Commit | Line | Data |
---|---|---|
0a8165d7 | 1 | /* |
aff063e2 JK |
2 | * fs/f2fs/super.c |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | #include <linux/module.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/statfs.h> | |
aff063e2 JK |
15 | #include <linux/buffer_head.h> |
16 | #include <linux/backing-dev.h> | |
17 | #include <linux/kthread.h> | |
18 | #include <linux/parser.h> | |
19 | #include <linux/mount.h> | |
20 | #include <linux/seq_file.h> | |
5e176d54 | 21 | #include <linux/proc_fs.h> |
aff063e2 JK |
22 | #include <linux/random.h> |
23 | #include <linux/exportfs.h> | |
d3ee456d | 24 | #include <linux/blkdev.h> |
0abd675e | 25 | #include <linux/quotaops.h> |
aff063e2 | 26 | #include <linux/f2fs_fs.h> |
b59d0bae | 27 | #include <linux/sysfs.h> |
4b2414d0 | 28 | #include <linux/quota.h> |
aff063e2 JK |
29 | |
30 | #include "f2fs.h" | |
31 | #include "node.h" | |
5ec4e49f | 32 | #include "segment.h" |
aff063e2 | 33 | #include "xattr.h" |
b59d0bae | 34 | #include "gc.h" |
db9f7c1a | 35 | #include "trace.h" |
aff063e2 | 36 | |
a2a4a7e4 NJ |
37 | #define CREATE_TRACE_POINTS |
38 | #include <trace/events/f2fs.h> | |
39 | ||
aff063e2 JK |
40 | static struct kmem_cache *f2fs_inode_cachep; |
41 | ||
73faec4d | 42 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
2c63fead JK |
43 | |
44 | char *fault_name[FAULT_MAX] = { | |
45 | [FAULT_KMALLOC] = "kmalloc", | |
628b3d14 | 46 | [FAULT_KVMALLOC] = "kvmalloc", |
c41f3cc3 | 47 | [FAULT_PAGE_ALLOC] = "page alloc", |
01eccef7 | 48 | [FAULT_PAGE_GET] = "page get", |
d62fe971 | 49 | [FAULT_ALLOC_BIO] = "alloc bio", |
cb78942b JK |
50 | [FAULT_ALLOC_NID] = "alloc nid", |
51 | [FAULT_ORPHAN] = "orphan", | |
52 | [FAULT_BLOCK] = "no more block", | |
53 | [FAULT_DIR_DEPTH] = "too big dir depth", | |
53aa6bbf | 54 | [FAULT_EVICT_INODE] = "evict_inode fail", |
14b44d23 | 55 | [FAULT_TRUNCATE] = "truncate fail", |
8b038c70 | 56 | [FAULT_IO] = "IO error", |
0f348028 | 57 | [FAULT_CHECKPOINT] = "checkpoint error", |
2c63fead | 58 | }; |
08796897 | 59 | |
1ecc0c5c CY |
60 | static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, |
61 | unsigned int rate) | |
08796897 | 62 | { |
1ecc0c5c CY |
63 | struct f2fs_fault_info *ffi = &sbi->fault_info; |
64 | ||
08796897 | 65 | if (rate) { |
1ecc0c5c CY |
66 | atomic_set(&ffi->inject_ops, 0); |
67 | ffi->inject_rate = rate; | |
68 | ffi->inject_type = (1 << FAULT_MAX) - 1; | |
08796897 | 69 | } else { |
1ecc0c5c | 70 | memset(ffi, 0, sizeof(struct f2fs_fault_info)); |
08796897 SY |
71 | } |
72 | } | |
73faec4d JK |
73 | #endif |
74 | ||
2658e50d JK |
75 | /* f2fs-wide shrinker description */ |
76 | static struct shrinker f2fs_shrinker_info = { | |
77 | .scan_objects = f2fs_shrink_scan, | |
78 | .count_objects = f2fs_shrink_count, | |
79 | .seeks = DEFAULT_SEEKS, | |
80 | }; | |
81 | ||
aff063e2 | 82 | enum { |
696c018c | 83 | Opt_gc_background, |
aff063e2 | 84 | Opt_disable_roll_forward, |
2d834bf9 | 85 | Opt_norecovery, |
aff063e2 | 86 | Opt_discard, |
64058be9 | 87 | Opt_nodiscard, |
aff063e2 | 88 | Opt_noheap, |
7a20b8a6 | 89 | Opt_heap, |
4058c511 | 90 | Opt_user_xattr, |
aff063e2 | 91 | Opt_nouser_xattr, |
4058c511 | 92 | Opt_acl, |
aff063e2 JK |
93 | Opt_noacl, |
94 | Opt_active_logs, | |
95 | Opt_disable_ext_identify, | |
444c580f | 96 | Opt_inline_xattr, |
23cf7212 | 97 | Opt_noinline_xattr, |
6afc662e | 98 | Opt_inline_xattr_size, |
8274de77 | 99 | Opt_inline_data, |
5efd3c6f | 100 | Opt_inline_dentry, |
97c1794a | 101 | Opt_noinline_dentry, |
6b4afdd7 | 102 | Opt_flush_merge, |
69e9e427 | 103 | Opt_noflush_merge, |
0f7b2abd | 104 | Opt_nobarrier, |
d5053a34 | 105 | Opt_fastboot, |
89672159 | 106 | Opt_extent_cache, |
7daaea25 | 107 | Opt_noextent_cache, |
75342797 | 108 | Opt_noinline_data, |
343f40f0 | 109 | Opt_data_flush, |
36abef4e | 110 | Opt_mode, |
ec91538d | 111 | Opt_io_size_bits, |
73faec4d | 112 | Opt_fault_injection, |
6d94c74a JK |
113 | Opt_lazytime, |
114 | Opt_nolazytime, | |
4b2414d0 CY |
115 | Opt_quota, |
116 | Opt_noquota, | |
0abd675e CY |
117 | Opt_usrquota, |
118 | Opt_grpquota, | |
5c57132e | 119 | Opt_prjquota, |
4b2414d0 CY |
120 | Opt_usrjquota, |
121 | Opt_grpjquota, | |
122 | Opt_prjjquota, | |
123 | Opt_offusrjquota, | |
124 | Opt_offgrpjquota, | |
125 | Opt_offprjjquota, | |
126 | Opt_jqfmt_vfsold, | |
127 | Opt_jqfmt_vfsv0, | |
128 | Opt_jqfmt_vfsv1, | |
aff063e2 JK |
129 | Opt_err, |
130 | }; | |
131 | ||
132 | static match_table_t f2fs_tokens = { | |
696c018c | 133 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 134 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 135 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 136 | {Opt_discard, "discard"}, |
64058be9 | 137 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 138 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 139 | {Opt_heap, "heap"}, |
4058c511 | 140 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 141 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 142 | {Opt_acl, "acl"}, |
aff063e2 JK |
143 | {Opt_noacl, "noacl"}, |
144 | {Opt_active_logs, "active_logs=%u"}, | |
145 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 146 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 147 | {Opt_noinline_xattr, "noinline_xattr"}, |
6afc662e | 148 | {Opt_inline_xattr_size, "inline_xattr_size=%u"}, |
8274de77 | 149 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 150 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 151 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 152 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 153 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 154 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 155 | {Opt_fastboot, "fastboot"}, |
89672159 | 156 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 157 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 158 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 159 | {Opt_data_flush, "data_flush"}, |
36abef4e | 160 | {Opt_mode, "mode=%s"}, |
ec91538d | 161 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 162 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
163 | {Opt_lazytime, "lazytime"}, |
164 | {Opt_nolazytime, "nolazytime"}, | |
4b2414d0 CY |
165 | {Opt_quota, "quota"}, |
166 | {Opt_noquota, "noquota"}, | |
0abd675e CY |
167 | {Opt_usrquota, "usrquota"}, |
168 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 169 | {Opt_prjquota, "prjquota"}, |
4b2414d0 CY |
170 | {Opt_usrjquota, "usrjquota=%s"}, |
171 | {Opt_grpjquota, "grpjquota=%s"}, | |
172 | {Opt_prjjquota, "prjjquota=%s"}, | |
173 | {Opt_offusrjquota, "usrjquota="}, | |
174 | {Opt_offgrpjquota, "grpjquota="}, | |
175 | {Opt_offprjjquota, "prjjquota="}, | |
176 | {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, | |
177 | {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, | |
178 | {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, | |
aff063e2 JK |
179 | {Opt_err, NULL}, |
180 | }; | |
181 | ||
a07ef784 NJ |
182 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
183 | { | |
184 | struct va_format vaf; | |
185 | va_list args; | |
186 | ||
187 | va_start(args, fmt); | |
188 | vaf.fmt = fmt; | |
189 | vaf.va = &args; | |
a36c106d | 190 | printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); |
a07ef784 NJ |
191 | va_end(args); |
192 | } | |
193 | ||
aff063e2 JK |
194 | static void init_once(void *foo) |
195 | { | |
196 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
197 | ||
aff063e2 JK |
198 | inode_init_once(&fi->vfs_inode); |
199 | } | |
200 | ||
4b2414d0 CY |
201 | #ifdef CONFIG_QUOTA |
202 | static const char * const quotatypes[] = INITQFNAMES; | |
203 | #define QTYPE2NAME(t) (quotatypes[t]) | |
204 | static int f2fs_set_qf_name(struct super_block *sb, int qtype, | |
205 | substring_t *args) | |
206 | { | |
207 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
208 | char *qname; | |
209 | int ret = -EINVAL; | |
210 | ||
211 | if (sb_any_quota_loaded(sb) && !sbi->s_qf_names[qtype]) { | |
212 | f2fs_msg(sb, KERN_ERR, | |
213 | "Cannot change journaled " | |
214 | "quota options when quota turned on"); | |
215 | return -EINVAL; | |
216 | } | |
ea676733 JK |
217 | if (f2fs_sb_has_quota_ino(sb)) { |
218 | f2fs_msg(sb, KERN_INFO, | |
219 | "QUOTA feature is enabled, so ignore qf_name"); | |
220 | return 0; | |
221 | } | |
222 | ||
4b2414d0 CY |
223 | qname = match_strdup(args); |
224 | if (!qname) { | |
225 | f2fs_msg(sb, KERN_ERR, | |
226 | "Not enough memory for storing quotafile name"); | |
227 | return -EINVAL; | |
228 | } | |
229 | if (sbi->s_qf_names[qtype]) { | |
230 | if (strcmp(sbi->s_qf_names[qtype], qname) == 0) | |
231 | ret = 0; | |
232 | else | |
233 | f2fs_msg(sb, KERN_ERR, | |
234 | "%s quota file already specified", | |
235 | QTYPE2NAME(qtype)); | |
236 | goto errout; | |
237 | } | |
238 | if (strchr(qname, '/')) { | |
239 | f2fs_msg(sb, KERN_ERR, | |
240 | "quotafile must be on filesystem root"); | |
241 | goto errout; | |
242 | } | |
243 | sbi->s_qf_names[qtype] = qname; | |
244 | set_opt(sbi, QUOTA); | |
245 | return 0; | |
246 | errout: | |
247 | kfree(qname); | |
248 | return ret; | |
249 | } | |
250 | ||
251 | static int f2fs_clear_qf_name(struct super_block *sb, int qtype) | |
252 | { | |
253 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
254 | ||
255 | if (sb_any_quota_loaded(sb) && sbi->s_qf_names[qtype]) { | |
256 | f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" | |
257 | " when quota turned on"); | |
258 | return -EINVAL; | |
259 | } | |
260 | kfree(sbi->s_qf_names[qtype]); | |
261 | sbi->s_qf_names[qtype] = NULL; | |
262 | return 0; | |
263 | } | |
264 | ||
265 | static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) | |
266 | { | |
267 | /* | |
268 | * We do the test below only for project quotas. 'usrquota' and | |
269 | * 'grpquota' mount options are allowed even without quota feature | |
270 | * to support legacy quotas in quota files. | |
271 | */ | |
272 | if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) { | |
273 | f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " | |
274 | "Cannot enable project quota enforcement."); | |
275 | return -1; | |
276 | } | |
277 | if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA] || | |
278 | sbi->s_qf_names[PRJQUOTA]) { | |
279 | if (test_opt(sbi, USRQUOTA) && sbi->s_qf_names[USRQUOTA]) | |
280 | clear_opt(sbi, USRQUOTA); | |
281 | ||
282 | if (test_opt(sbi, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) | |
283 | clear_opt(sbi, GRPQUOTA); | |
284 | ||
285 | if (test_opt(sbi, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA]) | |
286 | clear_opt(sbi, PRJQUOTA); | |
287 | ||
288 | if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || | |
289 | test_opt(sbi, PRJQUOTA)) { | |
290 | f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " | |
291 | "format mixing"); | |
292 | return -1; | |
293 | } | |
294 | ||
295 | if (!sbi->s_jquota_fmt) { | |
296 | f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " | |
297 | "not specified"); | |
298 | return -1; | |
299 | } | |
300 | } | |
ea676733 JK |
301 | |
302 | if (f2fs_sb_has_quota_ino(sbi->sb) && sbi->s_jquota_fmt) { | |
303 | f2fs_msg(sbi->sb, KERN_INFO, | |
304 | "QUOTA feature is enabled, so ignore jquota_fmt"); | |
305 | sbi->s_jquota_fmt = 0; | |
306 | } | |
307 | if (f2fs_sb_has_quota_ino(sbi->sb) && sb_rdonly(sbi->sb)) { | |
308 | f2fs_msg(sbi->sb, KERN_INFO, | |
309 | "Filesystem with quota feature cannot be mounted RDWR " | |
310 | "without CONFIG_QUOTA"); | |
311 | return -1; | |
312 | } | |
4b2414d0 CY |
313 | return 0; |
314 | } | |
315 | #endif | |
316 | ||
696c018c NJ |
317 | static int parse_options(struct super_block *sb, char *options) |
318 | { | |
319 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 320 | struct request_queue *q; |
696c018c NJ |
321 | substring_t args[MAX_OPT_ARGS]; |
322 | char *p, *name; | |
323 | int arg = 0; | |
4b2414d0 CY |
324 | #ifdef CONFIG_QUOTA |
325 | int ret; | |
326 | #endif | |
696c018c NJ |
327 | |
328 | if (!options) | |
329 | return 0; | |
330 | ||
331 | while ((p = strsep(&options, ",")) != NULL) { | |
332 | int token; | |
333 | if (!*p) | |
334 | continue; | |
335 | /* | |
336 | * Initialize args struct so we know whether arg was | |
337 | * found; some options take optional arguments. | |
338 | */ | |
339 | args[0].to = args[0].from = NULL; | |
340 | token = match_token(p, f2fs_tokens, args); | |
341 | ||
342 | switch (token) { | |
343 | case Opt_gc_background: | |
344 | name = match_strdup(&args[0]); | |
345 | ||
346 | if (!name) | |
347 | return -ENOMEM; | |
6aefd93b | 348 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 349 | set_opt(sbi, BG_GC); |
6aefd93b JK |
350 | clear_opt(sbi, FORCE_FG_GC); |
351 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 352 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
353 | clear_opt(sbi, FORCE_FG_GC); |
354 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
355 | set_opt(sbi, BG_GC); | |
356 | set_opt(sbi, FORCE_FG_GC); | |
357 | } else { | |
696c018c NJ |
358 | kfree(name); |
359 | return -EINVAL; | |
360 | } | |
361 | kfree(name); | |
362 | break; | |
363 | case Opt_disable_roll_forward: | |
364 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
365 | break; | |
2d834bf9 JK |
366 | case Opt_norecovery: |
367 | /* this option mounts f2fs with ro */ | |
368 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
369 | if (!f2fs_readonly(sb)) | |
370 | return -EINVAL; | |
