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; |
e479556b | 38 | int err; |
fbfa2cc5 JK |
39 | |
40 | f2fs_balance_fs(sbi); | |
41 | ||
42 | sb_start_pagefault(inode->i_sb); | |
b3d208f9 JK |
43 | |
44 | f2fs_bug_on(sbi, f2fs_has_inline_data(inode)); | |
b067ba1f | 45 | |
fbfa2cc5 | 46 | /* block allocation */ |
e479556b | 47 | f2fs_lock_op(sbi); |
b3d208f9 | 48 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
b600965c | 49 | err = f2fs_reserve_block(&dn, page->index); |
9ba69cf9 JK |
50 | if (err) { |
51 | f2fs_unlock_op(sbi); | |
b600965c | 52 | goto out; |
9ba69cf9 JK |
53 | } |
54 | f2fs_put_dnode(&dn); | |
55 | f2fs_unlock_op(sbi); | |
fbfa2cc5 | 56 | |
9851e6e1 | 57 | file_update_time(vma->vm_file); |
fbfa2cc5 | 58 | lock_page(page); |
6bacf52f | 59 | if (unlikely(page->mapping != inode->i_mapping || |
9851e6e1 | 60 | page_offset(page) > i_size_read(inode) || |
6bacf52f | 61 | !PageUptodate(page))) { |
fbfa2cc5 JK |
62 | unlock_page(page); |
63 | err = -EFAULT; | |
64 | goto out; | |
65 | } | |
66 | ||
67 | /* | |
68 | * check to see if the page is mapped already (no holes) | |
69 | */ | |
70 | if (PageMappedToDisk(page)) | |
9851e6e1 | 71 | goto mapped; |
fbfa2cc5 JK |
72 | |
73 | /* page is wholly or partially inside EOF */ | |
74 | if (((page->index + 1) << PAGE_CACHE_SHIFT) > i_size_read(inode)) { | |
75 | unsigned offset; | |
76 | offset = i_size_read(inode) & ~PAGE_CACHE_MASK; | |
77 | zero_user_segment(page, offset, PAGE_CACHE_SIZE); | |
78 | } | |
79 | set_page_dirty(page); | |
80 | SetPageUptodate(page); | |
81 | ||
e943a10d | 82 | trace_f2fs_vm_page_mkwrite(page, DATA); |
9851e6e1 NJ |
83 | mapped: |
84 | /* fill the page */ | |
3cb5ad15 | 85 | f2fs_wait_on_page_writeback(page, DATA); |
fbfa2cc5 JK |
86 | out: |
87 | sb_end_pagefault(inode->i_sb); | |
88 | return block_page_mkwrite_return(err); | |
89 | } | |
90 | ||
91 | static const struct vm_operations_struct f2fs_file_vm_ops = { | |
692bb55d | 92 | .fault = filemap_fault, |
f1820361 | 93 | .map_pages = filemap_map_pages, |
692bb55d JK |
94 | .page_mkwrite = f2fs_vm_page_mkwrite, |
95 | .remap_pages = generic_file_remap_pages, | |
fbfa2cc5 JK |
96 | }; |
97 | ||
354a3399 JK |
98 | static int get_parent_ino(struct inode *inode, nid_t *pino) |
99 | { | |
100 | struct dentry *dentry; | |
101 | ||
102 | inode = igrab(inode); | |
103 | dentry = d_find_any_alias(inode); | |
104 | iput(inode); | |
105 | if (!dentry) | |
106 | return 0; | |
107 | ||
f0947e5c JK |
108 | if (update_dent_inode(inode, &dentry->d_name)) { |
109 | dput(dentry); | |
110 | return 0; | |
111 | } | |
354a3399 | 112 | |
f0947e5c JK |
113 | *pino = parent_ino(dentry); |
114 | dput(dentry); | |
354a3399 JK |
115 | return 1; |
116 | } | |
117 | ||
9d1589ef CY |
118 | static inline bool need_do_checkpoint(struct inode *inode) |
119 | { | |
4081363f | 120 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
9d1589ef CY |
121 | bool need_cp = false; |
122 | ||
123 | if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1) | |
124 | need_cp = true; | |
125 | else if (file_wrong_pino(inode)) | |
126 | need_cp = true; | |
127 | else if (!space_for_roll_forward(sbi)) | |
128 | need_cp = true; | |
129 | else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino)) | |
130 | need_cp = true; | |
131 | else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi))) | |
132 | need_cp = true; | |
d5053a34 JK |
133 | else if (test_opt(sbi, FASTBOOT)) |
134 | need_cp = true; | |
a344b9fd JK |
135 | else if (sbi->active_logs == 2) |
136 | need_cp = true; | |
9d1589ef CY |
137 | |
138 | return need_cp; | |
139 | } | |
140 | ||
fbfa2cc5 JK |
141 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) |
142 | { | |
143 | struct inode *inode = file->f_mapping->host; | |
d928bfbf | 144 | struct f2fs_inode_info *fi = F2FS_I(inode); |
4081363f | 145 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
2403c155 | 146 | nid_t ino = inode->i_ino; |
fbfa2cc5 JK |
147 | int ret = 0; |
148 | bool need_cp = false; | |
149 | struct writeback_control wbc = { | |
c81bf1c8 | 150 | .sync_mode = WB_SYNC_ALL, |
fbfa2cc5 JK |
151 | .nr_to_write = LONG_MAX, |
152 | .for_reclaim = 0, | |
153 | }; | |
154 | ||
6bacf52f | 155 | if (unlikely(f2fs_readonly(inode->i_sb))) |
1fa95b0b NJ |
156 | return 0; |
157 | ||
a2a4a7e4 | 158 | trace_f2fs_sync_file_enter(inode); |
ea1aa12c JK |
159 | |
