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NFS: Set an attribute barrier on all updates
[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
2a369153
TM		 58struct nfs_lockowner {
59 fl_owner_t l_owner;
60 pid_t l_pid;
61};
62
577b4232
TM		 63#define NFS_IO_INPROGRESS 0
64struct nfs_io_counter {
65 unsigned long flags;
66 atomic_t io_count;
67};
68
f11ac8db
TM		 69struct nfs_lock_context {
70 atomic_t count;
71 struct list_head list;
72 struct nfs_open_context *open_context;
2a369153 73 struct nfs_lockowner lockowner;
577b4232 74 struct nfs_io_counter io_count;
f11ac8db
TM		 75};
76
1da177e4
LT		 77struct nfs4_state;
78struct nfs_open_context {
f11ac8db 79 struct nfs_lock_context lock_context;
3d4ff43d 80 struct dentry *dentry;
1da177e4
LT		 81 struct rpc_cred *cred;
82 struct nfs4_state *state;
dc0b027d 83 fmode_t mode;
7b159fc1
TM		 84
85 unsigned long flags;
86#define NFS_CONTEXT_ERROR_WRITE (0)
05990d1b 87#define NFS_CONTEXT_RESEND_WRITES (1)
c58c8441 88#define NFS_CONTEXT_BAD (2)
1da177e4
LT		 89 int error;
90
91 struct list_head list;
82be417a 92 struct nfs4_threshold *mdsthreshold;
480c2006 93};
00a92642 94
480c2006 95struct nfs_open_dir_context {
311324ad 96 struct list_head list;
480c2006 97 struct rpc_cred *cred;
0c030806 98 unsigned long attr_gencount;
00a92642 99 __u64 dir_cookie;
8ef2ce3e 100 __u64 dup_cookie;
0c030806 101 signed char duped;
1da177e4
LT		 102};
103
104/*
105 * NFSv4 delegation
106 */
107struct nfs_delegation;
108
5c6a9f7d
AG		 109struct posix_acl;
110
1da177e4
LT		 111/*
112 * nfs fs inode data in memory
113 */
114struct nfs_inode {
115 /*
116 * The 64bit 'inode number'
117 */
118 __u64 fileid;
119
120 /*
121 * NFS file handle
122 */
123 struct nfs_fh fh;
124
125 /*
126 * Various flags
127 */
412d582e
CL		 128 unsigned long flags; /* atomic bit ops */
129 unsigned long cache_validity; /* bit mask */
1da177e4
LT		 130
131 /*
24bd68f4 132 * read_cache_jiffies is when we started read-caching this inode.
1da177e4
LT		 133 * attrtimeo is for how long the cached information is assumed
134 * to be valid. A successful attribute revalidation doubles
135 * attrtimeo (up to acregmax/acdirmax), a failure resets it to
136 * acregmin/acdirmin.
137 *
138 * We need to revalidate the cached attrs for this inode if
139 *
64672d55
PS		 140 * jiffies - read_cache_jiffies >= attrtimeo
141 *
142 * Please note the comparison is greater than or equal
143 * so that zero timeout values can be specified.
1da177e4 144 */
1da177e4
LT		 145 unsigned long read_cache_jiffies;
146 unsigned long attrtimeo;
147 unsigned long attrtimeo_timestamp;
1da177e4 148
4704f0e2 149 unsigned long attr_gencount;
1da177e4
LT		 150 /* "Generation counter" for the attribute cache. This is
151 * bumped whenever we update the metadata on the
152 * server.
