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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, | |
5c57132e | 112 | Opt_prjquota, |
aff063e2 JK |
113 | Opt_err, |
114 | }; | |
115 | ||
116 | static match_table_t f2fs_tokens = { | |
696c018c | 117 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 118 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 119 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 120 | {Opt_discard, "discard"}, |
64058be9 | 121 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 122 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 123 | {Opt_heap, "heap"}, |
4058c511 | 124 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 125 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 126 | {Opt_acl, "acl"}, |
aff063e2 JK |
127 | {Opt_noacl, "noacl"}, |
128 | {Opt_active_logs, "active_logs=%u"}, | |
129 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 130 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 131 | {Opt_noinline_xattr, "noinline_xattr"}, |
8274de77 | 132 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 133 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 134 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 135 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 136 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 137 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 138 | {Opt_fastboot, "fastboot"}, |
89672159 | 139 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 140 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 141 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 142 | {Opt_data_flush, "data_flush"}, |
36abef4e | 143 | {Opt_mode, "mode=%s"}, |
ec91538d | 144 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 145 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
146 | {Opt_lazytime, "lazytime"}, |
147 | {Opt_nolazytime, "nolazytime"}, | |
0abd675e CY |
148 | {Opt_usrquota, "usrquota"}, |
149 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 150 | {Opt_prjquota, "prjquota"}, |
aff063e2 JK |
151 | {Opt_err, NULL}, |
152 | }; | |
153 | ||
a07ef784 NJ |
154 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
155 | { | |
156 | struct va_format vaf; | |
157 | va_list args; | |
158 | ||
159 | va_start(args, fmt); | |
160 | vaf.fmt = fmt; | |
161 | vaf.va = &args; | |
162 | printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); | |
163 | va_end(args); | |
164 | } | |
165 | ||
aff063e2 JK |
166 | static void init_once(void *foo) |
167 | { | |
168 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
169 | ||
aff063e2 JK |
170 | inode_init_once(&fi->vfs_inode); |
171 | } | |
172 | ||
696c018c NJ |
173 | static int parse_options(struct super_block *sb, char *options) |
174 | { | |
175 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 176 | struct request_queue *q; |
696c018c NJ |
177 | substring_t args[MAX_OPT_ARGS]; |
178 | char *p, *name; | |
179 | int arg = 0; | |
180 | ||
181 | if (!options) | |
182 | return 0; | |
183 | ||
184 | while ((p = strsep(&options, ",")) != NULL) { | |
185 | int token; | |
186 | if (!*p) | |
187 | continue; | |
188 | /* | |
189 | * Initialize args struct so we know whether arg was | |
190 | * found; some options take optional arguments. | |
191 | */ | |
192 | args[0].to = args[0].from = NULL; | |
193 | token = match_token(p, f2fs_tokens, args); | |
194 | ||
195 | switch (token) { | |
196 | case Opt_gc_background: | |
197 | name = match_strdup(&args[0]); | |
198 | ||
199 | if (!name) | |
200 | return -ENOMEM; | |
6aefd93b | 201 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 202 | set_opt(sbi, BG_GC); |
6aefd93b JK |
203 | clear_opt(sbi, FORCE_FG_GC); |
204 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 205 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
206 | clear_opt(sbi, FORCE_FG_GC); |
207 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
208 | set_opt(sbi, BG_GC); | |
209 | set_opt(sbi, FORCE_FG_GC); | |
210 | } else { | |
696c018c NJ |
211 | kfree(name); |
212 | return -EINVAL; | |
213 | } | |
214 | kfree(name); | |
215 | break; | |
216 | case Opt_disable_roll_forward: | |
217 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
218 | break; | |
2d834bf9 JK |
219 | case Opt_norecovery: |
220 | /* this option mounts f2fs with ro */ | |
221 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
222 | if (!f2fs_readonly(sb)) | |
223 | return -EINVAL; | |
224 | break; | |
696c018c | 225 | case Opt_discard: |
09d54cdd CY |
226 | q = bdev_get_queue(sb->s_bdev); |
227 | if (blk_queue_discard(q)) { | |
228 | set_opt(sbi, DISCARD); | |
0ab02998 | 229 | } else if (!f2fs_sb_mounted_blkzoned(sb)) { |
09d54cdd CY |
230 | f2fs_msg(sb, KERN_WARNING, |
231 | "mounting with \"discard\" option, but " | |
232 | "the device does not support discard"); | |
233 | } | |
696c018c | 234 | break; |
64058be9 | 235 | case Opt_nodiscard: |
96ba2dec DLM |
236 | if (f2fs_sb_mounted_blkzoned(sb)) { |
237 | f2fs_msg(sb, KERN_WARNING, | |
238 | "discard is required for zoned block devices"); | |
239 | return -EINVAL; | |
240 | } | |
64058be9 | 241 | clear_opt(sbi, DISCARD); |
487df616 | 242 | break; |
696c018c NJ |
243 | case Opt_noheap: |
244 | set_opt(sbi, NOHEAP); | |
245 | break; | |
7a20b8a6 JK |
246 | case Opt_heap: |
247 | clear_opt(sbi, NOHEAP); | |
248 | break; | |
696c018c | 249 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
250 | case Opt_user_xattr: |
251 | set_opt(sbi, XATTR_USER); | |
252 | break; | |
696c018c NJ |
253 | case Opt_nouser_xattr: |
254 | clear_opt(sbi, XATTR_USER); | |
255 | break; | |
444c580f JK |
256 | case Opt_inline_xattr: |
257 | set_opt(sbi, INLINE_XATTR); | |
258 | break; | |
23cf7212 CY |
259 | case Opt_noinline_xattr: |
260 | clear_opt(sbi, INLINE_XATTR); | |
261 | break; | |
696c018c | 262 | #else |
4058c511 KA |
263 | case Opt_user_xattr: |
264 | f2fs_msg(sb, KERN_INFO, | |
265 | "user_xattr options not supported"); | |
266 | break; | |
696c018c NJ |
267 | case Opt_nouser_xattr: |
268 | f2fs_msg(sb, KERN_INFO, | |
269 | "nouser_xattr options not supported"); | |
270 | break; | |
444c580f JK |
271 | case Opt_inline_xattr: |
272 | f2fs_msg(sb, KERN_INFO, | |
273 | "inline_xattr options not supported"); | |
274 | break; | |
23cf7212 CY |
275 | case Opt_noinline_xattr: |
276 | f2fs_msg(sb, KERN_INFO, | |
277 | "noinline_xattr options not supported"); | |
278 | break; | |
696c018c NJ |
279 | #endif |
280 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
281 | case Opt_acl: |
282 | set_opt(sbi, POSIX_ACL); | |
283 | break; | |
696c018c NJ |
284 | case Opt_noacl: |
285 | clear_opt(sbi, POSIX_ACL); | |
286 | break; | |
287 | #else | |
4058c511 KA |
288 | case Opt_acl: |
289 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
290 | break; | |
696c018c NJ |
291 | case Opt_noacl: |
292 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
293 | break; | |
294 | #endif | |
295 | case Opt_active_logs: | |
296 | if (args->from && match_int(args, &arg)) | |
297 | return -EINVAL; | |
298 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
299 | return -EINVAL; | |
300 | sbi->active_logs = arg; | |
301 | break; | |
302 | case Opt_disable_ext_identify: | |
303 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
304 | break; | |
8274de77 HL |
305 | case Opt_inline_data: |
306 | set_opt(sbi, INLINE_DATA); | |
307 | break; | |
5efd3c6f CY |
308 | case Opt_inline_dentry: |
309 | set_opt(sbi, INLINE_DENTRY); | |
310 | break; | |
97c1794a CY |
311 | case Opt_noinline_dentry: |
312 | clear_opt(sbi, INLINE_DENTRY); | |
313 | break; | |
6b4afdd7 JK |
314 | case Opt_flush_merge: |
315 | set_opt(sbi, FLUSH_MERGE); | |
316 | break; | |
69e9e427 JK |
317 | case Opt_noflush_merge: |
318 | clear_opt(sbi, FLUSH_MERGE); | |
319 | break; | |
0f7b2abd JK |
320 | case Opt_nobarrier: |
321 | set_opt(sbi, NOBARRIER); | |
322 | break; | |
d5053a34 JK |
323 | case Opt_fastboot: |
324 | set_opt(sbi, FASTBOOT); | |
325 | break; | |
89672159 CY |
326 | case Opt_extent_cache: |
327 | set_opt(sbi, EXTENT_CACHE); | |
328 | break; | |
7daaea25 JK |
329 | case Opt_noextent_cache: |
330 | clear_opt(sbi, EXTENT_CACHE); | |
331 | break; | |
75342797 WL |
332 | case Opt_noinline_data: |
333 | clear_opt(sbi, INLINE_DATA); | |
334 | break; | |
343f40f0 CY |
335 | case Opt_data_flush: |
336 | set_opt(sbi, DATA_FLUSH); | |
337 | break; | |
36abef4e JK |
338 | case Opt_mode: |
339 | name = match_strdup(&args[0]); | |
340 | ||
341 | if (!name) | |
342 | return -ENOMEM; | |
343 | if (strlen(name) == 8 && | |
344 | !strncmp(name, "adaptive", 8)) { | |
3adc57e9 DLM |
345 | if (f2fs_sb_mounted_blkzoned(sb)) { |
346 | f2fs_msg(sb, KERN_WARNING, | |
347 | "adaptive mode is not allowed with " | |
348 | "zoned block device feature"); | |
349 | kfree(name); | |
350 | return -EINVAL; | |
351 | } | |
52763a4b | 352 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
353 | } else if (strlen(name) == 3 && |
354 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 355 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
356 | } else { |
357 | kfree(name); | |
358 | return -EINVAL; | |
359 | } | |
360 | kfree(name); | |
361 | break; | |
ec91538d JK |
362 | case Opt_io_size_bits: |
363 | if (args->from && match_int(args, &arg)) | |
364 | return -EINVAL; | |
365 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
366 | f2fs_msg(sb, KERN_WARNING, | |
367 | "Not support %d, larger than %d", | |
368 | 1 << arg, BIO_MAX_PAGES); | |
369 | return -EINVAL; | |
370 | } | |
371 | sbi->write_io_size_bits = arg; | |
372 | break; | |
73faec4d JK |
373 | case Opt_fault_injection: |
374 | if (args->from && match_int(args, &arg)) | |
375 | return -EINVAL; | |
376 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 377 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 378 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
379 | #else |
380 | f2fs_msg(sb, KERN_INFO, | |
381 | "FAULT_INJECTION was not selected"); | |
382 | #endif | |
383 | break; | |
6d94c74a JK |
384 | case Opt_lazytime: |
385 | sb->s_flags |= MS_LAZYTIME; | |
386 | break; | |
387 | case Opt_nolazytime: | |
388 | sb->s_flags &= ~MS_LAZYTIME; | |
389 | break; | |
0abd675e CY |
390 | #ifdef CONFIG_QUOTA |
391 | case Opt_usrquota: | |
392 | set_opt(sbi, USRQUOTA); | |
393 | break; | |
394 | case Opt_grpquota: | |
395 | set_opt(sbi, GRPQUOTA); | |
396 | break; | |
5c57132e CY |
397 | case Opt_prjquota: |
398 | set_opt(sbi, PRJQUOTA); | |
399 | break; | |
0abd675e CY |
400 | #else |
401 | case Opt_usrquota: | |
402 | case Opt_grpquota: | |
5c57132e | 403 | case Opt_prjquota: |
0abd675e CY |
404 | f2fs_msg(sb, KERN_INFO, |
405 | "quota operations not supported"); | |
406 | break; | |
407 | #endif | |
696c018c NJ |
408 | default: |
409 | f2fs_msg(sb, KERN_ERR, | |
410 | "Unrecognized mount option \"%s\" or missing value", | |
411 | p); | |
