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Merge tag 'for-linus-5.7-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-block.git] / fs / f2fs / super.c
CommitLineData
7c1a000d 1// SPDX-License-Identifier: GPL-2.0
0a8165d7 2/*
aff063e2
JK		 3 * fs/f2fs/super.c
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
aff063e2
JK		 7 */
8#include <linux/module.h>
9#include <linux/init.h>
10#include <linux/fs.h>
11#include <linux/statfs.h>
aff063e2
JK		 12#include <linux/buffer_head.h>
13#include <linux/backing-dev.h>
14#include <linux/kthread.h>
15#include <linux/parser.h>
16#include <linux/mount.h>
17#include <linux/seq_file.h>
5e176d54 18#include <linux/proc_fs.h>
aff063e2
JK		 19#include <linux/random.h>
20#include <linux/exportfs.h>
d3ee456d 21#include <linux/blkdev.h>
0abd675e 22#include <linux/quotaops.h>
aff063e2 23#include <linux/f2fs_fs.h>
b59d0bae 24#include <linux/sysfs.h>
4b2414d0 25#include <linux/quota.h>
5aba5430 26#include <linux/unicode.h>
c6a564ff 27#include <linux/part_stat.h>
aff063e2
JK		 28
29#include "f2fs.h"
30#include "node.h"
5ec4e49f 31#include "segment.h"
aff063e2 32#include "xattr.h"
b59d0bae 33#include "gc.h"
db9f7c1a 34#include "trace.h"
aff063e2 35
a2a4a7e4
NJ		 36#define CREATE_TRACE_POINTS
37#include <trace/events/f2fs.h>
38
aff063e2
JK		 39static struct kmem_cache *f2fs_inode_cachep;
40
73faec4d 41#ifdef CONFIG_F2FS_FAULT_INJECTION
2c63fead 42
19880e6e 43const char *f2fs_fault_name[FAULT_MAX] = {
2c63fead 44 [FAULT_KMALLOC] = "kmalloc",
628b3d14 45 [FAULT_KVMALLOC] = "kvmalloc",
c41f3cc3 46 [FAULT_PAGE_ALLOC] = "page alloc",
01eccef7 47 [FAULT_PAGE_GET] = "page get",
d62fe971 48 [FAULT_ALLOC_BIO] = "alloc bio",
cb78942b
JK		 49 [FAULT_ALLOC_NID] = "alloc nid",
50 [FAULT_ORPHAN] = "orphan",
51 [FAULT_BLOCK] = "no more block",
52 [FAULT_DIR_DEPTH] = "too big dir depth",
53aa6bbf 53 [FAULT_EVICT_INODE] = "evict_inode fail",
14b44d23 54 [FAULT_TRUNCATE] = "truncate fail",
6f5c2ed0 55 [FAULT_READ_IO] = "read IO error",
0f348028 56 [FAULT_CHECKPOINT] = "checkpoint error",
b83dcfe6 57 [FAULT_DISCARD] = "discard error",
6f5c2ed0 58 [FAULT_WRITE_IO] = "write IO error",
2c63fead 59};
08796897 60
d494500a
CY		 61void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
62 unsigned int type)
08796897 63{
63189b78 64 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1ecc0c5c 65
08796897 66 if (rate) {
1ecc0c5c
CY		 67 atomic_set(&ffi->inject_ops, 0);
68 ffi->inject_rate = rate;
08796897 69 }
d494500a
CY		 70
71 if (type)
72 ffi->inject_type = type;
73
74 if (!rate && !type)
75 memset(ffi, 0, sizeof(struct f2fs_fault_info));
08796897 76}
73faec4d
JK		 77#endif
78
2658e50d
JK		 79/* f2fs-wide shrinker description */
80static struct shrinker f2fs_shrinker_info = {
81 .scan_objects = f2fs_shrink_scan,
82 .count_objects = f2fs_shrink_count,
83 .seeks = DEFAULT_SEEKS,
84};
85
aff063e2 86enum {
696c018c 87 Opt_gc_background,
aff063e2 88 Opt_disable_roll_forward,
2d834bf9 89 Opt_norecovery,
aff063e2 90 Opt_discard,
64058be9 91 Opt_nodiscard,
aff063e2 92 Opt_noheap,
7a20b8a6 93 Opt_heap,
4058c511 94 Opt_user_xattr,
aff063e2 95 Opt_nouser_xattr,
4058c511 96 Opt_acl,
aff063e2
JK		 97 Opt_noacl,
98 Opt_active_logs,
99 Opt_disable_ext_identify,
444c580f 100 Opt_inline_xattr,
23cf7212 101 Opt_noinline_xattr,
6afc662e 102 Opt_inline_xattr_size,
8274de77 103 Opt_inline_data,
5efd3c6f 104 Opt_inline_dentry,
97c1794a 105 Opt_noinline_dentry,
6b4afdd7 106 Opt_flush_merge,
69e9e427 107 Opt_noflush_merge,
0f7b2abd 108 Opt_nobarrier,
d5053a34 109 Opt_fastboot,
89672159 110 Opt_extent_cache,
7daaea25 111 Opt_noextent_cache,
75342797 112 Opt_noinline_data,
343f40f0 113 Opt_data_flush,
7e65be49 114 Opt_reserve_root,
7c2e5963
JK		 115 Opt_resgid,
116 Opt_resuid,
36abef4e 117 Opt_mode,
ec91538d 118 Opt_io_size_bits,
73faec4d 119 Opt_fault_injection,
d494500a 120 Opt_fault_type,
6d94c74a
JK		 121 Opt_lazytime,
122 Opt_nolazytime,
4b2414d0
CY		 123 Opt_quota,
124 Opt_noquota,
0abd675e
CY		 125 Opt_usrquota,
126 Opt_grpquota,
5c57132e 127 Opt_prjquota,
4b2414d0
CY		 128 Opt_usrjquota,
129 Opt_grpjquota,
130 Opt_prjjquota,
131 Opt_offusrjquota,
132 Opt_offgrpjquota,
133 Opt_offprjjquota,
134 Opt_jqfmt_vfsold,
135 Opt_jqfmt_vfsv0,
136 Opt_jqfmt_vfsv1,
0cdd3195 137 Opt_whint,
07939627 138 Opt_alloc,
93cf93f1 139 Opt_fsync,
ff62af20 140 Opt_test_dummy_encryption,
4d3aed70
DR		 141 Opt_checkpoint_disable,
142 Opt_checkpoint_disable_cap,
143 Opt_checkpoint_disable_cap_perc,
144 Opt_checkpoint_enable,
4c8ff709
CY		 145 Opt_compress_algorithm,
146 Opt_compress_log_size,
147 Opt_compress_extension,
aff063e2
JK		 148 Opt_err,
149};
150
151static match_table_t f2fs_tokens = {
696c018c 152 {Opt_gc_background, "background_gc=%s"},
aff063e2 153 {Opt_disable_roll_forward, "disable_roll_forward"},
2d834bf9 154 {Opt_norecovery, "norecovery"},
aff063e2 155 {Opt_discard, "discard"},
64058be9 156 {Opt_nodiscard, "nodiscard"},
aff063e2 157 {Opt_noheap, "no_heap"},
7a20b8a6 158 {Opt_heap, "heap"},
4058c511 159 {Opt_user_xattr, "user_xattr"},
aff063e2 160 {Opt_nouser_xattr, "nouser_xattr"},
4058c511 161 {Opt_acl, "acl"},
aff063e2
JK		 162 {Opt_noacl, "noacl"},
163 {Opt_active_logs, "active_logs=%u"},
164 {Opt_disable_ext_identify, "disable_ext_identify"},
444c580f 165 {Opt_inline_xattr, "inline_xattr"},
23cf7212 166 {Opt_noinline_xattr, "noinline_xattr"},
6afc662e 167 {Opt_inline_xattr_size, "inline_xattr_size=%u"},
8274de77 168 {Opt_inline_data, "inline_data"},
5efd3c6f 169 {Opt_inline_dentry, "inline_dentry"},
97c1794a 170 {Opt_noinline_dentry, "noinline_dentry"},
6b4afdd7 171 {Opt_flush_merge, "flush_merge"},
69e9e427 172 {Opt_noflush_merge, "noflush_merge"},
0f7b2abd 173 {Opt_nobarrier, "nobarrier"},
d5053a34 174 {Opt_fastboot, "fastboot"},
89672159 175 {Opt_extent_cache, "extent_cache"},
7daaea25 176 {Opt_noextent_cache, "noextent_cache"},
75342797 177 {Opt_noinline_data, "noinline_data"},
343f40f0 178 {Opt_data_flush, "data_flush"},
7e65be49 179 {Opt_reserve_root, "reserve_root=%u"},
7c2e5963
JK		 180 {Opt_resgid, "resgid=%u"},
181 {Opt_resuid, "resuid=%u"},
36abef4e 182 {Opt_mode, "mode=%s"},
ec91538d 183 {Opt_io_size_bits, "io_bits=%u"},
73faec4d 184 {Opt_fault_injection, "fault_injection=%u"},
d494500a 185 {Opt_fault_type, "fault_type=%u"},
6d94c74a
JK		 186 {Opt_lazytime, "lazytime"},
187 {Opt_nolazytime, "nolazytime"},
4b2414d0
CY		 188 {Opt_quota, "quota"},
189 {Opt_noquota, "noquota"},
0abd675e
CY		 190 {Opt_usrquota, "usrquota"},
191 {Opt_grpquota, "grpquota"},
5c57132e 192 {Opt_prjquota, "prjquota"},
4b2414d0
CY		 193 {Opt_usrjquota, "usrjquota=%s"},
194 {Opt_grpjquota, "grpjquota=%s"},
195 {Opt_prjjquota, "prjjquota=%s"},
196 {Opt_offusrjquota, "usrjquota="},
197 {Opt_offgrpjquota, "grpjquota="},
198 {Opt_offprjjquota, "prjjquota="},
199 {Opt_jqfmt_vfsold, "jqfmt=vfsold"},
200 {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
201 {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
0cdd3195 202 {Opt_whint, "whint_mode=%s"},
07939627 203 {Opt_alloc, "alloc_mode=%s"},
93cf93f1 204 {Opt_fsync, "fsync_mode=%s"},
ff62af20 205 {Opt_test_dummy_encryption, "test_dummy_encryption"},
4d3aed70
DR		 206 {Opt_checkpoint_disable, "checkpoint=disable"},
207 {Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
208 {Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
209 {Opt_checkpoint_enable, "checkpoint=enable"},
4c8ff709
CY		 210 {Opt_compress_algorithm, "compress_algorithm=%s"},
211 {Opt_compress_log_size, "compress_log_size=%u"},
212 {Opt_compress_extension, "compress_extension=%s"},
aff063e2
JK		 213 {Opt_err, NULL},
214};
215
dcbb4c10 216void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...)
a07ef784
NJ		 217{
218 struct va_format vaf;
219 va_list args;
dcbb4c10 220 int level;
a07ef784
NJ		 221
222 va_start(args, fmt);
dcbb4c10
JP		 223
224 level = printk_get_level(fmt);
225 vaf.fmt = printk_skip_level(fmt);
a07ef784 226 vaf.va = &args;
dcbb4c10
JP		 227 printk("%c%cF2FS-fs (%s): %pV\n",
228 KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
229
a07ef784
NJ		 230 va_end(args);
231}
232
5aba5430
DR		 233#ifdef CONFIG_UNICODE
234static const struct f2fs_sb_encodings {
235 __u16 magic;
236 char *name;
237 char *version;
238} f2fs_sb_encoding_map[] = {
239 {F2FS_ENC_UTF8_12_1, "utf8", "12.1.0"},
240};
241
242static int f2fs_sb_read_encoding(const struct f2fs_super_block *sb,
243 const struct f2fs_sb_encodings **encoding,
244 __u16 *flags)
245{
246 __u16 magic = le16_to_cpu(sb->s_encoding);
247 int i;
248
249 for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++)
250 if (magic == f2fs_sb_encoding_map[i].magic)
251 break;
252
253 if (i >= ARRAY_SIZE(f2fs_sb_encoding_map))
254 return -EINVAL;
255
256 *encoding = &f2fs_sb_encoding_map[i];
257 *flags = le16_to_cpu(sb->s_encoding_flags);
258
259 return 0;
260}
261#endif
262
7e65be49
JK		 263static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
264{
9a9aecaa
DR		 265 block_t limit = min((sbi->user_block_count << 1) / 1000,
266 sbi->user_block_count - sbi->reserved_blocks);
7e65be49
JK		 267
268 /* limit is 0.2% */
63189b78
CY		 269 if (test_opt(sbi, RESERVE_ROOT) &&
270 F2FS_OPTION(sbi).root_reserved_blocks > limit) {
271 F2FS_OPTION(sbi).root_reserved_blocks = limit;
dcbb4c10
JP		 272 f2fs_info(sbi, "Reduce reserved blocks for root = %u",
273 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 274 }
7c2e5963 275 if (!test_opt(sbi, RESERVE_ROOT) &&
63189b78 276 (!uid_eq(F2FS_OPTION(sbi).s_resuid,
7c2e5963 277 make_kuid(&init_user_ns, F2FS_DEF_RESUID)) ||
63189b78 278 !gid_eq(F2FS_OPTION(sbi).s_resgid,
7c2e5963 279 make_kgid(&init_user_ns, F2FS_DEF_RESGID))))
dcbb4c10
JP		 280 f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
281 from_kuid_munged(&init_user_ns,
282 F2FS_OPTION(sbi).s_resuid),
283 from_kgid_munged(&init_user_ns,
284 F2FS_OPTION(sbi).s_resgid));
7e65be49
JK		 285}
286
aff063e2
JK		 287static void init_once(void *foo)
288{
289 struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
290
aff063e2
JK		 291 inode_init_once(&fi->vfs_inode);
292}
293
4b2414d0
CY		 294#ifdef CONFIG_QUOTA
295static const char * const quotatypes[] = INITQFNAMES;
296#define QTYPE2NAME(t) (quotatypes[t])
297static int f2fs_set_qf_name(struct super_block *sb, int qtype,
298 substring_t *args)
299{
300 struct f2fs_sb_info *sbi = F2FS_SB(sb);
301 char *qname;
302 int ret = -EINVAL;
303
63189b78 304 if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 305 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 306 return -EINVAL;
307 }
7beb01f7 308 if (f2fs_sb_has_quota_ino(sbi)) {
dcbb4c10 309 f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name");
ea676733
JK		 310 return 0;
311 }
312
4b2414d0
CY		 313 qname = match_strdup(args);
314 if (!qname) {
dcbb4c10 315 f2fs_err(sbi, "Not enough memory for storing quotafile name");
f365c6cc 316 return -ENOMEM;
4b2414d0 317 }
63189b78
CY		 318 if (F2FS_OPTION(sbi).s_qf_names[qtype]) {
319 if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0)
4b2414d0
CY		 320 ret = 0;
321 else
dcbb4c10 322 f2fs_err(sbi, "%s quota file already specified",
4b2414d0
CY		 323 QTYPE2NAME(qtype));
324 goto errout;
325 }
326 if (strchr(qname, '/')) {
dcbb4c10 327 f2fs_err(sbi, "quotafile must be on filesystem root");
4b2414d0
CY		 328 goto errout;
329 }
63189b78 330 F2FS_OPTION(sbi).s_qf_names[qtype] = qname;
4b2414d0
CY		 331 set_opt(sbi, QUOTA);
332 return 0;
333errout:
5222595d 334 kvfree(qname);
4b2414d0
CY		 335 return ret;
336}
337
338static int f2fs_clear_qf_name(struct super_block *sb, int qtype)
339{
340 struct f2fs_sb_info *sbi = F2FS_SB(sb);
341
63189b78 342 if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) {
dcbb4c10 343 f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
4b2414d0
CY		 344 return -EINVAL;
345 }
5222595d 346 kvfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
63189b78 347 F2FS_OPTION(sbi).s_qf_names[qtype] = NULL;
4b2414d0
CY		 348 return 0;
349}
350
351static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
352{
353 /*
354 * We do the test below only for project quotas. 'usrquota' and
355 * 'grpquota' mount options are allowed even without quota feature
356 * to support legacy quotas in quota files.
357 */
7beb01f7 358 if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) {
dcbb4c10 359 f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement.");
4b2414d0
CY		 360 return -1;
361 }
63189b78
CY		 362 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
363 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
364 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) {
365 if (test_opt(sbi, USRQUOTA) &&
366 F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
4b2414d0
CY		 367 clear_opt(sbi, USRQUOTA);
368
63189b78
CY		 369 if (test_opt(sbi, GRPQUOTA) &&
370 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
4b2414d0
CY		 371 clear_opt(sbi, GRPQUOTA);
372
63189b78
CY		 373 if (test_opt(sbi, PRJQUOTA) &&
374 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4b2414d0
CY		 375 clear_opt(sbi, PRJQUOTA);
376
377 if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) ||
378 test_opt(sbi, PRJQUOTA)) {
dcbb4c10 379 f2fs_err(sbi, "old and new quota format mixing");
4b2414d0
CY		 380 return -1;
381 }
382
63189b78 383 if (!F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 384 f2fs_err(sbi, "journaled quota format not specified");
4b2414d0
CY		 385 return -1;
386 }
387 }
ea676733 388
7beb01f7 389 if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) {
dcbb4c10 390 f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt");
63189b78 391 F2FS_OPTION(sbi).s_jquota_fmt = 0;
ea676733 392 }
4b2414d0
CY		 393 return 0;
394}
395#endif
396
696c018c
NJ		 397static int parse_options(struct super_block *sb, char *options)
398{
399 struct f2fs_sb_info *sbi = F2FS_SB(sb);
400 substring_t args[MAX_OPT_ARGS];
4c8ff709 401 unsigned char (*ext)[F2FS_EXTENSION_LEN];
696c018c 402 char *p, *name;
4c8ff709 403 int arg = 0, ext_cnt;
7c2e5963
JK		 404 kuid_t uid;
405 kgid_t gid;
4b2414d0
CY		 406#ifdef CONFIG_QUOTA
407 int ret;
408#endif
696c018c
NJ		 409
410 if (!options)
411 return 0;
412
413 while ((p = strsep(&options, ",")) != NULL) {
414 int token;
415 if (!*p)
416 continue;
417 /*
418 * Initialize args struct so we know whether arg was
419 * found; some options take optional arguments.
