]> bbs.cooldavid.org Git - net-next-2.6.git/blame - include/linux/nfs_fs.h
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[IPV6]: ROUTE: Add accept_ra_defrtr sysctl.
[net-next-2.6.git] / include / linux / nfs_fs.h
CommitLineData
1da177e4
LT		 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/config.h>
13#include <linux/in.h>
14#include <linux/mm.h>
15#include <linux/pagemap.h>
16#include <linux/rwsem.h>
17#include <linux/wait.h>
1da177e4
LT		 18
19#include <linux/nfs_fs_sb.h>
20
21#include <linux/sunrpc/debug.h>
22#include <linux/sunrpc/auth.h>
23#include <linux/sunrpc/clnt.h>
24
25#include <linux/nfs.h>
26#include <linux/nfs2.h>
27#include <linux/nfs3.h>
28#include <linux/nfs4.h>
29#include <linux/nfs_xdr.h>
30#include <linux/rwsem.h>
1da177e4
LT		 31#include <linux/mempool.h>
32
33/*
34 * Enable debugging support for nfs client.
35 * Requires RPC_DEBUG.
36 */
37#ifdef RPC_DEBUG
38# define NFS_DEBUG
39#endif
40
03bf4b70
CL		 41/* Default timeout values */
42#define NFS_MAX_UDP_TIMEOUT (60*HZ)
43#define NFS_MAX_TCP_TIMEOUT (600*HZ)
44
1da177e4
LT		 45/*
46 * superblock magic number for NFS
47 */
48#define NFS_SUPER_MAGIC 0x6969
49
50/*
51 * These are the default flags for swap requests
52 */
53#define NFS_RPC_SWAPFLAGS (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS)
54
1da177e4
LT		 55/*
56 * When flushing a cluster of dirty pages, there can be different
57 * strategies:
58 */
59#define FLUSH_AGING 0 /* only flush old buffers */
60#define FLUSH_SYNC 1 /* file being synced, or contention */
61#define FLUSH_WAIT 2 /* wait for completion */
62#define FLUSH_STABLE 4 /* commit to stable storage */
63#define FLUSH_LOWPRI 8 /* low priority background flush */
64#define FLUSH_HIGHPRI 16 /* high priority memory reclaim flush */
70b9ecbd 65#define FLUSH_NOCOMMIT 32 /* Don't send the NFSv3/v4 COMMIT */
1da177e4
LT		 66
67#ifdef __KERNEL__
68
69/*
70 * NFSv3/v4 Access mode cache entry
71 */
72struct nfs_access_entry {
73 unsigned long jiffies;
74 struct rpc_cred * cred;
75 int mask;
76};
77
78struct nfs4_state;
79struct nfs_open_context {
80 atomic_t count;
81 struct dentry *dentry;
82 struct rpc_cred *cred;
83 struct nfs4_state *state;
84 fl_owner_t lockowner;
85 int mode;
86 int error;
87
88 struct list_head list;
00a92642 89
00a92642 90 __u64 dir_cookie;
1da177e4
LT		 91};
92
93/*
94 * NFSv4 delegation
95 */
96struct nfs_delegation;
97
5c6a9f7d
AG		 98struct posix_acl;
99
1da177e4
LT		 100/*
101 * nfs fs inode data in memory
102 */
103struct nfs_inode {
104 /*
105 * The 64bit 'inode number'
106 */
107 __u64 fileid;
108
109 /*
110 * NFS file handle
111 */
112 struct nfs_fh fh;
113
114 /*
115 * Various flags
116 */
412d582e
CL		 117 unsigned long flags; /* atomic bit ops */
118 unsigned long cache_validity; /* bit mask */
1da177e4
LT		 119
120 /*
121 * read_cache_jiffies is when we started read-caching this inode,
122 * and read_cache_mtime is the mtime of the inode at that time.
123 * attrtimeo is for how long the cached information is assumed
124 * to be valid. A successful attribute revalidation doubles
125 * attrtimeo (up to acregmax/acdirmax), a failure resets it to
126 * acregmin/acdirmin.
