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Merge tag 'pci-v6.16-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
[linux-block.git] / fs / ufs / inode.c
... / ...
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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/fs/ufs/inode.c
4 *
5 * Copyright (C) 1998
6 * Daniel Pirkl <daniel.pirkl@email.cz>
7 * Charles University, Faculty of Mathematics and Physics
8 *
9 * from
10 *
11 * linux/fs/ext2/inode.c
12 *
13 * Copyright (C) 1992, 1993, 1994, 1995
14 * Remy Card (card@masi.ibp.fr)
15 * Laboratoire MASI - Institut Blaise Pascal
16 * Universite Pierre et Marie Curie (Paris VI)
17 *
18 * from
19 *
20 * linux/fs/minix/inode.c
21 *
22 * Copyright (C) 1991, 1992 Linus Torvalds
23 *
24 * Goal-directed block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
25 * Big-endian to little-endian byte-swapping/bitmaps by
26 * David S. Miller (davem@caip.rutgers.edu), 1995
27 */
28
29#include <linux/uaccess.h>
30
31#include <linux/errno.h>
32#include <linux/fs.h>
33#include <linux/time.h>
34#include <linux/stat.h>
35#include <linux/string.h>
36#include <linux/mm.h>
37#include <linux/buffer_head.h>
38#include <linux/mpage.h>
39#include <linux/writeback.h>
40#include <linux/iversion.h>
41
42#include "ufs_fs.h"
43#include "ufs.h"
44#include "swab.h"
45#include "util.h"
46
47static int ufs_block_to_path(struct inode *inode, sector_t i_block, unsigned offsets[4])
48{
49 struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
50 int ptrs = uspi->s_apb;
51 int ptrs_bits = uspi->s_apbshift;
52 const long direct_blocks = UFS_NDADDR,
53 indirect_blocks = ptrs,
54 double_blocks = (1 << (ptrs_bits * 2));
55 int n = 0;
56
57
58 UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks);
59 if (i_block < direct_blocks) {
60 offsets[n++] = i_block;
61 } else if ((i_block -= direct_blocks) < indirect_blocks) {
62 offsets[n++] = UFS_IND_BLOCK;
63 offsets[n++] = i_block;
64 } else if ((i_block -= indirect_blocks) < double_blocks) {
65 offsets[n++] = UFS_DIND_BLOCK;
66 offsets[n++] = i_block >> ptrs_bits;
67 offsets[n++] = i_block & (ptrs - 1);
68 } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
69 offsets[n++] = UFS_TIND_BLOCK;
70 offsets[n++] = i_block >> (ptrs_bits * 2);
71 offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
72 offsets[n++] = i_block & (ptrs - 1);
73 } else {
74 ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");
75 }
76 return n;
77}
78
79typedef struct {
80 void *p;
81 union {
82 __fs32 key32;
83 __fs64 key64;
84 };
85 struct buffer_head *bh;
86} Indirect;
87
88static inline int grow_chain32(struct ufs_inode_info *ufsi,
89 struct buffer_head *bh, __fs32 *v,
90 Indirect *from, Indirect *to)
91{
92 Indirect *p;
93 unsigned seq;
94 to->bh = bh;
95 do {
96 seq = read_seqbegin(&ufsi->meta_lock);
97 to->key32 = *(__fs32 *)(to->p = v);
98 for (p = from; p <= to && p->key32 == *(__fs32 *)p->p; p++)
99 ;
100 } while (read_seqretry(&ufsi->meta_lock, seq));
101 return (p > to);
102}
103
104static inline int grow_chain64(struct ufs_inode_info *ufsi,
105 struct buffer_head *bh, __fs64 *v,
106 Indirect *from, Indirect *to)
107{
108 Indirect *p;
109 unsigned seq;
110 to->bh = bh;
111 do {
112 seq = read_seqbegin(&ufsi->meta_lock);
113 to->key64 = *(__fs64 *)(to->p = v);
114 for (p = from; p <= to && p->key64 == *(__fs64 *)p->p; p++)
115 ;
116 } while (read_seqretry(&ufsi->meta_lock, seq));
117 return (p > to);
118}
119
120/*
121 * Returns the location of the fragment from
122 * the beginning of the filesystem.