420 */
421 args[0].to = args[0].from = NULL;
422 token = match_token(p, f2fs_tokens, args);
423
424 switch (token) {
425 case Opt_gc_background:
426 name = match_strdup(&args[0]);
427
428 if (!name)
429 return -ENOMEM;
6aefd93b 430 if (strlen(name) == 2 && !strncmp(name, "on", 2)) {
bbbc34fd 431 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
6aefd93b 432 } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) {
bbbc34fd 433 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
6aefd93b 434 } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) {
bbbc34fd 435 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
6aefd93b 436 } else {
5222595d 437 kvfree(name);
696c018c
NJ		 438 return -EINVAL;
439 }
5222595d 440 kvfree(name);
696c018c
NJ		 441 break;
442 case Opt_disable_roll_forward:
443 set_opt(sbi, DISABLE_ROLL_FORWARD);
444 break;
2d834bf9
JK		 445 case Opt_norecovery:
446 /* this option mounts f2fs with ro */
a9117eca 447 set_opt(sbi, NORECOVERY);
2d834bf9
JK		 448 if (!f2fs_readonly(sb))
449 return -EINVAL;
450 break;
696c018c 451 case Opt_discard:
7d20c8ab 452 set_opt(sbi, DISCARD);
696c018c 453 break;
64058be9 454 case Opt_nodiscard:
7beb01f7 455 if (f2fs_sb_has_blkzoned(sbi)) {
dcbb4c10 456 f2fs_warn(sbi, "discard is required for zoned block devices");
96ba2dec
DLM		 457 return -EINVAL;
458 }
64058be9 459 clear_opt(sbi, DISCARD);
487df616 460 break;
696c018c
NJ		 461 case Opt_noheap:
462 set_opt(sbi, NOHEAP);
463 break;
7a20b8a6
JK		 464 case Opt_heap:
465 clear_opt(sbi, NOHEAP);
466 break;
696c018c 467#ifdef CONFIG_F2FS_FS_XATTR
4058c511
KA		 468 case Opt_user_xattr:
469 set_opt(sbi, XATTR_USER);
470 break;
696c018c
NJ		 471 case Opt_nouser_xattr:
472 clear_opt(sbi, XATTR_USER);
473 break;
444c580f
JK		 474 case Opt_inline_xattr:
475 set_opt(sbi, INLINE_XATTR);
476 break;
23cf7212
CY		 477 case Opt_noinline_xattr:
478 clear_opt(sbi, INLINE_XATTR);
479 break;
6afc662e
CY		 480 case Opt_inline_xattr_size:
481 if (args->from && match_int(args, &arg))
482 return -EINVAL;
483 set_opt(sbi, INLINE_XATTR_SIZE);
63189b78 484 F2FS_OPTION(sbi).inline_xattr_size = arg;
6afc662e 485 break;
696c018c 486#else
4058c511 487 case Opt_user_xattr:
dcbb4c10 488 f2fs_info(sbi, "user_xattr options not supported");
4058c511 489 break;
696c018c 490 case Opt_nouser_xattr:
dcbb4c10 491 f2fs_info(sbi, "nouser_xattr options not supported");
696c018c 492 break;
444c580f 493 case Opt_inline_xattr:
dcbb4c10 494 f2fs_info(sbi, "inline_xattr options not supported");
444c580f 495 break;
23cf7212 496 case Opt_noinline_xattr:
dcbb4c10 497 f2fs_info(sbi, "noinline_xattr options not supported");
23cf7212 498 break;
696c018c
NJ		 499#endif
500#ifdef CONFIG_F2FS_FS_POSIX_ACL
4058c511
KA		 501 case Opt_acl:
502 set_opt(sbi, POSIX_ACL);
503 break;
696c018c
NJ		 504 case Opt_noacl:
505 clear_opt(sbi, POSIX_ACL);
506 break;
507#else
4058c511 508 case Opt_acl:
dcbb4c10 509 f2fs_info(sbi, "acl options not supported");
4058c511 510 break;
696c018c 511 case Opt_noacl:
dcbb4c10 512 f2fs_info(sbi, "noacl options not supported");
696c018c
NJ		 513 break;
514#endif
515 case Opt_active_logs:
516 if (args->from && match_int(args, &arg))
517 return -EINVAL;
518 if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE)
519 return -EINVAL;
63189b78 520 F2FS_OPTION(sbi).active_logs = arg;
696c018c
NJ		 521 break;
522 case Opt_disable_ext_identify:
523 set_opt(sbi, DISABLE_EXT_IDENTIFY);
524 break;
8274de77
HL		 525 case Opt_inline_data:
526 set_opt(sbi, INLINE_DATA);
527 break;
5efd3c6f
CY		 528 case Opt_inline_dentry:
529 set_opt(sbi, INLINE_DENTRY);
530 break;
97c1794a
CY		 531 case Opt_noinline_dentry:
532 clear_opt(sbi, INLINE_DENTRY);
533 break;
6b4afdd7
JK		 534 case Opt_flush_merge:
535 set_opt(sbi, FLUSH_MERGE);
536 break;
69e9e427
JK		 537 case Opt_noflush_merge:
538 clear_opt(sbi, FLUSH_MERGE);
539 break;
0f7b2abd
JK		 540 case Opt_nobarrier:
541 set_opt(sbi, NOBARRIER);
542 break;
d5053a34
JK		 543 case Opt_fastboot:
544 set_opt(sbi, FASTBOOT);
545 break;
89672159
CY		 546 case Opt_extent_cache:
547 set_opt(sbi, EXTENT_CACHE);
548 break;
7daaea25
JK		 549 case Opt_noextent_cache:
550 clear_opt(sbi, EXTENT_CACHE);
551 break;
75342797
WL		 552 case Opt_noinline_data:
553 clear_opt(sbi, INLINE_DATA);
554 break;
343f40f0
CY		 555 case Opt_data_flush:
556 set_opt(sbi, DATA_FLUSH);
557 break;
7e65be49
JK		 558 case Opt_reserve_root:
559 if (args->from && match_int(args, &arg))
560 return -EINVAL;
561 if (test_opt(sbi, RESERVE_ROOT)) {
dcbb4c10
JP		 562 f2fs_info(sbi, "Preserve previous reserve_root=%u",
563 F2FS_OPTION(sbi).root_reserved_blocks);
7e65be49 564 } else {
63189b78 565 F2FS_OPTION(sbi).root_reserved_blocks = arg;
7e65be49
JK		 566 set_opt(sbi, RESERVE_ROOT);
567 }
568 break;
7c2e5963
JK		 569 case Opt_resuid:
570 if (args->from && match_int(args, &arg))
571 return -EINVAL;
572 uid = make_kuid(current_user_ns(), arg);
573 if (!uid_valid(uid)) {
dcbb4c10 574 f2fs_err(sbi, "Invalid uid value %d", arg);
7c2e5963
JK		 575 return -EINVAL;
576 }
63189b78 577 F2FS_OPTION(sbi).s_resuid = uid;
7c2e5963
JK		 578 break;
579 case Opt_resgid:
580 if (args->from && match_int(args, &arg))
581 return -EINVAL;
582 gid = make_kgid(current_user_ns(), arg);
583 if (!gid_valid(gid)) {
dcbb4c10 584 f2fs_err(sbi, "Invalid gid value %d", arg);
7c2e5963
JK		 585 return -EINVAL;
586 }
63189b78 587 F2FS_OPTION(sbi).s_resgid = gid;
7c2e5963 588 break;
36abef4e
JK		 589 case Opt_mode:
590 name = match_strdup(&args[0]);
591
592 if (!name)
593 return -ENOMEM;
594 if (strlen(name) == 8 &&
595 !strncmp(name, "adaptive", 8)) {
7beb01f7 596 if (f2fs_sb_has_blkzoned(sbi)) {
dcbb4c10 597 f2fs_warn(sbi, "adaptive mode is not allowed with zoned block device feature");
5222595d 598 kvfree(name);
3adc57e9
DLM		 599 return -EINVAL;
600 }
b0332a0f 601 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
36abef4e
JK		 602 } else if (strlen(name) == 3 &&
603 !strncmp(name, "lfs", 3)) {
b0332a0f 604 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
36abef4e 605 } else {
5222595d 606 kvfree(name);
36abef4e
JK		 607 return -EINVAL;
608 }
5222595d 609 kvfree(name);
36abef4e 610 break;
ec91538d
JK		 611 case Opt_io_size_bits:
612 if (args->from && match_int(args, &arg))
613 return -EINVAL;
6d52e135 614 if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_PAGES)) {
dcbb4c10
JP		 615 f2fs_warn(sbi, "Not support %d, larger than %d",
616 1 << arg, BIO_MAX_PAGES);
ec91538d
JK		 617 return -EINVAL;
618 }
63189b78 619 F2FS_OPTION(sbi).write_io_size_bits = arg;
ec91538d 620 break;
4cb037ec 621#ifdef CONFIG_F2FS_FAULT_INJECTION
73faec4d
JK		 622 case Opt_fault_injection:
623 if (args->from && match_int(args, &arg))
624 return -EINVAL;
d494500a
CY		 625 f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
626 set_opt(sbi, FAULT_INJECTION);
d494500a 627 break;
4cb037ec 628
d494500a
CY		 629 case Opt_fault_type:
630 if (args->from && match_int(args, &arg))
631 return -EINVAL;
d494500a 632 f2fs_build_fault_attr(sbi, 0, arg);
0cc0dec2 633 set_opt(sbi, FAULT_INJECTION);
4cb037ec 634 break;
73faec4d 635#else
4cb037ec 636 case Opt_fault_injection:
dcbb4c10 637 f2fs_info(sbi, "fault_injection options not supported");
73faec4d 638 break;
4cb037ec
CX		 639
640 case Opt_fault_type:
dcbb4c10 641 f2fs_info(sbi, "fault_type options not supported");
4cb037ec
CX		 642 break;
643#endif
6d94c74a 644 case Opt_lazytime:
1751e8a6 645 sb->s_flags |= SB_LAZYTIME;
6d94c74a
JK		 646 break;
647 case Opt_nolazytime:
1751e8a6 648 sb->s_flags &= ~SB_LAZYTIME;
6d94c74a 649 break;
0abd675e 650#ifdef CONFIG_QUOTA
4b2414d0 651 case Opt_quota:
0abd675e
CY		 652 case Opt_usrquota:
653 set_opt(sbi, USRQUOTA);
654 break;
655 case Opt_grpquota:
656 set_opt(sbi, GRPQUOTA);
657 break;
5c57132e
CY		 658 case Opt_prjquota:
659 set_opt(sbi, PRJQUOTA);
660 break;
4b2414d0
CY		 661 case Opt_usrjquota:
662 ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]);
663 if (ret)
664 return ret;
665 break;
666 case Opt_grpjquota:
667 ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]);
668 if (ret)
669 return ret;
670 break;
671 case Opt_prjjquota:
672 ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]);
673 if (ret)
674 return ret;
675 break;
676 case Opt_offusrjquota:
677 ret = f2fs_clear_qf_name(sb, USRQUOTA);
678 if (ret)
679 return ret;
680 break;
681 case Opt_offgrpjquota:
682 ret = f2fs_clear_qf_name(sb, GRPQUOTA);
683 if (ret)
684 return ret;
685 break;
686 case Opt_offprjjquota:
687 ret = f2fs_clear_qf_name(sb, PRJQUOTA);
688 if (ret)
689 return ret;
690 break;
691 case Opt_jqfmt_vfsold:
63189b78 692 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
4b2414d0
CY		 693 break;
694 case Opt_jqfmt_vfsv0:
63189b78 695 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
4b2414d0
CY		 696 break;
697 case Opt_jqfmt_vfsv1:
63189b78 698 F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
4b2414d0
CY		 699 break;
700 case Opt_noquota:
701 clear_opt(sbi, QUOTA);
702 clear_opt(sbi, USRQUOTA);
703 clear_opt(sbi, GRPQUOTA);
704 clear_opt(sbi, PRJQUOTA);
705 break;
0abd675e 706#else
4b2414d0 707 case Opt_quota:
0abd675e
CY		 708 case Opt_usrquota:
709 case Opt_grpquota:
5c57132e 710 case Opt_prjquota:
4b2414d0
CY		 711 case Opt_usrjquota:
712 case Opt_grpjquota:
713 case Opt_prjjquota:
714 case Opt_offusrjquota:
715 case Opt_offgrpjquota:
716 case Opt_offprjjquota:
717 case Opt_jqfmt_vfsold:
718 case Opt_jqfmt_vfsv0:
719 case Opt_jqfmt_vfsv1:
720 case Opt_noquota:
dcbb4c10 721 f2fs_info(sbi, "quota operations not supported");
0abd675e
CY		 722 break;
723#endif
0cdd3195
HL		 724 case Opt_whint:
725 name = match_strdup(&args[0]);
726 if (!name)
727 return -ENOMEM;
728 if (strlen(name) == 10 &&
729 !strncmp(name, "user-based", 10)) {
63189b78 730 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER;
0cdd3195
HL		 731 } else if (strlen(name) == 3 &&
732 !strncmp(name, "off", 3)) {
63189b78 733 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
f2e703f9
HL		 734 } else if (strlen(name) == 8 &&
735 !strncmp(name, "fs-based", 8)) {
63189b78 736 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS;
0cdd3195 737 } else {
5222595d 738 kvfree(name);
0cdd3195
HL		 739 return -EINVAL;
740 }
5222595d 741 kvfree(name);
0cdd3195 742 break;
07939627
JK		 743 case Opt_alloc:
744 name = match_strdup(&args[0]);
745 if (!name)
746 return -ENOMEM;
747
748 if (strlen(name) == 7 &&
749 !strncmp(name, "default", 7)) {
63189b78 750 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
07939627
JK		 751 } else if (strlen(name) == 5 &&
752 !strncmp(name, "reuse", 5)) {
63189b78 753 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
07939627 754 } else {
5222595d 755 kvfree(name);
07939627
JK		 756 return -EINVAL;
757 }
5222595d 758 kvfree(name);
07939627 759 break;
93cf93f1
JZ		 760 case Opt_fsync:
761 name = match_strdup(&args[0]);
762 if (!name)
763 return -ENOMEM;
764 if (strlen(name) == 5 &&
765 !strncmp(name, "posix", 5)) {
63189b78 766 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
93cf93f1
JZ		 767 } else if (strlen(name) == 6 &&
768 !strncmp(name, "strict", 6)) {
63189b78 769 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
d6290814
JK		 770 } else if (strlen(name) == 9 &&
771 !strncmp(name, "nobarrier", 9)) {
772 F2FS_OPTION(sbi).fsync_mode =
773 FSYNC_MODE_NOBARRIER;
93cf93f1 774 } else {
5222595d 775 kvfree(name);
93cf93f1
JZ		 776 return -EINVAL;
777 }
5222595d 778 kvfree(name);
93cf93f1 779 break;
ff62af20 780 case Opt_test_dummy_encryption:
643fa961 781#ifdef CONFIG_FS_ENCRYPTION
7beb01f7 782 if (!f2fs_sb_has_encrypt(sbi)) {
dcbb4c10 783 f2fs_err(sbi, "Encrypt feature is off");
ff62af20
SY		 784 return -EINVAL;
785 }
786
787 F2FS_OPTION(sbi).test_dummy_encryption = true;
dcbb4c10 788 f2fs_info(sbi, "Test dummy encryption mode enabled");
ff62af20 789#else
dcbb4c10 790 f2fs_info(sbi, "Test dummy encryption mount option ignored");
ff62af20
SY		 791#endif
792 break;
4d3aed70
DR		 793 case Opt_checkpoint_disable_cap_perc:
794 if (args->from && match_int(args, &arg))
4354994f 795 return -EINVAL;
4d3aed70
DR		 796 if (arg < 0 || arg > 100)
797 return -EINVAL;
798 if (arg == 100)
799 F2FS_OPTION(sbi).unusable_cap =
800 sbi->user_block_count;
801 else
802 F2FS_OPTION(sbi).unusable_cap =
803 (sbi->user_block_count / 100) * arg;
804 set_opt(sbi, DISABLE_CHECKPOINT);
805 break;
806 case Opt_checkpoint_disable_cap:
807 if (args->from && match_int(args, &arg))
808 return -EINVAL;
809 F2FS_OPTION(sbi).unusable_cap = arg;
810 set_opt(sbi, DISABLE_CHECKPOINT);
811 break;
812 case Opt_checkpoint_disable:
813 set_opt(sbi, DISABLE_CHECKPOINT);
814 break;
815 case Opt_checkpoint_enable:
816 clear_opt(sbi, DISABLE_CHECKPOINT);
4354994f 817 break;
4c8ff709
CY		 818 case Opt_compress_algorithm:
819 if (!f2fs_sb_has_compression(sbi)) {
820 f2fs_err(sbi, "Compression feature if off");
821 return -EINVAL;
822 }
823 name = match_strdup(&args[0]);
824 if (!name)
825 return -ENOMEM;
826 if (strlen(name) == 3 && !strcmp(name, "lzo")) {
827 F2FS_OPTION(sbi).compress_algorithm =
828 COMPRESS_LZO;
829 } else if (strlen(name) == 3 &&
830 !strcmp(name, "lz4")) {
831 F2FS_OPTION(sbi).compress_algorithm =
832 COMPRESS_LZ4;
50cfa66f
CY		 833 } else if (strlen(name) == 4 &&
834 !strcmp(name, "zstd")) {
835 F2FS_OPTION(sbi).compress_algorithm =
836 COMPRESS_ZSTD;
4c8ff709
CY		 837 } else {
838 kfree(name);
839 return -EINVAL;
840 }
841 kfree(name);
842 break;
843 case Opt_compress_log_size:
844 if (!f2fs_sb_has_compression(sbi)) {
845 f2fs_err(sbi, "Compression feature is off");
846 return -EINVAL;
847 }
848 if (args->from && match_int(args, &arg))
849 return -EINVAL;
850 if (arg < MIN_COMPRESS_LOG_SIZE ||
851 arg > MAX_COMPRESS_LOG_SIZE) {
852 f2fs_err(sbi,
853 "Compress cluster log size is out of range");
854 return -EINVAL;
855 }
856 F2FS_OPTION(sbi).compress_log_size = arg;
857 break;
858 case Opt_compress_extension:
859 if (!f2fs_sb_has_compression(sbi)) {
860 f2fs_err(sbi, "Compression feature is off");
861 return -EINVAL;
862 }
863 name = match_strdup(&args[0]);
864 if (!name)
865 return -ENOMEM;
866
867 ext = F2FS_OPTION(sbi).extensions;
868 ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
869
870 if (strlen(name) >= F2FS_EXTENSION_LEN ||
871 ext_cnt >= COMPRESS_EXT_NUM) {
872 f2fs_err(sbi,
873 "invalid extension length/number");
874 kfree(name);
875 return -EINVAL;
876 }
877
878 strcpy(ext[ext_cnt], name);
879 F2FS_OPTION(sbi).compress_ext_cnt++;
880 kfree(name);
881 break;
696c018c 882 default:
dcbb4c10
JP		 883 f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
884 p);
696c018c
NJ		 885 return -EINVAL;
886 }
887 }
4b2414d0
CY		 888#ifdef CONFIG_QUOTA
889 if (f2fs_check_quota_options(sbi))
890 return -EINVAL;
00960c2c 891#else
7beb01f7 892 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 893 f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
00960c2c
SY		 894 return -EINVAL;
895 }
7beb01f7 896 if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
dcbb4c10 897 f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
4ddc1b28
CY		 898 return -EINVAL;
899 }
4b2414d0 900#endif
5aba5430
DR		 901#ifndef CONFIG_UNICODE
902 if (f2fs_sb_has_casefold(sbi)) {
903 f2fs_err(sbi,
904 "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
905 return -EINVAL;
906 }
907#endif
ec91538d 908
b0332a0f 909 if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) {
dcbb4c10
JP		 910 f2fs_err(sbi, "Should set mode=lfs with %uKB-sized IO",
911 F2FS_IO_SIZE_KB(sbi));
ec91538d
JK		 912 return -EINVAL;
913 }
6afc662e
CY		 914
915 if (test_opt(sbi, INLINE_XATTR_SIZE)) {
70db5b04
JK		 916 int min_size, max_size;
917
7beb01f7
CY		 918 if (!f2fs_sb_has_extra_attr(sbi) ||
919 !f2fs_sb_has_flexible_inline_xattr(sbi)) {
dcbb4c10 920 f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
4d817ae0
CY		 921 return -EINVAL;
922 }
6afc662e 923 if (!test_opt(sbi, INLINE_XATTR)) {
dcbb4c10 924 f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
6afc662e
CY		 925 return -EINVAL;
926 }
70db5b04
JK		 927
928 min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32);
dd6c89b5 929 max_size = MAX_INLINE_XATTR_SIZE;
70db5b04
JK		 930
931 if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
932 F2FS_OPTION(sbi).inline_xattr_size > max_size) {
dcbb4c10
JP		 933 f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
934 min_size, max_size);
6afc662e
CY		 935 return -EINVAL;
936 }
937 }
0cdd3195 938
b0332a0f 939 if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) {
dcbb4c10 940 f2fs_err(sbi, "LFS not compatible with checkpoint=disable\n");
4354994f
DR		 941 return -EINVAL;
942 }
943
0cdd3195
HL		 944 /* Not pass down write hints if the number of active logs is lesser
945 * than NR_CURSEG_TYPE.
946 */
63189b78
CY		 947 if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE)
948 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
696c018c
NJ		 949 return 0;
950}
951
aff063e2
JK		 952static struct inode *f2fs_alloc_inode(struct super_block *sb)
953{
954 struct f2fs_inode_info *fi;
955
a0acdfe0 956 fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO);
aff063e2
JK		 957 if (!fi)
958 return NULL;
959
960 init_once((void *) fi);
961
434720fa 962 /* Initialize f2fs-specific inode info */
204706c7 963 atomic_set(&fi->dirty_pages, 0);
d928bfbf 964 init_rwsem(&fi->i_sem);
c10c9820 965 spin_lock_init(&fi->i_size_lock);
2710fd7e 966 INIT_LIST_HEAD(&fi->dirty_list);
0f18b462 967 INIT_LIST_HEAD(&fi->gdirty_list);
57864ae5 968 INIT_LIST_HEAD(&fi->inmem_ilist);
88b88a66
JK		 969 INIT_LIST_HEAD(&fi->inmem_pages);
970 mutex_init(&fi->inmem_lock);
b2532c69
CY		 971 init_rwsem(&fi->i_gc_rwsem[READ]);
972 init_rwsem(&fi->i_gc_rwsem[WRITE]);
5a3a2d83 973 init_rwsem(&fi->i_mmap_sem);
27161f13 974 init_rwsem(&fi->i_xattr_sem);
aff063e2 975
ab9fa662
JK		 976 /* Will be used by directory only */
977 fi->i_dir_level = F2FS_SB(sb)->dir_level;
f2470371 978
aff063e2
JK		 979 return &fi->vfs_inode;
980}
981
531ad7d5
JK		 982static int f2fs_drop_inode(struct inode *inode)
983{
a8933b6b 984 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
b8d96a30 985 int ret;
a8933b6b
CY		 986
987 /*
988 * during filesystem shutdown, if checkpoint is disabled,
989 * drop useless meta/node dirty pages.
