Commit | Line | Data |
---|---|---|
7c1a000d | 1 | // SPDX-License-Identifier: GPL-2.0 |
0a8165d7 | 2 | /* |
fbfa2cc5 JK |
3 | * fs/f2fs/file.c |
4 | * | |
5 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
6 | * http://www.samsung.com/ | |
fbfa2cc5 JK |
7 | */ |
8 | #include <linux/fs.h> | |
9 | #include <linux/f2fs_fs.h> | |
10 | #include <linux/stat.h> | |
11 | #include <linux/buffer_head.h> | |
12 | #include <linux/writeback.h> | |
ae51fb31 | 13 | #include <linux/blkdev.h> |
fbfa2cc5 JK |
14 | #include <linux/falloc.h> |
15 | #include <linux/types.h> | |
e9750824 | 16 | #include <linux/compat.h> |
fbfa2cc5 JK |
17 | #include <linux/uaccess.h> |
18 | #include <linux/mount.h> | |
7f7670fe | 19 | #include <linux/pagevec.h> |
dc91de78 | 20 | #include <linux/uio.h> |
8da4b8c4 | 21 | #include <linux/uuid.h> |
4dd6f977 | 22 | #include <linux/file.h> |
4507847c | 23 | #include <linux/nls.h> |
9af84648 | 24 | #include <linux/sched/signal.h> |
9b1bb01c | 25 | #include <linux/fileattr.h> |
0f6b56ec | 26 | #include <linux/fadvise.h> |
fbfa2cc5 JK |
27 | |
28 | #include "f2fs.h" | |
29 | #include "node.h" | |
30 | #include "segment.h" | |
31 | #include "xattr.h" | |
32 | #include "acl.h" | |
c1c1b583 | 33 | #include "gc.h" |
52118743 | 34 | #include "iostat.h" |
a2a4a7e4 | 35 | #include <trace/events/f2fs.h> |
fa4320ce | 36 | #include <uapi/linux/f2fs.h> |
fbfa2cc5 | 37 | |
ea4d479b | 38 | static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf) |
5a3a2d83 QS |
39 | { |
40 | struct inode *inode = file_inode(vmf->vma->vm_file); | |
ea4d479b | 41 | vm_fault_t ret; |
5a3a2d83 | 42 | |
ea4d479b | 43 | ret = filemap_fault(vmf); |
8b83ac81 CY |
44 | if (!ret) |
45 | f2fs_update_iostat(F2FS_I_SB(inode), APP_MAPPED_READ_IO, | |
46 | F2FS_BLKSIZE); | |
47 | ||
d7648343 CY |
48 | trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret); |
49 | ||
ea4d479b | 50 | return ret; |
5a3a2d83 QS |
51 | } |
52 | ||
ea4d479b | 53 | static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf) |
fbfa2cc5 JK |
54 | { |
55 | struct page *page = vmf->page; | |
11bac800 | 56 | struct inode *inode = file_inode(vmf->vma->vm_file); |
4081363f | 57 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
bdf03299 | 58 | struct dnode_of_data dn; |
4c8ff709 CY |
59 | bool need_alloc = true; |
60 | int err = 0; | |
fbfa2cc5 | 61 | |
e0fcd015 CY |
62 | if (unlikely(IS_IMMUTABLE(inode))) |
63 | return VM_FAULT_SIGBUS; | |
64 | ||
c6140415 JK |
65 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) |
66 | return VM_FAULT_SIGBUS; | |
67 | ||
1f227a3e JK |
68 | if (unlikely(f2fs_cp_error(sbi))) { |
69 | err = -EIO; | |
70 | goto err; | |
71 | } | |
72 | ||
00e09c0b CY |
73 | if (!f2fs_is_checkpoint_ready(sbi)) { |
74 | err = -ENOSPC; | |
955ebcd3 | 75 | goto err; |
00e09c0b | 76 | } |
1f227a3e | 77 | |
c8e43d55 CY |
78 | err = f2fs_convert_inline_inode(inode); |
79 | if (err) | |
80 | goto err; | |
81 | ||
4c8ff709 CY |
82 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
83 | if (f2fs_compressed_file(inode)) { | |
84 | int ret = f2fs_is_compressed_cluster(inode, page->index); | |
85 | ||
86 | if (ret < 0) { | |
87 | err = ret; | |
88 | goto err; | |
89 | } else if (ret) { | |
4c8ff709 CY |
90 | need_alloc = false; |
91 | } | |
92 | } | |
93 | #endif | |
bdf03299 | 94 | /* should do out of any locked page */ |
4c8ff709 CY |
95 | if (need_alloc) |
96 | f2fs_balance_fs(sbi, true); | |
bdf03299 | 97 | |
fbfa2cc5 | 98 | sb_start_pagefault(inode->i_sb); |
b3d208f9 JK |
99 | |
100 | f2fs_bug_on(sbi, f2fs_has_inline_data(inode)); | |
b067ba1f | 101 | |
11bac800 | 102 | file_update_time(vmf->vma->vm_file); |
edc6d01b | 103 | filemap_invalidate_lock_shared(inode->i_mapping); |
fbfa2cc5 | 104 | lock_page(page); |
6bacf52f | 105 | if (unlikely(page->mapping != inode->i_mapping || |
9851e6e1 | 106 | page_offset(page) > i_size_read(inode) || |
6bacf52f | 107 | !PageUptodate(page))) { |
fbfa2cc5 JK |
108 | unlock_page(page); |
109 | err = -EFAULT; | |
5a3a2d83 | 110 | goto out_sem; |
fbfa2cc5 JK |
111 | } |
112 | ||
4c8ff709 CY |
113 | if (need_alloc) { |
114 | /* block allocation */ | |
0ef81833 | 115 | f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true); |
4c8ff709 CY |
116 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
117 | err = f2fs_get_block(&dn, page->index); | |
0ef81833 | 118 | f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false); |
39a86958 CY |
119 | } |
120 | ||
06c7540f CY |
121 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
122 | if (!need_alloc) { | |
123 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
124 | err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE); | |
125 | f2fs_put_dnode(&dn); | |
126 | } | |
127 | #endif | |
128 | if (err) { | |
129 | unlock_page(page); | |
130 | goto out_sem; | |
39a86958 CY |
131 | } |
132 | ||
bae0ee7a | 133 | f2fs_wait_on_page_writeback(page, DATA, false, true); |
39a86958 CY |
134 | |
135 | /* wait for GCed page writeback via META_MAPPING */ | |
136 | f2fs_wait_on_block_writeback(inode, dn.data_blkaddr); | |
137 | ||
fbfa2cc5 JK |
138 | /* |
139 | * check to see if the page is mapped already (no holes) | |
140 | */ | |
141 | if (PageMappedToDisk(page)) | |
39a86958 | 142 | goto out_sem; |
fbfa2cc5 JK |
143 | |
144 | /* page is wholly or partially inside EOF */ | |
09cbfeaf | 145 | if (((loff_t)(page->index + 1) << PAGE_SHIFT) > |
9edcdabf | 146 | i_size_read(inode)) { |
193bea1d | 147 | loff_t offset; |
f11e98bd | 148 | |
09cbfeaf KS |
149 | offset = i_size_read(inode) & ~PAGE_MASK; |
150 | zero_user_segment(page, offset, PAGE_SIZE); | |
fbfa2cc5 JK |
151 | } |
152 | set_page_dirty(page); | |
237c0790 JK |
153 | if (!PageUptodate(page)) |
154 | SetPageUptodate(page); | |
fbfa2cc5 | 155 | |
b0af6d49 | 156 | f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE); |
c75f2feb | 157 | f2fs_update_time(sbi, REQ_TIME); |
b0af6d49 | 158 | |
e943a10d | 159 | trace_f2fs_vm_page_mkwrite(page, DATA); |
5a3a2d83 | 160 | out_sem: |
edc6d01b | 161 | filemap_invalidate_unlock_shared(inode->i_mapping); |
39a86958 | 162 | |
fbfa2cc5 | 163 | sb_end_pagefault(inode->i_sb); |
1f227a3e | 164 | err: |
fbfa2cc5 JK |
165 | return block_page_mkwrite_return(err); |
166 | } | |
167 | ||
168 | static const struct vm_operations_struct f2fs_file_vm_ops = { | |
5a3a2d83 | 169 | .fault = f2fs_filemap_fault, |
f1820361 | 170 | .map_pages = filemap_map_pages, |
692bb55d | 171 | .page_mkwrite = f2fs_vm_page_mkwrite, |
fbfa2cc5 JK |
172 | }; |
173 | ||
354a3399 JK |
174 | static int get_parent_ino(struct inode *inode, nid_t *pino) |
175 | { | |
176 | struct dentry *dentry; | |
177 | ||
84c9c2de EB |
178 | /* |
179 | * Make sure to get the non-deleted alias. The alias associated with | |
180 | * the open file descriptor being fsync()'ed may be deleted already. | |
181 | */ | |
182 | dentry = d_find_alias(inode); | |
354a3399 JK |
183 | if (!dentry) |
184 | return 0; | |
185 | ||
f0947e5c JK |
186 | *pino = parent_ino(dentry); |
187 | dput(dentry); | |
354a3399 JK |
188 | return 1; |
189 | } | |
190 | ||
a5fd5050 | 191 | static inline enum cp_reason_type need_do_checkpoint(struct inode *inode) |
9d1589ef | 192 | { |
4081363f | 193 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
a5fd5050 | 194 | enum cp_reason_type cp_reason = CP_NO_NEEDED; |
9d1589ef | 195 | |
a5fd5050 CY |
196 | if (!S_ISREG(inode->i_mode)) |
197 | cp_reason = CP_NON_REGULAR; | |
4c8ff709 CY |
198 | else if (f2fs_compressed_file(inode)) |
199 | cp_reason = CP_COMPRESSED; | |
a5fd5050 CY |
200 | else if (inode->i_nlink != 1) |
201 | cp_reason = CP_HARDLINK; | |
bbf156f7 | 202 | else if (is_sbi_flag_set(sbi, SBI_NEED_CP)) |
a5fd5050 | 203 | cp_reason = CP_SB_NEED_CP; |
9d1589ef | 204 | else if (file_wrong_pino(inode)) |
a5fd5050 | 205 | cp_reason = CP_WRONG_PINO; |
4d57b86d | 206 | else if (!f2fs_space_for_roll_forward(sbi)) |
a5fd5050 | 207 | cp_reason = CP_NO_SPC_ROLL; |
4d57b86d | 208 | else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino)) |
a5fd5050 | 209 | cp_reason = CP_NODE_NEED_CP; |
d5053a34 | 210 | else if (test_opt(sbi, FASTBOOT)) |
a5fd5050 | 211 | cp_reason = CP_FASTBOOT_MODE; |
63189b78 | 212 | else if (F2FS_OPTION(sbi).active_logs == 2) |
a5fd5050 | 213 | cp_reason = CP_SPEC_LOG_NUM; |
63189b78 | 214 | else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT && |
4d57b86d CY |
215 | f2fs_need_dentry_mark(sbi, inode->i_ino) && |
216 | f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino, | |
217 | TRANS_DIR_INO)) | |
0a007b97 | 218 | cp_reason = CP_RECOVER_DIR; |
9d1589ef | 219 | |
a5fd5050 | 220 | return cp_reason; |
9d1589ef CY |
221 | } |
222 | ||
9c7bb702 CL |
223 | static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino) |
224 | { | |
225 | struct page *i = find_get_page(NODE_MAPPING(sbi), ino); | |
226 | bool ret = false; | |
227 | /* But we need to avoid that there are some inode updates */ | |
4d57b86d | 228 | if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino)) |
9c7bb702 CL |
229 | ret = true; |
230 | f2fs_put_page(i, 0); | |
231 | return ret; | |
232 | } | |
233 | ||
51455b19 CL |
234 | static void try_to_fix_pino(struct inode *inode) |
235 | { | |
236 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
237 | nid_t pino; | |
238 | ||
239 | down_write(&fi->i_sem); | |
51455b19 CL |
240 | if (file_wrong_pino(inode) && inode->i_nlink == 1 && |
241 | get_parent_ino(inode, &pino)) { | |
205b9822 | 242 | f2fs_i_pino_write(inode, pino); |
51455b19 | 243 | file_got_pino(inode); |
51455b19 | 244 | } |
ee6d182f | 245 | up_write(&fi->i_sem); |
51455b19 CL |
246 | } |
247 | ||
608514de JK |
248 | static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end, |
249 | int datasync, bool atomic) | |
fbfa2cc5 JK |
250 | { |
251 | struct inode *inode = file->f_mapping->host; | |
4081363f | 252 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
2403c155 | 253 | nid_t ino = inode->i_ino; |
fbfa2cc5 | 254 | int ret = 0; |
a5fd5050 | 255 | enum cp_reason_type cp_reason = 0; |
fbfa2cc5 | 256 | struct writeback_control wbc = { |
c81bf1c8 | 257 | .sync_mode = WB_SYNC_ALL, |
fbfa2cc5 JK |
258 | .nr_to_write = LONG_MAX, |
259 | .for_reclaim = 0, | |
260 | }; | |
50fa53ec | 261 | unsigned int seq_id = 0; |
fbfa2cc5 | 262 | |
dddd3d65 | 263 | if (unlikely(f2fs_readonly(inode->i_sb))) |
1fa95b0b NJ |
264 | return 0; |
265 | ||
a2a4a7e4 | 266 | trace_f2fs_sync_file_enter(inode); |
ea1aa12c | 267 | |
b61ac5b7 YH |
268 | if (S_ISDIR(inode->i_mode)) |
269 | goto go_write; | |
270 | ||
ea1aa12c | 271 | /* if fdatasync is triggered, let's do in-place-update */ |
c46a155b | 272 | if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks) |
91942321 | 273 | set_inode_flag(inode, FI_NEED_IPU); |
3b49c9a1 | 274 | ret = file_write_and_wait_range(file, start, end); |
91942321 | 275 | clear_inode_flag(inode, FI_NEED_IPU); |
c1ce1b02 | 276 | |
dddd3d65 | 277 | if (ret || is_sbi_flag_set(sbi, SBI_CP_DISABLED)) { |
a5fd5050 | 278 | trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret); |
fbfa2cc5 | 279 | return ret; |
a2a4a7e4 | 280 | } |
fbfa2cc5 | 281 | |
9c7bb702 | 282 | /* if the inode is dirty, let's recover all the time */ |
281518c6 | 283 | if (!f2fs_skip_inode_update(inode, datasync)) { |
2286c020 | 284 | f2fs_write_inode(inode, NULL); |
9c7bb702 CL |
285 | goto go_write; |
286 | } | |
287 | ||
6d99ba41 JK |
288 | /* |
289 | * if there is no written data, don't waste time to write recovery info. | |
290 | */ | |
91942321 | 291 | if (!is_inode_flag_set(inode, FI_APPEND_WRITE) && |
4d57b86d | 292 | !f2fs_exist_written_data(sbi, ino, APPEND_INO)) { |
19c9c466 | 293 | |
9c7bb702 CL |
294 | /* it may call write_inode just prior to fsync */ |
295 | if (need_inode_page_update(sbi, ino)) | |
19c9c466 | 296 | goto go_write; |
19c9c466 | 297 | |
91942321 | 298 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE) || |
4d57b86d | 299 | f2fs_exist_written_data(sbi, ino, UPDATE_INO)) |
6d99ba41 JK |
300 | goto flush_out; |
301 | goto out; | |
27879915 CY |
302 | } else { |
303 | /* | |
304 | * for OPU case, during fsync(), node can be persisted before | |
305 | * data when lower device doesn't support write barrier, result | |
306 | * in data corruption after SPO. | |
307 | * So for strict fsync mode, force to use atomic write sematics | |
308 | * to keep write order in between data/node and last node to | |
309 | * avoid potential data corruption. | |
310 | */ | |
311 | if (F2FS_OPTION(sbi).fsync_mode == | |
312 | FSYNC_MODE_STRICT && !atomic) | |
313 | atomic = true; | |
6d99ba41 | 314 | } |
19c9c466 | 315 | go_write: |
e5d2385e JK |
316 | /* |
317 | * Both of fdatasync() and fsync() are able to be recovered from | |
318 | * sudden-power-off. | |
319 | */ | |
91942321 | 320 | down_read(&F2FS_I(inode)->i_sem); |
a5fd5050 | 321 | cp_reason = need_do_checkpoint(inode); |
91942321 | 322 | up_read(&F2FS_I(inode)->i_sem); |
d928bfbf | 323 | |
a5fd5050 | 324 | if (cp_reason) { |
fbfa2cc5 JK |
325 | /* all the dirty node pages should be flushed for POR */ |
326 | ret = f2fs_sync_fs(inode->i_sb, 1); | |
d928bfbf | 327 | |
51455b19 CL |
328 | /* |
329 | * We've secured consistency through sync_fs. Following pino | |
330 | * will be used only for fsynced inodes after checkpoint. | |
331 | */ | |
332 | try_to_fix_pino(inode); | |
91942321 JK |
333 | clear_inode_flag(inode, FI_APPEND_WRITE); |
334 | clear_inode_flag(inode, FI_UPDATE_WRITE); | |
51455b19 CL |
335 | goto out; |
336 | } | |
88bd02c9 | 337 | sync_nodes: |
c29fd0c0 | 338 | atomic_inc(&sbi->wb_sync_req[NODE]); |
50fa53ec | 339 | ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id); |
c29fd0c0 | 340 | atomic_dec(&sbi->wb_sync_req[NODE]); |
c267ec15 JK |
341 | if (ret) |
342 | goto out; | |
51455b19 | 343 | |
871f599f | 344 | /* if cp_error was enabled, we should avoid infinite loop */ |
6d5a1495 CY |
345 | if (unlikely(f2fs_cp_error(sbi))) { |
346 | ret = -EIO; | |
871f599f | 347 | goto out; |
6d5a1495 | 348 | } |
871f599f | 349 | |
4d57b86d | 350 | if (f2fs_need_inode_block_update(sbi, ino)) { |
7c45729a | 351 | f2fs_mark_inode_dirty_sync(inode, true); |
51455b19 CL |
352 | f2fs_write_inode(inode, NULL); |
353 | goto sync_nodes; | |
fbfa2cc5 | 354 | } |
51455b19 | 355 | |
b6a245eb JK |
356 | /* |
357 | * If it's atomic_write, it's just fine to keep write ordering. So | |
358 | * here we don't need to wait for node write completion, since we use | |
359 | * node chain which serializes node blocks. If one of node writes are | |
360 | * reordered, we can see simply broken chain, resulting in stopping | |
361 | * roll-forward recovery. It means we'll recover all or none node blocks | |
362 | * given fsync mark. | |
363 | */ | |
364 | if (!atomic) { | |
50fa53ec | 365 | ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id); |
b6a245eb JK |
366 | if (ret) |
367 | goto out; | |
368 | } | |
51455b19 CL |
369 | |
370 | /* once recovery info is written, don't need to tack this */ | |
4d57b86d | 371 | f2fs_remove_ino_entry(sbi, ino, APPEND_INO); |
91942321 | 372 | clear_inode_flag(inode, FI_APPEND_WRITE); |
51455b19 | 373 | flush_out: |
d6290814 | 374 | if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER) |
39d787be | 375 | ret = f2fs_issue_flush(sbi, inode->i_ino); |
3f06252f | 376 | if (!ret) { |
4d57b86d | 377 | f2fs_remove_ino_entry(sbi, ino, UPDATE_INO); |
3f06252f | 378 | clear_inode_flag(inode, FI_UPDATE_WRITE); |
4d57b86d | 379 | f2fs_remove_ino_entry(sbi, ino, FLUSH_INO); |
3f06252f | 380 | } |
d0239e1b | 381 | f2fs_update_time(sbi, REQ_TIME); |
fbfa2cc5 | 382 | out: |
a5fd5050 | 383 | trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret); |
fbfa2cc5 JK |
384 | return ret; |
385 | } | |
386 | ||
608514de JK |
387 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) |
388 | { | |
1f227a3e JK |
389 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file))))) |
390 | return -EIO; | |
608514de JK |
391 | return f2fs_do_sync_file(file, start, end, datasync, false); |
392 | } | |
393 | ||
4cb03fec MWO |
394 | static bool __found_offset(struct address_space *mapping, block_t blkaddr, |
395 | pgoff_t index, int whence) | |
7f7670fe JK |
396 | { |
397 | switch (whence) { | |
398 | case SEEK_DATA: | |
4cb03fec MWO |
399 | if (__is_valid_data_blkaddr(blkaddr)) |
400 | return true; | |
401 | if (blkaddr == NEW_ADDR && | |
402 | xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY)) | |
7f7670fe JK |
403 | return true; |
404 | break; | |
405 | case SEEK_HOLE: | |
406 | if (blkaddr == NULL_ADDR) | |
407 | return true; | |
408 | break; | |
409 | } | |
410 | return false; | |
411 | } | |
412 | ||
267378d4 CY |
413 | static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence) |
414 | { | |
415 | struct inode *inode = file->f_mapping->host; | |
416 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
417 | struct dnode_of_data dn; | |
4cb03fec | 418 | pgoff_t pgofs, end_offset; |
7f7670fe JK |
419 | loff_t data_ofs = offset; |
420 | loff_t isize; | |
267378d4 CY |
421 | int err = 0; |
422 | ||
5955102c | 423 | inode_lock(inode); |
267378d4 CY |
424 | |
425 | isize = i_size_read(inode); | |
426 | if (offset >= isize) | |
427 | goto fail; | |
428 | ||
429 | /* handle inline data case */ | |
7a6e59d7 CY |
430 | if (f2fs_has_inline_data(inode)) { |
431 | if (whence == SEEK_HOLE) { | |
432 | data_ofs = isize; | |
433 | goto found; | |
434 | } else if (whence == SEEK_DATA) { | |
435 | data_ofs = offset; | |
436 | goto found; | |
437 | } | |
267378d4 CY |
438 | } |
439 | ||
09cbfeaf | 440 | pgofs = (pgoff_t)(offset >> PAGE_SHIFT); |
267378d4 | 441 | |
09cbfeaf | 442 | for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) { |
267378d4 | 443 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 444 | err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE); |
267378d4 CY |
445 | if (err && err != -ENOENT) { |
446 | goto fail; | |
447 | } else if (err == -ENOENT) { | |
e1c42045 | 448 | /* direct node does not exists */ |
267378d4 | 449 | if (whence == SEEK_DATA) { |
4d57b86d | 450 | pgofs = f2fs_get_next_page_offset(&dn, pgofs); |
267378d4 CY |
451 | continue; |
452 | } else { | |
453 | goto found; | |
454 | } | |
455 | } | |
456 | ||
81ca7350 | 457 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
267378d4 CY |
458 | |
459 | /* find data/hole in dnode block */ | |
460 | for (; dn.ofs_in_node < end_offset; | |
461 | dn.ofs_in_node++, pgofs++, | |
09cbfeaf | 462 | data_ofs = (loff_t)pgofs << PAGE_SHIFT) { |
267378d4 | 463 | block_t blkaddr; |
f11e98bd | 464 | |
a2ced1ce | 465 | blkaddr = f2fs_data_blkaddr(&dn); |
267378d4 | 466 | |
c9b60788 CY |
467 | if (__is_valid_data_blkaddr(blkaddr) && |
468 | !f2fs_is_valid_blkaddr(F2FS_I_SB(inode), | |
93770ab7 | 469 | blkaddr, DATA_GENERIC_ENHANCE)) { |
c9b60788 CY |
470 | f2fs_put_dnode(&dn); |
471 | goto fail; | |
472 | } | |
473 | ||
4cb03fec | 474 | if (__found_offset(file->f_mapping, blkaddr, |
e1da7872 | 475 | pgofs, whence)) { |
267378d4 CY |
476 | f2fs_put_dnode(&dn); |
477 | goto found; | |
478 | } | |
479 | } | |
480 | f2fs_put_dnode(&dn); | |
481 | } | |
482 | ||
483 | if (whence == SEEK_DATA) | |
484 | goto fail; | |
267378d4 | 485 | found: |
fe369bc8 JK |
486 | if (whence == SEEK_HOLE && data_ofs > isize) |
487 | data_ofs = isize; | |
5955102c | 488 | inode_unlock(inode); |
267378d4 CY |
489 | return vfs_setpos(file, data_ofs, maxbytes); |
490 | fail: | |
5955102c | 491 | inode_unlock(inode); |
267378d4 CY |
492 | return -ENXIO; |
493 | } | |
494 | ||
495 | static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence) | |
496 | { | |
497 | struct inode *inode = file->f_mapping->host; | |
498 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
499 | ||
6d1451bf CX |
500 | if (f2fs_compressed_file(inode)) |
501 | maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS; | |
502 | ||
267378d4 CY |
503 | switch (whence) { |
504 | case SEEK_SET: | |
505 | case SEEK_CUR: | |
506 | case SEEK_END: | |
507 | return generic_file_llseek_size(file, offset, whence, | |
508 | maxbytes, i_size_read(inode)); | |
509 | case SEEK_DATA: | |
510 | case SEEK_HOLE: | |
0b4c5afd JK |
511 | if (offset < 0) |
512 | return -ENXIO; | |
267378d4 CY |
513 | return f2fs_seek_block(file, offset, whence); |
514 | } | |
515 | ||
516 | return -EINVAL; | |
517 | } | |
518 | ||
fbfa2cc5 JK |
519 | static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) |
520 | { | |
b3d208f9 JK |
521 | struct inode *inode = file_inode(file); |
522 | ||
1f227a3e JK |
523 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
524 | return -EIO; | |
525 | ||
4c8ff709 CY |
526 | if (!f2fs_is_compress_backend_ready(inode)) |
527 | return -EOPNOTSUPP; | |
528 | ||
fbfa2cc5 JK |
529 | file_accessed(file); |
530 | vma->vm_ops = &f2fs_file_vm_ops; | |
4c8ff709 | 531 | set_inode_flag(inode, FI_MMAP_FILE); |
fbfa2cc5 JK |
532 | return 0; |
533 | } | |
534 | ||
fcc85a4d JK |
535 | static int f2fs_file_open(struct inode *inode, struct file *filp) |
536 | { | |
2e168c82 | 537 | int err = fscrypt_file_open(inode, filp); |
