Commit | Line | Data |
---|---|---|
0a8165d7 | 1 | /* |
aff063e2 JK |
2 | * fs/f2fs/super.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/statfs.h> | |
aff063e2 JK |
15 | #include <linux/buffer_head.h> |
16 | #include <linux/backing-dev.h> | |
17 | #include <linux/kthread.h> | |
18 | #include <linux/parser.h> | |
19 | #include <linux/mount.h> | |
20 | #include <linux/seq_file.h> | |
5e176d54 | 21 | #include <linux/proc_fs.h> |
aff063e2 JK |
22 | #include <linux/random.h> |
23 | #include <linux/exportfs.h> | |
d3ee456d | 24 | #include <linux/blkdev.h> |
0abd675e | 25 | #include <linux/quotaops.h> |
aff063e2 | 26 | #include <linux/f2fs_fs.h> |
b59d0bae | 27 | #include <linux/sysfs.h> |
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", |
cb78942b JK |
47 | [FAULT_ALLOC_NID] = "alloc nid", |
48 | [FAULT_ORPHAN] = "orphan", | |
49 | [FAULT_BLOCK] = "no more block", | |
50 | [FAULT_DIR_DEPTH] = "too big dir depth", | |
53aa6bbf | 51 | [FAULT_EVICT_INODE] = "evict_inode fail", |
14b44d23 | 52 | [FAULT_TRUNCATE] = "truncate fail", |
8b038c70 | 53 | [FAULT_IO] = "IO error", |
0f348028 | 54 | [FAULT_CHECKPOINT] = "checkpoint error", |
2c63fead | 55 | }; |
08796897 | 56 | |
1ecc0c5c CY |
57 | static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, |
58 | unsigned int rate) | |
08796897 | 59 | { |
1ecc0c5c CY |
60 | struct f2fs_fault_info *ffi = &sbi->fault_info; |
61 | ||
08796897 | 62 | if (rate) { |
1ecc0c5c CY |
63 | atomic_set(&ffi->inject_ops, 0); |
64 | ffi->inject_rate = rate; | |
65 | ffi->inject_type = (1 << FAULT_MAX) - 1; | |
08796897 | 66 | } else { |
1ecc0c5c | 67 | memset(ffi, 0, sizeof(struct f2fs_fault_info)); |
08796897 SY |
68 | } |
69 | } | |
73faec4d JK |
70 | #endif |
71 | ||
2658e50d JK |
72 | /* f2fs-wide shrinker description */ |
73 | static struct shrinker f2fs_shrinker_info = { | |
74 | .scan_objects = f2fs_shrink_scan, | |
75 | .count_objects = f2fs_shrink_count, | |
76 | .seeks = DEFAULT_SEEKS, | |
77 | }; | |
78 | ||
aff063e2 | 79 | enum { |
696c018c | 80 | Opt_gc_background, |
aff063e2 | 81 | Opt_disable_roll_forward, |
2d834bf9 | 82 | Opt_norecovery, |
aff063e2 | 83 | Opt_discard, |
64058be9 | 84 | Opt_nodiscard, |
aff063e2 | 85 | Opt_noheap, |
7a20b8a6 | 86 | Opt_heap, |
4058c511 | 87 | Opt_user_xattr, |
aff063e2 | 88 | Opt_nouser_xattr, |
4058c511 | 89 | Opt_acl, |
aff063e2 JK |
90 | Opt_noacl, |
91 | Opt_active_logs, | |
92 | Opt_disable_ext_identify, | |
444c580f | 93 | Opt_inline_xattr, |
23cf7212 | 94 | Opt_noinline_xattr, |
8274de77 | 95 | Opt_inline_data, |
5efd3c6f | 96 | Opt_inline_dentry, |
97c1794a | 97 | Opt_noinline_dentry, |
6b4afdd7 | 98 | Opt_flush_merge, |
69e9e427 | 99 | Opt_noflush_merge, |
0f7b2abd | 100 | Opt_nobarrier, |
d5053a34 | 101 | Opt_fastboot, |
89672159 | 102 | Opt_extent_cache, |
7daaea25 | 103 | Opt_noextent_cache, |
75342797 | 104 | Opt_noinline_data, |
343f40f0 | 105 | Opt_data_flush, |
36abef4e | 106 | Opt_mode, |
ec91538d | 107 | Opt_io_size_bits, |
73faec4d | 108 | Opt_fault_injection, |
6d94c74a JK |
109 | Opt_lazytime, |
110 | Opt_nolazytime, | |
4b2414d0 CY |
111 | Opt_quota, |
112 | Opt_noquota, | |
0abd675e CY |
113 | Opt_usrquota, |
114 | Opt_grpquota, | |
5c57132e | 115 | Opt_prjquota, |
4b2414d0 CY |
116 | Opt_usrjquota, |
117 | Opt_grpjquota, | |
118 | Opt_prjjquota, | |
119 | Opt_offusrjquota, | |
120 | Opt_offgrpjquota, | |
121 | Opt_offprjjquota, | |
122 | Opt_jqfmt_vfsold, | |
123 | Opt_jqfmt_vfsv0, | |
124 | Opt_jqfmt_vfsv1, | |
aff063e2 JK |
125 | Opt_err, |
126 | }; | |
127 | ||
128 | static match_table_t f2fs_tokens = { | |
696c018c | 129 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 130 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 131 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 132 | {Opt_discard, "discard"}, |
64058be9 | 133 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 134 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 135 | {Opt_heap, "heap"}, |
4058c511 | 136 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 137 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 138 | {Opt_acl, "acl"}, |
aff063e2 JK |
139 | {Opt_noacl, "noacl"}, |
140 | {Opt_active_logs, "active_logs=%u"}, | |
141 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 142 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 143 | {Opt_noinline_xattr, "noinline_xattr"}, |
8274de77 | 144 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 145 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 146 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 147 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 148 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 149 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 150 | {Opt_fastboot, "fastboot"}, |
89672159 | 151 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 152 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 153 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 154 | {Opt_data_flush, "data_flush"}, |
36abef4e | 155 | {Opt_mode, "mode=%s"}, |
ec91538d | 156 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 157 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
158 | {Opt_lazytime, "lazytime"}, |
159 | {Opt_nolazytime, "nolazytime"}, | |
4b2414d0 CY |
160 | {Opt_quota, "quota"}, |
161 | {Opt_noquota, "noquota"}, | |
0abd675e CY |
162 | {Opt_usrquota, "usrquota"}, |
163 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 164 | {Opt_prjquota, "prjquota"}, |
4b2414d0 CY |
165 | {Opt_usrjquota, "usrjquota=%s"}, |
166 | {Opt_grpjquota, "grpjquota=%s"}, | |
167 | {Opt_prjjquota, "prjjquota=%s"}, | |
168 | {Opt_offusrjquota, "usrjquota="}, | |
169 | {Opt_offgrpjquota, "grpjquota="}, | |
170 | {Opt_offprjjquota, "prjjquota="}, | |
171 | {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, | |
172 | {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, | |
173 | {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, | |
aff063e2 JK |
174 | {Opt_err, NULL}, |
175 | }; | |
176 | ||
a07ef784 NJ |
177 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
178 | { | |
179 | struct va_format vaf; | |
180 | va_list args; | |
181 | ||
182 | va_start(args, fmt); | |
183 | vaf.fmt = fmt; | |
184 | vaf.va = &args; | |
a36c106d | 185 | printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); |
a07ef784 NJ |
186 | va_end(args); |
187 | } | |
188 | ||
aff063e2 JK |
189 | static void init_once(void *foo) |
190 | { | |
191 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
192 | ||
aff063e2 JK |
193 | inode_init_once(&fi->vfs_inode); |
194 | } | |
195 | ||
4b2414d0 CY |
196 | #ifdef CONFIG_QUOTA |
197 | static const char * const quotatypes[] = INITQFNAMES; | |
198 | #define QTYPE2NAME(t) (quotatypes[t]) | |
199 | static int f2fs_set_qf_name(struct super_block *sb, int qtype, | |
200 | substring_t *args) | |
201 | { | |
202 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
203 | char *qname; | |
204 | int ret = -EINVAL; | |
205 | ||
206 | if (sb_any_quota_loaded(sb) && !sbi->s_qf_names[qtype]) { | |
207 | f2fs_msg(sb, KERN_ERR, | |
208 | "Cannot change journaled " | |
209 | "quota options when quota turned on"); | |
210 | return -EINVAL; | |
211 | } | |
212 | qname = match_strdup(args); | |
213 | if (!qname) { | |
214 | f2fs_msg(sb, KERN_ERR, | |
215 | "Not enough memory for storing quotafile name"); | |
216 | return -EINVAL; | |
217 | } | |
218 | if (sbi->s_qf_names[qtype]) { | |
219 | if (strcmp(sbi->s_qf_names[qtype], qname) == 0) | |
220 | ret = 0; | |
221 | else | |
222 | f2fs_msg(sb, KERN_ERR, | |
223 | "%s quota file already specified", | |
224 | QTYPE2NAME(qtype)); | |
225 | goto errout; | |
226 | } | |
227 | if (strchr(qname, '/')) { | |
228 | f2fs_msg(sb, KERN_ERR, | |
229 | "quotafile must be on filesystem root"); | |
230 | goto errout; | |
231 | } | |
232 | sbi->s_qf_names[qtype] = qname; | |
233 | set_opt(sbi, QUOTA); | |
234 | return 0; | |
235 | errout: | |
236 | kfree(qname); | |
237 | return ret; | |
238 | } | |
239 | ||
240 | static int f2fs_clear_qf_name(struct super_block *sb, int qtype) | |
241 | { | |
242 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
243 | ||
244 | if (sb_any_quota_loaded(sb) && sbi->s_qf_names[qtype]) { | |
245 | f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" | |
246 | " when quota turned on"); | |
247 | return -EINVAL; | |
248 | } | |
249 | kfree(sbi->s_qf_names[qtype]); | |
250 | sbi->s_qf_names[qtype] = NULL; | |
251 | return 0; | |
252 | } | |
253 | ||
254 | static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) | |
255 | { | |
256 | /* | |
257 | * We do the test below only for project quotas. 'usrquota' and | |
258 | * 'grpquota' mount options are allowed even without quota feature | |
259 | * to support legacy quotas in quota files. | |
260 | */ | |
261 | if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) { | |
262 | f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " | |
263 | "Cannot enable project quota enforcement."); | |
264 | return -1; | |
265 | } | |
266 | if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA] || | |
267 | sbi->s_qf_names[PRJQUOTA]) { | |
268 | if (test_opt(sbi, USRQUOTA) && sbi->s_qf_names[USRQUOTA]) | |
269 | clear_opt(sbi, USRQUOTA); | |
270 | ||
271 | if (test_opt(sbi, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) | |
272 | clear_opt(sbi, GRPQUOTA); | |
273 | ||
274 | if (test_opt(sbi, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA]) | |
275 | clear_opt(sbi, PRJQUOTA); | |
276 | ||
277 | if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || | |
278 | test_opt(sbi, PRJQUOTA)) { | |
279 | f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " | |
280 | "format mixing"); | |
281 | return -1; | |
282 | } | |
283 | ||
284 | if (!sbi->s_jquota_fmt) { | |
285 | f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " | |
286 | "not specified"); | |
287 | return -1; | |
288 | } | |
289 | } | |
290 | return 0; | |
291 | } | |
292 | #endif | |
293 | ||
696c018c NJ |
294 | static int parse_options(struct super_block *sb, char *options) |
295 | { | |
296 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 297 | struct request_queue *q; |
696c018c NJ |
298 | substring_t args[MAX_OPT_ARGS]; |
299 | char *p, *name; | |
300 | int arg = 0; | |
4b2414d0 CY |
301 | #ifdef CONFIG_QUOTA |
302 | int ret; | |
303 | #endif | |
696c018c NJ |
304 | |
305 | if (!options) | |
306 | return 0; | |
307 | ||
308 | while ((p = strsep(&options, ",")) != NULL) { | |
309 | int token; | |
310 | if (!*p) | |
311 | continue; | |
312 | /* | |
313 | * Initialize args struct so we know whether arg was | |
314 | * found; some options take optional arguments. | |
315 | */ | |
316 | args[0].to = args[0].from = NULL; | |
317 | token = match_token(p, f2fs_tokens, args); | |
318 | ||
319 | switch (token) { | |
320 | case Opt_gc_background: | |
321 | name = match_strdup(&args[0]); | |
322 | ||
323 | if (!name) | |
324 | return -ENOMEM; | |
6aefd93b | 325 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 326 | set_opt(sbi, BG_GC); |
6aefd93b JK |
327 | clear_opt(sbi, FORCE_FG_GC); |
328 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 329 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
330 | clear_opt(sbi, FORCE_FG_GC); |
331 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
332 | set_opt(sbi, BG_GC); | |
333 | set_opt(sbi, FORCE_FG_GC); | |
334 | } else { | |
696c018c NJ |
335 | kfree(name); |
336 | return -EINVAL; | |
337 | } | |
338 | kfree(name); | |
339 | break; | |
340 | case Opt_disable_roll_forward: | |
341 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
342 | break; | |
2d834bf9 JK |
343 | case Opt_norecovery: |
344 | /* this option mounts f2fs with ro */ | |
345 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
346 | if (!f2fs_readonly(sb)) | |
347 | return -EINVAL; | |
348 | break; | |
696c018c | 349 | case Opt_discard: |
09d54cdd CY |
350 | q = bdev_get_queue(sb->s_bdev); |
351 | if (blk_queue_discard(q)) { | |
352 | set_opt(sbi, DISCARD); | |
0ab02998 | 353 | } else if (!f2fs_sb_mounted_blkzoned(sb)) { |
09d54cdd CY |
354 | f2fs_msg(sb, KERN_WARNING, |
355 | "mounting with \"discard\" option, but " | |
356 | "the device does not support discard"); | |
357 | } | |
696c018c | 358 | break; |
64058be9 | 359 | case Opt_nodiscard: |
96ba2dec DLM |
360 | if (f2fs_sb_mounted_blkzoned(sb)) { |
361 | f2fs_msg(sb, KERN_WARNING, | |
362 | "discard is required for zoned block devices"); | |
363 | return -EINVAL; | |
364 | } | |
64058be9 | 365 | clear_opt(sbi, DISCARD); |
