Commit | Line | Data |
---|---|---|
0a8165d7 | 1 | /* |
fbfa2cc5 JK |
2 | * fs/f2fs/file.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/fs.h> | |
12 | #include <linux/f2fs_fs.h> | |
13 | #include <linux/stat.h> | |
14 | #include <linux/buffer_head.h> | |
15 | #include <linux/writeback.h> | |
ae51fb31 | 16 | #include <linux/blkdev.h> |
fbfa2cc5 JK |
17 | #include <linux/falloc.h> |
18 | #include <linux/types.h> | |
e9750824 | 19 | #include <linux/compat.h> |
fbfa2cc5 JK |
20 | #include <linux/uaccess.h> |
21 | #include <linux/mount.h> | |
7f7670fe | 22 | #include <linux/pagevec.h> |
fbfa2cc5 JK |
23 | |
24 | #include "f2fs.h" | |
25 | #include "node.h" | |
26 | #include "segment.h" | |
27 | #include "xattr.h" | |
28 | #include "acl.h" | |
a2a4a7e4 | 29 | #include <trace/events/f2fs.h> |
fbfa2cc5 JK |
30 | |
31 | static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma, | |
32 | struct vm_fault *vmf) | |
33 | { | |
34 | struct page *page = vmf->page; | |
6131ffaa | 35 | struct inode *inode = file_inode(vma->vm_file); |
4081363f | 36 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 | 37 | struct dnode_of_data dn; |
9ba69cf9 | 38 | struct page *ipage; |
e479556b | 39 | int err; |
fbfa2cc5 JK |
40 | |
41 | f2fs_balance_fs(sbi); | |
42 | ||
43 | sb_start_pagefault(inode->i_sb); | |
9ba69cf9 | 44 | retry: |
b067ba1f JK |
45 | /* force to convert with normal data indices */ |
46 | err = f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1, page); | |
47 | if (err) | |
48 | goto out; | |
49 | ||
fbfa2cc5 | 50 | /* block allocation */ |
e479556b | 51 | f2fs_lock_op(sbi); |
9ba69cf9 JK |
52 | |
53 | /* check inline_data */ | |
54 | ipage = get_node_page(sbi, inode->i_ino); | |
55 | if (IS_ERR(ipage)) { | |
56 | f2fs_unlock_op(sbi); | |
57 | goto out; | |
58 | } | |
59 | ||
60 | if (f2fs_has_inline_data(inode)) { | |
61 | f2fs_put_page(ipage, 1); | |
62 | f2fs_unlock_op(sbi); | |
63 | goto retry; | |
64 | } | |
65 | ||
66 | set_new_dnode(&dn, inode, ipage, NULL, 0); | |
b600965c | 67 | err = f2fs_reserve_block(&dn, page->index); |
9ba69cf9 JK |
68 | if (err) { |
69 | f2fs_unlock_op(sbi); | |
b600965c | 70 | goto out; |
9ba69cf9 JK |
71 | } |
72 | f2fs_put_dnode(&dn); | |
73 | f2fs_unlock_op(sbi); | |
fbfa2cc5 | 74 | |
9851e6e1 | 75 | file_update_time(vma->vm_file); |
fbfa2cc5 | 76 | lock_page(page); |
6bacf52f | 77 | if (unlikely(page->mapping != inode->i_mapping || |
9851e6e1 | 78 | page_offset(page) > i_size_read(inode) || |
6bacf52f | 79 | !PageUptodate(page))) { |
fbfa2cc5 JK |
80 | unlock_page(page); |
81 | err = -EFAULT; | |
82 | goto out; | |
83 | } | |
84 | ||
85 | /* | |
86 | * check to see if the page is mapped already (no holes) | |
87 | */ | |
88 | if (PageMappedToDisk(page)) | |
9851e6e1 | 89 | goto mapped; |
fbfa2cc5 JK |
90 | |
91 | /* page is wholly or partially inside EOF */ | |
92 | if (((page->index + 1) << PAGE_CACHE_SHIFT) > i_size_read(inode)) { | |
93 | unsigned offset; | |
94 | offset = i_size_read(inode) & ~PAGE_CACHE_MASK; | |
95 | zero_user_segment(page, offset, PAGE_CACHE_SIZE); | |
96 | } | |
97 | set_page_dirty(page); | |
98 | SetPageUptodate(page); | |
99 | ||
e943a10d | 100 | trace_f2fs_vm_page_mkwrite(page, DATA); |
9851e6e1 NJ |
101 | mapped: |
102 | /* fill the page */ | |
3cb5ad15 | 103 | f2fs_wait_on_page_writeback(page, DATA); |
fbfa2cc5 JK |
104 | out: |
105 | sb_end_pagefault(inode->i_sb); | |
106 | return block_page_mkwrite_return(err); | |
107 | } | |
108 | ||
109 | static const struct vm_operations_struct f2fs_file_vm_ops = { | |
692bb55d | 110 | .fault = filemap_fault, |
f1820361 | 111 | .map_pages = filemap_map_pages, |
692bb55d JK |
112 | .page_mkwrite = f2fs_vm_page_mkwrite, |
113 | .remap_pages = generic_file_remap_pages, | |
fbfa2cc5 JK |
114 | }; |
115 | ||
354a3399 JK |
116 | static int get_parent_ino(struct inode *inode, nid_t *pino) |
117 | { | |
118 | struct dentry *dentry; | |
119 | ||
120 | inode = igrab(inode); | |
121 | dentry = d_find_any_alias(inode); | |
122 | iput(inode); | |
123 | if (!dentry) | |
124 | return 0; | |
125 | ||
f0947e5c JK |
126 | if (update_dent_inode(inode, &dentry->d_name)) { |
127 | dput(dentry); | |
128 | return 0; | |
129 | } | |
354a3399 | 130 | |
f0947e5c JK |
131 | *pino = parent_ino(dentry); |
132 | dput(dentry); | |
354a3399 JK |
133 | return 1; |
134 | } | |
135 | ||
9d1589ef CY |
136 | static inline bool need_do_checkpoint(struct inode *inode) |
137 | { | |
