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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> | |
11 | #include <linux/backing-dev.h> | |
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" |
9e4ded3f | 20 | #include "trace.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); | |
10f966bb | 39 | return -EFSCORRUPTED; |
a4f843bd JK |
40 | } |
41 | return 0; | |
42 | } | |
43 | ||
4d57b86d | 44 | bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type) |
cdfc41c1 | 45 | { |
6fb03f3a | 46 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
cdfc41c1 | 47 | struct sysinfo val; |
e5e7ea3c | 48 | unsigned long avail_ram; |
cdfc41c1 | 49 | unsigned long mem_size = 0; |
6fb03f3a | 50 | bool res = false; |
cdfc41c1 JK |
51 | |
52 | si_meminfo(&val); | |
e5e7ea3c JK |
53 | |
54 | /* only uses low memory */ | |
55 | avail_ram = val.totalram - val.totalhigh; | |
56 | ||
429511cd CY |
57 | /* |
58 | * give 25%, 25%, 50%, 50%, 50% memory for each components respectively | |
59 | */ | |
6fb03f3a | 60 | if (type == FREE_NIDS) { |
9a4ffdf5 | 61 | mem_size = (nm_i->nid_cnt[FREE_NID] * |
b8559dc2 | 62 | sizeof(struct free_nid)) >> PAGE_SHIFT; |
e5e7ea3c | 63 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); |
6fb03f3a | 64 | } else if (type == NAT_ENTRIES) { |
e5e7ea3c | 65 | mem_size = (nm_i->nat_cnt * sizeof(struct nat_entry)) >> |
09cbfeaf | 66 | PAGE_SHIFT; |
e5e7ea3c | 67 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); |
e589c2c4 JK |
68 | if (excess_cached_nats(sbi)) |
69 | res = false; | |
a1257023 JK |
70 | } else if (type == DIRTY_DENTS) { |
71 | if (sbi->sb->s_bdi->wb.dirty_exceeded) | |
72 | return false; | |
73 | mem_size = get_pages(sbi, F2FS_DIRTY_DENTS); | |
74 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); | |
e5e7ea3c JK |
75 | } else if (type == INO_ENTRIES) { |
76 | int i; | |
77 | ||
39d787be | 78 | for (i = 0; i < MAX_INO_ENTRY; i++) |
8f73cbb7 KM |
79 | mem_size += sbi->im[i].ino_num * |
80 | sizeof(struct ino_entry); | |
81 | mem_size >>= PAGE_SHIFT; | |
e5e7ea3c | 82 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); |
429511cd | 83 | } else if (type == EXTENT_CACHE) { |
7441ccef JK |
84 | mem_size = (atomic_read(&sbi->total_ext_tree) * |
85 | sizeof(struct extent_tree) + | |
429511cd | 86 | atomic_read(&sbi->total_ext_node) * |
09cbfeaf | 87 | sizeof(struct extent_node)) >> PAGE_SHIFT; |
429511cd | 88 | res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1); |
57864ae5 JK |
89 | } else if (type == INMEM_PAGES) { |
90 | /* it allows 20% / total_ram for inmemory pages */ | |
91 | mem_size = get_pages(sbi, F2FS_INMEM_PAGES); | |
92 | res = mem_size < (val.totalram / 5); | |
1e84371f | 93 | } else { |
1663cae4 JK |
94 | if (!sbi->sb->s_bdi->wb.dirty_exceeded) |
95 | return true; | |
6fb03f3a JK |
96 | } |
97 | return res; | |
cdfc41c1 JK |
98 | } |
99 | ||
e05df3b1 JK |
100 | static void clear_node_page_dirty(struct page *page) |
101 | { | |
e05df3b1 | 102 | if (PageDirty(page)) { |
5ec2d99d | 103 | f2fs_clear_page_cache_dirty_tag(page); |
e05df3b1 | 104 | clear_page_dirty_for_io(page); |
aec2f729 | 105 | dec_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); |
e05df3b1 JK |
106 | } |
107 | ClearPageUptodate(page); | |
108 | } | |
109 | ||
110 | static struct page *get_current_nat_page(struct f2fs_sb_info *sbi, nid_t nid) | |
111 | { | |
80551d17 | 112 | return f2fs_get_meta_page_nofail(sbi, current_nat_addr(sbi, nid)); |
e05df3b1 JK |
113 | } |
114 | ||
115 | static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid) | |
116 | { | |
117 | struct page *src_page; | |
118 | struct page *dst_page; | |
e05df3b1 JK |
119 | pgoff_t dst_off; |
120 | void *src_addr; | |
121 | void *dst_addr; | |
122 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
123 | ||
80551d17 | 124 | dst_off = next_nat_addr(sbi, current_nat_addr(sbi, nid)); |
e05df3b1 JK |
125 | |
126 | /* get current nat block page with lock */ | |
80551d17 | 127 | src_page = get_current_nat_page(sbi, nid); |
edc55aaf JK |
128 | if (IS_ERR(src_page)) |
129 | return src_page; | |
4d57b86d | 130 | dst_page = f2fs_grab_meta_page(sbi, dst_off); |
9850cf4a | 131 | f2fs_bug_on(sbi, PageDirty(src_page)); |
e05df3b1 JK |
132 | |
133 | src_addr = page_address(src_page); | |
134 | dst_addr = page_address(dst_page); | |
09cbfeaf | 135 | memcpy(dst_addr, src_addr, PAGE_SIZE); |
e05df3b1 JK |
136 | set_page_dirty(dst_page); |
137 | f2fs_put_page(src_page, 1); | |
138 | ||
139 | set_to_next_nat(nm_i, nid); | |
140 | ||
141 | return dst_page; | |
142 | } | |
143 | ||
12f9ef37 YH |
144 | static struct nat_entry *__alloc_nat_entry(nid_t nid, bool no_fail) |
145 | { | |
146 | struct nat_entry *new; | |
147 | ||
148 | if (no_fail) | |
2882d343 | 149 | new = f2fs_kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO); |
12f9ef37 | 150 | else |
2882d343 | 151 | new = kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO); |
12f9ef37 YH |
152 | if (new) { |
153 | nat_set_nid(new, nid); | |
154 | nat_reset_flag(new); | |
155 | } | |
156 | return new; | |
157 | } | |
158 | ||
159 | static void __free_nat_entry(struct nat_entry *e) | |
160 | { | |
161 | kmem_cache_free(nat_entry_slab, e); | |
162 | } | |
163 | ||
164 | /* must be locked by nat_tree_lock */ | |
165 | static struct nat_entry *__init_nat_entry(struct f2fs_nm_info *nm_i, | |
166 | struct nat_entry *ne, struct f2fs_nat_entry *raw_ne, bool no_fail) | |
167 | { | |
168 | if (no_fail) | |
169 | f2fs_radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne); | |
170 | else if (radix_tree_insert(&nm_i->nat_root, nat_get_nid(ne), ne)) | |
171 | return NULL; | |
172 | ||
173 | if (raw_ne) | |
174 | node_info_from_raw_nat(&ne->ni, raw_ne); | |
22969158 CY |
175 | |
176 | spin_lock(&nm_i->nat_list_lock); | |
12f9ef37 | 177 | list_add_tail(&ne->list, &nm_i->nat_entries); |
22969158 CY |
178 | spin_unlock(&nm_i->nat_list_lock); |
179 | ||
12f9ef37 YH |
180 | nm_i->nat_cnt++; |
181 | return ne; | |
182 | } | |
183 | ||
e05df3b1 JK |
184 | static struct nat_entry *__lookup_nat_cache(struct f2fs_nm_info *nm_i, nid_t n) |
185 | { | |
22969158 CY |
186 | struct nat_entry *ne; |
187 | ||
188 | ne = radix_tree_lookup(&nm_i->nat_root, n); | |
189 | ||
190 | /* for recent accessed nat entry, move it to tail of lru list */ | |
191 | if (ne && !get_nat_flag(ne, IS_DIRTY)) { | |
192 | spin_lock(&nm_i->nat_list_lock); | |
193 | if (!list_empty(&ne->list)) | |
194 | list_move_tail(&ne->list, &nm_i->nat_entries); | |
195 | spin_unlock(&nm_i->nat_list_lock); | |
196 | } | |
197 | ||
198 | return ne; | |
e05df3b1 JK |
199 | } |
200 | ||
201 | static unsigned int __gang_lookup_nat_cache(struct f2fs_nm_info *nm_i, | |
202 | nid_t start, unsigned int nr, struct nat_entry **ep) | |
203 | { | |
204 | return radix_tree_gang_lookup(&nm_i->nat_root, (void **)ep, start, nr); | |
205 | } | |
206 | ||
207 | static void __del_from_nat_cache(struct f2fs_nm_info *nm_i, struct nat_entry *e) | |
208 | { | |
e05df3b1 JK |
209 | radix_tree_delete(&nm_i->nat_root, nat_get_nid(e)); |
210 | nm_i->nat_cnt--; | |
12f9ef37 | 211 | __free_nat_entry(e); |
e05df3b1 JK |
212 | } |
213 | ||
780de47c CY |
214 | static struct nat_entry_set *__grab_nat_entry_set(struct f2fs_nm_info *nm_i, |
215 | struct nat_entry *ne) | |
309cc2b6 JK |
216 | { |
217 | nid_t set = NAT_BLOCK_OFFSET(ne->ni.nid); | |
218 | struct nat_entry_set *head; | |
219 | ||
309cc2b6 JK |
220 | head = radix_tree_lookup(&nm_i->nat_set_root, set); |
221 | if (!head) { | |
80c54505 | 222 | head = f2fs_kmem_cache_alloc(nat_entry_set_slab, GFP_NOFS); |
309cc2b6 JK |
223 | |
224 | INIT_LIST_HEAD(&head->entry_list); | |
225 | INIT_LIST_HEAD(&head->set_list); | |
226 | head->set = set; | |
227 | head->entry_cnt = 0; | |
9be32d72 | 228 | f2fs_radix_tree_insert(&nm_i->nat_set_root, set, head); |
309cc2b6 | 229 | } |
780de47c CY |
230 | return head; |
231 | } | |
232 | ||
233 | static void __set_nat_cache_dirty(struct f2fs_nm_info *nm_i, | |
234 | struct nat_entry *ne) | |
235 | { | |
236 | struct nat_entry_set *head; | |
237 | bool new_ne = nat_get_blkaddr(ne) == NEW_ADDR; | |
238 | ||
239 | if (!new_ne) | |
240 | head = __grab_nat_entry_set(nm_i, ne); | |
241 | ||
242 | /* | |
243 | * update entry_cnt in below condition: | |
244 | * 1. update NEW_ADDR to valid block address; | |
245 | * 2. update old block address to new one; | |
246 | */ | |
247 | if (!new_ne && (get_nat_flag(ne, IS_PREALLOC) || | |
248 | !get_nat_flag(ne, IS_DIRTY))) | |
249 | head->entry_cnt++; | |
250 | ||
251 | set_nat_flag(ne, IS_PREALLOC, new_ne); | |
febeca6d CY |
252 | |
253 | if (get_nat_flag(ne, IS_DIRTY)) | |
254 | goto refresh_list; | |
255 | ||
309cc2b6 | 256 | nm_i->dirty_nat_cnt++; |
309cc2b6 | 257 | set_nat_flag(ne, IS_DIRTY, true); |
febeca6d | 258 | refresh_list: |
22969158 | 259 | spin_lock(&nm_i->nat_list_lock); |
780de47c | 260 | if (new_ne) |
febeca6d CY |
261 | list_del_init(&ne->list); |
262 | else | |
263 | list_move_tail(&ne->list, &head->entry_list); | |
22969158 | 264 | spin_unlock(&nm_i->nat_list_lock); |
309cc2b6 JK |
265 | } |
266 | ||
267 | static void __clear_nat_cache_dirty(struct f2fs_nm_info *nm_i, | |
0b28b71e | 268 | struct nat_entry_set *set, struct nat_entry *ne) |
309cc2b6 | 269 | { |
22969158 | 270 | spin_lock(&nm_i->nat_list_lock); |
0b28b71e | 271 | list_move_tail(&ne->list, &nm_i->nat_entries); |
22969158 CY |
272 | spin_unlock(&nm_i->nat_list_lock); |
273 | ||
0b28b71e KM |
274 | set_nat_flag(ne, IS_DIRTY, false); |
275 | set->entry_cnt--; | |
276 | nm_i->dirty_nat_cnt--; | |
309cc2b6 JK |
277 | } |
278 | ||
279 | static unsigned int __gang_lookup_nat_set(struct f2fs_nm_info *nm_i, | |
280 | nid_t start, unsigned int nr, struct nat_entry_set **ep) | |
281 | { | |
282 | return radix_tree_gang_lookup(&nm_i->nat_set_root, (void **)ep, | |
283 | start, nr); | |
284 | } | |
285 | ||
50fa53ec CY |
286 | bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page) |
287 | { | |
288 | return NODE_MAPPING(sbi) == page->mapping && | |
289 | IS_DNODE(page) && is_cold_node(page); | |
290 | } | |
291 | ||
292 | void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi) | |
293 | { | |
294 | spin_lock_init(&sbi->fsync_node_lock); | |
295 | INIT_LIST_HEAD(&sbi->fsync_node_list); | |
296 | sbi->fsync_seg_id = 0; | |
297 | sbi->fsync_node_num = 0; | |
298 | } | |
299 | ||
300 | static unsigned int f2fs_add_fsync_node_entry(struct f2fs_sb_info *sbi, | |
301 | struct page *page) | |
302 | { | |
303 | struct fsync_node_entry *fn; | |
304 | unsigned long flags; | |
305 | unsigned int seq_id; | |
306 | ||
307 | fn = f2fs_kmem_cache_alloc(fsync_node_entry_slab, GFP_NOFS); | |
308 | ||
309 | get_page(page); | |
310 | fn->page = page; | |
311 | INIT_LIST_HEAD(&fn->list); | |
312 | ||
313 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
314 | list_add_tail(&fn->list, &sbi->fsync_node_list); | |
315 | fn->seq_id = sbi->fsync_seg_id++; | |
316 | seq_id = fn->seq_id; | |
317 | sbi->fsync_node_num++; | |
318 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
319 | ||
320 | return seq_id; | |
321 | } | |
322 | ||
323 | void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page) | |
324 | { | |
325 | struct fsync_node_entry *fn; | |
326 | unsigned long flags; | |
327 | ||
328 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
329 | list_for_each_entry(fn, &sbi->fsync_node_list, list) { | |
330 | if (fn->page == page) { | |
331 | list_del(&fn->list); | |
332 | sbi->fsync_node_num--; | |
333 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
334 | kmem_cache_free(fsync_node_entry_slab, fn); | |
335 | put_page(page); | |
336 | return; | |
337 | } | |
338 | } | |
339 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
340 | f2fs_bug_on(sbi, 1); | |
341 | } | |
342 | ||
343 | void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi) | |
344 | { | |
345 | unsigned long flags; | |
346 | ||
347 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
348 | sbi->fsync_seg_id = 0; | |
349 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
350 | } | |
351 | ||
4d57b86d | 352 | int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 JK |
353 | { |
354 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
355 | struct nat_entry *e; | |
2dcf51ab | 356 | bool need = false; |
e05df3b1 | 357 | |
b873b798 | 358 | down_read(&nm_i->nat_tree_lock); |
e05df3b1 | 359 | e = __lookup_nat_cache(nm_i, nid); |
2dcf51ab JK |
360 | if (e) { |
361 | if (!get_nat_flag(e, IS_CHECKPOINTED) && | |
362 | !get_nat_flag(e, HAS_FSYNCED_INODE)) | |
363 | need = true; | |
364 | } | |
b873b798 | 365 | up_read(&nm_i->nat_tree_lock); |
2dcf51ab | 366 | return need; |
e05df3b1 JK |
367 | } |
368 | ||
4d57b86d | 369 | bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid) |
479f40c4 JK |
370 | { |
371 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
372 | struct nat_entry *e; | |
2dcf51ab | 373 | bool is_cp = true; |
479f40c4 | 374 | |
b873b798 | 375 | down_read(&nm_i->nat_tree_lock); |
2dcf51ab JK |
376 | e = __lookup_nat_cache(nm_i, nid); |
377 | if (e && !get_nat_flag(e, IS_CHECKPOINTED)) | |
378 | is_cp = false; | |
b873b798 | 379 | up_read(&nm_i->nat_tree_lock); |
2dcf51ab | 380 | return is_cp; |
479f40c4 JK |
381 | } |
382 | ||
4d57b86d | 383 | bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino) |
b6fe5873 JK |
384 | { |
385 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
386 | struct nat_entry *e; | |
88bd02c9 | 387 | bool need_update = true; |
b6fe5873 | 388 | |
b873b798 | 389 | down_read(&nm_i->nat_tree_lock); |
88bd02c9 JK |
390 | e = __lookup_nat_cache(nm_i, ino); |
391 | if (e && get_nat_flag(e, HAS_LAST_FSYNC) && | |
392 | (get_nat_flag(e, IS_CHECKPOINTED) || | |
393 | get_nat_flag(e, HAS_FSYNCED_INODE))) | |
394 | need_update = false; | |
b873b798 | 395 | up_read(&nm_i->nat_tree_lock); |
88bd02c9 | 396 | return need_update; |
b6fe5873 JK |
397 | } |
398 | ||
12f9ef37 | 399 | /* must be locked by nat_tree_lock */ |
1515aef0 | 400 | static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid, |
e05df3b1 JK |
401 | struct f2fs_nat_entry *ne) |
402 | { | |
1515aef0 | 403 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
12f9ef37 | 404 | struct nat_entry *new, *e; |
9be32d72 | 405 | |
12f9ef37 YH |
406 | new = __alloc_nat_entry(nid, false); |
407 | if (!new) | |
408 | return; | |
409 | ||
410 | down_write(&nm_i->nat_tree_lock); | |
e05df3b1 | 411 | e = __lookup_nat_cache(nm_i, nid); |
12f9ef37 YH |
412 | if (!e) |
413 | e = __init_nat_entry(nm_i, new, ne, false); | |
414 | else | |
0c0b471e EB |
415 | f2fs_bug_on(sbi, nat_get_ino(e) != le32_to_cpu(ne->ino) || |
416 | nat_get_blkaddr(e) != | |
417 | le32_to_cpu(ne->block_addr) || | |
1515aef0 | 418 | nat_get_version(e) != ne->version); |
12f9ef37 YH |
419 | up_write(&nm_i->nat_tree_lock); |
420 | if (e != new) | |
421 | __free_nat_entry(new); | |
e05df3b1 JK |
422 | } |
423 | ||
424 | static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni, | |
479f40c4 | 425 | block_t new_blkaddr, bool fsync_done) |
e05df3b1 JK |
426 | { |
427 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
428 | struct nat_entry *e; | |
12f9ef37 | 429 | struct nat_entry *new = __alloc_nat_entry(ni->nid, true); |
9be32d72 | 430 | |
b873b798 | 431 | down_write(&nm_i->nat_tree_lock); |
e05df3b1 JK |
432 | e = __lookup_nat_cache(nm_i, ni->nid); |
433 | if (!e) { | |
12f9ef37 | 434 | e = __init_nat_entry(nm_i, new, NULL, true); |
