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0a8165d7 | 1 | /* |
aff063e2 JK |
2 | * fs/f2fs/super.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/statfs.h> | |
aff063e2 JK |
15 | #include <linux/buffer_head.h> |
16 | #include <linux/backing-dev.h> | |
17 | #include <linux/kthread.h> | |
18 | #include <linux/parser.h> | |
19 | #include <linux/mount.h> | |
20 | #include <linux/seq_file.h> | |
5e176d54 | 21 | #include <linux/proc_fs.h> |
aff063e2 JK |
22 | #include <linux/random.h> |
23 | #include <linux/exportfs.h> | |
d3ee456d | 24 | #include <linux/blkdev.h> |
0abd675e | 25 | #include <linux/quotaops.h> |
aff063e2 | 26 | #include <linux/f2fs_fs.h> |
b59d0bae | 27 | #include <linux/sysfs.h> |
4b2414d0 | 28 | #include <linux/quota.h> |
aff063e2 JK |
29 | |
30 | #include "f2fs.h" | |
31 | #include "node.h" | |
5ec4e49f | 32 | #include "segment.h" |
aff063e2 | 33 | #include "xattr.h" |
b59d0bae | 34 | #include "gc.h" |
db9f7c1a | 35 | #include "trace.h" |
aff063e2 | 36 | |
a2a4a7e4 NJ |
37 | #define CREATE_TRACE_POINTS |
38 | #include <trace/events/f2fs.h> | |
39 | ||
aff063e2 JK |
40 | static struct kmem_cache *f2fs_inode_cachep; |
41 | ||
73faec4d | 42 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2c63fead JK |
43 | |
44 | char *fault_name[FAULT_MAX] = { | |
45 | [FAULT_KMALLOC] = "kmalloc", | |
c41f3cc3 | 46 | [FAULT_PAGE_ALLOC] = "page alloc", |
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); |
27161f13 | 633 | init_rwsem(&fi->i_xattr_sem); |
aff063e2 | 634 | |
0abd675e CY |
635 | #ifdef CONFIG_QUOTA |
636 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
637 | fi->i_reserved_quota = 0; | |
638 | #endif | |
ab9fa662 JK |
639 | /* Will be used by directory only */ |
640 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 641 | |
aff063e2 JK |
642 | return &fi->vfs_inode; |
643 | } | |
644 | ||
531ad7d5 JK |
645 | static int f2fs_drop_inode(struct inode *inode) |
646 | { | |
b8d96a30 | 647 | int ret; |
531ad7d5 JK |
648 | /* |
649 | * This is to avoid a deadlock condition like below. | |
650 | * writeback_single_inode(inode) | |
651 | * - f2fs_write_data_page | |
652 | * - f2fs_gc -> iput -> evict | |
653 | * - inode_wait_for_writeback(inode) | |
654 | */ | |
0f18b462 | 655 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 656 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
657 | /* to avoid evict_inode call simultaneously */ |
658 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
659 | spin_unlock(&inode->i_lock); |
660 | ||
661 | /* some remained atomic pages should discarded */ | |
662 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 663 | drop_inmem_pages(inode); |
06e1bc05 | 664 | |
3e72f721 JK |
665 | /* should remain fi->extent_tree for writepage */ |
666 | f2fs_destroy_extent_node(inode); | |
667 | ||
06e1bc05 | 668 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 669 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
670 | |
671 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 672 | f2fs_truncate(inode); |
06e1bc05 JK |
673 | |
674 | sb_end_intwrite(inode->i_sb); | |
675 | ||
0b81d077 | 676 | fscrypt_put_encryption_info(inode, NULL); |
06e1bc05 | 677 | spin_lock(&inode->i_lock); |
3e72f721 | 678 | atomic_dec(&inode->i_count); |
06e1bc05 | 679 | } |
b8d96a30 | 680 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 681 | return 0; |
06e1bc05 | 682 | } |
b8d96a30 HP |
683 | ret = generic_drop_inode(inode); |
684 | trace_f2fs_drop_inode(inode, ret); | |
685 | return ret; | |
531ad7d5 JK |
686 | } |
687 | ||
7c45729a | 688 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 689 | { |
0f18b462 | 690 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 691 | int ret = 0; |
0f18b462 | 692 | |
0f18b462 JK |
693 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
694 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
695 | ret = 1; |
696 | } else { | |
697 | set_inode_flag(inode, FI_DIRTY_INODE); | |
698 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 699 | } |
7c45729a JK |
700 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
701 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 702 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
703 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
704 | } | |
338bbfa0 | 705 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 706 | return ret; |
0f18b462 JK |
707 | } |
708 | ||
709 | void f2fs_inode_synced(struct inode *inode) | |
710 | { | |
711 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
712 | ||
713 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
714 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
715 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
716 | return; | |
717 | } | |
7c45729a JK |
718 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
719 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
720 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
721 | } | |
0f18b462 | 722 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 723 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 724 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 725 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
726 | } |
727 | ||
b56ab837 JK |
728 | /* |
729 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
730 | * | |
731 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
732 | */ | |
733 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
734 | { | |
735 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
736 | ||
737 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
738 | inode->i_ino == F2FS_META_INO(sbi)) | |
739 | return; | |
740 | ||
741 | if (flags == I_DIRTY_TIME) | |
742 | return; | |
743 | ||
744 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
745 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
746 | ||
7c45729a | 747 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
748 | } |
749 | ||
aff063e2 JK |
750 | static void f2fs_i_callback(struct rcu_head *head) |
751 | { | |
752 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
753 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
754 | } | |
755 | ||
25ca923b | 756 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
757 | { |
758 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
759 | } | |
760 | ||
523be8a6 JK |
761 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
762 | { | |
41382ec4 | 763 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 764 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
765 | } |
766 | ||
3c62be17 JK |
767 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
768 | { | |
769 | int i; | |
770 | ||
771 | for (i = 0; i < sbi->s_ndevs; i++) { | |
772 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
773 | #ifdef CONFIG_BLK_DEV_ZONED | |
774 | kfree(FDEV(i).blkz_type); | |
775 | #endif | |
776 | } | |
777 | kfree(sbi->devs); | |
778 | } | |
779 | ||
aff063e2 JK |
780 | static void f2fs_put_super(struct super_block *sb) |
781 | { | |
782 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 783 | int i; |
cf5c759f | 784 | bool dropped; |
aff063e2 | 785 | |
0abd675e | 786 | f2fs_quota_off_umount(sb); |
aff063e2 | 787 | |
2658e50d JK |
788 | /* prevent remaining shrinker jobs */ |
789 | mutex_lock(&sbi->umount_mutex); | |
790 | ||
85dc2f2c JK |
791 | /* |
792 | * We don't need to do checkpoint when superblock is clean. | |
793 | * But, the previous checkpoint was not done by umount, it needs to do | |
794 | * clean checkpoint again. | |
795 | */ | |
caf0047e | 796 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 797 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
798 | struct cp_control cpc = { |
799 | .reason = CP_UMOUNT, | |
800 | }; | |
801 | write_checkpoint(sbi, &cpc); | |
802 | } | |
aff063e2 | 803 | |
4e6a8d9b | 804 | /* be sure to wait for any on-going discard commands */ |
cf5c759f | 805 | dropped = f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 806 | |
cf5c759f | 807 | if (f2fs_discard_en(sbi) && !sbi->discard_blks && !dropped) { |
1f43e2ad CY |
808 | struct cp_control cpc = { |
809 | .reason = CP_UMOUNT | CP_TRIMMED, | |
810 | }; | |
811 | write_checkpoint(sbi, &cpc); | |
812 | } | |
813 | ||
eca616f8 JK |
814 | /* write_checkpoint can update stat informaion */ |
815 | f2fs_destroy_stats(sbi); | |
816 | ||
cf779cab JK |
817 | /* |
818 | * normally superblock is clean, so we need to release this. | |
819 | * In addition, EIO will skip do checkpoint, we need this as well. | |
820 | */ | |
74ef9241 | 821 | release_ino_entry(sbi, true); |
6f12ac25 | 822 | |
2658e50d JK |
823 | f2fs_leave_shrinker(sbi); |
824 | mutex_unlock(&sbi->umount_mutex); | |
825 | ||
17c19120 | 826 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 827 | f2fs_flush_merged_writes(sbi); |
17c19120 | 828 | |
aff063e2 JK |
829 | iput(sbi->node_inode); |
830 | iput(sbi->meta_inode); | |
831 | ||
832 | /* destroy f2fs internal modules */ | |
833 | destroy_node_manager(sbi); | |
834 | destroy_segment_manager(sbi); | |
835 | ||
836 | kfree(sbi->ckpt); | |
a398101a | 837 | |
dc6b2055 | 838 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
839 | |
840 | sb->s_fs_info = NULL; | |
43b6573b KM |
841 | if (sbi->s_chksum_driver) |
842 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 843 | kfree(sbi->raw_super); |
523be8a6 | 844 | |
3c62be17 | 845 | destroy_device_list(sbi); |
b6895e8f | 846 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
847 | #ifdef CONFIG_QUOTA |
848 | for (i = 0; i < MAXQUOTAS; i++) | |
849 | kfree(sbi->s_qf_names[i]); | |
850 | #endif | |
523be8a6 | 851 | destroy_percpu_info(sbi); |
a912b54d JK |
852 | for (i = 0; i < NR_PAGE_TYPE; i++) |
853 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
854 | kfree(sbi); |
855 | } | |
856 | ||
857 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
858 | { | |
859 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 860 | int err = 0; |
aff063e2 | 861 | |
a2a4a7e4 NJ |
862 | trace_f2fs_sync_fs(sb, sync); |
863 | ||
4b2414d0 CY |
864 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