fcc85a4d | 538 | |
95ae251f EB |
539 | if (err) |
540 | return err; | |
541 | ||
4c8ff709 CY |
542 | if (!f2fs_is_compress_backend_ready(inode)) |
543 | return -EOPNOTSUPP; | |
544 | ||
95ae251f | 545 | err = fsverity_file_open(inode, filp); |
2e168c82 EB |
546 | if (err) |
547 | return err; | |
b91050a8 HL |
548 | |
549 | filp->f_mode |= FMODE_NOWAIT; | |
550 | ||
0abd675e | 551 | return dquot_file_open(inode, filp); |
fcc85a4d JK |
552 | } |
553 | ||
4d57b86d | 554 | void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count) |
fbfa2cc5 | 555 | { |
4081363f | 556 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
fbfa2cc5 | 557 | struct f2fs_node *raw_node; |
19b2c30d | 558 | int nr_free = 0, ofs = dn->ofs_in_node, len = count; |
fbfa2cc5 | 559 | __le32 *addr; |
7a2af766 | 560 | int base = 0; |
4c8ff709 CY |
561 | bool compressed_cluster = false; |
562 | int cluster_index = 0, valid_blocks = 0; | |
563 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
c2759eba | 564 | bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks); |
7a2af766 CY |
565 | |
566 | if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode)) | |
567 | base = get_extra_isize(dn->inode); | |
fbfa2cc5 | 568 | |
45590710 | 569 | raw_node = F2FS_NODE(dn->node_page); |
7a2af766 | 570 | addr = blkaddr_in_node(raw_node) + base + ofs; |
fbfa2cc5 | 571 | |
4c8ff709 CY |
572 | /* Assumption: truncateion starts with cluster */ |
573 | for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) { | |
fbfa2cc5 | 574 | block_t blkaddr = le32_to_cpu(*addr); |
f11e98bd | 575 | |
4c8ff709 CY |
576 | if (f2fs_compressed_file(dn->inode) && |
577 | !(cluster_index & (cluster_size - 1))) { | |
578 | if (compressed_cluster) | |
579 | f2fs_i_compr_blocks_update(dn->inode, | |
580 | valid_blocks, false); | |
581 | compressed_cluster = (blkaddr == COMPRESS_ADDR); | |
582 | valid_blocks = 0; | |
583 | } | |
584 | ||
fbfa2cc5 JK |
585 | if (blkaddr == NULL_ADDR) |
586 | continue; | |
587 | ||
e1509cf2 | 588 | dn->data_blkaddr = NULL_ADDR; |
4d57b86d | 589 | f2fs_set_data_blkaddr(dn); |
c9b60788 | 590 | |
4c8ff709 CY |
591 | if (__is_valid_data_blkaddr(blkaddr)) { |
592 | if (!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
93770ab7 | 593 | DATA_GENERIC_ENHANCE)) |
4c8ff709 CY |
594 | continue; |
595 | if (compressed_cluster) | |
596 | valid_blocks++; | |
597 | } | |
c9b60788 | 598 | |
3c6c2beb | 599 | if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page)) |
91942321 | 600 | clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN); |
4c8ff709 CY |
601 | |
602 | f2fs_invalidate_blocks(sbi, blkaddr); | |
ef8d563f CY |
603 | |
604 | if (!released || blkaddr != COMPRESS_ADDR) | |
605 | nr_free++; | |
fbfa2cc5 | 606 | } |
19b2c30d | 607 | |
4c8ff709 CY |
608 | if (compressed_cluster) |
609 | f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false); | |
610 | ||
fbfa2cc5 | 611 | if (nr_free) { |
19b2c30d CY |
612 | pgoff_t fofs; |
613 | /* | |
614 | * once we invalidate valid blkaddr in range [ofs, ofs + count], | |
615 | * we will invalidate all blkaddr in the whole range. | |
616 | */ | |
4d57b86d | 617 | fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page), |
81ca7350 | 618 | dn->inode) + ofs; |
19b2c30d | 619 | f2fs_update_extent_cache_range(dn, fofs, 0, len); |
d7cc950b | 620 | dec_valid_block_count(sbi, dn->inode, nr_free); |
fbfa2cc5 JK |
621 | } |
622 | dn->ofs_in_node = ofs; | |
51dd6249 | 623 | |
d0239e1b | 624 | f2fs_update_time(sbi, REQ_TIME); |
51dd6249 NJ |
625 | trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid, |
626 | dn->ofs_in_node, nr_free); | |
fbfa2cc5 JK |
627 | } |
628 | ||
4d57b86d | 629 | void f2fs_truncate_data_blocks(struct dnode_of_data *dn) |
fbfa2cc5 | 630 | { |
d02a6e61 | 631 | f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode)); |
fbfa2cc5 JK |
632 | } |
633 | ||
0bfcfcca | 634 | static int truncate_partial_data_page(struct inode *inode, u64 from, |
43f3eae1 | 635 | bool cache_only) |
fbfa2cc5 | 636 | { |
193bea1d | 637 | loff_t offset = from & (PAGE_SIZE - 1); |
09cbfeaf | 638 | pgoff_t index = from >> PAGE_SHIFT; |
43f3eae1 | 639 | struct address_space *mapping = inode->i_mapping; |
fbfa2cc5 JK |
640 | struct page *page; |
641 | ||
43f3eae1 | 642 | if (!offset && !cache_only) |
b3d208f9 | 643 | return 0; |
fbfa2cc5 | 644 | |
43f3eae1 | 645 | if (cache_only) { |
34b5d5c2 | 646 | page = find_lock_page(mapping, index); |
43f3eae1 JK |
647 | if (page && PageUptodate(page)) |
648 | goto truncate_out; | |
649 | f2fs_put_page(page, 1); | |
b3d208f9 | 650 | return 0; |
43f3eae1 | 651 | } |
fbfa2cc5 | 652 | |
4d57b86d | 653 | page = f2fs_get_lock_data_page(inode, index, true); |
43f3eae1 | 654 | if (IS_ERR(page)) |
a78aaa2c | 655 | return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page); |
43f3eae1 | 656 | truncate_out: |
bae0ee7a | 657 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
09cbfeaf | 658 | zero_user(page, offset, PAGE_SIZE - offset); |
a9bcf9bc JK |
659 | |
660 | /* An encrypted inode should have a key and truncate the last page. */ | |
62230e0d | 661 | f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode)); |
a9bcf9bc | 662 | if (!cache_only) |
0bfcfcca | 663 | set_page_dirty(page); |
fbfa2cc5 | 664 | f2fs_put_page(page, 1); |
b3d208f9 | 665 | return 0; |
fbfa2cc5 JK |
666 | } |
667 | ||
3265d3db | 668 | int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock) |
fbfa2cc5 | 669 | { |
4081363f | 670 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
671 | struct dnode_of_data dn; |
672 | pgoff_t free_from; | |
9ffe0fb5 | 673 | int count = 0, err = 0; |
b3d208f9 | 674 | struct page *ipage; |
0bfcfcca | 675 | bool truncate_page = false; |
fbfa2cc5 | 676 | |
51dd6249 NJ |
677 | trace_f2fs_truncate_blocks_enter(inode, from); |
678 | ||
df033caf | 679 | free_from = (pgoff_t)F2FS_BLK_ALIGN(from); |
fbfa2cc5 | 680 | |
6d1451bf | 681 | if (free_from >= max_file_blocks(inode)) |
09210c97 CY |
682 | goto free_partial; |
683 | ||
764aa3e9 | 684 | if (lock) |
c42d28ce | 685 | f2fs_lock_op(sbi); |
9ffe0fb5 | 686 | |
4d57b86d | 687 | ipage = f2fs_get_node_page(sbi, inode->i_ino); |
b3d208f9 JK |
688 | if (IS_ERR(ipage)) { |
689 | err = PTR_ERR(ipage); | |
690 | goto out; | |
691 | } | |
692 | ||
693 | if (f2fs_has_inline_data(inode)) { | |
4d57b86d | 694 | f2fs_truncate_inline_inode(inode, ipage, from); |
b3d208f9 | 695 | f2fs_put_page(ipage, 1); |
0bfcfcca | 696 | truncate_page = true; |
b3d208f9 JK |
697 | goto out; |
698 | } | |
699 | ||
700 | set_new_dnode(&dn, inode, ipage, NULL, 0); | |
4d57b86d | 701 | err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA); |
fbfa2cc5 JK |
702 | if (err) { |
703 | if (err == -ENOENT) | |
704 | goto free_next; | |
b3d208f9 | 705 | goto out; |
1ce86bf6 JK |
706 | } |
707 | ||
81ca7350 | 708 | count = ADDRS_PER_PAGE(dn.node_page, inode); |
fbfa2cc5 JK |
709 | |
710 | count -= dn.ofs_in_node; | |
9850cf4a | 711 | f2fs_bug_on(sbi, count < 0); |
39936837 | 712 | |
fbfa2cc5 | 713 | if (dn.ofs_in_node || IS_INODE(dn.node_page)) { |
4d57b86d | 714 | f2fs_truncate_data_blocks_range(&dn, count); |
fbfa2cc5 JK |
715 | free_from += count; |
716 | } | |
717 | ||
718 | f2fs_put_dnode(&dn); | |
719 | free_next: | |
4d57b86d | 720 | err = f2fs_truncate_inode_blocks(inode, free_from); |
764d2c80 JK |
721 | out: |
722 | if (lock) | |
c42d28ce | 723 | f2fs_unlock_op(sbi); |
09210c97 | 724 | free_partial: |
b3d208f9 JK |
725 | /* lastly zero out the first data page */ |
726 | if (!err) | |
0bfcfcca | 727 | err = truncate_partial_data_page(inode, from, truncate_page); |
fbfa2cc5 | 728 | |
51dd6249 | 729 | trace_f2fs_truncate_blocks_exit(inode, err); |
fbfa2cc5 JK |
730 | return err; |
731 | } | |
732 | ||
4c8ff709 CY |
733 | int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock) |
734 | { | |
735 | u64 free_from = from; | |
3265d3db | 736 | int err; |
4c8ff709 | 737 | |
3265d3db | 738 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
4c8ff709 CY |
739 | /* |
740 | * for compressed file, only support cluster size | |
741 | * aligned truncation. | |
742 | */ | |
4fec3fc0 CY |
743 | if (f2fs_compressed_file(inode)) |
744 | free_from = round_up(from, | |
745 | F2FS_I(inode)->i_cluster_size << PAGE_SHIFT); | |
3265d3db CY |
746 | #endif |
747 | ||
748 | err = f2fs_do_truncate_blocks(inode, free_from, lock); | |
749 | if (err) | |
750 | return err; | |
751 | ||
752 | #ifdef CONFIG_F2FS_FS_COMPRESSION | |
4a4fc043 FC |
753 | /* |
754 | * For compressed file, after release compress blocks, don't allow write | |
755 | * direct, but we should allow write direct after truncate to zero. | |
756 | */ | |
757 | if (f2fs_compressed_file(inode) && !free_from | |
758 | && is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) | |
759 | clear_inode_flag(inode, FI_COMPRESS_RELEASED); | |
760 | ||
17d7648d | 761 | if (from != free_from) { |
3265d3db | 762 | err = f2fs_truncate_partial_cluster(inode, from, lock); |
17d7648d CY |
763 | if (err) |
764 | return err; | |
765 | } | |
3265d3db | 766 | #endif |
4c8ff709 | 767 | |
17d7648d | 768 | return 0; |
4c8ff709 CY |
769 | } |
770 | ||
9a449e9c | 771 | int f2fs_truncate(struct inode *inode) |
fbfa2cc5 | 772 | { |
b0154891 CY |
773 | int err; |
774 | ||
1f227a3e JK |
775 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
776 | return -EIO; | |
777 | ||
fbfa2cc5 JK |
778 | if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || |
779 | S_ISLNK(inode->i_mode))) | |
b0154891 | 780 | return 0; |
fbfa2cc5 | 781 | |
51dd6249 NJ |
782 | trace_f2fs_truncate(inode); |
783 | ||
14b44d23 | 784 | if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) { |
c45d6002 | 785 | f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE); |
14b44d23 JK |
786 | return -EIO; |
787 | } | |
7fa750a1 | 788 | |
25fb04db YC |
789 | err = dquot_initialize(inode); |
790 | if (err) | |
791 | return err; | |
792 | ||
92dffd01 | 793 | /* we should check inline_data size */ |
b9d777b8 | 794 | if (!f2fs_may_inline_data(inode)) { |
b0154891 CY |
795 | err = f2fs_convert_inline_inode(inode); |
796 | if (err) | |
797 | return err; | |
92dffd01 JK |
798 | } |
799 | ||
c42d28ce | 800 | err = f2fs_truncate_blocks(inode, i_size_read(inode), true); |
b0154891 CY |
801 | if (err) |
802 | return err; | |
803 | ||
078cd827 | 804 | inode->i_mtime = inode->i_ctime = current_time(inode); |
7c45729a | 805 | f2fs_mark_inode_dirty_sync(inode, false); |
b0154891 | 806 | return 0; |
fbfa2cc5 JK |
807 | } |
808 | ||
549c7297 CB |
809 | int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path, |
810 | struct kstat *stat, u32 request_mask, unsigned int query_flags) | |
fbfa2cc5 | 811 | { |
a528d35e | 812 | struct inode *inode = d_inode(path->dentry); |
1c6d8ee4 | 813 | struct f2fs_inode_info *fi = F2FS_I(inode); |
1c1d35df | 814 | struct f2fs_inode *ri; |
1c6d8ee4 CY |
815 | unsigned int flags; |
816 | ||
1c1d35df | 817 | if (f2fs_has_extra_attr(inode) && |
7beb01f7 | 818 | f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && |
1c1d35df CY |
819 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { |
820 | stat->result_mask |= STATX_BTIME; | |
821 | stat->btime.tv_sec = fi->i_crtime.tv_sec; | |
822 | stat->btime.tv_nsec = fi->i_crtime.tv_nsec; | |
823 | } | |
824 | ||
36098557 | 825 | flags = fi->i_flags; |
fd26725f CY |
826 | if (flags & F2FS_COMPR_FL) |
827 | stat->attributes |= STATX_ATTR_COMPRESSED; | |
59c84408 | 828 | if (flags & F2FS_APPEND_FL) |
1c6d8ee4 | 829 | stat->attributes |= STATX_ATTR_APPEND; |
62230e0d | 830 | if (IS_ENCRYPTED(inode)) |
1c6d8ee4 | 831 | stat->attributes |= STATX_ATTR_ENCRYPTED; |
59c84408 | 832 | if (flags & F2FS_IMMUTABLE_FL) |
1c6d8ee4 | 833 | stat->attributes |= STATX_ATTR_IMMUTABLE; |
59c84408 | 834 | if (flags & F2FS_NODUMP_FL) |
1c6d8ee4 | 835 | stat->attributes |= STATX_ATTR_NODUMP; |
924e3194 EB |
836 | if (IS_VERITY(inode)) |
837 | stat->attributes |= STATX_ATTR_VERITY; | |
1c6d8ee4 | 838 | |
fd26725f CY |
839 | stat->attributes_mask |= (STATX_ATTR_COMPRESSED | |
840 | STATX_ATTR_APPEND | | |
1c6d8ee4 CY |
841 | STATX_ATTR_ENCRYPTED | |
842 | STATX_ATTR_IMMUTABLE | | |
924e3194 EB |
843 | STATX_ATTR_NODUMP | |
844 | STATX_ATTR_VERITY); | |
1c6d8ee4 | 845 | |
0d56a451 | 846 | generic_fillattr(&init_user_ns, inode, stat); |
5b4267d1 JK |
847 | |
848 | /* we need to show initial sectors used for inline_data/dentries */ | |
849 | if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) || | |
850 | f2fs_has_inline_dentry(inode)) | |
851 | stat->blocks += (stat->size + 511) >> 9; | |
852 | ||
fbfa2cc5 JK |
853 | return 0; |
854 | } | |
855 | ||
856 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
e65ce2a5 CB |
857 | static void __setattr_copy(struct user_namespace *mnt_userns, |
858 | struct inode *inode, const struct iattr *attr) | |
fbfa2cc5 | 859 | { |
fbfa2cc5 JK |
860 | unsigned int ia_valid = attr->ia_valid; |
861 | ||
862 | if (ia_valid & ATTR_UID) | |
863 | inode->i_uid = attr->ia_uid; | |
864 | if (ia_valid & ATTR_GID) | |
865 | inode->i_gid = attr->ia_gid; | |
eb31e2f6 AG |
866 | if (ia_valid & ATTR_ATIME) |
867 | inode->i_atime = attr->ia_atime; | |
868 | if (ia_valid & ATTR_MTIME) | |
869 | inode->i_mtime = attr->ia_mtime; | |
870 | if (ia_valid & ATTR_CTIME) | |
871 | inode->i_ctime = attr->ia_ctime; | |
fbfa2cc5 JK |
872 | if (ia_valid & ATTR_MODE) { |
873 | umode_t mode = attr->ia_mode; | |
2f221d6f | 874 | kgid_t kgid = i_gid_into_mnt(mnt_userns, inode); |
fbfa2cc5 | 875 | |
7d6beb71 | 876 | if (!in_group_p(kgid) && !capable_wrt_inode_uidgid(mnt_userns, inode, CAP_FSETID)) |
fbfa2cc5 | 877 | mode &= ~S_ISGID; |
91942321 | 878 | set_acl_inode(inode, mode); |
fbfa2cc5 JK |
879 | } |
880 | } | |
881 | #else | |
882 | #define __setattr_copy setattr_copy | |
883 | #endif | |
884 | ||
549c7297 CB |
885 | int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry, |
886 | struct iattr *attr) | |
fbfa2cc5 | 887 | { |
2b0143b5 | 888 | struct inode *inode = d_inode(dentry); |
fbfa2cc5 JK |
889 | int err; |
890 | ||
1f227a3e JK |
891 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
892 | return -EIO; | |
893 | ||
e0fcd015 CY |
894 | if (unlikely(IS_IMMUTABLE(inode))) |
895 | return -EPERM; | |
896 | ||
897 | if (unlikely(IS_APPEND(inode) && | |
898 | (attr->ia_valid & (ATTR_MODE | ATTR_UID | | |
899 | ATTR_GID | ATTR_TIMES_SET)))) | |
900 | return -EPERM; | |
901 | ||
4c8ff709 CY |
902 | if ((attr->ia_valid & ATTR_SIZE) && |
903 | !f2fs_is_compress_backend_ready(inode)) | |
904 | return -EOPNOTSUPP; | |
905 | ||
2f221d6f | 906 | err = setattr_prepare(&init_user_ns, dentry, attr); |
fbfa2cc5 JK |
907 | if (err) |
908 | return err; | |
909 | ||
20bb2479 EB |
910 | err = fscrypt_prepare_setattr(dentry, attr); |
911 | if (err) | |
912 | return err; | |
913 | ||
95ae251f EB |
914 | err = fsverity_prepare_setattr(dentry, attr); |
915 | if (err) | |
916 | return err; | |
917 | ||
0abd675e CY |
918 | if (is_quota_modification(inode, attr)) { |
919 | err = dquot_initialize(inode); | |
920 | if (err) | |
921 | return err; | |
922 | } | |
923 | if ((attr->ia_valid & ATTR_UID && | |
924 | !uid_eq(attr->ia_uid, inode->i_uid)) || | |
925 | (attr->ia_valid & ATTR_GID && | |
926 | !gid_eq(attr->ia_gid, inode->i_gid))) { | |
af033b2a | 927 | f2fs_lock_op(F2FS_I_SB(inode)); |
0abd675e | 928 | err = dquot_transfer(inode, attr); |
af033b2a CY |
929 | if (err) { |
930 | set_sbi_flag(F2FS_I_SB(inode), | |
931 | SBI_QUOTA_NEED_REPAIR); | |
932 | f2fs_unlock_op(F2FS_I_SB(inode)); | |
0abd675e | 933 | return err; |
af033b2a CY |
934 | } |
935 | /* | |
936 | * update uid/gid under lock_op(), so that dquot and inode can | |
937 | * be updated atomically. | |
938 | */ | |
939 | if (attr->ia_valid & ATTR_UID) | |
940 | inode->i_uid = attr->ia_uid; | |
941 | if (attr->ia_valid & ATTR_GID) | |
942 | inode->i_gid = attr->ia_gid; | |
943 | f2fs_mark_inode_dirty_sync(inode, true); | |
944 | f2fs_unlock_op(F2FS_I_SB(inode)); | |
0abd675e CY |
945 | } |
946 | ||
09db6a2e | 947 | if (attr->ia_valid & ATTR_SIZE) { |
cfb9a34d JK |
948 | loff_t old_size = i_size_read(inode); |
949 | ||
950 | if (attr->ia_size > MAX_INLINE_DATA(inode)) { | |
951 | /* | |
952 | * should convert inline inode before i_size_write to | |
953 | * keep smaller than inline_data size with inline flag. | |
954 | */ | |
955 | err = f2fs_convert_inline_inode(inode); | |
956 | if (err) | |
957 | return err; | |
958 | } | |
a33c1502 | 959 | |
a33c1502 | 960 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 961 | filemap_invalidate_lock(inode->i_mapping); |
a33c1502 CY |
962 | |
963 | truncate_setsize(inode, attr->ia_size); | |
964 | ||
cfb9a34d | 965 | if (attr->ia_size <= old_size) |
9a449e9c | 966 | err = f2fs_truncate(inode); |
a33c1502 CY |
967 | /* |
968 | * do not trim all blocks after i_size if target size is | |
969 | * larger than i_size. | |
970 | */ | |
edc6d01b | 971 | filemap_invalidate_unlock(inode->i_mapping); |
6f8d4455 | 972 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
a33c1502 CY |
973 | if (err) |
974 | return err; | |
0cab80ee | 975 | |
c10c9820 | 976 | spin_lock(&F2FS_I(inode)->i_size_lock); |
cfb9a34d | 977 | inode->i_mtime = inode->i_ctime = current_time(inode); |
a0d00fad | 978 | F2FS_I(inode)->last_disk_size = i_size_read(inode); |
c10c9820 | 979 | spin_unlock(&F2FS_I(inode)->i_size_lock); |
fbfa2cc5 JK |
980 | } |
981 | ||
2f221d6f | 982 | __setattr_copy(&init_user_ns, inode, attr); |
fbfa2cc5 JK |
983 | |
984 | if (attr->ia_valid & ATTR_MODE) { | |
7d6beb71 | 985 | err = posix_acl_chmod(&init_user_ns, inode, f2fs_get_inode_mode(inode)); |
17232e83 CY |
986 | |
987 | if (is_inode_flag_set(inode, FI_ACL_MODE)) { | |
988 | if (!err) | |
989 | inode->i_mode = F2FS_I(inode)->i_acl_mode; | |
91942321 | 990 | clear_inode_flag(inode, FI_ACL_MODE); |
fbfa2cc5 JK |
991 | } |
992 | } | |
993 | ||
c0ed4405 | 994 | /* file size may changed here */ |
ca597bdd | 995 | f2fs_mark_inode_dirty_sync(inode, true); |
15d04354 JK |
996 | |
997 | /* inode change will produce dirty node pages flushed by checkpoint */ | |
998 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
999 | ||
fbfa2cc5 JK |
1000 | return err; |
1001 | } | |
1002 | ||
1003 | const struct inode_operations f2fs_file_inode_operations = { | |
1004 | .getattr = f2fs_getattr, | |
1005 | .setattr = f2fs_setattr, | |
1006 | .get_acl = f2fs_get_acl, | |
a6dda0e6 | 1007 | .set_acl = f2fs_set_acl, |
fbfa2cc5 | 1008 | .listxattr = f2fs_listxattr, |
9ab70134 | 1009 | .fiemap = f2fs_fiemap, |
9b1bb01c MS |
1010 | .fileattr_get = f2fs_fileattr_get, |
1011 | .fileattr_set = f2fs_fileattr_set, | |
fbfa2cc5 JK |
1012 | }; |
1013 | ||
6394328a | 1014 | static int fill_zero(struct inode *inode, pgoff_t index, |
fbfa2cc5 JK |
1015 | loff_t start, loff_t len) |
1016 | { | |
4081363f | 1017 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
1018 | struct page *page; |
1019 | ||
1020 | if (!len) | |
6394328a | 1021 | return 0; |
fbfa2cc5 | 1022 | |
2c4db1a6 | 1023 | f2fs_balance_fs(sbi, true); |
bd43df02 | 1024 | |
e479556b | 1025 | f2fs_lock_op(sbi); |
4d57b86d | 1026 | page = f2fs_get_new_data_page(inode, NULL, index, false); |
e479556b | 1027 | f2fs_unlock_op(sbi); |
fbfa2cc5 | 1028 | |
6394328a CY |
1029 | if (IS_ERR(page)) |
1030 | return PTR_ERR(page); | |
1031 | ||
bae0ee7a | 1032 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
6394328a CY |
1033 | zero_user(page, start, len); |
1034 | set_page_dirty(page); | |
1035 | f2fs_put_page(page, 1); | |
1036 | return 0; | |
fbfa2cc5 JK |
1037 | } |
1038 | ||
4d57b86d | 1039 | int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end) |
fbfa2cc5 | 1040 | { |
fbfa2cc5 JK |
1041 | int err; |
1042 | ||
ea58711e | 1043 | while (pg_start < pg_end) { |
fbfa2cc5 | 1044 | struct dnode_of_data dn; |
ea58711e | 1045 | pgoff_t end_offset, count; |
9eaeba70 | 1046 | |
fbfa2cc5 | 1047 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1048 | err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE); |
fbfa2cc5 | 1049 | if (err) { |
ea58711e | 1050 | if (err == -ENOENT) { |
4d57b86d CY |
1051 | pg_start = f2fs_get_next_page_offset(&dn, |
1052 | pg_start); | |
fbfa2cc5 | 1053 | continue; |
ea58711e | 1054 | } |
fbfa2cc5 JK |
1055 | return err; |
1056 | } | |
1057 | ||
81ca7350 | 1058 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
ea58711e CY |
1059 | count = min(end_offset - dn.ofs_in_node, pg_end - pg_start); |
1060 | ||
1061 | f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset); | |
1062 | ||
4d57b86d | 1063 | f2fs_truncate_data_blocks_range(&dn, count); |
fbfa2cc5 | 1064 | f2fs_put_dnode(&dn); |
ea58711e CY |
1065 | |
1066 | pg_start += count; | |
fbfa2cc5 JK |
1067 | } |
1068 | return 0; | |
1069 | } | |
1070 | ||
a66c7b2f | 1071 | static int punch_hole(struct inode *inode, loff_t offset, loff_t len) |
fbfa2cc5 JK |
1072 | { |
1073 | pgoff_t pg_start, pg_end; | |
1074 | loff_t off_start, off_end; | |
b9d777b8 | 1075 | int ret; |
fbfa2cc5 | 1076 | |
b9d777b8 JK |
1077 | ret = f2fs_convert_inline_inode(inode); |
