1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
8 #include <linux/module.h>
9 #include <linux/init.h>
11 #include <linux/fs_context.h>
12 #include <linux/sched/mm.h>
13 #include <linux/statfs.h>
14 #include <linux/buffer_head.h>
15 #include <linux/kthread.h>
16 #include <linux/parser.h>
17 #include <linux/mount.h>
18 #include <linux/seq_file.h>
19 #include <linux/proc_fs.h>
20 #include <linux/random.h>
21 #include <linux/exportfs.h>
22 #include <linux/blkdev.h>
23 #include <linux/quotaops.h>
24 #include <linux/f2fs_fs.h>
25 #include <linux/sysfs.h>
26 #include <linux/quota.h>
27 #include <linux/unicode.h>
28 #include <linux/part_stat.h>
29 #include <linux/zstd.h>
30 #include <linux/lz4.h>
39 #define CREATE_TRACE_POINTS
40 #include <trace/events/f2fs.h>
42 static struct kmem_cache
*f2fs_inode_cachep
;
44 #ifdef CONFIG_F2FS_FAULT_INJECTION
46 const char *f2fs_fault_name
[FAULT_MAX
] = {
47 [FAULT_KMALLOC
] = "kmalloc",
48 [FAULT_KVMALLOC
] = "kvmalloc",
49 [FAULT_PAGE_ALLOC
] = "page alloc",
50 [FAULT_PAGE_GET
] = "page get",
51 [FAULT_ALLOC_NID
] = "alloc nid",
52 [FAULT_ORPHAN
] = "orphan",
53 [FAULT_BLOCK
] = "no more block",
54 [FAULT_DIR_DEPTH
] = "too big dir depth",
55 [FAULT_EVICT_INODE
] = "evict_inode fail",
56 [FAULT_TRUNCATE
] = "truncate fail",
57 [FAULT_READ_IO
] = "read IO error",
58 [FAULT_CHECKPOINT
] = "checkpoint error",
59 [FAULT_DISCARD
] = "discard error",
60 [FAULT_WRITE_IO
] = "write IO error",
61 [FAULT_SLAB_ALLOC
] = "slab alloc",
62 [FAULT_DQUOT_INIT
] = "dquot initialize",
63 [FAULT_LOCK_OP
] = "lock_op",
64 [FAULT_BLKADDR
] = "invalid blkaddr",
67 void f2fs_build_fault_attr(struct f2fs_sb_info
*sbi
, unsigned int rate
,
70 struct f2fs_fault_info
*ffi
= &F2FS_OPTION(sbi
).fault_info
;
73 atomic_set(&ffi
->inject_ops
, 0);
74 ffi
->inject_rate
= rate
;
78 ffi
->inject_type
= type
;
81 memset(ffi
, 0, sizeof(struct f2fs_fault_info
));
85 /* f2fs-wide shrinker description */
86 static struct shrinker
*f2fs_shrinker_info
;
88 static int __init
f2fs_init_shrinker(void)
90 f2fs_shrinker_info
= shrinker_alloc(0, "f2fs-shrinker");
91 if (!f2fs_shrinker_info
)
94 f2fs_shrinker_info
->count_objects
= f2fs_shrink_count
;
95 f2fs_shrinker_info
->scan_objects
= f2fs_shrink_scan
;
97 shrinker_register(f2fs_shrinker_info
);
102 static void f2fs_exit_shrinker(void)
104 shrinker_free(f2fs_shrinker_info
);
109 Opt_disable_roll_forward
,
120 Opt_disable_ext_identify
,
123 Opt_inline_xattr_size
,
161 Opt_test_dummy_encryption
,
163 Opt_checkpoint_disable
,
164 Opt_checkpoint_disable_cap
,
165 Opt_checkpoint_disable_cap_perc
,
166 Opt_checkpoint_enable
,
167 Opt_checkpoint_merge
,
168 Opt_nocheckpoint_merge
,
169 Opt_compress_algorithm
,
170 Opt_compress_log_size
,
171 Opt_compress_extension
,
172 Opt_nocompress_extension
,
181 Opt_age_extent_cache
,
186 static match_table_t f2fs_tokens
= {
187 {Opt_gc_background
, "background_gc=%s"},
188 {Opt_disable_roll_forward
, "disable_roll_forward"},
189 {Opt_norecovery
, "norecovery"},
190 {Opt_discard
, "discard"},
191 {Opt_nodiscard
, "nodiscard"},
192 {Opt_noheap
, "no_heap"},
194 {Opt_user_xattr
, "user_xattr"},
195 {Opt_nouser_xattr
, "nouser_xattr"},
197 {Opt_noacl
, "noacl"},
198 {Opt_active_logs
, "active_logs=%u"},
199 {Opt_disable_ext_identify
, "disable_ext_identify"},
200 {Opt_inline_xattr
, "inline_xattr"},
201 {Opt_noinline_xattr
, "noinline_xattr"},
202 {Opt_inline_xattr_size
, "inline_xattr_size=%u"},
203 {Opt_inline_data
, "inline_data"},
204 {Opt_inline_dentry
, "inline_dentry"},
205 {Opt_noinline_dentry
, "noinline_dentry"},
206 {Opt_flush_merge
, "flush_merge"},
207 {Opt_noflush_merge
, "noflush_merge"},
208 {Opt_barrier
, "barrier"},
209 {Opt_nobarrier
, "nobarrier"},
210 {Opt_fastboot
, "fastboot"},
211 {Opt_extent_cache
, "extent_cache"},
212 {Opt_noextent_cache
, "noextent_cache"},
213 {Opt_noinline_data
, "noinline_data"},
214 {Opt_data_flush
, "data_flush"},
215 {Opt_reserve_root
, "reserve_root=%u"},
216 {Opt_resgid
, "resgid=%u"},
217 {Opt_resuid
, "resuid=%u"},
218 {Opt_mode
, "mode=%s"},
219 {Opt_io_size_bits
, "io_bits=%u"},
220 {Opt_fault_injection
, "fault_injection=%u"},
221 {Opt_fault_type
, "fault_type=%u"},
222 {Opt_lazytime
, "lazytime"},
223 {Opt_nolazytime
, "nolazytime"},
224 {Opt_quota
, "quota"},
225 {Opt_noquota
, "noquota"},
226 {Opt_usrquota
, "usrquota"},
227 {Opt_grpquota
, "grpquota"},
228 {Opt_prjquota
, "prjquota"},
229 {Opt_usrjquota
, "usrjquota=%s"},
230 {Opt_grpjquota
, "grpjquota=%s"},
231 {Opt_prjjquota
, "prjjquota=%s"},
232 {Opt_offusrjquota
, "usrjquota="},
233 {Opt_offgrpjquota
, "grpjquota="},
234 {Opt_offprjjquota
, "prjjquota="},
235 {Opt_jqfmt_vfsold
, "jqfmt=vfsold"},
236 {Opt_jqfmt_vfsv0
, "jqfmt=vfsv0"},
237 {Opt_jqfmt_vfsv1
, "jqfmt=vfsv1"},
238 {Opt_alloc
, "alloc_mode=%s"},
239 {Opt_fsync
, "fsync_mode=%s"},
240 {Opt_test_dummy_encryption
, "test_dummy_encryption=%s"},
241 {Opt_test_dummy_encryption
, "test_dummy_encryption"},
242 {Opt_inlinecrypt
, "inlinecrypt"},
243 {Opt_checkpoint_disable
, "checkpoint=disable"},
244 {Opt_checkpoint_disable_cap
, "checkpoint=disable:%u"},
245 {Opt_checkpoint_disable_cap_perc
, "checkpoint=disable:%u%%"},
246 {Opt_checkpoint_enable
, "checkpoint=enable"},
247 {Opt_checkpoint_merge
, "checkpoint_merge"},
248 {Opt_nocheckpoint_merge
, "nocheckpoint_merge"},
249 {Opt_compress_algorithm
, "compress_algorithm=%s"},
250 {Opt_compress_log_size
, "compress_log_size=%u"},
251 {Opt_compress_extension
, "compress_extension=%s"},
252 {Opt_nocompress_extension
, "nocompress_extension=%s"},
253 {Opt_compress_chksum
, "compress_chksum"},
254 {Opt_compress_mode
, "compress_mode=%s"},
255 {Opt_compress_cache
, "compress_cache"},
257 {Opt_gc_merge
, "gc_merge"},
258 {Opt_nogc_merge
, "nogc_merge"},
259 {Opt_discard_unit
, "discard_unit=%s"},
260 {Opt_memory_mode
, "memory=%s"},
261 {Opt_age_extent_cache
, "age_extent_cache"},
262 {Opt_errors
, "errors=%s"},
266 void f2fs_printk(struct f2fs_sb_info
*sbi
, const char *fmt
, ...)
268 struct va_format vaf
;
274 level
= printk_get_level(fmt
);
275 vaf
.fmt
= printk_skip_level(fmt
);
277 printk("%c%cF2FS-fs (%s): %pV\n",
278 KERN_SOH_ASCII
, level
, sbi
->sb
->s_id
, &vaf
);
283 #if IS_ENABLED(CONFIG_UNICODE)
284 static const struct f2fs_sb_encodings
{
287 unsigned int version
;
288 } f2fs_sb_encoding_map
[] = {
289 {F2FS_ENC_UTF8_12_1
, "utf8", UNICODE_AGE(12, 1, 0)},
292 static const struct f2fs_sb_encodings
*
293 f2fs_sb_read_encoding(const struct f2fs_super_block
*sb
)
295 __u16 magic
= le16_to_cpu(sb
->s_encoding
);
298 for (i
= 0; i
< ARRAY_SIZE(f2fs_sb_encoding_map
); i
++)
299 if (magic
== f2fs_sb_encoding_map
[i
].magic
)
300 return &f2fs_sb_encoding_map
[i
];
305 struct kmem_cache
*f2fs_cf_name_slab
;
306 static int __init
f2fs_create_casefold_cache(void)
308 f2fs_cf_name_slab
= f2fs_kmem_cache_create("f2fs_casefolded_name",
310 return f2fs_cf_name_slab
? 0 : -ENOMEM
;
313 static void f2fs_destroy_casefold_cache(void)
315 kmem_cache_destroy(f2fs_cf_name_slab
);
318 static int __init
f2fs_create_casefold_cache(void) { return 0; }
319 static void f2fs_destroy_casefold_cache(void) { }
322 static inline void limit_reserve_root(struct f2fs_sb_info
*sbi
)
324 block_t limit
= min((sbi
->user_block_count
>> 3),
325 sbi
->user_block_count
- sbi
->reserved_blocks
);
328 if (test_opt(sbi
, RESERVE_ROOT
) &&
329 F2FS_OPTION(sbi
).root_reserved_blocks
> limit
) {
330 F2FS_OPTION(sbi
).root_reserved_blocks
= limit
;
331 f2fs_info(sbi
, "Reduce reserved blocks for root = %u",
332 F2FS_OPTION(sbi
).root_reserved_blocks
);
334 if (!test_opt(sbi
, RESERVE_ROOT
) &&
335 (!uid_eq(F2FS_OPTION(sbi
).s_resuid
,
336 make_kuid(&init_user_ns
, F2FS_DEF_RESUID
)) ||
337 !gid_eq(F2FS_OPTION(sbi
).s_resgid
,
338 make_kgid(&init_user_ns
, F2FS_DEF_RESGID
))))
339 f2fs_info(sbi
, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
340 from_kuid_munged(&init_user_ns
,
341 F2FS_OPTION(sbi
).s_resuid
),
342 from_kgid_munged(&init_user_ns
,
343 F2FS_OPTION(sbi
).s_resgid
));
346 static inline int adjust_reserved_segment(struct f2fs_sb_info
*sbi
)
348 unsigned int sec_blks
= sbi
->blocks_per_seg
* sbi
->segs_per_sec
;
349 unsigned int avg_vblocks
;
350 unsigned int wanted_reserved_segments
;
351 block_t avail_user_block_count
;
353 if (!F2FS_IO_ALIGNED(sbi
))
356 /* average valid block count in section in worst case */
357 avg_vblocks
= sec_blks
/ F2FS_IO_SIZE(sbi
);
360 * we need enough free space when migrating one section in worst case
362 wanted_reserved_segments
= (F2FS_IO_SIZE(sbi
) / avg_vblocks
) *
363 reserved_segments(sbi
);
364 wanted_reserved_segments
-= reserved_segments(sbi
);
366 avail_user_block_count
= sbi
->user_block_count
-
367 sbi
->current_reserved_blocks
-
368 F2FS_OPTION(sbi
).root_reserved_blocks
;
370 if (wanted_reserved_segments
* sbi
->blocks_per_seg
>
371 avail_user_block_count
) {
372 f2fs_err(sbi
, "IO align feature can't grab additional reserved segment: %u, available segments: %u",
373 wanted_reserved_segments
,
374 avail_user_block_count
>> sbi
->log_blocks_per_seg
);
378 SM_I(sbi
)->additional_reserved_segments
= wanted_reserved_segments
;
380 f2fs_info(sbi
, "IO align feature needs additional reserved segment: %u",
381 wanted_reserved_segments
);
386 static inline void adjust_unusable_cap_perc(struct f2fs_sb_info
*sbi
)
388 if (!F2FS_OPTION(sbi
).unusable_cap_perc
)
391 if (F2FS_OPTION(sbi
).unusable_cap_perc
== 100)
392 F2FS_OPTION(sbi
).unusable_cap
= sbi
->user_block_count
;
394 F2FS_OPTION(sbi
).unusable_cap
= (sbi
->user_block_count
/ 100) *
395 F2FS_OPTION(sbi
).unusable_cap_perc
;
397 f2fs_info(sbi
, "Adjust unusable cap for checkpoint=disable = %u / %u%%",
398 F2FS_OPTION(sbi
).unusable_cap
,
399 F2FS_OPTION(sbi
).unusable_cap_perc
);
402 static void init_once(void *foo
)
404 struct f2fs_inode_info
*fi
= (struct f2fs_inode_info
*) foo
;
406 inode_init_once(&fi
->vfs_inode
);
410 static const char * const quotatypes
[] = INITQFNAMES
;
411 #define QTYPE2NAME(t) (quotatypes[t])
412 static int f2fs_set_qf_name(struct super_block
*sb
, int qtype
,
415 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
419 if (sb_any_quota_loaded(sb
) && !F2FS_OPTION(sbi
).s_qf_names
[qtype
]) {
420 f2fs_err(sbi
, "Cannot change journaled quota options when quota turned on");
423 if (f2fs_sb_has_quota_ino(sbi
)) {
424 f2fs_info(sbi
, "QUOTA feature is enabled, so ignore qf_name");
428 qname
= match_strdup(args
);
430 f2fs_err(sbi
, "Not enough memory for storing quotafile name");
433 if (F2FS_OPTION(sbi
).s_qf_names
[qtype
]) {
434 if (strcmp(F2FS_OPTION(sbi
).s_qf_names
[qtype
], qname
) == 0)
437 f2fs_err(sbi
, "%s quota file already specified",
441 if (strchr(qname
, '/')) {
442 f2fs_err(sbi
, "quotafile must be on filesystem root");
445 F2FS_OPTION(sbi
).s_qf_names
[qtype
] = qname
;
453 static int f2fs_clear_qf_name(struct super_block
*sb
, int qtype
)
455 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
457 if (sb_any_quota_loaded(sb
) && F2FS_OPTION(sbi
).s_qf_names
[qtype
]) {
458 f2fs_err(sbi
, "Cannot change journaled quota options when quota turned on");
461 kfree(F2FS_OPTION(sbi
).s_qf_names
[qtype
]);
462 F2FS_OPTION(sbi
).s_qf_names
[qtype
] = NULL
;
466 static int f2fs_check_quota_options(struct f2fs_sb_info
*sbi
)
469 * We do the test below only for project quotas. 'usrquota' and
470 * 'grpquota' mount options are allowed even without quota feature
471 * to support legacy quotas in quota files.