865 | return -EAGAIN; | |
866 | ||
b7473754 | 867 | if (sync) { |
d5053a34 JK |
868 | struct cp_control cpc; |
869 | ||
119ee914 JK |
870 | cpc.reason = __get_cp_reason(sbi); |
871 | ||
b7473754 | 872 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 873 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 874 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 875 | } |
05ca3632 | 876 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 877 | |
c34f42e2 | 878 | return err; |
aff063e2 JK |
879 | } |
880 | ||
d6212a5f CL |
881 | static int f2fs_freeze(struct super_block *sb) |
882 | { | |
77888c1e | 883 | if (f2fs_readonly(sb)) |
d6212a5f CL |
884 | return 0; |
885 | ||
b4b9d34c JK |
886 | /* IO error happened before */ |
887 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
888 | return -EIO; | |
889 | ||
890 | /* must be clean, since sync_filesystem() was already called */ | |
891 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
892 | return -EINVAL; | |
893 | return 0; | |
d6212a5f CL |
894 | } |
895 | ||
896 | static int f2fs_unfreeze(struct super_block *sb) | |
897 | { | |
898 | return 0; | |
899 | } | |
900 | ||
ddc34e32 CY |
901 | #ifdef CONFIG_QUOTA |
902 | static int f2fs_statfs_project(struct super_block *sb, | |
903 | kprojid_t projid, struct kstatfs *buf) | |
904 | { | |
905 | struct kqid qid; | |
906 | struct dquot *dquot; | |
907 | u64 limit; | |
908 | u64 curblock; | |
909 | ||
910 | qid = make_kqid_projid(projid); | |
911 | dquot = dqget(sb, qid); | |
912 | if (IS_ERR(dquot)) | |
913 | return PTR_ERR(dquot); | |
914 | spin_lock(&dq_data_lock); | |
915 | ||
916 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
917 | dquot->dq_dqb.dqb_bsoftlimit : | |
918 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
919 | if (limit && buf->f_blocks > limit) { | |
920 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
921 | buf->f_blocks = limit; | |
922 | buf->f_bfree = buf->f_bavail = | |
923 | (buf->f_blocks > curblock) ? | |
924 | (buf->f_blocks - curblock) : 0; | |
925 | } | |
926 | ||
927 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
928 | dquot->dq_dqb.dqb_isoftlimit : | |
929 | dquot->dq_dqb.dqb_ihardlimit; | |
930 | if (limit && buf->f_files > limit) { | |
931 | buf->f_files = limit; | |
932 | buf->f_ffree = | |
933 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
934 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
935 | } | |
936 | ||
937 | spin_unlock(&dq_data_lock); | |
938 | dqput(dquot); | |
939 | return 0; | |
940 | } | |
941 | #endif | |
942 | ||
aff063e2 JK |
943 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
944 | { | |
945 | struct super_block *sb = dentry->d_sb; | |
946 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
947 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
948 | block_t total_count, user_block_count, start_count, ovp_count; | |
0cc091d0 | 949 | u64 avail_node_count; |
aff063e2 JK |
950 | |
951 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
952 | user_block_count = sbi->user_block_count; | |
953 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
954 | ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; | |
955 | buf->f_type = F2FS_SUPER_MAGIC; | |
956 | buf->f_bsize = sbi->blocksize; | |
957 | ||
958 | buf->f_blocks = total_count - start_count; | |
3e6d0b4d | 959 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; |
daeb433e CY |
960 | buf->f_bavail = user_block_count - valid_user_blocks(sbi) - |
961 | sbi->reserved_blocks; | |
aff063e2 | 962 | |
0cc091d0 JK |
963 | avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
964 | ||
965 | if (avail_node_count > user_block_count) { | |
966 | buf->f_files = user_block_count; | |
967 | buf->f_ffree = buf->f_bavail; | |
968 | } else { | |
969 | buf->f_files = avail_node_count; | |
970 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
971 | buf->f_bavail); | |
972 | } | |
aff063e2 | 973 | |
5a20d339 | 974 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
975 | buf->f_fsid.val[0] = (u32)id; |
976 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
977 | ||
ddc34e32 CY |
978 | #ifdef CONFIG_QUOTA |
979 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
980 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
981 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
982 | } | |
983 | #endif | |
aff063e2 JK |
984 | return 0; |
985 | } | |
986 | ||
4b2414d0 CY |
987 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
988 | struct super_block *sb) | |
989 | { | |
990 | #ifdef CONFIG_QUOTA | |
991 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
992 | ||
993 | if (sbi->s_jquota_fmt) { | |
994 | char *fmtname = ""; | |
995 | ||
996 | switch (sbi->s_jquota_fmt) { | |
997 | case QFMT_VFS_OLD: | |
998 | fmtname = "vfsold"; | |
999 | break; | |
1000 | case QFMT_VFS_V0: | |
1001 | fmtname = "vfsv0"; | |
1002 | break; | |
1003 | case QFMT_VFS_V1: | |
1004 | fmtname = "vfsv1"; | |
1005 | break; | |
1006 | } | |
1007 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1008 | } | |
1009 | ||
1010 | if (sbi->s_qf_names[USRQUOTA]) | |
1011 | seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]); | |
1012 | ||
1013 | if (sbi->s_qf_names[GRPQUOTA]) | |
1014 | seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]); | |
1015 | ||
1016 | if (sbi->s_qf_names[PRJQUOTA]) | |
1017 | seq_show_option(seq, "prjjquota", sbi->s_qf_names[PRJQUOTA]); | |
1018 | #endif | |
1019 | } | |
1020 | ||
aff063e2 JK |
1021 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1022 | { | |
1023 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1024 | ||
6aefd93b JK |
1025 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1026 | if (test_opt(sbi, FORCE_FG_GC)) | |
1027 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1028 | else | |
1029 | seq_printf(seq, ",background_gc=%s", "on"); | |
1030 | } else { | |
696c018c | 1031 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1032 | } |
aff063e2 JK |
1033 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1034 | seq_puts(seq, ",disable_roll_forward"); | |
1035 | if (test_opt(sbi, DISCARD)) | |
1036 | seq_puts(seq, ",discard"); | |
1037 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1038 | seq_puts(seq, ",no_heap"); |
1039 | else | |
1040 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1041 | #ifdef CONFIG_F2FS_FS_XATTR |
1042 | if (test_opt(sbi, XATTR_USER)) | |
1043 | seq_puts(seq, ",user_xattr"); | |
1044 | else | |
1045 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1046 | if (test_opt(sbi, INLINE_XATTR)) |
1047 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1048 | else |
1049 | seq_puts(seq, ",noinline_xattr"); | |
aff063e2 JK |
1050 | #endif |
1051 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1052 | if (test_opt(sbi, POSIX_ACL)) | |
1053 | seq_puts(seq, ",acl"); | |
1054 | else | |
1055 | seq_puts(seq, ",noacl"); | |
1056 | #endif | |
1057 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1058 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1059 | if (test_opt(sbi, INLINE_DATA)) |
1060 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1061 | else |
1062 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1063 | if (test_opt(sbi, INLINE_DENTRY)) |
1064 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1065 | else |
1066 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1067 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1068 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1069 | if (test_opt(sbi, NOBARRIER)) |
1070 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1071 | if (test_opt(sbi, FASTBOOT)) |
1072 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1073 | if (test_opt(sbi, EXTENT_CACHE)) |
1074 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1075 | else |
1076 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1077 | if (test_opt(sbi, DATA_FLUSH)) |
1078 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1079 | |
1080 | seq_puts(seq, ",mode="); | |
1081 | if (test_opt(sbi, ADAPTIVE)) | |
1082 | seq_puts(seq, "adaptive"); | |
1083 | else if (test_opt(sbi, LFS)) | |
1084 | seq_puts(seq, "lfs"); | |
aff063e2 | 1085 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
ec91538d JK |
1086 | if (F2FS_IO_SIZE_BITS(sbi)) |
1087 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
1088 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1089 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
1090 | seq_printf(seq, ",fault_injection=%u", |
1091 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 1092 | #endif |
0abd675e | 1093 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1094 | if (test_opt(sbi, QUOTA)) |
1095 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1096 | if (test_opt(sbi, USRQUOTA)) |
1097 | seq_puts(seq, ",usrquota"); | |
1098 | if (test_opt(sbi, GRPQUOTA)) | |
1099 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1100 | if (test_opt(sbi, PRJQUOTA)) |
1101 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1102 | #endif |
4b2414d0 | 1103 | f2fs_show_quota_options(seq, sbi->sb); |
aff063e2 JK |
1104 | |
1105 | return 0; | |
1106 | } | |
1107 | ||
498c5e9f YH |
1108 | static void default_options(struct f2fs_sb_info *sbi) |
1109 | { | |
1110 | /* init some FS parameters */ | |
1111 | sbi->active_logs = NR_CURSEG_TYPE; | |
1112 | ||
1113 | set_opt(sbi, BG_GC); | |
39133a50 | 1114 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1115 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1116 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1117 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1118 | set_opt(sbi, NOHEAP); |
6d94c74a | 1119 | sbi->sb->s_flags |= MS_LAZYTIME; |
69e9e427 | 1120 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 1121 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
1122 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1123 | set_opt(sbi, DISCARD); | |
1124 | } else { | |
1125 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
1126 | } | |
498c5e9f YH |
1127 | |