160 | /* if fdatasync is triggered, let's do in-place-update */ | |
c1ce1b02 | 161 | if (get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks) |
ea1aa12c | 162 | set_inode_flag(fi, FI_NEED_IPU); |
fbfa2cc5 | 163 | ret = filemap_write_and_wait_range(inode->i_mapping, start, end); |
c1ce1b02 JK |
164 | clear_inode_flag(fi, FI_NEED_IPU); |
165 | ||
a2a4a7e4 NJ |
166 | if (ret) { |
167 | trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret); | |
fbfa2cc5 | 168 | return ret; |
a2a4a7e4 | 169 | } |
fbfa2cc5 | 170 | |
6d99ba41 JK |
171 | /* |
172 | * if there is no written data, don't waste time to write recovery info. | |
173 | */ | |
174 | if (!is_inode_flag_set(fi, FI_APPEND_WRITE) && | |
2403c155 | 175 | !exist_written_data(sbi, ino, APPEND_INO)) { |
19c9c466 JK |
176 | struct page *i = find_get_page(NODE_MAPPING(sbi), ino); |
177 | ||
178 | /* But we need to avoid that there are some inode updates */ | |
179 | if ((i && PageDirty(i)) || need_inode_block_update(sbi, ino)) { | |
180 | f2fs_put_page(i, 0); | |
181 | goto go_write; | |
182 | } | |
183 | f2fs_put_page(i, 0); | |
184 | ||
6d99ba41 | 185 | if (is_inode_flag_set(fi, FI_UPDATE_WRITE) || |
2403c155 | 186 | exist_written_data(sbi, ino, UPDATE_INO)) |
6d99ba41 JK |
187 | goto flush_out; |
188 | goto out; | |
189 | } | |
19c9c466 | 190 | go_write: |
7d82db83 JK |
191 | /* guarantee free sections for fsync */ |
192 | f2fs_balance_fs(sbi); | |
193 | ||
e5d2385e JK |
194 | /* |
195 | * Both of fdatasync() and fsync() are able to be recovered from | |
196 | * sudden-power-off. | |
197 | */ | |
9d1589ef CY |
198 | down_read(&fi->i_sem); |
199 | need_cp = need_do_checkpoint(inode); | |
d928bfbf JK |
200 | up_read(&fi->i_sem); |
201 | ||
fbfa2cc5 | 202 | if (need_cp) { |
354a3399 JK |
203 | nid_t pino; |
204 | ||
fbfa2cc5 JK |
205 | /* all the dirty node pages should be flushed for POR */ |
206 | ret = f2fs_sync_fs(inode->i_sb, 1); | |
d928bfbf JK |
207 | |
208 | down_write(&fi->i_sem); | |
9c01503f | 209 | fi->xattr_ver = 0; |
354a3399 JK |
210 | if (file_wrong_pino(inode) && inode->i_nlink == 1 && |
211 | get_parent_ino(inode, &pino)) { | |
9c01503f | 212 | fi->i_pino = pino; |
354a3399 | 213 | file_got_pino(inode); |
d928bfbf | 214 | up_write(&fi->i_sem); |
354a3399 JK |
215 | mark_inode_dirty_sync(inode); |
216 | ret = f2fs_write_inode(inode, NULL); | |
217 | if (ret) | |
218 | goto out; | |
d928bfbf JK |
219 | } else { |
220 | up_write(&fi->i_sem); | |
354a3399 | 221 | } |
fbfa2cc5 | 222 | } else { |
88bd02c9 JK |
223 | sync_nodes: |
224 | sync_node_pages(sbi, ino, &wbc); | |
225 | ||
226 | if (need_inode_block_update(sbi, ino)) { | |
b3783873 | 227 | mark_inode_dirty_sync(inode); |
398b1ac5 JK |
228 | ret = f2fs_write_inode(inode, NULL); |
229 | if (ret) | |
230 | goto out; | |
88bd02c9 | 231 | goto sync_nodes; |
398b1ac5 | 232 | } |
88bd02c9 | 233 | |
2403c155 | 234 | ret = wait_on_node_pages_writeback(sbi, ino); |
cfe58f9d JK |
235 | if (ret) |
236 | goto out; | |
6d99ba41 JK |
237 | |
238 | /* once recovery info is written, don't need to tack this */ | |
2403c155 | 239 | remove_dirty_inode(sbi, ino, APPEND_INO); |
6d99ba41 JK |
240 | clear_inode_flag(fi, FI_APPEND_WRITE); |
241 | flush_out: | |
2403c155 | 242 | remove_dirty_inode(sbi, ino, UPDATE_INO); |
6d99ba41 | 243 | clear_inode_flag(fi, FI_UPDATE_WRITE); |
9c01503f | 244 | ret = f2fs_issue_flush(sbi); |
fbfa2cc5 JK |
245 | } |
246 | out: | |
a2a4a7e4 | 247 | trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret); |
fbfa2cc5 JK |
248 | return ret; |
249 | } | |
250 | ||
7f7670fe JK |
251 | static pgoff_t __get_first_dirty_index(struct address_space *mapping, |
252 | pgoff_t pgofs, int whence) | |
253 | { | |
254 | struct pagevec pvec; | |
255 | int nr_pages; | |
256 | ||
257 | if (whence != SEEK_DATA) | |
258 | return 0; | |
259 | ||
260 | /* find first dirty page index */ | |
261 | pagevec_init(&pvec, 0); | |
65b85ccc JK |
262 | nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs, |
263 | PAGECACHE_TAG_DIRTY, 1); | |
264 | pgofs = nr_pages ? pvec.pages[0]->index : LONG_MAX; | |
7f7670fe JK |
265 | pagevec_release(&pvec); |
266 | return pgofs; | |
267 | } | |
268 | ||
269 | static bool __found_offset(block_t blkaddr, pgoff_t dirty, pgoff_t pgofs, | |
270 | int whence) | |
271 | { | |
272 | switch (whence) { | |
273 | case SEEK_DATA: | |
274 | if ((blkaddr == NEW_ADDR && dirty == pgofs) || | |
