Commit | Line | Data |
---|---|---|
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 | ||
368a0e40 | 24 | if (!S_ISREG(inode->i_mode) && !S_ISLNK(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 | ||
0bfcfcca | 53 | bool truncate_inline_inode(struct page *ipage, u64 from) |
feeb0deb | 54 | { |
0bfcfcca CY |
55 | void *addr; |
56 | ||
0bfcfcca CY |
57 | if (from >= MAX_INLINE_DATA) |
58 | return false; | |
59 | ||
60 | addr = inline_data_addr(ipage); | |
61 | ||
feeb0deb | 62 | f2fs_wait_on_page_writeback(ipage, NODE); |
0bfcfcca CY |
63 | memset(addr + from, 0, MAX_INLINE_DATA - from); |
64 | ||
65 | return true; | |
feeb0deb CY |
66 | } |
67 | ||
b3d208f9 JK |
68 | int f2fs_read_inline_data(struct inode *inode, struct page *page) |
69 | { | |
70 | struct page *ipage; | |
71 | ||
72 | ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino); | |
73 | if (IS_ERR(ipage)) { | |
74 | unlock_page(page); | |
75 | return PTR_ERR(ipage); | |
76 | } | |
e18c65b2 | 77 | |
b3d208f9 JK |
78 | if (!f2fs_has_inline_data(inode)) { |
79 | f2fs_put_page(ipage, 1); | |
80 | return -EAGAIN; | |
81 | } | |
82 | ||
83 | if (page->index) | |
84 | zero_user_segment(page, 0, PAGE_CACHE_SIZE); | |
85 | else | |
86 | read_inline_data(page, ipage); | |
87 | ||
88 | SetPageUptodate(page); | |
89 | f2fs_put_page(ipage, 1); | |
90 | unlock_page(page); | |
e18c65b2 HL |
91 | return 0; |
92 | } | |
93 | ||
b3d208f9 | 94 | int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page) |
e18c65b2 | 95 | { |
e18c65b2 | 96 | void *src_addr, *dst_addr; |
e18c65b2 HL |
97 | struct f2fs_io_info fio = { |
98 | .type = DATA, | |
99 | .rw = WRITE_SYNC | REQ_PRIO, | |
100 | }; | |
158c194c | 101 | int dirty, err; |
e18c65b2 | 102 | |
b3d208f9 | 103 | f2fs_bug_on(F2FS_I_SB(dn->inode), page->index); |
e18c65b2 | 104 | |
b3d208f9 JK |
105 | if (!f2fs_exist_data(dn->inode)) |
106 | goto clear_out; | |
ec4e7af4 | 107 | |
b3d208f9 | 108 | err = f2fs_reserve_block(dn, 0); |
15c6e3aa | 109 | if (err) |
b3d208f9 | 110 | return err; |
e18c65b2 | 111 | |
9ac1349a | 112 | f2fs_wait_on_page_writeback(page, DATA); |
b3d208f9 JK |
113 | |
114 | if (PageUptodate(page)) | |
115 | goto no_update; | |
116 | ||
18309aaa | 117 | zero_user_segment(page, MAX_INLINE_DATA, PAGE_CACHE_SIZE); |
e18c65b2 HL |
118 | |
119 | /* Copy the whole inline data block */ | |
b3d208f9 | 120 | src_addr = inline_data_addr(dn->inode_page); |
f1e33a04 | 121 | dst_addr = kmap_atomic(page); |
e18c65b2 | 122 | memcpy(dst_addr, src_addr, MAX_INLINE_DATA); |
09b8b3c8 | 123 | flush_dcache_page(page); |
f1e33a04 | 124 | kunmap_atomic(dst_addr); |
9e09fc85 | 125 | SetPageUptodate(page); |
b3d208f9 | 126 | no_update: |
158c194c JK |
127 | /* clear dirty state */ |
128 | dirty = clear_page_dirty_for_io(page); | |
129 | ||
e18c65b2 HL |
130 | /* write data page to try to make data consistent */ |
131 | set_page_writeback(page); | |
cf04e8eb JK |
132 | fio.blk_addr = dn->data_blkaddr; |
133 | write_data_page(page, dn, &fio); | |
216a620a | 134 | set_data_blkaddr(dn); |
7e4dde79 | 135 | f2fs_update_extent_cache(dn); |
5514f0aa | 136 | f2fs_wait_on_page_writeback(page, DATA); |
158c194c JK |
137 | if (dirty) |
138 | inode_dec_dirty_pages(dn->inode); | |
e18c65b2 | 139 | |
95f5b0fc JK |
