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Merge tag 'pinctrl-v6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
[linux-block.git] / fs / f2fs / super.c
CommitLineData
7c1a000d 1// SPDX-License-Identifier: GPL-2.0
0a8165d7 2/*
aff063e2
JK		 3 * fs/f2fs/super.c
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
aff063e2
JK		 7 */
8#include <linux/module.h>
9#include <linux/init.h>
10#include <linux/fs.h>
c5bca38d 11#include <linux/fs_context.h>
4034247a 12#include <linux/sched/mm.h>
aff063e2 13#include <linux/statfs.h>
aff063e2 14#include <linux/buffer_head.h>
aff063e2
JK		 15#include <linux/kthread.h>
16#include <linux/parser.h>
17#include <linux/mount.h>
18#include <linux/seq_file.h>
5e176d54 19#include <linux/proc_fs.h>
aff063e2
JK		 20#include <linux/random.h>
21#include <linux/exportfs.h>
d3ee456d 22#include <linux/blkdev.h>
0abd675e 23#include <linux/quotaops.h>
aff063e2 24#include <linux/f2fs_fs.h>
b59d0bae 25#include <linux/sysfs.h>
4b2414d0 26#include <linux/quota.h>
5aba5430 27#include <linux/unicode.h>
c6a564ff 28#include <linux/part_stat.h>
3fde13f8
CY		 29#include <linux/zstd.h>
30#include <linux/lz4.h>
aff063e2
JK		 31
32#include "f2fs.h"
33#include "node.h"
5ec4e49f 34#include "segment.h"
aff063e2 35#include "xattr.h"
b59d0bae 36#include "gc.h"
52118743 37#include "iostat.h"
aff063e2 38
a2a4a7e4
NJ		 39#define CREATE_TRACE_POINTS
40#include <trace/events/f2fs.h>
41
aff063e2
JK		 42static struct kmem_cache *f2fs_inode_cachep;
43
73faec4d 44#ifdef CONFIG_F2FS_FAULT_INJECTION
2c63fead 45
19880e6e 46const char *f2fs_fault_name[FAULT_MAX] = {
c7115e09
CY		 47 [FAULT_KMALLOC] = "kmalloc",
48 [FAULT_KVMALLOC] = "kvmalloc",
49 [FAULT_PAGE_ALLOC] = "page alloc",
50 [FAULT_PAGE_GET] = "page get",
51 [FAULT_ALLOC_NID] = "alloc nid",
52 [FAULT_ORPHAN] = "orphan",
53 [FAULT_BLOCK] = "no more block",
54 [FAULT_DIR_DEPTH] = "too big dir depth",
55 [FAULT_EVICT_INODE] = "evict_inode fail",
56 [FAULT_TRUNCATE] = "truncate fail",
57 [FAULT_READ_IO] = "read IO error",
58 [FAULT_CHECKPOINT] = "checkpoint error",
59 [FAULT_DISCARD] = "discard error",
60 [FAULT_WRITE_IO] = "write IO error",
61 [FAULT_SLAB_ALLOC] = "slab alloc",
62 [FAULT_DQUOT_INIT] = "dquot initialize",
63 [FAULT_LOCK_OP] = "lock_op",
64 [FAULT_BLKADDR_VALIDITY] = "invalid blkaddr",
65 [FAULT_BLKADDR_CONSISTENCE] = "inconsistent blkaddr",
8b10d365 66 [FAULT_NO_SEGMENT] = "no free segment",
2c63fead 67};
08796897 68
d494500a
CY		 69void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
70 unsigned int type)
08796897 71{
63189b78 72 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1ecc0c5c 73
08796897 74 if (rate) {
1ecc0c5c
CY		 75 atomic_set(&ffi->inject_ops, 0);
76 ffi->inject_rate = rate;
08796897 77 }
d494500a
CY		 78
79 if (type)
80 ffi->inject_type = type;
81
82 if (!rate && !type)
83 memset(ffi, 0, sizeof(struct f2fs_fault_info));
08796897 84}
73faec4d
JK		 85#endif
86
2658e50d 87/* f2fs-wide shrinker description */
bfcba5ba
QZ		 88static struct shrinker *f2fs_shrinker_info;
89
90static int __init f2fs_init_shrinker(void)
91{
92 f2fs_shrinker_info = shrinker_alloc(0, "f2fs-shrinker");
93 if (!f2fs_shrinker_info)
94 return -ENOMEM;
95
96 f2fs_shrinker_info->count_objects = f2fs_shrink_count;
97 f2fs_shrinker_info->scan_objects = f2fs_shrink_scan;
98
99 shrinker_register(f2fs_shrinker_info);
100
101 return 0;
102}
103
104static void f2fs_exit_shrinker(void)
105{
106 shrinker_free(f2fs_shrinker_info);
107}
2658e50d 108
aff063e2 109enum {
696c018c 110 Opt_gc_background,
aff063e2 111 Opt_disable_roll_forward,
2d834bf9 112 Opt_norecovery,
aff063e2 113 Opt_discard,
64058be9 114 Opt_nodiscard,
aff063e2 115 Opt_noheap,
7a20b8a6 116 Opt_heap,
4058c511 117 Opt_user_xattr,
aff063e2 118 Opt_nouser_xattr,
4058c511 119 Opt_acl,
aff063e2
JK		 120 Opt_noacl,
121 Opt_active_logs,
122 Opt_disable_ext_identify,
444c580f 123 Opt_inline_xattr,
23cf7212 124 Opt_noinline_xattr,
6afc662e 125 Opt_inline_xattr_size,
8274de77 126 Opt_inline_data,
5efd3c6f 127 Opt_inline_dentry,
97c1794a 128 Opt_noinline_dentry,
6b4afdd7 129 Opt_flush_merge,
69e9e427 130 Opt_noflush_merge,
6047de54 131 Opt_barrier,
0f7b2abd 132 Opt_nobarrier,
d5053a34 133 Opt_fastboot,
89672159 134 Opt_extent_cache,
7daaea25 135 Opt_noextent_cache,
75342797 136 Opt_noinline_data,
343f40f0 137 Opt_data_flush,
7e65be49 138 Opt_reserve_root,
7c2e5963
JK		 139 Opt_resgid,
140 Opt_resuid,
36abef4e 141 Opt_mode,
73faec4d 142 Opt_fault_injection,
d494500a 143 Opt_fault_type,
6d94c74a
JK		 144 Opt_lazytime,
145 Opt_nolazytime,
4b2414d0
CY		 146 Opt_quota,
147 Opt_noquota,
0abd675e
CY		 148 Opt_usrquota,
149 Opt_grpquota,
5c57132e 150 Opt_prjquota,
4b2414d0
CY		 151 Opt_usrjquota,
152 Opt_grpjquota,
153 Opt_prjjquota,
154 Opt_offusrjquota,
155 Opt_offgrpjquota,
156 Opt_offprjjquota,
157 Opt_jqfmt_vfsold,
158 Opt_jqfmt_vfsv0,
159 Opt_jqfmt_vfsv1,
07939627 160 Opt_alloc,
93cf93f1 161 Opt_fsync,
ff62af20 162 Opt_test_dummy_encryption,
27aacd28 163 Opt_inlinecrypt,
4d3aed70
DR		 164 Opt_checkpoint_disable,
165 Opt_checkpoint_disable_cap,
166 Opt_checkpoint_disable_cap_perc,
167 Opt_checkpoint_enable,
261eeb9c
DJ		 168 Opt_checkpoint_merge,
169 Opt_nocheckpoint_merge,
4c8ff709
CY		 170 Opt_compress_algorithm,
171 Opt_compress_log_size,
172 Opt_compress_extension,
151b1982 173 Opt_nocompress_extension,
b28f047b 174 Opt_compress_chksum,
602a16d5 175 Opt_compress_mode,
6ce19aff 176 Opt_compress_cache,
093749e2 177 Opt_atgc,
5911d2d1
CY		 178 Opt_gc_merge,
179 Opt_nogc_merge,
4f993264 180 Opt_discard_unit,
7a8fc586 181 Opt_memory_mode,
71644dff 182 Opt_age_extent_cache,
b62e71be 183 Opt_errors,
aff063e2
JK		 184 Opt_err,
185};
186
187static match_table_t f2fs_tokens = {
696c018c 188 {Opt_gc_background, "background_gc=%s"},
aff063e2 189 {Opt_disable_roll_forward, "disable_roll_forward"},
2d834bf9 190 {Opt_norecovery, "norecovery"},
aff063e2 191 {Opt_discard, "discard"},
64058be9 192 {Opt_nodiscard, "nodiscard"},
aff063e2 193 {Opt_noheap, "no_heap"},
7a20b8a6 194 {Opt_heap, "heap"},
4058c511 195 {Opt_user_xattr, "user_xattr"},
aff063e2 196 {Opt_nouser_xattr, "nouser_xattr"},
4058c511 197 {Opt_acl, "acl"},
aff063e2
JK		 198 {Opt_noacl, "noacl"},
199 {Opt_active_logs, "active_logs=%u"},
200 {Opt_disable_ext_identify, "disable_ext_identify"},
444c580f 201 {Opt_inline_xattr, "inline_xattr"},
23cf7212 202 {Opt_noinline_xattr, "noinline_xattr"},
6afc662e 203 {Opt_inline_xattr_size, "inline_xattr_size=%u"},
8274de77 204 {Opt_inline_data, "inline_data"},
5efd3c6f 205 {Opt_inline_dentry, "inline_dentry"},
97c1794a 206 {Opt_noinline_dentry, "noinline_dentry"},
6b4afdd7 207 {Opt_flush_merge, "flush_merge"},
69e9e427 208 {Opt_noflush_merge, "noflush_merge"},
6047de54 209 {Opt_barrier, "barrier"},
0f7b2abd 210 {Opt_nobarrier, "nobarrier"},
d5053a34 211 {Opt_fastboot, "fastboot"},
89672159 212 {Opt_extent_cache, "extent_cache"},
7daaea25 213 {Opt_noextent_cache, "noextent_cache"},
75342797 214 {Opt_noinline_data, "noinline_data"},
343f40f0 215 {Opt_data_flush, "data_flush"},
7e65be49 216 {Opt_reserve_root, "reserve_root=%u"},
7c2e5963
JK		 217 {Opt_resgid, "resgid=%u"},
218 {Opt_resuid, "resuid=%u"},
36abef4e 219 {Opt_mode, "mode=%s"},
73faec4d 220 {Opt_fault_injection, "fault_injection=%u"},
d494500a 221 {Opt_fault_type, "fault_type=%u"},
6d94c74a
JK		 222 {Opt_lazytime, "lazytime"},
223 {Opt_nolazytime, "nolazytime"},
4b2414d0
CY		 224 {Opt_quota, "quota"},
225 {Opt_noquota, "noquota"},
0abd675e
CY		 226 {Opt_usrquota, "usrquota"},
227 {Opt_grpquota, "grpquota"},
5c57132e 228 {Opt_prjquota, "prjquota"},
4b2414d0
CY		 229 {Opt_usrjquota, "usrjquota=%s"},
230 {Opt_grpjquota, "grpjquota=%s"},
231 {Opt_prjjquota, "prjjquota=%s"},
232 {Opt_offusrjquota, "usrjquota="},
233 {Opt_offgrpjquota, "grpjquota="},
234 {Opt_offprjjquota, "prjjquota="},
235 {Opt_jqfmt_vfsold, "jqfmt=vfsold"},
236 {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
237 {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
07939627 238 {Opt_alloc, "alloc_mode=%s"},
93cf93f1 239 {Opt_fsync, "fsync_mode=%s"},
ed318a6c 240 {Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
ff62af20 241 {Opt_test_dummy_encryption, "test_dummy_encryption"},
27aacd28 242 {Opt_inlinecrypt, "inlinecrypt"},
4d3aed70
DR		 243 {Opt_checkpoint_disable, "checkpoint=disable"},
244 {Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
245 {Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
246 {Opt_checkpoint_enable, "checkpoint=enable"},
261eeb9c
DJ		 247 {Opt_checkpoint_merge, "checkpoint_merge"},
248 {Opt_nocheckpoint_merge, "nocheckpoint_merge"},
4c8ff709
CY		 249 {Opt_compress_algorithm, "compress_algorithm=%s"},
250 {Opt_compress_log_size, "compress_log_size=%u"},
251 {Opt_compress_extension, "compress_extension=%s"},
151b1982 252 {Opt_nocompress_extension, "nocompress_extension=%s"},
b28f047b 253 {Opt_compress_chksum, "compress_chksum"},
602a16d5 254 {Opt_compress_mode, "compress_mode=%s"},
6ce19aff 255 {Opt_compress_cache, "compress_cache"},
093749e2 256 {Opt_atgc, "atgc"},
5911d2d1
CY		 257 {Opt_gc_merge, "gc_merge"},
258 {Opt_nogc_merge, "nogc_merge"},
4f993264 259 {Opt_discard_unit, "discard_unit=%s"},
7a8fc586 260 {Opt_memory_mode, "memory=%s"},
71644dff 261 {Opt_age_extent_cache, "age_extent_cache"},
b62e71be 262 {Opt_errors, "errors=%s"},
aff063e2
JK		 263 {Opt_err, NULL},
264};
265
b1c9d3f8
CY		 266void f2fs_printk(struct f2fs_sb_info *sbi, bool limit_rate,
267 const char *fmt, ...)
a07ef784
NJ		 268{
269 struct va_format vaf;
270 va_list args;
dcbb4c10 271 int level;
a07ef784
NJ		 272
273 va_start(args, fmt);
dcbb4c10
JP		 274
275 level = printk_get_level(fmt);
276 vaf.fmt = printk_skip_level(fmt);
a07ef784 277 vaf.va = &args;
b1c9d3f8
CY		 278 if (limit_rate)
279 printk_ratelimited("%c%cF2FS-fs (%s): %pV\n",
280 KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
281 else
282 printk("%c%cF2FS-fs (%s): %pV\n",
283 KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
dcbb4c10 284
a07ef784
NJ		 285 va_end(args);
286}
287
5298d4bf 288#if IS_ENABLED(CONFIG_UNICODE)
5aba5430
DR		 289static const struct f2fs_sb_encodings {
290 __u16 magic;
291 char *name;
49bd03cc 292 unsigned int version;
5aba5430 293} f2fs_sb_encoding_map[] = {
49bd03cc 294 {F2FS_ENC_UTF8_12_1, "utf8", UNICODE_AGE(12, 1, 0)},
5aba5430
DR		 295};
296
86e80575
CH		 297static const struct f2fs_sb_encodings *
298f2fs_sb_read_encoding(const struct f2fs_super_block *sb)
5aba5430
DR		 299{
300 __u16 magic = le16_to_cpu(sb->s_encoding);
301 int i;
302
303 for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++)
304 if (magic == f2fs_sb_encoding_map[i].magic)
86e80575 305 return &f2fs_sb_encoding_map[i];
5aba5430 306
86e80575 307 return NULL;
5aba5430 308}
4d9a2bb1
CY		 309
310struct kmem_cache *f2fs_cf_name_slab;
311static int __init f2fs_create_casefold_cache(void)
312{
313 f2fs_cf_name_slab = f2fs_kmem_cache_create("f2fs_casefolded_name",
314 F2FS_NAME_LEN);
870af777 315 return f2fs_cf_name_slab ? 0 : -ENOMEM;
4d9a2bb1
CY		 316}
317
318static void f2fs_destroy_casefold_cache(void)
319{
320 kmem_cache_destroy(f2fs_cf_name_slab);
321}
322#else
323static int __init f2fs_create_casefold_cache(void) { return 0; }
324static void f2fs_destroy_casefold_cache(void) { }
5aba5430
DR		 325#endif
326
7e65be49
JK		 327static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
328{
da35fe96 329 block_t limit = min((sbi->user_block_count >> 3),
9a9aecaa 330 sbi->user_block_count - sbi->reserved_blocks);
7e65be49 331
da35fe96 332 /* limit is 12.5% */
63189b78
CY		 333 if (test_opt(sbi, RESERVE_ROOT) &&
334 F2FS_OPTION(sbi).root_reserved_blocks > limit) {
335 F2FS_OPTION(sbi).root_reserved_blocks = limit;
dcbb4c10
JP		 336 f2fs_info(sbi, "Reduce reserved blocks for root = %u",
337 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 338 }
7c2e5963 339 if (!test_opt(sbi, RESERVE_ROOT) &&
63189b78 340 (!uid_eq(F2FS_OPTION(sbi).s_resuid,
7c2e5963 341 make_kuid(&init_user_ns, F2FS_DEF_RESUID)) ||
63189b78 342 !gid_eq(F2FS_OPTION(sbi).s_resgid,
7c2e5963 343 make_kgid(&init_user_ns, F2FS_DEF_RESGID))))
dcbb4c10
JP		 344 f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
345 from_kuid_munged(&init_user_ns,
346 F2FS_OPTION(sbi).s_resuid),
347 from_kgid_munged(&init_user_ns,
348 F2FS_OPTION(sbi).s_resgid));
7e65be49
JK		 349}
350
1ae18f71
JK		 351static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi)
352{
353 if (!F2FS_OPTION(sbi).unusable_cap_perc)
354 return;
355
356 if (F2FS_OPTION(sbi).unusable_cap_perc == 100)
357 F2FS_OPTION(sbi).unusable_cap = sbi->user_block_count;
358 else
359 F2FS_OPTION(sbi).unusable_cap = (sbi->user_block_count / 100) *
360 F2FS_OPTION(sbi).unusable_cap_perc;
361
362 f2fs_info(sbi, "Adjust unusable cap for checkpoint=disable = %u / %u%%",
363 F2FS_OPTION(sbi).unusable_cap,
364 F2FS_OPTION(sbi).unusable_cap_perc);
365}
366
aff063e2
JK		 367static void init_once(void *foo)
368{
369 struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
370
aff063e2
JK		 371 inode_init_once(&fi->vfs_inode);
372}
373
4b2414d0
CY		 374#ifdef CONFIG_QUOTA
375static const char * const quotatypes[] = INITQFNAMES;
376#define QTYPE2NAME(t) (quotatypes[t])
377static int f2fs_set_qf_name(struct super_block *sb, int qtype,
378 substring_t *args)
379{
380 struct f2fs_sb_info *sbi = F2FS_SB(sb);
381 char *qname;
382 int ret = -EINVAL;
383
63189b78 384 if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 385 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 386 return -EINVAL;
387 }
7beb01f7 388 if (f2fs_sb_has_quota_ino(sbi)) {
dcbb4c10 389 f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name");
ea676733
JK		 390 return 0;
391 }
392
4b2414d0
CY		 393 qname = match_strdup(args);
394 if (!qname) {
dcbb4c10 395 f2fs_err(sbi, "Not enough memory for storing quotafile name");
f365c6cc 396 return -ENOMEM;
4b2414d0 397 }
63189b78
CY		 398 if (F2FS_OPTION(sbi).s_qf_names[qtype]) {
399 if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0)
4b2414d0
CY		 400 ret = 0;
401 else
dcbb4c10 402 f2fs_err(sbi, "%s quota file already specified",
4b2414d0
CY		 403 QTYPE2NAME(qtype));
404 goto errout;
405 }
406 if (strchr(qname, '/')) {
dcbb4c10 407 f2fs_err(sbi, "quotafile must be on filesystem root");
4b2414d0
CY		 408 goto errout;
409 }
63189b78 410 F2FS_OPTION(sbi).s_qf_names[qtype] = qname;
4b2414d0
CY		 411 set_opt(sbi, QUOTA);
412 return 0;
413errout:
ba87a45c 414 kfree(qname);
4b2414d0
CY		 415 return ret;
416}
417
418static int f2fs_clear_qf_name(struct super_block *sb, int qtype)
419{
420 struct f2fs_sb_info *sbi = F2FS_SB(sb);
421
63189b78 422 if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 423 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 424 return -EINVAL;
425 }
ba87a45c 426 kfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
63189b78 427 F2FS_OPTION(sbi).s_qf_names[qtype] = NULL;
4b2414d0
CY		 428 return 0;
429}
430
431static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
432{
433 /*
434 * We do the test below only for project quotas. 'usrquota' and
435 * 'grpquota' mount options are allowed even without quota feature
436 * to support legacy quotas in quota files.
437 */
7beb01f7 438 if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) {
dcbb4c10 439 f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement.");
4b2414d0
CY		 440 return -1;
441 }
63189b78
CY		 442 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
443 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
444 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) {
445 if (test_opt(sbi, USRQUOTA) &&
446 F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
4b2414d0
CY		 447 clear_opt(sbi, USRQUOTA);
448
63189b78
CY		 449 if (test_opt(sbi, GRPQUOTA) &&
450 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
4b2414d0
CY		 451 clear_opt(sbi, GRPQUOTA);
452
63189b78
CY		 453 if (test_opt(sbi, PRJQUOTA) &&
454 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4b2414d0
CY		 455 clear_opt(sbi, PRJQUOTA);
456
457 if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) ||
458 test_opt(sbi, PRJQUOTA)) {
dcbb4c10 459 f2fs_err(sbi, "old and new quota format mixing");
4b2414d0
CY		 460 return -1;
461 }
462
63189b78 463 if (!F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 464 f2fs_err(sbi, "journaled quota format not specified");
4b2414d0
CY		 465 return -1;
466 }
467 }
ea676733 468
7beb01f7 469 if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 470 f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt");
63189b78 471 F2FS_OPTION(sbi).s_jquota_fmt = 0;
ea676733 472 }
4b2414d0
CY		 473 return 0;
474}
475#endif
476
ed318a6c
EB		 477static int f2fs_set_test_dummy_encryption(struct super_block *sb,
478 const char *opt,
479 const substring_t *arg,
480 bool is_remount)
481{
482 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c5bca38d
EB		 483 struct fs_parameter param = {
484 .type = fs_value_is_string,
485 .string = arg->from ? arg->from : "",
486 };
487 struct fscrypt_dummy_policy *policy =
488 &F2FS_OPTION(sbi).dummy_enc_policy;
ed318a6c
EB		 489 int err;
490
c5bca38d
EB		 491 if (!IS_ENABLED(CONFIG_FS_ENCRYPTION)) {
492 f2fs_warn(sbi, "test_dummy_encryption option not supported");
493 return -EINVAL;
494 }
495
ed318a6c
EB		 496 if (!f2fs_sb_has_encrypt(sbi)) {
497 f2fs_err(sbi, "Encrypt feature is off");
498 return -EINVAL;
499 }
500
501 /*
502 * This mount option is just for testing, and it's not worthwhile to
503 * implement the extra complexity (e.g. RCU protection) that would be
504 * needed to allow it to be set or changed during remount. We do allow
505 * it to be specified during remount, but only if there is no change.
506 */
c5bca38d 507 if (is_remount && !fscrypt_is_dummy_policy_set(policy)) {
ed318a6c
EB		 508 f2fs_warn(sbi, "Can't set test_dummy_encryption on remount");
509 return -EINVAL;
510 }
c5bca38d
EB		 511
512 err = fscrypt_parse_test_dummy_encryption(&param, policy);
ed318a6c
EB		 513 if (err) {
514 if (err == -EEXIST)
515 f2fs_warn(sbi,
516 "Can't change test_dummy_encryption on remount");
517 else if (err == -EINVAL)
518 f2fs_warn(sbi, "Value of option \"%s\" is unrecognized",
519 opt);
520 else
521 f2fs_warn(sbi, "Error processing option \"%s\" [%d]",
522 opt, err);
523 return -EINVAL;
524 }
525 f2fs_warn(sbi, "Test dummy encryption mode enabled");
64e3ed0b 526 return 0;
ed318a6c
EB		 527}
528
3fde13f8 529#ifdef CONFIG_F2FS_FS_COMPRESSION
7e1b150f
CY		 530static bool is_compress_extension_exist(struct f2fs_sb_info *sbi,
531 const char *new_ext, bool is_ext)
532{
533 unsigned char (*ext)[F2FS_EXTENSION_LEN];
534 int ext_cnt;
535 int i;
536
537 if (is_ext) {
538 ext = F2FS_OPTION(sbi).extensions;
539 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
540 } else {
541 ext = F2FS_OPTION(sbi).noextensions;
542 ext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
543 }
544
545 for (i = 0; i < ext_cnt; i++) {
546 if (!strcasecmp(new_ext, ext[i]))
547 return true;
548 }
549
550 return false;
551}
552
151b1982
FC		 553/*
554 * 1. The same extension name cannot not appear in both compress and non-compress extension
555 * at the same time.
556 * 2. If the compress extension specifies all files, the types specified by the non-compress
557 * extension will be treated as special cases and will not be compressed.
558 * 3. Don't allow the non-compress extension specifies all files.