123 */
124
125static u64 ufs_frag_map(struct inode *inode, unsigned offsets[4], int depth)
126{
127 struct ufs_inode_info *ufsi = UFS_I(inode);
128 struct super_block *sb = inode->i_sb;
129 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
130 u64 mask = (u64) uspi->s_apbmask>>uspi->s_fpbshift;
131 int shift = uspi->s_apbshift-uspi->s_fpbshift;
132 Indirect chain[4], *q = chain;
133 unsigned *p;
134 unsigned flags = UFS_SB(sb)->s_flags;
135 u64 res = 0;
136
137 UFSD(": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",
138 uspi->s_fpbshift, uspi->s_apbmask,
139 (unsigned long long)mask);
140
141 if (depth == 0)
142 goto no_block;
143
144again:
145 p = offsets;
146
147 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
148 goto ufs2;
149
150 if (!grow_chain32(ufsi, NULL, &ufsi->i_u1.i_data[*p++], chain, q))
151 goto changed;
152 if (!q->key32)
153 goto no_block;
154 while (--depth) {
155 __fs32 *ptr;
156 struct buffer_head *bh;
157 unsigned n = *p++;
158
159 bh = sb_bread(sb, uspi->s_sbbase +
160 fs32_to_cpu(sb, q->key32) + (n>>shift));
161 if (!bh)
162 goto no_block;
163 ptr = (__fs32 *)bh->b_data + (n & mask);
164 if (!grow_chain32(ufsi, bh, ptr, chain, ++q))
165 goto changed;
166 if (!q->key32)
167 goto no_block;
168 }
169 res = fs32_to_cpu(sb, q->key32);
170 goto found;
171
172ufs2:
173 if (!grow_chain64(ufsi, NULL, &ufsi->i_u1.u2_i_data[*p++], chain, q))
174 goto changed;
175 if (!q->key64)
176 goto no_block;
177
178 while (--depth) {
179 __fs64 *ptr;
180 struct buffer_head *bh;
181 unsigned n = *p++;
182
183 bh = sb_bread(sb, uspi->s_sbbase +
184 fs64_to_cpu(sb, q->key64) + (n>>shift));
185 if (!bh)
186 goto no_block;
187 ptr = (__fs64 *)bh->b_data + (n & mask);
188 if (!grow_chain64(ufsi, bh, ptr, chain, ++q))
189 goto changed;
190 if (!q->key64)
191 goto no_block;
192 }
193 res = fs64_to_cpu(sb, q->key64);
194found:
195 res += uspi->s_sbbase;
196no_block:
197 while (q > chain) {
198 brelse(q->bh);
199 q--;
200 }
201 return res;
202
203changed:
204 while (q > chain) {
205 brelse(q->bh);
206 q--;
207 }
208 goto again;
209}
210
211/*
212 * Unpacking tails: we have a file with partial final block and
213 * we had been asked to extend it. If the fragment being written
214 * is within the same block, we need to extend the tail just to cover
215 * that fragment. Otherwise the tail is extended to full block.
216 *
217 * Note that we might need to create a _new_ tail, but that will
218 * be handled elsewhere; this is strictly for resizing old
219 * ones.
220 */
221static bool
222ufs_extend_tail(struct inode *inode, u64 writes_to,
223 int *err, struct folio *locked_folio)
224{
225 struct ufs_inode_info *ufsi = UFS_I(inode);
226 struct super_block *sb = inode->i_sb;
227 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
228 unsigned lastfrag = ufsi->i_lastfrag; /* it's a short file, so unsigned is enough */
229 unsigned block = ufs_fragstoblks(lastfrag);
230 unsigned new_size;
231 void *p;
232 u64 tmp;
233
234 if (writes_to < (lastfrag | uspi->s_fpbmask))
235 new_size = (writes_to & uspi->s_fpbmask) + 1;
236 else
237 new_size = uspi->s_fpb;
238
239 p = ufs_get_direct_data_ptr(uspi, ufsi, block);
240 tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),
241 new_size - (lastfrag & uspi->s_fpbmask), err,
242 locked_folio);
243 return tmp != 0;
244}
245
246/**
247 * ufs_inode_getfrag() - allocate new fragment(s)
248 * @inode: pointer to inode
249 * @index: number of block pointer within the inode's array.
250 * @new_fragment: number of new allocated fragment(s)
251 * @err: we set it if something wrong
252 * @new: we set it if we allocate new block
253 * @locked_folio: for ufs_new_fragments()
254 */
255static u64 ufs_inode_getfrag(struct inode *inode, unsigned index,
256 sector_t new_fragment, int *err,
257 int *new, struct folio *locked_folio)
258{
259 struct ufs_inode_info *ufsi = UFS_I(inode);
260 struct super_block *sb = inode->i_sb;
261 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
262 u64 tmp, goal, lastfrag;
263 unsigned nfrags = uspi->s_fpb;
264 void *p;
265
266 p = ufs_get_direct_data_ptr(uspi, ufsi, index);
267 tmp = ufs_data_ptr_to_cpu(sb, p);
268 if (tmp)
269 goto out;
270
271 lastfrag = ufsi->i_lastfrag;
272
273 /* will that be a new tail? */
274 if (new_fragment < UFS_NDIR_FRAGMENT && new_fragment >= lastfrag)
275 nfrags = (new_fragment & uspi->s_fpbmask) + 1;
276
277 goal = 0;
278 if (index) {
279 goal = ufs_data_ptr_to_cpu(sb,
280 ufs_get_direct_data_ptr(uspi, ufsi, index - 1));
281 if (goal)
282 goal += uspi->s_fpb;
283 }
284 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),
285 goal, nfrags, err, locked_folio);
286
287 if (!tmp) {
288 *err = -ENOSPC;
289 return 0;
290 }
291
292 if (new)
293 *new = 1;
294 inode_set_ctime_current(inode);
295 if (IS_SYNC(inode))
296 ufs_sync_inode (inode);
297 mark_inode_dirty(inode);
298out:
299 return tmp + uspi->s_sbbase;
300}
301
302/**
303 * ufs_inode_getblock() - allocate new block
304 * @inode: pointer to inode
305 * @ind_block: block number of the indirect block
306 * @index: number of pointer within the indirect block
307 * @new_fragment: number of new allocated fragment
308 * (block will hold this fragment and also uspi->s_fpb-1)
309 * @err: see ufs_inode_getfrag()
310 * @new: see ufs_inode_getfrag()
311 * @locked_folio: see ufs_inode_getfrag()
312 */
313static u64 ufs_inode_getblock(struct inode *inode, u64 ind_block,
314 unsigned index, sector_t new_fragment, int *err,
315 int *new, struct folio *locked_folio)
316{
317 struct super_block *sb = inode->i_sb;
318 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
319 int shift = uspi->s_apbshift - uspi->s_fpbshift;
320 u64 tmp = 0, goal;
321 struct buffer_head *bh;
322 void *p;
323
324 if (!ind_block)
325 return 0;
326
327 bh = sb_bread(sb, ind_block + (index >> shift));
328 if (unlikely(!bh)) {
329 *err = -EIO;
330 return 0;
331 }
332
333 index &= uspi->s_apbmask >> uspi->s_fpbshift;
334 if (uspi->fs_magic == UFS2_MAGIC)
335 p = (__fs64 *)bh->b_data + index;
336 else
337 p = (__fs32 *)bh->b_data + index;
338
339 tmp = ufs_data_ptr_to_cpu(sb, p);
340 if (tmp)
341 goto out;
342
343 if (index && (uspi->fs_magic == UFS2_MAGIC ?
