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); | |
ea4d479b | 42 | vm_fault_t ret; |
5a3a2d83 | 43 | |
ea4d479b | 44 | ret = filemap_fault(vmf); |
8b83ac81 | 45 | if (!ret) |
34a23525 CY |
46 | f2fs_update_iostat(F2FS_I_SB(inode), inode, |
47 | APP_MAPPED_READ_IO, F2FS_BLKSIZE); | |
8b83ac81 | 48 | |
d7648343 CY |
49 | trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret); |
50 | ||
ea4d479b | 51 | return ret; |
5a3a2d83 QS |
52 | } |
53 | ||
ea4d479b | 54 | static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf) |
fbfa2cc5 JK |
55 | { |
56 | struct page *page = vmf->page; | |
11bac800 | 57 | struct inode *inode = file_inode(vmf->vma->vm_file); |
4081363f | 58 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
bdf03299 | 59 | struct dnode_of_data dn; |
4c8ff709 CY |
60 | bool need_alloc = true; |
61 | int err = 0; | |
fbfa2cc5 | 62 | |
e0fcd015 CY |
63 | if (unlikely(IS_IMMUTABLE(inode))) |
64 | return VM_FAULT_SIGBUS; | |
65 | ||
c6140415 JK |
66 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) |
67 | return VM_FAULT_SIGBUS; | |
68 | ||
1f227a3e JK |
69 | if (unlikely(f2fs_cp_error(sbi))) { |
70 | err = -EIO; | |
71 | goto err; | |
72 | } | |
73 | ||
00e09c0b CY |
74 | if (!f2fs_is_checkpoint_ready(sbi)) { |
75 | err = -ENOSPC; | |
955ebcd3 | 76 | goto err; |
00e09c0b | 77 | } |
1f227a3e | 78 | |
c8e43d55 CY |
79 | err = f2fs_convert_inline_inode(inode); |
80 | if (err) | |
81 | goto err; | |
82 | ||
4c8ff709 CY |
83 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
84 | if (f2fs_compressed_file(inode)) { | |
85 | int ret = f2fs_is_compressed_cluster(inode, page->index); | |
86 | ||
87 | if (ret < 0) { | |
88 | err = ret; | |
89 | goto err; | |
90 | } else if (ret) { | |
4c8ff709 CY |
91 | need_alloc = false; |
92 | } | |
93 | } | |
94 | #endif | |
bdf03299 | 95 | /* should do out of any locked page */ |
4c8ff709 CY |
96 | if (need_alloc) |
97 | f2fs_balance_fs(sbi, true); | |
bdf03299 | 98 | |
fbfa2cc5 | 99 | sb_start_pagefault(inode->i_sb); |
b3d208f9 JK |
100 | |
101 | f2fs_bug_on(sbi, f2fs_has_inline_data(inode)); | |
b067ba1f | 102 | |
11bac800 | 103 | file_update_time(vmf->vma->vm_file); |
edc6d01b | 104 | filemap_invalidate_lock_shared(inode->i_mapping); |
fbfa2cc5 | 105 | lock_page(page); |
6bacf52f | 106 | if (unlikely(page->mapping != inode->i_mapping || |
9851e6e1 | 107 | page_offset(page) > i_size_read(inode) || |
6bacf52f | 108 | !PageUptodate(page))) { |
fbfa2cc5 JK |
109 | unlock_page(page); |
110 | err = -EFAULT; | |
5a3a2d83 | 111 | goto out_sem; |
fbfa2cc5 JK |
112 | } |
113 | ||
4c8ff709 CY |
114 | if (need_alloc) { |
115 | /* block allocation */ | |
4c8ff709 | 116 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
cf342d3b | 117 | err = f2fs_get_block_locked(&dn, page->index); |
39a86958 CY |
118 | } |
119 | ||
06c7540f CY |
120 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
121 | if (!need_alloc) { | |
122 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
123 | err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE); | |
124 | f2fs_put_dnode(&dn); | |
125 | } | |
126 | #endif | |
127 | if (err) { | |
128 | unlock_page(page); | |
129 | goto out_sem; | |
39a86958 CY |
130 | } |
131 | ||
bae0ee7a | 132 | f2fs_wait_on_page_writeback(page, DATA, false, true); |
39a86958 CY |
133 | |
134 | /* wait for GCed page writeback via META_MAPPING */ | |
135 | f2fs_wait_on_block_writeback(inode, dn.data_blkaddr); | |
136 | ||
fbfa2cc5 JK |
137 | /* |
138 | * check to see if the page is mapped already (no holes) | |
139 | */ | |
140 | if (PageMappedToDisk(page)) | |
39a86958 | 141 | goto out_sem; |
fbfa2cc5 JK |
142 | |
143 | /* page is wholly or partially inside EOF */ | |
09cbfeaf | 144 | if (((loff_t)(page->index + 1) << PAGE_SHIFT) > |
9edcdabf | 145 | i_size_read(inode)) { |
193bea1d | 146 | loff_t offset; |
f11e98bd | 147 | |
09cbfeaf KS |
148 | offset = i_size_read(inode) & ~PAGE_MASK; |
149 | zero_user_segment(page, offset, PAGE_SIZE); | |
fbfa2cc5 JK |
150 | } |
151 | set_page_dirty(page); | |
237c0790 JK |
152 | if (!PageUptodate(page)) |
153 | SetPageUptodate(page); | |
fbfa2cc5 | 154 | |
34a23525 | 155 | f2fs_update_iostat(sbi, inode, APP_MAPPED_IO, F2FS_BLKSIZE); |
c75f2feb | 156 | f2fs_update_time(sbi, REQ_TIME); |
b0af6d49 | 157 | |
e943a10d | 158 | trace_f2fs_vm_page_mkwrite(page, DATA); |
5a3a2d83 | 159 | out_sem: |
edc6d01b | 160 | filemap_invalidate_unlock_shared(inode->i_mapping); |
39a86958 | 161 | |
fbfa2cc5 | 162 | sb_end_pagefault(inode->i_sb); |
1f227a3e | 163 | err: |
fbfa2cc5 JK |
164 | return block_page_mkwrite_return(err); |
165 | } | |
166 | ||
167 | static const struct vm_operations_struct f2fs_file_vm_ops = { | |
5a3a2d83 | 168 | .fault = f2fs_filemap_fault, |
f1820361 | 169 | .map_pages = filemap_map_pages, |
692bb55d | 170 | .page_mkwrite = f2fs_vm_page_mkwrite, |
fbfa2cc5 JK |
171 | }; |
172 | ||
354a3399 JK |
173 | static int get_parent_ino(struct inode *inode, nid_t *pino) |
174 | { | |
175 | struct dentry *dentry; | |
176 | ||
84c9c2de EB |
177 | /* |
178 | * Make sure to get the non-deleted alias. The alias associated with | |
179 | * the open file descriptor being fsync()'ed may be deleted already. | |
180 | */ | |
181 | dentry = d_find_alias(inode); | |
354a3399 JK |
182 | if (!dentry) |
183 | return 0; | |
184 | ||
f0947e5c JK |
185 | *pino = parent_ino(dentry); |
186 | dput(dentry); | |
354a3399 JK |
187 | return 1; |
188 | } | |
189 | ||
a5fd5050 | 190 | static inline enum cp_reason_type need_do_checkpoint(struct inode *inode) |
9d1589ef | 191 | { |
4081363f | 192 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
a5fd5050 | 193 | enum cp_reason_type cp_reason = CP_NO_NEEDED; |
9d1589ef | 194 | |
a5fd5050 CY |
195 | if (!S_ISREG(inode->i_mode)) |
196 | cp_reason = CP_NON_REGULAR; | |
4c8ff709 CY |
197 | else if (f2fs_compressed_file(inode)) |
198 | cp_reason = CP_COMPRESSED; | |
a5fd5050 CY |
199 | else if (inode->i_nlink != 1) |
200 | cp_reason = CP_HARDLINK; | |
bbf156f7 | 201 | else if (is_sbi_flag_set(sbi, SBI_NEED_CP)) |
a5fd5050 | 202 | cp_reason = CP_SB_NEED_CP; |
9d1589ef | 203 | else if (file_wrong_pino(inode)) |
a5fd5050 | 204 | cp_reason = CP_WRONG_PINO; |
4d57b86d | 205 | else if (!f2fs_space_for_roll_forward(sbi)) |
a5fd5050 | 206 | cp_reason = CP_NO_SPC_ROLL; |
4d57b86d | 207 | else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino)) |
a5fd5050 | 208 | cp_reason = CP_NODE_NEED_CP; |
d5053a34 | 209 | else if (test_opt(sbi, FASTBOOT)) |
a5fd5050 | 210 | cp_reason = CP_FASTBOOT_MODE; |
63189b78 | 211 | else if (F2FS_OPTION(sbi).active_logs == 2) |
a5fd5050 | 212 | cp_reason = CP_SPEC_LOG_NUM; |
63189b78 | 213 | else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT && |
4d57b86d CY |
214 | f2fs_need_dentry_mark(sbi, inode->i_ino) && |
215 | f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino, | |
216 | TRANS_DIR_INO)) | |
0a007b97 | 217 | cp_reason = CP_RECOVER_DIR; |
9d1589ef | 218 | |
a5fd5050 | 219 | return cp_reason; |
9d1589ef CY |
220 | } |
221 | ||
9c7bb702 CL |
222 | static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino) |
223 | { | |
224 | struct page *i = find_get_page(NODE_MAPPING(sbi), ino); | |
225 | bool ret = false; | |
226 | /* But we need to avoid that there are some inode updates */ | |
4d57b86d | 227 | if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino)) |
9c7bb702 CL |
228 | ret = true; |
229 | f2fs_put_page(i, 0); | |
230 | return ret; | |
231 | } | |
232 | ||
51455b19 CL |
233 | static void try_to_fix_pino(struct inode *inode) |
234 | { | |
235 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
236 | nid_t pino; | |
237 | ||
e4544b63 | 238 | f2fs_down_write(&fi->i_sem); |
51455b19 CL |
239 | if (file_wrong_pino(inode) && inode->i_nlink == 1 && |
240 | get_parent_ino(inode, &pino)) { | |
205b9822 | 241 | f2fs_i_pino_write(inode, pino); |
51455b19 | 242 | file_got_pino(inode); |
51455b19 | 243 | } |
e4544b63 | 244 | f2fs_up_write(&fi->i_sem); |
51455b19 CL |
245 | } |
246 | ||
608514de JK |
247 | static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end, |
248 | int datasync, bool atomic) | |
fbfa2cc5 JK |
249 | { |
250 | struct inode *inode = file->f_mapping->host; | |
4081363f | 251 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
2403c155 | 252 | nid_t ino = inode->i_ino; |
fbfa2cc5 | 253 | int ret = 0; |
a5fd5050 | 254 | enum cp_reason_type cp_reason = 0; |
fbfa2cc5 | 255 | struct writeback_control wbc = { |
c81bf1c8 | 256 | .sync_mode = WB_SYNC_ALL, |
fbfa2cc5 JK |
257 | .nr_to_write = LONG_MAX, |
258 | .for_reclaim = 0, | |
259 | }; | |
50fa53ec | 260 | unsigned int seq_id = 0; |
fbfa2cc5 | 261 | |
dddd3d65 | 262 | if (unlikely(f2fs_readonly(inode->i_sb))) |
1fa95b0b NJ |
263 | return 0; |
264 | ||
a2a4a7e4 | 265 | trace_f2fs_sync_file_enter(inode); |
ea1aa12c | 266 | |
b61ac5b7 YH |
267 | if (S_ISDIR(inode->i_mode)) |
268 | goto go_write; | |
269 | ||
ea1aa12c | 270 | /* if fdatasync is triggered, let's do in-place-update */ |
c46a155b | 271 | if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks) |
91942321 | 272 | set_inode_flag(inode, FI_NEED_IPU); |
3b49c9a1 | 273 | ret = file_write_and_wait_range(file, start, end); |
91942321 | 274 | clear_inode_flag(inode, FI_NEED_IPU); |
c1ce1b02 | 275 | |
dddd3d65 | 276 | if (ret || is_sbi_flag_set(sbi, SBI_CP_DISABLED)) { |
a5fd5050 | 277 | trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret); |
fbfa2cc5 | 278 | return ret; |
a2a4a7e4 | 279 | } |
fbfa2cc5 | 280 | |
9c7bb702 | 281 | /* if the inode is dirty, let's recover all the time */ |
281518c6 | 282 | if (!f2fs_skip_inode_update(inode, datasync)) { |
2286c020 | 283 | f2fs_write_inode(inode, NULL); |
9c7bb702 CL |
284 | goto go_write; |
285 | } | |
286 | ||
6d99ba41 JK |
287 | /* |
288 | * if there is no written data, don't waste time to write recovery info. | |
289 | */ | |
91942321 | 290 | if (!is_inode_flag_set(inode, FI_APPEND_WRITE) && |
4d57b86d | 291 | !f2fs_exist_written_data(sbi, ino, APPEND_INO)) { |
19c9c466 | 292 | |
9c7bb702 CL |
293 | /* it may call write_inode just prior to fsync */ |
294 | if (need_inode_page_update(sbi, ino)) | |
19c9c466 | 295 | goto go_write; |
19c9c466 | 296 | |
91942321 | 297 | if (is_inode_flag_set(inode, FI_UPDATE_WRITE) || |
4d57b86d | 298 | f2fs_exist_written_data(sbi, ino, UPDATE_INO)) |
6d99ba41 JK |
299 | goto flush_out; |
300 | goto out; | |
27879915 CY |
301 | } else { |
302 | /* | |
303 | * for OPU case, during fsync(), node can be persisted before | |
304 | * data when lower device doesn't support write barrier, result | |
305 | * in data corruption after SPO. | |
146949de | 306 | * So for strict fsync mode, force to use atomic write semantics |
27879915 CY |
307 | * to keep write order in between data/node and last node to |
308 | * avoid potential data corruption. | |
309 | */ | |
310 | if (F2FS_OPTION(sbi).fsync_mode == | |
311 | FSYNC_MODE_STRICT && !atomic) | |
312 | atomic = true; | |
6d99ba41 | 313 | } |
19c9c466 | 314 | go_write: |
e5d2385e JK |
315 | /* |
316 | * Both of fdatasync() and fsync() are able to be recovered from | |
317 | * sudden-power-off. | |
318 | */ | |
e4544b63 | 319 | f2fs_down_read(&F2FS_I(inode)->i_sem); |
a5fd5050 | 320 | cp_reason = need_do_checkpoint(inode); |
e4544b63 | 321 | f2fs_up_read(&F2FS_I(inode)->i_sem); |
d928bfbf | 322 | |
a5fd5050 | 323 | if (cp_reason) { |
fbfa2cc5 JK |
324 | /* all the dirty node pages should be flushed for POR */ |
325 | ret = f2fs_sync_fs(inode->i_sb, 1); | |
d928bfbf | 326 | |
51455b19 CL |
327 | /* |
328 | * We've secured consistency through sync_fs. Following pino | |
329 | * will be used only for fsynced inodes after checkpoint. | |
330 | */ | |
331 | try_to_fix_pino(inode); | |
91942321 JK |
332 | clear_inode_flag(inode, FI_APPEND_WRITE); |
333 | clear_inode_flag(inode, FI_UPDATE_WRITE); | |
51455b19 CL |
334 | goto out; |
335 | } | |
88bd02c9 | 336 | sync_nodes: |
c29fd0c0 | 337 | atomic_inc(&sbi->wb_sync_req[NODE]); |
50fa53ec | 338 | ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id); |
c29fd0c0 | 339 | atomic_dec(&sbi->wb_sync_req[NODE]); |
c267ec15 JK |
340 | if (ret) |
341 | goto out; | |
51455b19 | 342 | |
871f599f | 343 | /* if cp_error was enabled, we should avoid infinite loop */ |
6d5a1495 CY |
344 | if (unlikely(f2fs_cp_error(sbi))) { |
345 | ret = -EIO; | |
871f599f | 346 | goto out; |
6d5a1495 | 347 | } |
871f599f | 348 | |
4d57b86d | 349 | if (f2fs_need_inode_block_update(sbi, ino)) { |
7c45729a | 350 | f2fs_mark_inode_dirty_sync(inode, true); |
51455b19 CL |
351 | f2fs_write_inode(inode, NULL); |
352 | goto sync_nodes; | |
fbfa2cc5 | 353 | } |
51455b19 | 354 | |
b6a245eb JK |
355 | /* |
356 | * If it's atomic_write, it's just fine to keep write ordering. So | |
357 | * here we don't need to wait for node write completion, since we use | |
358 | * node chain which serializes node blocks. If one of node writes are | |
359 | * reordered, we can see simply broken chain, resulting in stopping | |
360 | * roll-forward recovery. It means we'll recover all or none node blocks | |
361 | * given fsync mark. | |
362 | */ | |
363 | if (!atomic) { | |
50fa53ec | 364 | ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id); |
b6a245eb JK |
365 | if (ret) |
366 | goto out; | |
367 | } | |
51455b19 CL |
368 | |
369 | /* once recovery info is written, don't need to tack this */ | |
4d57b86d | 370 | f2fs_remove_ino_entry(sbi, ino, APPEND_INO); |
91942321 | 371 | clear_inode_flag(inode, FI_APPEND_WRITE); |
51455b19 | 372 | flush_out: |
c550e25b JK |
373 | if ((!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER) || |
374 | (atomic && !test_opt(sbi, NOBARRIER) && f2fs_sb_has_blkzoned(sbi))) | |
39d787be | 375 | ret = f2fs_issue_flush(sbi, inode->i_ino); |
3f06252f | 376 | if (!ret) { |
4d57b86d | 377 | f2fs_remove_ino_entry(sbi, ino, UPDATE_INO); |
3f06252f | 378 | clear_inode_flag(inode, FI_UPDATE_WRITE); |
4d57b86d | 379 | f2fs_remove_ino_entry(sbi, ino, FLUSH_INO); |
3f06252f | 380 | } |
d0239e1b | 381 | f2fs_update_time(sbi, REQ_TIME); |
fbfa2cc5 | 382 | out: |
a5fd5050 | 383 | trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret); |
fbfa2cc5 JK |
384 | return ret; |
385 | } | |
386 | ||
608514de JK |
387 | int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) |
388 | { | |
1f227a3e JK |
389 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file))))) |
390 | return -EIO; | |
608514de JK |
391 | return f2fs_do_sync_file(file, start, end, datasync, false); |
392 | } | |
393 | ||
4cb03fec MWO |
394 | static bool __found_offset(struct address_space *mapping, block_t blkaddr, |
395 | pgoff_t index, int whence) | |
7f7670fe JK |
396 | { |
397 | switch (whence) { | |
398 | case SEEK_DATA: | |
4cb03fec MWO |
399 | if (__is_valid_data_blkaddr(blkaddr)) |
400 | return true; | |
401 | if (blkaddr == NEW_ADDR && | |
402 | xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY)) | |
7f7670fe JK |
403 | return true; |
404 | break; | |
405 | case SEEK_HOLE: | |
406 | if (blkaddr == NULL_ADDR) | |
407 | return true; | |
408 | break; | |
409 | } | |
410 | return false; | |
411 | } | |
412 | ||
267378d4 CY |
413 | static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence) |
414 | { | |
415 | struct inode *inode = file->f_mapping->host; | |
416 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
417 | struct dnode_of_data dn; | |
4cb03fec | 418 | pgoff_t pgofs, end_offset; |
7f7670fe JK |
419 | loff_t data_ofs = offset; |
420 | loff_t isize; | |
267378d4 CY |
421 | int err = 0; |
422 | ||
5955102c | 423 | inode_lock(inode); |
267378d4 CY |
424 | |
425 | isize = i_size_read(inode); | |
426 | if (offset >= isize) | |
427 | goto fail; | |
428 | ||
429 | /* handle inline data case */ | |
7a6e59d7 CY |
430 | if (f2fs_has_inline_data(inode)) { |
431 | if (whence == SEEK_HOLE) { | |
432 | data_ofs = isize; | |
433 | goto found; | |
434 | } else if (whence == SEEK_DATA) { | |
435 | data_ofs = offset; | |
436 | goto found; | |
437 | } | |
267378d4 CY |
438 | } |
439 | ||
09cbfeaf | 440 | pgofs = (pgoff_t)(offset >> PAGE_SHIFT); |
267378d4 | 441 | |
09cbfeaf | 442 | for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) { |
267378d4 | 443 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 444 | err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE); |
267378d4 CY |
445 | if (err && err != -ENOENT) { |
446 | goto fail; | |
447 | } else if (err == -ENOENT) { | |
e1c42045 | 448 | /* direct node does not exists */ |
267378d4 | 449 | if (whence == SEEK_DATA) { |
4d57b86d | 450 | pgofs = f2fs_get_next_page_offset(&dn, pgofs); |
267378d4 CY |
451 | continue; |
452 | } else { | |
453 | goto found; | |
454 | } | |
455 | } | |
456 | ||
81ca7350 | 457 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
267378d4 CY |
458 | |
459 | /* find data/hole in dnode block */ | |
460 | for (; dn.ofs_in_node < end_offset; | |
461 | dn.ofs_in_node++, pgofs++, | |
09cbfeaf | 462 | data_ofs = (loff_t)pgofs << PAGE_SHIFT) { |
267378d4 | 463 | block_t blkaddr; |
f11e98bd | 464 | |
a2ced1ce | 465 | blkaddr = f2fs_data_blkaddr(&dn); |
267378d4 | 466 | |
c9b60788 CY |
467 | if (__is_valid_data_blkaddr(blkaddr) && |
468 | !f2fs_is_valid_blkaddr(F2FS_I_SB(inode), | |
93770ab7 | 469 | blkaddr, DATA_GENERIC_ENHANCE)) { |
c9b60788 CY |
470 | f2fs_put_dnode(&dn); |
471 | goto fail; | |
472 | } | |
473 | ||
4cb03fec | 474 | if (__found_offset(file->f_mapping, blkaddr, |
e1da7872 | 475 | pgofs, whence)) { |
267378d4 CY |
476 | f2fs_put_dnode(&dn); |
477 | goto found; | |
478 | } | |
479 | } | |
480 | f2fs_put_dnode(&dn); | |
481 | } | |
482 | ||
483 | if (whence == SEEK_DATA) | |
484 | goto fail; | |
267378d4 | 485 | found: |
fe369bc8 JK |
486 | if (whence == SEEK_HOLE && data_ofs > isize) |
487 | data_ofs = isize; | |
5955102c | 488 | inode_unlock(inode); |
267378d4 CY |
489 | return vfs_setpos(file, data_ofs, maxbytes); |
490 | fail: | |
5955102c | 491 | inode_unlock(inode); |
267378d4 CY |
492 | return -ENXIO; |
493 | } | |
494 | ||
495 | static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence) | |
496 | { | |
497 | struct inode *inode = file->f_mapping->host; | |
498 | loff_t maxbytes = inode->i_sb->s_maxbytes; | |
499 | ||
6d1451bf CX |
500 | if (f2fs_compressed_file(inode)) |
501 | maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS; | |
502 | ||
267378d4 CY |
503 | switch (whence) { |
504 | case SEEK_SET: | |
505 | case SEEK_CUR: | |
506 | case SEEK_END: | |
507 | return generic_file_llseek_size(file, offset, whence, | |
508 | maxbytes, i_size_read(inode)); | |
509 | case SEEK_DATA: | |
510 | case SEEK_HOLE: | |
0b4c5afd JK |
511 | if (offset < 0) |
512 | return -ENXIO; | |
267378d4 CY |
513 | return f2fs_seek_block(file, offset, whence); |
514 | } | |
515 | ||
516 | return -EINVAL; | |
517 | } | |
518 | ||
fbfa2cc5 JK |
519 | static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma) |
520 | { | |
b3d208f9 JK |
521 | struct inode *inode = file_inode(file); |
522 | ||
1f227a3e JK |
523 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
524 | return -EIO; | |
525 | ||
4c8ff709 CY |
526 | if (!f2fs_is_compress_backend_ready(inode)) |
527 | return -EOPNOTSUPP; | |
528 | ||
fbfa2cc5 JK |
529 | file_accessed(file); |
530 | vma->vm_ops = &f2fs_file_vm_ops; | |
4c8ff709 | 531 | set_inode_flag(inode, FI_MMAP_FILE); |
fbfa2cc5 JK |
532 | return 0; |
533 | } | |
534 | ||
fcc85a4d JK |
535 | static int f2fs_file_open(struct inode *inode, struct file *filp) |
536 | { | |
2e168c82 | 537 | int err = fscrypt_file_open(inode, filp); |
fcc85a4d | 538 | |
95ae251f EB |
539 | if (err) |
540 | return err; | |
541 | ||
4c8ff709 CY |
542 | if (!f2fs_is_compress_backend_ready(inode)) |
543 | return -EOPNOTSUPP; | |
544 | ||
95ae251f | 545 | err = fsverity_file_open(inode, filp); |
2e168c82 EB |
546 | if (err) |
547 | return err; | |
b91050a8 HL |
548 | |
549 | filp->f_mode |= FMODE_NOWAIT; | |
550 | ||
0abd675e | 551 | return dquot_file_open(inode, filp); |
fcc85a4d JK |
552 | } |
553 | ||
4d57b86d | 554 | void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count) |
fbfa2cc5 | 555 | { |
4081363f | 556 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
fbfa2cc5 | 557 | struct f2fs_node *raw_node; |
19b2c30d | 558 | int nr_free = 0, ofs = dn->ofs_in_node, len = count; |
fbfa2cc5 | 559 | __le32 *addr; |
7a2af766 | 560 | int base = 0; |
4c8ff709 CY |
561 | bool compressed_cluster = false; |
562 | int cluster_index = 0, valid_blocks = 0; | |
563 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
c2759eba | 564 | bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks); |
7a2af766 CY |
565 | |
566 | if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode)) | |
567 | base = get_extra_isize(dn->inode); | |
fbfa2cc5 | 568 | |
45590710 | 569 | raw_node = F2FS_NODE(dn->node_page); |
7a2af766 | 570 | addr = blkaddr_in_node(raw_node) + base + ofs; |
fbfa2cc5 | 571 | |
a5029a57 | 572 | /* Assumption: truncation starts with cluster */ |
4c8ff709 | 573 | for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) { |
fbfa2cc5 | 574 | block_t blkaddr = le32_to_cpu(*addr); |
f11e98bd | 575 | |
4c8ff709 CY |
576 | if (f2fs_compressed_file(dn->inode) && |
577 | !(cluster_index & (cluster_size - 1))) { | |
578 | if (compressed_cluster) | |
579 | f2fs_i_compr_blocks_update(dn->inode, | |
580 | valid_blocks, false); | |
581 | compressed_cluster = (blkaddr == COMPRESS_ADDR); | |
582 | valid_blocks = 0; | |
583 | } | |
584 | ||
fbfa2cc5 JK |
585 | if (blkaddr == NULL_ADDR) |
586 | continue; | |
587 | ||
e1509cf2 | 588 | dn->data_blkaddr = NULL_ADDR; |
4d57b86d | 589 | f2fs_set_data_blkaddr(dn); |
c9b60788 | 590 | |
4c8ff709 CY |
591 | if (__is_valid_data_blkaddr(blkaddr)) { |
592 | if (!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
93770ab7 | 593 | DATA_GENERIC_ENHANCE)) |
4c8ff709 CY |
594 | continue; |
595 | if (compressed_cluster) | |
596 | valid_blocks++; | |
597 | } | |
c9b60788 | 598 | |
3c6c2beb | 599 | if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page)) |
91942321 | 600 | clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN); |
4c8ff709 CY |
601 | |
602 | f2fs_invalidate_blocks(sbi, blkaddr); | |
ef8d563f CY |
603 | |
604 | if (!released || blkaddr != COMPRESS_ADDR) | |
605 | nr_free++; | |
fbfa2cc5 | 606 | } |
19b2c30d | 607 | |
4c8ff709 CY |
608 | if (compressed_cluster) |
609 | f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false); | |
610 | ||
fbfa2cc5 | 611 | if (nr_free) { |
19b2c30d CY |
612 | pgoff_t fofs; |
613 | /* | |
614 | * once we invalidate valid blkaddr in range [ofs, ofs + count], | |
615 | * we will invalidate all blkaddr in the whole range. | |
616 | */ | |
4d57b86d | 617 | fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page), |
81ca7350 | 618 | dn->inode) + ofs; |
e7547dac | 619 | f2fs_update_read_extent_cache_range(dn, fofs, 0, len); |
8c0ed062 | 620 | f2fs_update_age_extent_cache_range(dn, fofs, len); |
d7cc950b | 621 | dec_valid_block_count(sbi, dn->inode, nr_free); |
fbfa2cc5 JK |
622 | } |
623 | dn->ofs_in_node = ofs; | |
51dd6249 | 624 | |
