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Merge tag 'backlight-next-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git...
[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:
f7db8dd6
CY		 664 if (!f2fs_hw_support_discard(sbi)) {
665 f2fs_warn(sbi, "device does not support discard");
666 break;
667 }
7d20c8ab 668 set_opt(sbi, DISCARD);
696c018c 669 break;
64058be9 670 case Opt_nodiscard:
f7db8dd6 671 if (f2fs_hw_should_discard(sbi)) {
dcbb4c10 672 f2fs_warn(sbi, "discard is required for zoned block devices");
96ba2dec
DLM		 673 return -EINVAL;
674 }
64058be9 675 clear_opt(sbi, DISCARD);
487df616 676 break;
696c018c
NJ		 677 case Opt_noheap:
678 set_opt(sbi, NOHEAP);
679 break;
7a20b8a6
JK		 680 case Opt_heap:
681 clear_opt(sbi, NOHEAP);
682 break;
696c018c 683#ifdef CONFIG_F2FS_FS_XATTR
4058c511
KA		 684 case Opt_user_xattr:
685 set_opt(sbi, XATTR_USER);
686 break;
696c018c
NJ		 687 case Opt_nouser_xattr:
688 clear_opt(sbi, XATTR_USER);
689 break;
444c580f
JK		 690 case Opt_inline_xattr:
691 set_opt(sbi, INLINE_XATTR);
692 break;
23cf7212
CY		 693 case Opt_noinline_xattr:
694 clear_opt(sbi, INLINE_XATTR);
695 break;
6afc662e
CY		 696 case Opt_inline_xattr_size:
697 if (args->from && match_int(args, &arg))
698 return -EINVAL;
699 set_opt(sbi, INLINE_XATTR_SIZE);
63189b78 700 F2FS_OPTION(sbi).inline_xattr_size = arg;
6afc662e 701 break;
696c018c 702#else
4058c511 703 case Opt_user_xattr:
dcbb4c10 704 f2fs_info(sbi, "user_xattr options not supported");
4058c511 705 break;
696c018c 706 case Opt_nouser_xattr:
dcbb4c10 707 f2fs_info(sbi, "nouser_xattr options not supported");
696c018c 708 break;
444c580f 709 case Opt_inline_xattr:
dcbb4c10 710 f2fs_info(sbi, "inline_xattr options not supported");
444c580f 711 break;
23cf7212 712 case Opt_noinline_xattr:
dcbb4c10 713 f2fs_info(sbi, "noinline_xattr options not supported");
23cf7212 714 break;
696c018c
NJ		 715#endif
716#ifdef CONFIG_F2FS_FS_POSIX_ACL
4058c511
KA		 717 case Opt_acl:
718 set_opt(sbi, POSIX_ACL);
719 break;
696c018c
NJ		 720 case Opt_noacl:
721 clear_opt(sbi, POSIX_ACL);
722 break;
723#else
4058c511 724 case Opt_acl:
dcbb4c10 725 f2fs_info(sbi, "acl options not supported");
4058c511 726 break;
696c018c 727 case Opt_noacl:
dcbb4c10 728 f2fs_info(sbi, "noacl options not supported");
696c018c
NJ		 729 break;
730#endif
731 case Opt_active_logs:
732 if (args->from && match_int(args, &arg))
733 return -EINVAL;
d0b9e42a
CY		 734 if (arg != 2 && arg != 4 &&
735 arg != NR_CURSEG_PERSIST_TYPE)
696c018c 736 return -EINVAL;
63189b78 737 F2FS_OPTION(sbi).active_logs = arg;
696c018c
NJ		 738 break;
739 case Opt_disable_ext_identify:
740 set_opt(sbi, DISABLE_EXT_IDENTIFY);
741 break;
8274de77
HL		 742 case Opt_inline_data:
743 set_opt(sbi, INLINE_DATA);
744 break;
5efd3c6f
CY		 745 case Opt_inline_dentry:
746 set_opt(sbi, INLINE_DENTRY);
747 break;
97c1794a
CY		 748 case Opt_noinline_dentry:
749 clear_opt(sbi, INLINE_DENTRY);
750 break;
6b4afdd7
JK		 751 case Opt_flush_merge:
752 set_opt(sbi, FLUSH_MERGE);
753 break;
69e9e427
JK		 754 case Opt_noflush_merge:
755 clear_opt(sbi, FLUSH_MERGE);
756 break;
0f7b2abd
JK		 757 case Opt_nobarrier:
758 set_opt(sbi, NOBARRIER);
759 break;
d5053a34
JK		 760 case Opt_fastboot:
761 set_opt(sbi, FASTBOOT);
762 break;
89672159
CY		 763 case Opt_extent_cache:
764 set_opt(sbi, EXTENT_CACHE);
765 break;
7daaea25
JK		 766 case Opt_noextent_cache:
767 clear_opt(sbi, EXTENT_CACHE);
768 break;
75342797
WL		 769 case Opt_noinline_data:
770 clear_opt(sbi, INLINE_DATA);
771 break;
343f40f0
CY		 772 case Opt_data_flush:
773 set_opt(sbi, DATA_FLUSH);
774 break;
7e65be49
JK		 775 case Opt_reserve_root:
776 if (args->from && match_int(args, &arg))
777 return -EINVAL;
778 if (test_opt(sbi, RESERVE_ROOT)) {
dcbb4c10
JP		 779 f2fs_info(sbi, "Preserve previous reserve_root=%u",
780 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 781 } else {
63189b78 782 F2FS_OPTION(sbi).root_reserved_blocks = arg;
7e65be49
JK		 783 set_opt(sbi, RESERVE_ROOT);
784 }
785 break;
7c2e5963
JK		 786 case Opt_resuid:
787 if (args->from && match_int(args, &arg))
788 return -EINVAL;
789 uid = make_kuid(current_user_ns(), arg);
790 if (!uid_valid(uid)) {
dcbb4c10 791 f2fs_err(sbi, "Invalid uid value %d", arg);
7c2e5963
JK		 792 return -EINVAL;
793 }
63189b78 794 F2FS_OPTION(sbi).s_resuid = uid;
7c2e5963
JK		 795 break;
796 case Opt_resgid:
797 if (args->from && match_int(args, &arg))
798 return -EINVAL;
799 gid = make_kgid(current_user_ns(), arg);
800 if (!gid_valid(gid)) {
dcbb4c10 801 f2fs_err(sbi, "Invalid gid value %d", arg);
7c2e5963
JK		 802 return -EINVAL;
803 }
63189b78 804 F2FS_OPTION(sbi).s_resgid = gid;
7c2e5963 805 break;
36abef4e
JK		 806 case Opt_mode:
807 name = match_strdup(&args[0]);
808
809 if (!name)
810 return -ENOMEM;
3c57f751 811 if (!strcmp(name, "adaptive")) {
7beb01f7 812 if (f2fs_sb_has_blkzoned(sbi)) {
dcbb4c10 813 f2fs_warn(sbi, "adaptive mode is not allowed with zoned block device feature");
ba87a45c 814 kfree(name);
3adc57e9
DLM		 815 return -EINVAL;
816 }
b0332a0f 817 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
3c57f751 818 } else if (!strcmp(name, "lfs")) {
b0332a0f 819 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
36abef4e 820 } else {
ba87a45c 821 kfree(name);
36abef4e
JK		 822 return -EINVAL;
823 }
ba87a45c 824 kfree(name);
36abef4e 825 break;
ec91538d
JK		 826 case Opt_io_size_bits:
827 if (args->from && match_int(args, &arg))
828 return -EINVAL;
a8affc03 829 if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_VECS)) {
dcbb4c10 830 f2fs_warn(sbi, "Not support %d, larger than %d",
a8affc03 831 1 << arg, BIO_MAX_VECS);
ec91538d
JK		 832 return -EINVAL;
833 }
63189b78 834 F2FS_OPTION(sbi).write_io_size_bits = arg;
ec91538d 835 break;
4cb037ec 836#ifdef CONFIG_F2FS_FAULT_INJECTION
73faec4d
JK		 837 case Opt_fault_injection:
838 if (args->from && match_int(args, &arg))
839 return -EINVAL;
d494500a
CY		 840 f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
841 set_opt(sbi, FAULT_INJECTION);
d494500a 842 break;
4cb037ec 843
d494500a
CY		 844 case Opt_fault_type:
845 if (args->from && match_int(args, &arg))
846 return -EINVAL;
d494500a 847 f2fs_build_fault_attr(sbi, 0, arg);
0cc0dec2 848 set_opt(sbi, FAULT_INJECTION);
4cb037ec 849 break;
73faec4d 850#else
4cb037ec 851 case Opt_fault_injection:
dcbb4c10 852 f2fs_info(sbi, "fault_injection options not supported");
73faec4d 853 break;
4cb037ec
CX		 854
855 case Opt_fault_type:
dcbb4c10 856 f2fs_info(sbi, "fault_type options not supported");
4cb037ec
CX		 857 break;
858#endif
6d94c74a 859 case Opt_lazytime:
1751e8a6 860 sb->s_flags |= SB_LAZYTIME;
6d94c74a
JK		 861 break;
862 case Opt_nolazytime:
1751e8a6 863 sb->s_flags &= ~SB_LAZYTIME;
6d94c74a 864 break;
0abd675e 865#ifdef CONFIG_QUOTA
4b2414d0 866 case Opt_quota:
0abd675e
CY		 867 case Opt_usrquota:
868 set_opt(sbi, USRQUOTA);
869 break;
870 case Opt_grpquota:
871 set_opt(sbi, GRPQUOTA);
872 break;
5c57132e
CY		 873 case Opt_prjquota:
874 set_opt(sbi, PRJQUOTA);
875 break;
4b2414d0
CY		 876 case Opt_usrjquota:
877 ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]);
878 if (ret)
879 return ret;
880 break;
881 case Opt_grpjquota:
882 ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]);
883 if (ret)
884 return ret;
885 break;
886 case Opt_prjjquota:
887 ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]);
888 if (ret)
889 return ret;
890 break;
891 case Opt_offusrjquota:
892 ret = f2fs_clear_qf_name(sb, USRQUOTA);
893 if (ret)
894 return ret;
895 break;
896 case Opt_offgrpjquota:
897 ret = f2fs_clear_qf_name(sb, GRPQUOTA);
898 if (ret)
899 return ret;
900 break;
901 case Opt_offprjjquota:
902 ret = f2fs_clear_qf_name(sb, PRJQUOTA);
903 if (ret)
904 return ret;
905 break;
906 case Opt_jqfmt_vfsold:
63189b78 907 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
4b2414d0
CY		 908 break;
909 case Opt_jqfmt_vfsv0:
63189b78 910 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
4b2414d0
CY		 911 break;
912 case Opt_jqfmt_vfsv1:
63189b78 913 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
4b2414d0
CY		 914 break;
915 case Opt_noquota:
916 clear_opt(sbi, QUOTA);
917 clear_opt(sbi, USRQUOTA);
918 clear_opt(sbi, GRPQUOTA);
919 clear_opt(sbi, PRJQUOTA);
920 break;
0abd675e 921#else
4b2414d0 922 case Opt_quota:
0abd675e
CY		 923 case Opt_usrquota:
924 case Opt_grpquota:
5c57132e 925 case Opt_prjquota:
4b2414d0
CY		 926 case Opt_usrjquota:
927 case Opt_grpjquota:
928 case Opt_prjjquota:
929 case Opt_offusrjquota:
930 case Opt_offgrpjquota:
931 case Opt_offprjjquota:
932 case Opt_jqfmt_vfsold:
933 case Opt_jqfmt_vfsv0:
934 case Opt_jqfmt_vfsv1:
935 case Opt_noquota:
dcbb4c10 936 f2fs_info(sbi, "quota operations not supported");
0abd675e
CY		 937 break;
938#endif
0cdd3195
HL		 939 case Opt_whint:
940 name = match_strdup(&args[0]);
941 if (!name)
942 return -ENOMEM;
3c57f751 943 if (!strcmp(name, "user-based")) {
63189b78 944 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER;
3c57f751 945 } else if (!strcmp(name, "off")) {
63189b78 946 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
3c57f751 947 } else if (!strcmp(name, "fs-based")) {
63189b78 948 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS;
0cdd3195 949 } else {
ba87a45c 950 kfree(name);
0cdd3195
HL		 951 return -EINVAL;
952 }
ba87a45c 953 kfree(name);
0cdd3195 954 break;
07939627
JK		 955 case Opt_alloc:
956 name = match_strdup(&args[0]);
957 if (!name)
958 return -ENOMEM;
959
3c57f751 960 if (!strcmp(name, "default")) {
63189b78 961 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
3c57f751 962 } else if (!strcmp(name, "reuse")) {
63189b78 963 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
07939627 964 } else {
ba87a45c 965 kfree(name);
07939627
JK		 966 return -EINVAL;
967 }
ba87a45c 968 kfree(name);
07939627 969 break;
93cf93f1
JZ		 970 case Opt_fsync:
971 name = match_strdup(&args[0]);
972 if (!name)
973 return -ENOMEM;
3c57f751 974 if (!strcmp(name, "posix")) {
63189b78 975 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
3c57f751 976 } else if (!strcmp(name, "strict")) {
63189b78 977 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
3c57f751 978 } else if (!strcmp(name, "nobarrier")) {
d6290814
JK		 979 F2FS_OPTION(sbi).fsync_mode =
980 FSYNC_MODE_NOBARRIER;
93cf93f1 981 } else {
ba87a45c 982 kfree(name);
93cf93f1
JZ		 983 return -EINVAL;
984 }
ba87a45c 985 kfree(name);
93cf93f1 986 break;
ff62af20 987 case Opt_test_dummy_encryption:
ed318a6c
EB		 988 ret = f2fs_set_test_dummy_encryption(sb, p, &args[0],
989 is_remount);
990 if (ret)
991 return ret;
ff62af20 992 break;
27aacd28
ST		 993 case Opt_inlinecrypt:
994#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
995 sb->s_flags |= SB_INLINECRYPT;
996#else
997 f2fs_info(sbi, "inline encryption not supported");
998#endif
999 break;
4d3aed70
DR		 1000 case Opt_checkpoint_disable_cap_perc:
1001 if (args->from && match_int(args, &arg))
4354994f 1002 return -EINVAL;
4d3aed70
DR		 1003 if (arg < 0 || arg > 100)
1004 return -EINVAL;
1ae18f71 1005 F2FS_OPTION(sbi).unusable_cap_perc = arg;
4d3aed70
DR		 1006 set_opt(sbi, DISABLE_CHECKPOINT);
1007 break;
1008 case Opt_checkpoint_disable_cap:
1009 if (args->from && match_int(args, &arg))
1010 return -EINVAL;
1011 F2FS_OPTION(sbi).unusable_cap = arg;
1012 set_opt(sbi, DISABLE_CHECKPOINT);
1013 break;
1014 case Opt_checkpoint_disable:
1015 set_opt(sbi, DISABLE_CHECKPOINT);
1016 break;
1017 case Opt_checkpoint_enable:
1018 clear_opt(sbi, DISABLE_CHECKPOINT);
4354994f 1019 break;
261eeb9c
DJ		 1020 case Opt_checkpoint_merge:
1021 set_opt(sbi, MERGE_CHECKPOINT);
1022 break;
1023 case Opt_nocheckpoint_merge:
1024 clear_opt(sbi, MERGE_CHECKPOINT);
1025 break;
1f0b067b 1026#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1027 case Opt_compress_algorithm:
1028 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1029 f2fs_info(sbi, "Image doesn't support compression");
1030 break;
4c8ff709
CY		 1031 }
1032 name = match_strdup(&args[0]);
1033 if (!name)
1034 return -ENOMEM;
3c57f751 1035 if (!strcmp(name, "lzo")) {
32be0e97 1036#ifdef CONFIG_F2FS_FS_LZO
3fde13f8 1037 F2FS_OPTION(sbi).compress_level = 0;
4c8ff709
CY		 1038 F2FS_OPTION(sbi).compress_algorithm =
1039 COMPRESS_LZO;
32be0e97
CY		 1040#else
1041 f2fs_info(sbi, "kernel doesn't support lzo compression");
1042#endif
3fde13f8 1043 } else if (!strncmp(name, "lz4", 3)) {
32be0e97 1044#ifdef CONFIG_F2FS_FS_LZ4
3fde13f8
CY		 1045 ret = f2fs_set_lz4hc_level(sbi, name);
1046 if (ret) {
1047 kfree(name);
1048 return -EINVAL;
1049 }
4c8ff709
CY		 1050 F2FS_OPTION(sbi).compress_algorithm =
1051 COMPRESS_LZ4;
32be0e97
CY		 1052#else
1053 f2fs_info(sbi, "kernel doesn't support lz4 compression");
1054#endif
3fde13f8 1055 } else if (!strncmp(name, "zstd", 4)) {
32be0e97 1056#ifdef CONFIG_F2FS_FS_ZSTD
3fde13f8
CY		 1057 ret = f2fs_set_zstd_level(sbi, name);
1058 if (ret) {
1059 kfree(name);
1060 return -EINVAL;
1061 }
50cfa66f
CY		 1062 F2FS_OPTION(sbi).compress_algorithm =
1063 COMPRESS_ZSTD;
32be0e97
CY		 1064#else
1065 f2fs_info(sbi, "kernel doesn't support zstd compression");
1066#endif
6d92b201 1067 } else if (!strcmp(name, "lzo-rle")) {
32be0e97 1068#ifdef CONFIG_F2FS_FS_LZORLE
3fde13f8 1069 F2FS_OPTION(sbi).compress_level = 0;
6d92b201
CY		 1070 F2FS_OPTION(sbi).compress_algorithm =
1071 COMPRESS_LZORLE;
32be0e97
CY		 1072#else
1073 f2fs_info(sbi, "kernel doesn't support lzorle compression");
1074#endif
4c8ff709
CY		 1075 } else {
1076 kfree(name);
1077 return -EINVAL;
1078 }
1079 kfree(name);
1080 break;
1081 case Opt_compress_log_size:
1082 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1083 f2fs_info(sbi, "Image doesn't support compression");
1084 break;
4c8ff709
CY		 1085 }
1086 if (args->from && match_int(args, &arg))
1087 return -EINVAL;
1088 if (arg < MIN_COMPRESS_LOG_SIZE ||
1089 arg > MAX_COMPRESS_LOG_SIZE) {
1090 f2fs_err(sbi,
1091 "Compress cluster log size is out of range");
1092 return -EINVAL;
1093 }
1094 F2FS_OPTION(sbi).compress_log_size = arg;
1095 break;
1096 case Opt_compress_extension:
1097 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1098 f2fs_info(sbi, "Image doesn't support compression");
1099 break;
4c8ff709
CY		 1100 }
1101 name = match_strdup(&args[0]);
1102 if (!name)
1103 return -ENOMEM;
1104
1105 ext = F2FS_OPTION(sbi).extensions;
1106 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
1107
1108 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1109 ext_cnt >= COMPRESS_EXT_NUM) {
1110 f2fs_err(sbi,
1111 "invalid extension length/number");
1112 kfree(name);
1113 return -EINVAL;
1114 }
1115
1116 strcpy(ext[ext_cnt], name);
1117 F2FS_OPTION(sbi).compress_ext_cnt++;
1118 kfree(name);
1119 break;
151b1982
FC		 1120 case Opt_nocompress_extension:
1121 if (!f2fs_sb_has_compression(sbi)) {
1122 f2fs_info(sbi, "Image doesn't support compression");
1123 break;
1124 }
1125 name = match_strdup(&args[0]);
1126 if (!name)
1127 return -ENOMEM;
1128
1129 noext = F2FS_OPTION(sbi).noextensions;
1130 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
1131
1132 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1133 noext_cnt >= COMPRESS_EXT_NUM) {
1134 f2fs_err(sbi,
1135 "invalid extension length/number");
1136 kfree(name);
1137 return -EINVAL;
1138 }
1139
1140 strcpy(noext[noext_cnt], name);
1141 F2FS_OPTION(sbi).nocompress_ext_cnt++;
1142 kfree(name);
1143 break;
b28f047b
CY		 1144 case Opt_compress_chksum:
1145 F2FS_OPTION(sbi).compress_chksum = true;
1146 break;
602a16d5
DJ		 1147 case Opt_compress_mode:
1148 name = match_strdup(&args[0]);
1149 if (!name)
1150 return -ENOMEM;
1151 if (!strcmp(name, "fs")) {
1152 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
1153 } else if (!strcmp(name, "user")) {
1154 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
1155 } else {
1156 kfree(name);
1157 return -EINVAL;
1158 }
1159 kfree(name);
1160 break;
6ce19aff
CY		 1161 case Opt_compress_cache:
1162 set_opt(sbi, COMPRESS_CACHE);
1163 break;
1f0b067b
CY		 1164#else
1165 case Opt_compress_algorithm:
1166 case Opt_compress_log_size:
1167 case Opt_compress_extension:
151b1982 1168 case Opt_nocompress_extension:
b28f047b 1169 case Opt_compress_chksum:
602a16d5 1170 case Opt_compress_mode:
6ce19aff 1171 case Opt_compress_cache:
1f0b067b
CY		 1172 f2fs_info(sbi, "compression options not supported");
1173 break;
1174#endif
093749e2
CY		 1175 case Opt_atgc:
1176 set_opt(sbi, ATGC);
1177 break;
5911d2d1
CY		 1178 case Opt_gc_merge:
1179 set_opt(sbi, GC_MERGE);
1180 break;
1181 case Opt_nogc_merge:
1182 clear_opt(sbi, GC_MERGE);
1183 break;
4f993264
CY		 1184 case Opt_discard_unit:
1185 name = match_strdup(&args[0]);
1186 if (!name)
1187 return -ENOMEM;
1188 if (!strcmp(name, "block")) {
1189 F2FS_OPTION(sbi).discard_unit =
1190 DISCARD_UNIT_BLOCK;
1191 } else if (!strcmp(name, "segment")) {
1192 F2FS_OPTION(sbi).discard_unit =
1193 DISCARD_UNIT_SEGMENT;
1194 } else if (!strcmp(name, "section")) {
1195 F2FS_OPTION(sbi).discard_unit =
1196 DISCARD_UNIT_SECTION;
1197 } else {
1198 kfree(name);
1199 return -EINVAL;
1200 }
1201 kfree(name);
1202 break;
696c018c 1203 default:
dcbb4c10
JP		 1204 f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
1205 p);
696c018c
NJ		 1206 return -EINVAL;
1207 }
1208 }
a7d9fe3c 1209default_check:
4b2414d0
CY		 1210#ifdef CONFIG_QUOTA
1211 if (f2fs_check_quota_options(sbi))
1212 return -EINVAL;
00960c2c 1213#else
7beb01f7 1214 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1215 f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
00960c2c
SY		 1216 return -EINVAL;
1217 }
7beb01f7 1218 if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1219 f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
4ddc1b28
CY		 1220 return -EINVAL;
1221 }
4b2414d0 1222#endif
5aba5430
DR		 1223#ifndef CONFIG_UNICODE
1224 if (f2fs_sb_has_casefold(sbi)) {
1225 f2fs_err(sbi,
1226 "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
1227 return -EINVAL;
1228 }
1229#endif
d0660122
CY		 1230 /*
1231 * The BLKZONED feature indicates that the drive was formatted with
1232 * zone alignment optimization. This is optional for host-aware
1233 * devices, but mandatory for host-managed zoned block devices.
