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1 | /* |
2 | * linux/include/linux/nfs_fs.h |
3 | * |
4 | * Copyright (C) 1992 Rick Sladkey |
5 | * |
6 | * OS-specific nfs filesystem definitions and declarations |
7 | */ |
8 | |
9 | #ifndef _LINUX_NFS_FS_H |
10 | #define _LINUX_NFS_FS_H |
11 | |
12 | #include <linux/magic.h> |
13 | |
14 | /* Default timeout values */ |
15 | #define NFS_DEF_UDP_TIMEO (11) |
16 | #define NFS_DEF_UDP_RETRANS (3) |
17 | #define NFS_DEF_TCP_TIMEO (600) |
18 | #define NFS_DEF_TCP_RETRANS (2) |
19 | |
20 | #define NFS_MAX_UDP_TIMEOUT (60*HZ) |
21 | #define NFS_MAX_TCP_TIMEOUT (600*HZ) |
22 | |
23 | #define NFS_DEF_ACREGMIN (3) |
24 | #define NFS_DEF_ACREGMAX (60) |
25 | #define NFS_DEF_ACDIRMIN (30) |
26 | #define NFS_DEF_ACDIRMAX (60) |
27 | |
28 | /* |
29 | * When flushing a cluster of dirty pages, there can be different |
30 | * strategies: |
31 | */ |
32 | #define FLUSH_SYNC 1 /* file being synced, or contention */ |
33 | #define FLUSH_STABLE 4 /* commit to stable storage */ |
34 | #define FLUSH_LOWPRI 8 /* low priority background flush */ |
35 | #define FLUSH_HIGHPRI 16 /* high priority memory reclaim flush */ |
36 | |
37 | #ifdef __KERNEL__ |
38 | |
39 | #include <linux/in.h> |
40 | #include <linux/mm.h> |
41 | #include <linux/pagemap.h> |
42 | #include <linux/rbtree.h> |
43 | #include <linux/rwsem.h> |
44 | #include <linux/wait.h> |
45 | |
46 | #include <linux/sunrpc/debug.h> |
47 | #include <linux/sunrpc/auth.h> |
48 | #include <linux/sunrpc/clnt.h> |
49 | |
50 | #include <linux/nfs.h> |
51 | #include <linux/nfs2.h> |
52 | #include <linux/nfs3.h> |
53 | #include <linux/nfs4.h> |
54 | #include <linux/nfs_xdr.h> |
55 | #include <linux/nfs_fs_sb.h> |
56 | |
57 | #include <linux/mempool.h> |
58 | |
59 | /* |
60 | * These are the default flags for swap requests |
61 | */ |
62 | #define NFS_RPC_SWAPFLAGS (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS) |
63 | |
64 | /* |
65 | * NFSv3/v4 Access mode cache entry |
66 | */ |
67 | struct nfs_access_entry { |
68 | struct rb_node rb_node; |
69 | struct list_head lru; |
70 | unsigned long jiffies; |
71 | struct rpc_cred * cred; |
72 | int mask; |
73 | }; |
74 | |
75 | struct nfs_lock_context { |
76 | atomic_t count; |
77 | struct list_head list; |
78 | struct nfs_open_context *open_context; |
79 | fl_owner_t lockowner; |
80 | pid_t pid; |
81 | }; |
82 | |
83 | struct nfs4_state; |
84 | struct nfs_open_context { |
85 | struct nfs_lock_context lock_context; |
86 | struct path path; |
87 | struct rpc_cred *cred; |
88 | struct nfs4_state *state; |
89 | fmode_t mode; |
90 | |
91 | unsigned long flags; |
92 | #define NFS_CONTEXT_ERROR_WRITE (0) |
93 | int error; |
94 | |
95 | struct list_head list; |
96 | |
97 | __u64 dir_cookie; |
98 | }; |
99 | |
100 | /* |
101 | * NFSv4 delegation |
102 | */ |
103 | struct nfs_delegation; |
104 | |
105 | struct posix_acl; |
106 | |
107 | /* |
108 | * nfs fs inode data in memory |
109 | */ |
110 | struct nfs_inode { |
111 | /* |
112 | * The 64bit 'inode number' |
113 | */ |
114 | __u64 fileid; |
115 | |
116 | /* |
117 | * NFS file handle |
118 | */ |
119 | struct nfs_fh fh; |
120 | |
121 | /* |
122 | * Various flags |
123 | */ |
124 | unsigned long flags; /* atomic bit ops */ |
125 | unsigned long cache_validity; /* bit mask */ |
126 | |
127 | /* |
128 | * read_cache_jiffies is when we started read-caching this inode. |
129 | * attrtimeo is for how long the cached information is assumed |
130 | * to be valid. A successful attribute revalidation doubles |
131 | * attrtimeo (up to acregmax/acdirmax), a failure resets it to |
132 | * acregmin/acdirmin. |
133 | * |
134 | * We need to revalidate the cached attrs for this inode if |
