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4342306f KK |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * | |
4 | * Copyright (C) 2019-2021 Paragon Software GmbH, All rights reserved. | |
5 | * | |
e8b8e97f KA |
6 | * Regular file handling primitives for NTFS-based filesystems. |
7 | * | |
4342306f | 8 | */ |
e8b8e97f | 9 | |
4342306f | 10 | #include <linux/backing-dev.h> |
ccdf7741 | 11 | #include <linux/blkdev.h> |
4342306f KK |
12 | #include <linux/buffer_head.h> |
13 | #include <linux/compat.h> | |
14 | #include <linux/falloc.h> | |
15 | #include <linux/fiemap.h> | |
4342306f KK |
16 | |
17 | #include "debug.h" | |
18 | #include "ntfs.h" | |
19 | #include "ntfs_fs.h" | |
20 | ||
21 | static int ntfs_ioctl_fitrim(struct ntfs_sb_info *sbi, unsigned long arg) | |
22 | { | |
23 | struct fstrim_range __user *user_range; | |
24 | struct fstrim_range range; | |
96de65a9 | 25 | struct block_device *dev; |
4342306f KK |
26 | int err; |
27 | ||
28 | if (!capable(CAP_SYS_ADMIN)) | |
29 | return -EPERM; | |
30 | ||
96de65a9 KK |
31 | dev = sbi->sb->s_bdev; |
32 | if (!bdev_max_discard_sectors(dev)) | |
4342306f KK |
33 | return -EOPNOTSUPP; |
34 | ||
35 | user_range = (struct fstrim_range __user *)arg; | |
36 | if (copy_from_user(&range, user_range, sizeof(range))) | |
37 | return -EFAULT; | |
38 | ||
96de65a9 | 39 | range.minlen = max_t(u32, range.minlen, bdev_discard_granularity(dev)); |
4342306f KK |
40 | |
41 | err = ntfs_trim_fs(sbi, &range); | |
42 | if (err < 0) | |
43 | return err; | |
44 | ||
45 | if (copy_to_user(user_range, &range, sizeof(range))) | |
46 | return -EFAULT; | |
47 | ||
48 | return 0; | |
49 | } | |
50 | ||
51 | static long ntfs_ioctl(struct file *filp, u32 cmd, unsigned long arg) | |
52 | { | |
53 | struct inode *inode = file_inode(filp); | |
54 | struct ntfs_sb_info *sbi = inode->i_sb->s_fs_info; | |
4342306f KK |
55 | |
56 | switch (cmd) { | |
4342306f KK |
57 | case FITRIM: |
58 | return ntfs_ioctl_fitrim(sbi, arg); | |
59 | } | |
e8b8e97f | 60 | return -ENOTTY; /* Inappropriate ioctl for device. */ |
4342306f KK |
61 | } |
62 | ||
63 | #ifdef CONFIG_COMPAT | |
64 | static long ntfs_compat_ioctl(struct file *filp, u32 cmd, unsigned long arg) | |
65 | ||
66 | { | |
67 | return ntfs_ioctl(filp, cmd, (unsigned long)compat_ptr(arg)); | |
68 | } | |
69 | #endif | |
70 | ||
71 | /* | |
e8b8e97f | 72 | * ntfs_getattr - inode_operations::getattr |
4342306f | 73 | */ |
b74d24f7 | 74 | int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path, |
4342306f KK |
75 | struct kstat *stat, u32 request_mask, u32 flags) |
76 | { | |
77 | struct inode *inode = d_inode(path->dentry); | |
78 | struct ntfs_inode *ni = ntfs_i(inode); | |
79 | ||
80 | if (is_compressed(ni)) | |
81 | stat->attributes |= STATX_ATTR_COMPRESSED; | |
82 | ||
83 | if (is_encrypted(ni)) | |
84 | stat->attributes |= STATX_ATTR_ENCRYPTED; | |
85 | ||
86 | stat->attributes_mask |= STATX_ATTR_COMPRESSED | STATX_ATTR_ENCRYPTED; | |
87 | ||
0d72b928 | 88 | generic_fillattr(idmap, request_mask, inode, stat); |
4342306f KK |
89 | |
90 | stat->result_mask |= STATX_BTIME; | |
91 | stat->btime = ni->i_crtime; | |
92 | stat->blksize = ni->mi.sbi->cluster_size; /* 512, 1K, ..., 2M */ | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | static int ntfs_extend_initialized_size(struct file *file, | |
98 | struct ntfs_inode *ni, | |
99 | const loff_t valid, | |
100 | const loff_t new_valid) | |
101 | { | |
102 | struct inode *inode = &ni->vfs_inode; | |
103 | struct address_space *mapping = inode->i_mapping; | |
104 | struct ntfs_sb_info *sbi = inode->i_sb->s_fs_info; | |
105 | loff_t pos = valid; | |
106 | int err; | |
107 | ||
108 | if (is_resident(ni)) { | |
109 | ni->i_valid = new_valid; | |
110 | return 0; | |
111 | } | |
112 | ||
113 | WARN_ON(is_compressed(ni)); | |
114 | WARN_ON(valid >= new_valid); | |
115 | ||
116 | for (;;) { | |
117 | u32 zerofrom, len; | |
118 | struct page *page; | |
4342306f KK |
119 | u8 bits; |
120 | CLST vcn, lcn, clen; | |
121 | ||
122 | if (is_sparsed(ni)) { | |
123 | bits = sbi->cluster_bits; | |
124 | vcn = pos >> bits; | |
125 | ||
c380b52f KK |
126 | err = attr_data_get_block(ni, vcn, 1, &lcn, &clen, NULL, |
127 | false); | |
4342306f KK |
128 | if (err) |
129 | goto out; | |
130 | ||
131 | if (lcn == SPARSE_LCN) { | |
2f56a3f8 KK |
132 | pos = ((loff_t)clen + vcn) << bits; |
133 | ni->i_valid = pos; | |
134 | goto next; | |
4342306f KK |
135 | } |
136 | } | |
137 | ||
138 | zerofrom = pos & (PAGE_SIZE - 1); | |
139 | len = PAGE_SIZE - zerofrom; | |
140 | ||
141 | if (pos + len > new_valid) | |
142 | len = new_valid - pos; | |
143 | ||
652118b8 | 144 | err = ntfs_write_begin(file, mapping, pos, len, &page, NULL); |
4342306f KK |
145 | if (err) |
146 | goto out; | |
147 | ||
148 | zero_user_segment(page, zerofrom, PAGE_SIZE); | |
149 | ||