1234 */
1235#ifndef CONFIG_BLK_DEV_ZONED
1236 if (f2fs_sb_has_blkzoned(sbi)) {
1237 f2fs_err(sbi, "Zoned block device support is not enabled");
1238 return -EINVAL;
1239 }
1240#endif
4f993264
CY		 1241 if (f2fs_sb_has_blkzoned(sbi)) {
1242 if (F2FS_OPTION(sbi).discard_unit !=
1243 DISCARD_UNIT_SECTION) {
1244 f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default");
1245 F2FS_OPTION(sbi).discard_unit =
1246 DISCARD_UNIT_SECTION;
1247 }
1248 }
ec91538d 1249
151b1982
FC		 1250#ifdef CONFIG_F2FS_FS_COMPRESSION
1251 if (f2fs_test_compress_extension(sbi)) {
1252 f2fs_err(sbi, "invalid compress or nocompress extension");
1253 return -EINVAL;
1254 }
1255#endif
1256
b0332a0f 1257 if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) {
dcbb4c10
JP		 1258 f2fs_err(sbi, "Should set mode=lfs with %uKB-sized IO",
1259 F2FS_IO_SIZE_KB(sbi));
ec91538d
JK		 1260 return -EINVAL;
1261 }
6afc662e
CY		 1262
1263 if (test_opt(sbi, INLINE_XATTR_SIZE)) {
70db5b04
JK		 1264 int min_size, max_size;
1265
7beb01f7
CY		 1266 if (!f2fs_sb_has_extra_attr(sbi) ||
1267 !f2fs_sb_has_flexible_inline_xattr(sbi)) {
dcbb4c10 1268 f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
4d817ae0
CY		 1269 return -EINVAL;
1270 }
6afc662e 1271 if (!test_opt(sbi, INLINE_XATTR)) {
dcbb4c10 1272 f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
6afc662e
CY		 1273 return -EINVAL;
1274 }
70db5b04
JK		 1275
1276 min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32);
dd6c89b5 1277 max_size = MAX_INLINE_XATTR_SIZE;
70db5b04
JK		 1278
1279 if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
1280 F2FS_OPTION(sbi).inline_xattr_size > max_size) {
dcbb4c10
JP		 1281 f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
1282 min_size, max_size);
6afc662e
CY		 1283 return -EINVAL;
1284 }
1285 }
0cdd3195 1286
b0332a0f 1287 if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) {
833dcd35 1288 f2fs_err(sbi, "LFS not compatible with checkpoint=disable");
4354994f
DR		 1289 return -EINVAL;
1290 }
1291
0cdd3195 1292 /* Not pass down write hints if the number of active logs is lesser
d0b9e42a 1293 * than NR_CURSEG_PERSIST_TYPE.
0cdd3195 1294 */
63189b78
CY		 1295 if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE)
1296 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
a7d9fe3c
JK		 1297
1298 if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
1299 f2fs_err(sbi, "Allow to mount readonly mode only");
1300 return -EROFS;
1301 }
696c018c
NJ		 1302 return 0;
1303}
1304
aff063e2
JK		 1305static struct inode *f2fs_alloc_inode(struct super_block *sb)
1306{
1307 struct f2fs_inode_info *fi;
1308
32410577
CY		 1309 fi = f2fs_kmem_cache_alloc(f2fs_inode_cachep,
1310 GFP_F2FS_ZERO, false, F2FS_SB(sb));
aff063e2
JK		 1311 if (!fi)
1312 return NULL;
1313
1314 init_once((void *) fi);
1315
434720fa 1316 /* Initialize f2fs-specific inode info */
204706c7 1317 atomic_set(&fi->dirty_pages, 0);
c2759eba 1318 atomic_set(&fi->i_compr_blocks, 0);
d928bfbf 1319 init_rwsem(&fi->i_sem);
c10c9820 1320 spin_lock_init(&fi->i_size_lock);
2710fd7e 1321 INIT_LIST_HEAD(&fi->dirty_list);
0f18b462 1322 INIT_LIST_HEAD(&fi->gdirty_list);
57864ae5 1323 INIT_LIST_HEAD(&fi->inmem_ilist);
88b88a66
JK		 1324 INIT_LIST_HEAD(&fi->inmem_pages);
1325 mutex_init(&fi->inmem_lock);
b2532c69
CY		 1326 init_rwsem(&fi->i_gc_rwsem[READ]);
1327 init_rwsem(&fi->i_gc_rwsem[WRITE]);
27161f13 1328 init_rwsem(&fi->i_xattr_sem);
aff063e2 1329
ab9fa662
JK		 1330 /* Will be used by directory only */
1331 fi->i_dir_level = F2FS_SB(sb)->dir_level;
f2470371 1332
aff063e2
JK		 1333 return &fi->vfs_inode;
1334}
1335
531ad7d5
JK		 1336static int f2fs_drop_inode(struct inode *inode)
1337{
a8933b6b 1338 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
b8d96a30 1339 int ret;
a8933b6b
CY		 1340
1341 /*
1342 * during filesystem shutdown, if checkpoint is disabled,
1343 * drop useless meta/node dirty pages.
1344 */
1345 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1346 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1347 inode->i_ino == F2FS_META_INO(sbi)) {
1348 trace_f2fs_drop_inode(inode, 1);
1349 return 1;
1350 }
1351 }
1352
531ad7d5
JK		 1353 /*
1354 * This is to avoid a deadlock condition like below.
1355 * writeback_single_inode(inode)
1356 * - f2fs_write_data_page
1357 * - f2fs_gc -> iput -> evict
1358 * - inode_wait_for_writeback(inode)
1359 */
0f18b462 1360 if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) {
06e1bc05 1361 if (!inode->i_nlink && !is_bad_inode(inode)) {
3e72f721
JK		 1362 /* to avoid evict_inode call simultaneously */
1363 atomic_inc(&inode->i_count);
06e1bc05
JK		 1364 spin_unlock(&inode->i_lock);
1365
1366 /* some remained atomic pages should discarded */
1367 if (f2fs_is_atomic_file(inode))
4d57b86d 1368 f2fs_drop_inmem_pages(inode);
06e1bc05 1369
3e72f721
JK		 1370 /* should remain fi->extent_tree for writepage */
1371 f2fs_destroy_extent_node(inode);
1372
06e1bc05 1373 sb_start_intwrite(inode->i_sb);
fc9581c8 1374 f2fs_i_size_write(inode, 0);
06e1bc05 1375
a0770e13 1376 f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
1377 inode, NULL, 0, DATA);
1378 truncate_inode_pages_final(inode->i_mapping);
1379
06e1bc05 1380 if (F2FS_HAS_BLOCKS(inode))
9a449e9c 1381 f2fs_truncate(inode);
06e1bc05
JK		 1382
1383 sb_end_intwrite(inode->i_sb);
1384
06e1bc05 1385 spin_lock(&inode->i_lock);
3e72f721 1386 atomic_dec(&inode->i_count);
06e1bc05 1387 }
b8d96a30 1388 trace_f2fs_drop_inode(inode, 0);
531ad7d5 1389 return 0;
06e1bc05 1390 }
b8d96a30 1391 ret = generic_drop_inode(inode);
8ce589c7
EB		 1392 if (!ret)
1393 ret = fscrypt_drop_inode(inode);
b8d96a30
HP		 1394 trace_f2fs_drop_inode(inode, ret);
1395 return ret;
531ad7d5
JK		 1396}
1397
7c45729a 1398int f2fs_inode_dirtied(struct inode *inode, bool sync)
b3783873 1399{
0f18b462 1400 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7c45729a 1401 int ret = 0;
0f18b462 1402
0f18b462
JK		 1403 spin_lock(&sbi->inode_lock[DIRTY_META]);
1404 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
7c45729a
JK		 1405 ret = 1;
1406 } else {
1407 set_inode_flag(inode, FI_DIRTY_INODE);
1408 stat_inc_dirty_inode(sbi, DIRTY_META);
0f18b462 1409 }
7c45729a
JK		 1410 if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) {
1411 list_add_tail(&F2FS_I(inode)->gdirty_list,
0f18b462 1412 &sbi->inode_list[DIRTY_META]);
7c45729a
JK		 1413 inc_page_count(sbi, F2FS_DIRTY_IMETA);
1414 }
338bbfa0 1415 spin_unlock(&sbi->inode_lock[DIRTY_META]);
7c45729a 1416 return ret;
0f18b462
JK		 1417}
1418
1419void f2fs_inode_synced(struct inode *inode)
1420{
1421 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1422
1423 spin_lock(&sbi->inode_lock[DIRTY_META]);
1424 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) {
1425 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1426 return;
1427 }
7c45729a
JK		 1428 if (!list_empty(&F2FS_I(inode)->gdirty_list)) {
1429 list_del_init(&F2FS_I(inode)->gdirty_list);
1430 dec_page_count(sbi, F2FS_DIRTY_IMETA);
1431 }
0f18b462 1432 clear_inode_flag(inode, FI_DIRTY_INODE);
26de9b11 1433 clear_inode_flag(inode, FI_AUTO_RECOVER);
0f18b462 1434 stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META);
338bbfa0 1435 spin_unlock(&sbi->inode_lock[DIRTY_META]);
b3783873
JK		 1436}
1437
b56ab837
JK		 1438/*
1439 * f2fs_dirty_inode() is called from __mark_inode_dirty()
1440 *
1441 * We should call set_dirty_inode to write the dirty inode through write_inode.
1442 */
1443static void f2fs_dirty_inode(struct inode *inode, int flags)
1444{
1445 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1446
1447 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1448 inode->i_ino == F2FS_META_INO(sbi))
1449 return;
1450
b56ab837
JK		 1451 if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
1452 clear_inode_flag(inode, FI_AUTO_RECOVER);
1453
7c45729a 1454 f2fs_inode_dirtied(inode, false);
b56ab837
JK		 1455}
1456
d01718a0 1457static void f2fs_free_inode(struct inode *inode)
aff063e2 1458{
2c58d548 1459 fscrypt_free_inode(inode);
aff063e2
JK		 1460 kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
1461}
1462
523be8a6
JK		 1463static void destroy_percpu_info(struct f2fs_sb_info *sbi)
1464{
41382ec4 1465 percpu_counter_destroy(&sbi->alloc_valid_block_count);
513c5f37 1466 percpu_counter_destroy(&sbi->total_valid_inode_count);
523be8a6
JK		 1467}
1468
3c62be17
JK		 1469static void destroy_device_list(struct f2fs_sb_info *sbi)
1470{
1471 int i;
1472
1473 for (i = 0; i < sbi->s_ndevs; i++) {
1474 blkdev_put(FDEV(i).bdev, FMODE_EXCL);
1475#ifdef CONFIG_BLK_DEV_ZONED
95175daf 1476 kvfree(FDEV(i).blkz_seq);
de881df9 1477 kfree(FDEV(i).zone_capacity_blocks);
3c62be17
JK		 1478#endif
1479 }
5222595d 1480 kvfree(sbi->devs);
3c62be17
JK		 1481}
1482
aff063e2
JK		 1483static void f2fs_put_super(struct super_block *sb)
1484{
1485 struct f2fs_sb_info *sbi = F2FS_SB(sb);
a398101a 1486 int i;
cf5c759f 1487 bool dropped;
aff063e2 1488
99c787cf
LG		 1489 /* unregister procfs/sysfs entries in advance to avoid race case */
1490 f2fs_unregister_sysfs(sbi);
1491
0abd675e 1492 f2fs_quota_off_umount(sb);
aff063e2 1493
2658e50d
JK		 1494 /* prevent remaining shrinker jobs */
1495 mutex_lock(&sbi->umount_mutex);
1496
261eeb9c
DJ		 1497 /*
1498 * flush all issued checkpoints and stop checkpoint issue thread.
1499 * after then, all checkpoints should be done by each process context.
1500 */
1501 f2fs_stop_ckpt_thread(sbi);
1502
85dc2f2c
JK		 1503 /*
1504 * We don't need to do checkpoint when superblock is clean.
1505 * But, the previous checkpoint was not done by umount, it needs to do
1506 * clean checkpoint again.
1507 */
4354994f
DR		 1508 if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
1509 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
75ab4cb8
JK		 1510 struct cp_control cpc = {
1511 .reason = CP_UMOUNT,
1512 };
4d57b86d 1513 f2fs_write_checkpoint(sbi, &cpc);
75ab4cb8 1514 }
aff063e2 1515
4e6a8d9b 1516 /* be sure to wait for any on-going discard commands */
03f2c02d 1517 dropped = f2fs_issue_discard_timeout(sbi);
4e6a8d9b 1518
7d20c8ab
CY		 1519 if ((f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) &&
1520 !sbi->discard_blks && !dropped) {
1f43e2ad
CY		 1521 struct cp_control cpc = {
1522 .reason = CP_UMOUNT | CP_TRIMMED,
1523 };
4d57b86d 1524 f2fs_write_checkpoint(sbi, &cpc);
1f43e2ad
CY		 1525 }
1526
cf779cab
JK		 1527 /*
1528 * normally superblock is clean, so we need to release this.
1529 * In addition, EIO will skip do checkpoint, we need this as well.
1530 */
4d57b86d 1531 f2fs_release_ino_entry(sbi, true);
6f12ac25 1532
2658e50d
JK		 1533 f2fs_leave_shrinker(sbi);
1534 mutex_unlock(&sbi->umount_mutex);
1535
17c19120 1536 /* our cp_error case, we can wait for any writeback page */
b9109b0e 1537 f2fs_flush_merged_writes(sbi);
17c19120 1538
bf22c3cc 1539 f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
50fa53ec
CY		 1540
1541 f2fs_bug_on(sbi, sbi->fsync_node_num);
1542
6ce19aff
CY		 1543 f2fs_destroy_compress_inode(sbi);
1544
aff063e2 1545 iput(sbi->node_inode);
7c77bf7d
JK		 1546 sbi->node_inode = NULL;
1547
aff063e2 1548 iput(sbi->meta_inode);
7c77bf7d 1549 sbi->meta_inode = NULL;
aff063e2 1550
60aa4d55
ST		 1551 /*
1552 * iput() can update stat information, if f2fs_write_checkpoint()
1553 * above failed with error.
1554 */
1555 f2fs_destroy_stats(sbi);
1556
aff063e2 1557 /* destroy f2fs internal modules */
4d57b86d
CY		 1558 f2fs_destroy_node_manager(sbi);
1559 f2fs_destroy_segment_manager(sbi);
aff063e2 1560
4c8ff709
CY		 1561 f2fs_destroy_post_read_wq(sbi);
1562
5222595d 1563 kvfree(sbi->ckpt);
a398101a 1564
aff063e2 1565 sb->s_fs_info = NULL;
43b6573b
KM		 1566 if (sbi->s_chksum_driver)
1567 crypto_free_shash(sbi->s_chksum_driver);
742532d1 1568 kfree(sbi->raw_super);
523be8a6 1569
3c62be17 1570 destroy_device_list(sbi);
31083031 1571 f2fs_destroy_page_array_cache(sbi);
a999150f 1572 f2fs_destroy_xattr_caches(sbi);
b6895e8f 1573 mempool_destroy(sbi->write_io_dummy);
4b2414d0
CY		 1574#ifdef CONFIG_QUOTA
1575 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 1576 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 1577#endif
ac4acb1f 1578 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
523be8a6 1579 destroy_percpu_info(sbi);
a4b68176 1580 f2fs_destroy_iostat(sbi);
a912b54d 1581 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 1582 kvfree(sbi->write_io[i]);
5aba5430 1583#ifdef CONFIG_UNICODE
eca4873e 1584 utf8_unload(sb->s_encoding);
5aba5430 1585#endif
742532d1 1586 kfree(sbi);
aff063e2
JK		 1587}
1588
1589int f2fs_sync_fs(struct super_block *sb, int sync)
1590{
1591 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c34f42e2 1592 int err = 0;
aff063e2 1593
1f227a3e
JK		 1594 if (unlikely(f2fs_cp_error(sbi)))
1595 return 0;
4354994f
DR		 1596 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1597 return 0;
1f227a3e 1598
a2a4a7e4
NJ		 1599 trace_f2fs_sync_fs(sb, sync);
1600
4b2414d0
CY		 1601 if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
1602 return -EAGAIN;
1603
261eeb9c
DJ		 1604 if (sync)
1605 err = f2fs_issue_checkpoint(sbi);
119ee914 1606
c34f42e2 1607 return err;
aff063e2
JK		 1608}
1609
d6212a5f
CL		 1610static int f2fs_freeze(struct super_block *sb)
1611{
77888c1e 1612 if (f2fs_readonly(sb))
d6212a5f
CL		 1613 return 0;
1614
b4b9d34c
JK		 1615 /* IO error happened before */
1616 if (unlikely(f2fs_cp_error(F2FS_SB(sb))))
1617 return -EIO;
1618
1619 /* must be clean, since sync_filesystem() was already called */
1620 if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
1621 return -EINVAL;
d50dfc0c
JK		 1622
1623 /* ensure no checkpoint required */
1624 if (!llist_empty(&F2FS_SB(sb)->cprc_info.issue_list))
1625 return -EINVAL;
b4b9d34c 1626 return 0;
d6212a5f
CL		 1627}
1628
1629static int f2fs_unfreeze(struct super_block *sb)
1630{
1631 return 0;
1632}
1633
ddc34e32
CY		 1634#ifdef CONFIG_QUOTA
1635static int f2fs_statfs_project(struct super_block *sb,
1636 kprojid_t projid, struct kstatfs *buf)
1637{
1638 struct kqid qid;
1639 struct dquot *dquot;
1640 u64 limit;
1641 u64 curblock;
1642
1643 qid = make_kqid_projid(projid);
1644 dquot = dqget(sb, qid);
1645 if (IS_ERR(dquot))
1646 return PTR_ERR(dquot);
955ac6e5 1647 spin_lock(&dquot->dq_dqb_lock);
ddc34e32 1648
bf2cbd3c
CX		 1649 limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit,
1650 dquot->dq_dqb.dqb_bhardlimit);
acdf2172
CX		 1651 if (limit)
1652 limit >>= sb->s_blocksize_bits;
909110c0 1653
ddc34e32 1654 if (limit && buf->f_blocks > limit) {
baaa7ebf
KK		 1655 curblock = (dquot->dq_dqb.dqb_curspace +
1656 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
ddc34e32
CY		 1657 buf->f_blocks = limit;
1658 buf->f_bfree = buf->f_bavail =
1659 (buf->f_blocks > curblock) ?