487df616 | 366 | break; |
696c018c NJ |
367 | case Opt_noheap: |
368 | set_opt(sbi, NOHEAP); | |
369 | break; | |
7a20b8a6 JK |
370 | case Opt_heap: |
371 | clear_opt(sbi, NOHEAP); | |
372 | break; | |
696c018c | 373 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
374 | case Opt_user_xattr: |
375 | set_opt(sbi, XATTR_USER); | |
376 | break; | |
696c018c NJ |
377 | case Opt_nouser_xattr: |
378 | clear_opt(sbi, XATTR_USER); | |
379 | break; | |
444c580f JK |
380 | case Opt_inline_xattr: |
381 | set_opt(sbi, INLINE_XATTR); | |
382 | break; | |
23cf7212 CY |
383 | case Opt_noinline_xattr: |
384 | clear_opt(sbi, INLINE_XATTR); | |
385 | break; | |
696c018c | 386 | #else |
4058c511 KA |
387 | case Opt_user_xattr: |
388 | f2fs_msg(sb, KERN_INFO, | |
389 | "user_xattr options not supported"); | |
390 | break; | |
696c018c NJ |
391 | case Opt_nouser_xattr: |
392 | f2fs_msg(sb, KERN_INFO, | |
393 | "nouser_xattr options not supported"); | |
394 | break; | |
444c580f JK |
395 | case Opt_inline_xattr: |
396 | f2fs_msg(sb, KERN_INFO, | |
397 | "inline_xattr options not supported"); | |
398 | break; | |
23cf7212 CY |
399 | case Opt_noinline_xattr: |
400 | f2fs_msg(sb, KERN_INFO, | |
401 | "noinline_xattr options not supported"); | |
402 | break; | |
696c018c NJ |
403 | #endif |
404 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
405 | case Opt_acl: |
406 | set_opt(sbi, POSIX_ACL); | |
407 | break; | |
696c018c NJ |
408 | case Opt_noacl: |
409 | clear_opt(sbi, POSIX_ACL); | |
410 | break; | |
411 | #else | |
4058c511 KA |
412 | case Opt_acl: |
413 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
414 | break; | |
696c018c NJ |
415 | case Opt_noacl: |
416 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
417 | break; | |
418 | #endif | |
419 | case Opt_active_logs: | |
420 | if (args->from && match_int(args, &arg)) | |
421 | return -EINVAL; | |
422 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
423 | return -EINVAL; | |
424 | sbi->active_logs = arg; | |
425 | break; | |
426 | case Opt_disable_ext_identify: | |
427 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
428 | break; | |
8274de77 HL |
429 | case Opt_inline_data: |
430 | set_opt(sbi, INLINE_DATA); | |
431 | break; | |
5efd3c6f CY |
432 | case Opt_inline_dentry: |
433 | set_opt(sbi, INLINE_DENTRY); | |
434 | break; | |
97c1794a CY |
435 | case Opt_noinline_dentry: |
436 | clear_opt(sbi, INLINE_DENTRY); | |
437 | break; | |
6b4afdd7 JK |
438 | case Opt_flush_merge: |
439 | set_opt(sbi, FLUSH_MERGE); | |
440 | break; | |
69e9e427 JK |
441 | case Opt_noflush_merge: |
442 | clear_opt(sbi, FLUSH_MERGE); | |
443 | break; | |
0f7b2abd JK |
444 | case Opt_nobarrier: |
445 | set_opt(sbi, NOBARRIER); | |
446 | break; | |
d5053a34 JK |
447 | case Opt_fastboot: |
448 | set_opt(sbi, FASTBOOT); | |
449 | break; | |
89672159 CY |
450 | case Opt_extent_cache: |
451 | set_opt(sbi, EXTENT_CACHE); | |
452 | break; | |
7daaea25 JK |
453 | case Opt_noextent_cache: |
454 | clear_opt(sbi, EXTENT_CACHE); | |
455 | break; | |
75342797 WL |
456 | case Opt_noinline_data: |
457 | clear_opt(sbi, INLINE_DATA); | |
458 | break; | |
343f40f0 CY |
459 | case Opt_data_flush: |
460 | set_opt(sbi, DATA_FLUSH); | |
461 | break; | |
36abef4e JK |
462 | case Opt_mode: |
463 | name = match_strdup(&args[0]); | |
464 | ||
465 | if (!name) | |
466 | return -ENOMEM; | |
467 | if (strlen(name) == 8 && | |
468 | !strncmp(name, "adaptive", 8)) { | |
3adc57e9 DLM |
469 | if (f2fs_sb_mounted_blkzoned(sb)) { |
470 | f2fs_msg(sb, KERN_WARNING, | |
471 | "adaptive mode is not allowed with " | |
472 | "zoned block device feature"); | |
473 | kfree(name); | |
474 | return -EINVAL; | |
475 | } | |
52763a4b | 476 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
477 | } else if (strlen(name) == 3 && |
478 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 479 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
480 | } else { |
481 | kfree(name); | |
482 | return -EINVAL; | |
483 | } | |
484 | kfree(name); | |
485 | break; | |
ec91538d JK |
486 | case Opt_io_size_bits: |
487 | if (args->from && match_int(args, &arg)) | |
488 | return -EINVAL; | |
489 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
490 | f2fs_msg(sb, KERN_WARNING, | |
491 | "Not support %d, larger than %d", | |
492 | 1 << arg, BIO_MAX_PAGES); | |
493 | return -EINVAL; | |
494 | } | |
495 | sbi->write_io_size_bits = arg; | |
496 | break; | |
73faec4d JK |
497 | case Opt_fault_injection: |
498 | if (args->from && match_int(args, &arg)) | |
499 | return -EINVAL; | |
500 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 501 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 502 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
503 | #else |
504 | f2fs_msg(sb, KERN_INFO, | |
505 | "FAULT_INJECTION was not selected"); | |
506 | #endif | |
507 | break; | |
6d94c74a JK |
508 | case Opt_lazytime: |
509 | sb->s_flags |= MS_LAZYTIME; | |
510 | break; | |
511 | case Opt_nolazytime: | |
512 | sb->s_flags &= ~MS_LAZYTIME; | |
513 | break; | |
0abd675e | 514 | #ifdef CONFIG_QUOTA |
4b2414d0 | 515 | case Opt_quota: |
0abd675e CY |
516 | case Opt_usrquota: |
517 | set_opt(sbi, USRQUOTA); | |
518 | break; | |
519 | case Opt_grpquota: | |
520 | set_opt(sbi, GRPQUOTA); | |
521 | break; | |
5c57132e CY |
522 | case Opt_prjquota: |
523 | set_opt(sbi, PRJQUOTA); | |
524 | break; | |
4b2414d0 CY |
525 | case Opt_usrjquota: |
526 | ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); | |
527 | if (ret) | |
528 | return ret; | |
529 | break; | |
530 | case Opt_grpjquota: | |
531 | ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); | |
532 | if (ret) | |
533 | return ret; | |
534 | break; | |
535 | case Opt_prjjquota: | |
536 | ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); | |
537 | if (ret) | |
538 | return ret; | |
539 | break; | |
540 | case Opt_offusrjquota: | |
541 | ret = f2fs_clear_qf_name(sb, USRQUOTA); | |
542 | if (ret) | |
543 | return ret; | |
544 | break; | |
545 | case Opt_offgrpjquota: | |
546 | ret = f2fs_clear_qf_name(sb, GRPQUOTA); | |
547 | if (ret) | |
548 | return ret; | |
549 | break; | |
550 | case Opt_offprjjquota: | |
551 | ret = f2fs_clear_qf_name(sb, PRJQUOTA); | |
552 | if (ret) | |
553 | return ret; | |
554 | break; | |
555 | case Opt_jqfmt_vfsold: | |
556 | sbi->s_jquota_fmt = QFMT_VFS_OLD; | |
557 | break; | |
558 | case Opt_jqfmt_vfsv0: | |
559 | sbi->s_jquota_fmt = QFMT_VFS_V0; | |
560 | break; | |
561 | case Opt_jqfmt_vfsv1: | |
562 | sbi->s_jquota_fmt = QFMT_VFS_V1; | |
563 | break; | |
564 | case Opt_noquota: | |
565 | clear_opt(sbi, QUOTA); | |
566 | clear_opt(sbi, USRQUOTA); | |
567 | clear_opt(sbi, GRPQUOTA); | |
568 | clear_opt(sbi, PRJQUOTA); | |
569 | break; | |
0abd675e | 570 | #else |
4b2414d0 | 571 | case Opt_quota: |
0abd675e CY |
572 | case Opt_usrquota: |
573 | case Opt_grpquota: | |
5c57132e | 574 | case Opt_prjquota: |
4b2414d0 CY |
575 | case Opt_usrjquota: |
576 | case Opt_grpjquota: | |
577 | case Opt_prjjquota: | |
578 | case Opt_offusrjquota: | |
579 | case Opt_offgrpjquota: | |
580 | case Opt_offprjjquota: | |
581 | case Opt_jqfmt_vfsold: | |
582 | case Opt_jqfmt_vfsv0: | |
583 | case Opt_jqfmt_vfsv1: | |
584 | case Opt_noquota: | |
0abd675e CY |
585 | f2fs_msg(sb, KERN_INFO, |
586 | "quota operations not supported"); | |
587 | break; | |
588 | #endif | |
696c018c NJ |
589 | default: |
590 | f2fs_msg(sb, KERN_ERR, | |
591 | "Unrecognized mount option \"%s\" or missing value", | |
592 | p); | |
593 | return -EINVAL; | |
594 | } | |
595 | } | |
4b2414d0 CY |
596 | #ifdef CONFIG_QUOTA |
597 | if (f2fs_check_quota_options(sbi)) | |
598 | return -EINVAL; | |
599 | #endif | |
ec91538d JK |
600 | |
601 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
602 | f2fs_msg(sb, KERN_ERR, | |
603 | "Should set mode=lfs with %uKB-sized IO", | |
604 | F2FS_IO_SIZE_KB(sbi)); | |
605 | return -EINVAL; | |
606 | } | |
696c018c NJ |
607 | return 0; |
608 | } | |
609 | ||
aff063e2 JK |
610 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
611 | { | |
612 | struct f2fs_inode_info *fi; | |
613 | ||
a0acdfe0 | 614 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
615 | if (!fi) |
616 | return NULL; | |
617 | ||
618 | init_once((void *) fi); | |
619 | ||
434720fa | 620 | /* Initialize f2fs-specific inode info */ |
aff063e2 | 621 | fi->vfs_inode.i_version = 1; |
204706c7 | 622 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
623 | fi->i_current_depth = 1; |
624 | fi->i_advise = 0; | |
d928bfbf | 625 | init_rwsem(&fi->i_sem); |
2710fd7e | 626 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 627 | INIT_LIST_HEAD(&fi->gdirty_list); |
88b88a66 JK |
628 | INIT_LIST_HEAD(&fi->inmem_pages); |
629 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
630 | init_rwsem(&fi->dio_rwsem[READ]); |
631 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 632 | init_rwsem(&fi->i_mmap_sem); |
aff063e2 | 633 | |
0abd675e CY |
634 | #ifdef CONFIG_QUOTA |
635 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
636 | fi->i_reserved_quota = 0; | |
637 | #endif | |
ab9fa662 JK |
638 | /* Will be used by directory only */ |
639 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 640 | |
aff063e2 JK |
641 | return &fi->vfs_inode; |
642 | } | |
643 | ||
531ad7d5 JK |
644 | static int f2fs_drop_inode(struct inode *inode) |
645 | { | |
b8d96a30 | 646 | int ret; |
531ad7d5 JK |
647 | /* |
648 | * This is to avoid a deadlock condition like below. | |
649 | * writeback_single_inode(inode) | |
650 | * - f2fs_write_data_page | |
651 | * - f2fs_gc -> iput -> evict | |
652 | * - inode_wait_for_writeback(inode) | |
653 | */ | |
0f18b462 | 654 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 655 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
656 | /* to avoid evict_inode call simultaneously */ |
657 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
658 | spin_unlock(&inode->i_lock); |
659 | ||
660 | /* some remained atomic pages should discarded */ | |
661 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 662 | drop_inmem_pages(inode); |
06e1bc05 | 663 | |
3e72f721 JK |
664 | /* should remain fi->extent_tree for writepage */ |
665 | f2fs_destroy_extent_node(inode); | |
666 | ||
06e1bc05 | 667 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 668 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
669 | |
670 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 671 | f2fs_truncate(inode); |
06e1bc05 JK |
672 | |
673 | sb_end_intwrite(inode->i_sb); | |
674 | ||
0b81d077 | 675 | fscrypt_put_encryption_info(inode, NULL); |
06e1bc05 | 676 | spin_lock(&inode->i_lock); |
3e72f721 | 677 | atomic_dec(&inode->i_count); |
06e1bc05 | 678 | } |
b8d96a30 | 679 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 680 | return 0; |
06e1bc05 | 681 | } |
b8d96a30 HP |
682 | ret = generic_drop_inode(inode); |
683 | trace_f2fs_drop_inode(inode, ret); | |
684 | return ret; | |
531ad7d5 JK |
685 | } |
686 | ||
7c45729a | 687 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 688 | { |
0f18b462 | 689 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 690 | int ret = 0; |
0f18b462 | 691 | |
0f18b462 JK |
692 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
693 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
694 | ret = 1; |
695 | } else { | |
696 | set_inode_flag(inode, FI_DIRTY_INODE); | |
697 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 698 | } |
7c45729a JK |
699 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
700 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 701 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
702 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
703 | } | |
338bbfa0 | 704 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 705 | return ret; |
0f18b462 JK |
706 | } |
707 | ||
708 | void f2fs_inode_synced(struct inode *inode) | |
709 | { | |
710 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
711 | ||
712 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
713 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
714 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
715 | return; | |
716 | } | |
7c45729a JK |
717 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
718 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
719 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
720 | } | |
0f18b462 | 721 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 722 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 723 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 724 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