127 *
128 * We need to revalidate the cached attrs for this inode if
129 *
130 * jiffies - read_cache_jiffies > attrtimeo
131 *
132 * and invalidate any cached data/flush out any dirty pages if
133 * we find that
134 *
135 * mtime != read_cache_mtime
136 */
1da177e4
LT		 137 unsigned long read_cache_jiffies;
138 unsigned long attrtimeo;
139 unsigned long attrtimeo_timestamp;
140 __u64 change_attr; /* v4 only */
141
33801147 142 unsigned long last_updated;
1da177e4
LT		 143 /* "Generation counter" for the attribute cache. This is
144 * bumped whenever we update the metadata on the
145 * server.
146 */
147 unsigned long cache_change_attribute;
148 /*
149 * Counter indicating the number of outstanding requests that
150 * will cause a file data update.
151 */
152 atomic_t data_updates;
153
154 struct nfs_access_entry cache_access;
5c6a9f7d
AG		 155#ifdef CONFIG_NFS_V3_ACL
156 struct posix_acl *acl_access;
157 struct posix_acl *acl_default;
158#endif
1da177e4
LT		 159
160 /*
161 * This is the cookie verifier used for NFSv3 readdir
162 * operations
163 */
164 __u32 cookieverf[2];
165
166 /*
167 * This is the list of dirty unwritten pages.
168 */
169 spinlock_t req_lock;
170 struct list_head dirty;
171 struct list_head commit;
172 struct radix_tree_root nfs_page_tree;
173
174 unsigned int ndirty,
175 ncommit,
176 npages;
177
178 /* Open contexts for shared mmap writes */
179 struct list_head open_files;
180
1da177e4 181#ifdef CONFIG_NFS_V4
e50a1c2e 182 struct nfs4_cached_acl *nfs4_acl;
1da177e4
LT		 183 /* NFSv4 state */
184 struct list_head open_states;
185 struct nfs_delegation *delegation;
186 int delegation_state;
187 struct rw_semaphore rwsem;
188#endif /* CONFIG_NFS_V4*/
1da177e4
LT		 189 struct inode vfs_inode;
190};
191
192/*
55296809 193 * Cache validity bit flags
1da177e4 194 */
55296809
CL		 195#define NFS_INO_INVALID_ATTR 0x0001 /* cached attrs are invalid */
196#define NFS_INO_INVALID_DATA 0x0002 /* cached data is invalid */
197#define NFS_INO_INVALID_ATIME 0x0004 /* cached atime is invalid */
198#define NFS_INO_INVALID_ACCESS 0x0008 /* cached access cred invalid */
199#define NFS_INO_INVALID_ACL 0x0010 /* cached acls are invalid */
200#define NFS_INO_REVAL_PAGECACHE 0x0020 /* must revalidate pagecache */
201
202/*
412d582e 203 * Bit offsets in flags field
55296809 204 */
412d582e
CL		 205#define NFS_INO_REVALIDATING (0) /* revalidating attrs */
206#define NFS_INO_ADVISE_RDPLUS (1) /* advise readdirplus */
207#define NFS_INO_STALE (2) /* possible stale inode */
1da177e4
LT		 208
209static inline struct nfs_inode *NFS_I(struct inode *inode)
210{
211 return container_of(inode, struct nfs_inode, vfs_inode);
212}
213#define NFS_SB(s) ((struct nfs_server *)(s->s_fs_info))
214
215#define NFS_FH(inode) (&NFS_I(inode)->fh)
216#define NFS_SERVER(inode) (NFS_SB(inode->i_sb))
217#define NFS_CLIENT(inode) (NFS_SERVER(inode)->client)
218#define NFS_PROTO(inode) (NFS_SERVER(inode)->rpc_ops)
219#define NFS_ADDR(inode) (RPC_PEERADDR(NFS_CLIENT(inode)))
220#define NFS_COOKIEVERF(inode) (NFS_I(inode)->cookieverf)
221#define NFS_READTIME(inode) (NFS_I(inode)->read_cache_jiffies)
222#define NFS_CHANGE_ATTR(inode) (NFS_I(inode)->change_attr)
223#define NFS_ATTRTIMEO(inode) (NFS_I(inode)->attrtimeo)
224#define NFS_MINATTRTIMEO(inode) \
225 (S_ISDIR(inode->i_mode)? NFS_SERVER(inode)->acdirmin \
226 : NFS_SERVER(inode)->acregmin)
227#define NFS_MAXATTRTIMEO(inode) \
228 (S_ISDIR(inode->i_mode)? NFS_SERVER(inode)->acdirmax \
229 : NFS_SERVER(inode)->acregmax)
230#define NFS_ATTRTIMEO_UPDATE(inode) (NFS_I(inode)->attrtimeo_timestamp)
231
232#define NFS_FLAGS(inode) (NFS_I(inode)->flags)
412d582e 233#define NFS_STALE(inode) (test_bit(NFS_INO_STALE, &NFS_FLAGS(inode)))
