP2 (H)))) { \ | |
820 | printk(KERN_ERR "\n"); \ | |
821 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | |
822 | printk(KERN_ERR "%lu "#OP1" %lu "#OP2" %lu is false\n", \ | |
823 | (unsigned long)(L), (unsigned long)(N), \ | |
824 | (unsigned long)(H)); \ | |
825 | printk(KERN_ERR "0x%lx "#OP1" 0x%lx "#OP2" 0x%lx is false\n", \ | |
826 | (unsigned long)(L), (unsigned long)(N), \ | |
827 | (unsigned long)(H)); \ | |
828 | BUG(); \ | |
829 | } \ | |
830 | } while(0) | |
831 | ||
08e0e7c8 DH |
832 | #define ASSERTIF(C, X) \ |
833 | do { \ | |
834 | if (unlikely((C) && !(X))) { \ | |
835 | printk(KERN_ERR "\n"); \ | |
836 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | |
837 | BUG(); \ | |
838 | } \ | |
839 | } while(0) | |
840 | ||
841 | #define ASSERTIFCMP(C, X, OP, Y) \ | |
842 | do { \ | |
843 | if (unlikely((C) && !((X) OP (Y)))) { \ | |
844 | printk(KERN_ERR "\n"); \ | |
845 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | |
846 | printk(KERN_ERR "%lu " #OP " %lu is false\n", \ | |
847 | (unsigned long)(X), (unsigned long)(Y)); \ | |
848 | printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \ | |
849 | (unsigned long)(X), (unsigned long)(Y)); \ | |
850 | BUG(); \ | |
851 | } \ | |
852 | } while(0) | |
853 | ||
854 | #else | |
855 | ||
856 | #define ASSERT(X) \ | |
857 | do { \ | |
858 | } while(0) | |
859 | ||
860 | #define ASSERTCMP(X, OP, Y) \ | |
861 | do { \ | |
862 | } while(0) | |
863 | ||
416351f2 DH |
864 | #define ASSERTRANGE(L, OP1, N, OP2, H) \ |
865 | do { \ | |
866 | } while(0) | |
867 | ||
08e0e7c8 DH |
868 | #define ASSERTIF(C, X) \ |
869 | do { \ | |
870 | } while(0) | |
871 | ||
872 | #define ASSERTIFCMP(C, X, OP, Y) \ | |
873 | do { \ | |
874 | } while(0) | |
875 | ||
876 | #endif /* __KDEBUGALL */ |