Commit | Line | Data |
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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> |
a1e09b03 | 27 | #include <linux/iomap.h> |
fbfa2cc5 JK |
28 | |
29 | #include "f2fs.h" | |
30 | #include "node.h" | |
31 | #include "segment.h" | |
32 | #include "xattr.h" | |
33 | #include "acl.h" | |
c1c1b583 | 34 | #include "gc.h" |
52118743 | 35 | #include "iostat.h" |
a2a4a7e4 | 36 | #include <trace/events/f2fs.h> |
fa4320ce | 37 | #include <uapi/linux/f2fs.h> |
fbfa2cc5 | 38 | |
ea4d479b | 39 | static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf) |
5a3a2d83 QS |
40 | { |
41 | struct inode *inode = file_inode(vmf->vma->vm_file); | |
eb70d5a6 | 42 | vm_flags_t flags = vmf->vma->vm_flags; |
ea4d479b | 43 | vm_fault_t ret; |
5a3a2d83 | 44 | |
ea4d479b | 45 | ret = filemap_fault(vmf); |
bb34cc6c | 46 | if (ret & VM_FAULT_LOCKED) |
34a23525 CY |
47 | f2fs_update_iostat(F2FS_I_SB(inode), inode, |
48 | APP_MAPPED_READ_IO, F2FS_BLKSIZE); | |
8b83ac81 | 49 | |
eb70d5a6 | 50 | trace_f2fs_filemap_fault(inode, vmf->pgoff, flags, ret); |
d7648343 | 51 | |
ea4d479b | 52 | return ret; |
5a3a2d83 QS |
53 | } |
54 | ||
ea4d479b | 55 | static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf) |
fbfa2cc5 JK |
56 | { |
57 | struct page *page = vmf->page; | |
11bac800 | 58 | struct inode *inode = file_inode(vmf->vma->vm_file); |
4081363f | 59 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
bdf03299 | 60 | struct dnode_of_data dn; |
3fdd89b4 | 61 | bool need_alloc = !f2fs_is_pinned_file(inode); |
4c8ff709 | 62 | int err = 0; |
87f3afd3 | 63 | vm_fault_t ret; |
fbfa2cc5 | 64 | |
e0fcd015 CY |
65 | if (unlikely(IS_IMMUTABLE(inode))) |
66 | return VM_FAULT_SIGBUS; | |
67 | ||
87f3afd3 CY |
68 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
69 | err = -EIO; | |
70 | goto out; | |
71 | } | |
c6140415 | 72 | |
1f227a3e JK |
73 | if (unlikely(f2fs_cp_error(sbi))) { |
74 | err = -EIO; | |
87f3afd3 | 75 | goto out; |
1f227a3e JK |
76 | } |
77 | ||
00e09c0b CY |
78 | if (!f2fs_is_checkpoint_ready(sbi)) { |
79 | err = -ENOSPC; | |
87f3afd3 | 80 | goto out; |
00e09c0b | 81 | } |
1f227a3e | 82 | |
c8e43d55 CY |
83 | err = f2fs_convert_inline_inode(inode); |
84 | if (err) | |
87f3afd3 | 85 | goto out; |
c8e43d55 | 86 | |
4c8ff709 CY |
87 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
88 | if (f2fs_compressed_file(inode)) { | |
89 | int ret = f2fs_is_compressed_cluster(inode, page->index); | |
90 | ||
91 | if (ret < 0) { | |
92 | err = ret; | |
87f3afd3 | 93 | goto out; |
4c8ff709 | 94 | } else if (ret) { |
4c8ff709 CY |
95 | need_alloc = false; |
96 | } | |
97 | } | |
98 | #endif | |
bdf03299 | 99 | /* should do out of any locked page */ |
4c8ff709 CY |
100 | if (need_alloc) |
101 | f2fs_balance_fs(sbi, true); | |
bdf03299 | 102 | |
fbfa2cc5 | 103 | sb_start_pagefault(inode->i_sb); |
b3d208f9 JK |
104 | |
105 | f2fs_bug_on(sbi, f2fs_has_inline_data(inode)); | |
b067ba1f | 106 | |
11bac800 | 107 | file_update_time(vmf->vma->vm_file); |
edc6d01b | 108 | filemap_invalidate_lock_shared(inode->i_mapping); |
fbfa2cc5 | 109 | lock_page(page); |
6bacf52f | 110 | if (unlikely(page->mapping != inode->i_mapping || |
9851e6e1 | 111 | page_offset(page) > i_size_read(inode) || |
6bacf52f | 112 | !PageUptodate(page))) { |
fbfa2cc5 JK |
113 | unlock_page(page); |
114 | err = -EFAULT; | |
5a3a2d83 | 115 | goto out_sem; |
fbfa2cc5 JK |
116 | } |
117 | ||
3fdd89b4 | 118 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4c8ff709 CY |
119 | if (need_alloc) { |
120 | /* block allocation */ | |
cf342d3b | 121 | err = f2fs_get_block_locked(&dn, page->index); |
3fdd89b4 | 122 | } else { |
06c7540f CY |
123 | err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE); |
124 | f2fs_put_dnode(&dn); | |
3fdd89b4 DJ |
125 | if (f2fs_is_pinned_file(inode) && |
126 | !__is_valid_data_blkaddr(dn.data_blkaddr)) | |
127 | err = -EIO; | |
06c7540f | 128 | } |
3fdd89b4 | 129 | |
06c7540f CY |
130 | if (err) { |
131 | unlock_page(page); | |
132 | goto out_sem; | |
39a86958 CY |
133 | } |
134 | ||
bae0ee7a | 135 | f2fs_wait_on_page_writeback(page, DATA, false, true); |
39a86958 CY |
136 | |
137 | /* wait for GCed page writeback via META_MAPPING */ | |
138 | f2fs_wait_on_block_writeback(inode, dn.data_blkaddr); | |
139 | ||
fbfa2cc5 JK |
140 | /* |
141 | * check to see if the page is mapped already (no holes) | |
142 | */ | |
143 | if (PageMappedToDisk(page)) | |
39a86958 | 144 | goto out_sem; |
fbfa2cc5 JK |
145 | |
146 | /* page is wholly or partially inside EOF */ | |
09cbfeaf | 147 | if (((loff_t)(page->index + 1) << PAGE_SHIFT) > |
9edcdabf | 148 | i_size_read(inode)) { |
193bea1d | 149 | loff_t offset; |
f11e98bd | 150 | |
09cbfeaf KS |
151 | offset = i_size_read(inode) & ~PAGE_MASK; |
152 | zero_user_segment(page, offset, PAGE_SIZE); | |
fbfa2cc5 JK |
153 | } |
154 | set_page_dirty(page); | |
fbfa2cc5 | 155 | |
34a23525 | 156 | f2fs_update_iostat(sbi, inode, APP_MAPPED_IO, F2FS_BLKSIZE); |
c75f2feb | 157 | f2fs_update_time(sbi, REQ_TIME); |
b0af6d49 | 158 | |
5a3a2d83 | 159 | out_sem: |
edc6d01b | 160 | filemap_invalidate_unlock_shared(inode->i_mapping); |
39a86958 | 161 | |
fbfa2cc5 | 162 | sb_end_pagefault(inode->i_sb); |
87f3afd3 CY |
163 | out: |
164 | ret = vmf_fs_error(err); | |
165 | ||
166 | trace_f2fs_vm_page_mkwrite(inode, page->index, vmf->vma->vm_flags, ret); | |
167 | return ret; | |
fbfa2cc5 JK |
168 | } |
169 | ||
170 | static const struct vm_operations_struct f2fs_file_vm_ops = { | |
5a3a2d83 | 171 | .fault = f2fs_filemap_fault, |
f1820361 | 172 | .map_pages = filemap_map_pages, |
692bb55d | 173 | .page_mkwrite = f2fs_vm_page_mkwrite, |
fbfa2cc5 JK |
174 | }; |
175 | ||
354a3399 JK |
176 | static int get_parent_ino(struct inode *inode, nid_t *pino) |
177 | { | |
178 | struct dentry *dentry; | |
179 | ||
84c9c2de EB |
180 | /* |
181 | * Make sure to get the non-deleted alias. The alias associated with | |
182 | * the open file descriptor being fsync()'ed may be deleted already. | |
183 | */ | |
184 | dentry = d_find_alias(inode); | |
354a3399 JK |
185 | if (!dentry) |
186 | return 0; | |
187 | ||
f0947e5c JK |
188 | *pino = parent_ino(dentry); |
189 | dput(dentry); | |
354a3399 JK |
190 | return 1; |
191 | } | |
192 | ||
a5fd5050 | 193 | static inline enum cp_reason_type need_do_checkpoint(struct inode *inode) |
9d1589ef | 194 | { |
4081363f | 195 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
a5fd5050 | 196 | enum cp_reason_type cp_reason = CP_NO_NEEDED; |
9d1589ef | 197 | |
a5fd5050 CY |
198 | if (!S_ISREG(inode->i_mode)) |
199 | cp_reason = CP_NON_REGULAR; | |
4c8ff709 CY |
200 | else if (f2fs_compressed_file(inode)) |
201 | cp_reason = CP_COMPRESSED; | |
a5fd5050 CY |
202 | else if (inode->i_nlink != 1) |
203 | cp_reason = CP_HARDLINK; | |
bbf156f7 | 204 | else if (is_sbi_flag_set(sbi, SBI_NEED_CP)) |
a5fd5050 | 205 | cp_reason = CP_SB_NEED_CP; |
9d1589ef | 206 | else if (file_wrong_pino(inode)) |
a5fd5050 | 207 | cp_reason = CP_WRONG_PINO; |
4d57b86d | 208 | else if (!f2fs_space_for_roll_forward(sbi)) |
a5fd5050 | 209 | cp_reason = CP_NO_SPC_ROLL; |
4d57b86d | 210 | else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino)) |
a5fd5050 | 211 | cp_reason = CP_NODE_NEED_CP; |
d5053a34 | 212 | else if (test_opt(sbi, FASTBOOT)) |
a5fd5050 | 213 | cp_reason = CP_FASTBOOT_MODE; |
63189b78 | 214 | else if (F2FS_OPTION(sbi).active_logs == 2) |
a5fd5050 | 215 | cp_reason = CP_SPEC_LOG_NUM; |
63189b78 | 216 | else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT && |
4d57b86d CY |
217 | f2fs_need_dentry_mark(sbi, inode->i_ino) && |
218 | f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino, | |
219 | TRANS_DIR_INO)) | |
0a007b97 | 220 | cp_reason = CP_RECOVER_DIR; |
9d1589ef | 221 | |
a5fd5050 | 222 | return cp_reason; |
9d1589ef CY |
223 | } |
224 | ||
9c7bb702 CL |
225 | static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino) |
226 | { | |
227 | struct page *i = find_get_page(NODE_MAPPING(sbi), ino); | |
228 | bool ret = false; | |
229 | /* But we need to avoid that there are some inode updates */ | |
4d57b86d | 230 | if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino)) |
9c7bb702 CL |
231 | ret = true; |
232 | f2fs_put_page(i, 0); | |
233 | return ret; | |
234 | } | |
235 | ||
51455b19 CL |
236 | static void try_to_fix_pino(struct inode *inode) |
237 | { | |
238 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
239 | nid_t pino; | |
240 | ||
e4544b63 | 241 | f2fs_down_write(&fi->i_sem); |
51455b19 CL |
242 | if (file_wrong_pino(inode) && inode->i_nlink == 1 && |
243 | get_parent_ino(inode, &pino)) { | |
205b9822 | 244 | f2fs_i_pino_write(inode, pino); |
51455b19 | 245 | file_got_pino(inode); |
51455b19 | 246 | } |
e4544b63 | 247 | f2fs_up_write(&fi->i_sem); |
51455b19 CL |
248 | } |
249 | ||
608514de JK |
250 | static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end, |
251 | int datasync, bool atomic) | |
fbfa2cc5 JK |
252 | { |
253 | struct inode *inode = file->f_mapping->host; | |
4081363f | 254 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
2403c155 | 255 | nid_t ino = inode->i_ino; |
fbfa2cc5 | 256 | int ret = 0; |
a5fd5050 | 257 | enum cp_reason_type cp_reason = 0; |
fbfa2cc5 | 258 | struct writeback_control wbc = { |
c81bf1c8 | 259 | .sync_mode = WB_SYNC_ALL, |
fbfa2cc5 JK |
260 | .nr_to_write = LONG_MAX, |
261 | .for_reclaim = 0, | |
262 | }; | |
50fa53ec | 263 | unsigned int seq_id = 0; |
fbfa2cc5 | 264 | |
dddd3d65 | 265 | if (unlikely(f2fs_readonly(inode->i_sb))) |
1fa95b0b NJ |
266 | return 0; |
267 | ||
a2a4a7e4 | 268 | trace_f2fs_sync_file_enter(inode); |
ea1aa12c | 269 | |
b61ac5b7 YH |
270 | if (S_ISDIR(inode->i_mode)) |
271 | goto go_write; | |
272 | ||
ea1aa12c | 273 | /* if fdatasync is triggered, let's do in-place-update */ |
c46a155b | 274 | if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks) |
91942321 | 275 | set_inode_flag(inode, FI_NEED_IPU); |
3b49c9a1 | 276 | ret = file_write_and_wait_range(file, start, end); |
91942321 | 277 | clear_inode_flag(inode, FI_NEED_IPU); |
c1ce1b02 | 278 | |
dddd3d65 | 279 | if (ret || is_sbi_flag_set(sbi, SBI_CP_DISABLED)) { |
a5fd5050 | 280 | trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret); |
fbfa2cc5 | 281 | return ret; |
a2a4a7e4 | 282 | } |
fbfa2cc5 | 283 | |
9c7bb702 | 284 | /* if the inode is dirty, let's recover all the time */ |
281518c6 | 285 | if (!f2fs_skip_inode_update(inode, datasync)) { |
2286c020 | 286 | f2fs_write_inode(inode, NULL); |
9c7bb702 CL |
287 | goto go_write; |
288 | } | |
289 | ||
6d99ba41 JK |
290 | /* |
291 | * if there is no written data, don't waste time to write recovery info. | |
292 | */ | |
91942321 | 293 | if (!is_inode_flag_set(inode, FI_APPEND_WRITE) && |
4d57b86d | 294 | !f2fs_exist_written_data(sbi, ino, APPEND_INO)) { |
19c9c466 | 295 | |
9c7bb702 CL |
296 | /* it may call write_inode just prior to fsync */ |
297 | if (need_inode_page_update(sbi, ino)) | |
19c9c466 | 298 | goto go_write; |
19c9c466 | 299 | |
91942321 | 300 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE) || |
4d57b86d | 301 | f2fs_exist_written_data(sbi, ino, UPDATE_INO)) |
6d99ba41 JK |
302 | goto flush_out; |
303 | goto out; | |
27879915 CY |
304 | } else { |
305 | /* | |
306 | * for OPU case, during fsync(), node can be persisted before | |
307 | * data when lower device doesn't support write barrier, result | |
308 | * in data corruption after SPO. | |
146949de | 309 | * So for strict fsync mode, force to use atomic write semantics |
27879915 CY |
310 | * to keep write order in between data/node and last node to |
311 | * avoid potential data corruption. | |
312 | */ | |
313 | if (F2FS_OPTION(sbi).fsync_mode == | |
314 | FSYNC_MODE_STRICT && !atomic) | |
315 | atomic = true; | |
6d99ba41 | 316 | } |
19c9c466 | 317 | go_write: |
e5d2385e JK |
318 | /* |
319 | * Both of fdatasync() and fsync() are able to be recovered from | |
320 | * sudden-power-off. | |
321 | */ | |
e4544b63 | 322 | f2fs_down_read(&F2FS_I(inode)->i_sem); |
a5fd5050 | 323 | cp_reason = need_do_checkpoint(inode); |
e4544b63 | 324 | f2fs_up_read(&F2FS_I(inode)->i_sem); |
d928bfbf | 325 | |
a5fd5050 | 326 | if (cp_reason) { |
fbfa2cc5 JK |
327 | /* all the dirty node pages should be flushed for POR */ |
328 | ret = f2fs_sync_fs(inode->i_sb, 1); | |
d928bfbf | 329 | |
51455b19 CL |
330 | /* |
331 | * We've secured consistency through sync_fs. Following pino | |
332 | * will be used only for fsynced inodes after checkpoint. | |
333 | */ | |
334 | try_to_fix_pino(inode); | |
91942321 JK |
335 | clear_inode_flag(inode, FI_APPEND_WRITE); |
336 | clear_inode_flag(inode, FI_UPDATE_WRITE); | |
51455b19 CL |
337 | goto out; |
338 | } | |
88bd02c9 | 339 | sync_nodes: |
c29fd0c0 | 340 | atomic_inc(&sbi->wb_sync_req[NODE]); |
50fa53ec | 341 | ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id); |
c29fd0c0 | 342 | atomic_dec(&sbi->wb_sync_req[NODE]); |
c267ec15 JK |
343 | if (ret) |
344 | goto out; | |
51455b19 | 345 | |
871f599f | 346 | /* if cp_error was enabled, we should avoid infinite loop */ |
6d5a1495 CY |
347 | if (unlikely(f2fs_cp_error(sbi))) { |
348 | ret = -EIO; | |
871f599f | 349 | goto out; |
6d5a1495 | 350 | } |
871f599f | 351 | |
4d57b86d | 352 | if (f2fs_need_inode_block_update(sbi, ino)) { |
7c45729a | 353 | f2fs_mark_inode_dirty_sync(inode, true); |
51455b19 CL |
354 | f2fs_write_inode(inode, NULL); |
355 | goto sync_nodes; | |
fbfa2cc5 | 356 | } |
51455b19 | 357 | |
b6a245eb JK |
358 | /* |
359 | * If it's atomic_write, it's just fine to keep write ordering. So | |
360 | * here we don't need to wait for node write completion, since we use | |
361 | * node chain which serializes node blocks. If one of node writes are | |
362 | * reordered, we can see simply broken chain, resulting in stopping | |
363 | * roll-forward recovery. It means we'll recover all or none node blocks | |
364 | * given fsync mark. | |
365 | */ | |
366 | if (!atomic) { | |
50fa53ec | 367 | ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id); |
b6a245eb JK |
368 | if (ret) |
369 | goto out; | |
370 | } | |
51455b19 CL |
371 | |
372 | /* once recovery info is written, don't need to tack this */ | |
4d57b86d | 373 | f2fs_remove_ino_entry(sbi, ino, APPEND_INO); |
91942321 | 374 | clear_inode_flag(inode, FI_APPEND_WRITE); |
51455b19 | 375 | flush_out: |
c550e25b JK |
376 | if ((!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER) || |
377 | (atomic && !test_opt(sbi, NOBARRIER) && f2fs_sb_has_blkzoned(sbi))) | |
39d787be | 378 | ret = f2fs_issue_flush(sbi, inode->i_ino); |
3f06252f | 379 | if (!ret) { |
4d57b86d | 380 | f2fs_remove_ino_entry(sbi, ino, UPDATE_INO); |
3f06252f | 381 | clear_inode_flag(inode, FI_UPDATE_WRITE); |
4d57b86d | 382 | f2fs_remove_ino_entry(sbi, ino, FLUSH_INO); |
3f06252f | 383 | } |
d0239e1b | 384 | f2fs_update_time(sbi, REQ_TIME); |
fbfa2cc5 | 385 | out: |
a5fd5050 | 386 | trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret); |
fbfa2cc5 JK |
387 | return ret; |
388 | } | |
389 | ||
608514de JK |
390 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) |
391 | { | |
1f227a3e JK |
392 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file))))) |
393 | return -EIO; | |
608514de JK |
394 | return f2fs_do_sync_file(file, start, end, datasync, false); |
395 | } | |
396 | ||
a94c7fde DJ |
397 | static bool __found_offset(struct address_space *mapping, |
398 | struct dnode_of_data *dn, pgoff_t index, int whence) | |
7f7670fe | 399 | { |
a94c7fde DJ |
400 | block_t blkaddr = f2fs_data_blkaddr(dn); |
401 | struct inode *inode = mapping->host; | |
402 | bool compressed_cluster = false; | |
403 | ||
404 | if (f2fs_compressed_file(inode)) { | |
405 | block_t first_blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
406 | ALIGN_DOWN(dn->ofs_in_node, F2FS_I(inode)->i_cluster_size)); | |
407 | ||
408 | compressed_cluster = first_blkaddr == COMPRESS_ADDR; | |
409 | } | |
410 | ||
7f7670fe JK |
411 | switch (whence) { |
412 | case SEEK_DATA: | |
4cb03fec MWO |
413 | if (__is_valid_data_blkaddr(blkaddr)) |
414 | return true; | |
415 | if (blkaddr == NEW_ADDR && | |
416 | xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY)) | |
7f7670fe | 417 | return true; |
a94c7fde DJ |
418 | if (compressed_cluster) |
419 | return true; | |
7f7670fe JK |
420 | break; |
421 | case SEEK_HOLE: | |
a94c7fde DJ |
422 | if (compressed_cluster) |
423 | return false; | |
7f7670fe JK |
424 | if (blkaddr == NULL_ADDR) |
425 | return true; | |
426 | break; | |
427 | } | |
428 | return false; | |
429 | } | |
430 | ||
267378d4 CY |
431 | static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence) |
432 | { | |
433 | struct inode *inode = file->f_mapping->host; | |
434 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
435 | struct dnode_of_data dn; | |
4cb03fec | 436 | pgoff_t pgofs, end_offset; |
7f7670fe JK |
437 | loff_t data_ofs = offset; |
438 | loff_t isize; | |
267378d4 CY |
439 | int err = 0; |
440 | ||
36062b91 | 441 | inode_lock_shared(inode); |
267378d4 CY |
442 | |
443 | isize = i_size_read(inode); | |
444 | if (offset >= isize) | |
445 | goto fail; | |
446 | ||
447 | /* handle inline data case */ | |
7a6e59d7 CY |
448 | if (f2fs_has_inline_data(inode)) { |
449 | if (whence == SEEK_HOLE) { | |
450 | data_ofs = isize; | |
451 | goto found; | |
452 | } else if (whence == SEEK_DATA) { | |
453 | data_ofs = offset; | |
454 | goto found; | |
455 | } | |
267378d4 CY |
456 | } |
457 | ||
09cbfeaf | 458 | pgofs = (pgoff_t)(offset >> PAGE_SHIFT); |
267378d4 | 459 | |
09cbfeaf | 460 | for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) { |
267378d4 | 461 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 462 | err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE); |
267378d4 CY |
463 | if (err && err != -ENOENT) { |
464 | goto fail; | |
465 | } else if (err == -ENOENT) { | |
e1c42045 | 466 | /* direct node does not exists */ |
267378d4 | 467 | if (whence == SEEK_DATA) { |
4d57b86d | 468 | pgofs = f2fs_get_next_page_offset(&dn, pgofs); |
267378d4 CY |
469 | continue; |
470 | } else { | |
471 | goto found; | |
472 | } | |
473 | } | |
474 | ||
81ca7350 | 475 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
267378d4 CY |
476 | |
477 | /* find data/hole in dnode block */ | |
478 | for (; dn.ofs_in_node < end_offset; | |
479 | dn.ofs_in_node++, pgofs++, | |
09cbfeaf | 480 | data_ofs = (loff_t)pgofs << PAGE_SHIFT) { |
267378d4 | 481 | block_t blkaddr; |
f11e98bd | 482 | |
a2ced1ce | 483 | blkaddr = f2fs_data_blkaddr(&dn); |
267378d4 | 484 | |
c9b60788 CY |
485 | if (__is_valid_data_blkaddr(blkaddr) && |
486 | !f2fs_is_valid_blkaddr(F2FS_I_SB(inode), | |
93770ab7 | 487 | blkaddr, DATA_GENERIC_ENHANCE)) { |
c9b60788 CY |
488 | f2fs_put_dnode(&dn); |
489 | goto fail; | |
490 | } | |
491 | ||
a94c7fde | 492 | if (__found_offset(file->f_mapping, &dn, |
e1da7872 | 493 | pgofs, whence)) { |
267378d4 CY |
494 | f2fs_put_dnode(&dn); |
495 | goto found; | |
496 | } | |
497 | } | |
498 | f2fs_put_dnode(&dn); | |
499 | } | |
500 | ||
501 | if (whence == SEEK_DATA) | |
502 | goto fail; | |
267378d4 | 503 | found: |
fe369bc8 JK |
504 | if (whence == SEEK_HOLE && data_ofs > isize) |
505 | data_ofs = isize; | |
36062b91 | 506 | inode_unlock_shared(inode); |
267378d4 CY |
507 | return vfs_setpos(file, data_ofs, maxbytes); |
508 | fail: | |
36062b91 | 509 | inode_unlock_shared(inode); |
267378d4 CY |
510 | return -ENXIO; |
511 | } | |
512 | ||
513 | static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence) | |
514 | { | |
515 | struct inode *inode = file->f_mapping->host; | |
516 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
517 | ||
6d1451bf CX |
518 | if (f2fs_compressed_file(inode)) |
519 | maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS; | |
520 | ||
267378d4 CY |
521 | switch (whence) { |
522 | case SEEK_SET: | |
523 | case SEEK_CUR: | |
524 | case SEEK_END: | |
525 | return generic_file_llseek_size(file, offset, whence, | |
526 | maxbytes, i_size_read(inode)); | |
527 | case SEEK_DATA: | |
528 | case SEEK_HOLE: | |
0b4c5afd JK |
529 | if (offset < 0) |
530 | return -ENXIO; | |
267378d4 CY |
531 | return f2fs_seek_block(file, offset, whence); |
532 | } | |
533 | ||
534 | return -EINVAL; | |
535 | } | |
536 | ||
fbfa2cc5 JK |
537 | static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) |
538 | { | |
b3d208f9 JK |
539 | struct inode *inode = file_inode(file); |
540 | ||
1f227a3e JK |
541 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
542 | return -EIO; | |
543 | ||
4c8ff709 CY |
544 | if (!f2fs_is_compress_backend_ready(inode)) |
545 | return -EOPNOTSUPP; | |
546 | ||
fbfa2cc5 JK |
547 | file_accessed(file); |
548 | vma->vm_ops = &f2fs_file_vm_ops; | |
b5ab3276 CY |
549 | |
550 | f2fs_down_read(&F2FS_I(inode)->i_sem); | |
4c8ff709 | 551 | set_inode_flag(inode, FI_MMAP_FILE); |
b5ab3276 CY |
552 | f2fs_up_read(&F2FS_I(inode)->i_sem); |
553 | ||
fbfa2cc5 JK |
554 | return 0; |
555 | } | |
556 | ||
fcc85a4d JK |
557 | static int f2fs_file_open(struct inode *inode, struct file *filp) |
558 | { | |
2e168c82 | 559 | int err = fscrypt_file_open(inode, filp); |
fcc85a4d | 560 | |
95ae251f EB |
561 | if (err) |
562 | return err; | |
563 | ||
4c8ff709 CY |
564 | if (!f2fs_is_compress_backend_ready(inode)) |
565 | return -EOPNOTSUPP; | |
566 | ||
95ae251f | 567 | err = fsverity_file_open(inode, filp); |
2e168c82 EB |
568 | if (err) |
569 | return err; | |
b91050a8 | 570 | |
38b57833 | 571 | filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC; |
94c8431f | 572 | filp->f_mode |= FMODE_CAN_ODIRECT; |
b91050a8 | 573 | |
0abd675e | 574 | return dquot_file_open(inode, filp); |
fcc85a4d JK |
575 | } |
576 | ||
4d57b86d | 577 | void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count) |
fbfa2cc5 | 578 | { |
4081363f | 579 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
19b2c30d | 580 | int nr_free = 0, ofs = dn->ofs_in_node, len = count; |
fbfa2cc5 | 581 | __le32 *addr; |
4c8ff709 CY |
582 | bool compressed_cluster = false; |
583 | int cluster_index = 0, valid_blocks = 0; | |
584 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
c2759eba | 585 | bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks); |
7a2af766 | 586 | |
2020cd48 | 587 | addr = get_dnode_addr(dn->inode, dn->node_page) + ofs; |
fbfa2cc5 | 588 | |
a5029a57 | 589 | /* Assumption: truncation starts with cluster */ |
4c8ff709 | 590 | for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) { |
fbfa2cc5 | 591 | block_t blkaddr = le32_to_cpu(*addr); |
f11e98bd | 592 | |
4c8ff709 CY |
593 | if (f2fs_compressed_file(dn->inode) && |
594 | !(cluster_index & (cluster_size - 1))) { | |
595 | if (compressed_cluster) | |
596 | f2fs_i_compr_blocks_update(dn->inode, | |
597 | valid_blocks, false); | |
598 | compressed_cluster = (blkaddr == COMPRESS_ADDR); | |
599 | valid_blocks = 0; | |
600 | } | |
601 | ||
fbfa2cc5 JK |
602 | if (blkaddr == NULL_ADDR) |
603 | continue; | |
604 | ||
59d0d4c3 | 605 | f2fs_set_data_blkaddr(dn, NULL_ADDR); |
c9b60788 | 606 | |
4c8ff709 | 607 | if (__is_valid_data_blkaddr(blkaddr)) { |
c7115e09 | 608 | if (time_to_inject(sbi, FAULT_BLKADDR_CONSISTENCE)) |
4c8ff709 | 609 | continue; |
c7115e09 | 610 | if (!f2fs_is_valid_blkaddr_raw(sbi, blkaddr, |
31f85ccc | 611 | DATA_GENERIC_ENHANCE)) |
c7115e09 | 612 | continue; |
4c8ff709 CY |
613 | if (compressed_cluster) |
614 | valid_blocks++; | |
615 | } | |
c9b60788 | 616 | |
4c8ff709 | 617 | f2fs_invalidate_blocks(sbi, blkaddr); |
ef8d563f CY |
618 | |
619 | if (!released || blkaddr != COMPRESS_ADDR) | |
620 | nr_free++; | |
fbfa2cc5 | 621 | } |
19b2c30d | 622 | |
4c8ff709 CY |
623 | if (compressed_cluster) |
624 | f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false); | |
625 | ||
fbfa2cc5 | 626 | if (nr_free) { |
19b2c30d CY |
627 | pgoff_t fofs; |
628 | /* | |
629 | * once we invalidate valid blkaddr in range [ofs, ofs + count], | |
630 | * we will invalidate all blkaddr in the whole range. | |
631 | */ | |