4081363f | 138 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
9d1589ef CY |
139 | bool need_cp = false; |
140 | ||
141 | if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1) | |
142 | need_cp = true; | |
143 | else if (file_wrong_pino(inode)) | |
144 | need_cp = true; | |
145 | else if (!space_for_roll_forward(sbi)) | |
146 | need_cp = true; | |
147 | else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino)) | |
148 | need_cp = true; | |
149 | else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi))) | |
150 | need_cp = true; | |
151 | ||
152 | return need_cp; | |
153 | } | |
154 | ||
fbfa2cc5 JK |
155 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) |
156 | { | |
157 | struct inode *inode = file->f_mapping->host; | |
d928bfbf | 158 | struct f2fs_inode_info *fi = F2FS_I(inode); |
4081363f | 159 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
2403c155 | 160 | nid_t ino = inode->i_ino; |
fbfa2cc5 JK |
161 | int ret = 0; |
162 | bool need_cp = false; | |
163 | struct writeback_control wbc = { | |
c81bf1c8 | 164 | .sync_mode = WB_SYNC_ALL, |
fbfa2cc5 JK |
165 | .nr_to_write = LONG_MAX, |
166 | .for_reclaim = 0, | |
167 | }; | |
168 | ||
6bacf52f | 169 | if (unlikely(f2fs_readonly(inode->i_sb))) |
1fa95b0b NJ |
170 | return 0; |
171 | ||
a2a4a7e4 | 172 | trace_f2fs_sync_file_enter(inode); |
ea1aa12c JK |
173 | |
174 | /* if fdatasync is triggered, let's do in-place-update */ | |
c1ce1b02 | 175 | if (get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks) |
ea1aa12c | 176 | set_inode_flag(fi, FI_NEED_IPU); |
fbfa2cc5 | 177 | ret = filemap_write_and_wait_range(inode->i_mapping, start, end); |
c1ce1b02 JK |
178 | clear_inode_flag(fi, FI_NEED_IPU); |
179 | ||
a2a4a7e4 NJ |
180 | if (ret) { |
181 | trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret); | |
fbfa2cc5 | 182 | return ret; |
a2a4a7e4 | 183 | } |
fbfa2cc5 | 184 | |
6d99ba41 JK |
185 | /* |
186 | * if there is no written data, don't waste time to write recovery info. | |
187 | */ | |
188 | if (!is_inode_flag_set(fi, FI_APPEND_WRITE) && | |
2403c155 | 189 | !exist_written_data(sbi, ino, APPEND_INO)) { |
19c9c466 JK |
190 | struct page *i = find_get_page(NODE_MAPPING(sbi), ino); |
191 | ||
192 | /* But we need to avoid that there are some inode updates */ | |
193 | if ((i && PageDirty(i)) || need_inode_block_update(sbi, ino)) { | |
194 | f2fs_put_page(i, 0); | |
195 | goto go_write; | |
196 | } | |
197 | f2fs_put_page(i, 0); | |
198 | ||
6d99ba41 | 199 | if (is_inode_flag_set(fi, FI_UPDATE_WRITE) || |
2403c155 | 200 | exist_written_data(sbi, ino, UPDATE_INO)) |
6d99ba41 JK |
201 | goto flush_out; |
202 | goto out; | |
203 | } | |
19c9c466 | 204 | go_write: |
7d82db83 JK |
205 | /* guarantee free sections for fsync */ |
206 | f2fs_balance_fs(sbi); | |
207 | ||
e5d2385e JK |
208 | /* |
209 | * Both of fdatasync() and fsync() are able to be recovered from | |
210 | * sudden-power-off. | |
211 | */ | |
9d1589ef CY |
212 | down_read(&fi->i_sem); |
213 | need_cp = need_do_checkpoint(inode); | |
d928bfbf JK |
214 | up_read(&fi->i_sem); |
215 | ||
fbfa2cc5 | 216 | if (need_cp) { |
354a3399 JK |
217 | nid_t pino; |
218 | ||
fbfa2cc5 JK |
219 | /* all the dirty node pages should be flushed for POR */ |
220 | ret = f2fs_sync_fs(inode->i_sb, 1); | |
d928bfbf JK |
221 | |
222 | down_write(&fi->i_sem); | |
223 | F2FS_I(inode)->xattr_ver = 0; | |
354a3399 JK |
224 | if (file_wrong_pino(inode) && inode->i_nlink == 1 && |
225 | get_parent_ino(inode, &pino)) { | |
226 | F2FS_I(inode)->i_pino = pino; | |
227 | file_got_pino(inode); | |
d928bfbf | 228 | up_write(&fi->i_sem); |
354a3399 JK |
229 | mark_inode_dirty_sync(inode); |
230 | ret = f2fs_write_inode(inode, NULL); | |
231 | if (ret) | |
232 | goto out; | |
d928bfbf JK |
233 | } else { |
234 | up_write(&fi->i_sem); | |
354a3399 | 235 | } |
fbfa2cc5 | 236 | } else { |
88bd02c9 JK |
237 | sync_nodes: |
238 | sync_node_pages(sbi, ino, &wbc); | |
239 | ||
240 | if (need_inode_block_update(sbi, ino)) { | |
b3783873 | 241 | mark_inode_dirty_sync(inode); |
398b1ac5 JK |
242 | ret = f2fs_write_inode(inode, NULL); |
243 | if (ret) | |
244 | goto out; | |
88bd02c9 | 245 | goto sync_nodes; |
398b1ac5 | 246 | } |
88bd02c9 | 247 | |
2403c155 | 248 | ret = wait_on_node_pages_writeback(sbi, ino); |
cfe58f9d JK |
249 | if (ret) |
250 | goto out; | |
6d99ba41 JK |
251 | |
252 | /* once recovery info is written, don't need to tack this */ | |
2403c155 | 253 | remove_dirty_inode(sbi, ino, APPEND_INO); |