d0239e1b | 625 | f2fs_update_time(sbi, REQ_TIME); |
51dd6249 NJ |
626 | trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid, |
627 | dn->ofs_in_node, nr_free); | |
fbfa2cc5 JK |
628 | } |
629 | ||
4d57b86d | 630 | void f2fs_truncate_data_blocks(struct dnode_of_data *dn) |
fbfa2cc5 | 631 | { |
d02a6e61 | 632 | f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode)); |
fbfa2cc5 JK |
633 | } |
634 | ||
0bfcfcca | 635 | static int truncate_partial_data_page(struct inode *inode, u64 from, |
43f3eae1 | 636 | bool cache_only) |
fbfa2cc5 | 637 | { |
193bea1d | 638 | loff_t offset = from & (PAGE_SIZE - 1); |
09cbfeaf | 639 | pgoff_t index = from >> PAGE_SHIFT; |
43f3eae1 | 640 | struct address_space *mapping = inode->i_mapping; |
fbfa2cc5 JK |
641 | struct page *page; |
642 | ||
43f3eae1 | 643 | if (!offset && !cache_only) |
b3d208f9 | 644 | return 0; |
fbfa2cc5 | 645 | |
43f3eae1 | 646 | if (cache_only) { |
34b5d5c2 | 647 | page = find_lock_page(mapping, index); |
43f3eae1 JK |
648 | if (page && PageUptodate(page)) |
649 | goto truncate_out; | |
650 | f2fs_put_page(page, 1); | |
b3d208f9 | 651 | return 0; |
43f3eae1 | 652 | } |
fbfa2cc5 | 653 | |
4d57b86d | 654 | page = f2fs_get_lock_data_page(inode, index, true); |
43f3eae1 | 655 | if (IS_ERR(page)) |
a78aaa2c | 656 | return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page); |
43f3eae1 | 657 | truncate_out: |
bae0ee7a | 658 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
09cbfeaf | 659 | zero_user(page, offset, PAGE_SIZE - offset); |
a9bcf9bc JK |
660 | |
661 | /* An encrypted inode should have a key and truncate the last page. */ | |
62230e0d | 662 | f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode)); |
a9bcf9bc | 663 | if (!cache_only) |
0bfcfcca | 664 | set_page_dirty(page); |
fbfa2cc5 | 665 | f2fs_put_page(page, 1); |
b3d208f9 | 666 | return 0; |
fbfa2cc5 JK |
667 | } |
668 | ||
3265d3db | 669 | int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock) |
fbfa2cc5 | 670 | { |
4081363f | 671 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
672 | struct dnode_of_data dn; |
673 | pgoff_t free_from; | |
9ffe0fb5 | 674 | int count = 0, err = 0; |
b3d208f9 | 675 | struct page *ipage; |
0bfcfcca | 676 | bool truncate_page = false; |
fbfa2cc5 | 677 | |
51dd6249 NJ |
678 | trace_f2fs_truncate_blocks_enter(inode, from); |
679 | ||
df033caf | 680 | free_from = (pgoff_t)F2FS_BLK_ALIGN(from); |
fbfa2cc5 | 681 | |
6d1451bf | 682 | if (free_from >= max_file_blocks(inode)) |
09210c97 CY |
683 | goto free_partial; |
684 | ||
764aa3e9 | 685 | if (lock) |
c42d28ce | 686 | f2fs_lock_op(sbi); |
9ffe0fb5 | 687 | |
4d57b86d | 688 | ipage = f2fs_get_node_page(sbi, inode->i_ino); |
b3d208f9 JK |
689 | if (IS_ERR(ipage)) { |
690 | err = PTR_ERR(ipage); | |
691 | goto out; | |
692 | } | |
693 | ||
694 | if (f2fs_has_inline_data(inode)) { | |
4d57b86d | 695 | f2fs_truncate_inline_inode(inode, ipage, from); |
b3d208f9 | 696 | f2fs_put_page(ipage, 1); |
0bfcfcca | 697 | truncate_page = true; |
b3d208f9 JK |
698 | goto out; |
699 | } | |
700 | ||
701 | set_new_dnode(&dn, inode, ipage, NULL, 0); | |
4d57b86d | 702 | err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA); |
fbfa2cc5 JK |
703 | if (err) { |
704 | if (err == -ENOENT) | |
705 | goto free_next; | |
b3d208f9 | 706 | goto out; |
1ce86bf6 JK |
707 | } |
708 | ||
81ca7350 | 709 | count = ADDRS_PER_PAGE(dn.node_page, inode); |
fbfa2cc5 JK |
710 | |
711 | count -= dn.ofs_in_node; | |
9850cf4a | 712 | f2fs_bug_on(sbi, count < 0); |
39936837 | 713 | |
fbfa2cc5 | 714 | if (dn.ofs_in_node || IS_INODE(dn.node_page)) { |
4d57b86d | 715 | f2fs_truncate_data_blocks_range(&dn, count); |
fbfa2cc5 JK |
716 | free_from += count; |
717 | } | |
718 | ||
719 | f2fs_put_dnode(&dn); | |
720 | free_next: | |
4d57b86d | 721 | err = f2fs_truncate_inode_blocks(inode, free_from); |
764d2c80 JK |
722 | out: |
723 | if (lock) | |
c42d28ce | 724 | f2fs_unlock_op(sbi); |
09210c97 | 725 | free_partial: |
b3d208f9 JK |
726 | /* lastly zero out the first data page */ |
727 | if (!err) | |
0bfcfcca | 728 | err = truncate_partial_data_page(inode, from, truncate_page); |
fbfa2cc5 | 729 | |
51dd6249 | 730 | trace_f2fs_truncate_blocks_exit(inode, err); |
fbfa2cc5 JK |
731 | return err; |
732 | } | |
733 | ||
4c8ff709 CY |
734 | int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock) |
735 | { | |
736 | u64 free_from = from; | |
3265d3db | 737 | int err; |
4c8ff709 | 738 | |
3265d3db | 739 | #ifdef CONFIG_F2FS_FS_COMPRESSION |
4c8ff709 CY |
740 | /* |
741 | * for compressed file, only support cluster size | |
742 | * aligned truncation. | |
743 | */ | |
4fec3fc0 CY |
744 | if (f2fs_compressed_file(inode)) |
745 | free_from = round_up(from, | |
746 | F2FS_I(inode)->i_cluster_size << PAGE_SHIFT); | |
3265d3db CY |
747 | #endif |
748 | ||
749 | err = f2fs_do_truncate_blocks(inode, free_from, lock); | |
750 | if (err) | |
751 | return err; | |
752 | ||
753 | #ifdef CONFIG_F2FS_FS_COMPRESSION | |
4a4fc043 FC |
754 | /* |
755 | * For compressed file, after release compress blocks, don't allow write | |
756 | * direct, but we should allow write direct after truncate to zero. | |
757 | */ | |
758 | if (f2fs_compressed_file(inode) && !free_from | |
759 | && is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) | |
760 | clear_inode_flag(inode, FI_COMPRESS_RELEASED); | |
761 | ||
17d7648d | 762 | if (from != free_from) { |
3265d3db | 763 | err = f2fs_truncate_partial_cluster(inode, from, lock); |
17d7648d CY |
764 | if (err) |
765 | return err; | |
766 | } | |
3265d3db | 767 | #endif |
4c8ff709 | 768 | |
17d7648d | 769 | return 0; |
4c8ff709 CY |
770 | } |
771 | ||
9a449e9c | 772 | int f2fs_truncate(struct inode *inode) |
fbfa2cc5 | 773 | { |
b0154891 CY |
774 | int err; |
775 | ||
1f227a3e JK |
776 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
777 | return -EIO; | |
778 | ||
fbfa2cc5 JK |
779 | if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || |
780 | S_ISLNK(inode->i_mode))) | |
b0154891 | 781 | return 0; |
fbfa2cc5 | 782 | |
51dd6249 NJ |
783 | trace_f2fs_truncate(inode); |
784 | ||
c40e15a9 | 785 | if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) |
14b44d23 | 786 | return -EIO; |
7fa750a1 | 787 | |
10a26878 | 788 | err = f2fs_dquot_initialize(inode); |
25fb04db YC |
789 | if (err) |
790 | return err; | |
791 | ||
92dffd01 | 792 | /* we should check inline_data size */ |
b9d777b8 | 793 | if (!f2fs_may_inline_data(inode)) { |
b0154891 CY |
794 | err = f2fs_convert_inline_inode(inode); |
795 | if (err) | |
796 | return err; | |
92dffd01 JK |
797 | } |
798 | ||
c42d28ce | 799 | err = f2fs_truncate_blocks(inode, i_size_read(inode), true); |
b0154891 CY |
800 | if (err) |
801 | return err; | |
802 | ||
078cd827 | 803 | inode->i_mtime = inode->i_ctime = current_time(inode); |
7c45729a | 804 | f2fs_mark_inode_dirty_sync(inode, false); |
b0154891 | 805 | return 0; |
fbfa2cc5 JK |
806 | } |
807 | ||
bd367329 | 808 | static bool f2fs_force_buffered_io(struct inode *inode, int rw) |
2db0487f EB |
809 | { |
810 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2db0487f EB |
811 | |
812 | if (!fscrypt_dio_supported(inode)) | |
813 | return true; | |
814 | if (fsverity_active(inode)) | |
815 | return true; | |
816 | if (f2fs_compressed_file(inode)) | |
817 | return true; | |
818 | ||
819 | /* disallow direct IO if any of devices has unaligned blksize */ | |
820 | if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize) | |
821 | return true; | |
5d170fe4 LT |
822 | /* |
823 | * for blkzoned device, fallback direct IO to buffered IO, so | |
824 | * all IOs can be serialized by log-structured write. | |
825 | */ | |
826 | if (f2fs_sb_has_blkzoned(sbi) && (rw == WRITE)) | |
827 | return true; | |
bd367329 EB |
828 | if (f2fs_lfs_mode(sbi) && rw == WRITE && F2FS_IO_ALIGNED(sbi)) |
829 | return true; | |
830 | if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) | |
2db0487f EB |
831 | return true; |
832 | ||
833 | return false; | |
834 | } | |
835 | ||
b74d24f7 | 836 | int f2fs_getattr(struct mnt_idmap *idmap, const struct path *path, |
549c7297 | 837 | struct kstat *stat, u32 request_mask, unsigned int query_flags) |
fbfa2cc5 | 838 | { |
a528d35e | 839 | struct inode *inode = d_inode(path->dentry); |
1c6d8ee4 | 840 | struct f2fs_inode_info *fi = F2FS_I(inode); |
d13732cc | 841 | struct f2fs_inode *ri = NULL; |
1c6d8ee4 CY |
842 | unsigned int flags; |
843 | ||
1c1d35df | 844 | if (f2fs_has_extra_attr(inode) && |
7beb01f7 | 845 | f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) && |
1c1d35df CY |
846 | F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) { |
847 | stat->result_mask |= STATX_BTIME; | |
848 | stat->btime.tv_sec = fi->i_crtime.tv_sec; | |
849 | stat->btime.tv_nsec = fi->i_crtime.tv_nsec; | |
850 | } | |
851 | ||
c8c02272 EB |
852 | /* |
853 | * Return the DIO alignment restrictions if requested. We only return | |
854 | * this information when requested, since on encrypted files it might | |
855 | * take a fair bit of work to get if the file wasn't opened recently. | |
856 | * | |
857 | * f2fs sometimes supports DIO reads but not DIO writes. STATX_DIOALIGN | |
858 | * cannot represent that, so in that case we report no DIO support. | |
859 | */ | |
860 | if ((request_mask & STATX_DIOALIGN) && S_ISREG(inode->i_mode)) { | |
861 | unsigned int bsize = i_blocksize(inode); | |
862 | ||
863 | stat->result_mask |= STATX_DIOALIGN; | |
864 | if (!f2fs_force_buffered_io(inode, WRITE)) { | |
865 | stat->dio_mem_align = bsize; | |
866 | stat->dio_offset_align = bsize; | |
867 | } | |
868 | } | |
869 | ||
36098557 | 870 | flags = fi->i_flags; |
fd26725f CY |
871 | if (flags & F2FS_COMPR_FL) |
872 | stat->attributes |= STATX_ATTR_COMPRESSED; | |
59c84408 | 873 | if (flags & F2FS_APPEND_FL) |
1c6d8ee4 | 874 | stat->attributes |= STATX_ATTR_APPEND; |
62230e0d | 875 | if (IS_ENCRYPTED(inode)) |
1c6d8ee4 | 876 | stat->attributes |= STATX_ATTR_ENCRYPTED; |
59c84408 | 877 | if (flags & F2FS_IMMUTABLE_FL) |
1c6d8ee4 | 878 | stat->attributes |= STATX_ATTR_IMMUTABLE; |
59c84408 | 879 | if (flags & F2FS_NODUMP_FL) |
1c6d8ee4 | 880 | stat->attributes |= STATX_ATTR_NODUMP; |
924e3194 EB |
881 | if (IS_VERITY(inode)) |
882 | stat->attributes |= STATX_ATTR_VERITY; | |
1c6d8ee4 | 883 | |
fd26725f CY |
884 | stat->attributes_mask |= (STATX_ATTR_COMPRESSED | |
885 | STATX_ATTR_APPEND | | |
1c6d8ee4 CY |
886 | STATX_ATTR_ENCRYPTED | |
887 | STATX_ATTR_IMMUTABLE | | |
924e3194 EB |
888 | STATX_ATTR_NODUMP | |
889 | STATX_ATTR_VERITY); | |
1c6d8ee4 | 890 | |
b74d24f7 | 891 | generic_fillattr(idmap, inode, stat); |
5b4267d1 JK |
892 | |
893 | /* we need to show initial sectors used for inline_data/dentries */ | |
894 | if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) || | |
895 | f2fs_has_inline_dentry(inode)) | |
896 | stat->blocks += (stat->size + 511) >> 9; | |
897 | ||
fbfa2cc5 JK |
898 | return 0; |
899 | } | |
900 | ||
901 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
c1632a0f | 902 | static void __setattr_copy(struct mnt_idmap *idmap, |
e65ce2a5 | 903 | struct inode *inode, const struct iattr *attr) |
fbfa2cc5 | 904 | { |
fbfa2cc5 JK |
905 | unsigned int ia_valid = attr->ia_valid; |
906 | ||
0dbe12f2 CB |
907 | i_uid_update(idmap, attr, inode); |
908 | i_gid_update(idmap, attr, inode); | |
eb31e2f6 AG |
909 | if (ia_valid & ATTR_ATIME) |
910 | inode->i_atime = attr->ia_atime; | |
911 | if (ia_valid & ATTR_MTIME) | |
912 | inode->i_mtime = attr->ia_mtime; | |
913 | if (ia_valid & ATTR_CTIME) | |
914 | inode->i_ctime = attr->ia_ctime; | |
fbfa2cc5 JK |
915 | if (ia_valid & ATTR_MODE) { |
916 | umode_t mode = attr->ia_mode; | |
e67fe633 | 917 | vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode); |
fbfa2cc5 | 918 | |
1e8a9191 | 919 | if (!vfsgid_in_group_p(vfsgid) && |
9452e93e | 920 | !capable_wrt_inode_uidgid(idmap, inode, CAP_FSETID)) |
fbfa2cc5 | 921 | mode &= ~S_ISGID; |
91942321 | 922 | set_acl_inode(inode, mode); |
fbfa2cc5 JK |
923 | } |
924 | } | |
925 | #else | |
926 | #define __setattr_copy setattr_copy | |
927 | #endif | |
928 | ||
c1632a0f | 929 | int f2fs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, |
549c7297 | 930 | struct iattr *attr) |
fbfa2cc5 | 931 | { |
2b0143b5 | 932 | struct inode *inode = d_inode(dentry); |
fbfa2cc5 JK |
933 | int err; |
934 | ||
1f227a3e JK |
935 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
936 | return -EIO; | |
937 | ||
e0fcd015 CY |
938 | if (unlikely(IS_IMMUTABLE(inode))) |
939 | return -EPERM; | |
940 | ||
941 | if (unlikely(IS_APPEND(inode) && | |
942 | (attr->ia_valid & (ATTR_MODE | ATTR_UID | | |
943 | ATTR_GID | ATTR_TIMES_SET)))) | |
944 | return -EPERM; | |
945 | ||
4c8ff709 CY |
946 | if ((attr->ia_valid & ATTR_SIZE) && |
947 | !f2fs_is_compress_backend_ready(inode)) | |
948 | return -EOPNOTSUPP; | |
949 | ||
c1632a0f | 950 | err = setattr_prepare(idmap, dentry, attr); |
fbfa2cc5 JK |
951 | if (err) |
952 | return err; | |
953 | ||
20bb2479 EB |
954 | err = fscrypt_prepare_setattr(dentry, attr); |
955 | if (err) | |
956 | return err; | |
957 | ||
95ae251f EB |
958 | err = fsverity_prepare_setattr(dentry, attr); |
959 | if (err) | |
960 | return err; | |
961 | ||
f861646a | 962 | if (is_quota_modification(idmap, inode, attr)) { |
10a26878 | 963 | err = f2fs_dquot_initialize(inode); |
0abd675e CY |
964 | if (err) |
965 | return err; | |
966 | } | |
0dbe12f2 CB |
967 | if (i_uid_needs_update(idmap, attr, inode) || |
968 | i_gid_needs_update(idmap, attr, inode)) { | |
af033b2a | 969 | f2fs_lock_op(F2FS_I_SB(inode)); |
f861646a | 970 | err = dquot_transfer(idmap, inode, attr); |
af033b2a CY |
971 | if (err) { |
972 | set_sbi_flag(F2FS_I_SB(inode), | |
973 | SBI_QUOTA_NEED_REPAIR); | |
974 | f2fs_unlock_op(F2FS_I_SB(inode)); | |
0abd675e | 975 | return err; |
af033b2a CY |
976 | } |
977 | /* | |
978 | * update uid/gid under lock_op(), so that dquot and inode can | |
979 | * be updated atomically. | |
980 | */ | |
0dbe12f2 CB |
981 | i_uid_update(idmap, attr, inode); |
982 | i_gid_update(idmap, attr, inode); | |
af033b2a CY |
983 | f2fs_mark_inode_dirty_sync(inode, true); |
984 | f2fs_unlock_op(F2FS_I_SB(inode)); | |
0abd675e CY |
985 | } |
986 | ||
09db6a2e | 987 | if (attr->ia_valid & ATTR_SIZE) { |
cfb9a34d JK |
988 | loff_t old_size = i_size_read(inode); |
989 | ||
990 | if (attr->ia_size > MAX_INLINE_DATA(inode)) { | |
991 | /* | |
992 | * should convert inline inode before i_size_write to | |
993 | * keep smaller than inline_data size with inline flag. | |
994 | */ | |
995 | err = f2fs_convert_inline_inode(inode); | |
996 | if (err) | |
997 | return err; | |
998 | } | |
a33c1502 | 999 | |
e4544b63 | 1000 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1001 | filemap_invalidate_lock(inode->i_mapping); |
a33c1502 CY |
1002 | |
1003 | truncate_setsize(inode, attr->ia_size); | |
1004 | ||
cfb9a34d | 1005 | if (attr->ia_size <= old_size) |
9a449e9c | 1006 | err = f2fs_truncate(inode); |
a33c1502 CY |
1007 | /* |
1008 | * do not trim all blocks after i_size if target size is | |
1009 | * larger than i_size. | |
1010 | */ | |
edc6d01b | 1011 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 1012 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
a33c1502 CY |
1013 | if (err) |
1014 | return err; | |
0cab80ee | 1015 | |
c10c9820 | 1016 | spin_lock(&F2FS_I(inode)->i_size_lock); |
cfb9a34d | 1017 | inode->i_mtime = inode->i_ctime = current_time(inode); |
a0d00fad | 1018 | F2FS_I(inode)->last_disk_size = i_size_read(inode); |
c10c9820 | 1019 | spin_unlock(&F2FS_I(inode)->i_size_lock); |
fbfa2cc5 JK |
1020 | } |
1021 | ||
c1632a0f | 1022 | __setattr_copy(idmap, inode, attr); |
fbfa2cc5 JK |
1023 | |
1024 | if (attr->ia_valid & ATTR_MODE) { | |
13e83a49 | 1025 | err = posix_acl_chmod(idmap, dentry, f2fs_get_inode_mode(inode)); |
17232e83 CY |
1026 | |
1027 | if (is_inode_flag_set(inode, FI_ACL_MODE)) { | |
1028 | if (!err) | |
1029 | inode->i_mode = F2FS_I(inode)->i_acl_mode; | |
91942321 | 1030 | clear_inode_flag(inode, FI_ACL_MODE); |
fbfa2cc5 JK |
1031 | } |
1032 | } | |
1033 | ||
c0ed4405 | 1034 | /* file size may changed here */ |
ca597bdd | 1035 | f2fs_mark_inode_dirty_sync(inode, true); |
15d04354 JK |
1036 | |
1037 | /* inode change will produce dirty node pages flushed by checkpoint */ | |
1038 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
1039 | ||
fbfa2cc5 JK |
1040 | return err; |
1041 | } | |
1042 | ||
1043 | const struct inode_operations f2fs_file_inode_operations = { | |
1044 | .getattr = f2fs_getattr, | |
1045 | .setattr = f2fs_setattr, | |
cac2f8b8 | 1046 | .get_inode_acl = f2fs_get_acl, |
a6dda0e6 | 1047 | .set_acl = f2fs_set_acl, |
fbfa2cc5 | 1048 | .listxattr = f2fs_listxattr, |
9ab70134 | 1049 | .fiemap = f2fs_fiemap, |
9b1bb01c MS |
1050 | .fileattr_get = f2fs_fileattr_get, |
1051 | .fileattr_set = f2fs_fileattr_set, | |
fbfa2cc5 JK |
1052 | }; |
1053 | ||
6394328a | 1054 | static int fill_zero(struct inode *inode, pgoff_t index, |
fbfa2cc5 JK |
1055 | loff_t start, loff_t len) |
1056 | { | |
4081363f | 1057 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
fbfa2cc5 JK |
1058 | struct page *page; |
1059 | ||
1060 | if (!len) | |
6394328a | 1061 | return 0; |
fbfa2cc5 | 1062 | |
2c4db1a6 | 1063 | f2fs_balance_fs(sbi, true); |
bd43df02 | 1064 | |
e479556b | 1065 | f2fs_lock_op(sbi); |
4d57b86d | 1066 | page = f2fs_get_new_data_page(inode, NULL, index, false); |
e479556b | 1067 | f2fs_unlock_op(sbi); |
fbfa2cc5 | 1068 | |
6394328a CY |
1069 | if (IS_ERR(page)) |
1070 | return PTR_ERR(page); | |
1071 | ||
bae0ee7a | 1072 | f2fs_wait_on_page_writeback(page, DATA, true, true); |
6394328a CY |
1073 | zero_user(page, start, len); |
1074 | set_page_dirty(page); | |
1075 | f2fs_put_page(page, 1); | |
1076 | return 0; | |
fbfa2cc5 JK |
1077 | } |
1078 | ||
4d57b86d | 1079 | int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end) |
fbfa2cc5 | 1080 | { |
fbfa2cc5 JK |
1081 | int err; |
1082 | ||
ea58711e | 1083 | while (pg_start < pg_end) { |
fbfa2cc5 | 1084 | struct dnode_of_data dn; |
ea58711e | 1085 | pgoff_t end_offset, count; |
9eaeba70 | 1086 | |
fbfa2cc5 | 1087 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1088 | err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE); |
fbfa2cc5 | 1089 | if (err) { |
ea58711e | 1090 | if (err == -ENOENT) { |
4d57b86d CY |
1091 | pg_start = f2fs_get_next_page_offset(&dn, |
1092 | pg_start); | |
fbfa2cc5 | 1093 | continue; |
ea58711e | 1094 | } |
fbfa2cc5 JK |
1095 | return err; |
1096 | } | |
1097 | ||
81ca7350 | 1098 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
ea58711e CY |
1099 | count = min(end_offset - dn.ofs_in_node, pg_end - pg_start); |
1100 | ||
1101 | f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset); | |
1102 | ||
4d57b86d | 1103 | f2fs_truncate_data_blocks_range(&dn, count); |
fbfa2cc5 | 1104 | f2fs_put_dnode(&dn); |
ea58711e CY |
1105 | |
1106 | pg_start += count; | |
fbfa2cc5 JK |
1107 | } |
1108 | return 0; | |
1109 | } | |
1110 | ||
1cd75654 | 1111 | static int f2fs_punch_hole(struct inode *inode, loff_t offset, loff_t len) |
fbfa2cc5 JK |
1112 | { |
1113 | pgoff_t pg_start, pg_end; | |
1114 | loff_t off_start, off_end; | |
b9d777b8 | 1115 | int ret; |
fbfa2cc5 | 1116 | |
b9d777b8 JK |
1117 | ret = f2fs_convert_inline_inode(inode); |
1118 | if (ret) | |
1119 | return ret; | |
9ffe0fb5 | 1120 | |
09cbfeaf KS |
1121 | pg_start = ((unsigned long long) offset) >> PAGE_SHIFT; |
1122 | pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT; | |
fbfa2cc5 | 1123 | |
09cbfeaf KS |
1124 | off_start = offset & (PAGE_SIZE - 1); |
1125 | off_end = (offset + len) & (PAGE_SIZE - 1); | |
fbfa2cc5 JK |
1126 | |
1127 | if (pg_start == pg_end) { | |
6394328a | 1128 | ret = fill_zero(inode, pg_start, off_start, |
fbfa2cc5 | 1129 | off_end - off_start); |
6394328a CY |
1130 | if (ret) |
1131 | return ret; | |
fbfa2cc5 | 1132 | } else { |
6394328a CY |
1133 | if (off_start) { |
1134 | ret = fill_zero(inode, pg_start++, off_start, | |
09cbfeaf | 1135 | PAGE_SIZE - off_start); |
6394328a CY |
1136 | if (ret) |
1137 | return ret; | |
1138 | } | |
1139 | if (off_end) { | |
1140 | ret = fill_zero(inode, pg_end, 0, off_end); | |
1141 | if (ret) | |
1142 | return ret; | |
1143 | } | |
fbfa2cc5 JK |
1144 | |
1145 | if (pg_start < pg_end) { | |
fbfa2cc5 | 1146 | loff_t blk_start, blk_end; |
4081363f | 1147 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1127a3d4 | 1148 | |
2c4db1a6 | 1149 | f2fs_balance_fs(sbi, true); |
fbfa2cc5 | 1150 | |
09cbfeaf KS |
1151 | blk_start = (loff_t)pg_start << PAGE_SHIFT; |
1152 | blk_end = (loff_t)pg_end << PAGE_SHIFT; | |
a33c1502 | 1153 | |
e4544b63 | 1154 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
6abaa83c | 1155 | filemap_invalidate_lock(inode->i_mapping); |
a33c1502 | 1156 | |
c8dc3047 | 1157 | truncate_pagecache_range(inode, blk_start, blk_end - 1); |
39936837 | 1158 | |
e479556b | 1159 | f2fs_lock_op(sbi); |
4d57b86d | 1160 | ret = f2fs_truncate_hole(inode, pg_start, pg_end); |
e479556b | 1161 | f2fs_unlock_op(sbi); |
a33c1502 | 1162 | |
6abaa83c | 1163 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 1164 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
fbfa2cc5 JK |
1165 | } |
1166 | } | |
1167 | ||
fbfa2cc5 JK |
1168 | return ret; |
1169 | } | |
1170 | ||
0a2aa8fb JK |
1171 | static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr, |
1172 | int *do_replace, pgoff_t off, pgoff_t len) | |
b4ace337 CY |
1173 | { |
1174 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1175 | struct dnode_of_data dn; | |
0a2aa8fb | 1176 | int ret, done, i; |
ecbaa406 | 1177 | |
0a2aa8fb | 1178 | next_dnode: |
6e2c64ad | 1179 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1180 | ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA); |
6e2c64ad JK |
1181 | if (ret && ret != -ENOENT) { |
1182 | return ret; | |
1183 | } else if (ret == -ENOENT) { | |
0a2aa8fb JK |
1184 | if (dn.max_level == 0) |
1185 | return -ENOENT; | |
4c8ff709 CY |
1186 | done = min((pgoff_t)ADDRS_PER_BLOCK(inode) - |
1187 | dn.ofs_in_node, len); | |
0a2aa8fb JK |
1188 | blkaddr += done; |
1189 | do_replace += done; | |
1190 | goto next; | |
1191 | } | |
1192 | ||
1193 | done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) - | |
1194 | dn.ofs_in_node, len); | |
1195 | for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) { | |
a2ced1ce | 1196 | *blkaddr = f2fs_data_blkaddr(&dn); |
93770ab7 CY |
1197 | |
1198 | if (__is_valid_data_blkaddr(*blkaddr) && | |
1199 | !f2fs_is_valid_blkaddr(sbi, *blkaddr, | |
1200 | DATA_GENERIC_ENHANCE)) { | |
1201 | f2fs_put_dnode(&dn); | |
95fa90c9 | 1202 | f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR); |
10f966bb | 1203 | return -EFSCORRUPTED; |
93770ab7 CY |
1204 | } |
1205 | ||
4d57b86d | 1206 | if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) { |
0a2aa8fb | 1207 | |
b0332a0f | 1208 | if (f2fs_lfs_mode(sbi)) { |
0a2aa8fb | 1209 | f2fs_put_dnode(&dn); |
fd114ab2 | 1210 | return -EOPNOTSUPP; |
0a2aa8fb JK |
1211 | } |
1212 | ||
