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0a8165d7 | 1 | /* |
aff063e2 JK |
2 | * fs/f2fs/super.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/statfs.h> | |
aff063e2 JK |
15 | #include <linux/buffer_head.h> |
16 | #include <linux/backing-dev.h> | |
17 | #include <linux/kthread.h> | |
18 | #include <linux/parser.h> | |
19 | #include <linux/mount.h> | |
20 | #include <linux/seq_file.h> | |
5e176d54 | 21 | #include <linux/proc_fs.h> |
aff063e2 JK |
22 | #include <linux/random.h> |
23 | #include <linux/exportfs.h> | |
d3ee456d | 24 | #include <linux/blkdev.h> |
0abd675e | 25 | #include <linux/quotaops.h> |
aff063e2 | 26 | #include <linux/f2fs_fs.h> |
b59d0bae | 27 | #include <linux/sysfs.h> |
4b2414d0 | 28 | #include <linux/quota.h> |
aff063e2 JK |
29 | |
30 | #include "f2fs.h" | |
31 | #include "node.h" | |
5ec4e49f | 32 | #include "segment.h" |
aff063e2 | 33 | #include "xattr.h" |
b59d0bae | 34 | #include "gc.h" |
db9f7c1a | 35 | #include "trace.h" |
aff063e2 | 36 | |
a2a4a7e4 NJ |
37 | #define CREATE_TRACE_POINTS |
38 | #include <trace/events/f2fs.h> | |
39 | ||
aff063e2 JK |
40 | static struct kmem_cache *f2fs_inode_cachep; |
41 | ||
73faec4d | 42 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2c63fead JK |
43 | |
44 | char *fault_name[FAULT_MAX] = { | |
45 | [FAULT_KMALLOC] = "kmalloc", | |
c41f3cc3 | 46 | [FAULT_PAGE_ALLOC] = "page alloc", |
01eccef7 | 47 | [FAULT_PAGE_GET] = "page get", |
d62fe971 | 48 | [FAULT_ALLOC_BIO] = "alloc bio", |
cb78942b JK |
49 | [FAULT_ALLOC_NID] = "alloc nid", |
50 | [FAULT_ORPHAN] = "orphan", | |
51 | [FAULT_BLOCK] = "no more block", | |
52 | [FAULT_DIR_DEPTH] = "too big dir depth", | |
53aa6bbf | 53 | [FAULT_EVICT_INODE] = "evict_inode fail", |
14b44d23 | 54 | [FAULT_TRUNCATE] = "truncate fail", |
8b038c70 | 55 | [FAULT_IO] = "IO error", |
0f348028 | 56 | [FAULT_CHECKPOINT] = "checkpoint error", |
2c63fead | 57 | }; |
08796897 | 58 | |
1ecc0c5c CY |
59 | static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, |
60 | unsigned int rate) | |
08796897 | 61 | { |
1ecc0c5c CY |
62 | struct f2fs_fault_info *ffi = &sbi->fault_info; |
63 | ||
08796897 | 64 | if (rate) { |
1ecc0c5c CY |
65 | atomic_set(&ffi->inject_ops, 0); |
66 | ffi->inject_rate = rate; | |
67 | ffi->inject_type = (1 << FAULT_MAX) - 1; | |
08796897 | 68 | } else { |
1ecc0c5c | 69 | memset(ffi, 0, sizeof(struct f2fs_fault_info)); |
08796897 SY |
70 | } |
71 | } | |
73faec4d JK |
72 | #endif |
73 | ||
2658e50d JK |
74 | /* f2fs-wide shrinker description */ |
75 | static struct shrinker f2fs_shrinker_info = { | |
76 | .scan_objects = f2fs_shrink_scan, | |
77 | .count_objects = f2fs_shrink_count, | |
78 | .seeks = DEFAULT_SEEKS, | |
79 | }; | |
80 | ||
aff063e2 | 81 | enum { |
696c018c | 82 | Opt_gc_background, |
aff063e2 | 83 | Opt_disable_roll_forward, |
2d834bf9 | 84 | Opt_norecovery, |
aff063e2 | 85 | Opt_discard, |
64058be9 | 86 | Opt_nodiscard, |
aff063e2 | 87 | Opt_noheap, |
7a20b8a6 | 88 | Opt_heap, |
4058c511 | 89 | Opt_user_xattr, |
aff063e2 | 90 | Opt_nouser_xattr, |
4058c511 | 91 | Opt_acl, |
aff063e2 JK |
92 | Opt_noacl, |
93 | Opt_active_logs, | |
94 | Opt_disable_ext_identify, | |
444c580f | 95 | Opt_inline_xattr, |
23cf7212 | 96 | Opt_noinline_xattr, |
6afc662e | 97 | Opt_inline_xattr_size, |
8274de77 | 98 | Opt_inline_data, |
5efd3c6f | 99 | Opt_inline_dentry, |
97c1794a | 100 | Opt_noinline_dentry, |
6b4afdd7 | 101 | Opt_flush_merge, |
69e9e427 | 102 | Opt_noflush_merge, |
0f7b2abd | 103 | Opt_nobarrier, |
d5053a34 | 104 | Opt_fastboot, |
89672159 | 105 | Opt_extent_cache, |
7daaea25 | 106 | Opt_noextent_cache, |
75342797 | 107 | Opt_noinline_data, |
343f40f0 | 108 | Opt_data_flush, |
36abef4e | 109 | Opt_mode, |
ec91538d | 110 | Opt_io_size_bits, |
73faec4d | 111 | Opt_fault_injection, |
6d94c74a JK |
112 | Opt_lazytime, |
113 | Opt_nolazytime, | |
4b2414d0 CY |
114 | Opt_quota, |
115 | Opt_noquota, | |
0abd675e CY |
116 | Opt_usrquota, |
117 | Opt_grpquota, | |
5c57132e | 118 | Opt_prjquota, |
4b2414d0 CY |
119 | Opt_usrjquota, |
120 | Opt_grpjquota, | |
121 | Opt_prjjquota, | |
122 | Opt_offusrjquota, | |
123 | Opt_offgrpjquota, | |
124 | Opt_offprjjquota, | |
125 | Opt_jqfmt_vfsold, | |
126 | Opt_jqfmt_vfsv0, | |
127 | Opt_jqfmt_vfsv1, | |
aff063e2 JK |
128 | Opt_err, |
129 | }; | |
130 | ||
131 | static match_table_t f2fs_tokens = { | |
696c018c | 132 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 133 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 134 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 135 | {Opt_discard, "discard"}, |
64058be9 | 136 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 137 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 138 | {Opt_heap, "heap"}, |
4058c511 | 139 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 140 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 141 | {Opt_acl, "acl"}, |
aff063e2 JK |
142 | {Opt_noacl, "noacl"}, |
143 | {Opt_active_logs, "active_logs=%u"}, | |
144 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 145 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 146 | {Opt_noinline_xattr, "noinline_xattr"}, |
6afc662e | 147 | {Opt_inline_xattr_size, "inline_xattr_size=%u"}, |
8274de77 | 148 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 149 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 150 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 151 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 152 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 153 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 154 | {Opt_fastboot, "fastboot"}, |
89672159 | 155 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 156 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 157 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 158 | {Opt_data_flush, "data_flush"}, |
36abef4e | 159 | {Opt_mode, "mode=%s"}, |
ec91538d | 160 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 161 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
162 | {Opt_lazytime, "lazytime"}, |
163 | {Opt_nolazytime, "nolazytime"}, | |
4b2414d0 CY |
164 | {Opt_quota, "quota"}, |
165 | {Opt_noquota, "noquota"}, | |
0abd675e CY |
166 | {Opt_usrquota, "usrquota"}, |
167 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 168 | {Opt_prjquota, "prjquota"}, |
4b2414d0 CY |
169 | {Opt_usrjquota, "usrjquota=%s"}, |
170 | {Opt_grpjquota, "grpjquota=%s"}, | |
171 | {Opt_prjjquota, "prjjquota=%s"}, | |
172 | {Opt_offusrjquota, "usrjquota="}, | |
173 | {Opt_offgrpjquota, "grpjquota="}, | |
174 | {Opt_offprjjquota, "prjjquota="}, | |
175 | {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, | |
176 | {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, | |
177 | {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, | |
aff063e2 JK |
178 | {Opt_err, NULL}, |
179 | }; | |
180 | ||
a07ef784 NJ |
181 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
182 | { | |
183 | struct va_format vaf; | |
184 | va_list args; | |
185 | ||
186 | va_start(args, fmt); | |
187 | vaf.fmt = fmt; | |
188 | vaf.va = &args; | |
a36c106d | 189 | printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); |
a07ef784 NJ |
190 | va_end(args); |
191 | } | |
192 | ||
aff063e2 JK |
193 | static void init_once(void *foo) |
194 | { | |
195 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
196 | ||
aff063e2 JK |
197 | inode_init_once(&fi->vfs_inode); |
198 | } | |
199 | ||
4b2414d0 CY |
200 | #ifdef CONFIG_QUOTA |
201 | static const char * const quotatypes[] = INITQFNAMES; | |
202 | #define QTYPE2NAME(t) (quotatypes[t]) | |
203 | static int f2fs_set_qf_name(struct super_block *sb, int qtype, | |
204 | substring_t *args) | |
205 | { | |
206 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
207 | char *qname; | |
208 | int ret = -EINVAL; | |
209 | ||
210 | if (sb_any_quota_loaded(sb) && !sbi->s_qf_names[qtype]) { | |
211 | f2fs_msg(sb, KERN_ERR, | |
212 | "Cannot change journaled " | |
213 | "quota options when quota turned on"); | |
214 | return -EINVAL; | |
215 | } | |
ea676733 JK |
216 | if (f2fs_sb_has_quota_ino(sb)) { |
217 | f2fs_msg(sb, KERN_INFO, | |
218 | "QUOTA feature is enabled, so ignore qf_name"); | |
219 | return 0; | |
220 | } | |
221 | ||
4b2414d0 CY |
222 | qname = match_strdup(args); |
223 | if (!qname) { | |
224 | f2fs_msg(sb, KERN_ERR, | |
225 | "Not enough memory for storing quotafile name"); | |
226 | return -EINVAL; | |
227 | } | |
228 | if (sbi->s_qf_names[qtype]) { | |
229 | if (strcmp(sbi->s_qf_names[qtype], qname) == 0) | |
230 | ret = 0; | |
231 | else | |
232 | f2fs_msg(sb, KERN_ERR, | |
233 | "%s quota file already specified", | |
234 | QTYPE2NAME(qtype)); | |
235 | goto errout; | |
236 | } | |
237 | if (strchr(qname, '/')) { | |
238 | f2fs_msg(sb, KERN_ERR, | |
239 | "quotafile must be on filesystem root"); | |
240 | goto errout; | |
241 | } | |
242 | sbi->s_qf_names[qtype] = qname; | |
243 | set_opt(sbi, QUOTA); | |
244 | return 0; | |
245 | errout: | |
246 | kfree(qname); | |
247 | return ret; | |
248 | } | |
249 | ||
250 | static int f2fs_clear_qf_name(struct super_block *sb, int qtype) | |
251 | { | |
252 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
253 | ||
254 | if (sb_any_quota_loaded(sb) && sbi->s_qf_names[qtype]) { | |
255 | f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" | |
256 | " when quota turned on"); | |
257 | return -EINVAL; | |
258 | } | |
259 | kfree(sbi->s_qf_names[qtype]); | |
260 | sbi->s_qf_names[qtype] = NULL; | |
261 | return 0; | |
262 | } | |
263 | ||
264 | static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) | |
265 | { | |
266 | /* | |
267 | * We do the test below only for project quotas. 'usrquota' and | |
268 | * 'grpquota' mount options are allowed even without quota feature | |
269 | * to support legacy quotas in quota files. | |
270 | */ | |
271 | if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) { | |
272 | f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " | |
273 | "Cannot enable project quota enforcement."); | |
274 | return -1; | |
275 | } | |
276 | if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA] || | |
277 | sbi->s_qf_names[PRJQUOTA]) { | |
278 | if (test_opt(sbi, USRQUOTA) && sbi->s_qf_names[USRQUOTA]) | |
279 | clear_opt(sbi, USRQUOTA); | |
280 | ||
281 | if (test_opt(sbi, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) | |
282 | clear_opt(sbi, GRPQUOTA); | |
283 | ||
284 | if (test_opt(sbi, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA]) | |
285 | clear_opt(sbi, PRJQUOTA); | |
286 | ||
287 | if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || | |
288 | test_opt(sbi, PRJQUOTA)) { | |
289 | f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " | |
290 | "format mixing"); | |
291 | return -1; | |
292 | } | |
293 | ||
294 | if (!sbi->s_jquota_fmt) { | |
295 | f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " | |
296 | "not specified"); | |
297 | return -1; | |
298 | } | |
299 | } | |
ea676733 JK |
300 | |
301 | if (f2fs_sb_has_quota_ino(sbi->sb) && sbi->s_jquota_fmt) { | |
302 | f2fs_msg(sbi->sb, KERN_INFO, | |
303 | "QUOTA feature is enabled, so ignore jquota_fmt"); | |
304 | sbi->s_jquota_fmt = 0; | |
305 | } | |
306 | if (f2fs_sb_has_quota_ino(sbi->sb) && sb_rdonly(sbi->sb)) { | |
307 | f2fs_msg(sbi->sb, KERN_INFO, | |
308 | "Filesystem with quota feature cannot be mounted RDWR " | |
309 | "without CONFIG_QUOTA"); | |
310 | return -1; | |
311 | } | |
4b2414d0 CY |
312 | return 0; |
313 | } | |
314 | #endif | |
315 | ||
696c018c NJ |
316 | static int parse_options(struct super_block *sb, char *options) |
317 | { | |
318 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 319 | struct request_queue *q; |
696c018c NJ |
320 | substring_t args[MAX_OPT_ARGS]; |
321 | char *p, *name; | |
322 | int arg = 0; | |
4b2414d0 CY |
323 | #ifdef CONFIG_QUOTA |
324 | int ret; | |
325 | #endif | |
696c018c NJ |
326 | |
327 | if (!options) | |
328 | return 0; | |
329 | ||
330 | while ((p = strsep(&options, ",")) != NULL) { | |
331 | int token; | |
332 | if (!*p) | |
333 | continue; | |
334 | /* | |
335 | * Initialize args struct so we know whether arg was | |
336 | * found; some options take optional arguments. | |
337 | */ | |
338 | args[0].to = args[0].from = NULL; | |
339 | token = match_token(p, f2fs_tokens, args); | |
340 | ||
341 | switch (token) { | |
342 | case Opt_gc_background: | |
343 | name = match_strdup(&args[0]); | |
344 | ||
345 | if (!name) | |
346 | return -ENOMEM; | |
6aefd93b | 347 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 348 | set_opt(sbi, BG_GC); |
6aefd93b JK |
349 | clear_opt(sbi, FORCE_FG_GC); |
350 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 351 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
352 | clear_opt(sbi, FORCE_FG_GC); |
353 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
354 | set_opt(sbi, BG_GC); | |
355 | set_opt(sbi, FORCE_FG_GC); | |
356 | } else { | |
696c018c NJ |
357 | kfree(name); |
358 | return -EINVAL; | |
359 | } | |
360 | kfree(name); | |
361 | break; | |
362 | case Opt_disable_roll_forward: | |
363 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
364 | break; | |
2d834bf9 JK |
365 | case Opt_norecovery: |
366 | /* this option mounts f2fs with ro */ | |
367 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
368 | if (!f2fs_readonly(sb)) | |
369 | return -EINVAL; | |
370 | break; | |
696c018c | 371 | case Opt_discard: |