6d99ba41 JK |
254 | clear_inode_flag(fi, FI_APPEND_WRITE); |
255 | flush_out: | |
2403c155 | 256 | remove_dirty_inode(sbi, ino, UPDATE_INO); |
6d99ba41 | 257 | clear_inode_flag(fi, FI_UPDATE_WRITE); |
4081363f | 258 | ret = f2fs_issue_flush(F2FS_I_SB(inode)); |
fbfa2cc5 JK |
259 | } |
260 | out: | |
a2a4a7e4 | 261 | trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret); |
fbfa2cc5 JK |
262 | return ret; |
263 | } | |
264 | ||
7f7670fe JK |
265 | static pgoff_t __get_first_dirty_index(struct address_space *mapping, |
266 | pgoff_t pgofs, int whence) | |
267 | { | |
268 | struct pagevec pvec; | |
269 | int nr_pages; | |
270 | ||
271 | if (whence != SEEK_DATA) | |
272 | return 0; | |
273 | ||
274 | /* find first dirty page index */ | |
275 | pagevec_init(&pvec, 0); | |
65b85ccc JK |
276 | nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs, |
277 | PAGECACHE_TAG_DIRTY, 1); | |
278 | pgofs = nr_pages ? pvec.pages[0]->index : LONG_MAX; | |
7f7670fe JK |
279 | pagevec_release(&pvec); |
280 | return pgofs; | |
281 | } | |
282 | ||
283 | static bool __found_offset(block_t blkaddr, pgoff_t dirty, pgoff_t pgofs, | |
284 | int whence) | |
285 | { | |
286 | switch (whence) { | |
287 | case SEEK_DATA: | |
288 | if ((blkaddr == NEW_ADDR && dirty == pgofs) || | |
289 | (blkaddr != NEW_ADDR && blkaddr != NULL_ADDR)) | |
290 | return true; | |
291 | break; | |
292 | case SEEK_HOLE: | |
293 | if (blkaddr == NULL_ADDR) | |
294 | return true; | |
295 | break; | |
296 | } | |
297 | return false; | |
298 | } | |
299 | ||
267378d4 CY |
300 | static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence) |
301 | { | |
302 | struct inode *inode = file->f_mapping->host; | |
303 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
304 | struct dnode_of_data dn; | |
7f7670fe JK |
305 | pgoff_t pgofs, end_offset, dirty; |
306 | loff_t data_ofs = offset; | |
307 | loff_t isize; | |
267378d4 CY |
308 | int err = 0; |
309 | ||
310 | mutex_lock(&inode->i_mutex); | |
311 | ||
312 | isize = i_size_read(inode); | |
313 | if (offset >= isize) | |
314 | goto fail; | |
315 | ||
316 | /* handle inline data case */ | |
622f28ae | 317 | if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) { |
267378d4 CY |
318 | if (whence == SEEK_HOLE) |
319 | data_ofs = isize; | |
320 | goto found; | |
321 | } | |
322 | ||
323 | pgofs = (pgoff_t)(offset >> PAGE_CACHE_SHIFT); | |
324 | ||
7f7670fe JK |
325 | dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence); |
326 | ||
267378d4 CY |
327 | for (; data_ofs < isize; data_ofs = pgofs << PAGE_CACHE_SHIFT) { |
328 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
329 | err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA); | |
330 | if (err && err != -ENOENT) { | |
331 | goto fail; | |
332 | } else if (err == -ENOENT) { | |
e1c42045 | 333 | /* direct node does not exists */ |
267378d4 CY |
334 | if (whence == SEEK_DATA) { |
335 | pgofs = PGOFS_OF_NEXT_DNODE(pgofs, | |
336 | F2FS_I(inode)); | |
337 | continue; | |
338 | } else { | |
339 | goto found; | |
340 | } | |
341 | } | |
342 | ||
6b2920a5 | 343 | end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode)); |
267378d4 CY |
344 | |
345 | /* find data/hole in dnode block */ | |
346 | for (; dn.ofs_in_node < end_offset; | |
347 | dn.ofs_in_node++, pgofs++, | |
348 | data_ofs = pgofs << PAGE_CACHE_SHIFT) { | |
349 | block_t blkaddr; | |
350 | blkaddr = datablock_addr(dn.node_page, dn.ofs_in_node); | |
351 | ||
7f7670fe | 352 | if (__found_offset(blkaddr, dirty, pgofs, whence)) { |
267378d4 CY |
353 | f2fs_put_dnode(&dn); |
354 | goto found; | |
355 | } | |
356 | } | |
357 | f2fs_put_dnode(&dn); | |
358 | } | |
359 | ||
360 | if (whence == SEEK_DATA) | |
361 | goto fail; | |
267378d4 | 362 | found: |
fe369bc8 JK |
363 | if (whence == SEEK_HOLE && data_ofs > isize) |
364 | data_ofs = isize; | |
267378d4 CY |
365 | mutex_unlock(&inode->i_mutex); |
366 | return vfs_setpos(file, data_ofs, maxbytes); | |
367 | fail: | |
368 | mutex_unlock(&inode->i_mutex); | |
369 | return -ENXIO; | |
370 | } | |
371 | ||
372 | static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence) | |
373 | { | |
374 | struct inode *inode = file->f_mapping->host; | |
375 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
376 | ||
377 | switch (whence) { | |
378 | case SEEK_SET: | |
379 | case SEEK_CUR: | |
380 | case SEEK_END: | |
381 | return generic_file_llseek_size(file, offset, whence, | |
382 | maxbytes, i_size_read(inode)); | |
