Line data Source code
1 : // SPDX-License-Identifier: GPL-2.0
2 : /*
3 : * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
4 : * All Rights Reserved.
5 : */
6 : #ifndef __XFS_INODE_H__
7 : #define __XFS_INODE_H__
8 :
9 : #include "xfs_inode_buf.h"
10 : #include "xfs_inode_fork.h"
11 :
12 : /*
13 : * Kernel only inode definitions
14 : */
15 : struct xfs_dinode;
16 : struct xfs_inode;
17 : struct xfs_buf;
18 : struct xfs_bmbt_irec;
19 : struct xfs_inode_log_item;
20 : struct xfs_mount;
21 : struct xfs_trans;
22 : struct xfs_dquot;
23 :
24 : typedef struct xfs_inode {
25 : /* Inode linking and identification information. */
26 : struct xfs_mount *i_mount; /* fs mount struct ptr */
27 : struct xfs_dquot *i_udquot; /* user dquot */
28 : struct xfs_dquot *i_gdquot; /* group dquot */
29 : struct xfs_dquot *i_pdquot; /* project dquot */
30 :
31 : /* Inode location stuff */
32 : xfs_ino_t i_ino; /* inode number (agno/agino)*/
33 : struct xfs_imap i_imap; /* location for xfs_imap() */
34 :
35 : /* Extent information. */
36 : struct xfs_ifork *i_cowfp; /* copy on write extents */
37 : struct xfs_ifork i_df; /* data fork */
38 : struct xfs_ifork i_af; /* attribute fork */
39 :
40 : /* Transaction and locking information. */
41 : struct xfs_inode_log_item *i_itemp; /* logging information */
42 : mrlock_t i_lock; /* inode lock */
43 : atomic_t i_pincount; /* inode pin count */
44 : struct llist_node i_gclist; /* deferred inactivation list */
45 :
46 : /*
47 : * Bitsets of inode metadata that have been checked and/or are sick.
48 : * Callers must hold i_flags_lock before accessing this field.
49 : */
50 : uint16_t i_checked;
51 : uint16_t i_sick;
52 :
53 : spinlock_t i_flags_lock; /* inode i_flags lock */
54 : /* Miscellaneous state. */
55 : unsigned long i_flags; /* see defined flags below */
56 : uint64_t i_delayed_blks; /* count of delay alloc blks */
57 : xfs_fsize_t i_disk_size; /* number of bytes in file */
58 : xfs_rfsblock_t i_nblocks; /* # of direct & btree blocks */
59 : prid_t i_projid; /* owner's project id */
60 : xfs_extlen_t i_extsize; /* basic/minimum extent size */
61 : /* cowextsize is only used for v3 inodes, flushiter for v1/2 */
62 : union {
63 : xfs_extlen_t i_cowextsize; /* basic cow extent size */
64 : uint16_t i_flushiter; /* incremented on flush */
65 : };
66 : uint8_t i_forkoff; /* attr fork offset >> 3 */
67 : uint16_t i_diflags; /* XFS_DIFLAG_... */
68 : uint64_t i_diflags2; /* XFS_DIFLAG2_... */
69 : struct timespec64 i_crtime; /* time created */
70 :
71 : /*
72 : * Unlinked list pointers. These point to the next and previous inodes
73 : * in the AGI unlinked bucket list, respectively. These fields can
74 : * only be updated with the AGI locked.
75 : *
76 : * i_next_unlinked caches di_next_unlinked.
77 : */
78 : xfs_agino_t i_next_unlinked;
79 :
80 : /*
81 : * If the inode is not on an unlinked list, this field is zero. If the
82 : * inode is the first element in an unlinked list, this field is
83 : * NULLAGINO. Otherwise, i_prev_unlinked points to the previous inode
84 : * in the unlinked list.