412 | return -EINVAL; | |
413 | } | |
414 | } | |
ec91538d JK |
415 | |
416 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
417 | f2fs_msg(sb, KERN_ERR, | |
418 | "Should set mode=lfs with %uKB-sized IO", | |
419 | F2FS_IO_SIZE_KB(sbi)); | |
420 | return -EINVAL; | |
421 | } | |
696c018c NJ |
422 | return 0; |
423 | } | |
424 | ||
aff063e2 JK |
425 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
426 | { | |
427 | struct f2fs_inode_info *fi; | |
428 | ||
a0acdfe0 | 429 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
430 | if (!fi) |
431 | return NULL; | |
432 | ||
433 | init_once((void *) fi); | |
434 | ||
434720fa | 435 | /* Initialize f2fs-specific inode info */ |
aff063e2 | 436 | fi->vfs_inode.i_version = 1; |
204706c7 | 437 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
438 | fi->i_current_depth = 1; |
439 | fi->i_advise = 0; | |
d928bfbf | 440 | init_rwsem(&fi->i_sem); |
2710fd7e | 441 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 442 | INIT_LIST_HEAD(&fi->gdirty_list); |
88b88a66 JK |
443 | INIT_LIST_HEAD(&fi->inmem_pages); |
444 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
445 | init_rwsem(&fi->dio_rwsem[READ]); |
446 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 447 | init_rwsem(&fi->i_mmap_sem); |
aff063e2 | 448 | |
0abd675e CY |
449 | #ifdef CONFIG_QUOTA |
450 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
451 | fi->i_reserved_quota = 0; | |
452 | #endif | |
ab9fa662 JK |
453 | /* Will be used by directory only */ |
454 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 455 | |
aff063e2 JK |
456 | return &fi->vfs_inode; |
457 | } | |
458 | ||
531ad7d5 JK |
459 | static int f2fs_drop_inode(struct inode *inode) |
460 | { | |
b8d96a30 | 461 | int ret; |
531ad7d5 JK |
462 | /* |
463 | * This is to avoid a deadlock condition like below. | |
464 | * writeback_single_inode(inode) | |
465 | * - f2fs_write_data_page | |
466 | * - f2fs_gc -> iput -> evict | |
467 | * - inode_wait_for_writeback(inode) | |
468 | */ | |
0f18b462 | 469 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 470 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
471 | /* to avoid evict_inode call simultaneously */ |
472 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
473 | spin_unlock(&inode->i_lock); |
474 | ||
475 | /* some remained atomic pages should discarded */ | |
476 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 477 | drop_inmem_pages(inode); |
06e1bc05 | 478 | |
3e72f721 JK |
479 | /* should remain fi->extent_tree for writepage */ |
480 | f2fs_destroy_extent_node(inode); | |
481 | ||
06e1bc05 | 482 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 483 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
484 | |
485 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 486 | f2fs_truncate(inode); |
06e1bc05 JK |
487 | |
488 | sb_end_intwrite(inode->i_sb); | |
489 | ||
0b81d077 | 490 | fscrypt_put_encryption_info(inode, NULL); |
06e1bc05 | 491 | spin_lock(&inode->i_lock); |
3e72f721 | 492 | atomic_dec(&inode->i_count); |
06e1bc05 | 493 | } |
b8d96a30 | 494 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 495 | return 0; |
06e1bc05 | 496 | } |
b8d96a30 HP |
497 | ret = generic_drop_inode(inode); |
498 | trace_f2fs_drop_inode(inode, ret); | |
499 | return ret; | |
531ad7d5 JK |
500 | } |
501 | ||
7c45729a | 502 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 503 | { |
0f18b462 | 504 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 505 | int ret = 0; |
0f18b462 | 506 | |
0f18b462 JK |
507 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
508 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
509 | ret = 1; |
510 | } else { | |
511 | set_inode_flag(inode, FI_DIRTY_INODE); | |
512 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 513 | } |
7c45729a JK |
514 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
515 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 516 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
517 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
518 | } | |
338bbfa0 | 519 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 520 | return ret; |
0f18b462 JK |
521 | } |
522 | ||
523 | void f2fs_inode_synced(struct inode *inode) | |
524 | { | |
525 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
526 | ||
527 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
528 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
529 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
530 | return; | |
531 | } | |
7c45729a JK |
532 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
533 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
534 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
535 | } | |
0f18b462 | 536 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 537 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 538 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 539 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
540 | } |
541 | ||
b56ab837 JK |
542 | /* |
543 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
544 | * | |
545 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
546 | */ | |
547 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
548 | { | |
549 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
550 | ||
551 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
552 | inode->i_ino == F2FS_META_INO(sbi)) | |
553 | return; | |
554 | ||
555 | if (flags == I_DIRTY_TIME) | |
556 | return; | |
557 | ||
558 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
559 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
560 | ||
7c45729a | 561 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
562 | } |
563 | ||
aff063e2 JK |
564 | static void f2fs_i_callback(struct rcu_head *head) |
565 | { | |
566 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
567 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
568 | } | |
569 | ||
25ca923b | 570 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
571 | { |
572 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
573 | } | |
574 | ||
523be8a6 JK |
575 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
576 | { | |
41382ec4 | 577 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 578 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
579 | } |
580 | ||
3c62be17 JK |
581 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
582 | { | |
583 | int i; | |
584 | ||
585 | for (i = 0; i < sbi->s_ndevs; i++) { | |
586 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
587 | #ifdef CONFIG_BLK_DEV_ZONED | |
588 | kfree(FDEV(i).blkz_type); | |
589 | #endif | |
590 | } | |
591 | kfree(sbi->devs); | |
592 | } | |
593 | ||
0abd675e | 594 | static void f2fs_quota_off_umount(struct super_block *sb); |
aff063e2 JK |
595 | static void f2fs_put_super(struct super_block *sb) |
596 | { | |
597 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 598 | int i; |
aff063e2 | 599 | |
0abd675e | 600 | f2fs_quota_off_umount(sb); |
aff063e2 | 601 | |
2658e50d JK |
602 | /* prevent remaining shrinker jobs */ |
603 | mutex_lock(&sbi->umount_mutex); | |
604 | ||
85dc2f2c JK |
605 | /* |
606 | * We don't need to do checkpoint when superblock is clean. | |
607 | * But, the previous checkpoint was not done by umount, it needs to do | |
608 | * clean checkpoint again. | |
609 | */ | |
caf0047e | 610 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 611 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
612 | struct cp_control cpc = { |
613 | .reason = CP_UMOUNT, | |
614 | }; | |
615 | write_checkpoint(sbi, &cpc); | |
616 | } | |
aff063e2 | 617 | |
4e6a8d9b | 618 | /* be sure to wait for any on-going discard commands */ |
d431413f | 619 | f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 620 | |
663f387b | 621 | if (f2fs_discard_en(sbi) && !sbi->discard_blks) { |
1f43e2ad CY |
622 | struct cp_control cpc = { |
623 | .reason = CP_UMOUNT | CP_TRIMMED, | |
624 | }; | |
625 | write_checkpoint(sbi, &cpc); | |
626 | } | |
627 | ||
eca616f8 JK |
628 | /* write_checkpoint can update stat informaion */ |
629 | f2fs_destroy_stats(sbi); | |
630 | ||
cf779cab JK |
631 | /* |
632 | * normally superblock is clean, so we need to release this. | |
633 | * In addition, EIO will skip do checkpoint, we need this as well. | |
634 | */ | |
74ef9241 | 635 | release_ino_entry(sbi, true); |
6f12ac25 | 636 | |
2658e50d JK |
637 | f2fs_leave_shrinker(sbi); |
638 | mutex_unlock(&sbi->umount_mutex); | |
639 | ||
17c19120 | 640 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 641 | f2fs_flush_merged_writes(sbi); |
17c19120 | 642 | |
aff063e2 JK |
643 | iput(sbi->node_inode); |
644 | iput(sbi->meta_inode); | |
645 | ||
646 | /* destroy f2fs internal modules */ | |
647 | destroy_node_manager(sbi); | |
648 | destroy_segment_manager(sbi); | |
649 | ||
650 | kfree(sbi->ckpt); | |
a398101a | 651 | |
dc6b2055 | 652 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
653 | |
654 | sb->s_fs_info = NULL; | |
43b6573b KM |
655 | if (sbi->s_chksum_driver) |
656 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 657 | kfree(sbi->raw_super); |
523be8a6 | 658 | |
3c62be17 | 659 | destroy_device_list(sbi); |
b6895e8f | 660 | mempool_destroy(sbi->write_io_dummy); |
523be8a6 | 661 | destroy_percpu_info(sbi); |
a912b54d JK |
662 | for (i = 0; i < NR_PAGE_TYPE; i++) |
663 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
664 | kfree(sbi); |
665 | } | |
666 | ||
667 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
668 | { | |
669 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 670 | int err = 0; |
aff063e2 | 671 | |
a2a4a7e4 NJ |
672 | trace_f2fs_sync_fs(sb, sync); |
673 | ||
b7473754 | 674 | if (sync) { |
d5053a34 JK |
675 | struct cp_control cpc; |
676 | ||
119ee914 JK |
677 | cpc.reason = __get_cp_reason(sbi); |
678 | ||
b7473754 | 679 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 680 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 681 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 682 | } |
05ca3632 | 683 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 684 | |
c34f42e2 | 685 | return err; |
aff063e2 JK |
686 | } |
687 | ||
d6212a5f CL |
688 | static int f2fs_freeze(struct super_block *sb) |
689 | { | |
77888c1e | 690 | if (f2fs_readonly(sb)) |
d6212a5f CL |
691 | return 0; |
692 | ||
b4b9d34c JK |
693 | /* IO error happened before */ |
694 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
695 | return -EIO; | |
696 | ||
697 | /* must be clean, since sync_filesystem() was already called */ | |
698 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
699 | return -EINVAL; | |
700 | return 0; | |
d6212a5f CL |
701 | } |
702 | ||
703 | static int f2fs_unfreeze(struct super_block *sb) | |
704 | { | |
705 | return 0; | |
706 | } | |
707 | ||
ddc34e32 CY |
708 | #ifdef CONFIG_QUOTA |
709 | static int f2fs_statfs_project(struct super_block *sb, | |