344 (tmp = fs64_to_cpu(sb, ((__fs64 *)bh->b_data)[index-1])) :
345 (tmp = fs32_to_cpu(sb, ((__fs32 *)bh->b_data)[index-1]))))
346 goal = tmp + uspi->s_fpb;
347 else
348 goal = bh->b_blocknr + uspi->s_fpb;
349 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,
350 uspi->s_fpb, err, locked_folio);
351 if (!tmp)
352 goto out;
353
354 if (new)
355 *new = 1;
356
357 mark_buffer_dirty(bh);
358 if (IS_SYNC(inode))
359 sync_dirty_buffer(bh);
360 inode_set_ctime_current(inode);
361 mark_inode_dirty(inode);
362out:
363 brelse (bh);
364 UFSD("EXIT\n");
365 if (tmp)
366 tmp += uspi->s_sbbase;
367 return tmp;
368}
369
370/**
371 * ufs_getfrag_block() - `get_block_t' function, interface between UFS and
372 * read_folio, writepages and so on
373 */
374
375static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create)
376{
377 struct super_block *sb = inode->i_sb;
378 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
379 int err = 0, new = 0;
380 unsigned offsets[4];
381 int depth = ufs_block_to_path(inode, fragment >> uspi->s_fpbshift, offsets);
382 u64 phys64 = 0;
383 unsigned frag = fragment & uspi->s_fpbmask;
384
385 phys64 = ufs_frag_map(inode, offsets, depth);
386 if (!create)
387 goto done;
388
389 if (phys64) {
390 if (fragment >= UFS_NDIR_FRAGMENT)
391 goto done;
392 read_seqlock_excl(&UFS_I(inode)->meta_lock);
393 if (fragment < UFS_I(inode)->i_lastfrag) {
394 read_sequnlock_excl(&UFS_I(inode)->meta_lock);
395 goto done;
396 }
397 read_sequnlock_excl(&UFS_I(inode)->meta_lock);
398 }
399 /* This code entered only while writing ....? */
400
401 mutex_lock(&UFS_I(inode)->truncate_mutex);
402
403 UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
404 if (unlikely(!depth)) {
405 ufs_warning(sb, "ufs_get_block", "block > big");
406 err = -EIO;
407 goto out;
408 }
409
410 if (UFS_I(inode)->i_lastfrag < UFS_NDIR_FRAGMENT) {
411 unsigned lastfrag = UFS_I(inode)->i_lastfrag;
412 unsigned tailfrags = lastfrag & uspi->s_fpbmask;
413 if (tailfrags && fragment >= lastfrag) {
414 if (!ufs_extend_tail(inode, fragment,
415 &err, bh_result->b_folio))
416 goto out;
417 }
418 }
419
420 if (depth == 1) {
421 phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
422 &err, &new, bh_result->b_folio);
423 } else {
424 int i;
425 phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
426 &err, NULL, NULL);
427 for (i = 1; i < depth - 1; i++)
428 phys64 = ufs_inode_getblock(inode, phys64, offsets[i],
429 fragment, &err, NULL, NULL);
430 phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 1],
431 fragment, &err, &new, bh_result->b_folio);
432 }
433out:
434 if (phys64) {
435 phys64 += frag;
436 map_bh(bh_result, sb, phys64);
437 if (new)
438 set_buffer_new(bh_result);
439 }
440 mutex_unlock(&UFS_I(inode)->truncate_mutex);
441 return err;
442
443done:
444 if (phys64)
445 map_bh(bh_result, sb, phys64 + frag);
446 return 0;
447}
448
449static int ufs_writepages(struct address_space *mapping,
450 struct writeback_control *wbc)
451{
452 return mpage_writepages(mapping, wbc, ufs_getfrag_block);
453}
454
455static int ufs_read_folio(struct file *file, struct folio *folio)
456{
457 return block_read_full_folio(folio, ufs_getfrag_block);
458}
459
460int ufs_prepare_chunk(struct folio *folio, loff_t pos, unsigned len)
461{
462 return __block_write_begin(folio, pos, len, ufs_getfrag_block);
463}
464
465static void ufs_truncate_blocks(struct inode *);
466
467static void ufs_write_failed(struct address_space *mapping, loff_t to)
468{
469 struct inode *inode = mapping->host;
470
471 if (to > inode->i_size) {
472 truncate_pagecache(inode, inode->i_size);
473 ufs_truncate_blocks(inode);
474 }
475}
476
477static int ufs_write_begin(struct file *file, struct address_space *mapping,
478 loff_t pos, unsigned len,
479 struct folio **foliop, void **fsdata)
480{
481 int ret;
482
483 ret = block_write_begin(mapping, pos, len, foliop, ufs_getfrag_block);
484 if (unlikely(ret))