09d54cdd CY |
372 | q = bdev_get_queue(sb->s_bdev); |
373 | if (blk_queue_discard(q)) { | |
374 | set_opt(sbi, DISCARD); | |
0ab02998 | 375 | } else if (!f2fs_sb_mounted_blkzoned(sb)) { |
09d54cdd CY |
376 | f2fs_msg(sb, KERN_WARNING, |
377 | "mounting with \"discard\" option, but " | |
378 | "the device does not support discard"); | |
379 | } | |
696c018c | 380 | break; |
64058be9 | 381 | case Opt_nodiscard: |
96ba2dec DLM |
382 | if (f2fs_sb_mounted_blkzoned(sb)) { |
383 | f2fs_msg(sb, KERN_WARNING, | |
384 | "discard is required for zoned block devices"); | |
385 | return -EINVAL; | |
386 | } | |
64058be9 | 387 | clear_opt(sbi, DISCARD); |
487df616 | 388 | break; |
696c018c NJ |
389 | case Opt_noheap: |
390 | set_opt(sbi, NOHEAP); | |
391 | break; | |
7a20b8a6 JK |
392 | case Opt_heap: |
393 | clear_opt(sbi, NOHEAP); | |
394 | break; | |
696c018c | 395 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
396 | case Opt_user_xattr: |
397 | set_opt(sbi, XATTR_USER); | |
398 | break; | |
696c018c NJ |
399 | case Opt_nouser_xattr: |
400 | clear_opt(sbi, XATTR_USER); | |
401 | break; | |
444c580f JK |
402 | case Opt_inline_xattr: |
403 | set_opt(sbi, INLINE_XATTR); | |
404 | break; | |
23cf7212 CY |
405 | case Opt_noinline_xattr: |
406 | clear_opt(sbi, INLINE_XATTR); | |
407 | break; | |
6afc662e CY |
408 | case Opt_inline_xattr_size: |
409 | if (args->from && match_int(args, &arg)) | |
410 | return -EINVAL; | |
411 | set_opt(sbi, INLINE_XATTR_SIZE); | |
412 | sbi->inline_xattr_size = arg; | |
413 | break; | |
696c018c | 414 | #else |
4058c511 KA |
415 | case Opt_user_xattr: |
416 | f2fs_msg(sb, KERN_INFO, | |
417 | "user_xattr options not supported"); | |
418 | break; | |
696c018c NJ |
419 | case Opt_nouser_xattr: |
420 | f2fs_msg(sb, KERN_INFO, | |
421 | "nouser_xattr options not supported"); | |
422 | break; | |
444c580f JK |
423 | case Opt_inline_xattr: |
424 | f2fs_msg(sb, KERN_INFO, | |
425 | "inline_xattr options not supported"); | |
426 | break; | |
23cf7212 CY |
427 | case Opt_noinline_xattr: |
428 | f2fs_msg(sb, KERN_INFO, | |
429 | "noinline_xattr options not supported"); | |
430 | break; | |
696c018c NJ |
431 | #endif |
432 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
433 | case Opt_acl: |
434 | set_opt(sbi, POSIX_ACL); | |
435 | break; | |
696c018c NJ |
436 | case Opt_noacl: |
437 | clear_opt(sbi, POSIX_ACL); | |
438 | break; | |
439 | #else | |
4058c511 KA |
440 | case Opt_acl: |
441 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
442 | break; | |
696c018c NJ |
443 | case Opt_noacl: |
444 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
445 | break; | |
446 | #endif | |
447 | case Opt_active_logs: | |
448 | if (args->from && match_int(args, &arg)) | |
449 | return -EINVAL; | |
450 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
451 | return -EINVAL; | |
452 | sbi->active_logs = arg; | |
453 | break; | |
454 | case Opt_disable_ext_identify: | |
455 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
456 | break; | |
8274de77 HL |
457 | case Opt_inline_data: |
458 | set_opt(sbi, INLINE_DATA); | |
459 | break; | |
5efd3c6f CY |
460 | case Opt_inline_dentry: |
461 | set_opt(sbi, INLINE_DENTRY); | |
462 | break; | |
97c1794a CY |
463 | case Opt_noinline_dentry: |
464 | clear_opt(sbi, INLINE_DENTRY); | |
465 | break; | |
6b4afdd7 JK |
466 | case Opt_flush_merge: |
467 | set_opt(sbi, FLUSH_MERGE); | |
468 | break; | |
69e9e427 JK |
469 | case Opt_noflush_merge: |
470 | clear_opt(sbi, FLUSH_MERGE); | |
471 | break; | |
0f7b2abd JK |
472 | case Opt_nobarrier: |
473 | set_opt(sbi, NOBARRIER); | |
474 | break; | |
d5053a34 JK |
475 | case Opt_fastboot: |
476 | set_opt(sbi, FASTBOOT); | |
477 | break; | |
89672159 CY |
478 | case Opt_extent_cache: |
479 | set_opt(sbi, EXTENT_CACHE); | |
480 | break; | |
7daaea25 JK |
481 | case Opt_noextent_cache: |
482 | clear_opt(sbi, EXTENT_CACHE); | |
483 | break; | |
75342797 WL |
484 | case Opt_noinline_data: |
485 | clear_opt(sbi, INLINE_DATA); | |
486 | break; | |
343f40f0 CY |
487 | case Opt_data_flush: |
488 | set_opt(sbi, DATA_FLUSH); | |
489 | break; | |
36abef4e JK |
490 | case Opt_mode: |
491 | name = match_strdup(&args[0]); | |
492 | ||
493 | if (!name) | |
494 | return -ENOMEM; | |
495 | if (strlen(name) == 8 && | |
496 | !strncmp(name, "adaptive", 8)) { | |
3adc57e9 DLM |
497 | if (f2fs_sb_mounted_blkzoned(sb)) { |
498 | f2fs_msg(sb, KERN_WARNING, | |
499 | "adaptive mode is not allowed with " | |
500 | "zoned block device feature"); | |
501 | kfree(name); | |
502 | return -EINVAL; | |
503 | } | |
52763a4b | 504 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
505 | } else if (strlen(name) == 3 && |
506 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 507 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
508 | } else { |
509 | kfree(name); | |
510 | return -EINVAL; | |
511 | } | |
512 | kfree(name); | |
513 | break; | |
ec91538d JK |
514 | case Opt_io_size_bits: |
515 | if (args->from && match_int(args, &arg)) | |
516 | return -EINVAL; | |
517 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
518 | f2fs_msg(sb, KERN_WARNING, | |
519 | "Not support %d, larger than %d", | |
520 | 1 << arg, BIO_MAX_PAGES); | |
521 | return -EINVAL; | |
522 | } | |
523 | sbi->write_io_size_bits = arg; | |
524 | break; | |
73faec4d JK |
525 | case Opt_fault_injection: |
526 | if (args->from && match_int(args, &arg)) | |
527 | return -EINVAL; | |
528 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 529 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 530 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
531 | #else |
532 | f2fs_msg(sb, KERN_INFO, | |
533 | "FAULT_INJECTION was not selected"); | |
534 | #endif | |
535 | break; | |
6d94c74a | 536 | case Opt_lazytime: |
1751e8a6 | 537 | sb->s_flags |= SB_LAZYTIME; |
6d94c74a JK |
538 | break; |
539 | case Opt_nolazytime: | |
1751e8a6 | 540 | sb->s_flags &= ~SB_LAZYTIME; |
6d94c74a | 541 | break; |
0abd675e | 542 | #ifdef CONFIG_QUOTA |
4b2414d0 | 543 | case Opt_quota: |
0abd675e CY |
544 | case Opt_usrquota: |
545 | set_opt(sbi, USRQUOTA); | |
546 | break; | |
547 | case Opt_grpquota: | |
548 | set_opt(sbi, GRPQUOTA); | |
549 | break; | |
5c57132e CY |
550 | case Opt_prjquota: |
551 | set_opt(sbi, PRJQUOTA); | |
552 | break; | |
4b2414d0 CY |
553 | case Opt_usrjquota: |
554 | ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); | |
555 | if (ret) | |
556 | return ret; | |
557 | break; | |
558 | case Opt_grpjquota: | |
559 | ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); | |
560 | if (ret) | |
561 | return ret; | |
562 | break; | |
563 | case Opt_prjjquota: | |
564 | ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); | |
565 | if (ret) | |
566 | return ret; | |
567 | break; | |
568 | case Opt_offusrjquota: | |
569 | ret = f2fs_clear_qf_name(sb, USRQUOTA); | |
570 | if (ret) | |
571 | return ret; | |
572 | break; | |
573 | case Opt_offgrpjquota: | |
574 | ret = f2fs_clear_qf_name(sb, GRPQUOTA); | |
575 | if (ret) | |
576 | return ret; | |
577 | break; | |
578 | case Opt_offprjjquota: | |
579 | ret = f2fs_clear_qf_name(sb, PRJQUOTA); | |
580 | if (ret) | |
581 | return ret; | |
582 | break; | |
583 | case Opt_jqfmt_vfsold: | |
584 | sbi->s_jquota_fmt = QFMT_VFS_OLD; | |
585 | break; | |
586 | case Opt_jqfmt_vfsv0: | |
587 | sbi->s_jquota_fmt = QFMT_VFS_V0; | |
588 | break; | |
589 | case Opt_jqfmt_vfsv1: | |
590 | sbi->s_jquota_fmt = QFMT_VFS_V1; | |
591 | break; | |
592 | case Opt_noquota: | |
593 | clear_opt(sbi, QUOTA); | |
594 | clear_opt(sbi, USRQUOTA); | |
595 | clear_opt(sbi, GRPQUOTA); | |
596 | clear_opt(sbi, PRJQUOTA); | |
597 | break; | |
0abd675e | 598 | #else |
4b2414d0 | 599 | case Opt_quota: |
0abd675e CY |
600 | case Opt_usrquota: |
601 | case Opt_grpquota: | |
5c57132e | 602 | case Opt_prjquota: |
4b2414d0 CY |
603 | case Opt_usrjquota: |
604 | case Opt_grpjquota: | |
605 | case Opt_prjjquota: | |
606 | case Opt_offusrjquota: | |
607 | case Opt_offgrpjquota: | |
608 | case Opt_offprjjquota: | |
609 | case Opt_jqfmt_vfsold: | |
610 | case Opt_jqfmt_vfsv0: | |
611 | case Opt_jqfmt_vfsv1: | |
612 | case Opt_noquota: | |
0abd675e CY |
613 | f2fs_msg(sb, KERN_INFO, |
614 | "quota operations not supported"); | |
615 | break; | |
616 | #endif | |
696c018c NJ |
617 | default: |
618 | f2fs_msg(sb, KERN_ERR, | |
619 | "Unrecognized mount option \"%s\" or missing value", | |
620 | p); | |
621 | return -EINVAL; | |
622 | } | |
623 | } | |
4b2414d0 CY |
624 | #ifdef CONFIG_QUOTA |
625 | if (f2fs_check_quota_options(sbi)) | |
626 | return -EINVAL; | |
627 | #endif | |
ec91538d JK |
628 | |
629 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
630 | f2fs_msg(sb, KERN_ERR, | |
631 | "Should set mode=lfs with %uKB-sized IO", | |
632 | F2FS_IO_SIZE_KB(sbi)); | |
633 | return -EINVAL; | |
634 | } | |
6afc662e CY |
635 | |
636 | if (test_opt(sbi, INLINE_XATTR_SIZE)) { | |
637 | if (!test_opt(sbi, INLINE_XATTR)) { | |
638 | f2fs_msg(sb, KERN_ERR, | |
639 | "inline_xattr_size option should be " | |
640 | "set with inline_xattr option"); | |
641 | return -EINVAL; | |
642 | } | |
643 | if (!sbi->inline_xattr_size || | |
644 | sbi->inline_xattr_size >= DEF_ADDRS_PER_INODE - | |
645 | F2FS_TOTAL_EXTRA_ATTR_SIZE - | |
646 | DEF_INLINE_RESERVED_SIZE - | |
647 | DEF_MIN_INLINE_SIZE) { | |
648 | f2fs_msg(sb, KERN_ERR, | |
649 | "inline xattr size is out of range"); | |
650 | return -EINVAL; | |
651 | } | |
652 | } | |
696c018c NJ |
653 | return 0; |
654 | } | |
655 | ||
aff063e2 JK |
656 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
657 | { | |
658 | struct f2fs_inode_info *fi; | |
659 | ||
a0acdfe0 | 660 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
661 | if (!fi) |
662 | return NULL; | |
663 | ||
664 | init_once((void *) fi); | |
665 | ||
434720fa | 666 | /* Initialize f2fs-specific inode info */ |
204706c7 | 667 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
668 | fi->i_current_depth = 1; |
669 | fi->i_advise = 0; | |
d928bfbf | 670 | init_rwsem(&fi->i_sem); |
2710fd7e | 671 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 672 | INIT_LIST_HEAD(&fi->gdirty_list); |
57864ae5 | 673 | INIT_LIST_HEAD(&fi->inmem_ilist); |
88b88a66 JK |
674 | INIT_LIST_HEAD(&fi->inmem_pages); |
675 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
676 | init_rwsem(&fi->dio_rwsem[READ]); |
677 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 678 | init_rwsem(&fi->i_mmap_sem); |
27161f13 | 679 | init_rwsem(&fi->i_xattr_sem); |
aff063e2 | 680 | |
0abd675e CY |
681 | #ifdef CONFIG_QUOTA |
682 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
683 | fi->i_reserved_quota = 0; | |
684 | #endif | |
ab9fa662 JK |
685 | /* Will be used by directory only */ |
686 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 687 | |
aff063e2 JK |
688 | return &fi->vfs_inode; |
689 | } | |
690 | ||
531ad7d5 JK |
691 | static int f2fs_drop_inode(struct inode *inode) |
692 | { | |
b8d96a30 | 693 | int ret; |
531ad7d5 JK |
694 | /* |
695 | * This is to avoid a deadlock condition like below. | |
696 | * writeback_single_inode(inode) | |
697 | * - f2fs_write_data_page | |
698 | * - f2fs_gc -> iput -> evict | |
699 | * - inode_wait_for_writeback(inode) | |
700 | */ | |
0f18b462 | 701 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 702 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
703 | /* to avoid evict_inode call simultaneously */ |
704 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
705 | spin_unlock(&inode->i_lock); |
706 | ||
707 | /* some remained atomic pages should discarded */ | |
708 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 709 | drop_inmem_pages(inode); |
06e1bc05 | 710 | |
3e72f721 JK |
711 | /* should remain fi->extent_tree for writepage */ |
712 | f2fs_destroy_extent_node(inode); | |
713 | ||
06e1bc05 | 714 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 715 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
716 | |
717 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 718 | f2fs_truncate(inode); |
06e1bc05 JK |
719 | |
720 | sb_end_intwrite(inode->i_sb); | |
721 | ||
06e1bc05 | 722 | spin_lock(&inode->i_lock); |
3e72f721 | 723 | atomic_dec(&inode->i_count); |
06e1bc05 | 724 | } |
b8d96a30 | 725 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 726 | return 0; |
06e1bc05 | 727 | } |
b8d96a30 HP |
728 | ret = generic_drop_inode(inode); |
729 | trace_f2fs_drop_inode(inode, ret); | |
730 | return ret; | |
531ad7d5 JK |
731 | } |
732 | ||
7c45729a | 733 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 734 | { |
0f18b462 | 735 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 736 | int ret = 0; |
0f18b462 | 737 | |
0f18b462 JK |
738 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
739 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
740 | ret = 1; |
741 | } else { | |
742 | set_inode_flag(inode, FI_DIRTY_INODE); | |
743 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 744 | } |
7c45729a JK |
745 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
746 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 747 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
748 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
749 | } | |
338bbfa0 | 750 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 751 | return ret; |
0f18b462 JK |
752 | } |
753 | ||
754 | void f2fs_inode_synced(struct inode *inode) | |
755 | { | |