990 */
991 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
992 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
993 inode->i_ino == F2FS_META_INO(sbi)) {
994 trace_f2fs_drop_inode(inode, 1);
995 return 1;
996 }
997 }
998
531ad7d5
JK		 999 /*
1000 * This is to avoid a deadlock condition like below.
1001 * writeback_single_inode(inode)
1002 * - f2fs_write_data_page
1003 * - f2fs_gc -> iput -> evict
1004 * - inode_wait_for_writeback(inode)
1005 */
0f18b462 1006 if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) {
06e1bc05 1007 if (!inode->i_nlink && !is_bad_inode(inode)) {
3e72f721
JK		 1008 /* to avoid evict_inode call simultaneously */
1009 atomic_inc(&inode->i_count);
06e1bc05
JK		 1010 spin_unlock(&inode->i_lock);
1011
1012 /* some remained atomic pages should discarded */
1013 if (f2fs_is_atomic_file(inode))
4d57b86d 1014 f2fs_drop_inmem_pages(inode);
06e1bc05 1015
3e72f721
JK		 1016 /* should remain fi->extent_tree for writepage */
1017 f2fs_destroy_extent_node(inode);
1018
06e1bc05 1019 sb_start_intwrite(inode->i_sb);
fc9581c8 1020 f2fs_i_size_write(inode, 0);
06e1bc05 1021
a0770e13 1022 f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
1023 inode, NULL, 0, DATA);
1024 truncate_inode_pages_final(inode->i_mapping);
1025
06e1bc05 1026 if (F2FS_HAS_BLOCKS(inode))
9a449e9c 1027 f2fs_truncate(inode);
06e1bc05
JK		 1028
1029 sb_end_intwrite(inode->i_sb);
1030
06e1bc05 1031 spin_lock(&inode->i_lock);
3e72f721 1032 atomic_dec(&inode->i_count);
06e1bc05 1033 }
b8d96a30 1034 trace_f2fs_drop_inode(inode, 0);
531ad7d5 1035 return 0;
06e1bc05 1036 }
b8d96a30 1037 ret = generic_drop_inode(inode);
8ce589c7
EB		 1038 if (!ret)
1039 ret = fscrypt_drop_inode(inode);
b8d96a30
HP		 1040 trace_f2fs_drop_inode(inode, ret);
1041 return ret;
531ad7d5
JK		 1042}
1043
7c45729a 1044int f2fs_inode_dirtied(struct inode *inode, bool sync)
b3783873 1045{
0f18b462 1046 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7c45729a 1047 int ret = 0;
0f18b462 1048
0f18b462
JK		 1049 spin_lock(&sbi->inode_lock[DIRTY_META]);
1050 if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
7c45729a
JK		 1051 ret = 1;
1052 } else {
1053 set_inode_flag(inode, FI_DIRTY_INODE);
1054 stat_inc_dirty_inode(sbi, DIRTY_META);
0f18b462 1055 }
7c45729a
JK		 1056 if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) {
1057 list_add_tail(&F2FS_I(inode)->gdirty_list,
0f18b462 1058 &sbi->inode_list[DIRTY_META]);
7c45729a
JK		 1059 inc_page_count(sbi, F2FS_DIRTY_IMETA);
1060 }
338bbfa0 1061 spin_unlock(&sbi->inode_lock[DIRTY_META]);
7c45729a 1062 return ret;
0f18b462
JK		 1063}
1064
1065void f2fs_inode_synced(struct inode *inode)
1066{
1067 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1068
1069 spin_lock(&sbi->inode_lock[DIRTY_META]);
1070 if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) {
1071 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1072 return;
1073 }
7c45729a
JK		 1074 if (!list_empty(&F2FS_I(inode)->gdirty_list)) {
1075 list_del_init(&F2FS_I(inode)->gdirty_list);
1076 dec_page_count(sbi, F2FS_DIRTY_IMETA);
1077 }
0f18b462 1078 clear_inode_flag(inode, FI_DIRTY_INODE);
26de9b11 1079 clear_inode_flag(inode, FI_AUTO_RECOVER);
0f18b462 1080 stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META);
338bbfa0 1081 spin_unlock(&sbi->inode_lock[DIRTY_META]);
b3783873
JK		 1082}
1083
b56ab837
JK		 1084/*
1085 * f2fs_dirty_inode() is called from __mark_inode_dirty()
1086 *
1087 * We should call set_dirty_inode to write the dirty inode through write_inode.
1088 */
1089static void f2fs_dirty_inode(struct inode *inode, int flags)
1090{
1091 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1092
1093 if (inode->i_ino == F2FS_NODE_INO(sbi) ||
1094 inode->i_ino == F2FS_META_INO(sbi))
1095 return;
1096
1097 if (flags == I_DIRTY_TIME)
1098 return;
1099
1100 if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
1101 clear_inode_flag(inode, FI_AUTO_RECOVER);
1102
7c45729a 1103 f2fs_inode_dirtied(inode, false);
b56ab837
JK		 1104}
1105
d01718a0 1106static void f2fs_free_inode(struct inode *inode)
aff063e2 1107{
2c58d548 1108 fscrypt_free_inode(inode);
aff063e2
JK		 1109 kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
1110}
1111
523be8a6
JK		 1112static void destroy_percpu_info(struct f2fs_sb_info *sbi)
1113{
41382ec4 1114 percpu_counter_destroy(&sbi->alloc_valid_block_count);
513c5f37 1115 percpu_counter_destroy(&sbi->total_valid_inode_count);
523be8a6
JK		 1116}
1117
3c62be17
JK		 1118static void destroy_device_list(struct f2fs_sb_info *sbi)
1119{
1120 int i;
1121
1122 for (i = 0; i < sbi->s_ndevs; i++) {
1123 blkdev_put(FDEV(i).bdev, FMODE_EXCL);
1124#ifdef CONFIG_BLK_DEV_ZONED
95175daf 1125 kvfree(FDEV(i).blkz_seq);
3c62be17
JK		 1126#endif
1127 }
5222595d 1128 kvfree(sbi->devs);
3c62be17
JK		 1129}
1130
aff063e2
JK		 1131static void f2fs_put_super(struct super_block *sb)
1132{
1133 struct f2fs_sb_info *sbi = F2FS_SB(sb);
a398101a 1134 int i;
cf5c759f 1135 bool dropped;
aff063e2 1136
0abd675e 1137 f2fs_quota_off_umount(sb);
aff063e2 1138
2658e50d
JK		 1139 /* prevent remaining shrinker jobs */
1140 mutex_lock(&sbi->umount_mutex);
1141
85dc2f2c
JK		 1142 /*
1143 * We don't need to do checkpoint when superblock is clean.
1144 * But, the previous checkpoint was not done by umount, it needs to do
1145 * clean checkpoint again.
1146 */
4354994f
DR		 1147 if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
1148 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
75ab4cb8
JK		 1149 struct cp_control cpc = {
1150 .reason = CP_UMOUNT,
1151 };
4d57b86d 1152 f2fs_write_checkpoint(sbi, &cpc);
75ab4cb8 1153 }
aff063e2 1154
4e6a8d9b 1155 /* be sure to wait for any on-going discard commands */
03f2c02d 1156 dropped = f2fs_issue_discard_timeout(sbi);
4e6a8d9b 1157
7d20c8ab
CY		 1158 if ((f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) &&
1159 !sbi->discard_blks && !dropped) {
1f43e2ad
CY		 1160 struct cp_control cpc = {
1161 .reason = CP_UMOUNT | CP_TRIMMED,
1162 };
4d57b86d 1163 f2fs_write_checkpoint(sbi, &cpc);
1f43e2ad
CY		 1164 }
1165
cf779cab
JK		 1166 /*
1167 * normally superblock is clean, so we need to release this.
1168 * In addition, EIO will skip do checkpoint, we need this as well.
1169 */
4d57b86d 1170 f2fs_release_ino_entry(sbi, true);
6f12ac25 1171
2658e50d
JK		 1172 f2fs_leave_shrinker(sbi);
1173 mutex_unlock(&sbi->umount_mutex);
1174
17c19120 1175 /* our cp_error case, we can wait for any writeback page */
b9109b0e 1176 f2fs_flush_merged_writes(sbi);
17c19120 1177
bf22c3cc 1178 f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
50fa53ec
CY		 1179
1180 f2fs_bug_on(sbi, sbi->fsync_node_num);
1181
aff063e2 1182 iput(sbi->node_inode);
7c77bf7d
JK		 1183 sbi->node_inode = NULL;
1184
aff063e2 1185 iput(sbi->meta_inode);
7c77bf7d 1186 sbi->meta_inode = NULL;
aff063e2 1187
60aa4d55
ST		 1188 /*
1189 * iput() can update stat information, if f2fs_write_checkpoint()
1190 * above failed with error.
1191 */
1192 f2fs_destroy_stats(sbi);
1193
aff063e2 1194 /* destroy f2fs internal modules */
4d57b86d
CY		 1195 f2fs_destroy_node_manager(sbi);
1196 f2fs_destroy_segment_manager(sbi);
aff063e2 1197
4c8ff709
CY		 1198 f2fs_destroy_post_read_wq(sbi);
1199
5222595d 1200 kvfree(sbi->ckpt);
a398101a 1201
dc6b2055 1202 f2fs_unregister_sysfs(sbi);
aff063e2
JK		 1203
1204 sb->s_fs_info = NULL;
43b6573b
KM		 1205 if (sbi->s_chksum_driver)
1206 crypto_free_shash(sbi->s_chksum_driver);
5222595d 1207 kvfree(sbi->raw_super);
523be8a6 1208
3c62be17 1209 destroy_device_list(sbi);
a999150f 1210 f2fs_destroy_xattr_caches(sbi);
b6895e8f 1211 mempool_destroy(sbi->write_io_dummy);
4b2414d0
CY		 1212#ifdef CONFIG_QUOTA
1213 for (i = 0; i < MAXQUOTAS; i++)
5222595d 1214 kvfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 1215#endif
523be8a6 1216 destroy_percpu_info(sbi);
a912b54d 1217 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 1218 kvfree(sbi->write_io[i]);
5aba5430
DR		 1219#ifdef CONFIG_UNICODE
1220 utf8_unload(sbi->s_encoding);
1221#endif
5222595d 1222 kvfree(sbi);
aff063e2
JK		 1223}
1224
1225int f2fs_sync_fs(struct super_block *sb, int sync)
1226{
1227 struct f2fs_sb_info *sbi = F2FS_SB(sb);
c34f42e2 1228 int err = 0;
aff063e2 1229
1f227a3e
JK		 1230 if (unlikely(f2fs_cp_error(sbi)))
1231 return 0;
4354994f
DR		 1232 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1233 return 0;
1f227a3e 1234
a2a4a7e4
NJ		 1235 trace_f2fs_sync_fs(sb, sync);
1236
4b2414d0
CY		 1237 if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
1238 return -EAGAIN;
1239
b7473754 1240 if (sync) {
d5053a34
JK		 1241 struct cp_control cpc;
1242
119ee914
JK		 1243 cpc.reason = __get_cp_reason(sbi);
1244
fb24fea7 1245 down_write(&sbi->gc_lock);
4d57b86d 1246 err = f2fs_write_checkpoint(sbi, &cpc);
fb24fea7 1247 up_write(&sbi->gc_lock);
b7473754 1248 }
05ca3632 1249 f2fs_trace_ios(NULL, 1);
aff063e2 1250
c34f42e2 1251 return err;
aff063e2
JK		 1252}
1253
d6212a5f
CL		 1254static int f2fs_freeze(struct super_block *sb)
1255{
77888c1e 1256 if (f2fs_readonly(sb))
d6212a5f
CL		 1257 return 0;
1258
b4b9d34c
JK		 1259 /* IO error happened before */
1260 if (unlikely(f2fs_cp_error(F2FS_SB(sb))))
1261 return -EIO;
1262
1263 /* must be clean, since sync_filesystem() was already called */
1264 if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
1265 return -EINVAL;
1266 return 0;
d6212a5f
CL		 1267}
1268
1269static int f2fs_unfreeze(struct super_block *sb)
1270{
1271 return 0;
1272}
1273
ddc34e32
CY		 1274#ifdef CONFIG_QUOTA
1275static int f2fs_statfs_project(struct super_block *sb,
1276 kprojid_t projid, struct kstatfs *buf)
1277{
1278 struct kqid qid;
1279 struct dquot *dquot;
1280 u64 limit;
1281 u64 curblock;
1282
1283 qid = make_kqid_projid(projid);
1284 dquot = dqget(sb, qid);
1285 if (IS_ERR(dquot))
1286 return PTR_ERR(dquot);
955ac6e5 1287 spin_lock(&dquot->dq_dqb_lock);
ddc34e32 1288
bf2cbd3c
CX		 1289 limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit,
1290 dquot->dq_dqb.dqb_bhardlimit);
acdf2172
CX		 1291 if (limit)
1292 limit >>= sb->s_blocksize_bits;
909110c0 1293
ddc34e32
CY		 1294 if (limit && buf->f_blocks > limit) {
1295 curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits;
1296 buf->f_blocks = limit;
1297 buf->f_bfree = buf->f_bavail =
1298 (buf->f_blocks > curblock) ?
1299 (buf->f_blocks - curblock) : 0;
1300 }
1301
bf2cbd3c
CX		 1302 limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit,
1303 dquot->dq_dqb.dqb_ihardlimit);
909110c0 1304
ddc34e32
CY		 1305 if (limit && buf->f_files > limit) {
1306 buf->f_files = limit;
1307 buf->f_ffree =
1308 (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
1309 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
1310 }
1311
955ac6e5 1312 spin_unlock(&dquot->dq_dqb_lock);
ddc34e32
CY		 1313 dqput(dquot);
1314 return 0;
1315}
1316#endif
1317
aff063e2
JK		 1318static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
1319{
1320 struct super_block *sb = dentry->d_sb;
1321 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1322 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
f66c027e 1323 block_t total_count, user_block_count, start_count;
0cc091d0 1324 u64 avail_node_count;
aff063e2
JK		 1325
1326 total_count = le64_to_cpu(sbi->raw_super->block_count);
1327 user_block_count = sbi->user_block_count;
1328 start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
aff063e2
JK		 1329 buf->f_type = F2FS_SUPER_MAGIC;
1330 buf->f_bsize = sbi->blocksize;
1331
1332 buf->f_blocks = total_count - start_count;
f66c027e 1333 buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
80d42145 1334 sbi->current_reserved_blocks;
c9c8ed50
CY		 1335
1336 spin_lock(&sbi->stat_lock);
4354994f
DR		 1337 if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
1338 buf->f_bfree = 0;
1339 else
1340 buf->f_bfree -= sbi->unusable_block_count;
c9c8ed50 1341 spin_unlock(&sbi->stat_lock);
4354994f 1342
63189b78
CY		 1343 if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
1344 buf->f_bavail = buf->f_bfree -
1345 F2FS_OPTION(sbi).root_reserved_blocks;
7e65be49
JK		 1346 else
1347 buf->f_bavail = 0;
aff063e2 1348
27cae0bc 1349 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
0cc091d0
JK		 1350
1351 if (avail_node_count > user_block_count) {
1352 buf->f_files = user_block_count;
1353 buf->f_ffree = buf->f_bavail;
1354 } else {
1355 buf->f_files = avail_node_count;
1356 buf->f_ffree = min(avail_node_count - valid_node_count(sbi),
1357 buf->f_bavail);
1358 }
aff063e2 1359
5a20d339 1360 buf->f_namelen = F2FS_NAME_LEN;
aff063e2
JK		 1361 buf->f_fsid.val[0] = (u32)id;
1362 buf->f_fsid.val[1] = (u32)(id >> 32);
1363
ddc34e32
CY		 1364#ifdef CONFIG_QUOTA
1365 if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) &&
1366 sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
1367 f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf);
1368 }
1369#endif
aff063e2
JK		 1370 return 0;
1371}
1372
4b2414d0
CY		 1373static inline void f2fs_show_quota_options(struct seq_file *seq,
1374 struct super_block *sb)
1375{
1376#ifdef CONFIG_QUOTA
1377 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1378
63189b78 1379 if (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1380 char *fmtname = "";
1381
63189b78 1382 switch (F2FS_OPTION(sbi).s_jquota_fmt) {
4b2414d0
CY		 1383 case QFMT_VFS_OLD:
1384 fmtname = "vfsold";
1385 break;
1386 case QFMT_VFS_V0:
1387 fmtname = "vfsv0";
1388 break;
1389 case QFMT_VFS_V1:
1390 fmtname = "vfsv1";
1391 break;
1392 }
1393 seq_printf(seq, ",jqfmt=%s", fmtname);
1394 }
1395
63189b78
CY		 1396 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
1397 seq_show_option(seq, "usrjquota",
1398 F2FS_OPTION(sbi).s_qf_names[USRQUOTA]);
4b2414d0 1399
63189b78
CY		 1400 if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
1401 seq_show_option(seq, "grpjquota",
1402 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]);
4b2414d0 1403
63189b78
CY		 1404 if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
1405 seq_show_option(seq, "prjjquota",
1406 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]);
4b2414d0
CY		 1407#endif
1408}
1409
4c8ff709
CY		 1410static inline void f2fs_show_compress_options(struct seq_file *seq,
1411 struct super_block *sb)
1412{
1413 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1414 char *algtype = "";
1415 int i;
1416
1417 if (!f2fs_sb_has_compression(sbi))
1418 return;
1419
1420 switch (F2FS_OPTION(sbi).compress_algorithm) {
1421 case COMPRESS_LZO:
1422 algtype = "lzo";
1423 break;
1424 case COMPRESS_LZ4:
1425 algtype = "lz4";
1426 break;
50cfa66f
CY		 1427 case COMPRESS_ZSTD:
1428 algtype = "zstd";
1429 break;
4c8ff709
CY		 1430 }
1431 seq_printf(seq, ",compress_algorithm=%s", algtype);
1432
1433 seq_printf(seq, ",compress_log_size=%u",
