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, |
7e65be49 | 110 | Opt_reserve_root, |
7c2e5963 JK |
111 | Opt_resgid, |
112 | Opt_resuid, | |
36abef4e | 113 | Opt_mode, |
ec91538d | 114 | Opt_io_size_bits, |
73faec4d | 115 | Opt_fault_injection, |
6d94c74a JK |
116 | Opt_lazytime, |
117 | Opt_nolazytime, | |
4b2414d0 CY |
118 | Opt_quota, |
119 | Opt_noquota, | |
0abd675e CY |
120 | Opt_usrquota, |
121 | Opt_grpquota, | |
5c57132e | 122 | Opt_prjquota, |
4b2414d0 CY |
123 | Opt_usrjquota, |
124 | Opt_grpjquota, | |
125 | Opt_prjjquota, | |
126 | Opt_offusrjquota, | |
127 | Opt_offgrpjquota, | |
128 | Opt_offprjjquota, | |
129 | Opt_jqfmt_vfsold, | |
130 | Opt_jqfmt_vfsv0, | |
131 | Opt_jqfmt_vfsv1, | |
0cdd3195 | 132 | Opt_whint, |
aff063e2 JK |
133 | Opt_err, |
134 | }; | |
135 | ||
136 | static match_table_t f2fs_tokens = { | |
696c018c | 137 | {Opt_gc_background, "background_gc=%s"}, |
aff063e2 | 138 | {Opt_disable_roll_forward, "disable_roll_forward"}, |
2d834bf9 | 139 | {Opt_norecovery, "norecovery"}, |
aff063e2 | 140 | {Opt_discard, "discard"}, |
64058be9 | 141 | {Opt_nodiscard, "nodiscard"}, |
aff063e2 | 142 | {Opt_noheap, "no_heap"}, |
7a20b8a6 | 143 | {Opt_heap, "heap"}, |
4058c511 | 144 | {Opt_user_xattr, "user_xattr"}, |
aff063e2 | 145 | {Opt_nouser_xattr, "nouser_xattr"}, |
4058c511 | 146 | {Opt_acl, "acl"}, |
aff063e2 JK |
147 | {Opt_noacl, "noacl"}, |
148 | {Opt_active_logs, "active_logs=%u"}, | |
149 | {Opt_disable_ext_identify, "disable_ext_identify"}, | |
444c580f | 150 | {Opt_inline_xattr, "inline_xattr"}, |
23cf7212 | 151 | {Opt_noinline_xattr, "noinline_xattr"}, |
6afc662e | 152 | {Opt_inline_xattr_size, "inline_xattr_size=%u"}, |
8274de77 | 153 | {Opt_inline_data, "inline_data"}, |
5efd3c6f | 154 | {Opt_inline_dentry, "inline_dentry"}, |
97c1794a | 155 | {Opt_noinline_dentry, "noinline_dentry"}, |
6b4afdd7 | 156 | {Opt_flush_merge, "flush_merge"}, |
69e9e427 | 157 | {Opt_noflush_merge, "noflush_merge"}, |
0f7b2abd | 158 | {Opt_nobarrier, "nobarrier"}, |
d5053a34 | 159 | {Opt_fastboot, "fastboot"}, |
89672159 | 160 | {Opt_extent_cache, "extent_cache"}, |
7daaea25 | 161 | {Opt_noextent_cache, "noextent_cache"}, |
75342797 | 162 | {Opt_noinline_data, "noinline_data"}, |
343f40f0 | 163 | {Opt_data_flush, "data_flush"}, |
7e65be49 | 164 | {Opt_reserve_root, "reserve_root=%u"}, |
7c2e5963 JK |
165 | {Opt_resgid, "resgid=%u"}, |
166 | {Opt_resuid, "resuid=%u"}, | |
36abef4e | 167 | {Opt_mode, "mode=%s"}, |
ec91538d | 168 | {Opt_io_size_bits, "io_bits=%u"}, |
73faec4d | 169 | {Opt_fault_injection, "fault_injection=%u"}, |
6d94c74a JK |
170 | {Opt_lazytime, "lazytime"}, |
171 | {Opt_nolazytime, "nolazytime"}, | |
4b2414d0 CY |
172 | {Opt_quota, "quota"}, |
173 | {Opt_noquota, "noquota"}, | |
0abd675e CY |
174 | {Opt_usrquota, "usrquota"}, |
175 | {Opt_grpquota, "grpquota"}, | |
5c57132e | 176 | {Opt_prjquota, "prjquota"}, |
4b2414d0 CY |
177 | {Opt_usrjquota, "usrjquota=%s"}, |
178 | {Opt_grpjquota, "grpjquota=%s"}, | |
179 | {Opt_prjjquota, "prjjquota=%s"}, | |
180 | {Opt_offusrjquota, "usrjquota="}, | |
181 | {Opt_offgrpjquota, "grpjquota="}, | |
182 | {Opt_offprjjquota, "prjjquota="}, | |
183 | {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, | |
184 | {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, | |
185 | {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, | |
0cdd3195 | 186 | {Opt_whint, "whint_mode=%s"}, |
aff063e2 JK |
187 | {Opt_err, NULL}, |
188 | }; | |
189 | ||
a07ef784 NJ |
190 | void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) |
191 | { | |
192 | struct va_format vaf; | |
193 | va_list args; | |
194 | ||
195 | va_start(args, fmt); | |
196 | vaf.fmt = fmt; | |
197 | vaf.va = &args; | |
a36c106d | 198 | printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); |
a07ef784 NJ |
199 | va_end(args); |
200 | } | |
201 | ||
7e65be49 JK |
202 | static inline void limit_reserve_root(struct f2fs_sb_info *sbi) |
203 | { | |
204 | block_t limit = (sbi->user_block_count << 1) / 1000; | |
205 | ||
206 | /* limit is 0.2% */ | |
207 | if (test_opt(sbi, RESERVE_ROOT) && sbi->root_reserved_blocks > limit) { | |
208 | sbi->root_reserved_blocks = limit; | |
209 | f2fs_msg(sbi->sb, KERN_INFO, | |
210 | "Reduce reserved blocks for root = %u", | |
211 | sbi->root_reserved_blocks); | |
212 | } | |
7c2e5963 JK |
213 | if (!test_opt(sbi, RESERVE_ROOT) && |
214 | (!uid_eq(sbi->s_resuid, | |
215 | make_kuid(&init_user_ns, F2FS_DEF_RESUID)) || | |
216 | !gid_eq(sbi->s_resgid, | |
217 | make_kgid(&init_user_ns, F2FS_DEF_RESGID)))) | |
218 | f2fs_msg(sbi->sb, KERN_INFO, | |
219 | "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root", | |
220 | from_kuid_munged(&init_user_ns, sbi->s_resuid), | |
221 | from_kgid_munged(&init_user_ns, sbi->s_resgid)); | |
7e65be49 JK |
222 | } |
223 | ||
aff063e2 JK |
224 | static void init_once(void *foo) |
225 | { | |
226 | struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; | |
227 | ||
aff063e2 JK |
228 | inode_init_once(&fi->vfs_inode); |
229 | } | |
230 | ||
4b2414d0 CY |
231 | #ifdef CONFIG_QUOTA |
232 | static const char * const quotatypes[] = INITQFNAMES; | |
233 | #define QTYPE2NAME(t) (quotatypes[t]) | |
234 | static int f2fs_set_qf_name(struct super_block *sb, int qtype, | |
235 | substring_t *args) | |
236 | { | |
237 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
238 | char *qname; | |
239 | int ret = -EINVAL; | |
240 | ||
241 | if (sb_any_quota_loaded(sb) && !sbi->s_qf_names[qtype]) { | |
242 | f2fs_msg(sb, KERN_ERR, | |
243 | "Cannot change journaled " | |
244 | "quota options when quota turned on"); | |
245 | return -EINVAL; | |
246 | } | |
ea676733 JK |
247 | if (f2fs_sb_has_quota_ino(sb)) { |
248 | f2fs_msg(sb, KERN_INFO, | |
249 | "QUOTA feature is enabled, so ignore qf_name"); | |
250 | return 0; | |
251 | } | |
252 | ||
4b2414d0 CY |
253 | qname = match_strdup(args); |
254 | if (!qname) { | |
255 | f2fs_msg(sb, KERN_ERR, | |
256 | "Not enough memory for storing quotafile name"); | |
257 | return -EINVAL; | |
258 | } | |
259 | if (sbi->s_qf_names[qtype]) { | |
260 | if (strcmp(sbi->s_qf_names[qtype], qname) == 0) | |
261 | ret = 0; | |
262 | else | |
263 | f2fs_msg(sb, KERN_ERR, | |
264 | "%s quota file already specified", | |
265 | QTYPE2NAME(qtype)); | |
266 | goto errout; | |
267 | } | |
268 | if (strchr(qname, '/')) { | |
269 | f2fs_msg(sb, KERN_ERR, | |
270 | "quotafile must be on filesystem root"); | |
271 | goto errout; | |
272 | } | |
273 | sbi->s_qf_names[qtype] = qname; | |
274 | set_opt(sbi, QUOTA); | |
275 | return 0; | |
276 | errout: | |
277 | kfree(qname); | |
278 | return ret; | |
279 | } | |
280 | ||
281 | static int f2fs_clear_qf_name(struct super_block *sb, int qtype) | |
282 | { | |
283 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
284 | ||
285 | if (sb_any_quota_loaded(sb) && sbi->s_qf_names[qtype]) { | |
286 | f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" | |
287 | " when quota turned on"); | |
288 | return -EINVAL; | |
289 | } | |
290 | kfree(sbi->s_qf_names[qtype]); | |
291 | sbi->s_qf_names[qtype] = NULL; | |
292 | return 0; | |
293 | } | |
294 | ||
295 | static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) | |
296 | { | |
297 | /* | |
298 | * We do the test below only for project quotas. 'usrquota' and | |
299 | * 'grpquota' mount options are allowed even without quota feature | |
300 | * to support legacy quotas in quota files. | |
301 | */ | |
302 | if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) { | |
303 | f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " | |
304 | "Cannot enable project quota enforcement."); | |
305 | return -1; | |
306 | } | |
307 | if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA] || | |
308 | sbi->s_qf_names[PRJQUOTA]) { | |
309 | if (test_opt(sbi, USRQUOTA) && sbi->s_qf_names[USRQUOTA]) | |
310 | clear_opt(sbi, USRQUOTA); | |
311 | ||
312 | if (test_opt(sbi, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA]) | |
313 | clear_opt(sbi, GRPQUOTA); | |
314 | ||
315 | if (test_opt(sbi, PRJQUOTA) && sbi->s_qf_names[PRJQUOTA]) | |
316 | clear_opt(sbi, PRJQUOTA); | |
317 | ||
318 | if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || | |
319 | test_opt(sbi, PRJQUOTA)) { | |
320 | f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " | |
321 | "format mixing"); | |
322 | return -1; | |
323 | } | |
324 | ||
325 | if (!sbi->s_jquota_fmt) { | |
326 | f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " | |
327 | "not specified"); | |
328 | return -1; | |
329 | } | |
330 | } | |
ea676733 JK |
331 | |
332 | if (f2fs_sb_has_quota_ino(sbi->sb) && sbi->s_jquota_fmt) { | |
333 | f2fs_msg(sbi->sb, KERN_INFO, | |
334 | "QUOTA feature is enabled, so ignore jquota_fmt"); | |
335 | sbi->s_jquota_fmt = 0; | |
336 | } | |
337 | if (f2fs_sb_has_quota_ino(sbi->sb) && sb_rdonly(sbi->sb)) { | |
338 | f2fs_msg(sbi->sb, KERN_INFO, | |
339 | "Filesystem with quota feature cannot be mounted RDWR " | |
340 | "without CONFIG_QUOTA"); | |
341 | return -1; | |
342 | } | |
4b2414d0 CY |
343 | return 0; |
344 | } | |
345 | #endif | |
346 | ||
696c018c NJ |
347 | static int parse_options(struct super_block *sb, char *options) |
348 | { | |
349 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
09d54cdd | 350 | struct request_queue *q; |
696c018c NJ |
351 | substring_t args[MAX_OPT_ARGS]; |
352 | char *p, *name; | |
353 | int arg = 0; | |
7c2e5963 JK |
354 | kuid_t uid; |
355 | kgid_t gid; | |
4b2414d0 CY |
356 | #ifdef CONFIG_QUOTA |
357 | int ret; | |
358 | #endif | |
696c018c NJ |
359 | |
360 | if (!options) | |
361 | return 0; | |
362 | ||
363 | while ((p = strsep(&options, ",")) != NULL) { | |
364 | int token; | |
365 | if (!*p) | |
366 | continue; | |
367 | /* | |
368 | * Initialize args struct so we know whether arg was | |
369 | * found; some options take optional arguments. | |
370 | */ | |
371 | args[0].to = args[0].from = NULL; | |
372 | token = match_token(p, f2fs_tokens, args); | |
373 | ||
374 | switch (token) { | |
375 | case Opt_gc_background: | |
376 | name = match_strdup(&args[0]); | |
377 | ||
378 | if (!name) | |
379 | return -ENOMEM; | |
6aefd93b | 380 | if (strlen(name) == 2 && !strncmp(name, "on", 2)) { |
696c018c | 381 | set_opt(sbi, BG_GC); |
6aefd93b JK |
382 | clear_opt(sbi, FORCE_FG_GC); |
383 | } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { | |
696c018c | 384 | clear_opt(sbi, BG_GC); |
6aefd93b JK |
385 | clear_opt(sbi, FORCE_FG_GC); |
386 | } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { | |
387 | set_opt(sbi, BG_GC); | |
388 | set_opt(sbi, FORCE_FG_GC); | |
389 | } else { | |
696c018c NJ |
390 | kfree(name); |
391 | return -EINVAL; | |
392 | } | |
393 | kfree(name); | |
394 | break; | |
395 | case Opt_disable_roll_forward: | |
396 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
397 | break; | |
2d834bf9 JK |
398 | case Opt_norecovery: |
399 | /* this option mounts f2fs with ro */ | |
400 | set_opt(sbi, DISABLE_ROLL_FORWARD); | |
401 | if (!f2fs_readonly(sb)) | |
402 | return -EINVAL; | |
403 | break; | |
696c018c | 404 | case Opt_discard: |
09d54cdd CY |
405 | q = bdev_get_queue(sb->s_bdev); |
406 | if (blk_queue_discard(q)) { | |
407 | set_opt(sbi, DISCARD); | |
0ab02998 | 408 | } else if (!f2fs_sb_mounted_blkzoned(sb)) { |
09d54cdd CY |
409 | f2fs_msg(sb, KERN_WARNING, |
410 | "mounting with \"discard\" option, but " | |
411 | "the device does not support discard"); | |
412 | } | |
696c018c | 413 | break; |
64058be9 | 414 | case Opt_nodiscard: |
96ba2dec DLM |
415 | if (f2fs_sb_mounted_blkzoned(sb)) { |
416 | f2fs_msg(sb, KERN_WARNING, | |
417 | "discard is required for zoned block devices"); | |
418 | return -EINVAL; | |
419 | } | |
64058be9 | 420 | clear_opt(sbi, DISCARD); |
487df616 | 421 | break; |
696c018c NJ |
422 | case Opt_noheap: |
423 | set_opt(sbi, NOHEAP); | |
424 | break; | |
7a20b8a6 JK |
425 | case Opt_heap: |
426 | clear_opt(sbi, NOHEAP); | |
427 | break; | |
696c018c | 428 | #ifdef CONFIG_F2FS_FS_XATTR |
4058c511 KA |
429 | case Opt_user_xattr: |
430 | set_opt(sbi, XATTR_USER); | |
431 | break; | |
696c018c NJ |
432 | case Opt_nouser_xattr: |
433 | clear_opt(sbi, XATTR_USER); | |
434 | break; | |
444c580f JK |
435 | case Opt_inline_xattr: |
436 | set_opt(sbi, INLINE_XATTR); | |
437 | break; | |
23cf7212 CY |
438 | case Opt_noinline_xattr: |
439 | clear_opt(sbi, INLINE_XATTR); | |
440 | break; | |
6afc662e CY |
441 | case Opt_inline_xattr_size: |
442 | if (args->from && match_int(args, &arg)) | |
443 | return -EINVAL; | |
444 | set_opt(sbi, INLINE_XATTR_SIZE); | |
445 | sbi->inline_xattr_size = arg; | |
446 | break; | |
696c018c | 447 | #else |
4058c511 KA |
448 | case Opt_user_xattr: |
449 | f2fs_msg(sb, KERN_INFO, | |
450 | "user_xattr options not supported"); | |
451 | break; | |
696c018c NJ |
452 | case Opt_nouser_xattr: |
453 | f2fs_msg(sb, KERN_INFO, | |
454 | "nouser_xattr options not supported"); | |
455 | break; | |
444c580f JK |
456 | case Opt_inline_xattr: |
457 | f2fs_msg(sb, KERN_INFO, | |
458 | "inline_xattr options not supported"); | |
459 | break; | |
23cf7212 CY |
460 | case Opt_noinline_xattr: |
461 | f2fs_msg(sb, KERN_INFO, | |
462 | "noinline_xattr options not supported"); | |
463 | break; | |
696c018c NJ |
464 | #endif |
465 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
4058c511 KA |
466 | case Opt_acl: |
467 | set_opt(sbi, POSIX_ACL); | |
468 | break; | |
696c018c NJ |
469 | case Opt_noacl: |
470 | clear_opt(sbi, POSIX_ACL); | |
471 | break; | |
472 | #else | |
4058c511 KA |
473 | case Opt_acl: |
474 | f2fs_msg(sb, KERN_INFO, "acl options not supported"); | |
475 | break; | |
696c018c NJ |
476 | case Opt_noacl: |
477 | f2fs_msg(sb, KERN_INFO, "noacl options not supported"); | |
478 | break; | |
479 | #endif | |
480 | case Opt_active_logs: | |
481 | if (args->from && match_int(args, &arg)) | |
482 | return -EINVAL; | |