485 ufs_write_failed(mapping, pos + len);
486
487 return ret;
488}
489
490static int ufs_write_end(struct file *file, struct address_space *mapping,
491 loff_t pos, unsigned len, unsigned copied,
492 struct folio *folio, void *fsdata)
493{
494 int ret;
495
496 ret = generic_write_end(file, mapping, pos, len, copied, folio, fsdata);
497 if (ret < len)
498 ufs_write_failed(mapping, pos + len);
499 return ret;
500}
501
502static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
503{
504 return generic_block_bmap(mapping,block,ufs_getfrag_block);
505}
506
507const struct address_space_operations ufs_aops = {
508 .dirty_folio = block_dirty_folio,
509 .invalidate_folio = block_invalidate_folio,
510 .read_folio = ufs_read_folio,
511 .writepages = ufs_writepages,
512 .write_begin = ufs_write_begin,
513 .write_end = ufs_write_end,
514 .migrate_folio = buffer_migrate_folio,
515 .bmap = ufs_bmap
516};
517
518static void ufs_set_inode_ops(struct inode *inode)
519{
520 if (S_ISREG(inode->i_mode)) {
521 inode->i_op = &ufs_file_inode_operations;
522 inode->i_fop = &ufs_file_operations;
523 inode->i_mapping->a_ops = &ufs_aops;
524 } else if (S_ISDIR(inode->i_mode)) {
525 inode->i_op = &ufs_dir_inode_operations;
526 inode->i_fop = &ufs_dir_operations;
527 inode->i_mapping->a_ops = &ufs_aops;
528 } else if (S_ISLNK(inode->i_mode)) {
529 if (!inode->i_blocks) {
530 inode->i_link = (char *)UFS_I(inode)->i_u1.i_symlink;
531 inode->i_op = &simple_symlink_inode_operations;
532 } else {
533 inode->i_mapping->a_ops = &ufs_aops;
534 inode->i_op = &page_symlink_inode_operations;
535 inode_nohighmem(inode);
536 }
537 } else
538 init_special_inode(inode, inode->i_mode,
539 ufs_get_inode_dev(inode->i_sb, UFS_I(inode)));
540}
541
542static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
543{
544 struct ufs_inode_info *ufsi = UFS_I(inode);
545 struct super_block *sb = inode->i_sb;
546 umode_t mode;
547
548 /*
549 * Copy data to the in-core inode.
550 */
551 inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
552 set_nlink(inode, fs16_to_cpu(sb, ufs_inode->ui_nlink));
553 if (inode->i_nlink == 0)
554 return -ESTALE;
555
556 /*
557 * Linux now has 32-bit uid and gid, so we can support EFT.
558 */
559 i_uid_write(inode, ufs_get_inode_uid(sb, ufs_inode));
560 i_gid_write(inode, ufs_get_inode_gid(sb, ufs_inode));
561
562 inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);
563 inode_set_atime(inode,
564 (signed)fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec),
565 0);
566 inode_set_ctime(inode,
567 (signed)fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec),
568 0);
569 inode_set_mtime(inode,
570 (signed)fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec),
571 0);
572 inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
573 inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen);
574 ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
575 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
576 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
577
578
579 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
580 memcpy(ufsi->i_u1.i_data, &ufs_inode->ui_u2.ui_addr,
581 sizeof(ufs_inode->ui_u2.ui_addr));
582 } else {
583 memcpy(ufsi->i_u1.i_symlink, ufs_inode->ui_u2.ui_symlink,
584 sizeof(ufs_inode->ui_u2.ui_symlink) - 1);
585 ufsi->i_u1.i_symlink[sizeof(ufs_inode->ui_u2.ui_symlink) - 1] = 0;
586 }
587 return 0;
588}
589
590static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
591{
592 struct ufs_inode_info *ufsi = UFS_I(inode);
593 struct super_block *sb = inode->i_sb;
594 umode_t mode;
595
596 UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
597 /*
598 * Copy data to the in-core inode.
599 */
600 inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
601 set_nlink(inode, fs16_to_cpu(sb, ufs2_inode->ui_nlink));
602 if (inode->i_nlink == 0)
603 return -ESTALE;
604
605 /*
606 * Linux now has 32-bit uid and gid, so we can support EFT.
