projects / linux-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
f2fs: rebuild nat_bits during umount
[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>
11#include <linux/statfs.h>
aff063e2
JK		 12#include <linux/buffer_head.h>
13#include <linux/backing-dev.h>
14#include <linux/kthread.h>
15#include <linux/parser.h>
16#include <linux/mount.h>
17#include <linux/seq_file.h>
5e176d54 18#include <linux/proc_fs.h>
aff063e2
JK		 19#include <linux/random.h>
20#include <linux/exportfs.h>
d3ee456d 21#include <linux/blkdev.h>
0abd675e 22#include <linux/quotaops.h>
aff063e2 23#include <linux/f2fs_fs.h>
b59d0bae 24#include <linux/sysfs.h>
4b2414d0 25#include <linux/quota.h>
5aba5430 26#include <linux/unicode.h>
c6a564ff 27#include <linux/part_stat.h>
3fde13f8
CY		 28#include <linux/zstd.h>
29#include <linux/lz4.h>
aff063e2
JK		 30
31#include "f2fs.h"
32#include "node.h"
5ec4e49f 33#include "segment.h"
aff063e2 34#include "xattr.h"
b59d0bae 35#include "gc.h"
52118743 36#include "iostat.h"
aff063e2 37
a2a4a7e4
NJ		 38#define CREATE_TRACE_POINTS
39#include <trace/events/f2fs.h>
40
aff063e2
JK		 41static struct kmem_cache *f2fs_inode_cachep;
42
73faec4d 43#ifdef CONFIG_F2FS_FAULT_INJECTION
2c63fead 44
19880e6e 45const char *f2fs_fault_name[FAULT_MAX] = {
2c63fead 46 [FAULT_KMALLOC] = "kmalloc",
628b3d14 47 [FAULT_KVMALLOC] = "kvmalloc",
c41f3cc3 48 [FAULT_PAGE_ALLOC] = "page alloc",
01eccef7 49 [FAULT_PAGE_GET] = "page get",
cb78942b
JK		 50 [FAULT_ALLOC_NID] = "alloc nid",
51 [FAULT_ORPHAN] = "orphan",
52 [FAULT_BLOCK] = "no more block",
53 [FAULT_DIR_DEPTH] = "too big dir depth",
53aa6bbf 54 [FAULT_EVICT_INODE] = "evict_inode fail",
14b44d23 55 [FAULT_TRUNCATE] = "truncate fail",
6f5c2ed0 56 [FAULT_READ_IO] = "read IO error",
0f348028 57 [FAULT_CHECKPOINT] = "checkpoint error",
b83dcfe6 58 [FAULT_DISCARD] = "discard error",
6f5c2ed0 59 [FAULT_WRITE_IO] = "write IO error",
32410577 60 [FAULT_SLAB_ALLOC] = "slab alloc",
2c63fead 61};
08796897 62
d494500a
CY		 63void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
64 unsigned int type)
08796897 65{
63189b78 66 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1ecc0c5c 67
08796897 68 if (rate) {
1ecc0c5c
CY		 69 atomic_set(&ffi->inject_ops, 0);
70 ffi->inject_rate = rate;
08796897 71 }
d494500a
CY		 72
73 if (type)
74 ffi->inject_type = type;
75
76 if (!rate && !type)
77 memset(ffi, 0, sizeof(struct f2fs_fault_info));
08796897 78}
73faec4d
JK		 79#endif
80
2658e50d
JK		 81/* f2fs-wide shrinker description */
82static struct shrinker f2fs_shrinker_info = {
83 .scan_objects = f2fs_shrink_scan,
84 .count_objects = f2fs_shrink_count,
85 .seeks = DEFAULT_SEEKS,
86};
87
aff063e2 88enum {
696c018c 89 Opt_gc_background,
aff063e2 90 Opt_disable_roll_forward,
2d834bf9 91 Opt_norecovery,
aff063e2 92 Opt_discard,
64058be9 93 Opt_nodiscard,
aff063e2 94 Opt_noheap,
7a20b8a6 95 Opt_heap,
4058c511 96 Opt_user_xattr,
aff063e2 97 Opt_nouser_xattr,
4058c511 98 Opt_acl,
aff063e2
JK		 99 Opt_noacl,
100 Opt_active_logs,
101 Opt_disable_ext_identify,
444c580f 102 Opt_inline_xattr,
23cf7212 103 Opt_noinline_xattr,
6afc662e 104 Opt_inline_xattr_size,
8274de77 105 Opt_inline_data,
5efd3c6f 106 Opt_inline_dentry,
97c1794a 107 Opt_noinline_dentry,
6b4afdd7 108 Opt_flush_merge,
69e9e427 109 Opt_noflush_merge,
0f7b2abd 110 Opt_nobarrier,
d5053a34 111 Opt_fastboot,
89672159 112 Opt_extent_cache,
7daaea25 113 Opt_noextent_cache,
75342797 114 Opt_noinline_data,
343f40f0 115 Opt_data_flush,
7e65be49 116 Opt_reserve_root,
7c2e5963
JK		 117 Opt_resgid,
118 Opt_resuid,
36abef4e 119 Opt_mode,
ec91538d 120 Opt_io_size_bits,
73faec4d 121 Opt_fault_injection,
d494500a 122 Opt_fault_type,
6d94c74a
JK		 123 Opt_lazytime,
124 Opt_nolazytime,
4b2414d0
CY		 125 Opt_quota,
126 Opt_noquota,
0abd675e
CY		 127 Opt_usrquota,
128 Opt_grpquota,
5c57132e 129 Opt_prjquota,
4b2414d0
CY		 130 Opt_usrjquota,
131 Opt_grpjquota,
132 Opt_prjjquota,
133 Opt_offusrjquota,
134 Opt_offgrpjquota,
135 Opt_offprjjquota,
136 Opt_jqfmt_vfsold,
137 Opt_jqfmt_vfsv0,
138 Opt_jqfmt_vfsv1,
0cdd3195 139 Opt_whint,
07939627 140 Opt_alloc,
93cf93f1 141 Opt_fsync,
ff62af20 142 Opt_test_dummy_encryption,
27aacd28 143 Opt_inlinecrypt,
4d3aed70
DR		 144 Opt_checkpoint_disable,
145 Opt_checkpoint_disable_cap,
146 Opt_checkpoint_disable_cap_perc,
147 Opt_checkpoint_enable,
261eeb9c
DJ		 148 Opt_checkpoint_merge,
149 Opt_nocheckpoint_merge,
4c8ff709
CY		 150 Opt_compress_algorithm,
151 Opt_compress_log_size,
152 Opt_compress_extension,
151b1982 153 Opt_nocompress_extension,
b28f047b 154 Opt_compress_chksum,
602a16d5 155 Opt_compress_mode,
6ce19aff 156 Opt_compress_cache,
093749e2 157 Opt_atgc,
5911d2d1
CY		 158 Opt_gc_merge,
159 Opt_nogc_merge,
4f993264 160 Opt_discard_unit,
aff063e2
JK		 161 Opt_err,
162};
163
164static match_table_t f2fs_tokens = {
696c018c 165 {Opt_gc_background, "background_gc=%s"},
aff063e2 166 {Opt_disable_roll_forward, "disable_roll_forward"},
2d834bf9 167 {Opt_norecovery, "norecovery"},
aff063e2 168 {Opt_discard, "discard"},
64058be9 169 {Opt_nodiscard, "nodiscard"},
aff063e2 170 {Opt_noheap, "no_heap"},
7a20b8a6 171 {Opt_heap, "heap"},
4058c511 172 {Opt_user_xattr, "user_xattr"},
aff063e2 173 {Opt_nouser_xattr, "nouser_xattr"},
4058c511 174 {Opt_acl, "acl"},
aff063e2
JK		 175 {Opt_noacl, "noacl"},
176 {Opt_active_logs, "active_logs=%u"},
177 {Opt_disable_ext_identify, "disable_ext_identify"},
444c580f 178 {Opt_inline_xattr, "inline_xattr"},
23cf7212 179 {Opt_noinline_xattr, "noinline_xattr"},
6afc662e 180 {Opt_inline_xattr_size, "inline_xattr_size=%u"},
8274de77 181 {Opt_inline_data, "inline_data"},
5efd3c6f 182 {Opt_inline_dentry, "inline_dentry"},
97c1794a 183 {Opt_noinline_dentry, "noinline_dentry"},
6b4afdd7 184 {Opt_flush_merge, "flush_merge"},
69e9e427 185 {Opt_noflush_merge, "noflush_merge"},
0f7b2abd 186 {Opt_nobarrier, "nobarrier"},
d5053a34 187 {Opt_fastboot, "fastboot"},
89672159 188 {Opt_extent_cache, "extent_cache"},
7daaea25 189 {Opt_noextent_cache, "noextent_cache"},
75342797 190 {Opt_noinline_data, "noinline_data"},
343f40f0 191 {Opt_data_flush, "data_flush"},
7e65be49 192 {Opt_reserve_root, "reserve_root=%u"},
7c2e5963
JK		 193 {Opt_resgid, "resgid=%u"},
194 {Opt_resuid, "resuid=%u"},
36abef4e 195 {Opt_mode, "mode=%s"},
ec91538d 196 {Opt_io_size_bits, "io_bits=%u"},
73faec4d 197 {Opt_fault_injection, "fault_injection=%u"},
d494500a 198 {Opt_fault_type, "fault_type=%u"},
6d94c74a
JK		 199 {Opt_lazytime, "lazytime"},
200 {Opt_nolazytime, "nolazytime"},
4b2414d0
CY		 201 {Opt_quota, "quota"},
202 {Opt_noquota, "noquota"},
0abd675e
CY		 203 {Opt_usrquota, "usrquota"},
204 {Opt_grpquota, "grpquota"},
5c57132e 205 {Opt_prjquota, "prjquota"},
4b2414d0
CY		 206 {Opt_usrjquota, "usrjquota=%s"},
207 {Opt_grpjquota, "grpjquota=%s"},
208 {Opt_prjjquota, "prjjquota=%s"},
209 {Opt_offusrjquota, "usrjquota="},
210 {Opt_offgrpjquota, "grpjquota="},
211 {Opt_offprjjquota, "prjjquota="},
212 {Opt_jqfmt_vfsold, "jqfmt=vfsold"},
213 {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
214 {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
0cdd3195 215 {Opt_whint, "whint_mode=%s"},
07939627 216 {Opt_alloc, "alloc_mode=%s"},
93cf93f1 217 {Opt_fsync, "fsync_mode=%s"},
ed318a6c 218 {Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
ff62af20 219 {Opt_test_dummy_encryption, "test_dummy_encryption"},
27aacd28 220 {Opt_inlinecrypt, "inlinecrypt"},
4d3aed70
DR		 221 {Opt_checkpoint_disable, "checkpoint=disable"},
222 {Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
223 {Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
224 {Opt_checkpoint_enable, "checkpoint=enable"},
261eeb9c
DJ		 225 {Opt_checkpoint_merge, "checkpoint_merge"},
226 {Opt_nocheckpoint_merge, "nocheckpoint_merge"},
4c8ff709
CY		 227 {Opt_compress_algorithm, "compress_algorithm=%s"},
228 {Opt_compress_log_size, "compress_log_size=%u"},
229 {Opt_compress_extension, "compress_extension=%s"},
151b1982 230 {Opt_nocompress_extension, "nocompress_extension=%s"},
b28f047b 231 {Opt_compress_chksum, "compress_chksum"},
602a16d5 232 {Opt_compress_mode, "compress_mode=%s"},
6ce19aff 233 {Opt_compress_cache, "compress_cache"},
093749e2 234 {Opt_atgc, "atgc"},
5911d2d1
CY		 235 {Opt_gc_merge, "gc_merge"},
236 {Opt_nogc_merge, "nogc_merge"},
4f993264 237 {Opt_discard_unit, "discard_unit=%s"},
aff063e2
JK		 238 {Opt_err, NULL},
239};
240
dcbb4c10 241void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...)
a07ef784
NJ		 242{
243 struct va_format vaf;
244 va_list args;
dcbb4c10 245 int level;
a07ef784
NJ		 246
247 va_start(args, fmt);
dcbb4c10
JP		 248
249 level = printk_get_level(fmt);
250 vaf.fmt = printk_skip_level(fmt);
a07ef784 251 vaf.va = &args;
dcbb4c10
JP		 252 printk("%c%cF2FS-fs (%s): %pV\n",
253 KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
254
a07ef784
NJ		 255 va_end(args);
256}
257
5aba5430
DR		 258#ifdef CONFIG_UNICODE
259static const struct f2fs_sb_encodings {
260 __u16 magic;
261 char *name;
262 char *version;
263} f2fs_sb_encoding_map[] = {
264 {F2FS_ENC_UTF8_12_1, "utf8", "12.1.0"},
265};
266
267static int f2fs_sb_read_encoding(const struct f2fs_super_block *sb,
268 const struct f2fs_sb_encodings **encoding,
269 __u16 *flags)
270{
271 __u16 magic = le16_to_cpu(sb->s_encoding);
272 int i;
273
274 for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++)
275 if (magic == f2fs_sb_encoding_map[i].magic)
276 break;
277
278 if (i >= ARRAY_SIZE(f2fs_sb_encoding_map))
279 return -EINVAL;
280
281 *encoding = &f2fs_sb_encoding_map[i];
282 *flags = le16_to_cpu(sb->s_encoding_flags);
283
284 return 0;
285}
4d9a2bb1
CY		 286
287struct kmem_cache *f2fs_cf_name_slab;
288static int __init f2fs_create_casefold_cache(void)
289{
290 f2fs_cf_name_slab = f2fs_kmem_cache_create("f2fs_casefolded_name",
291 F2FS_NAME_LEN);
292 if (!f2fs_cf_name_slab)
293 return -ENOMEM;
294 return 0;
295}
296
297static void f2fs_destroy_casefold_cache(void)
298{
299 kmem_cache_destroy(f2fs_cf_name_slab);
300}
301#else
302static int __init f2fs_create_casefold_cache(void) { return 0; }
303static void f2fs_destroy_casefold_cache(void) { }
5aba5430
DR		 304#endif
305
7e65be49
JK		 306static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
307{
9a9aecaa
DR		 308 block_t limit = min((sbi->user_block_count << 1) / 1000,
309 sbi->user_block_count - sbi->reserved_blocks);
7e65be49
JK		 310
311 /* limit is 0.2% */
63189b78
CY		 312 if (test_opt(sbi, RESERVE_ROOT) &&
313 F2FS_OPTION(sbi).root_reserved_blocks > limit) {
314 F2FS_OPTION(sbi).root_reserved_blocks = limit;
dcbb4c10
JP		 315 f2fs_info(sbi, "Reduce reserved blocks for root = %u",
316 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 317 }
7c2e5963 318 if (!test_opt(sbi, RESERVE_ROOT) &&
63189b78 319 (!uid_eq(F2FS_OPTION(sbi).s_resuid,
7c2e5963 320 make_kuid(&init_user_ns, F2FS_DEF_RESUID)) ||
63189b78 321 !gid_eq(F2FS_OPTION(sbi).s_resgid,
7c2e5963 322 make_kgid(&init_user_ns, F2FS_DEF_RESGID))))
dcbb4c10
JP		 323 f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
324 from_kuid_munged(&init_user_ns,
325 F2FS_OPTION(sbi).s_resuid),
326 from_kgid_munged(&init_user_ns,
327 F2FS_OPTION(sbi).s_resgid));
7e65be49
JK		 328}
329
1ae18f71
JK		 330static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi)
331{
332 if (!F2FS_OPTION(sbi).unusable_cap_perc)
333 return;
334
335 if (F2FS_OPTION(sbi).unusable_cap_perc == 100)
336 F2FS_OPTION(sbi).unusable_cap = sbi->user_block_count;
337 else
338 F2FS_OPTION(sbi).unusable_cap = (sbi->user_block_count / 100) *
339 F2FS_OPTION(sbi).unusable_cap_perc;
340
341 f2fs_info(sbi, "Adjust unusable cap for checkpoint=disable = %u / %u%%",
342 F2FS_OPTION(sbi).unusable_cap,
343 F2FS_OPTION(sbi).unusable_cap_perc);
344}
345
aff063e2
JK		 346static void init_once(void *foo)
347{
348 struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
349
aff063e2
JK		 350 inode_init_once(&fi->vfs_inode);
351}
352
4b2414d0
CY		 353#ifdef CONFIG_QUOTA
354static const char * const quotatypes[] = INITQFNAMES;
355#define QTYPE2NAME(t) (quotatypes[t])
356static int f2fs_set_qf_name(struct super_block *sb, int qtype,
357 substring_t *args)
358{
359 struct f2fs_sb_info *sbi = F2FS_SB(sb);
360 char *qname;
361 int ret = -EINVAL;
362
63189b78 363 if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 364 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 365 return -EINVAL;
366 }
7beb01f7 367 if (f2fs_sb_has_quota_ino(sbi)) {
dcbb4c10 368 f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name");
ea676733
JK		 369 return 0;
370 }
371
4b2414d0
CY		 372 qname = match_strdup(args);
373 if (!qname) {
dcbb4c10 374 f2fs_err(sbi, "Not enough memory for storing quotafile name");
f365c6cc 375 return -ENOMEM;
4b2414d0 376 }
63189b78
CY		 377 if (F2FS_OPTION(sbi).s_qf_names[qtype]) {
378 if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0)
4b2414d0
CY		 379 ret = 0;
380 else
dcbb4c10 381 f2fs_err(sbi, "%s quota file already specified",
4b2414d0
CY		 382 QTYPE2NAME(qtype));
383 goto errout;
384 }
385 if (strchr(qname, '/')) {
dcbb4c10 386 f2fs_err(sbi, "quotafile must be on filesystem root");
4b2414d0
CY		 387 goto errout;
388 }
63189b78 389 F2FS_OPTION(sbi).s_qf_names[qtype] = qname;
4b2414d0
CY		 390 set_opt(sbi, QUOTA);
391 return 0;
392errout:
ba87a45c 393 kfree(qname);
4b2414d0
CY		 394 return ret;
395}
396
397static int f2fs_clear_qf_name(struct super_block *sb, int qtype)
398{
399 struct f2fs_sb_info *sbi = F2FS_SB(sb);
400
63189b78 401 if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 402 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 403 return -EINVAL;
404 }
ba87a45c 405 kfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
63189b78 406 F2FS_OPTION(sbi).s_qf_names[qtype] = NULL;
4b2414d0
CY		 407 return 0;
408}
409
410static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
411{
412 /*
413 * We do the test below only for project quotas. 'usrquota' and
414 * 'grpquota' mount options are allowed even without quota feature
415 * to support legacy quotas in quota files.
416 */
7beb01f7 417 if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) {
dcbb4c10 418 f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement.");
4b2414d0
CY		 419 return -1;
420 }
63189b78
CY		 421 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
422 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
423 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) {
424 if (test_opt(sbi, USRQUOTA) &&
425 F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
4b2414d0
CY		 426 clear_opt(sbi, USRQUOTA);
427
63189b78
CY		 428 if (test_opt(sbi, GRPQUOTA) &&
429 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
4b2414d0
CY		 430 clear_opt(sbi, GRPQUOTA);
431
63189b78
CY		 432 if (test_opt(sbi, PRJQUOTA) &&
433 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4b2414d0
CY		 434 clear_opt(sbi, PRJQUOTA);
435
436 if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) ||
437 test_opt(sbi, PRJQUOTA)) {
dcbb4c10 438 f2fs_err(sbi, "old and new quota format mixing");
4b2414d0
CY		 439 return -1;
440 }
441
63189b78 442 if (!F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 443 f2fs_err(sbi, "journaled quota format not specified");
4b2414d0
CY		 444 return -1;
445 }
446 }
ea676733 447
7beb01f7 448 if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 449 f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt");
63189b78 450 F2FS_OPTION(sbi).s_jquota_fmt = 0;
ea676733 451 }
4b2414d0
CY		 452 return 0;
453}
454#endif
455
ed318a6c
EB		 456static int f2fs_set_test_dummy_encryption(struct super_block *sb,
457 const char *opt,
458 const substring_t *arg,
459 bool is_remount)
460{
461 struct f2fs_sb_info *sbi = F2FS_SB(sb);
462#ifdef CONFIG_FS_ENCRYPTION
463 int err;
464
465 if (!f2fs_sb_has_encrypt(sbi)) {
466 f2fs_err(sbi, "Encrypt feature is off");
467 return -EINVAL;
468 }
469
470 /*
471 * This mount option is just for testing, and it's not worthwhile to
472 * implement the extra complexity (e.g. RCU protection) that would be
473 * needed to allow it to be set or changed during remount. We do allow
474 * it to be specified during remount, but only if there is no change.
475 */
ac4acb1f 476 if (is_remount && !F2FS_OPTION(sbi).dummy_enc_policy.policy) {
ed318a6c
EB		 477 f2fs_warn(sbi, "Can't set test_dummy_encryption on remount");
478 return -EINVAL;
479 }
480 err = fscrypt_set_test_dummy_encryption(
c8c868ab 481 sb, arg->from, &F2FS_OPTION(sbi).dummy_enc_policy);
ed318a6c
EB		 482 if (err) {
483 if (err == -EEXIST)
484 f2fs_warn(sbi,
485 "Can't change test_dummy_encryption on remount");
486 else if (err == -EINVAL)
487 f2fs_warn(sbi, "Value of option \"%s\" is unrecognized",
488 opt);
489 else
490 f2fs_warn(sbi, "Error processing option \"%s\" [%d]",
491 opt, err);
492 return -EINVAL;
493 }
494 f2fs_warn(sbi, "Test dummy encryption mode enabled");
495#else
496 f2fs_warn(sbi, "Test dummy encryption mount option ignored");
497#endif
498 return 0;
499}
500
3fde13f8 501#ifdef CONFIG_F2FS_FS_COMPRESSION
151b1982
FC		 502/*
503 * 1. The same extension name cannot not appear in both compress and non-compress extension
504 * at the same time.
505 * 2. If the compress extension specifies all files, the types specified by the non-compress
506 * extension will be treated as special cases and will not be compressed.
507 * 3. Don't allow the non-compress extension specifies all files.