756 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
757 | ||
758 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
759 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
760 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
761 | return; | |
762 | } | |
7c45729a JK |
763 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
764 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
765 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
766 | } | |
0f18b462 | 767 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 768 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 769 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 770 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
771 | } |
772 | ||
b56ab837 JK |
773 | /* |
774 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
775 | * | |
776 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
777 | */ | |
778 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
779 | { | |
780 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
781 | ||
782 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
783 | inode->i_ino == F2FS_META_INO(sbi)) | |
784 | return; | |
785 | ||
786 | if (flags == I_DIRTY_TIME) | |
787 | return; | |
788 | ||
789 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
790 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
791 | ||
7c45729a | 792 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
793 | } |
794 | ||
aff063e2 JK |
795 | static void f2fs_i_callback(struct rcu_head *head) |
796 | { | |
797 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
798 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
799 | } | |
800 | ||
25ca923b | 801 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
802 | { |
803 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
804 | } | |
805 | ||
523be8a6 JK |
806 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
807 | { | |
41382ec4 | 808 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 809 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
810 | } |
811 | ||
3c62be17 JK |
812 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
813 | { | |
814 | int i; | |
815 | ||
816 | for (i = 0; i < sbi->s_ndevs; i++) { | |
817 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
818 | #ifdef CONFIG_BLK_DEV_ZONED | |
819 | kfree(FDEV(i).blkz_type); | |
820 | #endif | |
821 | } | |
822 | kfree(sbi->devs); | |
823 | } | |
824 | ||
aff063e2 JK |
825 | static void f2fs_put_super(struct super_block *sb) |
826 | { | |
827 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 828 | int i; |
cf5c759f | 829 | bool dropped; |
aff063e2 | 830 | |
0abd675e | 831 | f2fs_quota_off_umount(sb); |
aff063e2 | 832 | |
2658e50d JK |
833 | /* prevent remaining shrinker jobs */ |
834 | mutex_lock(&sbi->umount_mutex); | |
835 | ||
85dc2f2c JK |
836 | /* |
837 | * We don't need to do checkpoint when superblock is clean. | |
838 | * But, the previous checkpoint was not done by umount, it needs to do | |
839 | * clean checkpoint again. | |
840 | */ | |
caf0047e | 841 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 842 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
843 | struct cp_control cpc = { |
844 | .reason = CP_UMOUNT, | |
845 | }; | |
846 | write_checkpoint(sbi, &cpc); | |
847 | } | |
aff063e2 | 848 | |
4e6a8d9b | 849 | /* be sure to wait for any on-going discard commands */ |
cf5c759f | 850 | dropped = f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 851 | |
cf5c759f | 852 | if (f2fs_discard_en(sbi) && !sbi->discard_blks && !dropped) { |
1f43e2ad CY |
853 | struct cp_control cpc = { |
854 | .reason = CP_UMOUNT | CP_TRIMMED, | |
855 | }; | |
856 | write_checkpoint(sbi, &cpc); | |
857 | } | |
858 | ||
eca616f8 JK |
859 | /* write_checkpoint can update stat informaion */ |
860 | f2fs_destroy_stats(sbi); | |
861 | ||
cf779cab JK |
862 | /* |
863 | * normally superblock is clean, so we need to release this. | |
864 | * In addition, EIO will skip do checkpoint, we need this as well. | |
865 | */ | |
74ef9241 | 866 | release_ino_entry(sbi, true); |
6f12ac25 | 867 | |
2658e50d JK |
868 | f2fs_leave_shrinker(sbi); |
869 | mutex_unlock(&sbi->umount_mutex); | |
870 | ||
17c19120 | 871 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 872 | f2fs_flush_merged_writes(sbi); |
17c19120 | 873 | |
aff063e2 JK |
874 | iput(sbi->node_inode); |
875 | iput(sbi->meta_inode); | |
876 | ||
877 | /* destroy f2fs internal modules */ | |
878 | destroy_node_manager(sbi); | |
879 | destroy_segment_manager(sbi); | |
880 | ||
881 | kfree(sbi->ckpt); | |
a398101a | 882 | |
dc6b2055 | 883 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
884 | |
885 | sb->s_fs_info = NULL; | |
43b6573b KM |
886 | if (sbi->s_chksum_driver) |
887 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 888 | kfree(sbi->raw_super); |
523be8a6 | 889 | |
3c62be17 | 890 | destroy_device_list(sbi); |
b6895e8f | 891 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
892 | #ifdef CONFIG_QUOTA |
893 | for (i = 0; i < MAXQUOTAS; i++) | |
894 | kfree(sbi->s_qf_names[i]); | |
895 | #endif | |
523be8a6 | 896 | destroy_percpu_info(sbi); |
a912b54d JK |
897 | for (i = 0; i < NR_PAGE_TYPE; i++) |
898 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
899 | kfree(sbi); |
900 | } | |
901 | ||
902 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
903 | { | |
904 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 905 | int err = 0; |
aff063e2 | 906 | |
1f227a3e JK |
907 | if (unlikely(f2fs_cp_error(sbi))) |
908 | return 0; | |
909 | ||
a2a4a7e4 NJ |
910 | trace_f2fs_sync_fs(sb, sync); |
911 | ||
4b2414d0 CY |
912 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
913 | return -EAGAIN; | |
914 | ||
b7473754 | 915 | if (sync) { |
d5053a34 JK |
916 | struct cp_control cpc; |
917 | ||
119ee914 JK |
918 | cpc.reason = __get_cp_reason(sbi); |
919 | ||
b7473754 | 920 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 921 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 922 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 923 | } |
05ca3632 | 924 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 925 | |
c34f42e2 | 926 | return err; |
aff063e2 JK |
927 | } |
928 | ||
d6212a5f CL |
929 | static int f2fs_freeze(struct super_block *sb) |
930 | { | |
77888c1e | 931 | if (f2fs_readonly(sb)) |
d6212a5f CL |
932 | return 0; |
933 | ||
b4b9d34c JK |
934 | /* IO error happened before */ |
935 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
936 | return -EIO; | |
937 | ||
938 | /* must be clean, since sync_filesystem() was already called */ | |
939 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
940 | return -EINVAL; | |
941 | return 0; | |
d6212a5f CL |
942 | } |
943 | ||
944 | static int f2fs_unfreeze(struct super_block *sb) | |
945 | { | |
946 | return 0; | |
947 | } | |
948 | ||
ddc34e32 CY |
949 | #ifdef CONFIG_QUOTA |
950 | static int f2fs_statfs_project(struct super_block *sb, | |
951 | kprojid_t projid, struct kstatfs *buf) | |
952 | { | |
953 | struct kqid qid; | |
954 | struct dquot *dquot; | |
955 | u64 limit; | |
956 | u64 curblock; | |
957 | ||
958 | qid = make_kqid_projid(projid); | |
959 | dquot = dqget(sb, qid); | |
960 | if (IS_ERR(dquot)) | |
961 | return PTR_ERR(dquot); | |
962 | spin_lock(&dq_data_lock); | |
963 | ||
964 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
965 | dquot->dq_dqb.dqb_bsoftlimit : | |
966 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
967 | if (limit && buf->f_blocks > limit) { | |
968 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
969 | buf->f_blocks = limit; | |
970 | buf->f_bfree = buf->f_bavail = | |
971 | (buf->f_blocks > curblock) ? | |
972 | (buf->f_blocks - curblock) : 0; | |
973 | } | |
974 | ||
975 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
976 | dquot->dq_dqb.dqb_isoftlimit : | |
977 | dquot->dq_dqb.dqb_ihardlimit; | |
978 | if (limit && buf->f_files > limit) { | |
979 | buf->f_files = limit; | |
980 | buf->f_ffree = | |
981 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
982 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
983 | } | |
984 | ||
985 | spin_unlock(&dq_data_lock); | |
986 | dqput(dquot); | |
987 | return 0; | |
988 | } | |
989 | #endif | |
990 | ||
aff063e2 JK |
991 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
992 | { | |
993 | struct super_block *sb = dentry->d_sb; | |
994 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
995 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
996 | block_t total_count, user_block_count, start_count, ovp_count; | |
0cc091d0 | 997 | u64 avail_node_count; |
aff063e2 JK |
998 | |
999 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
1000 | user_block_count = sbi->user_block_count; | |
1001 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
1002 | ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; | |
1003 | buf->f_type = F2FS_SUPER_MAGIC; | |
1004 | buf->f_bsize = sbi->blocksize; | |
1005 | ||
1006 | buf->f_blocks = total_count - start_count; | |
3e6d0b4d | 1007 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; |
daeb433e | 1008 | buf->f_bavail = user_block_count - valid_user_blocks(sbi) - |
80d42145 | 1009 | sbi->current_reserved_blocks; |
aff063e2 | 1010 | |
0cc091d0 JK |
1011 | avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
1012 | ||
1013 | if (avail_node_count > user_block_count) { | |
1014 | buf->f_files = user_block_count; | |
1015 | buf->f_ffree = buf->f_bavail; | |
1016 | } else { | |
1017 | buf->f_files = avail_node_count; | |
1018 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
1019 | buf->f_bavail); | |
1020 | } | |
aff063e2 | 1021 | |
5a20d339 | 1022 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
1023 | buf->f_fsid.val[0] = (u32)id; |
1024 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1025 | ||
ddc34e32 CY |
1026 | #ifdef CONFIG_QUOTA |
1027 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
1028 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
1029 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
1030 | } | |
1031 | #endif | |
aff063e2 JK |
1032 | return 0; |
1033 | } | |
1034 | ||
4b2414d0 CY |
1035 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
1036 | struct super_block *sb) | |
1037 | { | |
1038 | #ifdef CONFIG_QUOTA | |
1039 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1040 | ||
1041 | if (sbi->s_jquota_fmt) { | |
1042 | char *fmtname = ""; | |
1043 | ||
1044 | switch (sbi->s_jquota_fmt) { | |
1045 | case QFMT_VFS_OLD: | |
1046 | fmtname = "vfsold"; | |
1047 | break; | |
1048 | case QFMT_VFS_V0: | |
1049 | fmtname = "vfsv0"; | |
1050 | break; | |
1051 | case QFMT_VFS_V1: | |
1052 | fmtname = "vfsv1"; | |
1053 | break; | |
1054 | } | |
1055 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1056 | } | |
1057 | ||
1058 | if (sbi->s_qf_names[USRQUOTA]) | |
1059 | seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]); | |
1060 | ||
1061 | if (sbi->s_qf_names[GRPQUOTA]) | |
1062 | seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]); | |
1063 | ||
1064 | if (sbi->s_qf_names[PRJQUOTA]) | |
1065 | seq_show_option(seq, "prjjquota", sbi->s_qf_names[PRJQUOTA]); | |
1066 | #endif | |
1067 | } | |
1068 | ||
aff063e2 JK |
1069 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1070 | { | |
1071 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1072 | ||
6aefd93b JK |
1073 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1074 | if (test_opt(sbi, FORCE_FG_GC)) | |
1075 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1076 | else | |
1077 | seq_printf(seq, ",background_gc=%s", "on"); | |
1078 | } else { | |
696c018c | 1079 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1080 | } |
aff063e2 JK |
1081 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1082 | seq_puts(seq, ",disable_roll_forward"); | |
1083 | if (test_opt(sbi, DISCARD)) | |
1084 | seq_puts(seq, ",discard"); | |
1085 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1086 | seq_puts(seq, ",no_heap"); |
1087 | else | |
1088 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1089 | #ifdef CONFIG_F2FS_FS_XATTR |
1090 | if (test_opt(sbi, XATTR_USER)) | |
1091 | seq_puts(seq, ",user_xattr"); | |
1092 | else | |
1093 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1094 | if (test_opt(sbi, INLINE_XATTR)) |
1095 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1096 | else |
1097 | seq_puts(seq, ",noinline_xattr"); | |
6afc662e CY |
1098 | if (test_opt(sbi, INLINE_XATTR_SIZE)) |
1099 | seq_printf(seq, ",inline_xattr_size=%u", | |
1100 | sbi->inline_xattr_size); | |
aff063e2 JK |
1101 | #endif |
1102 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1103 | if (test_opt(sbi, POSIX_ACL)) | |
1104 | seq_puts(seq, ",acl"); | |
1105 | else | |
1106 | seq_puts(seq, ",noacl"); | |
1107 | #endif | |
1108 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1109 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1110 | if (test_opt(sbi, INLINE_DATA)) |
1111 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1112 | else |
1113 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1114 | if (test_opt(sbi, INLINE_DENTRY)) |
1115 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1116 | else |
1117 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1118 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1119 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1120 | if (test_opt(sbi, NOBARRIER)) |
