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crash: move crashkernel parsing and vmcore related code under CONFIG_CRASH_CORE
[linux-2.6-block.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 */
1da177e4
LT		 8#ifndef _LINUX_NFS_FS_H
9#define _LINUX_NFS_FS_H
10
607ca46e 11#include <uapi/linux/nfs_fs.h>
03bf4b70 12
1da177e4 13
e27d359e
TM		 14/*
15 * Enable dprintk() debugging support for nfs client.
16 */
17#ifdef CONFIG_NFS_DEBUG
18# define NFS_DEBUG
19#endif
20
7f1cbe51
DW		 21#include <linux/in.h>
22#include <linux/mm.h>
23#include <linux/pagemap.h>
1c3c07e9 24#include <linux/rbtree.h>
7f1cbe51
DW		 25#include <linux/rwsem.h>
26#include <linux/wait.h>
27
28#include <linux/sunrpc/debug.h>
29#include <linux/sunrpc/auth.h>
30#include <linux/sunrpc/clnt.h>
31
32#include <linux/nfs.h>
33#include <linux/nfs2.h>
34#include <linux/nfs3.h>
35#include <linux/nfs4.h>
36#include <linux/nfs_xdr.h>
7f1cbe51
DW		 37#include <linux/nfs_fs_sb.h>
38
7f1cbe51
DW		 39#include <linux/mempool.h>
40
41/*
42 * These are the default flags for swap requests
43 */
44#define NFS_RPC_SWAPFLAGS (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS)
45
1da177e4
LT		 46/*
47 * NFSv3/v4 Access mode cache entry
48 */
49struct nfs_access_entry {
1c3c07e9 50 struct rb_node rb_node;
cfcea3e8 51 struct list_head lru;
1da177e4
LT		 52 unsigned long jiffies;
53 struct rpc_cred * cred;
54 int mask;
f682a398 55 struct rcu_head rcu_head;
1da177e4
LT		 56};
57
f11ac8db
TM		 58struct nfs_lock_context {
59 atomic_t count;
60 struct list_head list;
61 struct nfs_open_context *open_context;
d51fdb87 62 fl_owner_t lockowner;
210c7c17 63 atomic_t io_count;
f11ac8db
TM		 64};
65
1da177e4
LT		 66struct nfs4_state;
67struct nfs_open_context {
f11ac8db 68 struct nfs_lock_context lock_context;
532d4def 69 fl_owner_t flock_owner;
3d4ff43d 70 struct dentry *dentry;
1da177e4
LT		 71 struct rpc_cred *cred;
72 struct nfs4_state *state;
dc0b027d 73 fmode_t mode;
7b159fc1
TM		 74
75 unsigned long flags;
76#define NFS_CONTEXT_ERROR_WRITE (0)
05990d1b 77#define NFS_CONTEXT_RESEND_WRITES (1)
c58c8441 78#define NFS_CONTEXT_BAD (2)
1da177e4
LT		 79 int error;
80
81 struct list_head list;
82be417a 82 struct nfs4_threshold *mdsthreshold;
480c2006 83};
00a92642 84
480c2006 85struct nfs_open_dir_context {
311324ad 86 struct list_head list;
480c2006 87 struct rpc_cred *cred;
0c030806 88 unsigned long attr_gencount;
00a92642 89 __u64 dir_cookie;
8ef2ce3e 90 __u64 dup_cookie;
0c030806 91 signed char duped;
1da177e4
LT		 92};
93
94/*
95 * NFSv4 delegation
96 */
97struct nfs_delegation;
98
5c6a9f7d
AG		 99struct posix_acl;
100
1da177e4
LT		 101/*
102 * nfs fs inode data in memory
103 */
104struct nfs_inode {
105 /*
106 * The 64bit 'inode number'
107 */
108 __u64 fileid;
109
110 /*
111 * NFS file handle
112 */
113 struct nfs_fh fh;
114
115 /*
116 * Various flags
117 */
412d582e
CL		 118 unsigned long flags; /* atomic bit ops */
119 unsigned long cache_validity; /* bit mask */
1da177e4
LT		 120
121 /*
24bd68f4 122 * read_cache_jiffies is when we started read-caching this inode.
1da177e4
LT		 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 *
64672d55
PS		 130 * jiffies - read_cache_jiffies >= attrtimeo
131 *
132 * Please note the comparison is greater than or equal
133 * so that zero timeout values can be specified.
1da177e4 134 */
1da177e4
LT		 135 unsigned long read_cache_jiffies;
136 unsigned long attrtimeo;
137 unsigned long attrtimeo_timestamp;
1da177e4 138
4704f0e2 139 unsigned long attr_gencount;
1da177e4
LT		 140 /* "Generation counter" for the attribute cache. This is
141 * bumped whenever we update the metadata on the
142 * server.