725 | } |
726 | ||
b56ab837 JK |
727 | /* |
728 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
729 | * | |
730 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
731 | */ | |
732 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
733 | { | |
734 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
735 | ||
736 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
737 | inode->i_ino == F2FS_META_INO(sbi)) | |
738 | return; | |
739 | ||
740 | if (flags == I_DIRTY_TIME) | |
741 | return; | |
742 | ||
743 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
744 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
745 | ||
7c45729a | 746 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
747 | } |
748 | ||
aff063e2 JK |
749 | static void f2fs_i_callback(struct rcu_head *head) |
750 | { | |
751 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
752 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
753 | } | |
754 | ||
25ca923b | 755 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
756 | { |
757 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
758 | } | |
759 | ||
523be8a6 JK |
760 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
761 | { | |
41382ec4 | 762 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 763 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
764 | } |
765 | ||
3c62be17 JK |
766 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
767 | { | |
768 | int i; | |
769 | ||
770 | for (i = 0; i < sbi->s_ndevs; i++) { | |
771 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
772 | #ifdef CONFIG_BLK_DEV_ZONED | |
773 | kfree(FDEV(i).blkz_type); | |
774 | #endif | |
775 | } | |
776 | kfree(sbi->devs); | |
777 | } | |
778 | ||
aff063e2 JK |
779 | static void f2fs_put_super(struct super_block *sb) |
780 | { | |
781 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 782 | int i; |
aff063e2 | 783 | |
0abd675e | 784 | f2fs_quota_off_umount(sb); |
aff063e2 | 785 | |
2658e50d JK |
786 | /* prevent remaining shrinker jobs */ |
787 | mutex_lock(&sbi->umount_mutex); | |
788 | ||
85dc2f2c JK |
789 | /* |
790 | * We don't need to do checkpoint when superblock is clean. | |
791 | * But, the previous checkpoint was not done by umount, it needs to do | |
792 | * clean checkpoint again. | |
793 | */ | |
caf0047e | 794 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 795 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
796 | struct cp_control cpc = { |
797 | .reason = CP_UMOUNT, | |
798 | }; | |
799 | write_checkpoint(sbi, &cpc); | |
800 | } | |
aff063e2 | 801 | |
4e6a8d9b | 802 | /* be sure to wait for any on-going discard commands */ |
d431413f | 803 | f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 804 | |
663f387b | 805 | if (f2fs_discard_en(sbi) && !sbi->discard_blks) { |
1f43e2ad CY |
806 | struct cp_control cpc = { |
807 | .reason = CP_UMOUNT | CP_TRIMMED, | |
808 | }; | |
809 | write_checkpoint(sbi, &cpc); | |
810 | } | |
811 | ||
eca616f8 JK |
812 | /* write_checkpoint can update stat informaion */ |
813 | f2fs_destroy_stats(sbi); | |
814 | ||
cf779cab JK |
815 | /* |
816 | * normally superblock is clean, so we need to release this. | |
817 | * In addition, EIO will skip do checkpoint, we need this as well. | |
818 | */ | |
74ef9241 | 819 | release_ino_entry(sbi, true); |
6f12ac25 | 820 | |
2658e50d JK |
821 | f2fs_leave_shrinker(sbi); |
822 | mutex_unlock(&sbi->umount_mutex); | |
823 | ||
17c19120 | 824 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 825 | f2fs_flush_merged_writes(sbi); |
17c19120 | 826 | |
aff063e2 JK |
827 | iput(sbi->node_inode); |
828 | iput(sbi->meta_inode); | |
829 | ||
830 | /* destroy f2fs internal modules */ | |
831 | destroy_node_manager(sbi); | |
832 | destroy_segment_manager(sbi); | |
833 | ||
834 | kfree(sbi->ckpt); | |
a398101a | 835 | |
dc6b2055 | 836 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
837 | |
838 | sb->s_fs_info = NULL; | |
43b6573b KM |
839 | if (sbi->s_chksum_driver) |
840 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 841 | kfree(sbi->raw_super); |
523be8a6 | 842 | |
3c62be17 | 843 | destroy_device_list(sbi); |
b6895e8f | 844 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
845 | #ifdef CONFIG_QUOTA |
846 | for (i = 0; i < MAXQUOTAS; i++) | |
847 | kfree(sbi->s_qf_names[i]); | |
848 | #endif | |
523be8a6 | 849 | destroy_percpu_info(sbi); |
a912b54d JK |
850 | for (i = 0; i < NR_PAGE_TYPE; i++) |
851 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
852 | kfree(sbi); |
853 | } | |
854 | ||
855 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
856 | { | |
857 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 858 | int err = 0; |
aff063e2 | 859 | |
a2a4a7e4 NJ |
860 | trace_f2fs_sync_fs(sb, sync); |
861 | ||
4b2414d0 CY |
862 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
863 | return -EAGAIN; | |
864 | ||
b7473754 | 865 | if (sync) { |
d5053a34 JK |
866 | struct cp_control cpc; |
867 | ||
119ee914 JK |
868 | cpc.reason = __get_cp_reason(sbi); |
869 | ||
b7473754 | 870 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 871 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 872 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 873 | } |
05ca3632 | 874 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 875 | |
c34f42e2 | 876 | return err; |
aff063e2 JK |
877 | } |
878 | ||
d6212a5f CL |
879 | static int f2fs_freeze(struct super_block *sb) |
880 | { | |
77888c1e | 881 | if (f2fs_readonly(sb)) |
d6212a5f CL |
882 | return 0; |
883 | ||
b4b9d34c JK |
884 | /* IO error happened before */ |
885 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
886 | return -EIO; | |
887 | ||
888 | /* must be clean, since sync_filesystem() was already called */ | |
889 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
890 | return -EINVAL; | |
891 | return 0; | |
d6212a5f CL |
892 | } |
893 | ||
894 | static int f2fs_unfreeze(struct super_block *sb) | |
895 | { | |
896 | return 0; | |
897 | } | |
898 | ||
ddc34e32 CY |
899 | #ifdef CONFIG_QUOTA |
900 | static int f2fs_statfs_project(struct super_block *sb, | |
901 | kprojid_t projid, struct kstatfs *buf) | |
902 | { | |
903 | struct kqid qid; | |
904 | struct dquot *dquot; | |
905 | u64 limit; | |
906 | u64 curblock; | |
907 | ||
908 | qid = make_kqid_projid(projid); | |
909 | dquot = dqget(sb, qid); | |
910 | if (IS_ERR(dquot)) | |
911 | return PTR_ERR(dquot); | |
912 | spin_lock(&dq_data_lock); | |
913 | ||
914 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
915 | dquot->dq_dqb.dqb_bsoftlimit : | |
916 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
917 | if (limit && buf->f_blocks > limit) { | |
918 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
919 | buf->f_blocks = limit; | |
920 | buf->f_bfree = buf->f_bavail = | |
921 | (buf->f_blocks > curblock) ? | |
922 | (buf->f_blocks - curblock) : 0; | |
923 | } | |
924 | ||
925 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
926 | dquot->dq_dqb.dqb_isoftlimit : | |
927 | dquot->dq_dqb.dqb_ihardlimit; | |
928 | if (limit && buf->f_files > limit) { | |
929 | buf->f_files = limit; | |
930 | buf->f_ffree = | |
931 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
932 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
933 | } | |
934 | ||
935 | spin_unlock(&dq_data_lock); | |
936 | dqput(dquot); | |
937 | return 0; | |
938 | } | |
939 | #endif | |
940 | ||
aff063e2 JK |
941 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
942 | { | |
943 | struct super_block *sb = dentry->d_sb; | |
944 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
945 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
946 | block_t total_count, user_block_count, start_count, ovp_count; | |
0cc091d0 | 947 | u64 avail_node_count; |
aff063e2 JK |
948 | |
949 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
950 | user_block_count = sbi->user_block_count; | |
951 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
952 | ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; | |
953 | buf->f_type = F2FS_SUPER_MAGIC; | |
954 | buf->f_bsize = sbi->blocksize; | |
955 | ||
956 | buf->f_blocks = total_count - start_count; | |
3e6d0b4d | 957 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; |
daeb433e CY |
958 | buf->f_bavail = user_block_count - valid_user_blocks(sbi) - |
959 | sbi->reserved_blocks; | |
aff063e2 | 960 | |
0cc091d0 JK |
961 | avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
962 | ||
963 | if (avail_node_count > user_block_count) { | |
964 | buf->f_files = user_block_count; | |
965 | buf->f_ffree = buf->f_bavail; | |
966 | } else { | |
967 | buf->f_files = avail_node_count; | |
968 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
969 | buf->f_bavail); | |
970 | } | |
aff063e2 | 971 | |
5a20d339 | 972 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
973 | buf->f_fsid.val[0] = (u32)id; |
974 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
975 | ||
ddc34e32 CY |
976 | #ifdef CONFIG_QUOTA |
977 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
978 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
979 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
980 | } | |
981 | #endif | |
aff063e2 JK |
982 | return 0; |
983 | } | |
984 | ||
4b2414d0 CY |
985 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
986 | struct super_block *sb) | |
987 | { | |
988 | #ifdef CONFIG_QUOTA | |
989 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
990 | ||
991 | if (sbi->s_jquota_fmt) { | |
992 | char *fmtname = ""; | |
993 | ||
994 | switch (sbi->s_jquota_fmt) { | |
995 | case QFMT_VFS_OLD: | |
996 | fmtname = "vfsold"; | |
997 | break; | |
998 | case QFMT_VFS_V0: | |
999 | fmtname = "vfsv0"; | |
1000 | break; | |
1001 | case QFMT_VFS_V1: | |
1002 | fmtname = "vfsv1"; | |
1003 | break; | |
1004 | } | |
1005 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1006 | } | |
1007 | ||
1008 | if (sbi->s_qf_names[USRQUOTA]) | |
1009 | seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]); | |
1010 | ||
1011 | if (sbi->s_qf_names[GRPQUOTA]) | |
1012 | seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]); | |
1013 | ||
1014 | if (sbi->s_qf_names[PRJQUOTA]) | |
1015 | seq_show_option(seq, "prjjquota", sbi->s_qf_names[PRJQUOTA]); | |
1016 | #endif | |
1017 | } | |
1018 | ||
aff063e2 JK |
1019 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1020 | { | |
1021 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1022 | ||
6aefd93b JK |
1023 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1024 | if (test_opt(sbi, FORCE_FG_GC)) | |
1025 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1026 | else | |
1027 | seq_printf(seq, ",background_gc=%s", "on"); | |
1028 | } else { | |
696c018c | 1029 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1030 | } |
aff063e2 JK |
1031 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1032 | seq_puts(seq, ",disable_roll_forward"); | |
1033 | if (test_opt(sbi, DISCARD)) | |
1034 | seq_puts(seq, ",discard"); | |
1035 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1036 | seq_puts(seq, ",no_heap"); |
1037 | else | |
1038 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1039 | #ifdef CONFIG_F2FS_FS_XATTR |
1040 | if (test_opt(sbi, XATTR_USER)) | |
1041 | seq_puts(seq, ",user_xattr"); | |
1042 | else | |
1043 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1044 | if (test_opt(sbi, INLINE_XATTR)) |
1045 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1046 | else |
1047 | seq_puts(seq, ",noinline_xattr"); | |
aff063e2 JK |
1048 | #endif |
1049 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1050 | if (test_opt(sbi, POSIX_ACL)) | |
1051 | seq_puts(seq, ",acl"); | |
1052 | else | |
1053 | seq_puts(seq, ",noacl"); | |
1054 | #endif | |
1055 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1056 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1057 | if (test_opt(sbi, INLINE_DATA)) |
1058 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1059 | else |
1060 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1061 | if (test_opt(sbi, INLINE_DENTRY)) |
1062 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1063 | else |
1064 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1065 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1066 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1067 | if (test_opt(sbi, NOBARRIER)) |
1068 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1069 | if (test_opt(sbi, FASTBOOT)) |