275 | (blkaddr != NEW_ADDR && blkaddr != NULL_ADDR)) | |
276 | return true; | |
277 | break; | |
278 | case SEEK_HOLE: | |
279 | if (blkaddr == NULL_ADDR) | |
280 | return true; | |
281 | break; | |
282 | } | |
283 | return false; | |
284 | } | |
285 | ||
267378d4 CY |
286 | static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence) |
287 | { | |
288 | struct inode *inode = file->f_mapping->host; | |
289 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
290 | struct dnode_of_data dn; | |
7f7670fe JK |
291 | pgoff_t pgofs, end_offset, dirty; |
292 | loff_t data_ofs = offset; | |
293 | loff_t isize; | |
267378d4 CY |
294 | int err = 0; |
295 | ||
296 | mutex_lock(&inode->i_mutex); | |
297 | ||
298 | isize = i_size_read(inode); | |
299 | if (offset >= isize) | |
300 | goto fail; | |
301 | ||
302 | /* handle inline data case */ | |
622f28ae | 303 | if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) { |
267378d4 CY |
304 | if (whence == SEEK_HOLE) |
305 | data_ofs = isize; | |
306 | goto found; | |
307 | } | |
308 | ||
309 | pgofs = (pgoff_t)(offset >> PAGE_CACHE_SHIFT); | |
310 | ||
7f7670fe JK |
311 | dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence); |
312 | ||
267378d4 CY |
313 | for (; data_ofs < isize; data_ofs = pgofs << PAGE_CACHE_SHIFT) { |
314 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
315 | err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA); | |
316 | if (err && err != -ENOENT) { | |
317 | goto fail; | |
318 | } else if (err == -ENOENT) { | |
e1c42045 | 319 | /* direct node does not exists */ |
267378d4 CY |
320 | if (whence == SEEK_DATA) { |
321 | pgofs = PGOFS_OF_NEXT_DNODE(pgofs, | |
322 | F2FS_I(inode)); | |
323 | continue; | |
324 | } else { | |
325 | goto found; | |
326 | } | |
327 | } | |
328 | ||
6b2920a5 | 329 | end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode)); |
267378d4 CY |
330 | |
331 | /* find data/hole in dnode block */ | |
332 | for (; dn.ofs_in_node < end_offset; | |
333 | dn.ofs_in_node++, pgofs++, | |
334 | data_ofs = pgofs << PAGE_CACHE_SHIFT) { | |
335 | block_t blkaddr; | |
336 | blkaddr = datablock_addr(dn.node_page, dn.ofs_in_node); | |
337 | ||
7f7670fe | 338 | if (__found_offset(blkaddr, dirty, pgofs, whence)) { |
267378d4 CY |
339 | f2fs_put_dnode(&dn); |
340 | goto found; | |
341 | } | |
342 | } | |
343 | f2fs_put_dnode(&dn); | |
344 | } | |
345 | ||
346 | if (whence == SEEK_DATA) | |
347 | goto fail; | |
267378d4 | 348 | found: |
fe369bc8 JK |
349 | if (whence == SEEK_HOLE && data_ofs > isize) |
350 | data_ofs = isize; | |
267378d4 CY |
351 | mutex_unlock(&inode->i_mutex); |
352 | return vfs_setpos(file, data_ofs, maxbytes); | |
353 | fail: | |
354 | mutex_unlock(&inode->i_mutex); | |
355 | return -ENXIO; | |
356 | } | |
357 | ||
358 | static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence) | |
359 | { | |
360 | struct inode *inode = file->f_mapping->host; | |
361 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
362 | ||
363 | switch (whence) { | |
364 | case SEEK_SET: | |
365 | case SEEK_CUR: | |
366 | case SEEK_END: | |
367 | return generic_file_llseek_size(file, offset, whence, | |
368 | maxbytes, i_size_read(inode)); | |
369 | case SEEK_DATA: | |
370 | case SEEK_HOLE: | |
0b4c5afd JK |
371 | if (offset < 0) |
372 | return -ENXIO; | |
267378d4 CY |
373 | return f2fs_seek_block(file, offset, whence); |
374 | } | |
375 | ||
376 | return -EINVAL; | |
377 | } | |
378 | ||
fbfa2cc5 JK |
379 | static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) |
380 | { | |
b3d208f9 JK |
381 | struct inode *inode = file_inode(file); |
382 | ||
383 | /* we don't need to use inline_data strictly */ | |
384 | if (f2fs_has_inline_data(inode)) { | |
385 | int err = f2fs_convert_inline_inode(inode); | |
386 | if (err) | |
387 | return err; | |
388 | } | |
389 | ||
fbfa2cc5 JK |
390 | file_accessed(file); |
391 | vma->vm_ops = &f2fs_file_vm_ops; | |
392 | return 0; | |
393 | } | |
394 | ||
b292dcab | 395 | int truncate_data_blocks_range(struct dnode_of_data *dn, int count) |
fbfa2cc5 JK |
396 | { |
397 | int nr_free = 0, ofs = dn->ofs_in_node; | |
4081363f | 398 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
fbfa2cc5 JK |
399 | struct f2fs_node *raw_node; |
400 | __le32 *addr; | |
401 | ||
45590710 | 402 | raw_node = F2FS_NODE(dn->node_page); |
fbfa2cc5 JK |