e8b8e97f | 150 | /* This function in any case puts page. */ |
652118b8 | 151 | err = ntfs_write_end(file, mapping, pos, len, len, page, NULL); |
4342306f KK |
152 | if (err < 0) |
153 | goto out; | |
154 | pos += len; | |
155 | ||
156 | next: | |
157 | if (pos >= new_valid) | |
158 | break; | |
159 | ||
160 | balance_dirty_pages_ratelimited(mapping); | |
161 | cond_resched(); | |
162 | } | |
163 | ||
164 | return 0; | |
165 | ||
166 | out: | |
167 | ni->i_valid = valid; | |
168 | ntfs_inode_warn(inode, "failed to extend initialized size to %llx.", | |
169 | new_valid); | |
170 | return err; | |
171 | } | |
172 | ||
173 | /* | |
e8b8e97f | 174 | * ntfs_zero_range - Helper function for punch_hole. |
d3624466 KK |
175 | * |
176 | * It zeroes a range [vbo, vbo_to). | |
4342306f KK |
177 | */ |
178 | static int ntfs_zero_range(struct inode *inode, u64 vbo, u64 vbo_to) | |
179 | { | |
180 | int err = 0; | |
181 | struct address_space *mapping = inode->i_mapping; | |
f39244e2 | 182 | u32 blocksize = i_blocksize(inode); |
4342306f | 183 | pgoff_t idx = vbo >> PAGE_SHIFT; |
c380b52f | 184 | u32 from = vbo & (PAGE_SIZE - 1); |
4342306f KK |
185 | pgoff_t idx_end = (vbo_to + PAGE_SIZE - 1) >> PAGE_SHIFT; |
186 | loff_t page_off; | |
187 | struct buffer_head *head, *bh; | |
c380b52f | 188 | u32 bh_next, bh_off, to; |
4342306f KK |
189 | sector_t iblock; |
190 | struct page *page; | |
191 | ||
c380b52f | 192 | for (; idx < idx_end; idx += 1, from = 0) { |
4342306f | 193 | page_off = (loff_t)idx << PAGE_SHIFT; |
96de65a9 | 194 | to = (page_off + PAGE_SIZE) > vbo_to ? (vbo_to - page_off) : |
f0377761 | 195 | PAGE_SIZE; |
4342306f KK |
196 | iblock = page_off >> inode->i_blkbits; |
197 | ||
198 | page = find_or_create_page(mapping, idx, | |
199 | mapping_gfp_constraint(mapping, | |
200 | ~__GFP_FS)); | |
201 | if (!page) | |
202 | return -ENOMEM; | |
203 | ||
204 | if (!page_has_buffers(page)) | |
205 | create_empty_buffers(page, blocksize, 0); | |
206 | ||
207 | bh = head = page_buffers(page); | |
208 | bh_off = 0; | |
209 | do { | |
210 | bh_next = bh_off + blocksize; | |
211 | ||
c380b52f | 212 | if (bh_next <= from || bh_off >= to) |
4342306f KK |
213 | continue; |
214 | ||
215 | if (!buffer_mapped(bh)) { | |
216 | ntfs_get_block(inode, iblock, bh, 0); | |
d3624466 | 217 | /* Unmapped? It's a hole - nothing to do. */ |
4342306f KK |
218 | if (!buffer_mapped(bh)) |
219 | continue; | |
220 | } | |
221 | ||
d3624466 | 222 | /* Ok, it's mapped. Make sure it's up-to-date. */ |
4342306f KK |
223 | if (PageUptodate(page)) |
224 | set_buffer_uptodate(bh); | |
225 | ||
226 | if (!buffer_uptodate(bh)) { | |
c20bc9c6 KK |
227 | err = bh_read(bh, 0); |
228 | if (err < 0) { | |
4342306f KK |
229 | unlock_page(page); |
230 | put_page(page); | |
4342306f KK |
231 | goto out; |
232 | } | |
233 | } | |
234 | ||
235 | mark_buffer_dirty(bh); | |
236 | ||
237 | } while (bh_off = bh_next, iblock += 1, | |
238 | head != (bh = bh->b_this_page)); | |
239 | ||
c380b52f | 240 | zero_user_segment(page, from, to); |
4342306f KK |
241 | |
242 | unlock_page(page); | |
243 | put_page(page); | |
244 | cond_resched(); | |
245 | } | |
246 | out: | |
247 | mark_inode_dirty(inode); | |
248 | return err; | |
249 | } | |
250 | ||
4342306f | 251 | /* |
e8b8e97f | 252 | * ntfs_file_mmap - file_operations::mmap |
4342306f KK |
253 | */ |
254 | static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma) | |
255 | { | |
256 | struct address_space *mapping = file->f_mapping; | |
257 | struct inode *inode = mapping->host; | |
258 | struct ntfs_inode *ni = ntfs_i(inode); | |
259 | u64 from = ((u64)vma->vm_pgoff << PAGE_SHIFT); | |
260 | bool rw = vma->vm_flags & VM_WRITE; | |
261 | int err; | |
262 | ||
263 | if (is_encrypted(ni)) { | |
264 | ntfs_inode_warn(inode, "mmap encrypted not supported"); | |
265 | return -EOPNOTSUPP; | |
266 | } | |
267 | ||
268 | if (is_dedup(ni)) { | |
269 | ntfs_inode_warn(inode, "mmap deduplicated not supported"); | |
270 | return -EOPNOTSUPP; | |
271 | } | |
272 | ||
273 | if (is_compressed(ni) && rw) { | |
274 | ntfs_inode_warn(inode, "mmap(write) compressed not supported"); | |
275 | return -EOPNOTSUPP; | |
276 | } | |
277 | ||
278 | if (rw) { | |
279 | u64 to = min_t(loff_t, i_size_read(inode), | |
280 | from + vma->vm_end - vma->vm_start); | |
281 | ||
282 | if (is_sparsed(ni)) { | |
e8b8e97f | 283 | /* Allocate clusters for rw map. */ |
4342306f KK |
284 | struct ntfs_sb_info *sbi = inode->i_sb->s_fs_info; |
285 | CLST lcn, len; | |
286 | CLST vcn = from >> sbi->cluster_bits; | |
287 | CLST end = bytes_to_cluster(sbi, to); | |
288 | bool new; | |
289 | ||
290 | for (; vcn < end; vcn += len) { | |
291 | err = attr_data_get_block(ni, vcn, 1, &lcn, | |
c380b52f | 292 | &len, &new, true); |
4342306f KK |
293 | if (err) |
294 | goto out; | |
4342306f KK |
295 | } |
296 | } | |
297 | ||