607 */
608 i_uid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_uid));
609 i_gid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_gid));
610
611 inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);
612 inode_set_atime(inode, fs64_to_cpu(sb, ufs2_inode->ui_atime),
613 fs32_to_cpu(sb, ufs2_inode->ui_atimensec));
614 inode_set_ctime(inode, fs64_to_cpu(sb, ufs2_inode->ui_ctime),
615 fs32_to_cpu(sb, ufs2_inode->ui_ctimensec));
616 inode_set_mtime(inode, fs64_to_cpu(sb, ufs2_inode->ui_mtime),
617 fs32_to_cpu(sb, ufs2_inode->ui_mtimensec));
618 inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
619 inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen);
620 ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
621 /*
622 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
623 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
624 */
625
626 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
627 memcpy(ufsi->i_u1.u2_i_data, &ufs2_inode->ui_u2.ui_addr,
628 sizeof(ufs2_inode->ui_u2.ui_addr));
629 } else {
630 memcpy(ufsi->i_u1.i_symlink, ufs2_inode->ui_u2.ui_symlink,
631 sizeof(ufs2_inode->ui_u2.ui_symlink) - 1);
632 ufsi->i_u1.i_symlink[sizeof(ufs2_inode->ui_u2.ui_symlink) - 1] = 0;
633 }
634 return 0;
635}
636
637struct inode *ufs_iget(struct super_block *sb, unsigned long ino)
638{
639 struct ufs_inode_info *ufsi;
640 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
641 struct buffer_head * bh;
642 struct inode *inode;
643 int err = -EIO;
644
645 UFSD("ENTER, ino %lu\n", ino);
646
647 if (ino < UFS_ROOTINO || ino > (uspi->s_ncg * uspi->s_ipg)) {
648 ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n",
649 ino);
650 return ERR_PTR(-EIO);
651 }
652
653 inode = iget_locked(sb, ino);
654 if (!inode)
655 return ERR_PTR(-ENOMEM);
656 if (!(inode->i_state & I_NEW))
657 return inode;
658
659 ufsi = UFS_I(inode);
660
661 bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
662 if (!bh) {
663 ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n",
664 inode->i_ino);
665 goto bad_inode;
666 }
667 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
668 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
669
670 err = ufs2_read_inode(inode,
671 ufs2_inode + ufs_inotofsbo(inode->i_ino));
672 } else {
673 struct ufs_inode *ufs_inode = (struct ufs_inode *)bh->b_data;
674
675 err = ufs1_read_inode(inode,
676 ufs_inode + ufs_inotofsbo(inode->i_ino));
677 }
678 brelse(bh);
679 if (err)
680 goto bad_inode;
681
682 inode_inc_iversion(inode);
683 ufsi->i_lastfrag =
684 (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
685 ufsi->i_dir_start_lookup = 0;
686 ufsi->i_osync = 0;
687
688 ufs_set_inode_ops(inode);
689
690 UFSD("EXIT\n");
691 unlock_new_inode(inode);
692 return inode;
693
694bad_inode:
695 iget_failed(inode);
696 return ERR_PTR(err);
697}
698
699static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
700{
701 struct super_block *sb = inode->i_sb;
702 struct ufs_inode_info *ufsi = UFS_I(inode);
703
704 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
705 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
706
707 ufs_set_inode_uid(sb, ufs_inode, i_uid_read(inode));
708 ufs_set_inode_gid(sb, ufs_inode, i_gid_read(inode));
709
710 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
711 ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb,
712 inode_get_atime_sec(inode));
713 ufs_inode->ui_atime.tv_usec = 0;
714 ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb,
715 inode_get_ctime_sec(inode));
716 ufs_inode->ui_ctime.tv_usec = 0;
717 ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb,
718 inode_get_mtime_sec(inode));
719 ufs_inode->ui_mtime.tv_usec = 0;
720 ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
721 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
722 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
723
724 if ((UFS_SB(sb)->s_flags & UFS_UID_MASK) == UFS_UID_EFT) {
725 ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
726 ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
727 }
728
729 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
730 /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
731 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
732 } else if (inode->i_blocks) {
733 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.i_data,
734 sizeof(ufs_inode->ui_u2.ui_addr));
735 }
736 else {
737 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
738 sizeof(ufs_inode->ui_u2.ui_symlink));
739 }
740
741 if (!inode->i_nlink)
742 memset (ufs_inode, 0, sizeof(struct ufs_inode));
743}
744