403 | addr = blkaddr_in_node(raw_node) + ofs; |
404 | ||
6c311ec6 | 405 | for (; count > 0; count--, addr++, dn->ofs_in_node++) { |
fbfa2cc5 JK |
406 | block_t blkaddr = le32_to_cpu(*addr); |
407 | if (blkaddr == NULL_ADDR) | |
408 | continue; | |
409 | ||
410 | update_extent_cache(NULL_ADDR, dn); | |
411 | invalidate_blocks(sbi, blkaddr); | |
fbfa2cc5 JK |
412 | nr_free++; |
413 | } | |
414 | if (nr_free) { | |
d7cc950b | 415 | dec_valid_block_count(sbi, dn->inode, nr_free); |
fbfa2cc5 JK |
416 | set_page_dirty(dn->node_page); |
417 | sync_inode_page(dn); | |
418 | } | |
419 | dn->ofs_in_node = ofs; | |
51dd6249 NJ |
420 | |
421 | trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid, | |
422 | dn->ofs_in_node, nr_free); | |
fbfa2cc5 JK |
423 | return nr_free; |
424 | } | |
425 | ||
426 | void truncate_data_blocks(struct dnode_of_data *dn) | |
427 | { | |
428 | truncate_data_blocks_range(dn, ADDRS_PER_BLOCK); | |
429 | } | |
430 | ||
b3d208f9 | 431 | static int truncate_partial_data_page(struct inode *inode, u64 from) |
fbfa2cc5 JK |
432 | { |
433 | unsigned offset = from & (PAGE_CACHE_SIZE - 1); | |
434 | struct page *page; | |
435 | ||
436 | if (!offset) | |
b3d208f9 | 437 | return 0; |
fbfa2cc5 | 438 | |
c718379b | 439 | page = find_data_page(inode, from >> PAGE_CACHE_SHIFT, false); |
fbfa2cc5 | 440 | if (IS_ERR(page)) |
b3d208f9 | 441 | return 0; |
fbfa2cc5 JK |
442 | |
443 | lock_page(page); | |
ca0a81b3 CY |
444 | if (unlikely(!PageUptodate(page) || |
445 | page->mapping != inode->i_mapping)) | |
446 | goto out; | |
447 | ||
3cb5ad15 | 448 | f2fs_wait_on_page_writeback(page, DATA); |
fbfa2cc5 JK |
449 | zero_user(page, offset, PAGE_CACHE_SIZE - offset); |
450 | set_page_dirty(page); | |
ca0a81b3 | 451 | out: |
fbfa2cc5 | 452 | f2fs_put_page(page, 1); |
b3d208f9 | 453 | return 0; |
fbfa2cc5 JK |
454 | } |
455 | ||
764aa3e9 | 456 | int truncate_blocks(struct inode *inode, u64 from, bool lock) |
fbfa2cc5 | 457 | { |
4081363f | 458 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
459 | unsigned int blocksize = inode->i_sb->s_blocksize; |
460 | struct dnode_of_data dn; | |
461 | pgoff_t free_from; | |
9ffe0fb5 | 462 | int count = 0, err = 0; |
b3d208f9 | 463 | struct page *ipage; |
fbfa2cc5 | 464 | |
51dd6249 NJ |
465 | trace_f2fs_truncate_blocks_enter(inode, from); |
466 | ||
fbfa2cc5 | 467 | free_from = (pgoff_t) |
b3d208f9 | 468 | ((from + blocksize - 1) >> (sbi->log_blocksize)); |
fbfa2cc5 | 469 | |
764aa3e9 JK |
470 | if (lock) |
471 | f2fs_lock_op(sbi); | |
9ffe0fb5 | 472 | |
b3d208f9 JK |
473 | ipage = get_node_page(sbi, inode->i_ino); |
474 | if (IS_ERR(ipage)) { | |
475 | err = PTR_ERR(ipage); | |
476 | goto out; | |
477 | } | |
478 | ||
479 | if (f2fs_has_inline_data(inode)) { | |
b3d208f9 JK |
480 | f2fs_put_page(ipage, 1); |
481 | goto out; | |
482 | } | |
483 | ||
484 | set_new_dnode(&dn, inode, ipage, NULL, 0); | |
266e97a8 | 485 | err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE); |
fbfa2cc5 JK |
486 | if (err) { |
487 | if (err == -ENOENT) | |
488 | goto free_next; | |
b3d208f9 | 489 | goto out; |
1ce86bf6 JK |
490 | } |
491 | ||
6403eb1f | 492 | count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode)); |
fbfa2cc5 JK |
493 | |
494 | count -= dn.ofs_in_node; | |
9850cf4a | 495 | f2fs_bug_on(sbi, count < 0); |
39936837 | 496 | |
fbfa2cc5 JK |
497 | if (dn.ofs_in_node || IS_INODE(dn.node_page)) { |
498 | truncate_data_blocks_range(&dn, count); | |
499 | free_from += count; | |
500 | } | |
501 | ||
502 | f2fs_put_dnode(&dn); | |
503 | free_next: | |
504 | err = truncate_inode_blocks(inode, free_from); | |
764d2c80 JK |
505 | out: |
506 | if (lock) | |
507 | f2fs_unlock_op(sbi); | |
b3d208f9 JK |
508 | |
509 | /* lastly zero out the first data page */ | |
510 | if (!err) | |
511 | err = truncate_partial_data_page(inode, from); | |
fbfa2cc5 | 512 | |
51dd6249 | 513 | trace_f2fs_truncate_blocks_exit(inode, err); |
fbfa2cc5 JK |
514 | return err; |
515 | } | |
516 | ||
517 | void f2fs_truncate(struct inode *inode) | |
518 | { | |
519 | if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || | |
520 | S_ISLNK(inode->i_mode))) | |
521 | return; | |
522 | ||
51dd6249 NJ |
523 | trace_f2fs_truncate(inode); |
524 | ||
92dffd01 JK |
525 | /* we should check inline_data size */ |
526 | if (f2fs_has_inline_data(inode) && !f2fs_may_inline(inode)) { | |
527 | if (f2fs_convert_inline_inode(inode)) | |