85 : */
86 : xfs_agino_t i_prev_unlinked;
87 :
88 : /* VFS inode */
89 : struct inode i_vnode; /* embedded VFS inode */
90 :
91 : /* pending io completions */
92 : spinlock_t i_ioend_lock;
93 : struct work_struct i_ioend_work;
94 : struct list_head i_ioend_list;
95 : } xfs_inode_t;
96 :
97 : static inline bool xfs_inode_on_unlinked_list(const struct xfs_inode *ip)
98 : {
99 1872926326 : return ip->i_prev_unlinked != 0;
100 : }
101 :
102 : static inline bool xfs_inode_has_attr_fork(struct xfs_inode *ip)
103 : {
104 73222060530 : return ip->i_forkoff > 0;
105 : }
106 :
107 : static inline struct xfs_ifork *
108 14068539204 : xfs_ifork_ptr(
109 : struct xfs_inode *ip,
110 : int whichfork)
111 : {
112 16160524174 : switch (whichfork) {
113 10647237653 : case XFS_DATA_FORK:
114 10889938296 : return &ip->i_df;
115 : case XFS_ATTR_FORK:
116 4089521074 : if (!xfs_inode_has_attr_fork(ip))
117 : return NULL;
118 4089428127 : return &ip->i_af;
119 118976713 : case XFS_COW_FORK:
120 1194431361 : return ip->i_cowfp;
121 0 : default:
122 0 : ASSERT(0);
123 0 : return NULL;
124 : }
125 : }
126 :
127 : static inline unsigned int xfs_inode_fork_boff(struct xfs_inode *ip)
128 : {
129 61994546450 : return ip->i_forkoff << 3;
130 : }
131 :
132 944754651 : static inline unsigned int xfs_inode_data_fork_size(struct xfs_inode *ip)
133 : {
134 944754651 : if (xfs_inode_has_attr_fork(ip))
135 933787193 : return xfs_inode_fork_boff(ip);
136 :
137 10967960 : return XFS_LITINO(ip->i_mount);
138 : }
139 :
140 596640666 : static inline unsigned int xfs_inode_attr_fork_size(struct xfs_inode *ip)
141 : {
142 596640666 : if (xfs_inode_has_attr_fork(ip))
143 596442489 : return XFS_LITINO(ip->i_mount) - xfs_inode_fork_boff(ip);
144 : return 0;
145 : }
146 :
147 : static inline unsigned int
148 935497152 : xfs_inode_fork_size(
149 : struct xfs_inode *ip,
150 : int whichfork)
151 : {
152 940990155 : switch (whichfork) {
153 560387448 : case XFS_DATA_FORK:
154 565880451 : return xfs_inode_data_fork_size(ip);
155 375109704 : case XFS_ATTR_FORK:
156 375109704 : return xfs_inode_attr_fork_size(ip);
157 : default:
158 : return 0;
159 : }
160 : }
161 :
162 : /* Convert from vfs inode to xfs inode */
163 : static inline struct xfs_inode *XFS_I(struct inode *inode)
164 : {
165 11016133104 : return container_of(inode, struct xfs_inode, i_vnode);
166 : }
167 :
168 : /* convert from xfs inode to vfs inode */
169 : static inline struct inode *VFS_I(struct xfs_inode *ip)
170 : {
171 >19977*10^7 : return &ip->i_vnode;
172 : }
173 :
174 : /* convert from const xfs inode to const vfs inode */
175 : static inline const struct inode *VFS_IC(const struct xfs_inode *ip)
176 : {
177 : return &ip->i_vnode;
178 : }
179 :
180 : /*
181 : * For regular files we only update the on-disk filesize when actually
182 : * writing data back to disk. Until then only the copy in the VFS inode
183 : * is uptodate.
184 : */
185 : static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
186 : {
187 1828526200 : if (S_ISREG(VFS_I(ip)->i_mode))
188 635663264 : return i_size_read(VFS_I(ip));
189 1205195097 : return ip->i_disk_size;
190 : }
191 :
192 : /*
193 : * If this I/O goes past the on-disk inode size update it unless it would
194 : * be past the current in-core inode size.
