diff options
author | David Howells <dhowells@redhat.com> | 2007-04-26 18:55:03 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2007-04-26 18:55:03 -0400 |
commit | 08e0e7c82eeadec6f4871a386b86bf0f0fbcb4eb (patch) | |
tree | 1c4f7e91e20e56ff2ec755e988a6ee828b1a21c0 /fs/afs/internal.h | |
parent | 651350d10f93bed7003c9a66e24cf25e0f8eed3d (diff) |
[AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC.
Make the in-kernel AFS filesystem use AF_RXRPC instead of the old RxRPC code.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/afs/internal.h')
-rw-r--r-- | fs/afs/internal.h | 599 |
1 files changed, 553 insertions, 46 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index b6dd20a93cce..afc6f0f30259 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h | |||
@@ -1,6 +1,6 @@ | |||
1 | /* internal AFS stuff | 1 | /* internal AFS stuff |
2 | * | 2 | * |
3 | * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. | 3 | * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
4 | * Written by David Howells (dhowells@redhat.com) | 4 | * Written by David Howells (dhowells@redhat.com) |
5 | * | 5 | * |
6 | * This program is free software; you can redistribute it and/or | 6 | * This program is free software; you can redistribute it and/or |
@@ -9,48 +9,321 @@ | |||
9 | * 2 of the License, or (at your option) any later version. | 9 | * 2 of the License, or (at your option) any later version. |
10 | */ | 10 | */ |
11 | 11 | ||
12 | #ifndef AFS_INTERNAL_H | ||
13 | #define AFS_INTERNAL_H | ||
14 | |||
15 | #include <linux/compiler.h> | 12 | #include <linux/compiler.h> |
16 | #include <linux/kernel.h> | 13 | #include <linux/kernel.h> |
17 | #include <linux/fs.h> | 14 | #include <linux/fs.h> |
18 | #include <linux/pagemap.h> | 15 | #include <linux/pagemap.h> |
16 | #include <linux/skbuff.h> | ||
17 | #include <linux/rxrpc.h> | ||
18 | #include "afs.h" | ||
19 | #include "afs_vl.h" | ||
20 | |||
21 | #define AFS_CELL_MAX_ADDRS 15 | ||
22 | |||
23 | struct afs_call; | ||
24 | |||
25 | typedef enum { | ||
26 | AFS_VL_NEW, /* new, uninitialised record */ | ||
27 | AFS_VL_CREATING, /* creating record */ | ||
28 | AFS_VL_VALID, /* record is pending */ | ||
29 | AFS_VL_NO_VOLUME, /* no such volume available */ | ||
30 | AFS_VL_UPDATING, /* update in progress */ | ||
31 | AFS_VL_VOLUME_DELETED, /* volume was deleted */ | ||
32 | AFS_VL_UNCERTAIN, /* uncertain state (update failed) */ | ||
33 | } __attribute__((packed)) afs_vlocation_state_t; | ||
19 | 34 | ||
20 | /* | 35 | /* |
21 | * debug tracing | 36 | * definition of how to wait for the completion of an operation |
22 | */ | 37 | */ |
23 | #define kenter(FMT, a...) printk("==> %s("FMT")\n",__FUNCTION__ , ## a) | 38 | struct afs_wait_mode { |
24 | #define kleave(FMT, a...) printk("<== %s()"FMT"\n",__FUNCTION__ , ## a) | 39 | /* RxRPC received message notification */ |
25 | #define kdebug(FMT, a...) printk(FMT"\n" , ## a) | 40 | void (*rx_wakeup)(struct afs_call *call); |
26 | #define kproto(FMT, a...) printk("### "FMT"\n" , ## a) | ||
27 | #define knet(FMT, a...) printk(FMT"\n" , ## a) | ||
28 | |||
29 | #ifdef __KDEBUG | ||
30 | #define _enter(FMT, a...) kenter(FMT , ## a) | ||
31 | #define _leave(FMT, a...) kleave(FMT , ## a) | ||
32 | #define _debug(FMT, a...) kdebug(FMT , ## a) | ||
33 | #define _proto(FMT, a...) kproto(FMT , ## a) | ||
34 | #define _net(FMT, a...) knet(FMT , ## a) | ||
35 | #else | ||
36 | #define _enter(FMT, a...) do { } while(0) | ||
37 | #define _leave(FMT, a...) do { } while(0) | ||
38 | #define _debug(FMT, a...) do { } while(0) | ||
39 | #define _proto(FMT, a...) do { } while(0) | ||
40 | #define _net(FMT, a...) do { } while(0) | ||
41 | #endif | ||
42 | 41 | ||