298 | if (ni->i_valid < to) { | |
299 | if (!inode_trylock(inode)) { | |
300 | err = -EAGAIN; | |
301 | goto out; | |
302 | } | |
303 | err = ntfs_extend_initialized_size(file, ni, | |
304 | ni->i_valid, to); | |
305 | inode_unlock(inode); | |
306 | if (err) | |
307 | goto out; | |
308 | } | |
309 | } | |
310 | ||
311 | err = generic_file_mmap(file, vma); | |
312 | out: | |
313 | return err; | |
314 | } | |
315 | ||
316 | static int ntfs_extend(struct inode *inode, loff_t pos, size_t count, | |
317 | struct file *file) | |
318 | { | |
319 | struct ntfs_inode *ni = ntfs_i(inode); | |
320 | struct address_space *mapping = inode->i_mapping; | |
321 | loff_t end = pos + count; | |
322 | bool extend_init = file && pos > ni->i_valid; | |
323 | int err; | |
324 | ||
325 | if (end <= inode->i_size && !extend_init) | |
326 | return 0; | |
327 | ||
e8b8e97f | 328 | /* Mark rw ntfs as dirty. It will be cleared at umount. */ |
4342306f KK |
329 | ntfs_set_state(ni->mi.sbi, NTFS_DIRTY_DIRTY); |
330 | ||
331 | if (end > inode->i_size) { | |
332 | err = ntfs_set_size(inode, end); | |
333 | if (err) | |
334 | goto out; | |
4342306f KK |
335 | } |
336 | ||
337 | if (extend_init && !is_compressed(ni)) { | |
338 | err = ntfs_extend_initialized_size(file, ni, ni->i_valid, pos); | |
339 | if (err) | |
340 | goto out; | |
341 | } else { | |
342 | err = 0; | |
343 | } | |
344 | ||
3d65c46f | 345 | inode->i_mtime = inode_set_ctime_current(inode); |
4342306f KK |
346 | mark_inode_dirty(inode); |
347 | ||
348 | if (IS_SYNC(inode)) { | |
349 | int err2; | |
350 | ||
351 | err = filemap_fdatawrite_range(mapping, pos, end - 1); | |
352 | err2 = sync_mapping_buffers(mapping); | |
353 | if (!err) | |
354 | err = err2; | |
355 | err2 = write_inode_now(inode, 1); | |
356 | if (!err) | |
357 | err = err2; | |
358 | if (!err) | |
359 | err = filemap_fdatawait_range(mapping, pos, end - 1); | |
360 | } | |
361 | ||
362 | out: | |
363 | return err; | |
364 | } | |
365 | ||
366 | static int ntfs_truncate(struct inode *inode, loff_t new_size) | |
367 | { | |
368 | struct super_block *sb = inode->i_sb; | |
369 | struct ntfs_inode *ni = ntfs_i(inode); | |
370 | int err, dirty = 0; | |
371 | u64 new_valid; | |
372 | ||
373 | if (!S_ISREG(inode->i_mode)) | |
374 | return 0; | |
375 | ||
376 | if (is_compressed(ni)) { | |
377 | if (ni->i_valid > new_size) | |
378 | ni->i_valid = new_size; | |
379 | } else { | |
380 | err = block_truncate_page(inode->i_mapping, new_size, | |
381 | ntfs_get_block); | |
382 | if (err) | |
383 | return err; | |
384 | } | |
385 | ||
386 | new_valid = ntfs_up_block(sb, min_t(u64, ni->i_valid, new_size)); | |
387 | ||
4342306f KK |
388 | truncate_setsize(inode, new_size); |
389 | ||
0226635c TH |
390 | ni_lock(ni); |
391 | ||
4342306f KK |
392 | down_write(&ni->file.run_lock); |
393 | err = attr_set_size(ni, ATTR_DATA, NULL, 0, &ni->file.run, new_size, | |
e95113ed | 394 | &new_valid, ni->mi.sbi->options->prealloc, NULL); |
4342306f KK |
395 | up_write(&ni->file.run_lock); |
396 | ||
397 | if (new_valid < ni->i_valid) | |
398 | ni->i_valid = new_valid; | |
399 | ||
400 | ni_unlock(ni); | |
401 | ||
402 | ni->std_fa |= FILE_ATTRIBUTE_ARCHIVE; | |
3d65c46f | 403 | inode->i_mtime = inode_set_ctime_current(inode); |
4342306f KK |
404 | if (!IS_DIRSYNC(inode)) { |
405 | dirty = 1; | |
406 | } else { | |
407 | err = ntfs_sync_inode(inode); | |
408 | if (err) | |
409 | return err; | |
410 | } | |
411 | ||
412 | if (dirty) | |
413 | mark_inode_dirty(inode); | |
414 | ||
415 | /*ntfs_flush_inodes(inode->i_sb, inode, NULL);*/ | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | /* | |
e8b8e97f KA |
421 | * ntfs_fallocate |
422 | * | |
4342306f KK |
423 | * Preallocate space for a file. This implements ntfs's fallocate file |
424 | * operation, which gets called from sys_fallocate system call. User | |
425 | * space requests 'len' bytes at 'vbo'. If FALLOC_FL_KEEP_SIZE is set | |
426 | * we just allocate clusters without zeroing them out. Otherwise we | |
427 | * allocate and zero out clusters via an expanding truncate. | |
428 | */ | |
429 | static long ntfs_fallocate(struct file *file, int mode, loff_t vbo, loff_t len) | |
430 | { | |
431 | struct inode *inode = file->f_mapping->host; | |
e4d2f4fd | 432 | struct address_space *mapping = inode->i_mapping; |
4342306f KK |
433 | struct super_block *sb = inode->i_sb; |
434 | struct ntfs_sb_info *sbi = sb->s_fs_info; | |
435 | struct ntfs_inode *ni = ntfs_i(inode); | |
436 | loff_t end = vbo + len; | |
c380b52f KK |
437 | loff_t vbo_down = round_down(vbo, max_t(unsigned long, |
438 | sbi->cluster_size, PAGE_SIZE)); | |
e4d2f4fd KK |
439 | bool is_supported_holes = is_sparsed(ni) || is_compressed(ni); |
440 | loff_t i_size, new_size; | |
441 | bool map_locked; | |
4342306f KK |
442 | int err; |
443 | ||
e8b8e97f | 444 | /* No support for dir. */ |