528 | return; | |
529 | } | |
530 | ||
764aa3e9 | 531 | if (!truncate_blocks(inode, i_size_read(inode), true)) { |
fbfa2cc5 JK |
532 | inode->i_mtime = inode->i_ctime = CURRENT_TIME; |
533 | mark_inode_dirty(inode); | |
534 | } | |
fbfa2cc5 JK |
535 | } |
536 | ||
2d4d9fb5 | 537 | int f2fs_getattr(struct vfsmount *mnt, |
fbfa2cc5 JK |
538 | struct dentry *dentry, struct kstat *stat) |
539 | { | |
540 | struct inode *inode = dentry->d_inode; | |
541 | generic_fillattr(inode, stat); | |
542 | stat->blocks <<= 3; | |
543 | return 0; | |
544 | } | |
545 | ||
546 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
547 | static void __setattr_copy(struct inode *inode, const struct iattr *attr) | |
548 | { | |
549 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
550 | unsigned int ia_valid = attr->ia_valid; | |
551 | ||
552 | if (ia_valid & ATTR_UID) | |
553 | inode->i_uid = attr->ia_uid; | |
554 | if (ia_valid & ATTR_GID) | |
555 | inode->i_gid = attr->ia_gid; | |
556 | if (ia_valid & ATTR_ATIME) | |
557 | inode->i_atime = timespec_trunc(attr->ia_atime, | |
558 | inode->i_sb->s_time_gran); | |
559 | if (ia_valid & ATTR_MTIME) | |
560 | inode->i_mtime = timespec_trunc(attr->ia_mtime, | |
561 | inode->i_sb->s_time_gran); | |
562 | if (ia_valid & ATTR_CTIME) | |
563 | inode->i_ctime = timespec_trunc(attr->ia_ctime, | |
564 | inode->i_sb->s_time_gran); | |
565 | if (ia_valid & ATTR_MODE) { | |
566 | umode_t mode = attr->ia_mode; | |
567 | ||
568 | if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID)) | |
569 | mode &= ~S_ISGID; | |
570 | set_acl_inode(fi, mode); | |
571 | } | |
572 | } | |
573 | #else | |
574 | #define __setattr_copy setattr_copy | |
575 | #endif | |
576 | ||
577 | int f2fs_setattr(struct dentry *dentry, struct iattr *attr) | |
578 | { | |
579 | struct inode *inode = dentry->d_inode; | |
580 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
581 | int err; | |
582 | ||
583 | err = inode_change_ok(inode, attr); | |
584 | if (err) | |
585 | return err; | |
586 | ||
09db6a2e | 587 | if (attr->ia_valid & ATTR_SIZE) { |
09db6a2e CY |
588 | if (attr->ia_size != i_size_read(inode)) { |
589 | truncate_setsize(inode, attr->ia_size); | |
590 | f2fs_truncate(inode); | |
591 | f2fs_balance_fs(F2FS_I_SB(inode)); | |
592 | } else { | |
593 | /* | |
594 | * giving a chance to truncate blocks past EOF which | |
595 | * are fallocated with FALLOC_FL_KEEP_SIZE. | |
596 | */ | |
597 | f2fs_truncate(inode); | |
598 | } | |
fbfa2cc5 JK |
599 | } |
600 | ||
601 | __setattr_copy(inode, attr); | |
602 | ||
603 | if (attr->ia_valid & ATTR_MODE) { | |
a6dda0e6 | 604 | err = posix_acl_chmod(inode, get_inode_mode(inode)); |
fbfa2cc5 JK |
605 | if (err || is_inode_flag_set(fi, FI_ACL_MODE)) { |
606 | inode->i_mode = fi->i_acl_mode; | |
607 | clear_inode_flag(fi, FI_ACL_MODE); | |
608 | } | |
609 | } | |
610 | ||
611 | mark_inode_dirty(inode); | |
612 | return err; | |
613 | } | |
614 | ||
615 | const struct inode_operations f2fs_file_inode_operations = { | |
616 | .getattr = f2fs_getattr, | |
617 | .setattr = f2fs_setattr, | |
618 | .get_acl = f2fs_get_acl, | |
a6dda0e6 | 619 | .set_acl = f2fs_set_acl, |
fbfa2cc5 JK |
620 | #ifdef CONFIG_F2FS_FS_XATTR |
621 | .setxattr = generic_setxattr, | |
622 | .getxattr = generic_getxattr, | |
623 | .listxattr = f2fs_listxattr, | |
624 | .removexattr = generic_removexattr, | |
625 | #endif | |
9ab70134 | 626 | .fiemap = f2fs_fiemap, |
fbfa2cc5 JK |
627 | }; |
628 | ||
629 | static void fill_zero(struct inode *inode, pgoff_t index, | |
630 | loff_t start, loff_t len) | |
631 | { | |
4081363f | 632 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
633 | struct page *page; |
634 | ||
635 | if (!len) | |
636 | return; | |
637 | ||
bd43df02 JK |
638 | f2fs_balance_fs(sbi); |
639 | ||
e479556b | 640 | f2fs_lock_op(sbi); |
64aa7ed9 | 641 | page = get_new_data_page(inode, NULL, index, false); |
e479556b | 642 | f2fs_unlock_op(sbi); |
fbfa2cc5 JK |
643 | |
644 | if (!IS_ERR(page)) { | |
3cb5ad15 | 645 | f2fs_wait_on_page_writeback(page, DATA); |
fbfa2cc5 JK |
646 | zero_user(page, start, len); |
647 | set_page_dirty(page); | |
648 | f2fs_put_page(page, 1); | |
649 | } | |
650 | } | |
651 | ||
652 | int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end) | |
653 | { | |
654 | pgoff_t index; | |
655 | int err; | |
656 | ||
657 | for (index = pg_start; index < pg_end; index++) { | |
