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f2fs: fix to avoid potential panic during recovery
[linux-block.git] / fs / f2fs / super.c
CommitLineData
7c1a000d 1// SPDX-License-Identifier: GPL-2.0
0a8165d7 2/*
aff063e2
JK		 3 * fs/f2fs/super.c
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
aff063e2
JK		 7 */
8#include <linux/module.h>
9#include <linux/init.h>
10#include <linux/fs.h>
c5bca38d 11#include <linux/fs_context.h>
4034247a 12#include <linux/sched/mm.h>
aff063e2 13#include <linux/statfs.h>
aff063e2 14#include <linux/buffer_head.h>
aff063e2
JK		 15#include <linux/kthread.h>
16#include <linux/parser.h>
17#include <linux/mount.h>
18#include <linux/seq_file.h>
5e176d54 19#include <linux/proc_fs.h>
aff063e2
JK		 20#include <linux/random.h>
21#include <linux/exportfs.h>
d3ee456d 22#include <linux/blkdev.h>
0abd675e 23#include <linux/quotaops.h>
aff063e2 24#include <linux/f2fs_fs.h>
b59d0bae 25#include <linux/sysfs.h>
4b2414d0 26#include <linux/quota.h>
5aba5430 27#include <linux/unicode.h>
c6a564ff 28#include <linux/part_stat.h>
3fde13f8
CY		 29#include <linux/zstd.h>
30#include <linux/lz4.h>
aff063e2
JK		 31
32#include "f2fs.h"
33#include "node.h"
5ec4e49f 34#include "segment.h"
aff063e2 35#include "xattr.h"
b59d0bae 36#include "gc.h"
52118743 37#include "iostat.h"
aff063e2 38
a2a4a7e4
NJ		 39#define CREATE_TRACE_POINTS
40#include <trace/events/f2fs.h>
41
aff063e2
JK		 42static struct kmem_cache *f2fs_inode_cachep;
43
73faec4d 44#ifdef CONFIG_F2FS_FAULT_INJECTION
2c63fead 45
19880e6e 46const char *f2fs_fault_name[FAULT_MAX] = {
c7115e09
CY		 47 [FAULT_KMALLOC] = "kmalloc",
48 [FAULT_KVMALLOC] = "kvmalloc",
49 [FAULT_PAGE_ALLOC] = "page alloc",
50 [FAULT_PAGE_GET] = "page get",
51 [FAULT_ALLOC_NID] = "alloc nid",
52 [FAULT_ORPHAN] = "orphan",
53 [FAULT_BLOCK] = "no more block",
54 [FAULT_DIR_DEPTH] = "too big dir depth",
55 [FAULT_EVICT_INODE] = "evict_inode fail",
56 [FAULT_TRUNCATE] = "truncate fail",
57 [FAULT_READ_IO] = "read IO error",
58 [FAULT_CHECKPOINT] = "checkpoint error",
59 [FAULT_DISCARD] = "discard error",
60 [FAULT_WRITE_IO] = "write IO error",
61 [FAULT_SLAB_ALLOC] = "slab alloc",
62 [FAULT_DQUOT_INIT] = "dquot initialize",
63 [FAULT_LOCK_OP] = "lock_op",
64 [FAULT_BLKADDR_VALIDITY] = "invalid blkaddr",
65 [FAULT_BLKADDR_CONSISTENCE] = "inconsistent blkaddr",
2c63fead 66};
08796897 67
d494500a
CY		 68void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
69 unsigned int type)
08796897 70{
63189b78 71 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1ecc0c5c 72
08796897 73 if (rate) {
1ecc0c5c
CY		 74 atomic_set(&ffi->inject_ops, 0);
75 ffi->inject_rate = rate;
08796897 76 }
d494500a
CY		 77
78 if (type)
79 ffi->inject_type = type;
80
81 if (!rate && !type)
82 memset(ffi, 0, sizeof(struct f2fs_fault_info));
08796897 83}
73faec4d
JK		 84#endif
85
2658e50d 86/* f2fs-wide shrinker description */
bfcba5ba
QZ		 87static struct shrinker *f2fs_shrinker_info;
88
89static int __init f2fs_init_shrinker(void)
90{
91 f2fs_shrinker_info = shrinker_alloc(0, "f2fs-shrinker");
92 if (!f2fs_shrinker_info)
93 return -ENOMEM;
94
95 f2fs_shrinker_info->count_objects = f2fs_shrink_count;
96 f2fs_shrinker_info->scan_objects = f2fs_shrink_scan;
97
98 shrinker_register(f2fs_shrinker_info);
99
100 return 0;
101}
102
103static void f2fs_exit_shrinker(void)
104{
105 shrinker_free(f2fs_shrinker_info);
106}
2658e50d 107
aff063e2 108enum {
696c018c 109 Opt_gc_background,
aff063e2 110 Opt_disable_roll_forward,
2d834bf9 111 Opt_norecovery,
aff063e2 112 Opt_discard,
64058be9 113 Opt_nodiscard,
aff063e2 114 Opt_noheap,
7a20b8a6 115 Opt_heap,
4058c511 116 Opt_user_xattr,
aff063e2 117 Opt_nouser_xattr,
4058c511 118 Opt_acl,
aff063e2
JK		 119 Opt_noacl,
120 Opt_active_logs,
121 Opt_disable_ext_identify,
444c580f 122 Opt_inline_xattr,
23cf7212 123 Opt_noinline_xattr,
6afc662e 124 Opt_inline_xattr_size,
8274de77 125 Opt_inline_data,
5efd3c6f 126 Opt_inline_dentry,
97c1794a 127 Opt_noinline_dentry,
6b4afdd7 128 Opt_flush_merge,
69e9e427 129 Opt_noflush_merge,
6047de54 130 Opt_barrier,
0f7b2abd 131 Opt_nobarrier,
d5053a34 132 Opt_fastboot,
89672159 133 Opt_extent_cache,
7daaea25 134 Opt_noextent_cache,
75342797 135 Opt_noinline_data,
343f40f0 136 Opt_data_flush,
7e65be49 137 Opt_reserve_root,
7c2e5963
JK		 138 Opt_resgid,
139 Opt_resuid,
36abef4e 140 Opt_mode,
ec91538d 141 Opt_io_size_bits,
73faec4d 142 Opt_fault_injection,
d494500a 143 Opt_fault_type,
6d94c74a
JK		 144 Opt_lazytime,
145 Opt_nolazytime,
4b2414d0
CY		 146 Opt_quota,
147 Opt_noquota,
0abd675e
CY		 148 Opt_usrquota,
149 Opt_grpquota,
5c57132e 150 Opt_prjquota,
4b2414d0
CY		 151 Opt_usrjquota,
152 Opt_grpjquota,
153 Opt_prjjquota,
154 Opt_offusrjquota,
155 Opt_offgrpjquota,
156 Opt_offprjjquota,
157 Opt_jqfmt_vfsold,
158 Opt_jqfmt_vfsv0,
159 Opt_jqfmt_vfsv1,
07939627 160 Opt_alloc,
93cf93f1 161 Opt_fsync,
ff62af20 162 Opt_test_dummy_encryption,
27aacd28 163 Opt_inlinecrypt,
4d3aed70
DR		 164 Opt_checkpoint_disable,
165 Opt_checkpoint_disable_cap,
166 Opt_checkpoint_disable_cap_perc,
167 Opt_checkpoint_enable,
261eeb9c
DJ		 168 Opt_checkpoint_merge,
169 Opt_nocheckpoint_merge,
4c8ff709
CY		 170 Opt_compress_algorithm,
171 Opt_compress_log_size,
172 Opt_compress_extension,
151b1982 173 Opt_nocompress_extension,
b28f047b 174 Opt_compress_chksum,
602a16d5 175 Opt_compress_mode,
6ce19aff 176 Opt_compress_cache,
093749e2 177 Opt_atgc,
5911d2d1
CY		 178 Opt_gc_merge,
179 Opt_nogc_merge,
4f993264 180 Opt_discard_unit,
7a8fc586 181 Opt_memory_mode,
71644dff 182 Opt_age_extent_cache,
b62e71be 183 Opt_errors,
aff063e2
JK		 184 Opt_err,
185};
186
187static match_table_t f2fs_tokens = {
696c018c 188 {Opt_gc_background, "background_gc=%s"},
aff063e2 189 {Opt_disable_roll_forward, "disable_roll_forward"},
2d834bf9 190 {Opt_norecovery, "norecovery"},
aff063e2 191 {Opt_discard, "discard"},
64058be9 192 {Opt_nodiscard, "nodiscard"},
aff063e2 193 {Opt_noheap, "no_heap"},
7a20b8a6 194 {Opt_heap, "heap"},
4058c511 195 {Opt_user_xattr, "user_xattr"},
aff063e2 196 {Opt_nouser_xattr, "nouser_xattr"},
4058c511 197 {Opt_acl, "acl"},
aff063e2
JK		 198 {Opt_noacl, "noacl"},
199 {Opt_active_logs, "active_logs=%u"},
200 {Opt_disable_ext_identify, "disable_ext_identify"},
444c580f 201 {Opt_inline_xattr, "inline_xattr"},
23cf7212 202 {Opt_noinline_xattr, "noinline_xattr"},
6afc662e 203 {Opt_inline_xattr_size, "inline_xattr_size=%u"},
8274de77 204 {Opt_inline_data, "inline_data"},
5efd3c6f 205 {Opt_inline_dentry, "inline_dentry"},
97c1794a 206 {Opt_noinline_dentry, "noinline_dentry"},
6b4afdd7 207 {Opt_flush_merge, "flush_merge"},
69e9e427 208 {Opt_noflush_merge, "noflush_merge"},
6047de54 209 {Opt_barrier, "barrier"},
0f7b2abd 210 {Opt_nobarrier, "nobarrier"},
d5053a34 211 {Opt_fastboot, "fastboot"},
89672159 212 {Opt_extent_cache, "extent_cache"},
7daaea25 213 {Opt_noextent_cache, "noextent_cache"},
75342797 214 {Opt_noinline_data, "noinline_data"},
343f40f0 215 {Opt_data_flush, "data_flush"},
7e65be49 216 {Opt_reserve_root, "reserve_root=%u"},
7c2e5963
JK		 217 {Opt_resgid, "resgid=%u"},
218 {Opt_resuid, "resuid=%u"},
36abef4e 219 {Opt_mode, "mode=%s"},
ec91538d 220 {Opt_io_size_bits, "io_bits=%u"},
73faec4d 221 {Opt_fault_injection, "fault_injection=%u"},
d494500a 222 {Opt_fault_type, "fault_type=%u"},
6d94c74a
JK		 223 {Opt_lazytime, "lazytime"},
224 {Opt_nolazytime, "nolazytime"},
4b2414d0
CY		 225 {Opt_quota, "quota"},
226 {Opt_noquota, "noquota"},
0abd675e
CY		 227 {Opt_usrquota, "usrquota"},
228 {Opt_grpquota, "grpquota"},
5c57132e 229 {Opt_prjquota, "prjquota"},
4b2414d0
CY		 230 {Opt_usrjquota, "usrjquota=%s"},
231 {Opt_grpjquota, "grpjquota=%s"},
232 {Opt_prjjquota, "prjjquota=%s"},
233 {Opt_offusrjquota, "usrjquota="},
234 {Opt_offgrpjquota, "grpjquota="},
235 {Opt_offprjjquota, "prjjquota="},
236 {Opt_jqfmt_vfsold, "jqfmt=vfsold"},
237 {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
238 {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
07939627 239 {Opt_alloc, "alloc_mode=%s"},
93cf93f1 240 {Opt_fsync, "fsync_mode=%s"},
ed318a6c 241 {Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
ff62af20 242 {Opt_test_dummy_encryption, "test_dummy_encryption"},
27aacd28 243 {Opt_inlinecrypt, "inlinecrypt"},
4d3aed70
DR		 244 {Opt_checkpoint_disable, "checkpoint=disable"},
245 {Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
246 {Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
247 {Opt_checkpoint_enable, "checkpoint=enable"},
261eeb9c
DJ		 248 {Opt_checkpoint_merge, "checkpoint_merge"},
249 {Opt_nocheckpoint_merge, "nocheckpoint_merge"},
4c8ff709
CY		 250 {Opt_compress_algorithm, "compress_algorithm=%s"},
251 {Opt_compress_log_size, "compress_log_size=%u"},
252 {Opt_compress_extension, "compress_extension=%s"},
151b1982 253 {Opt_nocompress_extension, "nocompress_extension=%s"},
b28f047b 254 {Opt_compress_chksum, "compress_chksum"},
602a16d5 255 {Opt_compress_mode, "compress_mode=%s"},
6ce19aff 256 {Opt_compress_cache, "compress_cache"},
093749e2 257 {Opt_atgc, "atgc"},
5911d2d1
CY		 258 {Opt_gc_merge, "gc_merge"},
259 {Opt_nogc_merge, "nogc_merge"},
4f993264 260 {Opt_discard_unit, "discard_unit=%s"},
7a8fc586 261 {Opt_memory_mode, "memory=%s"},
71644dff 262 {Opt_age_extent_cache, "age_extent_cache"},
b62e71be 263 {Opt_errors, "errors=%s"},
aff063e2
JK		 264 {Opt_err, NULL},
265};
266
b1c9d3f8
CY		 267void f2fs_printk(struct f2fs_sb_info *sbi, bool limit_rate,
268 const char *fmt, ...)
a07ef784
NJ		 269{
270 struct va_format vaf;
271 va_list args;
dcbb4c10 272 int level;
a07ef784
NJ		 273
274 va_start(args, fmt);
dcbb4c10
JP		 275
276 level = printk_get_level(fmt);
277 vaf.fmt = printk_skip_level(fmt);
a07ef784 278 vaf.va = &args;
b1c9d3f8
CY		 279 if (limit_rate)
280 printk_ratelimited("%c%cF2FS-fs (%s): %pV\n",
281 KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
282 else
283 printk("%c%cF2FS-fs (%s): %pV\n",
284 KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
dcbb4c10 285
a07ef784
NJ		 286 va_end(args);
287}
288
5298d4bf 289#if IS_ENABLED(CONFIG_UNICODE)
5aba5430
DR		 290static const struct f2fs_sb_encodings {
291 __u16 magic;
292 char *name;
49bd03cc 293 unsigned int version;
5aba5430 294} f2fs_sb_encoding_map[] = {
49bd03cc 295 {F2FS_ENC_UTF8_12_1, "utf8", UNICODE_AGE(12, 1, 0)},
5aba5430
DR		 296};
297
86e80575
CH		 298static const struct f2fs_sb_encodings *
299f2fs_sb_read_encoding(const struct f2fs_super_block *sb)
5aba5430
DR		 300{
301 __u16 magic = le16_to_cpu(sb->s_encoding);
302 int i;
303
304 for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++)
305 if (magic == f2fs_sb_encoding_map[i].magic)
86e80575 306 return &f2fs_sb_encoding_map[i];
5aba5430 307
86e80575 308 return NULL;
5aba5430 309}
4d9a2bb1
CY		 310
311struct kmem_cache *f2fs_cf_name_slab;
312static int __init f2fs_create_casefold_cache(void)
313{
314 f2fs_cf_name_slab = f2fs_kmem_cache_create("f2fs_casefolded_name",
315 F2FS_NAME_LEN);
870af777 316 return f2fs_cf_name_slab ? 0 : -ENOMEM;
4d9a2bb1
CY		 317}
318
319static void f2fs_destroy_casefold_cache(void)
320{
321 kmem_cache_destroy(f2fs_cf_name_slab);
322}
323#else
324static int __init f2fs_create_casefold_cache(void) { return 0; }
325static void f2fs_destroy_casefold_cache(void) { }
5aba5430
DR		 326#endif
327
7e65be49
JK		 328static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
329{
da35fe96 330 block_t limit = min((sbi->user_block_count >> 3),
9a9aecaa 331 sbi->user_block_count - sbi->reserved_blocks);
7e65be49 332
da35fe96 333 /* limit is 12.5% */
63189b78
CY		 334 if (test_opt(sbi, RESERVE_ROOT) &&
335 F2FS_OPTION(sbi).root_reserved_blocks > limit) {
336 F2FS_OPTION(sbi).root_reserved_blocks = limit;
dcbb4c10
JP		 337 f2fs_info(sbi, "Reduce reserved blocks for root = %u",
338 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 339 }
7c2e5963 340 if (!test_opt(sbi, RESERVE_ROOT) &&
63189b78 341 (!uid_eq(F2FS_OPTION(sbi).s_resuid,
7c2e5963 342 make_kuid(&init_user_ns, F2FS_DEF_RESUID)) ||
63189b78 343 !gid_eq(F2FS_OPTION(sbi).s_resgid,
7c2e5963 344 make_kgid(&init_user_ns, F2FS_DEF_RESGID))))
dcbb4c10
JP		 345 f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
346 from_kuid_munged(&init_user_ns,
347 F2FS_OPTION(sbi).s_resuid),
348 from_kgid_munged(&init_user_ns,
349 F2FS_OPTION(sbi).s_resgid));
7e65be49
JK		 350}
351
300a8429
CY		 352static inline int adjust_reserved_segment(struct f2fs_sb_info *sbi)
353{
354 unsigned int sec_blks = sbi->blocks_per_seg * sbi->segs_per_sec;
355 unsigned int avg_vblocks;
356 unsigned int wanted_reserved_segments;
357 block_t avail_user_block_count;
358
359 if (!F2FS_IO_ALIGNED(sbi))
360 return 0;
361
362 /* average valid block count in section in worst case */
363 avg_vblocks = sec_blks / F2FS_IO_SIZE(sbi);
364
365 /*
366 * we need enough free space when migrating one section in worst case
367 */
368 wanted_reserved_segments = (F2FS_IO_SIZE(sbi) / avg_vblocks) *
369 reserved_segments(sbi);
370 wanted_reserved_segments -= reserved_segments(sbi);
371
372 avail_user_block_count = sbi->user_block_count -
373 sbi->current_reserved_blocks -
374 F2FS_OPTION(sbi).root_reserved_blocks;
375
376 if (wanted_reserved_segments * sbi->blocks_per_seg >
377 avail_user_block_count) {
378 f2fs_err(sbi, "IO align feature can't grab additional reserved segment: %u, available segments: %u",
379 wanted_reserved_segments,
380 avail_user_block_count >> sbi->log_blocks_per_seg);
381 return -ENOSPC;
382 }
383
384 SM_I(sbi)->additional_reserved_segments = wanted_reserved_segments;
385
386 f2fs_info(sbi, "IO align feature needs additional reserved segment: %u",
387 wanted_reserved_segments);
388
389 return 0;
390}
391
1ae18f71
JK		 392static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi)
393{
394 if (!F2FS_OPTION(sbi).unusable_cap_perc)
395 return;
396
397 if (F2FS_OPTION(sbi).unusable_cap_perc == 100)
398 F2FS_OPTION(sbi).unusable_cap = sbi->user_block_count;
399 else
400 F2FS_OPTION(sbi).unusable_cap = (sbi->user_block_count / 100) *
401 F2FS_OPTION(sbi).unusable_cap_perc;
402
403 f2fs_info(sbi, "Adjust unusable cap for checkpoint=disable = %u / %u%%",
404 F2FS_OPTION(sbi).unusable_cap,
405 F2FS_OPTION(sbi).unusable_cap_perc);
406}
407
aff063e2
JK		 408static void init_once(void *foo)
409{
410 struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
411
aff063e2
JK		 412 inode_init_once(&fi->vfs_inode);
413}
414
4b2414d0
CY		 415#ifdef CONFIG_QUOTA
416static const char * const quotatypes[] = INITQFNAMES;
417#define QTYPE2NAME(t) (quotatypes[t])
418static int f2fs_set_qf_name(struct super_block *sb, int qtype,
419 substring_t *args)
420{
421 struct f2fs_sb_info *sbi = F2FS_SB(sb);
422 char *qname;
423 int ret = -EINVAL;
424
63189b78 425 if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 426 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 427 return -EINVAL;
428 }
7beb01f7 429 if (f2fs_sb_has_quota_ino(sbi)) {
dcbb4c10 430 f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name");
ea676733
JK		 431 return 0;
432 }
433
4b2414d0
CY		 434 qname = match_strdup(args);
435 if (!qname) {
dcbb4c10 436 f2fs_err(sbi, "Not enough memory for storing quotafile name");
f365c6cc 437 return -ENOMEM;
4b2414d0 438 }
63189b78
CY		 439 if (F2FS_OPTION(sbi).s_qf_names[qtype]) {
440 if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0)
4b2414d0
CY		 441 ret = 0;
442 else
dcbb4c10 443 f2fs_err(sbi, "%s quota file already specified",
4b2414d0
CY		 444 QTYPE2NAME(qtype));
445 goto errout;
446 }
447 if (strchr(qname, '/')) {
dcbb4c10 448 f2fs_err(sbi, "quotafile must be on filesystem root");
4b2414d0
CY		 449 goto errout;
450 }
63189b78 451 F2FS_OPTION(sbi).s_qf_names[qtype] = qname;
4b2414d0
CY		 452 set_opt(sbi, QUOTA);
453 return 0;
454errout:
ba87a45c 455 kfree(qname);
4b2414d0
CY		 456 return ret;
457}
458
459static int f2fs_clear_qf_name(struct super_block *sb, int qtype)
460{
461 struct f2fs_sb_info *sbi = F2FS_SB(sb);
462
63189b78 463 if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 464 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 465 return -EINVAL;
466 }
ba87a45c 467 kfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
63189b78 468 F2FS_OPTION(sbi).s_qf_names[qtype] = NULL;
4b2414d0
CY		 469 return 0;
470}
471
472static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
473{
474 /*
475 * We do the test below only for project quotas. 'usrquota' and
476 * 'grpquota' mount options are allowed even without quota feature
477 * to support legacy quotas in quota files.
478 */
7beb01f7 479 if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) {
dcbb4c10 480 f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement.");
4b2414d0
CY		 481 return -1;
482 }
63189b78
CY		 483 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
484 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
485 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) {
486 if (test_opt(sbi, USRQUOTA) &&
487 F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
4b2414d0
CY		 488 clear_opt(sbi, USRQUOTA);
489
63189b78
CY		 490 if (test_opt(sbi, GRPQUOTA) &&
491 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
4b2414d0
CY		 492 clear_opt(sbi, GRPQUOTA);
493
63189b78
CY		 494 if (test_opt(sbi, PRJQUOTA) &&
495 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4b2414d0
CY		 496 clear_opt(sbi, PRJQUOTA);
497
498 if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) ||
499 test_opt(sbi, PRJQUOTA)) {
dcbb4c10 500 f2fs_err(sbi, "old and new quota format mixing");
4b2414d0
CY		 501 return -1;
502 }
503
63189b78 504 if (!F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 505 f2fs_err(sbi, "journaled quota format not specified");
4b2414d0
CY		 506 return -1;
507 }
508 }
ea676733 509
7beb01f7 510 if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 511 f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt");
63189b78 512 F2FS_OPTION(sbi).s_jquota_fmt = 0;
ea676733 513 }
4b2414d0
CY		 514 return 0;
515}
516#endif
517
ed318a6c
EB		 518static int f2fs_set_test_dummy_encryption(struct super_block *sb,
519 const char *opt,
520 const substring_t *arg,
521 bool is_remount)
522{
523 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c5bca38d
EB		 524 struct fs_parameter param = {
525 .type = fs_value_is_string,
526 .string = arg->from ? arg->from : "",
527 };
528 struct fscrypt_dummy_policy *policy =
529 &F2FS_OPTION(sbi).dummy_enc_policy;
ed318a6c
EB		 530 int err;
531
c5bca38d
EB		 532 if (!IS_ENABLED(CONFIG_FS_ENCRYPTION)) {
533 f2fs_warn(sbi, "test_dummy_encryption option not supported");
534 return -EINVAL;
535 }
536
ed318a6c
EB		 537 if (!f2fs_sb_has_encrypt(sbi)) {
538 f2fs_err(sbi, "Encrypt feature is off");
539 return -EINVAL;
540 }
541
542 /*
543 * This mount option is just for testing, and it's not worthwhile to
544 * implement the extra complexity (e.g. RCU protection) that would be
545 * needed to allow it to be set or changed during remount. We do allow
546 * it to be specified during remount, but only if there is no change.
547 */
c5bca38d 548 if (is_remount && !fscrypt_is_dummy_policy_set(policy)) {
ed318a6c
EB		 549 f2fs_warn(sbi, "Can't set test_dummy_encryption on remount");
550 return -EINVAL;
551 }
c5bca38d
EB		 552
553 err = fscrypt_parse_test_dummy_encryption(&param, policy);
ed318a6c
EB		 554 if (err) {
555 if (err == -EEXIST)
556 f2fs_warn(sbi,
557 "Can't change test_dummy_encryption on remount");
558 else if (err == -EINVAL)
559 f2fs_warn(sbi, "Value of option \"%s\" is unrecognized",
560 opt);
561 else
562 f2fs_warn(sbi, "Error processing option \"%s\" [%d]",
563 opt, err);
564 return -EINVAL;
565 }
566 f2fs_warn(sbi, "Test dummy encryption mode enabled");
64e3ed0b 567 return 0;
ed318a6c
EB		 568}
569
3fde13f8 570#ifdef CONFIG_F2FS_FS_COMPRESSION
7e1b150f
CY		 571static bool is_compress_extension_exist(struct f2fs_sb_info *sbi,
572 const char *new_ext, bool is_ext)
573{
574 unsigned char (*ext)[F2FS_EXTENSION_LEN];
575 int ext_cnt;
576 int i;
577
578 if (is_ext) {
579 ext = F2FS_OPTION(sbi).extensions;
580 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
581 } else {
582 ext = F2FS_OPTION(sbi).noextensions;
583 ext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
584 }
585
586 for (i = 0; i < ext_cnt; i++) {
587 if (!strcasecmp(new_ext, ext[i]))
588 return true;
589 }
590
591 return false;
592}
593
151b1982
FC		 594/*
595 * 1. The same extension name cannot not appear in both compress and non-compress extension
596 * at the same time.
597 * 2. If the compress extension specifies all files, the types specified by the non-compress
598 * extension will be treated as special cases and will not be compressed.
599 * 3. Don't allow the non-compress extension specifies all files.