371 | break; | |
696c018c | 372 | case Opt_discard: |
09d54cdd CY |
373 | q = bdev_get_queue(sb->s_bdev); |
374 | if (blk_queue_discard(q)) { | |
375 | set_opt(sbi, DISCARD); | |
0ab02998 | 376 | } else if (!f2fs_sb_mounted_blkzoned(sb)) { |
09d54cdd CY |
377 | f2fs_msg(sb, KERN_WARNING, |
378 | "mounting with \"discard\" option, but " | |
379 | "the device does not support discard"); | |
380 | } | |
696c018c | 381 | break; |
64058be9 | 382 | case Opt_nodiscard: |
96ba2dec DLM |
383 | if (f2fs_sb_mounted_blkzoned(sb)) { |
384 | f2fs_msg(sb, KERN_WARNING, | |
385 | "discard is required for zoned block devices"); | |
386 | return -EINVAL; | |
387 | } | |
64058be9 | 388 | clear_opt(sbi, DISCARD); |
487df616 | 389 | break; |
696c018c NJ |
390 | case Opt_noheap: |
391 | set_opt(sbi, NOHEAP); | |
392 | break; | |
7a20b8a6 JK |
393 | case Opt_heap: |
394 | clear_opt(sbi, NOHEAP); | |
395 | break; | |
696c018c | 396 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
397 | case Opt_user_xattr: |
398 | set_opt(sbi, XATTR_USER); | |
399 | break; | |
696c018c NJ |
400 | case Opt_nouser_xattr: |
401 | clear_opt(sbi, XATTR_USER); | |
402 | break; | |
444c580f JK |
403 | case Opt_inline_xattr: |
404 | set_opt(sbi, INLINE_XATTR); | |
405 | break; | |
23cf7212 CY |
406 | case Opt_noinline_xattr: |
407 | clear_opt(sbi, INLINE_XATTR); | |
408 | break; | |
6afc662e CY |
409 | case Opt_inline_xattr_size: |
410 | if (args->from && match_int(args, &arg)) | |
411 | return -EINVAL; | |
412 | set_opt(sbi, INLINE_XATTR_SIZE); | |
413 | sbi->inline_xattr_size = arg; | |
414 | break; | |
696c018c | 415 | #else |
4058c511 KA |
416 | case Opt_user_xattr: |
417 | f2fs_msg(sb, KERN_INFO, | |
418 | "user_xattr options not supported"); | |
419 | break; | |
696c018c NJ |
420 | case Opt_nouser_xattr: |
421 | f2fs_msg(sb, KERN_INFO, | |
422 | "nouser_xattr options not supported"); | |
423 | break; | |
444c580f JK |
424 | case Opt_inline_xattr: |
425 | f2fs_msg(sb, KERN_INFO, | |
426 | "inline_xattr options not supported"); | |
427 | break; | |
23cf7212 CY |
428 | case Opt_noinline_xattr: |
429 | f2fs_msg(sb, KERN_INFO, | |
430 | "noinline_xattr options not supported"); | |
431 | break; | |
696c018c NJ |
432 | #endif |
433 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
434 | case Opt_acl: |
435 | set_opt(sbi, POSIX_ACL); | |
436 | break; | |
696c018c NJ |
437 | case Opt_noacl: |
438 | clear_opt(sbi, POSIX_ACL); | |
439 | break; | |
440 | #else | |
4058c511 KA |
441 | case Opt_acl: |
442 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
443 | break; | |
696c018c NJ |
444 | case Opt_noacl: |
445 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
446 | break; | |
447 | #endif | |
448 | case Opt_active_logs: | |
449 | if (args->from && match_int(args, &arg)) | |
450 | return -EINVAL; | |
451 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
452 | return -EINVAL; | |
453 | sbi->active_logs = arg; | |
454 | break; | |
455 | case Opt_disable_ext_identify: | |
456 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
457 | break; | |
8274de77 HL |
458 | case Opt_inline_data: |
459 | set_opt(sbi, INLINE_DATA); | |
460 | break; | |
5efd3c6f CY |
461 | case Opt_inline_dentry: |
462 | set_opt(sbi, INLINE_DENTRY); | |
463 | break; | |
97c1794a CY |
464 | case Opt_noinline_dentry: |
465 | clear_opt(sbi, INLINE_DENTRY); | |
466 | break; | |
6b4afdd7 JK |
467 | case Opt_flush_merge: |
468 | set_opt(sbi, FLUSH_MERGE); | |
469 | break; | |
69e9e427 JK |
470 | case Opt_noflush_merge: |
471 | clear_opt(sbi, FLUSH_MERGE); | |
472 | break; | |
0f7b2abd JK |
473 | case Opt_nobarrier: |
474 | set_opt(sbi, NOBARRIER); | |
475 | break; | |
d5053a34 JK |
476 | case Opt_fastboot: |
477 | set_opt(sbi, FASTBOOT); | |
478 | break; | |
89672159 CY |
479 | case Opt_extent_cache: |
480 | set_opt(sbi, EXTENT_CACHE); | |
481 | break; | |
7daaea25 JK |
482 | case Opt_noextent_cache: |
483 | clear_opt(sbi, EXTENT_CACHE); | |
484 | break; | |
75342797 WL |
485 | case Opt_noinline_data: |
486 | clear_opt(sbi, INLINE_DATA); | |
487 | break; | |
343f40f0 CY |
488 | case Opt_data_flush: |
489 | set_opt(sbi, DATA_FLUSH); | |
490 | break; | |
36abef4e JK |
491 | case Opt_mode: |
492 | name = match_strdup(&args[0]); | |
493 | ||
494 | if (!name) | |
495 | return -ENOMEM; | |
496 | if (strlen(name) == 8 && | |
497 | !strncmp(name, "adaptive", 8)) { | |
3adc57e9 DLM |
498 | if (f2fs_sb_mounted_blkzoned(sb)) { |
499 | f2fs_msg(sb, KERN_WARNING, | |
500 | "adaptive mode is not allowed with " | |
501 | "zoned block device feature"); | |
502 | kfree(name); | |
503 | return -EINVAL; | |
504 | } | |
52763a4b | 505 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
506 | } else if (strlen(name) == 3 && |
507 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 508 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
509 | } else { |
510 | kfree(name); | |
511 | return -EINVAL; | |
512 | } | |
513 | kfree(name); | |
514 | break; | |
ec91538d JK |
515 | case Opt_io_size_bits: |
516 | if (args->from && match_int(args, &arg)) | |
517 | return -EINVAL; | |
518 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
519 | f2fs_msg(sb, KERN_WARNING, | |
520 | "Not support %d, larger than %d", | |
521 | 1 << arg, BIO_MAX_PAGES); | |
522 | return -EINVAL; | |
523 | } | |
524 | sbi->write_io_size_bits = arg; | |
525 | break; | |
73faec4d JK |
526 | case Opt_fault_injection: |
527 | if (args->from && match_int(args, &arg)) | |
528 | return -EINVAL; | |
529 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 530 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 531 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
532 | #else |
533 | f2fs_msg(sb, KERN_INFO, | |
534 | "FAULT_INJECTION was not selected"); | |
535 | #endif | |
536 | break; | |
6d94c74a | 537 | case Opt_lazytime: |
1751e8a6 | 538 | sb->s_flags |= SB_LAZYTIME; |
6d94c74a JK |
539 | break; |
540 | case Opt_nolazytime: | |
1751e8a6 | 541 | sb->s_flags &= ~SB_LAZYTIME; |
6d94c74a | 542 | break; |
0abd675e | 543 | #ifdef CONFIG_QUOTA |
4b2414d0 | 544 | case Opt_quota: |
0abd675e CY |
545 | case Opt_usrquota: |
546 | set_opt(sbi, USRQUOTA); | |
547 | break; | |
548 | case Opt_grpquota: | |
549 | set_opt(sbi, GRPQUOTA); | |
550 | break; | |
5c57132e CY |
551 | case Opt_prjquota: |
552 | set_opt(sbi, PRJQUOTA); | |
553 | break; | |
4b2414d0 CY |
554 | case Opt_usrjquota: |
555 | ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); | |
556 | if (ret) | |
557 | return ret; | |
558 | break; | |
559 | case Opt_grpjquota: | |
560 | ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); | |
561 | if (ret) | |
562 | return ret; | |
563 | break; | |
564 | case Opt_prjjquota: | |
565 | ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); | |
566 | if (ret) | |
567 | return ret; | |
568 | break; | |
569 | case Opt_offusrjquota: | |
570 | ret = f2fs_clear_qf_name(sb, USRQUOTA); | |
571 | if (ret) | |
572 | return ret; | |
573 | break; | |
574 | case Opt_offgrpjquota: | |
575 | ret = f2fs_clear_qf_name(sb, GRPQUOTA); | |
576 | if (ret) | |
577 | return ret; | |
578 | break; | |
579 | case Opt_offprjjquota: | |
580 | ret = f2fs_clear_qf_name(sb, PRJQUOTA); | |
581 | if (ret) | |
582 | return ret; | |
583 | break; | |
584 | case Opt_jqfmt_vfsold: | |
585 | sbi->s_jquota_fmt = QFMT_VFS_OLD; | |
586 | break; | |
587 | case Opt_jqfmt_vfsv0: | |
588 | sbi->s_jquota_fmt = QFMT_VFS_V0; | |
589 | break; | |
590 | case Opt_jqfmt_vfsv1: | |
591 | sbi->s_jquota_fmt = QFMT_VFS_V1; | |
592 | break; | |
593 | case Opt_noquota: | |
594 | clear_opt(sbi, QUOTA); | |
595 | clear_opt(sbi, USRQUOTA); | |
596 | clear_opt(sbi, GRPQUOTA); | |
597 | clear_opt(sbi, PRJQUOTA); | |
598 | break; | |
0abd675e | 599 | #else |
4b2414d0 | 600 | case Opt_quota: |
0abd675e CY |
601 | case Opt_usrquota: |
602 | case Opt_grpquota: | |
5c57132e | 603 | case Opt_prjquota: |
4b2414d0 CY |
604 | case Opt_usrjquota: |
605 | case Opt_grpjquota: | |
606 | case Opt_prjjquota: | |
607 | case Opt_offusrjquota: | |
608 | case Opt_offgrpjquota: | |
609 | case Opt_offprjjquota: | |
610 | case Opt_jqfmt_vfsold: | |
611 | case Opt_jqfmt_vfsv0: | |
612 | case Opt_jqfmt_vfsv1: | |
613 | case Opt_noquota: | |
0abd675e CY |
614 | f2fs_msg(sb, KERN_INFO, |
615 | "quota operations not supported"); | |
616 | break; | |
617 | #endif | |
696c018c NJ |
618 | default: |
619 | f2fs_msg(sb, KERN_ERR, | |
620 | "Unrecognized mount option \"%s\" or missing value", | |
621 | p); | |
622 | return -EINVAL; | |
623 | } | |
624 | } | |
4b2414d0 CY |
625 | #ifdef CONFIG_QUOTA |
626 | if (f2fs_check_quota_options(sbi)) | |
627 | return -EINVAL; | |
628 | #endif | |
ec91538d JK |
629 | |
630 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
631 | f2fs_msg(sb, KERN_ERR, | |
632 | "Should set mode=lfs with %uKB-sized IO", | |
633 | F2FS_IO_SIZE_KB(sbi)); | |
634 | return -EINVAL; | |
635 | } | |
6afc662e CY |
636 | |
637 | if (test_opt(sbi, INLINE_XATTR_SIZE)) { | |
638 | if (!test_opt(sbi, INLINE_XATTR)) { | |
639 | f2fs_msg(sb, KERN_ERR, | |
640 | "inline_xattr_size option should be " | |
641 | "set with inline_xattr option"); | |
642 | return -EINVAL; | |
643 | } | |
644 | if (!sbi->inline_xattr_size || | |
645 | sbi->inline_xattr_size >= DEF_ADDRS_PER_INODE - | |
646 | F2FS_TOTAL_EXTRA_ATTR_SIZE - | |
647 | DEF_INLINE_RESERVED_SIZE - | |
648 | DEF_MIN_INLINE_SIZE) { | |
649 | f2fs_msg(sb, KERN_ERR, | |
650 | "inline xattr size is out of range"); | |
651 | return -EINVAL; | |
652 | } | |
653 | } | |
696c018c NJ |
654 | return 0; |
655 | } | |
656 | ||
aff063e2 JK |
657 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
658 | { | |
659 | struct f2fs_inode_info *fi; | |
660 | ||
a0acdfe0 | 661 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
662 | if (!fi) |
663 | return NULL; | |
664 | ||
665 | init_once((void *) fi); | |
666 | ||
434720fa | 667 | /* Initialize f2fs-specific inode info */ |
204706c7 | 668 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
669 | fi->i_current_depth = 1; |
670 | fi->i_advise = 0; | |
d928bfbf | 671 | init_rwsem(&fi->i_sem); |
2710fd7e | 672 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 673 | INIT_LIST_HEAD(&fi->gdirty_list); |
57864ae5 | 674 | INIT_LIST_HEAD(&fi->inmem_ilist); |
88b88a66 JK |
675 | INIT_LIST_HEAD(&fi->inmem_pages); |
676 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
677 | init_rwsem(&fi->dio_rwsem[READ]); |
678 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 679 | init_rwsem(&fi->i_mmap_sem); |
27161f13 | 680 | init_rwsem(&fi->i_xattr_sem); |
aff063e2 | 681 | |
0abd675e CY |
682 | #ifdef CONFIG_QUOTA |
683 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
684 | fi->i_reserved_quota = 0; | |
685 | #endif | |
ab9fa662 JK |
686 | /* Will be used by directory only */ |
687 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 688 | |
aff063e2 JK |
689 | return &fi->vfs_inode; |
690 | } | |
691 | ||
531ad7d5 JK |
692 | static int f2fs_drop_inode(struct inode *inode) |
693 | { | |
b8d96a30 | 694 | int ret; |
531ad7d5 JK |
695 | /* |
696 | * This is to avoid a deadlock condition like below. | |
697 | * writeback_single_inode(inode) | |
698 | * - f2fs_write_data_page | |
699 | * - f2fs_gc -> iput -> evict | |
700 | * - inode_wait_for_writeback(inode) | |
701 | */ | |
0f18b462 | 702 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 703 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
704 | /* to avoid evict_inode call simultaneously */ |
705 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
706 | spin_unlock(&inode->i_lock); |
707 | ||
708 | /* some remained atomic pages should discarded */ | |
709 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 710 | drop_inmem_pages(inode); |
06e1bc05 | 711 | |
3e72f721 JK |
712 | /* should remain fi->extent_tree for writepage */ |
713 | f2fs_destroy_extent_node(inode); | |
714 | ||
06e1bc05 | 715 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 716 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
717 | |
718 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 719 | f2fs_truncate(inode); |
06e1bc05 JK |
720 | |
721 | sb_end_intwrite(inode->i_sb); | |
722 | ||
06e1bc05 | 723 | spin_lock(&inode->i_lock); |
3e72f721 | 724 | atomic_dec(&inode->i_count); |
06e1bc05 | 725 | } |
b8d96a30 | 726 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 727 | return 0; |
06e1bc05 | 728 | } |
b8d96a30 HP |
729 | ret = generic_drop_inode(inode); |
730 | trace_f2fs_drop_inode(inode, ret); | |
731 | return ret; | |
531ad7d5 JK |
732 | } |
733 | ||
7c45729a | 734 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 735 | { |
0f18b462 | 736 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 737 | int ret = 0; |
0f18b462 | 738 | |
0f18b462 JK |
739 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
740 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
741 | ret = 1; |
742 | } else { | |
743 | set_inode_flag(inode, FI_DIRTY_INODE); | |
744 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 745 | } |
7c45729a JK |
746 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
747 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 748 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
749 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
750 | } | |
338bbfa0 | 751 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 752 | return ret; |
0f18b462 JK |
753 | } |
754 | ||
755 | void f2fs_inode_synced(struct inode *inode) | |
756 | { | |
