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f2fs: fix incorrect return value in f2fs_sanity_check_ckpt()
[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;
6691d940
DJ		 820 } else if (!strcmp(name, "fragment:segment")) {
821 F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_SEG;
822 } else if (!strcmp(name, "fragment:block")) {
823 F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_BLK;
36abef4e 824 } else {
ba87a45c 825 kfree(name);
36abef4e
JK		 826 return -EINVAL;
827 }
ba87a45c 828 kfree(name);
36abef4e 829 break;
ec91538d
JK		 830 case Opt_io_size_bits:
831 if (args->from && match_int(args, &arg))
832 return -EINVAL;
a8affc03 833 if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_VECS)) {
dcbb4c10 834 f2fs_warn(sbi, "Not support %d, larger than %d",
a8affc03 835 1 << arg, BIO_MAX_VECS);
ec91538d
JK		 836 return -EINVAL;
837 }
63189b78 838 F2FS_OPTION(sbi).write_io_size_bits = arg;
ec91538d 839 break;
4cb037ec 840#ifdef CONFIG_F2FS_FAULT_INJECTION
73faec4d
JK		 841 case Opt_fault_injection:
842 if (args->from && match_int(args, &arg))
843 return -EINVAL;
d494500a
CY		 844 f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
845 set_opt(sbi, FAULT_INJECTION);
d494500a 846 break;
4cb037ec 847
d494500a
CY		 848 case Opt_fault_type:
849 if (args->from && match_int(args, &arg))
850 return -EINVAL;
d494500a 851 f2fs_build_fault_attr(sbi, 0, arg);
0cc0dec2 852 set_opt(sbi, FAULT_INJECTION);
4cb037ec 853 break;
73faec4d 854#else
4cb037ec 855 case Opt_fault_injection:
dcbb4c10 856 f2fs_info(sbi, "fault_injection options not supported");
73faec4d 857 break;
4cb037ec
CX		 858
859 case Opt_fault_type:
dcbb4c10 860 f2fs_info(sbi, "fault_type options not supported");
4cb037ec
CX		 861 break;
862#endif
6d94c74a 863 case Opt_lazytime:
1751e8a6 864 sb->s_flags |= SB_LAZYTIME;
6d94c74a
JK		 865 break;
866 case Opt_nolazytime:
1751e8a6 867 sb->s_flags &= ~SB_LAZYTIME;
6d94c74a 868 break;
0abd675e 869#ifdef CONFIG_QUOTA
4b2414d0 870 case Opt_quota:
0abd675e
CY		 871 case Opt_usrquota:
872 set_opt(sbi, USRQUOTA);
873 break;
874 case Opt_grpquota:
875 set_opt(sbi, GRPQUOTA);
876 break;
5c57132e
CY		 877 case Opt_prjquota:
878 set_opt(sbi, PRJQUOTA);
879 break;
4b2414d0
CY		 880 case Opt_usrjquota:
881 ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]);
882 if (ret)
883 return ret;
884 break;
885 case Opt_grpjquota:
886 ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]);
887 if (ret)
888 return ret;
889 break;
890 case Opt_prjjquota:
891 ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]);
892 if (ret)
893 return ret;
894 break;
895 case Opt_offusrjquota:
896 ret = f2fs_clear_qf_name(sb, USRQUOTA);
897 if (ret)
898 return ret;
899 break;
900 case Opt_offgrpjquota:
901 ret = f2fs_clear_qf_name(sb, GRPQUOTA);
902 if (ret)
903 return ret;
904 break;
905 case Opt_offprjjquota:
906 ret = f2fs_clear_qf_name(sb, PRJQUOTA);
907 if (ret)
908 return ret;
909 break;
910 case Opt_jqfmt_vfsold:
63189b78 911 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
4b2414d0
CY		 912 break;
913 case Opt_jqfmt_vfsv0:
63189b78 914 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
4b2414d0
CY		 915 break;
916 case Opt_jqfmt_vfsv1:
63189b78 917 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
4b2414d0
CY		 918 break;
919 case Opt_noquota:
920 clear_opt(sbi, QUOTA);
921 clear_opt(sbi, USRQUOTA);
922 clear_opt(sbi, GRPQUOTA);
923 clear_opt(sbi, PRJQUOTA);
924 break;
0abd675e 925#else
4b2414d0 926 case Opt_quota:
0abd675e
CY		 927 case Opt_usrquota:
928 case Opt_grpquota:
5c57132e 929 case Opt_prjquota:
4b2414d0
CY		 930 case Opt_usrjquota:
931 case Opt_grpjquota:
932 case Opt_prjjquota:
933 case Opt_offusrjquota:
934 case Opt_offgrpjquota:
935 case Opt_offprjjquota:
936 case Opt_jqfmt_vfsold:
937 case Opt_jqfmt_vfsv0:
938 case Opt_jqfmt_vfsv1:
939 case Opt_noquota:
dcbb4c10 940 f2fs_info(sbi, "quota operations not supported");
0abd675e
CY		 941 break;
942#endif
0cdd3195
HL		 943 case Opt_whint:
944 name = match_strdup(&args[0]);
945 if (!name)
946 return -ENOMEM;
3c57f751 947 if (!strcmp(name, "user-based")) {
63189b78 948 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER;
3c57f751 949 } else if (!strcmp(name, "off")) {
63189b78 950 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
3c57f751 951 } else if (!strcmp(name, "fs-based")) {
63189b78 952 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS;
0cdd3195 953 } else {
ba87a45c 954 kfree(name);
0cdd3195
HL		 955 return -EINVAL;
956 }
ba87a45c 957 kfree(name);
0cdd3195 958 break;
07939627
JK		 959 case Opt_alloc:
960 name = match_strdup(&args[0]);
961 if (!name)
962 return -ENOMEM;
963
3c57f751 964 if (!strcmp(name, "default")) {
63189b78 965 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
3c57f751 966 } else if (!strcmp(name, "reuse")) {
63189b78 967 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
07939627 968 } else {
ba87a45c 969 kfree(name);
07939627
JK		 970 return -EINVAL;
971 }
ba87a45c 972 kfree(name);
07939627 973 break;
93cf93f1
JZ		 974 case Opt_fsync:
975 name = match_strdup(&args[0]);
976 if (!name)
977 return -ENOMEM;
3c57f751 978 if (!strcmp(name, "posix")) {
63189b78 979 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
3c57f751 980 } else if (!strcmp(name, "strict")) {
63189b78 981 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
3c57f751 982 } else if (!strcmp(name, "nobarrier")) {
d6290814
JK		 983 F2FS_OPTION(sbi).fsync_mode =
984 FSYNC_MODE_NOBARRIER;
93cf93f1 985 } else {
ba87a45c 986 kfree(name);
93cf93f1
JZ		 987 return -EINVAL;
988 }
ba87a45c 989 kfree(name);
93cf93f1 990 break;
ff62af20 991 case Opt_test_dummy_encryption:
ed318a6c
EB		 992 ret = f2fs_set_test_dummy_encryption(sb, p, &args[0],
993 is_remount);
994 if (ret)
995 return ret;
ff62af20 996 break;
27aacd28
ST		 997 case Opt_inlinecrypt:
998#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
999 sb->s_flags |= SB_INLINECRYPT;
1000#else
1001 f2fs_info(sbi, "inline encryption not supported");
1002#endif
1003 break;
4d3aed70
DR		 1004 case Opt_checkpoint_disable_cap_perc:
1005 if (args->from && match_int(args, &arg))
4354994f 1006 return -EINVAL;
4d3aed70
DR		 1007 if (arg < 0 || arg > 100)
1008 return -EINVAL;
1ae18f71 1009 F2FS_OPTION(sbi).unusable_cap_perc = arg;
4d3aed70
DR		 1010 set_opt(sbi, DISABLE_CHECKPOINT);
1011 break;
1012 case Opt_checkpoint_disable_cap:
1013 if (args->from && match_int(args, &arg))
1014 return -EINVAL;
1015 F2FS_OPTION(sbi).unusable_cap = arg;
1016 set_opt(sbi, DISABLE_CHECKPOINT);
1017 break;
1018 case Opt_checkpoint_disable:
1019 set_opt(sbi, DISABLE_CHECKPOINT);
1020 break;
1021 case Opt_checkpoint_enable:
1022 clear_opt(sbi, DISABLE_CHECKPOINT);
4354994f 1023 break;
261eeb9c
DJ		 1024 case Opt_checkpoint_merge:
1025 set_opt(sbi, MERGE_CHECKPOINT);
1026 break;
1027 case Opt_nocheckpoint_merge:
1028 clear_opt(sbi, MERGE_CHECKPOINT);
1029 break;
1f0b067b 1030#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1031 case Opt_compress_algorithm:
1032 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1033 f2fs_info(sbi, "Image doesn't support compression");
1034 break;
4c8ff709
CY		 1035 }
1036 name = match_strdup(&args[0]);
1037 if (!name)
1038 return -ENOMEM;
3c57f751 1039 if (!strcmp(name, "lzo")) {
32be0e97 1040#ifdef CONFIG_F2FS_FS_LZO
3fde13f8 1041 F2FS_OPTION(sbi).compress_level = 0;
4c8ff709
CY		 1042 F2FS_OPTION(sbi).compress_algorithm =
1043 COMPRESS_LZO;
32be0e97
CY		 1044#else
1045 f2fs_info(sbi, "kernel doesn't support lzo compression");
1046#endif
3fde13f8 1047 } else if (!strncmp(name, "lz4", 3)) {
32be0e97 1048#ifdef CONFIG_F2FS_FS_LZ4
3fde13f8
CY		 1049 ret = f2fs_set_lz4hc_level(sbi, name);
1050 if (ret) {
1051 kfree(name);
1052 return -EINVAL;
1053 }
4c8ff709
CY		 1054 F2FS_OPTION(sbi).compress_algorithm =
1055 COMPRESS_LZ4;
32be0e97
CY		 1056#else
1057 f2fs_info(sbi, "kernel doesn't support lz4 compression");
1058#endif
3fde13f8 1059 } else if (!strncmp(name, "zstd", 4)) {
32be0e97 1060#ifdef CONFIG_F2FS_FS_ZSTD
3fde13f8
CY		 1061 ret = f2fs_set_zstd_level(sbi, name);
1062 if (ret) {
1063 kfree(name);
1064 return -EINVAL;
1065 }
50cfa66f
CY		 1066 F2FS_OPTION(sbi).compress_algorithm =
1067 COMPRESS_ZSTD;
32be0e97
CY		 1068#else
1069 f2fs_info(sbi, "kernel doesn't support zstd compression");
1070#endif
6d92b201 1071 } else if (!strcmp(name, "lzo-rle")) {
32be0e97 1072#ifdef CONFIG_F2FS_FS_LZORLE
3fde13f8 1073 F2FS_OPTION(sbi).compress_level = 0;
6d92b201
CY		 1074 F2FS_OPTION(sbi).compress_algorithm =
1075 COMPRESS_LZORLE;
32be0e97
CY		 1076#else
1077 f2fs_info(sbi, "kernel doesn't support lzorle compression");
1078#endif
4c8ff709
CY		 1079 } else {
1080 kfree(name);
1081 return -EINVAL;
1082 }
1083 kfree(name);
1084 break;
1085 case Opt_compress_log_size:
1086 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1087 f2fs_info(sbi, "Image doesn't support compression");
1088 break;
4c8ff709
CY		 1089 }
1090 if (args->from && match_int(args, &arg))
1091 return -EINVAL;
1092 if (arg < MIN_COMPRESS_LOG_SIZE ||
1093 arg > MAX_COMPRESS_LOG_SIZE) {
1094 f2fs_err(sbi,
1095 "Compress cluster log size is out of range");
1096 return -EINVAL;
1097 }
1098 F2FS_OPTION(sbi).compress_log_size = arg;
1099 break;
1100 case Opt_compress_extension:
1101 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1102 f2fs_info(sbi, "Image doesn't support compression");
1103 break;
4c8ff709
CY		 1104 }
1105 name = match_strdup(&args[0]);
1106 if (!name)
1107 return -ENOMEM;
1108
1109 ext = F2FS_OPTION(sbi).extensions;
1110 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
1111
1112 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1113 ext_cnt >= COMPRESS_EXT_NUM) {
1114 f2fs_err(sbi,
1115 "invalid extension length/number");
1116 kfree(name);
1117 return -EINVAL;
1118 }
1119
1120 strcpy(ext[ext_cnt], name);
1121 F2FS_OPTION(sbi).compress_ext_cnt++;
1122 kfree(name);
1123 break;
151b1982
FC		 1124 case Opt_nocompress_extension:
1125 if (!f2fs_sb_has_compression(sbi)) {
1126 f2fs_info(sbi, "Image doesn't support compression");
1127 break;
1128 }
1129 name = match_strdup(&args[0]);
1130 if (!name)
1131 return -ENOMEM;
1132
1133 noext = F2FS_OPTION(sbi).noextensions;
1134 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
1135
1136 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1137 noext_cnt >= COMPRESS_EXT_NUM) {
1138 f2fs_err(sbi,
1139 "invalid extension length/number");
1140 kfree(name);
1141 return -EINVAL;
1142 }
1143
1144 strcpy(noext[noext_cnt], name);
1145 F2FS_OPTION(sbi).nocompress_ext_cnt++;
1146 kfree(name);
1147 break;
b28f047b
CY		 1148 case Opt_compress_chksum:
1149 F2FS_OPTION(sbi).compress_chksum = true;
1150 break;
602a16d5
DJ		 1151 case Opt_compress_mode:
1152 name = match_strdup(&args[0]);
1153 if (!name)
1154 return -ENOMEM;
1155 if (!strcmp(name, "fs")) {
1156 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
1157 } else if (!strcmp(name, "user")) {
1158 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
1159 } else {
1160 kfree(name);
1161 return -EINVAL;
1162 }
1163 kfree(name);
1164 break;
6ce19aff
CY		 1165 case Opt_compress_cache:
1166 set_opt(sbi, COMPRESS_CACHE);
1167 break;
1f0b067b
CY		 1168#else
1169 case Opt_compress_algorithm:
1170 case Opt_compress_log_size:
1171 case Opt_compress_extension:
151b1982 1172 case Opt_nocompress_extension:
b28f047b 1173 case Opt_compress_chksum:
602a16d5 1174 case Opt_compress_mode:
6ce19aff 1175 case Opt_compress_cache:
1f0b067b
CY		 1176 f2fs_info(sbi, "compression options not supported");
1177 break;
1178#endif
093749e2
CY		 1179 case Opt_atgc:
1180 set_opt(sbi, ATGC);
1181 break;
5911d2d1
CY		 1182 case Opt_gc_merge:
1183 set_opt(sbi, GC_MERGE);
1184 break;
1185 case Opt_nogc_merge:
1186 clear_opt(sbi, GC_MERGE);
1187 break;
4f993264
CY		 1188 case Opt_discard_unit:
1189 name = match_strdup(&args[0]);
1190 if (!name)
1191 return -ENOMEM;
1192 if (!strcmp(name, "block")) {
1193 F2FS_OPTION(sbi).discard_unit =
1194 DISCARD_UNIT_BLOCK;
1195 } else if (!strcmp(name, "segment")) {
1196 F2FS_OPTION(sbi).discard_unit =
1197 DISCARD_UNIT_SEGMENT;
1198 } else if (!strcmp(name, "section")) {
1199 F2FS_OPTION(sbi).discard_unit =
1200 DISCARD_UNIT_SECTION;
1201 } else {
1202 kfree(name);
1203 return -EINVAL;
1204 }
1205 kfree(name);
1206 break;
696c018c 1207 default:
dcbb4c10
JP		 1208 f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
1209 p);
696c018c
NJ		 1210 return -EINVAL;
1211 }
1212 }
a7d9fe3c 1213default_check:
4b2414d0
CY		 1214#ifdef CONFIG_QUOTA
1215 if (f2fs_check_quota_options(sbi))
1216 return -EINVAL;
00960c2c 1217#else
7beb01f7 1218 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1219 f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
00960c2c
SY		 1220 return -EINVAL;
1221 }
7beb01f7 1222 if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1223 f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
4ddc1b28
CY		 1224 return -EINVAL;
1225 }
4b2414d0 1226#endif
5aba5430
DR		 1227#ifndef CONFIG_UNICODE
1228 if (f2fs_sb_has_casefold(sbi)) {
1229 f2fs_err(sbi,
1230 "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
1231 return -EINVAL;
1232 }
1233#endif
d0660122
CY		 1234 /*
1235 * The BLKZONED feature indicates that the drive was formatted with
1236 * zone alignment optimization. This is optional for host-aware
1237 * devices, but mandatory for host-managed zoned block devices.
1238 */
1239#ifndef CONFIG_BLK_DEV_ZONED
1240 if (f2fs_sb_has_blkzoned(sbi)) {
1241 f2fs_err(sbi, "Zoned block device support is not enabled");
1242 return -EINVAL;
1243 }
1244#endif
4f993264
CY		 1245 if (f2fs_sb_has_blkzoned(sbi)) {
1246 if (F2FS_OPTION(sbi).discard_unit !=
1247 DISCARD_UNIT_SECTION) {
1248 f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default");
1249 F2FS_OPTION(sbi).discard_unit =
1250 DISCARD_UNIT_SECTION;
1251 }
1252 }
ec91538d 1253
151b1982
FC		 1254#ifdef CONFIG_F2FS_FS_COMPRESSION
1255 if (f2fs_test_compress_extension(sbi)) {
1256 f2fs_err(sbi, "invalid compress or nocompress extension");
1257 return -EINVAL;
1258 }
1259#endif
1260
b0332a0f 1261 if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) {
dcbb4c10
JP		 1262 f2fs_err(sbi, "Should set mode=lfs with %uKB-sized IO",
1263 F2FS_IO_SIZE_KB(sbi));
ec91538d
JK		 1264 return -EINVAL;
1265 }
6afc662e
CY		 1266
1267 if (test_opt(sbi, INLINE_XATTR_SIZE)) {
70db5b04
JK		 1268 int min_size, max_size;
1269
7beb01f7
CY		 1270 if (!f2fs_sb_has_extra_attr(sbi) ||
1271 !f2fs_sb_has_flexible_inline_xattr(sbi)) {
dcbb4c10 1272 f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
4d817ae0
CY		 1273 return -EINVAL;
1274 }
6afc662e 1275 if (!test_opt(sbi, INLINE_XATTR)) {
dcbb4c10 1276 f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
6afc662e
CY		 1277 return -EINVAL;
1278 }
70db5b04
JK		 1279
1280 min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32);
dd6c89b5 1281 max_size = MAX_INLINE_XATTR_SIZE;
70db5b04
JK		 1282
1283 if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
1284 F2FS_OPTION(sbi).inline_xattr_size > max_size) {
dcbb4c10
JP		 1285 f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
1286 min_size, max_size);
6afc662e
CY		 1287 return -EINVAL;
1288 }
1289 }
0cdd3195 1290
b0332a0f 1291 if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) {
833dcd35 1292 f2fs_err(sbi, "LFS not compatible with checkpoint=disable");
4354994f
DR		 1293 return -EINVAL;
1294 }
1295
0cdd3195 1296 /* Not pass down write hints if the number of active logs is lesser
d0b9e42a 1297 * than NR_CURSEG_PERSIST_TYPE.