5c27f4ee | 435 | copy_node_info(&e->ni, ni); |
9850cf4a | 436 | f2fs_bug_on(sbi, ni->blk_addr == NEW_ADDR); |
e05df3b1 JK |
437 | } else if (new_blkaddr == NEW_ADDR) { |
438 | /* | |
439 | * when nid is reallocated, | |
440 | * previous nat entry can be remained in nat cache. | |
441 | * So, reinitialize it with new information. | |
442 | */ | |
5c27f4ee | 443 | copy_node_info(&e->ni, ni); |
9850cf4a | 444 | f2fs_bug_on(sbi, ni->blk_addr != NULL_ADDR); |
e05df3b1 | 445 | } |
12f9ef37 YH |
446 | /* let's free early to reduce memory consumption */ |
447 | if (e != new) | |
448 | __free_nat_entry(new); | |
e05df3b1 | 449 | |
e05df3b1 | 450 | /* sanity check */ |
9850cf4a JK |
451 | f2fs_bug_on(sbi, nat_get_blkaddr(e) != ni->blk_addr); |
452 | f2fs_bug_on(sbi, nat_get_blkaddr(e) == NULL_ADDR && | |
e05df3b1 | 453 | new_blkaddr == NULL_ADDR); |
9850cf4a | 454 | f2fs_bug_on(sbi, nat_get_blkaddr(e) == NEW_ADDR && |
e05df3b1 | 455 | new_blkaddr == NEW_ADDR); |
93770ab7 | 456 | f2fs_bug_on(sbi, __is_valid_data_blkaddr(nat_get_blkaddr(e)) && |
e05df3b1 JK |
457 | new_blkaddr == NEW_ADDR); |
458 | ||
e1c42045 | 459 | /* increment version no as node is removed */ |
e05df3b1 JK |
460 | if (nat_get_blkaddr(e) != NEW_ADDR && new_blkaddr == NULL_ADDR) { |
461 | unsigned char version = nat_get_version(e); | |
462 | nat_set_version(e, inc_node_version(version)); | |
463 | } | |
464 | ||
465 | /* change address */ | |
466 | nat_set_blkaddr(e, new_blkaddr); | |
93770ab7 | 467 | if (!__is_valid_data_blkaddr(new_blkaddr)) |
88bd02c9 | 468 | set_nat_flag(e, IS_CHECKPOINTED, false); |
e05df3b1 | 469 | __set_nat_cache_dirty(nm_i, e); |
479f40c4 JK |
470 | |
471 | /* update fsync_mark if its inode nat entry is still alive */ | |
d5b692b7 CY |
472 | if (ni->nid != ni->ino) |
473 | e = __lookup_nat_cache(nm_i, ni->ino); | |
88bd02c9 JK |
474 | if (e) { |
475 | if (fsync_done && ni->nid == ni->ino) | |
476 | set_nat_flag(e, HAS_FSYNCED_INODE, true); | |
477 | set_nat_flag(e, HAS_LAST_FSYNC, fsync_done); | |
478 | } | |
b873b798 | 479 | up_write(&nm_i->nat_tree_lock); |
e05df3b1 JK |
480 | } |
481 | ||
4d57b86d | 482 | int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink) |
e05df3b1 JK |
483 | { |
484 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
1b38dc8e | 485 | int nr = nr_shrink; |
e05df3b1 | 486 | |
b873b798 JK |
487 | if (!down_write_trylock(&nm_i->nat_tree_lock)) |
488 | return 0; | |
e05df3b1 | 489 | |
22969158 CY |
490 | spin_lock(&nm_i->nat_list_lock); |
491 | while (nr_shrink) { | |
e05df3b1 | 492 | struct nat_entry *ne; |
22969158 CY |
493 | |
494 | if (list_empty(&nm_i->nat_entries)) | |
495 | break; | |
496 | ||
e05df3b1 JK |
497 | ne = list_first_entry(&nm_i->nat_entries, |
498 | struct nat_entry, list); | |
22969158 CY |
499 | list_del(&ne->list); |
500 | spin_unlock(&nm_i->nat_list_lock); | |
501 | ||
e05df3b1 JK |
502 | __del_from_nat_cache(nm_i, ne); |
503 | nr_shrink--; | |
22969158 CY |
504 | |
505 | spin_lock(&nm_i->nat_list_lock); | |
e05df3b1 | 506 | } |
22969158 CY |
507 | spin_unlock(&nm_i->nat_list_lock); |
508 | ||
b873b798 | 509 | up_write(&nm_i->nat_tree_lock); |
1b38dc8e | 510 | return nr - nr_shrink; |
e05df3b1 JK |
511 | } |
512 | ||
7735730d | 513 | int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, |
4d57b86d | 514 | struct node_info *ni) |
e05df3b1 JK |
515 | { |
516 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
517 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 518 | struct f2fs_journal *journal = curseg->journal; |
e05df3b1 JK |
519 | nid_t start_nid = START_NID(nid); |
520 | struct f2fs_nat_block *nat_blk; | |
521 | struct page *page = NULL; | |
522 | struct f2fs_nat_entry ne; | |
523 | struct nat_entry *e; | |
66a82d1f | 524 | pgoff_t index; |
93770ab7 | 525 | block_t blkaddr; |
e05df3b1 JK |
526 | int i; |
527 | ||
528 | ni->nid = nid; | |
529 | ||
530 | /* Check nat cache */ | |
b873b798 | 531 | down_read(&nm_i->nat_tree_lock); |
e05df3b1 JK |
532 | e = __lookup_nat_cache(nm_i, nid); |
533 | if (e) { | |
534 | ni->ino = nat_get_ino(e); | |
535 | ni->blk_addr = nat_get_blkaddr(e); | |
536 | ni->version = nat_get_version(e); | |
b873b798 | 537 | up_read(&nm_i->nat_tree_lock); |
7735730d | 538 | return 0; |
1515aef0 | 539 | } |
e05df3b1 | 540 | |
3547ea96 JK |
541 | memset(&ne, 0, sizeof(struct f2fs_nat_entry)); |
542 | ||
e05df3b1 | 543 | /* Check current segment summary */ |
b7ad7512 | 544 | down_read(&curseg->journal_rwsem); |
4d57b86d | 545 | i = f2fs_lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0); |
e05df3b1 | 546 | if (i >= 0) { |
dfc08a12 | 547 | ne = nat_in_journal(journal, i); |
e05df3b1 JK |
548 | node_info_from_raw_nat(ni, &ne); |
549 | } | |
b7ad7512 | 550 | up_read(&curseg->journal_rwsem); |
66a82d1f YH |
551 | if (i >= 0) { |
552 | up_read(&nm_i->nat_tree_lock); | |
e05df3b1 | 553 | goto cache; |
66a82d1f | 554 | } |
e05df3b1 JK |
555 | |
556 | /* Fill node_info from nat page */ | |
66a82d1f YH |
557 | index = current_nat_addr(sbi, nid); |
558 | up_read(&nm_i->nat_tree_lock); | |
559 | ||
4d57b86d | 560 | page = f2fs_get_meta_page(sbi, index); |
7735730d CY |
561 | if (IS_ERR(page)) |
562 | return PTR_ERR(page); | |
563 | ||
e05df3b1 JK |
564 | nat_blk = (struct f2fs_nat_block *)page_address(page); |
565 | ne = nat_blk->entries[nid - start_nid]; | |
566 | node_info_from_raw_nat(ni, &ne); | |
567 | f2fs_put_page(page, 1); | |
568 | cache: | |
93770ab7 CY |
569 | blkaddr = le32_to_cpu(ne.block_addr); |
570 | if (__is_valid_data_blkaddr(blkaddr) && | |
571 | !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) | |
572 | return -EFAULT; | |
573 | ||
e05df3b1 | 574 | /* cache nat entry */ |
1515aef0 | 575 | cache_nat_entry(sbi, nid, &ne); |
7735730d | 576 | return 0; |
e05df3b1 JK |
577 | } |
578 | ||
79344efb JK |
579 | /* |
580 | * readahead MAX_RA_NODE number of node pages. | |
581 | */ | |
4d57b86d | 582 | static void f2fs_ra_node_pages(struct page *parent, int start, int n) |
79344efb JK |
583 | { |
584 | struct f2fs_sb_info *sbi = F2FS_P_SB(parent); | |
585 | struct blk_plug plug; | |
586 | int i, end; | |
587 | nid_t nid; | |
588 | ||
589 | blk_start_plug(&plug); | |
590 | ||
591 | /* Then, try readahead for siblings of the desired node */ | |
592 | end = start + n; | |
593 | end = min(end, NIDS_PER_BLOCK); | |
594 | for (i = start; i < end; i++) { | |
595 | nid = get_nid(parent, i, false); | |
4d57b86d | 596 | f2fs_ra_node_page(sbi, nid); |
79344efb JK |
597 | } |
598 | ||
599 | blk_finish_plug(&plug); | |
600 | } | |
601 | ||
4d57b86d | 602 | pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs) |
3cf45747 CY |
603 | { |
604 | const long direct_index = ADDRS_PER_INODE(dn->inode); | |
d02a6e61 CY |
605 | const long direct_blks = ADDRS_PER_BLOCK(dn->inode); |
606 | const long indirect_blks = ADDRS_PER_BLOCK(dn->inode) * NIDS_PER_BLOCK; | |
607 | unsigned int skipped_unit = ADDRS_PER_BLOCK(dn->inode); | |
3cf45747 CY |
608 | int cur_level = dn->cur_level; |
609 | int max_level = dn->max_level; | |
610 | pgoff_t base = 0; | |
611 | ||
612 | if (!dn->max_level) | |
613 | return pgofs + 1; | |
614 | ||
615 | while (max_level-- > cur_level) | |
616 | skipped_unit *= NIDS_PER_BLOCK; | |
617 | ||
618 | switch (dn->max_level) { | |
619 | case 3: | |
620 | base += 2 * indirect_blks; | |
0a4c9265 | 621 | /* fall through */ |
3cf45747 CY |
622 | case 2: |
623 | base += 2 * direct_blks; | |
0a4c9265 | 624 | /* fall through */ |
3cf45747 CY |
625 | case 1: |
626 | base += direct_index; | |
627 | break; | |
628 | default: | |
629 | f2fs_bug_on(F2FS_I_SB(dn->inode), 1); | |
630 | } | |
631 | ||
632 | return ((pgofs - base) / skipped_unit + 1) * skipped_unit + base; | |
633 | } | |
634 | ||
0a8165d7 | 635 | /* |
e05df3b1 JK |
636 | * The maximum depth is four. |
637 | * Offset[0] will have raw inode offset. | |
638 | */ | |
81ca7350 | 639 | static int get_node_path(struct inode *inode, long block, |
de93653f | 640 | int offset[4], unsigned int noffset[4]) |
e05df3b1 | 641 | { |
81ca7350 | 642 | const long direct_index = ADDRS_PER_INODE(inode); |
d02a6e61 | 643 | const long direct_blks = ADDRS_PER_BLOCK(inode); |
e05df3b1 | 644 | const long dptrs_per_blk = NIDS_PER_BLOCK; |
d02a6e61 | 645 | const long indirect_blks = ADDRS_PER_BLOCK(inode) * NIDS_PER_BLOCK; |
e05df3b1 JK |
646 | const long dindirect_blks = indirect_blks * NIDS_PER_BLOCK; |
647 | int n = 0; | |
648 | int level = 0; | |
649 | ||
650 | noffset[0] = 0; | |
651 | ||
652 | if (block < direct_index) { | |
25c0a6e5 | 653 | offset[n] = block; |
e05df3b1 JK |
654 | goto got; |
655 | } | |
656 | block -= direct_index; | |
657 | if (block < direct_blks) { | |
658 | offset[n++] = NODE_DIR1_BLOCK; | |
659 | noffset[n] = 1; | |
25c0a6e5 | 660 | offset[n] = block; |
e05df3b1 JK |
661 | level = 1; |
662 | goto got; | |
663 | } | |
664 | block -= direct_blks; | |
665 | if (block < direct_blks) { | |
666 | offset[n++] = NODE_DIR2_BLOCK; | |
667 | noffset[n] = 2; | |
25c0a6e5 | 668 | offset[n] = block; |
e05df3b1 JK |
669 | level = 1; |
670 | goto got; | |
671 | } | |
672 | block -= direct_blks; | |
673 | if (block < indirect_blks) { | |
674 | offset[n++] = NODE_IND1_BLOCK; | |
675 | noffset[n] = 3; | |
676 | offset[n++] = block / direct_blks; | |
677 | noffset[n] = 4 + offset[n - 1]; | |
25c0a6e5 | 678 | offset[n] = block % direct_blks; |
e05df3b1 JK |
679 | level = 2; |
680 | goto got; | |
681 | } | |
682 | block -= indirect_blks; | |
683 | if (block < indirect_blks) { | |
684 | offset[n++] = NODE_IND2_BLOCK; | |
685 | noffset[n] = 4 + dptrs_per_blk; | |
686 | offset[n++] = block / direct_blks; | |
687 | noffset[n] = 5 + dptrs_per_blk + offset[n - 1]; | |
25c0a6e5 | 688 | offset[n] = block % direct_blks; |
e05df3b1 JK |
689 | level = 2; |
690 | goto got; | |
691 | } | |
692 | block -= indirect_blks; | |
693 | if (block < dindirect_blks) { | |
694 | offset[n++] = NODE_DIND_BLOCK; | |
695 | noffset[n] = 5 + (dptrs_per_blk * 2); | |
696 | offset[n++] = block / indirect_blks; | |
697 | noffset[n] = 6 + (dptrs_per_blk * 2) + | |
698 | offset[n - 1] * (dptrs_per_blk + 1); | |
699 | offset[n++] = (block / direct_blks) % dptrs_per_blk; | |
700 | noffset[n] = 7 + (dptrs_per_blk * 2) + | |
701 | offset[n - 2] * (dptrs_per_blk + 1) + | |
702 | offset[n - 1]; | |
25c0a6e5 | 703 | offset[n] = block % direct_blks; |
e05df3b1 JK |
704 | level = 3; |
705 | goto got; | |
706 | } else { | |
adb6dc19 | 707 | return -E2BIG; |
e05df3b1 JK |
708 | } |
709 | got: | |
710 | return level; | |
711 | } | |
712 | ||
713 | /* | |
714 | * Caller should call f2fs_put_dnode(dn). | |
4f4124d0 | 715 | * Also, it should grab and release a rwsem by calling f2fs_lock_op() and |
7a88ddb5 | 716 | * f2fs_unlock_op() only if mode is set with ALLOC_NODE. |
e05df3b1 | 717 | */ |
4d57b86d | 718 | int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode) |
e05df3b1 | 719 | { |
4081363f | 720 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
e05df3b1 | 721 | struct page *npage[4]; |
f1a3b98e | 722 | struct page *parent = NULL; |
e05df3b1 JK |
723 | int offset[4]; |
724 | unsigned int noffset[4]; | |
725 | nid_t nids[4]; | |
3cf45747 | 726 | int level, i = 0; |
e05df3b1 JK |
727 | int err = 0; |
728 | ||
81ca7350 | 729 | level = get_node_path(dn->inode, index, offset, noffset); |
adb6dc19 JK |
730 | if (level < 0) |
731 | return level; | |
e05df3b1 JK |
732 | |
733 | nids[0] = dn->inode->i_ino; | |
1646cfac | 734 | npage[0] = dn->inode_page; |
e05df3b1 | 735 | |
1646cfac | 736 | if (!npage[0]) { |
4d57b86d | 737 | npage[0] = f2fs_get_node_page(sbi, nids[0]); |
1646cfac JK |
738 | if (IS_ERR(npage[0])) |
739 | return PTR_ERR(npage[0]); | |
740 | } | |
f1a3b98e JK |
741 | |
742 | /* if inline_data is set, should not report any block indices */ | |
743 | if (f2fs_has_inline_data(dn->inode) && index) { | |
76629165 | 744 | err = -ENOENT; |
f1a3b98e JK |
745 | f2fs_put_page(npage[0], 1); |
746 | goto release_out; | |
747 | } | |
748 | ||
e05df3b1 | 749 | parent = npage[0]; |
52c2db3f CL |
750 | if (level != 0) |
751 | nids[1] = get_nid(parent, offset[0], true); | |
e05df3b1 JK |
752 | dn->inode_page = npage[0]; |
753 | dn->inode_page_locked = true; | |
754 | ||
755 | /* get indirect or direct nodes */ | |
756 | for (i = 1; i <= level; i++) { | |
757 | bool done = false; | |
758 | ||
266e97a8 | 759 | if (!nids[i] && mode == ALLOC_NODE) { |
e05df3b1 | 760 | /* alloc new node */ |
4d57b86d | 761 | if (!f2fs_alloc_nid(sbi, &(nids[i]))) { |
e05df3b1 JK |
762 | err = -ENOSPC; |
763 | goto release_pages; | |
764 | } | |
765 | ||
766 | dn->nid = nids[i]; | |
4d57b86d | 767 | npage[i] = f2fs_new_node_page(dn, noffset[i]); |
e05df3b1 | 768 | if (IS_ERR(npage[i])) { |
4d57b86d | 769 | f2fs_alloc_nid_failed(sbi, nids[i]); |
e05df3b1 JK |
770 | err = PTR_ERR(npage[i]); |
771 | goto release_pages; | |
772 | } | |
773 | ||
774 | set_nid(parent, offset[i - 1], nids[i], i == 1); | |
4d57b86d | 775 | f2fs_alloc_nid_done(sbi, nids[i]); |
e05df3b1 | 776 | done = true; |
266e97a8 | 777 | } else if (mode == LOOKUP_NODE_RA && i == level && level > 1) { |
4d57b86d | 778 | npage[i] = f2fs_get_node_page_ra(parent, offset[i - 1]); |
e05df3b1 JK |
779 | if (IS_ERR(npage[i])) { |
780 | err = PTR_ERR(npage[i]); | |
781 | goto release_pages; | |
782 | } | |
783 | done = true; | |
784 | } | |
785 | if (i == 1) { | |
786 | dn->inode_page_locked = false; | |
787 | unlock_page(parent); | |
788 | } else { | |
789 | f2fs_put_page(parent, 1); | |
790 | } | |
791 | ||
792 | if (!done) { | |
4d57b86d | 793 | npage[i] = f2fs_get_node_page(sbi, nids[i]); |
e05df3b1 JK |
794 | if (IS_ERR(npage[i])) { |
795 | err = PTR_ERR(npage[i]); | |
796 | f2fs_put_page(npage[0], 0); | |
797 | goto release_out; | |
798 | } | |
799 | } | |
800 | if (i < level) { | |
801 | parent = npage[i]; | |
802 | nids[i + 1] = get_nid(parent, offset[i], false); | |
803 | } | |
804 | } | |
805 | dn->nid = nids[level]; | |
806 | dn->ofs_in_node = offset[level]; | |
807 | dn->node_page = npage[level]; | |
a2ced1ce | 808 | dn->data_blkaddr = f2fs_data_blkaddr(dn); |
e05df3b1 JK |
809 | return 0; |
810 | ||
811 | release_pages: | |
812 | f2fs_put_page(parent, 1); | |
813 | if (i > 1) | |
814 | f2fs_put_page(npage[0], 0); | |
815 | release_out: | |
816 | dn->inode_page = NULL; | |
817 | dn->node_page = NULL; | |
3cf45747 CY |
818 | if (err == -ENOENT) { |
819 | dn->cur_level = i; | |
820 | dn->max_level = level; | |
0a2aa8fb | 821 | dn->ofs_in_node = offset[level]; |
3cf45747 | 822 | } |
e05df3b1 JK |
823 | return err; |
824 | } | |
825 | ||
7735730d | 826 | static int truncate_node(struct dnode_of_data *dn) |
e05df3b1 | 827 | { |
4081363f | 828 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
e05df3b1 | 829 | struct node_info ni; |
7735730d | 830 | int err; |
0ea295dd | 831 | pgoff_t index; |
e05df3b1 | 832 | |
7735730d CY |
833 | err = f2fs_get_node_info(sbi, dn->nid, &ni); |
834 | if (err) | |
835 | return err; | |
e05df3b1 | 836 | |
e05df3b1 | 837 | /* Deallocate node address */ |
4d57b86d | 838 | f2fs_invalidate_blocks(sbi, ni.blk_addr); |
000519f2 | 839 | dec_valid_node_count(sbi, dn->inode, dn->nid == dn->inode->i_ino); |
479f40c4 | 840 | set_node_addr(sbi, &ni, NULL_ADDR, false); |
e05df3b1 JK |
841 | |
842 | if (dn->nid == dn->inode->i_ino) { | |
4d57b86d | 843 | f2fs_remove_orphan_inode(sbi, dn->nid); |
e05df3b1 | 844 | dec_valid_inode_count(sbi); |