559 */
560static int f2fs_test_compress_extension(struct f2fs_sb_info *sbi)
561{
562 unsigned char (*ext)[F2FS_EXTENSION_LEN];
563 unsigned char (*noext)[F2FS_EXTENSION_LEN];
564 int ext_cnt, noext_cnt, index = 0, no_index = 0;
565
566 ext = F2FS_OPTION(sbi).extensions;
567 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
568 noext = F2FS_OPTION(sbi).noextensions;
569 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
570
571 if (!noext_cnt)
572 return 0;
573
574 for (no_index = 0; no_index < noext_cnt; no_index++) {
575 if (!strcasecmp("*", noext[no_index])) {
576 f2fs_info(sbi, "Don't allow the nocompress extension specifies all files");
577 return -EINVAL;
578 }
579 for (index = 0; index < ext_cnt; index++) {
580 if (!strcasecmp(ext[index], noext[no_index])) {
581 f2fs_info(sbi, "Don't allow the same extension %s appear in both compress and nocompress extension",
582 ext[index]);
583 return -EINVAL;
584 }
585 }
586 }
587 return 0;
588}
589
3fde13f8
CY		 590#ifdef CONFIG_F2FS_FS_LZ4
591static int f2fs_set_lz4hc_level(struct f2fs_sb_info *sbi, const char *str)
592{
593#ifdef CONFIG_F2FS_FS_LZ4HC
594 unsigned int level;
3fde13f8
CY		 595
596 if (strlen(str) == 3) {
091a4dfb 597 F2FS_OPTION(sbi).compress_level = 0;
3fde13f8
CY		 598 return 0;
599 }
600
3fde13f8
CY		 601 str += 3;
602
603 if (str[0] != ':') {
604 f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
605 return -EINVAL;
606 }
607 if (kstrtouint(str + 1, 10, &level))
608 return -EINVAL;
609
c571fbb5 610 if (!f2fs_is_compress_level_valid(COMPRESS_LZ4, level)) {
3fde13f8
CY		 611 f2fs_info(sbi, "invalid lz4hc compress level: %d", level);
612 return -EINVAL;
613 }
614
615 F2FS_OPTION(sbi).compress_level = level;
616 return 0;
617#else
00e120b5
JK		 618 if (strlen(str) == 3) {
619 F2FS_OPTION(sbi).compress_level = 0;
620 return 0;
621 }
3fde13f8
CY		 622 f2fs_info(sbi, "kernel doesn't support lz4hc compression");
623 return -EINVAL;
624#endif
625}
626#endif
627
628#ifdef CONFIG_F2FS_FS_ZSTD
629static int f2fs_set_zstd_level(struct f2fs_sb_info *sbi, const char *str)
630{
e39602da 631 int level;
3fde13f8
CY		 632 int len = 4;
633
634 if (strlen(str) == len) {
00e120b5 635 F2FS_OPTION(sbi).compress_level = F2FS_ZSTD_DEFAULT_CLEVEL;
3fde13f8
CY		 636 return 0;
637 }
638
639 str += len;
640
641 if (str[0] != ':') {
642 f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
643 return -EINVAL;
644 }
e39602da 645 if (kstrtoint(str + 1, 10, &level))
3fde13f8
CY		 646 return -EINVAL;
647
e39602da
CY		 648 /* f2fs does not support negative compress level now */
649 if (level < 0) {
650 f2fs_info(sbi, "do not support negative compress level: %d", level);
651 return -ERANGE;
652 }
653
c571fbb5 654 if (!f2fs_is_compress_level_valid(COMPRESS_ZSTD, level)) {
3fde13f8
CY		 655 f2fs_info(sbi, "invalid zstd compress level: %d", level);
656 return -EINVAL;
657 }
658
659 F2FS_OPTION(sbi).compress_level = level;
660 return 0;
661}
662#endif
663#endif
664
ed318a6c 665static int parse_options(struct super_block *sb, char *options, bool is_remount)
696c018c
NJ		 666{
667 struct f2fs_sb_info *sbi = F2FS_SB(sb);
668 substring_t args[MAX_OPT_ARGS];
1f0b067b 669#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 670 unsigned char (*ext)[F2FS_EXTENSION_LEN];
151b1982
FC		 671 unsigned char (*noext)[F2FS_EXTENSION_LEN];
672 int ext_cnt, noext_cnt;
1f0b067b 673#endif
696c018c 674 char *p, *name;
1f0b067b 675 int arg = 0;
7c2e5963
JK		 676 kuid_t uid;
677 kgid_t gid;
4b2414d0 678 int ret;
696c018c
NJ		 679
680 if (!options)
a7d9fe3c 681 goto default_check;
696c018c
NJ		 682
683 while ((p = strsep(&options, ",")) != NULL) {
684 int token;
5f029c04 685
696c018c
NJ		 686 if (!*p)
687 continue;
688 /*
689 * Initialize args struct so we know whether arg was
690 * found; some options take optional arguments.
691 */
692 args[0].to = args[0].from = NULL;
693 token = match_token(p, f2fs_tokens, args);
694
695 switch (token) {
696 case Opt_gc_background:
697 name = match_strdup(&args[0]);
698
699 if (!name)
700 return -ENOMEM;
3c57f751 701 if (!strcmp(name, "on")) {
bbbc34fd 702 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
3c57f751 703 } else if (!strcmp(name, "off")) {
bbbc34fd 704 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
3c57f751 705 } else if (!strcmp(name, "sync")) {
bbbc34fd 706 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
6aefd93b 707 } else {
ba87a45c 708 kfree(name);
696c018c
NJ		 709 return -EINVAL;
710 }
ba87a45c 711 kfree(name);
696c018c
NJ		 712 break;
713 case Opt_disable_roll_forward:
714 set_opt(sbi, DISABLE_ROLL_FORWARD);
715 break;
2d834bf9
JK		 716 case Opt_norecovery:
717 /* this option mounts f2fs with ro */
a9117eca 718 set_opt(sbi, NORECOVERY);
2d834bf9
JK		 719 if (!f2fs_readonly(sb))
720 return -EINVAL;
721 break;
696c018c 722 case Opt_discard:
f7db8dd6
CY		 723 if (!f2fs_hw_support_discard(sbi)) {
724 f2fs_warn(sbi, "device does not support discard");
725 break;
726 }
7d20c8ab 727 set_opt(sbi, DISCARD);
696c018c 728 break;
64058be9 729 case Opt_nodiscard:
f7db8dd6 730 if (f2fs_hw_should_discard(sbi)) {
dcbb4c10 731 f2fs_warn(sbi, "discard is required for zoned block devices");
96ba2dec
DLM		 732 return -EINVAL;
733 }
64058be9 734 clear_opt(sbi, DISCARD);
487df616 735 break;
696c018c 736 case Opt_noheap:
7a20b8a6 737 case Opt_heap:
4e0197f9 738 f2fs_warn(sbi, "heap/no_heap options were deprecated");
7a20b8a6 739 break;
696c018c 740#ifdef CONFIG_F2FS_FS_XATTR
4058c511
KA		 741 case Opt_user_xattr:
742 set_opt(sbi, XATTR_USER);
743 break;
696c018c
NJ		 744 case Opt_nouser_xattr:
745 clear_opt(sbi, XATTR_USER);
746 break;
444c580f
JK		 747 case Opt_inline_xattr:
748 set_opt(sbi, INLINE_XATTR);
749 break;
23cf7212
CY		 750 case Opt_noinline_xattr:
751 clear_opt(sbi, INLINE_XATTR);
752 break;
6afc662e
CY		 753 case Opt_inline_xattr_size:
754 if (args->from && match_int(args, &arg))
755 return -EINVAL;
756 set_opt(sbi, INLINE_XATTR_SIZE);
63189b78 757 F2FS_OPTION(sbi).inline_xattr_size = arg;
6afc662e 758 break;
696c018c 759#else
4058c511 760 case Opt_user_xattr:
dcbb4c10 761 f2fs_info(sbi, "user_xattr options not supported");
4058c511 762 break;
696c018c 763 case Opt_nouser_xattr:
dcbb4c10 764 f2fs_info(sbi, "nouser_xattr options not supported");
696c018c 765 break;
444c580f 766 case Opt_inline_xattr:
dcbb4c10 767 f2fs_info(sbi, "inline_xattr options not supported");
444c580f 768 break;
23cf7212 769 case Opt_noinline_xattr:
dcbb4c10 770 f2fs_info(sbi, "noinline_xattr options not supported");
23cf7212 771 break;
696c018c
NJ		 772#endif
773#ifdef CONFIG_F2FS_FS_POSIX_ACL
4058c511
KA		 774 case Opt_acl:
775 set_opt(sbi, POSIX_ACL);
776 break;
696c018c
NJ		 777 case Opt_noacl:
778 clear_opt(sbi, POSIX_ACL);
779 break;
780#else
4058c511 781 case Opt_acl:
dcbb4c10 782 f2fs_info(sbi, "acl options not supported");
4058c511 783 break;
696c018c 784 case Opt_noacl:
dcbb4c10 785 f2fs_info(sbi, "noacl options not supported");
696c018c
NJ		 786 break;
787#endif
788 case Opt_active_logs:
789 if (args->from && match_int(args, &arg))
790 return -EINVAL;
d0b9e42a
CY		 791 if (arg != 2 && arg != 4 &&
792 arg != NR_CURSEG_PERSIST_TYPE)
696c018c 793 return -EINVAL;
63189b78 794 F2FS_OPTION(sbi).active_logs = arg;
696c018c
NJ		 795 break;
796 case Opt_disable_ext_identify:
797 set_opt(sbi, DISABLE_EXT_IDENTIFY);
798 break;
8274de77
HL		 799 case Opt_inline_data:
800 set_opt(sbi, INLINE_DATA);
801 break;
5efd3c6f
CY		 802 case Opt_inline_dentry:
803 set_opt(sbi, INLINE_DENTRY);
804 break;
97c1794a
CY		 805 case Opt_noinline_dentry:
806 clear_opt(sbi, INLINE_DENTRY);
807 break;
6b4afdd7
JK		 808 case Opt_flush_merge:
809 set_opt(sbi, FLUSH_MERGE);
810 break;
69e9e427
JK		 811 case Opt_noflush_merge:
812 clear_opt(sbi, FLUSH_MERGE);
813 break;
0f7b2abd
JK		 814 case Opt_nobarrier:
815 set_opt(sbi, NOBARRIER);
816 break;
6047de54
YL		 817 case Opt_barrier:
818 clear_opt(sbi, NOBARRIER);
819 break;
d5053a34
JK		 820 case Opt_fastboot:
821 set_opt(sbi, FASTBOOT);
822 break;
89672159 823 case Opt_extent_cache:
12607c1b 824 set_opt(sbi, READ_EXTENT_CACHE);
89672159 825 break;
7daaea25 826 case Opt_noextent_cache:
12607c1b 827 clear_opt(sbi, READ_EXTENT_CACHE);
7daaea25 828 break;
75342797
WL		 829 case Opt_noinline_data:
830 clear_opt(sbi, INLINE_DATA);
831 break;
343f40f0
CY		 832 case Opt_data_flush:
833 set_opt(sbi, DATA_FLUSH);
834 break;
7e65be49
JK		 835 case Opt_reserve_root:
836 if (args->from && match_int(args, &arg))
837 return -EINVAL;
838 if (test_opt(sbi, RESERVE_ROOT)) {
dcbb4c10
JP		 839 f2fs_info(sbi, "Preserve previous reserve_root=%u",
840 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 841 } else {
63189b78 842 F2FS_OPTION(sbi).root_reserved_blocks = arg;
7e65be49
JK		 843 set_opt(sbi, RESERVE_ROOT);
844 }
845 break;
7c2e5963
JK		 846 case Opt_resuid:
847 if (args->from && match_int(args, &arg))
848 return -EINVAL;
849 uid = make_kuid(current_user_ns(), arg);
850 if (!uid_valid(uid)) {
dcbb4c10 851 f2fs_err(sbi, "Invalid uid value %d", arg);
7c2e5963
JK		 852 return -EINVAL;
853 }
63189b78 854 F2FS_OPTION(sbi).s_resuid = uid;
7c2e5963
JK		 855 break;
856 case Opt_resgid:
857 if (args->from && match_int(args, &arg))
858 return -EINVAL;
859 gid = make_kgid(current_user_ns(), arg);
860 if (!gid_valid(gid)) {
dcbb4c10 861 f2fs_err(sbi, "Invalid gid value %d", arg);
7c2e5963
JK		 862 return -EINVAL;
863 }
63189b78 864 F2FS_OPTION(sbi).s_resgid = gid;
7c2e5963 865 break;
36abef4e
JK		 866 case Opt_mode:
867 name = match_strdup(&args[0]);
868
869 if (!name)
870 return -ENOMEM;
3c57f751 871 if (!strcmp(name, "adaptive")) {
b0332a0f 872 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
3c57f751 873 } else if (!strcmp(name, "lfs")) {
b0332a0f 874 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
6691d940
DJ		 875 } else if (!strcmp(name, "fragment:segment")) {
876 F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_SEG;
877 } else if (!strcmp(name, "fragment:block")) {
878 F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_BLK;
36abef4e 879 } else {
ba87a45c 880 kfree(name);
36abef4e
JK		 881 return -EINVAL;
882 }
ba87a45c 883 kfree(name);
36abef4e 884 break;
4cb037ec 885#ifdef CONFIG_F2FS_FAULT_INJECTION
73faec4d
JK		 886 case Opt_fault_injection:
887 if (args->from && match_int(args, &arg))
888 return -EINVAL;
d494500a
CY		 889 f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
890 set_opt(sbi, FAULT_INJECTION);
d494500a 891 break;
4cb037ec 892
d494500a
CY		 893 case Opt_fault_type:
894 if (args->from && match_int(args, &arg))
895 return -EINVAL;
d494500a 896 f2fs_build_fault_attr(sbi, 0, arg);
0cc0dec2 897 set_opt(sbi, FAULT_INJECTION);
4cb037ec 898 break;
73faec4d 899#else
4cb037ec 900 case Opt_fault_injection:
dcbb4c10 901 f2fs_info(sbi, "fault_injection options not supported");
73faec4d 902 break;
4cb037ec
CX		 903
904 case Opt_fault_type:
dcbb4c10 905 f2fs_info(sbi, "fault_type options not supported");
4cb037ec
CX		 906 break;
907#endif
6d94c74a 908 case Opt_lazytime:
1751e8a6 909 sb->s_flags |= SB_LAZYTIME;
6d94c74a
JK		 910 break;
911 case Opt_nolazytime:
1751e8a6 912 sb->s_flags &= ~SB_LAZYTIME;
6d94c74a 913 break;
0abd675e 914#ifdef CONFIG_QUOTA
4b2414d0 915 case Opt_quota:
0abd675e
CY		 916 case Opt_usrquota:
917 set_opt(sbi, USRQUOTA);
918 break;
919 case Opt_grpquota:
920 set_opt(sbi, GRPQUOTA);
921 break;
5c57132e
CY		 922 case Opt_prjquota:
923 set_opt(sbi, PRJQUOTA);
924 break;
4b2414d0
CY		 925 case Opt_usrjquota:
926 ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]);
927 if (ret)
928 return ret;
929 break;
930 case Opt_grpjquota:
931 ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]);
932 if (ret)
933 return ret;
934 break;
935 case Opt_prjjquota:
936 ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]);
937 if (ret)
938 return ret;
939 break;
940 case Opt_offusrjquota:
941 ret = f2fs_clear_qf_name(sb, USRQUOTA);
942 if (ret)
943 return ret;
944 break;
945 case Opt_offgrpjquota:
946 ret = f2fs_clear_qf_name(sb, GRPQUOTA);
947 if (ret)
948 return ret;
949 break;
950 case Opt_offprjjquota:
951 ret = f2fs_clear_qf_name(sb, PRJQUOTA);
952 if (ret)
953 return ret;
954 break;
955 case Opt_jqfmt_vfsold:
63189b78 956 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
4b2414d0
CY		 957 break;
958 case Opt_jqfmt_vfsv0:
63189b78 959 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
4b2414d0
CY		 960 break;
961 case Opt_jqfmt_vfsv1:
63189b78 962 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
4b2414d0
CY		 963 break;
964 case Opt_noquota:
965 clear_opt(sbi, QUOTA);
966 clear_opt(sbi, USRQUOTA);
967 clear_opt(sbi, GRPQUOTA);
968 clear_opt(sbi, PRJQUOTA);
969 break;
0abd675e 970#else
4b2414d0 971 case Opt_quota:
0abd675e
CY		 972 case Opt_usrquota:
973 case Opt_grpquota:
5c57132e 974 case Opt_prjquota:
4b2414d0
CY		 975 case Opt_usrjquota:
976 case Opt_grpjquota:
977 case Opt_prjjquota:
978 case Opt_offusrjquota:
979 case Opt_offgrpjquota:
980 case Opt_offprjjquota:
981 case Opt_jqfmt_vfsold:
982 case Opt_jqfmt_vfsv0:
983 case Opt_jqfmt_vfsv1:
984 case Opt_noquota:
dcbb4c10 985 f2fs_info(sbi, "quota operations not supported");
0abd675e
CY		 986 break;
987#endif
07939627
JK		 988 case Opt_alloc:
989 name = match_strdup(&args[0]);
990 if (!name)
991 return -ENOMEM;
992
3c57f751 993 if (!strcmp(name, "default")) {
63189b78 994 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
3c57f751 995 } else if (!strcmp(name, "reuse")) {
63189b78 996 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
07939627 997 } else {
ba87a45c 998 kfree(name);
07939627
JK		 999 return -EINVAL;
1000 }
ba87a45c 1001 kfree(name);
07939627 1002 break;
93cf93f1
JZ		 1003 case Opt_fsync:
1004 name = match_strdup(&args[0]);
1005 if (!name)
1006 return -ENOMEM;
3c57f751 1007 if (!strcmp(name, "posix")) {
63189b78 1008 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
3c57f751 1009 } else if (!strcmp(name, "strict")) {
63189b78 1010 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
3c57f751 1011 } else if (!strcmp(name, "nobarrier")) {
d6290814
JK		 1012 F2FS_OPTION(sbi).fsync_mode =
1013 FSYNC_MODE_NOBARRIER;
93cf93f1 1014 } else {
ba87a45c 1015 kfree(name);
93cf93f1
JZ		 1016 return -EINVAL;
1017 }
ba87a45c 1018 kfree(name);
93cf93f1 1019 break;
ff62af20 1020 case Opt_test_dummy_encryption:
ed318a6c
EB		 1021 ret = f2fs_set_test_dummy_encryption(sb, p, &args[0],
1022 is_remount);
1023 if (ret)
1024 return ret;
ff62af20 1025 break;
27aacd28
ST		 1026 case Opt_inlinecrypt:
1027#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
1028 sb->s_flags |= SB_INLINECRYPT;
1029#else
1030 f2fs_info(sbi, "inline encryption not supported");
1031#endif
1032 break;
4d3aed70
DR		 1033 case Opt_checkpoint_disable_cap_perc:
1034 if (args->from && match_int(args, &arg))
4354994f 1035 return -EINVAL;
4d3aed70
DR		 1036 if (arg < 0 || arg > 100)
1037 return -EINVAL;
1ae18f71 1038 F2FS_OPTION(sbi).unusable_cap_perc = arg;
4d3aed70
DR		 1039 set_opt(sbi, DISABLE_CHECKPOINT);
1040 break;
1041 case Opt_checkpoint_disable_cap:
1042 if (args->from && match_int(args, &arg))
1043 return -EINVAL;
1044 F2FS_OPTION(sbi).unusable_cap = arg;
1045 set_opt(sbi, DISABLE_CHECKPOINT);
1046 break;
1047 case Opt_checkpoint_disable:
1048 set_opt(sbi, DISABLE_CHECKPOINT);
1049 break;
1050 case Opt_checkpoint_enable:
1051 clear_opt(sbi, DISABLE_CHECKPOINT);
4354994f 1052 break;
261eeb9c
DJ		 1053 case Opt_checkpoint_merge:
1054 set_opt(sbi, MERGE_CHECKPOINT);
1055 break;
1056 case Opt_nocheckpoint_merge:
1057 clear_opt(sbi, MERGE_CHECKPOINT);
1058 break;
1f0b067b 1059#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1060 case Opt_compress_algorithm:
1061 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1062 f2fs_info(sbi, "Image doesn't support compression");
1063 break;
4c8ff709
CY		 1064 }
1065 name = match_strdup(&args[0]);
1066 if (!name)
1067 return -ENOMEM;
3c57f751 1068 if (!strcmp(name, "lzo")) {
32be0e97 1069#ifdef CONFIG_F2FS_FS_LZO
3fde13f8 1070 F2FS_OPTION(sbi).compress_level = 0;
4c8ff709
CY		 1071 F2FS_OPTION(sbi).compress_algorithm =
1072 COMPRESS_LZO;
32be0e97
CY		 1073#else
1074 f2fs_info(sbi, "kernel doesn't support lzo compression");
1075#endif
3fde13f8 1076 } else if (!strncmp(name, "lz4", 3)) {
32be0e97 1077#ifdef CONFIG_F2FS_FS_LZ4
3fde13f8
CY		 1078 ret = f2fs_set_lz4hc_level(sbi, name);
1079 if (ret) {
1080 kfree(name);
1081 return -EINVAL;
1082 }
4c8ff709
CY		 1083 F2FS_OPTION(sbi).compress_algorithm =
1084 COMPRESS_LZ4;
32be0e97
CY		 1085#else
1086 f2fs_info(sbi, "kernel doesn't support lz4 compression");
1087#endif
3fde13f8 1088 } else if (!strncmp(name, "zstd", 4)) {
32be0e97 1089#ifdef CONFIG_F2FS_FS_ZSTD
3fde13f8
CY		 1090 ret = f2fs_set_zstd_level(sbi, name);
1091 if (ret) {
1092 kfree(name);
1093 return -EINVAL;
1094 }
50cfa66f
CY		 1095 F2FS_OPTION(sbi).compress_algorithm =
1096 COMPRESS_ZSTD;
32be0e97
CY		 1097#else
1098 f2fs_info(sbi, "kernel doesn't support zstd compression");
1099#endif
6d92b201 1100 } else if (!strcmp(name, "lzo-rle")) {
32be0e97 1101#ifdef CONFIG_F2FS_FS_LZORLE
3fde13f8 1102 F2FS_OPTION(sbi).compress_level = 0;
6d92b201
CY		 1103 F2FS_OPTION(sbi).compress_algorithm =
1104 COMPRESS_LZORLE;
32be0e97
CY		 1105#else
1106 f2fs_info(sbi, "kernel doesn't support lzorle compression");
1107#endif
4c8ff709
CY		 1108 } else {
1109 kfree(name);
1110 return -EINVAL;
1111 }
1112 kfree(name);
1113 break;
1114 case Opt_compress_log_size:
1115 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1116 f2fs_info(sbi, "Image doesn't support compression");
1117 break;
4c8ff709
CY		 1118 }
1119 if (args->from && match_int(args, &arg))
1120 return -EINVAL;
1121 if (arg < MIN_COMPRESS_LOG_SIZE ||
1122 arg > MAX_COMPRESS_LOG_SIZE) {
1123 f2fs_err(sbi,
1124 "Compress cluster log size is out of range");
1125 return -EINVAL;
1126 }
1127 F2FS_OPTION(sbi).compress_log_size = arg;
1128 break;
1129 case Opt_compress_extension:
1130 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1131 f2fs_info(sbi, "Image doesn't support compression");
1132 break;
4c8ff709
CY		 1133 }
1134 name = match_strdup(&args[0]);
1135 if (!name)
1136 return -ENOMEM;
1137
1138 ext = F2FS_OPTION(sbi).extensions;
1139 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
1140
1141 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1142 ext_cnt >= COMPRESS_EXT_NUM) {
1143 f2fs_err(sbi,
1144 "invalid extension length/number");
1145 kfree(name);
1146 return -EINVAL;
1147 }
1148
7e1b150f
CY		 1149 if (is_compress_extension_exist(sbi, name, true)) {
1150 kfree(name);
1151 break;
1152 }
1153
4c8ff709
CY		 1154 strcpy(ext[ext_cnt], name);
1155 F2FS_OPTION(sbi).compress_ext_cnt++;
1156 kfree(name);
1157 break;
151b1982
FC		 1158 case Opt_nocompress_extension:
1159 if (!f2fs_sb_has_compression(sbi)) {
1160 f2fs_info(sbi, "Image doesn't support compression");
1161 break;
1162 }
1163 name = match_strdup(&args[0]);
1164 if (!name)
1165 return -ENOMEM;
1166
1167 noext = F2FS_OPTION(sbi).noextensions;
1168 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
1169
1170 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1171 noext_cnt >= COMPRESS_EXT_NUM) {
1172 f2fs_err(sbi,
1173 "invalid extension length/number");
1174 kfree(name);
1175 return -EINVAL;
1176 }
1177
7e1b150f
CY		 1178 if (is_compress_extension_exist(sbi, name, false)) {
1179 kfree(name);
1180 break;
1181 }
1182
151b1982
FC		 1183 strcpy(noext[noext_cnt], name);
1184 F2FS_OPTION(sbi).nocompress_ext_cnt++;
1185 kfree(name);
1186 break;
b28f047b 1187 case Opt_compress_chksum:
d4998b78
YL		 1188 if (!f2fs_sb_has_compression(sbi)) {
1189 f2fs_info(sbi, "Image doesn't support compression");
1190 break;
1191 }
b28f047b
CY		 1192 F2FS_OPTION(sbi).compress_chksum = true;
1193 break;
602a16d5 1194 case Opt_compress_mode:
d4998b78
YL		 1195 if (!f2fs_sb_has_compression(sbi)) {
1196 f2fs_info(sbi, "Image doesn't support compression");
1197 break;
1198 }
602a16d5
DJ		 1199 name = match_strdup(&args[0]);
1200 if (!name)
1201 return -ENOMEM;
1202 if (!strcmp(name, "fs")) {
1203 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
1204 } else if (!strcmp(name, "user")) {
1205 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
1206 } else {
1207 kfree(name);
1208 return -EINVAL;
1209 }
1210 kfree(name);
1211 break;
6ce19aff 1212 case Opt_compress_cache:
d4998b78
YL		 1213 if (!f2fs_sb_has_compression(sbi)) {
1214 f2fs_info(sbi, "Image doesn't support compression");
1215 break;
1216 }
6ce19aff
CY		 1217 set_opt(sbi, COMPRESS_CACHE);
1218 break;
1f0b067b
CY		 1219#else
1220 case Opt_compress_algorithm:
1221 case Opt_compress_log_size:
1222 case Opt_compress_extension:
151b1982 1223 case Opt_nocompress_extension:
b28f047b 1224 case Opt_compress_chksum:
602a16d5 1225 case Opt_compress_mode:
6ce19aff 1226 case Opt_compress_cache:
1f0b067b
CY		 1227 f2fs_info(sbi, "compression options not supported");
1228 break;
1229#endif
093749e2
CY		 1230 case Opt_atgc:
1231 set_opt(sbi, ATGC);
1232 break;
5911d2d1
CY		 1233 case Opt_gc_merge:
1234 set_opt(sbi, GC_MERGE);
1235 break;
1236 case Opt_nogc_merge:
1237 clear_opt(sbi, GC_MERGE);
1238 break;
4f993264
CY		 1239 case Opt_discard_unit:
1240 name = match_strdup(&args[0]);
1241 if (!name)
1242 return -ENOMEM;
1243 if (!strcmp(name, "block")) {
1244 F2FS_OPTION(sbi).discard_unit =
1245 DISCARD_UNIT_BLOCK;
1246 } else if (!strcmp(name, "segment")) {
1247 F2FS_OPTION(sbi).discard_unit =
1248 DISCARD_UNIT_SEGMENT;
1249 } else if (!strcmp(name, "section")) {
1250 F2FS_OPTION(sbi).discard_unit =
1251 DISCARD_UNIT_SECTION;
1252 } else {
1253 kfree(name);
1254 return -EINVAL;
1255 }
1256 kfree(name);
1257 break;
7a8fc586
DJ		 1258 case Opt_memory_mode:
1259 name = match_strdup(&args[0]);
1260 if (!name)
1261 return -ENOMEM;
1262 if (!strcmp(name, "normal")) {
1263 F2FS_OPTION(sbi).memory_mode =
1264 MEMORY_MODE_NORMAL;
1265 } else if (!strcmp(name, "low")) {
1266 F2FS_OPTION(sbi).memory_mode =
1267 MEMORY_MODE_LOW;
1268 } else {
1269 kfree(name);
1270 return -EINVAL;
1271 }
1272 kfree(name);
1273 break;
71644dff
JK		 1274 case Opt_age_extent_cache:
1275 set_opt(sbi, AGE_EXTENT_CACHE);
1276 break;
b62e71be
CY		 1277 case Opt_errors:
1278 name = match_strdup(&args[0]);
1279 if (!name)
1280 return -ENOMEM;
1281 if (!strcmp(name, "remount-ro")) {
1282 F2FS_OPTION(sbi).errors =
1283 MOUNT_ERRORS_READONLY;
1284 } else if (!strcmp(name, "continue")) {
1285 F2FS_OPTION(sbi).errors =
1286 MOUNT_ERRORS_CONTINUE;
1287 } else if (!strcmp(name, "panic")) {
1288 F2FS_OPTION(sbi).errors =
1289 MOUNT_ERRORS_PANIC;
1290 } else {
1291 kfree(name);
1292 return -EINVAL;
1293 }
1294 kfree(name);
1295 break;
696c018c 1296 default:
dcbb4c10
JP		 1297 f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
1298 p);
696c018c
NJ		 1299 return -EINVAL;
1300 }
1301 }
a7d9fe3c 1302default_check:
4b2414d0
CY		 1303#ifdef CONFIG_QUOTA
1304 if (f2fs_check_quota_options(sbi))
1305 return -EINVAL;
00960c2c 1306#else
7beb01f7 1307 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1308 f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
00960c2c
SY		 1309 return -EINVAL;
1310 }
7beb01f7 1311 if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1312 f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
4ddc1b28
CY		 1313 return -EINVAL;
1314 }
4b2414d0 1315#endif
5298d4bf 1316#if !IS_ENABLED(CONFIG_UNICODE)
5aba5430
DR		 1317 if (f2fs_sb_has_casefold(sbi)) {
1318 f2fs_err(sbi,
1319 "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
1320 return -EINVAL;
1321 }
1322#endif
d0660122
CY		 1323 /*
1324 * The BLKZONED feature indicates that the drive was formatted with
1325 * zone alignment optimization. This is optional for host-aware
1326 * devices, but mandatory for host-managed zoned block devices.