195 : */
196 : static inline xfs_fsize_t
197 : xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size)
198 : {
199 37793521 : xfs_fsize_t i_size = i_size_read(VFS_I(ip));
200 :
201 37793521 : if (new_size > i_size || new_size < 0)
202 16628805 : new_size = i_size;
203 37793521 : return new_size > ip->i_disk_size ? new_size : 0;
204 : }
205 :
206 : /*
207 : * i_flags helper functions
208 : */
209 : static inline void
210 : __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
211 : {
212 667033672 : ip->i_flags |= flags;
213 : }
214 :
215 : static inline void
216 512581173 : xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
217 : {
218 512581173 : spin_lock(&ip->i_flags_lock);
219 512600499 : __xfs_iflags_set(ip, flags);
220 512600499 : spin_unlock(&ip->i_flags_lock);
221 512587876 : }
222 :
223 : static inline void
224 67228213589 : xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
225 : {
226 67228213589 : spin_lock(&ip->i_flags_lock);
227 67534321883 : ip->i_flags &= ~flags;
228 67534321883 : spin_unlock(&ip->i_flags_lock);
229 67494846602 : }
230 :
231 : static inline int
232 : __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
233 : {
234 7764293263 : return (ip->i_flags & flags);
235 : }
236 :
237 : static inline int
238 : xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
239 : {
240 74446917424 : int ret;
241 74446917424 : spin_lock(&ip->i_flags_lock);
242 74500027579 : ret = __xfs_iflags_test(ip, flags);
243 74500027579 : spin_unlock(&ip->i_flags_lock);
244 74455653303 : return ret;
245 : }
246 :
247 : static inline int
248 341362705 : xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
249 : {
250 341362705 : int ret;
251 :
252 341362705 : spin_lock(&ip->i_flags_lock);
253 341379946 : ret = ip->i_flags & flags;
254 341379946 : if (ret)
255 1587450 : ip->i_flags &= ~flags;
256 341379946 : spin_unlock(&ip->i_flags_lock);
257 341368725 : return ret;
258 : }
259 :
260 : static inline int
261 474795333 : xfs_iflags_test_and_set(xfs_inode_t *ip, unsigned short flags)
262 : {
263 474795333 : int ret;
264 :
265 474795333 : spin_lock(&ip->i_flags_lock);
266 474796745 : ret = ip->i_flags & flags;
267 474796745 : if (!ret)
268 463895579 : ip->i_flags |= flags;
269 474796745 : spin_unlock(&ip->i_flags_lock);
270 474795661 : return ret;
271 : }
272 :
273 : static inline prid_t
274 : xfs_get_initial_prid(struct xfs_inode *dp)
275 : {
276 61890280 : if (dp->i_diflags & XFS_DIFLAG_PROJINHERIT)
277 426 : return dp->i_projid;
278 :
279 : return XFS_PROJID_DEFAULT;
280 : }
281 :
282 : static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
283 : {
284 1603299390 : return ip->i_diflags2 & XFS_DIFLAG2_REFLINK;
285 : }
286 :
287 798769258 : static inline bool xfs_is_metadata_inode(struct xfs_inode *ip)
288 : {
289 798769258 : struct xfs_mount *mp = ip->i_mount;
290 :
291 1597518172 : return ip == mp->m_rbmip || ip == mp->m_rsumip ||
292 798748914 : xfs_is_quota_inode(&mp->m_sb, ip->i_ino);
293 : }
294 :
295 : /*
296 : * Check if an inode has any data in the COW fork. This might be often false
297 : * even for inodes with the reflink flag when there is no pending COW operation.
298 : */
299 : static inline bool xfs_inode_has_cow_data(struct xfs_inode *ip)
300 : {
301 957132831 : return ip->i_cowfp && ip->i_cowfp->if_bytes;
302 : }
303 :
304 : static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
305 : {
306 9035731713 : return ip->i_diflags2 & XFS_DIFLAG2_BIGTIME;
307 : }
308 :
309 : static inline bool xfs_inode_has_large_extent_counts(struct xfs_inode *ip)
310 : {
311 2065254119 : return ip->i_diflags2 & XFS_DIFLAG2_NREXT64;
312 : }
313 :
314 10203436 : static inline bool xfs_inode_has_bigrtextents(struct xfs_inode *ip)
315 : {
316 10203436 : return XFS_IS_REALTIME_INODE(ip) && ip->i_mount->m_sb.sb_rextsize > 1;
317 : }
318 :
319 : /*
320 : * Return the buftarg used for data allocations on a given inode.
321 : */
322 : #define xfs_inode_buftarg(ip) \
323 : (XFS_IS_REALTIME_INODE(ip) ? \
324 : (ip)->i_mount->m_rtdev_targp : (ip)->i_mount->m_ddev_targp)
325 :
326 : /*
327 : * In-core inode flags.