383 | case SEEK_DATA: | |
384 | case SEEK_HOLE: | |
0b4c5afd JK |
385 | if (offset < 0) |
386 | return -ENXIO; | |
267378d4 CY |
387 | return f2fs_seek_block(file, offset, whence); |
388 | } | |
389 | ||
390 | return -EINVAL; | |
391 | } | |
392 | ||
fbfa2cc5 JK |
393 | static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) |
394 | { | |
395 | file_accessed(file); | |
396 | vma->vm_ops = &f2fs_file_vm_ops; | |
397 | return 0; | |
398 | } | |
399 | ||
b292dcab | 400 | int truncate_data_blocks_range(struct dnode_of_data *dn, int count) |
fbfa2cc5 JK |
401 | { |
402 | int nr_free = 0, ofs = dn->ofs_in_node; | |
4081363f | 403 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
fbfa2cc5 JK |
404 | struct f2fs_node *raw_node; |
405 | __le32 *addr; | |
406 | ||
45590710 | 407 | raw_node = F2FS_NODE(dn->node_page); |
fbfa2cc5 JK |
408 | addr = blkaddr_in_node(raw_node) + ofs; |
409 | ||
6c311ec6 | 410 | for (; count > 0; count--, addr++, dn->ofs_in_node++) { |
fbfa2cc5 JK |
411 | block_t blkaddr = le32_to_cpu(*addr); |
412 | if (blkaddr == NULL_ADDR) | |
413 | continue; | |
414 | ||
415 | update_extent_cache(NULL_ADDR, dn); | |
416 | invalidate_blocks(sbi, blkaddr); | |
fbfa2cc5 JK |
417 | nr_free++; |
418 | } | |
419 | if (nr_free) { | |
d7cc950b | 420 | dec_valid_block_count(sbi, dn->inode, nr_free); |
fbfa2cc5 JK |
421 | set_page_dirty(dn->node_page); |
422 | sync_inode_page(dn); | |
423 | } | |
424 | dn->ofs_in_node = ofs; | |
51dd6249 NJ |
425 | |
426 | trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid, | |
427 | dn->ofs_in_node, nr_free); | |
fbfa2cc5 JK |
428 | return nr_free; |
429 | } | |
430 | ||
431 | void truncate_data_blocks(struct dnode_of_data *dn) | |
432 | { | |
433 | truncate_data_blocks_range(dn, ADDRS_PER_BLOCK); | |
434 | } | |
435 | ||
436 | static void truncate_partial_data_page(struct inode *inode, u64 from) | |
437 | { | |
438 | unsigned offset = from & (PAGE_CACHE_SIZE - 1); | |
439 | struct page *page; | |
440 | ||
8aa6f1c5 CY |
441 | if (f2fs_has_inline_data(inode)) |
442 | return truncate_inline_data(inode, from); | |
443 | ||
fbfa2cc5 JK |
444 | if (!offset) |
445 | return; | |
446 | ||
c718379b | 447 | page = find_data_page(inode, from >> PAGE_CACHE_SHIFT, false); |
fbfa2cc5 JK |
448 | if (IS_ERR(page)) |
449 | return; | |
450 | ||
451 | lock_page(page); | |
ca0a81b3 CY |
452 | if (unlikely(!PageUptodate(page) || |
453 | page->mapping != inode->i_mapping)) | |
454 | goto out; | |
455 | ||
3cb5ad15 | 456 | f2fs_wait_on_page_writeback(page, DATA); |
fbfa2cc5 JK |
457 | zero_user(page, offset, PAGE_CACHE_SIZE - offset); |
458 | set_page_dirty(page); | |
ca0a81b3 CY |
459 | |
460 | out: | |
fbfa2cc5 JK |
461 | f2fs_put_page(page, 1); |
462 | } | |
463 | ||
764aa3e9 | 464 | int truncate_blocks(struct inode *inode, u64 from, bool lock) |
fbfa2cc5 | 465 | { |
4081363f | 466 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
467 | unsigned int blocksize = inode->i_sb->s_blocksize; |
468 | struct dnode_of_data dn; | |
469 | pgoff_t free_from; | |
9ffe0fb5 | 470 | int count = 0, err = 0; |
fbfa2cc5 | 471 | |
51dd6249 NJ |
472 | trace_f2fs_truncate_blocks_enter(inode, from); |
473 | ||
f185ff97 JK |
474 | if (f2fs_has_inline_data(inode)) |
475 | goto done; | |
476 | ||
fbfa2cc5 JK |
477 | free_from = (pgoff_t) |
478 | ((from + blocksize - 1) >> (sbi->log_blocksize)); | |
479 | ||
764aa3e9 JK |
480 | if (lock) |
481 | f2fs_lock_op(sbi); | |
9ffe0fb5 | 482 | |
fbfa2cc5 | 483 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
266e97a8 | 484 | err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE); |
fbfa2cc5 JK |
485 | if (err) { |
486 | if (err == -ENOENT) | |
487 | goto free_next; | |
764aa3e9 JK |
488 | if (lock) |
489 | f2fs_unlock_op(sbi); | |
51dd6249 | 490 | trace_f2fs_truncate_blocks_exit(inode, err); |
fbfa2cc5 JK |
491 | return err; |
492 | } | |
493 | ||
1ce86bf6 JK |
494 | /* writepage can convert inline_data under get_donde_of_data */ |
495 | if (f2fs_has_inline_data(inode)) { | |
496 | f2fs_put_dnode(&dn); | |
13fd8f89 | 497 | goto unlock_done; |
1ce86bf6 JK |
498 | } |
499 | ||
6403eb1f | 500 | count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode)); |
fbfa2cc5 JK |
501 | |
502 | count -= dn.ofs_in_node; | |
9850cf4a | 503 | f2fs_bug_on(sbi, count < 0); |
39936837 | 504 | |
fbfa2cc5 JK |
505 | if (dn.ofs_in_node || IS_INODE(dn.node_page)) { |
506 | truncate_data_blocks_range(&dn, count); | |
507 | free_from += count; | |