0f18b462 | 845 | f2fs_inode_synced(dn->inode); |
e05df3b1 | 846 | } |
000519f2 | 847 | |
e05df3b1 | 848 | clear_node_page_dirty(dn->node_page); |
caf0047e | 849 | set_sbi_flag(sbi, SBI_IS_DIRTY); |
e05df3b1 | 850 | |
0ea295dd | 851 | index = dn->node_page->index; |
e05df3b1 | 852 | f2fs_put_page(dn->node_page, 1); |
bf39c00a JK |
853 | |
854 | invalidate_mapping_pages(NODE_MAPPING(sbi), | |
0ea295dd | 855 | index, index); |
bf39c00a | 856 | |
e05df3b1 | 857 | dn->node_page = NULL; |
51dd6249 | 858 | trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr); |
7735730d CY |
859 | |
860 | return 0; | |
e05df3b1 JK |
861 | } |
862 | ||
863 | static int truncate_dnode(struct dnode_of_data *dn) | |
864 | { | |
e05df3b1 | 865 | struct page *page; |
7735730d | 866 | int err; |
e05df3b1 JK |
867 | |
868 | if (dn->nid == 0) | |
869 | return 1; | |
870 | ||
871 | /* get direct node */ | |
4d57b86d | 872 | page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); |
45586c70 | 873 | if (PTR_ERR(page) == -ENOENT) |
e05df3b1 JK |
874 | return 1; |
875 | else if (IS_ERR(page)) | |
876 | return PTR_ERR(page); | |
877 | ||
878 | /* Make dnode_of_data for parameter */ | |
879 | dn->node_page = page; | |
880 | dn->ofs_in_node = 0; | |
4d57b86d | 881 | f2fs_truncate_data_blocks(dn); |
7735730d CY |
882 | err = truncate_node(dn); |
883 | if (err) | |
884 | return err; | |
885 | ||
e05df3b1 JK |
886 | return 1; |
887 | } | |
888 | ||
889 | static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs, | |
890 | int ofs, int depth) | |
891 | { | |
e05df3b1 JK |
892 | struct dnode_of_data rdn = *dn; |
893 | struct page *page; | |
894 | struct f2fs_node *rn; | |
895 | nid_t child_nid; | |
896 | unsigned int child_nofs; | |
897 | int freed = 0; | |
898 | int i, ret; | |
899 | ||
900 | if (dn->nid == 0) | |
901 | return NIDS_PER_BLOCK + 1; | |
902 | ||
51dd6249 NJ |
903 | trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr); |
904 | ||
4d57b86d | 905 | page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid); |
51dd6249 NJ |
906 | if (IS_ERR(page)) { |
907 | trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page)); | |
e05df3b1 | 908 | return PTR_ERR(page); |
51dd6249 | 909 | } |
e05df3b1 | 910 | |
4d57b86d | 911 | f2fs_ra_node_pages(page, ofs, NIDS_PER_BLOCK); |
79344efb | 912 | |
45590710 | 913 | rn = F2FS_NODE(page); |
e05df3b1 JK |
914 | if (depth < 3) { |
915 | for (i = ofs; i < NIDS_PER_BLOCK; i++, freed++) { | |
916 | child_nid = le32_to_cpu(rn->in.nid[i]); | |
917 | if (child_nid == 0) | |
918 | continue; | |
919 | rdn.nid = child_nid; | |
920 | ret = truncate_dnode(&rdn); | |
921 | if (ret < 0) | |
922 | goto out_err; | |
12719ae1 JK |
923 | if (set_nid(page, i, 0, false)) |
924 | dn->node_changed = true; | |
e05df3b1 JK |
925 | } |
926 | } else { | |
927 | child_nofs = nofs + ofs * (NIDS_PER_BLOCK + 1) + 1; | |
928 | for (i = ofs; i < NIDS_PER_BLOCK; i++) { | |
929 | child_nid = le32_to_cpu(rn->in.nid[i]); | |
930 | if (child_nid == 0) { | |
931 | child_nofs += NIDS_PER_BLOCK + 1; | |
932 | continue; | |
933 | } | |
934 | rdn.nid = child_nid; | |
935 | ret = truncate_nodes(&rdn, child_nofs, 0, depth - 1); | |
936 | if (ret == (NIDS_PER_BLOCK + 1)) { | |
12719ae1 JK |
937 | if (set_nid(page, i, 0, false)) |
938 | dn->node_changed = true; | |
e05df3b1 JK |
939 | child_nofs += ret; |
940 | } else if (ret < 0 && ret != -ENOENT) { | |
941 | goto out_err; | |
942 | } | |
943 | } | |
944 | freed = child_nofs; | |
945 | } | |
946 | ||
947 | if (!ofs) { | |
948 | /* remove current indirect node */ | |
949 | dn->node_page = page; | |
7735730d CY |
950 | ret = truncate_node(dn); |
951 | if (ret) | |
952 | goto out_err; | |
e05df3b1 JK |
953 | freed++; |
954 | } else { | |
955 | f2fs_put_page(page, 1); | |
956 | } | |
51dd6249 | 957 | trace_f2fs_truncate_nodes_exit(dn->inode, freed); |
e05df3b1 JK |
958 | return freed; |
959 | ||
960 | out_err: | |
961 | f2fs_put_page(page, 1); | |
51dd6249 | 962 | trace_f2fs_truncate_nodes_exit(dn->inode, ret); |
e05df3b1 JK |
963 | return ret; |
964 | } | |
965 | ||
966 | static int truncate_partial_nodes(struct dnode_of_data *dn, | |
967 | struct f2fs_inode *ri, int *offset, int depth) | |
968 | { | |
e05df3b1 JK |
969 | struct page *pages[2]; |
970 | nid_t nid[3]; | |
971 | nid_t child_nid; | |
972 | int err = 0; | |
973 | int i; | |
974 | int idx = depth - 2; | |
975 | ||
976 | nid[0] = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); | |
977 | if (!nid[0]) | |
978 | return 0; | |
979 | ||
980 | /* get indirect nodes in the path */ | |
a225dca3 | 981 | for (i = 0; i < idx + 1; i++) { |
e1c42045 | 982 | /* reference count'll be increased */ |
4d57b86d | 983 | pages[i] = f2fs_get_node_page(F2FS_I_SB(dn->inode), nid[i]); |
e05df3b1 | 984 | if (IS_ERR(pages[i])) { |
e05df3b1 | 985 | err = PTR_ERR(pages[i]); |
a225dca3 | 986 | idx = i - 1; |
e05df3b1 JK |
987 | goto fail; |
988 | } | |
989 | nid[i + 1] = get_nid(pages[i], offset[i + 1], false); | |
990 | } | |
991 | ||
4d57b86d | 992 | f2fs_ra_node_pages(pages[idx], offset[idx + 1], NIDS_PER_BLOCK); |
79344efb | 993 | |
e05df3b1 | 994 | /* free direct nodes linked to a partial indirect node */ |
a225dca3 | 995 | for (i = offset[idx + 1]; i < NIDS_PER_BLOCK; i++) { |
e05df3b1 JK |
996 | child_nid = get_nid(pages[idx], i, false); |
997 | if (!child_nid) | |
998 | continue; | |
999 | dn->nid = child_nid; | |
1000 | err = truncate_dnode(dn); | |
1001 | if (err < 0) | |
1002 | goto fail; | |
12719ae1 JK |
1003 | if (set_nid(pages[idx], i, 0, false)) |
1004 | dn->node_changed = true; | |
e05df3b1 JK |
1005 | } |
1006 | ||
a225dca3 | 1007 | if (offset[idx + 1] == 0) { |
e05df3b1 JK |
1008 | dn->node_page = pages[idx]; |
1009 | dn->nid = nid[idx]; | |
7735730d CY |
1010 | err = truncate_node(dn); |
1011 | if (err) | |
1012 | goto fail; | |
e05df3b1 JK |
1013 | } else { |
1014 | f2fs_put_page(pages[idx], 1); | |
1015 | } | |
1016 | offset[idx]++; | |
a225dca3 | 1017 | offset[idx + 1] = 0; |
1018 | idx--; | |
e05df3b1 | 1019 | fail: |
a225dca3 | 1020 | for (i = idx; i >= 0; i--) |
e05df3b1 | 1021 | f2fs_put_page(pages[i], 1); |
51dd6249 NJ |
1022 | |
1023 | trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err); | |
1024 | ||
e05df3b1 JK |
1025 | return err; |
1026 | } | |
1027 | ||
0a8165d7 | 1028 | /* |
e05df3b1 JK |
1029 | * All the block addresses of data and nodes should be nullified. |
1030 | */ | |
4d57b86d | 1031 | int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from) |
e05df3b1 | 1032 | { |
4081363f | 1033 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
e05df3b1 JK |
1034 | int err = 0, cont = 1; |
1035 | int level, offset[4], noffset[4]; | |
7dd690c8 | 1036 | unsigned int nofs = 0; |
58bfaf44 | 1037 | struct f2fs_inode *ri; |
e05df3b1 JK |
1038 | struct dnode_of_data dn; |
1039 | struct page *page; | |
1040 | ||
51dd6249 NJ |
1041 | trace_f2fs_truncate_inode_blocks_enter(inode, from); |
1042 | ||
81ca7350 | 1043 | level = get_node_path(inode, from, offset, noffset); |
adb6dc19 JK |
1044 | if (level < 0) |
1045 | return level; | |
ff373558 | 1046 | |
4d57b86d | 1047 | page = f2fs_get_node_page(sbi, inode->i_ino); |
51dd6249 NJ |
1048 | if (IS_ERR(page)) { |
1049 | trace_f2fs_truncate_inode_blocks_exit(inode, PTR_ERR(page)); | |
e05df3b1 | 1050 | return PTR_ERR(page); |
51dd6249 | 1051 | } |
e05df3b1 JK |
1052 | |
1053 | set_new_dnode(&dn, inode, page, NULL, 0); | |
1054 | unlock_page(page); | |
1055 | ||
58bfaf44 | 1056 | ri = F2FS_INODE(page); |
e05df3b1 JK |
1057 | switch (level) { |
1058 | case 0: | |
1059 | case 1: | |
1060 | nofs = noffset[1]; | |
1061 | break; | |
1062 | case 2: | |
1063 | nofs = noffset[1]; | |
1064 | if (!offset[level - 1]) | |
1065 | goto skip_partial; | |
58bfaf44 | 1066 | err = truncate_partial_nodes(&dn, ri, offset, level); |
e05df3b1 JK |
1067 | if (err < 0 && err != -ENOENT) |
1068 | goto fail; | |
1069 | nofs += 1 + NIDS_PER_BLOCK; | |
1070 | break; | |
1071 | case 3: | |
1072 | nofs = 5 + 2 * NIDS_PER_BLOCK; | |
1073 | if (!offset[level - 1]) | |
1074 | goto skip_partial; | |
58bfaf44 | 1075 | err = truncate_partial_nodes(&dn, ri, offset, level); |
e05df3b1 JK |
1076 | if (err < 0 && err != -ENOENT) |
1077 | goto fail; | |
1078 | break; | |
1079 | default: | |
1080 | BUG(); | |
1081 | } | |
1082 | ||
1083 | skip_partial: | |
1084 | while (cont) { | |
58bfaf44 | 1085 | dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]); |
e05df3b1 JK |
1086 | switch (offset[0]) { |
1087 | case NODE_DIR1_BLOCK: | |
1088 | case NODE_DIR2_BLOCK: | |
1089 | err = truncate_dnode(&dn); | |
1090 | break; | |
1091 | ||
1092 | case NODE_IND1_BLOCK: | |
1093 | case NODE_IND2_BLOCK: | |
1094 | err = truncate_nodes(&dn, nofs, offset[1], 2); | |
1095 | break; | |
1096 | ||
1097 | case NODE_DIND_BLOCK: | |
1098 | err = truncate_nodes(&dn, nofs, offset[1], 3); | |
1099 | cont = 0; | |
1100 | break; | |
1101 | ||
1102 | default: | |
1103 | BUG(); | |
1104 | } | |
1105 | if (err < 0 && err != -ENOENT) | |
1106 | goto fail; | |
1107 | if (offset[1] == 0 && | |
58bfaf44 | 1108 | ri->i_nid[offset[0] - NODE_DIR1_BLOCK]) { |
e05df3b1 | 1109 | lock_page(page); |
ff373558 | 1110 | BUG_ON(page->mapping != NODE_MAPPING(sbi)); |
bae0ee7a | 1111 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
58bfaf44 | 1112 | ri->i_nid[offset[0] - NODE_DIR1_BLOCK] = 0; |
e05df3b1 JK |
1113 | set_page_dirty(page); |
1114 | unlock_page(page); | |
1115 | } | |
1116 | offset[1] = 0; | |
1117 | offset[0]++; | |
1118 | nofs += err; | |
1119 | } | |
1120 | fail: | |
1121 | f2fs_put_page(page, 0); | |
51dd6249 | 1122 | trace_f2fs_truncate_inode_blocks_exit(inode, err); |
e05df3b1 JK |
1123 | return err > 0 ? 0 : err; |
1124 | } | |
1125 | ||
9c77f754 | 1126 | /* caller must lock inode page */ |
4d57b86d | 1127 | int f2fs_truncate_xattr_node(struct inode *inode) |
4f16fb0f | 1128 | { |
4081363f | 1129 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
4f16fb0f JK |
1130 | nid_t nid = F2FS_I(inode)->i_xattr_nid; |
1131 | struct dnode_of_data dn; | |
1132 | struct page *npage; | |
7735730d | 1133 | int err; |
4f16fb0f JK |
1134 | |
1135 | if (!nid) | |
1136 | return 0; | |
1137 | ||
4d57b86d | 1138 | npage = f2fs_get_node_page(sbi, nid); |
4f16fb0f JK |
1139 | if (IS_ERR(npage)) |
1140 | return PTR_ERR(npage); | |
1141 | ||
7735730d CY |
1142 | set_new_dnode(&dn, inode, NULL, npage, nid); |
1143 | err = truncate_node(&dn); | |
1144 | if (err) { | |
1145 | f2fs_put_page(npage, 1); | |
1146 | return err; | |
1147 | } | |
1148 | ||
205b9822 | 1149 | f2fs_i_xnid_write(inode, 0); |
65985d93 | 1150 | |
4f16fb0f JK |
1151 | return 0; |
1152 | } | |
1153 | ||
39936837 | 1154 | /* |
4f4124d0 CY |
1155 | * Caller should grab and release a rwsem by calling f2fs_lock_op() and |
1156 | * f2fs_unlock_op(). | |
39936837 | 1157 | */ |
4d57b86d | 1158 | int f2fs_remove_inode_page(struct inode *inode) |
e05df3b1 | 1159 | { |
e05df3b1 | 1160 | struct dnode_of_data dn; |
13ec7297 | 1161 | int err; |
e05df3b1 | 1162 | |
c2e69583 | 1163 | set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); |
4d57b86d | 1164 | err = f2fs_get_dnode_of_data(&dn, 0, LOOKUP_NODE); |
13ec7297 CY |
1165 | if (err) |
1166 | return err; | |
e05df3b1 | 1167 | |
4d57b86d | 1168 | err = f2fs_truncate_xattr_node(inode); |
13ec7297 | 1169 | if (err) { |
c2e69583 | 1170 | f2fs_put_dnode(&dn); |
13ec7297 | 1171 | return err; |
e05df3b1 | 1172 | } |
c2e69583 JK |
1173 | |
1174 | /* remove potential inline_data blocks */ | |
1175 | if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || | |
1176 | S_ISLNK(inode->i_mode)) | |
4d57b86d | 1177 | f2fs_truncate_data_blocks_range(&dn, 1); |
c2e69583 | 1178 | |
e1c42045 | 1179 | /* 0 is possible, after f2fs_new_inode() has failed */ |
8d714f8a JK |
1180 | if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) { |
1181 | f2fs_put_dnode(&dn); | |
1182 | return -EIO; | |
1183 | } | |
8b6810f8 CY |
1184 | |
1185 | if (unlikely(inode->i_blocks != 0 && inode->i_blocks != 8)) { | |
097a7686 CY |
1186 | f2fs_warn(F2FS_I_SB(inode), |
1187 | "f2fs_remove_inode_page: inconsistent i_blocks, ino:%lu, iblocks:%llu", | |
1188 | inode->i_ino, (unsigned long long)inode->i_blocks); | |
8b6810f8 CY |
1189 | set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); |
1190 | } | |
c2e69583 JK |
1191 | |
1192 | /* will put inode & node pages */ | |
7735730d CY |
1193 | err = truncate_node(&dn); |
1194 | if (err) { | |
1195 | f2fs_put_dnode(&dn); | |
1196 | return err; | |
1197 | } | |
13ec7297 | 1198 | return 0; |
e05df3b1 JK |
1199 | } |
1200 | ||
4d57b86d | 1201 | struct page *f2fs_new_inode_page(struct inode *inode) |
e05df3b1 | 1202 | { |
e05df3b1 JK |
1203 | struct dnode_of_data dn; |
1204 | ||
1205 | /* allocate inode page for new inode */ | |
1206 | set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino); | |
44a83ff6 JK |
1207 | |
1208 | /* caller should f2fs_put_page(page, 1); */ | |
4d57b86d | 1209 | return f2fs_new_node_page(&dn, 0); |
e05df3b1 JK |
1210 | } |
1211 | ||
4d57b86d | 1212 | struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs) |
e05df3b1 | 1213 | { |
4081363f | 1214 | struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); |
25cc5d3b | 1215 | struct node_info new_ni; |
e05df3b1 JK |
1216 | struct page *page; |
1217 | int err; | |
1218 | ||
91942321 | 1219 | if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC))) |
e05df3b1 JK |
1220 | return ERR_PTR(-EPERM); |
1221 | ||
300e129c | 1222 | page = f2fs_grab_cache_page(NODE_MAPPING(sbi), dn->nid, false); |
e05df3b1 JK |
1223 | if (!page) |
1224 | return ERR_PTR(-ENOMEM); | |
1225 | ||
0abd675e | 1226 | if (unlikely((err = inc_valid_node_count(sbi, dn->inode, !ofs)))) |
9c02740c | 1227 | goto fail; |
0abd675e | 1228 | |
25cc5d3b | 1229 | #ifdef CONFIG_F2FS_CHECK_FS |
7735730d CY |
1230 | err = f2fs_get_node_info(sbi, dn->nid, &new_ni); |
1231 | if (err) { | |
1232 | dec_valid_node_count(sbi, dn->inode, !ofs); | |
1233 | goto fail; | |
1234 | } | |
25cc5d3b JK |
1235 | f2fs_bug_on(sbi, new_ni.blk_addr != NULL_ADDR); |
1236 | #endif | |
1237 | new_ni.nid = dn->nid; | |
e05df3b1 | 1238 | new_ni.ino = dn->inode->i_ino; |
25cc5d3b JK |
1239 | new_ni.blk_addr = NULL_ADDR; |
1240 | new_ni.flag = 0; | |
1241 | new_ni.version = 0; | |
479f40c4 | 1242 | set_node_addr(sbi, &new_ni, NEW_ADDR, false); |
9c02740c | 1243 | |
bae0ee7a | 1244 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
9c02740c | 1245 | fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true); |
c5667575 | 1246 | set_cold_node(page, S_ISDIR(dn->inode->i_mode)); |
237c0790 JK |
1247 | if (!PageUptodate(page)) |
1248 | SetPageUptodate(page); | |
12719ae1 JK |
1249 | if (set_page_dirty(page)) |
1250 | dn->node_changed = true; | |
e05df3b1 | 1251 | |
4bc8e9bc | 1252 | if (f2fs_has_xattr_block(ofs)) |
205b9822 | 1253 | f2fs_i_xnid_write(dn->inode, dn->nid); |
479bd73a | 1254 | |
e05df3b1 JK |
1255 | if (ofs == 0) |
1256 | inc_valid_inode_count(sbi); | |
e05df3b1 JK |
1257 | return page; |
1258 | ||
1259 | fail: | |
71e9fec5 | 1260 | clear_node_page_dirty(page); |
e05df3b1 JK |
1261 | f2fs_put_page(page, 1); |
1262 | return ERR_PTR(err); | |
1263 | } | |
1264 | ||
56ae674c JK |
1265 | /* |
1266 | * Caller should do after getting the following values. | |
1267 | * 0: f2fs_put_page(page, 0) | |
86531d6b | 1268 | * LOCKED_PAGE or error: f2fs_put_page(page, 1) |
56ae674c | 1269 | */ |
04d328de | 1270 | static int read_node_page(struct page *page, int op_flags) |