710 | kprojid_t projid, struct kstatfs *buf) | |
711 | { | |
712 | struct kqid qid; | |
713 | struct dquot *dquot; | |
714 | u64 limit; | |
715 | u64 curblock; | |
716 | ||
717 | qid = make_kqid_projid(projid); | |
718 | dquot = dqget(sb, qid); | |
719 | if (IS_ERR(dquot)) | |
720 | return PTR_ERR(dquot); | |
721 | spin_lock(&dq_data_lock); | |
722 | ||
723 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
724 | dquot->dq_dqb.dqb_bsoftlimit : | |
725 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
726 | if (limit && buf->f_blocks > limit) { | |
727 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
728 | buf->f_blocks = limit; | |
729 | buf->f_bfree = buf->f_bavail = | |
730 | (buf->f_blocks > curblock) ? | |
731 | (buf->f_blocks - curblock) : 0; | |
732 | } | |
733 | ||
734 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
735 | dquot->dq_dqb.dqb_isoftlimit : | |
736 | dquot->dq_dqb.dqb_ihardlimit; | |
737 | if (limit && buf->f_files > limit) { | |
738 | buf->f_files = limit; | |
739 | buf->f_ffree = | |
740 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
741 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
742 | } | |
743 | ||
744 | spin_unlock(&dq_data_lock); | |
745 | dqput(dquot); | |
746 | return 0; | |
747 | } | |
748 | #endif | |
749 | ||
aff063e2 JK |
750 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
751 | { | |
752 | struct super_block *sb = dentry->d_sb; | |
753 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
754 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
755 | block_t total_count, user_block_count, start_count, ovp_count; | |
0cc091d0 | 756 | u64 avail_node_count; |
aff063e2 JK |
757 | |
758 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
759 | user_block_count = sbi->user_block_count; | |
760 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
761 | ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; | |
762 | buf->f_type = F2FS_SUPER_MAGIC; | |
763 | buf->f_bsize = sbi->blocksize; | |
764 | ||
765 | buf->f_blocks = total_count - start_count; | |
3e6d0b4d | 766 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; |
daeb433e CY |
767 | buf->f_bavail = user_block_count - valid_user_blocks(sbi) - |
768 | sbi->reserved_blocks; | |
aff063e2 | 769 | |
0cc091d0 JK |
770 | avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
771 | ||
772 | if (avail_node_count > user_block_count) { | |
773 | buf->f_files = user_block_count; | |
774 | buf->f_ffree = buf->f_bavail; | |
775 | } else { | |
776 | buf->f_files = avail_node_count; | |
777 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
778 | buf->f_bavail); | |
779 | } | |
aff063e2 | 780 | |
5a20d339 | 781 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
782 | buf->f_fsid.val[0] = (u32)id; |
783 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
784 | ||
ddc34e32 CY |
785 | #ifdef CONFIG_QUOTA |
786 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
787 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
788 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
789 | } | |
790 | #endif | |
aff063e2 JK |
791 | return 0; |
792 | } | |
793 | ||
794 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) | |
795 | { | |
796 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
797 | ||
6aefd93b JK |
798 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
799 | if (test_opt(sbi, FORCE_FG_GC)) | |
800 | seq_printf(seq, ",background_gc=%s", "sync"); | |
801 | else | |
802 | seq_printf(seq, ",background_gc=%s", "on"); | |
803 | } else { | |
696c018c | 804 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 805 | } |
aff063e2 JK |
806 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
807 | seq_puts(seq, ",disable_roll_forward"); | |
808 | if (test_opt(sbi, DISCARD)) | |
809 | seq_puts(seq, ",discard"); | |
810 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
811 | seq_puts(seq, ",no_heap"); |
812 | else | |
813 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
814 | #ifdef CONFIG_F2FS_FS_XATTR |
815 | if (test_opt(sbi, XATTR_USER)) | |
816 | seq_puts(seq, ",user_xattr"); | |
817 | else | |
818 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
819 | if (test_opt(sbi, INLINE_XATTR)) |
820 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
821 | else |
822 | seq_puts(seq, ",noinline_xattr"); | |
aff063e2 JK |
823 | #endif |
824 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
825 | if (test_opt(sbi, POSIX_ACL)) | |
826 | seq_puts(seq, ",acl"); | |
827 | else | |
828 | seq_puts(seq, ",noacl"); | |
829 | #endif | |
830 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 831 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
832 | if (test_opt(sbi, INLINE_DATA)) |
833 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
834 | else |
835 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
836 | if (test_opt(sbi, INLINE_DENTRY)) |
837 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
838 | else |
839 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 840 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 841 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
842 | if (test_opt(sbi, NOBARRIER)) |
843 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
844 | if (test_opt(sbi, FASTBOOT)) |
845 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
846 | if (test_opt(sbi, EXTENT_CACHE)) |
847 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
848 | else |
849 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
850 | if (test_opt(sbi, DATA_FLUSH)) |
851 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
852 | |
853 | seq_puts(seq, ",mode="); | |
854 | if (test_opt(sbi, ADAPTIVE)) | |
855 | seq_puts(seq, "adaptive"); | |
856 | else if (test_opt(sbi, LFS)) | |
857 | seq_puts(seq, "lfs"); | |
aff063e2 | 858 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
ec91538d JK |
859 | if (F2FS_IO_SIZE_BITS(sbi)) |
860 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
861 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
862 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
863 | seq_printf(seq, ",fault_injection=%u", |
864 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 865 | #endif |
0abd675e CY |
866 | #ifdef CONFIG_QUOTA |
867 | if (test_opt(sbi, USRQUOTA)) | |
868 | seq_puts(seq, ",usrquota"); | |
869 | if (test_opt(sbi, GRPQUOTA)) | |
870 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
871 | if (test_opt(sbi, PRJQUOTA)) |
872 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 873 | #endif |
aff063e2 JK |
874 | |
875 | return 0; | |
876 | } | |
877 | ||
498c5e9f YH |
878 | static void default_options(struct f2fs_sb_info *sbi) |
879 | { | |
880 | /* init some FS parameters */ | |
881 | sbi->active_logs = NR_CURSEG_TYPE; | |
882 | ||
883 | set_opt(sbi, BG_GC); | |
39133a50 | 884 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 885 | set_opt(sbi, INLINE_DATA); |
97c1794a | 886 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 887 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 888 | set_opt(sbi, NOHEAP); |
6d94c74a | 889 | sbi->sb->s_flags |= MS_LAZYTIME; |
69e9e427 | 890 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 891 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
892 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
893 | set_opt(sbi, DISCARD); | |
894 | } else { | |
895 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
896 | } | |
498c5e9f YH |
897 | |
898 | #ifdef CONFIG_F2FS_FS_XATTR | |
899 | set_opt(sbi, XATTR_USER); | |
900 | #endif | |
901 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
902 | set_opt(sbi, POSIX_ACL); | |
903 | #endif | |
36dbd328 CY |
904 | |
905 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
906 | f2fs_build_fault_attr(sbi, 0); | |
907 | #endif | |
498c5e9f YH |
908 | } |
909 | ||
696c018c NJ |
910 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
911 | { | |
912 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
913 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 914 | unsigned long old_sb_flags; |
696c018c | 915 | int err, active_logs; |
876dc59e GZ |
916 | bool need_restart_gc = false; |
917 | bool need_stop_gc = false; | |
9cd81ce3 | 918 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
2443b8b3 CY |
919 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
920 | struct f2fs_fault_info ffi = sbi->fault_info; | |
921 | #endif | |
696c018c NJ |
922 | |
923 | /* | |
924 | * Save the old mount options in case we | |
925 | * need to restore them. | |
926 | */ | |
927 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 928 | old_sb_flags = sb->s_flags; |
696c018c NJ |
929 | active_logs = sbi->active_logs; |
930 | ||
df728b0f JK |
931 | /* recover superblocks we couldn't write due to previous RO mount */ |
932 | if (!(*flags & MS_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { | |
933 | err = f2fs_commit_super(sbi, false); | |
934 | f2fs_msg(sb, KERN_INFO, | |
935 | "Try to recover all the superblocks, ret: %d", err); | |
936 | if (!err) | |
937 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
938 | } | |
939 | ||
498c5e9f | 940 | default_options(sbi); |
26666c8a | 941 | |
696c018c NJ |
942 | /* parse mount options */ |
943 | err = parse_options(sb, data); | |
944 | if (err) | |
945 | goto restore_opts; | |
946 | ||
947 | /* | |
948 | * Previous and new state of filesystem is RO, | |
876dc59e | 949 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 950 | */ |
6b2920a5 | 951 | if (f2fs_readonly(sb) && (*flags & MS_RDONLY)) |
696c018c NJ |
952 | goto skip; |
953 | ||
0abd675e CY |
954 | if (!f2fs_readonly(sb) && (*flags & MS_RDONLY)) { |
955 | err = dquot_suspend(sb, -1); | |
956 | if (err < 0) | |
957 | goto restore_opts; | |
958 | } else { | |
959 | /* dquot_resume needs RW */ | |
960 | sb->s_flags &= ~MS_RDONLY; | |
961 | dquot_resume(sb, -1); | |
962 | } | |
963 | ||
9cd81ce3 CY |
964 | /* disallow enable/disable extent_cache dynamically */ |
965 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
966 | err = -EINVAL; | |
967 | f2fs_msg(sbi->sb, KERN_WARNING, | |
968 | "switch extent_cache option is not allowed"); | |
969 | goto restore_opts; | |
970 | } | |
971 | ||
696c018c NJ |
972 | /* |
973 | * We stop the GC thread if FS is mounted as RO | |
974 | * or if background_gc = off is passed in mount | |
975 | * option. Also sync the filesystem. | |
976 | */ | |
977 | if ((*flags & MS_RDONLY) || !test_opt(sbi, BG_GC)) { | |
978 | if (sbi->gc_thread) { | |
979 | stop_gc_thread(sbi); | |
876dc59e | 980 | need_restart_gc = true; |
696c018c | 981 | } |
aba291b3 | 982 | } else if (!sbi->gc_thread) { |
696c018c NJ |
983 | err = start_gc_thread(sbi); |
984 | if (err) | |
985 | goto restore_opts; | |
876dc59e GZ |
986 | need_stop_gc = true; |
987 | } | |
988 | ||
faa0e55b JK |
989 | if (*flags & MS_RDONLY) { |
990 | writeback_inodes_sb(sb, WB_REASON_SYNC); | |