1660 (buf->f_blocks - curblock) : 0;
1661 }
1662
bf2cbd3c
CX		 1663 limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit,
1664 dquot->dq_dqb.dqb_ihardlimit);
909110c0 1665
ddc34e32
CY		 1666 if (limit && buf->f_files > limit) {
1667 buf->f_files = limit;
1668 buf->f_ffree =
1669 (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
1670 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
1671 }
1672
955ac6e5 1673 spin_unlock(&dquot->dq_dqb_lock);
ddc34e32
CY		 1674 dqput(dquot);
1675 return 0;
1676}
1677#endif
1678
aff063e2
JK		 1679static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
1680{
1681 struct super_block *sb = dentry->d_sb;
1682 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1683 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
f66c027e 1684 block_t total_count, user_block_count, start_count;
0cc091d0 1685 u64 avail_node_count;
aff063e2
JK		 1686
1687 total_count = le64_to_cpu(sbi->raw_super->block_count);
1688 user_block_count = sbi->user_block_count;
1689 start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
aff063e2
JK		 1690 buf->f_type = F2FS_SUPER_MAGIC;
1691 buf->f_bsize = sbi->blocksize;
1692
1693 buf->f_blocks = total_count - start_count;
f66c027e 1694 buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
80d42145 1695 sbi->current_reserved_blocks;
c9c8ed50
CY		 1696
1697 spin_lock(&sbi->stat_lock);
4354994f
DR		 1698 if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
1699 buf->f_bfree = 0;
1700 else
1701 buf->f_bfree -= sbi->unusable_block_count;
c9c8ed50 1702 spin_unlock(&sbi->stat_lock);
4354994f 1703
63189b78
CY		 1704 if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
1705 buf->f_bavail = buf->f_bfree -
1706 F2FS_OPTION(sbi).root_reserved_blocks;
7e65be49
JK		 1707 else
1708 buf->f_bavail = 0;
aff063e2 1709
27cae0bc 1710 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
0cc091d0
JK		 1711
1712 if (avail_node_count > user_block_count) {
1713 buf->f_files = user_block_count;
1714 buf->f_ffree = buf->f_bavail;
1715 } else {
1716 buf->f_files = avail_node_count;
1717 buf->f_ffree = min(avail_node_count - valid_node_count(sbi),
1718 buf->f_bavail);
1719 }
aff063e2 1720
5a20d339 1721 buf->f_namelen = F2FS_NAME_LEN;
6d1349c7 1722 buf->f_fsid = u64_to_fsid(id);
aff063e2 1723
ddc34e32
CY		 1724#ifdef CONFIG_QUOTA
1725 if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) &&
1726 sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
1727 f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf);
1728 }
1729#endif
aff063e2
JK		 1730 return 0;
1731}
1732
4b2414d0
CY		 1733static inline void f2fs_show_quota_options(struct seq_file *seq,
1734 struct super_block *sb)
1735{
1736#ifdef CONFIG_QUOTA
1737 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1738
63189b78 1739 if (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1740 char *fmtname = "";
1741
63189b78 1742 switch (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1743 case QFMT_VFS_OLD:
1744 fmtname = "vfsold";
1745 break;
1746 case QFMT_VFS_V0:
1747 fmtname = "vfsv0";
1748 break;
1749 case QFMT_VFS_V1:
1750 fmtname = "vfsv1";
1751 break;
1752 }
1753 seq_printf(seq, ",jqfmt=%s", fmtname);
1754 }
1755
63189b78
CY		 1756 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
1757 seq_show_option(seq, "usrjquota",
1758 F2FS_OPTION(sbi).s_qf_names[USRQUOTA]);
4b2414d0 1759
63189b78
CY		 1760 if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
1761 seq_show_option(seq, "grpjquota",
1762 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]);
4b2414d0 1763
63189b78
CY		 1764 if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
1765 seq_show_option(seq, "prjjquota",
1766 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]);
4b2414d0
CY		 1767#endif
1768}
1769
cd6ee739 1770#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1771static inline void f2fs_show_compress_options(struct seq_file *seq,
1772 struct super_block *sb)
1773{
1774 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1775 char *algtype = "";
1776 int i;
1777
1778 if (!f2fs_sb_has_compression(sbi))
1779 return;
1780
1781 switch (F2FS_OPTION(sbi).compress_algorithm) {
1782 case COMPRESS_LZO:
1783 algtype = "lzo";
1784 break;
1785 case COMPRESS_LZ4:
1786 algtype = "lz4";
1787 break;
50cfa66f
CY		 1788 case COMPRESS_ZSTD:
1789 algtype = "zstd";
1790 break;
6d92b201
CY		 1791 case COMPRESS_LZORLE:
1792 algtype = "lzo-rle";
1793 break;
4c8ff709
CY		 1794 }
1795 seq_printf(seq, ",compress_algorithm=%s", algtype);
1796
3fde13f8
CY		 1797 if (F2FS_OPTION(sbi).compress_level)
1798 seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level);
1799
4c8ff709
CY		 1800 seq_printf(seq, ",compress_log_size=%u",
1801 F2FS_OPTION(sbi).compress_log_size);
1802
1803 for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
1804 seq_printf(seq, ",compress_extension=%s",
1805 F2FS_OPTION(sbi).extensions[i]);
1806 }
b28f047b 1807
151b1982
FC		 1808 for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) {
1809 seq_printf(seq, ",nocompress_extension=%s",
1810 F2FS_OPTION(sbi).noextensions[i]);
1811 }
1812
b28f047b
CY		 1813 if (F2FS_OPTION(sbi).compress_chksum)
1814 seq_puts(seq, ",compress_chksum");
602a16d5
DJ		 1815
1816 if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS)
1817 seq_printf(seq, ",compress_mode=%s", "fs");
1818 else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
1819 seq_printf(seq, ",compress_mode=%s", "user");
6ce19aff
CY		 1820
1821 if (test_opt(sbi, COMPRESS_CACHE))
1822 seq_puts(seq, ",compress_cache");
4c8ff709 1823}
cd6ee739 1824#endif
4c8ff709 1825
aff063e2
JK		 1826static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
1827{
1828 struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
1829
bbbc34fd
CY		 1830 if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
1831 seq_printf(seq, ",background_gc=%s", "sync");
1832 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
1833 seq_printf(seq, ",background_gc=%s", "on");
1834 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
696c018c 1835 seq_printf(seq, ",background_gc=%s", "off");
bbbc34fd 1836
5911d2d1
CY		 1837 if (test_opt(sbi, GC_MERGE))
1838 seq_puts(seq, ",gc_merge");
1839
aff063e2
JK		 1840 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
1841 seq_puts(seq, ",disable_roll_forward");
a9117eca
CY		 1842 if (test_opt(sbi, NORECOVERY))
1843 seq_puts(seq, ",norecovery");
aff063e2
JK		 1844 if (test_opt(sbi, DISCARD))
1845 seq_puts(seq, ",discard");
81621f97
ST		 1846 else
1847 seq_puts(seq, ",nodiscard");
aff063e2 1848 if (test_opt(sbi, NOHEAP))
7a20b8a6
JK		 1849 seq_puts(seq, ",no_heap");
1850 else
1851 seq_puts(seq, ",heap");
aff063e2
JK		 1852#ifdef CONFIG_F2FS_FS_XATTR
1853 if (test_opt(sbi, XATTR_USER))
1854 seq_puts(seq, ",user_xattr");
1855 else
1856 seq_puts(seq, ",nouser_xattr");
444c580f
JK		 1857 if (test_opt(sbi, INLINE_XATTR))
1858 seq_puts(seq, ",inline_xattr");
23cf7212
CY		 1859 else
1860 seq_puts(seq, ",noinline_xattr");
6afc662e
CY		 1861 if (test_opt(sbi, INLINE_XATTR_SIZE))
1862 seq_printf(seq, ",inline_xattr_size=%u",
63189b78 1863 F2FS_OPTION(sbi).inline_xattr_size);
aff063e2
JK		 1864#endif
1865#ifdef CONFIG_F2FS_FS_POSIX_ACL
1866 if (test_opt(sbi, POSIX_ACL))
1867 seq_puts(seq, ",acl");
1868 else
1869 seq_puts(seq, ",noacl");
1870#endif
1871 if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
aa43507f 1872 seq_puts(seq, ",disable_ext_identify");
8274de77
HL		 1873 if (test_opt(sbi, INLINE_DATA))
1874 seq_puts(seq, ",inline_data");
75342797
WL		 1875 else
1876 seq_puts(seq, ",noinline_data");
5efd3c6f
CY		 1877 if (test_opt(sbi, INLINE_DENTRY))
1878 seq_puts(seq, ",inline_dentry");
97c1794a
CY		 1879 else
1880 seq_puts(seq, ",noinline_dentry");
b270ad6f 1881 if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE))
6b4afdd7 1882 seq_puts(seq, ",flush_merge");
0f7b2abd
JK		 1883 if (test_opt(sbi, NOBARRIER))
1884 seq_puts(seq, ",nobarrier");
d5053a34
JK		 1885 if (test_opt(sbi, FASTBOOT))
1886 seq_puts(seq, ",fastboot");
89672159
CY		 1887 if (test_opt(sbi, EXTENT_CACHE))
1888 seq_puts(seq, ",extent_cache");
7daaea25
JK		 1889 else
1890 seq_puts(seq, ",noextent_cache");
343f40f0
CY		 1891 if (test_opt(sbi, DATA_FLUSH))
1892 seq_puts(seq, ",data_flush");
36abef4e
JK		 1893
1894 seq_puts(seq, ",mode=");
b0332a0f 1895 if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
36abef4e 1896 seq_puts(seq, "adaptive");
b0332a0f 1897 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
36abef4e 1898 seq_puts(seq, "lfs");
63189b78 1899 seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
7e65be49 1900 if (test_opt(sbi, RESERVE_ROOT))
7c2e5963 1901 seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
63189b78
CY		 1902 F2FS_OPTION(sbi).root_reserved_blocks,
1903 from_kuid_munged(&init_user_ns,
1904 F2FS_OPTION(sbi).s_resuid),
1905 from_kgid_munged(&init_user_ns,
1906 F2FS_OPTION(sbi).s_resgid));
ec91538d 1907 if (F2FS_IO_SIZE_BITS(sbi))
c6b1867b
CX		 1908 seq_printf(seq, ",io_bits=%u",
1909 F2FS_OPTION(sbi).write_io_size_bits);
0cc0dec2 1910#ifdef CONFIG_F2FS_FAULT_INJECTION
d494500a 1911 if (test_opt(sbi, FAULT_INJECTION)) {
44529f89 1912 seq_printf(seq, ",fault_injection=%u",
63189b78 1913 F2FS_OPTION(sbi).fault_info.inject_rate);
d494500a
CY		 1914 seq_printf(seq, ",fault_type=%u",
1915 F2FS_OPTION(sbi).fault_info.inject_type);
1916 }
0cc0dec2 1917#endif
0abd675e 1918#ifdef CONFIG_QUOTA
4b2414d0
CY		 1919 if (test_opt(sbi, QUOTA))
1920 seq_puts(seq, ",quota");
0abd675e
CY		 1921 if (test_opt(sbi, USRQUOTA))
1922 seq_puts(seq, ",usrquota");
1923 if (test_opt(sbi, GRPQUOTA))
1924 seq_puts(seq, ",grpquota");
5c57132e
CY		 1925 if (test_opt(sbi, PRJQUOTA))
1926 seq_puts(seq, ",prjquota");
0cc0dec2 1927#endif
4b2414d0 1928 f2fs_show_quota_options(seq, sbi->sb);
63189b78 1929 if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER)
0cdd3195 1930 seq_printf(seq, ",whint_mode=%s", "user-based");
63189b78 1931 else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS)
f2e703f9 1932 seq_printf(seq, ",whint_mode=%s", "fs-based");
ed318a6c
EB		 1933
1934 fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb);
aff063e2 1935
27aacd28
ST		 1936 if (sbi->sb->s_flags & SB_INLINECRYPT)
1937 seq_puts(seq, ",inlinecrypt");
1938
63189b78 1939 if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
07939627 1940 seq_printf(seq, ",alloc_mode=%s", "default");
63189b78 1941 else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
07939627 1942 seq_printf(seq, ",alloc_mode=%s", "reuse");
93cf93f1 1943
4354994f 1944 if (test_opt(sbi, DISABLE_CHECKPOINT))
4d3aed70
DR		 1945 seq_printf(seq, ",checkpoint=disable:%u",
1946 F2FS_OPTION(sbi).unusable_cap);
261eeb9c
DJ		 1947 if (test_opt(sbi, MERGE_CHECKPOINT))
1948 seq_puts(seq, ",checkpoint_merge");
1949 else
1950 seq_puts(seq, ",nocheckpoint_merge");
63189b78 1951 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
93cf93f1 1952 seq_printf(seq, ",fsync_mode=%s", "posix");
63189b78 1953 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
93cf93f1 1954 seq_printf(seq, ",fsync_mode=%s", "strict");
dc132802
ST		 1955 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
1956 seq_printf(seq, ",fsync_mode=%s", "nobarrier");
4c8ff709 1957
1f0b067b 1958#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 1959 f2fs_show_compress_options(seq, sbi->sb);
1f0b067b 1960#endif
093749e2
CY		 1961
1962 if (test_opt(sbi, ATGC))
1963 seq_puts(seq, ",atgc");
4f993264
CY		 1964
1965 if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK)
1966 seq_printf(seq, ",discard_unit=%s", "block");
1967 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
1968 seq_printf(seq, ",discard_unit=%s", "segment");
1969 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
1970 seq_printf(seq, ",discard_unit=%s", "section");
1971
aff063e2
JK		 1972 return 0;
1973}
1974
498c5e9f
YH		 1975static void default_options(struct f2fs_sb_info *sbi)
1976{
1977 /* init some FS parameters */
a7d9fe3c
JK		 1978 if (f2fs_sb_has_readonly(sbi))
1979 F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE;
1980 else
1981 F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;
1982
63189b78
CY		 1983 F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
1984 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
1985 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
1986 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
0aa7e0f8
CY		 1987 F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
1988 F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
91faa534 1989 F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
4c8ff709
CY		 1990 F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
1991 F2FS_OPTION(sbi).compress_ext_cnt = 0;
602a16d5 1992 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
bbbc34fd 1993 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
498c5e9f 1994
27aacd28
ST		 1995 sbi->sb->s_flags &= ~SB_INLINECRYPT;
1996
39133a50 1997 set_opt(sbi, INLINE_XATTR);
498c5e9f 1998 set_opt(sbi, INLINE_DATA);
97c1794a 1999 set_opt(sbi, INLINE_DENTRY);
3e72f721 2000 set_opt(sbi, EXTENT_CACHE);
7a20b8a6 2001 set_opt(sbi, NOHEAP);
4354994f 2002 clear_opt(sbi, DISABLE_CHECKPOINT);
b5d15199 2003 set_opt(sbi, MERGE_CHECKPOINT);
4d3aed70 2004 F2FS_OPTION(sbi).unusable_cap = 0;
1751e8a6 2005 sbi->sb->s_flags |= SB_LAZYTIME;
69e9e427 2006 set_opt(sbi, FLUSH_MERGE);
f7db8dd6
CY		 2007 if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
2008 set_opt(sbi, DISCARD);
4f993264 2009 if (f2fs_sb_has_blkzoned(sbi)) {
b0332a0f 2010 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
4f993264
CY		 2011 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
2012 } else {
b0332a0f 2013 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
4f993264
CY		 2014 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
2015 }
498c5e9f
YH		 2016
2017#ifdef CONFIG_F2FS_FS_XATTR
2018 set_opt(sbi, XATTR_USER);
2019#endif
2020#ifdef CONFIG_F2FS_FS_POSIX_ACL
2021 set_opt(sbi, POSIX_ACL);
2022#endif
36dbd328 2023
d494500a 2024 f2fs_build_fault_attr(sbi, 0, 0);
498c5e9f
YH		 2025}
2026
ea676733
JK		 2027#ifdef CONFIG_QUOTA
2028static int f2fs_enable_quotas(struct super_block *sb);
2029#endif
4354994f
DR		 2030
2031static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
2032{
812a9597 2033 unsigned int s_flags = sbi->sb->s_flags;
4354994f 2034 struct cp_control cpc;
812a9597
JK		 2035 int err = 0;
2036 int ret;
4d3aed70 2037 block_t unusable;
4354994f 2038
812a9597 2039 if (s_flags & SB_RDONLY) {
dcbb4c10 2040 f2fs_err(sbi, "checkpoint=disable on readonly fs");
812a9597
JK		 2041 return -EINVAL;
2042 }
4354994f
DR		 2043 sbi->sb->s_flags |= SB_ACTIVE;
2044
4354994f
DR		 2045 f2fs_update_time(sbi, DISABLE_TIME);
2046
2047 while (!f2fs_time_over(sbi, DISABLE_TIME)) {
fb24fea7 2048 down_write(&sbi->gc_lock);
7dede886 2049 err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
812a9597
JK		 2050 if (err == -ENODATA) {
2051 err = 0;
4354994f 2052 break;
812a9597 2053 }
8f31b466 2054 if (err && err != -EAGAIN)
812a9597 2055 break;
4354994f 2056 }
4354994f 2057
812a9597
JK		 2058 ret = sync_filesystem(sbi->sb);
2059 if (ret || err) {
5f029c04 2060 err = ret ? ret : err;
812a9597
JK		 2061 goto restore_flag;
2062 }
4354994f 2063
4d3aed70
DR		 2064 unusable = f2fs_get_unusable_blocks(sbi);
2065 if (f2fs_disable_cp_again(sbi, unusable)) {
812a9597
JK		 2066 err = -EAGAIN;
2067 goto restore_flag;
2068 }
4354994f 2069
fb24fea7 2070 down_write(&sbi->gc_lock);
4354994f
DR		 2071 cpc.reason = CP_PAUSE;
2072 set_sbi_flag(sbi, SBI_CP_DISABLED);
896285ad
CY		 2073 err = f2fs_write_checkpoint(sbi, &cpc);
2074 if (err)
2075 goto out_unlock;
4354994f 2076
c9c8ed50 2077 spin_lock(&sbi->stat_lock);
4d3aed70 2078 sbi->unusable_block_count = unusable;
c9c8ed50
CY		 2079 spin_unlock(&sbi->stat_lock);
2080
896285ad 2081out_unlock:
fb24fea7 2082 up_write(&sbi->gc_lock);
812a9597 2083restore_flag:
7a88ddb5 2084 sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
812a9597 2085 return err;
4354994f
DR		 2086}
2087
2088static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
2089{
dddd3d65
JK		 2090 int retry = DEFAULT_RETRY_IO_COUNT;
2091
b0ff4fe7 2092 /* we should flush all the data to keep data consistency */
dddd3d65
JK		 2093 do {
2094 sync_inodes_sb(sbi->sb);
2095 cond_resched();
2096 congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
2097 } while (get_pages(sbi, F2FS_DIRTY_DATA) && retry--);
2098
2099 if (unlikely(retry < 0))
2100 f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
b0ff4fe7 2101
fb24fea7 2102 down_write(&sbi->gc_lock);
4354994f
DR		 2103 f2fs_dirty_to_prefree(sbi);
2104
2105 clear_sbi_flag(sbi, SBI_CP_DISABLED);
2106 set_sbi_flag(sbi, SBI_IS_DIRTY);
fb24fea7 2107 up_write(&sbi->gc_lock);
4354994f
DR		 2108
2109 f2fs_sync_fs(sbi->sb, 1);
2110}
2111
696c018c
NJ		 2112static int f2fs_remount(struct super_block *sb, int *flags, char *data)
2113{
2114 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2115 struct f2fs_mount_info org_mount_opt;
0abd675e 2116 unsigned long old_sb_flags;
63189b78 2117 int err;
3fd97359
CY		 2118 bool need_restart_gc = false, need_stop_gc = false;
2119 bool need_restart_ckpt = false, need_stop_ckpt = false;
2120 bool need_restart_flush = false, need_stop_flush = false;
4d674904 2121 bool need_restart_discard = false, need_stop_discard = false;
9cd81ce3 2122 bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
277afbde 2123 bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
1f78adfa 2124 bool no_io_align = !F2FS_IO_ALIGNED(sbi);
093749e2 2125 bool no_atgc = !test_opt(sbi, ATGC);
4d674904 2126 bool no_discard = !test_opt(sbi, DISCARD);
6ce19aff 2127 bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
4f993264 2128 bool block_unit_discard = f2fs_block_unit_discard(sbi);
4d674904 2129 struct discard_cmd_control *dcc;
4b2414d0 2130#ifdef CONFIG_QUOTA
4b2414d0
CY		 2131 int i, j;
2132#endif
696c018c
NJ		 2133
2134 /*
2135 * Save the old mount options in case we
2136 * need to restore them.