1078 | if (ret) | |
1079 | return ret; | |
9ffe0fb5 | 1080 | |
09cbfeaf KS |
1081 | pg_start = ((unsigned long long) offset) >> PAGE_SHIFT; |
1082 | pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT; | |
fbfa2cc5 | 1083 | |
09cbfeaf KS |
1084 | off_start = offset & (PAGE_SIZE - 1); |
1085 | off_end = (offset + len) & (PAGE_SIZE - 1); | |
fbfa2cc5 JK |
1086 | |
1087 | if (pg_start == pg_end) { | |
6394328a | 1088 | ret = fill_zero(inode, pg_start, off_start, |
fbfa2cc5 | 1089 | off_end - off_start); |
6394328a CY |
1090 | if (ret) |
1091 | return ret; | |
fbfa2cc5 | 1092 | } else { |
6394328a CY |
1093 | if (off_start) { |
1094 | ret = fill_zero(inode, pg_start++, off_start, | |
09cbfeaf | 1095 | PAGE_SIZE - off_start); |
6394328a CY |
1096 | if (ret) |
1097 | return ret; | |
1098 | } | |
1099 | if (off_end) { | |
1100 | ret = fill_zero(inode, pg_end, 0, off_end); | |
1101 | if (ret) | |
1102 | return ret; | |
1103 | } | |
fbfa2cc5 JK |
1104 | |
1105 | if (pg_start < pg_end) { | |
fbfa2cc5 | 1106 | loff_t blk_start, blk_end; |
4081363f | 1107 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1127a3d4 | 1108 | |
2c4db1a6 | 1109 | f2fs_balance_fs(sbi, true); |
fbfa2cc5 | 1110 | |
09cbfeaf KS |
1111 | blk_start = (loff_t)pg_start << PAGE_SHIFT; |
1112 | blk_end = (loff_t)pg_end << PAGE_SHIFT; | |
a33c1502 | 1113 | |
a33c1502 | 1114 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
6abaa83c | 1115 | filemap_invalidate_lock(inode->i_mapping); |
a33c1502 | 1116 | |
c8dc3047 | 1117 | truncate_pagecache_range(inode, blk_start, blk_end - 1); |
39936837 | 1118 | |
e479556b | 1119 | f2fs_lock_op(sbi); |
4d57b86d | 1120 | ret = f2fs_truncate_hole(inode, pg_start, pg_end); |
e479556b | 1121 | f2fs_unlock_op(sbi); |
a33c1502 | 1122 | |
6abaa83c | 1123 | filemap_invalidate_unlock(inode->i_mapping); |
6f8d4455 | 1124 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
fbfa2cc5 JK |
1125 | } |
1126 | } | |
1127 | ||
fbfa2cc5 JK |
1128 | return ret; |
1129 | } | |
1130 | ||
0a2aa8fb JK |
1131 | static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr, |
1132 | int *do_replace, pgoff_t off, pgoff_t len) | |
b4ace337 CY |
1133 | { |
1134 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1135 | struct dnode_of_data dn; | |
0a2aa8fb | 1136 | int ret, done, i; |
ecbaa406 | 1137 | |
0a2aa8fb | 1138 | next_dnode: |
6e2c64ad | 1139 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1140 | ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA); |
6e2c64ad JK |
1141 | if (ret && ret != -ENOENT) { |
1142 | return ret; | |
1143 | } else if (ret == -ENOENT) { | |
0a2aa8fb JK |
1144 | if (dn.max_level == 0) |
1145 | return -ENOENT; | |
4c8ff709 CY |
1146 | done = min((pgoff_t)ADDRS_PER_BLOCK(inode) - |
1147 | dn.ofs_in_node, len); | |
0a2aa8fb JK |
1148 | blkaddr += done; |
1149 | do_replace += done; | |
1150 | goto next; | |
1151 | } | |
1152 | ||
1153 | done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) - | |
1154 | dn.ofs_in_node, len); | |
1155 | for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) { | |
a2ced1ce | 1156 | *blkaddr = f2fs_data_blkaddr(&dn); |
93770ab7 CY |
1157 | |
1158 | if (__is_valid_data_blkaddr(*blkaddr) && | |
1159 | !f2fs_is_valid_blkaddr(sbi, *blkaddr, | |
1160 | DATA_GENERIC_ENHANCE)) { | |
1161 | f2fs_put_dnode(&dn); | |
10f966bb | 1162 | return -EFSCORRUPTED; |
93770ab7 CY |
1163 | } |
1164 | ||
4d57b86d | 1165 | if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) { |
0a2aa8fb | 1166 | |
b0332a0f | 1167 | if (f2fs_lfs_mode(sbi)) { |
0a2aa8fb | 1168 | f2fs_put_dnode(&dn); |
fd114ab2 | 1169 | return -EOPNOTSUPP; |
0a2aa8fb JK |
1170 | } |
1171 | ||
6e2c64ad | 1172 | /* do not invalidate this block address */ |
f28b3434 | 1173 | f2fs_update_data_blkaddr(&dn, NULL_ADDR); |
0a2aa8fb | 1174 | *do_replace = 1; |
b4ace337 | 1175 | } |
6e2c64ad | 1176 | } |
0a2aa8fb JK |
1177 | f2fs_put_dnode(&dn); |
1178 | next: | |
1179 | len -= done; | |
1180 | off += done; | |
1181 | if (len) | |
1182 | goto next_dnode; | |
1183 | return 0; | |
1184 | } | |
b4ace337 | 1185 | |
0a2aa8fb JK |
1186 | static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr, |
1187 | int *do_replace, pgoff_t off, int len) | |
1188 | { | |
1189 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1190 | struct dnode_of_data dn; | |
1191 | int ret, i; | |
b4ace337 | 1192 | |
0a2aa8fb JK |
1193 | for (i = 0; i < len; i++, do_replace++, blkaddr++) { |
1194 | if (*do_replace == 0) | |
1195 | continue; | |
b4ace337 | 1196 | |
0a2aa8fb | 1197 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1198 | ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA); |
0a2aa8fb JK |
1199 | if (ret) { |
1200 | dec_valid_block_count(sbi, inode, 1); | |
4d57b86d | 1201 | f2fs_invalidate_blocks(sbi, *blkaddr); |
0a2aa8fb JK |
1202 | } else { |
1203 | f2fs_update_data_blkaddr(&dn, *blkaddr); | |
36abef4e | 1204 | } |
0a2aa8fb JK |
1205 | f2fs_put_dnode(&dn); |
1206 | } | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode, | |
1211 | block_t *blkaddr, int *do_replace, | |
1212 | pgoff_t src, pgoff_t dst, pgoff_t len, bool full) | |
1213 | { | |
1214 | struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode); | |
1215 | pgoff_t i = 0; | |
1216 | int ret; | |
36abef4e | 1217 | |
0a2aa8fb JK |
1218 | while (i < len) { |
1219 | if (blkaddr[i] == NULL_ADDR && !full) { | |
1220 | i++; | |
1221 | continue; | |
6e2c64ad | 1222 | } |
b4ace337 | 1223 | |
0a2aa8fb JK |
1224 | if (do_replace[i] || blkaddr[i] == NULL_ADDR) { |
1225 | struct dnode_of_data dn; | |
1226 | struct node_info ni; | |
1227 | size_t new_size; | |
1228 | pgoff_t ilen; | |
b4ace337 | 1229 | |
0a2aa8fb | 1230 | set_new_dnode(&dn, dst_inode, NULL, NULL, 0); |
4d57b86d | 1231 | ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE); |
0a2aa8fb JK |
1232 | if (ret) |
1233 | return ret; | |
b4ace337 | 1234 | |
7735730d CY |
1235 | ret = f2fs_get_node_info(sbi, dn.nid, &ni); |
1236 | if (ret) { | |
1237 | f2fs_put_dnode(&dn); | |
1238 | return ret; | |
1239 | } | |
1240 | ||
0a2aa8fb JK |
1241 | ilen = min((pgoff_t) |
1242 | ADDRS_PER_PAGE(dn.node_page, dst_inode) - | |
1243 | dn.ofs_in_node, len - i); | |
1244 | do { | |
a2ced1ce | 1245 | dn.data_blkaddr = f2fs_data_blkaddr(&dn); |
4d57b86d | 1246 | f2fs_truncate_data_blocks_range(&dn, 1); |
0a2aa8fb JK |
1247 | |
1248 | if (do_replace[i]) { | |
1249 | f2fs_i_blocks_write(src_inode, | |
0abd675e | 1250 | 1, false, false); |
0a2aa8fb | 1251 | f2fs_i_blocks_write(dst_inode, |
0abd675e | 1252 | 1, true, false); |
0a2aa8fb JK |
1253 | f2fs_replace_block(sbi, &dn, dn.data_blkaddr, |
1254 | blkaddr[i], ni.version, true, false); | |
1255 | ||
1256 | do_replace[i] = 0; | |
1257 | } | |
1258 | dn.ofs_in_node++; | |
1259 | i++; | |
1f0d5c91 | 1260 | new_size = (loff_t)(dst + i) << PAGE_SHIFT; |
0a2aa8fb JK |
1261 | if (dst_inode->i_size < new_size) |
1262 | f2fs_i_size_write(dst_inode, new_size); | |
e87f7329 | 1263 | } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR)); |
6e2c64ad | 1264 | |
0a2aa8fb JK |
1265 | f2fs_put_dnode(&dn); |
1266 | } else { | |
1267 | struct page *psrc, *pdst; | |
1268 | ||
4d57b86d CY |
1269 | psrc = f2fs_get_lock_data_page(src_inode, |
1270 | src + i, true); | |
0a2aa8fb JK |
1271 | if (IS_ERR(psrc)) |
1272 | return PTR_ERR(psrc); | |
4d57b86d | 1273 | pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i, |
0a2aa8fb JK |
1274 | true); |
1275 | if (IS_ERR(pdst)) { | |
1276 | f2fs_put_page(psrc, 1); | |
1277 | return PTR_ERR(pdst); | |
1278 | } | |
1279 | f2fs_copy_page(psrc, pdst); | |
1280 | set_page_dirty(pdst); | |
1281 | f2fs_put_page(pdst, 1); | |
6e2c64ad | 1282 | f2fs_put_page(psrc, 1); |
b4ace337 | 1283 | |
4d57b86d CY |
1284 | ret = f2fs_truncate_hole(src_inode, |
1285 | src + i, src + i + 1); | |
0a2aa8fb JK |
1286 | if (ret) |
1287 | return ret; | |
1288 | i++; | |
1289 | } | |
6e2c64ad JK |
1290 | } |
1291 | return 0; | |
0a2aa8fb | 1292 | } |
b4ace337 | 1293 | |
0a2aa8fb JK |
1294 | static int __exchange_data_block(struct inode *src_inode, |
1295 | struct inode *dst_inode, pgoff_t src, pgoff_t dst, | |
363cad7f | 1296 | pgoff_t len, bool full) |
0a2aa8fb JK |
1297 | { |
1298 | block_t *src_blkaddr; | |
1299 | int *do_replace; | |
363cad7f | 1300 | pgoff_t olen; |
0a2aa8fb JK |
1301 | int ret; |
1302 | ||
363cad7f | 1303 | while (len) { |
d02a6e61 | 1304 | olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len); |
0a2aa8fb | 1305 | |
628b3d14 | 1306 | src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode), |
9d2a789c | 1307 | array_size(olen, sizeof(block_t)), |
4f4460c0 | 1308 | GFP_NOFS); |
363cad7f JK |
1309 | if (!src_blkaddr) |
1310 | return -ENOMEM; | |
0a2aa8fb | 1311 | |
628b3d14 | 1312 | do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode), |
9d2a789c | 1313 | array_size(olen, sizeof(int)), |
4f4460c0 | 1314 | GFP_NOFS); |
363cad7f JK |
1315 | if (!do_replace) { |
1316 | kvfree(src_blkaddr); | |
1317 | return -ENOMEM; | |
1318 | } | |
0a2aa8fb | 1319 | |
363cad7f JK |
1320 | ret = __read_out_blkaddrs(src_inode, src_blkaddr, |
1321 | do_replace, src, olen); | |
1322 | if (ret) | |
1323 | goto roll_back; | |
0a2aa8fb | 1324 | |
363cad7f JK |
1325 | ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr, |
1326 | do_replace, src, dst, olen, full); | |
1327 | if (ret) | |
1328 | goto roll_back; | |
1329 | ||
1330 | src += olen; | |
1331 | dst += olen; | |
1332 | len -= olen; | |
1333 | ||
1334 | kvfree(src_blkaddr); | |
1335 | kvfree(do_replace); | |
1336 | } | |
0a2aa8fb JK |
1337 | return 0; |
1338 | ||
1339 | roll_back: | |
9fd62605 | 1340 | __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen); |
0a2aa8fb JK |
1341 | kvfree(src_blkaddr); |
1342 | kvfree(do_replace); | |
6e2c64ad JK |
1343 | return ret; |
1344 | } | |
b4ace337 | 1345 | |
6f8d4455 | 1346 | static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len) |
6e2c64ad JK |
1347 | { |
1348 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
f91108b8 | 1349 | pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); |
6f8d4455 JK |
1350 | pgoff_t start = offset >> PAGE_SHIFT; |
1351 | pgoff_t end = (offset + len) >> PAGE_SHIFT; | |
0a2aa8fb | 1352 | int ret; |
6e2c64ad | 1353 | |
0a2aa8fb | 1354 | f2fs_balance_fs(sbi, true); |
5f281fab | 1355 | |
6f8d4455 JK |
1356 | /* avoid gc operation during block exchange */ |
1357 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); | |
edc6d01b | 1358 | filemap_invalidate_lock(inode->i_mapping); |
5f281fab | 1359 | |
6f8d4455 JK |
1360 | f2fs_lock_op(sbi); |
1361 | f2fs_drop_extent_tree(inode); | |
1362 | truncate_pagecache(inode, offset); | |
0a2aa8fb JK |
1363 | ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true); |
1364 | f2fs_unlock_op(sbi); | |
6f8d4455 | 1365 | |
edc6d01b | 1366 | filemap_invalidate_unlock(inode->i_mapping); |
6f8d4455 | 1367 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
b4ace337 CY |
1368 | return ret; |
1369 | } | |
1370 | ||
1371 | static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len) | |
1372 | { | |
b4ace337 CY |
1373 | loff_t new_size; |
1374 | int ret; | |
1375 | ||
b4ace337 CY |
1376 | if (offset + len >= i_size_read(inode)) |
1377 | return -EINVAL; | |
1378 | ||
1379 | /* collapse range should be aligned to block size of f2fs. */ | |
1380 | if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1)) | |
1381 | return -EINVAL; | |
1382 | ||
b9d777b8 JK |
1383 | ret = f2fs_convert_inline_inode(inode); |
1384 | if (ret) | |
1385 | return ret; | |
97a7b2c2 | 1386 | |
b4ace337 CY |
1387 | /* write out all dirty pages from offset */ |
1388 | ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); | |
1389 | if (ret) | |
6f8d4455 | 1390 | return ret; |
b4ace337 | 1391 | |
6f8d4455 | 1392 | ret = f2fs_do_collapse(inode, offset, len); |
b4ace337 | 1393 | if (ret) |
6f8d4455 | 1394 | return ret; |
b4ace337 | 1395 | |
6e2c64ad | 1396 | /* write out all moved pages, if possible */ |
edc6d01b | 1397 | filemap_invalidate_lock(inode->i_mapping); |
6e2c64ad JK |
1398 | filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); |
1399 | truncate_pagecache(inode, offset); | |
1400 | ||
b4ace337 | 1401 | new_size = i_size_read(inode) - len; |
c42d28ce | 1402 | ret = f2fs_truncate_blocks(inode, new_size, true); |
edc6d01b | 1403 | filemap_invalidate_unlock(inode->i_mapping); |
b4ace337 | 1404 | if (!ret) |
fc9581c8 | 1405 | f2fs_i_size_write(inode, new_size); |
b4ace337 CY |
1406 | return ret; |
1407 | } | |
1408 | ||
6e961949 CY |
1409 | static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start, |
1410 | pgoff_t end) | |
1411 | { | |
1412 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
1413 | pgoff_t index = start; | |
1414 | unsigned int ofs_in_node = dn->ofs_in_node; | |
1415 | blkcnt_t count = 0; | |
1416 | int ret; | |
1417 | ||
1418 | for (; index < end; index++, dn->ofs_in_node++) { | |
a2ced1ce | 1419 | if (f2fs_data_blkaddr(dn) == NULL_ADDR) |
6e961949 CY |
1420 | count++; |
1421 | } | |
1422 | ||
1423 | dn->ofs_in_node = ofs_in_node; | |
4d57b86d | 1424 | ret = f2fs_reserve_new_blocks(dn, count); |
6e961949 CY |
1425 | if (ret) |
1426 | return ret; | |
1427 | ||
1428 | dn->ofs_in_node = ofs_in_node; | |
1429 | for (index = start; index < end; index++, dn->ofs_in_node++) { | |
a2ced1ce | 1430 | dn->data_blkaddr = f2fs_data_blkaddr(dn); |
6e961949 | 1431 | /* |
4d57b86d | 1432 | * f2fs_reserve_new_blocks will not guarantee entire block |
6e961949 CY |
1433 | * allocation. |
1434 | */ | |
1435 | if (dn->data_blkaddr == NULL_ADDR) { | |
1436 | ret = -ENOSPC; | |
1437 | break; | |
1438 | } | |
1439 | if (dn->data_blkaddr != NEW_ADDR) { | |
4d57b86d | 1440 | f2fs_invalidate_blocks(sbi, dn->data_blkaddr); |
6e961949 | 1441 | dn->data_blkaddr = NEW_ADDR; |
4d57b86d | 1442 | f2fs_set_data_blkaddr(dn); |
6e961949 CY |
1443 | } |
1444 | } | |
1445 | ||
1446 | f2fs_update_extent_cache_range(dn, start, 0, index - start); | |
1447 | ||
1448 | return ret; | |
1449 | } | |
1450 | ||
75cd4e09 CY |
1451 | static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len, |
1452 | int mode) | |
1453 | { | |
1454 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1455 | struct address_space *mapping = inode->i_mapping; | |
1456 | pgoff_t index, pg_start, pg_end; | |
1457 | loff_t new_size = i_size_read(inode); | |
1458 | loff_t off_start, off_end; | |
1459 | int ret = 0; | |
1460 | ||
75cd4e09 CY |
1461 | ret = inode_newsize_ok(inode, (len + offset)); |
1462 | if (ret) | |
1463 | return ret; | |
1464 | ||
b9d777b8 JK |
1465 | ret = f2fs_convert_inline_inode(inode); |
1466 | if (ret) | |
1467 | return ret; | |
75cd4e09 CY |
1468 | |
1469 | ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1); | |
1470 | if (ret) | |
6f8d4455 | 1471 | return ret; |
75cd4e09 | 1472 | |
09cbfeaf KS |
1473 | pg_start = ((unsigned long long) offset) >> PAGE_SHIFT; |
1474 | pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT; | |
75cd4e09 | 1475 | |
09cbfeaf KS |
1476 | off_start = offset & (PAGE_SIZE - 1); |
1477 | off_end = (offset + len) & (PAGE_SIZE - 1); | |
75cd4e09 CY |
1478 | |
1479 | if (pg_start == pg_end) { | |
6394328a CY |
1480 | ret = fill_zero(inode, pg_start, off_start, |
1481 | off_end - off_start); | |
1482 | if (ret) | |
6f8d4455 | 1483 | return ret; |
6394328a | 1484 | |
75cd4e09 CY |
1485 | new_size = max_t(loff_t, new_size, offset + len); |
1486 | } else { | |
1487 | if (off_start) { | |
6394328a | 1488 | ret = fill_zero(inode, pg_start++, off_start, |
09cbfeaf | 1489 | PAGE_SIZE - off_start); |
6394328a | 1490 | if (ret) |
6f8d4455 | 1491 | return ret; |
6394328a | 1492 | |
75cd4e09 | 1493 | new_size = max_t(loff_t, new_size, |
09cbfeaf | 1494 | (loff_t)pg_start << PAGE_SHIFT); |
75cd4e09 CY |
1495 | } |
1496 | ||
6e961949 | 1497 | for (index = pg_start; index < pg_end;) { |
75cd4e09 | 1498 | struct dnode_of_data dn; |
6e961949 CY |
1499 | unsigned int end_offset; |
1500 | pgoff_t end; | |
75cd4e09 | 1501 | |
c7079853 | 1502 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1503 | filemap_invalidate_lock(mapping); |
c7079853 CY |
1504 | |
1505 | truncate_pagecache_range(inode, | |
1506 | (loff_t)index << PAGE_SHIFT, | |
1507 | ((loff_t)pg_end << PAGE_SHIFT) - 1); | |
1508 | ||
75cd4e09 CY |
1509 | f2fs_lock_op(sbi); |
1510 | ||
6e961949 | 1511 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1512 | ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE); |
75cd4e09 CY |
1513 | if (ret) { |
1514 | f2fs_unlock_op(sbi); | |
edc6d01b | 1515 | filemap_invalidate_unlock(mapping); |
c7079853 | 1516 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
75cd4e09 CY |
1517 | goto out; |
1518 | } | |
1519 | ||
6e961949 CY |
1520 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
1521 | end = min(pg_end, end_offset - dn.ofs_in_node + index); | |
1522 | ||
1523 | ret = f2fs_do_zero_range(&dn, index, end); | |
75cd4e09 | 1524 | f2fs_put_dnode(&dn); |
c7079853 | 1525 | |
75cd4e09 | 1526 | f2fs_unlock_op(sbi); |
edc6d01b | 1527 | filemap_invalidate_unlock(mapping); |
c7079853 | 1528 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
9434fcde CY |
1529 | |
1530 | f2fs_balance_fs(sbi, dn.node_changed); | |
1531 | ||
6e961949 CY |
1532 | if (ret) |
1533 | goto out; | |
75cd4e09 | 1534 | |
6e961949 | 1535 | index = end; |
75cd4e09 | 1536 | new_size = max_t(loff_t, new_size, |
6e961949 | 1537 | (loff_t)index << PAGE_SHIFT); |
75cd4e09 CY |
1538 | } |
1539 | ||
1540 | if (off_end) { | |
6394328a CY |
1541 | ret = fill_zero(inode, pg_end, 0, off_end); |
1542 | if (ret) | |
1543 | goto out; | |
1544 | ||
75cd4e09 CY |
1545 | new_size = max_t(loff_t, new_size, offset + len); |
1546 | } | |
1547 | } | |
1548 | ||
1549 | out: | |
17cd07ae CY |
1550 | if (new_size > i_size_read(inode)) { |
1551 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1552 | file_set_keep_isize(inode); | |
1553 | else | |
1554 | f2fs_i_size_write(inode, new_size); | |
1555 | } | |
75cd4e09 CY |
1556 | return ret; |
1557 | } | |
1558 | ||
f62185d0 CY |
1559 | static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len) |
1560 | { | |
1561 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
edc6d01b | 1562 | struct address_space *mapping = inode->i_mapping; |
0a2aa8fb | 1563 | pgoff_t nr, pg_start, pg_end, delta, idx; |
f62185d0 | 1564 | loff_t new_size; |
6e2c64ad | 1565 | int ret = 0; |
f62185d0 | 1566 | |
f62185d0 | 1567 | new_size = i_size_read(inode) + len; |
46e82fb1 KM |
1568 | ret = inode_newsize_ok(inode, new_size); |
1569 | if (ret) | |
1570 | return ret; | |
f62185d0 CY |
1571 | |
1572 | if (offset >= i_size_read(inode)) | |
1573 | return -EINVAL; | |
1574 | ||
1575 | /* insert range should be aligned to block size of f2fs. */ | |
1576 | if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1)) | |
1577 | return -EINVAL; | |
1578 | ||
b9d777b8 JK |
1579 | ret = f2fs_convert_inline_inode(inode); |
1580 | if (ret) | |
1581 | return ret; | |
97a7b2c2 | 1582 | |
2c4db1a6 | 1583 | f2fs_balance_fs(sbi, true); |
2a340760 | 1584 | |
edc6d01b | 1585 | filemap_invalidate_lock(mapping); |
c42d28ce | 1586 | ret = f2fs_truncate_blocks(inode, i_size_read(inode), true); |
edc6d01b | 1587 | filemap_invalidate_unlock(mapping); |
f62185d0 | 1588 | if (ret) |
6f8d4455 | 1589 | return ret; |
f62185d0 CY |
1590 | |
1591 | /* write out all dirty pages from offset */ | |
edc6d01b | 1592 | ret = filemap_write_and_wait_range(mapping, offset, LLONG_MAX); |
f62185d0 | 1593 | if (ret) |
6f8d4455 | 1594 | return ret; |
f62185d0 | 1595 | |
09cbfeaf KS |
1596 | pg_start = offset >> PAGE_SHIFT; |
1597 | pg_end = (offset + len) >> PAGE_SHIFT; | |
f62185d0 | 1598 | delta = pg_end - pg_start; |
f91108b8 | 1599 | idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); |
0a2aa8fb | 1600 | |
6f8d4455 JK |
1601 | /* avoid gc operation during block exchange */ |
1602 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); | |
edc6d01b | 1603 | filemap_invalidate_lock(mapping); |
6f8d4455 JK |
1604 | truncate_pagecache(inode, offset); |
1605 | ||
0a2aa8fb JK |
1606 | while (!ret && idx > pg_start) { |
1607 | nr = idx - pg_start; | |
1608 | if (nr > delta) | |
1609 | nr = delta; | |
1610 | idx -= nr; | |
f62185d0 | 1611 | |
f62185d0 | 1612 | f2fs_lock_op(sbi); |
5f281fab JK |
1613 | f2fs_drop_extent_tree(inode); |
1614 | ||
0a2aa8fb JK |
1615 | ret = __exchange_data_block(inode, inode, idx, |
1616 | idx + delta, nr, false); | |
f62185d0 CY |
1617 | f2fs_unlock_op(sbi); |
1618 | } | |
edc6d01b | 1619 | filemap_invalidate_unlock(mapping); |
6f8d4455 | 1620 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
f62185d0 | 1621 | |
6e2c64ad | 1622 | /* write out all moved pages, if possible */ |
edc6d01b JK |
1623 | filemap_invalidate_lock(mapping); |
1624 | filemap_write_and_wait_range(mapping, offset, LLONG_MAX); | |
6e2c64ad | 1625 | truncate_pagecache(inode, offset); |
edc6d01b | 1626 | filemap_invalidate_unlock(mapping); |
6e2c64ad JK |
1627 | |
1628 | if (!ret) | |
fc9581c8 | 1629 | f2fs_i_size_write(inode, new_size); |