508 */
509static int f2fs_test_compress_extension(struct f2fs_sb_info *sbi)
510{
511 unsigned char (*ext)[F2FS_EXTENSION_LEN];
512 unsigned char (*noext)[F2FS_EXTENSION_LEN];
513 int ext_cnt, noext_cnt, index = 0, no_index = 0;
514
515 ext = F2FS_OPTION(sbi).extensions;
516 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
517 noext = F2FS_OPTION(sbi).noextensions;
518 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
519
520 if (!noext_cnt)
521 return 0;
522
523 for (no_index = 0; no_index < noext_cnt; no_index++) {
524 if (!strcasecmp("*", noext[no_index])) {
525 f2fs_info(sbi, "Don't allow the nocompress extension specifies all files");
526 return -EINVAL;
527 }
528 for (index = 0; index < ext_cnt; index++) {
529 if (!strcasecmp(ext[index], noext[no_index])) {
530 f2fs_info(sbi, "Don't allow the same extension %s appear in both compress and nocompress extension",
531 ext[index]);
532 return -EINVAL;
533 }
534 }
535 }
536 return 0;
537}
538
3fde13f8
CY		 539#ifdef CONFIG_F2FS_FS_LZ4
540static int f2fs_set_lz4hc_level(struct f2fs_sb_info *sbi, const char *str)
541{
542#ifdef CONFIG_F2FS_FS_LZ4HC
543 unsigned int level;
544#endif
545
546 if (strlen(str) == 3) {
547 F2FS_OPTION(sbi).compress_level = 0;
548 return 0;
549 }
550
551#ifdef CONFIG_F2FS_FS_LZ4HC
552 str += 3;
553
554 if (str[0] != ':') {
555 f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
556 return -EINVAL;
557 }
558 if (kstrtouint(str + 1, 10, &level))
559 return -EINVAL;
560
561 if (level < LZ4HC_MIN_CLEVEL || level > LZ4HC_MAX_CLEVEL) {
562 f2fs_info(sbi, "invalid lz4hc compress level: %d", level);
563 return -EINVAL;
564 }
565
566 F2FS_OPTION(sbi).compress_level = level;
567 return 0;
568#else
569 f2fs_info(sbi, "kernel doesn't support lz4hc compression");
570 return -EINVAL;
571#endif
572}
573#endif
574
575#ifdef CONFIG_F2FS_FS_ZSTD
576static int f2fs_set_zstd_level(struct f2fs_sb_info *sbi, const char *str)
577{
578 unsigned int level;
579 int len = 4;
580
581 if (strlen(str) == len) {
582 F2FS_OPTION(sbi).compress_level = 0;
583 return 0;
584 }
585
586 str += len;
587
588 if (str[0] != ':') {
589 f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
590 return -EINVAL;
591 }
592 if (kstrtouint(str + 1, 10, &level))
593 return -EINVAL;
594
595 if (!level || level > ZSTD_maxCLevel()) {
596 f2fs_info(sbi, "invalid zstd compress level: %d", level);
597 return -EINVAL;
598 }
599
600 F2FS_OPTION(sbi).compress_level = level;
601 return 0;
602}
603#endif
604#endif
605
ed318a6c 606static int parse_options(struct super_block *sb, char *options, bool is_remount)
696c018c
NJ		 607{
608 struct f2fs_sb_info *sbi = F2FS_SB(sb);
609 substring_t args[MAX_OPT_ARGS];
1f0b067b 610#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 611 unsigned char (*ext)[F2FS_EXTENSION_LEN];
151b1982
FC		 612 unsigned char (*noext)[F2FS_EXTENSION_LEN];
613 int ext_cnt, noext_cnt;
1f0b067b 614#endif
696c018c 615 char *p, *name;
1f0b067b 616 int arg = 0;
7c2e5963
JK		 617 kuid_t uid;
618 kgid_t gid;
4b2414d0 619 int ret;
696c018c
NJ		 620
621 if (!options)
a7d9fe3c 622 goto default_check;
696c018c
NJ		 623
624 while ((p = strsep(&options, ",")) != NULL) {
625 int token;
5f029c04 626
696c018c
NJ		 627 if (!*p)
628 continue;
629 /*
630 * Initialize args struct so we know whether arg was
631 * found; some options take optional arguments.
632 */
633 args[0].to = args[0].from = NULL;
634 token = match_token(p, f2fs_tokens, args);
635
636 switch (token) {
637 case Opt_gc_background:
638 name = match_strdup(&args[0]);
639
640 if (!name)
641 return -ENOMEM;
3c57f751 642 if (!strcmp(name, "on")) {
bbbc34fd 643 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
3c57f751 644 } else if (!strcmp(name, "off")) {
bbbc34fd 645 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
3c57f751 646 } else if (!strcmp(name, "sync")) {
bbbc34fd 647 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
6aefd93b 648 } else {
ba87a45c 649 kfree(name);
696c018c
NJ		 650 return -EINVAL;
651 }
ba87a45c 652 kfree(name);
696c018c
NJ		 653 break;
654 case Opt_disable_roll_forward:
655 set_opt(sbi, DISABLE_ROLL_FORWARD);
656 break;
2d834bf9
JK		 657 case Opt_norecovery:
658 /* this option mounts f2fs with ro */
a9117eca 659 set_opt(sbi, NORECOVERY);
2d834bf9
JK		 660 if (!f2fs_readonly(sb))
661 return -EINVAL;
662 break;
696c018c 663 case Opt_discard:
7d20c8ab 664 set_opt(sbi, DISCARD);
696c018c 665 break;
64058be9 666 case Opt_nodiscard:
7beb01f7 667 if (f2fs_sb_has_blkzoned(sbi)) {
dcbb4c10 668 f2fs_warn(sbi, "discard is required for zoned block devices");
96ba2dec
DLM		 669 return -EINVAL;
670 }
64058be9 671 clear_opt(sbi, DISCARD);
487df616 672 break;
696c018c
NJ		 673 case Opt_noheap:
674 set_opt(sbi, NOHEAP);
675 break;
7a20b8a6
JK		 676 case Opt_heap:
677 clear_opt(sbi, NOHEAP);
678 break;
696c018c 679#ifdef CONFIG_F2FS_FS_XATTR
4058c511
KA		 680 case Opt_user_xattr:
681 set_opt(sbi, XATTR_USER);
682 break;
696c018c
NJ		 683 case Opt_nouser_xattr:
684 clear_opt(sbi, XATTR_USER);
685 break;
444c580f
JK		 686 case Opt_inline_xattr:
687 set_opt(sbi, INLINE_XATTR);
688 break;
23cf7212
CY		 689 case Opt_noinline_xattr:
690 clear_opt(sbi, INLINE_XATTR);
691 break;
6afc662e
CY		 692 case Opt_inline_xattr_size:
693 if (args->from && match_int(args, &arg))
694 return -EINVAL;
695 set_opt(sbi, INLINE_XATTR_SIZE);
63189b78 696 F2FS_OPTION(sbi).inline_xattr_size = arg;
6afc662e 697 break;
696c018c 698#else
4058c511 699 case Opt_user_xattr:
dcbb4c10 700 f2fs_info(sbi, "user_xattr options not supported");
4058c511 701 break;
696c018c 702 case Opt_nouser_xattr:
dcbb4c10 703 f2fs_info(sbi, "nouser_xattr options not supported");
696c018c 704 break;
444c580f 705 case Opt_inline_xattr:
dcbb4c10 706 f2fs_info(sbi, "inline_xattr options not supported");
444c580f 707 break;
23cf7212 708 case Opt_noinline_xattr:
dcbb4c10 709 f2fs_info(sbi, "noinline_xattr options not supported");
23cf7212 710 break;
696c018c
NJ		 711#endif
712#ifdef CONFIG_F2FS_FS_POSIX_ACL
4058c511
KA		 713 case Opt_acl:
714 set_opt(sbi, POSIX_ACL);
715 break;
696c018c
NJ		 716 case Opt_noacl:
717 clear_opt(sbi, POSIX_ACL);
718 break;
719#else
4058c511 720 case Opt_acl:
dcbb4c10 721 f2fs_info(sbi, "acl options not supported");
4058c511 722 break;
696c018c 723 case Opt_noacl:
dcbb4c10 724 f2fs_info(sbi, "noacl options not supported");
696c018c
NJ		 725 break;
726#endif
727 case Opt_active_logs:
728 if (args->from && match_int(args, &arg))
729 return -EINVAL;
d0b9e42a
CY		 730 if (arg != 2 && arg != 4 &&
731 arg != NR_CURSEG_PERSIST_TYPE)
696c018c 732 return -EINVAL;
63189b78 733 F2FS_OPTION(sbi).active_logs = arg;
696c018c
NJ		 734 break;
735 case Opt_disable_ext_identify:
736 set_opt(sbi, DISABLE_EXT_IDENTIFY);
737 break;
8274de77
HL		 738 case Opt_inline_data:
739 set_opt(sbi, INLINE_DATA);
740 break;
5efd3c6f
CY		 741 case Opt_inline_dentry:
742 set_opt(sbi, INLINE_DENTRY);
743 break;
97c1794a
CY		 744 case Opt_noinline_dentry:
745 clear_opt(sbi, INLINE_DENTRY);
746 break;
6b4afdd7
JK		 747 case Opt_flush_merge:
748 set_opt(sbi, FLUSH_MERGE);
749 break;
69e9e427
JK		 750 case Opt_noflush_merge:
751 clear_opt(sbi, FLUSH_MERGE);
752 break;
0f7b2abd
JK		 753 case Opt_nobarrier:
754 set_opt(sbi, NOBARRIER);
755 break;
d5053a34
JK		 756 case Opt_fastboot:
757 set_opt(sbi, FASTBOOT);
758 break;
89672159
CY		 759 case Opt_extent_cache:
760 set_opt(sbi, EXTENT_CACHE);
761 break;
7daaea25
JK		 762 case Opt_noextent_cache:
763 clear_opt(sbi, EXTENT_CACHE);
764 break;
75342797
WL		 765 case Opt_noinline_data:
766 clear_opt(sbi, INLINE_DATA);
767 break;
343f40f0
CY		 768 case Opt_data_flush:
769 set_opt(sbi, DATA_FLUSH);
770 break;
7e65be49
JK		 771 case Opt_reserve_root:
772 if (args->from && match_int(args, &arg))
773 return -EINVAL;
774 if (test_opt(sbi, RESERVE_ROOT)) {
dcbb4c10
JP		 775 f2fs_info(sbi, "Preserve previous reserve_root=%u",
776 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 777 } else {
63189b78 778 F2FS_OPTION(sbi).root_reserved_blocks = arg;
7e65be49
JK		 779 set_opt(sbi, RESERVE_ROOT);
780 }
781 break;
7c2e5963
JK		 782 case Opt_resuid:
783 if (args->from && match_int(args, &arg))
784 return -EINVAL;
785 uid = make_kuid(current_user_ns(), arg);
786 if (!uid_valid(uid)) {
dcbb4c10 787 f2fs_err(sbi, "Invalid uid value %d", arg);
7c2e5963
JK		 788 return -EINVAL;
789 }
63189b78 790 F2FS_OPTION(sbi).s_resuid = uid;
7c2e5963
JK		 791 break;
792 case Opt_resgid:
793 if (args->from && match_int(args, &arg))
794 return -EINVAL;
795 gid = make_kgid(current_user_ns(), arg);
796 if (!gid_valid(gid)) {
dcbb4c10 797 f2fs_err(sbi, "Invalid gid value %d", arg);
7c2e5963
JK		 798 return -EINVAL;
799 }
63189b78 800 F2FS_OPTION(sbi).s_resgid = gid;
7c2e5963 801 break;
36abef4e
JK		 802 case Opt_mode:
803 name = match_strdup(&args[0]);
804
805 if (!name)
806 return -ENOMEM;
3c57f751 807 if (!strcmp(name, "adaptive")) {
7beb01f7 808 if (f2fs_sb_has_blkzoned(sbi)) {
dcbb4c10 809 f2fs_warn(sbi, "adaptive mode is not allowed with zoned block device feature");
ba87a45c 810 kfree(name);
3adc57e9
DLM		 811 return -EINVAL;
812 }
b0332a0f 813 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
3c57f751 814 } else if (!strcmp(name, "lfs")) {
b0332a0f 815 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
36abef4e 816 } else {
ba87a45c 817 kfree(name);
36abef4e
JK		 818 return -EINVAL;
819 }
ba87a45c 820 kfree(name);
36abef4e 821 break;
ec91538d
JK		 822 case Opt_io_size_bits:
823 if (args->from && match_int(args, &arg))
824 return -EINVAL;
a8affc03 825 if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_VECS)) {
dcbb4c10 826 f2fs_warn(sbi, "Not support %d, larger than %d",
a8affc03 827 1 << arg, BIO_MAX_VECS);
ec91538d
JK		 828 return -EINVAL;
829 }
63189b78 830 F2FS_OPTION(sbi).write_io_size_bits = arg;
ec91538d 831 break;
4cb037ec 832#ifdef CONFIG_F2FS_FAULT_INJECTION
73faec4d
JK		 833 case Opt_fault_injection:
834 if (args->from && match_int(args, &arg))
835 return -EINVAL;
d494500a
CY		 836 f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
837 set_opt(sbi, FAULT_INJECTION);
d494500a 838 break;
4cb037ec 839
d494500a
CY		 840 case Opt_fault_type:
841 if (args->from && match_int(args, &arg))
842 return -EINVAL;
d494500a 843 f2fs_build_fault_attr(sbi, 0, arg);
0cc0dec2 844 set_opt(sbi, FAULT_INJECTION);
4cb037ec 845 break;
73faec4d 846#else
4cb037ec 847 case Opt_fault_injection:
dcbb4c10 848 f2fs_info(sbi, "fault_injection options not supported");
73faec4d 849 break;
4cb037ec
CX		 850
851 case Opt_fault_type:
dcbb4c10 852 f2fs_info(sbi, "fault_type options not supported");
4cb037ec
CX		 853 break;
854#endif
6d94c74a 855 case Opt_lazytime:
1751e8a6 856 sb->s_flags |= SB_LAZYTIME;
6d94c74a
JK		 857 break;
858 case Opt_nolazytime:
1751e8a6 859 sb->s_flags &= ~SB_LAZYTIME;
6d94c74a 860 break;
0abd675e 861#ifdef CONFIG_QUOTA
4b2414d0 862 case Opt_quota:
0abd675e
CY		 863 case Opt_usrquota:
864 set_opt(sbi, USRQUOTA);
865 break;
866 case Opt_grpquota:
867 set_opt(sbi, GRPQUOTA);
868 break;
5c57132e
CY		 869 case Opt_prjquota:
870 set_opt(sbi, PRJQUOTA);
871 break;
4b2414d0
CY		 872 case Opt_usrjquota:
873 ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]);
874 if (ret)
875 return ret;
876 break;
877 case Opt_grpjquota:
878 ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]);
879 if (ret)
880 return ret;
881 break;
882 case Opt_prjjquota:
883 ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]);
884 if (ret)
885 return ret;
886 break;
887 case Opt_offusrjquota:
888 ret = f2fs_clear_qf_name(sb, USRQUOTA);
889 if (ret)
890 return ret;
891 break;
892 case Opt_offgrpjquota:
893 ret = f2fs_clear_qf_name(sb, GRPQUOTA);
894 if (ret)
895 return ret;
896 break;
897 case Opt_offprjjquota:
898 ret = f2fs_clear_qf_name(sb, PRJQUOTA);
899 if (ret)
900 return ret;
901 break;
902 case Opt_jqfmt_vfsold:
63189b78 903 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
4b2414d0
CY		 904 break;
905 case Opt_jqfmt_vfsv0:
63189b78 906 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
4b2414d0
CY		 907 break;
908 case Opt_jqfmt_vfsv1:
63189b78 909 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
4b2414d0
CY		 910 break;
911 case Opt_noquota:
912 clear_opt(sbi, QUOTA);
913 clear_opt(sbi, USRQUOTA);
914 clear_opt(sbi, GRPQUOTA);
915 clear_opt(sbi, PRJQUOTA);
916 break;
0abd675e 917#else
4b2414d0 918 case Opt_quota:
0abd675e
CY		 919 case Opt_usrquota:
920 case Opt_grpquota:
5c57132e 921 case Opt_prjquota:
4b2414d0
CY		 922 case Opt_usrjquota:
923 case Opt_grpjquota:
924 case Opt_prjjquota:
925 case Opt_offusrjquota:
926 case Opt_offgrpjquota:
927 case Opt_offprjjquota:
928 case Opt_jqfmt_vfsold:
929 case Opt_jqfmt_vfsv0:
930 case Opt_jqfmt_vfsv1:
931 case Opt_noquota:
dcbb4c10 932 f2fs_info(sbi, "quota operations not supported");
0abd675e
CY		 933 break;
934#endif
0cdd3195
HL		 935 case Opt_whint:
936 name = match_strdup(&args[0]);
937 if (!name)
938 return -ENOMEM;
3c57f751 939 if (!strcmp(name, "user-based")) {
63189b78 940 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER;
3c57f751 941 } else if (!strcmp(name, "off")) {
63189b78 942 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
3c57f751 943 } else if (!strcmp(name, "fs-based")) {
63189b78 944 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS;
0cdd3195 945 } else {
ba87a45c 946 kfree(name);
0cdd3195
HL		 947 return -EINVAL;
948 }
ba87a45c 949 kfree(name);
0cdd3195 950 break;
07939627
JK		 951 case Opt_alloc:
952 name = match_strdup(&args[0]);
953 if (!name)
954 return -ENOMEM;
955
3c57f751 956 if (!strcmp(name, "default")) {
63189b78 957 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
3c57f751 958 } else if (!strcmp(name, "reuse")) {
63189b78 959 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
07939627 960 } else {
ba87a45c 961 kfree(name);
07939627
JK		 962 return -EINVAL;
963 }
ba87a45c 964 kfree(name);
07939627 965 break;
93cf93f1
JZ		 966 case Opt_fsync:
967 name = match_strdup(&args[0]);
968 if (!name)
969 return -ENOMEM;
3c57f751 970 if (!strcmp(name, "posix")) {
63189b78 971 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
3c57f751 972 } else if (!strcmp(name, "strict")) {
63189b78 973 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
3c57f751 974 } else if (!strcmp(name, "nobarrier")) {
d6290814
JK		 975 F2FS_OPTION(sbi).fsync_mode =
976 FSYNC_MODE_NOBARRIER;
93cf93f1 977 } else {
ba87a45c 978 kfree(name);
93cf93f1
JZ		 979 return -EINVAL;
980 }
ba87a45c 981 kfree(name);
93cf93f1 982 break;
ff62af20 983 case Opt_test_dummy_encryption:
ed318a6c
EB		 984 ret = f2fs_set_test_dummy_encryption(sb, p, &args[0],
985 is_remount);
986 if (ret)
987 return ret;
ff62af20 988 break;
27aacd28
ST		 989 case Opt_inlinecrypt:
990#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
991 sb->s_flags |= SB_INLINECRYPT;
992#else
993 f2fs_info(sbi, "inline encryption not supported");
994#endif
995 break;
4d3aed70
DR		 996 case Opt_checkpoint_disable_cap_perc:
997 if (args->from && match_int(args, &arg))
4354994f 998 return -EINVAL;
4d3aed70
DR		 999 if (arg < 0 || arg > 100)
1000 return -EINVAL;
1ae18f71 1001 F2FS_OPTION(sbi).unusable_cap_perc = arg;
4d3aed70
DR		 1002 set_opt(sbi, DISABLE_CHECKPOINT);
1003 break;
1004 case Opt_checkpoint_disable_cap:
1005 if (args->from && match_int(args, &arg))
1006 return -EINVAL;
1007 F2FS_OPTION(sbi).unusable_cap = arg;
1008 set_opt(sbi, DISABLE_CHECKPOINT);
1009 break;
1010 case Opt_checkpoint_disable:
1011 set_opt(sbi, DISABLE_CHECKPOINT);
1012 break;
1013 case Opt_checkpoint_enable:
1014 clear_opt(sbi, DISABLE_CHECKPOINT);
4354994f 1015 break;
261eeb9c
DJ		 1016 case Opt_checkpoint_merge:
1017 set_opt(sbi, MERGE_CHECKPOINT);
1018 break;
1019 case Opt_nocheckpoint_merge:
1020 clear_opt(sbi, MERGE_CHECKPOINT);
1021 break;
1f0b067b 1022#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1023 case Opt_compress_algorithm:
1024 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1025 f2fs_info(sbi, "Image doesn't support compression");
1026 break;
4c8ff709
CY		 1027 }
1028 name = match_strdup(&args[0]);
1029 if (!name)
1030 return -ENOMEM;
3c57f751 1031 if (!strcmp(name, "lzo")) {
32be0e97 1032#ifdef CONFIG_F2FS_FS_LZO
3fde13f8 1033 F2FS_OPTION(sbi).compress_level = 0;
4c8ff709
CY		 1034 F2FS_OPTION(sbi).compress_algorithm =
1035 COMPRESS_LZO;
32be0e97
CY		 1036#else
1037 f2fs_info(sbi, "kernel doesn't support lzo compression");
1038#endif
3fde13f8 1039 } else if (!strncmp(name, "lz4", 3)) {
32be0e97 1040#ifdef CONFIG_F2FS_FS_LZ4
3fde13f8
CY		 1041 ret = f2fs_set_lz4hc_level(sbi, name);
1042 if (ret) {
1043 kfree(name);
1044 return -EINVAL;
1045 }
4c8ff709
CY		 1046 F2FS_OPTION(sbi).compress_algorithm =
1047 COMPRESS_LZ4;
32be0e97
CY		 1048#else
1049 f2fs_info(sbi, "kernel doesn't support lz4 compression");
1050#endif
3fde13f8 1051 } else if (!strncmp(name, "zstd", 4)) {
32be0e97 1052#ifdef CONFIG_F2FS_FS_ZSTD
3fde13f8
CY		 1053 ret = f2fs_set_zstd_level(sbi, name);
1054 if (ret) {
1055 kfree(name);
1056 return -EINVAL;
1057 }
50cfa66f
CY		 1058 F2FS_OPTION(sbi).compress_algorithm =
1059 COMPRESS_ZSTD;
32be0e97
CY		 1060#else
1061 f2fs_info(sbi, "kernel doesn't support zstd compression");
1062#endif
6d92b201 1063 } else if (!strcmp(name, "lzo-rle")) {
32be0e97 1064#ifdef CONFIG_F2FS_FS_LZORLE
3fde13f8 1065 F2FS_OPTION(sbi).compress_level = 0;
6d92b201
CY		 1066 F2FS_OPTION(sbi).compress_algorithm =
1067 COMPRESS_LZORLE;
32be0e97
CY		 1068#else
1069 f2fs_info(sbi, "kernel doesn't support lzorle compression");
1070#endif
4c8ff709
CY		 1071 } else {
1072 kfree(name);
1073 return -EINVAL;
1074 }
1075 kfree(name);
1076 break;
1077 case Opt_compress_log_size:
1078 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1079 f2fs_info(sbi, "Image doesn't support compression");
1080 break;
4c8ff709
CY		 1081 }
1082 if (args->from && match_int(args, &arg))
1083 return -EINVAL;
1084 if (arg < MIN_COMPRESS_LOG_SIZE ||
1085 arg > MAX_COMPRESS_LOG_SIZE) {
1086 f2fs_err(sbi,
1087 "Compress cluster log size is out of range");
1088 return -EINVAL;
1089 }
1090 F2FS_OPTION(sbi).compress_log_size = arg;
1091 break;
1092 case Opt_compress_extension:
1093 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1094 f2fs_info(sbi, "Image doesn't support compression");
1095 break;
4c8ff709
CY		 1096 }
1097 name = match_strdup(&args[0]);
1098 if (!name)
1099 return -ENOMEM;
1100
1101 ext = F2FS_OPTION(sbi).extensions;
1102 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
1103
1104 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1105 ext_cnt >= COMPRESS_EXT_NUM) {
1106 f2fs_err(sbi,
1107 "invalid extension length/number");
1108 kfree(name);
1109 return -EINVAL;
1110 }
1111
1112 strcpy(ext[ext_cnt], name);
1113 F2FS_OPTION(sbi).compress_ext_cnt++;
1114 kfree(name);
1115 break;
151b1982
FC		 1116 case Opt_nocompress_extension:
1117 if (!f2fs_sb_has_compression(sbi)) {
1118 f2fs_info(sbi, "Image doesn't support compression");
1119 break;
1120 }
1121 name = match_strdup(&args[0]);
1122 if (!name)
1123 return -ENOMEM;
1124
1125 noext = F2FS_OPTION(sbi).noextensions;
1126 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
1127
1128 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1129 noext_cnt >= COMPRESS_EXT_NUM) {
1130 f2fs_err(sbi,
1131 "invalid extension length/number");
1132 kfree(name);
1133 return -EINVAL;
1134 }
1135
1136 strcpy(noext[noext_cnt], name);
1137 F2FS_OPTION(sbi).nocompress_ext_cnt++;
1138 kfree(name);
1139 break;
b28f047b
CY		 1140 case Opt_compress_chksum:
1141 F2FS_OPTION(sbi).compress_chksum = true;
1142 break;
602a16d5
DJ		 1143 case Opt_compress_mode:
1144 name = match_strdup(&args[0]);
1145 if (!name)
1146 return -ENOMEM;
1147 if (!strcmp(name, "fs")) {
1148 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
1149 } else if (!strcmp(name, "user")) {
1150 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
1151 } else {
1152 kfree(name);
1153 return -EINVAL;
1154 }
1155 kfree(name);
1156 break;
6ce19aff
CY		 1157 case Opt_compress_cache:
1158 set_opt(sbi, COMPRESS_CACHE);
1159 break;
1f0b067b
CY		 1160#else
1161 case Opt_compress_algorithm:
1162 case Opt_compress_log_size:
1163 case Opt_compress_extension:
151b1982 1164 case Opt_nocompress_extension:
b28f047b 1165 case Opt_compress_chksum:
602a16d5 1166 case Opt_compress_mode:
6ce19aff 1167 case Opt_compress_cache:
1f0b067b
CY		 1168 f2fs_info(sbi, "compression options not supported");
1169 break;
1170#endif
093749e2
CY		 1171 case Opt_atgc:
1172 set_opt(sbi, ATGC);
1173 break;
5911d2d1
CY		 1174 case Opt_gc_merge:
1175 set_opt(sbi, GC_MERGE);
1176 break;
1177 case Opt_nogc_merge:
1178 clear_opt(sbi, GC_MERGE);
1179 break;
4f993264
CY		 1180 case Opt_discard_unit:
1181 name = match_strdup(&args[0]);
1182 if (!name)
1183 return -ENOMEM;
1184 if (!strcmp(name, "block")) {
1185 F2FS_OPTION(sbi).discard_unit =
1186 DISCARD_UNIT_BLOCK;
1187 } else if (!strcmp(name, "segment")) {
1188 F2FS_OPTION(sbi).discard_unit =
1189 DISCARD_UNIT_SEGMENT;
1190 } else if (!strcmp(name, "section")) {
1191 F2FS_OPTION(sbi).discard_unit =
1192 DISCARD_UNIT_SECTION;
1193 } else {
1194 kfree(name);
1195 return -EINVAL;
1196 }
1197 kfree(name);
1198 break;
696c018c 1199 default:
dcbb4c10
JP		 1200 f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
1201 p);
696c018c
NJ		 1202 return -EINVAL;
1203 }
1204 }
a7d9fe3c 1205default_check:
4b2414d0
CY		 1206#ifdef CONFIG_QUOTA
1207 if (f2fs_check_quota_options(sbi))
1208 return -EINVAL;
00960c2c 1209#else
7beb01f7 1210 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1211 f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
00960c2c
SY		 1212 return -EINVAL;
1213 }
7beb01f7 1214 if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1215 f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
4ddc1b28
CY		 1216 return -EINVAL;
1217 }
4b2414d0 1218#endif
5aba5430
DR		 1219#ifndef CONFIG_UNICODE
1220 if (f2fs_sb_has_casefold(sbi)) {
1221 f2fs_err(sbi,
1222 "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
1223 return -EINVAL;
1224 }
1225#endif
d0660122
CY		 1226 /*
1227 * The BLKZONED feature indicates that the drive was formatted with
1228 * zone alignment optimization. This is optional for host-aware
1229 * devices, but mandatory for host-managed zoned block devices.