328 : */
329 : #define XFS_IRECLAIM (1 << 0) /* started reclaiming this inode */
330 : #define XFS_ISTALE (1 << 1) /* inode has been staled */
331 : #define XFS_IRECLAIMABLE (1 << 2) /* inode can be reclaimed */
332 : #define XFS_INEW (1 << 3) /* inode has just been allocated */
333 : #define XFS_IPRESERVE_DM_FIELDS (1 << 4) /* has legacy DMAPI fields set */
334 : #define XFS_ITRUNCATED (1 << 5) /* truncated down so flush-on-close */
335 : #define XFS_IDIRTY_RELEASE (1 << 6) /* dirty release already seen */
336 : #define XFS_IFLUSHING (1 << 7) /* inode is being flushed */
337 : #define __XFS_IPINNED_BIT 8 /* wakeup key for zero pin count */
338 : #define XFS_IPINNED (1 << __XFS_IPINNED_BIT)
339 : #define XFS_IEOFBLOCKS (1 << 9) /* has the preallocblocks tag set */
340 : #define XFS_NEED_INACTIVE (1 << 10) /* see XFS_INACTIVATING below */
341 : /*
342 : * If this unlinked inode is in the middle of recovery, don't let drop_inode
343 : * truncate and free the inode. This can happen if we iget the inode during
344 : * log recovery to replay a bmap operation on the inode.
345 : */
346 : #define XFS_IRECOVERY (1 << 11)
347 : #define XFS_ICOWBLOCKS (1 << 12)/* has the cowblocks tag set */
348 :
349 : /*
350 : * If we need to update on-disk metadata before this IRECLAIMABLE inode can be
351 : * freed, then NEED_INACTIVE will be set. Once we start the updates, the
352 : * INACTIVATING bit will be set to keep iget away from this inode. After the
353 : * inactivation completes, both flags will be cleared and the inode is a
354 : * plain old IRECLAIMABLE inode.
355 : */
356 : #define XFS_INACTIVATING (1 << 13)
357 :
358 : /* All inode state flags related to inode reclaim. */
359 : #define XFS_ALL_IRECLAIM_FLAGS (XFS_IRECLAIMABLE | \
360 : XFS_IRECLAIM | \
361 : XFS_NEED_INACTIVE | \
362 : XFS_INACTIVATING)
363 :
364 : /*
365 : * Per-lifetime flags need to be reset when re-using a reclaimable inode during
366 : * inode lookup. This prevents unintended behaviour on the new inode from
367 : * ocurring.
368 : */
369 : #define XFS_IRECLAIM_RESET_FLAGS \
370 : (XFS_IRECLAIMABLE | XFS_IRECLAIM | \
371 : XFS_IDIRTY_RELEASE | XFS_ITRUNCATED | XFS_NEED_INACTIVE | \
372 : XFS_INACTIVATING)
373 :
374 : /*
375 : * Flags for inode locking.
376 : * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
377 : * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
378 : */
379 : #define XFS_IOLOCK_EXCL (1u << 0)
380 : #define XFS_IOLOCK_SHARED (1u << 1)
381 : #define XFS_ILOCK_EXCL (1u << 2)
382 : #define XFS_ILOCK_SHARED (1u << 3)
383 : #define XFS_MMAPLOCK_EXCL (1u << 4)
384 : #define XFS_MMAPLOCK_SHARED (1u << 5)
385 :
386 : #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
387 : | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \
388 : | XFS_MMAPLOCK_EXCL | XFS_MMAPLOCK_SHARED)
389 :
390 : #define XFS_LOCK_FLAGS \
391 : { XFS_IOLOCK_EXCL, "IOLOCK_EXCL" }, \
392 : { XFS_IOLOCK_SHARED, "IOLOCK_SHARED" }, \
393 : { XFS_ILOCK_EXCL, "ILOCK_EXCL" }, \
394 : { XFS_ILOCK_SHARED, "ILOCK_SHARED" }, \
395 : { XFS_MMAPLOCK_EXCL, "MMAPLOCK_EXCL" }, \
396 : { XFS_MMAPLOCK_SHARED, "MMAPLOCK_SHARED" }
397 :
398 :
399 : /*
400 : * Flags for lockdep annotations.