f62185d0 CY |
1630 | return ret; |
1631 | } | |
1632 | ||
fbfa2cc5 JK |
1633 | static int expand_inode_data(struct inode *inode, loff_t offset, |
1634 | loff_t len, int mode) | |
1635 | { | |
4081363f | 1636 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
d5097be5 | 1637 | struct f2fs_map_blocks map = { .m_next_pgofs = NULL, |
f9d6d059 CY |
1638 | .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE, |
1639 | .m_may_create = true }; | |
88f2cfc5 | 1640 | pgoff_t pg_start, pg_end; |
fbfa2cc5 | 1641 | loff_t new_size = i_size_read(inode); |
e12dd7bd | 1642 | loff_t off_end; |
88f2cfc5 | 1643 | block_t expanded = 0; |
a7de6086 | 1644 | int err; |
fbfa2cc5 | 1645 | |
a7de6086 JK |
1646 | err = inode_newsize_ok(inode, (len + offset)); |
1647 | if (err) | |
1648 | return err; | |
fbfa2cc5 | 1649 | |
a7de6086 JK |
1650 | err = f2fs_convert_inline_inode(inode); |
1651 | if (err) | |
1652 | return err; | |
9e09fc85 | 1653 | |
2c4db1a6 | 1654 | f2fs_balance_fs(sbi, true); |
2a340760 | 1655 | |
88f2cfc5 | 1656 | pg_start = ((unsigned long long)offset) >> PAGE_SHIFT; |
e12dd7bd | 1657 | pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT; |
09cbfeaf | 1658 | off_end = (offset + len) & (PAGE_SIZE - 1); |
fbfa2cc5 | 1659 | |
88f2cfc5 CY |
1660 | map.m_lblk = pg_start; |
1661 | map.m_len = pg_end - pg_start; | |
e12dd7bd JK |
1662 | if (off_end) |
1663 | map.m_len++; | |
ead43275 | 1664 | |
f5a53edc JK |
1665 | if (!map.m_len) |
1666 | return 0; | |
1667 | ||
1668 | if (f2fs_is_pinned_file(inode)) { | |
e1175f02 CY |
1669 | block_t sec_blks = BLKS_PER_SEC(sbi); |
1670 | block_t sec_len = roundup(map.m_len, sec_blks); | |
f5a53edc | 1671 | |
e1175f02 | 1672 | map.m_len = sec_blks; |
f5a53edc JK |
1673 | next_alloc: |
1674 | if (has_not_enough_free_secs(sbi, 0, | |
1675 | GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) { | |
fb24fea7 | 1676 | down_write(&sbi->gc_lock); |
7dede886 | 1677 | err = f2fs_gc(sbi, true, false, false, NULL_SEGNO); |
f5a53edc JK |
1678 | if (err && err != -ENODATA && err != -EAGAIN) |
1679 | goto out_err; | |
1680 | } | |
1681 | ||
1682 | down_write(&sbi->pin_sem); | |
fd612648 DJ |
1683 | |
1684 | f2fs_lock_op(sbi); | |
509f1010 | 1685 | f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false); |
fd612648 DJ |
1686 | f2fs_unlock_op(sbi); |
1687 | ||
d0b9e42a | 1688 | map.m_seg_type = CURSEG_COLD_DATA_PINNED; |
f5a53edc | 1689 | err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO); |
d0b9e42a | 1690 | |
f5a53edc | 1691 | up_write(&sbi->pin_sem); |
cad3836f | 1692 | |
88f2cfc5 | 1693 | expanded += map.m_len; |
e1175f02 | 1694 | sec_len -= map.m_len; |
f5a53edc | 1695 | map.m_lblk += map.m_len; |
e1175f02 | 1696 | if (!err && sec_len) |
f5a53edc JK |
1697 | goto next_alloc; |
1698 | ||
88f2cfc5 | 1699 | map.m_len = expanded; |
f5a53edc JK |
1700 | } else { |
1701 | err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO); | |
88f2cfc5 | 1702 | expanded = map.m_len; |
f5a53edc JK |
1703 | } |
1704 | out_err: | |
a7de6086 | 1705 | if (err) { |
e12dd7bd | 1706 | pgoff_t last_off; |
fbfa2cc5 | 1707 | |
88f2cfc5 | 1708 | if (!expanded) |
a7de6086 | 1709 | return err; |
98397ff3 | 1710 | |
88f2cfc5 | 1711 | last_off = pg_start + expanded - 1; |
e12dd7bd JK |
1712 | |
1713 | /* update new size to the failed position */ | |
1061fd48 | 1714 | new_size = (last_off == pg_end) ? offset + len : |
e12dd7bd JK |
1715 | (loff_t)(last_off + 1) << PAGE_SHIFT; |
1716 | } else { | |
1717 | new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end; | |
fbfa2cc5 JK |
1718 | } |
1719 | ||
e8ed90a6 CY |
1720 | if (new_size > i_size_read(inode)) { |
1721 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1722 | file_set_keep_isize(inode); | |
1723 | else | |
1724 | f2fs_i_size_write(inode, new_size); | |
1725 | } | |
fbfa2cc5 | 1726 | |
a7de6086 | 1727 | return err; |
fbfa2cc5 JK |
1728 | } |
1729 | ||
1730 | static long f2fs_fallocate(struct file *file, int mode, | |
1731 | loff_t offset, loff_t len) | |
1732 | { | |
6131ffaa | 1733 | struct inode *inode = file_inode(file); |
587c0a42 | 1734 | long ret = 0; |
fbfa2cc5 | 1735 | |
1f227a3e JK |
1736 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
1737 | return -EIO; | |
00e09c0b CY |
1738 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode))) |
1739 | return -ENOSPC; | |
4c8ff709 CY |
1740 | if (!f2fs_is_compress_backend_ready(inode)) |
1741 | return -EOPNOTSUPP; | |
1f227a3e | 1742 | |
c998012b CY |
1743 | /* f2fs only support ->fallocate for regular file */ |
1744 | if (!S_ISREG(inode->i_mode)) | |
1745 | return -EINVAL; | |
1746 | ||
62230e0d | 1747 | if (IS_ENCRYPTED(inode) && |
f62185d0 | 1748 | (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE))) |
fcc85a4d JK |
1749 | return -EOPNOTSUPP; |
1750 | ||
4c8ff709 CY |
1751 | if (f2fs_compressed_file(inode) && |
1752 | (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE | | |
1753 | FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE))) | |
1754 | return -EOPNOTSUPP; | |
1755 | ||
b4ace337 | 1756 | if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | |
f62185d0 CY |
1757 | FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | |
1758 | FALLOC_FL_INSERT_RANGE)) | |
fbfa2cc5 JK |
1759 | return -EOPNOTSUPP; |
1760 | ||
5955102c | 1761 | inode_lock(inode); |
3375f696 | 1762 | |
587c0a42 TY |
1763 | if (mode & FALLOC_FL_PUNCH_HOLE) { |
1764 | if (offset >= inode->i_size) | |
1765 | goto out; | |
1766 | ||
a66c7b2f | 1767 | ret = punch_hole(inode, offset, len); |
b4ace337 CY |
1768 | } else if (mode & FALLOC_FL_COLLAPSE_RANGE) { |
1769 | ret = f2fs_collapse_range(inode, offset, len); | |
75cd4e09 CY |
1770 | } else if (mode & FALLOC_FL_ZERO_RANGE) { |
1771 | ret = f2fs_zero_range(inode, offset, len, mode); | |
f62185d0 CY |
1772 | } else if (mode & FALLOC_FL_INSERT_RANGE) { |
1773 | ret = f2fs_insert_range(inode, offset, len); | |
b4ace337 | 1774 | } else { |
fbfa2cc5 | 1775 | ret = expand_inode_data(inode, offset, len, mode); |
b4ace337 | 1776 | } |
fbfa2cc5 | 1777 | |
3af60a49 | 1778 | if (!ret) { |
078cd827 | 1779 | inode->i_mtime = inode->i_ctime = current_time(inode); |
7c45729a | 1780 | f2fs_mark_inode_dirty_sync(inode, false); |
d0239e1b | 1781 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
3af60a49 | 1782 | } |
3375f696 | 1783 | |
587c0a42 | 1784 | out: |
5955102c | 1785 | inode_unlock(inode); |
3375f696 | 1786 | |
c01e2853 | 1787 | trace_f2fs_fallocate(inode, mode, offset, len, ret); |
fbfa2cc5 JK |
1788 | return ret; |
1789 | } | |
1790 | ||
1e84371f JK |
1791 | static int f2fs_release_file(struct inode *inode, struct file *filp) |
1792 | { | |
de5307e4 JK |
1793 | /* |
1794 | * f2fs_relase_file is called at every close calls. So we should | |
1795 | * not drop any inmemory pages by close called by other process. | |
1796 | */ | |
1797 | if (!(filp->f_mode & FMODE_WRITE) || | |
1798 | atomic_read(&inode->i_writecount) != 1) | |
1799 | return 0; | |
1800 | ||
1e84371f JK |
1801 | /* some remained atomic pages should discarded */ |
1802 | if (f2fs_is_atomic_file(inode)) | |
4d57b86d | 1803 | f2fs_drop_inmem_pages(inode); |
1e84371f | 1804 | if (f2fs_is_volatile_file(inode)) { |
91942321 | 1805 | set_inode_flag(inode, FI_DROP_CACHE); |
1e84371f | 1806 | filemap_fdatawrite(inode->i_mapping); |
91942321 | 1807 | clear_inode_flag(inode, FI_DROP_CACHE); |
dfa74280 CY |
1808 | clear_inode_flag(inode, FI_VOLATILE_FILE); |
1809 | stat_dec_volatile_write(inode); | |
1e84371f JK |
1810 | } |
1811 | return 0; | |
1812 | } | |
1813 | ||
7a10f017 | 1814 | static int f2fs_file_flush(struct file *file, fl_owner_t id) |
fbfa2cc5 | 1815 | { |
7a10f017 JK |
1816 | struct inode *inode = file_inode(file); |
1817 | ||
1818 | /* | |
1819 | * If the process doing a transaction is crashed, we should do | |
1820 | * roll-back. Otherwise, other reader/write can see corrupted database | |
1821 | * until all the writers close its file. Since this should be done | |
1822 | * before dropping file lock, it needs to do in ->flush. | |
1823 | */ | |
1824 | if (f2fs_is_atomic_file(inode) && | |
1825 | F2FS_I(inode)->inmem_task == current) | |
4d57b86d | 1826 | f2fs_drop_inmem_pages(inode); |
7a10f017 | 1827 | return 0; |
fbfa2cc5 JK |
1828 | } |
1829 | ||
36098557 | 1830 | static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask) |
2c1d0305 CY |
1831 | { |
1832 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
99eabb91 JK |
1833 | u32 masked_flags = fi->i_flags & mask; |
1834 | ||
a7531039 JK |
1835 | /* mask can be shrunk by flags_valid selector */ |
1836 | iflags &= mask; | |
2c1d0305 CY |
1837 | |
1838 | /* Is it quota file? Do not allow user to mess with it */ | |
1839 | if (IS_NOQUOTA(inode)) | |
1840 | return -EPERM; | |
1841 | ||
99eabb91 | 1842 | if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) { |
2c2eb7a3 DR |
1843 | if (!f2fs_sb_has_casefold(F2FS_I_SB(inode))) |
1844 | return -EOPNOTSUPP; | |
1845 | if (!f2fs_empty_dir(inode)) | |
1846 | return -ENOTEMPTY; | |
1847 | } | |
1848 | ||
4c8ff709 CY |
1849 | if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) { |
1850 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
1851 | return -EOPNOTSUPP; | |
1852 | if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL)) | |
1853 | return -EINVAL; | |
1854 | } | |
1855 | ||
99eabb91 | 1856 | if ((iflags ^ masked_flags) & F2FS_COMPR_FL) { |
aa576970 | 1857 | if (masked_flags & F2FS_COMPR_FL) { |
78134d03 | 1858 | if (!f2fs_disable_compressed_file(inode)) |
2536ac68 CY |
1859 | return -EINVAL; |
1860 | } | |
4c8ff709 CY |
1861 | if (iflags & F2FS_NOCOMP_FL) |
1862 | return -EINVAL; | |
1863 | if (iflags & F2FS_COMPR_FL) { | |
4c8ff709 CY |
1864 | if (!f2fs_may_compress(inode)) |
1865 | return -EINVAL; | |
519a5a2f CY |
1866 | if (S_ISREG(inode->i_mode) && inode->i_size) |
1867 | return -EINVAL; | |
4c8ff709 CY |
1868 | |
1869 | set_compress_context(inode); | |
1870 | } | |
1871 | } | |
99eabb91 JK |
1872 | if ((iflags ^ masked_flags) & F2FS_NOCOMP_FL) { |
1873 | if (masked_flags & F2FS_COMPR_FL) | |
4c8ff709 CY |
1874 | return -EINVAL; |
1875 | } | |
1876 | ||
d5e5efa2 | 1877 | fi->i_flags = iflags | (fi->i_flags & ~mask); |
4c8ff709 CY |
1878 | f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) && |
1879 | (fi->i_flags & F2FS_NOCOMP_FL)); | |
2c1d0305 | 1880 | |
59c84408 | 1881 | if (fi->i_flags & F2FS_PROJINHERIT_FL) |
2c1d0305 CY |
1882 | set_inode_flag(inode, FI_PROJ_INHERIT); |
1883 | else | |
1884 | clear_inode_flag(inode, FI_PROJ_INHERIT); | |
1885 | ||
1886 | inode->i_ctime = current_time(inode); | |
1887 | f2fs_set_inode_flags(inode); | |
b32e0190 | 1888 | f2fs_mark_inode_dirty_sync(inode, true); |
2c1d0305 CY |
1889 | return 0; |
1890 | } | |
1891 | ||
9b1bb01c | 1892 | /* FS_IOC_[GS]ETFLAGS and FS_IOC_FS[GS]ETXATTR support */ |
36098557 EB |
1893 | |
1894 | /* | |
1895 | * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry | |
1896 | * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to | |
1897 | * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add | |
1898 | * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL. | |
9b1bb01c MS |
1899 | * |
1900 | * Translating flags to fsx_flags value used by FS_IOC_FSGETXATTR and | |
1901 | * FS_IOC_FSSETXATTR is done by the VFS. | |
36098557 EB |
1902 | */ |
1903 | ||
1904 | static const struct { | |
1905 | u32 iflag; | |
1906 | u32 fsflag; | |
1907 | } f2fs_fsflags_map[] = { | |
4c8ff709 | 1908 | { F2FS_COMPR_FL, FS_COMPR_FL }, |
36098557 EB |
1909 | { F2FS_SYNC_FL, FS_SYNC_FL }, |
1910 | { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL }, | |
1911 | { F2FS_APPEND_FL, FS_APPEND_FL }, | |
1912 | { F2FS_NODUMP_FL, FS_NODUMP_FL }, | |
1913 | { F2FS_NOATIME_FL, FS_NOATIME_FL }, | |
4c8ff709 | 1914 | { F2FS_NOCOMP_FL, FS_NOCOMP_FL }, |
36098557 EB |
1915 | { F2FS_INDEX_FL, FS_INDEX_FL }, |
1916 | { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL }, | |
1917 | { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL }, | |
2c2eb7a3 | 1918 | { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL }, |
36098557 EB |
1919 | }; |
1920 | ||
1921 | #define F2FS_GETTABLE_FS_FL ( \ | |
4c8ff709 | 1922 | FS_COMPR_FL | \ |
36098557 EB |
1923 | FS_SYNC_FL | \ |
1924 | FS_IMMUTABLE_FL | \ | |
1925 | FS_APPEND_FL | \ | |
1926 | FS_NODUMP_FL | \ | |
1927 | FS_NOATIME_FL | \ | |
4c8ff709 | 1928 | FS_NOCOMP_FL | \ |
36098557 EB |
1929 | FS_INDEX_FL | \ |
1930 | FS_DIRSYNC_FL | \ | |
1931 | FS_PROJINHERIT_FL | \ | |
1932 | FS_ENCRYPT_FL | \ | |
1933 | FS_INLINE_DATA_FL | \ | |
95ae251f | 1934 | FS_NOCOW_FL | \ |
fbc246a1 | 1935 | FS_VERITY_FL | \ |
2c2eb7a3 | 1936 | FS_CASEFOLD_FL) |
36098557 EB |
1937 | |
1938 | #define F2FS_SETTABLE_FS_FL ( \ | |
4c8ff709 | 1939 | FS_COMPR_FL | \ |
36098557 EB |
1940 | FS_SYNC_FL | \ |
1941 | FS_IMMUTABLE_FL | \ | |
1942 | FS_APPEND_FL | \ | |
1943 | FS_NODUMP_FL | \ | |
1944 | FS_NOATIME_FL | \ | |
4c8ff709 | 1945 | FS_NOCOMP_FL | \ |
36098557 | 1946 | FS_DIRSYNC_FL | \ |
2c2eb7a3 DR |
1947 | FS_PROJINHERIT_FL | \ |
1948 | FS_CASEFOLD_FL) | |
36098557 EB |
1949 | |
1950 | /* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */ | |
1951 | static inline u32 f2fs_iflags_to_fsflags(u32 iflags) | |
1952 | { | |
1953 | u32 fsflags = 0; | |
1954 | int i; | |
1955 | ||
1956 | for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++) | |
1957 | if (iflags & f2fs_fsflags_map[i].iflag) | |
1958 | fsflags |= f2fs_fsflags_map[i].fsflag; | |
1959 | ||
1960 | return fsflags; | |
1961 | } | |
1962 | ||
1963 | /* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */ | |
1964 | static inline u32 f2fs_fsflags_to_iflags(u32 fsflags) | |
1965 | { | |
1966 | u32 iflags = 0; | |
1967 | int i; | |
1968 | ||
1969 | for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++) | |
1970 | if (fsflags & f2fs_fsflags_map[i].fsflag) | |
1971 | iflags |= f2fs_fsflags_map[i].iflag; | |
1972 | ||
1973 | return iflags; | |
1974 | } | |
1975 | ||
d49f3e89 CY |
1976 | static int f2fs_ioc_getversion(struct file *filp, unsigned long arg) |
1977 | { | |
1978 | struct inode *inode = file_inode(filp); | |
1979 | ||
1980 | return put_user(inode->i_generation, (int __user *)arg); | |
1981 | } | |
1982 | ||
88b88a66 JK |
1983 | static int f2fs_ioc_start_atomic_write(struct file *filp) |
1984 | { | |
1985 | struct inode *inode = file_inode(filp); | |
743b620c JK |
1986 | struct f2fs_inode_info *fi = F2FS_I(inode); |
1987 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
f4c9c743 | 1988 | int ret; |
88b88a66 | 1989 | |
21cb47be | 1990 | if (!inode_owner_or_capable(&init_user_ns, inode)) |
88b88a66 JK |
1991 | return -EACCES; |
1992 | ||
e811898c JK |
1993 | if (!S_ISREG(inode->i_mode)) |
1994 | return -EINVAL; | |
1995 | ||
038d0698 CY |
1996 | if (filp->f_flags & O_DIRECT) |
1997 | return -EINVAL; | |
1998 | ||
7fb17fe4 CY |
1999 | ret = mnt_want_write_file(filp); |
2000 | if (ret) | |
2001 | return ret; | |
2002 | ||
0fac558b CY |
2003 | inode_lock(inode); |
2004 | ||
4c8ff709 CY |
2005 | f2fs_disable_compressed_file(inode); |
2006 | ||
455e3a58 JK |
2007 | if (f2fs_is_atomic_file(inode)) { |
2008 | if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) | |
2009 | ret = -EINVAL; | |
7fb17fe4 | 2010 | goto out; |
455e3a58 | 2011 | } |
88b88a66 | 2012 | |
f4c9c743 CY |
2013 | ret = f2fs_convert_inline_inode(inode); |
2014 | if (ret) | |
7fb17fe4 | 2015 | goto out; |
88b88a66 | 2016 | |
6f8d4455 JK |
2017 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
2018 | ||
31867b23 JK |
2019 | /* |
2020 | * Should wait end_io to count F2FS_WB_CP_DATA correctly by | |
2021 | * f2fs_is_atomic_file. | |
2022 | */ | |
2023 | if (get_dirty_pages(inode)) | |
dcbb4c10 JP |
2024 | f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu, npages=%u", |
2025 | inode->i_ino, get_dirty_pages(inode)); | |
c27753d6 | 2026 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); |
6f8d4455 JK |
2027 | if (ret) { |
2028 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); | |
684ca7e5 | 2029 | goto out; |
6f8d4455 | 2030 | } |
31867b23 | 2031 | |
743b620c JK |
2032 | spin_lock(&sbi->inode_lock[ATOMIC_FILE]); |
2033 | if (list_empty(&fi->inmem_ilist)) | |
2034 | list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]); | |
677017d1 | 2035 | sbi->atomic_files++; |
743b620c JK |
2036 | spin_unlock(&sbi->inode_lock[ATOMIC_FILE]); |
2037 | ||
2038 | /* add inode in inmem_list first and set atomic_file */ | |
054afda9 | 2039 | set_inode_flag(inode, FI_ATOMIC_FILE); |
2ef79ecb | 2040 | clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST); |
6f8d4455 | 2041 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
684ca7e5 | 2042 | |
6f8d4455 | 2043 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
7a10f017 | 2044 | F2FS_I(inode)->inmem_task = current; |
26a28a0c | 2045 | stat_update_max_atomic_write(inode); |
684ca7e5 | 2046 | out: |
0fac558b | 2047 | inode_unlock(inode); |
7fb17fe4 | 2048 | mnt_drop_write_file(filp); |
c27753d6 | 2049 | return ret; |
88b88a66 JK |
2050 | } |
2051 | ||
2052 | static int f2fs_ioc_commit_atomic_write(struct file *filp) | |
2053 | { | |
2054 | struct inode *inode = file_inode(filp); | |
2055 | int ret; | |
2056 | ||
21cb47be | 2057 | if (!inode_owner_or_capable(&init_user_ns, inode)) |
88b88a66 JK |
2058 | return -EACCES; |
2059 | ||
2060 | ret = mnt_want_write_file(filp); | |
2061 | if (ret) | |
2062 | return ret; | |
2063 | ||
6f8d4455 | 2064 | f2fs_balance_fs(F2FS_I_SB(inode), true); |
0fac558b | 2065 | |
6f8d4455 | 2066 | inode_lock(inode); |
1dc0f899 | 2067 | |
b169c3c5 CY |
2068 | if (f2fs_is_volatile_file(inode)) { |
2069 | ret = -EINVAL; | |
7fb17fe4 | 2070 | goto err_out; |
b169c3c5 | 2071 | } |
7fb17fe4 | 2072 | |
6282adbf | 2073 | if (f2fs_is_atomic_file(inode)) { |
4d57b86d | 2074 | ret = f2fs_commit_inmem_pages(inode); |
5fe45743 | 2075 | if (ret) |
edb27dee | 2076 | goto err_out; |
5fe45743 | 2077 | |
26a28a0c | 2078 | ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true); |
743b620c JK |
2079 | if (!ret) |
2080 | f2fs_drop_inmem_pages(inode); | |
26a28a0c | 2081 | } else { |
774e1b78 | 2082 | ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false); |
6282adbf | 2083 | } |
edb27dee | 2084 | err_out: |
2ef79ecb CY |
2085 | if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) { |
2086 | clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST); | |
2087 | ret = -EINVAL; | |
2088 | } | |
0fac558b | 2089 | inode_unlock(inode); |
88b88a66 JK |
2090 | mnt_drop_write_file(filp); |
2091 | return ret; | |
2092 | } | |
2093 | ||
02a1335f JK |
2094 | static int f2fs_ioc_start_volatile_write(struct file *filp) |
2095 | { | |
2096 | struct inode *inode = file_inode(filp); | |
f4c9c743 | 2097 | int ret; |
02a1335f | 2098 | |
21cb47be | 2099 | if (!inode_owner_or_capable(&init_user_ns, inode)) |
02a1335f JK |
2100 | return -EACCES; |
2101 | ||
8ff0971f CY |
2102 | if (!S_ISREG(inode->i_mode)) |
2103 | return -EINVAL; | |
2104 | ||
7fb17fe4 CY |
2105 | ret = mnt_want_write_file(filp); |
2106 | if (ret) | |
2107 | return ret; | |
2108 | ||
0fac558b CY |
2109 | inode_lock(inode); |
2110 | ||
1e84371f | 2111 | if (f2fs_is_volatile_file(inode)) |
7fb17fe4 | 2112 | goto out; |
1e84371f | 2113 | |
f4c9c743 CY |
2114 | ret = f2fs_convert_inline_inode(inode); |
2115 | if (ret) | |
7fb17fe4 | 2116 | goto out; |
b3d208f9 | 2117 | |
648d50ba CY |
2118 | stat_inc_volatile_write(inode); |
2119 | stat_update_max_volatile_write(inode); | |
2120 | ||
91942321 | 2121 | set_inode_flag(inode, FI_VOLATILE_FILE); |
d0239e1b | 2122 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
7fb17fe4 | 2123 | out: |
0fac558b | 2124 | inode_unlock(inode); |
7fb17fe4 CY |
2125 | mnt_drop_write_file(filp); |
2126 | return ret; | |
02a1335f JK |
2127 | } |
2128 | ||
1e84371f JK |
2129 | static int f2fs_ioc_release_volatile_write(struct file *filp) |
2130 | { | |
2131 | struct inode *inode = file_inode(filp); | |
7fb17fe4 | 2132 | int ret; |
1e84371f | 2133 | |
21cb47be | 2134 | if (!inode_owner_or_capable(&init_user_ns, inode)) |
1e84371f JK |
2135 | return -EACCES; |
2136 | ||
7fb17fe4 CY |
2137 | ret = mnt_want_write_file(filp); |
2138 | if (ret) | |
2139 | return ret; | |
2140 | ||
0fac558b CY |
2141 | inode_lock(inode); |
2142 | ||
1e84371f | 2143 | if (!f2fs_is_volatile_file(inode)) |
7fb17fe4 | 2144 | goto out; |
1e84371f | 2145 | |
7fb17fe4 CY |
2146 | if (!f2fs_is_first_block_written(inode)) { |
2147 | ret = truncate_partial_data_page(inode, 0, true); | |
2148 | goto out; | |
2149 | } | |
3c6c2beb | 2150 | |
7fb17fe4 CY |
2151 | ret = punch_hole(inode, 0, F2FS_BLKSIZE); |
2152 | out: | |
0fac558b | 2153 | inode_unlock(inode); |
7fb17fe4 CY |
2154 | mnt_drop_write_file(filp); |
2155 | return ret; | |
1e84371f JK |
2156 | } |
2157 | ||
2158 | static int f2fs_ioc_abort_volatile_write(struct file *filp) | |
2159 | { | |
2160 | struct inode *inode = file_inode(filp); | |
2161 | int ret; | |
2162 | ||
21cb47be | 2163 | if (!inode_owner_or_capable(&init_user_ns, inode)) |