2137 */
2138 org_mount_opt = sbi->mount_opt;
0abd675e 2139 old_sb_flags = sb->s_flags;
696c018c 2140
4b2414d0 2141#ifdef CONFIG_QUOTA
63189b78 2142 org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt;
4b2414d0 2143 for (i = 0; i < MAXQUOTAS; i++) {
63189b78
CY		 2144 if (F2FS_OPTION(sbi).s_qf_names[i]) {
2145 org_mount_opt.s_qf_names[i] =
2146 kstrdup(F2FS_OPTION(sbi).s_qf_names[i],
2147 GFP_KERNEL);
2148 if (!org_mount_opt.s_qf_names[i]) {
4b2414d0 2149 for (j = 0; j < i; j++)
ba87a45c 2150 kfree(org_mount_opt.s_qf_names[j]);
4b2414d0
CY		 2151 return -ENOMEM;
2152 }
2153 } else {
63189b78 2154 org_mount_opt.s_qf_names[i] = NULL;
4b2414d0
CY		 2155 }
2156 }
2157#endif
2158
df728b0f 2159 /* recover superblocks we couldn't write due to previous RO mount */
1751e8a6 2160 if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
df728b0f 2161 err = f2fs_commit_super(sbi, false);
dcbb4c10
JP		 2162 f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
2163 err);
df728b0f
JK		 2164 if (!err)
2165 clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
2166 }
2167
498c5e9f 2168 default_options(sbi);
26666c8a 2169
696c018c 2170 /* parse mount options */
ed318a6c 2171 err = parse_options(sb, data, true);
696c018c
NJ		 2172 if (err)
2173 goto restore_opts;
2174
2175 /*
2176 * Previous and new state of filesystem is RO,
876dc59e 2177 * so skip checking GC and FLUSH_MERGE conditions.
696c018c 2178 */
1751e8a6 2179 if (f2fs_readonly(sb) && (*flags & SB_RDONLY))
696c018c
NJ		 2180 goto skip;
2181
a7d9fe3c
JK		 2182 if (f2fs_sb_has_readonly(sbi) && !(*flags & SB_RDONLY)) {
2183 err = -EROFS;
2184 goto restore_opts;
2185 }
2186
ea676733 2187#ifdef CONFIG_QUOTA
1751e8a6 2188 if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) {
0abd675e
CY		 2189 err = dquot_suspend(sb, -1);
2190 if (err < 0)
2191 goto restore_opts;
4354994f 2192 } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
0abd675e 2193 /* dquot_resume needs RW */
1751e8a6 2194 sb->s_flags &= ~SB_RDONLY;
ea676733
JK		 2195 if (sb_any_quota_suspended(sb)) {
2196 dquot_resume(sb, -1);
7beb01f7 2197 } else if (f2fs_sb_has_quota_ino(sbi)) {
ea676733
JK		 2198 err = f2fs_enable_quotas(sb);
2199 if (err)
2200 goto restore_opts;
2201 }
0abd675e 2202 }
ea676733 2203#endif
093749e2
CY		 2204 /* disallow enable atgc dynamically */
2205 if (no_atgc == !!test_opt(sbi, ATGC)) {
2206 err = -EINVAL;
2207 f2fs_warn(sbi, "switch atgc option is not allowed");
2208 goto restore_opts;
2209 }
2210
9cd81ce3
CY		 2211 /* disallow enable/disable extent_cache dynamically */
2212 if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) {
2213 err = -EINVAL;
dcbb4c10 2214 f2fs_warn(sbi, "switch extent_cache option is not allowed");
9cd81ce3
CY		 2215 goto restore_opts;
2216 }
2217
1f78adfa
CY		 2218 if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
2219 err = -EINVAL;
2220 f2fs_warn(sbi, "switch io_bits option is not allowed");
2221 goto restore_opts;
2222 }
2223
6ce19aff
CY		 2224 if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) {
2225 err = -EINVAL;
2226 f2fs_warn(sbi, "switch compress_cache option is not allowed");
2227 goto restore_opts;
2228 }
2229
4f993264
CY		 2230 if (block_unit_discard != f2fs_block_unit_discard(sbi)) {
2231 err = -EINVAL;
2232 f2fs_warn(sbi, "switch discard_unit option is not allowed");
2233 goto restore_opts;
2234 }
2235
4354994f
DR		 2236 if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
2237 err = -EINVAL;
dcbb4c10 2238 f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
4354994f
DR		 2239 goto restore_opts;
2240 }
2241
696c018c
NJ		 2242 /*
2243 * We stop the GC thread if FS is mounted as RO
2244 * or if background_gc = off is passed in mount
2245 * option. Also sync the filesystem.
2246 */
bbbc34fd 2247 if ((*flags & SB_RDONLY) ||
5911d2d1
CY		 2248 (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF &&
2249 !test_opt(sbi, GC_MERGE))) {
696c018c 2250 if (sbi->gc_thread) {
4d57b86d 2251 f2fs_stop_gc_thread(sbi);
876dc59e 2252 need_restart_gc = true;
696c018c 2253 }
aba291b3 2254 } else if (!sbi->gc_thread) {
4d57b86d 2255 err = f2fs_start_gc_thread(sbi);
696c018c
NJ		 2256 if (err)
2257 goto restore_opts;
876dc59e
GZ		 2258 need_stop_gc = true;
2259 }
2260
63189b78
CY		 2261 if (*flags & SB_RDONLY ||
2262 F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) {
faa0e55b
JK		 2263 sync_inodes_sb(sb);
2264
2265 set_sbi_flag(sbi, SBI_IS_DIRTY);
2266 set_sbi_flag(sbi, SBI_IS_CLOSE);
2267 f2fs_sync_fs(sb, 1);
2268 clear_sbi_flag(sbi, SBI_IS_CLOSE);
2269 }
2270
3f7070b0
CY		 2271 if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) ||
2272 !test_opt(sbi, MERGE_CHECKPOINT)) {
2273 f2fs_stop_ckpt_thread(sbi);
3fd97359 2274 need_restart_ckpt = true;
3f7070b0 2275 } else {
261eeb9c
DJ		 2276 err = f2fs_start_ckpt_thread(sbi);
2277 if (err) {
2278 f2fs_err(sbi,
2279 "Failed to start F2FS issue_checkpoint_thread (%d)",
2280 err);
2281 goto restore_gc;
2282 }
3fd97359 2283 need_stop_ckpt = true;
261eeb9c
DJ		 2284 }
2285
876dc59e
GZ		 2286 /*
2287 * We stop issue flush thread if FS is mounted as RO
2288 * or if flush_merge is not passed in mount option.
2289 */
1751e8a6 2290 if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) {
5eba8c5d 2291 clear_opt(sbi, FLUSH_MERGE);
4d57b86d 2292 f2fs_destroy_flush_cmd_control(sbi, false);
3fd97359 2293 need_restart_flush = true;
5eba8c5d 2294 } else {
4d57b86d 2295 err = f2fs_create_flush_cmd_control(sbi);
2163d198 2296 if (err)
3fd97359
CY		 2297 goto restore_ckpt;
2298 need_stop_flush = true;
696c018c 2299 }
3fd97359 2300
4d674904
FC		 2301 if (no_discard == !!test_opt(sbi, DISCARD)) {
2302 if (test_opt(sbi, DISCARD)) {
2303 err = f2fs_start_discard_thread(sbi);
2304 if (err)
2305 goto restore_flush;
2306 need_stop_discard = true;
2307 } else {
2308 dcc = SM_I(sbi)->dcc_info;
2309 f2fs_stop_discard_thread(sbi);
2310 if (atomic_read(&dcc->discard_cmd_cnt))
2311 f2fs_issue_discard_timeout(sbi);
2312 need_restart_discard = true;
2313 }
2314 }
2315
277afbde 2316 if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
3fd97359
CY		 2317 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
2318 err = f2fs_disable_checkpoint(sbi);
2319 if (err)
4d674904 2320 goto restore_discard;
3fd97359
CY		 2321 } else {
2322 f2fs_enable_checkpoint(sbi);
2323 }
2324 }
2325
696c018c 2326skip:
4b2414d0
CY		 2327#ifdef CONFIG_QUOTA
2328 /* Release old quota file names */
2329 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 2330 kfree(org_mount_opt.s_qf_names[i]);
4b2414d0 2331#endif
696c018c 2332 /* Update the POSIXACL Flag */
1751e8a6
LT		 2333 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
2334 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
df728b0f 2335
7e65be49 2336 limit_reserve_root(sbi);
1ae18f71 2337 adjust_unusable_cap_perc(sbi);
095680f2 2338 *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
696c018c 2339 return 0;
4d674904
FC		 2340restore_discard:
2341 if (need_restart_discard) {
2342 if (f2fs_start_discard_thread(sbi))
2343 f2fs_warn(sbi, "discard has been stopped");
2344 } else if (need_stop_discard) {
2345 f2fs_stop_discard_thread(sbi);
2346 }
3fd97359
CY		 2347restore_flush:
2348 if (need_restart_flush) {
2349 if (f2fs_create_flush_cmd_control(sbi))
2350 f2fs_warn(sbi, "background flush thread has stopped");
2351 } else if (need_stop_flush) {
2352 clear_opt(sbi, FLUSH_MERGE);
2353 f2fs_destroy_flush_cmd_control(sbi, false);
2354 }
2355restore_ckpt:
2356 if (need_restart_ckpt) {
2357 if (f2fs_start_ckpt_thread(sbi))
2358 f2fs_warn(sbi, "background ckpt thread has stopped");
2359 } else if (need_stop_ckpt) {
2360 f2fs_stop_ckpt_thread(sbi);
2361 }
876dc59e
GZ		 2362restore_gc:
2363 if (need_restart_gc) {
4d57b86d 2364 if (f2fs_start_gc_thread(sbi))
dcbb4c10 2365 f2fs_warn(sbi, "background gc thread has stopped");
876dc59e 2366 } else if (need_stop_gc) {
4d57b86d 2367 f2fs_stop_gc_thread(sbi);
876dc59e 2368 }
696c018c 2369restore_opts:
4b2414d0 2370#ifdef CONFIG_QUOTA
63189b78 2371 F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
4b2414d0 2372 for (i = 0; i < MAXQUOTAS; i++) {
ba87a45c 2373 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
63189b78 2374 F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
4b2414d0
CY		 2375 }
2376#endif
696c018c 2377 sbi->mount_opt = org_mount_opt;
0abd675e 2378 sb->s_flags = old_sb_flags;
696c018c
NJ		 2379 return err;
2380}
2381
0abd675e
CY		 2382#ifdef CONFIG_QUOTA
2383/* Read data from quotafile */
2384static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
2385 size_t len, loff_t off)
2386{
2387 struct inode *inode = sb_dqopt(sb)->files[type];
2388 struct address_space *mapping = inode->i_mapping;
2389 block_t blkidx = F2FS_BYTES_TO_BLK(off);
2390 int offset = off & (sb->s_blocksize - 1);
2391 int tocopy;
2392 size_t toread;
2393 loff_t i_size = i_size_read(inode);
2394 struct page *page;
2395 char *kaddr;
2396
2397 if (off > i_size)
2398 return 0;
2399
2400 if (off + len > i_size)
2401 len = i_size - off;
2402 toread = len;
2403 while (toread > 0) {
2404 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
2405repeat:
02117b8a 2406 page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
4e46a023
JK		 2407 if (IS_ERR(page)) {
2408 if (PTR_ERR(page) == -ENOMEM) {
5df7731f
CY		 2409 congestion_wait(BLK_RW_ASYNC,
2410 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2411 goto repeat;
2412 }
af033b2a 2413 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2414 return PTR_ERR(page);
4e46a023 2415 }
0abd675e
CY		 2416
2417 lock_page(page);
2418
2419 if (unlikely(page->mapping != mapping)) {
2420 f2fs_put_page(page, 1);
2421 goto repeat;
2422 }
2423 if (unlikely(!PageUptodate(page))) {
2424 f2fs_put_page(page, 1);
af033b2a 2425 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e
CY		 2426 return -EIO;
2427 }
2428
2429 kaddr = kmap_atomic(page);
2430 memcpy(data, kaddr + offset, tocopy);
2431 kunmap_atomic(kaddr);
2432 f2fs_put_page(page, 1);
2433
2434 offset = 0;
2435 toread -= tocopy;
2436 data += tocopy;
2437 blkidx++;
2438 }
2439 return len;
2440}
2441
2442/* Write to quotafile */
2443static ssize_t f2fs_quota_write(struct super_block *sb, int type,
2444 const char *data, size_t len, loff_t off)
2445{
2446 struct inode *inode = sb_dqopt(sb)->files[type];
2447 struct address_space *mapping = inode->i_mapping;
2448 const struct address_space_operations *a_ops = mapping->a_ops;
2449 int offset = off & (sb->s_blocksize - 1);
2450 size_t towrite = len;
2451 struct page *page;
62f63eea 2452 void *fsdata = NULL;
0abd675e
CY		 2453 char *kaddr;
2454 int err = 0;
2455 int tocopy;
2456
2457 while (towrite > 0) {
2458 tocopy = min_t(unsigned long, sb->s_blocksize - offset,
2459 towrite);
4e46a023 2460retry:
0abd675e 2461 err = a_ops->write_begin(NULL, mapping, off, tocopy, 0,
62f63eea 2462 &page, &fsdata);
4e46a023
JK		 2463 if (unlikely(err)) {
2464 if (err == -ENOMEM) {
5df7731f
CY		 2465 congestion_wait(BLK_RW_ASYNC,
2466 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2467 goto retry;
2468 }
af033b2a 2469 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2470 break;
4e46a023 2471 }
0abd675e
CY		 2472
2473 kaddr = kmap_atomic(page);
2474 memcpy(kaddr + offset, data, tocopy);
2475 kunmap_atomic(kaddr);
2476 flush_dcache_page(page);
2477
2478 a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
62f63eea 2479 page, fsdata);
0abd675e
CY		 2480 offset = 0;
2481 towrite -= tocopy;
2482 off += tocopy;
2483 data += tocopy;
2484 cond_resched();
2485 }
2486
2487 if (len == towrite)
6e5b5d41 2488 return err;
0abd675e
CY		 2489 inode->i_mtime = inode->i_ctime = current_time(inode);
2490 f2fs_mark_inode_dirty_sync(inode, false);
2491 return len - towrite;
2492}
2493
2494static struct dquot **f2fs_get_dquots(struct inode *inode)
2495{
2496 return F2FS_I(inode)->i_dquot;
2497}
2498
2499static qsize_t *f2fs_get_reserved_space(struct inode *inode)
2500{
2501 return &F2FS_I(inode)->i_reserved_quota;
2502}
2503
4b2414d0
CY		 2504static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
2505{
af033b2a 2506 if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2507 f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
af033b2a
CY		 2508 return 0;
2509 }
2510
63189b78
CY		 2511 return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
2512 F2FS_OPTION(sbi).s_jquota_fmt, type);
4b2414d0
CY		 2513}
2514
ea676733 2515int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
4b2414d0 2516{
ea676733
JK		 2517 int enabled = 0;
2518 int i, err;
2519
7beb01f7 2520 if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
ea676733
JK		 2521 err = f2fs_enable_quotas(sbi->sb);
2522 if (err) {
dcbb4c10 2523 f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
ea676733
JK		 2524 return 0;
2525 }
2526 return 1;
2527 }
4b2414d0
CY		 2528
2529 for (i = 0; i < MAXQUOTAS; i++) {
63189b78 2530 if (F2FS_OPTION(sbi).s_qf_names[i]) {
ea676733
JK		 2531 err = f2fs_quota_on_mount(sbi, i);
2532 if (!err) {
2533 enabled = 1;
2534 continue;
2535 }
dcbb4c10
JP		 2536 f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
2537 err, i);
4b2414d0
CY		 2538 }
2539 }
ea676733
JK		 2540 return enabled;
2541}
2542
2543static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
2544 unsigned int flags)
2545{
2546 struct inode *qf_inode;
2547 unsigned long qf_inum;
2548 int err;
2549
7beb01f7 2550 BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
ea676733
JK		 2551
2552 qf_inum = f2fs_qf_ino(sb, type);
2553 if (!qf_inum)
2554 return -EPERM;
2555
2556 qf_inode = f2fs_iget(sb, qf_inum);
2557 if (IS_ERR(qf_inode)) {
dcbb4c10 2558 f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
ea676733
JK		 2559 return PTR_ERR(qf_inode);
2560 }
2561
2562 /* Don't account quota for quota files to avoid recursion */
2563 qf_inode->i_flags |= S_NOQUOTA;
7212b95e 2564 err = dquot_load_quota_inode(qf_inode, type, format_id, flags);
ea676733
JK		 2565 iput(qf_inode);
2566 return err;
2567}
2568
2569static int f2fs_enable_quotas(struct super_block *sb)
2570{
dcbb4c10 2571 struct f2fs_sb_info *sbi = F2FS_SB(sb);
ea676733
JK		 2572 int type, err = 0;
2573 unsigned long qf_inum;
2574 bool quota_mopt[MAXQUOTAS] = {
dcbb4c10
JP		 2575 test_opt(sbi, USRQUOTA),
2576 test_opt(sbi, GRPQUOTA),
2577 test_opt(sbi, PRJQUOTA),
ea676733
JK		 2578 };
2579
af033b2a 2580 if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2581 f2fs_err(sbi, "quota file may be corrupted, skip loading it");
af033b2a
CY		 2582 return 0;
2583 }
2584
2585 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
2586
ea676733
JK		 2587 for (type = 0; type < MAXQUOTAS; type++) {
2588 qf_inum = f2fs_qf_ino(sb, type);
2589 if (qf_inum) {
2590 err = f2fs_quota_enable(sb, type, QFMT_VFS_V1,
2591 DQUOT_USAGE_ENABLED |
2592 (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
2593 if (err) {
dcbb4c10
JP		 2594 f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
2595 type, err);
ea676733
JK		 2596 for (type--; type >= 0; type--)
2597 dquot_quota_off(sb, type);
af033b2a
CY		 2598 set_sbi_flag(F2FS_SB(sb),
2599 SBI_QUOTA_NEED_REPAIR);
ea676733
JK		 2600 return err;
2601 }
4b2414d0
CY		 2602 }
2603 }
ea676733 2604 return 0;
4b2414d0
CY		 2605}
2606
9de71ede
CY		 2607static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type)
2608{
2609 struct quota_info *dqopt = sb_dqopt(sbi->sb);
2610 struct address_space *mapping = dqopt->files[type]->i_mapping;
2611 int ret = 0;
2612
2613 ret = dquot_writeback_dquots(sbi->sb, type);
2614 if (ret)
2615 goto out;
2616
2617 ret = filemap_fdatawrite(mapping);
2618 if (ret)
2619 goto out;
2620
2621 /* if we are using journalled quota */
2622 if (is_journalled_quota(sbi))
2623 goto out;
2624
2625 ret = filemap_fdatawait(mapping);
2626
2627 truncate_inode_pages(&dqopt->files[type]->i_data, 0);
2628out:
2629 if (ret)
2630 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2631 return ret;
2632}
2633
af033b2a 2634int f2fs_quota_sync(struct super_block *sb, int type)
0abd675e 2635{
af033b2a 2636 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0abd675e
CY		 2637 struct quota_info *dqopt = sb_dqopt(sb);
2638 int cnt;
2639 int ret;
2640
0abd675e
CY		 2641 /*
2642 * Now when everything is written we can discard the pagecache so
2643 * that userspace sees the changes.