473 if (test_opt(sbi
, PRJQUOTA
) && !f2fs_sb_has_project_quota(sbi
)) {
474 f2fs_err(sbi
, "Project quota feature not enabled. Cannot enable project quota enforcement.");
477 if (F2FS_OPTION(sbi
).s_qf_names
[USRQUOTA
] ||
478 F2FS_OPTION(sbi
).s_qf_names
[GRPQUOTA
] ||
479 F2FS_OPTION(sbi
).s_qf_names
[PRJQUOTA
]) {
480 if (test_opt(sbi
, USRQUOTA
) &&
481 F2FS_OPTION(sbi
).s_qf_names
[USRQUOTA
])
482 clear_opt(sbi
, USRQUOTA
);
484 if (test_opt(sbi
, GRPQUOTA
) &&
485 F2FS_OPTION(sbi
).s_qf_names
[GRPQUOTA
])
486 clear_opt(sbi
, GRPQUOTA
);
488 if (test_opt(sbi
, PRJQUOTA
) &&
489 F2FS_OPTION(sbi
).s_qf_names
[PRJQUOTA
])
490 clear_opt(sbi
, PRJQUOTA
);
492 if (test_opt(sbi
, GRPQUOTA
) || test_opt(sbi
, USRQUOTA
) ||
493 test_opt(sbi
, PRJQUOTA
)) {
494 f2fs_err(sbi
, "old and new quota format mixing");
498 if (!F2FS_OPTION(sbi
).s_jquota_fmt
) {
499 f2fs_err(sbi
, "journaled quota format not specified");
504 if (f2fs_sb_has_quota_ino(sbi
) && F2FS_OPTION(sbi
).s_jquota_fmt
) {
505 f2fs_info(sbi
, "QUOTA feature is enabled, so ignore jquota_fmt");
506 F2FS_OPTION(sbi
).s_jquota_fmt
= 0;
512 static int f2fs_set_test_dummy_encryption(struct super_block
*sb
,
514 const substring_t
*arg
,
517 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
518 struct fs_parameter param
= {
519 .type
= fs_value_is_string
,
520 .string
= arg
->from
? arg
->from
: "",
522 struct fscrypt_dummy_policy
*policy
=
523 &F2FS_OPTION(sbi
).dummy_enc_policy
;
526 if (!IS_ENABLED(CONFIG_FS_ENCRYPTION
)) {
527 f2fs_warn(sbi
, "test_dummy_encryption option not supported");
531 if (!f2fs_sb_has_encrypt(sbi
)) {
532 f2fs_err(sbi
, "Encrypt feature is off");
537 * This mount option is just for testing, and it's not worthwhile to
538 * implement the extra complexity (e.g. RCU protection) that would be
539 * needed to allow it to be set or changed during remount. We do allow
540 * it to be specified during remount, but only if there is no change.
542 if (is_remount
&& !fscrypt_is_dummy_policy_set(policy
)) {
543 f2fs_warn(sbi
, "Can't set test_dummy_encryption on remount");
547 err
= fscrypt_parse_test_dummy_encryption(¶m
, policy
);
551 "Can't change test_dummy_encryption on remount");
552 else if (err
== -EINVAL
)
553 f2fs_warn(sbi
, "Value of option \"%s\" is unrecognized",
556 f2fs_warn(sbi
, "Error processing option \"%s\" [%d]",
560 f2fs_warn(sbi
, "Test dummy encryption mode enabled");
564 #ifdef CONFIG_F2FS_FS_COMPRESSION
565 static bool is_compress_extension_exist(struct f2fs_sb_info
*sbi
,
566 const char *new_ext
, bool is_ext
)
568 unsigned char (*ext
)[F2FS_EXTENSION_LEN
];
573 ext
= F2FS_OPTION(sbi
).extensions
;
574 ext_cnt
= F2FS_OPTION(sbi
).compress_ext_cnt
;
576 ext
= F2FS_OPTION(sbi
).noextensions
;
577 ext_cnt
= F2FS_OPTION(sbi
).nocompress_ext_cnt
;
580 for (i
= 0; i
< ext_cnt
; i
++) {
581 if (!strcasecmp(new_ext
, ext
[i
]))
589 * 1. The same extension name cannot not appear in both compress and non-compress extension
591 * 2. If the compress extension specifies all files, the types specified by the non-compress
592 * extension will be treated as special cases and will not be compressed.
593 * 3. Don't allow the non-compress extension specifies all files.
595 static int f2fs_test_compress_extension(struct f2fs_sb_info
*sbi
)
597 unsigned char (*ext
)[F2FS_EXTENSION_LEN
];
598 unsigned char (*noext
)[F2FS_EXTENSION_LEN
];
599 int ext_cnt
, noext_cnt
, index
= 0, no_index
= 0;
601 ext
= F2FS_OPTION(sbi
).extensions
;
602 ext_cnt
= F2FS_OPTION(sbi
).compress_ext_cnt
;
603 noext
= F2FS_OPTION(sbi
).noextensions
;
604 noext_cnt
= F2FS_OPTION(sbi
).nocompress_ext_cnt
;
609 for (no_index
= 0; no_index
< noext_cnt
; no_index
++) {
610 if (!strcasecmp("*", noext
[no_index
])) {
611 f2fs_info(sbi
, "Don't allow the nocompress extension specifies all files");
614 for (index
= 0; index
< ext_cnt
; index
++) {
615 if (!strcasecmp(ext
[index
], noext
[no_index
])) {
616 f2fs_info(sbi
, "Don't allow the same extension %s appear in both compress and nocompress extension",
625 #ifdef CONFIG_F2FS_FS_LZ4
626 static int f2fs_set_lz4hc_level(struct f2fs_sb_info
*sbi
, const char *str
)
628 #ifdef CONFIG_F2FS_FS_LZ4HC
631 if (strlen(str
) == 3) {
632 F2FS_OPTION(sbi
).compress_level
= 0;
639 f2fs_info(sbi
, "wrong format, e.g. <alg_name>:<compr_level>");
642 if (kstrtouint(str
+ 1, 10, &level
))
645 if (!f2fs_is_compress_level_valid(COMPRESS_LZ4
, level
)) {
646 f2fs_info(sbi
, "invalid lz4hc compress level: %d", level
);
650 F2FS_OPTION(sbi
).compress_level
= level
;
653 if (strlen(str
) == 3) {
654 F2FS_OPTION(sbi
).compress_level
= 0;
657 f2fs_info(sbi
, "kernel doesn't support lz4hc compression");
663 #ifdef CONFIG_F2FS_FS_ZSTD
664 static int f2fs_set_zstd_level(struct f2fs_sb_info
*sbi
, const char *str
)
669 if (strlen(str
) == len
) {
670 F2FS_OPTION(sbi
).compress_level
= F2FS_ZSTD_DEFAULT_CLEVEL
;
677 f2fs_info(sbi
, "wrong format, e.g. <alg_name>:<compr_level>");
680 if (kstrtouint(str
+ 1, 10, &level
))
683 if (!f2fs_is_compress_level_valid(COMPRESS_ZSTD
, level
)) {
684 f2fs_info(sbi
, "invalid zstd compress level: %d", level
);
688 F2FS_OPTION(sbi
).compress_level
= level
;
694 static int parse_options(struct super_block
*sb
, char *options
, bool is_remount
)
696 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
697 substring_t args
[MAX_OPT_ARGS
];
698 #ifdef CONFIG_F2FS_FS_COMPRESSION
699 unsigned char (*ext
)[F2FS_EXTENSION_LEN
];
700 unsigned char (*noext
)[F2FS_EXTENSION_LEN
];
701 int ext_cnt
, noext_cnt
;
712 while ((p
= strsep(&options
, ",")) != NULL
) {
718 * Initialize args struct so we know whether arg was
719 * found; some options take optional arguments.
721 args
[0].to
= args
[0].from
= NULL
;
722 token
= match_token(p
, f2fs_tokens
, args
);
725 case Opt_gc_background
:
726 name
= match_strdup(&args
[0]);
730 if (!strcmp(name
, "on")) {
731 F2FS_OPTION(sbi
).bggc_mode
= BGGC_MODE_ON
;
732 } else if (!strcmp(name
, "off")) {
733 F2FS_OPTION(sbi
).bggc_mode
= BGGC_MODE_OFF
;
734 } else if (!strcmp(name
, "sync")) {
735 F2FS_OPTION(sbi
).bggc_mode
= BGGC_MODE_SYNC
;
742 case Opt_disable_roll_forward
:
743 set_opt(sbi
, DISABLE_ROLL_FORWARD
);
746 /* this option mounts f2fs with ro */
747 set_opt(sbi
, NORECOVERY
);
748 if (!f2fs_readonly(sb
))
752 if (!f2fs_hw_support_discard(sbi
)) {
753 f2fs_warn(sbi
, "device does not support discard");
756 set_opt(sbi
, DISCARD
);
759 if (f2fs_hw_should_discard(sbi
)) {
760 f2fs_warn(sbi
, "discard is required for zoned block devices");
763 clear_opt(sbi
, DISCARD
);
766 set_opt(sbi
, NOHEAP
);
769 clear_opt(sbi
, NOHEAP
);
771 #ifdef CONFIG_F2FS_FS_XATTR
773 set_opt(sbi
, XATTR_USER
);
775 case Opt_nouser_xattr
:
776 clear_opt(sbi
, XATTR_USER
);
778 case Opt_inline_xattr
:
779 set_opt(sbi
, INLINE_XATTR
);
781 case Opt_noinline_xattr
:
782 clear_opt(sbi
, INLINE_XATTR
);
784 case Opt_inline_xattr_size
:
785 if (args
->from
&& match_int(args
, &arg
))
787 set_opt(sbi
, INLINE_XATTR_SIZE
);
788 F2FS_OPTION(sbi
).inline_xattr_size
= arg
;
792 f2fs_info(sbi
, "user_xattr options not supported");
794 case Opt_nouser_xattr
:
795 f2fs_info(sbi
, "nouser_xattr options not supported");
797 case Opt_inline_xattr
:
798 f2fs_info(sbi
, "inline_xattr options not supported");
800 case Opt_noinline_xattr
:
801 f2fs_info(sbi
, "noinline_xattr options not supported");
804 #ifdef CONFIG_F2FS_FS_POSIX_ACL
806 set_opt(sbi
, POSIX_ACL
);
809 clear_opt(sbi
, POSIX_ACL
);
813 f2fs_info(sbi
, "acl options not supported");
816 f2fs_info(sbi
, "noacl options not supported");
819 case Opt_active_logs
:
820 if (args
->from
&& match_int(args
, &arg
))
822 if (arg
!= 2 && arg
!= 4 &&
823 arg
!= NR_CURSEG_PERSIST_TYPE
)
825 F2FS_OPTION(sbi
).active_logs
= arg
;
827 case Opt_disable_ext_identify
:
828 set_opt(sbi
, DISABLE_EXT_IDENTIFY
);
830 case Opt_inline_data
:
831 set_opt(sbi
, INLINE_DATA
);
833 case Opt_inline_dentry
:
834 set_opt(sbi
, INLINE_DENTRY
);
836 case Opt_noinline_dentry
:
837 clear_opt(sbi
, INLINE_DENTRY
);
839 case Opt_flush_merge
:
840 set_opt(sbi
, FLUSH_MERGE
);
842 case Opt_noflush_merge
:
843 clear_opt(sbi
, FLUSH_MERGE
);
846 set_opt(sbi
, NOBARRIER
);
849 clear_opt(sbi
, NOBARRIER
);
852 set_opt(sbi
, FASTBOOT
);
854 case Opt_extent_cache
:
855 set_opt(sbi
, READ_EXTENT_CACHE
);
857 case Opt_noextent_cache
:
858 clear_opt(sbi
, READ_EXTENT_CACHE
);
860 case Opt_noinline_data
:
861 clear_opt(sbi
, INLINE_DATA
);
864 set_opt(sbi
, DATA_FLUSH
);
866 case Opt_reserve_root
:
867 if (args
->from
&& match_int(args
, &arg
))
869 if (test_opt(sbi
, RESERVE_ROOT
)) {
870 f2fs_info(sbi
, "Preserve previous reserve_root=%u",
871 F2FS_OPTION(sbi
).root_reserved_blocks
);
873 F2FS_OPTION(sbi
).root_reserved_blocks
= arg
;
874 set_opt(sbi
, RESERVE_ROOT
);
878 if (args
->from
&& match_int(args
, &arg
))
880 uid
= make_kuid(current_user_ns(), arg
);
881 if (!uid_valid(uid
)) {
882 f2fs_err(sbi
, "Invalid uid value %d", arg
);
885 F2FS_OPTION(sbi
).s_resuid
= uid
;
888 if (args
->from
&& match_int(args
, &arg
))
890 gid
= make_kgid(current_user_ns(), arg
);
891 if (!gid_valid(gid
)) {
892 f2fs_err(sbi
, "Invalid gid value %d", arg
);
895 F2FS_OPTION(sbi
).s_resgid
= gid
;
898 name
= match_strdup(&args
[0]);