991 | sync_inodes_sb(sb); | |
992 | ||
993 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
994 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
995 | f2fs_sync_fs(sb, 1); | |
996 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
997 | } | |
998 | ||
876dc59e GZ |
999 | /* |
1000 | * We stop issue flush thread if FS is mounted as RO | |
1001 | * or if flush_merge is not passed in mount option. | |
1002 | */ | |
1003 | if ((*flags & MS_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { | |
5eba8c5d JK |
1004 | clear_opt(sbi, FLUSH_MERGE); |
1005 | destroy_flush_cmd_control(sbi, false); | |
1006 | } else { | |
2163d198 GZ |
1007 | err = create_flush_cmd_control(sbi); |
1008 | if (err) | |
a688b9d9 | 1009 | goto restore_gc; |
696c018c NJ |
1010 | } |
1011 | skip: | |
1012 | /* Update the POSIXACL Flag */ | |
df728b0f | 1013 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
696c018c | 1014 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); |
df728b0f | 1015 | |
696c018c | 1016 | return 0; |
876dc59e GZ |
1017 | restore_gc: |
1018 | if (need_restart_gc) { | |
1019 | if (start_gc_thread(sbi)) | |
1020 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1021 | "background gc thread has stopped"); |
876dc59e GZ |
1022 | } else if (need_stop_gc) { |
1023 | stop_gc_thread(sbi); | |
1024 | } | |
696c018c NJ |
1025 | restore_opts: |
1026 | sbi->mount_opt = org_mount_opt; | |
1027 | sbi->active_logs = active_logs; | |
0abd675e | 1028 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1029 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1030 | sbi->fault_info = ffi; | |
1031 | #endif | |
696c018c NJ |
1032 | return err; |
1033 | } | |
1034 | ||
0abd675e CY |
1035 | #ifdef CONFIG_QUOTA |
1036 | /* Read data from quotafile */ | |
1037 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1038 | size_t len, loff_t off) | |
1039 | { | |
1040 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1041 | struct address_space *mapping = inode->i_mapping; | |
1042 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1043 | int offset = off & (sb->s_blocksize - 1); | |
1044 | int tocopy; | |
1045 | size_t toread; | |
1046 | loff_t i_size = i_size_read(inode); | |
1047 | struct page *page; | |
1048 | char *kaddr; | |
1049 | ||
1050 | if (off > i_size) | |
1051 | return 0; | |
1052 | ||
1053 | if (off + len > i_size) | |
1054 | len = i_size - off; | |
1055 | toread = len; | |
1056 | while (toread > 0) { | |
1057 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1058 | repeat: | |
1059 | page = read_mapping_page(mapping, blkidx, NULL); | |
1060 | if (IS_ERR(page)) | |
1061 | return PTR_ERR(page); | |
1062 | ||
1063 | lock_page(page); | |
1064 | ||
1065 | if (unlikely(page->mapping != mapping)) { | |
1066 | f2fs_put_page(page, 1); | |
1067 | goto repeat; | |
1068 | } | |
1069 | if (unlikely(!PageUptodate(page))) { | |
1070 | f2fs_put_page(page, 1); | |
1071 | return -EIO; | |
1072 | } | |
1073 | ||
1074 | kaddr = kmap_atomic(page); | |
1075 | memcpy(data, kaddr + offset, tocopy); | |
1076 | kunmap_atomic(kaddr); | |
1077 | f2fs_put_page(page, 1); | |
1078 | ||
1079 | offset = 0; | |
1080 | toread -= tocopy; | |
1081 | data += tocopy; | |
1082 | blkidx++; | |
1083 | } | |
1084 | return len; | |
1085 | } | |
1086 | ||
1087 | /* Write to quotafile */ | |
1088 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1089 | const char *data, size_t len, loff_t off) | |
1090 | { | |
1091 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1092 | struct address_space *mapping = inode->i_mapping; | |
1093 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1094 | int offset = off & (sb->s_blocksize - 1); | |
1095 | size_t towrite = len; | |
1096 | struct page *page; | |
1097 | char *kaddr; | |
1098 | int err = 0; | |
1099 | int tocopy; | |
1100 | ||
1101 | while (towrite > 0) { | |
1102 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1103 | towrite); | |
1104 | ||
1105 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, | |
1106 | &page, NULL); | |
1107 | if (unlikely(err)) | |
1108 | break; | |
1109 | ||
1110 | kaddr = kmap_atomic(page); | |
1111 | memcpy(kaddr + offset, data, tocopy); | |
1112 | kunmap_atomic(kaddr); | |
1113 | flush_dcache_page(page); | |
1114 | ||
1115 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1116 | page, NULL); | |
1117 | offset = 0; | |
1118 | towrite -= tocopy; | |
1119 | off += tocopy; | |
1120 | data += tocopy; | |
1121 | cond_resched(); | |
1122 | } | |
1123 | ||
1124 | if (len == towrite) | |
4f31d26b | 1125 | return 0; |
0abd675e CY |
1126 | inode->i_version++; |
1127 | inode->i_mtime = inode->i_ctime = current_time(inode); | |
1128 | f2fs_mark_inode_dirty_sync(inode, false); | |
1129 | return len - towrite; | |
1130 | } | |
1131 | ||
1132 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1133 | { | |
1134 | return F2FS_I(inode)->i_dquot; | |
1135 | } | |
1136 | ||
1137 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1138 | { | |
1139 | return &F2FS_I(inode)->i_reserved_quota; | |
1140 | } | |
1141 | ||
1142 | static int f2fs_quota_sync(struct super_block *sb, int type) | |
1143 | { | |
1144 | struct quota_info *dqopt = sb_dqopt(sb); | |
1145 | int cnt; | |
1146 | int ret; | |
1147 | ||
1148 | ret = dquot_writeback_dquots(sb, type); | |
1149 | if (ret) | |
1150 | return ret; | |
1151 | ||
1152 | /* | |
1153 | * Now when everything is written we can discard the pagecache so | |
1154 | * that userspace sees the changes. | |
1155 | */ | |
1156 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1157 | if (type != -1 && cnt != type) | |
1158 | continue; | |
1159 | if (!sb_has_quota_active(sb, cnt)) | |
1160 | continue; | |
1161 | ||
1162 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1163 | if (ret) | |
1164 | return ret; | |
1165 | ||
1166 | inode_lock(dqopt->files[cnt]); | |
1167 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1168 | inode_unlock(dqopt->files[cnt]); | |
1169 | } | |
1170 | return 0; | |
1171 | } | |
1172 | ||
1173 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1174 | const struct path *path) | |
1175 | { | |
1176 | struct inode *inode; | |
1177 | int err; | |
1178 | ||
1179 | err = f2fs_quota_sync(sb, -1); | |
1180 | if (err) | |
1181 | return err; | |
1182 | ||
1183 | err = dquot_quota_on(sb, type, format_id, path); | |
1184 | if (err) | |
1185 | return err; | |
1186 | ||
1187 | inode = d_inode(path->dentry); | |
1188 | ||
1189 | inode_lock(inode); | |
1190 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1191 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1192 | S_NOATIME | S_IMMUTABLE); | |
1193 | inode_unlock(inode); | |
1194 | f2fs_mark_inode_dirty_sync(inode, false); | |
1195 | ||
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1200 | { | |
1201 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1202 | int err; | |
1203 | ||
1204 | if (!inode || !igrab(inode)) | |
1205 | return dquot_quota_off(sb, type); | |
1206 | ||
1207 | f2fs_quota_sync(sb, -1); | |
1208 | ||
1209 | err = dquot_quota_off(sb, type); | |
1210 | if (err) | |
1211 | goto out_put; | |
1212 | ||
1213 | inode_lock(inode); | |
1214 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1215 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1216 | inode_unlock(inode); | |
1217 | f2fs_mark_inode_dirty_sync(inode, false); | |
1218 | out_put: | |
1219 | iput(inode); | |
1220 | return err; | |
1221 | } | |
1222 | ||
1223 | static void f2fs_quota_off_umount(struct super_block *sb) | |
1224 | { | |
1225 | int type; | |
1226 | ||
1227 | for (type = 0; type < MAXQUOTAS; type++) | |
1228 | f2fs_quota_off(sb, type); | |
1229 | } | |
1230 | ||
5c57132e CY |
1231 | int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
1232 | { | |
1233 | *projid = F2FS_I(inode)->i_projid; | |
1234 | return 0; | |
1235 | } | |
1236 | ||
0abd675e CY |
1237 | static const struct dquot_operations f2fs_quota_operations = { |
1238 | .get_reserved_space = f2fs_get_reserved_space, | |
1239 | .write_dquot = dquot_commit, | |
1240 | .acquire_dquot = dquot_acquire, | |
1241 | .release_dquot = dquot_release, | |
1242 | .mark_dirty = dquot_mark_dquot_dirty, | |
1243 | .write_info = dquot_commit_info, | |
1244 | .alloc_dquot = dquot_alloc, | |
1245 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1246 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1247 | .get_next_id = dquot_get_next_id, |
1248 | }; | |
1249 | ||
1250 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1251 | .quota_on = f2fs_quota_on, | |
1252 | .quota_off = f2fs_quota_off, | |
1253 | .quota_sync = f2fs_quota_sync, | |
1254 | .get_state = dquot_get_state, | |
1255 | .set_info = dquot_set_dqinfo, | |
1256 | .get_dqblk = dquot_get_dqblk, | |
1257 | .set_dqblk = dquot_set_dqblk, | |
1258 | .get_nextdqblk = dquot_get_next_dqblk, | |
1259 | }; | |
1260 | #else | |
1261 | static inline void f2fs_quota_off_umount(struct super_block *sb) | |
1262 | { | |
1263 | } | |
1264 | #endif | |
1265 | ||
aff063e2 JK |
1266 | static struct super_operations f2fs_sops = { |
1267 | .alloc_inode = f2fs_alloc_inode, | |
531ad7d5 | 1268 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1269 | .destroy_inode = f2fs_destroy_inode, |
1270 | .write_inode = f2fs_write_inode, | |
b3783873 | 1271 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1272 | .show_options = f2fs_show_options, |
0abd675e CY |
1273 | #ifdef CONFIG_QUOTA |
1274 | .quota_read = f2fs_quota_read, | |
1275 | .quota_write = f2fs_quota_write, | |
1276 | .get_dquots = f2fs_get_dquots, | |
1277 | #endif | |
aff063e2 JK |
1278 | .evict_inode = f2fs_evict_inode, |
1279 | .put_super = f2fs_put_super, | |
1280 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1281 | .freeze_fs = f2fs_freeze, |
1282 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1283 | .statfs = f2fs_statfs, |
696c018c | 1284 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1285 | }; |
1286 | ||
0b81d077 JK |
1287 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1288 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1289 | { | |
1290 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1291 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1292 | ctx, len, NULL); | |
1293 | } | |
1294 | ||
1295 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1296 | void *fs_data) | |
1297 | { | |
1298 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1299 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1300 | ctx, len, fs_data, XATTR_CREATE); | |
1301 | } | |
1302 | ||
1303 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1304 | { | |
1305 | return S_ISLNK(inode->i_mode) ? | |
1306 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1307 | } | |
1308 | ||
6f69f0ed | 1309 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1310 | .key_prefix = "f2fs:", |
0b81d077 JK |