43 | static inline void afs_discard_my_signals(void) | 42 | /* synchronous call waiter and call dispatched notification */ |
44 | { | 43 | int (*wait)(struct afs_call *call); |
45 | while (signal_pending(current)) { | 44 | |
46 | siginfo_t sinfo; | 45 | /* asynchronous call completion */ |
46 | void (*async_complete)(void *reply, int error); | ||
47 | }; | ||
48 | |||
49 | extern const struct afs_wait_mode afs_sync_call; | ||
50 | extern const struct afs_wait_mode afs_async_call; | ||
51 | |||
52 | /* | ||
53 | * a record of an in-progress RxRPC call | ||
54 | */ | ||
55 | struct afs_call { | ||
56 | const struct afs_call_type *type; /* type of call */ | ||
57 | const struct afs_wait_mode *wait_mode; /* completion wait mode */ | ||
58 | wait_queue_head_t waitq; /* processes awaiting completion */ | ||
59 | struct work_struct async_work; /* asynchronous work processor */ | ||
60 | struct work_struct work; /* actual work processor */ | ||
61 | struct sk_buff_head rx_queue; /* received packets */ | ||
62 | struct rxrpc_call *rxcall; /* RxRPC call handle */ | ||
63 | struct key *key; /* security for this call */ | ||
64 | struct afs_server *server; /* server affected by incoming CM call */ | ||
65 | void *request; /* request data (first part) */ | ||
66 | void *request2; /* request data (second part) */ | ||
67 | void *buffer; /* reply receive buffer */ | ||
68 | void *reply; /* reply buffer (first part) */ | ||
69 | void *reply2; /* reply buffer (second part) */ | ||
70 | void *reply3; /* reply buffer (third part) */ | ||
71 | enum { /* call state */ | ||
72 | AFS_CALL_REQUESTING, /* request is being sent for outgoing call */ | ||
73 | AFS_CALL_AWAIT_REPLY, /* awaiting reply to outgoing call */ | ||
74 | AFS_CALL_AWAIT_OP_ID, /* awaiting op ID on incoming call */ | ||
75 | AFS_CALL_AWAIT_REQUEST, /* awaiting request data on incoming call */ | ||
76 | AFS_CALL_REPLYING, /* replying to incoming call */ | ||
77 | AFS_CALL_AWAIT_ACK, /* awaiting final ACK of incoming call */ | ||
78 | AFS_CALL_COMPLETE, /* successfully completed */ | ||
79 | AFS_CALL_BUSY, /* server was busy */ | ||
80 | AFS_CALL_ABORTED, /* call was aborted */ | ||
81 | AFS_CALL_ERROR, /* call failed due to error */ | ||
82 | } state; | ||
83 | int error; /* error code */ | ||
84 | unsigned request_size; /* size of request data */ | ||
85 | unsigned reply_max; /* maximum size of reply */ | ||
86 | unsigned reply_size; /* current size of reply */ | ||
87 | unsigned short offset; /* offset into received data store */ | ||
88 | unsigned char unmarshall; /* unmarshalling phase */ | ||
89 | bool incoming; /* T if incoming call */ | ||
90 | u16 service_id; /* RxRPC service ID to call */ | ||
91 | __be16 port; /* target UDP port */ | ||
92 | __be32 operation_ID; /* operation ID for an incoming call */ | ||
93 | u32 count; /* count for use in unmarshalling */ | ||
94 | __be32 tmp; /* place to extract temporary data */ | ||
95 | }; | ||
96 | |||
97 | struct afs_call_type { | ||
98 | /* deliver request or reply data to an call | ||
99 | * - returning an error will cause the call to be aborted | ||
100 | */ | ||
101 | int (*deliver)(struct afs_call *call, struct sk_buff *skb, | ||
102 | bool last); | ||
103 | |||
104 | /* map an abort code to an error number */ | ||
105 | int (*abort_to_error)(u32 abort_code); | ||
106 | |||
107 | /* clean up a call */ | ||
108 | void (*destructor)(struct afs_call *call); | ||
109 | }; | ||
110 | |||
111 | /* | ||
112 | * AFS superblock private data | ||
113 | * - there's one superblock per volume | ||
114 | */ | ||
115 | struct afs_super_info { | ||
116 | struct afs_volume *volume; /* volume record */ | ||
117 | char rwparent; /* T if parent is R/W AFS volume */ | ||
118 | }; | ||
47 | 119 | ||
48 | spin_lock_irq(¤t->sighand->siglock); | 120 | static inline struct afs_super_info *AFS_FS_S(struct super_block *sb) |