2644 */
2645 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
af033b2a 2646
0abd675e
CY		 2647 if (type != -1 && cnt != type)
2648 continue;
0abd675e 2649
9de71ede
CY		 2650 if (!sb_has_quota_active(sb, type))
2651 return 0;
af033b2a 2652
9de71ede 2653 inode_lock(dqopt->files[cnt]);
af033b2a 2654
9de71ede
CY		 2655 /*
2656 * do_quotactl
2657 * f2fs_quota_sync
2658 * down_read(quota_sem)
2659 * dquot_writeback_dquots()
2660 * f2fs_dquot_commit
2661 * block_operation
2662 * down_read(quota_sem)
2663 */
2664 f2fs_lock_op(sbi);
2665 down_read(&sbi->quota_sem);
af033b2a 2666
9de71ede
CY		 2667 ret = f2fs_quota_sync_file(sbi, cnt);
2668
2669 up_read(&sbi->quota_sem);
2670 f2fs_unlock_op(sbi);
0abd675e 2671
0abd675e 2672 inode_unlock(dqopt->files[cnt]);
9de71ede
CY		 2673
2674 if (ret)
2675 break;
0abd675e 2676 }
af033b2a 2677 return ret;
0abd675e
CY		 2678}
2679
2680static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
2681 const struct path *path)
2682{
2683 struct inode *inode;
2684 int err;
2685
fe973b06
CY		 2686 /* if quota sysfile exists, deny enabling quota with specific file */
2687 if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
2688 f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
2689 return -EBUSY;
2690 }
2691
9a20d391 2692 err = f2fs_quota_sync(sb, type);
0abd675e
CY		 2693 if (err)
2694 return err;
2695
2696 err = dquot_quota_on(sb, type, format_id, path);
2697 if (err)
2698 return err;
2699
2700 inode = d_inode(path->dentry);
2701
2702 inode_lock(inode);
59c84408 2703 F2FS_I(inode)->i_flags |= F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL;
9149a5eb 2704 f2fs_set_inode_flags(inode);
0abd675e
CY		 2705 inode_unlock(inode);
2706 f2fs_mark_inode_dirty_sync(inode, false);
2707
2708 return 0;
2709}
2710
fe973b06 2711static int __f2fs_quota_off(struct super_block *sb, int type)
0abd675e
CY		 2712{
2713 struct inode *inode = sb_dqopt(sb)->files[type];
2714 int err;
2715
2716 if (!inode || !igrab(inode))
2717 return dquot_quota_off(sb, type);
2718
cda9cc59
YH		 2719 err = f2fs_quota_sync(sb, type);
2720 if (err)
2721 goto out_put;
0abd675e
CY		 2722
2723 err = dquot_quota_off(sb, type);
7beb01f7 2724 if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
0abd675e
CY		 2725 goto out_put;
2726
2727 inode_lock(inode);
59c84408 2728 F2FS_I(inode)->i_flags &= ~(F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL);
9149a5eb 2729 f2fs_set_inode_flags(inode);
0abd675e
CY		 2730 inode_unlock(inode);
2731 f2fs_mark_inode_dirty_sync(inode, false);
2732out_put:
2733 iput(inode);
2734 return err;
2735}
2736
fe973b06
CY		 2737static int f2fs_quota_off(struct super_block *sb, int type)
2738{
2739 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2740 int err;
2741
2742 err = __f2fs_quota_off(sb, type);
2743
2744 /*
2745 * quotactl can shutdown journalled quota, result in inconsistence
2746 * between quota record and fs data by following updates, tag the
2747 * flag to let fsck be aware of it.
2748 */
2749 if (is_journalled_quota(sbi))
2750 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2751 return err;
2752}
2753
4b2414d0 2754void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2755{
2756 int type;
cda9cc59
YH		 2757 int err;
2758
2759 for (type = 0; type < MAXQUOTAS; type++) {
fe973b06 2760 err = __f2fs_quota_off(sb, type);
cda9cc59
YH		 2761 if (err) {
2762 int ret = dquot_quota_off(sb, type);
0abd675e 2763
dcbb4c10
JP		 2764 f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
2765 type, err, ret);
af033b2a 2766 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
cda9cc59
YH		 2767 }
2768 }
0e0667b6
JK		 2769 /*
2770 * In case of checkpoint=disable, we must flush quota blocks.
2771 * This can cause NULL exception for node_inode in end_io, since
2772 * put_super already dropped it.
2773 */
2774 sync_filesystem(sb);
0abd675e
CY		 2775}
2776
26b5a079
SY		 2777static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
2778{
2779 struct quota_info *dqopt = sb_dqopt(sb);
2780 int type;
2781
2782 for (type = 0; type < MAXQUOTAS; type++) {
2783 if (!dqopt->files[type])
2784 continue;
2785 f2fs_inode_synced(dqopt->files[type]);
2786 }
2787}
2788
af033b2a
CY		 2789static int f2fs_dquot_commit(struct dquot *dquot)
2790{
db6ec53b 2791 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2792 int ret;
2793
2c4e0c52 2794 down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
af033b2a
CY		 2795 ret = dquot_commit(dquot);
2796 if (ret < 0)
db6ec53b
JK		 2797 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2798 up_read(&sbi->quota_sem);
af033b2a
CY		 2799 return ret;
2800}
2801
2802static int f2fs_dquot_acquire(struct dquot *dquot)
2803{
db6ec53b 2804 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2805 int ret;
2806
db6ec53b 2807 down_read(&sbi->quota_sem);
af033b2a
CY		 2808 ret = dquot_acquire(dquot);
2809 if (ret < 0)
db6ec53b
JK		 2810 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2811 up_read(&sbi->quota_sem);
af033b2a
CY		 2812 return ret;
2813}
2814
2815static int f2fs_dquot_release(struct dquot *dquot)
2816{
db6ec53b 2817 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
2c4e0c52 2818 int ret = dquot_release(dquot);
af033b2a 2819
af033b2a 2820 if (ret < 0)
db6ec53b 2821 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2822 return ret;
2823}
2824
2825static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
2826{
2827 struct super_block *sb = dquot->dq_sb;
2828 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2829 int ret = dquot_mark_dquot_dirty(dquot);
af033b2a
CY		 2830
2831 /* if we are using journalled quota */
2832 if (is_journalled_quota(sbi))
2833 set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
2834
2835 return ret;
2836}
2837
2838static int f2fs_dquot_commit_info(struct super_block *sb, int type)
2839{
db6ec53b 2840 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2841 int ret = dquot_commit_info(sb, type);
af033b2a 2842
af033b2a 2843 if (ret < 0)
db6ec53b 2844 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2845 return ret;
2846}
26b5a079 2847
94b1e10e 2848static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
5c57132e
CY		 2849{
2850 *projid = F2FS_I(inode)->i_projid;
2851 return 0;
2852}
2853
0abd675e
CY		 2854static const struct dquot_operations f2fs_quota_operations = {
2855 .get_reserved_space = f2fs_get_reserved_space,
af033b2a
CY		 2856 .write_dquot = f2fs_dquot_commit,
2857 .acquire_dquot = f2fs_dquot_acquire,
2858 .release_dquot = f2fs_dquot_release,
2859 .mark_dirty = f2fs_dquot_mark_dquot_dirty,
2860 .write_info = f2fs_dquot_commit_info,
0abd675e
CY		 2861 .alloc_dquot = dquot_alloc,
2862 .destroy_dquot = dquot_destroy,
5c57132e 2863 .get_projid = f2fs_get_projid,
0abd675e
CY		 2864 .get_next_id = dquot_get_next_id,
2865};
2866
2867static const struct quotactl_ops f2fs_quotactl_ops = {
2868 .quota_on = f2fs_quota_on,
2869 .quota_off = f2fs_quota_off,
2870 .quota_sync = f2fs_quota_sync,
2871 .get_state = dquot_get_state,
2872 .set_info = dquot_set_dqinfo,
2873 .get_dqblk = dquot_get_dqblk,
2874 .set_dqblk = dquot_set_dqblk,
2875 .get_nextdqblk = dquot_get_next_dqblk,
2876};
2877#else
af033b2a
CY		 2878int f2fs_quota_sync(struct super_block *sb, int type)
2879{
2880 return 0;
2881}
2882
4b2414d0 2883void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2884{
2885}
2886#endif
2887
f62fc9f9 2888static const struct super_operations f2fs_sops = {
aff063e2 2889 .alloc_inode = f2fs_alloc_inode,
d01718a0 2890 .free_inode = f2fs_free_inode,
531ad7d5 2891 .drop_inode = f2fs_drop_inode,
aff063e2 2892 .write_inode = f2fs_write_inode,
b3783873 2893 .dirty_inode = f2fs_dirty_inode,
aff063e2 2894 .show_options = f2fs_show_options,
0abd675e
CY		 2895#ifdef CONFIG_QUOTA
2896 .quota_read = f2fs_quota_read,
2897 .quota_write = f2fs_quota_write,
2898 .get_dquots = f2fs_get_dquots,
2899#endif
aff063e2
JK		 2900 .evict_inode = f2fs_evict_inode,
2901 .put_super = f2fs_put_super,
2902 .sync_fs = f2fs_sync_fs,
d6212a5f
CL		 2903 .freeze_fs = f2fs_freeze,
2904 .unfreeze_fs = f2fs_unfreeze,
aff063e2 2905 .statfs = f2fs_statfs,
696c018c 2906 .remount_fs = f2fs_remount,
aff063e2
JK		 2907};
2908
643fa961 2909#ifdef CONFIG_FS_ENCRYPTION
0b81d077
JK		 2910static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
2911{
2912 return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2913 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2914 ctx, len, NULL);
2915}
2916
2917static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
2918 void *fs_data)
2919{
b7c409de
SY		 2920 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2921
2922 /*
2923 * Encrypting the root directory is not allowed because fsck
2924 * expects lost+found directory to exist and remain unencrypted
2925 * if LOST_FOUND feature is enabled.
2926 *
2927 */
7beb01f7 2928 if (f2fs_sb_has_lost_found(sbi) &&
b7c409de
SY		 2929 inode->i_ino == F2FS_ROOT_INO(sbi))
2930 return -EPERM;
2931
0b81d077
JK		 2932 return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2933 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2934 ctx, len, fs_data, XATTR_CREATE);
2935}
2936
ac4acb1f 2937static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb)
ff62af20 2938{
ac4acb1f 2939 return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy;
ff62af20
SY		 2940}
2941
0eee17e3
EB		 2942static bool f2fs_has_stable_inodes(struct super_block *sb)
2943{
2944 return true;
2945}
2946
2947static void f2fs_get_ino_and_lblk_bits(struct super_block *sb,
2948 int *ino_bits_ret, int *lblk_bits_ret)
2949{
2950 *ino_bits_ret = 8 * sizeof(nid_t);
2951 *lblk_bits_ret = 8 * sizeof(block_t);
2952}
2953
27aacd28
ST		 2954static int f2fs_get_num_devices(struct super_block *sb)
2955{
2956 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2957
2958 if (f2fs_is_multi_device(sbi))
2959 return sbi->s_ndevs;
2960 return 1;
2961}
2962
2963static void f2fs_get_devices(struct super_block *sb,
2964 struct request_queue **devs)
2965{
2966 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2967 int i;
2968
2969 for (i = 0; i < sbi->s_ndevs; i++)
2970 devs[i] = bdev_get_queue(FDEV(i).bdev);
2971}
2972
6f69f0ed 2973static const struct fscrypt_operations f2fs_cryptops = {
0eee17e3
EB		 2974 .key_prefix = "f2fs:",
2975 .get_context = f2fs_get_context,
2976 .set_context = f2fs_set_context,
ac4acb1f 2977 .get_dummy_policy = f2fs_get_dummy_policy,
0eee17e3 2978 .empty_dir = f2fs_empty_dir,
0eee17e3
EB		 2979 .has_stable_inodes = f2fs_has_stable_inodes,
2980 .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
27aacd28
ST		 2981 .get_num_devices = f2fs_get_num_devices,
2982 .get_devices = f2fs_get_devices,
0b81d077 2983};
0b81d077
JK		 2984#endif
2985
aff063e2
JK		 2986static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
2987 u64 ino, u32 generation)
2988{
2989 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2990 struct inode *inode;
2991
4d57b86d 2992 if (f2fs_check_nid_range(sbi, ino))
910bb12d 2993 return ERR_PTR(-ESTALE);
aff063e2
JK		 2994
2995 /*
2996 * f2fs_iget isn't quite right if the inode is currently unallocated!
2997 * However f2fs_iget currently does appropriate checks to handle stale
2998 * inodes so everything is OK.
2999 */
3000 inode = f2fs_iget(sb, ino);
3001 if (IS_ERR(inode))
3002 return ERR_CAST(inode);
6bacf52f 3003 if (unlikely(generation && inode->i_generation != generation)) {
aff063e2
JK		 3004 /* we didn't find the right inode.. */
3005 iput(inode);
3006 return ERR_PTR(-ESTALE);
3007 }
3008 return inode;
3009}
3010
3011static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
3012 int fh_len, int fh_type)
3013{
3014 return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
3015 f2fs_nfs_get_inode);
3016}
3017
3018static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid,
3019 int fh_len, int fh_type)
3020{
3021 return generic_fh_to_parent(sb, fid, fh_len, fh_type,
3022 f2fs_nfs_get_inode);
3023}
3024
3025static const struct export_operations f2fs_export_ops = {
3026 .fh_to_dentry = f2fs_fh_to_dentry,
3027 .fh_to_parent = f2fs_fh_to_parent,
3028 .get_parent = f2fs_get_parent,
3029};
3030
6d1451bf 3031loff_t max_file_blocks(struct inode *inode)
aff063e2 3032{
7a2af766 3033 loff_t result = 0;
6d1451bf 3034 loff_t leaf_count;
aff063e2 3035
7a2af766
CY		 3036 /*
3037 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
6afc662e 3038 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
7a2af766
CY		 3039 * space in inode.i_addr, it will be more safe to reassign
3040 * result as zero.