508 | } | |
509 | ||
510 | f2fs_put_dnode(&dn); | |
511 | free_next: | |
512 | err = truncate_inode_blocks(inode, free_from); | |
13fd8f89 | 513 | unlock_done: |
764aa3e9 JK |
514 | if (lock) |
515 | f2fs_unlock_op(sbi); | |
f185ff97 | 516 | done: |
fbfa2cc5 JK |
517 | /* lastly zero out the first data page */ |
518 | truncate_partial_data_page(inode, from); | |
519 | ||
51dd6249 | 520 | trace_f2fs_truncate_blocks_exit(inode, err); |
fbfa2cc5 JK |
521 | return err; |
522 | } | |
523 | ||
524 | void f2fs_truncate(struct inode *inode) | |
525 | { | |
526 | if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || | |
527 | S_ISLNK(inode->i_mode))) | |
528 | return; | |
529 | ||
51dd6249 NJ |
530 | trace_f2fs_truncate(inode); |
531 | ||
764aa3e9 | 532 | if (!truncate_blocks(inode, i_size_read(inode), true)) { |
fbfa2cc5 JK |
533 | inode->i_mtime = inode->i_ctime = CURRENT_TIME; |
534 | mark_inode_dirty(inode); | |
535 | } | |
fbfa2cc5 JK |
536 | } |
537 | ||
2d4d9fb5 | 538 | int f2fs_getattr(struct vfsmount *mnt, |
fbfa2cc5 JK |
539 | struct dentry *dentry, struct kstat *stat) |
540 | { | |
541 | struct inode *inode = dentry->d_inode; | |
542 | generic_fillattr(inode, stat); | |
543 | stat->blocks <<= 3; | |
544 | return 0; | |
545 | } | |
546 | ||
547 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
548 | static void __setattr_copy(struct inode *inode, const struct iattr *attr) | |
549 | { | |
550 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
551 | unsigned int ia_valid = attr->ia_valid; | |
552 | ||
553 | if (ia_valid & ATTR_UID) | |
554 | inode->i_uid = attr->ia_uid; | |
555 | if (ia_valid & ATTR_GID) | |
556 | inode->i_gid = attr->ia_gid; | |
557 | if (ia_valid & ATTR_ATIME) | |
558 | inode->i_atime = timespec_trunc(attr->ia_atime, | |
559 | inode->i_sb->s_time_gran); | |
560 | if (ia_valid & ATTR_MTIME) | |
561 | inode->i_mtime = timespec_trunc(attr->ia_mtime, | |
562 | inode->i_sb->s_time_gran); | |
563 | if (ia_valid & ATTR_CTIME) | |
564 | inode->i_ctime = timespec_trunc(attr->ia_ctime, | |
565 | inode->i_sb->s_time_gran); | |
566 | if (ia_valid & ATTR_MODE) { | |
567 | umode_t mode = attr->ia_mode; | |
568 | ||
569 | if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID)) | |
570 | mode &= ~S_ISGID; | |
571 | set_acl_inode(fi, mode); | |
572 | } | |
573 | } | |
574 | #else | |
575 | #define __setattr_copy setattr_copy | |
576 | #endif | |
577 | ||
578 | int f2fs_setattr(struct dentry *dentry, struct iattr *attr) | |
579 | { | |
580 | struct inode *inode = dentry->d_inode; | |
581 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
582 | int err; | |
583 | ||
584 | err = inode_change_ok(inode, attr); | |
585 | if (err) | |
586 | return err; | |
587 | ||
09db6a2e | 588 | if (attr->ia_valid & ATTR_SIZE) { |
b067ba1f | 589 | err = f2fs_convert_inline_data(inode, attr->ia_size, NULL); |
9e09fc85 JK |
590 | if (err) |
591 | return err; | |
9ffe0fb5 | 592 | |
09db6a2e CY |
593 | if (attr->ia_size != i_size_read(inode)) { |
594 | truncate_setsize(inode, attr->ia_size); | |
595 | f2fs_truncate(inode); | |
596 | f2fs_balance_fs(F2FS_I_SB(inode)); | |
597 | } else { | |
598 | /* | |
599 | * giving a chance to truncate blocks past EOF which | |
600 | * are fallocated with FALLOC_FL_KEEP_SIZE. | |
601 | */ | |
602 | f2fs_truncate(inode); | |
603 | } | |
fbfa2cc5 JK |
604 | } |
605 | ||
606 | __setattr_copy(inode, attr); | |
607 | ||
608 | if (attr->ia_valid & ATTR_MODE) { | |
a6dda0e6 | 609 | err = posix_acl_chmod(inode, get_inode_mode(inode)); |
fbfa2cc5 JK |
610 | if (err || is_inode_flag_set(fi, FI_ACL_MODE)) { |
611 | inode->i_mode = fi->i_acl_mode; | |
612 | clear_inode_flag(fi, FI_ACL_MODE); | |
613 | } | |
614 | } | |
615 | ||
616 | mark_inode_dirty(inode); | |
617 | return err; | |
618 | } | |
619 | ||
620 | const struct inode_operations f2fs_file_inode_operations = { | |
621 | .getattr = f2fs_getattr, | |
622 | .setattr = f2fs_setattr, | |
623 | .get_acl = f2fs_get_acl, | |
a6dda0e6 | 624 | .set_acl = f2fs_set_acl, |
fbfa2cc5 JK |
625 | #ifdef CONFIG_F2FS_FS_XATTR |
626 | .setxattr = generic_setxattr, | |
627 | .getxattr = generic_getxattr, | |
628 | .listxattr = f2fs_listxattr, | |
629 | .removexattr = generic_removexattr, | |
630 | #endif | |
9ab70134 | 631 | .fiemap = f2fs_fiemap, |
fbfa2cc5 JK |
632 | }; |
633 | ||
634 | static void fill_zero(struct inode *inode, pgoff_t index, | |
635 | loff_t start, loff_t len) | |
636 | { | |