1e84371f JK |
2164 | return -EACCES; |
2165 | ||
2166 | ret = mnt_want_write_file(filp); | |
2167 | if (ret) | |
2168 | return ret; | |
2169 | ||
0fac558b CY |
2170 | inode_lock(inode); |
2171 | ||
26dc3d44 | 2172 | if (f2fs_is_atomic_file(inode)) |
4d57b86d | 2173 | f2fs_drop_inmem_pages(inode); |
732d5648 | 2174 | if (f2fs_is_volatile_file(inode)) { |
91942321 | 2175 | clear_inode_flag(inode, FI_VOLATILE_FILE); |
648d50ba | 2176 | stat_dec_volatile_write(inode); |
608514de | 2177 | ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true); |
732d5648 | 2178 | } |
de6a8ec9 | 2179 | |
455e3a58 JK |
2180 | clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST); |
2181 | ||
0fac558b CY |
2182 | inode_unlock(inode); |
2183 | ||
1e84371f | 2184 | mnt_drop_write_file(filp); |
d0239e1b | 2185 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
1e84371f JK |
2186 | return ret; |
2187 | } | |
2188 | ||
1abff93d JK |
2189 | static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg) |
2190 | { | |
2191 | struct inode *inode = file_inode(filp); | |
2192 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2193 | struct super_block *sb = sbi->sb; | |
2194 | __u32 in; | |
2a96d8ad | 2195 | int ret = 0; |
1abff93d JK |
2196 | |
2197 | if (!capable(CAP_SYS_ADMIN)) | |
2198 | return -EPERM; | |
2199 | ||
2200 | if (get_user(in, (__u32 __user *)arg)) | |
2201 | return -EFAULT; | |
2202 | ||
60b2b4ee ST |
2203 | if (in != F2FS_GOING_DOWN_FULLSYNC) { |
2204 | ret = mnt_want_write_file(filp); | |
8626441f CY |
2205 | if (ret) { |
2206 | if (ret == -EROFS) { | |
2207 | ret = 0; | |
2208 | f2fs_stop_checkpoint(sbi, false); | |
2209 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); | |
2210 | trace_f2fs_shutdown(sbi, in, ret); | |
2211 | } | |
60b2b4ee | 2212 | return ret; |
8626441f | 2213 | } |
60b2b4ee | 2214 | } |
7fb17fe4 | 2215 | |
1abff93d JK |
2216 | switch (in) { |
2217 | case F2FS_GOING_DOWN_FULLSYNC: | |
040f04bd CH |
2218 | ret = freeze_bdev(sb->s_bdev); |
2219 | if (ret) | |
d027c484 | 2220 | goto out; |
040f04bd CH |
2221 | f2fs_stop_checkpoint(sbi, false); |
2222 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); | |
2223 | thaw_bdev(sb->s_bdev); | |
1abff93d JK |
2224 | break; |
2225 | case F2FS_GOING_DOWN_METASYNC: | |
2226 | /* do checkpoint only */ | |
d027c484 CY |
2227 | ret = f2fs_sync_fs(sb, 1); |
2228 | if (ret) | |
2229 | goto out; | |
38f91ca8 | 2230 | f2fs_stop_checkpoint(sbi, false); |
83a3bfdb | 2231 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
1abff93d JK |
2232 | break; |
2233 | case F2FS_GOING_DOWN_NOSYNC: | |
38f91ca8 | 2234 | f2fs_stop_checkpoint(sbi, false); |
83a3bfdb | 2235 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
1abff93d | 2236 | break; |
c912a829 | 2237 | case F2FS_GOING_DOWN_METAFLUSH: |
4d57b86d | 2238 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO); |
38f91ca8 | 2239 | f2fs_stop_checkpoint(sbi, false); |
83a3bfdb | 2240 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
c912a829 | 2241 | break; |
0cd6d9b0 JK |
2242 | case F2FS_GOING_DOWN_NEED_FSCK: |
2243 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
db610a64 JK |
2244 | set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); |
2245 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
0cd6d9b0 JK |
2246 | /* do checkpoint only */ |
2247 | ret = f2fs_sync_fs(sb, 1); | |
db610a64 | 2248 | goto out; |
1abff93d | 2249 | default: |
7fb17fe4 CY |
2250 | ret = -EINVAL; |
2251 | goto out; | |
1abff93d | 2252 | } |
7950e9ac | 2253 | |
4d57b86d CY |
2254 | f2fs_stop_gc_thread(sbi); |
2255 | f2fs_stop_discard_thread(sbi); | |
7950e9ac | 2256 | |
4d57b86d | 2257 | f2fs_drop_discard_cmd(sbi); |
7950e9ac CY |
2258 | clear_opt(sbi, DISCARD); |
2259 | ||
d0239e1b | 2260 | f2fs_update_time(sbi, REQ_TIME); |
7fb17fe4 | 2261 | out: |
60b2b4ee ST |
2262 | if (in != F2FS_GOING_DOWN_FULLSYNC) |
2263 | mnt_drop_write_file(filp); | |
559e87c4 CY |
2264 | |
2265 | trace_f2fs_shutdown(sbi, in, ret); | |
2266 | ||
7fb17fe4 | 2267 | return ret; |
1abff93d JK |
2268 | } |
2269 | ||
52656e6c JK |
2270 | static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg) |
2271 | { | |
2272 | struct inode *inode = file_inode(filp); | |
2273 | struct super_block *sb = inode->i_sb; | |
2274 | struct request_queue *q = bdev_get_queue(sb->s_bdev); | |
2275 | struct fstrim_range range; | |
2276 | int ret; | |
4b2fecc8 | 2277 | |
52656e6c JK |
2278 | if (!capable(CAP_SYS_ADMIN)) |
2279 | return -EPERM; | |
4b2fecc8 | 2280 | |
7d20c8ab | 2281 | if (!f2fs_hw_support_discard(F2FS_SB(sb))) |
52656e6c | 2282 | return -EOPNOTSUPP; |
4b2fecc8 | 2283 | |
52656e6c JK |
2284 | if (copy_from_user(&range, (struct fstrim_range __user *)arg, |
2285 | sizeof(range))) | |
2286 | return -EFAULT; | |
4b2fecc8 | 2287 | |
7fb17fe4 CY |
2288 | ret = mnt_want_write_file(filp); |
2289 | if (ret) | |
2290 | return ret; | |
2291 | ||
52656e6c JK |
2292 | range.minlen = max((unsigned int)range.minlen, |
2293 | q->limits.discard_granularity); | |
2294 | ret = f2fs_trim_fs(F2FS_SB(sb), &range); | |
7fb17fe4 | 2295 | mnt_drop_write_file(filp); |
52656e6c JK |
2296 | if (ret < 0) |
2297 | return ret; | |
4b2fecc8 | 2298 | |
52656e6c JK |
2299 | if (copy_to_user((struct fstrim_range __user *)arg, &range, |
2300 | sizeof(range))) | |
2301 | return -EFAULT; | |
d0239e1b | 2302 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
52656e6c JK |
2303 | return 0; |
2304 | } | |
2305 | ||
f424f664 JK |
2306 | static bool uuid_is_nonzero(__u8 u[16]) |
2307 | { | |
2308 | int i; | |
2309 | ||
2310 | for (i = 0; i < 16; i++) | |
2311 | if (u[i]) | |
2312 | return true; | |
2313 | return false; | |
2314 | } | |
2315 | ||
2316 | static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg) | |
2317 | { | |
f424f664 JK |
2318 | struct inode *inode = file_inode(filp); |
2319 | ||
7beb01f7 | 2320 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode))) |
ead710b7 CY |
2321 | return -EOPNOTSUPP; |
2322 | ||
d0239e1b | 2323 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
7fb17fe4 | 2324 | |
db717d8e | 2325 | return fscrypt_ioctl_set_policy(filp, (const void __user *)arg); |
f424f664 JK |
2326 | } |
2327 | ||
2328 | static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg) | |
2329 | { | |
7beb01f7 | 2330 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) |
ead710b7 | 2331 | return -EOPNOTSUPP; |
db717d8e | 2332 | return fscrypt_ioctl_get_policy(filp, (void __user *)arg); |
f424f664 JK |
2333 | } |
2334 | ||
2335 | static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg) | |
2336 | { | |
2337 | struct inode *inode = file_inode(filp); | |
2338 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2339 | int err; | |
2340 | ||
7beb01f7 | 2341 | if (!f2fs_sb_has_encrypt(sbi)) |
f424f664 JK |
2342 | return -EOPNOTSUPP; |
2343 | ||
f424f664 JK |
2344 | err = mnt_want_write_file(filp); |
2345 | if (err) | |
2346 | return err; | |
2347 | ||
846ae671 | 2348 | down_write(&sbi->sb_lock); |
d0d3f1b3 CY |
2349 | |
2350 | if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt)) | |
2351 | goto got_it; | |
2352 | ||
f424f664 JK |
2353 | /* update superblock with uuid */ |
2354 | generate_random_uuid(sbi->raw_super->encrypt_pw_salt); | |
2355 | ||
c5bda1c8 | 2356 | err = f2fs_commit_super(sbi, false); |
f424f664 JK |
2357 | if (err) { |
2358 | /* undo new data */ | |
2359 | memset(sbi->raw_super->encrypt_pw_salt, 0, 16); | |
d0d3f1b3 | 2360 | goto out_err; |
f424f664 JK |
2361 | } |
2362 | got_it: | |
2363 | if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt, | |
2364 | 16)) | |
d0d3f1b3 CY |
2365 | err = -EFAULT; |
2366 | out_err: | |
846ae671 | 2367 | up_write(&sbi->sb_lock); |
d0d3f1b3 CY |
2368 | mnt_drop_write_file(filp); |
2369 | return err; | |
f424f664 JK |
2370 | } |
2371 | ||
8ce589c7 EB |
2372 | static int f2fs_ioc_get_encryption_policy_ex(struct file *filp, |
2373 | unsigned long arg) | |
2374 | { | |
2375 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2376 | return -EOPNOTSUPP; | |
2377 | ||
2378 | return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg); | |
2379 | } | |
2380 | ||
2381 | static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg) | |
2382 | { | |
2383 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2384 | return -EOPNOTSUPP; | |
2385 | ||
2386 | return fscrypt_ioctl_add_key(filp, (void __user *)arg); | |
2387 | } | |
2388 | ||
2389 | static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg) | |
2390 | { | |
2391 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2392 | return -EOPNOTSUPP; | |
2393 | ||
2394 | return fscrypt_ioctl_remove_key(filp, (void __user *)arg); | |
2395 | } | |
2396 | ||
2397 | static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp, | |
2398 | unsigned long arg) | |
2399 | { | |
2400 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2401 | return -EOPNOTSUPP; | |
2402 | ||
2403 | return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg); | |
2404 | } | |
2405 | ||
2406 | static int f2fs_ioc_get_encryption_key_status(struct file *filp, | |
2407 | unsigned long arg) | |
2408 | { | |
2409 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2410 | return -EOPNOTSUPP; | |
2411 | ||
2412 | return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); | |
2413 | } | |
2414 | ||
ee446e1a EB |
2415 | static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg) |
2416 | { | |
2417 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2418 | return -EOPNOTSUPP; | |
2419 | ||
2420 | return fscrypt_ioctl_get_nonce(filp, (void __user *)arg); | |
2421 | } | |
2422 | ||
c1c1b583 CY |
2423 | static int f2fs_ioc_gc(struct file *filp, unsigned long arg) |
2424 | { | |
2425 | struct inode *inode = file_inode(filp); | |
2426 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
d530d4d8 | 2427 | __u32 sync; |
7fb17fe4 | 2428 | int ret; |
c1c1b583 CY |
2429 | |
2430 | if (!capable(CAP_SYS_ADMIN)) | |
2431 | return -EPERM; | |
2432 | ||
d530d4d8 | 2433 | if (get_user(sync, (__u32 __user *)arg)) |
c1c1b583 CY |
2434 | return -EFAULT; |
2435 | ||
d530d4d8 CY |
2436 | if (f2fs_readonly(sbi->sb)) |
2437 | return -EROFS; | |
c1c1b583 | 2438 | |
7fb17fe4 CY |
2439 | ret = mnt_want_write_file(filp); |
2440 | if (ret) | |
2441 | return ret; | |
2442 | ||
d530d4d8 | 2443 | if (!sync) { |
fb24fea7 | 2444 | if (!down_write_trylock(&sbi->gc_lock)) { |
7fb17fe4 CY |
2445 | ret = -EBUSY; |
2446 | goto out; | |
2447 | } | |
d530d4d8 | 2448 | } else { |
fb24fea7 | 2449 | down_write(&sbi->gc_lock); |
c1c1b583 CY |
2450 | } |
2451 | ||
7dede886 | 2452 | ret = f2fs_gc(sbi, sync, true, false, NULL_SEGNO); |
7fb17fe4 CY |
2453 | out: |
2454 | mnt_drop_write_file(filp); | |
2455 | return ret; | |
c1c1b583 CY |
2456 | } |
2457 | ||
34178b1b | 2458 | static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range) |
34dc77ad | 2459 | { |
34178b1b | 2460 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp)); |
34dc77ad JK |
2461 | u64 end; |
2462 | int ret; | |
2463 | ||
2464 | if (!capable(CAP_SYS_ADMIN)) | |
2465 | return -EPERM; | |
34dc77ad JK |
2466 | if (f2fs_readonly(sbi->sb)) |
2467 | return -EROFS; | |
2468 | ||
34178b1b CY |
2469 | end = range->start + range->len; |
2470 | if (end < range->start || range->start < MAIN_BLKADDR(sbi) || | |
fbbf7799 | 2471 | end >= MAX_BLKADDR(sbi)) |
b82f6e34 | 2472 | return -EINVAL; |
b82f6e34 | 2473 | |
34dc77ad JK |
2474 | ret = mnt_want_write_file(filp); |
2475 | if (ret) | |
2476 | return ret; | |
2477 | ||
34dc77ad | 2478 | do_more: |
34178b1b | 2479 | if (!range->sync) { |
fb24fea7 | 2480 | if (!down_write_trylock(&sbi->gc_lock)) { |
34dc77ad JK |
2481 | ret = -EBUSY; |
2482 | goto out; | |
2483 | } | |
2484 | } else { | |
fb24fea7 | 2485 | down_write(&sbi->gc_lock); |
34dc77ad JK |
2486 | } |
2487 | ||
7dede886 CY |
2488 | ret = f2fs_gc(sbi, range->sync, true, false, |
2489 | GET_SEGNO(sbi, range->start)); | |
97767500 QZ |
2490 | if (ret) { |
2491 | if (ret == -EBUSY) | |
2492 | ret = -EAGAIN; | |
2493 | goto out; | |
2494 | } | |
34178b1b CY |
2495 | range->start += BLKS_PER_SEC(sbi); |
2496 | if (range->start <= end) | |
34dc77ad JK |
2497 | goto do_more; |
2498 | out: | |
2499 | mnt_drop_write_file(filp); | |
2500 | return ret; | |
2501 | } | |
2502 | ||
34178b1b CY |
2503 | static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg) |
2504 | { | |
2505 | struct f2fs_gc_range range; | |
2506 | ||
2507 | if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg, | |
2508 | sizeof(range))) | |
2509 | return -EFAULT; | |
2510 | return __f2fs_ioc_gc_range(filp, &range); | |
2511 | } | |
2512 | ||
059c0648 | 2513 | static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg) |
456b88e4 CY |
2514 | { |
2515 | struct inode *inode = file_inode(filp); | |
2516 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
7fb17fe4 | 2517 | int ret; |
456b88e4 CY |
2518 | |
2519 | if (!capable(CAP_SYS_ADMIN)) | |
2520 | return -EPERM; | |
2521 | ||
2522 | if (f2fs_readonly(sbi->sb)) | |
2523 | return -EROFS; | |
2524 | ||
4354994f | 2525 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
dcbb4c10 | 2526 | f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled."); |
4354994f DR |
2527 | return -EINVAL; |
2528 | } | |
2529 | ||
7fb17fe4 CY |
2530 | ret = mnt_want_write_file(filp); |
2531 | if (ret) | |
2532 | return ret; | |
2533 | ||
2534 | ret = f2fs_sync_fs(sbi->sb, 1); | |
2535 | ||
2536 | mnt_drop_write_file(filp); | |
2537 | return ret; | |
456b88e4 CY |
2538 | } |
2539 | ||
d323d005 CY |
2540 | static int f2fs_defragment_range(struct f2fs_sb_info *sbi, |
2541 | struct file *filp, | |
2542 | struct f2fs_defragment *range) | |
2543 | { | |
2544 | struct inode *inode = file_inode(filp); | |
f3d98e74 | 2545 | struct f2fs_map_blocks map = { .m_next_extent = NULL, |
5f029c04 | 2546 | .m_seg_type = NO_CHECK_TYPE, |
f4f0b677 | 2547 | .m_may_create = false }; |
1061fd48 | 2548 | struct extent_info ei = {0, 0, 0}; |
f3d98e74 | 2549 | pgoff_t pg_start, pg_end, next_pgofs; |
3519e3f9 | 2550 | unsigned int blk_per_seg = sbi->blocks_per_seg; |
d323d005 | 2551 | unsigned int total = 0, sec_num; |
d323d005 CY |
2552 | block_t blk_end = 0; |
2553 | bool fragmented = false; | |
2554 | int err; | |
2555 | ||
2556 | /* if in-place-update policy is enabled, don't waste time here */ | |
4d57b86d | 2557 | if (f2fs_should_update_inplace(inode, NULL)) |
d323d005 CY |
2558 | return -EINVAL; |
2559 | ||
09cbfeaf KS |
2560 | pg_start = range->start >> PAGE_SHIFT; |
2561 | pg_end = (range->start + range->len) >> PAGE_SHIFT; | |
d323d005 | 2562 | |
2c4db1a6 | 2563 | f2fs_balance_fs(sbi, true); |
d323d005 | 2564 | |
5955102c | 2565 | inode_lock(inode); |
d323d005 CY |
2566 | |
2567 | /* writeback all dirty pages in the range */ | |
2568 | err = filemap_write_and_wait_range(inode->i_mapping, range->start, | |
d8fe4f0e | 2569 | range->start + range->len - 1); |
d323d005 CY |
2570 | if (err) |
2571 | goto out; | |
2572 | ||
2573 | /* | |
2574 | * lookup mapping info in extent cache, skip defragmenting if physical | |
2575 | * block addresses are continuous. | |
2576 | */ | |
2577 | if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) { | |
2578 | if (ei.fofs + ei.len >= pg_end) | |
2579 | goto out; | |
2580 | } | |
2581 | ||
2582 | map.m_lblk = pg_start; | |
f3d98e74 | 2583 | map.m_next_pgofs = &next_pgofs; |
d323d005 CY |
2584 | |
2585 | /* | |
2586 | * lookup mapping info in dnode page cache, skip defragmenting if all | |
2587 | * physical block addresses are continuous even if there are hole(s) | |
2588 | * in logical blocks. | |
2589 | */ | |
2590 | while (map.m_lblk < pg_end) { | |
a1c1e9b7 | 2591 | map.m_len = pg_end - map.m_lblk; |
f2220c7f | 2592 | err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT); |
d323d005 CY |
2593 | if (err) |
2594 | goto out; | |
2595 | ||
2596 | if (!(map.m_flags & F2FS_MAP_FLAGS)) { | |
f3d98e74 | 2597 | map.m_lblk = next_pgofs; |
d323d005 CY |
2598 | continue; |
2599 | } | |
2600 | ||
25a912e5 | 2601 | if (blk_end && blk_end != map.m_pblk) |
d323d005 | 2602 | fragmented = true; |
25a912e5 CY |
2603 | |
2604 | /* record total count of block that we're going to move */ | |
2605 | total += map.m_len; | |
2606 | ||
d323d005 CY |
2607 | blk_end = map.m_pblk + map.m_len; |
2608 | ||
2609 | map.m_lblk += map.m_len; | |
d323d005 CY |
2610 | } |
2611 | ||
d3a1a0e1 CY |
2612 | if (!fragmented) { |
2613 | total = 0; | |
d323d005 | 2614 | goto out; |
d3a1a0e1 | 2615 | } |
d323d005 | 2616 | |
f91108b8 | 2617 | sec_num = DIV_ROUND_UP(total, BLKS_PER_SEC(sbi)); |
d323d005 CY |
2618 | |
2619 | /* | |
2620 | * make sure there are enough free section for LFS allocation, this can | |
2621 | * avoid defragment running in SSR mode when free section are allocated | |
2622 | * intensively | |
2623 | */ | |
7f3037a5 | 2624 | if (has_not_enough_free_secs(sbi, 0, sec_num)) { |
d323d005 CY |
2625 | err = -EAGAIN; |
2626 | goto out; | |
2627 | } | |
2628 | ||
25a912e5 CY |
2629 | map.m_lblk = pg_start; |
2630 | map.m_len = pg_end - pg_start; | |
2631 | total = 0; | |
2632 | ||
d323d005 CY |
2633 | while (map.m_lblk < pg_end) { |
2634 | pgoff_t idx; | |
2635 | int cnt = 0; | |
2636 | ||
2637 | do_map: | |
a1c1e9b7 | 2638 | map.m_len = pg_end - map.m_lblk; |
f2220c7f | 2639 | err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT); |
d323d005 CY |
2640 | if (err) |
2641 | goto clear_out; | |
2642 | ||
2643 | if (!(map.m_flags & F2FS_MAP_FLAGS)) { | |
f3d98e74 | 2644 | map.m_lblk = next_pgofs; |
d3a1a0e1 | 2645 | goto check; |
d323d005 CY |
2646 | } |
2647 | ||
91942321 | 2648 | set_inode_flag(inode, FI_DO_DEFRAG); |
d323d005 CY |
2649 | |
2650 | idx = map.m_lblk; | |
2651 | while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) { | |
2652 | struct page *page; | |
2653 | ||
4d57b86d | 2654 | page = f2fs_get_lock_data_page(inode, idx, true); |
d323d005 CY |
2655 | if (IS_ERR(page)) { |
2656 | err = PTR_ERR(page); | |
2657 | goto clear_out; | |
2658 | } | |
2659 | ||
2660 | set_page_dirty(page); | |
2661 | f2fs_put_page(page, 1); | |
2662 | ||
2663 | idx++; | |
2664 | cnt++; | |
2665 | total++; | |
2666 | } | |
2667 | ||
2668 | map.m_lblk = idx; | |
d3a1a0e1 CY |
2669 | check: |
2670 | if (map.m_lblk < pg_end && cnt < blk_per_seg) | |
d323d005 CY |
2671 | goto do_map; |
2672 | ||
91942321 | 2673 | clear_inode_flag(inode, FI_DO_DEFRAG); |
d323d005 CY |
2674 | |
2675 | err = filemap_fdatawrite(inode->i_mapping); | |
2676 | if (err) | |
2677 | goto out; | |
2678 | } | |
2679 | clear_out: | |
91942321 | 2680 | clear_inode_flag(inode, FI_DO_DEFRAG); |
d323d005 | 2681 | out: |
5955102c | 2682 | inode_unlock(inode); |
d323d005 | 2683 | if (!err) |
09cbfeaf | 2684 | range->len = (u64)total << PAGE_SHIFT; |
d323d005 CY |
2685 | return err; |
2686 | } | |
2687 | ||
2688 | static int f2fs_ioc_defragment(struct file *filp, unsigned long arg) | |
2689 | { | |
2690 | struct inode *inode = file_inode(filp); | |
2691 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2692 | struct f2fs_defragment range; | |
2693 | int err; | |
2694 | ||
2695 | if (!capable(CAP_SYS_ADMIN)) | |
2696 | return -EPERM; | |
2697 | ||
7eab0c0d | 2698 | if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode)) |
d323d005 CY |
2699 | return -EINVAL; |
2700 | ||
d7563861 KM |
2701 | if (f2fs_readonly(sbi->sb)) |
2702 | return -EROFS; | |
d323d005 CY |
2703 | |
2704 | if (copy_from_user(&range, (struct f2fs_defragment __user *)arg, | |
d7563861 KM |
2705 | sizeof(range))) |
2706 | return -EFAULT; | |
d323d005 CY |
2707 | |
2708 | /* verify alignment of offset & size */ | |
d7563861 KM |
2709 | if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1)) |
2710 | return -EINVAL; | |
d323d005 | 2711 | |
1941d7bc | 2712 | if (unlikely((range.start + range.len) >> PAGE_SHIFT > |
6d1451bf | 2713 | max_file_blocks(inode))) |
d7563861 KM |
2714 | return -EINVAL; |
2715 | ||
2716 | err = mnt_want_write_file(filp); | |
2717 | if (err) | |
2718 | return err; | |
1941d7bc | 2719 | |
d323d005 | 2720 | err = f2fs_defragment_range(sbi, filp, &range); |
d7563861 KM |
2721 | mnt_drop_write_file(filp); |
2722 | ||
d0239e1b | 2723 | f2fs_update_time(sbi, REQ_TIME); |
d323d005 | 2724 | if (err < 0) |
d7563861 | 2725 | return err; |
d323d005 CY |
2726 | |
2727 | if (copy_to_user((struct f2fs_defragment __user *)arg, &range, | |
2728 | sizeof(range))) | |
d7563861 KM |
2729 | return -EFAULT; |
2730 | ||
2731 | return 0; | |
d323d005 CY |
2732 | } |
2733 | ||
4dd6f977 JK |
2734 | static int f2fs_move_file_range(struct file *file_in, loff_t pos_in, |
2735 | struct file *file_out, loff_t pos_out, size_t len) | |
2736 | { | |
2737 | struct inode *src = file_inode(file_in); | |
2738 | struct inode *dst = file_inode(file_out); | |
2739 | struct f2fs_sb_info *sbi = F2FS_I_SB(src); | |
2740 | size_t olen = len, dst_max_i_size = 0; | |
2741 | size_t dst_osize; | |
2742 | int ret; | |
2743 | ||
2744 | if (file_in->f_path.mnt != file_out->f_path.mnt || | |
2745 | src->i_sb != dst->i_sb) | |