1327 */
4f993264 1328 if (f2fs_sb_has_blkzoned(sbi)) {
b5a711ac 1329#ifdef CONFIG_BLK_DEV_ZONED
4f993264
CY		 1330 if (F2FS_OPTION(sbi).discard_unit !=
1331 DISCARD_UNIT_SECTION) {
1332 f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default");
1333 F2FS_OPTION(sbi).discard_unit =
1334 DISCARD_UNIT_SECTION;
1335 }
2bd4df8f
CG		 1336
1337 if (F2FS_OPTION(sbi).fs_mode != FS_MODE_LFS) {
1338 f2fs_info(sbi, "Only lfs mode is allowed with zoned block device feature");
1339 return -EINVAL;
1340 }
b5a711ac
YL		 1341#else
1342 f2fs_err(sbi, "Zoned block device support is not enabled");
1343 return -EINVAL;
1344#endif
4f993264 1345 }
ec91538d 1346
151b1982
FC		 1347#ifdef CONFIG_F2FS_FS_COMPRESSION
1348 if (f2fs_test_compress_extension(sbi)) {
1349 f2fs_err(sbi, "invalid compress or nocompress extension");
1350 return -EINVAL;
1351 }
1352#endif
1353
6afc662e 1354 if (test_opt(sbi, INLINE_XATTR_SIZE)) {
70db5b04
JK		 1355 int min_size, max_size;
1356
7beb01f7
CY		 1357 if (!f2fs_sb_has_extra_attr(sbi) ||
1358 !f2fs_sb_has_flexible_inline_xattr(sbi)) {
dcbb4c10 1359 f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
4d817ae0
CY		 1360 return -EINVAL;
1361 }
6afc662e 1362 if (!test_opt(sbi, INLINE_XATTR)) {
dcbb4c10 1363 f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
6afc662e
CY		 1364 return -EINVAL;
1365 }
70db5b04 1366
dde38c03 1367 min_size = MIN_INLINE_XATTR_SIZE;
dd6c89b5 1368 max_size = MAX_INLINE_XATTR_SIZE;
70db5b04
JK		 1369
1370 if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
1371 F2FS_OPTION(sbi).inline_xattr_size > max_size) {
dcbb4c10
JP		 1372 f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
1373 min_size, max_size);
6afc662e
CY		 1374 return -EINVAL;
1375 }
1376 }
0cdd3195 1377
80dc113a 1378 if (test_opt(sbi, ATGC) && f2fs_lfs_mode(sbi)) {
c5bf8348 1379 f2fs_err(sbi, "LFS is not compatible with ATGC");
80dc113a
JK		 1380 return -EINVAL;
1381 }
1382
ed8ac22b 1383 if (f2fs_is_readonly(sbi) && test_opt(sbi, FLUSH_MERGE)) {
967eaad1
YL		 1384 f2fs_err(sbi, "FLUSH_MERGE not compatible with readonly mode");
1385 return -EINVAL;
1386 }
1387
a7d9fe3c
JK		 1388 if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
1389 f2fs_err(sbi, "Allow to mount readonly mode only");
1390 return -EROFS;
1391 }
696c018c
NJ		 1392 return 0;
1393}
1394
aff063e2
JK		 1395static struct inode *f2fs_alloc_inode(struct super_block *sb)
1396{
1397 struct f2fs_inode_info *fi;
1398
c40e15a9 1399 if (time_to_inject(F2FS_SB(sb), FAULT_SLAB_ALLOC))
65d3af64 1400 return NULL;
65d3af64
MS		 1401
1402 fi = alloc_inode_sb(sb, f2fs_inode_cachep, GFP_F2FS_ZERO);
aff063e2
JK		 1403 if (!fi)
1404 return NULL;
1405
1406 init_once((void *) fi);
1407
434720fa 1408 /* Initialize f2fs-specific inode info */
204706c7 1409 atomic_set(&fi->dirty_pages, 0);
c2759eba 1410 atomic_set(&fi->i_compr_blocks, 0);
e4544b63 1411 init_f2fs_rwsem(&fi->i_sem);
c10c9820 1412 spin_lock_init(&fi->i_size_lock);
2710fd7e 1413 INIT_LIST_HEAD(&fi->dirty_list);
0f18b462 1414 INIT_LIST_HEAD(&fi->gdirty_list);
e4544b63
TM		 1415 init_f2fs_rwsem(&fi->i_gc_rwsem[READ]);
1416 init_f2fs_rwsem(&fi->i_gc_rwsem[WRITE]);
1417 init_f2fs_rwsem(&fi->i_xattr_sem);
aff063e2 1418
ab9fa662
JK		 1419 /* Will be used by directory only */
1420 fi->i_dir_level = F2FS_SB(sb)->dir_level;
f2470371 1421
aff063e2
JK		 1422 return &fi->vfs_inode;
1423}
1424
531ad7d5
JK		 1425static int f2fs_drop_inode(struct inode *inode)
1426{
a8933b6b 1427 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
b8d96a30 1428 int ret;
a8933b6b
CY		 1429
1430 /*
1431 * during filesystem shutdown, if checkpoint is disabled,
1432 * drop useless meta/node dirty pages.
1433 */
1434 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1435 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1436 inode->i_ino == F2FS_META_INO(sbi)) {
1437 trace_f2fs_drop_inode(inode, 1);
1438 return 1;
1439 }
1440 }
1441
531ad7d5
JK		 1442 /*
1443 * This is to avoid a deadlock condition like below.
1444 * writeback_single_inode(inode)
1445 * - f2fs_write_data_page
1446 * - f2fs_gc -> iput -> evict
1447 * - inode_wait_for_writeback(inode)
1448 */
0f18b462 1449 if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) {
06e1bc05 1450 if (!inode->i_nlink && !is_bad_inode(inode)) {
3e72f721
JK		 1451 /* to avoid evict_inode call simultaneously */
1452 atomic_inc(&inode->i_count);
06e1bc05
JK		 1453 spin_unlock(&inode->i_lock);
1454
3e72f721
JK		 1455 /* should remain fi->extent_tree for writepage */
1456 f2fs_destroy_extent_node(inode);
1457
06e1bc05 1458 sb_start_intwrite(inode->i_sb);
fc9581c8 1459 f2fs_i_size_write(inode, 0);
06e1bc05 1460
a0770e13 1461 f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
1462 inode, NULL, 0, DATA);
1463 truncate_inode_pages_final(inode->i_mapping);
1464
06e1bc05 1465 if (F2FS_HAS_BLOCKS(inode))
9a449e9c 1466 f2fs_truncate(inode);
06e1bc05
JK		 1467
1468 sb_end_intwrite(inode->i_sb);
1469
06e1bc05 1470 spin_lock(&inode->i_lock);
3e72f721 1471 atomic_dec(&inode->i_count);
06e1bc05 1472 }
b8d96a30 1473 trace_f2fs_drop_inode(inode, 0);
531ad7d5 1474 return 0;
06e1bc05 1475 }
b8d96a30 1476 ret = generic_drop_inode(inode);
8ce589c7
EB		 1477 if (!ret)
1478 ret = fscrypt_drop_inode(inode);
b8d96a30
HP		 1479 trace_f2fs_drop_inode(inode, ret);
1480 return ret;
531ad7d5
JK		 1481}
1482
7c45729a 1483int f2fs_inode_dirtied(struct inode *inode, bool sync)
b3783873 1484{
0f18b462 1485 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7c45729a 1486 int ret = 0;
0f18b462 1487
0f18b462
JK		 1488 spin_lock(&sbi->inode_lock[DIRTY_META]);
1489 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
7c45729a
JK		 1490 ret = 1;
1491 } else {
1492 set_inode_flag(inode, FI_DIRTY_INODE);
1493 stat_inc_dirty_inode(sbi, DIRTY_META);
0f18b462 1494 }
7c45729a
JK		 1495 if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) {
1496 list_add_tail(&F2FS_I(inode)->gdirty_list,
0f18b462 1497 &sbi->inode_list[DIRTY_META]);
7c45729a
JK		 1498 inc_page_count(sbi, F2FS_DIRTY_IMETA);
1499 }
338bbfa0 1500 spin_unlock(&sbi->inode_lock[DIRTY_META]);
7c45729a 1501 return ret;
0f18b462
JK		 1502}
1503
1504void f2fs_inode_synced(struct inode *inode)
1505{
1506 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1507
1508 spin_lock(&sbi->inode_lock[DIRTY_META]);
1509 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) {
1510 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1511 return;
1512 }
7c45729a
JK		 1513 if (!list_empty(&F2FS_I(inode)->gdirty_list)) {
1514 list_del_init(&F2FS_I(inode)->gdirty_list);
1515 dec_page_count(sbi, F2FS_DIRTY_IMETA);
1516 }
0f18b462 1517 clear_inode_flag(inode, FI_DIRTY_INODE);
26de9b11 1518 clear_inode_flag(inode, FI_AUTO_RECOVER);
0f18b462 1519 stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META);
338bbfa0 1520 spin_unlock(&sbi->inode_lock[DIRTY_META]);
b3783873
JK		 1521}
1522
b56ab837
JK		 1523/*
1524 * f2fs_dirty_inode() is called from __mark_inode_dirty()
1525 *
1526 * We should call set_dirty_inode to write the dirty inode through write_inode.
1527 */
1528static void f2fs_dirty_inode(struct inode *inode, int flags)
1529{
1530 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1531
1532 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1533 inode->i_ino == F2FS_META_INO(sbi))
1534 return;
1535
b56ab837
JK		 1536 if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
1537 clear_inode_flag(inode, FI_AUTO_RECOVER);
1538
7c45729a 1539 f2fs_inode_dirtied(inode, false);
b56ab837
JK		 1540}
1541
d01718a0 1542static void f2fs_free_inode(struct inode *inode)
aff063e2 1543{
2c58d548 1544 fscrypt_free_inode(inode);
aff063e2
JK		 1545 kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
1546}
1547
523be8a6
JK		 1548static void destroy_percpu_info(struct f2fs_sb_info *sbi)
1549{
513c5f37 1550 percpu_counter_destroy(&sbi->total_valid_inode_count);
47c8ebcc
JK		 1551 percpu_counter_destroy(&sbi->rf_node_block_count);
1552 percpu_counter_destroy(&sbi->alloc_valid_block_count);
523be8a6
JK		 1553}
1554
3c62be17
JK		 1555static void destroy_device_list(struct f2fs_sb_info *sbi)
1556{
1557 int i;
1558
1559 for (i = 0; i < sbi->s_ndevs; i++) {
51bf8d3c 1560 if (i > 0)
22650a99 1561 bdev_fput(FDEV(i).bdev_file);
3c62be17 1562#ifdef CONFIG_BLK_DEV_ZONED
95175daf 1563 kvfree(FDEV(i).blkz_seq);
3c62be17
JK		 1564#endif
1565 }
5222595d 1566 kvfree(sbi->devs);
3c62be17
JK		 1567}
1568
aff063e2
JK		 1569static void f2fs_put_super(struct super_block *sb)
1570{
1571 struct f2fs_sb_info *sbi = F2FS_SB(sb);
a398101a 1572 int i;
20872584 1573 int err = 0;
b1c5ef26 1574 bool done;
aff063e2 1575
99c787cf
LG		 1576 /* unregister procfs/sysfs entries in advance to avoid race case */
1577 f2fs_unregister_sysfs(sbi);
1578
0abd675e 1579 f2fs_quota_off_umount(sb);
aff063e2 1580
2658e50d
JK		 1581 /* prevent remaining shrinker jobs */
1582 mutex_lock(&sbi->umount_mutex);
1583
261eeb9c
DJ		 1584 /*
1585 * flush all issued checkpoints and stop checkpoint issue thread.
1586 * after then, all checkpoints should be done by each process context.
1587 */
1588 f2fs_stop_ckpt_thread(sbi);
1589
85dc2f2c
JK		 1590 /*
1591 * We don't need to do checkpoint when superblock is clean.
1592 * But, the previous checkpoint was not done by umount, it needs to do
1593 * clean checkpoint again.
1594 */
4354994f
DR		 1595 if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
1596 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
75ab4cb8
JK		 1597 struct cp_control cpc = {
1598 .reason = CP_UMOUNT,
1599 };
eb61c2cc 1600 stat_inc_cp_call_count(sbi, TOTAL_CALL);
20872584 1601 err = f2fs_write_checkpoint(sbi, &cpc);
75ab4cb8 1602 }
aff063e2 1603
4e6a8d9b 1604 /* be sure to wait for any on-going discard commands */
b1c5ef26
YL		 1605 done = f2fs_issue_discard_timeout(sbi);
1606 if (f2fs_realtime_discard_enable(sbi) && !sbi->discard_blks && done) {
1f43e2ad
CY		 1607 struct cp_control cpc = {
1608 .reason = CP_UMOUNT | CP_TRIMMED,
1609 };
eb61c2cc 1610 stat_inc_cp_call_count(sbi, TOTAL_CALL);
20872584 1611 err = f2fs_write_checkpoint(sbi, &cpc);
1f43e2ad
CY		 1612 }
1613
cf779cab
JK		 1614 /*
1615 * normally superblock is clean, so we need to release this.
1616 * In addition, EIO will skip do checkpoint, we need this as well.
1617 */
4d57b86d 1618 f2fs_release_ino_entry(sbi, true);
6f12ac25 1619
2658e50d
JK		 1620 f2fs_leave_shrinker(sbi);
1621 mutex_unlock(&sbi->umount_mutex);
1622
17c19120 1623 /* our cp_error case, we can wait for any writeback page */
b9109b0e 1624 f2fs_flush_merged_writes(sbi);
17c19120 1625
bf22c3cc 1626 f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
50fa53ec 1627
a4639380 1628 if (err || f2fs_cp_error(sbi)) {
20872584
CY		 1629 truncate_inode_pages_final(NODE_MAPPING(sbi));
1630 truncate_inode_pages_final(META_MAPPING(sbi));
1631 }
1632
1633 for (i = 0; i < NR_COUNT_TYPE; i++) {
1634 if (!get_pages(sbi, i))
1635 continue;
1636 f2fs_err(sbi, "detect filesystem reference count leak during "
1637 "umount, type: %d, count: %lld", i, get_pages(sbi, i));
1638 f2fs_bug_on(sbi, 1);
1639 }
1640
50fa53ec
CY		 1641 f2fs_bug_on(sbi, sbi->fsync_node_num);
1642
6ce19aff
CY		 1643 f2fs_destroy_compress_inode(sbi);
1644
aff063e2 1645 iput(sbi->node_inode);
7c77bf7d
JK		 1646 sbi->node_inode = NULL;
1647
aff063e2 1648 iput(sbi->meta_inode);
7c77bf7d 1649 sbi->meta_inode = NULL;
aff063e2 1650
60aa4d55
ST		 1651 /*
1652 * iput() can update stat information, if f2fs_write_checkpoint()
1653 * above failed with error.
1654 */
1655 f2fs_destroy_stats(sbi);
1656
aff063e2 1657 /* destroy f2fs internal modules */
4d57b86d
CY		 1658 f2fs_destroy_node_manager(sbi);
1659 f2fs_destroy_segment_manager(sbi);
aff063e2 1660
b62e71be
CY		 1661 /* flush s_error_work before sbi destroy */
1662 flush_work(&sbi->s_error_work);
1663
4c8ff709
CY		 1664 f2fs_destroy_post_read_wq(sbi);
1665
5222595d 1666 kvfree(sbi->ckpt);
a398101a 1667
43b6573b
KM		 1668 if (sbi->s_chksum_driver)
1669 crypto_free_shash(sbi->s_chksum_driver);
742532d1 1670 kfree(sbi->raw_super);
523be8a6 1671
31083031 1672 f2fs_destroy_page_array_cache(sbi);
a999150f 1673 f2fs_destroy_xattr_caches(sbi);
4b2414d0
CY		 1674#ifdef CONFIG_QUOTA
1675 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 1676 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 1677#endif
ac4acb1f 1678 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
523be8a6 1679 destroy_percpu_info(sbi);
a4b68176 1680 f2fs_destroy_iostat(sbi);
a912b54d 1681 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 1682 kvfree(sbi->write_io[i]);
5298d4bf 1683#if IS_ENABLED(CONFIG_UNICODE)
eca4873e 1684 utf8_unload(sb->s_encoding);
5aba5430 1685#endif
aff063e2
JK		 1686}
1687
1688int f2fs_sync_fs(struct super_block *sb, int sync)
1689{
1690 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c34f42e2 1691 int err = 0;
aff063e2 1692
1f227a3e
JK		 1693 if (unlikely(f2fs_cp_error(sbi)))
1694 return 0;
4354994f
DR		 1695 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1696 return 0;
1f227a3e 1697
a2a4a7e4
NJ		 1698 trace_f2fs_sync_fs(sb, sync);
1699
4b2414d0
CY		 1700 if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
1701 return -EAGAIN;
1702
eb61c2cc
CY		 1703 if (sync) {
1704 stat_inc_cp_call_count(sbi, TOTAL_CALL);
261eeb9c 1705 err = f2fs_issue_checkpoint(sbi);
eb61c2cc 1706 }
119ee914 1707
c34f42e2 1708 return err;
aff063e2
JK		 1709}
1710
d6212a5f
CL		 1711static int f2fs_freeze(struct super_block *sb)
1712{
77888c1e 1713 if (f2fs_readonly(sb))
d6212a5f
CL		 1714 return 0;
1715
b4b9d34c
JK		 1716 /* IO error happened before */
1717 if (unlikely(f2fs_cp_error(F2FS_SB(sb))))
1718 return -EIO;
1719
1720 /* must be clean, since sync_filesystem() was already called */
1721 if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
1722 return -EINVAL;
d50dfc0c 1723
c7b58576
JK		 1724 /* Let's flush checkpoints and stop the thread. */
1725 f2fs_flush_ckpt_thread(F2FS_SB(sb));
ba900534
JK		 1726
1727 /* to avoid deadlock on f2fs_evict_inode->SB_FREEZE_FS */
1728 set_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
b4b9d34c 1729 return 0;
d6212a5f
CL		 1730}
1731
1732static int f2fs_unfreeze(struct super_block *sb)
1733{
ba900534 1734 clear_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
d6212a5f
CL		 1735 return 0;
1736}
1737
ddc34e32
CY		 1738#ifdef CONFIG_QUOTA
1739static int f2fs_statfs_project(struct super_block *sb,
1740 kprojid_t projid, struct kstatfs *buf)
1741{
1742 struct kqid qid;
1743 struct dquot *dquot;
1744 u64 limit;
1745 u64 curblock;
1746
1747 qid = make_kqid_projid(projid);
1748 dquot = dqget(sb, qid);
1749 if (IS_ERR(dquot))
1750 return PTR_ERR(dquot);
955ac6e5 1751 spin_lock(&dquot->dq_dqb_lock);
ddc34e32 1752
bf2cbd3c
CX		 1753 limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit,
1754 dquot->dq_dqb.dqb_bhardlimit);
acdf2172
CX		 1755 if (limit)
1756 limit >>= sb->s_blocksize_bits;
909110c0 1757
ddc34e32 1758 if (limit && buf->f_blocks > limit) {
baaa7ebf
KK		 1759 curblock = (dquot->dq_dqb.dqb_curspace +
1760 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
ddc34e32
CY		 1761 buf->f_blocks = limit;
1762 buf->f_bfree = buf->f_bavail =
1763 (buf->f_blocks > curblock) ?