143 */
144 unsigned long cache_change_attribute;
1da177e4 145
1c3c07e9 146 struct rb_root access_cache;
cfcea3e8
TM		 147 struct list_head access_cache_entry_lru;
148 struct list_head access_cache_inode_lru;
1da177e4
LT		 149
150 /*
151 * This is the cookie verifier used for NFSv3 readdir
152 * operations
153 */
bc4785cd 154 __be32 cookieverf[2];
1da177e4 155
cb1410c7 156 unsigned long nrequests;
ea2cf228 157 struct nfs_mds_commit_info commit_info;
1da177e4
LT		 158
159 /* Open contexts for shared mmap writes */
160 struct list_head open_files;
161
884be175
AV		 162 /* Readers: in-flight sillydelete RPC calls */
163 /* Writers: rmdir */
164 struct rw_semaphore rmdir_sem;
565277f6 165
89d77c8f 166#if IS_ENABLED(CONFIG_NFS_V4)
e50a1c2e 167 struct nfs4_cached_acl *nfs4_acl;
1da177e4
LT		 168 /* NFSv4 state */
169 struct list_head open_states;
5b22216e 170 struct nfs_delegation __rcu *delegation;
1da177e4 171 struct rw_semaphore rwsem;
e5e94017
BH		 172
173 /* pNFS layout information */
174 struct pnfs_layout_hdr *layout;
1da177e4 175#endif /* CONFIG_NFS_V4*/
2701d086
AA		 176 /* how many bytes have been written/read and how many bytes queued up */
177 __u64 write_io;
178 __u64 read_io;
ef79c097
DH		 179#ifdef CONFIG_NFS_FSCACHE
180 struct fscache_cookie *fscache;
181#endif
1da177e4
LT		 182 struct inode vfs_inode;
183};
184
185/*
55296809 186 * Cache validity bit flags
1da177e4 187 */
55296809
CL		 188#define NFS_INO_INVALID_ATTR 0x0001 /* cached attrs are invalid */
189#define NFS_INO_INVALID_DATA 0x0002 /* cached data is invalid */
190#define NFS_INO_INVALID_ATIME 0x0004 /* cached atime is invalid */
191#define NFS_INO_INVALID_ACCESS 0x0008 /* cached access cred invalid */
192#define NFS_INO_INVALID_ACL 0x0010 /* cached acls are invalid */
193#define NFS_INO_REVAL_PAGECACHE 0x0020 /* must revalidate pagecache */
412c77ce 194#define NFS_INO_REVAL_FORCED 0x0040 /* force revalidation ignoring a delegation */
aa9c2669 195#define NFS_INO_INVALID_LABEL 0x0080 /* cached label is invalid */
55296809
CL		 196
197/*
412d582e 198 * Bit offsets in flags field
55296809 199 */
691beb13
TM		 200#define NFS_INO_ADVISE_RDPLUS (0) /* advise readdirplus */
201#define NFS_INO_STALE (1) /* possible stale inode */
202#define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */
d529ef83 203#define NFS_INO_INVALIDATING (3) /* inode is being invalidated */
ef79c097
DH		 204#define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */
205#define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */
863a3c6c 206#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */
92407e75 207#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */
1bfe3b25 208#define NFS_INO_LAYOUTSTATS (11) /* layoutstats inflight */
a5864c99 209#define NFS_INO_ODIRECT (12) /* I/O setting is O_DIRECT */
1da177e4 210
99fadcd7 211static inline struct nfs_inode *NFS_I(const struct inode *inode)
1da177e4
LT		 212{
213 return container_of(inode, struct nfs_inode, vfs_inode);
214}
99fadcd7
BH		 215
216static inline struct nfs_server *NFS_SB(const struct super_block *s)
217{
218 return (struct nfs_server *)(s->s_fs_info);
219}
220