2746 | return -EXDEV; | |
2747 | ||
2748 | if (unlikely(f2fs_readonly(src->i_sb))) | |
2749 | return -EROFS; | |
2750 | ||
fe8494bf CY |
2751 | if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode)) |
2752 | return -EINVAL; | |
4dd6f977 | 2753 | |
62230e0d | 2754 | if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst)) |
4dd6f977 JK |
2755 | return -EOPNOTSUPP; |
2756 | ||
aad1383c DR |
2757 | if (pos_out < 0 || pos_in < 0) |
2758 | return -EINVAL; | |
2759 | ||
d95fd91c FL |
2760 | if (src == dst) { |
2761 | if (pos_in == pos_out) | |
2762 | return 0; | |
2763 | if (pos_out > pos_in && pos_out < pos_in + len) | |
2764 | return -EINVAL; | |
2765 | } | |
2766 | ||
4dd6f977 | 2767 | inode_lock(src); |
20a3d61d | 2768 | if (src != dst) { |
bb06664a CY |
2769 | ret = -EBUSY; |
2770 | if (!inode_trylock(dst)) | |
2771 | goto out; | |
20a3d61d | 2772 | } |
4dd6f977 JK |
2773 | |
2774 | ret = -EINVAL; | |
2775 | if (pos_in + len > src->i_size || pos_in + len < pos_in) | |
2776 | goto out_unlock; | |
2777 | if (len == 0) | |
2778 | olen = len = src->i_size - pos_in; | |
2779 | if (pos_in + len == src->i_size) | |
2780 | len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in; | |
2781 | if (len == 0) { | |
2782 | ret = 0; | |
2783 | goto out_unlock; | |
2784 | } | |
2785 | ||
2786 | dst_osize = dst->i_size; | |
2787 | if (pos_out + olen > dst->i_size) | |
2788 | dst_max_i_size = pos_out + olen; | |
2789 | ||
2790 | /* verify the end result is block aligned */ | |
2791 | if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) || | |
2792 | !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) || | |
2793 | !IS_ALIGNED(pos_out, F2FS_BLKSIZE)) | |
2794 | goto out_unlock; | |
2795 | ||
2796 | ret = f2fs_convert_inline_inode(src); | |
2797 | if (ret) | |
2798 | goto out_unlock; | |
2799 | ||
2800 | ret = f2fs_convert_inline_inode(dst); | |
2801 | if (ret) | |
2802 | goto out_unlock; | |
2803 | ||
2804 | /* write out all dirty pages from offset */ | |
2805 | ret = filemap_write_and_wait_range(src->i_mapping, | |
2806 | pos_in, pos_in + len); | |
2807 | if (ret) | |
2808 | goto out_unlock; | |
2809 | ||
2810 | ret = filemap_write_and_wait_range(dst->i_mapping, | |
2811 | pos_out, pos_out + len); | |
2812 | if (ret) | |
2813 | goto out_unlock; | |
2814 | ||
2815 | f2fs_balance_fs(sbi, true); | |
6f8d4455 JK |
2816 | |
2817 | down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]); | |
2818 | if (src != dst) { | |
2819 | ret = -EBUSY; | |
2820 | if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE])) | |
2821 | goto out_src; | |
2822 | } | |
2823 | ||
4dd6f977 | 2824 | f2fs_lock_op(sbi); |
61e4da11 FL |
2825 | ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS, |
2826 | pos_out >> F2FS_BLKSIZE_BITS, | |
2827 | len >> F2FS_BLKSIZE_BITS, false); | |
4dd6f977 JK |
2828 | |
2829 | if (!ret) { | |
2830 | if (dst_max_i_size) | |
2831 | f2fs_i_size_write(dst, dst_max_i_size); | |
2832 | else if (dst_osize != dst->i_size) | |
2833 | f2fs_i_size_write(dst, dst_osize); | |
2834 | } | |
2835 | f2fs_unlock_op(sbi); | |
6f8d4455 JK |
2836 | |
2837 | if (src != dst) | |
b2532c69 | 2838 | up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]); |
6f8d4455 JK |
2839 | out_src: |
2840 | up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]); | |
2841 | out_unlock: | |
2842 | if (src != dst) | |
4dd6f977 | 2843 | inode_unlock(dst); |
20a3d61d | 2844 | out: |
4dd6f977 JK |
2845 | inode_unlock(src); |
2846 | return ret; | |
2847 | } | |
2848 | ||
34178b1b CY |
2849 | static int __f2fs_ioc_move_range(struct file *filp, |
2850 | struct f2fs_move_range *range) | |
4dd6f977 | 2851 | { |
4dd6f977 JK |
2852 | struct fd dst; |
2853 | int err; | |
2854 | ||
2855 | if (!(filp->f_mode & FMODE_READ) || | |
2856 | !(filp->f_mode & FMODE_WRITE)) | |
2857 | return -EBADF; | |
2858 | ||
34178b1b | 2859 | dst = fdget(range->dst_fd); |
4dd6f977 JK |
2860 | if (!dst.file) |
2861 | return -EBADF; | |
2862 | ||
2863 | if (!(dst.file->f_mode & FMODE_WRITE)) { | |
2864 | err = -EBADF; | |
2865 | goto err_out; | |
2866 | } | |
2867 | ||
2868 | err = mnt_want_write_file(filp); | |
2869 | if (err) | |
2870 | goto err_out; | |
2871 | ||
34178b1b CY |
2872 | err = f2fs_move_file_range(filp, range->pos_in, dst.file, |
2873 | range->pos_out, range->len); | |
4dd6f977 JK |
2874 | |
2875 | mnt_drop_write_file(filp); | |
4dd6f977 JK |
2876 | err_out: |
2877 | fdput(dst); | |
2878 | return err; | |
2879 | } | |
2880 | ||
34178b1b CY |
2881 | static int f2fs_ioc_move_range(struct file *filp, unsigned long arg) |
2882 | { | |
2883 | struct f2fs_move_range range; | |
2884 | ||
2885 | if (copy_from_user(&range, (struct f2fs_move_range __user *)arg, | |
2886 | sizeof(range))) | |
2887 | return -EFAULT; | |
2888 | return __f2fs_ioc_move_range(filp, &range); | |
2889 | } | |
2890 | ||
e066b83c JK |
2891 | static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg) |
2892 | { | |
2893 | struct inode *inode = file_inode(filp); | |
2894 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2895 | struct sit_info *sm = SIT_I(sbi); | |
2896 | unsigned int start_segno = 0, end_segno = 0; | |
2897 | unsigned int dev_start_segno = 0, dev_end_segno = 0; | |
2898 | struct f2fs_flush_device range; | |
2899 | int ret; | |
2900 | ||
2901 | if (!capable(CAP_SYS_ADMIN)) | |
2902 | return -EPERM; | |
2903 | ||
2904 | if (f2fs_readonly(sbi->sb)) | |
2905 | return -EROFS; | |
2906 | ||
4354994f DR |
2907 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
2908 | return -EINVAL; | |
2909 | ||
e066b83c JK |
2910 | if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg, |
2911 | sizeof(range))) | |
2912 | return -EFAULT; | |
2913 | ||
0916878d | 2914 | if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num || |
2c70c5e3 | 2915 | __is_large_section(sbi)) { |
dcbb4c10 JP |
2916 | f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1", |
2917 | range.dev_num, sbi->s_ndevs, sbi->segs_per_sec); | |
e066b83c JK |
2918 | return -EINVAL; |
2919 | } | |
2920 | ||
2921 | ret = mnt_want_write_file(filp); | |
2922 | if (ret) | |
2923 | return ret; | |
2924 | ||
2925 | if (range.dev_num != 0) | |
2926 | dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk); | |
2927 | dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk); | |
2928 | ||
2929 | start_segno = sm->last_victim[FLUSH_DEVICE]; | |
2930 | if (start_segno < dev_start_segno || start_segno >= dev_end_segno) | |
2931 | start_segno = dev_start_segno; | |
2932 | end_segno = min(start_segno + range.segments, dev_end_segno); | |
2933 | ||
2934 | while (start_segno < end_segno) { | |
fb24fea7 | 2935 | if (!down_write_trylock(&sbi->gc_lock)) { |
e066b83c JK |
2936 | ret = -EBUSY; |
2937 | goto out; | |
2938 | } | |
2939 | sm->last_victim[GC_CB] = end_segno + 1; | |
2940 | sm->last_victim[GC_GREEDY] = end_segno + 1; | |
2941 | sm->last_victim[ALLOC_NEXT] = end_segno + 1; | |
7dede886 | 2942 | ret = f2fs_gc(sbi, true, true, true, start_segno); |
e066b83c JK |
2943 | if (ret == -EAGAIN) |
2944 | ret = 0; | |
2945 | else if (ret < 0) | |
2946 | break; | |
2947 | start_segno++; | |
2948 | } | |
2949 | out: | |
2950 | mnt_drop_write_file(filp); | |
2951 | return ret; | |
2952 | } | |
2953 | ||
e65ef207 JK |
2954 | static int f2fs_ioc_get_features(struct file *filp, unsigned long arg) |
2955 | { | |
2956 | struct inode *inode = file_inode(filp); | |
2957 | u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature); | |
2958 | ||
2959 | /* Must validate to set it with SQLite behavior in Android. */ | |
2960 | sb_feature |= F2FS_FEATURE_ATOMIC_WRITE; | |
2961 | ||
2962 | return put_user(sb_feature, (u32 __user *)arg); | |
2963 | } | |
e066b83c | 2964 | |
2c1d0305 | 2965 | #ifdef CONFIG_QUOTA |
78130819 CY |
2966 | int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid) |
2967 | { | |
2968 | struct dquot *transfer_to[MAXQUOTAS] = {}; | |
2969 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2970 | struct super_block *sb = sbi->sb; | |
2971 | int err = 0; | |
2972 | ||
2973 | transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid)); | |
2974 | if (!IS_ERR(transfer_to[PRJQUOTA])) { | |
2975 | err = __dquot_transfer(inode, transfer_to); | |
2976 | if (err) | |
2977 | set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); | |
2978 | dqput(transfer_to[PRJQUOTA]); | |
2979 | } | |
2980 | return err; | |
2981 | } | |
2982 | ||
9b1bb01c | 2983 | static int f2fs_ioc_setproject(struct inode *inode, __u32 projid) |
2c1d0305 | 2984 | { |
2c1d0305 CY |
2985 | struct f2fs_inode_info *fi = F2FS_I(inode); |
2986 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2c1d0305 CY |
2987 | struct page *ipage; |
2988 | kprojid_t kprojid; | |
2989 | int err; | |
2990 | ||
7beb01f7 | 2991 | if (!f2fs_sb_has_project_quota(sbi)) { |
2c1d0305 CY |
2992 | if (projid != F2FS_DEF_PROJID) |
2993 | return -EOPNOTSUPP; | |
2994 | else | |
2995 | return 0; | |
2996 | } | |
2997 | ||
2998 | if (!f2fs_has_extra_attr(inode)) | |
2999 | return -EOPNOTSUPP; | |
3000 | ||
3001 | kprojid = make_kprojid(&init_user_ns, (projid_t)projid); | |
3002 | ||
3003 | if (projid_eq(kprojid, F2FS_I(inode)->i_projid)) | |
3004 | return 0; | |
3005 | ||
2c1d0305 | 3006 | err = -EPERM; |
2c1d0305 CY |
3007 | /* Is it quota file? Do not allow user to mess with it */ |
3008 | if (IS_NOQUOTA(inode)) | |
c8e92757 | 3009 | return err; |
2c1d0305 | 3010 | |
4d57b86d | 3011 | ipage = f2fs_get_node_page(sbi, inode->i_ino); |
c8e92757 WS |
3012 | if (IS_ERR(ipage)) |
3013 | return PTR_ERR(ipage); | |
2c1d0305 CY |
3014 | |
3015 | if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize, | |
3016 | i_projid)) { | |
3017 | err = -EOVERFLOW; | |
3018 | f2fs_put_page(ipage, 1); | |
c8e92757 | 3019 | return err; |
2c1d0305 CY |
3020 | } |
3021 | f2fs_put_page(ipage, 1); | |
3022 | ||
c22aecd7 CY |
3023 | err = dquot_initialize(inode); |
3024 | if (err) | |
c8e92757 | 3025 | return err; |
2c1d0305 | 3026 | |
78130819 CY |
3027 | f2fs_lock_op(sbi); |
3028 | err = f2fs_transfer_project_quota(inode, kprojid); | |
3029 | if (err) | |
3030 | goto out_unlock; | |
2c1d0305 CY |
3031 | |
3032 | F2FS_I(inode)->i_projid = kprojid; | |
3033 | inode->i_ctime = current_time(inode); | |
2c1d0305 | 3034 | f2fs_mark_inode_dirty_sync(inode, true); |
78130819 CY |
3035 | out_unlock: |
3036 | f2fs_unlock_op(sbi); | |
2c1d0305 CY |
3037 | return err; |
3038 | } | |
3039 | #else | |
78130819 CY |
3040 | int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid) |
3041 | { | |
3042 | return 0; | |
3043 | } | |
3044 | ||
9b1bb01c | 3045 | static int f2fs_ioc_setproject(struct inode *inode, __u32 projid) |
2c1d0305 CY |
3046 | { |
3047 | if (projid != F2FS_DEF_PROJID) | |
3048 | return -EOPNOTSUPP; | |
3049 | return 0; | |
3050 | } | |
3051 | #endif | |
3052 | ||
9b1bb01c | 3053 | int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa) |
2c1d0305 | 3054 | { |
9b1bb01c | 3055 | struct inode *inode = d_inode(dentry); |
2c1d0305 | 3056 | struct f2fs_inode_info *fi = F2FS_I(inode); |
9b1bb01c | 3057 | u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags); |
2c1d0305 | 3058 | |
9b1bb01c MS |
3059 | if (IS_ENCRYPTED(inode)) |
3060 | fsflags |= FS_ENCRYPT_FL; | |
3061 | if (IS_VERITY(inode)) | |
3062 | fsflags |= FS_VERITY_FL; | |
3063 | if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) | |
3064 | fsflags |= FS_INLINE_DATA_FL; | |
3065 | if (is_inode_flag_set(inode, FI_PIN_FILE)) | |
3066 | fsflags |= FS_NOCOW_FL; | |
3067 | ||
3068 | fileattr_fill_flags(fa, fsflags & F2FS_GETTABLE_FS_FL); | |
2c1d0305 | 3069 | |
7beb01f7 | 3070 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode))) |
6fc93c4e | 3071 | fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid); |
2c1d0305 | 3072 | |
c8e92757 WS |
3073 | return 0; |
3074 | } | |
3075 | ||
9b1bb01c MS |
3076 | int f2fs_fileattr_set(struct user_namespace *mnt_userns, |
3077 | struct dentry *dentry, struct fileattr *fa) | |
2c1d0305 | 3078 | { |
9b1bb01c MS |
3079 | struct inode *inode = d_inode(dentry); |
3080 | u32 fsflags = fa->flags, mask = F2FS_SETTABLE_FS_FL; | |
36098557 | 3081 | u32 iflags; |
2c1d0305 CY |
3082 | int err; |
3083 | ||
9b1bb01c MS |
3084 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
3085 | return -EIO; | |
3086 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode))) | |
3087 | return -ENOSPC; | |
3088 | if (fsflags & ~F2FS_GETTABLE_FS_FL) | |
2c1d0305 | 3089 | return -EOPNOTSUPP; |
9b1bb01c MS |
3090 | fsflags &= F2FS_SETTABLE_FS_FL; |
3091 | if (!fa->flags_valid) | |
3092 | mask &= FS_COMMON_FL; | |
2c1d0305 | 3093 | |
9b1bb01c | 3094 | iflags = f2fs_fsflags_to_iflags(fsflags); |
36098557 | 3095 | if (f2fs_mask_flags(inode->i_mode, iflags) != iflags) |
2c1d0305 CY |
3096 | return -EOPNOTSUPP; |
3097 | ||
9b1bb01c MS |
3098 | err = f2fs_setflags_common(inode, iflags, f2fs_fsflags_to_iflags(mask)); |
3099 | if (!err) | |
3100 | err = f2fs_ioc_setproject(inode, fa->fsx_projid); | |
2c1d0305 | 3101 | |
c8e92757 | 3102 | return err; |
2c1d0305 | 3103 | } |
e066b83c | 3104 | |
1ad71a27 JK |
3105 | int f2fs_pin_file_control(struct inode *inode, bool inc) |
3106 | { | |
3107 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3108 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3109 | ||
3110 | /* Use i_gc_failures for normal file as a risk signal. */ | |
3111 | if (inc) | |
2ef79ecb CY |
3112 | f2fs_i_gc_failures_write(inode, |
3113 | fi->i_gc_failures[GC_FAILURE_PIN] + 1); | |
1ad71a27 | 3114 | |
2ef79ecb | 3115 | if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) { |
dcbb4c10 JP |
3116 | f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials", |
3117 | __func__, inode->i_ino, | |
3118 | fi->i_gc_failures[GC_FAILURE_PIN]); | |
1ad71a27 JK |
3119 | clear_inode_flag(inode, FI_PIN_FILE); |
3120 | return -EAGAIN; | |
3121 | } | |
3122 | return 0; | |
3123 | } | |
3124 | ||
3125 | static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg) | |
3126 | { | |
3127 | struct inode *inode = file_inode(filp); | |
3128 | __u32 pin; | |
3129 | int ret = 0; | |
3130 | ||
1ad71a27 JK |
3131 | if (get_user(pin, (__u32 __user *)arg)) |
3132 | return -EFAULT; | |
3133 | ||
3134 | if (!S_ISREG(inode->i_mode)) | |
3135 | return -EINVAL; | |
3136 | ||
3137 | if (f2fs_readonly(F2FS_I_SB(inode)->sb)) | |
3138 | return -EROFS; | |
3139 | ||
3140 | ret = mnt_want_write_file(filp); | |
3141 | if (ret) | |
3142 | return ret; | |
3143 | ||
3144 | inode_lock(inode); | |
3145 | ||
4d57b86d | 3146 | if (f2fs_should_update_outplace(inode, NULL)) { |
bb9e3bb8 CY |
3147 | ret = -EINVAL; |
3148 | goto out; | |
3149 | } | |
3150 | ||
1ad71a27 JK |
3151 | if (!pin) { |
3152 | clear_inode_flag(inode, FI_PIN_FILE); | |
30933364 | 3153 | f2fs_i_gc_failures_write(inode, 0); |
1ad71a27 JK |
3154 | goto done; |
3155 | } | |
3156 | ||
3157 | if (f2fs_pin_file_control(inode, false)) { | |
3158 | ret = -EAGAIN; | |
3159 | goto out; | |
3160 | } | |
4c8ff709 | 3161 | |
1ad71a27 JK |
3162 | ret = f2fs_convert_inline_inode(inode); |
3163 | if (ret) | |
3164 | goto out; | |
3165 | ||
78134d03 | 3166 | if (!f2fs_disable_compressed_file(inode)) { |
4c8ff709 CY |
3167 | ret = -EOPNOTSUPP; |
3168 | goto out; | |
3169 | } | |
3170 | ||
1ad71a27 | 3171 | set_inode_flag(inode, FI_PIN_FILE); |
2ef79ecb | 3172 | ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]; |
1ad71a27 JK |
3173 | done: |
3174 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); | |
3175 | out: | |
3176 | inode_unlock(inode); | |
3177 | mnt_drop_write_file(filp); | |
3178 | return ret; | |
3179 | } | |
3180 | ||
3181 | static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg) | |
3182 | { | |
3183 | struct inode *inode = file_inode(filp); | |
3184 | __u32 pin = 0; | |
3185 | ||
3186 | if (is_inode_flag_set(inode, FI_PIN_FILE)) | |
2ef79ecb | 3187 | pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]; |
1ad71a27 JK |
3188 | return put_user(pin, (u32 __user *)arg); |
3189 | } | |
3190 | ||
c4020b2d CY |
3191 | int f2fs_precache_extents(struct inode *inode) |
3192 | { | |
3193 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3194 | struct f2fs_map_blocks map; | |
3195 | pgoff_t m_next_extent; | |
3196 | loff_t end; | |
3197 | int err; | |
3198 | ||
3199 | if (is_inode_flag_set(inode, FI_NO_EXTENT)) | |
3200 | return -EOPNOTSUPP; | |
3201 | ||
3202 | map.m_lblk = 0; | |
3203 | map.m_next_pgofs = NULL; | |
3204 | map.m_next_extent = &m_next_extent; | |
3205 | map.m_seg_type = NO_CHECK_TYPE; | |
f4f0b677 | 3206 | map.m_may_create = false; |
6d1451bf | 3207 | end = max_file_blocks(inode); |
c4020b2d CY |
3208 | |
3209 | while (map.m_lblk < end) { | |
3210 | map.m_len = end - map.m_lblk; | |
3211 | ||
b2532c69 | 3212 | down_write(&fi->i_gc_rwsem[WRITE]); |
c4020b2d | 3213 | err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE); |
b2532c69 | 3214 | up_write(&fi->i_gc_rwsem[WRITE]); |
c4020b2d CY |
3215 | if (err) |
3216 | return err; | |
3217 | ||
3218 | map.m_lblk = m_next_extent; | |
3219 | } | |
3220 | ||
4f55dc2a | 3221 | return 0; |
c4020b2d CY |
3222 | } |
3223 | ||
3224 | static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg) | |
3225 | { | |
3226 | return f2fs_precache_extents(file_inode(filp)); | |
3227 | } | |
3228 | ||
04f0b2ea QS |
3229 | static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg) |
3230 | { | |
3231 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp)); | |
3232 | __u64 block_count; | |
04f0b2ea QS |
3233 | |
3234 | if (!capable(CAP_SYS_ADMIN)) | |
3235 | return -EPERM; | |
3236 | ||
3237 | if (f2fs_readonly(sbi->sb)) | |
3238 | return -EROFS; | |
3239 | ||
3240 | if (copy_from_user(&block_count, (void __user *)arg, | |
3241 | sizeof(block_count))) | |
3242 | return -EFAULT; | |
3243 | ||
b4b10061 | 3244 | return f2fs_resize_fs(sbi, block_count); |
04f0b2ea QS |
3245 | } |
3246 | ||
95ae251f EB |
3247 | static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg) |
3248 | { | |
3249 | struct inode *inode = file_inode(filp); | |
3250 | ||
3251 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); | |
3252 | ||
3253 | if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) { | |
3254 | f2fs_warn(F2FS_I_SB(inode), | |
833dcd35 | 3255 | "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem", |
95ae251f EB |
3256 | inode->i_ino); |
3257 | return -EOPNOTSUPP; | |
3258 | } | |
3259 | ||
3260 | return fsverity_ioctl_enable(filp, (const void __user *)arg); | |
3261 | } | |
3262 | ||
3263 | static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg) | |
3264 | { | |
3265 | if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp)))) | |
3266 | return -EOPNOTSUPP; | |
3267 | ||
3268 | return fsverity_ioctl_measure(filp, (void __user *)arg); | |
3269 | } | |
3270 | ||
e17fe657 EB |
3271 | static int f2fs_ioc_read_verity_metadata(struct file *filp, unsigned long arg) |
3272 | { | |
3273 | if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp)))) | |
3274 | return -EOPNOTSUPP; | |
3275 | ||
3276 | return fsverity_ioctl_read_metadata(filp, (const void __user *)arg); | |
3277 | } | |
3278 | ||
3357af8f | 3279 | static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg) |
4507847c CY |
3280 | { |
3281 | struct inode *inode = file_inode(filp); | |
3282 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3283 | char *vbuf; | |
3284 | int count; | |
3285 | int err = 0; | |
3286 | ||
3287 | vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL); | |
3288 | if (!vbuf) | |
3289 | return -ENOMEM; | |
3290 | ||
3291 | down_read(&sbi->sb_lock); | |
3292 | count = utf16s_to_utf8s(sbi->raw_super->volume_name, | |
3293 | ARRAY_SIZE(sbi->raw_super->volume_name), | |
3294 | UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME); | |
3295 | up_read(&sbi->sb_lock); | |
3296 | ||
3297 | if (copy_to_user((char __user *)arg, vbuf, | |
3298 | min(FSLABEL_MAX, count))) | |
3299 | err = -EFAULT; | |
3300 | ||
c8eb7024 | 3301 | kfree(vbuf); |
4507847c CY |
3302 | return err; |
3303 | } | |
3304 | ||
3357af8f | 3305 | static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg) |
4507847c CY |
3306 | { |
3307 | struct inode *inode = file_inode(filp); | |
3308 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3309 | char *vbuf; | |
3310 | int err = 0; | |
3311 | ||
3312 | if (!capable(CAP_SYS_ADMIN)) | |
3313 | return -EPERM; | |
3314 | ||
3315 | vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX); | |
3316 | if (IS_ERR(vbuf)) | |
3317 | return PTR_ERR(vbuf); | |
3318 | ||
3319 | err = mnt_want_write_file(filp); | |
3320 | if (err) | |
3321 | goto out; | |
3322 | ||
3323 | down_write(&sbi->sb_lock); | |
3324 | ||
3325 | memset(sbi->raw_super->volume_name, 0, | |
3326 | sizeof(sbi->raw_super->volume_name)); | |
3327 | utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN, | |
3328 | sbi->raw_super->volume_name, | |
3329 | ARRAY_SIZE(sbi->raw_super->volume_name)); | |
3330 | ||
3331 | err = f2fs_commit_super(sbi, false); | |
3332 | ||
3333 | up_write(&sbi->sb_lock); | |
3334 | ||