4342306f KK |
445 | if (!S_ISREG(inode->i_mode)) |
446 | return -EOPNOTSUPP; | |
447 | ||
e4d2f4fd KK |
448 | /* |
449 | * vfs_fallocate checks all possible combinations of mode. | |
450 | * Do additional checks here before ntfs_set_state(dirty). | |
451 | */ | |
452 | if (mode & FALLOC_FL_PUNCH_HOLE) { | |
453 | if (!is_supported_holes) | |
454 | return -EOPNOTSUPP; | |
455 | } else if (mode & FALLOC_FL_COLLAPSE_RANGE) { | |
456 | } else if (mode & FALLOC_FL_INSERT_RANGE) { | |
457 | if (!is_supported_holes) | |
458 | return -EOPNOTSUPP; | |
459 | } else if (mode & | |
460 | ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | | |
461 | FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)) { | |
4342306f KK |
462 | ntfs_inode_warn(inode, "fallocate(0x%x) is not supported", |
463 | mode); | |
464 | return -EOPNOTSUPP; | |
465 | } | |
466 | ||
467 | ntfs_set_state(sbi, NTFS_DIRTY_DIRTY); | |
468 | ||
469 | inode_lock(inode); | |
470 | i_size = inode->i_size; | |
e4d2f4fd KK |
471 | new_size = max(end, i_size); |
472 | map_locked = false; | |
4342306f KK |
473 | |
474 | if (WARN_ON(ni->ni_flags & NI_FLAG_COMPRESSED_MASK)) { | |
e8b8e97f | 475 | /* Should never be here, see ntfs_file_open. */ |
4342306f KK |
476 | err = -EOPNOTSUPP; |
477 | goto out; | |
478 | } | |
479 | ||
e4d2f4fd KK |
480 | if (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE | |
481 | FALLOC_FL_INSERT_RANGE)) { | |
482 | inode_dio_wait(inode); | |
483 | filemap_invalidate_lock(mapping); | |
484 | map_locked = true; | |
485 | } | |
486 | ||
4342306f KK |
487 | if (mode & FALLOC_FL_PUNCH_HOLE) { |
488 | u32 frame_size; | |
489 | loff_t mask, vbo_a, end_a, tmp; | |
490 | ||
c380b52f KK |
491 | err = filemap_write_and_wait_range(mapping, vbo_down, |
492 | LLONG_MAX); | |
4342306f KK |
493 | if (err) |
494 | goto out; | |
495 | ||
4342306f KK |
496 | truncate_pagecache(inode, vbo_down); |
497 | ||
4342306f KK |
498 | ni_lock(ni); |
499 | err = attr_punch_hole(ni, vbo, len, &frame_size); | |
500 | ni_unlock(ni); | |
501 | if (err != E_NTFS_NOTALIGNED) | |
502 | goto out; | |
503 | ||
d3624466 | 504 | /* Process not aligned punch. */ |
4342306f KK |
505 | mask = frame_size - 1; |
506 | vbo_a = (vbo + mask) & ~mask; | |
507 | end_a = end & ~mask; | |
508 | ||
509 | tmp = min(vbo_a, end); | |
510 | if (tmp > vbo) { | |
511 | err = ntfs_zero_range(inode, vbo, tmp); | |
512 | if (err) | |
513 | goto out; | |
514 | } | |
515 | ||
516 | if (vbo < end_a && end_a < end) { | |
517 | err = ntfs_zero_range(inode, end_a, end); | |
518 | if (err) | |
519 | goto out; | |
520 | } | |
521 | ||
522 | /* Aligned punch_hole */ | |
523 | if (end_a > vbo_a) { | |
524 | ni_lock(ni); | |
525 | err = attr_punch_hole(ni, vbo_a, end_a - vbo_a, NULL); | |
526 | ni_unlock(ni); | |
527 | } | |
528 | } else if (mode & FALLOC_FL_COLLAPSE_RANGE) { | |
4342306f KK |
529 | /* |
530 | * Write tail of the last page before removed range since | |
531 | * it will get removed from the page cache below. | |
532 | */ | |
e4d2f4fd | 533 | err = filemap_write_and_wait_range(mapping, vbo_down, vbo); |
4342306f KK |
534 | if (err) |
535 | goto out; | |
536 | ||
537 | /* | |
538 | * Write data that will be shifted to preserve them | |
e8b8e97f | 539 | * when discarding page cache below. |
4342306f | 540 | */ |
e4d2f4fd | 541 | err = filemap_write_and_wait_range(mapping, end, LLONG_MAX); |
4342306f KK |
542 | if (err) |
543 | goto out; | |
544 | ||
4342306f KK |
545 | truncate_pagecache(inode, vbo_down); |
546 | ||
547 | ni_lock(ni); | |
548 | err = attr_collapse_range(ni, vbo, len); | |
549 | ni_unlock(ni); | |
e4d2f4fd KK |
550 | } else if (mode & FALLOC_FL_INSERT_RANGE) { |
551 | /* Check new size. */ | |
552 | err = inode_newsize_ok(inode, new_size); | |
553 | if (err) | |
554 | goto out; | |
555 | ||
556 | /* Write out all dirty pages. */ | |
557 | err = filemap_write_and_wait_range(mapping, vbo_down, | |
558 | LLONG_MAX); | |
559 | if (err) | |
560 | goto out; | |
561 | truncate_pagecache(inode, vbo_down); | |
11434697 | 562 | |
e4d2f4fd KK |
563 | ni_lock(ni); |
564 | err = attr_insert_range(ni, vbo, len); | |
565 | ni_unlock(ni); | |
4342306f | 566 | } else { |
e4d2f4fd | 567 | /* Check new size. */ |
96de65a9 | 568 | u8 cluster_bits = sbi->cluster_bits; |
b3e04872 KK |
569 | |
570 | /* generic/213: expected -ENOSPC instead of -EFBIG. */ | |
571 | if (!is_supported_holes) { | |
572 | loff_t to_alloc = new_size - inode_get_bytes(inode); | |
573 | ||
574 | if (to_alloc > 0 && | |
96de65a9 | 575 | (to_alloc >> cluster_bits) > |
b3e04872 KK |
576 | wnd_zeroes(&sbi->used.bitmap)) { |
577 | err = -ENOSPC; | |
578 | goto out; | |
579 | } | |
580 | } | |
11434697 KK |
581 | |
582 | err = inode_newsize_ok(inode, new_size); | |
583 | if (err) | |
584 | goto out; | |
585 | ||
ad26a9c8 KK |
586 | if (new_size > i_size) { |