221static inline struct nfs_fh *NFS_FH(const struct inode *inode)
222{
223 return &NFS_I(inode)->fh;
224}
225
226static inline struct nfs_server *NFS_SERVER(const struct inode *inode)
227{
228 return NFS_SB(inode->i_sb);
229}
230
231static inline struct rpc_clnt *NFS_CLIENT(const struct inode *inode)
232{
233 return NFS_SERVER(inode)->client;
234}
235
236static inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode)
237{
238 return NFS_SERVER(inode)->nfs_client->rpc_ops;
239}
240
99fadcd7
BH		 241static inline unsigned NFS_MINATTRTIMEO(const struct inode *inode)
242{
243 struct nfs_server *nfss = NFS_SERVER(inode);
244 return S_ISDIR(inode->i_mode) ? nfss->acdirmin : nfss->acregmin;
245}
246
247static inline unsigned NFS_MAXATTRTIMEO(const struct inode *inode)
248{
249 struct nfs_server *nfss = NFS_SERVER(inode);
250 return S_ISDIR(inode->i_mode) ? nfss->acdirmax : nfss->acregmax;
251}
252
253static inline int NFS_STALE(const struct inode *inode)
254{
255 return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
256}
257
f1fe29b4 258static inline struct fscache_cookie *nfs_i_fscache(struct inode *inode)
ef79c097 259{
f1fe29b4
DH		 260#ifdef CONFIG_NFS_FSCACHE
261 return NFS_I(inode)->fscache;
262#else
263 return NULL;
264#endif
ef79c097
DH		 265}
266
99fadcd7
BH		 267static inline __u64 NFS_FILEID(const struct inode *inode)
268{
269 return NFS_I(inode)->fileid;
270}
271
272static inline void set_nfs_fileid(struct inode *inode, __u64 fileid)
273{
274 NFS_I(inode)->fileid = fileid;
275}
1da177e4 276
decf491f
TM		 277static inline void nfs_mark_for_revalidate(struct inode *inode)
278{
38478b24
TM		 279 struct nfs_inode *nfsi = NFS_I(inode);
280
decf491f 281 spin_lock(&inode->i_lock);
115c48d7
TM		 282 nfsi->cache_validity |= NFS_INO_INVALID_ATTR |
283 NFS_INO_REVAL_PAGECACHE |
284 NFS_INO_INVALID_ACCESS |
285 NFS_INO_INVALID_ACL;
f3821110 286 if (S_ISDIR(inode->i_mode))
115c48d7 287 nfsi->cache_validity |= NFS_INO_INVALID_DATA;
decf491f
TM		 288 spin_unlock(&inode->i_lock);
289}
290
1da177e4
LT		 291static inline int nfs_server_capable(struct inode *inode, int cap)
292{
293 return NFS_SERVER(inode)->caps & cap;
294}
295
d75340cc
TM		 296static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
297{
298 dentry->d_time = verf;
299}
300
1da177e4
LT		 301/**
302 * nfs_save_change_attribute - Returns the inode attribute change cookie
8edb0182 303 * @dir - pointer to parent directory inode
1da177e4
LT		 304 * The "change attribute" is updated every time we finish an operation
305 * that will result in a metadata change on the server.
306 */
8edb0182 307static inline unsigned long nfs_save_change_attribute(struct inode *dir)
1da177e4 308{
8edb0182 309 return NFS_I(dir)->cache_change_attribute;
1da177e4
LT		 310}
311
312/**
4b841736
TM		 313 * nfs_verify_change_attribute - Detects NFS remote directory changes
314 * @dir - pointer to parent directory inode
1da177e4 315 * @chattr - previously saved change attribute
4b841736
TM		 316 * Return "false" if the verifiers doesn't match the change attribute.
317 * This would usually indicate that the directory contents have changed on
318 * the server, and that any dentries need revalidating.