3335 | mnt_drop_write_file(filp); | |
3336 | out: | |
3337 | kfree(vbuf); | |
3338 | return err; | |
3339 | } | |
3340 | ||
439dfb10 CY |
3341 | static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg) |
3342 | { | |
3343 | struct inode *inode = file_inode(filp); | |
3344 | __u64 blocks; | |
3345 | ||
3346 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3347 | return -EOPNOTSUPP; | |
3348 | ||
3349 | if (!f2fs_compressed_file(inode)) | |
3350 | return -EINVAL; | |
3351 | ||
c2759eba | 3352 | blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks); |
439dfb10 CY |
3353 | return put_user(blocks, (u64 __user *)arg); |
3354 | } | |
3355 | ||
ef8d563f CY |
3356 | static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count) |
3357 | { | |
3358 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
3359 | unsigned int released_blocks = 0; | |
3360 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
3361 | block_t blkaddr; | |
3362 | int i; | |
3363 | ||
3364 | for (i = 0; i < count; i++) { | |
3365 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
3366 | dn->ofs_in_node + i); | |
3367 | ||
3368 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3369 | continue; | |
3370 | if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
3371 | DATA_GENERIC_ENHANCE))) | |
3372 | return -EFSCORRUPTED; | |
3373 | } | |
3374 | ||
3375 | while (count) { | |
3376 | int compr_blocks = 0; | |
3377 | ||
3378 | for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) { | |
3379 | blkaddr = f2fs_data_blkaddr(dn); | |
3380 | ||
3381 | if (i == 0) { | |
3382 | if (blkaddr == COMPRESS_ADDR) | |
3383 | continue; | |
3384 | dn->ofs_in_node += cluster_size; | |
3385 | goto next; | |
3386 | } | |
3387 | ||
3388 | if (__is_valid_data_blkaddr(blkaddr)) | |
3389 | compr_blocks++; | |
3390 | ||
3391 | if (blkaddr != NEW_ADDR) | |
3392 | continue; | |
3393 | ||
3394 | dn->data_blkaddr = NULL_ADDR; | |
3395 | f2fs_set_data_blkaddr(dn); | |
3396 | } | |
3397 | ||
3398 | f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false); | |
3399 | dec_valid_block_count(sbi, dn->inode, | |
3400 | cluster_size - compr_blocks); | |
3401 | ||
3402 | released_blocks += cluster_size - compr_blocks; | |
3403 | next: | |
3404 | count -= cluster_size; | |
3405 | } | |
3406 | ||
3407 | return released_blocks; | |
3408 | } | |
3409 | ||
3410 | static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg) | |
3411 | { | |
3412 | struct inode *inode = file_inode(filp); | |
3413 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3414 | pgoff_t page_idx = 0, last_idx; | |
3415 | unsigned int released_blocks = 0; | |
3416 | int ret; | |
3417 | int writecount; | |
3418 | ||
3419 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3420 | return -EOPNOTSUPP; | |
3421 | ||
3422 | if (!f2fs_compressed_file(inode)) | |
3423 | return -EINVAL; | |
3424 | ||
3425 | if (f2fs_readonly(sbi->sb)) | |
3426 | return -EROFS; | |
3427 | ||
3428 | ret = mnt_want_write_file(filp); | |
3429 | if (ret) | |
3430 | return ret; | |
3431 | ||
3432 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
3433 | ||
3434 | inode_lock(inode); | |
3435 | ||
3436 | writecount = atomic_read(&inode->i_writecount); | |
8c8cf26a DJ |
3437 | if ((filp->f_mode & FMODE_WRITE && writecount != 1) || |
3438 | (!(filp->f_mode & FMODE_WRITE) && writecount)) { | |
ef8d563f CY |
3439 | ret = -EBUSY; |
3440 | goto out; | |
3441 | } | |
3442 | ||
c6140415 | 3443 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
ef8d563f CY |
3444 | ret = -EINVAL; |
3445 | goto out; | |
3446 | } | |
3447 | ||
3448 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); | |
3449 | if (ret) | |
3450 | goto out; | |
3451 | ||
c6140415 | 3452 | set_inode_flag(inode, FI_COMPRESS_RELEASED); |
ef8d563f CY |
3453 | inode->i_ctime = current_time(inode); |
3454 | f2fs_mark_inode_dirty_sync(inode, true); | |
3455 | ||
c2759eba | 3456 | if (!atomic_read(&F2FS_I(inode)->i_compr_blocks)) |
567c4bf5 DJ |
3457 | goto out; |
3458 | ||
ef8d563f | 3459 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 3460 | filemap_invalidate_lock(inode->i_mapping); |
ef8d563f CY |
3461 | |
3462 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
3463 | ||
3464 | while (page_idx < last_idx) { | |
3465 | struct dnode_of_data dn; | |
3466 | pgoff_t end_offset, count; | |
3467 | ||
3468 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3469 | ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE); | |
3470 | if (ret) { | |
3471 | if (ret == -ENOENT) { | |
3472 | page_idx = f2fs_get_next_page_offset(&dn, | |
3473 | page_idx); | |
3474 | ret = 0; | |
3475 | continue; | |
3476 | } | |
3477 | break; | |
3478 | } | |
3479 | ||
3480 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3481 | count = min(end_offset - dn.ofs_in_node, last_idx - page_idx); | |
4fec3fc0 | 3482 | count = round_up(count, F2FS_I(inode)->i_cluster_size); |
ef8d563f CY |
3483 | |
3484 | ret = release_compress_blocks(&dn, count); | |
3485 | ||
3486 | f2fs_put_dnode(&dn); | |
3487 | ||
3488 | if (ret < 0) | |
3489 | break; | |
3490 | ||
3491 | page_idx += count; | |
3492 | released_blocks += ret; | |
3493 | } | |
3494 | ||
edc6d01b | 3495 | filemap_invalidate_unlock(inode->i_mapping); |
d75da8c8 | 3496 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
ef8d563f CY |
3497 | out: |
3498 | inode_unlock(inode); | |
3499 | ||
3500 | mnt_drop_write_file(filp); | |
3501 | ||
3502 | if (ret >= 0) { | |
3503 | ret = put_user(released_blocks, (u64 __user *)arg); | |
c2759eba DJ |
3504 | } else if (released_blocks && |
3505 | atomic_read(&F2FS_I(inode)->i_compr_blocks)) { | |
ef8d563f CY |
3506 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
3507 | f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx " | |
c2759eba | 3508 | "iblocks=%llu, released=%u, compr_blocks=%u, " |
ef8d563f CY |
3509 | "run fsck to fix.", |
3510 | __func__, inode->i_ino, inode->i_blocks, | |
3511 | released_blocks, | |
c2759eba | 3512 | atomic_read(&F2FS_I(inode)->i_compr_blocks)); |
ef8d563f CY |
3513 | } |
3514 | ||
3515 | return ret; | |
3516 | } | |
3517 | ||
c75488fb CY |
3518 | static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count) |
3519 | { | |
3520 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
3521 | unsigned int reserved_blocks = 0; | |
3522 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
3523 | block_t blkaddr; | |
3524 | int i; | |
3525 | ||
3526 | for (i = 0; i < count; i++) { | |
3527 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
3528 | dn->ofs_in_node + i); | |
3529 | ||
3530 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3531 | continue; | |
3532 | if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
3533 | DATA_GENERIC_ENHANCE))) | |
3534 | return -EFSCORRUPTED; | |
3535 | } | |
3536 | ||
3537 | while (count) { | |
3538 | int compr_blocks = 0; | |
3539 | blkcnt_t reserved; | |
3540 | int ret; | |
3541 | ||
3542 | for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) { | |
3543 | blkaddr = f2fs_data_blkaddr(dn); | |
3544 | ||
3545 | if (i == 0) { | |
3546 | if (blkaddr == COMPRESS_ADDR) | |
3547 | continue; | |
3548 | dn->ofs_in_node += cluster_size; | |
3549 | goto next; | |
3550 | } | |
3551 | ||
3552 | if (__is_valid_data_blkaddr(blkaddr)) { | |
3553 | compr_blocks++; | |
3554 | continue; | |
3555 | } | |
3556 | ||
3557 | dn->data_blkaddr = NEW_ADDR; | |
3558 | f2fs_set_data_blkaddr(dn); | |
3559 | } | |
3560 | ||
3561 | reserved = cluster_size - compr_blocks; | |
3562 | ret = inc_valid_block_count(sbi, dn->inode, &reserved); | |
3563 | if (ret) | |
3564 | return ret; | |
3565 | ||
3566 | if (reserved != cluster_size - compr_blocks) | |
3567 | return -ENOSPC; | |
3568 | ||
3569 | f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true); | |
3570 | ||
3571 | reserved_blocks += reserved; | |
3572 | next: | |
3573 | count -= cluster_size; | |
3574 | } | |
3575 | ||
3576 | return reserved_blocks; | |
3577 | } | |
3578 | ||
3579 | static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg) | |
3580 | { | |
3581 | struct inode *inode = file_inode(filp); | |
3582 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3583 | pgoff_t page_idx = 0, last_idx; | |
3584 | unsigned int reserved_blocks = 0; | |
3585 | int ret; | |
3586 | ||
3587 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3588 | return -EOPNOTSUPP; | |
3589 | ||
3590 | if (!f2fs_compressed_file(inode)) | |
3591 | return -EINVAL; | |
3592 | ||
3593 | if (f2fs_readonly(sbi->sb)) | |
3594 | return -EROFS; | |
3595 | ||
3596 | ret = mnt_want_write_file(filp); | |
3597 | if (ret) | |
3598 | return ret; | |
3599 | ||
c2759eba | 3600 | if (atomic_read(&F2FS_I(inode)->i_compr_blocks)) |
c75488fb CY |
3601 | goto out; |
3602 | ||
3603 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
3604 | ||
3605 | inode_lock(inode); | |
3606 | ||
c6140415 | 3607 | if (!is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
c75488fb CY |
3608 | ret = -EINVAL; |
3609 | goto unlock_inode; | |
3610 | } | |
3611 | ||
3612 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); | |
edc6d01b | 3613 | filemap_invalidate_lock(inode->i_mapping); |
c75488fb CY |
3614 | |
3615 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
3616 | ||
3617 | while (page_idx < last_idx) { | |
3618 | struct dnode_of_data dn; | |
3619 | pgoff_t end_offset, count; | |
3620 | ||
3621 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3622 | ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE); | |
3623 | if (ret) { | |
3624 | if (ret == -ENOENT) { | |
3625 | page_idx = f2fs_get_next_page_offset(&dn, | |
3626 | page_idx); | |
3627 | ret = 0; | |
3628 | continue; | |
3629 | } | |
3630 | break; | |
3631 | } | |
3632 | ||
3633 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3634 | count = min(end_offset - dn.ofs_in_node, last_idx - page_idx); | |
4fec3fc0 | 3635 | count = round_up(count, F2FS_I(inode)->i_cluster_size); |
c75488fb CY |
3636 | |
3637 | ret = reserve_compress_blocks(&dn, count); | |
3638 | ||
3639 | f2fs_put_dnode(&dn); | |
3640 | ||
3641 | if (ret < 0) | |
3642 | break; | |
3643 | ||
3644 | page_idx += count; | |
3645 | reserved_blocks += ret; | |
3646 | } | |
3647 | ||
edc6d01b | 3648 | filemap_invalidate_unlock(inode->i_mapping); |
d75da8c8 | 3649 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
c75488fb CY |
3650 | |
3651 | if (ret >= 0) { | |
c6140415 | 3652 | clear_inode_flag(inode, FI_COMPRESS_RELEASED); |
c75488fb CY |
3653 | inode->i_ctime = current_time(inode); |
3654 | f2fs_mark_inode_dirty_sync(inode, true); | |
3655 | } | |
3656 | unlock_inode: | |
3657 | inode_unlock(inode); | |
3658 | out: | |
3659 | mnt_drop_write_file(filp); | |
3660 | ||
3661 | if (ret >= 0) { | |
3662 | ret = put_user(reserved_blocks, (u64 __user *)arg); | |
c2759eba DJ |
3663 | } else if (reserved_blocks && |
3664 | atomic_read(&F2FS_I(inode)->i_compr_blocks)) { | |
c75488fb CY |
3665 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
3666 | f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx " | |
c2759eba | 3667 | "iblocks=%llu, reserved=%u, compr_blocks=%u, " |
c75488fb CY |
3668 | "run fsck to fix.", |
3669 | __func__, inode->i_ino, inode->i_blocks, | |
3670 | reserved_blocks, | |
c2759eba | 3671 | atomic_read(&F2FS_I(inode)->i_compr_blocks)); |
c75488fb CY |
3672 | } |
3673 | ||
3674 | return ret; | |
3675 | } | |
3676 | ||
9af84648 DJ |
3677 | static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode, |
3678 | pgoff_t off, block_t block, block_t len, u32 flags) | |
3679 | { | |
3680 | struct request_queue *q = bdev_get_queue(bdev); | |
3681 | sector_t sector = SECTOR_FROM_BLOCK(block); | |
3682 | sector_t nr_sects = SECTOR_FROM_BLOCK(len); | |
3683 | int ret = 0; | |
3684 | ||
3685 | if (!q) | |
3686 | return -ENXIO; | |
3687 | ||
3688 | if (flags & F2FS_TRIM_FILE_DISCARD) | |
3689 | ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS, | |
3690 | blk_queue_secure_erase(q) ? | |
3691 | BLKDEV_DISCARD_SECURE : 0); | |
3692 | ||
3693 | if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) { | |
3694 | if (IS_ENCRYPTED(inode)) | |
3695 | ret = fscrypt_zeroout_range(inode, off, block, len); | |
3696 | else | |
3697 | ret = blkdev_issue_zeroout(bdev, sector, nr_sects, | |
3698 | GFP_NOFS, 0); | |
3699 | } | |
3700 | ||
3701 | return ret; | |
3702 | } | |
3703 | ||
3704 | static int f2fs_sec_trim_file(struct file *filp, unsigned long arg) | |
3705 | { | |
3706 | struct inode *inode = file_inode(filp); | |
3707 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3708 | struct address_space *mapping = inode->i_mapping; | |
3709 | struct block_device *prev_bdev = NULL; | |
3710 | struct f2fs_sectrim_range range; | |
3711 | pgoff_t index, pg_end, prev_index = 0; | |
3712 | block_t prev_block = 0, len = 0; | |
3713 | loff_t end_addr; | |
3714 | bool to_end = false; | |
3715 | int ret = 0; | |
3716 | ||
3717 | if (!(filp->f_mode & FMODE_WRITE)) | |
3718 | return -EBADF; | |
3719 | ||
3720 | if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg, | |
3721 | sizeof(range))) | |
3722 | return -EFAULT; | |
3723 | ||
3724 | if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) || | |
3725 | !S_ISREG(inode->i_mode)) | |
3726 | return -EINVAL; | |
3727 | ||
3728 | if (((range.flags & F2FS_TRIM_FILE_DISCARD) && | |
3729 | !f2fs_hw_support_discard(sbi)) || | |
3730 | ((range.flags & F2FS_TRIM_FILE_ZEROOUT) && | |
3731 | IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi))) | |
3732 | return -EOPNOTSUPP; | |
3733 | ||
3734 | file_start_write(filp); | |
3735 | inode_lock(inode); | |
3736 | ||
3737 | if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) || | |
3738 | range.start >= inode->i_size) { | |
3739 | ret = -EINVAL; | |
3740 | goto err; | |
3741 | } | |
3742 | ||
3743 | if (range.len == 0) | |
3744 | goto err; | |
3745 | ||
3746 | if (inode->i_size - range.start > range.len) { | |
3747 | end_addr = range.start + range.len; | |
3748 | } else { | |
3749 | end_addr = range.len == (u64)-1 ? | |
3750 | sbi->sb->s_maxbytes : inode->i_size; | |
3751 | to_end = true; | |
3752 | } | |
3753 | ||
3754 | if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) || | |
3755 | (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) { | |
3756 | ret = -EINVAL; | |
3757 | goto err; | |
3758 | } | |
3759 | ||
3760 | index = F2FS_BYTES_TO_BLK(range.start); | |
3761 | pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE); | |
3762 | ||
3763 | ret = f2fs_convert_inline_inode(inode); | |
3764 | if (ret) | |
3765 | goto err; | |
3766 | ||
3767 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); | |
edc6d01b | 3768 | filemap_invalidate_lock(mapping); |
9af84648 DJ |
3769 | |
3770 | ret = filemap_write_and_wait_range(mapping, range.start, | |
3771 | to_end ? LLONG_MAX : end_addr - 1); | |
3772 | if (ret) | |
3773 | goto out; | |
3774 | ||
3775 | truncate_inode_pages_range(mapping, range.start, | |
3776 | to_end ? -1 : end_addr - 1); | |
3777 | ||
3778 | while (index < pg_end) { | |
3779 | struct dnode_of_data dn; | |
3780 | pgoff_t end_offset, count; | |
3781 | int i; | |
3782 | ||
3783 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3784 | ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE); | |
3785 | if (ret) { | |
3786 | if (ret == -ENOENT) { | |
3787 | index = f2fs_get_next_page_offset(&dn, index); | |
3788 | continue; | |
3789 | } | |
3790 | goto out; | |
3791 | } | |
3792 | ||
3793 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3794 | count = min(end_offset - dn.ofs_in_node, pg_end - index); | |
3795 | for (i = 0; i < count; i++, index++, dn.ofs_in_node++) { | |
3796 | struct block_device *cur_bdev; | |
3797 | block_t blkaddr = f2fs_data_blkaddr(&dn); | |
3798 | ||
3799 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3800 | continue; | |
3801 | ||
3802 | if (!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
3803 | DATA_GENERIC_ENHANCE)) { | |
3804 | ret = -EFSCORRUPTED; | |
3805 | f2fs_put_dnode(&dn); | |
3806 | goto out; | |
3807 | } | |
3808 | ||
3809 | cur_bdev = f2fs_target_device(sbi, blkaddr, NULL); | |
3810 | if (f2fs_is_multi_device(sbi)) { | |
3811 | int di = f2fs_target_device_index(sbi, blkaddr); | |
3812 | ||
3813 | blkaddr -= FDEV(di).start_blk; | |
3814 | } | |
3815 | ||
3816 | if (len) { | |
3817 | if (prev_bdev == cur_bdev && | |
3818 | index == prev_index + len && | |
3819 | blkaddr == prev_block + len) { | |
3820 | len++; | |
3821 | } else { | |
3822 | ret = f2fs_secure_erase(prev_bdev, | |
3823 | inode, prev_index, prev_block, | |
3824 | len, range.flags); | |
3825 | if (ret) { | |
3826 | f2fs_put_dnode(&dn); | |
3827 | goto out; | |
3828 | } | |
3829 | ||
3830 | len = 0; | |
3831 | } | |
3832 | } | |
3833 | ||
3834 | if (!len) { | |
3835 | prev_bdev = cur_bdev; | |
3836 | prev_index = index; | |
3837 | prev_block = blkaddr; | |
3838 | len = 1; | |
3839 | } | |
3840 | } | |
3841 | ||
3842 | f2fs_put_dnode(&dn); | |
3843 | ||
3844 | if (fatal_signal_pending(current)) { | |
3845 | ret = -EINTR; | |
3846 | goto out; | |
3847 | } | |
3848 | cond_resched(); | |
3849 | } | |
3850 | ||
3851 | if (len) | |
3852 | ret = f2fs_secure_erase(prev_bdev, inode, prev_index, | |
3853 | prev_block, len, range.flags); | |
3854 | out: | |
edc6d01b | 3855 | filemap_invalidate_unlock(mapping); |
9af84648 DJ |
3856 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
3857 | err: | |
3858 | inode_unlock(inode); | |
3859 | file_end_write(filp); | |
3860 | ||
3861 | return ret; | |
3862 | } | |
3863 | ||
9e2a5f8c | 3864 | static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg) |
52656e6c | 3865 | { |
9e2a5f8c DJ |
3866 | struct inode *inode = file_inode(filp); |
3867 | struct f2fs_comp_option option; | |
3868 | ||
3869 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3870 | return -EOPNOTSUPP; | |
3871 | ||
3872 | inode_lock_shared(inode); | |
3873 | ||
3874 | if (!f2fs_compressed_file(inode)) { | |
3875 | inode_unlock_shared(inode); | |
3876 | return -ENODATA; | |
3877 | } | |
3878 | ||
3879 | option.algorithm = F2FS_I(inode)->i_compress_algorithm; | |
3880 | option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size; | |
3881 | ||
3882 | inode_unlock_shared(inode); | |
3883 | ||
3884 | if (copy_to_user((struct f2fs_comp_option __user *)arg, &option, | |
3885 | sizeof(option))) | |
3886 | return -EFAULT; | |
3887 | ||
3888 | return 0; | |
3889 | } | |
3890 | ||
e1e8debe DJ |
3891 | static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg) |
3892 | { | |
3893 | struct inode *inode = file_inode(filp); | |
3894 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3895 | struct f2fs_comp_option option; | |
3896 | int ret = 0; | |
1f227a3e | 3897 | |
e1e8debe DJ |
3898 | if (!f2fs_sb_has_compression(sbi)) |
3899 | return -EOPNOTSUPP; | |
3900 | ||
3901 | if (!(filp->f_mode & FMODE_WRITE)) | |
3902 | return -EBADF; | |
3903 | ||
3904 | if (copy_from_user(&option, (struct f2fs_comp_option __user *)arg, | |
3905 | sizeof(option))) | |
3906 | return -EFAULT; | |
3907 | ||
3908 | if (!f2fs_compressed_file(inode) || | |
3909 | option.log_cluster_size < MIN_COMPRESS_LOG_SIZE || | |
3910 | option.log_cluster_size > MAX_COMPRESS_LOG_SIZE || | |
3911 | option.algorithm >= COMPRESS_MAX) | |
3912 | return -EINVAL; | |
3913 | ||
3914 | file_start_write(filp); | |
3915 | inode_lock(inode); | |
3916 | ||
3917 | if (f2fs_is_mmap_file(inode) || get_dirty_pages(inode)) { | |
3918 | ret = -EBUSY; | |
3919 | goto out; | |
3920 | } | |
3921 | ||
3922 | if (inode->i_size != 0) { | |
3923 | ret = -EFBIG; | |
3924 | goto out; | |
3925 | } | |
3926 | ||
3927 | F2FS_I(inode)->i_compress_algorithm = option.algorithm; | |
3928 | F2FS_I(inode)->i_log_cluster_size = option.log_cluster_size; | |
3929 | F2FS_I(inode)->i_cluster_size = 1 << option.log_cluster_size; | |
3930 | f2fs_mark_inode_dirty_sync(inode, true); | |
3931 | ||
3932 | if (!f2fs_is_compress_backend_ready(inode)) | |
3933 | f2fs_warn(sbi, "compression algorithm is successfully set, " | |
3934 | "but current kernel doesn't support this algorithm."); | |
3935 | out: | |
3936 | inode_unlock(inode); | |
3937 | file_end_write(filp); | |
3938 | ||
3939 | return ret; | |
3940 | } | |
3941 | ||
5fdb322f DJ |
3942 | static int redirty_blocks(struct inode *inode, pgoff_t page_idx, int len) |
3943 | { | |
fcd9ae4f | 3944 | DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, page_idx); |
5fdb322f DJ |
3945 | struct address_space *mapping = inode->i_mapping; |
3946 | struct page *page; | |
3947 | pgoff_t redirty_idx = page_idx; | |
3948 | int i, page_len = 0, ret = 0; | |
3949 | ||
3950 | page_cache_ra_unbounded(&ractl, len, 0); | |
3951 | ||
3952 | for (i = 0; i < len; i++, page_idx++) { | |
3953 | page = read_cache_page(mapping, page_idx, NULL, NULL); | |
3954 | if (IS_ERR(page)) { | |
3955 | ret = PTR_ERR(page); | |
3956 | break; | |
3957 | } | |
3958 | page_len++; | |
3959 | } | |
3960 | ||
3961 | for (i = 0; i < page_len; i++, redirty_idx++) { | |
3962 | page = find_lock_page(mapping, redirty_idx); | |