1128 | #ifdef CONFIG_F2FS_FS_XATTR | |
1129 | set_opt(sbi, XATTR_USER); | |
1130 | #endif | |
1131 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1132 | set_opt(sbi, POSIX_ACL); | |
1133 | #endif | |
36dbd328 CY |
1134 | |
1135 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1136 | f2fs_build_fault_attr(sbi, 0); | |
1137 | #endif | |
498c5e9f YH |
1138 | } |
1139 | ||
696c018c NJ |
1140 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1141 | { | |
1142 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1143 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1144 | unsigned long old_sb_flags; |
696c018c | 1145 | int err, active_logs; |
876dc59e GZ |
1146 | bool need_restart_gc = false; |
1147 | bool need_stop_gc = false; | |
9cd81ce3 | 1148 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
2443b8b3 CY |
1149 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1150 | struct f2fs_fault_info ffi = sbi->fault_info; | |
1151 | #endif | |
4b2414d0 CY |
1152 | #ifdef CONFIG_QUOTA |
1153 | int s_jquota_fmt; | |
1154 | char *s_qf_names[MAXQUOTAS]; | |
1155 | int i, j; | |
1156 | #endif | |
696c018c NJ |
1157 | |
1158 | /* | |
1159 | * Save the old mount options in case we | |
1160 | * need to restore them. | |
1161 | */ | |
1162 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1163 | old_sb_flags = sb->s_flags; |
696c018c NJ |
1164 | active_logs = sbi->active_logs; |
1165 | ||
4b2414d0 CY |
1166 | #ifdef CONFIG_QUOTA |
1167 | s_jquota_fmt = sbi->s_jquota_fmt; | |
1168 | for (i = 0; i < MAXQUOTAS; i++) { | |
1169 | if (sbi->s_qf_names[i]) { | |
1170 | s_qf_names[i] = kstrdup(sbi->s_qf_names[i], | |
1171 | GFP_KERNEL); | |
1172 | if (!s_qf_names[i]) { | |
1173 | for (j = 0; j < i; j++) | |
1174 | kfree(s_qf_names[j]); | |
1175 | return -ENOMEM; | |
1176 | } | |
1177 | } else { | |
1178 | s_qf_names[i] = NULL; | |
1179 | } | |
1180 | } | |
1181 | #endif | |
1182 | ||
df728b0f JK |
1183 | /* recover superblocks we couldn't write due to previous RO mount */ |
1184 | if (!(*flags & MS_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { | |
1185 | err = f2fs_commit_super(sbi, false); | |
1186 | f2fs_msg(sb, KERN_INFO, | |
1187 | "Try to recover all the superblocks, ret: %d", err); | |
1188 | if (!err) | |
1189 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1190 | } | |
1191 | ||
498c5e9f | 1192 | default_options(sbi); |
26666c8a | 1193 | |
696c018c NJ |
1194 | /* parse mount options */ |
1195 | err = parse_options(sb, data); | |
1196 | if (err) | |
1197 | goto restore_opts; | |
1198 | ||
1199 | /* | |
1200 | * Previous and new state of filesystem is RO, | |
876dc59e | 1201 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1202 | */ |
6b2920a5 | 1203 | if (f2fs_readonly(sb) && (*flags & MS_RDONLY)) |
696c018c NJ |
1204 | goto skip; |
1205 | ||
0abd675e CY |
1206 | if (!f2fs_readonly(sb) && (*flags & MS_RDONLY)) { |
1207 | err = dquot_suspend(sb, -1); | |
1208 | if (err < 0) | |
1209 | goto restore_opts; | |
1210 | } else { | |
1211 | /* dquot_resume needs RW */ | |
1212 | sb->s_flags &= ~MS_RDONLY; | |
1213 | dquot_resume(sb, -1); | |
1214 | } | |
1215 | ||
9cd81ce3 CY |
1216 | /* disallow enable/disable extent_cache dynamically */ |
1217 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1218 | err = -EINVAL; | |
1219 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1220 | "switch extent_cache option is not allowed"); | |
1221 | goto restore_opts; | |
1222 | } | |
1223 | ||
696c018c NJ |
1224 | /* |
1225 | * We stop the GC thread if FS is mounted as RO | |
1226 | * or if background_gc = off is passed in mount | |
1227 | * option. Also sync the filesystem. | |
1228 | */ | |
1229 | if ((*flags & MS_RDONLY) || !test_opt(sbi, BG_GC)) { | |
1230 | if (sbi->gc_thread) { | |
1231 | stop_gc_thread(sbi); | |
876dc59e | 1232 | need_restart_gc = true; |
696c018c | 1233 | } |
aba291b3 | 1234 | } else if (!sbi->gc_thread) { |
696c018c NJ |
1235 | err = start_gc_thread(sbi); |
1236 | if (err) | |
1237 | goto restore_opts; | |
876dc59e GZ |
1238 | need_stop_gc = true; |
1239 | } | |
1240 | ||
faa0e55b JK |
1241 | if (*flags & MS_RDONLY) { |
1242 | writeback_inodes_sb(sb, WB_REASON_SYNC); | |
1243 | sync_inodes_sb(sb); | |
1244 | ||
1245 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1246 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1247 | f2fs_sync_fs(sb, 1); | |
1248 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1249 | } | |
1250 | ||
876dc59e GZ |
1251 | /* |
1252 | * We stop issue flush thread if FS is mounted as RO | |
1253 | * or if flush_merge is not passed in mount option. | |
1254 | */ | |
1255 | if ((*flags & MS_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { | |
5eba8c5d JK |
1256 | clear_opt(sbi, FLUSH_MERGE); |
1257 | destroy_flush_cmd_control(sbi, false); | |
1258 | } else { | |
2163d198 GZ |
1259 | err = create_flush_cmd_control(sbi); |
1260 | if (err) | |
a688b9d9 | 1261 | goto restore_gc; |
696c018c NJ |
1262 | } |
1263 | skip: | |
4b2414d0 CY |
1264 | #ifdef CONFIG_QUOTA |
1265 | /* Release old quota file names */ | |
1266 | for (i = 0; i < MAXQUOTAS; i++) | |
1267 | kfree(s_qf_names[i]); | |
1268 | #endif | |
696c018c | 1269 | /* Update the POSIXACL Flag */ |
df728b0f | 1270 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
696c018c | 1271 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); |
df728b0f | 1272 | |
696c018c | 1273 | return 0; |
876dc59e GZ |
1274 | restore_gc: |
1275 | if (need_restart_gc) { | |
1276 | if (start_gc_thread(sbi)) | |
1277 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1278 | "background gc thread has stopped"); |
876dc59e GZ |
1279 | } else if (need_stop_gc) { |
1280 | stop_gc_thread(sbi); | |
1281 | } | |
696c018c | 1282 | restore_opts: |
4b2414d0 CY |
1283 | #ifdef CONFIG_QUOTA |
1284 | sbi->s_jquota_fmt = s_jquota_fmt; | |
1285 | for (i = 0; i < MAXQUOTAS; i++) { | |
1286 | kfree(sbi->s_qf_names[i]); | |
1287 | sbi->s_qf_names[i] = s_qf_names[i]; | |
1288 | } | |
1289 | #endif | |
696c018c NJ |
1290 | sbi->mount_opt = org_mount_opt; |
1291 | sbi->active_logs = active_logs; | |
0abd675e | 1292 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1293 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1294 | sbi->fault_info = ffi; | |
1295 | #endif | |
696c018c NJ |
1296 | return err; |
1297 | } | |
1298 | ||
0abd675e CY |
1299 | #ifdef CONFIG_QUOTA |
1300 | /* Read data from quotafile */ | |
1301 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1302 | size_t len, loff_t off) | |
1303 | { | |
1304 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1305 | struct address_space *mapping = inode->i_mapping; | |
1306 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1307 | int offset = off & (sb->s_blocksize - 1); | |
1308 | int tocopy; | |
1309 | size_t toread; | |
1310 | loff_t i_size = i_size_read(inode); | |
1311 | struct page *page; | |
1312 | char *kaddr; | |
1313 | ||
1314 | if (off > i_size) | |
1315 | return 0; | |
1316 | ||
1317 | if (off + len > i_size) | |
1318 | len = i_size - off; | |
1319 | toread = len; | |
1320 | while (toread > 0) { | |
1321 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1322 | repeat: | |
1323 | page = read_mapping_page(mapping, blkidx, NULL); | |
1324 | if (IS_ERR(page)) | |
1325 | return PTR_ERR(page); | |
1326 | ||
1327 | lock_page(page); | |
1328 | ||
1329 | if (unlikely(page->mapping != mapping)) { | |
1330 | f2fs_put_page(page, 1); | |
1331 | goto repeat; | |
1332 | } | |
1333 | if (unlikely(!PageUptodate(page))) { | |
1334 | f2fs_put_page(page, 1); | |
1335 | return -EIO; | |
1336 | } | |
1337 | ||
1338 | kaddr = kmap_atomic(page); | |
1339 | memcpy(data, kaddr + offset, tocopy); | |
1340 | kunmap_atomic(kaddr); | |
1341 | f2fs_put_page(page, 1); | |
1342 | ||
1343 | offset = 0; | |
1344 | toread -= tocopy; | |
1345 | data += tocopy; | |
1346 | blkidx++; | |
1347 | } | |
1348 | return len; | |
1349 | } | |
1350 | ||
1351 | /* Write to quotafile */ | |
1352 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1353 | const char *data, size_t len, loff_t off) | |
1354 | { | |
1355 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1356 | struct address_space *mapping = inode->i_mapping; | |
1357 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1358 | int offset = off & (sb->s_blocksize - 1); | |
1359 | size_t towrite = len; | |
1360 | struct page *page; | |
1361 | char *kaddr; | |
1362 | int err = 0; | |
1363 | int tocopy; | |
1364 | ||
1365 | while (towrite > 0) { | |
1366 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1367 | towrite); | |
1368 | ||
1369 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, | |
1370 | &page, NULL); | |
1371 | if (unlikely(err)) | |
1372 | break; | |
1373 | ||
1374 | kaddr = kmap_atomic(page); | |
1375 | memcpy(kaddr + offset, data, tocopy); | |
1376 | kunmap_atomic(kaddr); | |
1377 | flush_dcache_page(page); | |
1378 | ||
1379 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1380 | page, NULL); | |
1381 | offset = 0; | |
1382 | towrite -= tocopy; | |
1383 | off += tocopy; | |
1384 | data += tocopy; | |
1385 | cond_resched(); | |
1386 | } | |
1387 | ||
1388 | if (len == towrite) | |
4f31d26b | 1389 | return 0; |
0abd675e CY |
1390 | inode->i_version++; |
1391 | inode->i_mtime = inode->i_ctime = current_time(inode); | |
1392 | f2fs_mark_inode_dirty_sync(inode, false); | |
1393 | return len - towrite; | |
1394 | } | |
1395 | ||
1396 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1397 | { | |
1398 | return F2FS_I(inode)->i_dquot; | |
1399 | } | |
1400 | ||
1401 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1402 | { | |
1403 | return &F2FS_I(inode)->i_reserved_quota; | |
1404 | } | |
1405 | ||
4b2414d0 CY |
1406 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1407 | { | |
1408 | return dquot_quota_on_mount(sbi->sb, sbi->s_qf_names[type], | |
1409 | sbi->s_jquota_fmt, type); | |
1410 | } | |
1411 | ||
1412 | void f2fs_enable_quota_files(struct f2fs_sb_info *sbi) | |
1413 | { | |
1414 | int i, ret; | |
1415 | ||
1416 | for (i = 0; i < MAXQUOTAS; i++) { | |