1764 (buf->f_blocks - curblock) : 0;
1765 }
1766
bf2cbd3c
CX		 1767 limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit,
1768 dquot->dq_dqb.dqb_ihardlimit);
909110c0 1769
ddc34e32
CY		 1770 if (limit && buf->f_files > limit) {
1771 buf->f_files = limit;
1772 buf->f_ffree =
1773 (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
1774 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
1775 }
1776
955ac6e5 1777 spin_unlock(&dquot->dq_dqb_lock);
ddc34e32
CY		 1778 dqput(dquot);
1779 return 0;
1780}
1781#endif
1782
aff063e2
JK		 1783static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
1784{
1785 struct super_block *sb = dentry->d_sb;
1786 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1787 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
f66c027e 1788 block_t total_count, user_block_count, start_count;
0cc091d0 1789 u64 avail_node_count;
4de85145 1790 unsigned int total_valid_node_count;
aff063e2
JK		 1791
1792 total_count = le64_to_cpu(sbi->raw_super->block_count);
aff063e2 1793 start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
aff063e2
JK		 1794 buf->f_type = F2FS_SUPER_MAGIC;
1795 buf->f_bsize = sbi->blocksize;
1796
1797 buf->f_blocks = total_count - start_count;
4de85145
ND		 1798
1799 spin_lock(&sbi->stat_lock);
1800
1801 user_block_count = sbi->user_block_count;
1802 total_valid_node_count = valid_node_count(sbi);
1803 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
f66c027e 1804 buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
80d42145 1805 sbi->current_reserved_blocks;
c9c8ed50 1806
4354994f
DR		 1807 if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
1808 buf->f_bfree = 0;
1809 else
1810 buf->f_bfree -= sbi->unusable_block_count;
c9c8ed50 1811 spin_unlock(&sbi->stat_lock);
4354994f 1812
63189b78
CY		 1813 if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
1814 buf->f_bavail = buf->f_bfree -
1815 F2FS_OPTION(sbi).root_reserved_blocks;
7e65be49
JK		 1816 else
1817 buf->f_bavail = 0;
aff063e2 1818
0cc091d0
JK		 1819 if (avail_node_count > user_block_count) {
1820 buf->f_files = user_block_count;
1821 buf->f_ffree = buf->f_bavail;
1822 } else {
1823 buf->f_files = avail_node_count;
4de85145 1824 buf->f_ffree = min(avail_node_count - total_valid_node_count,
0cc091d0
JK		 1825 buf->f_bavail);
1826 }
aff063e2 1827
5a20d339 1828 buf->f_namelen = F2FS_NAME_LEN;
6d1349c7 1829 buf->f_fsid = u64_to_fsid(id);
aff063e2 1830
ddc34e32
CY		 1831#ifdef CONFIG_QUOTA
1832 if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) &&
1833 sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
1834 f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf);
1835 }
1836#endif
aff063e2
JK		 1837 return 0;
1838}
1839
4b2414d0
CY		 1840static inline void f2fs_show_quota_options(struct seq_file *seq,
1841 struct super_block *sb)
1842{
1843#ifdef CONFIG_QUOTA
1844 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1845
63189b78 1846 if (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1847 char *fmtname = "";
1848
63189b78 1849 switch (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1850 case QFMT_VFS_OLD:
1851 fmtname = "vfsold";
1852 break;
1853 case QFMT_VFS_V0:
1854 fmtname = "vfsv0";
1855 break;
1856 case QFMT_VFS_V1:
1857 fmtname = "vfsv1";
1858 break;
1859 }
1860 seq_printf(seq, ",jqfmt=%s", fmtname);
1861 }
1862
63189b78
CY		 1863 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
1864 seq_show_option(seq, "usrjquota",
1865 F2FS_OPTION(sbi).s_qf_names[USRQUOTA]);
4b2414d0 1866
63189b78
CY		 1867 if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
1868 seq_show_option(seq, "grpjquota",
1869 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]);
4b2414d0 1870
63189b78
CY		 1871 if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
1872 seq_show_option(seq, "prjjquota",
1873 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]);
4b2414d0
CY		 1874#endif
1875}
1876
cd6ee739 1877#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1878static inline void f2fs_show_compress_options(struct seq_file *seq,
1879 struct super_block *sb)
1880{
1881 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1882 char *algtype = "";
1883 int i;
1884
1885 if (!f2fs_sb_has_compression(sbi))
1886 return;
1887
1888 switch (F2FS_OPTION(sbi).compress_algorithm) {
1889 case COMPRESS_LZO:
1890 algtype = "lzo";
1891 break;
1892 case COMPRESS_LZ4:
1893 algtype = "lz4";
1894 break;
50cfa66f
CY		 1895 case COMPRESS_ZSTD:
1896 algtype = "zstd";
1897 break;
6d92b201
CY		 1898 case COMPRESS_LZORLE:
1899 algtype = "lzo-rle";
1900 break;
4c8ff709
CY		 1901 }
1902 seq_printf(seq, ",compress_algorithm=%s", algtype);
1903
3fde13f8
CY		 1904 if (F2FS_OPTION(sbi).compress_level)
1905 seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level);
1906
4c8ff709
CY		 1907 seq_printf(seq, ",compress_log_size=%u",
1908 F2FS_OPTION(sbi).compress_log_size);
1909
1910 for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
1911 seq_printf(seq, ",compress_extension=%s",
1912 F2FS_OPTION(sbi).extensions[i]);
1913 }
b28f047b 1914
151b1982
FC		 1915 for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) {
1916 seq_printf(seq, ",nocompress_extension=%s",
1917 F2FS_OPTION(sbi).noextensions[i]);
1918 }
1919
b28f047b
CY		 1920 if (F2FS_OPTION(sbi).compress_chksum)
1921 seq_puts(seq, ",compress_chksum");
602a16d5
DJ		 1922
1923 if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS)
1924 seq_printf(seq, ",compress_mode=%s", "fs");
1925 else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
1926 seq_printf(seq, ",compress_mode=%s", "user");
6ce19aff
CY		 1927
1928 if (test_opt(sbi, COMPRESS_CACHE))
1929 seq_puts(seq, ",compress_cache");
4c8ff709 1930}
cd6ee739 1931#endif
4c8ff709 1932
aff063e2
JK		 1933static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
1934{
1935 struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
1936
bbbc34fd
CY		 1937 if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
1938 seq_printf(seq, ",background_gc=%s", "sync");
1939 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
1940 seq_printf(seq, ",background_gc=%s", "on");
1941 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
696c018c 1942 seq_printf(seq, ",background_gc=%s", "off");
bbbc34fd 1943
5911d2d1
CY		 1944 if (test_opt(sbi, GC_MERGE))
1945 seq_puts(seq, ",gc_merge");
04d7a7ae
YL		 1946 else
1947 seq_puts(seq, ",nogc_merge");
5911d2d1 1948
aff063e2
JK		 1949 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
1950 seq_puts(seq, ",disable_roll_forward");
a9117eca
CY		 1951 if (test_opt(sbi, NORECOVERY))
1952 seq_puts(seq, ",norecovery");
2381a685 1953 if (test_opt(sbi, DISCARD)) {
aff063e2 1954 seq_puts(seq, ",discard");
2381a685
YL		 1955 if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK)
1956 seq_printf(seq, ",discard_unit=%s", "block");
1957 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
1958 seq_printf(seq, ",discard_unit=%s", "segment");
1959 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
1960 seq_printf(seq, ",discard_unit=%s", "section");
1961 } else {
81621f97 1962 seq_puts(seq, ",nodiscard");
2381a685 1963 }
aff063e2
JK		 1964#ifdef CONFIG_F2FS_FS_XATTR
1965 if (test_opt(sbi, XATTR_USER))
1966 seq_puts(seq, ",user_xattr");
1967 else
1968 seq_puts(seq, ",nouser_xattr");
444c580f
JK		 1969 if (test_opt(sbi, INLINE_XATTR))
1970 seq_puts(seq, ",inline_xattr");
23cf7212
CY		 1971 else
1972 seq_puts(seq, ",noinline_xattr");
6afc662e
CY		 1973 if (test_opt(sbi, INLINE_XATTR_SIZE))
1974 seq_printf(seq, ",inline_xattr_size=%u",
63189b78 1975 F2FS_OPTION(sbi).inline_xattr_size);
aff063e2
JK		 1976#endif
1977#ifdef CONFIG_F2FS_FS_POSIX_ACL
1978 if (test_opt(sbi, POSIX_ACL))
1979 seq_puts(seq, ",acl");
1980 else
1981 seq_puts(seq, ",noacl");
1982#endif
1983 if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
aa43507f 1984 seq_puts(seq, ",disable_ext_identify");
8274de77
HL		 1985 if (test_opt(sbi, INLINE_DATA))
1986 seq_puts(seq, ",inline_data");
75342797
WL		 1987 else
1988 seq_puts(seq, ",noinline_data");
5efd3c6f
CY		 1989 if (test_opt(sbi, INLINE_DENTRY))
1990 seq_puts(seq, ",inline_dentry");
97c1794a
CY		 1991 else
1992 seq_puts(seq, ",noinline_dentry");
967eaad1 1993 if (test_opt(sbi, FLUSH_MERGE))
6b4afdd7 1994 seq_puts(seq, ",flush_merge");
967eaad1
YL		 1995 else
1996 seq_puts(seq, ",noflush_merge");
0f7b2abd
JK		 1997 if (test_opt(sbi, NOBARRIER))
1998 seq_puts(seq, ",nobarrier");
6047de54
YL		 1999 else
2000 seq_puts(seq, ",barrier");
d5053a34
JK		 2001 if (test_opt(sbi, FASTBOOT))
2002 seq_puts(seq, ",fastboot");
12607c1b 2003 if (test_opt(sbi, READ_EXTENT_CACHE))
89672159 2004 seq_puts(seq, ",extent_cache");
7daaea25
JK		 2005 else
2006 seq_puts(seq, ",noextent_cache");
71644dff
JK		 2007 if (test_opt(sbi, AGE_EXTENT_CACHE))
2008 seq_puts(seq, ",age_extent_cache");
343f40f0
CY		 2009 if (test_opt(sbi, DATA_FLUSH))
2010 seq_puts(seq, ",data_flush");
36abef4e
JK		 2011
2012 seq_puts(seq, ",mode=");
b0332a0f 2013 if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
36abef4e 2014 seq_puts(seq, "adaptive");
b0332a0f 2015 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
36abef4e 2016 seq_puts(seq, "lfs");
6691d940
DJ		 2017 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG)
2018 seq_puts(seq, "fragment:segment");
2019 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK)
2020 seq_puts(seq, "fragment:block");
63189b78 2021 seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
7e65be49 2022 if (test_opt(sbi, RESERVE_ROOT))
7c2e5963 2023 seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
63189b78
CY		 2024 F2FS_OPTION(sbi).root_reserved_blocks,
2025 from_kuid_munged(&init_user_ns,
2026 F2FS_OPTION(sbi).s_resuid),
2027 from_kgid_munged(&init_user_ns,
2028 F2FS_OPTION(sbi).s_resgid));
0cc0dec2 2029#ifdef CONFIG_F2FS_FAULT_INJECTION
d494500a 2030 if (test_opt(sbi, FAULT_INJECTION)) {
44529f89 2031 seq_printf(seq, ",fault_injection=%u",
63189b78 2032 F2FS_OPTION(sbi).fault_info.inject_rate);
d494500a
CY		 2033 seq_printf(seq, ",fault_type=%u",
2034 F2FS_OPTION(sbi).fault_info.inject_type);
2035 }
0cc0dec2 2036#endif
0abd675e 2037#ifdef CONFIG_QUOTA
4b2414d0
CY		 2038 if (test_opt(sbi, QUOTA))
2039 seq_puts(seq, ",quota");
0abd675e
CY		 2040 if (test_opt(sbi, USRQUOTA))
2041 seq_puts(seq, ",usrquota");
2042 if (test_opt(sbi, GRPQUOTA))
2043 seq_puts(seq, ",grpquota");
5c57132e
CY		 2044 if (test_opt(sbi, PRJQUOTA))
2045 seq_puts(seq, ",prjquota");
0cc0dec2 2046#endif
4b2414d0 2047 f2fs_show_quota_options(seq, sbi->sb);
ed318a6c
EB		 2048
2049 fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb);
aff063e2 2050
27aacd28
ST		 2051 if (sbi->sb->s_flags & SB_INLINECRYPT)
2052 seq_puts(seq, ",inlinecrypt");
2053
63189b78 2054 if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
07939627 2055 seq_printf(seq, ",alloc_mode=%s", "default");
63189b78 2056 else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
07939627 2057 seq_printf(seq, ",alloc_mode=%s", "reuse");
93cf93f1 2058
4354994f 2059 if (test_opt(sbi, DISABLE_CHECKPOINT))
4d3aed70
DR		 2060 seq_printf(seq, ",checkpoint=disable:%u",
2061 F2FS_OPTION(sbi).unusable_cap);
261eeb9c
DJ		 2062 if (test_opt(sbi, MERGE_CHECKPOINT))
2063 seq_puts(seq, ",checkpoint_merge");
2064 else
2065 seq_puts(seq, ",nocheckpoint_merge");
63189b78 2066 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
93cf93f1 2067 seq_printf(seq, ",fsync_mode=%s", "posix");
63189b78 2068 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
93cf93f1 2069 seq_printf(seq, ",fsync_mode=%s", "strict");
dc132802
ST		 2070 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
2071 seq_printf(seq, ",fsync_mode=%s", "nobarrier");
4c8ff709 2072
1f0b067b 2073#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 2074 f2fs_show_compress_options(seq, sbi->sb);
1f0b067b 2075#endif
093749e2
CY		 2076
2077 if (test_opt(sbi, ATGC))
2078 seq_puts(seq, ",atgc");
4f993264 2079
7a8fc586
DJ		 2080 if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_NORMAL)
2081 seq_printf(seq, ",memory=%s", "normal");
2082 else if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW)
2083 seq_printf(seq, ",memory=%s", "low");
2084
b62e71be
CY		 2085 if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_READONLY)
2086 seq_printf(seq, ",errors=%s", "remount-ro");
2087 else if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_CONTINUE)
2088 seq_printf(seq, ",errors=%s", "continue");
2089 else if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_PANIC)
2090 seq_printf(seq, ",errors=%s", "panic");
2091
aff063e2
JK		 2092 return 0;
2093}
2094
458c15df 2095static void default_options(struct f2fs_sb_info *sbi, bool remount)
498c5e9f
YH		 2096{
2097 /* init some FS parameters */
458c15df
CY		 2098 if (!remount) {
2099 set_opt(sbi, READ_EXTENT_CACHE);
2100 clear_opt(sbi, DISABLE_CHECKPOINT);
2101
2102 if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
2103 set_opt(sbi, DISCARD);
2104
2105 if (f2fs_sb_has_blkzoned(sbi))
2106 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
2107 else
2108 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
2109 }
2110
a7d9fe3c
JK		 2111 if (f2fs_sb_has_readonly(sbi))
2112 F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE;
2113 else
2114 F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;
2115
63189b78 2116 F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
b7ad23ce
YG		 2117 if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_main) <=
2118 SMALL_VOLUME_SEGMENTS)
2119 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
2120 else
2121 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
63189b78 2122 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
0aa7e0f8
CY		 2123 F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
2124 F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
c2c14ca5
YL		 2125 if (f2fs_sb_has_compression(sbi)) {
2126 F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
2127 F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
2128 F2FS_OPTION(sbi).compress_ext_cnt = 0;
2129 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
2130 }
bbbc34fd 2131 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
7a8fc586 2132 F2FS_OPTION(sbi).memory_mode = MEMORY_MODE_NORMAL;
b62e71be 2133 F2FS_OPTION(sbi).errors = MOUNT_ERRORS_CONTINUE;
498c5e9f 2134
27aacd28
ST		 2135 sbi->sb->s_flags &= ~SB_INLINECRYPT;
2136
39133a50 2137 set_opt(sbi, INLINE_XATTR);
498c5e9f 2138 set_opt(sbi, INLINE_DATA);
97c1794a 2139 set_opt(sbi, INLINE_DENTRY);
b5d15199 2140 set_opt(sbi, MERGE_CHECKPOINT);
4d3aed70 2141 F2FS_OPTION(sbi).unusable_cap = 0;
1751e8a6 2142 sbi->sb->s_flags |= SB_LAZYTIME;
ed8ac22b 2143 if (!f2fs_is_readonly(sbi))
967eaad1 2144 set_opt(sbi, FLUSH_MERGE);
458c15df 2145 if (f2fs_sb_has_blkzoned(sbi))
b0332a0f 2146 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
458c15df 2147 else
b0332a0f 2148 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
498c5e9f
YH		 2149
2150#ifdef CONFIG_F2FS_FS_XATTR
2151 set_opt(sbi, XATTR_USER);
2152#endif
2153#ifdef CONFIG_F2FS_FS_POSIX_ACL
2154 set_opt(sbi, POSIX_ACL);
2155#endif
36dbd328 2156
d494500a 2157 f2fs_build_fault_attr(sbi, 0, 0);
498c5e9f
YH		 2158}
2159
ea676733
JK		 2160#ifdef CONFIG_QUOTA
2161static int f2fs_enable_quotas(struct super_block *sb);
2162#endif
4354994f
DR		 2163
2164static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
2165{
812a9597 2166 unsigned int s_flags = sbi->sb->s_flags;
4354994f 2167 struct cp_control cpc;
2880f47b 2168 unsigned int gc_mode = sbi->gc_mode;
812a9597
JK		 2169 int err = 0;
2170 int ret;
4d3aed70 2171 block_t unusable;
4354994f 2172
812a9597 2173 if (s_flags & SB_RDONLY) {
dcbb4c10 2174 f2fs_err(sbi, "checkpoint=disable on readonly fs");
812a9597
JK		 2175 return -EINVAL;
2176 }
4354994f
DR		 2177 sbi->sb->s_flags |= SB_ACTIVE;
2178
2880f47b
WG		 2179 /* check if we need more GC first */
2180 unusable = f2fs_get_unusable_blocks(sbi);
2181 if (!f2fs_disable_cp_again(sbi, unusable))
2182 goto skip_gc;
2183
4354994f
DR		 2184 f2fs_update_time(sbi, DISABLE_TIME);
2185
98e92867
CY		 2186 sbi->gc_mode = GC_URGENT_HIGH;
2187
4354994f 2188 while (!f2fs_time_over(sbi, DISABLE_TIME)) {
d147ea4a
JK		 2189 struct f2fs_gc_control gc_control = {
2190 .victim_segno = NULL_SEGNO,
2191 .init_gc_type = FG_GC,
2192 .should_migrate_blocks = false,
c81d5bae 2193 .err_gc_skipped = true,
de252407 2194 .no_bg_gc = true,
c81d5bae 2195 .nr_free_secs = 1 };
d147ea4a 2196
e4544b63 2197 f2fs_down_write(&sbi->gc_lock);
9bf1dcbd 2198 stat_inc_gc_call_count(sbi, FOREGROUND);
d147ea4a 2199 err = f2fs_gc(sbi, &gc_control);
812a9597
JK		 2200 if (err == -ENODATA) {
2201 err = 0;
4354994f 2202 break;
812a9597 2203 }
8f31b466 2204 if (err && err != -EAGAIN)
812a9597 2205 break;
4354994f 2206 }
4354994f 2207
812a9597
JK		 2208 ret = sync_filesystem(sbi->sb);
2209 if (ret || err) {
5f029c04 2210 err = ret ? ret : err;
812a9597
JK		 2211 goto restore_flag;
2212 }
4354994f 2213
4d3aed70
DR		 2214 unusable = f2fs_get_unusable_blocks(sbi);
2215 if (f2fs_disable_cp_again(sbi, unusable)) {
812a9597
JK		 2216 err = -EAGAIN;
2217 goto restore_flag;
2218 }
4354994f 2219
2880f47b 2220skip_gc:
e4544b63 2221 f2fs_down_write(&sbi->gc_lock);
4354994f
DR		 2222 cpc.reason = CP_PAUSE;
2223 set_sbi_flag(sbi, SBI_CP_DISABLED);
eb61c2cc 2224 stat_inc_cp_call_count(sbi, TOTAL_CALL);
896285ad
CY		 2225 err = f2fs_write_checkpoint(sbi, &cpc);
2226 if (err)
2227 goto out_unlock;
4354994f 2228
c9c8ed50 2229 spin_lock(&sbi->stat_lock);
4d3aed70 2230 sbi->unusable_block_count = unusable;
c9c8ed50
CY		 2231 spin_unlock(&sbi->stat_lock);
2232
896285ad 2233out_unlock:
e4544b63 2234 f2fs_up_write(&sbi->gc_lock);
812a9597 2235restore_flag:
98e92867 2236 sbi->gc_mode = gc_mode;
7a88ddb5 2237 sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
812a9597 2238 return err;
4354994f
DR		 2239}
2240
2241static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
2242{
dddd3d65
JK		 2243 int retry = DEFAULT_RETRY_IO_COUNT;
2244
b0ff4fe7 2245 /* we should flush all the data to keep data consistency */
dddd3d65
JK		 2246 do {
2247 sync_inodes_sb(sbi->sb);
a64239d0 2248 f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
dddd3d65
JK		 2249 } while (get_pages(sbi, F2FS_DIRTY_DATA) && retry--);
2250
2251 if (unlikely(retry < 0))
2252 f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
b0ff4fe7 2253
e4544b63 2254 f2fs_down_write(&sbi->gc_lock);
4354994f
DR		 2255 f2fs_dirty_to_prefree(sbi);
2256
2257 clear_sbi_flag(sbi, SBI_CP_DISABLED);
2258 set_sbi_flag(sbi, SBI_IS_DIRTY);
e4544b63 2259 f2fs_up_write(&sbi->gc_lock);
4354994f
DR		 2260
2261 f2fs_sync_fs(sbi->sb, 1);
4f99484d
JK		 2262
2263 /* Let's ensure there's no pending checkpoint anymore */
2264 f2fs_flush_ckpt_thread(sbi);
4354994f
DR		 2265}
2266
696c018c
NJ		 2267static int f2fs_remount(struct super_block *sb, int *flags, char *data)
2268{
2269 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2270 struct f2fs_mount_info org_mount_opt;
0abd675e 2271 unsigned long old_sb_flags;
63189b78 2272 int err;
3fd97359 2273 bool need_restart_gc = false, need_stop_gc = false;
3fd97359 2274 bool need_restart_flush = false, need_stop_flush = false;
4d674904 2275 bool need_restart_discard = false, need_stop_discard = false;
1e7bef5f 2276 bool need_enable_checkpoint = false, need_disable_checkpoint = false;
12607c1b 2277 bool no_read_extent_cache = !test_opt(sbi, READ_EXTENT_CACHE);
71644dff 2278 bool no_age_extent_cache = !test_opt(sbi, AGE_EXTENT_CACHE);
277afbde 2279 bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
093749e2 2280 bool no_atgc = !test_opt(sbi, ATGC);
4d674904 2281 bool no_discard = !test_opt(sbi, DISCARD);
6ce19aff 2282 bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
4f993264 2283 bool block_unit_discard = f2fs_block_unit_discard(sbi);
4b2414d0 2284#ifdef CONFIG_QUOTA
4b2414d0
CY		 2285 int i, j;
2286#endif
696c018c
NJ		 2287
2288 /*
2289 * Save the old mount options in case we
2290 * need to restore them.
2291 */
2292 org_mount_opt = sbi->mount_opt;
0abd675e 2293 old_sb_flags = sb->s_flags;
696c018c 2294
4b2414d0 2295#ifdef CONFIG_QUOTA
63189b78 2296 org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt;
4b2414d0 2297 for (i = 0; i < MAXQUOTAS; i++) {
63189b78
CY		 2298 if (F2FS_OPTION(sbi).s_qf_names[i]) {
2299 org_mount_opt.s_qf_names[i] =
2300 kstrdup(F2FS_OPTION(sbi).s_qf_names[i],
2301 GFP_KERNEL);
2302 if (!org_mount_opt.s_qf_names[i]) {
4b2414d0 2303 for (j = 0; j < i; j++)
ba87a45c 2304 kfree(org_mount_opt.s_qf_names[j]);
4b2414d0
CY		 2305 return -ENOMEM;
2306 }
2307 } else {
63189b78 2308 org_mount_opt.s_qf_names[i] = NULL;
4b2414d0
CY		 2309 }
2310 }
2311#endif
2312
df728b0f 2313 /* recover superblocks we couldn't write due to previous RO mount */
1751e8a6 2314 if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
df728b0f 2315 err = f2fs_commit_super(sbi, false);
dcbb4c10
JP		 2316 f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
2317 err);
df728b0f
JK		 2318 if (!err)
2319 clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
2320 }
2321
458c15df 2322 default_options(sbi, true);
26666c8a 2323
696c018c 2324 /* parse mount options */
ed318a6c 2325 err = parse_options(sb, data, true);
696c018c
NJ		 2326 if (err)
2327 goto restore_opts;
2328
b62e71be
CY		 2329 /* flush outstanding errors before changing fs state */
2330 flush_work(&sbi->s_error_work);
2331
696c018c
NJ		 2332 /*
2333 * Previous and new state of filesystem is RO,
876dc59e 2334 * so skip checking GC and FLUSH_MERGE conditions.
696c018c 2335 */
1751e8a6 2336 if (f2fs_readonly(sb) && (*flags & SB_RDONLY))
696c018c
NJ		 2337 goto skip;
2338
d78dfefc 2339 if (f2fs_dev_is_readonly(sbi) && !(*flags & SB_RDONLY)) {
a7d9fe3c
JK		 2340 err = -EROFS;
2341 goto restore_opts;
2342 }
2343
ea676733 2344#ifdef CONFIG_QUOTA
1751e8a6 2345 if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) {
0abd675e
CY		 2346 err = dquot_suspend(sb, -1);
2347 if (err < 0)
2348 goto restore_opts;
4354994f 2349 } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
0abd675e 2350 /* dquot_resume needs RW */
1751e8a6 2351 sb->s_flags &= ~SB_RDONLY;
ea676733
JK		 2352 if (sb_any_quota_suspended(sb)) {
2353 dquot_resume(sb, -1);
7beb01f7 2354 } else if (f2fs_sb_has_quota_ino(sbi)) {
ea676733
JK		 2355 err = f2fs_enable_quotas(sb);
2356 if (err)
2357 goto restore_opts;
2358 }
0abd675e 2359 }
ea676733 2360#endif
c5bf8348
YL		 2361 if (f2fs_lfs_mode(sbi) && !IS_F2FS_IPU_DISABLE(sbi)) {
2362 err = -EINVAL;
2363 f2fs_warn(sbi, "LFS is not compatible with IPU");
2364 goto restore_opts;
2365 }
2366
093749e2
CY		 2367 /* disallow enable atgc dynamically */
2368 if (no_atgc == !!test_opt(sbi, ATGC)) {
2369 err = -EINVAL;
2370 f2fs_warn(sbi, "switch atgc option is not allowed");
2371 goto restore_opts;
2372 }
2373
9cd81ce3 2374 /* disallow enable/disable extent_cache dynamically */
12607c1b 2375 if (no_read_extent_cache == !!test_opt(sbi, READ_EXTENT_CACHE)) {
9cd81ce3 2376 err = -EINVAL;
dcbb4c10 2377 f2fs_warn(sbi, "switch extent_cache option is not allowed");
9cd81ce3
CY		 2378 goto restore_opts;
2379 }
71644dff
JK		 2380 /* disallow enable/disable age extent_cache dynamically */
2381 if (no_age_extent_cache == !!test_opt(sbi, AGE_EXTENT_CACHE)) {
2382 err = -EINVAL;
2383 f2fs_warn(sbi, "switch age_extent_cache option is not allowed");
2384 goto restore_opts;
2385 }
9cd81ce3 2386
6ce19aff
CY		 2387 if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) {
2388 err = -EINVAL;
2389 f2fs_warn(sbi, "switch compress_cache option is not allowed");
2390 goto restore_opts;
2391 }
2392
4f993264
CY		 2393 if (block_unit_discard != f2fs_block_unit_discard(sbi)) {
2394 err = -EINVAL;
2395 f2fs_warn(sbi, "switch discard_unit option is not allowed");
2396 goto restore_opts;
2397 }
2398
4354994f
DR		 2399 if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
2400 err = -EINVAL;
dcbb4c10 2401 f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
4354994f
DR		 2402 goto restore_opts;
2403 }
2404
696c018c
NJ		 2405 /*
2406 * We stop the GC thread if FS is mounted as RO
2407 * or if background_gc = off is passed in mount
2408 * option. Also sync the filesystem.
2409 */
bbbc34fd 2410 if ((*flags & SB_RDONLY) ||
5911d2d1
CY		 2411 (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF &&
2412 !test_opt(sbi, GC_MERGE))) {
696c018c 2413 if (sbi->gc_thread) {
4d57b86d 2414 f2fs_stop_gc_thread(sbi);
876dc59e 2415 need_restart_gc = true;
696c018c 2416 }
aba291b3 2417 } else if (!sbi->gc_thread) {
4d57b86d 2418 err = f2fs_start_gc_thread(sbi);
696c018c
NJ		 2419 if (err)
2420 goto restore_opts;
876dc59e
GZ		 2421 need_stop_gc = true;
2422 }
2423
930e2607 2424 if (*flags & SB_RDONLY) {
faa0e55b
JK		 2425 sync_inodes_sb(sb);
2426
2427 set_sbi_flag(sbi, SBI_IS_DIRTY);
2428 set_sbi_flag(sbi, SBI_IS_CLOSE);
2429 f2fs_sync_fs(sb, 1);
2430 clear_sbi_flag(sbi, SBI_IS_CLOSE);
2431 }
2432
876dc59e
GZ		 2433 /*
2434 * We stop issue flush thread if FS is mounted as RO
2435 * or if flush_merge is not passed in mount option.
2436 */
1751e8a6 2437 if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) {
5eba8c5d 2438 clear_opt(sbi, FLUSH_MERGE);
4d57b86d 2439 f2fs_destroy_flush_cmd_control(sbi, false);
3fd97359 2440 need_restart_flush = true;
5eba8c5d 2441 } else {
4d57b86d 2442 err = f2fs_create_flush_cmd_control(sbi);
2163d198 2443 if (err)
1e7bef5f 2444 goto restore_gc;
3fd97359 2445 need_stop_flush = true;
696c018c 2446 }
3fd97359 2447
4d674904
FC		 2448 if (no_discard == !!test_opt(sbi, DISCARD)) {
2449 if (test_opt(sbi, DISCARD)) {
2450 err = f2fs_start_discard_thread(sbi);
2451 if (err)
2452 goto restore_flush;
2453 need_stop_discard = true;
2454 } else {
4d674904 2455 f2fs_stop_discard_thread(sbi);
25547439 2456 f2fs_issue_discard_timeout(sbi);
4d674904
FC		 2457 need_restart_discard = true;
2458 }
2459 }
2460
277afbde 2461 if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
3fd97359
CY		 2462 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
2463 err = f2fs_disable_checkpoint(sbi);
2464 if (err)
4d674904 2465 goto restore_discard;
1e7bef5f 2466 need_enable_checkpoint = true;
3fd97359
CY		 2467 } else {
2468 f2fs_enable_checkpoint(sbi);
1e7bef5f
DJ		 2469 need_disable_checkpoint = true;
2470 }
2471 }
2472
2473 /*
2474 * Place this routine at the end, since a new checkpoint would be
2475 * triggered while remount and we need to take care of it before
2476 * returning from remount.