483 | if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) | |
484 | return -EINVAL; | |
485 | sbi->active_logs = arg; | |
486 | break; | |
487 | case Opt_disable_ext_identify: | |
488 | set_opt(sbi, DISABLE_EXT_IDENTIFY); | |
489 | break; | |
8274de77 HL |
490 | case Opt_inline_data: |
491 | set_opt(sbi, INLINE_DATA); | |
492 | break; | |
5efd3c6f CY |
493 | case Opt_inline_dentry: |
494 | set_opt(sbi, INLINE_DENTRY); | |
495 | break; | |
97c1794a CY |
496 | case Opt_noinline_dentry: |
497 | clear_opt(sbi, INLINE_DENTRY); | |
498 | break; | |
6b4afdd7 JK |
499 | case Opt_flush_merge: |
500 | set_opt(sbi, FLUSH_MERGE); | |
501 | break; | |
69e9e427 JK |
502 | case Opt_noflush_merge: |
503 | clear_opt(sbi, FLUSH_MERGE); | |
504 | break; | |
0f7b2abd JK |
505 | case Opt_nobarrier: |
506 | set_opt(sbi, NOBARRIER); | |
507 | break; | |
d5053a34 JK |
508 | case Opt_fastboot: |
509 | set_opt(sbi, FASTBOOT); | |
510 | break; | |
89672159 CY |
511 | case Opt_extent_cache: |
512 | set_opt(sbi, EXTENT_CACHE); | |
513 | break; | |
7daaea25 JK |
514 | case Opt_noextent_cache: |
515 | clear_opt(sbi, EXTENT_CACHE); | |
516 | break; | |
75342797 WL |
517 | case Opt_noinline_data: |
518 | clear_opt(sbi, INLINE_DATA); | |
519 | break; | |
343f40f0 CY |
520 | case Opt_data_flush: |
521 | set_opt(sbi, DATA_FLUSH); | |
522 | break; | |
7e65be49 JK |
523 | case Opt_reserve_root: |
524 | if (args->from && match_int(args, &arg)) | |
525 | return -EINVAL; | |
526 | if (test_opt(sbi, RESERVE_ROOT)) { | |
527 | f2fs_msg(sb, KERN_INFO, | |
528 | "Preserve previous reserve_root=%u", | |
529 | sbi->root_reserved_blocks); | |
530 | } else { | |
531 | sbi->root_reserved_blocks = arg; | |
532 | set_opt(sbi, RESERVE_ROOT); | |
533 | } | |
534 | break; | |
7c2e5963 JK |
535 | case Opt_resuid: |
536 | if (args->from && match_int(args, &arg)) | |
537 | return -EINVAL; | |
538 | uid = make_kuid(current_user_ns(), arg); | |
539 | if (!uid_valid(uid)) { | |
540 | f2fs_msg(sb, KERN_ERR, | |
541 | "Invalid uid value %d", arg); | |
542 | return -EINVAL; | |
543 | } | |
544 | sbi->s_resuid = uid; | |
545 | break; | |
546 | case Opt_resgid: | |
547 | if (args->from && match_int(args, &arg)) | |
548 | return -EINVAL; | |
549 | gid = make_kgid(current_user_ns(), arg); | |
550 | if (!gid_valid(gid)) { | |
551 | f2fs_msg(sb, KERN_ERR, | |
552 | "Invalid gid value %d", arg); | |
553 | return -EINVAL; | |
554 | } | |
555 | sbi->s_resgid = gid; | |
556 | break; | |
36abef4e JK |
557 | case Opt_mode: |
558 | name = match_strdup(&args[0]); | |
559 | ||
560 | if (!name) | |
561 | return -ENOMEM; | |
562 | if (strlen(name) == 8 && | |
563 | !strncmp(name, "adaptive", 8)) { | |
3adc57e9 DLM |
564 | if (f2fs_sb_mounted_blkzoned(sb)) { |
565 | f2fs_msg(sb, KERN_WARNING, | |
566 | "adaptive mode is not allowed with " | |
567 | "zoned block device feature"); | |
568 | kfree(name); | |
569 | return -EINVAL; | |
570 | } | |
52763a4b | 571 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); |
36abef4e JK |
572 | } else if (strlen(name) == 3 && |
573 | !strncmp(name, "lfs", 3)) { | |
52763a4b | 574 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
36abef4e JK |
575 | } else { |
576 | kfree(name); | |
577 | return -EINVAL; | |
578 | } | |
579 | kfree(name); | |
580 | break; | |
ec91538d JK |
581 | case Opt_io_size_bits: |
582 | if (args->from && match_int(args, &arg)) | |
583 | return -EINVAL; | |
584 | if (arg > __ilog2_u32(BIO_MAX_PAGES)) { | |
585 | f2fs_msg(sb, KERN_WARNING, | |
586 | "Not support %d, larger than %d", | |
587 | 1 << arg, BIO_MAX_PAGES); | |
588 | return -EINVAL; | |
589 | } | |
590 | sbi->write_io_size_bits = arg; | |
591 | break; | |
73faec4d JK |
592 | case Opt_fault_injection: |
593 | if (args->from && match_int(args, &arg)) | |
594 | return -EINVAL; | |
595 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1ecc0c5c | 596 | f2fs_build_fault_attr(sbi, arg); |
0cc0dec2 | 597 | set_opt(sbi, FAULT_INJECTION); |
73faec4d JK |
598 | #else |
599 | f2fs_msg(sb, KERN_INFO, | |
600 | "FAULT_INJECTION was not selected"); | |
601 | #endif | |
602 | break; | |
6d94c74a | 603 | case Opt_lazytime: |
1751e8a6 | 604 | sb->s_flags |= SB_LAZYTIME; |
6d94c74a JK |
605 | break; |
606 | case Opt_nolazytime: | |
1751e8a6 | 607 | sb->s_flags &= ~SB_LAZYTIME; |
6d94c74a | 608 | break; |
0abd675e | 609 | #ifdef CONFIG_QUOTA |
4b2414d0 | 610 | case Opt_quota: |
0abd675e CY |
611 | case Opt_usrquota: |
612 | set_opt(sbi, USRQUOTA); | |
613 | break; | |
614 | case Opt_grpquota: | |
615 | set_opt(sbi, GRPQUOTA); | |
616 | break; | |
5c57132e CY |
617 | case Opt_prjquota: |
618 | set_opt(sbi, PRJQUOTA); | |
619 | break; | |
4b2414d0 CY |
620 | case Opt_usrjquota: |
621 | ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); | |
622 | if (ret) | |
623 | return ret; | |
624 | break; | |
625 | case Opt_grpjquota: | |
626 | ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); | |
627 | if (ret) | |
628 | return ret; | |
629 | break; | |
630 | case Opt_prjjquota: | |
631 | ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); | |
632 | if (ret) | |
633 | return ret; | |
634 | break; | |
635 | case Opt_offusrjquota: | |
636 | ret = f2fs_clear_qf_name(sb, USRQUOTA); | |
637 | if (ret) | |
638 | return ret; | |
639 | break; | |
640 | case Opt_offgrpjquota: | |
641 | ret = f2fs_clear_qf_name(sb, GRPQUOTA); | |
642 | if (ret) | |
643 | return ret; | |
644 | break; | |
645 | case Opt_offprjjquota: | |
646 | ret = f2fs_clear_qf_name(sb, PRJQUOTA); | |
647 | if (ret) | |
648 | return ret; | |
649 | break; | |
650 | case Opt_jqfmt_vfsold: | |
651 | sbi->s_jquota_fmt = QFMT_VFS_OLD; | |
652 | break; | |
653 | case Opt_jqfmt_vfsv0: | |
654 | sbi->s_jquota_fmt = QFMT_VFS_V0; | |
655 | break; | |
656 | case Opt_jqfmt_vfsv1: | |
657 | sbi->s_jquota_fmt = QFMT_VFS_V1; | |
658 | break; | |
659 | case Opt_noquota: | |
660 | clear_opt(sbi, QUOTA); | |
661 | clear_opt(sbi, USRQUOTA); | |
662 | clear_opt(sbi, GRPQUOTA); | |
663 | clear_opt(sbi, PRJQUOTA); | |
664 | break; | |
0abd675e | 665 | #else |
4b2414d0 | 666 | case Opt_quota: |
0abd675e CY |
667 | case Opt_usrquota: |
668 | case Opt_grpquota: | |
5c57132e | 669 | case Opt_prjquota: |
4b2414d0 CY |
670 | case Opt_usrjquota: |
671 | case Opt_grpjquota: | |
672 | case Opt_prjjquota: | |
673 | case Opt_offusrjquota: | |
674 | case Opt_offgrpjquota: | |
675 | case Opt_offprjjquota: | |
676 | case Opt_jqfmt_vfsold: | |
677 | case Opt_jqfmt_vfsv0: | |
678 | case Opt_jqfmt_vfsv1: | |
679 | case Opt_noquota: | |
0abd675e CY |
680 | f2fs_msg(sb, KERN_INFO, |
681 | "quota operations not supported"); | |
682 | break; | |
683 | #endif | |
0cdd3195 HL |
684 | case Opt_whint: |
685 | name = match_strdup(&args[0]); | |
686 | if (!name) | |
687 | return -ENOMEM; | |
688 | if (strlen(name) == 10 && | |
689 | !strncmp(name, "user-based", 10)) { | |
690 | sbi->whint_mode = WHINT_MODE_USER; | |
691 | } else if (strlen(name) == 3 && | |
692 | !strncmp(name, "off", 3)) { | |
693 | sbi->whint_mode = WHINT_MODE_OFF; | |
f2e703f9 HL |
694 | } else if (strlen(name) == 8 && |
695 | !strncmp(name, "fs-based", 8)) { | |
696 | sbi->whint_mode = WHINT_MODE_FS; | |
0cdd3195 HL |
697 | } else { |
698 | kfree(name); | |
699 | return -EINVAL; | |
700 | } | |
701 | kfree(name); | |
702 | break; | |
696c018c NJ |
703 | default: |
704 | f2fs_msg(sb, KERN_ERR, | |
705 | "Unrecognized mount option \"%s\" or missing value", | |
706 | p); | |
707 | return -EINVAL; | |
708 | } | |
709 | } | |
4b2414d0 CY |
710 | #ifdef CONFIG_QUOTA |
711 | if (f2fs_check_quota_options(sbi)) | |
712 | return -EINVAL; | |
713 | #endif | |
ec91538d JK |
714 | |
715 | if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { | |
716 | f2fs_msg(sb, KERN_ERR, | |
717 | "Should set mode=lfs with %uKB-sized IO", | |
718 | F2FS_IO_SIZE_KB(sbi)); | |
719 | return -EINVAL; | |
720 | } | |
6afc662e CY |
721 | |
722 | if (test_opt(sbi, INLINE_XATTR_SIZE)) { | |
4d817ae0 CY |
723 | if (!f2fs_sb_has_extra_attr(sb) || |
724 | !f2fs_sb_has_flexible_inline_xattr(sb)) { | |
725 | f2fs_msg(sb, KERN_ERR, | |
726 | "extra_attr or flexible_inline_xattr " | |
727 | "feature is off"); | |
728 | return -EINVAL; | |
729 | } | |
6afc662e CY |
730 | if (!test_opt(sbi, INLINE_XATTR)) { |
731 | f2fs_msg(sb, KERN_ERR, | |
732 | "inline_xattr_size option should be " | |
733 | "set with inline_xattr option"); | |
734 | return -EINVAL; | |
735 | } | |
736 | if (!sbi->inline_xattr_size || | |
737 | sbi->inline_xattr_size >= DEF_ADDRS_PER_INODE - | |
738 | F2FS_TOTAL_EXTRA_ATTR_SIZE - | |
739 | DEF_INLINE_RESERVED_SIZE - | |
740 | DEF_MIN_INLINE_SIZE) { | |
741 | f2fs_msg(sb, KERN_ERR, | |
742 | "inline xattr size is out of range"); | |
743 | return -EINVAL; | |
744 | } | |
745 | } | |
0cdd3195 HL |
746 | |
747 | /* Not pass down write hints if the number of active logs is lesser | |
748 | * than NR_CURSEG_TYPE. | |
749 | */ | |
750 | if (sbi->active_logs != NR_CURSEG_TYPE) | |
751 | sbi->whint_mode = WHINT_MODE_OFF; | |
696c018c NJ |
752 | return 0; |
753 | } | |
754 | ||
aff063e2 JK |
755 | static struct inode *f2fs_alloc_inode(struct super_block *sb) |
756 | { | |
757 | struct f2fs_inode_info *fi; | |
758 | ||
a0acdfe0 | 759 | fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
aff063e2 JK |
760 | if (!fi) |
761 | return NULL; | |
762 | ||
763 | init_once((void *) fi); | |
764 | ||
434720fa | 765 | /* Initialize f2fs-specific inode info */ |
204706c7 | 766 | atomic_set(&fi->dirty_pages, 0); |
aff063e2 JK |
767 | fi->i_current_depth = 1; |
768 | fi->i_advise = 0; | |
d928bfbf | 769 | init_rwsem(&fi->i_sem); |
2710fd7e | 770 | INIT_LIST_HEAD(&fi->dirty_list); |
0f18b462 | 771 | INIT_LIST_HEAD(&fi->gdirty_list); |
57864ae5 | 772 | INIT_LIST_HEAD(&fi->inmem_ilist); |
88b88a66 JK |
773 | INIT_LIST_HEAD(&fi->inmem_pages); |
774 | mutex_init(&fi->inmem_lock); | |
82e0a5aa CY |
775 | init_rwsem(&fi->dio_rwsem[READ]); |
776 | init_rwsem(&fi->dio_rwsem[WRITE]); | |
5a3a2d83 | 777 | init_rwsem(&fi->i_mmap_sem); |
27161f13 | 778 | init_rwsem(&fi->i_xattr_sem); |
aff063e2 | 779 | |
0abd675e CY |
780 | #ifdef CONFIG_QUOTA |
781 | memset(&fi->i_dquot, 0, sizeof(fi->i_dquot)); | |
782 | fi->i_reserved_quota = 0; | |
783 | #endif | |
ab9fa662 JK |
784 | /* Will be used by directory only */ |
785 | fi->i_dir_level = F2FS_SB(sb)->dir_level; | |
f2470371 | 786 | |
aff063e2 JK |
787 | return &fi->vfs_inode; |
788 | } | |
789 | ||
531ad7d5 JK |
790 | static int f2fs_drop_inode(struct inode *inode) |
791 | { | |
b8d96a30 | 792 | int ret; |
531ad7d5 JK |
793 | /* |
794 | * This is to avoid a deadlock condition like below. | |
795 | * writeback_single_inode(inode) | |
796 | * - f2fs_write_data_page | |
797 | * - f2fs_gc -> iput -> evict | |
798 | * - inode_wait_for_writeback(inode) | |
799 | */ | |
0f18b462 | 800 | if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
06e1bc05 | 801 | if (!inode->i_nlink && !is_bad_inode(inode)) { |
3e72f721 JK |
802 | /* to avoid evict_inode call simultaneously */ |
803 | atomic_inc(&inode->i_count); | |
06e1bc05 JK |
804 | spin_unlock(&inode->i_lock); |
805 | ||
806 | /* some remained atomic pages should discarded */ | |
807 | if (f2fs_is_atomic_file(inode)) | |
29b96b54 | 808 | drop_inmem_pages(inode); |
06e1bc05 | 809 | |
3e72f721 JK |
810 | /* should remain fi->extent_tree for writepage */ |
811 | f2fs_destroy_extent_node(inode); | |
812 | ||
06e1bc05 | 813 | sb_start_intwrite(inode->i_sb); |
fc9581c8 | 814 | f2fs_i_size_write(inode, 0); |
06e1bc05 JK |
815 | |
816 | if (F2FS_HAS_BLOCKS(inode)) | |
9a449e9c | 817 | f2fs_truncate(inode); |
06e1bc05 JK |
818 | |
819 | sb_end_intwrite(inode->i_sb); | |
820 | ||
06e1bc05 | 821 | spin_lock(&inode->i_lock); |
3e72f721 | 822 | atomic_dec(&inode->i_count); |
06e1bc05 | 823 | } |
b8d96a30 | 824 | trace_f2fs_drop_inode(inode, 0); |
531ad7d5 | 825 | return 0; |
06e1bc05 | 826 | } |
b8d96a30 HP |
827 | ret = generic_drop_inode(inode); |
828 | trace_f2fs_drop_inode(inode, ret); | |
829 | return ret; | |
531ad7d5 JK |
830 | } |
831 | ||
7c45729a | 832 | int f2fs_inode_dirtied(struct inode *inode, bool sync) |
b3783873 | 833 | { |
0f18b462 | 834 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
7c45729a | 835 | int ret = 0; |
0f18b462 | 836 | |
0f18b462 JK |
837 | spin_lock(&sbi->inode_lock[DIRTY_META]); |
838 | if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
7c45729a JK |
839 | ret = 1; |
840 | } else { | |
841 | set_inode_flag(inode, FI_DIRTY_INODE); | |
842 | stat_inc_dirty_inode(sbi, DIRTY_META); | |
0f18b462 | 843 | } |
7c45729a JK |
844 | if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
845 | list_add_tail(&F2FS_I(inode)->gdirty_list, | |
0f18b462 | 846 | &sbi->inode_list[DIRTY_META]); |
7c45729a JK |
847 | inc_page_count(sbi, F2FS_DIRTY_IMETA); |
848 | } | |
338bbfa0 | 849 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
7c45729a | 850 | return ret; |
0f18b462 JK |
851 | } |
852 | ||
853 | void f2fs_inode_synced(struct inode *inode) | |
854 | { | |
855 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
856 | ||
857 | spin_lock(&sbi->inode_lock[DIRTY_META]); | |
858 | if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { | |
859 | spin_unlock(&sbi->inode_lock[DIRTY_META]); | |
860 | return; | |
861 | } | |
7c45729a JK |
862 | if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
863 | list_del_init(&F2FS_I(inode)->gdirty_list); | |
864 | dec_page_count(sbi, F2FS_DIRTY_IMETA); | |
865 | } | |
0f18b462 | 866 | clear_inode_flag(inode, FI_DIRTY_INODE); |
26de9b11 | 867 | clear_inode_flag(inode, FI_AUTO_RECOVER); |
0f18b462 | 868 | stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
338bbfa0 | 869 | spin_unlock(&sbi->inode_lock[DIRTY_META]); |
b3783873 JK |
870 | } |
871 | ||
b56ab837 JK |
872 | /* |
873 | * f2fs_dirty_inode() is called from __mark_inode_dirty() | |
874 | * | |