902 if (!strcmp(name
, "adaptive")) {
903 F2FS_OPTION(sbi
).fs_mode
= FS_MODE_ADAPTIVE
;
904 } else if (!strcmp(name
, "lfs")) {
905 F2FS_OPTION(sbi
).fs_mode
= FS_MODE_LFS
;
906 } else if (!strcmp(name
, "fragment:segment")) {
907 F2FS_OPTION(sbi
).fs_mode
= FS_MODE_FRAGMENT_SEG
;
908 } else if (!strcmp(name
, "fragment:block")) {
909 F2FS_OPTION(sbi
).fs_mode
= FS_MODE_FRAGMENT_BLK
;
916 case Opt_io_size_bits
:
917 if (args
->from
&& match_int(args
, &arg
))
919 if (arg
<= 0 || arg
> __ilog2_u32(BIO_MAX_VECS
)) {
920 f2fs_warn(sbi
, "Not support %ld, larger than %d",
921 BIT(arg
), BIO_MAX_VECS
);
924 F2FS_OPTION(sbi
).write_io_size_bits
= arg
;
926 #ifdef CONFIG_F2FS_FAULT_INJECTION
927 case Opt_fault_injection
:
928 if (args
->from
&& match_int(args
, &arg
))
930 f2fs_build_fault_attr(sbi
, arg
, F2FS_ALL_FAULT_TYPE
);
931 set_opt(sbi
, FAULT_INJECTION
);
935 if (args
->from
&& match_int(args
, &arg
))
937 f2fs_build_fault_attr(sbi
, 0, arg
);
938 set_opt(sbi
, FAULT_INJECTION
);
941 case Opt_fault_injection
:
942 f2fs_info(sbi
, "fault_injection options not supported");
946 f2fs_info(sbi
, "fault_type options not supported");
950 sb
->s_flags
|= SB_LAZYTIME
;
953 sb
->s_flags
&= ~SB_LAZYTIME
;
958 set_opt(sbi
, USRQUOTA
);
961 set_opt(sbi
, GRPQUOTA
);
964 set_opt(sbi
, PRJQUOTA
);
967 ret
= f2fs_set_qf_name(sb
, USRQUOTA
, &args
[0]);
972 ret
= f2fs_set_qf_name(sb
, GRPQUOTA
, &args
[0]);
977 ret
= f2fs_set_qf_name(sb
, PRJQUOTA
, &args
[0]);
981 case Opt_offusrjquota
:
982 ret
= f2fs_clear_qf_name(sb
, USRQUOTA
);
986 case Opt_offgrpjquota
:
987 ret
= f2fs_clear_qf_name(sb
, GRPQUOTA
);
991 case Opt_offprjjquota
:
992 ret
= f2fs_clear_qf_name(sb
, PRJQUOTA
);
996 case Opt_jqfmt_vfsold
:
997 F2FS_OPTION(sbi
).s_jquota_fmt
= QFMT_VFS_OLD
;
999 case Opt_jqfmt_vfsv0
:
1000 F2FS_OPTION(sbi
).s_jquota_fmt
= QFMT_VFS_V0
;
1002 case Opt_jqfmt_vfsv1
:
1003 F2FS_OPTION(sbi
).s_jquota_fmt
= QFMT_VFS_V1
;
1006 clear_opt(sbi
, QUOTA
);
1007 clear_opt(sbi
, USRQUOTA
);
1008 clear_opt(sbi
, GRPQUOTA
);
1009 clear_opt(sbi
, PRJQUOTA
);
1019 case Opt_offusrjquota
:
1020 case Opt_offgrpjquota
:
1021 case Opt_offprjjquota
:
1022 case Opt_jqfmt_vfsold
:
1023 case Opt_jqfmt_vfsv0
:
1024 case Opt_jqfmt_vfsv1
:
1026 f2fs_info(sbi
, "quota operations not supported");
1030 name
= match_strdup(&args
[0]);
1034 if (!strcmp(name
, "default")) {
1035 F2FS_OPTION(sbi
).alloc_mode
= ALLOC_MODE_DEFAULT
;
1036 } else if (!strcmp(name
, "reuse")) {
1037 F2FS_OPTION(sbi
).alloc_mode
= ALLOC_MODE_REUSE
;
1045 name
= match_strdup(&args
[0]);
1048 if (!strcmp(name
, "posix")) {
1049 F2FS_OPTION(sbi
).fsync_mode
= FSYNC_MODE_POSIX
;
1050 } else if (!strcmp(name
, "strict")) {
1051 F2FS_OPTION(sbi
).fsync_mode
= FSYNC_MODE_STRICT
;
1052 } else if (!strcmp(name
, "nobarrier")) {
1053 F2FS_OPTION(sbi
).fsync_mode
=
1054 FSYNC_MODE_NOBARRIER
;
1061 case Opt_test_dummy_encryption
:
1062 ret
= f2fs_set_test_dummy_encryption(sb
, p
, &args
[0],
1067 case Opt_inlinecrypt
:
1068 #ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
1069 sb
->s_flags
|= SB_INLINECRYPT
;
1071 f2fs_info(sbi
, "inline encryption not supported");
1074 case Opt_checkpoint_disable_cap_perc
:
1075 if (args
->from
&& match_int(args
, &arg
))
1077 if (arg
< 0 || arg
> 100)
1079 F2FS_OPTION(sbi
).unusable_cap_perc
= arg
;
1080 set_opt(sbi
, DISABLE_CHECKPOINT
);
1082 case Opt_checkpoint_disable_cap
:
1083 if (args
->from
&& match_int(args
, &arg
))
1085 F2FS_OPTION(sbi
).unusable_cap
= arg
;
1086 set_opt(sbi
, DISABLE_CHECKPOINT
);
1088 case Opt_checkpoint_disable
:
1089 set_opt(sbi
, DISABLE_CHECKPOINT
);
1091 case Opt_checkpoint_enable
:
1092 clear_opt(sbi
, DISABLE_CHECKPOINT
);
1094 case Opt_checkpoint_merge
:
1095 set_opt(sbi
, MERGE_CHECKPOINT
);
1097 case Opt_nocheckpoint_merge
:
1098 clear_opt(sbi
, MERGE_CHECKPOINT
);
1100 #ifdef CONFIG_F2FS_FS_COMPRESSION
1101 case Opt_compress_algorithm
:
1102 if (!f2fs_sb_has_compression(sbi
)) {
1103 f2fs_info(sbi
, "Image doesn't support compression");
1106 name
= match_strdup(&args
[0]);
1109 if (!strcmp(name
, "lzo")) {
1110 #ifdef CONFIG_F2FS_FS_LZO
1111 F2FS_OPTION(sbi
).compress_level
= 0;
1112 F2FS_OPTION(sbi
).compress_algorithm
=
1115 f2fs_info(sbi
, "kernel doesn't support lzo compression");
1117 } else if (!strncmp(name
, "lz4", 3)) {
1118 #ifdef CONFIG_F2FS_FS_LZ4
1119 ret
= f2fs_set_lz4hc_level(sbi
, name
);
1124 F2FS_OPTION(sbi
).compress_algorithm
=
1127 f2fs_info(sbi
, "kernel doesn't support lz4 compression");
1129 } else if (!strncmp(name
, "zstd", 4)) {
1130 #ifdef CONFIG_F2FS_FS_ZSTD
1131 ret
= f2fs_set_zstd_level(sbi
, name
);
1136 F2FS_OPTION(sbi
).compress_algorithm
=
1139 f2fs_info(sbi
, "kernel doesn't support zstd compression");
1141 } else if (!strcmp(name
, "lzo-rle")) {
1142 #ifdef CONFIG_F2FS_FS_LZORLE
1143 F2FS_OPTION(sbi
).compress_level
= 0;
1144 F2FS_OPTION(sbi
).compress_algorithm
=
1147 f2fs_info(sbi
, "kernel doesn't support lzorle compression");
1155 case Opt_compress_log_size
:
1156 if (!f2fs_sb_has_compression(sbi
)) {
1157 f2fs_info(sbi
, "Image doesn't support compression");
1160 if (args
->from
&& match_int(args
, &arg
))
1162 if (arg
< MIN_COMPRESS_LOG_SIZE
||
1163 arg
> MAX_COMPRESS_LOG_SIZE
) {
1165 "Compress cluster log size is out of range");
1168 F2FS_OPTION(sbi
).compress_log_size
= arg
;
1170 case Opt_compress_extension
:
1171 if (!f2fs_sb_has_compression(sbi
)) {
1172 f2fs_info(sbi
, "Image doesn't support compression");
1175 name
= match_strdup(&args
[0]);
1179 ext
= F2FS_OPTION(sbi
).extensions
;
1180 ext_cnt
= F2FS_OPTION(sbi
).compress_ext_cnt
;
1182 if (strlen(name
) >= F2FS_EXTENSION_LEN
||
1183 ext_cnt
>= COMPRESS_EXT_NUM
) {
1185 "invalid extension length/number");
1190 if (is_compress_extension_exist(sbi
, name
, true)) {
1195 strcpy(ext
[ext_cnt
], name
);
1196 F2FS_OPTION(sbi
).compress_ext_cnt
++;
1199 case Opt_nocompress_extension
:
1200 if (!f2fs_sb_has_compression(sbi
)) {
1201 f2fs_info(sbi
, "Image doesn't support compression");
1204 name
= match_strdup(&args
[0]);
1208 noext
= F2FS_OPTION(sbi
).noextensions
;
1209 noext_cnt
= F2FS_OPTION(sbi
).nocompress_ext_cnt
;
1211 if (strlen(name
) >= F2FS_EXTENSION_LEN
||
1212 noext_cnt
>= COMPRESS_EXT_NUM
) {
1214 "invalid extension length/number");
1219 if (is_compress_extension_exist(sbi
, name
, false)) {
1224 strcpy(noext
[noext_cnt
], name
);
1225 F2FS_OPTION(sbi
).nocompress_ext_cnt
++;
1228 case Opt_compress_chksum
:
1229 if (!f2fs_sb_has_compression(sbi
)) {
1230 f2fs_info(sbi
, "Image doesn't support compression");
1233 F2FS_OPTION(sbi
).compress_chksum
= true;
1235 case Opt_compress_mode
:
1236 if (!f2fs_sb_has_compression(sbi
)) {
1237 f2fs_info(sbi
, "Image doesn't support compression");
1240 name
= match_strdup(&args
[0]);
1243 if (!strcmp(name
, "fs")) {
1244 F2FS_OPTION(sbi
).compress_mode
= COMPR_MODE_FS
;
1245 } else if (!strcmp(name
, "user")) {
1246 F2FS_OPTION(sbi
).compress_mode
= COMPR_MODE_USER
;
1253 case Opt_compress_cache
:
1254 if (!f2fs_sb_has_compression(sbi
)) {
1255 f2fs_info(sbi
, "Image doesn't support compression");
1258 set_opt(sbi
, COMPRESS_CACHE
);
1261 case Opt_compress_algorithm
:
1262 case Opt_compress_log_size
:
1263 case Opt_compress_extension
:
1264 case Opt_nocompress_extension
:
1265 case Opt_compress_chksum
:
1266 case Opt_compress_mode
:
1267 case Opt_compress_cache
:
1268 f2fs_info(sbi
, "compression options not supported");
1275 set_opt(sbi
, GC_MERGE
);
1277 case Opt_nogc_merge
:
1278 clear_opt(sbi
, GC_MERGE
);
1280 case Opt_discard_unit
:
1281 name
= match_strdup(&args
[0]);
1284 if (!strcmp(name
, "block")) {
1285 F2FS_OPTION(sbi
).discard_unit
=
1287 } else if (!strcmp(name
, "segment")) {
1288 F2FS_OPTION(sbi
).discard_unit
=
1289 DISCARD_UNIT_SEGMENT
;
1290 } else if (!strcmp(name
, "section")) {
1291 F2FS_OPTION(sbi
).discard_unit
=
1292 DISCARD_UNIT_SECTION
;
1299 case Opt_memory_mode
:
1300 name
= match_strdup(&args
[0]);
1303 if (!strcmp(name
, "normal")) {
1304 F2FS_OPTION(sbi
).memory_mode
=
1306 } else if (!strcmp(name
, "low")) {
1307 F2FS_OPTION(sbi
).memory_mode
=
1315 case Opt_age_extent_cache
:
1316 set_opt(sbi
, AGE_EXTENT_CACHE
);
1319 name
= match_strdup(&args
[0]);
1322 if (!strcmp(name
, "remount-ro")) {
1323 F2FS_OPTION(sbi
).errors
=
1324 MOUNT_ERRORS_READONLY
;
1325 } else if (!strcmp(name
, "continue")) {
1326 F2FS_OPTION(sbi
).errors
=
1327 MOUNT_ERRORS_CONTINUE
;
1328 } else if (!strcmp(name
, "panic")) {
1329 F2FS_OPTION(sbi
).errors
=
1338 f2fs_err(sbi
, "Unrecognized mount option \"%s\" or missing value",
1345 if (f2fs_check_quota_options(sbi
))
1348 if (f2fs_sb_has_quota_ino(sbi
) && !f2fs_readonly(sbi
->sb
)) {
1349 f2fs_info(sbi
, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
1352 if (f2fs_sb_has_project_quota(sbi
) && !f2fs_readonly(sbi
->sb
)) {
1353 f2fs_err(sbi
, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
1357 #if !IS_ENABLED(CONFIG_UNICODE)
1358 if (f2fs_sb_has_casefold(sbi
)) {
1360 "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
1365 * The BLKZONED feature indicates that the drive was formatted with
1366 * zone alignment optimization. This is optional for host-aware
1367 * devices, but mandatory for host-managed zoned block devices.
