Commit | Line | Data |
---|---|---|
0a8165d7 | 1 | /* |
aff063e2 JK |
2 | * fs/f2fs/super.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/statfs.h> | |
aff063e2 JK |
15 | #include <linux/buffer_head.h> |
16 | #include <linux/backing-dev.h> | |
17 | #include <linux/kthread.h> | |
18 | #include <linux/parser.h> | |
19 | #include <linux/mount.h> | |
20 | #include <linux/seq_file.h> | |
5e176d54 | 21 | #include <linux/proc_fs.h> |
aff063e2 JK |
22 | #include <linux/random.h> |
23 | #include <linux/exportfs.h> | |
d3ee456d | 24 | #include <linux/blkdev.h> |
0abd675e | 25 | #include <linux/quotaops.h> |
aff063e2 | 26 | #include <linux/f2fs_fs.h> |
b59d0bae | 27 | #include <linux/sysfs.h> |
aff063e2 JK |
28 | |
29 | #include "f2fs.h" | |
30 | #include "node.h" | |
5ec4e49f | 31 | #include "segment.h" |
aff063e2 | 32 | #include "xattr.h" |
b59d0bae | 33 | #include "gc.h" |
db9f7c1a | 34 | #include "trace.h" |
aff063e2 | 35 | |
a2a4a7e4 NJ |
36 | #define CREATE_TRACE_POINTS |
37 | #include <trace/events/f2fs.h> | |
38 | ||
aff063e2 JK |
39 | static struct kmem_cache *f2fs_inode_cachep; |
40 | ||
73faec4d | 41 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2c63fead JK |
42 | |
43 | char *fault_name[FAULT_MAX] = { | |
44 | [FAULT_KMALLOC] = "kmalloc", | |
c41f3cc3 | 45 | [FAULT_PAGE_ALLOC] = "page alloc", |
cb78942b JK |
46 | [FAULT_ALLOC_NID] = "alloc nid", |
47 | [FAULT_ORPHAN] = "orphan", | |
48 | [FAULT_BLOCK] = "no more block", | |
49 | [FAULT_DIR_DEPTH] = "too big dir depth", | |
53aa6bbf | 50 | [FAULT_EVICT_INODE] = "evict_inode fail", |
14b44d23 | 51 | [FAULT_TRUNCATE] = "truncate fail", |
8b038c70 | 52 | [FAULT_IO] = "IO error", |
0f348028 | 53 | [FAULT_CHECKPOINT] = "checkpoint error", |
2c63fead | 54 | }; |
08796897 | 55 | |
1ecc0c5c CY |
56 | static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, |
57 | unsigned int rate) | |
08796897 | 58 | { |
1ecc0c5c CY |
59 | struct f2fs_fault_info *ffi = &sbi->fault_info; |
60 | ||
08796897 | 61 | if (rate) { |
1ecc0c5c CY |
62 | atomic_set(&ffi->inject_ops, 0); |
63 | ffi->inject_rate = rate; | |
64 | ffi->inject_type = (1 << FAULT_MAX) - 1; | |
08796897 | 65 | } else { |
1ecc0c5c | 66 | memset(ffi, 0, sizeof(struct f2fs_fault_info)); |
08796897 SY |
67 | } |
68 | } | |
73faec4d JK |
69 | #endif |
70 | ||
2658e50d JK |
71 | /* f2fs-wide shrinker description */ |
72 | static struct shrinker f2fs_shrinker_info = { | |
73 | .scan_objects = f2fs_shrink_scan, | |
74 | .count_objects = f2fs_shrink_count, | |
75 | .seeks = DEFAULT_SEEKS, | |
76 | }; | |
77 | ||
aff063e2 | 78 | enum { |
696c018c | 79 | Opt_gc_background, |
aff063e2 | 80 | Opt_disable_roll_forward, |
2d834bf9 | 81 | Opt_norecovery, |
aff063e2 | 82 | Opt_discard, |
64058be9 | 83 | Opt_nodiscard, |
aff063e2 | 84 | Opt_noheap, |
7a20b8a6 | 85 | Opt_heap, |
4058c511 | 86 | Opt_user_xattr, |
aff063e2 | 87 | Opt_nouser_xattr, |
4058c511 | 88 | Opt_acl, |
aff063e2 JK |
89 | Opt_noacl, |
90 | Opt_active_logs, | |
91 | Opt_disable_ext_identify, | |
444c580f | 92 | Opt_inline_xattr, |
23cf7212 | 93 | Opt_noinline_xattr, |
8274de77 | 94 | Opt_inline_data, |
5efd3c6f | 95 | Opt_inline_dentry, |
97c1794a | 96 | Opt_noinline_dentry, |
6b4afdd7 | 97 | Opt_flush_merge, |
69e9e427 | 98 | Opt_noflush_merge, |
0f7b2abd | 99 | Opt_nobarrier, |
d5053a34 | 100 | Opt_fastboot, |
89672159 | 101 | Opt_extent_cache, |
7daaea25 | 102 | Opt_noextent_cache, |
75342797 | 103 | Opt_noinline_data, |
343f40f0 | 104 | Opt_data_flush, |
36abef4e | 105 | Opt_mode, |
ec91538d | 106 | Opt_io_size_bits, |
73faec4d | 107 | Opt_fault_injection, |
6d94c74a JK |
108 | Opt_lazytime, |
109 | Opt_nolazytime, | |
0abd675e CY |
110 | Opt_usrquota, |
111 | Opt_grpquota, | |
aff063e2 JK |
112 | Opt_err, |
113 | }; | |
114 | ||
115 | static match_table_t f2fs_tokens = { | |
696c018c | 116 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 117 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 118 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 119 | {Opt_discard, "discard"}, |
64058be9 | 120 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 121 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 122 | {Opt_heap, "heap"}, |
4058c511 | 123 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 124 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 125 | {Opt_acl, "acl"}, |
aff063e2 JK |
126 | {Opt_noacl, "noacl"}, |
127 | {Opt_active_logs, "active_logs=%u"}, | |
128 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 129 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 130 | {Opt_noinline_xattr, "noinline_xattr"}, |
8274de77 | 131 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 132 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 133 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 134 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 135 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 136 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 137 | {Opt_fastboot, "fastboot"}, |
89672159 | 138 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 139 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 140 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 141 | {Opt_data_flush, "data_flush"}, |
36abef4e | 142 | {Opt_mode, "mode=%s"}, |
ec91538d | 143 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 144 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
145 | {Opt_lazytime, "lazytime"}, |
146 | {Opt_nolazytime, "nolazytime"}, | |
0abd675e CY |
147 | {Opt_usrquota, "usrquota"}, |
148 | {Opt_grpquota, "grpquota"}, | |
aff063e2 JK |
149 | {Opt_err, NULL}, |
150 | }; | |
151 | ||
a07ef784 NJ |
152 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
153 | { | |
154 | struct va_format vaf; | |
155 | va_list args; | |
156 | ||
157 | va_start(args, fmt); | |
158 | vaf.fmt = fmt; | |
159 | vaf.va = &args; | |
160 | printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); | |
161 | va_end(args); | |
162 | } | |
163 | ||
aff063e2 JK |
164 | static void init_once(void *foo) |
165 | { | |
166 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
167 | ||
aff063e2 JK |
168 | inode_init_once(&fi->vfs_inode); |
169 | } | |
170 | ||
696c018c NJ |
171 | static int parse_options(struct super_block *sb, char *options) |
172 | { | |
173 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 174 | struct request_queue *q; |
696c018c NJ |
175 | substring_t args[MAX_OPT_ARGS]; |
176 | char *p, *name; | |
177 | int arg = 0; | |
178 | ||
179 | if (!options) | |
180 | return 0; | |
181 | ||
182 | while ((p = strsep(&options, ",")) != NULL) { | |
183 | int token; | |
184 | if (!*p) | |
185 | continue; | |
186 | /* | |
187 | * Initialize args struct so we know whether arg was | |
188 | * found; some options take optional arguments. | |
189 | */ | |
190 | args[0].to = args[0].from = NULL; | |
191 | token = match_token(p, f2fs_tokens, args); | |
192 | ||
193 | switch (token) { | |
194 | case Opt_gc_background: | |
195 | name = match_strdup(&args[0]); | |
196 | ||
197 | if (!name) | |
198 | return -ENOMEM; | |
6aefd93b | 199 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 200 | set_opt(sbi, BG_GC); |
6aefd93b JK |
201 | clear_opt(sbi, FORCE_FG_GC); |
202 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 203 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
204 | clear_opt(sbi, FORCE_FG_GC); |
205 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
206 | set_opt(sbi, BG_GC); | |
207 | set_opt(sbi, FORCE_FG_GC); | |
208 | } else { | |
696c018c NJ |
209 | kfree(name); |
210 | return -EINVAL; | |
211 | } | |
212 | kfree(name); | |
213 | break; | |
214 | case Opt_disable_roll_forward: | |
215 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
216 | break; | |
2d834bf9 JK |
217 | case Opt_norecovery: |
218 | /* this option mounts f2fs with ro */ | |
219 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
220 | if (!f2fs_readonly(sb)) | |
221 | return -EINVAL; | |
222 | break; | |
696c018c | 223 | case Opt_discard: |
09d54cdd CY |
224 | q = bdev_get_queue(sb->s_bdev); |
225 | if (blk_queue_discard(q)) { | |
226 | set_opt(sbi, DISCARD); | |
0ab02998 | 227 | } else if (!f2fs_sb_mounted_blkzoned(sb)) { |
09d54cdd CY |
228 | f2fs_msg(sb, KERN_WARNING, |
229 | "mounting with \"discard\" option, but " | |
230 | "the device does not support discard"); | |
231 | } | |
696c018c | 232 | break; |
64058be9 | 233 | case Opt_nodiscard: |
96ba2dec DLM |
234 | if (f2fs_sb_mounted_blkzoned(sb)) { |
235 | f2fs_msg(sb, KERN_WARNING, | |
236 | "discard is required for zoned block devices"); | |
237 | return -EINVAL; | |
238 | } | |
64058be9 | 239 | clear_opt(sbi, DISCARD); |
487df616 | 240 | break; |
696c018c NJ |
241 | case Opt_noheap: |
242 | set_opt(sbi, NOHEAP); | |
243 | break; | |
7a20b8a6 JK |
244 | case Opt_heap: |
245 | clear_opt(sbi, NOHEAP); | |
246 | break; | |
696c018c | 247 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
248 | case Opt_user_xattr: |
249 | set_opt(sbi, XATTR_USER); | |
250 | break; | |
696c018c NJ |
251 | case Opt_nouser_xattr: |
252 | clear_opt(sbi, XATTR_USER); | |
253 | break; | |
444c580f JK |
254 | case Opt_inline_xattr: |
255 | set_opt(sbi, INLINE_XATTR); | |
256 | break; | |
23cf7212 CY |
257 | case Opt_noinline_xattr: |
258 | clear_opt(sbi, INLINE_XATTR); | |
259 | break; | |
696c018c | 260 | #else |
4058c511 KA |
261 | case Opt_user_xattr: |
262 | f2fs_msg(sb, KERN_INFO, | |
263 | "user_xattr options not supported"); | |
264 | break; | |
696c018c NJ |
265 | case Opt_nouser_xattr: |
266 | f2fs_msg(sb, KERN_INFO, | |
267 | "nouser_xattr options not supported"); | |
268 | break; | |
444c580f JK |
269 | case Opt_inline_xattr: |
270 | f2fs_msg(sb, KERN_INFO, | |
271 | "inline_xattr options not supported"); | |
272 | break; | |
23cf7212 CY |
273 | case Opt_noinline_xattr: |
274 | f2fs_msg(sb, KERN_INFO, | |
275 | "noinline_xattr options not supported"); | |
276 | break; | |
696c018c NJ |
277 | #endif |
278 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
279 | case Opt_acl: |
280 | set_opt(sbi, POSIX_ACL); | |
281 | break; | |
696c018c NJ |
282 | case Opt_noacl: |
283 | clear_opt(sbi, POSIX_ACL); | |
284 | break; | |
285 | #else | |
4058c511 KA |
286 | case Opt_acl: |
287 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
288 | break; | |
696c018c NJ |
289 | case Opt_noacl: |
290 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
291 | break; | |
292 | #endif | |
293 | case Opt_active_logs: | |
294 | if (args->from && match_int(args, &arg)) | |
295 | return -EINVAL; | |
296 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
297 | return -EINVAL; | |
298 | sbi->active_logs = arg; | |
299 | break; | |
300 | case Opt_disable_ext_identify: | |
301 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
302 | break; | |
8274de77 HL |
303 | case Opt_inline_data: |
304 | set_opt(sbi, INLINE_DATA); | |
305 | break; | |
5efd3c6f CY |
306 | case Opt_inline_dentry: |
307 | set_opt(sbi, INLINE_DENTRY); | |
308 | break; | |
97c1794a CY |
309 | case Opt_noinline_dentry: |