1230 */
1231#ifndef CONFIG_BLK_DEV_ZONED
1232 if (f2fs_sb_has_blkzoned(sbi)) {
1233 f2fs_err(sbi, "Zoned block device support is not enabled");
1234 return -EINVAL;
1235 }
1236#endif
4f993264
CY		 1237 if (f2fs_sb_has_blkzoned(sbi)) {
1238 if (F2FS_OPTION(sbi).discard_unit !=
1239 DISCARD_UNIT_SECTION) {
1240 f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default");
1241 F2FS_OPTION(sbi).discard_unit =
1242 DISCARD_UNIT_SECTION;
1243 }
1244 }
ec91538d 1245
151b1982
FC		 1246#ifdef CONFIG_F2FS_FS_COMPRESSION
1247 if (f2fs_test_compress_extension(sbi)) {
1248 f2fs_err(sbi, "invalid compress or nocompress extension");
1249 return -EINVAL;
1250 }
1251#endif
1252
b0332a0f 1253 if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) {
dcbb4c10
JP		 1254 f2fs_err(sbi, "Should set mode=lfs with %uKB-sized IO",
1255 F2FS_IO_SIZE_KB(sbi));
ec91538d
JK		 1256 return -EINVAL;
1257 }
6afc662e
CY		 1258
1259 if (test_opt(sbi, INLINE_XATTR_SIZE)) {
70db5b04
JK		 1260 int min_size, max_size;
1261
7beb01f7
CY		 1262 if (!f2fs_sb_has_extra_attr(sbi) ||
1263 !f2fs_sb_has_flexible_inline_xattr(sbi)) {
dcbb4c10 1264 f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
4d817ae0
CY		 1265 return -EINVAL;
1266 }
6afc662e 1267 if (!test_opt(sbi, INLINE_XATTR)) {
dcbb4c10 1268 f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
6afc662e
CY		 1269 return -EINVAL;
1270 }
70db5b04
JK		 1271
1272 min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32);
dd6c89b5 1273 max_size = MAX_INLINE_XATTR_SIZE;
70db5b04
JK		 1274
1275 if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
1276 F2FS_OPTION(sbi).inline_xattr_size > max_size) {
dcbb4c10
JP		 1277 f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
1278 min_size, max_size);
6afc662e
CY		 1279 return -EINVAL;
1280 }
1281 }
0cdd3195 1282
b0332a0f 1283 if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) {
833dcd35 1284 f2fs_err(sbi, "LFS not compatible with checkpoint=disable");
4354994f
DR		 1285 return -EINVAL;
1286 }
1287
0cdd3195 1288 /* Not pass down write hints if the number of active logs is lesser
d0b9e42a 1289 * than NR_CURSEG_PERSIST_TYPE.
0cdd3195 1290 */
63189b78
CY		 1291 if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE)
1292 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
a7d9fe3c
JK		 1293
1294 if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
1295 f2fs_err(sbi, "Allow to mount readonly mode only");
1296 return -EROFS;
1297 }
696c018c
NJ		 1298 return 0;
1299}
1300
aff063e2
JK		 1301static struct inode *f2fs_alloc_inode(struct super_block *sb)
1302{
1303 struct f2fs_inode_info *fi;
1304
32410577
CY		 1305 fi = f2fs_kmem_cache_alloc(f2fs_inode_cachep,
1306 GFP_F2FS_ZERO, false, F2FS_SB(sb));
aff063e2
JK		 1307 if (!fi)
1308 return NULL;
1309
1310 init_once((void *) fi);
1311
434720fa 1312 /* Initialize f2fs-specific inode info */
204706c7 1313 atomic_set(&fi->dirty_pages, 0);
c2759eba 1314 atomic_set(&fi->i_compr_blocks, 0);
d928bfbf 1315 init_rwsem(&fi->i_sem);
c10c9820 1316 spin_lock_init(&fi->i_size_lock);
2710fd7e 1317 INIT_LIST_HEAD(&fi->dirty_list);
0f18b462 1318 INIT_LIST_HEAD(&fi->gdirty_list);
57864ae5 1319 INIT_LIST_HEAD(&fi->inmem_ilist);
88b88a66
JK		 1320 INIT_LIST_HEAD(&fi->inmem_pages);
1321 mutex_init(&fi->inmem_lock);
b2532c69
CY		 1322 init_rwsem(&fi->i_gc_rwsem[READ]);
1323 init_rwsem(&fi->i_gc_rwsem[WRITE]);
5a3a2d83 1324 init_rwsem(&fi->i_mmap_sem);
27161f13 1325 init_rwsem(&fi->i_xattr_sem);
aff063e2 1326
ab9fa662
JK		 1327 /* Will be used by directory only */
1328 fi->i_dir_level = F2FS_SB(sb)->dir_level;
f2470371 1329
aff063e2
JK		 1330 return &fi->vfs_inode;
1331}
1332
531ad7d5
JK		 1333static int f2fs_drop_inode(struct inode *inode)
1334{
a8933b6b 1335 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
b8d96a30 1336 int ret;
a8933b6b
CY		 1337
1338 /*
1339 * during filesystem shutdown, if checkpoint is disabled,
1340 * drop useless meta/node dirty pages.
1341 */
1342 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1343 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1344 inode->i_ino == F2FS_META_INO(sbi)) {
1345 trace_f2fs_drop_inode(inode, 1);
1346 return 1;
1347 }
1348 }
1349
531ad7d5
JK		 1350 /*
1351 * This is to avoid a deadlock condition like below.
1352 * writeback_single_inode(inode)
1353 * - f2fs_write_data_page
1354 * - f2fs_gc -> iput -> evict
1355 * - inode_wait_for_writeback(inode)
1356 */
0f18b462 1357 if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) {
06e1bc05 1358 if (!inode->i_nlink && !is_bad_inode(inode)) {
3e72f721
JK		 1359 /* to avoid evict_inode call simultaneously */
1360 atomic_inc(&inode->i_count);
06e1bc05
JK		 1361 spin_unlock(&inode->i_lock);
1362
1363 /* some remained atomic pages should discarded */
1364 if (f2fs_is_atomic_file(inode))
4d57b86d 1365 f2fs_drop_inmem_pages(inode);
06e1bc05 1366
3e72f721
JK		 1367 /* should remain fi->extent_tree for writepage */
1368 f2fs_destroy_extent_node(inode);
1369
06e1bc05 1370 sb_start_intwrite(inode->i_sb);
fc9581c8 1371 f2fs_i_size_write(inode, 0);
06e1bc05 1372
a0770e13 1373 f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
1374 inode, NULL, 0, DATA);
1375 truncate_inode_pages_final(inode->i_mapping);
1376
06e1bc05 1377 if (F2FS_HAS_BLOCKS(inode))
9a449e9c 1378 f2fs_truncate(inode);
06e1bc05
JK		 1379
1380 sb_end_intwrite(inode->i_sb);
1381
06e1bc05 1382 spin_lock(&inode->i_lock);
3e72f721 1383 atomic_dec(&inode->i_count);
06e1bc05 1384 }
b8d96a30 1385 trace_f2fs_drop_inode(inode, 0);
531ad7d5 1386 return 0;
06e1bc05 1387 }
b8d96a30 1388 ret = generic_drop_inode(inode);
8ce589c7
EB		 1389 if (!ret)
1390 ret = fscrypt_drop_inode(inode);
b8d96a30
HP		 1391 trace_f2fs_drop_inode(inode, ret);
1392 return ret;
531ad7d5
JK		 1393}
1394
7c45729a 1395int f2fs_inode_dirtied(struct inode *inode, bool sync)
b3783873 1396{
0f18b462 1397 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7c45729a 1398 int ret = 0;
0f18b462 1399
0f18b462
JK		 1400 spin_lock(&sbi->inode_lock[DIRTY_META]);
1401 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
7c45729a
JK		 1402 ret = 1;
1403 } else {
1404 set_inode_flag(inode, FI_DIRTY_INODE);
1405 stat_inc_dirty_inode(sbi, DIRTY_META);
0f18b462 1406 }
7c45729a
JK		 1407 if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) {
1408 list_add_tail(&F2FS_I(inode)->gdirty_list,
0f18b462 1409 &sbi->inode_list[DIRTY_META]);
7c45729a
JK		 1410 inc_page_count(sbi, F2FS_DIRTY_IMETA);
1411 }
338bbfa0 1412 spin_unlock(&sbi->inode_lock[DIRTY_META]);
7c45729a 1413 return ret;
0f18b462
JK		 1414}
1415
1416void f2fs_inode_synced(struct inode *inode)
1417{
1418 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1419
1420 spin_lock(&sbi->inode_lock[DIRTY_META]);
1421 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) {
1422 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1423 return;
1424 }
7c45729a
JK		 1425 if (!list_empty(&F2FS_I(inode)->gdirty_list)) {
1426 list_del_init(&F2FS_I(inode)->gdirty_list);
1427 dec_page_count(sbi, F2FS_DIRTY_IMETA);
1428 }
0f18b462 1429 clear_inode_flag(inode, FI_DIRTY_INODE);
26de9b11 1430 clear_inode_flag(inode, FI_AUTO_RECOVER);
0f18b462 1431 stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META);
338bbfa0 1432 spin_unlock(&sbi->inode_lock[DIRTY_META]);
b3783873
JK		 1433}
1434
b56ab837
JK		 1435/*
1436 * f2fs_dirty_inode() is called from __mark_inode_dirty()
1437 *
1438 * We should call set_dirty_inode to write the dirty inode through write_inode.
1439 */
1440static void f2fs_dirty_inode(struct inode *inode, int flags)
1441{
1442 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1443
1444 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1445 inode->i_ino == F2FS_META_INO(sbi))
1446 return;
1447
b56ab837
JK		 1448 if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
1449 clear_inode_flag(inode, FI_AUTO_RECOVER);
1450
7c45729a 1451 f2fs_inode_dirtied(inode, false);
b56ab837
JK		 1452}
1453
d01718a0 1454static void f2fs_free_inode(struct inode *inode)
aff063e2 1455{
2c58d548 1456 fscrypt_free_inode(inode);
aff063e2
JK		 1457 kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
1458}
1459
523be8a6
JK		 1460static void destroy_percpu_info(struct f2fs_sb_info *sbi)
1461{
41382ec4 1462 percpu_counter_destroy(&sbi->alloc_valid_block_count);
513c5f37 1463 percpu_counter_destroy(&sbi->total_valid_inode_count);
523be8a6
JK		 1464}
1465
3c62be17
JK		 1466static void destroy_device_list(struct f2fs_sb_info *sbi)
1467{
1468 int i;
1469
1470 for (i = 0; i < sbi->s_ndevs; i++) {
1471 blkdev_put(FDEV(i).bdev, FMODE_EXCL);
1472#ifdef CONFIG_BLK_DEV_ZONED
95175daf 1473 kvfree(FDEV(i).blkz_seq);
de881df9 1474 kfree(FDEV(i).zone_capacity_blocks);
3c62be17
JK		 1475#endif
1476 }
5222595d 1477 kvfree(sbi->devs);
3c62be17
JK		 1478}
1479
aff063e2
JK		 1480static void f2fs_put_super(struct super_block *sb)
1481{
1482 struct f2fs_sb_info *sbi = F2FS_SB(sb);
a398101a 1483 int i;
cf5c759f 1484 bool dropped;
aff063e2 1485
99c787cf
LG		 1486 /* unregister procfs/sysfs entries in advance to avoid race case */
1487 f2fs_unregister_sysfs(sbi);
1488
0abd675e 1489 f2fs_quota_off_umount(sb);
aff063e2 1490
2658e50d
JK		 1491 /* prevent remaining shrinker jobs */
1492 mutex_lock(&sbi->umount_mutex);
1493
261eeb9c
DJ		 1494 /*
1495 * flush all issued checkpoints and stop checkpoint issue thread.
1496 * after then, all checkpoints should be done by each process context.
1497 */
1498 f2fs_stop_ckpt_thread(sbi);
1499
85dc2f2c
JK		 1500 /*
1501 * We don't need to do checkpoint when superblock is clean.
1502 * But, the previous checkpoint was not done by umount, it needs to do
1503 * clean checkpoint again.
1504 */
4354994f
DR		 1505 if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
1506 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
75ab4cb8
JK		 1507 struct cp_control cpc = {
1508 .reason = CP_UMOUNT,
1509 };
4d57b86d 1510 f2fs_write_checkpoint(sbi, &cpc);
75ab4cb8 1511 }
aff063e2 1512
4e6a8d9b 1513 /* be sure to wait for any on-going discard commands */
03f2c02d 1514 dropped = f2fs_issue_discard_timeout(sbi);
4e6a8d9b 1515
7d20c8ab
CY		 1516 if ((f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) &&
1517 !sbi->discard_blks && !dropped) {
1f43e2ad
CY		 1518 struct cp_control cpc = {
1519 .reason = CP_UMOUNT | CP_TRIMMED,
1520 };
4d57b86d 1521 f2fs_write_checkpoint(sbi, &cpc);
1f43e2ad
CY		 1522 }
1523
cf779cab
JK		 1524 /*
1525 * normally superblock is clean, so we need to release this.
1526 * In addition, EIO will skip do checkpoint, we need this as well.
1527 */
4d57b86d 1528 f2fs_release_ino_entry(sbi, true);
6f12ac25 1529
2658e50d
JK		 1530 f2fs_leave_shrinker(sbi);
1531 mutex_unlock(&sbi->umount_mutex);
1532
17c19120 1533 /* our cp_error case, we can wait for any writeback page */
b9109b0e 1534 f2fs_flush_merged_writes(sbi);
17c19120 1535
bf22c3cc 1536 f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
50fa53ec
CY		 1537
1538 f2fs_bug_on(sbi, sbi->fsync_node_num);
1539
6ce19aff
CY		 1540 f2fs_destroy_compress_inode(sbi);
1541
aff063e2 1542 iput(sbi->node_inode);
7c77bf7d
JK		 1543 sbi->node_inode = NULL;
1544
aff063e2 1545 iput(sbi->meta_inode);
7c77bf7d 1546 sbi->meta_inode = NULL;
aff063e2 1547
60aa4d55
ST		 1548 /*
1549 * iput() can update stat information, if f2fs_write_checkpoint()
1550 * above failed with error.
1551 */
1552 f2fs_destroy_stats(sbi);
1553
aff063e2 1554 /* destroy f2fs internal modules */
4d57b86d
CY		 1555 f2fs_destroy_node_manager(sbi);
1556 f2fs_destroy_segment_manager(sbi);
aff063e2 1557
4c8ff709
CY		 1558 f2fs_destroy_post_read_wq(sbi);
1559
5222595d 1560 kvfree(sbi->ckpt);
a398101a 1561
aff063e2 1562 sb->s_fs_info = NULL;
43b6573b
KM		 1563 if (sbi->s_chksum_driver)
1564 crypto_free_shash(sbi->s_chksum_driver);
742532d1 1565 kfree(sbi->raw_super);
523be8a6 1566
3c62be17 1567 destroy_device_list(sbi);
31083031 1568 f2fs_destroy_page_array_cache(sbi);
a999150f 1569 f2fs_destroy_xattr_caches(sbi);
b6895e8f 1570 mempool_destroy(sbi->write_io_dummy);
4b2414d0
CY		 1571#ifdef CONFIG_QUOTA
1572 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 1573 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 1574#endif
ac4acb1f 1575 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
523be8a6 1576 destroy_percpu_info(sbi);
a4b68176 1577 f2fs_destroy_iostat(sbi);
a912b54d 1578 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 1579 kvfree(sbi->write_io[i]);
5aba5430 1580#ifdef CONFIG_UNICODE
eca4873e 1581 utf8_unload(sb->s_encoding);
5aba5430 1582#endif
742532d1 1583 kfree(sbi);
aff063e2
JK		 1584}
1585
1586int f2fs_sync_fs(struct super_block *sb, int sync)
1587{
1588 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c34f42e2 1589 int err = 0;
aff063e2 1590
1f227a3e
JK		 1591 if (unlikely(f2fs_cp_error(sbi)))
1592 return 0;
4354994f
DR		 1593 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1594 return 0;
1f227a3e 1595
a2a4a7e4
NJ		 1596 trace_f2fs_sync_fs(sb, sync);
1597
4b2414d0
CY		 1598 if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
1599 return -EAGAIN;
1600
261eeb9c
DJ		 1601 if (sync)
1602 err = f2fs_issue_checkpoint(sbi);
119ee914 1603
c34f42e2 1604 return err;
aff063e2
JK		 1605}
1606
d6212a5f
CL		 1607static int f2fs_freeze(struct super_block *sb)
1608{
77888c1e 1609 if (f2fs_readonly(sb))
d6212a5f
CL		 1610 return 0;
1611
b4b9d34c
JK		 1612 /* IO error happened before */
1613 if (unlikely(f2fs_cp_error(F2FS_SB(sb))))
1614 return -EIO;
1615
1616 /* must be clean, since sync_filesystem() was already called */
1617 if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
1618 return -EINVAL;
d50dfc0c
JK		 1619
1620 /* ensure no checkpoint required */
1621 if (!llist_empty(&F2FS_SB(sb)->cprc_info.issue_list))
1622 return -EINVAL;
b4b9d34c 1623 return 0;
d6212a5f
CL		 1624}
1625
1626static int f2fs_unfreeze(struct super_block *sb)
1627{
1628 return 0;
1629}
1630
ddc34e32
CY		 1631#ifdef CONFIG_QUOTA
1632static int f2fs_statfs_project(struct super_block *sb,
1633 kprojid_t projid, struct kstatfs *buf)
1634{
1635 struct kqid qid;
1636 struct dquot *dquot;
1637 u64 limit;
1638 u64 curblock;
1639
1640 qid = make_kqid_projid(projid);
1641 dquot = dqget(sb, qid);
1642 if (IS_ERR(dquot))
1643 return PTR_ERR(dquot);
955ac6e5 1644 spin_lock(&dquot->dq_dqb_lock);
ddc34e32 1645
bf2cbd3c
CX		 1646 limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit,
1647 dquot->dq_dqb.dqb_bhardlimit);
acdf2172
CX		 1648 if (limit)
1649 limit >>= sb->s_blocksize_bits;
909110c0 1650
ddc34e32 1651 if (limit && buf->f_blocks > limit) {
baaa7ebf
KK		 1652 curblock = (dquot->dq_dqb.dqb_curspace +
1653 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
ddc34e32
CY		 1654 buf->f_blocks = limit;
1655 buf->f_bfree = buf->f_bavail =
1656 (buf->f_blocks > curblock) ?