140 | /* this converted inline_data should be recovered. */ |
141 | set_inode_flag(F2FS_I(dn->inode), FI_APPEND_WRITE); | |
142 | ||
e18c65b2 | 143 | /* clear inline data and flag after data writeback */ |
0bfcfcca | 144 | truncate_inline_inode(dn->inode_page, 0); |
b3d208f9 | 145 | clear_out: |
b3d208f9 | 146 | stat_dec_inline_inode(dn->inode); |
57e2a2c0 | 147 | f2fs_clear_inline_inode(dn->inode); |
b3d208f9 JK |
148 | sync_inode_page(dn); |
149 | f2fs_put_dnode(dn); | |
150 | return 0; | |
e18c65b2 HL |
151 | } |
152 | ||
b3d208f9 | 153 | int f2fs_convert_inline_inode(struct inode *inode) |
e18c65b2 | 154 | { |
b3d208f9 JK |
155 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
156 | struct dnode_of_data dn; | |
157 | struct page *ipage, *page; | |
158 | int err = 0; | |
e18c65b2 | 159 | |
b3d208f9 JK |
160 | page = grab_cache_page(inode->i_mapping, 0); |
161 | if (!page) | |
162 | return -ENOMEM; | |
e18c65b2 | 163 | |
b3d208f9 JK |
164 | f2fs_lock_op(sbi); |
165 | ||
166 | ipage = get_node_page(sbi, inode->i_ino); | |
167 | if (IS_ERR(ipage)) { | |
6d20aff8 JK |
168 | err = PTR_ERR(ipage); |
169 | goto out; | |
b067ba1f | 170 | } |
e18c65b2 | 171 | |
b3d208f9 JK |
172 | set_new_dnode(&dn, inode, ipage, ipage, 0); |
173 | ||
174 | if (f2fs_has_inline_data(inode)) | |
175 | err = f2fs_convert_inline_page(&dn, page); | |
176 | ||
177 | f2fs_put_dnode(&dn); | |
6d20aff8 | 178 | out: |
b3d208f9 JK |
179 | f2fs_unlock_op(sbi); |
180 | ||
181 | f2fs_put_page(page, 1); | |
e18c65b2 HL |
182 | return err; |
183 | } | |
184 | ||
b3d208f9 | 185 | int f2fs_write_inline_data(struct inode *inode, struct page *page) |
e18c65b2 HL |
186 | { |
187 | void *src_addr, *dst_addr; | |
e18c65b2 HL |
188 | struct dnode_of_data dn; |
189 | int err; | |
190 | ||
191 | set_new_dnode(&dn, inode, NULL, NULL, 0); | |
192 | err = get_dnode_of_data(&dn, 0, LOOKUP_NODE); | |
193 | if (err) | |
194 | return err; | |
e18c65b2 | 195 | |
c08a690b | 196 | if (!f2fs_has_inline_data(inode)) { |
b3d208f9 JK |
197 | f2fs_put_dnode(&dn); |
198 | return -EAGAIN; | |
c08a690b JK |
199 | } |
200 | ||
b3d208f9 JK |
201 | f2fs_bug_on(F2FS_I_SB(inode), page->index); |
202 | ||
203 | f2fs_wait_on_page_writeback(dn.inode_page, NODE); | |
f1e33a04 | 204 | src_addr = kmap_atomic(page); |
b3d208f9 JK |
205 | dst_addr = inline_data_addr(dn.inode_page); |
206 | memcpy(dst_addr, src_addr, MAX_INLINE_DATA); | |
f1e33a04 | 207 | kunmap_atomic(src_addr); |
e18c65b2 | 208 | |
fff04f90 | 209 | set_inode_flag(F2FS_I(inode), FI_APPEND_WRITE); |
b3d208f9 JK |
210 | set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); |
211 | ||
e18c65b2 HL |
212 | sync_inode_page(&dn); |
213 | f2fs_put_dnode(&dn); | |
e18c65b2 HL |
214 | return 0; |
215 | } | |
1e1bb4ba | 216 | |
0342fd30 | 217 | bool recover_inline_data(struct inode *inode, struct page *npage) |
1e1bb4ba | 218 | { |
4081363f | 219 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
1e1bb4ba JK |
220 | struct f2fs_inode *ri = NULL; |
221 | void *src_addr, *dst_addr; | |
222 | struct page *ipage; | |
223 | ||
224 | /* | |
225 | * The inline_data recovery policy is as follows. | |
226 | * [prev.] [next] of inline_data flag | |
227 | * o o -> recover inline_data | |
228 | * o x -> remove inline_data, and then recover data blocks | |