2477 */
2478 if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) ||
2479 !test_opt(sbi, MERGE_CHECKPOINT)) {
2480 f2fs_stop_ckpt_thread(sbi);
2481 } else {
2482 /* Flush if the prevous checkpoint, if exists. */
2483 f2fs_flush_ckpt_thread(sbi);
2484
2485 err = f2fs_start_ckpt_thread(sbi);
2486 if (err) {
2487 f2fs_err(sbi,
2488 "Failed to start F2FS issue_checkpoint_thread (%d)",
2489 err);
2490 goto restore_checkpoint;
3fd97359
CY		 2491 }
2492 }
2493
696c018c 2494skip:
4b2414d0
CY		 2495#ifdef CONFIG_QUOTA
2496 /* Release old quota file names */
2497 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 2498 kfree(org_mount_opt.s_qf_names[i]);
4b2414d0 2499#endif
696c018c 2500 /* Update the POSIXACL Flag */
1751e8a6
LT		 2501 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
2502 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
df728b0f 2503
7e65be49 2504 limit_reserve_root(sbi);
1ae18f71 2505 adjust_unusable_cap_perc(sbi);
095680f2 2506 *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
696c018c 2507 return 0;
1e7bef5f
DJ		 2508restore_checkpoint:
2509 if (need_enable_checkpoint) {
2510 f2fs_enable_checkpoint(sbi);
2511 } else if (need_disable_checkpoint) {
2512 if (f2fs_disable_checkpoint(sbi))
2513 f2fs_warn(sbi, "checkpoint has not been disabled");
2514 }
4d674904
FC		 2515restore_discard:
2516 if (need_restart_discard) {
2517 if (f2fs_start_discard_thread(sbi))
2518 f2fs_warn(sbi, "discard has been stopped");
2519 } else if (need_stop_discard) {
2520 f2fs_stop_discard_thread(sbi);
2521 }
3fd97359
CY		 2522restore_flush:
2523 if (need_restart_flush) {
2524 if (f2fs_create_flush_cmd_control(sbi))
2525 f2fs_warn(sbi, "background flush thread has stopped");
2526 } else if (need_stop_flush) {
2527 clear_opt(sbi, FLUSH_MERGE);
2528 f2fs_destroy_flush_cmd_control(sbi, false);
2529 }
876dc59e
GZ		 2530restore_gc:
2531 if (need_restart_gc) {
4d57b86d 2532 if (f2fs_start_gc_thread(sbi))
dcbb4c10 2533 f2fs_warn(sbi, "background gc thread has stopped");
876dc59e 2534 } else if (need_stop_gc) {
4d57b86d 2535 f2fs_stop_gc_thread(sbi);
876dc59e 2536 }
696c018c 2537restore_opts:
4b2414d0 2538#ifdef CONFIG_QUOTA
63189b78 2539 F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
4b2414d0 2540 for (i = 0; i < MAXQUOTAS; i++) {
ba87a45c 2541 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
63189b78 2542 F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
4b2414d0
CY		 2543 }
2544#endif
696c018c 2545 sbi->mount_opt = org_mount_opt;
0abd675e 2546 sb->s_flags = old_sb_flags;
696c018c
NJ		 2547 return err;
2548}
2549
0abd675e 2550#ifdef CONFIG_QUOTA
e1bb7d3d
CY		 2551static bool f2fs_need_recovery(struct f2fs_sb_info *sbi)
2552{
2553 /* need to recovery orphan */
2554 if (is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG))
2555 return true;
2556 /* need to recovery data */
2557 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
2558 return false;
2559 if (test_opt(sbi, NORECOVERY))
2560 return false;
2561 return !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG);
2562}
2563
2564static bool f2fs_recover_quota_begin(struct f2fs_sb_info *sbi)
2565{
2566 bool readonly = f2fs_readonly(sbi->sb);
2567
2568 if (!f2fs_need_recovery(sbi))
2569 return false;
2570
2571 /* it doesn't need to check f2fs_sb_has_readonly() */
2572 if (f2fs_hw_is_readonly(sbi))
2573 return false;
2574
2575 if (readonly) {
2576 sbi->sb->s_flags &= ~SB_RDONLY;
2577 set_sbi_flag(sbi, SBI_IS_WRITABLE);
2578 }
2579
2580 /*
2581 * Turn on quotas which were not enabled for read-only mounts if
2582 * filesystem has quota feature, so that they are updated correctly.
2583 */
2584 return f2fs_enable_quota_files(sbi, readonly);
2585}
2586
2587static void f2fs_recover_quota_end(struct f2fs_sb_info *sbi,
2588 bool quota_enabled)
2589{
2590 if (quota_enabled)
2591 f2fs_quota_off_umount(sbi->sb);
2592
2593 if (is_sbi_flag_set(sbi, SBI_IS_WRITABLE)) {
2594 clear_sbi_flag(sbi, SBI_IS_WRITABLE);
2595 sbi->sb->s_flags |= SB_RDONLY;
2596 }
2597}
2598
0abd675e
CY		 2599/* Read data from quotafile */
2600static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
2601 size_t len, loff_t off)
2602{
2603 struct inode *inode = sb_dqopt(sb)->files[type];
2604 struct address_space *mapping = inode->i_mapping;
2605 block_t blkidx = F2FS_BYTES_TO_BLK(off);
2606 int offset = off & (sb->s_blocksize - 1);
2607 int tocopy;
2608 size_t toread;
2609 loff_t i_size = i_size_read(inode);
2610 struct page *page;
0abd675e
CY		 2611
2612 if (off > i_size)
2613 return 0;
2614
2615 if (off + len > i_size)
2616 len = i_size - off;
2617 toread = len;
2618 while (toread > 0) {
2619 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
2620repeat:
02117b8a 2621 page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
4e46a023
JK		 2622 if (IS_ERR(page)) {
2623 if (PTR_ERR(page) == -ENOMEM) {
4034247a 2624 memalloc_retry_wait(GFP_NOFS);
4e46a023
JK		 2625 goto repeat;
2626 }
af033b2a 2627 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2628 return PTR_ERR(page);
4e46a023 2629 }
0abd675e
CY		 2630
2631 lock_page(page);
2632
2633 if (unlikely(page->mapping != mapping)) {
2634 f2fs_put_page(page, 1);
2635 goto repeat;
2636 }
2637 if (unlikely(!PageUptodate(page))) {
2638 f2fs_put_page(page, 1);
af033b2a 2639 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e
CY		 2640 return -EIO;
2641 }
2642
b87846bd 2643 memcpy_from_page(data, page, offset, tocopy);
0abd675e
CY		 2644 f2fs_put_page(page, 1);
2645
2646 offset = 0;
2647 toread -= tocopy;
2648 data += tocopy;
2649 blkidx++;
2650 }
2651 return len;
2652}
2653
2654/* Write to quotafile */
2655static ssize_t f2fs_quota_write(struct super_block *sb, int type,
2656 const char *data, size_t len, loff_t off)
2657{
2658 struct inode *inode = sb_dqopt(sb)->files[type];
2659 struct address_space *mapping = inode->i_mapping;
2660 const struct address_space_operations *a_ops = mapping->a_ops;
2661 int offset = off & (sb->s_blocksize - 1);
2662 size_t towrite = len;
2663 struct page *page;
62f63eea 2664 void *fsdata = NULL;
0abd675e
CY		 2665 int err = 0;
2666 int tocopy;
2667
2668 while (towrite > 0) {
2669 tocopy = min_t(unsigned long, sb->s_blocksize - offset,
2670 towrite);
4e46a023 2671retry:
9d6b0cd7 2672 err = a_ops->write_begin(NULL, mapping, off, tocopy,
62f63eea 2673 &page, &fsdata);
4e46a023
JK		 2674 if (unlikely(err)) {
2675 if (err == -ENOMEM) {
a64239d0 2676 f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2677 goto retry;
2678 }
af033b2a 2679 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2680 break;
4e46a023 2681 }
0abd675e 2682
b87846bd 2683 memcpy_to_page(page, offset, data, tocopy);
0abd675e
CY		 2684
2685 a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
62f63eea 2686 page, fsdata);
0abd675e
CY		 2687 offset = 0;
2688 towrite -= tocopy;
2689 off += tocopy;
2690 data += tocopy;
2691 cond_resched();
2692 }
2693
2694 if (len == towrite)
6e5b5d41 2695 return err;
11cc6426 2696 inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
0abd675e
CY		 2697 f2fs_mark_inode_dirty_sync(inode, false);
2698 return len - towrite;
2699}
2700
10a26878
CY		 2701int f2fs_dquot_initialize(struct inode *inode)
2702{
c40e15a9 2703 if (time_to_inject(F2FS_I_SB(inode), FAULT_DQUOT_INIT))
10a26878 2704 return -ESRCH;
10a26878
CY		 2705
2706 return dquot_initialize(inode);
2707}
2708
ccb49011 2709static struct dquot __rcu **f2fs_get_dquots(struct inode *inode)
0abd675e
CY		 2710{
2711 return F2FS_I(inode)->i_dquot;
2712}
2713
2714static qsize_t *f2fs_get_reserved_space(struct inode *inode)
2715{
2716 return &F2FS_I(inode)->i_reserved_quota;
2717}
2718
4b2414d0
CY		 2719static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
2720{
af033b2a 2721 if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2722 f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
af033b2a
CY		 2723 return 0;
2724 }
2725
63189b78
CY		 2726 return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
2727 F2FS_OPTION(sbi).s_jquota_fmt, type);
4b2414d0
CY		 2728}
2729
ea676733 2730int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
4b2414d0 2731{
ea676733
JK		 2732 int enabled = 0;
2733 int i, err;
2734
7beb01f7 2735 if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
ea676733
JK		 2736 err = f2fs_enable_quotas(sbi->sb);
2737 if (err) {
dcbb4c10 2738 f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
ea676733
JK		 2739 return 0;
2740 }
2741 return 1;
2742 }
4b2414d0
CY		 2743
2744 for (i = 0; i < MAXQUOTAS; i++) {
63189b78 2745 if (F2FS_OPTION(sbi).s_qf_names[i]) {
ea676733
JK		 2746 err = f2fs_quota_on_mount(sbi, i);
2747 if (!err) {
2748 enabled = 1;
2749 continue;
2750 }
dcbb4c10
JP		 2751 f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
2752 err, i);
4b2414d0
CY		 2753 }
2754 }
ea676733
JK		 2755 return enabled;
2756}
2757
2758static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
2759 unsigned int flags)
2760{
2761 struct inode *qf_inode;
2762 unsigned long qf_inum;
ccf3ff2b 2763 unsigned long qf_flag = F2FS_QUOTA_DEFAULT_FL;
ea676733
JK		 2764 int err;
2765
7beb01f7 2766 BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
ea676733
JK		 2767
2768 qf_inum = f2fs_qf_ino(sb, type);
2769 if (!qf_inum)
2770 return -EPERM;
2771
2772 qf_inode = f2fs_iget(sb, qf_inum);
2773 if (IS_ERR(qf_inode)) {
dcbb4c10 2774 f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
ea676733
JK		 2775 return PTR_ERR(qf_inode);
2776 }
2777
2778 /* Don't account quota for quota files to avoid recursion */
90b7c4b7 2779 inode_lock(qf_inode);
ea676733 2780 qf_inode->i_flags |= S_NOQUOTA;
90b7c4b7
CY		 2781
2782 if ((F2FS_I(qf_inode)->i_flags & qf_flag) != qf_flag) {
2783 F2FS_I(qf_inode)->i_flags |= qf_flag;
2784 f2fs_set_inode_flags(qf_inode);
2785 }
2786 inode_unlock(qf_inode);
2787
7212b95e 2788 err = dquot_load_quota_inode(qf_inode, type, format_id, flags);
ea676733
JK		 2789 iput(qf_inode);
2790 return err;
2791}
2792
2793static int f2fs_enable_quotas(struct super_block *sb)
2794{
dcbb4c10 2795 struct f2fs_sb_info *sbi = F2FS_SB(sb);
ea676733
JK		 2796 int type, err = 0;
2797 unsigned long qf_inum;
2798 bool quota_mopt[MAXQUOTAS] = {
dcbb4c10
JP		 2799 test_opt(sbi, USRQUOTA),
2800 test_opt(sbi, GRPQUOTA),
2801 test_opt(sbi, PRJQUOTA),
ea676733
JK		 2802 };
2803
af033b2a 2804 if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2805 f2fs_err(sbi, "quota file may be corrupted, skip loading it");
af033b2a
CY		 2806 return 0;
2807 }
2808
2809 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
2810
ea676733
JK		 2811 for (type = 0; type < MAXQUOTAS; type++) {
2812 qf_inum = f2fs_qf_ino(sb, type);
2813 if (qf_inum) {
2814 err = f2fs_quota_enable(sb, type, QFMT_VFS_V1,
2815 DQUOT_USAGE_ENABLED |
2816 (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
2817 if (err) {
dcbb4c10
JP		 2818 f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
2819 type, err);
ea676733
JK		 2820 for (type--; type >= 0; type--)
2821 dquot_quota_off(sb, type);
af033b2a
CY		 2822 set_sbi_flag(F2FS_SB(sb),
2823 SBI_QUOTA_NEED_REPAIR);
ea676733
JK		 2824 return err;
2825 }
4b2414d0
CY		 2826 }
2827 }
ea676733 2828 return 0;
4b2414d0
CY		 2829}
2830
9de71ede
CY		 2831static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type)
2832{
2833 struct quota_info *dqopt = sb_dqopt(sbi->sb);
2834 struct address_space *mapping = dqopt->files[type]->i_mapping;
2835 int ret = 0;
2836
2837 ret = dquot_writeback_dquots(sbi->sb, type);
2838 if (ret)
2839 goto out;
2840
2841 ret = filemap_fdatawrite(mapping);
2842 if (ret)
2843 goto out;
2844
2845 /* if we are using journalled quota */
2846 if (is_journalled_quota(sbi))
2847 goto out;
2848
2849 ret = filemap_fdatawait(mapping);
2850
2851 truncate_inode_pages(&dqopt->files[type]->i_data, 0);
2852out:
2853 if (ret)
2854 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2855 return ret;
2856}
2857
af033b2a 2858int f2fs_quota_sync(struct super_block *sb, int type)
0abd675e 2859{
af033b2a 2860 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0abd675e
CY		 2861 struct quota_info *dqopt = sb_dqopt(sb);
2862 int cnt;
680af5b8 2863 int ret = 0;
0abd675e 2864
0abd675e
CY		 2865 /*
2866 * Now when everything is written we can discard the pagecache so
2867 * that userspace sees the changes.
2868 */
2869 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
af033b2a 2870
0abd675e
CY		 2871 if (type != -1 && cnt != type)
2872 continue;
0abd675e 2873
680af5b8
JP		 2874 if (!sb_has_quota_active(sb, cnt))
2875 continue;
af033b2a 2876
6213f5d4
JK		 2877 if (!f2fs_sb_has_quota_ino(sbi))
2878 inode_lock(dqopt->files[cnt]);
af033b2a 2879
9de71ede
CY		 2880 /*
2881 * do_quotactl
2882 * f2fs_quota_sync
e4544b63 2883 * f2fs_down_read(quota_sem)
9de71ede
CY		 2884 * dquot_writeback_dquots()
2885 * f2fs_dquot_commit
2886 * block_operation
e4544b63 2887 * f2fs_down_read(quota_sem)
9de71ede
CY		 2888 */
2889 f2fs_lock_op(sbi);
e4544b63 2890 f2fs_down_read(&sbi->quota_sem);
af033b2a 2891
9de71ede
CY		 2892 ret = f2fs_quota_sync_file(sbi, cnt);
2893
e4544b63 2894 f2fs_up_read(&sbi->quota_sem);
9de71ede 2895 f2fs_unlock_op(sbi);
0abd675e 2896
6213f5d4
JK		 2897 if (!f2fs_sb_has_quota_ino(sbi))
2898 inode_unlock(dqopt->files[cnt]);
9de71ede
CY		 2899
2900 if (ret)
2901 break;
0abd675e 2902 }
af033b2a 2903 return ret;
0abd675e
CY		 2904}
2905
2906static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
2907 const struct path *path)
2908{
2909 struct inode *inode;
2910 int err;
2911
fe973b06
CY		 2912 /* if quota sysfile exists, deny enabling quota with specific file */
2913 if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
2914 f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
2915 return -EBUSY;
2916 }
2917
5079e1c0
CY		 2918 if (path->dentry->d_sb != sb)
2919 return -EXDEV;
2920
9a20d391 2921 err = f2fs_quota_sync(sb, type);
0abd675e
CY		 2922 if (err)
2923 return err;
2924
5079e1c0
CY		 2925 inode = d_inode(path->dentry);
2926
2927 err = filemap_fdatawrite(inode->i_mapping);
0abd675e
CY		 2928 if (err)
2929 return err;
2930
5079e1c0
CY		 2931 err = filemap_fdatawait(inode->i_mapping);
2932 if (err)
2933 return err;
2934
2935 err = dquot_quota_on(sb, type, format_id, path);
2936 if (err)
2937 return err;
0abd675e
CY		 2938
2939 inode_lock(inode);
ccf3ff2b 2940 F2FS_I(inode)->i_flags |= F2FS_QUOTA_DEFAULT_FL;
9149a5eb 2941 f2fs_set_inode_flags(inode);
0abd675e
CY		 2942 inode_unlock(inode);
2943 f2fs_mark_inode_dirty_sync(inode, false);
2944
2945 return 0;
2946}
2947
fe973b06 2948static int __f2fs_quota_off(struct super_block *sb, int type)
0abd675e
CY		 2949{
2950 struct inode *inode = sb_dqopt(sb)->files[type];
2951 int err;
2952
2953 if (!inode || !igrab(inode))
2954 return dquot_quota_off(sb, type);
2955
cda9cc59
YH		 2956 err = f2fs_quota_sync(sb, type);
2957 if (err)
2958 goto out_put;
0abd675e
CY		 2959
2960 err = dquot_quota_off(sb, type);
7beb01f7 2961 if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
0abd675e
CY		 2962 goto out_put;
2963
2964 inode_lock(inode);
ccf3ff2b 2965 F2FS_I(inode)->i_flags &= ~F2FS_QUOTA_DEFAULT_FL;
9149a5eb 2966 f2fs_set_inode_flags(inode);
0abd675e
CY		 2967 inode_unlock(inode);
2968 f2fs_mark_inode_dirty_sync(inode, false);
2969out_put:
2970 iput(inode);
2971 return err;
2972}
2973
fe973b06
CY		 2974static int f2fs_quota_off(struct super_block *sb, int type)
2975{
2976 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2977 int err;
2978
2979 err = __f2fs_quota_off(sb, type);
2980
2981 /*
2982 * quotactl can shutdown journalled quota, result in inconsistence
2983 * between quota record and fs data by following updates, tag the
2984 * flag to let fsck be aware of it.
2985 */
2986 if (is_journalled_quota(sbi))
2987 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2988 return err;
2989}
2990
4b2414d0 2991void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2992{
2993 int type;
cda9cc59
YH		 2994 int err;
2995
2996 for (type = 0; type < MAXQUOTAS; type++) {
fe973b06 2997 err = __f2fs_quota_off(sb, type);
cda9cc59
YH		 2998 if (err) {
2999 int ret = dquot_quota_off(sb, type);
0abd675e 3000
dcbb4c10
JP		 3001 f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
3002 type, err, ret);
af033b2a 3003 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
cda9cc59
YH		 3004 }
3005 }
0e0667b6
JK		 3006 /*
3007 * In case of checkpoint=disable, we must flush quota blocks.
3008 * This can cause NULL exception for node_inode in end_io, since
3009 * put_super already dropped it.
3010 */
3011 sync_filesystem(sb);
0abd675e
CY		 3012}
3013
26b5a079
SY		 3014static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
3015{
3016 struct quota_info *dqopt = sb_dqopt(sb);
3017 int type;
3018
3019 for (type = 0; type < MAXQUOTAS; type++) {
3020 if (!dqopt->files[type])
3021 continue;
3022 f2fs_inode_synced(dqopt->files[type]);
3023 }
3024}
3025
af033b2a
CY		 3026static int f2fs_dquot_commit(struct dquot *dquot)
3027{
db6ec53b 3028 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 3029 int ret;
3030
e4544b63 3031 f2fs_down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
af033b2a
CY		 3032 ret = dquot_commit(dquot);
3033 if (ret < 0)
db6ec53b 3034 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
e4544b63 3035 f2fs_up_read(&sbi->quota_sem);
af033b2a
CY		 3036 return ret;
3037}
3038
3039static int f2fs_dquot_acquire(struct dquot *dquot)
3040{
db6ec53b 3041 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 3042 int ret;
3043
e4544b63 3044 f2fs_down_read(&sbi->quota_sem);
af033b2a
CY		 3045 ret = dquot_acquire(dquot);
3046 if (ret < 0)
db6ec53b 3047 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
e4544b63 3048 f2fs_up_read(&sbi->quota_sem);
af033b2a
CY		 3049 return ret;
3050}
3051
3052static int f2fs_dquot_release(struct dquot *dquot)
3053{
db6ec53b 3054 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
2c4e0c52 3055 int ret = dquot_release(dquot);
af033b2a 3056
af033b2a 3057 if (ret < 0)
db6ec53b 3058 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 3059 return ret;
3060}
3061
3062static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
3063{
3064 struct super_block *sb = dquot->dq_sb;
3065 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 3066 int ret = dquot_mark_dquot_dirty(dquot);
af033b2a
CY		 3067
3068 /* if we are using journalled quota */
3069 if (is_journalled_quota(sbi))
3070 set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
3071
3072 return ret;
3073}
3074
3075static int f2fs_dquot_commit_info(struct super_block *sb, int type)
3076{
db6ec53b 3077 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 3078 int ret = dquot_commit_info(sb, type);
af033b2a 3079
af033b2a 3080 if (ret < 0)
db6ec53b 3081 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 3082 return ret;
3083}
26b5a079 3084
94b1e10e 3085static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
5c57132e
CY		 3086{
3087 *projid = F2FS_I(inode)->i_projid;
3088 return 0;
3089}
3090
0abd675e
CY		 3091static const struct dquot_operations f2fs_quota_operations = {
3092 .get_reserved_space = f2fs_get_reserved_space,
af033b2a
CY		 3093 .write_dquot = f2fs_dquot_commit,
3094 .acquire_dquot = f2fs_dquot_acquire,
3095 .release_dquot = f2fs_dquot_release,
3096 .mark_dirty = f2fs_dquot_mark_dquot_dirty,
3097 .write_info = f2fs_dquot_commit_info,
0abd675e
CY		 3098 .alloc_dquot = dquot_alloc,
3099 .destroy_dquot = dquot_destroy,
5c57132e 3100 .get_projid = f2fs_get_projid,
0abd675e
CY		 3101 .get_next_id = dquot_get_next_id,
3102};
3103
3104static const struct quotactl_ops f2fs_quotactl_ops = {
3105 .quota_on = f2fs_quota_on,
3106 .quota_off = f2fs_quota_off,
3107 .quota_sync = f2fs_quota_sync,
3108 .get_state = dquot_get_state,
3109 .set_info = dquot_set_dqinfo,
3110 .get_dqblk = dquot_get_dqblk,
3111 .set_dqblk = dquot_set_dqblk,
3112 .get_nextdqblk = dquot_get_next_dqblk,
3113};
3114#else
10a26878
CY		 3115int f2fs_dquot_initialize(struct inode *inode)
3116{
3117 return 0;
3118}
3119
af033b2a
CY		 3120int f2fs_quota_sync(struct super_block *sb, int type)
3121{
3122 return 0;
3123}
3124
4b2414d0 3125void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 3126{
3127}
3128#endif
3129
f62fc9f9 3130static const struct super_operations f2fs_sops = {
aff063e2 3131 .alloc_inode = f2fs_alloc_inode,
d01718a0 3132 .free_inode = f2fs_free_inode,
531ad7d5 3133 .drop_inode = f2fs_drop_inode,
aff063e2 3134 .write_inode = f2fs_write_inode,
b3783873 3135 .dirty_inode = f2fs_dirty_inode,
aff063e2 3136 .show_options = f2fs_show_options,
0abd675e
CY		 3137#ifdef CONFIG_QUOTA
3138 .quota_read = f2fs_quota_read,
3139 .quota_write = f2fs_quota_write,
3140 .get_dquots = f2fs_get_dquots,
3141#endif
aff063e2
JK		 3142 .evict_inode = f2fs_evict_inode,
3143 .put_super = f2fs_put_super,
3144 .sync_fs = f2fs_sync_fs,
d6212a5f
CL		 3145 .freeze_fs = f2fs_freeze,
3146 .unfreeze_fs = f2fs_unfreeze,
aff063e2 3147 .statfs = f2fs_statfs,
696c018c 3148 .remount_fs = f2fs_remount,
aff063e2
JK		 3149};
3150
643fa961 3151#ifdef CONFIG_FS_ENCRYPTION
0b81d077
JK		 3152static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
3153{
3154 return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
3155 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
3156 ctx, len, NULL);
3157}
3158
3159static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
3160 void *fs_data)
3161{
b7c409de
SY		 3162 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3163
3164 /*
3165 * Encrypting the root directory is not allowed because fsck
3166 * expects lost+found directory to exist and remain unencrypted
3167 * if LOST_FOUND feature is enabled.