1369 if (f2fs_sb_has_blkzoned(sbi
)) {
1370 #ifdef CONFIG_BLK_DEV_ZONED
1371 if (F2FS_OPTION(sbi
).discard_unit
!=
1372 DISCARD_UNIT_SECTION
) {
1373 f2fs_info(sbi
, "Zoned block device doesn't need small discard, set discard_unit=section by default");
1374 F2FS_OPTION(sbi
).discard_unit
=
1375 DISCARD_UNIT_SECTION
;
1378 if (F2FS_OPTION(sbi
).fs_mode
!= FS_MODE_LFS
) {
1379 f2fs_info(sbi
, "Only lfs mode is allowed with zoned block device feature");
1383 f2fs_err(sbi
, "Zoned block device support is not enabled");
1388 #ifdef CONFIG_F2FS_FS_COMPRESSION
1389 if (f2fs_test_compress_extension(sbi
)) {
1390 f2fs_err(sbi
, "invalid compress or nocompress extension");
1395 if (F2FS_IO_SIZE_BITS(sbi
) && !f2fs_lfs_mode(sbi
)) {
1396 f2fs_err(sbi
, "Should set mode=lfs with %luKB-sized IO",
1397 F2FS_IO_SIZE_KB(sbi
));
1401 if (test_opt(sbi
, INLINE_XATTR_SIZE
)) {
1402 int min_size
, max_size
;
1404 if (!f2fs_sb_has_extra_attr(sbi
) ||
1405 !f2fs_sb_has_flexible_inline_xattr(sbi
)) {
1406 f2fs_err(sbi
, "extra_attr or flexible_inline_xattr feature is off");
1409 if (!test_opt(sbi
, INLINE_XATTR
)) {
1410 f2fs_err(sbi
, "inline_xattr_size option should be set with inline_xattr option");
1414 min_size
= MIN_INLINE_XATTR_SIZE
;
1415 max_size
= MAX_INLINE_XATTR_SIZE
;
1417 if (F2FS_OPTION(sbi
).inline_xattr_size
< min_size
||
1418 F2FS_OPTION(sbi
).inline_xattr_size
> max_size
) {
1419 f2fs_err(sbi
, "inline xattr size is out of range: %d ~ %d",
1420 min_size
, max_size
);
1425 if (test_opt(sbi
, ATGC
) && f2fs_lfs_mode(sbi
)) {
1426 f2fs_err(sbi
, "LFS is not compatible with ATGC");
1430 if (f2fs_is_readonly(sbi
) && test_opt(sbi
, FLUSH_MERGE
)) {
1431 f2fs_err(sbi
, "FLUSH_MERGE not compatible with readonly mode");
1435 if (f2fs_sb_has_readonly(sbi
) && !f2fs_readonly(sbi
->sb
)) {
1436 f2fs_err(sbi
, "Allow to mount readonly mode only");
1442 static struct inode
*f2fs_alloc_inode(struct super_block
*sb
)
1444 struct f2fs_inode_info
*fi
;
1446 if (time_to_inject(F2FS_SB(sb
), FAULT_SLAB_ALLOC
))
1449 fi
= alloc_inode_sb(sb
, f2fs_inode_cachep
, GFP_F2FS_ZERO
);
1453 init_once((void *) fi
);
1455 /* Initialize f2fs-specific inode info */
1456 atomic_set(&fi
->dirty_pages
, 0);
1457 atomic_set(&fi
->i_compr_blocks
, 0);
1458 init_f2fs_rwsem(&fi
->i_sem
);
1459 spin_lock_init(&fi
->i_size_lock
);
1460 INIT_LIST_HEAD(&fi
->dirty_list
);
1461 INIT_LIST_HEAD(&fi
->gdirty_list
);
1462 init_f2fs_rwsem(&fi
->i_gc_rwsem
[READ
]);
1463 init_f2fs_rwsem(&fi
->i_gc_rwsem
[WRITE
]);
1464 init_f2fs_rwsem(&fi
->i_xattr_sem
);
1466 /* Will be used by directory only */
1467 fi
->i_dir_level
= F2FS_SB(sb
)->dir_level
;
1469 return &fi
->vfs_inode
;
1472 static int f2fs_drop_inode(struct inode
*inode
)
1474 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
1478 * during filesystem shutdown, if checkpoint is disabled,
1479 * drop useless meta/node dirty pages.
1481 if (unlikely(is_sbi_flag_set(sbi
, SBI_CP_DISABLED
))) {
1482 if (inode
->i_ino
== F2FS_NODE_INO(sbi
) ||
1483 inode
->i_ino
== F2FS_META_INO(sbi
)) {
1484 trace_f2fs_drop_inode(inode
, 1);
1490 * This is to avoid a deadlock condition like below.
1491 * writeback_single_inode(inode)
1492 * - f2fs_write_data_page
1493 * - f2fs_gc -> iput -> evict
1494 * - inode_wait_for_writeback(inode)
1496 if ((!inode_unhashed(inode
) && inode
->i_state
& I_SYNC
)) {
1497 if (!inode
->i_nlink
&& !is_bad_inode(inode
)) {
1498 /* to avoid evict_inode call simultaneously */
1499 atomic_inc(&inode
->i_count
);
1500 spin_unlock(&inode
->i_lock
);
1502 /* should remain fi->extent_tree for writepage */
1503 f2fs_destroy_extent_node(inode
);
1505 sb_start_intwrite(inode
->i_sb
);
1506 f2fs_i_size_write(inode
, 0);
1508 f2fs_submit_merged_write_cond(F2FS_I_SB(inode
),
1509 inode
, NULL
, 0, DATA
);
1510 truncate_inode_pages_final(inode
->i_mapping
);
1512 if (F2FS_HAS_BLOCKS(inode
))
1513 f2fs_truncate(inode
);
1515 sb_end_intwrite(inode
->i_sb
);
1517 spin_lock(&inode
->i_lock
);
1518 atomic_dec(&inode
->i_count
);
1520 trace_f2fs_drop_inode(inode
, 0);
1523 ret
= generic_drop_inode(inode
);
1525 ret
= fscrypt_drop_inode(inode
);
1526 trace_f2fs_drop_inode(inode
, ret
);
1530 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
)
1532 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
1535 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
1536 if (is_inode_flag_set(inode
, FI_DIRTY_INODE
)) {
1539 set_inode_flag(inode
, FI_DIRTY_INODE
);
1540 stat_inc_dirty_inode(sbi
, DIRTY_META
);
1542 if (sync
&& list_empty(&F2FS_I(inode
)->gdirty_list
)) {
1543 list_add_tail(&F2FS_I(inode
)->gdirty_list
,
1544 &sbi
->inode_list
[DIRTY_META
]);
1545 inc_page_count(sbi
, F2FS_DIRTY_IMETA
);
1547 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
1551 void f2fs_inode_synced(struct inode
*inode
)
1553 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
1555 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
1556 if (!is_inode_flag_set(inode
, FI_DIRTY_INODE
)) {
1557 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
1560 if (!list_empty(&F2FS_I(inode
)->gdirty_list
)) {
1561 list_del_init(&F2FS_I(inode
)->gdirty_list
);
1562 dec_page_count(sbi
, F2FS_DIRTY_IMETA
);
1564 clear_inode_flag(inode
, FI_DIRTY_INODE
);
1565 clear_inode_flag(inode
, FI_AUTO_RECOVER
);
1566 stat_dec_dirty_inode(F2FS_I_SB(inode
), DIRTY_META
);
1567 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
1571 * f2fs_dirty_inode() is called from __mark_inode_dirty()
1573 * We should call set_dirty_inode to write the dirty inode through write_inode.
1575 static void f2fs_dirty_inode(struct inode
*inode
, int flags
)
1577 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
1579 if (inode
->i_ino
== F2FS_NODE_INO(sbi
) ||
1580 inode
->i_ino
== F2FS_META_INO(sbi
))
1583 if (is_inode_flag_set(inode
, FI_AUTO_RECOVER
))
1584 clear_inode_flag(inode
, FI_AUTO_RECOVER
);
1586 f2fs_inode_dirtied(inode
, false);
1589 static void f2fs_free_inode(struct inode
*inode
)
1591 fscrypt_free_inode(inode
);
1592 kmem_cache_free(f2fs_inode_cachep
, F2FS_I(inode
));
1595 static void destroy_percpu_info(struct f2fs_sb_info
*sbi
)
1597 percpu_counter_destroy(&sbi
->total_valid_inode_count
);
1598 percpu_counter_destroy(&sbi
->rf_node_block_count
);
1599 percpu_counter_destroy(&sbi
->alloc_valid_block_count
);
1602 static void destroy_device_list(struct f2fs_sb_info
*sbi
)
1606 for (i
= 0; i
< sbi
->s_ndevs
; i
++) {
1608 fput(FDEV(i
).bdev_file
);
1609 #ifdef CONFIG_BLK_DEV_ZONED
1610 kvfree(FDEV(i
).blkz_seq
);
1616 static void f2fs_put_super(struct super_block
*sb
)
1618 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
1623 /* unregister procfs/sysfs entries in advance to avoid race case */
1624 f2fs_unregister_sysfs(sbi
);
1626 f2fs_quota_off_umount(sb
);
1628 /* prevent remaining shrinker jobs */
1629 mutex_lock(&sbi
->umount_mutex
);
1632 * flush all issued checkpoints and stop checkpoint issue thread.
1633 * after then, all checkpoints should be done by each process context.
1635 f2fs_stop_ckpt_thread(sbi
);
1638 * We don't need to do checkpoint when superblock is clean.
1639 * But, the previous checkpoint was not done by umount, it needs to do
1640 * clean checkpoint again.
1642 if ((is_sbi_flag_set(sbi
, SBI_IS_DIRTY
) ||
1643 !is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
))) {
1644 struct cp_control cpc
= {
1645 .reason
= CP_UMOUNT
,
1647 stat_inc_cp_call_count(sbi
, TOTAL_CALL
);
1648 err
= f2fs_write_checkpoint(sbi
, &cpc
);
1651 /* be sure to wait for any on-going discard commands */
1652 done
= f2fs_issue_discard_timeout(sbi
);
1653 if (f2fs_realtime_discard_enable(sbi
) && !sbi
->discard_blks
&& done
) {
1654 struct cp_control cpc
= {
1655 .reason
= CP_UMOUNT
| CP_TRIMMED
,
1657 stat_inc_cp_call_count(sbi
, TOTAL_CALL
);
1658 err
= f2fs_write_checkpoint(sbi
, &cpc
);
1662 * normally superblock is clean, so we need to release this.
1663 * In addition, EIO will skip do checkpoint, we need this as well.
1665 f2fs_release_ino_entry(sbi
, true);
1667 f2fs_leave_shrinker(sbi
);
1668 mutex_unlock(&sbi
->umount_mutex
);
1670 /* our cp_error case, we can wait for any writeback page */
1671 f2fs_flush_merged_writes(sbi
);
1673 f2fs_wait_on_all_pages(sbi
, F2FS_WB_CP_DATA
);
1675 if (err
|| f2fs_cp_error(sbi
)) {
1676 truncate_inode_pages_final(NODE_MAPPING(sbi
));
1677 truncate_inode_pages_final(META_MAPPING(sbi
));
1680 for (i
= 0; i
< NR_COUNT_TYPE
; i
++) {
1681 if (!get_pages(sbi
, i
))
1683 f2fs_err(sbi
, "detect filesystem reference count leak during "
1684 "umount, type: %d, count: %lld", i
, get_pages(sbi
, i
));
1685 f2fs_bug_on(sbi
, 1);
1688 f2fs_bug_on(sbi
, sbi
->fsync_node_num
);
1690 f2fs_destroy_compress_inode(sbi
);
1692 iput(sbi
->node_inode
);
1693 sbi
->node_inode
= NULL
;
1695 iput(sbi
->meta_inode
);
1696 sbi
->meta_inode
= NULL
;
1699 * iput() can update stat information, if f2fs_write_checkpoint()
1700 * above failed with error.