1417 | if (sbi->s_qf_names[i]) { | |
1418 | ret = f2fs_quota_on_mount(sbi, i); | |
1419 | if (ret < 0) | |
1420 | f2fs_msg(sbi->sb, KERN_ERR, | |
1421 | "Cannot turn on journaled " | |
1422 | "quota: error %d", ret); | |
1423 | } | |
1424 | } | |
1425 | } | |
1426 | ||
0abd675e CY |
1427 | static int f2fs_quota_sync(struct super_block *sb, int type) |
1428 | { | |
1429 | struct quota_info *dqopt = sb_dqopt(sb); | |
1430 | int cnt; | |
1431 | int ret; | |
1432 | ||
1433 | ret = dquot_writeback_dquots(sb, type); | |
1434 | if (ret) | |
1435 | return ret; | |
1436 | ||
1437 | /* | |
1438 | * Now when everything is written we can discard the pagecache so | |
1439 | * that userspace sees the changes. | |
1440 | */ | |
1441 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1442 | if (type != -1 && cnt != type) | |
1443 | continue; | |
1444 | if (!sb_has_quota_active(sb, cnt)) | |
1445 | continue; | |
1446 | ||
1447 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1448 | if (ret) | |
1449 | return ret; | |
1450 | ||
1451 | inode_lock(dqopt->files[cnt]); | |
1452 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1453 | inode_unlock(dqopt->files[cnt]); | |
1454 | } | |
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1459 | const struct path *path) | |
1460 | { | |
1461 | struct inode *inode; | |
1462 | int err; | |
1463 | ||
9a20d391 | 1464 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1465 | if (err) |
1466 | return err; | |
1467 | ||
1468 | err = dquot_quota_on(sb, type, format_id, path); | |
1469 | if (err) | |
1470 | return err; | |
1471 | ||
1472 | inode = d_inode(path->dentry); | |
1473 | ||
1474 | inode_lock(inode); | |
1475 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1476 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1477 | S_NOATIME | S_IMMUTABLE); | |
1478 | inode_unlock(inode); | |
1479 | f2fs_mark_inode_dirty_sync(inode, false); | |
1480 | ||
1481 | return 0; | |
1482 | } | |
1483 | ||
1484 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1485 | { | |
1486 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1487 | int err; | |
1488 | ||
1489 | if (!inode || !igrab(inode)) | |
1490 | return dquot_quota_off(sb, type); | |
1491 | ||
9a20d391 | 1492 | f2fs_quota_sync(sb, type); |
0abd675e CY |
1493 | |
1494 | err = dquot_quota_off(sb, type); | |
1495 | if (err) | |
1496 | goto out_put; | |
1497 | ||
1498 | inode_lock(inode); | |
1499 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1500 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1501 | inode_unlock(inode); | |
1502 | f2fs_mark_inode_dirty_sync(inode, false); | |
1503 | out_put: | |
1504 | iput(inode); | |
1505 | return err; | |
1506 | } | |
1507 | ||
4b2414d0 | 1508 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1509 | { |
1510 | int type; | |
1511 | ||
1512 | for (type = 0; type < MAXQUOTAS; type++) | |
1513 | f2fs_quota_off(sb, type); | |
1514 | } | |
1515 | ||
5c57132e CY |
1516 | int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
1517 | { | |
1518 | *projid = F2FS_I(inode)->i_projid; | |
1519 | return 0; | |
1520 | } | |
1521 | ||
0abd675e CY |
1522 | static const struct dquot_operations f2fs_quota_operations = { |
1523 | .get_reserved_space = f2fs_get_reserved_space, | |
1524 | .write_dquot = dquot_commit, | |
1525 | .acquire_dquot = dquot_acquire, | |
1526 | .release_dquot = dquot_release, | |
1527 | .mark_dirty = dquot_mark_dquot_dirty, | |
1528 | .write_info = dquot_commit_info, | |
1529 | .alloc_dquot = dquot_alloc, | |
1530 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1531 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1532 | .get_next_id = dquot_get_next_id, |
1533 | }; | |
1534 | ||
1535 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1536 | .quota_on = f2fs_quota_on, | |
1537 | .quota_off = f2fs_quota_off, | |
1538 | .quota_sync = f2fs_quota_sync, | |
1539 | .get_state = dquot_get_state, | |
1540 | .set_info = dquot_set_dqinfo, | |
1541 | .get_dqblk = dquot_get_dqblk, | |
1542 | .set_dqblk = dquot_set_dqblk, | |
1543 | .get_nextdqblk = dquot_get_next_dqblk, | |
1544 | }; | |
1545 | #else | |
4b2414d0 | 1546 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1547 | { |
1548 | } | |
1549 | #endif | |
1550 | ||
f62fc9f9 | 1551 | static const struct super_operations f2fs_sops = { |
aff063e2 | 1552 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 1553 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1554 | .destroy_inode = f2fs_destroy_inode, |
1555 | .write_inode = f2fs_write_inode, | |
b3783873 | 1556 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1557 | .show_options = f2fs_show_options, |
0abd675e CY |
1558 | #ifdef CONFIG_QUOTA |
1559 | .quota_read = f2fs_quota_read, | |
1560 | .quota_write = f2fs_quota_write, | |
1561 | .get_dquots = f2fs_get_dquots, | |
1562 | #endif | |
aff063e2 JK |
1563 | .evict_inode = f2fs_evict_inode, |
1564 | .put_super = f2fs_put_super, | |
1565 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1566 | .freeze_fs = f2fs_freeze, |
1567 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1568 | .statfs = f2fs_statfs, |
696c018c | 1569 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1570 | }; |
1571 | ||
0b81d077 JK |
1572 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1573 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1574 | { | |
1575 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1576 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1577 | ctx, len, NULL); | |
1578 | } | |
1579 | ||
1580 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1581 | void *fs_data) | |
1582 | { | |
1583 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1584 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1585 | ctx, len, fs_data, XATTR_CREATE); | |
1586 | } | |
1587 | ||
1588 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1589 | { | |
1590 | return S_ISLNK(inode->i_mode) ? | |
1591 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1592 | } | |
1593 | ||
6f69f0ed | 1594 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1595 | .key_prefix = "f2fs:", |
0b81d077 JK |
1596 | .get_context = f2fs_get_context, |
1597 | .set_context = f2fs_set_context, | |
1598 | .is_encrypted = f2fs_encrypted_inode, | |
1599 | .empty_dir = f2fs_empty_dir, | |
1600 | .max_namelen = f2fs_max_namelen, | |
1601 | }; | |
1602 | #else | |
6f69f0ed | 1603 | static const struct fscrypt_operations f2fs_cryptops = { |
0b81d077 JK |
1604 | .is_encrypted = f2fs_encrypted_inode, |
1605 | }; | |
1606 | #endif | |
1607 | ||
aff063e2 JK |
1608 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1609 | u64 ino, u32 generation) | |
1610 | { | |
1611 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1612 | struct inode *inode; | |
1613 | ||
d6b7d4b3 | 1614 | if (check_nid_range(sbi, ino)) |
910bb12d | 1615 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1616 | |
1617 | /* | |
1618 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1619 | * However f2fs_iget currently does appropriate checks to handle stale | |
1620 | * inodes so everything is OK. | |
1621 | */ | |
1622 | inode = f2fs_iget(sb, ino); | |
1623 | if (IS_ERR(inode)) | |
1624 | return ERR_CAST(inode); | |
6bacf52f | 1625 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1626 | /* we didn't find the right inode.. */ |
1627 | iput(inode); | |
1628 | return ERR_PTR(-ESTALE); | |
1629 | } | |
1630 | return inode; | |
1631 | } | |
1632 | ||
1633 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1634 | int fh_len, int fh_type) | |
1635 | { | |
1636 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1637 | f2fs_nfs_get_inode); | |
1638 | } | |
1639 | ||
1640 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1641 | int fh_len, int fh_type) | |
1642 | { | |
1643 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1644 | f2fs_nfs_get_inode); | |
1645 | } | |
1646 | ||
1647 | static const struct export_operations f2fs_export_ops = { | |
1648 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1649 | .fh_to_parent = f2fs_fh_to_parent, | |
1650 | .get_parent = f2fs_get_parent, | |
1651 | }; | |
1652 | ||
e0afc4d6 | 1653 | static loff_t max_file_blocks(void) |
aff063e2 | 1654 | { |
7a2af766 | 1655 | loff_t result = 0; |
aff063e2 JK |
1656 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1657 | ||
7a2af766 CY |
1658 | /* |
1659 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
1660 | * F2FS_INLINE_XATTR_ADDRS), but now f2fs try to reserve more | |
1661 | * space in inode.i_addr, it will be more safe to reassign | |
1662 | * result as zero. | |
1663 | */ | |
1664 | ||
aff063e2 JK |
1665 | /* two direct node blocks */ |
1666 | result += (leaf_count * 2); | |
1667 | ||
1668 | /* two indirect node blocks */ | |
1669 | leaf_count *= NIDS_PER_BLOCK; | |
1670 | result += (leaf_count * 2); | |
1671 | ||
1672 | /* one double indirect node block */ | |
1673 | leaf_count *= NIDS_PER_BLOCK; | |
1674 | result += leaf_count; | |
1675 | ||
aff063e2 JK |
1676 | return result; |
1677 | } | |
1678 | ||
fd694733 JK |
1679 | static int __f2fs_commit_super(struct buffer_head *bh, |
1680 | struct f2fs_super_block *super) | |
1681 | { | |
1682 | lock_buffer(bh); | |
1683 | if (super) | |
1684 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
1685 | set_buffer_uptodate(bh); | |
1686 | set_buffer_dirty(bh); | |
1687 | unlock_buffer(bh); | |
1688 | ||
1689 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1690 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1691 | } |
1692 | ||
df728b0f | 1693 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1694 | struct buffer_head *bh) |
9a59b62f | 1695 | { |
fd694733 JK |