1070 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1071 | if (test_opt(sbi, EXTENT_CACHE)) |
1072 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1073 | else |
1074 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1075 | if (test_opt(sbi, DATA_FLUSH)) |
1076 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1077 | |
1078 | seq_puts(seq, ",mode="); | |
1079 | if (test_opt(sbi, ADAPTIVE)) | |
1080 | seq_puts(seq, "adaptive"); | |
1081 | else if (test_opt(sbi, LFS)) | |
1082 | seq_puts(seq, "lfs"); | |
aff063e2 | 1083 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
ec91538d JK |
1084 | if (F2FS_IO_SIZE_BITS(sbi)) |
1085 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
1086 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1087 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
1088 | seq_printf(seq, ",fault_injection=%u", |
1089 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 1090 | #endif |
0abd675e | 1091 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1092 | if (test_opt(sbi, QUOTA)) |
1093 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1094 | if (test_opt(sbi, USRQUOTA)) |
1095 | seq_puts(seq, ",usrquota"); | |
1096 | if (test_opt(sbi, GRPQUOTA)) | |
1097 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1098 | if (test_opt(sbi, PRJQUOTA)) |
1099 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1100 | #endif |
4b2414d0 | 1101 | f2fs_show_quota_options(seq, sbi->sb); |
aff063e2 JK |
1102 | |
1103 | return 0; | |
1104 | } | |
1105 | ||
498c5e9f YH |
1106 | static void default_options(struct f2fs_sb_info *sbi) |
1107 | { | |
1108 | /* init some FS parameters */ | |
1109 | sbi->active_logs = NR_CURSEG_TYPE; | |
1110 | ||
1111 | set_opt(sbi, BG_GC); | |
39133a50 | 1112 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1113 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1114 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1115 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1116 | set_opt(sbi, NOHEAP); |
6d94c74a | 1117 | sbi->sb->s_flags |= MS_LAZYTIME; |
69e9e427 | 1118 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 1119 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
1120 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1121 | set_opt(sbi, DISCARD); | |
1122 | } else { | |
1123 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
1124 | } | |
498c5e9f YH |
1125 | |
1126 | #ifdef CONFIG_F2FS_FS_XATTR | |
1127 | set_opt(sbi, XATTR_USER); | |
1128 | #endif | |
1129 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1130 | set_opt(sbi, POSIX_ACL); | |
1131 | #endif | |
36dbd328 CY |
1132 | |
1133 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1134 | f2fs_build_fault_attr(sbi, 0); | |
1135 | #endif | |
498c5e9f YH |
1136 | } |
1137 | ||
696c018c NJ |
1138 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1139 | { | |
1140 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1141 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1142 | unsigned long old_sb_flags; |
696c018c | 1143 | int err, active_logs; |
876dc59e GZ |
1144 | bool need_restart_gc = false; |
1145 | bool need_stop_gc = false; | |
9cd81ce3 | 1146 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
2443b8b3 CY |
1147 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1148 | struct f2fs_fault_info ffi = sbi->fault_info; | |
1149 | #endif | |
4b2414d0 CY |
1150 | #ifdef CONFIG_QUOTA |
1151 | int s_jquota_fmt; | |
1152 | char *s_qf_names[MAXQUOTAS]; | |
1153 | int i, j; | |
1154 | #endif | |
696c018c NJ |
1155 | |
1156 | /* | |
1157 | * Save the old mount options in case we | |
1158 | * need to restore them. | |
1159 | */ | |
1160 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1161 | old_sb_flags = sb->s_flags; |
696c018c NJ |
1162 | active_logs = sbi->active_logs; |
1163 | ||
4b2414d0 CY |
1164 | #ifdef CONFIG_QUOTA |
1165 | s_jquota_fmt = sbi->s_jquota_fmt; | |
1166 | for (i = 0; i < MAXQUOTAS; i++) { | |
1167 | if (sbi->s_qf_names[i]) { | |
1168 | s_qf_names[i] = kstrdup(sbi->s_qf_names[i], | |
1169 | GFP_KERNEL); | |
1170 | if (!s_qf_names[i]) { | |
1171 | for (j = 0; j < i; j++) | |
1172 | kfree(s_qf_names[j]); | |
1173 | return -ENOMEM; | |
1174 | } | |
1175 | } else { | |
1176 | s_qf_names[i] = NULL; | |
1177 | } | |
1178 | } | |
1179 | #endif | |
1180 | ||
df728b0f JK |
1181 | /* recover superblocks we couldn't write due to previous RO mount */ |
1182 | if (!(*flags & MS_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { | |
1183 | err = f2fs_commit_super(sbi, false); | |
1184 | f2fs_msg(sb, KERN_INFO, | |
1185 | "Try to recover all the superblocks, ret: %d", err); | |
1186 | if (!err) | |
1187 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1188 | } | |
1189 | ||
498c5e9f | 1190 | default_options(sbi); |
26666c8a | 1191 | |
696c018c NJ |
1192 | /* parse mount options */ |
1193 | err = parse_options(sb, data); | |
1194 | if (err) | |
1195 | goto restore_opts; | |
1196 | ||
1197 | /* | |
1198 | * Previous and new state of filesystem is RO, | |
876dc59e | 1199 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1200 | */ |
6b2920a5 | 1201 | if (f2fs_readonly(sb) && (*flags & MS_RDONLY)) |
696c018c NJ |
1202 | goto skip; |
1203 | ||
0abd675e CY |
1204 | if (!f2fs_readonly(sb) && (*flags & MS_RDONLY)) { |
1205 | err = dquot_suspend(sb, -1); | |
1206 | if (err < 0) | |
1207 | goto restore_opts; | |
1208 | } else { | |
1209 | /* dquot_resume needs RW */ | |
1210 | sb->s_flags &= ~MS_RDONLY; | |
1211 | dquot_resume(sb, -1); | |
1212 | } | |
1213 | ||
9cd81ce3 CY |
1214 | /* disallow enable/disable extent_cache dynamically */ |
1215 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1216 | err = -EINVAL; | |
1217 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1218 | "switch extent_cache option is not allowed"); | |
1219 | goto restore_opts; | |
1220 | } | |
1221 | ||
696c018c NJ |
1222 | /* |
1223 | * We stop the GC thread if FS is mounted as RO | |
1224 | * or if background_gc = off is passed in mount | |
1225 | * option. Also sync the filesystem. | |
1226 | */ | |
1227 | if ((*flags & MS_RDONLY) || !test_opt(sbi, BG_GC)) { | |
1228 | if (sbi->gc_thread) { | |
1229 | stop_gc_thread(sbi); | |
876dc59e | 1230 | need_restart_gc = true; |
696c018c | 1231 | } |
aba291b3 | 1232 | } else if (!sbi->gc_thread) { |
696c018c NJ |
1233 | err = start_gc_thread(sbi); |
1234 | if (err) | |
1235 | goto restore_opts; | |
876dc59e GZ |
1236 | need_stop_gc = true; |
1237 | } | |
1238 | ||
faa0e55b JK |
1239 | if (*flags & MS_RDONLY) { |
1240 | writeback_inodes_sb(sb, WB_REASON_SYNC); | |
1241 | sync_inodes_sb(sb); | |
1242 | ||
1243 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1244 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1245 | f2fs_sync_fs(sb, 1); | |
1246 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1247 | } | |
1248 | ||
876dc59e GZ |
1249 | /* |
1250 | * We stop issue flush thread if FS is mounted as RO | |
1251 | * or if flush_merge is not passed in mount option. | |
1252 | */ | |
1253 | if ((*flags & MS_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { | |
5eba8c5d JK |
1254 | clear_opt(sbi, FLUSH_MERGE); |
1255 | destroy_flush_cmd_control(sbi, false); | |
1256 | } else { | |
2163d198 GZ |
1257 | err = create_flush_cmd_control(sbi); |
1258 | if (err) | |
a688b9d9 | 1259 | goto restore_gc; |
696c018c NJ |
1260 | } |
1261 | skip: | |
4b2414d0 CY |
1262 | #ifdef CONFIG_QUOTA |
1263 | /* Release old quota file names */ | |
1264 | for (i = 0; i < MAXQUOTAS; i++) | |
1265 | kfree(s_qf_names[i]); | |
1266 | #endif | |
696c018c | 1267 | /* Update the POSIXACL Flag */ |
df728b0f | 1268 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
696c018c | 1269 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); |
df728b0f | 1270 | |
696c018c | 1271 | return 0; |
876dc59e GZ |
1272 | restore_gc: |
1273 | if (need_restart_gc) { | |
1274 | if (start_gc_thread(sbi)) | |
1275 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1276 | "background gc thread has stopped"); |
876dc59e GZ |
1277 | } else if (need_stop_gc) { |
1278 | stop_gc_thread(sbi); | |
1279 | } | |
696c018c | 1280 | restore_opts: |
4b2414d0 CY |
1281 | #ifdef CONFIG_QUOTA |
1282 | sbi->s_jquota_fmt = s_jquota_fmt; | |
1283 | for (i = 0; i < MAXQUOTAS; i++) { | |
1284 | kfree(sbi->s_qf_names[i]); | |
1285 | sbi->s_qf_names[i] = s_qf_names[i]; | |
1286 | } | |
1287 | #endif | |
696c018c NJ |
1288 | sbi->mount_opt = org_mount_opt; |
1289 | sbi->active_logs = active_logs; | |
0abd675e | 1290 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1291 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1292 | sbi->fault_info = ffi; | |
1293 | #endif | |
696c018c NJ |
1294 | return err; |
1295 | } | |
1296 | ||
0abd675e CY |
1297 | #ifdef CONFIG_QUOTA |
1298 | /* Read data from quotafile */ | |
1299 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1300 | size_t len, loff_t off) | |
1301 | { | |
1302 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1303 | struct address_space *mapping = inode->i_mapping; | |
1304 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1305 | int offset = off & (sb->s_blocksize - 1); | |
1306 | int tocopy; | |
1307 | size_t toread; | |
1308 | loff_t i_size = i_size_read(inode); | |
1309 | struct page *page; | |
1310 | char *kaddr; | |
1311 | ||
1312 | if (off > i_size) | |
1313 | return 0; | |
1314 | ||
1315 | if (off + len > i_size) | |
1316 | len = i_size - off; | |
1317 | toread = len; | |
1318 | while (toread > 0) { | |
1319 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1320 | repeat: | |
1321 | page = read_mapping_page(mapping, blkidx, NULL); | |
1322 | if (IS_ERR(page)) | |
1323 | return PTR_ERR(page); | |
1324 | ||
1325 | lock_page(page); | |
1326 | ||
1327 | if (unlikely(page->mapping != mapping)) { | |
1328 | f2fs_put_page(page, 1); | |
1329 | goto repeat; | |
1330 | } | |
1331 | if (unlikely(!PageUptodate(page))) { | |
1332 | f2fs_put_page(page, 1); | |
1333 | return -EIO; | |
1334 | } | |
1335 | ||
1336 | kaddr = kmap_atomic(page); | |
1337 | memcpy(data, kaddr + offset, tocopy); | |
1338 | kunmap_atomic(kaddr); | |
1339 | f2fs_put_page(page, 1); | |
1340 | ||
1341 | offset = 0; | |
1342 | toread -= tocopy; | |
1343 | data += tocopy; | |
1344 | blkidx++; | |
1345 | } | |
1346 | return len; | |
1347 | } | |
1348 | ||
1349 | /* Write to quotafile */ | |
1350 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1351 | const char *data, size_t len, loff_t off) | |
1352 | { | |
1353 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1354 | struct address_space *mapping = inode->i_mapping; | |
1355 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1356 | int offset = off & (sb->s_blocksize - 1); | |
1357 | size_t towrite = len; | |
1358 | struct page *page; | |
1359 | char *kaddr; | |
1360 | int err = 0; | |
1361 | int tocopy; | |
1362 | ||
1363 | while (towrite > 0) { | |
1364 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1365 | towrite); | |
1366 | ||
1367 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, | |
1368 | &page, NULL); | |
1369 | if (unlikely(err)) | |
1370 | break; | |
1371 | ||
1372 | kaddr = kmap_atomic(page); | |
1373 | memcpy(kaddr + offset, data, tocopy); | |
1374 | kunmap_atomic(kaddr); | |
1375 | flush_dcache_page(page); | |
1376 | ||
1377 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1378 | page, NULL); | |
1379 | offset = 0; | |
1380 | towrite -= tocopy; | |
1381 | off += tocopy; | |
1382 | data += tocopy; | |
1383 | cond_resched(); | |
1384 | } | |
1385 | ||
1386 | if (len == towrite) | |
4f31d26b | 1387 | return 0; |
0abd675e CY |
1388 | inode->i_version++; |
1389 | inode->i_mtime = inode->i_ctime = current_time(inode); | |
1390 | f2fs_mark_inode_dirty_sync(inode, false); | |
1391 | return len - towrite; | |
1392 | } | |
1393 | ||
1394 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1395 | { | |
1396 | return F2FS_I(inode)->i_dquot; | |
1397 | } | |
1398 | ||
1399 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1400 | { | |
1401 | return &F2FS_I(inode)->i_reserved_quota; | |
1402 | } | |
1403 | ||
4b2414d0 CY |
1404 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1405 | { | |
1406 | return dquot_quota_on_mount(sbi->sb, sbi->s_qf_names[type], | |
1407 | sbi->s_jquota_fmt, type); | |
1408 | } | |
1409 | ||
1410 | void f2fs_enable_quota_files(struct f2fs_sb_info *sbi) | |
1411 | { | |
1412 | int i, ret; | |
1413 | ||
1414 | for (i = 0; i < MAXQUOTAS; i++) { | |
1415 | if (sbi->s_qf_names[i]) { | |