3168 *
3169 */
7beb01f7 3170 if (f2fs_sb_has_lost_found(sbi) &&
b7c409de
SY		 3171 inode->i_ino == F2FS_ROOT_INO(sbi))
3172 return -EPERM;
3173
0b81d077
JK		 3174 return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
3175 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
3176 ctx, len, fs_data, XATTR_CREATE);
3177}
3178
ac4acb1f 3179static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb)
ff62af20 3180{
ac4acb1f 3181 return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy;
ff62af20
SY		 3182}
3183
0eee17e3
EB		 3184static bool f2fs_has_stable_inodes(struct super_block *sb)
3185{
3186 return true;
3187}
3188
0e91fc1e
CH		 3189static struct block_device **f2fs_get_devices(struct super_block *sb,
3190 unsigned int *num_devs)
27aacd28
ST		 3191{
3192 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0e91fc1e
CH		 3193 struct block_device **devs;
3194 int i;
27aacd28 3195
0e91fc1e
CH		 3196 if (!f2fs_is_multi_device(sbi))
3197 return NULL;
27aacd28 3198
0e91fc1e
CH		 3199 devs = kmalloc_array(sbi->s_ndevs, sizeof(*devs), GFP_KERNEL);
3200 if (!devs)
3201 return ERR_PTR(-ENOMEM);
27aacd28
ST		 3202
3203 for (i = 0; i < sbi->s_ndevs; i++)
0e91fc1e
CH		 3204 devs[i] = FDEV(i).bdev;
3205 *num_devs = sbi->s_ndevs;
3206 return devs;
27aacd28
ST		 3207}
3208
6f69f0ed 3209static const struct fscrypt_operations f2fs_cryptops = {
40e13e18 3210 .needs_bounce_pages = 1,
7a0263dc 3211 .has_32bit_inodes = 1,
5b118884 3212 .supports_subblock_data_units = 1,
5970fbad 3213 .legacy_key_prefix = "f2fs:",
0eee17e3
EB		 3214 .get_context = f2fs_get_context,
3215 .set_context = f2fs_set_context,
ac4acb1f 3216 .get_dummy_policy = f2fs_get_dummy_policy,
0eee17e3 3217 .empty_dir = f2fs_empty_dir,
0eee17e3 3218 .has_stable_inodes = f2fs_has_stable_inodes,
27aacd28 3219 .get_devices = f2fs_get_devices,
0b81d077 3220};
0b81d077
JK		 3221#endif
3222
aff063e2
JK		 3223static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
3224 u64 ino, u32 generation)
3225{
3226 struct f2fs_sb_info *sbi = F2FS_SB(sb);
3227 struct inode *inode;
3228
4d57b86d 3229 if (f2fs_check_nid_range(sbi, ino))
910bb12d 3230 return ERR_PTR(-ESTALE);
aff063e2
JK		 3231
3232 /*
3233 * f2fs_iget isn't quite right if the inode is currently unallocated!
3234 * However f2fs_iget currently does appropriate checks to handle stale
3235 * inodes so everything is OK.
3236 */
3237 inode = f2fs_iget(sb, ino);
3238 if (IS_ERR(inode))
3239 return ERR_CAST(inode);
6bacf52f 3240 if (unlikely(generation && inode->i_generation != generation)) {
aff063e2
JK		 3241 /* we didn't find the right inode.. */
3242 iput(inode);
3243 return ERR_PTR(-ESTALE);
3244 }
3245 return inode;
3246}
3247
3248static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
3249 int fh_len, int fh_type)
3250{
3251 return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
3252 f2fs_nfs_get_inode);
3253}
3254
3255static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid,
3256 int fh_len, int fh_type)
3257{
3258 return generic_fh_to_parent(sb, fid, fh_len, fh_type,
3259 f2fs_nfs_get_inode);
3260}
3261
3262static const struct export_operations f2fs_export_ops = {
e21fc203 3263 .encode_fh = generic_encode_ino32_fh,
aff063e2
JK		 3264 .fh_to_dentry = f2fs_fh_to_dentry,
3265 .fh_to_parent = f2fs_fh_to_parent,
3266 .get_parent = f2fs_get_parent,
3267};
3268
6d1451bf 3269loff_t max_file_blocks(struct inode *inode)
aff063e2 3270{
7a2af766 3271 loff_t result = 0;
6d1451bf 3272 loff_t leaf_count;
aff063e2 3273
7a2af766
CY		 3274 /*
3275 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
6afc662e 3276 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
7a2af766
CY		 3277 * space in inode.i_addr, it will be more safe to reassign
3278 * result as zero.
3279 */
3280
6d1451bf
CX		 3281 if (inode && f2fs_compressed_file(inode))
3282 leaf_count = ADDRS_PER_BLOCK(inode);
3283 else
3284 leaf_count = DEF_ADDRS_PER_BLOCK;
3285
aff063e2
JK		 3286 /* two direct node blocks */
3287 result += (leaf_count * 2);
3288
3289 /* two indirect node blocks */
3290 leaf_count *= NIDS_PER_BLOCK;
3291 result += (leaf_count * 2);
3292
3293 /* one double indirect node block */
3294 leaf_count *= NIDS_PER_BLOCK;
3295 result += leaf_count;
3296
a6a010f5
DR		 3297 /*
3298 * For compatibility with FSCRYPT_POLICY_FLAG_IV_INO_LBLK_{64,32} with
3299 * a 4K crypto data unit, we must restrict the max filesize to what can
3300 * fit within U32_MAX + 1 data units.
3301 */
3302
3303 result = min(result, (((loff_t)U32_MAX + 1) * 4096) >> F2FS_BLKSIZE_BITS);
3304
aff063e2
JK		 3305 return result;
3306}
3307
fd694733
JK		 3308static int __f2fs_commit_super(struct buffer_head *bh,
3309 struct f2fs_super_block *super)
3310{
3311 lock_buffer(bh);
3312 if (super)
3313 memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
fd694733
JK		 3314 set_buffer_dirty(bh);
3315 unlock_buffer(bh);
3316
3317 /* it's rare case, we can do fua all the time */
3adc5fcb 3318 return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
fd694733
JK		 3319}
3320
df728b0f 3321static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
fd694733 3322 struct buffer_head *bh)
9a59b62f 3323{
fd694733
JK		 3324 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3325 (bh->b_data + F2FS_SUPER_OFFSET);
df728b0f 3326 struct super_block *sb = sbi->sb;
9a59b62f
CY		 3327 u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
3328 u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
3329 u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
3330 u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
3331 u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
3332 u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
3333 u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
3334 u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
3335 u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
3336 u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
3337 u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
3338 u32 segment_count = le32_to_cpu(raw_super->segment_count);
3339 u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
fd694733
JK		 3340 u64 main_end_blkaddr = main_blkaddr +
3341 (segment_count_main << log_blocks_per_seg);
3342 u64 seg_end_blkaddr = segment0_blkaddr +
3343 (segment_count << log_blocks_per_seg);
9a59b62f
CY		 3344
3345 if (segment0_blkaddr != cp_blkaddr) {
dcbb4c10
JP		 3346 f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
3347 segment0_blkaddr, cp_blkaddr);
9a59b62f
CY		 3348 return true;
3349 }
3350
3351 if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
3352 sit_blkaddr) {
dcbb4c10
JP		 3353 f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
3354 cp_blkaddr, sit_blkaddr,
3355 segment_count_ckpt << log_blocks_per_seg);
9a59b62f
CY		 3356 return true;
3357 }
3358
3359 if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
3360 nat_blkaddr) {
dcbb4c10
JP		 3361 f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
3362 sit_blkaddr, nat_blkaddr,
3363 segment_count_sit << log_blocks_per_seg);
9a59b62f
CY		 3364 return true;
3365 }
3366
3367 if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
3368 ssa_blkaddr) {
dcbb4c10
JP		 3369 f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
3370 nat_blkaddr, ssa_blkaddr,
3371 segment_count_nat << log_blocks_per_seg);
9a59b62f
CY		 3372 return true;
3373 }
3374
3375 if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
3376 main_blkaddr) {
dcbb4c10
JP		 3377 f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
3378 ssa_blkaddr, main_blkaddr,
3379 segment_count_ssa << log_blocks_per_seg);
9a59b62f
CY		 3380 return true;
3381 }
3382
fd694733 3383 if (main_end_blkaddr > seg_end_blkaddr) {
d89f5891
WX		 3384 f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)",
3385 main_blkaddr, seg_end_blkaddr,
dcbb4c10 3386 segment_count_main << log_blocks_per_seg);
9a59b62f 3387 return true;
fd694733
JK		 3388 } else if (main_end_blkaddr < seg_end_blkaddr) {
3389 int err = 0;
3390 char *res;
3391
3392 /* fix in-memory information all the time */
3393 raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
3394 segment0_blkaddr) >> log_blocks_per_seg);
3395
68f0453d 3396 if (f2fs_readonly(sb) || f2fs_hw_is_readonly(sbi)) {
df728b0f 3397 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
fd694733
JK		 3398 res = "internally";
3399 } else {
3400 err = __f2fs_commit_super(bh, NULL);
3401 res = err ? "failed" : "done";
3402 }
d89f5891
WX		 3403 f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)",
3404 res, main_blkaddr, seg_end_blkaddr,
dcbb4c10 3405 segment_count_main << log_blocks_per_seg);
fd694733
JK		 3406 if (err)
3407 return true;
9a59b62f 3408 }
9a59b62f
CY		 3409 return false;
3410}
3411
df728b0f 3412static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
fd694733 3413 struct buffer_head *bh)
aff063e2 3414{
f99ba9ad 3415 block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main;
0cfe75c5 3416 block_t total_sections, blocks_per_seg;
fd694733
JK		 3417 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3418 (bh->b_data + F2FS_SUPER_OFFSET);
d440c52d
JZ		 3419 size_t crc_offset = 0;
3420 __u32 crc = 0;
3421
38fb6d0e
IZ		 3422 if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
3423 f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
3424 F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
3425 return -EINVAL;
3426 }
3427
d440c52d 3428 /* Check checksum_offset and crc in superblock */
7beb01f7 3429 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
d440c52d
JZ		 3430 crc_offset = le32_to_cpu(raw_super->checksum_offset);
3431 if (crc_offset !=
3432 offsetof(struct f2fs_super_block, crc)) {
dcbb4c10
JP		 3433 f2fs_info(sbi, "Invalid SB checksum offset: %zu",
3434 crc_offset);
38fb6d0e 3435 return -EFSCORRUPTED;
d440c52d
JZ		 3436 }
3437 crc = le32_to_cpu(raw_super->crc);
3438 if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
dcbb4c10 3439 f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
38fb6d0e 3440 return -EFSCORRUPTED;
d440c52d
JZ		 3441 }
3442 }
aff063e2 3443
aff063e2 3444 /* Currently, support only 4KB block size */
e584bbe8
CY		 3445 if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) {
3446 f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u",
3447 le32_to_cpu(raw_super->log_blocksize),
3448 F2FS_BLKSIZE_BITS);
38fb6d0e 3449 return -EFSCORRUPTED;
a07ef784 3450 }
5c9b4692 3451
9a59b62f
CY		 3452 /* check log blocks per segment */
3453 if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
dcbb4c10
JP		 3454 f2fs_info(sbi, "Invalid log blocks per segment (%u)",
3455 le32_to_cpu(raw_super->log_blocks_per_seg));
38fb6d0e 3456 return -EFSCORRUPTED;
9a59b62f
CY		 3457 }
3458
d7e9a903 3459 /* Currently, support 512/1024/2048/4096/16K bytes sector size */
55cf9cb6
CY		 3460 if (le32_to_cpu(raw_super->log_sectorsize) >
3461 F2FS_MAX_LOG_SECTOR_SIZE ||
3462 le32_to_cpu(raw_super->log_sectorsize) <
3463 F2FS_MIN_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3464 f2fs_info(sbi, "Invalid log sectorsize (%u)",
3465 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3466 return -EFSCORRUPTED;
a07ef784 3467 }
55cf9cb6
CY		 3468 if (le32_to_cpu(raw_super->log_sectors_per_block) +
3469 le32_to_cpu(raw_super->log_sectorsize) !=
3470 F2FS_MAX_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3471 f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
3472 le32_to_cpu(raw_super->log_sectors_per_block),
3473 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3474 return -EFSCORRUPTED;
a07ef784 3475 }
9a59b62f 3476
0cfe75c5 3477 segment_count = le32_to_cpu(raw_super->segment_count);
f99ba9ad 3478 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
0cfe75c5
JK		 3479 segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3480 secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3481 total_sections = le32_to_cpu(raw_super->section_count);
3482
3483 /* blocks_per_seg should be 512, given the above check */
447286eb 3484 blocks_per_seg = BIT(le32_to_cpu(raw_super->log_blocks_per_seg));
0cfe75c5
JK		 3485
3486 if (segment_count > F2FS_MAX_SEGMENT ||
3487 segment_count < F2FS_MIN_SEGMENTS) {
dcbb4c10 3488 f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
38fb6d0e 3489 return -EFSCORRUPTED;
0cfe75c5
JK		 3490 }
3491
f99ba9ad 3492 if (total_sections > segment_count_main || total_sections < 1 ||
0cfe75c5 3493 segs_per_sec > segment_count || !segs_per_sec) {
dcbb4c10
JP		 3494 f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
3495 segment_count, total_sections, segs_per_sec);
38fb6d0e 3496 return -EFSCORRUPTED;
0cfe75c5
JK		 3497 }
3498
3a22e9ac
CY		 3499 if (segment_count_main != total_sections * segs_per_sec) {
3500 f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)",
3501 segment_count_main, total_sections, segs_per_sec);
3502 return -EFSCORRUPTED;
3503 }
3504
0cfe75c5 3505 if ((segment_count / segs_per_sec) < total_sections) {
dcbb4c10
JP		 3506 f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
3507 segment_count, segs_per_sec, total_sections);
38fb6d0e 3508 return -EFSCORRUPTED;
0cfe75c5
JK		 3509 }
3510
88960068 3511 if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
dcbb4c10
JP		 3512 f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
3513 segment_count, le64_to_cpu(raw_super->block_count));
38fb6d0e 3514 return -EFSCORRUPTED;
0cfe75c5
JK		 3515 }
3516
9f701f6c
QS		 3517 if (RDEV(0).path[0]) {
3518 block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
3519 int i = 1;
3520
3521 while (i < MAX_DEVICES && RDEV(i).path[0]) {
3522 dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
3523 i++;
3524 }
3525 if (segment_count != dev_seg_count) {
3526 f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
3527 segment_count, dev_seg_count);
3528 return -EFSCORRUPTED;
3529 }
07eb1d69
CY		 3530 } else {
3531 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) &&
3532 !bdev_is_zoned(sbi->sb->s_bdev)) {
3533 f2fs_info(sbi, "Zoned block device path is missing");
3534 return -EFSCORRUPTED;
3535 }
9f701f6c
QS		 3536 }
3537
42bf546c 3538 if (secs_per_zone > total_sections || !secs_per_zone) {
dcbb4c10
JP		 3539 f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
3540 secs_per_zone, total_sections);
38fb6d0e 3541 return -EFSCORRUPTED;
0cfe75c5
JK		 3542 }
3543 if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
3544 raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
3545 (le32_to_cpu(raw_super->extension_count) +
3546 raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
dcbb4c10
JP		 3547 f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
3548 le32_to_cpu(raw_super->extension_count),
3549 raw_super->hot_ext_count,
3550 F2FS_MAX_EXTENSION);
38fb6d0e 3551 return -EFSCORRUPTED;
0cfe75c5
JK		 3552 }
3553
65ddf656
CY		 3554 if (le32_to_cpu(raw_super->cp_payload) >=
3555 (blocks_per_seg - F2FS_CP_PACKS -
3556 NR_CURSEG_PERSIST_TYPE)) {
3557 f2fs_info(sbi, "Insane cp_payload (%u >= %u)",
dcbb4c10 3558 le32_to_cpu(raw_super->cp_payload),
65ddf656
CY		 3559 blocks_per_seg - F2FS_CP_PACKS -
3560 NR_CURSEG_PERSIST_TYPE);
38fb6d0e 3561 return -EFSCORRUPTED;
0cfe75c5
JK		 3562 }
3563
9a59b62f
CY		 3564 /* check reserved ino info */
3565 if (le32_to_cpu(raw_super->node_ino) != 1 ||
3566 le32_to_cpu(raw_super->meta_ino) != 2 ||
3567 le32_to_cpu(raw_super->root_ino) != 3) {
dcbb4c10
JP		 3568 f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
3569 le32_to_cpu(raw_super->node_ino),
3570 le32_to_cpu(raw_super->meta_ino),
3571 le32_to_cpu(raw_super->root_ino));
38fb6d0e 3572 return -EFSCORRUPTED;
9a59b62f
CY		 3573 }
3574
3575 /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
df728b0f 3576 if (sanity_check_area_boundary(sbi, bh))
38fb6d0e 3577 return -EFSCORRUPTED;
9a59b62f 3578
aff063e2
JK		 3579 return 0;
3580}
3581
4d57b86d 3582int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
aff063e2
JK		 3583{
3584 unsigned int total, fsmeta;
577e3495
JK		 3585 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
3586 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2040fce8 3587 unsigned int ovp_segments, reserved_segments;
15d3042a 3588 unsigned int main_segs, blocks_per_seg;
c77ec61c
CY		 3589 unsigned int sit_segs, nat_segs;
3590 unsigned int sit_bitmap_size, nat_bitmap_size;
3591 unsigned int log_blocks_per_seg;
9dc956b2 3592 unsigned int segment_count_main;
e494c2f9 3593 unsigned int cp_pack_start_sum, cp_payload;
7b63f72f
CY		 3594 block_t user_block_count, valid_user_blocks;
3595 block_t avail_node_count, valid_node_count;
65ddf656 3596 unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks;
042be0f8 3597 int i, j;
aff063e2
JK		 3598
3599 total = le32_to_cpu(raw_super->segment_count);
3600 fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
c77ec61c
CY		 3601 sit_segs = le32_to_cpu(raw_super->segment_count_sit);
3602 fsmeta += sit_segs;
3603 nat_segs = le32_to_cpu(raw_super->segment_count_nat);
3604 fsmeta += nat_segs;
aff063e2
JK		 3605 fsmeta += le32_to_cpu(ckpt->rsvd_segment_count);
3606 fsmeta += le32_to_cpu(raw_super->segment_count_ssa);
3607
6bacf52f 3608 if (unlikely(fsmeta >= total))
aff063e2 3609 return 1;
577e3495 3610
2040fce8
JK		 3611 ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
3612 reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count);
3613
a7d9fe3c
JK		 3614 if (!f2fs_sb_has_readonly(sbi) &&
3615 unlikely(fsmeta < F2FS_MIN_META_SEGMENTS ||
2040fce8 3616 ovp_segments == 0 || reserved_segments == 0)) {
dcbb4c10 3617 f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
2040fce8
JK		 3618 return 1;
3619 }
9dc956b2 3620 user_block_count = le64_to_cpu(ckpt->user_block_count);
a7d9fe3c
JK		 3621 segment_count_main = le32_to_cpu(raw_super->segment_count_main) +
3622 (f2fs_sb_has_readonly(sbi) ? 1 : 0);
9dc956b2
CY		 3623 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3624 if (!user_block_count || user_block_count >=
3625 segment_count_main << log_blocks_per_seg) {
dcbb4c10
JP		 3626 f2fs_err(sbi, "Wrong user_block_count: %u",
3627 user_block_count);
9dc956b2
CY		 3628 return 1;
3629 }
3630
7b63f72f
CY		 3631 valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
3632 if (valid_user_blocks > user_block_count) {
dcbb4c10
JP		 3633 f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
3634 valid_user_blocks, user_block_count);
7b63f72f
CY		 3635 return 1;
3636 }
3637
3638 valid_node_count = le32_to_cpu(ckpt->valid_node_count);
27cae0bc 3639 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
7b63f72f 3640 if (valid_node_count > avail_node_count) {
dcbb4c10
JP		 3641 f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
3642 valid_node_count, avail_node_count);
7b63f72f
CY		 3643 return 1;
3644 }
3645
15d3042a 3646 main_segs = le32_to_cpu(raw_super->segment_count_main);
a60108f7 3647 blocks_per_seg = BLKS_PER_SEG(sbi);
15d3042a
JQ		 3648
3649 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
3650 if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
3651 le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
3652 return 1;
a7d9fe3c
JK		 3653
3654 if (f2fs_sb_has_readonly(sbi))
3655 goto check_data;
3656
042be0f8
CY		 3657 for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
3658 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3659 le32_to_cpu(ckpt->cur_node_segno[j])) {
dcbb4c10
JP		 3660 f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
3661 i, j,
3662 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3663 return 1;
3664 }
3665 }
15d3042a 3666 }
a7d9fe3c 3667check_data:
15d3042a
JQ		 3668 for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
3669 if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
3670 le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
3671 return 1;
a7d9fe3c
JK		 3672
3673 if (f2fs_sb_has_readonly(sbi))
3674 goto skip_cross;
3675
042be0f8
CY		 3676 for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
3677 if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
3678 le32_to_cpu(ckpt->cur_data_segno[j])) {
dcbb4c10
JP		 3679 f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
3680 i, j,
3681 le32_to_cpu(ckpt->cur_data_segno[i]));
042be0f8
CY		 3682 return 1;
3683 }
3684 }
3685 }
3686 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
1166c1f2 3687 for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
042be0f8
CY		 3688 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3689 le32_to_cpu(ckpt->cur_data_segno[j])) {
1166c1f2 3690 f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
dcbb4c10
JP		 3691 i, j,
3692 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3693 return 1;
3694 }
3695 }
15d3042a 3696 }
a7d9fe3c 3697skip_cross:
c77ec61c
CY		 3698 sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
3699 nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
c77ec61c
CY		 3700
3701 if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
3702 nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
dcbb4c10
JP		 3703 f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
3704 sit_bitmap_size, nat_bitmap_size);
c77ec61c
CY		 3705 return 1;
3706 }
e494c2f9
CY		 3707
3708 cp_pack_start_sum = __start_sum_addr(sbi);
3709 cp_payload = __cp_payload(sbi);
3710 if (cp_pack_start_sum < cp_payload + 1 ||
3711 cp_pack_start_sum > blocks_per_seg - 1 -
d0b9e42a 3712 NR_CURSEG_PERSIST_TYPE) {
dcbb4c10
JP		 3713 f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
3714 cp_pack_start_sum);
e494c2f9
CY		 3715 return 1;
3716 }
c77ec61c 3717
5dae2d39
CY		 3718 if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
3719 le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
2d008835
CY		 3720 f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
3721 "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
3722 "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
dcbb4c10 3723 le32_to_cpu(ckpt->checksum_offset));
5dae2d39
CY		 3724 return 1;
3725 }
3726
65ddf656
CY		 3727 nat_blocks = nat_segs << log_blocks_per_seg;
3728 nat_bits_bytes = nat_blocks / BITS_PER_BYTE;
3729 nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
3730 if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) &&
3731 (cp_payload + F2FS_CP_PACKS +
3732 NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
3733 f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
3734 cp_payload, nat_bits_blocks);
ca98d721 3735 return 1;
65ddf656
CY		 3736 }
3737
1e968fdf 3738 if (unlikely(f2fs_cp_error(sbi))) {
dcbb4c10 3739 f2fs_err(sbi, "A bug case: need to run fsck");
577e3495
JK		 3740 return 1;
3741 }
aff063e2
JK		 3742 return 0;
3743}
3744
3745static void init_sb_info(struct f2fs_sb_info *sbi)
3746{
3747 struct f2fs_super_block *raw_super = sbi->raw_super;
089842de 3748 int i;
aff063e2
JK		 3749
3750 sbi->log_sectors_per_block =
3751 le32_to_cpu(raw_super->log_sectors_per_block);
3752 sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize);
447286eb 3753 sbi->blocksize = BIT(sbi->log_blocksize);
aff063e2 3754 sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
447286eb 3755 sbi->blocks_per_seg = BIT(sbi->log_blocks_per_seg);
aff063e2
JK		 3756 sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3757 sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3758 sbi->total_sections = le32_to_cpu(raw_super->section_count);
45809cd3
CY		 3759 sbi->total_node_count = SEGS_TO_BLKS(sbi,
3760 ((le32_to_cpu(raw_super->segment_count_nat) / 2) *
3761 NAT_ENTRY_PER_BLOCK));
b9ec1094
YL		 3762 F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
3763 F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
3764 F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
5ec4e49f 3765 sbi->cur_victim_sec = NULL_SECNO;
c86868bb 3766 sbi->gc_mode = GC_NORMAL;
e3080b01
CY		 3767 sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
3768 sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
b1c57c1c 3769 sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
a60108f7 3770 sbi->migration_granularity = SEGS_PER_SEC(sbi);
0f6b56ec 3771 sbi->seq_file_ra_mul = MIN_RA_MUL;
6691d940
DJ		 3772 sbi->max_fragment_chunk = DEF_FRAGMENT_SIZE;
3773 sbi->max_fragment_hole = DEF_FRAGMENT_SIZE;
e5a0db6a 3774 spin_lock_init(&sbi->gc_remaining_trials_lock);
f8e2f32b 3775 atomic64_set(&sbi->current_atomic_write, 0);
aff063e2 3776
ab9fa662 3777 sbi->dir_level = DEF_DIR_LEVEL;
6beceb54 3778 sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
d0239e1b 3779 sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
a7d10cf3
ST		 3780 sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
3781 sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
4354994f 3782 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
03f2c02d
JK		 3783 sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
3784 DEF_UMOUNT_DISCARD_TIMEOUT;
caf0047e 3785 clear_sbi_flag(sbi, SBI_NEED_FSCK);
2658e50d 3786
35782b23
JK		 3787 for (i = 0; i < NR_COUNT_TYPE; i++)
3788 atomic_set(&sbi->nr_pages[i], 0);
3789
c29fd0c0
CY		 3790 for (i = 0; i < META; i++)
3791 atomic_set(&sbi->wb_sync_req[i], 0);
687de7f1 3792
2658e50d
JK		 3793 INIT_LIST_HEAD(&sbi->s_list);
3794 mutex_init(&sbi->umount_mutex);
e4544b63 3795 init_f2fs_rwsem(&sbi->io_order_lock);
aaec2b1d 3796 spin_lock_init(&sbi->cp_lock);
1228b482
CY		 3797
3798 sbi->dirty_device = 0;
3799 spin_lock_init(&sbi->dev_lock);
d0d3f1b3 3800
e4544b63
TM		 3801 init_f2fs_rwsem(&sbi->sb_lock);
3802 init_f2fs_rwsem(&sbi->pin_sem);
aff063e2
JK		 3803}
3804
523be8a6
JK		 3805static int init_percpu_info(struct f2fs_sb_info *sbi)
3806{
35782b23 3807 int err;
41382ec4 3808
513c5f37
JK		 3809 err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
3810 if (err)
3811 return err;
3812
47c8ebcc
JK		 3813 err = percpu_counter_init(&sbi->rf_node_block_count, 0, GFP_KERNEL);
3814 if (err)
3815 goto err_valid_block;
3816
4a70e255 3817 err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
41382ec4 3818 GFP_KERNEL);
4a70e255 3819 if (err)
47c8ebcc
JK		 3820 goto err_node_block;
3821 return 0;
4a70e255 3822
47c8ebcc
JK		 3823err_node_block:
3824 percpu_counter_destroy(&sbi->rf_node_block_count);
3825err_valid_block:
3826 percpu_counter_destroy(&sbi->alloc_valid_block_count);
4a70e255 3827 return err;
523be8a6
JK		 3828}
3829
178053e2 3830#ifdef CONFIG_BLK_DEV_ZONED
de881df9
AR		 3831
3832struct f2fs_report_zones_args {
b771aadc 3833 struct f2fs_sb_info *sbi;
de881df9 3834 struct f2fs_dev_info *dev;
de881df9
AR		 3835};
3836
d4100351 3837static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx,
de881df9 3838 void *data)
d4100351 3839{
de881df9 3840 struct f2fs_report_zones_args *rz_args = data;
b771aadc
JK		 3841 block_t unusable_blocks = (zone->len - zone->capacity) >>
3842 F2FS_LOG_SECTORS_PER_BLOCK;
de881df9
AR		 3843
3844 if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
3845 return 0;
3846
3847 set_bit(idx, rz_args->dev->blkz_seq);
b771aadc
JK		 3848 if (!rz_args->sbi->unusable_blocks_per_sec) {
3849 rz_args->sbi->unusable_blocks_per_sec = unusable_blocks;
3850 return 0;
3851 }
3852 if (rz_args->sbi->unusable_blocks_per_sec != unusable_blocks) {
3853 f2fs_err(rz_args->sbi, "F2FS supports single zone capacity\n");
3854 return -EINVAL;
3855 }
d4100351
CH		 3856 return 0;
3857}
3858
3c62be17 3859static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
178053e2 3860{
3c62be17 3861 struct block_device *bdev = FDEV(devi).bdev;
a782483c 3862 sector_t nr_sectors = bdev_nr_sectors(bdev);
de881df9 3863 struct f2fs_report_zones_args rep_zone_arg;
d46db459 3864 u64 zone_sectors;
d4100351 3865 int ret;
178053e2 3866
7beb01f7 3867 if (!f2fs_sb_has_blkzoned(sbi))
178053e2
DLM		 3868 return 0;
3869
d46db459 3870 zone_sectors = bdev_zone_sectors(bdev);
3c62be17 3871 if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
d46db459 3872 SECTOR_TO_BLOCK(zone_sectors))
3c62be17 3873 return -EINVAL;
d46db459 3874 sbi->blocks_per_blkz = SECTOR_TO_BLOCK(zone_sectors);
2e2c6e9b
JK		 3875 FDEV(devi).nr_blkz = div_u64(SECTOR_TO_BLOCK(nr_sectors),
3876 sbi->blocks_per_blkz);
d46db459 3877 if (nr_sectors & (zone_sectors - 1))
3c62be17 3878 FDEV(devi).nr_blkz++;
178053e2 3879
0b6d4ca0 3880 FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
95175daf
DLM		 3881 BITS_TO_LONGS(FDEV(devi).nr_blkz)
3882 * sizeof(unsigned long),
3883 GFP_KERNEL);
3884 if (!FDEV(devi).blkz_seq)
178053e2
DLM		 3885 return -ENOMEM;
3886
b771aadc 3887 rep_zone_arg.sbi = sbi;
de881df9 3888 rep_zone_arg.dev = &FDEV(devi);
de881df9 3889
d4100351 3890 ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb,
de881df9 3891 &rep_zone_arg);
d4100351
CH		 3892 if (ret < 0)
3893 return ret;
d4100351 3894 return 0;
178053e2
DLM		 3895}
3896#endif
3897
9076a75f
GZ		 3898/*
3899 * Read f2fs raw super block.