1696 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1697 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1698 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1699 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1700 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1701 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1702 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1703 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1704 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1705 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1706 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1707 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1708 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1709 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1710 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1711 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1712 | u64 main_end_blkaddr = main_blkaddr + |
1713 | (segment_count_main << log_blocks_per_seg); | |
1714 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1715 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1716 | |
1717 | if (segment0_blkaddr != cp_blkaddr) { | |
1718 | f2fs_msg(sb, KERN_INFO, | |
1719 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1720 | segment0_blkaddr, cp_blkaddr); | |
1721 | return true; | |
1722 | } | |
1723 | ||
1724 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1725 | sit_blkaddr) { | |
1726 | f2fs_msg(sb, KERN_INFO, | |
1727 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1728 | cp_blkaddr, sit_blkaddr, | |
1729 | segment_count_ckpt << log_blocks_per_seg); | |
1730 | return true; | |
1731 | } | |
1732 | ||
1733 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1734 | nat_blkaddr) { | |
1735 | f2fs_msg(sb, KERN_INFO, | |
1736 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1737 | sit_blkaddr, nat_blkaddr, | |
1738 | segment_count_sit << log_blocks_per_seg); | |
1739 | return true; | |
1740 | } | |
1741 | ||
1742 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1743 | ssa_blkaddr) { | |
1744 | f2fs_msg(sb, KERN_INFO, | |
1745 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1746 | nat_blkaddr, ssa_blkaddr, | |
1747 | segment_count_nat << log_blocks_per_seg); | |
1748 | return true; | |
1749 | } | |
1750 | ||
1751 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
1752 | main_blkaddr) { | |
1753 | f2fs_msg(sb, KERN_INFO, | |
1754 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
1755 | ssa_blkaddr, main_blkaddr, | |
1756 | segment_count_ssa << log_blocks_per_seg); | |
1757 | return true; | |
1758 | } | |
1759 | ||
fd694733 | 1760 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 1761 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 1762 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 1763 | main_blkaddr, |
fd694733 JK |
1764 | segment0_blkaddr + |
1765 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
1766 | segment_count_main << log_blocks_per_seg); |
1767 | return true; | |
fd694733 JK |
1768 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
1769 | int err = 0; | |
1770 | char *res; | |
1771 | ||
1772 | /* fix in-memory information all the time */ | |
1773 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
1774 | segment0_blkaddr) >> log_blocks_per_seg); | |
1775 | ||
1776 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 1777 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
1778 | res = "internally"; |
1779 | } else { | |
1780 | err = __f2fs_commit_super(bh, NULL); | |
1781 | res = err ? "failed" : "done"; | |
1782 | } | |
1783 | f2fs_msg(sb, KERN_INFO, | |
1784 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
1785 | res, main_blkaddr, | |
1786 | segment0_blkaddr + | |
1787 | (segment_count << log_blocks_per_seg), | |
1788 | segment_count_main << log_blocks_per_seg); | |
1789 | if (err) | |
1790 | return true; | |
9a59b62f | 1791 | } |
9a59b62f CY |
1792 | return false; |
1793 | } | |
1794 | ||
df728b0f | 1795 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 1796 | struct buffer_head *bh) |
aff063e2 | 1797 | { |
fd694733 JK |
1798 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1799 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1800 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
1801 | unsigned int blocksize; |
1802 | ||
a07ef784 NJ |
1803 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
1804 | f2fs_msg(sb, KERN_INFO, | |
1805 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
1806 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 1807 | return 1; |
a07ef784 | 1808 | } |
aff063e2 | 1809 | |
5c9b4692 | 1810 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 1811 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 1812 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 1813 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 1814 | PAGE_SIZE); |
5c9b4692 | 1815 | return 1; |
1816 | } | |
1817 | ||
aff063e2 JK |
1818 | /* Currently, support only 4KB block size */ |
1819 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 1820 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
1821 | f2fs_msg(sb, KERN_INFO, |
1822 | "Invalid blocksize (%u), supports only 4KB\n", | |
1823 | blocksize); | |
aff063e2 | 1824 | return 1; |
a07ef784 | 1825 | } |
5c9b4692 | 1826 | |
9a59b62f CY |
1827 | /* check log blocks per segment */ |
1828 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
1829 | f2fs_msg(sb, KERN_INFO, | |
1830 | "Invalid log blocks per segment (%u)\n", | |
1831 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
1832 | return 1; | |
1833 | } | |
1834 | ||
55cf9cb6 CY |
1835 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
1836 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
1837 | F2FS_MAX_LOG_SECTOR_SIZE || | |
1838 | le32_to_cpu(raw_super->log_sectorsize) < | |
1839 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
1840 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
1841 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1842 | return 1; |
a07ef784 | 1843 | } |
55cf9cb6 CY |
1844 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
1845 | le32_to_cpu(raw_super->log_sectorsize) != | |
1846 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
1847 | f2fs_msg(sb, KERN_INFO, | |
1848 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
1849 | le32_to_cpu(raw_super->log_sectors_per_block), | |
1850 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1851 | return 1; |
a07ef784 | 1852 | } |
9a59b62f CY |
1853 | |
1854 | /* check reserved ino info */ | |
1855 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
1856 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
1857 | le32_to_cpu(raw_super->root_ino) != 3) { | |
1858 | f2fs_msg(sb, KERN_INFO, | |
1859 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
1860 | le32_to_cpu(raw_super->node_ino), | |
1861 | le32_to_cpu(raw_super->meta_ino), | |
1862 | le32_to_cpu(raw_super->root_ino)); | |
1863 | return 1; | |
1864 | } | |
1865 | ||
b9dd4618 JQ |
1866 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
1867 | f2fs_msg(sb, KERN_INFO, | |
1868 | "Invalid segment count (%u)", | |
1869 | le32_to_cpu(raw_super->segment_count)); | |
1870 | return 1; | |
1871 | } | |
1872 | ||
9a59b62f | 1873 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 1874 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
1875 | return 1; |
1876 | ||
aff063e2 JK |
1877 | return 0; |
1878 | } | |
1879 | ||
984ec63c | 1880 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
1881 | { |
1882 | unsigned int total, fsmeta; | |
577e3495 JK |
1883 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
1884 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 1885 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
1886 | unsigned int main_segs, blocks_per_seg; |
1887 | int i; | |
aff063e2 JK |
1888 | |
1889 | total = le32_to_cpu(raw_super->segment_count); | |
1890 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
1891 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
1892 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
1893 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
1894 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
1895 | ||
6bacf52f | 1896 | if (unlikely(fsmeta >= total)) |
aff063e2 | 1897 | return 1; |
577e3495 | 1898 | |
2040fce8 JK |
1899 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
1900 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
1901 | ||
1902 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
1903 | ovp_segments == 0 || reserved_segments == 0)) { | |
1904 | f2fs_msg(sbi->sb, KERN_ERR, | |
1905 | "Wrong layout: check mkfs.f2fs version"); | |
1906 | return 1; | |
1907 | } | |
1908 | ||
15d3042a JQ |
1909 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
1910 | blocks_per_seg = sbi->blocks_per_seg; | |
1911 | ||
1912 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
1913 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
1914 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
1915 | return 1; | |
1916 | } | |
1917 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
1918 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
1919 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
1920 | return 1; | |
1921 | } | |
1922 | ||
1e968fdf | 1923 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
1924 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
1925 | return 1; | |
1926 | } | |
aff063e2 JK |
1927 | return 0; |
1928 | } | |
1929 | ||
1930 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
1931 | { | |
1932 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 1933 | int i, j; |
aff063e2 JK |
1934 | |
1935 | sbi->log_sectors_per_block = | |
1936 | le32_to_cpu(raw_super->log_sectors_per_block); | |
1937 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
1938 | sbi->blocksize = 1 << sbi->log_blocksize; | |
1939 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
1940 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
1941 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
1942 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
1943 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
1944 | sbi->total_node_count = | |
1945 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
1946 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
1947 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