6e2c64ad | 1213 | /* do not invalidate this block address */ |
f28b3434 | 1214 | f2fs_update_data_blkaddr(&dn, NULL_ADDR); |
0a2aa8fb | 1215 | *do_replace = 1; |
b4ace337 | 1216 | } |
6e2c64ad | 1217 | } |
0a2aa8fb JK |
1218 | f2fs_put_dnode(&dn); |
1219 | next: | |
1220 | len -= done; | |
1221 | off += done; | |
1222 | if (len) | |
1223 | goto next_dnode; | |
1224 | return 0; | |
1225 | } | |
b4ace337 | 1226 | |
0a2aa8fb JK |
1227 | static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr, |
1228 | int *do_replace, pgoff_t off, int len) | |
1229 | { | |
1230 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1231 | struct dnode_of_data dn; | |
1232 | int ret, i; | |
b4ace337 | 1233 | |
0a2aa8fb JK |
1234 | for (i = 0; i < len; i++, do_replace++, blkaddr++) { |
1235 | if (*do_replace == 0) | |
1236 | continue; | |
b4ace337 | 1237 | |
0a2aa8fb | 1238 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1239 | ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA); |
0a2aa8fb JK |
1240 | if (ret) { |
1241 | dec_valid_block_count(sbi, inode, 1); | |
4d57b86d | 1242 | f2fs_invalidate_blocks(sbi, *blkaddr); |
0a2aa8fb JK |
1243 | } else { |
1244 | f2fs_update_data_blkaddr(&dn, *blkaddr); | |
36abef4e | 1245 | } |
0a2aa8fb JK |
1246 | f2fs_put_dnode(&dn); |
1247 | } | |
1248 | return 0; | |
1249 | } | |
1250 | ||
1251 | static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode, | |
1252 | block_t *blkaddr, int *do_replace, | |
1253 | pgoff_t src, pgoff_t dst, pgoff_t len, bool full) | |
1254 | { | |
1255 | struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode); | |
1256 | pgoff_t i = 0; | |
1257 | int ret; | |
36abef4e | 1258 | |
0a2aa8fb JK |
1259 | while (i < len) { |
1260 | if (blkaddr[i] == NULL_ADDR && !full) { | |
1261 | i++; | |
1262 | continue; | |
6e2c64ad | 1263 | } |
b4ace337 | 1264 | |
0a2aa8fb JK |
1265 | if (do_replace[i] || blkaddr[i] == NULL_ADDR) { |
1266 | struct dnode_of_data dn; | |
1267 | struct node_info ni; | |
1268 | size_t new_size; | |
1269 | pgoff_t ilen; | |
b4ace337 | 1270 | |
0a2aa8fb | 1271 | set_new_dnode(&dn, dst_inode, NULL, NULL, 0); |
4d57b86d | 1272 | ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE); |
0a2aa8fb JK |
1273 | if (ret) |
1274 | return ret; | |
b4ace337 | 1275 | |
a9419b63 | 1276 | ret = f2fs_get_node_info(sbi, dn.nid, &ni, false); |
7735730d CY |
1277 | if (ret) { |
1278 | f2fs_put_dnode(&dn); | |
1279 | return ret; | |
1280 | } | |
1281 | ||
0a2aa8fb JK |
1282 | ilen = min((pgoff_t) |
1283 | ADDRS_PER_PAGE(dn.node_page, dst_inode) - | |
1284 | dn.ofs_in_node, len - i); | |
1285 | do { | |
a2ced1ce | 1286 | dn.data_blkaddr = f2fs_data_blkaddr(&dn); |
4d57b86d | 1287 | f2fs_truncate_data_blocks_range(&dn, 1); |
0a2aa8fb JK |
1288 | |
1289 | if (do_replace[i]) { | |
1290 | f2fs_i_blocks_write(src_inode, | |
0abd675e | 1291 | 1, false, false); |
0a2aa8fb | 1292 | f2fs_i_blocks_write(dst_inode, |
0abd675e | 1293 | 1, true, false); |
0a2aa8fb JK |
1294 | f2fs_replace_block(sbi, &dn, dn.data_blkaddr, |
1295 | blkaddr[i], ni.version, true, false); | |
1296 | ||
1297 | do_replace[i] = 0; | |
1298 | } | |
1299 | dn.ofs_in_node++; | |
1300 | i++; | |
1f0d5c91 | 1301 | new_size = (loff_t)(dst + i) << PAGE_SHIFT; |
0a2aa8fb JK |
1302 | if (dst_inode->i_size < new_size) |
1303 | f2fs_i_size_write(dst_inode, new_size); | |
e87f7329 | 1304 | } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR)); |
6e2c64ad | 1305 | |
0a2aa8fb JK |
1306 | f2fs_put_dnode(&dn); |
1307 | } else { | |
1308 | struct page *psrc, *pdst; | |
1309 | ||
4d57b86d CY |
1310 | psrc = f2fs_get_lock_data_page(src_inode, |
1311 | src + i, true); | |
0a2aa8fb JK |
1312 | if (IS_ERR(psrc)) |
1313 | return PTR_ERR(psrc); | |
4d57b86d | 1314 | pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i, |
0a2aa8fb JK |
1315 | true); |
1316 | if (IS_ERR(pdst)) { | |
1317 | f2fs_put_page(psrc, 1); | |
1318 | return PTR_ERR(pdst); | |
1319 | } | |
1dd55358 | 1320 | memcpy_page(pdst, 0, psrc, 0, PAGE_SIZE); |
0a2aa8fb JK |
1321 | set_page_dirty(pdst); |
1322 | f2fs_put_page(pdst, 1); | |
6e2c64ad | 1323 | f2fs_put_page(psrc, 1); |
b4ace337 | 1324 | |
4d57b86d CY |
1325 | ret = f2fs_truncate_hole(src_inode, |
1326 | src + i, src + i + 1); | |
0a2aa8fb JK |
1327 | if (ret) |
1328 | return ret; | |
1329 | i++; | |
1330 | } | |
6e2c64ad JK |
1331 | } |
1332 | return 0; | |
0a2aa8fb | 1333 | } |
b4ace337 | 1334 | |
0a2aa8fb JK |
1335 | static int __exchange_data_block(struct inode *src_inode, |
1336 | struct inode *dst_inode, pgoff_t src, pgoff_t dst, | |
363cad7f | 1337 | pgoff_t len, bool full) |
0a2aa8fb JK |
1338 | { |
1339 | block_t *src_blkaddr; | |
1340 | int *do_replace; | |
363cad7f | 1341 | pgoff_t olen; |
0a2aa8fb JK |
1342 | int ret; |
1343 | ||
363cad7f | 1344 | while (len) { |
d02a6e61 | 1345 | olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len); |
0a2aa8fb | 1346 | |
628b3d14 | 1347 | src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode), |
9d2a789c | 1348 | array_size(olen, sizeof(block_t)), |
4f4460c0 | 1349 | GFP_NOFS); |
363cad7f JK |
1350 | if (!src_blkaddr) |
1351 | return -ENOMEM; | |
0a2aa8fb | 1352 | |
628b3d14 | 1353 | do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode), |
9d2a789c | 1354 | array_size(olen, sizeof(int)), |
4f4460c0 | 1355 | GFP_NOFS); |
363cad7f JK |
1356 | if (!do_replace) { |
1357 | kvfree(src_blkaddr); | |
1358 | return -ENOMEM; | |
1359 | } | |
0a2aa8fb | 1360 | |
363cad7f JK |
1361 | ret = __read_out_blkaddrs(src_inode, src_blkaddr, |
1362 | do_replace, src, olen); | |
1363 | if (ret) | |
1364 | goto roll_back; | |
0a2aa8fb | 1365 | |
363cad7f JK |
1366 | ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr, |
1367 | do_replace, src, dst, olen, full); | |
1368 | if (ret) | |
1369 | goto roll_back; | |
1370 | ||
1371 | src += olen; | |
1372 | dst += olen; | |
1373 | len -= olen; | |
1374 | ||
1375 | kvfree(src_blkaddr); | |
1376 | kvfree(do_replace); | |
1377 | } | |
0a2aa8fb JK |
1378 | return 0; |
1379 | ||
1380 | roll_back: | |
9fd62605 | 1381 | __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen); |
0a2aa8fb JK |
1382 | kvfree(src_blkaddr); |
1383 | kvfree(do_replace); | |
6e2c64ad JK |
1384 | return ret; |
1385 | } | |
b4ace337 | 1386 | |
6f8d4455 | 1387 | static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len) |
6e2c64ad JK |
1388 | { |
1389 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
f91108b8 | 1390 | pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); |
6f8d4455 JK |
1391 | pgoff_t start = offset >> PAGE_SHIFT; |
1392 | pgoff_t end = (offset + len) >> PAGE_SHIFT; | |
0a2aa8fb | 1393 | int ret; |
6e2c64ad | 1394 | |
0a2aa8fb | 1395 | f2fs_balance_fs(sbi, true); |
5f281fab | 1396 | |
6f8d4455 | 1397 | /* avoid gc operation during block exchange */ |
e4544b63 | 1398 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1399 | filemap_invalidate_lock(inode->i_mapping); |
5f281fab | 1400 | |
6f8d4455 JK |
1401 | f2fs_lock_op(sbi); |
1402 | f2fs_drop_extent_tree(inode); | |
1403 | truncate_pagecache(inode, offset); | |
0a2aa8fb JK |
1404 | ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true); |
1405 | f2fs_unlock_op(sbi); | |
6f8d4455 | 1406 | |
edc6d01b | 1407 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 1408 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
b4ace337 CY |
1409 | return ret; |
1410 | } | |
1411 | ||
1412 | static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len) | |
1413 | { | |
b4ace337 CY |
1414 | loff_t new_size; |
1415 | int ret; | |
1416 | ||
b4ace337 CY |
1417 | if (offset + len >= i_size_read(inode)) |
1418 | return -EINVAL; | |
1419 | ||
1420 | /* collapse range should be aligned to block size of f2fs. */ | |
1421 | if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1)) | |
1422 | return -EINVAL; | |
1423 | ||
b9d777b8 JK |
1424 | ret = f2fs_convert_inline_inode(inode); |
1425 | if (ret) | |
1426 | return ret; | |
97a7b2c2 | 1427 | |
b4ace337 CY |
1428 | /* write out all dirty pages from offset */ |
1429 | ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); | |
1430 | if (ret) | |
6f8d4455 | 1431 | return ret; |
b4ace337 | 1432 | |
6f8d4455 | 1433 | ret = f2fs_do_collapse(inode, offset, len); |
b4ace337 | 1434 | if (ret) |
6f8d4455 | 1435 | return ret; |
b4ace337 | 1436 | |
6e2c64ad | 1437 | /* write out all moved pages, if possible */ |
edc6d01b | 1438 | filemap_invalidate_lock(inode->i_mapping); |
6e2c64ad JK |
1439 | filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX); |
1440 | truncate_pagecache(inode, offset); | |
1441 | ||
b4ace337 | 1442 | new_size = i_size_read(inode) - len; |
c42d28ce | 1443 | ret = f2fs_truncate_blocks(inode, new_size, true); |
edc6d01b | 1444 | filemap_invalidate_unlock(inode->i_mapping); |
b4ace337 | 1445 | if (!ret) |
fc9581c8 | 1446 | f2fs_i_size_write(inode, new_size); |
b4ace337 CY |
1447 | return ret; |
1448 | } | |
1449 | ||
6e961949 CY |
1450 | static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start, |
1451 | pgoff_t end) | |
1452 | { | |
1453 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
1454 | pgoff_t index = start; | |
1455 | unsigned int ofs_in_node = dn->ofs_in_node; | |
1456 | blkcnt_t count = 0; | |
1457 | int ret; | |
1458 | ||
1459 | for (; index < end; index++, dn->ofs_in_node++) { | |
a2ced1ce | 1460 | if (f2fs_data_blkaddr(dn) == NULL_ADDR) |
6e961949 CY |
1461 | count++; |
1462 | } | |
1463 | ||
1464 | dn->ofs_in_node = ofs_in_node; | |
4d57b86d | 1465 | ret = f2fs_reserve_new_blocks(dn, count); |
6e961949 CY |
1466 | if (ret) |
1467 | return ret; | |
1468 | ||
1469 | dn->ofs_in_node = ofs_in_node; | |
1470 | for (index = start; index < end; index++, dn->ofs_in_node++) { | |
a2ced1ce | 1471 | dn->data_blkaddr = f2fs_data_blkaddr(dn); |
6e961949 | 1472 | /* |
4d57b86d | 1473 | * f2fs_reserve_new_blocks will not guarantee entire block |
6e961949 CY |
1474 | * allocation. |
1475 | */ | |
1476 | if (dn->data_blkaddr == NULL_ADDR) { | |
1477 | ret = -ENOSPC; | |
1478 | break; | |
1479 | } | |
25f82362 CY |
1480 | |
1481 | if (dn->data_blkaddr == NEW_ADDR) | |
1482 | continue; | |
1483 | ||
1484 | if (!f2fs_is_valid_blkaddr(sbi, dn->data_blkaddr, | |
1485 | DATA_GENERIC_ENHANCE)) { | |
1486 | ret = -EFSCORRUPTED; | |
95fa90c9 | 1487 | f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR); |
25f82362 | 1488 | break; |
6e961949 | 1489 | } |
25f82362 CY |
1490 | |
1491 | f2fs_invalidate_blocks(sbi, dn->data_blkaddr); | |
1492 | dn->data_blkaddr = NEW_ADDR; | |
1493 | f2fs_set_data_blkaddr(dn); | |
6e961949 CY |
1494 | } |
1495 | ||
e7547dac | 1496 | f2fs_update_read_extent_cache_range(dn, start, 0, index - start); |
a84153f9 | 1497 | f2fs_update_age_extent_cache_range(dn, start, index - start); |
6e961949 CY |
1498 | |
1499 | return ret; | |
1500 | } | |
1501 | ||
75cd4e09 CY |
1502 | static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len, |
1503 | int mode) | |
1504 | { | |
1505 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1506 | struct address_space *mapping = inode->i_mapping; | |
1507 | pgoff_t index, pg_start, pg_end; | |
1508 | loff_t new_size = i_size_read(inode); | |
1509 | loff_t off_start, off_end; | |
1510 | int ret = 0; | |
1511 | ||
75cd4e09 CY |
1512 | ret = inode_newsize_ok(inode, (len + offset)); |
1513 | if (ret) | |
1514 | return ret; | |
1515 | ||
b9d777b8 JK |
1516 | ret = f2fs_convert_inline_inode(inode); |
1517 | if (ret) | |
1518 | return ret; | |
75cd4e09 CY |
1519 | |
1520 | ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1); | |
1521 | if (ret) | |
6f8d4455 | 1522 | return ret; |
75cd4e09 | 1523 | |
09cbfeaf KS |
1524 | pg_start = ((unsigned long long) offset) >> PAGE_SHIFT; |
1525 | pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT; | |
75cd4e09 | 1526 | |
09cbfeaf KS |
1527 | off_start = offset & (PAGE_SIZE - 1); |
1528 | off_end = (offset + len) & (PAGE_SIZE - 1); | |
75cd4e09 CY |
1529 | |
1530 | if (pg_start == pg_end) { | |
6394328a CY |
1531 | ret = fill_zero(inode, pg_start, off_start, |
1532 | off_end - off_start); | |
1533 | if (ret) | |
6f8d4455 | 1534 | return ret; |
6394328a | 1535 | |
75cd4e09 CY |
1536 | new_size = max_t(loff_t, new_size, offset + len); |
1537 | } else { | |
1538 | if (off_start) { | |
6394328a | 1539 | ret = fill_zero(inode, pg_start++, off_start, |
09cbfeaf | 1540 | PAGE_SIZE - off_start); |
6394328a | 1541 | if (ret) |
6f8d4455 | 1542 | return ret; |
6394328a | 1543 | |
75cd4e09 | 1544 | new_size = max_t(loff_t, new_size, |
09cbfeaf | 1545 | (loff_t)pg_start << PAGE_SHIFT); |
75cd4e09 CY |
1546 | } |
1547 | ||
6e961949 | 1548 | for (index = pg_start; index < pg_end;) { |
75cd4e09 | 1549 | struct dnode_of_data dn; |
6e961949 CY |
1550 | unsigned int end_offset; |
1551 | pgoff_t end; | |
75cd4e09 | 1552 | |
e4544b63 | 1553 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1554 | filemap_invalidate_lock(mapping); |
c7079853 CY |
1555 | |
1556 | truncate_pagecache_range(inode, | |
1557 | (loff_t)index << PAGE_SHIFT, | |
1558 | ((loff_t)pg_end << PAGE_SHIFT) - 1); | |
1559 | ||
75cd4e09 CY |
1560 | f2fs_lock_op(sbi); |
1561 | ||
6e961949 | 1562 | set_new_dnode(&dn, inode, NULL, NULL, 0); |
4d57b86d | 1563 | ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE); |
75cd4e09 CY |
1564 | if (ret) { |
1565 | f2fs_unlock_op(sbi); | |
edc6d01b | 1566 | filemap_invalidate_unlock(mapping); |
e4544b63 | 1567 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
75cd4e09 CY |
1568 | goto out; |
1569 | } | |
1570 | ||
6e961949 CY |
1571 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); |
1572 | end = min(pg_end, end_offset - dn.ofs_in_node + index); | |
1573 | ||
1574 | ret = f2fs_do_zero_range(&dn, index, end); | |
75cd4e09 | 1575 | f2fs_put_dnode(&dn); |
c7079853 | 1576 | |
75cd4e09 | 1577 | f2fs_unlock_op(sbi); |
edc6d01b | 1578 | filemap_invalidate_unlock(mapping); |
e4544b63 | 1579 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
9434fcde CY |
1580 | |
1581 | f2fs_balance_fs(sbi, dn.node_changed); | |
1582 | ||
6e961949 CY |
1583 | if (ret) |
1584 | goto out; | |
75cd4e09 | 1585 | |
6e961949 | 1586 | index = end; |
75cd4e09 | 1587 | new_size = max_t(loff_t, new_size, |
6e961949 | 1588 | (loff_t)index << PAGE_SHIFT); |
75cd4e09 CY |
1589 | } |
1590 | ||
1591 | if (off_end) { | |
6394328a CY |
1592 | ret = fill_zero(inode, pg_end, 0, off_end); |
1593 | if (ret) | |
1594 | goto out; | |
1595 | ||
75cd4e09 CY |
1596 | new_size = max_t(loff_t, new_size, offset + len); |
1597 | } | |
1598 | } | |
1599 | ||
1600 | out: | |
17cd07ae CY |
1601 | if (new_size > i_size_read(inode)) { |
1602 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1603 | file_set_keep_isize(inode); | |
1604 | else | |
1605 | f2fs_i_size_write(inode, new_size); | |
1606 | } | |
75cd4e09 CY |
1607 | return ret; |
1608 | } | |
1609 | ||
f62185d0 CY |
1610 | static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len) |
1611 | { | |
1612 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
edc6d01b | 1613 | struct address_space *mapping = inode->i_mapping; |
0a2aa8fb | 1614 | pgoff_t nr, pg_start, pg_end, delta, idx; |
f62185d0 | 1615 | loff_t new_size; |
6e2c64ad | 1616 | int ret = 0; |
f62185d0 | 1617 | |
f62185d0 | 1618 | new_size = i_size_read(inode) + len; |
46e82fb1 KM |
1619 | ret = inode_newsize_ok(inode, new_size); |
1620 | if (ret) | |
1621 | return ret; | |
f62185d0 CY |
1622 | |
1623 | if (offset >= i_size_read(inode)) | |
1624 | return -EINVAL; | |
1625 | ||
1626 | /* insert range should be aligned to block size of f2fs. */ | |
1627 | if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1)) | |
1628 | return -EINVAL; | |
1629 | ||
b9d777b8 JK |
1630 | ret = f2fs_convert_inline_inode(inode); |
1631 | if (ret) | |
1632 | return ret; | |
97a7b2c2 | 1633 | |
2c4db1a6 | 1634 | f2fs_balance_fs(sbi, true); |
2a340760 | 1635 | |
edc6d01b | 1636 | filemap_invalidate_lock(mapping); |
c42d28ce | 1637 | ret = f2fs_truncate_blocks(inode, i_size_read(inode), true); |
edc6d01b | 1638 | filemap_invalidate_unlock(mapping); |
f62185d0 | 1639 | if (ret) |
6f8d4455 | 1640 | return ret; |
f62185d0 CY |
1641 | |
1642 | /* write out all dirty pages from offset */ | |
edc6d01b | 1643 | ret = filemap_write_and_wait_range(mapping, offset, LLONG_MAX); |
f62185d0 | 1644 | if (ret) |
6f8d4455 | 1645 | return ret; |
f62185d0 | 1646 | |
09cbfeaf KS |
1647 | pg_start = offset >> PAGE_SHIFT; |
1648 | pg_end = (offset + len) >> PAGE_SHIFT; | |
f62185d0 | 1649 | delta = pg_end - pg_start; |
f91108b8 | 1650 | idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); |
0a2aa8fb | 1651 | |
6f8d4455 | 1652 | /* avoid gc operation during block exchange */ |
e4544b63 | 1653 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 1654 | filemap_invalidate_lock(mapping); |
6f8d4455 JK |
1655 | truncate_pagecache(inode, offset); |
1656 | ||
0a2aa8fb JK |
1657 | while (!ret && idx > pg_start) { |
1658 | nr = idx - pg_start; | |
1659 | if (nr > delta) | |
1660 | nr = delta; | |
1661 | idx -= nr; | |
f62185d0 | 1662 | |
f62185d0 | 1663 | f2fs_lock_op(sbi); |
5f281fab JK |
1664 | f2fs_drop_extent_tree(inode); |
1665 | ||
0a2aa8fb JK |
1666 | ret = __exchange_data_block(inode, inode, idx, |
1667 | idx + delta, nr, false); | |
f62185d0 CY |
1668 | f2fs_unlock_op(sbi); |
1669 | } | |
edc6d01b | 1670 | filemap_invalidate_unlock(mapping); |
e4544b63 | 1671 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
f62185d0 | 1672 | |
6e2c64ad | 1673 | /* write out all moved pages, if possible */ |
edc6d01b JK |
1674 | filemap_invalidate_lock(mapping); |
1675 | filemap_write_and_wait_range(mapping, offset, LLONG_MAX); | |
6e2c64ad | 1676 | truncate_pagecache(inode, offset); |
edc6d01b | 1677 | filemap_invalidate_unlock(mapping); |
6e2c64ad JK |
1678 | |
1679 | if (!ret) | |
fc9581c8 | 1680 | f2fs_i_size_write(inode, new_size); |
f62185d0 CY |
1681 | return ret; |
1682 | } | |
1683 | ||
1cd75654 | 1684 | static int f2fs_expand_inode_data(struct inode *inode, loff_t offset, |
fbfa2cc5 JK |
1685 | loff_t len, int mode) |
1686 | { | |
4081363f | 1687 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
d5097be5 | 1688 | struct f2fs_map_blocks map = { .m_next_pgofs = NULL, |
f9d6d059 CY |
1689 | .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE, |
1690 | .m_may_create = true }; | |
d147ea4a JK |
1691 | struct f2fs_gc_control gc_control = { .victim_segno = NULL_SEGNO, |
1692 | .init_gc_type = FG_GC, | |
1693 | .should_migrate_blocks = false, | |
c81d5bae JK |
1694 | .err_gc_skipped = true, |
1695 | .nr_free_secs = 0 }; | |
88f2cfc5 | 1696 | pgoff_t pg_start, pg_end; |
39bee2e6 | 1697 | loff_t new_size; |
e12dd7bd | 1698 | loff_t off_end; |
88f2cfc5 | 1699 | block_t expanded = 0; |
a7de6086 | 1700 | int err; |
fbfa2cc5 | 1701 | |
a7de6086 JK |
1702 | err = inode_newsize_ok(inode, (len + offset)); |
1703 | if (err) | |
1704 | return err; | |
fbfa2cc5 | 1705 | |
a7de6086 JK |
1706 | err = f2fs_convert_inline_inode(inode); |
1707 | if (err) | |
1708 | return err; | |
9e09fc85 | 1709 | |
2c4db1a6 | 1710 | f2fs_balance_fs(sbi, true); |
2a340760 | 1711 | |
88f2cfc5 | 1712 | pg_start = ((unsigned long long)offset) >> PAGE_SHIFT; |
e12dd7bd | 1713 | pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT; |
09cbfeaf | 1714 | off_end = (offset + len) & (PAGE_SIZE - 1); |
fbfa2cc5 | 1715 | |
88f2cfc5 CY |
1716 | map.m_lblk = pg_start; |
1717 | map.m_len = pg_end - pg_start; | |
e12dd7bd JK |
1718 | if (off_end) |
1719 | map.m_len++; | |
ead43275 | 1720 | |
f5a53edc JK |
1721 | if (!map.m_len) |
1722 | return 0; | |
1723 | ||
1724 | if (f2fs_is_pinned_file(inode)) { | |
074b5ea2 | 1725 | block_t sec_blks = CAP_BLKS_PER_SEC(sbi); |
e1175f02 | 1726 | block_t sec_len = roundup(map.m_len, sec_blks); |
f5a53edc | 1727 | |
e1175f02 | 1728 | map.m_len = sec_blks; |
f5a53edc JK |
1729 | next_alloc: |
1730 | if (has_not_enough_free_secs(sbi, 0, | |
1731 | GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) { | |
e4544b63 | 1732 | f2fs_down_write(&sbi->gc_lock); |
d147ea4a | 1733 | err = f2fs_gc(sbi, &gc_control); |
2e42b7f8 | 1734 | if (err && err != -ENODATA) |
f5a53edc JK |
1735 | goto out_err; |
1736 | } | |
1737 | ||
e4544b63 | 1738 | f2fs_down_write(&sbi->pin_sem); |
fd612648 DJ |
1739 | |
1740 | f2fs_lock_op(sbi); | |
509f1010 | 1741 | f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false); |
fd612648 DJ |
1742 | f2fs_unlock_op(sbi); |
1743 | ||
d0b9e42a | 1744 | map.m_seg_type = CURSEG_COLD_DATA_PINNED; |
cd8fc522 | 1745 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRE_DIO); |
d4dd19ec | 1746 | file_dont_truncate(inode); |
d0b9e42a | 1747 | |
e4544b63 | 1748 | f2fs_up_write(&sbi->pin_sem); |
cad3836f | 1749 | |
88f2cfc5 | 1750 | expanded += map.m_len; |
e1175f02 | 1751 | sec_len -= map.m_len; |
f5a53edc | 1752 | map.m_lblk += map.m_len; |
e1175f02 | 1753 | if (!err && sec_len) |
f5a53edc JK |
1754 | goto next_alloc; |
1755 | ||
88f2cfc5 | 1756 | map.m_len = expanded; |
f5a53edc | 1757 | } else { |
cd8fc522 | 1758 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRE_AIO); |
88f2cfc5 | 1759 | expanded = map.m_len; |
f5a53edc JK |
1760 | } |
1761 | out_err: | |
a7de6086 | 1762 | if (err) { |
e12dd7bd | 1763 | pgoff_t last_off; |
fbfa2cc5 | 1764 | |
88f2cfc5 | 1765 | if (!expanded) |
a7de6086 | 1766 | return err; |
98397ff3 | 1767 | |
88f2cfc5 | 1768 | last_off = pg_start + expanded - 1; |
e12dd7bd JK |
1769 | |
1770 | /* update new size to the failed position */ | |
1061fd48 | 1771 | new_size = (last_off == pg_end) ? offset + len : |
e12dd7bd JK |
1772 | (loff_t)(last_off + 1) << PAGE_SHIFT; |
1773 | } else { | |
1774 | new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end; | |
fbfa2cc5 JK |
1775 | } |
1776 | ||
e8ed90a6 CY |
1777 | if (new_size > i_size_read(inode)) { |
1778 | if (mode & FALLOC_FL_KEEP_SIZE) | |
1779 | file_set_keep_isize(inode); | |
1780 | else | |
1781 | f2fs_i_size_write(inode, new_size); | |
1782 | } | |
fbfa2cc5 | 1783 | |
a7de6086 | 1784 | return err; |
fbfa2cc5 JK |
1785 | } |
1786 | ||
1787 | static long f2fs_fallocate(struct file *file, int mode, | |
1788 | loff_t offset, loff_t len) | |
1789 | { | |
6131ffaa | 1790 | struct inode *inode = file_inode(file); |
587c0a42 | 1791 | long ret = 0; |
fbfa2cc5 | 1792 | |
1f227a3e JK |
1793 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
1794 | return -EIO; | |
00e09c0b CY |
1795 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode))) |
1796 | return -ENOSPC; | |
4c8ff709 CY |
1797 | if (!f2fs_is_compress_backend_ready(inode)) |
1798 | return -EOPNOTSUPP; | |
1f227a3e | 1799 | |
c998012b CY |
1800 | /* f2fs only support ->fallocate for regular file */ |
1801 | if (!S_ISREG(inode->i_mode)) | |
1802 | return -EINVAL; | |
1803 | ||
62230e0d | 1804 | if (IS_ENCRYPTED(inode) && |
f62185d0 | 1805 | (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE))) |
fcc85a4d JK |
1806 | return -EOPNOTSUPP; |
1807 | ||
5fed0be8 | 1808 | /* |
146949de | 1809 | * Pinned file should not support partial truncation since the block |
5fed0be8 JK |