e05df3b1 | 1271 | { |
4081363f | 1272 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); |
e05df3b1 | 1273 | struct node_info ni; |
cf04e8eb | 1274 | struct f2fs_io_info fio = { |
05ca3632 | 1275 | .sbi = sbi, |
cf04e8eb | 1276 | .type = NODE, |
04d328de MC |
1277 | .op = REQ_OP_READ, |
1278 | .op_flags = op_flags, | |
05ca3632 | 1279 | .page = page, |
4375a336 | 1280 | .encrypted_page = NULL, |
cf04e8eb | 1281 | }; |
7735730d | 1282 | int err; |
e05df3b1 | 1283 | |
54c55c4e | 1284 | if (PageUptodate(page)) { |
b42b179b CY |
1285 | if (!f2fs_inode_chksum_verify(sbi, page)) { |
1286 | ClearPageUptodate(page); | |
10f966bb | 1287 | return -EFSBADCRC; |
b42b179b | 1288 | } |
3bdad3c7 | 1289 | return LOCKED_PAGE; |
54c55c4e | 1290 | } |
3bdad3c7 | 1291 | |
7735730d CY |
1292 | err = f2fs_get_node_info(sbi, page->index, &ni); |
1293 | if (err) | |
1294 | return err; | |
e05df3b1 | 1295 | |
83a3bfdb JK |
1296 | if (unlikely(ni.blk_addr == NULL_ADDR) || |
1297 | is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) { | |
2bca1e23 | 1298 | ClearPageUptodate(page); |
e05df3b1 | 1299 | return -ENOENT; |
393ff91f JK |
1300 | } |
1301 | ||
7a9d7548 | 1302 | fio.new_blkaddr = fio.old_blkaddr = ni.blk_addr; |
8b83ac81 CY |
1303 | |
1304 | err = f2fs_submit_page_bio(&fio); | |
1305 | ||
1306 | if (!err) | |
1307 | f2fs_update_iostat(sbi, FS_NODE_READ_IO, F2FS_BLKSIZE); | |
1308 | ||
1309 | return err; | |
e05df3b1 JK |
1310 | } |
1311 | ||
0a8165d7 | 1312 | /* |
e05df3b1 JK |
1313 | * Readahead a node page |
1314 | */ | |
4d57b86d | 1315 | void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 | 1316 | { |
e05df3b1 | 1317 | struct page *apage; |
56ae674c | 1318 | int err; |
e05df3b1 | 1319 | |
e8458725 CY |
1320 | if (!nid) |
1321 | return; | |
4d57b86d | 1322 | if (f2fs_check_nid_range(sbi, nid)) |
a4f843bd | 1323 | return; |
e8458725 | 1324 | |
5ec2d99d | 1325 | apage = xa_load(&NODE_MAPPING(sbi)->i_pages, nid); |
999270de | 1326 | if (apage) |
393ff91f | 1327 | return; |
e05df3b1 | 1328 | |
300e129c | 1329 | apage = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); |
e05df3b1 JK |
1330 | if (!apage) |
1331 | return; | |
1332 | ||
70246286 | 1333 | err = read_node_page(apage, REQ_RAHEAD); |
86531d6b | 1334 | f2fs_put_page(apage, err ? 1 : 0); |
e05df3b1 JK |
1335 | } |
1336 | ||
17a0ee55 | 1337 | static struct page *__get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid, |
0e022ea8 | 1338 | struct page *parent, int start) |
e05df3b1 | 1339 | { |
e05df3b1 | 1340 | struct page *page; |
0e022ea8 | 1341 | int err; |
e05df3b1 | 1342 | |
e05df3b1 JK |
1343 | if (!nid) |
1344 | return ERR_PTR(-ENOENT); | |
4d57b86d | 1345 | if (f2fs_check_nid_range(sbi, nid)) |
a4f843bd | 1346 | return ERR_PTR(-EINVAL); |
afcb7ca0 | 1347 | repeat: |
300e129c | 1348 | page = f2fs_grab_cache_page(NODE_MAPPING(sbi), nid, false); |
e05df3b1 JK |
1349 | if (!page) |
1350 | return ERR_PTR(-ENOMEM); | |
1351 | ||
70fd7614 | 1352 | err = read_node_page(page, 0); |
86531d6b JK |
1353 | if (err < 0) { |
1354 | f2fs_put_page(page, 1); | |
e05df3b1 | 1355 | return ERR_PTR(err); |
86531d6b | 1356 | } else if (err == LOCKED_PAGE) { |
1f258ec1 | 1357 | err = 0; |
56ae674c | 1358 | goto page_hit; |
86531d6b | 1359 | } |
e05df3b1 | 1360 | |
0e022ea8 | 1361 | if (parent) |
4d57b86d | 1362 | f2fs_ra_node_pages(parent, start + 1, MAX_RA_NODE); |
c718379b | 1363 | |
e05df3b1 | 1364 | lock_page(page); |
0e022ea8 | 1365 | |
4ef51a8f | 1366 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { |
afcb7ca0 JK |
1367 | f2fs_put_page(page, 1); |
1368 | goto repeat; | |
1369 | } | |
1563ac75 | 1370 | |
1f258ec1 CY |
1371 | if (unlikely(!PageUptodate(page))) { |
1372 | err = -EIO; | |
1563ac75 | 1373 | goto out_err; |
1f258ec1 | 1374 | } |
704956ec CY |
1375 | |
1376 | if (!f2fs_inode_chksum_verify(sbi, page)) { | |
10f966bb | 1377 | err = -EFSBADCRC; |
704956ec CY |
1378 | goto out_err; |
1379 | } | |
e0f56cb4 | 1380 | page_hit: |
0c9df7fb | 1381 | if(unlikely(nid != nid_of_node(page))) { |
dcbb4c10 JP |
1382 | f2fs_warn(sbi, "inconsistent node block, nid:%lu, node_footer[nid:%u,ino:%u,ofs:%u,cpver:%llu,blkaddr:%u]", |
1383 | nid, nid_of_node(page), ino_of_node(page), | |
1384 | ofs_of_node(page), cpver_of_node(page), | |
1385 | next_blkaddr_of_node(page)); | |
1f258ec1 | 1386 | err = -EINVAL; |
0c9df7fb | 1387 | out_err: |
ee605234 | 1388 | ClearPageUptodate(page); |
0c9df7fb | 1389 | f2fs_put_page(page, 1); |
1f258ec1 | 1390 | return ERR_PTR(err); |
0c9df7fb | 1391 | } |
e05df3b1 JK |
1392 | return page; |
1393 | } | |
1394 | ||
4d57b86d | 1395 | struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid) |
0e022ea8 CY |
1396 | { |
1397 | return __get_node_page(sbi, nid, NULL, 0); | |
1398 | } | |
1399 | ||
4d57b86d | 1400 | struct page *f2fs_get_node_page_ra(struct page *parent, int start) |
0e022ea8 CY |
1401 | { |
1402 | struct f2fs_sb_info *sbi = F2FS_P_SB(parent); | |
1403 | nid_t nid = get_nid(parent, start, false); | |
1404 | ||
1405 | return __get_node_page(sbi, nid, parent, start); | |
1406 | } | |
1407 | ||
2049d4fc JK |
1408 | static void flush_inline_data(struct f2fs_sb_info *sbi, nid_t ino) |
1409 | { | |
1410 | struct inode *inode; | |
1411 | struct page *page; | |
0f3311a8 | 1412 | int ret; |
2049d4fc JK |
1413 | |
1414 | /* should flush inline_data before evict_inode */ | |
1415 | inode = ilookup(sbi->sb, ino); | |
1416 | if (!inode) | |
1417 | return; | |
1418 | ||
01eccef7 CY |
1419 | page = f2fs_pagecache_get_page(inode->i_mapping, 0, |
1420 | FGP_LOCK|FGP_NOWAIT, 0); | |
2049d4fc JK |
1421 | if (!page) |
1422 | goto iput_out; | |
1423 | ||
1424 | if (!PageUptodate(page)) | |
1425 | goto page_out; | |
1426 | ||
1427 | if (!PageDirty(page)) | |
1428 | goto page_out; | |
1429 | ||
1430 | if (!clear_page_dirty_for_io(page)) | |
1431 | goto page_out; | |
1432 | ||
0f3311a8 CY |
1433 | ret = f2fs_write_inline_data(inode, page); |
1434 | inode_dec_dirty_pages(inode); | |
4d57b86d | 1435 | f2fs_remove_dirty_inode(inode); |
0f3311a8 | 1436 | if (ret) |
2049d4fc JK |
1437 | set_page_dirty(page); |
1438 | page_out: | |
4a6de50d | 1439 | f2fs_put_page(page, 1); |
2049d4fc JK |
1440 | iput_out: |
1441 | iput(inode); | |
1442 | } | |
1443 | ||
608514de JK |
1444 | static struct page *last_fsync_dnode(struct f2fs_sb_info *sbi, nid_t ino) |
1445 | { | |
028a63a6 | 1446 | pgoff_t index; |
608514de JK |
1447 | struct pagevec pvec; |
1448 | struct page *last_page = NULL; | |
028a63a6 | 1449 | int nr_pages; |
608514de | 1450 | |
86679820 | 1451 | pagevec_init(&pvec); |
608514de | 1452 | index = 0; |
028a63a6 JK |
1453 | |
1454 | while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, | |
67fd707f | 1455 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 1456 | int i; |
608514de JK |
1457 | |
1458 | for (i = 0; i < nr_pages; i++) { | |
1459 | struct page *page = pvec.pages[i]; | |
1460 | ||
1461 | if (unlikely(f2fs_cp_error(sbi))) { | |
1462 | f2fs_put_page(last_page, 0); | |
1463 | pagevec_release(&pvec); | |
1464 | return ERR_PTR(-EIO); | |
1465 | } | |
1466 | ||
1467 | if (!IS_DNODE(page) || !is_cold_node(page)) | |
1468 | continue; | |
1469 | if (ino_of_node(page) != ino) | |
1470 | continue; | |
1471 | ||
1472 | lock_page(page); | |
1473 | ||
1474 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { | |
1475 | continue_unlock: | |
1476 | unlock_page(page); | |
1477 | continue; | |
1478 | } | |
1479 | if (ino_of_node(page) != ino) | |
1480 | goto continue_unlock; | |
1481 | ||
1482 | if (!PageDirty(page)) { | |
1483 | /* someone wrote it for us */ | |
1484 | goto continue_unlock; | |
1485 | } | |
1486 | ||
1487 | if (last_page) | |
1488 | f2fs_put_page(last_page, 0); | |
1489 | ||
1490 | get_page(page); | |
1491 | last_page = page; | |
1492 | unlock_page(page); | |
1493 | } | |
1494 | pagevec_release(&pvec); | |
1495 | cond_resched(); | |
1496 | } | |
1497 | return last_page; | |
1498 | } | |
1499 | ||
d68f735b | 1500 | static int __write_node_page(struct page *page, bool atomic, bool *submitted, |
b0af6d49 | 1501 | struct writeback_control *wbc, bool do_balance, |
50fa53ec | 1502 | enum iostat_type io_type, unsigned int *seq_id) |
faa24895 JK |
1503 | { |
1504 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); | |
1505 | nid_t nid; | |
1506 | struct node_info ni; | |
1507 | struct f2fs_io_info fio = { | |
1508 | .sbi = sbi, | |
39d787be | 1509 | .ino = ino_of_node(page), |
faa24895 JK |
1510 | .type = NODE, |
1511 | .op = REQ_OP_WRITE, | |
1512 | .op_flags = wbc_to_write_flags(wbc), | |
1513 | .page = page, | |
1514 | .encrypted_page = NULL, | |
d68f735b | 1515 | .submitted = false, |
b0af6d49 | 1516 | .io_type = io_type, |
578c6478 | 1517 | .io_wbc = wbc, |
faa24895 | 1518 | }; |
50fa53ec | 1519 | unsigned int seq; |
faa24895 JK |
1520 | |
1521 | trace_f2fs_writepage(page, NODE); | |
1522 | ||
6d7c865c JK |
1523 | if (unlikely(f2fs_cp_error(sbi))) { |
1524 | if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) { | |
1525 | ClearPageUptodate(page); | |
1526 | dec_page_count(sbi, F2FS_DIRTY_NODES); | |
1527 | unlock_page(page); | |
1528 | return 0; | |
1529 | } | |
868de613 | 1530 | goto redirty_out; |
6d7c865c | 1531 | } |
db198ae0 | 1532 | |
faa24895 JK |
1533 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
1534 | goto redirty_out; | |
faa24895 | 1535 | |
100c0655 JK |
1536 | if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && |
1537 | wbc->sync_mode == WB_SYNC_NONE && | |
fd8c8caf CY |
1538 | IS_DNODE(page) && is_cold_node(page)) |
1539 | goto redirty_out; | |
1540 | ||
faa24895 JK |
1541 | /* get old block addr of this node page */ |
1542 | nid = nid_of_node(page); | |
1543 | f2fs_bug_on(sbi, page->index != nid); | |
1544 | ||
7735730d CY |
1545 | if (f2fs_get_node_info(sbi, nid, &ni)) |
1546 | goto redirty_out; | |
1547 | ||
faa24895 JK |
1548 | if (wbc->for_reclaim) { |
1549 | if (!down_read_trylock(&sbi->node_write)) | |
1550 | goto redirty_out; | |
1551 | } else { | |
1552 | down_read(&sbi->node_write); | |
1553 | } | |
1554 | ||
faa24895 JK |
1555 | /* This page is already truncated */ |
1556 | if (unlikely(ni.blk_addr == NULL_ADDR)) { | |
1557 | ClearPageUptodate(page); | |
1558 | dec_page_count(sbi, F2FS_DIRTY_NODES); | |
1559 | up_read(&sbi->node_write); | |
1560 | unlock_page(page); | |
1561 | return 0; | |
1562 | } | |
1563 | ||
c9b60788 | 1564 | if (__is_valid_data_blkaddr(ni.blk_addr) && |
93770ab7 CY |
1565 | !f2fs_is_valid_blkaddr(sbi, ni.blk_addr, |
1566 | DATA_GENERIC_ENHANCE)) { | |
89d13c38 | 1567 | up_read(&sbi->node_write); |
c9b60788 | 1568 | goto redirty_out; |
89d13c38 | 1569 | } |
c9b60788 | 1570 | |
e7c75ab0 JK |
1571 | if (atomic && !test_opt(sbi, NOBARRIER)) |
1572 | fio.op_flags |= REQ_PREFLUSH | REQ_FUA; | |
1573 | ||
dc5a9412 | 1574 | /* should add to global list before clearing PAGECACHE status */ |
50fa53ec CY |
1575 | if (f2fs_in_warm_node_list(sbi, page)) { |
1576 | seq = f2fs_add_fsync_node_entry(sbi, page); | |
1577 | if (seq_id) | |
1578 | *seq_id = seq; | |
1579 | } | |
1580 | ||
dc5a9412 CY |
1581 | set_page_writeback(page); |
1582 | ClearPageError(page); | |
1583 | ||
faa24895 | 1584 | fio.old_blkaddr = ni.blk_addr; |
4d57b86d | 1585 | f2fs_do_write_node_page(nid, &fio); |
faa24895 JK |
1586 | set_node_addr(sbi, &ni, fio.new_blkaddr, is_fsync_dnode(page)); |
1587 | dec_page_count(sbi, F2FS_DIRTY_NODES); | |
1588 | up_read(&sbi->node_write); | |
1589 | ||
d68f735b | 1590 | if (wbc->for_reclaim) { |
bab475c5 | 1591 | f2fs_submit_merged_write_cond(sbi, NULL, page, 0, NODE); |
d68f735b JK |
1592 | submitted = NULL; |
1593 | } | |
faa24895 JK |
1594 | |
1595 | unlock_page(page); | |
1596 | ||
d68f735b | 1597 | if (unlikely(f2fs_cp_error(sbi))) { |
b9109b0e | 1598 | f2fs_submit_merged_write(sbi, NODE); |
d68f735b JK |
1599 | submitted = NULL; |
1600 | } | |
1601 | if (submitted) | |
1602 | *submitted = fio.submitted; | |
faa24895 | 1603 | |
401db79f YS |
1604 | if (do_balance) |
1605 | f2fs_balance_fs(sbi, false); | |
faa24895 JK |
1606 | return 0; |
1607 | ||
1608 | redirty_out: | |
1609 | redirty_page_for_writepage(wbc, page); | |
1610 | return AOP_WRITEPAGE_ACTIVATE; | |
1611 | } | |
1612 | ||
48018b4c | 1613 | int f2fs_move_node_page(struct page *node_page, int gc_type) |
f15194fc | 1614 | { |
48018b4c CY |
1615 | int err = 0; |
1616 | ||
f15194fc YH |
1617 | if (gc_type == FG_GC) { |
1618 | struct writeback_control wbc = { | |
1619 | .sync_mode = WB_SYNC_ALL, | |
1620 | .nr_to_write = 1, | |
1621 | .for_reclaim = 0, | |
1622 | }; | |
1623 | ||
bae0ee7a | 1624 | f2fs_wait_on_page_writeback(node_page, NODE, true, true); |
8d64d365 CY |
1625 | |
1626 | set_page_dirty(node_page); | |
1627 | ||
48018b4c CY |
1628 | if (!clear_page_dirty_for_io(node_page)) { |
1629 | err = -EAGAIN; | |
f15194fc | 1630 | goto out_page; |
48018b4c | 1631 | } |
f15194fc YH |
1632 | |
1633 | if (__write_node_page(node_page, false, NULL, | |
48018b4c CY |
1634 | &wbc, false, FS_GC_NODE_IO, NULL)) { |
1635 | err = -EAGAIN; | |
f15194fc | 1636 | unlock_page(node_page); |
48018b4c | 1637 | } |
f15194fc YH |
1638 | goto release_page; |
1639 | } else { | |
1640 | /* set page dirty and write it */ | |
1641 | if (!PageWriteback(node_page)) | |
1642 | set_page_dirty(node_page); | |
1643 | } | |
1644 | out_page: | |
1645 | unlock_page(node_page); | |
1646 | release_page: | |
1647 | f2fs_put_page(node_page, 0); | |
48018b4c | 1648 | return err; |
f15194fc YH |
1649 | } |
1650 | ||
faa24895 JK |
1651 | static int f2fs_write_node_page(struct page *page, |
1652 | struct writeback_control *wbc) | |
1653 | { | |
50fa53ec CY |
1654 | return __write_node_page(page, false, NULL, wbc, false, |
1655 | FS_NODE_IO, NULL); | |
faa24895 JK |
1656 | } |
1657 | ||
4d57b86d | 1658 | int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, |
50fa53ec CY |
1659 | struct writeback_control *wbc, bool atomic, |
1660 | unsigned int *seq_id) | |
e05df3b1 | 1661 | { |
028a63a6 | 1662 | pgoff_t index; |
e05df3b1 | 1663 | struct pagevec pvec; |
c267ec15 | 1664 | int ret = 0; |
608514de JK |
1665 | struct page *last_page = NULL; |
1666 | bool marked = false; | |
26de9b11 | 1667 | nid_t ino = inode->i_ino; |
028a63a6 | 1668 | int nr_pages; |
bab475c5 | 1669 | int nwritten = 0; |
52681375 | 1670 | |
608514de JK |
1671 | if (atomic) { |
1672 | last_page = last_fsync_dnode(sbi, ino); | |
1673 | if (IS_ERR_OR_NULL(last_page)) | |
1674 | return PTR_ERR_OR_ZERO(last_page); | |
1675 | } | |
1676 | retry: | |
86679820 | 1677 | pagevec_init(&pvec); |
52681375 | 1678 | index = 0; |
028a63a6 JK |
1679 | |
1680 | while ((nr_pages = pagevec_lookup_tag(&pvec, NODE_MAPPING(sbi), &index, | |
67fd707f | 1681 | PAGECACHE_TAG_DIRTY))) { |
028a63a6 | 1682 | int i; |
52681375 JK |
1683 | |
1684 | for (i = 0; i < nr_pages; i++) { | |
1685 | struct page *page = pvec.pages[i]; | |
d68f735b | 1686 | bool submitted = false; |
52681375 JK |
1687 | |
1688 | if (unlikely(f2fs_cp_error(sbi))) { | |
608514de | 1689 | f2fs_put_page(last_page, 0); |
52681375 | 1690 | pagevec_release(&pvec); |
9de69279 CY |
1691 | ret = -EIO; |
1692 | goto out; | |
52681375 JK |
1693 | } |
1694 | ||
1695 | if (!IS_DNODE(page) || !is_cold_node(page)) | |
1696 | continue; | |
1697 | if (ino_of_node(page) != ino) | |
1698 | continue; | |
1699 | ||
1700 | lock_page(page); | |
1701 | ||
1702 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { | |
1703 | continue_unlock: | |
1704 | unlock_page(page); | |
1705 | continue; | |
1706 | } | |
1707 | if (ino_of_node(page) != ino) | |
1708 | goto continue_unlock; | |
1709 | ||
608514de | 1710 | if (!PageDirty(page) && page != last_page) { |
52681375 JK |
1711 | /* someone wrote it for us */ |
1712 | goto continue_unlock; | |
1713 | } | |
1714 | ||
bae0ee7a | 1715 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
52681375 | 1716 | |
d29fd172 JK |
1717 | set_fsync_mark(page, 0); |
1718 | set_dentry_mark(page, 0); | |
1719 | ||
608514de JK |
1720 | if (!atomic || page == last_page) { |
1721 | set_fsync_mark(page, 1); | |
26de9b11 JK |
1722 | if (IS_INODE(page)) { |
1723 | if (is_inode_flag_set(inode, | |
1724 | FI_DIRTY_INODE)) | |
4d57b86d | 1725 | f2fs_update_inode(inode, page); |
608514de | 1726 | set_dentry_mark(page, |
4d57b86d | 1727 | f2fs_need_dentry_mark(sbi, ino)); |
26de9b11 | 1728 | } |
608514de JK |
1729 | /* may be written by other thread */ |
1730 | if (!PageDirty(page)) | |
1731 | set_page_dirty(page); | |
1732 | } | |
1733 | ||
1734 | if (!clear_page_dirty_for_io(page)) | |
1735 | goto continue_unlock; | |
52681375 | 1736 | |
e7c75ab0 | 1737 | ret = __write_node_page(page, atomic && |
d68f735b | 1738 | page == last_page, |
b0af6d49 | 1739 | &submitted, wbc, true, |
50fa53ec | 1740 | FS_NODE_IO, seq_id); |
c267ec15 | 1741 | if (ret) { |
52681375 | 1742 | unlock_page(page); |
608514de JK |
1743 | f2fs_put_page(last_page, 0); |
1744 | break; | |
d68f735b | 1745 | } else if (submitted) { |
bab475c5 | 1746 | nwritten++; |
608514de | 1747 | } |
3f5f4959 | 1748 | |
608514de JK |
1749 | if (page == last_page) { |
1750 | f2fs_put_page(page, 0); | |
1751 | marked = true; | |
52681375 | 1752 | break; |
c267ec15 | 1753 | } |
52681375 JK |
1754 | } |
1755 | pagevec_release(&pvec); | |
1756 | cond_resched(); | |
1757 | ||
608514de | 1758 | if (ret || marked) |
52681375 JK |
1759 | break; |
1760 | } | |
608514de | 1761 | if (!ret && atomic && !marked) { |
dcbb4c10 JP |
1762 | f2fs_debug(sbi, "Retry to write fsync mark: ino=%u, idx=%lx", |
1763 | ino, last_page->index); | |
608514de | 1764 | lock_page(last_page); |
bae0ee7a | 1765 | f2fs_wait_on_page_writeback(last_page, NODE, true, true); |
608514de JK |
1766 | set_page_dirty(last_page); |
1767 | unlock_page(last_page); | |
1768 | goto retry; | |
1769 | } | |
9de69279 | 1770 | out: |
bab475c5 CY |
1771 | if (nwritten) |
1772 | f2fs_submit_merged_write_cond(sbi, NULL, NULL, ino, NODE); | |
c267ec15 | 1773 | return ret ? -EIO: 0; |
52681375 JK |
1774 | } |
1775 | ||
052a82d8 CY |
1776 | static int f2fs_match_ino(struct inode *inode, unsigned long ino, void *data) |
1777 | { | |
1778 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
1779 | bool clean; | |
1780 | ||
1781 | if (inode->i_ino != ino) | |
1782 | return 0; | |
1783 | ||
1784 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) | |
1785 | return 0; | |
1786 | ||
1787 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
1788 | clean = list_empty(&F2FS_I(inode)->gdirty_list); | |
1789 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
1790 | ||
1791 | if (clean) | |
1792 | return 0; | |
1793 | ||
1794 | inode = igrab(inode); | |
1795 | if (!inode) | |
1796 | return 0; | |
1797 | return 1; | |
1798 | } | |
1799 | ||
1800 | static bool flush_dirty_inode(struct page *page) | |
1801 | { | |
1802 | struct f2fs_sb_info *sbi = F2FS_P_SB(page); | |
1803 | struct inode *inode; | |
1804 | nid_t ino = ino_of_node(page); | |
1805 | ||
1806 | inode = find_inode_nowait(sbi->sb, ino, f2fs_match_ino, NULL); | |
1807 | if (!inode) | |
1808 | return false; | |
1809 | ||
1810 | f2fs_update_inode(inode, page); | |
1811 | unlock_page(page); | |
1812 | ||
1813 | iput(inode); | |
1814 | return true; | |
1815 | } | |
1816 | ||
34c061ad SL |
1817 | int f2fs_flush_inline_data(struct f2fs_sb_info *sbi) |
1818 | { | |
1819 | pgoff_t index = 0; | |
1820 | struct pagevec pvec; | |
1821 | int nr_pages; | |
1822 | int ret = 0; | |
1823 | ||
1824 | pagevec_init(&pvec); | |
1825 | ||
1826 | while ((nr_pages = pagevec_lookup_tag(&pvec, | |
1827 | NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { | |
1828 | int i; | |
1829 | ||
1830 | for (i = 0; i < nr_pages; i++) { | |
1831 | struct page *page = pvec.pages[i]; | |
1832 | ||
1833 | if (!IS_DNODE(page)) | |
1834 | continue; | |
1835 | ||
1836 | lock_page(page); | |
1837 | ||
1838 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { | |
1839 | continue_unlock: | |
1840 | unlock_page(page); | |
1841 | continue; | |
1842 | } | |
1843 | ||
1844 | if (!PageDirty(page)) { | |
1845 | /* someone wrote it for us */ | |
1846 | goto continue_unlock; | |
1847 | } | |
1848 | ||
1849 | /* flush inline_data, if it's async context. */ | |
1850 | if (is_inline_node(page)) { | |
1851 | clear_inline_node(page); | |
1852 | unlock_page(page); | |
1853 | flush_inline_data(sbi, ino_of_node(page)); | |
1854 | continue; | |
1855 | } | |
1856 | unlock_page(page); | |
1857 | } | |
1858 | pagevec_release(&pvec); | |
1859 | cond_resched(); | |
1860 | } | |
1861 | return ret; | |
1862 | } | |
1863 | ||
4d57b86d CY |
1864 | int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, |
1865 | struct writeback_control *wbc, | |
b0af6d49 | 1866 | bool do_balance, enum iostat_type io_type) |
52681375 | 1867 | { |
028a63a6 | 1868 | pgoff_t index; |
52681375 JK |
1869 | struct pagevec pvec; |
1870 | int step = 0; | |
12bb0a8f | 1871 | int nwritten = 0; |
3f5f4959 | 1872 | int ret = 0; |
c29fd0c0 | 1873 | int nr_pages, done = 0; |
e05df3b1 | 1874 | |
86679820 | 1875 | pagevec_init(&pvec); |
e05df3b1 JK |
1876 | |
1877 | next_step: | |
1878 | index = 0; | |
028a63a6 | 1879 | |
c29fd0c0 CY |
1880 | while (!done && (nr_pages = pagevec_lookup_tag(&pvec, |
1881 | NODE_MAPPING(sbi), &index, PAGECACHE_TAG_DIRTY))) { | |
028a63a6 | 1882 | int i; |
e05df3b1 JK |
1883 | |
1884 | for (i = 0; i < nr_pages; i++) { | |
1885 | struct page *page = pvec.pages[i]; | |
d68f735b | 1886 | bool submitted = false; |
052a82d8 | 1887 | bool may_dirty = true; |
e05df3b1 | 1888 | |
c29fd0c0 CY |
1889 | /* give a priority to WB_SYNC threads */ |
1890 | if (atomic_read(&sbi->wb_sync_req[NODE]) && | |
1891 | wbc->sync_mode == WB_SYNC_NONE) { | |
1892 | done = 1; | |
1893 | break; | |
1894 | } | |
1895 | ||
e05df3b1 JK |
1896 | /* |
1897 | * flushing sequence with step: | |
1898 | * 0. indirect nodes | |
1899 | * 1. dentry dnodes | |
1900 | * 2. file dnodes | |
1901 | */ | |
1902 | if (step == 0 && IS_DNODE(page)) | |
1903 | continue; | |
1904 | if (step == 1 && (!IS_DNODE(page) || | |
1905 | is_cold_node(page))) | |
1906 | continue; | |
1907 | if (step == 2 && (!IS_DNODE(page) || | |
1908 | !is_cold_node(page))) | |
1909 | continue; | |
9a4cbc9e | 1910 | lock_node: |
4b270a8c CY |
1911 | if (wbc->sync_mode == WB_SYNC_ALL) |
1912 | lock_page(page); | |
1913 | else if (!trylock_page(page)) | |
e05df3b1 JK |
1914 | continue; |
1915 | ||
4ef51a8f | 1916 | if (unlikely(page->mapping != NODE_MAPPING(sbi))) { |
e05df3b1 JK |
1917 | continue_unlock: |
1918 | unlock_page(page); | |
1919 | continue; | |
1920 | } | |
e05df3b1 JK |
1921 | |
1922 | if (!PageDirty(page)) { | |
1923 | /* someone wrote it for us */ | |
1924 | goto continue_unlock; | |
1925 | } | |
1926 | ||
34c061ad SL |
1927 | /* flush inline_data, if it's async context. */ |
1928 | if (do_balance && is_inline_node(page)) { | |
2049d4fc JK |
1929 | clear_inline_node(page); |
1930 | unlock_page(page); | |
1931 | flush_inline_data(sbi, ino_of_node(page)); | |
9a4cbc9e | 1932 | goto lock_node; |
052a82d8 CY |
1933 | } |
1934 | ||
1935 | /* flush dirty inode */ | |
1936 | if (IS_INODE(page) && may_dirty) { | |
1937 | may_dirty = false; | |
1938 | if (flush_dirty_inode(page)) | |
1939 | goto lock_node; | |
2049d4fc JK |
1940 | } |
1941 | ||
bae0ee7a | 1942 | f2fs_wait_on_page_writeback(page, NODE, true, true); |
fa3d2bdf | 1943 | |
e05df3b1 JK |
1944 | if (!clear_page_dirty_for_io(page)) |
1945 | goto continue_unlock; | |
1946 | ||
52681375 JK |
1947 | set_fsync_mark(page, 0); |
1948 | set_dentry_mark(page, 0); | |
52746519 | 1949 | |
401db79f | 1950 | ret = __write_node_page(page, false, &submitted, |
50fa53ec | 1951 | wbc, do_balance, io_type, NULL); |
d68f735b | 1952 | if (ret) |
52746519 | 1953 | unlock_page(page); |
d68f735b | 1954 | else if (submitted) |
3f5f4959 | 1955 | nwritten++; |
e05df3b1 JK |
1956 | |
1957 | if (--wbc->nr_to_write == 0) | |
1958 | break; | |
1959 | } | |
1960 | pagevec_release(&pvec); | |
1961 | cond_resched(); | |
1962 | ||
1963 | if (wbc->nr_to_write == 0) { | |
1964 | step = 2; | |
1965 | break; | |
1966 | } | |
1967 | } | |
1968 | ||
1969 | if (step < 2) { | |
100c0655 JK |
1970 | if (!is_sbi_flag_set(sbi, SBI_CP_DISABLED) && |
1971 | wbc->sync_mode == WB_SYNC_NONE && step == 1) | |
fd8c8caf | 1972 | goto out; |
e05df3b1 JK |
1973 | step++; |
1974 | goto next_step; | |
1975 | } | |
fd8c8caf | 1976 | out: |
3f5f4959 | 1977 | if (nwritten) |
b9109b0e | 1978 | f2fs_submit_merged_write(sbi, NODE); |
db198ae0 CY |
1979 | |
1980 | if (unlikely(f2fs_cp_error(sbi))) | |
1981 | return -EIO; | |
3f5f4959 | 1982 | return ret; |
e05df3b1 JK |
1983 | } |
1984 | ||
50fa53ec CY |
1985 | int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, |
1986 | unsigned int seq_id) | |
cfe58f9d | 1987 | { |
50fa53ec CY |
1988 | struct fsync_node_entry *fn; |
1989 | struct page *page; | |
1990 | struct list_head *head = &sbi->fsync_node_list; | |
1991 | unsigned long flags; | |
1992 | unsigned int cur_seq_id = 0; | |
280db3c8 | 1993 | int ret2, ret = 0; |
cfe58f9d | 1994 | |
50fa53ec CY |
1995 | while (seq_id && cur_seq_id < seq_id) { |
1996 | spin_lock_irqsave(&sbi->fsync_node_lock, flags); | |
1997 | if (list_empty(head)) { | |
1998 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
1999 | break; | |
2000 | } | |
2001 | fn = list_first_entry(head, struct fsync_node_entry, list); | |
2002 | if (fn->seq_id > seq_id) { | |
2003 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
2004 | break; | |
2005 | } | |
2006 | cur_seq_id = fn->seq_id; | |
2007 | page = fn->page; | |
2008 | get_page(page); | |
2009 | spin_unlock_irqrestore(&sbi->fsync_node_lock, flags); | |
4ef51a8f | 2010 | |
bae0ee7a | 2011 | f2fs_wait_on_page_writeback(page, NODE, true, false); |
50fa53ec CY |
2012 | if (TestClearPageError(page)) |
2013 | ret = -EIO; | |
cfe58f9d | 2014 | |
50fa53ec | 2015 | put_page(page); |
cfe58f9d | 2016 | |
50fa53ec CY |
2017 | if (ret) |
2018 | break; | |
cfe58f9d JK |
2019 | } |
2020 | ||
280db3c8 | 2021 | ret2 = filemap_check_errors(NODE_MAPPING(sbi)); |
cfe58f9d JK |
2022 | if (!ret) |
2023 | ret = ret2; | |
50fa53ec | 2024 | |
cfe58f9d JK |
2025 | return ret; |
2026 | } | |
2027 | ||
e05df3b1 JK |
2028 | static int f2fs_write_node_pages(struct address_space *mapping, |
2029 | struct writeback_control *wbc) | |
2030 | { | |
4081363f | 2031 | struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); |
9dfa1baf | 2032 | struct blk_plug plug; |
50c8cdb3 | 2033 | long diff; |
e05df3b1 | 2034 | |
0771fcc7 CY |
2035 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
2036 | goto skip_write; | |
2037 | ||
4660f9c0 | 2038 | /* balancing f2fs's metadata in background */ |
7bcd0cfa | 2039 | f2fs_balance_fs_bg(sbi, true); |
e05df3b1 | 2040 | |
a7fdffbd | 2041 | /* collect a number of dirty node pages and write together */ |
812a9597 JK |
2042 | if (wbc->sync_mode != WB_SYNC_ALL && |
2043 | get_pages(sbi, F2FS_DIRTY_NODES) < | |
2044 | nr_pages_to_skip(sbi, NODE)) | |
d3baf95d | 2045 | goto skip_write; |
a7fdffbd | 2046 | |
c29fd0c0 CY |
2047 | if (wbc->sync_mode == WB_SYNC_ALL) |
2048 | atomic_inc(&sbi->wb_sync_req[NODE]); | |
2049 | else if (atomic_read(&sbi->wb_sync_req[NODE])) | |
2050 | goto skip_write; | |
2051 | ||
d31c7c3f YH |
2052 | trace_f2fs_writepages(mapping->host, wbc, NODE); |
2053 | ||
50c8cdb3 | 2054 | diff = nr_pages_to_write(sbi, NODE, wbc); |
9dfa1baf | 2055 | blk_start_plug(&plug); |
4d57b86d | 2056 | f2fs_sync_node_pages(sbi, wbc, true, FS_NODE_IO); |
9dfa1baf | 2057 | blk_finish_plug(&plug); |
50c8cdb3 | 2058 | wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); |
c29fd0c0 CY |
2059 | |
2060 | if (wbc->sync_mode == WB_SYNC_ALL) | |
2061 | atomic_dec(&sbi->wb_sync_req[NODE]); | |
e05df3b1 | 2062 | return 0; |
d3baf95d JK |
2063 | |
2064 | skip_write: | |
2065 | wbc->pages_skipped += get_pages(sbi, F2FS_DIRTY_NODES); | |
d31c7c3f | 2066 | trace_f2fs_writepages(mapping->host, wbc, NODE); |
d3baf95d | 2067 | return 0; |
e05df3b1 JK |
2068 | } |
2069 | ||
2070 | static int f2fs_set_node_page_dirty(struct page *page) | |
2071 | { | |
26c6b887 JK |
2072 | trace_f2fs_set_page_dirty(page, NODE); |
2073 | ||
237c0790 JK |
2074 | if (!PageUptodate(page)) |
2075 | SetPageUptodate(page); | |
54c55c4e WG |
2076 | #ifdef CONFIG_F2FS_CHECK_FS |
2077 | if (IS_INODE(page)) | |
2078 | f2fs_inode_chksum_set(F2FS_P_SB(page), page); | |
2079 | #endif | |
e05df3b1 | 2080 | if (!PageDirty(page)) { |
b87078ad | 2081 | __set_page_dirty_nobuffers(page); |
4081363f | 2082 | inc_page_count(F2FS_P_SB(page), F2FS_DIRTY_NODES); |
240a5915 | 2083 | f2fs_set_page_private(page, 0); |
9e4ded3f | 2084 | f2fs_trace_pid(page); |
e05df3b1 JK |
2085 | return 1; |
2086 | } | |
2087 | return 0; | |
2088 | } | |
2089 | ||
0a8165d7 | 2090 | /* |
e05df3b1 JK |
2091 | * Structure of the f2fs node operations |
2092 | */ | |
2093 | const struct address_space_operations f2fs_node_aops = { | |
2094 | .writepage = f2fs_write_node_page, | |
2095 | .writepages = f2fs_write_node_pages, | |
2096 | .set_page_dirty = f2fs_set_node_page_dirty, | |
487261f3 CY |
2097 | .invalidatepage = f2fs_invalidate_page, |
2098 | .releasepage = f2fs_release_page, | |
5b7a487c WG |
2099 | #ifdef CONFIG_MIGRATION |
2100 | .migratepage = f2fs_migrate_page, | |
2101 | #endif | |
e05df3b1 JK |
2102 | }; |
2103 | ||
8a7ed66a JK |
2104 | static struct free_nid *__lookup_free_nid_list(struct f2fs_nm_info *nm_i, |
2105 | nid_t n) | |
e05df3b1 | 2106 | { |
8a7ed66a | 2107 | return radix_tree_lookup(&nm_i->free_nid_root, n); |
e05df3b1 JK |
2108 | } |
2109 | ||
9a4ffdf5 | 2110 | static int __insert_free_nid(struct f2fs_sb_info *sbi, |
b815bdc7 | 2111 | struct free_nid *i) |
e05df3b1 | 2112 | { |
b8559dc2 CY |
2113 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
2114 | ||
a0761f63 FL |
2115 | int err = radix_tree_insert(&nm_i->free_nid_root, i->nid, i); |
2116 | if (err) | |
2117 | return err; | |
eb0aa4b8 | 2118 | |
b815bdc7 LS |
2119 | nm_i->nid_cnt[FREE_NID]++; |
2120 | list_add_tail(&i->list, &nm_i->free_nid_list); | |
eb0aa4b8 | 2121 | return 0; |
b8559dc2 CY |
2122 | } |
2123 | ||
9a4ffdf5 | 2124 | static void __remove_free_nid(struct f2fs_sb_info *sbi, |
a0761f63 | 2125 | struct free_nid *i, enum nid_state state) |
b8559dc2 CY |
2126 | { |
2127 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2128 | ||
9a4ffdf5 CY |
2129 | f2fs_bug_on(sbi, state != i->state); |
2130 | nm_i->nid_cnt[state]--; | |
2131 | if (state == FREE_NID) | |
2132 | list_del(&i->list); | |
a0761f63 FL |
2133 | radix_tree_delete(&nm_i->free_nid_root, i->nid); |
2134 | } | |
2135 | ||
2136 | static void __move_free_nid(struct f2fs_sb_info *sbi, struct free_nid *i, | |
2137 | enum nid_state org_state, enum nid_state dst_state) | |
b8559dc2 CY |
2138 | { |
2139 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2140 | ||
a0761f63 FL |