1702 f2fs_destroy_stats(sbi
);
1704 /* destroy f2fs internal modules */
1705 f2fs_destroy_node_manager(sbi
);
1706 f2fs_destroy_segment_manager(sbi
);
1708 /* flush s_error_work before sbi destroy */
1709 flush_work(&sbi
->s_error_work
);
1711 f2fs_destroy_post_read_wq(sbi
);
1715 if (sbi
->s_chksum_driver
)
1716 crypto_free_shash(sbi
->s_chksum_driver
);
1717 kfree(sbi
->raw_super
);
1719 f2fs_destroy_page_array_cache(sbi
);
1720 f2fs_destroy_xattr_caches(sbi
);
1721 mempool_destroy(sbi
->write_io_dummy
);
1723 for (i
= 0; i
< MAXQUOTAS
; i
++)
1724 kfree(F2FS_OPTION(sbi
).s_qf_names
[i
]);
1726 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi
).dummy_enc_policy
);
1727 destroy_percpu_info(sbi
);
1728 f2fs_destroy_iostat(sbi
);
1729 for (i
= 0; i
< NR_PAGE_TYPE
; i
++)
1730 kvfree(sbi
->write_io
[i
]);
1731 #if IS_ENABLED(CONFIG_UNICODE)
1732 utf8_unload(sb
->s_encoding
);
1736 int f2fs_sync_fs(struct super_block
*sb
, int sync
)
1738 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
1741 if (unlikely(f2fs_cp_error(sbi
)))
1743 if (unlikely(is_sbi_flag_set(sbi
, SBI_CP_DISABLED
)))
1746 trace_f2fs_sync_fs(sb
, sync
);
1748 if (unlikely(is_sbi_flag_set(sbi
, SBI_POR_DOING
)))
1752 stat_inc_cp_call_count(sbi
, TOTAL_CALL
);
1753 err
= f2fs_issue_checkpoint(sbi
);
1759 static int f2fs_freeze(struct super_block
*sb
)
1761 if (f2fs_readonly(sb
))
1764 /* IO error happened before */
1765 if (unlikely(f2fs_cp_error(F2FS_SB(sb
))))
1768 /* must be clean, since sync_filesystem() was already called */
1769 if (is_sbi_flag_set(F2FS_SB(sb
), SBI_IS_DIRTY
))
1772 /* Let's flush checkpoints and stop the thread. */
1773 f2fs_flush_ckpt_thread(F2FS_SB(sb
));
1775 /* to avoid deadlock on f2fs_evict_inode->SB_FREEZE_FS */
1776 set_sbi_flag(F2FS_SB(sb
), SBI_IS_FREEZING
);
1780 static int f2fs_unfreeze(struct super_block
*sb
)
1782 clear_sbi_flag(F2FS_SB(sb
), SBI_IS_FREEZING
);
1787 static int f2fs_statfs_project(struct super_block
*sb
,
1788 kprojid_t projid
, struct kstatfs
*buf
)
1791 struct dquot
*dquot
;
1795 qid
= make_kqid_projid(projid
);
1796 dquot
= dqget(sb
, qid
);
1798 return PTR_ERR(dquot
);
1799 spin_lock(&dquot
->dq_dqb_lock
);
1801 limit
= min_not_zero(dquot
->dq_dqb
.dqb_bsoftlimit
,
1802 dquot
->dq_dqb
.dqb_bhardlimit
);
1804 limit
>>= sb
->s_blocksize_bits
;
1806 if (limit
&& buf
->f_blocks
> limit
) {
1807 curblock
= (dquot
->dq_dqb
.dqb_curspace
+
1808 dquot
->dq_dqb
.dqb_rsvspace
) >> sb
->s_blocksize_bits
;
1809 buf
->f_blocks
= limit
;
1810 buf
->f_bfree
= buf
->f_bavail
=
1811 (buf
->f_blocks
> curblock
) ?
1812 (buf
->f_blocks
- curblock
) : 0;
1815 limit
= min_not_zero(dquot
->dq_dqb
.dqb_isoftlimit
,
1816 dquot
->dq_dqb
.dqb_ihardlimit
);
1818 if (limit
&& buf
->f_files
> limit
) {
1819 buf
->f_files
= limit
;
1821 (buf
->f_files
> dquot
->dq_dqb
.dqb_curinodes
) ?
1822 (buf
->f_files
- dquot
->dq_dqb
.dqb_curinodes
) : 0;
1825 spin_unlock(&dquot
->dq_dqb_lock
);
1831 static int f2fs_statfs(struct dentry
*dentry
, struct kstatfs
*buf
)
1833 struct super_block
*sb
= dentry
->d_sb
;
1834 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
1835 u64 id
= huge_encode_dev(sb
->s_bdev
->bd_dev
);
1836 block_t total_count
, user_block_count
, start_count
;
1837 u64 avail_node_count
;
1838 unsigned int total_valid_node_count
;
1840 total_count
= le64_to_cpu(sbi
->raw_super
->block_count
);
1841 start_count
= le32_to_cpu(sbi
->raw_super
->segment0_blkaddr
);
1842 buf
->f_type
= F2FS_SUPER_MAGIC
;
1843 buf
->f_bsize
= sbi
->blocksize
;
1845 buf
->f_blocks
= total_count
- start_count
;
1847 spin_lock(&sbi
->stat_lock
);
1849 user_block_count
= sbi
->user_block_count
;
1850 total_valid_node_count
= valid_node_count(sbi
);
1851 avail_node_count
= sbi
->total_node_count
- F2FS_RESERVED_NODE_NUM
;
1852 buf
->f_bfree
= user_block_count
- valid_user_blocks(sbi
) -
1853 sbi
->current_reserved_blocks
;
1855 if (unlikely(buf
->f_bfree
<= sbi
->unusable_block_count
))
1858 buf
->f_bfree
-= sbi
->unusable_block_count
;
1859 spin_unlock(&sbi
->stat_lock
);
1861 if (buf
->f_bfree
> F2FS_OPTION(sbi
).root_reserved_blocks
)
1862 buf
->f_bavail
= buf
->f_bfree
-
1863 F2FS_OPTION(sbi
).root_reserved_blocks
;
1867 if (avail_node_count
> user_block_count
) {
1868 buf
->f_files
= user_block_count
;
1869 buf
->f_ffree
= buf
->f_bavail
;
1871 buf
->f_files
= avail_node_count
;
1872 buf
->f_ffree
= min(avail_node_count
- total_valid_node_count
,
1876 buf
->f_namelen
= F2FS_NAME_LEN
;
1877 buf
->f_fsid
= u64_to_fsid(id
);
1880 if (is_inode_flag_set(dentry
->d_inode
, FI_PROJ_INHERIT
) &&
1881 sb_has_quota_limits_enabled(sb
, PRJQUOTA
)) {
1882 f2fs_statfs_project(sb
, F2FS_I(dentry
->d_inode
)->i_projid
, buf
);
1888 static inline void f2fs_show_quota_options(struct seq_file
*seq
,
1889 struct super_block
*sb
)
1892 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
1894 if (F2FS_OPTION(sbi
).s_jquota_fmt
) {
1897 switch (F2FS_OPTION(sbi
).s_jquota_fmt
) {
1908 seq_printf(seq
, ",jqfmt=%s", fmtname
);
1911 if (F2FS_OPTION(sbi
).s_qf_names
[USRQUOTA
])
1912 seq_show_option(seq
, "usrjquota",
1913 F2FS_OPTION(sbi
).s_qf_names
[USRQUOTA
]);
1915 if (F2FS_OPTION(sbi
).s_qf_names
[GRPQUOTA
])
1916 seq_show_option(seq
, "grpjquota",
1917 F2FS_OPTION(sbi
).s_qf_names
[GRPQUOTA
]);
1919 if (F2FS_OPTION(sbi
).s_qf_names
[PRJQUOTA
])
1920 seq_show_option(seq
, "prjjquota",
1921 F2FS_OPTION(sbi
).s_qf_names
[PRJQUOTA
]);
1925 #ifdef CONFIG_F2FS_FS_COMPRESSION
1926 static inline void f2fs_show_compress_options(struct seq_file
*seq
,
1927 struct super_block
*sb
)
1929 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
1933 if (!f2fs_sb_has_compression(sbi
))
1936 switch (F2FS_OPTION(sbi
).compress_algorithm
) {
1946 case COMPRESS_LZORLE
:
1947 algtype
= "lzo-rle";
1950 seq_printf(seq
, ",compress_algorithm=%s", algtype
);
1952 if (F2FS_OPTION(sbi
).compress_level
)
1953 seq_printf(seq
, ":%d", F2FS_OPTION(sbi
).compress_level
);
1955 seq_printf(seq
, ",compress_log_size=%u",
1956 F2FS_OPTION(sbi
).compress_log_size
);
1958 for (i
= 0; i
< F2FS_OPTION(sbi
).compress_ext_cnt
; i
++) {
1959 seq_printf(seq
, ",compress_extension=%s",
1960 F2FS_OPTION(sbi
).extensions
[i
]);
1963 for (i
= 0; i
< F2FS_OPTION(sbi
).nocompress_ext_cnt
; i
++) {
1964 seq_printf(seq
, ",nocompress_extension=%s",
1965 F2FS_OPTION(sbi
).noextensions
[i
]);
1968 if (F2FS_OPTION(sbi
).compress_chksum
)
1969 seq_puts(seq
, ",compress_chksum");
1971 if (F2FS_OPTION(sbi
).compress_mode
== COMPR_MODE_FS
)
1972 seq_printf(seq
, ",compress_mode=%s", "fs");
1973 else if (F2FS_OPTION(sbi
).compress_mode
== COMPR_MODE_USER
)
1974 seq_printf(seq
, ",compress_mode=%s", "user");
1976 if (test_opt(sbi
, COMPRESS_CACHE
))
1977 seq_puts(seq
, ",compress_cache");
1981 static int f2fs_show_options(struct seq_file
*seq
, struct dentry
*root
)
1983 struct f2fs_sb_info
*sbi
= F2FS_SB(root
->d_sb
);
1985 if (F2FS_OPTION(sbi
).bggc_mode
== BGGC_MODE_SYNC
)
1986 seq_printf(seq
, ",background_gc=%s", "sync");
1987 else if (F2FS_OPTION(sbi
).bggc_mode
== BGGC_MODE_ON
)
1988 seq_printf(seq
, ",background_gc=%s", "on");
1989 else if (F2FS_OPTION(sbi
).bggc_mode
== BGGC_MODE_OFF
)
1990 seq_printf(seq
, ",background_gc=%s", "off");
1992 if (test_opt(sbi
, GC_MERGE
))
1993 seq_puts(seq
, ",gc_merge");
1995 seq_puts(seq
, ",nogc_merge");
1997 if (test_opt(sbi
, DISABLE_ROLL_FORWARD
))
1998 seq_puts(seq
, ",disable_roll_forward");
1999 if (test_opt(sbi
, NORECOVERY
))
2000 seq_puts(seq
, ",norecovery");
2001 if (test_opt(sbi
, DISCARD
)) {
2002 seq_puts(seq
, ",discard");
2003 if (F2FS_OPTION(sbi
).discard_unit
== DISCARD_UNIT_BLOCK
)
2004 seq_printf(seq
, ",discard_unit=%s", "block");
2005 else if (F2FS_OPTION(sbi
).discard_unit
== DISCARD_UNIT_SEGMENT
)
2006 seq_printf(seq
, ",discard_unit=%s", "segment");
2007 else if (F2FS_OPTION(sbi
).discard_unit
== DISCARD_UNIT_SECTION
)
2008 seq_printf(seq
, ",discard_unit=%s", "section");
2010 seq_puts(seq
, ",nodiscard");
2012 if (test_opt(sbi
, NOHEAP
))
2013 seq_puts(seq
, ",no_heap");
2015 seq_puts(seq
, ",heap");
2016 #ifdef CONFIG_F2FS_FS_XATTR
2017 if (test_opt(sbi
, XATTR_USER
))
2018 seq_puts(seq
, ",user_xattr");
2020 seq_puts(seq
, ",nouser_xattr");
2021 if (test_opt(sbi
, INLINE_XATTR
))
2022 seq_puts(seq
, ",inline_xattr");
2024 seq_puts(seq
, ",noinline_xattr");
2025 if (test_opt(sbi
, INLINE_XATTR_SIZE
))
2026 seq_printf(seq
, ",inline_xattr_size=%u",
2027 F2FS_OPTION(sbi
).inline_xattr_size
);
2029 #ifdef CONFIG_F2FS_FS_POSIX_ACL
2030 if (test_opt(sbi
, POSIX_ACL
))
2031 seq_puts(seq
, ",acl");
2033 seq_puts(seq
, ",noacl");
2035 if (test_opt(sbi
, DISABLE_EXT_IDENTIFY
))
2036 seq_puts(seq
, ",disable_ext_identify");
2037 if (test_opt(sbi
, INLINE_DATA
))
2038 seq_puts(seq
, ",inline_data");
2040 seq_puts(seq
, ",noinline_data");
2041 if (test_opt(sbi
, INLINE_DENTRY
))
2042 seq_puts(seq
, ",inline_dentry");
2044 seq_puts(seq
, ",noinline_dentry");
2045 if (test_opt(sbi
, FLUSH_MERGE
))
2046 seq_puts(seq
, ",flush_merge");
2048 seq_puts(seq
, ",noflush_merge");
2049 if (test_opt(sbi
, NOBARRIER
))
2050 seq_puts(seq
, ",nobarrier");
2052 seq_puts(seq
, ",barrier");
2053 if (test_opt(sbi
, FASTBOOT
))
2054 seq_puts(seq
, ",fastboot");
2055 if (test_opt(sbi
, READ_EXTENT_CACHE
))
2056 seq_puts(seq
, ",extent_cache");
2058 seq_puts(seq
, ",noextent_cache");
2059 if (test_opt(sbi
, AGE_EXTENT_CACHE
))
2060 seq_puts(seq
, ",age_extent_cache");
2061 if (test_opt(sbi
, DATA_FLUSH
))
2062 seq_puts(seq
, ",data_flush");
2064 seq_puts(seq
, ",mode=");
2065 if (F2FS_OPTION(sbi
).fs_mode
== FS_MODE_ADAPTIVE
)
2066 seq_puts(seq
, "adaptive");
2067 else if (F2FS_OPTION(sbi
).fs_mode
== FS_MODE_LFS
)
2068 seq_puts(seq
, "lfs");
2069 else if (F2FS_OPTION(sbi
).fs_mode
