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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> |
4b2414d0 | 28 | #include <linux/quota.h> |
aff063e2 JK |
29 | |
30 | #include "f2fs.h" | |
31 | #include "node.h" | |
5ec4e49f | 32 | #include "segment.h" |
aff063e2 | 33 | #include "xattr.h" |
b59d0bae | 34 | #include "gc.h" |
db9f7c1a | 35 | #include "trace.h" |
aff063e2 | 36 | |
a2a4a7e4 NJ |
37 | #define CREATE_TRACE_POINTS |
38 | #include <trace/events/f2fs.h> | |
39 | ||
aff063e2 JK |
40 | static struct kmem_cache *f2fs_inode_cachep; |
41 | ||
73faec4d | 42 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2c63fead JK |
43 | |
44 | char *fault_name[FAULT_MAX] = { | |
45 | [FAULT_KMALLOC] = "kmalloc", | |
c41f3cc3 | 46 | [FAULT_PAGE_ALLOC] = "page alloc", |
01eccef7 | 47 | [FAULT_PAGE_GET] = "page get", |
d62fe971 | 48 | [FAULT_ALLOC_BIO] = "alloc bio", |
cb78942b JK |
49 | [FAULT_ALLOC_NID] = "alloc nid", |
50 | [FAULT_ORPHAN] = "orphan", | |
51 | [FAULT_BLOCK] = "no more block", | |
52 | [FAULT_DIR_DEPTH] = "too big dir depth", | |
53aa6bbf | 53 | [FAULT_EVICT_INODE] = "evict_inode fail", |
14b44d23 | 54 | [FAULT_TRUNCATE] = "truncate fail", |
8b038c70 | 55 | [FAULT_IO] = "IO error", |
0f348028 | 56 | [FAULT_CHECKPOINT] = "checkpoint error", |
2c63fead | 57 | }; |
08796897 | 58 | |
1ecc0c5c CY |
59 | static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, |
60 | unsigned int rate) | |
08796897 | 61 | { |
1ecc0c5c CY |
62 | struct f2fs_fault_info *ffi = &sbi->fault_info; |
63 | ||
08796897 | 64 | if (rate) { |
1ecc0c5c CY |
65 | atomic_set(&ffi->inject_ops, 0); |
66 | ffi->inject_rate = rate; | |
67 | ffi->inject_type = (1 << FAULT_MAX) - 1; | |
08796897 | 68 | } else { |
1ecc0c5c | 69 | memset(ffi, 0, sizeof(struct f2fs_fault_info)); |
08796897 SY |
70 | } |
71 | } | |
73faec4d JK |
72 | #endif |
73 | ||
2658e50d JK |
74 | /* f2fs-wide shrinker description */ |
75 | static struct shrinker f2fs_shrinker_info = { | |
76 | .scan_objects = f2fs_shrink_scan, | |
77 | .count_objects = f2fs_shrink_count, | |
78 | .seeks = DEFAULT_SEEKS, | |
79 | }; | |
80 | ||
aff063e2 | 81 | enum { |
696c018c | 82 | Opt_gc_background, |
aff063e2 | 83 | Opt_disable_roll_forward, |
2d834bf9 | 84 | Opt_norecovery, |
aff063e2 | 85 | Opt_discard, |
64058be9 | 86 | Opt_nodiscard, |
aff063e2 | 87 | Opt_noheap, |
7a20b8a6 | 88 | Opt_heap, |
4058c511 | 89 | Opt_user_xattr, |
aff063e2 | 90 | Opt_nouser_xattr, |
4058c511 | 91 | Opt_acl, |
aff063e2 JK |
92 | Opt_noacl, |
93 | Opt_active_logs, | |
94 | Opt_disable_ext_identify, | |
444c580f | 95 | Opt_inline_xattr, |
23cf7212 | 96 | Opt_noinline_xattr, |
6afc662e | 97 | Opt_inline_xattr_size, |
8274de77 | 98 | Opt_inline_data, |
5efd3c6f | 99 | Opt_inline_dentry, |
97c1794a | 100 | Opt_noinline_dentry, |
6b4afdd7 | 101 | Opt_flush_merge, |
69e9e427 | 102 | Opt_noflush_merge, |
0f7b2abd | 103 | Opt_nobarrier, |
d5053a34 | 104 | Opt_fastboot, |
89672159 | 105 | Opt_extent_cache, |
7daaea25 | 106 | Opt_noextent_cache, |
75342797 | 107 | Opt_noinline_data, |
343f40f0 | 108 | Opt_data_flush, |
36abef4e | 109 | Opt_mode, |
ec91538d | 110 | Opt_io_size_bits, |
73faec4d | 111 | Opt_fault_injection, |
6d94c74a JK |
112 | Opt_lazytime, |
113 | Opt_nolazytime, | |
4b2414d0 CY |
114 | Opt_quota, |
115 | Opt_noquota, | |
0abd675e CY |
116 | Opt_usrquota, |
117 | Opt_grpquota, | |
5c57132e | 118 | Opt_prjquota, |
4b2414d0 CY |
119 | Opt_usrjquota, |
120 | Opt_grpjquota, | |
121 | Opt_prjjquota, | |
122 | Opt_offusrjquota, | |
123 | Opt_offgrpjquota, | |
124 | Opt_offprjjquota, | |
125 | Opt_jqfmt_vfsold, | |
126 | Opt_jqfmt_vfsv0, | |
127 | Opt_jqfmt_vfsv1, | |
aff063e2 JK |
128 | Opt_err, |
129 | }; | |
130 | ||
131 | static match_table_t f2fs_tokens = { | |
696c018c | 132 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 133 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 134 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 135 | {Opt_discard, "discard"}, |
64058be9 | 136 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 137 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 138 | {Opt_heap, "heap"}, |
4058c511 | 139 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 140 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 141 | {Opt_acl, "acl"}, |
aff063e2 JK |
142 | {Opt_noacl, "noacl"}, |
143 | {Opt_active_logs, "active_logs=%u"}, | |
144 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 145 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 146 | {Opt_noinline_xattr, "noinline_xattr"}, |
6afc662e | 147 | {Opt_inline_xattr_size, "inline_xattr_size=%u"}, |
8274de77 | 148 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 149 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 150 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 151 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 152 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 153 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 154 | {Opt_fastboot, "fastboot"}, |
89672159 | 155 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 156 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 157 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 158 | {Opt_data_flush, "data_flush"}, |
36abef4e | 159 | {Opt_mode, "mode=%s"}, |
ec91538d | 160 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 161 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
162 | {Opt_lazytime, "lazytime"}, |
163 | {Opt_nolazytime, "nolazytime"}, | |
4b2414d0 CY |
164 | {Opt_quota, "quota"}, |
165 | {Opt_noquota, "noquota"}, | |
0abd675e CY |
166 | {Opt_usrquota, "usrquota"}, |
167 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 168 | {Opt_prjquota, "prjquota"}, |
4b2414d0 CY |
169 | {Opt_usrjquota, "usrjquota=%s"}, |
170 | {Opt_grpjquota, "grpjquota=%s"}, | |
171 | {Opt_prjjquota, "prjjquota=%s"}, | |
172 | {Opt_offusrjquota, "usrjquota="}, | |
173 | {Opt_offgrpjquota, "grpjquota="}, | |
174 | {Opt_offprjjquota, "prjjquota="}, | |
175 | {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, | |
176 | {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, | |
177 | {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, | |
aff063e2 JK |
178 | {Opt_err, NULL}, |
179 | }; | |
180 | ||
a07ef784 NJ |
181 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
182 | { | |
183 | struct va_format vaf; | |
184 | va_list args; | |
185 | ||
186 | va_start(args, fmt); | |
187 | vaf.fmt = fmt; | |
188 | vaf.va = &args; | |
a36c106d | 189 | printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); |
a07ef784 NJ |
190 | va_end(args); |
191 | } | |
192 | ||
aff063e2 JK |
193 | static void init_once(void *foo) |
194 | { | |
195 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
196 | ||
aff063e2 JK |
197 | inode_init_once(&fi->vfs_inode); |
198 | } | |
199 | ||
4b2414d0 CY |
200 | #ifdef CONFIG_QUOTA |
201 | static const char * const quotatypes[] = INITQFNAMES; | |
202 | #define QTYPE2NAME(t) (quotatypes[t]) | |
203 | static int f2fs_set_qf_name(struct super_block *sb, int qtype, | |
204 | substring_t *args) | |
205 | { | |
206 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
207 | char *qname; | |
208 | int ret = -EINVAL; | |
209 | ||
210 | if (sb_any_quota_loaded(sb) && !sbi->s_qf_names[qtype]) { | |
211 | f2fs_msg(sb, KERN_ERR, | |
212 | "Cannot change journaled " | |
213 | "quota options when quota turned on"); | |
214 | return -EINVAL; | |
215 | } | |
ea676733 JK |
216 | if (f2fs_sb_has_quota_ino(sb)) { |
217 | f2fs_msg(sb, KERN_INFO, | |
218 | "QUOTA feature is enabled, so ignore qf_name"); | |
219 | return 0; | |
220 | } | |
221 | ||
4b2414d0 CY |
222 | qname = match_strdup(args); |
223 | if (!qname) { | |
224 | f2fs_msg(sb, KERN_ERR, | |
225 | "Not enough memory for storing quotafile name"); | |
226 | return -EINVAL; | |
227 | } | |
228 | if (sbi->s_qf_names[qtype]) { | |
229 | if (strcmp(sbi->s_qf_names[qtype], qname) == 0) | |
230 | ret = 0; | |
231 | else | |
232 | f2fs_msg(sb, KERN_ERR, | |
233 | "%s quota file already specified", | |
234 | QTYPE2NAME(qtype)); | |
235 | goto errout; | |
236 | } | |
237 | if (strchr(qname, '/')) { | |
238 | f2fs_msg(sb, KERN_ERR, | |
239 | "quotafile must be on filesystem root"); | |
240 | goto errout; | |
241 | } | |
242 | sbi->s_qf_names[qtype] = qname; | |
243 | set_opt(sbi, QUOTA); | |
244 | return 0; | |
245 | errout: | |
246 | kfree(qname); | |
247 | return ret; | |
248 | } | |
249 | ||
250 | static int f2fs_clear_qf_name(struct super_block *sb, int qtype) | |
251 | { | |
252 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
253 | ||
254 | if (sb_any_quota_loaded(sb) && sbi->s_qf_names[qtype]) { | |
255 | f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" | |
256 | " when quota turned on"); | |
257 | return -EINVAL; | |
258 | } | |
259 | kfree(sbi->s_qf_names[qtype]); | |
260 | sbi->s_qf_names[qtype] = NULL; | |
261 | return 0; | |
262 | } | |
263 | ||
264 | static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) | |
265 | { | |
266 | /* | |
267 | * We do the test below only for project quotas. 'usrquota' and | |
268 | * 'grpquota' mount options are allowed even without quota feature | |
269 | * to support legacy quotas in quota files. | |
270 | */ | |
271 | if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) { | |
272 | f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " | |
273 | "Cannot enable project quota enforcement."); | |
274 | return -1; | |
275 | } | |
276 | if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA] || | |
277 | sbi->s_qf_names[PRJQUOTA]) { | |
278 | if (test_opt(sbi, USRQUOTA) && sbi->s_qf_names[USRQUOTA]) | |
279 | clear_opt(sbi, USRQUOTA); | |
280 | ||
281 | if (test_opt(sbi, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) | |
282 | clear_opt(sbi, GRPQUOTA); | |
283 | ||
284 | if (test_opt(sbi, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA]) | |
285 | clear_opt(sbi, PRJQUOTA); | |
286 | ||
287 | if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || | |
288 | test_opt(sbi, PRJQUOTA)) { | |
289 | f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " | |
290 | "format mixing"); | |
291 | return -1; | |
292 | } | |
293 | ||
294 | if (!sbi->s_jquota_fmt) { | |
295 | f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " | |
296 | "not specified"); | |
297 | return -1; | |
298 | } | |
299 | } | |
ea676733 JK |
300 | |
301 | if (f2fs_sb_has_quota_ino(sbi->sb) && sbi->s_jquota_fmt) { | |
302 | f2fs_msg(sbi->sb, KERN_INFO, | |
303 | "QUOTA feature is enabled, so ignore jquota_fmt"); | |
304 | sbi->s_jquota_fmt = 0; | |
305 | } | |
306 | if (f2fs_sb_has_quota_ino(sbi->sb) && sb_rdonly(sbi->sb)) { | |
307 | f2fs_msg(sbi->sb, KERN_INFO, | |
308 | "Filesystem with quota feature cannot be mounted RDWR " | |
309 | "without CONFIG_QUOTA"); | |
310 | return -1; | |
311 | } | |
4b2414d0 CY |
312 | return 0; |
313 | } | |
314 | #endif | |
315 | ||
696c018c NJ |
316 | static int parse_options(struct super_block *sb, char *options) |
317 | { | |
318 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 319 | struct request_queue *q; |
696c018c NJ |
320 | substring_t args[MAX_OPT_ARGS]; |
321 | char *p, *name; | |
322 | int arg = 0; | |
4b2414d0 CY |
323 | #ifdef CONFIG_QUOTA |
324 | int ret; | |
325 | #endif | |
696c018c NJ |
326 | |
327 | if (!options) | |
328 | return 0; | |
329 | ||
330 | while ((p = strsep(&options, ",")) != NULL) { | |
331 | int token; | |
332 | if (!*p) | |
333 | continue; | |
334 | /* | |
335 | * Initialize args struct so we know whether arg was | |
336 | * found; some options take optional arguments. | |
337 | */ | |
338 | args[0].to = args[0].from = NULL; | |
339 | token = match_token(p, f2fs_tokens, args); | |
340 | ||
341 | switch (token) { | |
342 | case Opt_gc_background: | |
343 | name = match_strdup(&args[0]); | |
344 | ||
345 | if (!name) | |
346 | return -ENOMEM; | |
6aefd93b | 347 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 348 | set_opt(sbi, BG_GC); |
6aefd93b JK |
349 | clear_opt(sbi, FORCE_FG_GC); |
350 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 351 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
352 | clear_opt(sbi, FORCE_FG_GC); |
353 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
354 | set_opt(sbi, BG_GC); | |
355 | set_opt(sbi, FORCE_FG_GC); | |
356 | } else { | |
696c018c NJ |
357 | kfree(name); |
358 | return -EINVAL; | |
359 | } | |
360 | kfree(name); | |
361 | break; | |
362 | case Opt_disable_roll_forward: | |
363 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
364 | break; | |
2d834bf9 JK |
365 | case Opt_norecovery: |
366 | /* this option mounts f2fs with ro */ | |
367 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
368 | if (!f2fs_readonly(sb)) | |
369 | return -EINVAL; | |
370 | break; | |
696c018c | 371 | case Opt_discard: |
09d54cdd CY |
372 | q = bdev_get_queue(sb->s_bdev); |
373 | if (blk_queue_discard(q)) { | |
374 | set_opt(sbi, DISCARD); | |
0ab02998 | 375 | } else if (!f2fs_sb_mounted_blkzoned(sb)) { |
09d54cdd CY |
376 | f2fs_msg(sb, KERN_WARNING, |
377 | "mounting with \"discard\" option, but " | |
378 | "the device does not support discard"); | |
379 | } | |
696c018c | 380 | break; |
64058be9 | 381 | case Opt_nodiscard: |
96ba2dec DLM |
382 | if (f2fs_sb_mounted_blkzoned(sb)) { |
383 | f2fs_msg(sb, KERN_WARNING, | |
384 | "discard is required for zoned block devices"); | |
385 | return -EINVAL; | |
386 | } | |
64058be9 | 387 | clear_opt(sbi, DISCARD); |
487df616 | 388 | break; |
696c018c NJ |
389 | case Opt_noheap: |
390 | set_opt(sbi, NOHEAP); | |
391 | break; | |
7a20b8a6 JK |
392 | case Opt_heap: |
393 | clear_opt(sbi, NOHEAP); | |
394 | break; | |
696c018c | 395 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
396 | case Opt_user_xattr: |
397 | set_opt(sbi, XATTR_USER); | |
398 | break; | |
696c018c NJ |
399 | case Opt_nouser_xattr: |
400 | clear_opt(sbi, XATTR_USER); | |
401 | break; | |
444c580f JK |
402 | case Opt_inline_xattr: |
403 | set_opt(sbi, INLINE_XATTR); | |
404 | break; | |
23cf7212 CY |
405 | case Opt_noinline_xattr: |
406 | clear_opt(sbi, INLINE_XATTR); | |
407 | break; | |
6afc662e CY |
408 | case Opt_inline_xattr_size: |
409 | if (args->from && match_int(args, &arg)) | |
410 | return -EINVAL; | |
411 | set_opt(sbi, INLINE_XATTR_SIZE); | |