310 | clear_opt(sbi, INLINE_DENTRY); | |
311 | break; | |
6b4afdd7 JK |
312 | case Opt_flush_merge: |
313 | set_opt(sbi, FLUSH_MERGE); | |
314 | break; | |
69e9e427 JK |
315 | case Opt_noflush_merge: |
316 | clear_opt(sbi, FLUSH_MERGE); | |
317 | break; | |
0f7b2abd JK |
318 | case Opt_nobarrier: |
319 | set_opt(sbi, NOBARRIER); | |
320 | break; | |
d5053a34 JK |
321 | case Opt_fastboot: |
322 | set_opt(sbi, FASTBOOT); | |
323 | break; | |
89672159 CY |
324 | case Opt_extent_cache: |
325 | set_opt(sbi, EXTENT_CACHE); | |
326 | break; | |
7daaea25 JK |
327 | case Opt_noextent_cache: |
328 | clear_opt(sbi, EXTENT_CACHE); | |
329 | break; | |
75342797 WL |
330 | case Opt_noinline_data: |
331 | clear_opt(sbi, INLINE_DATA); | |
332 | break; | |
343f40f0 CY |
333 | case Opt_data_flush: |
334 | set_opt(sbi, DATA_FLUSH); | |
335 | break; | |
36abef4e JK |
336 | case Opt_mode: |
337 | name = match_strdup(&args[0]); | |
338 | ||
339 | if (!name) | |
340 | return -ENOMEM; | |
341 | if (strlen(name) == 8 && | |
342 | !strncmp(name, "adaptive", 8)) { | |
3adc57e9 DLM |
343 | if (f2fs_sb_mounted_blkzoned(sb)) { |
344 | f2fs_msg(sb, KERN_WARNING, | |
345 | "adaptive mode is not allowed with " | |
346 | "zoned block device feature"); | |
347 | kfree(name); | |
348 | return -EINVAL; | |
349 | } | |
52763a4b | 350 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
351 | } else if (strlen(name) == 3 && |
352 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 353 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
354 | } else { |
355 | kfree(name); | |
356 | return -EINVAL; | |
357 | } | |
358 | kfree(name); | |
359 | break; | |
ec91538d JK |
360 | case Opt_io_size_bits: |
361 | if (args->from && match_int(args, &arg)) | |
362 | return -EINVAL; | |
363 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
364 | f2fs_msg(sb, KERN_WARNING, | |
365 | "Not support %d, larger than %d", | |
366 | 1 << arg, BIO_MAX_PAGES); | |
367 | return -EINVAL; | |
368 | } | |
369 | sbi->write_io_size_bits = arg; | |
370 | break; | |
73faec4d JK |
371 | case Opt_fault_injection: |
372 | if (args->from && match_int(args, &arg)) | |
373 | return -EINVAL; | |
374 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 375 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 376 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
377 | #else |
378 | f2fs_msg(sb, KERN_INFO, | |
379 | "FAULT_INJECTION was not selected"); | |
380 | #endif | |
381 | break; | |
6d94c74a JK |
382 | case Opt_lazytime: |
383 | sb->s_flags |= MS_LAZYTIME; | |
384 | break; | |
385 | case Opt_nolazytime: | |
386 | sb->s_flags &= ~MS_LAZYTIME; | |
387 | break; | |
0abd675e CY |
388 | #ifdef CONFIG_QUOTA |
389 | case Opt_usrquota: | |
390 | set_opt(sbi, USRQUOTA); | |
391 | break; | |
392 | case Opt_grpquota: | |
393 | set_opt(sbi, GRPQUOTA); | |
394 | break; | |
395 | #else | |
396 | case Opt_usrquota: | |
397 | case Opt_grpquota: | |
398 | f2fs_msg(sb, KERN_INFO, | |
399 | "quota operations not supported"); | |
400 | break; | |
401 | #endif | |
696c018c NJ |
402 | default: |
403 | f2fs_msg(sb, KERN_ERR, | |
404 | "Unrecognized mount option \"%s\" or missing value", | |
405 | p); | |
406 | return -EINVAL; | |
407 | } | |
408 | } | |
ec91538d JK |
409 | |
410 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
411 | f2fs_msg(sb, KERN_ERR, | |
412 | "Should set mode=lfs with %uKB-sized IO", | |
413 | F2FS_IO_SIZE_KB(sbi)); | |
414 | return -EINVAL; | |
415 | } | |
696c018c NJ |
416 | return 0; |
417 | } | |
418 | ||
aff063e2 JK |
419 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
420 | { | |
421 | struct f2fs_inode_info *fi; | |
422 | ||
a0acdfe0 | 423 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
424 | if (!fi) |
425 | return NULL; | |
426 | ||
427 | init_once((void *) fi); | |
428 | ||
434720fa | 429 | /* Initialize f2fs-specific inode info */ |
aff063e2 | 430 | fi->vfs_inode.i_version = 1; |
204706c7 | 431 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
432 | fi->i_current_depth = 1; |
433 | fi->i_advise = 0; | |
d928bfbf | 434 | init_rwsem(&fi->i_sem); |
2710fd7e | 435 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 436 | INIT_LIST_HEAD(&fi->gdirty_list); |
88b88a66 JK |
437 | INIT_LIST_HEAD(&fi->inmem_pages); |
438 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
439 | init_rwsem(&fi->dio_rwsem[READ]); |
440 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 441 | init_rwsem(&fi->i_mmap_sem); |
aff063e2 | 442 | |
0abd675e CY |
443 | #ifdef CONFIG_QUOTA |
444 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
445 | fi->i_reserved_quota = 0; | |
446 | #endif | |
ab9fa662 JK |
447 | /* Will be used by directory only */ |
448 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 449 | |
aff063e2 JK |
450 | return &fi->vfs_inode; |
451 | } | |
452 | ||
531ad7d5 JK |
453 | static int f2fs_drop_inode(struct inode *inode) |
454 | { | |
b8d96a30 | 455 | int ret; |
531ad7d5 JK |
456 | /* |
457 | * This is to avoid a deadlock condition like below. | |
458 | * writeback_single_inode(inode) | |
459 | * - f2fs_write_data_page | |
460 | * - f2fs_gc -> iput -> evict | |
461 | * - inode_wait_for_writeback(inode) | |
462 | */ | |
0f18b462 | 463 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 464 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
465 | /* to avoid evict_inode call simultaneously */ |
466 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
467 | spin_unlock(&inode->i_lock); |
468 | ||
469 | /* some remained atomic pages should discarded */ | |
470 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 471 | drop_inmem_pages(inode); |
06e1bc05 | 472 | |
3e72f721 JK |
473 | /* should remain fi->extent_tree for writepage */ |
474 | f2fs_destroy_extent_node(inode); | |
475 | ||
06e1bc05 | 476 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 477 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
478 | |
479 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 480 | f2fs_truncate(inode); |
06e1bc05 JK |
481 | |
482 | sb_end_intwrite(inode->i_sb); | |
483 | ||
0b81d077 | 484 | fscrypt_put_encryption_info(inode, NULL); |
06e1bc05 | 485 | spin_lock(&inode->i_lock); |
3e72f721 | 486 | atomic_dec(&inode->i_count); |
06e1bc05 | 487 | } |
b8d96a30 | 488 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 489 | return 0; |
06e1bc05 | 490 | } |
b8d96a30 HP |
491 | ret = generic_drop_inode(inode); |
492 | trace_f2fs_drop_inode(inode, ret); | |
493 | return ret; | |
531ad7d5 JK |
494 | } |
495 | ||
7c45729a | 496 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 497 | { |
0f18b462 | 498 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 499 | int ret = 0; |
0f18b462 | 500 | |
0f18b462 JK |
501 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
502 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
503 | ret = 1; |
504 | } else { | |
505 | set_inode_flag(inode, FI_DIRTY_INODE); | |
506 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 507 | } |
7c45729a JK |
508 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
509 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 510 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
511 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
512 | } | |
338bbfa0 | 513 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 514 | return ret; |
0f18b462 JK |
515 | } |
516 | ||
517 | void f2fs_inode_synced(struct inode *inode) | |
518 | { | |
519 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
520 | ||
521 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
522 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
523 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
524 | return; | |
525 | } | |
7c45729a JK |
526 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
527 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
528 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
529 | } | |
0f18b462 | 530 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 531 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 532 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 533 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
534 | } |
535 | ||
b56ab837 JK |
536 | /* |
537 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
538 | * | |
539 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
540 | */ | |
541 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
542 | { | |
543 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
544 | ||
545 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
546 | inode->i_ino == F2FS_META_INO(sbi)) | |
547 | return; | |
548 | ||
549 | if (flags == I_DIRTY_TIME) | |
550 | return; | |
551 | ||
552 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
553 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
554 | ||
7c45729a | 555 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
556 | } |
557 | ||
aff063e2 JK |
558 | static void f2fs_i_callback(struct rcu_head *head) |
559 | { | |
560 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
561 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
562 | } | |
563 | ||
25ca923b | 564 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
565 | { |
566 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
567 | } | |
568 | ||
523be8a6 JK |
569 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
570 | { | |
41382ec4 | 571 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 572 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
573 | } |
574 | ||
3c62be17 JK |
575 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
576 | { | |
577 | int i; | |
578 | ||
579 | for (i = 0; i < sbi->s_ndevs; i++) { | |
580 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
581 | #ifdef CONFIG_BLK_DEV_ZONED | |
582 | kfree(FDEV(i).blkz_type); | |
583 | #endif | |
584 | } | |
585 | kfree(sbi->devs); | |
586 | } | |
587 | ||
0abd675e | 588 | static void f2fs_quota_off_umount(struct super_block *sb); |
aff063e2 JK |
589 | static void f2fs_put_super(struct super_block *sb) |
590 | { | |
591 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 592 | int i; |
aff063e2 | 593 | |
0abd675e | 594 | f2fs_quota_off_umount(sb); |
aff063e2 | 595 | |
2658e50d JK |
596 | /* prevent remaining shrinker jobs */ |
597 | mutex_lock(&sbi->umount_mutex); | |
598 | ||
85dc2f2c JK |
599 | /* |
600 | * We don't need to do checkpoint when superblock is clean. | |
601 | * But, the previous checkpoint was not done by umount, it needs to do | |
602 | * clean checkpoint again. | |
603 | */ | |
caf0047e | 604 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 605 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
606 | struct cp_control cpc = { |
607 | .reason = CP_UMOUNT, | |
608 | }; | |
609 | write_checkpoint(sbi, &cpc); | |
610 | } | |
aff063e2 | 611 | |
4e6a8d9b | 612 | /* be sure to wait for any on-going discard commands */ |
d431413f | 613 | f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 614 | |
663f387b | 615 | if (f2fs_discard_en(sbi) && !sbi->discard_blks) { |