4d57b86d | 632 | fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page), |
81ca7350 | 633 | dn->inode) + ofs; |
e7547dac | 634 | f2fs_update_read_extent_cache_range(dn, fofs, 0, len); |
8c0ed062 | 635 | f2fs_update_age_extent_cache_range(dn, fofs, len); |
d7cc950b | 636 | dec_valid_block_count(sbi, dn->inode, nr_free); |
fbfa2cc5 JK |
637 | } |
638 | dn->ofs_in_node = ofs; | |
51dd6249 | 639 | |
d0239e1b | 640 | f2fs_update_time(sbi, REQ_TIME); |
51dd6249 NJ |
641 | trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid, |
642 | dn->ofs_in_node, nr_free); | |
fbfa2cc5 JK |
643 | } |
644 | ||
0bfcfcca | 645 | static int truncate_partial_data_page(struct inode *inode, u64 from, |
43f3eae1 | 646 | bool cache_only) |
fbfa2cc5 | 647 | { |
193bea1d | 648 | loff_t offset = from & (PAGE_SIZE - 1); |
09cbfeaf | 649 | pgoff_t index = from >> PAGE_SHIFT; |
43f3eae1 | 650 | struct address_space *mapping = inode->i_mapping; |
fbfa2cc5 JK |
651 | struct page *page; |
652 | ||
43f3eae1 | 653 | if (!offset && !cache_only) |
b3d208f9 | 654 | return 0; |
fbfa2cc5 | 655 | |
43f3eae1 | 656 | if (cache_only) { |
34b5d5c2 | 657 | page = find_lock_page(mapping, index); |
43f3eae1 JK |
658 | if (page && PageUptodate(page)) |
659 | goto truncate_out; | |
660 | f2fs_put_page(page, 1); | |
b3d208f9 | 661 | return 0; |
43f3eae1 | 662 | } |
fbfa2cc5 | 663 | |
4d57b86d | 664 | page = f2fs_get_lock_data_page(inode, index, true); |
43f3eae1 | 665 | if (IS_ERR(page)) |
a78aaa2c | 666 | return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page); |
43f3eae1 | 667 | truncate_out: |
bae0ee7a | 668 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
09cbfeaf | 669 | zero_user(page, offset, PAGE_SIZE - offset); |
a9bcf9bc JK |
670 | |
671 | /* An encrypted inode should have a key and truncate the last page. */ | |
62230e0d | 672 | f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode)); |
a9bcf9bc | 673 | if (!cache_only) |
0bfcfcca | 674 | set_page_dirty(page); |
fbfa2cc5 | 675 | f2fs_put_page(page, 1); |
b3d208f9 | 676 | return 0; |
fbfa2cc5 JK |
677 | } |
678 | ||
3265d3db | 679 | int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock) |
fbfa2cc5 | 680 | { |
4081363f | 681 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
682 | struct dnode_of_data dn; |
683 | pgoff_t free_from; | |
9ffe0fb5 | 684 | int count = 0, err = 0; |
b3d208f9 | 685 | struct page *ipage; |
0bfcfcca | 686 | bool truncate_page = false; |
fbfa2cc5 | 687 | |
51dd6249 NJ |
688 | trace_f2fs_truncate_blocks_enter(inode, from); |
689 | ||
df033caf | 690 | free_from = (pgoff_t)F2FS_BLK_ALIGN(from); |
fbfa2cc5 | 691 | |
6d1451bf | 692 | if (free_from >= max_file_blocks(inode)) |
09210c97 CY |
693 | goto free_partial; |
694 | ||
764aa3e9 | 695 | if (lock) |
c42d28ce | 696 | f2fs_lock_op(sbi); |
9ffe0fb5 | 697 | |
4d57b86d | 698 | ipage = f2fs_get_node_page(sbi, inode->i_ino); |
b3d208f9 JK |
699 | if (IS_ERR(ipage)) { |
700 | err = PTR_ERR(ipage); | |
701 | goto out; | |
702 | } | |
703 | ||
704 | if (f2fs_has_inline_data(inode)) { | |
4d57b86d | 705 | f2fs_truncate_inline_inode(inode, ipage, from); |
b3d208f9 | 706 | f2fs_put_page(ipage, 1); |
0bfcfcca | 707 | truncate_page = true; |
b3d208f9 JK |
708 | goto out; |
709 | } | |
710 | ||
711 | set_new_dnode(&dn, inode, ipage, NULL, 0); | |
4d57b86d | 712 | err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA); |
fbfa2cc5 JK |
713 | if (err) { |
714 | if (err == -ENOENT) | |
715 | goto free_next; | |
b3d208f9 | 716 | goto out; |
1ce86bf6 JK |
717 | } |
718 | ||
81ca7350 | 719 | count = ADDRS_PER_PAGE(dn.node_page, inode); |
fbfa2cc5 JK |
720 | |
721 | count -= dn.ofs_in_node; | |
9850cf4a | 722 | f2fs_bug_on(sbi, count < 0); |
39936837 | 723 | |
fbfa2cc5 | 724 | if (dn.ofs_in_node || IS_INODE(dn.node_page)) { |
4d57b86d | 725 | f2fs_truncate_data_blocks_range(&dn, count); |
fbfa2cc5 JK |
726 | free_from += count; |
727 | } | |
728 | ||
729 | f2fs_put_dnode(&dn); | |
730 | free_next: | |
4d57b86d | 731 | err = f2fs_truncate_inode_blocks(inode, free_from); |
764d2c80 JK |
732 | out: |
733 | if (lock) | |
c42d28ce | 734 | f2fs_unlock_op(sbi); |
09210c97 | 735 | free_partial: |
b3d208f9 JK |
736 | /* lastly zero out the first data page */ |
737 | if (!err) | |
0bfcfcca | 738 | err = truncate_partial_data_page(inode, from, truncate_page); |
fbfa2cc5 | 739 | |
51dd6249 | 740 | trace_f2fs_truncate_blocks_exit(inode, err); |
fbfa2cc5 JK |
741 | return err; |
742 | } | |
743 | ||
4c8ff709 CY |
744 | int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock) |
745 | { | |
746 | u64 free_from = from; | |
3265d3db | 747 | int err; |
4c8ff709 | 748 | |
3265d3db | 749 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
4c8ff709 CY |
750 | /* |
751 | * for compressed file, only support cluster size | |
752 | * aligned truncation. | |
753 | */ | |
4fec3fc0 CY |
754 | if (f2fs_compressed_file(inode)) |
755 | free_from = round_up(from, | |
756 | F2FS_I(inode)->i_cluster_size << PAGE_SHIFT); | |
3265d3db CY |
757 | #endif |
758 | ||
759 | err = f2fs_do_truncate_blocks(inode, free_from, lock); | |
760 | if (err) | |
761 | return err; | |
762 | ||
763 | #ifdef CONFIG_F2FS_FS_COMPRESSION | |
4a4fc043 FC |
764 | /* |
765 | * For compressed file, after release compress blocks, don't allow write | |
766 | * direct, but we should allow write direct after truncate to zero. | |
767 | */ | |
768 | if (f2fs_compressed_file(inode) && !free_from | |
769 | && is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) | |
770 | clear_inode_flag(inode, FI_COMPRESS_RELEASED); | |
771 | ||
17d7648d | 772 | if (from != free_from) { |
3265d3db | 773 | err = f2fs_truncate_partial_cluster(inode, from, lock); |
17d7648d CY |
774 | if (err) |
775 | return err; | |
776 | } | |
3265d3db | 777 | #endif |
4c8ff709 | 778 | |
17d7648d | 779 | return 0; |
4c8ff709 CY |
780 | } |
781 | ||
9a449e9c | 782 | int f2fs_truncate(struct inode *inode) |
fbfa2cc5 | 783 | { |
b0154891 CY |
784 | int err; |
785 | ||
1f227a3e JK |
786 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
787 | return -EIO; | |
788 | ||
fbfa2cc5 JK |
789 | if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || |
790 | S_ISLNK(inode->i_mode))) | |
b0154891 | 791 | return 0; |
fbfa2cc5 | 792 | |
51dd6249 NJ |
793 | trace_f2fs_truncate(inode); |
794 | ||
c40e15a9 | 795 | if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) |
14b44d23 | 796 | return -EIO; |
7fa750a1 | 797 | |
10a26878 | 798 | err = f2fs_dquot_initialize(inode); |
25fb04db YC |
799 | if (err) |
800 | return err; | |
801 | ||
92dffd01 | 802 | /* we should check inline_data size */ |
b9d777b8 | 803 | if (!f2fs_may_inline_data(inode)) { |
b0154891 CY |
804 | err = f2fs_convert_inline_inode(inode); |
805 | if (err) | |
806 | return err; | |
92dffd01 JK |
807 | } |
808 | ||
c42d28ce | 809 | err = f2fs_truncate_blocks(inode, i_size_read(inode), true); |
b0154891 CY |
810 | if (err) |
811 | return err; | |
812 | ||
11cc6426 | 813 | inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); |
7c45729a | 814 | f2fs_mark_inode_dirty_sync(inode, false); |
b0154891 | 815 | return 0; |
fbfa2cc5 JK |
816 | } |
817 | ||
bd367329 | 818 | static bool f2fs_force_buffered_io(struct inode *inode, int rw) |
2db0487f EB |
819 | { |
820 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2db0487f EB |
821 | |
822 | if (!fscrypt_dio_supported(inode)) | |
823 | return true; | |
824 | if (fsverity_active(inode)) | |
825 | return true; | |
826 | if (f2fs_compressed_file(inode)) | |
827 | return true; | |
828 | ||
829 | /* disallow direct IO if any of devices has unaligned blksize */ | |
830 | if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize) | |
831 | return true; | |
5d170fe4 LT |
832 | /* |
833 | * for blkzoned device, fallback direct IO to buffered IO, so | |
834 | * all IOs can be serialized by log-structured write. | |
835 | */ | |
b2cf5a1f DJ |
836 | if (f2fs_sb_has_blkzoned(sbi) && (rw == WRITE) && |
837 | !f2fs_is_pinned_file(inode)) | |
5d170fe4 | 838 | return true; |
bd367329 | 839 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) |
2db0487f EB |
840 | return true; |
841 | ||
842 | return false; | |
843 | } | |
844 | ||
b74d24f7 | 845 | int f2fs_getattr(struct mnt_idmap *idmap, const struct path *path, |
549c7297 | 846 | struct kstat *stat, u32 request_mask, unsigned int query_flags) |
fbfa2cc5 | 847 | { |
a528d35e | 848 | struct inode *inode = d_inode(path->dentry); |
1c6d8ee4 | 849 | struct f2fs_inode_info *fi = F2FS_I(inode); |
d13732cc | 850 | struct f2fs_inode *ri = NULL; |
1c6d8ee4 CY |
851 | unsigned int flags; |
852 | ||
1c1d35df | 853 | if (f2fs_has_extra_attr(inode) && |
7beb01f7 | 854 | f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && |
1c1d35df CY |
855 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { |
856 | stat->result_mask |= STATX_BTIME; | |
857 | stat->btime.tv_sec = fi->i_crtime.tv_sec; | |
858 | stat->btime.tv_nsec = fi->i_crtime.tv_nsec; | |
859 | } | |
860 | ||
c8c02272 EB |
861 | /* |
862 | * Return the DIO alignment restrictions if requested. We only return | |
863 | * this information when requested, since on encrypted files it might | |
864 | * take a fair bit of work to get if the file wasn't opened recently. | |
865 | * | |
866 | * f2fs sometimes supports DIO reads but not DIO writes. STATX_DIOALIGN | |
867 | * cannot represent that, so in that case we report no DIO support. | |
868 | */ | |
869 | if ((request_mask & STATX_DIOALIGN) && S_ISREG(inode->i_mode)) { | |
870 | unsigned int bsize = i_blocksize(inode); | |
871 | ||
872 | stat->result_mask |= STATX_DIOALIGN; | |
873 | if (!f2fs_force_buffered_io(inode, WRITE)) { | |
874 | stat->dio_mem_align = bsize; | |
875 | stat->dio_offset_align = bsize; | |
876 | } | |
877 | } | |
878 | ||
36098557 | 879 | flags = fi->i_flags; |
fd26725f CY |
880 | if (flags & F2FS_COMPR_FL) |
881 | stat->attributes |= STATX_ATTR_COMPRESSED; | |
59c84408 | 882 | if (flags & F2FS_APPEND_FL) |
1c6d8ee4 | 883 | stat->attributes |= STATX_ATTR_APPEND; |
62230e0d | 884 | if (IS_ENCRYPTED(inode)) |
1c6d8ee4 | 885 | stat->attributes |= STATX_ATTR_ENCRYPTED; |
59c84408 | 886 | if (flags & F2FS_IMMUTABLE_FL) |
1c6d8ee4 | 887 | stat->attributes |= STATX_ATTR_IMMUTABLE; |
59c84408 | 888 | if (flags & F2FS_NODUMP_FL) |
1c6d8ee4 | 889 | stat->attributes |= STATX_ATTR_NODUMP; |
924e3194 EB |
890 | if (IS_VERITY(inode)) |
891 | stat->attributes |= STATX_ATTR_VERITY; | |
1c6d8ee4 | 892 | |
fd26725f CY |
893 | stat->attributes_mask |= (STATX_ATTR_COMPRESSED | |
894 | STATX_ATTR_APPEND | | |
1c6d8ee4 CY |
895 | STATX_ATTR_ENCRYPTED | |
896 | STATX_ATTR_IMMUTABLE | | |
924e3194 EB |
897 | STATX_ATTR_NODUMP | |
898 | STATX_ATTR_VERITY); | |
1c6d8ee4 | 899 | |
0d72b928 | 900 | generic_fillattr(idmap, request_mask, inode, stat); |
5b4267d1 JK |
901 | |
902 | /* we need to show initial sectors used for inline_data/dentries */ | |
903 | if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) || | |
904 | f2fs_has_inline_dentry(inode)) | |
905 | stat->blocks += (stat->size + 511) >> 9; | |
906 | ||
fbfa2cc5 JK |
907 | return 0; |
908 | } | |
909 | ||
910 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
c1632a0f | 911 | static void __setattr_copy(struct mnt_idmap *idmap, |
e65ce2a5 | 912 | struct inode *inode, const struct iattr *attr) |
fbfa2cc5 | 913 | { |
fbfa2cc5 JK |
914 | unsigned int ia_valid = attr->ia_valid; |
915 | ||
0dbe12f2 CB |
916 | i_uid_update(idmap, attr, inode); |
917 | i_gid_update(idmap, attr, inode); | |
eb31e2f6 | 918 | if (ia_valid & ATTR_ATIME) |
11cc6426 | 919 | inode_set_atime_to_ts(inode, attr->ia_atime); |
eb31e2f6 | 920 | if (ia_valid & ATTR_MTIME) |
11cc6426 | 921 | inode_set_mtime_to_ts(inode, attr->ia_mtime); |
eb31e2f6 | 922 | if (ia_valid & ATTR_CTIME) |
c62ebd35 | 923 | inode_set_ctime_to_ts(inode, attr->ia_ctime); |
fbfa2cc5 JK |
924 | if (ia_valid & ATTR_MODE) { |
925 | umode_t mode = attr->ia_mode; | |
e67fe633 | 926 | vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); |
fbfa2cc5 | 927 | |
1e8a9191 | 928 | if (!vfsgid_in_group_p(vfsgid) && |
9452e93e | 929 | !capable_wrt_inode_uidgid(idmap, inode, CAP_FSETID)) |
fbfa2cc5 | 930 | mode &= ~S_ISGID; |
91942321 | 931 | set_acl_inode(inode, mode); |
fbfa2cc5 JK |
932 | } |
933 | } | |
934 | #else | |
935 | #define __setattr_copy setattr_copy | |
936 | #endif | |
937 | ||
c1632a0f | 938 | int f2fs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, |
549c7297 | 939 | struct iattr *attr) |
fbfa2cc5 | 940 | { |
2b0143b5 | 941 | struct inode *inode = d_inode(dentry); |
fbfa2cc5 JK |
942 | int err; |
943 | ||
1f227a3e JK |
944 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
945 | return -EIO; | |
946 | ||
e0fcd015 CY |
947 | if (unlikely(IS_IMMUTABLE(inode))) |
948 | return -EPERM; | |
949 | ||
950 | if (unlikely(IS_APPEND(inode) && | |
951 | (attr->ia_valid & (ATTR_MODE | ATTR_UID | | |
952 | ATTR_GID | ATTR_TIMES_SET)))) | |
953 | return -EPERM; | |
954 | ||
4c8ff709 CY |
955 | if ((attr->ia_valid & ATTR_SIZE) && |
956 | !f2fs_is_compress_backend_ready(inode)) | |
957 | return -EOPNOTSUPP; | |
958 | ||
c1632a0f | 959 | err = setattr_prepare(idmap, dentry, attr); |
fbfa2cc5 JK |
960 | if (err) |
961 | return err; | |
962 | ||
20bb2479 EB |
963 | err = fscrypt_prepare_setattr(dentry, attr); |
964 | if (err) | |
965 | return err; | |
966 | ||
95ae251f EB |
967 | err = fsverity_prepare_setattr(dentry, attr); |
968 | if (err) | |
969 | return err; | |
970 | ||
f861646a | 971 | if (is_quota_modification(idmap, inode, attr)) { |
10a26878 | 972 | err = f2fs_dquot_initialize(inode); |
0abd675e CY |
973 | if (err) |
974 | return err; | |
975 | } | |
0dbe12f2 CB |
976 | if (i_uid_needs_update(idmap, attr, inode) || |
977 | i_gid_needs_update(idmap, attr, inode)) { | |
af033b2a | 978 | f2fs_lock_op(F2FS_I_SB(inode)); |
f861646a | 979 | err = dquot_transfer(idmap, inode, attr); |
af033b2a CY |
980 | if (err) { |
981 | set_sbi_flag(F2FS_I_SB(inode), | |
982 | SBI_QUOTA_NEED_REPAIR); | |
983 | f2fs_unlock_op(F2FS_I_SB(inode)); | |
0abd675e | 984 | return err; |
af033b2a CY |
985 | } |
986 | /* | |
987 | * update uid/gid under lock_op(), so that dquot and inode can | |
988 | * be updated atomically. | |
989 | */ | |
0dbe12f2 CB |
990 | i_uid_update(idmap, attr, inode); |
991 | i_gid_update(idmap, attr, inode); | |
af033b2a CY |
992 | f2fs_mark_inode_dirty_sync(inode, true); |
993 | f2fs_unlock_op(F2FS_I_SB(inode)); | |
0abd675e CY |
994 | } |
995 | ||
09db6a2e | 996 | if (attr->ia_valid & ATTR_SIZE) { |
cfb9a34d JK |
997 | loff_t old_size = i_size_read(inode); |
998 | ||
999 | if (attr->ia_size > MAX_INLINE_DATA(inode)) { | |
1000 | /* | |
1001 | * should convert inline inode before i_size_write to | |
1002 | * keep smaller than inline_data size with inline flag. | |
1003 | */ | |
1004 | err = f2fs_convert_inline_inode(inode); | |
1005 | if (err) | |
1006 | return err; | |
1007 | } | |
a33c1502 | 1008 | |
e4544b63 | 1009 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1010 | filemap_invalidate_lock(inode->i_mapping); |
a33c1502 CY |
1011 | |
1012 | truncate_setsize(inode, attr->ia_size); | |
1013 | ||
cfb9a34d | 1014 | if (attr->ia_size <= old_size) |
9a449e9c | 1015 | err = f2fs_truncate(inode); |
a33c1502 CY |
1016 | /* |
1017 | * do not trim all blocks after i_size if target size is | |
1018 | * larger than i_size. | |
1019 | */ | |
edc6d01b | 1020 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 1021 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
a33c1502 CY |
1022 | if (err) |
1023 | return err; | |
0cab80ee | 1024 | |
c10c9820 | 1025 | spin_lock(&F2FS_I(inode)->i_size_lock); |
11cc6426 | 1026 | inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); |
a0d00fad | 1027 | F2FS_I(inode)->last_disk_size = i_size_read(inode); |
c10c9820 | 1028 | spin_unlock(&F2FS_I(inode)->i_size_lock); |
fbfa2cc5 JK |
1029 | } |
1030 | ||
c1632a0f | 1031 | __setattr_copy(idmap, inode, attr); |
fbfa2cc5 JK |
1032 | |
1033 | if (attr->ia_valid & ATTR_MODE) { | |
13e83a49 | 1034 | err = posix_acl_chmod(idmap, dentry, f2fs_get_inode_mode(inode)); |
17232e83 CY |
1035 | |
1036 | if (is_inode_flag_set(inode, FI_ACL_MODE)) { | |
1037 | if (!err) | |
1038 | inode->i_mode = F2FS_I(inode)->i_acl_mode; | |
91942321 | 1039 | clear_inode_flag(inode, FI_ACL_MODE); |
fbfa2cc5 JK |
1040 | } |
1041 | } | |
1042 | ||
c0ed4405 | 1043 | /* file size may changed here */ |
ca597bdd | 1044 | f2fs_mark_inode_dirty_sync(inode, true); |
15d04354 JK |
1045 | |
1046 | /* inode change will produce dirty node pages flushed by checkpoint */ | |
1047 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
1048 | ||
fbfa2cc5 JK |
1049 | return err; |
1050 | } | |
1051 | ||
1052 | const struct inode_operations f2fs_file_inode_operations = { | |
1053 | .getattr = f2fs_getattr, | |
1054 | .setattr = f2fs_setattr, | |
cac2f8b8 | 1055 | .get_inode_acl = f2fs_get_acl, |
a6dda0e6 | 1056 | .set_acl = f2fs_set_acl, |
fbfa2cc5 | 1057 | .listxattr = f2fs_listxattr, |
9ab70134 | 1058 | .fiemap = f2fs_fiemap, |
9b1bb01c MS |
1059 | .fileattr_get = f2fs_fileattr_get, |
1060 | .fileattr_set = f2fs_fileattr_set, | |
fbfa2cc5 JK |
1061 | }; |
1062 | ||
6394328a | 1063 | static int fill_zero(struct inode *inode, pgoff_t index, |
fbfa2cc5 JK |
1064 | loff_t start, loff_t len) |
1065 | { | |
4081363f | 1066 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
1067 | struct page *page; |
1068 | ||
1069 | if (!len) | |
6394328a | 1070 | return 0; |
fbfa2cc5 | 1071 | |
2c4db1a6 | 1072 | f2fs_balance_fs(sbi, true); |
bd43df02 | 1073 | |
e479556b | 1074 | f2fs_lock_op(sbi); |
4d57b86d | 1075 | page = f2fs_get_new_data_page(inode, NULL, index, false); |
e479556b | 1076 | f2fs_unlock_op(sbi); |
fbfa2cc5 | 1077 | |
6394328a CY |
1078 | if (IS_ERR(page)) |
1079 | return PTR_ERR(page); | |
1080 | ||
bae0ee7a | 1081 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
6394328a CY |
1082 | zero_user(page, start, len); |
1083 | set_page_dirty(page); | |
1084 | f2fs_put_page(page, 1); | |
1085 | return 0; | |
fbfa2cc5 JK |
1086 | } |
1087 | ||
4d57b86d | 1088 | int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end) |
fbfa2cc5 | 1089 | { |
fbfa2cc5 JK |
1090 | int err; |
1091 | ||
ea58711e | 1092 | while (pg_start < pg_end) { |
fbfa2cc5 | 1093 | struct dnode_of_data dn; |
ea58711e | 1094 | pgoff_t end_offset, count; |
9eaeba70 | 1095 | |
fbfa2cc5 | 1096 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1097 | err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE); |
fbfa2cc5 | 1098 | if (err) { |
ea58711e | 1099 | if (err == -ENOENT) { |
4d57b86d CY |
1100 | pg_start = f2fs_get_next_page_offset(&dn, |
1101 | pg_start); | |
fbfa2cc5 | 1102 | continue; |
ea58711e | 1103 | } |
fbfa2cc5 JK |
1104 | return err; |
1105 | } | |
1106 | ||
81ca7350 | 1107 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
ea58711e CY |
1108 | count = min(end_offset - dn.ofs_in_node, pg_end - pg_start); |
1109 | ||
1110 | f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset); | |
1111 | ||
4d57b86d | 1112 | f2fs_truncate_data_blocks_range(&dn, count); |
fbfa2cc5 | 1113 | f2fs_put_dnode(&dn); |
ea58711e CY |
1114 | |
1115 | pg_start += count; | |
fbfa2cc5 JK |
1116 | } |
1117 | return 0; | |
1118 | } | |
1119 | ||
1cd75654 | 1120 | static int f2fs_punch_hole(struct inode *inode, loff_t offset, loff_t len) |
fbfa2cc5 JK |
1121 | { |
1122 | pgoff_t pg_start, pg_end; | |
1123 | loff_t off_start, off_end; | |
b9d777b8 | 1124 | int ret; |
fbfa2cc5 | 1125 | |
b9d777b8 JK |
1126 | ret = f2fs_convert_inline_inode(inode); |
1127 | if (ret) | |
1128 | return ret; | |
9ffe0fb5 | 1129 | |
09cbfeaf KS |
1130 | pg_start = ((unsigned long long) offset) >> PAGE_SHIFT; |
1131 | pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT; | |
fbfa2cc5 | 1132 | |
09cbfeaf KS |
1133 | off_start = offset & (PAGE_SIZE - 1); |
1134 | off_end = (offset + len) & (PAGE_SIZE - 1); | |
fbfa2cc5 JK |
1135 | |
1136 | if (pg_start == pg_end) { | |
6394328a | 1137 | ret = fill_zero(inode, pg_start, off_start, |
fbfa2cc5 | 1138 | off_end - off_start); |
6394328a CY |
1139 | if (ret) |
1140 | return ret; | |
fbfa2cc5 | 1141 | } else { |
6394328a CY |
1142 | if (off_start) { |
1143 | ret = fill_zero(inode, pg_start++, off_start, | |
09cbfeaf | 1144 | PAGE_SIZE - off_start); |
6394328a CY |
1145 | if (ret) |
1146 | return ret; | |
1147 | } | |
1148 | if (off_end) { | |
1149 | ret = fill_zero(inode, pg_end, 0, off_end); | |
1150 | if (ret) | |
1151 | return ret; | |
1152 | } | |
fbfa2cc5 JK |
1153 | |
1154 | if (pg_start < pg_end) { | |
fbfa2cc5 | 1155 | loff_t blk_start, blk_end; |
4081363f | 1156 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1127a3d4 | 1157 | |
2c4db1a6 | 1158 | f2fs_balance_fs(sbi, true); |
fbfa2cc5 | 1159 | |
09cbfeaf KS |
1160 | blk_start = (loff_t)pg_start << PAGE_SHIFT; |
1161 | blk_end = (loff_t)pg_end << PAGE_SHIFT; | |
a33c1502 | 1162 | |
e4544b63 | 1163 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
6abaa83c | 1164 | filemap_invalidate_lock(inode->i_mapping); |
a33c1502 | 1165 | |
c8dc3047 | 1166 | truncate_pagecache_range(inode, blk_start, blk_end - 1); |
39936837 | 1167 | |
e479556b | 1168 | f2fs_lock_op(sbi); |
4d57b86d | 1169 | ret = f2fs_truncate_hole(inode, pg_start, pg_end); |
e479556b | 1170 | f2fs_unlock_op(sbi); |
a33c1502 | 1171 | |
6abaa83c | 1172 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 1173 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
fbfa2cc5 JK |
1174 | } |
1175 | } | |
1176 | ||
fbfa2cc5 JK |
1177 | return ret; |
1178 | } | |
1179 | ||
0a2aa8fb JK |
1180 | static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr, |
1181 | int *do_replace, pgoff_t off, pgoff_t len) | |
b4ace337 CY |
1182 | { |
1183 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1184 | struct dnode_of_data dn; | |
0a2aa8fb | 1185 | int ret, done, i; |
ecbaa406 | 1186 | |
0a2aa8fb | 1187 | next_dnode: |
6e2c64ad | 1188 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1189 | ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA); |
6e2c64ad JK |
1190 | if (ret && ret != -ENOENT) { |
1191 | return ret; | |
1192 | } else if (ret == -ENOENT) { | |
0a2aa8fb JK |
1193 | if (dn.max_level == 0) |
1194 | return -ENOENT; | |
4c8ff709 CY |
1195 | done = min((pgoff_t)ADDRS_PER_BLOCK(inode) - |
1196 | dn.ofs_in_node, len); | |
0a2aa8fb JK |
1197 | blkaddr += done; |
1198 | do_replace += done; | |
1199 | goto next; | |
1200 | } | |
1201 | ||
1202 | done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) - | |
1203 | dn.ofs_in_node, len); | |
1204 | for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) { | |
a2ced1ce | 1205 | *blkaddr = f2fs_data_blkaddr(&dn); |
93770ab7 CY |
1206 | |
1207 | if (__is_valid_data_blkaddr(*blkaddr) && | |
1208 | !f2fs_is_valid_blkaddr(sbi, *blkaddr, | |
1209 | DATA_GENERIC_ENHANCE)) { | |
1210 | f2fs_put_dnode(&dn); | |
10f966bb | 1211 | return -EFSCORRUPTED; |
93770ab7 CY |
1212 | } |
1213 | ||
4d57b86d | 1214 | if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) { |
0a2aa8fb | 1215 | |
b0332a0f | 1216 | if (f2fs_lfs_mode(sbi)) { |
0a2aa8fb | 1217 | f2fs_put_dnode(&dn); |
fd114ab2 | 1218 | return -EOPNOTSUPP; |
0a2aa8fb JK |
1219 | } |
1220 | ||
6e2c64ad | 1221 | /* do not invalidate this block address */ |
f28b3434 | 1222 | f2fs_update_data_blkaddr(&dn, NULL_ADDR); |
0a2aa8fb | 1223 | *do_replace = 1; |
b4ace337 | 1224 | } |
6e2c64ad | 1225 | } |
0a2aa8fb JK |
1226 | f2fs_put_dnode(&dn); |
1227 | next: | |
1228 | len -= done; | |
1229 | off += done; | |
1230 | if (len) | |
1231 | goto next_dnode; | |
1232 | return 0; | |
1233 | } | |
b4ace337 | 1234 | |
0a2aa8fb JK |
1235 | static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr, |
1236 | int *do_replace, pgoff_t off, int len) | |
1237 | { | |
1238 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1239 | struct dnode_of_data dn; | |
1240 | int ret, i; | |
b4ace337 | 1241 | |
0a2aa8fb JK |
1242 | for (i = 0; i < len; i++, do_replace++, blkaddr++) { |
1243 | if (*do_replace == 0) | |