49 | dequeue_signal(current,¤t->blocked, &sinfo); | 121 | { |
50 | spin_unlock_irq(¤t->sighand->siglock); | 122 | return sb->s_fs_info; |
51 | } | ||
52 | } | 123 | } |
53 | 124 | ||
125 | extern struct file_system_type afs_fs_type; | ||
126 | |||
127 | /* | ||
128 | * entry in the cached cell catalogue | ||
129 | */ | ||
130 | struct afs_cache_cell { | ||
131 | char name[64]; /* cell name (padded with NULs) */ | ||
132 | struct in_addr vl_servers[15]; /* cached cell VL servers */ | ||
133 | }; | ||
134 | |||
135 | /* | ||
136 | * AFS cell record | ||
137 | */ | ||
138 | struct afs_cell { | ||
139 | atomic_t usage; | ||
140 | struct list_head link; /* main cell list link */ | ||
141 | struct list_head proc_link; /* /proc cell list link */ | ||
142 | struct proc_dir_entry *proc_dir; /* /proc dir for this cell */ | ||
143 | #ifdef AFS_CACHING_SUPPORT | ||
144 | struct cachefs_cookie *cache; /* caching cookie */ | ||
145 | #endif | ||
146 | |||
147 | /* server record management */ | ||
148 | rwlock_t servers_lock; /* active server list lock */ | ||
149 | struct list_head servers; /* active server list */ | ||
150 | |||
151 | /* volume location record management */ | ||
152 | struct rw_semaphore vl_sem; /* volume management serialisation semaphore */ | ||
153 | struct list_head vl_list; /* cell's active VL record list */ | ||
154 | spinlock_t vl_lock; /* vl_list lock */ | ||
155 | unsigned short vl_naddrs; /* number of VL servers in addr list */ | ||
156 | unsigned short vl_curr_svix; /* current server index */ | ||
157 | struct in_addr vl_addrs[AFS_CELL_MAX_ADDRS]; /* cell VL server addresses */ | ||
158 | |||
159 | char name[0]; /* cell name - must go last */ | ||
160 | }; | ||
161 | |||
162 | /* | ||
163 | * entry in the cached volume location catalogue | ||
164 | */ | ||
165 | struct afs_cache_vlocation { | ||
166 | uint8_t name[64 + 1]; /* volume name (lowercase, padded with NULs) */ | ||
167 | uint8_t nservers; /* number of entries used in servers[] */ | ||
168 | uint8_t vidmask; /* voltype mask for vid[] */ | ||
169 | uint8_t srvtmask[8]; /* voltype masks for servers[] */ | ||
170 | #define AFS_VOL_VTM_RW 0x01 /* R/W version of the volume is available (on this server) */ | ||
171 | #define AFS_VOL_VTM_RO 0x02 /* R/O version of the volume is available (on this server) */ | ||
172 | #define AFS_VOL_VTM_BAK 0x04 /* backup version of the volume is available (on this server) */ | ||
173 | |||
174 | afs_volid_t vid[3]; /* volume IDs for R/W, R/O and Bak volumes */ | ||
175 | struct in_addr servers[8]; /* fileserver addresses */ | ||
176 | time_t rtime; /* last retrieval time */ | ||
177 | }; | ||
178 | |||
179 | /* | ||
180 | * volume -> vnode hash table entry | ||
181 | */ | ||
182 | struct afs_cache_vhash { | ||
183 | afs_voltype_t vtype; /* which volume variation */ | ||
184 | uint8_t hash_bucket; /* which hash bucket this represents */ | ||
185 | } __attribute__((packed)); | ||
186 | |||
187 | /* | ||
188 | * AFS volume location record | ||
189 | */ | ||
190 | struct afs_vlocation { | ||
191 | atomic_t usage; | ||
192 | time_t time_of_death; /* time at which put reduced usage to 0 */ | ||
193 | struct list_head link; /* link in cell volume location list */ | ||
194 | struct list_head grave; /* link in master graveyard list */ | ||
195 | struct list_head update; /* link in master update list */ | ||
196 | struct afs_cell *cell; /* cell to which volume belongs */ | ||
197 | #ifdef AFS_CACHING_SUPPORT | ||
198 | struct cachefs_cookie *cache; /* caching cookie */ | ||
199 | #endif | ||
200 | struct afs_cache_vlocation vldb; /* volume information DB record */ | ||
201 | struct afs_volume *vols[3]; /* volume access record pointer (index by type) */ | ||