153 */
154 unsigned long cache_change_attribute;
1da177e4 155
1c3c07e9 156 struct rb_root access_cache;
cfcea3e8
TM		 157 struct list_head access_cache_entry_lru;
158 struct list_head access_cache_inode_lru;
1da177e4
LT		 159
160 /*
161 * This is the cookie verifier used for NFSv3 readdir
162 * operations
163 */
bc4785cd 164 __be32 cookieverf[2];
1da177e4 165
cb1410c7 166 unsigned long nrequests;
ea2cf228 167 struct nfs_mds_commit_info commit_info;
1da177e4
LT		 168
169 /* Open contexts for shared mmap writes */
170 struct list_head open_files;
171
565277f6
TM		 172 /* Number of in-flight sillydelete RPC calls */
173 atomic_t silly_count;
174 /* List of deferred sillydelete requests */
175 struct hlist_head silly_list;
176 wait_queue_head_t waitqueue;
177
89d77c8f 178#if IS_ENABLED(CONFIG_NFS_V4)
e50a1c2e 179 struct nfs4_cached_acl *nfs4_acl;
1da177e4
LT		 180 /* NFSv4 state */
181 struct list_head open_states;
5b22216e 182 struct nfs_delegation __rcu *delegation;
1da177e4 183 struct rw_semaphore rwsem;
e5e94017
BH		 184
185 /* pNFS layout information */
186 struct pnfs_layout_hdr *layout;
1da177e4 187#endif /* CONFIG_NFS_V4*/
2701d086
AA		 188 /* how many bytes have been written/read and how many bytes queued up */
189 __u64 write_io;
190 __u64 read_io;
ef79c097
DH		 191#ifdef CONFIG_NFS_FSCACHE
192 struct fscache_cookie *fscache;
193#endif
1da177e4
LT		 194 struct inode vfs_inode;
195};
196
197/*
55296809 198 * Cache validity bit flags
1da177e4 199 */
55296809
CL		 200#define NFS_INO_INVALID_ATTR 0x0001 /* cached attrs are invalid */
201#define NFS_INO_INVALID_DATA 0x0002 /* cached data is invalid */
202#define NFS_INO_INVALID_ATIME 0x0004 /* cached atime is invalid */
203#define NFS_INO_INVALID_ACCESS 0x0008 /* cached access cred invalid */
204#define NFS_INO_INVALID_ACL 0x0010 /* cached acls are invalid */
205#define NFS_INO_REVAL_PAGECACHE 0x0020 /* must revalidate pagecache */
412c77ce 206#define NFS_INO_REVAL_FORCED 0x0040 /* force revalidation ignoring a delegation */
aa9c2669 207#define NFS_INO_INVALID_LABEL 0x0080 /* cached label is invalid */
55296809
CL		 208
209/*
412d582e 210 * Bit offsets in flags field
55296809 211 */
691beb13
TM		 212#define NFS_INO_ADVISE_RDPLUS (0) /* advise readdirplus */
213#define NFS_INO_STALE (1) /* possible stale inode */
214#define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */
d529ef83 215#define NFS_INO_INVALIDATING (3) /* inode is being invalidated */
72cb77f4 216#define NFS_INO_FLUSHING (4) /* inode is flushing out data */
ef79c097
DH		 217#define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */
218#define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */
71d0a611 219#define NFS_INO_COMMIT (7) /* inode is committing unstable writes */
863a3c6c 220#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */
92407e75 221#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */
1da177e4 222
99fadcd7 223static inline struct nfs_inode *NFS_I(const struct inode *inode)
1da177e4
LT		 224{
225 return container_of(inode, struct nfs_inode, vfs_inode);
226}
99fadcd7
BH		 227
228static inline struct nfs_server *NFS_SB(const struct super_block *s)
229{
230 return (struct nfs_server *)(s->s_fs_info);
231}
232
233static inline struct nfs_fh *NFS_FH(const struct inode *inode)
234{
235 return &NFS_I(inode)->fh;
236}
237
238static inline struct nfs_server *NFS_SERVER(const struct inode *inode)
239{
240 return NFS_SB(inode->i_sb);
241}
242
243static inline struct rpc_clnt *NFS_CLIENT(const struct inode *inode)
244{
245 return NFS_SERVER(inode)->client;
246}
247
248static inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode)
249{
250 return NFS_SERVER(inode)->nfs_client->rpc_ops;
251}
252
99fadcd7
BH		 253static inline unsigned NFS_MINATTRTIMEO(const struct inode *inode)
254{