1da177e4 319 */
4b841736 320static inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr)
1da177e4 321{
4b841736 322 return chattr == NFS_I(dir)->cache_change_attribute;
1da177e4
LT		 323}
324
325/*
326 * linux/fs/nfs/inode.c
327 */
29884df0 328extern int nfs_sync_mapping(struct address_space *mapping);
cd9ae2b6 329extern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping);
1da177e4 330extern void nfs_zap_caches(struct inode *);
c4812998 331extern void nfs_invalidate_atime(struct inode *);
1da177e4 332extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *,
1775fd3e 333 struct nfs_fattr *, struct nfs4_label *);
1da177e4 334extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *);
decf491f 335extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
70ca8852 336extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr);
a08a8cd3 337extern int nfs_post_op_update_inode_force_wcc_locked(struct inode *inode, struct nfs_fattr *fattr);
a528d35e 338extern int nfs_getattr(const struct path *, struct kstat *, u32, unsigned int);
6168f62c
WAA		 339extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
340extern void nfs_access_set_mask(struct nfs_access_entry *, u32);
10556cb2 341extern int nfs_permission(struct inode *, int);
1da177e4 342extern int nfs_open(struct inode *, struct file *);
43f291cd 343extern int nfs_attribute_cache_expired(struct inode *inode);
1da177e4
LT		 344extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode);
345extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *);
1cd9cb05 346extern bool nfs_mapping_need_revalidate_inode(struct inode *inode);
44b11874 347extern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping);
0d0def49 348extern int nfs_revalidate_mapping_rcu(struct inode *inode);
1da177e4 349extern int nfs_setattr(struct dentry *, struct iattr *);
f044636d 350extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr, struct nfs_fattr *);
aa9c2669
DQ		 351extern void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
352 struct nfs4_label *label);
1da177e4
LT		 353extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
354extern void put_nfs_open_context(struct nfs_open_context *ctx);
dc0b027d 355extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
532d4def 356extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode, struct file *filp);
c45ffdd2 357extern void nfs_inode_attach_open_context(struct nfs_open_context *ctx);
cd9a1c0e 358extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx);
aff8d8dc 359extern void nfs_file_clear_open_context(struct file *flip);
f11ac8db
TM		 360extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx);
361extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx);
f43bf0be 362extern u64 nfs_compat_user_ino64(u64 fileid);
4704f0e2 363extern void nfs_fattr_init(struct nfs_fattr *fattr);
140e049c 364extern void nfs_fattr_set_barrier(struct nfs_fattr *fattr);
56463e50 365extern unsigned long nfs_inc_attr_generation_counter(void);
1da177e4 366
2d36bfde
TM		 367extern struct nfs_fattr *nfs_alloc_fattr(void);
368
369static inline void nfs_free_fattr(const struct nfs_fattr *fattr)
370{
371 kfree(fattr);
372}
373
374extern struct nfs_fh *nfs_alloc_fhandle(void);
375
376static inline void nfs_free_fhandle(const struct nfs_fh *fh)
377{
378 kfree(fh);
379}
380
e27d359e 381#ifdef NFS_DEBUG
d8e0539e
WAA		 382extern u32 _nfs_display_fhandle_hash(const struct nfs_fh *fh);
383static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh)
384{
385 return _nfs_display_fhandle_hash(fh);
386}
20d27e92
CL		 387extern void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption);
388#define nfs_display_fhandle(fh, caption) \
389 do { \
390 if (unlikely(nfs_debug & NFSDBG_FACILITY)) \
391 _nfs_display_fhandle(fh, caption); \
392 } while (0)
393#else
d8e0539e
WAA		 394static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh)
395{
9304a812 396 return 0;
d8e0539e 397}
20d27e92
CL		 398static inline void nfs_display_fhandle(const struct nfs_fh *fh,
399 const char *caption)
400{
401}
402#endif
403
56463e50
CL		 404/*
405 * linux/fs/nfs/nfsroot.c
406 */
407extern int nfs_root_data(char **root_device, char **root_data); /*__init*/
1da177e4 408/* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
5a874db4 409extern __be32 root_nfs_parse_addr(char *name); /*__init*/
0e574af1 410
1da177e4
LT		 411/*
412 * linux/fs/nfs/file.c
413 */
4b6f5d20 414extern const struct file_operations nfs_file_operations;
89d77c8f 415#if IS_ENABLED(CONFIG_NFS_V4)
1788ea6e
JL		 416extern const struct file_operations nfs4_file_operations;
417#endif /* CONFIG_NFS_V4 */
f5e54d6e 418extern const struct address_space_operations nfs_file_aops;
11de3b11 419extern const struct address_space_operations nfs_dir_aops;
1da177e4 420
c03025d5
TM		 421static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