202 | wait_queue_head_t waitq; /* status change waitqueue */ | ||
203 | time_t update_at; /* time at which record should be updated */ | ||
204 | rwlock_t lock; /* access lock */ | ||
205 | afs_vlocation_state_t state; /* volume location state */ | ||
206 | unsigned short upd_rej_cnt; /* ENOMEDIUM count during update */ | ||
207 | unsigned short upd_busy_cnt; /* EBUSY count during update */ | ||
208 | bool valid; /* T if valid */ | ||
209 | }; | ||
210 | |||
211 | /* | ||
212 | * AFS fileserver record | ||
213 | */ | ||
214 | struct afs_server { | ||
215 | atomic_t usage; | ||
216 | time_t time_of_death; /* time at which put reduced usage to 0 */ | ||
217 | struct in_addr addr; /* server address */ | ||
218 | struct afs_cell *cell; /* cell in which server resides */ | ||
219 | struct list_head link; /* link in cell's server list */ | ||
220 | struct list_head grave; /* link in master graveyard list */ | ||
221 | struct rb_node master_rb; /* link in master by-addr tree */ | ||
222 | struct rw_semaphore sem; /* access lock */ | ||
223 | |||
224 | /* file service access */ | ||
225 | struct rb_root fs_vnodes; /* vnodes backed by this server (ordered by FID) */ | ||
226 | unsigned long fs_act_jif; /* time at which last activity occurred */ | ||
227 | unsigned long fs_dead_jif; /* time at which no longer to be considered dead */ | ||
228 | spinlock_t fs_lock; /* access lock */ | ||
229 | int fs_state; /* 0 or reason FS currently marked dead (-errno) */ | ||
230 | |||
231 | /* callback promise management */ | ||
232 | struct rb_root cb_promises; /* vnode expiration list (ordered earliest first) */ | ||
233 | struct delayed_work cb_updater; /* callback updater */ | ||
234 | struct delayed_work cb_break_work; /* collected break dispatcher */ | ||
235 | wait_queue_head_t cb_break_waitq; /* space available in cb_break waitqueue */ | ||
236 | spinlock_t cb_lock; /* access lock */ | ||
237 | struct afs_callback cb_break[64]; /* ring of callbacks awaiting breaking */ | ||
238 | atomic_t cb_break_n; /* number of pending breaks */ | ||
239 | u8 cb_break_head; /* head of callback breaking ring */ | ||
240 | u8 cb_break_tail; /* tail of callback breaking ring */ | ||
241 | }; | ||
242 | |||
243 | /* | ||
244 | * AFS volume access record | ||
245 | */ | ||
246 | struct afs_volume { | ||
247 | atomic_t usage; | ||
248 | struct afs_cell *cell; /* cell to which belongs (unrefd ptr) */ | ||
249 | struct afs_vlocation *vlocation; /* volume location */ | ||
250 | #ifdef AFS_CACHING_SUPPORT | ||
251 | struct cachefs_cookie *cache; /* caching cookie */ | ||
252 | #endif | ||
253 | afs_volid_t vid; /* volume ID */ | ||
254 | afs_voltype_t type; /* type of volume */ | ||
255 | char type_force; /* force volume type (suppress R/O -> R/W) */ | ||
256 | unsigned short nservers; /* number of server slots filled */ | ||
257 | unsigned short rjservers; /* number of servers discarded due to -ENOMEDIUM */ | ||
258 | struct afs_server *servers[8]; /* servers on which volume resides (ordered) */ | ||
259 | struct rw_semaphore server_sem; /* lock for accessing current server */ | ||
260 | }; | ||
261 | |||
262 | /* | ||
263 | * vnode catalogue entry | ||
264 | */ | ||
265 | struct afs_cache_vnode { | ||
266 | afs_vnodeid_t vnode_id; /* vnode ID */ | ||
267 | unsigned vnode_unique; /* vnode ID uniquifier */ | ||
268 | afs_dataversion_t data_version; /* data version */ | ||
269 | }; | ||
270 | |||
271 | /* | ||
272 | * AFS inode private data | ||
273 | */ | ||
274 | struct afs_vnode { | ||
275 | struct inode vfs_inode; /* the VFS's inode record */ | ||
276 | |||
277 | struct afs_volume *volume; /* volume on which vnode resides */ | ||
278 | struct afs_server *server; /* server currently supplying this file */ | ||