1657 (buf->f_blocks - curblock) : 0;
1658 }
1659
bf2cbd3c
CX		 1660 limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit,
1661 dquot->dq_dqb.dqb_ihardlimit);
909110c0 1662
ddc34e32
CY		 1663 if (limit && buf->f_files > limit) {
1664 buf->f_files = limit;
1665 buf->f_ffree =
1666 (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
1667 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
1668 }
1669
955ac6e5 1670 spin_unlock(&dquot->dq_dqb_lock);
ddc34e32
CY		 1671 dqput(dquot);
1672 return 0;
1673}
1674#endif
1675
aff063e2
JK		 1676static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
1677{
1678 struct super_block *sb = dentry->d_sb;
1679 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1680 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
f66c027e 1681 block_t total_count, user_block_count, start_count;
0cc091d0 1682 u64 avail_node_count;
aff063e2
JK		 1683
1684 total_count = le64_to_cpu(sbi->raw_super->block_count);
1685 user_block_count = sbi->user_block_count;
1686 start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
aff063e2
JK		 1687 buf->f_type = F2FS_SUPER_MAGIC;
1688 buf->f_bsize = sbi->blocksize;
1689
1690 buf->f_blocks = total_count - start_count;
f66c027e 1691 buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
80d42145 1692 sbi->current_reserved_blocks;
c9c8ed50
CY		 1693
1694 spin_lock(&sbi->stat_lock);
4354994f
DR		 1695 if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
1696 buf->f_bfree = 0;
1697 else
1698 buf->f_bfree -= sbi->unusable_block_count;
c9c8ed50 1699 spin_unlock(&sbi->stat_lock);
4354994f 1700
63189b78
CY		 1701 if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
1702 buf->f_bavail = buf->f_bfree -
1703 F2FS_OPTION(sbi).root_reserved_blocks;
7e65be49
JK		 1704 else
1705 buf->f_bavail = 0;
aff063e2 1706
27cae0bc 1707 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
0cc091d0
JK		 1708
1709 if (avail_node_count > user_block_count) {
1710 buf->f_files = user_block_count;
1711 buf->f_ffree = buf->f_bavail;
1712 } else {
1713 buf->f_files = avail_node_count;
1714 buf->f_ffree = min(avail_node_count - valid_node_count(sbi),
1715 buf->f_bavail);
1716 }
aff063e2 1717
5a20d339 1718 buf->f_namelen = F2FS_NAME_LEN;
6d1349c7 1719 buf->f_fsid = u64_to_fsid(id);
aff063e2 1720
ddc34e32
CY		 1721#ifdef CONFIG_QUOTA
1722 if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) &&
1723 sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
1724 f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf);
1725 }
1726#endif
aff063e2
JK		 1727 return 0;
1728}
1729
4b2414d0
CY		 1730static inline void f2fs_show_quota_options(struct seq_file *seq,
1731 struct super_block *sb)
1732{
1733#ifdef CONFIG_QUOTA
1734 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1735
63189b78 1736 if (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1737 char *fmtname = "";
1738
63189b78 1739 switch (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1740 case QFMT_VFS_OLD:
1741 fmtname = "vfsold";
1742 break;
1743 case QFMT_VFS_V0:
1744 fmtname = "vfsv0";
1745 break;
1746 case QFMT_VFS_V1:
1747 fmtname = "vfsv1";
1748 break;
1749 }
1750 seq_printf(seq, ",jqfmt=%s", fmtname);
1751 }
1752
63189b78
CY		 1753 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
1754 seq_show_option(seq, "usrjquota",
1755 F2FS_OPTION(sbi).s_qf_names[USRQUOTA]);
4b2414d0 1756
63189b78
CY		 1757 if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
1758 seq_show_option(seq, "grpjquota",
1759 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]);
4b2414d0 1760
63189b78
CY		 1761 if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
1762 seq_show_option(seq, "prjjquota",
1763 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]);
4b2414d0
CY		 1764#endif
1765}
1766
cd6ee739 1767#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1768static inline void f2fs_show_compress_options(struct seq_file *seq,
1769 struct super_block *sb)
1770{
1771 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1772 char *algtype = "";
1773 int i;
1774
1775 if (!f2fs_sb_has_compression(sbi))
1776 return;
1777
1778 switch (F2FS_OPTION(sbi).compress_algorithm) {
1779 case COMPRESS_LZO:
1780 algtype = "lzo";
1781 break;
1782 case COMPRESS_LZ4:
1783 algtype = "lz4";
1784 break;
50cfa66f
CY		 1785 case COMPRESS_ZSTD:
1786 algtype = "zstd";
1787 break;
6d92b201
CY		 1788 case COMPRESS_LZORLE:
1789 algtype = "lzo-rle";
1790 break;
4c8ff709
CY		 1791 }
1792 seq_printf(seq, ",compress_algorithm=%s", algtype);
1793
3fde13f8
CY		 1794 if (F2FS_OPTION(sbi).compress_level)
1795 seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level);
1796
4c8ff709
CY		 1797 seq_printf(seq, ",compress_log_size=%u",
1798 F2FS_OPTION(sbi).compress_log_size);
1799
1800 for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
1801 seq_printf(seq, ",compress_extension=%s",
1802 F2FS_OPTION(sbi).extensions[i]);
1803 }
b28f047b 1804
151b1982
FC		 1805 for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) {
1806 seq_printf(seq, ",nocompress_extension=%s",
1807 F2FS_OPTION(sbi).noextensions[i]);
1808 }
1809
b28f047b
CY		 1810 if (F2FS_OPTION(sbi).compress_chksum)
1811 seq_puts(seq, ",compress_chksum");
602a16d5
DJ		 1812
1813 if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS)
1814 seq_printf(seq, ",compress_mode=%s", "fs");
1815 else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
1816 seq_printf(seq, ",compress_mode=%s", "user");
6ce19aff
CY		 1817
1818 if (test_opt(sbi, COMPRESS_CACHE))
1819 seq_puts(seq, ",compress_cache");
4c8ff709 1820}
cd6ee739 1821#endif
4c8ff709 1822
aff063e2
JK		 1823static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
1824{
1825 struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
1826
bbbc34fd
CY		 1827 if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
1828 seq_printf(seq, ",background_gc=%s", "sync");
1829 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
1830 seq_printf(seq, ",background_gc=%s", "on");
1831 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
696c018c 1832 seq_printf(seq, ",background_gc=%s", "off");
bbbc34fd 1833
5911d2d1
CY		 1834 if (test_opt(sbi, GC_MERGE))
1835 seq_puts(seq, ",gc_merge");
1836
aff063e2
JK		 1837 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
1838 seq_puts(seq, ",disable_roll_forward");
a9117eca
CY		 1839 if (test_opt(sbi, NORECOVERY))
1840 seq_puts(seq, ",norecovery");
aff063e2
JK		 1841 if (test_opt(sbi, DISCARD))
1842 seq_puts(seq, ",discard");
81621f97
ST		 1843 else
1844 seq_puts(seq, ",nodiscard");
aff063e2 1845 if (test_opt(sbi, NOHEAP))
7a20b8a6
JK		 1846 seq_puts(seq, ",no_heap");
1847 else
1848 seq_puts(seq, ",heap");
aff063e2
JK		 1849#ifdef CONFIG_F2FS_FS_XATTR
1850 if (test_opt(sbi, XATTR_USER))
1851 seq_puts(seq, ",user_xattr");
1852 else
1853 seq_puts(seq, ",nouser_xattr");
444c580f
JK		 1854 if (test_opt(sbi, INLINE_XATTR))
1855 seq_puts(seq, ",inline_xattr");
23cf7212
CY		 1856 else
1857 seq_puts(seq, ",noinline_xattr");
6afc662e
CY		 1858 if (test_opt(sbi, INLINE_XATTR_SIZE))
1859 seq_printf(seq, ",inline_xattr_size=%u",
63189b78 1860 F2FS_OPTION(sbi).inline_xattr_size);
aff063e2
JK		 1861#endif
1862#ifdef CONFIG_F2FS_FS_POSIX_ACL
1863 if (test_opt(sbi, POSIX_ACL))
1864 seq_puts(seq, ",acl");
1865 else
1866 seq_puts(seq, ",noacl");
1867#endif
1868 if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
aa43507f 1869 seq_puts(seq, ",disable_ext_identify");
8274de77
HL		 1870 if (test_opt(sbi, INLINE_DATA))
1871 seq_puts(seq, ",inline_data");
75342797
WL		 1872 else
1873 seq_puts(seq, ",noinline_data");
5efd3c6f
CY		 1874 if (test_opt(sbi, INLINE_DENTRY))
1875 seq_puts(seq, ",inline_dentry");
97c1794a
CY		 1876 else
1877 seq_puts(seq, ",noinline_dentry");
b270ad6f 1878 if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE))
6b4afdd7 1879 seq_puts(seq, ",flush_merge");
0f7b2abd
JK		 1880 if (test_opt(sbi, NOBARRIER))
1881 seq_puts(seq, ",nobarrier");
d5053a34
JK		 1882 if (test_opt(sbi, FASTBOOT))
1883 seq_puts(seq, ",fastboot");
89672159
CY		 1884 if (test_opt(sbi, EXTENT_CACHE))
1885 seq_puts(seq, ",extent_cache");
7daaea25
JK		 1886 else
1887 seq_puts(seq, ",noextent_cache");
343f40f0
CY		 1888 if (test_opt(sbi, DATA_FLUSH))
1889 seq_puts(seq, ",data_flush");
36abef4e
JK		 1890
1891 seq_puts(seq, ",mode=");
b0332a0f 1892 if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
36abef4e 1893 seq_puts(seq, "adaptive");
b0332a0f 1894 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
36abef4e 1895 seq_puts(seq, "lfs");
63189b78 1896 seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
7e65be49 1897 if (test_opt(sbi, RESERVE_ROOT))
7c2e5963 1898 seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
63189b78
CY		 1899 F2FS_OPTION(sbi).root_reserved_blocks,
1900 from_kuid_munged(&init_user_ns,
1901 F2FS_OPTION(sbi).s_resuid),
1902 from_kgid_munged(&init_user_ns,
1903 F2FS_OPTION(sbi).s_resgid));
ec91538d 1904 if (F2FS_IO_SIZE_BITS(sbi))
c6b1867b
CX		 1905 seq_printf(seq, ",io_bits=%u",
1906 F2FS_OPTION(sbi).write_io_size_bits);
0cc0dec2 1907#ifdef CONFIG_F2FS_FAULT_INJECTION
d494500a 1908 if (test_opt(sbi, FAULT_INJECTION)) {
44529f89 1909 seq_printf(seq, ",fault_injection=%u",
63189b78 1910 F2FS_OPTION(sbi).fault_info.inject_rate);
d494500a
CY		 1911 seq_printf(seq, ",fault_type=%u",
1912 F2FS_OPTION(sbi).fault_info.inject_type);
1913 }
0cc0dec2 1914#endif
0abd675e 1915#ifdef CONFIG_QUOTA
4b2414d0
CY		 1916 if (test_opt(sbi, QUOTA))
1917 seq_puts(seq, ",quota");
0abd675e
CY		 1918 if (test_opt(sbi, USRQUOTA))
1919 seq_puts(seq, ",usrquota");
1920 if (test_opt(sbi, GRPQUOTA))
1921 seq_puts(seq, ",grpquota");
5c57132e
CY		 1922 if (test_opt(sbi, PRJQUOTA))
1923 seq_puts(seq, ",prjquota");
0cc0dec2 1924#endif
4b2414d0 1925 f2fs_show_quota_options(seq, sbi->sb);
63189b78 1926 if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER)
0cdd3195 1927 seq_printf(seq, ",whint_mode=%s", "user-based");
63189b78 1928 else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS)
f2e703f9 1929 seq_printf(seq, ",whint_mode=%s", "fs-based");
ed318a6c
EB		 1930
1931 fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb);
aff063e2 1932
27aacd28
ST		 1933 if (sbi->sb->s_flags & SB_INLINECRYPT)
1934 seq_puts(seq, ",inlinecrypt");
1935
63189b78 1936 if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
07939627 1937 seq_printf(seq, ",alloc_mode=%s", "default");
63189b78 1938 else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
07939627 1939 seq_printf(seq, ",alloc_mode=%s", "reuse");
93cf93f1 1940
4354994f 1941 if (test_opt(sbi, DISABLE_CHECKPOINT))
4d3aed70
DR		 1942 seq_printf(seq, ",checkpoint=disable:%u",
1943 F2FS_OPTION(sbi).unusable_cap);
261eeb9c
DJ		 1944 if (test_opt(sbi, MERGE_CHECKPOINT))
1945 seq_puts(seq, ",checkpoint_merge");
1946 else
1947 seq_puts(seq, ",nocheckpoint_merge");
63189b78 1948 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
93cf93f1 1949 seq_printf(seq, ",fsync_mode=%s", "posix");
63189b78 1950 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
93cf93f1 1951 seq_printf(seq, ",fsync_mode=%s", "strict");
dc132802
ST		 1952 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
1953 seq_printf(seq, ",fsync_mode=%s", "nobarrier");
4c8ff709 1954
1f0b067b 1955#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 1956 f2fs_show_compress_options(seq, sbi->sb);
1f0b067b 1957#endif
093749e2
CY		 1958
1959 if (test_opt(sbi, ATGC))
1960 seq_puts(seq, ",atgc");
4f993264
CY		 1961
1962 if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK)
1963 seq_printf(seq, ",discard_unit=%s", "block");
1964 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
1965 seq_printf(seq, ",discard_unit=%s", "segment");
1966 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
1967 seq_printf(seq, ",discard_unit=%s", "section");
1968
aff063e2
JK		 1969 return 0;
1970}
1971
498c5e9f
YH		 1972static void default_options(struct f2fs_sb_info *sbi)
1973{
1974 /* init some FS parameters */
a7d9fe3c
JK		 1975 if (f2fs_sb_has_readonly(sbi))
1976 F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE;
1977 else
1978 F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;
1979
63189b78
CY		 1980 F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
1981 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
1982 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
1983 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
0aa7e0f8
CY		 1984 F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
1985 F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
91faa534 1986 F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
4c8ff709
CY		 1987 F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
1988 F2FS_OPTION(sbi).compress_ext_cnt = 0;
602a16d5 1989 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
bbbc34fd 1990 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
498c5e9f 1991
27aacd28
ST		 1992 sbi->sb->s_flags &= ~SB_INLINECRYPT;
1993
39133a50 1994 set_opt(sbi, INLINE_XATTR);
498c5e9f 1995 set_opt(sbi, INLINE_DATA);
97c1794a 1996 set_opt(sbi, INLINE_DENTRY);
3e72f721 1997 set_opt(sbi, EXTENT_CACHE);
7a20b8a6 1998 set_opt(sbi, NOHEAP);
4354994f 1999 clear_opt(sbi, DISABLE_CHECKPOINT);
b5d15199 2000 set_opt(sbi, MERGE_CHECKPOINT);
4d3aed70 2001 F2FS_OPTION(sbi).unusable_cap = 0;
1751e8a6 2002 sbi->sb->s_flags |= SB_LAZYTIME;
69e9e427 2003 set_opt(sbi, FLUSH_MERGE);
7d20c8ab 2004 set_opt(sbi, DISCARD);
4f993264 2005 if (f2fs_sb_has_blkzoned(sbi)) {
b0332a0f 2006 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
4f993264
CY		 2007 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
2008 } else {
b0332a0f 2009 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
4f993264
CY		 2010 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
2011 }
498c5e9f
YH		 2012
2013#ifdef CONFIG_F2FS_FS_XATTR
2014 set_opt(sbi, XATTR_USER);
2015#endif
2016#ifdef CONFIG_F2FS_FS_POSIX_ACL
2017 set_opt(sbi, POSIX_ACL);
2018#endif
36dbd328 2019
d494500a 2020 f2fs_build_fault_attr(sbi, 0, 0);
498c5e9f
YH		 2021}
2022
ea676733
JK		 2023#ifdef CONFIG_QUOTA
2024static int f2fs_enable_quotas(struct super_block *sb);
2025#endif
4354994f
DR		 2026
2027static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
2028{
812a9597 2029 unsigned int s_flags = sbi->sb->s_flags;
4354994f 2030 struct cp_control cpc;
812a9597
JK		 2031 int err = 0;
2032 int ret;
4d3aed70 2033 block_t unusable;
4354994f 2034
812a9597 2035 if (s_flags & SB_RDONLY) {
dcbb4c10 2036 f2fs_err(sbi, "checkpoint=disable on readonly fs");
812a9597
JK		 2037 return -EINVAL;
2038 }
4354994f
DR		 2039 sbi->sb->s_flags |= SB_ACTIVE;
2040
4354994f
DR		 2041 f2fs_update_time(sbi, DISABLE_TIME);
2042
2043 while (!f2fs_time_over(sbi, DISABLE_TIME)) {
fb24fea7 2044 down_write(&sbi->gc_lock);
7dede886 2045 err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
812a9597
JK		 2046 if (err == -ENODATA) {
2047 err = 0;
4354994f 2048 break;
812a9597 2049 }
8f31b466 2050 if (err && err != -EAGAIN)
812a9597 2051 break;
4354994f 2052 }
4354994f 2053
812a9597
JK		 2054 ret = sync_filesystem(sbi->sb);
2055 if (ret || err) {
5f029c04 2056 err = ret ? ret : err;
812a9597
JK		 2057 goto restore_flag;
2058 }
4354994f 2059
4d3aed70
DR		 2060 unusable = f2fs_get_unusable_blocks(sbi);
2061 if (f2fs_disable_cp_again(sbi, unusable)) {
812a9597
JK		 2062 err = -EAGAIN;
2063 goto restore_flag;
2064 }
4354994f 2065
fb24fea7 2066 down_write(&sbi->gc_lock);
4354994f
DR		 2067 cpc.reason = CP_PAUSE;
2068 set_sbi_flag(sbi, SBI_CP_DISABLED);
896285ad
CY		 2069 err = f2fs_write_checkpoint(sbi, &cpc);
2070 if (err)
2071 goto out_unlock;
4354994f 2072
c9c8ed50 2073 spin_lock(&sbi->stat_lock);
4d3aed70 2074 sbi->unusable_block_count = unusable;
c9c8ed50
CY		 2075 spin_unlock(&sbi->stat_lock);
2076
896285ad 2077out_unlock:
fb24fea7 2078 up_write(&sbi->gc_lock);
812a9597 2079restore_flag:
7a88ddb5 2080 sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
812a9597 2081 return err;
4354994f
DR		 2082}
2083
2084static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
2085{
b0ff4fe7
JK		 2086 /* we should flush all the data to keep data consistency */
2087 sync_inodes_sb(sbi->sb);
2088
fb24fea7 2089 down_write(&sbi->gc_lock);
4354994f
DR		 2090 f2fs_dirty_to_prefree(sbi);
2091
2092 clear_sbi_flag(sbi, SBI_CP_DISABLED);
2093 set_sbi_flag(sbi, SBI_IS_DIRTY);
fb24fea7 2094 up_write(&sbi->gc_lock);
4354994f
DR		 2095
2096 f2fs_sync_fs(sbi->sb, 1);
2097}
2098
696c018c
NJ		 2099static int f2fs_remount(struct super_block *sb, int *flags, char *data)
2100{
2101 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2102 struct f2fs_mount_info org_mount_opt;
0abd675e 2103 unsigned long old_sb_flags;
63189b78 2104 int err;
3fd97359
CY		 2105 bool need_restart_gc = false, need_stop_gc = false;
2106 bool need_restart_ckpt = false, need_stop_ckpt = false;
2107 bool need_restart_flush = false, need_stop_flush = false;
9cd81ce3 2108 bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
277afbde 2109 bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
1f78adfa 2110 bool no_io_align = !F2FS_IO_ALIGNED(sbi);
093749e2 2111 bool no_atgc = !test_opt(sbi, ATGC);
6ce19aff 2112 bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
4f993264 2113 bool block_unit_discard = f2fs_block_unit_discard(sbi);
4b2414d0 2114#ifdef CONFIG_QUOTA
4b2414d0
CY		 2115 int i, j;
2116#endif
696c018c
NJ		 2117
2118 /*
2119 * Save the old mount options in case we
2120 * need to restore them.
2121 */
2122 org_mount_opt = sbi->mount_opt;
0abd675e 2123 old_sb_flags = sb->s_flags;
696c018c 2124
4b2414d0 2125#ifdef CONFIG_QUOTA
63189b78 2126 org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt;
4b2414d0 2127 for (i = 0; i < MAXQUOTAS; i++) {
63189b78
CY		 2128 if (F2FS_OPTION(sbi).s_qf_names[i]) {
2129 org_mount_opt.s_qf_names[i] =
2130 kstrdup(F2FS_OPTION(sbi).s_qf_names[i],
2131 GFP_KERNEL);
2132 if (!org_mount_opt.s_qf_names[i]) {
4b2414d0 2133 for (j = 0; j < i; j++)
ba87a45c 2134 kfree(org_mount_opt.s_qf_names[j]);
4b2414d0
CY		 2135 return -ENOMEM;
2136 }
2137 } else {
63189b78 2138 org_mount_opt.s_qf_names[i] = NULL;
4b2414d0
CY		 2139 }
2140 }
2141#endif
2142
df728b0f 2143 /* recover superblocks we couldn't write due to previous RO mount */
1751e8a6 2144 if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
df728b0f 2145 err = f2fs_commit_super(sbi, false);
dcbb4c10
JP		 2146 f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
2147 err);
df728b0f
JK		 2148 if (!err)
2149 clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
2150 }
2151
498c5e9f 2152 default_options(sbi);
26666c8a 2153
696c018c 2154 /* parse mount options */
ed318a6c 2155 err = parse_options(sb, data, true);
696c018c
NJ		 2156 if (err)
2157 goto restore_opts;
2158
2159 /*
2160 * Previous and new state of filesystem is RO,
876dc59e 2161 * so skip checking GC and FLUSH_MERGE conditions.
696c018c 2162 */
1751e8a6 2163 if (f2fs_readonly(sb) && (*flags & SB_RDONLY))
696c018c
NJ		 2164 goto skip;
2165
a7d9fe3c
JK		 2166 if (f2fs_sb_has_readonly(sbi) && !(*flags & SB_RDONLY)) {
2167 err = -EROFS;
2168 goto restore_opts;
2169 }
2170
ea676733 2171#ifdef CONFIG_QUOTA
1751e8a6 2172 if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) {
0abd675e
CY		 2173 err = dquot_suspend(sb, -1);
2174 if (err < 0)
2175 goto restore_opts;
4354994f 2176 } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
0abd675e 2177 /* dquot_resume needs RW */
1751e8a6 2178 sb->s_flags &= ~SB_RDONLY;
ea676733
JK		 2179 if (sb_any_quota_suspended(sb)) {
2180 dquot_resume(sb, -1);
7beb01f7 2181 } else if (f2fs_sb_has_quota_ino(sbi)) {
ea676733
JK		 2182 err = f2fs_enable_quotas(sb);
2183 if (err)
2184 goto restore_opts;
2185 }
0abd675e 2186 }
ea676733 2187#endif
093749e2
CY		 2188 /* disallow enable atgc dynamically */
2189 if (no_atgc == !!test_opt(sbi, ATGC)) {
2190 err = -EINVAL;
2191 f2fs_warn(sbi, "switch atgc option is not allowed");
2192 goto restore_opts;
2193 }
2194
9cd81ce3
CY		 2195 /* disallow enable/disable extent_cache dynamically */
2196 if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) {
2197 err = -EINVAL;
dcbb4c10 2198 f2fs_warn(sbi, "switch extent_cache option is not allowed");
9cd81ce3
CY		 2199 goto restore_opts;
2200 }
2201
1f78adfa
CY		 2202 if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
2203 err = -EINVAL;
2204 f2fs_warn(sbi, "switch io_bits option is not allowed");
2205 goto restore_opts;
2206 }
2207
6ce19aff
CY		 2208 if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) {
2209 err = -EINVAL;
2210 f2fs_warn(sbi, "switch compress_cache option is not allowed");
2211 goto restore_opts;
2212 }
2213
4f993264
CY		 2214 if (block_unit_discard != f2fs_block_unit_discard(sbi)) {
2215 err = -EINVAL;
2216 f2fs_warn(sbi, "switch discard_unit option is not allowed");
2217 goto restore_opts;
2218 }
2219
4354994f
DR		 2220 if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
2221 err = -EINVAL;
dcbb4c10 2222 f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
4354994f
DR		 2223 goto restore_opts;
2224 }
2225
696c018c
NJ		 2226 /*
2227 * We stop the GC thread if FS is mounted as RO
2228 * or if background_gc = off is passed in mount
2229 * option. Also sync the filesystem.