0cdd3195 1298 */
011e0868 1299 if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_PERSIST_TYPE)
63189b78 1300 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
a7d9fe3c
JK		 1301
1302 if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
1303 f2fs_err(sbi, "Allow to mount readonly mode only");
1304 return -EROFS;
1305 }
696c018c
NJ		 1306 return 0;
1307}
1308
aff063e2
JK		 1309static struct inode *f2fs_alloc_inode(struct super_block *sb)
1310{
1311 struct f2fs_inode_info *fi;
1312
32410577
CY		 1313 fi = f2fs_kmem_cache_alloc(f2fs_inode_cachep,
1314 GFP_F2FS_ZERO, false, F2FS_SB(sb));
aff063e2
JK		 1315 if (!fi)
1316 return NULL;
1317
1318 init_once((void *) fi);
1319
434720fa 1320 /* Initialize f2fs-specific inode info */
204706c7 1321 atomic_set(&fi->dirty_pages, 0);
c2759eba 1322 atomic_set(&fi->i_compr_blocks, 0);
d928bfbf 1323 init_rwsem(&fi->i_sem);
c10c9820 1324 spin_lock_init(&fi->i_size_lock);
2710fd7e 1325 INIT_LIST_HEAD(&fi->dirty_list);
0f18b462 1326 INIT_LIST_HEAD(&fi->gdirty_list);
57864ae5 1327 INIT_LIST_HEAD(&fi->inmem_ilist);
88b88a66
JK		 1328 INIT_LIST_HEAD(&fi->inmem_pages);
1329 mutex_init(&fi->inmem_lock);
b2532c69
CY		 1330 init_rwsem(&fi->i_gc_rwsem[READ]);
1331 init_rwsem(&fi->i_gc_rwsem[WRITE]);
27161f13 1332 init_rwsem(&fi->i_xattr_sem);
aff063e2 1333
ab9fa662
JK		 1334 /* Will be used by directory only */
1335 fi->i_dir_level = F2FS_SB(sb)->dir_level;
f2470371 1336
aff063e2
JK		 1337 return &fi->vfs_inode;
1338}
1339
531ad7d5
JK		 1340static int f2fs_drop_inode(struct inode *inode)
1341{
a8933b6b 1342 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
b8d96a30 1343 int ret;
a8933b6b
CY		 1344
1345 /*
1346 * during filesystem shutdown, if checkpoint is disabled,
1347 * drop useless meta/node dirty pages.
1348 */
1349 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1350 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1351 inode->i_ino == F2FS_META_INO(sbi)) {
1352 trace_f2fs_drop_inode(inode, 1);
1353 return 1;
1354 }
1355 }
1356
531ad7d5
JK		 1357 /*
1358 * This is to avoid a deadlock condition like below.
1359 * writeback_single_inode(inode)
1360 * - f2fs_write_data_page
1361 * - f2fs_gc -> iput -> evict
1362 * - inode_wait_for_writeback(inode)
1363 */
0f18b462 1364 if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) {
06e1bc05 1365 if (!inode->i_nlink && !is_bad_inode(inode)) {
3e72f721
JK		 1366 /* to avoid evict_inode call simultaneously */
1367 atomic_inc(&inode->i_count);
06e1bc05
JK		 1368 spin_unlock(&inode->i_lock);
1369
1370 /* some remained atomic pages should discarded */
1371 if (f2fs_is_atomic_file(inode))
4d57b86d 1372 f2fs_drop_inmem_pages(inode);
06e1bc05 1373
3e72f721
JK		 1374 /* should remain fi->extent_tree for writepage */
1375 f2fs_destroy_extent_node(inode);
1376
06e1bc05 1377 sb_start_intwrite(inode->i_sb);
fc9581c8 1378 f2fs_i_size_write(inode, 0);
06e1bc05 1379
a0770e13 1380 f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
1381 inode, NULL, 0, DATA);
1382 truncate_inode_pages_final(inode->i_mapping);
1383
06e1bc05 1384 if (F2FS_HAS_BLOCKS(inode))
9a449e9c 1385 f2fs_truncate(inode);
06e1bc05
JK		 1386
1387 sb_end_intwrite(inode->i_sb);
1388
06e1bc05 1389 spin_lock(&inode->i_lock);
3e72f721 1390 atomic_dec(&inode->i_count);
06e1bc05 1391 }
b8d96a30 1392 trace_f2fs_drop_inode(inode, 0);
531ad7d5 1393 return 0;
06e1bc05 1394 }
b8d96a30 1395 ret = generic_drop_inode(inode);
8ce589c7
EB		 1396 if (!ret)
1397 ret = fscrypt_drop_inode(inode);
b8d96a30
HP		 1398 trace_f2fs_drop_inode(inode, ret);
1399 return ret;
531ad7d5
JK		 1400}
1401
7c45729a 1402int f2fs_inode_dirtied(struct inode *inode, bool sync)
b3783873 1403{
0f18b462 1404 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7c45729a 1405 int ret = 0;
0f18b462 1406
0f18b462
JK		 1407 spin_lock(&sbi->inode_lock[DIRTY_META]);
1408 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
7c45729a
JK		 1409 ret = 1;
1410 } else {
1411 set_inode_flag(inode, FI_DIRTY_INODE);
1412 stat_inc_dirty_inode(sbi, DIRTY_META);
0f18b462 1413 }
7c45729a
JK		 1414 if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) {
1415 list_add_tail(&F2FS_I(inode)->gdirty_list,
0f18b462 1416 &sbi->inode_list[DIRTY_META]);
7c45729a
JK		 1417 inc_page_count(sbi, F2FS_DIRTY_IMETA);
1418 }
338bbfa0 1419 spin_unlock(&sbi->inode_lock[DIRTY_META]);
7c45729a 1420 return ret;
0f18b462
JK		 1421}
1422
1423void f2fs_inode_synced(struct inode *inode)
1424{
1425 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1426
1427 spin_lock(&sbi->inode_lock[DIRTY_META]);
1428 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) {
1429 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1430 return;
1431 }
7c45729a
JK		 1432 if (!list_empty(&F2FS_I(inode)->gdirty_list)) {
1433 list_del_init(&F2FS_I(inode)->gdirty_list);
1434 dec_page_count(sbi, F2FS_DIRTY_IMETA);
1435 }
0f18b462 1436 clear_inode_flag(inode, FI_DIRTY_INODE);
26de9b11 1437 clear_inode_flag(inode, FI_AUTO_RECOVER);
0f18b462 1438 stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META);
338bbfa0 1439 spin_unlock(&sbi->inode_lock[DIRTY_META]);
b3783873
JK		 1440}
1441
b56ab837
JK		 1442/*
1443 * f2fs_dirty_inode() is called from __mark_inode_dirty()
1444 *
1445 * We should call set_dirty_inode to write the dirty inode through write_inode.
1446 */
1447static void f2fs_dirty_inode(struct inode *inode, int flags)
1448{
1449 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1450
1451 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1452 inode->i_ino == F2FS_META_INO(sbi))
1453 return;
1454
b56ab837
JK		 1455 if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
1456 clear_inode_flag(inode, FI_AUTO_RECOVER);
1457
7c45729a 1458 f2fs_inode_dirtied(inode, false);
b56ab837
JK		 1459}
1460
d01718a0 1461static void f2fs_free_inode(struct inode *inode)
aff063e2 1462{
2c58d548 1463 fscrypt_free_inode(inode);
aff063e2
JK		 1464 kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
1465}
1466
523be8a6
JK		 1467static void destroy_percpu_info(struct f2fs_sb_info *sbi)
1468{
41382ec4 1469 percpu_counter_destroy(&sbi->alloc_valid_block_count);
513c5f37 1470 percpu_counter_destroy(&sbi->total_valid_inode_count);
523be8a6
JK		 1471}
1472
3c62be17
JK		 1473static void destroy_device_list(struct f2fs_sb_info *sbi)
1474{
1475 int i;
1476
1477 for (i = 0; i < sbi->s_ndevs; i++) {
1478 blkdev_put(FDEV(i).bdev, FMODE_EXCL);
1479#ifdef CONFIG_BLK_DEV_ZONED
95175daf 1480 kvfree(FDEV(i).blkz_seq);
de881df9 1481 kfree(FDEV(i).zone_capacity_blocks);
3c62be17
JK		 1482#endif
1483 }
5222595d 1484 kvfree(sbi->devs);
3c62be17
JK		 1485}
1486
aff063e2
JK		 1487static void f2fs_put_super(struct super_block *sb)
1488{
1489 struct f2fs_sb_info *sbi = F2FS_SB(sb);
a398101a 1490 int i;
cf5c759f 1491 bool dropped;
aff063e2 1492
99c787cf
LG		 1493 /* unregister procfs/sysfs entries in advance to avoid race case */
1494 f2fs_unregister_sysfs(sbi);
1495
0abd675e 1496 f2fs_quota_off_umount(sb);
aff063e2 1497
2658e50d
JK		 1498 /* prevent remaining shrinker jobs */
1499 mutex_lock(&sbi->umount_mutex);
1500
261eeb9c
DJ		 1501 /*
1502 * flush all issued checkpoints and stop checkpoint issue thread.
1503 * after then, all checkpoints should be done by each process context.
1504 */
1505 f2fs_stop_ckpt_thread(sbi);
1506
85dc2f2c
JK		 1507 /*
1508 * We don't need to do checkpoint when superblock is clean.
1509 * But, the previous checkpoint was not done by umount, it needs to do
1510 * clean checkpoint again.
1511 */
4354994f
DR		 1512 if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
1513 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
75ab4cb8
JK		 1514 struct cp_control cpc = {
1515 .reason = CP_UMOUNT,
1516 };
4d57b86d 1517 f2fs_write_checkpoint(sbi, &cpc);
75ab4cb8 1518 }
aff063e2 1519
4e6a8d9b 1520 /* be sure to wait for any on-going discard commands */
03f2c02d 1521 dropped = f2fs_issue_discard_timeout(sbi);
4e6a8d9b 1522
7d20c8ab
CY		 1523 if ((f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) &&
1524 !sbi->discard_blks && !dropped) {
1f43e2ad
CY		 1525 struct cp_control cpc = {
1526 .reason = CP_UMOUNT | CP_TRIMMED,
1527 };
4d57b86d 1528 f2fs_write_checkpoint(sbi, &cpc);
1f43e2ad
CY		 1529 }
1530
cf779cab
JK		 1531 /*
1532 * normally superblock is clean, so we need to release this.
1533 * In addition, EIO will skip do checkpoint, we need this as well.
1534 */
4d57b86d 1535 f2fs_release_ino_entry(sbi, true);
6f12ac25 1536
2658e50d
JK		 1537 f2fs_leave_shrinker(sbi);
1538 mutex_unlock(&sbi->umount_mutex);
1539
17c19120 1540 /* our cp_error case, we can wait for any writeback page */
b9109b0e 1541 f2fs_flush_merged_writes(sbi);
17c19120 1542
bf22c3cc 1543 f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
50fa53ec
CY		 1544
1545 f2fs_bug_on(sbi, sbi->fsync_node_num);
1546
6ce19aff
CY		 1547 f2fs_destroy_compress_inode(sbi);
1548
aff063e2 1549 iput(sbi->node_inode);
7c77bf7d
JK		 1550 sbi->node_inode = NULL;
1551
aff063e2 1552 iput(sbi->meta_inode);
7c77bf7d 1553 sbi->meta_inode = NULL;
aff063e2 1554
60aa4d55
ST		 1555 /*
1556 * iput() can update stat information, if f2fs_write_checkpoint()
1557 * above failed with error.
1558 */
1559 f2fs_destroy_stats(sbi);
1560
aff063e2 1561 /* destroy f2fs internal modules */
4d57b86d
CY		 1562 f2fs_destroy_node_manager(sbi);
1563 f2fs_destroy_segment_manager(sbi);
aff063e2 1564
4c8ff709
CY		 1565 f2fs_destroy_post_read_wq(sbi);
1566
5222595d 1567 kvfree(sbi->ckpt);
a398101a 1568
aff063e2 1569 sb->s_fs_info = NULL;
43b6573b
KM		 1570 if (sbi->s_chksum_driver)
1571 crypto_free_shash(sbi->s_chksum_driver);
742532d1 1572 kfree(sbi->raw_super);
523be8a6 1573
3c62be17 1574 destroy_device_list(sbi);
31083031 1575 f2fs_destroy_page_array_cache(sbi);
a999150f 1576 f2fs_destroy_xattr_caches(sbi);
b6895e8f 1577 mempool_destroy(sbi->write_io_dummy);
4b2414d0
CY		 1578#ifdef CONFIG_QUOTA
1579 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 1580 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 1581#endif
ac4acb1f 1582 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
523be8a6 1583 destroy_percpu_info(sbi);
a4b68176 1584 f2fs_destroy_iostat(sbi);
a912b54d 1585 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 1586 kvfree(sbi->write_io[i]);
5aba5430 1587#ifdef CONFIG_UNICODE
eca4873e 1588 utf8_unload(sb->s_encoding);
5aba5430 1589#endif
742532d1 1590 kfree(sbi);
aff063e2
JK		 1591}
1592
1593int f2fs_sync_fs(struct super_block *sb, int sync)
1594{
1595 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c34f42e2 1596 int err = 0;
aff063e2 1597
1f227a3e
JK		 1598 if (unlikely(f2fs_cp_error(sbi)))
1599 return 0;
4354994f
DR		 1600 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1601 return 0;
1f227a3e 1602
a2a4a7e4
NJ		 1603 trace_f2fs_sync_fs(sb, sync);
1604
4b2414d0
CY		 1605 if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
1606 return -EAGAIN;
1607
261eeb9c
DJ		 1608 if (sync)
1609 err = f2fs_issue_checkpoint(sbi);
119ee914 1610
c34f42e2 1611 return err;
aff063e2
JK		 1612}
1613
d6212a5f
CL		 1614static int f2fs_freeze(struct super_block *sb)
1615{
77888c1e 1616 if (f2fs_readonly(sb))
d6212a5f
CL		 1617 return 0;
1618
b4b9d34c
JK		 1619 /* IO error happened before */
1620 if (unlikely(f2fs_cp_error(F2FS_SB(sb))))
1621 return -EIO;
1622
1623 /* must be clean, since sync_filesystem() was already called */
1624 if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
1625 return -EINVAL;
d50dfc0c
JK		 1626
1627 /* ensure no checkpoint required */
1628 if (!llist_empty(&F2FS_SB(sb)->cprc_info.issue_list))
1629 return -EINVAL;
b4b9d34c 1630 return 0;
d6212a5f
CL		 1631}
1632
1633static int f2fs_unfreeze(struct super_block *sb)
1634{
1635 return 0;
1636}
1637
ddc34e32
CY		 1638#ifdef CONFIG_QUOTA
1639static int f2fs_statfs_project(struct super_block *sb,
1640 kprojid_t projid, struct kstatfs *buf)
1641{
1642 struct kqid qid;
1643 struct dquot *dquot;
1644 u64 limit;
1645 u64 curblock;
1646
1647 qid = make_kqid_projid(projid);
1648 dquot = dqget(sb, qid);
1649 if (IS_ERR(dquot))
1650 return PTR_ERR(dquot);
955ac6e5 1651 spin_lock(&dquot->dq_dqb_lock);
ddc34e32 1652
bf2cbd3c
CX		 1653 limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit,
1654 dquot->dq_dqb.dqb_bhardlimit);
acdf2172
CX		 1655 if (limit)
1656 limit >>= sb->s_blocksize_bits;
909110c0 1657
ddc34e32 1658 if (limit && buf->f_blocks > limit) {
baaa7ebf
KK		 1659 curblock = (dquot->dq_dqb.dqb_curspace +
1660 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
ddc34e32
CY		 1661 buf->f_blocks = limit;
1662 buf->f_bfree = buf->f_bavail =
1663 (buf->f_blocks > curblock) ?