658 | struct dnode_of_data dn; | |
9eaeba70 | 659 | |
fbfa2cc5 | 660 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
266e97a8 | 661 | err = get_dnode_of_data(&dn, index, LOOKUP_NODE); |
fbfa2cc5 | 662 | if (err) { |
fbfa2cc5 JK |
663 | if (err == -ENOENT) |
664 | continue; | |
665 | return err; | |
666 | } | |
667 | ||
668 | if (dn.data_blkaddr != NULL_ADDR) | |
669 | truncate_data_blocks_range(&dn, 1); | |
670 | f2fs_put_dnode(&dn); | |
fbfa2cc5 JK |
671 | } |
672 | return 0; | |
673 | } | |
674 | ||
a66c7b2f | 675 | static int punch_hole(struct inode *inode, loff_t offset, loff_t len) |
fbfa2cc5 JK |
676 | { |
677 | pgoff_t pg_start, pg_end; | |
678 | loff_t off_start, off_end; | |
679 | int ret = 0; | |
680 | ||
14cecc5c CY |
681 | if (!S_ISREG(inode->i_mode)) |
682 | return -EOPNOTSUPP; | |
683 | ||
684 | /* skip punching hole beyond i_size */ | |
685 | if (offset >= inode->i_size) | |
686 | return ret; | |
687 | ||
b3d208f9 JK |
688 | if (f2fs_has_inline_data(inode)) { |
689 | ret = f2fs_convert_inline_inode(inode); | |
690 | if (ret) | |
691 | return ret; | |
692 | } | |
9ffe0fb5 | 693 | |
fbfa2cc5 JK |
694 | pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT; |
695 | pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT; | |
696 | ||
697 | off_start = offset & (PAGE_CACHE_SIZE - 1); | |
698 | off_end = (offset + len) & (PAGE_CACHE_SIZE - 1); | |
699 | ||
700 | if (pg_start == pg_end) { | |
701 | fill_zero(inode, pg_start, off_start, | |
702 | off_end - off_start); | |
703 | } else { | |
704 | if (off_start) | |
705 | fill_zero(inode, pg_start++, off_start, | |
706 | PAGE_CACHE_SIZE - off_start); | |
707 | if (off_end) | |
708 | fill_zero(inode, pg_end, 0, off_end); | |
709 | ||
710 | if (pg_start < pg_end) { | |
711 | struct address_space *mapping = inode->i_mapping; | |
712 | loff_t blk_start, blk_end; | |
4081363f | 713 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1127a3d4 JH |
714 | |
715 | f2fs_balance_fs(sbi); | |
fbfa2cc5 JK |
716 | |
717 | blk_start = pg_start << PAGE_CACHE_SHIFT; | |
718 | blk_end = pg_end << PAGE_CACHE_SHIFT; | |
719 | truncate_inode_pages_range(mapping, blk_start, | |
720 | blk_end - 1); | |
39936837 | 721 | |
e479556b | 722 | f2fs_lock_op(sbi); |
fbfa2cc5 | 723 | ret = truncate_hole(inode, pg_start, pg_end); |
e479556b | 724 | f2fs_unlock_op(sbi); |
fbfa2cc5 JK |
725 | } |
726 | } | |
727 | ||
fbfa2cc5 JK |
728 | return ret; |
729 | } | |
730 | ||
731 | static int expand_inode_data(struct inode *inode, loff_t offset, | |
732 | loff_t len, int mode) | |
733 | { | |
4081363f | 734 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
735 | pgoff_t index, pg_start, pg_end; |
736 | loff_t new_size = i_size_read(inode); | |
737 | loff_t off_start, off_end; | |
738 | int ret = 0; | |
739 | ||
497a0930 CY |
740 | f2fs_balance_fs(sbi); |
741 | ||
fbfa2cc5 JK |
742 | ret = inode_newsize_ok(inode, (len + offset)); |
743 | if (ret) | |
744 | return ret; | |
745 | ||
b3d208f9 JK |
746 | if (f2fs_has_inline_data(inode)) { |
747 | ret = f2fs_convert_inline_inode(inode); | |
748 | if (ret) | |
749 | return ret; | |
750 | } | |
9e09fc85 | 751 | |
fbfa2cc5 JK |
752 | pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT; |
753 | pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT; | |
754 | ||
755 | off_start = offset & (PAGE_CACHE_SIZE - 1); | |
756 | off_end = (offset + len) & (PAGE_CACHE_SIZE - 1); | |
757 | ||
ead43275 JK |
758 | f2fs_lock_op(sbi); |
759 | ||
fbfa2cc5 JK |
760 | for (index = pg_start; index <= pg_end; index++) { |
761 | struct dnode_of_data dn; | |
762 | ||
98397ff3 JK |
763 | if (index == pg_end && !off_end) |
764 | goto noalloc; | |
765 | ||
fbfa2cc5 | 766 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
b600965c | 767 | ret = f2fs_reserve_block(&dn, index); |
b600965c | 768 | if (ret) |
fbfa2cc5 | 769 | break; |
98397ff3 | 770 | noalloc: |
fbfa2cc5 JK |
771 | if (pg_start == pg_end) |
772 | new_size = offset + len; | |
773 | else if (index == pg_start && off_start) | |
774 | new_size = (index + 1) << PAGE_CACHE_SHIFT; | |
775 | else if (index == pg_end) | |
776 | new_size = (index << PAGE_CACHE_SHIFT) + off_end; | |
777 | else | |
778 | new_size += PAGE_CACHE_SIZE; | |
779 | } | |
780 | ||
781 | if (!(mode & FALLOC_FL_KEEP_SIZE) && | |
782 | i_size_read(inode) < new_size) { | |