1434 F2FS_OPTION(sbi).compress_log_size);
1435
1436 for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
1437 seq_printf(seq, ",compress_extension=%s",
1438 F2FS_OPTION(sbi).extensions[i]);
1439 }
1440}
1441
aff063e2
JK		 1442static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
1443{
1444 struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
1445
bbbc34fd
CY		 1446 if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
1447 seq_printf(seq, ",background_gc=%s", "sync");
1448 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
1449 seq_printf(seq, ",background_gc=%s", "on");
1450 else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
696c018c 1451 seq_printf(seq, ",background_gc=%s", "off");
bbbc34fd 1452
aff063e2
JK		 1453 if (test_opt(sbi, DISABLE_ROLL_FORWARD))
1454 seq_puts(seq, ",disable_roll_forward");
a9117eca
CY		 1455 if (test_opt(sbi, NORECOVERY))
1456 seq_puts(seq, ",norecovery");
aff063e2
JK		 1457 if (test_opt(sbi, DISCARD))
1458 seq_puts(seq, ",discard");
81621f97
ST		 1459 else
1460 seq_puts(seq, ",nodiscard");
aff063e2 1461 if (test_opt(sbi, NOHEAP))
7a20b8a6
JK		 1462 seq_puts(seq, ",no_heap");
1463 else
1464 seq_puts(seq, ",heap");
aff063e2
JK		 1465#ifdef CONFIG_F2FS_FS_XATTR
1466 if (test_opt(sbi, XATTR_USER))
1467 seq_puts(seq, ",user_xattr");
1468 else
1469 seq_puts(seq, ",nouser_xattr");
444c580f
JK		 1470 if (test_opt(sbi, INLINE_XATTR))
1471 seq_puts(seq, ",inline_xattr");
23cf7212
CY		 1472 else
1473 seq_puts(seq, ",noinline_xattr");
6afc662e
CY		 1474 if (test_opt(sbi, INLINE_XATTR_SIZE))
1475 seq_printf(seq, ",inline_xattr_size=%u",
63189b78 1476 F2FS_OPTION(sbi).inline_xattr_size);
aff063e2
JK		 1477#endif
1478#ifdef CONFIG_F2FS_FS_POSIX_ACL
1479 if (test_opt(sbi, POSIX_ACL))
1480 seq_puts(seq, ",acl");
1481 else
1482 seq_puts(seq, ",noacl");
1483#endif
1484 if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
aa43507f 1485 seq_puts(seq, ",disable_ext_identify");
8274de77
HL		 1486 if (test_opt(sbi, INLINE_DATA))
1487 seq_puts(seq, ",inline_data");
75342797
WL		 1488 else
1489 seq_puts(seq, ",noinline_data");
5efd3c6f
CY		 1490 if (test_opt(sbi, INLINE_DENTRY))
1491 seq_puts(seq, ",inline_dentry");
97c1794a
CY		 1492 else
1493 seq_puts(seq, ",noinline_dentry");
b270ad6f 1494 if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE))
6b4afdd7 1495 seq_puts(seq, ",flush_merge");
0f7b2abd
JK		 1496 if (test_opt(sbi, NOBARRIER))
1497 seq_puts(seq, ",nobarrier");
d5053a34
JK		 1498 if (test_opt(sbi, FASTBOOT))
1499 seq_puts(seq, ",fastboot");
89672159
CY		 1500 if (test_opt(sbi, EXTENT_CACHE))
1501 seq_puts(seq, ",extent_cache");
7daaea25
JK		 1502 else
1503 seq_puts(seq, ",noextent_cache");
343f40f0
CY		 1504 if (test_opt(sbi, DATA_FLUSH))
1505 seq_puts(seq, ",data_flush");
36abef4e
JK		 1506
1507 seq_puts(seq, ",mode=");
b0332a0f 1508 if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
36abef4e 1509 seq_puts(seq, "adaptive");
b0332a0f 1510 else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
36abef4e 1511 seq_puts(seq, "lfs");
63189b78 1512 seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
7e65be49 1513 if (test_opt(sbi, RESERVE_ROOT))
7c2e5963 1514 seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
63189b78
CY		 1515 F2FS_OPTION(sbi).root_reserved_blocks,
1516 from_kuid_munged(&init_user_ns,
1517 F2FS_OPTION(sbi).s_resuid),
1518 from_kgid_munged(&init_user_ns,
1519 F2FS_OPTION(sbi).s_resgid));
ec91538d 1520 if (F2FS_IO_SIZE_BITS(sbi))
c6b1867b
CX		 1521 seq_printf(seq, ",io_bits=%u",
1522 F2FS_OPTION(sbi).write_io_size_bits);
0cc0dec2 1523#ifdef CONFIG_F2FS_FAULT_INJECTION
d494500a 1524 if (test_opt(sbi, FAULT_INJECTION)) {
44529f89 1525 seq_printf(seq, ",fault_injection=%u",
63189b78 1526 F2FS_OPTION(sbi).fault_info.inject_rate);
d494500a
CY		 1527 seq_printf(seq, ",fault_type=%u",
1528 F2FS_OPTION(sbi).fault_info.inject_type);
1529 }
0cc0dec2 1530#endif
0abd675e 1531#ifdef CONFIG_QUOTA
4b2414d0
CY		 1532 if (test_opt(sbi, QUOTA))
1533 seq_puts(seq, ",quota");
0abd675e
CY		 1534 if (test_opt(sbi, USRQUOTA))
1535 seq_puts(seq, ",usrquota");
1536 if (test_opt(sbi, GRPQUOTA))
1537 seq_puts(seq, ",grpquota");
5c57132e
CY		 1538 if (test_opt(sbi, PRJQUOTA))
1539 seq_puts(seq, ",prjquota");
0cc0dec2 1540#endif
4b2414d0 1541 f2fs_show_quota_options(seq, sbi->sb);
63189b78 1542 if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER)
0cdd3195 1543 seq_printf(seq, ",whint_mode=%s", "user-based");
63189b78 1544 else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS)
f2e703f9 1545 seq_printf(seq, ",whint_mode=%s", "fs-based");
643fa961 1546#ifdef CONFIG_FS_ENCRYPTION
ff62af20
SY		 1547 if (F2FS_OPTION(sbi).test_dummy_encryption)
1548 seq_puts(seq, ",test_dummy_encryption");
1549#endif
aff063e2 1550
63189b78 1551 if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
07939627 1552 seq_printf(seq, ",alloc_mode=%s", "default");
63189b78 1553 else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
07939627 1554 seq_printf(seq, ",alloc_mode=%s", "reuse");
93cf93f1 1555
4354994f 1556 if (test_opt(sbi, DISABLE_CHECKPOINT))
4d3aed70
DR		 1557 seq_printf(seq, ",checkpoint=disable:%u",
1558 F2FS_OPTION(sbi).unusable_cap);
63189b78 1559 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
93cf93f1 1560 seq_printf(seq, ",fsync_mode=%s", "posix");
63189b78 1561 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
93cf93f1 1562 seq_printf(seq, ",fsync_mode=%s", "strict");
dc132802
ST		 1563 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
1564 seq_printf(seq, ",fsync_mode=%s", "nobarrier");
4c8ff709
CY		 1565
1566 f2fs_show_compress_options(seq, sbi->sb);
aff063e2
JK		 1567 return 0;
1568}
1569
498c5e9f
YH		 1570static void default_options(struct f2fs_sb_info *sbi)
1571{
1572 /* init some FS parameters */
63189b78
CY		 1573 F2FS_OPTION(sbi).active_logs = NR_CURSEG_TYPE;
1574 F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
1575 F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
1576 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
1577 F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
ff62af20 1578 F2FS_OPTION(sbi).test_dummy_encryption = false;
0aa7e0f8
CY		 1579 F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
1580 F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
91faa534 1581 F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
4c8ff709
CY		 1582 F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
1583 F2FS_OPTION(sbi).compress_ext_cnt = 0;
bbbc34fd 1584 F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
498c5e9f 1585
39133a50 1586 set_opt(sbi, INLINE_XATTR);
498c5e9f 1587 set_opt(sbi, INLINE_DATA);
97c1794a 1588 set_opt(sbi, INLINE_DENTRY);
3e72f721 1589 set_opt(sbi, EXTENT_CACHE);
7a20b8a6 1590 set_opt(sbi, NOHEAP);
4354994f 1591 clear_opt(sbi, DISABLE_CHECKPOINT);
4d3aed70 1592 F2FS_OPTION(sbi).unusable_cap = 0;
1751e8a6 1593 sbi->sb->s_flags |= SB_LAZYTIME;
69e9e427 1594 set_opt(sbi, FLUSH_MERGE);
7d20c8ab 1595 set_opt(sbi, DISCARD);
7beb01f7 1596 if (f2fs_sb_has_blkzoned(sbi))
b0332a0f 1597 F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
a39e5365 1598 else
b0332a0f 1599 F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
498c5e9f
YH		 1600
1601#ifdef CONFIG_F2FS_FS_XATTR
1602 set_opt(sbi, XATTR_USER);
1603#endif
1604#ifdef CONFIG_F2FS_FS_POSIX_ACL
1605 set_opt(sbi, POSIX_ACL);
1606#endif
36dbd328 1607
d494500a 1608 f2fs_build_fault_attr(sbi, 0, 0);
498c5e9f
YH		 1609}
1610
ea676733
JK		 1611#ifdef CONFIG_QUOTA
1612static int f2fs_enable_quotas(struct super_block *sb);
1613#endif
4354994f
DR		 1614
1615static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
1616{
812a9597 1617 unsigned int s_flags = sbi->sb->s_flags;
4354994f 1618 struct cp_control cpc;
812a9597
JK		 1619 int err = 0;
1620 int ret;
4d3aed70 1621 block_t unusable;
4354994f 1622
812a9597 1623 if (s_flags & SB_RDONLY) {
dcbb4c10 1624 f2fs_err(sbi, "checkpoint=disable on readonly fs");
812a9597
JK		 1625 return -EINVAL;
1626 }
4354994f
DR		 1627 sbi->sb->s_flags |= SB_ACTIVE;
1628
4354994f
DR		 1629 f2fs_update_time(sbi, DISABLE_TIME);
1630
1631 while (!f2fs_time_over(sbi, DISABLE_TIME)) {
fb24fea7 1632 down_write(&sbi->gc_lock);
4354994f 1633 err = f2fs_gc(sbi, true, false, NULL_SEGNO);
812a9597
JK		 1634 if (err == -ENODATA) {
1635 err = 0;
4354994f 1636 break;
812a9597 1637 }
8f31b466 1638 if (err && err != -EAGAIN)
812a9597 1639 break;
4354994f 1640 }
4354994f 1641
812a9597
JK		 1642 ret = sync_filesystem(sbi->sb);
1643 if (ret || err) {
1644 err = ret ? ret: err;
1645 goto restore_flag;
1646 }
4354994f 1647
4d3aed70
DR		 1648 unusable = f2fs_get_unusable_blocks(sbi);
1649 if (f2fs_disable_cp_again(sbi, unusable)) {
812a9597
JK		 1650 err = -EAGAIN;
1651 goto restore_flag;
1652 }
4354994f 1653
fb24fea7 1654 down_write(&sbi->gc_lock);
4354994f
DR		 1655 cpc.reason = CP_PAUSE;
1656 set_sbi_flag(sbi, SBI_CP_DISABLED);
896285ad
CY		 1657 err = f2fs_write_checkpoint(sbi, &cpc);
1658 if (err)
1659 goto out_unlock;
4354994f 1660
c9c8ed50 1661 spin_lock(&sbi->stat_lock);
4d3aed70 1662 sbi->unusable_block_count = unusable;
c9c8ed50
CY		 1663 spin_unlock(&sbi->stat_lock);
1664
896285ad 1665out_unlock:
fb24fea7 1666 up_write(&sbi->gc_lock);
812a9597 1667restore_flag:
7a88ddb5 1668 sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
812a9597 1669 return err;
4354994f
DR		 1670}
1671
1672static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
1673{
fb24fea7 1674 down_write(&sbi->gc_lock);
4354994f
DR		 1675 f2fs_dirty_to_prefree(sbi);
1676
1677 clear_sbi_flag(sbi, SBI_CP_DISABLED);
1678 set_sbi_flag(sbi, SBI_IS_DIRTY);
fb24fea7 1679 up_write(&sbi->gc_lock);
4354994f
DR		 1680
1681 f2fs_sync_fs(sbi->sb, 1);
1682}
1683
696c018c
NJ		 1684static int f2fs_remount(struct super_block *sb, int *flags, char *data)
1685{
1686 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1687 struct f2fs_mount_info org_mount_opt;
0abd675e 1688 unsigned long old_sb_flags;
63189b78 1689 int err;
876dc59e
GZ		 1690 bool need_restart_gc = false;
1691 bool need_stop_gc = false;
9cd81ce3 1692 bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
4354994f 1693 bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT);
1f78adfa 1694 bool no_io_align = !F2FS_IO_ALIGNED(sbi);
4354994f 1695 bool checkpoint_changed;
4b2414d0 1696#ifdef CONFIG_QUOTA
4b2414d0
CY		 1697 int i, j;
1698#endif
696c018c
NJ		 1699
1700 /*
1701 * Save the old mount options in case we
1702 * need to restore them.
1703 */
1704 org_mount_opt = sbi->mount_opt;
0abd675e 1705 old_sb_flags = sb->s_flags;
696c018c 1706
4b2414d0 1707#ifdef CONFIG_QUOTA
63189b78 1708 org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt;
4b2414d0 1709 for (i = 0; i < MAXQUOTAS; i++) {
63189b78
CY		 1710 if (F2FS_OPTION(sbi).s_qf_names[i]) {
1711 org_mount_opt.s_qf_names[i] =
1712 kstrdup(F2FS_OPTION(sbi).s_qf_names[i],
1713 GFP_KERNEL);
1714 if (!org_mount_opt.s_qf_names[i]) {
4b2414d0 1715 for (j = 0; j < i; j++)
5222595d 1716 kvfree(org_mount_opt.s_qf_names[j]);
4b2414d0
CY		 1717 return -ENOMEM;
1718 }
1719 } else {
63189b78 1720 org_mount_opt.s_qf_names[i] = NULL;
4b2414d0
CY		 1721 }
1722 }
1723#endif
1724
df728b0f 1725 /* recover superblocks we couldn't write due to previous RO mount */
1751e8a6 1726 if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
df728b0f 1727 err = f2fs_commit_super(sbi, false);
dcbb4c10
JP		 1728 f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
1729 err);
df728b0f
JK		 1730 if (!err)
1731 clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
1732 }
1733
498c5e9f 1734 default_options(sbi);
26666c8a 1735
696c018c
NJ		 1736 /* parse mount options */
1737 err = parse_options(sb, data);
1738 if (err)
1739 goto restore_opts;
4354994f
DR		 1740 checkpoint_changed =
1741 disable_checkpoint != test_opt(sbi, DISABLE_CHECKPOINT);
696c018c
NJ		 1742
1743 /*
1744 * Previous and new state of filesystem is RO,
876dc59e 1745 * so skip checking GC and FLUSH_MERGE conditions.
696c018c 1746 */
1751e8a6 1747 if (f2fs_readonly(sb) && (*flags & SB_RDONLY))
696c018c
NJ		 1748 goto skip;
1749
ea676733 1750#ifdef CONFIG_QUOTA
1751e8a6 1751 if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) {
0abd675e
CY		 1752 err = dquot_suspend(sb, -1);
1753 if (err < 0)
1754 goto restore_opts;
4354994f 1755 } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
0abd675e 1756 /* dquot_resume needs RW */
1751e8a6 1757 sb->s_flags &= ~SB_RDONLY;
ea676733
JK		 1758 if (sb_any_quota_suspended(sb)) {
1759 dquot_resume(sb, -1);
7beb01f7 1760 } else if (f2fs_sb_has_quota_ino(sbi)) {
ea676733
JK		 1761 err = f2fs_enable_quotas(sb);
1762 if (err)
1763 goto restore_opts;
1764 }
0abd675e 1765 }
ea676733 1766#endif
9cd81ce3
CY		 1767 /* disallow enable/disable extent_cache dynamically */
1768 if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) {
1769 err = -EINVAL;
dcbb4c10 1770 f2fs_warn(sbi, "switch extent_cache option is not allowed");
9cd81ce3
CY		 1771 goto restore_opts;
1772 }
1773
1f78adfa
CY		 1774 if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
1775 err = -EINVAL;
1776 f2fs_warn(sbi, "switch io_bits option is not allowed");
1777 goto restore_opts;
1778 }
1779
4354994f
DR		 1780 if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
1781 err = -EINVAL;
dcbb4c10 1782 f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
4354994f
DR		 1783 goto restore_opts;
1784 }
1785
696c018c
NJ		 1786 /*
1787 * We stop the GC thread if FS is mounted as RO
1788 * or if background_gc = off is passed in mount
1789 * option. Also sync the filesystem.
1790 */
bbbc34fd
CY		 1791 if ((*flags & SB_RDONLY) ||
1792 F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF) {
696c018c 1793 if (sbi->gc_thread) {
4d57b86d 1794 f2fs_stop_gc_thread(sbi);
876dc59e 1795 need_restart_gc = true;
696c018c 1796 }
aba291b3 1797 } else if (!sbi->gc_thread) {
4d57b86d 1798 err = f2fs_start_gc_thread(sbi);
696c018c
NJ		 1799 if (err)
1800 goto restore_opts;
876dc59e
GZ		 1801 need_stop_gc = true;
1802 }
1803
63189b78
CY		 1804 if (*flags & SB_RDONLY ||
1805 F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) {
faa0e55b
JK		 1806 writeback_inodes_sb(sb, WB_REASON_SYNC);
1807 sync_inodes_sb(sb);
1808
1809 set_sbi_flag(sbi, SBI_IS_DIRTY);
1810 set_sbi_flag(sbi, SBI_IS_CLOSE);
1811 f2fs_sync_fs(sb, 1);
1812 clear_sbi_flag(sbi, SBI_IS_CLOSE);
1813 }
1814
4354994f
DR		 1815 if (checkpoint_changed) {
1816 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
1817 err = f2fs_disable_checkpoint(sbi);
1818 if (err)
1819 goto restore_gc;
1820 } else {
1821 f2fs_enable_checkpoint(sbi);
1822 }
1823 }
1824
876dc59e
GZ		 1825 /*
1826 * We stop issue flush thread if FS is mounted as RO
1827 * or if flush_merge is not passed in mount option.