757 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
758 | ||
759 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
760 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
761 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
762 | return; | |
763 | } | |
7c45729a JK |
764 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
765 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
766 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
767 | } | |
0f18b462 | 768 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 769 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 770 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 771 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
772 | } |
773 | ||
b56ab837 JK |
774 | /* |
775 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
776 | * | |
777 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
778 | */ | |
779 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
780 | { | |
781 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
782 | ||
783 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
784 | inode->i_ino == F2FS_META_INO(sbi)) | |
785 | return; | |
786 | ||
787 | if (flags == I_DIRTY_TIME) | |
788 | return; | |
789 | ||
790 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
791 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
792 | ||
7c45729a | 793 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
794 | } |
795 | ||
aff063e2 JK |
796 | static void f2fs_i_callback(struct rcu_head *head) |
797 | { | |
798 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
799 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
800 | } | |
801 | ||
25ca923b | 802 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
803 | { |
804 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
805 | } | |
806 | ||
523be8a6 JK |
807 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
808 | { | |
41382ec4 | 809 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 810 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
811 | } |
812 | ||
3c62be17 JK |
813 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
814 | { | |
815 | int i; | |
816 | ||
817 | for (i = 0; i < sbi->s_ndevs; i++) { | |
818 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
819 | #ifdef CONFIG_BLK_DEV_ZONED | |
820 | kfree(FDEV(i).blkz_type); | |
821 | #endif | |
822 | } | |
823 | kfree(sbi->devs); | |
824 | } | |
825 | ||
aff063e2 JK |
826 | static void f2fs_put_super(struct super_block *sb) |
827 | { | |
828 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 829 | int i; |
cf5c759f | 830 | bool dropped; |
aff063e2 | 831 | |
0abd675e | 832 | f2fs_quota_off_umount(sb); |
aff063e2 | 833 | |
2658e50d JK |
834 | /* prevent remaining shrinker jobs */ |
835 | mutex_lock(&sbi->umount_mutex); | |
836 | ||
85dc2f2c JK |
837 | /* |
838 | * We don't need to do checkpoint when superblock is clean. | |
839 | * But, the previous checkpoint was not done by umount, it needs to do | |
840 | * clean checkpoint again. | |
841 | */ | |
caf0047e | 842 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 843 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
844 | struct cp_control cpc = { |
845 | .reason = CP_UMOUNT, | |
846 | }; | |
847 | write_checkpoint(sbi, &cpc); | |
848 | } | |
aff063e2 | 849 | |
4e6a8d9b | 850 | /* be sure to wait for any on-going discard commands */ |
cf5c759f | 851 | dropped = f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 852 | |
cf5c759f | 853 | if (f2fs_discard_en(sbi) && !sbi->discard_blks && !dropped) { |
1f43e2ad CY |
854 | struct cp_control cpc = { |
855 | .reason = CP_UMOUNT | CP_TRIMMED, | |
856 | }; | |
857 | write_checkpoint(sbi, &cpc); | |
858 | } | |
859 | ||
eca616f8 JK |
860 | /* write_checkpoint can update stat informaion */ |
861 | f2fs_destroy_stats(sbi); | |
862 | ||
cf779cab JK |
863 | /* |
864 | * normally superblock is clean, so we need to release this. | |
865 | * In addition, EIO will skip do checkpoint, we need this as well. | |
866 | */ | |
74ef9241 | 867 | release_ino_entry(sbi, true); |
6f12ac25 | 868 | |
2658e50d JK |
869 | f2fs_leave_shrinker(sbi); |
870 | mutex_unlock(&sbi->umount_mutex); | |
871 | ||
17c19120 | 872 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 873 | f2fs_flush_merged_writes(sbi); |
17c19120 | 874 | |
aff063e2 JK |
875 | iput(sbi->node_inode); |
876 | iput(sbi->meta_inode); | |
877 | ||
878 | /* destroy f2fs internal modules */ | |
879 | destroy_node_manager(sbi); | |
880 | destroy_segment_manager(sbi); | |
881 | ||
882 | kfree(sbi->ckpt); | |
a398101a | 883 | |
dc6b2055 | 884 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
885 | |
886 | sb->s_fs_info = NULL; | |
43b6573b KM |
887 | if (sbi->s_chksum_driver) |
888 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 889 | kfree(sbi->raw_super); |
523be8a6 | 890 | |
3c62be17 | 891 | destroy_device_list(sbi); |
b6895e8f | 892 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
893 | #ifdef CONFIG_QUOTA |
894 | for (i = 0; i < MAXQUOTAS; i++) | |
895 | kfree(sbi->s_qf_names[i]); | |
896 | #endif | |
523be8a6 | 897 | destroy_percpu_info(sbi); |
a912b54d JK |
898 | for (i = 0; i < NR_PAGE_TYPE; i++) |
899 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
900 | kfree(sbi); |
901 | } | |
902 | ||
903 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
904 | { | |
905 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 906 | int err = 0; |
aff063e2 | 907 | |
1f227a3e JK |
908 | if (unlikely(f2fs_cp_error(sbi))) |
909 | return 0; | |
910 | ||
a2a4a7e4 NJ |
911 | trace_f2fs_sync_fs(sb, sync); |
912 | ||
4b2414d0 CY |
913 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
914 | return -EAGAIN; | |
915 | ||
b7473754 | 916 | if (sync) { |
d5053a34 JK |
917 | struct cp_control cpc; |
918 | ||
119ee914 JK |
919 | cpc.reason = __get_cp_reason(sbi); |
920 | ||
b7473754 | 921 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 922 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 923 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 924 | } |
05ca3632 | 925 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 926 | |
c34f42e2 | 927 | return err; |
aff063e2 JK |
928 | } |
929 | ||
d6212a5f CL |
930 | static int f2fs_freeze(struct super_block *sb) |
931 | { | |
77888c1e | 932 | if (f2fs_readonly(sb)) |
d6212a5f CL |
933 | return 0; |
934 | ||
b4b9d34c JK |
935 | /* IO error happened before */ |
936 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
937 | return -EIO; | |
938 | ||
939 | /* must be clean, since sync_filesystem() was already called */ | |
940 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
941 | return -EINVAL; | |
942 | return 0; | |
d6212a5f CL |
943 | } |
944 | ||
945 | static int f2fs_unfreeze(struct super_block *sb) | |
946 | { | |
947 | return 0; | |
948 | } | |
949 | ||
ddc34e32 CY |
950 | #ifdef CONFIG_QUOTA |
951 | static int f2fs_statfs_project(struct super_block *sb, | |
952 | kprojid_t projid, struct kstatfs *buf) | |
953 | { | |
954 | struct kqid qid; | |
955 | struct dquot *dquot; | |
956 | u64 limit; | |
957 | u64 curblock; | |
958 | ||
959 | qid = make_kqid_projid(projid); | |
960 | dquot = dqget(sb, qid); | |
961 | if (IS_ERR(dquot)) | |
962 | return PTR_ERR(dquot); | |
963 | spin_lock(&dq_data_lock); | |
964 | ||
965 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
966 | dquot->dq_dqb.dqb_bsoftlimit : | |
967 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
968 | if (limit && buf->f_blocks > limit) { | |
969 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
970 | buf->f_blocks = limit; | |
971 | buf->f_bfree = buf->f_bavail = | |
972 | (buf->f_blocks > curblock) ? | |
973 | (buf->f_blocks - curblock) : 0; | |
974 | } | |
975 | ||
976 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
977 | dquot->dq_dqb.dqb_isoftlimit : | |
978 | dquot->dq_dqb.dqb_ihardlimit; | |
979 | if (limit && buf->f_files > limit) { | |
980 | buf->f_files = limit; | |
981 | buf->f_ffree = | |
982 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
983 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
984 | } | |
985 | ||
986 | spin_unlock(&dq_data_lock); | |
987 | dqput(dquot); | |
988 | return 0; | |
989 | } | |
990 | #endif | |
991 | ||
aff063e2 JK |
992 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
993 | { | |
994 | struct super_block *sb = dentry->d_sb; | |
995 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
996 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
997 | block_t total_count, user_block_count, start_count, ovp_count; | |
0cc091d0 | 998 | u64 avail_node_count; |
aff063e2 JK |
999 | |
1000 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
1001 | user_block_count = sbi->user_block_count; | |
1002 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
1003 | ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; | |
1004 | buf->f_type = F2FS_SUPER_MAGIC; | |
1005 | buf->f_bsize = sbi->blocksize; | |
1006 | ||
1007 | buf->f_blocks = total_count - start_count; | |
3e6d0b4d | 1008 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; |
daeb433e | 1009 | buf->f_bavail = user_block_count - valid_user_blocks(sbi) - |
80d42145 | 1010 | sbi->current_reserved_blocks; |
aff063e2 | 1011 | |
292c196a CY |
1012 | avail_node_count = sbi->total_node_count - sbi->nquota_files - |
1013 | F2FS_RESERVED_NODE_NUM; | |
0cc091d0 JK |
1014 | |
1015 | if (avail_node_count > user_block_count) { | |
1016 | buf->f_files = user_block_count; | |
1017 | buf->f_ffree = buf->f_bavail; | |
1018 | } else { | |
1019 | buf->f_files = avail_node_count; | |
1020 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
1021 | buf->f_bavail); | |
1022 | } | |
aff063e2 | 1023 | |
5a20d339 | 1024 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
1025 | buf->f_fsid.val[0] = (u32)id; |
1026 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1027 | ||
ddc34e32 CY |
1028 | #ifdef CONFIG_QUOTA |
1029 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
1030 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
1031 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
1032 | } | |
1033 | #endif | |
aff063e2 JK |
1034 | return 0; |
1035 | } | |
1036 | ||
4b2414d0 CY |
1037 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
1038 | struct super_block *sb) | |
1039 | { | |
1040 | #ifdef CONFIG_QUOTA | |
1041 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1042 | ||
1043 | if (sbi->s_jquota_fmt) { | |
1044 | char *fmtname = ""; | |
1045 | ||
1046 | switch (sbi->s_jquota_fmt) { | |
1047 | case QFMT_VFS_OLD: | |
1048 | fmtname = "vfsold"; | |
1049 | break; | |
1050 | case QFMT_VFS_V0: | |
1051 | fmtname = "vfsv0"; | |
1052 | break; | |
1053 | case QFMT_VFS_V1: | |
1054 | fmtname = "vfsv1"; | |
1055 | break; | |
1056 | } | |
1057 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1058 | } | |
1059 | ||
1060 | if (sbi->s_qf_names[USRQUOTA]) | |
1061 | seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]); | |
1062 | ||
1063 | if (sbi->s_qf_names[GRPQUOTA]) | |
1064 | seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]); | |
1065 | ||
1066 | if (sbi->s_qf_names[PRJQUOTA]) | |
1067 | seq_show_option(seq, "prjjquota", sbi->s_qf_names[PRJQUOTA]); | |
1068 | #endif | |
1069 | } | |
1070 | ||
aff063e2 JK |
1071 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1072 | { | |
1073 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1074 | ||
6aefd93b JK |
1075 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1076 | if (test_opt(sbi, FORCE_FG_GC)) | |
1077 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1078 | else | |
1079 | seq_printf(seq, ",background_gc=%s", "on"); | |
1080 | } else { | |
696c018c | 1081 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1082 | } |
aff063e2 JK |
1083 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1084 | seq_puts(seq, ",disable_roll_forward"); | |
1085 | if (test_opt(sbi, DISCARD)) | |
1086 | seq_puts(seq, ",discard"); | |
1087 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1088 | seq_puts(seq, ",no_heap"); |
1089 | else | |
1090 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1091 | #ifdef CONFIG_F2FS_FS_XATTR |
1092 | if (test_opt(sbi, XATTR_USER)) | |
1093 | seq_puts(seq, ",user_xattr"); | |
1094 | else | |
1095 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1096 | if (test_opt(sbi, INLINE_XATTR)) |
1097 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1098 | else |
1099 | seq_puts(seq, ",noinline_xattr"); | |
6afc662e CY |
1100 | if (test_opt(sbi, INLINE_XATTR_SIZE)) |
1101 | seq_printf(seq, ",inline_xattr_size=%u", | |
1102 | sbi->inline_xattr_size); | |
aff063e2 JK |
1103 | #endif |
1104 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1105 | if (test_opt(sbi, POSIX_ACL)) | |
1106 | seq_puts(seq, ",acl"); | |
1107 | else | |
1108 | seq_puts(seq, ",noacl"); | |
1109 | #endif | |
1110 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1111 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1112 | if (test_opt(sbi, INLINE_DATA)) |
1113 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1114 | else |
1115 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1116 | if (test_opt(sbi, INLINE_DENTRY)) |
1117 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1118 | else |
1119 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1120 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1121 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1122 | if (test_opt(sbi, NOBARRIER)) |