1121 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1122 | if (test_opt(sbi, FASTBOOT)) |
1123 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1124 | if (test_opt(sbi, EXTENT_CACHE)) |
1125 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1126 | else |
1127 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1128 | if (test_opt(sbi, DATA_FLUSH)) |
1129 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1130 | |
1131 | seq_puts(seq, ",mode="); | |
1132 | if (test_opt(sbi, ADAPTIVE)) | |
1133 | seq_puts(seq, "adaptive"); | |
1134 | else if (test_opt(sbi, LFS)) | |
1135 | seq_puts(seq, "lfs"); | |
aff063e2 | 1136 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
ec91538d JK |
1137 | if (F2FS_IO_SIZE_BITS(sbi)) |
1138 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
1139 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1140 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
1141 | seq_printf(seq, ",fault_injection=%u", |
1142 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 1143 | #endif |
0abd675e | 1144 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1145 | if (test_opt(sbi, QUOTA)) |
1146 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1147 | if (test_opt(sbi, USRQUOTA)) |
1148 | seq_puts(seq, ",usrquota"); | |
1149 | if (test_opt(sbi, GRPQUOTA)) | |
1150 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1151 | if (test_opt(sbi, PRJQUOTA)) |
1152 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1153 | #endif |
4b2414d0 | 1154 | f2fs_show_quota_options(seq, sbi->sb); |
aff063e2 JK |
1155 | |
1156 | return 0; | |
1157 | } | |
1158 | ||
498c5e9f YH |
1159 | static void default_options(struct f2fs_sb_info *sbi) |
1160 | { | |
1161 | /* init some FS parameters */ | |
1162 | sbi->active_logs = NR_CURSEG_TYPE; | |
6afc662e | 1163 | sbi->inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
498c5e9f YH |
1164 | |
1165 | set_opt(sbi, BG_GC); | |
39133a50 | 1166 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1167 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1168 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1169 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1170 | set_opt(sbi, NOHEAP); |
1751e8a6 | 1171 | sbi->sb->s_flags |= SB_LAZYTIME; |
69e9e427 | 1172 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 1173 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
1174 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1175 | set_opt(sbi, DISCARD); | |
1176 | } else { | |
1177 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
1178 | } | |
498c5e9f YH |
1179 | |
1180 | #ifdef CONFIG_F2FS_FS_XATTR | |
1181 | set_opt(sbi, XATTR_USER); | |
1182 | #endif | |
1183 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1184 | set_opt(sbi, POSIX_ACL); | |
1185 | #endif | |
36dbd328 CY |
1186 | |
1187 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1188 | f2fs_build_fault_attr(sbi, 0); | |
1189 | #endif | |
498c5e9f YH |
1190 | } |
1191 | ||
ea676733 JK |
1192 | #ifdef CONFIG_QUOTA |
1193 | static int f2fs_enable_quotas(struct super_block *sb); | |
1194 | #endif | |
696c018c NJ |
1195 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1196 | { | |
1197 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1198 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1199 | unsigned long old_sb_flags; |
696c018c | 1200 | int err, active_logs; |
876dc59e GZ |
1201 | bool need_restart_gc = false; |
1202 | bool need_stop_gc = false; | |
9cd81ce3 | 1203 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
2443b8b3 CY |
1204 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1205 | struct f2fs_fault_info ffi = sbi->fault_info; | |
1206 | #endif | |
4b2414d0 CY |
1207 | #ifdef CONFIG_QUOTA |
1208 | int s_jquota_fmt; | |
1209 | char *s_qf_names[MAXQUOTAS]; | |
1210 | int i, j; | |
1211 | #endif | |
696c018c NJ |
1212 | |
1213 | /* | |
1214 | * Save the old mount options in case we | |
1215 | * need to restore them. | |
1216 | */ | |
1217 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1218 | old_sb_flags = sb->s_flags; |
696c018c NJ |
1219 | active_logs = sbi->active_logs; |
1220 | ||
4b2414d0 CY |
1221 | #ifdef CONFIG_QUOTA |
1222 | s_jquota_fmt = sbi->s_jquota_fmt; | |
1223 | for (i = 0; i < MAXQUOTAS; i++) { | |
1224 | if (sbi->s_qf_names[i]) { | |
1225 | s_qf_names[i] = kstrdup(sbi->s_qf_names[i], | |
1226 | GFP_KERNEL); | |
1227 | if (!s_qf_names[i]) { | |
1228 | for (j = 0; j < i; j++) | |
1229 | kfree(s_qf_names[j]); | |
1230 | return -ENOMEM; | |
1231 | } | |
1232 | } else { | |
1233 | s_qf_names[i] = NULL; | |
1234 | } | |
1235 | } | |
1236 | #endif | |
1237 | ||
df728b0f | 1238 | /* recover superblocks we couldn't write due to previous RO mount */ |
1751e8a6 | 1239 | if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { |
df728b0f JK |
1240 | err = f2fs_commit_super(sbi, false); |
1241 | f2fs_msg(sb, KERN_INFO, | |
1242 | "Try to recover all the superblocks, ret: %d", err); | |
1243 | if (!err) | |
1244 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1245 | } | |
1246 | ||
498c5e9f | 1247 | default_options(sbi); |
26666c8a | 1248 | |
696c018c NJ |
1249 | /* parse mount options */ |
1250 | err = parse_options(sb, data); | |
1251 | if (err) | |
1252 | goto restore_opts; | |
1253 | ||
1254 | /* | |
1255 | * Previous and new state of filesystem is RO, | |
876dc59e | 1256 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1257 | */ |
1751e8a6 | 1258 | if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) |
696c018c NJ |
1259 | goto skip; |
1260 | ||
ea676733 | 1261 | #ifdef CONFIG_QUOTA |
1751e8a6 | 1262 | if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { |
0abd675e CY |
1263 | err = dquot_suspend(sb, -1); |
1264 | if (err < 0) | |
1265 | goto restore_opts; | |
1266 | } else { | |
1267 | /* dquot_resume needs RW */ | |
1751e8a6 | 1268 | sb->s_flags &= ~SB_RDONLY; |
ea676733 JK |
1269 | if (sb_any_quota_suspended(sb)) { |
1270 | dquot_resume(sb, -1); | |
1271 | } else if (f2fs_sb_has_quota_ino(sb)) { | |
1272 | err = f2fs_enable_quotas(sb); | |
1273 | if (err) | |
1274 | goto restore_opts; | |
1275 | } | |
0abd675e | 1276 | } |
ea676733 | 1277 | #endif |
9cd81ce3 CY |
1278 | /* disallow enable/disable extent_cache dynamically */ |
1279 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1280 | err = -EINVAL; | |
1281 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1282 | "switch extent_cache option is not allowed"); | |
1283 | goto restore_opts; | |
1284 | } | |
1285 | ||
696c018c NJ |
1286 | /* |
1287 | * We stop the GC thread if FS is mounted as RO | |
1288 | * or if background_gc = off is passed in mount | |
1289 | * option. Also sync the filesystem. | |
1290 | */ | |
1751e8a6 | 1291 | if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) { |
696c018c NJ |
1292 | if (sbi->gc_thread) { |
1293 | stop_gc_thread(sbi); | |
876dc59e | 1294 | need_restart_gc = true; |
696c018c | 1295 | } |
aba291b3 | 1296 | } else if (!sbi->gc_thread) { |
696c018c NJ |
1297 | err = start_gc_thread(sbi); |
1298 | if (err) | |
1299 | goto restore_opts; | |
876dc59e GZ |
1300 | need_stop_gc = true; |
1301 | } | |
1302 | ||
1751e8a6 | 1303 | if (*flags & SB_RDONLY) { |
faa0e55b JK |
1304 | writeback_inodes_sb(sb, WB_REASON_SYNC); |
1305 | sync_inodes_sb(sb); | |
1306 | ||
1307 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1308 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1309 | f2fs_sync_fs(sb, 1); | |
1310 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1311 | } | |
1312 | ||
876dc59e GZ |
1313 | /* |
1314 | * We stop issue flush thread if FS is mounted as RO | |
1315 | * or if flush_merge is not passed in mount option. | |
1316 | */ | |
1751e8a6 | 1317 | if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { |
5eba8c5d JK |
1318 | clear_opt(sbi, FLUSH_MERGE); |
1319 | destroy_flush_cmd_control(sbi, false); | |
1320 | } else { | |
2163d198 GZ |
1321 | err = create_flush_cmd_control(sbi); |
1322 | if (err) | |
a688b9d9 | 1323 | goto restore_gc; |
696c018c NJ |
1324 | } |
1325 | skip: | |
4b2414d0 CY |
1326 | #ifdef CONFIG_QUOTA |
1327 | /* Release old quota file names */ | |
1328 | for (i = 0; i < MAXQUOTAS; i++) | |
1329 | kfree(s_qf_names[i]); | |
1330 | #endif | |
696c018c | 1331 | /* Update the POSIXACL Flag */ |
1751e8a6 LT |
1332 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
1333 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
df728b0f | 1334 | |
696c018c | 1335 | return 0; |
876dc59e GZ |
1336 | restore_gc: |
1337 | if (need_restart_gc) { | |
1338 | if (start_gc_thread(sbi)) | |
1339 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1340 | "background gc thread has stopped"); |
876dc59e GZ |
1341 | } else if (need_stop_gc) { |
1342 | stop_gc_thread(sbi); | |
1343 | } | |
696c018c | 1344 | restore_opts: |
4b2414d0 CY |
1345 | #ifdef CONFIG_QUOTA |
1346 | sbi->s_jquota_fmt = s_jquota_fmt; | |
1347 | for (i = 0; i < MAXQUOTAS; i++) { | |
1348 | kfree(sbi->s_qf_names[i]); | |
1349 | sbi->s_qf_names[i] = s_qf_names[i]; | |
1350 | } | |
1351 | #endif | |
696c018c NJ |
1352 | sbi->mount_opt = org_mount_opt; |
1353 | sbi->active_logs = active_logs; | |
0abd675e | 1354 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1355 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1356 | sbi->fault_info = ffi; | |
1357 | #endif | |
696c018c NJ |
1358 | return err; |
1359 | } | |
1360 | ||
0abd675e CY |
1361 | #ifdef CONFIG_QUOTA |
1362 | /* Read data from quotafile */ | |
1363 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1364 | size_t len, loff_t off) | |
1365 | { | |
1366 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1367 | struct address_space *mapping = inode->i_mapping; | |
1368 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1369 | int offset = off & (sb->s_blocksize - 1); | |
1370 | int tocopy; | |
1371 | size_t toread; | |
1372 | loff_t i_size = i_size_read(inode); | |
1373 | struct page *page; | |
1374 | char *kaddr; | |
1375 | ||
1376 | if (off > i_size) | |
1377 | return 0; | |
1378 | ||
1379 | if (off + len > i_size) | |
1380 | len = i_size - off; | |
1381 | toread = len; | |
1382 | while (toread > 0) { | |
1383 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1384 | repeat: | |
1385 | page = read_mapping_page(mapping, blkidx, NULL); | |
4e46a023 JK |
1386 | if (IS_ERR(page)) { |
1387 | if (PTR_ERR(page) == -ENOMEM) { | |
1388 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1389 | goto repeat; | |
1390 | } | |
0abd675e | 1391 | return PTR_ERR(page); |
4e46a023 | 1392 | } |
0abd675e CY |
1393 | |
1394 | lock_page(page); | |
1395 | ||
1396 | if (unlikely(page->mapping != mapping)) { | |
1397 | f2fs_put_page(page, 1); | |
1398 | goto repeat; | |
1399 | } | |
1400 | if (unlikely(!PageUptodate(page))) { | |
1401 | f2fs_put_page(page, 1); | |
1402 | return -EIO; | |
1403 | } | |
1404 | ||
1405 | kaddr = kmap_atomic(page); | |
1406 | memcpy(data, kaddr + offset, tocopy); | |
1407 | kunmap_atomic(kaddr); | |
1408 | f2fs_put_page(page, 1); | |
1409 | ||
1410 | offset = 0; | |
1411 | toread -= tocopy; | |
1412 | data += tocopy; | |
1413 | blkidx++; | |
1414 | } | |
1415 | return len; | |
1416 | } | |
1417 | ||
1418 | /* Write to quotafile */ | |
1419 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1420 | const char *data, size_t len, loff_t off) | |
1421 | { | |
1422 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1423 | struct address_space *mapping = inode->i_mapping; | |
1424 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1425 | int offset = off & (sb->s_blocksize - 1); | |
1426 | size_t towrite = len; | |
1427 | struct page *page; | |
1428 | char *kaddr; | |
1429 | int err = 0; | |
1430 | int tocopy; | |
1431 | ||
1432 | while (towrite > 0) { | |
1433 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1434 | towrite); | |
4e46a023 | 1435 | retry: |
0abd675e CY |
1436 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, |
1437 | &page, NULL); | |
4e46a023 JK |
1438 | if (unlikely(err)) { |
1439 | if (err == -ENOMEM) { | |
1440 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1441 | goto retry; | |
1442 | } | |
0abd675e | 1443 | break; |
4e46a023 | 1444 | } |
0abd675e CY |
1445 | |
1446 | kaddr = kmap_atomic(page); | |
1447 | memcpy(kaddr + offset, data, tocopy); | |
1448 | kunmap_atomic(kaddr); | |
1449 | flush_dcache_page(page); | |
1450 | ||
1451 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1452 | page, NULL); | |
1453 | offset = 0; | |
1454 | towrite -= tocopy; | |
1455 | off += tocopy; | |
1456 | data += tocopy; | |
1457 | cond_resched(); | |
1458 | } | |
1459 | ||
1460 | if (len == towrite) | |
6e5b5d41 | 1461 | return err; |
0abd675e CY |
1462 | inode->i_mtime = inode->i_ctime = current_time(inode); |
1463 | f2fs_mark_inode_dirty_sync(inode, false); | |
1464 | return len - towrite; | |
1465 | } | |
1466 | ||
1467 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1468 | { | |
1469 | return F2FS_I(inode)->i_dquot; | |
1470 | } | |
1471 | ||
1472 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1473 | { | |
1474 | return &F2FS_I(inode)->i_reserved_quota; | |
1475 | } | |
1476 | ||
4b2414d0 CY |
1477 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1478 | { | |
1479 | return dquot_quota_on_mount(sbi->sb, sbi->s_qf_names[type], | |
1480 | sbi->s_jquota_fmt, type); | |
1481 | } | |
1482 | ||
ea676733 | 1483 | int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) |
4b2414d0 | 1484 | { |
