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Commit | Line | Data |
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e18c65b2 HL |
1 | /* |
2 | * fs/f2fs/inline.c | |
3 | * Copyright (c) 2013, Intel Corporation | |
4 | * Authors: Huajun Li <huajun.li@intel.com> | |
5 | * Haicheng Li <haicheng.li@intel.com> | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/fs.h> | |
12 | #include <linux/f2fs_fs.h> | |
13 | ||
14 | #include "f2fs.h" | |
15 | ||
e18c65b2 HL |
16 | bool f2fs_may_inline(struct inode *inode) |
17 | { | |
4081363f | 18 | if (!test_opt(F2FS_I_SB(inode), INLINE_DATA)) |
e18c65b2 HL |
19 | return false; |
20 | ||
88b88a66 JK |
21 | if (f2fs_is_atomic_file(inode)) |
22 | return false; | |
23 | ||
b3d208f9 | 24 | if (!S_ISREG(inode->i_mode)) |
e18c65b2 HL |
25 | return false; |
26 | ||
92dffd01 JK |
27 | if (i_size_read(inode) > MAX_INLINE_DATA) |
28 | return false; | |
29 | ||
e18c65b2 HL |
30 | return true; |
31 | } | |
32 | ||
b3d208f9 | 33 | void read_inline_data(struct page *page, struct page *ipage) |
e18c65b2 | 34 | { |
e18c65b2 HL |
35 | void *src_addr, *dst_addr; |
36 | ||
b3d208f9 JK |
37 | if (PageUptodate(page)) |
38 | return; | |
04a17fb1 | 39 | |
b3d208f9 | 40 | f2fs_bug_on(F2FS_P_SB(page), page->index); |
e18c65b2 | 41 | |
18309aaa | 42 | zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE); |
e18c65b2 HL |
43 | |
44 | /* Copy the whole inline data block */ | |
45 | src_addr = inline_data_addr(ipage); | |
f1e33a04 | 46 | dst_addr = kmap_atomic(page); |
e18c65b2 | 47 | memcpy(dst_addr, src_addr, MAX_INLINE_DATA); |
427a45c8 | 48 | flush_dcache_page(page); |
f1e33a04 | 49 | kunmap_atomic(dst_addr); |
e18c65b2 | 50 | SetPageUptodate(page); |
b3d208f9 JK |
51 | } |
52 | ||
53 | int f2fs_read_inline_data(struct inode *inode, struct page *page) | |
54 | { | |
55 | struct page *ipage; | |
56 | ||
57 | ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino); | |
58 | if (IS_ERR(ipage)) { | |
59 | unlock_page(page); | |
60 | return PTR_ERR(ipage); | |
61 | } | |
e18c65b2 | 62 | |
b3d208f9 JK |
63 | if (!f2fs_has_inline_data(inode)) { |
64 | f2fs_put_page(ipage, 1); | |
65 | return -EAGAIN; | |
66 | } | |
67 | ||
68 | if (page->index) | |
69 | zero_user_segment(page, 0, PAGE_CACHE_SIZE); | |
70 | else | |
71 | read_inline_data(page, ipage); | |
72 | ||
73 | SetPageUptodate(page); | |
74 | f2fs_put_page(ipage, 1); | |
75 | unlock_page(page); | |
e18c65b2 HL |
76 | return 0; |
77 | } | |
78 | ||
b3d208f9 | 79 | int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page) |
e18c65b2 | 80 | { |
e18c65b2 | 81 | void *src_addr, *dst_addr; |
e18c65b2 HL |
82 | struct f2fs_io_info fio = { |
83 | .type = DATA, | |
84 | .rw = WRITE_SYNC | REQ_PRIO, | |
85 | }; | |
158c194c | 86 | int dirty, err; |
e18c65b2 | 87 | |
b3d208f9 | 88 | f2fs_bug_on(F2FS_I_SB(dn->inode), page->index); |
e18c65b2 | 89 | |
b3d208f9 JK |
90 | if (!f2fs_exist_data(dn->inode)) |
91 | goto clear_out; | |
ec4e7af4 | 92 | |
b3d208f9 | 93 | err = f2fs_reserve_block(dn, 0); |
15c6e3aa | 94 | if (err) |
b3d208f9 | 95 | return err; |
e18c65b2 | 96 | |
9ac1349a | 97 | f2fs_wait_on_page_writeback(page, DATA); |