df0736d7 DJ |
3963 | if (!page) { |
3964 | ret = -ENOMEM; | |
3965 | break; | |
3966 | } | |
5fdb322f DJ |
3967 | set_page_dirty(page); |
3968 | f2fs_put_page(page, 1); | |
3969 | f2fs_put_page(page, 0); | |
3970 | } | |
3971 | ||
3972 | return ret; | |
3973 | } | |
3974 | ||
3975 | static int f2fs_ioc_decompress_file(struct file *filp, unsigned long arg) | |
3976 | { | |
3977 | struct inode *inode = file_inode(filp); | |
3978 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3979 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3980 | pgoff_t page_idx = 0, last_idx; | |
3981 | unsigned int blk_per_seg = sbi->blocks_per_seg; | |
3982 | int cluster_size = F2FS_I(inode)->i_cluster_size; | |
3983 | int count, ret; | |
3984 | ||
3985 | if (!f2fs_sb_has_compression(sbi) || | |
3986 | F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER) | |
3987 | return -EOPNOTSUPP; | |
3988 | ||
3989 | if (!(filp->f_mode & FMODE_WRITE)) | |
3990 | return -EBADF; | |
3991 | ||
3992 | if (!f2fs_compressed_file(inode)) | |
3993 | return -EINVAL; | |
3994 | ||
3995 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
3996 | ||
3997 | file_start_write(filp); | |
3998 | inode_lock(inode); | |
3999 | ||
4000 | if (!f2fs_is_compress_backend_ready(inode)) { | |
4001 | ret = -EOPNOTSUPP; | |
4002 | goto out; | |
4003 | } | |
4004 | ||
4005 | if (f2fs_is_mmap_file(inode)) { | |
4006 | ret = -EBUSY; | |
4007 | goto out; | |
4008 | } | |
4009 | ||
4010 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); | |
4011 | if (ret) | |
4012 | goto out; | |
4013 | ||
4014 | if (!atomic_read(&fi->i_compr_blocks)) | |
4015 | goto out; | |
4016 | ||
4017 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
4018 | ||
4019 | count = last_idx - page_idx; | |
4020 | while (count) { | |
4021 | int len = min(cluster_size, count); | |
4022 | ||
4023 | ret = redirty_blocks(inode, page_idx, len); | |
4024 | if (ret < 0) | |
4025 | break; | |
4026 | ||
4027 | if (get_dirty_pages(inode) >= blk_per_seg) | |
4028 | filemap_fdatawrite(inode->i_mapping); | |
4029 | ||
4030 | count -= len; | |
4031 | page_idx += len; | |
4032 | } | |
4033 | ||
4034 | if (!ret) | |
4035 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, | |
4036 | LLONG_MAX); | |
4037 | ||
4038 | if (ret) | |
833dcd35 JP |
4039 | f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.", |
4040 | __func__, ret); | |
5fdb322f DJ |
4041 | out: |
4042 | inode_unlock(inode); | |
4043 | file_end_write(filp); | |
4044 | ||
4045 | return ret; | |
4046 | } | |
4047 | ||
4048 | static int f2fs_ioc_compress_file(struct file *filp, unsigned long arg) | |
4049 | { | |
4050 | struct inode *inode = file_inode(filp); | |
4051 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4052 | pgoff_t page_idx = 0, last_idx; | |
4053 | unsigned int blk_per_seg = sbi->blocks_per_seg; | |
4054 | int cluster_size = F2FS_I(inode)->i_cluster_size; | |
4055 | int count, ret; | |
4056 | ||
4057 | if (!f2fs_sb_has_compression(sbi) || | |
4058 | F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER) | |
4059 | return -EOPNOTSUPP; | |
4060 | ||
4061 | if (!(filp->f_mode & FMODE_WRITE)) | |
4062 | return -EBADF; | |
4063 | ||
4064 | if (!f2fs_compressed_file(inode)) | |
4065 | return -EINVAL; | |
4066 | ||
4067 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
4068 | ||
4069 | file_start_write(filp); | |
4070 | inode_lock(inode); | |
4071 | ||
4072 | if (!f2fs_is_compress_backend_ready(inode)) { | |
4073 | ret = -EOPNOTSUPP; | |
4074 | goto out; | |
4075 | } | |
4076 | ||
4077 | if (f2fs_is_mmap_file(inode)) { | |
4078 | ret = -EBUSY; | |
4079 | goto out; | |
4080 | } | |
4081 | ||
4082 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); | |
4083 | if (ret) | |
4084 | goto out; | |
4085 | ||
4086 | set_inode_flag(inode, FI_ENABLE_COMPRESS); | |
4087 | ||
4088 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
4089 | ||
4090 | count = last_idx - page_idx; | |
4091 | while (count) { | |
4092 | int len = min(cluster_size, count); | |
4093 | ||
4094 | ret = redirty_blocks(inode, page_idx, len); | |
4095 | if (ret < 0) | |
4096 | break; | |
4097 | ||
4098 | if (get_dirty_pages(inode) >= blk_per_seg) | |
4099 | filemap_fdatawrite(inode->i_mapping); | |
4100 | ||
4101 | count -= len; | |
4102 | page_idx += len; | |
4103 | } | |
4104 | ||
4105 | if (!ret) | |
4106 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, | |
4107 | LLONG_MAX); | |
4108 | ||
4109 | clear_inode_flag(inode, FI_ENABLE_COMPRESS); | |
4110 | ||
4111 | if (ret) | |
833dcd35 JP |
4112 | f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.", |
4113 | __func__, ret); | |
5fdb322f DJ |
4114 | out: |
4115 | inode_unlock(inode); | |
4116 | file_end_write(filp); | |
4117 | ||
4118 | return ret; | |
4119 | } | |
4120 | ||
34178b1b | 4121 | static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
52656e6c JK |
4122 | { |
4123 | switch (cmd) { | |
3357af8f | 4124 | case FS_IOC_GETVERSION: |
d49f3e89 | 4125 | return f2fs_ioc_getversion(filp, arg); |
88b88a66 JK |
4126 | case F2FS_IOC_START_ATOMIC_WRITE: |
4127 | return f2fs_ioc_start_atomic_write(filp); | |
4128 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: | |
4129 | return f2fs_ioc_commit_atomic_write(filp); | |
02a1335f JK |
4130 | case F2FS_IOC_START_VOLATILE_WRITE: |
4131 | return f2fs_ioc_start_volatile_write(filp); | |
1e84371f JK |
4132 | case F2FS_IOC_RELEASE_VOLATILE_WRITE: |
4133 | return f2fs_ioc_release_volatile_write(filp); | |
4134 | case F2FS_IOC_ABORT_VOLATILE_WRITE: | |
4135 | return f2fs_ioc_abort_volatile_write(filp); | |
1abff93d JK |
4136 | case F2FS_IOC_SHUTDOWN: |
4137 | return f2fs_ioc_shutdown(filp, arg); | |
52656e6c JK |
4138 | case FITRIM: |
4139 | return f2fs_ioc_fitrim(filp, arg); | |
3357af8f | 4140 | case FS_IOC_SET_ENCRYPTION_POLICY: |
f424f664 | 4141 | return f2fs_ioc_set_encryption_policy(filp, arg); |
3357af8f | 4142 | case FS_IOC_GET_ENCRYPTION_POLICY: |
f424f664 | 4143 | return f2fs_ioc_get_encryption_policy(filp, arg); |
3357af8f | 4144 | case FS_IOC_GET_ENCRYPTION_PWSALT: |
f424f664 | 4145 | return f2fs_ioc_get_encryption_pwsalt(filp, arg); |
8ce589c7 EB |
4146 | case FS_IOC_GET_ENCRYPTION_POLICY_EX: |
4147 | return f2fs_ioc_get_encryption_policy_ex(filp, arg); | |
4148 | case FS_IOC_ADD_ENCRYPTION_KEY: | |
4149 | return f2fs_ioc_add_encryption_key(filp, arg); | |
4150 | case FS_IOC_REMOVE_ENCRYPTION_KEY: | |
4151 | return f2fs_ioc_remove_encryption_key(filp, arg); | |
4152 | case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: | |
4153 | return f2fs_ioc_remove_encryption_key_all_users(filp, arg); | |
4154 | case FS_IOC_GET_ENCRYPTION_KEY_STATUS: | |
4155 | return f2fs_ioc_get_encryption_key_status(filp, arg); | |
ee446e1a EB |
4156 | case FS_IOC_GET_ENCRYPTION_NONCE: |
4157 | return f2fs_ioc_get_encryption_nonce(filp, arg); | |
c1c1b583 CY |
4158 | case F2FS_IOC_GARBAGE_COLLECT: |
4159 | return f2fs_ioc_gc(filp, arg); | |
34dc77ad JK |
4160 | case F2FS_IOC_GARBAGE_COLLECT_RANGE: |
4161 | return f2fs_ioc_gc_range(filp, arg); | |
456b88e4 | 4162 | case F2FS_IOC_WRITE_CHECKPOINT: |
059c0648 | 4163 | return f2fs_ioc_write_checkpoint(filp, arg); |
d323d005 CY |
4164 | case F2FS_IOC_DEFRAGMENT: |
4165 | return f2fs_ioc_defragment(filp, arg); | |
4dd6f977 JK |
4166 | case F2FS_IOC_MOVE_RANGE: |
4167 | return f2fs_ioc_move_range(filp, arg); | |
e066b83c JK |
4168 | case F2FS_IOC_FLUSH_DEVICE: |
4169 | return f2fs_ioc_flush_device(filp, arg); | |
e65ef207 JK |
4170 | case F2FS_IOC_GET_FEATURES: |
4171 | return f2fs_ioc_get_features(filp, arg); | |
1ad71a27 JK |
4172 | case F2FS_IOC_GET_PIN_FILE: |
4173 | return f2fs_ioc_get_pin_file(filp, arg); | |
4174 | case F2FS_IOC_SET_PIN_FILE: | |
4175 | return f2fs_ioc_set_pin_file(filp, arg); | |
c4020b2d CY |
4176 | case F2FS_IOC_PRECACHE_EXTENTS: |
4177 | return f2fs_ioc_precache_extents(filp, arg); | |
04f0b2ea QS |
4178 | case F2FS_IOC_RESIZE_FS: |
4179 | return f2fs_ioc_resize_fs(filp, arg); | |
95ae251f EB |
4180 | case FS_IOC_ENABLE_VERITY: |
4181 | return f2fs_ioc_enable_verity(filp, arg); | |
4182 | case FS_IOC_MEASURE_VERITY: | |
4183 | return f2fs_ioc_measure_verity(filp, arg); | |
e17fe657 EB |
4184 | case FS_IOC_READ_VERITY_METADATA: |
4185 | return f2fs_ioc_read_verity_metadata(filp, arg); | |
3357af8f EB |
4186 | case FS_IOC_GETFSLABEL: |
4187 | return f2fs_ioc_getfslabel(filp, arg); | |
4188 | case FS_IOC_SETFSLABEL: | |
4189 | return f2fs_ioc_setfslabel(filp, arg); | |
439dfb10 CY |
4190 | case F2FS_IOC_GET_COMPRESS_BLOCKS: |
4191 | return f2fs_get_compress_blocks(filp, arg); | |
ef8d563f CY |
4192 | case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: |
4193 | return f2fs_release_compress_blocks(filp, arg); | |
c75488fb CY |
4194 | case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: |
4195 | return f2fs_reserve_compress_blocks(filp, arg); | |
9af84648 DJ |
4196 | case F2FS_IOC_SEC_TRIM_FILE: |
4197 | return f2fs_sec_trim_file(filp, arg); | |
9e2a5f8c DJ |
4198 | case F2FS_IOC_GET_COMPRESS_OPTION: |
4199 | return f2fs_ioc_get_compress_option(filp, arg); | |
e1e8debe DJ |
4200 | case F2FS_IOC_SET_COMPRESS_OPTION: |
4201 | return f2fs_ioc_set_compress_option(filp, arg); | |
5fdb322f DJ |
4202 | case F2FS_IOC_DECOMPRESS_FILE: |
4203 | return f2fs_ioc_decompress_file(filp, arg); | |
4204 | case F2FS_IOC_COMPRESS_FILE: | |
4205 | return f2fs_ioc_compress_file(filp, arg); | |
fbfa2cc5 JK |
4206 | default: |
4207 | return -ENOTTY; | |
4208 | } | |
4209 | } | |
4210 | ||
34178b1b CY |
4211 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
4212 | { | |
4213 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp))))) | |
4214 | return -EIO; | |
4215 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp)))) | |
4216 | return -ENOSPC; | |
4217 | ||
4218 | return __f2fs_ioctl(filp, cmd, arg); | |
4219 | } | |
4220 | ||
4c8ff709 CY |
4221 | static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter) |
4222 | { | |
4223 | struct file *file = iocb->ki_filp; | |
4224 | struct inode *inode = file_inode(file); | |
8b83ac81 | 4225 | int ret; |
4c8ff709 CY |
4226 | |
4227 | if (!f2fs_is_compress_backend_ready(inode)) | |
4228 | return -EOPNOTSUPP; | |
4229 | ||
8b83ac81 CY |
4230 | ret = generic_file_read_iter(iocb, iter); |
4231 | ||
4232 | if (ret > 0) | |
4233 | f2fs_update_iostat(F2FS_I_SB(inode), APP_READ_IO, ret); | |
4234 | ||
4235 | return ret; | |
4c8ff709 CY |
4236 | } |
4237 | ||
fcc85a4d JK |
4238 | static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) |
4239 | { | |
b439b103 JK |
4240 | struct file *file = iocb->ki_filp; |
4241 | struct inode *inode = file_inode(file); | |
4242 | ssize_t ret; | |
fcc85a4d | 4243 | |
126ce721 CY |
4244 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { |
4245 | ret = -EIO; | |
4246 | goto out; | |
4247 | } | |
1f227a3e | 4248 | |
7bd29358 CY |
4249 | if (!f2fs_is_compress_backend_ready(inode)) { |
4250 | ret = -EOPNOTSUPP; | |
4251 | goto out; | |
4252 | } | |
4c8ff709 | 4253 | |
cb8434f1 GR |
4254 | if (iocb->ki_flags & IOCB_NOWAIT) { |
4255 | if (!inode_trylock(inode)) { | |
126ce721 CY |
4256 | ret = -EAGAIN; |
4257 | goto out; | |
4258 | } | |
cb8434f1 | 4259 | } else { |
b91050a8 HL |
4260 | inode_lock(inode); |
4261 | } | |
4262 | ||
e0fcd015 CY |
4263 | if (unlikely(IS_IMMUTABLE(inode))) { |
4264 | ret = -EPERM; | |
4265 | goto unlock; | |
4266 | } | |
4267 | ||
c6140415 JK |
4268 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
4269 | ret = -EPERM; | |
4270 | goto unlock; | |
4271 | } | |
4272 | ||
b439b103 JK |
4273 | ret = generic_write_checks(iocb, from); |
4274 | if (ret > 0) { | |
dc7a10dd JK |
4275 | bool preallocated = false; |
4276 | size_t target_size = 0; | |
dc91de78 | 4277 | int err; |
a7de6086 | 4278 | |
dc91de78 JK |
4279 | if (iov_iter_fault_in_readable(from, iov_iter_count(from))) |
4280 | set_inode_flag(inode, FI_NO_PREALLOC); | |
a7de6086 | 4281 | |
d5d5f0c0 CX |
4282 | if ((iocb->ki_flags & IOCB_NOWAIT)) { |
4283 | if (!f2fs_overwrite_io(inode, iocb->ki_pos, | |
b91050a8 | 4284 | iov_iter_count(from)) || |
d5d5f0c0 CX |
4285 | f2fs_has_inline_data(inode) || |
4286 | f2fs_force_buffered_io(inode, iocb, from)) { | |
4287 | clear_inode_flag(inode, FI_NO_PREALLOC); | |
4288 | inode_unlock(inode); | |
4289 | ret = -EAGAIN; | |
4290 | goto out; | |
4291 | } | |
47501f87 JK |
4292 | goto write; |
4293 | } | |
dc7a10dd | 4294 | |
47501f87 JK |
4295 | if (is_inode_flag_set(inode, FI_NO_PREALLOC)) |
4296 | goto write; | |
4297 | ||
4298 | if (iocb->ki_flags & IOCB_DIRECT) { | |
4299 | /* | |
4300 | * Convert inline data for Direct I/O before entering | |
4301 | * f2fs_direct_IO(). | |
4302 | */ | |
4303 | err = f2fs_convert_inline_inode(inode); | |
4304 | if (err) | |
4305 | goto out_err; | |
4306 | /* | |
4307 | * If force_buffere_io() is true, we have to allocate | |
4308 | * blocks all the time, since f2fs_direct_IO will fall | |
4309 | * back to buffered IO. | |
4310 | */ | |
4311 | if (!f2fs_force_buffered_io(inode, iocb, from) && | |
6de8687c | 4312 | f2fs_lfs_mode(F2FS_I_SB(inode))) |
47501f87 JK |
4313 | goto write; |
4314 | } | |
4315 | preallocated = true; | |
4316 | target_size = iocb->ki_pos + iov_iter_count(from); | |
4317 | ||
4318 | err = f2fs_preallocate_blocks(iocb, from); | |
4319 | if (err) { | |
4320 | out_err: | |
4321 | clear_inode_flag(inode, FI_NO_PREALLOC); | |
4322 | inode_unlock(inode); | |
4323 | ret = err; | |
4324 | goto out; | |
9dfa1baf | 4325 | } |
47501f87 | 4326 | write: |
a7de6086 | 4327 | ret = __generic_file_write_iter(iocb, from); |
dc91de78 | 4328 | clear_inode_flag(inode, FI_NO_PREALLOC); |
b0af6d49 | 4329 | |
dc7a10dd | 4330 | /* if we couldn't write data, we should deallocate blocks. */ |
a303b0ac CY |
4331 | if (preallocated && i_size_read(inode) < target_size) { |
4332 | down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); | |
edc6d01b | 4333 | filemap_invalidate_lock(inode->i_mapping); |
dc7a10dd | 4334 | f2fs_truncate(inode); |
edc6d01b | 4335 | filemap_invalidate_unlock(inode->i_mapping); |
a303b0ac CY |
4336 | up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
4337 | } | |
dc7a10dd | 4338 | |
b0af6d49 CY |
4339 | if (ret > 0) |
4340 | f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret); | |
b439b103 | 4341 | } |
e0fcd015 | 4342 | unlock: |
b439b103 | 4343 | inode_unlock(inode); |
126ce721 CY |
4344 | out: |
4345 | trace_f2fs_file_write_iter(inode, iocb->ki_pos, | |
4346 | iov_iter_count(from), ret); | |
e2592217 CH |
4347 | if (ret > 0) |
4348 | ret = generic_write_sync(iocb, ret); | |
b439b103 | 4349 | return ret; |
fcc85a4d JK |
4350 | } |
4351 | ||
0f6b56ec DJ |
4352 | static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len, |
4353 | int advice) | |
4354 | { | |
4355 | struct inode *inode; | |
4356 | struct address_space *mapping; | |
4357 | struct backing_dev_info *bdi; | |
4358 | ||
4359 | if (advice == POSIX_FADV_SEQUENTIAL) { | |
4360 | inode = file_inode(filp); | |
4361 | if (S_ISFIFO(inode->i_mode)) | |
4362 | return -ESPIPE; | |
4363 | ||
4364 | mapping = filp->f_mapping; | |
4365 | if (!mapping || len < 0) | |
4366 | return -EINVAL; | |
4367 | ||
4368 | bdi = inode_to_bdi(mapping->host); | |
4369 | filp->f_ra.ra_pages = bdi->ra_pages * | |
4370 | F2FS_I_SB(inode)->seq_file_ra_mul; | |
4371 | spin_lock(&filp->f_lock); | |
4372 | filp->f_mode &= ~FMODE_RANDOM; | |
4373 | spin_unlock(&filp->f_lock); | |
4374 | return 0; | |
4375 | } | |
4376 | ||
4377 | return generic_fadvise(filp, offset, len, advice); | |
4378 | } | |
4379 | ||
e9750824 | 4380 | #ifdef CONFIG_COMPAT |
34178b1b CY |
4381 | struct compat_f2fs_gc_range { |
4382 | u32 sync; | |
4383 | compat_u64 start; | |
4384 | compat_u64 len; | |
4385 | }; | |
4386 | #define F2FS_IOC32_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11,\ | |
4387 | struct compat_f2fs_gc_range) | |
4388 | ||
4389 | static int f2fs_compat_ioc_gc_range(struct file *file, unsigned long arg) | |
4390 | { | |
4391 | struct compat_f2fs_gc_range __user *urange; | |
4392 | struct f2fs_gc_range range; | |
4393 | int err; | |
4394 | ||
4395 | urange = compat_ptr(arg); | |
4396 | err = get_user(range.sync, &urange->sync); | |
4397 | err |= get_user(range.start, &urange->start); | |
4398 | err |= get_user(range.len, &urange->len); | |
4399 | if (err) | |
4400 | return -EFAULT; | |
4401 | ||
4402 | return __f2fs_ioc_gc_range(file, &range); | |
4403 | } | |
4404 | ||
4405 | struct compat_f2fs_move_range { | |
4406 | u32 dst_fd; | |
4407 | compat_u64 pos_in; | |
4408 | compat_u64 pos_out; | |
4409 | compat_u64 len; | |
4410 | }; | |
4411 | #define F2FS_IOC32_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ | |
4412 | struct compat_f2fs_move_range) | |
4413 | ||
4414 | static int f2fs_compat_ioc_move_range(struct file *file, unsigned long arg) | |
4415 | { | |
4416 | struct compat_f2fs_move_range __user *urange; | |
4417 | struct f2fs_move_range range; | |
4418 | int err; | |
4419 | ||
4420 | urange = compat_ptr(arg); | |
4421 | err = get_user(range.dst_fd, &urange->dst_fd); | |
4422 | err |= get_user(range.pos_in, &urange->pos_in); | |
4423 | err |= get_user(range.pos_out, &urange->pos_out); | |
4424 | err |= get_user(range.len, &urange->len); | |
4425 | if (err) | |
4426 | return -EFAULT; | |
4427 | ||
4428 | return __f2fs_ioc_move_range(file, &range); | |
4429 | } | |
4430 | ||
e9750824 NJ |
4431 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
4432 | { | |
34178b1b CY |
4433 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file))))) |
4434 | return -EIO; | |
4435 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(file)))) | |
4436 | return -ENOSPC; | |
4437 | ||
e9750824 | 4438 | switch (cmd) { |
3357af8f EB |
4439 | case FS_IOC32_GETVERSION: |
4440 | cmd = FS_IOC_GETVERSION; | |
04ef4b62 | 4441 | break; |
34178b1b CY |
4442 | case F2FS_IOC32_GARBAGE_COLLECT_RANGE: |
4443 | return f2fs_compat_ioc_gc_range(file, arg); | |
4444 | case F2FS_IOC32_MOVE_RANGE: | |
4445 | return f2fs_compat_ioc_move_range(file, arg); | |
04ef4b62 CY |
4446 | case F2FS_IOC_START_ATOMIC_WRITE: |
4447 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: | |
4448 | case F2FS_IOC_START_VOLATILE_WRITE: | |
4449 | case F2FS_IOC_RELEASE_VOLATILE_WRITE: | |
4450 | case F2FS_IOC_ABORT_VOLATILE_WRITE: | |
4451 | case F2FS_IOC_SHUTDOWN: | |
314999dc | 4452 | case FITRIM: |
3357af8f EB |
4453 | case FS_IOC_SET_ENCRYPTION_POLICY: |
4454 | case FS_IOC_GET_ENCRYPTION_PWSALT: | |
4455 | case FS_IOC_GET_ENCRYPTION_POLICY: | |
8ce589c7 EB |
4456 | case FS_IOC_GET_ENCRYPTION_POLICY_EX: |
4457 | case FS_IOC_ADD_ENCRYPTION_KEY: | |
4458 | case FS_IOC_REMOVE_ENCRYPTION_KEY: | |
4459 | case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: | |
4460 | case FS_IOC_GET_ENCRYPTION_KEY_STATUS: | |
ee446e1a | 4461 | case FS_IOC_GET_ENCRYPTION_NONCE: |
04ef4b62 CY |
4462 | case F2FS_IOC_GARBAGE_COLLECT: |
4463 | case F2FS_IOC_WRITE_CHECKPOINT: | |
4464 | case F2FS_IOC_DEFRAGMENT: | |
e066b83c | 4465 | case F2FS_IOC_FLUSH_DEVICE: |
e65ef207 | 4466 | case F2FS_IOC_GET_FEATURES: |
1ad71a27 JK |
4467 | case F2FS_IOC_GET_PIN_FILE: |
4468 | case F2FS_IOC_SET_PIN_FILE: | |
c4020b2d | 4469 | case F2FS_IOC_PRECACHE_EXTENTS: |
04f0b2ea | 4470 | case F2FS_IOC_RESIZE_FS: |
95ae251f EB |
4471 | case FS_IOC_ENABLE_VERITY: |
4472 | case FS_IOC_MEASURE_VERITY: | |
e17fe657 | 4473 | case FS_IOC_READ_VERITY_METADATA: |
3357af8f EB |
4474 | case FS_IOC_GETFSLABEL: |
4475 | case FS_IOC_SETFSLABEL: | |
439dfb10 | 4476 | case F2FS_IOC_GET_COMPRESS_BLOCKS: |
ef8d563f | 4477 | case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: |
c75488fb | 4478 | case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: |
9af84648 | 4479 | case F2FS_IOC_SEC_TRIM_FILE: |
9e2a5f8c | 4480 | case F2FS_IOC_GET_COMPRESS_OPTION: |
e1e8debe | 4481 | case F2FS_IOC_SET_COMPRESS_OPTION: |
5fdb322f DJ |
4482 | case F2FS_IOC_DECOMPRESS_FILE: |
4483 | case F2FS_IOC_COMPRESS_FILE: | |
4dd6f977 | 4484 | break; |
e9750824 NJ |
4485 | default: |
4486 | return -ENOIOCTLCMD; | |
4487 | } | |
34178b1b | 4488 | return __f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg)); |
e9750824 NJ |
4489 | } |
4490 | #endif | |
4491 | ||
fbfa2cc5 | 4492 | const struct file_operations f2fs_file_operations = { |
267378d4 | 4493 | .llseek = f2fs_llseek, |
4c8ff709 | 4494 | .read_iter = f2fs_file_read_iter, |
fcc85a4d JK |
4495 | .write_iter = f2fs_file_write_iter, |
4496 | .open = f2fs_file_open, | |
12662234 | 4497 | .release = f2fs_release_file, |
fbfa2cc5 | 4498 | .mmap = f2fs_file_mmap, |
7a10f017 | 4499 | .flush = f2fs_file_flush, |
fbfa2cc5 JK |
4500 | .fsync = f2fs_sync_file, |
4501 | .fallocate = f2fs_fallocate, | |
4502 | .unlocked_ioctl = f2fs_ioctl, | |
e9750824 NJ |
4503 | #ifdef CONFIG_COMPAT |
4504 | .compat_ioctl = f2fs_compat_ioctl, | |
4505 | #endif | |
fbfa2cc5 | 4506 | .splice_read = generic_file_splice_read, |
8d020765 | 4507 | .splice_write = iter_file_splice_write, |
0f6b56ec | 4508 | .fadvise = f2fs_file_fadvise, |
fbfa2cc5 | 4509 | }; |