1f43e2ad CY |
616 | struct cp_control cpc = { |
617 | .reason = CP_UMOUNT | CP_TRIMMED, | |
618 | }; | |
619 | write_checkpoint(sbi, &cpc); | |
620 | } | |
621 | ||
eca616f8 JK |
622 | /* write_checkpoint can update stat informaion */ |
623 | f2fs_destroy_stats(sbi); | |
624 | ||
cf779cab JK |
625 | /* |
626 | * normally superblock is clean, so we need to release this. | |
627 | * In addition, EIO will skip do checkpoint, we need this as well. | |
628 | */ | |
74ef9241 | 629 | release_ino_entry(sbi, true); |
6f12ac25 | 630 | |
2658e50d JK |
631 | f2fs_leave_shrinker(sbi); |
632 | mutex_unlock(&sbi->umount_mutex); | |
633 | ||
17c19120 | 634 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 635 | f2fs_flush_merged_writes(sbi); |
17c19120 | 636 | |
aff063e2 JK |
637 | iput(sbi->node_inode); |
638 | iput(sbi->meta_inode); | |
639 | ||
640 | /* destroy f2fs internal modules */ | |
641 | destroy_node_manager(sbi); | |
642 | destroy_segment_manager(sbi); | |
643 | ||
644 | kfree(sbi->ckpt); | |
a398101a CY |
645 | |
646 | f2fs_exit_sysfs(sbi); | |
aff063e2 JK |
647 | |
648 | sb->s_fs_info = NULL; | |
43b6573b KM |
649 | if (sbi->s_chksum_driver) |
650 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 651 | kfree(sbi->raw_super); |
523be8a6 | 652 | |
3c62be17 | 653 | destroy_device_list(sbi); |
b6895e8f | 654 | mempool_destroy(sbi->write_io_dummy); |
523be8a6 | 655 | destroy_percpu_info(sbi); |
a912b54d JK |
656 | for (i = 0; i < NR_PAGE_TYPE; i++) |
657 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
658 | kfree(sbi); |
659 | } | |
660 | ||
661 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
662 | { | |
663 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 664 | int err = 0; |
aff063e2 | 665 | |
a2a4a7e4 NJ |
666 | trace_f2fs_sync_fs(sb, sync); |
667 | ||
b7473754 | 668 | if (sync) { |
d5053a34 JK |
669 | struct cp_control cpc; |
670 | ||
119ee914 JK |
671 | cpc.reason = __get_cp_reason(sbi); |
672 | ||
b7473754 | 673 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 674 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 675 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 676 | } |
05ca3632 | 677 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 678 | |
c34f42e2 | 679 | return err; |
aff063e2 JK |
680 | } |
681 | ||
d6212a5f CL |
682 | static int f2fs_freeze(struct super_block *sb) |
683 | { | |
77888c1e | 684 | if (f2fs_readonly(sb)) |
d6212a5f CL |
685 | return 0; |
686 | ||
b4b9d34c JK |
687 | /* IO error happened before */ |
688 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
689 | return -EIO; | |
690 | ||
691 | /* must be clean, since sync_filesystem() was already called */ | |
692 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
693 | return -EINVAL; | |
694 | return 0; | |
d6212a5f CL |
695 | } |
696 | ||
697 | static int f2fs_unfreeze(struct super_block *sb) | |
698 | { | |
699 | return 0; | |
700 | } | |
701 | ||
aff063e2 JK |
702 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
703 | { | |
704 | struct super_block *sb = dentry->d_sb; | |
705 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
706 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
707 | block_t total_count, user_block_count, start_count, ovp_count; | |
0cc091d0 | 708 | u64 avail_node_count; |
aff063e2 JK |
709 | |
710 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
711 | user_block_count = sbi->user_block_count; | |
712 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
713 | ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; | |
714 | buf->f_type = F2FS_SUPER_MAGIC; | |
715 | buf->f_bsize = sbi->blocksize; | |
716 | ||
717 | buf->f_blocks = total_count - start_count; | |
3e6d0b4d | 718 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; |
daeb433e CY |
719 | buf->f_bavail = user_block_count - valid_user_blocks(sbi) - |
720 | sbi->reserved_blocks; | |
aff063e2 | 721 | |
0cc091d0 JK |
722 | avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
723 | ||
724 | if (avail_node_count > user_block_count) { | |
725 | buf->f_files = user_block_count; | |
726 | buf->f_ffree = buf->f_bavail; | |
727 | } else { | |
728 | buf->f_files = avail_node_count; | |
729 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
730 | buf->f_bavail); | |
731 | } | |
aff063e2 | 732 | |
5a20d339 | 733 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
734 | buf->f_fsid.val[0] = (u32)id; |
735 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
736 | ||
737 | return 0; | |
738 | } | |
739 | ||
740 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) | |
741 | { | |
742 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
743 | ||
6aefd93b JK |
744 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
745 | if (test_opt(sbi, FORCE_FG_GC)) | |
746 | seq_printf(seq, ",background_gc=%s", "sync"); | |
747 | else | |
748 | seq_printf(seq, ",background_gc=%s", "on"); | |
749 | } else { | |
696c018c | 750 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 751 | } |
aff063e2 JK |
752 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
753 | seq_puts(seq, ",disable_roll_forward"); | |
754 | if (test_opt(sbi, DISCARD)) | |
755 | seq_puts(seq, ",discard"); | |
756 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
757 | seq_puts(seq, ",no_heap"); |
758 | else | |
759 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
760 | #ifdef CONFIG_F2FS_FS_XATTR |
761 | if (test_opt(sbi, XATTR_USER)) | |
762 | seq_puts(seq, ",user_xattr"); | |
763 | else | |
764 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
765 | if (test_opt(sbi, INLINE_XATTR)) |
766 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
767 | else |
768 | seq_puts(seq, ",noinline_xattr"); | |
aff063e2 JK |
769 | #endif |
770 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
771 | if (test_opt(sbi, POSIX_ACL)) | |
772 | seq_puts(seq, ",acl"); | |
773 | else | |
774 | seq_puts(seq, ",noacl"); | |
775 | #endif | |
776 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 777 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
778 | if (test_opt(sbi, INLINE_DATA)) |
779 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
780 | else |
781 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
782 | if (test_opt(sbi, INLINE_DENTRY)) |
783 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
784 | else |
785 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 786 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 787 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
788 | if (test_opt(sbi, NOBARRIER)) |
789 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
790 | if (test_opt(sbi, FASTBOOT)) |
791 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
792 | if (test_opt(sbi, EXTENT_CACHE)) |
793 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
794 | else |
795 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
796 | if (test_opt(sbi, DATA_FLUSH)) |
797 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
798 | |
799 | seq_puts(seq, ",mode="); | |
800 | if (test_opt(sbi, ADAPTIVE)) | |
801 | seq_puts(seq, "adaptive"); | |
802 | else if (test_opt(sbi, LFS)) | |
803 | seq_puts(seq, "lfs"); | |
aff063e2 | 804 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
ec91538d JK |
805 | if (F2FS_IO_SIZE_BITS(sbi)) |
806 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
807 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
808 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
809 | seq_printf(seq, ",fault_injection=%u", |
810 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 811 | #endif |
0abd675e CY |
812 | #ifdef CONFIG_QUOTA |
813 | if (test_opt(sbi, USRQUOTA)) | |
814 | seq_puts(seq, ",usrquota"); | |
815 | if (test_opt(sbi, GRPQUOTA)) | |
816 | seq_puts(seq, ",grpquota"); | |
0cc0dec2 | 817 | #endif |
aff063e2 JK |
818 | |
819 | return 0; | |
820 | } | |
821 | ||
498c5e9f YH |
822 | static void default_options(struct f2fs_sb_info *sbi) |
823 | { | |
824 | /* init some FS parameters */ | |
825 | sbi->active_logs = NR_CURSEG_TYPE; | |
826 | ||
827 | set_opt(sbi, BG_GC); | |
39133a50 | 828 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 829 | set_opt(sbi, INLINE_DATA); |
97c1794a | 830 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 831 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 832 | set_opt(sbi, NOHEAP); |
6d94c74a | 833 | sbi->sb->s_flags |= MS_LAZYTIME; |
69e9e427 | 834 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 835 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
836 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
837 | set_opt(sbi, DISCARD); | |
838 | } else { | |
839 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
840 | } | |
498c5e9f YH |
841 | |
842 | #ifdef CONFIG_F2FS_FS_XATTR | |
843 | set_opt(sbi, XATTR_USER); | |
844 | #endif | |
845 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
846 | set_opt(sbi, POSIX_ACL); | |
847 | #endif | |
36dbd328 CY |
848 | |
849 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
850 | f2fs_build_fault_attr(sbi, 0); | |
851 | #endif | |
498c5e9f YH |
852 | } |
853 | ||
696c018c NJ |
854 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
855 | { | |
856 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
857 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 858 | unsigned long old_sb_flags; |
696c018c | 859 | int err, active_logs; |
876dc59e GZ |
860 | bool need_restart_gc = false; |
861 | bool need_stop_gc = false; | |
9cd81ce3 | 862 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
2443b8b3 CY |
863 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
864 | struct f2fs_fault_info ffi = sbi->fault_info; | |
865 | #endif | |
696c018c NJ |
866 | |
867 | /* | |
868 | * Save the old mount options in case we | |
869 | * need to restore them. | |
870 | */ | |
871 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 872 | old_sb_flags = sb->s_flags; |
696c018c NJ |
873 | active_logs = sbi->active_logs; |
874 | ||
df728b0f JK |
875 | /* recover superblocks we couldn't write due to previous RO mount */ |
876 | if (!(*flags & MS_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { | |
877 | err = f2fs_commit_super(sbi, false); | |
878 | f2fs_msg(sb, KERN_INFO, | |
879 | "Try to recover all the superblocks, ret: %d", err); | |
880 | if (!err) | |
881 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
882 | } | |
883 | ||
498c5e9f | 884 | default_options(sbi); |
26666c8a | 885 | |
696c018c NJ |
886 | /* parse mount options */ |
887 | err = parse_options(sb, data); | |
888 | if (err) | |
889 | goto restore_opts; | |
890 | ||
891 | /* | |
892 | * Previous and new state of filesystem is RO, | |
876dc59e | 893 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 894 | */ |
6b2920a5 | 895 | if (f2fs_readonly(sb) && (*flags & MS_RDONLY)) |
696c018c NJ |
896 | goto skip; |
897 | ||
0abd675e CY |
898 | if (!f2fs_readonly(sb) && (*flags & MS_RDONLY)) { |
899 | err = dquot_suspend(sb, -1); | |
900 | if (err < 0) | |
901 | goto restore_opts; | |
902 | } else { | |
