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 : /* unlinked list pointers */
72 : xfs_agino_t i_next_unlinked;
73 : xfs_agino_t i_prev_unlinked;
74 :
75 : /* VFS inode */
76 : struct inode i_vnode; /* embedded VFS inode */
77 :
78 : /* pending io completions */
79 : spinlock_t i_ioend_lock;
80 : struct work_struct i_ioend_work;
81 : struct list_head i_ioend_list;
82 : } xfs_inode_t;
83 :
84 : static inline bool xfs_inode_has_attr_fork(struct xfs_inode *ip)
85 : {
86 60528981011 : return ip->i_forkoff > 0;
87 : }
88 :
89 : static inline struct xfs_ifork *
90 26462740396 : xfs_ifork_ptr(
91 : struct xfs_inode *ip,
92 : int whichfork)
93 : {
94 27999758040 : switch (whichfork) {
95 24121862039 : case XFS_DATA_FORK:
96 24425904645 : return &ip->i_df;
97 : case XFS_ATTR_FORK:
98 2376466473 : if (!xfs_inode_has_attr_fork(ip))
99 : return NULL;
100 1656729158 : return &ip->i_af;
101 113105538 : case XFS_COW_FORK:
102 1262792870 : return ip->i_cowfp;
103 0 : default:
104 0 : ASSERT(0);
105 0 : return NULL;
106 : }
107 : }
108 :
109 : static inline unsigned int xfs_inode_fork_boff(struct xfs_inode *ip)
110 : {
111 53510315300 : return ip->i_forkoff << 3;
112 : }
113 :
114 1566630450 : static inline unsigned int xfs_inode_data_fork_size(struct xfs_inode *ip)
115 : {
116 1566630450 : if (xfs_inode_has_attr_fork(ip))
117 142973837 : return xfs_inode_fork_boff(ip);
118 :
119 1423659294 : return XFS_LITINO(ip->i_mount);
120 : }
121 :
122 124058780 : static inline unsigned int xfs_inode_attr_fork_size(struct xfs_inode *ip)
123 : {
124 124058780 : if (xfs_inode_has_attr_fork(ip))
125 119302633 : return XFS_LITINO(ip->i_mount) - xfs_inode_fork_boff(ip);
126 : return 0;
127 : }
128 :
129 : static inline unsigned int
130 1012359588 : xfs_inode_fork_size(
131 : struct xfs_inode *ip,
132 : int whichfork)
133 : {
134 1016255782 : switch (whichfork) {
135 948629040 : case XFS_DATA_FORK:
136 952525234 : return xfs_inode_data_fork_size(ip);
137 63730548 : case XFS_ATTR_FORK:
138 63730548 : return xfs_inode_attr_fork_size(ip);
139 : default:
140 : return 0;
141 : }
142 : }
143 :
144 : /* Convert from vfs inode to xfs inode */
145 : static inline struct xfs_inode *XFS_I(struct inode *inode)
146 : {
147 24623591820 : return container_of(inode, struct xfs_inode, i_vnode);
148 : }
149 :
150 : /* convert from xfs inode to vfs inode */
151 : static inline struct inode *VFS_I(struct xfs_inode *ip)
152 : {
153 >17590*10^7 : return &ip->i_vnode;
154 : }
155 :
156 : /*
157 : * For regular files we only update the on-disk filesize when actually
158 : * writing data back to disk. Until then only the copy in the VFS inode
159 : * is uptodate.
160 : */
161 : static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
162 : {
163 2186890238 : if (S_ISREG(VFS_I(ip)->i_mode))
164 1063958050 : return i_size_read(VFS_I(ip));
165 1150684880 : return ip->i_disk_size;
166 : }
167 :
168 : /*
169 : * If this I/O goes past the on-disk inode size update it unless it would
170 : * be past the current in-core inode size.
