Commit | Line | Data |
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7c1a000d | 1 | // SPDX-License-Identifier: GPL-2.0 |
0a8165d7 | 2 | /* |
e05df3b1 JK |
3 | * fs/f2fs/node.c |
4 | * | |
5 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
6 | * http://www.samsung.com/ | |
e05df3b1 JK |
7 | */ |
8 | #include <linux/fs.h> | |
9 | #include <linux/f2fs_fs.h> | |
10 | #include <linux/mpage.h> | |
4034247a | 11 | #include <linux/sched/mm.h> |
e05df3b1 JK |
12 | #include <linux/blkdev.h> |
13 | #include <linux/pagevec.h> | |
14 | #include <linux/swap.h> | |
15 | ||
16 | #include "f2fs.h" | |
17 | #include "node.h" | |
18 | #include "segment.h" | |
87905682 | 19 | #include "xattr.h" |
52118743 | 20 | #include "iostat.h" |
51dd6249 | 21 | #include <trace/events/f2fs.h> |
e05df3b1 | 22 | |
4d57b86d | 23 | #define on_f2fs_build_free_nids(nmi) mutex_is_locked(&(nm_i)->build_lock) |
f978f5a0 | 24 | |
e05df3b1 JK |
25 | static struct kmem_cache *nat_entry_slab; |
26 | static struct kmem_cache *free_nid_slab; | |
aec71382 | 27 | static struct kmem_cache *nat_entry_set_slab; |
50fa53ec | 28 | static struct kmem_cache *fsync_node_entry_slab; |
e05df3b1 | 29 | |
a4f843bd JK |
30 | /* |
31 | * Check whether the given nid is within node id range. | |
32 | */ | |
4d57b86d | 33 | int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) |
a4f843bd JK |
34 | { |
35 | if (unlikely(nid < F2FS_ROOT_INO(sbi) || nid >= NM_I(sbi)->max_nid)) { | |
36 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
dcbb4c10 JP |
37 | f2fs_warn(sbi, "%s: out-of-range nid=%x, run fsck to fix.", |
38 | __func__, nid); | |
95fa90c9 | 39 | f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE); |
10f966bb | 40 | return -EFSCORRUPTED; |
a4f843bd JK |
41 | } |
42 | return 0; | |
43 | } | |
44 | ||
4d57b86d | 45 | bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type) |
cdfc41c1 | 46 | { |
6fb03f3a | 47 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
d6d2b491 | 48 | struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info; |
cdfc41c1 | 49 | struct sysinfo val; |
e5e7ea3c | 50 | unsigned long avail_ram; |
cdfc41c1 | 51 | unsigned long mem_size = 0; |
6fb03f3a | 52 | bool res = false; |
cdfc41c1 | 53 | |
d6d2b491 ST |
54 | if (!nm_i) |
55 | return true; | |
56 | ||
cdfc41c1 | 57 | si_meminfo(&val); |
e5e7ea3c JK |
58 | |
59 | /* only uses low memory */ | |
60 | avail_ram = val.totalram - val.totalhigh; | |
61 | ||
429511cd | 62 | /* |
71644dff | 63 | * give 25%, 25%, 50%, 50%, 25%, 25% memory for each components respectively |
429511cd | 64 | */ |
6fb03f3a | 65 | if (type == FREE_NIDS) { |
9a4ffdf5 | 66 | mem_size = (nm_i->nid_cnt[FREE_NID] * |
b8559dc2 | 67 | sizeof(struct free_nid)) >> PAGE_SHIFT; |
e5e7ea3c | 68 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); |
6fb03f3a | 69 | } else if (type == NAT_ENTRIES) { |
a95ba66a JK |
70 | mem_size = (nm_i->nat_cnt[TOTAL_NAT] * |
71 | sizeof(struct nat_entry)) >> PAGE_SHIFT; | |
e5e7ea3c | 72 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); |
e589c2c4 JK |
73 | if (excess_cached_nats(sbi)) |
74 | res = false; | |
a1257023 JK |
75 | } else if (type == DIRTY_DENTS) { |
76 | if (sbi->sb->s_bdi->wb.dirty_exceeded) | |
77 | return false; | |
78 | mem_size = get_pages(sbi, F2FS_DIRTY_DENTS); | |
79 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); | |
e5e7ea3c JK |
80 | } else if (type == INO_ENTRIES) { |
81 | int i; | |
82 | ||
39d787be | 83 | for (i = 0; i < MAX_INO_ENTRY; i++) |
8f73cbb7 KM |
84 | mem_size += sbi->im[i].ino_num * |
85 | sizeof(struct ino_entry); | |
86 | mem_size >>= PAGE_SHIFT; | |
e5e7ea3c | 87 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); |
71644dff JK |
88 | } else if (type == READ_EXTENT_CACHE || type == AGE_EXTENT_CACHE) { |
89 | enum extent_type etype = type == READ_EXTENT_CACHE ? | |
90 | EX_READ : EX_BLOCK_AGE; | |
91 | struct extent_tree_info *eti = &sbi->extent_tree[etype]; | |
e7547dac JK |
92 | |
93 | mem_size = (atomic_read(&eti->total_ext_tree) * | |
7441ccef | 94 | sizeof(struct extent_tree) + |
e7547dac | 95 | atomic_read(&eti->total_ext_node) * |
09cbfeaf | 96 | sizeof(struct extent_node)) >> PAGE_SHIFT; |
71644dff | 97 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); |
d6d2b491 ST |
98 | } else if (type == DISCARD_CACHE) { |
99 | mem_size = (atomic_read(&dcc->discard_cmd_cnt) * | |
100 | sizeof(struct discard_cmd)) >> PAGE_SHIFT; | |
101 | res = mem_size < (avail_ram * nm_i->ram_thresh / 100); | |
6ce19aff CY |
102 | } else if (type == COMPRESS_PAGE) { |
103 | #ifdef CONFIG_F2FS_FS_COMPRESSION | |
104 | unsigned long free_ram = val.freeram; | |
105 | ||
106 | /* | |
107 | * free memory is lower than watermark or cached page count | |
108 | * exceed threshold, deny caching compress page. | |
109 | */ | |
110 | res = (free_ram > avail_ram * sbi->compress_watermark / 100) && | |
111 | (COMPRESS_MAPPING(sbi)->nrpages < | |
112 | free_ram * sbi->compress_percent / 100); | |
113 | #else | |
114 | res = false; | |
115 | #endif | |
1e84371f | 116 | } else { |
1663cae4 JK |
117 | if (!sbi->sb->s_bdi->wb.dirty_exceeded) |
118 | return true; | |
6fb03f3a JK |
119 | } |
120 | return res; | |
cdfc41c1 JK |
121 | } |
122 | ||
e05df3b1 JK |
123 | static void clear_node_page_dirty(struct page *page) |
124 | { | |
e05df3b1 | 125 | if (PageDirty(page)) { |
5ec2d99d | 126 | f2fs_clear_page_cache_dirty_tag(page); |
e05df3b1 | 127 | clear_page_dirty_for_io(page); |
aec2f729 | 128 | dec_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); |
e05df3b1 JK |
129 | } |
130 | ClearPageUptodate(page); | |
131 | } | |
132 | ||
133 | static struct page *get_current_nat_page(struct f2fs_sb_info *sbi, nid_t nid) | |
134 | { | |
3acc4522 | 135 | return f2fs_get_meta_page_retry(sbi, current_nat_addr(sbi, nid)); |
e05df3b1 JK |
136 | } |
137 | ||
138 | static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid) | |
139 | { | |
140 | struct page *src_page; | |
141 | struct page *dst_page; | |
e05df3b1 JK |
142 | pgoff_t dst_off; |
143 | void *src_addr; | |
144 | void *dst_addr; | |
145 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
146 | ||
80551d17 | 147 | dst_off = next_nat_addr(sbi, current_nat_addr(sbi, nid)); |
e05df3b1 JK |
148 | |
149 | /* get current nat block page with lock */ | |
80551d17 | 150 | src_page = get_current_nat_page(sbi, nid); |
edc55aaf JK |
151 | if (IS_ERR(src_page)) |
152 | return src_page; | |
4d57b86d | 153 | dst_page = f2fs_grab_meta_page(sbi, dst_off); |
9850cf4a | 154 | f2fs_bug_on(sbi, PageDirty(src_page)); |
e05df3b1 JK |
155 | |
156 | src_addr = page_address(src_page); | |
157 | dst_addr = page_address(dst_page); | |
09cbfeaf | 158 | memcpy(dst_addr, src_addr, PAGE_SIZE); |
e05df3b1 JK |
159 | set_page_dirty(dst_page); |
160 | f2fs_put_page(src_page, 1); | |
161 | ||
162 | set_to_next_nat(nm_i, nid); | |
163 | ||
164 | return dst_page; | |
165 | } | |
166 | ||
32410577 CY |
167 | static struct nat_entry *__alloc_nat_entry(struct f2fs_sb_info *sbi, |
168 | nid_t nid, bool no_fail) | |
12f9ef37 YH |
169 | { |
170 | struct nat_entry *new; | |
171 | ||
32410577 CY |
172 | new = f2fs_kmem_cache_alloc(nat_entry_slab, |
173 | GFP_F2FS_ZERO, no_fail, sbi); | |
12f9ef37 YH |
174 | if (new) { |
175 | nat_set_nid(new, nid); | |
176 | nat_reset_flag(new); | |
177 | } | |
178 | return new; | |
179 | } | |
180 | ||
181 | static void __free_nat_entry(struct nat_entry *e) | |
182 | { | |
183 | kmem_cache_free(nat_entry_slab, e); | |
184 | } | |
185 | ||
186 | /* must be locked by nat_tree_lock */ | |
187 | static struct nat_entry *__init_nat_entry(struct f2fs_nm_info *nm_i, | |
188 | struct nat_entry *ne, struct f2fs_nat_entry *raw_ne, bool no_fail) | |
189 | { | |
190 | if (no_fail) | |
191 | f2fs_radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne); | |
192 | else if (radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne)) | |
193 | return NULL; | |
194 | ||
195 | if (raw_ne) | |
196 | node_info_from_raw_nat(&ne->ni, raw_ne); | |
22969158 CY |
197 | |
198 | spin_lock(&nm_i->nat_list_lock); | |
12f9ef37 | 199 | list_add_tail(&ne->list, &nm_i->nat_entries); |
22969158 CY |
200 | spin_unlock(&nm_i->nat_list_lock); |
201 | ||
a95ba66a JK |
202 | nm_i->nat_cnt[TOTAL_NAT]++; |
203 | nm_i->nat_cnt[RECLAIMABLE_NAT]++; | |
12f9ef37 YH |
204 | return ne; |
205 | } | |
206 | ||
e05df3b1 JK |
207 | static struct nat_entry *__lookup_nat_cache(struct f2fs_nm_info *nm_i, nid_t n) |
208 | { | |
22969158 CY |
209 | struct nat_entry *ne; |
210 | ||
211 | ne = radix_tree_lookup(&nm_i->nat_root, n); | |
212 | ||
213 | /* for recent accessed nat entry, move it to tail of lru list */ | |
214 | if (ne && !get_nat_flag(ne, IS_DIRTY)) { | |
215 | spin_lock(&nm_i->nat_list_lock); | |
216 | if (!list_empty(&ne->list)) | |
217 | list_move_tail(&ne->list, &nm_i->nat_entries); | |
218 | spin_unlock(&nm_i->nat_list_lock); | |
219 | } | |
220 | ||
221 | return ne; | |
e05df3b1 JK |
222 | } |
223 | ||
224 | static unsigned int __gang_lookup_nat_cache(struct f2fs_nm_info *nm_i, | |
225 | nid_t start, unsigned int nr, struct nat_entry **ep) | |
226 | { | |
227 | return radix_tree_gang_lookup(&nm_i->nat_root, (void **)ep, start, nr); | |
228 | } | |
229 | ||
230 | static void __del_from_nat_cache(struct f2fs_nm_info *nm_i, struct nat_entry *e) | |
231 | { | |
e05df3b1 | 232 | radix_tree_delete(&nm_i->nat_root, nat_get_nid(e)); |
a95ba66a JK |
233 | nm_i->nat_cnt[TOTAL_NAT]--; |
234 | nm_i->nat_cnt[RECLAIMABLE_NAT]--; | |
12f9ef37 | 235 | __free_nat_entry(e); |
e05df3b1 JK |
236 | } |
237 | ||
780de47c CY |
238 | static struct nat_entry_set *__grab_nat_entry_set(struct f2fs_nm_info *nm_i, |
239 | struct nat_entry *ne) | |
309cc2b6 JK |
240 | { |
241 | nid_t set = NAT_BLOCK_OFFSET(ne->ni.nid); | |
242 | struct nat_entry_set *head; | |
243 | ||
309cc2b6 JK |
244 | head = radix_tree_lookup(&nm_i->nat_set_root, set); |
245 | if (!head) { | |
32410577 CY |
246 | head = f2fs_kmem_cache_alloc(nat_entry_set_slab, |
247 | GFP_NOFS, true, NULL); | |
309cc2b6 JK |
248 | |
249 | INIT_LIST_HEAD(&head->entry_list); | |
250 | INIT_LIST_HEAD(&head->set_list); | |
251 | head->set = set; | |
252 | head->entry_cnt = 0; | |
9be32d72 | 253 | f2fs_radix_tree_insert(&nm_i->nat_set_root, set, head); |
309cc2b6 | 254 | } |
780de47c CY |
255 | return head; |
256 | } | |
257 | ||
258 | static void __set_nat_cache_dirty(struct f2fs_nm_info *nm_i, | |
259 | struct nat_entry *ne) | |
260 | { | |
261 | struct nat_entry_set *head; | |
262 | bool new_ne = nat_get_blkaddr(ne) == NEW_ADDR; | |
263 | ||
264 | if (!new_ne) | |
265 | head = __grab_nat_entry_set(nm_i, ne); | |
266 | ||
267 | /* | |
268 | * update entry_cnt in below condition: | |
269 | * 1. update NEW_ADDR to valid block address; | |
270 | * 2. update old block address to new one; | |
271 | */ | |
272 | if (!new_ne && (get_nat_flag(ne, IS_PREALLOC) || | |
273 | !get_nat_flag(ne, IS_DIRTY))) | |
274 | head->entry_cnt++; | |
275 | ||
276 | set_nat_flag(ne, IS_PREALLOC, new_ne); | |
febeca6d CY |
277 | |
278 | if (get_nat_flag(ne, IS_DIRTY)) | |
279 | goto refresh_list; | |
280 | ||
a95ba66a JK |
281 | nm_i->nat_cnt[DIRTY_NAT]++; |
282 | nm_i->nat_cnt[RECLAIMABLE_NAT]--; | |
309cc2b6 | 283 | set_nat_flag(ne, IS_DIRTY, true); |
febeca6d | 284 | refresh_list: |
22969158 | 285 | spin_lock(&nm_i->nat_list_lock); |
780de47c | 286 | if (new_ne) |
febeca6d CY |
287 | list_del_init(&ne->list); |
288 | else | |
289 | list_move_tail(&ne->list, &head->entry_list); | |
22969158 | 290 | spin_unlock(&nm_i->nat_list_lock); |
309cc2b6 JK |
291 | } |
292 | ||
293 | static void __clear_nat_cache_dirty(struct f2fs_nm_info *nm_i, | |
0b28b71e | 294 | struct nat_entry_set *set, struct nat_entry *ne) |
309cc2b6 | 295 | { |
22969158 | 296 | spin_lock(&nm_i->nat_list_lock); |
0b28b71e | 297 | list_move_tail(&ne->list, &nm_i->nat_entries); |
22969158 CY |
298 | spin_unlock(&nm_i->nat_list_lock); |
299 | ||
0b28b71e KM |
300 | set_nat_flag(ne, IS_DIRTY, false); |
301 | set->entry_cnt--; | |
a95ba66a JK |
302 | nm_i->nat_cnt[DIRTY_NAT]--; |
303 | nm_i->nat_cnt[RECLAIMABLE_NAT]++; | |
309cc2b6 JK |
304 | } |
305 | ||
306 | static unsigned int __gang_lookup_nat_set(struct f2fs_nm_info *nm_i, | |
307 | nid_t start, unsigned int nr, struct nat_entry_set **ep) | |
308 | { | |
309 | return radix_tree_gang_lookup(&nm_i->nat_set_root, (void **)ep, | |
310 | start, nr); | |
311 | } | |
312 | ||
50fa53ec CY |
313 | bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page) |
314 | { | |
315 | return NODE_MAPPING(sbi) == page->mapping && | |
316 | IS_DNODE(page) && is_cold_node(page); | |
317 | } | |
318 | ||
319 | void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi) | |
320 | { | |
321 | spin_lock_init(&sbi->fsync_node_lock); | |
322 | INIT_LIST_HEAD(&sbi->fsync_node_list); | |
323 | sbi->fsync_seg_id = 0; | |
324 | sbi->fsync_node_num = 0; | |
325 | } | |
326 | ||
327 | static unsigned int f2fs_add_fsync_node_entry(struct f2fs_sb_info *sbi, | |
328 | struct page *page) | |
329 | { | |
330 | struct fsync_node_entry *fn; | |
331 | unsigned long flags; | |
332 | unsigned int seq_id; | |
333 | ||
32410577 CY |
334 | fn = f2fs_kmem_cache_alloc(fsync_node_entry_slab, |
335 | GFP_NOFS, true, NULL); | |
50fa53ec CY |
336 | |
337 | get_page(page); | |
338 | fn->page = page; | |
339 | INIT_LIST_HEAD(&fn->list); | |
340 | ||
341 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
342 | list_add_tail(&fn->list, &sbi->fsync_node_list); | |
343 | fn->seq_id = sbi->fsync_seg_id++; | |
344 | seq_id = fn->seq_id; | |
345 | sbi->fsync_node_num++; | |
346 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
347 | ||
348 | return seq_id; | |
349 | } | |
350 | ||
351 | void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page) | |
352 | { | |
353 | struct fsync_node_entry *fn; | |
354 | unsigned long flags; | |
355 | ||
356 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
357 | list_for_each_entry(fn, &sbi->fsync_node_list, list) { | |
358 | if (fn->page == page) { | |
359 | list_del(&fn->list); | |
360 | sbi->fsync_node_num--; | |
361 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
362 | kmem_cache_free(fsync_node_entry_slab, fn); | |
363 | put_page(page); | |
364 | return; | |
365 | } | |
366 | } | |
367 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
368 | f2fs_bug_on(sbi, 1); | |
369 | } | |
370 | ||
371 | void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi) | |
372 | { | |
373 | unsigned long flags; | |
374 | ||
375 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
376 | sbi->fsync_seg_id = 0; | |
377 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
378 | } | |
379 | ||
4d57b86d | 380 | int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 JK |
381 | { |
382 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
383 | struct nat_entry *e; | |
2dcf51ab | 384 | bool need = false; |
e05df3b1 | 385 | |
e4544b63 | 386 | f2fs_down_read(&nm_i->nat_tree_lock); |
e05df3b1 | 387 | e = __lookup_nat_cache(nm_i, nid); |
2dcf51ab JK |
388 | if (e) { |
389 | if (!get_nat_flag(e, IS_CHECKPOINTED) && | |
390 | !get_nat_flag(e, HAS_FSYNCED_INODE)) | |
391 | need = true; | |
392 | } | |
e4544b63 | 393 | f2fs_up_read(&nm_i->nat_tree_lock); |
2dcf51ab | 394 | return need; |
e05df3b1 JK |
395 | } |
396 | ||
4d57b86d | 397 | bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid) |
479f40c4 JK |
398 | { |
399 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
400 | struct nat_entry *e; | |
2dcf51ab | 401 | bool is_cp = true; |
479f40c4 | 402 | |
e4544b63 | 403 | f2fs_down_read(&nm_i->nat_tree_lock); |
2dcf51ab JK |
404 | e = __lookup_nat_cache(nm_i, nid); |
405 | if (e && !get_nat_flag(e, IS_CHECKPOINTED)) | |
406 | is_cp = false; | |
e4544b63 | 407 | f2fs_up_read(&nm_i->nat_tree_lock); |
2dcf51ab | 408 | return is_cp; |
479f40c4 JK |
409 | } |
410 | ||
4d57b86d | 411 | bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino) |
b6fe5873 JK |
412 | { |
413 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
414 | struct nat_entry *e; | |
88bd02c9 | 415 | bool need_update = true; |
b6fe5873 | 416 | |
e4544b63 | 417 | f2fs_down_read(&nm_i->nat_tree_lock); |
88bd02c9 JK |
418 | e = __lookup_nat_cache(nm_i, ino); |
419 | if (e && get_nat_flag(e, HAS_LAST_FSYNC) && | |
420 | (get_nat_flag(e, IS_CHECKPOINTED) || | |
421 | get_nat_flag(e, HAS_FSYNCED_INODE))) | |
422 | need_update = false; | |