587 | /* | |
588 | * Allocate clusters, do not change 'valid' size. | |
589 | */ | |
590 | err = ntfs_set_size(inode, new_size); | |
591 | if (err) | |
592 | goto out; | |
593 | } | |
4342306f | 594 | |
e4d2f4fd | 595 | if (is_supported_holes) { |
96de65a9 | 596 | CLST vcn = vbo >> cluster_bits; |
4342306f | 597 | CLST cend = bytes_to_cluster(sbi, end); |
c380b52f | 598 | CLST cend_v = bytes_to_cluster(sbi, ni->i_valid); |
4342306f KK |
599 | CLST lcn, clen; |
600 | bool new; | |
601 | ||
c380b52f KK |
602 | if (cend_v > cend) |
603 | cend_v = cend; | |
604 | ||
4342306f | 605 | /* |
c380b52f | 606 | * Allocate and zero new clusters. |
e8b8e97f | 607 | * Zeroing these clusters may be too long. |
c380b52f KK |
608 | */ |
609 | for (; vcn < cend_v; vcn += clen) { | |
610 | err = attr_data_get_block(ni, vcn, cend_v - vcn, | |
611 | &lcn, &clen, &new, | |
612 | true); | |
613 | if (err) | |
614 | goto out; | |
615 | } | |
616 | /* | |
617 | * Allocate but not zero new clusters. | |
4342306f KK |
618 | */ |
619 | for (; vcn < cend; vcn += clen) { | |
620 | err = attr_data_get_block(ni, vcn, cend - vcn, | |
c380b52f KK |
621 | &lcn, &clen, &new, |
622 | false); | |
4342306f KK |
623 | if (err) |
624 | goto out; | |
4342306f KK |
625 | } |
626 | } | |
627 | ||
628 | if (mode & FALLOC_FL_KEEP_SIZE) { | |
629 | ni_lock(ni); | |
e8b8e97f | 630 | /* True - Keep preallocated. */ |
4342306f KK |
631 | err = attr_set_size(ni, ATTR_DATA, NULL, 0, |
632 | &ni->file.run, i_size, &ni->i_valid, | |
633 | true, NULL); | |
634 | ni_unlock(ni); | |
ad26a9c8 KK |
635 | } else if (new_size > i_size) { |
636 | inode->i_size = new_size; | |
4342306f KK |
637 | } |
638 | } | |
639 | ||
640 | out: | |
e4d2f4fd KK |
641 | if (map_locked) |
642 | filemap_invalidate_unlock(mapping); | |
4342306f KK |
643 | |
644 | if (!err) { | |
3d65c46f | 645 | inode->i_mtime = inode_set_ctime_current(inode); |
4342306f KK |
646 | mark_inode_dirty(inode); |
647 | } | |
648 | ||
649 | inode_unlock(inode); | |
650 | return err; | |
651 | } | |
652 | ||
653 | /* | |
e8b8e97f | 654 | * ntfs3_setattr - inode_operations::setattr |
4342306f | 655 | */ |
c1632a0f | 656 | int ntfs3_setattr(struct mnt_idmap *idmap, struct dentry *dentry, |
4342306f KK |
657 | struct iattr *attr) |
658 | { | |
4342306f KK |
659 | struct inode *inode = d_inode(dentry); |
660 | struct ntfs_inode *ni = ntfs_i(inode); | |
661 | u32 ia_valid = attr->ia_valid; | |
662 | umode_t mode = inode->i_mode; | |
663 | int err; | |
664 | ||
c1632a0f | 665 | err = setattr_prepare(idmap, dentry, attr); |
4342306f KK |
666 | if (err) |
667 | goto out; | |
668 | ||
669 | if (ia_valid & ATTR_SIZE) { | |
ad26a9c8 | 670 | loff_t newsize, oldsize; |
4342306f KK |
671 | |
672 | if (WARN_ON(ni->ni_flags & NI_FLAG_COMPRESSED_MASK)) { | |
e8b8e97f | 673 | /* Should never be here, see ntfs_file_open(). */ |
4342306f KK |
674 | err = -EOPNOTSUPP; |
675 | goto out; | |
676 | } | |
677 | inode_dio_wait(inode); | |
ad26a9c8 KK |
678 | oldsize = inode->i_size; |
679 | newsize = attr->ia_size; | |
4342306f | 680 | |
ad26a9c8 KK |
681 | if (newsize <= oldsize) |
682 | err = ntfs_truncate(inode, newsize); | |
683 | else | |
684 | err = ntfs_extend(inode, newsize, 0, NULL); | |
4342306f KK |
685 | |
686 | if (err) | |
687 | goto out; | |
688 | ||
689 | ni->ni_flags |= NI_FLAG_UPDATE_PARENT; | |
ad26a9c8 | 690 | inode->i_size = newsize; |
4342306f KK |
691 | } |
692 | ||
c1632a0f | 693 | setattr_copy(idmap, inode, attr); |
4342306f KK |
694 | |
695 | if (mode != inode->i_mode) { | |
13e83a49 | 696 | err = ntfs_acl_chmod(idmap, dentry); |
4342306f KK |
697 | if (err) |
698 | goto out; | |
699 | ||
e8b8e97f | 700 | /* Linux 'w' -> Windows 'ro'. */ |
4342306f KK |
701 | if (0222 & inode->i_mode) |
702 | ni->std_fa &= ~FILE_ATTRIBUTE_READONLY; | |
703 | else | |
704 | ni->std_fa |= FILE_ATTRIBUTE_READONLY; | |
705 | } | |
706 | ||
707 | if (ia_valid & (ATTR_UID | ATTR_GID | ATTR_MODE)) | |
1842fbc8 | 708 | ntfs_save_wsl_perm(inode, NULL); |
4342306f KK |
709 | mark_inode_dirty(inode); |
710 | out: | |
711 | return err; | |
712 | } | |
713 | ||
714 | static ssize_t ntfs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter) | |
715 | { | |
4342306f KK |
716 | struct file *file = iocb->ki_filp; |
717 | struct inode *inode = file->f_mapping->host; | |
718 | struct ntfs_inode *ni = ntfs_i(inode); | |
719 | ||
720 | if (is_encrypted(ni)) { | |
721 | ntfs_inode_warn(inode, "encrypted i/o not supported"); | |
722 | return -EOPNOTSUPP; | |
723 | } | |
724 | ||
725 | if (is_compressed(ni) && (iocb->ki_flags & IOCB_DIRECT)) { | |
726 | ntfs_inode_warn(inode, "direct i/o + compressed not supported"); | |
727 | return -EOPNOTSUPP; | |
728 | } | |
729 | ||
730 | #ifndef CONFIG_NTFS3_LZX_XPRESS | |
731 | if (ni->ni_flags & NI_FLAG_COMPRESSED_MASK) { | |
732 | ntfs_inode_warn( | |