2230 */
bbbc34fd 2231 if ((*flags & SB_RDONLY) ||
5911d2d1
CY		 2232 (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF &&
2233 !test_opt(sbi, GC_MERGE))) {
696c018c 2234 if (sbi->gc_thread) {
4d57b86d 2235 f2fs_stop_gc_thread(sbi);
876dc59e 2236 need_restart_gc = true;
696c018c 2237 }
aba291b3 2238 } else if (!sbi->gc_thread) {
4d57b86d 2239 err = f2fs_start_gc_thread(sbi);
696c018c
NJ		 2240 if (err)
2241 goto restore_opts;
876dc59e
GZ		 2242 need_stop_gc = true;
2243 }
2244
63189b78
CY		 2245 if (*flags & SB_RDONLY ||
2246 F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) {
faa0e55b
JK		 2247 sync_inodes_sb(sb);
2248
2249 set_sbi_flag(sbi, SBI_IS_DIRTY);
2250 set_sbi_flag(sbi, SBI_IS_CLOSE);
2251 f2fs_sync_fs(sb, 1);
2252 clear_sbi_flag(sbi, SBI_IS_CLOSE);
2253 }
2254
3f7070b0
CY		 2255 if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) ||
2256 !test_opt(sbi, MERGE_CHECKPOINT)) {
2257 f2fs_stop_ckpt_thread(sbi);
3fd97359 2258 need_restart_ckpt = true;
3f7070b0 2259 } else {
261eeb9c
DJ		 2260 err = f2fs_start_ckpt_thread(sbi);
2261 if (err) {
2262 f2fs_err(sbi,
2263 "Failed to start F2FS issue_checkpoint_thread (%d)",
2264 err);
2265 goto restore_gc;
2266 }
3fd97359 2267 need_stop_ckpt = true;
261eeb9c
DJ		 2268 }
2269
876dc59e
GZ		 2270 /*
2271 * We stop issue flush thread if FS is mounted as RO
2272 * or if flush_merge is not passed in mount option.
2273 */
1751e8a6 2274 if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) {
5eba8c5d 2275 clear_opt(sbi, FLUSH_MERGE);
4d57b86d 2276 f2fs_destroy_flush_cmd_control(sbi, false);
3fd97359 2277 need_restart_flush = true;
5eba8c5d 2278 } else {
4d57b86d 2279 err = f2fs_create_flush_cmd_control(sbi);
2163d198 2280 if (err)
3fd97359
CY		 2281 goto restore_ckpt;
2282 need_stop_flush = true;
696c018c 2283 }
3fd97359 2284
277afbde 2285 if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
3fd97359
CY		 2286 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
2287 err = f2fs_disable_checkpoint(sbi);
2288 if (err)
2289 goto restore_flush;
2290 } else {
2291 f2fs_enable_checkpoint(sbi);
2292 }
2293 }
2294
696c018c 2295skip:
4b2414d0
CY		 2296#ifdef CONFIG_QUOTA
2297 /* Release old quota file names */
2298 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 2299 kfree(org_mount_opt.s_qf_names[i]);
4b2414d0 2300#endif
696c018c 2301 /* Update the POSIXACL Flag */
1751e8a6
LT		 2302 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
2303 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
df728b0f 2304
7e65be49 2305 limit_reserve_root(sbi);
1ae18f71 2306 adjust_unusable_cap_perc(sbi);
095680f2 2307 *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
696c018c 2308 return 0;
3fd97359
CY		 2309restore_flush:
2310 if (need_restart_flush) {
2311 if (f2fs_create_flush_cmd_control(sbi))
2312 f2fs_warn(sbi, "background flush thread has stopped");
2313 } else if (need_stop_flush) {
2314 clear_opt(sbi, FLUSH_MERGE);
2315 f2fs_destroy_flush_cmd_control(sbi, false);
2316 }
2317restore_ckpt:
2318 if (need_restart_ckpt) {
2319 if (f2fs_start_ckpt_thread(sbi))
2320 f2fs_warn(sbi, "background ckpt thread has stopped");
2321 } else if (need_stop_ckpt) {
2322 f2fs_stop_ckpt_thread(sbi);
2323 }
876dc59e
GZ		 2324restore_gc:
2325 if (need_restart_gc) {
4d57b86d 2326 if (f2fs_start_gc_thread(sbi))
dcbb4c10 2327 f2fs_warn(sbi, "background gc thread has stopped");
876dc59e 2328 } else if (need_stop_gc) {
4d57b86d 2329 f2fs_stop_gc_thread(sbi);
876dc59e 2330 }
696c018c 2331restore_opts:
4b2414d0 2332#ifdef CONFIG_QUOTA
63189b78 2333 F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
4b2414d0 2334 for (i = 0; i < MAXQUOTAS; i++) {
ba87a45c 2335 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
63189b78 2336 F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
4b2414d0
CY		 2337 }
2338#endif
696c018c 2339 sbi->mount_opt = org_mount_opt;
0abd675e 2340 sb->s_flags = old_sb_flags;
696c018c
NJ		 2341 return err;
2342}
2343
0abd675e
CY		 2344#ifdef CONFIG_QUOTA
2345/* Read data from quotafile */
2346static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
2347 size_t len, loff_t off)
2348{
2349 struct inode *inode = sb_dqopt(sb)->files[type];
2350 struct address_space *mapping = inode->i_mapping;
2351 block_t blkidx = F2FS_BYTES_TO_BLK(off);
2352 int offset = off & (sb->s_blocksize - 1);
2353 int tocopy;
2354 size_t toread;
2355 loff_t i_size = i_size_read(inode);
2356 struct page *page;
2357 char *kaddr;
2358
2359 if (off > i_size)
2360 return 0;
2361
2362 if (off + len > i_size)
2363 len = i_size - off;
2364 toread = len;
2365 while (toread > 0) {
2366 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
2367repeat:
02117b8a 2368 page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
4e46a023
JK		 2369 if (IS_ERR(page)) {
2370 if (PTR_ERR(page) == -ENOMEM) {
5df7731f
CY		 2371 congestion_wait(BLK_RW_ASYNC,
2372 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2373 goto repeat;
2374 }
af033b2a 2375 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2376 return PTR_ERR(page);
4e46a023 2377 }
0abd675e
CY		 2378
2379 lock_page(page);
2380
2381 if (unlikely(page->mapping != mapping)) {
2382 f2fs_put_page(page, 1);
2383 goto repeat;
2384 }
2385 if (unlikely(!PageUptodate(page))) {
2386 f2fs_put_page(page, 1);
af033b2a 2387 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e
CY		 2388 return -EIO;
2389 }
2390
2391 kaddr = kmap_atomic(page);
2392 memcpy(data, kaddr + offset, tocopy);
2393 kunmap_atomic(kaddr);
2394 f2fs_put_page(page, 1);
2395
2396 offset = 0;
2397 toread -= tocopy;
2398 data += tocopy;
2399 blkidx++;
2400 }
2401 return len;
2402}
2403
2404/* Write to quotafile */
2405static ssize_t f2fs_quota_write(struct super_block *sb, int type,
2406 const char *data, size_t len, loff_t off)
2407{
2408 struct inode *inode = sb_dqopt(sb)->files[type];
2409 struct address_space *mapping = inode->i_mapping;
2410 const struct address_space_operations *a_ops = mapping->a_ops;
2411 int offset = off & (sb->s_blocksize - 1);
2412 size_t towrite = len;
2413 struct page *page;
62f63eea 2414 void *fsdata = NULL;
0abd675e
CY		 2415 char *kaddr;
2416 int err = 0;
2417 int tocopy;
2418
2419 while (towrite > 0) {
2420 tocopy = min_t(unsigned long, sb->s_blocksize - offset,
2421 towrite);
4e46a023 2422retry:
0abd675e 2423 err = a_ops->write_begin(NULL, mapping, off, tocopy, 0,
62f63eea 2424 &page, &fsdata);
4e46a023
JK		 2425 if (unlikely(err)) {
2426 if (err == -ENOMEM) {
5df7731f
CY		 2427 congestion_wait(BLK_RW_ASYNC,
2428 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2429 goto retry;
2430 }
af033b2a 2431 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2432 break;
4e46a023 2433 }
0abd675e
CY		 2434
2435 kaddr = kmap_atomic(page);
2436 memcpy(kaddr + offset, data, tocopy);
2437 kunmap_atomic(kaddr);
2438 flush_dcache_page(page);
2439
2440 a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
62f63eea 2441 page, fsdata);
0abd675e
CY		 2442 offset = 0;
2443 towrite -= tocopy;
2444 off += tocopy;
2445 data += tocopy;
2446 cond_resched();
2447 }
2448
2449 if (len == towrite)
6e5b5d41 2450 return err;
0abd675e
CY		 2451 inode->i_mtime = inode->i_ctime = current_time(inode);
2452 f2fs_mark_inode_dirty_sync(inode, false);
2453 return len - towrite;
2454}
2455
2456static struct dquot **f2fs_get_dquots(struct inode *inode)
2457{
2458 return F2FS_I(inode)->i_dquot;
2459}
2460
2461static qsize_t *f2fs_get_reserved_space(struct inode *inode)
2462{
2463 return &F2FS_I(inode)->i_reserved_quota;
2464}
2465
4b2414d0
CY		 2466static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
2467{
af033b2a 2468 if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2469 f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
af033b2a
CY		 2470 return 0;
2471 }
2472
63189b78
CY		 2473 return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
2474 F2FS_OPTION(sbi).s_jquota_fmt, type);
4b2414d0
CY		 2475}
2476
ea676733 2477int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
4b2414d0 2478{
ea676733
JK		 2479 int enabled = 0;
2480 int i, err;
2481
7beb01f7 2482 if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
ea676733
JK		 2483 err = f2fs_enable_quotas(sbi->sb);
2484 if (err) {
dcbb4c10 2485 f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
ea676733
JK		 2486 return 0;
2487 }
2488 return 1;
2489 }
4b2414d0
CY		 2490
2491 for (i = 0; i < MAXQUOTAS; i++) {
63189b78 2492 if (F2FS_OPTION(sbi).s_qf_names[i]) {
ea676733
JK		 2493 err = f2fs_quota_on_mount(sbi, i);
2494 if (!err) {
2495 enabled = 1;
2496 continue;
2497 }
dcbb4c10
JP		 2498 f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
2499 err, i);
4b2414d0
CY		 2500 }
2501 }
ea676733
JK		 2502 return enabled;
2503}
2504
2505static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
2506 unsigned int flags)
2507{
2508 struct inode *qf_inode;
2509 unsigned long qf_inum;
2510 int err;
2511
7beb01f7 2512 BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
ea676733
JK		 2513
2514 qf_inum = f2fs_qf_ino(sb, type);
2515 if (!qf_inum)
2516 return -EPERM;
2517
2518 qf_inode = f2fs_iget(sb, qf_inum);
2519 if (IS_ERR(qf_inode)) {
dcbb4c10 2520 f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
ea676733
JK		 2521 return PTR_ERR(qf_inode);
2522 }
2523
2524 /* Don't account quota for quota files to avoid recursion */
2525 qf_inode->i_flags |= S_NOQUOTA;
7212b95e 2526 err = dquot_load_quota_inode(qf_inode, type, format_id, flags);
ea676733
JK		 2527 iput(qf_inode);
2528 return err;
2529}
2530
2531static int f2fs_enable_quotas(struct super_block *sb)
2532{
dcbb4c10 2533 struct f2fs_sb_info *sbi = F2FS_SB(sb);
ea676733
JK		 2534 int type, err = 0;
2535 unsigned long qf_inum;
2536 bool quota_mopt[MAXQUOTAS] = {
dcbb4c10
JP		 2537 test_opt(sbi, USRQUOTA),
2538 test_opt(sbi, GRPQUOTA),
2539 test_opt(sbi, PRJQUOTA),
ea676733
JK		 2540 };
2541
af033b2a 2542 if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2543 f2fs_err(sbi, "quota file may be corrupted, skip loading it");
af033b2a
CY		 2544 return 0;
2545 }
2546
2547 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
2548
ea676733
JK		 2549 for (type = 0; type < MAXQUOTAS; type++) {
2550 qf_inum = f2fs_qf_ino(sb, type);
2551 if (qf_inum) {
2552 err = f2fs_quota_enable(sb, type, QFMT_VFS_V1,
2553 DQUOT_USAGE_ENABLED |
2554 (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
2555 if (err) {
dcbb4c10
JP		 2556 f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
2557 type, err);
ea676733
JK		 2558 for (type--; type >= 0; type--)
2559 dquot_quota_off(sb, type);
af033b2a
CY		 2560 set_sbi_flag(F2FS_SB(sb),
2561 SBI_QUOTA_NEED_REPAIR);
ea676733
JK		 2562 return err;
2563 }
4b2414d0
CY		 2564 }
2565 }
ea676733 2566 return 0;
4b2414d0
CY		 2567}
2568
9de71ede
CY		 2569static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type)
2570{
2571 struct quota_info *dqopt = sb_dqopt(sbi->sb);
2572 struct address_space *mapping = dqopt->files[type]->i_mapping;
2573 int ret = 0;
2574
2575 ret = dquot_writeback_dquots(sbi->sb, type);
2576 if (ret)
2577 goto out;
2578
2579 ret = filemap_fdatawrite(mapping);
2580 if (ret)
2581 goto out;
2582
2583 /* if we are using journalled quota */
2584 if (is_journalled_quota(sbi))
2585 goto out;
2586
2587 ret = filemap_fdatawait(mapping);
2588
2589 truncate_inode_pages(&dqopt->files[type]->i_data, 0);
2590out:
2591 if (ret)
2592 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2593 return ret;
2594}
2595
af033b2a 2596int f2fs_quota_sync(struct super_block *sb, int type)
0abd675e 2597{
af033b2a 2598 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0abd675e
CY		 2599 struct quota_info *dqopt = sb_dqopt(sb);
2600 int cnt;
2601 int ret;
2602
0abd675e
CY		 2603 /*
2604 * Now when everything is written we can discard the pagecache so
2605 * that userspace sees the changes.
2606 */
2607 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
af033b2a 2608
0abd675e
CY		 2609 if (type != -1 && cnt != type)
2610 continue;
0abd675e 2611
9de71ede
CY		 2612 if (!sb_has_quota_active(sb, type))
2613 return 0;
af033b2a 2614
9de71ede 2615 inode_lock(dqopt->files[cnt]);
af033b2a 2616
9de71ede
CY		 2617 /*
2618 * do_quotactl
2619 * f2fs_quota_sync
2620 * down_read(quota_sem)
2621 * dquot_writeback_dquots()
2622 * f2fs_dquot_commit
2623 * block_operation
2624 * down_read(quota_sem)
2625 */
2626 f2fs_lock_op(sbi);
2627 down_read(&sbi->quota_sem);
af033b2a 2628
9de71ede
CY		 2629 ret = f2fs_quota_sync_file(sbi, cnt);
2630
2631 up_read(&sbi->quota_sem);
2632 f2fs_unlock_op(sbi);
0abd675e 2633
0abd675e 2634 inode_unlock(dqopt->files[cnt]);
9de71ede
CY		 2635
2636 if (ret)
2637 break;
0abd675e 2638 }
af033b2a 2639 return ret;
0abd675e
CY		 2640}
2641
2642static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
2643 const struct path *path)
2644{
2645 struct inode *inode;
2646 int err;
2647
fe973b06
CY		 2648 /* if quota sysfile exists, deny enabling quota with specific file */
2649 if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
2650 f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
2651 return -EBUSY;
2652 }
2653
9a20d391 2654 err = f2fs_quota_sync(sb, type);
0abd675e
CY		 2655 if (err)
2656 return err;
2657
2658 err = dquot_quota_on(sb, type, format_id, path);
2659 if (err)
2660 return err;
2661
2662 inode = d_inode(path->dentry);
2663
2664 inode_lock(inode);
59c84408 2665 F2FS_I(inode)->i_flags |= F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL;
9149a5eb 2666 f2fs_set_inode_flags(inode);
0abd675e
CY		 2667 inode_unlock(inode);
2668 f2fs_mark_inode_dirty_sync(inode, false);
2669
2670 return 0;
2671}
2672
fe973b06 2673static int __f2fs_quota_off(struct super_block *sb, int type)
0abd675e
CY		 2674{
2675 struct inode *inode = sb_dqopt(sb)->files[type];
2676 int err;
2677
2678 if (!inode || !igrab(inode))
2679 return dquot_quota_off(sb, type);
2680
cda9cc59
YH		 2681 err = f2fs_quota_sync(sb, type);
2682 if (err)
2683 goto out_put;
0abd675e
CY		 2684
2685 err = dquot_quota_off(sb, type);
7beb01f7 2686 if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
0abd675e
CY		 2687 goto out_put;
2688
2689 inode_lock(inode);
59c84408 2690 F2FS_I(inode)->i_flags &= ~(F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL);
9149a5eb 2691 f2fs_set_inode_flags(inode);
0abd675e
CY		 2692 inode_unlock(inode);
2693 f2fs_mark_inode_dirty_sync(inode, false);
2694out_put:
2695 iput(inode);
2696 return err;
2697}
2698
fe973b06
CY		 2699static int f2fs_quota_off(struct super_block *sb, int type)
2700{
2701 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2702 int err;
2703
2704 err = __f2fs_quota_off(sb, type);
2705
2706 /*
2707 * quotactl can shutdown journalled quota, result in inconsistence
2708 * between quota record and fs data by following updates, tag the
2709 * flag to let fsck be aware of it.
2710 */
2711 if (is_journalled_quota(sbi))
2712 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2713 return err;
2714}
2715
4b2414d0 2716void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2717{
2718 int type;
cda9cc59
YH		 2719 int err;
2720
2721 for (type = 0; type < MAXQUOTAS; type++) {
fe973b06 2722 err = __f2fs_quota_off(sb, type);
cda9cc59
YH		 2723 if (err) {
2724 int ret = dquot_quota_off(sb, type);
0abd675e 2725
dcbb4c10
JP		 2726 f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
2727 type, err, ret);
af033b2a 2728 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
cda9cc59
YH		 2729 }
2730 }
0e0667b6
JK		 2731 /*
2732 * In case of checkpoint=disable, we must flush quota blocks.
2733 * This can cause NULL exception for node_inode in end_io, since
2734 * put_super already dropped it.
2735 */
2736 sync_filesystem(sb);
0abd675e
CY		 2737}
2738
26b5a079
SY		 2739static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
2740{
2741 struct quota_info *dqopt = sb_dqopt(sb);
2742 int type;
2743
2744 for (type = 0; type < MAXQUOTAS; type++) {
2745 if (!dqopt->files[type])
2746 continue;
2747 f2fs_inode_synced(dqopt->files[type]);
2748 }
2749}
2750
af033b2a
CY		 2751static int f2fs_dquot_commit(struct dquot *dquot)
2752{
db6ec53b 2753 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2754 int ret;
2755
2c4e0c52 2756 down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
af033b2a
CY		 2757 ret = dquot_commit(dquot);
2758 if (ret < 0)
db6ec53b
JK		 2759 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2760 up_read(&sbi->quota_sem);
af033b2a
CY		 2761 return ret;
2762}
2763
2764static int f2fs_dquot_acquire(struct dquot *dquot)
2765{
db6ec53b 2766 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2767 int ret;
2768
db6ec53b 2769 down_read(&sbi->quota_sem);
af033b2a
CY		 2770 ret = dquot_acquire(dquot);
2771 if (ret < 0)
db6ec53b
JK		 2772 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2773 up_read(&sbi->quota_sem);
af033b2a
CY		 2774 return ret;
2775}
2776
2777static int f2fs_dquot_release(struct dquot *dquot)
2778{
db6ec53b 2779 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
2c4e0c52 2780 int ret = dquot_release(dquot);
af033b2a 2781
af033b2a 2782 if (ret < 0)
db6ec53b 2783 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2784 return ret;
2785}
2786
2787static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
2788{
2789 struct super_block *sb = dquot->dq_sb;
2790 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2791 int ret = dquot_mark_dquot_dirty(dquot);
af033b2a
CY		 2792
2793 /* if we are using journalled quota */
2794 if (is_journalled_quota(sbi))
2795 set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
2796
2797 return ret;
2798}
2799
2800static int f2fs_dquot_commit_info(struct super_block *sb, int type)
2801{
db6ec53b 2802 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2803 int ret = dquot_commit_info(sb, type);
af033b2a 2804
af033b2a 2805 if (ret < 0)
db6ec53b 2806 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2807 return ret;
2808}
26b5a079 2809
94b1e10e 2810static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
5c57132e
CY		 2811{
2812 *projid = F2FS_I(inode)->i_projid;
2813 return 0;
2814}
2815
0abd675e
CY		 2816static const struct dquot_operations f2fs_quota_operations = {
2817 .get_reserved_space = f2fs_get_reserved_space,
af033b2a
CY		 2818 .write_dquot = f2fs_dquot_commit,
2819 .acquire_dquot = f2fs_dquot_acquire,
2820 .release_dquot = f2fs_dquot_release,
2821 .mark_dirty = f2fs_dquot_mark_dquot_dirty,
2822 .write_info = f2fs_dquot_commit_info,
0abd675e
CY		 2823 .alloc_dquot = dquot_alloc,
2824 .destroy_dquot = dquot_destroy,
5c57132e 2825 .get_projid = f2fs_get_projid,
0abd675e
CY		 2826 .get_next_id = dquot_get_next_id,
2827};
2828
2829static const struct quotactl_ops f2fs_quotactl_ops = {
2830 .quota_on = f2fs_quota_on,
2831 .quota_off = f2fs_quota_off,
2832 .quota_sync = f2fs_quota_sync,
2833 .get_state = dquot_get_state,
2834 .set_info = dquot_set_dqinfo,
2835 .get_dqblk = dquot_get_dqblk,
2836 .set_dqblk = dquot_set_dqblk,
2837 .get_nextdqblk = dquot_get_next_dqblk,
2838};
2839#else
af033b2a
CY		 2840int f2fs_quota_sync(struct super_block *sb, int type)
2841{
2842 return 0;
2843}
2844
4b2414d0 2845void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2846{
2847}
2848#endif
2849
f62fc9f9 2850static const struct super_operations f2fs_sops = {
aff063e2 2851 .alloc_inode = f2fs_alloc_inode,
d01718a0 2852 .free_inode = f2fs_free_inode,
531ad7d5 2853 .drop_inode = f2fs_drop_inode,
aff063e2 2854 .write_inode = f2fs_write_inode,
b3783873 2855 .dirty_inode = f2fs_dirty_inode,
aff063e2 2856 .show_options = f2fs_show_options,
0abd675e
CY		 2857#ifdef CONFIG_QUOTA
2858 .quota_read = f2fs_quota_read,
2859 .quota_write = f2fs_quota_write,
2860 .get_dquots = f2fs_get_dquots,
2861#endif
aff063e2
JK		 2862 .evict_inode = f2fs_evict_inode,
2863 .put_super = f2fs_put_super,
2864 .sync_fs = f2fs_sync_fs,
d6212a5f
CL		 2865 .freeze_fs = f2fs_freeze,
2866 .unfreeze_fs = f2fs_unfreeze,
aff063e2 2867 .statfs = f2fs_statfs,
696c018c 2868 .remount_fs = f2fs_remount,
aff063e2
JK		 2869};
2870
643fa961 2871#ifdef CONFIG_FS_ENCRYPTION
0b81d077
JK		 2872static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
2873{
2874 return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2875 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2876 ctx, len, NULL);
2877}
2878
2879static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
2880 void *fs_data)
2881{
b7c409de
SY		 2882 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2883
2884 /*
2885 * Encrypting the root directory is not allowed because fsck
2886 * expects lost+found directory to exist and remain unencrypted
2887 * if LOST_FOUND feature is enabled.