255 struct nfs_server *nfss = NFS_SERVER(inode);
256 return S_ISDIR(inode->i_mode) ? nfss->acdirmin : nfss->acregmin;
257}
258
259static inline unsigned NFS_MAXATTRTIMEO(const struct inode *inode)
260{
261 struct nfs_server *nfss = NFS_SERVER(inode);
262 return S_ISDIR(inode->i_mode) ? nfss->acdirmax : nfss->acregmax;
263}
264
265static inline int NFS_STALE(const struct inode *inode)
266{
267 return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
268}
269
f1fe29b4 270static inline struct fscache_cookie *nfs_i_fscache(struct inode *inode)
ef79c097 271{
f1fe29b4
DH		 272#ifdef CONFIG_NFS_FSCACHE
273 return NFS_I(inode)->fscache;
274#else
275 return NULL;
276#endif
ef79c097
DH		 277}
278
99fadcd7
BH		 279static inline __u64 NFS_FILEID(const struct inode *inode)
280{
281 return NFS_I(inode)->fileid;
282}
283
284static inline void set_nfs_fileid(struct inode *inode, __u64 fileid)
285{
286 NFS_I(inode)->fileid = fileid;
287}
1da177e4 288
decf491f
TM		 289static inline void nfs_mark_for_revalidate(struct inode *inode)
290{
38478b24
TM		 291 struct nfs_inode *nfsi = NFS_I(inode);
292
decf491f 293 spin_lock(&inode->i_lock);
38478b24 294 nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS;
f3821110 295 if (S_ISDIR(inode->i_mode))
38478b24 296 nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA;
decf491f
TM		 297 spin_unlock(&inode->i_lock);
298}
299
1da177e4
LT		 300static inline int nfs_server_capable(struct inode *inode, int cap)
301{
302 return NFS_SERVER(inode)->caps & cap;
303}
304
d75340cc
TM		 305static inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf)
306{
307 dentry->d_time = verf;
308}
309
1da177e4
LT		 310/**
311 * nfs_save_change_attribute - Returns the inode attribute change cookie
8edb0182 312 * @dir - pointer to parent directory inode
1da177e4
LT		 313 * The "change attribute" is updated every time we finish an operation
314 * that will result in a metadata change on the server.
315 */
8edb0182 316static inline unsigned long nfs_save_change_attribute(struct inode *dir)
1da177e4 317{
8edb0182 318 return NFS_I(dir)->cache_change_attribute;
1da177e4
LT		 319}
320
321/**
4b841736
TM		 322 * nfs_verify_change_attribute - Detects NFS remote directory changes
323 * @dir - pointer to parent directory inode
1da177e4 324 * @chattr - previously saved change attribute
4b841736
TM		 325 * Return "false" if the verifiers doesn't match the change attribute.
326 * This would usually indicate that the directory contents have changed on
327 * the server, and that any dentries need revalidating.
1da177e4 328 */
4b841736 329static inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr)
1da177e4 330{
4b841736 331 return chattr == NFS_I(dir)->cache_change_attribute;
1da177e4
LT		 332}
333
334/*
335 * linux/fs/nfs/inode.c
336 */
29884df0 337extern int nfs_sync_mapping(struct address_space *mapping);
cd9ae2b6 338extern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping);
1da177e4 339extern void nfs_zap_caches(struct inode *);
c4812998 340extern void nfs_invalidate_atime(struct inode *);
1da177e4 341extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *,
1775fd3e 342 struct nfs_fattr *, struct nfs4_label *);
1da177e4 343extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *);
decf491f 344extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
70ca8852 345extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr);
1da177e4 346extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
6168f62c
WAA		 347extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
348extern void nfs_access_set_mask(struct nfs_access_entry *, u32);
10556cb2 349extern int nfs_permission(struct inode *, int);
1da177e4
LT		 350extern int nfs_open(struct inode *, struct file *);
351extern int nfs_release(struct inode *, struct file *);