3041 */
3042
6d1451bf
CX		 3043 if (inode && f2fs_compressed_file(inode))
3044 leaf_count = ADDRS_PER_BLOCK(inode);
3045 else
3046 leaf_count = DEF_ADDRS_PER_BLOCK;
3047
aff063e2
JK		 3048 /* two direct node blocks */
3049 result += (leaf_count * 2);
3050
3051 /* two indirect node blocks */
3052 leaf_count *= NIDS_PER_BLOCK;
3053 result += (leaf_count * 2);
3054
3055 /* one double indirect node block */
3056 leaf_count *= NIDS_PER_BLOCK;
3057 result += leaf_count;
3058
aff063e2
JK		 3059 return result;
3060}
3061
fd694733
JK		 3062static int __f2fs_commit_super(struct buffer_head *bh,
3063 struct f2fs_super_block *super)
3064{
3065 lock_buffer(bh);
3066 if (super)
3067 memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
fd694733
JK		 3068 set_buffer_dirty(bh);
3069 unlock_buffer(bh);
3070
3071 /* it's rare case, we can do fua all the time */
3adc5fcb 3072 return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
fd694733
JK		 3073}
3074
df728b0f 3075static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
fd694733 3076 struct buffer_head *bh)
9a59b62f 3077{
fd694733
JK		 3078 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3079 (bh->b_data + F2FS_SUPER_OFFSET);
df728b0f 3080 struct super_block *sb = sbi->sb;
9a59b62f
CY		 3081 u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
3082 u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
3083 u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
3084 u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
3085 u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
3086 u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
3087 u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
3088 u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
3089 u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
3090 u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
3091 u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
3092 u32 segment_count = le32_to_cpu(raw_super->segment_count);
3093 u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
fd694733
JK		 3094 u64 main_end_blkaddr = main_blkaddr +
3095 (segment_count_main << log_blocks_per_seg);
3096 u64 seg_end_blkaddr = segment0_blkaddr +
3097 (segment_count << log_blocks_per_seg);
9a59b62f
CY		 3098
3099 if (segment0_blkaddr != cp_blkaddr) {
dcbb4c10
JP		 3100 f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
3101 segment0_blkaddr, cp_blkaddr);
9a59b62f
CY		 3102 return true;
3103 }
3104
3105 if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
3106 sit_blkaddr) {
dcbb4c10
JP		 3107 f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
3108 cp_blkaddr, sit_blkaddr,
3109 segment_count_ckpt << log_blocks_per_seg);
9a59b62f
CY		 3110 return true;
3111 }
3112
3113 if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
3114 nat_blkaddr) {
dcbb4c10
JP		 3115 f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
3116 sit_blkaddr, nat_blkaddr,
3117 segment_count_sit << log_blocks_per_seg);
9a59b62f
CY		 3118 return true;
3119 }
3120
3121 if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
3122 ssa_blkaddr) {
dcbb4c10
JP		 3123 f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
3124 nat_blkaddr, ssa_blkaddr,
3125 segment_count_nat << log_blocks_per_seg);
9a59b62f
CY		 3126 return true;
3127 }
3128
3129 if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
3130 main_blkaddr) {
dcbb4c10
JP		 3131 f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
3132 ssa_blkaddr, main_blkaddr,
3133 segment_count_ssa << log_blocks_per_seg);
9a59b62f
CY		 3134 return true;
3135 }
3136
fd694733 3137 if (main_end_blkaddr > seg_end_blkaddr) {
d89f5891
WX		 3138 f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)",
3139 main_blkaddr, seg_end_blkaddr,
dcbb4c10 3140 segment_count_main << log_blocks_per_seg);
9a59b62f 3141 return true;
fd694733
JK		 3142 } else if (main_end_blkaddr < seg_end_blkaddr) {
3143 int err = 0;
3144 char *res;
3145
3146 /* fix in-memory information all the time */
3147 raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
3148 segment0_blkaddr) >> log_blocks_per_seg);
3149
3150 if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) {
df728b0f 3151 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
fd694733
JK		 3152 res = "internally";
3153 } else {
3154 err = __f2fs_commit_super(bh, NULL);
3155 res = err ? "failed" : "done";
3156 }
d89f5891
WX		 3157 f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)",
3158 res, main_blkaddr, seg_end_blkaddr,
dcbb4c10 3159 segment_count_main << log_blocks_per_seg);
fd694733
JK		 3160 if (err)
3161 return true;
9a59b62f 3162 }
9a59b62f
CY		 3163 return false;
3164}
3165
df728b0f 3166static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
fd694733 3167 struct buffer_head *bh)
aff063e2 3168{
f99ba9ad 3169 block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main;
0cfe75c5 3170 block_t total_sections, blocks_per_seg;
fd694733
JK		 3171 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3172 (bh->b_data + F2FS_SUPER_OFFSET);
d440c52d
JZ		 3173 size_t crc_offset = 0;
3174 __u32 crc = 0;
3175
38fb6d0e
IZ		 3176 if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
3177 f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
3178 F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
3179 return -EINVAL;
3180 }
3181
d440c52d 3182 /* Check checksum_offset and crc in superblock */
7beb01f7 3183 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
d440c52d
JZ		 3184 crc_offset = le32_to_cpu(raw_super->checksum_offset);
3185 if (crc_offset !=
3186 offsetof(struct f2fs_super_block, crc)) {
dcbb4c10
JP		 3187 f2fs_info(sbi, "Invalid SB checksum offset: %zu",
3188 crc_offset);
38fb6d0e 3189 return -EFSCORRUPTED;
d440c52d
JZ		 3190 }
3191 crc = le32_to_cpu(raw_super->crc);
3192 if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
dcbb4c10 3193 f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
38fb6d0e 3194 return -EFSCORRUPTED;
d440c52d
JZ		 3195 }
3196 }
aff063e2 3197
aff063e2 3198 /* Currently, support only 4KB block size */
e584bbe8
CY		 3199 if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) {
3200 f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u",
3201 le32_to_cpu(raw_super->log_blocksize),
3202 F2FS_BLKSIZE_BITS);
38fb6d0e 3203 return -EFSCORRUPTED;
a07ef784 3204 }
5c9b4692 3205
9a59b62f
CY		 3206 /* check log blocks per segment */
3207 if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
dcbb4c10
JP		 3208 f2fs_info(sbi, "Invalid log blocks per segment (%u)",
3209 le32_to_cpu(raw_super->log_blocks_per_seg));
38fb6d0e 3210 return -EFSCORRUPTED;
9a59b62f
CY		 3211 }
3212
55cf9cb6
CY		 3213 /* Currently, support 512/1024/2048/4096 bytes sector size */
3214 if (le32_to_cpu(raw_super->log_sectorsize) >
3215 F2FS_MAX_LOG_SECTOR_SIZE ||
3216 le32_to_cpu(raw_super->log_sectorsize) <
3217 F2FS_MIN_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3218 f2fs_info(sbi, "Invalid log sectorsize (%u)",
3219 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3220 return -EFSCORRUPTED;
a07ef784 3221 }
55cf9cb6
CY		 3222 if (le32_to_cpu(raw_super->log_sectors_per_block) +
3223 le32_to_cpu(raw_super->log_sectorsize) !=
3224 F2FS_MAX_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3225 f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
3226 le32_to_cpu(raw_super->log_sectors_per_block),
3227 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3228 return -EFSCORRUPTED;
a07ef784 3229 }
9a59b62f 3230
0cfe75c5 3231 segment_count = le32_to_cpu(raw_super->segment_count);
f99ba9ad 3232 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
0cfe75c5
JK		 3233 segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3234 secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3235 total_sections = le32_to_cpu(raw_super->section_count);
3236
3237 /* blocks_per_seg should be 512, given the above check */
3238 blocks_per_seg = 1 << le32_to_cpu(raw_super->log_blocks_per_seg);
3239
3240 if (segment_count > F2FS_MAX_SEGMENT ||
3241 segment_count < F2FS_MIN_SEGMENTS) {
dcbb4c10 3242 f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
38fb6d0e 3243 return -EFSCORRUPTED;
0cfe75c5
JK		 3244 }
3245
f99ba9ad 3246 if (total_sections > segment_count_main || total_sections < 1 ||
0cfe75c5 3247 segs_per_sec > segment_count || !segs_per_sec) {
dcbb4c10
JP		 3248 f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
3249 segment_count, total_sections, segs_per_sec);
38fb6d0e 3250 return -EFSCORRUPTED;
0cfe75c5
JK		 3251 }
3252
3a22e9ac
CY		 3253 if (segment_count_main != total_sections * segs_per_sec) {
3254 f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)",
3255 segment_count_main, total_sections, segs_per_sec);
3256 return -EFSCORRUPTED;
3257 }
3258
0cfe75c5 3259 if ((segment_count / segs_per_sec) < total_sections) {
dcbb4c10
JP		 3260 f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
3261 segment_count, segs_per_sec, total_sections);
38fb6d0e 3262 return -EFSCORRUPTED;
0cfe75c5
JK		 3263 }
3264
88960068 3265 if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
dcbb4c10
JP		 3266 f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
3267 segment_count, le64_to_cpu(raw_super->block_count));
38fb6d0e 3268 return -EFSCORRUPTED;
0cfe75c5
JK		 3269 }
3270
9f701f6c
QS		 3271 if (RDEV(0).path[0]) {
3272 block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
3273 int i = 1;
3274
3275 while (i < MAX_DEVICES && RDEV(i).path[0]) {
3276 dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
3277 i++;
3278 }
3279 if (segment_count != dev_seg_count) {
3280 f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
3281 segment_count, dev_seg_count);
3282 return -EFSCORRUPTED;
3283 }
07eb1d69
CY		 3284 } else {
3285 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) &&
3286 !bdev_is_zoned(sbi->sb->s_bdev)) {
3287 f2fs_info(sbi, "Zoned block device path is missing");
3288 return -EFSCORRUPTED;
3289 }
9f701f6c
QS		 3290 }
3291
42bf546c 3292 if (secs_per_zone > total_sections || !secs_per_zone) {
dcbb4c10
JP		 3293 f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
3294 secs_per_zone, total_sections);
38fb6d0e 3295 return -EFSCORRUPTED;
0cfe75c5
JK		 3296 }
3297 if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
3298 raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
3299 (le32_to_cpu(raw_super->extension_count) +
3300 raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
dcbb4c10
JP		 3301 f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
3302 le32_to_cpu(raw_super->extension_count),
3303 raw_super->hot_ext_count,
3304 F2FS_MAX_EXTENSION);
38fb6d0e 3305 return -EFSCORRUPTED;
0cfe75c5
JK		 3306 }
3307
65ddf656
CY		 3308 if (le32_to_cpu(raw_super->cp_payload) >=
3309 (blocks_per_seg - F2FS_CP_PACKS -
3310 NR_CURSEG_PERSIST_TYPE)) {
3311 f2fs_info(sbi, "Insane cp_payload (%u >= %u)",
dcbb4c10 3312 le32_to_cpu(raw_super->cp_payload),
65ddf656
CY		 3313 blocks_per_seg - F2FS_CP_PACKS -
3314 NR_CURSEG_PERSIST_TYPE);
38fb6d0e 3315 return -EFSCORRUPTED;
0cfe75c5
JK		 3316 }
3317
9a59b62f
CY		 3318 /* check reserved ino info */
3319 if (le32_to_cpu(raw_super->node_ino) != 1 ||
3320 le32_to_cpu(raw_super->meta_ino) != 2 ||
3321 le32_to_cpu(raw_super->root_ino) != 3) {
dcbb4c10
JP		 3322 f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
3323 le32_to_cpu(raw_super->node_ino),
3324 le32_to_cpu(raw_super->meta_ino),
3325 le32_to_cpu(raw_super->root_ino));
38fb6d0e 3326 return -EFSCORRUPTED;
9a59b62f
CY		 3327 }
3328
3329 /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
df728b0f 3330 if (sanity_check_area_boundary(sbi, bh))
38fb6d0e 3331 return -EFSCORRUPTED;
9a59b62f 3332
aff063e2
JK		 3333 return 0;
3334}
3335
4d57b86d 3336int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
aff063e2
JK		 3337{
3338 unsigned int total, fsmeta;
577e3495
JK		 3339 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
3340 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2040fce8 3341 unsigned int ovp_segments, reserved_segments;
15d3042a 3342 unsigned int main_segs, blocks_per_seg;
c77ec61c
CY		 3343 unsigned int sit_segs, nat_segs;
3344 unsigned int sit_bitmap_size, nat_bitmap_size;
3345 unsigned int log_blocks_per_seg;
9dc956b2 3346 unsigned int segment_count_main;
e494c2f9 3347 unsigned int cp_pack_start_sum, cp_payload;
7b63f72f
CY		 3348 block_t user_block_count, valid_user_blocks;
3349 block_t avail_node_count, valid_node_count;
65ddf656 3350 unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks;
042be0f8 3351 int i, j;
aff063e2
JK		 3352
3353 total = le32_to_cpu(raw_super->segment_count);
3354 fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
c77ec61c
CY		 3355 sit_segs = le32_to_cpu(raw_super->segment_count_sit);
3356 fsmeta += sit_segs;
3357 nat_segs = le32_to_cpu(raw_super->segment_count_nat);
3358 fsmeta += nat_segs;
aff063e2
JK		 3359 fsmeta += le32_to_cpu(ckpt->rsvd_segment_count);
3360 fsmeta += le32_to_cpu(raw_super->segment_count_ssa);
3361
6bacf52f 3362 if (unlikely(fsmeta >= total))
aff063e2 3363 return 1;
577e3495 3364
2040fce8
JK		 3365 ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
3366 reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count);
3367
a7d9fe3c
JK		 3368 if (!f2fs_sb_has_readonly(sbi) &&
3369 unlikely(fsmeta < F2FS_MIN_META_SEGMENTS ||
2040fce8 3370 ovp_segments == 0 || reserved_segments == 0)) {
dcbb4c10 3371 f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
2040fce8
JK		 3372 return 1;
3373 }
9dc956b2 3374 user_block_count = le64_to_cpu(ckpt->user_block_count);
a7d9fe3c
JK		 3375 segment_count_main = le32_to_cpu(raw_super->segment_count_main) +
3376 (f2fs_sb_has_readonly(sbi) ? 1 : 0);
9dc956b2
CY		 3377 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3378 if (!user_block_count || user_block_count >=
3379 segment_count_main << log_blocks_per_seg) {
dcbb4c10
JP		 3380 f2fs_err(sbi, "Wrong user_block_count: %u",
3381 user_block_count);
9dc956b2
CY		 3382 return 1;
3383 }
3384
7b63f72f
CY		 3385 valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
3386 if (valid_user_blocks > user_block_count) {
dcbb4c10
JP		 3387 f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
3388 valid_user_blocks, user_block_count);
7b63f72f
CY		 3389 return 1;
3390 }
3391
3392 valid_node_count = le32_to_cpu(ckpt->valid_node_count);
27cae0bc 3393 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
7b63f72f 3394 if (valid_node_count > avail_node_count) {
dcbb4c10
JP		 3395 f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
3396 valid_node_count, avail_node_count);
7b63f72f
CY		 3397 return 1;
3398 }
3399
15d3042a
JQ		 3400 main_segs = le32_to_cpu(raw_super->segment_count_main);
3401 blocks_per_seg = sbi->blocks_per_seg;
3402
3403 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
3404 if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
3405 le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
3406 return 1;
a7d9fe3c
JK		 3407
3408 if (f2fs_sb_has_readonly(sbi))
3409 goto check_data;
3410
042be0f8
CY		 3411 for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
3412 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3413 le32_to_cpu(ckpt->cur_node_segno[j])) {
dcbb4c10
JP		 3414 f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
3415 i, j,
3416 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3417 return 1;
3418 }
3419 }
15d3042a 3420 }
a7d9fe3c 3421check_data:
15d3042a
JQ		 3422 for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
3423 if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
3424 le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
3425 return 1;
a7d9fe3c
JK		 3426
3427 if (f2fs_sb_has_readonly(sbi))
3428 goto skip_cross;
3429
042be0f8
CY		 3430 for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
3431 if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
3432 le32_to_cpu(ckpt->cur_data_segno[j])) {
dcbb4c10
JP		 3433 f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
3434 i, j,
3435 le32_to_cpu(ckpt->cur_data_segno[i]));
042be0f8
CY		 3436 return 1;
3437 }
3438 }
3439 }
3440 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
1166c1f2 3441 for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
042be0f8
CY		 3442 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3443 le32_to_cpu(ckpt->cur_data_segno[j])) {
1166c1f2 3444 f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
dcbb4c10
JP		 3445 i, j,
3446 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3447 return 1;
3448 }
3449 }
15d3042a 3450 }
a7d9fe3c 3451skip_cross:
c77ec61c
CY		 3452 sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
3453 nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
c77ec61c
CY		 3454
3455 if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
3456 nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
dcbb4c10
JP		 3457 f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
3458 sit_bitmap_size, nat_bitmap_size);
c77ec61c
CY		 3459 return 1;
3460 }
e494c2f9
CY		 3461
3462 cp_pack_start_sum = __start_sum_addr(sbi);
3463 cp_payload = __cp_payload(sbi);
3464 if (cp_pack_start_sum < cp_payload + 1 ||
3465 cp_pack_start_sum > blocks_per_seg - 1 -
d0b9e42a 3466 NR_CURSEG_PERSIST_TYPE) {
dcbb4c10
JP		 3467 f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
3468 cp_pack_start_sum);
e494c2f9
CY		 3469 return 1;
3470 }
c77ec61c 3471
5dae2d39
CY		 3472 if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
3473 le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
2d008835
CY		 3474 f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
3475 "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
3476 "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
dcbb4c10 3477 le32_to_cpu(ckpt->checksum_offset));
5dae2d39
CY		 3478 return 1;
3479 }
3480
65ddf656
CY		 3481 nat_blocks = nat_segs << log_blocks_per_seg;
3482 nat_bits_bytes = nat_blocks / BITS_PER_BYTE;
3483 nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
3484 if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) &&
3485 (cp_payload + F2FS_CP_PACKS +
3486 NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
3487 f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
3488 cp_payload, nat_bits_blocks);
3489 return -EFSCORRUPTED;
3490 }
3491
1e968fdf 3492 if (unlikely(f2fs_cp_error(sbi))) {
dcbb4c10 3493 f2fs_err(sbi, "A bug case: need to run fsck");
577e3495
JK		 3494 return 1;
3495 }
aff063e2
JK		 3496 return 0;
3497}
3498
3499static void init_sb_info(struct f2fs_sb_info *sbi)
3500{
3501 struct f2fs_super_block *raw_super = sbi->raw_super;
089842de 3502 int i;
aff063e2
JK		 3503
3504 sbi->log_sectors_per_block =
3505 le32_to_cpu(raw_super->log_sectors_per_block);
3506 sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize);
3507 sbi->blocksize = 1 << sbi->log_blocksize;
3508 sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3509 sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg;
3510 sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3511 sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3512 sbi->total_sections = le32_to_cpu(raw_super->section_count);
3513 sbi->total_node_count =
3514 (le32_to_cpu(raw_super->segment_count_nat) / 2)
3515 * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK;
b9ec1094
YL		 3516 F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
3517 F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
3518 F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
5ec4e49f 3519 sbi->cur_victim_sec = NULL_SECNO;
e3080b01
CY		 3520 sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
3521 sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
b1c57c1c 3522 sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
e3080b01 3523 sbi->migration_granularity = sbi->segs_per_sec;
0f6b56ec 3524 sbi->seq_file_ra_mul = MIN_RA_MUL;
aff063e2 3525
ab9fa662 3526 sbi->dir_level = DEF_DIR_LEVEL;
6beceb54 3527 sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
d0239e1b 3528 sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
a7d10cf3
ST		 3529 sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
3530 sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
4354994f 3531 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
03f2c02d
JK		 3532 sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
3533 DEF_UMOUNT_DISCARD_TIMEOUT;
caf0047e 3534 clear_sbi_flag(sbi, SBI_NEED_FSCK);
2658e50d 3535
35782b23
JK		 3536 for (i = 0; i < NR_COUNT_TYPE; i++)
3537 atomic_set(&sbi->nr_pages[i], 0);
3538
c29fd0c0
CY		 3539 for (i = 0; i < META; i++)
3540 atomic_set(&sbi->wb_sync_req[i], 0);
687de7f1 3541
2658e50d
JK		 3542 INIT_LIST_HEAD(&sbi->s_list);
3543 mutex_init(&sbi->umount_mutex);
107a805d 3544 init_rwsem(&sbi->io_order_lock);
aaec2b1d 3545 spin_lock_init(&sbi->cp_lock);
1228b482
CY		 3546
3547 sbi->dirty_device = 0;
3548 spin_lock_init(&sbi->dev_lock);
d0d3f1b3 3549
846ae671 3550 init_rwsem(&sbi->sb_lock);
f5a53edc 3551 init_rwsem(&sbi->pin_sem);
aff063e2
JK		 3552}
3553
523be8a6
JK		 3554static int init_percpu_info(struct f2fs_sb_info *sbi)
3555{
35782b23 3556 int err;
41382ec4 3557
513c5f37
JK		 3558 err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
3559 if (err)
3560 return err;
3561
4a70e255 3562 err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
41382ec4 3563 GFP_KERNEL);
4a70e255
CY		 3564 if (err)
3565 percpu_counter_destroy(&sbi->alloc_valid_block_count);
3566
3567 return err;
523be8a6
JK		 3568}
3569
178053e2 3570#ifdef CONFIG_BLK_DEV_ZONED
de881df9
AR		 3571
3572struct f2fs_report_zones_args {
3573 struct f2fs_dev_info *dev;
3574 bool zone_cap_mismatch;
3575};
3576
d4100351 3577static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx,
de881df9 3578 void *data)
d4100351 3579{
de881df9
AR		 3580 struct f2fs_report_zones_args *rz_args = data;
3581
3582 if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
3583 return 0;
3584
3585 set_bit(idx, rz_args->dev->blkz_seq);
3586 rz_args->dev->zone_capacity_blocks[idx] = zone->capacity >>
3587 F2FS_LOG_SECTORS_PER_BLOCK;
3588 if (zone->len != zone->capacity && !rz_args->zone_cap_mismatch)
3589 rz_args->zone_cap_mismatch = true;
d4100351 3590
d4100351
CH		 3591 return 0;
3592}
3593
3c62be17 3594static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
178053e2 3595{
3c62be17 3596 struct block_device *bdev = FDEV(devi).bdev;
a782483c 3597 sector_t nr_sectors = bdev_nr_sectors(bdev);
de881df9 3598 struct f2fs_report_zones_args rep_zone_arg;
d4100351 3599 int ret;
178053e2 3600
7beb01f7 3601 if (!f2fs_sb_has_blkzoned(sbi))
178053e2
DLM		 3602 return 0;
3603
3c62be17 3604 if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
f99e8648 3605 SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)))
3c62be17 3606 return -EINVAL;
f99e8648 3607 sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev));
3c62be17
JK		 3608 if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz !=
3609 __ilog2_u32(sbi->blocks_per_blkz))
3610 return -EINVAL;
178053e2 3611 sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz);
3c62be17
JK		 3612 FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >>
3613 sbi->log_blocks_per_blkz;
f99e8648 3614 if (nr_sectors & (bdev_zone_sectors(bdev) - 1))
3c62be17 3615 FDEV(devi).nr_blkz++;
178053e2 3616
0b6d4ca0 3617 FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
95175daf
DLM		 3618 BITS_TO_LONGS(FDEV(devi).nr_blkz)
3619 * sizeof(unsigned long),
3620 GFP_KERNEL);
3621 if (!FDEV(devi).blkz_seq)
178053e2
DLM		 3622 return -ENOMEM;
3623
de881df9
AR		 3624 /* Get block zones type and zone-capacity */
3625 FDEV(devi).zone_capacity_blocks = f2fs_kzalloc(sbi,
3626 FDEV(devi).nr_blkz * sizeof(block_t),
3627 GFP_KERNEL);
3628 if (!FDEV(devi).zone_capacity_blocks)
3629 return -ENOMEM;
3630
3631 rep_zone_arg.dev = &FDEV(devi);
3632 rep_zone_arg.zone_cap_mismatch = false;
3633
d4100351 3634 ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb,
de881df9 3635 &rep_zone_arg);
d4100351
CH		 3636 if (ret < 0)
3637 return ret;
178053e2 3638
de881df9
AR		 3639 if (!rep_zone_arg.zone_cap_mismatch) {
3640 kfree(FDEV(devi).zone_capacity_blocks);
3641 FDEV(devi).zone_capacity_blocks = NULL;
3642 }
3643
d4100351 3644 return 0;
178053e2
DLM		 3645}
3646#endif
3647
9076a75f
GZ		 3648/*
3649 * Read f2fs raw super block.
2b39e907
SL		 3650 * Because we have two copies of super block, so read both of them
3651 * to get the first valid one. If any one of them is broken, we pass
3652 * them recovery flag back to the caller.