1828 */
1751e8a6 1829 if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) {
5eba8c5d 1830 clear_opt(sbi, FLUSH_MERGE);
4d57b86d 1831 f2fs_destroy_flush_cmd_control(sbi, false);
5eba8c5d 1832 } else {
4d57b86d 1833 err = f2fs_create_flush_cmd_control(sbi);
2163d198 1834 if (err)
a688b9d9 1835 goto restore_gc;
696c018c
NJ		 1836 }
1837skip:
4b2414d0
CY		 1838#ifdef CONFIG_QUOTA
1839 /* Release old quota file names */
1840 for (i = 0; i < MAXQUOTAS; i++)
5222595d 1841 kvfree(org_mount_opt.s_qf_names[i]);
4b2414d0 1842#endif
696c018c 1843 /* Update the POSIXACL Flag */
1751e8a6
LT		 1844 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
1845 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
df728b0f 1846
7e65be49 1847 limit_reserve_root(sbi);
095680f2 1848 *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
696c018c 1849 return 0;
876dc59e
GZ		 1850restore_gc:
1851 if (need_restart_gc) {
4d57b86d 1852 if (f2fs_start_gc_thread(sbi))
dcbb4c10 1853 f2fs_warn(sbi, "background gc thread has stopped");
876dc59e 1854 } else if (need_stop_gc) {
4d57b86d 1855 f2fs_stop_gc_thread(sbi);
876dc59e 1856 }
696c018c 1857restore_opts:
4b2414d0 1858#ifdef CONFIG_QUOTA
63189b78 1859 F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
4b2414d0 1860 for (i = 0; i < MAXQUOTAS; i++) {
5222595d 1861 kvfree(F2FS_OPTION(sbi).s_qf_names[i]);
63189b78 1862 F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
4b2414d0
CY		 1863 }
1864#endif
696c018c 1865 sbi->mount_opt = org_mount_opt;
0abd675e 1866 sb->s_flags = old_sb_flags;
696c018c
NJ		 1867 return err;
1868}
1869
0abd675e
CY		 1870#ifdef CONFIG_QUOTA
1871/* Read data from quotafile */
1872static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
1873 size_t len, loff_t off)
1874{
1875 struct inode *inode = sb_dqopt(sb)->files[type];
1876 struct address_space *mapping = inode->i_mapping;
1877 block_t blkidx = F2FS_BYTES_TO_BLK(off);
1878 int offset = off & (sb->s_blocksize - 1);
1879 int tocopy;
1880 size_t toread;
1881 loff_t i_size = i_size_read(inode);
1882 struct page *page;
1883 char *kaddr;
1884
1885 if (off > i_size)
1886 return 0;
1887
1888 if (off + len > i_size)
1889 len = i_size - off;
1890 toread = len;
1891 while (toread > 0) {
1892 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
1893repeat:
02117b8a 1894 page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
4e46a023
JK		 1895 if (IS_ERR(page)) {
1896 if (PTR_ERR(page) == -ENOMEM) {
5df7731f
CY		 1897 congestion_wait(BLK_RW_ASYNC,
1898 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 1899 goto repeat;
1900 }
af033b2a 1901 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 1902 return PTR_ERR(page);
4e46a023 1903 }
0abd675e
CY		 1904
1905 lock_page(page);
1906
1907 if (unlikely(page->mapping != mapping)) {
1908 f2fs_put_page(page, 1);
1909 goto repeat;
1910 }
1911 if (unlikely(!PageUptodate(page))) {
1912 f2fs_put_page(page, 1);
af033b2a 1913 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e
CY		 1914 return -EIO;
1915 }
1916
1917 kaddr = kmap_atomic(page);
1918 memcpy(data, kaddr + offset, tocopy);
1919 kunmap_atomic(kaddr);
1920 f2fs_put_page(page, 1);
1921
1922 offset = 0;
1923 toread -= tocopy;
1924 data += tocopy;
1925 blkidx++;
1926 }
1927 return len;
1928}
1929
1930/* Write to quotafile */
1931static ssize_t f2fs_quota_write(struct super_block *sb, int type,
1932 const char *data, size_t len, loff_t off)
1933{
1934 struct inode *inode = sb_dqopt(sb)->files[type];
1935 struct address_space *mapping = inode->i_mapping;
1936 const struct address_space_operations *a_ops = mapping->a_ops;
1937 int offset = off & (sb->s_blocksize - 1);
1938 size_t towrite = len;
1939 struct page *page;
62f63eea 1940 void *fsdata = NULL;
0abd675e
CY		 1941 char *kaddr;
1942 int err = 0;
1943 int tocopy;
1944
1945 while (towrite > 0) {
1946 tocopy = min_t(unsigned long, sb->s_blocksize - offset,
1947 towrite);
4e46a023 1948retry:
0abd675e 1949 err = a_ops->write_begin(NULL, mapping, off, tocopy, 0,
62f63eea 1950 &page, &fsdata);
4e46a023
JK		 1951 if (unlikely(err)) {
1952 if (err == -ENOMEM) {
5df7731f
CY		 1953 congestion_wait(BLK_RW_ASYNC,
1954 DEFAULT_IO_TIMEOUT);
4e46a023
JK		 1955 goto retry;
1956 }
af033b2a 1957 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e 1958 break;
4e46a023 1959 }
0abd675e
CY		 1960
1961 kaddr = kmap_atomic(page);
1962 memcpy(kaddr + offset, data, tocopy);
1963 kunmap_atomic(kaddr);
1964 flush_dcache_page(page);
1965
1966 a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
62f63eea 1967 page, fsdata);
0abd675e
CY		 1968 offset = 0;
1969 towrite -= tocopy;
1970 off += tocopy;
1971 data += tocopy;
1972 cond_resched();
1973 }
1974
1975 if (len == towrite)
6e5b5d41 1976 return err;
0abd675e
CY		 1977 inode->i_mtime = inode->i_ctime = current_time(inode);
1978 f2fs_mark_inode_dirty_sync(inode, false);
1979 return len - towrite;
1980}
1981
1982static struct dquot **f2fs_get_dquots(struct inode *inode)
1983{
1984 return F2FS_I(inode)->i_dquot;
1985}
1986
1987static qsize_t *f2fs_get_reserved_space(struct inode *inode)
1988{
1989 return &F2FS_I(inode)->i_reserved_quota;
1990}
1991
4b2414d0
CY		 1992static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
1993{
af033b2a 1994 if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 1995 f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
af033b2a
CY		 1996 return 0;
1997 }
1998
63189b78
CY		 1999 return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
2000 F2FS_OPTION(sbi).s_jquota_fmt, type);
4b2414d0
CY		 2001}
2002
ea676733 2003int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
4b2414d0 2004{
ea676733
JK		 2005 int enabled = 0;
2006 int i, err;
2007
7beb01f7 2008 if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
ea676733
JK		 2009 err = f2fs_enable_quotas(sbi->sb);
2010 if (err) {
dcbb4c10 2011 f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
ea676733
JK		 2012 return 0;
2013 }
2014 return 1;
2015 }
4b2414d0
CY		 2016
2017 for (i = 0; i < MAXQUOTAS; i++) {
63189b78 2018 if (F2FS_OPTION(sbi).s_qf_names[i]) {
ea676733
JK		 2019 err = f2fs_quota_on_mount(sbi, i);
2020 if (!err) {
2021 enabled = 1;
2022 continue;
2023 }
dcbb4c10
JP		 2024 f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
2025 err, i);
4b2414d0
CY		 2026 }
2027 }
ea676733
JK		 2028 return enabled;
2029}
2030
2031static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
2032 unsigned int flags)
2033{
2034 struct inode *qf_inode;
2035 unsigned long qf_inum;
2036 int err;
2037
7beb01f7 2038 BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
ea676733
JK		 2039
2040 qf_inum = f2fs_qf_ino(sb, type);
2041 if (!qf_inum)
2042 return -EPERM;
2043
2044 qf_inode = f2fs_iget(sb, qf_inum);
2045 if (IS_ERR(qf_inode)) {
dcbb4c10 2046 f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
ea676733
JK		 2047 return PTR_ERR(qf_inode);
2048 }
2049
2050 /* Don't account quota for quota files to avoid recursion */
2051 qf_inode->i_flags |= S_NOQUOTA;
7212b95e 2052 err = dquot_load_quota_inode(qf_inode, type, format_id, flags);
ea676733
JK		 2053 iput(qf_inode);
2054 return err;
2055}
2056
2057static int f2fs_enable_quotas(struct super_block *sb)
2058{
dcbb4c10 2059 struct f2fs_sb_info *sbi = F2FS_SB(sb);
ea676733
JK		 2060 int type, err = 0;
2061 unsigned long qf_inum;
2062 bool quota_mopt[MAXQUOTAS] = {
dcbb4c10
JP		 2063 test_opt(sbi, USRQUOTA),
2064 test_opt(sbi, GRPQUOTA),
2065 test_opt(sbi, PRJQUOTA),
ea676733
JK		 2066 };
2067
af033b2a 2068 if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
dcbb4c10 2069 f2fs_err(sbi, "quota file may be corrupted, skip loading it");
af033b2a
CY		 2070 return 0;
2071 }
2072
2073 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
2074
ea676733
JK		 2075 for (type = 0; type < MAXQUOTAS; type++) {
2076 qf_inum = f2fs_qf_ino(sb, type);
2077 if (qf_inum) {
2078 err = f2fs_quota_enable(sb, type, QFMT_VFS_V1,
2079 DQUOT_USAGE_ENABLED |
2080 (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
2081 if (err) {
dcbb4c10
JP		 2082 f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
2083 type, err);
ea676733
JK		 2084 for (type--; type >= 0; type--)
2085 dquot_quota_off(sb, type);
af033b2a
CY		 2086 set_sbi_flag(F2FS_SB(sb),
2087 SBI_QUOTA_NEED_REPAIR);
ea676733
JK		 2088 return err;
2089 }
4b2414d0
CY		 2090 }
2091 }
ea676733 2092 return 0;
4b2414d0
CY		 2093}
2094
af033b2a 2095int f2fs_quota_sync(struct super_block *sb, int type)
0abd675e 2096{
af033b2a 2097 struct f2fs_sb_info *sbi = F2FS_SB(sb);
0abd675e
CY		 2098 struct quota_info *dqopt = sb_dqopt(sb);
2099 int cnt;
2100 int ret;
2101
db6ec53b
JK		 2102 /*
2103 * do_quotactl
2104 * f2fs_quota_sync
2105 * down_read(quota_sem)
2106 * dquot_writeback_dquots()
2107 * f2fs_dquot_commit
2108 * block_operation
2109 * down_read(quota_sem)
2110 */
2111 f2fs_lock_op(sbi);
2112
2113 down_read(&sbi->quota_sem);
0abd675e
CY		 2114 ret = dquot_writeback_dquots(sb, type);
2115 if (ret)
af033b2a 2116 goto out;
0abd675e
CY		 2117
2118 /*
2119 * Now when everything is written we can discard the pagecache so
2120 * that userspace sees the changes.
2121 */
2122 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
af033b2a
CY		 2123 struct address_space *mapping;
2124
0abd675e
CY		 2125 if (type != -1 && cnt != type)
2126 continue;
2127 if (!sb_has_quota_active(sb, cnt))
2128 continue;
2129
af033b2a
CY		 2130 mapping = dqopt->files[cnt]->i_mapping;
2131
2132 ret = filemap_fdatawrite(mapping);
0abd675e 2133 if (ret)
af033b2a
CY		 2134 goto out;
2135
2136 /* if we are using journalled quota */
2137 if (is_journalled_quota(sbi))
2138 continue;
2139
2140 ret = filemap_fdatawait(mapping);
2141 if (ret)
2142 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
0abd675e
CY		 2143
2144 inode_lock(dqopt->files[cnt]);
2145 truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
2146 inode_unlock(dqopt->files[cnt]);
2147 }
af033b2a
CY		 2148out:
2149 if (ret)
2150 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
db6ec53b
JK		 2151 up_read(&sbi->quota_sem);
2152 f2fs_unlock_op(sbi);
af033b2a 2153 return ret;
0abd675e
CY		 2154}
2155
2156static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
2157 const struct path *path)
2158{
2159 struct inode *inode;
2160 int err;
2161
fe973b06
CY		 2162 /* if quota sysfile exists, deny enabling quota with specific file */
2163 if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
2164 f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
2165 return -EBUSY;
2166 }
2167
9a20d391 2168 err = f2fs_quota_sync(sb, type);
0abd675e
CY		 2169 if (err)
2170 return err;
2171
2172 err = dquot_quota_on(sb, type, format_id, path);
2173 if (err)
2174 return err;
2175
2176 inode = d_inode(path->dentry);
2177
2178 inode_lock(inode);
59c84408 2179 F2FS_I(inode)->i_flags |= F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL;
9149a5eb 2180 f2fs_set_inode_flags(inode);
0abd675e
CY		 2181 inode_unlock(inode);
2182 f2fs_mark_inode_dirty_sync(inode, false);
2183
2184 return 0;
2185}
2186
fe973b06 2187static int __f2fs_quota_off(struct super_block *sb, int type)
0abd675e
CY		 2188{
2189 struct inode *inode = sb_dqopt(sb)->files[type];
2190 int err;
2191
2192 if (!inode || !igrab(inode))
2193 return dquot_quota_off(sb, type);
2194
cda9cc59
YH		 2195 err = f2fs_quota_sync(sb, type);
2196 if (err)
2197 goto out_put;
0abd675e
CY		 2198
2199 err = dquot_quota_off(sb, type);
7beb01f7 2200 if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
0abd675e
CY		 2201 goto out_put;
2202
2203 inode_lock(inode);
59c84408 2204 F2FS_I(inode)->i_flags &= ~(F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL);
9149a5eb 2205 f2fs_set_inode_flags(inode);
0abd675e
CY		 2206 inode_unlock(inode);
2207 f2fs_mark_inode_dirty_sync(inode, false);
2208out_put:
2209 iput(inode);
2210 return err;
2211}
2212
fe973b06
CY		 2213static int f2fs_quota_off(struct super_block *sb, int type)
2214{
2215 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2216 int err;
2217
2218 err = __f2fs_quota_off(sb, type);
2219
2220 /*
2221 * quotactl can shutdown journalled quota, result in inconsistence
2222 * between quota record and fs data by following updates, tag the
2223 * flag to let fsck be aware of it.
2224 */
2225 if (is_journalled_quota(sbi))
2226 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2227 return err;
2228}
2229
4b2414d0 2230void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2231{
2232 int type;
cda9cc59
YH		 2233 int err;
2234
2235 for (type = 0; type < MAXQUOTAS; type++) {
fe973b06 2236 err = __f2fs_quota_off(sb, type);
cda9cc59
YH		 2237 if (err) {
2238 int ret = dquot_quota_off(sb, type);
0abd675e 2239
dcbb4c10
JP		 2240 f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
2241 type, err, ret);
af033b2a 2242 set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
cda9cc59
YH		 2243 }
2244 }
0e0667b6
JK		 2245 /*
2246 * In case of checkpoint=disable, we must flush quota blocks.
2247 * This can cause NULL exception for node_inode in end_io, since
2248 * put_super already dropped it.
2249 */
2250 sync_filesystem(sb);
0abd675e
CY		 2251}
2252
26b5a079
SY		 2253static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
2254{
2255 struct quota_info *dqopt = sb_dqopt(sb);
2256 int type;
2257
2258 for (type = 0; type < MAXQUOTAS; type++) {
2259 if (!dqopt->files[type])
2260 continue;
2261 f2fs_inode_synced(dqopt->files[type]);
2262 }
2263}
2264
af033b2a
CY		 2265static int f2fs_dquot_commit(struct dquot *dquot)
2266{
db6ec53b 2267 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2268 int ret;
2269
2c4e0c52 2270 down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
af033b2a
CY		 2271 ret = dquot_commit(dquot);
2272 if (ret < 0)
db6ec53b
JK		 2273 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2274 up_read(&sbi->quota_sem);
af033b2a
CY		 2275 return ret;
2276}
2277
2278static int f2fs_dquot_acquire(struct dquot *dquot)
2279{
db6ec53b 2280 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
af033b2a
CY		 2281 int ret;
2282
db6ec53b 2283 down_read(&sbi->quota_sem);
af033b2a
CY		 2284 ret = dquot_acquire(dquot);
2285 if (ret < 0)
db6ec53b
JK		 2286 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2287 up_read(&sbi->quota_sem);
af033b2a
CY		 2288 return ret;
2289}
2290
2291static int f2fs_dquot_release(struct dquot *dquot)
2292{
db6ec53b 2293 struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
2c4e0c52 2294 int ret = dquot_release(dquot);
af033b2a 2295
af033b2a 2296 if (ret < 0)
db6ec53b 2297 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2298 return ret;
2299}
2300
2301static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
2302{
2303 struct super_block *sb = dquot->dq_sb;
2304 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2305 int ret = dquot_mark_dquot_dirty(dquot);
af033b2a
CY		 2306
2307 /* if we are using journalled quota */
2308 if (is_journalled_quota(sbi))
2309 set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
2310
2311 return ret;
2312}
2313
2314static int f2fs_dquot_commit_info(struct super_block *sb, int type)
2315{
db6ec53b 2316 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2c4e0c52 2317 int ret = dquot_commit_info(sb, type);
af033b2a 2318
af033b2a 2319 if (ret < 0)
db6ec53b 2320 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
af033b2a
CY		 2321 return ret;
2322}
26b5a079 2323
94b1e10e 2324static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
5c57132e
CY		 2325{
2326 *projid = F2FS_I(inode)->i_projid;
2327 return 0;
2328}
2329
0abd675e
CY		 2330static const struct dquot_operations f2fs_quota_operations = {
2331 .get_reserved_space = f2fs_get_reserved_space,
af033b2a
CY		 2332 .write_dquot = f2fs_dquot_commit,
2333 .acquire_dquot = f2fs_dquot_acquire,
2334 .release_dquot = f2fs_dquot_release,
2335 .mark_dirty = f2fs_dquot_mark_dquot_dirty,
2336 .write_info = f2fs_dquot_commit_info,
0abd675e
CY		 2337 .alloc_dquot = dquot_alloc,
2338 .destroy_dquot = dquot_destroy,
5c57132e 2339 .get_projid = f2fs_get_projid,
0abd675e
CY		 2340 .get_next_id = dquot_get_next_id,
2341};
2342
2343static const struct quotactl_ops f2fs_quotactl_ops = {
2344 .quota_on = f2fs_quota_on,
2345 .quota_off = f2fs_quota_off,
2346 .quota_sync = f2fs_quota_sync,
2347 .get_state = dquot_get_state,
2348 .set_info = dquot_set_dqinfo,
2349 .get_dqblk = dquot_get_dqblk,
2350 .set_dqblk = dquot_set_dqblk,
2351 .get_nextdqblk = dquot_get_next_dqblk,
2352};
2353#else
af033b2a
CY		 2354int f2fs_quota_sync(struct super_block *sb, int type)
2355{
2356 return 0;
2357}
2358
4b2414d0 2359void f2fs_quota_off_umount(struct super_block *sb)
0abd675e
CY		 2360{
2361}
2362#endif
2363
f62fc9f9 2364static const struct super_operations f2fs_sops = {
aff063e2 2365 .alloc_inode = f2fs_alloc_inode,
d01718a0 2366 .free_inode = f2fs_free_inode,
531ad7d5 2367 .drop_inode = f2fs_drop_inode,
aff063e2 2368 .write_inode = f2fs_write_inode,
b3783873 2369 .dirty_inode = f2fs_dirty_inode,
aff063e2 2370 .show_options = f2fs_show_options,
0abd675e
CY		 2371#ifdef CONFIG_QUOTA
2372 .quota_read = f2fs_quota_read,
2373 .quota_write = f2fs_quota_write,
2374 .get_dquots = f2fs_get_dquots,
2375#endif
aff063e2
JK		 2376 .evict_inode = f2fs_evict_inode,
2377 .put_super = f2fs_put_super,
2378 .sync_fs = f2fs_sync_fs,
d6212a5f
CL		 2379 .freeze_fs = f2fs_freeze,
2380 .unfreeze_fs = f2fs_unfreeze,
aff063e2 2381 .statfs = f2fs_statfs,
696c018c 2382 .remount_fs = f2fs_remount,
aff063e2
JK		 2383};
2384
643fa961 2385#ifdef CONFIG_FS_ENCRYPTION
0b81d077
JK		 2386static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
2387{
2388 return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2389 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2390 ctx, len, NULL);
2391}
2392
2393static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
2394 void *fs_data)
2395{
b7c409de
SY		 2396 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2397
2398 /*
2399 * Encrypting the root directory is not allowed because fsck
2400 * expects lost+found directory to exist and remain unencrypted
2401 * if LOST_FOUND feature is enabled.
2402 *
2403 */
7beb01f7 2404 if (f2fs_sb_has_lost_found(sbi) &&
b7c409de
SY		 2405 inode->i_ino == F2FS_ROOT_INO(sbi))
2406 return -EPERM;
2407
0b81d077
JK		 2408 return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
2409 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
2410 ctx, len, fs_data, XATTR_CREATE);
2411}
2412
ff62af20
SY		 2413static bool f2fs_dummy_context(struct inode *inode)
2414{
2415 return DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(inode));
2416}
2417
0eee17e3
EB		 2418static bool f2fs_has_stable_inodes(struct super_block *sb)
2419{
2420 return true;
2421}
2422
2423static void f2fs_get_ino_and_lblk_bits(struct super_block *sb,
2424 int *ino_bits_ret, int *lblk_bits_ret)
2425{
2426 *ino_bits_ret = 8 * sizeof(nid_t);
2427 *lblk_bits_ret = 8 * sizeof(block_t);
2428}
2429
6f69f0ed 2430static const struct fscrypt_operations f2fs_cryptops = {
0eee17e3
EB		 2431 .key_prefix = "f2fs:",
2432 .get_context = f2fs_get_context,
2433 .set_context = f2fs_set_context,
2434 .dummy_context = f2fs_dummy_context,
2435 .empty_dir = f2fs_empty_dir,
2436 .max_namelen = F2FS_NAME_LEN,
2437 .has_stable_inodes = f2fs_has_stable_inodes,
2438 .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
0b81d077 2439};
0b81d077
JK		 2440#endif
2441
aff063e2
JK		 2442static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
2443 u64 ino, u32 generation)
2444{
2445 struct f2fs_sb_info *sbi = F2FS_SB(sb);
2446 struct inode *inode;
2447
4d57b86d 2448 if (f2fs_check_nid_range(sbi, ino))
910bb12d 2449 return ERR_PTR(-ESTALE);
aff063e2
JK		 2450
2451 /*
2452 * f2fs_iget isn't quite right if the inode is currently unallocated!
2453 * However f2fs_iget currently does appropriate checks to handle stale
2454 * inodes so everything is OK.
2455 */
2456 inode = f2fs_iget(sb, ino);
2457 if (IS_ERR(inode))
2458 return ERR_CAST(inode);
6bacf52f 2459 if (unlikely(generation && inode->i_generation != generation)) {
aff063e2
JK		 2460 /* we didn't find the right inode.. */
2461 iput(inode);
2462 return ERR_PTR(-ESTALE);
2463 }
2464 return inode;
2465}
2466
2467static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
2468 int fh_len, int fh_type)
2469{
2470 return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
2471 f2fs_nfs_get_inode);
2472}
2473
2474static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid,
2475 int fh_len, int fh_type)
2476{
2477 return generic_fh_to_parent(sb, fid, fh_len, fh_type,
2478 f2fs_nfs_get_inode);
2479}
2480
2481static const struct export_operations f2fs_export_ops = {
2482 .fh_to_dentry = f2fs_fh_to_dentry,
2483 .fh_to_parent = f2fs_fh_to_parent,
2484 .get_parent = f2fs_get_parent,
2485};
2486
e0afc4d6 2487static loff_t max_file_blocks(void)
aff063e2 2488{
7a2af766 2489 loff_t result = 0;
d02a6e61 2490 loff_t leaf_count = DEF_ADDRS_PER_BLOCK;
aff063e2 2491
7a2af766
CY		 2492 /*
2493 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
6afc662e 2494 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
7a2af766
CY		 2495 * space in inode.i_addr, it will be more safe to reassign
2496 * result as zero.