1810 | * can be used by applications. |
1811 | */ | |
1812 | if ((f2fs_compressed_file(inode) || f2fs_is_pinned_file(inode)) && | |
4c8ff709 CY |
1813 | (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE | |
1814 | FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE))) | |
1815 | return -EOPNOTSUPP; | |
1816 | ||
b4ace337 | 1817 | if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | |
f62185d0 CY |
1818 | FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | |
1819 | FALLOC_FL_INSERT_RANGE)) | |
fbfa2cc5 JK |
1820 | return -EOPNOTSUPP; |
1821 | ||
5955102c | 1822 | inode_lock(inode); |
3375f696 | 1823 | |
958ed929 CY |
1824 | ret = file_modified(file); |
1825 | if (ret) | |
1826 | goto out; | |
1827 | ||
587c0a42 TY |
1828 | if (mode & FALLOC_FL_PUNCH_HOLE) { |
1829 | if (offset >= inode->i_size) | |
1830 | goto out; | |
1831 | ||
1cd75654 | 1832 | ret = f2fs_punch_hole(inode, offset, len); |
b4ace337 CY |
1833 | } else if (mode & FALLOC_FL_COLLAPSE_RANGE) { |
1834 | ret = f2fs_collapse_range(inode, offset, len); | |
75cd4e09 CY |
1835 | } else if (mode & FALLOC_FL_ZERO_RANGE) { |
1836 | ret = f2fs_zero_range(inode, offset, len, mode); | |
f62185d0 CY |
1837 | } else if (mode & FALLOC_FL_INSERT_RANGE) { |
1838 | ret = f2fs_insert_range(inode, offset, len); | |
b4ace337 | 1839 | } else { |
1cd75654 | 1840 | ret = f2fs_expand_inode_data(inode, offset, len, mode); |
b4ace337 | 1841 | } |
fbfa2cc5 | 1842 | |
3af60a49 | 1843 | if (!ret) { |
078cd827 | 1844 | inode->i_mtime = inode->i_ctime = current_time(inode); |
7c45729a | 1845 | f2fs_mark_inode_dirty_sync(inode, false); |
d0239e1b | 1846 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
3af60a49 | 1847 | } |
3375f696 | 1848 | |
587c0a42 | 1849 | out: |
5955102c | 1850 | inode_unlock(inode); |
3375f696 | 1851 | |
c01e2853 | 1852 | trace_f2fs_fallocate(inode, mode, offset, len, ret); |
fbfa2cc5 JK |
1853 | return ret; |
1854 | } | |
1855 | ||
1e84371f JK |
1856 | static int f2fs_release_file(struct inode *inode, struct file *filp) |
1857 | { | |
de5307e4 | 1858 | /* |
146949de | 1859 | * f2fs_release_file is called at every close calls. So we should |
de5307e4 JK |
1860 | * not drop any inmemory pages by close called by other process. |
1861 | */ | |
1862 | if (!(filp->f_mode & FMODE_WRITE) || | |
1863 | atomic_read(&inode->i_writecount) != 1) | |
1864 | return 0; | |
1865 | ||
a46bebd5 | 1866 | inode_lock(inode); |
e53f8643 | 1867 | f2fs_abort_atomic_write(inode, true); |
a46bebd5 DJ |
1868 | inode_unlock(inode); |
1869 | ||
1e84371f JK |
1870 | return 0; |
1871 | } | |
1872 | ||
7a10f017 | 1873 | static int f2fs_file_flush(struct file *file, fl_owner_t id) |
fbfa2cc5 | 1874 | { |
7a10f017 JK |
1875 | struct inode *inode = file_inode(file); |
1876 | ||
1877 | /* | |
1878 | * If the process doing a transaction is crashed, we should do | |
1879 | * roll-back. Otherwise, other reader/write can see corrupted database | |
1880 | * until all the writers close its file. Since this should be done | |
1881 | * before dropping file lock, it needs to do in ->flush. | |
1882 | */ | |
ae267fc1 | 1883 | if (F2FS_I(inode)->atomic_write_task == current && |
a46bebd5 DJ |
1884 | (current->flags & PF_EXITING)) { |
1885 | inode_lock(inode); | |
3db1de0e | 1886 | f2fs_abort_atomic_write(inode, true); |
a46bebd5 DJ |
1887 | inode_unlock(inode); |
1888 | } | |
1889 | ||
7a10f017 | 1890 | return 0; |
fbfa2cc5 JK |
1891 | } |
1892 | ||
36098557 | 1893 | static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask) |
2c1d0305 CY |
1894 | { |
1895 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
99eabb91 JK |
1896 | u32 masked_flags = fi->i_flags & mask; |
1897 | ||
a7531039 JK |
1898 | /* mask can be shrunk by flags_valid selector */ |
1899 | iflags &= mask; | |
2c1d0305 CY |
1900 | |
1901 | /* Is it quota file? Do not allow user to mess with it */ | |
1902 | if (IS_NOQUOTA(inode)) | |
1903 | return -EPERM; | |
1904 | ||
99eabb91 | 1905 | if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) { |
2c2eb7a3 DR |
1906 | if (!f2fs_sb_has_casefold(F2FS_I_SB(inode))) |
1907 | return -EOPNOTSUPP; | |
1908 | if (!f2fs_empty_dir(inode)) | |
1909 | return -ENOTEMPTY; | |
1910 | } | |
1911 | ||
4c8ff709 CY |
1912 | if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) { |
1913 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
1914 | return -EOPNOTSUPP; | |
1915 | if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL)) | |
1916 | return -EINVAL; | |
1917 | } | |
1918 | ||
99eabb91 | 1919 | if ((iflags ^ masked_flags) & F2FS_COMPR_FL) { |
aa576970 | 1920 | if (masked_flags & F2FS_COMPR_FL) { |
78134d03 | 1921 | if (!f2fs_disable_compressed_file(inode)) |
2536ac68 | 1922 | return -EINVAL; |
8ee236dc | 1923 | } else { |
a995627e JK |
1924 | /* try to convert inline_data to support compression */ |
1925 | int err = f2fs_convert_inline_inode(inode); | |
1926 | if (err) | |
1927 | return err; | |
4c8ff709 CY |
1928 | if (!f2fs_may_compress(inode)) |
1929 | return -EINVAL; | |
a8634ccf | 1930 | if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode)) |
519a5a2f | 1931 | return -EINVAL; |
912f0d65 JK |
1932 | if (set_compress_context(inode)) |
1933 | return -EOPNOTSUPP; | |
4c8ff709 CY |
1934 | } |
1935 | } | |
4c8ff709 | 1936 | |
d5e5efa2 | 1937 | fi->i_flags = iflags | (fi->i_flags & ~mask); |
4c8ff709 CY |
1938 | f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) && |
1939 | (fi->i_flags & F2FS_NOCOMP_FL)); | |
2c1d0305 | 1940 | |
59c84408 | 1941 | if (fi->i_flags & F2FS_PROJINHERIT_FL) |
2c1d0305 CY |
1942 | set_inode_flag(inode, FI_PROJ_INHERIT); |
1943 | else | |
1944 | clear_inode_flag(inode, FI_PROJ_INHERIT); | |
1945 | ||
1946 | inode->i_ctime = current_time(inode); | |
1947 | f2fs_set_inode_flags(inode); | |
b32e0190 | 1948 | f2fs_mark_inode_dirty_sync(inode, true); |
2c1d0305 CY |
1949 | return 0; |
1950 | } | |
1951 | ||
9b1bb01c | 1952 | /* FS_IOC_[GS]ETFLAGS and FS_IOC_FS[GS]ETXATTR support */ |
36098557 EB |
1953 | |
1954 | /* | |
1955 | * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry | |
1956 | * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to | |
1957 | * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add | |
1958 | * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL. | |
9b1bb01c MS |
1959 | * |
1960 | * Translating flags to fsx_flags value used by FS_IOC_FSGETXATTR and | |
1961 | * FS_IOC_FSSETXATTR is done by the VFS. | |
36098557 EB |
1962 | */ |
1963 | ||
1964 | static const struct { | |
1965 | u32 iflag; | |
1966 | u32 fsflag; | |
1967 | } f2fs_fsflags_map[] = { | |
4c8ff709 | 1968 | { F2FS_COMPR_FL, FS_COMPR_FL }, |
36098557 EB |
1969 | { F2FS_SYNC_FL, FS_SYNC_FL }, |
1970 | { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL }, | |
1971 | { F2FS_APPEND_FL, FS_APPEND_FL }, | |
1972 | { F2FS_NODUMP_FL, FS_NODUMP_FL }, | |
1973 | { F2FS_NOATIME_FL, FS_NOATIME_FL }, | |
4c8ff709 | 1974 | { F2FS_NOCOMP_FL, FS_NOCOMP_FL }, |
36098557 EB |
1975 | { F2FS_INDEX_FL, FS_INDEX_FL }, |
1976 | { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL }, | |
1977 | { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL }, | |
2c2eb7a3 | 1978 | { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL }, |
36098557 EB |
1979 | }; |
1980 | ||
1981 | #define F2FS_GETTABLE_FS_FL ( \ | |
4c8ff709 | 1982 | FS_COMPR_FL | \ |
36098557 EB |
1983 | FS_SYNC_FL | \ |
1984 | FS_IMMUTABLE_FL | \ | |
1985 | FS_APPEND_FL | \ | |
1986 | FS_NODUMP_FL | \ | |
1987 | FS_NOATIME_FL | \ | |
4c8ff709 | 1988 | FS_NOCOMP_FL | \ |
36098557 EB |
1989 | FS_INDEX_FL | \ |
1990 | FS_DIRSYNC_FL | \ | |
1991 | FS_PROJINHERIT_FL | \ | |
1992 | FS_ENCRYPT_FL | \ | |
1993 | FS_INLINE_DATA_FL | \ | |
95ae251f | 1994 | FS_NOCOW_FL | \ |
fbc246a1 | 1995 | FS_VERITY_FL | \ |
2c2eb7a3 | 1996 | FS_CASEFOLD_FL) |
36098557 EB |
1997 | |
1998 | #define F2FS_SETTABLE_FS_FL ( \ | |
4c8ff709 | 1999 | FS_COMPR_FL | \ |
36098557 EB |
2000 | FS_SYNC_FL | \ |
2001 | FS_IMMUTABLE_FL | \ | |
2002 | FS_APPEND_FL | \ | |
2003 | FS_NODUMP_FL | \ | |
2004 | FS_NOATIME_FL | \ | |
4c8ff709 | 2005 | FS_NOCOMP_FL | \ |
36098557 | 2006 | FS_DIRSYNC_FL | \ |
2c2eb7a3 DR |
2007 | FS_PROJINHERIT_FL | \ |
2008 | FS_CASEFOLD_FL) | |
36098557 EB |
2009 | |
2010 | /* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */ | |
2011 | static inline u32 f2fs_iflags_to_fsflags(u32 iflags) | |
2012 | { | |
2013 | u32 fsflags = 0; | |
2014 | int i; | |
2015 | ||
2016 | for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++) | |
2017 | if (iflags & f2fs_fsflags_map[i].iflag) | |
2018 | fsflags |= f2fs_fsflags_map[i].fsflag; | |
2019 | ||
2020 | return fsflags; | |
2021 | } | |
2022 | ||
2023 | /* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */ | |
2024 | static inline u32 f2fs_fsflags_to_iflags(u32 fsflags) | |
2025 | { | |
2026 | u32 iflags = 0; | |
2027 | int i; | |
2028 | ||
2029 | for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++) | |
2030 | if (fsflags & f2fs_fsflags_map[i].fsflag) | |
2031 | iflags |= f2fs_fsflags_map[i].iflag; | |
2032 | ||
2033 | return iflags; | |
2034 | } | |
2035 | ||
d49f3e89 CY |
2036 | static int f2fs_ioc_getversion(struct file *filp, unsigned long arg) |
2037 | { | |
2038 | struct inode *inode = file_inode(filp); | |
2039 | ||
2040 | return put_user(inode->i_generation, (int __user *)arg); | |
2041 | } | |
2042 | ||
41e8f85a | 2043 | static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate) |
88b88a66 JK |
2044 | { |
2045 | struct inode *inode = file_inode(filp); | |
f2d40141 | 2046 | struct mnt_idmap *idmap = file_mnt_idmap(filp); |
743b620c JK |
2047 | struct f2fs_inode_info *fi = F2FS_I(inode); |
2048 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3db1de0e | 2049 | struct inode *pinode; |
4d8d45df | 2050 | loff_t isize; |
f4c9c743 | 2051 | int ret; |
88b88a66 | 2052 | |
01beba79 | 2053 | if (!inode_owner_or_capable(idmap, inode)) |
88b88a66 JK |
2054 | return -EACCES; |
2055 | ||
e811898c JK |
2056 | if (!S_ISREG(inode->i_mode)) |
2057 | return -EINVAL; | |
2058 | ||
038d0698 CY |
2059 | if (filp->f_flags & O_DIRECT) |
2060 | return -EINVAL; | |
2061 | ||
7fb17fe4 CY |
2062 | ret = mnt_want_write_file(filp); |
2063 | if (ret) | |
2064 | return ret; | |
2065 | ||
0fac558b CY |
2066 | inode_lock(inode); |
2067 | ||
9b56adcf FC |
2068 | if (!f2fs_disable_compressed_file(inode)) { |
2069 | ret = -EINVAL; | |
2070 | goto out; | |
2071 | } | |
4c8ff709 | 2072 | |
3db1de0e | 2073 | if (f2fs_is_atomic_file(inode)) |
7fb17fe4 | 2074 | goto out; |
88b88a66 | 2075 | |
f4c9c743 CY |
2076 | ret = f2fs_convert_inline_inode(inode); |
2077 | if (ret) | |
7fb17fe4 | 2078 | goto out; |
88b88a66 | 2079 | |
054cb289 | 2080 | f2fs_down_write(&fi->i_gc_rwsem[WRITE]); |
6f8d4455 | 2081 | |
31867b23 JK |
2082 | /* |
2083 | * Should wait end_io to count F2FS_WB_CP_DATA correctly by | |
2084 | * f2fs_is_atomic_file. | |
2085 | */ | |
2086 | if (get_dirty_pages(inode)) | |
054cb289 | 2087 | f2fs_warn(sbi, "Unexpected flush for atomic writes: ino=%lu, npages=%u", |
dcbb4c10 | 2088 | inode->i_ino, get_dirty_pages(inode)); |
c27753d6 | 2089 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); |
6f8d4455 | 2090 | if (ret) { |
054cb289 | 2091 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); |
684ca7e5 | 2092 | goto out; |
6f8d4455 | 2093 | } |
31867b23 | 2094 | |
a46bebd5 DJ |
2095 | /* Check if the inode already has a COW inode */ |
2096 | if (fi->cow_inode == NULL) { | |
2097 | /* Create a COW inode for atomic write */ | |
2098 | pinode = f2fs_iget(inode->i_sb, fi->i_pino); | |
2099 | if (IS_ERR(pinode)) { | |
2100 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); | |
2101 | ret = PTR_ERR(pinode); | |
2102 | goto out; | |
2103 | } | |
3db1de0e | 2104 | |
10383068 | 2105 | ret = f2fs_get_tmpfile(idmap, pinode, &fi->cow_inode); |
a46bebd5 DJ |
2106 | iput(pinode); |
2107 | if (ret) { | |
2108 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); | |
2109 | goto out; | |
2110 | } | |
2111 | ||
2112 | set_inode_flag(fi->cow_inode, FI_COW_FILE); | |
2113 | clear_inode_flag(fi->cow_inode, FI_INLINE_DATA); | |
2114 | } else { | |
2115 | /* Reuse the already created COW inode */ | |
b851ee6b CY |
2116 | ret = f2fs_do_truncate_blocks(fi->cow_inode, 0, true); |
2117 | if (ret) { | |
2118 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); | |
2119 | goto out; | |
2120 | } | |
6f8d4455 | 2121 | } |
4d8d45df DJ |
2122 | |
2123 | f2fs_write_inode(inode, NULL); | |
31867b23 | 2124 | |
b4dac120 | 2125 | stat_inc_atomic_inode(inode); |
743b620c | 2126 | |
054afda9 | 2127 | set_inode_flag(inode, FI_ATOMIC_FILE); |
41e8f85a DJ |
2128 | |
2129 | isize = i_size_read(inode); | |
2130 | fi->original_i_size = isize; | |
2131 | if (truncate) { | |
2132 | set_inode_flag(inode, FI_ATOMIC_REPLACE); | |
2133 | truncate_inode_pages_final(inode->i_mapping); | |
2134 | f2fs_i_size_write(inode, 0); | |
2135 | isize = 0; | |
2136 | } | |
2137 | f2fs_i_size_write(fi->cow_inode, isize); | |
2138 | ||
054cb289 | 2139 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); |
684ca7e5 | 2140 | |
054cb289 YY |
2141 | f2fs_update_time(sbi, REQ_TIME); |
2142 | fi->atomic_write_task = current; | |
26a28a0c | 2143 | stat_update_max_atomic_write(inode); |
f8e2f32b | 2144 | fi->atomic_write_cnt = 0; |
684ca7e5 | 2145 | out: |
0fac558b | 2146 | inode_unlock(inode); |
7fb17fe4 | 2147 | mnt_drop_write_file(filp); |
c27753d6 | 2148 | return ret; |
88b88a66 JK |
2149 | } |
2150 | ||
2151 | static int f2fs_ioc_commit_atomic_write(struct file *filp) | |
2152 | { | |
2153 | struct inode *inode = file_inode(filp); | |
01beba79 | 2154 | struct mnt_idmap *idmap = file_mnt_idmap(filp); |
88b88a66 JK |
2155 | int ret; |
2156 | ||
01beba79 | 2157 | if (!inode_owner_or_capable(idmap, inode)) |
88b88a66 JK |
2158 | return -EACCES; |
2159 | ||
2160 | ret = mnt_want_write_file(filp); | |
2161 | if (ret) | |
2162 | return ret; | |
2163 | ||
6f8d4455 | 2164 | f2fs_balance_fs(F2FS_I_SB(inode), true); |
0fac558b | 2165 | |
6f8d4455 | 2166 | inode_lock(inode); |
1dc0f899 | 2167 | |
6282adbf | 2168 | if (f2fs_is_atomic_file(inode)) { |
3db1de0e | 2169 | ret = f2fs_commit_atomic_write(inode); |
743b620c | 2170 | if (!ret) |
4d8d45df DJ |
2171 | ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true); |
2172 | ||
2173 | f2fs_abort_atomic_write(inode, ret); | |
26a28a0c | 2174 | } else { |
774e1b78 | 2175 | ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false); |
6282adbf | 2176 | } |
4d8d45df | 2177 | |
0fac558b | 2178 | inode_unlock(inode); |
1e84371f JK |
2179 | mnt_drop_write_file(filp); |
2180 | return ret; | |
2181 | } | |
2182 | ||
23339e57 DJ |
2183 | static int f2fs_ioc_abort_atomic_write(struct file *filp) |
2184 | { | |
2185 | struct inode *inode = file_inode(filp); | |
01beba79 | 2186 | struct mnt_idmap *idmap = file_mnt_idmap(filp); |
23339e57 DJ |
2187 | int ret; |
2188 | ||
01beba79 | 2189 | if (!inode_owner_or_capable(idmap, inode)) |
23339e57 DJ |
2190 | return -EACCES; |
2191 | ||
2192 | ret = mnt_want_write_file(filp); | |
2193 | if (ret) | |
2194 | return ret; | |
2195 | ||
2196 | inode_lock(inode); | |
2197 | ||
e53f8643 | 2198 | f2fs_abort_atomic_write(inode, true); |
23339e57 DJ |
2199 | |
2200 | inode_unlock(inode); | |
2201 | ||
2202 | mnt_drop_write_file(filp); | |
2203 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); | |
2204 | return ret; | |
2205 | } | |
2206 | ||
1abff93d JK |
2207 | static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg) |
2208 | { | |
2209 | struct inode *inode = file_inode(filp); | |
2210 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2211 | struct super_block *sb = sbi->sb; | |
2212 | __u32 in; | |
2a96d8ad | 2213 | int ret = 0; |
1abff93d JK |
2214 | |
2215 | if (!capable(CAP_SYS_ADMIN)) | |
2216 | return -EPERM; | |
2217 | ||
2218 | if (get_user(in, (__u32 __user *)arg)) | |
2219 | return -EFAULT; | |
2220 | ||
60b2b4ee ST |
2221 | if (in != F2FS_GOING_DOWN_FULLSYNC) { |
2222 | ret = mnt_want_write_file(filp); | |
8626441f CY |
2223 | if (ret) { |
2224 | if (ret == -EROFS) { | |
2225 | ret = 0; | |
a9cfee0e CY |
2226 | f2fs_stop_checkpoint(sbi, false, |
2227 | STOP_CP_REASON_SHUTDOWN); | |
8626441f CY |
2228 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
2229 | trace_f2fs_shutdown(sbi, in, ret); | |
2230 | } | |
60b2b4ee | 2231 | return ret; |
8626441f | 2232 | } |
60b2b4ee | 2233 | } |
7fb17fe4 | 2234 | |
1abff93d JK |
2235 | switch (in) { |
2236 | case F2FS_GOING_DOWN_FULLSYNC: | |
040f04bd CH |
2237 | ret = freeze_bdev(sb->s_bdev); |
2238 | if (ret) | |
d027c484 | 2239 | goto out; |
a9cfee0e | 2240 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
040f04bd CH |
2241 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
2242 | thaw_bdev(sb->s_bdev); | |
1abff93d JK |
2243 | break; |
2244 | case F2FS_GOING_DOWN_METASYNC: | |
2245 | /* do checkpoint only */ | |
d027c484 CY |
2246 | ret = f2fs_sync_fs(sb, 1); |
2247 | if (ret) | |
2248 | goto out; | |
a9cfee0e | 2249 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
83a3bfdb | 2250 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
1abff93d JK |
2251 | break; |
2252 | case F2FS_GOING_DOWN_NOSYNC: | |
a9cfee0e | 2253 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
83a3bfdb | 2254 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
1abff93d | 2255 | break; |
c912a829 | 2256 | case F2FS_GOING_DOWN_METAFLUSH: |
4d57b86d | 2257 | f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO); |
a9cfee0e | 2258 | f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN); |
83a3bfdb | 2259 | set_sbi_flag(sbi, SBI_IS_SHUTDOWN); |
c912a829 | 2260 | break; |
0cd6d9b0 JK |
2261 | case F2FS_GOING_DOWN_NEED_FSCK: |
2262 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
db610a64 JK |
2263 | set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); |
2264 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
0cd6d9b0 JK |
2265 | /* do checkpoint only */ |
2266 | ret = f2fs_sync_fs(sb, 1); | |
db610a64 | 2267 | goto out; |
1abff93d | 2268 | default: |
7fb17fe4 CY |
2269 | ret = -EINVAL; |
2270 | goto out; | |
1abff93d | 2271 | } |
7950e9ac | 2272 | |
4d57b86d CY |
2273 | f2fs_stop_gc_thread(sbi); |
2274 | f2fs_stop_discard_thread(sbi); | |
7950e9ac | 2275 | |
4d57b86d | 2276 | f2fs_drop_discard_cmd(sbi); |
7950e9ac CY |
2277 | clear_opt(sbi, DISCARD); |
2278 | ||
d0239e1b | 2279 | f2fs_update_time(sbi, REQ_TIME); |
7fb17fe4 | 2280 | out: |
60b2b4ee ST |
2281 | if (in != F2FS_GOING_DOWN_FULLSYNC) |
2282 | mnt_drop_write_file(filp); | |
559e87c4 CY |
2283 | |
2284 | trace_f2fs_shutdown(sbi, in, ret); | |
2285 | ||
7fb17fe4 | 2286 | return ret; |
1abff93d JK |
2287 | } |
2288 | ||
52656e6c JK |
2289 | static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg) |
2290 | { | |
2291 | struct inode *inode = file_inode(filp); | |
2292 | struct super_block *sb = inode->i_sb; | |
52656e6c JK |
2293 | struct fstrim_range range; |
2294 | int ret; | |
4b2fecc8 | 2295 | |
52656e6c JK |
2296 | if (!capable(CAP_SYS_ADMIN)) |
2297 | return -EPERM; | |
4b2fecc8 | 2298 | |
7d20c8ab | 2299 | if (!f2fs_hw_support_discard(F2FS_SB(sb))) |
52656e6c | 2300 | return -EOPNOTSUPP; |
4b2fecc8 | 2301 | |
52656e6c JK |
2302 | if (copy_from_user(&range, (struct fstrim_range __user *)arg, |
2303 | sizeof(range))) | |
2304 | return -EFAULT; | |
4b2fecc8 | 2305 | |
7fb17fe4 CY |
2306 | ret = mnt_want_write_file(filp); |
2307 | if (ret) | |
2308 | return ret; | |
2309 | ||
52656e6c | 2310 | range.minlen = max((unsigned int)range.minlen, |
7b47ef52 | 2311 | bdev_discard_granularity(sb->s_bdev)); |
52656e6c | 2312 | ret = f2fs_trim_fs(F2FS_SB(sb), &range); |
7fb17fe4 | 2313 | mnt_drop_write_file(filp); |
52656e6c JK |
2314 | if (ret < 0) |
2315 | return ret; | |
4b2fecc8 | 2316 | |
52656e6c JK |
2317 | if (copy_to_user((struct fstrim_range __user *)arg, &range, |
2318 | sizeof(range))) | |
2319 | return -EFAULT; | |
d0239e1b | 2320 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
52656e6c JK |
2321 | return 0; |
2322 | } | |
2323 | ||
f424f664 JK |
2324 | static bool uuid_is_nonzero(__u8 u[16]) |
2325 | { | |
2326 | int i; | |
2327 | ||
2328 | for (i = 0; i < 16; i++) | |
2329 | if (u[i]) | |
2330 | return true; | |
2331 | return false; | |
2332 | } | |
2333 | ||
2334 | static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg) | |
2335 | { | |
f424f664 JK |
2336 | struct inode *inode = file_inode(filp); |
2337 | ||
7beb01f7 | 2338 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode))) |
ead710b7 CY |
2339 | return -EOPNOTSUPP; |
2340 | ||
d0239e1b | 2341 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); |
7fb17fe4 | 2342 | |
db717d8e | 2343 | return fscrypt_ioctl_set_policy(filp, (const void __user *)arg); |
f424f664 JK |
2344 | } |
2345 | ||
2346 | static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg) | |
2347 | { | |
7beb01f7 | 2348 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) |
ead710b7 | 2349 | return -EOPNOTSUPP; |
db717d8e | 2350 | return fscrypt_ioctl_get_policy(filp, (void __user *)arg); |
f424f664 JK |
2351 | } |
2352 | ||
2353 | static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg) | |
2354 | { | |
2355 | struct inode *inode = file_inode(filp); | |
2356 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
5eaac835 | 2357 | u8 encrypt_pw_salt[16]; |
f424f664 JK |
2358 | int err; |
2359 | ||
7beb01f7 | 2360 | if (!f2fs_sb_has_encrypt(sbi)) |
f424f664 JK |
2361 | return -EOPNOTSUPP; |
2362 | ||
f424f664 JK |
2363 | err = mnt_want_write_file(filp); |
2364 | if (err) | |
2365 | return err; | |
2366 | ||
e4544b63 | 2367 | f2fs_down_write(&sbi->sb_lock); |
d0d3f1b3 CY |
2368 | |
2369 | if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt)) | |
2370 | goto got_it; | |
2371 | ||
f424f664 JK |
2372 | /* update superblock with uuid */ |
2373 | generate_random_uuid(sbi->raw_super->encrypt_pw_salt); | |
2374 | ||
c5bda1c8 | 2375 | err = f2fs_commit_super(sbi, false); |
f424f664 JK |
2376 | if (err) { |
2377 | /* undo new data */ | |
2378 | memset(sbi->raw_super->encrypt_pw_salt, 0, 16); | |
d0d3f1b3 | 2379 | goto out_err; |
f424f664 JK |
2380 | } |
2381 | got_it: | |
5eaac835 | 2382 | memcpy(encrypt_pw_salt, sbi->raw_super->encrypt_pw_salt, 16); |
d0d3f1b3 | 2383 | out_err: |
e4544b63 | 2384 | f2fs_up_write(&sbi->sb_lock); |
d0d3f1b3 | 2385 | mnt_drop_write_file(filp); |
5eaac835 CY |
2386 | |
2387 | if (!err && copy_to_user((__u8 __user *)arg, encrypt_pw_salt, 16)) | |
2388 | err = -EFAULT; | |
2389 | ||
d0d3f1b3 | 2390 | return err; |
f424f664 JK |
2391 | } |
2392 | ||
8ce589c7 EB |
2393 | static int f2fs_ioc_get_encryption_policy_ex(struct file *filp, |
2394 | unsigned long arg) | |
2395 | { | |
2396 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2397 | return -EOPNOTSUPP; | |
2398 | ||
2399 | return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg); | |
2400 | } | |
2401 | ||
2402 | static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg) | |
2403 | { | |
2404 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2405 | return -EOPNOTSUPP; | |