1123 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1124 | if (test_opt(sbi, FASTBOOT)) |
1125 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1126 | if (test_opt(sbi, EXTENT_CACHE)) |
1127 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1128 | else |
1129 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1130 | if (test_opt(sbi, DATA_FLUSH)) |
1131 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1132 | |
1133 | seq_puts(seq, ",mode="); | |
1134 | if (test_opt(sbi, ADAPTIVE)) | |
1135 | seq_puts(seq, "adaptive"); | |
1136 | else if (test_opt(sbi, LFS)) | |
1137 | seq_puts(seq, "lfs"); | |
aff063e2 | 1138 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
ec91538d JK |
1139 | if (F2FS_IO_SIZE_BITS(sbi)) |
1140 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
1141 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1142 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
1143 | seq_printf(seq, ",fault_injection=%u", |
1144 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 1145 | #endif |
0abd675e | 1146 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1147 | if (test_opt(sbi, QUOTA)) |
1148 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1149 | if (test_opt(sbi, USRQUOTA)) |
1150 | seq_puts(seq, ",usrquota"); | |
1151 | if (test_opt(sbi, GRPQUOTA)) | |
1152 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1153 | if (test_opt(sbi, PRJQUOTA)) |
1154 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1155 | #endif |
4b2414d0 | 1156 | f2fs_show_quota_options(seq, sbi->sb); |
aff063e2 JK |
1157 | |
1158 | return 0; | |
1159 | } | |
1160 | ||
498c5e9f YH |
1161 | static void default_options(struct f2fs_sb_info *sbi) |
1162 | { | |
1163 | /* init some FS parameters */ | |
1164 | sbi->active_logs = NR_CURSEG_TYPE; | |
6afc662e | 1165 | sbi->inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
498c5e9f YH |
1166 | |
1167 | set_opt(sbi, BG_GC); | |
39133a50 | 1168 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1169 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1170 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1171 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1172 | set_opt(sbi, NOHEAP); |
1751e8a6 | 1173 | sbi->sb->s_flags |= SB_LAZYTIME; |
69e9e427 | 1174 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 1175 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
1176 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1177 | set_opt(sbi, DISCARD); | |
1178 | } else { | |
1179 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
1180 | } | |
498c5e9f YH |
1181 | |
1182 | #ifdef CONFIG_F2FS_FS_XATTR | |
1183 | set_opt(sbi, XATTR_USER); | |
1184 | #endif | |
1185 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1186 | set_opt(sbi, POSIX_ACL); | |
1187 | #endif | |
36dbd328 CY |
1188 | |
1189 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1190 | f2fs_build_fault_attr(sbi, 0); | |
1191 | #endif | |
498c5e9f YH |
1192 | } |
1193 | ||
ea676733 JK |
1194 | #ifdef CONFIG_QUOTA |
1195 | static int f2fs_enable_quotas(struct super_block *sb); | |
1196 | #endif | |
696c018c NJ |
1197 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1198 | { | |
1199 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1200 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1201 | unsigned long old_sb_flags; |
696c018c | 1202 | int err, active_logs; |
876dc59e GZ |
1203 | bool need_restart_gc = false; |
1204 | bool need_stop_gc = false; | |
9cd81ce3 | 1205 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
2443b8b3 CY |
1206 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1207 | struct f2fs_fault_info ffi = sbi->fault_info; | |
1208 | #endif | |
4b2414d0 CY |
1209 | #ifdef CONFIG_QUOTA |
1210 | int s_jquota_fmt; | |
1211 | char *s_qf_names[MAXQUOTAS]; | |
1212 | int i, j; | |
1213 | #endif | |
696c018c NJ |
1214 | |
1215 | /* | |
1216 | * Save the old mount options in case we | |
1217 | * need to restore them. | |
1218 | */ | |
1219 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1220 | old_sb_flags = sb->s_flags; |
696c018c NJ |
1221 | active_logs = sbi->active_logs; |
1222 | ||
4b2414d0 CY |
1223 | #ifdef CONFIG_QUOTA |
1224 | s_jquota_fmt = sbi->s_jquota_fmt; | |
1225 | for (i = 0; i < MAXQUOTAS; i++) { | |
1226 | if (sbi->s_qf_names[i]) { | |
1227 | s_qf_names[i] = kstrdup(sbi->s_qf_names[i], | |
1228 | GFP_KERNEL); | |
1229 | if (!s_qf_names[i]) { | |
1230 | for (j = 0; j < i; j++) | |
1231 | kfree(s_qf_names[j]); | |
1232 | return -ENOMEM; | |
1233 | } | |
1234 | } else { | |
1235 | s_qf_names[i] = NULL; | |
1236 | } | |
1237 | } | |
1238 | #endif | |
1239 | ||
df728b0f | 1240 | /* recover superblocks we couldn't write due to previous RO mount */ |
1751e8a6 | 1241 | if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { |
df728b0f JK |
1242 | err = f2fs_commit_super(sbi, false); |
1243 | f2fs_msg(sb, KERN_INFO, | |
1244 | "Try to recover all the superblocks, ret: %d", err); | |
1245 | if (!err) | |
1246 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1247 | } | |
1248 | ||
498c5e9f | 1249 | default_options(sbi); |
26666c8a | 1250 | |
696c018c NJ |
1251 | /* parse mount options */ |
1252 | err = parse_options(sb, data); | |
1253 | if (err) | |
1254 | goto restore_opts; | |
1255 | ||
1256 | /* | |
1257 | * Previous and new state of filesystem is RO, | |
876dc59e | 1258 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1259 | */ |
1751e8a6 | 1260 | if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) |
696c018c NJ |
1261 | goto skip; |
1262 | ||
ea676733 | 1263 | #ifdef CONFIG_QUOTA |
1751e8a6 | 1264 | if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { |
0abd675e CY |
1265 | err = dquot_suspend(sb, -1); |
1266 | if (err < 0) | |
1267 | goto restore_opts; | |
1268 | } else { | |
1269 | /* dquot_resume needs RW */ | |
1751e8a6 | 1270 | sb->s_flags &= ~SB_RDONLY; |
ea676733 JK |
1271 | if (sb_any_quota_suspended(sb)) { |
1272 | dquot_resume(sb, -1); | |
1273 | } else if (f2fs_sb_has_quota_ino(sb)) { | |
1274 | err = f2fs_enable_quotas(sb); | |
1275 | if (err) | |
1276 | goto restore_opts; | |
1277 | } | |
0abd675e | 1278 | } |
ea676733 | 1279 | #endif |
9cd81ce3 CY |
1280 | /* disallow enable/disable extent_cache dynamically */ |
1281 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1282 | err = -EINVAL; | |
1283 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1284 | "switch extent_cache option is not allowed"); | |
1285 | goto restore_opts; | |
1286 | } | |
1287 | ||
696c018c NJ |
1288 | /* |
1289 | * We stop the GC thread if FS is mounted as RO | |
1290 | * or if background_gc = off is passed in mount | |
1291 | * option. Also sync the filesystem. | |
1292 | */ | |
1751e8a6 | 1293 | if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) { |
696c018c NJ |
1294 | if (sbi->gc_thread) { |
1295 | stop_gc_thread(sbi); | |
876dc59e | 1296 | need_restart_gc = true; |
696c018c | 1297 | } |
aba291b3 | 1298 | } else if (!sbi->gc_thread) { |
696c018c NJ |
1299 | err = start_gc_thread(sbi); |
1300 | if (err) | |
1301 | goto restore_opts; | |
876dc59e GZ |
1302 | need_stop_gc = true; |
1303 | } | |
1304 | ||
1751e8a6 | 1305 | if (*flags & SB_RDONLY) { |
faa0e55b JK |
1306 | writeback_inodes_sb(sb, WB_REASON_SYNC); |
1307 | sync_inodes_sb(sb); | |
1308 | ||
1309 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1310 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1311 | f2fs_sync_fs(sb, 1); | |
1312 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1313 | } | |
1314 | ||
876dc59e GZ |
1315 | /* |
1316 | * We stop issue flush thread if FS is mounted as RO | |
1317 | * or if flush_merge is not passed in mount option. | |
1318 | */ | |
1751e8a6 | 1319 | if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { |
5eba8c5d JK |
1320 | clear_opt(sbi, FLUSH_MERGE); |
1321 | destroy_flush_cmd_control(sbi, false); | |
1322 | } else { | |
2163d198 GZ |
1323 | err = create_flush_cmd_control(sbi); |
1324 | if (err) | |
a688b9d9 | 1325 | goto restore_gc; |
696c018c NJ |
1326 | } |
1327 | skip: | |
4b2414d0 CY |
1328 | #ifdef CONFIG_QUOTA |
1329 | /* Release old quota file names */ | |
1330 | for (i = 0; i < MAXQUOTAS; i++) | |
1331 | kfree(s_qf_names[i]); | |
1332 | #endif | |
696c018c | 1333 | /* Update the POSIXACL Flag */ |
1751e8a6 LT |
1334 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
1335 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
df728b0f | 1336 | |
696c018c | 1337 | return 0; |
876dc59e GZ |
1338 | restore_gc: |
1339 | if (need_restart_gc) { | |
1340 | if (start_gc_thread(sbi)) | |
1341 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1342 | "background gc thread has stopped"); |
876dc59e GZ |
1343 | } else if (need_stop_gc) { |
1344 | stop_gc_thread(sbi); | |
1345 | } | |
696c018c | 1346 | restore_opts: |
4b2414d0 CY |
1347 | #ifdef CONFIG_QUOTA |
1348 | sbi->s_jquota_fmt = s_jquota_fmt; | |
1349 | for (i = 0; i < MAXQUOTAS; i++) { | |
1350 | kfree(sbi->s_qf_names[i]); | |
1351 | sbi->s_qf_names[i] = s_qf_names[i]; | |
1352 | } | |
1353 | #endif | |
696c018c NJ |
1354 | sbi->mount_opt = org_mount_opt; |
1355 | sbi->active_logs = active_logs; | |
0abd675e | 1356 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1357 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1358 | sbi->fault_info = ffi; | |
1359 | #endif | |
696c018c NJ |
1360 | return err; |
1361 | } | |
1362 | ||
0abd675e CY |
1363 | #ifdef CONFIG_QUOTA |
1364 | /* Read data from quotafile */ | |
1365 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1366 | size_t len, loff_t off) | |
1367 | { | |
1368 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1369 | struct address_space *mapping = inode->i_mapping; | |
1370 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1371 | int offset = off & (sb->s_blocksize - 1); | |
1372 | int tocopy; | |
1373 | size_t toread; | |
1374 | loff_t i_size = i_size_read(inode); | |
1375 | struct page *page; | |
1376 | char *kaddr; | |
1377 | ||
1378 | if (off > i_size) | |
1379 | return 0; | |
1380 | ||
1381 | if (off + len > i_size) | |
1382 | len = i_size - off; | |
1383 | toread = len; | |
1384 | while (toread > 0) { | |
1385 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1386 | repeat: | |
1387 | page = read_mapping_page(mapping, blkidx, NULL); | |
4e46a023 JK |
1388 | if (IS_ERR(page)) { |
1389 | if (PTR_ERR(page) == -ENOMEM) { | |
1390 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1391 | goto repeat; | |
1392 | } | |
0abd675e | 1393 | return PTR_ERR(page); |
4e46a023 | 1394 | } |
0abd675e CY |
1395 | |
1396 | lock_page(page); | |
1397 | ||
1398 | if (unlikely(page->mapping != mapping)) { | |
1399 | f2fs_put_page(page, 1); | |
1400 | goto repeat; | |
1401 | } | |
1402 | if (unlikely(!PageUptodate(page))) { | |
1403 | f2fs_put_page(page, 1); | |
1404 | return -EIO; | |
1405 | } | |
1406 | ||
1407 | kaddr = kmap_atomic(page); | |
1408 | memcpy(data, kaddr + offset, tocopy); | |
1409 | kunmap_atomic(kaddr); | |
1410 | f2fs_put_page(page, 1); | |
1411 | ||
1412 | offset = 0; | |
1413 | toread -= tocopy; | |
1414 | data += tocopy; | |
1415 | blkidx++; | |
1416 | } | |
1417 | return len; | |
1418 | } | |
1419 | ||
1420 | /* Write to quotafile */ | |
1421 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1422 | const char *data, size_t len, loff_t off) | |
1423 | { | |
1424 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1425 | struct address_space *mapping = inode->i_mapping; | |
1426 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1427 | int offset = off & (sb->s_blocksize - 1); | |
1428 | size_t towrite = len; | |
1429 | struct page *page; | |
1430 | char *kaddr; | |
1431 | int err = 0; | |
1432 | int tocopy; | |
1433 | ||
1434 | while (towrite > 0) { | |
1435 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1436 | towrite); | |
4e46a023 | 1437 | retry: |
0abd675e CY |
1438 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, |
1439 | &page, NULL); | |
4e46a023 JK |
1440 | if (unlikely(err)) { |
1441 | if (err == -ENOMEM) { | |
1442 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1443 | goto retry; | |
1444 | } | |
0abd675e | 1445 | break; |
4e46a023 | 1446 | } |
0abd675e CY |
1447 | |
1448 | kaddr = kmap_atomic(page); | |
1449 | memcpy(kaddr + offset, data, tocopy); | |
1450 | kunmap_atomic(kaddr); | |
1451 | flush_dcache_page(page); | |
1452 | ||
1453 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1454 | page, NULL); | |
1455 | offset = 0; | |
1456 | towrite -= tocopy; | |
1457 | off += tocopy; | |
1458 | data += tocopy; | |
1459 | cond_resched(); | |
1460 | } | |
1461 | ||
1462 | if (len == towrite) | |
6e5b5d41 | 1463 | return err; |
0abd675e CY |
1464 | inode->i_mtime = inode->i_ctime = current_time(inode); |
1465 | f2fs_mark_inode_dirty_sync(inode, false); | |
1466 | return len - towrite; | |
1467 | } | |
1468 | ||
1469 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1470 | { | |
1471 | return F2FS_I(inode)->i_dquot; | |
1472 | } | |
1473 | ||
1474 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1475 | { | |
1476 | return &F2FS_I(inode)->i_reserved_quota; | |
1477 | } | |
1478 | ||
4b2414d0 CY |
1479 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1480 | { | |
1481 | return dquot_quota_on_mount(sbi->sb, sbi->s_qf_names[type], | |
1482 | sbi->s_jquota_fmt, type); | |
1483 | } | |
1484 | ||
ea676733 | 1485 | int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) |
4b2414d0 | 1486 | { |
ea676733 JK |
1487 | int enabled = 0; |