1948 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
1949 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 1950 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 1951 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 1952 | |
ab9fa662 | 1953 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 1954 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 1955 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 1956 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 1957 | |
35782b23 JK |
1958 | for (i = 0; i < NR_COUNT_TYPE; i++) |
1959 | atomic_set(&sbi->nr_pages[i], 0); | |
1960 | ||
687de7f1 JK |
1961 | atomic_set(&sbi->wb_sync_req, 0); |
1962 | ||
2658e50d JK |
1963 | INIT_LIST_HEAD(&sbi->s_list); |
1964 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
1965 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
1966 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
1967 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 1968 | spin_lock_init(&sbi->cp_lock); |
1228b482 CY |
1969 | |
1970 | sbi->dirty_device = 0; | |
1971 | spin_lock_init(&sbi->dev_lock); | |
aff063e2 JK |
1972 | } |
1973 | ||
523be8a6 JK |
1974 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
1975 | { | |
35782b23 | 1976 | int err; |
41382ec4 | 1977 | |
513c5f37 JK |
1978 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
1979 | if (err) | |
1980 | return err; | |
1981 | ||
1982 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 1983 | GFP_KERNEL); |
523be8a6 JK |
1984 | } |
1985 | ||
178053e2 | 1986 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 1987 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 1988 | { |
3c62be17 | 1989 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
1990 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
1991 | sector_t sector = 0; | |
1992 | struct blk_zone *zones; | |
1993 | unsigned int i, nr_zones; | |
1994 | unsigned int n = 0; | |
1995 | int err = -EIO; | |
1996 | ||
1997 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
1998 | return 0; | |
1999 | ||
3c62be17 | 2000 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 2001 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 2002 | return -EINVAL; |
f99e8648 | 2003 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
2004 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2005 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2006 | return -EINVAL; | |
178053e2 | 2007 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2008 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2009 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2010 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2011 | FDEV(devi).nr_blkz++; |
178053e2 | 2012 | |
3c62be17 JK |
2013 | FDEV(devi).blkz_type = kmalloc(FDEV(devi).nr_blkz, GFP_KERNEL); |
2014 | if (!FDEV(devi).blkz_type) | |
178053e2 DLM |
2015 | return -ENOMEM; |
2016 | ||
2017 | #define F2FS_REPORT_NR_ZONES 4096 | |
2018 | ||
2019 | zones = kcalloc(F2FS_REPORT_NR_ZONES, sizeof(struct blk_zone), | |
2020 | GFP_KERNEL); | |
2021 | if (!zones) | |
2022 | return -ENOMEM; | |
2023 | ||
2024 | /* Get block zones type */ | |
2025 | while (zones && sector < nr_sectors) { | |
2026 | ||
2027 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2028 | err = blkdev_report_zones(bdev, sector, | |
2029 | zones, &nr_zones, | |
2030 | GFP_KERNEL); | |
2031 | if (err) | |
2032 | break; | |
2033 | if (!nr_zones) { | |
2034 | err = -EIO; | |
2035 | break; | |
2036 | } | |
2037 | ||
2038 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2039 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2040 | sector += zones[i].len; |
2041 | n++; | |
2042 | } | |
2043 | } | |
2044 | ||
2045 | kfree(zones); | |
2046 | ||
2047 | return err; | |
2048 | } | |
2049 | #endif | |
2050 | ||
9076a75f GZ |
2051 | /* |
2052 | * Read f2fs raw super block. | |
2b39e907 SL |
2053 | * Because we have two copies of super block, so read both of them |
2054 | * to get the first valid one. If any one of them is broken, we pass | |
2055 | * them recovery flag back to the caller. | |
9076a75f | 2056 | */ |
df728b0f | 2057 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2058 | struct f2fs_super_block **raw_super, |
e8240f65 | 2059 | int *valid_super_block, int *recovery) |
14d7e9de | 2060 | { |
df728b0f | 2061 | struct super_block *sb = sbi->sb; |
2b39e907 | 2062 | int block; |
e8240f65 | 2063 | struct buffer_head *bh; |
fd694733 | 2064 | struct f2fs_super_block *super; |
da554e48 | 2065 | int err = 0; |
14d7e9de | 2066 | |
b39f0de2 YH |
2067 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2068 | if (!super) | |
2069 | return -ENOMEM; | |
2b39e907 SL |
2070 | |
2071 | for (block = 0; block < 2; block++) { | |
2072 | bh = sb_bread(sb, block); | |
2073 | if (!bh) { | |
2074 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2075 | block + 1); |
2b39e907 SL |
2076 | err = -EIO; |
2077 | continue; | |
2078 | } | |
14d7e9de | 2079 | |
2b39e907 | 2080 | /* sanity checking of raw super */ |
df728b0f | 2081 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
2082 | f2fs_msg(sb, KERN_ERR, |
2083 | "Can't find valid F2FS filesystem in %dth superblock", | |
2084 | block + 1); | |
2085 | err = -EINVAL; | |
2086 | brelse(bh); | |
2087 | continue; | |
2088 | } | |
14d7e9de | 2089 | |
2b39e907 | 2090 | if (!*raw_super) { |
fd694733 JK |
2091 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2092 | sizeof(*super)); | |
2b39e907 SL |
2093 | *valid_super_block = block; |
2094 | *raw_super = super; | |
2095 | } | |
2096 | brelse(bh); | |
da554e48 | 2097 | } |
2098 | ||
2b39e907 SL |
2099 | /* Fail to read any one of the superblocks*/ |
2100 | if (err < 0) | |
2101 | *recovery = 1; | |
da554e48 | 2102 | |
da554e48 | 2103 | /* No valid superblock */ |
2b39e907 | 2104 | if (!*raw_super) |
b39f0de2 | 2105 | kfree(super); |
2b39e907 SL |
2106 | else |
2107 | err = 0; | |
da554e48 | 2108 | |
2b39e907 | 2109 | return err; |
14d7e9de | 2110 | } |
2111 | ||
fd694733 | 2112 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2113 | { |
5d909cdb | 2114 | struct buffer_head *bh; |
26d815ad JK |
2115 | int err; |
2116 | ||
df728b0f JK |
2117 | if ((recover && f2fs_readonly(sbi->sb)) || |
2118 | bdev_read_only(sbi->sb->s_bdev)) { | |
2119 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2120 | return -EROFS; |
df728b0f | 2121 | } |
f2353d7b | 2122 | |
fd694733 JK |
2123 | /* write back-up superblock first */ |
2124 | bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); | |
5d909cdb JK |
2125 | if (!bh) |
2126 | return -EIO; | |
fd694733 | 2127 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2128 | brelse(bh); |
c5bda1c8 CY |
2129 | |
2130 | /* if we are in recovery path, skip writing valid superblock */ | |
2131 | if (recover || err) | |
5d909cdb | 2132 | return err; |
26d815ad JK |
2133 | |
2134 | /* write current valid superblock */ | |
fd694733 JK |
2135 | bh = sb_getblk(sbi->sb, sbi->valid_super_block); |
2136 | if (!bh) | |
2137 | return -EIO; | |
2138 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2139 | brelse(bh); | |
2140 | return err; | |
26d815ad JK |
2141 | } |
2142 | ||
3c62be17 JK |
2143 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2144 | { | |
2145 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2146 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2147 | int i; |
2148 | ||
7bb3a371 MS |
2149 | /* Initialize single device information */ |
2150 | if (!RDEV(0).path[0]) { | |
2151 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2152 | return 0; |
7bb3a371 MS |
2153 | max_devices = 1; |
2154 | } | |
3c62be17 | 2155 | |
7bb3a371 MS |
2156 | /* |
2157 | * Initialize multiple devices information, or single | |
2158 | * zoned block device information. | |
2159 | */ | |
2160 | sbi->devs = kcalloc(max_devices, sizeof(struct f2fs_dev_info), | |
2161 | GFP_KERNEL); | |
2162 | if (!sbi->devs) | |
2163 | return -ENOMEM; | |
3c62be17 | 2164 | |
7bb3a371 | 2165 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2166 | |
7bb3a371 MS |
2167 | if (i > 0 && !RDEV(i).path[0]) |
2168 | break; | |
2169 | ||
2170 | if (max_devices == 1) { | |
2171 | /* Single zoned block device mount */ | |
2172 | FDEV(0).bdev = | |
2173 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2174 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2175 | } else { |
2176 | /* Multi-device mount */ | |
2177 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2178 | FDEV(i).total_segments = | |
2179 | le32_to_cpu(RDEV(i).total_segments); | |
2180 | if (i == 0) { | |
2181 | FDEV(i).start_blk = 0; | |
2182 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2183 | (FDEV(i).total_segments << | |
2184 | sbi->log_blocks_per_seg) - 1 + | |
2185 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2186 | } else { | |
2187 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2188 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2189 | (FDEV(i).total_segments << | |
2190 | sbi->log_blocks_per_seg) - 1; | |
2191 | } | |
2192 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2193 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2194 | } |
3c62be17 JK |
2195 | if (IS_ERR(FDEV(i).bdev)) |
2196 | return PTR_ERR(FDEV(i).bdev); | |
2197 | ||
2198 | /* to release errored devices */ | |
2199 | sbi->s_ndevs = i + 1; | |
2200 | ||
2201 | #ifdef CONFIG_BLK_DEV_ZONED | |
2202 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
2203 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
2204 | f2fs_msg(sbi->sb, KERN_ERR, | |
2205 | "Zoned block device feature not enabled\n"); | |
2206 | return -EINVAL; | |
2207 | } | |
2208 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
2209 | if (init_blkz_info(sbi, i)) { | |
2210 | f2fs_msg(sbi->sb, KERN_ERR, | |
2211 | "Failed to initialize F2FS blkzone information"); | |
2212 | return -EINVAL; | |
2213 | } | |
7bb3a371 MS |
2214 | if (max_devices == 1) |
2215 | break; | |
3c62be17 JK |
2216 | f2fs_msg(sbi->sb, KERN_INFO, |
2217 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