903 | /* dquot_resume needs RW */ | |
904 | sb->s_flags &= ~MS_RDONLY; | |
905 | dquot_resume(sb, -1); | |
906 | } | |
907 | ||
9cd81ce3 CY |
908 | /* disallow enable/disable extent_cache dynamically */ |
909 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
910 | err = -EINVAL; | |
911 | f2fs_msg(sbi->sb, KERN_WARNING, | |
912 | "switch extent_cache option is not allowed"); | |
913 | goto restore_opts; | |
914 | } | |
915 | ||
696c018c NJ |
916 | /* |
917 | * We stop the GC thread if FS is mounted as RO | |
918 | * or if background_gc = off is passed in mount | |
919 | * option. Also sync the filesystem. | |
920 | */ | |
921 | if ((*flags & MS_RDONLY) || !test_opt(sbi, BG_GC)) { | |
922 | if (sbi->gc_thread) { | |
923 | stop_gc_thread(sbi); | |
876dc59e | 924 | need_restart_gc = true; |
696c018c | 925 | } |
aba291b3 | 926 | } else if (!sbi->gc_thread) { |
696c018c NJ |
927 | err = start_gc_thread(sbi); |
928 | if (err) | |
929 | goto restore_opts; | |
876dc59e GZ |
930 | need_stop_gc = true; |
931 | } | |
932 | ||
faa0e55b JK |
933 | if (*flags & MS_RDONLY) { |
934 | writeback_inodes_sb(sb, WB_REASON_SYNC); | |
935 | sync_inodes_sb(sb); | |
936 | ||
937 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
938 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
939 | f2fs_sync_fs(sb, 1); | |
940 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
941 | } | |
942 | ||
876dc59e GZ |
943 | /* |
944 | * We stop issue flush thread if FS is mounted as RO | |
945 | * or if flush_merge is not passed in mount option. | |
946 | */ | |
947 | if ((*flags & MS_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { | |
5eba8c5d JK |
948 | clear_opt(sbi, FLUSH_MERGE); |
949 | destroy_flush_cmd_control(sbi, false); | |
950 | } else { | |
2163d198 GZ |
951 | err = create_flush_cmd_control(sbi); |
952 | if (err) | |
a688b9d9 | 953 | goto restore_gc; |
696c018c NJ |
954 | } |
955 | skip: | |
956 | /* Update the POSIXACL Flag */ | |
df728b0f | 957 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
696c018c | 958 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); |
df728b0f | 959 | |
696c018c | 960 | return 0; |
876dc59e GZ |
961 | restore_gc: |
962 | if (need_restart_gc) { | |
963 | if (start_gc_thread(sbi)) | |
964 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 965 | "background gc thread has stopped"); |
876dc59e GZ |
966 | } else if (need_stop_gc) { |
967 | stop_gc_thread(sbi); | |
968 | } | |
696c018c NJ |
969 | restore_opts: |
970 | sbi->mount_opt = org_mount_opt; | |
971 | sbi->active_logs = active_logs; | |
0abd675e | 972 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
973 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
974 | sbi->fault_info = ffi; | |
975 | #endif | |
696c018c NJ |
976 | return err; |
977 | } | |
978 | ||
0abd675e CY |
979 | #ifdef CONFIG_QUOTA |
980 | /* Read data from quotafile */ | |
981 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
982 | size_t len, loff_t off) | |
983 | { | |
984 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
985 | struct address_space *mapping = inode->i_mapping; | |
986 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
987 | int offset = off & (sb->s_blocksize - 1); | |
988 | int tocopy; | |
989 | size_t toread; | |
990 | loff_t i_size = i_size_read(inode); | |
991 | struct page *page; | |
992 | char *kaddr; | |
993 | ||
994 | if (off > i_size) | |
995 | return 0; | |
996 | ||
997 | if (off + len > i_size) | |
998 | len = i_size - off; | |
999 | toread = len; | |
1000 | while (toread > 0) { | |
1001 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1002 | repeat: | |
1003 | page = read_mapping_page(mapping, blkidx, NULL); | |
1004 | if (IS_ERR(page)) | |
1005 | return PTR_ERR(page); | |
1006 | ||
1007 | lock_page(page); | |
1008 | ||
1009 | if (unlikely(page->mapping != mapping)) { | |
1010 | f2fs_put_page(page, 1); | |
1011 | goto repeat; | |
1012 | } | |
1013 | if (unlikely(!PageUptodate(page))) { | |
1014 | f2fs_put_page(page, 1); | |
1015 | return -EIO; | |
1016 | } | |
1017 | ||
1018 | kaddr = kmap_atomic(page); | |
1019 | memcpy(data, kaddr + offset, tocopy); | |
1020 | kunmap_atomic(kaddr); | |
1021 | f2fs_put_page(page, 1); | |
1022 | ||
1023 | offset = 0; | |
1024 | toread -= tocopy; | |
1025 | data += tocopy; | |
1026 | blkidx++; | |
1027 | } | |
1028 | return len; | |
1029 | } | |
1030 | ||
1031 | /* Write to quotafile */ | |
1032 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1033 | const char *data, size_t len, loff_t off) | |
1034 | { | |
1035 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1036 | struct address_space *mapping = inode->i_mapping; | |
1037 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1038 | int offset = off & (sb->s_blocksize - 1); | |
1039 | size_t towrite = len; | |
1040 | struct page *page; | |
1041 | char *kaddr; | |
1042 | int err = 0; | |
1043 | int tocopy; | |
1044 | ||
1045 | while (towrite > 0) { | |
1046 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1047 | towrite); | |
1048 | ||
1049 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, | |
1050 | &page, NULL); | |
1051 | if (unlikely(err)) | |
1052 | break; | |
1053 | ||
1054 | kaddr = kmap_atomic(page); | |
1055 | memcpy(kaddr + offset, data, tocopy); | |
1056 | kunmap_atomic(kaddr); | |
1057 | flush_dcache_page(page); | |
1058 | ||
1059 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1060 | page, NULL); | |
1061 | offset = 0; | |
1062 | towrite -= tocopy; | |
1063 | off += tocopy; | |
1064 | data += tocopy; | |
1065 | cond_resched(); | |
1066 | } | |
1067 | ||
1068 | if (len == towrite) | |
1069 | return err; | |
1070 | inode->i_version++; | |
1071 | inode->i_mtime = inode->i_ctime = current_time(inode); | |
1072 | f2fs_mark_inode_dirty_sync(inode, false); | |
1073 | return len - towrite; | |
1074 | } | |
1075 | ||
1076 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1077 | { | |
1078 | return F2FS_I(inode)->i_dquot; | |
1079 | } | |
1080 | ||
1081 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1082 | { | |
1083 | return &F2FS_I(inode)->i_reserved_quota; | |
1084 | } | |
1085 | ||
1086 | static int f2fs_quota_sync(struct super_block *sb, int type) | |
1087 | { | |
1088 | struct quota_info *dqopt = sb_dqopt(sb); | |
1089 | int cnt; | |
1090 | int ret; | |
1091 | ||
1092 | ret = dquot_writeback_dquots(sb, type); | |
1093 | if (ret) | |
1094 | return ret; | |
1095 | ||
1096 | /* | |
1097 | * Now when everything is written we can discard the pagecache so | |
1098 | * that userspace sees the changes. | |
1099 | */ | |
1100 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1101 | if (type != -1 && cnt != type) | |
1102 | continue; | |
1103 | if (!sb_has_quota_active(sb, cnt)) | |
1104 | continue; | |
1105 | ||
1106 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1107 | if (ret) | |
1108 | return ret; | |
1109 | ||
1110 | inode_lock(dqopt->files[cnt]); | |
1111 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1112 | inode_unlock(dqopt->files[cnt]); | |
1113 | } | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1118 | const struct path *path) | |
1119 | { | |
1120 | struct inode *inode; | |
1121 | int err; | |
1122 | ||
1123 | err = f2fs_quota_sync(sb, -1); | |
1124 | if (err) | |
1125 | return err; | |
1126 | ||
1127 | err = dquot_quota_on(sb, type, format_id, path); | |
1128 | if (err) | |
1129 | return err; | |
1130 | ||
1131 | inode = d_inode(path->dentry); | |
1132 | ||
1133 | inode_lock(inode); | |
1134 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1135 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1136 | S_NOATIME | S_IMMUTABLE); | |
1137 | inode_unlock(inode); | |
1138 | f2fs_mark_inode_dirty_sync(inode, false); | |
1139 | ||
1140 | return 0; | |
1141 | } | |
1142 | ||
1143 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1144 | { | |
1145 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1146 | int err; | |
1147 | ||
1148 | if (!inode || !igrab(inode)) | |
1149 | return dquot_quota_off(sb, type); | |
1150 | ||
1151 | f2fs_quota_sync(sb, -1); | |
1152 | ||
1153 | err = dquot_quota_off(sb, type); | |
1154 | if (err) | |
1155 | goto out_put; | |
1156 | ||
1157 | inode_lock(inode); | |
1158 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1159 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1160 | inode_unlock(inode); | |
1161 | f2fs_mark_inode_dirty_sync(inode, false); | |
1162 | out_put: | |
1163 | iput(inode); | |
1164 | return err; | |
1165 | } | |
1166 | ||
1167 | static void f2fs_quota_off_umount(struct super_block *sb) | |
1168 | { | |
1169 | int type; | |
1170 | ||
1171 | for (type = 0; type < MAXQUOTAS; type++) | |
1172 | f2fs_quota_off(sb, type); | |
1173 | } | |
1174 | ||
1175 | static const struct dquot_operations f2fs_quota_operations = { | |
1176 | .get_reserved_space = f2fs_get_reserved_space, | |
1177 | .write_dquot = dquot_commit, | |
1178 | .acquire_dquot = dquot_acquire, | |
1179 | .release_dquot = dquot_release, | |
1180 | .mark_dirty = dquot_mark_dquot_dirty, | |
1181 | .write_info = dquot_commit_info, | |
1182 | .alloc_dquot = dquot_alloc, | |
1183 | .destroy_dquot = dquot_destroy, | |
1184 | .get_next_id = dquot_get_next_id, | |
1185 | }; | |
1186 | ||
1187 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1188 | .quota_on = f2fs_quota_on, | |
1189 | .quota_off = f2fs_quota_off, | |
1190 | .quota_sync = f2fs_quota_sync, | |
1191 | .get_state = dquot_get_state, | |
1192 | .set_info = dquot_set_dqinfo, | |
1193 | .get_dqblk = dquot_get_dqblk, | |
1194 | .set_dqblk = dquot_set_dqblk, | |
1195 | .get_nextdqblk = dquot_get_next_dqblk, | |
1196 | }; | |
1197 | #else | |
1198 | static inline void f2fs_quota_off_umount(struct super_block *sb) | |
1199 | { | |
1200 | } | |
1201 | #endif | |
1202 | ||
aff063e2 JK |
1203 | static struct super_operations f2fs_sops = { |
1204 | .alloc_inode = f2fs_alloc_inode, | |
531ad7d5 | 1205 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1206 | .destroy_inode = f2fs_destroy_inode, |
1207 | .write_inode = f2fs_write_inode, | |
b3783873 | 1208 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1209 | .show_options = f2fs_show_options, |
0abd675e CY |
1210 | #ifdef CONFIG_QUOTA |
1211 | .quota_read = f2fs_quota_read, | |
1212 | .quota_write = f2fs_quota_write, | |
1213 | .get_dquots = f2fs_get_dquots, | |
1214 | #endif | |
aff063e2 JK |
1215 | .evict_inode = f2fs_evict_inode, |
1216 | .put_super = f2fs_put_super, | |
1217 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1218 | .freeze_fs = f2fs_freeze, |
1219 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1220 | .statfs = f2fs_statfs, |
696c018c | 1221 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1222 | }; |
1223 | ||
0b81d077 JK |
1224 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1225 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1226 | { | |
1227 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1228 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1229 | ctx, len, NULL); | |