2497 */
2498
aff063e2
JK		 2499 /* two direct node blocks */
2500 result += (leaf_count * 2);
2501
2502 /* two indirect node blocks */
2503 leaf_count *= NIDS_PER_BLOCK;
2504 result += (leaf_count * 2);
2505
2506 /* one double indirect node block */
2507 leaf_count *= NIDS_PER_BLOCK;
2508 result += leaf_count;
2509
aff063e2
JK		 2510 return result;
2511}
2512
fd694733
JK		 2513static int __f2fs_commit_super(struct buffer_head *bh,
2514 struct f2fs_super_block *super)
2515{
2516 lock_buffer(bh);
2517 if (super)
2518 memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
fd694733
JK		 2519 set_buffer_dirty(bh);
2520 unlock_buffer(bh);
2521
2522 /* it's rare case, we can do fua all the time */
3adc5fcb 2523 return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
fd694733
JK		 2524}
2525
df728b0f 2526static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
fd694733 2527 struct buffer_head *bh)
9a59b62f 2528{
fd694733
JK		 2529 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
2530 (bh->b_data + F2FS_SUPER_OFFSET);
df728b0f 2531 struct super_block *sb = sbi->sb;
9a59b62f
CY		 2532 u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
2533 u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
2534 u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
2535 u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
2536 u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
2537 u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
2538 u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
2539 u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
2540 u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
2541 u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
2542 u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
2543 u32 segment_count = le32_to_cpu(raw_super->segment_count);
2544 u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
fd694733
JK		 2545 u64 main_end_blkaddr = main_blkaddr +
2546 (segment_count_main << log_blocks_per_seg);
2547 u64 seg_end_blkaddr = segment0_blkaddr +
2548 (segment_count << log_blocks_per_seg);
9a59b62f
CY		 2549
2550 if (segment0_blkaddr != cp_blkaddr) {
dcbb4c10
JP		 2551 f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
2552 segment0_blkaddr, cp_blkaddr);
9a59b62f
CY		 2553 return true;
2554 }
2555
2556 if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
2557 sit_blkaddr) {
dcbb4c10
JP		 2558 f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
2559 cp_blkaddr, sit_blkaddr,
2560 segment_count_ckpt << log_blocks_per_seg);
9a59b62f
CY		 2561 return true;
2562 }
2563
2564 if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
2565 nat_blkaddr) {
dcbb4c10
JP		 2566 f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
2567 sit_blkaddr, nat_blkaddr,
2568 segment_count_sit << log_blocks_per_seg);
9a59b62f
CY		 2569 return true;
2570 }
2571
2572 if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
2573 ssa_blkaddr) {
dcbb4c10
JP		 2574 f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
2575 nat_blkaddr, ssa_blkaddr,
2576 segment_count_nat << log_blocks_per_seg);
9a59b62f
CY		 2577 return true;
2578 }
2579
2580 if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
2581 main_blkaddr) {
dcbb4c10
JP		 2582 f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
2583 ssa_blkaddr, main_blkaddr,
2584 segment_count_ssa << log_blocks_per_seg);
9a59b62f
CY		 2585 return true;
2586 }
2587
fd694733 2588 if (main_end_blkaddr > seg_end_blkaddr) {
dcbb4c10
JP		 2589 f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%u) block(%u)",
2590 main_blkaddr,
2591 segment0_blkaddr +
2592 (segment_count << log_blocks_per_seg),
2593 segment_count_main << log_blocks_per_seg);
9a59b62f 2594 return true;
fd694733
JK		 2595 } else if (main_end_blkaddr < seg_end_blkaddr) {
2596 int err = 0;
2597 char *res;
2598
2599 /* fix in-memory information all the time */
2600 raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
2601 segment0_blkaddr) >> log_blocks_per_seg);
2602
2603 if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) {
df728b0f 2604 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
fd694733
JK		 2605 res = "internally";
2606 } else {
2607 err = __f2fs_commit_super(bh, NULL);
2608 res = err ? "failed" : "done";
2609 }
dcbb4c10
JP		 2610 f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%u) block(%u)",
2611 res, main_blkaddr,
2612 segment0_blkaddr +
2613 (segment_count << log_blocks_per_seg),
2614 segment_count_main << log_blocks_per_seg);
fd694733
JK		 2615 if (err)
2616 return true;
9a59b62f 2617 }
9a59b62f
CY		 2618 return false;
2619}
2620
df728b0f 2621static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
fd694733 2622 struct buffer_head *bh)
aff063e2 2623{
0cfe75c5
JK		 2624 block_t segment_count, segs_per_sec, secs_per_zone;
2625 block_t total_sections, blocks_per_seg;
fd694733
JK		 2626 struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
2627 (bh->b_data + F2FS_SUPER_OFFSET);
aff063e2 2628 unsigned int blocksize;
d440c52d
JZ		 2629 size_t crc_offset = 0;
2630 __u32 crc = 0;
2631
38fb6d0e
IZ		 2632 if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
2633 f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
2634 F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
2635 return -EINVAL;
2636 }
2637
d440c52d 2638 /* Check checksum_offset and crc in superblock */
7beb01f7 2639 if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
d440c52d
JZ		 2640 crc_offset = le32_to_cpu(raw_super->checksum_offset);
2641 if (crc_offset !=
2642 offsetof(struct f2fs_super_block, crc)) {
dcbb4c10
JP		 2643 f2fs_info(sbi, "Invalid SB checksum offset: %zu",
2644 crc_offset);
38fb6d0e 2645 return -EFSCORRUPTED;
d440c52d
JZ		 2646 }
2647 crc = le32_to_cpu(raw_super->crc);
2648 if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
dcbb4c10 2649 f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
38fb6d0e 2650 return -EFSCORRUPTED;
d440c52d
JZ		 2651 }
2652 }
aff063e2 2653
5c9b4692 2654 /* Currently, support only 4KB page cache size */
09cbfeaf 2655 if (F2FS_BLKSIZE != PAGE_SIZE) {
dcbb4c10
JP		 2656 f2fs_info(sbi, "Invalid page_cache_size (%lu), supports only 4KB",
2657 PAGE_SIZE);
38fb6d0e 2658 return -EFSCORRUPTED;
5c9b4692 2659 }
2660
aff063e2
JK		 2661 /* Currently, support only 4KB block size */
2662 blocksize = 1 << le32_to_cpu(raw_super->log_blocksize);
5c9b4692 2663 if (blocksize != F2FS_BLKSIZE) {
dcbb4c10
JP		 2664 f2fs_info(sbi, "Invalid blocksize (%u), supports only 4KB",
2665 blocksize);
38fb6d0e 2666 return -EFSCORRUPTED;
a07ef784 2667 }
5c9b4692 2668
9a59b62f
CY		 2669 /* check log blocks per segment */
2670 if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
dcbb4c10
JP		 2671 f2fs_info(sbi, "Invalid log blocks per segment (%u)",
2672 le32_to_cpu(raw_super->log_blocks_per_seg));
38fb6d0e 2673 return -EFSCORRUPTED;
9a59b62f
CY		 2674 }
2675
55cf9cb6
CY		 2676 /* Currently, support 512/1024/2048/4096 bytes sector size */
2677 if (le32_to_cpu(raw_super->log_sectorsize) >
2678 F2FS_MAX_LOG_SECTOR_SIZE ||
2679 le32_to_cpu(raw_super->log_sectorsize) <
2680 F2FS_MIN_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 2681 f2fs_info(sbi, "Invalid log sectorsize (%u)",
2682 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 2683 return -EFSCORRUPTED;
a07ef784 2684 }
55cf9cb6
CY		 2685 if (le32_to_cpu(raw_super->log_sectors_per_block) +
2686 le32_to_cpu(raw_super->log_sectorsize) !=
2687 F2FS_MAX_LOG_SECTOR_SIZE) {
dcbb4c10
JP		 2688 f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
2689 le32_to_cpu(raw_super->log_sectors_per_block),
2690 le32_to_cpu(raw_super->log_sectorsize));
38fb6d0e 2691 return -EFSCORRUPTED;
a07ef784 2692 }
9a59b62f 2693
0cfe75c5
JK		 2694 segment_count = le32_to_cpu(raw_super->segment_count);
2695 segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
2696 secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
2697 total_sections = le32_to_cpu(raw_super->section_count);
2698
2699 /* blocks_per_seg should be 512, given the above check */
2700 blocks_per_seg = 1 << le32_to_cpu(raw_super->log_blocks_per_seg);
2701
2702 if (segment_count > F2FS_MAX_SEGMENT ||
2703 segment_count < F2FS_MIN_SEGMENTS) {
dcbb4c10 2704 f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
38fb6d0e 2705 return -EFSCORRUPTED;
0cfe75c5
JK		 2706 }
2707
2708 if (total_sections > segment_count ||
2709 total_sections < F2FS_MIN_SEGMENTS ||
2710 segs_per_sec > segment_count || !segs_per_sec) {
dcbb4c10
JP		 2711 f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
2712 segment_count, total_sections, segs_per_sec);
38fb6d0e 2713 return -EFSCORRUPTED;
0cfe75c5
JK		 2714 }
2715
2716 if ((segment_count / segs_per_sec) < total_sections) {
dcbb4c10
JP		 2717 f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
2718 segment_count, segs_per_sec, total_sections);
38fb6d0e 2719 return -EFSCORRUPTED;
0cfe75c5
JK		 2720 }
2721
88960068 2722 if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
dcbb4c10
JP		 2723 f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
2724 segment_count, le64_to_cpu(raw_super->block_count));
38fb6d0e 2725 return -EFSCORRUPTED;
0cfe75c5
JK		 2726 }
2727
9f701f6c
QS		 2728 if (RDEV(0).path[0]) {
2729 block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
2730 int i = 1;
2731
2732 while (i < MAX_DEVICES && RDEV(i).path[0]) {
2733 dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
2734 i++;
2735 }
2736 if (segment_count != dev_seg_count) {
2737 f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
2738 segment_count, dev_seg_count);
2739 return -EFSCORRUPTED;
2740 }
2741 }
2742
42bf546c 2743 if (secs_per_zone > total_sections || !secs_per_zone) {
dcbb4c10
JP		 2744 f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
2745 secs_per_zone, total_sections);
38fb6d0e 2746 return -EFSCORRUPTED;
0cfe75c5
JK		 2747 }
2748 if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
2749 raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
2750 (le32_to_cpu(raw_super->extension_count) +
2751 raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
dcbb4c10
JP		 2752 f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
2753 le32_to_cpu(raw_super->extension_count),
2754 raw_super->hot_ext_count,
2755 F2FS_MAX_EXTENSION);
38fb6d0e 2756 return -EFSCORRUPTED;
0cfe75c5
JK		 2757 }
2758
2759 if (le32_to_cpu(raw_super->cp_payload) >
2760 (blocks_per_seg - F2FS_CP_PACKS)) {
dcbb4c10
JP		 2761 f2fs_info(sbi, "Insane cp_payload (%u > %u)",
2762 le32_to_cpu(raw_super->cp_payload),
2763 blocks_per_seg - F2FS_CP_PACKS);
38fb6d0e 2764 return -EFSCORRUPTED;
0cfe75c5
JK		 2765 }
2766
9a59b62f
CY		 2767 /* check reserved ino info */
2768 if (le32_to_cpu(raw_super->node_ino) != 1 ||
2769 le32_to_cpu(raw_super->meta_ino) != 2 ||
2770 le32_to_cpu(raw_super->root_ino) != 3) {
dcbb4c10
JP		 2771 f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
2772 le32_to_cpu(raw_super->node_ino),
2773 le32_to_cpu(raw_super->meta_ino),
2774 le32_to_cpu(raw_super->root_ino));
38fb6d0e 2775 return -EFSCORRUPTED;
9a59b62f
CY		 2776 }
2777
2778 /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
df728b0f 2779 if (sanity_check_area_boundary(sbi, bh))
38fb6d0e 2780 return -EFSCORRUPTED;
9a59b62f 2781
aff063e2
JK		 2782 return 0;
2783}
2784
4d57b86d 2785int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
aff063e2
JK		 2786{
2787 unsigned int total, fsmeta;
577e3495
JK		 2788 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
2789 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2040fce8 2790 unsigned int ovp_segments, reserved_segments;
15d3042a 2791 unsigned int main_segs, blocks_per_seg;
c77ec61c
CY		 2792 unsigned int sit_segs, nat_segs;
2793 unsigned int sit_bitmap_size, nat_bitmap_size;
2794 unsigned int log_blocks_per_seg;
9dc956b2 2795 unsigned int segment_count_main;
e494c2f9 2796 unsigned int cp_pack_start_sum, cp_payload;
7b63f72f
CY		 2797 block_t user_block_count, valid_user_blocks;
2798 block_t avail_node_count, valid_node_count;
042be0f8 2799 int i, j;
aff063e2
JK		 2800
2801 total = le32_to_cpu(raw_super->segment_count);
2802 fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
c77ec61c
CY		 2803 sit_segs = le32_to_cpu(raw_super->segment_count_sit);
2804 fsmeta += sit_segs;
2805 nat_segs = le32_to_cpu(raw_super->segment_count_nat);
2806 fsmeta += nat_segs;
aff063e2
JK		 2807 fsmeta += le32_to_cpu(ckpt->rsvd_segment_count);
2808 fsmeta += le32_to_cpu(raw_super->segment_count_ssa);
2809
6bacf52f 2810 if (unlikely(fsmeta >= total))
aff063e2 2811 return 1;
577e3495 2812
2040fce8
JK		 2813 ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
2814 reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count);
2815
2816 if (unlikely(fsmeta < F2FS_MIN_SEGMENTS ||
2817 ovp_segments == 0 || reserved_segments == 0)) {
dcbb4c10 2818 f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
2040fce8
JK		 2819 return 1;
2820 }
2821
9dc956b2
CY		 2822 user_block_count = le64_to_cpu(ckpt->user_block_count);
2823 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
2824 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
2825 if (!user_block_count || user_block_count >=
2826 segment_count_main << log_blocks_per_seg) {
dcbb4c10
JP		 2827 f2fs_err(sbi, "Wrong user_block_count: %u",
2828 user_block_count);
9dc956b2
CY		 2829 return 1;
2830 }
2831
7b63f72f
CY		 2832 valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
2833 if (valid_user_blocks > user_block_count) {
dcbb4c10
JP		 2834 f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
2835 valid_user_blocks, user_block_count);
7b63f72f
CY		 2836 return 1;
2837 }
2838
2839 valid_node_count = le32_to_cpu(ckpt->valid_node_count);
27cae0bc 2840 avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
7b63f72f 2841 if (valid_node_count > avail_node_count) {
dcbb4c10
JP		 2842 f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
2843 valid_node_count, avail_node_count);
7b63f72f
CY		 2844 return 1;
2845 }
2846
15d3042a
JQ		 2847 main_segs = le32_to_cpu(raw_super->segment_count_main);
2848 blocks_per_seg = sbi->blocks_per_seg;
2849
2850 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
2851 if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
2852 le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
2853 return 1;
042be0f8
CY		 2854 for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
2855 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
2856 le32_to_cpu(ckpt->cur_node_segno[j])) {
dcbb4c10
JP		 2857 f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
2858 i, j,
2859 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 2860 return 1;
2861 }
2862 }
15d3042a
JQ		 2863 }
2864 for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
2865 if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
2866 le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
2867 return 1;
042be0f8
CY		 2868 for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
2869 if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
2870 le32_to_cpu(ckpt->cur_data_segno[j])) {
dcbb4c10
JP		 2871 f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
2872 i, j,
2873 le32_to_cpu(ckpt->cur_data_segno[i]));
042be0f8
CY		 2874 return 1;
2875 }
2876 }
2877 }
2878 for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
1166c1f2 2879 for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
042be0f8
CY		 2880 if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
2881 le32_to_cpu(ckpt->cur_data_segno[j])) {
1166c1f2 2882 f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
dcbb4c10
JP		 2883 i, j,
2884 le32_to_cpu(ckpt->cur_node_segno[i]));
042be0f8
CY		 2885 return 1;
2886 }
2887 }
15d3042a
JQ		 2888 }
2889
c77ec61c
CY		 2890 sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2891 nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
c77ec61c
CY		 2892
2893 if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
2894 nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
dcbb4c10
JP		 2895 f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
2896 sit_bitmap_size, nat_bitmap_size);
c77ec61c
CY		 2897 return 1;
2898 }
e494c2f9
CY		 2899
2900 cp_pack_start_sum = __start_sum_addr(sbi);
2901 cp_payload = __cp_payload(sbi);
2902 if (cp_pack_start_sum < cp_payload + 1 ||
2903 cp_pack_start_sum > blocks_per_seg - 1 -
2904 NR_CURSEG_TYPE) {
dcbb4c10
JP		 2905 f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
2906 cp_pack_start_sum);
e494c2f9
CY		 2907 return 1;
2908 }
c77ec61c 2909
5dae2d39
CY		 2910 if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
2911 le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
2d008835
CY		 2912 f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
2913 "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
2914 "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
dcbb4c10 2915 le32_to_cpu(ckpt->checksum_offset));
5dae2d39
CY		 2916 return 1;
2917 }
2918
1e968fdf 2919 if (unlikely(f2fs_cp_error(sbi))) {
dcbb4c10 2920 f2fs_err(sbi, "A bug case: need to run fsck");
577e3495
JK		 2921 return 1;
2922 }
aff063e2
JK		 2923 return 0;
2924}
2925
2926static void init_sb_info(struct f2fs_sb_info *sbi)
2927{
2928 struct f2fs_super_block *raw_super = sbi->raw_super;
089842de 2929 int i;
aff063e2
JK		 2930
2931 sbi->log_sectors_per_block =
2932 le32_to_cpu(raw_super->log_sectors_per_block);
2933 sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize);
2934 sbi->blocksize = 1 << sbi->log_blocksize;
2935 sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
2936 sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg;
2937 sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
2938 sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
2939 sbi->total_sections = le32_to_cpu(raw_super->section_count);
2940 sbi->total_node_count =
2941 (le32_to_cpu(raw_super->segment_count_nat) / 2)
2942 * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK;
2943 sbi->root_ino_num = le32_to_cpu(raw_super->root_ino);
2944 sbi->node_ino_num = le32_to_cpu(raw_super->node_ino);
2945 sbi->meta_ino_num = le32_to_cpu(raw_super->meta_ino);
5ec4e49f 2946 sbi->cur_victim_sec = NULL_SECNO;
e3080b01
CY		 2947 sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
2948 sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
b1c57c1c 2949 sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
e3080b01 2950 sbi->migration_granularity = sbi->segs_per_sec;
aff063e2 2951
ab9fa662 2952 sbi->dir_level = DEF_DIR_LEVEL;
6beceb54 2953 sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
d0239e1b 2954 sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
a7d10cf3
ST		 2955 sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
2956 sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
4354994f 2957 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
03f2c02d
JK		 2958 sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
2959 DEF_UMOUNT_DISCARD_TIMEOUT;
caf0047e 2960 clear_sbi_flag(sbi, SBI_NEED_FSCK);
2658e50d 2961
35782b23
JK		 2962 for (i = 0; i < NR_COUNT_TYPE; i++)
2963 atomic_set(&sbi->nr_pages[i], 0);
2964
c29fd0c0
CY		 2965 for (i = 0; i < META; i++)
2966 atomic_set(&sbi->wb_sync_req[i], 0);
687de7f1 2967
2658e50d
JK		 2968 INIT_LIST_HEAD(&sbi->s_list);
2969 mutex_init(&sbi->umount_mutex);
107a805d 2970 init_rwsem(&sbi->io_order_lock);
aaec2b1d 2971 spin_lock_init(&sbi->cp_lock);
1228b482
CY		 2972
2973 sbi->dirty_device = 0;
2974 spin_lock_init(&sbi->dev_lock);
d0d3f1b3 2975
846ae671 2976 init_rwsem(&sbi->sb_lock);
f5a53edc 2977 init_rwsem(&sbi->pin_sem);
aff063e2
JK		 2978}
2979
523be8a6
JK		 2980static int init_percpu_info(struct f2fs_sb_info *sbi)
2981{
35782b23 2982 int err;
41382ec4 2983
513c5f37
JK		 2984 err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
2985 if (err)
2986 return err;
2987
4a70e255 2988 err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
41382ec4 2989 GFP_KERNEL);
4a70e255
CY		 2990 if (err)
2991 percpu_counter_destroy(&sbi->alloc_valid_block_count);
2992
2993 return err;
523be8a6
JK		 2994}
2995
178053e2 2996#ifdef CONFIG_BLK_DEV_ZONED
d4100351
CH		 2997static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx,
2998 void *data)
2999{
3000 struct f2fs_dev_info *dev = data;
3001
3002 if (zone->type != BLK_ZONE_TYPE_CONVENTIONAL)
3003 set_bit(idx, dev->blkz_seq);
3004 return 0;
3005}
3006
3c62be17 3007static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
178053e2 3008{
3c62be17 3009 struct block_device *bdev = FDEV(devi).bdev;
178053e2 3010 sector_t nr_sectors = bdev->bd_part->nr_sects;
d4100351 3011 int ret;
178053e2 3012
7beb01f7 3013 if (!f2fs_sb_has_blkzoned(sbi))
178053e2
DLM		 3014 return 0;
3015
3c62be17 3016 if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
f99e8648 3017 SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)))
3c62be17 3018 return -EINVAL;
f99e8648 3019 sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev));
3c62be17
JK		 3020 if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz !=
3021 __ilog2_u32(sbi->blocks_per_blkz))
3022 return -EINVAL;
178053e2 3023 sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz);
3c62be17
JK		 3024 FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >>
3025 sbi->log_blocks_per_blkz;
f99e8648 3026 if (nr_sectors & (bdev_zone_sectors(bdev) - 1))
3c62be17 3027 FDEV(devi).nr_blkz++;
178053e2 3028
95175daf
DLM		 3029 FDEV(devi).blkz_seq = f2fs_kzalloc(sbi,
3030 BITS_TO_LONGS(FDEV(devi).nr_blkz)
3031 * sizeof(unsigned long),
3032 GFP_KERNEL);
3033 if (!FDEV(devi).blkz_seq)
178053e2
DLM		 3034 return -ENOMEM;
3035
178053e2 3036 /* Get block zones type */
d4100351
CH		 3037 ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb,
3038 &FDEV(devi));
3039 if (ret < 0)
3040 return ret;
178053e2 3041
d4100351 3042 return 0;
178053e2
DLM		 3043}
3044#endif
3045
9076a75f
GZ		 3046/*
3047 * Read f2fs raw super block.