2218 | i, FDEV(i).path, | |
2219 | FDEV(i).total_segments, | |
2220 | FDEV(i).start_blk, FDEV(i).end_blk, | |
2221 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
2222 | "Host-aware" : "Host-managed"); | |
2223 | continue; | |
2224 | } | |
2225 | #endif | |
2226 | f2fs_msg(sbi->sb, KERN_INFO, | |
2227 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
2228 | i, FDEV(i).path, | |
2229 | FDEV(i).total_segments, | |
2230 | FDEV(i).start_blk, FDEV(i).end_blk); | |
2231 | } | |
0a595eba JK |
2232 | f2fs_msg(sbi->sb, KERN_INFO, |
2233 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
2234 | return 0; |
2235 | } | |
2236 | ||
aff063e2 JK |
2237 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
2238 | { | |
2239 | struct f2fs_sb_info *sbi; | |
da554e48 | 2240 | struct f2fs_super_block *raw_super; |
aff063e2 | 2241 | struct inode *root; |
99e3e858 | 2242 | int err; |
2adc3505 | 2243 | bool retry = true, need_fsck = false; |
dabc4a5c | 2244 | char *options = NULL; |
e8240f65 | 2245 | int recovery, i, valid_super_block; |
8f1dbbbb | 2246 | struct curseg_info *seg_i; |
aff063e2 | 2247 | |
ed2e621a | 2248 | try_onemore: |
da554e48 | 2249 | err = -EINVAL; |
2250 | raw_super = NULL; | |
e8240f65 | 2251 | valid_super_block = -1; |
da554e48 | 2252 | recovery = 0; |
2253 | ||
aff063e2 JK |
2254 | /* allocate memory for f2fs-specific super block info */ |
2255 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
2256 | if (!sbi) | |
2257 | return -ENOMEM; | |
2258 | ||
df728b0f JK |
2259 | sbi->sb = sb; |
2260 | ||
43b6573b KM |
2261 | /* Load the checksum driver */ |
2262 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
2263 | if (IS_ERR(sbi->s_chksum_driver)) { | |
2264 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
2265 | err = PTR_ERR(sbi->s_chksum_driver); | |
2266 | sbi->s_chksum_driver = NULL; | |
2267 | goto free_sbi; | |
2268 | } | |
2269 | ||
ff9234ad | 2270 | /* set a block size */ |
6bacf52f | 2271 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 2272 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 2273 | goto free_sbi; |
a07ef784 | 2274 | } |
aff063e2 | 2275 | |
df728b0f | 2276 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 2277 | &recovery); |
9076a75f GZ |
2278 | if (err) |
2279 | goto free_sbi; | |
2280 | ||
5fb08372 | 2281 | sb->s_fs_info = sbi; |
52763a4b JK |
2282 | sbi->raw_super = raw_super; |
2283 | ||
704956ec CY |
2284 | /* precompute checksum seed for metadata */ |
2285 | if (f2fs_sb_has_inode_chksum(sb)) | |
2286 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, | |
2287 | sizeof(raw_super->uuid)); | |
2288 | ||
d1b959c8 DLM |
2289 | /* |
2290 | * The BLKZONED feature indicates that the drive was formatted with | |
2291 | * zone alignment optimization. This is optional for host-aware | |
2292 | * devices, but mandatory for host-managed zoned block devices. | |
2293 | */ | |
2294 | #ifndef CONFIG_BLK_DEV_ZONED | |
2295 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
2296 | f2fs_msg(sb, KERN_ERR, | |
2297 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2298 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2299 | goto free_sb_buf; |
2300 | } | |
d1b959c8 | 2301 | #endif |
498c5e9f | 2302 | default_options(sbi); |
aff063e2 | 2303 | /* parse mount options */ |
dabc4a5c JK |
2304 | options = kstrdup((const char *)data, GFP_KERNEL); |
2305 | if (data && !options) { | |
2306 | err = -ENOMEM; | |
aff063e2 | 2307 | goto free_sb_buf; |
dabc4a5c JK |
2308 | } |
2309 | ||
2310 | err = parse_options(sb, options); | |
2311 | if (err) | |
2312 | goto free_options; | |
aff063e2 | 2313 | |
e0afc4d6 CY |
2314 | sbi->max_file_blocks = max_file_blocks(); |
2315 | sb->s_maxbytes = sbi->max_file_blocks << | |
2316 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2317 | sb->s_max_links = F2FS_LINK_MAX; |
2318 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2319 | ||
0abd675e CY |
2320 | #ifdef CONFIG_QUOTA |
2321 | sb->dq_op = &f2fs_quota_operations; | |
2322 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2323 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
0abd675e CY |
2324 | #endif |
2325 | ||
aff063e2 | 2326 | sb->s_op = &f2fs_sops; |
0b81d077 | 2327 | sb->s_cop = &f2fs_cryptops; |
aff063e2 JK |
2328 | sb->s_xattr = f2fs_xattr_handlers; |
2329 | sb->s_export_op = &f2fs_export_ops; | |
2330 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 JK |
2331 | sb->s_time_gran = 1; |
2332 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | | |
2333 | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); | |
85787090 | 2334 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
aff063e2 JK |
2335 | |
2336 | /* init f2fs-specific super block info */ | |
e8240f65 | 2337 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2338 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2339 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2340 | init_rwsem(&sbi->node_write); |
59c9081b | 2341 | init_rwsem(&sbi->node_change); |
315df839 JK |
2342 | |
2343 | /* disallow all the data/node/meta page writes */ | |
2344 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2345 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2346 | |
b0af6d49 CY |
2347 | /* init iostat info */ |
2348 | spin_lock_init(&sbi->iostat_lock); | |
2349 | sbi->iostat_enable = false; | |
2350 | ||
458e6197 | 2351 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2352 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2353 | int j; | |
2354 | ||
2355 | sbi->write_io[i] = kmalloc(n * sizeof(struct f2fs_bio_info), | |
2356 | GFP_KERNEL); | |
b63def91 CJ |
2357 | if (!sbi->write_io[i]) { |
2358 | err = -ENOMEM; | |
a912b54d | 2359 | goto free_options; |
b63def91 | 2360 | } |
a912b54d JK |
2361 | |
2362 | for (j = HOT; j < n; j++) { | |
2363 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2364 | sbi->write_io[i][j].sbi = sbi; | |
2365 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2366 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2367 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2368 | } |
458e6197 | 2369 | } |
971767ca | 2370 | |
b873b798 | 2371 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2372 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2373 | init_sb_info(sbi); |
2374 | ||
523be8a6 JK |
2375 | err = init_percpu_info(sbi); |
2376 | if (err) | |
2377 | goto free_options; | |
2378 | ||
0a595eba JK |
2379 | if (F2FS_IO_SIZE(sbi) > 1) { |
2380 | sbi->write_io_dummy = | |
a3ebfe4f | 2381 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2382 | if (!sbi->write_io_dummy) { |
2383 | err = -ENOMEM; | |
0a595eba | 2384 | goto free_options; |
1727f317 | 2385 | } |
0a595eba JK |
2386 | } |
2387 | ||
aff063e2 JK |
2388 | /* get an inode for meta space */ |
2389 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2390 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2391 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2392 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2393 | goto free_io_dummy; |
aff063e2 JK |
2394 | } |
2395 | ||
2396 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2397 | if (err) { |
2398 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2399 | goto free_meta_inode; |
a07ef784 | 2400 | } |
aff063e2 | 2401 | |
3c62be17 JK |
2402 | /* Initialize device list */ |
2403 | err = f2fs_scan_devices(sbi); | |
2404 | if (err) { | |
2405 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2406 | goto free_devices; | |
2407 | } | |
2408 | ||
aff063e2 JK |
2409 | sbi->total_valid_node_count = |
2410 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2411 | percpu_counter_set(&sbi->total_valid_inode_count, |
2412 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2413 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2414 | sbi->total_valid_block_count = | |
2415 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2416 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2417 | sbi->reserved_blocks = 0; |
41382ec4 | 2418 | |
c227f912 CY |
2419 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2420 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2421 | spin_lock_init(&sbi->inode_lock[i]); | |
2422 | } | |
aff063e2 | 2423 | |
1dcc336b CY |
2424 | init_extent_cache_info(sbi); |
2425 | ||
6451e041 | 2426 | init_ino_entry_info(sbi); |
aff063e2 JK |
2427 | |
2428 | /* setup f2fs internal modules */ | |
2429 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2430 | if (err) { |
2431 | f2fs_msg(sb, KERN_ERR, | |
2432 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2433 | goto free_sm; |
a07ef784 | 2434 | } |
aff063e2 | 2435 | err = build_node_manager(sbi); |
a07ef784 NJ |
2436 | if (err) { |
2437 | f2fs_msg(sb, KERN_ERR, | |
2438 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2439 | goto free_nm; |
a07ef784 | 2440 | } |
aff063e2 | 2441 | |
8f1dbbbb SL |
2442 | /* For write statistics */ |
2443 | if (sb->s_bdev->bd_part) | |
2444 | sbi->sectors_written_start = | |
2445 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2446 | ||
2447 | /* Read accumulated write IO statistics if exists */ | |
2448 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2449 | if (__exist_node_summaries(sbi)) | |
2450 | sbi->kbytes_written = | |
b2dde6fc | 2451 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2452 | |
aff063e2 JK |
2453 | build_gc_manager(sbi); |
2454 | ||
2455 | /* get an inode for node space */ | |
2456 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2457 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2458 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2459 | err = PTR_ERR(sbi->node_inode); |
2460 | goto free_nm; | |
2461 | } | |
2462 | ||
2658e50d JK |
2463 | f2fs_join_shrinker(sbi); |
2464 | ||
aa51d08a JK |
2465 | err = f2fs_build_stats(sbi); |
2466 | if (err) | |
2467 | goto free_nm; | |
2468 | ||
aff063e2 JK |
2469 | /* read root inode and dentry */ |
2470 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2471 | if (IS_ERR(root)) { | |
a07ef784 | 2472 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 JK |