== FS_MODE_FRAGMENT_SEG
)
2070 seq_puts(seq
, "fragment:segment");
2071 else if (F2FS_OPTION(sbi
).fs_mode
== FS_MODE_FRAGMENT_BLK
)
2072 seq_puts(seq
, "fragment:block");
2073 seq_printf(seq
, ",active_logs=%u", F2FS_OPTION(sbi
).active_logs
);
2074 if (test_opt(sbi
, RESERVE_ROOT
))
2075 seq_printf(seq
, ",reserve_root=%u,resuid=%u,resgid=%u",
2076 F2FS_OPTION(sbi
).root_reserved_blocks
,
2077 from_kuid_munged(&init_user_ns
,
2078 F2FS_OPTION(sbi
).s_resuid
),
2079 from_kgid_munged(&init_user_ns
,
2080 F2FS_OPTION(sbi
).s_resgid
));
2081 if (F2FS_IO_SIZE_BITS(sbi
))
2082 seq_printf(seq
, ",io_bits=%u",
2083 F2FS_OPTION(sbi
).write_io_size_bits
);
2084 #ifdef CONFIG_F2FS_FAULT_INJECTION
2085 if (test_opt(sbi
, FAULT_INJECTION
)) {
2086 seq_printf(seq
, ",fault_injection=%u",
2087 F2FS_OPTION(sbi
).fault_info
.inject_rate
);
2088 seq_printf(seq
, ",fault_type=%u",
2089 F2FS_OPTION(sbi
).fault_info
.inject_type
);
2093 if (test_opt(sbi
, QUOTA
))
2094 seq_puts(seq
, ",quota");
2095 if (test_opt(sbi
, USRQUOTA
))
2096 seq_puts(seq
, ",usrquota");
2097 if (test_opt(sbi
, GRPQUOTA
))
2098 seq_puts(seq
, ",grpquota");
2099 if (test_opt(sbi
, PRJQUOTA
))
2100 seq_puts(seq
, ",prjquota");
2102 f2fs_show_quota_options(seq
, sbi
->sb
);
2104 fscrypt_show_test_dummy_encryption(seq
, ',', sbi
->sb
);
2106 if (sbi
->sb
->s_flags
& SB_INLINECRYPT
)
2107 seq_puts(seq
, ",inlinecrypt");
2109 if (F2FS_OPTION(sbi
).alloc_mode
== ALLOC_MODE_DEFAULT
)
2110 seq_printf(seq
, ",alloc_mode=%s", "default");
2111 else if (F2FS_OPTION(sbi
).alloc_mode
== ALLOC_MODE_REUSE
)
2112 seq_printf(seq
, ",alloc_mode=%s", "reuse");
2114 if (test_opt(sbi
, DISABLE_CHECKPOINT
))
2115 seq_printf(seq
, ",checkpoint=disable:%u",
2116 F2FS_OPTION(sbi
).unusable_cap
);
2117 if (test_opt(sbi
, MERGE_CHECKPOINT
))
2118 seq_puts(seq
, ",checkpoint_merge");
2120 seq_puts(seq
, ",nocheckpoint_merge");
2121 if (F2FS_OPTION(sbi
).fsync_mode
== FSYNC_MODE_POSIX
)
2122 seq_printf(seq
, ",fsync_mode=%s", "posix");
2123 else if (F2FS_OPTION(sbi
).fsync_mode
== FSYNC_MODE_STRICT
)
2124 seq_printf(seq
, ",fsync_mode=%s", "strict");
2125 else if (F2FS_OPTION(sbi
).fsync_mode
== FSYNC_MODE_NOBARRIER
)
2126 seq_printf(seq
, ",fsync_mode=%s", "nobarrier");
2128 #ifdef CONFIG_F2FS_FS_COMPRESSION
2129 f2fs_show_compress_options(seq
, sbi
->sb
);
2132 if (test_opt(sbi
, ATGC
))
2133 seq_puts(seq
, ",atgc");
2135 if (F2FS_OPTION(sbi
).memory_mode
== MEMORY_MODE_NORMAL
)
2136 seq_printf(seq
, ",memory=%s", "normal");
2137 else if (F2FS_OPTION(sbi
).memory_mode
== MEMORY_MODE_LOW
)
2138 seq_printf(seq
, ",memory=%s", "low");
2140 if (F2FS_OPTION(sbi
).errors
== MOUNT_ERRORS_READONLY
)
2141 seq_printf(seq
, ",errors=%s", "remount-ro");
2142 else if (F2FS_OPTION(sbi
).errors
== MOUNT_ERRORS_CONTINUE
)
2143 seq_printf(seq
, ",errors=%s", "continue");
2144 else if (F2FS_OPTION(sbi
).errors
== MOUNT_ERRORS_PANIC
)
2145 seq_printf(seq
, ",errors=%s", "panic");
2150 static void default_options(struct f2fs_sb_info
*sbi
, bool remount
)
2152 /* init some FS parameters */
2154 set_opt(sbi
, READ_EXTENT_CACHE
);
2155 clear_opt(sbi
, DISABLE_CHECKPOINT
);
2157 if (f2fs_hw_support_discard(sbi
) || f2fs_hw_should_discard(sbi
))
2158 set_opt(sbi
, DISCARD
);
2160 if (f2fs_sb_has_blkzoned(sbi
))
2161 F2FS_OPTION(sbi
).discard_unit
= DISCARD_UNIT_SECTION
;
2163 F2FS_OPTION(sbi
).discard_unit
= DISCARD_UNIT_BLOCK
;
2166 if (f2fs_sb_has_readonly(sbi
))
2167 F2FS_OPTION(sbi
).active_logs
= NR_CURSEG_RO_TYPE
;
2169 F2FS_OPTION(sbi
).active_logs
= NR_CURSEG_PERSIST_TYPE
;
2171 F2FS_OPTION(sbi
).inline_xattr_size
= DEFAULT_INLINE_XATTR_ADDRS
;
2172 if (le32_to_cpu(F2FS_RAW_SUPER(sbi
)->segment_count_main
) <=
2173 SMALL_VOLUME_SEGMENTS
)
2174 F2FS_OPTION(sbi
).alloc_mode
= ALLOC_MODE_REUSE
;
2176 F2FS_OPTION(sbi
).alloc_mode
= ALLOC_MODE_DEFAULT
;
2177 F2FS_OPTION(sbi
).fsync_mode
= FSYNC_MODE_POSIX
;
2178 F2FS_OPTION(sbi
).s_resuid
= make_kuid(&init_user_ns
, F2FS_DEF_RESUID
);
2179 F2FS_OPTION(sbi
).s_resgid
= make_kgid(&init_user_ns
, F2FS_DEF_RESGID
);
2180 if (f2fs_sb_has_compression(sbi
)) {
2181 F2FS_OPTION(sbi
).compress_algorithm
= COMPRESS_LZ4
;
2182 F2FS_OPTION(sbi
).compress_log_size
= MIN_COMPRESS_LOG_SIZE
;
2183 F2FS_OPTION(sbi
).compress_ext_cnt
= 0;
2184 F2FS_OPTION(sbi
).compress_mode
= COMPR_MODE_FS
;
2186 F2FS_OPTION(sbi
).bggc_mode
= BGGC_MODE_ON
;
2187 F2FS_OPTION(sbi
).memory_mode
= MEMORY_MODE_NORMAL
;
2188 F2FS_OPTION(sbi
).errors
= MOUNT_ERRORS_CONTINUE
;
2190 sbi
->sb
->s_flags
&= ~SB_INLINECRYPT
;
2192 set_opt(sbi
, INLINE_XATTR
);
2193 set_opt(sbi
, INLINE_DATA
);
2194 set_opt(sbi
, INLINE_DENTRY
);
2195 set_opt(sbi
, NOHEAP
);
2196 set_opt(sbi
, MERGE_CHECKPOINT
);
2197 F2FS_OPTION(sbi
).unusable_cap
= 0;
2198 sbi
->sb
->s_flags
|= SB_LAZYTIME
;
2199 if (!f2fs_is_readonly(sbi
))
2200 set_opt(sbi
, FLUSH_MERGE
);
2201 if (f2fs_sb_has_blkzoned(sbi
))
2202 F2FS_OPTION(sbi
).fs_mode
= FS_MODE_LFS
;
2204 F2FS_OPTION(sbi
).fs_mode
= FS_MODE_ADAPTIVE
;
2206 #ifdef CONFIG_F2FS_FS_XATTR
2207 set_opt(sbi
, XATTR_USER
);
2209 #ifdef CONFIG_F2FS_FS_POSIX_ACL
2210 set_opt(sbi
, POSIX_ACL
);
2213 f2fs_build_fault_attr(sbi
, 0, 0);
2217 static int f2fs_enable_quotas(struct super_block
*sb
);
2220 static int f2fs_disable_checkpoint(struct f2fs_sb_info
*sbi
)
2222 unsigned int s_flags
= sbi
->sb
->s_flags
;
2223 struct cp_control cpc
;
2224 unsigned int gc_mode
= sbi
->gc_mode
;
2229 if (s_flags
& SB_RDONLY
) {
2230 f2fs_err(sbi
, "checkpoint=disable on readonly fs");
2233 sbi
->sb
->s_flags
|= SB_ACTIVE
;
2235 /* check if we need more GC first */
2236 unusable
= f2fs_get_unusable_blocks(sbi
);
2237 if (!f2fs_disable_cp_again(sbi
, unusable
))
2240 f2fs_update_time(sbi
, DISABLE_TIME
);
2242 sbi
->gc_mode
= GC_URGENT_HIGH
;
2244 while (!f2fs_time_over(sbi
, DISABLE_TIME
)) {
2245 struct f2fs_gc_control gc_control
= {
2246 .victim_segno
= NULL_SEGNO
,
2247 .init_gc_type
= FG_GC
,
2248 .should_migrate_blocks
= false,
2249 .err_gc_skipped
= true,
2250 .nr_free_secs
= 1 };
2252 f2fs_down_write(&sbi
->gc_lock
);
2253 stat_inc_gc_call_count(sbi
, FOREGROUND
);
2254 err
= f2fs_gc(sbi
, &gc_control
);
2255 if (err
== -ENODATA
) {
2259 if (err
&& err
!= -EAGAIN
)
2263 ret
= sync_filesystem(sbi
->sb
);
2265 err
= ret
? ret
: err
;
2269 unusable
= f2fs_get_unusable_blocks(sbi
);
2270 if (f2fs_disable_cp_again(sbi
, unusable
)) {
2276 f2fs_down_write(&sbi
->gc_lock
);
2277 cpc
.reason
= CP_PAUSE
;
2278 set_sbi_flag(sbi
, SBI_CP_DISABLED
);
2279 stat_inc_cp_call_count(sbi
, TOTAL_CALL
);
2280 err
= f2fs_write_checkpoint(sbi
, &cpc
);
2284 spin_lock(&sbi
->stat_lock
);
2285 sbi
->unusable_block_count
= unusable
;
2286 spin_unlock(&sbi
->stat_lock
);
2289 f2fs_up_write(&sbi
->gc_lock
);
2291 sbi
->gc_mode
= gc_mode
;
2292 sbi
->sb
->s_flags
= s_flags
; /* Restore SB_RDONLY status */
2296 static void f2fs_enable_checkpoint(struct f2fs_sb_info
*sbi
)
2298 int retry
= DEFAULT_RETRY_IO_COUNT
;
2300 /* we should flush all the data to keep data consistency */
2302 sync_inodes_sb(sbi
->sb
);
2303 f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT
);
2304 } while (get_pages(sbi
, F2FS_DIRTY_DATA
) && retry
--);
2306 if (unlikely(retry
< 0))
2307 f2fs_warn(sbi
, "checkpoint=enable has some unwritten data.");
2309 f2fs_down_write(&sbi
->gc_lock
);
2310 f2fs_dirty_to_prefree(sbi
);
2312 clear_sbi_flag(sbi
, SBI_CP_DISABLED
);
2313 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
2314 f2fs_up_write(&sbi
->gc_lock
);
2316 f2fs_sync_fs(sbi
->sb
, 1);
2318 /* Let's ensure there's no pending checkpoint anymore */
2319 f2fs_flush_ckpt_thread(sbi
);
2322 static int f2fs_remount(struct super_block
*sb
, int *flags
, char *data
)
2324 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
2325 struct f2fs_mount_info org_mount_opt
;
2326 unsigned long old_sb_flags
;
2328 bool need_restart_gc
= false, need_stop_gc
= false;
2329 bool need_restart_flush
= false, need_stop_flush
= false;
2330 bool need_restart_discard
= false, need_stop_discard
= false;
2331 bool need_enable_checkpoint
= false, need_disable_checkpoint
= false;
2332 bool no_read_extent_cache
= !test_opt(sbi
, READ_EXTENT_CACHE
);
2333 bool no_age_extent_cache
= !test_opt(sbi
, AGE_EXTENT_CACHE
);
2334 bool enable_checkpoint
= !test_opt(sbi
, DISABLE_CHECKPOINT
);
2335 bool no_io_align
= !F2FS_IO_ALIGNED(sbi
);
2336 bool no_atgc
= !test_opt(sbi
, ATGC
);
2337 bool no_discard
= !test_opt(sbi
, DISCARD
);
2338 bool no_compress_cache
= !test_opt(sbi
, COMPRESS_CACHE
);
2339 bool block_unit_discard
= f2fs_block_unit_discard(sbi
);
2345 * Save the old mount options in case we
2346 * need to restore them.
2348 org_mount_opt
= sbi
->mount_opt
;
2349 old_sb_flags
= sb
->s_flags
;
2352 org_mount_opt
.s_jquota_fmt
= F2FS_OPTION(sbi
).s_jquota_fmt
;
2353 for (i
= 0; i
< MAXQUOTAS
; i
++) {
2354 if (F2FS_OPTION(sbi
).s_qf_names
[i
]) {
2355 org_mount_opt
.s_qf_names
[i
] =
2356 kstrdup(F2FS_OPTION(sbi
).s_qf_names
[i
],
2358 if (!org_mount_opt
.s_qf_names
[i
]) {
2359 for (j
= 0; j
< i
; j
++)
2360 kfree(org_mount_opt
.s_qf_names
[j
]);
2364 org_mount_opt
.s_qf_names
[i
] = NULL
;
2369 /* recover superblocks we couldn't write due to previous RO mount */
2370 if (!(*flags
& SB_RDONLY
) && is_sbi_flag_set(sbi
, SBI_NEED_SB_WRITE
)) {
2371 err
= f2fs_commit_super(sbi
, false);
2372 f2fs_info(sbi
, "Try to recover all the superblocks, ret: %d",
2375 clear_sbi_flag(sbi
, SBI_NEED_SB_WRITE
);
2378 default_options(sbi
, true);
2380 /* parse mount options */
2381 err
= parse_options(sb
, data
, true);
2385 /* flush outstanding errors before changing fs state */
2386 flush_work(&sbi
->s_error_work
);
2389 * Previous and new state of filesystem is RO,
2390 * so skip checking GC and FLUSH_MERGE conditions.