2406 | ||
2407 | return fscrypt_ioctl_add_key(filp, (void __user *)arg); | |
2408 | } | |
2409 | ||
2410 | static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg) | |
2411 | { | |
2412 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2413 | return -EOPNOTSUPP; | |
2414 | ||
2415 | return fscrypt_ioctl_remove_key(filp, (void __user *)arg); | |
2416 | } | |
2417 | ||
2418 | static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp, | |
2419 | unsigned long arg) | |
2420 | { | |
2421 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2422 | return -EOPNOTSUPP; | |
2423 | ||
2424 | return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg); | |
2425 | } | |
2426 | ||
2427 | static int f2fs_ioc_get_encryption_key_status(struct file *filp, | |
2428 | unsigned long arg) | |
2429 | { | |
2430 | if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp)))) | |
2431 | return -EOPNOTSUPP; | |
2432 | ||
2433 | return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); | |
2434 | } | |
2435 | ||
ee446e1a EB |
2436 | static int f2fs_ioc_get_encryption_nonce(struct file *filp, 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_nonce(filp, (void __user *)arg); | |
2442 | } | |
2443 | ||
c1c1b583 CY |
2444 | static int f2fs_ioc_gc(struct file *filp, unsigned long arg) |
2445 | { | |
2446 | struct inode *inode = file_inode(filp); | |
2447 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
d147ea4a JK |
2448 | struct f2fs_gc_control gc_control = { .victim_segno = NULL_SEGNO, |
2449 | .no_bg_gc = false, | |
c81d5bae JK |
2450 | .should_migrate_blocks = false, |
2451 | .nr_free_secs = 0 }; | |
d530d4d8 | 2452 | __u32 sync; |
7fb17fe4 | 2453 | int ret; |
c1c1b583 CY |
2454 | |
2455 | if (!capable(CAP_SYS_ADMIN)) | |
2456 | return -EPERM; | |
2457 | ||
d530d4d8 | 2458 | if (get_user(sync, (__u32 __user *)arg)) |
c1c1b583 CY |
2459 | return -EFAULT; |
2460 | ||
d530d4d8 CY |
2461 | if (f2fs_readonly(sbi->sb)) |
2462 | return -EROFS; | |
c1c1b583 | 2463 | |
7fb17fe4 CY |
2464 | ret = mnt_want_write_file(filp); |
2465 | if (ret) | |
2466 | return ret; | |
2467 | ||
d530d4d8 | 2468 | if (!sync) { |
e4544b63 | 2469 | if (!f2fs_down_write_trylock(&sbi->gc_lock)) { |
7fb17fe4 CY |
2470 | ret = -EBUSY; |
2471 | goto out; | |
2472 | } | |
d530d4d8 | 2473 | } else { |
e4544b63 | 2474 | f2fs_down_write(&sbi->gc_lock); |
c1c1b583 CY |
2475 | } |
2476 | ||
d147ea4a JK |
2477 | gc_control.init_gc_type = sync ? FG_GC : BG_GC; |
2478 | gc_control.err_gc_skipped = sync; | |
2479 | ret = f2fs_gc(sbi, &gc_control); | |
7fb17fe4 CY |
2480 | out: |
2481 | mnt_drop_write_file(filp); | |
2482 | return ret; | |
c1c1b583 CY |
2483 | } |
2484 | ||
34178b1b | 2485 | static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range) |
34dc77ad | 2486 | { |
34178b1b | 2487 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp)); |
d147ea4a JK |
2488 | struct f2fs_gc_control gc_control = { |
2489 | .init_gc_type = range->sync ? FG_GC : BG_GC, | |
2490 | .no_bg_gc = false, | |
2491 | .should_migrate_blocks = false, | |
c81d5bae JK |
2492 | .err_gc_skipped = range->sync, |
2493 | .nr_free_secs = 0 }; | |
34dc77ad JK |
2494 | u64 end; |
2495 | int ret; | |
2496 | ||
2497 | if (!capable(CAP_SYS_ADMIN)) | |
2498 | return -EPERM; | |
34dc77ad JK |
2499 | if (f2fs_readonly(sbi->sb)) |
2500 | return -EROFS; | |
2501 | ||
34178b1b CY |
2502 | end = range->start + range->len; |
2503 | if (end < range->start || range->start < MAIN_BLKADDR(sbi) || | |
fbbf7799 | 2504 | end >= MAX_BLKADDR(sbi)) |
b82f6e34 | 2505 | return -EINVAL; |
b82f6e34 | 2506 | |
34dc77ad JK |
2507 | ret = mnt_want_write_file(filp); |
2508 | if (ret) | |
2509 | return ret; | |
2510 | ||
34dc77ad | 2511 | do_more: |
34178b1b | 2512 | if (!range->sync) { |
e4544b63 | 2513 | if (!f2fs_down_write_trylock(&sbi->gc_lock)) { |
34dc77ad JK |
2514 | ret = -EBUSY; |
2515 | goto out; | |
2516 | } | |
2517 | } else { | |
e4544b63 | 2518 | f2fs_down_write(&sbi->gc_lock); |
34dc77ad JK |
2519 | } |
2520 | ||
d147ea4a JK |
2521 | gc_control.victim_segno = GET_SEGNO(sbi, range->start); |
2522 | ret = f2fs_gc(sbi, &gc_control); | |
97767500 QZ |
2523 | if (ret) { |
2524 | if (ret == -EBUSY) | |
2525 | ret = -EAGAIN; | |
2526 | goto out; | |
2527 | } | |
074b5ea2 | 2528 | range->start += CAP_BLKS_PER_SEC(sbi); |
34178b1b | 2529 | if (range->start <= end) |
34dc77ad JK |
2530 | goto do_more; |
2531 | out: | |
2532 | mnt_drop_write_file(filp); | |
2533 | return ret; | |
2534 | } | |
2535 | ||
34178b1b CY |
2536 | static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg) |
2537 | { | |
2538 | struct f2fs_gc_range range; | |
2539 | ||
2540 | if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg, | |
2541 | sizeof(range))) | |
2542 | return -EFAULT; | |
2543 | return __f2fs_ioc_gc_range(filp, &range); | |
2544 | } | |
2545 | ||
ddf1eca4 | 2546 | static int f2fs_ioc_write_checkpoint(struct file *filp) |
456b88e4 CY |
2547 | { |
2548 | struct inode *inode = file_inode(filp); | |
2549 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
7fb17fe4 | 2550 | int ret; |
456b88e4 CY |
2551 | |
2552 | if (!capable(CAP_SYS_ADMIN)) | |
2553 | return -EPERM; | |
2554 | ||
2555 | if (f2fs_readonly(sbi->sb)) | |
2556 | return -EROFS; | |
2557 | ||
4354994f | 2558 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
dcbb4c10 | 2559 | f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled."); |
4354994f DR |
2560 | return -EINVAL; |
2561 | } | |
2562 | ||
7fb17fe4 CY |
2563 | ret = mnt_want_write_file(filp); |
2564 | if (ret) | |
2565 | return ret; | |
2566 | ||
2567 | ret = f2fs_sync_fs(sbi->sb, 1); | |
2568 | ||
2569 | mnt_drop_write_file(filp); | |
2570 | return ret; | |
456b88e4 CY |
2571 | } |
2572 | ||
d323d005 CY |
2573 | static int f2fs_defragment_range(struct f2fs_sb_info *sbi, |
2574 | struct file *filp, | |
2575 | struct f2fs_defragment *range) | |
2576 | { | |
2577 | struct inode *inode = file_inode(filp); | |
f3d98e74 | 2578 | struct f2fs_map_blocks map = { .m_next_extent = NULL, |
5f029c04 | 2579 | .m_seg_type = NO_CHECK_TYPE, |
f4f0b677 | 2580 | .m_may_create = false }; |
fe59109a | 2581 | struct extent_info ei = {}; |
f3d98e74 | 2582 | pgoff_t pg_start, pg_end, next_pgofs; |
3519e3f9 | 2583 | unsigned int blk_per_seg = sbi->blocks_per_seg; |
d323d005 | 2584 | unsigned int total = 0, sec_num; |
d323d005 CY |
2585 | block_t blk_end = 0; |
2586 | bool fragmented = false; | |
2587 | int err; | |
2588 | ||
09cbfeaf KS |
2589 | pg_start = range->start >> PAGE_SHIFT; |
2590 | pg_end = (range->start + range->len) >> PAGE_SHIFT; | |
d323d005 | 2591 | |
2c4db1a6 | 2592 | f2fs_balance_fs(sbi, true); |
d323d005 | 2593 | |
5955102c | 2594 | inode_lock(inode); |
d323d005 | 2595 | |
1018a546 CY |
2596 | /* if in-place-update policy is enabled, don't waste time here */ |
2597 | set_inode_flag(inode, FI_OPU_WRITE); | |
2598 | if (f2fs_should_update_inplace(inode, NULL)) { | |
2599 | err = -EINVAL; | |
2600 | goto out; | |
2601 | } | |
2602 | ||
d323d005 CY |
2603 | /* writeback all dirty pages in the range */ |
2604 | err = filemap_write_and_wait_range(inode->i_mapping, range->start, | |
d8fe4f0e | 2605 | range->start + range->len - 1); |
d323d005 CY |
2606 | if (err) |
2607 | goto out; | |
2608 | ||
2609 | /* | |
2610 | * lookup mapping info in extent cache, skip defragmenting if physical | |
2611 | * block addresses are continuous. | |
2612 | */ | |
e7547dac | 2613 | if (f2fs_lookup_read_extent_cache(inode, pg_start, &ei)) { |
d323d005 CY |
2614 | if (ei.fofs + ei.len >= pg_end) |
2615 | goto out; | |
2616 | } | |
2617 | ||
2618 | map.m_lblk = pg_start; | |
f3d98e74 | 2619 | map.m_next_pgofs = &next_pgofs; |
d323d005 CY |
2620 | |
2621 | /* | |
2622 | * lookup mapping info in dnode page cache, skip defragmenting if all | |
2623 | * physical block addresses are continuous even if there are hole(s) | |
2624 | * in logical blocks. | |
2625 | */ | |
2626 | while (map.m_lblk < pg_end) { | |
a1c1e9b7 | 2627 | map.m_len = pg_end - map.m_lblk; |
cd8fc522 | 2628 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DEFAULT); |
d323d005 CY |
2629 | if (err) |
2630 | goto out; | |
2631 | ||
2632 | if (!(map.m_flags & F2FS_MAP_FLAGS)) { | |
f3d98e74 | 2633 | map.m_lblk = next_pgofs; |
d323d005 CY |
2634 | continue; |
2635 | } | |
2636 | ||
25a912e5 | 2637 | if (blk_end && blk_end != map.m_pblk) |
d323d005 | 2638 | fragmented = true; |
25a912e5 CY |
2639 | |
2640 | /* record total count of block that we're going to move */ | |
2641 | total += map.m_len; | |
2642 | ||
d323d005 CY |
2643 | blk_end = map.m_pblk + map.m_len; |
2644 | ||
2645 | map.m_lblk += map.m_len; | |
d323d005 CY |
2646 | } |
2647 | ||
d3a1a0e1 CY |
2648 | if (!fragmented) { |
2649 | total = 0; | |
d323d005 | 2650 | goto out; |
d3a1a0e1 | 2651 | } |
d323d005 | 2652 | |
074b5ea2 | 2653 | sec_num = DIV_ROUND_UP(total, CAP_BLKS_PER_SEC(sbi)); |
d323d005 CY |
2654 | |
2655 | /* | |
2656 | * make sure there are enough free section for LFS allocation, this can | |
2657 | * avoid defragment running in SSR mode when free section are allocated | |
2658 | * intensively | |
2659 | */ | |
7f3037a5 | 2660 | if (has_not_enough_free_secs(sbi, 0, sec_num)) { |
d323d005 CY |
2661 | err = -EAGAIN; |
2662 | goto out; | |
2663 | } | |
2664 | ||
25a912e5 CY |
2665 | map.m_lblk = pg_start; |
2666 | map.m_len = pg_end - pg_start; | |
2667 | total = 0; | |
2668 | ||
d323d005 CY |
2669 | while (map.m_lblk < pg_end) { |
2670 | pgoff_t idx; | |
2671 | int cnt = 0; | |
2672 | ||
2673 | do_map: | |
a1c1e9b7 | 2674 | map.m_len = pg_end - map.m_lblk; |
cd8fc522 | 2675 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DEFAULT); |
d323d005 CY |
2676 | if (err) |
2677 | goto clear_out; | |
2678 | ||
2679 | if (!(map.m_flags & F2FS_MAP_FLAGS)) { | |
f3d98e74 | 2680 | map.m_lblk = next_pgofs; |
d3a1a0e1 | 2681 | goto check; |
d323d005 CY |
2682 | } |
2683 | ||
1018a546 | 2684 | set_inode_flag(inode, FI_SKIP_WRITES); |
d323d005 CY |
2685 | |
2686 | idx = map.m_lblk; | |
2687 | while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) { | |
2688 | struct page *page; | |
2689 | ||
4d57b86d | 2690 | page = f2fs_get_lock_data_page(inode, idx, true); |
d323d005 CY |
2691 | if (IS_ERR(page)) { |
2692 | err = PTR_ERR(page); | |
2693 | goto clear_out; | |
2694 | } | |
2695 | ||
2696 | set_page_dirty(page); | |
2d1fe8a8 | 2697 | set_page_private_gcing(page); |
d323d005 CY |
2698 | f2fs_put_page(page, 1); |
2699 | ||
2700 | idx++; | |
2701 | cnt++; | |
2702 | total++; | |
2703 | } | |
2704 | ||
2705 | map.m_lblk = idx; | |
d3a1a0e1 CY |
2706 | check: |
2707 | if (map.m_lblk < pg_end && cnt < blk_per_seg) | |
d323d005 CY |
2708 | goto do_map; |
2709 | ||
1018a546 | 2710 | clear_inode_flag(inode, FI_SKIP_WRITES); |
d323d005 CY |
2711 | |
2712 | err = filemap_fdatawrite(inode->i_mapping); | |
2713 | if (err) | |
2714 | goto out; | |
2715 | } | |
2716 | clear_out: | |
1018a546 | 2717 | clear_inode_flag(inode, FI_SKIP_WRITES); |
d323d005 | 2718 | out: |
1018a546 | 2719 | clear_inode_flag(inode, FI_OPU_WRITE); |
5955102c | 2720 | inode_unlock(inode); |
d323d005 | 2721 | if (!err) |
09cbfeaf | 2722 | range->len = (u64)total << PAGE_SHIFT; |
d323d005 CY |
2723 | return err; |
2724 | } | |
2725 | ||
2726 | static int f2fs_ioc_defragment(struct file *filp, unsigned long arg) | |
2727 | { | |
2728 | struct inode *inode = file_inode(filp); | |
2729 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2730 | struct f2fs_defragment range; | |
2731 | int err; | |
2732 | ||
2733 | if (!capable(CAP_SYS_ADMIN)) | |
2734 | return -EPERM; | |
2735 | ||
7eab0c0d | 2736 | if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode)) |
d323d005 CY |
2737 | return -EINVAL; |
2738 | ||
d7563861 KM |
2739 | if (f2fs_readonly(sbi->sb)) |
2740 | return -EROFS; | |
d323d005 CY |
2741 | |
2742 | if (copy_from_user(&range, (struct f2fs_defragment __user *)arg, | |
d7563861 KM |
2743 | sizeof(range))) |
2744 | return -EFAULT; | |
d323d005 CY |
2745 | |
2746 | /* verify alignment of offset & size */ | |
d7563861 KM |
2747 | if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1)) |
2748 | return -EINVAL; | |
d323d005 | 2749 | |
1941d7bc | 2750 | if (unlikely((range.start + range.len) >> PAGE_SHIFT > |
6d1451bf | 2751 | max_file_blocks(inode))) |
d7563861 KM |
2752 | return -EINVAL; |
2753 | ||
2754 | err = mnt_want_write_file(filp); | |
2755 | if (err) | |
2756 | return err; | |
1941d7bc | 2757 | |
d323d005 | 2758 | err = f2fs_defragment_range(sbi, filp, &range); |
d7563861 KM |
2759 | mnt_drop_write_file(filp); |
2760 | ||
d0239e1b | 2761 | f2fs_update_time(sbi, REQ_TIME); |
d323d005 | 2762 | if (err < 0) |
d7563861 | 2763 | return err; |
d323d005 CY |
2764 | |
2765 | if (copy_to_user((struct f2fs_defragment __user *)arg, &range, | |
2766 | sizeof(range))) | |
d7563861 KM |
2767 | return -EFAULT; |
2768 | ||
2769 | return 0; | |
d323d005 CY |
2770 | } |
2771 | ||
4dd6f977 JK |
2772 | static int f2fs_move_file_range(struct file *file_in, loff_t pos_in, |
2773 | struct file *file_out, loff_t pos_out, size_t len) | |
2774 | { | |
2775 | struct inode *src = file_inode(file_in); | |
2776 | struct inode *dst = file_inode(file_out); | |
2777 | struct f2fs_sb_info *sbi = F2FS_I_SB(src); | |
2778 | size_t olen = len, dst_max_i_size = 0; | |
2779 | size_t dst_osize; | |
2780 | int ret; | |
2781 | ||
2782 | if (file_in->f_path.mnt != file_out->f_path.mnt || | |
2783 | src->i_sb != dst->i_sb) | |
2784 | return -EXDEV; | |
2785 | ||
2786 | if (unlikely(f2fs_readonly(src->i_sb))) | |
2787 | return -EROFS; | |
2788 | ||
fe8494bf CY |
2789 | if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode)) |
2790 | return -EINVAL; | |
4dd6f977 | 2791 | |
62230e0d | 2792 | if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst)) |
4dd6f977 JK |
2793 | return -EOPNOTSUPP; |
2794 | ||
aad1383c DR |
2795 | if (pos_out < 0 || pos_in < 0) |
2796 | return -EINVAL; | |
2797 | ||
d95fd91c FL |
2798 | if (src == dst) { |
2799 | if (pos_in == pos_out) | |
2800 | return 0; | |
2801 | if (pos_out > pos_in && pos_out < pos_in + len) | |
2802 | return -EINVAL; | |
2803 | } | |
2804 | ||
4dd6f977 | 2805 | inode_lock(src); |
20a3d61d | 2806 | if (src != dst) { |
bb06664a CY |
2807 | ret = -EBUSY; |
2808 | if (!inode_trylock(dst)) | |
2809 | goto out; | |
20a3d61d | 2810 | } |
4dd6f977 JK |
2811 | |
2812 | ret = -EINVAL; | |
2813 | if (pos_in + len > src->i_size || pos_in + len < pos_in) | |
2814 | goto out_unlock; | |
2815 | if (len == 0) | |
2816 | olen = len = src->i_size - pos_in; | |
2817 | if (pos_in + len == src->i_size) | |
2818 | len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in; | |
2819 | if (len == 0) { | |
2820 | ret = 0; | |
2821 | goto out_unlock; | |
2822 | } | |
2823 | ||
2824 | dst_osize = dst->i_size; | |
2825 | if (pos_out + olen > dst->i_size) | |
2826 | dst_max_i_size = pos_out + olen; | |
2827 | ||
2828 | /* verify the end result is block aligned */ | |
2829 | if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) || | |
2830 | !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) || | |
2831 | !IS_ALIGNED(pos_out, F2FS_BLKSIZE)) | |
2832 | goto out_unlock; | |
2833 | ||
2834 | ret = f2fs_convert_inline_inode(src); | |
2835 | if (ret) | |
2836 | goto out_unlock; | |
2837 | ||
2838 | ret = f2fs_convert_inline_inode(dst); | |
2839 | if (ret) | |
2840 | goto out_unlock; | |
2841 | ||
2842 | /* write out all dirty pages from offset */ | |
2843 | ret = filemap_write_and_wait_range(src->i_mapping, | |
2844 | pos_in, pos_in + len); | |
2845 | if (ret) | |
2846 | goto out_unlock; | |
2847 | ||
2848 | ret = filemap_write_and_wait_range(dst->i_mapping, | |
2849 | pos_out, pos_out + len); | |
2850 | if (ret) | |
2851 | goto out_unlock; | |
2852 | ||
2853 | f2fs_balance_fs(sbi, true); | |
6f8d4455 | 2854 | |
e4544b63 | 2855 | f2fs_down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]); |
6f8d4455 JK |
2856 | if (src != dst) { |
2857 | ret = -EBUSY; | |
e4544b63 | 2858 | if (!f2fs_down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE])) |
6f8d4455 JK |
2859 | goto out_src; |
2860 | } | |
2861 | ||
4dd6f977 | 2862 | f2fs_lock_op(sbi); |
61e4da11 FL |
2863 | ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS, |
2864 | pos_out >> F2FS_BLKSIZE_BITS, | |
2865 | len >> F2FS_BLKSIZE_BITS, false); | |
4dd6f977 JK |
2866 | |
2867 | if (!ret) { | |
2868 | if (dst_max_i_size) | |
2869 | f2fs_i_size_write(dst, dst_max_i_size); | |
2870 | else if (dst_osize != dst->i_size) | |
2871 | f2fs_i_size_write(dst, dst_osize); | |
2872 | } | |
2873 | f2fs_unlock_op(sbi); | |
6f8d4455 JK |
2874 | |
2875 | if (src != dst) | |
e4544b63 | 2876 | f2fs_up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]); |
6f8d4455 | 2877 | out_src: |
e4544b63 | 2878 | f2fs_up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]); |
6f8d4455 JK |
2879 | out_unlock: |
2880 | if (src != dst) | |
4dd6f977 | 2881 | inode_unlock(dst); |
20a3d61d | 2882 | out: |
4dd6f977 JK |
2883 | inode_unlock(src); |
2884 | return ret; | |
2885 | } | |
2886 | ||
34178b1b CY |
2887 | static int __f2fs_ioc_move_range(struct file *filp, |
2888 | struct f2fs_move_range *range) | |
4dd6f977 | 2889 | { |
4dd6f977 JK |
2890 | struct fd dst; |
2891 | int err; | |
2892 | ||
2893 | if (!(filp->f_mode & FMODE_READ) || | |
2894 | !(filp->f_mode & FMODE_WRITE)) | |
2895 | return -EBADF; | |
2896 | ||
34178b1b | 2897 | dst = fdget(range->dst_fd); |
4dd6f977 JK |
2898 | if (!dst.file) |
2899 | return -EBADF; | |
2900 | ||
2901 | if (!(dst.file->f_mode & FMODE_WRITE)) { | |
2902 | err = -EBADF; | |
2903 | goto err_out; | |
2904 | } | |
2905 | ||
2906 | err = mnt_want_write_file(filp); | |
2907 | if (err) | |
2908 | goto err_out; | |
2909 | ||
34178b1b CY |
2910 | err = f2fs_move_file_range(filp, range->pos_in, dst.file, |
2911 | range->pos_out, range->len); | |
4dd6f977 JK |
2912 | |
2913 | mnt_drop_write_file(filp); | |
4dd6f977 JK |
2914 | err_out: |
2915 | fdput(dst); | |
2916 | return err; | |
2917 | } | |
2918 | ||
34178b1b CY |
2919 | static int f2fs_ioc_move_range(struct file *filp, unsigned long arg) |
2920 | { | |
2921 | struct f2fs_move_range range; | |
2922 | ||
2923 | if (copy_from_user(&range, (struct f2fs_move_range __user *)arg, | |
2924 | sizeof(range))) | |
2925 | return -EFAULT; | |
2926 | return __f2fs_ioc_move_range(filp, &range); | |
2927 | } | |
2928 | ||
e066b83c JK |
2929 | static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg) |
2930 | { | |
2931 | struct inode *inode = file_inode(filp); | |
2932 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
2933 | struct sit_info *sm = SIT_I(sbi); | |
2934 | unsigned int start_segno = 0, end_segno = 0; | |
2935 | unsigned int dev_start_segno = 0, dev_end_segno = 0; | |
2936 | struct f2fs_flush_device range; | |
d147ea4a JK |
2937 | struct f2fs_gc_control gc_control = { |
2938 | .init_gc_type = FG_GC, | |
2939 | .should_migrate_blocks = true, | |
c81d5bae JK |
2940 | .err_gc_skipped = true, |
2941 | .nr_free_secs = 0 }; | |
e066b83c JK |
2942 | int ret; |
2943 | ||
2944 | if (!capable(CAP_SYS_ADMIN)) | |
2945 | return -EPERM; | |
2946 | ||
2947 | if (f2fs_readonly(sbi->sb)) | |
2948 | return -EROFS; | |
2949 | ||
4354994f DR |
2950 | if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
2951 | return -EINVAL; | |
2952 | ||
e066b83c JK |
2953 | if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg, |
2954 | sizeof(range))) | |
2955 | return -EFAULT; | |
2956 | ||
0916878d | 2957 | if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num || |
2c70c5e3 | 2958 | __is_large_section(sbi)) { |
dcbb4c10 JP |
2959 | f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1", |
2960 | range.dev_num, sbi->s_ndevs, sbi->segs_per_sec); | |
e066b83c JK |
2961 | return -EINVAL; |
2962 | } | |
2963 | ||
2964 | ret = mnt_want_write_file(filp); | |
2965 | if (ret) | |
2966 | return ret; | |
2967 | ||
2968 | if (range.dev_num != 0) | |
2969 | dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk); | |
2970 | dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk); | |
2971 | ||
2972 | start_segno = sm->last_victim[FLUSH_DEVICE]; | |
2973 | if (start_segno < dev_start_segno || start_segno >= dev_end_segno) | |
2974 | start_segno = dev_start_segno; | |
2975 | end_segno = min(start_segno + range.segments, dev_end_segno); | |
2976 | ||
2977 | while (start_segno < end_segno) { | |
e4544b63 | 2978 | if (!f2fs_down_write_trylock(&sbi->gc_lock)) { |
e066b83c JK |
2979 | ret = -EBUSY; |
2980 | goto out; | |
2981 | } | |
2982 | sm->last_victim[GC_CB] = end_segno + 1; | |
2983 | sm->last_victim[GC_GREEDY] = end_segno + 1; | |
2984 | sm->last_victim[ALLOC_NEXT] = end_segno + 1; | |
d147ea4a JK |
2985 | |
2986 | gc_control.victim_segno = start_segno; | |
2987 | ret = f2fs_gc(sbi, &gc_control); | |
e066b83c JK |
2988 | if (ret == -EAGAIN) |
2989 | ret = 0; | |
2990 | else if (ret < 0) | |
2991 | break; | |
2992 | start_segno++; | |
2993 | } | |
2994 | out: | |
2995 | mnt_drop_write_file(filp); | |
2996 | return ret; | |
2997 | } | |
2998 | ||
e65ef207 JK |
2999 | static int f2fs_ioc_get_features(struct file *filp, unsigned long arg) |
3000 | { | |
3001 | struct inode *inode = file_inode(filp); | |
3002 | u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature); | |
3003 | ||
3004 | /* Must validate to set it with SQLite behavior in Android. */ | |
3005 | sb_feature |= F2FS_FEATURE_ATOMIC_WRITE; | |
3006 | ||
3007 | return put_user(sb_feature, (u32 __user *)arg); | |
3008 | } | |
e066b83c | 3009 | |
2c1d0305 | 3010 | #ifdef CONFIG_QUOTA |
78130819 CY |
3011 | int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid) |
3012 | { | |
3013 | struct dquot *transfer_to[MAXQUOTAS] = {}; | |
3014 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3015 | struct super_block *sb = sbi->sb; | |
8051692f | 3016 | int err; |
78130819 CY |
3017 | |
3018 | transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid)); | |
8051692f YL |
3019 | if (IS_ERR(transfer_to[PRJQUOTA])) |
3020 | return PTR_ERR(transfer_to[PRJQUOTA]); | |
3021 | ||
3022 | err = __dquot_transfer(inode, transfer_to); | |
3023 | if (err) | |
3024 | set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); | |
3025 | dqput(transfer_to[PRJQUOTA]); | |
78130819 CY |
3026 | return err; |
3027 | } | |
3028 | ||
9b1bb01c | 3029 | static int f2fs_ioc_setproject(struct inode *inode, __u32 projid) |
2c1d0305 | 3030 | { |
2c1d0305 CY |
3031 | struct f2fs_inode_info *fi = F2FS_I(inode); |
3032 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
d13732cc | 3033 | struct f2fs_inode *ri = NULL; |
2c1d0305 CY |
3034 | kprojid_t kprojid; |
3035 | int err; | |
3036 | ||
7beb01f7 | 3037 | if (!f2fs_sb_has_project_quota(sbi)) { |
2c1d0305 CY |
3038 | if (projid != F2FS_DEF_PROJID) |
3039 | return -EOPNOTSUPP; | |
3040 | else | |
3041 | return 0; | |
3042 | } | |
3043 | ||
3044 | if (!f2fs_has_extra_attr(inode)) | |
3045 | return -EOPNOTSUPP; | |
3046 | ||
3047 | kprojid = make_kprojid(&init_user_ns, (projid_t)projid); | |
3048 | ||
054cb289 | 3049 | if (projid_eq(kprojid, fi->i_projid)) |