783 | i_size_write(inode, new_size); | |
784 | mark_inode_dirty(inode); | |
ead43275 | 785 | update_inode_page(inode); |
fbfa2cc5 | 786 | } |
ead43275 | 787 | f2fs_unlock_op(sbi); |
fbfa2cc5 JK |
788 | |
789 | return ret; | |
790 | } | |
791 | ||
792 | static long f2fs_fallocate(struct file *file, int mode, | |
793 | loff_t offset, loff_t len) | |
794 | { | |
6131ffaa | 795 | struct inode *inode = file_inode(file); |
fbfa2cc5 JK |
796 | long ret; |
797 | ||
798 | if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) | |
799 | return -EOPNOTSUPP; | |
800 | ||
3375f696 CY |
801 | mutex_lock(&inode->i_mutex); |
802 | ||
fbfa2cc5 | 803 | if (mode & FALLOC_FL_PUNCH_HOLE) |
a66c7b2f | 804 | ret = punch_hole(inode, offset, len); |
fbfa2cc5 JK |
805 | else |
806 | ret = expand_inode_data(inode, offset, len, mode); | |
807 | ||
3af60a49 NJ |
808 | if (!ret) { |
809 | inode->i_mtime = inode->i_ctime = CURRENT_TIME; | |
810 | mark_inode_dirty(inode); | |
811 | } | |
3375f696 CY |
812 | |
813 | mutex_unlock(&inode->i_mutex); | |
814 | ||
c01e2853 | 815 | trace_f2fs_fallocate(inode, mode, offset, len, ret); |
fbfa2cc5 JK |
816 | return ret; |
817 | } | |
818 | ||
819 | #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL)) | |
820 | #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL) | |
821 | ||
822 | static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) | |
823 | { | |
824 | if (S_ISDIR(mode)) | |
825 | return flags; | |
826 | else if (S_ISREG(mode)) | |
827 | return flags & F2FS_REG_FLMASK; | |
828 | else | |
829 | return flags & F2FS_OTHER_FLMASK; | |
830 | } | |
831 | ||
52656e6c | 832 | static int f2fs_ioc_getflags(struct file *filp, unsigned long arg) |
fbfa2cc5 | 833 | { |
6131ffaa | 834 | struct inode *inode = file_inode(filp); |
fbfa2cc5 | 835 | struct f2fs_inode_info *fi = F2FS_I(inode); |
52656e6c JK |
836 | unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE; |
837 | return put_user(flags, (int __user *)arg); | |
838 | } | |
fbfa2cc5 | 839 | |
52656e6c JK |
840 | static int f2fs_ioc_setflags(struct file *filp, unsigned long arg) |
841 | { | |
842 | struct inode *inode = file_inode(filp); | |
843 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
844 | unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE; | |
845 | unsigned int oldflags; | |
846 | int ret; | |
fbfa2cc5 | 847 | |
52656e6c JK |
848 | ret = mnt_want_write_file(filp); |
849 | if (ret) | |
850 | return ret; | |
fbfa2cc5 | 851 | |
52656e6c JK |
852 | if (!inode_owner_or_capable(inode)) { |
853 | ret = -EACCES; | |
854 | goto out; | |
855 | } | |
fbfa2cc5 | 856 | |
52656e6c JK |
857 | if (get_user(flags, (int __user *)arg)) { |
858 | ret = -EFAULT; | |
859 | goto out; | |
860 | } | |
fbfa2cc5 | 861 | |
52656e6c | 862 | flags = f2fs_mask_flags(inode->i_mode, flags); |
fbfa2cc5 | 863 | |
52656e6c | 864 | mutex_lock(&inode->i_mutex); |
fbfa2cc5 | 865 | |
52656e6c | 866 | oldflags = fi->i_flags; |
fbfa2cc5 | 867 | |
52656e6c JK |
868 | if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) { |
869 | if (!capable(CAP_LINUX_IMMUTABLE)) { | |
870 | mutex_unlock(&inode->i_mutex); | |
871 | ret = -EPERM; | |
872 | goto out; | |
fbfa2cc5 | 873 | } |
52656e6c | 874 | } |
fbfa2cc5 | 875 | |
52656e6c JK |
876 | flags = flags & FS_FL_USER_MODIFIABLE; |
877 | flags |= oldflags & ~FS_FL_USER_MODIFIABLE; | |
878 | fi->i_flags = flags; | |
879 | mutex_unlock(&inode->i_mutex); | |
fbfa2cc5 | 880 | |
52656e6c JK |
881 | f2fs_set_inode_flags(inode); |
882 | inode->i_ctime = CURRENT_TIME; | |
883 | mark_inode_dirty(inode); | |
fbfa2cc5 | 884 | out: |
52656e6c JK |
885 | mnt_drop_write_file(filp); |
886 | return ret; | |
887 | } | |
4b2fecc8 | 888 | |
88b88a66 JK |
889 | static int f2fs_ioc_start_atomic_write(struct file *filp) |
890 | { | |
891 | struct inode *inode = file_inode(filp); | |
892 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
893 | ||
894 | if (!inode_owner_or_capable(inode)) | |
895 | return -EACCES; | |
896 | ||
897 | f2fs_balance_fs(sbi); | |
898 | ||
899 | set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE); | |
900 | ||
b3d208f9 | 901 | return f2fs_convert_inline_inode(inode); |
88b88a66 JK |
902 | } |
903 | ||
12662234 JK |
904 | static int f2fs_release_file(struct inode *inode, struct file *filp) |
905 | { | |
906 | /* some remained atomic pages should discarded */ | |
907 | if (f2fs_is_atomic_file(inode) || f2fs_is_volatile_file(inode)) | |