1416 | ret = f2fs_quota_on_mount(sbi, i); | |
1417 | if (ret < 0) | |
1418 | f2fs_msg(sbi->sb, KERN_ERR, | |
1419 | "Cannot turn on journaled " | |
1420 | "quota: error %d", ret); | |
1421 | } | |
1422 | } | |
1423 | } | |
1424 | ||
0abd675e CY |
1425 | static int f2fs_quota_sync(struct super_block *sb, int type) |
1426 | { | |
1427 | struct quota_info *dqopt = sb_dqopt(sb); | |
1428 | int cnt; | |
1429 | int ret; | |
1430 | ||
1431 | ret = dquot_writeback_dquots(sb, type); | |
1432 | if (ret) | |
1433 | return ret; | |
1434 | ||
1435 | /* | |
1436 | * Now when everything is written we can discard the pagecache so | |
1437 | * that userspace sees the changes. | |
1438 | */ | |
1439 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1440 | if (type != -1 && cnt != type) | |
1441 | continue; | |
1442 | if (!sb_has_quota_active(sb, cnt)) | |
1443 | continue; | |
1444 | ||
1445 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1446 | if (ret) | |
1447 | return ret; | |
1448 | ||
1449 | inode_lock(dqopt->files[cnt]); | |
1450 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1451 | inode_unlock(dqopt->files[cnt]); | |
1452 | } | |
1453 | return 0; | |
1454 | } | |
1455 | ||
1456 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1457 | const struct path *path) | |
1458 | { | |
1459 | struct inode *inode; | |
1460 | int err; | |
1461 | ||
9a20d391 | 1462 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1463 | if (err) |
1464 | return err; | |
1465 | ||
1466 | err = dquot_quota_on(sb, type, format_id, path); | |
1467 | if (err) | |
1468 | return err; | |
1469 | ||
1470 | inode = d_inode(path->dentry); | |
1471 | ||
1472 | inode_lock(inode); | |
1473 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1474 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1475 | S_NOATIME | S_IMMUTABLE); | |
1476 | inode_unlock(inode); | |
1477 | f2fs_mark_inode_dirty_sync(inode, false); | |
1478 | ||
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1483 | { | |
1484 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1485 | int err; | |
1486 | ||
1487 | if (!inode || !igrab(inode)) | |
1488 | return dquot_quota_off(sb, type); | |
1489 | ||
9a20d391 | 1490 | f2fs_quota_sync(sb, type); |
0abd675e CY |
1491 | |
1492 | err = dquot_quota_off(sb, type); | |
1493 | if (err) | |
1494 | goto out_put; | |
1495 | ||
1496 | inode_lock(inode); | |
1497 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1498 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1499 | inode_unlock(inode); | |
1500 | f2fs_mark_inode_dirty_sync(inode, false); | |
1501 | out_put: | |
1502 | iput(inode); | |
1503 | return err; | |
1504 | } | |
1505 | ||
4b2414d0 | 1506 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1507 | { |
1508 | int type; | |
1509 | ||
1510 | for (type = 0; type < MAXQUOTAS; type++) | |
1511 | f2fs_quota_off(sb, type); | |
1512 | } | |
1513 | ||
5c57132e CY |
1514 | int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
1515 | { | |
1516 | *projid = F2FS_I(inode)->i_projid; | |
1517 | return 0; | |
1518 | } | |
1519 | ||
0abd675e CY |
1520 | static const struct dquot_operations f2fs_quota_operations = { |
1521 | .get_reserved_space = f2fs_get_reserved_space, | |
1522 | .write_dquot = dquot_commit, | |
1523 | .acquire_dquot = dquot_acquire, | |
1524 | .release_dquot = dquot_release, | |
1525 | .mark_dirty = dquot_mark_dquot_dirty, | |
1526 | .write_info = dquot_commit_info, | |
1527 | .alloc_dquot = dquot_alloc, | |
1528 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1529 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1530 | .get_next_id = dquot_get_next_id, |
1531 | }; | |
1532 | ||
1533 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1534 | .quota_on = f2fs_quota_on, | |
1535 | .quota_off = f2fs_quota_off, | |
1536 | .quota_sync = f2fs_quota_sync, | |
1537 | .get_state = dquot_get_state, | |
1538 | .set_info = dquot_set_dqinfo, | |
1539 | .get_dqblk = dquot_get_dqblk, | |
1540 | .set_dqblk = dquot_set_dqblk, | |
1541 | .get_nextdqblk = dquot_get_next_dqblk, | |
1542 | }; | |
1543 | #else | |
4b2414d0 | 1544 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1545 | { |
1546 | } | |
1547 | #endif | |
1548 | ||
f62fc9f9 | 1549 | static const struct super_operations f2fs_sops = { |
aff063e2 | 1550 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 1551 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1552 | .destroy_inode = f2fs_destroy_inode, |
1553 | .write_inode = f2fs_write_inode, | |
b3783873 | 1554 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1555 | .show_options = f2fs_show_options, |
0abd675e CY |
1556 | #ifdef CONFIG_QUOTA |
1557 | .quota_read = f2fs_quota_read, | |
1558 | .quota_write = f2fs_quota_write, | |
1559 | .get_dquots = f2fs_get_dquots, | |
1560 | #endif | |
aff063e2 JK |
1561 | .evict_inode = f2fs_evict_inode, |
1562 | .put_super = f2fs_put_super, | |
1563 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1564 | .freeze_fs = f2fs_freeze, |
1565 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1566 | .statfs = f2fs_statfs, |
696c018c | 1567 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1568 | }; |
1569 | ||
0b81d077 JK |
1570 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1571 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1572 | { | |
1573 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1574 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1575 | ctx, len, NULL); | |
1576 | } | |
1577 | ||
1578 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1579 | void *fs_data) | |
1580 | { | |
1581 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1582 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1583 | ctx, len, fs_data, XATTR_CREATE); | |
1584 | } | |
1585 | ||
1586 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1587 | { | |
1588 | return S_ISLNK(inode->i_mode) ? | |
1589 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1590 | } | |
1591 | ||
6f69f0ed | 1592 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1593 | .key_prefix = "f2fs:", |
0b81d077 JK |
1594 | .get_context = f2fs_get_context, |
1595 | .set_context = f2fs_set_context, | |
1596 | .is_encrypted = f2fs_encrypted_inode, | |
1597 | .empty_dir = f2fs_empty_dir, | |
1598 | .max_namelen = f2fs_max_namelen, | |
1599 | }; | |
1600 | #else | |
6f69f0ed | 1601 | static const struct fscrypt_operations f2fs_cryptops = { |
0b81d077 JK |
1602 | .is_encrypted = f2fs_encrypted_inode, |
1603 | }; | |
1604 | #endif | |
1605 | ||
aff063e2 JK |
1606 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1607 | u64 ino, u32 generation) | |
1608 | { | |
1609 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1610 | struct inode *inode; | |
1611 | ||
d6b7d4b3 | 1612 | if (check_nid_range(sbi, ino)) |
910bb12d | 1613 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1614 | |
1615 | /* | |
1616 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1617 | * However f2fs_iget currently does appropriate checks to handle stale | |
1618 | * inodes so everything is OK. | |
1619 | */ | |
1620 | inode = f2fs_iget(sb, ino); | |
1621 | if (IS_ERR(inode)) | |
1622 | return ERR_CAST(inode); | |
6bacf52f | 1623 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1624 | /* we didn't find the right inode.. */ |
1625 | iput(inode); | |
1626 | return ERR_PTR(-ESTALE); | |
1627 | } | |
1628 | return inode; | |
1629 | } | |
1630 | ||
1631 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1632 | int fh_len, int fh_type) | |
1633 | { | |
1634 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1635 | f2fs_nfs_get_inode); | |
1636 | } | |
1637 | ||
1638 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1639 | int fh_len, int fh_type) | |
1640 | { | |
1641 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1642 | f2fs_nfs_get_inode); | |
1643 | } | |
1644 | ||
1645 | static const struct export_operations f2fs_export_ops = { | |
1646 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1647 | .fh_to_parent = f2fs_fh_to_parent, | |
1648 | .get_parent = f2fs_get_parent, | |
1649 | }; | |
1650 | ||
e0afc4d6 | 1651 | static loff_t max_file_blocks(void) |
aff063e2 | 1652 | { |
7a2af766 | 1653 | loff_t result = 0; |
aff063e2 JK |
1654 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1655 | ||
7a2af766 CY |
1656 | /* |
1657 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
1658 | * F2FS_INLINE_XATTR_ADDRS), but now f2fs try to reserve more | |
1659 | * space in inode.i_addr, it will be more safe to reassign | |
1660 | * result as zero. | |
1661 | */ | |
1662 | ||
aff063e2 JK |
1663 | /* two direct node blocks */ |
1664 | result += (leaf_count * 2); | |
1665 | ||
1666 | /* two indirect node blocks */ | |
1667 | leaf_count *= NIDS_PER_BLOCK; | |
1668 | result += (leaf_count * 2); | |
1669 | ||
1670 | /* one double indirect node block */ | |
1671 | leaf_count *= NIDS_PER_BLOCK; | |
1672 | result += leaf_count; | |
1673 | ||
aff063e2 JK |
1674 | return result; |
1675 | } | |
1676 | ||
fd694733 JK |
1677 | static int __f2fs_commit_super(struct buffer_head *bh, |
1678 | struct f2fs_super_block *super) | |
1679 | { | |
1680 | lock_buffer(bh); | |
1681 | if (super) | |
1682 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
1683 | set_buffer_uptodate(bh); | |
1684 | set_buffer_dirty(bh); | |
1685 | unlock_buffer(bh); | |
1686 | ||
1687 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1688 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1689 | } |
1690 | ||
df728b0f | 1691 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1692 | struct buffer_head *bh) |
9a59b62f | 1693 | { |
fd694733 JK |
1694 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1695 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1696 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1697 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1698 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1699 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1700 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1701 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1702 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1703 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1704 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1705 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1706 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1707 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1708 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1709 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1710 | u64 main_end_blkaddr = main_blkaddr + |
1711 | (segment_count_main << log_blocks_per_seg); | |
1712 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1713 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1714 | |
1715 | if (segment0_blkaddr != cp_blkaddr) { | |
1716 | f2fs_msg(sb, KERN_INFO, | |
1717 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1718 | segment0_blkaddr, cp_blkaddr); | |
1719 | return true; | |
1720 | } | |
1721 | ||
1722 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1723 | sit_blkaddr) { | |
1724 | f2fs_msg(sb, KERN_INFO, | |
1725 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1726 | cp_blkaddr, sit_blkaddr, | |
1727 | segment_count_ckpt << log_blocks_per_seg); | |
1728 | return true; | |
1729 | } | |
1730 | ||
1731 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1732 | nat_blkaddr) { | |
1733 | f2fs_msg(sb, KERN_INFO, | |
1734 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1735 | sit_blkaddr, nat_blkaddr, | |
1736 | segment_count_sit << log_blocks_per_seg); | |
1737 | return true; | |
1738 | } | |
1739 | ||
1740 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1741 | ssa_blkaddr) { | |
1742 | f2fs_msg(sb, KERN_INFO, | |
1743 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1744 | nat_blkaddr, ssa_blkaddr, | |
1745 | segment_count_nat << log_blocks_per_seg); | |
1746 | return true; | |
1747 | } | |
1748 | ||
1749 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
1750 | main_blkaddr) { | |
1751 | f2fs_msg(sb, KERN_INFO, | |
1752 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
1753 | ssa_blkaddr, main_blkaddr, | |
1754 | segment_count_ssa << log_blocks_per_seg); | |
1755 | return true; | |
1756 | } | |
1757 | ||
fd694733 | 1758 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 1759 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 1760 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 1761 | main_blkaddr, |
fd694733 JK |
1762 | segment0_blkaddr + |