e4544b63 | 423 | f2fs_up_read(&nm_i->nat_tree_lock); |
88bd02c9 | 424 | return need_update; |
b6fe5873 JK |
425 | } |
426 | ||
12f9ef37 | 427 | /* must be locked by nat_tree_lock */ |
1515aef0 | 428 | static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid, |
e05df3b1 JK |
429 | struct f2fs_nat_entry *ne) |
430 | { | |
1515aef0 | 431 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
12f9ef37 | 432 | struct nat_entry *new, *e; |
9be32d72 | 433 | |
0df035c7 | 434 | /* Let's mitigate lock contention of nat_tree_lock during checkpoint */ |
e4544b63 | 435 | if (f2fs_rwsem_is_locked(&sbi->cp_global_sem)) |
0df035c7 JK |
436 | return; |
437 | ||
32410577 | 438 | new = __alloc_nat_entry(sbi, nid, false); |
12f9ef37 YH |
439 | if (!new) |
440 | return; | |
441 | ||
e4544b63 | 442 | f2fs_down_write(&nm_i->nat_tree_lock); |
e05df3b1 | 443 | e = __lookup_nat_cache(nm_i, nid); |
12f9ef37 YH |
444 | if (!e) |
445 | e = __init_nat_entry(nm_i, new, ne, false); | |
446 | else | |
0c0b471e EB |
447 | f2fs_bug_on(sbi, nat_get_ino(e) != le32_to_cpu(ne->ino) || |
448 | nat_get_blkaddr(e) != | |
449 | le32_to_cpu(ne->block_addr) || | |
1515aef0 | 450 | nat_get_version(e) != ne->version); |
e4544b63 | 451 | f2fs_up_write(&nm_i->nat_tree_lock); |
12f9ef37 YH |
452 | if (e != new) |
453 | __free_nat_entry(new); | |
e05df3b1 JK |
454 | } |
455 | ||
456 | static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni, | |
479f40c4 | 457 | block_t new_blkaddr, bool fsync_done) |
e05df3b1 JK |
458 | { |
459 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
460 | struct nat_entry *e; | |
32410577 | 461 | struct nat_entry *new = __alloc_nat_entry(sbi, ni->nid, true); |
9be32d72 | 462 | |
e4544b63 | 463 | f2fs_down_write(&nm_i->nat_tree_lock); |
e05df3b1 JK |
464 | e = __lookup_nat_cache(nm_i, ni->nid); |
465 | if (!e) { | |
12f9ef37 | 466 | e = __init_nat_entry(nm_i, new, NULL, true); |
5c27f4ee | 467 | copy_node_info(&e->ni, ni); |
9850cf4a | 468 | f2fs_bug_on(sbi, ni->blk_addr == NEW_ADDR); |
e05df3b1 JK |
469 | } else if (new_blkaddr == NEW_ADDR) { |
470 | /* | |
471 | * when nid is reallocated, | |
472 | * previous nat entry can be remained in nat cache. | |
473 | * So, reinitialize it with new information. | |
474 | */ | |
5c27f4ee | 475 | copy_node_info(&e->ni, ni); |
9850cf4a | 476 | f2fs_bug_on(sbi, ni->blk_addr != NULL_ADDR); |
e05df3b1 | 477 | } |
12f9ef37 YH |
478 | /* let's free early to reduce memory consumption */ |
479 | if (e != new) | |
480 | __free_nat_entry(new); | |
e05df3b1 | 481 | |
e05df3b1 | 482 | /* sanity check */ |
9850cf4a JK |
483 | f2fs_bug_on(sbi, nat_get_blkaddr(e) != ni->blk_addr); |
484 | f2fs_bug_on(sbi, nat_get_blkaddr(e) == NULL_ADDR && | |
e05df3b1 | 485 | new_blkaddr == NULL_ADDR); |
9850cf4a | 486 | f2fs_bug_on(sbi, nat_get_blkaddr(e) == NEW_ADDR && |
e05df3b1 | 487 | new_blkaddr == NEW_ADDR); |
93770ab7 | 488 | f2fs_bug_on(sbi, __is_valid_data_blkaddr(nat_get_blkaddr(e)) && |
e05df3b1 JK |
489 | new_blkaddr == NEW_ADDR); |
490 | ||
e1c42045 | 491 | /* increment version no as node is removed */ |
e05df3b1 JK |
492 | if (nat_get_blkaddr(e) != NEW_ADDR && new_blkaddr == NULL_ADDR) { |
493 | unsigned char version = nat_get_version(e); | |
5f029c04 | 494 | |
e05df3b1 JK |
495 | nat_set_version(e, inc_node_version(version)); |
496 | } | |
497 | ||
498 | /* change address */ | |
499 | nat_set_blkaddr(e, new_blkaddr); | |
93770ab7 | 500 | if (!__is_valid_data_blkaddr(new_blkaddr)) |
88bd02c9 | 501 | set_nat_flag(e, IS_CHECKPOINTED, false); |
e05df3b1 | 502 | __set_nat_cache_dirty(nm_i, e); |
479f40c4 JK |
503 | |
504 | /* update fsync_mark if its inode nat entry is still alive */ | |
d5b692b7 CY |
505 | if (ni->nid != ni->ino) |
506 | e = __lookup_nat_cache(nm_i, ni->ino); | |
88bd02c9 JK |
507 | if (e) { |
508 | if (fsync_done && ni->nid == ni->ino) | |
509 | set_nat_flag(e, HAS_FSYNCED_INODE, true); | |
510 | set_nat_flag(e, HAS_LAST_FSYNC, fsync_done); | |
511 | } | |
e4544b63 | 512 | f2fs_up_write(&nm_i->nat_tree_lock); |
e05df3b1 JK |
513 | } |
514 | ||
4d57b86d | 515 | int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink) |
e05df3b1 JK |
516 | { |
517 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1b38dc8e | 518 | int nr = nr_shrink; |
e05df3b1 | 519 | |
e4544b63 | 520 | if (!f2fs_down_write_trylock(&nm_i->nat_tree_lock)) |
b873b798 | 521 | return 0; |
e05df3b1 | 522 | |
22969158 CY |
523 | spin_lock(&nm_i->nat_list_lock); |
524 | while (nr_shrink) { | |
e05df3b1 | 525 | struct nat_entry *ne; |
22969158 CY |
526 | |
527 | if (list_empty(&nm_i->nat_entries)) | |
528 | break; | |
529 | ||
e05df3b1 JK |
530 | ne = list_first_entry(&nm_i->nat_entries, |
531 | struct nat_entry, list); | |
22969158 CY |
532 | list_del(&ne->list); |
533 | spin_unlock(&nm_i->nat_list_lock); | |
534 | ||
e05df3b1 JK |
535 | __del_from_nat_cache(nm_i, ne); |
536 | nr_shrink--; | |
22969158 CY |
537 | |
538 | spin_lock(&nm_i->nat_list_lock); | |
e05df3b1 | 539 | } |
22969158 CY |
540 | spin_unlock(&nm_i->nat_list_lock); |
541 | ||
e4544b63 | 542 | f2fs_up_write(&nm_i->nat_tree_lock); |
1b38dc8e | 543 | return nr - nr_shrink; |
e05df3b1 JK |
544 | } |
545 | ||
7735730d | 546 | int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, |
a9419b63 | 547 | struct node_info *ni, bool checkpoint_context) |
e05df3b1 JK |
548 | { |
549 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
550 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 551 | struct f2fs_journal *journal = curseg->journal; |
e05df3b1 JK |
552 | nid_t start_nid = START_NID(nid); |
553 | struct f2fs_nat_block *nat_blk; | |
554 | struct page *page = NULL; | |
555 | struct f2fs_nat_entry ne; | |
556 | struct nat_entry *e; | |
66a82d1f | 557 | pgoff_t index; |
93770ab7 | 558 | block_t blkaddr; |
e05df3b1 JK |
559 | int i; |
560 | ||
561 | ni->nid = nid; | |
2eeb0dce | 562 | retry: |
e05df3b1 | 563 | /* Check nat cache */ |
e4544b63 | 564 | f2fs_down_read(&nm_i->nat_tree_lock); |
e05df3b1 JK |
565 | e = __lookup_nat_cache(nm_i, nid); |
566 | if (e) { | |
567 | ni->ino = nat_get_ino(e); | |
568 | ni->blk_addr = nat_get_blkaddr(e); | |
569 | ni->version = nat_get_version(e); | |
e4544b63 | 570 | f2fs_up_read(&nm_i->nat_tree_lock); |
7735730d | 571 | return 0; |
1515aef0 | 572 | } |
e05df3b1 | 573 | |
2eeb0dce JK |
574 | /* |
575 | * Check current segment summary by trying to grab journal_rwsem first. | |
576 | * This sem is on the critical path on the checkpoint requiring the above | |
577 | * nat_tree_lock. Therefore, we should retry, if we failed to grab here | |
578 | * while not bothering checkpoint. | |
579 | */ | |
e4544b63 | 580 | if (!f2fs_rwsem_is_locked(&sbi->cp_global_sem) || checkpoint_context) { |
2eeb0dce | 581 | down_read(&curseg->journal_rwsem); |
e4544b63 | 582 | } else if (f2fs_rwsem_is_contended(&nm_i->nat_tree_lock) || |
a9419b63 | 583 | !down_read_trylock(&curseg->journal_rwsem)) { |
e4544b63 | 584 | f2fs_up_read(&nm_i->nat_tree_lock); |
2eeb0dce JK |
585 | goto retry; |
586 | } | |
3547ea96 | 587 | |
4d57b86d | 588 | i = f2fs_lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0); |
e05df3b1 | 589 | if (i >= 0) { |
dfc08a12 | 590 | ne = nat_in_journal(journal, i); |
e05df3b1 JK |
591 | node_info_from_raw_nat(ni, &ne); |
592 | } | |
544b53da | 593 | up_read(&curseg->journal_rwsem); |
66a82d1f | 594 | if (i >= 0) { |
e4544b63 | 595 | f2fs_up_read(&nm_i->nat_tree_lock); |
e05df3b1 | 596 | goto cache; |
66a82d1f | 597 | } |
e05df3b1 JK |
598 | |
599 | /* Fill node_info from nat page */ | |
66a82d1f | 600 | index = current_nat_addr(sbi, nid); |
e4544b63 | 601 | f2fs_up_read(&nm_i->nat_tree_lock); |
66a82d1f | 602 | |
4d57b86d | 603 | page = f2fs_get_meta_page(sbi, index); |
7735730d CY |
604 | if (IS_ERR(page)) |
605 | return PTR_ERR(page); | |
606 | ||
e05df3b1 JK |
607 | nat_blk = (struct f2fs_nat_block *)page_address(page); |
608 | ne = nat_blk->entries[nid - start_nid]; | |
609 | node_info_from_raw_nat(ni, &ne); | |
610 | f2fs_put_page(page, 1); | |
611 | cache: | |
93770ab7 CY |
612 | blkaddr = le32_to_cpu(ne.block_addr); |
613 | if (__is_valid_data_blkaddr(blkaddr) && | |
614 | !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) | |
615 | return -EFAULT; | |
616 | ||
e05df3b1 | 617 | /* cache nat entry */ |
1515aef0 | 618 | cache_nat_entry(sbi, nid, &ne); |
7735730d | 619 | return 0; |
e05df3b1 JK |
620 | } |
621 | ||
79344efb JK |
622 | /* |
623 | * readahead MAX_RA_NODE number of node pages. | |
624 | */ | |
4d57b86d | 625 | static void f2fs_ra_node_pages(struct page *parent, int start, int n) |
79344efb JK |
626 | { |
627 | struct f2fs_sb_info *sbi = F2FS_P_SB(parent); | |
628 | struct blk_plug plug; | |
629 | int i, end; | |
630 | nid_t nid; | |
631 | ||
632 | blk_start_plug(&plug); | |
633 | ||
634 | /* Then, try readahead for siblings of the desired node */ | |
635 | end = start + n; | |
636 | end = min(end, NIDS_PER_BLOCK); | |
637 | for (i = start; i < end; i++) { | |
638 | nid = get_nid(parent, i, false); | |
4d57b86d | 639 | f2fs_ra_node_page(sbi, nid); |
79344efb JK |
640 | } |
641 | ||
642 | blk_finish_plug(&plug); | |
643 | } | |
644 | ||
4d57b86d | 645 | pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs) |
3cf45747 CY |
646 | { |
647 | const long direct_index = ADDRS_PER_INODE(dn->inode); | |
d02a6e61 CY |
648 | const long direct_blks = ADDRS_PER_BLOCK(dn->inode); |
649 | const long indirect_blks = ADDRS_PER_BLOCK(dn->inode) * NIDS_PER_BLOCK; | |
650 | unsigned int skipped_unit = ADDRS_PER_BLOCK(dn->inode); | |
3cf45747 CY |
651 | int cur_level = dn->cur_level; |
652 | int max_level = dn->max_level; | |
653 | pgoff_t base = 0; | |
654 | ||
655 | if (!dn->max_level) | |
656 | return pgofs + 1; | |
657 | ||
658 | while (max_level-- > cur_level) | |
659 | skipped_unit *= NIDS_PER_BLOCK; | |
660 | ||
661 | switch (dn->max_level) { | |
662 | case 3: | |
663 | base += 2 * indirect_blks; | |
df561f66 | 664 | fallthrough; |
3cf45747 CY |
665 | case 2: |
666 | base += 2 * direct_blks; | |
df561f66 | 667 | fallthrough; |
3cf45747 CY |
668 | case 1: |
669 | base += direct_index; | |
670 | break; | |
671 | default: | |
672 | f2fs_bug_on(F2FS_I_SB(dn->inode), 1); | |
673 | } | |
674 | ||
675 | return ((pgofs - base) / skipped_unit + 1) * skipped_unit + base; | |
676 | } | |
677 | ||
0a8165d7 | 678 | /* |
e05df3b1 JK |
679 | * The maximum depth is four. |
680 | * Offset[0] will have raw inode offset. | |
681 | */ | |
81ca7350 | 682 | static int get_node_path(struct inode *inode, long block, |
de93653f | 683 | int offset[4], unsigned int noffset[4]) |
e05df3b1 | 684 | { |
81ca7350 | 685 | const long direct_index = ADDRS_PER_INODE(inode); |
d02a6e61 | 686 | const long direct_blks = ADDRS_PER_BLOCK(inode); |
e05df3b1 | 687 | const long dptrs_per_blk = NIDS_PER_BLOCK; |
d02a6e61 | 688 | const long indirect_blks = ADDRS_PER_BLOCK(inode) * NIDS_PER_BLOCK; |
e05df3b1 JK |
689 | const long dindirect_blks = indirect_blks * NIDS_PER_BLOCK; |
690 | int n = 0; | |
691 | int level = 0; | |
692 | ||
693 | noffset[0] = 0; | |
694 | ||
695 | if (block < direct_index) { | |
25c0a6e5 | 696 | offset[n] = block; |
e05df3b1 JK |
697 | goto got; |
698 | } | |
699 | block -= direct_index; | |
700 | if (block < direct_blks) { | |
701 | offset[n++] = NODE_DIR1_BLOCK; | |
702 | noffset[n] = 1; | |
25c0a6e5 | 703 | offset[n] = block; |
e05df3b1 JK |
704 | level = 1; |
705 | goto got; | |
706 | } | |
707 | block -= direct_blks; | |
708 | if (block < direct_blks) { | |
709 | offset[n++] = NODE_DIR2_BLOCK; | |
710 | noffset[n] = 2; | |
25c0a6e5 | 711 | offset[n] = block; |
e05df3b1 JK |
712 | level = 1; |
713 | goto got; | |
714 | } | |
715 | block -= direct_blks; | |
716 | if (block < indirect_blks) { | |
717 | offset[n++] = NODE_IND1_BLOCK; | |
718 | noffset[n] = 3; | |
719 | offset[n++] = block / direct_blks; | |
720 | noffset[n] = 4 + offset[n - 1]; | |
25c0a6e5 | 721 | offset[n] = block % direct_blks; |
e05df3b1 JK |
722 | level = 2; |
723 | goto got; | |
724 | } | |
725 | block -= indirect_blks; | |
726 | if (block < indirect_blks) { | |
727 | offset[n++] = NODE_IND2_BLOCK; | |
728 | noffset[n] = 4 + dptrs_per_blk; | |
729 | offset[n++] = block / direct_blks; | |
730 | noffset[n] = 5 + dptrs_per_blk + offset[n - 1]; | |
25c0a6e5 | 731 | offset[n] = block % direct_blks; |
e05df3b1 JK |
732 | level = 2; |
733 | goto got; | |
734 | } | |
735 | block -= indirect_blks; | |
736 | if (block < dindirect_blks) { | |
737 | offset[n++] = NODE_DIND_BLOCK; | |
738 | noffset[n] = 5 + (dptrs_per_blk * 2); | |
739 | offset[n++] = block / indirect_blks; | |
740 | noffset[n] = 6 + (dptrs_per_blk * 2) + | |
741 | offset[n - 1] * (dptrs_per_blk + 1); | |
742 | offset[n++] = (block / direct_blks) % dptrs_per_blk; | |
743 | noffset[n] = 7 + (dptrs_per_blk * 2) + | |
744 | offset[n - 2] * (dptrs_per_blk + 1) + | |
745 | offset[n - 1]; | |
25c0a6e5 | 746 | offset[n] = block % direct_blks; |
e05df3b1 JK |
747 | level = 3; |
748 | goto got; | |
749 | } else { | |
adb6dc19 | 750 | return -E2BIG; |
e05df3b1 JK |
751 | } |
752 | got: | |
753 | return level; | |
754 | } | |
755 | ||
756 | /* | |
757 | * Caller should call f2fs_put_dnode(dn). | |
4f4124d0 | 758 | * Also, it should grab and release a rwsem by calling f2fs_lock_op() and |
7a88ddb5 | 759 | * f2fs_unlock_op() only if mode is set with ALLOC_NODE. |
e05df3b1 | 760 | */ |
4d57b86d | 761 | int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode) |
e05df3b1 | 762 | { |
4081363f | 763 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
e05df3b1 | 764 | struct page *npage[4]; |
f1a3b98e | 765 | struct page *parent = NULL; |
e05df3b1 JK |
766 | int offset[4]; |
767 | unsigned int noffset[4]; | |
768 | nid_t nids[4]; | |
3cf45747 | 769 | int level, i = 0; |
e05df3b1 JK |
770 | int err = 0; |
771 | ||
81ca7350 | 772 | level = get_node_path(dn->inode, index, offset, noffset); |
adb6dc19 JK |
773 | if (level < 0) |
774 | return level; | |
e05df3b1 JK |
775 | |
776 | nids[0] = dn->inode->i_ino; | |
1646cfac | 777 | npage[0] = dn->inode_page; |
e05df3b1 | 778 | |
1646cfac | 779 | if (!npage[0]) { |
4d57b86d | 780 | npage[0] = f2fs_get_node_page(sbi, nids[0]); |
1646cfac JK |
781 | if (IS_ERR(npage[0])) |
782 | return PTR_ERR(npage[0]); | |
783 | } | |
f1a3b98e JK |
784 | |
785 | /* if inline_data is set, should not report any block indices */ | |
786 | if (f2fs_has_inline_data(dn->inode) && index) { | |
76629165 | 787 | err = -ENOENT; |
f1a3b98e JK |
788 | f2fs_put_page(npage[0], 1); |
789 | goto release_out; | |
790 | } | |
791 | ||
e05df3b1 | 792 | parent = npage[0]; |
52c2db3f CL |
793 | if (level != 0) |
794 | nids[1] = get_nid(parent, offset[0], true); | |
e05df3b1 JK |
795 | dn->inode_page = npage[0]; |
796 | dn->inode_page_locked = true; | |
797 | ||
798 | /* get indirect or direct nodes */ | |
799 | for (i = 1; i <= level; i++) { | |
800 | bool done = false; | |
801 | ||
266e97a8 | 802 | if (!nids[i] && mode == ALLOC_NODE) { |
e05df3b1 | 803 | /* alloc new node */ |
4d57b86d | 804 | if (!f2fs_alloc_nid(sbi, &(nids[i]))) { |
e05df3b1 JK |
805 | err = -ENOSPC; |
806 | goto release_pages; | |
807 | } | |
808 | ||
809 | dn->nid = nids[i]; | |
4d57b86d | 810 | npage[i] = f2fs_new_node_page(dn, noffset[i]); |
e05df3b1 | 811 | if (IS_ERR(npage[i])) { |
4d57b86d | 812 | f2fs_alloc_nid_failed(sbi, nids[i]); |
e05df3b1 JK |
813 | err = PTR_ERR(npage[i]); |
814 | goto release_pages; | |
815 | } | |
816 | ||
817 | set_nid(parent, offset[i - 1], nids[i], i == 1); | |
4d57b86d | 818 | f2fs_alloc_nid_done(sbi, nids[i]); |
e05df3b1 | 819 | done = true; |
266e97a8 | 820 | } else if (mode == LOOKUP_NODE_RA && i == level && level > 1) { |
4d57b86d | 821 | npage[i] = f2fs_get_node_page_ra(parent, offset[i - 1]); |
e05df3b1 JK |
822 | if (IS_ERR(npage[i])) { |
823 | err = PTR_ERR(npage[i]); | |
824 | goto release_pages; | |
825 | } | |
826 | done = true; | |
827 | } | |
828 | if (i == 1) { | |
829 | dn->inode_page_locked = false; | |
830 | unlock_page(parent); | |
831 | } else { | |
832 | f2fs_put_page(parent, 1); | |
833 | } | |
834 | ||
835 | if (!done) { | |
4d57b86d | 836 | npage[i] = f2fs_get_node_page(sbi, nids[i]); |
e05df3b1 JK |
837 | if (IS_ERR(npage[i])) { |
838 | err = PTR_ERR(npage[i]); | |
839 | f2fs_put_page(npage[0], 0); | |
840 | goto release_out; | |
841 | } | |
842 | } | |
843 | if (i < level) { | |
844 | parent = npage[i]; | |
845 | nids[i + 1] = get_nid(parent, offset[i], false); | |
846 | } | |
847 | } | |