1664 (buf->f_blocks - curblock) : 0;
1665 }
1666
bf2cbd3c
CX		 1667 limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit,
1668 dquot->dq_dqb.dqb_ihardlimit);
909110c0 1669
ddc34e32
CY		 1670 if (limit && buf->f_files > limit) {
1671 buf->f_files = limit;
1672 buf->f_ffree =
1673 (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
1674 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
1675 }
1676
955ac6e5 1677 spin_unlock(&dquot->dq_dqb_lock);
ddc34e32
CY		 1678 dqput(dquot);
1679 return 0;
1680}
1681#endif
1682
aff063e2
JK		 1683static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
1684{
1685 struct super_block *sb = dentry->d_sb;
1686 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1687 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
f66c027e 1688 block_t total_count, user_block_count, start_count;
0cc091d0 1689 u64 avail_node_count;
aff063e2
JK		 1690
1691 total_count = le64_to_cpu(sbi->raw_super->block_count);
1692 user_block_count = sbi->user_block_count;
1693 start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
aff063e2
JK		 1694 buf->f_type = F2FS_SUPER_MAGIC;
1695 buf->f_bsize = sbi->blocksize;
1696
1697 buf->f_blocks = total_count - start_count;
f66c027e 1698 buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
80d42145 1699 sbi->current_reserved_blocks;
c9c8ed50
CY		 1700
1701 spin_lock(&sbi->stat_lock);
4354994f
DR		 1702 if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
1703 buf->f_bfree = 0;
1704 else
1705 buf->f_bfree -= sbi->unusable_block_count;
c9c8ed50 1706 spin_unlock(&sbi->stat_lock);
4354994f 1707
63189b78
CY		 1708 if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
1709 buf->f_bavail = buf->f_bfree -
1710 F2FS_OPTION(sbi).root_reserved_blocks;
7e65be49
JK		 1711 else
1712 buf->f_bavail = 0;
aff063e2 1713
27cae0bc 1714 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
0cc091d0
JK		 1715
1716 if (avail_node_count > user_block_count) {
1717 buf->f_files = user_block_count;
1718 buf->f_ffree = buf->f_bavail;
1719 } else {
1720 buf->f_files = avail_node_count;
1721 buf->f_ffree = min(avail_node_count - valid_node_count(sbi),
1722 buf->f_bavail);
1723 }
aff063e2 1724
5a20d339 1725 buf->f_namelen = F2FS_NAME_LEN;
6d1349c7 1726 buf->f_fsid = u64_to_fsid(id);
aff063e2 1727
ddc34e32
CY		 1728#ifdef CONFIG_QUOTA
1729 if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) &&
1730 sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
1731 f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf);
1732 }
1733#endif
aff063e2
JK		 1734 return 0;
1735}
1736
4b2414d0
CY		 1737static inline void f2fs_show_quota_options(struct seq_file *seq,
1738 struct super_block *sb)
1739{
1740#ifdef CONFIG_QUOTA
1741 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1742
63189b78 1743 if (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1744 char *fmtname = "";
1745
63189b78 1746 switch (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1747 case QFMT_VFS_OLD:
1748 fmtname = "vfsold";
1749 break;
1750 case QFMT_VFS_V0:
1751 fmtname = "vfsv0";
1752 break;
1753 case QFMT_VFS_V1:
1754 fmtname = "vfsv1";
1755 break;
1756 }
1757 seq_printf(seq, ",jqfmt=%s", fmtname);
1758 }
1759
63189b78
CY		 1760 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
1761 seq_show_option(seq, "usrjquota",
1762 F2FS_OPTION(sbi).s_qf_names[USRQUOTA]);
4b2414d0 1763
63189b78
CY		 1764 if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
1765 seq_show_option(seq, "grpjquota",
1766 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]);
4b2414d0 1767
63189b78
CY		 1768 if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
1769 seq_show_option(seq, "prjjquota",
1770 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]);
4b2414d0
CY		 1771#endif
1772}
1773
cd6ee739 1774#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1775static inline void f2fs_show_compress_options(struct seq_file *seq,
1776 struct super_block *sb)
1777{
1778 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1779 char *algtype = "";
1780 int i;
1781
1782 if (!f2fs_sb_has_compression(sbi))
1783 return;
1784
1785 switch (F2FS_OPTION(sbi).compress_algorithm) {
1786 case COMPRESS_LZO:
1787 algtype = "lzo";
1788 break;
1789 case COMPRESS_LZ4:
1790 algtype = "lz4";
1791 break;
50cfa66f
CY		 1792 case COMPRESS_ZSTD:
1793 algtype = "zstd";
1794 break;
6d92b201
CY		 1795 case COMPRESS_LZORLE:
1796 algtype = "lzo-rle";
1797 break;
4c8ff709
CY		 1798 }
1799 seq_printf(seq, ",compress_algorithm=%s", algtype);
1800
3fde13f8
CY		 1801 if (F2FS_OPTION(sbi).compress_level)
1802 seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level);
1803
4c8ff709
CY		 1804 seq_printf(seq, ",compress_log_size=%u",
1805 F2FS_OPTION(sbi).compress_log_size);
1806
1807 for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
1808 seq_printf(seq, ",compress_extension=%s",
1809 F2FS_OPTION(sbi).extensions[i]);
1810 }
b28f047b 1811
151b1982
FC		 1812 for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) {
1813 seq_printf(seq, ",nocompress_extension=%s",
1814 F2FS_OPTION(sbi).noextensions[i]);
1815 }
1816
b28f047b
CY		 1817 if (F2FS_OPTION(sbi).compress_chksum)
1818 seq_puts(seq, ",compress_chksum");
602a16d5
DJ		 1819
1820 if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS)
1821 seq_printf(seq, ",compress_mode=%s", "fs");
1822 else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
1823 seq_printf(seq, ",compress_mode=%s", "user");
6ce19aff
CY		 1824
1825 if (test_opt(sbi, COMPRESS_CACHE))
1826 seq_puts(seq, ",compress_cache");
4c8ff709 1827}
cd6ee739 1828#endif
4c8ff709 1829
aff063e2
JK		 1830static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
1831{
1832 struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
1833
bbbc34fd
CY		 1834 if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
1835 seq_printf(seq, ",background_gc=%s", "sync");
1836 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
1837 seq_printf(seq, ",background_gc=%s", "on");
1838 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
696c018c 1839 seq_printf(seq, ",background_gc=%s", "off");
bbbc34fd 1840
5911d2d1
CY		 1841 if (test_opt(sbi, GC_MERGE))
1842 seq_puts(seq, ",gc_merge");
1843
aff063e2
JK		 1844 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
1845 seq_puts(seq, ",disable_roll_forward");
a9117eca
CY		 1846 if (test_opt(sbi, NORECOVERY))
1847 seq_puts(seq, ",norecovery");
aff063e2
JK		 1848 if (test_opt(sbi, DISCARD))
1849 seq_puts(seq, ",discard");
81621f97
ST		 1850 else
1851 seq_puts(seq, ",nodiscard");
aff063e2 1852 if (test_opt(sbi, NOHEAP))
7a20b8a6
JK		 1853 seq_puts(seq, ",no_heap");
1854 else
1855 seq_puts(seq, ",heap");
aff063e2
JK		 1856#ifdef CONFIG_F2FS_FS_XATTR
1857 if (test_opt(sbi, XATTR_USER))
1858 seq_puts(seq, ",user_xattr");
1859 else
1860 seq_puts(seq, ",nouser_xattr");
444c580f
JK		 1861 if (test_opt(sbi, INLINE_XATTR))
1862 seq_puts(seq, ",inline_xattr");
23cf7212
CY		 1863 else
1864 seq_puts(seq, ",noinline_xattr");
6afc662e
CY		 1865 if (test_opt(sbi, INLINE_XATTR_SIZE))
1866 seq_printf(seq, ",inline_xattr_size=%u",
63189b78 1867 F2FS_OPTION(sbi).inline_xattr_size);
aff063e2
JK		 1868#endif
1869#ifdef CONFIG_F2FS_FS_POSIX_ACL
1870 if (test_opt(sbi, POSIX_ACL))
1871 seq_puts(seq, ",acl");
1872 else
1873 seq_puts(seq, ",noacl");
1874#endif
1875 if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
aa43507f 1876 seq_puts(seq, ",disable_ext_identify");
8274de77
HL		 1877 if (test_opt(sbi, INLINE_DATA))
1878 seq_puts(seq, ",inline_data");
75342797
WL		 1879 else
1880 seq_puts(seq, ",noinline_data");
5efd3c6f
CY		 1881 if (test_opt(sbi, INLINE_DENTRY))
1882 seq_puts(seq, ",inline_dentry");
97c1794a
CY		 1883 else
1884 seq_puts(seq, ",noinline_dentry");
b270ad6f 1885 if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE))
6b4afdd7 1886 seq_puts(seq, ",flush_merge");
0f7b2abd
JK		 1887 if (test_opt(sbi, NOBARRIER))
1888 seq_puts(seq, ",nobarrier");
d5053a34
JK		 1889 if (test_opt(sbi, FASTBOOT))
1890 seq_puts(seq, ",fastboot");
89672159
CY		 1891 if (test_opt(sbi, EXTENT_CACHE))
1892 seq_puts(seq, ",extent_cache");
7daaea25
JK		 1893 else
1894 seq_puts(seq, ",noextent_cache");
343f40f0
CY		 1895 if (test_opt(sbi, DATA_FLUSH))
1896 seq_puts(seq, ",data_flush");
36abef4e
JK		 1897
1898 seq_puts(seq, ",mode=");
b0332a0f 1899 if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
36abef4e 1900 seq_puts(seq, "adaptive");
b0332a0f 1901 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
36abef4e 1902 seq_puts(seq, "lfs");
6691d940
DJ		 1903 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG)
1904 seq_puts(seq, "fragment:segment");
1905 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK)
1906 seq_puts(seq, "fragment:block");
63189b78 1907 seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
7e65be49 1908 if (test_opt(sbi, RESERVE_ROOT))
7c2e5963 1909 seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
63189b78
CY		 1910 F2FS_OPTION(sbi).root_reserved_blocks,
1911 from_kuid_munged(&init_user_ns,
1912 F2FS_OPTION(sbi).s_resuid),
1913 from_kgid_munged(&init_user_ns,
1914 F2FS_OPTION(sbi).s_resgid));
ec91538d 1915 if (F2FS_IO_SIZE_BITS(sbi))
c6b1867b
CX		 1916 seq_printf(seq, ",io_bits=%u",
1917 F2FS_OPTION(sbi).write_io_size_bits);
0cc0dec2 1918#ifdef CONFIG_F2FS_FAULT_INJECTION
d494500a 1919 if (test_opt(sbi, FAULT_INJECTION)) {
44529f89 1920 seq_printf(seq, ",fault_injection=%u",
63189b78 1921 F2FS_OPTION(sbi).fault_info.inject_rate);
d494500a
CY		 1922 seq_printf(seq, ",fault_type=%u",
1923 F2FS_OPTION(sbi).fault_info.inject_type);
1924 }
0cc0dec2 1925#endif
0abd675e 1926#ifdef CONFIG_QUOTA
4b2414d0
CY		 1927 if (test_opt(sbi, QUOTA))
1928 seq_puts(seq, ",quota");
0abd675e
CY		 1929 if (test_opt(sbi, USRQUOTA))
1930 seq_puts(seq, ",usrquota");
1931 if (test_opt(sbi, GRPQUOTA))
1932 seq_puts(seq, ",grpquota");
5c57132e
CY		 1933 if (test_opt(sbi, PRJQUOTA))
1934 seq_puts(seq, ",prjquota");
0cc0dec2 1935#endif
4b2414d0 1936 f2fs_show_quota_options(seq, sbi->sb);
63189b78 1937 if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER)
0cdd3195 1938 seq_printf(seq, ",whint_mode=%s", "user-based");
63189b78 1939 else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS)
f2e703f9 1940 seq_printf(seq, ",whint_mode=%s", "fs-based");
ed318a6c
EB		 1941
1942 fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb);
aff063e2 1943
27aacd28
ST		 1944 if (sbi->sb->s_flags & SB_INLINECRYPT)
1945 seq_puts(seq, ",inlinecrypt");
1946
63189b78 1947 if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
07939627 1948 seq_printf(seq, ",alloc_mode=%s", "default");
63189b78 1949 else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
07939627 1950 seq_printf(seq, ",alloc_mode=%s", "reuse");
93cf93f1 1951
4354994f 1952 if (test_opt(sbi, DISABLE_CHECKPOINT))
4d3aed70
DR		 1953 seq_printf(seq, ",checkpoint=disable:%u",
1954 F2FS_OPTION(sbi).unusable_cap);
261eeb9c
DJ		 1955 if (test_opt(sbi, MERGE_CHECKPOINT))
1956 seq_puts(seq, ",checkpoint_merge");
1957 else
1958 seq_puts(seq, ",nocheckpoint_merge");
63189b78 1959 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
93cf93f1 1960 seq_printf(seq, ",fsync_mode=%s", "posix");
63189b78 1961 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
93cf93f1 1962 seq_printf(seq, ",fsync_mode=%s", "strict");
dc132802
ST		 1963 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
1964 seq_printf(seq, ",fsync_mode=%s", "nobarrier");
4c8ff709 1965
1f0b067b 1966#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 1967 f2fs_show_compress_options(seq, sbi->sb);
1f0b067b 1968#endif
093749e2
CY		 1969
1970 if (test_opt(sbi, ATGC))
1971 seq_puts(seq, ",atgc");
4f993264
CY		 1972
1973 if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK)
1974 seq_printf(seq, ",discard_unit=%s", "block");
1975 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
1976 seq_printf(seq, ",discard_unit=%s", "segment");
1977 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
1978 seq_printf(seq, ",discard_unit=%s", "section");
1979
aff063e2
JK		 1980 return 0;
1981}
1982
498c5e9f
YH		 1983static void default_options(struct f2fs_sb_info *sbi)
1984{
1985 /* init some FS parameters */
a7d9fe3c
JK		 1986 if (f2fs_sb_has_readonly(sbi))
1987 F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE;
1988 else
1989 F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;
1990
63189b78
CY		 1991 F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
1992 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
1993 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
1994 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
0aa7e0f8
CY		 1995 F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
1996 F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
91faa534 1997 F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
4c8ff709
CY		 1998 F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
1999 F2FS_OPTION(sbi).compress_ext_cnt = 0;
602a16d5 2000 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
bbbc34fd 2001 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
498c5e9f 2002
27aacd28
ST		 2003 sbi->sb->s_flags &= ~SB_INLINECRYPT;
2004
39133a50 2005 set_opt(sbi, INLINE_XATTR);
498c5e9f 2006 set_opt(sbi, INLINE_DATA);
97c1794a 2007 set_opt(sbi, INLINE_DENTRY);
3e72f721 2008 set_opt(sbi, EXTENT_CACHE);
7a20b8a6 2009 set_opt(sbi, NOHEAP);
4354994f 2010 clear_opt(sbi, DISABLE_CHECKPOINT);
b5d15199 2011 set_opt(sbi, MERGE_CHECKPOINT);
4d3aed70 2012 F2FS_OPTION(sbi).unusable_cap = 0;
1751e8a6 2013 sbi->sb->s_flags |= SB_LAZYTIME;
69e9e427 2014 set_opt(sbi, FLUSH_MERGE);
f7db8dd6
CY		 2015 if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
2016 set_opt(sbi, DISCARD);
4f993264 2017 if (f2fs_sb_has_blkzoned(sbi)) {
b0332a0f 2018 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
4f993264
CY		 2019 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
2020 } else {
b0332a0f 2021 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
4f993264
CY		 2022 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
2023 }
498c5e9f
YH		 2024
2025#ifdef CONFIG_F2FS_FS_XATTR
2026 set_opt(sbi, XATTR_USER);
2027#endif
2028#ifdef CONFIG_F2FS_FS_POSIX_ACL
2029 set_opt(sbi, POSIX_ACL);
2030#endif
36dbd328 2031
d494500a 2032 f2fs_build_fault_attr(sbi, 0, 0);
498c5e9f
YH		 2033}
2034
ea676733
JK		 2035#ifdef CONFIG_QUOTA
2036static int f2fs_enable_quotas(struct super_block *sb);
2037#endif
4354994f
DR		 2038
2039static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
2040{
812a9597 2041 unsigned int s_flags = sbi->sb->s_flags;
4354994f 2042 struct cp_control cpc;
812a9597
JK		 2043 int err = 0;
2044 int ret;
4d3aed70 2045 block_t unusable;
4354994f 2046
812a9597 2047 if (s_flags & SB_RDONLY) {
dcbb4c10 2048 f2fs_err(sbi, "checkpoint=disable on readonly fs");
812a9597
JK		 2049 return -EINVAL;
2050 }
4354994f
DR		 2051 sbi->sb->s_flags |= SB_ACTIVE;
2052
4354994f
DR		 2053 f2fs_update_time(sbi, DISABLE_TIME);
2054
2055 while (!f2fs_time_over(sbi, DISABLE_TIME)) {
fb24fea7 2056 down_write(&sbi->gc_lock);
7dede886 2057 err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
812a9597
JK		 2058 if (err == -ENODATA) {
2059 err = 0;
4354994f 2060 break;
812a9597 2061 }
8f31b466 2062 if (err && err != -EAGAIN)
812a9597 2063 break;
4354994f 2064 }
4354994f 2065
812a9597
JK		 2066 ret = sync_filesystem(sbi->sb);
2067 if (ret || err) {
5f029c04 2068 err = ret ? ret : err;
812a9597
JK		 2069 goto restore_flag;
2070 }
4354994f 2071
4d3aed70
DR		 2072 unusable = f2fs_get_unusable_blocks(sbi);
2073 if (f2fs_disable_cp_again(sbi, unusable)) {
812a9597
JK		 2074 err = -EAGAIN;
2075 goto restore_flag;
2076 }
4354994f 2077
fb24fea7 2078 down_write(&sbi->gc_lock);
4354994f
DR		 2079 cpc.reason = CP_PAUSE;
2080 set_sbi_flag(sbi, SBI_CP_DISABLED);
896285ad
CY		 2081 err = f2fs_write_checkpoint(sbi, &cpc);
2082 if (err)
2083 goto out_unlock;
4354994f 2084
c9c8ed50 2085 spin_lock(&sbi->stat_lock);
4d3aed70 2086 sbi->unusable_block_count = unusable;
c9c8ed50
CY		 2087 spin_unlock(&sbi->stat_lock);
2088
896285ad 2089out_unlock:
fb24fea7 2090 up_write(&sbi->gc_lock);
812a9597 2091restore_flag:
7a88ddb5 2092 sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
812a9597 2093 return err;
4354994f
DR		 2094}
2095
2096static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
2097{
dddd3d65
JK		 2098 int retry = DEFAULT_RETRY_IO_COUNT;
2099
b0ff4fe7 2100 /* we should flush all the data to keep data consistency */
dddd3d65
JK		 2101 do {
2102 sync_inodes_sb(sbi->sb);
2103 cond_resched();
2104 congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
2105 } while (get_pages(sbi, F2FS_DIRTY_DATA) && retry--);
2106
2107 if (unlikely(retry < 0))
2108 f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
b0ff4fe7 2109
fb24fea7 2110 down_write(&sbi->gc_lock);
4354994f
DR		 2111 f2fs_dirty_to_prefree(sbi);
2112
2113 clear_sbi_flag(sbi, SBI_CP_DISABLED);
2114 set_sbi_flag(sbi, SBI_IS_DIRTY);
fb24fea7 2115 up_write(&sbi->gc_lock);
4354994f
DR		 2116
2117 f2fs_sync_fs(sbi->sb, 1);
2118}
2119
696c018c
NJ		 2120static int f2fs_remount(struct super_block *sb, int *flags, char *data)
2121{
2122 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2123 struct f2fs_mount_info org_mount_opt;
0abd675e 2124 unsigned long old_sb_flags;
63189b78 2125 int err;
3fd97359
CY		 2126 bool need_restart_gc = false, need_stop_gc = false;
2127 bool need_restart_ckpt = false, need_stop_ckpt = false;
2128 bool need_restart_flush = false, need_stop_flush = false;
4d674904 2129 bool need_restart_discard = false, need_stop_discard = false;
9cd81ce3 2130 bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
277afbde 2131 bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
1f78adfa 2132 bool no_io_align = !F2FS_IO_ALIGNED(sbi);
093749e2 2133 bool no_atgc = !test_opt(sbi, ATGC);
4d674904 2134 bool no_discard = !test_opt(sbi, DISCARD);
6ce19aff 2135 bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
4f993264 2136 bool block_unit_discard = f2fs_block_unit_discard(sbi);
4d674904 2137 struct discard_cmd_control *dcc;
4b2414d0 2138#ifdef CONFIG_QUOTA
4b2414d0
CY		 2139 int i, j;
2140#endif
696c018c
NJ		 2141
2142 /*
2143 * Save the old mount options in case we
2144 * need to restore them.
2145 */
2146 org_mount_opt = sbi->mount_opt;
0abd675e 2147 old_sb_flags = sb->s_flags;
696c018c 2148
4b2414d0 2149#ifdef CONFIG_QUOTA
63189b78 2150 org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt;
4b2414d0 2151 for (i = 0; i < MAXQUOTAS; i++) {
63189b78
CY		 2152 if (F2FS_OPTION(sbi).s_qf_names[i]) {
2153 org_mount_opt.s_qf_names[i] =
2154 kstrdup(F2FS_OPTION(sbi).s_qf_names[i],
2155 GFP_KERNEL);
2156 if (!org_mount_opt.s_qf_names[i]) {
4b2414d0 2157 for (j = 0; j < i; j++)
ba87a45c 2158 kfree(org_mount_opt.s_qf_names[j]);
4b2414d0
CY		 2159 return -ENOMEM;
2160 }
2161 } else {
63189b78 2162 org_mount_opt.s_qf_names[i] = NULL;
4b2414d0
CY		 2163 }
2164 }
2165#endif
2166
df728b0f 2167 /* recover superblocks we couldn't write due to previous RO mount */
1751e8a6 2168 if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
df728b0f 2169 err = f2fs_commit_super(sbi, false);
dcbb4c10
JP		 2170 f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
2171 err);
df728b0f
JK		 2172 if (!err)
2173 clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
2174 }
2175
498c5e9f 2176 default_options(sbi);
26666c8a 2177
696c018c 2178 /* parse mount options */
ed318a6c 2179 err = parse_options(sb, data, true);
696c018c
NJ		 2180 if (err)
2181 goto restore_opts;
2182
2183 /*
2184 * Previous and new state of filesystem is RO,
876dc59e 2185 * so skip checking GC and FLUSH_MERGE conditions.