1763 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
1764 | segment_count_main << log_blocks_per_seg); |
1765 | return true; | |
fd694733 JK |
1766 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
1767 | int err = 0; | |
1768 | char *res; | |
1769 | ||
1770 | /* fix in-memory information all the time */ | |
1771 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
1772 | segment0_blkaddr) >> log_blocks_per_seg); | |
1773 | ||
1774 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 1775 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
1776 | res = "internally"; |
1777 | } else { | |
1778 | err = __f2fs_commit_super(bh, NULL); | |
1779 | res = err ? "failed" : "done"; | |
1780 | } | |
1781 | f2fs_msg(sb, KERN_INFO, | |
1782 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
1783 | res, main_blkaddr, | |
1784 | segment0_blkaddr + | |
1785 | (segment_count << log_blocks_per_seg), | |
1786 | segment_count_main << log_blocks_per_seg); | |
1787 | if (err) | |
1788 | return true; | |
9a59b62f | 1789 | } |
9a59b62f CY |
1790 | return false; |
1791 | } | |
1792 | ||
df728b0f | 1793 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 1794 | struct buffer_head *bh) |
aff063e2 | 1795 | { |
fd694733 JK |
1796 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1797 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1798 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
1799 | unsigned int blocksize; |
1800 | ||
a07ef784 NJ |
1801 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
1802 | f2fs_msg(sb, KERN_INFO, | |
1803 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
1804 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 1805 | return 1; |
a07ef784 | 1806 | } |
aff063e2 | 1807 | |
5c9b4692 | 1808 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 1809 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 1810 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 1811 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 1812 | PAGE_SIZE); |
5c9b4692 | 1813 | return 1; |
1814 | } | |
1815 | ||
aff063e2 JK |
1816 | /* Currently, support only 4KB block size */ |
1817 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 1818 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
1819 | f2fs_msg(sb, KERN_INFO, |
1820 | "Invalid blocksize (%u), supports only 4KB\n", | |
1821 | blocksize); | |
aff063e2 | 1822 | return 1; |
a07ef784 | 1823 | } |
5c9b4692 | 1824 | |
9a59b62f CY |
1825 | /* check log blocks per segment */ |
1826 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
1827 | f2fs_msg(sb, KERN_INFO, | |
1828 | "Invalid log blocks per segment (%u)\n", | |
1829 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
1830 | return 1; | |
1831 | } | |
1832 | ||
55cf9cb6 CY |
1833 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
1834 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
1835 | F2FS_MAX_LOG_SECTOR_SIZE || | |
1836 | le32_to_cpu(raw_super->log_sectorsize) < | |
1837 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
1838 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
1839 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1840 | return 1; |
a07ef784 | 1841 | } |
55cf9cb6 CY |
1842 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
1843 | le32_to_cpu(raw_super->log_sectorsize) != | |
1844 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
1845 | f2fs_msg(sb, KERN_INFO, | |
1846 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
1847 | le32_to_cpu(raw_super->log_sectors_per_block), | |
1848 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1849 | return 1; |
a07ef784 | 1850 | } |
9a59b62f CY |
1851 | |
1852 | /* check reserved ino info */ | |
1853 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
1854 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
1855 | le32_to_cpu(raw_super->root_ino) != 3) { | |
1856 | f2fs_msg(sb, KERN_INFO, | |
1857 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
1858 | le32_to_cpu(raw_super->node_ino), | |
1859 | le32_to_cpu(raw_super->meta_ino), | |
1860 | le32_to_cpu(raw_super->root_ino)); | |
1861 | return 1; | |
1862 | } | |
1863 | ||
b9dd4618 JQ |
1864 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
1865 | f2fs_msg(sb, KERN_INFO, | |
1866 | "Invalid segment count (%u)", | |
1867 | le32_to_cpu(raw_super->segment_count)); | |
1868 | return 1; | |
1869 | } | |
1870 | ||
9a59b62f | 1871 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 1872 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
1873 | return 1; |
1874 | ||
aff063e2 JK |
1875 | return 0; |
1876 | } | |
1877 | ||
984ec63c | 1878 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
1879 | { |
1880 | unsigned int total, fsmeta; | |
577e3495 JK |
1881 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
1882 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 1883 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
1884 | unsigned int main_segs, blocks_per_seg; |
1885 | int i; | |
aff063e2 JK |
1886 | |
1887 | total = le32_to_cpu(raw_super->segment_count); | |
1888 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
1889 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
1890 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
1891 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
1892 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
1893 | ||
6bacf52f | 1894 | if (unlikely(fsmeta >= total)) |
aff063e2 | 1895 | return 1; |
577e3495 | 1896 | |
2040fce8 JK |
1897 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
1898 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
1899 | ||
1900 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
1901 | ovp_segments == 0 || reserved_segments == 0)) { | |
1902 | f2fs_msg(sbi->sb, KERN_ERR, | |
1903 | "Wrong layout: check mkfs.f2fs version"); | |
1904 | return 1; | |
1905 | } | |
1906 | ||
15d3042a JQ |
1907 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
1908 | blocks_per_seg = sbi->blocks_per_seg; | |
1909 | ||
1910 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
1911 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
1912 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
1913 | return 1; | |
1914 | } | |
1915 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
1916 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
1917 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
1918 | return 1; | |
1919 | } | |
1920 | ||
1e968fdf | 1921 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
1922 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
1923 | return 1; | |
1924 | } | |
aff063e2 JK |
1925 | return 0; |
1926 | } | |
1927 | ||
1928 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
1929 | { | |
1930 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 1931 | int i, j; |
aff063e2 JK |
1932 | |
1933 | sbi->log_sectors_per_block = | |
1934 | le32_to_cpu(raw_super->log_sectors_per_block); | |
1935 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
1936 | sbi->blocksize = 1 << sbi->log_blocksize; | |
1937 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
1938 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
1939 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
1940 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
1941 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
1942 | sbi->total_node_count = | |
1943 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
1944 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
1945 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
1946 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
1947 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 1948 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 1949 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 1950 | |
ab9fa662 | 1951 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 1952 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 1953 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 1954 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 1955 | |
35782b23 JK |
1956 | for (i = 0; i < NR_COUNT_TYPE; i++) |
1957 | atomic_set(&sbi->nr_pages[i], 0); | |
1958 | ||
687de7f1 JK |
1959 | atomic_set(&sbi->wb_sync_req, 0); |
1960 | ||
2658e50d JK |
1961 | INIT_LIST_HEAD(&sbi->s_list); |
1962 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
1963 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
1964 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
1965 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 1966 | spin_lock_init(&sbi->cp_lock); |
aff063e2 JK |
1967 | } |
1968 | ||
523be8a6 JK |
1969 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
1970 | { | |
35782b23 | 1971 | int err; |
41382ec4 | 1972 | |
513c5f37 JK |
1973 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
1974 | if (err) | |
1975 | return err; | |
1976 | ||
1977 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 1978 | GFP_KERNEL); |
523be8a6 JK |
1979 | } |
1980 | ||
178053e2 | 1981 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 1982 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 1983 | { |
3c62be17 | 1984 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
1985 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
1986 | sector_t sector = 0; | |
1987 | struct blk_zone *zones; | |
1988 | unsigned int i, nr_zones; | |
1989 | unsigned int n = 0; | |
1990 | int err = -EIO; | |
1991 | ||
1992 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
1993 | return 0; | |
1994 | ||
3c62be17 | 1995 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 1996 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 1997 | return -EINVAL; |
f99e8648 | 1998 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
1999 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2000 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2001 | return -EINVAL; | |
178053e2 | 2002 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2003 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2004 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2005 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2006 | FDEV(devi).nr_blkz++; |
178053e2 | 2007 | |
3c62be17 JK |
2008 | FDEV(devi).blkz_type = kmalloc(FDEV(devi).nr_blkz, GFP_KERNEL); |
2009 | if (!FDEV(devi).blkz_type) | |
178053e2 DLM |
2010 | return -ENOMEM; |
2011 | ||
2012 | #define F2FS_REPORT_NR_ZONES 4096 | |
2013 | ||
2014 | zones = kcalloc(F2FS_REPORT_NR_ZONES, sizeof(struct blk_zone), | |
2015 | GFP_KERNEL); | |
2016 | if (!zones) | |
2017 | return -ENOMEM; | |
2018 | ||
2019 | /* Get block zones type */ | |
2020 | while (zones && sector < nr_sectors) { | |
2021 | ||
2022 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2023 | err = blkdev_report_zones(bdev, sector, | |
2024 | zones, &nr_zones, | |
2025 | GFP_KERNEL); | |
2026 | if (err) | |
2027 | break; | |
2028 | if (!nr_zones) { | |
2029 | err = -EIO; | |
2030 | break; | |
2031 | } | |
2032 | ||
2033 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2034 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2035 | sector += zones[i].len; |
2036 | n++; | |
2037 | } | |
2038 | } | |
2039 | ||
2040 | kfree(zones); | |
2041 | ||
2042 | return err; | |
2043 | } | |
2044 | #endif | |
2045 | ||
9076a75f GZ |
2046 | /* |
2047 | * Read f2fs raw super block. | |
2b39e907 SL |
2048 | * Because we have two copies of super block, so read both of them |
2049 | * to get the first valid one. If any one of them is broken, we pass | |
2050 | * them recovery flag back to the caller. | |
9076a75f | 2051 | */ |
df728b0f | 2052 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2053 | struct f2fs_super_block **raw_super, |
e8240f65 | 2054 | int *valid_super_block, int *recovery) |
14d7e9de | 2055 | { |
df728b0f | 2056 | struct super_block *sb = sbi->sb; |
2b39e907 | 2057 | int block; |
e8240f65 | 2058 | struct buffer_head *bh; |
fd694733 | 2059 | struct f2fs_super_block *super; |
da554e48 | 2060 | int err = 0; |
14d7e9de | 2061 | |
b39f0de2 YH |
2062 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2063 | if (!super) | |
2064 | return -ENOMEM; | |
2b39e907 SL |
2065 | |
2066 | for (block = 0; block < 2; block++) { | |
2067 | bh = sb_bread(sb, block); | |
2068 | if (!bh) { | |
2069 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2070 | block + 1); |
2b39e907 SL |
2071 | err = -EIO; |
2072 | continue; | |
2073 | } | |
14d7e9de | 2074 | |
2b39e907 | 2075 | /* sanity checking of raw super */ |
df728b0f | 2076 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