b3d208f9 JK |
98 | |
99 | if (PageUptodate(page)) | |
100 | goto no_update; | |
101 | ||
18309aaa | 102 | zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE); |
e18c65b2 HL |
103 | |
104 | /* Copy the whole inline data block */ | |
b3d208f9 | 105 | src_addr = inline_data_addr(dn->inode_page); |
f1e33a04 | 106 | dst_addr = kmap_atomic(page); |
e18c65b2 | 107 | memcpy(dst_addr, src_addr, MAX_INLINE_DATA); |
09b8b3c8 | 108 | flush_dcache_page(page); |
f1e33a04 | 109 | kunmap_atomic(dst_addr); |
9e09fc85 | 110 | SetPageUptodate(page); |
b3d208f9 | 111 | no_update: |
158c194c JK |
112 | /* clear dirty state */ |
113 | dirty = clear_page_dirty_for_io(page); | |
114 | ||
e18c65b2 HL |
115 | /* write data page to try to make data consistent */ |
116 | set_page_writeback(page); | |
cf04e8eb JK |
117 | fio.blk_addr = dn->data_blkaddr; |
118 | write_data_page(page, dn, &fio); | |
e1509cf2 | 119 | update_extent_cache(dn); |
5514f0aa | 120 | f2fs_wait_on_page_writeback(page, DATA); |
158c194c JK |
121 | if (dirty) |
122 | inode_dec_dirty_pages(dn->inode); | |
e18c65b2 | 123 | |
95f5b0fc JK |
124 | /* this converted inline_data should be recovered. */ |
125 | set_inode_flag(F2FS_I(dn->inode), FI_APPEND_WRITE); | |
126 | ||
e18c65b2 | 127 | /* clear inline data and flag after data writeback */ |
b3d208f9 JK |
128 | truncate_inline_data(dn->inode_page, 0); |
129 | clear_out: | |
b3d208f9 | 130 | stat_dec_inline_inode(dn->inode); |
57e2a2c0 | 131 | f2fs_clear_inline_inode(dn->inode); |
b3d208f9 JK |
132 | sync_inode_page(dn); |
133 | f2fs_put_dnode(dn); | |
134 | return 0; | |
e18c65b2 HL |
135 | } |
136 | ||
b3d208f9 | 137 | int f2fs_convert_inline_inode(struct inode *inode) |
e18c65b2 | 138 | { |
b3d208f9 JK |
139 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
140 | struct dnode_of_data dn; | |
141 | struct page *ipage, *page; | |
142 | int err = 0; | |
e18c65b2 | 143 | |
b3d208f9 JK |
144 | page = grab_cache_page(inode->i_mapping, 0); |
145 | if (!page) | |
146 | return -ENOMEM; | |
e18c65b2 | 147 | |
b3d208f9 JK |
148 | f2fs_lock_op(sbi); |
149 | ||
150 | ipage = get_node_page(sbi, inode->i_ino); | |
151 | if (IS_ERR(ipage)) { | |
6d20aff8 JK |
152 | err = PTR_ERR(ipage); |
153 | goto out; | |
b067ba1f | 154 | } |
e18c65b2 | 155 | |
b3d208f9 JK |
156 | set_new_dnode(&dn, inode, ipage, ipage, 0); |
157 | ||
158 | if (f2fs_has_inline_data(inode)) | |
159 | err = f2fs_convert_inline_page(&dn, page); | |
160 | ||
161 | f2fs_put_dnode(&dn); | |
6d20aff8 | 162 | out: |
b3d208f9 JK |
163 | f2fs_unlock_op(sbi); |
164 | ||
165 | f2fs_put_page(page, 1); | |
e18c65b2 HL |
166 | return err; |
167 | } | |
168 | ||
b3d208f9 | 169 | int f2fs_write_inline_data(struct inode *inode, struct page *page) |
e18c65b2 HL |
170 | { |
171 | void *src_addr, *dst_addr; | |
e18c65b2 HL |
172 | struct dnode_of_data dn; |
173 | int err; | |
174 | ||
175 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
176 | err = get_dnode_of_data(&dn, 0, LOOKUP_NODE); | |
177 | if (err) | |
178 | return err; | |
e18c65b2 | 179 | |
c08a690b | 180 | if (!f2fs_has_inline_data(inode)) { |
b3d208f9 JK |