600 */
601static int f2fs_test_compress_extension(struct f2fs_sb_info *sbi)
602{
603 unsigned char (*ext)[F2FS_EXTENSION_LEN];
604 unsigned char (*noext)[F2FS_EXTENSION_LEN];
605 int ext_cnt, noext_cnt, index = 0, no_index = 0;
606
607 ext = F2FS_OPTION(sbi).extensions;
608 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
609 noext = F2FS_OPTION(sbi).noextensions;
610 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
611
612 if (!noext_cnt)
613 return 0;
614
615 for (no_index = 0; no_index < noext_cnt; no_index++) {
616 if (!strcasecmp("*", noext[no_index])) {
617 f2fs_info(sbi, "Don't allow the nocompress extension specifies all files");
618 return -EINVAL;
619 }
620 for (index = 0; index < ext_cnt; index++) {
621 if (!strcasecmp(ext[index], noext[no_index])) {
622 f2fs_info(sbi, "Don't allow the same extension %s appear in both compress and nocompress extension",
623 ext[index]);
624 return -EINVAL;
625 }
626 }
627 }
628 return 0;
629}
630
3fde13f8
CY		 631#ifdef CONFIG_F2FS_FS_LZ4
632static int f2fs_set_lz4hc_level(struct f2fs_sb_info *sbi, const char *str)
633{
634#ifdef CONFIG_F2FS_FS_LZ4HC
635 unsigned int level;
3fde13f8
CY		 636
637 if (strlen(str) == 3) {
091a4dfb 638 F2FS_OPTION(sbi).compress_level = 0;
3fde13f8
CY		 639 return 0;
640 }
641
3fde13f8
CY		 642 str += 3;
643
644 if (str[0] != ':') {
645 f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
646 return -EINVAL;
647 }
648 if (kstrtouint(str + 1, 10, &level))
649 return -EINVAL;
650
c571fbb5 651 if (!f2fs_is_compress_level_valid(COMPRESS_LZ4, level)) {
3fde13f8
CY		 652 f2fs_info(sbi, "invalid lz4hc compress level: %d", level);
653 return -EINVAL;
654 }
655
656 F2FS_OPTION(sbi).compress_level = level;
657 return 0;
658#else
00e120b5
JK		 659 if (strlen(str) == 3) {
660 F2FS_OPTION(sbi).compress_level = 0;
661 return 0;
662 }
3fde13f8
CY		 663 f2fs_info(sbi, "kernel doesn't support lz4hc compression");
664 return -EINVAL;
665#endif
666}
667#endif
668
669#ifdef CONFIG_F2FS_FS_ZSTD
670static int f2fs_set_zstd_level(struct f2fs_sb_info *sbi, const char *str)
671{
672 unsigned int level;
673 int len = 4;
674
675 if (strlen(str) == len) {
00e120b5 676 F2FS_OPTION(sbi).compress_level = F2FS_ZSTD_DEFAULT_CLEVEL;
3fde13f8
CY		 677 return 0;
678 }
679
680 str += len;
681
682 if (str[0] != ':') {
683 f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
684 return -EINVAL;
685 }
686 if (kstrtouint(str + 1, 10, &level))
687 return -EINVAL;
688
c571fbb5 689 if (!f2fs_is_compress_level_valid(COMPRESS_ZSTD, level)) {
3fde13f8
CY		 690 f2fs_info(sbi, "invalid zstd compress level: %d", level);
691 return -EINVAL;
692 }
693
694 F2FS_OPTION(sbi).compress_level = level;
695 return 0;
696}
697#endif
698#endif
699
ed318a6c 700static int parse_options(struct super_block *sb, char *options, bool is_remount)
696c018c
NJ		 701{
702 struct f2fs_sb_info *sbi = F2FS_SB(sb);
703 substring_t args[MAX_OPT_ARGS];
1f0b067b 704#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 705 unsigned char (*ext)[F2FS_EXTENSION_LEN];
151b1982
FC		 706 unsigned char (*noext)[F2FS_EXTENSION_LEN];
707 int ext_cnt, noext_cnt;
1f0b067b 708#endif
696c018c 709 char *p, *name;
1f0b067b 710 int arg = 0;
7c2e5963
JK		 711 kuid_t uid;
712 kgid_t gid;
4b2414d0 713 int ret;
696c018c
NJ		 714
715 if (!options)
a7d9fe3c 716 goto default_check;
696c018c
NJ		 717
718 while ((p = strsep(&options, ",")) != NULL) {
719 int token;
5f029c04 720
696c018c
NJ		 721 if (!*p)
722 continue;
723 /*
724 * Initialize args struct so we know whether arg was
725 * found; some options take optional arguments.
726 */
727 args[0].to = args[0].from = NULL;
728 token = match_token(p, f2fs_tokens, args);
729
730 switch (token) {
731 case Opt_gc_background:
732 name = match_strdup(&args[0]);
733
734 if (!name)
735 return -ENOMEM;
3c57f751 736 if (!strcmp(name, "on")) {
bbbc34fd 737 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
3c57f751 738 } else if (!strcmp(name, "off")) {
bbbc34fd 739 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
3c57f751 740 } else if (!strcmp(name, "sync")) {
bbbc34fd 741 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
6aefd93b 742 } else {
ba87a45c 743 kfree(name);
696c018c
NJ		 744 return -EINVAL;
745 }
ba87a45c 746 kfree(name);
696c018c
NJ		 747 break;
748 case Opt_disable_roll_forward:
749 set_opt(sbi, DISABLE_ROLL_FORWARD);
750 break;
2d834bf9
JK		 751 case Opt_norecovery:
752 /* this option mounts f2fs with ro */
a9117eca 753 set_opt(sbi, NORECOVERY);
2d834bf9
JK		 754 if (!f2fs_readonly(sb))
755 return -EINVAL;
756 break;
696c018c 757 case Opt_discard:
f7db8dd6
CY		 758 if (!f2fs_hw_support_discard(sbi)) {
759 f2fs_warn(sbi, "device does not support discard");
760 break;
761 }
7d20c8ab 762 set_opt(sbi, DISCARD);
696c018c 763 break;
64058be9 764 case Opt_nodiscard:
f7db8dd6 765 if (f2fs_hw_should_discard(sbi)) {
dcbb4c10 766 f2fs_warn(sbi, "discard is required for zoned block devices");
96ba2dec
DLM		 767 return -EINVAL;
768 }
64058be9 769 clear_opt(sbi, DISCARD);
487df616 770 break;
696c018c
NJ		 771 case Opt_noheap:
772 set_opt(sbi, NOHEAP);
773 break;
7a20b8a6
JK		 774 case Opt_heap:
775 clear_opt(sbi, NOHEAP);
776 break;
696c018c 777#ifdef CONFIG_F2FS_FS_XATTR
4058c511
KA		 778 case Opt_user_xattr:
779 set_opt(sbi, XATTR_USER);
780 break;
696c018c
NJ		 781 case Opt_nouser_xattr:
782 clear_opt(sbi, XATTR_USER);
783 break;
444c580f
JK		 784 case Opt_inline_xattr:
785 set_opt(sbi, INLINE_XATTR);
786 break;
23cf7212
CY		 787 case Opt_noinline_xattr:
788 clear_opt(sbi, INLINE_XATTR);
789 break;
6afc662e
CY		 790 case Opt_inline_xattr_size:
791 if (args->from && match_int(args, &arg))
792 return -EINVAL;
793 set_opt(sbi, INLINE_XATTR_SIZE);
63189b78 794 F2FS_OPTION(sbi).inline_xattr_size = arg;
6afc662e 795 break;
696c018c 796#else
4058c511 797 case Opt_user_xattr:
dcbb4c10 798 f2fs_info(sbi, "user_xattr options not supported");
4058c511 799 break;
696c018c 800 case Opt_nouser_xattr:
dcbb4c10 801 f2fs_info(sbi, "nouser_xattr options not supported");
696c018c 802 break;
444c580f 803 case Opt_inline_xattr:
dcbb4c10 804 f2fs_info(sbi, "inline_xattr options not supported");
444c580f 805 break;
23cf7212 806 case Opt_noinline_xattr:
dcbb4c10 807 f2fs_info(sbi, "noinline_xattr options not supported");
23cf7212 808 break;
696c018c
NJ		 809#endif
810#ifdef CONFIG_F2FS_FS_POSIX_ACL
4058c511
KA		 811 case Opt_acl:
812 set_opt(sbi, POSIX_ACL);
813 break;
696c018c
NJ		 814 case Opt_noacl:
815 clear_opt(sbi, POSIX_ACL);
816 break;
817#else
4058c511 818 case Opt_acl:
dcbb4c10 819 f2fs_info(sbi, "acl options not supported");
4058c511 820 break;
696c018c 821 case Opt_noacl:
dcbb4c10 822 f2fs_info(sbi, "noacl options not supported");
696c018c
NJ		 823 break;
824#endif
825 case Opt_active_logs:
826 if (args->from && match_int(args, &arg))
827 return -EINVAL;
d0b9e42a
CY		 828 if (arg != 2 && arg != 4 &&
829 arg != NR_CURSEG_PERSIST_TYPE)
696c018c 830 return -EINVAL;
63189b78 831 F2FS_OPTION(sbi).active_logs = arg;
696c018c
NJ		 832 break;
833 case Opt_disable_ext_identify:
834 set_opt(sbi, DISABLE_EXT_IDENTIFY);
835 break;
8274de77
HL		 836 case Opt_inline_data:
837 set_opt(sbi, INLINE_DATA);
838 break;
5efd3c6f
CY		 839 case Opt_inline_dentry:
840 set_opt(sbi, INLINE_DENTRY);
841 break;
97c1794a
CY		 842 case Opt_noinline_dentry:
843 clear_opt(sbi, INLINE_DENTRY);
844 break;
6b4afdd7
JK		 845 case Opt_flush_merge:
846 set_opt(sbi, FLUSH_MERGE);
847 break;
69e9e427
JK		 848 case Opt_noflush_merge:
849 clear_opt(sbi, FLUSH_MERGE);
850 break;
0f7b2abd
JK		 851 case Opt_nobarrier:
852 set_opt(sbi, NOBARRIER);
853 break;
6047de54
YL		 854 case Opt_barrier:
855 clear_opt(sbi, NOBARRIER);
856 break;
d5053a34
JK		 857 case Opt_fastboot:
858 set_opt(sbi, FASTBOOT);
859 break;
89672159 860 case Opt_extent_cache:
12607c1b 861 set_opt(sbi, READ_EXTENT_CACHE);
89672159 862 break;
7daaea25 863 case Opt_noextent_cache:
12607c1b 864 clear_opt(sbi, READ_EXTENT_CACHE);
7daaea25 865 break;
75342797
WL		 866 case Opt_noinline_data:
867 clear_opt(sbi, INLINE_DATA);
868 break;
343f40f0
CY		 869 case Opt_data_flush:
870 set_opt(sbi, DATA_FLUSH);
871 break;
7e65be49
JK		 872 case Opt_reserve_root:
873 if (args->from && match_int(args, &arg))
874 return -EINVAL;
875 if (test_opt(sbi, RESERVE_ROOT)) {
dcbb4c10
JP		 876 f2fs_info(sbi, "Preserve previous reserve_root=%u",
877 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 878 } else {
63189b78 879 F2FS_OPTION(sbi).root_reserved_blocks = arg;
7e65be49
JK		 880 set_opt(sbi, RESERVE_ROOT);
881 }
882 break;
7c2e5963
JK		 883 case Opt_resuid:
884 if (args->from && match_int(args, &arg))
885 return -EINVAL;
886 uid = make_kuid(current_user_ns(), arg);
887 if (!uid_valid(uid)) {
dcbb4c10 888 f2fs_err(sbi, "Invalid uid value %d", arg);
7c2e5963
JK		 889 return -EINVAL;
890 }
63189b78 891 F2FS_OPTION(sbi).s_resuid = uid;
7c2e5963
JK		 892 break;
893 case Opt_resgid:
894 if (args->from && match_int(args, &arg))
895 return -EINVAL;
896 gid = make_kgid(current_user_ns(), arg);
897 if (!gid_valid(gid)) {
dcbb4c10 898 f2fs_err(sbi, "Invalid gid value %d", arg);
7c2e5963
JK		 899 return -EINVAL;
900 }
63189b78 901 F2FS_OPTION(sbi).s_resgid = gid;
7c2e5963 902 break;
36abef4e
JK		 903 case Opt_mode:
904 name = match_strdup(&args[0]);
905
906 if (!name)
907 return -ENOMEM;
3c57f751 908 if (!strcmp(name, "adaptive")) {
b0332a0f 909 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
3c57f751 910 } else if (!strcmp(name, "lfs")) {
b0332a0f 911 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
6691d940
DJ		 912 } else if (!strcmp(name, "fragment:segment")) {
913 F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_SEG;
914 } else if (!strcmp(name, "fragment:block")) {
915 F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_BLK;
36abef4e 916 } else {
ba87a45c 917 kfree(name);
36abef4e
JK		 918 return -EINVAL;
919 }
ba87a45c 920 kfree(name);
36abef4e 921 break;
ec91538d
JK		 922 case Opt_io_size_bits:
923 if (args->from && match_int(args, &arg))
924 return -EINVAL;
a8affc03 925 if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_VECS)) {
447286eb
YL		 926 f2fs_warn(sbi, "Not support %ld, larger than %d",
927 BIT(arg), BIO_MAX_VECS);
ec91538d
JK		 928 return -EINVAL;
929 }
63189b78 930 F2FS_OPTION(sbi).write_io_size_bits = arg;
ec91538d 931 break;
4cb037ec 932#ifdef CONFIG_F2FS_FAULT_INJECTION
73faec4d
JK		 933 case Opt_fault_injection:
934 if (args->from && match_int(args, &arg))
935 return -EINVAL;
d494500a
CY		 936 f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
937 set_opt(sbi, FAULT_INJECTION);
d494500a 938 break;
4cb037ec 939
d494500a
CY		 940 case Opt_fault_type:
941 if (args->from && match_int(args, &arg))
942 return -EINVAL;
d494500a 943 f2fs_build_fault_attr(sbi, 0, arg);
0cc0dec2 944 set_opt(sbi, FAULT_INJECTION);
4cb037ec 945 break;
73faec4d 946#else
4cb037ec 947 case Opt_fault_injection:
dcbb4c10 948 f2fs_info(sbi, "fault_injection options not supported");
73faec4d 949 break;
4cb037ec
CX		 950
951 case Opt_fault_type:
dcbb4c10 952 f2fs_info(sbi, "fault_type options not supported");
4cb037ec
CX		 953 break;
954#endif
6d94c74a 955 case Opt_lazytime:
1751e8a6 956 sb->s_flags |= SB_LAZYTIME;
6d94c74a
JK		 957 break;
958 case Opt_nolazytime:
1751e8a6 959 sb->s_flags &= ~SB_LAZYTIME;
6d94c74a 960 break;
0abd675e 961#ifdef CONFIG_QUOTA
4b2414d0 962 case Opt_quota:
0abd675e
CY		 963 case Opt_usrquota:
964 set_opt(sbi, USRQUOTA);
965 break;
966 case Opt_grpquota:
967 set_opt(sbi, GRPQUOTA);
968 break;
5c57132e
CY		 969 case Opt_prjquota:
970 set_opt(sbi, PRJQUOTA);
971 break;
4b2414d0
CY		 972 case Opt_usrjquota:
973 ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]);
974 if (ret)
975 return ret;
976 break;
977 case Opt_grpjquota:
978 ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]);
979 if (ret)
980 return ret;
981 break;
982 case Opt_prjjquota:
983 ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]);
984 if (ret)
985 return ret;
986 break;
987 case Opt_offusrjquota:
988 ret = f2fs_clear_qf_name(sb, USRQUOTA);
989 if (ret)
990 return ret;
991 break;
992 case Opt_offgrpjquota:
993 ret = f2fs_clear_qf_name(sb, GRPQUOTA);
994 if (ret)
995 return ret;
996 break;
997 case Opt_offprjjquota:
998 ret = f2fs_clear_qf_name(sb, PRJQUOTA);
999 if (ret)
1000 return ret;
1001 break;
1002 case Opt_jqfmt_vfsold:
63189b78 1003 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
4b2414d0
CY		 1004 break;
1005 case Opt_jqfmt_vfsv0:
63189b78 1006 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
4b2414d0
CY		 1007 break;
1008 case Opt_jqfmt_vfsv1:
63189b78 1009 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
4b2414d0
CY		 1010 break;
1011 case Opt_noquota:
1012 clear_opt(sbi, QUOTA);
1013 clear_opt(sbi, USRQUOTA);
1014 clear_opt(sbi, GRPQUOTA);
1015 clear_opt(sbi, PRJQUOTA);
1016 break;
0abd675e 1017#else
4b2414d0 1018 case Opt_quota:
0abd675e
CY		 1019 case Opt_usrquota:
1020 case Opt_grpquota:
5c57132e 1021 case Opt_prjquota:
4b2414d0
CY		 1022 case Opt_usrjquota:
1023 case Opt_grpjquota:
1024 case Opt_prjjquota:
1025 case Opt_offusrjquota:
1026 case Opt_offgrpjquota:
1027 case Opt_offprjjquota:
1028 case Opt_jqfmt_vfsold:
1029 case Opt_jqfmt_vfsv0:
1030 case Opt_jqfmt_vfsv1:
1031 case Opt_noquota:
dcbb4c10 1032 f2fs_info(sbi, "quota operations not supported");
0abd675e
CY		 1033 break;
1034#endif
07939627
JK		 1035 case Opt_alloc:
1036 name = match_strdup(&args[0]);
1037 if (!name)
1038 return -ENOMEM;
1039
3c57f751 1040 if (!strcmp(name, "default")) {
63189b78 1041 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
3c57f751 1042 } else if (!strcmp(name, "reuse")) {
63189b78 1043 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
07939627 1044 } else {
ba87a45c 1045 kfree(name);
07939627
JK		 1046 return -EINVAL;
1047 }
ba87a45c 1048 kfree(name);
07939627 1049 break;
93cf93f1
JZ		 1050 case Opt_fsync:
1051 name = match_strdup(&args[0]);
1052 if (!name)
1053 return -ENOMEM;
3c57f751 1054 if (!strcmp(name, "posix")) {
63189b78 1055 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
3c57f751 1056 } else if (!strcmp(name, "strict")) {
63189b78 1057 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
3c57f751 1058 } else if (!strcmp(name, "nobarrier")) {
d6290814
JK		 1059 F2FS_OPTION(sbi).fsync_mode =
1060 FSYNC_MODE_NOBARRIER;
93cf93f1 1061 } else {
ba87a45c 1062 kfree(name);
93cf93f1
JZ		 1063 return -EINVAL;
1064 }
ba87a45c 1065 kfree(name);
93cf93f1 1066 break;
ff62af20 1067 case Opt_test_dummy_encryption:
ed318a6c
EB		 1068 ret = f2fs_set_test_dummy_encryption(sb, p, &args[0],
1069 is_remount);
1070 if (ret)
1071 return ret;
ff62af20 1072 break;
27aacd28
ST		 1073 case Opt_inlinecrypt:
1074#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
1075 sb->s_flags |= SB_INLINECRYPT;
1076#else
1077 f2fs_info(sbi, "inline encryption not supported");
1078#endif
1079 break;
4d3aed70
DR		 1080 case Opt_checkpoint_disable_cap_perc:
1081 if (args->from && match_int(args, &arg))
4354994f 1082 return -EINVAL;
4d3aed70
DR		 1083 if (arg < 0 || arg > 100)
1084 return -EINVAL;
1ae18f71 1085 F2FS_OPTION(sbi).unusable_cap_perc = arg;
4d3aed70
DR		 1086 set_opt(sbi, DISABLE_CHECKPOINT);
1087 break;
1088 case Opt_checkpoint_disable_cap:
1089 if (args->from && match_int(args, &arg))
1090 return -EINVAL;
1091 F2FS_OPTION(sbi).unusable_cap = arg;
1092 set_opt(sbi, DISABLE_CHECKPOINT);
1093 break;
1094 case Opt_checkpoint_disable:
1095 set_opt(sbi, DISABLE_CHECKPOINT);
1096 break;
1097 case Opt_checkpoint_enable:
1098 clear_opt(sbi, DISABLE_CHECKPOINT);
4354994f 1099 break;
261eeb9c
DJ		 1100 case Opt_checkpoint_merge:
1101 set_opt(sbi, MERGE_CHECKPOINT);
1102 break;
1103 case Opt_nocheckpoint_merge:
1104 clear_opt(sbi, MERGE_CHECKPOINT);
1105 break;
1f0b067b 1106#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1107 case Opt_compress_algorithm:
1108 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1109 f2fs_info(sbi, "Image doesn't support compression");
1110 break;
4c8ff709
CY		 1111 }
1112 name = match_strdup(&args[0]);
1113 if (!name)
1114 return -ENOMEM;
3c57f751 1115 if (!strcmp(name, "lzo")) {
32be0e97 1116#ifdef CONFIG_F2FS_FS_LZO
3fde13f8 1117 F2FS_OPTION(sbi).compress_level = 0;
4c8ff709
CY		 1118 F2FS_OPTION(sbi).compress_algorithm =
1119 COMPRESS_LZO;
32be0e97
CY		 1120#else
1121 f2fs_info(sbi, "kernel doesn't support lzo compression");
1122#endif
3fde13f8 1123 } else if (!strncmp(name, "lz4", 3)) {
32be0e97 1124#ifdef CONFIG_F2FS_FS_LZ4
3fde13f8
CY		 1125 ret = f2fs_set_lz4hc_level(sbi, name);
1126 if (ret) {
1127 kfree(name);
1128 return -EINVAL;
1129 }
4c8ff709
CY		 1130 F2FS_OPTION(sbi).compress_algorithm =
1131 COMPRESS_LZ4;
32be0e97
CY		 1132#else
1133 f2fs_info(sbi, "kernel doesn't support lz4 compression");
1134#endif
3fde13f8 1135 } else if (!strncmp(name, "zstd", 4)) {
32be0e97 1136#ifdef CONFIG_F2FS_FS_ZSTD
3fde13f8
CY		 1137 ret = f2fs_set_zstd_level(sbi, name);
1138 if (ret) {
1139 kfree(name);
1140 return -EINVAL;
1141 }
50cfa66f
CY		 1142 F2FS_OPTION(sbi).compress_algorithm =
1143 COMPRESS_ZSTD;
32be0e97
CY		 1144#else
1145 f2fs_info(sbi, "kernel doesn't support zstd compression");
1146#endif
6d92b201 1147 } else if (!strcmp(name, "lzo-rle")) {
32be0e97 1148#ifdef CONFIG_F2FS_FS_LZORLE
3fde13f8 1149 F2FS_OPTION(sbi).compress_level = 0;
6d92b201
CY		 1150 F2FS_OPTION(sbi).compress_algorithm =
1151 COMPRESS_LZORLE;
32be0e97
CY		 1152#else
1153 f2fs_info(sbi, "kernel doesn't support lzorle compression");
1154#endif
4c8ff709
CY		 1155 } else {
1156 kfree(name);
1157 return -EINVAL;
1158 }
1159 kfree(name);
1160 break;
1161 case Opt_compress_log_size:
1162 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1163 f2fs_info(sbi, "Image doesn't support compression");
1164 break;
4c8ff709
CY		 1165 }
1166 if (args->from && match_int(args, &arg))
1167 return -EINVAL;
1168 if (arg < MIN_COMPRESS_LOG_SIZE ||
1169 arg > MAX_COMPRESS_LOG_SIZE) {
1170 f2fs_err(sbi,
1171 "Compress cluster log size is out of range");
1172 return -EINVAL;
1173 }
1174 F2FS_OPTION(sbi).compress_log_size = arg;
1175 break;
1176 case Opt_compress_extension:
1177 if (!f2fs_sb_has_compression(sbi)) {
69c0dd29
CY		 1178 f2fs_info(sbi, "Image doesn't support compression");
1179 break;
4c8ff709
CY		 1180 }
1181 name = match_strdup(&args[0]);
1182 if (!name)
1183 return -ENOMEM;
1184
1185 ext = F2FS_OPTION(sbi).extensions;
1186 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
1187
1188 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1189 ext_cnt >= COMPRESS_EXT_NUM) {
1190 f2fs_err(sbi,
1191 "invalid extension length/number");
1192 kfree(name);
1193 return -EINVAL;
1194 }
1195
7e1b150f
CY		 1196 if (is_compress_extension_exist(sbi, name, true)) {
1197 kfree(name);
1198 break;
1199 }
1200
4c8ff709
CY		 1201 strcpy(ext[ext_cnt], name);
1202 F2FS_OPTION(sbi).compress_ext_cnt++;
1203 kfree(name);
1204 break;
151b1982
FC		 1205 case Opt_nocompress_extension:
1206 if (!f2fs_sb_has_compression(sbi)) {
1207 f2fs_info(sbi, "Image doesn't support compression");
1208 break;
1209 }
1210 name = match_strdup(&args[0]);
1211 if (!name)
1212 return -ENOMEM;
1213
1214 noext = F2FS_OPTION(sbi).noextensions;
1215 noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
1216
1217 if (strlen(name) >= F2FS_EXTENSION_LEN ||
1218 noext_cnt >= COMPRESS_EXT_NUM) {
1219 f2fs_err(sbi,
1220 "invalid extension length/number");
1221 kfree(name);
1222 return -EINVAL;
1223 }
1224
7e1b150f
CY		 1225 if (is_compress_extension_exist(sbi, name, false)) {
1226 kfree(name);
1227 break;
1228 }
1229
151b1982
FC		 1230 strcpy(noext[noext_cnt], name);
1231 F2FS_OPTION(sbi).nocompress_ext_cnt++;
1232 kfree(name);
1233 break;
b28f047b 1234 case Opt_compress_chksum:
d4998b78
YL		 1235 if (!f2fs_sb_has_compression(sbi)) {
1236 f2fs_info(sbi, "Image doesn't support compression");
1237 break;
1238 }
b28f047b
CY		 1239 F2FS_OPTION(sbi).compress_chksum = true;
1240 break;
602a16d5 1241 case Opt_compress_mode:
d4998b78
YL		 1242 if (!f2fs_sb_has_compression(sbi)) {
1243 f2fs_info(sbi, "Image doesn't support compression");
1244 break;
1245 }
602a16d5
DJ		 1246 name = match_strdup(&args[0]);
1247 if (!name)
1248 return -ENOMEM;
1249 if (!strcmp(name, "fs")) {
1250 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
1251 } else if (!strcmp(name, "user")) {
1252 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
1253 } else {
1254 kfree(name);
1255 return -EINVAL;
1256 }
1257 kfree(name);
1258 break;
6ce19aff 1259 case Opt_compress_cache:
d4998b78
YL		 1260 if (!f2fs_sb_has_compression(sbi)) {
1261 f2fs_info(sbi, "Image doesn't support compression");
1262 break;
1263 }
6ce19aff
CY		 1264 set_opt(sbi, COMPRESS_CACHE);
1265 break;
1f0b067b
CY		 1266#else
1267 case Opt_compress_algorithm:
1268 case Opt_compress_log_size:
1269 case Opt_compress_extension:
151b1982 1270 case Opt_nocompress_extension:
b28f047b 1271 case Opt_compress_chksum:
602a16d5 1272 case Opt_compress_mode:
6ce19aff 1273 case Opt_compress_cache:
1f0b067b
CY		 1274 f2fs_info(sbi, "compression options not supported");
1275 break;
1276#endif
093749e2
CY		 1277 case Opt_atgc:
1278 set_opt(sbi, ATGC);
1279 break;
5911d2d1
CY		 1280 case Opt_gc_merge:
1281 set_opt(sbi, GC_MERGE);
1282 break;
1283 case Opt_nogc_merge:
1284 clear_opt(sbi, GC_MERGE);
1285 break;
4f993264
CY		 1286 case Opt_discard_unit:
1287 name = match_strdup(&args[0]);
1288 if (!name)
1289 return -ENOMEM;
1290 if (!strcmp(name, "block")) {
1291 F2FS_OPTION(sbi).discard_unit =
1292 DISCARD_UNIT_BLOCK;
1293 } else if (!strcmp(name, "segment")) {
1294 F2FS_OPTION(sbi).discard_unit =
1295 DISCARD_UNIT_SEGMENT;
1296 } else if (!strcmp(name, "section")) {
1297 F2FS_OPTION(sbi).discard_unit =
1298 DISCARD_UNIT_SECTION;
1299 } else {
1300 kfree(name);
1301 return -EINVAL;
1302 }
1303 kfree(name);
1304 break;
7a8fc586
DJ		 1305 case Opt_memory_mode:
1306 name = match_strdup(&args[0]);
1307 if (!name)
1308 return -ENOMEM;
1309 if (!strcmp(name, "normal")) {
1310 F2FS_OPTION(sbi).memory_mode =
1311 MEMORY_MODE_NORMAL;
1312 } else if (!strcmp(name, "low")) {
1313 F2FS_OPTION(sbi).memory_mode =
1314 MEMORY_MODE_LOW;
1315 } else {
1316 kfree(name);
1317 return -EINVAL;
1318 }
1319 kfree(name);
1320 break;
71644dff
JK		 1321 case Opt_age_extent_cache:
1322 set_opt(sbi, AGE_EXTENT_CACHE);
1323 break;
b62e71be
CY		 1324 case Opt_errors:
1325 name = match_strdup(&args[0]);
1326 if (!name)
1327 return -ENOMEM;
1328 if (!strcmp(name, "remount-ro")) {
1329 F2FS_OPTION(sbi).errors =
1330 MOUNT_ERRORS_READONLY;
1331 } else if (!strcmp(name, "continue")) {
1332 F2FS_OPTION(sbi).errors =
1333 MOUNT_ERRORS_CONTINUE;
1334 } else if (!strcmp(name, "panic")) {
1335 F2FS_OPTION(sbi).errors =
1336 MOUNT_ERRORS_PANIC;
1337 } else {
1338 kfree(name);
1339 return -EINVAL;
1340 }
1341 kfree(name);
1342 break;
696c018c 1343 default:
dcbb4c10
JP		 1344 f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
1345 p);
696c018c
NJ		 1346 return -EINVAL;
1347 }
1348 }
a7d9fe3c 1349default_check:
4b2414d0
CY		 1350#ifdef CONFIG_QUOTA
1351 if (f2fs_check_quota_options(sbi))
1352 return -EINVAL;
00960c2c 1353#else
7beb01f7 1354 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1355 f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
00960c2c
SY		 1356 return -EINVAL;
1357 }
7beb01f7 1358 if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 1359 f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
4ddc1b28
CY		 1360 return -EINVAL;
1361 }
4b2414d0 1362#endif
5298d4bf 1363#if !IS_ENABLED(CONFIG_UNICODE)
5aba5430
DR		 1364 if (f2fs_sb_has_casefold(sbi)) {
1365 f2fs_err(sbi,
1366 "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
1367 return -EINVAL;
1368 }
1369#endif
d0660122
CY		 1370 /*
1371 * The BLKZONED feature indicates that the drive was formatted with
1372 * zone alignment optimization. This is optional for host-aware
1373 * devices, but mandatory for host-managed zoned block devices.