1230 | } | |
1231 | ||
1232 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1233 | void *fs_data) | |
1234 | { | |
1235 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1236 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1237 | ctx, len, fs_data, XATTR_CREATE); | |
1238 | } | |
1239 | ||
1240 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1241 | { | |
1242 | return S_ISLNK(inode->i_mode) ? | |
1243 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1244 | } | |
1245 | ||
6f69f0ed | 1246 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1247 | .key_prefix = "f2fs:", |
0b81d077 JK |
1248 | .get_context = f2fs_get_context, |
1249 | .set_context = f2fs_set_context, | |
1250 | .is_encrypted = f2fs_encrypted_inode, | |
1251 | .empty_dir = f2fs_empty_dir, | |
1252 | .max_namelen = f2fs_max_namelen, | |
1253 | }; | |
1254 | #else | |
6f69f0ed | 1255 | static const struct fscrypt_operations f2fs_cryptops = { |
0b81d077 JK |
1256 | .is_encrypted = f2fs_encrypted_inode, |
1257 | }; | |
1258 | #endif | |
1259 | ||
aff063e2 JK |
1260 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1261 | u64 ino, u32 generation) | |
1262 | { | |
1263 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1264 | struct inode *inode; | |
1265 | ||
d6b7d4b3 | 1266 | if (check_nid_range(sbi, ino)) |
910bb12d | 1267 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1268 | |
1269 | /* | |
1270 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1271 | * However f2fs_iget currently does appropriate checks to handle stale | |
1272 | * inodes so everything is OK. | |
1273 | */ | |
1274 | inode = f2fs_iget(sb, ino); | |
1275 | if (IS_ERR(inode)) | |
1276 | return ERR_CAST(inode); | |
6bacf52f | 1277 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1278 | /* we didn't find the right inode.. */ |
1279 | iput(inode); | |
1280 | return ERR_PTR(-ESTALE); | |
1281 | } | |
1282 | return inode; | |
1283 | } | |
1284 | ||
1285 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1286 | int fh_len, int fh_type) | |
1287 | { | |
1288 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1289 | f2fs_nfs_get_inode); | |
1290 | } | |
1291 | ||
1292 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1293 | int fh_len, int fh_type) | |
1294 | { | |
1295 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1296 | f2fs_nfs_get_inode); | |
1297 | } | |
1298 | ||
1299 | static const struct export_operations f2fs_export_ops = { | |
1300 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1301 | .fh_to_parent = f2fs_fh_to_parent, | |
1302 | .get_parent = f2fs_get_parent, | |
1303 | }; | |
1304 | ||
e0afc4d6 | 1305 | static loff_t max_file_blocks(void) |
aff063e2 | 1306 | { |
7a2af766 | 1307 | loff_t result = 0; |
aff063e2 JK |
1308 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1309 | ||
7a2af766 CY |
1310 | /* |
1311 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
1312 | * F2FS_INLINE_XATTR_ADDRS), but now f2fs try to reserve more | |
1313 | * space in inode.i_addr, it will be more safe to reassign | |
1314 | * result as zero. | |
1315 | */ | |
1316 | ||
aff063e2 JK |
1317 | /* two direct node blocks */ |
1318 | result += (leaf_count * 2); | |
1319 | ||
1320 | /* two indirect node blocks */ | |
1321 | leaf_count *= NIDS_PER_BLOCK; | |
1322 | result += (leaf_count * 2); | |
1323 | ||
1324 | /* one double indirect node block */ | |
1325 | leaf_count *= NIDS_PER_BLOCK; | |
1326 | result += leaf_count; | |
1327 | ||
aff063e2 JK |
1328 | return result; |
1329 | } | |
1330 | ||
fd694733 JK |
1331 | static int __f2fs_commit_super(struct buffer_head *bh, |
1332 | struct f2fs_super_block *super) | |
1333 | { | |
1334 | lock_buffer(bh); | |
1335 | if (super) | |
1336 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
1337 | set_buffer_uptodate(bh); | |
1338 | set_buffer_dirty(bh); | |
1339 | unlock_buffer(bh); | |
1340 | ||
1341 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1342 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1343 | } |
1344 | ||
df728b0f | 1345 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1346 | struct buffer_head *bh) |
9a59b62f | 1347 | { |
fd694733 JK |
1348 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1349 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1350 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1351 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1352 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1353 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1354 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1355 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1356 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1357 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1358 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1359 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1360 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1361 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1362 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1363 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1364 | u64 main_end_blkaddr = main_blkaddr + |
1365 | (segment_count_main << log_blocks_per_seg); | |
1366 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1367 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1368 | |
1369 | if (segment0_blkaddr != cp_blkaddr) { | |
1370 | f2fs_msg(sb, KERN_INFO, | |
1371 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1372 | segment0_blkaddr, cp_blkaddr); | |
1373 | return true; | |
1374 | } | |
1375 | ||
1376 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1377 | sit_blkaddr) { | |
1378 | f2fs_msg(sb, KERN_INFO, | |
1379 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1380 | cp_blkaddr, sit_blkaddr, | |
1381 | segment_count_ckpt << log_blocks_per_seg); | |
1382 | return true; | |
1383 | } | |
1384 | ||
1385 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1386 | nat_blkaddr) { | |
1387 | f2fs_msg(sb, KERN_INFO, | |
1388 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1389 | sit_blkaddr, nat_blkaddr, | |
1390 | segment_count_sit << log_blocks_per_seg); | |
1391 | return true; | |
1392 | } | |
1393 | ||
1394 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1395 | ssa_blkaddr) { | |
1396 | f2fs_msg(sb, KERN_INFO, | |
1397 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1398 | nat_blkaddr, ssa_blkaddr, | |
1399 | segment_count_nat << log_blocks_per_seg); | |
1400 | return true; | |
1401 | } | |
1402 | ||
1403 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
1404 | main_blkaddr) { | |
1405 | f2fs_msg(sb, KERN_INFO, | |
1406 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
1407 | ssa_blkaddr, main_blkaddr, | |
1408 | segment_count_ssa << log_blocks_per_seg); | |
1409 | return true; | |
1410 | } | |
1411 | ||
fd694733 | 1412 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 1413 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 1414 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 1415 | main_blkaddr, |
fd694733 JK |
1416 | segment0_blkaddr + |
1417 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
1418 | segment_count_main << log_blocks_per_seg); |
1419 | return true; | |
fd694733 JK |
1420 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
1421 | int err = 0; | |
1422 | char *res; | |
1423 | ||
1424 | /* fix in-memory information all the time */ | |
1425 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
1426 | segment0_blkaddr) >> log_blocks_per_seg); | |
1427 | ||
1428 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 1429 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
1430 | res = "internally"; |
1431 | } else { | |
1432 | err = __f2fs_commit_super(bh, NULL); | |
1433 | res = err ? "failed" : "done"; | |
1434 | } | |
1435 | f2fs_msg(sb, KERN_INFO, | |
1436 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
1437 | res, main_blkaddr, | |
1438 | segment0_blkaddr + | |
1439 | (segment_count << log_blocks_per_seg), | |
1440 | segment_count_main << log_blocks_per_seg); | |
1441 | if (err) | |
1442 | return true; | |
9a59b62f | 1443 | } |
9a59b62f CY |
1444 | return false; |
1445 | } | |
1446 | ||
df728b0f | 1447 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 1448 | struct buffer_head *bh) |
aff063e2 | 1449 | { |
fd694733 JK |
1450 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1451 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1452 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
1453 | unsigned int blocksize; |
1454 | ||
a07ef784 NJ |
1455 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
1456 | f2fs_msg(sb, KERN_INFO, | |
1457 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
1458 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 1459 | return 1; |
a07ef784 | 1460 | } |
aff063e2 | 1461 | |
5c9b4692 | 1462 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 1463 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 1464 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 1465 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 1466 | PAGE_SIZE); |
5c9b4692 | 1467 | return 1; |
1468 | } | |
1469 | ||
aff063e2 JK |
1470 | /* Currently, support only 4KB block size */ |
1471 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 1472 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
1473 | f2fs_msg(sb, KERN_INFO, |
1474 | "Invalid blocksize (%u), supports only 4KB\n", | |
1475 | blocksize); | |
aff063e2 | 1476 | return 1; |
a07ef784 | 1477 | } |
5c9b4692 | 1478 | |
9a59b62f CY |
1479 | /* check log blocks per segment */ |
1480 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
1481 | f2fs_msg(sb, KERN_INFO, | |
1482 | "Invalid log blocks per segment (%u)\n", | |
1483 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
1484 | return 1; | |
1485 | } | |
1486 | ||
55cf9cb6 CY |
1487 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
1488 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
1489 | F2FS_MAX_LOG_SECTOR_SIZE || | |
1490 | le32_to_cpu(raw_super->log_sectorsize) < | |
1491 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
1492 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
1493 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1494 | return 1; |
a07ef784 | 1495 | } |
55cf9cb6 CY |
1496 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
1497 | le32_to_cpu(raw_super->log_sectorsize) != | |
1498 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
1499 | f2fs_msg(sb, KERN_INFO, | |
1500 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
1501 | le32_to_cpu(raw_super->log_sectors_per_block), | |
1502 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1503 | return 1; |
a07ef784 | 1504 | } |
9a59b62f CY |
1505 | |
1506 | /* check reserved ino info */ | |
1507 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
1508 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
1509 | le32_to_cpu(raw_super->root_ino) != 3) { | |
1510 | f2fs_msg(sb, KERN_INFO, | |
1511 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