733 | inode, | |
734 | "activate CONFIG_NTFS3_LZX_XPRESS to read external compressed files"); | |
735 | return -EOPNOTSUPP; | |
736 | } | |
737 | #endif | |
738 | ||
739 | if (is_dedup(ni)) { | |
740 | ntfs_inode_warn(inode, "read deduplicated not supported"); | |
741 | return -EOPNOTSUPP; | |
742 | } | |
743 | ||
dd854e4b | 744 | return generic_file_read_iter(iocb, iter); |
4342306f KK |
745 | } |
746 | ||
51494398 | 747 | static ssize_t ntfs_file_splice_read(struct file *in, loff_t *ppos, |
f684073c KK |
748 | struct pipe_inode_info *pipe, size_t len, |
749 | unsigned int flags) | |
51494398 DH |
750 | { |
751 | struct inode *inode = in->f_mapping->host; | |
752 | struct ntfs_inode *ni = ntfs_i(inode); | |
753 | ||
754 | if (is_encrypted(ni)) { | |
755 | ntfs_inode_warn(inode, "encrypted i/o not supported"); | |
756 | return -EOPNOTSUPP; | |
757 | } | |
758 | ||
759 | #ifndef CONFIG_NTFS3_LZX_XPRESS | |
760 | if (ni->ni_flags & NI_FLAG_COMPRESSED_MASK) { | |
761 | ntfs_inode_warn( | |
762 | inode, | |
763 | "activate CONFIG_NTFS3_LZX_XPRESS to read external compressed files"); | |
764 | return -EOPNOTSUPP; | |
765 | } | |
766 | #endif | |
767 | ||
768 | if (is_dedup(ni)) { | |
769 | ntfs_inode_warn(inode, "read deduplicated not supported"); | |
770 | return -EOPNOTSUPP; | |
771 | } | |
772 | ||
2cb1e089 | 773 | return filemap_splice_read(in, ppos, pipe, len, flags); |
51494398 DH |
774 | } |
775 | ||
e8b8e97f KA |
776 | /* |
777 | * ntfs_get_frame_pages | |
778 | * | |
779 | * Return: Array of locked pages. | |
780 | */ | |
4342306f KK |
781 | static int ntfs_get_frame_pages(struct address_space *mapping, pgoff_t index, |
782 | struct page **pages, u32 pages_per_frame, | |
783 | bool *frame_uptodate) | |
784 | { | |
785 | gfp_t gfp_mask = mapping_gfp_mask(mapping); | |
786 | u32 npages; | |
787 | ||
788 | *frame_uptodate = true; | |
789 | ||
790 | for (npages = 0; npages < pages_per_frame; npages++, index++) { | |
791 | struct page *page; | |
792 | ||
793 | page = find_or_create_page(mapping, index, gfp_mask); | |
794 | if (!page) { | |
795 | while (npages--) { | |
796 | page = pages[npages]; | |
797 | unlock_page(page); | |
798 | put_page(page); | |
799 | } | |
800 | ||
801 | return -ENOMEM; | |
802 | } | |
803 | ||
804 | if (!PageUptodate(page)) | |
805 | *frame_uptodate = false; | |
806 | ||
807 | pages[npages] = page; | |
808 | } | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
e8b8e97f KA |
813 | /* |
814 | * ntfs_compress_write - Helper for ntfs_file_write_iter() (compressed files). | |
815 | */ | |
4342306f KK |
816 | static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from) |
817 | { | |
818 | int err; | |
819 | struct file *file = iocb->ki_filp; | |
820 | size_t count = iov_iter_count(from); | |
821 | loff_t pos = iocb->ki_pos; | |
822 | struct inode *inode = file_inode(file); | |
823 | loff_t i_size = inode->i_size; | |
824 | struct address_space *mapping = inode->i_mapping; | |
825 | struct ntfs_inode *ni = ntfs_i(inode); | |
826 | u64 valid = ni->i_valid; | |
827 | struct ntfs_sb_info *sbi = ni->mi.sbi; | |
828 | struct page *page, **pages = NULL; | |
829 | size_t written = 0; | |
830 | u8 frame_bits = NTFS_LZNT_CUNIT + sbi->cluster_bits; | |
831 | u32 frame_size = 1u << frame_bits; | |
832 | u32 pages_per_frame = frame_size >> PAGE_SHIFT; | |
833 | u32 ip, off; | |
834 | CLST frame; | |
835 | u64 frame_vbo; | |
836 | pgoff_t index; | |
837 | bool frame_uptodate; | |
838 | ||
839 | if (frame_size < PAGE_SIZE) { | |
840 | /* | |
841 | * frame_size == 8K if cluster 512 | |
842 | * frame_size == 64K if cluster 4096 | |
843 | */ | |
844 | ntfs_inode_warn(inode, "page size is bigger than frame size"); | |
845 | return -EOPNOTSUPP; | |
846 | } | |
847 | ||
345482bc | 848 | pages = kmalloc_array(pages_per_frame, sizeof(struct page *), GFP_NOFS); |
4342306f KK |
849 | if (!pages) |
850 | return -ENOMEM; | |
851 | ||
4342306f KK |
852 | err = file_remove_privs(file); |
853 | if (err) | |
854 | goto out; | |
855 | ||
856 | err = file_update_time(file); | |
857 | if (err) | |
858 | goto out; | |
859 | ||
e8b8e97f | 860 | /* Zero range [valid : pos). */ |
4342306f KK |
861 | while (valid < pos) { |
862 | CLST lcn, clen; | |
863 | ||
864 | frame = valid >> frame_bits; | |
865 | frame_vbo = valid & ~(frame_size - 1); | |
866 | off = valid & (frame_size - 1); | |
867 | ||
c380b52f KK |
868 | err = attr_data_get_block(ni, frame << NTFS_LZNT_CUNIT, 1, &lcn, |
869 | &clen, NULL, false); | |
4342306f KK |
870 | if (err) |
871 | goto out; | |
872 | ||
873 | if (lcn == SPARSE_LCN) { | |
874 | ni->i_valid = valid = | |
875 | frame_vbo + ((u64)clen << sbi->cluster_bits); | |
876 | continue; | |
877 | } | |
878 | ||
e8b8e97f | 879 | /* Load full frame. */ |
4342306f KK |
880 | err = ntfs_get_frame_pages(mapping, frame_vbo >> PAGE_SHIFT, |
881 | pages, pages_per_frame, | |