2392 if (f2fs_readonly(sb
) && (*flags
& SB_RDONLY
))
2395 if (f2fs_dev_is_readonly(sbi
) && !(*flags
& SB_RDONLY
)) {
2401 if (!f2fs_readonly(sb
) && (*flags
& SB_RDONLY
)) {
2402 err
= dquot_suspend(sb
, -1);
2405 } else if (f2fs_readonly(sb
) && !(*flags
& SB_RDONLY
)) {
2406 /* dquot_resume needs RW */
2407 sb
->s_flags
&= ~SB_RDONLY
;
2408 if (sb_any_quota_suspended(sb
)) {
2409 dquot_resume(sb
, -1);
2410 } else if (f2fs_sb_has_quota_ino(sbi
)) {
2411 err
= f2fs_enable_quotas(sb
);
2417 if (f2fs_lfs_mode(sbi
) && !IS_F2FS_IPU_DISABLE(sbi
)) {
2419 f2fs_warn(sbi
, "LFS is not compatible with IPU");
2423 /* disallow enable atgc dynamically */
2424 if (no_atgc
== !!test_opt(sbi
, ATGC
)) {
2426 f2fs_warn(sbi
, "switch atgc option is not allowed");
2430 /* disallow enable/disable extent_cache dynamically */
2431 if (no_read_extent_cache
== !!test_opt(sbi
, READ_EXTENT_CACHE
)) {
2433 f2fs_warn(sbi
, "switch extent_cache option is not allowed");
2436 /* disallow enable/disable age extent_cache dynamically */
2437 if (no_age_extent_cache
== !!test_opt(sbi
, AGE_EXTENT_CACHE
)) {
2439 f2fs_warn(sbi
, "switch age_extent_cache option is not allowed");
2443 if (no_io_align
== !!F2FS_IO_ALIGNED(sbi
)) {
2445 f2fs_warn(sbi
, "switch io_bits option is not allowed");
2449 if (no_compress_cache
== !!test_opt(sbi
, COMPRESS_CACHE
)) {
2451 f2fs_warn(sbi
, "switch compress_cache option is not allowed");
2455 if (block_unit_discard
!= f2fs_block_unit_discard(sbi
)) {
2457 f2fs_warn(sbi
, "switch discard_unit option is not allowed");
2461 if ((*flags
& SB_RDONLY
) && test_opt(sbi
, DISABLE_CHECKPOINT
)) {
2463 f2fs_warn(sbi
, "disabling checkpoint not compatible with read-only");
2468 * We stop the GC thread if FS is mounted as RO
2469 * or if background_gc = off is passed in mount
2470 * option. Also sync the filesystem.
2472 if ((*flags
& SB_RDONLY
) ||
2473 (F2FS_OPTION(sbi
).bggc_mode
== BGGC_MODE_OFF
&&
2474 !test_opt(sbi
, GC_MERGE
))) {
2475 if (sbi
->gc_thread
) {
2476 f2fs_stop_gc_thread(sbi
);
2477 need_restart_gc
= true;
2479 } else if (!sbi
->gc_thread
) {
2480 err
= f2fs_start_gc_thread(sbi
);
2483 need_stop_gc
= true;
2486 if (*flags
& SB_RDONLY
) {
2489 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
2490 set_sbi_flag(sbi
, SBI_IS_CLOSE
);
2491 f2fs_sync_fs(sb
, 1);
2492 clear_sbi_flag(sbi
, SBI_IS_CLOSE
);
2496 * We stop issue flush thread if FS is mounted as RO
2497 * or if flush_merge is not passed in mount option.
2499 if ((*flags
& SB_RDONLY
) || !test_opt(sbi
, FLUSH_MERGE
)) {
2500 clear_opt(sbi
, FLUSH_MERGE
);
2501 f2fs_destroy_flush_cmd_control(sbi
, false);
2502 need_restart_flush
= true;
2504 err
= f2fs_create_flush_cmd_control(sbi
);
2507 need_stop_flush
= true;
2510 if (no_discard
== !!test_opt(sbi
, DISCARD
)) {
2511 if (test_opt(sbi
, DISCARD
)) {
2512 err
= f2fs_start_discard_thread(sbi
);
2515 need_stop_discard
= true;
2517 f2fs_stop_discard_thread(sbi
);
2518 f2fs_issue_discard_timeout(sbi
);
2519 need_restart_discard
= true;
2523 if (enable_checkpoint
== !!test_opt(sbi
, DISABLE_CHECKPOINT
)) {
2524 if (test_opt(sbi
, DISABLE_CHECKPOINT
)) {
2525 err
= f2fs_disable_checkpoint(sbi
);
2527 goto restore_discard
;
2528 need_enable_checkpoint
= true;
2530 f2fs_enable_checkpoint(sbi
);
2531 need_disable_checkpoint
= true;
2536 * Place this routine at the end, since a new checkpoint would be
2537 * triggered while remount and we need to take care of it before
2538 * returning from remount.
2540 if ((*flags
& SB_RDONLY
) || test_opt(sbi
, DISABLE_CHECKPOINT
) ||
2541 !test_opt(sbi
, MERGE_CHECKPOINT
)) {
2542 f2fs_stop_ckpt_thread(sbi
);
2544 /* Flush if the prevous checkpoint, if exists. */
2545 f2fs_flush_ckpt_thread(sbi
);
2547 err
= f2fs_start_ckpt_thread(sbi
);
2550 "Failed to start F2FS issue_checkpoint_thread (%d)",
2552 goto restore_checkpoint
;
2558 /* Release old quota file names */
2559 for (i
= 0; i
< MAXQUOTAS
; i
++)
2560 kfree(org_mount_opt
.s_qf_names
[i
]);
2562 /* Update the POSIXACL Flag */
2563 sb
->s_flags
= (sb
->s_flags
& ~SB_POSIXACL
) |
2564 (test_opt(sbi
, POSIX_ACL
) ? SB_POSIXACL
: 0);
2566 limit_reserve_root(sbi
);
2567 adjust_unusable_cap_perc(sbi
);
2568 *flags
= (*flags
& ~SB_LAZYTIME
) | (sb
->s_flags
& SB_LAZYTIME
);
2571 if (need_enable_checkpoint
) {
2572 f2fs_enable_checkpoint(sbi
);
2573 } else if (need_disable_checkpoint
) {
2574 if (f2fs_disable_checkpoint(sbi
))
2575 f2fs_warn(sbi
, "checkpoint has not been disabled");
2578 if (need_restart_discard
) {
2579 if (f2fs_start_discard_thread(sbi
))
2580 f2fs_warn(sbi
, "discard has been stopped");
2581 } else if (need_stop_discard
) {
2582 f2fs_stop_discard_thread(sbi
);
2585 if (need_restart_flush
) {
2586 if (f2fs_create_flush_cmd_control(sbi
))
2587 f2fs_warn(sbi
, "background flush thread has stopped");
2588 } else if (need_stop_flush
) {
2589 clear_opt(sbi
, FLUSH_MERGE
);
2590 f2fs_destroy_flush_cmd_control(sbi
, false);
2593 if (need_restart_gc
) {
2594 if (f2fs_start_gc_thread(sbi
))
2595 f2fs_warn(sbi
, "background gc thread has stopped");
2596 } else if (need_stop_gc
) {
2597 f2fs_stop_gc_thread(sbi
);
2601 F2FS_OPTION(sbi
).s_jquota_fmt
= org_mount_opt
.s_jquota_fmt
;
2602 for (i
= 0; i
< MAXQUOTAS
; i
++) {
2603 kfree(F2FS_OPTION(sbi
).s_qf_names
[i
]);
2604 F2FS_OPTION(sbi
).s_qf_names
[i
] = org_mount_opt
.s_qf_names
[i
];
2607 sbi
->mount_opt
= org_mount_opt
;
2608 sb
->s_flags
= old_sb_flags
;
2613 static bool f2fs_need_recovery(struct f2fs_sb_info
*sbi
)
2615 /* need to recovery orphan */
2616 if (is_set_ckpt_flags(sbi
, CP_ORPHAN_PRESENT_FLAG
))
2618 /* need to recovery data */
2619 if (test_opt(sbi
, DISABLE_ROLL_FORWARD
))
2621 if (test_opt(sbi
, NORECOVERY
))
2623 return !is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
);
2626 static bool f2fs_recover_quota_begin(struct f2fs_sb_info
*sbi
)
2628 bool readonly
= f2fs_readonly(sbi
->sb
);
2630 if (!f2fs_need_recovery(sbi
))
2633 /* it doesn't need to check f2fs_sb_has_readonly() */
2634 if (f2fs_hw_is_readonly(sbi
))
2638 sbi
->sb
->s_flags
&= ~SB_RDONLY
;
2639 set_sbi_flag(sbi
, SBI_IS_WRITABLE
);
2643 * Turn on quotas which were not enabled for read-only mounts if
2644 * filesystem has quota feature, so that they are updated correctly.
2646 return f2fs_enable_quota_files(sbi
, readonly
);
2649 static void f2fs_recover_quota_end(struct f2fs_sb_info
*sbi
,
2653 f2fs_quota_off_umount(sbi
->sb
);
2655 if (is_sbi_flag_set(sbi
, SBI_IS_WRITABLE
)) {
2656 clear_sbi_flag(sbi
, SBI_IS_WRITABLE
);
2657 sbi
->sb
->s_flags
|= SB_RDONLY
;
2661 /* Read data from quotafile */
2662 static ssize_t
f2fs_quota_read(struct super_block
*sb
, int type
, char *data
,
2663 size_t len
, loff_t off
)
2665 struct inode
*inode
= sb_dqopt(sb
)->files
[type
];
2666 struct address_space
*mapping
= inode
->i_mapping
;
2667 block_t blkidx
= F2FS_BYTES_TO_BLK(off
);
2668 int offset
= off
& (sb
->s_blocksize
- 1);
2671 loff_t i_size
= i_size_read(inode
);
2677 if (off
+ len
> i_size
)
2680 while (toread
> 0) {
2681 tocopy
= min_t(unsigned long, sb
->s_blocksize
- offset
, toread
);
2683 page
= read_cache_page_gfp(mapping
, blkidx
, GFP_NOFS
);
2685 if (PTR_ERR(page
) == -ENOMEM
) {
2686 memalloc_retry_wait(GFP_NOFS
);
2689 set_sbi_flag(F2FS_SB(sb
), SBI_QUOTA_NEED_REPAIR
);
2690 return PTR_ERR(page
);
2695 if (unlikely(page
->mapping
!= mapping
)) {
2696 f2fs_put_page(page
, 1);
2699 if (unlikely(!PageUptodate(page
))) {
2700 f2fs_put_page(page
, 1);
2701 set_sbi_flag(F2FS_SB(sb
), SBI_QUOTA_NEED_REPAIR
);
2705 memcpy_from_page(data
, page
, offset
, tocopy
);
2706 f2fs_put_page(page
, 1);
2716 /* Write to quotafile */
2717 static ssize_t
f2fs_quota_write(struct super_block
*sb
, int type
,
2718 const char *data
, size_t len
, loff_t off
)
2720 struct inode
*inode
= sb_dqopt(sb
)->files
[type
];
2721 struct address_space
*mapping
= inode
->i_mapping
;
2722 const struct address_space_operations
*a_ops
= mapping
->a_ops
;
2723 int offset
= off
& (sb
->s_blocksize
- 1);
2724 size_t towrite
= len
;
2726 void *fsdata
= NULL
;
2730 while (towrite
> 0) {
2731 tocopy
= min_t(unsigned long, sb
->s_blocksize
- offset
,
2734 err
= a_ops
->write_begin(NULL
, mapping
, off
, tocopy
,
2736 if (unlikely(err
)) {
2737 if (err
== -ENOMEM
) {
2738 f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT
);
2741 set_sbi_flag(F2FS_SB(sb
), SBI_QUOTA_NEED_REPAIR
);
2745 memcpy_to_page(page
, offset
, data
, tocopy
);
2747 a_ops
->write_end(NULL
, mapping
, off
, tocopy
, tocopy
,
2758 inode_set_mtime_to_ts(inode
, inode_set_ctime_current(inode
));
2759 f2fs_mark_inode_dirty_sync(inode
, false);
2760 return len
- towrite
;
2763 int f2fs_dquot_initialize(struct inode
*inode
)
2765 if (time_to_inject(F2FS_I_SB(inode
), FAULT_DQUOT_INIT
))
2768 return dquot_initialize(inode
);
2771 static struct dquot
**f2fs_get_dquots(struct inode
*inode
)
2773 return F2FS_I(inode
)->i_dquot
;
2776 static qsize_t
*f2fs_get_reserved_space(struct inode
*inode
)
2778 return &F2FS_I(inode
)->i_reserved_quota
;
2781 static int f2fs_quota_on_mount(struct f2fs_sb_info
*sbi
, int type
)
2783 if (is_set_ckpt_flags(sbi
, CP_QUOTA_NEED_FSCK_FLAG
)) {
2784 f2fs_err(sbi
, "quota sysfile may be corrupted, skip loading it");
2788 return dquot_quota_on_mount(sbi
->sb
, F2FS_OPTION(sbi
).s_qf_names
[type
],
2789 F2FS_OPTION(sbi
).s_jquota_fmt
, type
);
2792 int f2fs_enable_quota_files(struct f2fs_sb_info
*sbi
, bool rdonly
)
2797 if (f2fs_sb_has_quota_ino(sbi
) && rdonly
) {
2798 err
= f2fs_enable_quotas(sbi
->sb
);
2800 f2fs_err(sbi
, "Cannot turn on quota_ino: %d", err
);
2806 for (i
= 0; i
< MAXQUOTAS
; i
++) {
2807 if (F2FS_OPTION(sbi
).s_qf_names
[i
]) {
2808 err
= f2fs_quota_on_mount(sbi
, i
);
2813 f2fs_err(sbi
, "Cannot turn on quotas: %d on %d",
2820 static int f2fs_quota_enable(struct super_block
*sb
, int type
, int format_id
,
2823 struct inode
*qf_inode
;
2824 unsigned long qf_inum
;
2825 unsigned long qf_flag
= F2FS_QUOTA_DEFAULT_FL
;
2828 BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb
)));
2830 qf_inum
= f2fs_qf_ino(sb
, type
);
2834 qf_inode
= f2fs_iget(sb
, qf_inum
);
2835 if (IS_ERR(qf_inode
)) {
2836 f2fs_err(F2FS_SB(sb
), "Bad quota inode %u:%lu", type
, qf_inum
);
2837 return PTR_ERR(qf_inode
);
2840 /* Don't account quota for quota files to avoid recursion */
2841 inode_lock(qf_inode
);
2842 qf_inode
->i_flags
|= S_NOQUOTA
;
2844 if ((F2FS_I(qf_inode
)->i_flags
& qf_flag
) != qf_flag
) {
2845 F2FS_I(qf_inode
)->i_flags
|= qf_flag
;
2846 f2fs_set_inode_flags(qf_inode
);
2848 inode_unlock(qf_inode
);
2850 err
= dquot_load_quota_inode(qf_inode
, type
, format_id
, flags
);
2855 static int f2fs_enable_quotas(struct super_block
*sb
)
2857 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
2859 unsigned long qf_inum
;
2860 bool quota_mopt
[MAXQUOTAS
] = {
2861 test_opt(sbi
, USRQUOTA
),
2862 test_opt(sbi
, GRPQUOTA
),
2863 test_opt(sbi
, PRJQUOTA
),
2866 if (is_set_ckpt_flags(F2FS_SB(sb
), CP_QUOTA_NEED_FSCK_FLAG
)) {
2867 f2fs_err(sbi
, "quota file may be corrupted, skip loading it");
2871 sb_dqopt(sb
)->flags
|= DQUOT_QUOTA_SYS_FILE
;
2873 for (type
= 0; type
< MAXQUOTAS
; type
++) {
2874 qf_inum
= f2fs_qf_ino(sb
, type
);
2876 err
= f2fs_quota_enable(sb
, type
, QFMT_VFS_V1
,
2877 DQUOT_USAGE_ENABLED
|
2878 (quota_mopt
[type
] ? DQUOT_LIMITS_ENABLED
: 0));
2880 f2fs_err(sbi
, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
2882 for (type
--; type
>= 0; type
--)
2883 dquot_quota_off(sb
, type
);
2884 set_sbi_flag(F2FS_SB(sb
),
2885 SBI_QUOTA_NEED_REPAIR
);
2893 static int f2fs_quota_sync_file(struct f2fs_sb_info
*sbi
, int type
)
2895 struct quota_info
*dqopt
= sb_dqopt(sbi
->sb
);
2896 struct address_space
*mapping
= dqopt
->files
[type
]->i_mapping
;
2899 ret
= dquot_writeback_dquots(sbi
->sb
, type
);
2903 ret
= filemap_fdatawrite(mapping
);
2907 /* if we are using journalled quota */
2908 if (is_journalled_quota(sbi
))
2911 ret
= filemap_fdatawait(mapping
);
2913 truncate_inode_pages(&dqopt
->files
[type
]->i_data
, 0);
2916 set_sbi_flag(sbi
, SBI_QUOTA_NEED_REPAIR
);
2920 int f2fs_quota_sync(struct super_block
*sb
, int type
)
2922 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
2923 struct quota_info
*dqopt
= sb_dqopt(sb
);
2928 * Now when everything is written we can discard the pagecache so
2929 * that userspace sees the changes.