696c018c 2186 */
1751e8a6 2187 if (f2fs_readonly(sb) && (*flags & SB_RDONLY))
696c018c
NJ		 2188 goto skip;
2189
a7d9fe3c
JK		 2190 if (f2fs_sb_has_readonly(sbi) && !(*flags & SB_RDONLY)) {
2191 err = -EROFS;
2192 goto restore_opts;
2193 }
2194
ea676733 2195#ifdef CONFIG_QUOTA
1751e8a6 2196 if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) {
0abd675e
CY		 2197 err = dquot_suspend(sb, -1);
2198 if (err < 0)
2199 goto restore_opts;
4354994f 2200 } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
0abd675e 2201 /* dquot_resume needs RW */
1751e8a6 2202 sb->s_flags &= ~SB_RDONLY;
ea676733
JK		 2203 if (sb_any_quota_suspended(sb)) {
2204 dquot_resume(sb, -1);
7beb01f7 2205 } else if (f2fs_sb_has_quota_ino(sbi)) {
ea676733
JK		 2206 err = f2fs_enable_quotas(sb);
2207 if (err)
2208 goto restore_opts;
2209 }
0abd675e 2210 }
ea676733 2211#endif
093749e2
CY		 2212 /* disallow enable atgc dynamically */
2213 if (no_atgc == !!test_opt(sbi, ATGC)) {
2214 err = -EINVAL;
2215 f2fs_warn(sbi, "switch atgc option is not allowed");
2216 goto restore_opts;
2217 }
2218
9cd81ce3
CY		 2219 /* disallow enable/disable extent_cache dynamically */
2220 if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) {
2221 err = -EINVAL;
dcbb4c10 2222 f2fs_warn(sbi, "switch extent_cache option is not allowed");
9cd81ce3
CY		 2223 goto restore_opts;
2224 }
2225
1f78adfa
CY		 2226 if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
2227 err = -EINVAL;
2228 f2fs_warn(sbi, "switch io_bits option is not allowed");
2229 goto restore_opts;
2230 }
2231
6ce19aff
CY		 2232 if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) {
2233 err = -EINVAL;
2234 f2fs_warn(sbi, "switch compress_cache option is not allowed");
2235 goto restore_opts;
2236 }
2237
4f993264
CY		 2238 if (block_unit_discard != f2fs_block_unit_discard(sbi)) {
2239 err = -EINVAL;
2240 f2fs_warn(sbi, "switch discard_unit option is not allowed");
2241 goto restore_opts;
2242 }
2243
4354994f
DR		 2244 if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
2245 err = -EINVAL;
dcbb4c10 2246 f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
4354994f
DR		 2247 goto restore_opts;
2248 }
2249
696c018c
NJ		 2250 /*
2251 * We stop the GC thread if FS is mounted as RO
2252 * or if background_gc = off is passed in mount
2253 * option. Also sync the filesystem.
2254 */
bbbc34fd 2255 if ((*flags & SB_RDONLY) ||
5911d2d1
CY		 2256 (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF &&
2257 !test_opt(sbi, GC_MERGE))) {
696c018c 2258 if (sbi->gc_thread) {
4d57b86d 2259 f2fs_stop_gc_thread(sbi);
876dc59e 2260 need_restart_gc = true;
696c018c 2261 }
aba291b3 2262 } else if (!sbi->gc_thread) {
4d57b86d 2263 err = f2fs_start_gc_thread(sbi);
696c018c
NJ		 2264 if (err)
2265 goto restore_opts;
876dc59e
GZ		 2266 need_stop_gc = true;
2267 }
2268
63189b78
CY		 2269 if (*flags & SB_RDONLY ||
2270 F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) {
faa0e55b
JK		 2271 sync_inodes_sb(sb);
2272
2273 set_sbi_flag(sbi, SBI_IS_DIRTY);
2274 set_sbi_flag(sbi, SBI_IS_CLOSE);
2275 f2fs_sync_fs(sb, 1);
2276 clear_sbi_flag(sbi, SBI_IS_CLOSE);
2277 }
2278
3f7070b0
CY		 2279 if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) ||
2280 !test_opt(sbi, MERGE_CHECKPOINT)) {
2281 f2fs_stop_ckpt_thread(sbi);
3fd97359 2282 need_restart_ckpt = true;
3f7070b0 2283 } else {
261eeb9c
DJ		 2284 err = f2fs_start_ckpt_thread(sbi);
2285 if (err) {
2286 f2fs_err(sbi,
2287 "Failed to start F2FS issue_checkpoint_thread (%d)",
2288 err);
2289 goto restore_gc;
2290 }
3fd97359 2291 need_stop_ckpt = true;
261eeb9c
DJ		 2292 }
2293
876dc59e
GZ		 2294 /*
2295 * We stop issue flush thread if FS is mounted as RO
2296 * or if flush_merge is not passed in mount option.
2297 */
1751e8a6 2298 if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) {
5eba8c5d 2299 clear_opt(sbi, FLUSH_MERGE);
4d57b86d 2300 f2fs_destroy_flush_cmd_control(sbi, false);
3fd97359 2301 need_restart_flush = true;
5eba8c5d 2302 } else {
4d57b86d 2303 err = f2fs_create_flush_cmd_control(sbi);
2163d198 2304 if (err)
3fd97359
CY		 2305 goto restore_ckpt;
2306 need_stop_flush = true;
696c018c 2307 }
3fd97359 2308
4d674904
FC		 2309 if (no_discard == !!test_opt(sbi, DISCARD)) {
2310 if (test_opt(sbi, DISCARD)) {
2311 err = f2fs_start_discard_thread(sbi);
2312 if (err)
2313 goto restore_flush;
2314 need_stop_discard = true;
2315 } else {
2316 dcc = SM_I(sbi)->dcc_info;
2317 f2fs_stop_discard_thread(sbi);
2318 if (atomic_read(&dcc->discard_cmd_cnt))
2319 f2fs_issue_discard_timeout(sbi);
2320 need_restart_discard = true;
2321 }
2322 }
2323
277afbde 2324 if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
3fd97359
CY		 2325 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
2326 err = f2fs_disable_checkpoint(sbi);
2327 if (err)
4d674904 2328 goto restore_discard;
3fd97359
CY		 2329 } else {
2330 f2fs_enable_checkpoint(sbi);
2331 }
2332 }
2333
696c018c 2334skip:
4b2414d0
CY		 2335#ifdef CONFIG_QUOTA
2336 /* Release old quota file names */
2337 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 2338 kfree(org_mount_opt.s_qf_names[i]);
4b2414d0 2339#endif
696c018c 2340 /* Update the POSIXACL Flag */
1751e8a6
LT		 2341 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
2342 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
df728b0f 2343
7e65be49 2344 limit_reserve_root(sbi);
1ae18f71 2345 adjust_unusable_cap_perc(sbi);
095680f2 2346 *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
696c018c 2347 return 0;
4d674904
FC		 2348restore_discard:
2349 if (need_restart_discard) {
2350 if (f2fs_start_discard_thread(sbi))
2351 f2fs_warn(sbi, "discard has been stopped");
2352 } else if (need_stop_discard) {
2353 f2fs_stop_discard_thread(sbi);
2354 }
3fd97359
CY		 2355restore_flush:
2356 if (need_restart_flush) {
2357 if (f2fs_create_flush_cmd_control(sbi))
2358 f2fs_warn(sbi, "background flush thread has stopped");
2359 } else if (need_stop_flush) {
2360 clear_opt(sbi, FLUSH_MERGE);
2361 f2fs_destroy_flush_cmd_control(sbi, false);
2362 }
2363restore_ckpt:
2364 if (need_restart_ckpt) {
2365 if (f2fs_start_ckpt_thread(sbi))
2366 f2fs_warn(sbi, "background ckpt thread has stopped");
2367 } else if (need_stop_ckpt) {
2368 f2fs_stop_ckpt_thread(sbi);
2369 }
876dc59e
GZ		 2370restore_gc:
2371 if (need_restart_gc) {
4d57b86d 2372 if (f2fs_start_gc_thread(sbi))
dcbb4c10 2373 f2fs_warn(sbi, "background gc thread has stopped");
876dc59e 2374 } else if (need_stop_gc) {
4d57b86d 2375 f2fs_stop_gc_thread(sbi);
876dc59e 2376 }
696c018c 2377restore_opts:
4b2414d0 2378#ifdef CONFIG_QUOTA
63189b78 2379 F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
4b2414d0 2380 for (i = 0; i < MAXQUOTAS; i++) {
ba87a45c 2381 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
63189b78 2382 F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
4b2414d0
CY		 2383 }
2384#endif
696c018c 2385 sbi->mount_opt = org_mount_opt;
0abd675e 2386 sb->s_flags = old_sb_flags;
696c018c
NJ		 2387 return err;
2388}
2389
0abd675e
CY		 2390#ifdef CONFIG_QUOTA
2391/* Read data from quotafile */
2392static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
2393 size_t len, loff_t off)
2394{
2395 struct inode *inode = sb_dqopt(sb)->files[type];
2396 struct address_space *mapping = inode->i_mapping;
2397 block_t blkidx = F2FS_BYTES_TO_BLK(off);
2398 int offset = off & (sb->s_blocksize - 1);
2399 int tocopy;
2400 size_t toread;
2401 loff_t i_size = i_size_read(inode);
2402 struct page *page;
2403 char *kaddr;
2404
2405 if (off > i_size)
2406 return 0;
2407
2408 if (off + len > i_size)
2409 len = i_size - off;
2410 toread = len;
2411 while (toread > 0) {
2412 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
2413repeat:
02117b8a 2414 page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
4e46a023
JK		 2415 if (IS_ERR(page)) {
2416 if (PTR_ERR(page) == -ENOMEM) {
5df7731f
CY		 2417 congestion_wait(BLK_RW_ASYNC,
2418 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2419 goto repeat;
2420 }
af033b2a 2421 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2422 return PTR_ERR(page);
4e46a023 2423 }
0abd675e
CY		 2424
2425 lock_page(page);
2426
2427 if (unlikely(page->mapping != mapping)) {
2428 f2fs_put_page(page, 1);
2429 goto repeat;
2430 }
2431 if (unlikely(!PageUptodate(page))) {
2432 f2fs_put_page(page, 1);
af033b2a 2433 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e
CY		 2434 return -EIO;
2435 }
2436
2437 kaddr = kmap_atomic(page);
2438 memcpy(data, kaddr + offset, tocopy);
2439 kunmap_atomic(kaddr);
2440 f2fs_put_page(page, 1);
2441
2442 offset = 0;
2443 toread -= tocopy;
2444 data += tocopy;
2445 blkidx++;
2446 }
2447 return len;
2448}
2449
2450/* Write to quotafile */
2451static ssize_t f2fs_quota_write(struct super_block *sb, int type,
2452 const char *data, size_t len, loff_t off)
2453{
2454 struct inode *inode = sb_dqopt(sb)->files[type];
2455 struct address_space *mapping = inode->i_mapping;
2456 const struct address_space_operations *a_ops = mapping->a_ops;
2457 int offset = off & (sb->s_blocksize - 1);
2458 size_t towrite = len;
2459 struct page *page;
62f63eea 2460 void *fsdata = NULL;
0abd675e
CY		 2461 char *kaddr;
2462 int err = 0;
2463 int tocopy;
2464
2465 while (towrite > 0) {
2466 tocopy = min_t(unsigned long, sb->s_blocksize - offset,
2467 towrite);
4e46a023 2468retry:
0abd675e 2469 err = a_ops->write_begin(NULL, mapping, off, tocopy, 0,
62f63eea 2470 &page, &fsdata);
4e46a023
JK		 2471 if (unlikely(err)) {
2472 if (err == -ENOMEM) {
5df7731f
CY		 2473 congestion_wait(BLK_RW_ASYNC,
2474 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2475 goto retry;
2476 }
af033b2a 2477 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2478 break;
4e46a023 2479 }
0abd675e
CY		 2480
2481 kaddr = kmap_atomic(page);
2482 memcpy(kaddr + offset, data, tocopy);
2483 kunmap_atomic(kaddr);
2484 flush_dcache_page(page);
2485
2486 a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
62f63eea 2487 page, fsdata);
0abd675e
CY		 2488 offset = 0;
2489 towrite -= tocopy;
2490 off += tocopy;
2491 data += tocopy;
2492 cond_resched();
2493 }
2494
2495 if (len == towrite)
6e5b5d41 2496 return err;
0abd675e
CY		 2497 inode->i_mtime = inode->i_ctime = current_time(inode);
2498 f2fs_mark_inode_dirty_sync(inode, false);
2499 return len - towrite;
2500}
2501
2502static struct dquot **f2fs_get_dquots(struct inode *inode)
2503{
2504 return F2FS_I(inode)->i_dquot;
2505}
2506
2507static qsize_t *f2fs_get_reserved_space(struct inode *inode)
2508{
2509 return &F2FS_I(inode)->i_reserved_quota;
2510}
2511
4b2414d0
CY		 2512static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
2513{
af033b2a 2514 if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2515 f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
af033b2a
CY		 2516 return 0;
2517 }
2518
63189b78
CY		 2519 return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
2520 F2FS_OPTION(sbi).s_jquota_fmt, type);
4b2414d0
CY		 2521}
2522
ea676733 2523int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
4b2414d0 2524{
ea676733
JK		 2525 int enabled = 0;
2526 int i, err;
2527
7beb01f7 2528 if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
ea676733
JK		 2529 err = f2fs_enable_quotas(sbi->sb);
2530 if (err) {
dcbb4c10 2531 f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
ea676733
JK		 2532 return 0;
2533 }
2534 return 1;
2535 }
4b2414d0
CY		 2536
2537 for (i = 0; i < MAXQUOTAS; i++) {
63189b78 2538 if (F2FS_OPTION(sbi).s_qf_names[i]) {
ea676733
JK		 2539 err = f2fs_quota_on_mount(sbi, i);
2540 if (!err) {
2541 enabled = 1;
2542 continue;
2543 }
dcbb4c10
JP		 2544 f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
2545 err, i);
4b2414d0
CY		 2546 }
2547 }
ea676733
JK		 2548 return enabled;
2549}
2550
2551static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
2552 unsigned int flags)
2553{
2554 struct inode *qf_inode;
2555 unsigned long qf_inum;
2556 int err;
2557
7beb01f7 2558 BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
ea676733
JK		 2559
2560 qf_inum = f2fs_qf_ino(sb, type);
2561 if (!qf_inum)
2562 return -EPERM;
2563
2564 qf_inode = f2fs_iget(sb, qf_inum);
2565 if (IS_ERR(qf_inode)) {
dcbb4c10 2566 f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
ea676733
JK		 2567 return PTR_ERR(qf_inode);
2568 }
2569
2570 /* Don't account quota for quota files to avoid recursion */
2571 qf_inode->i_flags |= S_NOQUOTA;
7212b95e 2572 err = dquot_load_quota_inode(qf_inode, type, format_id, flags);
ea676733
JK		 2573 iput(qf_inode);
2574 return err;
2575}
2576
2577static int f2fs_enable_quotas(struct super_block *sb)
2578{
dcbb4c10 2579 struct f2fs_sb_info *sbi = F2FS_SB(sb);
ea676733
JK		 2580 int type, err = 0;
2581 unsigned long qf_inum;
2582 bool quota_mopt[MAXQUOTAS] = {
dcbb4c10
JP		 2583 test_opt(sbi, USRQUOTA),
2584 test_opt(sbi, GRPQUOTA),
2585 test_opt(sbi, PRJQUOTA),
ea676733
JK		 2586 };
2587
af033b2a 2588 if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2589 f2fs_err(sbi, "quota file may be corrupted, skip loading it");
af033b2a
CY		 2590 return 0;
2591 }
2592
2593 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
2594
ea676733
JK		 2595 for (type = 0; type < MAXQUOTAS; type++) {
2596 qf_inum = f2fs_qf_ino(sb, type);
2597 if (qf_inum) {
2598 err = f2fs_quota_enable(sb, type, QFMT_VFS_V1,
2599 DQUOT_USAGE_ENABLED |
2600 (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
2601 if (err) {
dcbb4c10
JP		 2602 f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
2603 type, err);
ea676733
JK		 2604 for (type--; type >= 0; type--)
2605 dquot_quota_off(sb, type);
af033b2a
CY		 2606 set_sbi_flag(F2FS_SB(sb),
2607 SBI_QUOTA_NEED_REPAIR);
ea676733
JK		 2608 return err;
2609 }
4b2414d0
CY		 2610 }
2611 }
ea676733 2612 return 0;
4b2414d0
CY		 2613}
2614
9de71ede
CY		 2615static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type)
2616{
2617 struct quota_info *dqopt = sb_dqopt(sbi->sb);
2618 struct address_space *mapping = dqopt->files[type]->i_mapping;
2619 int ret = 0;
2620
2621 ret = dquot_writeback_dquots(sbi->sb, type);
2622 if (ret)
2623 goto out;
2624
2625 ret = filemap_fdatawrite(mapping);
2626 if (ret)
2627 goto out;
2628
2629 /* if we are using journalled quota */
2630 if (is_journalled_quota(sbi))
2631 goto out;
2632
2633 ret = filemap_fdatawait(mapping);
2634
2635 truncate_inode_pages(&dqopt->files[type]->i_data, 0);
2636out:
2637 if (ret)
2638 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2639 return ret;
2640}
2641
af033b2a 2642int f2fs_quota_sync(struct super_block *sb, int type)
0abd675e 2643{
af033b2a 2644 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0abd675e
CY		 2645 struct quota_info *dqopt = sb_dqopt(sb);
2646 int cnt;
2647 int ret;
2648
0abd675e
CY		 2649 /*
2650 * Now when everything is written we can discard the pagecache so
2651 * that userspace sees the changes.
2652 */
2653 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
af033b2a 2654
0abd675e
CY		 2655 if (type != -1 && cnt != type)
2656 continue;
0abd675e 2657
9de71ede
CY		 2658 if (!sb_has_quota_active(sb, type))
2659 return 0;
af033b2a 2660
9de71ede 2661 inode_lock(dqopt->files[cnt]);
af033b2a 2662
9de71ede
CY		 2663 /*
2664 * do_quotactl
2665 * f2fs_quota_sync
2666 * down_read(quota_sem)
2667 * dquot_writeback_dquots()
2668 * f2fs_dquot_commit
2669 * block_operation
2670 * down_read(quota_sem)
2671 */
2672 f2fs_lock_op(sbi);
2673 down_read(&sbi->quota_sem);
af033b2a 2674
9de71ede
CY		 2675 ret = f2fs_quota_sync_file(sbi, cnt);
2676
2677 up_read(&sbi->quota_sem);
2678 f2fs_unlock_op(sbi);
0abd675e 2679
0abd675e 2680 inode_unlock(dqopt->files[cnt]);
9de71ede
CY		 2681
2682 if (ret)
2683 break;
0abd675e 2684 }
af033b2a 2685 return ret;
0abd675e
CY		 2686}
2687
2688static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
2689 const struct path *path)
2690{
2691 struct inode *inode;
2692 int err;
2693
fe973b06
CY		 2694 /* if quota sysfile exists, deny enabling quota with specific file */
2695 if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
2696 f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
2697 return -EBUSY;
2698 }
2699
9a20d391 2700 err = f2fs_quota_sync(sb, type);
0abd675e
CY		 2701 if (err)
2702 return err;
2703
2704 err = dquot_quota_on(sb, type, format_id, path);
2705 if (err)
2706 return err;
2707
2708 inode = d_inode(path->dentry);
2709
2710 inode_lock(inode);
59c84408 2711 F2FS_I(inode)->i_flags |= F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL;
9149a5eb 2712 f2fs_set_inode_flags(inode);
0abd675e
CY		 2713 inode_unlock(inode);
2714 f2fs_mark_inode_dirty_sync(inode, false);
2715
2716 return 0;
2717}
2718
fe973b06 2719static int __f2fs_quota_off(struct super_block *sb, int type)
0abd675e
CY		 2720{
2721 struct inode *inode = sb_dqopt(sb)->files[type];
2722 int err;
2723
2724 if (!inode || !igrab(inode))
2725 return dquot_quota_off(sb, type);
2726
cda9cc59
YH		 2727 err = f2fs_quota_sync(sb, type);
2728 if (err)
2729 goto out_put;
0abd675e
CY		 2730
2731 err = dquot_quota_off(sb, type);
7beb01f7 2732 if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
0abd675e
CY		 2733 goto out_put;
2734
2735 inode_lock(inode);
59c84408 2736 F2FS_I(inode)->i_flags &= ~(F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL);
9149a5eb 2737 f2fs_set_inode_flags(inode);
0abd675e
CY		 2738 inode_unlock(inode);
2739 f2fs_mark_inode_dirty_sync(inode, false);
2740out_put:
2741 iput(inode);
2742 return err;
2743}
2744
fe973b06
CY		 2745static int f2fs_quota_off(struct super_block *sb, int type)
2746{
2747 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2748 int err;
2749
2750 err = __f2fs_quota_off(sb, type);
2751
2752 /*
2753 * quotactl can shutdown journalled quota, result in inconsistence
2754 * between quota record and fs data by following updates, tag the
2755 * flag to let fsck be aware of it.