848 | dn->nid = nids[level]; | |
849 | dn->ofs_in_node = offset[level]; | |
850 | dn->node_page = npage[level]; | |
a2ced1ce | 851 | dn->data_blkaddr = f2fs_data_blkaddr(dn); |
94afd6d6 CY |
852 | |
853 | if (is_inode_flag_set(dn->inode, FI_COMPRESSED_FILE) && | |
854 | f2fs_sb_has_readonly(sbi)) { | |
855 | unsigned int c_len = f2fs_cluster_blocks_are_contiguous(dn); | |
856 | block_t blkaddr; | |
857 | ||
858 | if (!c_len) | |
859 | goto out; | |
860 | ||
861 | blkaddr = f2fs_data_blkaddr(dn); | |
862 | if (blkaddr == COMPRESS_ADDR) | |
863 | blkaddr = data_blkaddr(dn->inode, dn->node_page, | |
864 | dn->ofs_in_node + 1); | |
865 | ||
e7547dac | 866 | f2fs_update_read_extent_tree_range_compressed(dn->inode, |
94afd6d6 CY |
867 | index, blkaddr, |
868 | F2FS_I(dn->inode)->i_cluster_size, | |
869 | c_len); | |
870 | } | |
871 | out: | |
e05df3b1 JK |
872 | return 0; |
873 | ||
874 | release_pages: | |
875 | f2fs_put_page(parent, 1); | |
876 | if (i > 1) | |
877 | f2fs_put_page(npage[0], 0); | |
878 | release_out: | |
879 | dn->inode_page = NULL; | |
880 | dn->node_page = NULL; | |
3cf45747 CY |
881 | if (err == -ENOENT) { |
882 | dn->cur_level = i; | |
883 | dn->max_level = level; | |
0a2aa8fb | 884 | dn->ofs_in_node = offset[level]; |
3cf45747 | 885 | } |
e05df3b1 JK |
886 | return err; |
887 | } | |
888 | ||
7735730d | 889 | static int truncate_node(struct dnode_of_data *dn) |
e05df3b1 | 890 | { |
4081363f | 891 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
e05df3b1 | 892 | struct node_info ni; |
7735730d | 893 | int err; |
0ea295dd | 894 | pgoff_t index; |
e05df3b1 | 895 | |
a9419b63 | 896 | err = f2fs_get_node_info(sbi, dn->nid, &ni, false); |
7735730d CY |
897 | if (err) |
898 | return err; | |
e05df3b1 | 899 | |
e05df3b1 | 900 | /* Deallocate node address */ |
4d57b86d | 901 | f2fs_invalidate_blocks(sbi, ni.blk_addr); |
000519f2 | 902 | dec_valid_node_count(sbi, dn->inode, dn->nid == dn->inode->i_ino); |
479f40c4 | 903 | set_node_addr(sbi, &ni, NULL_ADDR, false); |
e05df3b1 JK |
904 | |
905 | if (dn->nid == dn->inode->i_ino) { | |
4d57b86d | 906 | f2fs_remove_orphan_inode(sbi, dn->nid); |
e05df3b1 | 907 | dec_valid_inode_count(sbi); |
0f18b462 | 908 | f2fs_inode_synced(dn->inode); |
e05df3b1 | 909 | } |
000519f2 | 910 | |
e05df3b1 | 911 | clear_node_page_dirty(dn->node_page); |
caf0047e | 912 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
e05df3b1 | 913 | |
0ea295dd | 914 | index = dn->node_page->index; |
e05df3b1 | 915 | f2fs_put_page(dn->node_page, 1); |
bf39c00a JK |
916 | |
917 | invalidate_mapping_pages(NODE_MAPPING(sbi), | |
0ea295dd | 918 | index, index); |
bf39c00a | 919 | |
e05df3b1 | 920 | dn->node_page = NULL; |
51dd6249 | 921 | trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr); |
7735730d CY |
922 | |
923 | return 0; | |
e05df3b1 JK |
924 | } |
925 | ||
926 | static int truncate_dnode(struct dnode_of_data *dn) | |
927 | { | |
e05df3b1 | 928 | struct page *page; |
7735730d | 929 | int err; |
e05df3b1 JK |
930 | |
931 | if (dn->nid == 0) | |
932 | return 1; | |
933 | ||
934 | /* get direct node */ | |
4d57b86d | 935 | page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); |
45586c70 | 936 | if (PTR_ERR(page) == -ENOENT) |
e05df3b1 JK |
937 | return 1; |
938 | else if (IS_ERR(page)) | |
939 | return PTR_ERR(page); | |
940 | ||
941 | /* Make dnode_of_data for parameter */ | |
942 | dn->node_page = page; | |
943 | dn->ofs_in_node = 0; | |
4d57b86d | 944 | f2fs_truncate_data_blocks(dn); |
7735730d CY |
945 | err = truncate_node(dn); |
946 | if (err) | |
947 | return err; | |
948 | ||
e05df3b1 JK |
949 | return 1; |
950 | } | |
951 | ||
952 | static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs, | |
953 | int ofs, int depth) | |
954 | { | |
e05df3b1 JK |
955 | struct dnode_of_data rdn = *dn; |
956 | struct page *page; | |
957 | struct f2fs_node *rn; | |
958 | nid_t child_nid; | |
959 | unsigned int child_nofs; | |
960 | int freed = 0; | |
961 | int i, ret; | |
962 | ||
963 | if (dn->nid == 0) | |
964 | return NIDS_PER_BLOCK + 1; | |
965 | ||
51dd6249 NJ |
966 | trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr); |
967 | ||
4d57b86d | 968 | page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); |
51dd6249 NJ |
969 | if (IS_ERR(page)) { |
970 | trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page)); | |
e05df3b1 | 971 | return PTR_ERR(page); |
51dd6249 | 972 | } |
e05df3b1 | 973 | |
4d57b86d | 974 | f2fs_ra_node_pages(page, ofs, NIDS_PER_BLOCK); |
79344efb | 975 | |
45590710 | 976 | rn = F2FS_NODE(page); |
e05df3b1 JK |
977 | if (depth < 3) { |
978 | for (i = ofs; i < NIDS_PER_BLOCK; i++, freed++) { | |
979 | child_nid = le32_to_cpu(rn->in.nid[i]); | |
980 | if (child_nid == 0) | |
981 | continue; | |
982 | rdn.nid = child_nid; | |
983 | ret = truncate_dnode(&rdn); | |
984 | if (ret < 0) | |
985 | goto out_err; | |
12719ae1 JK |
986 | if (set_nid(page, i, 0, false)) |
987 | dn->node_changed = true; | |
e05df3b1 JK |
988 | } |
989 | } else { | |
990 | child_nofs = nofs + ofs * (NIDS_PER_BLOCK + 1) + 1; | |
991 | for (i = ofs; i < NIDS_PER_BLOCK; i++) { | |
992 | child_nid = le32_to_cpu(rn->in.nid[i]); | |
993 | if (child_nid == 0) { | |
994 | child_nofs += NIDS_PER_BLOCK + 1; | |
995 | continue; | |
996 | } | |
997 | rdn.nid = child_nid; | |
998 | ret = truncate_nodes(&rdn, child_nofs, 0, depth - 1); | |
999 | if (ret == (NIDS_PER_BLOCK + 1)) { | |
12719ae1 JK |
1000 | if (set_nid(page, i, 0, false)) |
1001 | dn->node_changed = true; | |
e05df3b1 JK |
1002 | child_nofs += ret; |
1003 | } else if (ret < 0 && ret != -ENOENT) { | |
1004 | goto out_err; | |
1005 | } | |
1006 | } | |
1007 | freed = child_nofs; | |
1008 | } | |
1009 | ||
1010 | if (!ofs) { | |
1011 | /* remove current indirect node */ | |
1012 | dn->node_page = page; | |
7735730d CY |
1013 | ret = truncate_node(dn); |
1014 | if (ret) | |
1015 | goto out_err; | |
e05df3b1 JK |
1016 | freed++; |
1017 | } else { | |
1018 | f2fs_put_page(page, 1); | |
1019 | } | |
51dd6249 | 1020 | trace_f2fs_truncate_nodes_exit(dn->inode, freed); |
e05df3b1 JK |
1021 | return freed; |
1022 | ||
1023 | out_err: | |
1024 | f2fs_put_page(page, 1); | |
51dd6249 | 1025 | trace_f2fs_truncate_nodes_exit(dn->inode, ret); |
e05df3b1 JK |
1026 | return ret; |
1027 | } | |
1028 | ||
1029 | static int truncate_partial_nodes(struct dnode_of_data *dn, | |
1030 | struct f2fs_inode *ri, int *offset, int depth) | |
1031 | { | |
e05df3b1 JK |
1032 | struct page *pages[2]; |
1033 | nid_t nid[3]; | |
1034 | nid_t child_nid; | |
1035 | int err = 0; | |
1036 | int i; | |
1037 | int idx = depth - 2; | |
1038 | ||
1039 | nid[0] = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); | |
1040 | if (!nid[0]) | |
1041 | return 0; | |
1042 | ||
1043 | /* get indirect nodes in the path */ | |
a225dca3 | 1044 | for (i = 0; i < idx + 1; i++) { |
e1c42045 | 1045 | /* reference count'll be increased */ |
4d57b86d | 1046 | pages[i] = f2fs_get_node_page(F2FS_I_SB(dn->inode), nid[i]); |
e05df3b1 | 1047 | if (IS_ERR(pages[i])) { |
e05df3b1 | 1048 | err = PTR_ERR(pages[i]); |
a225dca3 | 1049 | idx = i - 1; |
e05df3b1 JK |
1050 | goto fail; |
1051 | } | |
1052 | nid[i + 1] = get_nid(pages[i], offset[i + 1], false); | |
1053 | } | |
1054 | ||
4d57b86d | 1055 | f2fs_ra_node_pages(pages[idx], offset[idx + 1], NIDS_PER_BLOCK); |
79344efb | 1056 | |
e05df3b1 | 1057 | /* free direct nodes linked to a partial indirect node */ |
a225dca3 | 1058 | for (i = offset[idx + 1]; i < NIDS_PER_BLOCK; i++) { |
e05df3b1 JK |
1059 | child_nid = get_nid(pages[idx], i, false); |
1060 | if (!child_nid) | |
1061 | continue; | |
1062 | dn->nid = child_nid; | |
1063 | err = truncate_dnode(dn); | |
1064 | if (err < 0) | |
1065 | goto fail; | |
12719ae1 JK |
1066 | if (set_nid(pages[idx], i, 0, false)) |
1067 | dn->node_changed = true; | |
e05df3b1 JK |
1068 | } |
1069 | ||
a225dca3 | 1070 | if (offset[idx + 1] == 0) { |
e05df3b1 JK |
1071 | dn->node_page = pages[idx]; |
1072 | dn->nid = nid[idx]; | |
7735730d CY |
1073 | err = truncate_node(dn); |
1074 | if (err) | |
1075 | goto fail; | |
e05df3b1 JK |
1076 | } else { |
1077 | f2fs_put_page(pages[idx], 1); | |
1078 | } | |
1079 | offset[idx]++; | |
a225dca3 | 1080 | offset[idx + 1] = 0; |
1081 | idx--; | |
e05df3b1 | 1082 | fail: |
a225dca3 | 1083 | for (i = idx; i >= 0; i--) |
e05df3b1 | 1084 | f2fs_put_page(pages[i], 1); |
51dd6249 NJ |
1085 | |
1086 | trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err); | |
1087 | ||
e05df3b1 JK |
1088 | return err; |
1089 | } | |
1090 | ||
0a8165d7 | 1091 | /* |
e05df3b1 JK |
1092 | * All the block addresses of data and nodes should be nullified. |
1093 | */ | |
4d57b86d | 1094 | int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from) |
e05df3b1 | 1095 | { |
4081363f | 1096 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
e05df3b1 JK |
1097 | int err = 0, cont = 1; |
1098 | int level, offset[4], noffset[4]; | |
7dd690c8 | 1099 | unsigned int nofs = 0; |
58bfaf44 | 1100 | struct f2fs_inode *ri; |
e05df3b1 JK |
1101 | struct dnode_of_data dn; |
1102 | struct page *page; | |
1103 | ||
51dd6249 NJ |
1104 | trace_f2fs_truncate_inode_blocks_enter(inode, from); |
1105 | ||
81ca7350 | 1106 | level = get_node_path(inode, from, offset, noffset); |
9039d835 YF |
1107 | if (level < 0) { |
1108 | trace_f2fs_truncate_inode_blocks_exit(inode, level); | |
adb6dc19 | 1109 | return level; |
9039d835 | 1110 | } |
ff373558 | 1111 | |
4d57b86d | 1112 | page = f2fs_get_node_page(sbi, inode->i_ino); |
51dd6249 NJ |
1113 | if (IS_ERR(page)) { |
1114 | trace_f2fs_truncate_inode_blocks_exit(inode, PTR_ERR(page)); | |
e05df3b1 | 1115 | return PTR_ERR(page); |
51dd6249 | 1116 | } |
e05df3b1 JK |
1117 | |
1118 | set_new_dnode(&dn, inode, page, NULL, 0); | |
1119 | unlock_page(page); | |
1120 | ||
58bfaf44 | 1121 | ri = F2FS_INODE(page); |
e05df3b1 JK |
1122 | switch (level) { |
1123 | case 0: | |
1124 | case 1: | |
1125 | nofs = noffset[1]; | |
1126 | break; | |
1127 | case 2: | |
1128 | nofs = noffset[1]; | |
1129 | if (!offset[level - 1]) | |
1130 | goto skip_partial; | |
58bfaf44 | 1131 | err = truncate_partial_nodes(&dn, ri, offset, level); |
e05df3b1 JK |
1132 | if (err < 0 && err != -ENOENT) |
1133 | goto fail; | |
1134 | nofs += 1 + NIDS_PER_BLOCK; | |
1135 | break; | |
1136 | case 3: | |
1137 | nofs = 5 + 2 * NIDS_PER_BLOCK; | |
1138 | if (!offset[level - 1]) | |
1139 | goto skip_partial; | |
58bfaf44 | 1140 | err = truncate_partial_nodes(&dn, ri, offset, level); |
e05df3b1 JK |
1141 | if (err < 0 && err != -ENOENT) |
1142 | goto fail; | |
1143 | break; | |
1144 | default: | |
1145 | BUG(); | |
1146 | } | |
1147 | ||
1148 | skip_partial: | |
1149 | while (cont) { | |
58bfaf44 | 1150 | dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); |
e05df3b1 JK |
1151 | switch (offset[0]) { |
1152 | case NODE_DIR1_BLOCK: | |
1153 | case NODE_DIR2_BLOCK: | |
1154 | err = truncate_dnode(&dn); | |
1155 | break; | |
1156 | ||
1157 | case NODE_IND1_BLOCK: | |
1158 | case NODE_IND2_BLOCK: | |
1159 | err = truncate_nodes(&dn, nofs, offset[1], 2); | |
1160 | break; | |
1161 | ||
1162 | case NODE_DIND_BLOCK: | |
1163 | err = truncate_nodes(&dn, nofs, offset[1], 3); | |
1164 | cont = 0; | |
1165 | break; | |
1166 | ||
1167 | default: | |
1168 | BUG(); | |
1169 | } | |
1170 | if (err < 0 && err != -ENOENT) | |
1171 | goto fail; | |
1172 | if (offset[1] == 0 && | |
58bfaf44 | 1173 | ri->i_nid[offset[0] - NODE_DIR1_BLOCK]) { |
e05df3b1 | 1174 | lock_page(page); |
ff373558 | 1175 | BUG_ON(page->mapping != NODE_MAPPING(sbi)); |
bae0ee7a | 1176 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
58bfaf44 | 1177 | ri->i_nid[offset[0] - NODE_DIR1_BLOCK] = 0; |
e05df3b1 JK |
1178 | set_page_dirty(page); |
1179 | unlock_page(page); | |
1180 | } | |
1181 | offset[1] = 0; | |
1182 | offset[0]++; | |
1183 | nofs += err; | |
1184 | } | |
1185 | fail: | |
1186 | f2fs_put_page(page, 0); | |
51dd6249 | 1187 | trace_f2fs_truncate_inode_blocks_exit(inode, err); |
e05df3b1 JK |
1188 | return err > 0 ? 0 : err; |
1189 | } | |
1190 | ||
9c77f754 | 1191 | /* caller must lock inode page */ |
4d57b86d | 1192 | int f2fs_truncate_xattr_node(struct inode *inode) |
4f16fb0f | 1193 | { |
4081363f | 1194 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
4f16fb0f JK |
1195 | nid_t nid = F2FS_I(inode)->i_xattr_nid; |
1196 | struct dnode_of_data dn; | |
1197 | struct page *npage; | |
7735730d | 1198 | int err; |
4f16fb0f JK |
1199 | |
1200 | if (!nid) | |
1201 | return 0; | |
1202 | ||
4d57b86d | 1203 | npage = f2fs_get_node_page(sbi, nid); |
4f16fb0f JK |
1204 | if (IS_ERR(npage)) |
1205 | return PTR_ERR(npage); | |
1206 | ||
7735730d CY |
1207 | set_new_dnode(&dn, inode, NULL, npage, nid); |
1208 | err = truncate_node(&dn); | |
1209 | if (err) { | |
1210 | f2fs_put_page(npage, 1); | |
1211 | return err; | |
1212 | } | |
1213 | ||
205b9822 | 1214 | f2fs_i_xnid_write(inode, 0); |
65985d93 | 1215 | |
4f16fb0f JK |
1216 | return 0; |
1217 | } | |
1218 | ||
39936837 | 1219 | /* |
4f4124d0 CY |
1220 | * Caller should grab and release a rwsem by calling f2fs_lock_op() and |
1221 | * f2fs_unlock_op(). | |
39936837 | 1222 | */ |
4d57b86d | 1223 | int f2fs_remove_inode_page(struct inode *inode) |
e05df3b1 | 1224 | { |
e05df3b1 | 1225 | struct dnode_of_data dn; |
13ec7297 | 1226 | int err; |
e05df3b1 | 1227 | |
c2e69583 | 1228 | set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); |
4d57b86d | 1229 | err = f2fs_get_dnode_of_data(&dn, 0, LOOKUP_NODE); |
13ec7297 CY |
1230 | if (err) |
1231 | return err; | |
e05df3b1 | 1232 | |
4d57b86d | 1233 | err = f2fs_truncate_xattr_node(inode); |
13ec7297 | 1234 | if (err) { |
c2e69583 | 1235 | f2fs_put_dnode(&dn); |
13ec7297 | 1236 | return err; |
e05df3b1 | 1237 | } |
c2e69583 JK |
1238 | |
1239 | /* remove potential inline_data blocks */ | |
1240 | if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || | |
1241 | S_ISLNK(inode->i_mode)) | |
4d57b86d | 1242 | f2fs_truncate_data_blocks_range(&dn, 1); |
c2e69583 | 1243 | |
e1c42045 | 1244 | /* 0 is possible, after f2fs_new_inode() has failed */ |
8d714f8a JK |
1245 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { |
1246 | f2fs_put_dnode(&dn); | |
1247 | return -EIO; | |
1248 | } | |
8b6810f8 CY |
1249 | |
1250 | if (unlikely(inode->i_blocks != 0 && inode->i_blocks != 8)) { | |
097a7686 CY |
1251 | f2fs_warn(F2FS_I_SB(inode), |
1252 | "f2fs_remove_inode_page: inconsistent i_blocks, ino:%lu, iblocks:%llu", | |
1253 | inode->i_ino, (unsigned long long)inode->i_blocks); | |
8b6810f8 CY |
1254 | set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); |
1255 | } | |
c2e69583 JK |
1256 | |
1257 | /* will put inode & node pages */ | |
7735730d CY |
1258 | err = truncate_node(&dn); |
1259 | if (err) { | |
1260 | f2fs_put_dnode(&dn); | |
1261 | return err; | |
1262 | } | |
13ec7297 | 1263 | return 0; |
e05df3b1 JK |
1264 | } |
1265 | ||
4d57b86d | 1266 | struct page *f2fs_new_inode_page(struct inode *inode) |
e05df3b1 | 1267 | { |
e05df3b1 JK |
1268 | struct dnode_of_data dn; |
1269 | ||
1270 | /* allocate inode page for new inode */ | |
1271 | set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); | |
44a83ff6 JK |
1272 | |
1273 | /* caller should f2fs_put_page(page, 1); */ | |
4d57b86d | 1274 | return f2fs_new_node_page(&dn, 0); |
e05df3b1 JK |
1275 | } |
1276 | ||
4d57b86d | 1277 | struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs) |
e05df3b1 | 1278 | { |
4081363f | 1279 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
25cc5d3b | 1280 | struct node_info new_ni; |
e05df3b1 JK |
1281 | struct page *page; |
1282 | int err; | |
1283 | ||
91942321 | 1284 | if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC))) |
e05df3b1 JK |
1285 | return ERR_PTR(-EPERM); |
1286 | ||
300e129c | 1287 | page = f2fs_grab_cache_page(NODE_MAPPING(sbi), dn->nid, false); |
e05df3b1 JK |
1288 | if (!page) |
1289 | return ERR_PTR(-ENOMEM); | |
1290 | ||
0abd675e | 1291 | if (unlikely((err = inc_valid_node_count(sbi, dn->inode, !ofs)))) |
9c02740c | 1292 | goto fail; |
0abd675e | 1293 | |
25cc5d3b | 1294 | #ifdef CONFIG_F2FS_CHECK_FS |
a9419b63 | 1295 | err = f2fs_get_node_info(sbi, dn->nid, &new_ni, false); |
7735730d CY |
1296 | if (err) { |
1297 | dec_valid_node_count(sbi, dn->inode, !ofs); | |
1298 | goto fail; | |
1299 | } | |
141170b7 CY |
1300 | if (unlikely(new_ni.blk_addr != NULL_ADDR)) { |
1301 | err = -EFSCORRUPTED; | |