2c1d0305 CY |
3050 | return 0; |
3051 | ||
2c1d0305 | 3052 | err = -EPERM; |
2c1d0305 CY |
3053 | /* Is it quota file? Do not allow user to mess with it */ |
3054 | if (IS_NOQUOTA(inode)) | |
c8e92757 | 3055 | return err; |
2c1d0305 | 3056 | |
d13732cc JY |
3057 | if (!F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid)) |
3058 | return -EOVERFLOW; | |
2c1d0305 | 3059 | |
10a26878 | 3060 | err = f2fs_dquot_initialize(inode); |
c22aecd7 | 3061 | if (err) |
c8e92757 | 3062 | return err; |
2c1d0305 | 3063 | |
78130819 CY |
3064 | f2fs_lock_op(sbi); |
3065 | err = f2fs_transfer_project_quota(inode, kprojid); | |
3066 | if (err) | |
3067 | goto out_unlock; | |
2c1d0305 | 3068 | |
054cb289 | 3069 | fi->i_projid = kprojid; |
2c1d0305 | 3070 | inode->i_ctime = current_time(inode); |
2c1d0305 | 3071 | f2fs_mark_inode_dirty_sync(inode, true); |
78130819 CY |
3072 | out_unlock: |
3073 | f2fs_unlock_op(sbi); | |
2c1d0305 CY |
3074 | return err; |
3075 | } | |
3076 | #else | |
78130819 CY |
3077 | int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid) |
3078 | { | |
3079 | return 0; | |
3080 | } | |
3081 | ||
9b1bb01c | 3082 | static int f2fs_ioc_setproject(struct inode *inode, __u32 projid) |
2c1d0305 CY |
3083 | { |
3084 | if (projid != F2FS_DEF_PROJID) | |
3085 | return -EOPNOTSUPP; | |
3086 | return 0; | |
3087 | } | |
3088 | #endif | |
3089 | ||
9b1bb01c | 3090 | int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa) |
2c1d0305 | 3091 | { |
9b1bb01c | 3092 | struct inode *inode = d_inode(dentry); |
2c1d0305 | 3093 | struct f2fs_inode_info *fi = F2FS_I(inode); |
9b1bb01c | 3094 | u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags); |
2c1d0305 | 3095 | |
9b1bb01c MS |
3096 | if (IS_ENCRYPTED(inode)) |
3097 | fsflags |= FS_ENCRYPT_FL; | |
3098 | if (IS_VERITY(inode)) | |
3099 | fsflags |= FS_VERITY_FL; | |
3100 | if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) | |
3101 | fsflags |= FS_INLINE_DATA_FL; | |
3102 | if (is_inode_flag_set(inode, FI_PIN_FILE)) | |
3103 | fsflags |= FS_NOCOW_FL; | |
3104 | ||
3105 | fileattr_fill_flags(fa, fsflags & F2FS_GETTABLE_FS_FL); | |
2c1d0305 | 3106 | |
7beb01f7 | 3107 | if (f2fs_sb_has_project_quota(F2FS_I_SB(inode))) |
6fc93c4e | 3108 | fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid); |
2c1d0305 | 3109 | |
c8e92757 WS |
3110 | return 0; |
3111 | } | |
3112 | ||
8782a9ae | 3113 | int f2fs_fileattr_set(struct mnt_idmap *idmap, |
9b1bb01c | 3114 | struct dentry *dentry, struct fileattr *fa) |
2c1d0305 | 3115 | { |
9b1bb01c MS |
3116 | struct inode *inode = d_inode(dentry); |
3117 | u32 fsflags = fa->flags, mask = F2FS_SETTABLE_FS_FL; | |
36098557 | 3118 | u32 iflags; |
2c1d0305 CY |
3119 | int err; |
3120 | ||
9b1bb01c MS |
3121 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) |
3122 | return -EIO; | |
3123 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode))) | |
3124 | return -ENOSPC; | |
3125 | if (fsflags & ~F2FS_GETTABLE_FS_FL) | |
2c1d0305 | 3126 | return -EOPNOTSUPP; |
9b1bb01c MS |
3127 | fsflags &= F2FS_SETTABLE_FS_FL; |
3128 | if (!fa->flags_valid) | |
3129 | mask &= FS_COMMON_FL; | |
2c1d0305 | 3130 | |
9b1bb01c | 3131 | iflags = f2fs_fsflags_to_iflags(fsflags); |
36098557 | 3132 | if (f2fs_mask_flags(inode->i_mode, iflags) != iflags) |
2c1d0305 CY |
3133 | return -EOPNOTSUPP; |
3134 | ||
9b1bb01c MS |
3135 | err = f2fs_setflags_common(inode, iflags, f2fs_fsflags_to_iflags(mask)); |
3136 | if (!err) | |
3137 | err = f2fs_ioc_setproject(inode, fa->fsx_projid); | |
2c1d0305 | 3138 | |
c8e92757 | 3139 | return err; |
2c1d0305 | 3140 | } |
e066b83c | 3141 | |
1ad71a27 JK |
3142 | int f2fs_pin_file_control(struct inode *inode, bool inc) |
3143 | { | |
3144 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3145 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3146 | ||
3147 | /* Use i_gc_failures for normal file as a risk signal. */ | |
3148 | if (inc) | |
2ef79ecb CY |
3149 | f2fs_i_gc_failures_write(inode, |
3150 | fi->i_gc_failures[GC_FAILURE_PIN] + 1); | |
1ad71a27 | 3151 | |
2ef79ecb | 3152 | if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) { |
dcbb4c10 JP |
3153 | f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials", |
3154 | __func__, inode->i_ino, | |
3155 | fi->i_gc_failures[GC_FAILURE_PIN]); | |
1ad71a27 JK |
3156 | clear_inode_flag(inode, FI_PIN_FILE); |
3157 | return -EAGAIN; | |
3158 | } | |
3159 | return 0; | |
3160 | } | |
3161 | ||
3162 | static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg) | |
3163 | { | |
3164 | struct inode *inode = file_inode(filp); | |
3165 | __u32 pin; | |
3166 | int ret = 0; | |
3167 | ||
1ad71a27 JK |
3168 | if (get_user(pin, (__u32 __user *)arg)) |
3169 | return -EFAULT; | |
3170 | ||
3171 | if (!S_ISREG(inode->i_mode)) | |
3172 | return -EINVAL; | |
3173 | ||
3174 | if (f2fs_readonly(F2FS_I_SB(inode)->sb)) | |
3175 | return -EROFS; | |
3176 | ||
3177 | ret = mnt_want_write_file(filp); | |
3178 | if (ret) | |
3179 | return ret; | |
3180 | ||
3181 | inode_lock(inode); | |
3182 | ||
3183 | if (!pin) { | |
3184 | clear_inode_flag(inode, FI_PIN_FILE); | |
30933364 | 3185 | f2fs_i_gc_failures_write(inode, 0); |
1ad71a27 JK |
3186 | goto done; |
3187 | } | |
3188 | ||
19bdba52 JK |
3189 | if (f2fs_should_update_outplace(inode, NULL)) { |
3190 | ret = -EINVAL; | |
3191 | goto out; | |
3192 | } | |
3193 | ||
1ad71a27 JK |
3194 | if (f2fs_pin_file_control(inode, false)) { |
3195 | ret = -EAGAIN; | |
3196 | goto out; | |
3197 | } | |
4c8ff709 | 3198 | |
1ad71a27 JK |
3199 | ret = f2fs_convert_inline_inode(inode); |
3200 | if (ret) | |
3201 | goto out; | |
3202 | ||
78134d03 | 3203 | if (!f2fs_disable_compressed_file(inode)) { |
4c8ff709 CY |
3204 | ret = -EOPNOTSUPP; |
3205 | goto out; | |
3206 | } | |
3207 | ||
1ad71a27 | 3208 | set_inode_flag(inode, FI_PIN_FILE); |
2ef79ecb | 3209 | ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]; |
1ad71a27 JK |
3210 | done: |
3211 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); | |
3212 | out: | |
3213 | inode_unlock(inode); | |
3214 | mnt_drop_write_file(filp); | |
3215 | return ret; | |
3216 | } | |
3217 | ||
3218 | static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg) | |
3219 | { | |
3220 | struct inode *inode = file_inode(filp); | |
3221 | __u32 pin = 0; | |
3222 | ||
3223 | if (is_inode_flag_set(inode, FI_PIN_FILE)) | |
2ef79ecb | 3224 | pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]; |
1ad71a27 JK |
3225 | return put_user(pin, (u32 __user *)arg); |
3226 | } | |
3227 | ||
c4020b2d CY |
3228 | int f2fs_precache_extents(struct inode *inode) |
3229 | { | |
3230 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
3231 | struct f2fs_map_blocks map; | |
3232 | pgoff_t m_next_extent; | |
3233 | loff_t end; | |
3234 | int err; | |
3235 | ||
3236 | if (is_inode_flag_set(inode, FI_NO_EXTENT)) | |
3237 | return -EOPNOTSUPP; | |
3238 | ||
3239 | map.m_lblk = 0; | |
3240 | map.m_next_pgofs = NULL; | |
3241 | map.m_next_extent = &m_next_extent; | |
3242 | map.m_seg_type = NO_CHECK_TYPE; | |
f4f0b677 | 3243 | map.m_may_create = false; |
6d1451bf | 3244 | end = max_file_blocks(inode); |
c4020b2d CY |
3245 | |
3246 | while (map.m_lblk < end) { | |
3247 | map.m_len = end - map.m_lblk; | |
3248 | ||
e4544b63 | 3249 | f2fs_down_write(&fi->i_gc_rwsem[WRITE]); |
cd8fc522 | 3250 | err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRECACHE); |
e4544b63 | 3251 | f2fs_up_write(&fi->i_gc_rwsem[WRITE]); |
c4020b2d CY |
3252 | if (err) |
3253 | return err; | |
3254 | ||
3255 | map.m_lblk = m_next_extent; | |
3256 | } | |
3257 | ||
4f55dc2a | 3258 | return 0; |
c4020b2d CY |
3259 | } |
3260 | ||
ddf1eca4 | 3261 | static int f2fs_ioc_precache_extents(struct file *filp) |
c4020b2d CY |
3262 | { |
3263 | return f2fs_precache_extents(file_inode(filp)); | |
3264 | } | |
3265 | ||
04f0b2ea QS |
3266 | static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg) |
3267 | { | |
3268 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp)); | |
3269 | __u64 block_count; | |
04f0b2ea QS |
3270 | |
3271 | if (!capable(CAP_SYS_ADMIN)) | |
3272 | return -EPERM; | |
3273 | ||
3274 | if (f2fs_readonly(sbi->sb)) | |
3275 | return -EROFS; | |
3276 | ||
3277 | if (copy_from_user(&block_count, (void __user *)arg, | |
3278 | sizeof(block_count))) | |
3279 | return -EFAULT; | |
3280 | ||
b4b10061 | 3281 | return f2fs_resize_fs(sbi, block_count); |
04f0b2ea QS |
3282 | } |
3283 | ||
95ae251f EB |
3284 | static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg) |
3285 | { | |
3286 | struct inode *inode = file_inode(filp); | |
3287 | ||
3288 | f2fs_update_time(F2FS_I_SB(inode), REQ_TIME); | |
3289 | ||
3290 | if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) { | |
3291 | f2fs_warn(F2FS_I_SB(inode), | |
833dcd35 | 3292 | "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem", |
95ae251f EB |
3293 | inode->i_ino); |
3294 | return -EOPNOTSUPP; | |
3295 | } | |
3296 | ||
3297 | return fsverity_ioctl_enable(filp, (const void __user *)arg); | |
3298 | } | |
3299 | ||
3300 | static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg) | |
3301 | { | |
3302 | if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp)))) | |
3303 | return -EOPNOTSUPP; | |
3304 | ||
3305 | return fsverity_ioctl_measure(filp, (void __user *)arg); | |
3306 | } | |
3307 | ||
e17fe657 EB |
3308 | static int f2fs_ioc_read_verity_metadata(struct file *filp, unsigned long arg) |
3309 | { | |
3310 | if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp)))) | |
3311 | return -EOPNOTSUPP; | |
3312 | ||
3313 | return fsverity_ioctl_read_metadata(filp, (const void __user *)arg); | |
3314 | } | |
3315 | ||
3357af8f | 3316 | static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg) |
4507847c CY |
3317 | { |
3318 | struct inode *inode = file_inode(filp); | |
3319 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3320 | char *vbuf; | |
3321 | int count; | |
3322 | int err = 0; | |
3323 | ||
3324 | vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL); | |
3325 | if (!vbuf) | |
3326 | return -ENOMEM; | |
3327 | ||
e4544b63 | 3328 | f2fs_down_read(&sbi->sb_lock); |
4507847c CY |
3329 | count = utf16s_to_utf8s(sbi->raw_super->volume_name, |
3330 | ARRAY_SIZE(sbi->raw_super->volume_name), | |
3331 | UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME); | |
e4544b63 | 3332 | f2fs_up_read(&sbi->sb_lock); |
4507847c CY |
3333 | |
3334 | if (copy_to_user((char __user *)arg, vbuf, | |
3335 | min(FSLABEL_MAX, count))) | |
3336 | err = -EFAULT; | |
3337 | ||
c8eb7024 | 3338 | kfree(vbuf); |
4507847c CY |
3339 | return err; |
3340 | } | |
3341 | ||
3357af8f | 3342 | static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg) |
4507847c CY |
3343 | { |
3344 | struct inode *inode = file_inode(filp); | |
3345 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3346 | char *vbuf; | |
3347 | int err = 0; | |
3348 | ||
3349 | if (!capable(CAP_SYS_ADMIN)) | |
3350 | return -EPERM; | |
3351 | ||
3352 | vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX); | |
3353 | if (IS_ERR(vbuf)) | |
3354 | return PTR_ERR(vbuf); | |
3355 | ||
3356 | err = mnt_want_write_file(filp); | |
3357 | if (err) | |
3358 | goto out; | |
3359 | ||
e4544b63 | 3360 | f2fs_down_write(&sbi->sb_lock); |
4507847c CY |
3361 | |
3362 | memset(sbi->raw_super->volume_name, 0, | |
3363 | sizeof(sbi->raw_super->volume_name)); | |
3364 | utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN, | |
3365 | sbi->raw_super->volume_name, | |
3366 | ARRAY_SIZE(sbi->raw_super->volume_name)); | |
3367 | ||
3368 | err = f2fs_commit_super(sbi, false); | |
3369 | ||
e4544b63 | 3370 | f2fs_up_write(&sbi->sb_lock); |
4507847c CY |
3371 | |
3372 | mnt_drop_write_file(filp); | |
3373 | out: | |
3374 | kfree(vbuf); | |
3375 | return err; | |
3376 | } | |
3377 | ||
439dfb10 CY |
3378 | static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg) |
3379 | { | |
3380 | struct inode *inode = file_inode(filp); | |
3381 | __u64 blocks; | |
3382 | ||
3383 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3384 | return -EOPNOTSUPP; | |
3385 | ||
3386 | if (!f2fs_compressed_file(inode)) | |
3387 | return -EINVAL; | |
3388 | ||
c2759eba | 3389 | blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks); |
439dfb10 CY |
3390 | return put_user(blocks, (u64 __user *)arg); |
3391 | } | |
3392 | ||
ef8d563f CY |
3393 | static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count) |
3394 | { | |
3395 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
3396 | unsigned int released_blocks = 0; | |
3397 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
3398 | block_t blkaddr; | |
3399 | int i; | |
3400 | ||
3401 | for (i = 0; i < count; i++) { | |
3402 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
3403 | dn->ofs_in_node + i); | |
3404 | ||
3405 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3406 | continue; | |
3407 | if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
95fa90c9 CY |
3408 | DATA_GENERIC_ENHANCE))) { |
3409 | f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR); | |
ef8d563f | 3410 | return -EFSCORRUPTED; |
95fa90c9 | 3411 | } |
ef8d563f CY |
3412 | } |
3413 | ||
3414 | while (count) { | |
3415 | int compr_blocks = 0; | |
3416 | ||
3417 | for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) { | |
3418 | blkaddr = f2fs_data_blkaddr(dn); | |
3419 | ||
3420 | if (i == 0) { | |
3421 | if (blkaddr == COMPRESS_ADDR) | |
3422 | continue; | |
3423 | dn->ofs_in_node += cluster_size; | |
3424 | goto next; | |
3425 | } | |
3426 | ||
3427 | if (__is_valid_data_blkaddr(blkaddr)) | |
3428 | compr_blocks++; | |
3429 | ||
3430 | if (blkaddr != NEW_ADDR) | |
3431 | continue; | |
3432 | ||
3433 | dn->data_blkaddr = NULL_ADDR; | |
3434 | f2fs_set_data_blkaddr(dn); | |
3435 | } | |
3436 | ||
3437 | f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false); | |
3438 | dec_valid_block_count(sbi, dn->inode, | |
3439 | cluster_size - compr_blocks); | |
3440 | ||
3441 | released_blocks += cluster_size - compr_blocks; | |
3442 | next: | |
3443 | count -= cluster_size; | |
3444 | } | |
3445 | ||
3446 | return released_blocks; | |
3447 | } | |
3448 | ||
3449 | static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg) | |
3450 | { | |
3451 | struct inode *inode = file_inode(filp); | |
3452 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3453 | pgoff_t page_idx = 0, last_idx; | |
3454 | unsigned int released_blocks = 0; | |
3455 | int ret; | |
3456 | int writecount; | |
3457 | ||
3458 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3459 | return -EOPNOTSUPP; | |
3460 | ||
3461 | if (!f2fs_compressed_file(inode)) | |
3462 | return -EINVAL; | |
3463 | ||
3464 | if (f2fs_readonly(sbi->sb)) | |
3465 | return -EROFS; | |
3466 | ||
3467 | ret = mnt_want_write_file(filp); | |
3468 | if (ret) | |
3469 | return ret; | |
3470 | ||
3471 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
3472 | ||
3473 | inode_lock(inode); | |
3474 | ||
3475 | writecount = atomic_read(&inode->i_writecount); | |
8c8cf26a DJ |
3476 | if ((filp->f_mode & FMODE_WRITE && writecount != 1) || |
3477 | (!(filp->f_mode & FMODE_WRITE) && writecount)) { | |
ef8d563f CY |
3478 | ret = -EBUSY; |
3479 | goto out; | |
3480 | } | |
3481 | ||
c6140415 | 3482 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
ef8d563f CY |
3483 | ret = -EINVAL; |
3484 | goto out; | |
3485 | } | |
3486 | ||
3487 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); | |
3488 | if (ret) | |
3489 | goto out; | |
3490 | ||
c6140415 | 3491 | set_inode_flag(inode, FI_COMPRESS_RELEASED); |
ef8d563f CY |
3492 | inode->i_ctime = current_time(inode); |
3493 | f2fs_mark_inode_dirty_sync(inode, true); | |
3494 | ||
c2759eba | 3495 | if (!atomic_read(&F2FS_I(inode)->i_compr_blocks)) |
567c4bf5 DJ |
3496 | goto out; |
3497 | ||
e4544b63 | 3498 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 3499 | filemap_invalidate_lock(inode->i_mapping); |
ef8d563f CY |
3500 | |
3501 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
3502 | ||
3503 | while (page_idx < last_idx) { | |
3504 | struct dnode_of_data dn; | |
3505 | pgoff_t end_offset, count; | |
3506 | ||
3507 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3508 | ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE); | |
3509 | if (ret) { | |
3510 | if (ret == -ENOENT) { | |
3511 | page_idx = f2fs_get_next_page_offset(&dn, | |
3512 | page_idx); | |
3513 | ret = 0; | |
3514 | continue; | |
3515 | } | |
3516 | break; | |
3517 | } | |
3518 | ||
3519 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3520 | count = min(end_offset - dn.ofs_in_node, last_idx - page_idx); | |
4fec3fc0 | 3521 | count = round_up(count, F2FS_I(inode)->i_cluster_size); |
ef8d563f CY |
3522 | |
3523 | ret = release_compress_blocks(&dn, count); | |
3524 | ||
3525 | f2fs_put_dnode(&dn); | |
3526 | ||
3527 | if (ret < 0) | |
3528 | break; | |
3529 | ||
3530 | page_idx += count; | |
3531 | released_blocks += ret; | |
3532 | } | |
3533 | ||
edc6d01b | 3534 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 3535 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
ef8d563f CY |
3536 | out: |
3537 | inode_unlock(inode); | |
3538 | ||
3539 | mnt_drop_write_file(filp); | |
3540 | ||
3541 | if (ret >= 0) { | |
3542 | ret = put_user(released_blocks, (u64 __user *)arg); | |
c2759eba DJ |
3543 | } else if (released_blocks && |
3544 | atomic_read(&F2FS_I(inode)->i_compr_blocks)) { | |
ef8d563f CY |
3545 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
3546 | f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx " | |
c2759eba | 3547 | "iblocks=%llu, released=%u, compr_blocks=%u, " |
ef8d563f CY |
3548 | "run fsck to fix.", |
3549 | __func__, inode->i_ino, inode->i_blocks, | |
3550 | released_blocks, | |
c2759eba | 3551 | atomic_read(&F2FS_I(inode)->i_compr_blocks)); |
ef8d563f CY |
3552 | } |
3553 | ||
3554 | return ret; | |
3555 | } | |
3556 | ||
c75488fb CY |
3557 | static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count) |
3558 | { | |
3559 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); | |
3560 | unsigned int reserved_blocks = 0; | |
3561 | int cluster_size = F2FS_I(dn->inode)->i_cluster_size; | |
3562 | block_t blkaddr; | |
3563 | int i; | |
3564 | ||
3565 | for (i = 0; i < count; i++) { | |
3566 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
3567 | dn->ofs_in_node + i); | |
3568 | ||
3569 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3570 | continue; | |
3571 | if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
95fa90c9 CY |
3572 | DATA_GENERIC_ENHANCE))) { |
3573 | f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR); | |
c75488fb | 3574 | return -EFSCORRUPTED; |
95fa90c9 | 3575 | } |
c75488fb CY |
3576 | } |
3577 | ||
3578 | while (count) { | |
3579 | int compr_blocks = 0; | |
3580 | blkcnt_t reserved; | |
3581 | int ret; | |
3582 | ||
3583 | for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) { | |
3584 | blkaddr = f2fs_data_blkaddr(dn); | |
3585 | ||
3586 | if (i == 0) { | |
3587 | if (blkaddr == COMPRESS_ADDR) | |
3588 | continue; | |
3589 | dn->ofs_in_node += cluster_size; | |
3590 | goto next; | |
3591 | } | |
3592 | ||
3593 | if (__is_valid_data_blkaddr(blkaddr)) { | |
3594 | compr_blocks++; | |
3595 | continue; | |
3596 | } | |
3597 | ||
3598 | dn->data_blkaddr = NEW_ADDR; | |
3599 | f2fs_set_data_blkaddr(dn); | |
3600 | } | |
3601 | ||
3602 | reserved = cluster_size - compr_blocks; | |
3603 | ret = inc_valid_block_count(sbi, dn->inode, &reserved); | |
3604 | if (ret) | |
3605 | return ret; | |
3606 | ||
3607 | if (reserved != cluster_size - compr_blocks) | |
3608 | return -ENOSPC; | |
3609 | ||
3610 | f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true); | |
3611 | ||
3612 | reserved_blocks += reserved; | |
3613 | next: | |
3614 | count -= cluster_size; | |
3615 | } | |
3616 | ||
3617 | return reserved_blocks; | |
3618 | } | |
3619 | ||
3620 | static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg) | |
3621 | { | |
3622 | struct inode *inode = file_inode(filp); | |
3623 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3624 | pgoff_t page_idx = 0, last_idx; | |
3625 | unsigned int reserved_blocks = 0; | |
3626 | int ret; | |
3627 | ||
3628 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3629 | return -EOPNOTSUPP; | |
3630 | ||
3631 | if (!f2fs_compressed_file(inode)) | |
3632 | return -EINVAL; | |
3633 | ||
3634 | if (f2fs_readonly(sbi->sb)) | |
3635 | return -EROFS; | |
3636 | ||
3637 | ret = mnt_want_write_file(filp); | |
3638 | if (ret) | |
3639 | return ret; | |
3640 | ||
c2759eba | 3641 | if (atomic_read(&F2FS_I(inode)->i_compr_blocks)) |
c75488fb CY |
3642 | goto out; |
3643 | ||
3644 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
3645 | ||
3646 | inode_lock(inode); | |
3647 | ||
c6140415 | 3648 | if (!is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
c75488fb CY |
3649 | ret = -EINVAL; |
3650 | goto unlock_inode; | |
3651 | } | |
3652 | ||
e4544b63 | 3653 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 3654 | filemap_invalidate_lock(inode->i_mapping); |
c75488fb CY |
3655 | |
3656 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
3657 | ||
3658 | while (page_idx < last_idx) { | |
3659 | struct dnode_of_data dn; | |
3660 | pgoff_t end_offset, count; | |
3661 | ||
3662 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3663 | ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE); | |
3664 | if (ret) { | |
3665 | if (ret == -ENOENT) { | |
3666 | page_idx = f2fs_get_next_page_offset(&dn, | |
3667 | page_idx); | |
3668 | ret = 0; | |
3669 | continue; | |
3670 | } | |
3671 | break; | |
3672 | } | |
3673 | ||
3674 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3675 | count = min(end_offset - dn.ofs_in_node, last_idx - page_idx); | |
4fec3fc0 | 3676 | count = round_up(count, F2FS_I(inode)->i_cluster_size); |
c75488fb CY |
3677 | |
3678 | ret = reserve_compress_blocks(&dn, count); | |
3679 | ||
3680 | f2fs_put_dnode(&dn); | |
3681 | ||
3682 | if (ret < 0) | |
3683 | break; | |
3684 | ||
3685 | page_idx += count; | |
3686 | reserved_blocks += ret; | |
3687 | } | |
3688 | ||
edc6d01b | 3689 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 3690 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
c75488fb CY |
3691 | |
3692 | if (ret >= 0) { | |
c6140415 | 3693 | clear_inode_flag(inode, FI_COMPRESS_RELEASED); |
c75488fb CY |
3694 | inode->i_ctime = current_time(inode); |
3695 | f2fs_mark_inode_dirty_sync(inode, true); | |
3696 | } | |
3697 | unlock_inode: | |
3698 | inode_unlock(inode); | |
3699 | out: | |
3700 | mnt_drop_write_file(filp); | |
3701 | ||
3702 | if (ret >= 0) { | |
3703 | ret = put_user(reserved_blocks, (u64 __user *)arg); | |
c2759eba DJ |
3704 | } else if (reserved_blocks && |
3705 | atomic_read(&F2FS_I(inode)->i_compr_blocks)) { | |
c75488fb CY |
3706 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
3707 | f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx " | |
c2759eba | 3708 | "iblocks=%llu, reserved=%u, compr_blocks=%u, " |