2141 | f2fs_bug_on(sbi, org_state != i->state); |
2142 | i->state = dst_state; | |
2143 | nm_i->nid_cnt[org_state]--; | |
2144 | nm_i->nid_cnt[dst_state]++; | |
2145 | ||
2146 | switch (dst_state) { | |
2147 | case PREALLOC_NID: | |
2148 | list_del(&i->list); | |
2149 | break; | |
2150 | case FREE_NID: | |
2151 | list_add_tail(&i->list, &nm_i->free_nid_list); | |
2152 | break; | |
2153 | default: | |
2154 | BUG_ON(1); | |
2155 | } | |
e05df3b1 JK |
2156 | } |
2157 | ||
5921aaa1 L |
2158 | static void update_free_nid_bitmap(struct f2fs_sb_info *sbi, nid_t nid, |
2159 | bool set, bool build) | |
2160 | { | |
2161 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2162 | unsigned int nat_ofs = NAT_BLOCK_OFFSET(nid); | |
2163 | unsigned int nid_ofs = nid - START_NID(nid); | |
2164 | ||
2165 | if (!test_bit_le(nat_ofs, nm_i->nat_block_bitmap)) | |
2166 | return; | |
2167 | ||
2168 | if (set) { | |
2169 | if (test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) | |
2170 | return; | |
2171 | __set_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); | |
2172 | nm_i->free_nid_count[nat_ofs]++; | |
2173 | } else { | |
2174 | if (!test_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs])) | |
2175 | return; | |
2176 | __clear_bit_le(nid_ofs, nm_i->free_nid_bitmap[nat_ofs]); | |
2177 | if (!build) | |
2178 | nm_i->free_nid_count[nat_ofs]--; | |
2179 | } | |
2180 | } | |
2181 | ||
4ac91242 | 2182 | /* return if the nid is recognized as free */ |
5921aaa1 L |
2183 | static bool add_free_nid(struct f2fs_sb_info *sbi, |
2184 | nid_t nid, bool build, bool update) | |
e05df3b1 | 2185 | { |
6fb03f3a | 2186 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
30a61ddf | 2187 | struct free_nid *i, *e; |
59bbd474 | 2188 | struct nat_entry *ne; |
30a61ddf CY |
2189 | int err = -EINVAL; |
2190 | bool ret = false; | |
9198aceb JK |
2191 | |
2192 | /* 0 nid should not be used */ | |
cfb271d4 | 2193 | if (unlikely(nid == 0)) |
4ac91242 | 2194 | return false; |
59bbd474 | 2195 | |
626bcf2b CY |
2196 | if (unlikely(f2fs_check_nid_range(sbi, nid))) |
2197 | return false; | |
2198 | ||
7bd59381 | 2199 | i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS); |
e05df3b1 | 2200 | i->nid = nid; |
9a4ffdf5 | 2201 | i->state = FREE_NID; |
e05df3b1 | 2202 | |
5921aaa1 | 2203 | radix_tree_preload(GFP_NOFS | __GFP_NOFAIL); |
769ec6e5 | 2204 | |
b8559dc2 | 2205 | spin_lock(&nm_i->nid_list_lock); |
30a61ddf CY |
2206 | |
2207 | if (build) { | |
2208 | /* | |
2209 | * Thread A Thread B | |
2210 | * - f2fs_create | |
2211 | * - f2fs_new_inode | |
4d57b86d | 2212 | * - f2fs_alloc_nid |
9a4ffdf5 | 2213 | * - __insert_nid_to_list(PREALLOC_NID) |
30a61ddf | 2214 | * - f2fs_balance_fs_bg |
4d57b86d CY |
2215 | * - f2fs_build_free_nids |
2216 | * - __f2fs_build_free_nids | |
30a61ddf CY |
2217 | * - scan_nat_page |
2218 | * - add_free_nid | |
2219 | * - __lookup_nat_cache | |
2220 | * - f2fs_add_link | |
4d57b86d CY |
2221 | * - f2fs_init_inode_metadata |
2222 | * - f2fs_new_inode_page | |
2223 | * - f2fs_new_node_page | |
30a61ddf | 2224 | * - set_node_addr |
4d57b86d | 2225 | * - f2fs_alloc_nid_done |
9a4ffdf5 CY |
2226 | * - __remove_nid_from_list(PREALLOC_NID) |
2227 | * - __insert_nid_to_list(FREE_NID) | |
30a61ddf CY |
2228 | */ |
2229 | ne = __lookup_nat_cache(nm_i, nid); | |
2230 | if (ne && (!get_nat_flag(ne, IS_CHECKPOINTED) || | |
2231 | nat_get_blkaddr(ne) != NULL_ADDR)) | |
2232 | goto err_out; | |
2233 | ||
2234 | e = __lookup_free_nid_list(nm_i, nid); | |
2235 | if (e) { | |
9a4ffdf5 | 2236 | if (e->state == FREE_NID) |
30a61ddf CY |
2237 | ret = true; |
2238 | goto err_out; | |
2239 | } | |
2240 | } | |
2241 | ret = true; | |
b815bdc7 | 2242 | err = __insert_free_nid(sbi, i); |
30a61ddf | 2243 | err_out: |
5921aaa1 L |
2244 | if (update) { |
2245 | update_free_nid_bitmap(sbi, nid, ret, build); | |
2246 | if (!build) | |
2247 | nm_i->available_nids++; | |
2248 | } | |
eb0aa4b8 JK |
2249 | spin_unlock(&nm_i->nid_list_lock); |
2250 | radix_tree_preload_end(); | |
5921aaa1 | 2251 | |
30a61ddf | 2252 | if (err) |
e05df3b1 | 2253 | kmem_cache_free(free_nid_slab, i); |
30a61ddf | 2254 | return ret; |
e05df3b1 JK |
2255 | } |
2256 | ||
b8559dc2 | 2257 | static void remove_free_nid(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 | 2258 | { |
b8559dc2 | 2259 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
e05df3b1 | 2260 | struct free_nid *i; |
cf0ee0f0 CY |
2261 | bool need_free = false; |
2262 | ||
b8559dc2 | 2263 | spin_lock(&nm_i->nid_list_lock); |
8a7ed66a | 2264 | i = __lookup_free_nid_list(nm_i, nid); |
9a4ffdf5 | 2265 | if (i && i->state == FREE_NID) { |
a0761f63 | 2266 | __remove_free_nid(sbi, i, FREE_NID); |
cf0ee0f0 | 2267 | need_free = true; |
e05df3b1 | 2268 | } |
b8559dc2 | 2269 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 CY |
2270 | |
2271 | if (need_free) | |
2272 | kmem_cache_free(free_nid_slab, i); | |
e05df3b1 JK |
2273 | } |
2274 | ||
e2374015 | 2275 | static int scan_nat_page(struct f2fs_sb_info *sbi, |
e05df3b1 JK |
2276 | struct page *nat_page, nid_t start_nid) |
2277 | { | |
6fb03f3a | 2278 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
e05df3b1 JK |
2279 | struct f2fs_nat_block *nat_blk = page_address(nat_page); |
2280 | block_t blk_addr; | |
4ac91242 | 2281 | unsigned int nat_ofs = NAT_BLOCK_OFFSET(start_nid); |
e05df3b1 JK |
2282 | int i; |
2283 | ||
23380b85 | 2284 | __set_bit_le(nat_ofs, nm_i->nat_block_bitmap); |
4ac91242 | 2285 | |
e05df3b1 JK |
2286 | i = start_nid % NAT_ENTRY_PER_BLOCK; |
2287 | ||
2288 | for (; i < NAT_ENTRY_PER_BLOCK; i++, start_nid++) { | |
cfb271d4 | 2289 | if (unlikely(start_nid >= nm_i->max_nid)) |
04431c44 | 2290 | break; |
23d38844 HL |
2291 | |
2292 | blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr); | |
e2374015 CY |
2293 | |
2294 | if (blk_addr == NEW_ADDR) | |
2295 | return -EINVAL; | |
2296 | ||
5921aaa1 L |
2297 | if (blk_addr == NULL_ADDR) { |
2298 | add_free_nid(sbi, start_nid, true, true); | |
2299 | } else { | |
2300 | spin_lock(&NM_I(sbi)->nid_list_lock); | |
2301 | update_free_nid_bitmap(sbi, start_nid, false, true); | |
2302 | spin_unlock(&NM_I(sbi)->nid_list_lock); | |
2303 | } | |
4ac91242 | 2304 | } |
e2374015 CY |
2305 | |
2306 | return 0; | |
4ac91242 CY |
2307 | } |
2308 | ||
2fbaa25f | 2309 | static void scan_curseg_cache(struct f2fs_sb_info *sbi) |
4ac91242 | 2310 | { |
4ac91242 CY |
2311 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); |
2312 | struct f2fs_journal *journal = curseg->journal; | |
2fbaa25f CY |
2313 | int i; |
2314 | ||
2315 | down_read(&curseg->journal_rwsem); | |
2316 | for (i = 0; i < nats_in_cursum(journal); i++) { | |
2317 | block_t addr; | |
2318 | nid_t nid; | |
2319 | ||
2320 | addr = le32_to_cpu(nat_in_journal(journal, i).block_addr); | |
2321 | nid = le32_to_cpu(nid_in_journal(journal, i)); | |
2322 | if (addr == NULL_ADDR) | |
5921aaa1 | 2323 | add_free_nid(sbi, nid, true, false); |
2fbaa25f CY |
2324 | else |
2325 | remove_free_nid(sbi, nid); | |
2326 | } | |
2327 | up_read(&curseg->journal_rwsem); | |
2328 | } | |
2329 | ||
2330 | static void scan_free_nid_bits(struct f2fs_sb_info *sbi) | |
2331 | { | |
2332 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
4ac91242 | 2333 | unsigned int i, idx; |
97456574 | 2334 | nid_t nid; |
4ac91242 CY |
2335 | |
2336 | down_read(&nm_i->nat_tree_lock); | |
2337 | ||
2338 | for (i = 0; i < nm_i->nat_blocks; i++) { | |
2339 | if (!test_bit_le(i, nm_i->nat_block_bitmap)) | |
2340 | continue; | |
586d1492 CY |
2341 | if (!nm_i->free_nid_count[i]) |
2342 | continue; | |
4ac91242 | 2343 | for (idx = 0; idx < NAT_ENTRY_PER_BLOCK; idx++) { |
97456574 FL |
2344 | idx = find_next_bit_le(nm_i->free_nid_bitmap[i], |
2345 | NAT_ENTRY_PER_BLOCK, idx); | |
2346 | if (idx >= NAT_ENTRY_PER_BLOCK) | |
2347 | break; | |
4ac91242 CY |
2348 | |
2349 | nid = i * NAT_ENTRY_PER_BLOCK + idx; | |
5921aaa1 | 2350 | add_free_nid(sbi, nid, true, false); |
4ac91242 | 2351 | |
9a4ffdf5 | 2352 | if (nm_i->nid_cnt[FREE_NID] >= MAX_FREE_NIDS) |
4ac91242 CY |
2353 | goto out; |
2354 | } | |
2355 | } | |
2356 | out: | |
2fbaa25f | 2357 | scan_curseg_cache(sbi); |
4ac91242 | 2358 | |
4ac91242 | 2359 | up_read(&nm_i->nat_tree_lock); |
e05df3b1 JK |
2360 | } |
2361 | ||
e2374015 | 2362 | static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi, |
4d57b86d | 2363 | bool sync, bool mount) |
e05df3b1 | 2364 | { |
e05df3b1 | 2365 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
e2374015 | 2366 | int i = 0, ret; |
55008d84 | 2367 | nid_t nid = nm_i->next_scan_nid; |
e05df3b1 | 2368 | |
e9cdd307 YH |
2369 | if (unlikely(nid >= nm_i->max_nid)) |
2370 | nid = 0; | |
2371 | ||
55008d84 | 2372 | /* Enough entries */ |
9a4ffdf5 | 2373 | if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) |
e2374015 | 2374 | return 0; |
e05df3b1 | 2375 | |
4d57b86d | 2376 | if (!sync && !f2fs_available_free_memory(sbi, FREE_NIDS)) |
e2374015 | 2377 | return 0; |
e05df3b1 | 2378 | |
4ac91242 CY |
2379 | if (!mount) { |
2380 | /* try to find free nids in free_nid_bitmap */ | |
2381 | scan_free_nid_bits(sbi); | |
2382 | ||
74986213 | 2383 | if (nm_i->nid_cnt[FREE_NID] >= NAT_ENTRY_PER_BLOCK) |
e2374015 | 2384 | return 0; |
22ad0b6a JK |
2385 | } |
2386 | ||
55008d84 | 2387 | /* readahead nat pages to be scanned */ |
4d57b86d | 2388 | f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES, |
26879fb1 | 2389 | META_NAT, true); |
e05df3b1 | 2390 | |
b873b798 | 2391 | down_read(&nm_i->nat_tree_lock); |
a5131193 | 2392 | |
e05df3b1 | 2393 | while (1) { |
66e83361 YH |
2394 | if (!test_bit_le(NAT_BLOCK_OFFSET(nid), |
2395 | nm_i->nat_block_bitmap)) { | |
2396 | struct page *page = get_current_nat_page(sbi, nid); | |
e05df3b1 | 2397 | |
edc55aaf JK |
2398 | if (IS_ERR(page)) { |
2399 | ret = PTR_ERR(page); | |
2400 | } else { | |
2401 | ret = scan_nat_page(sbi, page, nid); | |
2402 | f2fs_put_page(page, 1); | |
2403 | } | |
e2374015 CY |
2404 | |
2405 | if (ret) { | |
2406 | up_read(&nm_i->nat_tree_lock); | |
dcbb4c10 | 2407 | f2fs_err(sbi, "NAT is corrupt, run fsck to fix it"); |
edc55aaf | 2408 | return ret; |
e2374015 | 2409 | } |
66e83361 | 2410 | } |
e05df3b1 JK |
2411 | |
2412 | nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK)); | |
cfb271d4 | 2413 | if (unlikely(nid >= nm_i->max_nid)) |
e05df3b1 | 2414 | nid = 0; |
55008d84 | 2415 | |
a6d494b6 | 2416 | if (++i >= FREE_NID_PAGES) |
e05df3b1 JK |
2417 | break; |
2418 | } | |
2419 | ||
55008d84 JK |
2420 | /* go to the next free nat pages to find free nids abundantly */ |
2421 | nm_i->next_scan_nid = nid; | |
e05df3b1 JK |
2422 | |
2423 | /* find free nids from current sum_pages */ | |
2fbaa25f | 2424 | scan_curseg_cache(sbi); |
dfc08a12 | 2425 | |
b873b798 | 2426 | up_read(&nm_i->nat_tree_lock); |
2db2388f | 2427 | |
4d57b86d | 2428 | f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nm_i->next_scan_nid), |
ea1a29a0 | 2429 | nm_i->ra_nid_pages, META_NAT, false); |
e2374015 CY |
2430 | |
2431 | return 0; | |
e05df3b1 JK |
2432 | } |
2433 | ||
e2374015 | 2434 | int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount) |
2411cf5b | 2435 | { |
e2374015 CY |
2436 | int ret; |
2437 | ||
2411cf5b | 2438 | mutex_lock(&NM_I(sbi)->build_lock); |
e2374015 | 2439 | ret = __f2fs_build_free_nids(sbi, sync, mount); |
2411cf5b | 2440 | mutex_unlock(&NM_I(sbi)->build_lock); |
e2374015 CY |
2441 | |
2442 | return ret; | |
2411cf5b CY |
2443 | } |
2444 | ||
e05df3b1 JK |
2445 | /* |
2446 | * If this function returns success, caller can obtain a new nid | |
2447 | * from second parameter of this function. | |
2448 | * The returned nid could be used ino as well as nid when inode is created. | |
2449 | */ | |
4d57b86d | 2450 | bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid) |
e05df3b1 JK |
2451 | { |
2452 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2453 | struct free_nid *i = NULL; | |
e05df3b1 | 2454 | retry: |
55523519 | 2455 | if (time_to_inject(sbi, FAULT_ALLOC_NID)) { |
c45d6002 | 2456 | f2fs_show_injection_info(sbi, FAULT_ALLOC_NID); |
cb78942b | 2457 | return false; |
55523519 | 2458 | } |
7fa750a1 | 2459 | |
b8559dc2 | 2460 | spin_lock(&nm_i->nid_list_lock); |
e05df3b1 | 2461 | |
04d47e67 CY |
2462 | if (unlikely(nm_i->available_nids == 0)) { |
2463 | spin_unlock(&nm_i->nid_list_lock); | |
2464 | return false; | |
2465 | } | |
e05df3b1 | 2466 | |
4d57b86d CY |
2467 | /* We should not use stale free nids created by f2fs_build_free_nids */ |
2468 | if (nm_i->nid_cnt[FREE_NID] && !on_f2fs_build_free_nids(nm_i)) { | |
9a4ffdf5 CY |
2469 | f2fs_bug_on(sbi, list_empty(&nm_i->free_nid_list)); |
2470 | i = list_first_entry(&nm_i->free_nid_list, | |
b8559dc2 | 2471 | struct free_nid, list); |
55008d84 | 2472 | *nid = i->nid; |
b8559dc2 | 2473 | |
a0761f63 | 2474 | __move_free_nid(sbi, i, FREE_NID, PREALLOC_NID); |
04d47e67 | 2475 | nm_i->available_nids--; |
4ac91242 | 2476 | |
346fe752 | 2477 | update_free_nid_bitmap(sbi, *nid, false, false); |
4ac91242 | 2478 | |
b8559dc2 | 2479 | spin_unlock(&nm_i->nid_list_lock); |
55008d84 JK |
2480 | return true; |
2481 | } | |
b8559dc2 | 2482 | spin_unlock(&nm_i->nid_list_lock); |
55008d84 JK |
2483 | |
2484 | /* Let's scan nat pages and its caches to get free nids */ | |
f84262b0 JK |
2485 | if (!f2fs_build_free_nids(sbi, true, false)) |
2486 | goto retry; | |
2487 | return false; | |
e05df3b1 JK |
2488 | } |
2489 | ||
0a8165d7 | 2490 | /* |
4d57b86d | 2491 | * f2fs_alloc_nid() should be called prior to this function. |
e05df3b1 | 2492 | */ |
4d57b86d | 2493 | void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 JK |
2494 | { |
2495 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2496 | struct free_nid *i; | |
2497 | ||
b8559dc2 | 2498 | spin_lock(&nm_i->nid_list_lock); |
8a7ed66a | 2499 | i = __lookup_free_nid_list(nm_i, nid); |
b8559dc2 | 2500 | f2fs_bug_on(sbi, !i); |
a0761f63 | 2501 | __remove_free_nid(sbi, i, PREALLOC_NID); |
b8559dc2 | 2502 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 CY |
2503 | |
2504 | kmem_cache_free(free_nid_slab, i); | |
e05df3b1 JK |
2505 | } |
2506 | ||
0a8165d7 | 2507 | /* |
4d57b86d | 2508 | * f2fs_alloc_nid() should be called prior to this function. |
e05df3b1 | 2509 | */ |
4d57b86d | 2510 | void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid) |
e05df3b1 | 2511 | { |
49952fa1 JK |
2512 | struct f2fs_nm_info *nm_i = NM_I(sbi); |
2513 | struct free_nid *i; | |
cf0ee0f0 | 2514 | bool need_free = false; |
49952fa1 | 2515 | |
65985d93 JK |
2516 | if (!nid) |
2517 | return; | |
2518 | ||
b8559dc2 | 2519 | spin_lock(&nm_i->nid_list_lock); |
8a7ed66a | 2520 | i = __lookup_free_nid_list(nm_i, nid); |
b8559dc2 CY |
2521 | f2fs_bug_on(sbi, !i); |
2522 | ||
4d57b86d | 2523 | if (!f2fs_available_free_memory(sbi, FREE_NIDS)) { |
a0761f63 | 2524 | __remove_free_nid(sbi, i, PREALLOC_NID); |
cf0ee0f0 | 2525 | need_free = true; |
95630cba | 2526 | } else { |
a0761f63 | 2527 | __move_free_nid(sbi, i, PREALLOC_NID, FREE_NID); |
95630cba | 2528 | } |
04d47e67 CY |
2529 | |
2530 | nm_i->available_nids++; | |
2531 | ||
346fe752 | 2532 | update_free_nid_bitmap(sbi, nid, true, false); |
4ac91242 | 2533 | |
b8559dc2 | 2534 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 CY |
2535 | |
2536 | if (need_free) | |
2537 | kmem_cache_free(free_nid_slab, i); | |
e05df3b1 JK |
2538 | } |
2539 | ||
4d57b86d | 2540 | int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink) |