745static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
746{
747 struct super_block *sb = inode->i_sb;
748 struct ufs_inode_info *ufsi = UFS_I(inode);
749
750 UFSD("ENTER\n");
751 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
752 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
753
754 ufs_inode->ui_uid = cpu_to_fs32(sb, i_uid_read(inode));
755 ufs_inode->ui_gid = cpu_to_fs32(sb, i_gid_read(inode));
756
757 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
758 ufs_inode->ui_atime = cpu_to_fs64(sb, inode_get_atime_sec(inode));
759 ufs_inode->ui_atimensec = cpu_to_fs32(sb,
760 inode_get_atime_nsec(inode));
761 ufs_inode->ui_ctime = cpu_to_fs64(sb, inode_get_ctime_sec(inode));
762 ufs_inode->ui_ctimensec = cpu_to_fs32(sb,
763 inode_get_ctime_nsec(inode));
764 ufs_inode->ui_mtime = cpu_to_fs64(sb, inode_get_mtime_sec(inode));
765 ufs_inode->ui_mtimensec = cpu_to_fs32(sb,
766 inode_get_mtime_nsec(inode));
767
768 ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks);
769 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
770 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
771
772 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
773 /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
774 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0];
775 } else if (inode->i_blocks) {
776 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.u2_i_data,
777 sizeof(ufs_inode->ui_u2.ui_addr));
778 } else {
779 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
780 sizeof(ufs_inode->ui_u2.ui_symlink));
781 }
782
783 if (!inode->i_nlink)
784 memset (ufs_inode, 0, sizeof(struct ufs2_inode));
785 UFSD("EXIT\n");
786}
787
788static int ufs_update_inode(struct inode * inode, int do_sync)
789{
790 struct super_block *sb = inode->i_sb;
791 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
792 struct buffer_head * bh;
793
794 UFSD("ENTER, ino %lu\n", inode->i_ino);
795
796 if (inode->i_ino < UFS_ROOTINO ||
797 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
798 ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
799 return -1;
800 }
801
802 bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
803 if (!bh) {
804 ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
805 return -1;
806 }
807 if (uspi->fs_magic == UFS2_MAGIC) {
808 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
809
810 ufs2_update_inode(inode,
811 ufs2_inode + ufs_inotofsbo(inode->i_ino));
812 } else {
813 struct ufs_inode *ufs_inode = (struct ufs_inode *) bh->b_data;
814
815 ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));
816 }
817
818 mark_buffer_dirty(bh);
819 if (do_sync)
820 sync_dirty_buffer(bh);
821 brelse (bh);
822
823 UFSD("EXIT\n");
824 return 0;
825}
826
827int ufs_write_inode(struct inode *inode, struct writeback_control *wbc)
828{
829 return ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
830}
831
832int ufs_sync_inode (struct inode *inode)
833{
834 return ufs_update_inode (inode, 1);
835}
836
837void ufs_evict_inode(struct inode * inode)
838{
839 int want_delete = 0;
840
841 if (!inode->i_nlink && !is_bad_inode(inode))
842 want_delete = 1;
843
844 truncate_inode_pages_final(&inode->i_data);
845 if (want_delete) {
846 inode->i_size = 0;
847 if (inode->i_blocks &&
848 (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
849 S_ISLNK(inode->i_mode)))
850 ufs_truncate_blocks(inode);
851 ufs_update_inode(inode, inode_needs_sync(inode));
852 }
853
854 invalidate_inode_buffers(inode);
855 clear_inode(inode);
856
857 if (want_delete)
858 ufs_free_inode(inode);
859}
860
861struct to_free {
862 struct inode *inode;
863 u64 to;
864 unsigned count;
865};
866
867static inline void free_data(struct to_free *ctx, u64 from, unsigned count)
868{
869 if (ctx->count && ctx->to != from) {
870 ufs_free_blocks(ctx->inode, ctx->to - ctx->count, ctx->count);
871 ctx->count = 0;
872 }
873 ctx->count += count;
874 ctx->to = from + count;
875}
876
877#define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
878
879/*
880 * used only for truncation down to direct blocks.
881 */
882static void ufs_trunc_direct(struct inode *inode)
883{
884 struct ufs_inode_info *ufsi = UFS_I(inode);
885 struct super_block *sb = inode->i_sb;
886 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
887 unsigned int new_frags, old_frags;
888 unsigned int old_slot, new_slot;
889 unsigned int old_tail, new_tail;
890 struct to_free ctx = {.inode = inode};
891
892 UFSD("ENTER: ino %lu\n", inode->i_ino);
893
894 new_frags = DIRECT_FRAGMENT;
895 // new_frags = first fragment past the new EOF
896 old_frags = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag);