352extern int nfs_attribute_timeout(struct inode *inode);
43f291cd 353extern int nfs_attribute_cache_expired(struct inode *inode);
1da177e4 354extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode);
912a108d 355extern int nfs_revalidate_inode_rcu(struct nfs_server *server, struct inode *inode);
1da177e4 356extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *);
44b11874 357extern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping);
1da177e4 358extern int nfs_setattr(struct dentry *, struct iattr *);
f044636d 359extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr, struct nfs_fattr *);
aa9c2669
DQ		 360extern void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
361 struct nfs4_label *label);
1da177e4
LT		 362extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
363extern void put_nfs_open_context(struct nfs_open_context *ctx);
dc0b027d 364extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
5ede7b1c 365extern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode);
c45ffdd2 366extern void nfs_inode_attach_open_context(struct nfs_open_context *ctx);
cd9a1c0e 367extern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx);
f11ac8db
TM		 368extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx);
369extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx);
f43bf0be 370extern u64 nfs_compat_user_ino64(u64 fileid);
4704f0e2 371extern void nfs_fattr_init(struct nfs_fattr *fattr);
140e049c 372extern void nfs_fattr_set_barrier(struct nfs_fattr *fattr);
56463e50 373extern unsigned long nfs_inc_attr_generation_counter(void);
1da177e4 374
2d36bfde
TM		 375extern struct nfs_fattr *nfs_alloc_fattr(void);
376
377static inline void nfs_free_fattr(const struct nfs_fattr *fattr)
378{
379 kfree(fattr);
380}
381
382extern struct nfs_fh *nfs_alloc_fhandle(void);
383
384static inline void nfs_free_fhandle(const struct nfs_fh *fh)
385{
386 kfree(fh);
387}
388
e27d359e 389#ifdef NFS_DEBUG
d8e0539e
WAA		 390extern u32 _nfs_display_fhandle_hash(const struct nfs_fh *fh);
391static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh)
392{
393 return _nfs_display_fhandle_hash(fh);
394}
20d27e92
CL		 395extern void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption);
396#define nfs_display_fhandle(fh, caption) \
397 do { \
398 if (unlikely(nfs_debug & NFSDBG_FACILITY)) \
399 _nfs_display_fhandle(fh, caption); \
400 } while (0)
401#else
d8e0539e
WAA		 402static inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh)
403{
9304a812 404 return 0;
d8e0539e 405}
20d27e92
CL		 406static inline void nfs_display_fhandle(const struct nfs_fh *fh,
407 const char *caption)
408{
409}
410#endif
411
56463e50
CL		 412/*
413 * linux/fs/nfs/nfsroot.c
414 */
415extern int nfs_root_data(char **root_device, char **root_data); /*__init*/
1da177e4 416/* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */
5a874db4 417extern __be32 root_nfs_parse_addr(char *name); /*__init*/
0e574af1 418
1da177e4
LT		 419/*
420 * linux/fs/nfs/file.c
421 */
4b6f5d20 422extern const struct file_operations nfs_file_operations;
89d77c8f 423#if IS_ENABLED(CONFIG_NFS_V4)
1788ea6e
JL		 424extern const struct file_operations nfs4_file_operations;
425#endif /* CONFIG_NFS_V4 */
f5e54d6e 426extern const struct address_space_operations nfs_file_aops;
11de3b11 427extern const struct address_space_operations nfs_dir_aops;
1da177e4 428
c03025d5
TM		 429static inline struct nfs_open_context *nfs_file_open_context(struct file *filp)
430{
431 return filp->private_data;
432}
433
1da177e4
LT		 434static inline struct rpc_cred *nfs_file_cred(struct file *file)
435{
504e5189
NB		 436 if (file != NULL) {
437 struct nfs_open_context *ctx =
438 nfs_file_open_context(file);
439 if (ctx)
440 return ctx->cred;
441 }
1da177e4
LT		 442 return NULL;
443}
444
445/*
446 * linux/fs/nfs/direct.c