229 | * x o -> remove inline_data, and then recover inline_data | |
230 | * x x -> recover data blocks | |
231 | */ | |
232 | if (IS_INODE(npage)) | |
233 | ri = F2FS_INODE(npage); | |
234 | ||
235 | if (f2fs_has_inline_data(inode) && | |
0342fd30 | 236 | ri && (ri->i_inline & F2FS_INLINE_DATA)) { |
1e1bb4ba JK |
237 | process_inline: |
238 | ipage = get_node_page(sbi, inode->i_ino); | |
9850cf4a | 239 | f2fs_bug_on(sbi, IS_ERR(ipage)); |
1e1bb4ba | 240 | |
54b591df JK |
241 | f2fs_wait_on_page_writeback(ipage, NODE); |
242 | ||
1e1bb4ba JK |
243 | src_addr = inline_data_addr(npage); |
244 | dst_addr = inline_data_addr(ipage); | |
245 | memcpy(dst_addr, src_addr, MAX_INLINE_DATA); | |
b3d208f9 JK |
246 | |
247 | set_inode_flag(F2FS_I(inode), FI_INLINE_DATA); | |
248 | set_inode_flag(F2FS_I(inode), FI_DATA_EXIST); | |
249 | ||
1e1bb4ba JK |
250 | update_inode(inode, ipage); |
251 | f2fs_put_page(ipage, 1); | |
0342fd30 | 252 | return true; |
1e1bb4ba JK |
253 | } |
254 | ||
255 | if (f2fs_has_inline_data(inode)) { | |
256 | ipage = get_node_page(sbi, inode->i_ino); | |
9850cf4a | 257 | f2fs_bug_on(sbi, IS_ERR(ipage)); |
0bfcfcca | 258 | truncate_inline_inode(ipage, 0); |
b3d208f9 | 259 | f2fs_clear_inline_inode(inode); |
1e1bb4ba JK |
260 | update_inode(inode, ipage); |
261 | f2fs_put_page(ipage, 1); | |
0342fd30 | 262 | } else if (ri && (ri->i_inline & F2FS_INLINE_DATA)) { |
764aa3e9 | 263 | truncate_blocks(inode, 0, false); |
1e1bb4ba JK |
264 | goto process_inline; |
265 | } | |
0342fd30 | 266 | return false; |
1e1bb4ba | 267 | } |
201a05be CY |
268 | |
269 | struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir, | |
270 | struct qstr *name, struct page **res_page) | |
271 | { | |
272 | struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); | |
4e6ebf6d | 273 | struct f2fs_inline_dentry *inline_dentry; |
201a05be | 274 | struct f2fs_dir_entry *de; |
7b3cd7d6 | 275 | struct f2fs_dentry_ptr d; |
4e6ebf6d | 276 | struct page *ipage; |
201a05be CY |
277 | |
278 | ipage = get_node_page(sbi, dir->i_ino); | |
279 | if (IS_ERR(ipage)) | |
280 | return NULL; | |
281 | ||
4e6ebf6d | 282 | inline_dentry = inline_data_addr(ipage); |
201a05be | 283 | |
7b3cd7d6 JK |
284 | make_dentry_ptr(&d, (void *)inline_dentry, 2); |
285 | de = find_target_dentry(name, NULL, &d); | |
286 | ||
201a05be | 287 | unlock_page(ipage); |
4e6ebf6d JK |
288 | if (de) |
289 | *res_page = ipage; | |
290 | else | |
291 | f2fs_put_page(ipage, 0); | |
292 | ||
293 | /* | |
294 | * For the most part, it should be a bug when name_len is zero. | |
295 | * We stop here for figuring out where the bugs has occurred. | |
296 | */ | |
7b3cd7d6 | 297 | f2fs_bug_on(sbi, d.max < 0); |
201a05be CY |
298 | return de; |
299 | } | |
300 | ||
301 | struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *dir, | |
302 | struct page **p) | |
303 | { | |
304 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); | |
305 | struct page *ipage; | |
306 | struct f2fs_dir_entry *de; | |
307 | struct f2fs_inline_dentry *dentry_blk; | |
308 | ||
309 | ipage = get_node_page(sbi, dir->i_ino); | |
310 | if (IS_ERR(ipage)) | |
311 | return NULL; | |
312 | ||
313 | dentry_blk = inline_data_addr(ipage); | |
314 | de = &dentry_blk->dentry[1]; | |
315 | *p = ipage; | |
316 | unlock_page(ipage); | |