135 | * |
136 | * jiffies - read_cache_jiffies >= attrtimeo |
137 | * |
138 | * Please note the comparison is greater than or equal |
139 | * so that zero timeout values can be specified. |
140 | */ |
141 | unsigned long read_cache_jiffies; |
142 | unsigned long attrtimeo; |
143 | unsigned long attrtimeo_timestamp; |
144 | __u64 change_attr; /* v4 only */ |
145 | |
146 | unsigned long attr_gencount; |
147 | /* "Generation counter" for the attribute cache. This is |
148 | * bumped whenever we update the metadata on the |
149 | * server. |
150 | */ |
151 | unsigned long cache_change_attribute; |
152 | |
153 | struct rb_root access_cache; |
154 | struct list_head access_cache_entry_lru; |
155 | struct list_head access_cache_inode_lru; |
156 | #ifdef CONFIG_NFS_V3_ACL |
157 | struct posix_acl *acl_access; |
158 | struct posix_acl *acl_default; |
159 | #endif |
160 | |
161 | /* |
162 | * This is the cookie verifier used for NFSv3 readdir |
163 | * operations |
164 | */ |
165 | __be32 cookieverf[2]; |
166 | |
167 | /* |
168 | * This is the list of dirty unwritten pages. |
169 | */ |
170 | struct radix_tree_root nfs_page_tree; |
171 | |
172 | unsigned long npages; |
173 | unsigned long ncommit; |
174 | |
175 | /* Open contexts for shared mmap writes */ |
176 | struct list_head open_files; |
177 | |
178 | /* Number of in-flight sillydelete RPC calls */ |
179 | atomic_t silly_count; |
180 | /* List of deferred sillydelete requests */ |
181 | struct hlist_head silly_list; |
182 | wait_queue_head_t waitqueue; |
183 | |
184 | #ifdef CONFIG_NFS_V4 |
185 | struct nfs4_cached_acl *nfs4_acl; |
186 | /* NFSv4 state */ |
187 | struct list_head open_states; |
188 | struct nfs_delegation __rcu *delegation; |
189 | fmode_t delegation_state; |
190 | struct rw_semaphore rwsem; |
191 | |
192 | /* pNFS layout information */ |
193 | struct pnfs_layout_hdr *layout; |
194 | #endif /* CONFIG_NFS_V4*/ |
195 | #ifdef CONFIG_NFS_FSCACHE |
196 | struct fscache_cookie *fscache; |
197 | #endif |
198 | struct inode vfs_inode; |
199 | }; |
200 | |
201 | /* |
202 | * Cache validity bit flags |
203 | */ |
204 | #define NFS_INO_INVALID_ATTR 0x0001 /* cached attrs are invalid */ |
205 | #define NFS_INO_INVALID_DATA 0x0002 /* cached data is invalid */ |
206 | #define NFS_INO_INVALID_ATIME 0x0004 /* cached atime is invalid */ |
207 | #define NFS_INO_INVALID_ACCESS 0x0008 /* cached access cred invalid */ |
208 | #define NFS_INO_INVALID_ACL 0x0010 /* cached acls are invalid */ |
209 | #define NFS_INO_REVAL_PAGECACHE 0x0020 /* must revalidate pagecache */ |
210 | #define NFS_INO_REVAL_FORCED 0x0040 /* force revalidation ignoring a delegation */ |
211 | |
212 | /* |
213 | * Bit offsets in flags field |
214 | */ |
215 | #define NFS_INO_ADVISE_RDPLUS (0) /* advise readdirplus */ |
216 | #define NFS_INO_STALE (1) /* possible stale inode */ |
217 | #define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */ |
218 | #define NFS_INO_MOUNTPOINT (3) /* inode is remote mountpoint */ |
219 | #define NFS_INO_FLUSHING (4) /* inode is flushing out data */ |
220 | #define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */ |
221 | #define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */ |
222 | #define NFS_INO_COMMIT (7) /* inode is committing unstable writes */ |
223 | |
224 | static inline struct nfs_inode *NFS_I(const struct inode *inode) |
225 | { |
226 | return container_of(inode, struct nfs_inode, vfs_inode); |
227 | } |
228 | |
229 | static inline struct nfs_server *NFS_SB(const struct super_block *s) |
230 | { |
231 | return (struct nfs_server *)(s->s_fs_info); |
232 | } |
233 | |
234 | static inline struct nfs_fh *NFS_FH(const struct inode *inode) |