181 | f2fs_put_dnode(&dn); |
182 | return -EAGAIN; | |
c08a690b JK |
183 | } |
184 | ||
b3d208f9 JK |
185 | f2fs_bug_on(F2FS_I_SB(inode), page->index); |
186 | ||
187 | f2fs_wait_on_page_writeback(dn.inode_page, NODE); | |
f1e33a04 | 188 | src_addr = kmap_atomic(page); |
b3d208f9 JK |
189 | dst_addr = inline_data_addr(dn.inode_page); |
190 | memcpy(dst_addr, src_addr, MAX_INLINE_DATA); | |
f1e33a04 | 191 | kunmap_atomic(src_addr); |
e18c65b2 | 192 | |
fff04f90 | 193 | set_inode_flag(F2FS_I(inode), FI_APPEND_WRITE); |
b3d208f9 JK |
194 | set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); |
195 | ||
e18c65b2 HL |
196 | sync_inode_page(&dn); |
197 | f2fs_put_dnode(&dn); | |
e18c65b2 HL |
198 | return 0; |
199 | } | |
1e1bb4ba | 200 | |
b3d208f9 | 201 | void truncate_inline_data(struct page *ipage, u64 from) |
8aa6f1c5 | 202 | { |
b3d208f9 | 203 | void *addr; |
8aa6f1c5 CY |
204 | |
205 | if (from >= MAX_INLINE_DATA) | |
206 | return; | |
207 | ||
54b591df JK |
208 | f2fs_wait_on_page_writeback(ipage, NODE); |
209 | ||
b3d208f9 JK |
210 | addr = inline_data_addr(ipage); |
211 | memset(addr + from, 0, MAX_INLINE_DATA - from); | |
8aa6f1c5 CY |
212 | } |
213 | ||
0342fd30 | 214 | bool recover_inline_data(struct inode *inode, struct page *npage) |
1e1bb4ba | 215 | { |
4081363f | 216 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1e1bb4ba JK |
217 | struct f2fs_inode *ri = NULL; |
218 | void *src_addr, *dst_addr; | |
219 | struct page *ipage; | |
220 | ||
221 | /* | |
222 | * The inline_data recovery policy is as follows. | |
223 | * [prev.] [next] of inline_data flag | |
224 | * o o -> recover inline_data | |
225 | * o x -> remove inline_data, and then recover data blocks | |
226 | * x o -> remove inline_data, and then recover inline_data | |
227 | * x x -> recover data blocks | |
228 | */ | |
229 | if (IS_INODE(npage)) | |
230 | ri = F2FS_INODE(npage); | |
231 | ||
232 | if (f2fs_has_inline_data(inode) && | |
0342fd30 | 233 | ri && (ri->i_inline & F2FS_INLINE_DATA)) { |
1e1bb4ba JK |
234 | process_inline: |
235 | ipage = get_node_page(sbi, inode->i_ino); | |
9850cf4a | 236 | f2fs_bug_on(sbi, IS_ERR(ipage)); |
1e1bb4ba | 237 | |
54b591df JK |
238 | f2fs_wait_on_page_writeback(ipage, NODE); |
239 | ||
1e1bb4ba JK |
240 | src_addr = inline_data_addr(npage); |
241 | dst_addr = inline_data_addr(ipage); | |
242 | memcpy(dst_addr, src_addr, MAX_INLINE_DATA); | |
b3d208f9 JK |
243 | |
244 | set_inode_flag(F2FS_I(inode), FI_INLINE_DATA); | |
245 | set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); | |
246 | ||
1e1bb4ba JK |
247 | update_inode(inode, ipage); |
248 | f2fs_put_page(ipage, 1); | |
0342fd30 | 249 | return true; |
1e1bb4ba JK |
250 | } |
251 | ||
252 | if (f2fs_has_inline_data(inode)) { | |
253 | ipage = get_node_page(sbi, inode->i_ino); | |
9850cf4a | 254 | f2fs_bug_on(sbi, IS_ERR(ipage)); |
b3d208f9 JK |
255 | truncate_inline_data(ipage, 0); |
256 | f2fs_clear_inline_inode(inode); | |
1e1bb4ba JK |
257 | update_inode(inode, ipage); |
258 | f2fs_put_page(ipage, 1); | |
0342fd30 | 259 | } else if (ri && (ri->i_inline & F2FS_INLINE_DATA)) { |