1302 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
95fa90c9 | 1303 | f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR); |
141170b7 CY |
1304 | goto fail; |
1305 | } | |
25cc5d3b JK |
1306 | #endif |
1307 | new_ni.nid = dn->nid; | |
e05df3b1 | 1308 | new_ni.ino = dn->inode->i_ino; |
25cc5d3b JK |
1309 | new_ni.blk_addr = NULL_ADDR; |
1310 | new_ni.flag = 0; | |
1311 | new_ni.version = 0; | |
479f40c4 | 1312 | set_node_addr(sbi, &new_ni, NEW_ADDR, false); |
9c02740c | 1313 | |
bae0ee7a | 1314 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
9c02740c | 1315 | fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true); |
c5667575 | 1316 | set_cold_node(page, S_ISDIR(dn->inode->i_mode)); |
237c0790 JK |
1317 | if (!PageUptodate(page)) |
1318 | SetPageUptodate(page); | |
12719ae1 JK |
1319 | if (set_page_dirty(page)) |
1320 | dn->node_changed = true; | |
e05df3b1 | 1321 | |
4bc8e9bc | 1322 | if (f2fs_has_xattr_block(ofs)) |
205b9822 | 1323 | f2fs_i_xnid_write(dn->inode, dn->nid); |
479bd73a | 1324 | |
e05df3b1 JK |
1325 | if (ofs == 0) |
1326 | inc_valid_inode_count(sbi); | |
e05df3b1 JK |
1327 | return page; |
1328 | ||
1329 | fail: | |
71e9fec5 | 1330 | clear_node_page_dirty(page); |
e05df3b1 JK |
1331 | f2fs_put_page(page, 1); |
1332 | return ERR_PTR(err); | |
1333 | } | |
1334 | ||
56ae674c JK |
1335 | /* |
1336 | * Caller should do after getting the following values. | |
1337 | * 0: f2fs_put_page(page, 0) | |
86531d6b | 1338 | * LOCKED_PAGE or error: f2fs_put_page(page, 1) |
56ae674c | 1339 | */ |
7649c873 | 1340 | static int read_node_page(struct page *page, blk_opf_t op_flags) |
e05df3b1 | 1341 | { |
4081363f | 1342 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
e05df3b1 | 1343 | struct node_info ni; |
cf04e8eb | 1344 | struct f2fs_io_info fio = { |
05ca3632 | 1345 | .sbi = sbi, |
cf04e8eb | 1346 | .type = NODE, |
04d328de MC |
1347 | .op = REQ_OP_READ, |
1348 | .op_flags = op_flags, | |
05ca3632 | 1349 | .page = page, |
4375a336 | 1350 | .encrypted_page = NULL, |
cf04e8eb | 1351 | }; |
7735730d | 1352 | int err; |
e05df3b1 | 1353 | |
54c55c4e | 1354 | if (PageUptodate(page)) { |
b42b179b CY |
1355 | if (!f2fs_inode_chksum_verify(sbi, page)) { |
1356 | ClearPageUptodate(page); | |
10f966bb | 1357 | return -EFSBADCRC; |
b42b179b | 1358 | } |
3bdad3c7 | 1359 | return LOCKED_PAGE; |
54c55c4e | 1360 | } |
3bdad3c7 | 1361 | |
a9419b63 | 1362 | err = f2fs_get_node_info(sbi, page->index, &ni, false); |
7735730d CY |
1363 | if (err) |
1364 | return err; | |
e05df3b1 | 1365 | |
b7ec2061 | 1366 | /* NEW_ADDR can be seen, after cp_error drops some dirty node pages */ |
e6ecb142 | 1367 | if (unlikely(ni.blk_addr == NULL_ADDR || ni.blk_addr == NEW_ADDR)) { |
2bca1e23 | 1368 | ClearPageUptodate(page); |
e05df3b1 | 1369 | return -ENOENT; |
393ff91f JK |
1370 | } |
1371 | ||
7a9d7548 | 1372 | fio.new_blkaddr = fio.old_blkaddr = ni.blk_addr; |
8b83ac81 CY |
1373 | |
1374 | err = f2fs_submit_page_bio(&fio); | |
1375 | ||
1376 | if (!err) | |
34a23525 | 1377 | f2fs_update_iostat(sbi, NULL, FS_NODE_READ_IO, F2FS_BLKSIZE); |
8b83ac81 CY |
1378 | |
1379 | return err; | |
e05df3b1 JK |
1380 | } |
1381 | ||
0a8165d7 | 1382 | /* |
e05df3b1 JK |
1383 | * Readahead a node page |
1384 | */ | |
4d57b86d | 1385 | void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 | 1386 | { |
e05df3b1 | 1387 | struct page *apage; |
56ae674c | 1388 | int err; |
e05df3b1 | 1389 | |
e8458725 CY |
1390 | if (!nid) |
1391 | return; | |
4d57b86d | 1392 | if (f2fs_check_nid_range(sbi, nid)) |
a4f843bd | 1393 | return; |
e8458725 | 1394 | |
5ec2d99d | 1395 | apage = xa_load(&NODE_MAPPING(sbi)->i_pages, nid); |
999270de | 1396 | if (apage) |
393ff91f | 1397 | return; |
e05df3b1 | 1398 | |
300e129c | 1399 | apage = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); |
e05df3b1 JK |
1400 | if (!apage) |
1401 | return; | |
1402 | ||
70246286 | 1403 | err = read_node_page(apage, REQ_RAHEAD); |
86531d6b | 1404 | f2fs_put_page(apage, err ? 1 : 0); |
e05df3b1 JK |
1405 | } |
1406 | ||
17a0ee55 | 1407 | static struct page *__get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid, |
0e022ea8 | 1408 | struct page *parent, int start) |
e05df3b1 | 1409 | { |
e05df3b1 | 1410 | struct page *page; |
0e022ea8 | 1411 | int err; |
e05df3b1 | 1412 | |
e05df3b1 JK |
1413 | if (!nid) |
1414 | return ERR_PTR(-ENOENT); | |
4d57b86d | 1415 | if (f2fs_check_nid_range(sbi, nid)) |
a4f843bd | 1416 | return ERR_PTR(-EINVAL); |
afcb7ca0 | 1417 | repeat: |
300e129c | 1418 | page = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); |
e05df3b1 JK |
1419 | if (!page) |
1420 | return ERR_PTR(-ENOMEM); | |
1421 | ||
70fd7614 | 1422 | err = read_node_page(page, 0); |
86531d6b | 1423 | if (err < 0) { |
a7b8618a | 1424 | goto out_put_err; |
86531d6b | 1425 | } else if (err == LOCKED_PAGE) { |
1f258ec1 | 1426 | err = 0; |
56ae674c | 1427 | goto page_hit; |
86531d6b | 1428 | } |
e05df3b1 | 1429 | |
0e022ea8 | 1430 | if (parent) |
4d57b86d | 1431 | f2fs_ra_node_pages(parent, start + 1, MAX_RA_NODE); |
c718379b | 1432 | |
e05df3b1 | 1433 | lock_page(page); |
0e022ea8 | 1434 | |
4ef51a8f | 1435 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { |
afcb7ca0 JK |
1436 | f2fs_put_page(page, 1); |
1437 | goto repeat; | |
1438 | } | |
1563ac75 | 1439 | |
1f258ec1 CY |
1440 | if (unlikely(!PageUptodate(page))) { |
1441 | err = -EIO; | |
1563ac75 | 1442 | goto out_err; |
1f258ec1 | 1443 | } |
704956ec CY |
1444 | |
1445 | if (!f2fs_inode_chksum_verify(sbi, page)) { | |
10f966bb | 1446 | err = -EFSBADCRC; |
704956ec CY |
1447 | goto out_err; |
1448 | } | |
e0f56cb4 | 1449 | page_hit: |
a7b8618a JK |
1450 | if (likely(nid == nid_of_node(page))) |
1451 | return page; | |
1452 | ||
1453 | f2fs_warn(sbi, "inconsistent node block, nid:%lu, node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]", | |
dcbb4c10 JP |
1454 | nid, nid_of_node(page), ino_of_node(page), |
1455 | ofs_of_node(page), cpver_of_node(page), | |
1456 | next_blkaddr_of_node(page)); | |
a7b8618a JK |
1457 | set_sbi_flag(sbi, SBI_NEED_FSCK); |
1458 | err = -EINVAL; | |
0c9df7fb | 1459 | out_err: |
a7b8618a JK |
1460 | ClearPageUptodate(page); |
1461 | out_put_err: | |
82c7863e JK |
1462 | /* ENOENT comes from read_node_page which is not an error. */ |
1463 | if (err != -ENOENT) | |
1464 | f2fs_handle_page_eio(sbi, page->index, NODE); | |
a7b8618a JK |
1465 | f2fs_put_page(page, 1); |
1466 | return ERR_PTR(err); | |
e05df3b1 JK |
1467 | } |
1468 | ||
4d57b86d | 1469 | struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid) |
0e022ea8 CY |
1470 | { |
1471 | return __get_node_page(sbi, nid, NULL, 0); | |
1472 | } | |
1473 | ||
4d57b86d | 1474 | struct page *f2fs_get_node_page_ra(struct page *parent, int start) |
0e022ea8 CY |
1475 | { |
1476 | struct f2fs_sb_info *sbi = F2FS_P_SB(parent); | |
1477 | nid_t nid = get_nid(parent, start, false); | |
1478 | ||
1479 | return __get_node_page(sbi, nid, parent, start); | |
1480 | } | |
1481 | ||
2049d4fc JK |
1482 | static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) |
1483 | { | |
1484 | struct inode *inode; | |
1485 | struct page *page; | |
0f3311a8 | 1486 | int ret; |
2049d4fc JK |
1487 | |
1488 | /* should flush inline_data before evict_inode */ | |
1489 | inode = ilookup(sbi->sb, ino); | |
1490 | if (!inode) | |
1491 | return; | |
1492 | ||
01eccef7 CY |
1493 | page = f2fs_pagecache_get_page(inode->i_mapping, 0, |
1494 | FGP_LOCK|FGP_NOWAIT, 0); | |
2049d4fc JK |
1495 | if (!page) |
1496 | goto iput_out; | |
1497 | ||
1498 | if (!PageUptodate(page)) | |
1499 | goto page_out; | |
1500 | ||
1501 | if (!PageDirty(page)) | |
1502 | goto page_out; | |
1503 | ||
1504 | if (!clear_page_dirty_for_io(page)) | |
1505 | goto page_out; | |
1506 | ||
0f3311a8 CY |
1507 | ret = f2fs_write_inline_data(inode, page); |
1508 | inode_dec_dirty_pages(inode); | |
4d57b86d | 1509 | f2fs_remove_dirty_inode(inode); |
0f3311a8 | 1510 | if (ret) |
2049d4fc JK |
1511 | set_page_dirty(page); |
1512 | page_out: | |
4a6de50d | 1513 | f2fs_put_page(page, 1); |
2049d4fc JK |
1514 | iput_out: |
1515 | iput(inode); | |
1516 | } | |
1517 | ||
608514de JK |
1518 | static struct page *last_fsync_dnode(struct f2fs_sb_info *sbi, nid_t ino) |
1519 | { | |
028a63a6 | 1520 | pgoff_t index; |
608514de JK |
1521 | struct pagevec pvec; |
1522 | struct page *last_page = NULL; | |
028a63a6 | 1523 | int nr_pages; |
608514de | 1524 | |
86679820 | 1525 | pagevec_init(&pvec); |
608514de | 1526 | index = 0; |
028a63a6 JK |
1527 | |
1528 | while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, | |
67fd707f | 1529 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 1530 | int i; |
608514de JK |
1531 | |
1532 | for (i = 0; i < nr_pages; i++) { | |
1533 | struct page *page = pvec.pages[i]; | |
1534 | ||
1535 | if (unlikely(f2fs_cp_error(sbi))) { | |
1536 | f2fs_put_page(last_page, 0); | |
1537 | pagevec_release(&pvec); | |
1538 | return ERR_PTR(-EIO); | |
1539 | } | |
1540 | ||
1541 | if (!IS_DNODE(page) || !is_cold_node(page)) | |
1542 | continue; | |
1543 | if (ino_of_node(page) != ino) | |
1544 | continue; | |
1545 | ||
1546 | lock_page(page); | |
1547 | ||
1548 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { | |
1549 | continue_unlock: | |
1550 | unlock_page(page); | |
1551 | continue; | |
1552 | } | |
1553 | if (ino_of_node(page) != ino) | |
1554 | goto continue_unlock; | |
1555 | ||
1556 | if (!PageDirty(page)) { | |
1557 | /* someone wrote it for us */ | |
1558 | goto continue_unlock; | |
1559 | } | |
1560 | ||
1561 | if (last_page) | |
1562 | f2fs_put_page(last_page, 0); | |
1563 | ||
1564 | get_page(page); | |
1565 | last_page = page; | |
1566 | unlock_page(page); | |
1567 | } | |
1568 | pagevec_release(&pvec); | |
1569 | cond_resched(); | |
1570 | } | |
1571 | return last_page; | |
1572 | } | |
1573 | ||
d68f735b | 1574 | static int __write_node_page(struct page *page, bool atomic, bool *submitted, |
b0af6d49 | 1575 | struct writeback_control *wbc, bool do_balance, |
50fa53ec | 1576 | enum iostat_type io_type, unsigned int *seq_id) |
faa24895 JK |
1577 | { |
1578 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); | |
1579 | nid_t nid; | |
1580 | struct node_info ni; | |
1581 | struct f2fs_io_info fio = { | |
1582 | .sbi = sbi, | |
39d787be | 1583 | .ino = ino_of_node(page), |
faa24895 JK |
1584 | .type = NODE, |
1585 | .op = REQ_OP_WRITE, | |
1586 | .op_flags = wbc_to_write_flags(wbc), | |
1587 | .page = page, | |
1588 | .encrypted_page = NULL, | |
d68f735b | 1589 | .submitted = false, |
b0af6d49 | 1590 | .io_type = io_type, |
578c6478 | 1591 | .io_wbc = wbc, |
faa24895 | 1592 | }; |
50fa53ec | 1593 | unsigned int seq; |
faa24895 JK |
1594 | |
1595 | trace_f2fs_writepage(page, NODE); | |
1596 | ||
6d7c865c | 1597 | if (unlikely(f2fs_cp_error(sbi))) { |
28607bf3 JK |
1598 | ClearPageUptodate(page); |
1599 | dec_page_count(sbi, F2FS_DIRTY_NODES); | |
1600 | unlock_page(page); | |
1601 | return 0; | |
6d7c865c | 1602 | } |
db198ae0 | 1603 | |
faa24895 JK |
1604 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
1605 | goto redirty_out; | |
faa24895 | 1606 | |
100c0655 JK |
1607 | if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && |
1608 | wbc->sync_mode == WB_SYNC_NONE && | |
fd8c8caf CY |
1609 | IS_DNODE(page) && is_cold_node(page)) |
1610 | goto redirty_out; | |
1611 | ||
faa24895 JK |
1612 | /* get old block addr of this node page */ |
1613 | nid = nid_of_node(page); | |
1614 | f2fs_bug_on(sbi, page->index != nid); | |
1615 | ||
a9419b63 | 1616 | if (f2fs_get_node_info(sbi, nid, &ni, !do_balance)) |
7735730d CY |
1617 | goto redirty_out; |
1618 | ||
faa24895 | 1619 | if (wbc->for_reclaim) { |
e4544b63 | 1620 | if (!f2fs_down_read_trylock(&sbi->node_write)) |
faa24895 JK |
1621 | goto redirty_out; |
1622 | } else { | |
e4544b63 | 1623 | f2fs_down_read(&sbi->node_write); |
faa24895 JK |
1624 | } |
1625 | ||
faa24895 JK |
1626 | /* This page is already truncated */ |
1627 | if (unlikely(ni.blk_addr == NULL_ADDR)) { | |
1628 | ClearPageUptodate(page); | |
1629 | dec_page_count(sbi, F2FS_DIRTY_NODES); | |
e4544b63 | 1630 | f2fs_up_read(&sbi->node_write); |
faa24895 JK |
1631 | unlock_page(page); |
1632 | return 0; | |
1633 | } | |
1634 | ||
c9b60788 | 1635 | if (__is_valid_data_blkaddr(ni.blk_addr) && |
93770ab7 CY |
1636 | !f2fs_is_valid_blkaddr(sbi, ni.blk_addr, |
1637 | DATA_GENERIC_ENHANCE)) { | |
e4544b63 | 1638 | f2fs_up_read(&sbi->node_write); |
c9b60788 | 1639 | goto redirty_out; |
89d13c38 | 1640 | } |
c9b60788 | 1641 | |
c550e25b | 1642 | if (atomic && !test_opt(sbi, NOBARRIER) && !f2fs_sb_has_blkzoned(sbi)) |
e7c75ab0 JK |
1643 | fio.op_flags |= REQ_PREFLUSH | REQ_FUA; |
1644 | ||
dc5a9412 | 1645 | /* should add to global list before clearing PAGECACHE status */ |
50fa53ec CY |
1646 | if (f2fs_in_warm_node_list(sbi, page)) { |
1647 | seq = f2fs_add_fsync_node_entry(sbi, page); | |
1648 | if (seq_id) | |
1649 | *seq_id = seq; | |
1650 | } | |
1651 | ||
dc5a9412 CY |
1652 | set_page_writeback(page); |
1653 | ClearPageError(page); | |
1654 | ||
faa24895 | 1655 | fio.old_blkaddr = ni.blk_addr; |
4d57b86d | 1656 | f2fs_do_write_node_page(nid, &fio); |
faa24895 JK |
1657 | set_node_addr(sbi, &ni, fio.new_blkaddr, is_fsync_dnode(page)); |
1658 | dec_page_count(sbi, F2FS_DIRTY_NODES); | |
e4544b63 | 1659 | f2fs_up_read(&sbi->node_write); |
faa24895 | 1660 | |
d68f735b | 1661 | if (wbc->for_reclaim) { |
bab475c5 | 1662 | f2fs_submit_merged_write_cond(sbi, NULL, page, 0, NODE); |
d68f735b JK |
1663 | submitted = NULL; |
1664 | } | |
faa24895 JK |
1665 | |
1666 | unlock_page(page); | |
1667 | ||
d68f735b | 1668 | if (unlikely(f2fs_cp_error(sbi))) { |
b9109b0e | 1669 | f2fs_submit_merged_write(sbi, NODE); |
d68f735b JK |
1670 | submitted = NULL; |
1671 | } | |
1672 | if (submitted) | |
1673 | *submitted = fio.submitted; | |
faa24895 | 1674 | |
401db79f YS |
1675 | if (do_balance) |
1676 | f2fs_balance_fs(sbi, false); | |
faa24895 JK |
1677 | return 0; |
1678 | ||
1679 | redirty_out: | |
1680 | redirty_page_for_writepage(wbc, page); | |
1681 | return AOP_WRITEPAGE_ACTIVATE; | |
1682 | } | |
1683 | ||
48018b4c | 1684 | int f2fs_move_node_page(struct page *node_page, int gc_type) |
f15194fc | 1685 | { |
48018b4c CY |
1686 | int err = 0; |
1687 | ||
f15194fc YH |
1688 | if (gc_type == FG_GC) { |
1689 | struct writeback_control wbc = { | |
1690 | .sync_mode = WB_SYNC_ALL, | |
1691 | .nr_to_write = 1, | |
1692 | .for_reclaim = 0, | |
1693 | }; | |
1694 | ||
bae0ee7a | 1695 | f2fs_wait_on_page_writeback(node_page, NODE, true, true); |
8d64d365 CY |
1696 | |
1697 | set_page_dirty(node_page); | |
1698 | ||
48018b4c CY |
1699 | if (!clear_page_dirty_for_io(node_page)) { |
1700 | err = -EAGAIN; | |
f15194fc | 1701 | goto out_page; |
48018b4c | 1702 | } |
f15194fc YH |
1703 | |
1704 | if (__write_node_page(node_page, false, NULL, | |
48018b4c CY |
1705 | &wbc, false, FS_GC_NODE_IO, NULL)) { |
1706 | err = -EAGAIN; | |
f15194fc | 1707 | unlock_page(node_page); |
48018b4c | 1708 | } |
f15194fc YH |
1709 | goto release_page; |
1710 | } else { | |
1711 | /* set page dirty and write it */ | |
1712 | if (!PageWriteback(node_page)) | |
1713 | set_page_dirty(node_page); | |
1714 | } | |
1715 | out_page: | |
1716 | unlock_page(node_page); | |
1717 | release_page: | |
1718 | f2fs_put_page(node_page, 0); | |
48018b4c | 1719 | return err; |
f15194fc YH |
1720 | } |
1721 | ||
faa24895 JK |
1722 | static int f2fs_write_node_page(struct page *page, |
1723 | struct writeback_control *wbc) | |
1724 | { | |
50fa53ec CY |
1725 | return __write_node_page(page, false, NULL, wbc, false, |
1726 | FS_NODE_IO, NULL); | |
faa24895 JK |
1727 | } |
1728 | ||
4d57b86d | 1729 | int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, |
50fa53ec CY |
1730 | struct writeback_control *wbc, bool atomic, |
1731 | unsigned int *seq_id) | |
e05df3b1 | 1732 | { |
028a63a6 | 1733 | pgoff_t index; |
e05df3b1 | 1734 | struct pagevec pvec; |
c267ec15 | 1735 | int ret = 0; |
608514de JK |
1736 | struct page *last_page = NULL; |
1737 | bool marked = false; | |
26de9b11 | 1738 | nid_t ino = inode->i_ino; |
028a63a6 | 1739 | int nr_pages; |
bab475c5 | 1740 | int nwritten = 0; |
52681375 | 1741 | |
608514de JK |
1742 | if (atomic) { |
1743 | last_page = last_fsync_dnode(sbi, ino); | |
1744 | if (IS_ERR_OR_NULL(last_page)) | |
1745 | return PTR_ERR_OR_ZERO(last_page); | |
1746 | } | |