235 | { |
236 | return &NFS_I(inode)->fh; |
237 | } |
238 | |
239 | static inline struct nfs_server *NFS_SERVER(const struct inode *inode) |
240 | { |
241 | return NFS_SB(inode->i_sb); |
242 | } |
243 | |
244 | static inline struct rpc_clnt *NFS_CLIENT(const struct inode *inode) |
245 | { |
246 | return NFS_SERVER(inode)->client; |
247 | } |
248 | |
249 | static inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode) |
250 | { |
251 | return NFS_SERVER(inode)->nfs_client->rpc_ops; |
252 | } |
253 | |
254 | static inline __be32 *NFS_COOKIEVERF(const struct inode *inode) |
255 | { |
256 | return NFS_I(inode)->cookieverf; |
257 | } |
258 | |
259 | static inline unsigned NFS_MINATTRTIMEO(const struct inode *inode) |
260 | { |
261 | struct nfs_server *nfss = NFS_SERVER(inode); |
262 | return S_ISDIR(inode->i_mode) ? nfss->acdirmin : nfss->acregmin; |
263 | } |
264 | |
265 | static inline unsigned NFS_MAXATTRTIMEO(const struct inode *inode) |
266 | { |
267 | struct nfs_server *nfss = NFS_SERVER(inode); |
268 | return S_ISDIR(inode->i_mode) ? nfss->acdirmax : nfss->acregmax; |
269 | } |
270 | |
271 | static inline int NFS_STALE(const struct inode *inode) |
272 | { |
273 | return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags); |
274 | } |
275 | |
276 | static inline int NFS_FSCACHE(const struct inode *inode) |
277 | { |
278 | return test_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags); |
279 | } |
280 | |
281 | static inline __u64 NFS_FILEID(const struct inode *inode) |
282 | { |
283 | return NFS_I(inode)->fileid; |
284 | } |
285 | |
286 | static inline void set_nfs_fileid(struct inode *inode, __u64 fileid) |
287 | { |
288 | NFS_I(inode)->fileid = fileid; |
289 | } |
290 | |
291 | static inline void nfs_mark_for_revalidate(struct inode *inode) |
292 | { |
293 | struct nfs_inode *nfsi = NFS_I(inode); |
294 | |
295 | spin_lock(&inode->i_lock); |
296 | nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS; |
297 | if (S_ISDIR(inode->i_mode)) |
298 | nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA; |
299 | spin_unlock(&inode->i_lock); |
300 | } |
301 | |
302 | static inline int nfs_server_capable(struct inode *inode, int cap) |
303 | { |
304 | return NFS_SERVER(inode)->caps & cap; |
305 | } |
306 | |
307 | static inline int NFS_USE_READDIRPLUS(struct inode *inode) |
308 | { |
309 | return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags); |
310 | } |
311 | |
312 | static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf) |
313 | { |
314 | dentry->d_time = verf; |
315 | } |
316 | |
317 | /** |
318 | * nfs_save_change_attribute - Returns the inode attribute change cookie |
319 | * @dir - pointer to parent directory inode |
320 | * The "change attribute" is updated every time we finish an operation |
321 | * that will result in a metadata change on the server. |
322 | */ |
323 | static inline unsigned long nfs_save_change_attribute(struct inode *dir) |
324 | { |
325 | return NFS_I(dir)->cache_change_attribute; |
326 | } |
327 | |
328 | /** |
329 | * nfs_verify_change_attribute - Detects NFS remote directory changes |
330 | * @dir - pointer to parent directory inode |
331 | * @chattr - previously saved change attribute |
332 | * Return "false" if the verifiers doesn't match the change attribute. |
333 | * This would usually indicate that the directory contents have changed on |
334 | * the server, and that any dentries need revalidating. |
335 | */ |
336 | static inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr) |
337 | { |
338 | return chattr == NFS_I(dir)->cache_change_attribute; |
339 | } |
340 | |
341 | /* |
342 | * linux/fs/nfs/inode.c |