317 | return de; | |
318 | } | |
319 | ||
320 | int make_empty_inline_dir(struct inode *inode, struct inode *parent, | |
321 | struct page *ipage) | |
322 | { | |
323 | struct f2fs_inline_dentry *dentry_blk; | |
062a3e7b | 324 | struct f2fs_dentry_ptr d; |
201a05be CY |
325 | |
326 | dentry_blk = inline_data_addr(ipage); | |
327 | ||
062a3e7b JK |
328 | make_dentry_ptr(&d, (void *)dentry_blk, 2); |
329 | do_make_empty_dir(inode, parent, &d); | |
201a05be CY |
330 | |
331 | set_page_dirty(ipage); | |
332 | ||
333 | /* update i_size to MAX_INLINE_DATA */ | |
334 | if (i_size_read(inode) < MAX_INLINE_DATA) { | |
335 | i_size_write(inode, MAX_INLINE_DATA); | |
336 | set_inode_flag(F2FS_I(inode), FI_UPDATE_DIR); | |
337 | } | |
338 | return 0; | |
339 | } | |
340 | ||
d64948a4 | 341 | static int f2fs_convert_inline_dir(struct inode *dir, struct page *ipage, |
201a05be CY |
342 | struct f2fs_inline_dentry *inline_dentry) |
343 | { | |
344 | struct page *page; | |
345 | struct dnode_of_data dn; | |
346 | struct f2fs_dentry_block *dentry_blk; | |
347 | int err; | |
348 | ||
349 | page = grab_cache_page(dir->i_mapping, 0); | |
350 | if (!page) | |
351 | return -ENOMEM; | |
352 | ||
353 | set_new_dnode(&dn, dir, ipage, NULL, 0); | |
354 | err = f2fs_reserve_block(&dn, 0); | |
355 | if (err) | |
356 | goto out; | |
357 | ||
358 | f2fs_wait_on_page_writeback(page, DATA); | |
359 | zero_user_segment(page, 0, PAGE_CACHE_SIZE); | |
360 | ||
f1e33a04 | 361 | dentry_blk = kmap_atomic(page); |
201a05be CY |
362 | |
363 | /* copy data from inline dentry block to new dentry block */ | |
364 | memcpy(dentry_blk->dentry_bitmap, inline_dentry->dentry_bitmap, | |
365 | INLINE_DENTRY_BITMAP_SIZE); | |
366 | memcpy(dentry_blk->dentry, inline_dentry->dentry, | |
367 | sizeof(struct f2fs_dir_entry) * NR_INLINE_DENTRY); | |
368 | memcpy(dentry_blk->filename, inline_dentry->filename, | |
369 | NR_INLINE_DENTRY * F2FS_SLOT_LEN); | |
370 | ||
f1e33a04 | 371 | kunmap_atomic(dentry_blk); |
201a05be CY |
372 | SetPageUptodate(page); |
373 | set_page_dirty(page); | |
374 | ||
375 | /* clear inline dir and flag after data writeback */ | |
0bfcfcca | 376 | truncate_inline_inode(ipage, 0); |
b3d208f9 | 377 | |
3289c061 | 378 | stat_dec_inline_dir(dir); |
622f28ae | 379 | clear_inode_flag(F2FS_I(dir), FI_INLINE_DENTRY); |
201a05be CY |
380 | |
381 | if (i_size_read(dir) < PAGE_CACHE_SIZE) { | |
382 | i_size_write(dir, PAGE_CACHE_SIZE); | |
383 | set_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); | |
384 | } | |
385 | ||
386 | sync_inode_page(&dn); | |
387 | out: | |
388 | f2fs_put_page(page, 1); | |
389 | return err; | |
390 | } | |
391 | ||
392 | int f2fs_add_inline_entry(struct inode *dir, const struct qstr *name, | |
393 | struct inode *inode) | |
394 | { | |
395 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); | |
396 | struct page *ipage; | |
397 | unsigned int bit_pos; | |
398 | f2fs_hash_t name_hash; | |
201a05be CY |
399 | size_t namelen = name->len; |
400 | struct f2fs_inline_dentry *dentry_blk = NULL; | |
3b4d732a | 401 | struct f2fs_dentry_ptr d; |
201a05be CY |
402 | int slots = GET_DENTRY_SLOTS(namelen); |
403 | struct page *page; | |
404 | int err = 0; | |
201a05be CY |
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); | |
3b4d732a CY |