1747 | retry: | |
86679820 | 1748 | pagevec_init(&pvec); |
52681375 | 1749 | index = 0; |
028a63a6 JK |
1750 | |
1751 | while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, | |
67fd707f | 1752 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 1753 | int i; |
52681375 JK |
1754 | |
1755 | for (i = 0; i < nr_pages; i++) { | |
1756 | struct page *page = pvec.pages[i]; | |
d68f735b | 1757 | bool submitted = false; |
52681375 JK |
1758 | |
1759 | if (unlikely(f2fs_cp_error(sbi))) { | |
608514de | 1760 | f2fs_put_page(last_page, 0); |
52681375 | 1761 | pagevec_release(&pvec); |
9de69279 CY |
1762 | ret = -EIO; |
1763 | goto out; | |
52681375 JK |
1764 | } |
1765 | ||
1766 | if (!IS_DNODE(page) || !is_cold_node(page)) | |
1767 | continue; | |
1768 | if (ino_of_node(page) != ino) | |
1769 | continue; | |
1770 | ||
1771 | lock_page(page); | |
1772 | ||
1773 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { | |
1774 | continue_unlock: | |
1775 | unlock_page(page); | |
1776 | continue; | |
1777 | } | |
1778 | if (ino_of_node(page) != ino) | |
1779 | goto continue_unlock; | |
1780 | ||
608514de | 1781 | if (!PageDirty(page) && page != last_page) { |
52681375 JK |
1782 | /* someone wrote it for us */ |
1783 | goto continue_unlock; | |
1784 | } | |
1785 | ||
bae0ee7a | 1786 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
52681375 | 1787 | |
d29fd172 JK |
1788 | set_fsync_mark(page, 0); |
1789 | set_dentry_mark(page, 0); | |
1790 | ||
608514de JK |
1791 | if (!atomic || page == last_page) { |
1792 | set_fsync_mark(page, 1); | |
47c8ebcc | 1793 | percpu_counter_inc(&sbi->rf_node_block_count); |
26de9b11 JK |
1794 | if (IS_INODE(page)) { |
1795 | if (is_inode_flag_set(inode, | |
1796 | FI_DIRTY_INODE)) | |
4d57b86d | 1797 | f2fs_update_inode(inode, page); |
608514de | 1798 | set_dentry_mark(page, |
4d57b86d | 1799 | f2fs_need_dentry_mark(sbi, ino)); |
26de9b11 | 1800 | } |
a87aff1d | 1801 | /* may be written by other thread */ |
608514de JK |
1802 | if (!PageDirty(page)) |
1803 | set_page_dirty(page); | |
1804 | } | |
1805 | ||
1806 | if (!clear_page_dirty_for_io(page)) | |
1807 | goto continue_unlock; | |
52681375 | 1808 | |
e7c75ab0 | 1809 | ret = __write_node_page(page, atomic && |
d68f735b | 1810 | page == last_page, |
b0af6d49 | 1811 | &submitted, wbc, true, |
50fa53ec | 1812 | FS_NODE_IO, seq_id); |
c267ec15 | 1813 | if (ret) { |
52681375 | 1814 | unlock_page(page); |
608514de JK |
1815 | f2fs_put_page(last_page, 0); |
1816 | break; | |
d68f735b | 1817 | } else if (submitted) { |
bab475c5 | 1818 | nwritten++; |
608514de | 1819 | } |
3f5f4959 | 1820 | |
608514de JK |
1821 | if (page == last_page) { |
1822 | f2fs_put_page(page, 0); | |
1823 | marked = true; | |
52681375 | 1824 | break; |
c267ec15 | 1825 | } |
52681375 JK |
1826 | } |
1827 | pagevec_release(&pvec); | |
1828 | cond_resched(); | |
1829 | ||
608514de | 1830 | if (ret || marked) |
52681375 JK |
1831 | break; |
1832 | } | |
608514de | 1833 | if (!ret && atomic && !marked) { |
dcbb4c10 JP |
1834 | f2fs_debug(sbi, "Retry to write fsync mark: ino=%u, idx=%lx", |
1835 | ino, last_page->index); | |
608514de | 1836 | lock_page(last_page); |
bae0ee7a | 1837 | f2fs_wait_on_page_writeback(last_page, NODE, true, true); |
608514de JK |
1838 | set_page_dirty(last_page); |
1839 | unlock_page(last_page); | |
1840 | goto retry; | |
1841 | } | |
9de69279 | 1842 | out: |
bab475c5 CY |
1843 | if (nwritten) |
1844 | f2fs_submit_merged_write_cond(sbi, NULL, NULL, ino, NODE); | |
5f029c04 | 1845 | return ret ? -EIO : 0; |
52681375 JK |
1846 | } |
1847 | ||
052a82d8 CY |
1848 | static int f2fs_match_ino(struct inode *inode, unsigned long ino, void *data) |
1849 | { | |
1850 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1851 | bool clean; | |
1852 | ||
1853 | if (inode->i_ino != ino) | |
1854 | return 0; | |
1855 | ||
1856 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
1857 | return 0; | |
1858 | ||
1859 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1860 | clean = list_empty(&F2FS_I(inode)->gdirty_list); | |
1861 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1862 | ||
1863 | if (clean) | |
1864 | return 0; | |
1865 | ||
1866 | inode = igrab(inode); | |
1867 | if (!inode) | |
1868 | return 0; | |
1869 | return 1; | |
1870 | } | |
1871 | ||
1872 | static bool flush_dirty_inode(struct page *page) | |
1873 | { | |
1874 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); | |
1875 | struct inode *inode; | |
1876 | nid_t ino = ino_of_node(page); | |
1877 | ||
1878 | inode = find_inode_nowait(sbi->sb, ino, f2fs_match_ino, NULL); | |
1879 | if (!inode) | |
1880 | return false; | |
1881 | ||
1882 | f2fs_update_inode(inode, page); | |
1883 | unlock_page(page); | |
1884 | ||
1885 | iput(inode); | |
1886 | return true; | |
1887 | } | |
1888 | ||
68e79baf | 1889 | void f2fs_flush_inline_data(struct f2fs_sb_info *sbi) |
34c061ad SL |
1890 | { |
1891 | pgoff_t index = 0; | |
1892 | struct pagevec pvec; | |
1893 | int nr_pages; | |
34c061ad SL |
1894 | |
1895 | pagevec_init(&pvec); | |
1896 | ||
1897 | while ((nr_pages = pagevec_lookup_tag(&pvec, | |
1898 | NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { | |
1899 | int i; | |
1900 | ||
1901 | for (i = 0; i < nr_pages; i++) { | |
1902 | struct page *page = pvec.pages[i]; | |
1903 | ||
1904 | if (!IS_DNODE(page)) | |
1905 | continue; | |
1906 | ||
1907 | lock_page(page); | |
1908 | ||
1909 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { | |
1910 | continue_unlock: | |
1911 | unlock_page(page); | |
1912 | continue; | |
1913 | } | |
1914 | ||
1915 | if (!PageDirty(page)) { | |
1916 | /* someone wrote it for us */ | |
1917 | goto continue_unlock; | |
1918 | } | |
1919 | ||
1920 | /* flush inline_data, if it's async context. */ | |
b763f3be CY |
1921 | if (page_private_inline(page)) { |
1922 | clear_page_private_inline(page); | |
34c061ad SL |
1923 | unlock_page(page); |
1924 | flush_inline_data(sbi, ino_of_node(page)); | |
1925 | continue; | |
1926 | } | |
1927 | unlock_page(page); | |
1928 | } | |
1929 | pagevec_release(&pvec); | |
1930 | cond_resched(); | |
1931 | } | |
34c061ad SL |
1932 | } |
1933 | ||
4d57b86d CY |
1934 | int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, |
1935 | struct writeback_control *wbc, | |
b0af6d49 | 1936 | bool do_balance, enum iostat_type io_type) |
52681375 | 1937 | { |
028a63a6 | 1938 | pgoff_t index; |
52681375 JK |
1939 | struct pagevec pvec; |
1940 | int step = 0; | |
12bb0a8f | 1941 | int nwritten = 0; |
3f5f4959 | 1942 | int ret = 0; |
c29fd0c0 | 1943 | int nr_pages, done = 0; |
e05df3b1 | 1944 | |
86679820 | 1945 | pagevec_init(&pvec); |
e05df3b1 JK |
1946 | |
1947 | next_step: | |
1948 | index = 0; | |
028a63a6 | 1949 | |
c29fd0c0 CY |
1950 | while (!done && (nr_pages = pagevec_lookup_tag(&pvec, |
1951 | NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { | |
028a63a6 | 1952 | int i; |
e05df3b1 JK |
1953 | |
1954 | for (i = 0; i < nr_pages; i++) { | |
1955 | struct page *page = pvec.pages[i]; | |
d68f735b | 1956 | bool submitted = false; |
e05df3b1 | 1957 | |
c29fd0c0 CY |
1958 | /* give a priority to WB_SYNC threads */ |
1959 | if (atomic_read(&sbi->wb_sync_req[NODE]) && | |
1960 | wbc->sync_mode == WB_SYNC_NONE) { | |
1961 | done = 1; | |
1962 | break; | |
1963 | } | |
1964 | ||
e05df3b1 JK |
1965 | /* |
1966 | * flushing sequence with step: | |
1967 | * 0. indirect nodes | |
1968 | * 1. dentry dnodes | |
1969 | * 2. file dnodes | |
1970 | */ | |
1971 | if (step == 0 && IS_DNODE(page)) | |
1972 | continue; | |
1973 | if (step == 1 && (!IS_DNODE(page) || | |
1974 | is_cold_node(page))) | |
1975 | continue; | |
1976 | if (step == 2 && (!IS_DNODE(page) || | |
1977 | !is_cold_node(page))) | |
1978 | continue; | |
9a4cbc9e | 1979 | lock_node: |
4b270a8c CY |
1980 | if (wbc->sync_mode == WB_SYNC_ALL) |
1981 | lock_page(page); | |
1982 | else if (!trylock_page(page)) | |
e05df3b1 JK |
1983 | continue; |
1984 | ||
4ef51a8f | 1985 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { |
e05df3b1 JK |
1986 | continue_unlock: |
1987 | unlock_page(page); | |
1988 | continue; | |
1989 | } | |
e05df3b1 JK |
1990 | |
1991 | if (!PageDirty(page)) { | |
1992 | /* someone wrote it for us */ | |
1993 | goto continue_unlock; | |
1994 | } | |
1995 | ||
b0f3b87f JK |
1996 | /* flush inline_data/inode, if it's async context. */ |
1997 | if (!do_balance) | |
1998 | goto write_node; | |
1999 | ||
2000 | /* flush inline_data */ | |
b763f3be CY |
2001 | if (page_private_inline(page)) { |
2002 | clear_page_private_inline(page); | |
2049d4fc JK |
2003 | unlock_page(page); |
2004 | flush_inline_data(sbi, ino_of_node(page)); | |
9a4cbc9e | 2005 | goto lock_node; |
052a82d8 CY |
2006 | } |
2007 | ||
2008 | /* flush dirty inode */ | |
7859e97f JK |
2009 | if (IS_INODE(page) && flush_dirty_inode(page)) |
2010 | goto lock_node; | |
b0f3b87f | 2011 | write_node: |
bae0ee7a | 2012 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
fa3d2bdf | 2013 | |
e05df3b1 JK |
2014 | if (!clear_page_dirty_for_io(page)) |
2015 | goto continue_unlock; | |
2016 | ||
52681375 JK |
2017 | set_fsync_mark(page, 0); |
2018 | set_dentry_mark(page, 0); | |
52746519 | 2019 | |
401db79f | 2020 | ret = __write_node_page(page, false, &submitted, |
50fa53ec | 2021 | wbc, do_balance, io_type, NULL); |
d68f735b | 2022 | if (ret) |
52746519 | 2023 | unlock_page(page); |
d68f735b | 2024 | else if (submitted) |
3f5f4959 | 2025 | nwritten++; |
e05df3b1 JK |
2026 | |
2027 | if (--wbc->nr_to_write == 0) | |
2028 | break; | |
2029 | } | |
2030 | pagevec_release(&pvec); | |
2031 | cond_resched(); | |
2032 | ||
2033 | if (wbc->nr_to_write == 0) { | |
2034 | step = 2; | |
2035 | break; | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | if (step < 2) { | |
100c0655 JK |
2040 | if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && |
2041 | wbc->sync_mode == WB_SYNC_NONE && step == 1) | |
fd8c8caf | 2042 | goto out; |
e05df3b1 JK |
2043 | step++; |
2044 | goto next_step; | |
2045 | } | |
fd8c8caf | 2046 | out: |
3f5f4959 | 2047 | if (nwritten) |
b9109b0e | 2048 | f2fs_submit_merged_write(sbi, NODE); |
db198ae0 CY |
2049 | |
2050 | if (unlikely(f2fs_cp_error(sbi))) | |
2051 | return -EIO; | |
3f5f4959 | 2052 | return ret; |
e05df3b1 JK |
2053 | } |
2054 | ||
50fa53ec CY |
2055 | int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, |
2056 | unsigned int seq_id) | |
cfe58f9d | 2057 | { |
50fa53ec CY |
2058 | struct fsync_node_entry *fn; |
2059 | struct page *page; | |
2060 | struct list_head *head = &sbi->fsync_node_list; | |
2061 | unsigned long flags; | |
2062 | unsigned int cur_seq_id = 0; | |
280db3c8 | 2063 | int ret2, ret = 0; |
cfe58f9d | 2064 | |
50fa53ec CY |
2065 | while (seq_id && cur_seq_id < seq_id) { |
2066 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
2067 | if (list_empty(head)) { | |
2068 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
2069 | break; | |
2070 | } | |
2071 | fn = list_first_entry(head, struct fsync_node_entry, list); | |
2072 | if (fn->seq_id > seq_id) { | |
2073 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
2074 | break; | |
2075 | } | |
2076 | cur_seq_id = fn->seq_id; | |
2077 | page = fn->page; | |
2078 | get_page(page); | |
2079 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
4ef51a8f | 2080 | |
bae0ee7a | 2081 | f2fs_wait_on_page_writeback(page, NODE, true, false); |
50fa53ec CY |
2082 | if (TestClearPageError(page)) |
2083 | ret = -EIO; | |
cfe58f9d | 2084 | |
50fa53ec | 2085 | put_page(page); |
cfe58f9d | 2086 | |
50fa53ec CY |
2087 | if (ret) |
2088 | break; | |
cfe58f9d JK |
2089 | } |
2090 | ||
280db3c8 | 2091 | ret2 = filemap_check_errors(NODE_MAPPING(sbi)); |
cfe58f9d JK |
2092 | if (!ret) |
2093 | ret = ret2; | |
50fa53ec | 2094 | |
cfe58f9d JK |
2095 | return ret; |
2096 | } | |
2097 | ||
e05df3b1 JK |
2098 | static int f2fs_write_node_pages(struct address_space *mapping, |
2099 | struct writeback_control *wbc) | |
2100 | { | |
4081363f | 2101 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
9dfa1baf | 2102 | struct blk_plug plug; |
50c8cdb3 | 2103 | long diff; |
e05df3b1 | 2104 | |
0771fcc7 CY |
2105 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
2106 | goto skip_write; | |
2107 | ||
4660f9c0 | 2108 | /* balancing f2fs's metadata in background */ |
7bcd0cfa | 2109 | f2fs_balance_fs_bg(sbi, true); |
e05df3b1 | 2110 | |
a7fdffbd | 2111 | /* collect a number of dirty node pages and write together */ |
812a9597 JK |
2112 | if (wbc->sync_mode != WB_SYNC_ALL && |
2113 | get_pages(sbi, F2FS_DIRTY_NODES) < | |
2114 | nr_pages_to_skip(sbi, NODE)) | |
d3baf95d | 2115 | goto skip_write; |
a7fdffbd | 2116 | |
c29fd0c0 CY |
2117 | if (wbc->sync_mode == WB_SYNC_ALL) |
2118 | atomic_inc(&sbi->wb_sync_req[NODE]); | |
34415099 CY |
2119 | else if (atomic_read(&sbi->wb_sync_req[NODE])) { |
2120 | /* to avoid potential deadlock */ | |
2121 | if (current->plug) | |
2122 | blk_finish_plug(current->plug); | |
c29fd0c0 | 2123 | goto skip_write; |
34415099 | 2124 | } |
c29fd0c0 | 2125 | |
d31c7c3f YH |
2126 | trace_f2fs_writepages(mapping->host, wbc, NODE); |
2127 | ||
50c8cdb3 | 2128 | diff = nr_pages_to_write(sbi, NODE, wbc); |
9dfa1baf | 2129 | blk_start_plug(&plug); |
4d57b86d | 2130 | f2fs_sync_node_pages(sbi, wbc, true, FS_NODE_IO); |
9dfa1baf | 2131 | blk_finish_plug(&plug); |
50c8cdb3 | 2132 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); |
c29fd0c0 CY |
2133 | |
2134 | if (wbc->sync_mode == WB_SYNC_ALL) | |
2135 | atomic_dec(&sbi->wb_sync_req[NODE]); | |
e05df3b1 | 2136 | return 0; |
d3baf95d JK |
2137 | |
2138 | skip_write: | |
2139 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_NODES); | |
d31c7c3f | 2140 | trace_f2fs_writepages(mapping->host, wbc, NODE); |
d3baf95d | 2141 | return 0; |
e05df3b1 JK |
2142 | } |
2143 | ||
cbc975b1 MWO |
2144 | static bool f2fs_dirty_node_folio(struct address_space *mapping, |
2145 | struct folio *folio) | |
e05df3b1 | 2146 | { |
cbc975b1 | 2147 | trace_f2fs_set_page_dirty(&folio->page, NODE); |
26c6b887 | 2148 | |
cbc975b1 MWO |
2149 | if (!folio_test_uptodate(folio)) |
2150 | folio_mark_uptodate(folio); | |
54c55c4e | 2151 | #ifdef CONFIG_F2FS_CHECK_FS |
cbc975b1 | 2152 | if (IS_INODE(&folio->page)) |
29c87793 | 2153 | f2fs_inode_chksum_set(F2FS_M_SB(mapping), &folio->page); |
54c55c4e | 2154 | #endif |
9b7eadd9 | 2155 | if (filemap_dirty_folio(mapping, folio)) { |
29c87793 | 2156 | inc_page_count(F2FS_M_SB(mapping), F2FS_DIRTY_NODES); |
cbc975b1 MWO |
2157 | set_page_private_reference(&folio->page); |
2158 | return true; | |
e05df3b1 | 2159 | } |
cbc975b1 | 2160 | return false; |
e05df3b1 JK |
2161 | } |
2162 | ||
0a8165d7 | 2163 | /* |
e05df3b1 JK |
2164 | * Structure of the f2fs node operations |
2165 | */ | |
2166 | const struct address_space_operations f2fs_node_aops = { | |
2167 | .writepage = f2fs_write_node_page, | |
2168 | .writepages = f2fs_write_node_pages, | |
cbc975b1 | 2169 | .dirty_folio = f2fs_dirty_node_folio, |
91503996 | 2170 | .invalidate_folio = f2fs_invalidate_folio, |
c26cd045 | 2171 | .release_folio = f2fs_release_folio, |
1d5b9bd6 | 2172 | .migrate_folio = filemap_migrate_folio, |
e05df3b1 JK |
2173 | }; |
2174 | ||
8a7ed66a JK |
2175 | static struct free_nid *__lookup_free_nid_list(struct f2fs_nm_info *nm_i, |
2176 | nid_t n) | |
e05df3b1 | 2177 | { |
8a7ed66a | 2178 | return radix_tree_lookup(&nm_i->free_nid_root, n); |
e05df3b1 JK |
2179 | } |
2180 | ||
9a4ffdf5 | 2181 | static int __insert_free_nid(struct f2fs_sb_info *sbi, |
b815bdc7 | 2182 | struct free_nid *i) |
e05df3b1 | 2183 | { |
b8559dc2 | 2184 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
a0761f63 | 2185 | int err = radix_tree_insert(&nm_i->free_nid_root, i->nid, i); |
5f029c04 | 2186 | |
a0761f63 FL |
2187 | if (err) |
2188 | return err; | |
eb0aa4b8 | 2189 | |
b815bdc7 LS |
2190 | nm_i->nid_cnt[FREE_NID]++; |
2191 | list_add_tail(&i->list, &nm_i->free_nid_list); | |
eb0aa4b8 | 2192 | return 0; |
b8559dc2 CY |
2193 | } |
2194 | ||
9a4ffdf5 | 2195 | static void __remove_free_nid(struct f2fs_sb_info *sbi, |
a0761f63 | 2196 | struct free_nid *i, enum nid_state state) |
b8559dc2 CY |
2197 | { |
2198 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2199 | ||
9a4ffdf5 CY |
2200 | f2fs_bug_on(sbi, state != i->state); |
2201 | nm_i->nid_cnt[state]--; | |
2202 | if (state == FREE_NID) | |
2203 | list_del(&i->list); | |
a0761f63 FL |
2204 | radix_tree_delete(&nm_i->free_nid_root, i->nid); |