343 | */ |
344 | extern int nfs_sync_mapping(struct address_space *mapping); |
345 | extern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping); |
346 | extern void nfs_zap_caches(struct inode *); |
347 | extern void nfs_invalidate_atime(struct inode *); |
348 | extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *, |
349 | struct nfs_fattr *); |
350 | extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *); |
351 | extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr); |
352 | extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr); |
353 | extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); |
354 | extern int nfs_permission(struct inode *, int); |
355 | extern int nfs_open(struct inode *, struct file *); |
356 | extern int nfs_release(struct inode *, struct file *); |
357 | extern int nfs_attribute_timeout(struct inode *inode); |
358 | extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode); |
359 | extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *); |
360 | extern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping); |
361 | extern int nfs_setattr(struct dentry *, struct iattr *); |
362 | extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr); |
363 | extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); |
364 | extern void put_nfs_open_context(struct nfs_open_context *ctx); |
365 | extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode); |
366 | extern struct nfs_open_context *alloc_nfs_open_context(struct path *path, struct rpc_cred *cred, fmode_t f_mode); |
367 | extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx); |
368 | extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx); |
369 | extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx); |
370 | extern u64 nfs_compat_user_ino64(u64 fileid); |
371 | extern void nfs_fattr_init(struct nfs_fattr *fattr); |
372 | extern unsigned long nfs_inc_attr_generation_counter(void); |
373 | |
374 | extern struct nfs_fattr *nfs_alloc_fattr(void); |
375 | |
376 | static inline void nfs_free_fattr(const struct nfs_fattr *fattr) |
377 | { |
378 | kfree(fattr); |
379 | } |
380 | |
381 | extern struct nfs_fh *nfs_alloc_fhandle(void); |
382 | |
383 | static inline void nfs_free_fhandle(const struct nfs_fh *fh) |
384 | { |
385 | kfree(fh); |
386 | } |
387 | |
388 | /* |
389 | * linux/fs/nfs/nfsroot.c |
390 | */ |
391 | extern int nfs_root_data(char **root_device, char **root_data); /*__init*/ |
392 | /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ |
393 | extern __be32 root_nfs_parse_addr(char *name); /*__init*/ |
394 | |
395 | /* |
396 | * linux/fs/nfs/file.c |
397 | */ |
398 | extern const struct inode_operations nfs_file_inode_operations; |
399 | #ifdef CONFIG_NFS_V3 |
400 | extern const struct inode_operations nfs3_file_inode_operations; |
401 | #endif /* CONFIG_NFS_V3 */ |
402 | extern const struct file_operations nfs_file_operations; |
403 | extern const struct address_space_operations nfs_file_aops; |
404 | extern const struct address_space_operations nfs_dir_aops; |
405 | |
406 | static inline struct nfs_open_context *nfs_file_open_context(struct file *filp) |
407 | { |
408 | return filp->private_data; |
409 | } |
410 | |
411 | static inline struct rpc_cred *nfs_file_cred(struct file *file) |
412 | { |
413 | if (file != NULL) { |
414 | struct nfs_open_context *ctx = |
415 | nfs_file_open_context(file); |
416 | if (ctx) |
417 | return ctx->cred; |
418 | } |
419 | return NULL; |
420 | } |
421 | |
422 | /* |
423 | * linux/fs/nfs/xattr.c |
424 | */ |
425 | #ifdef CONFIG_NFS_V3_ACL |
426 | extern ssize_t nfs3_listxattr(struct dentry *, char *, size_t); |