1244 | continue; | |
b4ace337 | 1245 | |
0a2aa8fb | 1246 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1247 | ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA); |
0a2aa8fb JK |
1248 | if (ret) { |
1249 | dec_valid_block_count(sbi, inode, 1); | |
4d57b86d | 1250 | f2fs_invalidate_blocks(sbi, *blkaddr); |
0a2aa8fb JK |
1251 | } else { |
1252 | f2fs_update_data_blkaddr(&dn, *blkaddr); | |
36abef4e | 1253 | } |
0a2aa8fb JK |
1254 | f2fs_put_dnode(&dn); |
1255 | } | |
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode, | |
1260 | block_t *blkaddr, int *do_replace, | |
1261 | pgoff_t src, pgoff_t dst, pgoff_t len, bool full) | |
1262 | { | |
1263 | struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode); | |
1264 | pgoff_t i = 0; | |
1265 | int ret; | |
36abef4e | 1266 | |
0a2aa8fb JK |
1267 | while (i < len) { |
1268 | if (blkaddr[i] == NULL_ADDR && !full) { | |
1269 | i++; | |
1270 | continue; | |
6e2c64ad | 1271 | } |
b4ace337 | 1272 | |
0a2aa8fb JK |
1273 | if (do_replace[i] || blkaddr[i] == NULL_ADDR) { |
1274 | struct dnode_of_data dn; | |
1275 | struct node_info ni; | |
1276 | size_t new_size; | |
1277 | pgoff_t ilen; | |
b4ace337 | 1278 | |
0a2aa8fb | 1279 | set_new_dnode(&dn, dst_inode, NULL, NULL, 0); |
4d57b86d | 1280 | ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE); |
0a2aa8fb JK |
1281 | if (ret) |
1282 | return ret; | |
b4ace337 | 1283 | |
a9419b63 | 1284 | ret = f2fs_get_node_info(sbi, dn.nid, &ni, false); |
7735730d CY |
1285 | if (ret) { |
1286 | f2fs_put_dnode(&dn); | |
1287 | return ret; | |
1288 | } | |
1289 | ||
0a2aa8fb JK |
1290 | ilen = min((pgoff_t) |
1291 | ADDRS_PER_PAGE(dn.node_page, dst_inode) - | |
1292 | dn.ofs_in_node, len - i); | |
1293 | do { | |
a2ced1ce | 1294 | dn.data_blkaddr = f2fs_data_blkaddr(&dn); |
4d57b86d | 1295 | f2fs_truncate_data_blocks_range(&dn, 1); |
0a2aa8fb JK |
1296 | |
1297 | if (do_replace[i]) { | |
1298 | f2fs_i_blocks_write(src_inode, | |
0abd675e | 1299 | 1, false, false); |
0a2aa8fb | 1300 | f2fs_i_blocks_write(dst_inode, |
0abd675e | 1301 | 1, true, false); |
0a2aa8fb JK |
1302 | f2fs_replace_block(sbi, &dn, dn.data_blkaddr, |
1303 | blkaddr[i], ni.version, true, false); | |
1304 | ||
1305 | do_replace[i] = 0; | |
1306 | } | |
1307 | dn.ofs_in_node++; | |
1308 | i++; | |
1f0d5c91 | 1309 | new_size = (loff_t)(dst + i) << PAGE_SHIFT; |
0a2aa8fb JK |
1310 | if (dst_inode->i_size < new_size) |
1311 | f2fs_i_size_write(dst_inode, new_size); | |
e87f7329 | 1312 | } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR)); |
6e2c64ad | 1313 | |
0a2aa8fb JK |
1314 | f2fs_put_dnode(&dn); |
1315 | } else { | |
1316 | struct page *psrc, *pdst; | |
1317 | ||
4d57b86d CY |
1318 | psrc = f2fs_get_lock_data_page(src_inode, |
1319 | src + i, true); | |
0a2aa8fb JK |
1320 | if (IS_ERR(psrc)) |
1321 | return PTR_ERR(psrc); | |
4d57b86d | 1322 | pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i, |
0a2aa8fb JK |
1323 | true); |
1324 | if (IS_ERR(pdst)) { | |
1325 | f2fs_put_page(psrc, 1); | |
1326 | return PTR_ERR(pdst); | |
1327 | } | |
d3876e34 CY |
1328 | |
1329 | f2fs_wait_on_page_writeback(pdst, DATA, true, true); | |
1330 | ||
1dd55358 | 1331 | memcpy_page(pdst, 0, psrc, 0, PAGE_SIZE); |
0a2aa8fb | 1332 | set_page_dirty(pdst); |
4961acdd | 1333 | set_page_private_gcing(pdst); |
0a2aa8fb | 1334 | f2fs_put_page(pdst, 1); |
6e2c64ad | 1335 | f2fs_put_page(psrc, 1); |
b4ace337 | 1336 | |
4d57b86d CY |
1337 | ret = f2fs_truncate_hole(src_inode, |
1338 | src + i, src + i + 1); | |
0a2aa8fb JK |
1339 | if (ret) |
1340 | return ret; | |
1341 | i++; | |
1342 | } | |
6e2c64ad JK |
1343 | } |
1344 | return 0; | |
0a2aa8fb | 1345 | } |
b4ace337 | 1346 | |
0a2aa8fb JK |
1347 | static int __exchange_data_block(struct inode *src_inode, |
1348 | struct inode *dst_inode, pgoff_t src, pgoff_t dst, | |
363cad7f | 1349 | pgoff_t len, bool full) |
0a2aa8fb JK |
1350 | { |
1351 | block_t *src_blkaddr; | |
1352 | int *do_replace; | |
363cad7f | 1353 | pgoff_t olen; |
0a2aa8fb JK |
1354 | int ret; |
1355 | ||
363cad7f | 1356 | while (len) { |
d02a6e61 | 1357 | olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len); |
0a2aa8fb | 1358 | |
628b3d14 | 1359 | src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode), |
9d2a789c | 1360 | array_size(olen, sizeof(block_t)), |
4f4460c0 | 1361 | GFP_NOFS); |
363cad7f JK |
1362 | if (!src_blkaddr) |
1363 | return -ENOMEM; | |
0a2aa8fb | 1364 | |
628b3d14 | 1365 | do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode), |
9d2a789c | 1366 | array_size(olen, sizeof(int)), |
4f4460c0 | 1367 | GFP_NOFS); |
363cad7f JK |
1368 | if (!do_replace) { |
1369 | kvfree(src_blkaddr); | |
1370 | return -ENOMEM; | |
1371 | } | |
0a2aa8fb | 1372 | |
363cad7f JK |
1373 | ret = __read_out_blkaddrs(src_inode, src_blkaddr, |
1374 | do_replace, src, olen); | |
1375 | if (ret) | |
1376 | goto roll_back; | |
0a2aa8fb | 1377 | |
363cad7f JK |
1378 | ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr, |
1379 | do_replace, src, dst, olen, full); | |
1380 | if (ret) | |
1381 | goto roll_back; | |
1382 | ||
1383 | src += olen; | |
1384 | dst += olen; | |
1385 | len -= olen; | |
1386 | ||
1387 | kvfree(src_blkaddr); | |
1388 | kvfree(do_replace); | |
1389 | } | |
0a2aa8fb JK |
1390 | return 0; |
1391 | ||
1392 | roll_back: | |
9fd62605 | 1393 | __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen); |
0a2aa8fb JK |
1394 | kvfree(src_blkaddr); |
1395 | kvfree(do_replace); | |
6e2c64ad JK |
1396 | return ret; |
1397 | } | |
b4ace337 | 1398 | |
6f8d4455 | 1399 | static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len) |
6e2c64ad JK |
1400 | { |
1401 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
f91108b8 | 1402 | pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); |
6f8d4455 JK |
1403 | pgoff_t start = offset >> PAGE_SHIFT; |
1404 | pgoff_t end = (offset + len) >> PAGE_SHIFT; | |
0a2aa8fb | 1405 | int ret; |
6e2c64ad | 1406 | |
0a2aa8fb | 1407 | f2fs_balance_fs(sbi, true); |
5f281fab | 1408 | |
6f8d4455 | 1409 | /* avoid gc operation during block exchange */ |
e4544b63 | 1410 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1411 | filemap_invalidate_lock(inode->i_mapping); |
5f281fab | 1412 | |
6f8d4455 JK |
1413 | f2fs_lock_op(sbi); |
1414 | f2fs_drop_extent_tree(inode); | |
1415 | truncate_pagecache(inode, offset); | |
0a2aa8fb JK |
1416 | ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true); |
1417 | f2fs_unlock_op(sbi); | |
6f8d4455 | 1418 | |
edc6d01b | 1419 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 1420 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
b4ace337 CY |
1421 | return ret; |
1422 | } | |
1423 | ||
1424 | static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len) | |
1425 | { | |
b4ace337 CY |
1426 | loff_t new_size; |
1427 | int ret; | |
1428 | ||
b4ace337 CY |
1429 | if (offset + len >= i_size_read(inode)) |
1430 | return -EINVAL; | |
1431 | ||
1432 | /* collapse range should be aligned to block size of f2fs. */ | |
1433 | if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1)) | |
1434 | return -EINVAL; | |
1435 | ||
b9d777b8 JK |
1436 | ret = f2fs_convert_inline_inode(inode); |
1437 | if (ret) | |
1438 | return ret; | |
97a7b2c2 | 1439 | |
b4ace337 CY |
1440 | /* write out all dirty pages from offset */ |
1441 | ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); | |
1442 | if (ret) | |
6f8d4455 | 1443 | return ret; |
b4ace337 | 1444 | |
6f8d4455 | 1445 | ret = f2fs_do_collapse(inode, offset, len); |
b4ace337 | 1446 | if (ret) |
6f8d4455 | 1447 | return ret; |
b4ace337 | 1448 | |
6e2c64ad | 1449 | /* write out all moved pages, if possible */ |
edc6d01b | 1450 | filemap_invalidate_lock(inode->i_mapping); |
6e2c64ad JK |
1451 | filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); |
1452 | truncate_pagecache(inode, offset); | |
1453 | ||
b4ace337 | 1454 | new_size = i_size_read(inode) - len; |
c42d28ce | 1455 | ret = f2fs_truncate_blocks(inode, new_size, true); |
edc6d01b | 1456 | filemap_invalidate_unlock(inode->i_mapping); |
b4ace337 | 1457 | if (!ret) |
fc9581c8 | 1458 | f2fs_i_size_write(inode, new_size); |
b4ace337 CY |
1459 | return ret; |
1460 | } | |
1461 | ||
6e961949 CY |
1462 | static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start, |
1463 | pgoff_t end) | |
1464 | { | |
1465 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
1466 | pgoff_t index = start; | |
1467 | unsigned int ofs_in_node = dn->ofs_in_node; | |
1468 | blkcnt_t count = 0; | |
1469 | int ret; | |
1470 | ||
1471 | for (; index < end; index++, dn->ofs_in_node++) { | |
a2ced1ce | 1472 | if (f2fs_data_blkaddr(dn) == NULL_ADDR) |
6e961949 CY |
1473 | count++; |
1474 | } | |
1475 | ||
1476 | dn->ofs_in_node = ofs_in_node; | |
4d57b86d | 1477 | ret = f2fs_reserve_new_blocks(dn, count); |
6e961949 CY |
1478 | if (ret) |
1479 | return ret; | |
1480 | ||
1481 | dn->ofs_in_node = ofs_in_node; | |
1482 | for (index = start; index < end; index++, dn->ofs_in_node++) { | |
a2ced1ce | 1483 | dn->data_blkaddr = f2fs_data_blkaddr(dn); |
6e961949 | 1484 | /* |
4d57b86d | 1485 | * f2fs_reserve_new_blocks will not guarantee entire block |
6e961949 CY |
1486 | * allocation. |
1487 | */ | |
1488 | if (dn->data_blkaddr == NULL_ADDR) { | |
1489 | ret = -ENOSPC; | |
1490 | break; | |
1491 | } | |
25f82362 CY |
1492 | |
1493 | if (dn->data_blkaddr == NEW_ADDR) | |
1494 | continue; | |
1495 | ||
1496 | if (!f2fs_is_valid_blkaddr(sbi, dn->data_blkaddr, | |
1497 | DATA_GENERIC_ENHANCE)) { | |
1498 | ret = -EFSCORRUPTED; | |
1499 | break; | |
6e961949 | 1500 | } |
25f82362 CY |
1501 | |
1502 | f2fs_invalidate_blocks(sbi, dn->data_blkaddr); | |
59d0d4c3 | 1503 | f2fs_set_data_blkaddr(dn, NEW_ADDR); |
6e961949 CY |
1504 | } |
1505 | ||
e7547dac | 1506 | f2fs_update_read_extent_cache_range(dn, start, 0, index - start); |
a84153f9 | 1507 | f2fs_update_age_extent_cache_range(dn, start, index - start); |
6e961949 CY |
1508 | |
1509 | return ret; | |
1510 | } | |
1511 | ||
75cd4e09 CY |
1512 | static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len, |
1513 | int mode) | |
1514 | { | |
1515 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1516 | struct address_space *mapping = inode->i_mapping; | |
1517 | pgoff_t index, pg_start, pg_end; | |
1518 | loff_t new_size = i_size_read(inode); | |
1519 | loff_t off_start, off_end; | |
1520 | int ret = 0; | |
1521 | ||
75cd4e09 CY |
1522 | ret = inode_newsize_ok(inode, (len + offset)); |
1523 | if (ret) | |
1524 | return ret; | |
1525 | ||
b9d777b8 JK |
1526 | ret = f2fs_convert_inline_inode(inode); |
1527 | if (ret) | |
1528 | return ret; | |
75cd4e09 CY |
1529 | |
1530 | ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1); | |
1531 | if (ret) | |
6f8d4455 | 1532 | return ret; |
75cd4e09 | 1533 | |
09cbfeaf KS |
1534 | pg_start = ((unsigned long long) offset) >> PAGE_SHIFT; |
1535 | pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT; | |
75cd4e09 | 1536 | |
09cbfeaf KS |
1537 | off_start = offset & (PAGE_SIZE - 1); |
1538 | off_end = (offset + len) & (PAGE_SIZE - 1); | |
75cd4e09 CY |
1539 | |
1540 | if (pg_start == pg_end) { | |
6394328a CY |
1541 | ret = fill_zero(inode, pg_start, off_start, |
1542 | off_end - off_start); | |
1543 | if (ret) | |
6f8d4455 | 1544 | return ret; |
6394328a | 1545 | |
75cd4e09 CY |
1546 | new_size = max_t(loff_t, new_size, offset + len); |
1547 | } else { | |
1548 | if (off_start) { | |
6394328a | 1549 | ret = fill_zero(inode, pg_start++, off_start, |
09cbfeaf | 1550 | PAGE_SIZE - off_start); |
6394328a | 1551 | if (ret) |
6f8d4455 | 1552 | return ret; |
6394328a | 1553 | |
75cd4e09 | 1554 | new_size = max_t(loff_t, new_size, |
09cbfeaf | 1555 | (loff_t)pg_start << PAGE_SHIFT); |
75cd4e09 CY |
1556 | } |
1557 | ||
6e961949 | 1558 | for (index = pg_start; index < pg_end;) { |
75cd4e09 | 1559 | struct dnode_of_data dn; |
6e961949 CY |
1560 | unsigned int end_offset; |
1561 | pgoff_t end; | |
75cd4e09 | 1562 | |
e4544b63 | 1563 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1564 | filemap_invalidate_lock(mapping); |
c7079853 CY |
1565 | |
1566 | truncate_pagecache_range(inode, | |
1567 | (loff_t)index << PAGE_SHIFT, | |
1568 | ((loff_t)pg_end << PAGE_SHIFT) - 1); | |
1569 | ||
75cd4e09 CY |
1570 | f2fs_lock_op(sbi); |
1571 | ||
6e961949 | 1572 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1573 | ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE); |
75cd4e09 CY |
1574 | if (ret) { |
1575 | f2fs_unlock_op(sbi); | |
edc6d01b | 1576 | filemap_invalidate_unlock(mapping); |
e4544b63 | 1577 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
75cd4e09 CY |
1578 | goto out; |
1579 | } | |
1580 | ||
6e961949 CY |
1581 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
1582 | end = min(pg_end, end_offset - dn.ofs_in_node + index); | |
1583 | ||
1584 | ret = f2fs_do_zero_range(&dn, index, end); | |
75cd4e09 | 1585 | f2fs_put_dnode(&dn); |
c7079853 | 1586 | |
75cd4e09 | 1587 | f2fs_unlock_op(sbi); |
edc6d01b | 1588 | filemap_invalidate_unlock(mapping); |
e4544b63 | 1589 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
9434fcde CY |
1590 | |
1591 | f2fs_balance_fs(sbi, dn.node_changed); | |
1592 | ||
6e961949 CY |
1593 | if (ret) |
1594 | goto out; | |
75cd4e09 | 1595 | |
6e961949 | 1596 | index = end; |
75cd4e09 | 1597 | new_size = max_t(loff_t, new_size, |
6e961949 | 1598 | (loff_t)index << PAGE_SHIFT); |
75cd4e09 CY |
1599 | } |
1600 | ||
1601 | if (off_end) { | |
6394328a CY |
1602 | ret = fill_zero(inode, pg_end, 0, off_end); |
1603 | if (ret) | |
1604 | goto out; | |
1605 | ||
75cd4e09 CY |
1606 | new_size = max_t(loff_t, new_size, offset + len); |
1607 | } | |
1608 | } | |
1609 | ||
1610 | out: | |
17cd07ae CY |
1611 | if (new_size > i_size_read(inode)) { |
1612 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1613 | file_set_keep_isize(inode); | |
1614 | else | |
1615 | f2fs_i_size_write(inode, new_size); | |
1616 | } | |
75cd4e09 CY |
1617 | return ret; |
1618 | } | |
1619 | ||
f62185d0 CY |
1620 | static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len) |
1621 | { | |
1622 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
edc6d01b | 1623 | struct address_space *mapping = inode->i_mapping; |
0a2aa8fb | 1624 | pgoff_t nr, pg_start, pg_end, delta, idx; |
f62185d0 | 1625 | loff_t new_size; |
6e2c64ad | 1626 | int ret = 0; |
f62185d0 | 1627 | |
f62185d0 | 1628 | new_size = i_size_read(inode) + len; |
46e82fb1 KM |
1629 | ret = inode_newsize_ok(inode, new_size); |
1630 | if (ret) | |
1631 | return ret; | |
f62185d0 CY |
1632 | |
1633 | if (offset >= i_size_read(inode)) | |
1634 | return -EINVAL; | |
1635 | ||
1636 | /* insert range should be aligned to block size of f2fs. */ | |
1637 | if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1)) | |
1638 | return -EINVAL; | |
1639 | ||
b9d777b8 JK |
1640 | ret = f2fs_convert_inline_inode(inode); |
1641 | if (ret) | |
1642 | return ret; | |
97a7b2c2 | 1643 | |
2c4db1a6 | 1644 | f2fs_balance_fs(sbi, true); |
2a340760 | 1645 | |
edc6d01b | 1646 | filemap_invalidate_lock(mapping); |
c42d28ce | 1647 | ret = f2fs_truncate_blocks(inode, i_size_read(inode), true); |
edc6d01b | 1648 | filemap_invalidate_unlock(mapping); |
f62185d0 | 1649 | if (ret) |
6f8d4455 | 1650 | return ret; |
f62185d0 CY |
1651 | |
1652 | /* write out all dirty pages from offset */ | |
edc6d01b | 1653 | ret = filemap_write_and_wait_range(mapping, offset, LLONG_MAX); |
f62185d0 | 1654 | if (ret) |
6f8d4455 | 1655 | return ret; |
f62185d0 | 1656 | |
09cbfeaf KS |
1657 | pg_start = offset >> PAGE_SHIFT; |
1658 | pg_end = (offset + len) >> PAGE_SHIFT; | |
f62185d0 | 1659 | delta = pg_end - pg_start; |
f91108b8 | 1660 | idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); |
0a2aa8fb | 1661 | |
6f8d4455 | 1662 | /* avoid gc operation during block exchange */ |
e4544b63 | 1663 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1664 | filemap_invalidate_lock(mapping); |
6f8d4455 JK |
1665 | truncate_pagecache(inode, offset); |
1666 | ||
0a2aa8fb JK |
1667 | while (!ret && idx > pg_start) { |
1668 | nr = idx - pg_start; | |
1669 | if (nr > delta) | |
1670 | nr = delta; | |
1671 | idx -= nr; | |
f62185d0 | 1672 | |
f62185d0 | 1673 | f2fs_lock_op(sbi); |
5f281fab JK |
1674 | f2fs_drop_extent_tree(inode); |
1675 | ||
0a2aa8fb JK |
1676 | ret = __exchange_data_block(inode, inode, idx, |
1677 | idx + delta, nr, false); | |
f62185d0 CY |
1678 | f2fs_unlock_op(sbi); |
1679 | } | |
edc6d01b | 1680 | filemap_invalidate_unlock(mapping); |
e4544b63 | 1681 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
2fc2bcc8 CY |
1682 | if (ret) |
1683 | return ret; | |
f62185d0 | 1684 | |
6e2c64ad | 1685 | /* write out all moved pages, if possible */ |
edc6d01b | 1686 | filemap_invalidate_lock(mapping); |
2fc2bcc8 | 1687 | ret = filemap_write_and_wait_range(mapping, offset, LLONG_MAX); |
6e2c64ad | 1688 | truncate_pagecache(inode, offset); |
edc6d01b | 1689 | filemap_invalidate_unlock(mapping); |
6e2c64ad JK |
1690 | |
1691 | if (!ret) | |
fc9581c8 | 1692 | f2fs_i_size_write(inode, new_size); |
f62185d0 CY |
1693 | return ret; |
1694 | } | |
1695 | ||
1cd75654 | 1696 | static int f2fs_expand_inode_data(struct inode *inode, loff_t offset, |
fbfa2cc5 JK |
1697 | loff_t len, int mode) |
1698 | { | |
4081363f | 1699 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
d5097be5 | 1700 | struct f2fs_map_blocks map = { .m_next_pgofs = NULL, |
f9d6d059 CY |
1701 | .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE, |
1702 | .m_may_create = true }; | |
d147ea4a JK |
1703 | struct f2fs_gc_control gc_control = { .victim_segno = NULL_SEGNO, |
1704 | .init_gc_type = FG_GC, | |
1705 | .should_migrate_blocks = false, | |
c81d5bae JK |
1706 | .err_gc_skipped = true, |
1707 | .nr_free_secs = 0 }; | |
88f2cfc5 | 1708 | pgoff_t pg_start, pg_end; |
39bee2e6 | 1709 | loff_t new_size; |
e12dd7bd | 1710 | loff_t off_end; |
88f2cfc5 | 1711 | block_t expanded = 0; |
a7de6086 | 1712 | int err; |
fbfa2cc5 | 1713 | |
a7de6086 JK |
1714 | err = inode_newsize_ok(inode, (len + offset)); |
1715 | if (err) | |
1716 | return err; | |
fbfa2cc5 | 1717 | |
a7de6086 JK |
1718 | err = f2fs_convert_inline_inode(inode); |
1719 | if (err) | |
1720 | return err; | |
9e09fc85 | 1721 | |
2c4db1a6 | 1722 | f2fs_balance_fs(sbi, true); |
2a340760 | 1723 | |
88f2cfc5 | 1724 | pg_start = ((unsigned long long)offset) >> PAGE_SHIFT; |
e12dd7bd | 1725 | pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT; |
09cbfeaf | 1726 | off_end = (offset + len) & (PAGE_SIZE - 1); |
fbfa2cc5 | 1727 | |
88f2cfc5 CY |
1728 | map.m_lblk = pg_start; |
1729 | map.m_len = pg_end - pg_start; | |
e12dd7bd JK |
1730 | if (off_end) |
1731 | map.m_len++; | |
ead43275 | 1732 | |
f5a53edc JK |
1733 | if (!map.m_len) |
1734 | return 0; | |
1735 | ||
1736 | if (f2fs_is_pinned_file(inode)) { | |
074b5ea2 | 1737 | block_t sec_blks = CAP_BLKS_PER_SEC(sbi); |
e1175f02 | 1738 | block_t sec_len = roundup(map.m_len, sec_blks); |
f5a53edc | 1739 | |
e1175f02 | 1740 | map.m_len = sec_blks; |
f5a53edc JK |
1741 | next_alloc: |
1742 | if (has_not_enough_free_secs(sbi, 0, | |
1743 | GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) { | |
e4544b63 | 1744 | f2fs_down_write(&sbi->gc_lock); |
9bf1dcbd | 1745 | stat_inc_gc_call_count(sbi, FOREGROUND); |
d147ea4a | 1746 | err = f2fs_gc(sbi, &gc_control); |
2e42b7f8 | 1747 | if (err && err != -ENODATA) |
f5a53edc JK |
1748 | goto out_err; |
1749 | } | |
1750 | ||
e4544b63 | 1751 | f2fs_down_write(&sbi->pin_sem); |
fd612648 | 1752 | |
9703d69d DJ |
1753 | err = f2fs_allocate_pinning_section(sbi); |
1754 | if (err) { | |
1755 | f2fs_up_write(&sbi->pin_sem); | |
1756 | goto out_err; | |
1757 | } | |
fd612648 | 1758 | |
d0b9e42a | 1759 | map.m_seg_type = CURSEG_COLD_DATA_PINNED; |
cd8fc522 | 1760 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRE_DIO); |
d4dd19ec | 1761 | file_dont_truncate(inode); |
d0b9e42a | 1762 | |
e4544b63 | 1763 | f2fs_up_write(&sbi->pin_sem); |
cad3836f | 1764 | |
88f2cfc5 | 1765 | expanded += map.m_len; |
e1175f02 | 1766 | sec_len -= map.m_len; |
f5a53edc | 1767 | map.m_lblk += map.m_len; |
e1175f02 | 1768 | if (!err && sec_len) |
f5a53edc JK |
1769 | goto next_alloc; |
1770 | ||
88f2cfc5 | 1771 | map.m_len = expanded; |
f5a53edc | 1772 | } else { |
cd8fc522 | 1773 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRE_AIO); |
88f2cfc5 | 1774 | expanded = map.m_len; |
f5a53edc JK |
1775 | } |
1776 | out_err: | |
a7de6086 | 1777 | if (err) { |
e12dd7bd | 1778 | pgoff_t last_off; |
fbfa2cc5 | 1779 | |
88f2cfc5 | 1780 | if (!expanded) |
a7de6086 | 1781 | return err; |
98397ff3 | 1782 | |
88f2cfc5 | 1783 | last_off = pg_start + expanded - 1; |
e12dd7bd JK |
1784 | |
1785 | /* update new size to the failed position */ | |
1061fd48 | 1786 | new_size = (last_off == pg_end) ? offset + len : |
e12dd7bd JK |
1787 | (loff_t)(last_off + 1) << PAGE_SHIFT; |
1788 | } else { | |
1789 | new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end; | |
fbfa2cc5 JK |
1790 | } |
1791 | ||
e8ed90a6 CY |
1792 | if (new_size > i_size_read(inode)) { |
1793 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1794 | file_set_keep_isize(inode); | |
1795 | else | |
1796 | f2fs_i_size_write(inode, new_size); | |
1797 | } | |
fbfa2cc5 | 1798 | |
a7de6086 | 1799 | return err; |
fbfa2cc5 JK |
1800 | } |
1801 | ||
1802 | static long f2fs_fallocate(struct file *file, int mode, | |
1803 | loff_t offset, loff_t len) | |
1804 | { | |
6131ffaa | 1805 | struct inode *inode = file_inode(file); |
587c0a42 | 1806 | long ret = 0; |
fbfa2cc5 | 1807 | |
1f227a3e JK |
1808 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
1809 | return -EIO; | |
00e09c0b CY |
1810 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode))) |
1811 | return -ENOSPC; | |
4c8ff709 CY |
1812 | if (!f2fs_is_compress_backend_ready(inode)) |
1813 | return -EOPNOTSUPP; | |
1f227a3e | 1814 | |
c998012b CY |
1815 | /* f2fs only support ->fallocate for regular file */ |
1816 | if (!S_ISREG(inode->i_mode)) | |
1817 | return -EINVAL; | |
1818 | ||
62230e0d | 1819 | if (IS_ENCRYPTED(inode) && |
f62185d0 | 1820 | (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE))) |
fcc85a4d JK |
1821 | return -EOPNOTSUPP; |
1822 | ||
b4ace337 | 1823 | if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | |
f62185d0 CY |
1824 | FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | |
1825 | FALLOC_FL_INSERT_RANGE)) | |
fbfa2cc5 JK |
1826 | return -EOPNOTSUPP; |
1827 | ||
5955102c | 1828 | inode_lock(inode); |
3375f696 | 1829 | |
278a6253 CY |
1830 | /* |
1831 | * Pinned file should not support partial truncation since the block | |
1832 | * can be used by applications. | |
1833 | */ | |
1834 | if ((f2fs_compressed_file(inode) || f2fs_is_pinned_file(inode)) && | |
1835 | (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE | | |
1836 | FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE))) { | |
1837 | ret = -EOPNOTSUPP; | |
1838 | goto out; | |
1839 | } | |
1840 | ||
958ed929 CY |
1841 | ret = file_modified(file); |
1842 | if (ret) | |
1843 | goto out; | |
1844 | ||
587c0a42 TY |
1845 | if (mode & FALLOC_FL_PUNCH_HOLE) { |
1846 | if (offset >= inode->i_size) | |
1847 | goto out; | |
1848 | ||
1cd75654 | 1849 | ret = f2fs_punch_hole(inode, offset, len); |
b4ace337 CY |
1850 | } else if (mode & FALLOC_FL_COLLAPSE_RANGE) { |
1851 | ret = f2fs_collapse_range(inode, offset, len); | |
75cd4e09 CY |
1852 | } else if (mode & FALLOC_FL_ZERO_RANGE) { |
1853 | ret = f2fs_zero_range(inode, offset, len, mode); | |
f62185d0 CY |
1854 | } else if (mode & FALLOC_FL_INSERT_RANGE) { |
1855 | ret = f2fs_insert_range(inode, offset, len); | |
b4ace337 | 1856 | } else { |
1cd75654 | 1857 | ret = f2fs_expand_inode_data(inode, offset, len, mode); |
b4ace337 | 1858 | } |
fbfa2cc5 | 1859 | |
3af60a49 | 1860 | if (!ret) { |
11cc6426 | 1861 | inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); |
7c45729a | 1862 | f2fs_mark_inode_dirty_sync(inode, false); |
d0239e1b | 1863 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