1488 | int i, err; | |
1489 | ||
1490 | if (f2fs_sb_has_quota_ino(sbi->sb) && rdonly) { | |
1491 | err = f2fs_enable_quotas(sbi->sb); | |
1492 | if (err) { | |
1493 | f2fs_msg(sbi->sb, KERN_ERR, | |
1494 | "Cannot turn on quota_ino: %d", err); | |
1495 | return 0; | |
1496 | } | |
1497 | return 1; | |
1498 | } | |
4b2414d0 CY |
1499 | |
1500 | for (i = 0; i < MAXQUOTAS; i++) { | |
1501 | if (sbi->s_qf_names[i]) { | |
ea676733 JK |
1502 | err = f2fs_quota_on_mount(sbi, i); |
1503 | if (!err) { | |
1504 | enabled = 1; | |
1505 | continue; | |
1506 | } | |
1507 | f2fs_msg(sbi->sb, KERN_ERR, | |
1508 | "Cannot turn on quotas: %d on %d", err, i); | |
4b2414d0 CY |
1509 | } |
1510 | } | |
ea676733 JK |
1511 | return enabled; |
1512 | } | |
1513 | ||
1514 | static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, | |
1515 | unsigned int flags) | |
1516 | { | |
1517 | struct inode *qf_inode; | |
1518 | unsigned long qf_inum; | |
1519 | int err; | |
1520 | ||
1521 | BUG_ON(!f2fs_sb_has_quota_ino(sb)); | |
1522 | ||
1523 | qf_inum = f2fs_qf_ino(sb, type); | |
1524 | if (!qf_inum) | |
1525 | return -EPERM; | |
1526 | ||
1527 | qf_inode = f2fs_iget(sb, qf_inum); | |
1528 | if (IS_ERR(qf_inode)) { | |
1529 | f2fs_msg(sb, KERN_ERR, | |
1530 | "Bad quota inode %u:%lu", type, qf_inum); | |
1531 | return PTR_ERR(qf_inode); | |
1532 | } | |
1533 | ||
1534 | /* Don't account quota for quota files to avoid recursion */ | |
1535 | qf_inode->i_flags |= S_NOQUOTA; | |
1536 | err = dquot_enable(qf_inode, type, format_id, flags); | |
1537 | iput(qf_inode); | |
1538 | return err; | |
1539 | } | |
1540 | ||
1541 | static int f2fs_enable_quotas(struct super_block *sb) | |
1542 | { | |
1543 | int type, err = 0; | |
1544 | unsigned long qf_inum; | |
1545 | bool quota_mopt[MAXQUOTAS] = { | |
1546 | test_opt(F2FS_SB(sb), USRQUOTA), | |
1547 | test_opt(F2FS_SB(sb), GRPQUOTA), | |
1548 | test_opt(F2FS_SB(sb), PRJQUOTA), | |
1549 | }; | |
1550 | ||
1551 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; | |
1552 | for (type = 0; type < MAXQUOTAS; type++) { | |
1553 | qf_inum = f2fs_qf_ino(sb, type); | |
1554 | if (qf_inum) { | |
1555 | err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, | |
1556 | DQUOT_USAGE_ENABLED | | |
1557 | (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); | |
1558 | if (err) { | |
1559 | f2fs_msg(sb, KERN_ERR, | |
1560 | "Failed to enable quota tracking " | |
1561 | "(type=%d, err=%d). Please run " | |
1562 | "fsck to fix.", type, err); | |
1563 | for (type--; type >= 0; type--) | |
1564 | dquot_quota_off(sb, type); | |
1565 | return err; | |
1566 | } | |
4b2414d0 CY |
1567 | } |
1568 | } | |
ea676733 | 1569 | return 0; |
4b2414d0 CY |
1570 | } |
1571 | ||
0abd675e CY |
1572 | static int f2fs_quota_sync(struct super_block *sb, int type) |
1573 | { | |
1574 | struct quota_info *dqopt = sb_dqopt(sb); | |
1575 | int cnt; | |
1576 | int ret; | |
1577 | ||
1578 | ret = dquot_writeback_dquots(sb, type); | |
1579 | if (ret) | |
1580 | return ret; | |
1581 | ||
1582 | /* | |
1583 | * Now when everything is written we can discard the pagecache so | |
1584 | * that userspace sees the changes. | |
1585 | */ | |
1586 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1587 | if (type != -1 && cnt != type) | |
1588 | continue; | |
1589 | if (!sb_has_quota_active(sb, cnt)) | |
1590 | continue; | |
1591 | ||
1592 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1593 | if (ret) | |
1594 | return ret; | |
1595 | ||
1596 | inode_lock(dqopt->files[cnt]); | |
1597 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1598 | inode_unlock(dqopt->files[cnt]); | |
1599 | } | |
1600 | return 0; | |
1601 | } | |
1602 | ||
1603 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1604 | const struct path *path) | |
1605 | { | |
1606 | struct inode *inode; | |
1607 | int err; | |
1608 | ||
9a20d391 | 1609 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1610 | if (err) |
1611 | return err; | |
1612 | ||
1613 | err = dquot_quota_on(sb, type, format_id, path); | |
1614 | if (err) | |
1615 | return err; | |
1616 | ||
1617 | inode = d_inode(path->dentry); | |
1618 | ||
1619 | inode_lock(inode); | |
1620 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1621 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1622 | S_NOATIME | S_IMMUTABLE); | |
1623 | inode_unlock(inode); | |
1624 | f2fs_mark_inode_dirty_sync(inode, false); | |
1625 | ||
1626 | return 0; | |
1627 | } | |
1628 | ||
1629 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1630 | { | |
1631 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1632 | int err; | |
1633 | ||
1634 | if (!inode || !igrab(inode)) | |
1635 | return dquot_quota_off(sb, type); | |
1636 | ||
9a20d391 | 1637 | f2fs_quota_sync(sb, type); |
0abd675e CY |
1638 | |
1639 | err = dquot_quota_off(sb, type); | |
ea676733 | 1640 | if (err || f2fs_sb_has_quota_ino(sb)) |
0abd675e CY |
1641 | goto out_put; |
1642 | ||
1643 | inode_lock(inode); | |
1644 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1645 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1646 | inode_unlock(inode); | |
1647 | f2fs_mark_inode_dirty_sync(inode, false); | |
1648 | out_put: | |
1649 | iput(inode); | |
1650 | return err; | |
1651 | } | |
1652 | ||
4b2414d0 | 1653 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1654 | { |
1655 | int type; | |
1656 | ||
1657 | for (type = 0; type < MAXQUOTAS; type++) | |
1658 | f2fs_quota_off(sb, type); | |
1659 | } | |
1660 | ||
5c57132e CY |
1661 | int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
1662 | { | |
1663 | *projid = F2FS_I(inode)->i_projid; | |
1664 | return 0; | |
1665 | } | |
1666 | ||
0abd675e CY |
1667 | static const struct dquot_operations f2fs_quota_operations = { |
1668 | .get_reserved_space = f2fs_get_reserved_space, | |
1669 | .write_dquot = dquot_commit, | |
1670 | .acquire_dquot = dquot_acquire, | |
1671 | .release_dquot = dquot_release, | |
1672 | .mark_dirty = dquot_mark_dquot_dirty, | |
1673 | .write_info = dquot_commit_info, | |
1674 | .alloc_dquot = dquot_alloc, | |
1675 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1676 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1677 | .get_next_id = dquot_get_next_id, |
1678 | }; | |
1679 | ||
1680 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1681 | .quota_on = f2fs_quota_on, | |
1682 | .quota_off = f2fs_quota_off, | |
1683 | .quota_sync = f2fs_quota_sync, | |
1684 | .get_state = dquot_get_state, | |
1685 | .set_info = dquot_set_dqinfo, | |
1686 | .get_dqblk = dquot_get_dqblk, | |
1687 | .set_dqblk = dquot_set_dqblk, | |
1688 | .get_nextdqblk = dquot_get_next_dqblk, | |
1689 | }; | |
1690 | #else | |
4b2414d0 | 1691 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1692 | { |
1693 | } | |
1694 | #endif | |
1695 | ||
f62fc9f9 | 1696 | static const struct super_operations f2fs_sops = { |
aff063e2 | 1697 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 1698 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1699 | .destroy_inode = f2fs_destroy_inode, |
1700 | .write_inode = f2fs_write_inode, | |
b3783873 | 1701 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1702 | .show_options = f2fs_show_options, |
0abd675e CY |
1703 | #ifdef CONFIG_QUOTA |
1704 | .quota_read = f2fs_quota_read, | |
1705 | .quota_write = f2fs_quota_write, | |
1706 | .get_dquots = f2fs_get_dquots, | |
1707 | #endif | |
aff063e2 JK |
1708 | .evict_inode = f2fs_evict_inode, |
1709 | .put_super = f2fs_put_super, | |
1710 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1711 | .freeze_fs = f2fs_freeze, |
1712 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1713 | .statfs = f2fs_statfs, |
696c018c | 1714 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1715 | }; |
1716 | ||
0b81d077 JK |
1717 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1718 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1719 | { | |
1720 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1721 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1722 | ctx, len, NULL); | |
1723 | } | |
1724 | ||
1725 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1726 | void *fs_data) | |
1727 | { | |
1728 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1729 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1730 | ctx, len, fs_data, XATTR_CREATE); | |
1731 | } | |
1732 | ||
1733 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1734 | { | |
1735 | return S_ISLNK(inode->i_mode) ? | |
1736 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1737 | } | |
1738 | ||
6f69f0ed | 1739 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1740 | .key_prefix = "f2fs:", |
0b81d077 JK |
1741 | .get_context = f2fs_get_context, |
1742 | .set_context = f2fs_set_context, | |
0b81d077 JK |
1743 | .empty_dir = f2fs_empty_dir, |
1744 | .max_namelen = f2fs_max_namelen, | |
1745 | }; | |
0b81d077 JK |
1746 | #endif |
1747 | ||
aff063e2 JK |
1748 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1749 | u64 ino, u32 generation) | |
1750 | { | |
1751 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1752 | struct inode *inode; | |
1753 | ||
d6b7d4b3 | 1754 | if (check_nid_range(sbi, ino)) |
910bb12d | 1755 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1756 | |
1757 | /* | |
1758 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1759 | * However f2fs_iget currently does appropriate checks to handle stale | |
1760 | * inodes so everything is OK. | |
1761 | */ | |
1762 | inode = f2fs_iget(sb, ino); | |
1763 | if (IS_ERR(inode)) | |
1764 | return ERR_CAST(inode); | |
6bacf52f | 1765 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1766 | /* we didn't find the right inode.. */ |
1767 | iput(inode); | |
1768 | return ERR_PTR(-ESTALE); | |
1769 | } | |
1770 | return inode; | |
1771 | } | |
1772 | ||
1773 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1774 | int fh_len, int fh_type) | |
1775 | { | |
1776 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1777 | f2fs_nfs_get_inode); | |
1778 | } | |
1779 | ||
1780 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1781 | int fh_len, int fh_type) | |
1782 | { | |
1783 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1784 | f2fs_nfs_get_inode); | |
1785 | } | |
1786 | ||
1787 | static const struct export_operations f2fs_export_ops = { | |
1788 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1789 | .fh_to_parent = f2fs_fh_to_parent, | |
1790 | .get_parent = f2fs_get_parent, | |
1791 | }; | |
1792 | ||
e0afc4d6 | 1793 | static loff_t max_file_blocks(void) |
aff063e2 | 1794 | { |
7a2af766 | 1795 | loff_t result = 0; |
aff063e2 JK |
1796 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1797 | ||
7a2af766 CY |
1798 | /* |
1799 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
6afc662e | 1800 | * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more |
7a2af766 CY |
1801 | * space in inode.i_addr, it will be more safe to reassign |
1802 | * result as zero. | |
1803 | */ | |
1804 | ||
aff063e2 JK |
1805 | /* two direct node blocks */ |
1806 | result += (leaf_count * 2); | |
1807 | ||
1808 | /* two indirect node blocks */ | |
1809 | leaf_count *= NIDS_PER_BLOCK; | |
1810 | result += (leaf_count * 2); | |
1811 | ||
1812 | /* one double indirect node block */ | |
1813 | leaf_count *= NIDS_PER_BLOCK; | |
1814 | result += leaf_count; | |
1815 | ||
aff063e2 JK |
1816 | return result; |
1817 | } | |
1818 | ||
fd694733 JK |
1819 | static int __f2fs_commit_super(struct buffer_head *bh, |
1820 | struct f2fs_super_block *super) | |
1821 | { | |
1822 | lock_buffer(bh); | |
1823 | if (super) | |
1824 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
1825 | set_buffer_uptodate(bh); | |
1826 | set_buffer_dirty(bh); | |
1827 | unlock_buffer(bh); | |
1828 | ||
1829 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1830 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1831 | } |
1832 | ||
df728b0f | 1833 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1834 | struct buffer_head *bh) |
9a59b62f | 1835 | { |
fd694733 JK |
1836 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1837 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1838 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1839 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1840 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1841 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1842 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1843 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1844 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1845 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1846 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1847 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1848 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1849 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1850 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1851 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1852 | u64 main_end_blkaddr = main_blkaddr + |
1853 | (segment_count_main << log_blocks_per_seg); | |
1854 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1855 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1856 | |
1857 | if (segment0_blkaddr != cp_blkaddr) { | |
1858 | f2fs_msg(sb, KERN_INFO, | |
1859 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1860 | segment0_blkaddr, cp_blkaddr); | |
1861 | return true; | |
1862 | } | |
1863 | ||
1864 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1865 | sit_blkaddr) { | |