171 : */
172 : static inline xfs_fsize_t
173 : xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size)
174 : {
175 69679159 : xfs_fsize_t i_size = i_size_read(VFS_I(ip));
176 :
177 69679159 : if (new_size > i_size || new_size < 0)
178 26363835 : new_size = i_size;
179 69679159 : return new_size > ip->i_disk_size ? new_size : 0;
180 : }
181 :
182 : /*
183 : * i_flags helper functions
184 : */
185 : static inline void
186 : __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
187 : {
188 656785903 : ip->i_flags |= flags;
189 : }
190 :
191 : static inline void
192 514696508 : xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
193 : {
194 514696508 : spin_lock(&ip->i_flags_lock);
195 515098505 : __xfs_iflags_set(ip, flags);
196 515098505 : spin_unlock(&ip->i_flags_lock);
197 515046813 : }
198 :
199 : static inline void
200 56490237806 : xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
201 : {
202 56490237806 : spin_lock(&ip->i_flags_lock);
203 57133374323 : ip->i_flags &= ~flags;
204 57133374323 : spin_unlock(&ip->i_flags_lock);
205 57511242153 : }
206 :
207 : static inline int
208 : __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
209 : {
210 8350111189 : return (ip->i_flags & flags);
211 : }
212 :
213 : static inline int
214 : xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
215 : {
216 67037847900 : int ret;
217 67037847900 : spin_lock(&ip->i_flags_lock);
218 67247462242 : ret = __xfs_iflags_test(ip, flags);
219 67247462242 : spin_unlock(&ip->i_flags_lock);
220 67342430040 : return ret;
221 : }
222 :
223 : static inline int
224 505641251 : xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
225 : {
226 505641251 : int ret;
227 :
228 505641251 : spin_lock(&ip->i_flags_lock);
229 506620643 : ret = ip->i_flags & flags;
230 506620643 : if (ret)
231 1949649 : ip->i_flags &= ~flags;
232 506620643 : spin_unlock(&ip->i_flags_lock);
233 506622868 : return ret;
234 : }
235 :
236 : static inline int
237 456674041 : xfs_iflags_test_and_set(xfs_inode_t *ip, unsigned short flags)
238 : {
239 456674041 : int ret;
240 :
241 456674041 : spin_lock(&ip->i_flags_lock);
242 456675368 : ret = ip->i_flags & flags;
243 456675368 : if (!ret)
244 448366005 : ip->i_flags |= flags;
245 456675368 : spin_unlock(&ip->i_flags_lock);
246 456675307 : return ret;
247 : }
248 :
249 : static inline prid_t
250 : xfs_get_initial_prid(struct xfs_inode *dp)
251 : {
252 83726245 : if (dp->i_diflags & XFS_DIFLAG_PROJINHERIT)
253 1278 : return dp->i_projid;
254 :
255 : return XFS_PROJID_DEFAULT;
256 : }
257 :
258 : static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
259 : {
260 4658223365 : return ip->i_diflags2 & XFS_DIFLAG2_REFLINK;
261 : }
262 :
263 781372460 : static inline bool xfs_is_metadata_inode(struct xfs_inode *ip)
264 : {
265 781372460 : struct xfs_mount *mp = ip->i_mount;
266 :
267 1562656990 : return ip == mp->m_rbmip || ip == mp->m_rsumip ||
268 781284530 : xfs_is_quota_inode(&mp->m_sb, ip->i_ino);
269 : }
270 :
271 : /*
272 : * Check if an inode has any data in the COW fork. This might be often false
273 : * even for inodes with the reflink flag when there is no pending COW operation.
274 : */
275 : static inline bool xfs_inode_has_cow_data(struct xfs_inode *ip)
276 : {
277 1403181820 : return ip->i_cowfp && ip->i_cowfp->if_bytes;
278 : }
279 :
280 : static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
281 : {
282 11126313010 : return ip->i_diflags2 & XFS_DIFLAG2_BIGTIME;
283 : }
284 :
285 : static inline bool xfs_inode_has_large_extent_counts(struct xfs_inode *ip)
286 : {
287 2704021134 : return ip->i_diflags2 & XFS_DIFLAG2_NREXT64;
288 : }
289 :
290 : /*
291 : * Return the buftarg used for data allocations on a given inode.