1374 */
4f993264 1375 if (f2fs_sb_has_blkzoned(sbi)) {
b5a711ac 1376#ifdef CONFIG_BLK_DEV_ZONED
4f993264
CY		 1377 if (F2FS_OPTION(sbi).discard_unit !=
1378 DISCARD_UNIT_SECTION) {
1379 f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default");
1380 F2FS_OPTION(sbi).discard_unit =
1381 DISCARD_UNIT_SECTION;
1382 }
2bd4df8f
CG		 1383
1384 if (F2FS_OPTION(sbi).fs_mode != FS_MODE_LFS) {
1385 f2fs_info(sbi, "Only lfs mode is allowed with zoned block device feature");
1386 return -EINVAL;
1387 }
b5a711ac
YL		 1388#else
1389 f2fs_err(sbi, "Zoned block device support is not enabled");
1390 return -EINVAL;
1391#endif
4f993264 1392 }
ec91538d 1393
151b1982
FC		 1394#ifdef CONFIG_F2FS_FS_COMPRESSION
1395 if (f2fs_test_compress_extension(sbi)) {
1396 f2fs_err(sbi, "invalid compress or nocompress extension");
1397 return -EINVAL;
1398 }
1399#endif
1400
b0332a0f 1401 if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) {
447286eb 1402 f2fs_err(sbi, "Should set mode=lfs with %luKB-sized IO",
dcbb4c10 1403 F2FS_IO_SIZE_KB(sbi));
ec91538d
JK		 1404 return -EINVAL;
1405 }
6afc662e
CY		 1406
1407 if (test_opt(sbi, INLINE_XATTR_SIZE)) {
70db5b04
JK		 1408 int min_size, max_size;
1409
7beb01f7
CY		 1410 if (!f2fs_sb_has_extra_attr(sbi) ||
1411 !f2fs_sb_has_flexible_inline_xattr(sbi)) {
dcbb4c10 1412 f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
4d817ae0
CY		 1413 return -EINVAL;
1414 }
6afc662e 1415 if (!test_opt(sbi, INLINE_XATTR)) {
dcbb4c10 1416 f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
6afc662e
CY		 1417 return -EINVAL;
1418 }
70db5b04 1419
dde38c03 1420 min_size = MIN_INLINE_XATTR_SIZE;
dd6c89b5 1421 max_size = MAX_INLINE_XATTR_SIZE;
70db5b04
JK		 1422
1423 if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
1424 F2FS_OPTION(sbi).inline_xattr_size > max_size) {
dcbb4c10
JP		 1425 f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
1426 min_size, max_size);
6afc662e
CY		 1427 return -EINVAL;
1428 }
1429 }
0cdd3195 1430
80dc113a 1431 if (test_opt(sbi, ATGC) && f2fs_lfs_mode(sbi)) {
c5bf8348 1432 f2fs_err(sbi, "LFS is not compatible with ATGC");
80dc113a
JK		 1433 return -EINVAL;
1434 }
1435
ed8ac22b 1436 if (f2fs_is_readonly(sbi) && test_opt(sbi, FLUSH_MERGE)) {
967eaad1
YL		 1437 f2fs_err(sbi, "FLUSH_MERGE not compatible with readonly mode");
1438 return -EINVAL;
1439 }
1440
a7d9fe3c
JK		 1441 if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
1442 f2fs_err(sbi, "Allow to mount readonly mode only");
1443 return -EROFS;
1444 }
696c018c
NJ		 1445 return 0;
1446}
1447
aff063e2
JK		 1448static struct inode *f2fs_alloc_inode(struct super_block *sb)
1449{
1450 struct f2fs_inode_info *fi;
1451
c40e15a9 1452 if (time_to_inject(F2FS_SB(sb), FAULT_SLAB_ALLOC))
65d3af64 1453 return NULL;
65d3af64
MS		 1454
1455 fi = alloc_inode_sb(sb, f2fs_inode_cachep, GFP_F2FS_ZERO);
aff063e2
JK		 1456 if (!fi)
1457 return NULL;
1458
1459 init_once((void *) fi);
1460
434720fa 1461 /* Initialize f2fs-specific inode info */
204706c7 1462 atomic_set(&fi->dirty_pages, 0);
c2759eba 1463 atomic_set(&fi->i_compr_blocks, 0);
e4544b63 1464 init_f2fs_rwsem(&fi->i_sem);
c10c9820 1465 spin_lock_init(&fi->i_size_lock);
2710fd7e 1466 INIT_LIST_HEAD(&fi->dirty_list);
0f18b462 1467 INIT_LIST_HEAD(&fi->gdirty_list);
e4544b63
TM		 1468 init_f2fs_rwsem(&fi->i_gc_rwsem[READ]);
1469 init_f2fs_rwsem(&fi->i_gc_rwsem[WRITE]);
1470 init_f2fs_rwsem(&fi->i_xattr_sem);
aff063e2 1471
ab9fa662
JK		 1472 /* Will be used by directory only */
1473 fi->i_dir_level = F2FS_SB(sb)->dir_level;
f2470371 1474
aff063e2
JK		 1475 return &fi->vfs_inode;
1476}
1477
531ad7d5
JK		 1478static int f2fs_drop_inode(struct inode *inode)
1479{
a8933b6b 1480 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
b8d96a30 1481 int ret;
a8933b6b
CY		 1482
1483 /*
1484 * during filesystem shutdown, if checkpoint is disabled,
1485 * drop useless meta/node dirty pages.
1486 */
1487 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1488 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1489 inode->i_ino == F2FS_META_INO(sbi)) {
1490 trace_f2fs_drop_inode(inode, 1);
1491 return 1;
1492 }
1493 }
1494
531ad7d5
JK		 1495 /*
1496 * This is to avoid a deadlock condition like below.
1497 * writeback_single_inode(inode)
1498 * - f2fs_write_data_page
1499 * - f2fs_gc -> iput -> evict
1500 * - inode_wait_for_writeback(inode)
1501 */
0f18b462 1502 if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) {
06e1bc05 1503 if (!inode->i_nlink && !is_bad_inode(inode)) {
3e72f721
JK		 1504 /* to avoid evict_inode call simultaneously */
1505 atomic_inc(&inode->i_count);
06e1bc05
JK		 1506 spin_unlock(&inode->i_lock);
1507
3e72f721
JK		 1508 /* should remain fi->extent_tree for writepage */
1509 f2fs_destroy_extent_node(inode);
1510
06e1bc05 1511 sb_start_intwrite(inode->i_sb);
fc9581c8 1512 f2fs_i_size_write(inode, 0);
06e1bc05 1513
a0770e13 1514 f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
1515 inode, NULL, 0, DATA);
1516 truncate_inode_pages_final(inode->i_mapping);
1517
06e1bc05 1518 if (F2FS_HAS_BLOCKS(inode))
9a449e9c 1519 f2fs_truncate(inode);
06e1bc05
JK		 1520
1521 sb_end_intwrite(inode->i_sb);
1522
06e1bc05 1523 spin_lock(&inode->i_lock);
3e72f721 1524 atomic_dec(&inode->i_count);
06e1bc05 1525 }
b8d96a30 1526 trace_f2fs_drop_inode(inode, 0);
531ad7d5 1527 return 0;
06e1bc05 1528 }
b8d96a30 1529 ret = generic_drop_inode(inode);
8ce589c7
EB		 1530 if (!ret)
1531 ret = fscrypt_drop_inode(inode);
b8d96a30
HP		 1532 trace_f2fs_drop_inode(inode, ret);
1533 return ret;
531ad7d5
JK		 1534}
1535
7c45729a 1536int f2fs_inode_dirtied(struct inode *inode, bool sync)
b3783873 1537{
0f18b462 1538 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7c45729a 1539 int ret = 0;
0f18b462 1540
0f18b462
JK		 1541 spin_lock(&sbi->inode_lock[DIRTY_META]);
1542 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
7c45729a
JK		 1543 ret = 1;
1544 } else {
1545 set_inode_flag(inode, FI_DIRTY_INODE);
1546 stat_inc_dirty_inode(sbi, DIRTY_META);
0f18b462 1547 }
7c45729a
JK		 1548 if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) {
1549 list_add_tail(&F2FS_I(inode)->gdirty_list,
0f18b462 1550 &sbi->inode_list[DIRTY_META]);
7c45729a
JK		 1551 inc_page_count(sbi, F2FS_DIRTY_IMETA);
1552 }
338bbfa0 1553 spin_unlock(&sbi->inode_lock[DIRTY_META]);
7c45729a 1554 return ret;
0f18b462
JK		 1555}
1556
1557void f2fs_inode_synced(struct inode *inode)
1558{
1559 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1560
1561 spin_lock(&sbi->inode_lock[DIRTY_META]);
1562 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) {
1563 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1564 return;
1565 }
7c45729a
JK		 1566 if (!list_empty(&F2FS_I(inode)->gdirty_list)) {
1567 list_del_init(&F2FS_I(inode)->gdirty_list);
1568 dec_page_count(sbi, F2FS_DIRTY_IMETA);
1569 }
0f18b462 1570 clear_inode_flag(inode, FI_DIRTY_INODE);
26de9b11 1571 clear_inode_flag(inode, FI_AUTO_RECOVER);
0f18b462 1572 stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META);
338bbfa0 1573 spin_unlock(&sbi->inode_lock[DIRTY_META]);
b3783873
JK		 1574}
1575
b56ab837
JK		 1576/*
1577 * f2fs_dirty_inode() is called from __mark_inode_dirty()
1578 *
1579 * We should call set_dirty_inode to write the dirty inode through write_inode.
1580 */
1581static void f2fs_dirty_inode(struct inode *inode, int flags)
1582{
1583 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1584
1585 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1586 inode->i_ino == F2FS_META_INO(sbi))
1587 return;
1588
b56ab837
JK		 1589 if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
1590 clear_inode_flag(inode, FI_AUTO_RECOVER);
1591
7c45729a 1592 f2fs_inode_dirtied(inode, false);
b56ab837
JK		 1593}
1594
d01718a0 1595static void f2fs_free_inode(struct inode *inode)
aff063e2 1596{
2c58d548 1597 fscrypt_free_inode(inode);
aff063e2
JK		 1598 kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
1599}
1600
523be8a6
JK		 1601static void destroy_percpu_info(struct f2fs_sb_info *sbi)
1602{
513c5f37 1603 percpu_counter_destroy(&sbi->total_valid_inode_count);
47c8ebcc
JK		 1604 percpu_counter_destroy(&sbi->rf_node_block_count);
1605 percpu_counter_destroy(&sbi->alloc_valid_block_count);
523be8a6
JK		 1606}
1607
3c62be17
JK		 1608static void destroy_device_list(struct f2fs_sb_info *sbi)
1609{
1610 int i;
1611
1612 for (i = 0; i < sbi->s_ndevs; i++) {
51bf8d3c 1613 if (i > 0)
2b107946 1614 bdev_release(FDEV(i).bdev_handle);
3c62be17 1615#ifdef CONFIG_BLK_DEV_ZONED
95175daf 1616 kvfree(FDEV(i).blkz_seq);
3c62be17
JK		 1617#endif
1618 }
5222595d 1619 kvfree(sbi->devs);
3c62be17
JK		 1620}
1621
aff063e2
JK		 1622static void f2fs_put_super(struct super_block *sb)
1623{
1624 struct f2fs_sb_info *sbi = F2FS_SB(sb);
a398101a 1625 int i;
20872584 1626 int err = 0;
b1c5ef26 1627 bool done;
aff063e2 1628
99c787cf
LG		 1629 /* unregister procfs/sysfs entries in advance to avoid race case */
1630 f2fs_unregister_sysfs(sbi);
1631
0abd675e 1632 f2fs_quota_off_umount(sb);
aff063e2 1633
2658e50d
JK		 1634 /* prevent remaining shrinker jobs */
1635 mutex_lock(&sbi->umount_mutex);
1636
261eeb9c
DJ		 1637 /*
1638 * flush all issued checkpoints and stop checkpoint issue thread.
1639 * after then, all checkpoints should be done by each process context.
1640 */
1641 f2fs_stop_ckpt_thread(sbi);
1642
85dc2f2c
JK		 1643 /*
1644 * We don't need to do checkpoint when superblock is clean.
1645 * But, the previous checkpoint was not done by umount, it needs to do
1646 * clean checkpoint again.
1647 */
4354994f
DR		 1648 if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
1649 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
75ab4cb8
JK		 1650 struct cp_control cpc = {
1651 .reason = CP_UMOUNT,
1652 };
eb61c2cc 1653 stat_inc_cp_call_count(sbi, TOTAL_CALL);
20872584 1654 err = f2fs_write_checkpoint(sbi, &cpc);
75ab4cb8 1655 }
aff063e2 1656
4e6a8d9b 1657 /* be sure to wait for any on-going discard commands */
b1c5ef26
YL		 1658 done = f2fs_issue_discard_timeout(sbi);
1659 if (f2fs_realtime_discard_enable(sbi) && !sbi->discard_blks && done) {
1f43e2ad
CY		 1660 struct cp_control cpc = {
1661 .reason = CP_UMOUNT | CP_TRIMMED,
1662 };
eb61c2cc 1663 stat_inc_cp_call_count(sbi, TOTAL_CALL);
20872584 1664 err = f2fs_write_checkpoint(sbi, &cpc);
1f43e2ad
CY		 1665 }
1666
cf779cab
JK		 1667 /*
1668 * normally superblock is clean, so we need to release this.
1669 * In addition, EIO will skip do checkpoint, we need this as well.
1670 */
4d57b86d 1671 f2fs_release_ino_entry(sbi, true);
6f12ac25 1672
2658e50d
JK		 1673 f2fs_leave_shrinker(sbi);
1674 mutex_unlock(&sbi->umount_mutex);
1675
17c19120 1676 /* our cp_error case, we can wait for any writeback page */
b9109b0e 1677 f2fs_flush_merged_writes(sbi);
17c19120 1678
bf22c3cc 1679 f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
50fa53ec 1680
a4639380 1681 if (err || f2fs_cp_error(sbi)) {
20872584
CY		 1682 truncate_inode_pages_final(NODE_MAPPING(sbi));
1683 truncate_inode_pages_final(META_MAPPING(sbi));
1684 }
1685
1686 for (i = 0; i < NR_COUNT_TYPE; i++) {
1687 if (!get_pages(sbi, i))
1688 continue;
1689 f2fs_err(sbi, "detect filesystem reference count leak during "
1690 "umount, type: %d, count: %lld", i, get_pages(sbi, i));
1691 f2fs_bug_on(sbi, 1);
1692 }
1693
50fa53ec
CY		 1694 f2fs_bug_on(sbi, sbi->fsync_node_num);
1695
6ce19aff
CY		 1696 f2fs_destroy_compress_inode(sbi);
1697
aff063e2 1698 iput(sbi->node_inode);
7c77bf7d
JK		 1699 sbi->node_inode = NULL;
1700
aff063e2 1701 iput(sbi->meta_inode);
7c77bf7d 1702 sbi->meta_inode = NULL;
aff063e2 1703
60aa4d55
ST		 1704 /*
1705 * iput() can update stat information, if f2fs_write_checkpoint()
1706 * above failed with error.
1707 */
1708 f2fs_destroy_stats(sbi);
1709
aff063e2 1710 /* destroy f2fs internal modules */
4d57b86d
CY		 1711 f2fs_destroy_node_manager(sbi);
1712 f2fs_destroy_segment_manager(sbi);
aff063e2 1713
b62e71be
CY		 1714 /* flush s_error_work before sbi destroy */
1715 flush_work(&sbi->s_error_work);
1716
4c8ff709
CY		 1717 f2fs_destroy_post_read_wq(sbi);
1718
5222595d 1719 kvfree(sbi->ckpt);
a398101a 1720
43b6573b
KM		 1721 if (sbi->s_chksum_driver)
1722 crypto_free_shash(sbi->s_chksum_driver);
742532d1 1723 kfree(sbi->raw_super);
523be8a6 1724
31083031 1725 f2fs_destroy_page_array_cache(sbi);
a999150f 1726 f2fs_destroy_xattr_caches(sbi);
b6895e8f 1727 mempool_destroy(sbi->write_io_dummy);
4b2414d0
CY		 1728#ifdef CONFIG_QUOTA
1729 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 1730 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 1731#endif
ac4acb1f 1732 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
523be8a6 1733 destroy_percpu_info(sbi);
a4b68176 1734 f2fs_destroy_iostat(sbi);
a912b54d 1735 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 1736 kvfree(sbi->write_io[i]);
5298d4bf 1737#if IS_ENABLED(CONFIG_UNICODE)
eca4873e 1738 utf8_unload(sb->s_encoding);
5aba5430 1739#endif
aff063e2
JK		 1740}
1741
1742int f2fs_sync_fs(struct super_block *sb, int sync)
1743{
1744 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c34f42e2 1745 int err = 0;
aff063e2 1746
1f227a3e
JK		 1747 if (unlikely(f2fs_cp_error(sbi)))
1748 return 0;
4354994f
DR		 1749 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1750 return 0;
1f227a3e 1751
a2a4a7e4
NJ		 1752 trace_f2fs_sync_fs(sb, sync);
1753
4b2414d0
CY		 1754 if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
1755 return -EAGAIN;
1756
eb61c2cc
CY		 1757 if (sync) {
1758 stat_inc_cp_call_count(sbi, TOTAL_CALL);
261eeb9c 1759 err = f2fs_issue_checkpoint(sbi);
eb61c2cc 1760 }
119ee914 1761
c34f42e2 1762 return err;
aff063e2
JK		 1763}
1764
d6212a5f
CL		 1765static int f2fs_freeze(struct super_block *sb)
1766{
77888c1e 1767 if (f2fs_readonly(sb))
d6212a5f
CL		 1768 return 0;
1769
b4b9d34c
JK		 1770 /* IO error happened before */
1771 if (unlikely(f2fs_cp_error(F2FS_SB(sb))))
1772 return -EIO;
1773
1774 /* must be clean, since sync_filesystem() was already called */
1775 if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
1776 return -EINVAL;
d50dfc0c 1777
c7b58576
JK		 1778 /* Let's flush checkpoints and stop the thread. */
1779 f2fs_flush_ckpt_thread(F2FS_SB(sb));
ba900534
JK		 1780
1781 /* to avoid deadlock on f2fs_evict_inode->SB_FREEZE_FS */
1782 set_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
b4b9d34c 1783 return 0;
d6212a5f
CL		 1784}
1785
1786static int f2fs_unfreeze(struct super_block *sb)
1787{
ba900534 1788 clear_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
d6212a5f
CL		 1789 return 0;
1790}
1791
ddc34e32
CY		 1792#ifdef CONFIG_QUOTA
1793static int f2fs_statfs_project(struct super_block *sb,
1794 kprojid_t projid, struct kstatfs *buf)
1795{
1796 struct kqid qid;
1797 struct dquot *dquot;
1798 u64 limit;
1799 u64 curblock;
1800
1801 qid = make_kqid_projid(projid);
1802 dquot = dqget(sb, qid);
1803 if (IS_ERR(dquot))
1804 return PTR_ERR(dquot);
955ac6e5 1805 spin_lock(&dquot->dq_dqb_lock);
ddc34e32 1806
bf2cbd3c
CX		 1807 limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit,
1808 dquot->dq_dqb.dqb_bhardlimit);
acdf2172
CX		 1809 if (limit)
1810 limit >>= sb->s_blocksize_bits;
909110c0 1811
ddc34e32 1812 if (limit && buf->f_blocks > limit) {
baaa7ebf
KK		 1813 curblock = (dquot->dq_dqb.dqb_curspace +
1814 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
ddc34e32
CY		 1815 buf->f_blocks = limit;
1816 buf->f_bfree = buf->f_bavail =
1817 (buf->f_blocks > curblock) ?