1512 | le32_to_cpu(raw_super->node_ino), | |
1513 | le32_to_cpu(raw_super->meta_ino), | |
1514 | le32_to_cpu(raw_super->root_ino)); | |
1515 | return 1; | |
1516 | } | |
1517 | ||
b9dd4618 JQ |
1518 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
1519 | f2fs_msg(sb, KERN_INFO, | |
1520 | "Invalid segment count (%u)", | |
1521 | le32_to_cpu(raw_super->segment_count)); | |
1522 | return 1; | |
1523 | } | |
1524 | ||
9a59b62f | 1525 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 1526 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
1527 | return 1; |
1528 | ||
aff063e2 JK |
1529 | return 0; |
1530 | } | |
1531 | ||
984ec63c | 1532 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
1533 | { |
1534 | unsigned int total, fsmeta; | |
577e3495 JK |
1535 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
1536 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 1537 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
1538 | unsigned int main_segs, blocks_per_seg; |
1539 | int i; | |
aff063e2 JK |
1540 | |
1541 | total = le32_to_cpu(raw_super->segment_count); | |
1542 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
1543 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
1544 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
1545 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
1546 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
1547 | ||
6bacf52f | 1548 | if (unlikely(fsmeta >= total)) |
aff063e2 | 1549 | return 1; |
577e3495 | 1550 | |
2040fce8 JK |
1551 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
1552 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
1553 | ||
1554 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
1555 | ovp_segments == 0 || reserved_segments == 0)) { | |
1556 | f2fs_msg(sbi->sb, KERN_ERR, | |
1557 | "Wrong layout: check mkfs.f2fs version"); | |
1558 | return 1; | |
1559 | } | |
1560 | ||
15d3042a JQ |
1561 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
1562 | blocks_per_seg = sbi->blocks_per_seg; | |
1563 | ||
1564 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
1565 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
1566 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
1567 | return 1; | |
1568 | } | |
1569 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
1570 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
1571 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
1572 | return 1; | |
1573 | } | |
1574 | ||
1e968fdf | 1575 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
1576 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
1577 | return 1; | |
1578 | } | |
aff063e2 JK |
1579 | return 0; |
1580 | } | |
1581 | ||
1582 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
1583 | { | |
1584 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 1585 | int i, j; |
aff063e2 JK |
1586 | |
1587 | sbi->log_sectors_per_block = | |
1588 | le32_to_cpu(raw_super->log_sectors_per_block); | |
1589 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
1590 | sbi->blocksize = 1 << sbi->log_blocksize; | |
1591 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
1592 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
1593 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
1594 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
1595 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
1596 | sbi->total_node_count = | |
1597 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
1598 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
1599 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
1600 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
1601 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 1602 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 1603 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 1604 | |
ab9fa662 | 1605 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 1606 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 1607 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 1608 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 1609 | |
35782b23 JK |
1610 | for (i = 0; i < NR_COUNT_TYPE; i++) |
1611 | atomic_set(&sbi->nr_pages[i], 0); | |
1612 | ||
687de7f1 JK |
1613 | atomic_set(&sbi->wb_sync_req, 0); |
1614 | ||
2658e50d JK |
1615 | INIT_LIST_HEAD(&sbi->s_list); |
1616 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
1617 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
1618 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
1619 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 1620 | spin_lock_init(&sbi->cp_lock); |
aff063e2 JK |
1621 | } |
1622 | ||
523be8a6 JK |
1623 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
1624 | { | |
35782b23 | 1625 | int err; |
41382ec4 | 1626 | |
513c5f37 JK |
1627 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
1628 | if (err) | |
1629 | return err; | |
1630 | ||
1631 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 1632 | GFP_KERNEL); |
523be8a6 JK |
1633 | } |
1634 | ||
178053e2 | 1635 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 1636 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 1637 | { |
3c62be17 | 1638 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
1639 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
1640 | sector_t sector = 0; | |
1641 | struct blk_zone *zones; | |
1642 | unsigned int i, nr_zones; | |
1643 | unsigned int n = 0; | |
1644 | int err = -EIO; | |
1645 | ||
1646 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
1647 | return 0; | |
1648 | ||
3c62be17 | 1649 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 1650 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 1651 | return -EINVAL; |
f99e8648 | 1652 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
1653 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
1654 | __ilog2_u32(sbi->blocks_per_blkz)) | |
1655 | return -EINVAL; | |
178053e2 | 1656 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
1657 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
1658 | sbi->log_blocks_per_blkz; | |
f99e8648 | 1659 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 1660 | FDEV(devi).nr_blkz++; |
178053e2 | 1661 | |
3c62be17 JK |
1662 | FDEV(devi).blkz_type = kmalloc(FDEV(devi).nr_blkz, GFP_KERNEL); |
1663 | if (!FDEV(devi).blkz_type) | |
178053e2 DLM |
1664 | return -ENOMEM; |
1665 | ||
1666 | #define F2FS_REPORT_NR_ZONES 4096 | |
1667 | ||
1668 | zones = kcalloc(F2FS_REPORT_NR_ZONES, sizeof(struct blk_zone), | |
1669 | GFP_KERNEL); | |
1670 | if (!zones) | |
1671 | return -ENOMEM; | |
1672 | ||
1673 | /* Get block zones type */ | |
1674 | while (zones && sector < nr_sectors) { | |
1675 | ||
1676 | nr_zones = F2FS_REPORT_NR_ZONES; | |
1677 | err = blkdev_report_zones(bdev, sector, | |
1678 | zones, &nr_zones, | |
1679 | GFP_KERNEL); | |
1680 | if (err) | |
1681 | break; | |
1682 | if (!nr_zones) { | |
1683 | err = -EIO; | |
1684 | break; | |
1685 | } | |
1686 | ||
1687 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 1688 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
1689 | sector += zones[i].len; |
1690 | n++; | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | kfree(zones); | |
1695 | ||
1696 | return err; | |
1697 | } | |
1698 | #endif | |
1699 | ||
9076a75f GZ |
1700 | /* |
1701 | * Read f2fs raw super block. | |
2b39e907 SL |
1702 | * Because we have two copies of super block, so read both of them |
1703 | * to get the first valid one. If any one of them is broken, we pass | |
1704 | * them recovery flag back to the caller. | |
9076a75f | 1705 | */ |
df728b0f | 1706 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 1707 | struct f2fs_super_block **raw_super, |
e8240f65 | 1708 | int *valid_super_block, int *recovery) |
14d7e9de | 1709 | { |
df728b0f | 1710 | struct super_block *sb = sbi->sb; |
2b39e907 | 1711 | int block; |
e8240f65 | 1712 | struct buffer_head *bh; |
fd694733 | 1713 | struct f2fs_super_block *super; |
da554e48 | 1714 | int err = 0; |
14d7e9de | 1715 | |
b39f0de2 YH |
1716 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
1717 | if (!super) | |
1718 | return -ENOMEM; | |
2b39e907 SL |
1719 | |
1720 | for (block = 0; block < 2; block++) { | |
1721 | bh = sb_bread(sb, block); | |
1722 | if (!bh) { | |
1723 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 1724 | block + 1); |
2b39e907 SL |
1725 | err = -EIO; |
1726 | continue; | |
1727 | } | |
14d7e9de | 1728 | |
2b39e907 | 1729 | /* sanity checking of raw super */ |
df728b0f | 1730 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
1731 | f2fs_msg(sb, KERN_ERR, |
1732 | "Can't find valid F2FS filesystem in %dth superblock", | |
1733 | block + 1); | |
1734 | err = -EINVAL; | |
1735 | brelse(bh); | |
1736 | continue; | |
1737 | } | |
14d7e9de | 1738 | |
2b39e907 | 1739 | if (!*raw_super) { |
fd694733 JK |
1740 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
1741 | sizeof(*super)); | |
2b39e907 SL |
1742 | *valid_super_block = block; |
1743 | *raw_super = super; | |
1744 | } | |
1745 | brelse(bh); | |
da554e48 | 1746 | } |
1747 | ||
2b39e907 SL |
1748 | /* Fail to read any one of the superblocks*/ |
1749 | if (err < 0) | |
1750 | *recovery = 1; | |
da554e48 | 1751 | |
da554e48 | 1752 | /* No valid superblock */ |
2b39e907 | 1753 | if (!*raw_super) |
b39f0de2 | 1754 | kfree(super); |
2b39e907 SL |
1755 | else |
1756 | err = 0; | |
da554e48 | 1757 | |
2b39e907 | 1758 | return err; |
14d7e9de | 1759 | } |
1760 | ||
fd694733 | 1761 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 1762 | { |
5d909cdb | 1763 | struct buffer_head *bh; |
26d815ad JK |
1764 | int err; |
1765 | ||
df728b0f JK |
1766 | if ((recover && f2fs_readonly(sbi->sb)) || |
1767 | bdev_read_only(sbi->sb->s_bdev)) { | |
1768 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 1769 | return -EROFS; |
df728b0f | 1770 | } |
f2353d7b | 1771 | |
fd694733 JK |
1772 | /* write back-up superblock first */ |
1773 | bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); | |
5d909cdb JK |
1774 | if (!bh) |
1775 | return -EIO; | |
fd694733 | 1776 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 1777 | brelse(bh); |
c5bda1c8 CY |
1778 | |
1779 | /* if we are in recovery path, skip writing valid superblock */ | |
1780 | if (recover || err) | |
5d909cdb | 1781 | return err; |
26d815ad JK |
1782 | |
1783 | /* write current valid superblock */ | |
fd694733 JK |
1784 | bh = sb_getblk(sbi->sb, sbi->valid_super_block); |
1785 | if (!bh) | |
1786 | return -EIO; | |
1787 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
1788 | brelse(bh); | |
1789 | return err; | |
26d815ad JK |
1790 | } |
1791 | ||
3c62be17 JK |
1792 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
1793 | { | |
1794 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 1795 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
1796 | int i; |
1797 | ||
7bb3a371 MS |
1798 | /* Initialize single device information */ |
1799 | if (!RDEV(0).path[0]) { | |
1800 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 1801 | return 0; |