427 | extern ssize_t nfs3_getxattr(struct dentry *, const char *, void *, size_t); |
428 | extern int nfs3_setxattr(struct dentry *, const char *, |
429 | const void *, size_t, int); |
430 | extern int nfs3_removexattr (struct dentry *, const char *name); |
431 | #else |
432 | # define nfs3_listxattr NULL |
433 | # define nfs3_getxattr NULL |
434 | # define nfs3_setxattr NULL |
435 | # define nfs3_removexattr NULL |
436 | #endif |
437 | |
438 | /* |
439 | * linux/fs/nfs/direct.c |
440 | */ |
441 | extern ssize_t nfs_direct_IO(int, struct kiocb *, const struct iovec *, loff_t, |
442 | unsigned long); |
443 | extern ssize_t nfs_file_direct_read(struct kiocb *iocb, |
444 | const struct iovec *iov, unsigned long nr_segs, |
445 | loff_t pos); |
446 | extern ssize_t nfs_file_direct_write(struct kiocb *iocb, |
447 | const struct iovec *iov, unsigned long nr_segs, |
448 | loff_t pos); |
449 | |
450 | /* |
451 | * linux/fs/nfs/dir.c |
452 | */ |
453 | extern const struct inode_operations nfs_dir_inode_operations; |
454 | #ifdef CONFIG_NFS_V3 |
455 | extern const struct inode_operations nfs3_dir_inode_operations; |
456 | #endif /* CONFIG_NFS_V3 */ |
457 | extern const struct file_operations nfs_dir_operations; |
458 | extern const struct dentry_operations nfs_dentry_operations; |
459 | |
460 | extern void nfs_force_lookup_revalidate(struct inode *dir); |
461 | extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr); |
462 | extern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags); |
463 | extern void nfs_access_zap_cache(struct inode *inode); |
464 | |
465 | /* |
466 | * linux/fs/nfs/symlink.c |
467 | */ |
468 | extern const struct inode_operations nfs_symlink_inode_operations; |
469 | |
470 | /* |
471 | * linux/fs/nfs/sysctl.c |
472 | */ |
473 | #ifdef CONFIG_SYSCTL |
474 | extern int nfs_register_sysctl(void); |
475 | extern void nfs_unregister_sysctl(void); |
476 | #else |
477 | #define nfs_register_sysctl() 0 |
478 | #define nfs_unregister_sysctl() do { } while(0) |
479 | #endif |
480 | |
481 | /* |
482 | * linux/fs/nfs/namespace.c |
483 | */ |
484 | extern const struct inode_operations nfs_mountpoint_inode_operations; |
485 | extern const struct inode_operations nfs_referral_inode_operations; |
486 | extern int nfs_mountpoint_expiry_timeout; |
487 | extern void nfs_release_automount_timer(void); |
488 | |
489 | /* |
490 | * linux/fs/nfs/unlink.c |
491 | */ |
492 | extern void nfs_complete_unlink(struct dentry *dentry, struct inode *); |
493 | extern void nfs_block_sillyrename(struct dentry *dentry); |
494 | extern void nfs_unblock_sillyrename(struct dentry *dentry); |
495 | extern int nfs_sillyrename(struct inode *dir, struct dentry *dentry); |
496 | |
497 | /* |
498 | * linux/fs/nfs/write.c |
499 | */ |
500 | extern int nfs_congestion_kb; |
501 | extern int nfs_writepage(struct page *page, struct writeback_control *wbc); |
502 | extern int nfs_writepages(struct address_space *, struct writeback_control *); |
503 | extern int nfs_flush_incompatible(struct file *file, struct page *page); |
504 | extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int); |
505 | extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *); |
506 | |
507 | /* |
508 | * Try to write back everything synchronously (but check the |
509 | * return value!) |
510 | */ |
511 | extern int nfs_wb_all(struct inode *inode); |
512 | extern int nfs_wb_page(struct inode *inode, struct page* page); |
513 | extern int nfs_wb_page_cancel(struct inode *inode, struct page* page); |
514 | #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) |
515 | extern int nfs_commit_inode(struct inode *, int); |
516 | extern struct nfs_write_data *nfs_commitdata_alloc(void); |