412 | sbi->inline_xattr_size = arg; | |
413 | break; | |
696c018c | 414 | #else |
4058c511 KA |
415 | case Opt_user_xattr: |
416 | f2fs_msg(sb, KERN_INFO, | |
417 | "user_xattr options not supported"); | |
418 | break; | |
696c018c NJ |
419 | case Opt_nouser_xattr: |
420 | f2fs_msg(sb, KERN_INFO, | |
421 | "nouser_xattr options not supported"); | |
422 | break; | |
444c580f JK |
423 | case Opt_inline_xattr: |
424 | f2fs_msg(sb, KERN_INFO, | |
425 | "inline_xattr options not supported"); | |
426 | break; | |
23cf7212 CY |
427 | case Opt_noinline_xattr: |
428 | f2fs_msg(sb, KERN_INFO, | |
429 | "noinline_xattr options not supported"); | |
430 | break; | |
696c018c NJ |
431 | #endif |
432 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
433 | case Opt_acl: |
434 | set_opt(sbi, POSIX_ACL); | |
435 | break; | |
696c018c NJ |
436 | case Opt_noacl: |
437 | clear_opt(sbi, POSIX_ACL); | |
438 | break; | |
439 | #else | |
4058c511 KA |
440 | case Opt_acl: |
441 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
442 | break; | |
696c018c NJ |
443 | case Opt_noacl: |
444 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
445 | break; | |
446 | #endif | |
447 | case Opt_active_logs: | |
448 | if (args->from && match_int(args, &arg)) | |
449 | return -EINVAL; | |
450 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
451 | return -EINVAL; | |
452 | sbi->active_logs = arg; | |
453 | break; | |
454 | case Opt_disable_ext_identify: | |
455 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
456 | break; | |
8274de77 HL |
457 | case Opt_inline_data: |
458 | set_opt(sbi, INLINE_DATA); | |
459 | break; | |
5efd3c6f CY |
460 | case Opt_inline_dentry: |
461 | set_opt(sbi, INLINE_DENTRY); | |
462 | break; | |
97c1794a CY |
463 | case Opt_noinline_dentry: |
464 | clear_opt(sbi, INLINE_DENTRY); | |
465 | break; | |
6b4afdd7 JK |
466 | case Opt_flush_merge: |
467 | set_opt(sbi, FLUSH_MERGE); | |
468 | break; | |
69e9e427 JK |
469 | case Opt_noflush_merge: |
470 | clear_opt(sbi, FLUSH_MERGE); | |
471 | break; | |
0f7b2abd JK |
472 | case Opt_nobarrier: |
473 | set_opt(sbi, NOBARRIER); | |
474 | break; | |
d5053a34 JK |
475 | case Opt_fastboot: |
476 | set_opt(sbi, FASTBOOT); | |
477 | break; | |
89672159 CY |
478 | case Opt_extent_cache: |
479 | set_opt(sbi, EXTENT_CACHE); | |
480 | break; | |
7daaea25 JK |
481 | case Opt_noextent_cache: |
482 | clear_opt(sbi, EXTENT_CACHE); | |
483 | break; | |
75342797 WL |
484 | case Opt_noinline_data: |
485 | clear_opt(sbi, INLINE_DATA); | |
486 | break; | |
343f40f0 CY |
487 | case Opt_data_flush: |
488 | set_opt(sbi, DATA_FLUSH); | |
489 | break; | |
36abef4e JK |
490 | case Opt_mode: |
491 | name = match_strdup(&args[0]); | |
492 | ||
493 | if (!name) | |
494 | return -ENOMEM; | |
495 | if (strlen(name) == 8 && | |
496 | !strncmp(name, "adaptive", 8)) { | |
3adc57e9 DLM |
497 | if (f2fs_sb_mounted_blkzoned(sb)) { |
498 | f2fs_msg(sb, KERN_WARNING, | |
499 | "adaptive mode is not allowed with " | |
500 | "zoned block device feature"); | |
501 | kfree(name); | |
502 | return -EINVAL; | |
503 | } | |
52763a4b | 504 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
505 | } else if (strlen(name) == 3 && |
506 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 507 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
508 | } else { |
509 | kfree(name); | |
510 | return -EINVAL; | |
511 | } | |
512 | kfree(name); | |
513 | break; | |
ec91538d JK |
514 | case Opt_io_size_bits: |
515 | if (args->from && match_int(args, &arg)) | |
516 | return -EINVAL; | |
517 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
518 | f2fs_msg(sb, KERN_WARNING, | |
519 | "Not support %d, larger than %d", | |
520 | 1 << arg, BIO_MAX_PAGES); | |
521 | return -EINVAL; | |
522 | } | |
523 | sbi->write_io_size_bits = arg; | |
524 | break; | |
73faec4d JK |
525 | case Opt_fault_injection: |
526 | if (args->from && match_int(args, &arg)) | |
527 | return -EINVAL; | |
528 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 529 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 530 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
531 | #else |
532 | f2fs_msg(sb, KERN_INFO, | |
533 | "FAULT_INJECTION was not selected"); | |
534 | #endif | |
535 | break; | |
6d94c74a | 536 | case Opt_lazytime: |
1751e8a6 | 537 | sb->s_flags |= SB_LAZYTIME; |
6d94c74a JK |
538 | break; |
539 | case Opt_nolazytime: | |
1751e8a6 | 540 | sb->s_flags &= ~SB_LAZYTIME; |
6d94c74a | 541 | break; |
0abd675e | 542 | #ifdef CONFIG_QUOTA |
4b2414d0 | 543 | case Opt_quota: |
0abd675e CY |
544 | case Opt_usrquota: |
545 | set_opt(sbi, USRQUOTA); | |
546 | break; | |
547 | case Opt_grpquota: | |
548 | set_opt(sbi, GRPQUOTA); | |
549 | break; | |
5c57132e CY |
550 | case Opt_prjquota: |
551 | set_opt(sbi, PRJQUOTA); | |
552 | break; | |
4b2414d0 CY |
553 | case Opt_usrjquota: |
554 | ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); | |
555 | if (ret) | |
556 | return ret; | |
557 | break; | |
558 | case Opt_grpjquota: | |
559 | ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); | |
560 | if (ret) | |
561 | return ret; | |
562 | break; | |
563 | case Opt_prjjquota: | |
564 | ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); | |
565 | if (ret) | |
566 | return ret; | |
567 | break; | |
568 | case Opt_offusrjquota: | |
569 | ret = f2fs_clear_qf_name(sb, USRQUOTA); | |
570 | if (ret) | |
571 | return ret; | |
572 | break; | |
573 | case Opt_offgrpjquota: | |
574 | ret = f2fs_clear_qf_name(sb, GRPQUOTA); | |
575 | if (ret) | |
576 | return ret; | |
577 | break; | |
578 | case Opt_offprjjquota: | |
579 | ret = f2fs_clear_qf_name(sb, PRJQUOTA); | |
580 | if (ret) | |
581 | return ret; | |
582 | break; | |
583 | case Opt_jqfmt_vfsold: | |
584 | sbi->s_jquota_fmt = QFMT_VFS_OLD; | |
585 | break; | |
586 | case Opt_jqfmt_vfsv0: | |
587 | sbi->s_jquota_fmt = QFMT_VFS_V0; | |
588 | break; | |
589 | case Opt_jqfmt_vfsv1: | |
590 | sbi->s_jquota_fmt = QFMT_VFS_V1; | |
591 | break; | |
592 | case Opt_noquota: | |
593 | clear_opt(sbi, QUOTA); | |
594 | clear_opt(sbi, USRQUOTA); | |
595 | clear_opt(sbi, GRPQUOTA); | |
596 | clear_opt(sbi, PRJQUOTA); | |
597 | break; | |
0abd675e | 598 | #else |
4b2414d0 | 599 | case Opt_quota: |
0abd675e CY |
600 | case Opt_usrquota: |
601 | case Opt_grpquota: | |
5c57132e | 602 | case Opt_prjquota: |
4b2414d0 CY |
603 | case Opt_usrjquota: |
604 | case Opt_grpjquota: | |
605 | case Opt_prjjquota: | |
606 | case Opt_offusrjquota: | |
607 | case Opt_offgrpjquota: | |
608 | case Opt_offprjjquota: | |
609 | case Opt_jqfmt_vfsold: | |
610 | case Opt_jqfmt_vfsv0: | |
611 | case Opt_jqfmt_vfsv1: | |
612 | case Opt_noquota: | |
0abd675e CY |
613 | f2fs_msg(sb, KERN_INFO, |
614 | "quota operations not supported"); | |
615 | break; | |
616 | #endif | |
696c018c NJ |
617 | default: |
618 | f2fs_msg(sb, KERN_ERR, | |
619 | "Unrecognized mount option \"%s\" or missing value", | |
620 | p); | |
621 | return -EINVAL; | |
622 | } | |
623 | } | |
4b2414d0 CY |
624 | #ifdef CONFIG_QUOTA |
625 | if (f2fs_check_quota_options(sbi)) | |
626 | return -EINVAL; | |
627 | #endif | |
ec91538d JK |
628 | |
629 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
630 | f2fs_msg(sb, KERN_ERR, | |
631 | "Should set mode=lfs with %uKB-sized IO", | |
632 | F2FS_IO_SIZE_KB(sbi)); | |
633 | return -EINVAL; | |
634 | } | |
6afc662e CY |
635 | |
636 | if (test_opt(sbi, INLINE_XATTR_SIZE)) { | |
637 | if (!test_opt(sbi, INLINE_XATTR)) { | |
638 | f2fs_msg(sb, KERN_ERR, | |
639 | "inline_xattr_size option should be " | |
640 | "set with inline_xattr option"); | |
641 | return -EINVAL; | |
642 | } | |
643 | if (!sbi->inline_xattr_size || | |
644 | sbi->inline_xattr_size >= DEF_ADDRS_PER_INODE - | |
645 | F2FS_TOTAL_EXTRA_ATTR_SIZE - | |
646 | DEF_INLINE_RESERVED_SIZE - | |
647 | DEF_MIN_INLINE_SIZE) { | |
648 | f2fs_msg(sb, KERN_ERR, | |
649 | "inline xattr size is out of range"); | |
650 | return -EINVAL; | |
651 | } | |
652 | } | |
696c018c NJ |
653 | return 0; |
654 | } | |
655 | ||
aff063e2 JK |
656 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
657 | { | |
658 | struct f2fs_inode_info *fi; | |
659 | ||
a0acdfe0 | 660 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
661 | if (!fi) |
662 | return NULL; | |
663 | ||
664 | init_once((void *) fi); | |
665 | ||
434720fa | 666 | /* Initialize f2fs-specific inode info */ |
204706c7 | 667 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
668 | fi->i_current_depth = 1; |
669 | fi->i_advise = 0; | |
d928bfbf | 670 | init_rwsem(&fi->i_sem); |
2710fd7e | 671 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 672 | INIT_LIST_HEAD(&fi->gdirty_list); |
57864ae5 | 673 | INIT_LIST_HEAD(&fi->inmem_ilist); |
88b88a66 JK |
674 | INIT_LIST_HEAD(&fi->inmem_pages); |
675 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
676 | init_rwsem(&fi->dio_rwsem[READ]); |
677 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 678 | init_rwsem(&fi->i_mmap_sem); |
27161f13 | 679 | init_rwsem(&fi->i_xattr_sem); |
aff063e2 | 680 | |
0abd675e CY |
681 | #ifdef CONFIG_QUOTA |
682 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
683 | fi->i_reserved_quota = 0; | |
684 | #endif | |
ab9fa662 JK |
685 | /* Will be used by directory only */ |
686 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 687 | |
aff063e2 JK |
688 | return &fi->vfs_inode; |
689 | } | |
690 | ||
531ad7d5 JK |
691 | static int f2fs_drop_inode(struct inode *inode) |
692 | { | |
b8d96a30 | 693 | int ret; |
531ad7d5 JK |
694 | /* |
695 | * This is to avoid a deadlock condition like below. | |
696 | * writeback_single_inode(inode) | |
697 | * - f2fs_write_data_page | |
698 | * - f2fs_gc -> iput -> evict | |
699 | * - inode_wait_for_writeback(inode) | |
700 | */ | |
0f18b462 | 701 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 702 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
703 | /* to avoid evict_inode call simultaneously */ |
704 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
705 | spin_unlock(&inode->i_lock); |
706 | ||
707 | /* some remained atomic pages should discarded */ | |
708 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 709 | drop_inmem_pages(inode); |
06e1bc05 | 710 | |
3e72f721 JK |
711 | /* should remain fi->extent_tree for writepage */ |
712 | f2fs_destroy_extent_node(inode); | |
713 | ||
06e1bc05 | 714 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 715 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
716 | |
717 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 718 | f2fs_truncate(inode); |
06e1bc05 JK |
719 | |
720 | sb_end_intwrite(inode->i_sb); | |
721 | ||
06e1bc05 | 722 | spin_lock(&inode->i_lock); |
3e72f721 | 723 | atomic_dec(&inode->i_count); |
06e1bc05 | 724 | } |
b8d96a30 | 725 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 726 | return 0; |
06e1bc05 | 727 | } |
b8d96a30 HP |
728 | ret = generic_drop_inode(inode); |
729 | trace_f2fs_drop_inode(inode, ret); | |
730 | return ret; | |
531ad7d5 JK |
731 | } |
732 | ||
7c45729a | 733 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 734 | { |
0f18b462 | 735 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 736 | int ret = 0; |
0f18b462 | 737 | |
0f18b462 JK |
738 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
739 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
740 | ret = 1; |
741 | } else { | |
742 | set_inode_flag(inode, FI_DIRTY_INODE); | |
743 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 744 | } |
7c45729a JK |
745 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
746 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 747 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
748 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
749 | } | |
338bbfa0 | 750 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 751 | return ret; |
0f18b462 JK |
752 | } |
753 | ||
754 | void f2fs_inode_synced(struct inode *inode) | |
755 | { | |
756 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
757 | ||
758 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
759 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
760 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
761 | return; | |
762 | } | |
7c45729a JK |
763 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
764 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
765 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
766 | } | |
0f18b462 | 767 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 768 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 769 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 770 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
771 | } |
772 | ||
b56ab837 JK |
773 | /* |
774 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
775 | * | |
776 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
777 | */ | |
778 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
779 | { | |
780 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
781 | ||
782 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
783 | inode->i_ino == F2FS_META_INO(sbi)) | |
784 | return; | |
785 | ||
786 | if (flags == I_DIRTY_TIME) | |
787 | return; | |
788 | ||
789 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
790 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
791 | ||
7c45729a | 792 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
793 | } |
794 | ||
aff063e2 JK |
795 | static void f2fs_i_callback(struct rcu_head *head) |
796 | { | |
797 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
798 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
799 | } | |
800 | ||
25ca923b | 801 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
802 | { |
803 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
804 | } | |
805 | ||
523be8a6 JK |
806 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
807 | { | |
41382ec4 | 808 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 809 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
810 | } |
811 | ||
3c62be17 JK |
812 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
813 | { | |
814 | int i; | |
815 | ||
816 | for (i = 0; i < sbi->s_ndevs; i++) { | |
817 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
818 | #ifdef CONFIG_BLK_DEV_ZONED | |
819 | kfree(FDEV(i).blkz_type); | |
820 | #endif | |
821 | } | |