2205 | } | |
2206 | ||
2207 | static void __move_free_nid(struct f2fs_sb_info *sbi, struct free_nid *i, | |
2208 | enum nid_state org_state, enum nid_state dst_state) | |
b8559dc2 CY |
2209 | { |
2210 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2211 | ||
a0761f63 FL |
2212 | f2fs_bug_on(sbi, org_state != i->state); |
2213 | i->state = dst_state; | |
2214 | nm_i->nid_cnt[org_state]--; | |
2215 | nm_i->nid_cnt[dst_state]++; | |
2216 | ||
2217 | switch (dst_state) { | |
2218 | case PREALLOC_NID: | |
2219 | list_del(&i->list); | |
2220 | break; | |
2221 | case FREE_NID: | |
2222 | list_add_tail(&i->list, &nm_i->free_nid_list); | |
2223 | break; | |
2224 | default: | |
2225 | BUG_ON(1); | |
2226 | } | |
e05df3b1 JK |
2227 | } |
2228 | ||
94c821fb CY |
2229 | bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi) |
2230 | { | |
2231 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2232 | unsigned int i; | |
2233 | bool ret = true; | |
2234 | ||
e4544b63 | 2235 | f2fs_down_read(&nm_i->nat_tree_lock); |
94c821fb CY |
2236 | for (i = 0; i < nm_i->nat_blocks; i++) { |
2237 | if (!test_bit_le(i, nm_i->nat_block_bitmap)) { | |
2238 | ret = false; | |
2239 | break; | |
2240 | } | |
2241 | } | |
e4544b63 | 2242 | f2fs_up_read(&nm_i->nat_tree_lock); |
94c821fb CY |
2243 | |
2244 | return ret; | |
2245 | } | |
2246 | ||
5921aaa1 L |
2247 | static void update_free_nid_bitmap(struct f2fs_sb_info *sbi, nid_t nid, |
2248 | bool set, bool build) | |
2249 | { | |
2250 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2251 | unsigned int nat_ofs = NAT_BLOCK_OFFSET(nid); | |
2252 | unsigned int nid_ofs = nid - START_NID(nid); | |
2253 | ||
2254 | if (!test_bit_le(nat_ofs, nm_i->nat_block_bitmap)) | |
2255 | return; | |
2256 | ||
2257 | if (set) { | |
2258 | if (test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) | |
2259 | return; | |
2260 | __set_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); | |
2261 | nm_i->free_nid_count[nat_ofs]++; | |
2262 | } else { | |
2263 | if (!test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) | |
2264 | return; | |
2265 | __clear_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); | |
2266 | if (!build) | |
2267 | nm_i->free_nid_count[nat_ofs]--; | |
2268 | } | |
2269 | } | |
2270 | ||
4ac91242 | 2271 | /* return if the nid is recognized as free */ |
5921aaa1 L |
2272 | static bool add_free_nid(struct f2fs_sb_info *sbi, |
2273 | nid_t nid, bool build, bool update) | |
e05df3b1 | 2274 | { |
6fb03f3a | 2275 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
30a61ddf | 2276 | struct free_nid *i, *e; |
59bbd474 | 2277 | struct nat_entry *ne; |
30a61ddf CY |
2278 | int err = -EINVAL; |
2279 | bool ret = false; | |
9198aceb JK |
2280 | |
2281 | /* 0 nid should not be used */ | |
cfb271d4 | 2282 | if (unlikely(nid == 0)) |
4ac91242 | 2283 | return false; |
59bbd474 | 2284 | |
626bcf2b CY |
2285 | if (unlikely(f2fs_check_nid_range(sbi, nid))) |
2286 | return false; | |
2287 | ||
32410577 | 2288 | i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS, true, NULL); |
e05df3b1 | 2289 | i->nid = nid; |
9a4ffdf5 | 2290 | i->state = FREE_NID; |
e05df3b1 | 2291 | |
5921aaa1 | 2292 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 2293 | |
b8559dc2 | 2294 | spin_lock(&nm_i->nid_list_lock); |
30a61ddf CY |
2295 | |
2296 | if (build) { | |
2297 | /* | |
2298 | * Thread A Thread B | |
2299 | * - f2fs_create | |
2300 | * - f2fs_new_inode | |
4d57b86d | 2301 | * - f2fs_alloc_nid |
9a4ffdf5 | 2302 | * - __insert_nid_to_list(PREALLOC_NID) |
30a61ddf | 2303 | * - f2fs_balance_fs_bg |
4d57b86d CY |
2304 | * - f2fs_build_free_nids |
2305 | * - __f2fs_build_free_nids | |
30a61ddf CY |
2306 | * - scan_nat_page |
2307 | * - add_free_nid | |
2308 | * - __lookup_nat_cache | |
2309 | * - f2fs_add_link | |
4d57b86d CY |
2310 | * - f2fs_init_inode_metadata |
2311 | * - f2fs_new_inode_page | |
2312 | * - f2fs_new_node_page | |
30a61ddf | 2313 | * - set_node_addr |
4d57b86d | 2314 | * - f2fs_alloc_nid_done |
9a4ffdf5 CY |
2315 | * - __remove_nid_from_list(PREALLOC_NID) |
2316 | * - __insert_nid_to_list(FREE_NID) | |
30a61ddf CY |
2317 | */ |
2318 | ne = __lookup_nat_cache(nm_i, nid); | |
2319 | if (ne && (!get_nat_flag(ne, IS_CHECKPOINTED) || | |
2320 | nat_get_blkaddr(ne) != NULL_ADDR)) | |
2321 | goto err_out; | |
2322 | ||
2323 | e = __lookup_free_nid_list(nm_i, nid); | |
2324 | if (e) { | |
9a4ffdf5 | 2325 | if (e->state == FREE_NID) |
30a61ddf CY |
2326 | ret = true; |
2327 | goto err_out; | |
2328 | } | |
2329 | } | |
2330 | ret = true; | |
b815bdc7 | 2331 | err = __insert_free_nid(sbi, i); |
30a61ddf | 2332 | err_out: |
5921aaa1 L |
2333 | if (update) { |
2334 | update_free_nid_bitmap(sbi, nid, ret, build); | |
2335 | if (!build) | |
2336 | nm_i->available_nids++; | |
2337 | } | |
eb0aa4b8 JK |
2338 | spin_unlock(&nm_i->nid_list_lock); |
2339 | radix_tree_preload_end(); | |
5921aaa1 | 2340 | |
30a61ddf | 2341 | if (err) |
e05df3b1 | 2342 | kmem_cache_free(free_nid_slab, i); |
30a61ddf | 2343 | return ret; |
e05df3b1 JK |
2344 | } |
2345 | ||
b8559dc2 | 2346 | static void remove_free_nid(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 | 2347 | { |
b8559dc2 | 2348 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
e05df3b1 | 2349 | struct free_nid *i; |
cf0ee0f0 CY |
2350 | bool need_free = false; |
2351 | ||
b8559dc2 | 2352 | spin_lock(&nm_i->nid_list_lock); |
8a7ed66a | 2353 | i = __lookup_free_nid_list(nm_i, nid); |
9a4ffdf5 | 2354 | if (i && i->state == FREE_NID) { |
a0761f63 | 2355 | __remove_free_nid(sbi, i, FREE_NID); |
cf0ee0f0 | 2356 | need_free = true; |
e05df3b1 | 2357 | } |
b8559dc2 | 2358 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 CY |
2359 | |
2360 | if (need_free) | |
2361 | kmem_cache_free(free_nid_slab, i); | |
e05df3b1 JK |
2362 | } |
2363 | ||
e2374015 | 2364 | static int scan_nat_page(struct f2fs_sb_info *sbi, |
e05df3b1 JK |
2365 | struct page *nat_page, nid_t start_nid) |
2366 | { | |
6fb03f3a | 2367 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
e05df3b1 JK |
2368 | struct f2fs_nat_block *nat_blk = page_address(nat_page); |
2369 | block_t blk_addr; | |
4ac91242 | 2370 | unsigned int nat_ofs = NAT_BLOCK_OFFSET(start_nid); |
e05df3b1 JK |
2371 | int i; |
2372 | ||
23380b85 | 2373 | __set_bit_le(nat_ofs, nm_i->nat_block_bitmap); |
4ac91242 | 2374 | |
e05df3b1 JK |
2375 | i = start_nid % NAT_ENTRY_PER_BLOCK; |
2376 | ||
2377 | for (; i < NAT_ENTRY_PER_BLOCK; i++, start_nid++) { | |
cfb271d4 | 2378 | if (unlikely(start_nid >= nm_i->max_nid)) |
04431c44 | 2379 | break; |
23d38844 HL |
2380 | |
2381 | blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr); | |
e2374015 CY |
2382 | |
2383 | if (blk_addr == NEW_ADDR) | |
2384 | return -EINVAL; | |
2385 | ||
5921aaa1 L |
2386 | if (blk_addr == NULL_ADDR) { |
2387 | add_free_nid(sbi, start_nid, true, true); | |
2388 | } else { | |
2389 | spin_lock(&NM_I(sbi)->nid_list_lock); | |
2390 | update_free_nid_bitmap(sbi, start_nid, false, true); | |
2391 | spin_unlock(&NM_I(sbi)->nid_list_lock); | |
2392 | } | |
4ac91242 | 2393 | } |
e2374015 CY |
2394 | |
2395 | return 0; | |
4ac91242 CY |
2396 | } |
2397 | ||
2fbaa25f | 2398 | static void scan_curseg_cache(struct f2fs_sb_info *sbi) |
4ac91242 | 2399 | { |
4ac91242 CY |
2400 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); |
2401 | struct f2fs_journal *journal = curseg->journal; | |
2fbaa25f CY |
2402 | int i; |
2403 | ||
2404 | down_read(&curseg->journal_rwsem); | |
2405 | for (i = 0; i < nats_in_cursum(journal); i++) { | |
2406 | block_t addr; | |
2407 | nid_t nid; | |
2408 | ||
2409 | addr = le32_to_cpu(nat_in_journal(journal, i).block_addr); | |
2410 | nid = le32_to_cpu(nid_in_journal(journal, i)); | |
2411 | if (addr == NULL_ADDR) | |
5921aaa1 | 2412 | add_free_nid(sbi, nid, true, false); |
2fbaa25f CY |
2413 | else |
2414 | remove_free_nid(sbi, nid); | |
2415 | } | |
2416 | up_read(&curseg->journal_rwsem); | |
2417 | } | |
2418 | ||
2419 | static void scan_free_nid_bits(struct f2fs_sb_info *sbi) | |
2420 | { | |
2421 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
4ac91242 | 2422 | unsigned int i, idx; |
97456574 | 2423 | nid_t nid; |
4ac91242 | 2424 | |
e4544b63 | 2425 | f2fs_down_read(&nm_i->nat_tree_lock); |
4ac91242 CY |
2426 | |
2427 | for (i = 0; i < nm_i->nat_blocks; i++) { | |
2428 | if (!test_bit_le(i, nm_i->nat_block_bitmap)) | |
2429 | continue; | |
586d1492 CY |
2430 | if (!nm_i->free_nid_count[i]) |
2431 | continue; | |
4ac91242 | 2432 | for (idx = 0; idx < NAT_ENTRY_PER_BLOCK; idx++) { |
97456574 FL |
2433 | idx = find_next_bit_le(nm_i->free_nid_bitmap[i], |
2434 | NAT_ENTRY_PER_BLOCK, idx); | |
2435 | if (idx >= NAT_ENTRY_PER_BLOCK) | |
2436 | break; | |
4ac91242 CY |
2437 | |
2438 | nid = i * NAT_ENTRY_PER_BLOCK + idx; | |
5921aaa1 | 2439 | add_free_nid(sbi, nid, true, false); |
4ac91242 | 2440 | |
9a4ffdf5 | 2441 | if (nm_i->nid_cnt[FREE_NID] >= MAX_FREE_NIDS) |
4ac91242 CY |
2442 | goto out; |
2443 | } | |
2444 | } | |
2445 | out: | |
2fbaa25f | 2446 | scan_curseg_cache(sbi); |
4ac91242 | 2447 | |
e4544b63 | 2448 | f2fs_up_read(&nm_i->nat_tree_lock); |
e05df3b1 JK |
2449 | } |
2450 | ||
e2374015 | 2451 | static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi, |
4d57b86d | 2452 | bool sync, bool mount) |
e05df3b1 | 2453 | { |
e05df3b1 | 2454 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
e2374015 | 2455 | int i = 0, ret; |
55008d84 | 2456 | nid_t nid = nm_i->next_scan_nid; |
e05df3b1 | 2457 | |
e9cdd307 YH |
2458 | if (unlikely(nid >= nm_i->max_nid)) |
2459 | nid = 0; | |
2460 | ||
e2cab031 ST |
2461 | if (unlikely(nid % NAT_ENTRY_PER_BLOCK)) |
2462 | nid = NAT_BLOCK_OFFSET(nid) * NAT_ENTRY_PER_BLOCK; | |
2463 | ||
55008d84 | 2464 | /* Enough entries */ |
9a4ffdf5 | 2465 | if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) |
e2374015 | 2466 | return 0; |
e05df3b1 | 2467 | |
4d57b86d | 2468 | if (!sync && !f2fs_available_free_memory(sbi, FREE_NIDS)) |
e2374015 | 2469 | return 0; |
e05df3b1 | 2470 | |
4ac91242 CY |
2471 | if (!mount) { |
2472 | /* try to find free nids in free_nid_bitmap */ | |
2473 | scan_free_nid_bits(sbi); | |
2474 | ||
74986213 | 2475 | if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) |
e2374015 | 2476 | return 0; |
22ad0b6a JK |
2477 | } |
2478 | ||
55008d84 | 2479 | /* readahead nat pages to be scanned */ |
4d57b86d | 2480 | f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES, |
26879fb1 | 2481 | META_NAT, true); |
e05df3b1 | 2482 | |
e4544b63 | 2483 | f2fs_down_read(&nm_i->nat_tree_lock); |
a5131193 | 2484 | |
e05df3b1 | 2485 | while (1) { |
66e83361 YH |
2486 | if (!test_bit_le(NAT_BLOCK_OFFSET(nid), |
2487 | nm_i->nat_block_bitmap)) { | |
2488 | struct page *page = get_current_nat_page(sbi, nid); | |
e05df3b1 | 2489 | |
edc55aaf JK |
2490 | if (IS_ERR(page)) { |
2491 | ret = PTR_ERR(page); | |
2492 | } else { | |
2493 | ret = scan_nat_page(sbi, page, nid); | |
2494 | f2fs_put_page(page, 1); | |
2495 | } | |
e2374015 CY |
2496 | |
2497 | if (ret) { | |
e4544b63 | 2498 | f2fs_up_read(&nm_i->nat_tree_lock); |
dcbb4c10 | 2499 | f2fs_err(sbi, "NAT is corrupt, run fsck to fix it"); |
edc55aaf | 2500 | return ret; |
e2374015 | 2501 | } |
66e83361 | 2502 | } |
e05df3b1 JK |
2503 | |
2504 | nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK)); | |
cfb271d4 | 2505 | if (unlikely(nid >= nm_i->max_nid)) |
e05df3b1 | 2506 | nid = 0; |
55008d84 | 2507 | |
a6d494b6 | 2508 | if (++i >= FREE_NID_PAGES) |
e05df3b1 JK |
2509 | break; |
2510 | } | |
2511 | ||
55008d84 JK |
2512 | /* go to the next free nat pages to find free nids abundantly */ |
2513 | nm_i->next_scan_nid = nid; | |
e05df3b1 JK |
2514 | |
2515 | /* find free nids from current sum_pages */ | |
2fbaa25f | 2516 | scan_curseg_cache(sbi); |
dfc08a12 | 2517 | |
e4544b63 | 2518 | f2fs_up_read(&nm_i->nat_tree_lock); |
2db2388f | 2519 | |
4d57b86d | 2520 | f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nm_i->next_scan_nid), |
ea1a29a0 | 2521 | nm_i->ra_nid_pages, META_NAT, false); |
e2374015 CY |
2522 | |
2523 | return 0; | |
e05df3b1 JK |
2524 | } |
2525 | ||
e2374015 | 2526 | int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount) |
2411cf5b | 2527 | { |
e2374015 CY |
2528 | int ret; |
2529 | ||
2411cf5b | 2530 | mutex_lock(&NM_I(sbi)->build_lock); |
e2374015 | 2531 | ret = __f2fs_build_free_nids(sbi, sync, mount); |
2411cf5b | 2532 | mutex_unlock(&NM_I(sbi)->build_lock); |
e2374015 CY |
2533 | |
2534 | return ret; | |
2411cf5b CY |
2535 | } |
2536 | ||
e05df3b1 JK |
2537 | /* |
2538 | * If this function returns success, caller can obtain a new nid | |
2539 | * from second parameter of this function. | |
2540 | * The returned nid could be used ino as well as nid when inode is created. | |
2541 | */ | |
4d57b86d | 2542 | bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid) |
e05df3b1 JK |
2543 | { |
2544 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2545 | struct free_nid *i = NULL; | |
e05df3b1 | 2546 | retry: |
55523519 | 2547 | if (time_to_inject(sbi, FAULT_ALLOC_NID)) { |
c45d6002 | 2548 | f2fs_show_injection_info(sbi, FAULT_ALLOC_NID); |
cb78942b | 2549 | return false; |
55523519 | 2550 | } |
7fa750a1 | 2551 | |
b8559dc2 | 2552 | spin_lock(&nm_i->nid_list_lock); |
e05df3b1 | 2553 | |
04d47e67 CY |
2554 | if (unlikely(nm_i->available_nids == 0)) { |
2555 | spin_unlock(&nm_i->nid_list_lock); | |
2556 | return false; | |
2557 | } | |
e05df3b1 | 2558 | |
4d57b86d CY |
2559 | /* We should not use stale free nids created by f2fs_build_free_nids */ |
2560 | if (nm_i->nid_cnt[FREE_NID] && !on_f2fs_build_free_nids(nm_i)) { | |
9a4ffdf5 CY |
2561 | f2fs_bug_on(sbi, list_empty(&nm_i->free_nid_list)); |
2562 | i = list_first_entry(&nm_i->free_nid_list, | |
b8559dc2 | 2563 | struct free_nid, list); |
55008d84 | 2564 | *nid = i->nid; |
b8559dc2 | 2565 | |
a0761f63 | 2566 | __move_free_nid(sbi, i, FREE_NID, PREALLOC_NID); |
04d47e67 | 2567 | nm_i->available_nids--; |
4ac91242 | 2568 | |
346fe752 | 2569 | update_free_nid_bitmap(sbi, *nid, false, false); |
4ac91242 | 2570 | |
b8559dc2 | 2571 | spin_unlock(&nm_i->nid_list_lock); |
55008d84 JK |
2572 | return true; |
2573 | } | |
b8559dc2 | 2574 | spin_unlock(&nm_i->nid_list_lock); |
55008d84 JK |
2575 | |
2576 | /* Let's scan nat pages and its caches to get free nids */ | |
f84262b0 JK |
2577 | if (!f2fs_build_free_nids(sbi, true, false)) |
2578 | goto retry; | |
2579 | return false; | |
e05df3b1 JK |
2580 | } |
2581 | ||
0a8165d7 | 2582 | /* |
4d57b86d | 2583 | * f2fs_alloc_nid() should be called prior to this function. |
e05df3b1 | 2584 | */ |
4d57b86d | 2585 | void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 JK |
2586 | { |
2587 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2588 | struct free_nid *i; | |
2589 | ||
b8559dc2 | 2590 | spin_lock(&nm_i->nid_list_lock); |
8a7ed66a | 2591 | i = __lookup_free_nid_list(nm_i, nid); |
b8559dc2 | 2592 | f2fs_bug_on(sbi, !i); |
a0761f63 | 2593 | __remove_free_nid(sbi, i, PREALLOC_NID); |
b8559dc2 | 2594 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 CY |
2595 | |
2596 | kmem_cache_free(free_nid_slab, i); | |
e05df3b1 JK |
2597 | } |
2598 | ||
0a8165d7 | 2599 | /* |
4d57b86d | 2600 | * f2fs_alloc_nid() should be called prior to this function. |
e05df3b1 | 2601 | */ |
4d57b86d | 2602 | void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 | 2603 | { |
49952fa1 JK |
2604 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
2605 | struct free_nid *i; | |
cf0ee0f0 | 2606 | bool need_free = false; |
49952fa1 | 2607 | |
65985d93 JK |
2608 | if (!nid) |
2609 | return; | |
2610 | ||
b8559dc2 | 2611 | spin_lock(&nm_i->nid_list_lock); |
8a7ed66a | 2612 | i = __lookup_free_nid_list(nm_i, nid); |
b8559dc2 CY |
2613 | f2fs_bug_on(sbi, !i); |
2614 | ||
4d57b86d | 2615 | if (!f2fs_available_free_memory(sbi, FREE_NIDS)) { |
a0761f63 | 2616 | __remove_free_nid(sbi, i, PREALLOC_NID); |
cf0ee0f0 | 2617 | need_free = true; |
95630cba | 2618 | } else { |
a0761f63 | 2619 | __move_free_nid(sbi, i, PREALLOC_NID, FREE_NID); |
95630cba | 2620 | } |
04d47e67 CY |
2621 | |
2622 | nm_i->available_nids++; | |
2623 | ||
346fe752 | 2624 | update_free_nid_bitmap(sbi, nid, true, false); |
4ac91242 | 2625 | |
b8559dc2 | 2626 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 CY |
2627 | |
2628 | if (need_free) | |
2629 | kmem_cache_free(free_nid_slab, i); | |
e05df3b1 JK |