908 | commit_inmem_pages(inode, true); | |
909 | return 0; | |
910 | } | |
911 | ||
88b88a66 JK |
912 | static int f2fs_ioc_commit_atomic_write(struct file *filp) |
913 | { | |
914 | struct inode *inode = file_inode(filp); | |
915 | int ret; | |
916 | ||
917 | if (!inode_owner_or_capable(inode)) | |
918 | return -EACCES; | |
919 | ||
02a1335f JK |
920 | if (f2fs_is_volatile_file(inode)) |
921 | return 0; | |
922 | ||
88b88a66 JK |
923 | ret = mnt_want_write_file(filp); |
924 | if (ret) | |
925 | return ret; | |
926 | ||
927 | if (f2fs_is_atomic_file(inode)) | |
928 | commit_inmem_pages(inode, false); | |
929 | ||
930 | ret = f2fs_sync_file(filp, 0, LONG_MAX, 0); | |
931 | mnt_drop_write_file(filp); | |
932 | return ret; | |
933 | } | |
934 | ||
02a1335f JK |
935 | static int f2fs_ioc_start_volatile_write(struct file *filp) |
936 | { | |
937 | struct inode *inode = file_inode(filp); | |
938 | ||
939 | if (!inode_owner_or_capable(inode)) | |
940 | return -EACCES; | |
941 | ||
942 | set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE); | |
b3d208f9 JK |
943 | |
944 | return f2fs_convert_inline_inode(inode); | |
02a1335f JK |
945 | } |
946 | ||
52656e6c JK |
947 | static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg) |
948 | { | |
949 | struct inode *inode = file_inode(filp); | |
950 | struct super_block *sb = inode->i_sb; | |
951 | struct request_queue *q = bdev_get_queue(sb->s_bdev); | |
952 | struct fstrim_range range; | |
953 | int ret; | |
4b2fecc8 | 954 | |
52656e6c JK |
955 | if (!capable(CAP_SYS_ADMIN)) |
956 | return -EPERM; | |
4b2fecc8 | 957 | |
52656e6c JK |
958 | if (!blk_queue_discard(q)) |
959 | return -EOPNOTSUPP; | |
4b2fecc8 | 960 | |
52656e6c JK |
961 | if (copy_from_user(&range, (struct fstrim_range __user *)arg, |
962 | sizeof(range))) | |
963 | return -EFAULT; | |
4b2fecc8 | 964 | |
52656e6c JK |
965 | range.minlen = max((unsigned int)range.minlen, |
966 | q->limits.discard_granularity); | |
967 | ret = f2fs_trim_fs(F2FS_SB(sb), &range); | |
968 | if (ret < 0) | |
969 | return ret; | |
4b2fecc8 | 970 | |
52656e6c JK |
971 | if (copy_to_user((struct fstrim_range __user *)arg, &range, |
972 | sizeof(range))) | |
973 | return -EFAULT; | |
974 | return 0; | |
975 | } | |
976 | ||
977 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
978 | { | |
979 | switch (cmd) { | |
980 | case F2FS_IOC_GETFLAGS: | |
981 | return f2fs_ioc_getflags(filp, arg); | |
982 | case F2FS_IOC_SETFLAGS: | |
983 | return f2fs_ioc_setflags(filp, arg); | |
88b88a66 JK |
984 | case F2FS_IOC_START_ATOMIC_WRITE: |
985 | return f2fs_ioc_start_atomic_write(filp); | |
986 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: | |
987 | return f2fs_ioc_commit_atomic_write(filp); | |
02a1335f JK |
988 | case F2FS_IOC_START_VOLATILE_WRITE: |
989 | return f2fs_ioc_start_volatile_write(filp); | |
52656e6c JK |
990 | case FITRIM: |
991 | return f2fs_ioc_fitrim(filp, arg); | |
fbfa2cc5 JK |
992 | default: |
993 | return -ENOTTY; | |
994 | } | |
995 | } | |
996 | ||
e9750824 NJ |
997 | #ifdef CONFIG_COMPAT |
998 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
999 | { | |
1000 | switch (cmd) { | |
1001 | case F2FS_IOC32_GETFLAGS: | |
1002 | cmd = F2FS_IOC_GETFLAGS; | |
1003 | break; | |
1004 | case F2FS_IOC32_SETFLAGS: | |
1005 | cmd = F2FS_IOC_SETFLAGS; | |
1006 | break; | |
1007 | default: | |
1008 | return -ENOIOCTLCMD; | |
1009 | } | |
1010 | return f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg)); | |
1011 | } | |
1012 | #endif | |
1013 | ||
fbfa2cc5 | 1014 | const struct file_operations f2fs_file_operations = { |
267378d4 | 1015 | .llseek = f2fs_llseek, |
aad4f8bb | 1016 | .read = new_sync_read, |
8174202b | 1017 | .write = new_sync_write, |
aad4f8bb | 1018 | .read_iter = generic_file_read_iter, |
8174202b | 1019 | .write_iter = generic_file_write_iter, |
fbfa2cc5 | 1020 | .open = generic_file_open, |
12662234 | 1021 | .release = f2fs_release_file, |
fbfa2cc5 JK |
1022 | .mmap = f2fs_file_mmap, |
1023 | .fsync = f2fs_sync_file, | |
1024 | .fallocate = f2fs_fallocate, | |
1025 | .unlocked_ioctl = f2fs_ioctl, | |
e9750824 NJ |
1026 | #ifdef CONFIG_COMPAT |
1027 | .compat_ioctl = f2fs_compat_ioctl, | |
1028 | #endif | |
fbfa2cc5 | 1029 | .splice_read = generic_file_splice_read, |
8d020765 | 1030 | .splice_write = iter_file_splice_write, |
fbfa2cc5 | 1031 | }; |