7bb3a371 MS |
1802 | max_devices = 1; |
1803 | } | |
3c62be17 | 1804 | |
7bb3a371 MS |
1805 | /* |
1806 | * Initialize multiple devices information, or single | |
1807 | * zoned block device information. | |
1808 | */ | |
1809 | sbi->devs = kcalloc(max_devices, sizeof(struct f2fs_dev_info), | |
1810 | GFP_KERNEL); | |
1811 | if (!sbi->devs) | |
1812 | return -ENOMEM; | |
3c62be17 | 1813 | |
7bb3a371 | 1814 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 1815 | |
7bb3a371 MS |
1816 | if (i > 0 && !RDEV(i).path[0]) |
1817 | break; | |
1818 | ||
1819 | if (max_devices == 1) { | |
1820 | /* Single zoned block device mount */ | |
1821 | FDEV(0).bdev = | |
1822 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 1823 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
1824 | } else { |
1825 | /* Multi-device mount */ | |
1826 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
1827 | FDEV(i).total_segments = | |
1828 | le32_to_cpu(RDEV(i).total_segments); | |
1829 | if (i == 0) { | |
1830 | FDEV(i).start_blk = 0; | |
1831 | FDEV(i).end_blk = FDEV(i).start_blk + | |
1832 | (FDEV(i).total_segments << | |
1833 | sbi->log_blocks_per_seg) - 1 + | |
1834 | le32_to_cpu(raw_super->segment0_blkaddr); | |
1835 | } else { | |
1836 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
1837 | FDEV(i).end_blk = FDEV(i).start_blk + | |
1838 | (FDEV(i).total_segments << | |
1839 | sbi->log_blocks_per_seg) - 1; | |
1840 | } | |
1841 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 1842 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 1843 | } |
3c62be17 JK |
1844 | if (IS_ERR(FDEV(i).bdev)) |
1845 | return PTR_ERR(FDEV(i).bdev); | |
1846 | ||
1847 | /* to release errored devices */ | |
1848 | sbi->s_ndevs = i + 1; | |
1849 | ||
1850 | #ifdef CONFIG_BLK_DEV_ZONED | |
1851 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
1852 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
1853 | f2fs_msg(sbi->sb, KERN_ERR, | |
1854 | "Zoned block device feature not enabled\n"); | |
1855 | return -EINVAL; | |
1856 | } | |
1857 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
1858 | if (init_blkz_info(sbi, i)) { | |
1859 | f2fs_msg(sbi->sb, KERN_ERR, | |
1860 | "Failed to initialize F2FS blkzone information"); | |
1861 | return -EINVAL; | |
1862 | } | |
7bb3a371 MS |
1863 | if (max_devices == 1) |
1864 | break; | |
3c62be17 JK |
1865 | f2fs_msg(sbi->sb, KERN_INFO, |
1866 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
1867 | i, FDEV(i).path, | |
1868 | FDEV(i).total_segments, | |
1869 | FDEV(i).start_blk, FDEV(i).end_blk, | |
1870 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
1871 | "Host-aware" : "Host-managed"); | |
1872 | continue; | |
1873 | } | |
1874 | #endif | |
1875 | f2fs_msg(sbi->sb, KERN_INFO, | |
1876 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
1877 | i, FDEV(i).path, | |
1878 | FDEV(i).total_segments, | |
1879 | FDEV(i).start_blk, FDEV(i).end_blk); | |
1880 | } | |
0a595eba JK |
1881 | f2fs_msg(sbi->sb, KERN_INFO, |
1882 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
1883 | return 0; |
1884 | } | |
1885 | ||
aff063e2 JK |
1886 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
1887 | { | |
1888 | struct f2fs_sb_info *sbi; | |
da554e48 | 1889 | struct f2fs_super_block *raw_super; |
aff063e2 | 1890 | struct inode *root; |
99e3e858 | 1891 | int err; |
2adc3505 | 1892 | bool retry = true, need_fsck = false; |
dabc4a5c | 1893 | char *options = NULL; |
e8240f65 | 1894 | int recovery, i, valid_super_block; |
8f1dbbbb | 1895 | struct curseg_info *seg_i; |
aff063e2 | 1896 | |
ed2e621a | 1897 | try_onemore: |
da554e48 | 1898 | err = -EINVAL; |
1899 | raw_super = NULL; | |
e8240f65 | 1900 | valid_super_block = -1; |
da554e48 | 1901 | recovery = 0; |
1902 | ||
aff063e2 JK |
1903 | /* allocate memory for f2fs-specific super block info */ |
1904 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
1905 | if (!sbi) | |
1906 | return -ENOMEM; | |
1907 | ||
df728b0f JK |
1908 | sbi->sb = sb; |
1909 | ||
43b6573b KM |
1910 | /* Load the checksum driver */ |
1911 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
1912 | if (IS_ERR(sbi->s_chksum_driver)) { | |
1913 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
1914 | err = PTR_ERR(sbi->s_chksum_driver); | |
1915 | sbi->s_chksum_driver = NULL; | |
1916 | goto free_sbi; | |
1917 | } | |
1918 | ||
ff9234ad | 1919 | /* set a block size */ |
6bacf52f | 1920 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 1921 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 1922 | goto free_sbi; |
a07ef784 | 1923 | } |
aff063e2 | 1924 | |
df728b0f | 1925 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 1926 | &recovery); |
9076a75f GZ |
1927 | if (err) |
1928 | goto free_sbi; | |
1929 | ||
5fb08372 | 1930 | sb->s_fs_info = sbi; |
52763a4b JK |
1931 | sbi->raw_super = raw_super; |
1932 | ||
d1b959c8 DLM |
1933 | /* |
1934 | * The BLKZONED feature indicates that the drive was formatted with | |
1935 | * zone alignment optimization. This is optional for host-aware | |
1936 | * devices, but mandatory for host-managed zoned block devices. | |
1937 | */ | |
1938 | #ifndef CONFIG_BLK_DEV_ZONED | |
1939 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
1940 | f2fs_msg(sb, KERN_ERR, | |
1941 | "Zoned block device support is not enabled\n"); | |
1727f317 | 1942 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
1943 | goto free_sb_buf; |
1944 | } | |
d1b959c8 | 1945 | #endif |
498c5e9f | 1946 | default_options(sbi); |
aff063e2 | 1947 | /* parse mount options */ |
dabc4a5c JK |
1948 | options = kstrdup((const char *)data, GFP_KERNEL); |
1949 | if (data && !options) { | |
1950 | err = -ENOMEM; | |
aff063e2 | 1951 | goto free_sb_buf; |
dabc4a5c JK |
1952 | } |
1953 | ||
1954 | err = parse_options(sb, options); | |
1955 | if (err) | |
1956 | goto free_options; | |
aff063e2 | 1957 | |
e0afc4d6 CY |
1958 | sbi->max_file_blocks = max_file_blocks(); |
1959 | sb->s_maxbytes = sbi->max_file_blocks << | |
1960 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
1961 | sb->s_max_links = F2FS_LINK_MAX; |
1962 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
1963 | ||
0abd675e CY |
1964 | #ifdef CONFIG_QUOTA |
1965 | sb->dq_op = &f2fs_quota_operations; | |
1966 | sb->s_qcop = &f2fs_quotactl_ops; | |
1967 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP; | |
1968 | #endif | |
1969 | ||
aff063e2 | 1970 | sb->s_op = &f2fs_sops; |
0b81d077 | 1971 | sb->s_cop = &f2fs_cryptops; |
aff063e2 JK |
1972 | sb->s_xattr = f2fs_xattr_handlers; |
1973 | sb->s_export_op = &f2fs_export_ops; | |
1974 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 JK |
1975 | sb->s_time_gran = 1; |
1976 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | | |
1977 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); | |
85787090 | 1978 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
aff063e2 JK |
1979 | |
1980 | /* init f2fs-specific super block info */ | |
e8240f65 | 1981 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 1982 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 1983 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 1984 | init_rwsem(&sbi->node_write); |
59c9081b | 1985 | init_rwsem(&sbi->node_change); |
315df839 JK |
1986 | |
1987 | /* disallow all the data/node/meta page writes */ | |
1988 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 1989 | spin_lock_init(&sbi->stat_lock); |
971767ca | 1990 | |
458e6197 | 1991 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
1992 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
1993 | int j; | |
1994 | ||
1995 | sbi->write_io[i] = kmalloc(n * sizeof(struct f2fs_bio_info), | |
1996 | GFP_KERNEL); | |
b63def91 CJ |
1997 | if (!sbi->write_io[i]) { |
1998 | err = -ENOMEM; | |
a912b54d | 1999 | goto free_options; |
b63def91 | 2000 | } |
a912b54d JK |
2001 | |
2002 | for (j = HOT; j < n; j++) { | |
2003 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2004 | sbi->write_io[i][j].sbi = sbi; | |
2005 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2006 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2007 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2008 | } |
458e6197 | 2009 | } |
971767ca | 2010 | |
b873b798 | 2011 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2012 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2013 | init_sb_info(sbi); |
2014 | ||
523be8a6 JK |
2015 | err = init_percpu_info(sbi); |
2016 | if (err) | |
2017 | goto free_options; | |
2018 | ||
0a595eba JK |
2019 | if (F2FS_IO_SIZE(sbi) > 1) { |
2020 | sbi->write_io_dummy = | |
a3ebfe4f | 2021 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2022 | if (!sbi->write_io_dummy) { |
2023 | err = -ENOMEM; | |
0a595eba | 2024 | goto free_options; |
1727f317 | 2025 | } |
0a595eba JK |
2026 | } |
2027 | ||
aff063e2 JK |
2028 | /* get an inode for meta space */ |
2029 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2030 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2031 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2032 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2033 | goto free_io_dummy; |
aff063e2 JK |
2034 | } |
2035 | ||
2036 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2037 | if (err) { |
2038 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2039 | goto free_meta_inode; |
a07ef784 | 2040 | } |
aff063e2 | 2041 | |
3c62be17 JK |
2042 | /* Initialize device list */ |
2043 | err = f2fs_scan_devices(sbi); | |
2044 | if (err) { | |
2045 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2046 | goto free_devices; | |
2047 | } | |
2048 | ||
aff063e2 JK |
2049 | sbi->total_valid_node_count = |
2050 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2051 | percpu_counter_set(&sbi->total_valid_inode_count, |
2052 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2053 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2054 | sbi->total_valid_block_count = | |
2055 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2056 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2057 | sbi->reserved_blocks = 0; |
41382ec4 | 2058 | |
c227f912 CY |
2059 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2060 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2061 | spin_lock_init(&sbi->inode_lock[i]); | |
2062 | } | |
aff063e2 | 2063 | |
1dcc336b CY |
2064 | init_extent_cache_info(sbi); |
2065 | ||
6451e041 | 2066 | init_ino_entry_info(sbi); |
aff063e2 JK |
2067 | |
2068 | /* setup f2fs internal modules */ | |
2069 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2070 | if (err) { |
2071 | f2fs_msg(sb, KERN_ERR, | |
2072 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2073 | goto free_sm; |
a07ef784 | 2074 | } |
aff063e2 | 2075 | err = build_node_manager(sbi); |
a07ef784 NJ |
2076 | if (err) { |
2077 | f2fs_msg(sb, KERN_ERR, | |
2078 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2079 | goto free_nm; |
a07ef784 | 2080 | } |
aff063e2 | 2081 | |
8f1dbbbb SL |
2082 | /* For write statistics */ |
2083 | if (sb->s_bdev->bd_part) | |