875 | * We should call set_dirty_inode to write the dirty inode through write_inode. | |
876 | */ | |
877 | static void f2fs_dirty_inode(struct inode *inode, int flags) | |
878 | { | |
879 | struct f2fs_sb_info *sbi = F2FS_I_SB(inode); | |
880 | ||
881 | if (inode->i_ino == F2FS_NODE_INO(sbi) || | |
882 | inode->i_ino == F2FS_META_INO(sbi)) | |
883 | return; | |
884 | ||
885 | if (flags == I_DIRTY_TIME) | |
886 | return; | |
887 | ||
888 | if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) | |
889 | clear_inode_flag(inode, FI_AUTO_RECOVER); | |
890 | ||
7c45729a | 891 | f2fs_inode_dirtied(inode, false); |
b56ab837 JK |
892 | } |
893 | ||
aff063e2 JK |
894 | static void f2fs_i_callback(struct rcu_head *head) |
895 | { | |
896 | struct inode *inode = container_of(head, struct inode, i_rcu); | |
897 | kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); | |
898 | } | |
899 | ||
25ca923b | 900 | static void f2fs_destroy_inode(struct inode *inode) |
aff063e2 JK |
901 | { |
902 | call_rcu(&inode->i_rcu, f2fs_i_callback); | |
903 | } | |
904 | ||
523be8a6 JK |
905 | static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
906 | { | |
41382ec4 | 907 | percpu_counter_destroy(&sbi->alloc_valid_block_count); |
513c5f37 | 908 | percpu_counter_destroy(&sbi->total_valid_inode_count); |
523be8a6 JK |
909 | } |
910 | ||
3c62be17 JK |
911 | static void destroy_device_list(struct f2fs_sb_info *sbi) |
912 | { | |
913 | int i; | |
914 | ||
915 | for (i = 0; i < sbi->s_ndevs; i++) { | |
916 | blkdev_put(FDEV(i).bdev, FMODE_EXCL); | |
917 | #ifdef CONFIG_BLK_DEV_ZONED | |
918 | kfree(FDEV(i).blkz_type); | |
919 | #endif | |
920 | } | |
921 | kfree(sbi->devs); | |
922 | } | |
923 | ||
aff063e2 JK |
924 | static void f2fs_put_super(struct super_block *sb) |
925 | { | |
926 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
a398101a | 927 | int i; |
cf5c759f | 928 | bool dropped; |
aff063e2 | 929 | |
0abd675e | 930 | f2fs_quota_off_umount(sb); |
aff063e2 | 931 | |
2658e50d JK |
932 | /* prevent remaining shrinker jobs */ |
933 | mutex_lock(&sbi->umount_mutex); | |
934 | ||
85dc2f2c JK |
935 | /* |
936 | * We don't need to do checkpoint when superblock is clean. | |
937 | * But, the previous checkpoint was not done by umount, it needs to do | |
938 | * clean checkpoint again. | |
939 | */ | |
caf0047e | 940 | if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
aaec2b1d | 941 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
75ab4cb8 JK |
942 | struct cp_control cpc = { |
943 | .reason = CP_UMOUNT, | |
944 | }; | |
945 | write_checkpoint(sbi, &cpc); | |
946 | } | |
aff063e2 | 947 | |
4e6a8d9b | 948 | /* be sure to wait for any on-going discard commands */ |
cf5c759f | 949 | dropped = f2fs_wait_discard_bios(sbi); |
4e6a8d9b | 950 | |
cf5c759f | 951 | if (f2fs_discard_en(sbi) && !sbi->discard_blks && !dropped) { |
1f43e2ad CY |
952 | struct cp_control cpc = { |
953 | .reason = CP_UMOUNT | CP_TRIMMED, | |
954 | }; | |
955 | write_checkpoint(sbi, &cpc); | |
956 | } | |
957 | ||
eca616f8 JK |
958 | /* write_checkpoint can update stat informaion */ |
959 | f2fs_destroy_stats(sbi); | |
960 | ||
cf779cab JK |
961 | /* |
962 | * normally superblock is clean, so we need to release this. | |
963 | * In addition, EIO will skip do checkpoint, we need this as well. | |
964 | */ | |
74ef9241 | 965 | release_ino_entry(sbi, true); |
6f12ac25 | 966 | |
2658e50d JK |
967 | f2fs_leave_shrinker(sbi); |
968 | mutex_unlock(&sbi->umount_mutex); | |
969 | ||
17c19120 | 970 | /* our cp_error case, we can wait for any writeback page */ |
b9109b0e | 971 | f2fs_flush_merged_writes(sbi); |
17c19120 | 972 | |
aff063e2 JK |
973 | iput(sbi->node_inode); |
974 | iput(sbi->meta_inode); | |
975 | ||
976 | /* destroy f2fs internal modules */ | |
977 | destroy_node_manager(sbi); | |
978 | destroy_segment_manager(sbi); | |
979 | ||
980 | kfree(sbi->ckpt); | |
a398101a | 981 | |
dc6b2055 | 982 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
983 | |
984 | sb->s_fs_info = NULL; | |
43b6573b KM |
985 | if (sbi->s_chksum_driver) |
986 | crypto_free_shash(sbi->s_chksum_driver); | |
b39f0de2 | 987 | kfree(sbi->raw_super); |
523be8a6 | 988 | |
3c62be17 | 989 | destroy_device_list(sbi); |
b6895e8f | 990 | mempool_destroy(sbi->write_io_dummy); |
4b2414d0 CY |
991 | #ifdef CONFIG_QUOTA |
992 | for (i = 0; i < MAXQUOTAS; i++) | |
993 | kfree(sbi->s_qf_names[i]); | |
994 | #endif | |
523be8a6 | 995 | destroy_percpu_info(sbi); |
a912b54d JK |
996 | for (i = 0; i < NR_PAGE_TYPE; i++) |
997 | kfree(sbi->write_io[i]); | |
aff063e2 JK |
998 | kfree(sbi); |
999 | } | |
1000 | ||
1001 | int f2fs_sync_fs(struct super_block *sb, int sync) | |
1002 | { | |
1003 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
c34f42e2 | 1004 | int err = 0; |
aff063e2 | 1005 | |
1f227a3e JK |
1006 | if (unlikely(f2fs_cp_error(sbi))) |
1007 | return 0; | |
1008 | ||
a2a4a7e4 NJ |
1009 | trace_f2fs_sync_fs(sb, sync); |
1010 | ||
4b2414d0 CY |
1011 | if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
1012 | return -EAGAIN; | |
1013 | ||
b7473754 | 1014 | if (sync) { |
d5053a34 JK |
1015 | struct cp_control cpc; |
1016 | ||
119ee914 JK |
1017 | cpc.reason = __get_cp_reason(sbi); |
1018 | ||
b7473754 | 1019 | mutex_lock(&sbi->gc_mutex); |
c34f42e2 | 1020 | err = write_checkpoint(sbi, &cpc); |
b7473754 | 1021 | mutex_unlock(&sbi->gc_mutex); |
b7473754 | 1022 | } |
05ca3632 | 1023 | f2fs_trace_ios(NULL, 1); |
aff063e2 | 1024 | |
c34f42e2 | 1025 | return err; |
aff063e2 JK |
1026 | } |
1027 | ||
d6212a5f CL |
1028 | static int f2fs_freeze(struct super_block *sb) |
1029 | { | |
77888c1e | 1030 | if (f2fs_readonly(sb)) |
d6212a5f CL |
1031 | return 0; |
1032 | ||
b4b9d34c JK |
1033 | /* IO error happened before */ |
1034 | if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) | |
1035 | return -EIO; | |
1036 | ||
1037 | /* must be clean, since sync_filesystem() was already called */ | |
1038 | if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) | |
1039 | return -EINVAL; | |
1040 | return 0; | |
d6212a5f CL |
1041 | } |
1042 | ||
1043 | static int f2fs_unfreeze(struct super_block *sb) | |
1044 | { | |
1045 | return 0; | |
1046 | } | |
1047 | ||
ddc34e32 CY |
1048 | #ifdef CONFIG_QUOTA |
1049 | static int f2fs_statfs_project(struct super_block *sb, | |
1050 | kprojid_t projid, struct kstatfs *buf) | |
1051 | { | |
1052 | struct kqid qid; | |
1053 | struct dquot *dquot; | |
1054 | u64 limit; | |
1055 | u64 curblock; | |
1056 | ||
1057 | qid = make_kqid_projid(projid); | |
1058 | dquot = dqget(sb, qid); | |
1059 | if (IS_ERR(dquot)) | |
1060 | return PTR_ERR(dquot); | |
1061 | spin_lock(&dq_data_lock); | |
1062 | ||
1063 | limit = (dquot->dq_dqb.dqb_bsoftlimit ? | |
1064 | dquot->dq_dqb.dqb_bsoftlimit : | |
1065 | dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; | |
1066 | if (limit && buf->f_blocks > limit) { | |
1067 | curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; | |
1068 | buf->f_blocks = limit; | |
1069 | buf->f_bfree = buf->f_bavail = | |
1070 | (buf->f_blocks > curblock) ? | |
1071 | (buf->f_blocks - curblock) : 0; | |
1072 | } | |
1073 | ||
1074 | limit = dquot->dq_dqb.dqb_isoftlimit ? | |
1075 | dquot->dq_dqb.dqb_isoftlimit : | |
1076 | dquot->dq_dqb.dqb_ihardlimit; | |
1077 | if (limit && buf->f_files > limit) { | |
1078 | buf->f_files = limit; | |
1079 | buf->f_ffree = | |
1080 | (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? | |
1081 | (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; | |
1082 | } | |
1083 | ||
1084 | spin_unlock(&dq_data_lock); | |
1085 | dqput(dquot); | |
1086 | return 0; | |
1087 | } | |
1088 | #endif | |
1089 | ||
aff063e2 JK |
1090 | static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
1091 | { | |
1092 | struct super_block *sb = dentry->d_sb; | |
1093 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1094 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); | |
f66c027e | 1095 | block_t total_count, user_block_count, start_count; |
0cc091d0 | 1096 | u64 avail_node_count; |
aff063e2 JK |
1097 | |
1098 | total_count = le64_to_cpu(sbi->raw_super->block_count); | |
1099 | user_block_count = sbi->user_block_count; | |
1100 | start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); | |
aff063e2 JK |
1101 | buf->f_type = F2FS_SUPER_MAGIC; |
1102 | buf->f_bsize = sbi->blocksize; | |
1103 | ||
1104 | buf->f_blocks = total_count - start_count; | |
f66c027e | 1105 | buf->f_bfree = user_block_count - valid_user_blocks(sbi) - |
80d42145 | 1106 | sbi->current_reserved_blocks; |
7e65be49 JK |
1107 | if (buf->f_bfree > sbi->root_reserved_blocks) |
1108 | buf->f_bavail = buf->f_bfree - sbi->root_reserved_blocks; | |
1109 | else | |
1110 | buf->f_bavail = 0; | |
aff063e2 | 1111 | |
292c196a CY |
1112 | avail_node_count = sbi->total_node_count - sbi->nquota_files - |
1113 | F2FS_RESERVED_NODE_NUM; | |
0cc091d0 JK |
1114 | |
1115 | if (avail_node_count > user_block_count) { | |
1116 | buf->f_files = user_block_count; | |
1117 | buf->f_ffree = buf->f_bavail; | |
1118 | } else { | |
1119 | buf->f_files = avail_node_count; | |
1120 | buf->f_ffree = min(avail_node_count - valid_node_count(sbi), | |
1121 | buf->f_bavail); | |
1122 | } | |
aff063e2 | 1123 | |
5a20d339 | 1124 | buf->f_namelen = F2FS_NAME_LEN; |
aff063e2 JK |
1125 | buf->f_fsid.val[0] = (u32)id; |
1126 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1127 | ||
ddc34e32 CY |
1128 | #ifdef CONFIG_QUOTA |
1129 | if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && | |
1130 | sb_has_quota_limits_enabled(sb, PRJQUOTA)) { | |
1131 | f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); | |
1132 | } | |
1133 | #endif | |
aff063e2 JK |
1134 | return 0; |
1135 | } | |
1136 | ||
4b2414d0 CY |
1137 | static inline void f2fs_show_quota_options(struct seq_file *seq, |
1138 | struct super_block *sb) | |
1139 | { | |
1140 | #ifdef CONFIG_QUOTA | |
1141 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1142 | ||
1143 | if (sbi->s_jquota_fmt) { | |
1144 | char *fmtname = ""; | |
1145 | ||
1146 | switch (sbi->s_jquota_fmt) { | |
1147 | case QFMT_VFS_OLD: | |
1148 | fmtname = "vfsold"; | |
1149 | break; | |
1150 | case QFMT_VFS_V0: | |
1151 | fmtname = "vfsv0"; | |
1152 | break; | |
1153 | case QFMT_VFS_V1: | |
1154 | fmtname = "vfsv1"; | |
1155 | break; | |
1156 | } | |
1157 | seq_printf(seq, ",jqfmt=%s", fmtname); | |
1158 | } | |
1159 | ||
1160 | if (sbi->s_qf_names[USRQUOTA]) | |
1161 | seq_show_option(seq, "usrjquota", sbi->s_qf_names[USRQUOTA]); | |
1162 | ||
1163 | if (sbi->s_qf_names[GRPQUOTA]) | |
1164 | seq_show_option(seq, "grpjquota", sbi->s_qf_names[GRPQUOTA]); | |
1165 | ||
1166 | if (sbi->s_qf_names[PRJQUOTA]) | |
1167 | seq_show_option(seq, "prjjquota", sbi->s_qf_names[PRJQUOTA]); | |
1168 | #endif | |
1169 | } | |
1170 | ||
aff063e2 JK |
1171 | static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
1172 | { | |
1173 | struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); | |
1174 | ||
6aefd93b JK |
1175 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { |
1176 | if (test_opt(sbi, FORCE_FG_GC)) | |
1177 | seq_printf(seq, ",background_gc=%s", "sync"); | |
1178 | else | |
1179 | seq_printf(seq, ",background_gc=%s", "on"); | |
1180 | } else { | |
696c018c | 1181 | seq_printf(seq, ",background_gc=%s", "off"); |
6aefd93b | 1182 | } |
aff063e2 JK |
1183 | if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
1184 | seq_puts(seq, ",disable_roll_forward"); | |
1185 | if (test_opt(sbi, DISCARD)) | |
1186 | seq_puts(seq, ",discard"); | |
1187 | if (test_opt(sbi, NOHEAP)) | |
7a20b8a6 JK |
1188 | seq_puts(seq, ",no_heap"); |
1189 | else | |
1190 | seq_puts(seq, ",heap"); | |
aff063e2 JK |
1191 | #ifdef CONFIG_F2FS_FS_XATTR |
1192 | if (test_opt(sbi, XATTR_USER)) | |
1193 | seq_puts(seq, ",user_xattr"); | |
1194 | else | |
1195 | seq_puts(seq, ",nouser_xattr"); | |
444c580f JK |
1196 | if (test_opt(sbi, INLINE_XATTR)) |
1197 | seq_puts(seq, ",inline_xattr"); | |
23cf7212 CY |
1198 | else |
1199 | seq_puts(seq, ",noinline_xattr"); | |
6afc662e CY |
1200 | if (test_opt(sbi, INLINE_XATTR_SIZE)) |
1201 | seq_printf(seq, ",inline_xattr_size=%u", | |
1202 | sbi->inline_xattr_size); | |
aff063e2 JK |
1203 | #endif |
1204 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1205 | if (test_opt(sbi, POSIX_ACL)) | |
1206 | seq_puts(seq, ",acl"); | |
1207 | else | |
1208 | seq_puts(seq, ",noacl"); | |
1209 | #endif | |
1210 | if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) | |
aa43507f | 1211 | seq_puts(seq, ",disable_ext_identify"); |
8274de77 HL |
1212 | if (test_opt(sbi, INLINE_DATA)) |
1213 | seq_puts(seq, ",inline_data"); | |
75342797 WL |
1214 | else |
1215 | seq_puts(seq, ",noinline_data"); | |
5efd3c6f CY |
1216 | if (test_opt(sbi, INLINE_DENTRY)) |
1217 | seq_puts(seq, ",inline_dentry"); | |
97c1794a CY |
1218 | else |
1219 | seq_puts(seq, ",noinline_dentry"); | |
b270ad6f | 1220 | if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
6b4afdd7 | 1221 | seq_puts(seq, ",flush_merge"); |
0f7b2abd JK |
1222 | if (test_opt(sbi, NOBARRIER)) |
1223 | seq_puts(seq, ",nobarrier"); | |
d5053a34 JK |
1224 | if (test_opt(sbi, FASTBOOT)) |
1225 | seq_puts(seq, ",fastboot"); | |
89672159 CY |
1226 | if (test_opt(sbi, EXTENT_CACHE)) |
1227 | seq_puts(seq, ",extent_cache"); | |
7daaea25 JK |
1228 | else |
1229 | seq_puts(seq, ",noextent_cache"); | |
343f40f0 CY |
1230 | if (test_opt(sbi, DATA_FLUSH)) |
1231 | seq_puts(seq, ",data_flush"); | |
36abef4e JK |
1232 | |
1233 | seq_puts(seq, ",mode="); | |
1234 | if (test_opt(sbi, ADAPTIVE)) | |
1235 | seq_puts(seq, "adaptive"); | |
1236 | else if (test_opt(sbi, LFS)) | |
1237 | seq_puts(seq, "lfs"); | |
aff063e2 | 1238 | seq_printf(seq, ",active_logs=%u", sbi->active_logs); |
7e65be49 | 1239 | if (test_opt(sbi, RESERVE_ROOT)) |
7c2e5963 JK |
1240 | seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u", |