279 | struct afs_fid fid; /* the file identifier for this inode */ | ||
280 | struct afs_file_status status; /* AFS status info for this file */ | ||
281 | #ifdef AFS_CACHING_SUPPORT | ||
282 | struct cachefs_cookie *cache; /* caching cookie */ | ||
283 | #endif | ||
284 | |||
285 | wait_queue_head_t update_waitq; /* status fetch waitqueue */ | ||
286 | unsigned update_cnt; /* number of outstanding ops that will update the | ||
287 | * status */ | ||
288 | spinlock_t lock; /* waitqueue/flags lock */ | ||
289 | unsigned long flags; | ||
290 | #define AFS_VNODE_CB_BROKEN 0 /* set if vnode's callback was broken */ | ||
291 | #define AFS_VNODE_CHANGED 1 /* set if vnode's metadata changed */ | ||
292 | #define AFS_VNODE_MODIFIED 2 /* set if vnode's data modified */ | ||
293 | #define AFS_VNODE_ZAP_DATA 3 /* set if vnode's data should be invalidated */ | ||
294 | #define AFS_VNODE_DELETED 4 /* set if vnode deleted on server */ | ||
295 | #define AFS_VNODE_MOUNTPOINT 5 /* set if vnode is a mountpoint symlink */ | ||
296 | #define AFS_VNODE_DIR_CHANGED 6 /* set if vnode's parent dir metadata changed */ | ||
297 | #define AFS_VNODE_DIR_MODIFIED 7 /* set if vnode's parent dir data modified */ | ||
298 | |||
299 | /* outstanding callback notification on this file */ | ||
300 | struct rb_node server_rb; /* link in server->fs_vnodes */ | ||
301 | struct rb_node cb_promise; /* link in server->cb_promises */ | ||
302 | struct work_struct cb_broken_work; /* work to be done on callback break */ | ||
303 | struct mutex cb_broken_lock; /* lock against multiple attempts to fix break */ | ||
304 | // struct list_head cb_hash_link; /* link in master callback hash */ | ||
305 | time_t cb_expires; /* time at which callback expires */ | ||
306 | time_t cb_expires_at; /* time used to order cb_promise */ | ||
307 | unsigned cb_version; /* callback version */ | ||
308 | unsigned cb_expiry; /* callback expiry time */ | ||
309 | afs_callback_type_t cb_type; /* type of callback */ | ||
310 | bool cb_promised; /* true if promise still holds */ | ||
311 | }; | ||
312 | |||
313 | /*****************************************************************************/ | ||
314 | /* | ||
315 | * callback.c | ||
316 | */ | ||
317 | extern void afs_init_callback_state(struct afs_server *); | ||
318 | extern void afs_broken_callback_work(struct work_struct *); | ||
319 | extern void afs_break_callbacks(struct afs_server *, size_t, | ||
320 | struct afs_callback[]); | ||
321 | extern void afs_give_up_callback(struct afs_vnode *); | ||
322 | extern void afs_dispatch_give_up_callbacks(struct work_struct *); | ||
323 | extern void afs_flush_callback_breaks(struct afs_server *); | ||
324 | extern int __init afs_callback_update_init(void); | ||
325 | extern void __exit afs_callback_update_kill(void); | ||
326 | |||
54 | /* | 327 | /* |
55 | * cell.c | 328 | * cell.c |
56 | */ | 329 | */ |
@@ -60,6 +333,19 @@ extern struct list_head afs_proc_cells; | |||
60 | extern struct cachefs_index_def afs_cache_cell_index_def; | 333 | extern struct cachefs_index_def afs_cache_cell_index_def; |
61 | #endif | 334 | #endif |
62 | 335 | ||
336 | #define afs_get_cell(C) do { atomic_inc(&(C)->usage); } while(0) | ||
337 | extern int afs_cell_init(char *); | ||
338 | extern struct afs_cell *afs_cell_create(const char *, char *); | ||
339 | extern struct afs_cell *afs_cell_lookup(const char *, unsigned); | ||
340 | extern struct afs_cell *afs_grab_cell(struct afs_cell *); | ||
341 | extern void afs_put_cell(struct afs_cell *); | ||
342 | extern void afs_cell_purge(void); | ||
343 | |||
344 | /* | ||
345 | * cmservice.c | ||
346 | */ | ||
347 | extern bool afs_cm_incoming_call(struct afs_call *); | ||
348 | |||
63 | /* | 349 | /* |
64 | * dir.c | 350 | * dir.c |