401 : *
402 : * XFS_LOCK_PARENT - for directory operations that require locking a
403 : * parent directory inode and a child entry inode. IOLOCK requires nesting,
404 : * MMAPLOCK does not support this class, ILOCK requires a single subclass
405 : * to differentiate parent from child.
406 : *
407 : * XFS_LOCK_RTBITMAP/XFS_LOCK_RTSUM - the realtime device bitmap and summary
408 : * inodes do not participate in the normal lock order, and thus have their
409 : * own subclasses.
410 : *
411 : * XFS_LOCK_INUMORDER - for locking several inodes at the some time
412 : * with xfs_lock_inodes(). This flag is used as the starting subclass
413 : * and each subsequent lock acquired will increment the subclass by one.
414 : * However, MAX_LOCKDEP_SUBCLASSES == 8, which means we are greatly
415 : * limited to the subclasses we can represent via nesting. We need at least
416 : * 5 inodes nest depth for the ILOCK through rename, and we also have to support
417 : * XFS_ILOCK_PARENT, which gives 6 subclasses. Then we have XFS_ILOCK_RTBITMAP
418 : * and XFS_ILOCK_RTSUM, which are another 2 unique subclasses, so that's all
419 : * 8 subclasses supported by lockdep.
420 : *
421 : * This also means we have to number the sub-classes in the lowest bits of
422 : * the mask we keep, and we have to ensure we never exceed 3 bits of lockdep
423 : * mask and we can't use bit-masking to build the subclasses. What a mess.
424 : *
425 : * Bit layout:
426 : *
427 : * Bit Lock Region
428 : * 16-19 XFS_IOLOCK_SHIFT dependencies
429 : * 20-23 XFS_MMAPLOCK_SHIFT dependencies
430 : * 24-31 XFS_ILOCK_SHIFT dependencies
431 : *
432 : * IOLOCK values
433 : *
434 : * 0-3 subclass value
435 : * 4-7 unused
436 : *
437 : * MMAPLOCK values
438 : *
439 : * 0-3 subclass value
440 : * 4-7 unused
441 : *
442 : * ILOCK values
443 : * 0-4 subclass values
444 : * 5 PARENT subclass (not nestable)
445 : * 6 RTBITMAP subclass (not nestable)
446 : * 7 RTSUM subclass (not nestable)
447 : *
448 : */
449 : #define XFS_IOLOCK_SHIFT 16
450 : #define XFS_IOLOCK_MAX_SUBCLASS 3
451 : #define XFS_IOLOCK_DEP_MASK 0x000f0000u
452 :
453 : #define XFS_MMAPLOCK_SHIFT 20
454 : #define XFS_MMAPLOCK_NUMORDER 0
455 : #define XFS_MMAPLOCK_MAX_SUBCLASS 3
456 : #define XFS_MMAPLOCK_DEP_MASK 0x00f00000u
457 :
458 : #define XFS_ILOCK_SHIFT 24
459 : #define XFS_ILOCK_PARENT_VAL 5u
460 : #define XFS_ILOCK_MAX_SUBCLASS (XFS_ILOCK_PARENT_VAL - 1)
461 : #define XFS_ILOCK_RTBITMAP_VAL 6u
462 : #define XFS_ILOCK_RTSUM_VAL 7u
463 : #define XFS_ILOCK_DEP_MASK 0xff000000u
464 : #define XFS_ILOCK_PARENT (XFS_ILOCK_PARENT_VAL << XFS_ILOCK_SHIFT)
465 : #define XFS_ILOCK_RTBITMAP (XFS_ILOCK_RTBITMAP_VAL << XFS_ILOCK_SHIFT)
466 : #define XFS_ILOCK_RTSUM (XFS_ILOCK_RTSUM_VAL << XFS_ILOCK_SHIFT)
467 :
468 : #define XFS_LOCK_SUBCLASS_MASK (XFS_IOLOCK_DEP_MASK | \
469 : XFS_MMAPLOCK_DEP_MASK | \
470 : XFS_ILOCK_DEP_MASK)
471 :
472 : #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) \
473 : >> XFS_IOLOCK_SHIFT)
474 : #define XFS_MMAPLOCK_DEP(flags) (((flags) & XFS_MMAPLOCK_DEP_MASK) \
475 : >> XFS_MMAPLOCK_SHIFT)
476 : #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) \
477 : >> XFS_ILOCK_SHIFT)
478 :
479 : /*
480 : * Layouts are broken in the BREAK_WRITE case to ensure that
481 : * layout-holders do not collide with local writes. Additionally,
482 : * layouts are broken in the BREAK_UNMAP case to make sure the
483 : * layout-holder has a consistent view of the file's extent map. While
484 : * BREAK_WRITE breaks can be satisfied by recalling FL_LAYOUT leases,
485 : * BREAK_UNMAP breaks additionally require waiting for busy dax-pages to
486 : * go idle.