292 : */
293 : #define xfs_inode_buftarg(ip) \
294 : (XFS_IS_REALTIME_INODE(ip) ? \
295 : (ip)->i_mount->m_rtdev_targp : (ip)->i_mount->m_ddev_targp)
296 :
297 : /*
298 : * In-core inode flags.
299 : */
300 : #define XFS_IRECLAIM (1 << 0) /* started reclaiming this inode */
301 : #define XFS_ISTALE (1 << 1) /* inode has been staled */
302 : #define XFS_IRECLAIMABLE (1 << 2) /* inode can be reclaimed */
303 : #define XFS_INEW (1 << 3) /* inode has just been allocated */
304 : #define XFS_IPRESERVE_DM_FIELDS (1 << 4) /* has legacy DMAPI fields set */
305 : #define XFS_ITRUNCATED (1 << 5) /* truncated down so flush-on-close */
306 : #define XFS_IDIRTY_RELEASE (1 << 6) /* dirty release already seen */
307 : #define XFS_IFLUSHING (1 << 7) /* inode is being flushed */
308 : #define __XFS_IPINNED_BIT 8 /* wakeup key for zero pin count */
309 : #define XFS_IPINNED (1 << __XFS_IPINNED_BIT)
310 : #define XFS_IEOFBLOCKS (1 << 9) /* has the preallocblocks tag set */
311 : #define XFS_NEED_INACTIVE (1 << 10) /* see XFS_INACTIVATING below */
312 : /*
313 : * If this unlinked inode is in the middle of recovery, don't let drop_inode
314 : * truncate and free the inode. This can happen if we iget the inode during
315 : * log recovery to replay a bmap operation on the inode.
316 : */
317 : #define XFS_IRECOVERY (1 << 11)
318 : #define XFS_ICOWBLOCKS (1 << 12)/* has the cowblocks tag set */
319 :
320 : /*
321 : * If we need to update on-disk metadata before this IRECLAIMABLE inode can be
322 : * freed, then NEED_INACTIVE will be set. Once we start the updates, the
323 : * INACTIVATING bit will be set to keep iget away from this inode. After the
324 : * inactivation completes, both flags will be cleared and the inode is a
325 : * plain old IRECLAIMABLE inode.
326 : */
327 : #define XFS_INACTIVATING (1 << 13)
328 :
329 : /* All inode state flags related to inode reclaim. */
330 : #define XFS_ALL_IRECLAIM_FLAGS (XFS_IRECLAIMABLE | \
331 : XFS_IRECLAIM | \
332 : XFS_NEED_INACTIVE | \
333 : XFS_INACTIVATING)
334 :
335 : /*
336 : * Per-lifetime flags need to be reset when re-using a reclaimable inode during
337 : * inode lookup. This prevents unintended behaviour on the new inode from
338 : * ocurring.
339 : */
340 : #define XFS_IRECLAIM_RESET_FLAGS \
341 : (XFS_IRECLAIMABLE | XFS_IRECLAIM | \
342 : XFS_IDIRTY_RELEASE | XFS_ITRUNCATED | XFS_NEED_INACTIVE | \
343 : XFS_INACTIVATING)
344 :
345 : /*
346 : * Flags for inode locking.