31696580 CY |
2541 | { |
2542 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
31696580 CY |
2543 | int nr = nr_shrink; |
2544 | ||
9a4ffdf5 | 2545 | if (nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) |
ad4edb83 JK |
2546 | return 0; |
2547 | ||
31696580 CY |
2548 | if (!mutex_trylock(&nm_i->build_lock)) |
2549 | return 0; | |
2550 | ||
042be373 CY |
2551 | while (nr_shrink && nm_i->nid_cnt[FREE_NID] > MAX_FREE_NIDS) { |
2552 | struct free_nid *i, *next; | |
2553 | unsigned int batch = SHRINK_NID_BATCH_SIZE; | |
b8559dc2 | 2554 | |
042be373 CY |
2555 | spin_lock(&nm_i->nid_list_lock); |
2556 | list_for_each_entry_safe(i, next, &nm_i->free_nid_list, list) { | |
2557 | if (!nr_shrink || !batch || | |
2558 | nm_i->nid_cnt[FREE_NID] <= MAX_FREE_NIDS) | |
2559 | break; | |
2560 | __remove_free_nid(sbi, i, FREE_NID); | |
2561 | kmem_cache_free(free_nid_slab, i); | |
2562 | nr_shrink--; | |
2563 | batch--; | |
2564 | } | |
2565 | spin_unlock(&nm_i->nid_list_lock); | |
31696580 | 2566 | } |
042be373 | 2567 | |
31696580 CY |
2568 | mutex_unlock(&nm_i->build_lock); |
2569 | ||
2570 | return nr - nr_shrink; | |
2571 | } | |
2572 | ||
4d57b86d | 2573 | void f2fs_recover_inline_xattr(struct inode *inode, struct page *page) |
28cdce04 | 2574 | { |
28cdce04 CY |
2575 | void *src_addr, *dst_addr; |
2576 | size_t inline_size; | |
2577 | struct page *ipage; | |
2578 | struct f2fs_inode *ri; | |
2579 | ||
4d57b86d | 2580 | ipage = f2fs_get_node_page(F2FS_I_SB(inode), inode->i_ino); |
9850cf4a | 2581 | f2fs_bug_on(F2FS_I_SB(inode), IS_ERR(ipage)); |
28cdce04 | 2582 | |
e3b4d43f | 2583 | ri = F2FS_INODE(page); |
1eca05aa YH |
2584 | if (ri->i_inline & F2FS_INLINE_XATTR) { |
2585 | set_inode_flag(inode, FI_INLINE_XATTR); | |
2586 | } else { | |
91942321 | 2587 | clear_inode_flag(inode, FI_INLINE_XATTR); |
e3b4d43f JK |
2588 | goto update_inode; |
2589 | } | |
2590 | ||
6afc662e CY |
2591 | dst_addr = inline_xattr_addr(inode, ipage); |
2592 | src_addr = inline_xattr_addr(inode, page); | |
28cdce04 CY |
2593 | inline_size = inline_xattr_size(inode); |
2594 | ||
bae0ee7a | 2595 | f2fs_wait_on_page_writeback(ipage, NODE, true, true); |
28cdce04 | 2596 | memcpy(dst_addr, src_addr, inline_size); |
e3b4d43f | 2597 | update_inode: |
4d57b86d | 2598 | f2fs_update_inode(inode, ipage); |
28cdce04 CY |
2599 | f2fs_put_page(ipage, 1); |
2600 | } | |
2601 | ||
4d57b86d | 2602 | int f2fs_recover_xattr_data(struct inode *inode, struct page *page) |
abb2366c | 2603 | { |
4081363f | 2604 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
abb2366c | 2605 | nid_t prev_xnid = F2FS_I(inode)->i_xattr_nid; |
87905682 YH |
2606 | nid_t new_xnid; |
2607 | struct dnode_of_data dn; | |
abb2366c | 2608 | struct node_info ni; |
d260081c | 2609 | struct page *xpage; |
7735730d | 2610 | int err; |
abb2366c | 2611 | |
abb2366c JK |
2612 | if (!prev_xnid) |
2613 | goto recover_xnid; | |
2614 | ||
d260081c | 2615 | /* 1: invalidate the previous xattr nid */ |
7735730d CY |
2616 | err = f2fs_get_node_info(sbi, prev_xnid, &ni); |
2617 | if (err) | |
2618 | return err; | |
2619 | ||
4d57b86d | 2620 | f2fs_invalidate_blocks(sbi, ni.blk_addr); |
000519f2 | 2621 | dec_valid_node_count(sbi, inode, false); |
479f40c4 | 2622 | set_node_addr(sbi, &ni, NULL_ADDR, false); |
abb2366c JK |
2623 | |
2624 | recover_xnid: | |
d260081c | 2625 | /* 2: update xattr nid in inode */ |
4d57b86d | 2626 | if (!f2fs_alloc_nid(sbi, &new_xnid)) |
87905682 YH |
2627 | return -ENOSPC; |
2628 | ||
2629 | set_new_dnode(&dn, inode, NULL, NULL, new_xnid); | |
4d57b86d | 2630 | xpage = f2fs_new_node_page(&dn, XATTR_NODE_OFFSET); |
87905682 | 2631 | if (IS_ERR(xpage)) { |
4d57b86d | 2632 | f2fs_alloc_nid_failed(sbi, new_xnid); |
87905682 YH |
2633 | return PTR_ERR(xpage); |
2634 | } | |
2635 | ||
4d57b86d CY |
2636 | f2fs_alloc_nid_done(sbi, new_xnid); |
2637 | f2fs_update_inode_page(inode); | |
d260081c CY |
2638 | |
2639 | /* 3: update and set xattr node page dirty */ | |
87905682 | 2640 | memcpy(F2FS_NODE(xpage), F2FS_NODE(page), VALID_XATTR_BLOCK_SIZE); |
abb2366c | 2641 | |
d260081c CY |
2642 | set_page_dirty(xpage); |
2643 | f2fs_put_page(xpage, 1); | |
abb2366c | 2644 | |
d260081c | 2645 | return 0; |
abb2366c JK |
2646 | } |
2647 | ||
4d57b86d | 2648 | int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page) |
e05df3b1 | 2649 | { |
58bfaf44 | 2650 | struct f2fs_inode *src, *dst; |
e05df3b1 JK |
2651 | nid_t ino = ino_of_node(page); |
2652 | struct node_info old_ni, new_ni; | |
2653 | struct page *ipage; | |
7735730d | 2654 | int err; |
e05df3b1 | 2655 | |
7735730d CY |
2656 | err = f2fs_get_node_info(sbi, ino, &old_ni); |
2657 | if (err) | |
2658 | return err; | |
e8271fa3 JK |
2659 | |
2660 | if (unlikely(old_ni.blk_addr != NULL_ADDR)) | |
2661 | return -EINVAL; | |
e8ea9b3d | 2662 | retry: |
300e129c | 2663 | ipage = f2fs_grab_cache_page(NODE_MAPPING(sbi), ino, false); |
e8ea9b3d | 2664 | if (!ipage) { |
5df7731f | 2665 | congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT); |
e8ea9b3d JK |
2666 | goto retry; |
2667 | } | |
e05df3b1 | 2668 | |
e1c42045 | 2669 | /* Should not use this inode from free nid list */ |
b8559dc2 | 2670 | remove_free_nid(sbi, ino); |
e05df3b1 | 2671 | |
237c0790 JK |
2672 | if (!PageUptodate(ipage)) |
2673 | SetPageUptodate(ipage); | |
e05df3b1 | 2674 | fill_node_footer(ipage, ino, ino, 0, true); |
ef2a0071 | 2675 | set_cold_node(ipage, false); |
e05df3b1 | 2676 | |
58bfaf44 JK |
2677 | src = F2FS_INODE(page); |
2678 | dst = F2FS_INODE(ipage); | |
e05df3b1 | 2679 | |
58bfaf44 JK |
2680 | memcpy(dst, src, (unsigned long)&src->i_ext - (unsigned long)src); |
2681 | dst->i_size = 0; | |
2682 | dst->i_blocks = cpu_to_le64(1); | |
2683 | dst->i_links = cpu_to_le32(1); | |
2684 | dst->i_xattr_nid = 0; | |
7a2af766 | 2685 | dst->i_inline = src->i_inline & (F2FS_INLINE_XATTR | F2FS_EXTRA_ATTR); |
5c57132e | 2686 | if (dst->i_inline & F2FS_EXTRA_ATTR) { |
7a2af766 | 2687 | dst->i_extra_isize = src->i_extra_isize; |
6afc662e | 2688 | |
7beb01f7 | 2689 | if (f2fs_sb_has_flexible_inline_xattr(sbi) && |
6afc662e CY |
2690 | F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), |
2691 | i_inline_xattr_size)) | |
2692 | dst->i_inline_xattr_size = src->i_inline_xattr_size; | |
2693 | ||
7beb01f7 | 2694 | if (f2fs_sb_has_project_quota(sbi) && |
5c57132e CY |
2695 | F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), |
2696 | i_projid)) | |
2697 | dst->i_projid = src->i_projid; | |
5cd1f387 | 2698 | |
7beb01f7 | 2699 | if (f2fs_sb_has_inode_crtime(sbi) && |
5cd1f387 CY |
2700 | F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize), |
2701 | i_crtime_nsec)) { | |
2702 | dst->i_crtime = src->i_crtime; | |
2703 | dst->i_crtime_nsec = src->i_crtime_nsec; | |
2704 | } | |
5c57132e | 2705 | } |
e05df3b1 JK |
2706 | |
2707 | new_ni = old_ni; | |
2708 | new_ni.ino = ino; | |
2709 | ||
0abd675e | 2710 | if (unlikely(inc_valid_node_count(sbi, NULL, true))) |
65e5cd0a | 2711 | WARN_ON(1); |
479f40c4 | 2712 | set_node_addr(sbi, &new_ni, NEW_ADDR, false); |
e05df3b1 | 2713 | inc_valid_inode_count(sbi); |
617deb8c | 2714 | set_page_dirty(ipage); |
e05df3b1 JK |
2715 | f2fs_put_page(ipage, 1); |
2716 | return 0; | |
2717 | } | |
2718 | ||
7735730d | 2719 | int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, |
e05df3b1 JK |
2720 | unsigned int segno, struct f2fs_summary_block *sum) |
2721 | { | |
2722 | struct f2fs_node *rn; | |
2723 | struct f2fs_summary *sum_entry; | |
e05df3b1 | 2724 | block_t addr; |
9ecf4b80 | 2725 | int i, idx, last_offset, nrpages; |
e05df3b1 JK |
2726 | |
2727 | /* scan the node segment */ | |
2728 | last_offset = sbi->blocks_per_seg; | |
2729 | addr = START_BLOCK(sbi, segno); | |
2730 | sum_entry = &sum->entries[0]; | |
2731 | ||
9ecf4b80 | 2732 | for (i = 0; i < last_offset; i += nrpages, addr += nrpages) { |
664ba972 | 2733 | nrpages = min(last_offset - i, BIO_MAX_PAGES); |
393ff91f | 2734 | |
e1c42045 | 2735 | /* readahead node pages */ |
4d57b86d | 2736 | f2fs_ra_meta_pages(sbi, addr, nrpages, META_POR, true); |
e05df3b1 | 2737 | |
9ecf4b80 | 2738 | for (idx = addr; idx < addr + nrpages; idx++) { |
4d57b86d | 2739 | struct page *page = f2fs_get_tmp_page(sbi, idx); |
9af0ff1c | 2740 | |
7735730d CY |
2741 | if (IS_ERR(page)) |
2742 | return PTR_ERR(page); | |
2743 | ||
9ecf4b80 CY |
2744 | rn = F2FS_NODE(page); |
2745 | sum_entry->nid = rn->footer.nid; | |
2746 | sum_entry->version = 0; | |
2747 | sum_entry->ofs_in_node = 0; | |
2748 | sum_entry++; | |
2749 | f2fs_put_page(page, 1); | |
9af0ff1c | 2750 | } |
bac4eef6 | 2751 | |
9ecf4b80 | 2752 | invalidate_mapping_pages(META_MAPPING(sbi), addr, |
bac4eef6 | 2753 | addr + nrpages); |
e05df3b1 | 2754 | } |
7735730d | 2755 | return 0; |
e05df3b1 JK |
2756 | } |
2757 | ||
aec71382 | 2758 | static void remove_nats_in_journal(struct f2fs_sb_info *sbi) |
e05df3b1 JK |
2759 | { |
2760 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2761 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 2762 | struct f2fs_journal *journal = curseg->journal; |
e05df3b1 JK |
2763 | int i; |
2764 | ||
b7ad7512 | 2765 | down_write(&curseg->journal_rwsem); |
dfc08a12 | 2766 | for (i = 0; i < nats_in_cursum(journal); i++) { |
e05df3b1 JK |
2767 | struct nat_entry *ne; |
2768 | struct f2fs_nat_entry raw_ne; | |
dfc08a12 | 2769 | nid_t nid = le32_to_cpu(nid_in_journal(journal, i)); |
e05df3b1 | 2770 | |
dfc08a12 | 2771 | raw_ne = nat_in_journal(journal, i); |
9be32d72 | 2772 | |
e05df3b1 | 2773 | ne = __lookup_nat_cache(nm_i, nid); |
e05df3b1 | 2774 | if (!ne) { |
12f9ef37 YH |
2775 | ne = __alloc_nat_entry(nid, true); |
2776 | __init_nat_entry(nm_i, ne, &raw_ne, true); | |
e05df3b1 | 2777 | } |
04d47e67 CY |
2778 | |
2779 | /* | |
2780 | * if a free nat in journal has not been used after last | |
2781 | * checkpoint, we should remove it from available nids, | |
2782 | * since later we will add it again. | |
2783 | */ | |
2784 | if (!get_nat_flag(ne, IS_DIRTY) && | |
2785 | le32_to_cpu(raw_ne.block_addr) == NULL_ADDR) { | |
2786 | spin_lock(&nm_i->nid_list_lock); | |
2787 | nm_i->available_nids--; | |
2788 | spin_unlock(&nm_i->nid_list_lock); | |
2789 | } | |
2790 | ||
e05df3b1 | 2791 | __set_nat_cache_dirty(nm_i, ne); |
e05df3b1 | 2792 | } |
dfc08a12 | 2793 | update_nats_in_cursum(journal, -i); |
b7ad7512 | 2794 | up_write(&curseg->journal_rwsem); |
e05df3b1 JK |
2795 | } |
2796 | ||
309cc2b6 JK |
2797 | static void __adjust_nat_entry_set(struct nat_entry_set *nes, |
2798 | struct list_head *head, int max) | |
e05df3b1 | 2799 | { |
309cc2b6 | 2800 | struct nat_entry_set *cur; |
e05df3b1 | 2801 | |
309cc2b6 JK |
2802 | if (nes->entry_cnt >= max) |
2803 | goto add_out; | |
e05df3b1 | 2804 | |
309cc2b6 JK |
2805 | list_for_each_entry(cur, head, set_list) { |
2806 | if (cur->entry_cnt >= nes->entry_cnt) { | |
2807 | list_add(&nes->set_list, cur->set_list.prev); | |
2808 | return; | |
2809 | } | |
aec71382 | 2810 | } |
309cc2b6 JK |
2811 | add_out: |
2812 | list_add_tail(&nes->set_list, head); | |
2813 | } | |
e05df3b1 | 2814 | |
9f7e4a2c | 2815 | static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid, |
22ad0b6a JK |
2816 | struct page *page) |
2817 | { | |
2818 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2819 | unsigned int nat_index = start_nid / NAT_ENTRY_PER_BLOCK; | |
2820 | struct f2fs_nat_block *nat_blk = page_address(page); | |
2821 | int valid = 0; | |
37a0ab2a | 2822 | int i = 0; |
22ad0b6a JK |
2823 | |
2824 | if (!enabled_nat_bits(sbi, NULL)) | |
2825 | return; | |
2826 | ||
37a0ab2a FL |
2827 | if (nat_index == 0) { |
2828 | valid = 1; | |
2829 | i = 1; | |
2830 | } | |
2831 | for (; i < NAT_ENTRY_PER_BLOCK; i++) { | |
36af5f40 | 2832 | if (le32_to_cpu(nat_blk->entries[i].block_addr) != NULL_ADDR) |
22ad0b6a JK |
2833 | valid++; |
2834 | } | |
2835 | if (valid == 0) { | |
23380b85 JK |
2836 | __set_bit_le(nat_index, nm_i->empty_nat_bits); |
2837 | __clear_bit_le(nat_index, nm_i->full_nat_bits); | |
22ad0b6a JK |
2838 | return; |
2839 | } | |
2840 | ||
23380b85 | 2841 | __clear_bit_le(nat_index, nm_i->empty_nat_bits); |
22ad0b6a | 2842 | if (valid == NAT_ENTRY_PER_BLOCK) |
23380b85 | 2843 | __set_bit_le(nat_index, nm_i->full_nat_bits); |
22ad0b6a | 2844 | else |
23380b85 | 2845 | __clear_bit_le(nat_index, nm_i->full_nat_bits); |
22ad0b6a JK |
2846 | } |
2847 | ||
edc55aaf | 2848 | static int __flush_nat_entry_set(struct f2fs_sb_info *sbi, |
22ad0b6a | 2849 | struct nat_entry_set *set, struct cp_control *cpc) |
309cc2b6 JK |
2850 | { |
2851 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 2852 | struct f2fs_journal *journal = curseg->journal; |
309cc2b6 JK |
2853 | nid_t start_nid = set->set * NAT_ENTRY_PER_BLOCK; |
2854 | bool to_journal = true; | |
2855 | struct f2fs_nat_block *nat_blk; | |
2856 | struct nat_entry *ne, *cur; | |
2857 | struct page *page = NULL; | |
e05df3b1 | 2858 | |
aec71382 CY |
2859 | /* |
2860 | * there are two steps to flush nat entries: | |
2861 | * #1, flush nat entries to journal in current hot data summary block. | |
2862 | * #2, flush nat entries to nat page. | |
2863 | */ | |
22ad0b6a JK |
2864 | if (enabled_nat_bits(sbi, cpc) || |
2865 | !__has_cursum_space(journal, set->entry_cnt, NAT_JOURNAL)) | |
309cc2b6 JK |
2866 | to_journal = false; |
2867 | ||
2868 | if (to_journal) { | |
b7ad7512 | 2869 | down_write(&curseg->journal_rwsem); |
309cc2b6 JK |
2870 | } else { |
2871 | page = get_next_nat_page(sbi, start_nid); | |
edc55aaf JK |
2872 | if (IS_ERR(page)) |
2873 | return PTR_ERR(page); | |
2874 | ||
309cc2b6 JK |
2875 | nat_blk = page_address(page); |
2876 | f2fs_bug_on(sbi, !nat_blk); | |
2877 | } | |
aec71382 | 2878 | |
309cc2b6 JK |
2879 | /* flush dirty nats in nat entry set */ |
2880 | list_for_each_entry_safe(ne, cur, &set->entry_list, list) { | |
2881 | struct f2fs_nat_entry *raw_ne; | |
2882 | nid_t nid = nat_get_nid(ne); | |
2883 | int offset; | |
2884 | ||
febeca6d | 2885 | f2fs_bug_on(sbi, nat_get_blkaddr(ne) == NEW_ADDR); |
aec71382 CY |
2886 | |
2887 | if (to_journal) { | |
4d57b86d | 2888 | offset = f2fs_lookup_journal_in_cursum(journal, |
309cc2b6 JK |
2889 | NAT_JOURNAL, nid, 1); |
2890 | f2fs_bug_on(sbi, offset < 0); | |
dfc08a12 CY |
2891 | raw_ne = &nat_in_journal(journal, offset); |
2892 | nid_in_journal(journal, offset) = cpu_to_le32(nid); | |
aec71382 | 2893 | } else { |
309cc2b6 | 2894 | raw_ne = &nat_blk->entries[nid - start_nid]; |
e05df3b1 | 2895 | } |
309cc2b6 | 2896 | raw_nat_from_node_info(raw_ne, &ne->ni); |
309cc2b6 | 2897 | nat_reset_flag(ne); |
0b28b71e | 2898 | __clear_nat_cache_dirty(NM_I(sbi), set, ne); |
04d47e67 | 2899 | if (nat_get_blkaddr(ne) == NULL_ADDR) { |
5921aaa1 | 2900 | add_free_nid(sbi, nid, false, true); |
4ac91242 CY |
2901 | } else { |
2902 | spin_lock(&NM_I(sbi)->nid_list_lock); | |
346fe752 | 2903 | update_free_nid_bitmap(sbi, nid, false, false); |
04d47e67 CY |
2904 | spin_unlock(&NM_I(sbi)->nid_list_lock); |
2905 | } | |
309cc2b6 | 2906 | } |
e05df3b1 | 2907 | |
22ad0b6a | 2908 | if (to_journal) { |
b7ad7512 | 2909 | up_write(&curseg->journal_rwsem); |
22ad0b6a JK |
2910 | } else { |
2911 | __update_nat_bits(sbi, start_nid, page); | |
309cc2b6 | 2912 | f2fs_put_page(page, 1); |
22ad0b6a | 2913 | } |
aec71382 | 2914 | |
59c9081b YH |
2915 | /* Allow dirty nats by node block allocation in write_begin */ |
2916 | if (!set->entry_cnt) { | |