2084 | sbi->sectors_written_start = | |
2085 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2086 | ||
2087 | /* Read accumulated write IO statistics if exists */ | |
2088 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2089 | if (__exist_node_summaries(sbi)) | |
2090 | sbi->kbytes_written = | |
b2dde6fc | 2091 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2092 | |
aff063e2 JK |
2093 | build_gc_manager(sbi); |
2094 | ||
2095 | /* get an inode for node space */ | |
2096 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2097 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2098 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2099 | err = PTR_ERR(sbi->node_inode); |
2100 | goto free_nm; | |
2101 | } | |
2102 | ||
2658e50d JK |
2103 | f2fs_join_shrinker(sbi); |
2104 | ||
aa51d08a JK |
2105 | err = f2fs_build_stats(sbi); |
2106 | if (err) | |
2107 | goto free_nm; | |
2108 | ||
aff063e2 | 2109 | /* if there are nt orphan nodes free them */ |
8c14bfad CY |
2110 | err = recover_orphan_inodes(sbi); |
2111 | if (err) | |
2112 | goto free_node_inode; | |
aff063e2 JK |
2113 | |
2114 | /* read root inode and dentry */ | |
2115 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2116 | if (IS_ERR(root)) { | |
a07ef784 | 2117 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 JK |
2118 | err = PTR_ERR(root); |
2119 | goto free_node_inode; | |
2120 | } | |
8f99a946 | 2121 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2122 | iput(root); |
8f99a946 | 2123 | err = -EINVAL; |
9d847950 | 2124 | goto free_node_inode; |
8f99a946 | 2125 | } |
aff063e2 JK |
2126 | |
2127 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2128 | if (!sb->s_root) { | |
2129 | err = -ENOMEM; | |
2130 | goto free_root_inode; | |
2131 | } | |
2132 | ||
a398101a | 2133 | err = f2fs_init_sysfs(sbi); |
b59d0bae | 2134 | if (err) |
a398101a | 2135 | goto free_root_inode; |
b59d0bae | 2136 | |
6437d1b0 JK |
2137 | /* recover fsynced data */ |
2138 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2139 | /* |
2140 | * mount should be failed, when device has readonly mode, and | |
2141 | * previous checkpoint was not done by clean system shutdown. | |
2142 | */ | |
2143 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2144 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2145 | err = -EROFS; |
a398101a | 2146 | goto free_sysfs; |
081d78c2 | 2147 | } |
2adc3505 CY |
2148 | |
2149 | if (need_fsck) | |
2150 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2151 | ||
a468f0ef JK |
2152 | if (!retry) |
2153 | goto skip_recovery; | |
2154 | ||
6781eabb JK |
2155 | err = recover_fsync_data(sbi, false); |
2156 | if (err < 0) { | |
2adc3505 | 2157 | need_fsck = true; |
6437d1b0 | 2158 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2159 | "Cannot recover all fsync data errno=%d", err); |
a398101a | 2160 | goto free_sysfs; |
ed2e621a | 2161 | } |
6781eabb JK |
2162 | } else { |
2163 | err = recover_fsync_data(sbi, true); | |
2164 | ||
2165 | if (!f2fs_readonly(sb) && err > 0) { | |
2166 | err = -EINVAL; | |
2167 | f2fs_msg(sb, KERN_ERR, | |
2168 | "Need to recover fsync data"); | |
a398101a | 2169 | goto free_sysfs; |
6781eabb | 2170 | } |
6437d1b0 | 2171 | } |
a468f0ef | 2172 | skip_recovery: |
315df839 JK |
2173 | /* recover_fsync_data() cleared this already */ |
2174 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2175 | |
6437d1b0 JK |
2176 | /* |
2177 | * If filesystem is not mounted as read-only then | |
2178 | * do start the gc_thread. | |
2179 | */ | |
6c029932 | 2180 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2181 | /* After POR, we can run background GC thread.*/ |
2182 | err = start_gc_thread(sbi); | |
2183 | if (err) | |
a398101a | 2184 | goto free_sysfs; |
6437d1b0 | 2185 | } |
dabc4a5c | 2186 | kfree(options); |
da554e48 | 2187 | |
2188 | /* recover broken superblock */ | |
f2353d7b | 2189 | if (recovery) { |
41214b3c CY |
2190 | err = f2fs_commit_super(sbi, true); |
2191 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2192 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2193 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2194 | } |
2195 | ||
1200abb2 JK |
2196 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2197 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2198 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2199 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2200 | return 0; |
6437d1b0 | 2201 | |
a398101a | 2202 | free_sysfs: |
0f18b462 | 2203 | f2fs_sync_inode_meta(sbi); |
a398101a | 2204 | f2fs_exit_sysfs(sbi); |
aff063e2 JK |
2205 | free_root_inode: |
2206 | dput(sb->s_root); | |
2207 | sb->s_root = NULL; | |
2208 | free_node_inode: | |
bb5dada7 | 2209 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
2658e50d | 2210 | mutex_lock(&sbi->umount_mutex); |
d41065e2 | 2211 | release_ino_entry(sbi, true); |
2658e50d | 2212 | f2fs_leave_shrinker(sbi); |
09922800 JK |
2213 | /* |
2214 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2215 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2216 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2217 | * falls into an infinite loop in sync_meta_pages(). | |
2218 | */ | |
2219 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
aff063e2 | 2220 | iput(sbi->node_inode); |
2658e50d | 2221 | mutex_unlock(&sbi->umount_mutex); |
aa51d08a | 2222 | f2fs_destroy_stats(sbi); |
aff063e2 JK |
2223 | free_nm: |
2224 | destroy_node_manager(sbi); | |
2225 | free_sm: | |
2226 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2227 | free_devices: |
2228 | destroy_device_list(sbi); | |
aff063e2 JK |
2229 | kfree(sbi->ckpt); |
2230 | free_meta_inode: | |
2231 | make_bad_inode(sbi->meta_inode); | |
2232 | iput(sbi->meta_inode); | |
0a595eba JK |
2233 | free_io_dummy: |
2234 | mempool_destroy(sbi->write_io_dummy); | |
dabc4a5c | 2235 | free_options: |
a912b54d JK |
2236 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2237 | kfree(sbi->write_io[i]); | |
523be8a6 | 2238 | destroy_percpu_info(sbi); |
dabc4a5c | 2239 | kfree(options); |
aff063e2 | 2240 | free_sb_buf: |
b39f0de2 | 2241 | kfree(raw_super); |
aff063e2 | 2242 | free_sbi: |
43b6573b KM |
2243 | if (sbi->s_chksum_driver) |
2244 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2245 | kfree(sbi); |
ed2e621a JK |
2246 | |
2247 | /* give only one another chance */ | |
2248 | if (retry) { | |
9df47ba7 | 2249 | retry = false; |
ed2e621a JK |
2250 | shrink_dcache_sb(sb); |
2251 | goto try_onemore; | |
2252 | } | |
aff063e2 JK |
2253 | return err; |
2254 | } | |
2255 | ||
2256 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2257 | const char *dev_name, void *data) | |
2258 | { | |
2259 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2260 | } | |
2261 | ||
30a5537f JK |
2262 | static void kill_f2fs_super(struct super_block *sb) |
2263 | { | |
cce13252 | 2264 | if (sb->s_root) { |
caf0047e | 2265 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2266 | stop_gc_thread(F2FS_SB(sb)); |
2267 | stop_discard_thread(F2FS_SB(sb)); | |
2268 | } | |
30a5537f JK |
2269 | kill_block_super(sb); |
2270 | } | |
2271 | ||
aff063e2 JK |
2272 | static struct file_system_type f2fs_fs_type = { |
2273 | .owner = THIS_MODULE, | |
2274 | .name = "f2fs", | |
2275 | .mount = f2fs_mount, | |
30a5537f | 2276 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2277 | .fs_flags = FS_REQUIRES_DEV, |
2278 | }; | |
7f78e035 | 2279 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2280 | |
6e6093a8 | 2281 | static int __init init_inodecache(void) |
aff063e2 | 2282 | { |
5d097056 VD |
2283 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2284 | sizeof(struct f2fs_inode_info), 0, | |
2285 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2286 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2287 | return -ENOMEM; |
2288 | return 0; | |
2289 | } | |
2290 | ||
2291 | static void destroy_inodecache(void) | |
2292 | { | |
2293 | /* | |
2294 | * Make sure all delayed rcu free inodes are flushed before we | |
2295 | * destroy cache. | |
2296 | */ | |
2297 | rcu_barrier(); | |
2298 | kmem_cache_destroy(f2fs_inode_cachep); | |
2299 | } | |
2300 | ||
2301 | static int __init init_f2fs_fs(void) | |
2302 | { | |
2303 | int err; | |
2304 | ||
c0508650 JK |
2305 | f2fs_build_trace_ios(); |
2306 | ||
aff063e2 JK |
2307 | err = init_inodecache(); |
2308 | if (err) | |
2309 | goto fail; | |
2310 | err = create_node_manager_caches(); | |
2311 | if (err) | |
9890ff3f | 2312 | goto free_inodecache; |
7fd9e544 | 2313 | err = create_segment_manager_caches(); |
aff063e2 | 2314 | if (err) |
9890ff3f | 2315 | goto free_node_manager_caches; |
aff063e2 JK |
2316 | err = create_checkpoint_caches(); |
2317 | if (err) | |
06292073 | 2318 | goto free_segment_manager_caches; |
1dcc336b CY |
2319 | err = create_extent_cache(); |
2320 | if (err) | |
2321 | goto free_checkpoint_caches; | |
a398101a CY |
2322 | err = f2fs_register_sysfs(); |
2323 | if (err) | |
1dcc336b | 2324 | goto free_extent_cache; |
2658e50d | 2325 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 2326 | if (err) |
a398101a | 2327 | goto free_sysfs; |
2658e50d JK |
2328 | err = register_filesystem(&f2fs_fs_type); |
2329 | if (err) | |
2330 | goto free_shrinker; | |
787c7b8c CY |
2331 | err = f2fs_create_root_stats(); |
2332 | if (err) | |
2333 | goto free_filesystem; | |
9890ff3f ZH |
2334 | return 0; |
2335 | ||
787c7b8c CY |
2336 | free_filesystem: |
2337 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
2338 | free_shrinker: |
2339 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a CY |
2340 | free_sysfs: |
2341 | f2fs_unregister_sysfs(); | |
1dcc336b CY |
2342 | free_extent_cache: |
2343 | destroy_extent_cache(); | |
9890ff3f ZH |
2344 | free_checkpoint_caches: |
2345 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
2346 | free_segment_manager_caches: |
2347 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
2348 | free_node_manager_caches: |
2349 | destroy_node_manager_caches(); | |
2350 | free_inodecache: | |
2351 | destroy_inodecache(); | |
aff063e2 JK |
2352 | fail: |
2353 | return err; | |
2354 | } | |
2355 | ||
2356 | static void __exit exit_f2fs_fs(void) | |
2357 | { | |
4589d25d | 2358 | f2fs_destroy_root_stats(); |
aff063e2 | 2359 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 2360 | unregister_shrinker(&f2fs_shrinker_info); |
a398101a | 2361 | f2fs_unregister_sysfs(); |
fdf6c8be | 2362 | destroy_extent_cache(); |
aff063e2 | 2363 | destroy_checkpoint_caches(); |
5dcd8a71 | 2364 | destroy_segment_manager_caches(); |
aff063e2 JK |
2365 | destroy_node_manager_caches(); |
2366 | destroy_inodecache(); | |
351f4fba | 2367 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
2368 | } |
2369 | ||
2370 | module_init(init_f2fs_fs) | |
2371 | module_exit(exit_f2fs_fs) | |
2372 | ||
2373 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
2374 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
2375 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 2376 |