1da177e4
LT		 234
235#define NFS_FILEID(inode) (NFS_I(inode)->fileid)
236
237static inline int nfs_caches_unstable(struct inode *inode)
238{
239 return atomic_read(&NFS_I(inode)->data_updates) != 0;
240}
241
decf491f
TM		 242static inline void nfs_mark_for_revalidate(struct inode *inode)
243{
244 spin_lock(&inode->i_lock);
245 NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
246 spin_unlock(&inode->i_lock);
247}
248
1da177e4
LT		 249static inline void NFS_CACHEINV(struct inode *inode)
250{
decf491f
TM		 251 if (!nfs_caches_unstable(inode))
252 nfs_mark_for_revalidate(inode);
1da177e4
LT		 253}
254
255static inline int nfs_server_capable(struct inode *inode, int cap)
256{
257 return NFS_SERVER(inode)->caps & cap;
258}
259
260static inline int NFS_USE_READDIRPLUS(struct inode *inode)
261{
412d582e 262 return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_FLAGS(inode));
1da177e4
LT		 263}
264
265/**
266 * nfs_save_change_attribute - Returns the inode attribute change cookie
267 * @inode - pointer to inode
268 * The "change attribute" is updated every time we finish an operation
269 * that will result in a metadata change on the server.
270 */
271static inline long nfs_save_change_attribute(struct inode *inode)
272{
273 return NFS_I(inode)->cache_change_attribute;
274}
275
276/**
277 * nfs_verify_change_attribute - Detects NFS inode cache updates
278 * @inode - pointer to inode
279 * @chattr - previously saved change attribute
280 * Return "false" if metadata has been updated (or is in the process of
281 * being updated) since the change attribute was saved.
282 */
283static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long chattr)
284{
285 return !nfs_caches_unstable(inode)
913a70fc 286 && time_after_eq(chattr, NFS_I(inode)->cache_change_attribute);
1da177e4
LT		 287}
288
289/*
290 * linux/fs/nfs/inode.c
291 */
29884df0 292extern int nfs_sync_mapping(struct address_space *mapping);
1da177e4
LT		 293extern void nfs_zap_caches(struct inode *);
294extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *,
295 struct nfs_fattr *);
296extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *);
decf491f 297extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
1da177e4
LT		 298extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
299extern int nfs_permission(struct inode *, int, struct nameidata *);
300extern int nfs_access_get_cached(struct inode *, struct rpc_cred *, struct nfs_access_entry *);
301extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
302extern int nfs_open(struct inode *, struct file *);
303extern int nfs_release(struct inode *, struct file *);
304extern int nfs_attribute_timeout(struct inode *inode);
305extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode);
306extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *);
7d52e862 307extern void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping);
1da177e4 308extern int nfs_setattr(struct dentry *, struct iattr *);
65e4308d 309extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
1da177e4
LT		 310extern void nfs_begin_attr_update(struct inode *);
311extern void nfs_end_attr_update(struct inode *);
312extern void nfs_begin_data_update(struct inode *);
313extern void nfs_end_data_update(struct inode *);
1da177e4
LT		 314extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, struct rpc_cred *cred);
315extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
316extern void put_nfs_open_context(struct nfs_open_context *ctx);
317extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx);
d530838b 318extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode);
1da177e4