2888 *
2889 */
7beb01f7 2890 if (f2fs_sb_has_lost_found(sbi) &&
b7c409de
SY		 2891 inode->i_ino == F2FS_ROOT_INO(sbi))
2892 return -EPERM;
2893
0b81d077
JK		 2894 return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2895 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2896 ctx, len, fs_data, XATTR_CREATE);
2897}
2898
ac4acb1f 2899static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb)
ff62af20 2900{
ac4acb1f 2901 return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy;
ff62af20
SY		 2902}
2903
0eee17e3
EB		 2904static bool f2fs_has_stable_inodes(struct super_block *sb)
2905{
2906 return true;
2907}
2908
2909static void f2fs_get_ino_and_lblk_bits(struct super_block *sb,
2910 int *ino_bits_ret, int *lblk_bits_ret)
2911{
2912 *ino_bits_ret = 8 * sizeof(nid_t);
2913 *lblk_bits_ret = 8 * sizeof(block_t);
2914}
2915
27aacd28
ST		 2916static int f2fs_get_num_devices(struct super_block *sb)
2917{
2918 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2919
2920 if (f2fs_is_multi_device(sbi))
2921 return sbi->s_ndevs;
2922 return 1;
2923}
2924
2925static void f2fs_get_devices(struct super_block *sb,
2926 struct request_queue **devs)
2927{
2928 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2929 int i;
2930
2931 for (i = 0; i < sbi->s_ndevs; i++)
2932 devs[i] = bdev_get_queue(FDEV(i).bdev);
2933}
2934
6f69f0ed 2935static const struct fscrypt_operations f2fs_cryptops = {
0eee17e3
EB		 2936 .key_prefix = "f2fs:",
2937 .get_context = f2fs_get_context,
2938 .set_context = f2fs_set_context,
ac4acb1f 2939 .get_dummy_policy = f2fs_get_dummy_policy,
0eee17e3
EB		 2940 .empty_dir = f2fs_empty_dir,
2941 .max_namelen = F2FS_NAME_LEN,
2942 .has_stable_inodes = f2fs_has_stable_inodes,
2943 .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
27aacd28
ST		 2944 .get_num_devices = f2fs_get_num_devices,
2945 .get_devices = f2fs_get_devices,
0b81d077 2946};
0b81d077
JK		 2947#endif
2948
aff063e2
JK		 2949static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
2950 u64 ino, u32 generation)
2951{
2952 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2953 struct inode *inode;
2954
4d57b86d 2955 if (f2fs_check_nid_range(sbi, ino))
910bb12d 2956 return ERR_PTR(-ESTALE);
aff063e2
JK		 2957
2958 /*
2959 * f2fs_iget isn't quite right if the inode is currently unallocated!
2960 * However f2fs_iget currently does appropriate checks to handle stale
2961 * inodes so everything is OK.
2962 */
2963 inode = f2fs_iget(sb, ino);
2964 if (IS_ERR(inode))
2965 return ERR_CAST(inode);
6bacf52f 2966 if (unlikely(generation && inode->i_generation != generation)) {
aff063e2
JK		 2967 /* we didn't find the right inode.. */
2968 iput(inode);
2969 return ERR_PTR(-ESTALE);
2970 }
2971 return inode;
2972}
2973
2974static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
2975 int fh_len, int fh_type)
2976{
2977 return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
2978 f2fs_nfs_get_inode);
2979}
2980
2981static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid,
2982 int fh_len, int fh_type)
2983{
2984 return generic_fh_to_parent(sb, fid, fh_len, fh_type,
2985 f2fs_nfs_get_inode);
2986}
2987
2988static const struct export_operations f2fs_export_ops = {
2989 .fh_to_dentry = f2fs_fh_to_dentry,
2990 .fh_to_parent = f2fs_fh_to_parent,
2991 .get_parent = f2fs_get_parent,
2992};
2993
6d1451bf 2994loff_t max_file_blocks(struct inode *inode)
aff063e2 2995{
7a2af766 2996 loff_t result = 0;
6d1451bf 2997 loff_t leaf_count;
aff063e2 2998
7a2af766
CY		 2999 /*
3000 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
6afc662e 3001 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
7a2af766
CY		 3002 * space in inode.i_addr, it will be more safe to reassign
3003 * result as zero.
3004 */
3005
6d1451bf
CX		 3006 if (inode && f2fs_compressed_file(inode))
3007 leaf_count = ADDRS_PER_BLOCK(inode);
3008 else
3009 leaf_count = DEF_ADDRS_PER_BLOCK;
3010
aff063e2
JK		 3011 /* two direct node blocks */
3012 result += (leaf_count * 2);
3013
3014 /* two indirect node blocks */
3015 leaf_count *= NIDS_PER_BLOCK;
3016 result += (leaf_count * 2);
3017
3018 /* one double indirect node block */
3019 leaf_count *= NIDS_PER_BLOCK;
3020 result += leaf_count;
3021
aff063e2
JK		 3022 return result;
3023}
3024
fd694733
JK		 3025static int __f2fs_commit_super(struct buffer_head *bh,
3026 struct f2fs_super_block *super)
3027{
3028 lock_buffer(bh);
3029 if (super)
3030 memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
fd694733
JK		 3031 set_buffer_dirty(bh);
3032 unlock_buffer(bh);
3033
3034 /* it's rare case, we can do fua all the time */
3adc5fcb 3035 return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
fd694733
JK		 3036}
3037
df728b0f 3038static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
fd694733 3039 struct buffer_head *bh)
9a59b62f 3040{
fd694733
JK		 3041 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3042 (bh->b_data + F2FS_SUPER_OFFSET);
df728b0f 3043 struct super_block *sb = sbi->sb;
9a59b62f
CY		 3044 u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
3045 u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
3046 u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
3047 u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
3048 u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
3049 u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
3050 u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
3051 u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
3052 u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
3053 u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
3054 u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
3055 u32 segment_count = le32_to_cpu(raw_super->segment_count);
3056 u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
fd694733
JK		 3057 u64 main_end_blkaddr = main_blkaddr +
3058 (segment_count_main << log_blocks_per_seg);
3059 u64 seg_end_blkaddr = segment0_blkaddr +
3060 (segment_count << log_blocks_per_seg);
9a59b62f
CY		 3061
3062 if (segment0_blkaddr != cp_blkaddr) {
dcbb4c10
JP		 3063 f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
3064 segment0_blkaddr, cp_blkaddr);
9a59b62f
CY		 3065 return true;
3066 }
3067
3068 if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
3069 sit_blkaddr) {
dcbb4c10
JP		 3070 f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
3071 cp_blkaddr, sit_blkaddr,
3072 segment_count_ckpt << log_blocks_per_seg);
9a59b62f
CY		 3073 return true;
3074 }
3075
3076 if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
3077 nat_blkaddr) {
dcbb4c10
JP		 3078 f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
3079 sit_blkaddr, nat_blkaddr,
3080 segment_count_sit << log_blocks_per_seg);
9a59b62f
CY		 3081 return true;
3082 }
3083
3084 if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
3085 ssa_blkaddr) {
dcbb4c10
JP		 3086 f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
3087 nat_blkaddr, ssa_blkaddr,
3088 segment_count_nat << log_blocks_per_seg);
9a59b62f
CY		 3089 return true;
3090 }
3091
3092 if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
3093 main_blkaddr) {
dcbb4c10
JP		 3094 f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
3095 ssa_blkaddr, main_blkaddr,
3096 segment_count_ssa << log_blocks_per_seg);
9a59b62f
CY		 3097 return true;
3098 }
3099
fd694733 3100 if (main_end_blkaddr > seg_end_blkaddr) {
d89f5891
WX		 3101 f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)",
3102 main_blkaddr, seg_end_blkaddr,
dcbb4c10 3103 segment_count_main << log_blocks_per_seg);
9a59b62f 3104 return true;
fd694733
JK		 3105 } else if (main_end_blkaddr < seg_end_blkaddr) {
3106 int err = 0;
3107 char *res;
3108
3109 /* fix in-memory information all the time */
3110 raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
3111 segment0_blkaddr) >> log_blocks_per_seg);
3112
3113 if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) {
df728b0f 3114 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
fd694733
JK		 3115 res = "internally";
3116 } else {
3117 err = __f2fs_commit_super(bh, NULL);
3118 res = err ? "failed" : "done";
3119 }
d89f5891
WX		 3120 f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)",
3121 res, main_blkaddr, seg_end_blkaddr,
dcbb4c10 3122 segment_count_main << log_blocks_per_seg);
fd694733
JK		 3123 if (err)
3124 return true;
9a59b62f 3125 }
9a59b62f
CY		 3126 return false;
3127}
3128
df728b0f 3129static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
fd694733 3130 struct buffer_head *bh)
aff063e2 3131{
f99ba9ad 3132 block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main;
0cfe75c5 3133 block_t total_sections, blocks_per_seg;
fd694733
JK		 3134 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3135 (bh->b_data + F2FS_SUPER_OFFSET);
d440c52d
JZ		 3136 size_t crc_offset = 0;
3137 __u32 crc = 0;
3138
38fb6d0e
IZ		 3139 if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
3140 f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
3141 F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
3142 return -EINVAL;
3143 }
3144
d440c52d 3145 /* Check checksum_offset and crc in superblock */
7beb01f7 3146 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
d440c52d
JZ		 3147 crc_offset = le32_to_cpu(raw_super->checksum_offset);
3148 if (crc_offset !=
3149 offsetof(struct f2fs_super_block, crc)) {
dcbb4c10
JP		 3150 f2fs_info(sbi, "Invalid SB checksum offset: %zu",
3151 crc_offset);
38fb6d0e 3152 return -EFSCORRUPTED;
d440c52d
JZ		 3153 }
3154 crc = le32_to_cpu(raw_super->crc);
3155 if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
dcbb4c10 3156 f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
38fb6d0e 3157 return -EFSCORRUPTED;
d440c52d
JZ		 3158 }
3159 }
aff063e2 3160
aff063e2 3161 /* Currently, support only 4KB block size */
e584bbe8
CY		 3162 if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) {
3163 f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u",
3164 le32_to_cpu(raw_super->log_blocksize),
3165 F2FS_BLKSIZE_BITS);
38fb6d0e 3166 return -EFSCORRUPTED;
a07ef784 3167 }
5c9b4692 3168
9a59b62f
CY		 3169 /* check log blocks per segment */
3170 if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
dcbb4c10
JP		 3171 f2fs_info(sbi, "Invalid log blocks per segment (%u)",
3172 le32_to_cpu(raw_super->log_blocks_per_seg));
38fb6d0e 3173 return -EFSCORRUPTED;
9a59b62f
CY		 3174 }
3175
55cf9cb6
CY		 3176 /* Currently, support 512/1024/2048/4096 bytes sector size */
3177 if (le32_to_cpu(raw_super->log_sectorsize) >
3178 F2FS_MAX_LOG_SECTOR_SIZE ||
3179 le32_to_cpu(raw_super->log_sectorsize) <
3180 F2FS_MIN_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3181 f2fs_info(sbi, "Invalid log sectorsize (%u)",
3182 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3183 return -EFSCORRUPTED;
a07ef784 3184 }
55cf9cb6
CY		 3185 if (le32_to_cpu(raw_super->log_sectors_per_block) +
3186 le32_to_cpu(raw_super->log_sectorsize) !=
3187 F2FS_MAX_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3188 f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
3189 le32_to_cpu(raw_super->log_sectors_per_block),
3190 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3191 return -EFSCORRUPTED;
a07ef784 3192 }
9a59b62f 3193
0cfe75c5 3194 segment_count = le32_to_cpu(raw_super->segment_count);
f99ba9ad 3195 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
0cfe75c5
JK		 3196 segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3197 secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3198 total_sections = le32_to_cpu(raw_super->section_count);
3199
3200 /* blocks_per_seg should be 512, given the above check */
3201 blocks_per_seg = 1 << le32_to_cpu(raw_super->log_blocks_per_seg);
3202
3203 if (segment_count > F2FS_MAX_SEGMENT ||
3204 segment_count < F2FS_MIN_SEGMENTS) {
dcbb4c10 3205 f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
38fb6d0e 3206 return -EFSCORRUPTED;
0cfe75c5
JK		 3207 }
3208
f99ba9ad 3209 if (total_sections > segment_count_main || total_sections < 1 ||
0cfe75c5 3210 segs_per_sec > segment_count || !segs_per_sec) {
dcbb4c10
JP		 3211 f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
3212 segment_count, total_sections, segs_per_sec);
38fb6d0e 3213 return -EFSCORRUPTED;
0cfe75c5
JK		 3214 }
3215
3a22e9ac
CY		 3216 if (segment_count_main != total_sections * segs_per_sec) {
3217 f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)",
3218 segment_count_main, total_sections, segs_per_sec);
3219 return -EFSCORRUPTED;
3220 }
3221
0cfe75c5 3222 if ((segment_count / segs_per_sec) < total_sections) {
dcbb4c10
JP		 3223 f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
3224 segment_count, segs_per_sec, total_sections);
38fb6d0e 3225 return -EFSCORRUPTED;
0cfe75c5
JK		 3226 }
3227
88960068 3228 if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
dcbb4c10
JP		 3229 f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
3230 segment_count, le64_to_cpu(raw_super->block_count));
38fb6d0e 3231 return -EFSCORRUPTED;
0cfe75c5
JK		 3232 }
3233
9f701f6c
QS		 3234 if (RDEV(0).path[0]) {
3235 block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
3236 int i = 1;
3237
3238 while (i < MAX_DEVICES && RDEV(i).path[0]) {
3239 dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
3240 i++;
3241 }
3242 if (segment_count != dev_seg_count) {
3243 f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
3244 segment_count, dev_seg_count);
3245 return -EFSCORRUPTED;
3246 }
07eb1d69
CY		 3247 } else {
3248 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) &&
3249 !bdev_is_zoned(sbi->sb->s_bdev)) {
3250 f2fs_info(sbi, "Zoned block device path is missing");
3251 return -EFSCORRUPTED;
3252 }
9f701f6c
QS		 3253 }
3254
42bf546c 3255 if (secs_per_zone > total_sections || !secs_per_zone) {
dcbb4c10
JP		 3256 f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
3257 secs_per_zone, total_sections);
38fb6d0e 3258 return -EFSCORRUPTED;
0cfe75c5
JK		 3259 }
3260 if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
3261 raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
3262 (le32_to_cpu(raw_super->extension_count) +
3263 raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
dcbb4c10
JP		 3264 f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
3265 le32_to_cpu(raw_super->extension_count),
3266 raw_super->hot_ext_count,
3267 F2FS_MAX_EXTENSION);
38fb6d0e 3268 return -EFSCORRUPTED;
0cfe75c5
JK		 3269 }
3270
65ddf656
CY		 3271 if (le32_to_cpu(raw_super->cp_payload) >=
3272 (blocks_per_seg - F2FS_CP_PACKS -
3273 NR_CURSEG_PERSIST_TYPE)) {
3274 f2fs_info(sbi, "Insane cp_payload (%u >= %u)",
dcbb4c10 3275 le32_to_cpu(raw_super->cp_payload),
65ddf656
CY		 3276 blocks_per_seg - F2FS_CP_PACKS -
3277 NR_CURSEG_PERSIST_TYPE);
38fb6d0e 3278 return -EFSCORRUPTED;
0cfe75c5
JK		 3279 }
3280
9a59b62f
CY		 3281 /* check reserved ino info */
3282 if (le32_to_cpu(raw_super->node_ino) != 1 ||
3283 le32_to_cpu(raw_super->meta_ino) != 2 ||
3284 le32_to_cpu(raw_super->root_ino) != 3) {
dcbb4c10
JP		 3285 f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
3286 le32_to_cpu(raw_super->node_ino),
3287 le32_to_cpu(raw_super->meta_ino),
3288 le32_to_cpu(raw_super->root_ino));
38fb6d0e 3289 return -EFSCORRUPTED;
9a59b62f
CY		 3290 }
3291
3292 /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
df728b0f 3293 if (sanity_check_area_boundary(sbi, bh))
38fb6d0e 3294 return -EFSCORRUPTED;
9a59b62f 3295
aff063e2
JK		 3296 return 0;
3297}
3298
4d57b86d 3299int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
aff063e2
JK		 3300{
3301 unsigned int total, fsmeta;
577e3495
JK		 3302 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
3303 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2040fce8 3304 unsigned int ovp_segments, reserved_segments;
15d3042a 3305 unsigned int main_segs, blocks_per_seg;
c77ec61c
CY		 3306 unsigned int sit_segs, nat_segs;
3307 unsigned int sit_bitmap_size, nat_bitmap_size;
3308 unsigned int log_blocks_per_seg;
9dc956b2 3309 unsigned int segment_count_main;
e494c2f9 3310 unsigned int cp_pack_start_sum, cp_payload;
7b63f72f
CY		 3311 block_t user_block_count, valid_user_blocks;
3312 block_t avail_node_count, valid_node_count;
65ddf656 3313 unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks;
042be0f8 3314 int i, j;
aff063e2
JK		 3315
3316 total = le32_to_cpu(raw_super->segment_count);
3317 fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
c77ec61c
CY		 3318 sit_segs = le32_to_cpu(raw_super->segment_count_sit);
3319 fsmeta += sit_segs;
3320 nat_segs = le32_to_cpu(raw_super->segment_count_nat);
3321 fsmeta += nat_segs;
aff063e2
JK		 3322 fsmeta += le32_to_cpu(ckpt->rsvd_segment_count);
3323 fsmeta += le32_to_cpu(raw_super->segment_count_ssa);
3324
6bacf52f 3325 if (unlikely(fsmeta >= total))
aff063e2 3326 return 1;
577e3495 3327
2040fce8
JK		 3328 ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
3329 reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count);
3330
a7d9fe3c
JK		 3331 if (!f2fs_sb_has_readonly(sbi) &&
3332 unlikely(fsmeta < F2FS_MIN_META_SEGMENTS ||
2040fce8 3333 ovp_segments == 0 || reserved_segments == 0)) {
dcbb4c10 3334 f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
2040fce8
JK		 3335 return 1;
3336 }
9dc956b2 3337 user_block_count = le64_to_cpu(ckpt->user_block_count);
a7d9fe3c
JK		 3338 segment_count_main = le32_to_cpu(raw_super->segment_count_main) +
3339 (f2fs_sb_has_readonly(sbi) ? 1 : 0);
9dc956b2
CY		 3340 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3341 if (!user_block_count || user_block_count >=
3342 segment_count_main << log_blocks_per_seg) {
dcbb4c10
JP		 3343 f2fs_err(sbi, "Wrong user_block_count: %u",
3344 user_block_count);
9dc956b2
CY		 3345 return 1;
3346 }
3347
7b63f72f
CY		 3348 valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
3349 if (valid_user_blocks > user_block_count) {
dcbb4c10
JP		 3350 f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
3351 valid_user_blocks, user_block_count);
7b63f72f
CY		 3352 return 1;
3353 }
3354
3355 valid_node_count = le32_to_cpu(ckpt->valid_node_count);
27cae0bc 3356 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
7b63f72f 3357 if (valid_node_count > avail_node_count) {
dcbb4c10
JP		 3358 f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
3359 valid_node_count, avail_node_count);
7b63f72f
CY		 3360 return 1;
3361 }
3362
15d3042a
JQ		 3363 main_segs = le32_to_cpu(raw_super->segment_count_main);
3364 blocks_per_seg = sbi->blocks_per_seg;
3365
3366 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
3367 if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
3368 le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
3369 return 1;
a7d9fe3c
JK		 3370
3371 if (f2fs_sb_has_readonly(sbi))
3372 goto check_data;
3373
042be0f8
CY		 3374 for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
3375 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3376 le32_to_cpu(ckpt->cur_node_segno[j])) {
dcbb4c10
JP		 3377 f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
3378 i, j,
3379 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3380 return 1;
3381 }
3382 }
15d3042a 3383 }
a7d9fe3c 3384check_data:
15d3042a
JQ		 3385 for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
3386 if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
3387 le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
3388 return 1;
a7d9fe3c
JK		 3389
3390 if (f2fs_sb_has_readonly(sbi))
3391 goto skip_cross;
3392
042be0f8
CY		 3393 for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
3394 if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
3395 le32_to_cpu(ckpt->cur_data_segno[j])) {
dcbb4c10
JP		 3396 f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
3397 i, j,
3398 le32_to_cpu(ckpt->cur_data_segno[i]));
042be0f8
CY		 3399 return 1;
3400 }
3401 }
3402 }
3403 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
1166c1f2 3404 for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
042be0f8
CY		 3405 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3406 le32_to_cpu(ckpt->cur_data_segno[j])) {
1166c1f2 3407 f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
dcbb4c10
JP		 3408 i, j,
3409 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3410 return 1;
3411 }
3412 }
15d3042a 3413 }
a7d9fe3c 3414skip_cross:
c77ec61c
CY		 3415 sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
3416 nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
c77ec61c
CY		 3417
3418 if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
3419 nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
dcbb4c10
JP		 3420 f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
3421 sit_bitmap_size, nat_bitmap_size);
c77ec61c
CY		 3422 return 1;
3423 }
e494c2f9
CY		 3424
3425 cp_pack_start_sum = __start_sum_addr(sbi);
3426 cp_payload = __cp_payload(sbi);
3427 if (cp_pack_start_sum < cp_payload + 1 ||
3428 cp_pack_start_sum > blocks_per_seg - 1 -
d0b9e42a 3429 NR_CURSEG_PERSIST_TYPE) {
dcbb4c10
JP		 3430 f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
3431 cp_pack_start_sum);
e494c2f9
CY		 3432 return 1;
3433 }
c77ec61c 3434
5dae2d39
CY		 3435 if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
3436 le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
2d008835
CY		 3437 f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
3438 "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
3439 "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
dcbb4c10 3440 le32_to_cpu(ckpt->checksum_offset));
5dae2d39
CY		 3441 return 1;
3442 }
3443
65ddf656
CY		 3444 nat_blocks = nat_segs << log_blocks_per_seg;
3445 nat_bits_bytes = nat_blocks / BITS_PER_BYTE;
3446 nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
3447 if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) &&
3448 (cp_payload + F2FS_CP_PACKS +
3449 NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
3450 f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
3451 cp_payload, nat_bits_blocks);
3452 return -EFSCORRUPTED;
3453 }
3454
1e968fdf 3455 if (unlikely(f2fs_cp_error(sbi))) {
dcbb4c10 3456 f2fs_err(sbi, "A bug case: need to run fsck");
577e3495
JK		 3457 return 1;
3458 }
aff063e2
JK		 3459 return 0;
3460}
3461
3462static void init_sb_info(struct f2fs_sb_info *sbi)
3463{
3464 struct f2fs_super_block *raw_super = sbi->raw_super;
089842de 3465 int i;
aff063e2
JK		 3466
3467 sbi->log_sectors_per_block =
3468 le32_to_cpu(raw_super->log_sectors_per_block);
3469 sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize);
3470 sbi->blocksize = 1 << sbi->log_blocksize;
3471 sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3472 sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg;
3473 sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3474 sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3475 sbi->total_sections = le32_to_cpu(raw_super->section_count);
3476 sbi->total_node_count =
3477 (le32_to_cpu(raw_super->segment_count_nat) / 2)
3478 * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK;
b9ec1094
YL		 3479 F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
3480 F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
3481 F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
5ec4e49f 3482 sbi->cur_victim_sec = NULL_SECNO;
e3080b01
CY		 3483 sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
3484 sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
b1c57c1c 3485 sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
e3080b01 3486 sbi->migration_granularity = sbi->segs_per_sec;
0f6b56ec 3487 sbi->seq_file_ra_mul = MIN_RA_MUL;
aff063e2 3488
ab9fa662 3489 sbi->dir_level = DEF_DIR_LEVEL;
6beceb54 3490 sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
d0239e1b 3491 sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
a7d10cf3
ST		 3492 sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
3493 sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
4354994f 3494 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
03f2c02d
JK		 3495 sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
3496 DEF_UMOUNT_DISCARD_TIMEOUT;
caf0047e 3497 clear_sbi_flag(sbi, SBI_NEED_FSCK);
2658e50d 3498
35782b23
JK		 3499 for (i = 0; i < NR_COUNT_TYPE; i++)
3500 atomic_set(&sbi->nr_pages[i], 0);
3501
c29fd0c0
CY		 3502 for (i = 0; i < META; i++)
3503 atomic_set(&sbi->wb_sync_req[i], 0);
687de7f1 3504
2658e50d
JK		 3505 INIT_LIST_HEAD(&sbi->s_list);
3506 mutex_init(&sbi->umount_mutex);
107a805d 3507 init_rwsem(&sbi->io_order_lock);
aaec2b1d 3508 spin_lock_init(&sbi->cp_lock);
1228b482
CY		 3509
3510 sbi->dirty_device = 0;
3511 spin_lock_init(&sbi->dev_lock);
d0d3f1b3 3512
846ae671 3513 init_rwsem(&sbi->sb_lock);
f5a53edc 3514 init_rwsem(&sbi->pin_sem);
aff063e2
JK		 3515}
3516
523be8a6
JK		 3517static int init_percpu_info(struct f2fs_sb_info *sbi)
3518{
35782b23 3519 int err;
41382ec4 3520
513c5f37
JK		 3521 err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
3522 if (err)
3523 return err;
3524
4a70e255 3525 err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
41382ec4 3526 GFP_KERNEL);
4a70e255
CY		 3527 if (err)
3528 percpu_counter_destroy(&sbi->alloc_valid_block_count);
3529
3530 return err;
523be8a6
JK		 3531}
3532
178053e2 3533#ifdef CONFIG_BLK_DEV_ZONED
de881df9
AR		 3534
3535struct f2fs_report_zones_args {
3536 struct f2fs_dev_info *dev;
3537 bool zone_cap_mismatch;
3538};
3539
d4100351 3540static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx,
de881df9 3541 void *data)
d4100351 3542{
de881df9
AR		 3543 struct f2fs_report_zones_args *rz_args = data;
3544
3545 if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
3546 return 0;
3547
3548 set_bit(idx, rz_args->dev->blkz_seq);
3549 rz_args->dev->zone_capacity_blocks[idx] = zone->capacity >>
3550 F2FS_LOG_SECTORS_PER_BLOCK;
3551 if (zone->len != zone->capacity && !rz_args->zone_cap_mismatch)
3552 rz_args->zone_cap_mismatch = true;
d4100351 3553
d4100351
CH		 3554 return 0;
3555}
3556
3c62be17 3557static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
178053e2 3558{
3c62be17 3559 struct block_device *bdev = FDEV(devi).bdev;
a782483c 3560 sector_t nr_sectors = bdev_nr_sectors(bdev);
de881df9 3561 struct f2fs_report_zones_args rep_zone_arg;
d4100351 3562 int ret;
178053e2 3563
7beb01f7 3564 if (!f2fs_sb_has_blkzoned(sbi))
178053e2
DLM		 3565 return 0;
3566
3c62be17 3567 if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
f99e8648 3568 SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)))
3c62be17 3569 return -EINVAL;
f99e8648 3570 sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev));
3c62be17
JK		 3571 if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz !=
3572 __ilog2_u32(sbi->blocks_per_blkz))
3573 return -EINVAL;
178053e2 3574 sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz);
3c62be17
JK		 3575 FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >>
3576 sbi->log_blocks_per_blkz;
f99e8648 3577 if (nr_sectors & (bdev_zone_sectors(bdev) - 1))
3c62be17 3578 FDEV(devi).nr_blkz++;
178053e2 3579
0b6d4ca0 3580 FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
95175daf
DLM		 3581 BITS_TO_LONGS(FDEV(devi).nr_blkz)
3582 * sizeof(unsigned long),
3583 GFP_KERNEL);
3584 if (!FDEV(devi).blkz_seq)
178053e2
DLM		 3585 return -ENOMEM;
3586
de881df9
AR		 3587 /* Get block zones type and zone-capacity */
3588 FDEV(devi).zone_capacity_blocks = f2fs_kzalloc(sbi,
3589 FDEV(devi).nr_blkz * sizeof(block_t),
3590 GFP_KERNEL);
3591 if (!FDEV(devi).zone_capacity_blocks)
3592 return -ENOMEM;
3593
3594 rep_zone_arg.dev = &FDEV(devi);
3595 rep_zone_arg.zone_cap_mismatch = false;
3596
d4100351 3597 ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb,
de881df9 3598 &rep_zone_arg);
d4100351
CH		 3599 if (ret < 0)
3600 return ret;
178053e2 3601
de881df9
AR		 3602 if (!rep_zone_arg.zone_cap_mismatch) {
3603 kfree(FDEV(devi).zone_capacity_blocks);
3604 FDEV(devi).zone_capacity_blocks = NULL;
3605 }
3606
d4100351 3607 return 0;
178053e2
DLM		 3608}
3609#endif
3610
9076a75f
GZ		 3611/*
3612 * Read f2fs raw super block.