2077 | f2fs_msg(sb, KERN_ERR, |
2078 | "Can't find valid F2FS filesystem in %dth superblock", | |
2079 | block + 1); | |
2080 | err = -EINVAL; | |
2081 | brelse(bh); | |
2082 | continue; | |
2083 | } | |
14d7e9de | 2084 | |
2b39e907 | 2085 | if (!*raw_super) { |
fd694733 JK |
2086 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2087 | sizeof(*super)); | |
2b39e907 SL |
2088 | *valid_super_block = block; |
2089 | *raw_super = super; | |
2090 | } | |
2091 | brelse(bh); | |
da554e48 | 2092 | } |
2093 | ||
2b39e907 SL |
2094 | /* Fail to read any one of the superblocks*/ |
2095 | if (err < 0) | |
2096 | *recovery = 1; | |
da554e48 | 2097 | |
da554e48 | 2098 | /* No valid superblock */ |
2b39e907 | 2099 | if (!*raw_super) |
b39f0de2 | 2100 | kfree(super); |
2b39e907 SL |
2101 | else |
2102 | err = 0; | |
da554e48 | 2103 | |
2b39e907 | 2104 | return err; |
14d7e9de | 2105 | } |
2106 | ||
fd694733 | 2107 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2108 | { |
5d909cdb | 2109 | struct buffer_head *bh; |
26d815ad JK |
2110 | int err; |
2111 | ||
df728b0f JK |
2112 | if ((recover && f2fs_readonly(sbi->sb)) || |
2113 | bdev_read_only(sbi->sb->s_bdev)) { | |
2114 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2115 | return -EROFS; |
df728b0f | 2116 | } |
f2353d7b | 2117 | |
fd694733 JK |
2118 | /* write back-up superblock first */ |
2119 | bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); | |
5d909cdb JK |
2120 | if (!bh) |
2121 | return -EIO; | |
fd694733 | 2122 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2123 | brelse(bh); |
c5bda1c8 CY |
2124 | |
2125 | /* if we are in recovery path, skip writing valid superblock */ | |
2126 | if (recover || err) | |
5d909cdb | 2127 | return err; |
26d815ad JK |
2128 | |
2129 | /* write current valid superblock */ | |
fd694733 JK |
2130 | bh = sb_getblk(sbi->sb, sbi->valid_super_block); |
2131 | if (!bh) | |
2132 | return -EIO; | |
2133 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2134 | brelse(bh); | |
2135 | return err; | |
26d815ad JK |
2136 | } |
2137 | ||
3c62be17 JK |
2138 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2139 | { | |
2140 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2141 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2142 | int i; |
2143 | ||
7bb3a371 MS |
2144 | /* Initialize single device information */ |
2145 | if (!RDEV(0).path[0]) { | |
2146 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2147 | return 0; |
7bb3a371 MS |
2148 | max_devices = 1; |
2149 | } | |
3c62be17 | 2150 | |
7bb3a371 MS |
2151 | /* |
2152 | * Initialize multiple devices information, or single | |
2153 | * zoned block device information. | |
2154 | */ | |
2155 | sbi->devs = kcalloc(max_devices, sizeof(struct f2fs_dev_info), | |
2156 | GFP_KERNEL); | |
2157 | if (!sbi->devs) | |
2158 | return -ENOMEM; | |
3c62be17 | 2159 | |
7bb3a371 | 2160 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2161 | |
7bb3a371 MS |
2162 | if (i > 0 && !RDEV(i).path[0]) |
2163 | break; | |
2164 | ||
2165 | if (max_devices == 1) { | |
2166 | /* Single zoned block device mount */ | |
2167 | FDEV(0).bdev = | |
2168 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2169 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2170 | } else { |
2171 | /* Multi-device mount */ | |
2172 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2173 | FDEV(i).total_segments = | |
2174 | le32_to_cpu(RDEV(i).total_segments); | |
2175 | if (i == 0) { | |
2176 | FDEV(i).start_blk = 0; | |
2177 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2178 | (FDEV(i).total_segments << | |
2179 | sbi->log_blocks_per_seg) - 1 + | |
2180 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2181 | } else { | |
2182 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2183 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2184 | (FDEV(i).total_segments << | |
2185 | sbi->log_blocks_per_seg) - 1; | |
2186 | } | |
2187 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2188 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2189 | } |
3c62be17 JK |
2190 | if (IS_ERR(FDEV(i).bdev)) |
2191 | return PTR_ERR(FDEV(i).bdev); | |
2192 | ||
2193 | /* to release errored devices */ | |
2194 | sbi->s_ndevs = i + 1; | |
2195 | ||
2196 | #ifdef CONFIG_BLK_DEV_ZONED | |
2197 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
2198 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
2199 | f2fs_msg(sbi->sb, KERN_ERR, | |
2200 | "Zoned block device feature not enabled\n"); | |
2201 | return -EINVAL; | |
2202 | } | |
2203 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
2204 | if (init_blkz_info(sbi, i)) { | |
2205 | f2fs_msg(sbi->sb, KERN_ERR, | |
2206 | "Failed to initialize F2FS blkzone information"); | |
2207 | return -EINVAL; | |
2208 | } | |
7bb3a371 MS |
2209 | if (max_devices == 1) |
2210 | break; | |
3c62be17 JK |
2211 | f2fs_msg(sbi->sb, KERN_INFO, |
2212 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
2213 | i, FDEV(i).path, | |
2214 | FDEV(i).total_segments, | |
2215 | FDEV(i).start_blk, FDEV(i).end_blk, | |
2216 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
2217 | "Host-aware" : "Host-managed"); | |
2218 | continue; | |
2219 | } | |
2220 | #endif | |
2221 | f2fs_msg(sbi->sb, KERN_INFO, | |
2222 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
2223 | i, FDEV(i).path, | |
2224 | FDEV(i).total_segments, | |
2225 | FDEV(i).start_blk, FDEV(i).end_blk); | |
2226 | } | |
0a595eba JK |
2227 | f2fs_msg(sbi->sb, KERN_INFO, |
2228 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
2229 | return 0; |
2230 | } | |
2231 | ||
aff063e2 JK |
2232 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
2233 | { | |
2234 | struct f2fs_sb_info *sbi; | |
da554e48 | 2235 | struct f2fs_super_block *raw_super; |
aff063e2 | 2236 | struct inode *root; |
99e3e858 | 2237 | int err; |
2adc3505 | 2238 | bool retry = true, need_fsck = false; |
dabc4a5c | 2239 | char *options = NULL; |
e8240f65 | 2240 | int recovery, i, valid_super_block; |
8f1dbbbb | 2241 | struct curseg_info *seg_i; |
aff063e2 | 2242 | |
ed2e621a | 2243 | try_onemore: |
da554e48 | 2244 | err = -EINVAL; |
2245 | raw_super = NULL; | |
e8240f65 | 2246 | valid_super_block = -1; |
da554e48 | 2247 | recovery = 0; |
2248 | ||
aff063e2 JK |
2249 | /* allocate memory for f2fs-specific super block info */ |
2250 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
2251 | if (!sbi) | |
2252 | return -ENOMEM; | |
2253 | ||
df728b0f JK |
2254 | sbi->sb = sb; |
2255 | ||
43b6573b KM |
2256 | /* Load the checksum driver */ |
2257 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
2258 | if (IS_ERR(sbi->s_chksum_driver)) { | |
2259 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
2260 | err = PTR_ERR(sbi->s_chksum_driver); | |
2261 | sbi->s_chksum_driver = NULL; | |
2262 | goto free_sbi; | |
2263 | } | |
2264 | ||
ff9234ad | 2265 | /* set a block size */ |
6bacf52f | 2266 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 2267 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 2268 | goto free_sbi; |
a07ef784 | 2269 | } |
aff063e2 | 2270 | |
df728b0f | 2271 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 2272 | &recovery); |
9076a75f GZ |
2273 | if (err) |
2274 | goto free_sbi; | |
2275 | ||
5fb08372 | 2276 | sb->s_fs_info = sbi; |
52763a4b JK |
2277 | sbi->raw_super = raw_super; |
2278 | ||
704956ec CY |
2279 | /* precompute checksum seed for metadata */ |
2280 | if (f2fs_sb_has_inode_chksum(sb)) | |
2281 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, | |
2282 | sizeof(raw_super->uuid)); | |
2283 | ||
d1b959c8 DLM |
2284 | /* |
2285 | * The BLKZONED feature indicates that the drive was formatted with | |
2286 | * zone alignment optimization. This is optional for host-aware | |
2287 | * devices, but mandatory for host-managed zoned block devices. | |
2288 | */ | |
2289 | #ifndef CONFIG_BLK_DEV_ZONED | |
2290 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
2291 | f2fs_msg(sb, KERN_ERR, | |
2292 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2293 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2294 | goto free_sb_buf; |
2295 | } | |
d1b959c8 | 2296 | #endif |
498c5e9f | 2297 | default_options(sbi); |
aff063e2 | 2298 | /* parse mount options */ |
dabc4a5c JK |
2299 | options = kstrdup((const char *)data, GFP_KERNEL); |
2300 | if (data && !options) { | |
2301 | err = -ENOMEM; | |
aff063e2 | 2302 | goto free_sb_buf; |
dabc4a5c JK |
2303 | } |
2304 | ||
2305 | err = parse_options(sb, options); | |
2306 | if (err) | |
2307 | goto free_options; | |
aff063e2 | 2308 | |
e0afc4d6 CY |
2309 | sbi->max_file_blocks = max_file_blocks(); |
2310 | sb->s_maxbytes = sbi->max_file_blocks << | |
2311 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2312 | sb->s_max_links = F2FS_LINK_MAX; |
2313 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2314 | ||
0abd675e CY |
2315 | #ifdef CONFIG_QUOTA |
2316 | sb->dq_op = &f2fs_quota_operations; | |
2317 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2318 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
0abd675e CY |
2319 | #endif |
2320 | ||
aff063e2 | 2321 | sb->s_op = &f2fs_sops; |
0b81d077 | 2322 | sb->s_cop = &f2fs_cryptops; |
aff063e2 JK |
2323 | sb->s_xattr = f2fs_xattr_handlers; |
2324 | sb->s_export_op = &f2fs_export_ops; | |
2325 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 JK |
2326 | sb->s_time_gran = 1; |
2327 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | | |
2328 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); | |
85787090 | 2329 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
aff063e2 JK |
2330 | |
2331 | /* init f2fs-specific super block info */ | |
e8240f65 | 2332 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2333 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2334 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2335 | init_rwsem(&sbi->node_write); |
59c9081b | 2336 | init_rwsem(&sbi->node_change); |
315df839 JK |
2337 | |
2338 | /* disallow all the data/node/meta page writes */ | |
2339 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2340 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2341 | |
b0af6d49 CY |
2342 | /* init iostat info */ |
2343 | spin_lock_init(&sbi->iostat_lock); | |
2344 | sbi->iostat_enable = false; | |
2345 | ||
458e6197 | 2346 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2347 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2348 | int j; | |
2349 | ||
2350 | sbi->write_io[i] = kmalloc(n * sizeof(struct f2fs_bio_info), | |
2351 | GFP_KERNEL); | |
b63def91 CJ |
2352 | if (!sbi->write_io[i]) { |
2353 | err = -ENOMEM; | |
a912b54d | 2354 | goto free_options; |
b63def91 | 2355 | } |
a912b54d JK |
2356 | |
2357 | for (j = HOT; j < n; j++) { | |
2358 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2359 | sbi->write_io[i][j].sbi = sbi; | |
2360 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2361 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2362 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2363 | } |
458e6197 | 2364 | } |
971767ca | 2365 | |
b873b798 | 2366 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2367 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2368 | init_sb_info(sbi); |
2369 | ||
523be8a6 JK |
2370 | err = init_percpu_info(sbi); |
2371 | if (err) | |
2372 | goto free_options; | |
2373 | ||
0a595eba JK |
2374 | if (F2FS_IO_SIZE(sbi) > 1) { |
2375 | sbi->write_io_dummy = | |
a3ebfe4f | 2376 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2377 | if (!sbi->write_io_dummy) { |
2378 | err = -ENOMEM; | |
0a595eba | 2379 | goto free_options; |
1727f317 | 2380 | } |
0a595eba JK |
2381 | } |
2382 | ||
aff063e2 JK |
2383 | /* get an inode for meta space */ |
2384 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2385 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2386 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2387 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2388 | goto free_io_dummy; |
aff063e2 JK |
2389 | } |
2390 | ||
2391 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2392 | if (err) { |
2393 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2394 | goto free_meta_inode; |
a07ef784 | 2395 | } |
aff063e2 | 2396 | |
3c62be17 JK |
2397 | /* Initialize device list */ |
2398 | err = f2fs_scan_devices(sbi); | |
2399 | if (err) { | |
2400 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2401 | goto free_devices; | |
2402 | } | |
2403 | ||
aff063e2 JK |
2404 | sbi->total_valid_node_count = |