822 | kfree(sbi->devs); | |
823 | } | |
824 | ||
aff063e2 JK |
825 | static void f2fs_put_super(struct super_block *sb) |
826 | { | |
827 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 828 | int i; |
cf5c759f | 829 | bool dropped; |
aff063e2 | 830 | |
0abd675e | 831 | f2fs_quota_off_umount(sb); |
aff063e2 | 832 | |
2658e50d JK |
833 | /* prevent remaining shrinker jobs */ |
834 | mutex_lock(&sbi->umount_mutex); | |
835 | ||
85dc2f2c JK |
836 | /* |
837 | * We don't need to do checkpoint when superblock is clean. | |
838 | * But, the previous checkpoint was not done by umount, it needs to do | |
839 | * clean checkpoint again. | |
840 | */ | |
caf0047e | 841 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 842 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
843 | struct cp_control cpc = { |
844 | .reason = CP_UMOUNT, | |
845 | }; | |
846 | write_checkpoint(sbi, &cpc); | |
847 | } | |
aff063e2 | 848 | |
4e6a8d9b | 849 | /* be sure to wait for any on-going discard commands */ |
cf5c759f | 850 | dropped = f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 851 | |
cf5c759f | 852 | if (f2fs_discard_en(sbi) && !sbi->discard_blks && !dropped) { |
1f43e2ad CY |
853 | struct cp_control cpc = { |
854 | .reason = CP_UMOUNT | CP_TRIMMED, | |
855 | }; | |
856 | write_checkpoint(sbi, &cpc); | |
857 | } | |
858 | ||
eca616f8 JK |
859 | /* write_checkpoint can update stat informaion */ |
860 | f2fs_destroy_stats(sbi); | |
861 | ||
cf779cab JK |
862 | /* |
863 | * normally superblock is clean, so we need to release this. | |
864 | * In addition, EIO will skip do checkpoint, we need this as well. | |
865 | */ | |
74ef9241 | 866 | release_ino_entry(sbi, true); |
6f12ac25 | 867 | |
2658e50d JK |
868 | f2fs_leave_shrinker(sbi); |
869 | mutex_unlock(&sbi->umount_mutex); | |
870 | ||
17c19120 | 871 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 872 | f2fs_flush_merged_writes(sbi); |
17c19120 | 873 | |
aff063e2 JK |
874 | iput(sbi->node_inode); |
875 | iput(sbi->meta_inode); | |
876 | ||
877 | /* destroy f2fs internal modules */ | |
878 | destroy_node_manager(sbi); | |
879 | destroy_segment_manager(sbi); | |
880 | ||
881 | kfree(sbi->ckpt); | |
a398101a | 882 | |
dc6b2055 | 883 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
884 | |
885 | sb->s_fs_info = NULL; | |
43b6573b KM |
886 | if (sbi->s_chksum_driver) |
887 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 888 | kfree(sbi->raw_super); |
523be8a6 | 889 | |
3c62be17 | 890 | destroy_device_list(sbi); |
b6895e8f | 891 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
892 | #ifdef CONFIG_QUOTA |
893 | for (i = 0; i < MAXQUOTAS; i++) | |
894 | kfree(sbi->s_qf_names[i]); | |
895 | #endif | |
523be8a6 | 896 | destroy_percpu_info(sbi); |
a912b54d JK |
897 | for (i = 0; i < NR_PAGE_TYPE; i++) |
898 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
899 | kfree(sbi); |
900 | } | |
901 | ||
902 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
903 | { | |
904 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 905 | int err = 0; |
aff063e2 | 906 | |
1f227a3e JK |
907 | if (unlikely(f2fs_cp_error(sbi))) |
908 | return 0; | |
909 | ||
a2a4a7e4 NJ |
910 | trace_f2fs_sync_fs(sb, sync); |
911 | ||
4b2414d0 CY |
912 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
913 | return -EAGAIN; | |
914 | ||
b7473754 | 915 | if (sync) { |
d5053a34 JK |
916 | struct cp_control cpc; |
917 | ||
119ee914 JK |
918 | cpc.reason = __get_cp_reason(sbi); |
919 | ||
b7473754 | 920 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 921 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 922 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 923 | } |
05ca3632 | 924 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 925 | |
c34f42e2 | 926 | return err; |
aff063e2 JK |
927 | } |
928 | ||
d6212a5f CL |
929 | static int f2fs_freeze(struct super_block *sb) |
930 | { | |
77888c1e | 931 | if (f2fs_readonly(sb)) |
d6212a5f CL |
932 | return 0; |
933 | ||
b4b9d34c JK |
934 | /* IO error happened before */ |
935 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
936 | return -EIO; | |
937 | ||
938 | /* must be clean, since sync_filesystem() was already called */ | |
939 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
940 | return -EINVAL; | |
941 | return 0; | |
d6212a5f CL |
942 | } |
943 | ||
944 | static int f2fs_unfreeze(struct super_block *sb) | |
945 | { | |
946 | return 0; | |
947 | } | |
948 | ||
ddc34e32 CY |
949 | #ifdef CONFIG_QUOTA |
950 | static int f2fs_statfs_project(struct super_block *sb, | |
951 | kprojid_t projid, struct kstatfs *buf) | |
952 | { | |
953 | struct kqid qid; | |
954 | struct dquot *dquot; | |
955 | u64 limit; | |
956 | u64 curblock; | |
957 | ||
958 | qid = make_kqid_projid(projid); | |
959 | dquot = dqget(sb, qid); | |
960 | if (IS_ERR(dquot)) | |
961 | return PTR_ERR(dquot); | |
962 | spin_lock(&dq_data_lock); | |
963 | ||
2147dfd4 CX |
964 | limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit, |
965 | dquot->dq_dqb.dqb_bhardlimit); | |
d5629f3e CX |
966 | if (limit) |
967 | limit >>= sb->s_blocksize_bits; | |
4daeb71b | 968 | |
ddc34e32 CY |
969 | if (limit && buf->f_blocks > limit) { |
970 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
971 | buf->f_blocks = limit; | |
972 | buf->f_bfree = buf->f_bavail = | |
973 | (buf->f_blocks > curblock) ? | |
974 | (buf->f_blocks - curblock) : 0; | |
975 | } | |
976 | ||
2147dfd4 CX |
977 | limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit, |
978 | dquot->dq_dqb.dqb_ihardlimit); | |
4daeb71b | 979 | |
ddc34e32 CY |
980 | if (limit && buf->f_files > limit) { |
981 | buf->f_files = limit; | |
982 | buf->f_ffree = | |
983 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
984 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
985 | } | |
986 | ||
987 | spin_unlock(&dq_data_lock); | |
988 | dqput(dquot); | |
989 | return 0; | |
990 | } | |
991 | #endif | |
992 | ||
aff063e2 JK |
993 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
994 | { | |
995 | struct super_block *sb = dentry->d_sb; | |
996 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
997 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
998 | block_t total_count, user_block_count, start_count, ovp_count; | |
0cc091d0 | 999 | u64 avail_node_count; |
aff063e2 JK |
1000 | |
1001 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
1002 | user_block_count = sbi->user_block_count; | |
1003 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
1004 | ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; | |
1005 | buf->f_type = F2FS_SUPER_MAGIC; | |
1006 | buf->f_bsize = sbi->blocksize; | |
1007 | ||
1008 | buf->f_blocks = total_count - start_count; | |
3e6d0b4d | 1009 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; |
daeb433e | 1010 | buf->f_bavail = user_block_count - valid_user_blocks(sbi) - |
80d42145 | 1011 | sbi->current_reserved_blocks; |
aff063e2 | 1012 | |
0cc091d0 JK |
1013 | avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
1014 | ||
1015 | if (avail_node_count > user_block_count) { | |
1016 | buf->f_files = user_block_count; | |
1017 | buf->f_ffree = buf->f_bavail; | |
1018 | } else { | |
1019 | buf->f_files = avail_node_count; | |
1020 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
1021 | buf->f_bavail); | |
1022 | } | |
aff063e2 | 1023 | |
5a20d339 | 1024 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
1025 | buf->f_fsid.val[0] = (u32)id; |
1026 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1027 | ||
ddc34e32 CY |
1028 | #ifdef CONFIG_QUOTA |
1029 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
1030 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
1031 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
1032 | } | |
1033 | #endif | |
aff063e2 JK |
1034 | return 0; |
1035 | } | |
1036 | ||
4b2414d0 CY |
1037 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
1038 | struct super_block *sb) | |
1039 | { | |
1040 | #ifdef CONFIG_QUOTA | |
1041 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1042 | ||
1043 | if (sbi->s_jquota_fmt) { | |
1044 | char *fmtname = ""; | |
1045 | ||
1046 | switch (sbi->s_jquota_fmt) { | |
1047 | case QFMT_VFS_OLD: | |
1048 | fmtname = "vfsold"; | |
1049 | break; | |
1050 | case QFMT_VFS_V0: | |
1051 | fmtname = "vfsv0"; | |
1052 | break; | |
1053 | case QFMT_VFS_V1: | |
1054 | fmtname = "vfsv1"; | |
1055 | break; | |
1056 | } | |
1057 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1058 | } | |
1059 | ||
1060 | if (sbi->s_qf_names[USRQUOTA]) | |
1061 | seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]); | |
1062 | ||
1063 | if (sbi->s_qf_names[GRPQUOTA]) | |
1064 | seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]); | |
1065 | ||
1066 | if (sbi->s_qf_names[PRJQUOTA]) | |
1067 | seq_show_option(seq, "prjjquota", sbi->s_qf_names[PRJQUOTA]); | |
1068 | #endif | |
1069 | } | |
1070 | ||
aff063e2 JK |
1071 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1072 | { | |
1073 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1074 | ||
6aefd93b JK |
1075 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1076 | if (test_opt(sbi, FORCE_FG_GC)) | |
1077 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1078 | else | |
1079 | seq_printf(seq, ",background_gc=%s", "on"); | |
1080 | } else { | |
696c018c | 1081 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1082 | } |
aff063e2 JK |
1083 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1084 | seq_puts(seq, ",disable_roll_forward"); | |
1085 | if (test_opt(sbi, DISCARD)) | |
1086 | seq_puts(seq, ",discard"); | |
1087 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1088 | seq_puts(seq, ",no_heap"); |
1089 | else | |
1090 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1091 | #ifdef CONFIG_F2FS_FS_XATTR |
1092 | if (test_opt(sbi, XATTR_USER)) | |
1093 | seq_puts(seq, ",user_xattr"); | |
1094 | else | |
1095 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1096 | if (test_opt(sbi, INLINE_XATTR)) |
1097 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1098 | else |
1099 | seq_puts(seq, ",noinline_xattr"); | |
6afc662e CY |
1100 | if (test_opt(sbi, INLINE_XATTR_SIZE)) |
1101 | seq_printf(seq, ",inline_xattr_size=%u", | |
1102 | sbi->inline_xattr_size); | |
aff063e2 JK |
1103 | #endif |
1104 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1105 | if (test_opt(sbi, POSIX_ACL)) | |
1106 | seq_puts(seq, ",acl"); | |
1107 | else | |
1108 | seq_puts(seq, ",noacl"); | |
1109 | #endif | |
1110 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1111 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1112 | if (test_opt(sbi, INLINE_DATA)) |
1113 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1114 | else |
1115 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1116 | if (test_opt(sbi, INLINE_DENTRY)) |
1117 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1118 | else |
1119 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1120 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1121 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1122 | if (test_opt(sbi, NOBARRIER)) |
1123 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1124 | if (test_opt(sbi, FASTBOOT)) |
1125 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1126 | if (test_opt(sbi, EXTENT_CACHE)) |
1127 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1128 | else |
1129 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1130 | if (test_opt(sbi, DATA_FLUSH)) |
1131 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1132 | |
1133 | seq_puts(seq, ",mode="); | |
1134 | if (test_opt(sbi, ADAPTIVE)) | |
1135 | seq_puts(seq, "adaptive"); | |
1136 | else if (test_opt(sbi, LFS)) | |
1137 | seq_puts(seq, "lfs"); | |
aff063e2 | 1138 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
ec91538d JK |
1139 | if (F2FS_IO_SIZE_BITS(sbi)) |
1140 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
1141 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1142 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
1143 | seq_printf(seq, ",fault_injection=%u", |
1144 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 1145 | #endif |
0abd675e | 1146 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1147 | if (test_opt(sbi, QUOTA)) |
1148 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1149 | if (test_opt(sbi, USRQUOTA)) |
1150 | seq_puts(seq, ",usrquota"); | |
1151 | if (test_opt(sbi, GRPQUOTA)) | |
1152 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1153 | if (test_opt(sbi, PRJQUOTA)) |
1154 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1155 | #endif |
4b2414d0 | 1156 | f2fs_show_quota_options(seq, sbi->sb); |
aff063e2 JK |
1157 | |
1158 | return 0; | |
1159 | } | |
1160 | ||
498c5e9f YH |
1161 | static void default_options(struct f2fs_sb_info *sbi) |
1162 | { | |
1163 | /* init some FS parameters */ | |
1164 | sbi->active_logs = NR_CURSEG_TYPE; | |
6afc662e | 1165 | sbi->inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
498c5e9f YH |
1166 | |
1167 | set_opt(sbi, BG_GC); | |
39133a50 | 1168 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1169 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1170 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1171 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1172 | set_opt(sbi, NOHEAP); |
1751e8a6 | 1173 | sbi->sb->s_flags |= SB_LAZYTIME; |
69e9e427 | 1174 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 1175 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
1176 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1177 | set_opt(sbi, DISCARD); | |
1178 | } else { | |
1179 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
1180 | } | |
498c5e9f YH |
1181 | |
1182 | #ifdef CONFIG_F2FS_FS_XATTR | |
1183 | set_opt(sbi, XATTR_USER); | |
1184 | #endif | |
1185 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1186 | set_opt(sbi, POSIX_ACL); | |
1187 | #endif | |
36dbd328 CY |
1188 | |
1189 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1190 | f2fs_build_fault_attr(sbi, 0); | |
1191 | #endif | |
498c5e9f YH |
1192 | } |
1193 | ||
ea676733 JK |
1194 | #ifdef CONFIG_QUOTA |
1195 | static int f2fs_enable_quotas(struct super_block *sb); | |
1196 | #endif | |
696c018c NJ |
1197 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1198 | { | |