2630 | } |
2631 | ||
4d57b86d | 2632 | int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink) |
31696580 CY |
2633 | { |
2634 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
31696580 CY |
2635 | int nr = nr_shrink; |
2636 | ||
9a4ffdf5 | 2637 | if (nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) |
ad4edb83 JK |
2638 | return 0; |
2639 | ||
31696580 CY |
2640 | if (!mutex_trylock(&nm_i->build_lock)) |
2641 | return 0; | |
2642 | ||
042be373 CY |
2643 | while (nr_shrink && nm_i->nid_cnt[FREE_NID] > MAX_FREE_NIDS) { |
2644 | struct free_nid *i, *next; | |
2645 | unsigned int batch = SHRINK_NID_BATCH_SIZE; | |
b8559dc2 | 2646 | |
042be373 CY |
2647 | spin_lock(&nm_i->nid_list_lock); |
2648 | list_for_each_entry_safe(i, next, &nm_i->free_nid_list, list) { | |
2649 | if (!nr_shrink || !batch || | |
2650 | nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) | |
2651 | break; | |
2652 | __remove_free_nid(sbi, i, FREE_NID); | |
2653 | kmem_cache_free(free_nid_slab, i); | |
2654 | nr_shrink--; | |
2655 | batch--; | |
2656 | } | |
2657 | spin_unlock(&nm_i->nid_list_lock); | |
31696580 | 2658 | } |
042be373 | 2659 | |
31696580 CY |
2660 | mutex_unlock(&nm_i->build_lock); |
2661 | ||
2662 | return nr - nr_shrink; | |
2663 | } | |
2664 | ||
9627a7b3 | 2665 | int f2fs_recover_inline_xattr(struct inode *inode, struct page *page) |
28cdce04 | 2666 | { |
28cdce04 CY |
2667 | void *src_addr, *dst_addr; |
2668 | size_t inline_size; | |
2669 | struct page *ipage; | |
2670 | struct f2fs_inode *ri; | |
2671 | ||
4d57b86d | 2672 | ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino); |
9627a7b3 CY |
2673 | if (IS_ERR(ipage)) |
2674 | return PTR_ERR(ipage); | |
28cdce04 | 2675 | |
e3b4d43f | 2676 | ri = F2FS_INODE(page); |
1eca05aa | 2677 | if (ri->i_inline & F2FS_INLINE_XATTR) { |
96dd0251 CY |
2678 | if (!f2fs_has_inline_xattr(inode)) { |
2679 | set_inode_flag(inode, FI_INLINE_XATTR); | |
2680 | stat_inc_inline_xattr(inode); | |
2681 | } | |
1eca05aa | 2682 | } else { |
96dd0251 CY |
2683 | if (f2fs_has_inline_xattr(inode)) { |
2684 | stat_dec_inline_xattr(inode); | |
2685 | clear_inode_flag(inode, FI_INLINE_XATTR); | |
2686 | } | |
e3b4d43f JK |
2687 | goto update_inode; |
2688 | } | |
2689 | ||
6afc662e CY |
2690 | dst_addr = inline_xattr_addr(inode, ipage); |
2691 | src_addr = inline_xattr_addr(inode, page); | |
28cdce04 CY |
2692 | inline_size = inline_xattr_size(inode); |
2693 | ||
bae0ee7a | 2694 | f2fs_wait_on_page_writeback(ipage, NODE, true, true); |
28cdce04 | 2695 | memcpy(dst_addr, src_addr, inline_size); |
e3b4d43f | 2696 | update_inode: |
4d57b86d | 2697 | f2fs_update_inode(inode, ipage); |
28cdce04 | 2698 | f2fs_put_page(ipage, 1); |
9627a7b3 | 2699 | return 0; |
28cdce04 CY |
2700 | } |
2701 | ||
4d57b86d | 2702 | int f2fs_recover_xattr_data(struct inode *inode, struct page *page) |
abb2366c | 2703 | { |
4081363f | 2704 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
abb2366c | 2705 | nid_t prev_xnid = F2FS_I(inode)->i_xattr_nid; |
87905682 YH |
2706 | nid_t new_xnid; |
2707 | struct dnode_of_data dn; | |
abb2366c | 2708 | struct node_info ni; |
d260081c | 2709 | struct page *xpage; |
7735730d | 2710 | int err; |
abb2366c | 2711 | |
abb2366c JK |
2712 | if (!prev_xnid) |
2713 | goto recover_xnid; | |
2714 | ||
d260081c | 2715 | /* 1: invalidate the previous xattr nid */ |
a9419b63 | 2716 | err = f2fs_get_node_info(sbi, prev_xnid, &ni, false); |
7735730d CY |
2717 | if (err) |
2718 | return err; | |
2719 | ||
4d57b86d | 2720 | f2fs_invalidate_blocks(sbi, ni.blk_addr); |
000519f2 | 2721 | dec_valid_node_count(sbi, inode, false); |
479f40c4 | 2722 | set_node_addr(sbi, &ni, NULL_ADDR, false); |
abb2366c JK |
2723 | |
2724 | recover_xnid: | |
d260081c | 2725 | /* 2: update xattr nid in inode */ |
4d57b86d | 2726 | if (!f2fs_alloc_nid(sbi, &new_xnid)) |
87905682 YH |
2727 | return -ENOSPC; |
2728 | ||
2729 | set_new_dnode(&dn, inode, NULL, NULL, new_xnid); | |
4d57b86d | 2730 | xpage = f2fs_new_node_page(&dn, XATTR_NODE_OFFSET); |
87905682 | 2731 | if (IS_ERR(xpage)) { |
4d57b86d | 2732 | f2fs_alloc_nid_failed(sbi, new_xnid); |
87905682 YH |
2733 | return PTR_ERR(xpage); |
2734 | } | |
2735 | ||
4d57b86d CY |
2736 | f2fs_alloc_nid_done(sbi, new_xnid); |
2737 | f2fs_update_inode_page(inode); | |
d260081c CY |
2738 | |
2739 | /* 3: update and set xattr node page dirty */ | |
87905682 | 2740 | memcpy(F2FS_NODE(xpage), F2FS_NODE(page), VALID_XATTR_BLOCK_SIZE); |
abb2366c | 2741 | |
d260081c CY |
2742 | set_page_dirty(xpage); |
2743 | f2fs_put_page(xpage, 1); | |
abb2366c | 2744 | |
d260081c | 2745 | return 0; |
abb2366c JK |
2746 | } |
2747 | ||
4d57b86d | 2748 | int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page) |
e05df3b1 | 2749 | { |
58bfaf44 | 2750 | struct f2fs_inode *src, *dst; |
e05df3b1 JK |
2751 | nid_t ino = ino_of_node(page); |
2752 | struct node_info old_ni, new_ni; | |
2753 | struct page *ipage; | |
7735730d | 2754 | int err; |
e05df3b1 | 2755 | |
a9419b63 | 2756 | err = f2fs_get_node_info(sbi, ino, &old_ni, false); |
7735730d CY |
2757 | if (err) |
2758 | return err; | |
e8271fa3 JK |
2759 | |
2760 | if (unlikely(old_ni.blk_addr != NULL_ADDR)) | |
2761 | return -EINVAL; | |
e8ea9b3d | 2762 | retry: |
300e129c | 2763 | ipage = f2fs_grab_cache_page(NODE_MAPPING(sbi), ino, false); |
e8ea9b3d | 2764 | if (!ipage) { |
4034247a | 2765 | memalloc_retry_wait(GFP_NOFS); |
e8ea9b3d JK |
2766 | goto retry; |
2767 | } | |
e05df3b1 | 2768 | |
e1c42045 | 2769 | /* Should not use this inode from free nid list */ |
b8559dc2 | 2770 | remove_free_nid(sbi, ino); |
e05df3b1 | 2771 | |
237c0790 JK |
2772 | if (!PageUptodate(ipage)) |
2773 | SetPageUptodate(ipage); | |
e05df3b1 | 2774 | fill_node_footer(ipage, ino, ino, 0, true); |
ef2a0071 | 2775 | set_cold_node(ipage, false); |
e05df3b1 | 2776 | |
58bfaf44 JK |
2777 | src = F2FS_INODE(page); |
2778 | dst = F2FS_INODE(ipage); | |
e05df3b1 | 2779 | |
36218b81 | 2780 | memcpy(dst, src, offsetof(struct f2fs_inode, i_ext)); |
58bfaf44 JK |
2781 | dst->i_size = 0; |
2782 | dst->i_blocks = cpu_to_le64(1); | |
2783 | dst->i_links = cpu_to_le32(1); | |
2784 | dst->i_xattr_nid = 0; | |
7a2af766 | 2785 | dst->i_inline = src->i_inline & (F2FS_INLINE_XATTR | F2FS_EXTRA_ATTR); |
5c57132e | 2786 | if (dst->i_inline & F2FS_EXTRA_ATTR) { |
7a2af766 | 2787 | dst->i_extra_isize = src->i_extra_isize; |
6afc662e | 2788 | |
7beb01f7 | 2789 | if (f2fs_sb_has_flexible_inline_xattr(sbi) && |
6afc662e CY |
2790 | F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), |
2791 | i_inline_xattr_size)) | |
2792 | dst->i_inline_xattr_size = src->i_inline_xattr_size; | |
2793 | ||
7beb01f7 | 2794 | if (f2fs_sb_has_project_quota(sbi) && |
5c57132e CY |
2795 | F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), |
2796 | i_projid)) | |
2797 | dst->i_projid = src->i_projid; | |
5cd1f387 | 2798 | |
7beb01f7 | 2799 | if (f2fs_sb_has_inode_crtime(sbi) && |
5cd1f387 CY |
2800 | F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), |
2801 | i_crtime_nsec)) { | |
2802 | dst->i_crtime = src->i_crtime; | |
2803 | dst->i_crtime_nsec = src->i_crtime_nsec; | |
2804 | } | |
5c57132e | 2805 | } |
e05df3b1 JK |
2806 | |
2807 | new_ni = old_ni; | |
2808 | new_ni.ino = ino; | |
2809 | ||
0abd675e | 2810 | if (unlikely(inc_valid_node_count(sbi, NULL, true))) |
65e5cd0a | 2811 | WARN_ON(1); |
479f40c4 | 2812 | set_node_addr(sbi, &new_ni, NEW_ADDR, false); |
e05df3b1 | 2813 | inc_valid_inode_count(sbi); |
617deb8c | 2814 | set_page_dirty(ipage); |
e05df3b1 JK |
2815 | f2fs_put_page(ipage, 1); |
2816 | return 0; | |
2817 | } | |
2818 | ||
7735730d | 2819 | int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, |
e05df3b1 JK |
2820 | unsigned int segno, struct f2fs_summary_block *sum) |
2821 | { | |
2822 | struct f2fs_node *rn; | |
2823 | struct f2fs_summary *sum_entry; | |
e05df3b1 | 2824 | block_t addr; |
9ecf4b80 | 2825 | int i, idx, last_offset, nrpages; |
e05df3b1 JK |
2826 | |
2827 | /* scan the node segment */ | |
2828 | last_offset = sbi->blocks_per_seg; | |
2829 | addr = START_BLOCK(sbi, segno); | |
2830 | sum_entry = &sum->entries[0]; | |
2831 | ||
9ecf4b80 | 2832 | for (i = 0; i < last_offset; i += nrpages, addr += nrpages) { |
5f7136db | 2833 | nrpages = bio_max_segs(last_offset - i); |
393ff91f | 2834 | |
e1c42045 | 2835 | /* readahead node pages */ |
4d57b86d | 2836 | f2fs_ra_meta_pages(sbi, addr, nrpages, META_POR, true); |
e05df3b1 | 2837 | |
9ecf4b80 | 2838 | for (idx = addr; idx < addr + nrpages; idx++) { |
4d57b86d | 2839 | struct page *page = f2fs_get_tmp_page(sbi, idx); |
9af0ff1c | 2840 | |
7735730d CY |
2841 | if (IS_ERR(page)) |
2842 | return PTR_ERR(page); | |
2843 | ||
9ecf4b80 CY |
2844 | rn = F2FS_NODE(page); |
2845 | sum_entry->nid = rn->footer.nid; | |
2846 | sum_entry->version = 0; | |
2847 | sum_entry->ofs_in_node = 0; | |
2848 | sum_entry++; | |
2849 | f2fs_put_page(page, 1); | |
9af0ff1c | 2850 | } |
bac4eef6 | 2851 | |
9ecf4b80 | 2852 | invalidate_mapping_pages(META_MAPPING(sbi), addr, |
bac4eef6 | 2853 | addr + nrpages); |
e05df3b1 | 2854 | } |
7735730d | 2855 | return 0; |
e05df3b1 JK |
2856 | } |
2857 | ||
aec71382 | 2858 | static void remove_nats_in_journal(struct f2fs_sb_info *sbi) |
e05df3b1 JK |
2859 | { |
2860 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2861 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 2862 | struct f2fs_journal *journal = curseg->journal; |
e05df3b1 JK |
2863 | int i; |
2864 | ||
b7ad7512 | 2865 | down_write(&curseg->journal_rwsem); |
dfc08a12 | 2866 | for (i = 0; i < nats_in_cursum(journal); i++) { |
e05df3b1 JK |
2867 | struct nat_entry *ne; |
2868 | struct f2fs_nat_entry raw_ne; | |
dfc08a12 | 2869 | nid_t nid = le32_to_cpu(nid_in_journal(journal, i)); |
e05df3b1 | 2870 | |
b862676e CY |
2871 | if (f2fs_check_nid_range(sbi, nid)) |
2872 | continue; | |
2873 | ||
dfc08a12 | 2874 | raw_ne = nat_in_journal(journal, i); |
9be32d72 | 2875 | |
e05df3b1 | 2876 | ne = __lookup_nat_cache(nm_i, nid); |
e05df3b1 | 2877 | if (!ne) { |
32410577 | 2878 | ne = __alloc_nat_entry(sbi, nid, true); |
12f9ef37 | 2879 | __init_nat_entry(nm_i, ne, &raw_ne, true); |
e05df3b1 | 2880 | } |
04d47e67 CY |
2881 | |
2882 | /* | |
2883 | * if a free nat in journal has not been used after last | |
2884 | * checkpoint, we should remove it from available nids, | |
2885 | * since later we will add it again. | |
2886 | */ | |
2887 | if (!get_nat_flag(ne, IS_DIRTY) && | |
2888 | le32_to_cpu(raw_ne.block_addr) == NULL_ADDR) { | |
2889 | spin_lock(&nm_i->nid_list_lock); | |
2890 | nm_i->available_nids--; | |
2891 | spin_unlock(&nm_i->nid_list_lock); | |
2892 | } | |
2893 | ||
e05df3b1 | 2894 | __set_nat_cache_dirty(nm_i, ne); |
e05df3b1 | 2895 | } |
dfc08a12 | 2896 | update_nats_in_cursum(journal, -i); |
b7ad7512 | 2897 | up_write(&curseg->journal_rwsem); |
e05df3b1 JK |
2898 | } |
2899 | ||
309cc2b6 JK |
2900 | static void __adjust_nat_entry_set(struct nat_entry_set *nes, |
2901 | struct list_head *head, int max) | |
e05df3b1 | 2902 | { |
309cc2b6 | 2903 | struct nat_entry_set *cur; |
e05df3b1 | 2904 | |
309cc2b6 JK |
2905 | if (nes->entry_cnt >= max) |
2906 | goto add_out; | |
e05df3b1 | 2907 | |
309cc2b6 JK |
2908 | list_for_each_entry(cur, head, set_list) { |
2909 | if (cur->entry_cnt >= nes->entry_cnt) { | |
2910 | list_add(&nes->set_list, cur->set_list.prev); | |
2911 | return; | |
2912 | } | |
aec71382 | 2913 | } |
309cc2b6 JK |
2914 | add_out: |
2915 | list_add_tail(&nes->set_list, head); | |
2916 | } | |
e05df3b1 | 2917 | |
94c821fb CY |
2918 | static void __update_nat_bits(struct f2fs_nm_info *nm_i, unsigned int nat_ofs, |
2919 | unsigned int valid) | |
2920 | { | |
2921 | if (valid == 0) { | |
2922 | __set_bit_le(nat_ofs, nm_i->empty_nat_bits); | |
2923 | __clear_bit_le(nat_ofs, nm_i->full_nat_bits); | |
2924 | return; | |
2925 | } | |
2926 | ||
2927 | __clear_bit_le(nat_ofs, nm_i->empty_nat_bits); | |
2928 | if (valid == NAT_ENTRY_PER_BLOCK) | |
2929 | __set_bit_le(nat_ofs, nm_i->full_nat_bits); | |
2930 | else | |
2931 | __clear_bit_le(nat_ofs, nm_i->full_nat_bits); | |
2932 | } | |
2933 | ||
2934 | static void update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid, | |
22ad0b6a JK |
2935 | struct page *page) |
2936 | { | |
2937 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2938 | unsigned int nat_index = start_nid / NAT_ENTRY_PER_BLOCK; | |
2939 | struct f2fs_nat_block *nat_blk = page_address(page); | |
2940 | int valid = 0; | |
37a0ab2a | 2941 | int i = 0; |
22ad0b6a | 2942 | |
94c821fb | 2943 | if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG)) |
22ad0b6a JK |
2944 | return; |
2945 | ||
37a0ab2a FL |
2946 | if (nat_index == 0) { |
2947 | valid = 1; | |
2948 | i = 1; | |
2949 | } | |
2950 | for (; i < NAT_ENTRY_PER_BLOCK; i++) { | |
36af5f40 | 2951 | if (le32_to_cpu(nat_blk->entries[i].block_addr) != NULL_ADDR) |
22ad0b6a JK |
2952 | valid++; |
2953 | } | |
94c821fb CY |
2954 | |
2955 | __update_nat_bits(nm_i, nat_index, valid); | |
2956 | } | |
2957 | ||
2958 | void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi) | |
2959 | { | |
2960 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2961 | unsigned int nat_ofs; | |
2962 | ||
e4544b63 | 2963 | f2fs_down_read(&nm_i->nat_tree_lock); |
94c821fb CY |
2964 | |
2965 | for (nat_ofs = 0; nat_ofs < nm_i->nat_blocks; nat_ofs++) { | |
2966 | unsigned int valid = 0, nid_ofs = 0; | |
2967 | ||
2968 | /* handle nid zero due to it should never be used */ | |
2969 | if (unlikely(nat_ofs == 0)) { | |
2970 | valid = 1; | |
2971 | nid_ofs = 1; | |
2972 | } | |
2973 | ||
2974 | for (; nid_ofs < NAT_ENTRY_PER_BLOCK; nid_ofs++) { | |
2975 | if (!test_bit_le(nid_ofs, | |
2976 | nm_i->free_nid_bitmap[nat_ofs])) | |
2977 | valid++; | |
2978 | } | |
2979 | ||
2980 | __update_nat_bits(nm_i, nat_ofs, valid); | |
22ad0b6a JK |
2981 | } |
2982 | ||
e4544b63 | 2983 | f2fs_up_read(&nm_i->nat_tree_lock); |
22ad0b6a JK |
2984 | } |
2985 | ||
edc55aaf | 2986 | static int __flush_nat_entry_set(struct f2fs_sb_info *sbi, |
22ad0b6a | 2987 | struct nat_entry_set *set, struct cp_control *cpc) |
309cc2b6 JK |
2988 | { |
2989 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 2990 | struct f2fs_journal *journal = curseg->journal; |
309cc2b6 JK |
2991 | nid_t start_nid = set->set * NAT_ENTRY_PER_BLOCK; |
2992 | bool to_journal = true; | |
2993 | struct f2fs_nat_block *nat_blk; | |
2994 | struct nat_entry *ne, *cur; | |
2995 | struct page *page = NULL; | |
e05df3b1 | 2996 | |
aec71382 CY |
2997 | /* |
2998 | * there are two steps to flush nat entries: | |
2999 | * #1, flush nat entries to journal in current hot data summary block. | |
3000 | * #2, flush nat entries to nat page. | |
3001 | */ | |
94c821fb | 3002 | if ((cpc->reason & CP_UMOUNT) || |
22ad0b6a | 3003 | !__has_cursum_space(journal, set->entry_cnt, NAT_JOURNAL)) |
309cc2b6 JK |
3004 | to_journal = false; |
3005 | ||
3006 | if (to_journal) { | |
b7ad7512 | 3007 | down_write(&curseg->journal_rwsem); |
309cc2b6 JK |
3008 | } else { |
3009 | page = get_next_nat_page(sbi, start_nid); | |
edc55aaf JK |
3010 | if (IS_ERR(page)) |
3011 | return PTR_ERR(page); | |
3012 | ||
309cc2b6 JK |
3013 | nat_blk = page_address(page); |
3014 | f2fs_bug_on(sbi, !nat_blk); | |
3015 | } | |
aec71382 | 3016 | |
309cc2b6 JK |
3017 | /* flush dirty nats in nat entry set */ |
3018 | list_for_each_entry_safe(ne, cur, &set->entry_list, list) { | |
3019 | struct f2fs_nat_entry *raw_ne; | |
3020 | nid_t nid = nat_get_nid(ne); | |
3021 | int offset; | |
3022 | ||
febeca6d | 3023 | f2fs_bug_on(sbi, nat_get_blkaddr(ne) == NEW_ADDR); |
aec71382 CY |
3024 | |
3025 | if (to_journal) { | |
4d57b86d | 3026 | offset = f2fs_lookup_journal_in_cursum(journal, |
309cc2b6 JK |
3027 | NAT_JOURNAL, nid, 1); |
3028 | f2fs_bug_on(sbi, offset < 0); | |
dfc08a12 CY |
3029 | raw_ne = &nat_in_journal(journal, offset); |
3030 | nid_in_journal(journal, offset) = cpu_to_le32(nid); | |
aec71382 | 3031 | } else { |
309cc2b6 | 3032 | raw_ne = &nat_blk->entries[nid - start_nid]; |
e05df3b1 | 3033 | } |
309cc2b6 | 3034 | raw_nat_from_node_info(raw_ne, &ne->ni); |
309cc2b6 | 3035 | nat_reset_flag(ne); |
0b28b71e | 3036 | __clear_nat_cache_dirty(NM_I(sbi), set, ne); |
04d47e67 | 3037 | if (nat_get_blkaddr(ne) == NULL_ADDR) { |
5921aaa1 | 3038 | add_free_nid(sbi, nid, false, true); |
4ac91242 CY |
3039 | } else { |
3040 | spin_lock(&NM_I(sbi)->nid_list_lock); | |