1818 (buf->f_blocks - curblock) : 0;
1819 }
1820
bf2cbd3c
CX		 1821 limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit,
1822 dquot->dq_dqb.dqb_ihardlimit);
909110c0 1823
ddc34e32
CY		 1824 if (limit && buf->f_files > limit) {
1825 buf->f_files = limit;
1826 buf->f_ffree =
1827 (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
1828 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
1829 }
1830
955ac6e5 1831 spin_unlock(&dquot->dq_dqb_lock);
ddc34e32
CY		 1832 dqput(dquot);
1833 return 0;
1834}
1835#endif
1836
aff063e2
JK		 1837static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
1838{
1839 struct super_block *sb = dentry->d_sb;
1840 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1841 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
f66c027e 1842 block_t total_count, user_block_count, start_count;
0cc091d0 1843 u64 avail_node_count;
4de85145 1844 unsigned int total_valid_node_count;
aff063e2
JK		 1845
1846 total_count = le64_to_cpu(sbi->raw_super->block_count);
aff063e2 1847 start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
aff063e2
JK		 1848 buf->f_type = F2FS_SUPER_MAGIC;
1849 buf->f_bsize = sbi->blocksize;
1850
1851 buf->f_blocks = total_count - start_count;
4de85145
ND		 1852
1853 spin_lock(&sbi->stat_lock);
1854
1855 user_block_count = sbi->user_block_count;
1856 total_valid_node_count = valid_node_count(sbi);
1857 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
f66c027e 1858 buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
80d42145 1859 sbi->current_reserved_blocks;
c9c8ed50 1860
4354994f
DR		 1861 if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
1862 buf->f_bfree = 0;
1863 else
1864 buf->f_bfree -= sbi->unusable_block_count;
c9c8ed50 1865 spin_unlock(&sbi->stat_lock);
4354994f 1866
63189b78
CY		 1867 if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
1868 buf->f_bavail = buf->f_bfree -
1869 F2FS_OPTION(sbi).root_reserved_blocks;
7e65be49
JK		 1870 else
1871 buf->f_bavail = 0;
aff063e2 1872
0cc091d0
JK		 1873 if (avail_node_count > user_block_count) {
1874 buf->f_files = user_block_count;
1875 buf->f_ffree = buf->f_bavail;
1876 } else {
1877 buf->f_files = avail_node_count;
4de85145 1878 buf->f_ffree = min(avail_node_count - total_valid_node_count,
0cc091d0
JK		 1879 buf->f_bavail);
1880 }
aff063e2 1881
5a20d339 1882 buf->f_namelen = F2FS_NAME_LEN;
6d1349c7 1883 buf->f_fsid = u64_to_fsid(id);
aff063e2 1884
ddc34e32
CY		 1885#ifdef CONFIG_QUOTA
1886 if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) &&
1887 sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
1888 f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf);
1889 }
1890#endif
aff063e2
JK		 1891 return 0;
1892}
1893
4b2414d0
CY		 1894static inline void f2fs_show_quota_options(struct seq_file *seq,
1895 struct super_block *sb)
1896{
1897#ifdef CONFIG_QUOTA
1898 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1899
63189b78 1900 if (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1901 char *fmtname = "";
1902
63189b78 1903 switch (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1904 case QFMT_VFS_OLD:
1905 fmtname = "vfsold";
1906 break;
1907 case QFMT_VFS_V0:
1908 fmtname = "vfsv0";
1909 break;
1910 case QFMT_VFS_V1:
1911 fmtname = "vfsv1";
1912 break;
1913 }
1914 seq_printf(seq, ",jqfmt=%s", fmtname);
1915 }
1916
63189b78
CY		 1917 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
1918 seq_show_option(seq, "usrjquota",
1919 F2FS_OPTION(sbi).s_qf_names[USRQUOTA]);
4b2414d0 1920
63189b78
CY		 1921 if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
1922 seq_show_option(seq, "grpjquota",
1923 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]);
4b2414d0 1924
63189b78
CY		 1925 if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
1926 seq_show_option(seq, "prjjquota",
1927 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]);
4b2414d0
CY		 1928#endif
1929}
1930
cd6ee739 1931#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 1932static inline void f2fs_show_compress_options(struct seq_file *seq,
1933 struct super_block *sb)
1934{
1935 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1936 char *algtype = "";
1937 int i;
1938
1939 if (!f2fs_sb_has_compression(sbi))
1940 return;
1941
1942 switch (F2FS_OPTION(sbi).compress_algorithm) {
1943 case COMPRESS_LZO:
1944 algtype = "lzo";
1945 break;
1946 case COMPRESS_LZ4:
1947 algtype = "lz4";
1948 break;
50cfa66f
CY		 1949 case COMPRESS_ZSTD:
1950 algtype = "zstd";
1951 break;
6d92b201
CY		 1952 case COMPRESS_LZORLE:
1953 algtype = "lzo-rle";
1954 break;
4c8ff709
CY		 1955 }
1956 seq_printf(seq, ",compress_algorithm=%s", algtype);
1957
3fde13f8
CY		 1958 if (F2FS_OPTION(sbi).compress_level)
1959 seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level);
1960
4c8ff709
CY		 1961 seq_printf(seq, ",compress_log_size=%u",
1962 F2FS_OPTION(sbi).compress_log_size);
1963
1964 for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
1965 seq_printf(seq, ",compress_extension=%s",
1966 F2FS_OPTION(sbi).extensions[i]);
1967 }
b28f047b 1968
151b1982
FC		 1969 for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) {
1970 seq_printf(seq, ",nocompress_extension=%s",
1971 F2FS_OPTION(sbi).noextensions[i]);
1972 }
1973
b28f047b
CY		 1974 if (F2FS_OPTION(sbi).compress_chksum)
1975 seq_puts(seq, ",compress_chksum");
602a16d5
DJ		 1976
1977 if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS)
1978 seq_printf(seq, ",compress_mode=%s", "fs");
1979 else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
1980 seq_printf(seq, ",compress_mode=%s", "user");
6ce19aff
CY		 1981
1982 if (test_opt(sbi, COMPRESS_CACHE))
1983 seq_puts(seq, ",compress_cache");
4c8ff709 1984}
cd6ee739 1985#endif
4c8ff709 1986
aff063e2
JK		 1987static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
1988{
1989 struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
1990
bbbc34fd
CY		 1991 if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
1992 seq_printf(seq, ",background_gc=%s", "sync");
1993 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
1994 seq_printf(seq, ",background_gc=%s", "on");
1995 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
696c018c 1996 seq_printf(seq, ",background_gc=%s", "off");
bbbc34fd 1997
5911d2d1
CY		 1998 if (test_opt(sbi, GC_MERGE))
1999 seq_puts(seq, ",gc_merge");
04d7a7ae
YL		 2000 else
2001 seq_puts(seq, ",nogc_merge");
5911d2d1 2002
aff063e2
JK		 2003 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
2004 seq_puts(seq, ",disable_roll_forward");
a9117eca
CY		 2005 if (test_opt(sbi, NORECOVERY))
2006 seq_puts(seq, ",norecovery");
2381a685 2007 if (test_opt(sbi, DISCARD)) {
aff063e2 2008 seq_puts(seq, ",discard");
2381a685
YL		 2009 if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK)
2010 seq_printf(seq, ",discard_unit=%s", "block");
2011 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
2012 seq_printf(seq, ",discard_unit=%s", "segment");
2013 else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
2014 seq_printf(seq, ",discard_unit=%s", "section");
2015 } else {
81621f97 2016 seq_puts(seq, ",nodiscard");
2381a685 2017 }
aff063e2 2018 if (test_opt(sbi, NOHEAP))
7a20b8a6
JK		 2019 seq_puts(seq, ",no_heap");
2020 else
2021 seq_puts(seq, ",heap");
aff063e2
JK		 2022#ifdef CONFIG_F2FS_FS_XATTR
2023 if (test_opt(sbi, XATTR_USER))
2024 seq_puts(seq, ",user_xattr");
2025 else
2026 seq_puts(seq, ",nouser_xattr");
444c580f
JK		 2027 if (test_opt(sbi, INLINE_XATTR))
2028 seq_puts(seq, ",inline_xattr");
23cf7212
CY		 2029 else
2030 seq_puts(seq, ",noinline_xattr");
6afc662e
CY		 2031 if (test_opt(sbi, INLINE_XATTR_SIZE))
2032 seq_printf(seq, ",inline_xattr_size=%u",
63189b78 2033 F2FS_OPTION(sbi).inline_xattr_size);
aff063e2
JK		 2034#endif
2035#ifdef CONFIG_F2FS_FS_POSIX_ACL
2036 if (test_opt(sbi, POSIX_ACL))
2037 seq_puts(seq, ",acl");
2038 else
2039 seq_puts(seq, ",noacl");
2040#endif
2041 if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
aa43507f 2042 seq_puts(seq, ",disable_ext_identify");
8274de77
HL		 2043 if (test_opt(sbi, INLINE_DATA))
2044 seq_puts(seq, ",inline_data");
75342797
WL		 2045 else
2046 seq_puts(seq, ",noinline_data");
5efd3c6f
CY		 2047 if (test_opt(sbi, INLINE_DENTRY))
2048 seq_puts(seq, ",inline_dentry");
97c1794a
CY		 2049 else
2050 seq_puts(seq, ",noinline_dentry");
967eaad1 2051 if (test_opt(sbi, FLUSH_MERGE))
6b4afdd7 2052 seq_puts(seq, ",flush_merge");
967eaad1
YL		 2053 else
2054 seq_puts(seq, ",noflush_merge");
0f7b2abd
JK		 2055 if (test_opt(sbi, NOBARRIER))
2056 seq_puts(seq, ",nobarrier");
6047de54
YL		 2057 else
2058 seq_puts(seq, ",barrier");
d5053a34
JK		 2059 if (test_opt(sbi, FASTBOOT))
2060 seq_puts(seq, ",fastboot");
12607c1b 2061 if (test_opt(sbi, READ_EXTENT_CACHE))
89672159 2062 seq_puts(seq, ",extent_cache");
7daaea25
JK		 2063 else
2064 seq_puts(seq, ",noextent_cache");
71644dff
JK		 2065 if (test_opt(sbi, AGE_EXTENT_CACHE))
2066 seq_puts(seq, ",age_extent_cache");
343f40f0
CY		 2067 if (test_opt(sbi, DATA_FLUSH))
2068 seq_puts(seq, ",data_flush");
36abef4e
JK		 2069
2070 seq_puts(seq, ",mode=");
b0332a0f 2071 if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
36abef4e 2072 seq_puts(seq, "adaptive");
b0332a0f 2073 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
36abef4e 2074 seq_puts(seq, "lfs");
6691d940
DJ		 2075 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG)
2076 seq_puts(seq, "fragment:segment");
2077 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK)
2078 seq_puts(seq, "fragment:block");
63189b78 2079 seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
7e65be49 2080 if (test_opt(sbi, RESERVE_ROOT))
7c2e5963 2081 seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
63189b78
CY		 2082 F2FS_OPTION(sbi).root_reserved_blocks,
2083 from_kuid_munged(&init_user_ns,
2084 F2FS_OPTION(sbi).s_resuid),
2085 from_kgid_munged(&init_user_ns,
2086 F2FS_OPTION(sbi).s_resgid));
ec91538d 2087 if (F2FS_IO_SIZE_BITS(sbi))
c6b1867b
CX		 2088 seq_printf(seq, ",io_bits=%u",
2089 F2FS_OPTION(sbi).write_io_size_bits);
0cc0dec2 2090#ifdef CONFIG_F2FS_FAULT_INJECTION
d494500a 2091 if (test_opt(sbi, FAULT_INJECTION)) {
44529f89 2092 seq_printf(seq, ",fault_injection=%u",
63189b78 2093 F2FS_OPTION(sbi).fault_info.inject_rate);
d494500a
CY		 2094 seq_printf(seq, ",fault_type=%u",
2095 F2FS_OPTION(sbi).fault_info.inject_type);
2096 }
0cc0dec2 2097#endif
0abd675e 2098#ifdef CONFIG_QUOTA
4b2414d0
CY		 2099 if (test_opt(sbi, QUOTA))
2100 seq_puts(seq, ",quota");
0abd675e
CY		 2101 if (test_opt(sbi, USRQUOTA))
2102 seq_puts(seq, ",usrquota");
2103 if (test_opt(sbi, GRPQUOTA))
2104 seq_puts(seq, ",grpquota");
5c57132e
CY		 2105 if (test_opt(sbi, PRJQUOTA))
2106 seq_puts(seq, ",prjquota");
0cc0dec2 2107#endif
4b2414d0 2108 f2fs_show_quota_options(seq, sbi->sb);
ed318a6c
EB		 2109
2110 fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb);
aff063e2 2111
27aacd28
ST		 2112 if (sbi->sb->s_flags & SB_INLINECRYPT)
2113 seq_puts(seq, ",inlinecrypt");
2114
63189b78 2115 if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
07939627 2116 seq_printf(seq, ",alloc_mode=%s", "default");
63189b78 2117 else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
07939627 2118 seq_printf(seq, ",alloc_mode=%s", "reuse");
93cf93f1 2119
4354994f 2120 if (test_opt(sbi, DISABLE_CHECKPOINT))
4d3aed70
DR		 2121 seq_printf(seq, ",checkpoint=disable:%u",
2122 F2FS_OPTION(sbi).unusable_cap);
261eeb9c
DJ		 2123 if (test_opt(sbi, MERGE_CHECKPOINT))
2124 seq_puts(seq, ",checkpoint_merge");
2125 else
2126 seq_puts(seq, ",nocheckpoint_merge");
63189b78 2127 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
93cf93f1 2128 seq_printf(seq, ",fsync_mode=%s", "posix");
63189b78 2129 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
93cf93f1 2130 seq_printf(seq, ",fsync_mode=%s", "strict");
dc132802
ST		 2131 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
2132 seq_printf(seq, ",fsync_mode=%s", "nobarrier");
4c8ff709 2133
1f0b067b 2134#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709 2135 f2fs_show_compress_options(seq, sbi->sb);
1f0b067b 2136#endif
093749e2
CY		 2137
2138 if (test_opt(sbi, ATGC))
2139 seq_puts(seq, ",atgc");
4f993264 2140
7a8fc586
DJ		 2141 if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_NORMAL)
2142 seq_printf(seq, ",memory=%s", "normal");
2143 else if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW)
2144 seq_printf(seq, ",memory=%s", "low");
2145
b62e71be
CY		 2146 if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_READONLY)
2147 seq_printf(seq, ",errors=%s", "remount-ro");
2148 else if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_CONTINUE)
2149 seq_printf(seq, ",errors=%s", "continue");
2150 else if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_PANIC)
2151 seq_printf(seq, ",errors=%s", "panic");
2152
aff063e2
JK		 2153 return 0;
2154}
2155
458c15df 2156static void default_options(struct f2fs_sb_info *sbi, bool remount)
498c5e9f
YH		 2157{
2158 /* init some FS parameters */
458c15df
CY		 2159 if (!remount) {
2160 set_opt(sbi, READ_EXTENT_CACHE);
2161 clear_opt(sbi, DISABLE_CHECKPOINT);
2162
2163 if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
2164 set_opt(sbi, DISCARD);
2165
2166 if (f2fs_sb_has_blkzoned(sbi))
2167 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
2168 else
2169 F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
2170 }
2171
a7d9fe3c
JK		 2172 if (f2fs_sb_has_readonly(sbi))
2173 F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE;
2174 else
2175 F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;
2176
63189b78 2177 F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
b7ad23ce
YG		 2178 if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_main) <=
2179 SMALL_VOLUME_SEGMENTS)
2180 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
2181 else
2182 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
63189b78 2183 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
0aa7e0f8
CY		 2184 F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
2185 F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
c2c14ca5
YL		 2186 if (f2fs_sb_has_compression(sbi)) {
2187 F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
2188 F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
2189 F2FS_OPTION(sbi).compress_ext_cnt = 0;
2190 F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
2191 }
bbbc34fd 2192 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
7a8fc586 2193 F2FS_OPTION(sbi).memory_mode = MEMORY_MODE_NORMAL;
b62e71be 2194 F2FS_OPTION(sbi).errors = MOUNT_ERRORS_CONTINUE;
498c5e9f 2195
27aacd28
ST		 2196 sbi->sb->s_flags &= ~SB_INLINECRYPT;
2197
39133a50 2198 set_opt(sbi, INLINE_XATTR);
498c5e9f 2199 set_opt(sbi, INLINE_DATA);
97c1794a 2200 set_opt(sbi, INLINE_DENTRY);
7a20b8a6 2201 set_opt(sbi, NOHEAP);
b5d15199 2202 set_opt(sbi, MERGE_CHECKPOINT);
4d3aed70 2203 F2FS_OPTION(sbi).unusable_cap = 0;
1751e8a6 2204 sbi->sb->s_flags |= SB_LAZYTIME;
ed8ac22b 2205 if (!f2fs_is_readonly(sbi))
967eaad1 2206 set_opt(sbi, FLUSH_MERGE);
458c15df 2207 if (f2fs_sb_has_blkzoned(sbi))
b0332a0f 2208 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
458c15df 2209 else
b0332a0f 2210 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
498c5e9f
YH		 2211
2212#ifdef CONFIG_F2FS_FS_XATTR
2213 set_opt(sbi, XATTR_USER);
2214#endif
2215#ifdef CONFIG_F2FS_FS_POSIX_ACL
2216 set_opt(sbi, POSIX_ACL);
2217#endif
36dbd328 2218
d494500a 2219 f2fs_build_fault_attr(sbi, 0, 0);
498c5e9f
YH		 2220}
2221
ea676733
JK		 2222#ifdef CONFIG_QUOTA
2223static int f2fs_enable_quotas(struct super_block *sb);
2224#endif
4354994f
DR		 2225
2226static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
2227{
812a9597 2228 unsigned int s_flags = sbi->sb->s_flags;
4354994f 2229 struct cp_control cpc;
2880f47b 2230 unsigned int gc_mode = sbi->gc_mode;
812a9597
JK		 2231 int err = 0;
2232 int ret;
4d3aed70 2233 block_t unusable;
4354994f 2234
812a9597 2235 if (s_flags & SB_RDONLY) {
dcbb4c10 2236 f2fs_err(sbi, "checkpoint=disable on readonly fs");
812a9597
JK		 2237 return -EINVAL;
2238 }
4354994f
DR		 2239 sbi->sb->s_flags |= SB_ACTIVE;
2240
2880f47b
WG		 2241 /* check if we need more GC first */
2242 unusable = f2fs_get_unusable_blocks(sbi);
2243 if (!f2fs_disable_cp_again(sbi, unusable))
2244 goto skip_gc;
2245
4354994f
DR		 2246 f2fs_update_time(sbi, DISABLE_TIME);
2247
98e92867
CY		 2248 sbi->gc_mode = GC_URGENT_HIGH;
2249
4354994f 2250 while (!f2fs_time_over(sbi, DISABLE_TIME)) {
d147ea4a
JK		 2251 struct f2fs_gc_control gc_control = {
2252 .victim_segno = NULL_SEGNO,
2253 .init_gc_type = FG_GC,
2254 .should_migrate_blocks = false,
c81d5bae
JK		 2255 .err_gc_skipped = true,
2256 .nr_free_secs = 1 };
d147ea4a 2257
e4544b63 2258 f2fs_down_write(&sbi->gc_lock);
9bf1dcbd 2259 stat_inc_gc_call_count(sbi, FOREGROUND);
d147ea4a 2260 err = f2fs_gc(sbi, &gc_control);
812a9597
JK		 2261 if (err == -ENODATA) {
2262 err = 0;
4354994f 2263 break;
812a9597 2264 }
8f31b466 2265 if (err && err != -EAGAIN)
812a9597 2266 break;
4354994f 2267 }
4354994f 2268
812a9597
JK		 2269 ret = sync_filesystem(sbi->sb);
2270 if (ret || err) {
5f029c04 2271 err = ret ? ret : err;
812a9597
JK		 2272 goto restore_flag;
2273 }
4354994f 2274
4d3aed70
DR		 2275 unusable = f2fs_get_unusable_blocks(sbi);
2276 if (f2fs_disable_cp_again(sbi, unusable)) {
812a9597
JK		 2277 err = -EAGAIN;
2278 goto restore_flag;
2279 }
4354994f 2280
2880f47b 2281skip_gc:
e4544b63 2282 f2fs_down_write(&sbi->gc_lock);
4354994f
DR		 2283 cpc.reason = CP_PAUSE;
2284 set_sbi_flag(sbi, SBI_CP_DISABLED);
eb61c2cc 2285 stat_inc_cp_call_count(sbi, TOTAL_CALL);
896285ad
CY		 2286 err = f2fs_write_checkpoint(sbi, &cpc);
2287 if (err)
2288 goto out_unlock;
4354994f 2289
c9c8ed50 2290 spin_lock(&sbi->stat_lock);
4d3aed70 2291 sbi->unusable_block_count = unusable;
c9c8ed50
CY		 2292 spin_unlock(&sbi->stat_lock);
2293
896285ad 2294out_unlock:
e4544b63 2295 f2fs_up_write(&sbi->gc_lock);
812a9597 2296restore_flag:
98e92867 2297 sbi->gc_mode = gc_mode;
7a88ddb5 2298 sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
812a9597 2299 return err;
4354994f
DR		 2300}
2301
2302static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
2303{
dddd3d65
JK		 2304 int retry = DEFAULT_RETRY_IO_COUNT;
2305
b0ff4fe7 2306 /* we should flush all the data to keep data consistency */
dddd3d65
JK		 2307 do {
2308 sync_inodes_sb(sbi->sb);
a64239d0 2309 f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
dddd3d65
JK		 2310 } while (get_pages(sbi, F2FS_DIRTY_DATA) && retry--);
2311
2312 if (unlikely(retry < 0))
2313 f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
b0ff4fe7 2314
e4544b63 2315 f2fs_down_write(&sbi->gc_lock);
4354994f
DR		 2316 f2fs_dirty_to_prefree(sbi);
2317
2318 clear_sbi_flag(sbi, SBI_CP_DISABLED);
2319 set_sbi_flag(sbi, SBI_IS_DIRTY);
e4544b63 2320 f2fs_up_write(&sbi->gc_lock);
4354994f
DR		 2321
2322 f2fs_sync_fs(sbi->sb, 1);
4f99484d
JK		 2323
2324 /* Let's ensure there's no pending checkpoint anymore */
2325 f2fs_flush_ckpt_thread(sbi);
4354994f
DR		 2326}
2327
696c018c
NJ		 2328static int f2fs_remount(struct super_block *sb, int *flags, char *data)
2329{
2330 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2331 struct f2fs_mount_info org_mount_opt;
0abd675e 2332 unsigned long old_sb_flags;
63189b78 2333 int err;
3fd97359 2334 bool need_restart_gc = false, need_stop_gc = false;
3fd97359 2335 bool need_restart_flush = false, need_stop_flush = false;
4d674904 2336 bool need_restart_discard = false, need_stop_discard = false;
1e7bef5f 2337 bool need_enable_checkpoint = false, need_disable_checkpoint = false;
12607c1b 2338 bool no_read_extent_cache = !test_opt(sbi, READ_EXTENT_CACHE);
71644dff 2339 bool no_age_extent_cache = !test_opt(sbi, AGE_EXTENT_CACHE);
277afbde 2340 bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
1f78adfa 2341 bool no_io_align = !F2FS_IO_ALIGNED(sbi);
093749e2 2342 bool no_atgc = !test_opt(sbi, ATGC);
4d674904 2343 bool no_discard = !test_opt(sbi, DISCARD);
6ce19aff 2344 bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
4f993264 2345 bool block_unit_discard = f2fs_block_unit_discard(sbi);
4b2414d0 2346#ifdef CONFIG_QUOTA
4b2414d0
CY		 2347 int i, j;
2348#endif
696c018c
NJ		 2349
2350 /*
2351 * Save the old mount options in case we
2352 * need to restore them.
2353 */
2354 org_mount_opt = sbi->mount_opt;
0abd675e 2355 old_sb_flags = sb->s_flags;
696c018c 2356
4b2414d0 2357#ifdef CONFIG_QUOTA
63189b78 2358 org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt;
4b2414d0 2359 for (i = 0; i < MAXQUOTAS; i++) {
63189b78
CY		 2360 if (F2FS_OPTION(sbi).s_qf_names[i]) {
2361 org_mount_opt.s_qf_names[i] =
2362 kstrdup(F2FS_OPTION(sbi).s_qf_names[i],
2363 GFP_KERNEL);
2364 if (!org_mount_opt.s_qf_names[i]) {
4b2414d0 2365 for (j = 0; j < i; j++)
ba87a45c 2366 kfree(org_mount_opt.s_qf_names[j]);
4b2414d0
CY		 2367 return -ENOMEM;
2368 }
2369 } else {
63189b78 2370 org_mount_opt.s_qf_names[i] = NULL;
4b2414d0
CY		 2371 }
2372 }
2373#endif
2374
df728b0f 2375 /* recover superblocks we couldn't write due to previous RO mount */
1751e8a6 2376 if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
df728b0f 2377 err = f2fs_commit_super(sbi, false);
dcbb4c10
JP		 2378 f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
2379 err);
df728b0f
JK		 2380 if (!err)
2381 clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
2382 }
2383
458c15df 2384 default_options(sbi, true);
26666c8a 2385
696c018c 2386 /* parse mount options */
ed318a6c 2387 err = parse_options(sb, data, true);
696c018c
NJ		 2388 if (err)
2389 goto restore_opts;
2390
b62e71be
CY		 2391 /* flush outstanding errors before changing fs state */
2392 flush_work(&sbi->s_error_work);
2393
696c018c
NJ		 2394 /*
2395 * Previous and new state of filesystem is RO,
876dc59e 2396 * so skip checking GC and FLUSH_MERGE conditions.
696c018c 2397 */
1751e8a6 2398 if (f2fs_readonly(sb) && (*flags & SB_RDONLY))
696c018c
NJ		 2399 goto skip;
2400
d78dfefc 2401 if (f2fs_dev_is_readonly(sbi) && !(*flags & SB_RDONLY)) {
a7d9fe3c
JK		 2402 err = -EROFS;
2403 goto restore_opts;
2404 }
2405
ea676733 2406#ifdef CONFIG_QUOTA
1751e8a6 2407 if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) {
0abd675e
CY		 2408 err = dquot_suspend(sb, -1);
2409 if (err < 0)
2410 goto restore_opts;
4354994f 2411 } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
0abd675e 2412 /* dquot_resume needs RW */
1751e8a6 2413 sb->s_flags &= ~SB_RDONLY;
ea676733
JK		 2414 if (sb_any_quota_suspended(sb)) {
2415 dquot_resume(sb, -1);
7beb01f7 2416 } else if (f2fs_sb_has_quota_ino(sbi)) {
ea676733
JK		 2417 err = f2fs_enable_quotas(sb);
2418 if (err)
2419 goto restore_opts;
2420 }
0abd675e 2421 }
ea676733 2422#endif
c5bf8348
YL		 2423 if (f2fs_lfs_mode(sbi) && !IS_F2FS_IPU_DISABLE(sbi)) {
2424 err = -EINVAL;
2425 f2fs_warn(sbi, "LFS is not compatible with IPU");
2426 goto restore_opts;
2427 }
2428
093749e2
CY		 2429 /* disallow enable atgc dynamically */
2430 if (no_atgc == !!test_opt(sbi, ATGC)) {
2431 err = -EINVAL;
2432 f2fs_warn(sbi, "switch atgc option is not allowed");
2433 goto restore_opts;
2434 }
2435
9cd81ce3 2436 /* disallow enable/disable extent_cache dynamically */
12607c1b 2437 if (no_read_extent_cache == !!test_opt(sbi, READ_EXTENT_CACHE)) {
9cd81ce3 2438 err = -EINVAL;
dcbb4c10 2439 f2fs_warn(sbi, "switch extent_cache option is not allowed");
9cd81ce3
CY		 2440 goto restore_opts;
2441 }
71644dff
JK		 2442 /* disallow enable/disable age extent_cache dynamically */
2443 if (no_age_extent_cache == !!test_opt(sbi, AGE_EXTENT_CACHE)) {
2444 err = -EINVAL;
2445 f2fs_warn(sbi, "switch age_extent_cache option is not allowed");
2446 goto restore_opts;
2447 }
9cd81ce3 2448
1f78adfa
CY		 2449 if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
2450 err = -EINVAL;
2451 f2fs_warn(sbi, "switch io_bits option is not allowed");
2452 goto restore_opts;
2453 }
2454
6ce19aff
CY		 2455 if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) {
2456 err = -EINVAL;
2457 f2fs_warn(sbi, "switch compress_cache option is not allowed");
2458 goto restore_opts;
2459 }
2460
4f993264
CY		 2461 if (block_unit_discard != f2fs_block_unit_discard(sbi)) {
2462 err = -EINVAL;
2463 f2fs_warn(sbi, "switch discard_unit option is not allowed");
2464 goto restore_opts;
2465 }
2466
4354994f
DR		 2467 if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
2468 err = -EINVAL;
dcbb4c10 2469 f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
4354994f
DR		 2470 goto restore_opts;
2471 }
2472
696c018c
NJ		 2473 /*
2474 * We stop the GC thread if FS is mounted as RO
2475 * or if background_gc = off is passed in mount
2476 * option. Also sync the filesystem.
2477 */
bbbc34fd 2478 if ((*flags & SB_RDONLY) ||
5911d2d1
CY		 2479 (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF &&
2480 !test_opt(sbi, GC_MERGE))) {
696c018c 2481 if (sbi->gc_thread) {
4d57b86d 2482 f2fs_stop_gc_thread(sbi);
876dc59e 2483 need_restart_gc = true;
696c018c 2484 }
aba291b3 2485 } else if (!sbi->gc_thread) {
4d57b86d 2486 err = f2fs_start_gc_thread(sbi);
696c018c
NJ		 2487 if (err)
2488 goto restore_opts;
876dc59e
GZ		 2489 need_stop_gc = true;
2490 }
2491
930e2607 2492 if (*flags & SB_RDONLY) {
faa0e55b
JK		 2493 sync_inodes_sb(sb);
2494
2495 set_sbi_flag(sbi, SBI_IS_DIRTY);
2496 set_sbi_flag(sbi, SBI_IS_CLOSE);
2497 f2fs_sync_fs(sb, 1);
2498 clear_sbi_flag(sbi, SBI_IS_CLOSE);
2499 }
2500
876dc59e
GZ		 2501 /*
2502 * We stop issue flush thread if FS is mounted as RO
2503 * or if flush_merge is not passed in mount option.