897 // old_frags = first fragment past the old EOF or covered by indirects
898
899 if (new_frags >= old_frags) // expanding - nothing to free
900 goto done;
901
902 old_tail = ufs_fragnum(old_frags);
903 old_slot = ufs_fragstoblks(old_frags);
904 new_tail = ufs_fragnum(new_frags);
905 new_slot = ufs_fragstoblks(new_frags);
906
907 if (old_slot == new_slot) { // old_tail > 0
908 void *p = ufs_get_direct_data_ptr(uspi, ufsi, old_slot);
909 u64 tmp = ufs_data_ptr_to_cpu(sb, p);
910 if (!tmp)
911 ufs_panic(sb, __func__, "internal error");
912 if (!new_tail) {
913 write_seqlock(&ufsi->meta_lock);
914 ufs_data_ptr_clear(uspi, p);
915 write_sequnlock(&ufsi->meta_lock);
916 }
917 ufs_free_fragments(inode, tmp + new_tail, old_tail - new_tail);
918 } else {
919 unsigned int slot = new_slot;
920
921 if (new_tail) {
922 void *p = ufs_get_direct_data_ptr(uspi, ufsi, slot++);
923 u64 tmp = ufs_data_ptr_to_cpu(sb, p);
924 if (!tmp)
925 ufs_panic(sb, __func__, "internal error");
926
927 ufs_free_fragments(inode, tmp + new_tail,
928 uspi->s_fpb - new_tail);
929 }
930 while (slot < old_slot) {
931 void *p = ufs_get_direct_data_ptr(uspi, ufsi, slot++);
932 u64 tmp = ufs_data_ptr_to_cpu(sb, p);
933 if (!tmp)
934 continue;
935 write_seqlock(&ufsi->meta_lock);
936 ufs_data_ptr_clear(uspi, p);
937 write_sequnlock(&ufsi->meta_lock);
938
939 free_data(&ctx, tmp, uspi->s_fpb);
940 }
941
942 free_data(&ctx, 0, 0);
943
944 if (old_tail) {
945 void *p = ufs_get_direct_data_ptr(uspi, ufsi, slot);
946 u64 tmp = ufs_data_ptr_to_cpu(sb, p);
947 if (!tmp)
948 ufs_panic(sb, __func__, "internal error");
949 write_seqlock(&ufsi->meta_lock);
950 ufs_data_ptr_clear(uspi, p);
951 write_sequnlock(&ufsi->meta_lock);
952
953 ufs_free_fragments(inode, tmp, old_tail);
954 }
955 }
956done:
957 UFSD("EXIT: ino %lu\n", inode->i_ino);
958}
959
960static void free_full_branch(struct inode *inode, u64 ind_block, int depth)
961{
962 struct super_block *sb = inode->i_sb;
963 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
964 struct ufs_buffer_head *ubh = ubh_bread(sb, ind_block, uspi->s_bsize);
965 unsigned i;
966
967 if (!ubh)
968 return;
969
970 if (--depth) {
971 for (i = 0; i < uspi->s_apb; i++) {
972 void *p = ubh_get_data_ptr(uspi, ubh, i);
973 u64 block = ufs_data_ptr_to_cpu(sb, p);
974 if (block)
975 free_full_branch(inode, block, depth);
976 }
977 } else {
978 struct to_free ctx = {.inode = inode};
979
980 for (i = 0; i < uspi->s_apb; i++) {
981 void *p = ubh_get_data_ptr(uspi, ubh, i);
982 u64 block = ufs_data_ptr_to_cpu(sb, p);
983 if (block)
984 free_data(&ctx, block, uspi->s_fpb);
985 }
986 free_data(&ctx, 0, 0);
987 }
988
989 ubh_bforget(ubh);
990 ufs_free_blocks(inode, ind_block, uspi->s_fpb);
991}
992
993static void free_branch_tail(struct inode *inode, unsigned from, struct ufs_buffer_head *ubh, int depth)
994{
995 struct super_block *sb = inode->i_sb;
996 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
997 unsigned i;
998
999 if (--depth) {
1000 for (i = from; i < uspi->s_apb ; i++) {
1001 void *p = ubh_get_data_ptr(uspi, ubh, i);
1002 u64 block = ufs_data_ptr_to_cpu(sb, p);
1003 if (block) {
1004 write_seqlock(&UFS_I(inode)->meta_lock);
1005 ufs_data_ptr_clear(uspi, p);
1006 write_sequnlock(&UFS_I(inode)->meta_lock);
1007 ubh_mark_buffer_dirty(ubh);
1008 free_full_branch(inode, block, depth);
1009 }
1010 }
1011 } else {
1012 struct to_free ctx = {.inode = inode};
1013
1014 for (i = from; i < uspi->s_apb; i++) {
1015 void *p = ubh_get_data_ptr(uspi, ubh, i);
1016 u64 block = ufs_data_ptr_to_cpu(sb, p);
1017 if (block) {
1018 write_seqlock(&UFS_I(inode)->meta_lock);
1019 ufs_data_ptr_clear(uspi, p);
1020 write_sequnlock(&UFS_I(inode)->meta_lock);
1021 ubh_mark_buffer_dirty(ubh);
1022 free_data(&ctx, block, uspi->s_fpb);
1023 }
1024 }
1025 free_data(&ctx, 0, 0);
1026 }
1027 if (IS_SYNC(inode) && ubh_buffer_dirty(ubh))
1028 ubh_sync_block(ubh);
1029 ubh_brelse(ubh);
1030}
1031
1032static int ufs_alloc_lastblock(struct inode *inode, loff_t size)
1033{
1034 int err = 0;
1035 struct super_block *sb = inode->i_sb;
1036 struct address_space *mapping = inode->i_mapping;
1037 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1038 unsigned i, end;
1039 sector_t lastfrag;
1040 struct folio *folio;
1041 struct buffer_head *bh;
1042 u64 phys64;
1043
1044 lastfrag = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
1045
1046 if (!lastfrag)
1047 goto out;
1048
1049 lastfrag--;
1050
1051 folio = ufs_get_locked_folio(mapping, lastfrag >>
1052 (PAGE_SHIFT - inode->i_blkbits));
1053 if (IS_ERR(folio)) {
1054 err = -EIO;
1055 goto out;