517 | extern void nfs_commit_free(struct nfs_write_data *wdata); |
518 | #else |
519 | static inline int |
520 | nfs_commit_inode(struct inode *inode, int how) |
521 | { |
522 | return 0; |
523 | } |
524 | #endif |
525 | |
526 | static inline int |
527 | nfs_have_writebacks(struct inode *inode) |
528 | { |
529 | return NFS_I(inode)->npages != 0; |
530 | } |
531 | |
532 | /* |
533 | * Allocate nfs_write_data structures |
534 | */ |
535 | extern struct nfs_write_data *nfs_writedata_alloc(unsigned int npages); |
536 | extern void nfs_writedata_free(struct nfs_write_data *); |
537 | |
538 | /* |
539 | * linux/fs/nfs/read.c |
540 | */ |
541 | extern int nfs_readpage(struct file *, struct page *); |
542 | extern int nfs_readpages(struct file *, struct address_space *, |
543 | struct list_head *, unsigned); |
544 | extern int nfs_readpage_result(struct rpc_task *, struct nfs_read_data *); |
545 | extern int nfs_readpage_async(struct nfs_open_context *, struct inode *, |
546 | struct page *); |
547 | |
548 | /* |
549 | * Allocate nfs_read_data structures |
550 | */ |
551 | extern struct nfs_read_data *nfs_readdata_alloc(unsigned int npages); |
552 | extern void nfs_readdata_free(struct nfs_read_data *); |
553 | |
554 | /* |
555 | * linux/fs/nfs3proc.c |
556 | */ |
557 | #ifdef CONFIG_NFS_V3_ACL |
558 | extern struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type); |
559 | extern int nfs3_proc_setacl(struct inode *inode, int type, |
560 | struct posix_acl *acl); |
561 | extern int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode, |
562 | mode_t mode); |
563 | extern void nfs3_forget_cached_acls(struct inode *inode); |
564 | #else |
565 | static inline int nfs3_proc_set_default_acl(struct inode *dir, |
566 | struct inode *inode, |
567 | mode_t mode) |
568 | { |
569 | return 0; |
570 | } |
571 | |
572 | static inline void nfs3_forget_cached_acls(struct inode *inode) |
573 | { |
574 | } |
575 | #endif /* CONFIG_NFS_V3_ACL */ |
576 | |
577 | /* |
578 | * inline functions |
579 | */ |
580 | |
581 | static inline loff_t nfs_size_to_loff_t(__u64 size) |
582 | { |
583 | if (size > (__u64) OFFSET_MAX - 1) |
584 | return OFFSET_MAX - 1; |
585 | return (loff_t) size; |
586 | } |
587 | |
588 | static inline ino_t |
589 | nfs_fileid_to_ino_t(u64 fileid) |
590 | { |
591 | ino_t ino = (ino_t) fileid; |
592 | if (sizeof(ino_t) < sizeof(u64)) |
593 | ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8; |
594 | return ino; |
595 | } |
596 | |
597 | #define NFS_JUKEBOX_RETRY_TIME (5 * HZ) |
598 | |
599 | #endif /* __KERNEL__ */ |
600 | |
601 | /* |
602 | * NFS debug flags |
603 | */ |
604 | #define NFSDBG_VFS 0x0001 |
605 | #define NFSDBG_DIRCACHE 0x0002 |
606 | #define NFSDBG_LOOKUPCACHE 0x0004 |
607 | #define NFSDBG_PAGECACHE 0x0008 |
608 | #define NFSDBG_PROC 0x0010 |
609 | #define NFSDBG_XDR 0x0020 |
610 | #define NFSDBG_FILE 0x0040 |
611 | #define NFSDBG_ROOT 0x0080 |
612 | #define NFSDBG_CALLBACK 0x0100 |
613 | #define NFSDBG_CLIENT 0x0200 |
614 | #define NFSDBG_MOUNT 0x0400 |
615 | #define NFSDBG_FSCACHE 0x0800 |
616 | #define NFSDBG_PNFS 0x1000 |
617 | #define NFSDBG_PNFS_LD 0x2000 |
618 | #define NFSDBG_ALL 0xFFFF |
619 | |
620 | #ifdef __KERNEL__ |
621 | |
622 | /* |
623 | * Enable debugging support for nfs client. |
624 | * Requires RPC_DEBUG. |
625 | */ |
626 | #ifdef RPC_DEBUG |
627 | # define NFS_DEBUG |
628 | #endif |
629 | |
630 | # undef ifdebug |
631 | # ifdef NFS_DEBUG |
632 | # define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac)) |
633 | # else |
634 | # define ifdebug(fac) if (0) |
635 | # endif |
636 | #endif /* __KERNEL */ |
637 | |
638 | #endif |
639 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9