428 | |
429 | name_hash = f2fs_dentry_hash(name); | |
430 | make_dentry_ptr(&d, (void *)dentry_blk, 2); | |
431 | f2fs_update_dentry(inode, &d, name, name_hash, bit_pos); | |
432 | ||
201a05be CY |
433 | set_page_dirty(ipage); |
434 | ||
435 | /* we don't need to mark_inode_dirty now */ | |
436 | F2FS_I(inode)->i_pino = dir->i_ino; | |
437 | update_inode(inode, page); | |
438 | f2fs_put_page(page, 1); | |
439 | ||
440 | update_parent_metadata(dir, inode, 0); | |
441 | fail: | |
442 | up_write(&F2FS_I(inode)->i_sem); | |
443 | ||
444 | if (is_inode_flag_set(F2FS_I(dir), FI_UPDATE_DIR)) { | |
445 | update_inode(dir, ipage); | |
446 | clear_inode_flag(F2FS_I(dir), FI_UPDATE_DIR); | |
447 | } | |
448 | out: | |
449 | f2fs_put_page(ipage, 1); | |
450 | return err; | |
451 | } | |
452 | ||
453 | void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page, | |
454 | struct inode *dir, struct inode *inode) | |
455 | { | |
456 | struct f2fs_inline_dentry *inline_dentry; | |
457 | int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len)); | |
458 | unsigned int bit_pos; | |
459 | int i; | |
460 | ||
461 | lock_page(page); | |
59a06155 | 462 | f2fs_wait_on_page_writeback(page, NODE); |
201a05be CY |
463 | |
464 | inline_dentry = inline_data_addr(page); | |
465 | bit_pos = dentry - inline_dentry->dentry; | |
466 | for (i = 0; i < slots; i++) | |
467 | test_and_clear_bit_le(bit_pos + i, | |
468 | &inline_dentry->dentry_bitmap); | |
469 | ||
470 | set_page_dirty(page); | |
471 | ||
472 | dir->i_ctime = dir->i_mtime = CURRENT_TIME; | |
473 | ||
474 | if (inode) | |
475 | f2fs_drop_nlink(dir, inode, page); | |
476 | ||
477 | f2fs_put_page(page, 1); | |
478 | } | |
479 | ||
480 | bool f2fs_empty_inline_dir(struct inode *dir) | |
481 | { | |
482 | struct f2fs_sb_info *sbi = F2FS_I_SB(dir); | |
483 | struct page *ipage; | |
484 | unsigned int bit_pos = 2; | |
485 | struct f2fs_inline_dentry *dentry_blk; | |
486 | ||
487 | ipage = get_node_page(sbi, dir->i_ino); | |
488 | if (IS_ERR(ipage)) | |
489 | return false; | |
490 | ||
491 | dentry_blk = inline_data_addr(ipage); | |
492 | bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, | |
493 | NR_INLINE_DENTRY, | |
494 | bit_pos); | |
495 | ||
496 | f2fs_put_page(ipage, 1); | |
497 | ||
498 | if (bit_pos < NR_INLINE_DENTRY) | |
499 | return false; | |
500 | ||
501 | return true; | |
502 | } | |
503 | ||
504 | int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx) | |
505 | { | |
506 | struct inode *inode = file_inode(file); | |
201a05be | 507 | struct f2fs_inline_dentry *inline_dentry = NULL; |
201a05be | 508 | struct page *ipage = NULL; |
7b3cd7d6 | 509 | struct f2fs_dentry_ptr d; |
201a05be CY |
510 | |
511 | if (ctx->pos == NR_INLINE_DENTRY) | |
512 | return 0; | |
513 | ||
38594de7 | 514 | ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino); |
201a05be CY |
515 | if (IS_ERR(ipage)) |
516 | return PTR_ERR(ipage); | |
517 | ||
201a05be | 518 | inline_dentry = inline_data_addr(ipage); |
201a05be | 519 | |
7b3cd7d6 JK |
520 | make_dentry_ptr(&d, (void *)inline_dentry, 2); |
521 | ||
522 | if (!f2fs_fill_dentries(ctx, &d, 0)) | |
38594de7 | 523 | ctx->pos = NR_INLINE_DENTRY; |
201a05be | 524 | |
38594de7 | 525 | f2fs_put_page(ipage, 1); |
201a05be CY |
526 | return 0; |
527 | } |