9076a75f 3653 */
df728b0f 3654static int read_raw_super_block(struct f2fs_sb_info *sbi,
9076a75f 3655 struct f2fs_super_block **raw_super,
e8240f65 3656 int *valid_super_block, int *recovery)
14d7e9de 3657{
df728b0f 3658 struct super_block *sb = sbi->sb;
2b39e907 3659 int block;
e8240f65 3660 struct buffer_head *bh;
fd694733 3661 struct f2fs_super_block *super;
da554e48 3662 int err = 0;
14d7e9de 3663
b39f0de2
YH		 3664 super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL);
3665 if (!super)
3666 return -ENOMEM;
2b39e907
SL		 3667
3668 for (block = 0; block < 2; block++) {
3669 bh = sb_bread(sb, block);
3670 if (!bh) {
dcbb4c10
JP		 3671 f2fs_err(sbi, "Unable to read %dth superblock",
3672 block + 1);
2b39e907 3673 err = -EIO;
ed352042 3674 *recovery = 1;
2b39e907
SL		 3675 continue;
3676 }
14d7e9de 3677
2b39e907 3678 /* sanity checking of raw super */
38fb6d0e
IZ		 3679 err = sanity_check_raw_super(sbi, bh);
3680 if (err) {
dcbb4c10
JP		 3681 f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
3682 block + 1);
2b39e907 3683 brelse(bh);
ed352042 3684 *recovery = 1;
2b39e907
SL		 3685 continue;
3686 }
14d7e9de 3687
2b39e907 3688 if (!*raw_super) {
fd694733
JK		 3689 memcpy(super, bh->b_data + F2FS_SUPER_OFFSET,
3690 sizeof(*super));
2b39e907
SL		 3691 *valid_super_block = block;
3692 *raw_super = super;
3693 }
3694 brelse(bh);
da554e48 3695 }
3696
da554e48 3697 /* No valid superblock */
2b39e907 3698 if (!*raw_super)
742532d1 3699 kfree(super);
2b39e907
SL		 3700 else
3701 err = 0;
da554e48 3702
2b39e907 3703 return err;
14d7e9de 3704}
3705
fd694733 3706int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
26d815ad 3707{
5d909cdb 3708 struct buffer_head *bh;
d440c52d 3709 __u32 crc = 0;
26d815ad
JK		 3710 int err;
3711
df728b0f
JK		 3712 if ((recover && f2fs_readonly(sbi->sb)) ||
3713 bdev_read_only(sbi->sb->s_bdev)) {
3714 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
f2353d7b 3715 return -EROFS;
df728b0f 3716 }
f2353d7b 3717
d440c52d 3718 /* we should update superblock crc here */
7beb01f7 3719 if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
d440c52d
JZ		 3720 crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
3721 offsetof(struct f2fs_super_block, crc));
3722 F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
3723 }
3724
fd694733 3725 /* write back-up superblock first */
0964fc1a 3726 bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
5d909cdb
JK		 3727 if (!bh)
3728 return -EIO;
fd694733 3729 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
5d909cdb 3730 brelse(bh);
c5bda1c8
CY		 3731
3732 /* if we are in recovery path, skip writing valid superblock */
3733 if (recover || err)
5d909cdb 3734 return err;
26d815ad
JK		 3735
3736 /* write current valid superblock */
0964fc1a 3737 bh = sb_bread(sbi->sb, sbi->valid_super_block);
fd694733
JK		 3738 if (!bh)
3739 return -EIO;
3740 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
3741 brelse(bh);
3742 return err;
26d815ad
JK		 3743}
3744
3c62be17
JK		 3745static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
3746{
3747 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
7bb3a371 3748 unsigned int max_devices = MAX_DEVICES;
3c62be17
JK		 3749 int i;
3750
7bb3a371
MS		 3751 /* Initialize single device information */
3752 if (!RDEV(0).path[0]) {
3753 if (!bdev_is_zoned(sbi->sb->s_bdev))
3c62be17 3754 return 0;
7bb3a371
MS		 3755 max_devices = 1;
3756 }
3c62be17 3757
7bb3a371
MS		 3758 /*
3759 * Initialize multiple devices information, or single
3760 * zoned block device information.
3761 */
026f0507
KC		 3762 sbi->devs = f2fs_kzalloc(sbi,
3763 array_size(max_devices,
3764 sizeof(struct f2fs_dev_info)),
3765 GFP_KERNEL);
7bb3a371
MS		 3766 if (!sbi->devs)
3767 return -ENOMEM;
3c62be17 3768
7bb3a371 3769 for (i = 0; i < max_devices; i++) {
3c62be17 3770
7bb3a371
MS		 3771 if (i > 0 && !RDEV(i).path[0])
3772 break;
3773
3774 if (max_devices == 1) {
3775 /* Single zoned block device mount */
3776 FDEV(0).bdev =
3777 blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev,
3c62be17 3778 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371
MS		 3779 } else {
3780 /* Multi-device mount */
3781 memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN);
3782 FDEV(i).total_segments =
3783 le32_to_cpu(RDEV(i).total_segments);
3784 if (i == 0) {
3785 FDEV(i).start_blk = 0;
3786 FDEV(i).end_blk = FDEV(i).start_blk +
3787 (FDEV(i).total_segments <<
3788 sbi->log_blocks_per_seg) - 1 +
3789 le32_to_cpu(raw_super->segment0_blkaddr);
3790 } else {
3791 FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
3792 FDEV(i).end_blk = FDEV(i).start_blk +
3793 (FDEV(i).total_segments <<
3794 sbi->log_blocks_per_seg) - 1;
3795 }
3796 FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path,
3c62be17 3797 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371 3798 }
3c62be17
JK		 3799 if (IS_ERR(FDEV(i).bdev))
3800 return PTR_ERR(FDEV(i).bdev);
3801
3802 /* to release errored devices */
3803 sbi->s_ndevs = i + 1;
3804
3805#ifdef CONFIG_BLK_DEV_ZONED
3806 if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM &&
7beb01f7 3807 !f2fs_sb_has_blkzoned(sbi)) {
833dcd35 3808 f2fs_err(sbi, "Zoned block device feature not enabled");
3c62be17
JK		 3809 return -EINVAL;
3810 }
3811 if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) {
3812 if (init_blkz_info(sbi, i)) {
dcbb4c10 3813 f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
3c62be17
JK		 3814 return -EINVAL;
3815 }
7bb3a371
MS		 3816 if (max_devices == 1)
3817 break;
dcbb4c10
JP		 3818 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)",
3819 i, FDEV(i).path,
3820 FDEV(i).total_segments,
3821 FDEV(i).start_blk, FDEV(i).end_blk,
3822 bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ?
3823 "Host-aware" : "Host-managed");
3c62be17
JK		 3824 continue;
3825 }
3826#endif
dcbb4c10
JP		 3827 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
3828 i, FDEV(i).path,
3829 FDEV(i).total_segments,
3830 FDEV(i).start_blk, FDEV(i).end_blk);
3831 }
3832 f2fs_info(sbi,
3833 "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi));
3c62be17
JK		 3834 return 0;
3835}
3836
5aba5430
DR		 3837static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
3838{
3839#ifdef CONFIG_UNICODE
eca4873e 3840 if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) {
5aba5430
DR		 3841 const struct f2fs_sb_encodings *encoding_info;
3842 struct unicode_map *encoding;
3843 __u16 encoding_flags;
3844
5aba5430
DR		 3845 if (f2fs_sb_read_encoding(sbi->raw_super, &encoding_info,
3846 &encoding_flags)) {
3847 f2fs_err(sbi,
3848 "Encoding requested by superblock is unknown");
3849 return -EINVAL;
3850 }
3851
3852 encoding = utf8_load(encoding_info->version);
3853 if (IS_ERR(encoding)) {
3854 f2fs_err(sbi,
3855 "can't mount with superblock charset: %s-%s "
3856 "not supported by the kernel. flags: 0x%x.",
3857 encoding_info->name, encoding_info->version,
3858 encoding_flags);
3859 return PTR_ERR(encoding);
3860 }
3861 f2fs_info(sbi, "Using encoding defined by superblock: "
3862 "%s-%s with flags 0x%hx", encoding_info->name,
3863 encoding_info->version?:"\b", encoding_flags);
3864
eca4873e
DR		 3865 sbi->sb->s_encoding = encoding;
3866 sbi->sb->s_encoding_flags = encoding_flags;
5aba5430
DR		 3867 }
3868#else
3869 if (f2fs_sb_has_casefold(sbi)) {
3870 f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
3871 return -EINVAL;
3872 }
3873#endif
3874 return 0;
3875}
3876
84b89e5d
JK		 3877static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
3878{
3879 struct f2fs_sm_info *sm_i = SM_I(sbi);
3880
3881 /* adjust parameters according to the volume size */
3882 if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) {
63189b78 3883 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
4f993264
CY		 3884 if (f2fs_block_unit_discard(sbi))
3885 sm_i->dcc_info->discard_granularity = 1;
84b89e5d
JK		 3886 sm_i->ipu_policy = 1 << F2FS_IPU_FORCE;
3887 }
4cac90d5
CY		 3888
3889 sbi->readdir_ra = 1;
84b89e5d
JK		 3890}
3891
aff063e2
JK		 3892static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
3893{
3894 struct f2fs_sb_info *sbi;
da554e48 3895 struct f2fs_super_block *raw_super;
aff063e2 3896 struct inode *root;
99e3e858 3897 int err;
aa2c8c43 3898 bool skip_recovery = false, need_fsck = false;
dabc4a5c 3899 char *options = NULL;
e8240f65 3900 int recovery, i, valid_super_block;
8f1dbbbb 3901 struct curseg_info *seg_i;
aa2c8c43 3902 int retry_cnt = 1;
aff063e2 3903
ed2e621a 3904try_onemore:
da554e48 3905 err = -EINVAL;
3906 raw_super = NULL;
e8240f65 3907 valid_super_block = -1;
da554e48 3908 recovery = 0;
3909
aff063e2
JK		 3910 /* allocate memory for f2fs-specific super block info */
3911 sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
3912 if (!sbi)
3913 return -ENOMEM;
3914
df728b0f
JK		 3915 sbi->sb = sb;
3916
43b6573b
KM		 3917 /* Load the checksum driver */
3918 sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
3919 if (IS_ERR(sbi->s_chksum_driver)) {
dcbb4c10 3920 f2fs_err(sbi, "Cannot load crc32 driver.");
43b6573b
KM		 3921 err = PTR_ERR(sbi->s_chksum_driver);
3922 sbi->s_chksum_driver = NULL;
3923 goto free_sbi;
3924 }
3925
ff9234ad 3926 /* set a block size */
6bacf52f 3927 if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
dcbb4c10 3928 f2fs_err(sbi, "unable to set blocksize");
aff063e2 3929 goto free_sbi;
a07ef784 3930 }
aff063e2 3931
df728b0f 3932 err = read_raw_super_block(sbi, &raw_super, &valid_super_block,
e8240f65 3933 &recovery);
9076a75f
GZ		 3934 if (err)
3935 goto free_sbi;
3936
5fb08372 3937 sb->s_fs_info = sbi;
52763a4b
JK		 3938 sbi->raw_super = raw_super;
3939
704956ec 3940 /* precompute checksum seed for metadata */
7beb01f7 3941 if (f2fs_sb_has_inode_chksum(sbi))
704956ec
CY		 3942 sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
3943 sizeof(raw_super->uuid));
3944
498c5e9f 3945 default_options(sbi);
aff063e2 3946 /* parse mount options */
dabc4a5c
JK		 3947 options = kstrdup((const char *)data, GFP_KERNEL);
3948 if (data && !options) {
3949 err = -ENOMEM;
aff063e2 3950 goto free_sb_buf;
dabc4a5c
JK		 3951 }
3952
ed318a6c 3953 err = parse_options(sb, options, false);
dabc4a5c
JK		 3954 if (err)
3955 goto free_options;
aff063e2 3956
6d1451bf 3957 sb->s_maxbytes = max_file_blocks(NULL) <<
e0afc4d6 3958 le32_to_cpu(raw_super->log_blocksize);
aff063e2 3959 sb->s_max_links = F2FS_LINK_MAX;
aff063e2 3960
5aba5430
DR		 3961 err = f2fs_setup_casefold(sbi);
3962 if (err)
3963 goto free_options;
3964
0abd675e
CY		 3965#ifdef CONFIG_QUOTA
3966 sb->dq_op = &f2fs_quota_operations;
bc88ac96 3967 sb->s_qcop = &f2fs_quotactl_ops;
5c57132e 3968 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
292c196a 3969
7beb01f7 3970 if (f2fs_sb_has_quota_ino(sbi)) {
292c196a
CY		 3971 for (i = 0; i < MAXQUOTAS; i++) {
3972 if (f2fs_qf_ino(sbi->sb, i))
3973 sbi->nquota_files++;
3974 }
3975 }
0abd675e
CY		 3976#endif
3977
aff063e2 3978 sb->s_op = &f2fs_sops;
643fa961 3979#ifdef CONFIG_FS_ENCRYPTION
0b81d077 3980 sb->s_cop = &f2fs_cryptops;
95ae251f
EB		 3981#endif
3982#ifdef CONFIG_FS_VERITY
3983 sb->s_vop = &f2fs_verityops;
ffcc4182 3984#endif
aff063e2
JK		 3985 sb->s_xattr = f2fs_xattr_handlers;
3986 sb->s_export_op = &f2fs_export_ops;
3987 sb->s_magic = F2FS_SUPER_MAGIC;
aff063e2 3988 sb->s_time_gran = 1;
1751e8a6
LT		 3989 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
3990 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
85787090 3991 memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid));
578c6478 3992 sb->s_iflags |= SB_I_CGROUPWB;
aff063e2
JK		 3993
3994 /* init f2fs-specific super block info */
e8240f65 3995 sbi->valid_super_block = valid_super_block;
fb24fea7 3996 init_rwsem(&sbi->gc_lock);
853137ce 3997 mutex_init(&sbi->writepages);
8769918b 3998 init_rwsem(&sbi->cp_global_sem);
b3582c68 3999 init_rwsem(&sbi->node_write);
59c9081b 4000 init_rwsem(&sbi->node_change);
315df839
JK		 4001
4002 /* disallow all the data/node/meta page writes */
4003 set_sbi_flag(sbi, SBI_POR_DOING);
aff063e2 4004 spin_lock_init(&sbi->stat_lock);
971767ca 4005
458e6197 4006 for (i = 0; i < NR_PAGE_TYPE; i++) {
5f029c04 4007 int n = (i == META) ? 1 : NR_TEMP_TYPE;
a912b54d
JK		 4008 int j;
4009
c8606593
KC		 4010 sbi->write_io[i] =
4011 f2fs_kmalloc(sbi,
4012 array_size(n,
4013 sizeof(struct f2fs_bio_info)),
4014 GFP_KERNEL);
b63def91
CJ		 4015 if (!sbi->write_io[i]) {
4016 err = -ENOMEM;
0b2103e8 4017 goto free_bio_info;
b63def91 4018 }
a912b54d
JK		 4019
4020 for (j = HOT; j < n; j++) {
4021 init_rwsem(&sbi->write_io[i][j].io_rwsem);
4022 sbi->write_io[i][j].sbi = sbi;
4023 sbi->write_io[i][j].bio = NULL;
fb830fc5
CY		 4024 spin_lock_init(&sbi->write_io[i][j].io_lock);
4025 INIT_LIST_HEAD(&sbi->write_io[i][j].io_list);
0b20fcec
CY		 4026 INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list);
4027 init_rwsem(&sbi->write_io[i][j].bio_list_lock);
a912b54d 4028 }
458e6197 4029 }
971767ca 4030
b873b798 4031 init_rwsem(&sbi->cp_rwsem);
db6ec53b 4032 init_rwsem(&sbi->quota_sem);
fb51b5ef 4033 init_waitqueue_head(&sbi->cp_wait);
aff063e2
JK		 4034 init_sb_info(sbi);
4035
52118743 4036 err = f2fs_init_iostat(sbi);
523be8a6 4037 if (err)
d7997e63 4038 goto free_bio_info;
523be8a6 4039
523be8a6
JK		 4040 err = init_percpu_info(sbi);
4041 if (err)
a4b68176 4042 goto free_iostat;
523be8a6 4043
c72db71e 4044 if (F2FS_IO_ALIGNED(sbi)) {
0a595eba 4045 sbi->write_io_dummy =
a3ebfe4f 4046 mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
1727f317
CY		 4047 if (!sbi->write_io_dummy) {
4048 err = -ENOMEM;
d7997e63 4049 goto free_percpu;
1727f317 4050 }
0a595eba
JK		 4051 }
4052
a999150f
CY		 4053 /* init per sbi slab cache */
4054 err = f2fs_init_xattr_caches(sbi);
4055 if (err)
4056 goto free_io_dummy;
31083031
CY		 4057 err = f2fs_init_page_array_cache(sbi);
4058 if (err)
4059 goto free_xattr_cache;
a999150f 4060
aff063e2
JK		 4061 /* get an inode for meta space */
4062 sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
4063 if (IS_ERR(sbi->meta_inode)) {
dcbb4c10 4064 f2fs_err(sbi, "Failed to read F2FS meta data inode");
aff063e2 4065 err = PTR_ERR(sbi->meta_inode);
31083031 4066 goto free_page_array_cache;
aff063e2
JK		 4067 }
4068
4d57b86d 4069 err = f2fs_get_valid_checkpoint(sbi);
a07ef784 4070 if (err) {
dcbb4c10 4071 f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
aff063e2 4072 goto free_meta_inode;
a07ef784 4073 }
aff063e2 4074
af033b2a
CY		 4075 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
4076 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
db610a64
JK		 4077 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
4078 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
4079 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
4080 }
af033b2a 4081
04f0b2ea
QS		 4082 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
4083 set_sbi_flag(sbi, SBI_NEED_FSCK);
4084
3c62be17
JK		 4085 /* Initialize device list */
4086 err = f2fs_scan_devices(sbi);
4087 if (err) {
dcbb4c10 4088 f2fs_err(sbi, "Failed to find devices");
3c62be17
JK		 4089 goto free_devices;
4090 }
4091
4c8ff709
CY		 4092 err = f2fs_init_post_read_wq(sbi);
4093 if (err) {
4094 f2fs_err(sbi, "Failed to initialize post read workqueue");
4095 goto free_devices;
4096 }
4097
aff063e2
JK		 4098 sbi->total_valid_node_count =
4099 le32_to_cpu(sbi->ckpt->valid_node_count);
513c5f37
JK		 4100 percpu_counter_set(&sbi->total_valid_inode_count,
4101 le32_to_cpu(sbi->ckpt->valid_inode_count));
aff063e2
JK		 4102 sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count);
4103 sbi->total_valid_block_count =
4104 le64_to_cpu(sbi->ckpt->valid_block_count);
4105 sbi->last_valid_block_count = sbi->total_valid_block_count;
daeb433e 4106 sbi->reserved_blocks = 0;
80d42145 4107 sbi->current_reserved_blocks = 0;
7e65be49 4108 limit_reserve_root(sbi);
1ae18f71 4109 adjust_unusable_cap_perc(sbi);
41382ec4 4110
c227f912
CY		 4111 for (i = 0; i < NR_INODE_TYPE; i++) {
4112 INIT_LIST_HEAD(&sbi->inode_list[i]);
4113 spin_lock_init(&sbi->inode_lock[i]);
4114 }
040d2bb3 4115 mutex_init(&sbi->flush_lock);
aff063e2 4116
4d57b86d 4117 f2fs_init_extent_cache_info(sbi);
1dcc336b 4118
4d57b86d 4119 f2fs_init_ino_entry_info(sbi);
aff063e2 4120
50fa53ec
CY		 4121 f2fs_init_fsync_node_info(sbi);
4122
261eeb9c
DJ		 4123 /* setup checkpoint request control and start checkpoint issue thread */
4124 f2fs_init_ckpt_req_control(sbi);
3f7070b0 4125 if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) &&
261eeb9c
DJ		 4126 test_opt(sbi, MERGE_CHECKPOINT)) {
4127 err = f2fs_start_ckpt_thread(sbi);
4128 if (err) {
4129 f2fs_err(sbi,
4130 "Failed to start F2FS issue_checkpoint_thread (%d)",
4131 err);
4132 goto stop_ckpt_thread;
4133 }
4134 }
4135
aff063e2 4136 /* setup f2fs internal modules */
4d57b86d 4137 err = f2fs_build_segment_manager(sbi);
a07ef784 4138 if (err) {
dcbb4c10
JP		 4139 f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
4140 err);
aff063e2 4141 goto free_sm;
a07ef784 4142 }
4d57b86d 4143 err = f2fs_build_node_manager(sbi);
a07ef784 4144 if (err) {
dcbb4c10
JP		 4145 f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
4146 err);
aff063e2 4147 goto free_nm;
a07ef784 4148 }
aff063e2 4149
8f1dbbbb 4150 /* For write statistics */
3a0a9cbc 4151 sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
8f1dbbbb
SL		 4152
4153 /* Read accumulated write IO statistics if exists */
4154 seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
4155 if (__exist_node_summaries(sbi))
4156 sbi->kbytes_written =
b2dde6fc 4157 le64_to_cpu(seg_i->journal->info.kbytes_written);
8f1dbbbb 4158
4d57b86d 4159 f2fs_build_gc_manager(sbi);
aff063e2 4160
60aa4d55
ST		 4161 err = f2fs_build_stats(sbi);
4162 if (err)
4163 goto free_nm;
4164
aff063e2
JK		 4165 /* get an inode for node space */
4166 sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
4167 if (IS_ERR(sbi->node_inode)) {
dcbb4c10 4168 f2fs_err(sbi, "Failed to read node inode");
aff063e2 4169 err = PTR_ERR(sbi->node_inode);
60aa4d55 4170 goto free_stats;
aff063e2
JK		 4171 }
4172
aff063e2
JK		 4173 /* read root inode and dentry */
4174 root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
4175 if (IS_ERR(root)) {
dcbb4c10 4176 f2fs_err(sbi, "Failed to read root inode");
aff063e2 4177 err = PTR_ERR(root);
60aa4d55 4178 goto free_node_inode;
aff063e2 4179 }
bcbfbd60
CY		 4180 if (!S_ISDIR(root->i_mode) || !root->i_blocks ||
4181 !root->i_size || !root->i_nlink) {
9d847950 4182 iput(root);
8f99a946 4183 err = -EINVAL;
60aa4d55 4184 goto free_node_inode;
8f99a946 4185 }
aff063e2
JK		 4186
4187 sb->s_root = d_make_root(root); /* allocate root dentry */
4188 if (!sb->s_root) {
4189 err = -ENOMEM;
025cdb16 4190 goto free_node_inode;
aff063e2
JK		 4191 }
4192
6ce19aff 4193 err = f2fs_init_compress_inode(sbi);
b59d0bae 4194 if (err)
a398101a 4195 goto free_root_inode;
b59d0bae 4196
6ce19aff
CY		 4197 err = f2fs_register_sysfs(sbi);
4198 if (err)
4199 goto free_compress_inode;
4200
ea676733 4201#ifdef CONFIG_QUOTA
76cf05d7 4202 /* Enable quota usage during mount */
7beb01f7 4203 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
ea676733 4204 err = f2fs_enable_quotas(sb);
730746ce 4205 if (err)
dcbb4c10 4206 f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
ea676733
JK		 4207 }
4208#endif
7a88ddb5 4209 /* if there are any orphan inodes, free them */
4d57b86d 4210 err = f2fs_recover_orphan_inodes(sbi);
4b2414d0 4211 if (err)
ea676733 4212 goto free_meta;
4b2414d0 4213
4354994f 4214 if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
aa2c8c43 4215 goto reset_checkpoint;
4354994f 4216
6437d1b0 4217 /* recover fsynced data */
a9117eca
CY		 4218 if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
4219 !test_opt(sbi, NORECOVERY)) {
081d78c2
JK		 4220 /*
4221 * mount should be failed, when device has readonly mode, and
4222 * previous checkpoint was not done by clean system shutdown.