2504 */
1751e8a6 2505 if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) {
5eba8c5d 2506 clear_opt(sbi, FLUSH_MERGE);
4d57b86d 2507 f2fs_destroy_flush_cmd_control(sbi, false);
3fd97359 2508 need_restart_flush = true;
5eba8c5d 2509 } else {
4d57b86d 2510 err = f2fs_create_flush_cmd_control(sbi);
2163d198 2511 if (err)
1e7bef5f 2512 goto restore_gc;
3fd97359 2513 need_stop_flush = true;
696c018c 2514 }
3fd97359 2515
4d674904
FC		 2516 if (no_discard == !!test_opt(sbi, DISCARD)) {
2517 if (test_opt(sbi, DISCARD)) {
2518 err = f2fs_start_discard_thread(sbi);
2519 if (err)
2520 goto restore_flush;
2521 need_stop_discard = true;
2522 } else {
4d674904 2523 f2fs_stop_discard_thread(sbi);
25547439 2524 f2fs_issue_discard_timeout(sbi);
4d674904
FC		 2525 need_restart_discard = true;
2526 }
2527 }
2528
277afbde 2529 if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
3fd97359
CY		 2530 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
2531 err = f2fs_disable_checkpoint(sbi);
2532 if (err)
4d674904 2533 goto restore_discard;
1e7bef5f 2534 need_enable_checkpoint = true;
3fd97359
CY		 2535 } else {
2536 f2fs_enable_checkpoint(sbi);
1e7bef5f
DJ		 2537 need_disable_checkpoint = true;
2538 }
2539 }
2540
2541 /*
2542 * Place this routine at the end, since a new checkpoint would be
2543 * triggered while remount and we need to take care of it before
2544 * returning from remount.
2545 */
2546 if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) ||
2547 !test_opt(sbi, MERGE_CHECKPOINT)) {
2548 f2fs_stop_ckpt_thread(sbi);
2549 } else {
2550 /* Flush if the prevous checkpoint, if exists. */
2551 f2fs_flush_ckpt_thread(sbi);
2552
2553 err = f2fs_start_ckpt_thread(sbi);
2554 if (err) {
2555 f2fs_err(sbi,
2556 "Failed to start F2FS issue_checkpoint_thread (%d)",
2557 err);
2558 goto restore_checkpoint;
3fd97359
CY		 2559 }
2560 }
2561
696c018c 2562skip:
4b2414d0
CY		 2563#ifdef CONFIG_QUOTA
2564 /* Release old quota file names */
2565 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 2566 kfree(org_mount_opt.s_qf_names[i]);
4b2414d0 2567#endif
696c018c 2568 /* Update the POSIXACL Flag */
1751e8a6
LT		 2569 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
2570 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
df728b0f 2571
7e65be49 2572 limit_reserve_root(sbi);
1ae18f71 2573 adjust_unusable_cap_perc(sbi);
095680f2 2574 *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
696c018c 2575 return 0;
1e7bef5f
DJ		 2576restore_checkpoint:
2577 if (need_enable_checkpoint) {
2578 f2fs_enable_checkpoint(sbi);
2579 } else if (need_disable_checkpoint) {
2580 if (f2fs_disable_checkpoint(sbi))
2581 f2fs_warn(sbi, "checkpoint has not been disabled");
2582 }
4d674904
FC		 2583restore_discard:
2584 if (need_restart_discard) {
2585 if (f2fs_start_discard_thread(sbi))
2586 f2fs_warn(sbi, "discard has been stopped");
2587 } else if (need_stop_discard) {
2588 f2fs_stop_discard_thread(sbi);
2589 }
3fd97359
CY		 2590restore_flush:
2591 if (need_restart_flush) {
2592 if (f2fs_create_flush_cmd_control(sbi))
2593 f2fs_warn(sbi, "background flush thread has stopped");
2594 } else if (need_stop_flush) {
2595 clear_opt(sbi, FLUSH_MERGE);
2596 f2fs_destroy_flush_cmd_control(sbi, false);
2597 }
876dc59e
GZ		 2598restore_gc:
2599 if (need_restart_gc) {
4d57b86d 2600 if (f2fs_start_gc_thread(sbi))
dcbb4c10 2601 f2fs_warn(sbi, "background gc thread has stopped");
876dc59e 2602 } else if (need_stop_gc) {
4d57b86d 2603 f2fs_stop_gc_thread(sbi);
876dc59e 2604 }
696c018c 2605restore_opts:
4b2414d0 2606#ifdef CONFIG_QUOTA
63189b78 2607 F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
4b2414d0 2608 for (i = 0; i < MAXQUOTAS; i++) {
ba87a45c 2609 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
63189b78 2610 F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
4b2414d0
CY		 2611 }
2612#endif
696c018c 2613 sbi->mount_opt = org_mount_opt;
0abd675e 2614 sb->s_flags = old_sb_flags;
696c018c
NJ		 2615 return err;
2616}
2617
0abd675e 2618#ifdef CONFIG_QUOTA
e1bb7d3d
CY		 2619static bool f2fs_need_recovery(struct f2fs_sb_info *sbi)
2620{
2621 /* need to recovery orphan */
2622 if (is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG))
2623 return true;
2624 /* need to recovery data */
2625 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
2626 return false;
2627 if (test_opt(sbi, NORECOVERY))
2628 return false;
2629 return !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG);
2630}
2631
2632static bool f2fs_recover_quota_begin(struct f2fs_sb_info *sbi)
2633{
2634 bool readonly = f2fs_readonly(sbi->sb);
2635
2636 if (!f2fs_need_recovery(sbi))
2637 return false;
2638
2639 /* it doesn't need to check f2fs_sb_has_readonly() */
2640 if (f2fs_hw_is_readonly(sbi))
2641 return false;
2642
2643 if (readonly) {
2644 sbi->sb->s_flags &= ~SB_RDONLY;
2645 set_sbi_flag(sbi, SBI_IS_WRITABLE);
2646 }
2647
2648 /*
2649 * Turn on quotas which were not enabled for read-only mounts if
2650 * filesystem has quota feature, so that they are updated correctly.
2651 */
2652 return f2fs_enable_quota_files(sbi, readonly);
2653}
2654
2655static void f2fs_recover_quota_end(struct f2fs_sb_info *sbi,
2656 bool quota_enabled)
2657{
2658 if (quota_enabled)
2659 f2fs_quota_off_umount(sbi->sb);
2660
2661 if (is_sbi_flag_set(sbi, SBI_IS_WRITABLE)) {
2662 clear_sbi_flag(sbi, SBI_IS_WRITABLE);
2663 sbi->sb->s_flags |= SB_RDONLY;
2664 }
2665}
2666
0abd675e
CY		 2667/* Read data from quotafile */
2668static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
2669 size_t len, loff_t off)
2670{
2671 struct inode *inode = sb_dqopt(sb)->files[type];
2672 struct address_space *mapping = inode->i_mapping;
2673 block_t blkidx = F2FS_BYTES_TO_BLK(off);
2674 int offset = off & (sb->s_blocksize - 1);
2675 int tocopy;
2676 size_t toread;
2677 loff_t i_size = i_size_read(inode);
2678 struct page *page;
0abd675e
CY		 2679
2680 if (off > i_size)
2681 return 0;
2682
2683 if (off + len > i_size)
2684 len = i_size - off;
2685 toread = len;
2686 while (toread > 0) {
2687 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
2688repeat:
02117b8a 2689 page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
4e46a023
JK		 2690 if (IS_ERR(page)) {
2691 if (PTR_ERR(page) == -ENOMEM) {
4034247a 2692 memalloc_retry_wait(GFP_NOFS);
4e46a023
JK		 2693 goto repeat;
2694 }
af033b2a 2695 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2696 return PTR_ERR(page);
4e46a023 2697 }
0abd675e
CY		 2698
2699 lock_page(page);
2700
2701 if (unlikely(page->mapping != mapping)) {
2702 f2fs_put_page(page, 1);
2703 goto repeat;
2704 }
2705 if (unlikely(!PageUptodate(page))) {
2706 f2fs_put_page(page, 1);
af033b2a 2707 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e
CY		 2708 return -EIO;
2709 }
2710
b87846bd 2711 memcpy_from_page(data, page, offset, tocopy);
0abd675e
CY		 2712 f2fs_put_page(page, 1);
2713
2714 offset = 0;
2715 toread -= tocopy;
2716 data += tocopy;
2717 blkidx++;
2718 }
2719 return len;
2720}
2721
2722/* Write to quotafile */
2723static ssize_t f2fs_quota_write(struct super_block *sb, int type,
2724 const char *data, size_t len, loff_t off)
2725{
2726 struct inode *inode = sb_dqopt(sb)->files[type];
2727 struct address_space *mapping = inode->i_mapping;
2728 const struct address_space_operations *a_ops = mapping->a_ops;
2729 int offset = off & (sb->s_blocksize - 1);
2730 size_t towrite = len;
2731 struct page *page;
62f63eea 2732 void *fsdata = NULL;
0abd675e
CY		 2733 int err = 0;
2734 int tocopy;
2735
2736 while (towrite > 0) {
2737 tocopy = min_t(unsigned long, sb->s_blocksize - offset,
2738 towrite);
4e46a023 2739retry:
9d6b0cd7 2740 err = a_ops->write_begin(NULL, mapping, off, tocopy,
62f63eea 2741 &page, &fsdata);
4e46a023
JK		 2742 if (unlikely(err)) {
2743 if (err == -ENOMEM) {
a64239d0 2744 f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
4e46a023
JK		 2745 goto retry;
2746 }
af033b2a 2747 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 2748 break;
4e46a023 2749 }
0abd675e 2750
b87846bd 2751 memcpy_to_page(page, offset, data, tocopy);
0abd675e
CY		 2752
2753 a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
62f63eea 2754 page, fsdata);
0abd675e
CY		 2755 offset = 0;
2756 towrite -= tocopy;
2757 off += tocopy;
2758 data += tocopy;
2759 cond_resched();
2760 }
2761
2762 if (len == towrite)
6e5b5d41 2763 return err;
11cc6426 2764 inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
0abd675e
CY		 2765 f2fs_mark_inode_dirty_sync(inode, false);
2766 return len - towrite;
2767}
2768
10a26878
CY		 2769int f2fs_dquot_initialize(struct inode *inode)
2770{
c40e15a9 2771 if (time_to_inject(F2FS_I_SB(inode), FAULT_DQUOT_INIT))
10a26878 2772 return -ESRCH;
10a26878
CY		 2773
2774 return dquot_initialize(inode);
2775}
2776
0abd675e
CY		 2777static struct dquot **f2fs_get_dquots(struct inode *inode)
2778{
2779 return F2FS_I(inode)->i_dquot;
2780}
2781
2782static qsize_t *f2fs_get_reserved_space(struct inode *inode)
2783{
2784 return &F2FS_I(inode)->i_reserved_quota;
2785}
2786
4b2414d0
CY		 2787static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
2788{
af033b2a 2789 if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2790 f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
af033b2a
CY		 2791 return 0;
2792 }
2793
63189b78
CY		 2794 return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
2795 F2FS_OPTION(sbi).s_jquota_fmt, type);
4b2414d0
CY		 2796}
2797
ea676733 2798int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
4b2414d0 2799{
ea676733
JK		 2800 int enabled = 0;
2801 int i, err;
2802
7beb01f7 2803 if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
ea676733
JK		 2804 err = f2fs_enable_quotas(sbi->sb);
2805 if (err) {
dcbb4c10 2806 f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
ea676733
JK		 2807 return 0;
2808 }
2809 return 1;
2810 }
4b2414d0
CY		 2811
2812 for (i = 0; i < MAXQUOTAS; i++) {
63189b78 2813 if (F2FS_OPTION(sbi).s_qf_names[i]) {
ea676733
JK		 2814 err = f2fs_quota_on_mount(sbi, i);
2815 if (!err) {
2816 enabled = 1;
2817 continue;
2818 }
dcbb4c10
JP		 2819 f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
2820 err, i);
4b2414d0
CY		 2821 }
2822 }
ea676733
JK		 2823 return enabled;
2824}
2825
2826static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
2827 unsigned int flags)
2828{
2829 struct inode *qf_inode;
2830 unsigned long qf_inum;
ccf3ff2b 2831 unsigned long qf_flag = F2FS_QUOTA_DEFAULT_FL;
ea676733
JK		 2832 int err;
2833
7beb01f7 2834 BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
ea676733
JK		 2835
2836 qf_inum = f2fs_qf_ino(sb, type);
2837 if (!qf_inum)
2838 return -EPERM;
2839
2840 qf_inode = f2fs_iget(sb, qf_inum);
2841 if (IS_ERR(qf_inode)) {
dcbb4c10 2842 f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
ea676733
JK		 2843 return PTR_ERR(qf_inode);
2844 }
2845
2846 /* Don't account quota for quota files to avoid recursion */
90b7c4b7 2847 inode_lock(qf_inode);
ea676733 2848 qf_inode->i_flags |= S_NOQUOTA;
90b7c4b7
CY		 2849
2850 if ((F2FS_I(qf_inode)->i_flags & qf_flag) != qf_flag) {
2851 F2FS_I(qf_inode)->i_flags |= qf_flag;
2852 f2fs_set_inode_flags(qf_inode);
2853 }
2854 inode_unlock(qf_inode);
2855
7212b95e 2856 err = dquot_load_quota_inode(qf_inode, type, format_id, flags);
ea676733
JK		 2857 iput(qf_inode);
2858 return err;
2859}
2860
2861static int f2fs_enable_quotas(struct super_block *sb)
2862{
dcbb4c10 2863 struct f2fs_sb_info *sbi = F2FS_SB(sb);
ea676733
JK		 2864 int type, err = 0;
2865 unsigned long qf_inum;
2866 bool quota_mopt[MAXQUOTAS] = {
dcbb4c10
JP		 2867 test_opt(sbi, USRQUOTA),
2868 test_opt(sbi, GRPQUOTA),
2869 test_opt(sbi, PRJQUOTA),
ea676733
JK		 2870 };
2871
af033b2a 2872 if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2873 f2fs_err(sbi, "quota file may be corrupted, skip loading it");
af033b2a
CY		 2874 return 0;
2875 }
2876
2877 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
2878
ea676733
JK		 2879 for (type = 0; type < MAXQUOTAS; type++) {
2880 qf_inum = f2fs_qf_ino(sb, type);
2881 if (qf_inum) {
2882 err = f2fs_quota_enable(sb, type, QFMT_VFS_V1,
2883 DQUOT_USAGE_ENABLED |
2884 (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
2885 if (err) {
dcbb4c10
JP		 2886 f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
2887 type, err);
ea676733
JK		 2888 for (type--; type >= 0; type--)
2889 dquot_quota_off(sb, type);
af033b2a
CY		 2890 set_sbi_flag(F2FS_SB(sb),
2891 SBI_QUOTA_NEED_REPAIR);
ea676733
JK		 2892 return err;
2893 }
4b2414d0
CY		 2894 }
2895 }
ea676733 2896 return 0;
4b2414d0
CY		 2897}
2898
9de71ede
CY		 2899static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type)
2900{
2901 struct quota_info *dqopt = sb_dqopt(sbi->sb);
2902 struct address_space *mapping = dqopt->files[type]->i_mapping;
2903 int ret = 0;
2904
2905 ret = dquot_writeback_dquots(sbi->sb, type);
2906 if (ret)
2907 goto out;
2908
2909 ret = filemap_fdatawrite(mapping);
2910 if (ret)
2911 goto out;
2912
2913 /* if we are using journalled quota */
2914 if (is_journalled_quota(sbi))
2915 goto out;
2916
2917 ret = filemap_fdatawait(mapping);
2918
2919 truncate_inode_pages(&dqopt->files[type]->i_data, 0);
2920out:
2921 if (ret)
2922 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2923 return ret;
2924}
2925
af033b2a 2926int f2fs_quota_sync(struct super_block *sb, int type)
0abd675e 2927{
af033b2a 2928 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0abd675e
CY		 2929 struct quota_info *dqopt = sb_dqopt(sb);
2930 int cnt;
680af5b8 2931 int ret = 0;
0abd675e 2932
0abd675e
CY		 2933 /*
2934 * Now when everything is written we can discard the pagecache so
2935 * that userspace sees the changes.
2936 */
2937 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
af033b2a 2938
0abd675e
CY		 2939 if (type != -1 && cnt != type)
2940 continue;
0abd675e 2941
680af5b8
JP		 2942 if (!sb_has_quota_active(sb, cnt))
2943 continue;
af033b2a 2944
6213f5d4
JK		 2945 if (!f2fs_sb_has_quota_ino(sbi))
2946 inode_lock(dqopt->files[cnt]);
af033b2a 2947
9de71ede
CY		 2948 /*
2949 * do_quotactl
2950 * f2fs_quota_sync
e4544b63 2951 * f2fs_down_read(quota_sem)
9de71ede
CY		 2952 * dquot_writeback_dquots()
2953 * f2fs_dquot_commit
2954 * block_operation
e4544b63 2955 * f2fs_down_read(quota_sem)
9de71ede
CY		 2956 */
2957 f2fs_lock_op(sbi);
e4544b63 2958 f2fs_down_read(&sbi->quota_sem);
af033b2a 2959
9de71ede
CY		 2960 ret = f2fs_quota_sync_file(sbi, cnt);
2961
e4544b63 2962 f2fs_up_read(&sbi->quota_sem);
9de71ede 2963 f2fs_unlock_op(sbi);
0abd675e 2964
6213f5d4
JK		 2965 if (!f2fs_sb_has_quota_ino(sbi))
2966 inode_unlock(dqopt->files[cnt]);
9de71ede
CY		 2967
2968 if (ret)
2969 break;
0abd675e 2970 }
af033b2a 2971 return ret;
0abd675e
CY		 2972}
2973
2974static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
2975 const struct path *path)
2976{
2977 struct inode *inode;
2978 int err;
2979
fe973b06
CY		 2980 /* if quota sysfile exists, deny enabling quota with specific file */
2981 if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
2982 f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
2983 return -EBUSY;
2984 }
2985
5079e1c0
CY		 2986 if (path->dentry->d_sb != sb)
2987 return -EXDEV;
2988
9a20d391 2989 err = f2fs_quota_sync(sb, type);
0abd675e
CY		 2990 if (err)
2991 return err;
2992
5079e1c0
CY		 2993 inode = d_inode(path->dentry);
2994
2995 err = filemap_fdatawrite(inode->i_mapping);
0abd675e
CY		 2996 if (err)
2997 return err;
2998
5079e1c0
CY		 2999 err = filemap_fdatawait(inode->i_mapping);
3000 if (err)
3001 return err;
3002
3003 err = dquot_quota_on(sb, type, format_id, path);
3004 if (err)
3005 return err;
0abd675e
CY		 3006
3007 inode_lock(inode);
ccf3ff2b 3008 F2FS_I(inode)->i_flags |= F2FS_QUOTA_DEFAULT_FL;
9149a5eb 3009 f2fs_set_inode_flags(inode);
0abd675e
CY		 3010 inode_unlock(inode);
3011 f2fs_mark_inode_dirty_sync(inode, false);
3012
3013 return 0;
3014}
3015
fe973b06 3016static int __f2fs_quota_off(struct super_block *sb, int type)
0abd675e
CY		 3017{
3018 struct inode *inode = sb_dqopt(sb)->files[type];
3019 int err;
3020
3021 if (!inode || !igrab(inode))
3022 return dquot_quota_off(sb, type);
3023
cda9cc59
YH		 3024 err = f2fs_quota_sync(sb, type);
3025 if (err)
3026 goto out_put;
0abd675e
CY		 3027
3028 err = dquot_quota_off(sb, type);
7beb01f7 3029 if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
0abd675e
CY		 3030 goto out_put;
3031
3032 inode_lock(inode);
ccf3ff2b 3033 F2FS_I(inode)->i_flags &= ~F2FS_QUOTA_DEFAULT_FL;
9149a5eb 3034 f2fs_set_inode_flags(inode);
0abd675e
CY		 3035 inode_unlock(inode);
3036 f2fs_mark_inode_dirty_sync(inode, false);
3037out_put:
3038 iput(inode);
3039 return err;
3040}
3041
fe973b06
CY		 3042static int f2fs_quota_off(struct super_block *sb, int type)
3043{
3044 struct f2fs_sb_info *sbi = F2FS_SB(sb);
3045 int err;
3046
3047 err = __f2fs_quota_off(sb, type);
3048
3049 /*
3050 * quotactl can shutdown journalled quota, result in inconsistence
3051 * between quota record and fs data by following updates, tag the
3052 * flag to let fsck be aware of it.
3053 */
3054 if (is_journalled_quota(sbi))
3055 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
3056 return err;
3057}
3058
4b2414d0 3059void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 3060{
3061 int type;
cda9cc59
YH		 3062 int err;
3063
3064 for (type = 0; type < MAXQUOTAS; type++) {
fe973b06 3065 err = __f2fs_quota_off(sb, type);
cda9cc59
YH		 3066 if (err) {
3067 int ret = dquot_quota_off(sb, type);
0abd675e 3068
dcbb4c10
JP		 3069 f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
3070 type, err, ret);
af033b2a 3071 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
cda9cc59
YH		 3072 }
3073 }
0e0667b6
JK		 3074 /*
3075 * In case of checkpoint=disable, we must flush quota blocks.
3076 * This can cause NULL exception for node_inode in end_io, since
3077 * put_super already dropped it.
3078 */
3079 sync_filesystem(sb);
0abd675e
CY		 3080}
3081
26b5a079
SY		 3082static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
3083{
3084 struct quota_info *dqopt = sb_dqopt(sb);
3085 int type;
3086
3087 for (type = 0; type < MAXQUOTAS; type++) {
3088 if (!dqopt->files[type])
3089 continue;
3090 f2fs_inode_synced(dqopt->files[type]);
3091 }
3092}
3093
af033b2a
CY		 3094static int f2fs_dquot_commit(struct dquot *dquot)
3095{
db6ec53b 3096 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 3097 int ret;
3098
e4544b63 3099 f2fs_down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
af033b2a
CY		 3100 ret = dquot_commit(dquot);
3101 if (ret < 0)
db6ec53b 3102 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
e4544b63 3103 f2fs_up_read(&sbi->quota_sem);
af033b2a
CY		 3104 return ret;
3105}
3106
3107static int f2fs_dquot_acquire(struct dquot *dquot)
3108{
db6ec53b 3109 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 3110 int ret;
3111
e4544b63 3112 f2fs_down_read(&sbi->quota_sem);
af033b2a
CY		 3113 ret = dquot_acquire(dquot);
3114 if (ret < 0)
db6ec53b 3115 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
e4544b63 3116 f2fs_up_read(&sbi->quota_sem);
af033b2a
CY		 3117 return ret;
3118}
3119
3120static int f2fs_dquot_release(struct dquot *dquot)
3121{
db6ec53b 3122 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
2c4e0c52 3123 int ret = dquot_release(dquot);
af033b2a 3124
af033b2a 3125 if (ret < 0)
db6ec53b 3126 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 3127 return ret;
3128}
3129
3130static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
3131{
3132 struct super_block *sb = dquot->dq_sb;
3133 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 3134 int ret = dquot_mark_dquot_dirty(dquot);
af033b2a
CY		 3135
3136 /* if we are using journalled quota */
3137 if (is_journalled_quota(sbi))
3138 set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
3139
3140 return ret;
3141}
3142
3143static int f2fs_dquot_commit_info(struct super_block *sb, int type)
3144{
db6ec53b 3145 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 3146 int ret = dquot_commit_info(sb, type);
af033b2a 3147
af033b2a 3148 if (ret < 0)
db6ec53b 3149 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 3150 return ret;
3151}
26b5a079 3152
94b1e10e 3153static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
5c57132e
CY		 3154{
3155 *projid = F2FS_I(inode)->i_projid;
3156 return 0;
3157}
3158
0abd675e
CY		 3159static const struct dquot_operations f2fs_quota_operations = {
3160 .get_reserved_space = f2fs_get_reserved_space,
af033b2a
CY		 3161 .write_dquot = f2fs_dquot_commit,
3162 .acquire_dquot = f2fs_dquot_acquire,
3163 .release_dquot = f2fs_dquot_release,
3164 .mark_dirty = f2fs_dquot_mark_dquot_dirty,
3165 .write_info = f2fs_dquot_commit_info,
0abd675e
CY		 3166 .alloc_dquot = dquot_alloc,
3167 .destroy_dquot = dquot_destroy,
5c57132e 3168 .get_projid = f2fs_get_projid,
0abd675e
CY		 3169 .get_next_id = dquot_get_next_id,
3170};
3171
3172static const struct quotactl_ops f2fs_quotactl_ops = {
3173 .quota_on = f2fs_quota_on,
3174 .quota_off = f2fs_quota_off,
3175 .quota_sync = f2fs_quota_sync,
3176 .get_state = dquot_get_state,
3177 .set_info = dquot_set_dqinfo,
3178 .get_dqblk = dquot_get_dqblk,
3179 .set_dqblk = dquot_set_dqblk,
3180 .get_nextdqblk = dquot_get_next_dqblk,
3181};
3182#else
10a26878
CY		 3183int f2fs_dquot_initialize(struct inode *inode)
3184{
3185 return 0;
3186}
3187
af033b2a
CY		 3188int f2fs_quota_sync(struct super_block *sb, int type)
3189{
3190 return 0;
3191}
3192
4b2414d0 3193void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 3194{
3195}
3196#endif
3197
f62fc9f9 3198static const struct super_operations f2fs_sops = {
aff063e2 3199 .alloc_inode = f2fs_alloc_inode,
d01718a0 3200 .free_inode = f2fs_free_inode,
531ad7d5 3201 .drop_inode = f2fs_drop_inode,
aff063e2 3202 .write_inode = f2fs_write_inode,
b3783873 3203 .dirty_inode = f2fs_dirty_inode,
aff063e2 3204 .show_options = f2fs_show_options,
0abd675e
CY		 3205#ifdef CONFIG_QUOTA
3206 .quota_read = f2fs_quota_read,
3207 .quota_write = f2fs_quota_write,
3208 .get_dquots = f2fs_get_dquots,
3209#endif
aff063e2
JK		 3210 .evict_inode = f2fs_evict_inode,
3211 .put_super = f2fs_put_super,
3212 .sync_fs = f2fs_sync_fs,
d6212a5f
CL		 3213 .freeze_fs = f2fs_freeze,
3214 .unfreeze_fs = f2fs_unfreeze,
aff063e2 3215 .statfs = f2fs_statfs,
696c018c 3216 .remount_fs = f2fs_remount,
aff063e2
JK		 3217};
3218
643fa961 3219#ifdef CONFIG_FS_ENCRYPTION
0b81d077
JK		 3220static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
3221{
3222 return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
3223 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
3224 ctx, len, NULL);
3225}
3226
3227static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
3228 void *fs_data)
3229{
b7c409de
SY		 3230 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3231
3232 /*
3233 * Encrypting the root directory is not allowed because fsck
3234 * expects lost+found directory to exist and remain unencrypted
3235 * if LOST_FOUND feature is enabled.