1311 | .get_context = f2fs_get_context, |
1312 | .set_context = f2fs_set_context, | |
1313 | .is_encrypted = f2fs_encrypted_inode, | |
1314 | .empty_dir = f2fs_empty_dir, | |
1315 | .max_namelen = f2fs_max_namelen, | |
1316 | }; | |
1317 | #else | |
6f69f0ed | 1318 | static const struct fscrypt_operations f2fs_cryptops = { |
0b81d077 JK |
1319 | .is_encrypted = f2fs_encrypted_inode, |
1320 | }; | |
1321 | #endif | |
1322 | ||
aff063e2 JK |
1323 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1324 | u64 ino, u32 generation) | |
1325 | { | |
1326 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1327 | struct inode *inode; | |
1328 | ||
d6b7d4b3 | 1329 | if (check_nid_range(sbi, ino)) |
910bb12d | 1330 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1331 | |
1332 | /* | |
1333 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1334 | * However f2fs_iget currently does appropriate checks to handle stale | |
1335 | * inodes so everything is OK. | |
1336 | */ | |
1337 | inode = f2fs_iget(sb, ino); | |
1338 | if (IS_ERR(inode)) | |
1339 | return ERR_CAST(inode); | |
6bacf52f | 1340 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1341 | /* we didn't find the right inode.. */ |
1342 | iput(inode); | |
1343 | return ERR_PTR(-ESTALE); | |
1344 | } | |
1345 | return inode; | |
1346 | } | |
1347 | ||
1348 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1349 | int fh_len, int fh_type) | |
1350 | { | |
1351 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1352 | f2fs_nfs_get_inode); | |
1353 | } | |
1354 | ||
1355 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1356 | int fh_len, int fh_type) | |
1357 | { | |
1358 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1359 | f2fs_nfs_get_inode); | |
1360 | } | |
1361 | ||
1362 | static const struct export_operations f2fs_export_ops = { | |
1363 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1364 | .fh_to_parent = f2fs_fh_to_parent, | |
1365 | .get_parent = f2fs_get_parent, | |
1366 | }; | |
1367 | ||
e0afc4d6 | 1368 | static loff_t max_file_blocks(void) |
aff063e2 | 1369 | { |
7a2af766 | 1370 | loff_t result = 0; |
aff063e2 JK |
1371 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1372 | ||
7a2af766 CY |
1373 | /* |
1374 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
1375 | * F2FS_INLINE_XATTR_ADDRS), but now f2fs try to reserve more | |
1376 | * space in inode.i_addr, it will be more safe to reassign | |
1377 | * result as zero. | |
1378 | */ | |
1379 | ||
aff063e2 JK |
1380 | /* two direct node blocks */ |
1381 | result += (leaf_count * 2); | |
1382 | ||
1383 | /* two indirect node blocks */ | |
1384 | leaf_count *= NIDS_PER_BLOCK; | |
1385 | result += (leaf_count * 2); | |
1386 | ||
1387 | /* one double indirect node block */ | |
1388 | leaf_count *= NIDS_PER_BLOCK; | |
1389 | result += leaf_count; | |
1390 | ||
aff063e2 JK |
1391 | return result; |
1392 | } | |
1393 | ||
fd694733 JK |
1394 | static int __f2fs_commit_super(struct buffer_head *bh, |
1395 | struct f2fs_super_block *super) | |
1396 | { | |
1397 | lock_buffer(bh); | |
1398 | if (super) | |
1399 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
1400 | set_buffer_uptodate(bh); | |
1401 | set_buffer_dirty(bh); | |
1402 | unlock_buffer(bh); | |
1403 | ||
1404 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1405 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1406 | } |
1407 | ||
df728b0f | 1408 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1409 | struct buffer_head *bh) |
9a59b62f | 1410 | { |
fd694733 JK |
1411 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1412 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1413 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1414 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1415 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1416 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1417 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1418 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1419 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1420 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1421 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1422 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1423 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1424 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1425 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1426 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1427 | u64 main_end_blkaddr = main_blkaddr + |
1428 | (segment_count_main << log_blocks_per_seg); | |
1429 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1430 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1431 | |
1432 | if (segment0_blkaddr != cp_blkaddr) { | |
1433 | f2fs_msg(sb, KERN_INFO, | |
1434 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1435 | segment0_blkaddr, cp_blkaddr); | |
1436 | return true; | |
1437 | } | |
1438 | ||
1439 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1440 | sit_blkaddr) { | |
1441 | f2fs_msg(sb, KERN_INFO, | |
1442 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1443 | cp_blkaddr, sit_blkaddr, | |
1444 | segment_count_ckpt << log_blocks_per_seg); | |
1445 | return true; | |
1446 | } | |
1447 | ||
1448 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1449 | nat_blkaddr) { | |
1450 | f2fs_msg(sb, KERN_INFO, | |
1451 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1452 | sit_blkaddr, nat_blkaddr, | |
1453 | segment_count_sit << log_blocks_per_seg); | |
1454 | return true; | |
1455 | } | |
1456 | ||
1457 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1458 | ssa_blkaddr) { | |
1459 | f2fs_msg(sb, KERN_INFO, | |
1460 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1461 | nat_blkaddr, ssa_blkaddr, | |
1462 | segment_count_nat << log_blocks_per_seg); | |
1463 | return true; | |
1464 | } | |
1465 | ||
1466 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
1467 | main_blkaddr) { | |
1468 | f2fs_msg(sb, KERN_INFO, | |
1469 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
1470 | ssa_blkaddr, main_blkaddr, | |
1471 | segment_count_ssa << log_blocks_per_seg); | |
1472 | return true; | |
1473 | } | |
1474 | ||
fd694733 | 1475 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 1476 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 1477 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 1478 | main_blkaddr, |
fd694733 JK |
1479 | segment0_blkaddr + |
1480 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
1481 | segment_count_main << log_blocks_per_seg); |
1482 | return true; | |
fd694733 JK |
1483 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
1484 | int err = 0; | |
1485 | char *res; | |
1486 | ||
1487 | /* fix in-memory information all the time */ | |
1488 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
1489 | segment0_blkaddr) >> log_blocks_per_seg); | |
1490 | ||
1491 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 1492 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
1493 | res = "internally"; |
1494 | } else { | |
1495 | err = __f2fs_commit_super(bh, NULL); | |
1496 | res = err ? "failed" : "done"; | |
1497 | } | |
1498 | f2fs_msg(sb, KERN_INFO, | |
1499 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
1500 | res, main_blkaddr, | |
1501 | segment0_blkaddr + | |
1502 | (segment_count << log_blocks_per_seg), | |
1503 | segment_count_main << log_blocks_per_seg); | |
1504 | if (err) | |
1505 | return true; | |
9a59b62f | 1506 | } |
9a59b62f CY |
1507 | return false; |
1508 | } | |
1509 | ||
df728b0f | 1510 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 1511 | struct buffer_head *bh) |
aff063e2 | 1512 | { |
fd694733 JK |
1513 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1514 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1515 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
1516 | unsigned int blocksize; |
1517 | ||
a07ef784 NJ |
1518 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
1519 | f2fs_msg(sb, KERN_INFO, | |
1520 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
1521 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 1522 | return 1; |
a07ef784 | 1523 | } |
aff063e2 | 1524 | |
5c9b4692 | 1525 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 1526 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 1527 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 1528 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 1529 | PAGE_SIZE); |
5c9b4692 | 1530 | return 1; |
1531 | } | |
1532 | ||
aff063e2 JK |
1533 | /* Currently, support only 4KB block size */ |
1534 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 1535 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
1536 | f2fs_msg(sb, KERN_INFO, |
1537 | "Invalid blocksize (%u), supports only 4KB\n", | |
1538 | blocksize); | |
aff063e2 | 1539 | return 1; |
a07ef784 | 1540 | } |
5c9b4692 | 1541 | |
9a59b62f CY |
1542 | /* check log blocks per segment */ |
1543 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
1544 | f2fs_msg(sb, KERN_INFO, | |
1545 | "Invalid log blocks per segment (%u)\n", | |
1546 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
1547 | return 1; | |
1548 | } | |
1549 | ||
55cf9cb6 CY |
1550 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
1551 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
1552 | F2FS_MAX_LOG_SECTOR_SIZE || | |
1553 | le32_to_cpu(raw_super->log_sectorsize) < | |
1554 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
1555 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
1556 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1557 | return 1; |
a07ef784 | 1558 | } |
55cf9cb6 CY |
1559 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
1560 | le32_to_cpu(raw_super->log_sectorsize) != | |
1561 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
1562 | f2fs_msg(sb, KERN_INFO, | |
1563 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
1564 | le32_to_cpu(raw_super->log_sectors_per_block), | |
1565 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1566 | return 1; |
a07ef784 | 1567 | } |
9a59b62f CY |
1568 | |
1569 | /* check reserved ino info */ | |
1570 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
1571 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
1572 | le32_to_cpu(raw_super->root_ino) != 3) { | |
1573 | f2fs_msg(sb, KERN_INFO, | |
1574 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
1575 | le32_to_cpu(raw_super->node_ino), | |
1576 | le32_to_cpu(raw_super->meta_ino), | |
1577 | le32_to_cpu(raw_super->root_ino)); | |
1578 | return 1; | |
1579 | } | |
1580 | ||
b9dd4618 JQ |
1581 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
1582 | f2fs_msg(sb, KERN_INFO, | |
1583 | "Invalid segment count (%u)", | |
1584 | le32_to_cpu(raw_super->segment_count)); | |
1585 | return 1; | |
1586 | } | |
1587 | ||