2756 */
2757 if (is_journalled_quota(sbi))
2758 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2759 return err;
2760}
2761
4b2414d0 2762void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2763{
2764 int type;
cda9cc59
YH		 2765 int err;
2766
2767 for (type = 0; type < MAXQUOTAS; type++) {
fe973b06 2768 err = __f2fs_quota_off(sb, type);
cda9cc59
YH		 2769 if (err) {
2770 int ret = dquot_quota_off(sb, type);
0abd675e 2771
dcbb4c10
JP		 2772 f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
2773 type, err, ret);
af033b2a 2774 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
cda9cc59
YH		 2775 }
2776 }
0e0667b6
JK		 2777 /*
2778 * In case of checkpoint=disable, we must flush quota blocks.
2779 * This can cause NULL exception for node_inode in end_io, since
2780 * put_super already dropped it.
2781 */
2782 sync_filesystem(sb);
0abd675e
CY		 2783}
2784
26b5a079
SY		 2785static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
2786{
2787 struct quota_info *dqopt = sb_dqopt(sb);
2788 int type;
2789
2790 for (type = 0; type < MAXQUOTAS; type++) {
2791 if (!dqopt->files[type])
2792 continue;
2793 f2fs_inode_synced(dqopt->files[type]);
2794 }
2795}
2796
af033b2a
CY		 2797static int f2fs_dquot_commit(struct dquot *dquot)
2798{
db6ec53b 2799 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2800 int ret;
2801
2c4e0c52 2802 down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
af033b2a
CY		 2803 ret = dquot_commit(dquot);
2804 if (ret < 0)
db6ec53b
JK		 2805 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2806 up_read(&sbi->quota_sem);
af033b2a
CY		 2807 return ret;
2808}
2809
2810static int f2fs_dquot_acquire(struct dquot *dquot)
2811{
db6ec53b 2812 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2813 int ret;
2814
db6ec53b 2815 down_read(&sbi->quota_sem);
af033b2a
CY		 2816 ret = dquot_acquire(dquot);
2817 if (ret < 0)
db6ec53b
JK		 2818 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2819 up_read(&sbi->quota_sem);
af033b2a
CY		 2820 return ret;
2821}
2822
2823static int f2fs_dquot_release(struct dquot *dquot)
2824{
db6ec53b 2825 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
2c4e0c52 2826 int ret = dquot_release(dquot);
af033b2a 2827
af033b2a 2828 if (ret < 0)
db6ec53b 2829 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2830 return ret;
2831}
2832
2833static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
2834{
2835 struct super_block *sb = dquot->dq_sb;
2836 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2837 int ret = dquot_mark_dquot_dirty(dquot);
af033b2a
CY		 2838
2839 /* if we are using journalled quota */
2840 if (is_journalled_quota(sbi))
2841 set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
2842
2843 return ret;
2844}
2845
2846static int f2fs_dquot_commit_info(struct super_block *sb, int type)
2847{
db6ec53b 2848 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2849 int ret = dquot_commit_info(sb, type);
af033b2a 2850
af033b2a 2851 if (ret < 0)
db6ec53b 2852 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2853 return ret;
2854}
26b5a079 2855
94b1e10e 2856static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
5c57132e
CY		 2857{
2858 *projid = F2FS_I(inode)->i_projid;
2859 return 0;
2860}
2861
0abd675e
CY		 2862static const struct dquot_operations f2fs_quota_operations = {
2863 .get_reserved_space = f2fs_get_reserved_space,
af033b2a
CY		 2864 .write_dquot = f2fs_dquot_commit,
2865 .acquire_dquot = f2fs_dquot_acquire,
2866 .release_dquot = f2fs_dquot_release,
2867 .mark_dirty = f2fs_dquot_mark_dquot_dirty,
2868 .write_info = f2fs_dquot_commit_info,
0abd675e
CY		 2869 .alloc_dquot = dquot_alloc,
2870 .destroy_dquot = dquot_destroy,
5c57132e 2871 .get_projid = f2fs_get_projid,
0abd675e
CY		 2872 .get_next_id = dquot_get_next_id,
2873};
2874
2875static const struct quotactl_ops f2fs_quotactl_ops = {
2876 .quota_on = f2fs_quota_on,
2877 .quota_off = f2fs_quota_off,
2878 .quota_sync = f2fs_quota_sync,
2879 .get_state = dquot_get_state,
2880 .set_info = dquot_set_dqinfo,
2881 .get_dqblk = dquot_get_dqblk,
2882 .set_dqblk = dquot_set_dqblk,
2883 .get_nextdqblk = dquot_get_next_dqblk,
2884};
2885#else
af033b2a
CY		 2886int f2fs_quota_sync(struct super_block *sb, int type)
2887{
2888 return 0;
2889}
2890
4b2414d0 2891void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2892{
2893}
2894#endif
2895
f62fc9f9 2896static const struct super_operations f2fs_sops = {
aff063e2 2897 .alloc_inode = f2fs_alloc_inode,
d01718a0 2898 .free_inode = f2fs_free_inode,
531ad7d5 2899 .drop_inode = f2fs_drop_inode,
aff063e2 2900 .write_inode = f2fs_write_inode,
b3783873 2901 .dirty_inode = f2fs_dirty_inode,
aff063e2 2902 .show_options = f2fs_show_options,
0abd675e
CY		 2903#ifdef CONFIG_QUOTA
2904 .quota_read = f2fs_quota_read,
2905 .quota_write = f2fs_quota_write,
2906 .get_dquots = f2fs_get_dquots,
2907#endif
aff063e2
JK		 2908 .evict_inode = f2fs_evict_inode,
2909 .put_super = f2fs_put_super,
2910 .sync_fs = f2fs_sync_fs,
d6212a5f
CL		 2911 .freeze_fs = f2fs_freeze,
2912 .unfreeze_fs = f2fs_unfreeze,
aff063e2 2913 .statfs = f2fs_statfs,
696c018c 2914 .remount_fs = f2fs_remount,
aff063e2
JK		 2915};
2916
643fa961 2917#ifdef CONFIG_FS_ENCRYPTION
0b81d077
JK		 2918static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
2919{
2920 return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2921 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2922 ctx, len, NULL);
2923}
2924
2925static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
2926 void *fs_data)
2927{
b7c409de
SY		 2928 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2929
2930 /*
2931 * Encrypting the root directory is not allowed because fsck
2932 * expects lost+found directory to exist and remain unencrypted
2933 * if LOST_FOUND feature is enabled.
2934 *
2935 */
7beb01f7 2936 if (f2fs_sb_has_lost_found(sbi) &&
b7c409de
SY		 2937 inode->i_ino == F2FS_ROOT_INO(sbi))
2938 return -EPERM;
2939
0b81d077
JK		 2940 return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2941 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2942 ctx, len, fs_data, XATTR_CREATE);
2943}
2944
ac4acb1f 2945static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb)
ff62af20 2946{
ac4acb1f 2947 return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy;
ff62af20
SY		 2948}
2949
0eee17e3
EB		 2950static bool f2fs_has_stable_inodes(struct super_block *sb)
2951{
2952 return true;
2953}
2954
2955static void f2fs_get_ino_and_lblk_bits(struct super_block *sb,
2956 int *ino_bits_ret, int *lblk_bits_ret)
2957{
2958 *ino_bits_ret = 8 * sizeof(nid_t);
2959 *lblk_bits_ret = 8 * sizeof(block_t);
2960}
2961
27aacd28
ST		 2962static int f2fs_get_num_devices(struct super_block *sb)
2963{
2964 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2965
2966 if (f2fs_is_multi_device(sbi))
2967 return sbi->s_ndevs;
2968 return 1;
2969}
2970
2971static void f2fs_get_devices(struct super_block *sb,
2972 struct request_queue **devs)
2973{
2974 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2975 int i;
2976
2977 for (i = 0; i < sbi->s_ndevs; i++)
2978 devs[i] = bdev_get_queue(FDEV(i).bdev);
2979}
2980
6f69f0ed 2981static const struct fscrypt_operations f2fs_cryptops = {
0eee17e3
EB		 2982 .key_prefix = "f2fs:",
2983 .get_context = f2fs_get_context,
2984 .set_context = f2fs_set_context,
ac4acb1f 2985 .get_dummy_policy = f2fs_get_dummy_policy,
0eee17e3
EB		 2986 .empty_dir = f2fs_empty_dir,
2987 .max_namelen = F2FS_NAME_LEN,
2988 .has_stable_inodes = f2fs_has_stable_inodes,
2989 .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
27aacd28
ST		 2990 .get_num_devices = f2fs_get_num_devices,
2991 .get_devices = f2fs_get_devices,
0b81d077 2992};
0b81d077
JK		 2993#endif
2994
aff063e2
JK		 2995static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
2996 u64 ino, u32 generation)
2997{
2998 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2999 struct inode *inode;
3000
4d57b86d 3001 if (f2fs_check_nid_range(sbi, ino))
910bb12d 3002 return ERR_PTR(-ESTALE);
aff063e2
JK		 3003
3004 /*
3005 * f2fs_iget isn't quite right if the inode is currently unallocated!
3006 * However f2fs_iget currently does appropriate checks to handle stale
3007 * inodes so everything is OK.
3008 */
3009 inode = f2fs_iget(sb, ino);
3010 if (IS_ERR(inode))
3011 return ERR_CAST(inode);
6bacf52f 3012 if (unlikely(generation && inode->i_generation != generation)) {
aff063e2
JK		 3013 /* we didn't find the right inode.. */
3014 iput(inode);
3015 return ERR_PTR(-ESTALE);
3016 }
3017 return inode;
3018}
3019
3020static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
3021 int fh_len, int fh_type)
3022{
3023 return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
3024 f2fs_nfs_get_inode);
3025}
3026
3027static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid,
3028 int fh_len, int fh_type)
3029{
3030 return generic_fh_to_parent(sb, fid, fh_len, fh_type,
3031 f2fs_nfs_get_inode);
3032}
3033
3034static const struct export_operations f2fs_export_ops = {
3035 .fh_to_dentry = f2fs_fh_to_dentry,
3036 .fh_to_parent = f2fs_fh_to_parent,
3037 .get_parent = f2fs_get_parent,
3038};
3039
6d1451bf 3040loff_t max_file_blocks(struct inode *inode)
aff063e2 3041{
7a2af766 3042 loff_t result = 0;
6d1451bf 3043 loff_t leaf_count;
aff063e2 3044
7a2af766
CY		 3045 /*
3046 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
6afc662e 3047 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
7a2af766
CY		 3048 * space in inode.i_addr, it will be more safe to reassign
3049 * result as zero.
3050 */
3051
6d1451bf
CX		 3052 if (inode && f2fs_compressed_file(inode))
3053 leaf_count = ADDRS_PER_BLOCK(inode);
3054 else
3055 leaf_count = DEF_ADDRS_PER_BLOCK;
3056
aff063e2
JK		 3057 /* two direct node blocks */
3058 result += (leaf_count * 2);
3059
3060 /* two indirect node blocks */
3061 leaf_count *= NIDS_PER_BLOCK;
3062 result += (leaf_count * 2);
3063
3064 /* one double indirect node block */
3065 leaf_count *= NIDS_PER_BLOCK;
3066 result += leaf_count;
3067
aff063e2
JK		 3068 return result;
3069}
3070
fd694733
JK		 3071static int __f2fs_commit_super(struct buffer_head *bh,
3072 struct f2fs_super_block *super)
3073{
3074 lock_buffer(bh);
3075 if (super)
3076 memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
fd694733
JK		 3077 set_buffer_dirty(bh);
3078 unlock_buffer(bh);
3079
3080 /* it's rare case, we can do fua all the time */
3adc5fcb 3081 return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
fd694733
JK		 3082}
3083
df728b0f 3084static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
fd694733 3085 struct buffer_head *bh)
9a59b62f 3086{
fd694733
JK		 3087 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3088 (bh->b_data + F2FS_SUPER_OFFSET);
df728b0f 3089 struct super_block *sb = sbi->sb;
9a59b62f
CY		 3090 u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
3091 u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
3092 u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
3093 u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
3094 u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
3095 u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
3096 u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
3097 u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
3098 u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
3099 u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
3100 u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
3101 u32 segment_count = le32_to_cpu(raw_super->segment_count);
3102 u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
fd694733
JK		 3103 u64 main_end_blkaddr = main_blkaddr +
3104 (segment_count_main << log_blocks_per_seg);
3105 u64 seg_end_blkaddr = segment0_blkaddr +
3106 (segment_count << log_blocks_per_seg);
9a59b62f
CY		 3107
3108 if (segment0_blkaddr != cp_blkaddr) {
dcbb4c10
JP		 3109 f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
3110 segment0_blkaddr, cp_blkaddr);
9a59b62f
CY		 3111 return true;
3112 }
3113
3114 if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
3115 sit_blkaddr) {
dcbb4c10
JP		 3116 f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
3117 cp_blkaddr, sit_blkaddr,
3118 segment_count_ckpt << log_blocks_per_seg);
9a59b62f
CY		 3119 return true;
3120 }
3121
3122 if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
3123 nat_blkaddr) {
dcbb4c10
JP		 3124 f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
3125 sit_blkaddr, nat_blkaddr,
3126 segment_count_sit << log_blocks_per_seg);
9a59b62f
CY		 3127 return true;
3128 }
3129
3130 if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
3131 ssa_blkaddr) {
dcbb4c10
JP		 3132 f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
3133 nat_blkaddr, ssa_blkaddr,
3134 segment_count_nat << log_blocks_per_seg);
9a59b62f
CY		 3135 return true;
3136 }
3137
3138 if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
3139 main_blkaddr) {
dcbb4c10
JP		 3140 f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
3141 ssa_blkaddr, main_blkaddr,
3142 segment_count_ssa << log_blocks_per_seg);
9a59b62f
CY		 3143 return true;
3144 }
3145
fd694733 3146 if (main_end_blkaddr > seg_end_blkaddr) {
d89f5891
WX		 3147 f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)",
3148 main_blkaddr, seg_end_blkaddr,
dcbb4c10 3149 segment_count_main << log_blocks_per_seg);
9a59b62f 3150 return true;
fd694733
JK		 3151 } else if (main_end_blkaddr < seg_end_blkaddr) {
3152 int err = 0;
3153 char *res;
3154
3155 /* fix in-memory information all the time */
3156 raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
3157 segment0_blkaddr) >> log_blocks_per_seg);
3158
3159 if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) {
df728b0f 3160 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
fd694733
JK		 3161 res = "internally";
3162 } else {
3163 err = __f2fs_commit_super(bh, NULL);
3164 res = err ? "failed" : "done";
3165 }
d89f5891
WX		 3166 f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)",
3167 res, main_blkaddr, seg_end_blkaddr,
dcbb4c10 3168 segment_count_main << log_blocks_per_seg);
fd694733
JK		 3169 if (err)
3170 return true;
9a59b62f 3171 }
9a59b62f
CY		 3172 return false;
3173}
3174
df728b0f 3175static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
fd694733 3176 struct buffer_head *bh)
aff063e2 3177{
f99ba9ad 3178 block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main;
0cfe75c5 3179 block_t total_sections, blocks_per_seg;
fd694733
JK		 3180 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3181 (bh->b_data + F2FS_SUPER_OFFSET);
d440c52d
JZ		 3182 size_t crc_offset = 0;
3183 __u32 crc = 0;
3184
38fb6d0e
IZ		 3185 if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
3186 f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
3187 F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
3188 return -EINVAL;
3189 }
3190
d440c52d 3191 /* Check checksum_offset and crc in superblock */
7beb01f7 3192 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
d440c52d
JZ		 3193 crc_offset = le32_to_cpu(raw_super->checksum_offset);
3194 if (crc_offset !=
3195 offsetof(struct f2fs_super_block, crc)) {
dcbb4c10
JP		 3196 f2fs_info(sbi, "Invalid SB checksum offset: %zu",
3197 crc_offset);
38fb6d0e 3198 return -EFSCORRUPTED;
d440c52d
JZ		 3199 }
3200 crc = le32_to_cpu(raw_super->crc);
3201 if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
dcbb4c10 3202 f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
38fb6d0e 3203 return -EFSCORRUPTED;
d440c52d
JZ		 3204 }
3205 }
aff063e2 3206
aff063e2 3207 /* Currently, support only 4KB block size */
e584bbe8
CY		 3208 if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) {
3209 f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u",
3210 le32_to_cpu(raw_super->log_blocksize),
3211 F2FS_BLKSIZE_BITS);
38fb6d0e 3212 return -EFSCORRUPTED;
a07ef784 3213 }
5c9b4692 3214
9a59b62f
CY		 3215 /* check log blocks per segment */
3216 if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
dcbb4c10
JP		 3217 f2fs_info(sbi, "Invalid log blocks per segment (%u)",
3218 le32_to_cpu(raw_super->log_blocks_per_seg));
38fb6d0e 3219 return -EFSCORRUPTED;
9a59b62f
CY		 3220 }
3221
55cf9cb6
CY		 3222 /* Currently, support 512/1024/2048/4096 bytes sector size */
3223 if (le32_to_cpu(raw_super->log_sectorsize) >
3224 F2FS_MAX_LOG_SECTOR_SIZE ||
3225 le32_to_cpu(raw_super->log_sectorsize) <
3226 F2FS_MIN_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3227 f2fs_info(sbi, "Invalid log sectorsize (%u)",
3228 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3229 return -EFSCORRUPTED;
a07ef784 3230 }
55cf9cb6
CY		 3231 if (le32_to_cpu(raw_super->log_sectors_per_block) +
3232 le32_to_cpu(raw_super->log_sectorsize) !=
3233 F2FS_MAX_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3234 f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
3235 le32_to_cpu(raw_super->log_sectors_per_block),
3236 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3237 return -EFSCORRUPTED;
a07ef784 3238 }
9a59b62f 3239
0cfe75c5 3240 segment_count = le32_to_cpu(raw_super->segment_count);
f99ba9ad 3241 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
0cfe75c5
JK		 3242 segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3243 secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3244 total_sections = le32_to_cpu(raw_super->section_count);
3245
3246 /* blocks_per_seg should be 512, given the above check */
3247 blocks_per_seg = 1 << le32_to_cpu(raw_super->log_blocks_per_seg);
3248
3249 if (segment_count > F2FS_MAX_SEGMENT ||
3250 segment_count < F2FS_MIN_SEGMENTS) {
dcbb4c10 3251 f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
38fb6d0e 3252 return -EFSCORRUPTED;
0cfe75c5
JK		 3253 }
3254
f99ba9ad 3255 if (total_sections > segment_count_main || total_sections < 1 ||
0cfe75c5 3256 segs_per_sec > segment_count || !segs_per_sec) {
dcbb4c10
JP		 3257 f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
3258 segment_count, total_sections, segs_per_sec);
38fb6d0e 3259 return -EFSCORRUPTED;
0cfe75c5
JK		 3260 }
3261
3a22e9ac
CY		 3262 if (segment_count_main != total_sections * segs_per_sec) {
3263 f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)",
3264 segment_count_main, total_sections, segs_per_sec);
3265 return -EFSCORRUPTED;
3266 }
3267
0cfe75c5 3268 if ((segment_count / segs_per_sec) < total_sections) {
dcbb4c10
JP		 3269 f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
3270 segment_count, segs_per_sec, total_sections);
38fb6d0e 3271 return -EFSCORRUPTED;
0cfe75c5
JK		 3272 }
3273
88960068 3274 if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
dcbb4c10
JP		 3275 f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
3276 segment_count, le64_to_cpu(raw_super->block_count));
38fb6d0e 3277 return -EFSCORRUPTED;
0cfe75c5
JK		 3278 }
3279
9f701f6c
QS		 3280 if (RDEV(0).path[0]) {