3236 *
3237 */
7beb01f7 3238 if (f2fs_sb_has_lost_found(sbi) &&
b7c409de
SY		 3239 inode->i_ino == F2FS_ROOT_INO(sbi))
3240 return -EPERM;
3241
0b81d077
JK		 3242 return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
3243 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
3244 ctx, len, fs_data, XATTR_CREATE);
3245}
3246
ac4acb1f 3247static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb)
ff62af20 3248{
ac4acb1f 3249 return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy;
ff62af20
SY		 3250}
3251
0eee17e3
EB		 3252static bool f2fs_has_stable_inodes(struct super_block *sb)
3253{
3254 return true;
3255}
3256
0e91fc1e
CH		 3257static struct block_device **f2fs_get_devices(struct super_block *sb,
3258 unsigned int *num_devs)
27aacd28
ST		 3259{
3260 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0e91fc1e
CH		 3261 struct block_device **devs;
3262 int i;
27aacd28 3263
0e91fc1e
CH		 3264 if (!f2fs_is_multi_device(sbi))
3265 return NULL;
27aacd28 3266
0e91fc1e
CH		 3267 devs = kmalloc_array(sbi->s_ndevs, sizeof(*devs), GFP_KERNEL);
3268 if (!devs)
3269 return ERR_PTR(-ENOMEM);
27aacd28
ST		 3270
3271 for (i = 0; i < sbi->s_ndevs; i++)
0e91fc1e
CH		 3272 devs[i] = FDEV(i).bdev;
3273 *num_devs = sbi->s_ndevs;
3274 return devs;
27aacd28
ST		 3275}
3276
6f69f0ed 3277static const struct fscrypt_operations f2fs_cryptops = {
40e13e18 3278 .needs_bounce_pages = 1,
7a0263dc 3279 .has_32bit_inodes = 1,
5b118884 3280 .supports_subblock_data_units = 1,
5970fbad 3281 .legacy_key_prefix = "f2fs:",
0eee17e3
EB		 3282 .get_context = f2fs_get_context,
3283 .set_context = f2fs_set_context,
ac4acb1f 3284 .get_dummy_policy = f2fs_get_dummy_policy,
0eee17e3 3285 .empty_dir = f2fs_empty_dir,
0eee17e3 3286 .has_stable_inodes = f2fs_has_stable_inodes,
27aacd28 3287 .get_devices = f2fs_get_devices,
0b81d077 3288};
0b81d077
JK		 3289#endif
3290
aff063e2
JK		 3291static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
3292 u64 ino, u32 generation)
3293{
3294 struct f2fs_sb_info *sbi = F2FS_SB(sb);
3295 struct inode *inode;
3296
4d57b86d 3297 if (f2fs_check_nid_range(sbi, ino))
910bb12d 3298 return ERR_PTR(-ESTALE);
aff063e2
JK		 3299
3300 /*
3301 * f2fs_iget isn't quite right if the inode is currently unallocated!
3302 * However f2fs_iget currently does appropriate checks to handle stale
3303 * inodes so everything is OK.
3304 */
3305 inode = f2fs_iget(sb, ino);
3306 if (IS_ERR(inode))
3307 return ERR_CAST(inode);
6bacf52f 3308 if (unlikely(generation && inode->i_generation != generation)) {
aff063e2
JK		 3309 /* we didn't find the right inode.. */
3310 iput(inode);
3311 return ERR_PTR(-ESTALE);
3312 }
3313 return inode;
3314}
3315
3316static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
3317 int fh_len, int fh_type)
3318{
3319 return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
3320 f2fs_nfs_get_inode);
3321}
3322
3323static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid,
3324 int fh_len, int fh_type)
3325{
3326 return generic_fh_to_parent(sb, fid, fh_len, fh_type,
3327 f2fs_nfs_get_inode);
3328}
3329
3330static const struct export_operations f2fs_export_ops = {
e21fc203 3331 .encode_fh = generic_encode_ino32_fh,
aff063e2
JK		 3332 .fh_to_dentry = f2fs_fh_to_dentry,
3333 .fh_to_parent = f2fs_fh_to_parent,
3334 .get_parent = f2fs_get_parent,
3335};
3336
6d1451bf 3337loff_t max_file_blocks(struct inode *inode)
aff063e2 3338{
7a2af766 3339 loff_t result = 0;
6d1451bf 3340 loff_t leaf_count;
aff063e2 3341
7a2af766
CY		 3342 /*
3343 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
6afc662e 3344 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
7a2af766
CY		 3345 * space in inode.i_addr, it will be more safe to reassign
3346 * result as zero.
3347 */
3348
6d1451bf
CX		 3349 if (inode && f2fs_compressed_file(inode))
3350 leaf_count = ADDRS_PER_BLOCK(inode);
3351 else
3352 leaf_count = DEF_ADDRS_PER_BLOCK;
3353
aff063e2
JK		 3354 /* two direct node blocks */
3355 result += (leaf_count * 2);
3356
3357 /* two indirect node blocks */
3358 leaf_count *= NIDS_PER_BLOCK;
3359 result += (leaf_count * 2);
3360
3361 /* one double indirect node block */
3362 leaf_count *= NIDS_PER_BLOCK;
3363 result += leaf_count;
3364
a6a010f5
DR		 3365 /*
3366 * For compatibility with FSCRYPT_POLICY_FLAG_IV_INO_LBLK_{64,32} with
3367 * a 4K crypto data unit, we must restrict the max filesize to what can
3368 * fit within U32_MAX + 1 data units.
3369 */
3370
3371 result = min(result, (((loff_t)U32_MAX + 1) * 4096) >> F2FS_BLKSIZE_BITS);
3372
aff063e2
JK		 3373 return result;
3374}
3375
fd694733
JK		 3376static int __f2fs_commit_super(struct buffer_head *bh,
3377 struct f2fs_super_block *super)
3378{
3379 lock_buffer(bh);
3380 if (super)
3381 memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
fd694733
JK		 3382 set_buffer_dirty(bh);
3383 unlock_buffer(bh);
3384
3385 /* it's rare case, we can do fua all the time */
3adc5fcb 3386 return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
fd694733
JK		 3387}
3388
df728b0f 3389static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
fd694733 3390 struct buffer_head *bh)
9a59b62f 3391{
fd694733
JK		 3392 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3393 (bh->b_data + F2FS_SUPER_OFFSET);
df728b0f 3394 struct super_block *sb = sbi->sb;
9a59b62f
CY		 3395 u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
3396 u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
3397 u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
3398 u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
3399 u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
3400 u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
3401 u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
3402 u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
3403 u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
3404 u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
3405 u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
3406 u32 segment_count = le32_to_cpu(raw_super->segment_count);
3407 u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
fd694733
JK		 3408 u64 main_end_blkaddr = main_blkaddr +
3409 (segment_count_main << log_blocks_per_seg);
3410 u64 seg_end_blkaddr = segment0_blkaddr +
3411 (segment_count << log_blocks_per_seg);
9a59b62f
CY		 3412
3413 if (segment0_blkaddr != cp_blkaddr) {
dcbb4c10
JP		 3414 f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
3415 segment0_blkaddr, cp_blkaddr);
9a59b62f
CY		 3416 return true;
3417 }
3418
3419 if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
3420 sit_blkaddr) {
dcbb4c10
JP		 3421 f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
3422 cp_blkaddr, sit_blkaddr,
3423 segment_count_ckpt << log_blocks_per_seg);
9a59b62f
CY		 3424 return true;
3425 }
3426
3427 if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
3428 nat_blkaddr) {
dcbb4c10
JP		 3429 f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
3430 sit_blkaddr, nat_blkaddr,
3431 segment_count_sit << log_blocks_per_seg);
9a59b62f
CY		 3432 return true;
3433 }
3434
3435 if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
3436 ssa_blkaddr) {
dcbb4c10
JP		 3437 f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
3438 nat_blkaddr, ssa_blkaddr,
3439 segment_count_nat << log_blocks_per_seg);
9a59b62f
CY		 3440 return true;
3441 }
3442
3443 if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
3444 main_blkaddr) {
dcbb4c10
JP		 3445 f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
3446 ssa_blkaddr, main_blkaddr,
3447 segment_count_ssa << log_blocks_per_seg);
9a59b62f
CY		 3448 return true;
3449 }
3450
fd694733 3451 if (main_end_blkaddr > seg_end_blkaddr) {
d89f5891
WX		 3452 f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)",
3453 main_blkaddr, seg_end_blkaddr,
dcbb4c10 3454 segment_count_main << log_blocks_per_seg);
9a59b62f 3455 return true;
fd694733
JK		 3456 } else if (main_end_blkaddr < seg_end_blkaddr) {
3457 int err = 0;
3458 char *res;
3459
3460 /* fix in-memory information all the time */
3461 raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
3462 segment0_blkaddr) >> log_blocks_per_seg);
3463
68f0453d 3464 if (f2fs_readonly(sb) || f2fs_hw_is_readonly(sbi)) {
df728b0f 3465 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
fd694733
JK		 3466 res = "internally";
3467 } else {
3468 err = __f2fs_commit_super(bh, NULL);
3469 res = err ? "failed" : "done";
3470 }
d89f5891
WX		 3471 f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)",
3472 res, main_blkaddr, seg_end_blkaddr,
dcbb4c10 3473 segment_count_main << log_blocks_per_seg);
fd694733
JK		 3474 if (err)
3475 return true;
9a59b62f 3476 }
9a59b62f
CY		 3477 return false;
3478}
3479
df728b0f 3480static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
fd694733 3481 struct buffer_head *bh)
aff063e2 3482{
f99ba9ad 3483 block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main;
0cfe75c5 3484 block_t total_sections, blocks_per_seg;
fd694733
JK		 3485 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
3486 (bh->b_data + F2FS_SUPER_OFFSET);
d440c52d
JZ		 3487 size_t crc_offset = 0;
3488 __u32 crc = 0;
3489
38fb6d0e
IZ		 3490 if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
3491 f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
3492 F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
3493 return -EINVAL;
3494 }
3495
d440c52d 3496 /* Check checksum_offset and crc in superblock */
7beb01f7 3497 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
d440c52d
JZ		 3498 crc_offset = le32_to_cpu(raw_super->checksum_offset);
3499 if (crc_offset !=
3500 offsetof(struct f2fs_super_block, crc)) {
dcbb4c10
JP		 3501 f2fs_info(sbi, "Invalid SB checksum offset: %zu",
3502 crc_offset);
38fb6d0e 3503 return -EFSCORRUPTED;
d440c52d
JZ		 3504 }
3505 crc = le32_to_cpu(raw_super->crc);
3506 if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
dcbb4c10 3507 f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
38fb6d0e 3508 return -EFSCORRUPTED;
d440c52d
JZ		 3509 }
3510 }
aff063e2 3511
aff063e2 3512 /* Currently, support only 4KB block size */
e584bbe8
CY		 3513 if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) {
3514 f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u",
3515 le32_to_cpu(raw_super->log_blocksize),
3516 F2FS_BLKSIZE_BITS);
38fb6d0e 3517 return -EFSCORRUPTED;
a07ef784 3518 }
5c9b4692 3519
9a59b62f
CY		 3520 /* check log blocks per segment */
3521 if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
dcbb4c10
JP		 3522 f2fs_info(sbi, "Invalid log blocks per segment (%u)",
3523 le32_to_cpu(raw_super->log_blocks_per_seg));
38fb6d0e 3524 return -EFSCORRUPTED;
9a59b62f
CY		 3525 }
3526
d7e9a903 3527 /* Currently, support 512/1024/2048/4096/16K bytes sector size */
55cf9cb6
CY		 3528 if (le32_to_cpu(raw_super->log_sectorsize) >
3529 F2FS_MAX_LOG_SECTOR_SIZE ||
3530 le32_to_cpu(raw_super->log_sectorsize) <
3531 F2FS_MIN_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3532 f2fs_info(sbi, "Invalid log sectorsize (%u)",
3533 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3534 return -EFSCORRUPTED;
a07ef784 3535 }
55cf9cb6
CY		 3536 if (le32_to_cpu(raw_super->log_sectors_per_block) +
3537 le32_to_cpu(raw_super->log_sectorsize) !=
3538 F2FS_MAX_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 3539 f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
3540 le32_to_cpu(raw_super->log_sectors_per_block),
3541 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 3542 return -EFSCORRUPTED;
a07ef784 3543 }
9a59b62f 3544
0cfe75c5 3545 segment_count = le32_to_cpu(raw_super->segment_count);
f99ba9ad 3546 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
0cfe75c5
JK		 3547 segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3548 secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3549 total_sections = le32_to_cpu(raw_super->section_count);
3550
3551 /* blocks_per_seg should be 512, given the above check */
447286eb 3552 blocks_per_seg = BIT(le32_to_cpu(raw_super->log_blocks_per_seg));
0cfe75c5
JK		 3553
3554 if (segment_count > F2FS_MAX_SEGMENT ||
3555 segment_count < F2FS_MIN_SEGMENTS) {
dcbb4c10 3556 f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
38fb6d0e 3557 return -EFSCORRUPTED;
0cfe75c5
JK		 3558 }
3559
f99ba9ad 3560 if (total_sections > segment_count_main || total_sections < 1 ||
0cfe75c5 3561 segs_per_sec > segment_count || !segs_per_sec) {
dcbb4c10
JP		 3562 f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
3563 segment_count, total_sections, segs_per_sec);
38fb6d0e 3564 return -EFSCORRUPTED;
0cfe75c5
JK		 3565 }
3566
3a22e9ac
CY		 3567 if (segment_count_main != total_sections * segs_per_sec) {
3568 f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)",
3569 segment_count_main, total_sections, segs_per_sec);
3570 return -EFSCORRUPTED;
3571 }
3572
0cfe75c5 3573 if ((segment_count / segs_per_sec) < total_sections) {
dcbb4c10
JP		 3574 f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
3575 segment_count, segs_per_sec, total_sections);
38fb6d0e 3576 return -EFSCORRUPTED;
0cfe75c5
JK		 3577 }
3578
88960068 3579 if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
dcbb4c10
JP		 3580 f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
3581 segment_count, le64_to_cpu(raw_super->block_count));
38fb6d0e 3582 return -EFSCORRUPTED;
0cfe75c5
JK		 3583 }
3584
9f701f6c
QS		 3585 if (RDEV(0).path[0]) {
3586 block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
3587 int i = 1;
3588
3589 while (i < MAX_DEVICES && RDEV(i).path[0]) {
3590 dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
3591 i++;
3592 }
3593 if (segment_count != dev_seg_count) {
3594 f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
3595 segment_count, dev_seg_count);
3596 return -EFSCORRUPTED;
3597 }
07eb1d69
CY		 3598 } else {
3599 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) &&
3600 !bdev_is_zoned(sbi->sb->s_bdev)) {
3601 f2fs_info(sbi, "Zoned block device path is missing");
3602 return -EFSCORRUPTED;
3603 }
9f701f6c
QS		 3604 }
3605
42bf546c 3606 if (secs_per_zone > total_sections || !secs_per_zone) {
dcbb4c10
JP		 3607 f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
3608 secs_per_zone, total_sections);
38fb6d0e 3609 return -EFSCORRUPTED;
0cfe75c5
JK		 3610 }
3611 if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
3612 raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
3613 (le32_to_cpu(raw_super->extension_count) +
3614 raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
dcbb4c10
JP		 3615 f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
3616 le32_to_cpu(raw_super->extension_count),
3617 raw_super->hot_ext_count,
3618 F2FS_MAX_EXTENSION);
38fb6d0e 3619 return -EFSCORRUPTED;
0cfe75c5
JK		 3620 }
3621
65ddf656
CY		 3622 if (le32_to_cpu(raw_super->cp_payload) >=
3623 (blocks_per_seg - F2FS_CP_PACKS -
3624 NR_CURSEG_PERSIST_TYPE)) {
3625 f2fs_info(sbi, "Insane cp_payload (%u >= %u)",
dcbb4c10 3626 le32_to_cpu(raw_super->cp_payload),
65ddf656
CY		 3627 blocks_per_seg - F2FS_CP_PACKS -
3628 NR_CURSEG_PERSIST_TYPE);
38fb6d0e 3629 return -EFSCORRUPTED;
0cfe75c5
JK		 3630 }
3631
9a59b62f
CY		 3632 /* check reserved ino info */
3633 if (le32_to_cpu(raw_super->node_ino) != 1 ||
3634 le32_to_cpu(raw_super->meta_ino) != 2 ||
3635 le32_to_cpu(raw_super->root_ino) != 3) {
dcbb4c10
JP		 3636 f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
3637 le32_to_cpu(raw_super->node_ino),
3638 le32_to_cpu(raw_super->meta_ino),
3639 le32_to_cpu(raw_super->root_ino));
38fb6d0e 3640 return -EFSCORRUPTED;
9a59b62f
CY		 3641 }
3642
3643 /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
df728b0f 3644 if (sanity_check_area_boundary(sbi, bh))
38fb6d0e 3645 return -EFSCORRUPTED;
9a59b62f 3646
aff063e2
JK		 3647 return 0;
3648}
3649
4d57b86d 3650int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
aff063e2
JK		 3651{
3652 unsigned int total, fsmeta;
577e3495
JK		 3653 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
3654 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2040fce8 3655 unsigned int ovp_segments, reserved_segments;
15d3042a 3656 unsigned int main_segs, blocks_per_seg;
c77ec61c
CY		 3657 unsigned int sit_segs, nat_segs;
3658 unsigned int sit_bitmap_size, nat_bitmap_size;
3659 unsigned int log_blocks_per_seg;
9dc956b2 3660 unsigned int segment_count_main;
e494c2f9 3661 unsigned int cp_pack_start_sum, cp_payload;
7b63f72f
CY		 3662 block_t user_block_count, valid_user_blocks;
3663 block_t avail_node_count, valid_node_count;
65ddf656 3664 unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks;
042be0f8 3665 int i, j;
aff063e2
JK		 3666
3667 total = le32_to_cpu(raw_super->segment_count);
3668 fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
c77ec61c
CY		 3669 sit_segs = le32_to_cpu(raw_super->segment_count_sit);
3670 fsmeta += sit_segs;
3671 nat_segs = le32_to_cpu(raw_super->segment_count_nat);
3672 fsmeta += nat_segs;
aff063e2
JK		 3673 fsmeta += le32_to_cpu(ckpt->rsvd_segment_count);
3674 fsmeta += le32_to_cpu(raw_super->segment_count_ssa);
3675
6bacf52f 3676 if (unlikely(fsmeta >= total))
aff063e2 3677 return 1;
577e3495 3678
2040fce8
JK		 3679 ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
3680 reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count);
3681
a7d9fe3c
JK		 3682 if (!f2fs_sb_has_readonly(sbi) &&
3683 unlikely(fsmeta < F2FS_MIN_META_SEGMENTS ||
2040fce8 3684 ovp_segments == 0 || reserved_segments == 0)) {
dcbb4c10 3685 f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
2040fce8
JK		 3686 return 1;
3687 }
9dc956b2 3688 user_block_count = le64_to_cpu(ckpt->user_block_count);
a7d9fe3c
JK		 3689 segment_count_main = le32_to_cpu(raw_super->segment_count_main) +
3690 (f2fs_sb_has_readonly(sbi) ? 1 : 0);
9dc956b2
CY		 3691 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
3692 if (!user_block_count || user_block_count >=
3693 segment_count_main << log_blocks_per_seg) {
dcbb4c10
JP		 3694 f2fs_err(sbi, "Wrong user_block_count: %u",
3695 user_block_count);
9dc956b2
CY		 3696 return 1;
3697 }
3698
7b63f72f
CY		 3699 valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
3700 if (valid_user_blocks > user_block_count) {
dcbb4c10
JP		 3701 f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
3702 valid_user_blocks, user_block_count);
7b63f72f
CY		 3703 return 1;
3704 }
3705
3706 valid_node_count = le32_to_cpu(ckpt->valid_node_count);
27cae0bc 3707 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
7b63f72f 3708 if (valid_node_count > avail_node_count) {
dcbb4c10
JP		 3709 f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
3710 valid_node_count, avail_node_count);
7b63f72f
CY		 3711 return 1;
3712 }
3713
15d3042a
JQ		 3714 main_segs = le32_to_cpu(raw_super->segment_count_main);
3715 blocks_per_seg = sbi->blocks_per_seg;
3716
3717 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
3718 if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
3719 le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
3720 return 1;
a7d9fe3c
JK		 3721
3722 if (f2fs_sb_has_readonly(sbi))
3723 goto check_data;
3724
042be0f8
CY		 3725 for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
3726 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3727 le32_to_cpu(ckpt->cur_node_segno[j])) {
dcbb4c10
JP		 3728 f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
3729 i, j,
3730 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3731 return 1;
3732 }
3733 }
15d3042a 3734 }
a7d9fe3c 3735check_data:
15d3042a
JQ		 3736 for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
3737 if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
3738 le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
3739 return 1;
a7d9fe3c
JK		 3740
3741 if (f2fs_sb_has_readonly(sbi))
3742 goto skip_cross;
3743
042be0f8
CY		 3744 for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
3745 if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
3746 le32_to_cpu(ckpt->cur_data_segno[j])) {
dcbb4c10
JP		 3747 f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
3748 i, j,
3749 le32_to_cpu(ckpt->cur_data_segno[i]));
042be0f8
CY		 3750 return 1;
3751 }
3752 }
3753 }
3754 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
1166c1f2 3755 for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
042be0f8
CY		 3756 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
3757 le32_to_cpu(ckpt->cur_data_segno[j])) {
1166c1f2 3758 f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
dcbb4c10
JP		 3759 i, j,
3760 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 3761 return 1;
3762 }
3763 }
15d3042a 3764 }
a7d9fe3c 3765skip_cross:
c77ec61c
CY		 3766 sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
3767 nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
c77ec61c
CY		 3768
3769 if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
3770 nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
dcbb4c10
JP		 3771 f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
3772 sit_bitmap_size, nat_bitmap_size);
c77ec61c
CY		 3773 return 1;
3774 }
e494c2f9
CY		 3775
3776 cp_pack_start_sum = __start_sum_addr(sbi);
3777 cp_payload = __cp_payload(sbi);
3778 if (cp_pack_start_sum < cp_payload + 1 ||
3779 cp_pack_start_sum > blocks_per_seg - 1 -
d0b9e42a 3780 NR_CURSEG_PERSIST_TYPE) {
dcbb4c10
JP		 3781 f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
3782 cp_pack_start_sum);
e494c2f9
CY		 3783 return 1;
3784 }
c77ec61c 3785
5dae2d39
CY		 3786 if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
3787 le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
2d008835
CY		 3788 f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
3789 "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
3790 "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
dcbb4c10 3791 le32_to_cpu(ckpt->checksum_offset));
5dae2d39
CY		 3792 return 1;
3793 }
3794
65ddf656
CY		 3795 nat_blocks = nat_segs << log_blocks_per_seg;
3796 nat_bits_bytes = nat_blocks / BITS_PER_BYTE;
3797 nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
3798 if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) &&
3799 (cp_payload + F2FS_CP_PACKS +
3800 NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
3801 f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
3802 cp_payload, nat_bits_blocks);
ca98d721 3803 return 1;
65ddf656
CY		 3804 }
3805
1e968fdf 3806 if (unlikely(f2fs_cp_error(sbi))) {
dcbb4c10 3807 f2fs_err(sbi, "A bug case: need to run fsck");
577e3495
JK		 3808 return 1;
3809 }
aff063e2
JK		 3810 return 0;
3811}
3812
3813static void init_sb_info(struct f2fs_sb_info *sbi)
3814{
3815 struct f2fs_super_block *raw_super = sbi->raw_super;
089842de 3816 int i;
aff063e2
JK		 3817
3818 sbi->log_sectors_per_block =
3819 le32_to_cpu(raw_super->log_sectors_per_block);
3820 sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize);
447286eb 3821 sbi->blocksize = BIT(sbi->log_blocksize);
aff063e2 3822 sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
447286eb 3823 sbi->blocks_per_seg = BIT(sbi->log_blocks_per_seg);
aff063e2
JK		 3824 sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
3825 sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
3826 sbi->total_sections = le32_to_cpu(raw_super->section_count);
3827 sbi->total_node_count =
3828 (le32_to_cpu(raw_super->segment_count_nat) / 2)
3829 * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK;
b9ec1094
YL		 3830 F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
3831 F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
3832 F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
5ec4e49f 3833 sbi->cur_victim_sec = NULL_SECNO;
c86868bb 3834 sbi->gc_mode = GC_NORMAL;
e3080b01
CY		 3835 sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
3836 sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
b1c57c1c 3837 sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
e3080b01 3838 sbi->migration_granularity = sbi->segs_per_sec;
0f6b56ec 3839 sbi->seq_file_ra_mul = MIN_RA_MUL;
6691d940
DJ		 3840 sbi->max_fragment_chunk = DEF_FRAGMENT_SIZE;
3841 sbi->max_fragment_hole = DEF_FRAGMENT_SIZE;
e5a0db6a 3842 spin_lock_init(&sbi->gc_remaining_trials_lock);
f8e2f32b 3843 atomic64_set(&sbi->current_atomic_write, 0);
aff063e2 3844
ab9fa662 3845 sbi->dir_level = DEF_DIR_LEVEL;
6beceb54 3846 sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
d0239e1b 3847 sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
a7d10cf3
ST		 3848 sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
3849 sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
4354994f 3850 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
03f2c02d
JK		 3851 sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
3852 DEF_UMOUNT_DISCARD_TIMEOUT;
caf0047e 3853 clear_sbi_flag(sbi, SBI_NEED_FSCK);
2658e50d 3854
35782b23
JK		 3855 for (i = 0; i < NR_COUNT_TYPE; i++)
3856 atomic_set(&sbi->nr_pages[i], 0);
3857
c29fd0c0
CY		 3858 for (i = 0; i < META; i++)
3859 atomic_set(&sbi->wb_sync_req[i], 0);
687de7f1 3860
2658e50d
JK		 3861 INIT_LIST_HEAD(&sbi->s_list);
3862 mutex_init(&sbi->umount_mutex);
e4544b63 3863 init_f2fs_rwsem(&sbi->io_order_lock);
aaec2b1d 3864 spin_lock_init(&sbi->cp_lock);
1228b482
CY		 3865
3866 sbi->dirty_device = 0;
3867 spin_lock_init(&sbi->dev_lock);
d0d3f1b3 3868
e4544b63
TM		 3869 init_f2fs_rwsem(&sbi->sb_lock);
3870 init_f2fs_rwsem(&sbi->pin_sem);
aff063e2
JK		 3871}
3872
523be8a6
JK		 3873static int init_percpu_info(struct f2fs_sb_info *sbi)
3874{
35782b23 3875 int err;
41382ec4 3876
513c5f37
JK		 3877 err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
3878 if (err)
3879 return err;
3880
47c8ebcc
JK		 3881 err = percpu_counter_init(&sbi->rf_node_block_count, 0, GFP_KERNEL);
3882 if (err)
3883 goto err_valid_block;
3884
4a70e255 3885 err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
41382ec4 3886 GFP_KERNEL);
4a70e255 3887 if (err)
47c8ebcc
JK		 3888 goto err_node_block;
3889 return 0;
4a70e255 3890
47c8ebcc
JK		 3891err_node_block:
3892 percpu_counter_destroy(&sbi->rf_node_block_count);
3893err_valid_block:
3894 percpu_counter_destroy(&sbi->alloc_valid_block_count);
4a70e255 3895 return err;
523be8a6
JK		 3896}
3897
178053e2 3898#ifdef CONFIG_BLK_DEV_ZONED
de881df9
AR		 3899
3900struct f2fs_report_zones_args {
b771aadc 3901 struct f2fs_sb_info *sbi;
de881df9 3902 struct f2fs_dev_info *dev;
de881df9
AR		 3903};
3904
d4100351 3905static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx,
de881df9 3906 void *data)
d4100351 3907{
de881df9 3908 struct f2fs_report_zones_args *rz_args = data;
b771aadc
JK		 3909 block_t unusable_blocks = (zone->len - zone->capacity) >>
3910 F2FS_LOG_SECTORS_PER_BLOCK;
de881df9
AR		 3911
3912 if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
3913 return 0;
3914
3915 set_bit(idx, rz_args->dev->blkz_seq);
b771aadc
JK		 3916 if (!rz_args->sbi->unusable_blocks_per_sec) {
3917 rz_args->sbi->unusable_blocks_per_sec = unusable_blocks;
3918 return 0;
3919 }
3920 if (rz_args->sbi->unusable_blocks_per_sec != unusable_blocks) {
3921 f2fs_err(rz_args->sbi, "F2FS supports single zone capacity\n");
3922 return -EINVAL;
3923 }
d4100351
CH		 3924 return 0;
3925}
3926
3c62be17 3927static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
178053e2 3928{
3c62be17 3929 struct block_device *bdev = FDEV(devi).bdev;
a782483c 3930 sector_t nr_sectors = bdev_nr_sectors(bdev);
de881df9 3931 struct f2fs_report_zones_args rep_zone_arg;
d46db459 3932 u64 zone_sectors;
d4100351 3933 int ret;
178053e2 3934
7beb01f7 3935 if (!f2fs_sb_has_blkzoned(sbi))
178053e2
DLM		 3936 return 0;
3937
d46db459 3938 zone_sectors = bdev_zone_sectors(bdev);
7f262f73
LC		 3939 if (!is_power_of_2(zone_sectors)) {
3940 f2fs_err(sbi, "F2FS does not support non power of 2 zone sizes\n");
3941 return -EINVAL;
3942 }
d46db459 3943
3c62be17 3944 if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
d46db459 3945 SECTOR_TO_BLOCK(zone_sectors))
3c62be17 3946 return -EINVAL;
d46db459 3947 sbi->blocks_per_blkz = SECTOR_TO_BLOCK(zone_sectors);
2e2c6e9b
JK		 3948 FDEV(devi).nr_blkz = div_u64(SECTOR_TO_BLOCK(nr_sectors),
3949 sbi->blocks_per_blkz);
d46db459 3950 if (nr_sectors & (zone_sectors - 1))
3c62be17 3951 FDEV(devi).nr_blkz++;
178053e2 3952
0b6d4ca0 3953 FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
95175daf
DLM		 3954 BITS_TO_LONGS(FDEV(devi).nr_blkz)
3955 * sizeof(unsigned long),
3956 GFP_KERNEL);
3957 if (!FDEV(devi).blkz_seq)
178053e2
DLM		 3958 return -ENOMEM;
3959
b771aadc 3960 rep_zone_arg.sbi = sbi;
de881df9 3961 rep_zone_arg.dev = &FDEV(devi);
de881df9 3962
d4100351 3963 ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb,
de881df9 3964 &rep_zone_arg);
d4100351
CH		 3965 if (ret < 0)
3966 return ret;
d4100351 3967 return 0;
178053e2
DLM		 3968}
3969#endif
3970
9076a75f
GZ		 3971/*
3972 * Read f2fs raw super block.