1241 | sbi->root_reserved_blocks, | |
1242 | from_kuid_munged(&init_user_ns, sbi->s_resuid), | |
1243 | from_kgid_munged(&init_user_ns, sbi->s_resgid)); | |
ec91538d JK |
1244 | if (F2FS_IO_SIZE_BITS(sbi)) |
1245 | seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); | |
0cc0dec2 KX |
1246 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1247 | if (test_opt(sbi, FAULT_INJECTION)) | |
44529f89 CY |
1248 | seq_printf(seq, ",fault_injection=%u", |
1249 | sbi->fault_info.inject_rate); | |
0cc0dec2 | 1250 | #endif |
0abd675e | 1251 | #ifdef CONFIG_QUOTA |
4b2414d0 CY |
1252 | if (test_opt(sbi, QUOTA)) |
1253 | seq_puts(seq, ",quota"); | |
0abd675e CY |
1254 | if (test_opt(sbi, USRQUOTA)) |
1255 | seq_puts(seq, ",usrquota"); | |
1256 | if (test_opt(sbi, GRPQUOTA)) | |
1257 | seq_puts(seq, ",grpquota"); | |
5c57132e CY |
1258 | if (test_opt(sbi, PRJQUOTA)) |
1259 | seq_puts(seq, ",prjquota"); | |
0cc0dec2 | 1260 | #endif |
4b2414d0 | 1261 | f2fs_show_quota_options(seq, sbi->sb); |
0cdd3195 HL |
1262 | if (sbi->whint_mode == WHINT_MODE_USER) |
1263 | seq_printf(seq, ",whint_mode=%s", "user-based"); | |
f2e703f9 HL |
1264 | else if (sbi->whint_mode == WHINT_MODE_FS) |
1265 | seq_printf(seq, ",whint_mode=%s", "fs-based"); | |
aff063e2 JK |
1266 | |
1267 | return 0; | |
1268 | } | |
1269 | ||
498c5e9f YH |
1270 | static void default_options(struct f2fs_sb_info *sbi) |
1271 | { | |
1272 | /* init some FS parameters */ | |
1273 | sbi->active_logs = NR_CURSEG_TYPE; | |
6afc662e | 1274 | sbi->inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
0cdd3195 | 1275 | sbi->whint_mode = WHINT_MODE_OFF; |
498c5e9f YH |
1276 | |
1277 | set_opt(sbi, BG_GC); | |
39133a50 | 1278 | set_opt(sbi, INLINE_XATTR); |
498c5e9f | 1279 | set_opt(sbi, INLINE_DATA); |
97c1794a | 1280 | set_opt(sbi, INLINE_DENTRY); |
3e72f721 | 1281 | set_opt(sbi, EXTENT_CACHE); |
7a20b8a6 | 1282 | set_opt(sbi, NOHEAP); |
1751e8a6 | 1283 | sbi->sb->s_flags |= SB_LAZYTIME; |
69e9e427 | 1284 | set_opt(sbi, FLUSH_MERGE); |
0bfd7a09 | 1285 | if (f2fs_sb_mounted_blkzoned(sbi->sb)) { |
52763a4b JK |
1286 | set_opt_mode(sbi, F2FS_MOUNT_LFS); |
1287 | set_opt(sbi, DISCARD); | |
1288 | } else { | |
1289 | set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); | |
1290 | } | |
498c5e9f YH |
1291 | |
1292 | #ifdef CONFIG_F2FS_FS_XATTR | |
1293 | set_opt(sbi, XATTR_USER); | |
1294 | #endif | |
1295 | #ifdef CONFIG_F2FS_FS_POSIX_ACL | |
1296 | set_opt(sbi, POSIX_ACL); | |
1297 | #endif | |
36dbd328 CY |
1298 | |
1299 | #ifdef CONFIG_F2FS_FAULT_INJECTION | |
1300 | f2fs_build_fault_attr(sbi, 0); | |
1301 | #endif | |
498c5e9f YH |
1302 | } |
1303 | ||
ea676733 JK |
1304 | #ifdef CONFIG_QUOTA |
1305 | static int f2fs_enable_quotas(struct super_block *sb); | |
1306 | #endif | |
696c018c NJ |
1307 | static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
1308 | { | |
1309 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1310 | struct f2fs_mount_info org_mount_opt; | |
0abd675e | 1311 | unsigned long old_sb_flags; |
696c018c | 1312 | int err, active_logs; |
876dc59e GZ |
1313 | bool need_restart_gc = false; |
1314 | bool need_stop_gc = false; | |
9cd81ce3 | 1315 | bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
0cdd3195 | 1316 | int old_whint_mode = sbi->whint_mode; |
2443b8b3 CY |
1317 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1318 | struct f2fs_fault_info ffi = sbi->fault_info; | |
1319 | #endif | |
4b2414d0 CY |
1320 | #ifdef CONFIG_QUOTA |
1321 | int s_jquota_fmt; | |
1322 | char *s_qf_names[MAXQUOTAS]; | |
1323 | int i, j; | |
1324 | #endif | |
696c018c NJ |
1325 | |
1326 | /* | |
1327 | * Save the old mount options in case we | |
1328 | * need to restore them. | |
1329 | */ | |
1330 | org_mount_opt = sbi->mount_opt; | |
0abd675e | 1331 | old_sb_flags = sb->s_flags; |
696c018c NJ |
1332 | active_logs = sbi->active_logs; |
1333 | ||
4b2414d0 CY |
1334 | #ifdef CONFIG_QUOTA |
1335 | s_jquota_fmt = sbi->s_jquota_fmt; | |
1336 | for (i = 0; i < MAXQUOTAS; i++) { | |
1337 | if (sbi->s_qf_names[i]) { | |
1338 | s_qf_names[i] = kstrdup(sbi->s_qf_names[i], | |
1339 | GFP_KERNEL); | |
1340 | if (!s_qf_names[i]) { | |
1341 | for (j = 0; j < i; j++) | |
1342 | kfree(s_qf_names[j]); | |
1343 | return -ENOMEM; | |
1344 | } | |
1345 | } else { | |
1346 | s_qf_names[i] = NULL; | |
1347 | } | |
1348 | } | |
1349 | #endif | |
1350 | ||
df728b0f | 1351 | /* recover superblocks we couldn't write due to previous RO mount */ |
1751e8a6 | 1352 | if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { |
df728b0f JK |
1353 | err = f2fs_commit_super(sbi, false); |
1354 | f2fs_msg(sb, KERN_INFO, | |
1355 | "Try to recover all the superblocks, ret: %d", err); | |
1356 | if (!err) | |
1357 | clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
1358 | } | |
1359 | ||
498c5e9f | 1360 | default_options(sbi); |
26666c8a | 1361 | |
696c018c NJ |
1362 | /* parse mount options */ |
1363 | err = parse_options(sb, data); | |
1364 | if (err) | |
1365 | goto restore_opts; | |
1366 | ||
1367 | /* | |
1368 | * Previous and new state of filesystem is RO, | |
876dc59e | 1369 | * so skip checking GC and FLUSH_MERGE conditions. |
696c018c | 1370 | */ |
1751e8a6 | 1371 | if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) |
696c018c NJ |
1372 | goto skip; |
1373 | ||
ea676733 | 1374 | #ifdef CONFIG_QUOTA |
1751e8a6 | 1375 | if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { |
0abd675e CY |
1376 | err = dquot_suspend(sb, -1); |
1377 | if (err < 0) | |
1378 | goto restore_opts; | |
6279398d | 1379 | } else if (f2fs_readonly(sb) && !(*flags & MS_RDONLY)) { |
0abd675e | 1380 | /* dquot_resume needs RW */ |
1751e8a6 | 1381 | sb->s_flags &= ~SB_RDONLY; |
ea676733 JK |
1382 | if (sb_any_quota_suspended(sb)) { |
1383 | dquot_resume(sb, -1); | |
1384 | } else if (f2fs_sb_has_quota_ino(sb)) { | |
1385 | err = f2fs_enable_quotas(sb); | |
1386 | if (err) | |
1387 | goto restore_opts; | |
1388 | } | |
0abd675e | 1389 | } |
ea676733 | 1390 | #endif |
9cd81ce3 CY |
1391 | /* disallow enable/disable extent_cache dynamically */ |
1392 | if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { | |
1393 | err = -EINVAL; | |
1394 | f2fs_msg(sbi->sb, KERN_WARNING, | |
1395 | "switch extent_cache option is not allowed"); | |
1396 | goto restore_opts; | |
1397 | } | |
1398 | ||
696c018c NJ |
1399 | /* |
1400 | * We stop the GC thread if FS is mounted as RO | |
1401 | * or if background_gc = off is passed in mount | |
1402 | * option. Also sync the filesystem. | |
1403 | */ | |
1751e8a6 | 1404 | if ((*flags & SB_RDONLY) || !test_opt(sbi, BG_GC)) { |
696c018c NJ |
1405 | if (sbi->gc_thread) { |
1406 | stop_gc_thread(sbi); | |
876dc59e | 1407 | need_restart_gc = true; |
696c018c | 1408 | } |
aba291b3 | 1409 | } else if (!sbi->gc_thread) { |
696c018c NJ |
1410 | err = start_gc_thread(sbi); |
1411 | if (err) | |
1412 | goto restore_opts; | |
876dc59e GZ |
1413 | need_stop_gc = true; |
1414 | } | |
1415 | ||
0cdd3195 | 1416 | if (*flags & SB_RDONLY || sbi->whint_mode != old_whint_mode) { |
faa0e55b JK |
1417 | writeback_inodes_sb(sb, WB_REASON_SYNC); |
1418 | sync_inodes_sb(sb); | |
1419 | ||
1420 | set_sbi_flag(sbi, SBI_IS_DIRTY); | |
1421 | set_sbi_flag(sbi, SBI_IS_CLOSE); | |
1422 | f2fs_sync_fs(sb, 1); | |
1423 | clear_sbi_flag(sbi, SBI_IS_CLOSE); | |
1424 | } | |
1425 | ||
876dc59e GZ |
1426 | /* |
1427 | * We stop issue flush thread if FS is mounted as RO | |
1428 | * or if flush_merge is not passed in mount option. | |
1429 | */ | |
1751e8a6 | 1430 | if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { |
5eba8c5d JK |
1431 | clear_opt(sbi, FLUSH_MERGE); |
1432 | destroy_flush_cmd_control(sbi, false); | |
1433 | } else { | |
2163d198 GZ |
1434 | err = create_flush_cmd_control(sbi); |
1435 | if (err) | |
a688b9d9 | 1436 | goto restore_gc; |
696c018c NJ |
1437 | } |
1438 | skip: | |
4b2414d0 CY |
1439 | #ifdef CONFIG_QUOTA |
1440 | /* Release old quota file names */ | |
1441 | for (i = 0; i < MAXQUOTAS; i++) | |
1442 | kfree(s_qf_names[i]); | |
1443 | #endif | |
696c018c | 1444 | /* Update the POSIXACL Flag */ |
1751e8a6 LT |
1445 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
1446 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
df728b0f | 1447 | |
7e65be49 | 1448 | limit_reserve_root(sbi); |
696c018c | 1449 | return 0; |
876dc59e GZ |
1450 | restore_gc: |
1451 | if (need_restart_gc) { | |
1452 | if (start_gc_thread(sbi)) | |
1453 | f2fs_msg(sbi->sb, KERN_WARNING, | |
e1c42045 | 1454 | "background gc thread has stopped"); |
876dc59e GZ |
1455 | } else if (need_stop_gc) { |
1456 | stop_gc_thread(sbi); | |
1457 | } | |
696c018c | 1458 | restore_opts: |
4b2414d0 CY |
1459 | #ifdef CONFIG_QUOTA |
1460 | sbi->s_jquota_fmt = s_jquota_fmt; | |
1461 | for (i = 0; i < MAXQUOTAS; i++) { | |
1462 | kfree(sbi->s_qf_names[i]); | |
1463 | sbi->s_qf_names[i] = s_qf_names[i]; | |
1464 | } | |
1465 | #endif | |
0cdd3195 | 1466 | sbi->whint_mode = old_whint_mode; |
696c018c NJ |
1467 | sbi->mount_opt = org_mount_opt; |
1468 | sbi->active_logs = active_logs; | |
0abd675e | 1469 | sb->s_flags = old_sb_flags; |
2443b8b3 CY |
1470 | #ifdef CONFIG_F2FS_FAULT_INJECTION |
1471 | sbi->fault_info = ffi; | |
1472 | #endif | |
696c018c NJ |
1473 | return err; |
1474 | } | |
1475 | ||
0abd675e CY |
1476 | #ifdef CONFIG_QUOTA |
1477 | /* Read data from quotafile */ | |
1478 | static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, | |
1479 | size_t len, loff_t off) | |
1480 | { | |
1481 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1482 | struct address_space *mapping = inode->i_mapping; | |
1483 | block_t blkidx = F2FS_BYTES_TO_BLK(off); | |
1484 | int offset = off & (sb->s_blocksize - 1); | |
1485 | int tocopy; | |
1486 | size_t toread; | |
1487 | loff_t i_size = i_size_read(inode); | |
1488 | struct page *page; | |
1489 | char *kaddr; | |
1490 | ||
1491 | if (off > i_size) | |
1492 | return 0; | |
1493 | ||
1494 | if (off + len > i_size) | |
1495 | len = i_size - off; | |
1496 | toread = len; | |
1497 | while (toread > 0) { | |
1498 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); | |
1499 | repeat: | |
1500 | page = read_mapping_page(mapping, blkidx, NULL); | |
4e46a023 JK |
1501 | if (IS_ERR(page)) { |
1502 | if (PTR_ERR(page) == -ENOMEM) { | |
1503 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1504 | goto repeat; | |
1505 | } | |
0abd675e | 1506 | return PTR_ERR(page); |
4e46a023 | 1507 | } |
0abd675e CY |
1508 | |
1509 | lock_page(page); | |
1510 | ||
1511 | if (unlikely(page->mapping != mapping)) { | |
1512 | f2fs_put_page(page, 1); | |
1513 | goto repeat; | |
1514 | } | |
1515 | if (unlikely(!PageUptodate(page))) { | |
1516 | f2fs_put_page(page, 1); | |
1517 | return -EIO; | |
1518 | } | |
1519 | ||
1520 | kaddr = kmap_atomic(page); | |
1521 | memcpy(data, kaddr + offset, tocopy); | |
1522 | kunmap_atomic(kaddr); | |
1523 | f2fs_put_page(page, 1); | |
1524 | ||
1525 | offset = 0; | |
1526 | toread -= tocopy; | |
1527 | data += tocopy; | |
1528 | blkidx++; | |
1529 | } | |
1530 | return len; | |
1531 | } | |
1532 | ||
1533 | /* Write to quotafile */ | |
1534 | static ssize_t f2fs_quota_write(struct super_block *sb, int type, | |
1535 | const char *data, size_t len, loff_t off) | |
1536 | { | |
1537 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1538 | struct address_space *mapping = inode->i_mapping; | |
1539 | const struct address_space_operations *a_ops = mapping->a_ops; | |
1540 | int offset = off & (sb->s_blocksize - 1); | |
1541 | size_t towrite = len; | |
1542 | struct page *page; | |
1543 | char *kaddr; | |
1544 | int err = 0; | |
1545 | int tocopy; | |
1546 | ||
1547 | while (towrite > 0) { | |
1548 | tocopy = min_t(unsigned long, sb->s_blocksize - offset, | |
1549 | towrite); | |
4e46a023 | 1550 | retry: |
0abd675e CY |
1551 | err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, |
1552 | &page, NULL); | |
4e46a023 JK |
1553 | if (unlikely(err)) { |
1554 | if (err == -ENOMEM) { | |
1555 | congestion_wait(BLK_RW_ASYNC, HZ/50); | |
1556 | goto retry; | |
1557 | } | |
0abd675e | 1558 | break; |
4e46a023 | 1559 | } |
0abd675e CY |
1560 | |
1561 | kaddr = kmap_atomic(page); | |
1562 | memcpy(kaddr + offset, data, tocopy); | |
1563 | kunmap_atomic(kaddr); | |
1564 | flush_dcache_page(page); | |
1565 | ||
1566 | a_ops->write_end(NULL, mapping, off, tocopy, tocopy, | |
1567 | page, NULL); | |
1568 | offset = 0; | |
1569 | towrite -= tocopy; | |
1570 | off += tocopy; | |
1571 | data += tocopy; | |
1572 | cond_resched(); | |
1573 | } | |
1574 | ||
1575 | if (len == towrite) | |
6e5b5d41 | 1576 | return err; |
0abd675e CY |
1577 | inode->i_mtime = inode->i_ctime = current_time(inode); |
1578 | f2fs_mark_inode_dirty_sync(inode, false); | |
1579 | return len - towrite; | |
1580 | } | |
1581 | ||
1582 | static struct dquot **f2fs_get_dquots(struct inode *inode) | |
1583 | { | |
1584 | return F2FS_I(inode)->i_dquot; | |
1585 | } | |
1586 | ||
1587 | static qsize_t *f2fs_get_reserved_space(struct inode *inode) | |
1588 | { | |
1589 | return &F2FS_I(inode)->i_reserved_quota; | |
1590 | } | |
1591 | ||
4b2414d0 CY |
1592 | static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
1593 | { | |
1594 | return dquot_quota_on_mount(sbi->sb, sbi->s_qf_names[type], | |
1595 | sbi->s_jquota_fmt, type); | |
1596 | } | |
1597 | ||
ea676733 | 1598 | int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) |
4b2414d0 | 1599 | { |
ea676733 JK |
1600 | int enabled = 0; |
1601 | int i, err; | |
1602 | ||
1603 | if (f2fs_sb_has_quota_ino(sbi->sb) && rdonly) { | |
1604 | err = f2fs_enable_quotas(sbi->sb); | |
1605 | if (err) { | |
1606 | f2fs_msg(sbi->sb, KERN_ERR, | |
1607 | "Cannot turn on quota_ino: %d", err); | |
1608 | return 0; | |
1609 | } | |
1610 | return 1; | |
1611 | } | |
4b2414d0 CY |
1612 | |
1613 | for (i = 0; i < MAXQUOTAS; i++) { | |