3281 block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
3282 int i = 1;
3283
3284 while (i < MAX_DEVICES && RDEV(i).path[0]) {
3285 dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
3286 i++;
3287 }
3288 if (segment_count != dev_seg_count) {
3289 f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
3290 segment_count, dev_seg_count);
3291 return -EFSCORRUPTED;
3292 }
07eb1d69
CY		 3293 } else {
3294 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) &&
3295 !bdev_is_zoned(sbi->sb->s_bdev)) {
3296 f2fs_info(sbi, "Zoned block device path is missing");
3297 return -EFSCORRUPTED;
3298 }
9f701f6c
QS		 3299 }
3300
42bf546c 3301 if (secs_per_zone > total_sections || !secs_per_zone) {
dcbb4c10
JP		 3302 f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
3303 secs_per_zone, total_sections);
38fb6d0e 3304 return -EFSCORRUPTED;
0cfe75c5
JK		 3305 }
3306 if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
3307 raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
3308 (le32_to_cpu(raw_super->extension_count) +
3309 raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
dcbb4c10
JP		 3310 f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
3311 le32_to_cpu(raw_super->extension_count),
3312 raw_super->hot_ext_count,
3313 F2FS_MAX_EXTENSION);
38fb6d0e 3314 return -EFSCORRUPTED;
0cfe75c5
JK		 3315 }
3316
65ddf656
CY		 3317 if (le32_to_cpu(raw_super->cp_payload) >=
3318 (blocks_per_seg - F2FS_CP_PACKS -
3319 NR_CURSEG_PERSIST_TYPE)) {
3320 f2fs_info(sbi, "Insane cp_payload (%u >= %u)",
dcbb4c10 3321 le32_to_cpu(raw_super->cp_payload),
65ddf656
CY		 3322 blocks_per_seg - F2FS_CP_PACKS -
3323 NR_CURSEG_PERSIST_TYPE);
38fb6d0e 3324 return -EFSCORRUPTED;
0cfe75c5
JK		 3325 }
3326
9a59b62f
CY		 3327 /* check reserved ino info */
3328 if (le32_to_cpu(raw_super->node_ino) != 1 ||
3329 le32_to_cpu(raw_super->meta_ino) != 2 ||
3330 le32_to_cpu(raw_super->root_ino) != 3) {
dcbb4c10
JP		 3331 f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
3332 le32_to_cpu(raw_super->node_ino),
3333 le32_to_cpu(raw_super->meta_ino),
3334 le32_to_cpu(raw_super->root_ino));
38fb6d0e 3335 return -EFSCORRUPTED;
9a59b62f
CY		 3336 }
3337
3338 /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
df728b0f 3339 if (sanity_check_area_boundary(sbi, bh))
38fb6d0e 3340 return -EFSCORRUPTED;
9a59b62f 3341
aff063e2
JK		 3342 return 0;
3343}
3344
4d57b86d 3345int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
aff063e2
JK		 3346{
3347 unsigned int total, fsmeta;
577e3495
JK		 3348 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
3349 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2040fce8 3350 unsigned int ovp_segments, reserved_segments;
15d3042a 3351 unsigned int main_segs, blocks_per_seg;
c77ec61c
CY		 3352 unsigned int sit_segs, nat_segs;
3353 unsigned int sit_bitmap_size, nat_bitmap_size;
3354 unsigned int log_blocks_per_seg;
9dc956b2 3355 unsigned int segment_count_main;
e494c2f9 3356 unsigned int cp_pack_start_sum, cp_payload;
7b63f72f
CY		 3357 block_t user_block_count, valid_user_blocks;
3358 block_t avail_node_count, valid_node_count;
65ddf656 3359 unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks;
042be0f8 3360 int i, j;
aff063e2
JK		 3361
3362 total = le32_to_cpu(raw_super->segment_count);
3363 fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
c77ec61c
CY		 3364 sit_segs = le32_to_cpu(raw_super->segment_count_sit);
3365 fsmeta += sit_segs;
3366 nat_segs = le32_to_cpu(raw_super->segment_count_nat);
3367 fsmeta += nat_segs;
aff063e2
JK		 3368 fsmeta += le32_to_cpu(ckpt->rsvd_segment_count);
3369 fsmeta += le32_to_cpu(raw_super->segment_count_ssa);
3370
6bacf52f 3371 if (unlikely(fsmeta >= total))
aff063e2 3372 return 1;
577e3495 3373
2040fce8
JK		 3374 ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
3375 reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count);
3376
a7d9fe3c
JK		 3377 if (!f2fs_sb_has_readonly(sbi) &&
3378 unlikely(fsmeta < F2FS_MIN_META_SEGMENTS ||
2040fce8 3379 ovp_segments == 0 || reserved_segments == 0)) {
dcbb4c10 3380 f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
2040fce8
JK		 3381 return 1;
3382 }
9dc956b2 3383 user_block_count = le64_to_cpu(ckpt->user_block_count);
a7d9fe3c
JK		 3384 segment_count_main = le32_to_cpu(raw_super->segment_count_main) +
3385 (f2fs_sb_has_readonly(sbi) ? 1 : 0);
9dc956b2
CY		 3386 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3387 if (!user_block_count || user_block_count >=
3388 segment_count_main << log_blocks_per_seg) {
dcbb4c10
JP		 3389 f2fs_err(sbi, "Wrong user_block_count: %u",
3390 user_block_count);
9dc956b2
CY		 3391 return 1;
3392 }
3393
7b63f72f
CY		 3394 valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
3395 if (valid_user_blocks > user_block_count) {
dcbb4c10
JP		 3396 f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
3397 valid_user_blocks, user_block_count);
7b63f72f
CY		 3398 return 1;
3399 }
3400
3401 valid_node_count = le32_to_cpu(ckpt->valid_node_count);
27cae0bc 3402 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
7b63f72f 3403 if (valid_node_count > avail_node_count) {
dcbb4c10
JP		 3404 f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
3405 valid_node_count, avail_node_count);
7b63f72f
CY		 3406 return 1;
3407 }
3408
15d3042a
JQ		 3409 main_segs = le32_to_cpu(raw_super->segment_count_main);
3410 blocks_per_seg = sbi->blocks_per_seg;
3411
3412 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
3413 if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
3414 le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
3415 return 1;
a7d9fe3c
JK		 3416
3417 if (f2fs_sb_has_readonly(sbi))
3418 goto check_data;
3419
042be0f8
CY		 3420 for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
3421 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3422 le32_to_cpu(ckpt->cur_node_segno[j])) {
dcbb4c10
JP		 3423 f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
3424 i, j,
3425 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3426 return 1;
3427 }
3428 }
15d3042a 3429 }
a7d9fe3c 3430check_data:
15d3042a
JQ		 3431 for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
3432 if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
3433 le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
3434 return 1;
a7d9fe3c
JK		 3435
3436 if (f2fs_sb_has_readonly(sbi))
3437 goto skip_cross;
3438
042be0f8
CY		 3439 for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
3440 if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
3441 le32_to_cpu(ckpt->cur_data_segno[j])) {
dcbb4c10
JP		 3442 f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
3443 i, j,
3444 le32_to_cpu(ckpt->cur_data_segno[i]));
042be0f8
CY		 3445 return 1;
3446 }
3447 }
3448 }
3449 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
1166c1f2 3450 for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
042be0f8
CY		 3451 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3452 le32_to_cpu(ckpt->cur_data_segno[j])) {
1166c1f2 3453 f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
dcbb4c10
JP		 3454 i, j,
3455 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3456 return 1;
3457 }
3458 }
15d3042a 3459 }
a7d9fe3c 3460skip_cross:
c77ec61c
CY		 3461 sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
3462 nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
c77ec61c
CY		 3463
3464 if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
3465 nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
dcbb4c10
JP		 3466 f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
3467 sit_bitmap_size, nat_bitmap_size);
c77ec61c
CY		 3468 return 1;
3469 }
e494c2f9
CY		 3470
3471 cp_pack_start_sum = __start_sum_addr(sbi);
3472 cp_payload = __cp_payload(sbi);
3473 if (cp_pack_start_sum < cp_payload + 1 ||
3474 cp_pack_start_sum > blocks_per_seg - 1 -
d0b9e42a 3475 NR_CURSEG_PERSIST_TYPE) {
dcbb4c10
JP		 3476 f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
3477 cp_pack_start_sum);
e494c2f9
CY		 3478 return 1;
3479 }
c77ec61c 3480
5dae2d39
CY		 3481 if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
3482 le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
2d008835
CY		 3483 f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
3484 "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
3485 "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
dcbb4c10 3486 le32_to_cpu(ckpt->checksum_offset));
5dae2d39
CY		 3487 return 1;
3488 }
3489
65ddf656
CY		 3490 nat_blocks = nat_segs << log_blocks_per_seg;
3491 nat_bits_bytes = nat_blocks / BITS_PER_BYTE;
3492 nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
3493 if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) &&
3494 (cp_payload + F2FS_CP_PACKS +
3495 NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
3496 f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
3497 cp_payload, nat_bits_blocks);
ca98d721 3498 return 1;
65ddf656
CY		 3499 }
3500
1e968fdf 3501 if (unlikely(f2fs_cp_error(sbi))) {
dcbb4c10 3502 f2fs_err(sbi, "A bug case: need to run fsck");
577e3495
JK		 3503 return 1;
3504 }
aff063e2
JK		 3505 return 0;
3506}
3507
3508static void init_sb_info(struct f2fs_sb_info *sbi)
3509{
3510 struct f2fs_super_block *raw_super = sbi->raw_super;
089842de 3511 int i;
aff063e2
JK		 3512
3513 sbi->log_sectors_per_block =
3514 le32_to_cpu(raw_super->log_sectors_per_block);
3515 sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize);
3516 sbi->blocksize = 1 << sbi->log_blocksize;
3517 sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3518 sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg;
3519 sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3520 sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3521 sbi->total_sections = le32_to_cpu(raw_super->section_count);
3522 sbi->total_node_count =
3523 (le32_to_cpu(raw_super->segment_count_nat) / 2)
3524 * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK;
b9ec1094
YL		 3525 F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
3526 F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
3527 F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
5ec4e49f 3528 sbi->cur_victim_sec = NULL_SECNO;
e3080b01
CY		 3529 sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
3530 sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
b1c57c1c 3531 sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
e3080b01 3532 sbi->migration_granularity = sbi->segs_per_sec;
0f6b56ec 3533 sbi->seq_file_ra_mul = MIN_RA_MUL;
6691d940
DJ		 3534 sbi->max_fragment_chunk = DEF_FRAGMENT_SIZE;
3535 sbi->max_fragment_hole = DEF_FRAGMENT_SIZE;
aff063e2 3536
ab9fa662 3537 sbi->dir_level = DEF_DIR_LEVEL;
6beceb54 3538 sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
d0239e1b 3539 sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
a7d10cf3
ST		 3540 sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
3541 sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
4354994f 3542 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
03f2c02d
JK		 3543 sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
3544 DEF_UMOUNT_DISCARD_TIMEOUT;
caf0047e 3545 clear_sbi_flag(sbi, SBI_NEED_FSCK);
2658e50d 3546
35782b23
JK		 3547 for (i = 0; i < NR_COUNT_TYPE; i++)
3548 atomic_set(&sbi->nr_pages[i], 0);
3549
c29fd0c0
CY		 3550 for (i = 0; i < META; i++)
3551 atomic_set(&sbi->wb_sync_req[i], 0);
687de7f1 3552
2658e50d
JK		 3553 INIT_LIST_HEAD(&sbi->s_list);
3554 mutex_init(&sbi->umount_mutex);
107a805d 3555 init_rwsem(&sbi->io_order_lock);
aaec2b1d 3556 spin_lock_init(&sbi->cp_lock);
1228b482
CY		 3557
3558 sbi->dirty_device = 0;
3559 spin_lock_init(&sbi->dev_lock);
d0d3f1b3 3560
846ae671 3561 init_rwsem(&sbi->sb_lock);
f5a53edc 3562 init_rwsem(&sbi->pin_sem);
aff063e2
JK		 3563}
3564
523be8a6
JK		 3565static int init_percpu_info(struct f2fs_sb_info *sbi)
3566{
35782b23 3567 int err;
41382ec4 3568
513c5f37
JK		 3569 err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
3570 if (err)
3571 return err;
3572
4a70e255 3573 err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
41382ec4 3574 GFP_KERNEL);
4a70e255
CY		 3575 if (err)
3576 percpu_counter_destroy(&sbi->alloc_valid_block_count);
3577
3578 return err;
523be8a6
JK		 3579}
3580
178053e2 3581#ifdef CONFIG_BLK_DEV_ZONED
de881df9
AR		 3582
3583struct f2fs_report_zones_args {
3584 struct f2fs_dev_info *dev;
3585 bool zone_cap_mismatch;
3586};
3587
d4100351 3588static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx,
de881df9 3589 void *data)
d4100351 3590{
de881df9
AR		 3591 struct f2fs_report_zones_args *rz_args = data;
3592
3593 if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
3594 return 0;
3595
3596 set_bit(idx, rz_args->dev->blkz_seq);
3597 rz_args->dev->zone_capacity_blocks[idx] = zone->capacity >>
3598 F2FS_LOG_SECTORS_PER_BLOCK;
3599 if (zone->len != zone->capacity && !rz_args->zone_cap_mismatch)
3600 rz_args->zone_cap_mismatch = true;
d4100351 3601
d4100351
CH		 3602 return 0;
3603}
3604
3c62be17 3605static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
178053e2 3606{
3c62be17 3607 struct block_device *bdev = FDEV(devi).bdev;
a782483c 3608 sector_t nr_sectors = bdev_nr_sectors(bdev);
de881df9 3609 struct f2fs_report_zones_args rep_zone_arg;
d4100351 3610 int ret;
178053e2 3611
7beb01f7 3612 if (!f2fs_sb_has_blkzoned(sbi))
178053e2
DLM		 3613 return 0;
3614
3c62be17 3615 if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
f99e8648 3616 SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)))
3c62be17 3617 return -EINVAL;
f99e8648 3618 sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev));
3c62be17
JK		 3619 if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz !=
3620 __ilog2_u32(sbi->blocks_per_blkz))
3621 return -EINVAL;
178053e2 3622 sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz);
3c62be17
JK		 3623 FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >>
3624 sbi->log_blocks_per_blkz;
f99e8648 3625 if (nr_sectors & (bdev_zone_sectors(bdev) - 1))
3c62be17 3626 FDEV(devi).nr_blkz++;
178053e2 3627
0b6d4ca0 3628 FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
95175daf
DLM		 3629 BITS_TO_LONGS(FDEV(devi).nr_blkz)
3630 * sizeof(unsigned long),
3631 GFP_KERNEL);
3632 if (!FDEV(devi).blkz_seq)
178053e2
DLM		 3633 return -ENOMEM;
3634
de881df9
AR		 3635 /* Get block zones type and zone-capacity */
3636 FDEV(devi).zone_capacity_blocks = f2fs_kzalloc(sbi,
3637 FDEV(devi).nr_blkz * sizeof(block_t),
3638 GFP_KERNEL);
3639 if (!FDEV(devi).zone_capacity_blocks)
3640 return -ENOMEM;
3641
3642 rep_zone_arg.dev = &FDEV(devi);
3643 rep_zone_arg.zone_cap_mismatch = false;
3644
d4100351 3645 ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb,
de881df9 3646 &rep_zone_arg);
d4100351
CH		 3647 if (ret < 0)
3648 return ret;
178053e2 3649
de881df9
AR		 3650 if (!rep_zone_arg.zone_cap_mismatch) {
3651 kfree(FDEV(devi).zone_capacity_blocks);
3652 FDEV(devi).zone_capacity_blocks = NULL;
3653 }
3654
d4100351 3655 return 0;
178053e2
DLM		 3656}
3657#endif
3658
9076a75f
GZ		 3659/*
3660 * Read f2fs raw super block.
2b39e907
SL		 3661 * Because we have two copies of super block, so read both of them
3662 * to get the first valid one. If any one of them is broken, we pass
3663 * them recovery flag back to the caller.
9076a75f 3664 */
df728b0f 3665static int read_raw_super_block(struct f2fs_sb_info *sbi,
9076a75f 3666 struct f2fs_super_block **raw_super,
e8240f65 3667 int *valid_super_block, int *recovery)
14d7e9de 3668{
df728b0f 3669 struct super_block *sb = sbi->sb;
2b39e907 3670 int block;
e8240f65 3671 struct buffer_head *bh;
fd694733 3672 struct f2fs_super_block *super;
da554e48 3673 int err = 0;
14d7e9de 3674
b39f0de2
YH		 3675 super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL);
3676 if (!super)
3677 return -ENOMEM;
2b39e907
SL		 3678
3679 for (block = 0; block < 2; block++) {
3680 bh = sb_bread(sb, block);
3681 if (!bh) {
dcbb4c10
JP		 3682 f2fs_err(sbi, "Unable to read %dth superblock",
3683 block + 1);
2b39e907 3684 err = -EIO;
ed352042 3685 *recovery = 1;
2b39e907
SL		 3686 continue;
3687 }
14d7e9de 3688
2b39e907 3689 /* sanity checking of raw super */
38fb6d0e
IZ		 3690 err = sanity_check_raw_super(sbi, bh);
3691 if (err) {
dcbb4c10
JP		 3692 f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
3693 block + 1);
2b39e907 3694 brelse(bh);
ed352042 3695 *recovery = 1;
2b39e907
SL		 3696 continue;
3697 }
14d7e9de 3698
2b39e907 3699 if (!*raw_super) {
fd694733
JK		 3700 memcpy(super, bh->b_data + F2FS_SUPER_OFFSET,
3701 sizeof(*super));
2b39e907
SL		 3702 *valid_super_block = block;
3703 *raw_super = super;
3704 }
3705 brelse(bh);
da554e48 3706 }
3707
da554e48 3708 /* No valid superblock */
2b39e907 3709 if (!*raw_super)
742532d1 3710 kfree(super);
2b39e907
SL		 3711 else
3712 err = 0;
da554e48 3713
2b39e907 3714 return err;
14d7e9de 3715}
3716
fd694733 3717int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
26d815ad 3718{
5d909cdb 3719 struct buffer_head *bh;
d440c52d 3720 __u32 crc = 0;
26d815ad
JK		 3721 int err;
3722
df728b0f
JK		 3723 if ((recover && f2fs_readonly(sbi->sb)) ||
3724 bdev_read_only(sbi->sb->s_bdev)) {
3725 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
f2353d7b 3726 return -EROFS;
df728b0f 3727 }
f2353d7b 3728
d440c52d 3729 /* we should update superblock crc here */
7beb01f7 3730 if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
d440c52d
JZ		 3731 crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
3732 offsetof(struct f2fs_super_block, crc));
3733 F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
3734 }
3735
fd694733 3736 /* write back-up superblock first */
0964fc1a 3737 bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
5d909cdb
JK		 3738 if (!bh)
3739 return -EIO;
fd694733 3740 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
5d909cdb 3741 brelse(bh);
c5bda1c8
CY		 3742
3743 /* if we are in recovery path, skip writing valid superblock */
3744 if (recover || err)
5d909cdb 3745 return err;
26d815ad
JK		 3746
3747 /* write current valid superblock */
0964fc1a 3748 bh = sb_bread(sbi->sb, sbi->valid_super_block);
fd694733
JK		 3749 if (!bh)
3750 return -EIO;
3751 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
3752 brelse(bh);
3753 return err;
26d815ad
JK		 3754}
3755
3c62be17
JK		 3756static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
3757{
3758 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
7bb3a371 3759 unsigned int max_devices = MAX_DEVICES;
71f2c820 3760 unsigned int logical_blksize;
3c62be17
JK		 3761 int i;
3762
7bb3a371
MS		 3763 /* Initialize single device information */
3764 if (!RDEV(0).path[0]) {
3765 if (!bdev_is_zoned(sbi->sb->s_bdev))
3c62be17 3766 return 0;
7bb3a371
MS		 3767 max_devices = 1;
3768 }
3c62be17 3769
7bb3a371
MS		 3770 /*
3771 * Initialize multiple devices information, or single
3772 * zoned block device information.