1866 | f2fs_msg(sb, KERN_INFO, | |
1867 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1868 | cp_blkaddr, sit_blkaddr, | |
1869 | segment_count_ckpt << log_blocks_per_seg); | |
1870 | return true; | |
1871 | } | |
1872 | ||
1873 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1874 | nat_blkaddr) { | |
1875 | f2fs_msg(sb, KERN_INFO, | |
1876 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1877 | sit_blkaddr, nat_blkaddr, | |
1878 | segment_count_sit << log_blocks_per_seg); | |
1879 | return true; | |
1880 | } | |
1881 | ||
1882 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1883 | ssa_blkaddr) { | |
1884 | f2fs_msg(sb, KERN_INFO, | |
1885 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1886 | nat_blkaddr, ssa_blkaddr, | |
1887 | segment_count_nat << log_blocks_per_seg); | |
1888 | return true; | |
1889 | } | |
1890 | ||
1891 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
1892 | main_blkaddr) { | |
1893 | f2fs_msg(sb, KERN_INFO, | |
1894 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
1895 | ssa_blkaddr, main_blkaddr, | |
1896 | segment_count_ssa << log_blocks_per_seg); | |
1897 | return true; | |
1898 | } | |
1899 | ||
fd694733 | 1900 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 1901 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 1902 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 1903 | main_blkaddr, |
fd694733 JK |
1904 | segment0_blkaddr + |
1905 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
1906 | segment_count_main << log_blocks_per_seg); |
1907 | return true; | |
fd694733 JK |
1908 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
1909 | int err = 0; | |
1910 | char *res; | |
1911 | ||
1912 | /* fix in-memory information all the time */ | |
1913 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
1914 | segment0_blkaddr) >> log_blocks_per_seg); | |
1915 | ||
1916 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 1917 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
1918 | res = "internally"; |
1919 | } else { | |
1920 | err = __f2fs_commit_super(bh, NULL); | |
1921 | res = err ? "failed" : "done"; | |
1922 | } | |
1923 | f2fs_msg(sb, KERN_INFO, | |
1924 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
1925 | res, main_blkaddr, | |
1926 | segment0_blkaddr + | |
1927 | (segment_count << log_blocks_per_seg), | |
1928 | segment_count_main << log_blocks_per_seg); | |
1929 | if (err) | |
1930 | return true; | |
9a59b62f | 1931 | } |
9a59b62f CY |
1932 | return false; |
1933 | } | |
1934 | ||
df728b0f | 1935 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 1936 | struct buffer_head *bh) |
aff063e2 | 1937 | { |
fd694733 JK |
1938 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1939 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1940 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
1941 | unsigned int blocksize; |
1942 | ||
a07ef784 NJ |
1943 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
1944 | f2fs_msg(sb, KERN_INFO, | |
1945 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
1946 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 1947 | return 1; |
a07ef784 | 1948 | } |
aff063e2 | 1949 | |
5c9b4692 | 1950 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 1951 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 1952 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 1953 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 1954 | PAGE_SIZE); |
5c9b4692 | 1955 | return 1; |
1956 | } | |
1957 | ||
aff063e2 JK |
1958 | /* Currently, support only 4KB block size */ |
1959 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 1960 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
1961 | f2fs_msg(sb, KERN_INFO, |
1962 | "Invalid blocksize (%u), supports only 4KB\n", | |
1963 | blocksize); | |
aff063e2 | 1964 | return 1; |
a07ef784 | 1965 | } |
5c9b4692 | 1966 | |
9a59b62f CY |
1967 | /* check log blocks per segment */ |
1968 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
1969 | f2fs_msg(sb, KERN_INFO, | |
1970 | "Invalid log blocks per segment (%u)\n", | |
1971 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
1972 | return 1; | |
1973 | } | |
1974 | ||
55cf9cb6 CY |
1975 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
1976 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
1977 | F2FS_MAX_LOG_SECTOR_SIZE || | |
1978 | le32_to_cpu(raw_super->log_sectorsize) < | |
1979 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
1980 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
1981 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1982 | return 1; |
a07ef784 | 1983 | } |
55cf9cb6 CY |
1984 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
1985 | le32_to_cpu(raw_super->log_sectorsize) != | |
1986 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
1987 | f2fs_msg(sb, KERN_INFO, | |
1988 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
1989 | le32_to_cpu(raw_super->log_sectors_per_block), | |
1990 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 1991 | return 1; |
a07ef784 | 1992 | } |
9a59b62f CY |
1993 | |
1994 | /* check reserved ino info */ | |
1995 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
1996 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
1997 | le32_to_cpu(raw_super->root_ino) != 3) { | |
1998 | f2fs_msg(sb, KERN_INFO, | |
1999 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
2000 | le32_to_cpu(raw_super->node_ino), | |
2001 | le32_to_cpu(raw_super->meta_ino), | |
2002 | le32_to_cpu(raw_super->root_ino)); | |
2003 | return 1; | |
2004 | } | |
2005 | ||
b9dd4618 JQ |
2006 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
2007 | f2fs_msg(sb, KERN_INFO, | |
2008 | "Invalid segment count (%u)", | |
2009 | le32_to_cpu(raw_super->segment_count)); | |
2010 | return 1; | |
2011 | } | |
2012 | ||
9a59b62f | 2013 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 2014 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
2015 | return 1; |
2016 | ||
aff063e2 JK |
2017 | return 0; |
2018 | } | |
2019 | ||
984ec63c | 2020 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
2021 | { |
2022 | unsigned int total, fsmeta; | |
577e3495 JK |
2023 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
2024 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 2025 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
2026 | unsigned int main_segs, blocks_per_seg; |
2027 | int i; | |
aff063e2 JK |
2028 | |
2029 | total = le32_to_cpu(raw_super->segment_count); | |
2030 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
2031 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
2032 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
2033 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
2034 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
2035 | ||
6bacf52f | 2036 | if (unlikely(fsmeta >= total)) |
aff063e2 | 2037 | return 1; |
577e3495 | 2038 | |
2040fce8 JK |
2039 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
2040 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
2041 | ||
2042 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
2043 | ovp_segments == 0 || reserved_segments == 0)) { | |
2044 | f2fs_msg(sbi->sb, KERN_ERR, | |
2045 | "Wrong layout: check mkfs.f2fs version"); | |
2046 | return 1; | |
2047 | } | |
2048 | ||
15d3042a JQ |
2049 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
2050 | blocks_per_seg = sbi->blocks_per_seg; | |
2051 | ||
2052 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
2053 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
2054 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
2055 | return 1; | |
2056 | } | |
2057 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
2058 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
2059 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
2060 | return 1; | |
2061 | } | |
2062 | ||
1e968fdf | 2063 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
2064 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
2065 | return 1; | |
2066 | } | |
aff063e2 JK |
2067 | return 0; |
2068 | } | |
2069 | ||
2070 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
2071 | { | |
2072 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 2073 | int i, j; |
aff063e2 JK |
2074 | |
2075 | sbi->log_sectors_per_block = | |
2076 | le32_to_cpu(raw_super->log_sectors_per_block); | |
2077 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
2078 | sbi->blocksize = 1 << sbi->log_blocksize; | |
2079 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2080 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
2081 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2082 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2083 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
2084 | sbi->total_node_count = | |
2085 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
2086 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
2087 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
2088 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
2089 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 2090 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 2091 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 2092 | |
ab9fa662 | 2093 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 2094 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 2095 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 2096 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 2097 | |
35782b23 JK |
2098 | for (i = 0; i < NR_COUNT_TYPE; i++) |
2099 | atomic_set(&sbi->nr_pages[i], 0); | |
2100 | ||
687de7f1 JK |
2101 | atomic_set(&sbi->wb_sync_req, 0); |
2102 | ||
2658e50d JK |
2103 | INIT_LIST_HEAD(&sbi->s_list); |
2104 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
2105 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
2106 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
2107 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 2108 | spin_lock_init(&sbi->cp_lock); |
1228b482 CY |
2109 | |
2110 | sbi->dirty_device = 0; | |
2111 | spin_lock_init(&sbi->dev_lock); | |
aff063e2 JK |
2112 | } |
2113 | ||
523be8a6 JK |
2114 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
2115 | { | |
35782b23 | 2116 | int err; |
41382ec4 | 2117 | |
513c5f37 JK |
2118 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
2119 | if (err) | |
2120 | return err; | |
2121 | ||
2122 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 2123 | GFP_KERNEL); |
523be8a6 JK |
2124 | } |
2125 | ||
178053e2 | 2126 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 2127 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 2128 | { |
3c62be17 | 2129 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
2130 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
2131 | sector_t sector = 0; | |
2132 | struct blk_zone *zones; | |
2133 | unsigned int i, nr_zones; | |
2134 | unsigned int n = 0; | |
2135 | int err = -EIO; | |
2136 | ||
2137 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
2138 | return 0; | |
2139 | ||
3c62be17 | 2140 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 2141 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 2142 | return -EINVAL; |
f99e8648 | 2143 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
2144 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2145 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2146 | return -EINVAL; | |
178053e2 | 2147 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2148 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2149 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2150 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2151 | FDEV(devi).nr_blkz++; |
178053e2 | 2152 | |
4e6aad29 CY |
2153 | FDEV(devi).blkz_type = f2fs_kmalloc(sbi, FDEV(devi).nr_blkz, |
2154 | GFP_KERNEL); | |
3c62be17 | 2155 | if (!FDEV(devi).blkz_type) |
178053e2 DLM |
2156 | return -ENOMEM; |
2157 | ||
2158 | #define F2FS_REPORT_NR_ZONES 4096 | |
2159 | ||
4e6aad29 CY |
2160 | zones = f2fs_kzalloc(sbi, sizeof(struct blk_zone) * |
2161 | F2FS_REPORT_NR_ZONES, GFP_KERNEL); | |
178053e2 DLM |
2162 | if (!zones) |
2163 | return -ENOMEM; | |
2164 | ||
2165 | /* Get block zones type */ | |
2166 | while (zones && sector < nr_sectors) { | |
2167 | ||
2168 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2169 | err = blkdev_report_zones(bdev, sector, | |
2170 | zones, &nr_zones, | |
2171 | GFP_KERNEL); | |
2172 | if (err) | |
2173 | break; | |
2174 | if (!nr_zones) { | |
2175 | err = -EIO; | |
2176 | break; | |
2177 | } | |
2178 | ||
2179 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2180 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2181 | sector += zones[i].len; |
2182 | n++; | |
2183 | } | |
2184 | } | |
2185 | ||
2186 | kfree(zones); | |
2187 | ||
2188 | return err; | |
2189 | } | |
2190 | #endif | |
2191 | ||
9076a75f GZ |
2192 | /* |
2193 | * Read f2fs raw super block. | |
2b39e907 SL |
2194 | * Because we have two copies of super block, so read both of them |
2195 | * to get the first valid one. If any one of them is broken, we pass | |
2196 | * them recovery flag back to the caller. | |
9076a75f | 2197 | */ |
df728b0f | 2198 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2199 | struct f2fs_super_block **raw_super, |
e8240f65 | 2200 | int *valid_super_block, int *recovery) |
14d7e9de | 2201 | { |
df728b0f | 2202 | struct super_block *sb = sbi->sb; |
2b39e907 | 2203 | int block; |
e8240f65 | 2204 | struct buffer_head *bh; |