3af60a49 | 1864 | } |
3375f696 | 1865 | |
587c0a42 | 1866 | out: |
5955102c | 1867 | inode_unlock(inode); |
3375f696 | 1868 | |
c01e2853 | 1869 | trace_f2fs_fallocate(inode, mode, offset, len, ret); |
fbfa2cc5 JK |
1870 | return ret; |
1871 | } | |
1872 | ||
1e84371f JK |
1873 | static int f2fs_release_file(struct inode *inode, struct file *filp) |
1874 | { | |
de5307e4 | 1875 | /* |
146949de | 1876 | * f2fs_release_file is called at every close calls. So we should |
de5307e4 JK |
1877 | * not drop any inmemory pages by close called by other process. |
1878 | */ | |
1879 | if (!(filp->f_mode & FMODE_WRITE) || | |
1880 | atomic_read(&inode->i_writecount) != 1) | |
1881 | return 0; | |
1882 | ||
a46bebd5 | 1883 | inode_lock(inode); |
e53f8643 | 1884 | f2fs_abort_atomic_write(inode, true); |
a46bebd5 DJ |
1885 | inode_unlock(inode); |
1886 | ||
1e84371f JK |
1887 | return 0; |
1888 | } | |
1889 | ||
7a10f017 | 1890 | static int f2fs_file_flush(struct file *file, fl_owner_t id) |
fbfa2cc5 | 1891 | { |
7a10f017 JK |
1892 | struct inode *inode = file_inode(file); |
1893 | ||
1894 | /* | |
1895 | * If the process doing a transaction is crashed, we should do | |
1896 | * roll-back. Otherwise, other reader/write can see corrupted database | |
1897 | * until all the writers close its file. Since this should be done | |
1898 | * before dropping file lock, it needs to do in ->flush. | |
1899 | */ | |
ae267fc1 | 1900 | if (F2FS_I(inode)->atomic_write_task == current && |
a46bebd5 DJ |
1901 | (current->flags & PF_EXITING)) { |
1902 | inode_lock(inode); | |
3db1de0e | 1903 | f2fs_abort_atomic_write(inode, true); |
a46bebd5 DJ |
1904 | inode_unlock(inode); |
1905 | } | |
1906 | ||
7a10f017 | 1907 | return 0; |
fbfa2cc5 JK |
1908 | } |
1909 | ||
36098557 | 1910 | static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask) |
2c1d0305 CY |
1911 | { |
1912 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
99eabb91 JK |
1913 | u32 masked_flags = fi->i_flags & mask; |
1914 | ||
a7531039 JK |
1915 | /* mask can be shrunk by flags_valid selector */ |
1916 | iflags &= mask; | |
2c1d0305 CY |
1917 | |
1918 | /* Is it quota file? Do not allow user to mess with it */ | |
1919 | if (IS_NOQUOTA(inode)) | |
1920 | return -EPERM; | |
1921 | ||
99eabb91 | 1922 | if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) { |
2c2eb7a3 DR |
1923 | if (!f2fs_sb_has_casefold(F2FS_I_SB(inode))) |
1924 | return -EOPNOTSUPP; | |
1925 | if (!f2fs_empty_dir(inode)) | |
1926 | return -ENOTEMPTY; | |
1927 | } | |
1928 | ||
4c8ff709 CY |
1929 | if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) { |
1930 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
1931 | return -EOPNOTSUPP; | |
1932 | if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL)) | |
1933 | return -EINVAL; | |
1934 | } | |
1935 | ||
99eabb91 | 1936 | if ((iflags ^ masked_flags) & F2FS_COMPR_FL) { |
aa576970 | 1937 | if (masked_flags & F2FS_COMPR_FL) { |
78134d03 | 1938 | if (!f2fs_disable_compressed_file(inode)) |
2536ac68 | 1939 | return -EINVAL; |
8ee236dc | 1940 | } else { |
a995627e JK |
1941 | /* try to convert inline_data to support compression */ |
1942 | int err = f2fs_convert_inline_inode(inode); | |
1943 | if (err) | |
1944 | return err; | |
b5ab3276 CY |
1945 | |
1946 | f2fs_down_write(&F2FS_I(inode)->i_sem); | |
1947 | if (!f2fs_may_compress(inode) || | |
1948 | (S_ISREG(inode->i_mode) && | |
1949 | F2FS_HAS_BLOCKS(inode))) { | |
1950 | f2fs_up_write(&F2FS_I(inode)->i_sem); | |
519a5a2f | 1951 | return -EINVAL; |
b5ab3276 CY |
1952 | } |
1953 | err = set_compress_context(inode); | |
1954 | f2fs_up_write(&F2FS_I(inode)->i_sem); | |
1955 | ||
1956 | if (err) | |
1957 | return err; | |
4c8ff709 CY |
1958 | } |
1959 | } | |
4c8ff709 | 1960 | |
d5e5efa2 | 1961 | fi->i_flags = iflags | (fi->i_flags & ~mask); |
4c8ff709 CY |
1962 | f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) && |
1963 | (fi->i_flags & F2FS_NOCOMP_FL)); | |
2c1d0305 | 1964 | |
59c84408 | 1965 | if (fi->i_flags & F2FS_PROJINHERIT_FL) |
2c1d0305 CY |
1966 | set_inode_flag(inode, FI_PROJ_INHERIT); |
1967 | else | |
1968 | clear_inode_flag(inode, FI_PROJ_INHERIT); | |
1969 | ||
c62ebd35 | 1970 | inode_set_ctime_current(inode); |
2c1d0305 | 1971 | f2fs_set_inode_flags(inode); |
b32e0190 | 1972 | f2fs_mark_inode_dirty_sync(inode, true); |
2c1d0305 CY |
1973 | return 0; |
1974 | } | |
1975 | ||
9b1bb01c | 1976 | /* FS_IOC_[GS]ETFLAGS and FS_IOC_FS[GS]ETXATTR support */ |
36098557 EB |
1977 | |
1978 | /* | |
1979 | * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry | |
1980 | * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to | |
1981 | * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add | |
1982 | * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL. | |
9b1bb01c MS |
1983 | * |
1984 | * Translating flags to fsx_flags value used by FS_IOC_FSGETXATTR and | |
1985 | * FS_IOC_FSSETXATTR is done by the VFS. | |
36098557 EB |
1986 | */ |
1987 | ||
1988 | static const struct { | |
1989 | u32 iflag; | |
1990 | u32 fsflag; | |
1991 | } f2fs_fsflags_map[] = { | |
4c8ff709 | 1992 | { F2FS_COMPR_FL, FS_COMPR_FL }, |
36098557 EB |
1993 | { F2FS_SYNC_FL, FS_SYNC_FL }, |
1994 | { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL }, | |
1995 | { F2FS_APPEND_FL, FS_APPEND_FL }, | |
1996 | { F2FS_NODUMP_FL, FS_NODUMP_FL }, | |
1997 | { F2FS_NOATIME_FL, FS_NOATIME_FL }, | |
4c8ff709 | 1998 | { F2FS_NOCOMP_FL, FS_NOCOMP_FL }, |
36098557 EB |
1999 | { F2FS_INDEX_FL, FS_INDEX_FL }, |
2000 | { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL }, | |
2001 | { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL }, | |
2c2eb7a3 | 2002 | { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL }, |
36098557 EB |
2003 | }; |
2004 | ||
2005 | #define F2FS_GETTABLE_FS_FL ( \ | |
4c8ff709 | 2006 | FS_COMPR_FL | \ |
36098557 EB |
2007 | FS_SYNC_FL | \ |
2008 | FS_IMMUTABLE_FL | \ | |
2009 | FS_APPEND_FL | \ | |
2010 | FS_NODUMP_FL | \ | |
2011 | FS_NOATIME_FL | \ | |
4c8ff709 | 2012 | FS_NOCOMP_FL | \ |
36098557 EB |
2013 | FS_INDEX_FL | \ |
2014 | FS_DIRSYNC_FL | \ | |
2015 | FS_PROJINHERIT_FL | \ | |
2016 | FS_ENCRYPT_FL | \ | |
2017 | FS_INLINE_DATA_FL | \ | |
95ae251f | 2018 | FS_NOCOW_FL | \ |
fbc246a1 | 2019 | FS_VERITY_FL | \ |
2c2eb7a3 | 2020 | FS_CASEFOLD_FL) |
36098557 EB |
2021 | |
2022 | #define F2FS_SETTABLE_FS_FL ( \ | |
4c8ff709 | 2023 | FS_COMPR_FL | \ |
36098557 EB |
2024 | FS_SYNC_FL | \ |
2025 | FS_IMMUTABLE_FL | \ | |
2026 | FS_APPEND_FL | \ | |
2027 | FS_NODUMP_FL | \ | |
2028 | FS_NOATIME_FL | \ | |
4c8ff709 | 2029 | FS_NOCOMP_FL | \ |
36098557 | 2030 | FS_DIRSYNC_FL | \ |
2c2eb7a3 DR |
2031 | FS_PROJINHERIT_FL | \ |
2032 | FS_CASEFOLD_FL) | |
36098557 EB |
2033 | |
2034 | /* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */ | |
2035 | static inline u32 f2fs_iflags_to_fsflags(u32 iflags) | |
2036 | { | |
2037 | u32 fsflags = 0; | |
2038 | int i; | |
2039 | ||
2040 | for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++) | |
2041 | if (iflags & f2fs_fsflags_map[i].iflag) | |
2042 | fsflags |= f2fs_fsflags_map[i].fsflag; | |
2043 | ||
2044 | return fsflags; | |
2045 | } | |
2046 | ||
2047 | /* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */ | |
2048 | static inline u32 f2fs_fsflags_to_iflags(u32 fsflags) | |
2049 | { | |
2050 | u32 iflags = 0; | |
2051 | int i; | |
2052 | ||
2053 | for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++) | |
2054 | if (fsflags & f2fs_fsflags_map[i].fsflag) | |
2055 | iflags |= f2fs_fsflags_map[i].iflag; | |
2056 | ||
2057 | return iflags; | |
2058 | } | |
2059 | ||
d49f3e89 CY |
2060 | static int f2fs_ioc_getversion(struct file *filp, unsigned long arg) |
2061 | { | |
2062 | struct inode *inode = file_inode(filp); | |
2063 | ||
2064 | return put_user(inode->i_generation, (int __user *)arg); | |
2065 | } | |
2066 | ||
41e8f85a | 2067 | static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate) |
88b88a66 JK |
2068 | { |
2069 | struct inode *inode = file_inode(filp); | |
f2d40141 | 2070 | struct mnt_idmap *idmap = file_mnt_idmap(filp); |
743b620c JK |
2071 | struct f2fs_inode_info *fi = F2FS_I(inode); |
2072 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3db1de0e | 2073 | struct inode *pinode; |
4d8d45df | 2074 | loff_t isize; |
f4c9c743 | 2075 | int ret; |
88b88a66 | 2076 | |
01beba79 | 2077 | if (!inode_owner_or_capable(idmap, inode)) |
88b88a66 JK |
2078 | return -EACCES; |
2079 | ||
e811898c JK |
2080 | if (!S_ISREG(inode->i_mode)) |
2081 | return -EINVAL; | |
2082 | ||
038d0698 CY |
2083 | if (filp->f_flags & O_DIRECT) |
2084 | return -EINVAL; | |
2085 | ||
7fb17fe4 CY |
2086 | ret = mnt_want_write_file(filp); |
2087 | if (ret) | |
2088 | return ret; | |
2089 | ||
0fac558b CY |
2090 | inode_lock(inode); |
2091 | ||
c644af13 DJ |
2092 | if (!f2fs_disable_compressed_file(inode) || |
2093 | f2fs_is_pinned_file(inode)) { | |
9b56adcf FC |
2094 | ret = -EINVAL; |
2095 | goto out; | |
2096 | } | |
4c8ff709 | 2097 | |
3db1de0e | 2098 | if (f2fs_is_atomic_file(inode)) |
7fb17fe4 | 2099 | goto out; |
88b88a66 | 2100 | |
f4c9c743 CY |
2101 | ret = f2fs_convert_inline_inode(inode); |
2102 | if (ret) | |
7fb17fe4 | 2103 | goto out; |
88b88a66 | 2104 | |
054cb289 | 2105 | f2fs_down_write(&fi->i_gc_rwsem[WRITE]); |
6f8d4455 | 2106 | |
31867b23 JK |
2107 | /* |
2108 | * Should wait end_io to count F2FS_WB_CP_DATA correctly by | |
2109 | * f2fs_is_atomic_file. | |
2110 | */ | |
2111 | if (get_dirty_pages(inode)) | |
054cb289 | 2112 | f2fs_warn(sbi, "Unexpected flush for atomic writes: ino=%lu, npages=%u", |
dcbb4c10 | 2113 | inode->i_ino, get_dirty_pages(inode)); |
c27753d6 | 2114 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); |
6f8d4455 | 2115 | if (ret) { |
054cb289 | 2116 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); |
684ca7e5 | 2117 | goto out; |
6f8d4455 | 2118 | } |
31867b23 | 2119 | |
a46bebd5 DJ |
2120 | /* Check if the inode already has a COW inode */ |
2121 | if (fi->cow_inode == NULL) { | |
2122 | /* Create a COW inode for atomic write */ | |
2123 | pinode = f2fs_iget(inode->i_sb, fi->i_pino); | |
2124 | if (IS_ERR(pinode)) { | |
2125 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); | |
2126 | ret = PTR_ERR(pinode); | |
2127 | goto out; | |
2128 | } | |
3db1de0e | 2129 | |
10383068 | 2130 | ret = f2fs_get_tmpfile(idmap, pinode, &fi->cow_inode); |
a46bebd5 DJ |
2131 | iput(pinode); |
2132 | if (ret) { | |
2133 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); | |
2134 | goto out; | |
2135 | } | |
2136 | ||
2137 | set_inode_flag(fi->cow_inode, FI_COW_FILE); | |
2138 | clear_inode_flag(fi->cow_inode, FI_INLINE_DATA); | |
2139 | } else { | |
2140 | /* Reuse the already created COW inode */ | |
b851ee6b CY |
2141 | ret = f2fs_do_truncate_blocks(fi->cow_inode, 0, true); |
2142 | if (ret) { | |
2143 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); | |
2144 | goto out; | |
2145 | } | |
6f8d4455 | 2146 | } |
4d8d45df DJ |
2147 | |
2148 | f2fs_write_inode(inode, NULL); | |
31867b23 | 2149 | |
b4dac120 | 2150 | stat_inc_atomic_inode(inode); |
743b620c | 2151 | |
054afda9 | 2152 | set_inode_flag(inode, FI_ATOMIC_FILE); |
41e8f85a DJ |
2153 | |
2154 | isize = i_size_read(inode); | |
2155 | fi->original_i_size = isize; | |
2156 | if (truncate) { | |
2157 | set_inode_flag(inode, FI_ATOMIC_REPLACE); | |
2158 | truncate_inode_pages_final(inode->i_mapping); | |
2159 | f2fs_i_size_write(inode, 0); | |
2160 | isize = 0; | |
2161 | } | |
2162 | f2fs_i_size_write(fi->cow_inode, isize); | |
2163 | ||
054cb289 | 2164 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); |
684ca7e5 | 2165 | |
054cb289 YY |
2166 | f2fs_update_time(sbi, REQ_TIME); |
2167 | fi->atomic_write_task = current; | |
26a28a0c | 2168 | stat_update_max_atomic_write(inode); |
f8e2f32b | 2169 | fi->atomic_write_cnt = 0; |
684ca7e5 | 2170 | out: |
0fac558b | 2171 | inode_unlock(inode); |
7fb17fe4 | 2172 | mnt_drop_write_file(filp); |
c27753d6 | 2173 | return ret; |
88b88a66 JK |
2174 | } |
2175 | ||
2176 | static int f2fs_ioc_commit_atomic_write(struct file *filp) | |
2177 | { | |
2178 | struct inode *inode = file_inode(filp); | |
01beba79 | 2179 | struct mnt_idmap *idmap = file_mnt_idmap(filp); |
88b88a66 JK |
2180 | int ret; |
2181 | ||
01beba79 | 2182 | if (!inode_owner_or_capable(idmap, inode)) |
88b88a66 JK |
2183 | return -EACCES; |
2184 | ||
2185 | ret = mnt_want_write_file(filp); | |
2186 | if (ret) | |
2187 | return ret; | |
2188 | ||
6f8d4455 | 2189 | f2fs_balance_fs(F2FS_I_SB(inode), true); |
0fac558b | 2190 | |
6f8d4455 | 2191 | inode_lock(inode); |
1dc0f899 | 2192 | |
6282adbf | 2193 | if (f2fs_is_atomic_file(inode)) { |
3db1de0e | 2194 | ret = f2fs_commit_atomic_write(inode); |
743b620c | 2195 | if (!ret) |
4d8d45df DJ |
2196 | ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true); |
2197 | ||
2198 | f2fs_abort_atomic_write(inode, ret); | |
26a28a0c | 2199 | } else { |
774e1b78 | 2200 | ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false); |
6282adbf | 2201 | } |
4d8d45df | 2202 | |
0fac558b | 2203 | inode_unlock(inode); |
1e84371f JK |
2204 | mnt_drop_write_file(filp); |
2205 | return ret; | |
2206 | } | |
2207 | ||
23339e57 DJ |
2208 | static int f2fs_ioc_abort_atomic_write(struct file *filp) |
2209 | { | |
2210 | struct inode *inode = file_inode(filp); | |
01beba79 | 2211 | struct mnt_idmap *idmap = file_mnt_idmap(filp); |
23339e57 DJ |
2212 | int ret; |
2213 | ||
01beba79 | 2214 | if (!inode_owner_or_capable(idmap, inode)) |
23339e57 DJ |
2215 | return -EACCES; |
2216 | ||
2217 | ret = mnt_want_write_file(filp); | |
2218 | if (ret) | |
2219 | return ret; | |
2220 | ||
2221 | inode_lock(inode); | |
2222 | ||
e53f8643 | 2223 | f2fs_abort_atomic_write(inode, true); |
23339e57 DJ |
2224 | |
2225 | inode_unlock(inode); | |
2226 | ||
2227 | mnt_drop_write_file(filp); | |
2228 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); | |
2229 | return ret; | |
2230 | } | |
2231 | ||
ee745e47 CY |
2232 | int f2fs_do_shutdown(struct f2fs_sb_info *sbi, unsigned int flag, |
2233 | bool readonly) | |
1abff93d | 2234 | { |
1abff93d | 2235 | struct super_block *sb = sbi->sb; |
2a96d8ad | 2236 | int ret = 0; |
1abff93d | 2237 | |
ee745e47 | 2238 | switch (flag) { |
1abff93d | 2239 | case F2FS_GOING_DOWN_FULLSYNC: |
982c3b30 | 2240 | ret = bdev_freeze(sb->s_bdev); |
040f04bd | 2241 | if (ret) |
d027c484 | 2242 | goto out; |
a9cfee0e | 2243 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
982c3b30 | 2244 | bdev_thaw(sb->s_bdev); |
1abff93d JK |
2245 | break; |
2246 | case F2FS_GOING_DOWN_METASYNC: | |
2247 | /* do checkpoint only */ | |
d027c484 | 2248 | ret = f2fs_sync_fs(sb, 1); |
7d009e04 CY |
2249 | if (ret) { |
2250 | if (ret == -EIO) | |
2251 | ret = 0; | |
d027c484 | 2252 | goto out; |
7d009e04 | 2253 | } |
a9cfee0e | 2254 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
1abff93d JK |
2255 | break; |
2256 | case F2FS_GOING_DOWN_NOSYNC: | |
a9cfee0e | 2257 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
1abff93d | 2258 | break; |
c912a829 | 2259 | case F2FS_GOING_DOWN_METAFLUSH: |
4d57b86d | 2260 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO); |
a9cfee0e | 2261 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
c912a829 | 2262 | break; |
0cd6d9b0 JK |
2263 | case F2FS_GOING_DOWN_NEED_FSCK: |
2264 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
db610a64 JK |
2265 | set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); |
2266 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
0cd6d9b0 JK |
2267 | /* do checkpoint only */ |
2268 | ret = f2fs_sync_fs(sb, 1); | |
7d009e04 CY |
2269 | if (ret == -EIO) |
2270 | ret = 0; | |
db610a64 | 2271 | goto out; |
1abff93d | 2272 | default: |
7fb17fe4 CY |
2273 | ret = -EINVAL; |
2274 | goto out; | |
1abff93d | 2275 | } |
7950e9ac | 2276 | |
ee745e47 CY |
2277 | if (readonly) |
2278 | goto out; | |
2279 | ||
4d57b86d CY |
2280 | f2fs_stop_gc_thread(sbi); |
2281 | f2fs_stop_discard_thread(sbi); | |
7950e9ac | 2282 | |
4d57b86d | 2283 | f2fs_drop_discard_cmd(sbi); |
7950e9ac CY |
2284 | clear_opt(sbi, DISCARD); |
2285 | ||
d0239e1b | 2286 | f2fs_update_time(sbi, REQ_TIME); |
7fb17fe4 | 2287 | out: |
559e87c4 | 2288 | |
ee745e47 CY |
2289 | trace_f2fs_shutdown(sbi, flag, ret); |
2290 | ||
2291 | return ret; | |
2292 | } | |
2293 | ||
2294 | static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg) | |
2295 | { | |
2296 | struct inode *inode = file_inode(filp); | |
2297 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2298 | __u32 in; | |
2299 | int ret; | |
2300 | bool need_drop = false, readonly = false; | |
2301 | ||
2302 | if (!capable(CAP_SYS_ADMIN)) | |
2303 | return -EPERM; | |
2304 | ||
2305 | if (get_user(in, (__u32 __user *)arg)) | |
2306 | return -EFAULT; | |
2307 | ||
2308 | if (in != F2FS_GOING_DOWN_FULLSYNC) { | |
2309 | ret = mnt_want_write_file(filp); | |
2310 | if (ret) { | |
2311 | if (ret != -EROFS) | |
2312 | return ret; | |
2313 | ||
2314 | /* fallback to nosync shutdown for readonly fs */ | |
2315 | in = F2FS_GOING_DOWN_NOSYNC; | |
2316 | readonly = true; | |
2317 | } else { | |
2318 | need_drop = true; | |
2319 | } | |
2320 | } | |
2321 | ||
2322 | ret = f2fs_do_shutdown(sbi, in, readonly); | |
2323 | ||
2324 | if (need_drop) | |
2325 | mnt_drop_write_file(filp); | |
559e87c4 | 2326 | |
7fb17fe4 | 2327 | return ret; |
1abff93d JK |
2328 | } |
2329 | ||
52656e6c JK |
2330 | static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg) |
2331 | { | |
2332 | struct inode *inode = file_inode(filp); | |
2333 | struct super_block *sb = inode->i_sb; | |
52656e6c JK |
2334 | struct fstrim_range range; |
2335 | int ret; | |
4b2fecc8 | 2336 | |
52656e6c JK |
2337 | if (!capable(CAP_SYS_ADMIN)) |
2338 | return -EPERM; | |
4b2fecc8 | 2339 | |
7d20c8ab | 2340 | if (!f2fs_hw_support_discard(F2FS_SB(sb))) |
52656e6c | 2341 | return -EOPNOTSUPP; |
4b2fecc8 | 2342 | |
52656e6c JK |
2343 | if (copy_from_user(&range, (struct fstrim_range __user *)arg, |
2344 | sizeof(range))) | |
2345 | return -EFAULT; | |
4b2fecc8 | 2346 | |
7fb17fe4 CY |
2347 | ret = mnt_want_write_file(filp); |
2348 | if (ret) | |
2349 | return ret; | |
2350 | ||
52656e6c | 2351 | range.minlen = max((unsigned int)range.minlen, |
7b47ef52 | 2352 | bdev_discard_granularity(sb->s_bdev)); |
52656e6c | 2353 | ret = f2fs_trim_fs(F2FS_SB(sb), &range); |
7fb17fe4 | 2354 | mnt_drop_write_file(filp); |
52656e6c JK |
2355 | if (ret < 0) |
2356 | return ret; | |
4b2fecc8 | 2357 | |
52656e6c JK |
2358 | if (copy_to_user((struct fstrim_range __user *)arg, &range, |
2359 | sizeof(range))) | |
2360 | return -EFAULT; | |
d0239e1b | 2361 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
52656e6c JK |
2362 | return 0; |
2363 | } | |
2364 | ||
f424f664 JK |
2365 | static bool uuid_is_nonzero(__u8 u[16]) |
2366 | { | |
2367 | int i; | |
2368 | ||
2369 | for (i = 0; i < 16; i++) | |
2370 | if (u[i]) | |
2371 | return true; | |
2372 | return false; | |
2373 | } | |
2374 | ||
2375 | static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg) | |
2376 | { | |
f424f664 | 2377 | struct inode *inode = file_inode(filp); |
fa18d87c | 2378 | int ret; |
f424f664 | 2379 | |
7beb01f7 | 2380 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode))) |
ead710b7 CY |
2381 | return -EOPNOTSUPP; |
2382 | ||
fa18d87c | 2383 | ret = fscrypt_ioctl_set_policy(filp, (const void __user *)arg); |
d0239e1b | 2384 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
fa18d87c | 2385 | return ret; |
f424f664 JK |
2386 | } |
2387 | ||
2388 | static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg) | |
2389 | { | |
7beb01f7 | 2390 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) |
ead710b7 | 2391 | return -EOPNOTSUPP; |
db717d8e | 2392 | return fscrypt_ioctl_get_policy(filp, (void __user *)arg); |
f424f664 JK |
2393 | } |
2394 | ||
2395 | static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg) | |
2396 | { | |
2397 | struct inode *inode = file_inode(filp); | |
2398 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
5eaac835 | 2399 | u8 encrypt_pw_salt[16]; |
f424f664 JK |
2400 | int err; |
2401 | ||
7beb01f7 | 2402 | if (!f2fs_sb_has_encrypt(sbi)) |
f424f664 JK |
2403 | return -EOPNOTSUPP; |
2404 | ||
f424f664 JK |
2405 | err = mnt_want_write_file(filp); |
2406 | if (err) | |
2407 | return err; | |
2408 | ||
e4544b63 | 2409 | f2fs_down_write(&sbi->sb_lock); |
d0d3f1b3 CY |
2410 | |
2411 | if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt)) | |
2412 | goto got_it; | |
2413 | ||
f424f664 JK |
2414 | /* update superblock with uuid */ |
2415 | generate_random_uuid(sbi->raw_super->encrypt_pw_salt); | |
2416 | ||
c5bda1c8 | 2417 | err = f2fs_commit_super(sbi, false); |
f424f664 JK |
2418 | if (err) { |
2419 | /* undo new data */ | |
2420 | memset(sbi->raw_super->encrypt_pw_salt, 0, 16); | |
d0d3f1b3 | 2421 | goto out_err; |
f424f664 JK |
2422 | } |
2423 | got_it: | |
5eaac835 | 2424 | memcpy(encrypt_pw_salt, sbi->raw_super->encrypt_pw_salt, 16); |
d0d3f1b3 | 2425 | out_err: |
e4544b63 | 2426 | f2fs_up_write(&sbi->sb_lock); |
d0d3f1b3 | 2427 | mnt_drop_write_file(filp); |
5eaac835 CY |
2428 | |
2429 | if (!err && copy_to_user((__u8 __user *)arg, encrypt_pw_salt, 16)) | |
2430 | err = -EFAULT; | |
2431 | ||
d0d3f1b3 | 2432 | return err; |
f424f664 JK |
2433 | } |
2434 | ||
8ce589c7 EB |
2435 | static int f2fs_ioc_get_encryption_policy_ex(struct file *filp, |
2436 | unsigned long arg) | |
2437 | { | |
2438 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2439 | return -EOPNOTSUPP; | |
2440 | ||
2441 | return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg); | |
2442 | } | |
2443 | ||
2444 | static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg) | |
2445 | { | |
2446 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2447 | return -EOPNOTSUPP; | |
2448 | ||
2449 | return fscrypt_ioctl_add_key(filp, (void __user *)arg); | |
2450 | } | |
2451 | ||
2452 | static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg) | |
2453 | { | |
2454 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2455 | return -EOPNOTSUPP; | |
2456 | ||
2457 | return fscrypt_ioctl_remove_key(filp, (void __user *)arg); | |
2458 | } | |
2459 | ||
2460 | static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp, | |
2461 | unsigned long arg) | |
2462 | { | |
2463 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2464 | return -EOPNOTSUPP; | |
2465 | ||
2466 | return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg); | |
2467 | } | |
2468 | ||
2469 | static int f2fs_ioc_get_encryption_key_status(struct file *filp, | |
2470 | unsigned long arg) | |
2471 | { | |
2472 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2473 | return -EOPNOTSUPP; | |
2474 | ||
2475 | return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); | |
2476 | } | |
2477 | ||
ee446e1a EB |
2478 | static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg) |
2479 | { | |
2480 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2481 | return -EOPNOTSUPP; | |
2482 | ||
2483 | return fscrypt_ioctl_get_nonce(filp, (void __user *)arg); | |
2484 | } | |
2485 | ||
c1c1b583 CY |
2486 | static int f2fs_ioc_gc(struct file *filp, unsigned long arg) |
2487 | { | |
2488 | struct inode *inode = file_inode(filp); | |
2489 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
d147ea4a JK |
2490 | struct f2fs_gc_control gc_control = { .victim_segno = NULL_SEGNO, |
2491 | .no_bg_gc = false, | |
c81d5bae JK |
2492 | .should_migrate_blocks = false, |
2493 | .nr_free_secs = 0 }; | |
d530d4d8 | 2494 | __u32 sync; |
7fb17fe4 | 2495 | int ret; |
c1c1b583 CY |
2496 | |
2497 | if (!capable(CAP_SYS_ADMIN)) | |
2498 | return -EPERM; | |
2499 | ||
d530d4d8 | 2500 | if (get_user(sync, (__u32 __user *)arg)) |
c1c1b583 CY |
2501 | return -EFAULT; |
2502 | ||
d530d4d8 CY |
2503 | if (f2fs_readonly(sbi->sb)) |
2504 | return -EROFS; | |
c1c1b583 | 2505 | |
7fb17fe4 CY |
2506 | ret = mnt_want_write_file(filp); |
2507 | if (ret) | |