ea676733 JK |
1485 | int enabled = 0; |
1486 | int i, err; | |
1487 | ||
1488 | if (f2fs_sb_has_quota_ino(sbi->sb) && rdonly) { | |
1489 | err = f2fs_enable_quotas(sbi->sb); | |
1490 | if (err) { | |
1491 | f2fs_msg(sbi->sb, KERN_ERR, | |
1492 | "Cannot turn on quota_ino: %d", err); | |
1493 | return 0; | |
1494 | } | |
1495 | return 1; | |
1496 | } | |
4b2414d0 CY |
1497 | |
1498 | for (i = 0; i < MAXQUOTAS; i++) { | |
1499 | if (sbi->s_qf_names[i]) { | |
ea676733 JK |
1500 | err = f2fs_quota_on_mount(sbi, i); |
1501 | if (!err) { | |
1502 | enabled = 1; | |
1503 | continue; | |
1504 | } | |
1505 | f2fs_msg(sbi->sb, KERN_ERR, | |
1506 | "Cannot turn on quotas: %d on %d", err, i); | |
4b2414d0 CY |
1507 | } |
1508 | } | |
ea676733 JK |
1509 | return enabled; |
1510 | } | |
1511 | ||
1512 | static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, | |
1513 | unsigned int flags) | |
1514 | { | |
1515 | struct inode *qf_inode; | |
1516 | unsigned long qf_inum; | |
1517 | int err; | |
1518 | ||
1519 | BUG_ON(!f2fs_sb_has_quota_ino(sb)); | |
1520 | ||
1521 | qf_inum = f2fs_qf_ino(sb, type); | |
1522 | if (!qf_inum) | |
1523 | return -EPERM; | |
1524 | ||
1525 | qf_inode = f2fs_iget(sb, qf_inum); | |
1526 | if (IS_ERR(qf_inode)) { | |
1527 | f2fs_msg(sb, KERN_ERR, | |
1528 | "Bad quota inode %u:%lu", type, qf_inum); | |
1529 | return PTR_ERR(qf_inode); | |
1530 | } | |
1531 | ||
1532 | /* Don't account quota for quota files to avoid recursion */ | |
1533 | qf_inode->i_flags |= S_NOQUOTA; | |
1534 | err = dquot_enable(qf_inode, type, format_id, flags); | |
1535 | iput(qf_inode); | |
1536 | return err; | |
1537 | } | |
1538 | ||
1539 | static int f2fs_enable_quotas(struct super_block *sb) | |
1540 | { | |
1541 | int type, err = 0; | |
1542 | unsigned long qf_inum; | |
1543 | bool quota_mopt[MAXQUOTAS] = { | |
1544 | test_opt(F2FS_SB(sb), USRQUOTA), | |
1545 | test_opt(F2FS_SB(sb), GRPQUOTA), | |
1546 | test_opt(F2FS_SB(sb), PRJQUOTA), | |
1547 | }; | |
1548 | ||
1549 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; | |
1550 | for (type = 0; type < MAXQUOTAS; type++) { | |
1551 | qf_inum = f2fs_qf_ino(sb, type); | |
1552 | if (qf_inum) { | |
1553 | err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, | |
1554 | DQUOT_USAGE_ENABLED | | |
1555 | (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); | |
1556 | if (err) { | |
1557 | f2fs_msg(sb, KERN_ERR, | |
1558 | "Failed to enable quota tracking " | |
1559 | "(type=%d, err=%d). Please run " | |
1560 | "fsck to fix.", type, err); | |
1561 | for (type--; type >= 0; type--) | |
1562 | dquot_quota_off(sb, type); | |
1563 | return err; | |
1564 | } | |
4b2414d0 CY |
1565 | } |
1566 | } | |
ea676733 | 1567 | return 0; |
4b2414d0 CY |
1568 | } |
1569 | ||
0abd675e CY |
1570 | static int f2fs_quota_sync(struct super_block *sb, int type) |
1571 | { | |
1572 | struct quota_info *dqopt = sb_dqopt(sb); | |
1573 | int cnt; | |
1574 | int ret; | |
1575 | ||
1576 | ret = dquot_writeback_dquots(sb, type); | |
1577 | if (ret) | |
1578 | return ret; | |
1579 | ||
1580 | /* | |
1581 | * Now when everything is written we can discard the pagecache so | |
1582 | * that userspace sees the changes. | |
1583 | */ | |
1584 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1585 | if (type != -1 && cnt != type) | |
1586 | continue; | |
1587 | if (!sb_has_quota_active(sb, cnt)) | |
1588 | continue; | |
1589 | ||
1590 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1591 | if (ret) | |
1592 | return ret; | |
1593 | ||
1594 | inode_lock(dqopt->files[cnt]); | |
1595 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1596 | inode_unlock(dqopt->files[cnt]); | |
1597 | } | |
1598 | return 0; | |
1599 | } | |
1600 | ||
1601 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1602 | const struct path *path) | |
1603 | { | |
1604 | struct inode *inode; | |
1605 | int err; | |
1606 | ||
9a20d391 | 1607 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1608 | if (err) |
1609 | return err; | |
1610 | ||
1611 | err = dquot_quota_on(sb, type, format_id, path); | |
1612 | if (err) | |
1613 | return err; | |
1614 | ||
1615 | inode = d_inode(path->dentry); | |
1616 | ||
1617 | inode_lock(inode); | |
1618 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1619 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1620 | S_NOATIME | S_IMMUTABLE); | |
1621 | inode_unlock(inode); | |
1622 | f2fs_mark_inode_dirty_sync(inode, false); | |
1623 | ||
1624 | return 0; | |
1625 | } | |
1626 | ||
1627 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1628 | { | |
1629 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1630 | int err; | |
1631 | ||
1632 | if (!inode || !igrab(inode)) | |
1633 | return dquot_quota_off(sb, type); | |
1634 | ||
9a20d391 | 1635 | f2fs_quota_sync(sb, type); |
0abd675e CY |
1636 | |
1637 | err = dquot_quota_off(sb, type); | |
ea676733 | 1638 | if (err || f2fs_sb_has_quota_ino(sb)) |
0abd675e CY |
1639 | goto out_put; |
1640 | ||
1641 | inode_lock(inode); | |
1642 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1643 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1644 | inode_unlock(inode); | |
1645 | f2fs_mark_inode_dirty_sync(inode, false); | |
1646 | out_put: | |
1647 | iput(inode); | |
1648 | return err; | |
1649 | } | |
1650 | ||
4b2414d0 | 1651 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1652 | { |
1653 | int type; | |
1654 | ||
1655 | for (type = 0; type < MAXQUOTAS; type++) | |
1656 | f2fs_quota_off(sb, type); | |
1657 | } | |
1658 | ||
5c57132e CY |
1659 | int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
1660 | { | |
1661 | *projid = F2FS_I(inode)->i_projid; | |
1662 | return 0; | |
1663 | } | |
1664 | ||
0abd675e CY |
1665 | static const struct dquot_operations f2fs_quota_operations = { |
1666 | .get_reserved_space = f2fs_get_reserved_space, | |
1667 | .write_dquot = dquot_commit, | |
1668 | .acquire_dquot = dquot_acquire, | |
1669 | .release_dquot = dquot_release, | |
1670 | .mark_dirty = dquot_mark_dquot_dirty, | |
1671 | .write_info = dquot_commit_info, | |
1672 | .alloc_dquot = dquot_alloc, | |
1673 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1674 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1675 | .get_next_id = dquot_get_next_id, |
1676 | }; | |
1677 | ||
1678 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1679 | .quota_on = f2fs_quota_on, | |
1680 | .quota_off = f2fs_quota_off, | |
1681 | .quota_sync = f2fs_quota_sync, | |
1682 | .get_state = dquot_get_state, | |
1683 | .set_info = dquot_set_dqinfo, | |
1684 | .get_dqblk = dquot_get_dqblk, | |
1685 | .set_dqblk = dquot_set_dqblk, | |
1686 | .get_nextdqblk = dquot_get_next_dqblk, | |
1687 | }; | |
1688 | #else | |
4b2414d0 | 1689 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1690 | { |
1691 | } | |
1692 | #endif | |
1693 | ||
f62fc9f9 | 1694 | static const struct super_operations f2fs_sops = { |
aff063e2 | 1695 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 1696 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1697 | .destroy_inode = f2fs_destroy_inode, |
1698 | .write_inode = f2fs_write_inode, | |
b3783873 | 1699 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1700 | .show_options = f2fs_show_options, |
0abd675e CY |
1701 | #ifdef CONFIG_QUOTA |
1702 | .quota_read = f2fs_quota_read, | |
1703 | .quota_write = f2fs_quota_write, | |
1704 | .get_dquots = f2fs_get_dquots, | |
1705 | #endif | |
aff063e2 JK |
1706 | .evict_inode = f2fs_evict_inode, |
1707 | .put_super = f2fs_put_super, | |
1708 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1709 | .freeze_fs = f2fs_freeze, |
1710 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1711 | .statfs = f2fs_statfs, |
696c018c | 1712 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1713 | }; |
1714 | ||
0b81d077 JK |
1715 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1716 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1717 | { | |
1718 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1719 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1720 | ctx, len, NULL); | |
1721 | } | |
1722 | ||
1723 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1724 | void *fs_data) | |
1725 | { | |
1726 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1727 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1728 | ctx, len, fs_data, XATTR_CREATE); | |
1729 | } | |
1730 | ||
1731 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1732 | { | |
1733 | return S_ISLNK(inode->i_mode) ? | |
1734 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1735 | } | |
1736 | ||
6f69f0ed | 1737 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1738 | .key_prefix = "f2fs:", |
0b81d077 JK |
1739 | .get_context = f2fs_get_context, |
1740 | .set_context = f2fs_set_context, | |
0b81d077 JK |
1741 | .empty_dir = f2fs_empty_dir, |
1742 | .max_namelen = f2fs_max_namelen, | |
1743 | }; | |
0b81d077 JK |
1744 | #endif |
1745 | ||
aff063e2 JK |
1746 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1747 | u64 ino, u32 generation) | |
1748 | { | |
1749 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1750 | struct inode *inode; | |
1751 | ||
d6b7d4b3 | 1752 | if (check_nid_range(sbi, ino)) |
910bb12d | 1753 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1754 | |
1755 | /* | |
1756 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1757 | * However f2fs_iget currently does appropriate checks to handle stale | |
1758 | * inodes so everything is OK. | |
1759 | */ | |
1760 | inode = f2fs_iget(sb, ino); | |
1761 | if (IS_ERR(inode)) | |
1762 | return ERR_CAST(inode); | |
6bacf52f | 1763 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1764 | /* we didn't find the right inode.. */ |
1765 | iput(inode); | |
1766 | return ERR_PTR(-ESTALE); | |
1767 | } | |
1768 | return inode; | |
1769 | } | |
1770 | ||
1771 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1772 | int fh_len, int fh_type) | |
1773 | { | |
1774 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1775 | f2fs_nfs_get_inode); | |
1776 | } | |
1777 | ||
1778 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1779 | int fh_len, int fh_type) | |
1780 | { | |
1781 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1782 | f2fs_nfs_get_inode); | |
1783 | } | |
1784 | ||
1785 | static const struct export_operations f2fs_export_ops = { | |
1786 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1787 | .fh_to_parent = f2fs_fh_to_parent, | |
1788 | .get_parent = f2fs_get_parent, | |
1789 | }; | |
1790 | ||
e0afc4d6 | 1791 | static loff_t max_file_blocks(void) |
aff063e2 | 1792 | { |
7a2af766 | 1793 | loff_t result = 0; |
aff063e2 JK |
1794 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1795 | ||
7a2af766 CY |
1796 | /* |
1797 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
6afc662e | 1798 | * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more |
7a2af766 CY |
1799 | * space in inode.i_addr, it will be more safe to reassign |
1800 | * result as zero. | |
1801 | */ | |
1802 | ||
aff063e2 JK |
1803 | /* two direct node blocks */ |
1804 | result += (leaf_count * 2); | |
1805 | ||
1806 | /* two indirect node blocks */ | |
1807 | leaf_count *= NIDS_PER_BLOCK; | |
1808 | result += (leaf_count * 2); | |
1809 | ||
1810 | /* one double indirect node block */ | |
1811 | leaf_count *= NIDS_PER_BLOCK; | |
1812 | result += leaf_count; | |
1813 | ||
aff063e2 JK |
1814 | return result; |
1815 | } | |
1816 | ||
fd694733 JK |
1817 | static int __f2fs_commit_super(struct buffer_head *bh, |
1818 | struct f2fs_super_block *super) | |
1819 | { | |
1820 | lock_buffer(bh); | |
1821 | if (super) | |
1822 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
1823 | set_buffer_uptodate(bh); | |
1824 | set_buffer_dirty(bh); | |
1825 | unlock_buffer(bh); | |
1826 | ||
1827 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1828 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1829 | } |
1830 | ||
df728b0f | 1831 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1832 | struct buffer_head *bh) |
9a59b62f | 1833 | { |
fd694733 JK |
1834 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1835 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1836 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1837 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1838 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1839 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1840 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1841 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1842 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1843 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1844 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1845 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1846 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1847 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1848 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1849 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1850 | u64 main_end_blkaddr = main_blkaddr + |
1851 | (segment_count_main << log_blocks_per_seg); | |
1852 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1853 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1854 | |
1855 | if (segment0_blkaddr != cp_blkaddr) { | |
1856 | f2fs_msg(sb, KERN_INFO, | |
1857 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1858 | segment0_blkaddr, cp_blkaddr); | |