65 | */ | 351 | */ |
@@ -77,9 +363,22 @@ extern int afs_cache_get_page_cookie(struct page *, struct cachefs_page **); | |||
77 | #endif | 363 | #endif |
78 | 364 | ||
79 | /* | 365 | /* |
366 | * fsclient.c | ||
367 | */ | ||
368 | extern int afs_fs_fetch_file_status(struct afs_server *, | ||
369 | struct afs_vnode *, | ||
370 | struct afs_volsync *, | ||
371 | const struct afs_wait_mode *); | ||
372 | extern int afs_fs_give_up_callbacks(struct afs_server *, | ||
373 | const struct afs_wait_mode *); | ||
374 | extern int afs_fs_fetch_data(struct afs_server *, struct afs_vnode *, off_t, | ||
375 | size_t, struct page *, struct afs_volsync *, | ||
376 | const struct afs_wait_mode *); | ||
377 | |||
378 | /* | ||
80 | * inode.c | 379 | * inode.c |
81 | */ | 380 | */ |
82 | extern int afs_iget(struct super_block *, struct afs_fid *, struct inode **); | 381 | extern struct inode *afs_iget(struct super_block *, struct afs_fid *); |
83 | extern int afs_inode_getattr(struct vfsmount *, struct dentry *, | 382 | extern int afs_inode_getattr(struct vfsmount *, struct dentry *, |
84 | struct kstat *); | 383 | struct kstat *); |
85 | extern void afs_clear_inode(struct inode *); | 384 | extern void afs_clear_inode(struct inode *); |
@@ -92,15 +391,20 @@ extern struct cachefs_netfs afs_cache_netfs; | |||
92 | #endif | 391 | #endif |
93 | 392 | ||
94 | /* | 393 | /* |
394 | * misc.c | ||
395 | */ | ||
396 | extern int afs_abort_to_error(u32); | ||
397 | |||
398 | /* | ||
95 | * mntpt.c | 399 | * mntpt.c |
96 | */ | 400 | */ |
97 | extern const struct inode_operations afs_mntpt_inode_operations; | 401 | extern const struct inode_operations afs_mntpt_inode_operations; |
98 | extern const struct file_operations afs_mntpt_file_operations; | 402 | extern const struct file_operations afs_mntpt_file_operations; |
99 | extern struct afs_timer afs_mntpt_expiry_timer; | ||
100 | extern struct afs_timer_ops afs_mntpt_expiry_timer_ops; | ||
101 | extern unsigned long afs_mntpt_expiry_timeout; | 403 | extern unsigned long afs_mntpt_expiry_timeout; |
102 | 404 | ||
103 | extern int afs_mntpt_check_symlink(struct afs_vnode *); | 405 | extern int afs_mntpt_check_symlink(struct afs_vnode *); |
406 | extern void afs_mntpt_kill_timer(void); | ||
407 | extern void afs_umount_begin(struct vfsmount *, int); | ||
104 | 408 | ||
105 | /* | 409 | /* |
106 | * super.c | 410 | * super.c |
@@ -108,16 +412,6 @@ extern int afs_mntpt_check_symlink(struct afs_vnode *); | |||
108 | extern int afs_fs_init(void); | 412 | extern int afs_fs_init(void); |
109 | extern void afs_fs_exit(void); | 413 | extern void afs_fs_exit(void); |
110 | 414 | ||
111 | #define AFS_CB_HASH_COUNT (PAGE_SIZE / sizeof(struct list_head)) | ||
112 | |||
113 | extern struct list_head afs_cb_hash_tbl[]; | ||
114 | extern spinlock_t afs_cb_hash_lock; | ||
115 | |||
116 | #define afs_cb_hash(SRV, FID) \ | ||
117 | afs_cb_hash_tbl[((unsigned long)(SRV) + \ | ||
118 | (FID)->vid + (FID)->vnode + (FID)->unique) & \ | ||
119 | (AFS_CB_HASH_COUNT - 1)] | ||
120 | |||
121 | /* | 415 | /* |
122 | * proc.c | 416 | * proc.c |
123 | */ | 417 | */ |
@@ -126,4 +420,217 @@ extern void afs_proc_cleanup(void); | |||
126 | extern int afs_proc_cell_setup(struct afs_cell *); | 420 | extern int afs_proc_cell_setup(struct afs_cell *); |
127 | extern void afs_proc_cell_remove(struct afs_cell *); | 421 | extern void afs_proc_cell_remove(struct afs_cell *); |
128 | 422 | ||
129 | #endif /* AFS_INTERNAL_H */ | 423 | /* |
424 | * rxrpc.c | ||
425 | */ | ||
426 | extern int afs_open_socket(void); | ||
427 | extern void afs_close_socket(void); | ||
428 | extern int afs_make_call(struct in_addr *, struct afs_call *, gfp_t, | ||
429 | const struct afs_wait_mode *); | ||