1614 | if (sbi->s_qf_names[i]) { | |
ea676733 JK |
1615 | err = f2fs_quota_on_mount(sbi, i); |
1616 | if (!err) { | |
1617 | enabled = 1; | |
1618 | continue; | |
1619 | } | |
1620 | f2fs_msg(sbi->sb, KERN_ERR, | |
1621 | "Cannot turn on quotas: %d on %d", err, i); | |
4b2414d0 CY |
1622 | } |
1623 | } | |
ea676733 JK |
1624 | return enabled; |
1625 | } | |
1626 | ||
1627 | static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, | |
1628 | unsigned int flags) | |
1629 | { | |
1630 | struct inode *qf_inode; | |
1631 | unsigned long qf_inum; | |
1632 | int err; | |
1633 | ||
1634 | BUG_ON(!f2fs_sb_has_quota_ino(sb)); | |
1635 | ||
1636 | qf_inum = f2fs_qf_ino(sb, type); | |
1637 | if (!qf_inum) | |
1638 | return -EPERM; | |
1639 | ||
1640 | qf_inode = f2fs_iget(sb, qf_inum); | |
1641 | if (IS_ERR(qf_inode)) { | |
1642 | f2fs_msg(sb, KERN_ERR, | |
1643 | "Bad quota inode %u:%lu", type, qf_inum); | |
1644 | return PTR_ERR(qf_inode); | |
1645 | } | |
1646 | ||
1647 | /* Don't account quota for quota files to avoid recursion */ | |
1648 | qf_inode->i_flags |= S_NOQUOTA; | |
1649 | err = dquot_enable(qf_inode, type, format_id, flags); | |
1650 | iput(qf_inode); | |
1651 | return err; | |
1652 | } | |
1653 | ||
1654 | static int f2fs_enable_quotas(struct super_block *sb) | |
1655 | { | |
1656 | int type, err = 0; | |
1657 | unsigned long qf_inum; | |
1658 | bool quota_mopt[MAXQUOTAS] = { | |
1659 | test_opt(F2FS_SB(sb), USRQUOTA), | |
1660 | test_opt(F2FS_SB(sb), GRPQUOTA), | |
1661 | test_opt(F2FS_SB(sb), PRJQUOTA), | |
1662 | }; | |
1663 | ||
1664 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; | |
1665 | for (type = 0; type < MAXQUOTAS; type++) { | |
1666 | qf_inum = f2fs_qf_ino(sb, type); | |
1667 | if (qf_inum) { | |
1668 | err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, | |
1669 | DQUOT_USAGE_ENABLED | | |
1670 | (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); | |
1671 | if (err) { | |
1672 | f2fs_msg(sb, KERN_ERR, | |
1673 | "Failed to enable quota tracking " | |
1674 | "(type=%d, err=%d). Please run " | |
1675 | "fsck to fix.", type, err); | |
1676 | for (type--; type >= 0; type--) | |
1677 | dquot_quota_off(sb, type); | |
1678 | return err; | |
1679 | } | |
4b2414d0 CY |
1680 | } |
1681 | } | |
ea676733 | 1682 | return 0; |
4b2414d0 CY |
1683 | } |
1684 | ||
0abd675e CY |
1685 | static int f2fs_quota_sync(struct super_block *sb, int type) |
1686 | { | |
1687 | struct quota_info *dqopt = sb_dqopt(sb); | |
1688 | int cnt; | |
1689 | int ret; | |
1690 | ||
1691 | ret = dquot_writeback_dquots(sb, type); | |
1692 | if (ret) | |
1693 | return ret; | |
1694 | ||
1695 | /* | |
1696 | * Now when everything is written we can discard the pagecache so | |
1697 | * that userspace sees the changes. | |
1698 | */ | |
1699 | for (cnt = 0; cnt < MAXQUOTAS; cnt++) { | |
1700 | if (type != -1 && cnt != type) | |
1701 | continue; | |
1702 | if (!sb_has_quota_active(sb, cnt)) | |
1703 | continue; | |
1704 | ||
1705 | ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); | |
1706 | if (ret) | |
1707 | return ret; | |
1708 | ||
1709 | inode_lock(dqopt->files[cnt]); | |
1710 | truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); | |
1711 | inode_unlock(dqopt->files[cnt]); | |
1712 | } | |
1713 | return 0; | |
1714 | } | |
1715 | ||
1716 | static int f2fs_quota_on(struct super_block *sb, int type, int format_id, | |
1717 | const struct path *path) | |
1718 | { | |
1719 | struct inode *inode; | |
1720 | int err; | |
1721 | ||
9a20d391 | 1722 | err = f2fs_quota_sync(sb, type); |
0abd675e CY |
1723 | if (err) |
1724 | return err; | |
1725 | ||
1726 | err = dquot_quota_on(sb, type, format_id, path); | |
1727 | if (err) | |
1728 | return err; | |
1729 | ||
1730 | inode = d_inode(path->dentry); | |
1731 | ||
1732 | inode_lock(inode); | |
1733 | F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; | |
1734 | inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, | |
1735 | S_NOATIME | S_IMMUTABLE); | |
1736 | inode_unlock(inode); | |
1737 | f2fs_mark_inode_dirty_sync(inode, false); | |
1738 | ||
1739 | return 0; | |
1740 | } | |
1741 | ||
1742 | static int f2fs_quota_off(struct super_block *sb, int type) | |
1743 | { | |
1744 | struct inode *inode = sb_dqopt(sb)->files[type]; | |
1745 | int err; | |
1746 | ||
1747 | if (!inode || !igrab(inode)) | |
1748 | return dquot_quota_off(sb, type); | |
1749 | ||
9a20d391 | 1750 | f2fs_quota_sync(sb, type); |
0abd675e CY |
1751 | |
1752 | err = dquot_quota_off(sb, type); | |
ea676733 | 1753 | if (err || f2fs_sb_has_quota_ino(sb)) |
0abd675e CY |
1754 | goto out_put; |
1755 | ||
1756 | inode_lock(inode); | |
1757 | F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); | |
1758 | inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); | |
1759 | inode_unlock(inode); | |
1760 | f2fs_mark_inode_dirty_sync(inode, false); | |
1761 | out_put: | |
1762 | iput(inode); | |
1763 | return err; | |
1764 | } | |
1765 | ||
4b2414d0 | 1766 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1767 | { |
1768 | int type; | |
1769 | ||
1770 | for (type = 0; type < MAXQUOTAS; type++) | |
1771 | f2fs_quota_off(sb, type); | |
1772 | } | |
1773 | ||
94b1e10e | 1774 | static int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
5c57132e CY |
1775 | { |
1776 | *projid = F2FS_I(inode)->i_projid; | |
1777 | return 0; | |
1778 | } | |
1779 | ||
0abd675e CY |
1780 | static const struct dquot_operations f2fs_quota_operations = { |
1781 | .get_reserved_space = f2fs_get_reserved_space, | |
1782 | .write_dquot = dquot_commit, | |
1783 | .acquire_dquot = dquot_acquire, | |
1784 | .release_dquot = dquot_release, | |
1785 | .mark_dirty = dquot_mark_dquot_dirty, | |
1786 | .write_info = dquot_commit_info, | |
1787 | .alloc_dquot = dquot_alloc, | |
1788 | .destroy_dquot = dquot_destroy, | |
5c57132e | 1789 | .get_projid = f2fs_get_projid, |
0abd675e CY |
1790 | .get_next_id = dquot_get_next_id, |
1791 | }; | |
1792 | ||
1793 | static const struct quotactl_ops f2fs_quotactl_ops = { | |
1794 | .quota_on = f2fs_quota_on, | |
1795 | .quota_off = f2fs_quota_off, | |
1796 | .quota_sync = f2fs_quota_sync, | |
1797 | .get_state = dquot_get_state, | |
1798 | .set_info = dquot_set_dqinfo, | |
1799 | .get_dqblk = dquot_get_dqblk, | |
1800 | .set_dqblk = dquot_set_dqblk, | |
1801 | .get_nextdqblk = dquot_get_next_dqblk, | |
1802 | }; | |
1803 | #else | |
4b2414d0 | 1804 | void f2fs_quota_off_umount(struct super_block *sb) |
0abd675e CY |
1805 | { |
1806 | } | |
1807 | #endif | |
1808 | ||
f62fc9f9 | 1809 | static const struct super_operations f2fs_sops = { |
aff063e2 | 1810 | .alloc_inode = f2fs_alloc_inode, |
531ad7d5 | 1811 | .drop_inode = f2fs_drop_inode, |
aff063e2 JK |
1812 | .destroy_inode = f2fs_destroy_inode, |
1813 | .write_inode = f2fs_write_inode, | |
b3783873 | 1814 | .dirty_inode = f2fs_dirty_inode, |
aff063e2 | 1815 | .show_options = f2fs_show_options, |
0abd675e CY |
1816 | #ifdef CONFIG_QUOTA |
1817 | .quota_read = f2fs_quota_read, | |
1818 | .quota_write = f2fs_quota_write, | |
1819 | .get_dquots = f2fs_get_dquots, | |
1820 | #endif | |
aff063e2 JK |
1821 | .evict_inode = f2fs_evict_inode, |
1822 | .put_super = f2fs_put_super, | |
1823 | .sync_fs = f2fs_sync_fs, | |
d6212a5f CL |
1824 | .freeze_fs = f2fs_freeze, |
1825 | .unfreeze_fs = f2fs_unfreeze, | |
aff063e2 | 1826 | .statfs = f2fs_statfs, |
696c018c | 1827 | .remount_fs = f2fs_remount, |
aff063e2 JK |
1828 | }; |
1829 | ||
0b81d077 JK |
1830 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
1831 | static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) | |
1832 | { | |
1833 | return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1834 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1835 | ctx, len, NULL); | |
1836 | } | |
1837 | ||
1838 | static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, | |
1839 | void *fs_data) | |
1840 | { | |
1841 | return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, | |
1842 | F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, | |
1843 | ctx, len, fs_data, XATTR_CREATE); | |
1844 | } | |
1845 | ||
1846 | static unsigned f2fs_max_namelen(struct inode *inode) | |
1847 | { | |
1848 | return S_ISLNK(inode->i_mode) ? | |
1849 | inode->i_sb->s_blocksize : F2FS_NAME_LEN; | |
1850 | } | |
1851 | ||
6f69f0ed | 1852 | static const struct fscrypt_operations f2fs_cryptops = { |
a5d431ef | 1853 | .key_prefix = "f2fs:", |
0b81d077 JK |
1854 | .get_context = f2fs_get_context, |
1855 | .set_context = f2fs_set_context, | |
0b81d077 JK |
1856 | .empty_dir = f2fs_empty_dir, |
1857 | .max_namelen = f2fs_max_namelen, | |
1858 | }; | |
0b81d077 JK |
1859 | #endif |
1860 | ||
aff063e2 JK |
1861 | static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
1862 | u64 ino, u32 generation) | |
1863 | { | |
1864 | struct f2fs_sb_info *sbi = F2FS_SB(sb); | |
1865 | struct inode *inode; | |
1866 | ||
d6b7d4b3 | 1867 | if (check_nid_range(sbi, ino)) |
910bb12d | 1868 | return ERR_PTR(-ESTALE); |
aff063e2 JK |
1869 | |
1870 | /* | |
1871 | * f2fs_iget isn't quite right if the inode is currently unallocated! | |
1872 | * However f2fs_iget currently does appropriate checks to handle stale | |
1873 | * inodes so everything is OK. | |
1874 | */ | |
1875 | inode = f2fs_iget(sb, ino); | |
1876 | if (IS_ERR(inode)) | |
1877 | return ERR_CAST(inode); | |
6bacf52f | 1878 | if (unlikely(generation && inode->i_generation != generation)) { |
aff063e2 JK |
1879 | /* we didn't find the right inode.. */ |
1880 | iput(inode); | |
1881 | return ERR_PTR(-ESTALE); | |
1882 | } | |
1883 | return inode; | |
1884 | } | |
1885 | ||
1886 | static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, | |
1887 | int fh_len, int fh_type) | |
1888 | { | |
1889 | return generic_fh_to_dentry(sb, fid, fh_len, fh_type, | |
1890 | f2fs_nfs_get_inode); | |
1891 | } | |
1892 | ||
1893 | static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, | |
1894 | int fh_len, int fh_type) | |
1895 | { | |
1896 | return generic_fh_to_parent(sb, fid, fh_len, fh_type, | |
1897 | f2fs_nfs_get_inode); | |
1898 | } | |
1899 | ||
1900 | static const struct export_operations f2fs_export_ops = { | |
1901 | .fh_to_dentry = f2fs_fh_to_dentry, | |
1902 | .fh_to_parent = f2fs_fh_to_parent, | |
1903 | .get_parent = f2fs_get_parent, | |
1904 | }; | |
1905 | ||
e0afc4d6 | 1906 | static loff_t max_file_blocks(void) |
aff063e2 | 1907 | { |
7a2af766 | 1908 | loff_t result = 0; |
aff063e2 JK |
1909 | loff_t leaf_count = ADDRS_PER_BLOCK; |
1910 | ||
7a2af766 CY |
1911 | /* |
1912 | * note: previously, result is equal to (DEF_ADDRS_PER_INODE - | |
6afc662e | 1913 | * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more |
7a2af766 CY |
1914 | * space in inode.i_addr, it will be more safe to reassign |
1915 | * result as zero. | |
1916 | */ | |
1917 | ||
aff063e2 JK |
1918 | /* two direct node blocks */ |
1919 | result += (leaf_count * 2); | |
1920 | ||
1921 | /* two indirect node blocks */ | |
1922 | leaf_count *= NIDS_PER_BLOCK; | |
1923 | result += (leaf_count * 2); | |
1924 | ||
1925 | /* one double indirect node block */ | |
1926 | leaf_count *= NIDS_PER_BLOCK; | |
1927 | result += leaf_count; | |
1928 | ||
aff063e2 JK |
1929 | return result; |
1930 | } | |
1931 | ||
fd694733 JK |
1932 | static int __f2fs_commit_super(struct buffer_head *bh, |
1933 | struct f2fs_super_block *super) | |
1934 | { | |
1935 | lock_buffer(bh); | |
1936 | if (super) | |
1937 | memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); | |
fd694733 JK |
1938 | set_buffer_dirty(bh); |
1939 | unlock_buffer(bh); | |
1940 | ||
1941 | /* it's rare case, we can do fua all the time */ | |
3adc5fcb | 1942 | return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
fd694733 JK |
1943 | } |
1944 | ||
df728b0f | 1945 | static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
fd694733 | 1946 | struct buffer_head *bh) |
9a59b62f | 1947 | { |
fd694733 JK |
1948 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
1949 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 1950 | struct super_block *sb = sbi->sb; |
9a59b62f CY |
1951 | u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
1952 | u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); | |
1953 | u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); | |
1954 | u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); | |
1955 | u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); | |
1956 | u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); | |
1957 | u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); | |
1958 | u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); | |
1959 | u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); | |
1960 | u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); | |
1961 | u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); | |
1962 | u32 segment_count = le32_to_cpu(raw_super->segment_count); | |
1963 | u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
fd694733 JK |
1964 | u64 main_end_blkaddr = main_blkaddr + |
1965 | (segment_count_main << log_blocks_per_seg); | |
1966 | u64 seg_end_blkaddr = segment0_blkaddr + | |
1967 | (segment_count << log_blocks_per_seg); | |
9a59b62f CY |
1968 | |
1969 | if (segment0_blkaddr != cp_blkaddr) { | |
1970 | f2fs_msg(sb, KERN_INFO, | |
1971 | "Mismatch start address, segment0(%u) cp_blkaddr(%u)", | |
1972 | segment0_blkaddr, cp_blkaddr); | |
1973 | return true; | |
1974 | } | |
1975 | ||
1976 | if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != | |
1977 | sit_blkaddr) { | |
1978 | f2fs_msg(sb, KERN_INFO, | |
1979 | "Wrong CP boundary, start(%u) end(%u) blocks(%u)", | |
1980 | cp_blkaddr, sit_blkaddr, | |
1981 | segment_count_ckpt << log_blocks_per_seg); | |
1982 | return true; | |
1983 | } | |
1984 | ||
1985 | if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != | |
1986 | nat_blkaddr) { | |