447 */
d8d3d94b 448extern ssize_t nfs_direct_IO(int, struct kiocb *, struct iov_iter *, loff_t);
027445c3 449extern ssize_t nfs_file_direct_read(struct kiocb *iocb,
619d30b4 450 struct iov_iter *iter,
e19a8a0a 451 loff_t pos);
027445c3 452extern ssize_t nfs_file_direct_write(struct kiocb *iocb,
619d30b4 453 struct iov_iter *iter,
e19a8a0a 454 loff_t pos);
1da177e4
LT		 455
456/*
457 * linux/fs/nfs/dir.c
458 */
4b6f5d20 459extern const struct file_operations nfs_dir_operations;
f786aa90 460extern const struct dentry_operations nfs_dentry_operations;
1da177e4 461
bfc69a45 462extern void nfs_force_lookup_revalidate(struct inode *dir);
1775fd3e
DQ		 463extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh,
464 struct nfs_fattr *fattr, struct nfs4_label *label);
af22f94a
TM		 465extern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags);
466extern void nfs_access_zap_cache(struct inode *inode);
1da177e4
LT		 467
468/*
469 * linux/fs/nfs/symlink.c
470 */
c5ef1c42 471extern const struct inode_operations nfs_symlink_inode_operations;
1da177e4 472
a72b4422
TM		 473/*
474 * linux/fs/nfs/sysctl.c
475 */
476#ifdef CONFIG_SYSCTL
477extern int nfs_register_sysctl(void);
478extern void nfs_unregister_sysctl(void);
479#else
7fd105e7 480#define nfs_register_sysctl() 0
a72b4422
TM		 481#define nfs_unregister_sysctl() do { } while(0)
482#endif
483
55a97593
TM		 484/*
485 * linux/fs/nfs/namespace.c
486 */
c5ef1c42
AV		 487extern const struct inode_operations nfs_mountpoint_inode_operations;
488extern const struct inode_operations nfs_referral_inode_operations;
51d8fa6a
TM		 489extern int nfs_mountpoint_expiry_timeout;
490extern void nfs_release_automount_timer(void);
55a97593 491
1da177e4
LT		 492/*
493 * linux/fs/nfs/unlink.c
494 */
e4eff1a6 495extern void nfs_complete_unlink(struct dentry *dentry, struct inode *);
ba6c0592 496extern void nfs_wait_on_sillyrename(struct dentry *dentry);
565277f6
TM		 497extern void nfs_block_sillyrename(struct dentry *dentry);
498extern void nfs_unblock_sillyrename(struct dentry *dentry);
1da177e4
LT		 499
500/*
501 * linux/fs/nfs/write.c
502 */
89a09141 503extern int nfs_congestion_kb;
1da177e4
LT		 504extern int nfs_writepage(struct page *page, struct writeback_control *wbc);
505extern int nfs_writepages(struct address_space *, struct writeback_control *);
506extern int nfs_flush_incompatible(struct file *file, struct page *page);
507extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
1da177e4
LT		 508
509/*
510 * Try to write back everything synchronously (but check the
511 * return value!)
512 */
1c75950b
TM		 513extern int nfs_wb_all(struct inode *inode);
514extern int nfs_wb_page(struct inode *inode, struct page* page);
1b3b4a1a 515extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
b608b283 516extern int nfs_commit_inode(struct inode *, int);
0b7c0153
FI		 517extern struct nfs_commit_data *nfs_commitdata_alloc(void);
518extern void nfs_commit_free(struct nfs_commit_data *data);
1da177e4
LT		 519
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{
433c9237
CL		 541 if (size > (__u64) OFFSET_MAX - 1)
542 return OFFSET_MAX - 1;
1da177e4
LT		 543 return (loff_t) size;
544}
545
546static inline ino_t
547nfs_fileid_to_ino_t(u64 fileid)
548{
549 ino_t ino = (ino_t) fileid;
550 if (sizeof(ino_t) < sizeof(u64))
551 ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
552 return ino;
553}
554
1da177e4
LT		 555#define NFS_JUKEBOX_RETRY_TIME (5 * HZ)
556
4dc2eaec 557
1da177e4
LT		 558# undef ifdebug
559# ifdef NFS_DEBUG
560# define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac))
6f00866d 561# define NFS_IFDEBUG(x) x
1da177e4
LT		 562# else
563# define ifdebug(fac) if (0)
6f00866d 564# define NFS_IFDEBUG(x)
1da177e4 565# endif
1da177e4 566#endif
Linux 6.x block layer and io_uring tree(s)