2508 | return ret; | |
2509 | ||
d530d4d8 | 2510 | if (!sync) { |
e4544b63 | 2511 | if (!f2fs_down_write_trylock(&sbi->gc_lock)) { |
7fb17fe4 CY |
2512 | ret = -EBUSY; |
2513 | goto out; | |
2514 | } | |
d530d4d8 | 2515 | } else { |
e4544b63 | 2516 | f2fs_down_write(&sbi->gc_lock); |
c1c1b583 CY |
2517 | } |
2518 | ||
d147ea4a JK |
2519 | gc_control.init_gc_type = sync ? FG_GC : BG_GC; |
2520 | gc_control.err_gc_skipped = sync; | |
9bf1dcbd | 2521 | stat_inc_gc_call_count(sbi, FOREGROUND); |
d147ea4a | 2522 | ret = f2fs_gc(sbi, &gc_control); |
7fb17fe4 CY |
2523 | out: |
2524 | mnt_drop_write_file(filp); | |
2525 | return ret; | |
c1c1b583 CY |
2526 | } |
2527 | ||
34178b1b | 2528 | static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range) |
34dc77ad | 2529 | { |
34178b1b | 2530 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp)); |
d147ea4a JK |
2531 | struct f2fs_gc_control gc_control = { |
2532 | .init_gc_type = range->sync ? FG_GC : BG_GC, | |
2533 | .no_bg_gc = false, | |
2534 | .should_migrate_blocks = false, | |
c81d5bae JK |
2535 | .err_gc_skipped = range->sync, |
2536 | .nr_free_secs = 0 }; | |
34dc77ad JK |
2537 | u64 end; |
2538 | int ret; | |
2539 | ||
2540 | if (!capable(CAP_SYS_ADMIN)) | |
2541 | return -EPERM; | |
34dc77ad JK |
2542 | if (f2fs_readonly(sbi->sb)) |
2543 | return -EROFS; | |
2544 | ||
34178b1b CY |
2545 | end = range->start + range->len; |
2546 | if (end < range->start || range->start < MAIN_BLKADDR(sbi) || | |
fbbf7799 | 2547 | end >= MAX_BLKADDR(sbi)) |
b82f6e34 | 2548 | return -EINVAL; |
b82f6e34 | 2549 | |
34dc77ad JK |
2550 | ret = mnt_want_write_file(filp); |
2551 | if (ret) | |
2552 | return ret; | |
2553 | ||
34dc77ad | 2554 | do_more: |
34178b1b | 2555 | if (!range->sync) { |
e4544b63 | 2556 | if (!f2fs_down_write_trylock(&sbi->gc_lock)) { |
34dc77ad JK |
2557 | ret = -EBUSY; |
2558 | goto out; | |
2559 | } | |
2560 | } else { | |
e4544b63 | 2561 | f2fs_down_write(&sbi->gc_lock); |
34dc77ad JK |
2562 | } |
2563 | ||
d147ea4a | 2564 | gc_control.victim_segno = GET_SEGNO(sbi, range->start); |
9bf1dcbd | 2565 | stat_inc_gc_call_count(sbi, FOREGROUND); |
d147ea4a | 2566 | ret = f2fs_gc(sbi, &gc_control); |
97767500 QZ |
2567 | if (ret) { |
2568 | if (ret == -EBUSY) | |
2569 | ret = -EAGAIN; | |
2570 | goto out; | |
2571 | } | |
074b5ea2 | 2572 | range->start += CAP_BLKS_PER_SEC(sbi); |
34178b1b | 2573 | if (range->start <= end) |
34dc77ad JK |
2574 | goto do_more; |
2575 | out: | |
2576 | mnt_drop_write_file(filp); | |
2577 | return ret; | |
2578 | } | |
2579 | ||
34178b1b CY |
2580 | static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg) |
2581 | { | |
2582 | struct f2fs_gc_range range; | |
2583 | ||
2584 | if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg, | |
2585 | sizeof(range))) | |
2586 | return -EFAULT; | |
2587 | return __f2fs_ioc_gc_range(filp, &range); | |
2588 | } | |
2589 | ||
ddf1eca4 | 2590 | static int f2fs_ioc_write_checkpoint(struct file *filp) |
456b88e4 CY |
2591 | { |
2592 | struct inode *inode = file_inode(filp); | |
2593 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
7fb17fe4 | 2594 | int ret; |
456b88e4 CY |
2595 | |
2596 | if (!capable(CAP_SYS_ADMIN)) | |
2597 | return -EPERM; | |
2598 | ||
2599 | if (f2fs_readonly(sbi->sb)) | |
2600 | return -EROFS; | |
2601 | ||
4354994f | 2602 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
dcbb4c10 | 2603 | f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled."); |
4354994f DR |
2604 | return -EINVAL; |
2605 | } | |
2606 | ||
7fb17fe4 CY |
2607 | ret = mnt_want_write_file(filp); |
2608 | if (ret) | |
2609 | return ret; | |
2610 | ||
2611 | ret = f2fs_sync_fs(sbi->sb, 1); | |
2612 | ||
2613 | mnt_drop_write_file(filp); | |
2614 | return ret; | |
456b88e4 CY |
2615 | } |
2616 | ||
d323d005 CY |
2617 | static int f2fs_defragment_range(struct f2fs_sb_info *sbi, |
2618 | struct file *filp, | |
2619 | struct f2fs_defragment *range) | |
2620 | { | |
2621 | struct inode *inode = file_inode(filp); | |
f3d98e74 | 2622 | struct f2fs_map_blocks map = { .m_next_extent = NULL, |
5f029c04 | 2623 | .m_seg_type = NO_CHECK_TYPE, |
f4f0b677 | 2624 | .m_may_create = false }; |
fe59109a | 2625 | struct extent_info ei = {}; |
f3d98e74 | 2626 | pgoff_t pg_start, pg_end, next_pgofs; |
d323d005 | 2627 | unsigned int total = 0, sec_num; |
d323d005 CY |
2628 | block_t blk_end = 0; |
2629 | bool fragmented = false; | |
2630 | int err; | |
2631 | ||
2c4db1a6 | 2632 | f2fs_balance_fs(sbi, true); |
d323d005 | 2633 | |
5955102c | 2634 | inode_lock(inode); |
19708015 ZN |
2635 | pg_start = range->start >> PAGE_SHIFT; |
2636 | pg_end = min_t(pgoff_t, | |
2637 | (range->start + range->len) >> PAGE_SHIFT, | |
2638 | DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE)); | |
d323d005 | 2639 | |
7cd2e5f7 YL |
2640 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
2641 | err = -EINVAL; | |
2642 | goto unlock_out; | |
2643 | } | |
2644 | ||
1018a546 CY |
2645 | /* if in-place-update policy is enabled, don't waste time here */ |
2646 | set_inode_flag(inode, FI_OPU_WRITE); | |
2647 | if (f2fs_should_update_inplace(inode, NULL)) { | |
2648 | err = -EINVAL; | |
2649 | goto out; | |
2650 | } | |
2651 | ||
d323d005 | 2652 | /* writeback all dirty pages in the range */ |
19708015 ZN |
2653 | err = filemap_write_and_wait_range(inode->i_mapping, |
2654 | pg_start << PAGE_SHIFT, | |
2655 | (pg_end << PAGE_SHIFT) - 1); | |
d323d005 CY |
2656 | if (err) |
2657 | goto out; | |
2658 | ||
2659 | /* | |
2660 | * lookup mapping info in extent cache, skip defragmenting if physical | |
2661 | * block addresses are continuous. | |
2662 | */ | |
e7547dac | 2663 | if (f2fs_lookup_read_extent_cache(inode, pg_start, &ei)) { |
d323d005 CY |
2664 | if (ei.fofs + ei.len >= pg_end) |
2665 | goto out; | |
2666 | } | |
2667 | ||
2668 | map.m_lblk = pg_start; | |
f3d98e74 | 2669 | map.m_next_pgofs = &next_pgofs; |
d323d005 CY |
2670 | |
2671 | /* | |
2672 | * lookup mapping info in dnode page cache, skip defragmenting if all | |
2673 | * physical block addresses are continuous even if there are hole(s) | |
2674 | * in logical blocks. | |
2675 | */ | |
2676 | while (map.m_lblk < pg_end) { | |
a1c1e9b7 | 2677 | map.m_len = pg_end - map.m_lblk; |
cd8fc522 | 2678 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DEFAULT); |
d323d005 CY |
2679 | if (err) |
2680 | goto out; | |
2681 | ||
2682 | if (!(map.m_flags & F2FS_MAP_FLAGS)) { | |
f3d98e74 | 2683 | map.m_lblk = next_pgofs; |
d323d005 CY |
2684 | continue; |
2685 | } | |
2686 | ||
25a912e5 | 2687 | if (blk_end && blk_end != map.m_pblk) |
d323d005 | 2688 | fragmented = true; |
25a912e5 CY |
2689 | |
2690 | /* record total count of block that we're going to move */ | |
2691 | total += map.m_len; | |
2692 | ||
d323d005 CY |
2693 | blk_end = map.m_pblk + map.m_len; |
2694 | ||
2695 | map.m_lblk += map.m_len; | |
d323d005 CY |
2696 | } |
2697 | ||
d3a1a0e1 CY |
2698 | if (!fragmented) { |
2699 | total = 0; | |
d323d005 | 2700 | goto out; |
d3a1a0e1 | 2701 | } |
d323d005 | 2702 | |
074b5ea2 | 2703 | sec_num = DIV_ROUND_UP(total, CAP_BLKS_PER_SEC(sbi)); |
d323d005 CY |
2704 | |
2705 | /* | |
2706 | * make sure there are enough free section for LFS allocation, this can | |
2707 | * avoid defragment running in SSR mode when free section are allocated | |
2708 | * intensively | |
2709 | */ | |
7f3037a5 | 2710 | if (has_not_enough_free_secs(sbi, 0, sec_num)) { |
d323d005 CY |
2711 | err = -EAGAIN; |
2712 | goto out; | |
2713 | } | |
2714 | ||
25a912e5 CY |
2715 | map.m_lblk = pg_start; |
2716 | map.m_len = pg_end - pg_start; | |
2717 | total = 0; | |
2718 | ||
d323d005 CY |
2719 | while (map.m_lblk < pg_end) { |
2720 | pgoff_t idx; | |
2721 | int cnt = 0; | |
2722 | ||
2723 | do_map: | |
a1c1e9b7 | 2724 | map.m_len = pg_end - map.m_lblk; |
cd8fc522 | 2725 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DEFAULT); |
d323d005 CY |
2726 | if (err) |
2727 | goto clear_out; | |
2728 | ||
2729 | if (!(map.m_flags & F2FS_MAP_FLAGS)) { | |
f3d98e74 | 2730 | map.m_lblk = next_pgofs; |
d3a1a0e1 | 2731 | goto check; |
d323d005 CY |
2732 | } |
2733 | ||
1018a546 | 2734 | set_inode_flag(inode, FI_SKIP_WRITES); |
d323d005 CY |
2735 | |
2736 | idx = map.m_lblk; | |
a60108f7 JK |
2737 | while (idx < map.m_lblk + map.m_len && |
2738 | cnt < BLKS_PER_SEG(sbi)) { | |
d323d005 CY |
2739 | struct page *page; |
2740 | ||
4d57b86d | 2741 | page = f2fs_get_lock_data_page(inode, idx, true); |
d323d005 CY |
2742 | if (IS_ERR(page)) { |
2743 | err = PTR_ERR(page); | |
2744 | goto clear_out; | |
2745 | } | |
2746 | ||
2747 | set_page_dirty(page); | |
2d1fe8a8 | 2748 | set_page_private_gcing(page); |
d323d005 CY |
2749 | f2fs_put_page(page, 1); |
2750 | ||
2751 | idx++; | |
2752 | cnt++; | |
2753 | total++; | |
2754 | } | |
2755 | ||
2756 | map.m_lblk = idx; | |
d3a1a0e1 | 2757 | check: |
a60108f7 | 2758 | if (map.m_lblk < pg_end && cnt < BLKS_PER_SEG(sbi)) |
d323d005 CY |
2759 | goto do_map; |
2760 | ||
1018a546 | 2761 | clear_inode_flag(inode, FI_SKIP_WRITES); |
d323d005 CY |
2762 | |
2763 | err = filemap_fdatawrite(inode->i_mapping); | |
2764 | if (err) | |
2765 | goto out; | |
2766 | } | |
2767 | clear_out: | |
1018a546 | 2768 | clear_inode_flag(inode, FI_SKIP_WRITES); |
d323d005 | 2769 | out: |
1018a546 | 2770 | clear_inode_flag(inode, FI_OPU_WRITE); |
7cd2e5f7 | 2771 | unlock_out: |
5955102c | 2772 | inode_unlock(inode); |
d323d005 | 2773 | if (!err) |
09cbfeaf | 2774 | range->len = (u64)total << PAGE_SHIFT; |
d323d005 CY |
2775 | return err; |
2776 | } | |
2777 | ||
2778 | static int f2fs_ioc_defragment(struct file *filp, unsigned long arg) | |
2779 | { | |
2780 | struct inode *inode = file_inode(filp); | |
2781 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2782 | struct f2fs_defragment range; | |
2783 | int err; | |
2784 | ||
2785 | if (!capable(CAP_SYS_ADMIN)) | |
2786 | return -EPERM; | |
2787 | ||
7eab0c0d | 2788 | if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode)) |
d323d005 CY |
2789 | return -EINVAL; |
2790 | ||
d7563861 KM |
2791 | if (f2fs_readonly(sbi->sb)) |
2792 | return -EROFS; | |
d323d005 CY |
2793 | |
2794 | if (copy_from_user(&range, (struct f2fs_defragment __user *)arg, | |
d7563861 KM |
2795 | sizeof(range))) |
2796 | return -EFAULT; | |
d323d005 CY |
2797 | |
2798 | /* verify alignment of offset & size */ | |
d7563861 KM |
2799 | if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1)) |
2800 | return -EINVAL; | |
d323d005 | 2801 | |
1941d7bc | 2802 | if (unlikely((range.start + range.len) >> PAGE_SHIFT > |
6d1451bf | 2803 | max_file_blocks(inode))) |
d7563861 KM |
2804 | return -EINVAL; |
2805 | ||
2806 | err = mnt_want_write_file(filp); | |
2807 | if (err) | |
2808 | return err; | |
1941d7bc | 2809 | |
d323d005 | 2810 | err = f2fs_defragment_range(sbi, filp, &range); |
d7563861 KM |
2811 | mnt_drop_write_file(filp); |
2812 | ||
fa18d87c ZN |
2813 | if (range.len) |
2814 | f2fs_update_time(sbi, REQ_TIME); | |
d323d005 | 2815 | if (err < 0) |
d7563861 | 2816 | return err; |
d323d005 CY |
2817 | |
2818 | if (copy_to_user((struct f2fs_defragment __user *)arg, &range, | |
2819 | sizeof(range))) | |
d7563861 KM |
2820 | return -EFAULT; |
2821 | ||
2822 | return 0; | |
d323d005 CY |
2823 | } |
2824 | ||
4dd6f977 JK |
2825 | static int f2fs_move_file_range(struct file *file_in, loff_t pos_in, |
2826 | struct file *file_out, loff_t pos_out, size_t len) | |
2827 | { | |
2828 | struct inode *src = file_inode(file_in); | |
2829 | struct inode *dst = file_inode(file_out); | |
2830 | struct f2fs_sb_info *sbi = F2FS_I_SB(src); | |
2831 | size_t olen = len, dst_max_i_size = 0; | |
2832 | size_t dst_osize; | |
2833 | int ret; | |
2834 | ||
2835 | if (file_in->f_path.mnt != file_out->f_path.mnt || | |
2836 | src->i_sb != dst->i_sb) | |
2837 | return -EXDEV; | |
2838 | ||
2839 | if (unlikely(f2fs_readonly(src->i_sb))) | |
2840 | return -EROFS; | |
2841 | ||
fe8494bf CY |
2842 | if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode)) |
2843 | return -EINVAL; | |
4dd6f977 | 2844 | |
62230e0d | 2845 | if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst)) |
4dd6f977 JK |
2846 | return -EOPNOTSUPP; |
2847 | ||
aad1383c DR |
2848 | if (pos_out < 0 || pos_in < 0) |
2849 | return -EINVAL; | |
2850 | ||
d95fd91c FL |
2851 | if (src == dst) { |
2852 | if (pos_in == pos_out) | |
2853 | return 0; | |
2854 | if (pos_out > pos_in && pos_out < pos_in + len) | |
2855 | return -EINVAL; | |
2856 | } | |
2857 | ||
4dd6f977 | 2858 | inode_lock(src); |
20a3d61d | 2859 | if (src != dst) { |
bb06664a CY |
2860 | ret = -EBUSY; |
2861 | if (!inode_trylock(dst)) | |
2862 | goto out; | |
20a3d61d | 2863 | } |
4dd6f977 | 2864 | |
e07230da CY |
2865 | if (f2fs_compressed_file(src) || f2fs_compressed_file(dst) || |
2866 | f2fs_is_pinned_file(src) || f2fs_is_pinned_file(dst)) { | |
fb9b6534 CY |
2867 | ret = -EOPNOTSUPP; |
2868 | goto out_unlock; | |
2869 | } | |
2870 | ||
4dd6f977 JK |
2871 | ret = -EINVAL; |
2872 | if (pos_in + len > src->i_size || pos_in + len < pos_in) | |
2873 | goto out_unlock; | |
2874 | if (len == 0) | |
2875 | olen = len = src->i_size - pos_in; | |
2876 | if (pos_in + len == src->i_size) | |
2877 | len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in; | |
2878 | if (len == 0) { | |
2879 | ret = 0; | |
2880 | goto out_unlock; | |
2881 | } | |
2882 | ||
2883 | dst_osize = dst->i_size; | |
2884 | if (pos_out + olen > dst->i_size) | |
2885 | dst_max_i_size = pos_out + olen; | |
2886 | ||
2887 | /* verify the end result is block aligned */ | |
2888 | if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) || | |
2889 | !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) || | |
2890 | !IS_ALIGNED(pos_out, F2FS_BLKSIZE)) | |
2891 | goto out_unlock; | |
2892 | ||
2893 | ret = f2fs_convert_inline_inode(src); | |
2894 | if (ret) | |
2895 | goto out_unlock; | |
2896 | ||
2897 | ret = f2fs_convert_inline_inode(dst); | |
2898 | if (ret) | |
2899 | goto out_unlock; | |
2900 | ||
2901 | /* write out all dirty pages from offset */ | |
2902 | ret = filemap_write_and_wait_range(src->i_mapping, | |
2903 | pos_in, pos_in + len); | |
2904 | if (ret) | |
2905 | goto out_unlock; | |
2906 | ||
2907 | ret = filemap_write_and_wait_range(dst->i_mapping, | |
2908 | pos_out, pos_out + len); | |
2909 | if (ret) | |
2910 | goto out_unlock; | |
2911 | ||
2912 | f2fs_balance_fs(sbi, true); | |
6f8d4455 | 2913 | |
e4544b63 | 2914 | f2fs_down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]); |
6f8d4455 JK |
2915 | if (src != dst) { |
2916 | ret = -EBUSY; | |
e4544b63 | 2917 | if (!f2fs_down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE])) |
6f8d4455 JK |
2918 | goto out_src; |
2919 | } | |
2920 | ||
4dd6f977 | 2921 | f2fs_lock_op(sbi); |
61e4da11 FL |
2922 | ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS, |
2923 | pos_out >> F2FS_BLKSIZE_BITS, | |
2924 | len >> F2FS_BLKSIZE_BITS, false); | |
4dd6f977 JK |
2925 | |
2926 | if (!ret) { | |
2927 | if (dst_max_i_size) | |
2928 | f2fs_i_size_write(dst, dst_max_i_size); | |
2929 | else if (dst_osize != dst->i_size) | |
2930 | f2fs_i_size_write(dst, dst_osize); | |
2931 | } | |
2932 | f2fs_unlock_op(sbi); | |
6f8d4455 JK |
2933 | |
2934 | if (src != dst) | |
e4544b63 | 2935 | f2fs_up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]); |
6f8d4455 | 2936 | out_src: |
e4544b63 | 2937 | f2fs_up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]); |
396d0a28 YH |
2938 | if (ret) |
2939 | goto out_unlock; | |
2940 | ||
11cc6426 | 2941 | inode_set_mtime_to_ts(src, inode_set_ctime_current(src)); |
396d0a28 YH |
2942 | f2fs_mark_inode_dirty_sync(src, false); |
2943 | if (src != dst) { | |
11cc6426 | 2944 | inode_set_mtime_to_ts(dst, inode_set_ctime_current(dst)); |
396d0a28 YH |
2945 | f2fs_mark_inode_dirty_sync(dst, false); |
2946 | } | |
2947 | f2fs_update_time(sbi, REQ_TIME); | |
2948 | ||
6f8d4455 JK |
2949 | out_unlock: |
2950 | if (src != dst) | |
4dd6f977 | 2951 | inode_unlock(dst); |
20a3d61d | 2952 | out: |
4dd6f977 JK |
2953 | inode_unlock(src); |
2954 | return ret; | |
2955 | } | |
2956 | ||
34178b1b CY |
2957 | static int __f2fs_ioc_move_range(struct file *filp, |
2958 | struct f2fs_move_range *range) | |
4dd6f977 | 2959 | { |
4dd6f977 JK |
2960 | struct fd dst; |
2961 | int err; | |
2962 | ||
2963 | if (!(filp->f_mode & FMODE_READ) || | |
2964 | !(filp->f_mode & FMODE_WRITE)) | |
2965 | return -EBADF; | |
2966 | ||
34178b1b | 2967 | dst = fdget(range->dst_fd); |
4dd6f977 JK |
2968 | if (!dst.file) |
2969 | return -EBADF; | |
2970 | ||
2971 | if (!(dst.file->f_mode & FMODE_WRITE)) { | |
2972 | err = -EBADF; | |
2973 | goto err_out; | |
2974 | } | |
2975 | ||
2976 | err = mnt_want_write_file(filp); | |
2977 | if (err) | |
2978 | goto err_out; | |
2979 | ||
34178b1b CY |
2980 | err = f2fs_move_file_range(filp, range->pos_in, dst.file, |
2981 | range->pos_out, range->len); | |
4dd6f977 JK |
2982 | |
2983 | mnt_drop_write_file(filp); | |
4dd6f977 JK |
2984 | err_out: |
2985 | fdput(dst); | |
2986 | return err; | |
2987 | } | |
2988 | ||
34178b1b CY |
2989 | static int f2fs_ioc_move_range(struct file *filp, unsigned long arg) |
2990 | { | |
2991 | struct f2fs_move_range range; | |
2992 | ||
2993 | if (copy_from_user(&range, (struct f2fs_move_range __user *)arg, | |
2994 | sizeof(range))) | |
2995 | return -EFAULT; | |
2996 | return __f2fs_ioc_move_range(filp, &range); | |
2997 | } | |
2998 | ||
e066b83c JK |
2999 | static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg) |
3000 | { | |
3001 | struct inode *inode = file_inode(filp); | |
3002 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3003 | struct sit_info *sm = SIT_I(sbi); | |
3004 | unsigned int start_segno = 0, end_segno = 0; | |
3005 | unsigned int dev_start_segno = 0, dev_end_segno = 0; | |
3006 | struct f2fs_flush_device range; | |
d147ea4a JK |
3007 | struct f2fs_gc_control gc_control = { |
3008 | .init_gc_type = FG_GC, | |
3009 | .should_migrate_blocks = true, | |
c81d5bae JK |
3010 | .err_gc_skipped = true, |
3011 | .nr_free_secs = 0 }; | |
e066b83c JK |
3012 | int ret; |
3013 | ||
3014 | if (!capable(CAP_SYS_ADMIN)) | |
3015 | return -EPERM; | |
3016 | ||
3017 | if (f2fs_readonly(sbi->sb)) | |
3018 | return -EROFS; | |
3019 | ||
4354994f DR |
3020 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
3021 | return -EINVAL; | |
3022 | ||
e066b83c JK |
3023 | if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg, |
3024 | sizeof(range))) | |
3025 | return -EFAULT; | |
3026 | ||
0916878d | 3027 | if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num || |
2c70c5e3 | 3028 | __is_large_section(sbi)) { |
a60108f7 JK |
3029 | f2fs_warn(sbi, "Can't flush %u in %d for SEGS_PER_SEC %u != 1", |
3030 | range.dev_num, sbi->s_ndevs, SEGS_PER_SEC(sbi)); | |
e066b83c JK |
3031 | return -EINVAL; |
3032 | } | |
3033 | ||
3034 | ret = mnt_want_write_file(filp); | |
3035 | if (ret) | |
3036 | return ret; | |
3037 | ||
3038 | if (range.dev_num != 0) | |
3039 | dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk); | |
3040 | dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk); | |
3041 | ||
3042 | start_segno = sm->last_victim[FLUSH_DEVICE]; | |
3043 | if (start_segno < dev_start_segno || start_segno >= dev_end_segno) | |
3044 | start_segno = dev_start_segno; | |
3045 | end_segno = min(start_segno + range.segments, dev_end_segno); | |
3046 | ||
3047 | while (start_segno < end_segno) { | |
e4544b63 | 3048 | if (!f2fs_down_write_trylock(&sbi->gc_lock)) { |
e066b83c JK |
3049 | ret = -EBUSY; |
3050 | goto out; | |
3051 | } | |
3052 | sm->last_victim[GC_CB] = end_segno + 1; | |
3053 | sm->last_victim[GC_GREEDY] = end_segno + 1; | |
3054 | sm->last_victim[ALLOC_NEXT] = end_segno + 1; | |
d147ea4a JK |
3055 | |
3056 | gc_control.victim_segno = start_segno; | |
9bf1dcbd | 3057 | stat_inc_gc_call_count(sbi, FOREGROUND); |
d147ea4a | 3058 | ret = f2fs_gc(sbi, &gc_control); |
e066b83c JK |
3059 | if (ret == -EAGAIN) |
3060 | ret = 0; | |
3061 | else if (ret < 0) | |
3062 | break; | |
3063 | start_segno++; | |
3064 | } | |
3065 | out: | |
3066 | mnt_drop_write_file(filp); | |
3067 | return ret; | |
3068 | } | |
3069 | ||
e65ef207 JK |
3070 | static int f2fs_ioc_get_features(struct file *filp, unsigned long arg) |
3071 | { | |
3072 | struct inode *inode = file_inode(filp); | |
3073 | u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature); | |
3074 | ||
3075 | /* Must validate to set it with SQLite behavior in Android. */ | |
3076 | sb_feature |= F2FS_FEATURE_ATOMIC_WRITE; | |
3077 | ||
3078 | return put_user(sb_feature, (u32 __user *)arg); | |
3079 | } | |
e066b83c | 3080 | |
2c1d0305 | 3081 | #ifdef CONFIG_QUOTA |
78130819 CY |
3082 | int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid) |
3083 | { | |
3084 | struct dquot *transfer_to[MAXQUOTAS] = {}; | |
3085 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3086 | struct super_block *sb = sbi->sb; | |
8051692f | 3087 | int err; |
78130819 CY |
3088 | |
3089 | transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid)); | |
8051692f YL |
3090 | if (IS_ERR(transfer_to[PRJQUOTA])) |
3091 | return PTR_ERR(transfer_to[PRJQUOTA]); | |
3092 | ||
3093 | err = __dquot_transfer(inode, transfer_to); | |
3094 | if (err) | |
3095 | set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); | |
3096 | dqput(transfer_to[PRJQUOTA]); | |
78130819 CY |
3097 | return err; |
3098 | } | |
3099 | ||
9b1bb01c | 3100 | static int f2fs_ioc_setproject(struct inode *inode, __u32 projid) |
2c1d0305 | 3101 | { |
2c1d0305 CY |
3102 | struct f2fs_inode_info *fi = F2FS_I(inode); |
3103 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
d13732cc | 3104 | struct f2fs_inode *ri = NULL; |
2c1d0305 CY |
3105 | kprojid_t kprojid; |
3106 | int err; | |
3107 | ||
7beb01f7 | 3108 | if (!f2fs_sb_has_project_quota(sbi)) { |
2c1d0305 CY |
3109 | if (projid != F2FS_DEF_PROJID) |
3110 | return -EOPNOTSUPP; | |
3111 | else | |
3112 | return 0; | |
3113 | } | |
3114 | ||
3115 | if (!f2fs_has_extra_attr(inode)) | |
3116 | return -EOPNOTSUPP; | |
3117 | ||
3118 | kprojid = make_kprojid(&init_user_ns, (projid_t)projid); | |
3119 | ||
054cb289 | 3120 | if (projid_eq(kprojid, fi->i_projid)) |
2c1d0305 CY |
3121 | return 0; |
3122 | ||
2c1d0305 | 3123 | err = -EPERM; |
2c1d0305 CY |
3124 | /* Is it quota file? Do not allow user to mess with it */ |
3125 | if (IS_NOQUOTA(inode)) | |
c8e92757 | 3126 | return err; |
2c1d0305 | 3127 | |
d13732cc JY |
3128 | if (!F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) |
3129 | return -EOVERFLOW; | |
2c1d0305 | 3130 | |
10a26878 | 3131 | err = f2fs_dquot_initialize(inode); |
c22aecd7 | 3132 | if (err) |
c8e92757 | 3133 | return err; |
2c1d0305 | 3134 | |
78130819 CY |
3135 | f2fs_lock_op(sbi); |
3136 | err = f2fs_transfer_project_quota(inode, kprojid); | |
3137 | if (err) | |
3138 | goto out_unlock; | |
2c1d0305 | 3139 | |
054cb289 | 3140 | fi->i_projid = kprojid; |
c62ebd35 | 3141 | inode_set_ctime_current(inode); |
2c1d0305 | 3142 | f2fs_mark_inode_dirty_sync(inode, true); |
78130819 CY |
3143 | out_unlock: |
3144 | f2fs_unlock_op(sbi); | |
2c1d0305 CY |
3145 | return err; |
3146 | } | |
3147 | #else | |
78130819 CY |
3148 | int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid) |
3149 | { | |
3150 | return 0; | |
3151 | } | |
3152 | ||
9b1bb01c | 3153 | static int f2fs_ioc_setproject(struct inode *inode, __u32 projid) |
2c1d0305 CY |
3154 | { |
3155 | if (projid != F2FS_DEF_PROJID) | |
3156 | return -EOPNOTSUPP; | |
3157 | return 0; | |
3158 | } | |
3159 | #endif | |
3160 | ||
9b1bb01c | 3161 | int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa) |
2c1d0305 | 3162 | { |
9b1bb01c | 3163 | struct inode *inode = d_inode(dentry); |
2c1d0305 | 3164 | struct f2fs_inode_info *fi = F2FS_I(inode); |
9b1bb01c | 3165 | u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags); |
2c1d0305 | 3166 | |
9b1bb01c MS |
3167 | if (IS_ENCRYPTED(inode)) |
3168 | fsflags |= FS_ENCRYPT_FL; | |
3169 | if (IS_VERITY(inode)) | |