346fe752 | 3041 | update_free_nid_bitmap(sbi, nid, false, false); |
04d47e67 CY |
3042 | spin_unlock(&NM_I(sbi)->nid_list_lock); |
3043 | } | |
309cc2b6 | 3044 | } |
e05df3b1 | 3045 | |
22ad0b6a | 3046 | if (to_journal) { |
b7ad7512 | 3047 | up_write(&curseg->journal_rwsem); |
22ad0b6a | 3048 | } else { |
94c821fb | 3049 | update_nat_bits(sbi, start_nid, page); |
309cc2b6 | 3050 | f2fs_put_page(page, 1); |
22ad0b6a | 3051 | } |
aec71382 | 3052 | |
59c9081b YH |
3053 | /* Allow dirty nats by node block allocation in write_begin */ |
3054 | if (!set->entry_cnt) { | |
3055 | radix_tree_delete(&NM_I(sbi)->nat_set_root, set->set); | |
3056 | kmem_cache_free(nat_entry_set_slab, set); | |
3057 | } | |
edc55aaf | 3058 | return 0; |
309cc2b6 | 3059 | } |
aec71382 | 3060 | |
309cc2b6 JK |
3061 | /* |
3062 | * This function is called during the checkpointing process. | |
3063 | */ | |
edc55aaf | 3064 | int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
309cc2b6 JK |
3065 | { |
3066 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3067 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 3068 | struct f2fs_journal *journal = curseg->journal; |
7aed0d45 | 3069 | struct nat_entry_set *setvec[SETVEC_SIZE]; |
309cc2b6 JK |
3070 | struct nat_entry_set *set, *tmp; |
3071 | unsigned int found; | |
3072 | nid_t set_idx = 0; | |
3073 | LIST_HEAD(sets); | |
edc55aaf | 3074 | int err = 0; |
309cc2b6 | 3075 | |
a95ba66a JK |
3076 | /* |
3077 | * during unmount, let's flush nat_bits before checking | |
3078 | * nat_cnt[DIRTY_NAT]. | |
3079 | */ | |
94c821fb | 3080 | if (cpc->reason & CP_UMOUNT) { |
e4544b63 | 3081 | f2fs_down_write(&nm_i->nat_tree_lock); |
7f2ecdd8 | 3082 | remove_nats_in_journal(sbi); |
e4544b63 | 3083 | f2fs_up_write(&nm_i->nat_tree_lock); |
7f2ecdd8 JK |
3084 | } |
3085 | ||
a95ba66a | 3086 | if (!nm_i->nat_cnt[DIRTY_NAT]) |
edc55aaf | 3087 | return 0; |
a5131193 | 3088 | |
e4544b63 | 3089 | f2fs_down_write(&nm_i->nat_tree_lock); |
a5131193 | 3090 | |
309cc2b6 JK |
3091 | /* |
3092 | * if there are no enough space in journal to store dirty nat | |
3093 | * entries, remove all entries from journal and merge them | |
3094 | * into nat entry set. | |
3095 | */ | |
94c821fb | 3096 | if (cpc->reason & CP_UMOUNT || |
a95ba66a JK |
3097 | !__has_cursum_space(journal, |
3098 | nm_i->nat_cnt[DIRTY_NAT], NAT_JOURNAL)) | |
309cc2b6 JK |
3099 | remove_nats_in_journal(sbi); |
3100 | ||
309cc2b6 | 3101 | while ((found = __gang_lookup_nat_set(nm_i, |
7aed0d45 | 3102 | set_idx, SETVEC_SIZE, setvec))) { |
309cc2b6 | 3103 | unsigned idx; |
5f029c04 | 3104 | |
309cc2b6 JK |
3105 | set_idx = setvec[found - 1]->set + 1; |
3106 | for (idx = 0; idx < found; idx++) | |
3107 | __adjust_nat_entry_set(setvec[idx], &sets, | |
dfc08a12 | 3108 | MAX_NAT_JENTRIES(journal)); |
e05df3b1 | 3109 | } |
aec71382 | 3110 | |
309cc2b6 | 3111 | /* flush dirty nats in nat entry set */ |
edc55aaf JK |
3112 | list_for_each_entry_safe(set, tmp, &sets, set_list) { |
3113 | err = __flush_nat_entry_set(sbi, set, cpc); | |
3114 | if (err) | |
3115 | break; | |
3116 | } | |
309cc2b6 | 3117 | |
e4544b63 | 3118 | f2fs_up_write(&nm_i->nat_tree_lock); |
59c9081b | 3119 | /* Allow dirty nats by node block allocation in write_begin */ |
edc55aaf JK |
3120 | |
3121 | return err; | |
e05df3b1 JK |
3122 | } |
3123 | ||
22ad0b6a JK |
3124 | static int __get_nat_bitmaps(struct f2fs_sb_info *sbi) |
3125 | { | |
3126 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
3127 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3128 | unsigned int nat_bits_bytes = nm_i->nat_blocks / BITS_PER_BYTE; | |
3129 | unsigned int i; | |
3130 | __u64 cp_ver = cur_cp_version(ckpt); | |
22ad0b6a JK |
3131 | block_t nat_bits_addr; |
3132 | ||
df033caf | 3133 | nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8); |
0b6d4ca0 | 3134 | nm_i->nat_bits = f2fs_kvzalloc(sbi, |
acbf054d | 3135 | nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL); |
22ad0b6a JK |
3136 | if (!nm_i->nat_bits) |
3137 | return -ENOMEM; | |
3138 | ||
94c821fb CY |
3139 | nm_i->full_nat_bits = nm_i->nat_bits + 8; |
3140 | nm_i->empty_nat_bits = nm_i->full_nat_bits + nat_bits_bytes; | |
3141 | ||
3142 | if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG)) | |
3143 | return 0; | |
3144 | ||
22ad0b6a JK |
3145 | nat_bits_addr = __start_cp_addr(sbi) + sbi->blocks_per_seg - |
3146 | nm_i->nat_bits_blocks; | |
3147 | for (i = 0; i < nm_i->nat_bits_blocks; i++) { | |
7735730d CY |
3148 | struct page *page; |
3149 | ||
3150 | page = f2fs_get_meta_page(sbi, nat_bits_addr++); | |
3b30eb19 | 3151 | if (IS_ERR(page)) |
7735730d | 3152 | return PTR_ERR(page); |
22ad0b6a JK |
3153 | |
3154 | memcpy(nm_i->nat_bits + (i << F2FS_BLKSIZE_BITS), | |
3155 | page_address(page), F2FS_BLKSIZE); | |
3156 | f2fs_put_page(page, 1); | |
3157 | } | |
3158 | ||
ced2c7ea | 3159 | cp_ver |= (cur_cp_crc(ckpt) << 32); |
22ad0b6a | 3160 | if (cpu_to_le64(cp_ver) != *(__le64 *)nm_i->nat_bits) { |
94c821fb CY |
3161 | clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG); |
3162 | f2fs_notice(sbi, "Disable nat_bits due to incorrect cp_ver (%llu, %llu)", | |
3163 | cp_ver, le64_to_cpu(*(__le64 *)nm_i->nat_bits)); | |
22ad0b6a JK |
3164 | return 0; |
3165 | } | |
3166 | ||
dcbb4c10 | 3167 | f2fs_notice(sbi, "Found nat_bits in checkpoint"); |
22ad0b6a JK |
3168 | return 0; |
3169 | } | |
3170 | ||
bd80a4b9 | 3171 | static inline void load_free_nid_bitmap(struct f2fs_sb_info *sbi) |
7041d5d2 CY |
3172 | { |
3173 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3174 | unsigned int i = 0; | |
3175 | nid_t nid, last_nid; | |
3176 | ||
94c821fb | 3177 | if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG)) |
7041d5d2 CY |
3178 | return; |
3179 | ||
3180 | for (i = 0; i < nm_i->nat_blocks; i++) { | |
3181 | i = find_next_bit_le(nm_i->empty_nat_bits, nm_i->nat_blocks, i); | |
3182 | if (i >= nm_i->nat_blocks) | |
3183 | break; | |
3184 | ||
3185 | __set_bit_le(i, nm_i->nat_block_bitmap); | |
3186 | ||
3187 | nid = i * NAT_ENTRY_PER_BLOCK; | |
f6986ede | 3188 | last_nid = nid + NAT_ENTRY_PER_BLOCK; |
7041d5d2 | 3189 | |
346fe752 | 3190 | spin_lock(&NM_I(sbi)->nid_list_lock); |
7041d5d2 | 3191 | for (; nid < last_nid; nid++) |
346fe752 CY |
3192 | update_free_nid_bitmap(sbi, nid, true, true); |
3193 | spin_unlock(&NM_I(sbi)->nid_list_lock); | |
7041d5d2 CY |
3194 | } |
3195 | ||
3196 | for (i = 0; i < nm_i->nat_blocks; i++) { | |
3197 | i = find_next_bit_le(nm_i->full_nat_bits, nm_i->nat_blocks, i); | |
3198 | if (i >= nm_i->nat_blocks) | |
3199 | break; | |
3200 | ||
3201 | __set_bit_le(i, nm_i->nat_block_bitmap); | |
3202 | } | |
3203 | } | |
3204 | ||
e05df3b1 JK |
3205 | static int init_node_manager(struct f2fs_sb_info *sbi) |
3206 | { | |
3207 | struct f2fs_super_block *sb_raw = F2FS_RAW_SUPER(sbi); | |
3208 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3209 | unsigned char *version_bitmap; | |
22ad0b6a JK |
3210 | unsigned int nat_segs; |
3211 | int err; | |
e05df3b1 JK |
3212 | |
3213 | nm_i->nat_blkaddr = le32_to_cpu(sb_raw->nat_blkaddr); | |
3214 | ||
3215 | /* segment_count_nat includes pair segment so divide to 2. */ | |
3216 | nat_segs = le32_to_cpu(sb_raw->segment_count_nat) >> 1; | |
22ad0b6a JK |
3217 | nm_i->nat_blocks = nat_segs << le32_to_cpu(sb_raw->log_blocks_per_seg); |
3218 | nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nm_i->nat_blocks; | |
7ee0eeab | 3219 | |
b63da15e | 3220 | /* not used nids: 0, node, meta, (and root counted as valid node) */ |
04d47e67 | 3221 | nm_i->available_nids = nm_i->max_nid - sbi->total_valid_node_count - |
27cae0bc | 3222 | F2FS_RESERVED_NODE_NUM; |
9a4ffdf5 CY |
3223 | nm_i->nid_cnt[FREE_NID] = 0; |
3224 | nm_i->nid_cnt[PREALLOC_NID] = 0; | |
cdfc41c1 | 3225 | nm_i->ram_thresh = DEF_RAM_THRESHOLD; |
ea1a29a0 | 3226 | nm_i->ra_nid_pages = DEF_RA_NID_PAGES; |
2304cb0c | 3227 | nm_i->dirty_nats_ratio = DEF_DIRTY_NAT_RATIO_THRESHOLD; |
47c8ebcc | 3228 | nm_i->max_rf_node_blocks = DEF_RF_NODE_BLOCKS; |
e05df3b1 | 3229 | |
8a7ed66a | 3230 | INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC); |
9a4ffdf5 | 3231 | INIT_LIST_HEAD(&nm_i->free_nid_list); |
769ec6e5 JK |
3232 | INIT_RADIX_TREE(&nm_i->nat_root, GFP_NOIO); |
3233 | INIT_RADIX_TREE(&nm_i->nat_set_root, GFP_NOIO); | |
e05df3b1 | 3234 | INIT_LIST_HEAD(&nm_i->nat_entries); |
22969158 | 3235 | spin_lock_init(&nm_i->nat_list_lock); |
e05df3b1 JK |
3236 | |
3237 | mutex_init(&nm_i->build_lock); | |
b8559dc2 | 3238 | spin_lock_init(&nm_i->nid_list_lock); |
e4544b63 | 3239 | init_f2fs_rwsem(&nm_i->nat_tree_lock); |
e05df3b1 | 3240 | |
e05df3b1 | 3241 | nm_i->next_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid); |
79b5793b | 3242 | nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP); |
e05df3b1 | 3243 | version_bitmap = __bitmap_ptr(sbi, NAT_BITMAP); |
79b5793b AG |
3244 | nm_i->nat_bitmap = kmemdup(version_bitmap, nm_i->bitmap_size, |
3245 | GFP_KERNEL); | |
3246 | if (!nm_i->nat_bitmap) | |
3247 | return -ENOMEM; | |
599a09b2 | 3248 | |
22ad0b6a JK |
3249 | err = __get_nat_bitmaps(sbi); |
3250 | if (err) | |
3251 | return err; | |
3252 | ||
599a09b2 CY |
3253 | #ifdef CONFIG_F2FS_CHECK_FS |
3254 | nm_i->nat_bitmap_mir = kmemdup(version_bitmap, nm_i->bitmap_size, | |
3255 | GFP_KERNEL); | |
3256 | if (!nm_i->nat_bitmap_mir) | |
3257 | return -ENOMEM; | |
3258 | #endif | |
3259 | ||
e05df3b1 JK |
3260 | return 0; |
3261 | } | |
3262 | ||
9f7e4a2c | 3263 | static int init_free_nid_cache(struct f2fs_sb_info *sbi) |
4ac91242 CY |
3264 | { |
3265 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
bb1105e4 | 3266 | int i; |
4ac91242 | 3267 | |
026f0507 | 3268 | nm_i->free_nid_bitmap = |
0b6d4ca0 EB |
3269 | f2fs_kvzalloc(sbi, array_size(sizeof(unsigned char *), |
3270 | nm_i->nat_blocks), | |
3271 | GFP_KERNEL); | |
4ac91242 CY |
3272 | if (!nm_i->free_nid_bitmap) |
3273 | return -ENOMEM; | |
3274 | ||
bb1105e4 JK |
3275 | for (i = 0; i < nm_i->nat_blocks; i++) { |
3276 | nm_i->free_nid_bitmap[i] = f2fs_kvzalloc(sbi, | |
e15d54d5 | 3277 | f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK), GFP_KERNEL); |
68c43a23 | 3278 | if (!nm_i->free_nid_bitmap[i]) |
bb1105e4 JK |
3279 | return -ENOMEM; |
3280 | } | |
3281 | ||
628b3d14 | 3282 | nm_i->nat_block_bitmap = f2fs_kvzalloc(sbi, nm_i->nat_blocks / 8, |
4ac91242 CY |
3283 | GFP_KERNEL); |
3284 | if (!nm_i->nat_block_bitmap) | |
3285 | return -ENOMEM; | |
586d1492 | 3286 | |
9d2a789c KC |
3287 | nm_i->free_nid_count = |
3288 | f2fs_kvzalloc(sbi, array_size(sizeof(unsigned short), | |
3289 | nm_i->nat_blocks), | |
3290 | GFP_KERNEL); | |
586d1492 CY |
3291 | if (!nm_i->free_nid_count) |
3292 | return -ENOMEM; | |
4ac91242 CY |
3293 | return 0; |
3294 | } | |
3295 | ||
4d57b86d | 3296 | int f2fs_build_node_manager(struct f2fs_sb_info *sbi) |
e05df3b1 JK |
3297 | { |
3298 | int err; | |
3299 | ||
acbf054d CY |
3300 | sbi->nm_info = f2fs_kzalloc(sbi, sizeof(struct f2fs_nm_info), |
3301 | GFP_KERNEL); | |
e05df3b1 JK |
3302 | if (!sbi->nm_info) |
3303 | return -ENOMEM; | |
3304 | ||
3305 | err = init_node_manager(sbi); | |
3306 | if (err) | |
3307 | return err; | |
3308 | ||
4ac91242 CY |
3309 | err = init_free_nid_cache(sbi); |
3310 | if (err) | |
3311 | return err; | |
3312 | ||
7041d5d2 CY |
3313 | /* load free nid status from nat_bits table */ |
3314 | load_free_nid_bitmap(sbi); | |
3315 | ||
e2374015 | 3316 | return f2fs_build_free_nids(sbi, true, true); |
e05df3b1 JK |
3317 | } |
3318 | ||
4d57b86d | 3319 | void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi) |
e05df3b1 JK |
3320 | { |
3321 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3322 | struct free_nid *i, *next_i; | |
3323 | struct nat_entry *natvec[NATVEC_SIZE]; | |
7aed0d45 | 3324 | struct nat_entry_set *setvec[SETVEC_SIZE]; |
e05df3b1 JK |
3325 | nid_t nid = 0; |
3326 | unsigned int found; | |
3327 | ||
3328 | if (!nm_i) | |
3329 | return; | |
3330 | ||
3331 | /* destroy free nid list */ | |
b8559dc2 | 3332 | spin_lock(&nm_i->nid_list_lock); |
9a4ffdf5 | 3333 | list_for_each_entry_safe(i, next_i, &nm_i->free_nid_list, list) { |
a0761f63 | 3334 | __remove_free_nid(sbi, i, FREE_NID); |
b8559dc2 | 3335 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 | 3336 | kmem_cache_free(free_nid_slab, i); |
b8559dc2 | 3337 | spin_lock(&nm_i->nid_list_lock); |
e05df3b1 | 3338 | } |
9a4ffdf5 CY |
3339 | f2fs_bug_on(sbi, nm_i->nid_cnt[FREE_NID]); |
3340 | f2fs_bug_on(sbi, nm_i->nid_cnt[PREALLOC_NID]); | |
3341 | f2fs_bug_on(sbi, !list_empty(&nm_i->free_nid_list)); | |
b8559dc2 | 3342 | spin_unlock(&nm_i->nid_list_lock); |
e05df3b1 JK |
3343 | |
3344 | /* destroy nat cache */ | |
e4544b63 | 3345 | f2fs_down_write(&nm_i->nat_tree_lock); |
e05df3b1 JK |
3346 | while ((found = __gang_lookup_nat_cache(nm_i, |
3347 | nid, NATVEC_SIZE, natvec))) { | |
3348 | unsigned idx; | |
7aed0d45 | 3349 | |
b6ce391e | 3350 | nid = nat_get_nid(natvec[found - 1]) + 1; |
22969158 CY |
3351 | for (idx = 0; idx < found; idx++) { |
3352 | spin_lock(&nm_i->nat_list_lock); | |
3353 | list_del(&natvec[idx]->list); | |
3354 | spin_unlock(&nm_i->nat_list_lock); | |
3355 | ||
b6ce391e | 3356 | __del_from_nat_cache(nm_i, natvec[idx]); |
22969158 | 3357 | } |
e05df3b1 | 3358 | } |
a95ba66a | 3359 | f2fs_bug_on(sbi, nm_i->nat_cnt[TOTAL_NAT]); |
7aed0d45 JK |
3360 | |
3361 | /* destroy nat set cache */ | |
3362 | nid = 0; | |
3363 | while ((found = __gang_lookup_nat_set(nm_i, | |
3364 | nid, SETVEC_SIZE, setvec))) { | |
3365 | unsigned idx; | |
3366 | ||
3367 | nid = setvec[found - 1]->set + 1; | |
3368 | for (idx = 0; idx < found; idx++) { | |
3369 | /* entry_cnt is not zero, when cp_error was occurred */ | |
3370 | f2fs_bug_on(sbi, !list_empty(&setvec[idx]->entry_list)); | |
3371 | radix_tree_delete(&nm_i->nat_set_root, setvec[idx]->set); | |
3372 | kmem_cache_free(nat_entry_set_slab, setvec[idx]); | |
3373 | } | |
3374 | } | |
e4544b63 | 3375 | f2fs_up_write(&nm_i->nat_tree_lock); |
e05df3b1 | 3376 | |
4ac91242 | 3377 | kvfree(nm_i->nat_block_bitmap); |
bb1105e4 JK |
3378 | if (nm_i->free_nid_bitmap) { |
3379 | int i; | |
3380 | ||
3381 | for (i = 0; i < nm_i->nat_blocks; i++) | |
3382 | kvfree(nm_i->free_nid_bitmap[i]); | |
5222595d | 3383 | kvfree(nm_i->free_nid_bitmap); |
bb1105e4 | 3384 | } |
586d1492 | 3385 | kvfree(nm_i->free_nid_count); |
4ac91242 | 3386 | |
5222595d JK |
3387 | kvfree(nm_i->nat_bitmap); |
3388 | kvfree(nm_i->nat_bits); | |
599a09b2 | 3389 | #ifdef CONFIG_F2FS_CHECK_FS |
5222595d | 3390 | kvfree(nm_i->nat_bitmap_mir); |
599a09b2 | 3391 | #endif |
e05df3b1 | 3392 | sbi->nm_info = NULL; |
c8eb7024 | 3393 | kfree(nm_i); |
e05df3b1 JK |
3394 | } |
3395 | ||
4d57b86d | 3396 | int __init f2fs_create_node_manager_caches(void) |
e05df3b1 | 3397 | { |
98510003 | 3398 | nat_entry_slab = f2fs_kmem_cache_create("f2fs_nat_entry", |
e8512d2e | 3399 | sizeof(struct nat_entry)); |
e05df3b1 | 3400 | if (!nat_entry_slab) |
aec71382 | 3401 | goto fail; |
e05df3b1 | 3402 | |
98510003 | 3403 | free_nid_slab = f2fs_kmem_cache_create("f2fs_free_nid", |
e8512d2e | 3404 | sizeof(struct free_nid)); |
aec71382 | 3405 | if (!free_nid_slab) |
ce3e6d25 | 3406 | goto destroy_nat_entry; |
aec71382 | 3407 | |
98510003 | 3408 | nat_entry_set_slab = f2fs_kmem_cache_create("f2fs_nat_entry_set", |
aec71382 CY |
3409 | sizeof(struct nat_entry_set)); |
3410 | if (!nat_entry_set_slab) | |
ce3e6d25 | 3411 | goto destroy_free_nid; |
50fa53ec | 3412 | |
98510003 | 3413 | fsync_node_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_node_entry", |
50fa53ec CY |
3414 | sizeof(struct fsync_node_entry)); |
3415 | if (!fsync_node_entry_slab) | |
3416 | goto destroy_nat_entry_set; | |
e05df3b1 | 3417 | return 0; |
aec71382 | 3418 | |
50fa53ec CY |
3419 | destroy_nat_entry_set: |
3420 | kmem_cache_destroy(nat_entry_set_slab); | |
ce3e6d25 | 3421 | destroy_free_nid: |
aec71382 | 3422 | kmem_cache_destroy(free_nid_slab); |
ce3e6d25 | 3423 | destroy_nat_entry: |
aec71382 CY |
3424 | kmem_cache_destroy(nat_entry_slab); |
3425 | fail: | |
3426 | return -ENOMEM; | |
e05df3b1 JK |
3427 | } |
3428 | ||
4d57b86d | 3429 | void f2fs_destroy_node_manager_caches(void) |
e05df3b1 | 3430 | { |
50fa53ec | 3431 | kmem_cache_destroy(fsync_node_entry_slab); |
aec71382 | 3432 | kmem_cache_destroy(nat_entry_set_slab); |
e05df3b1 JK |
3433 | kmem_cache_destroy(free_nid_slab); |
3434 | kmem_cache_destroy(nat_entry_slab); | |
3435 | } |