764aa3e9 | 260 | truncate_blocks(inode, 0, false); |
1e1bb4ba JK |
261 | goto process_inline; |
262 | } | |
0342fd30 | 263 | return false; |
1e1bb4ba | 264 | } |
201a05be CY |
265 | |
266 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir, | |
267 | struct qstr *name, struct page **res_page) | |
268 | { | |
269 | struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); | |
4e6ebf6d | 270 | struct f2fs_inline_dentry *inline_dentry; |
201a05be | 271 | struct f2fs_dir_entry *de; |
7b3cd7d6 | 272 | struct f2fs_dentry_ptr d; |
4e6ebf6d | 273 | struct page *ipage; |
201a05be CY |
274 | |
275 | ipage = get_node_page(sbi, dir->i_ino); | |
276 | if (IS_ERR(ipage)) | |
277 | return NULL; | |
278 | ||
4e6ebf6d | 279 | inline_dentry = inline_data_addr(ipage); |
201a05be | 280 | |
7b3cd7d6 JK |
281 | make_dentry_ptr(&d, (void *)inline_dentry, 2); |
282 | de = find_target_dentry(name, NULL, &d); | |
283 | ||
201a05be | 284 | unlock_page(ipage); |
4e6ebf6d JK |
285 | if (de) |
286 | *res_page = ipage; | |
287 | else | |
288 | f2fs_put_page(ipage, 0); | |
289 | ||
290 | /* | |
291 | * For the most part, it should be a bug when name_len is zero. | |
292 | * We stop here for figuring out where the bugs has occurred. | |
293 | */ | |
7b3cd7d6 | 294 | f2fs_bug_on(sbi, d.max < 0); |
201a05be CY |
295 | return de; |
296 | } | |
297 | ||
298 | struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *dir, | |
299 | struct page **p) | |
300 | { | |
301 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); | |
302 | struct page *ipage; | |
303 | struct f2fs_dir_entry *de; | |
304 | struct f2fs_inline_dentry *dentry_blk; | |
305 | ||
306 | ipage = get_node_page(sbi, dir->i_ino); | |
307 | if (IS_ERR(ipage)) | |
308 | return NULL; | |
309 | ||
310 | dentry_blk = inline_data_addr(ipage); | |
311 | de = &dentry_blk->dentry[1]; | |
312 | *p = ipage; | |
313 | unlock_page(ipage); | |
314 | return de; | |
315 | } | |
316 | ||
317 | int make_empty_inline_dir(struct inode *inode, struct inode *parent, | |
318 | struct page *ipage) | |
319 | { | |
320 | struct f2fs_inline_dentry *dentry_blk; | |
062a3e7b | 321 | struct f2fs_dentry_ptr d; |
201a05be CY |
322 | |
323 | dentry_blk = inline_data_addr(ipage); | |
324 | ||
062a3e7b JK |
325 | make_dentry_ptr(&d, (void *)dentry_blk, 2); |
326 | do_make_empty_dir(inode, parent, &d); | |
201a05be CY |
327 | |
328 | set_page_dirty(ipage); | |
329 | ||
330 | /* update i_size to MAX_INLINE_DATA */ | |
331 | if (i_size_read(inode) < MAX_INLINE_DATA) { | |
332 | i_size_write(inode, MAX_INLINE_DATA); | |
333 | set_inode_flag(F2FS_I(inode), FI_UPDATE_DIR); | |
334 | } | |
335 | return 0; | |
336 | } | |
337 | ||
d64948a4 | 338 | static int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage, |
201a05be CY |
339 | struct f2fs_inline_dentry *inline_dentry) |
340 | { | |
341 | struct page *page; | |
342 | struct dnode_of_data dn; | |
343 | struct f2fs_dentry_block *dentry_blk; | |
344 | int err; | |
345 | ||
346 | page = grab_cache_page(dir->i_mapping, 0); | |
347 | if (!page) | |
348 | return -ENOMEM; | |
349 | ||
350 | set_new_dnode(&dn, dir, ipage, NULL, 0); | |
351 | err = f2fs_reserve_block(&dn, 0); | |