487 : */
488 : enum layout_break_reason {
489 : BREAK_WRITE,
490 : BREAK_UNMAP,
491 : };
492 :
493 : /*
494 : * For multiple groups support: if S_ISGID bit is set in the parent
495 : * directory, group of new file is set to that of the parent, and
496 : * new subdirectory gets S_ISGID bit from parent.
497 : */
498 : #define XFS_INHERIT_GID(pip) \
499 : (xfs_has_grpid((pip)->i_mount) || (VFS_I(pip)->i_mode & S_ISGID))
500 :
501 : int xfs_release(struct xfs_inode *ip, bool want_free_eofblocks);
502 : int xfs_inactive(struct xfs_inode *ip);
503 : int xfs_lookup(struct xfs_inode *dp, const struct xfs_name *name,
504 : struct xfs_inode **ipp, struct xfs_name *ci_name);
505 : int xfs_create(struct mnt_idmap *idmap,
506 : struct xfs_inode *dp, struct xfs_name *name,
507 : umode_t mode, dev_t rdev, bool need_xattr,
508 : struct xfs_inode **ipp);
509 : int xfs_create_tmpfile(struct mnt_idmap *idmap,
510 : struct xfs_inode *dp, umode_t mode, bool init_xattrs,
511 : struct xfs_inode **ipp);
512 : int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
513 : struct xfs_inode *ip);
514 : int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
515 : struct xfs_name *target_name);
516 : int xfs_rename(struct mnt_idmap *idmap,
517 : struct xfs_inode *src_dp, struct xfs_name *src_name,
518 : struct xfs_inode *src_ip, struct xfs_inode *target_dp,
519 : struct xfs_name *target_name,
520 : struct xfs_inode *target_ip, unsigned int flags);
521 :
522 : void xfs_ilock(xfs_inode_t *, uint);
523 : int xfs_ilock_nowait(xfs_inode_t *, uint);
524 : void xfs_iunlock(xfs_inode_t *, uint);
525 : void xfs_ilock_demote(xfs_inode_t *, uint);
526 : bool xfs_isilocked(struct xfs_inode *, uint);
527 : uint xfs_ilock_data_map_shared(struct xfs_inode *);
528 : uint xfs_ilock_attr_map_shared(struct xfs_inode *);
529 :
530 : uint xfs_ip2xflags(struct xfs_inode *);
531 : int xfs_ifree(struct xfs_trans *, struct xfs_inode *);
532 : int xfs_itruncate_extents_flags(struct xfs_trans **,
533 : struct xfs_inode *, int, xfs_fsize_t, int);
534 : void xfs_iext_realloc(xfs_inode_t *, int, int);
535 :
536 : int xfs_log_force_inode(struct xfs_inode *ip);
537 : void xfs_iunpin_wait(xfs_inode_t *);
538 : #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
539 :
540 : int xfs_iflush_cluster(struct xfs_buf *);
541 : void xfs_lock_two_inodes(struct xfs_inode *ip0, uint ip0_mode,
542 : struct xfs_inode *ip1, uint ip1_mode);
543 :
544 : xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
545 : xfs_extlen_t xfs_get_cowextsz_hint(struct xfs_inode *ip);
546 :
547 : int xfs_init_new_inode(struct mnt_idmap *idmap, struct xfs_trans *tp,
548 : struct xfs_inode *pip, xfs_ino_t ino, umode_t mode,
549 : xfs_nlink_t nlink, dev_t rdev, prid_t prid, bool init_xattrs,
550 : struct xfs_inode **ipp);
551 :
552 : static inline int
553 : xfs_itruncate_extents(
554 : struct xfs_trans **tpp,
555 : struct xfs_inode *ip,
556 : int whichfork,
557 : xfs_fsize_t new_size)
558 : {
559 6183215 : return xfs_itruncate_extents_flags(tpp, ip, whichfork, new_size, 0);
560 : }
561 :
562 : int xfs_break_dax_layouts(struct inode *inode, bool *retry);
563 : int xfs_break_layouts(struct inode *inode, uint *iolock,
564 : enum layout_break_reason reason);
565 :
566 : /*
567 : * When setting up a newly allocated inode, we need to call
568 : * xfs_finish_inode_setup() once the inode is fully instantiated at
569 : * the VFS level to prevent the rest of the world seeing the inode
570 : * before we've completed instantiation. Otherwise we can do it
571 : * the moment the inode lookup is complete.