347 : * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
348 : * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
349 : */
350 : #define XFS_IOLOCK_EXCL (1u << 0)
351 : #define XFS_IOLOCK_SHARED (1u << 1)
352 : #define XFS_ILOCK_EXCL (1u << 2)
353 : #define XFS_ILOCK_SHARED (1u << 3)
354 : #define XFS_MMAPLOCK_EXCL (1u << 4)
355 : #define XFS_MMAPLOCK_SHARED (1u << 5)
356 :
357 : #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
358 : | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \
359 : | XFS_MMAPLOCK_EXCL | XFS_MMAPLOCK_SHARED)
360 :
361 : #define XFS_LOCK_FLAGS \
362 : { XFS_IOLOCK_EXCL, "IOLOCK_EXCL" }, \
363 : { XFS_IOLOCK_SHARED, "IOLOCK_SHARED" }, \
364 : { XFS_ILOCK_EXCL, "ILOCK_EXCL" }, \
365 : { XFS_ILOCK_SHARED, "ILOCK_SHARED" }, \
366 : { XFS_MMAPLOCK_EXCL, "MMAPLOCK_EXCL" }, \
367 : { XFS_MMAPLOCK_SHARED, "MMAPLOCK_SHARED" }
368 :
369 :
370 : /*
371 : * Flags for lockdep annotations.
372 : *
373 : * XFS_LOCK_PARENT - for directory operations that require locking a
374 : * parent directory inode and a child entry inode. IOLOCK requires nesting,
375 : * MMAPLOCK does not support this class, ILOCK requires a single subclass
376 : * to differentiate parent from child.
377 : *
378 : * XFS_LOCK_RTBITMAP/XFS_LOCK_RTSUM - the realtime device bitmap and summary
379 : * inodes do not participate in the normal lock order, and thus have their
380 : * own subclasses.
381 : *
382 : * XFS_LOCK_INUMORDER - for locking several inodes at the some time
383 : * with xfs_lock_inodes(). This flag is used as the starting subclass
384 : * and each subsequent lock acquired will increment the subclass by one.
385 : * However, MAX_LOCKDEP_SUBCLASSES == 8, which means we are greatly
386 : * limited to the subclasses we can represent via nesting. We need at least
387 : * 5 inodes nest depth for the ILOCK through rename, and we also have to support
388 : * XFS_ILOCK_PARENT, which gives 6 subclasses. Then we have XFS_ILOCK_RTBITMAP
389 : * and XFS_ILOCK_RTSUM, which are another 2 unique subclasses, so that's all
390 : * 8 subclasses supported by lockdep.
391 : *
392 : * This also means we have to number the sub-classes in the lowest bits of
393 : * the mask we keep, and we have to ensure we never exceed 3 bits of lockdep
394 : * mask and we can't use bit-masking to build the subclasses. What a mess.
395 : *
396 : * Bit layout:
397 : *
398 : * Bit Lock Region
399 : * 16-19 XFS_IOLOCK_SHIFT dependencies
400 : * 20-23 XFS_MMAPLOCK_SHIFT dependencies
401 : * 24-31 XFS_ILOCK_SHIFT dependencies
402 : *
403 : * IOLOCK values
404 : *
405 : * 0-3 subclass value
406 : * 4-7 unused
407 : *
408 : * MMAPLOCK values
409 : *
410 : * 0-3 subclass value
411 : * 4-7 unused
412 : *
413 : * ILOCK values
414 : * 0-4 subclass values
415 : * 5 PARENT subclass (not nestable)
416 : * 6 RTBITMAP subclass (not nestable)
417 : * 7 RTSUM subclass (not nestable)
418 : *
419 : */
420 : #define XFS_IOLOCK_SHIFT 16
421 : #define XFS_IOLOCK_MAX_SUBCLASS 3
422 : #define XFS_IOLOCK_DEP_MASK 0x000f0000u
423 :
424 : #define XFS_MMAPLOCK_SHIFT 20
425 : #define XFS_MMAPLOCK_NUMORDER 0