9a59b62f | 1588 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 1589 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
1590 | return 1; |
1591 | ||
aff063e2 JK |
1592 | return 0; |
1593 | } | |
1594 | ||
984ec63c | 1595 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
1596 | { |
1597 | unsigned int total, fsmeta; | |
577e3495 JK |
1598 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
1599 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 1600 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
1601 | unsigned int main_segs, blocks_per_seg; |
1602 | int i; | |
aff063e2 JK |
1603 | |
1604 | total = le32_to_cpu(raw_super->segment_count); | |
1605 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
1606 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
1607 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
1608 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
1609 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
1610 | ||
6bacf52f | 1611 | if (unlikely(fsmeta >= total)) |
aff063e2 | 1612 | return 1; |
577e3495 | 1613 | |
2040fce8 JK |
1614 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
1615 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
1616 | ||
1617 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
1618 | ovp_segments == 0 || reserved_segments == 0)) { | |
1619 | f2fs_msg(sbi->sb, KERN_ERR, | |
1620 | "Wrong layout: check mkfs.f2fs version"); | |
1621 | return 1; | |
1622 | } | |
1623 | ||
15d3042a JQ |
1624 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
1625 | blocks_per_seg = sbi->blocks_per_seg; | |
1626 | ||
1627 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
1628 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
1629 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
1630 | return 1; | |
1631 | } | |
1632 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
1633 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
1634 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
1635 | return 1; | |
1636 | } | |
1637 | ||
1e968fdf | 1638 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
1639 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
1640 | return 1; | |
1641 | } | |
aff063e2 JK |
1642 | return 0; |
1643 | } | |
1644 | ||
1645 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
1646 | { | |
1647 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 1648 | int i, j; |
aff063e2 JK |
1649 | |
1650 | sbi->log_sectors_per_block = | |
1651 | le32_to_cpu(raw_super->log_sectors_per_block); | |
1652 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
1653 | sbi->blocksize = 1 << sbi->log_blocksize; | |
1654 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
1655 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
1656 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
1657 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
1658 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
1659 | sbi->total_node_count = | |
1660 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
1661 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
1662 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
1663 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
1664 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 1665 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 1666 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 1667 | |
ab9fa662 | 1668 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 1669 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 1670 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 1671 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 1672 | |
35782b23 JK |
1673 | for (i = 0; i < NR_COUNT_TYPE; i++) |
1674 | atomic_set(&sbi->nr_pages[i], 0); | |
1675 | ||
687de7f1 JK |
1676 | atomic_set(&sbi->wb_sync_req, 0); |
1677 | ||
2658e50d JK |
1678 | INIT_LIST_HEAD(&sbi->s_list); |
1679 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
1680 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
1681 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
1682 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 1683 | spin_lock_init(&sbi->cp_lock); |
aff063e2 JK |
1684 | } |
1685 | ||
523be8a6 JK |
1686 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
1687 | { | |
35782b23 | 1688 | int err; |
41382ec4 | 1689 | |
513c5f37 JK |
1690 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
1691 | if (err) | |
1692 | return err; | |
1693 | ||
1694 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 1695 | GFP_KERNEL); |
523be8a6 JK |
1696 | } |
1697 | ||
178053e2 | 1698 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 1699 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 1700 | { |
3c62be17 | 1701 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
1702 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
1703 | sector_t sector = 0; | |
1704 | struct blk_zone *zones; | |
1705 | unsigned int i, nr_zones; | |
1706 | unsigned int n = 0; | |
1707 | int err = -EIO; | |
1708 | ||
1709 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
1710 | return 0; | |
1711 | ||
3c62be17 | 1712 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 1713 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 1714 | return -EINVAL; |
f99e8648 | 1715 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
1716 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
1717 | __ilog2_u32(sbi->blocks_per_blkz)) | |
1718 | return -EINVAL; | |
178053e2 | 1719 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
1720 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
1721 | sbi->log_blocks_per_blkz; | |
f99e8648 | 1722 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 1723 | FDEV(devi).nr_blkz++; |
178053e2 | 1724 | |
3c62be17 JK |
1725 | FDEV(devi).blkz_type = kmalloc(FDEV(devi).nr_blkz, GFP_KERNEL); |
1726 | if (!FDEV(devi).blkz_type) | |
178053e2 DLM |
1727 | return -ENOMEM; |
1728 | ||
1729 | #define F2FS_REPORT_NR_ZONES 4096 | |
1730 | ||
1731 | zones = kcalloc(F2FS_REPORT_NR_ZONES, sizeof(struct blk_zone), | |
1732 | GFP_KERNEL); | |
1733 | if (!zones) | |
1734 | return -ENOMEM; | |
1735 | ||
1736 | /* Get block zones type */ | |
1737 | while (zones && sector < nr_sectors) { | |
1738 | ||
1739 | nr_zones = F2FS_REPORT_NR_ZONES; | |
1740 | err = blkdev_report_zones(bdev, sector, | |
1741 | zones, &nr_zones, | |
1742 | GFP_KERNEL); | |
1743 | if (err) | |
1744 | break; | |
1745 | if (!nr_zones) { | |
1746 | err = -EIO; | |
1747 | break; | |
1748 | } | |
1749 | ||
1750 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 1751 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
1752 | sector += zones[i].len; |
1753 | n++; | |
1754 | } | |
1755 | } | |
1756 | ||
1757 | kfree(zones); | |
1758 | ||
1759 | return err; | |
1760 | } | |
1761 | #endif | |
1762 | ||
9076a75f GZ |
1763 | /* |
1764 | * Read f2fs raw super block. | |
2b39e907 SL |
1765 | * Because we have two copies of super block, so read both of them |
1766 | * to get the first valid one. If any one of them is broken, we pass | |
1767 | * them recovery flag back to the caller. | |
9076a75f | 1768 | */ |
df728b0f | 1769 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 1770 | struct f2fs_super_block **raw_super, |
e8240f65 | 1771 | int *valid_super_block, int *recovery) |
14d7e9de | 1772 | { |
df728b0f | 1773 | struct super_block *sb = sbi->sb; |
2b39e907 | 1774 | int block; |
e8240f65 | 1775 | struct buffer_head *bh; |
fd694733 | 1776 | struct f2fs_super_block *super; |
da554e48 | 1777 | int err = 0; |
14d7e9de | 1778 | |
b39f0de2 YH |
1779 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
1780 | if (!super) | |
1781 | return -ENOMEM; | |
2b39e907 SL |
1782 | |
1783 | for (block = 0; block < 2; block++) { | |
1784 | bh = sb_bread(sb, block); | |
1785 | if (!bh) { | |
1786 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 1787 | block + 1); |
2b39e907 SL |
1788 | err = -EIO; |
1789 | continue; | |
1790 | } | |
14d7e9de | 1791 | |
2b39e907 | 1792 | /* sanity checking of raw super */ |
df728b0f | 1793 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
1794 | f2fs_msg(sb, KERN_ERR, |
1795 | "Can't find valid F2FS filesystem in %dth superblock", | |
1796 | block + 1); | |
1797 | err = -EINVAL; | |
1798 | brelse(bh); | |
1799 | continue; | |
1800 | } | |
14d7e9de | 1801 | |
2b39e907 | 1802 | if (!*raw_super) { |
fd694733 JK |
1803 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
1804 | sizeof(*super)); | |
2b39e907 SL |
1805 | *valid_super_block = block; |
1806 | *raw_super = super; | |
1807 | } | |
1808 | brelse(bh); | |
da554e48 | 1809 | } |
1810 | ||
2b39e907 SL |
1811 | /* Fail to read any one of the superblocks*/ |
1812 | if (err < 0) | |
1813 | *recovery = 1; | |
da554e48 | 1814 | |
da554e48 | 1815 | /* No valid superblock */ |
2b39e907 | 1816 | if (!*raw_super) |
b39f0de2 | 1817 | kfree(super); |
2b39e907 SL |
1818 | else |
1819 | err = 0; | |
da554e48 | 1820 | |
2b39e907 | 1821 | return err; |
14d7e9de | 1822 | } |
1823 | ||
fd694733 | 1824 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 1825 | { |
5d909cdb | 1826 | struct buffer_head *bh; |
26d815ad JK |
1827 | int err; |
1828 | ||
df728b0f JK |
1829 | if ((recover && f2fs_readonly(sbi->sb)) || |
1830 | bdev_read_only(sbi->sb->s_bdev)) { | |
1831 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 1832 | return -EROFS; |
df728b0f | 1833 | } |
f2353d7b | 1834 | |
fd694733 JK |
1835 | /* write back-up superblock first */ |
1836 | bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); | |
5d909cdb JK |
1837 | if (!bh) |
1838 | return -EIO; | |
fd694733 | 1839 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 1840 | brelse(bh); |
c5bda1c8 CY |
1841 | |
1842 | /* if we are in recovery path, skip writing valid superblock */ | |
1843 | if (recover || err) | |
5d909cdb | 1844 | return err; |
26d815ad JK |
1845 | |
1846 | /* write current valid superblock */ | |
fd694733 JK |
1847 | bh = sb_getblk(sbi->sb, sbi->valid_super_block); |
1848 | if (!bh) | |
1849 | return -EIO; | |
1850 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
1851 | brelse(bh); | |
1852 | return err; | |
26d815ad JK |
1853 | } |
1854 | ||
3c62be17 JK |
1855 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
1856 | { | |
1857 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 1858 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
1859 | int i; |
1860 | ||
7bb3a371 MS |
1861 | /* Initialize single device information */ |
1862 | if (!RDEV(0).path[0]) { | |
1863 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 1864 | return 0; |
7bb3a371 MS |
1865 | max_devices = 1; |
1866 | } | |
3c62be17 | 1867 | |
7bb3a371 MS |
1868 | /* |
1869 | * Initialize multiple devices information, or single | |
1870 | * zoned block device information. | |
1871 | */ | |
1872 | sbi->devs = kcalloc(max_devices, sizeof(struct f2fs_dev_info), | |
1873 | GFP_KERNEL); | |