2405 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2406 | percpu_counter_set(&sbi->total_valid_inode_count, |
2407 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2408 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2409 | sbi->total_valid_block_count = | |
2410 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2411 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2412 | sbi->reserved_blocks = 0; |
41382ec4 | 2413 | |
c227f912 CY |
2414 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2415 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2416 | spin_lock_init(&sbi->inode_lock[i]); | |
2417 | } | |
aff063e2 | 2418 | |
1dcc336b CY |
2419 | init_extent_cache_info(sbi); |
2420 | ||
6451e041 | 2421 | init_ino_entry_info(sbi); |
aff063e2 JK |
2422 | |
2423 | /* setup f2fs internal modules */ | |
2424 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2425 | if (err) { |
2426 | f2fs_msg(sb, KERN_ERR, | |
2427 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2428 | goto free_sm; |
a07ef784 | 2429 | } |
aff063e2 | 2430 | err = build_node_manager(sbi); |
a07ef784 NJ |
2431 | if (err) { |
2432 | f2fs_msg(sb, KERN_ERR, | |
2433 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2434 | goto free_nm; |
a07ef784 | 2435 | } |
aff063e2 | 2436 | |
8f1dbbbb SL |
2437 | /* For write statistics */ |
2438 | if (sb->s_bdev->bd_part) | |
2439 | sbi->sectors_written_start = | |
2440 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2441 | ||
2442 | /* Read accumulated write IO statistics if exists */ | |
2443 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2444 | if (__exist_node_summaries(sbi)) | |
2445 | sbi->kbytes_written = | |
b2dde6fc | 2446 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2447 | |
aff063e2 JK |
2448 | build_gc_manager(sbi); |
2449 | ||
2450 | /* get an inode for node space */ | |
2451 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2452 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2453 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2454 | err = PTR_ERR(sbi->node_inode); |
2455 | goto free_nm; | |
2456 | } | |
2457 | ||
2658e50d JK |
2458 | f2fs_join_shrinker(sbi); |
2459 | ||
aa51d08a JK |
2460 | err = f2fs_build_stats(sbi); |
2461 | if (err) | |
2462 | goto free_nm; | |
2463 | ||
aff063e2 JK |
2464 | /* read root inode and dentry */ |
2465 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2466 | if (IS_ERR(root)) { | |
a07ef784 | 2467 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 JK |
2468 | err = PTR_ERR(root); |
2469 | goto free_node_inode; | |
2470 | } | |
8f99a946 | 2471 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2472 | iput(root); |
8f99a946 | 2473 | err = -EINVAL; |
9d847950 | 2474 | goto free_node_inode; |
8f99a946 | 2475 | } |
aff063e2 JK |
2476 | |
2477 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2478 | if (!sb->s_root) { | |
2479 | err = -ENOMEM; | |
2480 | goto free_root_inode; | |
2481 | } | |
2482 | ||
dc6b2055 | 2483 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2484 | if (err) |
a398101a | 2485 | goto free_root_inode; |
b59d0bae | 2486 | |
4b2414d0 CY |
2487 | /* if there are nt orphan nodes free them */ |
2488 | err = recover_orphan_inodes(sbi); | |
2489 | if (err) | |
2490 | goto free_sysfs; | |
2491 | ||
6437d1b0 JK |
2492 | /* recover fsynced data */ |
2493 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2494 | /* |
2495 | * mount should be failed, when device has readonly mode, and | |
2496 | * previous checkpoint was not done by clean system shutdown. | |
2497 | */ | |
2498 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2499 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2500 | err = -EROFS; |
4b2414d0 | 2501 | goto free_meta; |
081d78c2 | 2502 | } |
2adc3505 CY |
2503 | |
2504 | if (need_fsck) | |
2505 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2506 | ||
a468f0ef JK |
2507 | if (!retry) |
2508 | goto skip_recovery; | |
2509 | ||
6781eabb JK |
2510 | err = recover_fsync_data(sbi, false); |
2511 | if (err < 0) { | |
2adc3505 | 2512 | need_fsck = true; |
6437d1b0 | 2513 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2514 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 2515 | goto free_meta; |
ed2e621a | 2516 | } |
6781eabb JK |
2517 | } else { |
2518 | err = recover_fsync_data(sbi, true); | |
2519 | ||
2520 | if (!f2fs_readonly(sb) && err > 0) { | |
2521 | err = -EINVAL; | |
2522 | f2fs_msg(sb, KERN_ERR, | |
2523 | "Need to recover fsync data"); | |
a398101a | 2524 | goto free_sysfs; |
6781eabb | 2525 | } |
6437d1b0 | 2526 | } |
a468f0ef | 2527 | skip_recovery: |
315df839 JK |
2528 | /* recover_fsync_data() cleared this already */ |
2529 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2530 | |
6437d1b0 JK |
2531 | /* |
2532 | * If filesystem is not mounted as read-only then | |
2533 | * do start the gc_thread. | |
2534 | */ | |
6c029932 | 2535 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2536 | /* After POR, we can run background GC thread.*/ |
2537 | err = start_gc_thread(sbi); | |
2538 | if (err) | |
4b2414d0 | 2539 | goto free_meta; |
6437d1b0 | 2540 | } |
dabc4a5c | 2541 | kfree(options); |
da554e48 | 2542 | |
2543 | /* recover broken superblock */ | |
f2353d7b | 2544 | if (recovery) { |
41214b3c CY |
2545 | err = f2fs_commit_super(sbi, true); |
2546 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2547 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2548 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2549 | } |
2550 | ||
1200abb2 JK |
2551 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2552 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2553 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2554 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2555 | return 0; |
6437d1b0 | 2556 | |
4b2414d0 | 2557 | free_meta: |
0f18b462 | 2558 | f2fs_sync_inode_meta(sbi); |
4b2414d0 CY |
2559 | /* |
2560 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2561 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2562 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2563 | * falls into an infinite loop in sync_meta_pages(). | |
2564 | */ | |
2565 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
2566 | free_sysfs: | |
dc6b2055 | 2567 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2568 | free_root_inode: |
2569 | dput(sb->s_root); | |
2570 | sb->s_root = NULL; | |
2571 | free_node_inode: | |
bb5dada7 | 2572 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
2658e50d | 2573 | mutex_lock(&sbi->umount_mutex); |
d41065e2 | 2574 | release_ino_entry(sbi, true); |
2658e50d | 2575 | f2fs_leave_shrinker(sbi); |
aff063e2 | 2576 | iput(sbi->node_inode); |
2658e50d | 2577 | mutex_unlock(&sbi->umount_mutex); |
aa51d08a | 2578 | f2fs_destroy_stats(sbi); |
aff063e2 JK |
2579 | free_nm: |
2580 | destroy_node_manager(sbi); | |
2581 | free_sm: | |
2582 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2583 | free_devices: |
2584 | destroy_device_list(sbi); | |
aff063e2 JK |
2585 | kfree(sbi->ckpt); |
2586 | free_meta_inode: | |
2587 | make_bad_inode(sbi->meta_inode); | |
2588 | iput(sbi->meta_inode); | |
0a595eba JK |
2589 | free_io_dummy: |
2590 | mempool_destroy(sbi->write_io_dummy); | |
dabc4a5c | 2591 | free_options: |
a912b54d JK |
2592 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2593 | kfree(sbi->write_io[i]); | |
523be8a6 | 2594 | destroy_percpu_info(sbi); |
4b2414d0 CY |
2595 | #ifdef CONFIG_QUOTA |
2596 | for (i = 0; i < MAXQUOTAS; i++) | |
2597 | kfree(sbi->s_qf_names[i]); | |
2598 | #endif | |
dabc4a5c | 2599 | kfree(options); |
aff063e2 | 2600 | free_sb_buf: |
b39f0de2 | 2601 | kfree(raw_super); |
aff063e2 | 2602 | free_sbi: |
43b6573b KM |
2603 | if (sbi->s_chksum_driver) |
2604 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2605 | kfree(sbi); |
ed2e621a JK |
2606 | |
2607 | /* give only one another chance */ | |
2608 | if (retry) { | |
9df47ba7 | 2609 | retry = false; |
ed2e621a JK |
2610 | shrink_dcache_sb(sb); |
2611 | goto try_onemore; | |
2612 | } | |
aff063e2 JK |
2613 | return err; |
2614 | } | |
2615 | ||
2616 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2617 | const char *dev_name, void *data) | |
2618 | { | |
2619 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2620 | } | |
2621 | ||
30a5537f JK |
2622 | static void kill_f2fs_super(struct super_block *sb) |
2623 | { | |
cce13252 | 2624 | if (sb->s_root) { |
caf0047e | 2625 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2626 | stop_gc_thread(F2FS_SB(sb)); |
2627 | stop_discard_thread(F2FS_SB(sb)); | |
2628 | } | |
30a5537f JK |
2629 | kill_block_super(sb); |
2630 | } | |
2631 | ||
aff063e2 JK |
2632 | static struct file_system_type f2fs_fs_type = { |
2633 | .owner = THIS_MODULE, | |
2634 | .name = "f2fs", | |
2635 | .mount = f2fs_mount, | |
30a5537f | 2636 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2637 | .fs_flags = FS_REQUIRES_DEV, |
2638 | }; | |
7f78e035 | 2639 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2640 | |
6e6093a8 | 2641 | static int __init init_inodecache(void) |
aff063e2 | 2642 | { |
5d097056 VD |
2643 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2644 | sizeof(struct f2fs_inode_info), 0, | |
2645 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2646 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2647 | return -ENOMEM; |
2648 | return 0; | |
2649 | } | |
2650 | ||
2651 | static void destroy_inodecache(void) | |
2652 | { | |
2653 | /* | |
2654 | * Make sure all delayed rcu free inodes are flushed before we | |
2655 | * destroy cache. | |
2656 | */ | |
2657 | rcu_barrier(); | |
2658 | kmem_cache_destroy(f2fs_inode_cachep); | |
2659 | } | |
2660 | ||
2661 | static int __init init_f2fs_fs(void) | |
2662 | { | |
2663 | int err; | |
2664 | ||
c0508650 JK |
2665 | f2fs_build_trace_ios(); |
2666 | ||
aff063e2 JK |
2667 | err = init_inodecache(); |
2668 | if (err) | |
2669 | goto fail; | |
2670 | err = create_node_manager_caches(); | |
2671 | if (err) | |
9890ff3f | 2672 | goto free_inodecache; |
7fd9e544 | 2673 | err = create_segment_manager_caches(); |
aff063e2 | 2674 | if (err) |
9890ff3f | 2675 | goto free_node_manager_caches; |
aff063e2 JK |
2676 | err = create_checkpoint_caches(); |
2677 | if (err) | |
06292073 | 2678 | goto free_segment_manager_caches; |
1dcc336b CY |
2679 | err = create_extent_cache(); |
2680 | if (err) | |
2681 | goto free_checkpoint_caches; | |
dc6b2055 | 2682 | err = f2fs_init_sysfs(); |
a398101a | 2683 | if (err) |
1dcc336b | 2684 | goto free_extent_cache; |
2658e50d | 2685 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 2686 | if (err) |
a398101a | 2687 | goto free_sysfs; |
2658e50d JK |
2688 | err = register_filesystem(&f2fs_fs_type); |
2689 | if (err) | |
2690 | goto free_shrinker; | |
787c7b8c CY |
2691 | err = f2fs_create_root_stats(); |
2692 | if (err) | |
2693 | goto free_filesystem; | |
9890ff3f ZH |
2694 | return 0; |
2695 | ||
787c7b8c CY |
2696 | free_filesystem: |
2697 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
2698 | free_shrinker: |
2699 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 2700 | free_sysfs: |
dc6b2055 | 2701 | f2fs_exit_sysfs(); |
1dcc336b CY |
2702 | free_extent_cache: |
2703 | destroy_extent_cache(); | |
9890ff3f ZH |
2704 | free_checkpoint_caches: |
2705 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
2706 | free_segment_manager_caches: |
2707 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
2708 | free_node_manager_caches: |
2709 | destroy_node_manager_caches(); | |
2710 | free_inodecache: | |
2711 | destroy_inodecache(); | |
aff063e2 JK |
2712 | fail: |
2713 | return err; | |
2714 | } | |
2715 | ||
2716 | static void __exit exit_f2fs_fs(void) | |
2717 | { | |
4589d25d | 2718 | f2fs_destroy_root_stats(); |
aff063e2 | 2719 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 2720 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 2721 | f2fs_exit_sysfs(); |
fdf6c8be | 2722 | destroy_extent_cache(); |
aff063e2 | 2723 | destroy_checkpoint_caches(); |
5dcd8a71 | 2724 | destroy_segment_manager_caches(); |
aff063e2 JK |
2725 | destroy_node_manager_caches(); |
2726 | destroy_inodecache(); | |
351f4fba | 2727 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
2728 | } |
2729 | ||
2730 | module_init(init_f2fs_fs) | |
2731 | module_exit(exit_f2fs_fs) | |
2732 | ||
2733 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
2734 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
2735 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 2736 |