1199 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1200 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1201 | unsigned long old_sb_flags; |
696c018c | 1202 | int err, active_logs; |
876dc59e GZ |
1203 | bool need_restart_gc = false; |
1204 | bool need_stop_gc = false; | |
9cd81ce3 | 1205 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
2443b8b3 CY |
1206 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1207 | struct f2fs_fault_info ffi = sbi->fault_info; | |
1208 | #endif | |
4b2414d0 CY |
1209 | #ifdef CONFIG_QUOTA |
1210 | int s_jquota_fmt; | |
1211 | char *s_qf_names[MAXQUOTAS]; | |
1212 | int i, j; | |
1213 | #endif | |
696c018c NJ |
1214 | |
1215 | /* | |
1216 | * Save the old mount options in case we | |
1217 | * need to restore them. | |
1218 | */ | |
1219 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1220 | old_sb_flags = sb->s_flags; |
696c018c NJ |
1221 | active_logs = sbi->active_logs; |
1222 | ||
4b2414d0 CY |
1223 | #ifdef CONFIG_QUOTA |
1224 | s_jquota_fmt = sbi->s_jquota_fmt; | |
1225 | for (i = 0; i < MAXQUOTAS; i++) { | |
1226 | if (sbi->s_qf_names[i]) { | |
1227 | s_qf_names[i] = kstrdup(sbi->s_qf_names[i], | |
1228 | GFP_KERNEL); | |
1229 | if (!s_qf_names[i]) { | |
1230 | for (j = 0; j < i; j++) | |
1231 | kfree(s_qf_names[j]); | |
1232 | return -ENOMEM; | |
1233 | } | |
1234 | } else { | |
1235 | s_qf_names[i] = NULL; | |
1236 | } | |
1237 | } | |
1238 | #endif | |
1239 | ||
df728b0f | 1240 | /* recover superblocks we couldn't write due to previous RO mount */ |
1751e8a6 | 1241 | if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { |
df728b0f JK |
1242 | err = f2fs_commit_super(sbi, false); |
1243 | f2fs_msg(sb, KERN_INFO, | |
1244 | "Try to recover all the superblocks, ret: %d", err); | |
1245 | if (!err) | |
1246 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1247 | } | |
1248 | ||
498c5e9f | 1249 | default_options(sbi); |
26666c8a | 1250 | |
696c018c NJ |
1251 | /* parse mount options */ |
1252 | err = parse_options(sb, data); | |
1253 | if (err) | |
1254 | goto restore_opts; | |
1255 | ||
1256 | /* | |
1257 | * Previous and new state of filesystem is RO, | |
876dc59e | 1258 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1259 | */ |
1751e8a6 | 1260 | if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) |
696c018c NJ |
1261 | goto skip; |
1262 | ||
ea676733 | 1263 | #ifdef CONFIG_QUOTA |
1751e8a6 | 1264 | if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { |
0abd675e CY |
1265 | err = dquot_suspend(sb, -1); |
1266 | if (err < 0) | |
1267 | goto restore_opts; | |
1268 | } else { | |
1269 | /* dquot_resume needs RW */ | |
1751e8a6 | 1270 | sb->s_flags &= ~SB_RDONLY; |
ea676733 JK |
1271 | if (sb_any_quota_suspended(sb)) { |
1272 | dquot_resume(sb, -1); | |
1273 | } else if (f2fs_sb_has_quota_ino(sb)) { | |
1274 | err = f2fs_enable_quotas(sb); | |
1275 | if (err) | |
1276 | goto restore_opts; | |
1277 | } | |
0abd675e | 1278 | } |
ea676733 | 1279 | #endif |
9cd81ce3 CY |
1280 | /* disallow enable/disable extent_cache dynamically */ |
1281 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1282 | err = -EINVAL; | |
1283 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1284 | "switch extent_cache option is not allowed"); | |
1285 | goto restore_opts; | |
1286 | } | |
1287 | ||
696c018c NJ |
1288 | /* |
1289 | * We stop the GC thread if FS is mounted as RO | |
1290 | * or if background_gc = off is passed in mount | |
1291 | * option. Also sync the filesystem. | |
1292 | */ | |
1751e8a6 | 1293 | if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) { |
696c018c NJ |
1294 | if (sbi->gc_thread) { |
1295 | stop_gc_thread(sbi); | |
876dc59e | 1296 | need_restart_gc = true; |
696c018c | 1297 | } |
aba291b3 | 1298 | } else if (!sbi->gc_thread) { |
696c018c NJ |
1299 | err = start_gc_thread(sbi); |
1300 | if (err) | |
1301 | goto restore_opts; | |
876dc59e GZ |
1302 | need_stop_gc = true; |
1303 | } | |
1304 | ||
1751e8a6 | 1305 | if (*flags & SB_RDONLY) { |
faa0e55b JK |
1306 | writeback_inodes_sb(sb, WB_REASON_SYNC); |
1307 | sync_inodes_sb(sb); | |
1308 | ||
1309 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1310 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1311 | f2fs_sync_fs(sb, 1); | |
1312 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1313 | } | |
1314 | ||
876dc59e GZ |
1315 | /* |
1316 | * We stop issue flush thread if FS is mounted as RO | |
1317 | * or if flush_merge is not passed in mount option. | |
1318 | */ | |
1751e8a6 | 1319 | if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { |
5eba8c5d JK |
1320 | clear_opt(sbi, FLUSH_MERGE); |
1321 | destroy_flush_cmd_control(sbi, false); | |
1322 | } else { | |
2163d198 GZ |
1323 | err = create_flush_cmd_control(sbi); |
1324 | if (err) | |
a688b9d9 | 1325 | goto restore_gc; |
696c018c NJ |
1326 | } |
1327 | skip: | |
4b2414d0 CY |
1328 | #ifdef CONFIG_QUOTA |
1329 | /* Release old quota file names */ | |
1330 | for (i = 0; i < MAXQUOTAS; i++) | |
1331 | kfree(s_qf_names[i]); | |
1332 | #endif | |
696c018c | 1333 | /* Update the POSIXACL Flag */ |
1751e8a6 LT |
1334 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
1335 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
df728b0f | 1336 | |
f6e1c085 | 1337 | *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME); |
696c018c | 1338 | return 0; |
876dc59e GZ |
1339 | restore_gc: |
1340 | if (need_restart_gc) { | |
1341 | if (start_gc_thread(sbi)) | |
1342 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1343 | "background gc thread has stopped"); |
876dc59e GZ |
1344 | } else if (need_stop_gc) { |
1345 | stop_gc_thread(sbi); | |
1346 | } | |
696c018c | 1347 | restore_opts: |
4b2414d0 CY |
1348 | #ifdef CONFIG_QUOTA |
1349 | sbi->s_jquota_fmt = s_jquota_fmt; | |
1350 | for (i = 0; i < MAXQUOTAS; i++) { | |
1351 | kfree(sbi->s_qf_names[i]); | |
1352 | sbi->s_qf_names[i] = s_qf_names[i]; | |
1353 | } | |
1354 | #endif | |
696c018c NJ |
1355 | sbi->mount_opt = org_mount_opt; |
1356 | sbi->active_logs = active_logs; | |
0abd675e | 1357 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1358 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1359 | sbi->fault_info = ffi; | |
1360 | #endif | |
696c018c NJ |
1361 | return err; |
1362 | } | |
1363 | ||
0abd675e CY |
1364 | #ifdef CONFIG_QUOTA |
1365 | /* Read data from quotafile */ | |
1366 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1367 | size_t len, loff_t off) | |
1368 | { | |
1369 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1370 | struct address_space *mapping = inode->i_mapping; | |
1371 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1372 | int offset = off & (sb->s_blocksize - 1); | |
1373 | int tocopy; | |
1374 | size_t toread; | |
1375 | loff_t i_size = i_size_read(inode); | |
1376 | struct page *page; | |
1377 | char *kaddr; | |
1378 | ||
1379 | if (off > i_size) | |
1380 | return 0; | |
1381 | ||
1382 | if (off + len > i_size) | |
1383 | len = i_size - off; | |
1384 | toread = len; | |
1385 | while (toread > 0) { | |
1386 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1387 | repeat: | |
1388 | page = read_mapping_page(mapping, blkidx, NULL); | |
4e46a023 JK |
1389 | if (IS_ERR(page)) { |
1390 | if (PTR_ERR(page) == -ENOMEM) { | |
1391 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1392 | goto repeat; | |
1393 | } | |
0abd675e | 1394 | return PTR_ERR(page); |
4e46a023 | 1395 | } |
0abd675e CY |
1396 | |
1397 | lock_page(page); | |
1398 | ||
1399 | if (unlikely(page->mapping != mapping)) { | |
1400 | f2fs_put_page(page, 1); | |
1401 | goto repeat; | |
1402 | } | |
1403 | if (unlikely(!PageUptodate(page))) { | |
1404 | f2fs_put_page(page, 1); | |
1405 | return -EIO; | |
1406 | } | |
1407 | ||
1408 | kaddr = kmap_atomic(page); | |
1409 | memcpy(data, kaddr + offset, tocopy); | |
1410 | kunmap_atomic(kaddr); | |
1411 | f2fs_put_page(page, 1); | |
1412 | ||
1413 | offset = 0; | |
1414 | toread -= tocopy; | |
1415 | data += tocopy; | |
1416 | blkidx++; | |
1417 | } | |
1418 | return len; | |
1419 | } | |
1420 | ||
1421 | /* Write to quotafile */ | |
1422 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1423 | const char *data, size_t len, loff_t off) | |
1424 | { | |
1425 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1426 | struct address_space *mapping = inode->i_mapping; | |
1427 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1428 | int offset = off & (sb->s_blocksize - 1); | |
1429 | size_t towrite = len; | |
1430 | struct page *page; | |
1431 | char *kaddr; | |
1432 | int err = 0; | |
1433 | int tocopy; | |
1434 | ||
1435 | while (towrite > 0) { | |
1436 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1437 | towrite); | |
4e46a023 | 1438 | retry: |
0abd675e CY |
1439 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, |
1440 | &page, NULL); | |
4e46a023 JK |
1441 | if (unlikely(err)) { |
1442 | if (err == -ENOMEM) { | |
1443 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1444 | goto retry; | |
1445 | } | |
0abd675e | 1446 | break; |
4e46a023 | 1447 | } |
0abd675e CY |
1448 | |
1449 | kaddr = kmap_atomic(page); | |
1450 | memcpy(kaddr + offset, data, tocopy); | |
1451 | kunmap_atomic(kaddr); | |
1452 | flush_dcache_page(page); | |
1453 | ||
1454 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1455 | page, NULL); | |
1456 | offset = 0; | |
1457 | towrite -= tocopy; | |
1458 | off += tocopy; | |
1459 | data += tocopy; | |
1460 | cond_resched(); | |
1461 | } | |
1462 | ||
1463 | if (len == towrite) | |
6e5b5d41 | 1464 | return err; |
0abd675e CY |
1465 | inode->i_mtime = inode->i_ctime = current_time(inode); |
1466 | f2fs_mark_inode_dirty_sync(inode, false); | |
1467 | return len - towrite; | |
1468 | } | |
1469 | ||
1470 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1471 | { | |
1472 | return F2FS_I(inode)->i_dquot; | |
1473 | } | |
1474 | ||
1475 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1476 | { | |
1477 | return &F2FS_I(inode)->i_reserved_quota; | |
1478 | } | |
1479 | ||
4b2414d0 CY |
1480 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1481 | { | |
1482 | return dquot_quota_on_mount(sbi->sb, sbi->s_qf_names[type], | |
1483 | sbi->s_jquota_fmt, type); | |
1484 | } | |
1485 | ||
ea676733 | 1486 | int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) |
4b2414d0 | 1487 | { |
ea676733 JK |
1488 | int enabled = 0; |
1489 | int i, err; | |
1490 | ||
1491 | if (f2fs_sb_has_quota_ino(sbi->sb) && rdonly) { | |
1492 | err = f2fs_enable_quotas(sbi->sb); | |
1493 | if (err) { | |
1494 | f2fs_msg(sbi->sb, KERN_ERR, | |
1495 | "Cannot turn on quota_ino: %d", err); | |
1496 | return 0; | |
1497 | } | |
1498 | return 1; | |
1499 | } | |
4b2414d0 CY |
1500 | |
1501 | for (i = 0; i < MAXQUOTAS; i++) { | |
1502 | if (sbi->s_qf_names[i]) { | |
ea676733 JK |
1503 | err = f2fs_quota_on_mount(sbi, i); |
1504 | if (!err) { | |
1505 | enabled = 1; | |
1506 | continue; | |
1507 | } | |
1508 | f2fs_msg(sbi->sb, KERN_ERR, | |
1509 | "Cannot turn on quotas: %d on %d", err, i); | |
4b2414d0 CY |
1510 | } |
1511 | } | |
ea676733 JK |
1512 | return enabled; |
1513 | } | |
1514 | ||
1515 | static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, | |
1516 | unsigned int flags) | |
1517 | { | |
1518 | struct inode *qf_inode; | |
1519 | unsigned long qf_inum; | |
1520 | int err; | |
1521 | ||
1522 | BUG_ON(!f2fs_sb_has_quota_ino(sb)); | |
1523 | ||
1524 | qf_inum = f2fs_qf_ino(sb, type); | |
1525 | if (!qf_inum) | |
1526 | return -EPERM; | |
1527 | ||
1528 | qf_inode = f2fs_iget(sb, qf_inum); | |
1529 | if (IS_ERR(qf_inode)) { | |
1530 | f2fs_msg(sb, KERN_ERR, | |
1531 | "Bad quota inode %u:%lu", type, qf_inum); | |
1532 | return PTR_ERR(qf_inode); | |
1533 | } | |
1534 | ||
1535 | /* Don't account quota for quota files to avoid recursion */ | |
1536 | qf_inode->i_flags |= S_NOQUOTA; | |
1537 | err = dquot_enable(qf_inode, type, format_id, flags); | |
1538 | iput(qf_inode); | |
1539 | return err; | |
1540 | } | |
1541 | ||
1542 | static int f2fs_enable_quotas(struct super_block *sb) | |
1543 | { | |
1544 | int type, err = 0; | |
1545 | unsigned long qf_inum; | |
1546 | bool quota_mopt[MAXQUOTAS] = { | |
1547 | test_opt(F2FS_SB(sb), USRQUOTA), | |
1548 | test_opt(F2FS_SB(sb), GRPQUOTA), | |
1549 | test_opt(F2FS_SB(sb), PRJQUOTA), | |
1550 | }; | |
1551 | ||
1552 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; | |
1553 | for (type = 0; type < MAXQUOTAS; type++) { | |
1554 | qf_inum = f2fs_qf_ino(sb, type); | |
1555 | if (qf_inum) { | |
1556 | err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, | |
1557 | DQUOT_USAGE_ENABLED | | |
1558 | (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); | |
1559 | if (err) { | |
1560 | f2fs_msg(sb, KERN_ERR, | |
1561 | "Failed to enable quota tracking " | |
1562 | "(type=%d, err=%d). Please run " | |
1563 | "fsck to fix.", type, err); | |
1564 | for (type--; type >= 0; type--) | |
1565 | dquot_quota_off(sb, type); | |
1566 | return err; | |
1567 | } | |
4b2414d0 CY |
1568 | } |
1569 | } | |
ea676733 | 1570 | return 0; |
4b2414d0 CY |
1571 | } |
1572 | ||
0abd675e CY |
1573 | static int f2fs_quota_sync(struct super_block *sb, int type) |
1574 | { | |
1575 | struct quota_info *dqopt = sb_dqopt(sb); | |
1576 | int cnt; | |
1577 | int ret; | |
1578 | ||
1579 | ret = dquot_writeback_dquots(sb, type); | |
1580 | if (ret) | |
1581 | return ret; | |
1582 | ||
1583 | /* | |
1584 | * Now when everything is written we can discard the pagecache so | |
1585 | * that userspace sees the changes. | |
1586 | */ | |
1587 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1588 | if (type != -1 && cnt != type) | |
1589 | continue; | |
1590 | if (!sb_has_quota_active(sb, cnt)) | |
1591 | continue; | |
1592 | ||
1593 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1594 | if (ret) | |
1595 | return ret; | |
1596 | ||
1597 | inode_lock(dqopt->files[cnt]); | |
1598 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1599 | inode_unlock(dqopt->files[cnt]); | |
1600 | } | |
1601 | return 0; | |
1602 | } | |
1603 | ||
1604 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1605 | const struct path *path) | |
1606 | { | |
1607 | struct inode *inode; | |
1608 | int err; | |
1609 | ||