4223 */
b61af314 4224 if (f2fs_hw_is_readonly(sbi)) {
23738e74
CY		 4225 if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4226 err = f2fs_recover_fsync_data(sbi, true);
4227 if (err > 0) {
4228 err = -EROFS;
4229 f2fs_err(sbi, "Need to recover fsync data, but "
4230 "write access unavailable, please try "
4231 "mount w/ disable_roll_forward or norecovery");
4232 }
4233 if (err < 0)
4234 goto free_meta;
4235 }
4236 f2fs_info(sbi, "write access unavailable, skipping recovery");
b61af314 4237 goto reset_checkpoint;
081d78c2 4238 }
2adc3505
CY		 4239
4240 if (need_fsck)
4241 set_sbi_flag(sbi, SBI_NEED_FSCK);
4242
aa2c8c43
CY		 4243 if (skip_recovery)
4244 goto reset_checkpoint;
a468f0ef 4245
4d57b86d 4246 err = f2fs_recover_fsync_data(sbi, false);
6781eabb 4247 if (err < 0) {
aa2c8c43
CY		 4248 if (err != -ENOMEM)
4249 skip_recovery = true;
2adc3505 4250 need_fsck = true;
dcbb4c10
JP		 4251 f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
4252 err);
4b2414d0 4253 goto free_meta;
ed2e621a 4254 }
6781eabb 4255 } else {
4d57b86d 4256 err = f2fs_recover_fsync_data(sbi, true);
6781eabb
JK		 4257
4258 if (!f2fs_readonly(sb) && err > 0) {
4259 err = -EINVAL;
dcbb4c10 4260 f2fs_err(sbi, "Need to recover fsync data");
ea676733 4261 goto free_meta;
6781eabb 4262 }
6437d1b0 4263 }
d508c94e
SK		 4264
4265 /*
4266 * If the f2fs is not readonly and fsync data recovery succeeds,
4267 * check zoned block devices' write pointer consistency.
4268 */
4269 if (!err && !f2fs_readonly(sb) && f2fs_sb_has_blkzoned(sbi)) {
4270 err = f2fs_check_write_pointer(sbi);
4271 if (err)
4272 goto free_meta;
4273 }
4274
aa2c8c43 4275reset_checkpoint:
093749e2
CY		 4276 f2fs_init_inmem_curseg(sbi);
4277
4d57b86d 4278 /* f2fs_recover_fsync_data() cleared this already */
315df839 4279 clear_sbi_flag(sbi, SBI_POR_DOING);
b59d0bae 4280
4354994f
DR		 4281 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
4282 err = f2fs_disable_checkpoint(sbi);
4283 if (err)
812a9597 4284 goto sync_free_meta;
4354994f
DR		 4285 } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
4286 f2fs_enable_checkpoint(sbi);
4287 }
4288
6437d1b0
JK		 4289 /*
4290 * If filesystem is not mounted as read-only then
4291 * do start the gc_thread.
4292 */
5911d2d1
CY		 4293 if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF ||
4294 test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) {
6437d1b0 4295 /* After POR, we can run background GC thread.*/
4d57b86d 4296 err = f2fs_start_gc_thread(sbi);
6437d1b0 4297 if (err)
812a9597 4298 goto sync_free_meta;
6437d1b0 4299 }
5222595d 4300 kvfree(options);
da554e48 4301
4302 /* recover broken superblock */
f2353d7b 4303 if (recovery) {
41214b3c 4304 err = f2fs_commit_super(sbi, true);
dcbb4c10
JP		 4305 f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
4306 sbi->valid_super_block ? 1 : 2, err);
da554e48 4307 }
4308
bae01eda
CY		 4309 f2fs_join_shrinker(sbi);
4310
84b89e5d
JK		 4311 f2fs_tuning_parameters(sbi);
4312
dcbb4c10
JP		 4313 f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
4314 cur_cp_version(F2FS_CKPT(sbi)));
6beceb54 4315 f2fs_update_time(sbi, CP_TIME);
d0239e1b 4316 f2fs_update_time(sbi, REQ_TIME);
db610a64 4317 clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
aff063e2 4318 return 0;
6437d1b0 4319
812a9597
JK		 4320sync_free_meta:
4321 /* safe to flush all the data */
4322 sync_filesystem(sbi->sb);
aa2c8c43 4323 retry_cnt = 0;
812a9597 4324
4b2414d0 4325free_meta:
ea676733 4326#ifdef CONFIG_QUOTA
26b5a079 4327 f2fs_truncate_quota_inode_pages(sb);
7beb01f7 4328 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
ea676733
JK		 4329 f2fs_quota_off_umount(sbi->sb);
4330#endif
4b2414d0 4331 /*
4d57b86d 4332 * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
4b2414d0 4333 * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
4d57b86d
CY		 4334 * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
4335 * falls into an infinite loop in f2fs_sync_meta_pages().
4b2414d0
CY		 4336 */
4337 truncate_inode_pages_final(META_MAPPING(sbi));
812a9597
JK		 4338 /* evict some inodes being cached by GC */
4339 evict_inodes(sb);
dc6b2055 4340 f2fs_unregister_sysfs(sbi);
6ce19aff
CY		 4341free_compress_inode:
4342 f2fs_destroy_compress_inode(sbi);
aff063e2
JK		 4343free_root_inode:
4344 dput(sb->s_root);
4345 sb->s_root = NULL;
4346free_node_inode:
4d57b86d 4347 f2fs_release_ino_entry(sbi, true);
bae01eda 4348 truncate_inode_pages_final(NODE_MAPPING(sbi));
aff063e2 4349 iput(sbi->node_inode);
7c77bf7d 4350 sbi->node_inode = NULL;
60aa4d55
ST		 4351free_stats:
4352 f2fs_destroy_stats(sbi);
aff063e2 4353free_nm:
4d57b86d 4354 f2fs_destroy_node_manager(sbi);
aff063e2 4355free_sm:
4d57b86d 4356 f2fs_destroy_segment_manager(sbi);
4c8ff709 4357 f2fs_destroy_post_read_wq(sbi);
261eeb9c
DJ		 4358stop_ckpt_thread:
4359 f2fs_stop_ckpt_thread(sbi);
3c62be17
JK		 4360free_devices:
4361 destroy_device_list(sbi);
5222595d 4362 kvfree(sbi->ckpt);
aff063e2
JK		 4363free_meta_inode:
4364 make_bad_inode(sbi->meta_inode);
4365 iput(sbi->meta_inode);
7c77bf7d 4366 sbi->meta_inode = NULL;
31083031
CY		 4367free_page_array_cache:
4368 f2fs_destroy_page_array_cache(sbi);
a999150f
CY		 4369free_xattr_cache:
4370 f2fs_destroy_xattr_caches(sbi);
0a595eba
JK		 4371free_io_dummy:
4372 mempool_destroy(sbi->write_io_dummy);
d7997e63
CY		 4373free_percpu:
4374 destroy_percpu_info(sbi);
a4b68176
DJ		 4375free_iostat:
4376 f2fs_destroy_iostat(sbi);
d7997e63 4377free_bio_info:
a912b54d 4378 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 4379 kvfree(sbi->write_io[i]);
5aba5430
DR		 4380
4381#ifdef CONFIG_UNICODE
eca4873e 4382 utf8_unload(sb->s_encoding);
89ff6005 4383 sb->s_encoding = NULL;
5aba5430 4384#endif
d7997e63 4385free_options:
4b2414d0
CY		 4386#ifdef CONFIG_QUOTA
4387 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 4388 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 4389#endif
ac4acb1f 4390 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
5222595d 4391 kvfree(options);
aff063e2 4392free_sb_buf:
742532d1 4393 kfree(raw_super);
aff063e2 4394free_sbi:
43b6573b
KM		 4395 if (sbi->s_chksum_driver)
4396 crypto_free_shash(sbi->s_chksum_driver);
742532d1 4397 kfree(sbi);
ed2e621a
JK		 4398
4399 /* give only one another chance */
aa2c8c43
CY		 4400 if (retry_cnt > 0 && skip_recovery) {
4401 retry_cnt--;
ed2e621a
JK		 4402 shrink_dcache_sb(sb);
4403 goto try_onemore;
4404 }
aff063e2
JK		 4405 return err;
4406}
4407
4408static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags,
4409 const char *dev_name, void *data)
4410{
4411 return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super);
4412}
4413
30a5537f
JK		 4414static void kill_f2fs_super(struct super_block *sb)
4415{
cce13252 4416 if (sb->s_root) {
1cb50f87
JK		 4417 struct f2fs_sb_info *sbi = F2FS_SB(sb);
4418
4419 set_sbi_flag(sbi, SBI_IS_CLOSE);
4420 f2fs_stop_gc_thread(sbi);
4421 f2fs_stop_discard_thread(sbi);
4422
6ce19aff
CY		 4423#ifdef CONFIG_F2FS_FS_COMPRESSION
4424 /*
4425 * latter evict_inode() can bypass checking and invalidating
4426 * compress inode cache.
4427 */
4428 if (test_opt(sbi, COMPRESS_CACHE))
4429 truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
4430#endif
4431
1cb50f87
JK		 4432 if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
4433 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4434 struct cp_control cpc = {
4435 .reason = CP_UMOUNT,
4436 };
4437 f2fs_write_checkpoint(sbi, &cpc);
4438 }
1378752b
CY		 4439
4440 if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb))
4441 sb->s_flags &= ~SB_RDONLY;
cce13252 4442 }
30a5537f
JK		 4443 kill_block_super(sb);
4444}
4445
aff063e2
JK		 4446static struct file_system_type f2fs_fs_type = {
4447 .owner = THIS_MODULE,
4448 .name = "f2fs",
4449 .mount = f2fs_mount,
30a5537f 4450 .kill_sb = kill_f2fs_super,
aff063e2
JK		 4451 .fs_flags = FS_REQUIRES_DEV,
4452};
7f78e035 4453MODULE_ALIAS_FS("f2fs");
aff063e2 4454
6e6093a8 4455static int __init init_inodecache(void)
aff063e2 4456{
5d097056
VD		 4457 f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache",
4458 sizeof(struct f2fs_inode_info), 0,
4459 SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL);
6bacf52f 4460 if (!f2fs_inode_cachep)
aff063e2
JK		 4461 return -ENOMEM;
4462 return 0;
4463}
4464
4465static void destroy_inodecache(void)
4466{
4467 /*
4468 * Make sure all delayed rcu free inodes are flushed before we
4469 * destroy cache.
4470 */
4471 rcu_barrier();
4472 kmem_cache_destroy(f2fs_inode_cachep);
4473}
4474
4475static int __init init_f2fs_fs(void)
4476{
4477 int err;
4478
4071e67c
AP		 4479 if (PAGE_SIZE != F2FS_BLKSIZE) {
4480 printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n",
4481 PAGE_SIZE, F2FS_BLKSIZE);
4482 return -EINVAL;
4483 }
4484
aff063e2
JK		 4485 err = init_inodecache();
4486 if (err)
4487 goto fail;
4d57b86d 4488 err = f2fs_create_node_manager_caches();
aff063e2 4489 if (err)
9890ff3f 4490 goto free_inodecache;
4d57b86d 4491 err = f2fs_create_segment_manager_caches();
aff063e2 4492 if (err)
9890ff3f 4493 goto free_node_manager_caches;
4d57b86d 4494 err = f2fs_create_checkpoint_caches();
aff063e2 4495 if (err)
06292073 4496 goto free_segment_manager_caches;
cad83c96 4497 err = f2fs_create_recovery_cache();
1dcc336b
CY		 4498 if (err)
4499 goto free_checkpoint_caches;
cad83c96
CY		 4500 err = f2fs_create_extent_cache();
4501 if (err)
4502 goto free_recovery_cache;
093749e2 4503 err = f2fs_create_garbage_collection_cache();
a398101a 4504 if (err)
1dcc336b 4505 goto free_extent_cache;
093749e2
CY		 4506 err = f2fs_init_sysfs();
4507 if (err)
4508 goto free_garbage_collection_cache;
2658e50d 4509 err = register_shrinker(&f2fs_shrinker_info);
cfc4d971 4510 if (err)
a398101a 4511 goto free_sysfs;
2658e50d
JK		 4512 err = register_filesystem(&f2fs_fs_type);
4513 if (err)
4514 goto free_shrinker;
21acc07d 4515 f2fs_create_root_stats();
6dbb1796
EB		 4516 err = f2fs_init_post_read_processing();
4517 if (err)
4518 goto free_root_stats;
a4b68176 4519 err = f2fs_init_iostat_processing();
0b20fcec
CY		 4520 if (err)
4521 goto free_post_read;
a4b68176
DJ		 4522 err = f2fs_init_bio_entry_cache();
4523 if (err)
4524 goto free_iostat;
f543805f
CY		 4525 err = f2fs_init_bioset();
4526 if (err)
4527 goto free_bio_enrty_cache;
5e6bbde9
CY		 4528 err = f2fs_init_compress_mempool();
4529 if (err)
4530 goto free_bioset;
c68d6c88
CY		 4531 err = f2fs_init_compress_cache();
4532 if (err)
4533 goto free_compress_mempool;
4d9a2bb1
CY		 4534 err = f2fs_create_casefold_cache();
4535 if (err)
4536 goto free_compress_cache;
9890ff3f 4537 return 0;
4d9a2bb1
CY		 4538free_compress_cache:
4539 f2fs_destroy_compress_cache();
c68d6c88
CY		 4540free_compress_mempool:
4541 f2fs_destroy_compress_mempool();
5e6bbde9
CY		 4542free_bioset:
4543 f2fs_destroy_bioset();
f543805f
CY		 4544free_bio_enrty_cache:
4545 f2fs_destroy_bio_entry_cache();
a4b68176
DJ		 4546free_iostat:
4547 f2fs_destroy_iostat_processing();
0b20fcec
CY		 4548free_post_read:
4549 f2fs_destroy_post_read_processing();
6dbb1796
EB		 4550free_root_stats:
4551 f2fs_destroy_root_stats();
787c7b8c 4552 unregister_filesystem(&f2fs_fs_type);
2658e50d
JK		 4553free_shrinker:
4554 unregister_shrinker(&f2fs_shrinker_info);
a398101a 4555free_sysfs:
dc6b2055 4556 f2fs_exit_sysfs();
093749e2
CY		 4557free_garbage_collection_cache:
4558 f2fs_destroy_garbage_collection_cache();
1dcc336b 4559free_extent_cache:
4d57b86d 4560 f2fs_destroy_extent_cache();
cad83c96
CY		 4561free_recovery_cache:
4562 f2fs_destroy_recovery_cache();
9890ff3f 4563free_checkpoint_caches:
4d57b86d 4564 f2fs_destroy_checkpoint_caches();
7fd9e544 4565free_segment_manager_caches:
4d57b86d 4566 f2fs_destroy_segment_manager_caches();
9890ff3f 4567free_node_manager_caches:
4d57b86d 4568 f2fs_destroy_node_manager_caches();
9890ff3f
ZH		 4569free_inodecache:
4570 destroy_inodecache();
aff063e2
JK		 4571fail:
4572 return err;
4573}
4574
4575static void __exit exit_f2fs_fs(void)
4576{
4d9a2bb1 4577 f2fs_destroy_casefold_cache();
c68d6c88 4578 f2fs_destroy_compress_cache();
5e6bbde9 4579 f2fs_destroy_compress_mempool();
f543805f 4580 f2fs_destroy_bioset();
0b20fcec 4581 f2fs_destroy_bio_entry_cache();
a4b68176 4582 f2fs_destroy_iostat_processing();
6dbb1796 4583 f2fs_destroy_post_read_processing();
4589d25d 4584 f2fs_destroy_root_stats();
aff063e2 4585 unregister_filesystem(&f2fs_fs_type);
b8bef79d 4586 unregister_shrinker(&f2fs_shrinker_info);
dc6b2055 4587 f2fs_exit_sysfs();
093749e2 4588 f2fs_destroy_garbage_collection_cache();
4d57b86d 4589 f2fs_destroy_extent_cache();
cad83c96 4590 f2fs_destroy_recovery_cache();
4d57b86d
CY		 4591 f2fs_destroy_checkpoint_caches();
4592 f2fs_destroy_segment_manager_caches();
4593 f2fs_destroy_node_manager_caches();
aff063e2
JK		 4594 destroy_inodecache();
4595}
4596
4597module_init(init_f2fs_fs)
4598module_exit(exit_f2fs_fs)
4599
4600MODULE_AUTHOR("Samsung Electronics's Praesto Team");
4601MODULE_DESCRIPTION("Flash Friendly File System");
4602MODULE_LICENSE("GPL");
0dd57178 4603MODULE_SOFTDEP("pre: crc32");
b4b9d34c 4604
Linux 6.x block layer and io_uring tree(s)