2b39e907
SL		 3900 * Because we have two copies of super block, so read both of them
3901 * to get the first valid one. If any one of them is broken, we pass
3902 * them recovery flag back to the caller.
9076a75f 3903 */
df728b0f 3904static int read_raw_super_block(struct f2fs_sb_info *sbi,
9076a75f 3905 struct f2fs_super_block **raw_super,
e8240f65 3906 int *valid_super_block, int *recovery)
14d7e9de 3907{
df728b0f 3908 struct super_block *sb = sbi->sb;
2b39e907 3909 int block;
e8240f65 3910 struct buffer_head *bh;
fd694733 3911 struct f2fs_super_block *super;
da554e48 3912 int err = 0;
14d7e9de 3913
b39f0de2
YH		 3914 super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL);
3915 if (!super)
3916 return -ENOMEM;
2b39e907
SL		 3917
3918 for (block = 0; block < 2; block++) {
3919 bh = sb_bread(sb, block);
3920 if (!bh) {
dcbb4c10
JP		 3921 f2fs_err(sbi, "Unable to read %dth superblock",
3922 block + 1);
2b39e907 3923 err = -EIO;
ed352042 3924 *recovery = 1;
2b39e907
SL		 3925 continue;
3926 }
14d7e9de 3927
2b39e907 3928 /* sanity checking of raw super */
38fb6d0e
IZ		 3929 err = sanity_check_raw_super(sbi, bh);
3930 if (err) {
dcbb4c10
JP		 3931 f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
3932 block + 1);
2b39e907 3933 brelse(bh);
ed352042 3934 *recovery = 1;
2b39e907
SL		 3935 continue;
3936 }
14d7e9de 3937
2b39e907 3938 if (!*raw_super) {
fd694733
JK		 3939 memcpy(super, bh->b_data + F2FS_SUPER_OFFSET,
3940 sizeof(*super));
2b39e907
SL		 3941 *valid_super_block = block;
3942 *raw_super = super;
3943 }
3944 brelse(bh);
da554e48 3945 }
3946
da554e48 3947 /* No valid superblock */
2b39e907 3948 if (!*raw_super)
742532d1 3949 kfree(super);
2b39e907
SL		 3950 else
3951 err = 0;
da554e48 3952
2b39e907 3953 return err;
14d7e9de 3954}
3955
fd694733 3956int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
26d815ad 3957{
5d909cdb 3958 struct buffer_head *bh;
d440c52d 3959 __u32 crc = 0;
26d815ad
JK		 3960 int err;
3961
df728b0f 3962 if ((recover && f2fs_readonly(sbi->sb)) ||
68f0453d 3963 f2fs_hw_is_readonly(sbi)) {
df728b0f 3964 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
f2353d7b 3965 return -EROFS;
df728b0f 3966 }
f2353d7b 3967
d440c52d 3968 /* we should update superblock crc here */
7beb01f7 3969 if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
d440c52d
JZ		 3970 crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
3971 offsetof(struct f2fs_super_block, crc));
3972 F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
3973 }
3974
fd694733 3975 /* write back-up superblock first */
0964fc1a 3976 bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
5d909cdb
JK		 3977 if (!bh)
3978 return -EIO;
fd694733 3979 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
5d909cdb 3980 brelse(bh);
c5bda1c8
CY		 3981
3982 /* if we are in recovery path, skip writing valid superblock */
3983 if (recover || err)
5d909cdb 3984 return err;
26d815ad
JK		 3985
3986 /* write current valid superblock */
0964fc1a 3987 bh = sb_bread(sbi->sb, sbi->valid_super_block);
fd694733
JK		 3988 if (!bh)
3989 return -EIO;
3990 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
3991 brelse(bh);
3992 return err;
26d815ad
JK		 3993}
3994
b62e71be
CY		 3995static void save_stop_reason(struct f2fs_sb_info *sbi, unsigned char reason)
3996{
3997 unsigned long flags;
3998
3999 spin_lock_irqsave(&sbi->error_lock, flags);
4000 if (sbi->stop_reason[reason] < GENMASK(BITS_PER_BYTE - 1, 0))
4001 sbi->stop_reason[reason]++;
4002 spin_unlock_irqrestore(&sbi->error_lock, flags);
4003}
4004
4005static void f2fs_record_stop_reason(struct f2fs_sb_info *sbi)
a9cfee0e
CY		 4006{
4007 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
b62e71be 4008 unsigned long flags;
a9cfee0e
CY		 4009 int err;
4010
a9cfee0e
CY		 4011 f2fs_down_write(&sbi->sb_lock);
4012
b62e71be 4013 spin_lock_irqsave(&sbi->error_lock, flags);
901c12d1
CY		 4014 if (sbi->error_dirty) {
4015 memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors,
4016 MAX_F2FS_ERRORS);
4017 sbi->error_dirty = false;
4018 }
b62e71be
CY		 4019 memcpy(raw_super->s_stop_reason, sbi->stop_reason, MAX_STOP_REASON);
4020 spin_unlock_irqrestore(&sbi->error_lock, flags);
a9cfee0e
CY		 4021
4022 err = f2fs_commit_super(sbi, false);
b62e71be 4023
95fa90c9 4024 f2fs_up_write(&sbi->sb_lock);
b62e71be 4025 if (err)
0b8eb814
CY		 4026 f2fs_err_ratelimited(sbi,
4027 "f2fs_commit_super fails to record stop_reason, err:%d",
4028 err);
95fa90c9
CY		 4029}
4030
1aa161e4 4031void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag)
95fa90c9 4032{
b62e71be
CY		 4033 unsigned long flags;
4034
4035 spin_lock_irqsave(&sbi->error_lock, flags);
95fa90c9
CY		 4036 if (!test_bit(flag, (unsigned long *)sbi->errors)) {
4037 set_bit(flag, (unsigned long *)sbi->errors);
4038 sbi->error_dirty = true;
4039 }
b62e71be 4040 spin_unlock_irqrestore(&sbi->error_lock, flags);
95fa90c9
CY		 4041}
4042
4043static bool f2fs_update_errors(struct f2fs_sb_info *sbi)
4044{
b62e71be 4045 unsigned long flags;
95fa90c9
CY		 4046 bool need_update = false;
4047
b62e71be 4048 spin_lock_irqsave(&sbi->error_lock, flags);
95fa90c9
CY		 4049 if (sbi->error_dirty) {
4050 memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors,
4051 MAX_F2FS_ERRORS);
4052 sbi->error_dirty = false;
4053 need_update = true;
4054 }
b62e71be 4055 spin_unlock_irqrestore(&sbi->error_lock, flags);
95fa90c9
CY		 4056
4057 return need_update;
4058}
a9cfee0e 4059
901c12d1 4060static void f2fs_record_errors(struct f2fs_sb_info *sbi, unsigned char error)
95fa90c9
CY		 4061{
4062 int err;
4063
95fa90c9
CY		 4064 f2fs_down_write(&sbi->sb_lock);
4065
4066 if (!f2fs_update_errors(sbi))
4067 goto out_unlock;
4068
4069 err = f2fs_commit_super(sbi, false);
4070 if (err)
0b8eb814
CY		 4071 f2fs_err_ratelimited(sbi,
4072 "f2fs_commit_super fails to record errors:%u, err:%d",
4073 error, err);
95fa90c9 4074out_unlock:
a9cfee0e
CY		 4075 f2fs_up_write(&sbi->sb_lock);
4076}
4077
901c12d1
CY		 4078void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error)
4079{
4080 f2fs_save_errors(sbi, error);
4081 f2fs_record_errors(sbi, error);
4082}
4083
4084void f2fs_handle_error_async(struct f2fs_sb_info *sbi, unsigned char error)
4085{
4086 f2fs_save_errors(sbi, error);
4087
4088 if (!sbi->error_dirty)
4089 return;
4090 if (!test_bit(error, (unsigned long *)sbi->errors))
4091 return;
4092 schedule_work(&sbi->s_error_work);
4093}
4094
b62e71be
CY		 4095static bool system_going_down(void)
4096{
4097 return system_state == SYSTEM_HALT || system_state == SYSTEM_POWER_OFF
4098 || system_state == SYSTEM_RESTART;
4099}
4100
4101void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason,
4102 bool irq_context)
4103{
4104 struct super_block *sb = sbi->sb;
4105 bool shutdown = reason == STOP_CP_REASON_SHUTDOWN;
4106 bool continue_fs = !shutdown &&
4107 F2FS_OPTION(sbi).errors == MOUNT_ERRORS_CONTINUE;
4108
4109 set_ckpt_flags(sbi, CP_ERROR_FLAG);
4110
4111 if (!f2fs_hw_is_readonly(sbi)) {
4112 save_stop_reason(sbi, reason);
4113
4114 if (irq_context && !shutdown)
4115 schedule_work(&sbi->s_error_work);
4116 else
4117 f2fs_record_stop_reason(sbi);
4118 }
4119
4120 /*
4121 * We force ERRORS_RO behavior when system is rebooting. Otherwise we
4122 * could panic during 'reboot -f' as the underlying device got already
4123 * disabled.
4124 */
4125 if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_PANIC &&
4126 !shutdown && !system_going_down() &&
4127 !is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))
4128 panic("F2FS-fs (device %s): panic forced after error\n",
4129 sb->s_id);
4130
4131 if (shutdown)
4132 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
4133
4134 /* continue filesystem operators if errors=continue */
4135 if (continue_fs || f2fs_readonly(sb))
4136 return;
4137
4138 f2fs_warn(sbi, "Remounting filesystem read-only");
4139 /*
4140 * Make sure updated value of ->s_mount_flags will be visible before
4141 * ->s_flags update
4142 */
4143 smp_wmb();
4144 sb->s_flags |= SB_RDONLY;
4145}
4146
4147static void f2fs_record_error_work(struct work_struct *work)
4148{
4149 struct f2fs_sb_info *sbi = container_of(work,
4150 struct f2fs_sb_info, s_error_work);
4151
4152 f2fs_record_stop_reason(sbi);
4153}
4154
3c62be17
JK		 4155static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
4156{
4157 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
7bb3a371 4158 unsigned int max_devices = MAX_DEVICES;
71f2c820 4159 unsigned int logical_blksize;
05bdb996 4160 blk_mode_t mode = sb_open_mode(sbi->sb->s_flags);
3c62be17
JK		 4161 int i;
4162
7bb3a371
MS		 4163 /* Initialize single device information */
4164 if (!RDEV(0).path[0]) {
4165 if (!bdev_is_zoned(sbi->sb->s_bdev))
3c62be17 4166 return 0;
7bb3a371
MS		 4167 max_devices = 1;
4168 }
3c62be17 4169
7bb3a371
MS		 4170 /*
4171 * Initialize multiple devices information, or single
4172 * zoned block device information.
4173 */
026f0507
KC		 4174 sbi->devs = f2fs_kzalloc(sbi,
4175 array_size(max_devices,
4176 sizeof(struct f2fs_dev_info)),
4177 GFP_KERNEL);
7bb3a371
MS		 4178 if (!sbi->devs)
4179 return -ENOMEM;
3c62be17 4180
71f2c820
CY		 4181 logical_blksize = bdev_logical_block_size(sbi->sb->s_bdev);
4182 sbi->aligned_blksize = true;
4183
7bb3a371 4184 for (i = 0; i < max_devices; i++) {
51bf8d3c 4185 if (i == 0)
512383ae 4186 FDEV(0).bdev_file = sbi->sb->s_bdev_file;
51bf8d3c 4187 else if (!RDEV(i).path[0])
7bb3a371
MS		 4188 break;
4189
51bf8d3c 4190 if (max_devices > 1) {
7bb3a371
MS		 4191 /* Multi-device mount */
4192 memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN);
4193 FDEV(i).total_segments =
4194 le32_to_cpu(RDEV(i).total_segments);
4195 if (i == 0) {
4196 FDEV(i).start_blk = 0;
4197 FDEV(i).end_blk = FDEV(i).start_blk +
45809cd3
CY		 4198 SEGS_TO_BLKS(sbi,
4199 FDEV(i).total_segments) - 1 +
4200 le32_to_cpu(raw_super->segment0_blkaddr);
7bb3a371
MS		 4201 } else {
4202 FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
4203 FDEV(i).end_blk = FDEV(i).start_blk +
45809cd3
CY		 4204 SEGS_TO_BLKS(sbi,
4205 FDEV(i).total_segments) - 1;
512383ae 4206 FDEV(i).bdev_file = bdev_file_open_by_path(
2b107946 4207 FDEV(i).path, mode, sbi->sb, NULL);
7bb3a371 4208 }
7bb3a371 4209 }
512383ae
CB		 4210 if (IS_ERR(FDEV(i).bdev_file))
4211 return PTR_ERR(FDEV(i).bdev_file);
3c62be17 4212
512383ae 4213 FDEV(i).bdev = file_bdev(FDEV(i).bdev_file);
3c62be17
JK		 4214 /* to release errored devices */
4215 sbi->s_ndevs = i + 1;
4216
71f2c820
CY		 4217 if (logical_blksize != bdev_logical_block_size(FDEV(i).bdev))
4218 sbi->aligned_blksize = false;
4219
3c62be17 4220#ifdef CONFIG_BLK_DEV_ZONED
7437bb73
CH		 4221 if (bdev_is_zoned(FDEV(i).bdev)) {
4222 if (!f2fs_sb_has_blkzoned(sbi)) {
4223 f2fs_err(sbi, "Zoned block device feature not enabled");
4224 return -EINVAL;
4225 }
3c62be17 4226 if (init_blkz_info(sbi, i)) {
dcbb4c10 4227 f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
3c62be17
JK		 4228 return -EINVAL;
4229 }
7bb3a371
MS		 4230 if (max_devices == 1)
4231 break;
7437bb73 4232 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: Host-managed)",
dcbb4c10
JP		 4233 i, FDEV(i).path,
4234 FDEV(i).total_segments,
7437bb73 4235 FDEV(i).start_blk, FDEV(i).end_blk);
3c62be17
JK		 4236 continue;
4237 }
4238#endif
dcbb4c10
JP		 4239 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
4240 i, FDEV(i).path,
4241 FDEV(i).total_segments,
4242 FDEV(i).start_blk, FDEV(i).end_blk);
4243 }
3c62be17
JK		 4244 return 0;
4245}
4246
5aba5430
DR		 4247static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
4248{
5298d4bf 4249#if IS_ENABLED(CONFIG_UNICODE)
eca4873e 4250 if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) {
5aba5430
DR		 4251 const struct f2fs_sb_encodings *encoding_info;
4252 struct unicode_map *encoding;
4253 __u16 encoding_flags;
4254
86e80575
CH		 4255 encoding_info = f2fs_sb_read_encoding(sbi->raw_super);
4256 if (!encoding_info) {
5aba5430
DR		 4257 f2fs_err(sbi,
4258 "Encoding requested by superblock is unknown");
4259 return -EINVAL;
4260 }
4261
86e80575 4262 encoding_flags = le16_to_cpu(sbi->raw_super->s_encoding_flags);
5aba5430
DR		 4263 encoding = utf8_load(encoding_info->version);
4264 if (IS_ERR(encoding)) {
4265 f2fs_err(sbi,
49bd03cc 4266 "can't mount with superblock charset: %s-%u.%u.%u "
5aba5430 4267 "not supported by the kernel. flags: 0x%x.",
49bd03cc
CH		 4268 encoding_info->name,
4269 unicode_major(encoding_info->version),
4270 unicode_minor(encoding_info->version),
4271 unicode_rev(encoding_info->version),
5aba5430
DR		 4272 encoding_flags);
4273 return PTR_ERR(encoding);
4274 }
4275 f2fs_info(sbi, "Using encoding defined by superblock: "
49bd03cc
CH		 4276 "%s-%u.%u.%u with flags 0x%hx", encoding_info->name,
4277 unicode_major(encoding_info->version),
4278 unicode_minor(encoding_info->version),
4279 unicode_rev(encoding_info->version),
4280 encoding_flags);
5aba5430 4281
eca4873e
DR		 4282 sbi->sb->s_encoding = encoding;
4283 sbi->sb->s_encoding_flags = encoding_flags;
5aba5430
DR		 4284 }
4285#else
4286 if (f2fs_sb_has_casefold(sbi)) {
4287 f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
4288 return -EINVAL;
4289 }
4290#endif
4291 return 0;
4292}
4293
84b89e5d
JK		 4294static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
4295{
84b89e5d 4296 /* adjust parameters according to the volume size */
777cd95b 4297 if (MAIN_SEGS(sbi) <= SMALL_VOLUME_SEGMENTS) {
4f993264 4298 if (f2fs_block_unit_discard(sbi))
1cd2e6d5
YL		 4299 SM_I(sbi)->dcc_info->discard_granularity =
4300 MIN_DISCARD_GRANULARITY;
c5bf8348
YL		 4301 if (!f2fs_lfs_mode(sbi))
4302 SM_I(sbi)->ipu_policy = BIT(F2FS_IPU_FORCE) |
4303 BIT(F2FS_IPU_HONOR_OPU_WRITE);
84b89e5d 4304 }
4cac90d5 4305
66aee5aa 4306 sbi->readdir_ra = true;
84b89e5d
JK		 4307}
4308
aff063e2
JK		 4309static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
4310{
4311 struct f2fs_sb_info *sbi;
da554e48 4312 struct f2fs_super_block *raw_super;
aff063e2 4313 struct inode *root;
99e3e858 4314 int err;
aa2c8c43 4315 bool skip_recovery = false, need_fsck = false;
dabc4a5c 4316 char *options = NULL;
e8240f65 4317 int recovery, i, valid_super_block;
8f1dbbbb 4318 struct curseg_info *seg_i;
aa2c8c43 4319 int retry_cnt = 1;
e1bb7d3d
CY		 4320#ifdef CONFIG_QUOTA
4321 bool quota_enabled = false;
4322#endif
aff063e2 4323
ed2e621a 4324try_onemore:
da554e48 4325 err = -EINVAL;
4326 raw_super = NULL;
e8240f65 4327 valid_super_block = -1;
da554e48 4328 recovery = 0;
4329
aff063e2
JK		 4330 /* allocate memory for f2fs-specific super block info */
4331 sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
4332 if (!sbi)
4333 return -ENOMEM;
4334
df728b0f
JK		 4335 sbi->sb = sb;
4336
92b4cf5b
TH		 4337 /* initialize locks within allocated memory */
4338 init_f2fs_rwsem(&sbi->gc_lock);
4339 mutex_init(&sbi->writepages);
4340 init_f2fs_rwsem(&sbi->cp_global_sem);
4341 init_f2fs_rwsem(&sbi->node_write);
4342 init_f2fs_rwsem(&sbi->node_change);
4343 spin_lock_init(&sbi->stat_lock);
4344 init_f2fs_rwsem(&sbi->cp_rwsem);
4345 init_f2fs_rwsem(&sbi->quota_sem);
4346 init_waitqueue_head(&sbi->cp_wait);
4347 spin_lock_init(&sbi->error_lock);
4348
4349 for (i = 0; i < NR_INODE_TYPE; i++) {
4350 INIT_LIST_HEAD(&sbi->inode_list[i]);
4351 spin_lock_init(&sbi->inode_lock[i]);
4352 }
4353 mutex_init(&sbi->flush_lock);
4354
43b6573b
KM		 4355 /* Load the checksum driver */
4356 sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
4357 if (IS_ERR(sbi->s_chksum_driver)) {
dcbb4c10 4358 f2fs_err(sbi, "Cannot load crc32 driver.");
43b6573b
KM		 4359 err = PTR_ERR(sbi->s_chksum_driver);
4360 sbi->s_chksum_driver = NULL;
4361 goto free_sbi;
4362 }
4363
ff9234ad 4364 /* set a block size */
6bacf52f 4365 if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
dcbb4c10 4366 f2fs_err(sbi, "unable to set blocksize");
aff063e2 4367 goto free_sbi;
a07ef784 4368 }
aff063e2 4369
df728b0f 4370 err = read_raw_super_block(sbi, &raw_super, &valid_super_block,
e8240f65 4371 &recovery);
9076a75f
GZ		 4372 if (err)
4373 goto free_sbi;
4374
5fb08372 4375 sb->s_fs_info = sbi;
52763a4b
JK		 4376 sbi->raw_super = raw_super;
4377
b62e71be 4378 INIT_WORK(&sbi->s_error_work, f2fs_record_error_work);
92b4cf5b 4379 memcpy(sbi->errors, raw_super->s_errors, MAX_F2FS_ERRORS);
b62e71be 4380 memcpy(sbi->stop_reason, raw_super->s_stop_reason, MAX_STOP_REASON);
92b4cf5b 4381
704956ec 4382 /* precompute checksum seed for metadata */
7beb01f7 4383 if (f2fs_sb_has_inode_chksum(sbi))
704956ec
CY		 4384 sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
4385 sizeof(raw_super->uuid));
4386
458c15df 4387 default_options(sbi, false);
aff063e2 4388 /* parse mount options */
dabc4a5c
JK		 4389 options = kstrdup((const char *)data, GFP_KERNEL);
4390 if (data && !options) {
4391 err = -ENOMEM;
aff063e2 4392 goto free_sb_buf;
dabc4a5c
JK		 4393 }
4394
ed318a6c 4395 err = parse_options(sb, options, false);
dabc4a5c
JK		 4396 if (err)
4397 goto free_options;
aff063e2 4398
6d1451bf 4399 sb->s_maxbytes = max_file_blocks(NULL) <<
e0afc4d6 4400 le32_to_cpu(raw_super->log_blocksize);
aff063e2 4401 sb->s_max_links = F2FS_LINK_MAX;
aff063e2 4402
5aba5430
DR		 4403 err = f2fs_setup_casefold(sbi);
4404 if (err)
4405 goto free_options;
4406
0abd675e
CY		 4407#ifdef CONFIG_QUOTA
4408 sb->dq_op = &f2fs_quota_operations;
bc88ac96 4409 sb->s_qcop = &f2fs_quotactl_ops;
5c57132e 4410 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
292c196a 4411
7beb01f7 4412 if (f2fs_sb_has_quota_ino(sbi)) {
292c196a
CY		 4413 for (i = 0; i < MAXQUOTAS; i++) {
4414 if (f2fs_qf_ino(sbi->sb, i))
4415 sbi->nquota_files++;
4416 }
4417 }
0abd675e
CY		 4418#endif
4419
aff063e2 4420 sb->s_op = &f2fs_sops;
643fa961 4421#ifdef CONFIG_FS_ENCRYPTION
0b81d077 4422 sb->s_cop = &f2fs_cryptops;
95ae251f
EB		 4423#endif
4424#ifdef CONFIG_FS_VERITY
4425 sb->s_vop = &f2fs_verityops;
ffcc4182 4426#endif
aff063e2
JK		 4427 sb->s_xattr = f2fs_xattr_handlers;
4428 sb->s_export_op = &f2fs_export_ops;
4429 sb->s_magic = F2FS_SUPER_MAGIC;
aff063e2 4430 sb->s_time_gran = 1;
1751e8a6
LT		 4431 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
4432 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
a4af51ce 4433 super_set_uuid(sb, (void *) raw_super->uuid, sizeof(raw_super->uuid));
578c6478 4434 sb->s_iflags |= SB_I_CGROUPWB;
aff063e2
JK		 4435
4436 /* init f2fs-specific super block info */
e8240f65 4437 sbi->valid_super_block = valid_super_block;
315df839
JK		 4438
4439 /* disallow all the data/node/meta page writes */
4440 set_sbi_flag(sbi, SBI_POR_DOING);
971767ca 4441
908ea654
YY		 4442 err = f2fs_init_write_merge_io(sbi);
4443 if (err)
4444 goto free_bio_info;
971767ca 4445
aff063e2
JK		 4446 init_sb_info(sbi);
4447
52118743 4448 err = f2fs_init_iostat(sbi);
523be8a6 4449 if (err)
d7997e63 4450 goto free_bio_info;
523be8a6 4451
523be8a6
JK		 4452 err = init_percpu_info(sbi);
4453 if (err)
a4b68176 4454 goto free_iostat;
523be8a6 4455
a999150f
CY		 4456 /* init per sbi slab cache */
4457 err = f2fs_init_xattr_caches(sbi);
4458 if (err)
87161a2b 4459 goto free_percpu;
31083031
CY		 4460 err = f2fs_init_page_array_cache(sbi);
4461 if (err)
4462 goto free_xattr_cache;
a999150f 4463
aff063e2
JK		 4464 /* get an inode for meta space */
4465 sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
4466 if (IS_ERR(sbi->meta_inode)) {
dcbb4c10 4467 f2fs_err(sbi, "Failed to read F2FS meta data inode");
aff063e2 4468 err = PTR_ERR(sbi->meta_inode);
31083031 4469 goto free_page_array_cache;
aff063e2
JK		 4470 }
4471