1859 | return true; | |
1860 | } | |
1861 | ||
1862 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1863 | sit_blkaddr) { | |
1864 | f2fs_msg(sb, KERN_INFO, | |
1865 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1866 | cp_blkaddr, sit_blkaddr, | |
1867 | segment_count_ckpt << log_blocks_per_seg); | |
1868 | return true; | |
1869 | } | |
1870 | ||
1871 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1872 | nat_blkaddr) { | |
1873 | f2fs_msg(sb, KERN_INFO, | |
1874 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1875 | sit_blkaddr, nat_blkaddr, | |
1876 | segment_count_sit << log_blocks_per_seg); | |
1877 | return true; | |
1878 | } | |
1879 | ||
1880 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1881 | ssa_blkaddr) { | |
1882 | f2fs_msg(sb, KERN_INFO, | |
1883 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1884 | nat_blkaddr, ssa_blkaddr, | |
1885 | segment_count_nat << log_blocks_per_seg); | |
1886 | return true; | |
1887 | } | |
1888 | ||
1889 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
1890 | main_blkaddr) { | |
1891 | f2fs_msg(sb, KERN_INFO, | |
1892 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
1893 | ssa_blkaddr, main_blkaddr, | |
1894 | segment_count_ssa << log_blocks_per_seg); | |
1895 | return true; | |
1896 | } | |
1897 | ||
fd694733 | 1898 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 1899 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 1900 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 1901 | main_blkaddr, |
fd694733 JK |
1902 | segment0_blkaddr + |
1903 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
1904 | segment_count_main << log_blocks_per_seg); |
1905 | return true; | |
fd694733 JK |
1906 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
1907 | int err = 0; | |
1908 | char *res; | |
1909 | ||
1910 | /* fix in-memory information all the time */ | |
1911 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
1912 | segment0_blkaddr) >> log_blocks_per_seg); | |
1913 | ||
1914 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 1915 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
1916 | res = "internally"; |
1917 | } else { | |
1918 | err = __f2fs_commit_super(bh, NULL); | |
1919 | res = err ? "failed" : "done"; | |
1920 | } | |
1921 | f2fs_msg(sb, KERN_INFO, | |
1922 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
1923 | res, main_blkaddr, | |
1924 | segment0_blkaddr + | |
1925 | (segment_count << log_blocks_per_seg), | |
1926 | segment_count_main << log_blocks_per_seg); | |
1927 | if (err) | |
1928 | return true; | |
9a59b62f | 1929 | } |
9a59b62f CY |
1930 | return false; |
1931 | } | |
1932 | ||
df728b0f | 1933 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 1934 | struct buffer_head *bh) |
aff063e2 | 1935 | { |
fd694733 JK |
1936 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1937 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1938 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
1939 | unsigned int blocksize; |
1940 | ||
a07ef784 NJ |
1941 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
1942 | f2fs_msg(sb, KERN_INFO, | |
1943 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
1944 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 1945 | return 1; |
a07ef784 | 1946 | } |
aff063e2 | 1947 | |
5c9b4692 | 1948 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 1949 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 1950 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 1951 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 1952 | PAGE_SIZE); |
5c9b4692 | 1953 | return 1; |
1954 | } | |
1955 | ||
aff063e2 JK |
1956 | /* Currently, support only 4KB block size */ |
1957 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 1958 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
1959 | f2fs_msg(sb, KERN_INFO, |
1960 | "Invalid blocksize (%u), supports only 4KB\n", | |
1961 | blocksize); | |
aff063e2 | 1962 | return 1; |
a07ef784 | 1963 | } |
5c9b4692 | 1964 | |
9a59b62f CY |
1965 | /* check log blocks per segment */ |
1966 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
1967 | f2fs_msg(sb, KERN_INFO, | |
1968 | "Invalid log blocks per segment (%u)\n", | |
1969 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
1970 | return 1; | |
1971 | } | |
1972 | ||
55cf9cb6 CY |
1973 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
1974 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
1975 | F2FS_MAX_LOG_SECTOR_SIZE || | |
1976 | le32_to_cpu(raw_super->log_sectorsize) < | |
1977 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
1978 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
1979 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1980 | return 1; |
a07ef784 | 1981 | } |
55cf9cb6 CY |
1982 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
1983 | le32_to_cpu(raw_super->log_sectorsize) != | |
1984 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
1985 | f2fs_msg(sb, KERN_INFO, | |
1986 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
1987 | le32_to_cpu(raw_super->log_sectors_per_block), | |
1988 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1989 | return 1; |
a07ef784 | 1990 | } |
9a59b62f CY |
1991 | |
1992 | /* check reserved ino info */ | |
1993 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
1994 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
1995 | le32_to_cpu(raw_super->root_ino) != 3) { | |
1996 | f2fs_msg(sb, KERN_INFO, | |
1997 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
1998 | le32_to_cpu(raw_super->node_ino), | |
1999 | le32_to_cpu(raw_super->meta_ino), | |
2000 | le32_to_cpu(raw_super->root_ino)); | |
2001 | return 1; | |
2002 | } | |
2003 | ||
b9dd4618 JQ |
2004 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
2005 | f2fs_msg(sb, KERN_INFO, | |
2006 | "Invalid segment count (%u)", | |
2007 | le32_to_cpu(raw_super->segment_count)); | |
2008 | return 1; | |
2009 | } | |
2010 | ||
9a59b62f | 2011 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 2012 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
2013 | return 1; |
2014 | ||
aff063e2 JK |
2015 | return 0; |
2016 | } | |
2017 | ||
984ec63c | 2018 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
2019 | { |
2020 | unsigned int total, fsmeta; | |
577e3495 JK |
2021 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
2022 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 2023 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
2024 | unsigned int main_segs, blocks_per_seg; |
2025 | int i; | |
aff063e2 JK |
2026 | |
2027 | total = le32_to_cpu(raw_super->segment_count); | |
2028 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
2029 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
2030 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
2031 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
2032 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
2033 | ||
6bacf52f | 2034 | if (unlikely(fsmeta >= total)) |
aff063e2 | 2035 | return 1; |
577e3495 | 2036 | |
2040fce8 JK |
2037 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
2038 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
2039 | ||
2040 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
2041 | ovp_segments == 0 || reserved_segments == 0)) { | |
2042 | f2fs_msg(sbi->sb, KERN_ERR, | |
2043 | "Wrong layout: check mkfs.f2fs version"); | |
2044 | return 1; | |
2045 | } | |
2046 | ||
15d3042a JQ |
2047 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
2048 | blocks_per_seg = sbi->blocks_per_seg; | |
2049 | ||
2050 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
2051 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
2052 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
2053 | return 1; | |
2054 | } | |
2055 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
2056 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
2057 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
2058 | return 1; | |
2059 | } | |
2060 | ||
1e968fdf | 2061 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
2062 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
2063 | return 1; | |
2064 | } | |
aff063e2 JK |
2065 | return 0; |
2066 | } | |
2067 | ||
2068 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
2069 | { | |
2070 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 2071 | int i, j; |
aff063e2 JK |
2072 | |
2073 | sbi->log_sectors_per_block = | |
2074 | le32_to_cpu(raw_super->log_sectors_per_block); | |
2075 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
2076 | sbi->blocksize = 1 << sbi->log_blocksize; | |
2077 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2078 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
2079 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2080 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2081 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
2082 | sbi->total_node_count = | |
2083 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
2084 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
2085 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
2086 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
2087 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 2088 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 2089 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 2090 | |
ab9fa662 | 2091 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 2092 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 2093 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 2094 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 2095 | |
35782b23 JK |
2096 | for (i = 0; i < NR_COUNT_TYPE; i++) |
2097 | atomic_set(&sbi->nr_pages[i], 0); | |
2098 | ||
687de7f1 JK |
2099 | atomic_set(&sbi->wb_sync_req, 0); |
2100 | ||
2658e50d JK |
2101 | INIT_LIST_HEAD(&sbi->s_list); |
2102 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
2103 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
2104 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
2105 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 2106 | spin_lock_init(&sbi->cp_lock); |
1228b482 CY |
2107 | |
2108 | sbi->dirty_device = 0; | |
2109 | spin_lock_init(&sbi->dev_lock); | |
aff063e2 JK |
2110 | } |
2111 | ||
523be8a6 JK |
2112 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
2113 | { | |
35782b23 | 2114 | int err; |
41382ec4 | 2115 | |
513c5f37 JK |
2116 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
2117 | if (err) | |
2118 | return err; | |
2119 | ||
2120 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 2121 | GFP_KERNEL); |
523be8a6 JK |
2122 | } |
2123 | ||
178053e2 | 2124 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 2125 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 2126 | { |
3c62be17 | 2127 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
2128 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
2129 | sector_t sector = 0; | |
2130 | struct blk_zone *zones; | |
2131 | unsigned int i, nr_zones; | |
2132 | unsigned int n = 0; | |
2133 | int err = -EIO; | |
2134 | ||
2135 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
2136 | return 0; | |
2137 | ||
3c62be17 | 2138 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 2139 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 2140 | return -EINVAL; |
f99e8648 | 2141 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
2142 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2143 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2144 | return -EINVAL; | |
178053e2 | 2145 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2146 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2147 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2148 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2149 | FDEV(devi).nr_blkz++; |
178053e2 | 2150 | |
3c62be17 JK |
2151 | FDEV(devi).blkz_type = kmalloc(FDEV(devi).nr_blkz, GFP_KERNEL); |
2152 | if (!FDEV(devi).blkz_type) | |
178053e2 DLM |
2153 | return -ENOMEM; |
2154 | ||
2155 | #define F2FS_REPORT_NR_ZONES 4096 | |
2156 | ||
2157 | zones = kcalloc(F2FS_REPORT_NR_ZONES, sizeof(struct blk_zone), | |
2158 | GFP_KERNEL); | |
2159 | if (!zones) | |
2160 | return -ENOMEM; | |
2161 | ||
2162 | /* Get block zones type */ | |
2163 | while (zones && sector < nr_sectors) { | |
2164 | ||
2165 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2166 | err = blkdev_report_zones(bdev, sector, | |
2167 | zones, &nr_zones, | |
2168 | GFP_KERNEL); | |
2169 | if (err) | |
2170 | break; | |
2171 | if (!nr_zones) { | |
2172 | err = -EIO; | |
2173 | break; | |
2174 | } | |
2175 | ||
2176 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2177 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2178 | sector += zones[i].len; |
2179 | n++; | |
2180 | } | |
2181 | } | |
2182 | ||
2183 | kfree(zones); | |
2184 | ||
2185 | return err; | |
2186 | } | |
2187 | #endif | |
2188 | ||
9076a75f GZ |
2189 | /* |
2190 | * Read f2fs raw super block. | |
2b39e907 SL |
2191 | * Because we have two copies of super block, so read both of them |
2192 | * to get the first valid one. If any one of them is broken, we pass | |
2193 | * them recovery flag back to the caller. | |
9076a75f | 2194 | */ |
df728b0f | 2195 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2196 | struct f2fs_super_block **raw_super, |
e8240f65 | 2197 | int *valid_super_block, int *recovery) |
14d7e9de | 2198 | { |
df728b0f | 2199 | struct super_block *sb = sbi->sb; |