2917 | radix_tree_delete(&NM_I(sbi)->nat_set_root, set->set); | |
2918 | kmem_cache_free(nat_entry_set_slab, set); | |
2919 | } | |
edc55aaf | 2920 | return 0; |
309cc2b6 | 2921 | } |
aec71382 | 2922 | |
309cc2b6 JK |
2923 | /* |
2924 | * This function is called during the checkpointing process. | |
2925 | */ | |
edc55aaf | 2926 | int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc) |
309cc2b6 JK |
2927 | { |
2928 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2929 | struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA); | |
b7ad7512 | 2930 | struct f2fs_journal *journal = curseg->journal; |
7aed0d45 | 2931 | struct nat_entry_set *setvec[SETVEC_SIZE]; |
309cc2b6 JK |
2932 | struct nat_entry_set *set, *tmp; |
2933 | unsigned int found; | |
2934 | nid_t set_idx = 0; | |
2935 | LIST_HEAD(sets); | |
edc55aaf | 2936 | int err = 0; |
309cc2b6 | 2937 | |
7f2ecdd8 JK |
2938 | /* during unmount, let's flush nat_bits before checking dirty_nat_cnt */ |
2939 | if (enabled_nat_bits(sbi, cpc)) { | |
2940 | down_write(&nm_i->nat_tree_lock); | |
2941 | remove_nats_in_journal(sbi); | |
2942 | up_write(&nm_i->nat_tree_lock); | |
2943 | } | |
2944 | ||
20d047c8 | 2945 | if (!nm_i->dirty_nat_cnt) |
edc55aaf | 2946 | return 0; |
a5131193 | 2947 | |
b873b798 | 2948 | down_write(&nm_i->nat_tree_lock); |
a5131193 | 2949 | |
309cc2b6 JK |
2950 | /* |
2951 | * if there are no enough space in journal to store dirty nat | |
2952 | * entries, remove all entries from journal and merge them | |
2953 | * into nat entry set. | |
2954 | */ | |
900f7362 | 2955 | if (enabled_nat_bits(sbi, cpc) || |
22ad0b6a | 2956 | !__has_cursum_space(journal, nm_i->dirty_nat_cnt, NAT_JOURNAL)) |
309cc2b6 JK |
2957 | remove_nats_in_journal(sbi); |
2958 | ||
309cc2b6 | 2959 | while ((found = __gang_lookup_nat_set(nm_i, |
7aed0d45 | 2960 | set_idx, SETVEC_SIZE, setvec))) { |
309cc2b6 JK |
2961 | unsigned idx; |
2962 | set_idx = setvec[found - 1]->set + 1; | |
2963 | for (idx = 0; idx < found; idx++) | |
2964 | __adjust_nat_entry_set(setvec[idx], &sets, | |
dfc08a12 | 2965 | MAX_NAT_JENTRIES(journal)); |
e05df3b1 | 2966 | } |
aec71382 | 2967 | |
309cc2b6 | 2968 | /* flush dirty nats in nat entry set */ |
edc55aaf JK |
2969 | list_for_each_entry_safe(set, tmp, &sets, set_list) { |
2970 | err = __flush_nat_entry_set(sbi, set, cpc); | |
2971 | if (err) | |
2972 | break; | |
2973 | } | |
309cc2b6 | 2974 | |
b873b798 | 2975 | up_write(&nm_i->nat_tree_lock); |
59c9081b | 2976 | /* Allow dirty nats by node block allocation in write_begin */ |
edc55aaf JK |
2977 | |
2978 | return err; | |
e05df3b1 JK |
2979 | } |
2980 | ||
22ad0b6a JK |
2981 | static int __get_nat_bitmaps(struct f2fs_sb_info *sbi) |
2982 | { | |
2983 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2984 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
2985 | unsigned int nat_bits_bytes = nm_i->nat_blocks / BITS_PER_BYTE; | |
2986 | unsigned int i; | |
2987 | __u64 cp_ver = cur_cp_version(ckpt); | |
22ad0b6a JK |
2988 | block_t nat_bits_addr; |
2989 | ||
2990 | if (!enabled_nat_bits(sbi, NULL)) | |
2991 | return 0; | |
2992 | ||
df033caf | 2993 | nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8); |
0b6d4ca0 | 2994 | nm_i->nat_bits = f2fs_kvzalloc(sbi, |
acbf054d | 2995 | nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL); |
22ad0b6a JK |
2996 | if (!nm_i->nat_bits) |
2997 | return -ENOMEM; | |
2998 | ||
2999 | nat_bits_addr = __start_cp_addr(sbi) + sbi->blocks_per_seg - | |
3000 | nm_i->nat_bits_blocks; | |
3001 | for (i = 0; i < nm_i->nat_bits_blocks; i++) { | |
7735730d CY |
3002 | struct page *page; |
3003 | ||
3004 | page = f2fs_get_meta_page(sbi, nat_bits_addr++); | |
3b30eb19 | 3005 | if (IS_ERR(page)) |
7735730d | 3006 | return PTR_ERR(page); |
22ad0b6a JK |
3007 | |
3008 | memcpy(nm_i->nat_bits + (i << F2FS_BLKSIZE_BITS), | |
3009 | page_address(page), F2FS_BLKSIZE); | |
3010 | f2fs_put_page(page, 1); | |
3011 | } | |
3012 | ||
ced2c7ea | 3013 | cp_ver |= (cur_cp_crc(ckpt) << 32); |
22ad0b6a JK |
3014 | if (cpu_to_le64(cp_ver) != *(__le64 *)nm_i->nat_bits) { |
3015 | disable_nat_bits(sbi, true); | |
3016 | return 0; | |
3017 | } | |
3018 | ||
3019 | nm_i->full_nat_bits = nm_i->nat_bits + 8; | |
3020 | nm_i->empty_nat_bits = nm_i->full_nat_bits + nat_bits_bytes; | |
3021 | ||
dcbb4c10 | 3022 | f2fs_notice(sbi, "Found nat_bits in checkpoint"); |
22ad0b6a JK |
3023 | return 0; |
3024 | } | |
3025 | ||
bd80a4b9 | 3026 | static inline void load_free_nid_bitmap(struct f2fs_sb_info *sbi) |
7041d5d2 CY |
3027 | { |
3028 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3029 | unsigned int i = 0; | |
3030 | nid_t nid, last_nid; | |
3031 | ||
3032 | if (!enabled_nat_bits(sbi, NULL)) | |
3033 | return; | |
3034 | ||
3035 | for (i = 0; i < nm_i->nat_blocks; i++) { | |
3036 | i = find_next_bit_le(nm_i->empty_nat_bits, nm_i->nat_blocks, i); | |
3037 | if (i >= nm_i->nat_blocks) | |
3038 | break; | |
3039 | ||
3040 | __set_bit_le(i, nm_i->nat_block_bitmap); | |
3041 | ||
3042 | nid = i * NAT_ENTRY_PER_BLOCK; | |
f6986ede | 3043 | last_nid = nid + NAT_ENTRY_PER_BLOCK; |
7041d5d2 | 3044 | |
346fe752 | 3045 | spin_lock(&NM_I(sbi)->nid_list_lock); |
7041d5d2 | 3046 | for (; nid < last_nid; nid++) |
346fe752 CY |
3047 | update_free_nid_bitmap(sbi, nid, true, true); |
3048 | spin_unlock(&NM_I(sbi)->nid_list_lock); | |
7041d5d2 CY |
3049 | } |
3050 | ||
3051 | for (i = 0; i < nm_i->nat_blocks; i++) { | |
3052 | i = find_next_bit_le(nm_i->full_nat_bits, nm_i->nat_blocks, i); | |
3053 | if (i >= nm_i->nat_blocks) | |
3054 | break; | |
3055 | ||
3056 | __set_bit_le(i, nm_i->nat_block_bitmap); | |
3057 | } | |
3058 | } | |
3059 | ||
e05df3b1 JK |
3060 | static int init_node_manager(struct f2fs_sb_info *sbi) |
3061 | { | |
3062 | struct f2fs_super_block *sb_raw = F2FS_RAW_SUPER(sbi); | |
3063 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3064 | unsigned char *version_bitmap; | |
22ad0b6a JK |
3065 | unsigned int nat_segs; |
3066 | int err; | |
e05df3b1 JK |
3067 | |
3068 | nm_i->nat_blkaddr = le32_to_cpu(sb_raw->nat_blkaddr); | |
3069 | ||
3070 | /* segment_count_nat includes pair segment so divide to 2. */ | |
3071 | nat_segs = le32_to_cpu(sb_raw->segment_count_nat) >> 1; | |
22ad0b6a JK |
3072 | nm_i->nat_blocks = nat_segs << le32_to_cpu(sb_raw->log_blocks_per_seg); |
3073 | nm_i->max_nid = NAT_ENTRY_PER_BLOCK * nm_i->nat_blocks; | |
7ee0eeab | 3074 | |
b63da15e | 3075 | /* not used nids: 0, node, meta, (and root counted as valid node) */ |
04d47e67 | 3076 | nm_i->available_nids = nm_i->max_nid - sbi->total_valid_node_count - |
27cae0bc | 3077 | F2FS_RESERVED_NODE_NUM; |
9a4ffdf5 CY |
3078 | nm_i->nid_cnt[FREE_NID] = 0; |
3079 | nm_i->nid_cnt[PREALLOC_NID] = 0; | |
e05df3b1 | 3080 | nm_i->nat_cnt = 0; |
cdfc41c1 | 3081 | nm_i->ram_thresh = DEF_RAM_THRESHOLD; |
ea1a29a0 | 3082 | nm_i->ra_nid_pages = DEF_RA_NID_PAGES; |
2304cb0c | 3083 | nm_i->dirty_nats_ratio = DEF_DIRTY_NAT_RATIO_THRESHOLD; |
e05df3b1 | 3084 | |
8a7ed66a | 3085 | INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC); |
9a4ffdf5 | 3086 | INIT_LIST_HEAD(&nm_i->free_nid_list); |
769ec6e5 JK |
3087 | INIT_RADIX_TREE(&nm_i->nat_root, GFP_NOIO); |
3088 | INIT_RADIX_TREE(&nm_i->nat_set_root, GFP_NOIO); | |
e05df3b1 | 3089 | INIT_LIST_HEAD(&nm_i->nat_entries); |
22969158 | 3090 | spin_lock_init(&nm_i->nat_list_lock); |
e05df3b1 JK |
3091 | |
3092 | mutex_init(&nm_i->build_lock); | |
b8559dc2 | 3093 | spin_lock_init(&nm_i->nid_list_lock); |
b873b798 | 3094 | init_rwsem(&nm_i->nat_tree_lock); |
e05df3b1 | 3095 | |
e05df3b1 | 3096 | nm_i->next_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid); |
79b5793b | 3097 | nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP); |
e05df3b1 JK |
3098 | version_bitmap = __bitmap_ptr(sbi, NAT_BITMAP); |
3099 | if (!version_bitmap) | |
3100 | return -EFAULT; | |
3101 | ||
79b5793b AG |
3102 | nm_i->nat_bitmap = kmemdup(version_bitmap, nm_i->bitmap_size, |
3103 | GFP_KERNEL); | |
3104 | if (!nm_i->nat_bitmap) | |
3105 | return -ENOMEM; | |
599a09b2 | 3106 | |
22ad0b6a JK |
3107 | err = __get_nat_bitmaps(sbi); |
3108 | if (err) | |
3109 | return err; | |
3110 | ||
599a09b2 CY |
3111 | #ifdef CONFIG_F2FS_CHECK_FS |
3112 | nm_i->nat_bitmap_mir = kmemdup(version_bitmap, nm_i->bitmap_size, | |
3113 | GFP_KERNEL); | |
3114 | if (!nm_i->nat_bitmap_mir) | |
3115 | return -ENOMEM; | |
3116 | #endif | |
3117 | ||
e05df3b1 JK |
3118 | return 0; |
3119 | } | |
3120 | ||
9f7e4a2c | 3121 | static int init_free_nid_cache(struct f2fs_sb_info *sbi) |
4ac91242 CY |
3122 | { |
3123 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
bb1105e4 | 3124 | int i; |
4ac91242 | 3125 | |
026f0507 | 3126 | nm_i->free_nid_bitmap = |
0b6d4ca0 EB |
3127 | f2fs_kvzalloc(sbi, array_size(sizeof(unsigned char *), |
3128 | nm_i->nat_blocks), | |
3129 | GFP_KERNEL); | |
4ac91242 CY |
3130 | if (!nm_i->free_nid_bitmap) |
3131 | return -ENOMEM; | |
3132 | ||
bb1105e4 JK |
3133 | for (i = 0; i < nm_i->nat_blocks; i++) { |
3134 | nm_i->free_nid_bitmap[i] = f2fs_kvzalloc(sbi, | |
e15d54d5 | 3135 | f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK), GFP_KERNEL); |
68c43a23 | 3136 | if (!nm_i->free_nid_bitmap[i]) |
bb1105e4 JK |
3137 | return -ENOMEM; |
3138 | } | |
3139 | ||
628b3d14 | 3140 | nm_i->nat_block_bitmap = f2fs_kvzalloc(sbi, nm_i->nat_blocks / 8, |
4ac91242 CY |
3141 | GFP_KERNEL); |
3142 | if (!nm_i->nat_block_bitmap) | |
3143 | return -ENOMEM; | |
586d1492 | 3144 | |
9d2a789c KC |
3145 | nm_i->free_nid_count = |
3146 | f2fs_kvzalloc(sbi, array_size(sizeof(unsigned short), | |
3147 | nm_i->nat_blocks), | |
3148 | GFP_KERNEL); | |
586d1492 CY |
3149 | if (!nm_i->free_nid_count) |
3150 | return -ENOMEM; | |
4ac91242 CY |
3151 | return 0; |
3152 | } | |
3153 | ||
4d57b86d | 3154 | int f2fs_build_node_manager(struct f2fs_sb_info *sbi) |
e05df3b1 JK |
3155 | { |
3156 | int err; | |
3157 | ||
acbf054d CY |
3158 | sbi->nm_info = f2fs_kzalloc(sbi, sizeof(struct f2fs_nm_info), |
3159 | GFP_KERNEL); | |
e05df3b1 JK |
3160 | if (!sbi->nm_info) |
3161 | return -ENOMEM; | |
3162 | ||
3163 | err = init_node_manager(sbi); | |
3164 | if (err) | |
3165 | return err; | |
3166 | ||
4ac91242 CY |
3167 | err = init_free_nid_cache(sbi); |
3168 | if (err) | |
3169 | return err; | |
3170 | ||
7041d5d2 CY |
3171 | /* load free nid status from nat_bits table */ |
3172 | load_free_nid_bitmap(sbi); | |
3173 | ||
e2374015 | 3174 | return f2fs_build_free_nids(sbi, true, true); |
e05df3b1 JK |
3175 | } |
3176 | ||
4d57b86d | 3177 | void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi) |
e05df3b1 JK |
3178 | { |
3179 | struct f2fs_nm_info *nm_i = NM_I(sbi); | |
3180 | struct free_nid *i, *next_i; | |
3181 | struct nat_entry *natvec[NATVEC_SIZE]; | |
7aed0d45 | 3182 | struct nat_entry_set *setvec[SETVEC_SIZE]; |
e05df3b1 JK |
3183 | nid_t nid = 0; |
3184 | unsigned int found; | |
3185 | ||
3186 | if (!nm_i) | |
3187 | return; | |
3188 | ||
3189 | /* destroy free nid list */ | |
b8559dc2 | 3190 | spin_lock(&nm_i->nid_list_lock); |
9a4ffdf5 | 3191 | list_for_each_entry_safe(i, next_i, &nm_i->free_nid_list, list) { |
a0761f63 | 3192 | __remove_free_nid(sbi, i, FREE_NID); |
b8559dc2 | 3193 | spin_unlock(&nm_i->nid_list_lock); |
cf0ee0f0 | 3194 | kmem_cache_free(free_nid_slab, i); |
b8559dc2 | 3195 | spin_lock(&nm_i->nid_list_lock); |
e05df3b1 | 3196 | } |
9a4ffdf5 CY |
3197 | f2fs_bug_on(sbi, nm_i->nid_cnt[FREE_NID]); |
3198 | f2fs_bug_on(sbi, nm_i->nid_cnt[PREALLOC_NID]); | |
3199 | f2fs_bug_on(sbi, !list_empty(&nm_i->free_nid_list)); | |
b8559dc2 | 3200 | spin_unlock(&nm_i->nid_list_lock); |
e05df3b1 JK |
3201 | |
3202 | /* destroy nat cache */ | |
b873b798 | 3203 | down_write(&nm_i->nat_tree_lock); |
e05df3b1 JK |
3204 | while ((found = __gang_lookup_nat_cache(nm_i, |
3205 | nid, NATVEC_SIZE, natvec))) { | |
3206 | unsigned idx; | |
7aed0d45 | 3207 | |
b6ce391e | 3208 | nid = nat_get_nid(natvec[found - 1]) + 1; |
22969158 CY |
3209 | for (idx = 0; idx < found; idx++) { |
3210 | spin_lock(&nm_i->nat_list_lock); | |
3211 | list_del(&natvec[idx]->list); | |
3212 | spin_unlock(&nm_i->nat_list_lock); | |
3213 | ||
b6ce391e | 3214 | __del_from_nat_cache(nm_i, natvec[idx]); |
22969158 | 3215 | } |
e05df3b1 | 3216 | } |
9850cf4a | 3217 | f2fs_bug_on(sbi, nm_i->nat_cnt); |
7aed0d45 JK |
3218 | |
3219 | /* destroy nat set cache */ | |
3220 | nid = 0; | |
3221 | while ((found = __gang_lookup_nat_set(nm_i, | |
3222 | nid, SETVEC_SIZE, setvec))) { | |
3223 | unsigned idx; | |
3224 | ||
3225 | nid = setvec[found - 1]->set + 1; | |
3226 | for (idx = 0; idx < found; idx++) { | |
3227 | /* entry_cnt is not zero, when cp_error was occurred */ | |
3228 | f2fs_bug_on(sbi, !list_empty(&setvec[idx]->entry_list)); | |
3229 | radix_tree_delete(&nm_i->nat_set_root, setvec[idx]->set); | |
3230 | kmem_cache_free(nat_entry_set_slab, setvec[idx]); | |
3231 | } | |
3232 | } | |
b873b798 | 3233 | up_write(&nm_i->nat_tree_lock); |
e05df3b1 | 3234 | |
4ac91242 | 3235 | kvfree(nm_i->nat_block_bitmap); |
bb1105e4 JK |
3236 | if (nm_i->free_nid_bitmap) { |
3237 | int i; | |
3238 | ||
3239 | for (i = 0; i < nm_i->nat_blocks; i++) | |
3240 | kvfree(nm_i->free_nid_bitmap[i]); | |
5222595d | 3241 | kvfree(nm_i->free_nid_bitmap); |
bb1105e4 | 3242 | } |
586d1492 | 3243 | kvfree(nm_i->free_nid_count); |
4ac91242 | 3244 | |
5222595d JK |
3245 | kvfree(nm_i->nat_bitmap); |
3246 | kvfree(nm_i->nat_bits); | |
599a09b2 | 3247 | #ifdef CONFIG_F2FS_CHECK_FS |
5222595d | 3248 | kvfree(nm_i->nat_bitmap_mir); |
599a09b2 | 3249 | #endif |
e05df3b1 | 3250 | sbi->nm_info = NULL; |
5222595d | 3251 | kvfree(nm_i); |
e05df3b1 JK |
3252 | } |
3253 | ||
4d57b86d | 3254 | int __init f2fs_create_node_manager_caches(void) |
e05df3b1 | 3255 | { |
98510003 | 3256 | nat_entry_slab = f2fs_kmem_cache_create("f2fs_nat_entry", |
e8512d2e | 3257 | sizeof(struct nat_entry)); |
e05df3b1 | 3258 | if (!nat_entry_slab) |
aec71382 | 3259 | goto fail; |
e05df3b1 | 3260 | |
98510003 | 3261 | free_nid_slab = f2fs_kmem_cache_create("f2fs_free_nid", |
e8512d2e | 3262 | sizeof(struct free_nid)); |
aec71382 | 3263 | if (!free_nid_slab) |
ce3e6d25 | 3264 | goto destroy_nat_entry; |
aec71382 | 3265 | |
98510003 | 3266 | nat_entry_set_slab = f2fs_kmem_cache_create("f2fs_nat_entry_set", |
aec71382 CY |
3267 | sizeof(struct nat_entry_set)); |
3268 | if (!nat_entry_set_slab) | |
ce3e6d25 | 3269 | goto destroy_free_nid; |
50fa53ec | 3270 | |
98510003 | 3271 | fsync_node_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_node_entry", |
50fa53ec CY |
3272 | sizeof(struct fsync_node_entry)); |
3273 | if (!fsync_node_entry_slab) | |
3274 | goto destroy_nat_entry_set; | |
e05df3b1 | 3275 | return 0; |
aec71382 | 3276 | |
50fa53ec CY |
3277 | destroy_nat_entry_set: |
3278 | kmem_cache_destroy(nat_entry_set_slab); | |
ce3e6d25 | 3279 | destroy_free_nid: |
aec71382 | 3280 | kmem_cache_destroy(free_nid_slab); |
ce3e6d25 | 3281 | destroy_nat_entry: |
aec71382 CY |
3282 | kmem_cache_destroy(nat_entry_slab); |
3283 | fail: | |
3284 | return -ENOMEM; | |
e05df3b1 JK |
3285 | } |
3286 | ||
4d57b86d | 3287 | void f2fs_destroy_node_manager_caches(void) |
e05df3b1 | 3288 | { |
50fa53ec | 3289 | kmem_cache_destroy(fsync_node_entry_slab); |
aec71382 | 3290 | kmem_cache_destroy(nat_entry_set_slab); |
e05df3b1 JK |
3291 | kmem_cache_destroy(free_nid_slab); |
3292 | kmem_cache_destroy(nat_entry_slab); | |
3293 | } |