4081363f | 637 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
638 | struct page *page; |
639 | ||
640 | if (!len) | |
641 | return; | |
642 | ||
bd43df02 JK |
643 | f2fs_balance_fs(sbi); |
644 | ||
e479556b | 645 | f2fs_lock_op(sbi); |
64aa7ed9 | 646 | page = get_new_data_page(inode, NULL, index, false); |
e479556b | 647 | f2fs_unlock_op(sbi); |
fbfa2cc5 JK |
648 | |
649 | if (!IS_ERR(page)) { | |
3cb5ad15 | 650 | f2fs_wait_on_page_writeback(page, DATA); |
fbfa2cc5 JK |
651 | zero_user(page, start, len); |
652 | set_page_dirty(page); | |
653 | f2fs_put_page(page, 1); | |
654 | } | |
655 | } | |
656 | ||
657 | int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end) | |
658 | { | |
659 | pgoff_t index; | |
660 | int err; | |
661 | ||
662 | for (index = pg_start; index < pg_end; index++) { | |
663 | struct dnode_of_data dn; | |
9eaeba70 | 664 | |
fbfa2cc5 | 665 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
266e97a8 | 666 | err = get_dnode_of_data(&dn, index, LOOKUP_NODE); |
fbfa2cc5 | 667 | if (err) { |
fbfa2cc5 JK |
668 | if (err == -ENOENT) |
669 | continue; | |
670 | return err; | |
671 | } | |
672 | ||
673 | if (dn.data_blkaddr != NULL_ADDR) | |
674 | truncate_data_blocks_range(&dn, 1); | |
675 | f2fs_put_dnode(&dn); | |
fbfa2cc5 JK |
676 | } |
677 | return 0; | |
678 | } | |
679 | ||
a66c7b2f | 680 | static int punch_hole(struct inode *inode, loff_t offset, loff_t len) |
fbfa2cc5 JK |
681 | { |
682 | pgoff_t pg_start, pg_end; | |
683 | loff_t off_start, off_end; | |
684 | int ret = 0; | |
685 | ||
14cecc5c CY |
686 | if (!S_ISREG(inode->i_mode)) |
687 | return -EOPNOTSUPP; | |
688 | ||
689 | /* skip punching hole beyond i_size */ | |
690 | if (offset >= inode->i_size) | |
691 | return ret; | |
692 | ||
b067ba1f | 693 | ret = f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1, NULL); |
8230a0a4 JK |
694 | if (ret) |
695 | return ret; | |
9ffe0fb5 | 696 | |
fbfa2cc5 JK |
697 | pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT; |
698 | pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT; | |
699 | ||
700 | off_start = offset & (PAGE_CACHE_SIZE - 1); | |
701 | off_end = (offset + len) & (PAGE_CACHE_SIZE - 1); | |
702 | ||
703 | if (pg_start == pg_end) { | |
704 | fill_zero(inode, pg_start, off_start, | |
705 | off_end - off_start); | |
706 | } else { | |
707 | if (off_start) | |
708 | fill_zero(inode, pg_start++, off_start, | |
709 | PAGE_CACHE_SIZE - off_start); | |
710 | if (off_end) | |
711 | fill_zero(inode, pg_end, 0, off_end); | |
712 | ||
713 | if (pg_start < pg_end) { | |
714 | struct address_space *mapping = inode->i_mapping; | |
715 | loff_t blk_start, blk_end; | |
4081363f | 716 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1127a3d4 JH |
717 | |
718 | f2fs_balance_fs(sbi); | |
fbfa2cc5 JK |
719 | |
720 | blk_start = pg_start << PAGE_CACHE_SHIFT; | |
721 | blk_end = pg_end << PAGE_CACHE_SHIFT; | |
722 | truncate_inode_pages_range(mapping, blk_start, | |
723 | blk_end - 1); | |
39936837 | 724 | |
e479556b | 725 | f2fs_lock_op(sbi); |
fbfa2cc5 | 726 | ret = truncate_hole(inode, pg_start, pg_end); |
e479556b | 727 | f2fs_unlock_op(sbi); |
fbfa2cc5 JK |
728 | } |
729 | } | |
730 | ||
fbfa2cc5 JK |
731 | return ret; |
732 | } | |
733 | ||
734 | static int expand_inode_data(struct inode *inode, loff_t offset, | |
735 | loff_t len, int mode) | |
736 | { | |
4081363f | 737 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
738 | pgoff_t index, pg_start, pg_end; |
739 | loff_t new_size = i_size_read(inode); | |
740 | loff_t off_start, off_end; | |
741 | int ret = 0; | |
742 | ||
497a0930 CY |
743 | f2fs_balance_fs(sbi); |
744 | ||
fbfa2cc5 JK |
745 | ret = inode_newsize_ok(inode, (len + offset)); |
746 | if (ret) | |
747 | return ret; | |
748 | ||
b067ba1f | 749 | ret = f2fs_convert_inline_data(inode, offset + len, NULL); |
9e09fc85 JK |
750 | if (ret) |
751 | return ret; | |
752 | ||
fbfa2cc5 JK |
753 | pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT; |
754 | pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT; | |
755 | ||
756 | off_start = offset & (PAGE_CACHE_SIZE - 1); | |
757 | off_end = (offset + len) & (PAGE_CACHE_SIZE - 1); | |
758 | ||
ead43275 JK |
759 | f2fs_lock_op(sbi); |
760 | ||
fbfa2cc5 JK |
761 | for (index = pg_start; index <= pg_end; index++) { |
762 | struct dnode_of_data dn; | |
763 | ||
98397ff3 JK |
764 | if (index == pg_end && !off_end) |
765 | goto noalloc; | |
766 | ||
fbfa2cc5 | 767 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