882 | &frame_uptodate); | |
883 | if (err) | |
884 | goto out; | |
885 | ||
886 | if (!frame_uptodate && off) { | |
887 | err = ni_read_frame(ni, frame_vbo, pages, | |
888 | pages_per_frame); | |
889 | if (err) { | |
890 | for (ip = 0; ip < pages_per_frame; ip++) { | |
891 | page = pages[ip]; | |
892 | unlock_page(page); | |
893 | put_page(page); | |
894 | } | |
895 | goto out; | |
896 | } | |
897 | } | |
898 | ||
899 | ip = off >> PAGE_SHIFT; | |
900 | off = offset_in_page(valid); | |
901 | for (; ip < pages_per_frame; ip++, off = 0) { | |
902 | page = pages[ip]; | |
903 | zero_user_segment(page, off, PAGE_SIZE); | |
904 | flush_dcache_page(page); | |
905 | SetPageUptodate(page); | |
906 | } | |
907 | ||
908 | ni_lock(ni); | |
909 | err = ni_write_frame(ni, pages, pages_per_frame); | |
910 | ni_unlock(ni); | |
911 | ||
912 | for (ip = 0; ip < pages_per_frame; ip++) { | |
913 | page = pages[ip]; | |
914 | SetPageUptodate(page); | |
915 | unlock_page(page); | |
916 | put_page(page); | |
917 | } | |
918 | ||
919 | if (err) | |
920 | goto out; | |
921 | ||
922 | ni->i_valid = valid = frame_vbo + frame_size; | |
923 | } | |
924 | ||
e8b8e97f | 925 | /* Copy user data [pos : pos + count). */ |
4342306f KK |
926 | while (count) { |
927 | size_t copied, bytes; | |
928 | ||
929 | off = pos & (frame_size - 1); | |
930 | bytes = frame_size - off; | |
931 | if (bytes > count) | |
932 | bytes = count; | |
933 | ||
4342306f KK |
934 | frame_vbo = pos & ~(frame_size - 1); |
935 | index = frame_vbo >> PAGE_SHIFT; | |
936 | ||
a6294593 | 937 | if (unlikely(fault_in_iov_iter_readable(from, bytes))) { |
4342306f KK |
938 | err = -EFAULT; |
939 | goto out; | |
940 | } | |
941 | ||
e8b8e97f | 942 | /* Load full frame. */ |
4342306f KK |
943 | err = ntfs_get_frame_pages(mapping, index, pages, |
944 | pages_per_frame, &frame_uptodate); | |
945 | if (err) | |
946 | goto out; | |
947 | ||
948 | if (!frame_uptodate) { | |
949 | loff_t to = pos + bytes; | |
950 | ||
951 | if (off || (to < i_size && (to & (frame_size - 1)))) { | |
952 | err = ni_read_frame(ni, frame_vbo, pages, | |
953 | pages_per_frame); | |
954 | if (err) { | |
955 | for (ip = 0; ip < pages_per_frame; | |
956 | ip++) { | |
957 | page = pages[ip]; | |
958 | unlock_page(page); | |
959 | put_page(page); | |
960 | } | |
961 | goto out; | |
962 | } | |
963 | } | |
964 | } | |
965 | ||
966 | WARN_ON(!bytes); | |
967 | copied = 0; | |
968 | ip = off >> PAGE_SHIFT; | |
969 | off = offset_in_page(pos); | |
970 | ||
e8b8e97f | 971 | /* Copy user data to pages. */ |
4342306f KK |
972 | for (;;) { |
973 | size_t cp, tail = PAGE_SIZE - off; | |
974 | ||
975 | page = pages[ip]; | |
976 | cp = copy_page_from_iter_atomic(page, off, | |
977 | min(tail, bytes), from); | |
978 | flush_dcache_page(page); | |
979 | ||
980 | copied += cp; | |
981 | bytes -= cp; | |
982 | if (!bytes || !cp) | |
983 | break; | |
984 | ||
985 | if (cp < tail) { | |
986 | off += cp; | |
987 | } else { | |
988 | ip++; | |
989 | off = 0; | |
990 | } | |
991 | } | |
992 | ||
993 | ni_lock(ni); | |
994 | err = ni_write_frame(ni, pages, pages_per_frame); | |
995 | ni_unlock(ni); | |
996 | ||
997 | for (ip = 0; ip < pages_per_frame; ip++) { | |
998 | page = pages[ip]; | |
999 | ClearPageDirty(page); | |
1000 | SetPageUptodate(page); | |
1001 | unlock_page(page); | |
1002 | put_page(page); | |
1003 | } | |
1004 | ||
1005 | if (err) | |
1006 | goto out; | |
1007 | ||
1008 | /* | |
1009 | * We can loop for a long time in here. Be nice and allow | |
1010 | * us to schedule out to avoid softlocking if preempt | |
1011 | * is disabled. | |
1012 | */ | |
1013 | cond_resched(); | |
1014 | ||
1015 | pos += copied; | |
1016 | written += copied; | |
1017 | ||
1018 | count = iov_iter_count(from); | |
1019 | } | |
1020 | ||
1021 | out: | |
195c52bd | 1022 | kfree(pages); |
4342306f | 1023 | |
4342306f KK |
1024 | if (err < 0) |
1025 | return err; | |
1026 | ||
1027 | iocb->ki_pos += written; | |
1028 | if (iocb->ki_pos > ni->i_valid) | |
1029 | ni->i_valid = iocb->ki_pos; | |
1030 | ||
1031 | return written; | |
1032 | } | |
1033 | ||
1034 | /* | |
e8b8e97f | 1035 | * ntfs_file_write_iter - file_operations::write_iter |
4342306f KK |
1036 | */ |
1037 | static ssize_t ntfs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) | |
1038 | { | |
1039 | struct file *file = iocb->ki_filp; | |
1040 | struct address_space *mapping = file->f_mapping; | |
1041 | struct inode *inode = mapping->host; | |
1042 | ssize_t ret; | |
1043 | struct ntfs_inode *ni = ntfs_i(inode); | |
1044 | ||
1045 | if (is_encrypted(ni)) { | |
1046 | ntfs_inode_warn(inode, "encrypted i/o not supported"); | |
1047 | return -EOPNOTSUPP; | |
1048 | } | |
1049 | ||
1050 | if (is_compressed(ni) && (iocb->ki_flags & IOCB_DIRECT)) { | |
1051 | ntfs_inode_warn(inode, "direct i/o + compressed not supported"); | |