2b39e907
SL		 3048 * Because we have two copies of super block, so read both of them
3049 * to get the first valid one. If any one of them is broken, we pass
3050 * them recovery flag back to the caller.
9076a75f 3051 */
df728b0f 3052static int read_raw_super_block(struct f2fs_sb_info *sbi,
9076a75f 3053 struct f2fs_super_block **raw_super,
e8240f65 3054 int *valid_super_block, int *recovery)
14d7e9de 3055{
df728b0f 3056 struct super_block *sb = sbi->sb;
2b39e907 3057 int block;
e8240f65 3058 struct buffer_head *bh;
fd694733 3059 struct f2fs_super_block *super;
da554e48 3060 int err = 0;
14d7e9de 3061
b39f0de2
YH		 3062 super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL);
3063 if (!super)
3064 return -ENOMEM;
2b39e907
SL		 3065
3066 for (block = 0; block < 2; block++) {
3067 bh = sb_bread(sb, block);
3068 if (!bh) {
dcbb4c10
JP		 3069 f2fs_err(sbi, "Unable to read %dth superblock",
3070 block + 1);
2b39e907 3071 err = -EIO;
ed352042 3072 *recovery = 1;
2b39e907
SL		 3073 continue;
3074 }
14d7e9de 3075
2b39e907 3076 /* sanity checking of raw super */
38fb6d0e
IZ		 3077 err = sanity_check_raw_super(sbi, bh);
3078 if (err) {
dcbb4c10
JP		 3079 f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
3080 block + 1);
2b39e907 3081 brelse(bh);
ed352042 3082 *recovery = 1;
2b39e907
SL		 3083 continue;
3084 }
14d7e9de 3085
2b39e907 3086 if (!*raw_super) {
fd694733
JK		 3087 memcpy(super, bh->b_data + F2FS_SUPER_OFFSET,
3088 sizeof(*super));
2b39e907
SL		 3089 *valid_super_block = block;
3090 *raw_super = super;
3091 }
3092 brelse(bh);
da554e48 3093 }
3094
da554e48 3095 /* No valid superblock */
2b39e907 3096 if (!*raw_super)
5222595d 3097 kvfree(super);
2b39e907
SL		 3098 else
3099 err = 0;
da554e48 3100
2b39e907 3101 return err;
14d7e9de 3102}
3103
fd694733 3104int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
26d815ad 3105{
5d909cdb 3106 struct buffer_head *bh;
d440c52d 3107 __u32 crc = 0;
26d815ad
JK		 3108 int err;
3109
df728b0f
JK		 3110 if ((recover && f2fs_readonly(sbi->sb)) ||
3111 bdev_read_only(sbi->sb->s_bdev)) {
3112 set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
f2353d7b 3113 return -EROFS;
df728b0f 3114 }
f2353d7b 3115
d440c52d 3116 /* we should update superblock crc here */
7beb01f7 3117 if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
d440c52d
JZ		 3118 crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
3119 offsetof(struct f2fs_super_block, crc));
3120 F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
3121 }
3122
fd694733 3123 /* write back-up superblock first */
0964fc1a 3124 bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
5d909cdb
JK		 3125 if (!bh)
3126 return -EIO;
fd694733 3127 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
5d909cdb 3128 brelse(bh);
c5bda1c8
CY		 3129
3130 /* if we are in recovery path, skip writing valid superblock */
3131 if (recover || err)
5d909cdb 3132 return err;
26d815ad
JK		 3133
3134 /* write current valid superblock */
0964fc1a 3135 bh = sb_bread(sbi->sb, sbi->valid_super_block);
fd694733
JK		 3136 if (!bh)
3137 return -EIO;
3138 err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
3139 brelse(bh);
3140 return err;
26d815ad
JK		 3141}
3142
3c62be17
JK		 3143static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
3144{
3145 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
7bb3a371 3146 unsigned int max_devices = MAX_DEVICES;
3c62be17
JK		 3147 int i;
3148
7bb3a371
MS		 3149 /* Initialize single device information */
3150 if (!RDEV(0).path[0]) {
3151 if (!bdev_is_zoned(sbi->sb->s_bdev))
3c62be17 3152 return 0;
7bb3a371
MS		 3153 max_devices = 1;
3154 }
3c62be17 3155
7bb3a371
MS		 3156 /*
3157 * Initialize multiple devices information, or single
3158 * zoned block device information.
3159 */
026f0507
KC		 3160 sbi->devs = f2fs_kzalloc(sbi,
3161 array_size(max_devices,
3162 sizeof(struct f2fs_dev_info)),
3163 GFP_KERNEL);
7bb3a371
MS		 3164 if (!sbi->devs)
3165 return -ENOMEM;
3c62be17 3166
7bb3a371 3167 for (i = 0; i < max_devices; i++) {
3c62be17 3168
7bb3a371
MS		 3169 if (i > 0 && !RDEV(i).path[0])
3170 break;
3171
3172 if (max_devices == 1) {
3173 /* Single zoned block device mount */
3174 FDEV(0).bdev =
3175 blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev,
3c62be17 3176 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371
MS		 3177 } else {
3178 /* Multi-device mount */
3179 memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN);
3180 FDEV(i).total_segments =
3181 le32_to_cpu(RDEV(i).total_segments);
3182 if (i == 0) {
3183 FDEV(i).start_blk = 0;
3184 FDEV(i).end_blk = FDEV(i).start_blk +
3185 (FDEV(i).total_segments <<
3186 sbi->log_blocks_per_seg) - 1 +
3187 le32_to_cpu(raw_super->segment0_blkaddr);
3188 } else {
3189 FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
3190 FDEV(i).end_blk = FDEV(i).start_blk +
3191 (FDEV(i).total_segments <<
3192 sbi->log_blocks_per_seg) - 1;
3193 }
3194 FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path,
3c62be17 3195 sbi->sb->s_mode, sbi->sb->s_type);
7bb3a371 3196 }
3c62be17
JK		 3197 if (IS_ERR(FDEV(i).bdev))
3198 return PTR_ERR(FDEV(i).bdev);
3199
3200 /* to release errored devices */
3201 sbi->s_ndevs = i + 1;
3202
3203#ifdef CONFIG_BLK_DEV_ZONED
3204 if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM &&
7beb01f7 3205 !f2fs_sb_has_blkzoned(sbi)) {
dcbb4c10 3206 f2fs_err(sbi, "Zoned block device feature not enabled\n");
3c62be17
JK		 3207 return -EINVAL;
3208 }
3209 if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) {
3210 if (init_blkz_info(sbi, i)) {
dcbb4c10 3211 f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
3c62be17
JK		 3212 return -EINVAL;
3213 }
7bb3a371
MS		 3214 if (max_devices == 1)
3215 break;
dcbb4c10
JP		 3216 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)",
3217 i, FDEV(i).path,
3218 FDEV(i).total_segments,
3219 FDEV(i).start_blk, FDEV(i).end_blk,
3220 bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ?
3221 "Host-aware" : "Host-managed");
3c62be17
JK		 3222 continue;
3223 }
3224#endif
dcbb4c10
JP		 3225 f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
3226 i, FDEV(i).path,
3227 FDEV(i).total_segments,
3228 FDEV(i).start_blk, FDEV(i).end_blk);
3229 }
3230 f2fs_info(sbi,
3231 "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi));
3c62be17
JK		 3232 return 0;
3233}
3234
5aba5430
DR		 3235static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
3236{
3237#ifdef CONFIG_UNICODE
3238 if (f2fs_sb_has_casefold(sbi) && !sbi->s_encoding) {
3239 const struct f2fs_sb_encodings *encoding_info;
3240 struct unicode_map *encoding;
3241 __u16 encoding_flags;
3242
3243 if (f2fs_sb_has_encrypt(sbi)) {
3244 f2fs_err(sbi,
3245 "Can't mount with encoding and encryption");
3246 return -EINVAL;
3247 }
3248
3249 if (f2fs_sb_read_encoding(sbi->raw_super, &encoding_info,
3250 &encoding_flags)) {
3251 f2fs_err(sbi,
3252 "Encoding requested by superblock is unknown");
3253 return -EINVAL;
3254 }
3255
3256 encoding = utf8_load(encoding_info->version);
3257 if (IS_ERR(encoding)) {
3258 f2fs_err(sbi,
3259 "can't mount with superblock charset: %s-%s "
3260 "not supported by the kernel. flags: 0x%x.",
3261 encoding_info->name, encoding_info->version,
3262 encoding_flags);
3263 return PTR_ERR(encoding);
3264 }
3265 f2fs_info(sbi, "Using encoding defined by superblock: "
3266 "%s-%s with flags 0x%hx", encoding_info->name,
3267 encoding_info->version?:"\b", encoding_flags);
3268
3269 sbi->s_encoding = encoding;
3270 sbi->s_encoding_flags = encoding_flags;
2c2eb7a3 3271 sbi->sb->s_d_op = &f2fs_dentry_ops;
5aba5430
DR		 3272 }
3273#else
3274 if (f2fs_sb_has_casefold(sbi)) {
3275 f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
3276 return -EINVAL;
3277 }
3278#endif
3279 return 0;
3280}
3281
84b89e5d
JK		 3282static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
3283{
3284 struct f2fs_sm_info *sm_i = SM_I(sbi);
3285
3286 /* adjust parameters according to the volume size */
3287 if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) {
63189b78 3288 F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
84b89e5d
JK		 3289 sm_i->dcc_info->discard_granularity = 1;
3290 sm_i->ipu_policy = 1 << F2FS_IPU_FORCE;
3291 }
4cac90d5
CY		 3292
3293 sbi->readdir_ra = 1;
84b89e5d
JK		 3294}
3295
aff063e2
JK		 3296static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
3297{
3298 struct f2fs_sb_info *sbi;
da554e48 3299 struct f2fs_super_block *raw_super;
aff063e2 3300 struct inode *root;
99e3e858 3301 int err;
aa2c8c43 3302 bool skip_recovery = false, need_fsck = false;
dabc4a5c 3303 char *options = NULL;
e8240f65 3304 int recovery, i, valid_super_block;
8f1dbbbb 3305 struct curseg_info *seg_i;
aa2c8c43 3306 int retry_cnt = 1;
aff063e2 3307
ed2e621a 3308try_onemore:
da554e48 3309 err = -EINVAL;
3310 raw_super = NULL;
e8240f65 3311 valid_super_block = -1;
da554e48 3312 recovery = 0;
3313
aff063e2
JK		 3314 /* allocate memory for f2fs-specific super block info */
3315 sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
3316 if (!sbi)
3317 return -ENOMEM;
3318
df728b0f
JK		 3319 sbi->sb = sb;
3320
43b6573b
KM		 3321 /* Load the checksum driver */
3322 sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
3323 if (IS_ERR(sbi->s_chksum_driver)) {
dcbb4c10 3324 f2fs_err(sbi, "Cannot load crc32 driver.");
43b6573b
KM		 3325 err = PTR_ERR(sbi->s_chksum_driver);
3326 sbi->s_chksum_driver = NULL;
3327 goto free_sbi;
3328 }
3329
ff9234ad 3330 /* set a block size */
6bacf52f 3331 if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
dcbb4c10 3332 f2fs_err(sbi, "unable to set blocksize");
aff063e2 3333 goto free_sbi;
a07ef784 3334 }
aff063e2 3335
df728b0f 3336 err = read_raw_super_block(sbi, &raw_super, &valid_super_block,
e8240f65 3337 &recovery);
9076a75f
GZ		 3338 if (err)
3339 goto free_sbi;
3340
5fb08372 3341 sb->s_fs_info = sbi;
52763a4b
JK		 3342 sbi->raw_super = raw_super;
3343
704956ec 3344 /* precompute checksum seed for metadata */
7beb01f7 3345 if (f2fs_sb_has_inode_chksum(sbi))
704956ec
CY		 3346 sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
3347 sizeof(raw_super->uuid));
3348
d1b959c8
DLM		 3349 /*
3350 * The BLKZONED feature indicates that the drive was formatted with
3351 * zone alignment optimization. This is optional for host-aware
3352 * devices, but mandatory for host-managed zoned block devices.
3353 */
3354#ifndef CONFIG_BLK_DEV_ZONED
7beb01f7 3355 if (f2fs_sb_has_blkzoned(sbi)) {
dcbb4c10 3356 f2fs_err(sbi, "Zoned block device support is not enabled");
1727f317 3357 err = -EOPNOTSUPP;
d1b959c8
DLM		 3358 goto free_sb_buf;
3359 }
d1b959c8 3360#endif
498c5e9f 3361 default_options(sbi);
aff063e2 3362 /* parse mount options */
dabc4a5c
JK		 3363 options = kstrdup((const char *)data, GFP_KERNEL);
3364 if (data && !options) {
3365 err = -ENOMEM;
aff063e2 3366 goto free_sb_buf;
dabc4a5c
JK		 3367 }
3368
3369 err = parse_options(sb, options);
3370 if (err)
3371 goto free_options;
aff063e2 3372
e0afc4d6
CY		 3373 sbi->max_file_blocks = max_file_blocks();
3374 sb->s_maxbytes = sbi->max_file_blocks <<
3375 le32_to_cpu(raw_super->log_blocksize);
aff063e2 3376 sb->s_max_links = F2FS_LINK_MAX;
aff063e2 3377
5aba5430
DR		 3378 err = f2fs_setup_casefold(sbi);
3379 if (err)
3380 goto free_options;
3381
0abd675e
CY		 3382#ifdef CONFIG_QUOTA
3383 sb->dq_op = &f2fs_quota_operations;
bc88ac96 3384 sb->s_qcop = &f2fs_quotactl_ops;
5c57132e 3385 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
292c196a 3386
7beb01f7 3387 if (f2fs_sb_has_quota_ino(sbi)) {
292c196a
CY		 3388 for (i = 0; i < MAXQUOTAS; i++) {
3389 if (f2fs_qf_ino(sbi->sb, i))
3390 sbi->nquota_files++;
3391 }
3392 }
0abd675e
CY		 3393#endif
3394
aff063e2 3395 sb->s_op = &f2fs_sops;
643fa961 3396#ifdef CONFIG_FS_ENCRYPTION
0b81d077 3397 sb->s_cop = &f2fs_cryptops;
95ae251f
EB		 3398#endif
3399#ifdef CONFIG_FS_VERITY
3400 sb->s_vop = &f2fs_verityops;
ffcc4182 3401#endif
aff063e2
JK		 3402 sb->s_xattr = f2fs_xattr_handlers;
3403 sb->s_export_op = &f2fs_export_ops;
3404 sb->s_magic = F2FS_SUPER_MAGIC;
aff063e2 3405 sb->s_time_gran = 1;
1751e8a6
LT		 3406 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
3407 (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
85787090 3408 memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid));
578c6478 3409 sb->s_iflags |= SB_I_CGROUPWB;
aff063e2
JK		 3410
3411 /* init f2fs-specific super block info */
e8240f65 3412 sbi->valid_super_block = valid_super_block;
fb24fea7 3413 init_rwsem(&sbi->gc_lock);
853137ce 3414 mutex_init(&sbi->writepages);
aff063e2 3415 mutex_init(&sbi->cp_mutex);
04f0b2ea 3416 mutex_init(&sbi->resize_mutex);
b3582c68 3417 init_rwsem(&sbi->node_write);
59c9081b 3418 init_rwsem(&sbi->node_change);
315df839
JK		 3419
3420 /* disallow all the data/node/meta page writes */
3421 set_sbi_flag(sbi, SBI_POR_DOING);
aff063e2 3422 spin_lock_init(&sbi->stat_lock);
971767ca 3423
b0af6d49
CY		 3424 /* init iostat info */
3425 spin_lock_init(&sbi->iostat_lock);
3426 sbi->iostat_enable = false;
3427
458e6197 3428 for (i = 0; i < NR_PAGE_TYPE; i++) {
a912b54d
JK		 3429 int n = (i == META) ? 1: NR_TEMP_TYPE;
3430 int j;
3431
c8606593
KC		 3432 sbi->write_io[i] =
3433 f2fs_kmalloc(sbi,
3434 array_size(n,
3435 sizeof(struct f2fs_bio_info)),
3436 GFP_KERNEL);
b63def91
CJ		 3437 if (!sbi->write_io[i]) {
3438 err = -ENOMEM;
0b2103e8 3439 goto free_bio_info;
b63def91 3440 }
a912b54d
JK		 3441
3442 for (j = HOT; j < n; j++) {
3443 init_rwsem(&sbi->write_io[i][j].io_rwsem);
3444 sbi->write_io[i][j].sbi = sbi;
3445 sbi->write_io[i][j].bio = NULL;
fb830fc5
CY		 3446 spin_lock_init(&sbi->write_io[i][j].io_lock);
3447 INIT_LIST_HEAD(&sbi->write_io[i][j].io_list);
0b20fcec
CY		 3448 INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list);
3449 init_rwsem(&sbi->write_io[i][j].bio_list_lock);
a912b54d 3450 }
458e6197 3451 }
971767ca 3452
b873b798 3453 init_rwsem(&sbi->cp_rwsem);
db6ec53b 3454 init_rwsem(&sbi->quota_sem);
fb51b5ef 3455 init_waitqueue_head(&sbi->cp_wait);
aff063e2
JK		 3456 init_sb_info(sbi);
3457
523be8a6
JK		 3458 err = init_percpu_info(sbi);
3459 if (err)
d7997e63 3460 goto free_bio_info;
523be8a6 3461
c72db71e 3462 if (F2FS_IO_ALIGNED(sbi)) {
0a595eba 3463 sbi->write_io_dummy =
a3ebfe4f 3464 mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
1727f317
CY		 3465 if (!sbi->write_io_dummy) {
3466 err = -ENOMEM;
d7997e63 3467 goto free_percpu;
1727f317 3468 }
0a595eba
JK		 3469 }
3470
a999150f
CY		 3471 /* init per sbi slab cache */
3472 err = f2fs_init_xattr_caches(sbi);
3473 if (err)
3474 goto free_io_dummy;
3475
aff063e2
JK		 3476 /* get an inode for meta space */
3477 sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
3478 if (IS_ERR(sbi->meta_inode)) {
dcbb4c10 3479 f2fs_err(sbi, "Failed to read F2FS meta data inode");
aff063e2 3480 err = PTR_ERR(sbi->meta_inode);
a999150f 3481 goto free_xattr_cache;
aff063e2
JK		 3482 }
3483
4d57b86d 3484 err = f2fs_get_valid_checkpoint(sbi);
a07ef784 3485 if (err) {
dcbb4c10 3486 f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
aff063e2 3487 goto free_meta_inode;
a07ef784 3488 }
aff063e2 3489
af033b2a
CY		 3490 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
3491 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
db610a64
JK		 3492 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
3493 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
3494 sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
3495 }