4d57b86d 4472 err = f2fs_get_valid_checkpoint(sbi);
a07ef784 4473 if (err) {
dcbb4c10 4474 f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
aff063e2 4475 goto free_meta_inode;
a07ef784 4476 }
aff063e2 4477
af033b2a
CY		 4478 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
4479 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
db610a64
JK		 4480 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
4481 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
4482 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
4483 }
af033b2a 4484
04f0b2ea
QS		 4485 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
4486 set_sbi_flag(sbi, SBI_NEED_FSCK);
4487
3c62be17
JK		 4488 /* Initialize device list */
4489 err = f2fs_scan_devices(sbi);
4490 if (err) {
dcbb4c10 4491 f2fs_err(sbi, "Failed to find devices");
3c62be17
JK		 4492 goto free_devices;
4493 }
4494
4c8ff709
CY		 4495 err = f2fs_init_post_read_wq(sbi);
4496 if (err) {
4497 f2fs_err(sbi, "Failed to initialize post read workqueue");
4498 goto free_devices;
4499 }
4500
aff063e2
JK		 4501 sbi->total_valid_node_count =
4502 le32_to_cpu(sbi->ckpt->valid_node_count);
513c5f37
JK		 4503 percpu_counter_set(&sbi->total_valid_inode_count,
4504 le32_to_cpu(sbi->ckpt->valid_inode_count));
aff063e2
JK		 4505 sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count);
4506 sbi->total_valid_block_count =
4507 le64_to_cpu(sbi->ckpt->valid_block_count);
4508 sbi->last_valid_block_count = sbi->total_valid_block_count;
daeb433e 4509 sbi->reserved_blocks = 0;
80d42145 4510 sbi->current_reserved_blocks = 0;
7e65be49 4511 limit_reserve_root(sbi);
1ae18f71 4512 adjust_unusable_cap_perc(sbi);
41382ec4 4513
4d57b86d 4514 f2fs_init_extent_cache_info(sbi);
1dcc336b 4515
4d57b86d 4516 f2fs_init_ino_entry_info(sbi);
aff063e2 4517
50fa53ec
CY		 4518 f2fs_init_fsync_node_info(sbi);
4519
261eeb9c
DJ		 4520 /* setup checkpoint request control and start checkpoint issue thread */
4521 f2fs_init_ckpt_req_control(sbi);
3f7070b0 4522 if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) &&
261eeb9c
DJ		 4523 test_opt(sbi, MERGE_CHECKPOINT)) {
4524 err = f2fs_start_ckpt_thread(sbi);
4525 if (err) {
4526 f2fs_err(sbi,
4527 "Failed to start F2FS issue_checkpoint_thread (%d)",
4528 err);
4529 goto stop_ckpt_thread;
4530 }
4531 }
4532
aff063e2 4533 /* setup f2fs internal modules */
4d57b86d 4534 err = f2fs_build_segment_manager(sbi);
a07ef784 4535 if (err) {
dcbb4c10
JP		 4536 f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
4537 err);
aff063e2 4538 goto free_sm;
a07ef784 4539 }
4d57b86d 4540 err = f2fs_build_node_manager(sbi);
a07ef784 4541 if (err) {
dcbb4c10
JP		 4542 f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
4543 err);
aff063e2 4544 goto free_nm;
a07ef784 4545 }
aff063e2 4546
8f1dbbbb 4547 /* For write statistics */
3a0a9cbc 4548 sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
8f1dbbbb
SL		 4549
4550 /* Read accumulated write IO statistics if exists */
4551 seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
4552 if (__exist_node_summaries(sbi))
4553 sbi->kbytes_written =
b2dde6fc 4554 le64_to_cpu(seg_i->journal->info.kbytes_written);
8f1dbbbb 4555
4d57b86d 4556 f2fs_build_gc_manager(sbi);
aff063e2 4557
60aa4d55
ST		 4558 err = f2fs_build_stats(sbi);
4559 if (err)
4560 goto free_nm;
4561
aff063e2
JK		 4562 /* get an inode for node space */
4563 sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
4564 if (IS_ERR(sbi->node_inode)) {
dcbb4c10 4565 f2fs_err(sbi, "Failed to read node inode");
aff063e2 4566 err = PTR_ERR(sbi->node_inode);
60aa4d55 4567 goto free_stats;
aff063e2
JK		 4568 }
4569
aff063e2
JK		 4570 /* read root inode and dentry */
4571 root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
4572 if (IS_ERR(root)) {
dcbb4c10 4573 f2fs_err(sbi, "Failed to read root inode");
aff063e2 4574 err = PTR_ERR(root);
60aa4d55 4575 goto free_node_inode;
aff063e2 4576 }
bcbfbd60
CY		 4577 if (!S_ISDIR(root->i_mode) || !root->i_blocks ||
4578 !root->i_size || !root->i_nlink) {
9d847950 4579 iput(root);
8f99a946 4580 err = -EINVAL;
60aa4d55 4581 goto free_node_inode;
8f99a946 4582 }
aff063e2 4583
be2760a7 4584 generic_set_sb_d_ops(sb);
aff063e2
JK		 4585 sb->s_root = d_make_root(root); /* allocate root dentry */
4586 if (!sb->s_root) {
4587 err = -ENOMEM;
025cdb16 4588 goto free_node_inode;
aff063e2
JK		 4589 }
4590
6ce19aff 4591 err = f2fs_init_compress_inode(sbi);
b59d0bae 4592 if (err)
a398101a 4593 goto free_root_inode;
b59d0bae 4594
6ce19aff
CY		 4595 err = f2fs_register_sysfs(sbi);
4596 if (err)
4597 goto free_compress_inode;
4598
ea676733 4599#ifdef CONFIG_QUOTA
76cf05d7 4600 /* Enable quota usage during mount */
7beb01f7 4601 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
ea676733 4602 err = f2fs_enable_quotas(sb);
730746ce 4603 if (err)
dcbb4c10 4604 f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
ea676733 4605 }
e1bb7d3d
CY		 4606
4607 quota_enabled = f2fs_recover_quota_begin(sbi);
ea676733 4608#endif
7a88ddb5 4609 /* if there are any orphan inodes, free them */
4d57b86d 4610 err = f2fs_recover_orphan_inodes(sbi);
4b2414d0 4611 if (err)
ea676733 4612 goto free_meta;
4b2414d0 4613
4354994f 4614 if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
aa2c8c43 4615 goto reset_checkpoint;
4354994f 4616
6437d1b0 4617 /* recover fsynced data */
a9117eca
CY		 4618 if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
4619 !test_opt(sbi, NORECOVERY)) {
081d78c2
JK		 4620 /*
4621 * mount should be failed, when device has readonly mode, and
4622 * previous checkpoint was not done by clean system shutdown.
4623 */
b61af314 4624 if (f2fs_hw_is_readonly(sbi)) {
23738e74
CY		 4625 if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4626 err = f2fs_recover_fsync_data(sbi, true);
4627 if (err > 0) {
4628 err = -EROFS;
4629 f2fs_err(sbi, "Need to recover fsync data, but "
4630 "write access unavailable, please try "
4631 "mount w/ disable_roll_forward or norecovery");
4632 }
4633 if (err < 0)
4634 goto free_meta;
4635 }
4636 f2fs_info(sbi, "write access unavailable, skipping recovery");
b61af314 4637 goto reset_checkpoint;
081d78c2 4638 }
2adc3505
CY		 4639
4640 if (need_fsck)
4641 set_sbi_flag(sbi, SBI_NEED_FSCK);
4642
aa2c8c43
CY		 4643 if (skip_recovery)
4644 goto reset_checkpoint;
a468f0ef 4645
4d57b86d 4646 err = f2fs_recover_fsync_data(sbi, false);
6781eabb 4647 if (err < 0) {
aa2c8c43
CY		 4648 if (err != -ENOMEM)
4649 skip_recovery = true;
2adc3505 4650 need_fsck = true;
dcbb4c10
JP		 4651 f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
4652 err);
4b2414d0 4653 goto free_meta;
ed2e621a 4654 }
6781eabb 4655 } else {
4d57b86d 4656 err = f2fs_recover_fsync_data(sbi, true);
6781eabb
JK		 4657
4658 if (!f2fs_readonly(sb) && err > 0) {
4659 err = -EINVAL;
dcbb4c10 4660 f2fs_err(sbi, "Need to recover fsync data");
ea676733 4661 goto free_meta;
6781eabb 4662 }
6437d1b0 4663 }
d508c94e 4664
e1bb7d3d
CY		 4665#ifdef CONFIG_QUOTA
4666 f2fs_recover_quota_end(sbi, quota_enabled);
4667#endif
aca90eea 4668reset_checkpoint:
d508c94e
SK		 4669 /*
4670 * If the f2fs is not readonly and fsync data recovery succeeds,
4671 * check zoned block devices' write pointer consistency.
4672 */
4d4c5938 4673 if (f2fs_sb_has_blkzoned(sbi) && !f2fs_readonly(sb)) {
afbb8ff6 4674 int err2;
4d4c5938 4675
afbb8ff6
JK		 4676 f2fs_notice(sbi, "Checking entire write pointers");
4677 err2 = f2fs_check_write_pointer(sbi);
4d4c5938
JK		 4678 if (err2)
4679 err = err2;
d508c94e 4680 }
4d4c5938
JK		 4681 if (err)
4682 goto free_meta;
d508c94e 4683
24593061
ZN		 4684 err = f2fs_init_inmem_curseg(sbi);
4685 if (err)
4686 goto sync_free_meta;
093749e2 4687
4d57b86d 4688 /* f2fs_recover_fsync_data() cleared this already */
315df839 4689 clear_sbi_flag(sbi, SBI_POR_DOING);
b59d0bae 4690
4354994f
DR		 4691 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
4692 err = f2fs_disable_checkpoint(sbi);
4693 if (err)
812a9597 4694 goto sync_free_meta;
4354994f
DR		 4695 } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
4696 f2fs_enable_checkpoint(sbi);
4697 }
4698
6437d1b0
JK		 4699 /*
4700 * If filesystem is not mounted as read-only then
4701 * do start the gc_thread.
4702 */
5911d2d1
CY		 4703 if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF ||
4704 test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) {
6437d1b0 4705 /* After POR, we can run background GC thread.*/
4d57b86d 4706 err = f2fs_start_gc_thread(sbi);
6437d1b0 4707 if (err)
812a9597 4708 goto sync_free_meta;
6437d1b0 4709 }
5222595d 4710 kvfree(options);
da554e48 4711
4712 /* recover broken superblock */
f2353d7b 4713 if (recovery) {
41214b3c 4714 err = f2fs_commit_super(sbi, true);
dcbb4c10
JP		 4715 f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
4716 sbi->valid_super_block ? 1 : 2, err);
da554e48 4717 }
4718
bae01eda
CY		 4719 f2fs_join_shrinker(sbi);
4720
84b89e5d
JK		 4721 f2fs_tuning_parameters(sbi);
4722
dcbb4c10
JP		 4723 f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
4724 cur_cp_version(F2FS_CKPT(sbi)));
6beceb54 4725 f2fs_update_time(sbi, CP_TIME);
d0239e1b 4726 f2fs_update_time(sbi, REQ_TIME);
db610a64 4727 clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
aff063e2 4728 return 0;
6437d1b0 4729
812a9597
JK		 4730sync_free_meta:
4731 /* safe to flush all the data */
4732 sync_filesystem(sbi->sb);
aa2c8c43 4733 retry_cnt = 0;
812a9597 4734
4b2414d0 4735free_meta:
ea676733 4736#ifdef CONFIG_QUOTA
26b5a079 4737 f2fs_truncate_quota_inode_pages(sb);
7beb01f7 4738 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
ea676733
JK		 4739 f2fs_quota_off_umount(sbi->sb);
4740#endif
4b2414d0 4741 /*
4d57b86d 4742 * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
4b2414d0 4743 * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
4d57b86d
CY		 4744 * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
4745 * falls into an infinite loop in f2fs_sync_meta_pages().
4b2414d0
CY		 4746 */
4747 truncate_inode_pages_final(META_MAPPING(sbi));
812a9597
JK		 4748 /* evict some inodes being cached by GC */
4749 evict_inodes(sb);
dc6b2055 4750 f2fs_unregister_sysfs(sbi);
6ce19aff
CY		 4751free_compress_inode:
4752 f2fs_destroy_compress_inode(sbi);
aff063e2
JK		 4753free_root_inode:
4754 dput(sb->s_root);
4755 sb->s_root = NULL;
4756free_node_inode:
4d57b86d 4757 f2fs_release_ino_entry(sbi, true);
bae01eda 4758 truncate_inode_pages_final(NODE_MAPPING(sbi));
aff063e2 4759 iput(sbi->node_inode);
7c77bf7d 4760 sbi->node_inode = NULL;
60aa4d55
ST		 4761free_stats:
4762 f2fs_destroy_stats(sbi);
aff063e2 4763free_nm:
5429c9db
DM		 4764 /* stop discard thread before destroying node manager */
4765 f2fs_stop_discard_thread(sbi);
4d57b86d 4766 f2fs_destroy_node_manager(sbi);
aff063e2 4767free_sm:
4d57b86d 4768 f2fs_destroy_segment_manager(sbi);
261eeb9c
DJ		 4769stop_ckpt_thread:
4770 f2fs_stop_ckpt_thread(sbi);
b62e71be
CY		 4771 /* flush s_error_work before sbi destroy */
4772 flush_work(&sbi->s_error_work);
7b02b220 4773 f2fs_destroy_post_read_wq(sbi);
3c62be17
JK		 4774free_devices:
4775 destroy_device_list(sbi);
5222595d 4776 kvfree(sbi->ckpt);
aff063e2
JK		 4777free_meta_inode:
4778 make_bad_inode(sbi->meta_inode);
4779 iput(sbi->meta_inode);
7c77bf7d 4780 sbi->meta_inode = NULL;
31083031
CY		 4781free_page_array_cache:
4782 f2fs_destroy_page_array_cache(sbi);
a999150f
CY		 4783free_xattr_cache:
4784 f2fs_destroy_xattr_caches(sbi);
d7997e63
CY		 4785free_percpu:
4786 destroy_percpu_info(sbi);
a4b68176
DJ		 4787free_iostat:
4788 f2fs_destroy_iostat(sbi);
d7997e63 4789free_bio_info:
a912b54d 4790 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 4791 kvfree(sbi->write_io[i]);
5aba5430 4792
5298d4bf 4793#if IS_ENABLED(CONFIG_UNICODE)
eca4873e 4794 utf8_unload(sb->s_encoding);
89ff6005 4795 sb->s_encoding = NULL;
5aba5430 4796#endif
d7997e63 4797free_options:
4b2414d0
CY		 4798#ifdef CONFIG_QUOTA
4799 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 4800 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 4801#endif
ac4acb1f 4802 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
5222595d 4803 kvfree(options);
aff063e2 4804free_sb_buf:
742532d1 4805 kfree(raw_super);
aff063e2 4806free_sbi:
43b6573b
KM		 4807 if (sbi->s_chksum_driver)
4808 crypto_free_shash(sbi->s_chksum_driver);
742532d1 4809 kfree(sbi);
c919330d 4810 sb->s_fs_info = NULL;
ed2e621a
JK		 4811
4812 /* give only one another chance */
aa2c8c43
CY		 4813 if (retry_cnt > 0 && skip_recovery) {
4814 retry_cnt--;
ed2e621a
JK		 4815 shrink_dcache_sb(sb);
4816 goto try_onemore;
4817 }
aff063e2
JK		 4818 return err;
4819}
4820
4821static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags,
4822 const char *dev_name, void *data)
4823{
4824 return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super);
4825}
4826
30a5537f
JK		 4827static void kill_f2fs_super(struct super_block *sb)
4828{
275dca46 4829 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1cb50f87 4830
275dca46 4831 if (sb->s_root) {
1cb50f87
JK		 4832 set_sbi_flag(sbi, SBI_IS_CLOSE);
4833 f2fs_stop_gc_thread(sbi);
4834 f2fs_stop_discard_thread(sbi);
4835
6ce19aff
CY		 4836#ifdef CONFIG_F2FS_FS_COMPRESSION
4837 /*
4838 * latter evict_inode() can bypass checking and invalidating
4839 * compress inode cache.
4840 */
4841 if (test_opt(sbi, COMPRESS_CACHE))
4842 truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
4843#endif
4844
1cb50f87
JK		 4845 if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
4846 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4847 struct cp_control cpc = {
4848 .reason = CP_UMOUNT,
4849 };
eb61c2cc 4850 stat_inc_cp_call_count(sbi, TOTAL_CALL);
1cb50f87
JK		 4851 f2fs_write_checkpoint(sbi, &cpc);
4852 }
1378752b
CY		 4853
4854 if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb))
4855 sb->s_flags &= ~SB_RDONLY;
cce13252 4856 }
30a5537f 4857 kill_block_super(sb);
275dca46
EB		 4858 /* Release block devices last, after fscrypt_destroy_keyring(). */
4859 if (sbi) {
4860 destroy_device_list(sbi);
4861 kfree(sbi);
4862 sb->s_fs_info = NULL;
4863 }
30a5537f
JK		 4864}
4865
aff063e2
JK		 4866static struct file_system_type f2fs_fs_type = {
4867 .owner = THIS_MODULE,
4868 .name = "f2fs",
4869 .mount = f2fs_mount,
30a5537f 4870 .kill_sb = kill_f2fs_super,
984fc4e7 4871 .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP,
aff063e2 4872};
7f78e035 4873MODULE_ALIAS_FS("f2fs");
aff063e2 4874
6e6093a8 4875static int __init init_inodecache(void)
aff063e2 4876{
5d097056
VD		 4877 f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache",
4878 sizeof(struct f2fs_inode_info), 0,
4879 SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL);
870af777 4880 return f2fs_inode_cachep ? 0 : -ENOMEM;
aff063e2
JK		 4881}
4882
4883static void destroy_inodecache(void)
4884{
4885 /*
4886 * Make sure all delayed rcu free inodes are flushed before we
4887 * destroy cache.
4888 */
4889 rcu_barrier();
4890 kmem_cache_destroy(f2fs_inode_cachep);
4891}
4892
4893static int __init init_f2fs_fs(void)
4894{
4895 int err;
4896
4071e67c 4897 if (PAGE_SIZE != F2FS_BLKSIZE) {
d7e9a903 4898 printk("F2FS not supported on PAGE_SIZE(%lu) != BLOCK_SIZE(%lu)\n",
4071e67c
AP		 4899 PAGE_SIZE, F2FS_BLKSIZE);
4900 return -EINVAL;
4901 }
4902
aff063e2
JK		 4903 err = init_inodecache();
4904 if (err)
4905 goto fail;
4d57b86d 4906 err = f2fs_create_node_manager_caches();
aff063e2 4907 if (err)
9890ff3f 4908 goto free_inodecache;
4d57b86d 4909 err = f2fs_create_segment_manager_caches();
aff063e2 4910 if (err)
9890ff3f 4911 goto free_node_manager_caches;
4d57b86d 4912 err = f2fs_create_checkpoint_caches();
aff063e2 4913 if (err)
06292073 4914 goto free_segment_manager_caches;
cad83c96 4915 err = f2fs_create_recovery_cache();
1dcc336b
CY		 4916 if (err)
4917 goto free_checkpoint_caches;
cad83c96
CY		 4918 err = f2fs_create_extent_cache();
4919 if (err)
4920 goto free_recovery_cache;
093749e2 4921 err = f2fs_create_garbage_collection_cache();
a398101a 4922 if (err)
1dcc336b 4923 goto free_extent_cache;
093749e2
CY		 4924 err = f2fs_init_sysfs();
4925 if (err)
4926 goto free_garbage_collection_cache;
bfcba5ba 4927 err = f2fs_init_shrinker();
cfc4d971 4928 if (err)
a398101a 4929 goto free_sysfs;
2658e50d
JK		 4930 err = register_filesystem(&f2fs_fs_type);
4931 if (err)
4932 goto free_shrinker;
21acc07d 4933 f2fs_create_root_stats();
6dbb1796
EB		 4934 err = f2fs_init_post_read_processing();
4935 if (err)
4936 goto free_root_stats;
a4b68176 4937 err = f2fs_init_iostat_processing();
0b20fcec
CY		 4938 if (err)
4939 goto free_post_read;
a4b68176
DJ		 4940 err = f2fs_init_bio_entry_cache();
4941 if (err)
4942 goto free_iostat;
f543805f
CY		 4943 err = f2fs_init_bioset();
4944 if (err)
db8dcd25 4945 goto free_bio_entry_cache;
5e6bbde9
CY		 4946 err = f2fs_init_compress_mempool();
4947 if (err)
4948 goto free_bioset;
c68d6c88
CY		 4949 err = f2fs_init_compress_cache();
4950 if (err)
4951 goto free_compress_mempool;
4d9a2bb1
CY		 4952 err = f2fs_create_casefold_cache();
4953 if (err)
4954 goto free_compress_cache;
9890ff3f 4955 return 0;
4d9a2bb1
CY		 4956free_compress_cache:
4957 f2fs_destroy_compress_cache();
c68d6c88
CY		 4958free_compress_mempool:
4959 f2fs_destroy_compress_mempool();
5e6bbde9
CY		 4960free_bioset:
4961 f2fs_destroy_bioset();
db8dcd25 4962free_bio_entry_cache:
f543805f 4963 f2fs_destroy_bio_entry_cache();
a4b68176
DJ		 4964free_iostat:
4965 f2fs_destroy_iostat_processing();
0b20fcec
CY		 4966free_post_read:
4967 f2fs_destroy_post_read_processing();
6dbb1796
EB		 4968free_root_stats:
4969 f2fs_destroy_root_stats();
787c7b8c 4970 unregister_filesystem(&f2fs_fs_type);
2658e50d 4971free_shrinker:
bfcba5ba 4972 f2fs_exit_shrinker();
a398101a 4973free_sysfs:
dc6b2055 4974 f2fs_exit_sysfs();
093749e2
CY		 4975free_garbage_collection_cache:
4976 f2fs_destroy_garbage_collection_cache();
1dcc336b 4977free_extent_cache:
4d57b86d 4978 f2fs_destroy_extent_cache();
cad83c96
CY		 4979free_recovery_cache:
4980 f2fs_destroy_recovery_cache();
9890ff3f 4981free_checkpoint_caches:
4d57b86d 4982 f2fs_destroy_checkpoint_caches();
7fd9e544 4983free_segment_manager_caches:
4d57b86d 4984 f2fs_destroy_segment_manager_caches();
9890ff3f 4985free_node_manager_caches:
4d57b86d 4986 f2fs_destroy_node_manager_caches();
9890ff3f
ZH		 4987free_inodecache:
4988 destroy_inodecache();
aff063e2
JK		 4989fail:
4990 return err;
4991}
4992
4993static void __exit exit_f2fs_fs(void)
4994{
4d9a2bb1 4995 f2fs_destroy_casefold_cache();
c68d6c88 4996 f2fs_destroy_compress_cache();
5e6bbde9 4997 f2fs_destroy_compress_mempool();
f543805f 4998 f2fs_destroy_bioset();
0b20fcec 4999 f2fs_destroy_bio_entry_cache();
a4b68176 5000 f2fs_destroy_iostat_processing();
6dbb1796 5001 f2fs_destroy_post_read_processing();
4589d25d 5002 f2fs_destroy_root_stats();
aff063e2 5003 unregister_filesystem(&f2fs_fs_type);
bfcba5ba 5004 f2fs_exit_shrinker();
dc6b2055 5005 f2fs_exit_sysfs();
093749e2 5006 f2fs_destroy_garbage_collection_cache();
4d57b86d 5007 f2fs_destroy_extent_cache();
cad83c96 5008 f2fs_destroy_recovery_cache();
4d57b86d
CY		 5009 f2fs_destroy_checkpoint_caches();
5010 f2fs_destroy_segment_manager_caches();
5011 f2fs_destroy_node_manager_caches();
aff063e2
JK		 5012 destroy_inodecache();
5013}
5014
5015module_init(init_f2fs_fs)
5016module_exit(exit_f2fs_fs)
5017
5018MODULE_AUTHOR("Samsung Electronics's Praesto Team");
5019MODULE_DESCRIPTION("Flash Friendly File System");
5020MODULE_LICENSE("GPL");
0dd57178 5021MODULE_SOFTDEP("pre: crc32");
b4b9d34c 5022
Linux 6.x block layer and io_uring tree(s)