426 : #define XFS_MMAPLOCK_MAX_SUBCLASS 3
427 : #define XFS_MMAPLOCK_DEP_MASK 0x00f00000u
428 :
429 : #define XFS_ILOCK_SHIFT 24
430 : #define XFS_ILOCK_PARENT_VAL 5u
431 : #define XFS_ILOCK_MAX_SUBCLASS (XFS_ILOCK_PARENT_VAL - 1)
432 : #define XFS_ILOCK_RTBITMAP_VAL 6u
433 : #define XFS_ILOCK_RTSUM_VAL 7u
434 : #define XFS_ILOCK_DEP_MASK 0xff000000u
435 : #define XFS_ILOCK_PARENT (XFS_ILOCK_PARENT_VAL << XFS_ILOCK_SHIFT)
436 : #define XFS_ILOCK_RTBITMAP (XFS_ILOCK_RTBITMAP_VAL << XFS_ILOCK_SHIFT)
437 : #define XFS_ILOCK_RTSUM (XFS_ILOCK_RTSUM_VAL << XFS_ILOCK_SHIFT)
438 :
439 : #define XFS_LOCK_SUBCLASS_MASK (XFS_IOLOCK_DEP_MASK | \
440 : XFS_MMAPLOCK_DEP_MASK | \
441 : XFS_ILOCK_DEP_MASK)
442 :
443 : #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) \
444 : >> XFS_IOLOCK_SHIFT)
445 : #define XFS_MMAPLOCK_DEP(flags) (((flags) & XFS_MMAPLOCK_DEP_MASK) \
446 : >> XFS_MMAPLOCK_SHIFT)
447 : #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) \
448 : >> XFS_ILOCK_SHIFT)
449 :
450 : /*
451 : * Layouts are broken in the BREAK_WRITE case to ensure that
452 : * layout-holders do not collide with local writes. Additionally,
453 : * layouts are broken in the BREAK_UNMAP case to make sure the
454 : * layout-holder has a consistent view of the file's extent map. While
455 : * BREAK_WRITE breaks can be satisfied by recalling FL_LAYOUT leases,
456 : * BREAK_UNMAP breaks additionally require waiting for busy dax-pages to
457 : * go idle.
458 : */
459 : enum layout_break_reason {
460 : BREAK_WRITE,
461 : BREAK_UNMAP,
462 : };
463 :
464 : /*
465 : * For multiple groups support: if S_ISGID bit is set in the parent
466 : * directory, group of new file is set to that of the parent, and
467 : * new subdirectory gets S_ISGID bit from parent.
468 : */
469 : #define XFS_INHERIT_GID(pip) \
470 : (xfs_has_grpid((pip)->i_mount) || (VFS_I(pip)->i_mode & S_ISGID))
471 :
472 : int xfs_release(struct xfs_inode *ip);
473 : int xfs_inactive(struct xfs_inode *ip);
474 : int xfs_lookup(struct xfs_inode *dp, const struct xfs_name *name,
475 : struct xfs_inode **ipp, struct xfs_name *ci_name);
476 : int xfs_create(struct mnt_idmap *idmap,
477 : struct xfs_inode *dp, struct xfs_name *name,
478 : umode_t mode, dev_t rdev, bool need_xattr,
479 : struct xfs_inode **ipp);
480 : int xfs_create_tmpfile(struct mnt_idmap *idmap,
481 : struct xfs_inode *dp, umode_t mode,
482 : struct xfs_inode **ipp);
483 : int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
484 : struct xfs_inode *ip);
485 : int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
486 : struct xfs_name *target_name);
487 : int xfs_rename(struct mnt_idmap *idmap,
488 : struct xfs_inode *src_dp, struct xfs_name *src_name,
489 : struct xfs_inode *src_ip, struct xfs_inode *target_dp,
490 : struct xfs_name *target_name,
491 : struct xfs_inode *target_ip, unsigned int flags);
492 :
493 : void xfs_ilock(xfs_inode_t *, uint);
494 : int xfs_ilock_nowait(xfs_inode_t *, uint);
495 : void xfs_iunlock(xfs_inode_t *, uint);
496 : void xfs_ilock_demote(xfs_inode_t *, uint);
497 : bool xfs_isilocked(struct xfs_inode *, uint);