b600965c | 768 | ret = f2fs_reserve_block(&dn, index); |
b600965c | 769 | if (ret) |
fbfa2cc5 | 770 | break; |
98397ff3 | 771 | noalloc: |
fbfa2cc5 JK |
772 | if (pg_start == pg_end) |
773 | new_size = offset + len; | |
774 | else if (index == pg_start && off_start) | |
775 | new_size = (index + 1) << PAGE_CACHE_SHIFT; | |
776 | else if (index == pg_end) | |
777 | new_size = (index << PAGE_CACHE_SHIFT) + off_end; | |
778 | else | |
779 | new_size += PAGE_CACHE_SIZE; | |
780 | } | |
781 | ||
782 | if (!(mode & FALLOC_FL_KEEP_SIZE) && | |
783 | i_size_read(inode) < new_size) { | |
784 | i_size_write(inode, new_size); | |
785 | mark_inode_dirty(inode); | |
ead43275 | 786 | update_inode_page(inode); |
fbfa2cc5 | 787 | } |
ead43275 | 788 | f2fs_unlock_op(sbi); |
fbfa2cc5 JK |
789 | |
790 | return ret; | |
791 | } | |
792 | ||
793 | static long f2fs_fallocate(struct file *file, int mode, | |
794 | loff_t offset, loff_t len) | |
795 | { | |
6131ffaa | 796 | struct inode *inode = file_inode(file); |
fbfa2cc5 JK |
797 | long ret; |
798 | ||
799 | if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) | |
800 | return -EOPNOTSUPP; | |
801 | ||
3375f696 CY |
802 | mutex_lock(&inode->i_mutex); |
803 | ||
fbfa2cc5 | 804 | if (mode & FALLOC_FL_PUNCH_HOLE) |
a66c7b2f | 805 | ret = punch_hole(inode, offset, len); |
fbfa2cc5 JK |
806 | else |
807 | ret = expand_inode_data(inode, offset, len, mode); | |
808 | ||
3af60a49 NJ |
809 | if (!ret) { |
810 | inode->i_mtime = inode->i_ctime = CURRENT_TIME; | |
811 | mark_inode_dirty(inode); | |
812 | } | |
3375f696 CY |
813 | |
814 | mutex_unlock(&inode->i_mutex); | |
815 | ||
c01e2853 | 816 | trace_f2fs_fallocate(inode, mode, offset, len, ret); |
fbfa2cc5 JK |
817 | return ret; |
818 | } | |
819 | ||
820 | #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL)) | |
821 | #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL) | |
822 | ||
823 | static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) | |
824 | { | |
825 | if (S_ISDIR(mode)) | |
826 | return flags; | |
827 | else if (S_ISREG(mode)) | |
828 | return flags & F2FS_REG_FLMASK; | |
829 | else | |
830 | return flags & F2FS_OTHER_FLMASK; | |
831 | } | |
832 | ||
52656e6c | 833 | static int f2fs_ioc_getflags(struct file *filp, unsigned long arg) |
fbfa2cc5 | 834 | { |
6131ffaa | 835 | struct inode *inode = file_inode(filp); |
fbfa2cc5 | 836 | struct f2fs_inode_info *fi = F2FS_I(inode); |
52656e6c JK |
837 | unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE; |
838 | return put_user(flags, (int __user *)arg); | |
839 | } | |
fbfa2cc5 | 840 | |
52656e6c JK |
841 | static int f2fs_ioc_setflags(struct file *filp, unsigned long arg) |
842 | { | |
843 | struct inode *inode = file_inode(filp); | |
844 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
845 | unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE; | |
846 | unsigned int oldflags; | |
847 | int ret; | |
fbfa2cc5 | 848 | |
52656e6c JK |
849 | ret = mnt_want_write_file(filp); |
850 | if (ret) | |
851 | return ret; | |
fbfa2cc5 | 852 | |
52656e6c JK |
853 | if (!inode_owner_or_capable(inode)) { |
854 | ret = -EACCES; | |
855 | goto out; | |
856 | } | |
fbfa2cc5 | 857 | |
52656e6c JK |
858 | if (get_user(flags, (int __user *)arg)) { |
859 | ret = -EFAULT; | |
860 | goto out; | |
861 | } | |
fbfa2cc5 | 862 | |
52656e6c | 863 | flags = f2fs_mask_flags(inode->i_mode, flags); |
fbfa2cc5 | 864 | |
52656e6c | 865 | mutex_lock(&inode->i_mutex); |
fbfa2cc5 | 866 | |
52656e6c | 867 | oldflags = fi->i_flags; |
fbfa2cc5 | 868 | |
52656e6c JK |
869 | if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) { |
870 | if (!capable(CAP_LINUX_IMMUTABLE)) { | |
871 | mutex_unlock(&inode->i_mutex); | |
872 | ret = -EPERM; | |
873 | goto out; | |
fbfa2cc5 | 874 | } |
52656e6c | 875 | } |
fbfa2cc5 | 876 | |
52656e6c JK |
877 | flags = flags & FS_FL_USER_MODIFIABLE; |
878 | flags |= oldflags & ~FS_FL_USER_MODIFIABLE; | |
879 | fi->i_flags = flags; | |
880 | mutex_unlock(&inode->i_mutex); | |
fbfa2cc5 | 881 | |
52656e6c JK |
882 | f2fs_set_inode_flags(inode); |
883 | inode->i_ctime = CURRENT_TIME; | |
884 | mark_inode_dirty(inode); | |
fbfa2cc5 | 885 | out: |
52656e6c JK |
886 | mnt_drop_write_file(filp); |
887 | return ret; | |
888 | } | |
4b2fecc8 | 889 | |
88b88a66 JK |
890 | static int f2fs_ioc_start_atomic_write(struct file *filp) |
891 | { | |
892 | struct inode *inode = file_inode(filp); | |