9a20d391 | 1610 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1611 | if (err) |
1612 | return err; | |
1613 | ||
1614 | err = dquot_quota_on(sb, type, format_id, path); | |
1615 | if (err) | |
1616 | return err; | |
1617 | ||
1618 | inode = d_inode(path->dentry); | |
1619 | ||
1620 | inode_lock(inode); | |
1621 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
cbf17524 | 1622 | f2fs_set_inode_flags(inode); |
0abd675e CY |
1623 | inode_unlock(inode); |
1624 | f2fs_mark_inode_dirty_sync(inode, false); | |
1625 | ||
1626 | return 0; | |
1627 | } | |
1628 | ||
1629 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1630 | { | |
1631 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1632 | int err; | |
1633 | ||
1634 | if (!inode || !igrab(inode)) | |
1635 | return dquot_quota_off(sb, type); | |
1636 | ||
64d29df7 YH |
1637 | err = f2fs_quota_sync(sb, type); |
1638 | if (err) | |
1639 | goto out_put; | |
0abd675e CY |
1640 | |
1641 | err = dquot_quota_off(sb, type); | |
ea676733 | 1642 | if (err || f2fs_sb_has_quota_ino(sb)) |
0abd675e CY |
1643 | goto out_put; |
1644 | ||
1645 | inode_lock(inode); | |
1646 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
cbf17524 | 1647 | f2fs_set_inode_flags(inode); |
0abd675e CY |
1648 | inode_unlock(inode); |
1649 | f2fs_mark_inode_dirty_sync(inode, false); | |
1650 | out_put: | |
1651 | iput(inode); | |
1652 | return err; | |
1653 | } | |
1654 | ||
4b2414d0 | 1655 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1656 | { |
1657 | int type; | |
64d29df7 YH |
1658 | int err; |
1659 | ||
1660 | for (type = 0; type < MAXQUOTAS; type++) { | |
1661 | err = f2fs_quota_off(sb, type); | |
1662 | if (err) { | |
1663 | int ret = dquot_quota_off(sb, type); | |
0abd675e | 1664 | |
64d29df7 YH |
1665 | f2fs_msg(sb, KERN_ERR, |
1666 | "Fail to turn off disk quota " | |
1667 | "(type: %d, err: %d, ret:%d), Please " | |
1668 | "run fsck to fix it.", type, err, ret); | |
1669 | set_sbi_flag(F2FS_SB(sb), SBI_NEED_FSCK); | |
1670 | } | |
1671 | } | |
68673a63 JK |
1672 | /* |
1673 | * In case of checkpoint=disable, we must flush quota blocks. | |
1674 | * This can cause NULL exception for node_inode in end_io, since | |
1675 | * put_super already dropped it. | |
1676 | */ | |
1677 | sync_filesystem(sb); | |
0abd675e CY |
1678 | } |
1679 | ||
3bc5c5b0 SY |
1680 | static void f2fs_truncate_quota_inode_pages(struct super_block *sb) |
1681 | { | |
1682 | struct quota_info *dqopt = sb_dqopt(sb); | |
1683 | int type; | |
1684 | ||
1685 | for (type = 0; type < MAXQUOTAS; type++) { | |
1686 | if (!dqopt->files[type]) | |
1687 | continue; | |
1688 | f2fs_inode_synced(dqopt->files[type]); | |
1689 | } | |
1690 | } | |
1691 | ||
1692 | ||
5c57132e CY |
1693 | int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
1694 | { | |
1695 | *projid = F2FS_I(inode)->i_projid; | |
1696 | return 0; | |
1697 | } | |
1698 | ||
0abd675e CY |
1699 | static const struct dquot_operations f2fs_quota_operations = { |
1700 | .get_reserved_space = f2fs_get_reserved_space, | |
1701 | .write_dquot = dquot_commit, | |
1702 | .acquire_dquot = dquot_acquire, | |
1703 | .release_dquot = dquot_release, | |
1704 | .mark_dirty = dquot_mark_dquot_dirty, | |
1705 | .write_info = dquot_commit_info, | |
1706 | .alloc_dquot = dquot_alloc, | |
1707 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1708 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1709 | .get_next_id = dquot_get_next_id, |
1710 | }; | |
1711 | ||
1712 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1713 | .quota_on = f2fs_quota_on, | |
1714 | .quota_off = f2fs_quota_off, | |
1715 | .quota_sync = f2fs_quota_sync, | |
1716 | .get_state = dquot_get_state, | |
1717 | .set_info = dquot_set_dqinfo, | |
1718 | .get_dqblk = dquot_get_dqblk, | |
1719 | .set_dqblk = dquot_set_dqblk, | |
1720 | .get_nextdqblk = dquot_get_next_dqblk, | |
1721 | }; | |
1722 | #else | |
4b2414d0 | 1723 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1724 | { |
1725 | } | |
1726 | #endif | |
1727 | ||
f62fc9f9 | 1728 | static const struct super_operations f2fs_sops = { |
aff063e2 | 1729 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 1730 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1731 | .destroy_inode = f2fs_destroy_inode, |
1732 | .write_inode = f2fs_write_inode, | |
b3783873 | 1733 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1734 | .show_options = f2fs_show_options, |
0abd675e CY |
1735 | #ifdef CONFIG_QUOTA |
1736 | .quota_read = f2fs_quota_read, | |
1737 | .quota_write = f2fs_quota_write, | |
1738 | .get_dquots = f2fs_get_dquots, | |
1739 | #endif | |
aff063e2 JK |
1740 | .evict_inode = f2fs_evict_inode, |
1741 | .put_super = f2fs_put_super, | |
1742 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1743 | .freeze_fs = f2fs_freeze, |
1744 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1745 | .statfs = f2fs_statfs, |
696c018c | 1746 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1747 | }; |
1748 | ||
0b81d077 JK |
1749 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1750 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1751 | { | |
1752 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1753 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1754 | ctx, len, NULL); | |
1755 | } | |
1756 | ||
1757 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1758 | void *fs_data) | |
1759 | { | |
1760 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1761 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1762 | ctx, len, fs_data, XATTR_CREATE); | |
1763 | } | |
1764 | ||
1765 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1766 | { | |
1767 | return S_ISLNK(inode->i_mode) ? | |
1768 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1769 | } | |
1770 | ||
6f69f0ed | 1771 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1772 | .key_prefix = "f2fs:", |
0b81d077 JK |
1773 | .get_context = f2fs_get_context, |
1774 | .set_context = f2fs_set_context, | |
0b81d077 JK |
1775 | .empty_dir = f2fs_empty_dir, |
1776 | .max_namelen = f2fs_max_namelen, | |
1777 | }; | |
0b81d077 JK |
1778 | #endif |
1779 | ||
aff063e2 JK |
1780 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1781 | u64 ino, u32 generation) | |
1782 | { | |
1783 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1784 | struct inode *inode; | |
1785 | ||
d6b7d4b3 | 1786 | if (check_nid_range(sbi, ino)) |
910bb12d | 1787 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1788 | |
1789 | /* | |
1790 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1791 | * However f2fs_iget currently does appropriate checks to handle stale | |
1792 | * inodes so everything is OK. | |
1793 | */ | |
1794 | inode = f2fs_iget(sb, ino); | |
1795 | if (IS_ERR(inode)) | |
1796 | return ERR_CAST(inode); | |
6bacf52f | 1797 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1798 | /* we didn't find the right inode.. */ |
1799 | iput(inode); | |
1800 | return ERR_PTR(-ESTALE); | |
1801 | } | |
1802 | return inode; | |
1803 | } | |
1804 | ||
1805 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1806 | int fh_len, int fh_type) | |
1807 | { | |
1808 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1809 | f2fs_nfs_get_inode); | |
1810 | } | |
1811 | ||
1812 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1813 | int fh_len, int fh_type) | |
1814 | { | |
1815 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1816 | f2fs_nfs_get_inode); | |
1817 | } | |
1818 | ||
1819 | static const struct export_operations f2fs_export_ops = { | |
1820 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1821 | .fh_to_parent = f2fs_fh_to_parent, | |
1822 | .get_parent = f2fs_get_parent, | |
1823 | }; | |
1824 | ||
e0afc4d6 | 1825 | static loff_t max_file_blocks(void) |
aff063e2 | 1826 | { |
7a2af766 | 1827 | loff_t result = 0; |
aff063e2 JK |
1828 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1829 | ||
7a2af766 CY |
1830 | /* |
1831 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
6afc662e | 1832 | * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more |
7a2af766 CY |
1833 | * space in inode.i_addr, it will be more safe to reassign |
1834 | * result as zero. | |
1835 | */ | |
1836 | ||
aff063e2 JK |
1837 | /* two direct node blocks */ |
1838 | result += (leaf_count * 2); | |
1839 | ||
1840 | /* two indirect node blocks */ | |
1841 | leaf_count *= NIDS_PER_BLOCK; | |
1842 | result += (leaf_count * 2); | |
1843 | ||
1844 | /* one double indirect node block */ | |
1845 | leaf_count *= NIDS_PER_BLOCK; | |
1846 | result += leaf_count; | |
1847 | ||
aff063e2 JK |
1848 | return result; |
1849 | } | |
1850 | ||
fd694733 JK |
1851 | static int __f2fs_commit_super(struct buffer_head *bh, |
1852 | struct f2fs_super_block *super) | |
1853 | { | |
1854 | lock_buffer(bh); | |
1855 | if (super) | |
1856 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
1857 | set_buffer_uptodate(bh); | |
1858 | set_buffer_dirty(bh); | |
1859 | unlock_buffer(bh); | |
1860 | ||
1861 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1862 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1863 | } |
1864 | ||
df728b0f | 1865 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1866 | struct buffer_head *bh) |
9a59b62f | 1867 | { |
fd694733 JK |
1868 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1869 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1870 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1871 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1872 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1873 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1874 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1875 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1876 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1877 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1878 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1879 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1880 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1881 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1882 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1883 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1884 | u64 main_end_blkaddr = main_blkaddr + |
1885 | (segment_count_main << log_blocks_per_seg); | |
1886 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1887 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1888 | |
1889 | if (segment0_blkaddr != cp_blkaddr) { | |
1890 | f2fs_msg(sb, KERN_INFO, | |
1891 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1892 | segment0_blkaddr, cp_blkaddr); | |
1893 | return true; | |
1894 | } | |
1895 | ||
1896 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1897 | sit_blkaddr) { | |
1898 | f2fs_msg(sb, KERN_INFO, | |
1899 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1900 | cp_blkaddr, sit_blkaddr, | |
1901 | segment_count_ckpt << log_blocks_per_seg); | |
1902 | return true; | |
1903 | } | |
1904 | ||
1905 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1906 | nat_blkaddr) { | |
1907 | f2fs_msg(sb, KERN_INFO, | |
1908 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1909 | sit_blkaddr, nat_blkaddr, | |
1910 | segment_count_sit << log_blocks_per_seg); | |
1911 | return true; | |
1912 | } | |
1913 | ||
1914 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1915 | ssa_blkaddr) { | |
1916 | f2fs_msg(sb, KERN_INFO, | |
1917 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1918 | nat_blkaddr, ssa_blkaddr, | |
1919 | segment_count_nat << log_blocks_per_seg); | |
1920 | return true; | |
1921 | } | |
1922 | ||
1923 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
1924 | main_blkaddr) { | |
1925 | f2fs_msg(sb, KERN_INFO, | |
1926 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
1927 | ssa_blkaddr, main_blkaddr, | |
1928 | segment_count_ssa << log_blocks_per_seg); | |
1929 | return true; | |
1930 | } | |
1931 | ||
fd694733 | 1932 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 1933 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 1934 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 1935 | main_blkaddr, |
fd694733 JK |
1936 | segment0_blkaddr + |
1937 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
1938 | segment_count_main << log_blocks_per_seg); |
1939 | return true; | |
fd694733 JK |
1940 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
1941 | int err = 0; | |
1942 | char *res; | |
1943 | ||
1944 | /* fix in-memory information all the time */ | |
1945 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
1946 | segment0_blkaddr) >> log_blocks_per_seg); | |
1947 | ||
1948 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 1949 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
1950 | res = "internally"; |
1951 | } else { | |
1952 | err = __f2fs_commit_super(bh, NULL); | |
1953 | res = err ? "failed" : "done"; | |
1954 | } | |
1955 | f2fs_msg(sb, KERN_INFO, | |
1956 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
1957 | res, main_blkaddr, | |
1958 | segment0_blkaddr + | |
1959 | (segment_count << log_blocks_per_seg), | |
1960 | segment_count_main << log_blocks_per_seg); | |
1961 | if (err) | |
1962 | return true; | |
9a59b62f | 1963 | } |
9a59b62f CY |
1964 | return false; |
1965 | } | |
1966 | ||
df728b0f | 1967 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 1968 | struct buffer_head *bh) |
aff063e2 | 1969 | { |
6e1c70ea JK |
1970 | block_t segment_count, segs_per_sec, secs_per_zone; |
1971 | block_t total_sections, blocks_per_seg; | |
fd694733 JK |
1972 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1973 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1974 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
1975 | unsigned int blocksize; |
1976 | ||
7500de09 | 1977 | if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) { |
a07ef784 NJ |
1978 | f2fs_msg(sb, KERN_INFO, |
1979 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
1980 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
7500de09 | 1981 | return -EINVAL; |
a07ef784 | 1982 | } |
aff063e2 | 1983 | |
5c9b4692 | 1984 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 1985 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 1986 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 1987 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 1988 | PAGE_SIZE); |