af033b2a 3496
04f0b2ea
QS		 3497 if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
3498 set_sbi_flag(sbi, SBI_NEED_FSCK);
3499
3c62be17
JK		 3500 /* Initialize device list */
3501 err = f2fs_scan_devices(sbi);
3502 if (err) {
dcbb4c10 3503 f2fs_err(sbi, "Failed to find devices");
3c62be17
JK		 3504 goto free_devices;
3505 }
3506
4c8ff709
CY		 3507 err = f2fs_init_post_read_wq(sbi);
3508 if (err) {
3509 f2fs_err(sbi, "Failed to initialize post read workqueue");
3510 goto free_devices;
3511 }
3512
aff063e2
JK		 3513 sbi->total_valid_node_count =
3514 le32_to_cpu(sbi->ckpt->valid_node_count);
513c5f37
JK		 3515 percpu_counter_set(&sbi->total_valid_inode_count,
3516 le32_to_cpu(sbi->ckpt->valid_inode_count));
aff063e2
JK		 3517 sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count);
3518 sbi->total_valid_block_count =
3519 le64_to_cpu(sbi->ckpt->valid_block_count);
3520 sbi->last_valid_block_count = sbi->total_valid_block_count;
daeb433e 3521 sbi->reserved_blocks = 0;
80d42145 3522 sbi->current_reserved_blocks = 0;
7e65be49 3523 limit_reserve_root(sbi);
41382ec4 3524
c227f912
CY		 3525 for (i = 0; i < NR_INODE_TYPE; i++) {
3526 INIT_LIST_HEAD(&sbi->inode_list[i]);
3527 spin_lock_init(&sbi->inode_lock[i]);
3528 }
040d2bb3 3529 mutex_init(&sbi->flush_lock);
aff063e2 3530
4d57b86d 3531 f2fs_init_extent_cache_info(sbi);
1dcc336b 3532
4d57b86d 3533 f2fs_init_ino_entry_info(sbi);
aff063e2 3534
50fa53ec
CY		 3535 f2fs_init_fsync_node_info(sbi);
3536
aff063e2 3537 /* setup f2fs internal modules */
4d57b86d 3538 err = f2fs_build_segment_manager(sbi);
a07ef784 3539 if (err) {
dcbb4c10
JP		 3540 f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
3541 err);
aff063e2 3542 goto free_sm;
a07ef784 3543 }
4d57b86d 3544 err = f2fs_build_node_manager(sbi);
a07ef784 3545 if (err) {
dcbb4c10
JP		 3546 f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
3547 err);
aff063e2 3548 goto free_nm;
a07ef784 3549 }
aff063e2 3550
8f1dbbbb
SL		 3551 /* For write statistics */
3552 if (sb->s_bdev->bd_part)
3553 sbi->sectors_written_start =
dbae2c55
MC		 3554 (u64)part_stat_read(sb->s_bdev->bd_part,
3555 sectors[STAT_WRITE]);
8f1dbbbb
SL		 3556
3557 /* Read accumulated write IO statistics if exists */
3558 seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
3559 if (__exist_node_summaries(sbi))
3560 sbi->kbytes_written =
b2dde6fc 3561 le64_to_cpu(seg_i->journal->info.kbytes_written);
8f1dbbbb 3562
4d57b86d 3563 f2fs_build_gc_manager(sbi);
aff063e2 3564
60aa4d55
ST		 3565 err = f2fs_build_stats(sbi);
3566 if (err)
3567 goto free_nm;
3568
aff063e2
JK		 3569 /* get an inode for node space */
3570 sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
3571 if (IS_ERR(sbi->node_inode)) {
dcbb4c10 3572 f2fs_err(sbi, "Failed to read node inode");
aff063e2 3573 err = PTR_ERR(sbi->node_inode);
60aa4d55 3574 goto free_stats;
aff063e2
JK		 3575 }
3576
aff063e2
JK		 3577 /* read root inode and dentry */
3578 root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
3579 if (IS_ERR(root)) {
dcbb4c10 3580 f2fs_err(sbi, "Failed to read root inode");
aff063e2 3581 err = PTR_ERR(root);
60aa4d55 3582 goto free_node_inode;
aff063e2 3583 }
bcbfbd60
CY		 3584 if (!S_ISDIR(root->i_mode) || !root->i_blocks ||
3585 !root->i_size || !root->i_nlink) {
9d847950 3586 iput(root);
8f99a946 3587 err = -EINVAL;
60aa4d55 3588 goto free_node_inode;
8f99a946 3589 }
aff063e2
JK		 3590
3591 sb->s_root = d_make_root(root); /* allocate root dentry */
3592 if (!sb->s_root) {
3593 err = -ENOMEM;
025cdb16 3594 goto free_node_inode;
aff063e2
JK		 3595 }
3596
dc6b2055 3597 err = f2fs_register_sysfs(sbi);
b59d0bae 3598 if (err)
a398101a 3599 goto free_root_inode;
b59d0bae 3600
ea676733 3601#ifdef CONFIG_QUOTA
76cf05d7 3602 /* Enable quota usage during mount */
7beb01f7 3603 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
ea676733 3604 err = f2fs_enable_quotas(sb);
730746ce 3605 if (err)
dcbb4c10 3606 f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
ea676733
JK		 3607 }
3608#endif
7a88ddb5 3609 /* if there are any orphan inodes, free them */
4d57b86d 3610 err = f2fs_recover_orphan_inodes(sbi);
4b2414d0 3611 if (err)
ea676733 3612 goto free_meta;
4b2414d0 3613
4354994f 3614 if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
aa2c8c43 3615 goto reset_checkpoint;
4354994f 3616
6437d1b0 3617 /* recover fsynced data */
a9117eca
CY		 3618 if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
3619 !test_opt(sbi, NORECOVERY)) {
081d78c2
JK		 3620 /*
3621 * mount should be failed, when device has readonly mode, and
3622 * previous checkpoint was not done by clean system shutdown.
3623 */
b61af314
CY		 3624 if (f2fs_hw_is_readonly(sbi)) {
3625 if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
3626 err = -EROFS;
dcbb4c10 3627 f2fs_err(sbi, "Need to recover fsync data, but write access unavailable");
b61af314
CY		 3628 goto free_meta;
3629 }
dcbb4c10 3630 f2fs_info(sbi, "write access unavailable, skipping recovery");
b61af314 3631 goto reset_checkpoint;
081d78c2 3632 }
2adc3505
CY		 3633
3634 if (need_fsck)
3635 set_sbi_flag(sbi, SBI_NEED_FSCK);
3636
aa2c8c43
CY		 3637 if (skip_recovery)
3638 goto reset_checkpoint;
a468f0ef 3639
4d57b86d 3640 err = f2fs_recover_fsync_data(sbi, false);
6781eabb 3641 if (err < 0) {
aa2c8c43
CY		 3642 if (err != -ENOMEM)
3643 skip_recovery = true;
2adc3505 3644 need_fsck = true;
dcbb4c10
JP		 3645 f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
3646 err);
4b2414d0 3647 goto free_meta;
ed2e621a 3648 }
6781eabb 3649 } else {
4d57b86d 3650 err = f2fs_recover_fsync_data(sbi, true);
6781eabb
JK		 3651
3652 if (!f2fs_readonly(sb) && err > 0) {
3653 err = -EINVAL;
dcbb4c10 3654 f2fs_err(sbi, "Need to recover fsync data");
ea676733 3655 goto free_meta;
6781eabb 3656 }
6437d1b0 3657 }
d508c94e
SK		 3658
3659 /*
3660 * If the f2fs is not readonly and fsync data recovery succeeds,
3661 * check zoned block devices' write pointer consistency.
3662 */
3663 if (!err && !f2fs_readonly(sb) && f2fs_sb_has_blkzoned(sbi)) {
3664 err = f2fs_check_write_pointer(sbi);
3665 if (err)
3666 goto free_meta;
3667 }
3668
aa2c8c43 3669reset_checkpoint:
4d57b86d 3670 /* f2fs_recover_fsync_data() cleared this already */
315df839 3671 clear_sbi_flag(sbi, SBI_POR_DOING);
b59d0bae 3672
4354994f
DR		 3673 if (test_opt(sbi, DISABLE_CHECKPOINT)) {
3674 err = f2fs_disable_checkpoint(sbi);
3675 if (err)
812a9597 3676 goto sync_free_meta;
4354994f
DR		 3677 } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
3678 f2fs_enable_checkpoint(sbi);
3679 }
3680
6437d1b0
JK		 3681 /*
3682 * If filesystem is not mounted as read-only then
3683 * do start the gc_thread.
3684 */
bbbc34fd 3685 if (F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF && !f2fs_readonly(sb)) {
6437d1b0 3686 /* After POR, we can run background GC thread.*/
4d57b86d 3687 err = f2fs_start_gc_thread(sbi);
6437d1b0 3688 if (err)
812a9597 3689 goto sync_free_meta;
6437d1b0 3690 }
5222595d 3691 kvfree(options);
da554e48 3692
3693 /* recover broken superblock */
f2353d7b 3694 if (recovery) {
41214b3c 3695 err = f2fs_commit_super(sbi, true);
dcbb4c10
JP		 3696 f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
3697 sbi->valid_super_block ? 1 : 2, err);
da554e48 3698 }
3699
bae01eda
CY		 3700 f2fs_join_shrinker(sbi);
3701
84b89e5d
JK		 3702 f2fs_tuning_parameters(sbi);
3703
dcbb4c10
JP		 3704 f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
3705 cur_cp_version(F2FS_CKPT(sbi)));
6beceb54 3706 f2fs_update_time(sbi, CP_TIME);
d0239e1b 3707 f2fs_update_time(sbi, REQ_TIME);
db610a64 3708 clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
aff063e2 3709 return 0;
6437d1b0 3710
812a9597
JK		 3711sync_free_meta:
3712 /* safe to flush all the data */
3713 sync_filesystem(sbi->sb);
aa2c8c43 3714 retry_cnt = 0;
812a9597 3715
4b2414d0 3716free_meta:
ea676733 3717#ifdef CONFIG_QUOTA
26b5a079 3718 f2fs_truncate_quota_inode_pages(sb);
7beb01f7 3719 if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
ea676733
JK		 3720 f2fs_quota_off_umount(sbi->sb);
3721#endif
4b2414d0 3722 /*
4d57b86d 3723 * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
4b2414d0 3724 * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
4d57b86d
CY		 3725 * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
3726 * falls into an infinite loop in f2fs_sync_meta_pages().
4b2414d0
CY		 3727 */
3728 truncate_inode_pages_final(META_MAPPING(sbi));
812a9597
JK		 3729 /* evict some inodes being cached by GC */
3730 evict_inodes(sb);
dc6b2055 3731 f2fs_unregister_sysfs(sbi);
aff063e2
JK		 3732free_root_inode:
3733 dput(sb->s_root);
3734 sb->s_root = NULL;
3735free_node_inode:
4d57b86d 3736 f2fs_release_ino_entry(sbi, true);
bae01eda 3737 truncate_inode_pages_final(NODE_MAPPING(sbi));
aff063e2 3738 iput(sbi->node_inode);
7c77bf7d 3739 sbi->node_inode = NULL;
60aa4d55
ST		 3740free_stats:
3741 f2fs_destroy_stats(sbi);
aff063e2 3742free_nm:
4d57b86d 3743 f2fs_destroy_node_manager(sbi);
aff063e2 3744free_sm:
4d57b86d 3745 f2fs_destroy_segment_manager(sbi);
4c8ff709 3746 f2fs_destroy_post_read_wq(sbi);
3c62be17
JK		 3747free_devices:
3748 destroy_device_list(sbi);
5222595d 3749 kvfree(sbi->ckpt);
aff063e2
JK		 3750free_meta_inode:
3751 make_bad_inode(sbi->meta_inode);
3752 iput(sbi->meta_inode);
7c77bf7d 3753 sbi->meta_inode = NULL;
a999150f
CY		 3754free_xattr_cache:
3755 f2fs_destroy_xattr_caches(sbi);
0a595eba
JK		 3756free_io_dummy:
3757 mempool_destroy(sbi->write_io_dummy);
d7997e63
CY		 3758free_percpu:
3759 destroy_percpu_info(sbi);
3760free_bio_info:
a912b54d 3761 for (i = 0; i < NR_PAGE_TYPE; i++)
5222595d 3762 kvfree(sbi->write_io[i]);
5aba5430
DR		 3763
3764#ifdef CONFIG_UNICODE
3765 utf8_unload(sbi->s_encoding);
3766#endif
d7997e63 3767free_options:
4b2414d0
CY		 3768#ifdef CONFIG_QUOTA
3769 for (i = 0; i < MAXQUOTAS; i++)
5222595d 3770 kvfree(F2FS_OPTION(sbi).s_qf_names[i]);
4b2414d0 3771#endif
5222595d 3772 kvfree(options);
aff063e2 3773free_sb_buf:
5222595d 3774 kvfree(raw_super);
aff063e2 3775free_sbi:
43b6573b
KM		 3776 if (sbi->s_chksum_driver)
3777 crypto_free_shash(sbi->s_chksum_driver);
5222595d 3778 kvfree(sbi);
ed2e621a
JK		 3779
3780 /* give only one another chance */
aa2c8c43
CY		 3781 if (retry_cnt > 0 && skip_recovery) {
3782 retry_cnt--;
ed2e621a
JK		 3783 shrink_dcache_sb(sb);
3784 goto try_onemore;
3785 }
aff063e2
JK		 3786 return err;
3787}
3788
3789static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags,
3790 const char *dev_name, void *data)
3791{
3792 return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super);
3793}
3794
30a5537f
JK		 3795static void kill_f2fs_super(struct super_block *sb)
3796{
cce13252 3797 if (sb->s_root) {
1cb50f87
JK		 3798 struct f2fs_sb_info *sbi = F2FS_SB(sb);
3799
3800 set_sbi_flag(sbi, SBI_IS_CLOSE);
3801 f2fs_stop_gc_thread(sbi);
3802 f2fs_stop_discard_thread(sbi);
3803
3804 if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
3805 !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
3806 struct cp_control cpc = {
3807 .reason = CP_UMOUNT,
3808 };
3809 f2fs_write_checkpoint(sbi, &cpc);
3810 }
1378752b
CY		 3811
3812 if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb))
3813 sb->s_flags &= ~SB_RDONLY;
cce13252 3814 }
30a5537f
JK		 3815 kill_block_super(sb);
3816}
3817
aff063e2
JK		 3818static struct file_system_type f2fs_fs_type = {
3819 .owner = THIS_MODULE,
3820 .name = "f2fs",
3821 .mount = f2fs_mount,
30a5537f 3822 .kill_sb = kill_f2fs_super,
aff063e2
JK		 3823 .fs_flags = FS_REQUIRES_DEV,
3824};
7f78e035 3825MODULE_ALIAS_FS("f2fs");
aff063e2 3826
6e6093a8 3827static int __init init_inodecache(void)
aff063e2 3828{
5d097056
VD		 3829 f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache",
3830 sizeof(struct f2fs_inode_info), 0,
3831 SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL);
6bacf52f 3832 if (!f2fs_inode_cachep)
aff063e2
JK		 3833 return -ENOMEM;
3834 return 0;
3835}
3836
3837static void destroy_inodecache(void)
3838{
3839 /*
3840 * Make sure all delayed rcu free inodes are flushed before we
3841 * destroy cache.
3842 */
3843 rcu_barrier();
3844 kmem_cache_destroy(f2fs_inode_cachep);
3845}
3846
3847static int __init init_f2fs_fs(void)
3848{
3849 int err;
3850
4071e67c
AP		 3851 if (PAGE_SIZE != F2FS_BLKSIZE) {
3852 printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n",
3853 PAGE_SIZE, F2FS_BLKSIZE);
3854 return -EINVAL;
3855 }
3856
c0508650
JK		 3857 f2fs_build_trace_ios();
3858
aff063e2
JK		 3859 err = init_inodecache();
3860 if (err)
3861 goto fail;
4d57b86d 3862 err = f2fs_create_node_manager_caches();
aff063e2 3863 if (err)
9890ff3f 3864 goto free_inodecache;
4d57b86d 3865 err = f2fs_create_segment_manager_caches();
aff063e2 3866 if (err)
9890ff3f 3867 goto free_node_manager_caches;
4d57b86d 3868 err = f2fs_create_checkpoint_caches();
aff063e2 3869 if (err)
06292073 3870 goto free_segment_manager_caches;
4d57b86d 3871 err = f2fs_create_extent_cache();
1dcc336b
CY		 3872 if (err)
3873 goto free_checkpoint_caches;
dc6b2055 3874 err = f2fs_init_sysfs();
a398101a 3875 if (err)
1dcc336b 3876 goto free_extent_cache;
2658e50d 3877 err = register_shrinker(&f2fs_shrinker_info);
cfc4d971 3878 if (err)
a398101a 3879 goto free_sysfs;
2658e50d
JK		 3880 err = register_filesystem(&f2fs_fs_type);
3881 if (err)
3882 goto free_shrinker;
21acc07d 3883 f2fs_create_root_stats();
6dbb1796
EB		 3884 err = f2fs_init_post_read_processing();
3885 if (err)
3886 goto free_root_stats;
0b20fcec
CY		 3887 err = f2fs_init_bio_entry_cache();
3888 if (err)
3889 goto free_post_read;
f543805f
CY		 3890 err = f2fs_init_bioset();
3891 if (err)
3892 goto free_bio_enrty_cache;
9890ff3f 3893 return 0;
f543805f
CY		 3894free_bio_enrty_cache:
3895 f2fs_destroy_bio_entry_cache();
0b20fcec
CY		 3896free_post_read:
3897 f2fs_destroy_post_read_processing();
6dbb1796
EB		 3898free_root_stats:
3899 f2fs_destroy_root_stats();
787c7b8c 3900 unregister_filesystem(&f2fs_fs_type);
2658e50d
JK		 3901free_shrinker:
3902 unregister_shrinker(&f2fs_shrinker_info);
a398101a 3903free_sysfs:
dc6b2055 3904 f2fs_exit_sysfs();
1dcc336b 3905free_extent_cache:
4d57b86d 3906 f2fs_destroy_extent_cache();
9890ff3f 3907free_checkpoint_caches:
4d57b86d 3908 f2fs_destroy_checkpoint_caches();
7fd9e544 3909free_segment_manager_caches:
4d57b86d 3910 f2fs_destroy_segment_manager_caches();
9890ff3f 3911free_node_manager_caches:
4d57b86d 3912 f2fs_destroy_node_manager_caches();
9890ff3f
ZH		 3913free_inodecache:
3914 destroy_inodecache();
aff063e2
JK		 3915fail:
3916 return err;
3917}
3918
3919static void __exit exit_f2fs_fs(void)
3920{
f543805f 3921 f2fs_destroy_bioset();
0b20fcec 3922 f2fs_destroy_bio_entry_cache();
6dbb1796 3923 f2fs_destroy_post_read_processing();
4589d25d 3924 f2fs_destroy_root_stats();
aff063e2 3925 unregister_filesystem(&f2fs_fs_type);
b8bef79d 3926 unregister_shrinker(&f2fs_shrinker_info);
dc6b2055 3927 f2fs_exit_sysfs();
4d57b86d
CY		 3928 f2fs_destroy_extent_cache();
3929 f2fs_destroy_checkpoint_caches();
3930 f2fs_destroy_segment_manager_caches();
3931 f2fs_destroy_node_manager_caches();
aff063e2 3932 destroy_inodecache();
351f4fba 3933 f2fs_destroy_trace_ios();
aff063e2
JK		 3934}
3935
3936module_init(init_f2fs_fs)
3937module_exit(exit_f2fs_fs)
3938
3939MODULE_AUTHOR("Samsung Electronics's Praesto Team");
3940MODULE_DESCRIPTION("Flash Friendly File System");
3941MODULE_LICENSE("GPL");
b4b9d34c 3942
Linux 6.x block layer and io_uring tree(s)