2473 | err = PTR_ERR(root); |
2474 | goto free_node_inode; | |
2475 | } | |
8f99a946 | 2476 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2477 | iput(root); |
8f99a946 | 2478 | err = -EINVAL; |
9d847950 | 2479 | goto free_node_inode; |
8f99a946 | 2480 | } |
aff063e2 JK |
2481 | |
2482 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2483 | if (!sb->s_root) { | |
2484 | err = -ENOMEM; | |
2485 | goto free_root_inode; | |
2486 | } | |
2487 | ||
dc6b2055 | 2488 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2489 | if (err) |
a398101a | 2490 | goto free_root_inode; |
b59d0bae | 2491 | |
4b2414d0 CY |
2492 | /* if there are nt orphan nodes free them */ |
2493 | err = recover_orphan_inodes(sbi); | |
2494 | if (err) | |
2495 | goto free_sysfs; | |
2496 | ||
6437d1b0 JK |
2497 | /* recover fsynced data */ |
2498 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2499 | /* |
2500 | * mount should be failed, when device has readonly mode, and | |
2501 | * previous checkpoint was not done by clean system shutdown. | |
2502 | */ | |
2503 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2504 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2505 | err = -EROFS; |
4b2414d0 | 2506 | goto free_meta; |
081d78c2 | 2507 | } |
2adc3505 CY |
2508 | |
2509 | if (need_fsck) | |
2510 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2511 | ||
a468f0ef JK |
2512 | if (!retry) |
2513 | goto skip_recovery; | |
2514 | ||
6781eabb JK |
2515 | err = recover_fsync_data(sbi, false); |
2516 | if (err < 0) { | |
2adc3505 | 2517 | need_fsck = true; |
6437d1b0 | 2518 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2519 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 2520 | goto free_meta; |
ed2e621a | 2521 | } |
6781eabb JK |
2522 | } else { |
2523 | err = recover_fsync_data(sbi, true); | |
2524 | ||
2525 | if (!f2fs_readonly(sb) && err > 0) { | |
2526 | err = -EINVAL; | |
2527 | f2fs_msg(sb, KERN_ERR, | |
2528 | "Need to recover fsync data"); | |
a398101a | 2529 | goto free_sysfs; |
6781eabb | 2530 | } |
6437d1b0 | 2531 | } |
a468f0ef | 2532 | skip_recovery: |
315df839 JK |
2533 | /* recover_fsync_data() cleared this already */ |
2534 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2535 | |
6437d1b0 JK |
2536 | /* |
2537 | * If filesystem is not mounted as read-only then | |
2538 | * do start the gc_thread. | |
2539 | */ | |
6c029932 | 2540 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2541 | /* After POR, we can run background GC thread.*/ |
2542 | err = start_gc_thread(sbi); | |
2543 | if (err) | |
4b2414d0 | 2544 | goto free_meta; |
6437d1b0 | 2545 | } |
dabc4a5c | 2546 | kfree(options); |
da554e48 | 2547 | |
2548 | /* recover broken superblock */ | |
f2353d7b | 2549 | if (recovery) { |
41214b3c CY |
2550 | err = f2fs_commit_super(sbi, true); |
2551 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2552 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2553 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2554 | } |
2555 | ||
1200abb2 JK |
2556 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2557 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2558 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2559 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2560 | return 0; |
6437d1b0 | 2561 | |
4b2414d0 | 2562 | free_meta: |
0f18b462 | 2563 | f2fs_sync_inode_meta(sbi); |
4b2414d0 CY |
2564 | /* |
2565 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2566 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2567 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2568 | * falls into an infinite loop in sync_meta_pages(). | |
2569 | */ | |
2570 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
2571 | free_sysfs: | |
dc6b2055 | 2572 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2573 | free_root_inode: |
2574 | dput(sb->s_root); | |
2575 | sb->s_root = NULL; | |
2576 | free_node_inode: | |
bb5dada7 | 2577 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
2658e50d | 2578 | mutex_lock(&sbi->umount_mutex); |
d41065e2 | 2579 | release_ino_entry(sbi, true); |
2658e50d | 2580 | f2fs_leave_shrinker(sbi); |
aff063e2 | 2581 | iput(sbi->node_inode); |
2658e50d | 2582 | mutex_unlock(&sbi->umount_mutex); |
aa51d08a | 2583 | f2fs_destroy_stats(sbi); |
aff063e2 JK |
2584 | free_nm: |
2585 | destroy_node_manager(sbi); | |
2586 | free_sm: | |
2587 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2588 | free_devices: |
2589 | destroy_device_list(sbi); | |
aff063e2 JK |
2590 | kfree(sbi->ckpt); |
2591 | free_meta_inode: | |
2592 | make_bad_inode(sbi->meta_inode); | |
2593 | iput(sbi->meta_inode); | |
0a595eba JK |
2594 | free_io_dummy: |
2595 | mempool_destroy(sbi->write_io_dummy); | |
dabc4a5c | 2596 | free_options: |
a912b54d JK |
2597 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2598 | kfree(sbi->write_io[i]); | |
523be8a6 | 2599 | destroy_percpu_info(sbi); |
4b2414d0 CY |
2600 | #ifdef CONFIG_QUOTA |
2601 | for (i = 0; i < MAXQUOTAS; i++) | |
2602 | kfree(sbi->s_qf_names[i]); | |
2603 | #endif | |
dabc4a5c | 2604 | kfree(options); |
aff063e2 | 2605 | free_sb_buf: |
b39f0de2 | 2606 | kfree(raw_super); |
aff063e2 | 2607 | free_sbi: |
43b6573b KM |
2608 | if (sbi->s_chksum_driver) |
2609 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2610 | kfree(sbi); |
ed2e621a JK |
2611 | |
2612 | /* give only one another chance */ | |
2613 | if (retry) { | |
9df47ba7 | 2614 | retry = false; |
ed2e621a JK |
2615 | shrink_dcache_sb(sb); |
2616 | goto try_onemore; | |
2617 | } | |
aff063e2 JK |
2618 | return err; |
2619 | } | |
2620 | ||
2621 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2622 | const char *dev_name, void *data) | |
2623 | { | |
2624 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2625 | } | |
2626 | ||
30a5537f JK |
2627 | static void kill_f2fs_super(struct super_block *sb) |
2628 | { | |
cce13252 | 2629 | if (sb->s_root) { |
caf0047e | 2630 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2631 | stop_gc_thread(F2FS_SB(sb)); |
2632 | stop_discard_thread(F2FS_SB(sb)); | |
2633 | } | |
30a5537f JK |
2634 | kill_block_super(sb); |
2635 | } | |
2636 | ||
aff063e2 JK |
2637 | static struct file_system_type f2fs_fs_type = { |
2638 | .owner = THIS_MODULE, | |
2639 | .name = "f2fs", | |
2640 | .mount = f2fs_mount, | |
30a5537f | 2641 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2642 | .fs_flags = FS_REQUIRES_DEV, |
2643 | }; | |
7f78e035 | 2644 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2645 | |
6e6093a8 | 2646 | static int __init init_inodecache(void) |
aff063e2 | 2647 | { |
5d097056 VD |
2648 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2649 | sizeof(struct f2fs_inode_info), 0, | |
2650 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2651 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2652 | return -ENOMEM; |
2653 | return 0; | |
2654 | } | |
2655 | ||
2656 | static void destroy_inodecache(void) | |
2657 | { | |
2658 | /* | |
2659 | * Make sure all delayed rcu free inodes are flushed before we | |
2660 | * destroy cache. | |
2661 | */ | |
2662 | rcu_barrier(); | |
2663 | kmem_cache_destroy(f2fs_inode_cachep); | |
2664 | } | |
2665 | ||
2666 | static int __init init_f2fs_fs(void) | |
2667 | { | |
2668 | int err; | |
2669 | ||
c0508650 JK |
2670 | f2fs_build_trace_ios(); |
2671 | ||
aff063e2 JK |
2672 | err = init_inodecache(); |
2673 | if (err) | |
2674 | goto fail; | |
2675 | err = create_node_manager_caches(); | |
2676 | if (err) | |
9890ff3f | 2677 | goto free_inodecache; |
7fd9e544 | 2678 | err = create_segment_manager_caches(); |
aff063e2 | 2679 | if (err) |
9890ff3f | 2680 | goto free_node_manager_caches; |
aff063e2 JK |
2681 | err = create_checkpoint_caches(); |
2682 | if (err) | |
06292073 | 2683 | goto free_segment_manager_caches; |
1dcc336b CY |
2684 | err = create_extent_cache(); |
2685 | if (err) | |
2686 | goto free_checkpoint_caches; | |
dc6b2055 | 2687 | err = f2fs_init_sysfs(); |
a398101a | 2688 | if (err) |
1dcc336b | 2689 | goto free_extent_cache; |
2658e50d | 2690 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 2691 | if (err) |
a398101a | 2692 | goto free_sysfs; |
2658e50d JK |
2693 | err = register_filesystem(&f2fs_fs_type); |
2694 | if (err) | |
2695 | goto free_shrinker; | |
787c7b8c CY |
2696 | err = f2fs_create_root_stats(); |
2697 | if (err) | |
2698 | goto free_filesystem; | |
9890ff3f ZH |
2699 | return 0; |
2700 | ||
787c7b8c CY |
2701 | free_filesystem: |
2702 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
2703 | free_shrinker: |
2704 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 2705 | free_sysfs: |
dc6b2055 | 2706 | f2fs_exit_sysfs(); |
1dcc336b CY |
2707 | free_extent_cache: |
2708 | destroy_extent_cache(); | |
9890ff3f ZH |
2709 | free_checkpoint_caches: |
2710 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
2711 | free_segment_manager_caches: |
2712 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
2713 | free_node_manager_caches: |
2714 | destroy_node_manager_caches(); | |
2715 | free_inodecache: | |
2716 | destroy_inodecache(); | |
aff063e2 JK |
2717 | fail: |
2718 | return err; | |
2719 | } | |
2720 | ||
2721 | static void __exit exit_f2fs_fs(void) | |
2722 | { | |
4589d25d | 2723 | f2fs_destroy_root_stats(); |
aff063e2 | 2724 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 2725 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 2726 | f2fs_exit_sysfs(); |
fdf6c8be | 2727 | destroy_extent_cache(); |
aff063e2 | 2728 | destroy_checkpoint_caches(); |
5dcd8a71 | 2729 | destroy_segment_manager_caches(); |
aff063e2 JK |
2730 | destroy_node_manager_caches(); |
2731 | destroy_inodecache(); | |
351f4fba | 2732 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
2733 | } |
2734 | ||
2735 | module_init(init_f2fs_fs) | |
2736 | module_exit(exit_f2fs_fs) | |
2737 | ||
2738 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
2739 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
2740 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 2741 |