2b39e907
SL		 3973 * Because we have two copies of super block, so read both of them
3974 * to get the first valid one. If any one of them is broken, we pass
3975 * them recovery flag back to the caller.
9076a75f 3976 */
df728b0f 3977static int read_raw_super_block(struct f2fs_sb_info *sbi,
9076a75f 3978 struct f2fs_super_block **raw_super,
e8240f65 3979 int *valid_super_block, int *recovery)
14d7e9de 3980{
df728b0f 3981 struct super_block *sb = sbi->sb;
2b39e907 3982 int block;
e8240f65 3983 struct buffer_head *bh;
fd694733 3984 struct f2fs_super_block *super;
da554e48 3985 int err = 0;
14d7e9de 3986
b39f0de2
YH		 3987 super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL);
3988 if (!super)
3989 return -ENOMEM;
2b39e907
SL		 3990
3991 for (block = 0; block < 2; block++) {
3992 bh = sb_bread(sb, block);
3993 if (!bh) {
dcbb4c10
JP		 3994 f2fs_err(sbi, "Unable to read %dth superblock",
3995 block + 1);
2b39e907 3996 err = -EIO;
ed352042 3997 *recovery = 1;
2b39e907
SL		 3998 continue;
3999 }
14d7e9de 4000
2b39e907 4001 /* sanity checking of raw super */
38fb6d0e
IZ		 4002 err = sanity_check_raw_super(sbi, bh);
4003 if (err) {
dcbb4c10
JP		 4004 f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
4005 block + 1);
2b39e907 4006 brelse(bh);
ed352042 4007 *recovery = 1;
2b39e907
SL		 4008 continue;
4009 }
14d7e9de 4010
2b39e907 4011 if (!*raw_super) {
fd694733
JK		 4012 memcpy(super, bh->b_data + F2FS_SUPER_OFFSET,
4013 sizeof(*super));
2b39e907
SL		 4014 *valid_super_block = block;
4015 *raw_super = super;
4016 }
4017 brelse(bh);
da554e48 4018 }
4019
da554e48 4020 /* No valid superblock */
2b39e907 4021 if (!*raw_super)
742532d1 4022 kfree(super);
2b39e907
SL		 4023 else
4024 err = 0;
da554e48 4025
2b39e907 4026 return err;
14d7e9de 4027}
4028
fd694733 4029int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
26d815ad 4030{
5d909cdb 4031 struct buffer_head *bh;
d440c52d 4032 __u32 crc = 0;
26d815ad
JK		 4033 int err;
4034
df728b0f 4035 if ((recover && f2fs_readonly(sbi->sb)) ||
68f0453d 4036 f2fs_hw_is_readonly(sbi)) {
df728b0f 4037 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
f2353d7b 4038 return -EROFS;
df728b0f 4039 }
f2353d7b 4040
d440c52d 4041 /* we should update superblock crc here */
7beb01f7 4042 if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
d440c52d
JZ		 4043 crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
4044 offsetof(struct f2fs_super_block, crc));
4045 F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
4046 }
4047
fd694733 4048 /* write back-up superblock first */
0964fc1a 4049 bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
5d909cdb
JK		 4050 if (!bh)
4051 return -EIO;
fd694733 4052 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
5d909cdb 4053 brelse(bh);
c5bda1c8
CY		 4054
4055 /* if we are in recovery path, skip writing valid superblock */
4056 if (recover || err)
5d909cdb 4057 return err;
26d815ad
JK		 4058
4059 /* write current valid superblock */
0964fc1a 4060 bh = sb_bread(sbi->sb, sbi->valid_super_block);
fd694733
JK		 4061 if (!bh)
4062 return -EIO;
4063 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
4064 brelse(bh);
4065 return err;
26d815ad
JK		 4066}
4067
b62e71be
CY		 4068static void save_stop_reason(struct f2fs_sb_info *sbi, unsigned char reason)
4069{
4070 unsigned long flags;
4071
4072 spin_lock_irqsave(&sbi->error_lock, flags);
4073 if (sbi->stop_reason[reason] < GENMASK(BITS_PER_BYTE - 1, 0))
4074 sbi->stop_reason[reason]++;
4075 spin_unlock_irqrestore(&sbi->error_lock, flags);
4076}
4077
4078static void f2fs_record_stop_reason(struct f2fs_sb_info *sbi)
a9cfee0e
CY		 4079{
4080 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
b62e71be 4081 unsigned long flags;
a9cfee0e
CY		 4082 int err;
4083
a9cfee0e
CY		 4084 f2fs_down_write(&sbi->sb_lock);
4085
b62e71be 4086 spin_lock_irqsave(&sbi->error_lock, flags);
901c12d1
CY		 4087 if (sbi->error_dirty) {
4088 memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors,
4089 MAX_F2FS_ERRORS);
4090 sbi->error_dirty = false;
4091 }
b62e71be
CY		 4092 memcpy(raw_super->s_stop_reason, sbi->stop_reason, MAX_STOP_REASON);
4093 spin_unlock_irqrestore(&sbi->error_lock, flags);
a9cfee0e
CY		 4094
4095 err = f2fs_commit_super(sbi, false);
b62e71be 4096
95fa90c9 4097 f2fs_up_write(&sbi->sb_lock);
b62e71be 4098 if (err)
0b8eb814
CY		 4099 f2fs_err_ratelimited(sbi,
4100 "f2fs_commit_super fails to record stop_reason, err:%d",
4101 err);
95fa90c9
CY		 4102}
4103
1aa161e4 4104void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag)
95fa90c9 4105{
b62e71be
CY		 4106 unsigned long flags;
4107
4108 spin_lock_irqsave(&sbi->error_lock, flags);
95fa90c9
CY		 4109 if (!test_bit(flag, (unsigned long *)sbi->errors)) {
4110 set_bit(flag, (unsigned long *)sbi->errors);
4111 sbi->error_dirty = true;
4112 }
b62e71be 4113 spin_unlock_irqrestore(&sbi->error_lock, flags);
95fa90c9
CY		 4114}
4115
4116static bool f2fs_update_errors(struct f2fs_sb_info *sbi)
4117{
b62e71be 4118 unsigned long flags;
95fa90c9
CY		 4119 bool need_update = false;
4120
b62e71be 4121 spin_lock_irqsave(&sbi->error_lock, flags);
95fa90c9
CY		 4122 if (sbi->error_dirty) {
4123 memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors,
4124 MAX_F2FS_ERRORS);
4125 sbi->error_dirty = false;
4126 need_update = true;
4127 }
b62e71be 4128 spin_unlock_irqrestore(&sbi->error_lock, flags);
95fa90c9
CY		 4129
4130 return need_update;
4131}
a9cfee0e 4132
901c12d1 4133static void f2fs_record_errors(struct f2fs_sb_info *sbi, unsigned char error)
95fa90c9
CY		 4134{
4135 int err;
4136
95fa90c9
CY		 4137 f2fs_down_write(&sbi->sb_lock);
4138
4139 if (!f2fs_update_errors(sbi))
4140 goto out_unlock;
4141
4142 err = f2fs_commit_super(sbi, false);
4143 if (err)
0b8eb814
CY		 4144 f2fs_err_ratelimited(sbi,
4145 "f2fs_commit_super fails to record errors:%u, err:%d",
4146 error, err);
95fa90c9 4147out_unlock:
a9cfee0e
CY		 4148 f2fs_up_write(&sbi->sb_lock);
4149}
4150
901c12d1
CY		 4151void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error)
4152{
4153 f2fs_save_errors(sbi, error);
4154 f2fs_record_errors(sbi, error);
4155}
4156
4157void f2fs_handle_error_async(struct f2fs_sb_info *sbi, unsigned char error)
4158{
4159 f2fs_save_errors(sbi, error);
4160
4161 if (!sbi->error_dirty)
4162 return;
4163 if (!test_bit(error, (unsigned long *)sbi->errors))
4164 return;
4165 schedule_work(&sbi->s_error_work);
4166}
4167
b62e71be
CY		 4168static bool system_going_down(void)
4169{
4170 return system_state == SYSTEM_HALT || system_state == SYSTEM_POWER_OFF
4171 || system_state == SYSTEM_RESTART;
4172}
4173
4174void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason,
4175 bool irq_context)
4176{
4177 struct super_block *sb = sbi->sb;
4178 bool shutdown = reason == STOP_CP_REASON_SHUTDOWN;
4179 bool continue_fs = !shutdown &&
4180 F2FS_OPTION(sbi).errors == MOUNT_ERRORS_CONTINUE;
4181
4182 set_ckpt_flags(sbi, CP_ERROR_FLAG);
4183
4184 if (!f2fs_hw_is_readonly(sbi)) {
4185 save_stop_reason(sbi, reason);
4186
4187 if (irq_context && !shutdown)
4188 schedule_work(&sbi->s_error_work);
4189 else
4190 f2fs_record_stop_reason(sbi);
4191 }
4192
4193 /*
4194 * We force ERRORS_RO behavior when system is rebooting. Otherwise we
4195 * could panic during 'reboot -f' as the underlying device got already
4196 * disabled.
4197 */
4198 if (F2FS_OPTION(sbi).errors == MOUNT_ERRORS_PANIC &&
4199 !shutdown && !system_going_down() &&
4200 !is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN))
4201 panic("F2FS-fs (device %s): panic forced after error\n",
4202 sb->s_id);
4203
4204 if (shutdown)
4205 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
4206
4207 /* continue filesystem operators if errors=continue */
4208 if (continue_fs || f2fs_readonly(sb))
4209 return;
4210
4211 f2fs_warn(sbi, "Remounting filesystem read-only");
4212 /*
4213 * Make sure updated value of ->s_mount_flags will be visible before
4214 * ->s_flags update
4215 */
4216 smp_wmb();
4217 sb->s_flags |= SB_RDONLY;
4218}
4219
4220static void f2fs_record_error_work(struct work_struct *work)
4221{
4222 struct f2fs_sb_info *sbi = container_of(work,
4223 struct f2fs_sb_info, s_error_work);
4224
4225 f2fs_record_stop_reason(sbi);
4226}
4227
3c62be17
JK		 4228static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
4229{
4230 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
7bb3a371 4231 unsigned int max_devices = MAX_DEVICES;
71f2c820 4232 unsigned int logical_blksize;
05bdb996 4233 blk_mode_t mode = sb_open_mode(sbi->sb->s_flags);
3c62be17
JK		 4234 int i;
4235
7bb3a371
MS		 4236 /* Initialize single device information */
4237 if (!RDEV(0).path[0]) {
4238 if (!bdev_is_zoned(sbi->sb->s_bdev))
3c62be17 4239 return 0;
7bb3a371
MS		 4240 max_devices = 1;
4241 }
3c62be17 4242
7bb3a371
MS		 4243 /*
4244 * Initialize multiple devices information, or single
4245 * zoned block device information.
4246 */
026f0507
KC		 4247 sbi->devs = f2fs_kzalloc(sbi,
4248 array_size(max_devices,
4249 sizeof(struct f2fs_dev_info)),
4250 GFP_KERNEL);
7bb3a371
MS		 4251 if (!sbi->devs)
4252 return -ENOMEM;
3c62be17 4253
71f2c820
CY		 4254 logical_blksize = bdev_logical_block_size(sbi->sb->s_bdev);
4255 sbi->aligned_blksize = true;
4256
7bb3a371 4257 for (i = 0; i < max_devices; i++) {
51bf8d3c 4258 if (i == 0)
2b107946 4259 FDEV(0).bdev_handle = sbi->sb->s_bdev_handle;
51bf8d3c 4260 else if (!RDEV(i).path[0])
7bb3a371
MS		 4261 break;
4262
51bf8d3c 4263 if (max_devices > 1) {
7bb3a371
MS		 4264 /* Multi-device mount */
4265 memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN);
4266 FDEV(i).total_segments =
4267 le32_to_cpu(RDEV(i).total_segments);
4268 if (i == 0) {
4269 FDEV(i).start_blk = 0;
4270 FDEV(i).end_blk = FDEV(i).start_blk +
4271 (FDEV(i).total_segments <<
4272 sbi->log_blocks_per_seg) - 1 +
4273 le32_to_cpu(raw_super->segment0_blkaddr);
4274 } else {
4275 FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
4276 FDEV(i).end_blk = FDEV(i).start_blk +
4277 (FDEV(i).total_segments <<
4278 sbi->log_blocks_per_seg) - 1;
2b107946
JK		 4279 FDEV(i).bdev_handle = bdev_open_by_path(
4280 FDEV(i).path, mode, sbi->sb, NULL);
7bb3a371 4281 }
7bb3a371 4282 }
2b107946
JK		 4283 if (IS_ERR(FDEV(i).bdev_handle))
4284 return PTR_ERR(FDEV(i).bdev_handle);
3c62be17 4285
2b107946 4286 FDEV(i).bdev = FDEV(i).bdev_handle->bdev;
3c62be17
JK		 4287 /* to release errored devices */
4288 sbi->s_ndevs = i + 1;
4289
71f2c820
CY		 4290 if (logical_blksize != bdev_logical_block_size(FDEV(i).bdev))
4291 sbi->aligned_blksize = false;
4292
3c62be17 4293#ifdef CONFIG_BLK_DEV_ZONED
7437bb73
CH		 4294 if (bdev_is_zoned(FDEV(i).bdev)) {
4295 if (!f2fs_sb_has_blkzoned(sbi)) {
4296 f2fs_err(sbi, "Zoned block device feature not enabled");
4297 return -EINVAL;
4298 }
3c62be17 4299 if (init_blkz_info(sbi, i)) {
dcbb4c10 4300 f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
3c62be17
JK		 4301 return -EINVAL;
4302 }
7bb3a371
MS		 4303 if (max_devices == 1)
4304 break;
7437bb73 4305 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: Host-managed)",
dcbb4c10
JP		 4306 i, FDEV(i).path,
4307 FDEV(i).total_segments,
7437bb73 4308 FDEV(i).start_blk, FDEV(i).end_blk);
3c62be17
JK		 4309 continue;
4310 }
4311#endif
dcbb4c10
JP		 4312 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
4313 i, FDEV(i).path,
4314 FDEV(i).total_segments,
4315 FDEV(i).start_blk, FDEV(i).end_blk);
4316 }
4317 f2fs_info(sbi,
447286eb 4318 "IO Block Size: %8ld KB", F2FS_IO_SIZE_KB(sbi));
3c62be17
JK		 4319 return 0;
4320}
4321
5aba5430
DR		 4322static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
4323{
5298d4bf 4324#if IS_ENABLED(CONFIG_UNICODE)
eca4873e 4325 if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) {
5aba5430
DR		 4326 const struct f2fs_sb_encodings *encoding_info;
4327 struct unicode_map *encoding;
4328 __u16 encoding_flags;
4329
86e80575
CH		 4330 encoding_info = f2fs_sb_read_encoding(sbi->raw_super);
4331 if (!encoding_info) {
5aba5430
DR		 4332 f2fs_err(sbi,
4333 "Encoding requested by superblock is unknown");
4334 return -EINVAL;
4335 }
4336
86e80575 4337 encoding_flags = le16_to_cpu(sbi->raw_super->s_encoding_flags);
5aba5430
DR		 4338 encoding = utf8_load(encoding_info->version);
4339 if (IS_ERR(encoding)) {
4340 f2fs_err(sbi,
49bd03cc 4341 "can't mount with superblock charset: %s-%u.%u.%u "
5aba5430 4342 "not supported by the kernel. flags: 0x%x.",
49bd03cc
CH		 4343 encoding_info->name,
4344 unicode_major(encoding_info->version),
4345 unicode_minor(encoding_info->version),
4346 unicode_rev(encoding_info->version),
5aba5430
DR		 4347 encoding_flags);
4348 return PTR_ERR(encoding);
4349 }
4350 f2fs_info(sbi, "Using encoding defined by superblock: "
49bd03cc
CH		 4351 "%s-%u.%u.%u with flags 0x%hx", encoding_info->name,
4352 unicode_major(encoding_info->version),
4353 unicode_minor(encoding_info->version),
4354 unicode_rev(encoding_info->version),
4355 encoding_flags);
5aba5430 4356
eca4873e
DR		 4357 sbi->sb->s_encoding = encoding;
4358 sbi->sb->s_encoding_flags = encoding_flags;
5aba5430
DR		 4359 }
4360#else
4361 if (f2fs_sb_has_casefold(sbi)) {
4362 f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
4363 return -EINVAL;
4364 }
4365#endif
4366 return 0;
4367}
4368
84b89e5d
JK		 4369static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
4370{
84b89e5d 4371 /* adjust parameters according to the volume size */
777cd95b 4372 if (MAIN_SEGS(sbi) <= SMALL_VOLUME_SEGMENTS) {
4f993264 4373 if (f2fs_block_unit_discard(sbi))
1cd2e6d5
YL		 4374 SM_I(sbi)->dcc_info->discard_granularity =
4375 MIN_DISCARD_GRANULARITY;
c5bf8348
YL		 4376 if (!f2fs_lfs_mode(sbi))
4377 SM_I(sbi)->ipu_policy = BIT(F2FS_IPU_FORCE) |
4378 BIT(F2FS_IPU_HONOR_OPU_WRITE);
84b89e5d 4379 }
4cac90d5 4380
66aee5aa 4381 sbi->readdir_ra = true;
84b89e5d
JK		 4382}
4383
aff063e2
JK		 4384static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
4385{
4386 struct f2fs_sb_info *sbi;
da554e48 4387 struct f2fs_super_block *raw_super;
aff063e2 4388 struct inode *root;
99e3e858 4389 int err;
aa2c8c43 4390 bool skip_recovery = false, need_fsck = false;
dabc4a5c 4391 char *options = NULL;
e8240f65 4392 int recovery, i, valid_super_block;
8f1dbbbb 4393 struct curseg_info *seg_i;
aa2c8c43 4394 int retry_cnt = 1;
e1bb7d3d
CY		 4395#ifdef CONFIG_QUOTA
4396 bool quota_enabled = false;
4397#endif
aff063e2 4398
ed2e621a 4399try_onemore:
da554e48 4400 err = -EINVAL;
4401 raw_super = NULL;
e8240f65 4402 valid_super_block = -1;
da554e48 4403 recovery = 0;
4404
aff063e2
JK		 4405 /* allocate memory for f2fs-specific super block info */
4406 sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
4407 if (!sbi)
4408 return -ENOMEM;
4409
df728b0f
JK		 4410 sbi->sb = sb;
4411
92b4cf5b
TH		 4412 /* initialize locks within allocated memory */
4413 init_f2fs_rwsem(&sbi->gc_lock);
4414 mutex_init(&sbi->writepages);
4415 init_f2fs_rwsem(&sbi->cp_global_sem);
4416 init_f2fs_rwsem(&sbi->node_write);
4417 init_f2fs_rwsem(&sbi->node_change);
4418 spin_lock_init(&sbi->stat_lock);
4419 init_f2fs_rwsem(&sbi->cp_rwsem);
4420 init_f2fs_rwsem(&sbi->quota_sem);
4421 init_waitqueue_head(&sbi->cp_wait);
4422 spin_lock_init(&sbi->error_lock);
4423
4424 for (i = 0; i < NR_INODE_TYPE; i++) {
4425 INIT_LIST_HEAD(&sbi->inode_list[i]);
4426 spin_lock_init(&sbi->inode_lock[i]);
4427 }
4428 mutex_init(&sbi->flush_lock);
4429
43b6573b
KM		 4430 /* Load the checksum driver */
4431 sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
4432 if (IS_ERR(sbi->s_chksum_driver)) {
dcbb4c10 4433 f2fs_err(sbi, "Cannot load crc32 driver.");
43b6573b
KM		 4434 err = PTR_ERR(sbi->s_chksum_driver);
4435 sbi->s_chksum_driver = NULL;
4436 goto free_sbi;
4437 }
4438
ff9234ad 4439 /* set a block size */
6bacf52f 4440 if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
dcbb4c10 4441 f2fs_err(sbi, "unable to set blocksize");
aff063e2 4442 goto free_sbi;
a07ef784 4443 }
aff063e2 4444
df728b0f 4445 err = read_raw_super_block(sbi, &raw_super, &valid_super_block,
e8240f65 4446 &recovery);
9076a75f
GZ		 4447 if (err)
4448 goto free_sbi;
4449
5fb08372 4450 sb->s_fs_info = sbi;
52763a4b
JK		 4451 sbi->raw_super = raw_super;
4452
b62e71be 4453 INIT_WORK(&sbi->s_error_work, f2fs_record_error_work);
92b4cf5b 4454 memcpy(sbi->errors, raw_super->s_errors, MAX_F2FS_ERRORS);
b62e71be 4455 memcpy(sbi->stop_reason, raw_super->s_stop_reason, MAX_STOP_REASON);
92b4cf5b 4456
704956ec 4457 /* precompute checksum seed for metadata */
7beb01f7 4458 if (f2fs_sb_has_inode_chksum(sbi))
704956ec
CY		 4459 sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
4460 sizeof(raw_super->uuid));
4461
458c15df 4462 default_options(sbi, false);
aff063e2 4463 /* parse mount options */
dabc4a5c
JK		 4464 options = kstrdup((const char *)data, GFP_KERNEL);
4465 if (data && !options) {
4466 err = -ENOMEM;
aff063e2 4467 goto free_sb_buf;
dabc4a5c
JK		 4468 }
4469
ed318a6c 4470 err = parse_options(sb, options, false);
dabc4a5c
JK		 4471 if (err)
4472 goto free_options;
aff063e2 4473
6d1451bf 4474 sb->s_maxbytes = max_file_blocks(NULL) <<
e0afc4d6 4475 le32_to_cpu(raw_super->log_blocksize);
aff063e2 4476 sb->s_max_links = F2FS_LINK_MAX;
aff063e2 4477
5aba5430
DR		 4478 err = f2fs_setup_casefold(sbi);
4479 if (err)
4480 goto free_options;
4481
0abd675e
CY		 4482#ifdef CONFIG_QUOTA
4483 sb->dq_op = &f2fs_quota_operations;
bc88ac96 4484 sb->s_qcop = &f2fs_quotactl_ops;
5c57132e 4485 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
292c196a 4486
7beb01f7 4487 if (f2fs_sb_has_quota_ino(sbi)) {
292c196a
CY		 4488 for (i = 0; i < MAXQUOTAS; i++) {
4489 if (f2fs_qf_ino(sbi->sb, i))
4490 sbi->nquota_files++;
4491 }
4492 }
0abd675e
CY		 4493#endif
4494
aff063e2 4495 sb->s_op = &f2fs_sops;
643fa961 4496#ifdef CONFIG_FS_ENCRYPTION
0b81d077 4497 sb->s_cop = &f2fs_cryptops;
95ae251f
EB		 4498#endif
4499#ifdef CONFIG_FS_VERITY
4500 sb->s_vop = &f2fs_verityops;
ffcc4182 4501#endif
aff063e2
JK		 4502 sb->s_xattr = f2fs_xattr_handlers;
4503 sb->s_export_op = &f2fs_export_ops;
4504 sb->s_magic = F2FS_SUPER_MAGIC;
aff063e2 4505 sb->s_time_gran = 1;
1751e8a6
LT		 4506 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
4507 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
85787090 4508 memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid));
578c6478 4509 sb->s_iflags |= SB_I_CGROUPWB;
aff063e2
JK		 4510
4511 /* init f2fs-specific super block info */
e8240f65 4512 sbi->valid_super_block = valid_super_block;
315df839
JK		 4513
4514 /* disallow all the data/node/meta page writes */
4515 set_sbi_flag(sbi, SBI_POR_DOING);
971767ca 4516
908ea654
YY		 4517 err = f2fs_init_write_merge_io(sbi);
4518 if (err)
4519 goto free_bio_info;
971767ca 4520
aff063e2
JK		 4521 init_sb_info(sbi);
4522
52118743 4523 err = f2fs_init_iostat(sbi);
523be8a6 4524 if (err)
d7997e63 4525 goto free_bio_info;
523be8a6 4526
523be8a6
JK		 4527 err = init_percpu_info(sbi);
4528 if (err)
a4b68176 4529 goto free_iostat;
523be8a6 4530
c72db71e 4531 if (F2FS_IO_ALIGNED(sbi)) {
0a595eba 4532 sbi->write_io_dummy =
a3ebfe4f 4533 mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
1727f317
CY		 4534 if (!sbi->write_io_dummy) {
4535 err = -ENOMEM;
d7997e63 4536 goto free_percpu;
1727f317 4537 }
0a595eba
JK		 4538 }
4539
a999150f
CY		 4540 /* init per sbi slab cache */
4541 err = f2fs_init_xattr_caches(sbi);
4542 if (err)
4543 goto free_io_dummy;
31083031
CY		 4544 err = f2fs_init_page_array_cache(sbi);
4545 if (err)
4546 goto free_xattr_cache;
a999150f 4547
aff063e2
JK		 4548 /* get an inode for meta space */
4549 sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