2b39e907
SL		 3613 * Because we have two copies of super block, so read both of them
3614 * to get the first valid one. If any one of them is broken, we pass
3615 * them recovery flag back to the caller.
9076a75f 3616 */
df728b0f 3617static int read_raw_super_block(struct f2fs_sb_info *sbi,
9076a75f 3618 struct f2fs_super_block **raw_super,
e8240f65 3619 int *valid_super_block, int *recovery)
14d7e9de 3620{
df728b0f 3621 struct super_block *sb = sbi->sb;
2b39e907 3622 int block;
e8240f65 3623 struct buffer_head *bh;
fd694733 3624 struct f2fs_super_block *super;
da554e48 3625 int err = 0;
14d7e9de 3626
b39f0de2
YH		 3627 super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL);
3628 if (!super)
3629 return -ENOMEM;
2b39e907
SL		 3630
3631 for (block = 0; block < 2; block++) {
3632 bh = sb_bread(sb, block);
3633 if (!bh) {
dcbb4c10
JP		 3634 f2fs_err(sbi, "Unable to read %dth superblock",
3635 block + 1);
2b39e907 3636 err = -EIO;
ed352042 3637 *recovery = 1;
2b39e907
SL		 3638 continue;
3639 }
14d7e9de 3640
2b39e907 3641 /* sanity checking of raw super */
38fb6d0e
IZ		 3642 err = sanity_check_raw_super(sbi, bh);
3643 if (err) {
dcbb4c10
JP		 3644 f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
3645 block + 1);
2b39e907 3646 brelse(bh);
ed352042 3647 *recovery = 1;
2b39e907
SL		 3648 continue;
3649 }
14d7e9de 3650
2b39e907 3651 if (!*raw_super) {
fd694733
JK		 3652 memcpy(super, bh->b_data + F2FS_SUPER_OFFSET,
3653 sizeof(*super));
2b39e907
SL		 3654 *valid_super_block = block;
3655 *raw_super = super;
3656 }
3657 brelse(bh);
da554e48 3658 }
3659
da554e48 3660 /* No valid superblock */
2b39e907 3661 if (!*raw_super)
742532d1 3662 kfree(super);
2b39e907
SL		 3663 else
3664 err = 0;
da554e48 3665
2b39e907 3666 return err;
14d7e9de 3667}
3668
fd694733 3669int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
26d815ad 3670{
5d909cdb 3671 struct buffer_head *bh;
d440c52d 3672 __u32 crc = 0;
26d815ad
JK		 3673 int err;
3674
df728b0f
JK		 3675 if ((recover && f2fs_readonly(sbi->sb)) ||
3676 bdev_read_only(sbi->sb->s_bdev)) {
3677 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
f2353d7b 3678 return -EROFS;
df728b0f 3679 }
f2353d7b 3680
d440c52d 3681 /* we should update superblock crc here */
7beb01f7 3682 if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
d440c52d
JZ		 3683 crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
3684 offsetof(struct f2fs_super_block, crc));
3685 F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
3686 }
3687
fd694733 3688 /* write back-up superblock first */
0964fc1a 3689 bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
5d909cdb
JK		 3690 if (!bh)
3691 return -EIO;
fd694733 3692 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
5d909cdb 3693 brelse(bh);
c5bda1c8
CY		 3694
3695 /* if we are in recovery path, skip writing valid superblock */
3696 if (recover || err)
5d909cdb 3697 return err;
26d815ad
JK		 3698
3699 /* write current valid superblock */
0964fc1a 3700 bh = sb_bread(sbi->sb, sbi->valid_super_block);
fd694733
JK		 3701 if (!bh)
3702 return -EIO;
3703 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
3704 brelse(bh);
3705 return err;
26d815ad
JK		 3706}
3707
3c62be17
JK		 3708static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
3709{
3710 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
7bb3a371 3711 unsigned int max_devices = MAX_DEVICES;
3c62be17
JK		 3712 int i;
3713
7bb3a371
MS		 3714 /* Initialize single device information */
3715 if (!RDEV(0).path[0]) {
3716 if (!bdev_is_zoned(sbi->sb->s_bdev))
3c62be17 3717 return 0;
7bb3a371
MS		 3718 max_devices = 1;
3719 }
3c62be17 3720
7bb3a371
MS		 3721 /*
3722 * Initialize multiple devices information, or single
3723 * zoned block device information.
3724 */
026f0507
KC		 3725 sbi->devs = f2fs_kzalloc(sbi,
3726 array_size(max_devices,
3727 sizeof(struct f2fs_dev_info)),
3728 GFP_KERNEL);
7bb3a371
MS		 3729 if (!sbi->devs)
3730 return -ENOMEM;
3c62be17 3731
7bb3a371 3732 for (i = 0; i < max_devices; i++) {
3c62be17 3733
7bb3a371
MS		 3734 if (i > 0 && !RDEV(i).path[0])
3735 break;
3736
3737 if (max_devices == 1) {
3738 /* Single zoned block device mount */
3739 FDEV(0).bdev =
3740 blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev,
3c62be17 3741 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371
MS		 3742 } else {
3743 /* Multi-device mount */
3744 memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN);
3745 FDEV(i).total_segments =
3746 le32_to_cpu(RDEV(i).total_segments);
3747 if (i == 0) {
3748 FDEV(i).start_blk = 0;
3749 FDEV(i).end_blk = FDEV(i).start_blk +
3750 (FDEV(i).total_segments <<
3751 sbi->log_blocks_per_seg) - 1 +
3752 le32_to_cpu(raw_super->segment0_blkaddr);
3753 } else {
3754 FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
3755 FDEV(i).end_blk = FDEV(i).start_blk +
3756 (FDEV(i).total_segments <<
3757 sbi->log_blocks_per_seg) - 1;
3758 }
3759 FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path,
3c62be17 3760 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371 3761 }
3c62be17
JK		 3762 if (IS_ERR(FDEV(i).bdev))
3763 return PTR_ERR(FDEV(i).bdev);
3764
3765 /* to release errored devices */
3766 sbi->s_ndevs = i + 1;
3767
3768#ifdef CONFIG_BLK_DEV_ZONED
3769 if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM &&
7beb01f7 3770 !f2fs_sb_has_blkzoned(sbi)) {
833dcd35 3771 f2fs_err(sbi, "Zoned block device feature not enabled");
3c62be17
JK		 3772 return -EINVAL;
3773 }
3774 if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) {
3775 if (init_blkz_info(sbi, i)) {
dcbb4c10 3776 f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
3c62be17
JK		 3777 return -EINVAL;
3778 }
7bb3a371
MS		 3779 if (max_devices == 1)
3780 break;
dcbb4c10
JP		 3781 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)",
3782 i, FDEV(i).path,
3783 FDEV(i).total_segments,
3784 FDEV(i).start_blk, FDEV(i).end_blk,
3785 bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ?
3786 "Host-aware" : "Host-managed");
3c62be17
JK		 3787 continue;
3788 }
3789#endif
dcbb4c10
JP		 3790 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
3791 i, FDEV(i).path,
3792 FDEV(i).total_segments,
3793 FDEV(i).start_blk, FDEV(i).end_blk);
3794 }
3795 f2fs_info(sbi,
3796 "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi));
3c62be17
JK		 3797 return 0;
3798}
3799
5aba5430
DR		 3800static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
3801{
3802#ifdef CONFIG_UNICODE
eca4873e 3803 if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) {
5aba5430
DR		 3804 const struct f2fs_sb_encodings *encoding_info;
3805 struct unicode_map *encoding;
3806 __u16 encoding_flags;
3807
5aba5430
DR		 3808 if (f2fs_sb_read_encoding(sbi->raw_super, &encoding_info,
3809 &encoding_flags)) {
3810 f2fs_err(sbi,
3811 "Encoding requested by superblock is unknown");
3812 return -EINVAL;
3813 }
3814
3815 encoding = utf8_load(encoding_info->version);
3816 if (IS_ERR(encoding)) {
3817 f2fs_err(sbi,
3818 "can't mount with superblock charset: %s-%s "
3819 "not supported by the kernel. flags: 0x%x.",
3820 encoding_info->name, encoding_info->version,
3821 encoding_flags);
3822 return PTR_ERR(encoding);
3823 }
3824 f2fs_info(sbi, "Using encoding defined by superblock: "
3825 "%s-%s with flags 0x%hx", encoding_info->name,
3826 encoding_info->version?:"\b", encoding_flags);
3827
eca4873e
DR		 3828 sbi->sb->s_encoding = encoding;
3829 sbi->sb->s_encoding_flags = encoding_flags;
5aba5430
DR		 3830 }
3831#else
3832 if (f2fs_sb_has_casefold(sbi)) {
3833 f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
3834 return -EINVAL;
3835 }
3836#endif
3837 return 0;
3838}
3839
84b89e5d
JK		 3840static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
3841{
3842 struct f2fs_sm_info *sm_i = SM_I(sbi);
3843
3844 /* adjust parameters according to the volume size */
3845 if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) {
63189b78 3846 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
4f993264
CY		 3847 if (f2fs_block_unit_discard(sbi))
3848 sm_i->dcc_info->discard_granularity = 1;
84b89e5d
JK		 3849 sm_i->ipu_policy = 1 << F2FS_IPU_FORCE;
3850 }
4cac90d5
CY		 3851
3852 sbi->readdir_ra = 1;
84b89e5d
JK		 3853}
3854
aff063e2
JK		 3855static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
3856{
3857 struct f2fs_sb_info *sbi;
da554e48 3858 struct f2fs_super_block *raw_super;
aff063e2 3859 struct inode *root;
99e3e858 3860 int err;
aa2c8c43 3861 bool skip_recovery = false, need_fsck = false;
dabc4a5c 3862 char *options = NULL;
e8240f65 3863 int recovery, i, valid_super_block;
8f1dbbbb 3864 struct curseg_info *seg_i;
aa2c8c43 3865 int retry_cnt = 1;
aff063e2 3866
ed2e621a 3867try_onemore:
da554e48 3868 err = -EINVAL;
3869 raw_super = NULL;
e8240f65 3870 valid_super_block = -1;
da554e48 3871 recovery = 0;
3872
aff063e2
JK		 3873 /* allocate memory for f2fs-specific super block info */
3874 sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
3875 if (!sbi)
3876 return -ENOMEM;
3877
df728b0f
JK		 3878 sbi->sb = sb;
3879
43b6573b
KM		 3880 /* Load the checksum driver */
3881 sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
3882 if (IS_ERR(sbi->s_chksum_driver)) {
dcbb4c10 3883 f2fs_err(sbi, "Cannot load crc32 driver.");
43b6573b
KM		 3884 err = PTR_ERR(sbi->s_chksum_driver);
3885 sbi->s_chksum_driver = NULL;
3886 goto free_sbi;
3887 }
3888
ff9234ad 3889 /* set a block size */
6bacf52f 3890 if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
dcbb4c10 3891 f2fs_err(sbi, "unable to set blocksize");
aff063e2 3892 goto free_sbi;
a07ef784 3893 }
aff063e2 3894
df728b0f 3895 err = read_raw_super_block(sbi, &raw_super, &valid_super_block,
e8240f65 3896 &recovery);
9076a75f
GZ		 3897 if (err)
3898 goto free_sbi;
3899
5fb08372 3900 sb->s_fs_info = sbi;
52763a4b
JK		 3901 sbi->raw_super = raw_super;
3902
704956ec 3903 /* precompute checksum seed for metadata */
7beb01f7 3904 if (f2fs_sb_has_inode_chksum(sbi))
704956ec
CY		 3905 sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
3906 sizeof(raw_super->uuid));
3907
498c5e9f 3908 default_options(sbi);
aff063e2 3909 /* parse mount options */
dabc4a5c
JK		 3910 options = kstrdup((const char *)data, GFP_KERNEL);
3911 if (data && !options) {
3912 err = -ENOMEM;
aff063e2 3913 goto free_sb_buf;
dabc4a5c
JK		 3914 }
3915
ed318a6c 3916 err = parse_options(sb, options, false);
dabc4a5c
JK		 3917 if (err)
3918 goto free_options;
aff063e2 3919
6d1451bf 3920 sb->s_maxbytes = max_file_blocks(NULL) <<
e0afc4d6 3921 le32_to_cpu(raw_super->log_blocksize);
aff063e2 3922 sb->s_max_links = F2FS_LINK_MAX;
aff063e2 3923
5aba5430
DR		 3924 err = f2fs_setup_casefold(sbi);
3925 if (err)
3926 goto free_options;
3927
0abd675e
CY		 3928#ifdef CONFIG_QUOTA
3929 sb->dq_op = &f2fs_quota_operations;
bc88ac96 3930 sb->s_qcop = &f2fs_quotactl_ops;
5c57132e 3931 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
292c196a 3932
7beb01f7 3933 if (f2fs_sb_has_quota_ino(sbi)) {
292c196a
CY		 3934 for (i = 0; i < MAXQUOTAS; i++) {
3935 if (f2fs_qf_ino(sbi->sb, i))
3936 sbi->nquota_files++;
3937 }
3938 }
0abd675e
CY		 3939#endif
3940
aff063e2 3941 sb->s_op = &f2fs_sops;
643fa961 3942#ifdef CONFIG_FS_ENCRYPTION
0b81d077 3943 sb->s_cop = &f2fs_cryptops;
95ae251f
EB		 3944#endif
3945#ifdef CONFIG_FS_VERITY
3946 sb->s_vop = &f2fs_verityops;
ffcc4182 3947#endif
aff063e2
JK		 3948 sb->s_xattr = f2fs_xattr_handlers;
3949 sb->s_export_op = &f2fs_export_ops;
3950 sb->s_magic = F2FS_SUPER_MAGIC;
aff063e2 3951 sb->s_time_gran = 1;
1751e8a6
LT		 3952 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
3953 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
85787090 3954 memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid));
578c6478 3955 sb->s_iflags |= SB_I_CGROUPWB;
aff063e2
JK		 3956
3957 /* init f2fs-specific super block info */
e8240f65 3958 sbi->valid_super_block = valid_super_block;
fb24fea7 3959 init_rwsem(&sbi->gc_lock);
853137ce 3960 mutex_init(&sbi->writepages);
8769918b 3961 init_rwsem(&sbi->cp_global_sem);
b3582c68 3962 init_rwsem(&sbi->node_write);
59c9081b 3963 init_rwsem(&sbi->node_change);
315df839
JK		 3964
3965 /* disallow all the data/node/meta page writes */
3966 set_sbi_flag(sbi, SBI_POR_DOING);
aff063e2 3967 spin_lock_init(&sbi->stat_lock);
971767ca 3968
458e6197 3969 for (i = 0; i < NR_PAGE_TYPE; i++) {
5f029c04 3970 int n = (i == META) ? 1 : NR_TEMP_TYPE;
a912b54d
JK		 3971 int j;
3972
c8606593
KC		 3973 sbi->write_io[i] =
3974 f2fs_kmalloc(sbi,
3975 array_size(n,
3976 sizeof(struct f2fs_bio_info)),
3977 GFP_KERNEL);
b63def91
CJ		 3978 if (!sbi->write_io[i]) {
3979 err = -ENOMEM;
0b2103e8 3980 goto free_bio_info;
b63def91 3981 }
a912b54d
JK		 3982
3983 for (j = HOT; j < n; j++) {
3984 init_rwsem(&sbi->write_io[i][j].io_rwsem);
3985 sbi->write_io[i][j].sbi = sbi;
3986 sbi->write_io[i][j].bio = NULL;
fb830fc5
CY		 3987 spin_lock_init(&sbi->write_io[i][j].io_lock);
3988 INIT_LIST_HEAD(&sbi->write_io[i][j].io_list);
0b20fcec
CY		 3989 INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list);
3990 init_rwsem(&sbi->write_io[i][j].bio_list_lock);
a912b54d 3991 }
458e6197 3992 }
971767ca 3993
b873b798 3994 init_rwsem(&sbi->cp_rwsem);
db6ec53b 3995 init_rwsem(&sbi->quota_sem);
fb51b5ef 3996 init_waitqueue_head(&sbi->cp_wait);
aff063e2
JK		 3997 init_sb_info(sbi);
3998
52118743
DJ		 3999 err = f2fs_init_iostat(sbi);
4000 if (err)
4001 goto free_bio_info;
4002
523be8a6
JK		 4003 err = init_percpu_info(sbi);
4004 if (err)
a4b68176 4005 goto free_iostat;
523be8a6 4006
c72db71e 4007 if (F2FS_IO_ALIGNED(sbi)) {
0a595eba 4008 sbi->write_io_dummy =
a3ebfe4f 4009 mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
1727f317
CY		 4010 if (!sbi->write_io_dummy) {
4011 err = -ENOMEM;
d7997e63 4012 goto free_percpu;
1727f317 4013 }
0a595eba
JK		 4014 }
4015
a999150f
CY		 4016 /* init per sbi slab cache */
4017 err = f2fs_init_xattr_caches(sbi);
4018 if (err)
4019 goto free_io_dummy;
31083031
CY		 4020 err = f2fs_init_page_array_cache(sbi);
4021 if (err)
4022 goto free_xattr_cache;
a999150f 4023
aff063e2
JK		 4024 /* get an inode for meta space */
4025 sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
4026 if (IS_ERR(sbi->meta_inode)) {
dcbb4c10 4027 f2fs_err(sbi, "Failed to read F2FS meta data inode");
aff063e2 4028 err = PTR_ERR(sbi->meta_inode);
31083031 4029 goto free_page_array_cache;
aff063e2
JK		 4030 }
4031
4d57b86d 4032 err = f2fs_get_valid_checkpoint(sbi);
a07ef784 4033 if (err) {
dcbb4c10 4034 f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
aff063e2 4035 goto free_meta_inode;
a07ef784 4036 }
aff063e2 4037
af033b2a
CY		 4038 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
4039 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
db610a64
JK		 4040 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
4041 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
4042 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
4043 }
af033b2a 4044
04f0b2ea
QS		 4045 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
4046 set_sbi_flag(sbi, SBI_NEED_FSCK);
4047
3c62be17
JK		 4048 /* Initialize device list */
4049 err = f2fs_scan_devices(sbi);
4050 if (err) {
dcbb4c10 4051 f2fs_err(sbi, "Failed to find devices");
3c62be17
JK		 4052 goto free_devices;
4053 }
4054
4c8ff709
CY		 4055 err = f2fs_init_post_read_wq(sbi);
4056 if (err) {
4057 f2fs_err(sbi, "Failed to initialize post read workqueue");
4058 goto free_devices;
4059 }
4060
aff063e2
JK		 4061 sbi->total_valid_node_count =
4062 le32_to_cpu(sbi->ckpt->valid_node_count);
513c5f37
JK		 4063 percpu_counter_set(&sbi->total_valid_inode_count,
4064 le32_to_cpu(sbi->ckpt->valid_inode_count));
aff063e2
JK		 4065 sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count);
4066 sbi->total_valid_block_count =
4067 le64_to_cpu(sbi->ckpt->valid_block_count);
4068 sbi->last_valid_block_count = sbi->total_valid_block_count;
daeb433e 4069 sbi->reserved_blocks = 0;
80d42145 4070 sbi->current_reserved_blocks = 0;
7e65be49 4071 limit_reserve_root(sbi);
1ae18f71 4072 adjust_unusable_cap_perc(sbi);
41382ec4 4073
c227f912
CY		 4074 for (i = 0; i < NR_INODE_TYPE; i++) {
4075 INIT_LIST_HEAD(&sbi->inode_list[i]);
4076 spin_lock_init(&sbi->inode_lock[i]);
4077 }
040d2bb3 4078 mutex_init(&sbi->flush_lock);
aff063e2 4079
4d57b86d 4080 f2fs_init_extent_cache_info(sbi);
1dcc336b 4081
4d57b86d 4082 f2fs_init_ino_entry_info(sbi);
aff063e2 4083
50fa53ec
CY		 4084 f2fs_init_fsync_node_info(sbi);
4085
261eeb9c
DJ		 4086 /* setup checkpoint request control and start checkpoint issue thread */
4087 f2fs_init_ckpt_req_control(sbi);
3f7070b0 4088 if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) &&
261eeb9c
DJ		 4089 test_opt(sbi, MERGE_CHECKPOINT)) {
4090 err = f2fs_start_ckpt_thread(sbi);
4091 if (err) {
4092 f2fs_err(sbi,
4093 "Failed to start F2FS issue_checkpoint_thread (%d)",
4094 err);
4095 goto stop_ckpt_thread;
4096 }
4097 }
4098
aff063e2 4099 /* setup f2fs internal modules */
4d57b86d 4100 err = f2fs_build_segment_manager(sbi);
a07ef784 4101 if (err) {
dcbb4c10
JP		 4102 f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
4103 err);
aff063e2 4104 goto free_sm;
a07ef784 4105 }
4d57b86d 4106 err = f2fs_build_node_manager(sbi);
a07ef784 4107 if (err) {
dcbb4c10
JP		 4108 f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
4109 err);
aff063e2 4110 goto free_nm;
a07ef784 4111 }
aff063e2 4112
8f1dbbbb 4113 /* For write statistics */
3a0a9cbc 4114 sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
8f1dbbbb
SL		 4115
4116 /* Read accumulated write IO statistics if exists */
4117 seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
4118 if (__exist_node_summaries(sbi))
4119 sbi->kbytes_written =
b2dde6fc 4120 le64_to_cpu(seg_i->journal->info.kbytes_written);
8f1dbbbb 4121
4d57b86d 4122 f2fs_build_gc_manager(sbi);
aff063e2 4123
60aa4d55
ST		 4124 err = f2fs_build_stats(sbi);
4125 if (err)
4126 goto free_nm;
4127
aff063e2
JK		 4128 /* get an inode for node space */
4129 sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
4130 if (IS_ERR(sbi->node_inode)) {
dcbb4c10 4131 f2fs_err(sbi, "Failed to read node inode");
aff063e2 4132 err = PTR_ERR(sbi->node_inode);
60aa4d55 4133 goto free_stats;
aff063e2
JK		 4134 }
4135
aff063e2
JK		 4136 /* read root inode and dentry */
4137 root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
4138 if (IS_ERR(root)) {
dcbb4c10 4139 f2fs_err(sbi, "Failed to read root inode");
aff063e2 4140 err = PTR_ERR(root);
60aa4d55 4141 goto free_node_inode;
aff063e2 4142 }
bcbfbd60
CY		 4143 if (!S_ISDIR(root->i_mode) || !root->i_blocks ||
4144 !root->i_size || !root->i_nlink) {
9d847950 4145 iput(root);
8f99a946 4146 err = -EINVAL;
60aa4d55 4147 goto free_node_inode;
8f99a946 4148 }
aff063e2
JK		 4149
4150 sb->s_root = d_make_root(root); /* allocate root dentry */
4151 if (!sb->s_root) {
4152 err = -ENOMEM;
025cdb16 4153 goto free_node_inode;
aff063e2
JK		 4154 }
4155
6ce19aff 4156 err = f2fs_init_compress_inode(sbi);
b59d0bae 4157 if (err)
a398101a 4158 goto free_root_inode;
b59d0bae 4159
6ce19aff
CY		 4160 err = f2fs_register_sysfs(sbi);
4161 if (err)
4162 goto free_compress_inode;
4163
ea676733 4164#ifdef CONFIG_QUOTA
76cf05d7 4165 /* Enable quota usage during mount */
7beb01f7 4166 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
ea676733 4167 err = f2fs_enable_quotas(sb);
730746ce 4168 if (err)
dcbb4c10 4169 f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
ea676733
JK		 4170 }
4171#endif
7a88ddb5 4172 /* if there are any orphan inodes, free them */
4d57b86d 4173 err = f2fs_recover_orphan_inodes(sbi);
4b2414d0 4174 if (err)
ea676733 4175 goto free_meta;
4b2414d0 4176
4354994f 4177 if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
aa2c8c43 4178 goto reset_checkpoint;
4354994f 4179
6437d1b0 4180 /* recover fsynced data */
a9117eca
CY		 4181 if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
4182 !test_opt(sbi, NORECOVERY)) {
081d78c2
JK		 4183 /*
4184 * mount should be failed, when device has readonly mode, and
4185 * previous checkpoint was not done by clean system shutdown.