352 | if (err) | |
353 | goto out; | |
354 | ||
355 | f2fs_wait_on_page_writeback(page, DATA); | |
356 | zero_user_segment(page, 0, PAGE_CACHE_SIZE); | |
357 | ||
f1e33a04 | 358 | dentry_blk = kmap_atomic(page); |
201a05be CY |
359 | |
360 | /* copy data from inline dentry block to new dentry block */ | |
361 | memcpy(dentry_blk->dentry_bitmap, inline_dentry->dentry_bitmap, | |
362 | INLINE_DENTRY_BITMAP_SIZE); | |
363 | memcpy(dentry_blk->dentry, inline_dentry->dentry, | |
364 | sizeof(struct f2fs_dir_entry) * NR_INLINE_DENTRY); | |
365 | memcpy(dentry_blk->filename, inline_dentry->filename, | |
366 | NR_INLINE_DENTRY * F2FS_SLOT_LEN); | |
367 | ||
f1e33a04 | 368 | kunmap_atomic(dentry_blk); |
201a05be CY |
369 | SetPageUptodate(page); |
370 | set_page_dirty(page); | |
371 | ||
372 | /* clear inline dir and flag after data writeback */ | |
b3d208f9 JK |
373 | truncate_inline_data(ipage, 0); |
374 | ||
3289c061 | 375 | stat_dec_inline_dir(dir); |
622f28ae | 376 | clear_inode_flag(F2FS_I(dir), FI_INLINE_DENTRY); |
201a05be CY |
377 | |
378 | if (i_size_read(dir) < PAGE_CACHE_SIZE) { | |
379 | i_size_write(dir, PAGE_CACHE_SIZE); | |
380 | set_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); | |
381 | } | |
382 | ||
383 | sync_inode_page(&dn); | |
384 | out: | |
385 | f2fs_put_page(page, 1); | |
386 | return err; | |
387 | } | |
388 | ||
389 | int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, | |
390 | struct inode *inode) | |
391 | { | |
392 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); | |
393 | struct page *ipage; | |
394 | unsigned int bit_pos; | |
395 | f2fs_hash_t name_hash; | |
396 | struct f2fs_dir_entry *de; | |
397 | size_t namelen = name->len; | |
398 | struct f2fs_inline_dentry *dentry_blk = NULL; | |
399 | int slots = GET_DENTRY_SLOTS(namelen); | |
400 | struct page *page; | |
401 | int err = 0; | |
402 | int i; | |
403 | ||
404 | name_hash = f2fs_dentry_hash(name); | |
405 | ||
406 | ipage = get_node_page(sbi, dir->i_ino); | |
407 | if (IS_ERR(ipage)) | |
408 | return PTR_ERR(ipage); | |
409 | ||
410 | dentry_blk = inline_data_addr(ipage); | |
a82afa20 JK |
411 | bit_pos = room_for_filename(&dentry_blk->dentry_bitmap, |
412 | slots, NR_INLINE_DENTRY); | |
201a05be CY |
413 | if (bit_pos >= NR_INLINE_DENTRY) { |
414 | err = f2fs_convert_inline_dir(dir, ipage, dentry_blk); | |
415 | if (!err) | |
416 | err = -EAGAIN; | |
417 | goto out; | |
418 | } | |
419 | ||
201a05be | 420 | down_write(&F2FS_I(inode)->i_sem); |
bce8d112 | 421 | page = init_inode_metadata(inode, dir, name, ipage); |
201a05be CY |
422 | if (IS_ERR(page)) { |
423 | err = PTR_ERR(page); | |
424 | goto fail; | |
425 | } | |
bce8d112 JK |
426 | |
427 | f2fs_wait_on_page_writeback(ipage, NODE); | |
201a05be CY |
428 | de = &dentry_blk->dentry[bit_pos]; |
429 | de->hash_code = name_hash; | |
430 | de->name_len = cpu_to_le16(namelen); | |
431 | memcpy(dentry_blk->filename[bit_pos], name->name, name->len); | |
432 | de->ino = cpu_to_le32(inode->i_ino); | |
433 | set_de_type(de, inode); | |
434 | for (i = 0; i < slots; i++) | |
435 | test_and_set_bit_le(bit_pos + i, &dentry_blk->dentry_bitmap); | |