2b39e907 | 2200 | int block; |
e8240f65 | 2201 | struct buffer_head *bh; |
fd694733 | 2202 | struct f2fs_super_block *super; |
da554e48 | 2203 | int err = 0; |
14d7e9de | 2204 | |
b39f0de2 YH |
2205 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2206 | if (!super) | |
2207 | return -ENOMEM; | |
2b39e907 SL |
2208 | |
2209 | for (block = 0; block < 2; block++) { | |
2210 | bh = sb_bread(sb, block); | |
2211 | if (!bh) { | |
2212 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2213 | block + 1); |
2b39e907 SL |
2214 | err = -EIO; |
2215 | continue; | |
2216 | } | |
14d7e9de | 2217 | |
2b39e907 | 2218 | /* sanity checking of raw super */ |
df728b0f | 2219 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
2220 | f2fs_msg(sb, KERN_ERR, |
2221 | "Can't find valid F2FS filesystem in %dth superblock", | |
2222 | block + 1); | |
2223 | err = -EINVAL; | |
2224 | brelse(bh); | |
2225 | continue; | |
2226 | } | |
14d7e9de | 2227 | |
2b39e907 | 2228 | if (!*raw_super) { |
fd694733 JK |
2229 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2230 | sizeof(*super)); | |
2b39e907 SL |
2231 | *valid_super_block = block; |
2232 | *raw_super = super; | |
2233 | } | |
2234 | brelse(bh); | |
da554e48 | 2235 | } |
2236 | ||
2b39e907 SL |
2237 | /* Fail to read any one of the superblocks*/ |
2238 | if (err < 0) | |
2239 | *recovery = 1; | |
da554e48 | 2240 | |
da554e48 | 2241 | /* No valid superblock */ |
2b39e907 | 2242 | if (!*raw_super) |
b39f0de2 | 2243 | kfree(super); |
2b39e907 SL |
2244 | else |
2245 | err = 0; | |
da554e48 | 2246 | |
2b39e907 | 2247 | return err; |
14d7e9de | 2248 | } |
2249 | ||
fd694733 | 2250 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2251 | { |
5d909cdb | 2252 | struct buffer_head *bh; |
26d815ad JK |
2253 | int err; |
2254 | ||
df728b0f JK |
2255 | if ((recover && f2fs_readonly(sbi->sb)) || |
2256 | bdev_read_only(sbi->sb->s_bdev)) { | |
2257 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2258 | return -EROFS; |
df728b0f | 2259 | } |
f2353d7b | 2260 | |
fd694733 JK |
2261 | /* write back-up superblock first */ |
2262 | bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); | |
5d909cdb JK |
2263 | if (!bh) |
2264 | return -EIO; | |
fd694733 | 2265 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2266 | brelse(bh); |
c5bda1c8 CY |
2267 | |
2268 | /* if we are in recovery path, skip writing valid superblock */ | |
2269 | if (recover || err) | |
5d909cdb | 2270 | return err; |
26d815ad JK |
2271 | |
2272 | /* write current valid superblock */ | |
fd694733 JK |
2273 | bh = sb_getblk(sbi->sb, sbi->valid_super_block); |
2274 | if (!bh) | |
2275 | return -EIO; | |
2276 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2277 | brelse(bh); | |
2278 | return err; | |
26d815ad JK |
2279 | } |
2280 | ||
3c62be17 JK |
2281 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2282 | { | |
2283 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2284 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2285 | int i; |
2286 | ||
7bb3a371 MS |
2287 | /* Initialize single device information */ |
2288 | if (!RDEV(0).path[0]) { | |
2289 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2290 | return 0; |
7bb3a371 MS |
2291 | max_devices = 1; |
2292 | } | |
3c62be17 | 2293 | |
7bb3a371 MS |
2294 | /* |
2295 | * Initialize multiple devices information, or single | |
2296 | * zoned block device information. | |
2297 | */ | |
2298 | sbi->devs = kcalloc(max_devices, sizeof(struct f2fs_dev_info), | |
2299 | GFP_KERNEL); | |
2300 | if (!sbi->devs) | |
2301 | return -ENOMEM; | |
3c62be17 | 2302 | |
7bb3a371 | 2303 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2304 | |
7bb3a371 MS |
2305 | if (i > 0 && !RDEV(i).path[0]) |
2306 | break; | |
2307 | ||
2308 | if (max_devices == 1) { | |
2309 | /* Single zoned block device mount */ | |
2310 | FDEV(0).bdev = | |
2311 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2312 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2313 | } else { |
2314 | /* Multi-device mount */ | |
2315 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2316 | FDEV(i).total_segments = | |
2317 | le32_to_cpu(RDEV(i).total_segments); | |
2318 | if (i == 0) { | |
2319 | FDEV(i).start_blk = 0; | |
2320 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2321 | (FDEV(i).total_segments << | |
2322 | sbi->log_blocks_per_seg) - 1 + | |
2323 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2324 | } else { | |
2325 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2326 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2327 | (FDEV(i).total_segments << | |
2328 | sbi->log_blocks_per_seg) - 1; | |
2329 | } | |
2330 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2331 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2332 | } |
3c62be17 JK |
2333 | if (IS_ERR(FDEV(i).bdev)) |
2334 | return PTR_ERR(FDEV(i).bdev); | |
2335 | ||
2336 | /* to release errored devices */ | |
2337 | sbi->s_ndevs = i + 1; | |
2338 | ||
2339 | #ifdef CONFIG_BLK_DEV_ZONED | |
2340 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
2341 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
2342 | f2fs_msg(sbi->sb, KERN_ERR, | |
2343 | "Zoned block device feature not enabled\n"); | |
2344 | return -EINVAL; | |
2345 | } | |
2346 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
2347 | if (init_blkz_info(sbi, i)) { | |
2348 | f2fs_msg(sbi->sb, KERN_ERR, | |
2349 | "Failed to initialize F2FS blkzone information"); | |
2350 | return -EINVAL; | |
2351 | } | |
7bb3a371 MS |
2352 | if (max_devices == 1) |
2353 | break; | |
3c62be17 JK |
2354 | f2fs_msg(sbi->sb, KERN_INFO, |
2355 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
2356 | i, FDEV(i).path, | |
2357 | FDEV(i).total_segments, | |
2358 | FDEV(i).start_blk, FDEV(i).end_blk, | |
2359 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
2360 | "Host-aware" : "Host-managed"); | |
2361 | continue; | |
2362 | } | |
2363 | #endif | |
2364 | f2fs_msg(sbi->sb, KERN_INFO, | |
2365 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
2366 | i, FDEV(i).path, | |
2367 | FDEV(i).total_segments, | |
2368 | FDEV(i).start_blk, FDEV(i).end_blk); | |
2369 | } | |
0a595eba JK |
2370 | f2fs_msg(sbi->sb, KERN_INFO, |
2371 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
2372 | return 0; |
2373 | } | |
2374 | ||
aff063e2 JK |
2375 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
2376 | { | |
2377 | struct f2fs_sb_info *sbi; | |
da554e48 | 2378 | struct f2fs_super_block *raw_super; |
aff063e2 | 2379 | struct inode *root; |
99e3e858 | 2380 | int err; |
2adc3505 | 2381 | bool retry = true, need_fsck = false; |
dabc4a5c | 2382 | char *options = NULL; |
e8240f65 | 2383 | int recovery, i, valid_super_block; |
8f1dbbbb | 2384 | struct curseg_info *seg_i; |
aff063e2 | 2385 | |
ed2e621a | 2386 | try_onemore: |
da554e48 | 2387 | err = -EINVAL; |
2388 | raw_super = NULL; | |
e8240f65 | 2389 | valid_super_block = -1; |
da554e48 | 2390 | recovery = 0; |
2391 | ||
aff063e2 JK |
2392 | /* allocate memory for f2fs-specific super block info */ |
2393 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
2394 | if (!sbi) | |
2395 | return -ENOMEM; | |
2396 | ||
df728b0f JK |
2397 | sbi->sb = sb; |
2398 | ||
43b6573b KM |
2399 | /* Load the checksum driver */ |
2400 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
2401 | if (IS_ERR(sbi->s_chksum_driver)) { | |
2402 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
2403 | err = PTR_ERR(sbi->s_chksum_driver); | |
2404 | sbi->s_chksum_driver = NULL; | |
2405 | goto free_sbi; | |
2406 | } | |
2407 | ||
ff9234ad | 2408 | /* set a block size */ |
6bacf52f | 2409 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 2410 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 2411 | goto free_sbi; |
a07ef784 | 2412 | } |
aff063e2 | 2413 | |
df728b0f | 2414 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 2415 | &recovery); |
9076a75f GZ |
2416 | if (err) |
2417 | goto free_sbi; | |
2418 | ||
5fb08372 | 2419 | sb->s_fs_info = sbi; |
52763a4b JK |
2420 | sbi->raw_super = raw_super; |
2421 | ||
704956ec CY |
2422 | /* precompute checksum seed for metadata */ |
2423 | if (f2fs_sb_has_inode_chksum(sb)) | |
2424 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, | |
2425 | sizeof(raw_super->uuid)); | |
2426 | ||
d1b959c8 DLM |
2427 | /* |
2428 | * The BLKZONED feature indicates that the drive was formatted with | |
2429 | * zone alignment optimization. This is optional for host-aware | |
2430 | * devices, but mandatory for host-managed zoned block devices. | |
2431 | */ | |
2432 | #ifndef CONFIG_BLK_DEV_ZONED | |
2433 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
2434 | f2fs_msg(sb, KERN_ERR, | |
2435 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2436 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2437 | goto free_sb_buf; |
2438 | } | |
d1b959c8 | 2439 | #endif |
498c5e9f | 2440 | default_options(sbi); |
aff063e2 | 2441 | /* parse mount options */ |
dabc4a5c JK |
2442 | options = kstrdup((const char *)data, GFP_KERNEL); |
2443 | if (data && !options) { | |
2444 | err = -ENOMEM; | |
aff063e2 | 2445 | goto free_sb_buf; |
dabc4a5c JK |
2446 | } |
2447 | ||
2448 | err = parse_options(sb, options); | |
2449 | if (err) | |
2450 | goto free_options; | |
aff063e2 | 2451 | |
e0afc4d6 CY |
2452 | sbi->max_file_blocks = max_file_blocks(); |
2453 | sb->s_maxbytes = sbi->max_file_blocks << | |
2454 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2455 | sb->s_max_links = F2FS_LINK_MAX; |
2456 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2457 | ||
0abd675e CY |
2458 | #ifdef CONFIG_QUOTA |
2459 | sb->dq_op = &f2fs_quota_operations; | |
ea676733 JK |
2460 | if (f2fs_sb_has_quota_ino(sb)) |
2461 | sb->s_qcop = &dquot_quotactl_sysfile_ops; | |
2462 | else | |
2463 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2464 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
0abd675e CY |
2465 | #endif |
2466 | ||
aff063e2 | 2467 | sb->s_op = &f2fs_sops; |
ffcc4182 | 2468 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
0b81d077 | 2469 | sb->s_cop = &f2fs_cryptops; |
ffcc4182 | 2470 | #endif |
aff063e2 JK |
2471 | sb->s_xattr = f2fs_xattr_handlers; |
2472 | sb->s_export_op = &f2fs_export_ops; | |
2473 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 | 2474 | sb->s_time_gran = 1; |
1751e8a6 LT |
2475 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
2476 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
85787090 | 2477 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
aff063e2 JK |
2478 | |
2479 | /* init f2fs-specific super block info */ | |
e8240f65 | 2480 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2481 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2482 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2483 | init_rwsem(&sbi->node_write); |
59c9081b | 2484 | init_rwsem(&sbi->node_change); |
315df839 JK |
2485 | |
2486 | /* disallow all the data/node/meta page writes */ | |
2487 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2488 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2489 | |
b0af6d49 CY |
2490 | /* init iostat info */ |
2491 | spin_lock_init(&sbi->iostat_lock); | |
2492 | sbi->iostat_enable = false; | |
2493 | ||
458e6197 | 2494 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2495 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2496 | int j; | |
2497 | ||
2498 | sbi->write_io[i] = kmalloc(n * sizeof(struct f2fs_bio_info), | |
2499 | GFP_KERNEL); | |
b63def91 CJ |
2500 | if (!sbi->write_io[i]) { |
2501 | err = -ENOMEM; | |
a912b54d | 2502 | goto free_options; |
b63def91 | 2503 | } |
a912b54d JK |
2504 | |
2505 | for (j = HOT; j < n; j++) { | |
2506 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2507 | sbi->write_io[i][j].sbi = sbi; | |
2508 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2509 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2510 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2511 | } |
458e6197 | 2512 | } |
971767ca | 2513 | |
b873b798 | 2514 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2515 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2516 | init_sb_info(sbi); |
2517 | ||
523be8a6 JK |
2518 | err = init_percpu_info(sbi); |
2519 | if (err) | |
2520 | goto free_options; | |
2521 | ||
0a595eba JK |
2522 | if (F2FS_IO_SIZE(sbi) > 1) { |
2523 | sbi->write_io_dummy = | |
a3ebfe4f | 2524 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2525 | if (!sbi->write_io_dummy) { |
2526 | err = -ENOMEM; | |
0a595eba | 2527 | goto free_options; |
1727f317 | 2528 | } |
0a595eba JK |
2529 | } |
2530 | ||
aff063e2 JK |
2531 | /* get an inode for meta space */ |
2532 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2533 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2534 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2535 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2536 | goto free_io_dummy; |
aff063e2 JK |
2537 | } |
2538 | ||
2539 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2540 | if (err) { |
2541 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2542 | goto free_meta_inode; |
a07ef784 | 2543 | } |
aff063e2 | 2544 | |
3c62be17 JK |
2545 | /* Initialize device list */ |
2546 | err = f2fs_scan_devices(sbi); | |
2547 | if (err) { | |
2548 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2549 | goto free_devices; | |
2550 | } | |
2551 | ||