LT		 319extern void nfs_file_clear_open_context(struct file *filp);
320
321/* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
322extern u32 root_nfs_parse_addr(char *name); /*__init*/
323
0e574af1
TM		 324static inline void nfs_fattr_init(struct nfs_fattr *fattr)
325{
326 fattr->valid = 0;
33801147 327 fattr->time_start = jiffies;
0e574af1
TM		 328}
329
1da177e4
LT		 330/*
331 * linux/fs/nfs/file.c
332 */
333extern struct inode_operations nfs_file_inode_operations;
b7fa0554
AG		 334#ifdef CONFIG_NFS_V3
335extern struct inode_operations nfs3_file_inode_operations;
336#endif /* CONFIG_NFS_V3 */
1da177e4
LT		 337extern struct file_operations nfs_file_operations;
338extern struct address_space_operations nfs_file_aops;
339
340static inline struct rpc_cred *nfs_file_cred(struct file *file)
341{
342 if (file != NULL) {
343 struct nfs_open_context *ctx;
344
345 ctx = (struct nfs_open_context*)file->private_data;
346 return ctx->cred;
347 }
348 return NULL;
349}
350
b7fa0554
AG		 351/*
352 * linux/fs/nfs/xattr.c
353 */
354#ifdef CONFIG_NFS_V3_ACL
355extern ssize_t nfs3_listxattr(struct dentry *, char *, size_t);
356extern ssize_t nfs3_getxattr(struct dentry *, const char *, void *, size_t);
357extern int nfs3_setxattr(struct dentry *, const char *,
358 const void *, size_t, int);
359extern int nfs3_removexattr (struct dentry *, const char *name);
360#else
361# define nfs3_listxattr NULL
362# define nfs3_getxattr NULL
363# define nfs3_setxattr NULL
364# define nfs3_removexattr NULL
365#endif
366
1da177e4
LT		 367/*
368 * linux/fs/nfs/direct.c
369 */
370extern ssize_t nfs_direct_IO(int, struct kiocb *, const struct iovec *, loff_t,
371 unsigned long);
372extern ssize_t nfs_file_direct_read(struct kiocb *iocb, char __user *buf,
373 size_t count, loff_t pos);
374extern ssize_t nfs_file_direct_write(struct kiocb *iocb, const char __user *buf,
375 size_t count, loff_t pos);
376
377/*
378 * linux/fs/nfs/dir.c
379 */
380extern struct inode_operations nfs_dir_inode_operations;
b7fa0554
AG		 381#ifdef CONFIG_NFS_V3
382extern struct inode_operations nfs3_dir_inode_operations;
383#endif /* CONFIG_NFS_V3 */
1da177e4
LT		 384extern struct file_operations nfs_dir_operations;
385extern struct dentry_operations nfs_dentry_operations;
386
387extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr);
388
389/*
390 * linux/fs/nfs/symlink.c
391 */
392extern struct inode_operations nfs_symlink_inode_operations;
393
a72b4422
TM		 394/*
395 * linux/fs/nfs/sysctl.c
396 */
397#ifdef CONFIG_SYSCTL
398extern int nfs_register_sysctl(void);
399extern void nfs_unregister_sysctl(void);
400#else
7fd105e7 401#define nfs_register_sysctl() 0
a72b4422
TM		 402#define nfs_unregister_sysctl() do { } while(0)
403#endif
404
1da177e4
LT		 405/*
406 * linux/fs/nfs/unlink.c
407 */
408extern int nfs_async_unlink(struct dentry *);
409extern void nfs_complete_unlink(struct dentry *);
410
411/*
412 * linux/fs/nfs/write.c
413 */
414extern int nfs_writepage(struct page *page, struct writeback_control *wbc);
415extern int nfs_writepages(struct address_space *, struct writeback_control *);
416extern int nfs_flush_incompatible(struct file *file, struct page *page);
417extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
963d8fe5
TM		 418extern void nfs_writeback_done(struct rpc_task *task, void *data);
419extern void nfs_writedata_release(void *data);
1da177e4
LT		 420
421#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
963d8fe5
TM		 422extern void nfs_commit_done(struct rpc_task *, void *data);
423extern void nfs_commit_release(void *data);
1da177e4
LT		 424#endif
425
426/*
427 * Try to write back everything synchronously (but check the
428 * return value!)