430 | extern struct afs_call *afs_alloc_flat_call(const struct afs_call_type *, | ||
431 | size_t, size_t); | ||
432 | extern void afs_flat_call_destructor(struct afs_call *); | ||
433 | extern void afs_transfer_reply(struct afs_call *, struct sk_buff *); | ||
434 | extern void afs_send_empty_reply(struct afs_call *); | ||
435 | extern int afs_extract_data(struct afs_call *, struct sk_buff *, bool, void *, | ||
436 | size_t); | ||
437 | |||
438 | /* | ||
439 | * server.c | ||
440 | */ | ||
441 | extern spinlock_t afs_server_peer_lock; | ||
442 | |||
443 | #define afs_get_server(S) do { atomic_inc(&(S)->usage); } while(0) | ||
444 | |||
445 | extern struct afs_server *afs_lookup_server(struct afs_cell *, | ||
446 | const struct in_addr *); | ||
447 | extern struct afs_server *afs_find_server(const struct in_addr *); | ||
448 | extern void afs_put_server(struct afs_server *); | ||
449 | extern void __exit afs_purge_servers(void); | ||
450 | |||
451 | /* | ||
452 | * vlclient.c | ||
453 | */ | ||
454 | #ifdef AFS_CACHING_SUPPORT | ||
455 | extern struct cachefs_index_def afs_vlocation_cache_index_def; | ||
456 | #endif | ||
457 | |||
458 | extern int afs_vl_get_entry_by_name(struct in_addr *, const char *, | ||
459 | struct afs_cache_vlocation *, | ||
460 | const struct afs_wait_mode *); | ||
461 | extern int afs_vl_get_entry_by_id(struct in_addr *, afs_volid_t, afs_voltype_t, | ||
462 | struct afs_cache_vlocation *, | ||
463 | const struct afs_wait_mode *); | ||
464 | |||
465 | /* | ||
466 | * vlocation.c | ||
467 | */ | ||
468 | #define afs_get_vlocation(V) do { atomic_inc(&(V)->usage); } while(0) | ||
469 | |||
470 | extern int __init afs_vlocation_update_init(void); | ||
471 | extern struct afs_vlocation *afs_vlocation_lookup(struct afs_cell *, | ||
472 | const char *, size_t); | ||
473 | extern void afs_put_vlocation(struct afs_vlocation *); | ||
474 | extern void __exit afs_vlocation_purge(void); | ||
475 | |||
476 | /* | ||
477 | * vnode.c | ||
478 | */ | ||
479 | #ifdef AFS_CACHING_SUPPORT | ||
480 | extern struct cachefs_index_def afs_vnode_cache_index_def; | ||
481 | #endif | ||
482 | |||
483 | extern struct afs_timer_ops afs_vnode_cb_timed_out_ops; | ||
484 | |||
485 | static inline struct afs_vnode *AFS_FS_I(struct inode *inode) | ||
486 | { | ||
487 | return container_of(inode, struct afs_vnode, vfs_inode); | ||
488 | } | ||
489 | |||
490 | static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode) | ||
491 | { | ||
492 | return &vnode->vfs_inode; | ||
493 | } | ||
494 | |||
495 | extern int afs_vnode_fetch_status(struct afs_vnode *); | ||
496 | extern int afs_vnode_fetch_data(struct afs_vnode *vnode, off_t, size_t, | ||
497 | struct page *); | ||
498 | |||
499 | /* | ||
500 | * volume.c | ||
501 | */ | ||
502 | #ifdef AFS_CACHING_SUPPORT | ||
503 | extern struct cachefs_index_def afs_volume_cache_index_def; | ||
504 | #endif | ||
505 | |||
506 | #define afs_get_volume(V) do { atomic_inc(&(V)->usage); } while(0) | ||
507 | |||
508 | extern void afs_put_volume(struct afs_volume *); | ||
509 | extern struct afs_volume *afs_volume_lookup(const char *, struct afs_cell *, | ||
510 | int); | ||
511 | extern struct afs_server *afs_volume_pick_fileserver(struct afs_vnode *); | ||
512 | extern int afs_volume_release_fileserver(struct afs_vnode *, | ||
513 | struct afs_server *, int); | ||
514 | |||
515 | /*****************************************************************************/ | ||
516 | /* | ||
517 | * debug tracing | ||
518 | */ | ||
519 | extern unsigned afs_debug; | ||
520 | |||
521 | #define dbgprintk(FMT,...) \ | ||
522 | printk("[%x%-6.6s] "FMT"\n", smp_processor_id(), current->comm ,##__VA_ARGS__) | ||
523 | |||
524 | /* make sure we maintain the format strings, even when debugging is disabled */ | ||