1987 | f2fs_msg(sb, KERN_INFO, | |
1988 | "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", | |
1989 | sit_blkaddr, nat_blkaddr, | |
1990 | segment_count_sit << log_blocks_per_seg); | |
1991 | return true; | |
1992 | } | |
1993 | ||
1994 | if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != | |
1995 | ssa_blkaddr) { | |
1996 | f2fs_msg(sb, KERN_INFO, | |
1997 | "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", | |
1998 | nat_blkaddr, ssa_blkaddr, | |
1999 | segment_count_nat << log_blocks_per_seg); | |
2000 | return true; | |
2001 | } | |
2002 | ||
2003 | if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != | |
2004 | main_blkaddr) { | |
2005 | f2fs_msg(sb, KERN_INFO, | |
2006 | "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", | |
2007 | ssa_blkaddr, main_blkaddr, | |
2008 | segment_count_ssa << log_blocks_per_seg); | |
2009 | return true; | |
2010 | } | |
2011 | ||
fd694733 | 2012 | if (main_end_blkaddr > seg_end_blkaddr) { |
9a59b62f | 2013 | f2fs_msg(sb, KERN_INFO, |
fd694733 | 2014 | "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)", |
9a59b62f | 2015 | main_blkaddr, |
fd694733 JK |
2016 | segment0_blkaddr + |
2017 | (segment_count << log_blocks_per_seg), | |
9a59b62f CY |
2018 | segment_count_main << log_blocks_per_seg); |
2019 | return true; | |
fd694733 JK |
2020 | } else if (main_end_blkaddr < seg_end_blkaddr) { |
2021 | int err = 0; | |
2022 | char *res; | |
2023 | ||
2024 | /* fix in-memory information all the time */ | |
2025 | raw_super->segment_count = cpu_to_le32((main_end_blkaddr - | |
2026 | segment0_blkaddr) >> log_blocks_per_seg); | |
2027 | ||
2028 | if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { | |
df728b0f | 2029 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
fd694733 JK |
2030 | res = "internally"; |
2031 | } else { | |
2032 | err = __f2fs_commit_super(bh, NULL); | |
2033 | res = err ? "failed" : "done"; | |
2034 | } | |
2035 | f2fs_msg(sb, KERN_INFO, | |
2036 | "Fix alignment : %s, start(%u) end(%u) block(%u)", | |
2037 | res, main_blkaddr, | |
2038 | segment0_blkaddr + | |
2039 | (segment_count << log_blocks_per_seg), | |
2040 | segment_count_main << log_blocks_per_seg); | |
2041 | if (err) | |
2042 | return true; | |
9a59b62f | 2043 | } |
9a59b62f CY |
2044 | return false; |
2045 | } | |
2046 | ||
df728b0f | 2047 | static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
fd694733 | 2048 | struct buffer_head *bh) |
aff063e2 | 2049 | { |
fd694733 JK |
2050 | struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
2051 | (bh->b_data + F2FS_SUPER_OFFSET); | |
df728b0f | 2052 | struct super_block *sb = sbi->sb; |
aff063e2 JK |
2053 | unsigned int blocksize; |
2054 | ||
a07ef784 NJ |
2055 | if (F2FS_SUPER_MAGIC != le32_to_cpu(raw_super->magic)) { |
2056 | f2fs_msg(sb, KERN_INFO, | |
2057 | "Magic Mismatch, valid(0x%x) - read(0x%x)", | |
2058 | F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); | |
aff063e2 | 2059 | return 1; |
a07ef784 | 2060 | } |
aff063e2 | 2061 | |
5c9b4692 | 2062 | /* Currently, support only 4KB page cache size */ |
09cbfeaf | 2063 | if (F2FS_BLKSIZE != PAGE_SIZE) { |
5c9b4692 | 2064 | f2fs_msg(sb, KERN_INFO, |
14d7e9de | 2065 | "Invalid page_cache_size (%lu), supports only 4KB\n", |
09cbfeaf | 2066 | PAGE_SIZE); |
5c9b4692 | 2067 | return 1; |
2068 | } | |
2069 | ||
aff063e2 JK |
2070 | /* Currently, support only 4KB block size */ |
2071 | blocksize = 1 << le32_to_cpu(raw_super->log_blocksize); | |
5c9b4692 | 2072 | if (blocksize != F2FS_BLKSIZE) { |
a07ef784 NJ |
2073 | f2fs_msg(sb, KERN_INFO, |
2074 | "Invalid blocksize (%u), supports only 4KB\n", | |
2075 | blocksize); | |
aff063e2 | 2076 | return 1; |
a07ef784 | 2077 | } |
5c9b4692 | 2078 | |
9a59b62f CY |
2079 | /* check log blocks per segment */ |
2080 | if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { | |
2081 | f2fs_msg(sb, KERN_INFO, | |
2082 | "Invalid log blocks per segment (%u)\n", | |
2083 | le32_to_cpu(raw_super->log_blocks_per_seg)); | |
2084 | return 1; | |
2085 | } | |
2086 | ||
55cf9cb6 CY |
2087 | /* Currently, support 512/1024/2048/4096 bytes sector size */ |
2088 | if (le32_to_cpu(raw_super->log_sectorsize) > | |
2089 | F2FS_MAX_LOG_SECTOR_SIZE || | |
2090 | le32_to_cpu(raw_super->log_sectorsize) < | |
2091 | F2FS_MIN_LOG_SECTOR_SIZE) { | |
2092 | f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)", | |
2093 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 2094 | return 1; |
a07ef784 | 2095 | } |
55cf9cb6 CY |
2096 | if (le32_to_cpu(raw_super->log_sectors_per_block) + |
2097 | le32_to_cpu(raw_super->log_sectorsize) != | |
2098 | F2FS_MAX_LOG_SECTOR_SIZE) { | |
2099 | f2fs_msg(sb, KERN_INFO, | |
2100 | "Invalid log sectors per block(%u) log sectorsize(%u)", | |
2101 | le32_to_cpu(raw_super->log_sectors_per_block), | |
2102 | le32_to_cpu(raw_super->log_sectorsize)); | |
aff063e2 | 2103 | return 1; |
a07ef784 | 2104 | } |
9a59b62f CY |
2105 | |
2106 | /* check reserved ino info */ | |
2107 | if (le32_to_cpu(raw_super->node_ino) != 1 || | |
2108 | le32_to_cpu(raw_super->meta_ino) != 2 || | |
2109 | le32_to_cpu(raw_super->root_ino) != 3) { | |
2110 | f2fs_msg(sb, KERN_INFO, | |
2111 | "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", | |
2112 | le32_to_cpu(raw_super->node_ino), | |
2113 | le32_to_cpu(raw_super->meta_ino), | |
2114 | le32_to_cpu(raw_super->root_ino)); | |
2115 | return 1; | |
2116 | } | |
2117 | ||
b9dd4618 JQ |
2118 | if (le32_to_cpu(raw_super->segment_count) > F2FS_MAX_SEGMENT) { |
2119 | f2fs_msg(sb, KERN_INFO, | |
2120 | "Invalid segment count (%u)", | |
2121 | le32_to_cpu(raw_super->segment_count)); | |
2122 | return 1; | |
2123 | } | |
2124 | ||
9a59b62f | 2125 | /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
df728b0f | 2126 | if (sanity_check_area_boundary(sbi, bh)) |
9a59b62f CY |
2127 | return 1; |
2128 | ||
aff063e2 JK |
2129 | return 0; |
2130 | } | |
2131 | ||
984ec63c | 2132 | int sanity_check_ckpt(struct f2fs_sb_info *sbi) |
aff063e2 JK |
2133 | { |
2134 | unsigned int total, fsmeta; | |
577e3495 JK |
2135 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
2136 | struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); | |
2040fce8 | 2137 | unsigned int ovp_segments, reserved_segments; |
15d3042a JQ |
2138 | unsigned int main_segs, blocks_per_seg; |
2139 | int i; | |
aff063e2 JK |
2140 | |
2141 | total = le32_to_cpu(raw_super->segment_count); | |
2142 | fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); | |
2143 | fsmeta += le32_to_cpu(raw_super->segment_count_sit); | |
2144 | fsmeta += le32_to_cpu(raw_super->segment_count_nat); | |
2145 | fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); | |
2146 | fsmeta += le32_to_cpu(raw_super->segment_count_ssa); | |
2147 | ||
6bacf52f | 2148 | if (unlikely(fsmeta >= total)) |
aff063e2 | 2149 | return 1; |
577e3495 | 2150 | |
2040fce8 JK |
2151 | ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
2152 | reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); | |
2153 | ||
2154 | if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || | |
2155 | ovp_segments == 0 || reserved_segments == 0)) { | |
2156 | f2fs_msg(sbi->sb, KERN_ERR, | |
2157 | "Wrong layout: check mkfs.f2fs version"); | |
2158 | return 1; | |
2159 | } | |
2160 | ||
15d3042a JQ |
2161 | main_segs = le32_to_cpu(raw_super->segment_count_main); |
2162 | blocks_per_seg = sbi->blocks_per_seg; | |
2163 | ||
2164 | for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { | |
2165 | if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || | |
2166 | le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) | |
2167 | return 1; | |
2168 | } | |
2169 | for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { | |
2170 | if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || | |
2171 | le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) | |
2172 | return 1; | |
2173 | } | |
2174 | ||
1e968fdf | 2175 | if (unlikely(f2fs_cp_error(sbi))) { |
577e3495 JK |
2176 | f2fs_msg(sbi->sb, KERN_ERR, "A bug case: need to run fsck"); |
2177 | return 1; | |
2178 | } | |
aff063e2 JK |
2179 | return 0; |
2180 | } | |
2181 | ||
2182 | static void init_sb_info(struct f2fs_sb_info *sbi) | |
2183 | { | |
2184 | struct f2fs_super_block *raw_super = sbi->raw_super; | |
e41e6d75 | 2185 | int i, j; |
aff063e2 JK |
2186 | |
2187 | sbi->log_sectors_per_block = | |
2188 | le32_to_cpu(raw_super->log_sectors_per_block); | |
2189 | sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); | |
2190 | sbi->blocksize = 1 << sbi->log_blocksize; | |
2191 | sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); | |
2192 | sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; | |
2193 | sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); | |
2194 | sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); | |
2195 | sbi->total_sections = le32_to_cpu(raw_super->section_count); | |
2196 | sbi->total_node_count = | |
2197 | (le32_to_cpu(raw_super->segment_count_nat) / 2) | |
2198 | * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; | |
2199 | sbi->root_ino_num = le32_to_cpu(raw_super->root_ino); | |
2200 | sbi->node_ino_num = le32_to_cpu(raw_super->node_ino); | |
2201 | sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino); | |
5ec4e49f | 2202 | sbi->cur_victim_sec = NULL_SECNO; |
b1c57c1c | 2203 | sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
aff063e2 | 2204 | |
ab9fa662 | 2205 | sbi->dir_level = DEF_DIR_LEVEL; |
6beceb54 | 2206 | sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
d0239e1b | 2207 | sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
caf0047e | 2208 | clear_sbi_flag(sbi, SBI_NEED_FSCK); |
2658e50d | 2209 | |
35782b23 JK |
2210 | for (i = 0; i < NR_COUNT_TYPE; i++) |
2211 | atomic_set(&sbi->nr_pages[i], 0); | |
2212 | ||
687de7f1 JK |
2213 | atomic_set(&sbi->wb_sync_req, 0); |
2214 | ||
2658e50d JK |
2215 | INIT_LIST_HEAD(&sbi->s_list); |
2216 | mutex_init(&sbi->umount_mutex); | |
e41e6d75 CY |
2217 | for (i = 0; i < NR_PAGE_TYPE - 1; i++) |
2218 | for (j = HOT; j < NR_TEMP_TYPE; j++) | |
2219 | mutex_init(&sbi->wio_mutex[i][j]); | |
aaec2b1d | 2220 | spin_lock_init(&sbi->cp_lock); |
1228b482 CY |
2221 | |
2222 | sbi->dirty_device = 0; | |
2223 | spin_lock_init(&sbi->dev_lock); | |
aff063e2 JK |
2224 | } |
2225 | ||
523be8a6 JK |
2226 | static int init_percpu_info(struct f2fs_sb_info *sbi) |
2227 | { | |
35782b23 | 2228 | int err; |
41382ec4 | 2229 | |
513c5f37 JK |
2230 | err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
2231 | if (err) | |
2232 | return err; | |
2233 | ||
2234 | return percpu_counter_init(&sbi->total_valid_inode_count, 0, | |
41382ec4 | 2235 | GFP_KERNEL); |
523be8a6 JK |
2236 | } |
2237 | ||
178053e2 | 2238 | #ifdef CONFIG_BLK_DEV_ZONED |
3c62be17 | 2239 | static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
178053e2 | 2240 | { |
3c62be17 | 2241 | struct block_device *bdev = FDEV(devi).bdev; |
178053e2 DLM |
2242 | sector_t nr_sectors = bdev->bd_part->nr_sects; |
2243 | sector_t sector = 0; | |
2244 | struct blk_zone *zones; | |
2245 | unsigned int i, nr_zones; | |
2246 | unsigned int n = 0; | |
2247 | int err = -EIO; | |
2248 | ||
2249 | if (!f2fs_sb_mounted_blkzoned(sbi->sb)) | |
2250 | return 0; | |
2251 | ||
3c62be17 | 2252 | if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
f99e8648 | 2253 | SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
3c62be17 | 2254 | return -EINVAL; |
f99e8648 | 2255 | sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
3c62be17 JK |
2256 | if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
2257 | __ilog2_u32(sbi->blocks_per_blkz)) | |
2258 | return -EINVAL; | |
178053e2 | 2259 | sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
3c62be17 JK |
2260 | FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
2261 | sbi->log_blocks_per_blkz; | |
f99e8648 | 2262 | if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
3c62be17 | 2263 | FDEV(devi).nr_blkz++; |
178053e2 | 2264 | |
4e6aad29 CY |
2265 | FDEV(devi).blkz_type = f2fs_kmalloc(sbi, FDEV(devi).nr_blkz, |
2266 | GFP_KERNEL); | |
3c62be17 | 2267 | if (!FDEV(devi).blkz_type) |
178053e2 DLM |
2268 | return -ENOMEM; |
2269 | ||
2270 | #define F2FS_REPORT_NR_ZONES 4096 | |
2271 | ||
4e6aad29 CY |
2272 | zones = f2fs_kzalloc(sbi, sizeof(struct blk_zone) * |
2273 | F2FS_REPORT_NR_ZONES, GFP_KERNEL); | |
178053e2 DLM |
2274 | if (!zones) |
2275 | return -ENOMEM; | |
2276 | ||
2277 | /* Get block zones type */ | |
2278 | while (zones && sector < nr_sectors) { | |
2279 | ||
2280 | nr_zones = F2FS_REPORT_NR_ZONES; | |
2281 | err = blkdev_report_zones(bdev, sector, | |
2282 | zones, &nr_zones, | |
2283 | GFP_KERNEL); | |
2284 | if (err) | |
2285 | break; | |
2286 | if (!nr_zones) { | |
2287 | err = -EIO; | |
2288 | break; | |
2289 | } | |
2290 | ||
2291 | for (i = 0; i < nr_zones; i++) { | |
3c62be17 | 2292 | FDEV(devi).blkz_type[n] = zones[i].type; |
178053e2 DLM |
2293 | sector += zones[i].len; |
2294 | n++; | |
2295 | } | |
2296 | } | |
2297 | ||
2298 | kfree(zones); | |
2299 | ||
2300 | return err; | |
2301 | } | |
2302 | #endif | |
2303 | ||
9076a75f GZ |
2304 | /* |
2305 | * Read f2fs raw super block. | |
2b39e907 SL |
2306 | * Because we have two copies of super block, so read both of them |
2307 | * to get the first valid one. If any one of them is broken, we pass | |
2308 | * them recovery flag back to the caller. | |
9076a75f | 2309 | */ |
df728b0f | 2310 | static int read_raw_super_block(struct f2fs_sb_info *sbi, |
9076a75f | 2311 | struct f2fs_super_block **raw_super, |
e8240f65 | 2312 | int *valid_super_block, int *recovery) |
14d7e9de | 2313 | { |
df728b0f | 2314 | struct super_block *sb = sbi->sb; |
2b39e907 | 2315 | int block; |
e8240f65 | 2316 | struct buffer_head *bh; |
fd694733 | 2317 | struct f2fs_super_block *super; |
da554e48 | 2318 | int err = 0; |
14d7e9de | 2319 | |