4550 if (IS_ERR(sbi->meta_inode)) {
dcbb4c10 4551 f2fs_err(sbi, "Failed to read F2FS meta data inode");
aff063e2 4552 err = PTR_ERR(sbi->meta_inode);
31083031 4553 goto free_page_array_cache;
aff063e2
JK		 4554 }
4555
4d57b86d 4556 err = f2fs_get_valid_checkpoint(sbi);
a07ef784 4557 if (err) {
dcbb4c10 4558 f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
aff063e2 4559 goto free_meta_inode;
a07ef784 4560 }
aff063e2 4561
af033b2a
CY		 4562 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
4563 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
db610a64
JK		 4564 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
4565 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
4566 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
4567 }
af033b2a 4568
04f0b2ea
QS		 4569 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
4570 set_sbi_flag(sbi, SBI_NEED_FSCK);
4571
3c62be17
JK		 4572 /* Initialize device list */
4573 err = f2fs_scan_devices(sbi);
4574 if (err) {
dcbb4c10 4575 f2fs_err(sbi, "Failed to find devices");
3c62be17
JK		 4576 goto free_devices;
4577 }
4578
4c8ff709
CY		 4579 err = f2fs_init_post_read_wq(sbi);
4580 if (err) {
4581 f2fs_err(sbi, "Failed to initialize post read workqueue");
4582 goto free_devices;
4583 }
4584
aff063e2
JK		 4585 sbi->total_valid_node_count =
4586 le32_to_cpu(sbi->ckpt->valid_node_count);
513c5f37
JK		 4587 percpu_counter_set(&sbi->total_valid_inode_count,
4588 le32_to_cpu(sbi->ckpt->valid_inode_count));
aff063e2
JK		 4589 sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count);
4590 sbi->total_valid_block_count =
4591 le64_to_cpu(sbi->ckpt->valid_block_count);
4592 sbi->last_valid_block_count = sbi->total_valid_block_count;
daeb433e 4593 sbi->reserved_blocks = 0;
80d42145 4594 sbi->current_reserved_blocks = 0;
7e65be49 4595 limit_reserve_root(sbi);
1ae18f71 4596 adjust_unusable_cap_perc(sbi);
41382ec4 4597
4d57b86d 4598 f2fs_init_extent_cache_info(sbi);
1dcc336b 4599
4d57b86d 4600 f2fs_init_ino_entry_info(sbi);
aff063e2 4601
50fa53ec
CY		 4602 f2fs_init_fsync_node_info(sbi);
4603
261eeb9c
DJ		 4604 /* setup checkpoint request control and start checkpoint issue thread */
4605 f2fs_init_ckpt_req_control(sbi);
3f7070b0 4606 if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) &&
261eeb9c
DJ		 4607 test_opt(sbi, MERGE_CHECKPOINT)) {
4608 err = f2fs_start_ckpt_thread(sbi);
4609 if (err) {
4610 f2fs_err(sbi,
4611 "Failed to start F2FS issue_checkpoint_thread (%d)",
4612 err);
4613 goto stop_ckpt_thread;
4614 }
4615 }
4616
aff063e2 4617 /* setup f2fs internal modules */
4d57b86d 4618 err = f2fs_build_segment_manager(sbi);
a07ef784 4619 if (err) {
dcbb4c10
JP		 4620 f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
4621 err);
aff063e2 4622 goto free_sm;
a07ef784 4623 }
4d57b86d 4624 err = f2fs_build_node_manager(sbi);
a07ef784 4625 if (err) {
dcbb4c10
JP		 4626 f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
4627 err);
aff063e2 4628 goto free_nm;
a07ef784 4629 }
aff063e2 4630
300a8429
CY		 4631 err = adjust_reserved_segment(sbi);
4632 if (err)
4633 goto free_nm;
4634
8f1dbbbb 4635 /* For write statistics */
3a0a9cbc 4636 sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
8f1dbbbb
SL		 4637
4638 /* Read accumulated write IO statistics if exists */
4639 seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
4640 if (__exist_node_summaries(sbi))
4641 sbi->kbytes_written =
b2dde6fc 4642 le64_to_cpu(seg_i->journal->info.kbytes_written);
8f1dbbbb 4643
4d57b86d 4644 f2fs_build_gc_manager(sbi);
aff063e2 4645
60aa4d55
ST		 4646 err = f2fs_build_stats(sbi);
4647 if (err)
4648 goto free_nm;
4649
aff063e2
JK		 4650 /* get an inode for node space */
4651 sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
4652 if (IS_ERR(sbi->node_inode)) {
dcbb4c10 4653 f2fs_err(sbi, "Failed to read node inode");
aff063e2 4654 err = PTR_ERR(sbi->node_inode);
60aa4d55 4655 goto free_stats;
aff063e2
JK		 4656 }
4657
aff063e2
JK		 4658 /* read root inode and dentry */
4659 root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
4660 if (IS_ERR(root)) {
dcbb4c10 4661 f2fs_err(sbi, "Failed to read root inode");
aff063e2 4662 err = PTR_ERR(root);
60aa4d55 4663 goto free_node_inode;
aff063e2 4664 }
bcbfbd60
CY		 4665 if (!S_ISDIR(root->i_mode) || !root->i_blocks ||
4666 !root->i_size || !root->i_nlink) {
9d847950 4667 iput(root);
8f99a946 4668 err = -EINVAL;
60aa4d55 4669 goto free_node_inode;
8f99a946 4670 }
aff063e2
JK		 4671
4672 sb->s_root = d_make_root(root); /* allocate root dentry */
4673 if (!sb->s_root) {
4674 err = -ENOMEM;
025cdb16 4675 goto free_node_inode;
aff063e2
JK		 4676 }
4677
6ce19aff 4678 err = f2fs_init_compress_inode(sbi);
b59d0bae 4679 if (err)
a398101a 4680 goto free_root_inode;
b59d0bae 4681
6ce19aff
CY		 4682 err = f2fs_register_sysfs(sbi);
4683 if (err)
4684 goto free_compress_inode;
4685
ea676733 4686#ifdef CONFIG_QUOTA
76cf05d7 4687 /* Enable quota usage during mount */
7beb01f7 4688 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
ea676733 4689 err = f2fs_enable_quotas(sb);
730746ce 4690 if (err)
dcbb4c10 4691 f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
ea676733 4692 }
e1bb7d3d
CY		 4693
4694 quota_enabled = f2fs_recover_quota_begin(sbi);
ea676733 4695#endif
7a88ddb5 4696 /* if there are any orphan inodes, free them */
4d57b86d 4697 err = f2fs_recover_orphan_inodes(sbi);
4b2414d0 4698 if (err)
ea676733 4699 goto free_meta;
4b2414d0 4700
4354994f 4701 if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
aa2c8c43 4702 goto reset_checkpoint;
4354994f 4703
6437d1b0 4704 /* recover fsynced data */
a9117eca
CY		 4705 if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
4706 !test_opt(sbi, NORECOVERY)) {
081d78c2
JK		 4707 /*
4708 * mount should be failed, when device has readonly mode, and
4709 * previous checkpoint was not done by clean system shutdown.
4710 */
b61af314 4711 if (f2fs_hw_is_readonly(sbi)) {
23738e74
CY		 4712 if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4713 err = f2fs_recover_fsync_data(sbi, true);
4714 if (err > 0) {
4715 err = -EROFS;
4716 f2fs_err(sbi, "Need to recover fsync data, but "
4717 "write access unavailable, please try "
4718 "mount w/ disable_roll_forward or norecovery");
4719 }
4720 if (err < 0)
4721 goto free_meta;
4722 }
4723 f2fs_info(sbi, "write access unavailable, skipping recovery");
b61af314 4724 goto reset_checkpoint;
081d78c2 4725 }
2adc3505
CY		 4726
4727 if (need_fsck)
4728 set_sbi_flag(sbi, SBI_NEED_FSCK);
4729
aa2c8c43
CY		 4730 if (skip_recovery)
4731 goto reset_checkpoint;
a468f0ef 4732
4d57b86d 4733 err = f2fs_recover_fsync_data(sbi, false);
6781eabb 4734 if (err < 0) {
aa2c8c43
CY		 4735 if (err != -ENOMEM)
4736 skip_recovery = true;
2adc3505 4737 need_fsck = true;
dcbb4c10
JP		 4738 f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
4739 err);
4b2414d0 4740 goto free_meta;
ed2e621a 4741 }
6781eabb 4742 } else {
4d57b86d 4743 err = f2fs_recover_fsync_data(sbi, true);
6781eabb
JK		 4744
4745 if (!f2fs_readonly(sb) && err > 0) {
4746 err = -EINVAL;
dcbb4c10 4747 f2fs_err(sbi, "Need to recover fsync data");
ea676733 4748 goto free_meta;
6781eabb 4749 }
6437d1b0 4750 }
d508c94e 4751
e1bb7d3d
CY		 4752#ifdef CONFIG_QUOTA
4753 f2fs_recover_quota_end(sbi, quota_enabled);
4754#endif
aca90eea 4755reset_checkpoint:
d508c94e
SK		 4756 /*
4757 * If the f2fs is not readonly and fsync data recovery succeeds,
4758 * check zoned block devices' write pointer consistency.
4759 */
4760 if (!err && !f2fs_readonly(sb) && f2fs_sb_has_blkzoned(sbi)) {
4761 err = f2fs_check_write_pointer(sbi);
4762 if (err)
4763 goto free_meta;
4764 }
4765
093749e2
CY		 4766 f2fs_init_inmem_curseg(sbi);
4767
4d57b86d 4768 /* f2fs_recover_fsync_data() cleared this already */
315df839 4769 clear_sbi_flag(sbi, SBI_POR_DOING);
b59d0bae 4770
4354994f
DR		 4771 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
4772 err = f2fs_disable_checkpoint(sbi);
4773 if (err)
812a9597 4774 goto sync_free_meta;
4354994f
DR		 4775 } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
4776 f2fs_enable_checkpoint(sbi);
4777 }
4778
6437d1b0
JK		 4779 /*
4780 * If filesystem is not mounted as read-only then
4781 * do start the gc_thread.
4782 */
5911d2d1
CY		 4783 if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF ||
4784 test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) {
6437d1b0 4785 /* After POR, we can run background GC thread.*/
4d57b86d 4786 err = f2fs_start_gc_thread(sbi);
6437d1b0 4787 if (err)
812a9597 4788 goto sync_free_meta;
6437d1b0 4789 }
5222595d 4790 kvfree(options);
da554e48 4791
4792 /* recover broken superblock */
f2353d7b 4793 if (recovery) {
41214b3c 4794 err = f2fs_commit_super(sbi, true);
dcbb4c10
JP		 4795 f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
4796 sbi->valid_super_block ? 1 : 2, err);
da554e48 4797 }
4798
bae01eda
CY		 4799 f2fs_join_shrinker(sbi);
4800
84b89e5d
JK		 4801 f2fs_tuning_parameters(sbi);
4802
dcbb4c10
JP		 4803 f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
4804 cur_cp_version(F2FS_CKPT(sbi)));
6beceb54 4805 f2fs_update_time(sbi, CP_TIME);
d0239e1b 4806 f2fs_update_time(sbi, REQ_TIME);
db610a64 4807 clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
aff063e2 4808 return 0;
6437d1b0 4809
812a9597
JK		 4810sync_free_meta:
4811 /* safe to flush all the data */
4812 sync_filesystem(sbi->sb);
aa2c8c43 4813 retry_cnt = 0;
812a9597 4814
4b2414d0 4815free_meta:
ea676733 4816#ifdef CONFIG_QUOTA
26b5a079 4817 f2fs_truncate_quota_inode_pages(sb);
7beb01f7 4818 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
ea676733
JK		 4819 f2fs_quota_off_umount(sbi->sb);
4820#endif
4b2414d0 4821 /*
4d57b86d 4822 * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
4b2414d0 4823 * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
4d57b86d
CY		 4824 * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
4825 * falls into an infinite loop in f2fs_sync_meta_pages().
4b2414d0
CY		 4826 */
4827 truncate_inode_pages_final(META_MAPPING(sbi));
812a9597
JK		 4828 /* evict some inodes being cached by GC */
4829 evict_inodes(sb);
dc6b2055 4830 f2fs_unregister_sysfs(sbi);
6ce19aff
CY		 4831free_compress_inode:
4832 f2fs_destroy_compress_inode(sbi);
aff063e2
JK		 4833free_root_inode:
4834 dput(sb->s_root);
4835 sb->s_root = NULL;
4836free_node_inode:
4d57b86d 4837 f2fs_release_ino_entry(sbi, true);
bae01eda 4838 truncate_inode_pages_final(NODE_MAPPING(sbi));
aff063e2 4839 iput(sbi->node_inode);
7c77bf7d 4840 sbi->node_inode = NULL;
60aa4d55
ST		 4841free_stats:
4842 f2fs_destroy_stats(sbi);
aff063e2 4843free_nm:
5429c9db
DM		 4844 /* stop discard thread before destroying node manager */
4845 f2fs_stop_discard_thread(sbi);
4d57b86d 4846 f2fs_destroy_node_manager(sbi);
aff063e2 4847free_sm:
4d57b86d 4848 f2fs_destroy_segment_manager(sbi);
261eeb9c
DJ		 4849stop_ckpt_thread:
4850 f2fs_stop_ckpt_thread(sbi);
b62e71be
CY		 4851 /* flush s_error_work before sbi destroy */
4852 flush_work(&sbi->s_error_work);
7b02b220 4853 f2fs_destroy_post_read_wq(sbi);
3c62be17
JK		 4854free_devices:
4855 destroy_device_list(sbi);
5222595d 4856 kvfree(sbi->ckpt);
aff063e2
JK		 4857free_meta_inode:
4858 make_bad_inode(sbi->meta_inode);
4859 iput(sbi->meta_inode);
7c77bf7d 4860 sbi->meta_inode = NULL;
31083031
CY		 4861free_page_array_cache:
4862 f2fs_destroy_page_array_cache(sbi);
a999150f
CY		 4863free_xattr_cache:
4864 f2fs_destroy_xattr_caches(sbi);
0a595eba
JK		 4865free_io_dummy:
4866 mempool_destroy(sbi->write_io_dummy);
d7997e63
CY		 4867free_percpu:
4868 destroy_percpu_info(sbi);
a4b68176
DJ		 4869free_iostat:
4870 f2fs_destroy_iostat(sbi);
d7997e63 4871free_bio_info:
a912b54d 4872 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 4873 kvfree(sbi->write_io[i]);
5aba5430 4874
5298d4bf 4875#if IS_ENABLED(CONFIG_UNICODE)
eca4873e 4876 utf8_unload(sb->s_encoding);
89ff6005 4877 sb->s_encoding = NULL;
5aba5430 4878#endif
d7997e63 4879free_options:
4b2414d0
CY		 4880#ifdef CONFIG_QUOTA
4881 for (i = 0; i < MAXQUOTAS; i++)
ba87a45c 4882 kfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 4883#endif
ac4acb1f 4884 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
5222595d 4885 kvfree(options);
aff063e2 4886free_sb_buf:
742532d1 4887 kfree(raw_super);
aff063e2 4888free_sbi:
43b6573b
KM		 4889 if (sbi->s_chksum_driver)
4890 crypto_free_shash(sbi->s_chksum_driver);
742532d1 4891 kfree(sbi);
c919330d 4892 sb->s_fs_info = NULL;
ed2e621a
JK		 4893
4894 /* give only one another chance */
aa2c8c43
CY		 4895 if (retry_cnt > 0 && skip_recovery) {
4896 retry_cnt--;
ed2e621a
JK		 4897 shrink_dcache_sb(sb);
4898 goto try_onemore;
4899 }
aff063e2
JK		 4900 return err;
4901}
4902
4903static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags,
4904 const char *dev_name, void *data)
4905{
4906 return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super);
4907}
4908
30a5537f
JK		 4909static void kill_f2fs_super(struct super_block *sb)
4910{
275dca46 4911 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1cb50f87 4912
275dca46 4913 if (sb->s_root) {
1cb50f87
JK		 4914 set_sbi_flag(sbi, SBI_IS_CLOSE);
4915 f2fs_stop_gc_thread(sbi);
4916 f2fs_stop_discard_thread(sbi);
4917
6ce19aff
CY		 4918#ifdef CONFIG_F2FS_FS_COMPRESSION
4919 /*
4920 * latter evict_inode() can bypass checking and invalidating
4921 * compress inode cache.
4922 */
4923 if (test_opt(sbi, COMPRESS_CACHE))
4924 truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
4925#endif
4926
1cb50f87
JK		 4927 if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
4928 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
4929 struct cp_control cpc = {
4930 .reason = CP_UMOUNT,
4931 };
eb61c2cc 4932 stat_inc_cp_call_count(sbi, TOTAL_CALL);
1cb50f87
JK		 4933 f2fs_write_checkpoint(sbi, &cpc);
4934 }
1378752b
CY		 4935
4936 if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb))
4937 sb->s_flags &= ~SB_RDONLY;
cce13252 4938 }
30a5537f 4939 kill_block_super(sb);
275dca46
EB		 4940 /* Release block devices last, after fscrypt_destroy_keyring(). */
4941 if (sbi) {
4942 destroy_device_list(sbi);
4943 kfree(sbi);
4944 sb->s_fs_info = NULL;
4945 }
30a5537f
JK		 4946}
4947
aff063e2
JK		 4948static struct file_system_type f2fs_fs_type = {
4949 .owner = THIS_MODULE,
4950 .name = "f2fs",
4951 .mount = f2fs_mount,
30a5537f 4952 .kill_sb = kill_f2fs_super,
984fc4e7 4953 .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP,
aff063e2 4954};
7f78e035 4955MODULE_ALIAS_FS("f2fs");
aff063e2 4956
6e6093a8 4957static int __init init_inodecache(void)
aff063e2 4958{
5d097056
VD		 4959 f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache",
4960 sizeof(struct f2fs_inode_info), 0,
4961 SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL);
870af777 4962 return f2fs_inode_cachep ? 0 : -ENOMEM;
aff063e2
JK		 4963}
4964
4965static void destroy_inodecache(void)
4966{
4967 /*
4968 * Make sure all delayed rcu free inodes are flushed before we
4969 * destroy cache.
4970 */
4971 rcu_barrier();
4972 kmem_cache_destroy(f2fs_inode_cachep);
4973}
4974
4975static int __init init_f2fs_fs(void)
4976{
4977 int err;
4978
4071e67c 4979 if (PAGE_SIZE != F2FS_BLKSIZE) {
d7e9a903 4980 printk("F2FS not supported on PAGE_SIZE(%lu) != BLOCK_SIZE(%lu)\n",
4071e67c
AP		 4981 PAGE_SIZE, F2FS_BLKSIZE);
4982 return -EINVAL;
4983 }
4984
aff063e2
JK		 4985 err = init_inodecache();
4986 if (err)
4987 goto fail;
4d57b86d 4988 err = f2fs_create_node_manager_caches();
aff063e2 4989 if (err)
9890ff3f 4990 goto free_inodecache;
4d57b86d 4991 err = f2fs_create_segment_manager_caches();
aff063e2 4992 if (err)
9890ff3f 4993 goto free_node_manager_caches;
4d57b86d 4994 err = f2fs_create_checkpoint_caches();
aff063e2 4995 if (err)
06292073 4996 goto free_segment_manager_caches;
cad83c96 4997 err = f2fs_create_recovery_cache();
1dcc336b
CY		 4998 if (err)
4999 goto free_checkpoint_caches;
cad83c96
CY		 5000 err = f2fs_create_extent_cache();
5001 if (err)
5002 goto free_recovery_cache;
093749e2 5003 err = f2fs_create_garbage_collection_cache();
a398101a 5004 if (err)
1dcc336b 5005 goto free_extent_cache;
093749e2
CY		 5006 err = f2fs_init_sysfs();
5007 if (err)
5008 goto free_garbage_collection_cache;
bfcba5ba 5009 err = f2fs_init_shrinker();
cfc4d971 5010 if (err)
a398101a 5011 goto free_sysfs;
2658e50d
JK		 5012 err = register_filesystem(&f2fs_fs_type);
5013 if (err)
5014 goto free_shrinker;
21acc07d 5015 f2fs_create_root_stats();
6dbb1796
EB		 5016 err = f2fs_init_post_read_processing();
5017 if (err)
5018 goto free_root_stats;
a4b68176 5019 err = f2fs_init_iostat_processing();
0b20fcec
CY		 5020 if (err)
5021 goto free_post_read;
a4b68176
DJ		 5022 err = f2fs_init_bio_entry_cache();
5023 if (err)
5024 goto free_iostat;
f543805f
CY		 5025 err = f2fs_init_bioset();
5026 if (err)
db8dcd25 5027 goto free_bio_entry_cache;
5e6bbde9
CY		 5028 err = f2fs_init_compress_mempool();
5029 if (err)
5030 goto free_bioset;
c68d6c88
CY		 5031 err = f2fs_init_compress_cache();
5032 if (err)
5033 goto free_compress_mempool;
4d9a2bb1
CY		 5034 err = f2fs_create_casefold_cache();
5035 if (err)
5036 goto free_compress_cache;
9890ff3f 5037 return 0;
4d9a2bb1
CY		 5038free_compress_cache:
5039 f2fs_destroy_compress_cache();
c68d6c88
CY		 5040free_compress_mempool:
5041 f2fs_destroy_compress_mempool();
5e6bbde9
CY		 5042free_bioset:
5043 f2fs_destroy_bioset();
db8dcd25 5044free_bio_entry_cache:
f543805f 5045 f2fs_destroy_bio_entry_cache();
a4b68176
DJ		 5046free_iostat:
5047 f2fs_destroy_iostat_processing();
0b20fcec
CY		 5048free_post_read:
5049 f2fs_destroy_post_read_processing();
6dbb1796
EB		 5050free_root_stats:
5051 f2fs_destroy_root_stats();
787c7b8c 5052 unregister_filesystem(&f2fs_fs_type);
2658e50d 5053free_shrinker:
bfcba5ba 5054 f2fs_exit_shrinker();
a398101a 5055free_sysfs:
dc6b2055 5056 f2fs_exit_sysfs();
093749e2
CY		 5057free_garbage_collection_cache:
5058 f2fs_destroy_garbage_collection_cache();
1dcc336b 5059free_extent_cache:
4d57b86d 5060 f2fs_destroy_extent_cache();
cad83c96
CY		 5061free_recovery_cache:
5062 f2fs_destroy_recovery_cache();
9890ff3f 5063free_checkpoint_caches:
4d57b86d 5064 f2fs_destroy_checkpoint_caches();
7fd9e544 5065free_segment_manager_caches:
4d57b86d 5066 f2fs_destroy_segment_manager_caches();
9890ff3f 5067free_node_manager_caches:
4d57b86d 5068 f2fs_destroy_node_manager_caches();
9890ff3f
ZH		 5069free_inodecache:
5070 destroy_inodecache();
aff063e2
JK		 5071fail:
5072 return err;
5073}
5074
5075static void __exit exit_f2fs_fs(void)
5076{
4d9a2bb1 5077 f2fs_destroy_casefold_cache();
c68d6c88 5078 f2fs_destroy_compress_cache();
5e6bbde9 5079 f2fs_destroy_compress_mempool();
f543805f 5080 f2fs_destroy_bioset();
0b20fcec 5081 f2fs_destroy_bio_entry_cache();
a4b68176 5082 f2fs_destroy_iostat_processing();
6dbb1796 5083 f2fs_destroy_post_read_processing();
4589d25d 5084 f2fs_destroy_root_stats();
aff063e2 5085 unregister_filesystem(&f2fs_fs_type);
bfcba5ba 5086 f2fs_exit_shrinker();
dc6b2055 5087 f2fs_exit_sysfs();
093749e2 5088 f2fs_destroy_garbage_collection_cache();
4d57b86d 5089 f2fs_destroy_extent_cache();
cad83c96 5090 f2fs_destroy_recovery_cache();
4d57b86d
CY		 5091 f2fs_destroy_checkpoint_caches();
5092 f2fs_destroy_segment_manager_caches();
5093 f2fs_destroy_node_manager_caches();
aff063e2
JK		 5094 destroy_inodecache();
5095}
5096
5097module_init(init_f2fs_fs)
5098module_exit(exit_f2fs_fs)
5099
5100MODULE_AUTHOR("Samsung Electronics's Praesto Team");
5101MODULE_DESCRIPTION("Flash Friendly File System");
5102MODULE_LICENSE("GPL");
0dd57178 5103MODULE_SOFTDEP("pre: crc32");
b4b9d34c 5104
Linux 6.x block layer and io_uring tree(s)