7500de09 | 1989 | return -EFSCORRUPTED; |
5c9b4692 | 1990 | } |
1991 | ||
aff063e2 JK |
1992 | /* Currently, support only 4KB block size */ |
1993 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 1994 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
1995 | f2fs_msg(sb, KERN_INFO, |
1996 | "Invalid blocksize (%u), supports only 4KB\n", | |
1997 | blocksize); | |
7500de09 | 1998 | return -EFSCORRUPTED; |
a07ef784 | 1999 | } |
5c9b4692 | 2000 | |
9a59b62f CY |
2001 | /* check log blocks per segment */ |
2002 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
2003 | f2fs_msg(sb, KERN_INFO, | |
2004 | "Invalid log blocks per segment (%u)\n", | |
2005 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
7500de09 | 2006 | return -EFSCORRUPTED; |
9a59b62f CY |
2007 | } |
2008 | ||
55cf9cb6 CY |
2009 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
2010 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
2011 | F2FS_MAX_LOG_SECTOR_SIZE || | |
2012 | le32_to_cpu(raw_super->log_sectorsize) < | |
2013 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
2014 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
2015 | le32_to_cpu(raw_super->log_sectorsize)); | |
7500de09 | 2016 | return -EFSCORRUPTED; |
a07ef784 | 2017 | } |
55cf9cb6 CY |
2018 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
2019 | le32_to_cpu(raw_super->log_sectorsize) != | |
2020 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
2021 | f2fs_msg(sb, KERN_INFO, | |
2022 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
2023 | le32_to_cpu(raw_super->log_sectors_per_block), | |
2024 | le32_to_cpu(raw_super->log_sectorsize)); | |
7500de09 | 2025 | return -EFSCORRUPTED; |
a07ef784 | 2026 | } |
9a59b62f | 2027 | |
6e1c70ea JK |
2028 | segment_count = le32_to_cpu(raw_super->segment_count); |
2029 | segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2030 | secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2031 | total_sections = le32_to_cpu(raw_super->section_count); | |
2032 | ||
2033 | /* blocks_per_seg should be 512, given the above check */ | |
2034 | blocks_per_seg = 1 << le32_to_cpu(raw_super->log_blocks_per_seg); | |
2035 | ||
2036 | if (segment_count > F2FS_MAX_SEGMENT || | |
2037 | segment_count < F2FS_MIN_SEGMENTS) { | |
2038 | f2fs_msg(sb, KERN_INFO, | |
2039 | "Invalid segment count (%u)", | |
2040 | segment_count); | |
7500de09 | 2041 | return -EFSCORRUPTED; |
6e1c70ea JK |
2042 | } |
2043 | ||
2044 | if (total_sections > segment_count || | |
2045 | total_sections < F2FS_MIN_SEGMENTS || | |
2046 | segs_per_sec > segment_count || !segs_per_sec) { | |
2047 | f2fs_msg(sb, KERN_INFO, | |
2048 | "Invalid segment/section count (%u, %u x %u)", | |
2049 | segment_count, total_sections, segs_per_sec); | |
7500de09 | 2050 | return -EFSCORRUPTED; |
6e1c70ea JK |
2051 | } |
2052 | ||
2053 | if ((segment_count / segs_per_sec) < total_sections) { | |
2054 | f2fs_msg(sb, KERN_INFO, | |
2055 | "Small segment_count (%u < %u * %u)", | |
2056 | segment_count, segs_per_sec, total_sections); | |
7500de09 | 2057 | return -EFSCORRUPTED; |
6e1c70ea JK |
2058 | } |
2059 | ||
6e79dc77 | 2060 | if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) { |
6e1c70ea | 2061 | f2fs_msg(sb, KERN_INFO, |
6e79dc77 MB |
2062 | "Wrong segment_count / block_count (%u > %llu)", |
2063 | segment_count, le64_to_cpu(raw_super->block_count)); | |
7500de09 | 2064 | return -EFSCORRUPTED; |
6e1c70ea JK |
2065 | } |
2066 | ||
ce902270 | 2067 | if (secs_per_zone > total_sections || !secs_per_zone) { |
6e1c70ea | 2068 | f2fs_msg(sb, KERN_INFO, |
ce902270 | 2069 | "Wrong secs_per_zone / total_sections (%u, %u)", |
6e1c70ea | 2070 | secs_per_zone, total_sections); |
7500de09 | 2071 | return -EFSCORRUPTED; |
6e1c70ea JK |
2072 | } |
2073 | if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION) { | |
2074 | f2fs_msg(sb, KERN_INFO, | |
2075 | "Corrupted extension count (%u > %u)", | |
2076 | le32_to_cpu(raw_super->extension_count), | |
2077 | F2FS_MAX_EXTENSION); | |
7500de09 | 2078 | return -EFSCORRUPTED; |
6e1c70ea JK |
2079 | } |
2080 | ||
2081 | if (le32_to_cpu(raw_super->cp_payload) > | |
2082 | (blocks_per_seg - F2FS_CP_PACKS)) { | |
2083 | f2fs_msg(sb, KERN_INFO, | |
2084 | "Insane cp_payload (%u > %u)", | |
2085 | le32_to_cpu(raw_super->cp_payload), | |
2086 | blocks_per_seg - F2FS_CP_PACKS); | |
7500de09 | 2087 | return -EFSCORRUPTED; |
6e1c70ea JK |
2088 | } |
2089 | ||
9a59b62f CY |
2090 | /* check reserved ino info */ |
2091 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
2092 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
2093 | le32_to_cpu(raw_super->root_ino) != 3) { | |
2094 | f2fs_msg(sb, KERN_INFO, | |
2095 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
2096 | le32_to_cpu(raw_super->node_ino), | |
2097 | le32_to_cpu(raw_super->meta_ino), | |
2098 | le32_to_cpu(raw_super->root_ino)); | |
7500de09 | 2099 | return -EFSCORRUPTED; |
9a59b62f CY |
2100 | } |
2101 | ||
2102 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ | |
df728b0f | 2103 | if (sanity_check_area_boundary(sbi, bh)) |
7500de09 | 2104 | return -EFSCORRUPTED; |
9a59b62f | 2105 | |
aff063e2 JK |
2106 | return 0; |
2107 | } | |
2108 | ||
984ec63c | 2109 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
2110 | { |
2111 | unsigned int total, fsmeta; | |
577e3495 JK |
2112 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
2113 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 2114 | unsigned int ovp_segments, reserved_segments; |
15d3042a | 2115 | unsigned int main_segs, blocks_per_seg; |
85b26908 CY |
2116 | unsigned int sit_segs, nat_segs; |
2117 | unsigned int sit_bitmap_size, nat_bitmap_size; | |
2118 | unsigned int log_blocks_per_seg; | |
518eefdf | 2119 | unsigned int segment_count_main; |
66727ccc | 2120 | unsigned int cp_pack_start_sum, cp_payload; |
518eefdf | 2121 | block_t user_block_count; |
8cf701f0 | 2122 | int i, j; |
aff063e2 JK |
2123 | |
2124 | total = le32_to_cpu(raw_super->segment_count); | |
2125 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
85b26908 CY |
2126 | sit_segs = le32_to_cpu(raw_super->segment_count_sit); |
2127 | fsmeta += sit_segs; | |
2128 | nat_segs = le32_to_cpu(raw_super->segment_count_nat); | |
2129 | fsmeta += nat_segs; | |
aff063e2 JK |
2130 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); |
2131 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
2132 | ||
6bacf52f | 2133 | if (unlikely(fsmeta >= total)) |
aff063e2 | 2134 | return 1; |
577e3495 | 2135 | |
2040fce8 JK |
2136 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
2137 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
2138 | ||
2139 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
2140 | ovp_segments == 0 || reserved_segments == 0)) { | |
2141 | f2fs_msg(sbi->sb, KERN_ERR, | |
2142 | "Wrong layout: check mkfs.f2fs version"); | |
2143 | return 1; | |
2144 | } | |
2145 | ||
518eefdf CY |
2146 | user_block_count = le64_to_cpu(ckpt->user_block_count); |
2147 | segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
2148 | log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2149 | if (!user_block_count || user_block_count >= | |
2150 | segment_count_main << log_blocks_per_seg) { | |
2151 | f2fs_msg(sbi->sb, KERN_ERR, | |
2152 | "Wrong user_block_count: %u", user_block_count); | |
2153 | return 1; | |
2154 | } | |
2155 | ||
15d3042a JQ |
2156 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
2157 | blocks_per_seg = sbi->blocks_per_seg; | |
2158 | ||
2159 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
2160 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
2161 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
2162 | return 1; | |
8cf701f0 CY |
2163 | for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) { |
2164 | if (le32_to_cpu(ckpt->cur_node_segno[i]) == | |
2165 | le32_to_cpu(ckpt->cur_node_segno[j])) { | |
2166 | f2fs_msg(sbi->sb, KERN_ERR, | |
2167 | "Node segment (%u, %u) has the same " | |
2168 | "segno: %u", i, j, | |
2169 | le32_to_cpu(ckpt->cur_node_segno[i])); | |
2170 | return 1; | |
2171 | } | |
2172 | } | |
15d3042a JQ |
2173 | } |
2174 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
2175 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
2176 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
2177 | return 1; | |
8cf701f0 CY |
2178 | for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) { |
2179 | if (le32_to_cpu(ckpt->cur_data_segno[i]) == | |
2180 | le32_to_cpu(ckpt->cur_data_segno[j])) { | |
2181 | f2fs_msg(sbi->sb, KERN_ERR, | |
2182 | "Data segment (%u, %u) has the same " | |
2183 | "segno: %u", i, j, | |
2184 | le32_to_cpu(ckpt->cur_data_segno[i])); | |
2185 | return 1; | |
2186 | } | |
2187 | } | |
2188 | } | |
2189 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
4ae11e77 | 2190 | for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) { |
8cf701f0 CY |
2191 | if (le32_to_cpu(ckpt->cur_node_segno[i]) == |
2192 | le32_to_cpu(ckpt->cur_data_segno[j])) { | |
2193 | f2fs_msg(sbi->sb, KERN_ERR, | |
4ae11e77 | 2194 | "Node segment (%u) and Data segment (%u)" |
8cf701f0 CY |
2195 | " has the same segno: %u", i, j, |
2196 | le32_to_cpu(ckpt->cur_node_segno[i])); | |
2197 | return 1; | |
2198 | } | |
2199 | } | |
15d3042a JQ |
2200 | } |
2201 | ||
85b26908 CY |
2202 | sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); |
2203 | nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); | |
85b26908 CY |
2204 | |
2205 | if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 || | |
2206 | nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) { | |
2207 | f2fs_msg(sbi->sb, KERN_ERR, | |
2208 | "Wrong bitmap size: sit: %u, nat:%u", | |
2209 | sit_bitmap_size, nat_bitmap_size); | |
2210 | return 1; | |
2211 | } | |
2212 | ||
66727ccc CY |
2213 | cp_pack_start_sum = __start_sum_addr(sbi); |
2214 | cp_payload = __cp_payload(sbi); | |
2215 | if (cp_pack_start_sum < cp_payload + 1 || | |
2216 | cp_pack_start_sum > blocks_per_seg - 1 - | |
2217 | NR_CURSEG_TYPE) { | |
2218 | f2fs_msg(sbi->sb, KERN_ERR, | |
2219 | "Wrong cp_pack_start_sum: %u", | |
2220 | cp_pack_start_sum); | |
2221 | return 1; | |
2222 | } | |
2223 | ||
1e968fdf | 2224 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
2225 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
2226 | return 1; | |
2227 | } | |
aff063e2 JK |
2228 | return 0; |
2229 | } | |
2230 | ||
2231 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
2232 | { | |
2233 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 2234 | int i, j; |
aff063e2 JK |
2235 | |
2236 | sbi->log_sectors_per_block = | |
2237 | le32_to_cpu(raw_super->log_sectors_per_block); | |
2238 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
2239 | sbi->blocksize = 1 << sbi->log_blocksize; | |
2240 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2241 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
2242 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2243 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2244 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
2245 | sbi->total_node_count = | |
2246 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
2247 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
2248 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
2249 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
2250 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 2251 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 2252 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 2253 | |
ab9fa662 | 2254 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 2255 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 2256 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 2257 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 2258 | |
35782b23 JK |
2259 | for (i = 0; i < NR_COUNT_TYPE; i++) |
2260 | atomic_set(&sbi->nr_pages[i], 0); | |
2261 | ||
687de7f1 JK |
2262 | atomic_set(&sbi->wb_sync_req, 0); |
2263 | ||
2658e50d JK |
2264 | INIT_LIST_HEAD(&sbi->s_list); |
2265 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
2266 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
2267 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
2268 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 2269 | spin_lock_init(&sbi->cp_lock); |
1228b482 CY |
2270 | |
2271 | sbi->dirty_device = 0; | |
2272 | spin_lock_init(&sbi->dev_lock); | |
aff063e2 JK |
2273 | } |
2274 | ||
523be8a6 JK |
2275 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
2276 | { | |
35782b23 | 2277 | int err; |
41382ec4 | 2278 | |
513c5f37 JK |
2279 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
2280 | if (err) | |
2281 | return err; | |
2282 | ||
f97fcf8a | 2283 | err = percpu_counter_init(&sbi->total_valid_inode_count, 0, |
41382ec4 | 2284 | GFP_KERNEL); |
f97fcf8a CY |
2285 | if (err) |
2286 | percpu_counter_destroy(&sbi->alloc_valid_block_count); | |
2287 | ||
2288 | return err; | |
523be8a6 JK |
2289 | } |
2290 | ||
178053e2 | 2291 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 2292 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 2293 | { |
3c62be17 | 2294 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
2295 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
2296 | sector_t sector = 0; | |
2297 | struct blk_zone *zones; | |
2298 | unsigned int i, nr_zones; | |
2299 | unsigned int n = 0; | |
2300 | int err = -EIO; | |
2301 | ||
2302 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
2303 | return 0; | |
2304 | ||
3c62be17 | 2305 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 2306 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 2307 | return -EINVAL; |
f99e8648 | 2308 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
2309 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2310 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2311 | return -EINVAL; | |
178053e2 | 2312 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2313 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2314 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2315 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2316 | FDEV(devi).nr_blkz++; |
178053e2 | 2317 | |
3c62be17 JK |
2318 | FDEV(devi).blkz_type = kmalloc(FDEV(devi).nr_blkz, GFP_KERNEL); |
2319 | if (!FDEV(devi).blkz_type) | |