572 : */
573 1055896318 : static inline void xfs_finish_inode_setup(struct xfs_inode *ip)
574 : {
575 1055896318 : xfs_iflags_clear(ip, XFS_INEW);
576 1055898425 : barrier();
577 1055905783 : unlock_new_inode(VFS_I(ip));
578 1055551276 : }
579 :
580 984721784 : static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
581 : {
582 984721784 : xfs_setup_inode(ip);
583 986460708 : xfs_setup_iops(ip);
584 986388036 : xfs_finish_inode_setup(ip);
585 986391834 : }
586 :
587 : void xfs_irele(struct xfs_inode *ip);
588 :
589 : extern struct kmem_cache *xfs_inode_cache;
590 :
591 : /* The default CoW extent size hint. */
592 : #define XFS_DEFAULT_COWEXTSZ_HINT 32
593 :
594 : bool xfs_inode_needs_inactive(struct xfs_inode *ip);
595 :
596 : int xfs_iunlink(struct xfs_trans *tp, struct xfs_inode *ip);
597 : int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
598 : struct xfs_inode *ip);
599 : struct xfs_inode *xfs_iunlink_lookup(struct xfs_perag *pag, xfs_agino_t agino);
600 :
601 : void xfs_end_io(struct work_struct *work);
602 :
603 : int xfs_ilock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
604 : void xfs_iunlock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
605 : int xfs_droplink(struct xfs_trans *tp, struct xfs_inode *ip);
606 : void xfs_bumplink(struct xfs_trans *tp, struct xfs_inode *ip);
607 : void xfs_lock_inodes(struct xfs_inode **ips, int inodes, uint lock_mode);
608 : void xfs_sort_inodes(struct xfs_inode **i_tab, unsigned int num_inodes);
609 :
610 : void xfs_inode_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,
611 : xfs_filblks_t *dblocks, xfs_filblks_t *rblocks);
612 : unsigned int xfs_inode_alloc_unitsize(struct xfs_inode *ip);
613 :
614 : struct xfs_dir_update_params {
615 : const struct xfs_inode *dp;
616 : const struct xfs_inode *ip;
617 : const struct xfs_name *name;
618 : int delta;
619 : };
620 :
621 : #ifdef CONFIG_XFS_LIVE_HOOKS
622 : void xfs_dir_update_hook(struct xfs_inode *dp, struct xfs_inode *ip,
623 : int delta, const struct xfs_name *name);
624 :
625 : struct xfs_dir_hook {
626 : struct xfs_hook dirent_hook;
627 : };
628 :
629 : void xfs_dir_hook_disable(void);
630 : void xfs_dir_hook_enable(void);
631 :
632 : int xfs_dir_hook_add(struct xfs_mount *mp, struct xfs_dir_hook *hook);
633 : void xfs_dir_hook_del(struct xfs_mount *mp, struct xfs_dir_hook *hook);
634 :
635 : #else
636 : # define xfs_dir_update_hook(dp, ip, delta, name) ((void)0)
637 : #endif /* CONFIG_XFS_LIVE_HOOKS */
638 :
639 : #endif /* __XFS_INODE_H__ */
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