3170 | fsflags |= FS_VERITY_FL; | |
3171 | if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) | |
3172 | fsflags |= FS_INLINE_DATA_FL; | |
3173 | if (is_inode_flag_set(inode, FI_PIN_FILE)) | |
3174 | fsflags |= FS_NOCOW_FL; | |
3175 | ||
3176 | fileattr_fill_flags(fa, fsflags & F2FS_GETTABLE_FS_FL); | |
2c1d0305 | 3177 | |
7beb01f7 | 3178 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode))) |
6fc93c4e | 3179 | fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid); |
2c1d0305 | 3180 | |
c8e92757 WS |
3181 | return 0; |
3182 | } | |
3183 | ||
8782a9ae | 3184 | int f2fs_fileattr_set(struct mnt_idmap *idmap, |
9b1bb01c | 3185 | struct dentry *dentry, struct fileattr *fa) |
2c1d0305 | 3186 | { |
9b1bb01c MS |
3187 | struct inode *inode = d_inode(dentry); |
3188 | u32 fsflags = fa->flags, mask = F2FS_SETTABLE_FS_FL; | |
36098557 | 3189 | u32 iflags; |
2c1d0305 CY |
3190 | int err; |
3191 | ||
9b1bb01c MS |
3192 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
3193 | return -EIO; | |
3194 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode))) | |
3195 | return -ENOSPC; | |
3196 | if (fsflags & ~F2FS_GETTABLE_FS_FL) | |
2c1d0305 | 3197 | return -EOPNOTSUPP; |
9b1bb01c MS |
3198 | fsflags &= F2FS_SETTABLE_FS_FL; |
3199 | if (!fa->flags_valid) | |
3200 | mask &= FS_COMMON_FL; | |
2c1d0305 | 3201 | |
9b1bb01c | 3202 | iflags = f2fs_fsflags_to_iflags(fsflags); |
36098557 | 3203 | if (f2fs_mask_flags(inode->i_mode, iflags) != iflags) |
2c1d0305 CY |
3204 | return -EOPNOTSUPP; |
3205 | ||
9b1bb01c MS |
3206 | err = f2fs_setflags_common(inode, iflags, f2fs_fsflags_to_iflags(mask)); |
3207 | if (!err) | |
3208 | err = f2fs_ioc_setproject(inode, fa->fsx_projid); | |
2c1d0305 | 3209 | |
c8e92757 | 3210 | return err; |
2c1d0305 | 3211 | } |
e066b83c | 3212 | |
1ad71a27 JK |
3213 | int f2fs_pin_file_control(struct inode *inode, bool inc) |
3214 | { | |
3215 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3216 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3217 | ||
3218 | /* Use i_gc_failures for normal file as a risk signal. */ | |
3219 | if (inc) | |
968c4f72 | 3220 | f2fs_i_gc_failures_write(inode, fi->i_gc_failures + 1); |
1ad71a27 | 3221 | |
968c4f72 | 3222 | if (fi->i_gc_failures > sbi->gc_pin_file_threshold) { |
dcbb4c10 | 3223 | f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials", |
968c4f72 | 3224 | __func__, inode->i_ino, fi->i_gc_failures); |
1ad71a27 JK |
3225 | clear_inode_flag(inode, FI_PIN_FILE); |
3226 | return -EAGAIN; | |
3227 | } | |
3228 | return 0; | |
3229 | } | |
3230 | ||
3231 | static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg) | |
3232 | { | |
3233 | struct inode *inode = file_inode(filp); | |
9703d69d | 3234 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1ad71a27 JK |
3235 | __u32 pin; |
3236 | int ret = 0; | |
3237 | ||
1ad71a27 JK |
3238 | if (get_user(pin, (__u32 __user *)arg)) |
3239 | return -EFAULT; | |
3240 | ||
3241 | if (!S_ISREG(inode->i_mode)) | |
3242 | return -EINVAL; | |
3243 | ||
9703d69d | 3244 | if (f2fs_readonly(sbi->sb)) |
1ad71a27 JK |
3245 | return -EROFS; |
3246 | ||
3247 | ret = mnt_want_write_file(filp); | |
3248 | if (ret) | |
3249 | return ret; | |
3250 | ||
3251 | inode_lock(inode); | |
3252 | ||
3253 | if (!pin) { | |
3254 | clear_inode_flag(inode, FI_PIN_FILE); | |
30933364 | 3255 | f2fs_i_gc_failures_write(inode, 0); |
1ad71a27 | 3256 | goto done; |
9703d69d DJ |
3257 | } else if (f2fs_is_pinned_file(inode)) { |
3258 | goto done; | |
3259 | } | |
3260 | ||
3fdd89b4 | 3261 | if (F2FS_HAS_BLOCKS(inode)) { |
9703d69d DJ |
3262 | ret = -EFBIG; |
3263 | goto out; | |
1ad71a27 JK |
3264 | } |
3265 | ||
9703d69d DJ |
3266 | /* Let's allow file pinning on zoned device. */ |
3267 | if (!f2fs_sb_has_blkzoned(sbi) && | |
3268 | f2fs_should_update_outplace(inode, NULL)) { | |
19bdba52 JK |
3269 | ret = -EINVAL; |
3270 | goto out; | |
3271 | } | |
3272 | ||
1ad71a27 JK |
3273 | if (f2fs_pin_file_control(inode, false)) { |
3274 | ret = -EAGAIN; | |
3275 | goto out; | |
3276 | } | |
4c8ff709 | 3277 | |
1ad71a27 JK |
3278 | ret = f2fs_convert_inline_inode(inode); |
3279 | if (ret) | |
3280 | goto out; | |
3281 | ||
78134d03 | 3282 | if (!f2fs_disable_compressed_file(inode)) { |
4c8ff709 CY |
3283 | ret = -EOPNOTSUPP; |
3284 | goto out; | |
3285 | } | |
3286 | ||
1ad71a27 | 3287 | set_inode_flag(inode, FI_PIN_FILE); |
968c4f72 | 3288 | ret = F2FS_I(inode)->i_gc_failures; |
1ad71a27 | 3289 | done: |
9703d69d | 3290 | f2fs_update_time(sbi, REQ_TIME); |
1ad71a27 JK |
3291 | out: |
3292 | inode_unlock(inode); | |
3293 | mnt_drop_write_file(filp); | |
3294 | return ret; | |
3295 | } | |
3296 | ||
3297 | static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg) | |
3298 | { | |
3299 | struct inode *inode = file_inode(filp); | |
3300 | __u32 pin = 0; | |
3301 | ||
3302 | if (is_inode_flag_set(inode, FI_PIN_FILE)) | |
968c4f72 | 3303 | pin = F2FS_I(inode)->i_gc_failures; |
1ad71a27 JK |
3304 | return put_user(pin, (u32 __user *)arg); |
3305 | } | |
3306 | ||
c4020b2d CY |
3307 | int f2fs_precache_extents(struct inode *inode) |
3308 | { | |
3309 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3310 | struct f2fs_map_blocks map; | |
3311 | pgoff_t m_next_extent; | |
3312 | loff_t end; | |
3313 | int err; | |
3314 | ||
3315 | if (is_inode_flag_set(inode, FI_NO_EXTENT)) | |
3316 | return -EOPNOTSUPP; | |
3317 | ||
3318 | map.m_lblk = 0; | |
8b07c1fb | 3319 | map.m_pblk = 0; |
c4020b2d CY |
3320 | map.m_next_pgofs = NULL; |
3321 | map.m_next_extent = &m_next_extent; | |
3322 | map.m_seg_type = NO_CHECK_TYPE; | |
f4f0b677 | 3323 | map.m_may_create = false; |
6f560c0f | 3324 | end = F2FS_BLK_ALIGN(i_size_read(inode)); |
c4020b2d CY |
3325 | |
3326 | while (map.m_lblk < end) { | |
3327 | map.m_len = end - map.m_lblk; | |
3328 | ||
e4544b63 | 3329 | f2fs_down_write(&fi->i_gc_rwsem[WRITE]); |
cd8fc522 | 3330 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRECACHE); |
e4544b63 | 3331 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); |
4ed33e69 | 3332 | if (err || !map.m_len) |
c4020b2d CY |
3333 | return err; |
3334 | ||
3335 | map.m_lblk = m_next_extent; | |
3336 | } | |
3337 | ||
4f55dc2a | 3338 | return 0; |
c4020b2d CY |
3339 | } |
3340 | ||
ddf1eca4 | 3341 | static int f2fs_ioc_precache_extents(struct file *filp) |
c4020b2d CY |
3342 | { |
3343 | return f2fs_precache_extents(file_inode(filp)); | |
3344 | } | |
3345 | ||
04f0b2ea QS |
3346 | static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg) |
3347 | { | |
3348 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp)); | |
3349 | __u64 block_count; | |
04f0b2ea QS |
3350 | |
3351 | if (!capable(CAP_SYS_ADMIN)) | |
3352 | return -EPERM; | |
3353 | ||
3354 | if (f2fs_readonly(sbi->sb)) | |
3355 | return -EROFS; | |
3356 | ||
3357 | if (copy_from_user(&block_count, (void __user *)arg, | |
3358 | sizeof(block_count))) | |
3359 | return -EFAULT; | |
3360 | ||
d8189834 | 3361 | return f2fs_resize_fs(filp, block_count); |
04f0b2ea QS |
3362 | } |
3363 | ||
95ae251f EB |
3364 | static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg) |
3365 | { | |
3366 | struct inode *inode = file_inode(filp); | |
3367 | ||
3368 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); | |
3369 | ||
3370 | if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) { | |
3371 | f2fs_warn(F2FS_I_SB(inode), | |
833dcd35 | 3372 | "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem", |
95ae251f EB |
3373 | inode->i_ino); |
3374 | return -EOPNOTSUPP; | |
3375 | } | |
3376 | ||
3377 | return fsverity_ioctl_enable(filp, (const void __user *)arg); | |
3378 | } | |
3379 | ||
3380 | static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg) | |
3381 | { | |
3382 | if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp)))) | |
3383 | return -EOPNOTSUPP; | |
3384 | ||
3385 | return fsverity_ioctl_measure(filp, (void __user *)arg); | |
3386 | } | |
3387 | ||
e17fe657 EB |
3388 | static int f2fs_ioc_read_verity_metadata(struct file *filp, unsigned long arg) |
3389 | { | |
3390 | if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp)))) | |
3391 | return -EOPNOTSUPP; | |
3392 | ||
3393 | return fsverity_ioctl_read_metadata(filp, (const void __user *)arg); | |
3394 | } | |
3395 | ||
3357af8f | 3396 | static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg) |
4507847c CY |
3397 | { |
3398 | struct inode *inode = file_inode(filp); | |
3399 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3400 | char *vbuf; | |
3401 | int count; | |
3402 | int err = 0; | |
3403 | ||
3404 | vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL); | |
3405 | if (!vbuf) | |
3406 | return -ENOMEM; | |
3407 | ||
e4544b63 | 3408 | f2fs_down_read(&sbi->sb_lock); |
4507847c CY |
3409 | count = utf16s_to_utf8s(sbi->raw_super->volume_name, |
3410 | ARRAY_SIZE(sbi->raw_super->volume_name), | |
3411 | UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME); | |
e4544b63 | 3412 | f2fs_up_read(&sbi->sb_lock); |
4507847c CY |
3413 | |
3414 | if (copy_to_user((char __user *)arg, vbuf, | |
3415 | min(FSLABEL_MAX, count))) | |
3416 | err = -EFAULT; | |
3417 | ||
c8eb7024 | 3418 | kfree(vbuf); |
4507847c CY |
3419 | return err; |
3420 | } | |
3421 | ||
3357af8f | 3422 | static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg) |
4507847c CY |
3423 | { |
3424 | struct inode *inode = file_inode(filp); | |
3425 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3426 | char *vbuf; | |
3427 | int err = 0; | |
3428 | ||
3429 | if (!capable(CAP_SYS_ADMIN)) | |
3430 | return -EPERM; | |
3431 | ||
3432 | vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX); | |
3433 | if (IS_ERR(vbuf)) | |
3434 | return PTR_ERR(vbuf); | |
3435 | ||
3436 | err = mnt_want_write_file(filp); | |
3437 | if (err) | |
3438 | goto out; | |
3439 | ||
e4544b63 | 3440 | f2fs_down_write(&sbi->sb_lock); |
4507847c CY |
3441 | |
3442 | memset(sbi->raw_super->volume_name, 0, | |
3443 | sizeof(sbi->raw_super->volume_name)); | |
3444 | utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN, | |
3445 | sbi->raw_super->volume_name, | |
3446 | ARRAY_SIZE(sbi->raw_super->volume_name)); | |
3447 | ||
3448 | err = f2fs_commit_super(sbi, false); | |
3449 | ||
e4544b63 | 3450 | f2fs_up_write(&sbi->sb_lock); |
4507847c CY |
3451 | |
3452 | mnt_drop_write_file(filp); | |
3453 | out: | |
3454 | kfree(vbuf); | |
3455 | return err; | |
3456 | } | |
3457 | ||
ac1ee161 | 3458 | static int f2fs_get_compress_blocks(struct inode *inode, __u64 *blocks) |
439dfb10 | 3459 | { |
439dfb10 CY |
3460 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) |
3461 | return -EOPNOTSUPP; | |
3462 | ||
3463 | if (!f2fs_compressed_file(inode)) | |
3464 | return -EINVAL; | |
3465 | ||
ac1ee161 SY |
3466 | *blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks); |
3467 | ||
3468 | return 0; | |
3469 | } | |
3470 | ||
3471 | static int f2fs_ioc_get_compress_blocks(struct file *filp, unsigned long arg) | |
3472 | { | |
3473 | struct inode *inode = file_inode(filp); | |
3474 | __u64 blocks; | |
3475 | int ret; | |
3476 | ||
3477 | ret = f2fs_get_compress_blocks(inode, &blocks); | |
3478 | if (ret < 0) | |
3479 | return ret; | |
3480 | ||
439dfb10 CY |
3481 | return put_user(blocks, (u64 __user *)arg); |
3482 | } | |
3483 | ||
ef8d563f CY |
3484 | static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count) |
3485 | { | |
3486 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
3487 | unsigned int released_blocks = 0; | |
3488 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
3489 | block_t blkaddr; | |
3490 | int i; | |
3491 | ||
3492 | for (i = 0; i < count; i++) { | |
3493 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
3494 | dn->ofs_in_node + i); | |
3495 | ||
3496 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3497 | continue; | |
3498 | if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
31f85ccc | 3499 | DATA_GENERIC_ENHANCE))) |
ef8d563f CY |
3500 | return -EFSCORRUPTED; |
3501 | } | |
3502 | ||
3503 | while (count) { | |
3504 | int compr_blocks = 0; | |
3505 | ||
3506 | for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) { | |
3507 | blkaddr = f2fs_data_blkaddr(dn); | |
3508 | ||
3509 | if (i == 0) { | |
3510 | if (blkaddr == COMPRESS_ADDR) | |
3511 | continue; | |
3512 | dn->ofs_in_node += cluster_size; | |
3513 | goto next; | |
3514 | } | |
3515 | ||
3516 | if (__is_valid_data_blkaddr(blkaddr)) | |
3517 | compr_blocks++; | |
3518 | ||
3519 | if (blkaddr != NEW_ADDR) | |
3520 | continue; | |
3521 | ||
59d0d4c3 | 3522 | f2fs_set_data_blkaddr(dn, NULL_ADDR); |
ef8d563f CY |
3523 | } |
3524 | ||
3525 | f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false); | |
3526 | dec_valid_block_count(sbi, dn->inode, | |
3527 | cluster_size - compr_blocks); | |
3528 | ||
3529 | released_blocks += cluster_size - compr_blocks; | |
3530 | next: | |
3531 | count -= cluster_size; | |
3532 | } | |
3533 | ||
3534 | return released_blocks; | |
3535 | } | |
3536 | ||
3537 | static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg) | |
3538 | { | |
3539 | struct inode *inode = file_inode(filp); | |
3540 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3541 | pgoff_t page_idx = 0, last_idx; | |
3542 | unsigned int released_blocks = 0; | |
3543 | int ret; | |
3544 | int writecount; | |
3545 | ||
c3355ea9 | 3546 | if (!f2fs_sb_has_compression(sbi)) |
ef8d563f CY |
3547 | return -EOPNOTSUPP; |
3548 | ||
ef8d563f CY |
3549 | if (f2fs_readonly(sbi->sb)) |
3550 | return -EROFS; | |
3551 | ||
3552 | ret = mnt_want_write_file(filp); | |
3553 | if (ret) | |
3554 | return ret; | |
3555 | ||
c3355ea9 | 3556 | f2fs_balance_fs(sbi, true); |
ef8d563f CY |
3557 | |
3558 | inode_lock(inode); | |
3559 | ||
3560 | writecount = atomic_read(&inode->i_writecount); | |
8c8cf26a DJ |
3561 | if ((filp->f_mode & FMODE_WRITE && writecount != 1) || |
3562 | (!(filp->f_mode & FMODE_WRITE) && writecount)) { | |
ef8d563f CY |
3563 | ret = -EBUSY; |
3564 | goto out; | |
3565 | } | |
3566 | ||
7c5dffb3 CY |
3567 | if (!f2fs_compressed_file(inode) || |
3568 | is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { | |
ef8d563f CY |
3569 | ret = -EINVAL; |
3570 | goto out; | |
3571 | } | |
3572 | ||
3573 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); | |
3574 | if (ret) | |
3575 | goto out; | |
3576 | ||
87a91a15 SY |
3577 | if (!atomic_read(&F2FS_I(inode)->i_compr_blocks)) { |
3578 | ret = -EPERM; | |
3579 | goto out; | |
3580 | } | |
3581 | ||
c6140415 | 3582 | set_inode_flag(inode, FI_COMPRESS_RELEASED); |
c62ebd35 | 3583 | inode_set_ctime_current(inode); |
ef8d563f CY |
3584 | f2fs_mark_inode_dirty_sync(inode, true); |
3585 | ||
e4544b63 | 3586 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 3587 | filemap_invalidate_lock(inode->i_mapping); |
ef8d563f CY |
3588 | |
3589 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
3590 | ||
3591 | while (page_idx < last_idx) { | |
3592 | struct dnode_of_data dn; | |
3593 | pgoff_t end_offset, count; | |
3594 | ||
3595 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3596 | ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE); | |
3597 | if (ret) { | |
3598 | if (ret == -ENOENT) { | |
3599 | page_idx = f2fs_get_next_page_offset(&dn, | |
3600 | page_idx); | |
3601 | ret = 0; | |
3602 | continue; | |
3603 | } | |
3604 | break; | |
3605 | } | |
3606 | ||
3607 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3608 | count = min(end_offset - dn.ofs_in_node, last_idx - page_idx); | |
4fec3fc0 | 3609 | count = round_up(count, F2FS_I(inode)->i_cluster_size); |
ef8d563f CY |
3610 | |
3611 | ret = release_compress_blocks(&dn, count); | |
3612 | ||
3613 | f2fs_put_dnode(&dn); | |
3614 | ||
3615 | if (ret < 0) | |
3616 | break; | |
3617 | ||
3618 | page_idx += count; | |
3619 | released_blocks += ret; | |
3620 | } | |
3621 | ||
edc6d01b | 3622 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 3623 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
ef8d563f | 3624 | out: |
fa18d87c ZN |
3625 | if (released_blocks) |
3626 | f2fs_update_time(sbi, REQ_TIME); | |
ef8d563f CY |
3627 | inode_unlock(inode); |
3628 | ||
3629 | mnt_drop_write_file(filp); | |
3630 | ||
3631 | if (ret >= 0) { | |
3632 | ret = put_user(released_blocks, (u64 __user *)arg); | |
c2759eba DJ |
3633 | } else if (released_blocks && |
3634 | atomic_read(&F2FS_I(inode)->i_compr_blocks)) { | |
ef8d563f CY |
3635 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
3636 | f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx " | |
c2759eba | 3637 | "iblocks=%llu, released=%u, compr_blocks=%u, " |
ef8d563f CY |
3638 | "run fsck to fix.", |
3639 | __func__, inode->i_ino, inode->i_blocks, | |
3640 | released_blocks, | |
c2759eba | 3641 | atomic_read(&F2FS_I(inode)->i_compr_blocks)); |
ef8d563f CY |
3642 | } |
3643 | ||
3644 | return ret; | |
3645 | } | |
3646 | ||
2f6d721e XW |
3647 | static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count, |
3648 | unsigned int *reserved_blocks) | |
c75488fb CY |
3649 | { |
3650 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
c75488fb CY |
3651 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; |
3652 | block_t blkaddr; | |
3653 | int i; | |
3654 | ||
3655 | for (i = 0; i < count; i++) { | |
3656 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
3657 | dn->ofs_in_node + i); | |
3658 | ||
3659 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3660 | continue; | |
3661 | if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
31f85ccc | 3662 | DATA_GENERIC_ENHANCE))) |
c75488fb CY |
3663 | return -EFSCORRUPTED; |
3664 | } | |
3665 | ||
3666 | while (count) { | |
3667 | int compr_blocks = 0; | |
3668 | blkcnt_t reserved; | |
3669 | int ret; | |
3670 | ||
54607494 CY |
3671 | for (i = 0; i < cluster_size; i++) { |
3672 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
3673 | dn->ofs_in_node + i); | |
c75488fb CY |
3674 | |
3675 | if (i == 0) { | |
54607494 CY |
3676 | if (blkaddr != COMPRESS_ADDR) { |
3677 | dn->ofs_in_node += cluster_size; | |
3678 | goto next; | |
3679 | } | |
3680 | continue; | |
c75488fb CY |
3681 | } |
3682 | ||
eb8fbaa5 SY |
3683 | /* |
3684 | * compressed cluster was not released due to it | |
3685 | * fails in release_compress_blocks(), so NEW_ADDR | |
3686 | * is a possible case. | |
3687 | */ | |
3688 | if (blkaddr == NEW_ADDR || | |
3689 | __is_valid_data_blkaddr(blkaddr)) { | |
c75488fb CY |
3690 | compr_blocks++; |
3691 | continue; | |
3692 | } | |
c75488fb CY |
3693 | } |
3694 | ||
3695 | reserved = cluster_size - compr_blocks; | |
eb8fbaa5 SY |
3696 | |
3697 | /* for the case all blocks in cluster were reserved */ | |
3698 | if (reserved == 1) | |
3699 | goto next; | |
3700 | ||
54607494 CY |
3701 | ret = inc_valid_block_count(sbi, dn->inode, &reserved, false); |
3702 | if (unlikely(ret)) | |
c75488fb CY |
3703 | return ret; |
3704 | ||
54607494 CY |
3705 | for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) { |
3706 | if (f2fs_data_blkaddr(dn) == NULL_ADDR) | |
3707 | f2fs_set_data_blkaddr(dn, NEW_ADDR); | |
3708 | } | |
c75488fb CY |
3709 | |
3710 | f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true); | |
3711 | ||
2f6d721e | 3712 | *reserved_blocks += reserved; |
c75488fb CY |
3713 | next: |
3714 | count -= cluster_size; | |
3715 | } | |
3716 | ||
2f6d721e | 3717 | return 0; |
c75488fb CY |
3718 | } |
3719 | ||
3720 | static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg) | |
3721 | { | |
3722 | struct inode *inode = file_inode(filp); | |
3723 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3724 | pgoff_t page_idx = 0, last_idx; | |
3725 | unsigned int reserved_blocks = 0; | |
3726 | int ret; | |
3727 | ||
c3355ea9 | 3728 | if (!f2fs_sb_has_compression(sbi)) |
c75488fb CY |
3729 | return -EOPNOTSUPP; |
3730 | ||
c75488fb CY |
3731 | if (f2fs_readonly(sbi->sb)) |
3732 | return -EROFS; | |
3733 | ||
3734 | ret = mnt_want_write_file(filp); | |
3735 | if (ret) | |
3736 | return ret; | |
3737 | ||
c3355ea9 | 3738 | f2fs_balance_fs(sbi, true); |
c75488fb CY |
3739 | |
3740 | inode_lock(inode); | |
3741 | ||
7c5dffb3 CY |
3742 | if (!f2fs_compressed_file(inode) || |
3743 | !is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { | |
c75488fb CY |
3744 | ret = -EINVAL; |
3745 | goto unlock_inode; | |
3746 | } | |
3747 | ||
b7d797d2 XW |
3748 | if (atomic_read(&F2FS_I(inode)->i_compr_blocks)) |
3749 | goto unlock_inode; | |
3750 | ||
e4544b63 | 3751 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 3752 | filemap_invalidate_lock(inode->i_mapping); |
c75488fb CY |
3753 | |
3754 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
3755 | ||
3756 | while (page_idx < last_idx) { | |
3757 | struct dnode_of_data dn; | |
3758 | pgoff_t end_offset, count; | |
3759 | ||
3760 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3761 | ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE); | |
3762 | if (ret) { | |
3763 | if (ret == -ENOENT) { | |
3764 | page_idx = f2fs_get_next_page_offset(&dn, | |
3765 | page_idx); | |
3766 | ret = 0; | |
3767 | continue; | |
3768 | } | |
3769 | break; | |
3770 | } | |
3771 | ||
3772 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3773 | count = min(end_offset - dn.ofs_in_node, last_idx - page_idx); | |
4fec3fc0 | 3774 | count = round_up(count, F2FS_I(inode)->i_cluster_size); |
c75488fb | 3775 | |
2f6d721e | 3776 | ret = reserve_compress_blocks(&dn, count, &reserved_blocks); |
c75488fb CY |
3777 | |
3778 | f2fs_put_dnode(&dn); | |
3779 | ||
3780 | if (ret < 0) | |
3781 | break; | |
3782 | ||
3783 | page_idx += count; | |
c75488fb CY |
3784 | } |
3785 | ||
edc6d01b | 3786 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 3787 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
c75488fb | 3788 | |
2f6d721e | 3789 | if (!ret) { |
c6140415 | 3790 | clear_inode_flag(inode, FI_COMPRESS_RELEASED); |
c62ebd35 | 3791 | inode_set_ctime_current(inode); |
c75488fb CY |
3792 | f2fs_mark_inode_dirty_sync(inode, true); |
3793 | } | |
3794 | unlock_inode: | |
fa18d87c ZN |
3795 | if (reserved_blocks) |
3796 | f2fs_update_time(sbi, REQ_TIME); | |
c75488fb | 3797 | inode_unlock(inode); |
c75488fb CY |
3798 | mnt_drop_write_file(filp); |
3799 | ||
2f6d721e | 3800 | if (!ret) { |
c75488fb | 3801 | ret = put_user(reserved_blocks, (u64 __user *)arg); |
c2759eba DJ |
3802 | } else if (reserved_blocks && |
3803 | atomic_read(&F2FS_I(inode)->i_compr_blocks)) { | |
c75488fb CY |
3804 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
3805 | f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx " | |
c2759eba | 3806 | "iblocks=%llu, reserved=%u, compr_blocks=%u, " |
c75488fb CY |
3807 | "run fsck to fix.", |
3808 | __func__, inode->i_ino, inode->i_blocks, | |
3809 | reserved_blocks, | |
c2759eba | 3810 | atomic_read(&F2FS_I(inode)->i_compr_blocks)); |
c75488fb CY |
3811 | } |
3812 | ||
3813 | return ret; | |
3814 | } | |
3815 | ||
9af84648 DJ |
3816 | static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode, |
3817 | pgoff_t off, block_t block, block_t len, u32 flags) | |
3818 | { | |
9af84648 DJ |
3819 | sector_t sector = SECTOR_FROM_BLOCK(block); |
3820 | sector_t nr_sects = SECTOR_FROM_BLOCK(len); | |
3821 | int ret = 0; | |
3822 | ||
44abff2c CH |
3823 | if (flags & F2FS_TRIM_FILE_DISCARD) { |
3824 | if (bdev_max_secure_erase_sectors(bdev)) | |
3825 | ret = blkdev_issue_secure_erase(bdev, sector, nr_sects, | |
3826 | GFP_NOFS); | |
3827 | else | |
3828 | ret = blkdev_issue_discard(bdev, sector, nr_sects, | |
3829 | GFP_NOFS); | |
3830 | } | |
9af84648 DJ |
3831 | |
3832 | if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) { | |
3833 | if (IS_ENCRYPTED(inode)) | |
3834 | ret = fscrypt_zeroout_range(inode, off, block, len); | |
3835 | else | |
3836 | ret = blkdev_issue_zeroout(bdev, sector, nr_sects, | |
3837 | GFP_NOFS, 0); | |
3838 | } | |
3839 | ||
3840 | return ret; | |
3841 | } | |
3842 | ||
3843 | static int f2fs_sec_trim_file(struct file *filp, unsigned long arg) | |
3844 | { | |
3845 | struct inode *inode = file_inode(filp); | |