fd694733 | 2205 | struct f2fs_super_block *super; |
da554e48 | 2206 | int err = 0; |
14d7e9de | 2207 | |
b39f0de2 YH |
2208 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2209 | if (!super) | |
2210 | return -ENOMEM; | |
2b39e907 SL |
2211 | |
2212 | for (block = 0; block < 2; block++) { | |
2213 | bh = sb_bread(sb, block); | |
2214 | if (!bh) { | |
2215 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2216 | block + 1); |
2b39e907 SL |
2217 | err = -EIO; |
2218 | continue; | |
2219 | } | |
14d7e9de | 2220 | |
2b39e907 | 2221 | /* sanity checking of raw super */ |
df728b0f | 2222 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
2223 | f2fs_msg(sb, KERN_ERR, |
2224 | "Can't find valid F2FS filesystem in %dth superblock", | |
2225 | block + 1); | |
2226 | err = -EINVAL; | |
2227 | brelse(bh); | |
2228 | continue; | |
2229 | } | |
14d7e9de | 2230 | |
2b39e907 | 2231 | if (!*raw_super) { |
fd694733 JK |
2232 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2233 | sizeof(*super)); | |
2b39e907 SL |
2234 | *valid_super_block = block; |
2235 | *raw_super = super; | |
2236 | } | |
2237 | brelse(bh); | |
da554e48 | 2238 | } |
2239 | ||
2b39e907 SL |
2240 | /* Fail to read any one of the superblocks*/ |
2241 | if (err < 0) | |
2242 | *recovery = 1; | |
da554e48 | 2243 | |
da554e48 | 2244 | /* No valid superblock */ |
2b39e907 | 2245 | if (!*raw_super) |
b39f0de2 | 2246 | kfree(super); |
2b39e907 SL |
2247 | else |
2248 | err = 0; | |
da554e48 | 2249 | |
2b39e907 | 2250 | return err; |
14d7e9de | 2251 | } |
2252 | ||
fd694733 | 2253 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2254 | { |
5d909cdb | 2255 | struct buffer_head *bh; |
26d815ad JK |
2256 | int err; |
2257 | ||
df728b0f JK |
2258 | if ((recover && f2fs_readonly(sbi->sb)) || |
2259 | bdev_read_only(sbi->sb->s_bdev)) { | |
2260 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2261 | return -EROFS; |
df728b0f | 2262 | } |
f2353d7b | 2263 | |
fd694733 JK |
2264 | /* write back-up superblock first */ |
2265 | bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); | |
5d909cdb JK |
2266 | if (!bh) |
2267 | return -EIO; | |
fd694733 | 2268 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2269 | brelse(bh); |
c5bda1c8 CY |
2270 | |
2271 | /* if we are in recovery path, skip writing valid superblock */ | |
2272 | if (recover || err) | |
5d909cdb | 2273 | return err; |
26d815ad JK |
2274 | |
2275 | /* write current valid superblock */ | |
fd694733 JK |
2276 | bh = sb_getblk(sbi->sb, sbi->valid_super_block); |
2277 | if (!bh) | |
2278 | return -EIO; | |
2279 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2280 | brelse(bh); | |
2281 | return err; | |
26d815ad JK |
2282 | } |
2283 | ||
3c62be17 JK |
2284 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2285 | { | |
2286 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2287 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2288 | int i; |
2289 | ||
7bb3a371 MS |
2290 | /* Initialize single device information */ |
2291 | if (!RDEV(0).path[0]) { | |
2292 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2293 | return 0; |
7bb3a371 MS |
2294 | max_devices = 1; |
2295 | } | |
3c62be17 | 2296 | |
7bb3a371 MS |
2297 | /* |
2298 | * Initialize multiple devices information, or single | |
2299 | * zoned block device information. | |
2300 | */ | |
4e6aad29 CY |
2301 | sbi->devs = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_info) * |
2302 | max_devices, GFP_KERNEL); | |
7bb3a371 MS |
2303 | if (!sbi->devs) |
2304 | return -ENOMEM; | |
3c62be17 | 2305 | |
7bb3a371 | 2306 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2307 | |
7bb3a371 MS |
2308 | if (i > 0 && !RDEV(i).path[0]) |
2309 | break; | |
2310 | ||
2311 | if (max_devices == 1) { | |
2312 | /* Single zoned block device mount */ | |
2313 | FDEV(0).bdev = | |
2314 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2315 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2316 | } else { |
2317 | /* Multi-device mount */ | |
2318 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2319 | FDEV(i).total_segments = | |
2320 | le32_to_cpu(RDEV(i).total_segments); | |
2321 | if (i == 0) { | |
2322 | FDEV(i).start_blk = 0; | |
2323 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2324 | (FDEV(i).total_segments << | |
2325 | sbi->log_blocks_per_seg) - 1 + | |
2326 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2327 | } else { | |
2328 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2329 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2330 | (FDEV(i).total_segments << | |
2331 | sbi->log_blocks_per_seg) - 1; | |
2332 | } | |
2333 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2334 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2335 | } |
3c62be17 JK |
2336 | if (IS_ERR(FDEV(i).bdev)) |
2337 | return PTR_ERR(FDEV(i).bdev); | |
2338 | ||
2339 | /* to release errored devices */ | |
2340 | sbi->s_ndevs = i + 1; | |
2341 | ||
2342 | #ifdef CONFIG_BLK_DEV_ZONED | |
2343 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
2344 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
2345 | f2fs_msg(sbi->sb, KERN_ERR, | |
2346 | "Zoned block device feature not enabled\n"); | |
2347 | return -EINVAL; | |
2348 | } | |
2349 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
2350 | if (init_blkz_info(sbi, i)) { | |
2351 | f2fs_msg(sbi->sb, KERN_ERR, | |
2352 | "Failed to initialize F2FS blkzone information"); | |
2353 | return -EINVAL; | |
2354 | } | |
7bb3a371 MS |
2355 | if (max_devices == 1) |
2356 | break; | |
3c62be17 JK |
2357 | f2fs_msg(sbi->sb, KERN_INFO, |
2358 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
2359 | i, FDEV(i).path, | |
2360 | FDEV(i).total_segments, | |
2361 | FDEV(i).start_blk, FDEV(i).end_blk, | |
2362 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
2363 | "Host-aware" : "Host-managed"); | |
2364 | continue; | |
2365 | } | |
2366 | #endif | |
2367 | f2fs_msg(sbi->sb, KERN_INFO, | |
2368 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
2369 | i, FDEV(i).path, | |
2370 | FDEV(i).total_segments, | |
2371 | FDEV(i).start_blk, FDEV(i).end_blk); | |
2372 | } | |
0a595eba JK |
2373 | f2fs_msg(sbi->sb, KERN_INFO, |
2374 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
2375 | return 0; |
2376 | } | |
2377 | ||
aff063e2 JK |
2378 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
2379 | { | |
2380 | struct f2fs_sb_info *sbi; | |
da554e48 | 2381 | struct f2fs_super_block *raw_super; |
aff063e2 | 2382 | struct inode *root; |
99e3e858 | 2383 | int err; |
2adc3505 | 2384 | bool retry = true, need_fsck = false; |
dabc4a5c | 2385 | char *options = NULL; |
e8240f65 | 2386 | int recovery, i, valid_super_block; |
8f1dbbbb | 2387 | struct curseg_info *seg_i; |
aff063e2 | 2388 | |
ed2e621a | 2389 | try_onemore: |
da554e48 | 2390 | err = -EINVAL; |
2391 | raw_super = NULL; | |
e8240f65 | 2392 | valid_super_block = -1; |
da554e48 | 2393 | recovery = 0; |
2394 | ||
aff063e2 JK |
2395 | /* allocate memory for f2fs-specific super block info */ |
2396 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
2397 | if (!sbi) | |
2398 | return -ENOMEM; | |
2399 | ||
df728b0f JK |
2400 | sbi->sb = sb; |
2401 | ||
43b6573b KM |
2402 | /* Load the checksum driver */ |
2403 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
2404 | if (IS_ERR(sbi->s_chksum_driver)) { | |
2405 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
2406 | err = PTR_ERR(sbi->s_chksum_driver); | |
2407 | sbi->s_chksum_driver = NULL; | |
2408 | goto free_sbi; | |
2409 | } | |
2410 | ||
ff9234ad | 2411 | /* set a block size */ |
6bacf52f | 2412 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 2413 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 2414 | goto free_sbi; |
a07ef784 | 2415 | } |
aff063e2 | 2416 | |
df728b0f | 2417 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 2418 | &recovery); |
9076a75f GZ |
2419 | if (err) |
2420 | goto free_sbi; | |
2421 | ||
5fb08372 | 2422 | sb->s_fs_info = sbi; |
52763a4b JK |
2423 | sbi->raw_super = raw_super; |
2424 | ||
704956ec CY |
2425 | /* precompute checksum seed for metadata */ |
2426 | if (f2fs_sb_has_inode_chksum(sb)) | |
2427 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, | |
2428 | sizeof(raw_super->uuid)); | |
2429 | ||
d1b959c8 DLM |
2430 | /* |
2431 | * The BLKZONED feature indicates that the drive was formatted with | |
2432 | * zone alignment optimization. This is optional for host-aware | |
2433 | * devices, but mandatory for host-managed zoned block devices. | |
2434 | */ | |
2435 | #ifndef CONFIG_BLK_DEV_ZONED | |
2436 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
2437 | f2fs_msg(sb, KERN_ERR, | |
2438 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2439 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2440 | goto free_sb_buf; |
2441 | } | |
d1b959c8 | 2442 | #endif |
498c5e9f | 2443 | default_options(sbi); |
aff063e2 | 2444 | /* parse mount options */ |
dabc4a5c JK |
2445 | options = kstrdup((const char *)data, GFP_KERNEL); |
2446 | if (data && !options) { | |
2447 | err = -ENOMEM; | |
aff063e2 | 2448 | goto free_sb_buf; |
dabc4a5c JK |
2449 | } |
2450 | ||
2451 | err = parse_options(sb, options); | |
2452 | if (err) | |
2453 | goto free_options; | |
aff063e2 | 2454 | |
e0afc4d6 CY |
2455 | sbi->max_file_blocks = max_file_blocks(); |
2456 | sb->s_maxbytes = sbi->max_file_blocks << | |
2457 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2458 | sb->s_max_links = F2FS_LINK_MAX; |
2459 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2460 | ||
0abd675e CY |
2461 | #ifdef CONFIG_QUOTA |
2462 | sb->dq_op = &f2fs_quota_operations; | |
ea676733 JK |
2463 | if (f2fs_sb_has_quota_ino(sb)) |
2464 | sb->s_qcop = &dquot_quotactl_sysfile_ops; | |
2465 | else | |
2466 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2467 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
292c196a CY |
2468 | |
2469 | if (f2fs_sb_has_quota_ino(sbi->sb)) { | |
2470 | for (i = 0; i < MAXQUOTAS; i++) { | |
2471 | if (f2fs_qf_ino(sbi->sb, i)) | |
2472 | sbi->nquota_files++; | |
2473 | } | |
2474 | } | |
0abd675e CY |
2475 | #endif |
2476 | ||
aff063e2 | 2477 | sb->s_op = &f2fs_sops; |
ffcc4182 | 2478 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
0b81d077 | 2479 | sb->s_cop = &f2fs_cryptops; |
ffcc4182 | 2480 | #endif |
aff063e2 JK |
2481 | sb->s_xattr = f2fs_xattr_handlers; |
2482 | sb->s_export_op = &f2fs_export_ops; | |
2483 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 | 2484 | sb->s_time_gran = 1; |
1751e8a6 LT |
2485 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
2486 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
85787090 | 2487 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
aff063e2 JK |
2488 | |
2489 | /* init f2fs-specific super block info */ | |
e8240f65 | 2490 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2491 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2492 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2493 | init_rwsem(&sbi->node_write); |
59c9081b | 2494 | init_rwsem(&sbi->node_change); |
315df839 JK |
2495 | |
2496 | /* disallow all the data/node/meta page writes */ | |
2497 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2498 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2499 | |
b0af6d49 CY |
2500 | /* init iostat info */ |
2501 | spin_lock_init(&sbi->iostat_lock); | |
2502 | sbi->iostat_enable = false; | |
2503 | ||
458e6197 | 2504 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2505 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2506 | int j; | |
2507 | ||
4e6aad29 CY |
2508 | sbi->write_io[i] = f2fs_kmalloc(sbi, |
2509 | n * sizeof(struct f2fs_bio_info), | |
2510 | GFP_KERNEL); | |
b63def91 CJ |
2511 | if (!sbi->write_io[i]) { |
2512 | err = -ENOMEM; | |
a912b54d | 2513 | goto free_options; |
b63def91 | 2514 | } |
a912b54d JK |
2515 | |
2516 | for (j = HOT; j < n; j++) { | |
2517 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2518 | sbi->write_io[i][j].sbi = sbi; | |
2519 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2520 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2521 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2522 | } |
458e6197 | 2523 | } |
971767ca | 2524 | |
b873b798 | 2525 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2526 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2527 | init_sb_info(sbi); |
2528 | ||
523be8a6 JK |
2529 | err = init_percpu_info(sbi); |
2530 | if (err) | |
2531 | goto free_options; | |
2532 | ||
0a595eba JK |
2533 | if (F2FS_IO_SIZE(sbi) > 1) { |
2534 | sbi->write_io_dummy = | |
a3ebfe4f | 2535 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2536 | if (!sbi->write_io_dummy) { |
2537 | err = -ENOMEM; | |
0a595eba | 2538 | goto free_options; |
1727f317 | 2539 | } |
0a595eba JK |
2540 | } |
2541 | ||
aff063e2 JK |
2542 | /* get an inode for meta space */ |
2543 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2544 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2545 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2546 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2547 | goto free_io_dummy; |
aff063e2 JK |
2548 | } |
2549 | ||
2550 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2551 | if (err) { |
2552 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2553 | goto free_meta_inode; |
a07ef784 | 2554 | } |
aff063e2 | 2555 | |
3c62be17 JK |
2556 | /* Initialize device list */ |
2557 | err = f2fs_scan_devices(sbi); | |