436 | set_page_dirty(ipage); | |
437 | ||
438 | /* we don't need to mark_inode_dirty now */ | |
439 | F2FS_I(inode)->i_pino = dir->i_ino; | |
440 | update_inode(inode, page); | |
441 | f2fs_put_page(page, 1); | |
442 | ||
443 | update_parent_metadata(dir, inode, 0); | |
444 | fail: | |
445 | up_write(&F2FS_I(inode)->i_sem); | |
446 | ||
447 | if (is_inode_flag_set(F2FS_I(dir), FI_UPDATE_DIR)) { | |
448 | update_inode(dir, ipage); | |
449 | clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); | |
450 | } | |
451 | out: | |
452 | f2fs_put_page(ipage, 1); | |
453 | return err; | |
454 | } | |
455 | ||
456 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page, | |
457 | struct inode *dir, struct inode *inode) | |
458 | { | |
459 | struct f2fs_inline_dentry *inline_dentry; | |
460 | int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len)); | |
461 | unsigned int bit_pos; | |
462 | int i; | |
463 | ||
464 | lock_page(page); | |
59a06155 | 465 | f2fs_wait_on_page_writeback(page, NODE); |
201a05be CY |
466 | |
467 | inline_dentry = inline_data_addr(page); | |
468 | bit_pos = dentry - inline_dentry->dentry; | |
469 | for (i = 0; i < slots; i++) | |
470 | test_and_clear_bit_le(bit_pos + i, | |
471 | &inline_dentry->dentry_bitmap); | |
472 | ||
473 | set_page_dirty(page); | |
474 | ||
475 | dir->i_ctime = dir->i_mtime = CURRENT_TIME; | |
476 | ||
477 | if (inode) | |
478 | f2fs_drop_nlink(dir, inode, page); | |
479 | ||
480 | f2fs_put_page(page, 1); | |
481 | } | |
482 | ||
483 | bool f2fs_empty_inline_dir(struct inode *dir) | |
484 | { | |
485 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); | |
486 | struct page *ipage; | |
487 | unsigned int bit_pos = 2; | |
488 | struct f2fs_inline_dentry *dentry_blk; | |
489 | ||
490 | ipage = get_node_page(sbi, dir->i_ino); | |
491 | if (IS_ERR(ipage)) | |
492 | return false; | |
493 | ||
494 | dentry_blk = inline_data_addr(ipage); | |
495 | bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, | |
496 | NR_INLINE_DENTRY, | |
497 | bit_pos); | |
498 | ||
499 | f2fs_put_page(ipage, 1); | |
500 | ||
501 | if (bit_pos < NR_INLINE_DENTRY) | |
502 | return false; | |
503 | ||
504 | return true; | |
505 | } | |
506 | ||
507 | int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx) | |
508 | { | |
509 | struct inode *inode = file_inode(file); | |
201a05be | 510 | struct f2fs_inline_dentry *inline_dentry = NULL; |
201a05be | 511 | struct page *ipage = NULL; |
7b3cd7d6 | 512 | struct f2fs_dentry_ptr d; |
201a05be CY |
513 | |
514 | if (ctx->pos == NR_INLINE_DENTRY) | |
515 | return 0; | |
516 | ||
38594de7 | 517 | ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino); |
201a05be CY |
518 | if (IS_ERR(ipage)) |
519 | return PTR_ERR(ipage); | |
520 | ||
201a05be | 521 | inline_dentry = inline_data_addr(ipage); |
201a05be | 522 | |
7b3cd7d6 JK |
523 | make_dentry_ptr(&d, (void *)inline_dentry, 2); |
524 | ||
525 | if (!f2fs_fill_dentries(ctx, &d, 0)) | |
38594de7 | 526 | ctx->pos = NR_INLINE_DENTRY; |
201a05be | 527 | |
38594de7 | 528 | f2fs_put_page(ipage, 1); |
201a05be CY |
529 | return 0; |
530 | } |