4186 */
b61af314 4187 if (f2fs_hw_is_readonly(sbi)) {
23738e74
CY		 4188 if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4189 err = f2fs_recover_fsync_data(sbi, true);
4190 if (err > 0) {
4191 err = -EROFS;
4192 f2fs_err(sbi, "Need to recover fsync data, but "
4193 "write access unavailable, please try "
4194 "mount w/ disable_roll_forward or norecovery");
4195 }
4196 if (err < 0)
4197 goto free_meta;
4198 }
4199 f2fs_info(sbi, "write access unavailable, skipping recovery");
b61af314 4200 goto reset_checkpoint;
081d78c2 4201 }
2adc3505
CY		 4202
4203 if (need_fsck)
4204 set_sbi_flag(sbi, SBI_NEED_FSCK);
4205
aa2c8c43
CY		 4206 if (skip_recovery)
4207 goto reset_checkpoint;
a468f0ef 4208
4d57b86d 4209 err = f2fs_recover_fsync_data(sbi, false);
6781eabb 4210 if (err < 0) {
aa2c8c43
CY		 4211 if (err != -ENOMEM)
4212 skip_recovery = true;
2adc3505 4213 need_fsck = true;
dcbb4c10
JP		 4214 f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
4215 err);
4b2414d0 4216 goto free_meta;
ed2e621a 4217 }
6781eabb 4218 } else {
4d57b86d 4219 err = f2fs_recover_fsync_data(sbi, true);
6781eabb
JK		 4220
4221 if (!f2fs_readonly(sb) && err > 0) {
4222 err = -EINVAL;
dcbb4c10 4223 f2fs_err(sbi, "Need to recover fsync data");
ea676733 4224 goto free_meta;
6781eabb 4225 }
6437d1b0 4226 }
d508c94e
SK		 4227
4228 /*
4229 * If the f2fs is not readonly and fsync data recovery succeeds,
4230 * check zoned block devices' write pointer consistency.
4231 */
4232 if (!err && !f2fs_readonly(sb) && f2fs_sb_has_blkzoned(sbi)) {
4233 err = f2fs_check_write_pointer(sbi);
4234 if (err)
4235 goto free_meta;
4236 }
4237
aa2c8c43 4238reset_checkpoint:
093749e2
CY		 4239 f2fs_init_inmem_curseg(sbi);
4240
4d57b86d 4241 /* f2fs_recover_fsync_data() cleared this already */
315df839 4242 clear_sbi_flag(sbi, SBI_POR_DOING);
b59d0bae 4243
4354994f
DR		 4244 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
4245 err = f2fs_disable_checkpoint(sbi);
4246 if (err)
812a9597 4247 goto sync_free_meta;
4354994f
DR		 4248 } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
4249 f2fs_enable_checkpoint(sbi);
4250 }
4251
6437d1b0
JK		 4252 /*
4253 * If filesystem is not mounted as read-only then
4254 * do start the gc_thread.
4255 */
5911d2d1
CY		 4256 if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF ||
4257 test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) {
6437d1b0 4258 /* After POR, we can run background GC thread.*/
4d57b86d 4259 err = f2fs_start_gc_thread(sbi);
6437d1b0 4260 if (err)
812a9597 4261 goto sync_free_meta;
6437d1b0 4262 }
5222595d 4263 kvfree(options);
da554e48 4264
4265 /* recover broken superblock */
f2353d7b 4266 if (recovery) {
41214b3c 4267 err = f2fs_commit_super(sbi, true);
dcbb4c10
JP		 4268 f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
4269 sbi->valid_super_block ? 1 : 2, err);
da554e48 4270 }
4271
bae01eda
CY		 4272 f2fs_join_shrinker(sbi);
4273
84b89e5d
JK		 4274 f2fs_tuning_parameters(sbi);
4275
dcbb4c10
JP		 4276 f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
4277 cur_cp_version(F2FS_CKPT(sbi)));
6beceb54 4278 f2fs_update_time(sbi, CP_TIME);
d0239e1b 4279 f2fs_update_time(sbi, REQ_TIME);
db610a64 4280 clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
aff063e2 4281 return 0;
6437d1b0 4282
812a9597
JK		 4283sync_free_meta:
4284 /* safe to flush all the data */
4285 sync_filesystem(sbi->sb);
aa2c8c43 4286 retry_cnt = 0;
812a9597 4287
4b2414d0 4288free_meta:
ea676733 4289#ifdef CONFIG_QUOTA
26b5a079 4290 f2fs_truncate_quota_inode_pages(sb);
7beb01f7 4291 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
ea676733
JK		 4292 f2fs_quota_off_umount(sbi->sb);
4293#endif
4b2414d0 4294 /*
4d57b86d 4295 * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
4b2414d0 4296 * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
4d57b86d
CY		 4297 * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
4298 * falls into an infinite loop in f2fs_sync_meta_pages().
4b2414d0
CY		 4299 */
4300 truncate_inode_pages_final(META_MAPPING(sbi));
812a9597
JK		 4301 /* evict some inodes being cached by GC */
4302 evict_inodes(sb);
dc6b2055 4303 f2fs_unregister_sysfs(sbi);
6ce19aff
CY		 4304free_compress_inode:
4305 f2fs_destroy_compress_inode(sbi);
aff063e2
JK		 4306free_root_inode:
4307 dput(sb->s_root);
4308 sb->s_root = NULL;
4309free_node_inode:
4d57b86d 4310 f2fs_release_ino_entry(sbi, true);
bae01eda 4311 truncate_inode_pages_final(NODE_MAPPING(sbi));
aff063e2 4312 iput(sbi->node_inode);
7c77bf7d 4313 sbi->node_inode = NULL;
60aa4d55
ST		 4314free_stats:
4315 f2fs_destroy_stats(sbi);
aff063e2 4316free_nm:
4d57b86d 4317 f2fs_destroy_node_manager(sbi);
aff063e2 4318free_sm:
4d57b86d 4319 f2fs_destroy_segment_manager(sbi);
4c8ff709 4320 f2fs_destroy_post_read_wq(sbi);
261eeb9c
DJ		 4321stop_ckpt_thread:
4322 f2fs_stop_ckpt_thread(sbi);
3c62be17
JK		 4323free_devices:
4324 destroy_device_list(sbi);
5222595d 4325 kvfree(sbi->ckpt);
aff063e2
JK		 4326free_meta_inode:
4327 make_bad_inode(sbi->meta_inode);
4328 iput(sbi->meta_inode);
7c77bf7d 4329 sbi->meta_inode = NULL;
31083031
CY		 4330free_page_array_cache:
4331 f2fs_destroy_page_array_cache(sbi);
a999150f
CY		 4332free_xattr_cache:
4333 f2fs_destroy_xattr_caches(sbi);
0a595eba
JK		 4334free_io_dummy:
4335 mempool_destroy(sbi->write_io_dummy);
d7997e63
CY		 4336free_percpu:
4337 destroy_percpu_info(sbi);
a4b68176
DJ		 4338free_iostat:
4339 f2fs_destroy_iostat(sbi);
d7997e63 4340free_bio_info:
a912b54d 4341 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 4342 kvfree(sbi->write_io[i]);
5aba5430
DR		 4343
4344#ifdef CONFIG_UNICODE
eca4873e 4345 utf8_unload(sb->s_encoding);
89ff6005 4346 sb->s_encoding = NULL;
5aba5430 4347#endif
d7997e63 4348free_options:
4b2414d0
CY		 4349#ifdef CONFIG_QUOTA
4350 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 4351 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 4352#endif
ac4acb1f 4353 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
5222595d 4354 kvfree(options);
aff063e2 4355free_sb_buf:
742532d1 4356 kfree(raw_super);
aff063e2 4357free_sbi:
43b6573b
KM		 4358 if (sbi->s_chksum_driver)
4359 crypto_free_shash(sbi->s_chksum_driver);
742532d1 4360 kfree(sbi);
ed2e621a
JK		 4361
4362 /* give only one another chance */
aa2c8c43
CY		 4363 if (retry_cnt > 0 && skip_recovery) {
4364 retry_cnt--;
ed2e621a
JK		 4365 shrink_dcache_sb(sb);
4366 goto try_onemore;
4367 }
aff063e2
JK		 4368 return err;
4369}
4370
4371static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags,
4372 const char *dev_name, void *data)
4373{
4374 return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super);
4375}
4376
30a5537f
JK		 4377static void kill_f2fs_super(struct super_block *sb)
4378{
cce13252 4379 if (sb->s_root) {
1cb50f87
JK		 4380 struct f2fs_sb_info *sbi = F2FS_SB(sb);
4381
4382 set_sbi_flag(sbi, SBI_IS_CLOSE);
4383 f2fs_stop_gc_thread(sbi);
4384 f2fs_stop_discard_thread(sbi);
4385
6ce19aff
CY		 4386#ifdef CONFIG_F2FS_FS_COMPRESSION
4387 /*
4388 * latter evict_inode() can bypass checking and invalidating
4389 * compress inode cache.
4390 */
4391 if (test_opt(sbi, COMPRESS_CACHE))
4392 truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
4393#endif
4394
1cb50f87
JK		 4395 if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
4396 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4397 struct cp_control cpc = {
4398 .reason = CP_UMOUNT,
4399 };
4400 f2fs_write_checkpoint(sbi, &cpc);
4401 }
1378752b
CY		 4402
4403 if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb))
4404 sb->s_flags &= ~SB_RDONLY;
cce13252 4405 }
30a5537f
JK		 4406 kill_block_super(sb);
4407}
4408
aff063e2
JK		 4409static struct file_system_type f2fs_fs_type = {
4410 .owner = THIS_MODULE,
4411 .name = "f2fs",
4412 .mount = f2fs_mount,
30a5537f 4413 .kill_sb = kill_f2fs_super,
aff063e2
JK		 4414 .fs_flags = FS_REQUIRES_DEV,
4415};
7f78e035 4416MODULE_ALIAS_FS("f2fs");
aff063e2 4417
6e6093a8 4418static int __init init_inodecache(void)
aff063e2 4419{
5d097056
VD		 4420 f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache",
4421 sizeof(struct f2fs_inode_info), 0,
4422 SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL);
6bacf52f 4423 if (!f2fs_inode_cachep)
aff063e2
JK		 4424 return -ENOMEM;
4425 return 0;
4426}
4427
4428static void destroy_inodecache(void)
4429{
4430 /*
4431 * Make sure all delayed rcu free inodes are flushed before we
4432 * destroy cache.
4433 */
4434 rcu_barrier();
4435 kmem_cache_destroy(f2fs_inode_cachep);
4436}
4437
4438static int __init init_f2fs_fs(void)
4439{
4440 int err;
4441
4071e67c
AP		 4442 if (PAGE_SIZE != F2FS_BLKSIZE) {
4443 printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n",
4444 PAGE_SIZE, F2FS_BLKSIZE);
4445 return -EINVAL;
4446 }
4447
aff063e2
JK		 4448 err = init_inodecache();
4449 if (err)
4450 goto fail;
4d57b86d 4451 err = f2fs_create_node_manager_caches();
aff063e2 4452 if (err)
9890ff3f 4453 goto free_inodecache;
4d57b86d 4454 err = f2fs_create_segment_manager_caches();
aff063e2 4455 if (err)
9890ff3f 4456 goto free_node_manager_caches;
4d57b86d 4457 err = f2fs_create_checkpoint_caches();
aff063e2 4458 if (err)
06292073 4459 goto free_segment_manager_caches;
cad83c96 4460 err = f2fs_create_recovery_cache();
1dcc336b
CY		 4461 if (err)
4462 goto free_checkpoint_caches;
cad83c96
CY		 4463 err = f2fs_create_extent_cache();
4464 if (err)
4465 goto free_recovery_cache;
093749e2 4466 err = f2fs_create_garbage_collection_cache();
a398101a 4467 if (err)
1dcc336b 4468 goto free_extent_cache;
093749e2
CY		 4469 err = f2fs_init_sysfs();
4470 if (err)
4471 goto free_garbage_collection_cache;
2658e50d 4472 err = register_shrinker(&f2fs_shrinker_info);
cfc4d971 4473 if (err)
a398101a 4474 goto free_sysfs;
2658e50d
JK		 4475 err = register_filesystem(&f2fs_fs_type);
4476 if (err)
4477 goto free_shrinker;
21acc07d 4478 f2fs_create_root_stats();
6dbb1796
EB		 4479 err = f2fs_init_post_read_processing();
4480 if (err)
4481 goto free_root_stats;
a4b68176 4482 err = f2fs_init_iostat_processing();
0b20fcec
CY		 4483 if (err)
4484 goto free_post_read;
a4b68176
DJ		 4485 err = f2fs_init_bio_entry_cache();
4486 if (err)
4487 goto free_iostat;
f543805f
CY		 4488 err = f2fs_init_bioset();
4489 if (err)
4490 goto free_bio_enrty_cache;
5e6bbde9
CY		 4491 err = f2fs_init_compress_mempool();
4492 if (err)
4493 goto free_bioset;
c68d6c88
CY		 4494 err = f2fs_init_compress_cache();
4495 if (err)
4496 goto free_compress_mempool;
4d9a2bb1
CY		 4497 err = f2fs_create_casefold_cache();
4498 if (err)
4499 goto free_compress_cache;
9890ff3f 4500 return 0;
4d9a2bb1
CY		 4501free_compress_cache:
4502 f2fs_destroy_compress_cache();
c68d6c88
CY		 4503free_compress_mempool:
4504 f2fs_destroy_compress_mempool();
5e6bbde9
CY		 4505free_bioset:
4506 f2fs_destroy_bioset();
f543805f
CY		 4507free_bio_enrty_cache:
4508 f2fs_destroy_bio_entry_cache();
a4b68176
DJ		 4509free_iostat:
4510 f2fs_destroy_iostat_processing();
0b20fcec
CY		 4511free_post_read:
4512 f2fs_destroy_post_read_processing();
6dbb1796
EB		 4513free_root_stats:
4514 f2fs_destroy_root_stats();
787c7b8c 4515 unregister_filesystem(&f2fs_fs_type);
2658e50d
JK		 4516free_shrinker:
4517 unregister_shrinker(&f2fs_shrinker_info);
a398101a 4518free_sysfs:
dc6b2055 4519 f2fs_exit_sysfs();
093749e2
CY		 4520free_garbage_collection_cache:
4521 f2fs_destroy_garbage_collection_cache();
1dcc336b 4522free_extent_cache:
4d57b86d 4523 f2fs_destroy_extent_cache();
cad83c96
CY		 4524free_recovery_cache:
4525 f2fs_destroy_recovery_cache();
9890ff3f 4526free_checkpoint_caches:
4d57b86d 4527 f2fs_destroy_checkpoint_caches();
7fd9e544 4528free_segment_manager_caches:
4d57b86d 4529 f2fs_destroy_segment_manager_caches();
9890ff3f 4530free_node_manager_caches:
4d57b86d 4531 f2fs_destroy_node_manager_caches();
9890ff3f
ZH		 4532free_inodecache:
4533 destroy_inodecache();
aff063e2
JK		 4534fail:
4535 return err;
4536}
4537
4538static void __exit exit_f2fs_fs(void)
4539{
4d9a2bb1 4540 f2fs_destroy_casefold_cache();
c68d6c88 4541 f2fs_destroy_compress_cache();
5e6bbde9 4542 f2fs_destroy_compress_mempool();
f543805f 4543 f2fs_destroy_bioset();
0b20fcec 4544 f2fs_destroy_bio_entry_cache();
a4b68176 4545 f2fs_destroy_iostat_processing();
6dbb1796 4546 f2fs_destroy_post_read_processing();
4589d25d 4547 f2fs_destroy_root_stats();
aff063e2 4548 unregister_filesystem(&f2fs_fs_type);
b8bef79d 4549 unregister_shrinker(&f2fs_shrinker_info);
dc6b2055 4550 f2fs_exit_sysfs();
093749e2 4551 f2fs_destroy_garbage_collection_cache();
4d57b86d 4552 f2fs_destroy_extent_cache();
cad83c96 4553 f2fs_destroy_recovery_cache();
4d57b86d
CY		 4554 f2fs_destroy_checkpoint_caches();
4555 f2fs_destroy_segment_manager_caches();
4556 f2fs_destroy_node_manager_caches();
aff063e2
JK		 4557 destroy_inodecache();
4558}
4559
4560module_init(init_f2fs_fs)
4561module_exit(exit_f2fs_fs)
4562
4563MODULE_AUTHOR("Samsung Electronics's Praesto Team");
4564MODULE_DESCRIPTION("Flash Friendly File System");
4565MODULE_LICENSE("GPL");
0dd57178 4566MODULE_SOFTDEP("pre: crc32");
b4b9d34c 4567
Linux 6.x block layer and io_uring tree(s)