525 | static inline __attribute__((format(printf,1,2))) | ||
526 | void _dbprintk(const char *fmt, ...) | ||
527 | { | ||
528 | } | ||
529 | |||
530 | #define kenter(FMT,...) dbgprintk("==> %s("FMT")",__FUNCTION__ ,##__VA_ARGS__) | ||
531 | #define kleave(FMT,...) dbgprintk("<== %s()"FMT"",__FUNCTION__ ,##__VA_ARGS__) | ||
532 | #define kdebug(FMT,...) dbgprintk(" "FMT ,##__VA_ARGS__) | ||
533 | |||
534 | |||
535 | #if defined(__KDEBUG) | ||
536 | #define _enter(FMT,...) kenter(FMT,##__VA_ARGS__) | ||
537 | #define _leave(FMT,...) kleave(FMT,##__VA_ARGS__) | ||
538 | #define _debug(FMT,...) kdebug(FMT,##__VA_ARGS__) | ||
539 | |||
540 | #elif defined(CONFIG_AFS_DEBUG) | ||
541 | #define AFS_DEBUG_KENTER 0x01 | ||
542 | #define AFS_DEBUG_KLEAVE 0x02 | ||
543 | #define AFS_DEBUG_KDEBUG 0x04 | ||
544 | |||
545 | #define _enter(FMT,...) \ | ||
546 | do { \ | ||
547 | if (unlikely(afs_debug & AFS_DEBUG_KENTER)) \ | ||
548 | kenter(FMT,##__VA_ARGS__); \ | ||
549 | } while (0) | ||
550 | |||
551 | #define _leave(FMT,...) \ | ||
552 | do { \ | ||
553 | if (unlikely(afs_debug & AFS_DEBUG_KLEAVE)) \ | ||
554 | kleave(FMT,##__VA_ARGS__); \ | ||
555 | } while (0) | ||
556 | |||
557 | #define _debug(FMT,...) \ | ||
558 | do { \ | ||
559 | if (unlikely(afs_debug & AFS_DEBUG_KDEBUG)) \ | ||
560 | kdebug(FMT,##__VA_ARGS__); \ | ||
561 | } while (0) | ||
562 | |||
563 | #else | ||
564 | #define _enter(FMT,...) _dbprintk("==> %s("FMT")",__FUNCTION__ ,##__VA_ARGS__) | ||
565 | #define _leave(FMT,...) _dbprintk("<== %s()"FMT"",__FUNCTION__ ,##__VA_ARGS__) | ||
566 | #define _debug(FMT,...) _dbprintk(" "FMT ,##__VA_ARGS__) | ||
567 | #endif | ||
568 | |||
569 | /* | ||
570 | * debug assertion checking | ||
571 | */ | ||
572 | #if 1 // defined(__KDEBUGALL) | ||
573 | |||
574 | #define ASSERT(X) \ | ||
575 | do { \ | ||
576 | if (unlikely(!(X))) { \ | ||
577 | printk(KERN_ERR "\n"); \ | ||
578 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | ||
579 | BUG(); \ | ||
580 | } \ | ||
581 | } while(0) | ||
582 | |||
583 | #define ASSERTCMP(X, OP, Y) \ | ||
584 | do { \ | ||
585 | if (unlikely(!((X) OP (Y)))) { \ | ||
586 | printk(KERN_ERR "\n"); \ | ||
587 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | ||
588 | printk(KERN_ERR "%lu " #OP " %lu is false\n", \ | ||
589 | (unsigned long)(X), (unsigned long)(Y)); \ | ||
590 | printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \ | ||
591 | (unsigned long)(X), (unsigned long)(Y)); \ | ||
592 | BUG(); \ | ||
593 | } \ | ||
594 | } while(0) | ||
595 | |||
596 | #define ASSERTIF(C, X) \ | ||
597 | do { \ | ||
598 | if (unlikely((C) && !(X))) { \ | ||
599 | printk(KERN_ERR "\n"); \ | ||
600 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | ||
601 | BUG(); \ | ||
602 | } \ | ||
603 | } while(0) | ||
604 | |||
605 | #define ASSERTIFCMP(C, X, OP, Y) \ | ||
606 | do { \ | ||
607 | if (unlikely((C) && !((X) OP (Y)))) { \ | ||
608 | printk(KERN_ERR "\n"); \ | ||
609 | printk(KERN_ERR "AFS: Assertion failed\n"); \ | ||
610 | printk(KERN_ERR "%lu " #OP " %lu is false\n", \ | ||
611 | (unsigned long)(X), (unsigned long)(Y)); \ | ||
612 | printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \ | ||
613 | (unsigned long)(X), (unsigned long)(Y)); \ | ||
614 | BUG(); \ | ||
615 | } \ | ||
616 | } while(0) | ||
617 | |||
618 | #else | ||
619 | |||
620 | #define ASSERT(X) \ | ||
621 | do { \ | ||
622 | } while(0) | ||
623 | |||
624 | #define ASSERTCMP(X, OP, Y) \ | ||
625 | do { \ | ||
626 | } while(0) | ||
627 | |||
628 | #define ASSERTIF(C, X) \ | ||
629 | do { \ | ||
630 | } while(0) | ||
631 | |||
632 | #define ASSERTIFCMP(C, X, OP, Y) \ | ||
633 | do { \ | ||
634 | } while(0) | ||
635 | |||
636 | #endif /* __KDEBUGALL */ | ||