893 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
894 | ||
895 | if (!inode_owner_or_capable(inode)) | |
896 | return -EACCES; | |
897 | ||
898 | f2fs_balance_fs(sbi); | |
899 | ||
900 | set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE); | |
901 | ||
902 | return f2fs_convert_inline_data(inode, MAX_INLINE_DATA + 1, NULL); | |
903 | } | |
904 | ||
905 | static int f2fs_ioc_commit_atomic_write(struct file *filp) | |
906 | { | |
907 | struct inode *inode = file_inode(filp); | |
908 | int ret; | |
909 | ||
910 | if (!inode_owner_or_capable(inode)) | |
911 | return -EACCES; | |
912 | ||
02a1335f JK |
913 | if (f2fs_is_volatile_file(inode)) |
914 | return 0; | |
915 | ||
88b88a66 JK |
916 | ret = mnt_want_write_file(filp); |
917 | if (ret) | |
918 | return ret; | |
919 | ||
920 | if (f2fs_is_atomic_file(inode)) | |
921 | commit_inmem_pages(inode, false); | |
922 | ||
923 | ret = f2fs_sync_file(filp, 0, LONG_MAX, 0); | |
924 | mnt_drop_write_file(filp); | |
925 | return ret; | |
926 | } | |
927 | ||
02a1335f JK |
928 | static int f2fs_ioc_start_volatile_write(struct file *filp) |
929 | { | |
930 | struct inode *inode = file_inode(filp); | |
931 | ||
932 | if (!inode_owner_or_capable(inode)) | |
933 | return -EACCES; | |
934 | ||
935 | set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE); | |
936 | return 0; | |
937 | } | |
938 | ||
52656e6c JK |
939 | static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg) |
940 | { | |
941 | struct inode *inode = file_inode(filp); | |
942 | struct super_block *sb = inode->i_sb; | |
943 | struct request_queue *q = bdev_get_queue(sb->s_bdev); | |
944 | struct fstrim_range range; | |
945 | int ret; | |
4b2fecc8 | 946 | |
52656e6c JK |
947 | if (!capable(CAP_SYS_ADMIN)) |
948 | return -EPERM; | |
4b2fecc8 | 949 | |
52656e6c JK |
950 | if (!blk_queue_discard(q)) |
951 | return -EOPNOTSUPP; | |
4b2fecc8 | 952 | |
52656e6c JK |
953 | if (copy_from_user(&range, (struct fstrim_range __user *)arg, |
954 | sizeof(range))) | |
955 | return -EFAULT; | |
4b2fecc8 | 956 | |
52656e6c JK |
957 | range.minlen = max((unsigned int)range.minlen, |
958 | q->limits.discard_granularity); | |
959 | ret = f2fs_trim_fs(F2FS_SB(sb), &range); | |
960 | if (ret < 0) | |
961 | return ret; | |
4b2fecc8 | 962 | |
52656e6c JK |
963 | if (copy_to_user((struct fstrim_range __user *)arg, &range, |
964 | sizeof(range))) | |
965 | return -EFAULT; | |
966 | return 0; | |
967 | } | |
968 | ||
969 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
970 | { | |
971 | switch (cmd) { | |
972 | case F2FS_IOC_GETFLAGS: | |
973 | return f2fs_ioc_getflags(filp, arg); | |
974 | case F2FS_IOC_SETFLAGS: | |
975 | return f2fs_ioc_setflags(filp, arg); | |
88b88a66 JK |
976 | case F2FS_IOC_START_ATOMIC_WRITE: |
977 | return f2fs_ioc_start_atomic_write(filp); | |
978 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: | |
979 | return f2fs_ioc_commit_atomic_write(filp); | |
02a1335f JK |
980 | case F2FS_IOC_START_VOLATILE_WRITE: |
981 | return f2fs_ioc_start_volatile_write(filp); | |
52656e6c JK |
982 | case FITRIM: |
983 | return f2fs_ioc_fitrim(filp, arg); | |
fbfa2cc5 JK |
984 | default: |
985 | return -ENOTTY; | |
986 | } | |
987 | } | |
988 | ||
e9750824 NJ |
989 | #ifdef CONFIG_COMPAT |
990 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
991 | { | |
992 | switch (cmd) { | |
993 | case F2FS_IOC32_GETFLAGS: | |
994 | cmd = F2FS_IOC_GETFLAGS; | |
995 | break; | |
996 | case F2FS_IOC32_SETFLAGS: | |
997 | cmd = F2FS_IOC_SETFLAGS; | |
998 | break; | |
999 | default: | |
1000 | return -ENOIOCTLCMD; | |
1001 | } | |
1002 | return f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg)); | |
1003 | } | |
1004 | #endif | |
1005 | ||
fbfa2cc5 | 1006 | const struct file_operations f2fs_file_operations = { |
267378d4 | 1007 | .llseek = f2fs_llseek, |
aad4f8bb | 1008 | .read = new_sync_read, |
8174202b | 1009 | .write = new_sync_write, |
aad4f8bb | 1010 | .read_iter = generic_file_read_iter, |
8174202b | 1011 | .write_iter = generic_file_write_iter, |
fbfa2cc5 JK |
1012 | .open = generic_file_open, |
1013 | .mmap = f2fs_file_mmap, | |
1014 | .fsync = f2fs_sync_file, | |
1015 | .fallocate = f2fs_fallocate, | |
1016 | .unlocked_ioctl = f2fs_ioctl, | |
e9750824 NJ |
1017 | #ifdef CONFIG_COMPAT |
1018 | .compat_ioctl = f2fs_compat_ioctl, | |
1019 | #endif | |
fbfa2cc5 | 1020 | .splice_read = generic_file_splice_read, |
8d020765 | 1021 | .splice_write = iter_file_splice_write, |
fbfa2cc5 | 1022 | }; |