3773 */
026f0507
KC		 3774 sbi->devs = f2fs_kzalloc(sbi,
3775 array_size(max_devices,
3776 sizeof(struct f2fs_dev_info)),
3777 GFP_KERNEL);
7bb3a371
MS		 3778 if (!sbi->devs)
3779 return -ENOMEM;
3c62be17 3780
71f2c820
CY		 3781 logical_blksize = bdev_logical_block_size(sbi->sb->s_bdev);
3782 sbi->aligned_blksize = true;
3783
7bb3a371 3784 for (i = 0; i < max_devices; i++) {
3c62be17 3785
7bb3a371
MS		 3786 if (i > 0 && !RDEV(i).path[0])
3787 break;
3788
3789 if (max_devices == 1) {
3790 /* Single zoned block device mount */
3791 FDEV(0).bdev =
3792 blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev,
3c62be17 3793 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371
MS		 3794 } else {
3795 /* Multi-device mount */
3796 memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN);
3797 FDEV(i).total_segments =
3798 le32_to_cpu(RDEV(i).total_segments);
3799 if (i == 0) {
3800 FDEV(i).start_blk = 0;
3801 FDEV(i).end_blk = FDEV(i).start_blk +
3802 (FDEV(i).total_segments <<
3803 sbi->log_blocks_per_seg) - 1 +
3804 le32_to_cpu(raw_super->segment0_blkaddr);
3805 } else {
3806 FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
3807 FDEV(i).end_blk = FDEV(i).start_blk +
3808 (FDEV(i).total_segments <<
3809 sbi->log_blocks_per_seg) - 1;
3810 }
3811 FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path,
3c62be17 3812 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371 3813 }
3c62be17
JK		 3814 if (IS_ERR(FDEV(i).bdev))
3815 return PTR_ERR(FDEV(i).bdev);
3816
3817 /* to release errored devices */
3818 sbi->s_ndevs = i + 1;
3819
71f2c820
CY		 3820 if (logical_blksize != bdev_logical_block_size(FDEV(i).bdev))
3821 sbi->aligned_blksize = false;
3822
3c62be17
JK		 3823#ifdef CONFIG_BLK_DEV_ZONED
3824 if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM &&
7beb01f7 3825 !f2fs_sb_has_blkzoned(sbi)) {
833dcd35 3826 f2fs_err(sbi, "Zoned block device feature not enabled");
3c62be17
JK		 3827 return -EINVAL;
3828 }
3829 if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) {
3830 if (init_blkz_info(sbi, i)) {
dcbb4c10 3831 f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
3c62be17
JK		 3832 return -EINVAL;
3833 }
7bb3a371
MS		 3834 if (max_devices == 1)
3835 break;
dcbb4c10
JP		 3836 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)",
3837 i, FDEV(i).path,
3838 FDEV(i).total_segments,
3839 FDEV(i).start_blk, FDEV(i).end_blk,
3840 bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ?
3841 "Host-aware" : "Host-managed");
3c62be17
JK		 3842 continue;
3843 }
3844#endif
dcbb4c10
JP		 3845 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
3846 i, FDEV(i).path,
3847 FDEV(i).total_segments,
3848 FDEV(i).start_blk, FDEV(i).end_blk);
3849 }
3850 f2fs_info(sbi,
3851 "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi));
3c62be17
JK		 3852 return 0;
3853}
3854
5aba5430
DR		 3855static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
3856{
3857#ifdef CONFIG_UNICODE
eca4873e 3858 if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) {
5aba5430
DR		 3859 const struct f2fs_sb_encodings *encoding_info;
3860 struct unicode_map *encoding;
3861 __u16 encoding_flags;
3862
5aba5430
DR		 3863 if (f2fs_sb_read_encoding(sbi->raw_super, &encoding_info,
3864 &encoding_flags)) {
3865 f2fs_err(sbi,
3866 "Encoding requested by superblock is unknown");
3867 return -EINVAL;
3868 }
3869
3870 encoding = utf8_load(encoding_info->version);
3871 if (IS_ERR(encoding)) {
3872 f2fs_err(sbi,
3873 "can't mount with superblock charset: %s-%s "
3874 "not supported by the kernel. flags: 0x%x.",
3875 encoding_info->name, encoding_info->version,
3876 encoding_flags);
3877 return PTR_ERR(encoding);
3878 }
3879 f2fs_info(sbi, "Using encoding defined by superblock: "
3880 "%s-%s with flags 0x%hx", encoding_info->name,
3881 encoding_info->version?:"\b", encoding_flags);
3882
eca4873e
DR		 3883 sbi->sb->s_encoding = encoding;
3884 sbi->sb->s_encoding_flags = encoding_flags;
5aba5430
DR		 3885 }
3886#else
3887 if (f2fs_sb_has_casefold(sbi)) {
3888 f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
3889 return -EINVAL;
3890 }
3891#endif
3892 return 0;
3893}
3894
84b89e5d
JK		 3895static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
3896{
3897 struct f2fs_sm_info *sm_i = SM_I(sbi);
3898
3899 /* adjust parameters according to the volume size */
3900 if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) {
63189b78 3901 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
4f993264
CY		 3902 if (f2fs_block_unit_discard(sbi))
3903 sm_i->dcc_info->discard_granularity = 1;
84b89e5d
JK		 3904 sm_i->ipu_policy = 1 << F2FS_IPU_FORCE;
3905 }
4cac90d5
CY		 3906
3907 sbi->readdir_ra = 1;
84b89e5d
JK		 3908}
3909
aff063e2
JK		 3910static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
3911{
3912 struct f2fs_sb_info *sbi;
da554e48 3913 struct f2fs_super_block *raw_super;
aff063e2 3914 struct inode *root;
99e3e858 3915 int err;
aa2c8c43 3916 bool skip_recovery = false, need_fsck = false;
dabc4a5c 3917 char *options = NULL;
e8240f65 3918 int recovery, i, valid_super_block;
8f1dbbbb 3919 struct curseg_info *seg_i;
aa2c8c43 3920 int retry_cnt = 1;
aff063e2 3921
ed2e621a 3922try_onemore:
da554e48 3923 err = -EINVAL;
3924 raw_super = NULL;
e8240f65 3925 valid_super_block = -1;
da554e48 3926 recovery = 0;
3927
aff063e2
JK		 3928 /* allocate memory for f2fs-specific super block info */
3929 sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
3930 if (!sbi)
3931 return -ENOMEM;
3932
df728b0f
JK		 3933 sbi->sb = sb;
3934
43b6573b
KM		 3935 /* Load the checksum driver */
3936 sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
3937 if (IS_ERR(sbi->s_chksum_driver)) {
dcbb4c10 3938 f2fs_err(sbi, "Cannot load crc32 driver.");
43b6573b
KM		 3939 err = PTR_ERR(sbi->s_chksum_driver);
3940 sbi->s_chksum_driver = NULL;
3941 goto free_sbi;
3942 }
3943
ff9234ad 3944 /* set a block size */
6bacf52f 3945 if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
dcbb4c10 3946 f2fs_err(sbi, "unable to set blocksize");
aff063e2 3947 goto free_sbi;
a07ef784 3948 }
aff063e2 3949
df728b0f 3950 err = read_raw_super_block(sbi, &raw_super, &valid_super_block,
e8240f65 3951 &recovery);
9076a75f
GZ		 3952 if (err)
3953 goto free_sbi;
3954
5fb08372 3955 sb->s_fs_info = sbi;
52763a4b
JK		 3956 sbi->raw_super = raw_super;
3957
704956ec 3958 /* precompute checksum seed for metadata */
7beb01f7 3959 if (f2fs_sb_has_inode_chksum(sbi))
704956ec
CY		 3960 sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
3961 sizeof(raw_super->uuid));
3962
498c5e9f 3963 default_options(sbi);
aff063e2 3964 /* parse mount options */
dabc4a5c
JK		 3965 options = kstrdup((const char *)data, GFP_KERNEL);
3966 if (data && !options) {
3967 err = -ENOMEM;
aff063e2 3968 goto free_sb_buf;
dabc4a5c
JK		 3969 }
3970
ed318a6c 3971 err = parse_options(sb, options, false);
dabc4a5c
JK		 3972 if (err)
3973 goto free_options;
aff063e2 3974
6d1451bf 3975 sb->s_maxbytes = max_file_blocks(NULL) <<
e0afc4d6 3976 le32_to_cpu(raw_super->log_blocksize);
aff063e2 3977 sb->s_max_links = F2FS_LINK_MAX;
aff063e2 3978
5aba5430
DR		 3979 err = f2fs_setup_casefold(sbi);
3980 if (err)
3981 goto free_options;
3982
0abd675e
CY		 3983#ifdef CONFIG_QUOTA
3984 sb->dq_op = &f2fs_quota_operations;
bc88ac96 3985 sb->s_qcop = &f2fs_quotactl_ops;
5c57132e 3986 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
292c196a 3987
7beb01f7 3988 if (f2fs_sb_has_quota_ino(sbi)) {
292c196a
CY		 3989 for (i = 0; i < MAXQUOTAS; i++) {
3990 if (f2fs_qf_ino(sbi->sb, i))
3991 sbi->nquota_files++;
3992 }
3993 }
0abd675e
CY		 3994#endif
3995
aff063e2 3996 sb->s_op = &f2fs_sops;
643fa961 3997#ifdef CONFIG_FS_ENCRYPTION
0b81d077 3998 sb->s_cop = &f2fs_cryptops;
95ae251f
EB		 3999#endif
4000#ifdef CONFIG_FS_VERITY
4001 sb->s_vop = &f2fs_verityops;
ffcc4182 4002#endif
aff063e2
JK		 4003 sb->s_xattr = f2fs_xattr_handlers;
4004 sb->s_export_op = &f2fs_export_ops;
4005 sb->s_magic = F2FS_SUPER_MAGIC;
aff063e2 4006 sb->s_time_gran = 1;
1751e8a6
LT		 4007 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
4008 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
85787090 4009 memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid));
578c6478 4010 sb->s_iflags |= SB_I_CGROUPWB;
aff063e2
JK		 4011
4012 /* init f2fs-specific super block info */
e8240f65 4013 sbi->valid_super_block = valid_super_block;
fb24fea7 4014 init_rwsem(&sbi->gc_lock);
853137ce 4015 mutex_init(&sbi->writepages);
8769918b 4016 init_rwsem(&sbi->cp_global_sem);
b3582c68 4017 init_rwsem(&sbi->node_write);
59c9081b 4018 init_rwsem(&sbi->node_change);
315df839
JK		 4019
4020 /* disallow all the data/node/meta page writes */
4021 set_sbi_flag(sbi, SBI_POR_DOING);
aff063e2 4022 spin_lock_init(&sbi->stat_lock);
971767ca 4023
458e6197 4024 for (i = 0; i < NR_PAGE_TYPE; i++) {
5f029c04 4025 int n = (i == META) ? 1 : NR_TEMP_TYPE;
a912b54d
JK		 4026 int j;
4027
c8606593
KC		 4028 sbi->write_io[i] =
4029 f2fs_kmalloc(sbi,
4030 array_size(n,
4031 sizeof(struct f2fs_bio_info)),
4032 GFP_KERNEL);
b63def91
CJ		 4033 if (!sbi->write_io[i]) {
4034 err = -ENOMEM;
0b2103e8 4035 goto free_bio_info;
b63def91 4036 }
a912b54d
JK		 4037
4038 for (j = HOT; j < n; j++) {
4039 init_rwsem(&sbi->write_io[i][j].io_rwsem);
4040 sbi->write_io[i][j].sbi = sbi;
4041 sbi->write_io[i][j].bio = NULL;
fb830fc5
CY		 4042 spin_lock_init(&sbi->write_io[i][j].io_lock);
4043 INIT_LIST_HEAD(&sbi->write_io[i][j].io_list);
0b20fcec
CY		 4044 INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list);
4045 init_rwsem(&sbi->write_io[i][j].bio_list_lock);
a912b54d 4046 }
458e6197 4047 }
971767ca 4048
b873b798 4049 init_rwsem(&sbi->cp_rwsem);
db6ec53b 4050 init_rwsem(&sbi->quota_sem);
fb51b5ef 4051 init_waitqueue_head(&sbi->cp_wait);
aff063e2
JK		 4052 init_sb_info(sbi);
4053
52118743 4054 err = f2fs_init_iostat(sbi);
523be8a6 4055 if (err)
d7997e63 4056 goto free_bio_info;
523be8a6 4057
523be8a6
JK		 4058 err = init_percpu_info(sbi);
4059 if (err)
a4b68176 4060 goto free_iostat;
523be8a6 4061
c72db71e 4062 if (F2FS_IO_ALIGNED(sbi)) {
0a595eba 4063 sbi->write_io_dummy =
a3ebfe4f 4064 mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
1727f317
CY		 4065 if (!sbi->write_io_dummy) {
4066 err = -ENOMEM;
d7997e63 4067 goto free_percpu;
1727f317 4068 }
0a595eba
JK		 4069 }
4070
a999150f
CY		 4071 /* init per sbi slab cache */
4072 err = f2fs_init_xattr_caches(sbi);
4073 if (err)
4074 goto free_io_dummy;
31083031
CY		 4075 err = f2fs_init_page_array_cache(sbi);
4076 if (err)
4077 goto free_xattr_cache;
a999150f 4078
aff063e2
JK		 4079 /* get an inode for meta space */
4080 sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
4081 if (IS_ERR(sbi->meta_inode)) {
dcbb4c10 4082 f2fs_err(sbi, "Failed to read F2FS meta data inode");
aff063e2 4083 err = PTR_ERR(sbi->meta_inode);
31083031 4084 goto free_page_array_cache;
aff063e2
JK		 4085 }
4086
4d57b86d 4087 err = f2fs_get_valid_checkpoint(sbi);
a07ef784 4088 if (err) {
dcbb4c10 4089 f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
aff063e2 4090 goto free_meta_inode;
a07ef784 4091 }
aff063e2 4092
af033b2a
CY		 4093 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
4094 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
db610a64
JK		 4095 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
4096 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
4097 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
4098 }
af033b2a 4099
04f0b2ea
QS		 4100 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
4101 set_sbi_flag(sbi, SBI_NEED_FSCK);
4102
3c62be17
JK		 4103 /* Initialize device list */
4104 err = f2fs_scan_devices(sbi);
4105 if (err) {
dcbb4c10 4106 f2fs_err(sbi, "Failed to find devices");
3c62be17
JK		 4107 goto free_devices;
4108 }
4109
4c8ff709
CY		 4110 err = f2fs_init_post_read_wq(sbi);
4111 if (err) {
4112 f2fs_err(sbi, "Failed to initialize post read workqueue");
4113 goto free_devices;
4114 }
4115
aff063e2
JK		 4116 sbi->total_valid_node_count =
4117 le32_to_cpu(sbi->ckpt->valid_node_count);
513c5f37
JK		 4118 percpu_counter_set(&sbi->total_valid_inode_count,
4119 le32_to_cpu(sbi->ckpt->valid_inode_count));
aff063e2
JK		 4120 sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count);
4121 sbi->total_valid_block_count =
4122 le64_to_cpu(sbi->ckpt->valid_block_count);
4123 sbi->last_valid_block_count = sbi->total_valid_block_count;
daeb433e 4124 sbi->reserved_blocks = 0;
80d42145 4125 sbi->current_reserved_blocks = 0;
7e65be49 4126 limit_reserve_root(sbi);
1ae18f71 4127 adjust_unusable_cap_perc(sbi);
41382ec4 4128
c227f912
CY		 4129 for (i = 0; i < NR_INODE_TYPE; i++) {
4130 INIT_LIST_HEAD(&sbi->inode_list[i]);
4131 spin_lock_init(&sbi->inode_lock[i]);
4132 }
040d2bb3 4133 mutex_init(&sbi->flush_lock);
aff063e2 4134
4d57b86d 4135 f2fs_init_extent_cache_info(sbi);
1dcc336b 4136
4d57b86d 4137 f2fs_init_ino_entry_info(sbi);
aff063e2 4138
50fa53ec
CY		 4139 f2fs_init_fsync_node_info(sbi);
4140
261eeb9c
DJ		 4141 /* setup checkpoint request control and start checkpoint issue thread */
4142 f2fs_init_ckpt_req_control(sbi);
3f7070b0 4143 if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) &&
261eeb9c
DJ		 4144 test_opt(sbi, MERGE_CHECKPOINT)) {
4145 err = f2fs_start_ckpt_thread(sbi);
4146 if (err) {
4147 f2fs_err(sbi,
4148 "Failed to start F2FS issue_checkpoint_thread (%d)",
4149 err);
4150 goto stop_ckpt_thread;
4151 }
4152 }
4153
aff063e2 4154 /* setup f2fs internal modules */
4d57b86d 4155 err = f2fs_build_segment_manager(sbi);
a07ef784 4156 if (err) {
dcbb4c10
JP		 4157 f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
4158 err);
aff063e2 4159 goto free_sm;
a07ef784 4160 }
4d57b86d 4161 err = f2fs_build_node_manager(sbi);
a07ef784 4162 if (err) {
dcbb4c10
JP		 4163 f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
4164 err);
aff063e2 4165 goto free_nm;
a07ef784 4166 }
aff063e2 4167
8f1dbbbb 4168 /* For write statistics */
3a0a9cbc 4169 sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
8f1dbbbb
SL		 4170
4171 /* Read accumulated write IO statistics if exists */
4172 seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
4173 if (__exist_node_summaries(sbi))
4174 sbi->kbytes_written =
b2dde6fc 4175 le64_to_cpu(seg_i->journal->info.kbytes_written);
8f1dbbbb 4176
4d57b86d 4177 f2fs_build_gc_manager(sbi);
aff063e2 4178
60aa4d55
ST		 4179 err = f2fs_build_stats(sbi);
4180 if (err)
4181 goto free_nm;
4182
aff063e2
JK		 4183 /* get an inode for node space */
4184 sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
4185 if (IS_ERR(sbi->node_inode)) {
dcbb4c10 4186 f2fs_err(sbi, "Failed to read node inode");
aff063e2 4187 err = PTR_ERR(sbi->node_inode);
60aa4d55 4188 goto free_stats;
aff063e2
JK		 4189 }
4190
aff063e2
JK		 4191 /* read root inode and dentry */
4192 root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
4193 if (IS_ERR(root)) {
dcbb4c10 4194 f2fs_err(sbi, "Failed to read root inode");
aff063e2 4195 err = PTR_ERR(root);
60aa4d55 4196 goto free_node_inode;
aff063e2 4197 }
bcbfbd60
CY		 4198 if (!S_ISDIR(root->i_mode) || !root->i_blocks ||
4199 !root->i_size || !root->i_nlink) {
9d847950 4200 iput(root);
8f99a946 4201 err = -EINVAL;
60aa4d55 4202 goto free_node_inode;
8f99a946 4203 }
aff063e2
JK		 4204
4205 sb->s_root = d_make_root(root); /* allocate root dentry */
4206 if (!sb->s_root) {
4207 err = -ENOMEM;
025cdb16 4208 goto free_node_inode;
aff063e2
JK		 4209 }
4210
6ce19aff 4211 err = f2fs_init_compress_inode(sbi);
b59d0bae 4212 if (err)
a398101a 4213 goto free_root_inode;
b59d0bae 4214
6ce19aff
CY		 4215 err = f2fs_register_sysfs(sbi);
4216 if (err)
4217 goto free_compress_inode;
4218
ea676733 4219#ifdef CONFIG_QUOTA
76cf05d7 4220 /* Enable quota usage during mount */
7beb01f7 4221 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
ea676733 4222 err = f2fs_enable_quotas(sb);
730746ce 4223 if (err)
dcbb4c10 4224 f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
ea676733
JK		 4225 }
4226#endif
7a88ddb5 4227 /* if there are any orphan inodes, free them */
4d57b86d 4228 err = f2fs_recover_orphan_inodes(sbi);
4b2414d0 4229 if (err)
ea676733 4230 goto free_meta;
4b2414d0 4231
4354994f 4232 if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
aa2c8c43 4233 goto reset_checkpoint;
4354994f 4234
6437d1b0 4235 /* recover fsynced data */
a9117eca
CY		 4236 if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
4237 !test_opt(sbi, NORECOVERY)) {
081d78c2
JK		 4238 /*
4239 * mount should be failed, when device has readonly mode, and
4240 * previous checkpoint was not done by clean system shutdown.