178053e2 DLM |
2320 | return -ENOMEM; |
2321 | ||
2322 | #define F2FS_REPORT_NR_ZONES 4096 | |
2323 | ||
2324 | zones = kcalloc(F2FS_REPORT_NR_ZONES, sizeof(struct blk_zone), | |
2325 | GFP_KERNEL); | |
2326 | if (!zones) | |
2327 | return -ENOMEM; | |
2328 | ||
2329 | /* Get block zones type */ | |
2330 | while (zones && sector < nr_sectors) { | |
2331 | ||
2332 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2333 | err = blkdev_report_zones(bdev, sector, | |
2334 | zones, &nr_zones, | |
2335 | GFP_KERNEL); | |
2336 | if (err) | |
2337 | break; | |
2338 | if (!nr_zones) { | |
2339 | err = -EIO; | |
2340 | break; | |
2341 | } | |
2342 | ||
2343 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2344 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2345 | sector += zones[i].len; |
2346 | n++; | |
2347 | } | |
2348 | } | |
2349 | ||
2350 | kfree(zones); | |
2351 | ||
2352 | return err; | |
2353 | } | |
2354 | #endif | |
2355 | ||
9076a75f GZ |
2356 | /* |
2357 | * Read f2fs raw super block. | |
2b39e907 SL |
2358 | * Because we have two copies of super block, so read both of them |
2359 | * to get the first valid one. If any one of them is broken, we pass | |
2360 | * them recovery flag back to the caller. | |
9076a75f | 2361 | */ |
df728b0f | 2362 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2363 | struct f2fs_super_block **raw_super, |
e8240f65 | 2364 | int *valid_super_block, int *recovery) |
14d7e9de | 2365 | { |
df728b0f | 2366 | struct super_block *sb = sbi->sb; |
2b39e907 | 2367 | int block; |
e8240f65 | 2368 | struct buffer_head *bh; |
fd694733 | 2369 | struct f2fs_super_block *super; |
da554e48 | 2370 | int err = 0; |
14d7e9de | 2371 | |
b39f0de2 YH |
2372 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2373 | if (!super) | |
2374 | return -ENOMEM; | |
2b39e907 SL |
2375 | |
2376 | for (block = 0; block < 2; block++) { | |
2377 | bh = sb_bread(sb, block); | |
2378 | if (!bh) { | |
2379 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2380 | block + 1); |
2b39e907 SL |
2381 | err = -EIO; |
2382 | continue; | |
2383 | } | |
14d7e9de | 2384 | |
2b39e907 | 2385 | /* sanity checking of raw super */ |
7500de09 IZ |
2386 | err = sanity_check_raw_super(sbi, bh); |
2387 | if (err) { | |
2b39e907 SL |
2388 | f2fs_msg(sb, KERN_ERR, |
2389 | "Can't find valid F2FS filesystem in %dth superblock", | |
2390 | block + 1); | |
2b39e907 SL |
2391 | brelse(bh); |
2392 | continue; | |
2393 | } | |
14d7e9de | 2394 | |
2b39e907 | 2395 | if (!*raw_super) { |
fd694733 JK |
2396 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2397 | sizeof(*super)); | |
2b39e907 SL |
2398 | *valid_super_block = block; |
2399 | *raw_super = super; | |
2400 | } | |
2401 | brelse(bh); | |
da554e48 | 2402 | } |
2403 | ||
2b39e907 SL |
2404 | /* Fail to read any one of the superblocks*/ |
2405 | if (err < 0) | |
2406 | *recovery = 1; | |
da554e48 | 2407 | |
da554e48 | 2408 | /* No valid superblock */ |
2b39e907 | 2409 | if (!*raw_super) |
b39f0de2 | 2410 | kfree(super); |
2b39e907 SL |
2411 | else |
2412 | err = 0; | |
da554e48 | 2413 | |
2b39e907 | 2414 | return err; |
14d7e9de | 2415 | } |
2416 | ||
fd694733 | 2417 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2418 | { |
5d909cdb | 2419 | struct buffer_head *bh; |
26d815ad JK |
2420 | int err; |
2421 | ||
df728b0f JK |
2422 | if ((recover && f2fs_readonly(sbi->sb)) || |
2423 | bdev_read_only(sbi->sb->s_bdev)) { | |
2424 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2425 | return -EROFS; |
df728b0f | 2426 | } |
f2353d7b | 2427 | |
fd694733 JK |
2428 | /* write back-up superblock first */ |
2429 | bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); | |
5d909cdb JK |
2430 | if (!bh) |
2431 | return -EIO; | |
fd694733 | 2432 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2433 | brelse(bh); |
c5bda1c8 CY |
2434 | |
2435 | /* if we are in recovery path, skip writing valid superblock */ | |
2436 | if (recover || err) | |
5d909cdb | 2437 | return err; |
26d815ad JK |
2438 | |
2439 | /* write current valid superblock */ | |
fd694733 JK |
2440 | bh = sb_getblk(sbi->sb, sbi->valid_super_block); |
2441 | if (!bh) | |
2442 | return -EIO; | |
2443 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2444 | brelse(bh); | |
2445 | return err; | |
26d815ad JK |
2446 | } |
2447 | ||
3c62be17 JK |
2448 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2449 | { | |
2450 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2451 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2452 | int i; |
2453 | ||
7bb3a371 MS |
2454 | /* Initialize single device information */ |
2455 | if (!RDEV(0).path[0]) { | |
2456 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2457 | return 0; |
7bb3a371 MS |
2458 | max_devices = 1; |
2459 | } | |
3c62be17 | 2460 | |
7bb3a371 MS |
2461 | /* |
2462 | * Initialize multiple devices information, or single | |
2463 | * zoned block device information. | |
2464 | */ | |
2465 | sbi->devs = kcalloc(max_devices, sizeof(struct f2fs_dev_info), | |
2466 | GFP_KERNEL); | |
2467 | if (!sbi->devs) | |
2468 | return -ENOMEM; | |
3c62be17 | 2469 | |
7bb3a371 | 2470 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2471 | |
7bb3a371 MS |
2472 | if (i > 0 && !RDEV(i).path[0]) |
2473 | break; | |
2474 | ||
2475 | if (max_devices == 1) { | |
2476 | /* Single zoned block device mount */ | |
2477 | FDEV(0).bdev = | |
2478 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2479 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2480 | } else { |
2481 | /* Multi-device mount */ | |
2482 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2483 | FDEV(i).total_segments = | |
2484 | le32_to_cpu(RDEV(i).total_segments); | |
2485 | if (i == 0) { | |
2486 | FDEV(i).start_blk = 0; | |
2487 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2488 | (FDEV(i).total_segments << | |
2489 | sbi->log_blocks_per_seg) - 1 + | |
2490 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2491 | } else { | |
2492 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2493 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2494 | (FDEV(i).total_segments << | |
2495 | sbi->log_blocks_per_seg) - 1; | |
2496 | } | |
2497 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2498 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2499 | } |
3c62be17 JK |
2500 | if (IS_ERR(FDEV(i).bdev)) |
2501 | return PTR_ERR(FDEV(i).bdev); | |
2502 | ||
2503 | /* to release errored devices */ | |
2504 | sbi->s_ndevs = i + 1; | |
2505 | ||
2506 | #ifdef CONFIG_BLK_DEV_ZONED | |
2507 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
2508 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
2509 | f2fs_msg(sbi->sb, KERN_ERR, | |
2510 | "Zoned block device feature not enabled\n"); | |
2511 | return -EINVAL; | |
2512 | } | |
2513 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
2514 | if (init_blkz_info(sbi, i)) { | |
2515 | f2fs_msg(sbi->sb, KERN_ERR, | |
2516 | "Failed to initialize F2FS blkzone information"); | |
2517 | return -EINVAL; | |
2518 | } | |
7bb3a371 MS |
2519 | if (max_devices == 1) |
2520 | break; | |
3c62be17 JK |
2521 | f2fs_msg(sbi->sb, KERN_INFO, |
2522 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
2523 | i, FDEV(i).path, | |
2524 | FDEV(i).total_segments, | |
2525 | FDEV(i).start_blk, FDEV(i).end_blk, | |
2526 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
2527 | "Host-aware" : "Host-managed"); | |
2528 | continue; | |
2529 | } | |
2530 | #endif | |
2531 | f2fs_msg(sbi->sb, KERN_INFO, | |
2532 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
2533 | i, FDEV(i).path, | |
2534 | FDEV(i).total_segments, | |
2535 | FDEV(i).start_blk, FDEV(i).end_blk); | |
2536 | } | |
0a595eba JK |
2537 | f2fs_msg(sbi->sb, KERN_INFO, |
2538 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
2539 | return 0; |
2540 | } | |
2541 | ||
aff063e2 JK |
2542 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
2543 | { | |
2544 | struct f2fs_sb_info *sbi; | |
da554e48 | 2545 | struct f2fs_super_block *raw_super; |
aff063e2 | 2546 | struct inode *root; |
99e3e858 | 2547 | int err; |
2adc3505 | 2548 | bool retry = true, need_fsck = false; |
dabc4a5c | 2549 | char *options = NULL; |
e8240f65 | 2550 | int recovery, i, valid_super_block; |
8f1dbbbb | 2551 | struct curseg_info *seg_i; |
aff063e2 | 2552 | |
ed2e621a | 2553 | try_onemore: |
da554e48 | 2554 | err = -EINVAL; |
2555 | raw_super = NULL; | |
e8240f65 | 2556 | valid_super_block = -1; |
da554e48 | 2557 | recovery = 0; |
2558 | ||
aff063e2 JK |
2559 | /* allocate memory for f2fs-specific super block info */ |
2560 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
2561 | if (!sbi) | |
2562 | return -ENOMEM; | |
2563 | ||
df728b0f JK |
2564 | sbi->sb = sb; |
2565 | ||
43b6573b KM |
2566 | /* Load the checksum driver */ |
2567 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
2568 | if (IS_ERR(sbi->s_chksum_driver)) { | |
2569 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
2570 | err = PTR_ERR(sbi->s_chksum_driver); | |
2571 | sbi->s_chksum_driver = NULL; | |
2572 | goto free_sbi; | |
2573 | } | |
2574 | ||
ff9234ad | 2575 | /* set a block size */ |
6bacf52f | 2576 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 2577 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 2578 | goto free_sbi; |
a07ef784 | 2579 | } |
aff063e2 | 2580 | |
df728b0f | 2581 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 2582 | &recovery); |
9076a75f GZ |
2583 | if (err) |
2584 | goto free_sbi; | |
2585 | ||
5fb08372 | 2586 | sb->s_fs_info = sbi; |
52763a4b JK |
2587 | sbi->raw_super = raw_super; |
2588 | ||
704956ec CY |
2589 | /* precompute checksum seed for metadata */ |
2590 | if (f2fs_sb_has_inode_chksum(sb)) | |
2591 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, | |
2592 | sizeof(raw_super->uuid)); | |
2593 | ||
d1b959c8 DLM |
2594 | /* |
2595 | * The BLKZONED feature indicates that the drive was formatted with | |
2596 | * zone alignment optimization. This is optional for host-aware | |
2597 | * devices, but mandatory for host-managed zoned block devices. | |
2598 | */ | |
2599 | #ifndef CONFIG_BLK_DEV_ZONED | |
2600 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
2601 | f2fs_msg(sb, KERN_ERR, | |
2602 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2603 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2604 | goto free_sb_buf; |
2605 | } | |
d1b959c8 | 2606 | #endif |
498c5e9f | 2607 | default_options(sbi); |
aff063e2 | 2608 | /* parse mount options */ |
dabc4a5c JK |
2609 | options = kstrdup((const char *)data, GFP_KERNEL); |
2610 | if (data && !options) { | |
2611 | err = -ENOMEM; | |
aff063e2 | 2612 | goto free_sb_buf; |
dabc4a5c JK |
2613 | } |
2614 | ||
2615 | err = parse_options(sb, options); | |
2616 | if (err) | |
2617 | goto free_options; | |
aff063e2 | 2618 | |
e0afc4d6 CY |
2619 | sbi->max_file_blocks = max_file_blocks(); |
2620 | sb->s_maxbytes = sbi->max_file_blocks << | |
2621 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2622 | sb->s_max_links = F2FS_LINK_MAX; |
2623 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2624 | ||
0abd675e CY |
2625 | #ifdef CONFIG_QUOTA |
2626 | sb->dq_op = &f2fs_quota_operations; | |
ea676733 JK |
2627 | if (f2fs_sb_has_quota_ino(sb)) |
2628 | sb->s_qcop = &dquot_quotactl_sysfile_ops; | |
2629 | else | |
2630 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2631 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
0abd675e CY |
2632 | #endif |
2633 | ||
aff063e2 | 2634 | sb->s_op = &f2fs_sops; |
ffcc4182 | 2635 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
0b81d077 | 2636 | sb->s_cop = &f2fs_cryptops; |
ffcc4182 | 2637 | #endif |
aff063e2 JK |
2638 | sb->s_xattr = f2fs_xattr_handlers; |
2639 | sb->s_export_op = &f2fs_export_ops; | |
2640 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 | 2641 | sb->s_time_gran = 1; |
1751e8a6 LT |
2642 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
2643 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
85787090 | 2644 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
aff063e2 JK |
2645 | |
2646 | /* init f2fs-specific super block info */ | |
e8240f65 | 2647 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2648 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2649 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2650 | init_rwsem(&sbi->node_write); |
59c9081b | 2651 | init_rwsem(&sbi->node_change); |
315df839 JK |
2652 | |
2653 | /* disallow all the data/node/meta page writes */ | |
2654 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2655 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2656 | |
b0af6d49 CY |
2657 | /* init iostat info */ |
2658 | spin_lock_init(&sbi->iostat_lock); | |
2659 | sbi->iostat_enable = false; | |
2660 | ||
458e6197 | 2661 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2662 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2663 | int j; | |
2664 | ||
2665 | sbi->write_io[i] = kmalloc(n * sizeof(struct f2fs_bio_info), | |
2666 | GFP_KERNEL); | |
b63def91 CJ |
2667 | if (!sbi->write_io[i]) { |
2668 | err = -ENOMEM; | |
a912b54d | 2669 | goto free_options; |
b63def91 | 2670 | } |
a912b54d JK |
2671 | |
2672 | for (j = HOT; j < n; j++) { | |
2673 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2674 | sbi->write_io[i][j].sbi = sbi; | |
2675 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2676 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2677 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2678 | } |
458e6197 | 2679 | } |
971767ca | 2680 | |
b873b798 | 2681 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2682 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2683 | init_sb_info(sbi); |
2684 | ||
523be8a6 JK |
2685 | err = init_percpu_info(sbi); |
2686 | if (err) | |
2687 | goto free_options; | |
2688 | ||
0a595eba JK |
2689 | if (F2FS_IO_SIZE(sbi) > 1) { |
2690 | sbi->write_io_dummy = | |
a3ebfe4f | 2691 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2692 | if (!sbi->write_io_dummy) { |
2693 | err = -ENOMEM; | |
0a595eba | 2694 | goto free_options; |
1727f317 | 2695 | } |
0a595eba JK |
2696 | } |
2697 | ||
aff063e2 JK |
2698 | /* get an inode for meta space */ |