429 */
430extern int nfs_sync_inode(struct inode *, unsigned long, unsigned int, int);
431#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
3da28eb1 432extern int nfs_commit_inode(struct inode *, int);
1da177e4
LT		 433#else
434static inline int
3da28eb1 435nfs_commit_inode(struct inode *inode, int how)
1da177e4
LT		 436{
437 return 0;
438}
439#endif
440
441static inline int
442nfs_have_writebacks(struct inode *inode)
443{
444 return NFS_I(inode)->npages != 0;
445}
446
447static inline int
448nfs_wb_all(struct inode *inode)
449{
450 int error = nfs_sync_inode(inode, 0, 0, FLUSH_WAIT);
451 return (error < 0) ? error : 0;
452}
453
454/*
455 * Write back all requests on one page - we do this before reading it.
456 */
457static inline int nfs_wb_page_priority(struct inode *inode, struct page* page, int how)
458{
459 int error = nfs_sync_inode(inode, page->index, 1,
460 how | FLUSH_WAIT | FLUSH_STABLE);
461 return (error < 0) ? error : 0;
462}
463
464static inline int nfs_wb_page(struct inode *inode, struct page* page)
465{
466 return nfs_wb_page_priority(inode, page, 0);
467}
468
469/*
470 * Allocate and free nfs_write_data structures
471 */
472extern mempool_t *nfs_wdata_mempool;
473
40859d7e 474static inline struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
1da177e4
LT		 475{
476 struct nfs_write_data *p = mempool_alloc(nfs_wdata_mempool, SLAB_NOFS);
40859d7e 477
1da177e4
LT		 478 if (p) {
479 memset(p, 0, sizeof(*p));
480 INIT_LIST_HEAD(&p->pages);
40859d7e
CL		 481 if (pagecount < NFS_PAGEVEC_SIZE)
482 p->pagevec = &p->page_array[0];
483 else {
484 size_t size = ++pagecount * sizeof(struct page *);
485 p->pagevec = kmalloc(size, GFP_NOFS);
486 if (p->pagevec) {
487 memset(p->pagevec, 0, size);
488 } else {
489 mempool_free(p, nfs_wdata_mempool);
490 p = NULL;
491 }
492 }
1da177e4
LT		 493 }
494 return p;
495}
496
497static inline void nfs_writedata_free(struct nfs_write_data *p)
498{
40859d7e
CL		 499 if (p && (p->pagevec != &p->page_array[0]))
500 kfree(p->pagevec);
1da177e4
LT		 501 mempool_free(p, nfs_wdata_mempool);
502}
503
1da177e4
LT		 504/*
505 * linux/fs/nfs/read.c
506 */
507extern int nfs_readpage(struct file *, struct page *);
508extern int nfs_readpages(struct file *, struct address_space *,
509 struct list_head *, unsigned);
963d8fe5
TM		 510extern void nfs_readpage_result(struct rpc_task *, void *);
511extern void nfs_readdata_release(void *data);
512
1da177e4
LT		 513
514/*
515 * Allocate and free nfs_read_data structures
516 */
517extern mempool_t *nfs_rdata_mempool;
518
40859d7e 519static inline struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
1da177e4
LT		 520{
521 struct nfs_read_data *p = mempool_alloc(nfs_rdata_mempool, SLAB_NOFS);
40859d7e
CL		 522
523 if (p) {
1da177e4 524 memset(p, 0, sizeof(*p));
40859d7e
CL		 525 INIT_LIST_HEAD(&p->pages);
526 if (pagecount < NFS_PAGEVEC_SIZE)
527 p->pagevec = &p->page_array[0];
528 else {
529 size_t size = ++pagecount * sizeof(struct page *);