c75488fb CY |
3709 | "run fsck to fix.", |
3710 | __func__, inode->i_ino, inode->i_blocks, | |
3711 | reserved_blocks, | |
c2759eba | 3712 | atomic_read(&F2FS_I(inode)->i_compr_blocks)); |
c75488fb CY |
3713 | } |
3714 | ||
3715 | return ret; | |
3716 | } | |
3717 | ||
9af84648 DJ |
3718 | static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode, |
3719 | pgoff_t off, block_t block, block_t len, u32 flags) | |
3720 | { | |
9af84648 DJ |
3721 | sector_t sector = SECTOR_FROM_BLOCK(block); |
3722 | sector_t nr_sects = SECTOR_FROM_BLOCK(len); | |
3723 | int ret = 0; | |
3724 | ||
44abff2c CH |
3725 | if (flags & F2FS_TRIM_FILE_DISCARD) { |
3726 | if (bdev_max_secure_erase_sectors(bdev)) | |
3727 | ret = blkdev_issue_secure_erase(bdev, sector, nr_sects, | |
3728 | GFP_NOFS); | |
3729 | else | |
3730 | ret = blkdev_issue_discard(bdev, sector, nr_sects, | |
3731 | GFP_NOFS); | |
3732 | } | |
9af84648 DJ |
3733 | |
3734 | if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) { | |
3735 | if (IS_ENCRYPTED(inode)) | |
3736 | ret = fscrypt_zeroout_range(inode, off, block, len); | |
3737 | else | |
3738 | ret = blkdev_issue_zeroout(bdev, sector, nr_sects, | |
3739 | GFP_NOFS, 0); | |
3740 | } | |
3741 | ||
3742 | return ret; | |
3743 | } | |
3744 | ||
3745 | static int f2fs_sec_trim_file(struct file *filp, unsigned long arg) | |
3746 | { | |
3747 | struct inode *inode = file_inode(filp); | |
3748 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3749 | struct address_space *mapping = inode->i_mapping; | |
3750 | struct block_device *prev_bdev = NULL; | |
3751 | struct f2fs_sectrim_range range; | |
3752 | pgoff_t index, pg_end, prev_index = 0; | |
3753 | block_t prev_block = 0, len = 0; | |
3754 | loff_t end_addr; | |
3755 | bool to_end = false; | |
3756 | int ret = 0; | |
3757 | ||
3758 | if (!(filp->f_mode & FMODE_WRITE)) | |
3759 | return -EBADF; | |
3760 | ||
3761 | if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg, | |
3762 | sizeof(range))) | |
3763 | return -EFAULT; | |
3764 | ||
3765 | if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) || | |
3766 | !S_ISREG(inode->i_mode)) | |
3767 | return -EINVAL; | |
3768 | ||
3769 | if (((range.flags & F2FS_TRIM_FILE_DISCARD) && | |
3770 | !f2fs_hw_support_discard(sbi)) || | |
3771 | ((range.flags & F2FS_TRIM_FILE_ZEROOUT) && | |
3772 | IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi))) | |
3773 | return -EOPNOTSUPP; | |
3774 | ||
3775 | file_start_write(filp); | |
3776 | inode_lock(inode); | |
3777 | ||
3778 | if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) || | |
3779 | range.start >= inode->i_size) { | |
3780 | ret = -EINVAL; | |
3781 | goto err; | |
3782 | } | |
3783 | ||
3784 | if (range.len == 0) | |
3785 | goto err; | |
3786 | ||
3787 | if (inode->i_size - range.start > range.len) { | |
3788 | end_addr = range.start + range.len; | |
3789 | } else { | |
3790 | end_addr = range.len == (u64)-1 ? | |
3791 | sbi->sb->s_maxbytes : inode->i_size; | |
3792 | to_end = true; | |
3793 | } | |
3794 | ||
3795 | if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) || | |
3796 | (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) { | |
3797 | ret = -EINVAL; | |
3798 | goto err; | |
3799 | } | |
3800 | ||
3801 | index = F2FS_BYTES_TO_BLK(range.start); | |
3802 | pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE); | |
3803 | ||
3804 | ret = f2fs_convert_inline_inode(inode); | |
3805 | if (ret) | |
3806 | goto err; | |
3807 | ||
e4544b63 | 3808 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
edc6d01b | 3809 | filemap_invalidate_lock(mapping); |
9af84648 DJ |
3810 | |
3811 | ret = filemap_write_and_wait_range(mapping, range.start, | |
3812 | to_end ? LLONG_MAX : end_addr - 1); | |
3813 | if (ret) | |
3814 | goto out; | |
3815 | ||
3816 | truncate_inode_pages_range(mapping, range.start, | |
3817 | to_end ? -1 : end_addr - 1); | |
3818 | ||
3819 | while (index < pg_end) { | |
3820 | struct dnode_of_data dn; | |
3821 | pgoff_t end_offset, count; | |
3822 | int i; | |
3823 | ||
3824 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
3825 | ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE); | |
3826 | if (ret) { | |
3827 | if (ret == -ENOENT) { | |
3828 | index = f2fs_get_next_page_offset(&dn, index); | |
3829 | continue; | |
3830 | } | |
3831 | goto out; | |
3832 | } | |
3833 | ||
3834 | end_offset = ADDRS_PER_PAGE(dn.node_page, inode); | |
3835 | count = min(end_offset - dn.ofs_in_node, pg_end - index); | |
3836 | for (i = 0; i < count; i++, index++, dn.ofs_in_node++) { | |
3837 | struct block_device *cur_bdev; | |
3838 | block_t blkaddr = f2fs_data_blkaddr(&dn); | |
3839 | ||
3840 | if (!__is_valid_data_blkaddr(blkaddr)) | |
3841 | continue; | |
3842 | ||
3843 | if (!f2fs_is_valid_blkaddr(sbi, blkaddr, | |
3844 | DATA_GENERIC_ENHANCE)) { | |
3845 | ret = -EFSCORRUPTED; | |
3846 | f2fs_put_dnode(&dn); | |
95fa90c9 CY |
3847 | f2fs_handle_error(sbi, |
3848 | ERROR_INVALID_BLKADDR); | |
9af84648 DJ |
3849 | goto out; |
3850 | } | |
3851 | ||
3852 | cur_bdev = f2fs_target_device(sbi, blkaddr, NULL); | |
3853 | if (f2fs_is_multi_device(sbi)) { | |
3854 | int di = f2fs_target_device_index(sbi, blkaddr); | |
3855 | ||
3856 | blkaddr -= FDEV(di).start_blk; | |
3857 | } | |
3858 | ||
3859 | if (len) { | |
3860 | if (prev_bdev == cur_bdev && | |
3861 | index == prev_index + len && | |
3862 | blkaddr == prev_block + len) { | |
3863 | len++; | |
3864 | } else { | |
3865 | ret = f2fs_secure_erase(prev_bdev, | |
3866 | inode, prev_index, prev_block, | |
3867 | len, range.flags); | |
3868 | if (ret) { | |
3869 | f2fs_put_dnode(&dn); | |
3870 | goto out; | |
3871 | } | |
3872 | ||
3873 | len = 0; | |
3874 | } | |
3875 | } | |
3876 | ||
3877 | if (!len) { | |
3878 | prev_bdev = cur_bdev; | |
3879 | prev_index = index; | |
3880 | prev_block = blkaddr; | |
3881 | len = 1; | |
3882 | } | |
3883 | } | |
3884 | ||
3885 | f2fs_put_dnode(&dn); | |
3886 | ||
3887 | if (fatal_signal_pending(current)) { | |
3888 | ret = -EINTR; | |
3889 | goto out; | |
3890 | } | |
3891 | cond_resched(); | |
3892 | } | |
3893 | ||
3894 | if (len) | |
3895 | ret = f2fs_secure_erase(prev_bdev, inode, prev_index, | |
3896 | prev_block, len, range.flags); | |
3897 | out: | |
edc6d01b | 3898 | filemap_invalidate_unlock(mapping); |
e4544b63 | 3899 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
9af84648 DJ |
3900 | err: |
3901 | inode_unlock(inode); | |
3902 | file_end_write(filp); | |
3903 | ||
3904 | return ret; | |
3905 | } | |
3906 | ||
9e2a5f8c | 3907 | static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg) |
52656e6c | 3908 | { |
9e2a5f8c DJ |
3909 | struct inode *inode = file_inode(filp); |
3910 | struct f2fs_comp_option option; | |
3911 | ||
3912 | if (!f2fs_sb_has_compression(F2FS_I_SB(inode))) | |
3913 | return -EOPNOTSUPP; | |
3914 | ||
3915 | inode_lock_shared(inode); | |
3916 | ||
3917 | if (!f2fs_compressed_file(inode)) { | |
3918 | inode_unlock_shared(inode); | |
3919 | return -ENODATA; | |
3920 | } | |
3921 | ||
3922 | option.algorithm = F2FS_I(inode)->i_compress_algorithm; | |
3923 | option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size; | |
3924 | ||
3925 | inode_unlock_shared(inode); | |
3926 | ||
3927 | if (copy_to_user((struct f2fs_comp_option __user *)arg, &option, | |
3928 | sizeof(option))) | |
3929 | return -EFAULT; | |
3930 | ||
3931 | return 0; | |
3932 | } | |
3933 | ||
e1e8debe DJ |
3934 | static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg) |
3935 | { | |
3936 | struct inode *inode = file_inode(filp); | |
3937 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
3938 | struct f2fs_comp_option option; | |
3939 | int ret = 0; | |
1f227a3e | 3940 | |
e1e8debe DJ |
3941 | if (!f2fs_sb_has_compression(sbi)) |
3942 | return -EOPNOTSUPP; | |
3943 | ||
3944 | if (!(filp->f_mode & FMODE_WRITE)) | |
3945 | return -EBADF; | |
3946 | ||
3947 | if (copy_from_user(&option, (struct f2fs_comp_option __user *)arg, | |
3948 | sizeof(option))) | |
3949 | return -EFAULT; | |
3950 | ||
3951 | if (!f2fs_compressed_file(inode) || | |
3952 | option.log_cluster_size < MIN_COMPRESS_LOG_SIZE || | |
3953 | option.log_cluster_size > MAX_COMPRESS_LOG_SIZE || | |
3954 | option.algorithm >= COMPRESS_MAX) | |
3955 | return -EINVAL; | |
3956 | ||
3957 | file_start_write(filp); | |
3958 | inode_lock(inode); | |
3959 | ||
3960 | if (f2fs_is_mmap_file(inode) || get_dirty_pages(inode)) { | |
3961 | ret = -EBUSY; | |
3962 | goto out; | |
3963 | } | |
3964 | ||
e6261beb | 3965 | if (F2FS_HAS_BLOCKS(inode)) { |
e1e8debe DJ |
3966 | ret = -EFBIG; |
3967 | goto out; | |
3968 | } | |
3969 | ||
3970 | F2FS_I(inode)->i_compress_algorithm = option.algorithm; | |
3971 | F2FS_I(inode)->i_log_cluster_size = option.log_cluster_size; | |
447286eb | 3972 | F2FS_I(inode)->i_cluster_size = BIT(option.log_cluster_size); |
e1e8debe DJ |
3973 | f2fs_mark_inode_dirty_sync(inode, true); |
3974 | ||
3975 | if (!f2fs_is_compress_backend_ready(inode)) | |
3976 | f2fs_warn(sbi, "compression algorithm is successfully set, " | |
3977 | "but current kernel doesn't support this algorithm."); | |
3978 | out: | |
3979 | inode_unlock(inode); | |
3980 | file_end_write(filp); | |
3981 | ||
3982 | return ret; | |
3983 | } | |
3984 | ||
5fdb322f DJ |
3985 | static int redirty_blocks(struct inode *inode, pgoff_t page_idx, int len) |
3986 | { | |
fcd9ae4f | 3987 | DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, page_idx); |
5fdb322f DJ |
3988 | struct address_space *mapping = inode->i_mapping; |
3989 | struct page *page; | |
3990 | pgoff_t redirty_idx = page_idx; | |
3991 | int i, page_len = 0, ret = 0; | |
3992 | ||
3993 | page_cache_ra_unbounded(&ractl, len, 0); | |
3994 | ||
3995 | for (i = 0; i < len; i++, page_idx++) { | |
3996 | page = read_cache_page(mapping, page_idx, NULL, NULL); | |
3997 | if (IS_ERR(page)) { | |
3998 | ret = PTR_ERR(page); | |
3999 | break; | |
4000 | } | |
4001 | page_len++; | |
4002 | } | |
4003 | ||
4004 | for (i = 0; i < page_len; i++, redirty_idx++) { | |
4005 | page = find_lock_page(mapping, redirty_idx); | |
a4a0e16d JQ |
4006 | |
4007 | /* It will never fail, when page has pinned above */ | |
4008 | f2fs_bug_on(F2FS_I_SB(inode), !page); | |
4009 | ||
5fdb322f DJ |
4010 | set_page_dirty(page); |
4011 | f2fs_put_page(page, 1); | |
4012 | f2fs_put_page(page, 0); | |
4013 | } | |
4014 | ||
4015 | return ret; | |
4016 | } | |
4017 | ||
ddf1eca4 | 4018 | static int f2fs_ioc_decompress_file(struct file *filp) |
5fdb322f DJ |
4019 | { |
4020 | struct inode *inode = file_inode(filp); | |
4021 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4022 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
4023 | pgoff_t page_idx = 0, last_idx; | |
4024 | unsigned int blk_per_seg = sbi->blocks_per_seg; | |
054cb289 | 4025 | int cluster_size = fi->i_cluster_size; |
5fdb322f DJ |
4026 | int count, ret; |
4027 | ||
4028 | if (!f2fs_sb_has_compression(sbi) || | |
4029 | F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER) | |
4030 | return -EOPNOTSUPP; | |
4031 | ||
4032 | if (!(filp->f_mode & FMODE_WRITE)) | |
4033 | return -EBADF; | |
4034 | ||
4035 | if (!f2fs_compressed_file(inode)) | |
4036 | return -EINVAL; | |
4037 | ||
4038 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
4039 | ||
4040 | file_start_write(filp); | |
4041 | inode_lock(inode); | |
4042 | ||
4043 | if (!f2fs_is_compress_backend_ready(inode)) { | |
4044 | ret = -EOPNOTSUPP; | |
4045 | goto out; | |
4046 | } | |
4047 | ||
90be48bd JK |
4048 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
4049 | ret = -EINVAL; | |
4050 | goto out; | |
4051 | } | |
4052 | ||
5fdb322f DJ |
4053 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); |
4054 | if (ret) | |
4055 | goto out; | |
4056 | ||
4057 | if (!atomic_read(&fi->i_compr_blocks)) | |
4058 | goto out; | |
4059 | ||
4060 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
4061 | ||
4062 | count = last_idx - page_idx; | |
4063 | while (count) { | |
4064 | int len = min(cluster_size, count); | |
4065 | ||
4066 | ret = redirty_blocks(inode, page_idx, len); | |
4067 | if (ret < 0) | |
4068 | break; | |
4069 | ||
b822dc91 YL |
4070 | if (get_dirty_pages(inode) >= blk_per_seg) { |
4071 | ret = filemap_fdatawrite(inode->i_mapping); | |
4072 | if (ret < 0) | |
4073 | break; | |
4074 | } | |
5fdb322f DJ |
4075 | |
4076 | count -= len; | |
4077 | page_idx += len; | |
4078 | } | |
4079 | ||
4080 | if (!ret) | |
4081 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, | |
4082 | LLONG_MAX); | |
4083 | ||
4084 | if (ret) | |
833dcd35 JP |
4085 | f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.", |
4086 | __func__, ret); | |
5fdb322f DJ |
4087 | out: |
4088 | inode_unlock(inode); | |
4089 | file_end_write(filp); | |
4090 | ||
4091 | return ret; | |
4092 | } | |
4093 | ||
ddf1eca4 | 4094 | static int f2fs_ioc_compress_file(struct file *filp) |
5fdb322f DJ |
4095 | { |
4096 | struct inode *inode = file_inode(filp); | |
4097 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4098 | pgoff_t page_idx = 0, last_idx; | |
4099 | unsigned int blk_per_seg = sbi->blocks_per_seg; | |
4100 | int cluster_size = F2FS_I(inode)->i_cluster_size; | |
4101 | int count, ret; | |
4102 | ||
4103 | if (!f2fs_sb_has_compression(sbi) || | |
4104 | F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER) | |
4105 | return -EOPNOTSUPP; | |
4106 | ||
4107 | if (!(filp->f_mode & FMODE_WRITE)) | |
4108 | return -EBADF; | |
4109 | ||
4110 | if (!f2fs_compressed_file(inode)) | |
4111 | return -EINVAL; | |
4112 | ||
4113 | f2fs_balance_fs(F2FS_I_SB(inode), true); | |
4114 | ||
4115 | file_start_write(filp); | |
4116 | inode_lock(inode); | |
4117 | ||
4118 | if (!f2fs_is_compress_backend_ready(inode)) { | |
4119 | ret = -EOPNOTSUPP; | |
4120 | goto out; | |
4121 | } | |
4122 | ||
90be48bd JK |
4123 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { |
4124 | ret = -EINVAL; | |
4125 | goto out; | |
4126 | } | |
4127 | ||
5fdb322f DJ |
4128 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX); |
4129 | if (ret) | |
4130 | goto out; | |
4131 | ||
4132 | set_inode_flag(inode, FI_ENABLE_COMPRESS); | |
4133 | ||
4134 | last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE); | |
4135 | ||
4136 | count = last_idx - page_idx; | |
4137 | while (count) { | |
4138 | int len = min(cluster_size, count); | |
4139 | ||
4140 | ret = redirty_blocks(inode, page_idx, len); | |
4141 | if (ret < 0) | |
4142 | break; | |
4143 | ||
b822dc91 YL |
4144 | if (get_dirty_pages(inode) >= blk_per_seg) { |
4145 | ret = filemap_fdatawrite(inode->i_mapping); | |
4146 | if (ret < 0) | |
4147 | break; | |
4148 | } | |
5fdb322f DJ |
4149 | |
4150 | count -= len; | |
4151 | page_idx += len; | |
4152 | } | |
4153 | ||
4154 | if (!ret) | |
4155 | ret = filemap_write_and_wait_range(inode->i_mapping, 0, | |
4156 | LLONG_MAX); | |
4157 | ||
4158 | clear_inode_flag(inode, FI_ENABLE_COMPRESS); | |
4159 | ||
4160 | if (ret) | |
833dcd35 JP |
4161 | f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.", |
4162 | __func__, ret); | |
5fdb322f DJ |
4163 | out: |
4164 | inode_unlock(inode); | |
4165 | file_end_write(filp); | |
4166 | ||
4167 | return ret; | |
4168 | } | |
4169 | ||
34178b1b | 4170 | static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
52656e6c JK |
4171 | { |
4172 | switch (cmd) { | |
3357af8f | 4173 | case FS_IOC_GETVERSION: |
d49f3e89 | 4174 | return f2fs_ioc_getversion(filp, arg); |
88b88a66 | 4175 | case F2FS_IOC_START_ATOMIC_WRITE: |
41e8f85a DJ |
4176 | return f2fs_ioc_start_atomic_write(filp, false); |
4177 | case F2FS_IOC_START_ATOMIC_REPLACE: | |
4178 | return f2fs_ioc_start_atomic_write(filp, true); | |
88b88a66 JK |
4179 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: |
4180 | return f2fs_ioc_commit_atomic_write(filp); | |
23339e57 DJ |
4181 | case F2FS_IOC_ABORT_ATOMIC_WRITE: |
4182 | return f2fs_ioc_abort_atomic_write(filp); | |
02a1335f | 4183 | case F2FS_IOC_START_VOLATILE_WRITE: |
1e84371f | 4184 | case F2FS_IOC_RELEASE_VOLATILE_WRITE: |
7bc155fe | 4185 | return -EOPNOTSUPP; |
1abff93d JK |
4186 | case F2FS_IOC_SHUTDOWN: |
4187 | return f2fs_ioc_shutdown(filp, arg); | |
52656e6c JK |
4188 | case FITRIM: |
4189 | return f2fs_ioc_fitrim(filp, arg); | |
3357af8f | 4190 | case FS_IOC_SET_ENCRYPTION_POLICY: |
f424f664 | 4191 | return f2fs_ioc_set_encryption_policy(filp, arg); |
3357af8f | 4192 | case FS_IOC_GET_ENCRYPTION_POLICY: |
f424f664 | 4193 | return f2fs_ioc_get_encryption_policy(filp, arg); |
3357af8f | 4194 | case FS_IOC_GET_ENCRYPTION_PWSALT: |
f424f664 | 4195 | return f2fs_ioc_get_encryption_pwsalt(filp, arg); |
8ce589c7 EB |
4196 | case FS_IOC_GET_ENCRYPTION_POLICY_EX: |
4197 | return f2fs_ioc_get_encryption_policy_ex(filp, arg); | |
4198 | case FS_IOC_ADD_ENCRYPTION_KEY: | |
4199 | return f2fs_ioc_add_encryption_key(filp, arg); | |
4200 | case FS_IOC_REMOVE_ENCRYPTION_KEY: | |
4201 | return f2fs_ioc_remove_encryption_key(filp, arg); | |
4202 | case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: | |
4203 | return f2fs_ioc_remove_encryption_key_all_users(filp, arg); | |
4204 | case FS_IOC_GET_ENCRYPTION_KEY_STATUS: | |
4205 | return f2fs_ioc_get_encryption_key_status(filp, arg); | |
ee446e1a EB |
4206 | case FS_IOC_GET_ENCRYPTION_NONCE: |
4207 | return f2fs_ioc_get_encryption_nonce(filp, arg); | |
c1c1b583 CY |
4208 | case F2FS_IOC_GARBAGE_COLLECT: |
4209 | return f2fs_ioc_gc(filp, arg); | |
34dc77ad JK |
4210 | case F2FS_IOC_GARBAGE_COLLECT_RANGE: |
4211 | return f2fs_ioc_gc_range(filp, arg); | |
456b88e4 | 4212 | case F2FS_IOC_WRITE_CHECKPOINT: |
ddf1eca4 | 4213 | return f2fs_ioc_write_checkpoint(filp); |
d323d005 CY |
4214 | case F2FS_IOC_DEFRAGMENT: |
4215 | return f2fs_ioc_defragment(filp, arg); | |
4dd6f977 JK |
4216 | case F2FS_IOC_MOVE_RANGE: |
4217 | return f2fs_ioc_move_range(filp, arg); | |
e066b83c JK |
4218 | case F2FS_IOC_FLUSH_DEVICE: |
4219 | return f2fs_ioc_flush_device(filp, arg); | |
e65ef207 JK |
4220 | case F2FS_IOC_GET_FEATURES: |
4221 | return f2fs_ioc_get_features(filp, arg); | |
1ad71a27 JK |
4222 | case F2FS_IOC_GET_PIN_FILE: |
4223 | return f2fs_ioc_get_pin_file(filp, arg); | |
4224 | case F2FS_IOC_SET_PIN_FILE: | |
4225 | return f2fs_ioc_set_pin_file(filp, arg); | |
c4020b2d | 4226 | case F2FS_IOC_PRECACHE_EXTENTS: |
ddf1eca4 | 4227 | return f2fs_ioc_precache_extents(filp); |
04f0b2ea QS |
4228 | case F2FS_IOC_RESIZE_FS: |
4229 | return f2fs_ioc_resize_fs(filp, arg); | |
95ae251f EB |
4230 | case FS_IOC_ENABLE_VERITY: |
4231 | return f2fs_ioc_enable_verity(filp, arg); | |
4232 | case FS_IOC_MEASURE_VERITY: | |
4233 | return f2fs_ioc_measure_verity(filp, arg); | |
e17fe657 EB |
4234 | case FS_IOC_READ_VERITY_METADATA: |
4235 | return f2fs_ioc_read_verity_metadata(filp, arg); | |
3357af8f EB |
4236 | case FS_IOC_GETFSLABEL: |
4237 | return f2fs_ioc_getfslabel(filp, arg); | |
4238 | case FS_IOC_SETFSLABEL: | |
4239 | return f2fs_ioc_setfslabel(filp, arg); | |
439dfb10 CY |
4240 | case F2FS_IOC_GET_COMPRESS_BLOCKS: |
4241 | return f2fs_get_compress_blocks(filp, arg); | |
ef8d563f CY |
4242 | case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: |
4243 | return f2fs_release_compress_blocks(filp, arg); | |
c75488fb CY |
4244 | case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: |
4245 | return f2fs_reserve_compress_blocks(filp, arg); | |
9af84648 DJ |
4246 | case F2FS_IOC_SEC_TRIM_FILE: |
4247 | return f2fs_sec_trim_file(filp, arg); | |
9e2a5f8c DJ |
4248 | case F2FS_IOC_GET_COMPRESS_OPTION: |
4249 | return f2fs_ioc_get_compress_option(filp, arg); | |
e1e8debe DJ |
4250 | case F2FS_IOC_SET_COMPRESS_OPTION: |
4251 | return f2fs_ioc_set_compress_option(filp, arg); | |
5fdb322f | 4252 | case F2FS_IOC_DECOMPRESS_FILE: |
ddf1eca4 | 4253 | return f2fs_ioc_decompress_file(filp); |
5fdb322f | 4254 | case F2FS_IOC_COMPRESS_FILE: |
ddf1eca4 | 4255 | return f2fs_ioc_compress_file(filp); |
fbfa2cc5 JK |
4256 | default: |
4257 | return -ENOTTY; | |
4258 | } | |
4259 | } | |
4260 | ||
34178b1b CY |
4261 | long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) |
4262 | { | |
4263 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp))))) | |
4264 | return -EIO; | |
4265 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp)))) | |
4266 | return -ENOSPC; | |
4267 | ||
4268 | return __f2fs_ioctl(filp, cmd, arg); | |
4269 | } | |
4270 | ||
a1e09b03 EB |
4271 | /* |
4272 | * Return %true if the given read or write request should use direct I/O, or | |
4273 | * %false if it should use buffered I/O. | |
4274 | */ | |
4275 | static bool f2fs_should_use_dio(struct inode *inode, struct kiocb *iocb, | |
4276 | struct iov_iter *iter) | |
4277 | { | |
4278 | unsigned int align; | |
4279 | ||
4280 | if (!(iocb->ki_flags & IOCB_DIRECT)) | |
4281 | return false; | |
4282 | ||
bd367329 | 4283 | if (f2fs_force_buffered_io(inode, iov_iter_rw(iter))) |
a1e09b03 EB |
4284 | return false; |
4285 | ||
4286 | /* | |
4287 | * Direct I/O not aligned to the disk's logical_block_size will be | |
4288 | * attempted, but will fail with -EINVAL. | |
4289 | * | |
4290 | * f2fs additionally requires that direct I/O be aligned to the | |
4291 | * filesystem block size, which is often a stricter requirement. | |
4292 | * However, f2fs traditionally falls back to buffered I/O on requests | |
4293 | * that are logical_block_size-aligned but not fs-block aligned. | |
4294 | * | |
4295 | * The below logic implements this behavior. | |
4296 | */ | |
4297 | align = iocb->ki_pos | iov_iter_alignment(iter); | |
4298 | if (!IS_ALIGNED(align, i_blocksize(inode)) && | |
4299 | IS_ALIGNED(align, bdev_logical_block_size(inode->i_sb->s_bdev))) | |
4300 | return false; | |
4301 | ||
4302 | return true; | |
4303 | } | |
4304 | ||
4305 | static int f2fs_dio_read_end_io(struct kiocb *iocb, ssize_t size, int error, | |
4306 | unsigned int flags) | |
4307 | { | |
4308 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp)); | |
4309 | ||
4310 | dec_page_count(sbi, F2FS_DIO_READ); | |
4311 | if (error) | |
4312 | return error; | |
34a23525 | 4313 | f2fs_update_iostat(sbi, NULL, APP_DIRECT_READ_IO, size); |
a1e09b03 EB |
4314 | return 0; |
4315 | } | |
4316 | ||
4317 | static const struct iomap_dio_ops f2fs_iomap_dio_read_ops = { | |
4318 | .end_io = f2fs_dio_read_end_io, | |
4319 | }; | |
4320 | ||
4321 | static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to) | |
4c8ff709 CY |
4322 | { |
4323 | struct file *file = iocb->ki_filp; | |
4324 | struct inode *inode = file_inode(file); | |
a1e09b03 EB |
4325 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
4326 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
4327 | const loff_t pos = iocb->ki_pos; | |
4328 | const size_t count = iov_iter_count(to); | |
4329 | struct iomap_dio *dio; | |
4330 | ssize_t ret; | |
4331 | ||
4332 | if (count == 0) | |
4333 | return 0; /* skip atime update */ | |
4334 | ||
bd984c03 | 4335 | trace_f2fs_direct_IO_enter(inode, iocb, count, READ); |
a1e09b03 EB |
4336 | |
4337 | if (iocb->ki_flags & IOCB_NOWAIT) { | |