1056 }
1057
1058 end = lastfrag & ((1 << (PAGE_SHIFT - inode->i_blkbits)) - 1);
1059 bh = folio_buffers(folio);
1060 for (i = 0; i < end; ++i)
1061 bh = bh->b_this_page;
1062
1063 err = ufs_getfrag_block(inode, lastfrag, bh, 1);
1064
1065 if (unlikely(err))
1066 goto out_unlock;
1067
1068 if (buffer_new(bh)) {
1069 clear_buffer_new(bh);
1070 clean_bdev_bh_alias(bh);
1071 /*
1072 * we do not zeroize fragment, because of
1073 * if it maped to hole, it already contains zeroes
1074 */
1075 set_buffer_uptodate(bh);
1076 mark_buffer_dirty(bh);
1077 folio_mark_dirty(folio);
1078 }
1079
1080 if (lastfrag >= UFS_IND_FRAGMENT) {
1081 end = uspi->s_fpb - ufs_fragnum(lastfrag) - 1;
1082 phys64 = bh->b_blocknr + 1;
1083 for (i = 0; i < end; ++i) {
1084 bh = sb_getblk(sb, i + phys64);
1085 lock_buffer(bh);
1086 memset(bh->b_data, 0, sb->s_blocksize);
1087 set_buffer_uptodate(bh);
1088 mark_buffer_dirty(bh);
1089 unlock_buffer(bh);
1090 sync_dirty_buffer(bh);
1091 brelse(bh);
1092 }
1093 }
1094out_unlock:
1095 ufs_put_locked_folio(folio);
1096out:
1097 return err;
1098}
1099
1100static void ufs_truncate_blocks(struct inode *inode)
1101{
1102 struct ufs_inode_info *ufsi = UFS_I(inode);
1103 struct super_block *sb = inode->i_sb;
1104 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1105 unsigned offsets[4];
1106 int depth;
1107 int depth2;
1108 unsigned i;
1109 struct ufs_buffer_head *ubh[3];
1110 void *p;
1111 u64 block;
1112
1113 if (inode->i_size) {
1114 sector_t last = (inode->i_size - 1) >> uspi->s_bshift;
1115 depth = ufs_block_to_path(inode, last, offsets);
1116 if (!depth)
1117 return;
1118 } else {
1119 depth = 1;
1120 }
1121
1122 for (depth2 = depth - 1; depth2; depth2--)
1123 if (offsets[depth2] != uspi->s_apb - 1)
1124 break;
1125
1126 mutex_lock(&ufsi->truncate_mutex);
1127 if (depth == 1) {
1128 ufs_trunc_direct(inode);
1129 offsets[0] = UFS_IND_BLOCK;
1130 } else {
1131 /* get the blocks that should be partially emptied */
1132 p = ufs_get_direct_data_ptr(uspi, ufsi, offsets[0]++);
1133 for (i = 0; i < depth2; i++) {
1134 block = ufs_data_ptr_to_cpu(sb, p);
1135 if (!block)
1136 break;
1137 ubh[i] = ubh_bread(sb, block, uspi->s_bsize);
1138 if (!ubh[i]) {
1139 write_seqlock(&ufsi->meta_lock);
1140 ufs_data_ptr_clear(uspi, p);
1141 write_sequnlock(&ufsi->meta_lock);
1142 break;
1143 }
1144 p = ubh_get_data_ptr(uspi, ubh[i], offsets[i + 1]++);
1145 }
1146 while (i--)
1147 free_branch_tail(inode, offsets[i + 1], ubh[i], depth - i - 1);
1148 }
1149 for (i = offsets[0]; i <= UFS_TIND_BLOCK; i++) {
1150 p = ufs_get_direct_data_ptr(uspi, ufsi, i);
1151 block = ufs_data_ptr_to_cpu(sb, p);
1152 if (block) {
1153 write_seqlock(&ufsi->meta_lock);
1154 ufs_data_ptr_clear(uspi, p);
1155 write_sequnlock(&ufsi->meta_lock);
1156 free_full_branch(inode, block, i - UFS_IND_BLOCK + 1);
1157 }
1158 }
1159 read_seqlock_excl(&ufsi->meta_lock);
1160 ufsi->i_lastfrag = DIRECT_FRAGMENT;
1161 read_sequnlock_excl(&ufsi->meta_lock);
1162 mark_inode_dirty(inode);
1163 mutex_unlock(&ufsi->truncate_mutex);
1164}
1165
1166static int ufs_truncate(struct inode *inode, loff_t size)
1167{
1168 int err = 0;
1169
1170 UFSD("ENTER: ino %lu, i_size: %llu, old_i_size: %llu\n",
1171 inode->i_ino, (unsigned long long)size,
1172 (unsigned long long)i_size_read(inode));
1173
1174 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
1175 S_ISLNK(inode->i_mode)))
1176 return -EINVAL;
1177 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
1178 return -EPERM;
1179
1180 err = ufs_alloc_lastblock(inode, size);
1181
1182 if (err)
1183 goto out;
1184
1185 block_truncate_page(inode->i_mapping, size, ufs_getfrag_block);
1186
1187 truncate_setsize(inode, size);
1188
1189 ufs_truncate_blocks(inode);
1190 inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
1191 mark_inode_dirty(inode);
1192out:
1193 UFSD("EXIT: err %d\n", err);
1194 return err;
1195}
1196
1197int ufs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
1198 struct iattr *attr)
1199{
1200 struct inode *inode = d_inode(dentry);
1201 unsigned int ia_valid = attr->ia_valid;
1202 int error;
1203
1204 error = setattr_prepare(&nop_mnt_idmap, dentry, attr);
1205 if (error)
1206 return error;
1207
1208 if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
1209 error = ufs_truncate(inode, attr->ia_size);
1210 if (error)
1211 return error;
1212 }
1213
1214 setattr_copy(&nop_mnt_idmap, inode, attr);
1215 mark_inode_dirty(inode);
1216 return 0;
1217}
1218
1219const struct inode_operations ufs_file_inode_operations = {
1220 .setattr = ufs_setattr,
1221};
Linux 6.x block layer and io_uring tree(s)