2699 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2700 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2701 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2702 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2703 | goto free_io_dummy; |
aff063e2 JK |
2704 | } |
2705 | ||
2706 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2707 | if (err) { |
2708 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2709 | goto free_meta_inode; |
a07ef784 | 2710 | } |
aff063e2 | 2711 | |
3c62be17 JK |
2712 | /* Initialize device list */ |
2713 | err = f2fs_scan_devices(sbi); | |
2714 | if (err) { | |
2715 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2716 | goto free_devices; | |
2717 | } | |
2718 | ||
aff063e2 JK |
2719 | sbi->total_valid_node_count = |
2720 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2721 | percpu_counter_set(&sbi->total_valid_inode_count, |
2722 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2723 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2724 | sbi->total_valid_block_count = | |
2725 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2726 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2727 | sbi->reserved_blocks = 0; |
80d42145 | 2728 | sbi->current_reserved_blocks = 0; |
41382ec4 | 2729 | |
c227f912 CY |
2730 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2731 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2732 | spin_lock_init(&sbi->inode_lock[i]); | |
2733 | } | |
aff063e2 | 2734 | |
1dcc336b CY |
2735 | init_extent_cache_info(sbi); |
2736 | ||
6451e041 | 2737 | init_ino_entry_info(sbi); |
aff063e2 JK |
2738 | |
2739 | /* setup f2fs internal modules */ | |
2740 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2741 | if (err) { |
2742 | f2fs_msg(sb, KERN_ERR, | |
2743 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2744 | goto free_sm; |
a07ef784 | 2745 | } |
aff063e2 | 2746 | err = build_node_manager(sbi); |
a07ef784 NJ |
2747 | if (err) { |
2748 | f2fs_msg(sb, KERN_ERR, | |
2749 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2750 | goto free_nm; |
a07ef784 | 2751 | } |
aff063e2 | 2752 | |
8f1dbbbb SL |
2753 | /* For write statistics */ |
2754 | if (sb->s_bdev->bd_part) | |
2755 | sbi->sectors_written_start = | |
2756 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2757 | ||
2758 | /* Read accumulated write IO statistics if exists */ | |
2759 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2760 | if (__exist_node_summaries(sbi)) | |
2761 | sbi->kbytes_written = | |
b2dde6fc | 2762 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2763 | |
aff063e2 JK |
2764 | build_gc_manager(sbi); |
2765 | ||
2766 | /* get an inode for node space */ | |
2767 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2768 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2769 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2770 | err = PTR_ERR(sbi->node_inode); |
2771 | goto free_nm; | |
2772 | } | |
2773 | ||
2658e50d JK |
2774 | f2fs_join_shrinker(sbi); |
2775 | ||
aa51d08a JK |
2776 | err = f2fs_build_stats(sbi); |
2777 | if (err) | |
2778 | goto free_nm; | |
2779 | ||
aff063e2 JK |
2780 | /* read root inode and dentry */ |
2781 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2782 | if (IS_ERR(root)) { | |
a07ef784 | 2783 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 JK |
2784 | err = PTR_ERR(root); |
2785 | goto free_node_inode; | |
2786 | } | |
8f99a946 | 2787 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2788 | iput(root); |
8f99a946 | 2789 | err = -EINVAL; |
9d847950 | 2790 | goto free_node_inode; |
8f99a946 | 2791 | } |
aff063e2 JK |
2792 | |
2793 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2794 | if (!sb->s_root) { | |
2795 | err = -ENOMEM; | |
2796 | goto free_root_inode; | |
2797 | } | |
2798 | ||
dc6b2055 | 2799 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2800 | if (err) |
a398101a | 2801 | goto free_root_inode; |
b59d0bae | 2802 | |
ea676733 JK |
2803 | #ifdef CONFIG_QUOTA |
2804 | /* | |
2805 | * Turn on quotas which were not enabled for read-only mounts if | |
2806 | * filesystem has quota feature, so that they are updated correctly. | |
2807 | */ | |
2808 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) { | |
2809 | err = f2fs_enable_quotas(sb); | |
2810 | if (err) { | |
2811 | f2fs_msg(sb, KERN_ERR, | |
2812 | "Cannot turn on quotas: error %d", err); | |
2813 | goto free_sysfs; | |
2814 | } | |
2815 | } | |
2816 | #endif | |
4b2414d0 CY |
2817 | /* if there are nt orphan nodes free them */ |
2818 | err = recover_orphan_inodes(sbi); | |
2819 | if (err) | |
ea676733 | 2820 | goto free_meta; |
4b2414d0 | 2821 | |
6437d1b0 JK |
2822 | /* recover fsynced data */ |
2823 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2824 | /* |
2825 | * mount should be failed, when device has readonly mode, and | |
2826 | * previous checkpoint was not done by clean system shutdown. | |
2827 | */ | |
2828 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2829 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2830 | err = -EROFS; |
4b2414d0 | 2831 | goto free_meta; |
081d78c2 | 2832 | } |
2adc3505 CY |
2833 | |
2834 | if (need_fsck) | |
2835 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2836 | ||
a468f0ef JK |
2837 | if (!retry) |
2838 | goto skip_recovery; | |
2839 | ||
6781eabb JK |
2840 | err = recover_fsync_data(sbi, false); |
2841 | if (err < 0) { | |
2adc3505 | 2842 | need_fsck = true; |
6437d1b0 | 2843 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2844 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 2845 | goto free_meta; |
ed2e621a | 2846 | } |
6781eabb JK |
2847 | } else { |
2848 | err = recover_fsync_data(sbi, true); | |
2849 | ||
2850 | if (!f2fs_readonly(sb) && err > 0) { | |
2851 | err = -EINVAL; | |
2852 | f2fs_msg(sb, KERN_ERR, | |
2853 | "Need to recover fsync data"); | |
ea676733 | 2854 | goto free_meta; |
6781eabb | 2855 | } |
6437d1b0 | 2856 | } |
a468f0ef | 2857 | skip_recovery: |
315df839 JK |
2858 | /* recover_fsync_data() cleared this already */ |
2859 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2860 | |
6437d1b0 JK |
2861 | /* |
2862 | * If filesystem is not mounted as read-only then | |
2863 | * do start the gc_thread. | |
2864 | */ | |
6c029932 | 2865 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2866 | /* After POR, we can run background GC thread.*/ |
2867 | err = start_gc_thread(sbi); | |
2868 | if (err) | |
4b2414d0 | 2869 | goto free_meta; |
6437d1b0 | 2870 | } |
dabc4a5c | 2871 | kfree(options); |
da554e48 | 2872 | |
2873 | /* recover broken superblock */ | |
f2353d7b | 2874 | if (recovery) { |
41214b3c CY |
2875 | err = f2fs_commit_super(sbi, true); |
2876 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2877 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2878 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2879 | } |
2880 | ||
1200abb2 JK |
2881 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2882 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2883 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2884 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2885 | return 0; |
6437d1b0 | 2886 | |
4b2414d0 | 2887 | free_meta: |
ea676733 | 2888 | #ifdef CONFIG_QUOTA |
3bc5c5b0 | 2889 | f2fs_truncate_quota_inode_pages(sb); |
ea676733 JK |
2890 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) |
2891 | f2fs_quota_off_umount(sbi->sb); | |
2892 | #endif | |
4b2414d0 CY |
2893 | /* |
2894 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2895 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2896 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2897 | * falls into an infinite loop in sync_meta_pages(). | |
2898 | */ | |
2899 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
ea676733 | 2900 | #ifdef CONFIG_QUOTA |
4b2414d0 | 2901 | free_sysfs: |
ea676733 | 2902 | #endif |
dc6b2055 | 2903 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2904 | free_root_inode: |
2905 | dput(sb->s_root); | |
2906 | sb->s_root = NULL; | |
2907 | free_node_inode: | |
bb5dada7 | 2908 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
2658e50d | 2909 | mutex_lock(&sbi->umount_mutex); |
d41065e2 | 2910 | release_ino_entry(sbi, true); |
2658e50d | 2911 | f2fs_leave_shrinker(sbi); |
aff063e2 | 2912 | iput(sbi->node_inode); |
2658e50d | 2913 | mutex_unlock(&sbi->umount_mutex); |
aa51d08a | 2914 | f2fs_destroy_stats(sbi); |
aff063e2 JK |
2915 | free_nm: |
2916 | destroy_node_manager(sbi); | |
2917 | free_sm: | |
2918 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2919 | free_devices: |
2920 | destroy_device_list(sbi); | |
aff063e2 JK |
2921 | kfree(sbi->ckpt); |
2922 | free_meta_inode: | |
2923 | make_bad_inode(sbi->meta_inode); | |
2924 | iput(sbi->meta_inode); | |
0a595eba JK |
2925 | free_io_dummy: |
2926 | mempool_destroy(sbi->write_io_dummy); | |
dabc4a5c | 2927 | free_options: |
a912b54d JK |
2928 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2929 | kfree(sbi->write_io[i]); | |
523be8a6 | 2930 | destroy_percpu_info(sbi); |
4b2414d0 CY |
2931 | #ifdef CONFIG_QUOTA |
2932 | for (i = 0; i < MAXQUOTAS; i++) | |
2933 | kfree(sbi->s_qf_names[i]); | |
2934 | #endif | |
dabc4a5c | 2935 | kfree(options); |
aff063e2 | 2936 | free_sb_buf: |
b39f0de2 | 2937 | kfree(raw_super); |
aff063e2 | 2938 | free_sbi: |
43b6573b KM |
2939 | if (sbi->s_chksum_driver) |
2940 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2941 | kfree(sbi); |
ed2e621a JK |
2942 | |
2943 | /* give only one another chance */ | |
2944 | if (retry) { | |
9df47ba7 | 2945 | retry = false; |
ed2e621a JK |
2946 | shrink_dcache_sb(sb); |
2947 | goto try_onemore; | |
2948 | } | |
aff063e2 JK |
2949 | return err; |
2950 | } | |
2951 | ||
2952 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2953 | const char *dev_name, void *data) | |
2954 | { | |
2955 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2956 | } | |
2957 | ||
30a5537f JK |
2958 | static void kill_f2fs_super(struct super_block *sb) |
2959 | { | |
cce13252 | 2960 | if (sb->s_root) { |
caf0047e | 2961 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2962 | stop_gc_thread(F2FS_SB(sb)); |
2963 | stop_discard_thread(F2FS_SB(sb)); | |
2964 | } | |
30a5537f JK |
2965 | kill_block_super(sb); |
2966 | } | |
2967 | ||
aff063e2 JK |
2968 | static struct file_system_type f2fs_fs_type = { |
2969 | .owner = THIS_MODULE, | |
2970 | .name = "f2fs", | |
2971 | .mount = f2fs_mount, | |
30a5537f | 2972 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2973 | .fs_flags = FS_REQUIRES_DEV, |
2974 | }; | |
7f78e035 | 2975 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2976 | |
6e6093a8 | 2977 | static int __init init_inodecache(void) |
aff063e2 | 2978 | { |
5d097056 VD |
2979 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2980 | sizeof(struct f2fs_inode_info), 0, | |
2981 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2982 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2983 | return -ENOMEM; |
2984 | return 0; | |
2985 | } | |
2986 | ||
2987 | static void destroy_inodecache(void) | |
2988 | { | |
2989 | /* | |
2990 | * Make sure all delayed rcu free inodes are flushed before we | |
2991 | * destroy cache. | |
2992 | */ | |
2993 | rcu_barrier(); | |
2994 | kmem_cache_destroy(f2fs_inode_cachep); | |
2995 | } | |
2996 | ||
2997 | static int __init init_f2fs_fs(void) | |
2998 | { | |
2999 | int err; | |
3000 | ||
dc53bca7 AP |
3001 | if (PAGE_SIZE != F2FS_BLKSIZE) { |
3002 | printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n", | |
3003 | PAGE_SIZE, F2FS_BLKSIZE); | |
3004 | return -EINVAL; | |
3005 | } | |
3006 | ||
c0508650 JK |
3007 | f2fs_build_trace_ios(); |
3008 | ||
aff063e2 JK |
3009 | err = init_inodecache(); |
3010 | if (err) | |
3011 | goto fail; | |
3012 | err = create_node_manager_caches(); | |
3013 | if (err) | |
9890ff3f | 3014 | goto free_inodecache; |
7fd9e544 | 3015 | err = create_segment_manager_caches(); |
aff063e2 | 3016 | if (err) |
9890ff3f | 3017 | goto free_node_manager_caches; |
aff063e2 JK |
3018 | err = create_checkpoint_caches(); |
3019 | if (err) | |
06292073 | 3020 | goto free_segment_manager_caches; |
1dcc336b CY |
3021 | err = create_extent_cache(); |
3022 | if (err) | |
3023 | goto free_checkpoint_caches; | |
dc6b2055 | 3024 | err = f2fs_init_sysfs(); |
a398101a | 3025 | if (err) |
1dcc336b | 3026 | goto free_extent_cache; |
2658e50d | 3027 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 3028 | if (err) |
a398101a | 3029 | goto free_sysfs; |
2658e50d JK |
3030 | err = register_filesystem(&f2fs_fs_type); |
3031 | if (err) | |
3032 | goto free_shrinker; | |
787c7b8c CY |
3033 | err = f2fs_create_root_stats(); |
3034 | if (err) | |
3035 | goto free_filesystem; | |
9890ff3f ZH |
3036 | return 0; |
3037 | ||
787c7b8c CY |
3038 | free_filesystem: |
3039 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
3040 | free_shrinker: |
3041 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 3042 | free_sysfs: |
dc6b2055 | 3043 | f2fs_exit_sysfs(); |
1dcc336b CY |
3044 | free_extent_cache: |
3045 | destroy_extent_cache(); | |
9890ff3f ZH |
3046 | free_checkpoint_caches: |
3047 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
3048 | free_segment_manager_caches: |
3049 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
3050 | free_node_manager_caches: |
3051 | destroy_node_manager_caches(); | |
3052 | free_inodecache: | |
3053 | destroy_inodecache(); | |
aff063e2 JK |
3054 | fail: |
3055 | return err; | |
3056 | } | |
3057 | ||
3058 | static void __exit exit_f2fs_fs(void) | |
3059 | { | |
4589d25d | 3060 | f2fs_destroy_root_stats(); |
aff063e2 | 3061 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 3062 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 3063 | f2fs_exit_sysfs(); |
fdf6c8be | 3064 | destroy_extent_cache(); |
aff063e2 | 3065 | destroy_checkpoint_caches(); |
5dcd8a71 | 3066 | destroy_segment_manager_caches(); |
aff063e2 JK |
3067 | destroy_node_manager_caches(); |
3068 | destroy_inodecache(); | |
351f4fba | 3069 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
3070 | } |
3071 | ||
3072 | module_init(init_f2fs_fs) | |
3073 | module_exit(exit_f2fs_fs) | |
3074 | ||
3075 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
3076 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
3077 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 3078 |