1874 | if (!sbi->devs) | |
1875 | return -ENOMEM; | |
3c62be17 | 1876 | |
7bb3a371 | 1877 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 1878 | |
7bb3a371 MS |
1879 | if (i > 0 && !RDEV(i).path[0]) |
1880 | break; | |
1881 | ||
1882 | if (max_devices == 1) { | |
1883 | /* Single zoned block device mount */ | |
1884 | FDEV(0).bdev = | |
1885 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 1886 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
1887 | } else { |
1888 | /* Multi-device mount */ | |
1889 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
1890 | FDEV(i).total_segments = | |
1891 | le32_to_cpu(RDEV(i).total_segments); | |
1892 | if (i == 0) { | |
1893 | FDEV(i).start_blk = 0; | |
1894 | FDEV(i).end_blk = FDEV(i).start_blk + | |
1895 | (FDEV(i).total_segments << | |
1896 | sbi->log_blocks_per_seg) - 1 + | |
1897 | le32_to_cpu(raw_super->segment0_blkaddr); | |
1898 | } else { | |
1899 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
1900 | FDEV(i).end_blk = FDEV(i).start_blk + | |
1901 | (FDEV(i).total_segments << | |
1902 | sbi->log_blocks_per_seg) - 1; | |
1903 | } | |
1904 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 1905 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 1906 | } |
3c62be17 JK |
1907 | if (IS_ERR(FDEV(i).bdev)) |
1908 | return PTR_ERR(FDEV(i).bdev); | |
1909 | ||
1910 | /* to release errored devices */ | |
1911 | sbi->s_ndevs = i + 1; | |
1912 | ||
1913 | #ifdef CONFIG_BLK_DEV_ZONED | |
1914 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
1915 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
1916 | f2fs_msg(sbi->sb, KERN_ERR, | |
1917 | "Zoned block device feature not enabled\n"); | |
1918 | return -EINVAL; | |
1919 | } | |
1920 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
1921 | if (init_blkz_info(sbi, i)) { | |
1922 | f2fs_msg(sbi->sb, KERN_ERR, | |
1923 | "Failed to initialize F2FS blkzone information"); | |
1924 | return -EINVAL; | |
1925 | } | |
7bb3a371 MS |
1926 | if (max_devices == 1) |
1927 | break; | |
3c62be17 JK |
1928 | f2fs_msg(sbi->sb, KERN_INFO, |
1929 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
1930 | i, FDEV(i).path, | |
1931 | FDEV(i).total_segments, | |
1932 | FDEV(i).start_blk, FDEV(i).end_blk, | |
1933 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
1934 | "Host-aware" : "Host-managed"); | |
1935 | continue; | |
1936 | } | |
1937 | #endif | |
1938 | f2fs_msg(sbi->sb, KERN_INFO, | |
1939 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
1940 | i, FDEV(i).path, | |
1941 | FDEV(i).total_segments, | |
1942 | FDEV(i).start_blk, FDEV(i).end_blk); | |
1943 | } | |
0a595eba JK |
1944 | f2fs_msg(sbi->sb, KERN_INFO, |
1945 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
1946 | return 0; |
1947 | } | |
1948 | ||
aff063e2 JK |
1949 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
1950 | { | |
1951 | struct f2fs_sb_info *sbi; | |
da554e48 | 1952 | struct f2fs_super_block *raw_super; |
aff063e2 | 1953 | struct inode *root; |
99e3e858 | 1954 | int err; |
2adc3505 | 1955 | bool retry = true, need_fsck = false; |
dabc4a5c | 1956 | char *options = NULL; |
e8240f65 | 1957 | int recovery, i, valid_super_block; |
8f1dbbbb | 1958 | struct curseg_info *seg_i; |
aff063e2 | 1959 | |
ed2e621a | 1960 | try_onemore: |
da554e48 | 1961 | err = -EINVAL; |
1962 | raw_super = NULL; | |
e8240f65 | 1963 | valid_super_block = -1; |
da554e48 | 1964 | recovery = 0; |
1965 | ||
aff063e2 JK |
1966 | /* allocate memory for f2fs-specific super block info */ |
1967 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
1968 | if (!sbi) | |
1969 | return -ENOMEM; | |
1970 | ||
df728b0f JK |
1971 | sbi->sb = sb; |
1972 | ||
43b6573b KM |
1973 | /* Load the checksum driver */ |
1974 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
1975 | if (IS_ERR(sbi->s_chksum_driver)) { | |
1976 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
1977 | err = PTR_ERR(sbi->s_chksum_driver); | |
1978 | sbi->s_chksum_driver = NULL; | |
1979 | goto free_sbi; | |
1980 | } | |
1981 | ||
ff9234ad | 1982 | /* set a block size */ |
6bacf52f | 1983 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 1984 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 1985 | goto free_sbi; |
a07ef784 | 1986 | } |
aff063e2 | 1987 | |
df728b0f | 1988 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 1989 | &recovery); |
9076a75f GZ |
1990 | if (err) |
1991 | goto free_sbi; | |
1992 | ||
5fb08372 | 1993 | sb->s_fs_info = sbi; |
52763a4b JK |
1994 | sbi->raw_super = raw_super; |
1995 | ||
d1b959c8 DLM |
1996 | /* |
1997 | * The BLKZONED feature indicates that the drive was formatted with | |
1998 | * zone alignment optimization. This is optional for host-aware | |
1999 | * devices, but mandatory for host-managed zoned block devices. | |
2000 | */ | |
2001 | #ifndef CONFIG_BLK_DEV_ZONED | |
2002 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
2003 | f2fs_msg(sb, KERN_ERR, | |
2004 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2005 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2006 | goto free_sb_buf; |
2007 | } | |
d1b959c8 | 2008 | #endif |
498c5e9f | 2009 | default_options(sbi); |
aff063e2 | 2010 | /* parse mount options */ |
dabc4a5c JK |
2011 | options = kstrdup((const char *)data, GFP_KERNEL); |
2012 | if (data && !options) { | |
2013 | err = -ENOMEM; | |
aff063e2 | 2014 | goto free_sb_buf; |
dabc4a5c JK |
2015 | } |
2016 | ||
2017 | err = parse_options(sb, options); | |
2018 | if (err) | |
2019 | goto free_options; | |
aff063e2 | 2020 | |
e0afc4d6 CY |
2021 | sbi->max_file_blocks = max_file_blocks(); |
2022 | sb->s_maxbytes = sbi->max_file_blocks << | |
2023 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2024 | sb->s_max_links = F2FS_LINK_MAX; |
2025 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2026 | ||
0abd675e CY |
2027 | #ifdef CONFIG_QUOTA |
2028 | sb->dq_op = &f2fs_quota_operations; | |
2029 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2030 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
0abd675e CY |
2031 | #endif |
2032 | ||
aff063e2 | 2033 | sb->s_op = &f2fs_sops; |
0b81d077 | 2034 | sb->s_cop = &f2fs_cryptops; |
aff063e2 JK |
2035 | sb->s_xattr = f2fs_xattr_handlers; |
2036 | sb->s_export_op = &f2fs_export_ops; | |
2037 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 JK |
2038 | sb->s_time_gran = 1; |
2039 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | | |
2040 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); | |
85787090 | 2041 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
aff063e2 JK |
2042 | |
2043 | /* init f2fs-specific super block info */ | |
e8240f65 | 2044 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2045 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2046 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2047 | init_rwsem(&sbi->node_write); |
59c9081b | 2048 | init_rwsem(&sbi->node_change); |
315df839 JK |
2049 | |
2050 | /* disallow all the data/node/meta page writes */ | |
2051 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2052 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2053 | |
458e6197 | 2054 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2055 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2056 | int j; | |
2057 | ||
2058 | sbi->write_io[i] = kmalloc(n * sizeof(struct f2fs_bio_info), | |
2059 | GFP_KERNEL); | |
b63def91 CJ |
2060 | if (!sbi->write_io[i]) { |
2061 | err = -ENOMEM; | |
a912b54d | 2062 | goto free_options; |
b63def91 | 2063 | } |
a912b54d JK |
2064 | |
2065 | for (j = HOT; j < n; j++) { | |
2066 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2067 | sbi->write_io[i][j].sbi = sbi; | |
2068 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2069 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2070 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2071 | } |
458e6197 | 2072 | } |
971767ca | 2073 | |
b873b798 | 2074 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2075 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2076 | init_sb_info(sbi); |
2077 | ||
523be8a6 JK |
2078 | err = init_percpu_info(sbi); |
2079 | if (err) | |
2080 | goto free_options; | |
2081 | ||
0a595eba JK |
2082 | if (F2FS_IO_SIZE(sbi) > 1) { |
2083 | sbi->write_io_dummy = | |
a3ebfe4f | 2084 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2085 | if (!sbi->write_io_dummy) { |
2086 | err = -ENOMEM; | |
0a595eba | 2087 | goto free_options; |
1727f317 | 2088 | } |
0a595eba JK |
2089 | } |
2090 | ||
aff063e2 JK |
2091 | /* get an inode for meta space */ |
2092 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2093 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2094 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2095 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2096 | goto free_io_dummy; |
aff063e2 JK |
2097 | } |
2098 | ||
2099 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2100 | if (err) { |
2101 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2102 | goto free_meta_inode; |
a07ef784 | 2103 | } |
aff063e2 | 2104 | |
3c62be17 JK |
2105 | /* Initialize device list */ |
2106 | err = f2fs_scan_devices(sbi); | |
2107 | if (err) { | |
2108 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2109 | goto free_devices; | |
2110 | } | |
2111 | ||
aff063e2 JK |
2112 | sbi->total_valid_node_count = |
2113 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2114 | percpu_counter_set(&sbi->total_valid_inode_count, |
2115 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2116 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2117 | sbi->total_valid_block_count = | |
2118 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2119 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2120 | sbi->reserved_blocks = 0; |
41382ec4 | 2121 | |
c227f912 CY |
2122 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2123 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2124 | spin_lock_init(&sbi->inode_lock[i]); | |
2125 | } | |
aff063e2 | 2126 | |
1dcc336b CY |
2127 | init_extent_cache_info(sbi); |
2128 | ||
6451e041 | 2129 | init_ino_entry_info(sbi); |
aff063e2 JK |
2130 | |
2131 | /* setup f2fs internal modules */ | |
2132 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2133 | if (err) { |
2134 | f2fs_msg(sb, KERN_ERR, | |
2135 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2136 | goto free_sm; |
a07ef784 | 2137 | } |
aff063e2 | 2138 | err = build_node_manager(sbi); |
a07ef784 NJ |
2139 | if (err) { |
2140 | f2fs_msg(sb, KERN_ERR, | |
2141 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2142 | goto free_nm; |
a07ef784 | 2143 | } |
aff063e2 | 2144 | |
8f1dbbbb SL |
2145 | /* For write statistics */ |
2146 | if (sb->s_bdev->bd_part) | |
2147 | sbi->sectors_written_start = | |
2148 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2149 | ||
2150 | /* Read accumulated write IO statistics if exists */ | |