498 : uint xfs_ilock_data_map_shared(struct xfs_inode *);
499 : uint xfs_ilock_attr_map_shared(struct xfs_inode *);
500 :
501 : uint xfs_ip2xflags(struct xfs_inode *);
502 : int xfs_ifree(struct xfs_trans *, struct xfs_inode *);
503 : int xfs_itruncate_extents_flags(struct xfs_trans **,
504 : struct xfs_inode *, int, xfs_fsize_t, int);
505 : void xfs_iext_realloc(xfs_inode_t *, int, int);
506 :
507 : int xfs_log_force_inode(struct xfs_inode *ip);
508 : void xfs_iunpin_wait(xfs_inode_t *);
509 : #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
510 :
511 : int xfs_iflush_cluster(struct xfs_buf *);
512 : void xfs_lock_two_inodes(struct xfs_inode *ip0, uint ip0_mode,
513 : struct xfs_inode *ip1, uint ip1_mode);
514 :
515 : xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
516 : xfs_extlen_t xfs_get_cowextsz_hint(struct xfs_inode *ip);
517 :
518 : int xfs_init_new_inode(struct mnt_idmap *idmap, struct xfs_trans *tp,
519 : struct xfs_inode *pip, xfs_ino_t ino, umode_t mode,
520 : xfs_nlink_t nlink, dev_t rdev, prid_t prid, bool init_xattrs,
521 : struct xfs_inode **ipp);
522 :
523 : static inline int
524 : xfs_itruncate_extents(
525 : struct xfs_trans **tpp,
526 : struct xfs_inode *ip,
527 : int whichfork,
528 : xfs_fsize_t new_size)
529 : {
530 18933918 : return xfs_itruncate_extents_flags(tpp, ip, whichfork, new_size, 0);
531 : }
532 :
533 : /* from xfs_file.c */
534 : int xfs_break_dax_layouts(struct inode *inode, bool *retry);
535 : int xfs_break_layouts(struct inode *inode, uint *iolock,
536 : enum layout_break_reason reason);
537 :
538 : /* from xfs_iops.c */
539 : extern void xfs_setup_inode(struct xfs_inode *ip);
540 : extern void xfs_setup_iops(struct xfs_inode *ip);
541 : extern void xfs_diflags_to_iflags(struct xfs_inode *ip, bool init);
542 :
543 : /*
544 : * When setting up a newly allocated inode, we need to call
545 : * xfs_finish_inode_setup() once the inode is fully instantiated at
546 : * the VFS level to prevent the rest of the world seeing the inode
547 : * before we've completed instantiation. Otherwise we can do it
548 : * the moment the inode lookup is complete.
549 : */
550 1085653003 : static inline void xfs_finish_inode_setup(struct xfs_inode *ip)
551 : {
552 1085653003 : xfs_iflags_clear(ip, XFS_INEW);
553 1086925280 : barrier();
554 1086912914 : unlock_new_inode(VFS_I(ip));
555 1086924304 : }
556 :
557 1001428501 : static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
558 : {
559 1001428501 : xfs_setup_inode(ip);
560 1001505044 : xfs_setup_iops(ip);
561 1001493962 : xfs_finish_inode_setup(ip);
562 1002008315 : }
563 :
564 : void xfs_irele(struct xfs_inode *ip);
565 :
566 : extern struct kmem_cache *xfs_inode_cache;
567 :
568 : /* The default CoW extent size hint. */
569 : #define XFS_DEFAULT_COWEXTSZ_HINT 32
570 :
571 : bool xfs_inode_needs_inactive(struct xfs_inode *ip);
572 :
573 : void xfs_end_io(struct work_struct *work);
574 :
575 : int xfs_ilock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
576 : void xfs_iunlock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
577 :
578 : #endif /* __XFS_INODE_H__ */
|