1052 | return -EOPNOTSUPP; | |
1053 | } | |
1054 | ||
1055 | if (is_dedup(ni)) { | |
1056 | ntfs_inode_warn(inode, "write into deduplicated not supported"); | |
1057 | return -EOPNOTSUPP; | |
1058 | } | |
1059 | ||
1060 | if (!inode_trylock(inode)) { | |
1061 | if (iocb->ki_flags & IOCB_NOWAIT) | |
1062 | return -EAGAIN; | |
1063 | inode_lock(inode); | |
1064 | } | |
1065 | ||
1066 | ret = generic_write_checks(iocb, from); | |
1067 | if (ret <= 0) | |
1068 | goto out; | |
1069 | ||
1070 | if (WARN_ON(ni->ni_flags & NI_FLAG_COMPRESSED_MASK)) { | |
d3624466 | 1071 | /* Should never be here, see ntfs_file_open(). */ |
4342306f KK |
1072 | ret = -EOPNOTSUPP; |
1073 | goto out; | |
1074 | } | |
1075 | ||
1076 | ret = ntfs_extend(inode, iocb->ki_pos, ret, file); | |
1077 | if (ret) | |
1078 | goto out; | |
1079 | ||
96de65a9 | 1080 | ret = is_compressed(ni) ? ntfs_compress_write(iocb, from) : |
f0377761 | 1081 | __generic_file_write_iter(iocb, from); |
4342306f KK |
1082 | |
1083 | out: | |
1084 | inode_unlock(inode); | |
1085 | ||
1086 | if (ret > 0) | |
1087 | ret = generic_write_sync(iocb, ret); | |
1088 | ||
1089 | return ret; | |
1090 | } | |
1091 | ||
1092 | /* | |
e8b8e97f | 1093 | * ntfs_file_open - file_operations::open |
4342306f KK |
1094 | */ |
1095 | int ntfs_file_open(struct inode *inode, struct file *file) | |
1096 | { | |
1097 | struct ntfs_inode *ni = ntfs_i(inode); | |
1098 | ||
1099 | if (unlikely((is_compressed(ni) || is_encrypted(ni)) && | |
1100 | (file->f_flags & O_DIRECT))) { | |
1101 | return -EOPNOTSUPP; | |
1102 | } | |
1103 | ||
e8b8e97f | 1104 | /* Decompress "external compressed" file if opened for rw. */ |
4342306f KK |
1105 | if ((ni->ni_flags & NI_FLAG_COMPRESSED_MASK) && |
1106 | (file->f_flags & (O_WRONLY | O_RDWR | O_TRUNC))) { | |
1107 | #ifdef CONFIG_NTFS3_LZX_XPRESS | |
1108 | int err = ni_decompress_file(ni); | |
1109 | ||
1110 | if (err) | |
1111 | return err; | |
1112 | #else | |
1113 | ntfs_inode_warn( | |
1114 | inode, | |
1115 | "activate CONFIG_NTFS3_LZX_XPRESS to write external compressed files"); | |
1116 | return -EOPNOTSUPP; | |
1117 | #endif | |
1118 | } | |
1119 | ||
1120 | return generic_file_open(inode, file); | |
1121 | } | |
1122 | ||
1123 | /* | |
e8b8e97f | 1124 | * ntfs_file_release - file_operations::release |
4342306f KK |
1125 | */ |
1126 | static int ntfs_file_release(struct inode *inode, struct file *file) | |
1127 | { | |
1128 | struct ntfs_inode *ni = ntfs_i(inode); | |
1129 | struct ntfs_sb_info *sbi = ni->mi.sbi; | |
1130 | int err = 0; | |
1131 | ||
e8b8e97f | 1132 | /* If we are last writer on the inode, drop the block reservation. */ |
96de65a9 KK |
1133 | if (sbi->options->prealloc && |
1134 | ((file->f_mode & FMODE_WRITE) && | |
1135 | atomic_read(&inode->i_writecount) == 1)) { | |
4342306f KK |
1136 | ni_lock(ni); |
1137 | down_write(&ni->file.run_lock); | |
1138 | ||
1139 | err = attr_set_size(ni, ATTR_DATA, NULL, 0, &ni->file.run, | |
1140 | inode->i_size, &ni->i_valid, false, NULL); | |
1141 | ||
1142 | up_write(&ni->file.run_lock); | |
1143 | ni_unlock(ni); | |
1144 | } | |
1145 | return err; | |
1146 | } | |
1147 | ||
e8b8e97f KA |
1148 | /* |
1149 | * ntfs_fiemap - file_operations::fiemap | |
1150 | */ | |
4342306f KK |
1151 | int ntfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, |
1152 | __u64 start, __u64 len) | |
1153 | { | |
1154 | int err; | |
1155 | struct ntfs_inode *ni = ntfs_i(inode); | |
1156 | ||
d4e8e135 KA |
1157 | err = fiemap_prep(inode, fieinfo, start, &len, ~FIEMAP_FLAG_XATTR); |
1158 | if (err) | |
1159 | return err; | |
4342306f KK |
1160 | |
1161 | ni_lock(ni); | |
1162 | ||
1163 | err = ni_fiemap(ni, fieinfo, start, len); | |
1164 | ||
1165 | ni_unlock(ni); | |
1166 | ||
1167 | return err; | |
1168 | } | |
1169 | ||
1170 | // clang-format off | |
1171 | const struct inode_operations ntfs_file_inode_operations = { | |
1172 | .getattr = ntfs_getattr, | |
1173 | .setattr = ntfs3_setattr, | |
1174 | .listxattr = ntfs_listxattr, | |
75c5e0c9 | 1175 | .get_acl = ntfs_get_acl, |
4342306f KK |
1176 | .set_acl = ntfs_set_acl, |
1177 | .fiemap = ntfs_fiemap, | |
1178 | }; | |
1179 | ||
1180 | const struct file_operations ntfs_file_operations = { | |
1181 | .llseek = generic_file_llseek, | |
1182 | .read_iter = ntfs_file_read_iter, | |
1183 | .write_iter = ntfs_file_write_iter, | |
1184 | .unlocked_ioctl = ntfs_ioctl, | |
1185 | #ifdef CONFIG_COMPAT | |
1186 | .compat_ioctl = ntfs_compat_ioctl, | |
1187 | #endif | |
51494398 | 1188 | .splice_read = ntfs_file_splice_read, |
4342306f KK |
1189 | .mmap = ntfs_file_mmap, |
1190 | .open = ntfs_file_open, | |
1191 | .fsync = generic_file_fsync, | |
1192 | .splice_write = iter_file_splice_write, | |
1193 | .fallocate = ntfs_fallocate, | |
1194 | .release = ntfs_file_release, | |
1195 | }; | |
1196 | // clang-format on |