2558 | if (err) { | |
2559 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2560 | goto free_devices; | |
2561 | } | |
2562 | ||
aff063e2 JK |
2563 | sbi->total_valid_node_count = |
2564 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2565 | percpu_counter_set(&sbi->total_valid_inode_count, |
2566 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2567 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2568 | sbi->total_valid_block_count = | |
2569 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2570 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2571 | sbi->reserved_blocks = 0; |
80d42145 | 2572 | sbi->current_reserved_blocks = 0; |
41382ec4 | 2573 | |
c227f912 CY |
2574 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2575 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2576 | spin_lock_init(&sbi->inode_lock[i]); | |
2577 | } | |
aff063e2 | 2578 | |
1dcc336b CY |
2579 | init_extent_cache_info(sbi); |
2580 | ||
6451e041 | 2581 | init_ino_entry_info(sbi); |
aff063e2 JK |
2582 | |
2583 | /* setup f2fs internal modules */ | |
2584 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2585 | if (err) { |
2586 | f2fs_msg(sb, KERN_ERR, | |
2587 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2588 | goto free_sm; |
a07ef784 | 2589 | } |
aff063e2 | 2590 | err = build_node_manager(sbi); |
a07ef784 NJ |
2591 | if (err) { |
2592 | f2fs_msg(sb, KERN_ERR, | |
2593 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2594 | goto free_nm; |
a07ef784 | 2595 | } |
aff063e2 | 2596 | |
8f1dbbbb SL |
2597 | /* For write statistics */ |
2598 | if (sb->s_bdev->bd_part) | |
2599 | sbi->sectors_written_start = | |
2600 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2601 | ||
2602 | /* Read accumulated write IO statistics if exists */ | |
2603 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2604 | if (__exist_node_summaries(sbi)) | |
2605 | sbi->kbytes_written = | |
b2dde6fc | 2606 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2607 | |
aff063e2 JK |
2608 | build_gc_manager(sbi); |
2609 | ||
2610 | /* get an inode for node space */ | |
2611 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2612 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2613 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2614 | err = PTR_ERR(sbi->node_inode); |
2615 | goto free_nm; | |
2616 | } | |
2617 | ||
aa51d08a JK |
2618 | err = f2fs_build_stats(sbi); |
2619 | if (err) | |
bae01eda | 2620 | goto free_node_inode; |
aa51d08a | 2621 | |
aff063e2 JK |
2622 | /* read root inode and dentry */ |
2623 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2624 | if (IS_ERR(root)) { | |
a07ef784 | 2625 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 | 2626 | err = PTR_ERR(root); |
bae01eda | 2627 | goto free_stats; |
aff063e2 | 2628 | } |
8f99a946 | 2629 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2630 | iput(root); |
8f99a946 | 2631 | err = -EINVAL; |
9d847950 | 2632 | goto free_node_inode; |
8f99a946 | 2633 | } |
aff063e2 JK |
2634 | |
2635 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2636 | if (!sb->s_root) { | |
2637 | err = -ENOMEM; | |
2638 | goto free_root_inode; | |
2639 | } | |
2640 | ||
dc6b2055 | 2641 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2642 | if (err) |
a398101a | 2643 | goto free_root_inode; |
b59d0bae | 2644 | |
ea676733 JK |
2645 | #ifdef CONFIG_QUOTA |
2646 | /* | |
2647 | * Turn on quotas which were not enabled for read-only mounts if | |
2648 | * filesystem has quota feature, so that they are updated correctly. | |
2649 | */ | |
2650 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) { | |
2651 | err = f2fs_enable_quotas(sb); | |
2652 | if (err) { | |
2653 | f2fs_msg(sb, KERN_ERR, | |
2654 | "Cannot turn on quotas: error %d", err); | |
2655 | goto free_sysfs; | |
2656 | } | |
2657 | } | |
2658 | #endif | |
4b2414d0 CY |
2659 | /* if there are nt orphan nodes free them */ |
2660 | err = recover_orphan_inodes(sbi); | |
2661 | if (err) | |
ea676733 | 2662 | goto free_meta; |
4b2414d0 | 2663 | |
6437d1b0 JK |
2664 | /* recover fsynced data */ |
2665 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2666 | /* |
2667 | * mount should be failed, when device has readonly mode, and | |
2668 | * previous checkpoint was not done by clean system shutdown. | |
2669 | */ | |
2670 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2671 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2672 | err = -EROFS; |
4b2414d0 | 2673 | goto free_meta; |
081d78c2 | 2674 | } |
2adc3505 CY |
2675 | |
2676 | if (need_fsck) | |
2677 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2678 | ||
a468f0ef JK |
2679 | if (!retry) |
2680 | goto skip_recovery; | |
2681 | ||
6781eabb JK |
2682 | err = recover_fsync_data(sbi, false); |
2683 | if (err < 0) { | |
2adc3505 | 2684 | need_fsck = true; |
6437d1b0 | 2685 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2686 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 2687 | goto free_meta; |
ed2e621a | 2688 | } |
6781eabb JK |
2689 | } else { |
2690 | err = recover_fsync_data(sbi, true); | |
2691 | ||
2692 | if (!f2fs_readonly(sb) && err > 0) { | |
2693 | err = -EINVAL; | |
2694 | f2fs_msg(sb, KERN_ERR, | |
2695 | "Need to recover fsync data"); | |
ea676733 | 2696 | goto free_meta; |
6781eabb | 2697 | } |
6437d1b0 | 2698 | } |
a468f0ef | 2699 | skip_recovery: |
315df839 JK |
2700 | /* recover_fsync_data() cleared this already */ |
2701 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2702 | |
6437d1b0 JK |
2703 | /* |
2704 | * If filesystem is not mounted as read-only then | |
2705 | * do start the gc_thread. | |
2706 | */ | |
6c029932 | 2707 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2708 | /* After POR, we can run background GC thread.*/ |
2709 | err = start_gc_thread(sbi); | |
2710 | if (err) | |
4b2414d0 | 2711 | goto free_meta; |
6437d1b0 | 2712 | } |
dabc4a5c | 2713 | kfree(options); |
da554e48 | 2714 | |
2715 | /* recover broken superblock */ | |
f2353d7b | 2716 | if (recovery) { |
41214b3c CY |
2717 | err = f2fs_commit_super(sbi, true); |
2718 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2719 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2720 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2721 | } |
2722 | ||
bae01eda CY |
2723 | f2fs_join_shrinker(sbi); |
2724 | ||
1200abb2 JK |
2725 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2726 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2727 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2728 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2729 | return 0; |
6437d1b0 | 2730 | |
4b2414d0 | 2731 | free_meta: |
ea676733 JK |
2732 | #ifdef CONFIG_QUOTA |
2733 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) | |
2734 | f2fs_quota_off_umount(sbi->sb); | |
2735 | #endif | |
0f18b462 | 2736 | f2fs_sync_inode_meta(sbi); |
4b2414d0 CY |
2737 | /* |
2738 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2739 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2740 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2741 | * falls into an infinite loop in sync_meta_pages(). | |
2742 | */ | |
2743 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
ea676733 | 2744 | #ifdef CONFIG_QUOTA |
4b2414d0 | 2745 | free_sysfs: |
ea676733 | 2746 | #endif |
dc6b2055 | 2747 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2748 | free_root_inode: |
2749 | dput(sb->s_root); | |
2750 | sb->s_root = NULL; | |
bae01eda CY |
2751 | free_stats: |
2752 | f2fs_destroy_stats(sbi); | |
aff063e2 | 2753 | free_node_inode: |
d41065e2 | 2754 | release_ino_entry(sbi, true); |
bae01eda | 2755 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
aff063e2 JK |
2756 | iput(sbi->node_inode); |
2757 | free_nm: | |
2758 | destroy_node_manager(sbi); | |
2759 | free_sm: | |
2760 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2761 | free_devices: |
2762 | destroy_device_list(sbi); | |
aff063e2 JK |
2763 | kfree(sbi->ckpt); |
2764 | free_meta_inode: | |
2765 | make_bad_inode(sbi->meta_inode); | |
2766 | iput(sbi->meta_inode); | |
0a595eba JK |
2767 | free_io_dummy: |
2768 | mempool_destroy(sbi->write_io_dummy); | |
dabc4a5c | 2769 | free_options: |
a912b54d JK |
2770 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2771 | kfree(sbi->write_io[i]); | |
523be8a6 | 2772 | destroy_percpu_info(sbi); |
4b2414d0 CY |
2773 | #ifdef CONFIG_QUOTA |
2774 | for (i = 0; i < MAXQUOTAS; i++) | |
2775 | kfree(sbi->s_qf_names[i]); | |
2776 | #endif | |
dabc4a5c | 2777 | kfree(options); |
aff063e2 | 2778 | free_sb_buf: |
b39f0de2 | 2779 | kfree(raw_super); |
aff063e2 | 2780 | free_sbi: |
43b6573b KM |
2781 | if (sbi->s_chksum_driver) |
2782 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2783 | kfree(sbi); |
ed2e621a JK |
2784 | |
2785 | /* give only one another chance */ | |
2786 | if (retry) { | |
9df47ba7 | 2787 | retry = false; |
ed2e621a JK |
2788 | shrink_dcache_sb(sb); |
2789 | goto try_onemore; | |
2790 | } | |
aff063e2 JK |
2791 | return err; |
2792 | } | |
2793 | ||
2794 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2795 | const char *dev_name, void *data) | |
2796 | { | |
2797 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2798 | } | |
2799 | ||
30a5537f JK |
2800 | static void kill_f2fs_super(struct super_block *sb) |
2801 | { | |
cce13252 | 2802 | if (sb->s_root) { |
caf0047e | 2803 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2804 | stop_gc_thread(F2FS_SB(sb)); |
2805 | stop_discard_thread(F2FS_SB(sb)); | |
2806 | } | |
30a5537f JK |
2807 | kill_block_super(sb); |
2808 | } | |
2809 | ||
aff063e2 JK |
2810 | static struct file_system_type f2fs_fs_type = { |
2811 | .owner = THIS_MODULE, | |
2812 | .name = "f2fs", | |
2813 | .mount = f2fs_mount, | |
30a5537f | 2814 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2815 | .fs_flags = FS_REQUIRES_DEV, |
2816 | }; | |
7f78e035 | 2817 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2818 | |
6e6093a8 | 2819 | static int __init init_inodecache(void) |
aff063e2 | 2820 | { |
5d097056 VD |
2821 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2822 | sizeof(struct f2fs_inode_info), 0, | |
2823 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2824 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2825 | return -ENOMEM; |
2826 | return 0; | |
2827 | } | |
2828 | ||
2829 | static void destroy_inodecache(void) | |
2830 | { | |
2831 | /* | |
2832 | * Make sure all delayed rcu free inodes are flushed before we | |
2833 | * destroy cache. | |
2834 | */ | |
2835 | rcu_barrier(); | |
2836 | kmem_cache_destroy(f2fs_inode_cachep); | |
2837 | } | |
2838 | ||
2839 | static int __init init_f2fs_fs(void) | |
2840 | { | |
2841 | int err; | |
2842 | ||
c0508650 JK |
2843 | f2fs_build_trace_ios(); |
2844 | ||
aff063e2 JK |
2845 | err = init_inodecache(); |
2846 | if (err) | |
2847 | goto fail; | |
2848 | err = create_node_manager_caches(); | |
2849 | if (err) | |
9890ff3f | 2850 | goto free_inodecache; |
7fd9e544 | 2851 | err = create_segment_manager_caches(); |
aff063e2 | 2852 | if (err) |
9890ff3f | 2853 | goto free_node_manager_caches; |
aff063e2 JK |
2854 | err = create_checkpoint_caches(); |
2855 | if (err) | |
06292073 | 2856 | goto free_segment_manager_caches; |
1dcc336b CY |
2857 | err = create_extent_cache(); |
2858 | if (err) | |
2859 | goto free_checkpoint_caches; | |
dc6b2055 | 2860 | err = f2fs_init_sysfs(); |
a398101a | 2861 | if (err) |
1dcc336b | 2862 | goto free_extent_cache; |
2658e50d | 2863 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 2864 | if (err) |
a398101a | 2865 | goto free_sysfs; |
2658e50d JK |
2866 | err = register_filesystem(&f2fs_fs_type); |
2867 | if (err) | |
2868 | goto free_shrinker; | |
787c7b8c CY |
2869 | err = f2fs_create_root_stats(); |
2870 | if (err) | |
2871 | goto free_filesystem; | |
9890ff3f ZH |
2872 | return 0; |
2873 | ||
787c7b8c CY |
2874 | free_filesystem: |
2875 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
2876 | free_shrinker: |
2877 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 2878 | free_sysfs: |
dc6b2055 | 2879 | f2fs_exit_sysfs(); |
1dcc336b CY |
2880 | free_extent_cache: |
2881 | destroy_extent_cache(); | |
9890ff3f ZH |
2882 | free_checkpoint_caches: |
2883 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
2884 | free_segment_manager_caches: |
2885 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
2886 | free_node_manager_caches: |
2887 | destroy_node_manager_caches(); | |
2888 | free_inodecache: | |
2889 | destroy_inodecache(); | |
aff063e2 JK |
2890 | fail: |
2891 | return err; | |
2892 | } | |
2893 | ||
2894 | static void __exit exit_f2fs_fs(void) | |
2895 | { | |
4589d25d | 2896 | f2fs_destroy_root_stats(); |
aff063e2 | 2897 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 2898 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 2899 | f2fs_exit_sysfs(); |
fdf6c8be | 2900 | destroy_extent_cache(); |
aff063e2 | 2901 | destroy_checkpoint_caches(); |
5dcd8a71 | 2902 | destroy_segment_manager_caches(); |
aff063e2 JK |
2903 | destroy_node_manager_caches(); |
2904 | destroy_inodecache(); | |
351f4fba | 2905 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
2906 | } |
2907 | ||
2908 | module_init(init_f2fs_fs) | |
2909 | module_exit(exit_f2fs_fs) | |
2910 | ||
2911 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
2912 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
2913 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 2914 |