530 p->pagevec = kmalloc(size, GFP_NOFS);
531 if (p->pagevec) {
532 memset(p->pagevec, 0, size);
533 } else {
534 mempool_free(p, nfs_rdata_mempool);
535 p = NULL;
536 }
537 }
538 }
1da177e4
LT		 539 return p;
540}
541
542static inline void nfs_readdata_free(struct nfs_read_data *p)
543{
40859d7e
CL		 544 if (p && (p->pagevec != &p->page_array[0]))
545 kfree(p->pagevec);
1da177e4
LT		 546 mempool_free(p, nfs_rdata_mempool);
547}
548
b7fa0554
AG		 549/*
550 * linux/fs/nfs3proc.c
551 */
552#ifdef CONFIG_NFS_V3_ACL
553extern struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type);
554extern int nfs3_proc_setacl(struct inode *inode, int type,
555 struct posix_acl *acl);
055ffbea
AG		 556extern int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode,
557 mode_t mode);
5c6a9f7d 558extern void nfs3_forget_cached_acls(struct inode *inode);
055ffbea
AG		 559#else
560static inline int nfs3_proc_set_default_acl(struct inode *dir,
561 struct inode *inode,
562 mode_t mode)
563{
564 return 0;
565}
5c6a9f7d
AG		 566
567static inline void nfs3_forget_cached_acls(struct inode *inode)
568{
569}
b7fa0554
AG		 570#endif /* CONFIG_NFS_V3_ACL */
571
1da177e4
LT		 572/*
573 * linux/fs/mount_clnt.c
574 * (Used only by nfsroot module)
575 */
576extern int nfsroot_mount(struct sockaddr_in *, char *, struct nfs_fh *,
577 int, int);
578
579/*
580 * inline functions
581 */
582
583static inline loff_t
584nfs_size_to_loff_t(__u64 size)
585{
586 loff_t maxsz = (((loff_t) ULONG_MAX) << PAGE_CACHE_SHIFT) + PAGE_CACHE_SIZE - 1;
587 if (size > maxsz)
588 return maxsz;
589 return (loff_t) size;
590}
591
592static inline ino_t
593nfs_fileid_to_ino_t(u64 fileid)
594{
595 ino_t ino = (ino_t) fileid;
596 if (sizeof(ino_t) < sizeof(u64))
597 ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
598 return ino;
599}
600
601/* NFS root */
602
603extern void * nfs_root_data(void);
604
605#define nfs_wait_event(clnt, wq, condition) \
606({ \
607 int __retval = 0; \
608 if (clnt->cl_intr) { \
609 sigset_t oldmask; \
610 rpc_clnt_sigmask(clnt, &oldmask); \
611 __retval = wait_event_interruptible(wq, condition); \
612 rpc_clnt_sigunmask(clnt, &oldmask); \
613 } else \
614 wait_event(wq, condition); \
615 __retval; \
616})
617
618#define NFS_JUKEBOX_RETRY_TIME (5 * HZ)
619
1da177e4
LT		 620#endif /* __KERNEL__ */
621
622/*
623 * NFS debug flags
624 */
625#define NFSDBG_VFS 0x0001
626#define NFSDBG_DIRCACHE 0x0002
627#define NFSDBG_LOOKUPCACHE 0x0004
628#define NFSDBG_PAGECACHE 0x0008
629#define NFSDBG_PROC 0x0010
630#define NFSDBG_XDR 0x0020
631#define NFSDBG_FILE 0x0040
632#define NFSDBG_ROOT 0x0080
633#define NFSDBG_CALLBACK 0x0100
634#define NFSDBG_ALL 0xFFFF
635
636#ifdef __KERNEL__
637# undef ifdebug
638# ifdef NFS_DEBUG
639# define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac))
640# else
641# define ifdebug(fac) if (0)
642# endif
643#endif /* __KERNEL */
644
645#endif
Clone of davem's net-next-2.6 tree