b39f0de2 YH |
2320 | super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
2321 | if (!super) | |
2322 | return -ENOMEM; | |
2b39e907 SL |
2323 | |
2324 | for (block = 0; block < 2; block++) { | |
2325 | bh = sb_bread(sb, block); | |
2326 | if (!bh) { | |
2327 | f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock", | |
9076a75f | 2328 | block + 1); |
2b39e907 SL |
2329 | err = -EIO; |
2330 | continue; | |
2331 | } | |
14d7e9de | 2332 | |
2b39e907 | 2333 | /* sanity checking of raw super */ |
df728b0f | 2334 | if (sanity_check_raw_super(sbi, bh)) { |
2b39e907 SL |
2335 | f2fs_msg(sb, KERN_ERR, |
2336 | "Can't find valid F2FS filesystem in %dth superblock", | |
2337 | block + 1); | |
2338 | err = -EINVAL; | |
2339 | brelse(bh); | |
2340 | continue; | |
2341 | } | |
14d7e9de | 2342 | |
2b39e907 | 2343 | if (!*raw_super) { |
fd694733 JK |
2344 | memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
2345 | sizeof(*super)); | |
2b39e907 SL |
2346 | *valid_super_block = block; |
2347 | *raw_super = super; | |
2348 | } | |
2349 | brelse(bh); | |
da554e48 | 2350 | } |
2351 | ||
2b39e907 SL |
2352 | /* Fail to read any one of the superblocks*/ |
2353 | if (err < 0) | |
2354 | *recovery = 1; | |
da554e48 | 2355 | |
da554e48 | 2356 | /* No valid superblock */ |
2b39e907 | 2357 | if (!*raw_super) |
b39f0de2 | 2358 | kfree(super); |
2b39e907 SL |
2359 | else |
2360 | err = 0; | |
da554e48 | 2361 | |
2b39e907 | 2362 | return err; |
14d7e9de | 2363 | } |
2364 | ||
fd694733 | 2365 | int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
26d815ad | 2366 | { |
5d909cdb | 2367 | struct buffer_head *bh; |
26d815ad JK |
2368 | int err; |
2369 | ||
df728b0f JK |
2370 | if ((recover && f2fs_readonly(sbi->sb)) || |
2371 | bdev_read_only(sbi->sb->s_bdev)) { | |
2372 | set_sbi_flag(sbi, SBI_NEED_SB_WRITE); | |
f2353d7b | 2373 | return -EROFS; |
df728b0f | 2374 | } |
f2353d7b | 2375 | |
fd694733 | 2376 | /* write back-up superblock first */ |
0964fc1a | 2377 | bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1); |
5d909cdb JK |
2378 | if (!bh) |
2379 | return -EIO; | |
fd694733 | 2380 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
5d909cdb | 2381 | brelse(bh); |
c5bda1c8 CY |
2382 | |
2383 | /* if we are in recovery path, skip writing valid superblock */ | |
2384 | if (recover || err) | |
5d909cdb | 2385 | return err; |
26d815ad JK |
2386 | |
2387 | /* write current valid superblock */ | |
0964fc1a | 2388 | bh = sb_bread(sbi->sb, sbi->valid_super_block); |
fd694733 JK |
2389 | if (!bh) |
2390 | return -EIO; | |
2391 | err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); | |
2392 | brelse(bh); | |
2393 | return err; | |
26d815ad JK |
2394 | } |
2395 | ||
3c62be17 JK |
2396 | static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
2397 | { | |
2398 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
7bb3a371 | 2399 | unsigned int max_devices = MAX_DEVICES; |
3c62be17 JK |
2400 | int i; |
2401 | ||
7bb3a371 MS |
2402 | /* Initialize single device information */ |
2403 | if (!RDEV(0).path[0]) { | |
2404 | if (!bdev_is_zoned(sbi->sb->s_bdev)) | |
3c62be17 | 2405 | return 0; |
7bb3a371 MS |
2406 | max_devices = 1; |
2407 | } | |
3c62be17 | 2408 | |
7bb3a371 MS |
2409 | /* |
2410 | * Initialize multiple devices information, or single | |
2411 | * zoned block device information. | |
2412 | */ | |
4e6aad29 CY |
2413 | sbi->devs = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_info) * |
2414 | max_devices, GFP_KERNEL); | |
7bb3a371 MS |
2415 | if (!sbi->devs) |
2416 | return -ENOMEM; | |
3c62be17 | 2417 | |
7bb3a371 | 2418 | for (i = 0; i < max_devices; i++) { |
3c62be17 | 2419 | |
7bb3a371 MS |
2420 | if (i > 0 && !RDEV(i).path[0]) |
2421 | break; | |
2422 | ||
2423 | if (max_devices == 1) { | |
2424 | /* Single zoned block device mount */ | |
2425 | FDEV(0).bdev = | |
2426 | blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, | |
3c62be17 | 2427 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 MS |
2428 | } else { |
2429 | /* Multi-device mount */ | |
2430 | memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); | |
2431 | FDEV(i).total_segments = | |
2432 | le32_to_cpu(RDEV(i).total_segments); | |
2433 | if (i == 0) { | |
2434 | FDEV(i).start_blk = 0; | |
2435 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2436 | (FDEV(i).total_segments << | |
2437 | sbi->log_blocks_per_seg) - 1 + | |
2438 | le32_to_cpu(raw_super->segment0_blkaddr); | |
2439 | } else { | |
2440 | FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; | |
2441 | FDEV(i).end_blk = FDEV(i).start_blk + | |
2442 | (FDEV(i).total_segments << | |
2443 | sbi->log_blocks_per_seg) - 1; | |
2444 | } | |
2445 | FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, | |
3c62be17 | 2446 | sbi->sb->s_mode, sbi->sb->s_type); |
7bb3a371 | 2447 | } |
3c62be17 JK |
2448 | if (IS_ERR(FDEV(i).bdev)) |
2449 | return PTR_ERR(FDEV(i).bdev); | |
2450 | ||
2451 | /* to release errored devices */ | |
2452 | sbi->s_ndevs = i + 1; | |
2453 | ||
2454 | #ifdef CONFIG_BLK_DEV_ZONED | |
2455 | if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && | |
2456 | !f2fs_sb_mounted_blkzoned(sbi->sb)) { | |
2457 | f2fs_msg(sbi->sb, KERN_ERR, | |
2458 | "Zoned block device feature not enabled\n"); | |
2459 | return -EINVAL; | |
2460 | } | |
2461 | if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { | |
2462 | if (init_blkz_info(sbi, i)) { | |
2463 | f2fs_msg(sbi->sb, KERN_ERR, | |
2464 | "Failed to initialize F2FS blkzone information"); | |
2465 | return -EINVAL; | |
2466 | } | |
7bb3a371 MS |
2467 | if (max_devices == 1) |
2468 | break; | |
3c62be17 JK |
2469 | f2fs_msg(sbi->sb, KERN_INFO, |
2470 | "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", | |
2471 | i, FDEV(i).path, | |
2472 | FDEV(i).total_segments, | |
2473 | FDEV(i).start_blk, FDEV(i).end_blk, | |
2474 | bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? | |
2475 | "Host-aware" : "Host-managed"); | |
2476 | continue; | |
2477 | } | |
2478 | #endif | |
2479 | f2fs_msg(sbi->sb, KERN_INFO, | |
2480 | "Mount Device [%2d]: %20s, %8u, %8x - %8x", | |
2481 | i, FDEV(i).path, | |
2482 | FDEV(i).total_segments, | |
2483 | FDEV(i).start_blk, FDEV(i).end_blk); | |
2484 | } | |
0a595eba JK |
2485 | f2fs_msg(sbi->sb, KERN_INFO, |
2486 | "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); | |
3c62be17 JK |
2487 | return 0; |
2488 | } | |
2489 | ||
aff063e2 JK |
2490 | static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
2491 | { | |
2492 | struct f2fs_sb_info *sbi; | |
da554e48 | 2493 | struct f2fs_super_block *raw_super; |
aff063e2 | 2494 | struct inode *root; |
99e3e858 | 2495 | int err; |
2adc3505 | 2496 | bool retry = true, need_fsck = false; |
dabc4a5c | 2497 | char *options = NULL; |
e8240f65 | 2498 | int recovery, i, valid_super_block; |
8f1dbbbb | 2499 | struct curseg_info *seg_i; |
aff063e2 | 2500 | |
ed2e621a | 2501 | try_onemore: |
da554e48 | 2502 | err = -EINVAL; |
2503 | raw_super = NULL; | |
e8240f65 | 2504 | valid_super_block = -1; |
da554e48 | 2505 | recovery = 0; |
2506 | ||
aff063e2 JK |
2507 | /* allocate memory for f2fs-specific super block info */ |
2508 | sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); | |
2509 | if (!sbi) | |
2510 | return -ENOMEM; | |
2511 | ||
df728b0f JK |
2512 | sbi->sb = sb; |
2513 | ||
43b6573b KM |
2514 | /* Load the checksum driver */ |
2515 | sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); | |
2516 | if (IS_ERR(sbi->s_chksum_driver)) { | |
2517 | f2fs_msg(sb, KERN_ERR, "Cannot load crc32 driver."); | |
2518 | err = PTR_ERR(sbi->s_chksum_driver); | |
2519 | sbi->s_chksum_driver = NULL; | |
2520 | goto free_sbi; | |
2521 | } | |
2522 | ||
ff9234ad | 2523 | /* set a block size */ |
6bacf52f | 2524 | if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
a07ef784 | 2525 | f2fs_msg(sb, KERN_ERR, "unable to set blocksize"); |
aff063e2 | 2526 | goto free_sbi; |
a07ef784 | 2527 | } |
aff063e2 | 2528 | |
df728b0f | 2529 | err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
e8240f65 | 2530 | &recovery); |
9076a75f GZ |
2531 | if (err) |
2532 | goto free_sbi; | |
2533 | ||
5fb08372 | 2534 | sb->s_fs_info = sbi; |
52763a4b JK |
2535 | sbi->raw_super = raw_super; |
2536 | ||
7c2e5963 JK |
2537 | sbi->s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID); |
2538 | sbi->s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID); | |
2539 | ||
704956ec CY |
2540 | /* precompute checksum seed for metadata */ |
2541 | if (f2fs_sb_has_inode_chksum(sb)) | |
2542 | sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, | |
2543 | sizeof(raw_super->uuid)); | |
2544 | ||
d1b959c8 DLM |
2545 | /* |
2546 | * The BLKZONED feature indicates that the drive was formatted with | |
2547 | * zone alignment optimization. This is optional for host-aware | |
2548 | * devices, but mandatory for host-managed zoned block devices. | |
2549 | */ | |
2550 | #ifndef CONFIG_BLK_DEV_ZONED | |
2551 | if (f2fs_sb_mounted_blkzoned(sb)) { | |
2552 | f2fs_msg(sb, KERN_ERR, | |
2553 | "Zoned block device support is not enabled\n"); | |
1727f317 | 2554 | err = -EOPNOTSUPP; |
d1b959c8 DLM |
2555 | goto free_sb_buf; |
2556 | } | |
d1b959c8 | 2557 | #endif |
498c5e9f | 2558 | default_options(sbi); |
aff063e2 | 2559 | /* parse mount options */ |
dabc4a5c JK |
2560 | options = kstrdup((const char *)data, GFP_KERNEL); |
2561 | if (data && !options) { | |
2562 | err = -ENOMEM; | |
aff063e2 | 2563 | goto free_sb_buf; |
dabc4a5c JK |
2564 | } |
2565 | ||
2566 | err = parse_options(sb, options); | |
2567 | if (err) | |
2568 | goto free_options; | |
aff063e2 | 2569 | |
e0afc4d6 CY |
2570 | sbi->max_file_blocks = max_file_blocks(); |
2571 | sb->s_maxbytes = sbi->max_file_blocks << | |
2572 | le32_to_cpu(raw_super->log_blocksize); | |
aff063e2 JK |
2573 | sb->s_max_links = F2FS_LINK_MAX; |
2574 | get_random_bytes(&sbi->s_next_generation, sizeof(u32)); | |
2575 | ||
0abd675e CY |
2576 | #ifdef CONFIG_QUOTA |
2577 | sb->dq_op = &f2fs_quota_operations; | |
ea676733 JK |
2578 | if (f2fs_sb_has_quota_ino(sb)) |
2579 | sb->s_qcop = &dquot_quotactl_sysfile_ops; | |
2580 | else | |
2581 | sb->s_qcop = &f2fs_quotactl_ops; | |
5c57132e | 2582 | sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
292c196a CY |
2583 | |
2584 | if (f2fs_sb_has_quota_ino(sbi->sb)) { | |
2585 | for (i = 0; i < MAXQUOTAS; i++) { | |
2586 | if (f2fs_qf_ino(sbi->sb, i)) | |
2587 | sbi->nquota_files++; | |
2588 | } | |
2589 | } | |
0abd675e CY |
2590 | #endif |
2591 | ||
aff063e2 | 2592 | sb->s_op = &f2fs_sops; |
ffcc4182 | 2593 | #ifdef CONFIG_F2FS_FS_ENCRYPTION |
0b81d077 | 2594 | sb->s_cop = &f2fs_cryptops; |
ffcc4182 | 2595 | #endif |
aff063e2 JK |
2596 | sb->s_xattr = f2fs_xattr_handlers; |
2597 | sb->s_export_op = &f2fs_export_ops; | |
2598 | sb->s_magic = F2FS_SUPER_MAGIC; | |
aff063e2 | 2599 | sb->s_time_gran = 1; |
1751e8a6 LT |
2600 | sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
2601 | (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); | |
85787090 | 2602 | memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
578c6478 | 2603 | sb->s_iflags |= SB_I_CGROUPWB; |
aff063e2 JK |
2604 | |
2605 | /* init f2fs-specific super block info */ | |
e8240f65 | 2606 | sbi->valid_super_block = valid_super_block; |
aff063e2 | 2607 | mutex_init(&sbi->gc_mutex); |
aff063e2 | 2608 | mutex_init(&sbi->cp_mutex); |
b3582c68 | 2609 | init_rwsem(&sbi->node_write); |
59c9081b | 2610 | init_rwsem(&sbi->node_change); |
315df839 JK |
2611 | |
2612 | /* disallow all the data/node/meta page writes */ | |
2613 | set_sbi_flag(sbi, SBI_POR_DOING); | |
aff063e2 | 2614 | spin_lock_init(&sbi->stat_lock); |
971767ca | 2615 | |
b0af6d49 CY |
2616 | /* init iostat info */ |
2617 | spin_lock_init(&sbi->iostat_lock); | |
2618 | sbi->iostat_enable = false; | |
2619 | ||
458e6197 | 2620 | for (i = 0; i < NR_PAGE_TYPE; i++) { |
a912b54d JK |
2621 | int n = (i == META) ? 1: NR_TEMP_TYPE; |
2622 | int j; | |
2623 | ||
4e6aad29 CY |
2624 | sbi->write_io[i] = f2fs_kmalloc(sbi, |
2625 | n * sizeof(struct f2fs_bio_info), | |
2626 | GFP_KERNEL); | |
b63def91 CJ |
2627 | if (!sbi->write_io[i]) { |
2628 | err = -ENOMEM; | |
a912b54d | 2629 | goto free_options; |
b63def91 | 2630 | } |
a912b54d JK |
2631 | |
2632 | for (j = HOT; j < n; j++) { | |
2633 | init_rwsem(&sbi->write_io[i][j].io_rwsem); | |
2634 | sbi->write_io[i][j].sbi = sbi; | |
2635 | sbi->write_io[i][j].bio = NULL; | |
fb830fc5 CY |
2636 | spin_lock_init(&sbi->write_io[i][j].io_lock); |
2637 | INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); | |
a912b54d | 2638 | } |
458e6197 | 2639 | } |
971767ca | 2640 | |
b873b798 | 2641 | init_rwsem(&sbi->cp_rwsem); |
fb51b5ef | 2642 | init_waitqueue_head(&sbi->cp_wait); |
aff063e2 JK |
2643 | init_sb_info(sbi); |
2644 | ||
523be8a6 JK |
2645 | err = init_percpu_info(sbi); |
2646 | if (err) | |
d7997e63 | 2647 | goto free_bio_info; |
523be8a6 | 2648 | |
0a595eba JK |
2649 | if (F2FS_IO_SIZE(sbi) > 1) { |
2650 | sbi->write_io_dummy = | |
a3ebfe4f | 2651 | mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
1727f317 CY |
2652 | if (!sbi->write_io_dummy) { |
2653 | err = -ENOMEM; | |
d7997e63 | 2654 | goto free_percpu; |
1727f317 | 2655 | } |
0a595eba JK |
2656 | } |
2657 | ||
aff063e2 JK |
2658 | /* get an inode for meta space */ |
2659 | sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); | |
2660 | if (IS_ERR(sbi->meta_inode)) { | |
a07ef784 | 2661 | f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); |
aff063e2 | 2662 | err = PTR_ERR(sbi->meta_inode); |
0a595eba | 2663 | goto free_io_dummy; |
aff063e2 JK |
2664 | } |
2665 | ||
2666 | err = get_valid_checkpoint(sbi); | |
a07ef784 NJ |
2667 | if (err) { |
2668 | f2fs_msg(sb, KERN_ERR, "Failed to get valid F2FS checkpoint"); | |
aff063e2 | 2669 | goto free_meta_inode; |
a07ef784 | 2670 | } |
aff063e2 | 2671 | |
3c62be17 JK |