2151 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2152 | if (__exist_node_summaries(sbi)) | |
2153 | sbi->kbytes_written = | |
b2dde6fc | 2154 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2155 | |
aff063e2 JK |
2156 | build_gc_manager(sbi); |
2157 | ||
2158 | /* get an inode for node space */ | |
2159 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2160 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2161 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2162 | err = PTR_ERR(sbi->node_inode); |
2163 | goto free_nm; | |
2164 | } | |
2165 | ||
2658e50d JK |
2166 | f2fs_join_shrinker(sbi); |
2167 | ||
aa51d08a JK |
2168 | err = f2fs_build_stats(sbi); |
2169 | if (err) | |
2170 | goto free_nm; | |
2171 | ||
aff063e2 | 2172 | /* if there are nt orphan nodes free them */ |
8c14bfad CY |
2173 | err = recover_orphan_inodes(sbi); |
2174 | if (err) | |
2175 | goto free_node_inode; | |
aff063e2 JK |
2176 | |
2177 | /* read root inode and dentry */ | |
2178 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2179 | if (IS_ERR(root)) { | |
a07ef784 | 2180 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 JK |
2181 | err = PTR_ERR(root); |
2182 | goto free_node_inode; | |
2183 | } | |
8f99a946 | 2184 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2185 | iput(root); |
8f99a946 | 2186 | err = -EINVAL; |
9d847950 | 2187 | goto free_node_inode; |
8f99a946 | 2188 | } |
aff063e2 JK |
2189 | |
2190 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2191 | if (!sb->s_root) { | |
2192 | err = -ENOMEM; | |
2193 | goto free_root_inode; | |
2194 | } | |
2195 | ||
dc6b2055 | 2196 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2197 | if (err) |
a398101a | 2198 | goto free_root_inode; |
b59d0bae | 2199 | |
6437d1b0 JK |
2200 | /* recover fsynced data */ |
2201 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2202 | /* |
2203 | * mount should be failed, when device has readonly mode, and | |
2204 | * previous checkpoint was not done by clean system shutdown. | |
2205 | */ | |
2206 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2207 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2208 | err = -EROFS; |
a398101a | 2209 | goto free_sysfs; |
081d78c2 | 2210 | } |
2adc3505 CY |
2211 | |
2212 | if (need_fsck) | |
2213 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2214 | ||
a468f0ef JK |
2215 | if (!retry) |
2216 | goto skip_recovery; | |
2217 | ||
6781eabb JK |
2218 | err = recover_fsync_data(sbi, false); |
2219 | if (err < 0) { | |
2adc3505 | 2220 | need_fsck = true; |
6437d1b0 | 2221 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2222 | "Cannot recover all fsync data errno=%d", err); |
a398101a | 2223 | goto free_sysfs; |
ed2e621a | 2224 | } |
6781eabb JK |
2225 | } else { |
2226 | err = recover_fsync_data(sbi, true); | |
2227 | ||
2228 | if (!f2fs_readonly(sb) && err > 0) { | |
2229 | err = -EINVAL; | |
2230 | f2fs_msg(sb, KERN_ERR, | |
2231 | "Need to recover fsync data"); | |
a398101a | 2232 | goto free_sysfs; |
6781eabb | 2233 | } |
6437d1b0 | 2234 | } |
a468f0ef | 2235 | skip_recovery: |
315df839 JK |
2236 | /* recover_fsync_data() cleared this already */ |
2237 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2238 | |
6437d1b0 JK |
2239 | /* |
2240 | * If filesystem is not mounted as read-only then | |
2241 | * do start the gc_thread. | |
2242 | */ | |
6c029932 | 2243 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2244 | /* After POR, we can run background GC thread.*/ |
2245 | err = start_gc_thread(sbi); | |
2246 | if (err) | |
a398101a | 2247 | goto free_sysfs; |
6437d1b0 | 2248 | } |
dabc4a5c | 2249 | kfree(options); |
da554e48 | 2250 | |
2251 | /* recover broken superblock */ | |
f2353d7b | 2252 | if (recovery) { |
41214b3c CY |
2253 | err = f2fs_commit_super(sbi, true); |
2254 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2255 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2256 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2257 | } |
2258 | ||
1200abb2 JK |
2259 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2260 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2261 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2262 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2263 | return 0; |
6437d1b0 | 2264 | |
a398101a | 2265 | free_sysfs: |
0f18b462 | 2266 | f2fs_sync_inode_meta(sbi); |
dc6b2055 | 2267 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2268 | free_root_inode: |
2269 | dput(sb->s_root); | |
2270 | sb->s_root = NULL; | |
2271 | free_node_inode: | |
bb5dada7 | 2272 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
2658e50d | 2273 | mutex_lock(&sbi->umount_mutex); |
d41065e2 | 2274 | release_ino_entry(sbi, true); |
2658e50d | 2275 | f2fs_leave_shrinker(sbi); |
09922800 JK |
2276 | /* |
2277 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2278 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2279 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2280 | * falls into an infinite loop in sync_meta_pages(). | |
2281 | */ | |
2282 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
aff063e2 | 2283 | iput(sbi->node_inode); |
2658e50d | 2284 | mutex_unlock(&sbi->umount_mutex); |
aa51d08a | 2285 | f2fs_destroy_stats(sbi); |
aff063e2 JK |
2286 | free_nm: |
2287 | destroy_node_manager(sbi); | |
2288 | free_sm: | |
2289 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2290 | free_devices: |
2291 | destroy_device_list(sbi); | |
aff063e2 JK |
2292 | kfree(sbi->ckpt); |
2293 | free_meta_inode: | |
2294 | make_bad_inode(sbi->meta_inode); | |
2295 | iput(sbi->meta_inode); | |
0a595eba JK |
2296 | free_io_dummy: |
2297 | mempool_destroy(sbi->write_io_dummy); | |
dabc4a5c | 2298 | free_options: |
a912b54d JK |
2299 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2300 | kfree(sbi->write_io[i]); | |
523be8a6 | 2301 | destroy_percpu_info(sbi); |
dabc4a5c | 2302 | kfree(options); |
aff063e2 | 2303 | free_sb_buf: |
b39f0de2 | 2304 | kfree(raw_super); |
aff063e2 | 2305 | free_sbi: |
43b6573b KM |
2306 | if (sbi->s_chksum_driver) |
2307 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2308 | kfree(sbi); |
ed2e621a JK |
2309 | |
2310 | /* give only one another chance */ | |
2311 | if (retry) { | |
9df47ba7 | 2312 | retry = false; |
ed2e621a JK |
2313 | shrink_dcache_sb(sb); |
2314 | goto try_onemore; | |
2315 | } | |
aff063e2 JK |
2316 | return err; |
2317 | } | |
2318 | ||
2319 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2320 | const char *dev_name, void *data) | |
2321 | { | |
2322 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2323 | } | |
2324 | ||
30a5537f JK |
2325 | static void kill_f2fs_super(struct super_block *sb) |
2326 | { | |
cce13252 | 2327 | if (sb->s_root) { |
caf0047e | 2328 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2329 | stop_gc_thread(F2FS_SB(sb)); |
2330 | stop_discard_thread(F2FS_SB(sb)); | |
2331 | } | |
30a5537f JK |
2332 | kill_block_super(sb); |
2333 | } | |
2334 | ||
aff063e2 JK |
2335 | static struct file_system_type f2fs_fs_type = { |
2336 | .owner = THIS_MODULE, | |
2337 | .name = "f2fs", | |
2338 | .mount = f2fs_mount, | |
30a5537f | 2339 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2340 | .fs_flags = FS_REQUIRES_DEV, |
2341 | }; | |
7f78e035 | 2342 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2343 | |
6e6093a8 | 2344 | static int __init init_inodecache(void) |
aff063e2 | 2345 | { |
5d097056 VD |
2346 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2347 | sizeof(struct f2fs_inode_info), 0, | |
2348 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2349 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2350 | return -ENOMEM; |
2351 | return 0; | |
2352 | } | |
2353 | ||
2354 | static void destroy_inodecache(void) | |
2355 | { | |
2356 | /* | |
2357 | * Make sure all delayed rcu free inodes are flushed before we | |
2358 | * destroy cache. | |
2359 | */ | |
2360 | rcu_barrier(); | |
2361 | kmem_cache_destroy(f2fs_inode_cachep); | |
2362 | } | |
2363 | ||
2364 | static int __init init_f2fs_fs(void) | |
2365 | { | |
2366 | int err; | |
2367 | ||
c0508650 JK |
2368 | f2fs_build_trace_ios(); |
2369 | ||
aff063e2 JK |
2370 | err = init_inodecache(); |
2371 | if (err) | |
2372 | goto fail; | |
2373 | err = create_node_manager_caches(); | |
2374 | if (err) | |
9890ff3f | 2375 | goto free_inodecache; |
7fd9e544 | 2376 | err = create_segment_manager_caches(); |
aff063e2 | 2377 | if (err) |
9890ff3f | 2378 | goto free_node_manager_caches; |
aff063e2 JK |
2379 | err = create_checkpoint_caches(); |
2380 | if (err) | |
06292073 | 2381 | goto free_segment_manager_caches; |
1dcc336b CY |
2382 | err = create_extent_cache(); |
2383 | if (err) | |
2384 | goto free_checkpoint_caches; | |
dc6b2055 | 2385 | err = f2fs_init_sysfs(); |
a398101a | 2386 | if (err) |
1dcc336b | 2387 | goto free_extent_cache; |
2658e50d | 2388 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 2389 | if (err) |
a398101a | 2390 | goto free_sysfs; |
2658e50d JK |
2391 | err = register_filesystem(&f2fs_fs_type); |
2392 | if (err) | |
2393 | goto free_shrinker; | |
787c7b8c CY |
2394 | err = f2fs_create_root_stats(); |
2395 | if (err) | |
2396 | goto free_filesystem; | |
9890ff3f ZH |
2397 | return 0; |
2398 | ||
787c7b8c CY |
2399 | free_filesystem: |
2400 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
2401 | free_shrinker: |
2402 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 2403 | free_sysfs: |
dc6b2055 | 2404 | f2fs_exit_sysfs(); |
1dcc336b CY |
2405 | free_extent_cache: |
2406 | destroy_extent_cache(); | |
9890ff3f ZH |
2407 | free_checkpoint_caches: |
2408 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
2409 | free_segment_manager_caches: |
2410 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
2411 | free_node_manager_caches: |
2412 | destroy_node_manager_caches(); | |
2413 | free_inodecache: | |
2414 | destroy_inodecache(); | |
aff063e2 JK |
2415 | fail: |
2416 | return err; | |
2417 | } | |
2418 | ||
2419 | static void __exit exit_f2fs_fs(void) | |
2420 | { | |
4589d25d | 2421 | f2fs_destroy_root_stats(); |
aff063e2 | 2422 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 2423 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 2424 | f2fs_exit_sysfs(); |
fdf6c8be | 2425 | destroy_extent_cache(); |
aff063e2 | 2426 | destroy_checkpoint_caches(); |
5dcd8a71 | 2427 | destroy_segment_manager_caches(); |
aff063e2 JK |
2428 | destroy_node_manager_caches(); |
2429 | destroy_inodecache(); | |
351f4fba | 2430 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
2431 | } |
2432 | ||
2433 | module_init(init_f2fs_fs) | |
2434 | module_exit(exit_f2fs_fs) | |
2435 | ||
2436 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
2437 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
2438 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 2439 |