e4544b63 | 4338 | if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) { |
a1e09b03 EB |
4339 | ret = -EAGAIN; |
4340 | goto out; | |
4341 | } | |
4342 | } else { | |
e4544b63 | 4343 | f2fs_down_read(&fi->i_gc_rwsem[READ]); |
a1e09b03 EB |
4344 | } |
4345 | ||
4346 | /* | |
4347 | * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of | |
4348 | * the higher-level function iomap_dio_rw() in order to ensure that the | |
4349 | * F2FS_DIO_READ counter will be decremented correctly in all cases. | |
4350 | */ | |
4351 | inc_page_count(sbi, F2FS_DIO_READ); | |
4352 | dio = __iomap_dio_rw(iocb, to, &f2fs_iomap_ops, | |
786f847f | 4353 | &f2fs_iomap_dio_read_ops, 0, NULL, 0); |
a1e09b03 EB |
4354 | if (IS_ERR_OR_NULL(dio)) { |
4355 | ret = PTR_ERR_OR_ZERO(dio); | |
4356 | if (ret != -EIOCBQUEUED) | |
4357 | dec_page_count(sbi, F2FS_DIO_READ); | |
4358 | } else { | |
4359 | ret = iomap_dio_complete(dio); | |
4360 | } | |
4361 | ||
e4544b63 | 4362 | f2fs_up_read(&fi->i_gc_rwsem[READ]); |
a1e09b03 EB |
4363 | |
4364 | file_accessed(file); | |
4365 | out: | |
4366 | trace_f2fs_direct_IO_exit(inode, pos, count, READ, ret); | |
4367 | return ret; | |
4368 | } | |
4369 | ||
a28bca0f CH |
4370 | static void f2fs_trace_rw_file_path(struct kiocb *iocb, size_t count, int rw) |
4371 | { | |
4372 | struct inode *inode = file_inode(iocb->ki_filp); | |
4373 | char *buf, *path; | |
4374 | ||
55847850 | 4375 | buf = f2fs_getname(F2FS_I_SB(inode)); |
a28bca0f CH |
4376 | if (!buf) |
4377 | return; | |
4378 | path = dentry_path_raw(file_dentry(iocb->ki_filp), buf, PATH_MAX); | |
4379 | if (IS_ERR(path)) | |
4380 | goto free_buf; | |
4381 | if (rw == WRITE) | |
4382 | trace_f2fs_datawrite_start(inode, iocb->ki_pos, count, | |
4383 | current->pid, path, current->comm); | |
4384 | else | |
4385 | trace_f2fs_dataread_start(inode, iocb->ki_pos, count, | |
4386 | current->pid, path, current->comm); | |
4387 | free_buf: | |
55847850 | 4388 | f2fs_putname(buf); |
a28bca0f CH |
4389 | } |
4390 | ||
a1e09b03 EB |
4391 | static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to) |
4392 | { | |
4393 | struct inode *inode = file_inode(iocb->ki_filp); | |
c277f141 | 4394 | const loff_t pos = iocb->ki_pos; |
a1e09b03 | 4395 | ssize_t ret; |
4c8ff709 CY |
4396 | |
4397 | if (!f2fs_is_compress_backend_ready(inode)) | |
4398 | return -EOPNOTSUPP; | |
4399 | ||
a28bca0f CH |
4400 | if (trace_f2fs_dataread_start_enabled()) |
4401 | f2fs_trace_rw_file_path(iocb, iov_iter_count(to), READ); | |
c277f141 | 4402 | |
c277f141 JK |
4403 | if (f2fs_should_use_dio(inode, iocb, to)) { |
4404 | ret = f2fs_dio_read_iter(iocb, to); | |
4405 | } else { | |
4406 | ret = filemap_read(iocb, to, 0); | |
4407 | if (ret > 0) | |
34a23525 CY |
4408 | f2fs_update_iostat(F2FS_I_SB(inode), inode, |
4409 | APP_BUFFERED_READ_IO, ret); | |
c277f141 JK |
4410 | } |
4411 | if (trace_f2fs_dataread_end_enabled()) | |
4412 | trace_f2fs_dataread_end(inode, pos, ret); | |
8b83ac81 | 4413 | return ret; |
4c8ff709 CY |
4414 | } |
4415 | ||
a1e09b03 EB |
4416 | static ssize_t f2fs_write_checks(struct kiocb *iocb, struct iov_iter *from) |
4417 | { | |
4418 | struct file *file = iocb->ki_filp; | |
4419 | struct inode *inode = file_inode(file); | |
4420 | ssize_t count; | |
4421 | int err; | |
4422 | ||
4423 | if (IS_IMMUTABLE(inode)) | |
4424 | return -EPERM; | |
4425 | ||
4426 | if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) | |
4427 | return -EPERM; | |
4428 | ||
4429 | count = generic_write_checks(iocb, from); | |
4430 | if (count <= 0) | |
4431 | return count; | |
4432 | ||
4433 | err = file_modified(file); | |
4434 | if (err) | |
4435 | return err; | |
4436 | return count; | |
4437 | } | |
4438 | ||
3d697a4a EB |
4439 | /* |
4440 | * Preallocate blocks for a write request, if it is possible and helpful to do | |
4441 | * so. Returns a positive number if blocks may have been preallocated, 0 if no | |
4442 | * blocks were preallocated, or a negative errno value if something went | |
4443 | * seriously wrong. Also sets FI_PREALLOCATED_ALL on the inode if *all* the | |
4444 | * requested blocks (not just some of them) have been allocated. | |
4445 | */ | |
a1e09b03 EB |
4446 | static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter, |
4447 | bool dio) | |
3d697a4a EB |
4448 | { |
4449 | struct inode *inode = file_inode(iocb->ki_filp); | |
4450 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4451 | const loff_t pos = iocb->ki_pos; | |
4452 | const size_t count = iov_iter_count(iter); | |
4453 | struct f2fs_map_blocks map = {}; | |
3d697a4a EB |
4454 | int flag; |
4455 | int ret; | |
4456 | ||
4457 | /* If it will be an out-of-place direct write, don't bother. */ | |
4458 | if (dio && f2fs_lfs_mode(sbi)) | |
4459 | return 0; | |
d4dd19ec JK |
4460 | /* |
4461 | * Don't preallocate holes aligned to DIO_SKIP_HOLES which turns into | |
4462 | * buffered IO, if DIO meets any holes. | |
4463 | */ | |
4464 | if (dio && i_size_read(inode) && | |
4465 | (F2FS_BYTES_TO_BLK(pos) < F2FS_BLK_ALIGN(i_size_read(inode)))) | |
4466 | return 0; | |
3d697a4a EB |
4467 | |
4468 | /* No-wait I/O can't allocate blocks. */ | |
4469 | if (iocb->ki_flags & IOCB_NOWAIT) | |
4470 | return 0; | |
4471 | ||
4472 | /* If it will be a short write, don't bother. */ | |
4473 | if (fault_in_iov_iter_readable(iter, count)) | |
4474 | return 0; | |
4475 | ||
4476 | if (f2fs_has_inline_data(inode)) { | |
4477 | /* If the data will fit inline, don't bother. */ | |
4478 | if (pos + count <= MAX_INLINE_DATA(inode)) | |
4479 | return 0; | |
4480 | ret = f2fs_convert_inline_inode(inode); | |
4481 | if (ret) | |
4482 | return ret; | |
4483 | } | |
4484 | ||
4485 | /* Do not preallocate blocks that will be written partially in 4KB. */ | |
4486 | map.m_lblk = F2FS_BLK_ALIGN(pos); | |
4487 | map.m_len = F2FS_BYTES_TO_BLK(pos + count); | |
4488 | if (map.m_len > map.m_lblk) | |
4489 | map.m_len -= map.m_lblk; | |
4490 | else | |
4491 | map.m_len = 0; | |
4492 | map.m_may_create = true; | |
4493 | if (dio) { | |
4494 | map.m_seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint); | |
4495 | flag = F2FS_GET_BLOCK_PRE_DIO; | |
4496 | } else { | |
4497 | map.m_seg_type = NO_CHECK_TYPE; | |
4498 | flag = F2FS_GET_BLOCK_PRE_AIO; | |
4499 | } | |
4500 | ||
cd8fc522 | 4501 | ret = f2fs_map_blocks(inode, &map, flag); |
d4dd19ec JK |
4502 | /* -ENOSPC|-EDQUOT are fine to report the number of allocated blocks. */ |
4503 | if (ret < 0 && !((ret == -ENOSPC || ret == -EDQUOT) && map.m_len > 0)) | |
3d697a4a EB |
4504 | return ret; |
4505 | if (ret == 0) | |
4506 | set_inode_flag(inode, FI_PREALLOCATED_ALL); | |
4507 | return map.m_len; | |
4508 | } | |
4509 | ||
a1e09b03 EB |
4510 | static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb, |
4511 | struct iov_iter *from) | |
fcc85a4d | 4512 | { |
b439b103 JK |
4513 | struct file *file = iocb->ki_filp; |
4514 | struct inode *inode = file_inode(file); | |
a1e09b03 EB |
4515 | ssize_t ret; |
4516 | ||
4517 | if (iocb->ki_flags & IOCB_NOWAIT) | |
4518 | return -EOPNOTSUPP; | |
4519 | ||
4520 | current->backing_dev_info = inode_to_bdi(inode); | |
800ba295 | 4521 | ret = generic_perform_write(iocb, from); |
a1e09b03 EB |
4522 | current->backing_dev_info = NULL; |
4523 | ||
4524 | if (ret > 0) { | |
4525 | iocb->ki_pos += ret; | |
34a23525 CY |
4526 | f2fs_update_iostat(F2FS_I_SB(inode), inode, |
4527 | APP_BUFFERED_IO, ret); | |
a1e09b03 EB |
4528 | } |
4529 | return ret; | |
4530 | } | |
4531 | ||
4532 | static int f2fs_dio_write_end_io(struct kiocb *iocb, ssize_t size, int error, | |
4533 | unsigned int flags) | |
4534 | { | |
4535 | struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp)); | |
4536 | ||
4537 | dec_page_count(sbi, F2FS_DIO_WRITE); | |
4538 | if (error) | |
4539 | return error; | |
34a23525 | 4540 | f2fs_update_iostat(sbi, NULL, APP_DIRECT_IO, size); |
a1e09b03 EB |
4541 | return 0; |
4542 | } | |
4543 | ||
4544 | static const struct iomap_dio_ops f2fs_iomap_dio_write_ops = { | |
4545 | .end_io = f2fs_dio_write_end_io, | |
4546 | }; | |
4547 | ||
92318f20 HH |
4548 | static void f2fs_flush_buffered_write(struct address_space *mapping, |
4549 | loff_t start_pos, loff_t end_pos) | |
4550 | { | |
4551 | int ret; | |
4552 | ||
4553 | ret = filemap_write_and_wait_range(mapping, start_pos, end_pos); | |
4554 | if (ret < 0) | |
4555 | return; | |
4556 | invalidate_mapping_pages(mapping, | |
4557 | start_pos >> PAGE_SHIFT, | |
4558 | end_pos >> PAGE_SHIFT); | |
4559 | } | |
4560 | ||
a1e09b03 EB |
4561 | static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from, |
4562 | bool *may_need_sync) | |
4563 | { | |
4564 | struct file *file = iocb->ki_filp; | |
4565 | struct inode *inode = file_inode(file); | |
4566 | struct f2fs_inode_info *fi = F2FS_I(inode); | |
4567 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
4568 | const bool do_opu = f2fs_lfs_mode(sbi); | |
a1e09b03 EB |
4569 | const loff_t pos = iocb->ki_pos; |
4570 | const ssize_t count = iov_iter_count(from); | |
a1e09b03 EB |
4571 | unsigned int dio_flags; |
4572 | struct iomap_dio *dio; | |
4573 | ssize_t ret; | |
4574 | ||
bd984c03 | 4575 | trace_f2fs_direct_IO_enter(inode, iocb, count, WRITE); |
a1e09b03 EB |
4576 | |
4577 | if (iocb->ki_flags & IOCB_NOWAIT) { | |
4578 | /* f2fs_convert_inline_inode() and block allocation can block */ | |
4579 | if (f2fs_has_inline_data(inode) || | |
4580 | !f2fs_overwrite_io(inode, pos, count)) { | |
4581 | ret = -EAGAIN; | |
4582 | goto out; | |
4583 | } | |
4584 | ||
e4544b63 | 4585 | if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[WRITE])) { |
a1e09b03 EB |
4586 | ret = -EAGAIN; |
4587 | goto out; | |
4588 | } | |
e4544b63 TM |
4589 | if (do_opu && !f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) { |
4590 | f2fs_up_read(&fi->i_gc_rwsem[WRITE]); | |
a1e09b03 EB |
4591 | ret = -EAGAIN; |
4592 | goto out; | |
4593 | } | |
4594 | } else { | |
4595 | ret = f2fs_convert_inline_inode(inode); | |
4596 | if (ret) | |
4597 | goto out; | |
4598 | ||
e4544b63 | 4599 | f2fs_down_read(&fi->i_gc_rwsem[WRITE]); |
a1e09b03 | 4600 | if (do_opu) |
e4544b63 | 4601 | f2fs_down_read(&fi->i_gc_rwsem[READ]); |
a1e09b03 | 4602 | } |
a1e09b03 EB |
4603 | |
4604 | /* | |
4605 | * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of | |
4606 | * the higher-level function iomap_dio_rw() in order to ensure that the | |
4607 | * F2FS_DIO_WRITE counter will be decremented correctly in all cases. | |
4608 | */ | |
4609 | inc_page_count(sbi, F2FS_DIO_WRITE); | |
4610 | dio_flags = 0; | |
4611 | if (pos + count > inode->i_size) | |
4612 | dio_flags |= IOMAP_DIO_FORCE_WAIT; | |
4613 | dio = __iomap_dio_rw(iocb, from, &f2fs_iomap_ops, | |
786f847f | 4614 | &f2fs_iomap_dio_write_ops, dio_flags, NULL, 0); |
a1e09b03 EB |
4615 | if (IS_ERR_OR_NULL(dio)) { |
4616 | ret = PTR_ERR_OR_ZERO(dio); | |
4617 | if (ret == -ENOTBLK) | |
4618 | ret = 0; | |
4619 | if (ret != -EIOCBQUEUED) | |
4620 | dec_page_count(sbi, F2FS_DIO_WRITE); | |
4621 | } else { | |
4622 | ret = iomap_dio_complete(dio); | |
4623 | } | |
4624 | ||
a1e09b03 | 4625 | if (do_opu) |
e4544b63 TM |
4626 | f2fs_up_read(&fi->i_gc_rwsem[READ]); |
4627 | f2fs_up_read(&fi->i_gc_rwsem[WRITE]); | |
a1e09b03 EB |
4628 | |
4629 | if (ret < 0) | |
4630 | goto out; | |
4631 | if (pos + ret > inode->i_size) | |
4632 | f2fs_i_size_write(inode, pos + ret); | |
4633 | if (!do_opu) | |
4634 | set_inode_flag(inode, FI_UPDATE_WRITE); | |
4635 | ||
4636 | if (iov_iter_count(from)) { | |
4637 | ssize_t ret2; | |
4638 | loff_t bufio_start_pos = iocb->ki_pos; | |
4639 | ||
4640 | /* | |
4641 | * The direct write was partial, so we need to fall back to a | |
4642 | * buffered write for the remainder. | |
4643 | */ | |
4644 | ||
4645 | ret2 = f2fs_buffered_write_iter(iocb, from); | |
4646 | if (iov_iter_count(from)) | |
4647 | f2fs_write_failed(inode, iocb->ki_pos); | |
4648 | if (ret2 < 0) | |
4649 | goto out; | |
4650 | ||
4651 | /* | |
4652 | * Ensure that the pagecache pages are written to disk and | |
4653 | * invalidated to preserve the expected O_DIRECT semantics. | |
4654 | */ | |
4655 | if (ret2 > 0) { | |
4656 | loff_t bufio_end_pos = bufio_start_pos + ret2 - 1; | |
4657 | ||
4658 | ret += ret2; | |
4659 | ||
92318f20 HH |
4660 | f2fs_flush_buffered_write(file->f_mapping, |
4661 | bufio_start_pos, | |
4662 | bufio_end_pos); | |
a1e09b03 EB |
4663 | } |
4664 | } else { | |
4665 | /* iomap_dio_rw() already handled the generic_write_sync(). */ | |
4666 | *may_need_sync = false; | |
4667 | } | |
4668 | out: | |
4669 | trace_f2fs_direct_IO_exit(inode, pos, count, WRITE, ret); | |
4670 | return ret; | |
4671 | } | |
4672 | ||
4673 | static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) | |
4674 | { | |
4675 | struct inode *inode = file_inode(iocb->ki_filp); | |
ccf7cf92 EB |
4676 | const loff_t orig_pos = iocb->ki_pos; |
4677 | const size_t orig_count = iov_iter_count(from); | |
3d697a4a | 4678 | loff_t target_size; |
a1e09b03 EB |
4679 | bool dio; |
4680 | bool may_need_sync = true; | |
3d697a4a | 4681 | int preallocated; |
b439b103 | 4682 | ssize_t ret; |
fcc85a4d | 4683 | |
126ce721 CY |
4684 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { |
4685 | ret = -EIO; | |
4686 | goto out; | |
4687 | } | |
1f227a3e | 4688 | |
7bd29358 CY |
4689 | if (!f2fs_is_compress_backend_ready(inode)) { |
4690 | ret = -EOPNOTSUPP; | |
4691 | goto out; | |
4692 | } | |
4c8ff709 | 4693 | |
cb8434f1 GR |
4694 | if (iocb->ki_flags & IOCB_NOWAIT) { |
4695 | if (!inode_trylock(inode)) { | |
126ce721 CY |
4696 | ret = -EAGAIN; |
4697 | goto out; | |
4698 | } | |
cb8434f1 | 4699 | } else { |
b91050a8 HL |
4700 | inode_lock(inode); |
4701 | } | |
4702 | ||
a1e09b03 | 4703 | ret = f2fs_write_checks(iocb, from); |
b31bf0f9 EB |
4704 | if (ret <= 0) |
4705 | goto out_unlock; | |
4706 | ||
a1e09b03 EB |
4707 | /* Determine whether we will do a direct write or a buffered write. */ |
4708 | dio = f2fs_should_use_dio(inode, iocb, from); | |
3d697a4a | 4709 | |
b31bf0f9 EB |
4710 | /* Possibly preallocate the blocks for the write. */ |
4711 | target_size = iocb->ki_pos + iov_iter_count(from); | |
a1e09b03 | 4712 | preallocated = f2fs_preallocate_blocks(iocb, from, dio); |
c277f141 | 4713 | if (preallocated < 0) { |
b31bf0f9 | 4714 | ret = preallocated; |
c277f141 | 4715 | } else { |
a28bca0f CH |
4716 | if (trace_f2fs_datawrite_start_enabled()) |
4717 | f2fs_trace_rw_file_path(iocb, orig_count, WRITE); | |
4718 | ||
a1e09b03 EB |
4719 | /* Do the actual write. */ |
4720 | ret = dio ? | |
544b53da | 4721 | f2fs_dio_write_iter(iocb, from, &may_need_sync) : |
a1e09b03 | 4722 | f2fs_buffered_write_iter(iocb, from); |
dc7a10dd | 4723 | |
c277f141 JK |
4724 | if (trace_f2fs_datawrite_end_enabled()) |
4725 | trace_f2fs_datawrite_end(inode, orig_pos, ret); | |
4726 | } | |
4727 | ||
b31bf0f9 | 4728 | /* Don't leave any preallocated blocks around past i_size. */ |
d4dd19ec | 4729 | if (preallocated && i_size_read(inode) < target_size) { |
e4544b63 | 4730 | f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
b31bf0f9 | 4731 | filemap_invalidate_lock(inode->i_mapping); |
d4dd19ec JK |
4732 | if (!f2fs_truncate(inode)) |
4733 | file_dont_truncate(inode); | |
b31bf0f9 | 4734 | filemap_invalidate_unlock(inode->i_mapping); |
e4544b63 | 4735 | f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]); |
d4dd19ec JK |
4736 | } else { |
4737 | file_dont_truncate(inode); | |
b439b103 | 4738 | } |
b31bf0f9 EB |
4739 | |
4740 | clear_inode_flag(inode, FI_PREALLOCATED_ALL); | |
3d697a4a | 4741 | out_unlock: |
b439b103 | 4742 | inode_unlock(inode); |
126ce721 | 4743 | out: |
ccf7cf92 | 4744 | trace_f2fs_file_write_iter(inode, orig_pos, orig_count, ret); |
92318f20 | 4745 | |
a1e09b03 | 4746 | if (ret > 0 && may_need_sync) |
e2592217 | 4747 | ret = generic_write_sync(iocb, ret); |
92318f20 HH |
4748 | |
4749 | /* If buffered IO was forced, flush and drop the data from | |
4750 | * the page cache to preserve O_DIRECT semantics | |
4751 | */ | |
4752 | if (ret > 0 && !dio && (iocb->ki_flags & IOCB_DIRECT)) | |
4753 | f2fs_flush_buffered_write(iocb->ki_filp->f_mapping, | |
4754 | orig_pos, | |
4755 | orig_pos + ret - 1); | |
4756 | ||
b439b103 | 4757 | return ret; |
fcc85a4d JK |
4758 | } |
4759 | ||
0f6b56ec DJ |
4760 | static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len, |
4761 | int advice) | |
4762 | { | |
0f6b56ec DJ |
4763 | struct address_space *mapping; |
4764 | struct backing_dev_info *bdi; | |
e64347ae FC |
4765 | struct inode *inode = file_inode(filp); |
4766 | int err; | |
0f6b56ec DJ |
4767 | |
4768 | if (advice == POSIX_FADV_SEQUENTIAL) { | |
0f6b56ec DJ |
4769 | if (S_ISFIFO(inode->i_mode)) |
4770 | return -ESPIPE; | |
4771 | ||
4772 | mapping = filp->f_mapping; | |
4773 | if (!mapping || len < 0) | |
4774 | return -EINVAL; | |
4775 | ||
4776 | bdi = inode_to_bdi(mapping->host); | |
4777 | filp->f_ra.ra_pages = bdi->ra_pages * | |
4778 | F2FS_I_SB(inode)->seq_file_ra_mul; | |
4779 | spin_lock(&filp->f_lock); | |
4780 | filp->f_mode &= ~FMODE_RANDOM; | |
4781 | spin_unlock(&filp->f_lock); | |
4782 | return 0; | |
4783 | } | |
4784 | ||
e64347ae FC |
4785 | err = generic_fadvise(filp, offset, len, advice); |
4786 | if (!err && advice == POSIX_FADV_DONTNEED && | |
4787 | test_opt(F2FS_I_SB(inode), COMPRESS_CACHE) && | |
4788 | f2fs_compressed_file(inode)) | |
4789 | f2fs_invalidate_compress_pages(F2FS_I_SB(inode), inode->i_ino); | |
4790 | ||
4791 | return err; | |
0f6b56ec DJ |
4792 | } |
4793 | ||
e9750824 | 4794 | #ifdef CONFIG_COMPAT |
34178b1b CY |
4795 | struct compat_f2fs_gc_range { |
4796 | u32 sync; | |
4797 | compat_u64 start; | |
4798 | compat_u64 len; | |
4799 | }; | |
4800 | #define F2FS_IOC32_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11,\ | |
4801 | struct compat_f2fs_gc_range) | |
4802 | ||
4803 | static int f2fs_compat_ioc_gc_range(struct file *file, unsigned long arg) | |
4804 | { | |
4805 | struct compat_f2fs_gc_range __user *urange; | |
4806 | struct f2fs_gc_range range; | |
4807 | int err; | |
4808 | ||
4809 | urange = compat_ptr(arg); | |
4810 | err = get_user(range.sync, &urange->sync); | |
4811 | err |= get_user(range.start, &urange->start); | |
4812 | err |= get_user(range.len, &urange->len); | |
4813 | if (err) | |
4814 | return -EFAULT; | |
4815 | ||
4816 | return __f2fs_ioc_gc_range(file, &range); | |
4817 | } | |
4818 | ||
4819 | struct compat_f2fs_move_range { | |
4820 | u32 dst_fd; | |
4821 | compat_u64 pos_in; | |
4822 | compat_u64 pos_out; | |
4823 | compat_u64 len; | |
4824 | }; | |
4825 | #define F2FS_IOC32_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ | |
4826 | struct compat_f2fs_move_range) | |
4827 | ||
4828 | static int f2fs_compat_ioc_move_range(struct file *file, unsigned long arg) | |
4829 | { | |
4830 | struct compat_f2fs_move_range __user *urange; | |
4831 | struct f2fs_move_range range; | |
4832 | int err; | |
4833 | ||
4834 | urange = compat_ptr(arg); | |
4835 | err = get_user(range.dst_fd, &urange->dst_fd); | |
4836 | err |= get_user(range.pos_in, &urange->pos_in); | |
4837 | err |= get_user(range.pos_out, &urange->pos_out); | |
4838 | err |= get_user(range.len, &urange->len); | |
4839 | if (err) | |
4840 | return -EFAULT; | |
4841 | ||
4842 | return __f2fs_ioc_move_range(file, &range); | |
4843 | } | |
4844 | ||
e9750824 NJ |
4845 | long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
4846 | { | |
34178b1b CY |
4847 | if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file))))) |
4848 | return -EIO; | |
4849 | if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(file)))) | |
4850 | return -ENOSPC; | |
4851 | ||
e9750824 | 4852 | switch (cmd) { |
3357af8f EB |
4853 | case FS_IOC32_GETVERSION: |
4854 | cmd = FS_IOC_GETVERSION; | |
04ef4b62 | 4855 | break; |
34178b1b CY |
4856 | case F2FS_IOC32_GARBAGE_COLLECT_RANGE: |
4857 | return f2fs_compat_ioc_gc_range(file, arg); | |
4858 | case F2FS_IOC32_MOVE_RANGE: | |
4859 | return f2fs_compat_ioc_move_range(file, arg); | |
04ef4b62 | 4860 | case F2FS_IOC_START_ATOMIC_WRITE: |
933141e4 | 4861 | case F2FS_IOC_START_ATOMIC_REPLACE: |
04ef4b62 CY |
4862 | case F2FS_IOC_COMMIT_ATOMIC_WRITE: |
4863 | case F2FS_IOC_START_VOLATILE_WRITE: | |
4864 | case F2FS_IOC_RELEASE_VOLATILE_WRITE: | |
23339e57 | 4865 | case F2FS_IOC_ABORT_ATOMIC_WRITE: |
04ef4b62 | 4866 | case F2FS_IOC_SHUTDOWN: |
314999dc | 4867 | case FITRIM: |
3357af8f EB |
4868 | case FS_IOC_SET_ENCRYPTION_POLICY: |
4869 | case FS_IOC_GET_ENCRYPTION_PWSALT: | |
4870 | case FS_IOC_GET_ENCRYPTION_POLICY: | |
8ce589c7 EB |
4871 | case FS_IOC_GET_ENCRYPTION_POLICY_EX: |
4872 | case FS_IOC_ADD_ENCRYPTION_KEY: | |
4873 | case FS_IOC_REMOVE_ENCRYPTION_KEY: | |
4874 | case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS: | |
4875 | case FS_IOC_GET_ENCRYPTION_KEY_STATUS: | |
ee446e1a | 4876 | case FS_IOC_GET_ENCRYPTION_NONCE: |
04ef4b62 CY |
4877 | case F2FS_IOC_GARBAGE_COLLECT: |
4878 | case F2FS_IOC_WRITE_CHECKPOINT: | |
4879 | case F2FS_IOC_DEFRAGMENT: | |
e066b83c | 4880 | case F2FS_IOC_FLUSH_DEVICE: |
e65ef207 | 4881 | case F2FS_IOC_GET_FEATURES: |
1ad71a27 JK |
4882 | case F2FS_IOC_GET_PIN_FILE: |
4883 | case F2FS_IOC_SET_PIN_FILE: | |
c4020b2d | 4884 | case F2FS_IOC_PRECACHE_EXTENTS: |
04f0b2ea | 4885 | case F2FS_IOC_RESIZE_FS: |
95ae251f EB |
4886 | case FS_IOC_ENABLE_VERITY: |
4887 | case FS_IOC_MEASURE_VERITY: | |
e17fe657 | 4888 | case FS_IOC_READ_VERITY_METADATA: |
3357af8f EB |
4889 | case FS_IOC_GETFSLABEL: |
4890 | case FS_IOC_SETFSLABEL: | |
439dfb10 | 4891 | case F2FS_IOC_GET_COMPRESS_BLOCKS: |
ef8d563f | 4892 | case F2FS_IOC_RELEASE_COMPRESS_BLOCKS: |
c75488fb | 4893 | case F2FS_IOC_RESERVE_COMPRESS_BLOCKS: |
9af84648 | 4894 | case F2FS_IOC_SEC_TRIM_FILE: |
9e2a5f8c | 4895 | case F2FS_IOC_GET_COMPRESS_OPTION: |
e1e8debe | 4896 | case F2FS_IOC_SET_COMPRESS_OPTION: |
5fdb322f DJ |
4897 | case F2FS_IOC_DECOMPRESS_FILE: |
4898 | case F2FS_IOC_COMPRESS_FILE: | |
4dd6f977 | 4899 | break; |
e9750824 NJ |
4900 | default: |
4901 | return -ENOIOCTLCMD; | |
4902 | } | |
34178b1b | 4903 | return __f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg)); |
e9750824 NJ |
4904 | } |
4905 | #endif | |
4906 | ||
fbfa2cc5 | 4907 | const struct file_operations f2fs_file_operations = { |
267378d4 | 4908 | .llseek = f2fs_llseek, |
4c8ff709 | 4909 | .read_iter = f2fs_file_read_iter, |
fcc85a4d | 4910 | .write_iter = f2fs_file_write_iter, |
50aa6f44 | 4911 | .iopoll = iocb_bio_iopoll, |
fcc85a4d | 4912 | .open = f2fs_file_open, |
12662234 | 4913 | .release = f2fs_release_file, |
fbfa2cc5 | 4914 | .mmap = f2fs_file_mmap, |
7a10f017 | 4915 | .flush = f2fs_file_flush, |
fbfa2cc5 JK |
4916 | .fsync = f2fs_sync_file, |
4917 | .fallocate = f2fs_fallocate, | |
4918 | .unlocked_ioctl = f2fs_ioctl, | |
e9750824 NJ |
4919 | #ifdef CONFIG_COMPAT |
4920 | .compat_ioctl = f2fs_compat_ioctl, | |
4921 | #endif | |
fbfa2cc5 | 4922 | .splice_read = generic_file_splice_read, |
8d020765 | 4923 | .splice_write = iter_file_splice_write, |
0f6b56ec | 4924 | .fadvise = f2fs_file_fadvise, |
fbfa2cc5 | 4925 | }; |