2672 | /* Initialize device list */ |
2673 | err = f2fs_scan_devices(sbi); | |
2674 | if (err) { | |
2675 | f2fs_msg(sb, KERN_ERR, "Failed to find devices"); | |
2676 | goto free_devices; | |
2677 | } | |
2678 | ||
aff063e2 JK |
2679 | sbi->total_valid_node_count = |
2680 | le32_to_cpu(sbi->ckpt->valid_node_count); | |
513c5f37 JK |
2681 | percpu_counter_set(&sbi->total_valid_inode_count, |
2682 | le32_to_cpu(sbi->ckpt->valid_inode_count)); | |
aff063e2 JK |
2683 | sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
2684 | sbi->total_valid_block_count = | |
2685 | le64_to_cpu(sbi->ckpt->valid_block_count); | |
2686 | sbi->last_valid_block_count = sbi->total_valid_block_count; | |
daeb433e | 2687 | sbi->reserved_blocks = 0; |
80d42145 | 2688 | sbi->current_reserved_blocks = 0; |
7e65be49 | 2689 | limit_reserve_root(sbi); |
41382ec4 | 2690 | |
c227f912 CY |
2691 | for (i = 0; i < NR_INODE_TYPE; i++) { |
2692 | INIT_LIST_HEAD(&sbi->inode_list[i]); | |
2693 | spin_lock_init(&sbi->inode_lock[i]); | |
2694 | } | |
aff063e2 | 2695 | |
1dcc336b CY |
2696 | init_extent_cache_info(sbi); |
2697 | ||
6451e041 | 2698 | init_ino_entry_info(sbi); |
aff063e2 JK |
2699 | |
2700 | /* setup f2fs internal modules */ | |
2701 | err = build_segment_manager(sbi); | |
a07ef784 NJ |
2702 | if (err) { |
2703 | f2fs_msg(sb, KERN_ERR, | |
2704 | "Failed to initialize F2FS segment manager"); | |
aff063e2 | 2705 | goto free_sm; |
a07ef784 | 2706 | } |
aff063e2 | 2707 | err = build_node_manager(sbi); |
a07ef784 NJ |
2708 | if (err) { |
2709 | f2fs_msg(sb, KERN_ERR, | |
2710 | "Failed to initialize F2FS node manager"); | |
aff063e2 | 2711 | goto free_nm; |
a07ef784 | 2712 | } |
aff063e2 | 2713 | |
8f1dbbbb SL |
2714 | /* For write statistics */ |
2715 | if (sb->s_bdev->bd_part) | |
2716 | sbi->sectors_written_start = | |
2717 | (u64)part_stat_read(sb->s_bdev->bd_part, sectors[1]); | |
2718 | ||
2719 | /* Read accumulated write IO statistics if exists */ | |
2720 | seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); | |
2721 | if (__exist_node_summaries(sbi)) | |
2722 | sbi->kbytes_written = | |
b2dde6fc | 2723 | le64_to_cpu(seg_i->journal->info.kbytes_written); |
8f1dbbbb | 2724 | |
aff063e2 JK |
2725 | build_gc_manager(sbi); |
2726 | ||
2727 | /* get an inode for node space */ | |
2728 | sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); | |
2729 | if (IS_ERR(sbi->node_inode)) { | |
a07ef784 | 2730 | f2fs_msg(sb, KERN_ERR, "Failed to read node inode"); |
aff063e2 JK |
2731 | err = PTR_ERR(sbi->node_inode); |
2732 | goto free_nm; | |
2733 | } | |
2734 | ||
aa51d08a JK |
2735 | err = f2fs_build_stats(sbi); |
2736 | if (err) | |
bae01eda | 2737 | goto free_node_inode; |
aa51d08a | 2738 | |
aff063e2 JK |
2739 | /* read root inode and dentry */ |
2740 | root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); | |
2741 | if (IS_ERR(root)) { | |
a07ef784 | 2742 | f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); |
aff063e2 | 2743 | err = PTR_ERR(root); |
bae01eda | 2744 | goto free_stats; |
aff063e2 | 2745 | } |
8f99a946 | 2746 | if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { |
9d847950 | 2747 | iput(root); |
8f99a946 | 2748 | err = -EINVAL; |
9d847950 | 2749 | goto free_node_inode; |
8f99a946 | 2750 | } |
aff063e2 JK |
2751 | |
2752 | sb->s_root = d_make_root(root); /* allocate root dentry */ | |
2753 | if (!sb->s_root) { | |
2754 | err = -ENOMEM; | |
2755 | goto free_root_inode; | |
2756 | } | |
2757 | ||
dc6b2055 | 2758 | err = f2fs_register_sysfs(sbi); |
b59d0bae | 2759 | if (err) |
a398101a | 2760 | goto free_root_inode; |
b59d0bae | 2761 | |
ea676733 JK |
2762 | #ifdef CONFIG_QUOTA |
2763 | /* | |
2764 | * Turn on quotas which were not enabled for read-only mounts if | |
2765 | * filesystem has quota feature, so that they are updated correctly. | |
2766 | */ | |
2767 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) { | |
2768 | err = f2fs_enable_quotas(sb); | |
2769 | if (err) { | |
2770 | f2fs_msg(sb, KERN_ERR, | |
2771 | "Cannot turn on quotas: error %d", err); | |
2772 | goto free_sysfs; | |
2773 | } | |
2774 | } | |
2775 | #endif | |
4b2414d0 CY |
2776 | /* if there are nt orphan nodes free them */ |
2777 | err = recover_orphan_inodes(sbi); | |
2778 | if (err) | |
ea676733 | 2779 | goto free_meta; |
4b2414d0 | 2780 | |
6437d1b0 JK |
2781 | /* recover fsynced data */ |
2782 | if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { | |
081d78c2 JK |
2783 | /* |
2784 | * mount should be failed, when device has readonly mode, and | |
2785 | * previous checkpoint was not done by clean system shutdown. | |
2786 | */ | |
2787 | if (bdev_read_only(sb->s_bdev) && | |
aaec2b1d | 2788 | !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
081d78c2 | 2789 | err = -EROFS; |
4b2414d0 | 2790 | goto free_meta; |
081d78c2 | 2791 | } |
2adc3505 CY |
2792 | |
2793 | if (need_fsck) | |
2794 | set_sbi_flag(sbi, SBI_NEED_FSCK); | |
2795 | ||
a468f0ef JK |
2796 | if (!retry) |
2797 | goto skip_recovery; | |
2798 | ||
6781eabb JK |
2799 | err = recover_fsync_data(sbi, false); |
2800 | if (err < 0) { | |
2adc3505 | 2801 | need_fsck = true; |
6437d1b0 | 2802 | f2fs_msg(sb, KERN_ERR, |
99e3e858 | 2803 | "Cannot recover all fsync data errno=%d", err); |
4b2414d0 | 2804 | goto free_meta; |
ed2e621a | 2805 | } |
6781eabb JK |
2806 | } else { |
2807 | err = recover_fsync_data(sbi, true); | |
2808 | ||
2809 | if (!f2fs_readonly(sb) && err > 0) { | |
2810 | err = -EINVAL; | |
2811 | f2fs_msg(sb, KERN_ERR, | |
2812 | "Need to recover fsync data"); | |
ea676733 | 2813 | goto free_meta; |
6781eabb | 2814 | } |
6437d1b0 | 2815 | } |
a468f0ef | 2816 | skip_recovery: |
315df839 JK |
2817 | /* recover_fsync_data() cleared this already */ |
2818 | clear_sbi_flag(sbi, SBI_POR_DOING); | |
b59d0bae | 2819 | |
6437d1b0 JK |
2820 | /* |
2821 | * If filesystem is not mounted as read-only then | |
2822 | * do start the gc_thread. | |
2823 | */ | |
6c029932 | 2824 | if (test_opt(sbi, BG_GC) && !f2fs_readonly(sb)) { |
6437d1b0 JK |
2825 | /* After POR, we can run background GC thread.*/ |
2826 | err = start_gc_thread(sbi); | |
2827 | if (err) | |
4b2414d0 | 2828 | goto free_meta; |
6437d1b0 | 2829 | } |
dabc4a5c | 2830 | kfree(options); |
da554e48 | 2831 | |
2832 | /* recover broken superblock */ | |
f2353d7b | 2833 | if (recovery) { |
41214b3c CY |
2834 | err = f2fs_commit_super(sbi, true); |
2835 | f2fs_msg(sb, KERN_INFO, | |
99e3e858 | 2836 | "Try to recover %dth superblock, ret: %d", |
41214b3c | 2837 | sbi->valid_super_block ? 1 : 2, err); |
da554e48 | 2838 | } |
2839 | ||
bae01eda CY |
2840 | f2fs_join_shrinker(sbi); |
2841 | ||
1200abb2 JK |
2842 | f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", |
2843 | cur_cp_version(F2FS_CKPT(sbi))); | |
6beceb54 | 2844 | f2fs_update_time(sbi, CP_TIME); |
d0239e1b | 2845 | f2fs_update_time(sbi, REQ_TIME); |
aff063e2 | 2846 | return 0; |
6437d1b0 | 2847 | |
4b2414d0 | 2848 | free_meta: |
ea676733 JK |
2849 | #ifdef CONFIG_QUOTA |
2850 | if (f2fs_sb_has_quota_ino(sb) && !sb_rdonly(sb)) | |
2851 | f2fs_quota_off_umount(sbi->sb); | |
2852 | #endif | |
0f18b462 | 2853 | f2fs_sync_inode_meta(sbi); |
4b2414d0 CY |
2854 | /* |
2855 | * Some dirty meta pages can be produced by recover_orphan_inodes() | |
2856 | * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() | |
2857 | * followed by write_checkpoint() through f2fs_write_node_pages(), which | |
2858 | * falls into an infinite loop in sync_meta_pages(). | |
2859 | */ | |
2860 | truncate_inode_pages_final(META_MAPPING(sbi)); | |
ea676733 | 2861 | #ifdef CONFIG_QUOTA |
4b2414d0 | 2862 | free_sysfs: |
ea676733 | 2863 | #endif |
dc6b2055 | 2864 | f2fs_unregister_sysfs(sbi); |
aff063e2 JK |
2865 | free_root_inode: |
2866 | dput(sb->s_root); | |
2867 | sb->s_root = NULL; | |
bae01eda CY |
2868 | free_stats: |
2869 | f2fs_destroy_stats(sbi); | |
aff063e2 | 2870 | free_node_inode: |
d41065e2 | 2871 | release_ino_entry(sbi, true); |
bae01eda | 2872 | truncate_inode_pages_final(NODE_MAPPING(sbi)); |
aff063e2 JK |
2873 | iput(sbi->node_inode); |
2874 | free_nm: | |
2875 | destroy_node_manager(sbi); | |
2876 | free_sm: | |
2877 | destroy_segment_manager(sbi); | |
3c62be17 JK |
2878 | free_devices: |
2879 | destroy_device_list(sbi); | |
aff063e2 JK |
2880 | kfree(sbi->ckpt); |
2881 | free_meta_inode: | |
2882 | make_bad_inode(sbi->meta_inode); | |
2883 | iput(sbi->meta_inode); | |
0a595eba JK |
2884 | free_io_dummy: |
2885 | mempool_destroy(sbi->write_io_dummy); | |
d7997e63 CY |
2886 | free_percpu: |
2887 | destroy_percpu_info(sbi); | |
2888 | free_bio_info: | |
a912b54d JK |
2889 | for (i = 0; i < NR_PAGE_TYPE; i++) |
2890 | kfree(sbi->write_io[i]); | |
d7997e63 | 2891 | free_options: |
4b2414d0 CY |
2892 | #ifdef CONFIG_QUOTA |
2893 | for (i = 0; i < MAXQUOTAS; i++) | |
2894 | kfree(sbi->s_qf_names[i]); | |
2895 | #endif | |
dabc4a5c | 2896 | kfree(options); |
aff063e2 | 2897 | free_sb_buf: |
b39f0de2 | 2898 | kfree(raw_super); |
aff063e2 | 2899 | free_sbi: |
43b6573b KM |
2900 | if (sbi->s_chksum_driver) |
2901 | crypto_free_shash(sbi->s_chksum_driver); | |
aff063e2 | 2902 | kfree(sbi); |
ed2e621a JK |
2903 | |
2904 | /* give only one another chance */ | |
2905 | if (retry) { | |
9df47ba7 | 2906 | retry = false; |
ed2e621a JK |
2907 | shrink_dcache_sb(sb); |
2908 | goto try_onemore; | |
2909 | } | |
aff063e2 JK |
2910 | return err; |
2911 | } | |
2912 | ||
2913 | static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, | |
2914 | const char *dev_name, void *data) | |
2915 | { | |
2916 | return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); | |
2917 | } | |
2918 | ||
30a5537f JK |
2919 | static void kill_f2fs_super(struct super_block *sb) |
2920 | { | |
cce13252 | 2921 | if (sb->s_root) { |
caf0047e | 2922 | set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); |
cce13252 CY |
2923 | stop_gc_thread(F2FS_SB(sb)); |
2924 | stop_discard_thread(F2FS_SB(sb)); | |
2925 | } | |
30a5537f JK |
2926 | kill_block_super(sb); |
2927 | } | |
2928 | ||
aff063e2 JK |
2929 | static struct file_system_type f2fs_fs_type = { |
2930 | .owner = THIS_MODULE, | |
2931 | .name = "f2fs", | |
2932 | .mount = f2fs_mount, | |
30a5537f | 2933 | .kill_sb = kill_f2fs_super, |
aff063e2 JK |
2934 | .fs_flags = FS_REQUIRES_DEV, |
2935 | }; | |
7f78e035 | 2936 | MODULE_ALIAS_FS("f2fs"); |
aff063e2 | 2937 | |
6e6093a8 | 2938 | static int __init init_inodecache(void) |
aff063e2 | 2939 | { |
5d097056 VD |
2940 | f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
2941 | sizeof(struct f2fs_inode_info), 0, | |
2942 | SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); | |
6bacf52f | 2943 | if (!f2fs_inode_cachep) |
aff063e2 JK |
2944 | return -ENOMEM; |
2945 | return 0; | |
2946 | } | |
2947 | ||
2948 | static void destroy_inodecache(void) | |
2949 | { | |
2950 | /* | |
2951 | * Make sure all delayed rcu free inodes are flushed before we | |
2952 | * destroy cache. | |
2953 | */ | |
2954 | rcu_barrier(); | |
2955 | kmem_cache_destroy(f2fs_inode_cachep); | |
2956 | } | |
2957 | ||
2958 | static int __init init_f2fs_fs(void) | |
2959 | { | |
2960 | int err; | |
2961 | ||
c0508650 JK |
2962 | f2fs_build_trace_ios(); |
2963 | ||
aff063e2 JK |
2964 | err = init_inodecache(); |
2965 | if (err) | |
2966 | goto fail; | |
2967 | err = create_node_manager_caches(); | |
2968 | if (err) | |
9890ff3f | 2969 | goto free_inodecache; |
7fd9e544 | 2970 | err = create_segment_manager_caches(); |
aff063e2 | 2971 | if (err) |
9890ff3f | 2972 | goto free_node_manager_caches; |
aff063e2 JK |
2973 | err = create_checkpoint_caches(); |
2974 | if (err) | |
06292073 | 2975 | goto free_segment_manager_caches; |
1dcc336b CY |
2976 | err = create_extent_cache(); |
2977 | if (err) | |
2978 | goto free_checkpoint_caches; | |
dc6b2055 | 2979 | err = f2fs_init_sysfs(); |
a398101a | 2980 | if (err) |
1dcc336b | 2981 | goto free_extent_cache; |
2658e50d | 2982 | err = register_shrinker(&f2fs_shrinker_info); |
cfc4d971 | 2983 | if (err) |
a398101a | 2984 | goto free_sysfs; |
2658e50d JK |
2985 | err = register_filesystem(&f2fs_fs_type); |
2986 | if (err) | |
2987 | goto free_shrinker; | |
787c7b8c CY |
2988 | err = f2fs_create_root_stats(); |
2989 | if (err) | |
2990 | goto free_filesystem; | |
9890ff3f ZH |
2991 | return 0; |
2992 | ||
787c7b8c CY |
2993 | free_filesystem: |
2994 | unregister_filesystem(&f2fs_fs_type); | |
2658e50d JK |
2995 | free_shrinker: |
2996 | unregister_shrinker(&f2fs_shrinker_info); | |
a398101a | 2997 | free_sysfs: |
dc6b2055 | 2998 | f2fs_exit_sysfs(); |
1dcc336b CY |
2999 | free_extent_cache: |
3000 | destroy_extent_cache(); | |
9890ff3f ZH |
3001 | free_checkpoint_caches: |
3002 | destroy_checkpoint_caches(); | |
7fd9e544 JK |
3003 | free_segment_manager_caches: |
3004 | destroy_segment_manager_caches(); | |
9890ff3f ZH |
3005 | free_node_manager_caches: |
3006 | destroy_node_manager_caches(); | |
3007 | free_inodecache: | |
3008 | destroy_inodecache(); | |
aff063e2 JK |
3009 | fail: |
3010 | return err; | |
3011 | } | |
3012 | ||
3013 | static void __exit exit_f2fs_fs(void) | |
3014 | { | |
4589d25d | 3015 | f2fs_destroy_root_stats(); |
aff063e2 | 3016 | unregister_filesystem(&f2fs_fs_type); |
b8bef79d | 3017 | unregister_shrinker(&f2fs_shrinker_info); |
dc6b2055 | 3018 | f2fs_exit_sysfs(); |
fdf6c8be | 3019 | destroy_extent_cache(); |
aff063e2 | 3020 | destroy_checkpoint_caches(); |
5dcd8a71 | 3021 | destroy_segment_manager_caches(); |
aff063e2 JK |
3022 | destroy_node_manager_caches(); |
3023 | destroy_inodecache(); | |
351f4fba | 3024 | f2fs_destroy_trace_ios(); |
aff063e2 JK |
3025 | } |
3026 | ||
3027 | module_init(init_f2fs_fs) | |
3028 | module_exit(exit_f2fs_fs) | |
3029 | ||
3030 | MODULE_AUTHOR("Samsung Electronics's Praesto Team"); | |
3031 | MODULE_DESCRIPTION("Flash Friendly File System"); | |
3032 | MODULE_LICENSE("GPL"); | |
b4b9d34c | 3033 |