aff063e2 JK |
2552 | sbi->total_valid_node_count = |
2553 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2554 | percpu_counter_set(&sbi->total_valid_inode_count, |
2555 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2556 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2557 | sbi->total_valid_block_count = | |
2558 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2559 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2560 | sbi->reserved_blocks = 0; |
80d42145 | 2561 | sbi->current_reserved_blocks = 0; |
41382ec4 | 2562 | |
c227f912 CY |
2563 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2564 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2565 | spin_lock_init(&sbi->inode_lock[i]); | |
2566 | } | |
aff063e2 | 2567 | |
1dcc336b CY |
2568 | init_extent_cache_info(sbi); |
2569 | ||
6451e041 | 2570 | init_ino_entry_info(sbi); |
aff063e2 JK |
2571 | |
2572 | /* setup f2fs internal modules */ | |
2573 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2574 | if (err) { |
2575 | f2fs_msg(sb, KERN_ERR, | |
2576 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2577 | goto free_sm; |
a07ef784 | 2578 | } |
aff063e2 | 2579 | err = build_node_manager(sbi); |
a07ef784 NJ |
2580 | if (err) { |
2581 | f2fs_msg(sb, KERN_ERR, | |
2582 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2583 | goto free_nm; |
a07ef784 | 2584 | } |
aff063e2 | 2585 | |
8f1dbbbb SL |
2586 | /* For write statistics */ |
2587 | if (sb->s_bdev->bd_part) | |
2588 | sbi->sectors_written_start = | |
2589 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2590 | ||
2591 | /* Read accumulated write IO statistics if exists */ | |
2592 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2593 | if (__exist_node_summaries(sbi)) | |
2594 | sbi->kbytes_written = | |
b2dde6fc | 2595 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2596 | |
aff063e2 JK |
2597 | build_gc_manager(sbi); |
2598 | ||
2599 | /* get an inode for node space */ | |
2600 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2601 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2602 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2603 | err = PTR_ERR(sbi->node_inode); |
2604 | goto free_nm; | |
2605 | } | |
2606 | ||
2658e50d JK |
2607 | f2fs_join_shrinker(sbi); |
2608 | ||
aa51d08a JK |
2609 | err = f2fs_build_stats(sbi); |
2610 | if (err) | |
2611 | goto free_nm; | |
2612 | ||
aff063e2 JK |
2613 | /* read root inode and dentry */ |
2614 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2615 | if (IS_ERR(root)) { | |
a07ef784 | 2616 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 JK |
2617 | err = PTR_ERR(root); |
2618 | goto free_node_inode; | |
2619 | } | |
8f99a946 | 2620 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2621 | iput(root); |
8f99a946 | 2622 | err = -EINVAL; |
9d847950 | 2623 | goto free_node_inode; |
8f99a946 | 2624 | } |
aff063e2 JK |
2625 | |
2626 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2627 | if (!sb->s_root) { | |
2628 | err = -ENOMEM; | |
2629 | goto free_root_inode; | |
2630 | } | |
2631 | ||
dc6b2055 | 2632 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2633 | if (err) |
a398101a | 2634 | goto free_root_inode; |
b59d0bae | 2635 | |
ea676733 JK |
2636 | #ifdef CONFIG_QUOTA |
2637 | /* | |
2638 | * Turn on quotas which were not enabled for read-only mounts if | |
2639 | * filesystem has quota feature, so that they are updated correctly. | |
2640 | */ | |
2641 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) { | |
2642 | err = f2fs_enable_quotas(sb); | |
2643 | if (err) { | |
2644 | f2fs_msg(sb, KERN_ERR, | |
2645 | "Cannot turn on quotas: error %d", err); | |
2646 | goto free_sysfs; | |
2647 | } | |
2648 | } | |
2649 | #endif | |
4b2414d0 CY |
2650 | /* if there are nt orphan nodes free them */ |
2651 | err = recover_orphan_inodes(sbi); | |
2652 | if (err) | |
ea676733 | 2653 | goto free_meta; |
4b2414d0 | 2654 | |
6437d1b0 JK |
2655 | /* recover fsynced data */ |
2656 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2657 | /* |
2658 | * mount should be failed, when device has readonly mode, and | |
2659 | * previous checkpoint was not done by clean system shutdown. | |
2660 | */ | |
2661 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2662 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2663 | err = -EROFS; |
4b2414d0 | 2664 | goto free_meta; |
081d78c2 | 2665 | } |
2adc3505 CY |
2666 | |
2667 | if (need_fsck) | |
2668 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2669 | ||
a468f0ef JK |
2670 | if (!retry) |
2671 | goto skip_recovery; | |
2672 | ||
6781eabb JK |
2673 | err = recover_fsync_data(sbi, false); |
2674 | if (err < 0) { | |
2adc3505 | 2675 | need_fsck = true; |
6437d1b0 | 2676 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2677 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 2678 | goto free_meta; |
ed2e621a | 2679 | } |
6781eabb JK |
2680 | } else { |
2681 | err = recover_fsync_data(sbi, true); | |
2682 | ||
2683 | if (!f2fs_readonly(sb) && err > 0) { | |
2684 | err = -EINVAL; | |
2685 | f2fs_msg(sb, KERN_ERR, | |
2686 | "Need to recover fsync data"); | |
ea676733 | 2687 | goto free_meta; |
6781eabb | 2688 | } |
6437d1b0 | 2689 | } |
a468f0ef | 2690 | skip_recovery: |
315df839 JK |
2691 | /* recover_fsync_data() cleared this already */ |
2692 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2693 | |
6437d1b0 JK |
2694 | /* |
2695 | * If filesystem is not mounted as read-only then | |
2696 | * do start the gc_thread. | |
2697 | */ | |
6c029932 | 2698 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2699 | /* After POR, we can run background GC thread.*/ |
2700 | err = start_gc_thread(sbi); | |
2701 | if (err) | |
4b2414d0 | 2702 | goto free_meta; |
6437d1b0 | 2703 | } |
dabc4a5c | 2704 | kfree(options); |
da554e48 | 2705 | |
2706 | /* recover broken superblock */ | |
f2353d7b | 2707 | if (recovery) { |
41214b3c CY |
2708 | err = f2fs_commit_super(sbi, true); |
2709 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2710 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2711 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2712 | } |
2713 | ||
1200abb2 JK |
2714 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2715 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2716 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2717 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2718 | return 0; |
6437d1b0 | 2719 | |
4b2414d0 | 2720 | free_meta: |
ea676733 JK |
2721 | #ifdef CONFIG_QUOTA |
2722 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) | |
2723 | f2fs_quota_off_umount(sbi->sb); | |
2724 | #endif | |
0f18b462 | 2725 | f2fs_sync_inode_meta(sbi); |
4b2414d0 CY |
2726 | /* |
2727 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2728 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2729 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2730 | * falls into an infinite loop in sync_meta_pages(). | |
2731 | */ | |
2732 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
ea676733 | 2733 | #ifdef CONFIG_QUOTA |
4b2414d0 | 2734 | free_sysfs: |
ea676733 | 2735 | #endif |
dc6b2055 | 2736 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2737 | free_root_inode: |
2738 | dput(sb->s_root); | |
2739 | sb->s_root = NULL; | |
2740 | free_node_inode: | |
bb5dada7 | 2741 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
2658e50d | 2742 | mutex_lock(&sbi->umount_mutex); |
d41065e2 | 2743 | release_ino_entry(sbi, true); |
2658e50d | 2744 | f2fs_leave_shrinker(sbi); |
aff063e2 | 2745 | iput(sbi->node_inode); |
2658e50d | 2746 | mutex_unlock(&sbi->umount_mutex); |
aa51d08a | 2747 | f2fs_destroy_stats(sbi); |
aff063e2 JK |
2748 | free_nm: |
2749 | destroy_node_manager(sbi); | |
2750 | free_sm: | |
2751 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2752 | free_devices: |
2753 | destroy_device_list(sbi); | |
aff063e2 JK |
2754 | kfree(sbi->ckpt); |
2755 | free_meta_inode: | |
2756 | make_bad_inode(sbi->meta_inode); | |
2757 | iput(sbi->meta_inode); | |
0a595eba JK |
2758 | free_io_dummy: |
2759 | mempool_destroy(sbi->write_io_dummy); | |
dabc4a5c | 2760 | free_options: |
a912b54d JK |
2761 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2762 | kfree(sbi->write_io[i]); | |
523be8a6 | 2763 | destroy_percpu_info(sbi); |
4b2414d0 CY |
2764 | #ifdef CONFIG_QUOTA |
2765 | for (i = 0; i < MAXQUOTAS; i++) | |
2766 | kfree(sbi->s_qf_names[i]); | |
2767 | #endif | |
dabc4a5c | 2768 | kfree(options); |
aff063e2 | 2769 | free_sb_buf: |
b39f0de2 | 2770 | kfree(raw_super); |
aff063e2 | 2771 | free_sbi: |
43b6573b KM |
2772 | if (sbi->s_chksum_driver) |
2773 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2774 | kfree(sbi); |
ed2e621a JK |
2775 | |
2776 | /* give only one another chance */ | |
2777 | if (retry) { | |
9df47ba7 | 2778 | retry = false; |
ed2e621a JK |
2779 | shrink_dcache_sb(sb); |
2780 | goto try_onemore; | |
2781 | } | |
aff063e2 JK |
2782 | return err; |
2783 | } | |
2784 | ||
2785 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2786 | const char *dev_name, void *data) | |
2787 | { | |
2788 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2789 | } | |
2790 | ||
30a5537f JK |
2791 | static void kill_f2fs_super(struct super_block *sb) |
2792 | { | |
cce13252 | 2793 | if (sb->s_root) { |
caf0047e | 2794 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2795 | stop_gc_thread(F2FS_SB(sb)); |
2796 | stop_discard_thread(F2FS_SB(sb)); | |
2797 | } | |
30a5537f JK |
2798 | kill_block_super(sb); |
2799 | } | |
2800 | ||
aff063e2 JK |
2801 | static struct file_system_type f2fs_fs_type = { |
2802 | .owner = THIS_MODULE, | |
2803 | .name = "f2fs", | |
2804 | .mount = f2fs_mount, | |
30a5537f | 2805 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2806 | .fs_flags = FS_REQUIRES_DEV, |
2807 | }; | |
7f78e035 | 2808 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2809 | |
6e6093a8 | 2810 | static int __init init_inodecache(void) |
aff063e2 | 2811 | { |
5d097056 VD |
2812 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2813 | sizeof(struct f2fs_inode_info), 0, | |
2814 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2815 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2816 | return -ENOMEM; |
2817 | return 0; | |
2818 | } | |
2819 | ||
2820 | static void destroy_inodecache(void) | |
2821 | { | |
2822 | /* | |
2823 | * Make sure all delayed rcu free inodes are flushed before we | |
2824 | * destroy cache. | |
2825 | */ | |
2826 | rcu_barrier(); | |
2827 | kmem_cache_destroy(f2fs_inode_cachep); | |
2828 | } | |
2829 | ||
2830 | static int __init init_f2fs_fs(void) | |
2831 | { | |
2832 | int err; | |
2833 | ||
c0508650 JK |
2834 | f2fs_build_trace_ios(); |
2835 | ||
aff063e2 JK |
2836 | err = init_inodecache(); |
2837 | if (err) | |
2838 | goto fail; | |
2839 | err = create_node_manager_caches(); | |
2840 | if (err) | |
9890ff3f | 2841 | goto free_inodecache; |
7fd9e544 | 2842 | err = create_segment_manager_caches(); |
aff063e2 | 2843 | if (err) |
9890ff3f | 2844 | goto free_node_manager_caches; |
aff063e2 JK |
2845 | err = create_checkpoint_caches(); |
2846 | if (err) | |
06292073 | 2847 | goto free_segment_manager_caches; |
1dcc336b CY |
2848 | err = create_extent_cache(); |
2849 | if (err) | |
2850 | goto free_checkpoint_caches; | |
dc6b2055 | 2851 | err = f2fs_init_sysfs(); |
a398101a | 2852 | if (err) |
1dcc336b | 2853 | goto free_extent_cache; |
2658e50d | 2854 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 2855 | if (err) |
a398101a | 2856 | goto free_sysfs; |
2658e50d JK |
2857 | err = register_filesystem(&f2fs_fs_type); |
2858 | if (err) | |
2859 | goto free_shrinker; | |
787c7b8c CY |
2860 | err = f2fs_create_root_stats(); |
2861 | if (err) | |
2862 | goto free_filesystem; | |
9890ff3f ZH |
2863 | return 0; |
2864 | ||
787c7b8c CY |
2865 | free_filesystem: |
2866 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
2867 | free_shrinker: |
2868 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 2869 | free_sysfs: |
dc6b2055 | 2870 | f2fs_exit_sysfs(); |
1dcc336b CY |
2871 | free_extent_cache: |
2872 | destroy_extent_cache(); | |
9890ff3f ZH |
2873 | free_checkpoint_caches: |
2874 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
2875 | free_segment_manager_caches: |
2876 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
2877 | free_node_manager_caches: |
2878 | destroy_node_manager_caches(); | |
2879 | free_inodecache: | |
2880 | destroy_inodecache(); | |
aff063e2 JK |
2881 | fail: |
2882 | return err; | |
2883 | } | |
2884 | ||
2885 | static void __exit exit_f2fs_fs(void) | |
2886 | { | |
4589d25d | 2887 | f2fs_destroy_root_stats(); |
aff063e2 | 2888 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 2889 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 2890 | f2fs_exit_sysfs(); |
fdf6c8be | 2891 | destroy_extent_cache(); |
aff063e2 | 2892 | destroy_checkpoint_caches(); |
5dcd8a71 | 2893 | destroy_segment_manager_caches(); |
aff063e2 JK |
2894 | destroy_node_manager_caches(); |
2895 | destroy_inodecache(); | |
351f4fba | 2896 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
2897 | } |
2898 | ||
2899 | module_init(init_f2fs_fs) | |
2900 | module_exit(exit_f2fs_fs) | |
2901 | ||
2902 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
2903 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
2904 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 2905 |