3846 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3847 | struct address_space *mapping = inode->i_mapping; | |
3848 | struct block_device *prev_bdev = NULL; | |
3849 | struct f2fs_sectrim_range range; | |
3850 | pgoff_t index, pg_end, prev_index = 0; | |
3851 | block_t prev_block = 0, len = 0; | |
3852 | loff_t end_addr; | |
3853 | bool to_end = false; | |
3854 | int ret = 0; | |
3855 | ||
3856 | if (!(filp->f_mode & FMODE_WRITE)) | |
3857 | return -EBADF; | |
3858 | ||
3859 | if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg, | |
3860 | sizeof(range))) | |
3861 | return -EFAULT; | |
3862 | ||
3863 | if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) || | |
3864 | !S_ISREG(inode->i_mode)) | |
3865 | return -EINVAL; | |
3866 | ||
3867 | if (((range.flags & F2FS_TRIM_FILE_DISCARD) && | |
3868 | !f2fs_hw_support_discard(sbi)) || | |
3869 | ((range.flags & F2FS_TRIM_FILE_ZEROOUT) && | |
3870 | IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi))) | |
3871 | return -EOPNOTSUPP; | |
3872 | ||
3873 | file_start_write(filp); | |
3874 | inode_lock(inode); | |
3875 | ||
3876 | if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) || | |
3877 | range.start >= inode->i_size) { | |
3878 | ret = -EINVAL; | |
3879 | goto err; | |
3880 | } | |
3881 | ||
3882 | if (range.len == 0) | |
3883 | goto err; | |
3884 | ||
3885 | if (inode->i_size - range.start > range.len) { | |
3886 | end_addr = range.start + range.len; | |
3887 | } else { | |
3888 | end_addr = range.len == (u64)-1 ? | |
3889 | sbi->sb->s_maxbytes : inode->i_size; | |
3890 | to_end = true; | |
3891 | } | |
3892 | ||
3893 | if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) || | |
3894 | (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) { | |
3895 | ret = -EINVAL; | |
3896 | goto err; | |
3897 | } | |
3898 | ||
3899 | index = F2FS_BYTES_TO_BLK(range.start); | |
3900 | pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE); | |
3901 | ||
3902 | ret = f2fs_convert_inline_inode(inode); | |
3903 | if (ret) | |
3904 | goto err; | |
3905 | ||
e4544b63 | 3906 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 3907 | filemap_invalidate_lock(mapping); |
9af84648 DJ |
3908 | |
3909 | ret = filemap_write_and_wait_range(mapping, range.start, | |
3910 | to_end ? LLONG_MAX : end_addr - 1); | |
3911 | if (ret) | |
3912 | goto out; | |
3913 | ||
3914 | truncate_inode_pages_range(mapping, range.start, | |
3915 | to_end ? -1 : end_addr - 1); | |
3916 | ||
3917 | while (index < pg_end) { | |
3918 | struct dnode_of_data dn; | |
3919 | pgoff_t end_offset, count; | |
3920 | int i; | |
3921 | ||
3922 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3923 | ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE); | |
3924 | if (ret) { | |
3925 | if (ret == -ENOENT) { | |
3926 | index = f2fs_get_next_page_offset(&dn, index); | |
3927 | continue; | |
3928 | } | |
3929 | goto out; | |
3930 | } | |
3931 | ||
3932 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3933 | count = min(end_offset - dn.ofs_in_node, pg_end - index); | |
3934 | for (i = 0; i < count; i++, index++, dn.ofs_in_node++) { | |
3935 | struct block_device *cur_bdev; | |
3936 | block_t blkaddr = f2fs_data_blkaddr(&dn); | |
3937 | ||
3938 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3939 | continue; | |
3940 | ||
3941 | if (!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
3942 | DATA_GENERIC_ENHANCE)) { | |
3943 | ret = -EFSCORRUPTED; | |
3944 | f2fs_put_dnode(&dn); | |
3945 | goto out; | |
3946 | } | |
3947 | ||
3948 | cur_bdev = f2fs_target_device(sbi, blkaddr, NULL); | |
3949 | if (f2fs_is_multi_device(sbi)) { | |
3950 | int di = f2fs_target_device_index(sbi, blkaddr); | |
3951 | ||
3952 | blkaddr -= FDEV(di).start_blk; | |
3953 | } | |
3954 | ||
3955 | if (len) { | |
3956 | if (prev_bdev == cur_bdev && | |
3957 | index == prev_index + len && | |
3958 | blkaddr == prev_block + len) { | |
3959 | len++; | |
3960 | } else { | |
3961 | ret = f2fs_secure_erase(prev_bdev, | |
3962 | inode, prev_index, prev_block, | |
3963 | len, range.flags); | |
3964 | if (ret) { | |
3965 | f2fs_put_dnode(&dn); | |
3966 | goto out; | |
3967 | } | |
3968 | ||
3969 | len = 0; | |
3970 | } | |
3971 | } | |
3972 | ||
3973 | if (!len) { | |
3974 | prev_bdev = cur_bdev; | |
3975 | prev_index = index; | |
3976 | prev_block = blkaddr; | |
3977 | len = 1; | |
3978 | } | |
3979 | } | |
3980 | ||
3981 | f2fs_put_dnode(&dn); | |
3982 | ||
3983 | if (fatal_signal_pending(current)) { | |
3984 | ret = -EINTR; | |
3985 | goto out; | |
3986 | } | |
3987 | cond_resched(); | |
3988 | } | |
3989 | ||
3990 | if (len) | |
3991 | ret = f2fs_secure_erase(prev_bdev, inode, prev_index, | |
3992 | prev_block, len, range.flags); | |
fa18d87c | 3993 | f2fs_update_time(sbi, REQ_TIME); |
9af84648 | 3994 | out: |
edc6d01b | 3995 | filemap_invalidate_unlock(mapping); |
e4544b63 | 3996 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
9af84648 DJ |
3997 | err: |
3998 | inode_unlock(inode); | |
3999 | file_end_write(filp); | |
4000 | ||
4001 | return ret; | |
4002 | } | |
4003 | ||
9e2a5f8c | 4004 | static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg) |
52656e6c | 4005 | { |
9e2a5f8c DJ |
4006 | struct inode *inode = file_inode(filp); |
4007 | struct f2fs_comp_option option; | |
4008 | ||
4009 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
4010 | return -EOPNOTSUPP; | |
4011 | ||
4012 | inode_lock_shared(inode); | |
4013 | ||
4014 | if (!f2fs_compressed_file(inode)) { | |
4015 | inode_unlock_shared(inode); | |
4016 | return -ENODATA; | |
4017 | } | |
4018 | ||
4019 | option.algorithm = F2FS_I(inode)->i_compress_algorithm; | |
4020 | option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size; | |
4021 | ||
4022 | inode_unlock_shared(inode); | |
4023 | ||
4024 | if (copy_to_user((struct f2fs_comp_option __user *)arg, &option, | |
4025 | sizeof(option))) | |
4026 | return -EFAULT; | |
4027 | ||
4028 | return 0; | |
4029 | } | |
4030 | ||
e1e8debe DJ |
4031 | static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg) |
4032 | { | |
4033 | struct inode *inode = file_inode(filp); | |
4034 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4035 | struct f2fs_comp_option option; | |
4036 | int ret = 0; | |
1f227a3e | 4037 | |
e1e8debe DJ |
4038 | if (!f2fs_sb_has_compression(sbi)) |
4039 | return -EOPNOTSUPP; | |
4040 | ||
4041 | if (!(filp->f_mode & FMODE_WRITE)) | |
4042 | return -EBADF; | |
4043 | ||
4044 | if (copy_from_user(&option, (struct f2fs_comp_option __user *)arg, | |
4045 | sizeof(option))) | |
4046 | return -EFAULT; | |
4047 | ||
ea59b12a CY |
4048 | if (option.log_cluster_size < MIN_COMPRESS_LOG_SIZE || |
4049 | option.log_cluster_size > MAX_COMPRESS_LOG_SIZE || | |
4050 | option.algorithm >= COMPRESS_MAX) | |
e1e8debe DJ |
4051 | return -EINVAL; |
4052 | ||
4053 | file_start_write(filp); | |
4054 | inode_lock(inode); | |
4055 | ||
b5ab3276 | 4056 | f2fs_down_write(&F2FS_I(inode)->i_sem); |
ea59b12a CY |
4057 | if (!f2fs_compressed_file(inode)) { |
4058 | ret = -EINVAL; | |
4059 | goto out; | |
4060 | } | |
4061 | ||
e1e8debe DJ |
4062 | if (f2fs_is_mmap_file(inode) || get_dirty_pages(inode)) { |
4063 | ret = -EBUSY; | |
4064 | goto out; | |
4065 | } | |
4066 | ||
e6261beb | 4067 | if (F2FS_HAS_BLOCKS(inode)) { |
e1e8debe DJ |
4068 | ret = -EFBIG; |
4069 | goto out; | |
4070 | } | |
4071 | ||
4072 | F2FS_I(inode)->i_compress_algorithm = option.algorithm; | |
4073 | F2FS_I(inode)->i_log_cluster_size = option.log_cluster_size; | |
447286eb | 4074 | F2FS_I(inode)->i_cluster_size = BIT(option.log_cluster_size); |
f5f3bd90 JK |
4075 | /* Set default level */ |
4076 | if (F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) | |
4077 | F2FS_I(inode)->i_compress_level = F2FS_ZSTD_DEFAULT_CLEVEL; | |
4078 | else | |
4079 | F2FS_I(inode)->i_compress_level = 0; | |
4080 | /* Adjust mount option level */ | |
4081 | if (option.algorithm == F2FS_OPTION(sbi).compress_algorithm && | |
4082 | F2FS_OPTION(sbi).compress_level) | |
4083 | F2FS_I(inode)->i_compress_level = F2FS_OPTION(sbi).compress_level; | |
e1e8debe DJ |
4084 | f2fs_mark_inode_dirty_sync(inode, true); |
4085 | ||
4086 | if (!f2fs_is_compress_backend_ready(inode)) | |
4087 | f2fs_warn(sbi, "compression algorithm is successfully set, " | |
4088 | "but current kernel doesn't support this algorithm."); | |
4089 | out: | |
b5ab3276 | 4090 | f2fs_up_write(&F2FS_I(inode)->i_sem); |
e1e8debe DJ |
4091 | inode_unlock(inode); |
4092 | file_end_write(filp); | |
4093 | ||
4094 | return ret; | |
4095 | } | |
4096 | ||
5fdb322f DJ |
4097 | static int redirty_blocks(struct inode *inode, pgoff_t page_idx, int len) |
4098 | { | |
fcd9ae4f | 4099 | DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, page_idx); |
5fdb322f DJ |
4100 | struct address_space *mapping = inode->i_mapping; |
4101 | struct page *page; | |
4102 | pgoff_t redirty_idx = page_idx; | |
4103 | int i, page_len = 0, ret = 0; | |
4104 | ||
4105 | page_cache_ra_unbounded(&ractl, len, 0); | |
4106 | ||
4107 | for (i = 0; i < len; i++, page_idx++) { | |
4108 | page = read_cache_page(mapping, page_idx, NULL, NULL); | |
4109 | if (IS_ERR(page)) { | |
4110 | ret = PTR_ERR(page); | |
4111 | break; | |
4112 | } | |
4113 | page_len++; | |
4114 | } | |
4115 | ||
4116 | for (i = 0; i < page_len; i++, redirty_idx++) { | |
4117 | page = find_lock_page(mapping, redirty_idx); | |
a4a0e16d JQ |
4118 | |
4119 | /* It will never fail, when page has pinned above */ | |
4120 | f2fs_bug_on(F2FS_I_SB(inode), !page); | |
4121 | ||
5fdb322f | 4122 | set_page_dirty(page); |
4961acdd | 4123 | set_page_private_gcing(page); |
5fdb322f DJ |
4124 | f2fs_put_page(page, 1); |
4125 | f2fs_put_page(page, 0); | |
4126 | } | |
4127 | ||
4128 | return ret; | |
4129 | } | |
4130 | ||
ddf1eca4 | 4131 | static int f2fs_ioc_decompress_file(struct file *filp) |
5fdb322f DJ |
4132 | { |
4133 | struct inode *inode = file_inode(filp); | |
4134 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4135 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
4136 | pgoff_t page_idx = 0, last_idx; | |
054cb289 | 4137 | int cluster_size = fi->i_cluster_size; |
5fdb322f DJ |
4138 | int count, ret; |
4139 | ||
4140 | if (!f2fs_sb_has_compression(sbi) || | |
4141 | F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER) | |
4142 | return -EOPNOTSUPP; | |
4143 | ||
4144 | if (!(filp->f_mode & FMODE_WRITE)) | |
4145 | return -EBADF; | |
4146 | ||
c3355ea9 | 4147 | f2fs_balance_fs(sbi, true); |
5fdb322f DJ |
4148 | |
4149 | file_start_write(filp); | |
4150 | inode_lock(inode); | |
4151 | ||
4152 | if (!f2fs_is_compress_backend_ready(inode)) { | |
4153 | ret = -EOPNOTSUPP; | |
4154 | goto out; | |
4155 | } | |
4156 | ||
bd9ae4ae CY |
4157 | if (!f2fs_compressed_file(inode) || |
4158 | is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { | |
90be48bd JK |
4159 | ret = -EINVAL; |
4160 | goto out; | |
4161 | } | |
4162 | ||
5fdb322f DJ |
4163 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); |
4164 | if (ret) | |
4165 | goto out; | |
4166 | ||
4167 | if (!atomic_read(&fi->i_compr_blocks)) | |
4168 | goto out; | |
4169 | ||
4170 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
4171 | ||
4172 | count = last_idx - page_idx; | |
025b3602 CY |
4173 | while (count && count >= cluster_size) { |
4174 | ret = redirty_blocks(inode, page_idx, cluster_size); | |
5fdb322f DJ |
4175 | if (ret < 0) |
4176 | break; | |
4177 | ||
a60108f7 | 4178 | if (get_dirty_pages(inode) >= BLKS_PER_SEG(sbi)) { |
b822dc91 YL |
4179 | ret = filemap_fdatawrite(inode->i_mapping); |
4180 | if (ret < 0) | |
4181 | break; | |
4182 | } | |
5fdb322f | 4183 | |
025b3602 CY |
4184 | count -= cluster_size; |
4185 | page_idx += cluster_size; | |
3a2c0e55 CY |
4186 | |
4187 | cond_resched(); | |
4188 | if (fatal_signal_pending(current)) { | |
4189 | ret = -EINTR; | |
4190 | break; | |
4191 | } | |
5fdb322f DJ |
4192 | } |
4193 | ||
4194 | if (!ret) | |
4195 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, | |
4196 | LLONG_MAX); | |
4197 | ||
4198 | if (ret) | |
833dcd35 JP |
4199 | f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.", |
4200 | __func__, ret); | |
fa18d87c | 4201 | f2fs_update_time(sbi, REQ_TIME); |
5fdb322f DJ |
4202 | out: |
4203 | inode_unlock(inode); | |
4204 | file_end_write(filp); | |
4205 | ||
4206 | return ret; | |
4207 | } | |
4208 | ||
ddf1eca4 | 4209 | static int f2fs_ioc_compress_file(struct file *filp) |
5fdb322f DJ |
4210 | { |
4211 | struct inode *inode = file_inode(filp); | |
4212 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4213 | pgoff_t page_idx = 0, last_idx; | |
5fdb322f DJ |
4214 | int cluster_size = F2FS_I(inode)->i_cluster_size; |
4215 | int count, ret; | |
4216 | ||
4217 | if (!f2fs_sb_has_compression(sbi) || | |
4218 | F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER) | |
4219 | return -EOPNOTSUPP; | |
4220 | ||
4221 | if (!(filp->f_mode & FMODE_WRITE)) | |
4222 | return -EBADF; | |
4223 | ||
c3355ea9 | 4224 | f2fs_balance_fs(sbi, true); |
5fdb322f DJ |
4225 | |
4226 | file_start_write(filp); | |
4227 | inode_lock(inode); | |
4228 | ||
4229 | if (!f2fs_is_compress_backend_ready(inode)) { | |
4230 | ret = -EOPNOTSUPP; | |
4231 | goto out; | |
4232 | } | |
4233 | ||
bd9ae4ae CY |
4234 | if (!f2fs_compressed_file(inode) || |
4235 | is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { | |
90be48bd JK |
4236 | ret = -EINVAL; |
4237 | goto out; | |
4238 | } | |
4239 | ||
5fdb322f DJ |
4240 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); |
4241 | if (ret) | |
4242 | goto out; | |
4243 | ||
4244 | set_inode_flag(inode, FI_ENABLE_COMPRESS); | |
4245 | ||
4246 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
4247 | ||
4248 | count = last_idx - page_idx; | |
025b3602 CY |
4249 | while (count && count >= cluster_size) { |
4250 | ret = redirty_blocks(inode, page_idx, cluster_size); | |
5fdb322f DJ |
4251 | if (ret < 0) |
4252 | break; | |
4253 | ||
a60108f7 | 4254 | if (get_dirty_pages(inode) >= BLKS_PER_SEG(sbi)) { |
b822dc91 YL |
4255 | ret = filemap_fdatawrite(inode->i_mapping); |
4256 | if (ret < 0) | |
4257 | break; | |
4258 | } | |
5fdb322f | 4259 | |
025b3602 CY |
4260 | count -= cluster_size; |
4261 | page_idx += cluster_size; | |
3a2c0e55 CY |
4262 | |
4263 | cond_resched(); | |
4264 | if (fatal_signal_pending(current)) { | |
4265 | ret = -EINTR; | |
4266 | break; | |
4267 | } | |
5fdb322f DJ |
4268 | } |
4269 | ||
4270 | if (!ret) | |
4271 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, | |
4272 | LLONG_MAX); | |
4273 | ||
4274 | clear_inode_flag(inode, FI_ENABLE_COMPRESS); | |
4275 | ||
4276 | if (ret) | |
833dcd35 JP |
4277 | f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.", |
4278 | __func__, ret); | |
fa18d87c | 4279 | f2fs_update_time(sbi, REQ_TIME); |
5fdb322f DJ |
4280 | out: |
4281 | inode_unlock(inode); | |
4282 | file_end_write(filp); | |
4283 | ||
4284 | return ret; | |
4285 | } | |
4286 | ||
34178b1b | 4287 | static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
52656e6c JK |
4288 | { |
4289 | switch (cmd) { | |
3357af8f | 4290 | case FS_IOC_GETVERSION: |
d49f3e89 | 4291 | return f2fs_ioc_getversion(filp, arg); |
88b88a66 | 4292 | case F2FS_IOC_START_ATOMIC_WRITE: |
41e8f85a DJ |
4293 | return f2fs_ioc_start_atomic_write(filp, false); |
4294 | case F2FS_IOC_START_ATOMIC_REPLACE: | |
4295 | return f2fs_ioc_start_atomic_write(filp, true); | |
88b88a66 JK |
4296 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: |
4297 | return f2fs_ioc_commit_atomic_write(filp); | |
23339e57 DJ |
4298 | case F2FS_IOC_ABORT_ATOMIC_WRITE: |
4299 | return f2fs_ioc_abort_atomic_write(filp); | |
02a1335f | 4300 | case F2FS_IOC_START_VOLATILE_WRITE: |
1e84371f | 4301 | case F2FS_IOC_RELEASE_VOLATILE_WRITE: |
7bc155fe | 4302 | return -EOPNOTSUPP; |
1abff93d JK |
4303 | case F2FS_IOC_SHUTDOWN: |
4304 | return f2fs_ioc_shutdown(filp, arg); | |
52656e6c JK |
4305 | case FITRIM: |
4306 | return f2fs_ioc_fitrim(filp, arg); | |
3357af8f | 4307 | case FS_IOC_SET_ENCRYPTION_POLICY: |
f424f664 | 4308 | return f2fs_ioc_set_encryption_policy(filp, arg); |
3357af8f | 4309 | case FS_IOC_GET_ENCRYPTION_POLICY: |
f424f664 | 4310 | return f2fs_ioc_get_encryption_policy(filp, arg); |
3357af8f | 4311 | case FS_IOC_GET_ENCRYPTION_PWSALT: |
f424f664 | 4312 | return f2fs_ioc_get_encryption_pwsalt(filp, arg); |
8ce589c7 EB |
4313 | case FS_IOC_GET_ENCRYPTION_POLICY_EX: |
4314 | return f2fs_ioc_get_encryption_policy_ex(filp, arg); | |
4315 | case FS_IOC_ADD_ENCRYPTION_KEY: | |
4316 | return f2fs_ioc_add_encryption_key(filp, arg); | |
4317 | case FS_IOC_REMOVE_ENCRYPTION_KEY: | |
4318 | return f2fs_ioc_remove_encryption_key(filp, arg); | |
4319 | case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: | |
4320 | return f2fs_ioc_remove_encryption_key_all_users(filp, arg); | |
4321 | case FS_IOC_GET_ENCRYPTION_KEY_STATUS: | |
4322 | return f2fs_ioc_get_encryption_key_status(filp, arg); | |
ee446e1a EB |
4323 | case FS_IOC_GET_ENCRYPTION_NONCE: |
4324 | return f2fs_ioc_get_encryption_nonce(filp, arg); | |
c1c1b583 CY |
4325 | case F2FS_IOC_GARBAGE_COLLECT: |
4326 | return f2fs_ioc_gc(filp, arg); | |
34dc77ad JK |
4327 | case F2FS_IOC_GARBAGE_COLLECT_RANGE: |
4328 | return f2fs_ioc_gc_range(filp, arg); | |
456b88e4 | 4329 | case F2FS_IOC_WRITE_CHECKPOINT: |
ddf1eca4 | 4330 | return f2fs_ioc_write_checkpoint(filp); |
d323d005 CY |
4331 | case F2FS_IOC_DEFRAGMENT: |
4332 | return f2fs_ioc_defragment(filp, arg); | |
4dd6f977 JK |
4333 | case F2FS_IOC_MOVE_RANGE: |
4334 | return f2fs_ioc_move_range(filp, arg); | |
e066b83c JK |
4335 | case F2FS_IOC_FLUSH_DEVICE: |
4336 | return f2fs_ioc_flush_device(filp, arg); | |
e65ef207 JK |
4337 | case F2FS_IOC_GET_FEATURES: |
4338 | return f2fs_ioc_get_features(filp, arg); | |
1ad71a27 JK |
4339 | case F2FS_IOC_GET_PIN_FILE: |
4340 | return f2fs_ioc_get_pin_file(filp, arg); | |
4341 | case F2FS_IOC_SET_PIN_FILE: | |
4342 | return f2fs_ioc_set_pin_file(filp, arg); | |
c4020b2d | 4343 | case F2FS_IOC_PRECACHE_EXTENTS: |
ddf1eca4 | 4344 | return f2fs_ioc_precache_extents(filp); |
04f0b2ea QS |
4345 | case F2FS_IOC_RESIZE_FS: |
4346 | return f2fs_ioc_resize_fs(filp, arg); | |
95ae251f EB |
4347 | case FS_IOC_ENABLE_VERITY: |
4348 | return f2fs_ioc_enable_verity(filp, arg); | |
4349 | case FS_IOC_MEASURE_VERITY: | |
4350 | return f2fs_ioc_measure_verity(filp, arg); | |
e17fe657 EB |
4351 | case FS_IOC_READ_VERITY_METADATA: |
4352 | return f2fs_ioc_read_verity_metadata(filp, arg); | |
3357af8f EB |
4353 | case FS_IOC_GETFSLABEL: |
4354 | return f2fs_ioc_getfslabel(filp, arg); | |
4355 | case FS_IOC_SETFSLABEL: | |
4356 | return f2fs_ioc_setfslabel(filp, arg); | |
439dfb10 | 4357 | case F2FS_IOC_GET_COMPRESS_BLOCKS: |
ac1ee161 | 4358 | return f2fs_ioc_get_compress_blocks(filp, arg); |
ef8d563f CY |
4359 | case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: |
4360 | return f2fs_release_compress_blocks(filp, arg); | |
c75488fb CY |
4361 | case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: |
4362 | return f2fs_reserve_compress_blocks(filp, arg); | |
9af84648 DJ |
4363 | case F2FS_IOC_SEC_TRIM_FILE: |
4364 | return f2fs_sec_trim_file(filp, arg); | |
9e2a5f8c DJ |
4365 | case F2FS_IOC_GET_COMPRESS_OPTION: |
4366 | return f2fs_ioc_get_compress_option(filp, arg); | |
e1e8debe DJ |
4367 | case F2FS_IOC_SET_COMPRESS_OPTION: |
4368 | return f2fs_ioc_set_compress_option(filp, arg); | |
5fdb322f | 4369 | case F2FS_IOC_DECOMPRESS_FILE: |
ddf1eca4 | 4370 | return f2fs_ioc_decompress_file(filp); |
5fdb322f | 4371 | case F2FS_IOC_COMPRESS_FILE: |
ddf1eca4 | 4372 | return f2fs_ioc_compress_file(filp); |
fbfa2cc5 JK |
4373 | default: |
4374 | return -ENOTTY; | |
4375 | } | |
4376 | } | |
4377 | ||
34178b1b CY |
4378 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
4379 | { | |
4380 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp))))) | |
4381 | return -EIO; | |
4382 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp)))) | |
4383 | return -ENOSPC; | |
4384 | ||
4385 | return __f2fs_ioctl(filp, cmd, arg); | |
4386 | } | |
4387 | ||
a1e09b03 EB |
4388 | /* |
4389 | * Return %true if the given read or write request should use direct I/O, or | |
4390 | * %false if it should use buffered I/O. | |
4391 | */ | |
4392 | static bool f2fs_should_use_dio(struct inode *inode, struct kiocb *iocb, | |
4393 | struct iov_iter *iter) | |
4394 | { | |
4395 | unsigned int align; | |
4396 | ||
4397 | if (!(iocb->ki_flags & IOCB_DIRECT)) | |
4398 | return false; | |
4399 | ||
bd367329 | 4400 | if (f2fs_force_buffered_io(inode, iov_iter_rw(iter))) |
a1e09b03 EB |
4401 | return false; |
4402 | ||
4403 | /* | |
4404 | * Direct I/O not aligned to the disk's logical_block_size will be | |
4405 | * attempted, but will fail with -EINVAL. | |
4406 | * | |
4407 | * f2fs additionally requires that direct I/O be aligned to the | |
4408 | * filesystem block size, which is often a stricter requirement. | |
4409 | * However, f2fs traditionally falls back to buffered I/O on requests | |
4410 | * that are logical_block_size-aligned but not fs-block aligned. | |
4411 | * | |
4412 | * The below logic implements this behavior. | |
4413 | */ | |
4414 | align = iocb->ki_pos | iov_iter_alignment(iter); | |
4415 | if (!IS_ALIGNED(align, i_blocksize(inode)) && | |
4416 | IS_ALIGNED(align, bdev_logical_block_size(inode->i_sb->s_bdev))) | |
4417 | return false; | |
4418 | ||
4419 | return true; | |
4420 | } | |
4421 | ||
4422 | static int f2fs_dio_read_end_io(struct kiocb *iocb, ssize_t size, int error, | |
4423 | unsigned int flags) | |
4424 | { | |
4425 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp)); | |
4426 | ||
4427 | dec_page_count(sbi, F2FS_DIO_READ); | |
4428 | if (error) | |
4429 | return error; | |
34a23525 | 4430 | f2fs_update_iostat(sbi, NULL, APP_DIRECT_READ_IO, size); |
a1e09b03 EB |
4431 | return 0; |
4432 | } | |
4433 | ||
4434 | static const struct iomap_dio_ops f2fs_iomap_dio_read_ops = { | |
4435 | .end_io = f2fs_dio_read_end_io, | |
4436 | }; | |
4437 | ||
4438 | static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to) | |
4c8ff709 CY |
4439 | { |
4440 | struct file *file = iocb->ki_filp; | |
4441 | struct inode *inode = file_inode(file); | |
a1e09b03 EB |
4442 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
4443 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
4444 | const loff_t pos = iocb->ki_pos; | |
4445 | const size_t count = iov_iter_count(to); | |
4446 | struct iomap_dio *dio; | |
4447 | ssize_t ret; | |
4448 | ||
4449 | if (count == 0) | |
4450 | return 0; /* skip atime update */ | |
4451 | ||
bd984c03 | 4452 | trace_f2fs_direct_IO_enter(inode, iocb, count, READ); |
a1e09b03 EB |
4453 | |
4454 | if (iocb->ki_flags & IOCB_NOWAIT) { | |
e4544b63 | 4455 | if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) { |
a1e09b03 EB |
4456 | ret = -EAGAIN; |
4457 | goto out; | |
4458 | } | |
4459 | } else { | |
e4544b63 | 4460 | f2fs_down_read(&fi->i_gc_rwsem[READ]); |
a1e09b03 EB |
4461 | } |
4462 | ||
4463 | /* | |
4464 | * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of | |
4465 | * the higher-level function iomap_dio_rw() in order to ensure that the | |
4466 | * F2FS_DIO_READ counter will be decremented correctly in all cases. | |
4467 | */ | |
4468 | inc_page_count(sbi, F2FS_DIO_READ); | |
4469 | dio = __iomap_dio_rw(iocb, to, &f2fs_iomap_ops, | |
786f847f | 4470 | &f2fs_iomap_dio_read_ops, 0, NULL, 0); |
a1e09b03 EB |
4471 | if (IS_ERR_OR_NULL(dio)) { |
4472 | ret = PTR_ERR_OR_ZERO(dio); | |
4473 | if (ret != -EIOCBQUEUED) | |
4474 | dec_page_count(sbi, F2FS_DIO_READ); | |
4475 | } else { | |
4476 | ret = iomap_dio_complete(dio); | |
4477 | } | |
4478 | ||
e4544b63 | 4479 | f2fs_up_read(&fi->i_gc_rwsem[READ]); |
a1e09b03 EB |
4480 | |
4481 | file_accessed(file); | |
4482 | out: | |
4483 | trace_f2fs_direct_IO_exit(inode, pos, count, READ, ret); | |
4484 | return ret; | |
4485 | } | |
4486 | ||
ceb11d0e DH |