4241 */
b61af314 4242 if (f2fs_hw_is_readonly(sbi)) {
23738e74
CY		 4243 if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4244 err = f2fs_recover_fsync_data(sbi, true);
4245 if (err > 0) {
4246 err = -EROFS;
4247 f2fs_err(sbi, "Need to recover fsync data, but "
4248 "write access unavailable, please try "
4249 "mount w/ disable_roll_forward or norecovery");
4250 }
4251 if (err < 0)
4252 goto free_meta;
4253 }
4254 f2fs_info(sbi, "write access unavailable, skipping recovery");
b61af314 4255 goto reset_checkpoint;
081d78c2 4256 }
2adc3505
CY		 4257
4258 if (need_fsck)
4259 set_sbi_flag(sbi, SBI_NEED_FSCK);
4260
aa2c8c43
CY		 4261 if (skip_recovery)
4262 goto reset_checkpoint;
a468f0ef 4263
4d57b86d 4264 err = f2fs_recover_fsync_data(sbi, false);
6781eabb 4265 if (err < 0) {
aa2c8c43
CY		 4266 if (err != -ENOMEM)
4267 skip_recovery = true;
2adc3505 4268 need_fsck = true;
dcbb4c10
JP		 4269 f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
4270 err);
4b2414d0 4271 goto free_meta;
ed2e621a 4272 }
6781eabb 4273 } else {
4d57b86d 4274 err = f2fs_recover_fsync_data(sbi, true);
6781eabb
JK		 4275
4276 if (!f2fs_readonly(sb) && err > 0) {
4277 err = -EINVAL;
dcbb4c10 4278 f2fs_err(sbi, "Need to recover fsync data");
ea676733 4279 goto free_meta;
6781eabb 4280 }
6437d1b0 4281 }
d508c94e
SK		 4282
4283 /*
4284 * If the f2fs is not readonly and fsync data recovery succeeds,
4285 * check zoned block devices' write pointer consistency.
4286 */
4287 if (!err && !f2fs_readonly(sb) && f2fs_sb_has_blkzoned(sbi)) {
4288 err = f2fs_check_write_pointer(sbi);
4289 if (err)
4290 goto free_meta;
4291 }
4292
aa2c8c43 4293reset_checkpoint:
093749e2
CY		 4294 f2fs_init_inmem_curseg(sbi);
4295
4d57b86d 4296 /* f2fs_recover_fsync_data() cleared this already */
315df839 4297 clear_sbi_flag(sbi, SBI_POR_DOING);
b59d0bae 4298
4354994f
DR		 4299 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
4300 err = f2fs_disable_checkpoint(sbi);
4301 if (err)
812a9597 4302 goto sync_free_meta;
4354994f
DR		 4303 } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
4304 f2fs_enable_checkpoint(sbi);
4305 }
4306
6437d1b0
JK		 4307 /*
4308 * If filesystem is not mounted as read-only then
4309 * do start the gc_thread.
4310 */
5911d2d1
CY		 4311 if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF ||
4312 test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) {
6437d1b0 4313 /* After POR, we can run background GC thread.*/
4d57b86d 4314 err = f2fs_start_gc_thread(sbi);
6437d1b0 4315 if (err)
812a9597 4316 goto sync_free_meta;
6437d1b0 4317 }
5222595d 4318 kvfree(options);
da554e48 4319
4320 /* recover broken superblock */
f2353d7b 4321 if (recovery) {
41214b3c 4322 err = f2fs_commit_super(sbi, true);
dcbb4c10
JP		 4323 f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
4324 sbi->valid_super_block ? 1 : 2, err);
da554e48 4325 }
4326
bae01eda
CY		 4327 f2fs_join_shrinker(sbi);
4328
84b89e5d
JK		 4329 f2fs_tuning_parameters(sbi);
4330
dcbb4c10
JP		 4331 f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
4332 cur_cp_version(F2FS_CKPT(sbi)));
6beceb54 4333 f2fs_update_time(sbi, CP_TIME);
d0239e1b 4334 f2fs_update_time(sbi, REQ_TIME);
db610a64 4335 clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
aff063e2 4336 return 0;
6437d1b0 4337
812a9597
JK		 4338sync_free_meta:
4339 /* safe to flush all the data */
4340 sync_filesystem(sbi->sb);
aa2c8c43 4341 retry_cnt = 0;
812a9597 4342
4b2414d0 4343free_meta:
ea676733 4344#ifdef CONFIG_QUOTA
26b5a079 4345 f2fs_truncate_quota_inode_pages(sb);
7beb01f7 4346 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
ea676733
JK		 4347 f2fs_quota_off_umount(sbi->sb);
4348#endif
4b2414d0 4349 /*
4d57b86d 4350 * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
4b2414d0 4351 * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
4d57b86d
CY		 4352 * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
4353 * falls into an infinite loop in f2fs_sync_meta_pages().
4b2414d0
CY		 4354 */
4355 truncate_inode_pages_final(META_MAPPING(sbi));
812a9597
JK		 4356 /* evict some inodes being cached by GC */
4357 evict_inodes(sb);
dc6b2055 4358 f2fs_unregister_sysfs(sbi);
6ce19aff
CY		 4359free_compress_inode:
4360 f2fs_destroy_compress_inode(sbi);
aff063e2
JK		 4361free_root_inode:
4362 dput(sb->s_root);
4363 sb->s_root = NULL;
4364free_node_inode:
4d57b86d 4365 f2fs_release_ino_entry(sbi, true);
bae01eda 4366 truncate_inode_pages_final(NODE_MAPPING(sbi));
aff063e2 4367 iput(sbi->node_inode);
7c77bf7d 4368 sbi->node_inode = NULL;
60aa4d55
ST		 4369free_stats:
4370 f2fs_destroy_stats(sbi);
aff063e2 4371free_nm:
4d57b86d 4372 f2fs_destroy_node_manager(sbi);
aff063e2 4373free_sm:
4d57b86d 4374 f2fs_destroy_segment_manager(sbi);
4c8ff709 4375 f2fs_destroy_post_read_wq(sbi);
261eeb9c
DJ		 4376stop_ckpt_thread:
4377 f2fs_stop_ckpt_thread(sbi);
3c62be17
JK		 4378free_devices:
4379 destroy_device_list(sbi);
5222595d 4380 kvfree(sbi->ckpt);
aff063e2
JK		 4381free_meta_inode:
4382 make_bad_inode(sbi->meta_inode);
4383 iput(sbi->meta_inode);
7c77bf7d 4384 sbi->meta_inode = NULL;
31083031
CY		 4385free_page_array_cache:
4386 f2fs_destroy_page_array_cache(sbi);
a999150f
CY		 4387free_xattr_cache:
4388 f2fs_destroy_xattr_caches(sbi);
0a595eba
JK		 4389free_io_dummy:
4390 mempool_destroy(sbi->write_io_dummy);
d7997e63
CY		 4391free_percpu:
4392 destroy_percpu_info(sbi);
a4b68176
DJ		 4393free_iostat:
4394 f2fs_destroy_iostat(sbi);
d7997e63 4395free_bio_info:
a912b54d 4396 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 4397 kvfree(sbi->write_io[i]);
5aba5430
DR		 4398
4399#ifdef CONFIG_UNICODE
eca4873e 4400 utf8_unload(sb->s_encoding);
89ff6005 4401 sb->s_encoding = NULL;
5aba5430 4402#endif
d7997e63 4403free_options:
4b2414d0
CY		 4404#ifdef CONFIG_QUOTA
4405 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 4406 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 4407#endif
ac4acb1f 4408 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
5222595d 4409 kvfree(options);
aff063e2 4410free_sb_buf:
742532d1 4411 kfree(raw_super);
aff063e2 4412free_sbi:
43b6573b
KM		 4413 if (sbi->s_chksum_driver)
4414 crypto_free_shash(sbi->s_chksum_driver);
742532d1 4415 kfree(sbi);
ed2e621a
JK		 4416
4417 /* give only one another chance */
aa2c8c43
CY		 4418 if (retry_cnt > 0 && skip_recovery) {
4419 retry_cnt--;
ed2e621a
JK		 4420 shrink_dcache_sb(sb);
4421 goto try_onemore;
4422 }
aff063e2
JK		 4423 return err;
4424}
4425
4426static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags,
4427 const char *dev_name, void *data)
4428{
4429 return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super);
4430}
4431
30a5537f
JK		 4432static void kill_f2fs_super(struct super_block *sb)
4433{
cce13252 4434 if (sb->s_root) {
1cb50f87
JK		 4435 struct f2fs_sb_info *sbi = F2FS_SB(sb);
4436
4437 set_sbi_flag(sbi, SBI_IS_CLOSE);
4438 f2fs_stop_gc_thread(sbi);
4439 f2fs_stop_discard_thread(sbi);
4440
6ce19aff
CY		 4441#ifdef CONFIG_F2FS_FS_COMPRESSION
4442 /*
4443 * latter evict_inode() can bypass checking and invalidating
4444 * compress inode cache.
4445 */
4446 if (test_opt(sbi, COMPRESS_CACHE))
4447 truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
4448#endif
4449
1cb50f87
JK		 4450 if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
4451 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4452 struct cp_control cpc = {
4453 .reason = CP_UMOUNT,
4454 };
4455 f2fs_write_checkpoint(sbi, &cpc);
4456 }
1378752b
CY		 4457
4458 if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb))
4459 sb->s_flags &= ~SB_RDONLY;
cce13252 4460 }
30a5537f
JK		 4461 kill_block_super(sb);
4462}
4463
aff063e2
JK		 4464static struct file_system_type f2fs_fs_type = {
4465 .owner = THIS_MODULE,
4466 .name = "f2fs",
4467 .mount = f2fs_mount,
30a5537f 4468 .kill_sb = kill_f2fs_super,
aff063e2
JK		 4469 .fs_flags = FS_REQUIRES_DEV,
4470};
7f78e035 4471MODULE_ALIAS_FS("f2fs");
aff063e2 4472
6e6093a8 4473static int __init init_inodecache(void)
aff063e2 4474{
5d097056
VD		 4475 f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache",
4476 sizeof(struct f2fs_inode_info), 0,
4477 SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL);
6bacf52f 4478 if (!f2fs_inode_cachep)
aff063e2
JK		 4479 return -ENOMEM;
4480 return 0;
4481}
4482
4483static void destroy_inodecache(void)
4484{
4485 /*
4486 * Make sure all delayed rcu free inodes are flushed before we
4487 * destroy cache.
4488 */
4489 rcu_barrier();
4490 kmem_cache_destroy(f2fs_inode_cachep);
4491}
4492
4493static int __init init_f2fs_fs(void)
4494{
4495 int err;
4496
4071e67c
AP		 4497 if (PAGE_SIZE != F2FS_BLKSIZE) {
4498 printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n",
4499 PAGE_SIZE, F2FS_BLKSIZE);
4500 return -EINVAL;
4501 }
4502
aff063e2
JK		 4503 err = init_inodecache();
4504 if (err)
4505 goto fail;
4d57b86d 4506 err = f2fs_create_node_manager_caches();
aff063e2 4507 if (err)
9890ff3f 4508 goto free_inodecache;
4d57b86d 4509 err = f2fs_create_segment_manager_caches();
aff063e2 4510 if (err)
9890ff3f 4511 goto free_node_manager_caches;
4d57b86d 4512 err = f2fs_create_checkpoint_caches();
aff063e2 4513 if (err)
06292073 4514 goto free_segment_manager_caches;
cad83c96 4515 err = f2fs_create_recovery_cache();
1dcc336b
CY		 4516 if (err)
4517 goto free_checkpoint_caches;
cad83c96
CY		 4518 err = f2fs_create_extent_cache();
4519 if (err)
4520 goto free_recovery_cache;
093749e2 4521 err = f2fs_create_garbage_collection_cache();
a398101a 4522 if (err)
1dcc336b 4523 goto free_extent_cache;
093749e2
CY		 4524 err = f2fs_init_sysfs();
4525 if (err)
4526 goto free_garbage_collection_cache;
2658e50d 4527 err = register_shrinker(&f2fs_shrinker_info);
cfc4d971 4528 if (err)
a398101a 4529 goto free_sysfs;
2658e50d
JK		 4530 err = register_filesystem(&f2fs_fs_type);
4531 if (err)
4532 goto free_shrinker;
21acc07d 4533 f2fs_create_root_stats();
6dbb1796
EB		 4534 err = f2fs_init_post_read_processing();
4535 if (err)
4536 goto free_root_stats;
a4b68176 4537 err = f2fs_init_iostat_processing();
0b20fcec
CY		 4538 if (err)
4539 goto free_post_read;
a4b68176
DJ		 4540 err = f2fs_init_bio_entry_cache();
4541 if (err)
4542 goto free_iostat;
f543805f
CY		 4543 err = f2fs_init_bioset();
4544 if (err)
4545 goto free_bio_enrty_cache;
5e6bbde9
CY		 4546 err = f2fs_init_compress_mempool();
4547 if (err)
4548 goto free_bioset;
c68d6c88
CY		 4549 err = f2fs_init_compress_cache();
4550 if (err)
4551 goto free_compress_mempool;
4d9a2bb1
CY		 4552 err = f2fs_create_casefold_cache();
4553 if (err)
4554 goto free_compress_cache;
9890ff3f 4555 return 0;
4d9a2bb1
CY		 4556free_compress_cache:
4557 f2fs_destroy_compress_cache();
c68d6c88
CY		 4558free_compress_mempool:
4559 f2fs_destroy_compress_mempool();
5e6bbde9
CY		 4560free_bioset:
4561 f2fs_destroy_bioset();
f543805f
CY		 4562free_bio_enrty_cache:
4563 f2fs_destroy_bio_entry_cache();
a4b68176
DJ		 4564free_iostat:
4565 f2fs_destroy_iostat_processing();
0b20fcec
CY		 4566free_post_read:
4567 f2fs_destroy_post_read_processing();
6dbb1796
EB		 4568free_root_stats:
4569 f2fs_destroy_root_stats();
787c7b8c 4570 unregister_filesystem(&f2fs_fs_type);
2658e50d
JK		 4571free_shrinker:
4572 unregister_shrinker(&f2fs_shrinker_info);
a398101a 4573free_sysfs:
dc6b2055 4574 f2fs_exit_sysfs();
093749e2
CY		 4575free_garbage_collection_cache:
4576 f2fs_destroy_garbage_collection_cache();
1dcc336b 4577free_extent_cache:
4d57b86d 4578 f2fs_destroy_extent_cache();
cad83c96
CY		 4579free_recovery_cache:
4580 f2fs_destroy_recovery_cache();
9890ff3f 4581free_checkpoint_caches:
4d57b86d 4582 f2fs_destroy_checkpoint_caches();
7fd9e544 4583free_segment_manager_caches:
4d57b86d 4584 f2fs_destroy_segment_manager_caches();
9890ff3f 4585free_node_manager_caches:
4d57b86d 4586 f2fs_destroy_node_manager_caches();
9890ff3f
ZH		 4587free_inodecache:
4588 destroy_inodecache();
aff063e2
JK		 4589fail:
4590 return err;
4591}
4592
4593static void __exit exit_f2fs_fs(void)
4594{
4d9a2bb1 4595 f2fs_destroy_casefold_cache();
c68d6c88 4596 f2fs_destroy_compress_cache();
5e6bbde9 4597 f2fs_destroy_compress_mempool();
f543805f 4598 f2fs_destroy_bioset();
0b20fcec 4599 f2fs_destroy_bio_entry_cache();
a4b68176 4600 f2fs_destroy_iostat_processing();
6dbb1796 4601 f2fs_destroy_post_read_processing();
4589d25d 4602 f2fs_destroy_root_stats();
aff063e2 4603 unregister_filesystem(&f2fs_fs_type);
b8bef79d 4604 unregister_shrinker(&f2fs_shrinker_info);
dc6b2055 4605 f2fs_exit_sysfs();
093749e2 4606 f2fs_destroy_garbage_collection_cache();
4d57b86d 4607 f2fs_destroy_extent_cache();
cad83c96 4608 f2fs_destroy_recovery_cache();
4d57b86d
CY		 4609 f2fs_destroy_checkpoint_caches();
4610 f2fs_destroy_segment_manager_caches();
4611 f2fs_destroy_node_manager_caches();
aff063e2
JK		 4612 destroy_inodecache();
4613}
4614
4615module_init(init_f2fs_fs)
4616module_exit(exit_f2fs_fs)
4617
4618MODULE_AUTHOR("Samsung Electronics's Praesto Team");
4619MODULE_DESCRIPTION("Flash Friendly File System");
4620MODULE_LICENSE("GPL");
0dd57178 4621MODULE_SOFTDEP("pre: crc32");
b4b9d34c 4622
Linux 6.x block layer and io_uring tree(s)