422{
423 return filp->private_data;
424}
425
1da177e4
LT		 426static inline struct rpc_cred *nfs_file_cred(struct file *file)
427{
504e5189
NB		 428 if (file != NULL) {
429 struct nfs_open_context *ctx =
430 nfs_file_open_context(file);
431 if (ctx)
432 return ctx->cred;
433 }
1da177e4
LT		 434 return NULL;
435}
436
437/*
438 * linux/fs/nfs/direct.c
439 */
c8b8e32d 440extern ssize_t nfs_direct_IO(struct kiocb *, struct iov_iter *);
027445c3 441extern ssize_t nfs_file_direct_read(struct kiocb *iocb,
c8b8e32d 442 struct iov_iter *iter);
027445c3 443extern ssize_t nfs_file_direct_write(struct kiocb *iocb,
65a4a1ca 444 struct iov_iter *iter);
1da177e4
LT		 445
446/*
447 * linux/fs/nfs/dir.c
448 */
4b6f5d20 449extern const struct file_operations nfs_dir_operations;
f786aa90 450extern const struct dentry_operations nfs_dentry_operations;
1da177e4 451
bfc69a45 452extern void nfs_force_lookup_revalidate(struct inode *dir);
1775fd3e
DQ		 453extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh,
454 struct nfs_fattr *fattr, struct nfs4_label *label);
af22f94a
TM		 455extern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags);
456extern void nfs_access_zap_cache(struct inode *inode);
1da177e4
LT		 457
458/*
459 * linux/fs/nfs/symlink.c
460 */
c5ef1c42 461extern const struct inode_operations nfs_symlink_inode_operations;
1da177e4 462
a72b4422
TM		 463/*
464 * linux/fs/nfs/sysctl.c
465 */
466#ifdef CONFIG_SYSCTL
467extern int nfs_register_sysctl(void);
468extern void nfs_unregister_sysctl(void);
469#else
7fd105e7 470#define nfs_register_sysctl() 0
a72b4422
TM		 471#define nfs_unregister_sysctl() do { } while(0)
472#endif
473
55a97593
TM		 474/*
475 * linux/fs/nfs/namespace.c
476 */
c5ef1c42
AV		 477extern const struct inode_operations nfs_mountpoint_inode_operations;
478extern const struct inode_operations nfs_referral_inode_operations;
51d8fa6a
TM		 479extern int nfs_mountpoint_expiry_timeout;
480extern void nfs_release_automount_timer(void);
55a97593 481
1da177e4
LT		 482/*
483 * linux/fs/nfs/unlink.c
484 */
e4eff1a6 485extern void nfs_complete_unlink(struct dentry *dentry, struct inode *);
1da177e4
LT		 486
487/*
488 * linux/fs/nfs/write.c
489 */
89a09141 490extern int nfs_congestion_kb;
1da177e4
LT		 491extern int nfs_writepage(struct page *page, struct writeback_control *wbc);
492extern int nfs_writepages(struct address_space *, struct writeback_control *);
493extern int nfs_flush_incompatible(struct file *file, struct page *page);
494extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
1da177e4
LT		 495
496/*
497 * Try to write back everything synchronously (but check the
498 * return value!)
499 */
9e1681c2 500extern int nfs_sync_inode(struct inode *inode);
1c75950b 501extern int nfs_wb_all(struct inode *inode);
d6c843b9 502extern int nfs_wb_single_page(struct inode *inode, struct page *page, bool launder);
1b3b4a1a 503extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
b608b283 504extern int nfs_commit_inode(struct inode *, int);
0b7c0153
FI		 505extern struct nfs_commit_data *nfs_commitdata_alloc(void);
506extern void nfs_commit_free(struct nfs_commit_data *data);
1da177e4 507
d6c843b9
PT		 508static inline int
509nfs_wb_launder_page(struct inode *inode, struct page *page)
510{
511 return nfs_wb_single_page(inode, page, true);
512}
513
514static inline int
515nfs_wb_page(struct inode *inode, struct page *page)
516{
517 return nfs_wb_single_page(inode, page, false);
518}
519
1da177e4
LT		 520static inline int
521nfs_have_writebacks(struct inode *inode)
522{
cb1410c7 523 return NFS_I(inode)->nrequests != 0;
1da177e4
LT		 524}
525
1da177e4
LT		 526/*
527 * linux/fs/nfs/read.c
528 */
529extern int nfs_readpage(struct file *, struct page *);
530extern int nfs_readpages(struct file *, struct address_space *,
531 struct list_head *, unsigned);
f42b293d
DH		 532extern int nfs_readpage_async(struct nfs_open_context *, struct inode *,
533 struct page *);
963d8fe5 534
1da177e4
LT		 535/*
536 * inline functions
537 */
538
433c9237 539static inline loff_t nfs_size_to_loff_t(__u64 size)
1da177e4 540{
50ab8ec7 541 return min_t(u64, size, OFFSET_MAX);
1da177e4
LT		 542}
543
544static inline ino_t
545nfs_fileid_to_ino_t(u64 fileid)
546{
547 ino_t ino = (ino_t) fileid;
548 if (sizeof(ino_t) < sizeof(u64))
549 ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
550 return ino;
551}
552
1da177e4
LT		 553#define NFS_JUKEBOX_RETRY_TIME (5 * HZ)
554
4dc2eaec 555
1da177e4
LT		 556# undef ifdebug
557# ifdef NFS_DEBUG
558# define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac))
6f00866d 559# define NFS_IFDEBUG(x) x
1da177e4
LT		 560# else
561# define ifdebug(fac) if (0)
6f00866d 562# define NFS_IFDEBUG(x)
1da177e4 563# endif
1da177e4 564#endif
Linux 6.x block layer and io_uring tree(s)