4487 | static void f2fs_trace_rw_file_path(struct file *file, loff_t pos, size_t count, |
4488 | int rw) | |
a28bca0f | 4489 | { |
ceb11d0e | 4490 | struct inode *inode = file_inode(file); |
a28bca0f CH |
4491 | char *buf, *path; |
4492 | ||
55847850 | 4493 | buf = f2fs_getname(F2FS_I_SB(inode)); |
a28bca0f CH |
4494 | if (!buf) |
4495 | return; | |
ceb11d0e | 4496 | path = dentry_path_raw(file_dentry(file), buf, PATH_MAX); |
a28bca0f CH |
4497 | if (IS_ERR(path)) |
4498 | goto free_buf; | |
4499 | if (rw == WRITE) | |
ceb11d0e | 4500 | trace_f2fs_datawrite_start(inode, pos, count, |
a28bca0f CH |
4501 | current->pid, path, current->comm); |
4502 | else | |
ceb11d0e | 4503 | trace_f2fs_dataread_start(inode, pos, count, |
a28bca0f CH |
4504 | current->pid, path, current->comm); |
4505 | free_buf: | |
55847850 | 4506 | f2fs_putname(buf); |
a28bca0f CH |
4507 | } |
4508 | ||
a1e09b03 EB |
4509 | static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to) |
4510 | { | |
4511 | struct inode *inode = file_inode(iocb->ki_filp); | |
c277f141 | 4512 | const loff_t pos = iocb->ki_pos; |
a1e09b03 | 4513 | ssize_t ret; |
4c8ff709 CY |
4514 | |
4515 | if (!f2fs_is_compress_backend_ready(inode)) | |
4516 | return -EOPNOTSUPP; | |
4517 | ||
a28bca0f | 4518 | if (trace_f2fs_dataread_start_enabled()) |
ceb11d0e DH |
4519 | f2fs_trace_rw_file_path(iocb->ki_filp, iocb->ki_pos, |
4520 | iov_iter_count(to), READ); | |
c277f141 | 4521 | |
c277f141 JK |
4522 | if (f2fs_should_use_dio(inode, iocb, to)) { |
4523 | ret = f2fs_dio_read_iter(iocb, to); | |
4524 | } else { | |
4525 | ret = filemap_read(iocb, to, 0); | |
4526 | if (ret > 0) | |
34a23525 CY |
4527 | f2fs_update_iostat(F2FS_I_SB(inode), inode, |
4528 | APP_BUFFERED_READ_IO, ret); | |
c277f141 JK |
4529 | } |
4530 | if (trace_f2fs_dataread_end_enabled()) | |
4531 | trace_f2fs_dataread_end(inode, pos, ret); | |
8b83ac81 | 4532 | return ret; |
4c8ff709 CY |
4533 | } |
4534 | ||
ceb11d0e DH |
4535 | static ssize_t f2fs_file_splice_read(struct file *in, loff_t *ppos, |
4536 | struct pipe_inode_info *pipe, | |
4537 | size_t len, unsigned int flags) | |
4538 | { | |
4539 | struct inode *inode = file_inode(in); | |
4540 | const loff_t pos = *ppos; | |
4541 | ssize_t ret; | |
4542 | ||
4543 | if (!f2fs_is_compress_backend_ready(inode)) | |
4544 | return -EOPNOTSUPP; | |
4545 | ||
4546 | if (trace_f2fs_dataread_start_enabled()) | |
4547 | f2fs_trace_rw_file_path(in, pos, len, READ); | |
4548 | ||
4549 | ret = filemap_splice_read(in, ppos, pipe, len, flags); | |
4550 | if (ret > 0) | |
4551 | f2fs_update_iostat(F2FS_I_SB(inode), inode, | |
4552 | APP_BUFFERED_READ_IO, ret); | |
4553 | ||
4554 | if (trace_f2fs_dataread_end_enabled()) | |
4555 | trace_f2fs_dataread_end(inode, pos, ret); | |
4556 | return ret; | |
4557 | } | |
4558 | ||
a1e09b03 EB |
4559 | static ssize_t f2fs_write_checks(struct kiocb *iocb, struct iov_iter *from) |
4560 | { | |
4561 | struct file *file = iocb->ki_filp; | |
4562 | struct inode *inode = file_inode(file); | |
4563 | ssize_t count; | |
4564 | int err; | |
4565 | ||
4566 | if (IS_IMMUTABLE(inode)) | |
4567 | return -EPERM; | |
4568 | ||
4569 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) | |
4570 | return -EPERM; | |
4571 | ||
4572 | count = generic_write_checks(iocb, from); | |
4573 | if (count <= 0) | |
4574 | return count; | |
4575 | ||
4576 | err = file_modified(file); | |
4577 | if (err) | |
4578 | return err; | |
4579 | return count; | |
4580 | } | |
4581 | ||
3d697a4a EB |
4582 | /* |
4583 | * Preallocate blocks for a write request, if it is possible and helpful to do | |
4584 | * so. Returns a positive number if blocks may have been preallocated, 0 if no | |
4585 | * blocks were preallocated, or a negative errno value if something went | |
4586 | * seriously wrong. Also sets FI_PREALLOCATED_ALL on the inode if *all* the | |
4587 | * requested blocks (not just some of them) have been allocated. | |
4588 | */ | |
a1e09b03 EB |
4589 | static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter, |
4590 | bool dio) | |
3d697a4a EB |
4591 | { |
4592 | struct inode *inode = file_inode(iocb->ki_filp); | |
4593 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4594 | const loff_t pos = iocb->ki_pos; | |
4595 | const size_t count = iov_iter_count(iter); | |
4596 | struct f2fs_map_blocks map = {}; | |
3d697a4a EB |
4597 | int flag; |
4598 | int ret; | |
4599 | ||
4600 | /* If it will be an out-of-place direct write, don't bother. */ | |
4601 | if (dio && f2fs_lfs_mode(sbi)) | |
4602 | return 0; | |
d4dd19ec JK |
4603 | /* |
4604 | * Don't preallocate holes aligned to DIO_SKIP_HOLES which turns into | |
4605 | * buffered IO, if DIO meets any holes. | |
4606 | */ | |
4607 | if (dio && i_size_read(inode) && | |
4608 | (F2FS_BYTES_TO_BLK(pos) < F2FS_BLK_ALIGN(i_size_read(inode)))) | |
4609 | return 0; | |
3d697a4a EB |
4610 | |
4611 | /* No-wait I/O can't allocate blocks. */ | |
4612 | if (iocb->ki_flags & IOCB_NOWAIT) | |
4613 | return 0; | |
4614 | ||
4615 | /* If it will be a short write, don't bother. */ | |
4616 | if (fault_in_iov_iter_readable(iter, count)) | |
4617 | return 0; | |
4618 | ||
4619 | if (f2fs_has_inline_data(inode)) { | |
4620 | /* If the data will fit inline, don't bother. */ | |
4621 | if (pos + count <= MAX_INLINE_DATA(inode)) | |
4622 | return 0; | |
4623 | ret = f2fs_convert_inline_inode(inode); | |
4624 | if (ret) | |
4625 | return ret; | |
4626 | } | |
4627 | ||
4628 | /* Do not preallocate blocks that will be written partially in 4KB. */ | |
4629 | map.m_lblk = F2FS_BLK_ALIGN(pos); | |
4630 | map.m_len = F2FS_BYTES_TO_BLK(pos + count); | |
4631 | if (map.m_len > map.m_lblk) | |
4632 | map.m_len -= map.m_lblk; | |
4633 | else | |
394e7f4d CY |
4634 | return 0; |
4635 | ||
3d697a4a EB |
4636 | map.m_may_create = true; |
4637 | if (dio) { | |
a320b2f0 CY |
4638 | map.m_seg_type = f2fs_rw_hint_to_seg_type(sbi, |
4639 | inode->i_write_hint); | |
3d697a4a EB |
4640 | flag = F2FS_GET_BLOCK_PRE_DIO; |
4641 | } else { | |
4642 | map.m_seg_type = NO_CHECK_TYPE; | |
4643 | flag = F2FS_GET_BLOCK_PRE_AIO; | |
4644 | } | |
4645 | ||
cd8fc522 | 4646 | ret = f2fs_map_blocks(inode, &map, flag); |
d4dd19ec JK |
4647 | /* -ENOSPC|-EDQUOT are fine to report the number of allocated blocks. */ |
4648 | if (ret < 0 && !((ret == -ENOSPC || ret == -EDQUOT) && map.m_len > 0)) | |
3d697a4a EB |
4649 | return ret; |
4650 | if (ret == 0) | |
4651 | set_inode_flag(inode, FI_PREALLOCATED_ALL); | |
4652 | return map.m_len; | |
4653 | } | |
4654 | ||
a1e09b03 EB |
4655 | static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb, |
4656 | struct iov_iter *from) | |
fcc85a4d | 4657 | { |
b439b103 JK |
4658 | struct file *file = iocb->ki_filp; |
4659 | struct inode *inode = file_inode(file); | |
a1e09b03 EB |
4660 | ssize_t ret; |
4661 | ||
4662 | if (iocb->ki_flags & IOCB_NOWAIT) | |
4663 | return -EOPNOTSUPP; | |
4664 | ||
800ba295 | 4665 | ret = generic_perform_write(iocb, from); |
a1e09b03 EB |
4666 | |
4667 | if (ret > 0) { | |
34a23525 CY |
4668 | f2fs_update_iostat(F2FS_I_SB(inode), inode, |
4669 | APP_BUFFERED_IO, ret); | |
a1e09b03 EB |
4670 | } |
4671 | return ret; | |
4672 | } | |
4673 | ||
4674 | static int f2fs_dio_write_end_io(struct kiocb *iocb, ssize_t size, int error, | |
4675 | unsigned int flags) | |
4676 | { | |
4677 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp)); | |
4678 | ||
4679 | dec_page_count(sbi, F2FS_DIO_WRITE); | |
4680 | if (error) | |
4681 | return error; | |
0cc81b1a | 4682 | f2fs_update_time(sbi, REQ_TIME); |
34a23525 | 4683 | f2fs_update_iostat(sbi, NULL, APP_DIRECT_IO, size); |
a1e09b03 EB |
4684 | return 0; |
4685 | } | |
4686 | ||
7643f3fe JK |
4687 | static void f2fs_dio_write_submit_io(const struct iomap_iter *iter, |
4688 | struct bio *bio, loff_t file_offset) | |
4689 | { | |
4690 | struct inode *inode = iter->inode; | |
4691 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
a320b2f0 | 4692 | int seg_type = f2fs_rw_hint_to_seg_type(sbi, inode->i_write_hint); |
7643f3fe JK |
4693 | enum temp_type temp = f2fs_get_segment_temp(seg_type); |
4694 | ||
4695 | bio->bi_write_hint = f2fs_io_type_to_rw_hint(sbi, DATA, temp); | |
4696 | submit_bio(bio); | |
4697 | } | |
4698 | ||
a1e09b03 | 4699 | static const struct iomap_dio_ops f2fs_iomap_dio_write_ops = { |
7643f3fe JK |
4700 | .end_io = f2fs_dio_write_end_io, |
4701 | .submit_io = f2fs_dio_write_submit_io, | |
a1e09b03 EB |
4702 | }; |
4703 | ||
92318f20 HH |
4704 | static void f2fs_flush_buffered_write(struct address_space *mapping, |
4705 | loff_t start_pos, loff_t end_pos) | |
4706 | { | |
4707 | int ret; | |
4708 | ||
4709 | ret = filemap_write_and_wait_range(mapping, start_pos, end_pos); | |
4710 | if (ret < 0) | |
4711 | return; | |
4712 | invalidate_mapping_pages(mapping, | |
4713 | start_pos >> PAGE_SHIFT, | |
4714 | end_pos >> PAGE_SHIFT); | |
4715 | } | |
4716 | ||
a1e09b03 EB |
4717 | static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from, |
4718 | bool *may_need_sync) | |
4719 | { | |
4720 | struct file *file = iocb->ki_filp; | |
4721 | struct inode *inode = file_inode(file); | |
4722 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
4723 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4724 | const bool do_opu = f2fs_lfs_mode(sbi); | |
a1e09b03 EB |
4725 | const loff_t pos = iocb->ki_pos; |
4726 | const ssize_t count = iov_iter_count(from); | |
a1e09b03 EB |
4727 | unsigned int dio_flags; |
4728 | struct iomap_dio *dio; | |
4729 | ssize_t ret; | |
4730 | ||
bd984c03 | 4731 | trace_f2fs_direct_IO_enter(inode, iocb, count, WRITE); |
a1e09b03 EB |
4732 | |
4733 | if (iocb->ki_flags & IOCB_NOWAIT) { | |
4734 | /* f2fs_convert_inline_inode() and block allocation can block */ | |
4735 | if (f2fs_has_inline_data(inode) || | |
4736 | !f2fs_overwrite_io(inode, pos, count)) { | |
4737 | ret = -EAGAIN; | |
4738 | goto out; | |
4739 | } | |
4740 | ||
e4544b63 | 4741 | if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[WRITE])) { |
a1e09b03 EB |
4742 | ret = -EAGAIN; |
4743 | goto out; | |
4744 | } | |
e4544b63 TM |
4745 | if (do_opu && !f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) { |
4746 | f2fs_up_read(&fi->i_gc_rwsem[WRITE]); | |
a1e09b03 EB |
4747 | ret = -EAGAIN; |
4748 | goto out; | |
4749 | } | |
4750 | } else { | |
4751 | ret = f2fs_convert_inline_inode(inode); | |
4752 | if (ret) | |
4753 | goto out; | |
4754 | ||
e4544b63 | 4755 | f2fs_down_read(&fi->i_gc_rwsem[WRITE]); |
a1e09b03 | 4756 | if (do_opu) |
e4544b63 | 4757 | f2fs_down_read(&fi->i_gc_rwsem[READ]); |
a1e09b03 | 4758 | } |
a1e09b03 EB |
4759 | |
4760 | /* | |
4761 | * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of | |
4762 | * the higher-level function iomap_dio_rw() in order to ensure that the | |
4763 | * F2FS_DIO_WRITE counter will be decremented correctly in all cases. | |
4764 | */ | |
4765 | inc_page_count(sbi, F2FS_DIO_WRITE); | |
4766 | dio_flags = 0; | |
4767 | if (pos + count > inode->i_size) | |
4768 | dio_flags |= IOMAP_DIO_FORCE_WAIT; | |
4769 | dio = __iomap_dio_rw(iocb, from, &f2fs_iomap_ops, | |
786f847f | 4770 | &f2fs_iomap_dio_write_ops, dio_flags, NULL, 0); |
a1e09b03 EB |
4771 | if (IS_ERR_OR_NULL(dio)) { |
4772 | ret = PTR_ERR_OR_ZERO(dio); | |
4773 | if (ret == -ENOTBLK) | |
4774 | ret = 0; | |
4775 | if (ret != -EIOCBQUEUED) | |
4776 | dec_page_count(sbi, F2FS_DIO_WRITE); | |
4777 | } else { | |
4778 | ret = iomap_dio_complete(dio); | |
4779 | } | |
4780 | ||
a1e09b03 | 4781 | if (do_opu) |
e4544b63 TM |
4782 | f2fs_up_read(&fi->i_gc_rwsem[READ]); |
4783 | f2fs_up_read(&fi->i_gc_rwsem[WRITE]); | |
a1e09b03 EB |
4784 | |
4785 | if (ret < 0) | |
4786 | goto out; | |
4787 | if (pos + ret > inode->i_size) | |
4788 | f2fs_i_size_write(inode, pos + ret); | |
4789 | if (!do_opu) | |
4790 | set_inode_flag(inode, FI_UPDATE_WRITE); | |
4791 | ||
4792 | if (iov_iter_count(from)) { | |
4793 | ssize_t ret2; | |
4794 | loff_t bufio_start_pos = iocb->ki_pos; | |
4795 | ||
4796 | /* | |
4797 | * The direct write was partial, so we need to fall back to a | |
4798 | * buffered write for the remainder. | |
4799 | */ | |
4800 | ||
4801 | ret2 = f2fs_buffered_write_iter(iocb, from); | |
4802 | if (iov_iter_count(from)) | |
4803 | f2fs_write_failed(inode, iocb->ki_pos); | |
4804 | if (ret2 < 0) | |
4805 | goto out; | |
4806 | ||
4807 | /* | |
4808 | * Ensure that the pagecache pages are written to disk and | |
4809 | * invalidated to preserve the expected O_DIRECT semantics. | |
4810 | */ | |
4811 | if (ret2 > 0) { | |
4812 | loff_t bufio_end_pos = bufio_start_pos + ret2 - 1; | |
4813 | ||
4814 | ret += ret2; | |
4815 | ||
92318f20 HH |
4816 | f2fs_flush_buffered_write(file->f_mapping, |
4817 | bufio_start_pos, | |
4818 | bufio_end_pos); | |
a1e09b03 EB |
4819 | } |
4820 | } else { | |
4821 | /* iomap_dio_rw() already handled the generic_write_sync(). */ | |
4822 | *may_need_sync = false; | |
4823 | } | |
4824 | out: | |
4825 | trace_f2fs_direct_IO_exit(inode, pos, count, WRITE, ret); | |
4826 | return ret; | |
4827 | } | |
4828 | ||
4829 | static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) | |
4830 | { | |
4831 | struct inode *inode = file_inode(iocb->ki_filp); | |
ccf7cf92 EB |
4832 | const loff_t orig_pos = iocb->ki_pos; |
4833 | const size_t orig_count = iov_iter_count(from); | |
3d697a4a | 4834 | loff_t target_size; |
a1e09b03 EB |
4835 | bool dio; |
4836 | bool may_need_sync = true; | |
3d697a4a | 4837 | int preallocated; |
3fdd89b4 DJ |
4838 | const loff_t pos = iocb->ki_pos; |
4839 | const ssize_t count = iov_iter_count(from); | |
b439b103 | 4840 | ssize_t ret; |
fcc85a4d | 4841 | |
126ce721 CY |
4842 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { |
4843 | ret = -EIO; | |
4844 | goto out; | |
4845 | } | |
1f227a3e | 4846 | |
7bd29358 CY |
4847 | if (!f2fs_is_compress_backend_ready(inode)) { |
4848 | ret = -EOPNOTSUPP; | |
4849 | goto out; | |
4850 | } | |
4c8ff709 | 4851 | |
cb8434f1 GR |
4852 | if (iocb->ki_flags & IOCB_NOWAIT) { |
4853 | if (!inode_trylock(inode)) { | |
126ce721 CY |
4854 | ret = -EAGAIN; |
4855 | goto out; | |
4856 | } | |
cb8434f1 | 4857 | } else { |
b91050a8 HL |
4858 | inode_lock(inode); |
4859 | } | |
4860 | ||
3fdd89b4 DJ |
4861 | if (f2fs_is_pinned_file(inode) && |
4862 | !f2fs_overwrite_io(inode, pos, count)) { | |
4863 | ret = -EIO; | |
4864 | goto out_unlock; | |
4865 | } | |
4866 | ||
a1e09b03 | 4867 | ret = f2fs_write_checks(iocb, from); |
b31bf0f9 EB |
4868 | if (ret <= 0) |
4869 | goto out_unlock; | |
4870 | ||
a1e09b03 EB |
4871 | /* Determine whether we will do a direct write or a buffered write. */ |
4872 | dio = f2fs_should_use_dio(inode, iocb, from); | |
3d697a4a | 4873 | |
b31bf0f9 EB |
4874 | /* Possibly preallocate the blocks for the write. */ |
4875 | target_size = iocb->ki_pos + iov_iter_count(from); | |
a1e09b03 | 4876 | preallocated = f2fs_preallocate_blocks(iocb, from, dio); |
c277f141 | 4877 | if (preallocated < 0) { |
b31bf0f9 | 4878 | ret = preallocated; |
c277f141 | 4879 | } else { |
a28bca0f | 4880 | if (trace_f2fs_datawrite_start_enabled()) |
ceb11d0e DH |
4881 | f2fs_trace_rw_file_path(iocb->ki_filp, iocb->ki_pos, |
4882 | orig_count, WRITE); | |
a28bca0f | 4883 | |
a1e09b03 EB |
4884 | /* Do the actual write. */ |
4885 | ret = dio ? | |
544b53da | 4886 | f2fs_dio_write_iter(iocb, from, &may_need_sync) : |
a1e09b03 | 4887 | f2fs_buffered_write_iter(iocb, from); |
dc7a10dd | 4888 | |
c277f141 JK |
4889 | if (trace_f2fs_datawrite_end_enabled()) |
4890 | trace_f2fs_datawrite_end(inode, orig_pos, ret); | |
4891 | } | |
4892 | ||
b31bf0f9 | 4893 | /* Don't leave any preallocated blocks around past i_size. */ |
d4dd19ec | 4894 | if (preallocated && i_size_read(inode) < target_size) { |
e4544b63 | 4895 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
b31bf0f9 | 4896 | filemap_invalidate_lock(inode->i_mapping); |
d4dd19ec JK |
4897 | if (!f2fs_truncate(inode)) |
4898 | file_dont_truncate(inode); | |
b31bf0f9 | 4899 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 4900 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
d4dd19ec JK |
4901 | } else { |
4902 | file_dont_truncate(inode); | |
b439b103 | 4903 | } |
b31bf0f9 EB |
4904 | |
4905 | clear_inode_flag(inode, FI_PREALLOCATED_ALL); | |
3d697a4a | 4906 | out_unlock: |
b439b103 | 4907 | inode_unlock(inode); |
126ce721 | 4908 | out: |
ccf7cf92 | 4909 | trace_f2fs_file_write_iter(inode, orig_pos, orig_count, ret); |
92318f20 | 4910 | |
a1e09b03 | 4911 | if (ret > 0 && may_need_sync) |
e2592217 | 4912 | ret = generic_write_sync(iocb, ret); |
92318f20 HH |
4913 | |
4914 | /* If buffered IO was forced, flush and drop the data from | |
4915 | * the page cache to preserve O_DIRECT semantics | |
4916 | */ | |
4917 | if (ret > 0 && !dio && (iocb->ki_flags & IOCB_DIRECT)) | |
4918 | f2fs_flush_buffered_write(iocb->ki_filp->f_mapping, | |
4919 | orig_pos, | |
4920 | orig_pos + ret - 1); | |
4921 | ||
b439b103 | 4922 | return ret; |
fcc85a4d JK |
4923 | } |
4924 | ||
0f6b56ec DJ |
4925 | static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len, |
4926 | int advice) | |
4927 | { | |
0f6b56ec DJ |
4928 | struct address_space *mapping; |
4929 | struct backing_dev_info *bdi; | |
e64347ae FC |
4930 | struct inode *inode = file_inode(filp); |
4931 | int err; | |
0f6b56ec DJ |
4932 | |
4933 | if (advice == POSIX_FADV_SEQUENTIAL) { | |
0f6b56ec DJ |
4934 | if (S_ISFIFO(inode->i_mode)) |
4935 | return -ESPIPE; | |
4936 | ||
4937 | mapping = filp->f_mapping; | |
4938 | if (!mapping || len < 0) | |
4939 | return -EINVAL; | |
4940 | ||
4941 | bdi = inode_to_bdi(mapping->host); | |
4942 | filp->f_ra.ra_pages = bdi->ra_pages * | |
4943 | F2FS_I_SB(inode)->seq_file_ra_mul; | |
4944 | spin_lock(&filp->f_lock); | |
4945 | filp->f_mode &= ~FMODE_RANDOM; | |
4946 | spin_unlock(&filp->f_lock); | |
4947 | return 0; | |
3e729e50 JK |
4948 | } else if (advice == POSIX_FADV_WILLNEED && offset == 0) { |
4949 | /* Load extent cache at the first readahead. */ | |
4950 | f2fs_precache_extents(inode); | |
0f6b56ec DJ |
4951 | } |
4952 | ||
e64347ae FC |
4953 | err = generic_fadvise(filp, offset, len, advice); |
4954 | if (!err && advice == POSIX_FADV_DONTNEED && | |
4955 | test_opt(F2FS_I_SB(inode), COMPRESS_CACHE) && | |
4956 | f2fs_compressed_file(inode)) | |
4957 | f2fs_invalidate_compress_pages(F2FS_I_SB(inode), inode->i_ino); | |
4958 | ||
4959 | return err; | |
0f6b56ec DJ |
4960 | } |
4961 | ||
e9750824 | 4962 | #ifdef CONFIG_COMPAT |
34178b1b CY |
4963 | struct compat_f2fs_gc_range { |
4964 | u32 sync; | |
4965 | compat_u64 start; | |
4966 | compat_u64 len; | |
4967 | }; | |
4968 | #define F2FS_IOC32_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11,\ | |
4969 | struct compat_f2fs_gc_range) | |
4970 | ||
4971 | static int f2fs_compat_ioc_gc_range(struct file *file, unsigned long arg) | |
4972 | { | |
4973 | struct compat_f2fs_gc_range __user *urange; | |
4974 | struct f2fs_gc_range range; | |
4975 | int err; | |
4976 | ||
4977 | urange = compat_ptr(arg); | |
4978 | err = get_user(range.sync, &urange->sync); | |
4979 | err |= get_user(range.start, &urange->start); | |
4980 | err |= get_user(range.len, &urange->len); | |
4981 | if (err) | |
4982 | return -EFAULT; | |
4983 | ||
4984 | return __f2fs_ioc_gc_range(file, &range); | |
4985 | } | |
4986 | ||
4987 | struct compat_f2fs_move_range { | |
4988 | u32 dst_fd; | |
4989 | compat_u64 pos_in; | |
4990 | compat_u64 pos_out; | |
4991 | compat_u64 len; | |
4992 | }; | |
4993 | #define F2FS_IOC32_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ | |
4994 | struct compat_f2fs_move_range) | |
4995 | ||
4996 | static int f2fs_compat_ioc_move_range(struct file *file, unsigned long arg) | |
4997 | { | |
4998 | struct compat_f2fs_move_range __user *urange; | |
4999 | struct f2fs_move_range range; | |
5000 | int err; | |
5001 | ||
5002 | urange = compat_ptr(arg); | |
5003 | err = get_user(range.dst_fd, &urange->dst_fd); | |
5004 | err |= get_user(range.pos_in, &urange->pos_in); | |
5005 | err |= get_user(range.pos_out, &urange->pos_out); | |
5006 | err |= get_user(range.len, &urange->len); | |
5007 | if (err) | |
5008 | return -EFAULT; | |
5009 | ||
5010 | return __f2fs_ioc_move_range(file, &range); | |
5011 | } | |
5012 | ||
e9750824 NJ |
5013 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
5014 | { | |
34178b1b CY |
5015 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file))))) |
5016 | return -EIO; | |
5017 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(file)))) | |
5018 | return -ENOSPC; | |
5019 | ||
e9750824 | 5020 | switch (cmd) { |
3357af8f EB |
5021 | case FS_IOC32_GETVERSION: |
5022 | cmd = FS_IOC_GETVERSION; | |
04ef4b62 | 5023 | break; |
34178b1b CY |
5024 | case F2FS_IOC32_GARBAGE_COLLECT_RANGE: |
5025 | return f2fs_compat_ioc_gc_range(file, arg); | |
5026 | case F2FS_IOC32_MOVE_RANGE: | |
5027 | return f2fs_compat_ioc_move_range(file, arg); | |
04ef4b62 | 5028 | case F2FS_IOC_START_ATOMIC_WRITE: |
933141e4 | 5029 | case F2FS_IOC_START_ATOMIC_REPLACE: |
04ef4b62 CY |
5030 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: |
5031 | case F2FS_IOC_START_VOLATILE_WRITE: | |
5032 | case F2FS_IOC_RELEASE_VOLATILE_WRITE: | |
23339e57 | 5033 | case F2FS_IOC_ABORT_ATOMIC_WRITE: |
04ef4b62 | 5034 | case F2FS_IOC_SHUTDOWN: |
314999dc | 5035 | case FITRIM: |
3357af8f EB |
5036 | case FS_IOC_SET_ENCRYPTION_POLICY: |
5037 | case FS_IOC_GET_ENCRYPTION_PWSALT: | |
5038 | case FS_IOC_GET_ENCRYPTION_POLICY: | |
8ce589c7 EB |
5039 | case FS_IOC_GET_ENCRYPTION_POLICY_EX: |
5040 | case FS_IOC_ADD_ENCRYPTION_KEY: | |
5041 | case FS_IOC_REMOVE_ENCRYPTION_KEY: | |
5042 | case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: | |
5043 | case FS_IOC_GET_ENCRYPTION_KEY_STATUS: | |
ee446e1a | 5044 | case FS_IOC_GET_ENCRYPTION_NONCE: |
04ef4b62 CY |
5045 | case F2FS_IOC_GARBAGE_COLLECT: |
5046 | case F2FS_IOC_WRITE_CHECKPOINT: | |
5047 | case F2FS_IOC_DEFRAGMENT: | |
e066b83c | 5048 | case F2FS_IOC_FLUSH_DEVICE: |
e65ef207 | 5049 | case F2FS_IOC_GET_FEATURES: |
1ad71a27 JK |
5050 | case F2FS_IOC_GET_PIN_FILE: |
5051 | case F2FS_IOC_SET_PIN_FILE: | |
c4020b2d | 5052 | case F2FS_IOC_PRECACHE_EXTENTS: |
04f0b2ea | 5053 | case F2FS_IOC_RESIZE_FS: |
95ae251f EB |
5054 | case FS_IOC_ENABLE_VERITY: |
5055 | case FS_IOC_MEASURE_VERITY: | |
e17fe657 | 5056 | case FS_IOC_READ_VERITY_METADATA: |
3357af8f EB |
5057 | case FS_IOC_GETFSLABEL: |
5058 | case FS_IOC_SETFSLABEL: | |
439dfb10 | 5059 | case F2FS_IOC_GET_COMPRESS_BLOCKS: |
ef8d563f | 5060 | case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: |
c75488fb | 5061 | case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: |
9af84648 | 5062 | case F2FS_IOC_SEC_TRIM_FILE: |
9e2a5f8c | 5063 | case F2FS_IOC_GET_COMPRESS_OPTION: |
e1e8debe | 5064 | case F2FS_IOC_SET_COMPRESS_OPTION: |
5fdb322f DJ |
5065 | case F2FS_IOC_DECOMPRESS_FILE: |
5066 | case F2FS_IOC_COMPRESS_FILE: | |
4dd6f977 | 5067 | break; |
e9750824 NJ |
5068 | default: |
5069 | return -ENOIOCTLCMD; | |
5070 | } | |
34178b1b | 5071 | return __f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg)); |
e9750824 NJ |
5072 | } |
5073 | #endif | |
5074 | ||
fbfa2cc5 | 5075 | const struct file_operations f2fs_file_operations = { |
267378d4 | 5076 | .llseek = f2fs_llseek, |
4c8ff709 | 5077 | .read_iter = f2fs_file_read_iter, |
fcc85a4d | 5078 | .write_iter = f2fs_file_write_iter, |
50aa6f44 | 5079 | .iopoll = iocb_bio_iopoll, |
fcc85a4d | 5080 | .open = f2fs_file_open, |
12662234 | 5081 | .release = f2fs_release_file, |
fbfa2cc5 | 5082 | .mmap = f2fs_file_mmap, |
7a10f017 | 5083 | .flush = f2fs_file_flush, |
fbfa2cc5 JK |
5084 | .fsync = f2fs_sync_file, |
5085 | .fallocate = f2fs_fallocate, | |
5086 | .unlocked_ioctl = f2fs_ioctl, | |
e9750824 NJ |
5087 | #ifdef CONFIG_COMPAT |
5088 | .compat_ioctl = f2fs_compat_ioctl, | |
5089 | #endif | |
ceb11d0e | 5090 | .splice_read = f2fs_file_splice_read, |
8d020765 | 5091 | .splice_write = iter_file_splice_write, |
0f6b56ec | 5092 | .fadvise = f2fs_file_fadvise, |
fbfa2cc5 | 5093 | }; |