2931 for (cnt
= 0; cnt
< MAXQUOTAS
; cnt
++) {
2933 if (type
!= -1 && cnt
!= type
)
2936 if (!sb_has_quota_active(sb
, cnt
))
2939 if (!f2fs_sb_has_quota_ino(sbi
))
2940 inode_lock(dqopt
->files
[cnt
]);
2945 * f2fs_down_read(quota_sem)
2946 * dquot_writeback_dquots()
2949 * f2fs_down_read(quota_sem)
2952 f2fs_down_read(&sbi
->quota_sem
);
2954 ret
= f2fs_quota_sync_file(sbi
, cnt
);
2956 f2fs_up_read(&sbi
->quota_sem
);
2957 f2fs_unlock_op(sbi
);
2959 if (!f2fs_sb_has_quota_ino(sbi
))
2960 inode_unlock(dqopt
->files
[cnt
]);
2968 static int f2fs_quota_on(struct super_block
*sb
, int type
, int format_id
,
2969 const struct path
*path
)
2971 struct inode
*inode
;
2974 /* if quota sysfile exists, deny enabling quota with specific file */
2975 if (f2fs_sb_has_quota_ino(F2FS_SB(sb
))) {
2976 f2fs_err(F2FS_SB(sb
), "quota sysfile already exists");
2980 if (path
->dentry
->d_sb
!= sb
)
2983 err
= f2fs_quota_sync(sb
, type
);
2987 inode
= d_inode(path
->dentry
);
2989 err
= filemap_fdatawrite(inode
->i_mapping
);
2993 err
= filemap_fdatawait(inode
->i_mapping
);
2997 err
= dquot_quota_on(sb
, type
, format_id
, path
);
3002 F2FS_I(inode
)->i_flags
|= F2FS_QUOTA_DEFAULT_FL
;
3003 f2fs_set_inode_flags(inode
);
3004 inode_unlock(inode
);
3005 f2fs_mark_inode_dirty_sync(inode
, false);
3010 static int __f2fs_quota_off(struct super_block
*sb
, int type
)
3012 struct inode
*inode
= sb_dqopt(sb
)->files
[type
];
3015 if (!inode
|| !igrab(inode
))
3016 return dquot_quota_off(sb
, type
);
3018 err
= f2fs_quota_sync(sb
, type
);
3022 err
= dquot_quota_off(sb
, type
);
3023 if (err
|| f2fs_sb_has_quota_ino(F2FS_SB(sb
)))
3027 F2FS_I(inode
)->i_flags
&= ~F2FS_QUOTA_DEFAULT_FL
;
3028 f2fs_set_inode_flags(inode
);
3029 inode_unlock(inode
);
3030 f2fs_mark_inode_dirty_sync(inode
, false);
3036 static int f2fs_quota_off(struct super_block
*sb
, int type
)
3038 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
3041 err
= __f2fs_quota_off(sb
, type
);
3044 * quotactl can shutdown journalled quota, result in inconsistence
3045 * between quota record and fs data by following updates, tag the
3046 * flag to let fsck be aware of it.
3048 if (is_journalled_quota(sbi
))
3049 set_sbi_flag(sbi
, SBI_QUOTA_NEED_REPAIR
);
3053 void f2fs_quota_off_umount(struct super_block
*sb
)
3058 for (type
= 0; type
< MAXQUOTAS
; type
++) {
3059 err
= __f2fs_quota_off(sb
, type
);
3061 int ret
= dquot_quota_off(sb
, type
);
3063 f2fs_err(F2FS_SB(sb
), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
3065 set_sbi_flag(F2FS_SB(sb
), SBI_QUOTA_NEED_REPAIR
);
3069 * In case of checkpoint=disable, we must flush quota blocks.
3070 * This can cause NULL exception for node_inode in end_io, since
3071 * put_super already dropped it.
3073 sync_filesystem(sb
);
3076 static void f2fs_truncate_quota_inode_pages(struct super_block
*sb
)
3078 struct quota_info
*dqopt
= sb_dqopt(sb
);
3081 for (type
= 0; type
< MAXQUOTAS
; type
++) {
3082 if (!dqopt
->files
[type
])
3084 f2fs_inode_synced(dqopt
->files
[type
]);
3088 static int f2fs_dquot_commit(struct dquot
*dquot
)
3090 struct f2fs_sb_info
*sbi
= F2FS_SB(dquot
->dq_sb
);
3093 f2fs_down_read_nested(&sbi
->quota_sem
, SINGLE_DEPTH_NESTING
);
3094 ret
= dquot_commit(dquot
);
3096 set_sbi_flag(sbi
, SBI_QUOTA_NEED_REPAIR
);
3097 f2fs_up_read(&sbi
->quota_sem
);
3101 static int f2fs_dquot_acquire(struct dquot
*dquot
)
3103 struct f2fs_sb_info
*sbi
= F2FS_SB(dquot
->dq_sb
);
3106 f2fs_down_read(&sbi
->quota_sem
);
3107 ret
= dquot_acquire(dquot
);
3109 set_sbi_flag(sbi
, SBI_QUOTA_NEED_REPAIR
);
3110 f2fs_up_read(&sbi
->quota_sem
);
3114 static int f2fs_dquot_release(struct dquot
*dquot
)
3116 struct f2fs_sb_info
*sbi
= F2FS_SB(dquot
->dq_sb
);
3117 int ret
= dquot_release(dquot
);
3120 set_sbi_flag(sbi
, SBI_QUOTA_NEED_REPAIR
);
3124 static int f2fs_dquot_mark_dquot_dirty(struct dquot
*dquot
)
3126 struct super_block
*sb
= dquot
->dq_sb
;
3127 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
3128 int ret
= dquot_mark_dquot_dirty(dquot
);
3130 /* if we are using journalled quota */
3131 if (is_journalled_quota(sbi
))
3132 set_sbi_flag(sbi
, SBI_QUOTA_NEED_FLUSH
);
3137 static int f2fs_dquot_commit_info(struct super_block
*sb
, int type
)
3139 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
3140 int ret
= dquot_commit_info(sb
, type
);
3143 set_sbi_flag(sbi
, SBI_QUOTA_NEED_REPAIR
);
3147 static int f2fs_get_projid(struct inode
*inode
, kprojid_t
*projid
)
3149 *projid
= F2FS_I(inode
)->i_projid
;
3153 static const struct dquot_operations f2fs_quota_operations
= {
3154 .get_reserved_space
= f2fs_get_reserved_space
,
3155 .write_dquot
= f2fs_dquot_commit
,
3156 .acquire_dquot
= f2fs_dquot_acquire
,
3157 .release_dquot
= f2fs_dquot_release
,
3158 .mark_dirty
= f2fs_dquot_mark_dquot_dirty
,
3159 .write_info
= f2fs_dquot_commit_info
,
3160 .alloc_dquot
= dquot_alloc
,
3161 .destroy_dquot
= dquot_destroy
,
3162 .get_projid
= f2fs_get_projid
,
3163 .get_next_id
= dquot_get_next_id
,
3166 static const struct quotactl_ops f2fs_quotactl_ops
= {
3167 .quota_on
= f2fs_quota_on
,
3168 .quota_off
= f2fs_quota_off
,
3169 .quota_sync
= f2fs_quota_sync
,
3170 .get_state
= dquot_get_state
,
3171 .set_info
= dquot_set_dqinfo
,
3172 .get_dqblk
= dquot_get_dqblk
,
3173 .set_dqblk
= dquot_set_dqblk
,
3174 .get_nextdqblk
= dquot_get_next_dqblk
,
3177 int f2fs_dquot_initialize(struct inode
*inode
)
3182 int f2fs_quota_sync(struct super_block
*sb
, int type
)
3187 void f2fs_quota_off_umount(struct super_block
*sb
)
3192 static const struct super_operations f2fs_sops
= {
3193 .alloc_inode
= f2fs_alloc_inode
,
3194 .free_inode
= f2fs_free_inode
,
3195 .drop_inode
= f2fs_drop_inode
,
3196 .write_inode
= f2fs_write_inode
,
3197 .dirty_inode
= f2fs_dirty_inode
,
3198 .show_options
= f2fs_show_options
,
3200 .quota_read
= f2fs_quota_read
,
3201 .quota_write
= f2fs_quota_write
,
3202 .get_dquots
= f2fs_get_dquots
,
3204 .evict_inode
= f2fs_evict_inode
,
3205 .put_super
= f2fs_put_super
,
3206 .sync_fs
= f2fs_sync_fs
,
3207 .freeze_fs
= f2fs_freeze
,
3208 .unfreeze_fs
= f2fs_unfreeze
,
3209 .statfs
= f2fs_statfs
,
3210 .remount_fs
= f2fs_remount
,
3213 #ifdef CONFIG_FS_ENCRYPTION
3214 static int f2fs_get_context(struct inode
*inode
, void *ctx
, size_t len
)
3216 return f2fs_getxattr(inode
, F2FS_XATTR_INDEX_ENCRYPTION
,
3217 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT
,
3221 static int f2fs_set_context(struct inode
*inode
, const void *ctx
, size_t len
,
3224 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
3227 * Encrypting the root directory is not allowed because fsck
3228 * expects lost+found directory to exist and remain unencrypted
3229 * if LOST_FOUND feature is enabled.
3232 if (f2fs_sb_has_lost_found(sbi
) &&
3233 inode
->i_ino
== F2FS_ROOT_INO(sbi
))
3236 return f2fs_setxattr(inode
, F2FS_XATTR_INDEX_ENCRYPTION
,
3237 F2FS_XATTR_NAME_ENCRYPTION_CONTEXT
,
3238 ctx
, len
, fs_data
, XATTR_CREATE
);
3241 static const union fscrypt_policy
*f2fs_get_dummy_policy(struct super_block
*sb
)
3243 return F2FS_OPTION(F2FS_SB(sb
)).dummy_enc_policy
.policy
;
3246 static bool f2fs_has_stable_inodes(struct super_block
*sb
)
3251 static struct block_device
**f2fs_get_devices(struct super_block
*sb
,
3252 unsigned int *num_devs
)
3254 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
3255 struct block_device
**devs
;
3258 if (!f2fs_is_multi_device(sbi
))
3261 devs
= kmalloc_array(sbi
->s_ndevs
, sizeof(*devs
), GFP_KERNEL
);
3263 return ERR_PTR(-ENOMEM
);
3265 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
3266 devs
[i
] = FDEV(i
).bdev
;
3267 *num_devs
= sbi
->s_ndevs
;
3271 static const struct fscrypt_operations f2fs_cryptops
= {
3272 .needs_bounce_pages
= 1,
3273 .has_32bit_inodes
= 1,
3274 .supports_subblock_data_units
= 1,
3275 .legacy_key_prefix
= "f2fs:",
3276 .get_context
= f2fs_get_context
,
3277 .set_context
= f2fs_set_context
,
3278 .get_dummy_policy
= f2fs_get_dummy_policy
,
3279 .empty_dir
= f2fs_empty_dir
,
3280 .has_stable_inodes
= f2fs_has_stable_inodes
,
3281 .get_devices
= f2fs_get_devices
,
3285 static struct inode
*f2fs_nfs_get_inode(struct super_block
*sb
,
3286 u64 ino
, u32 generation
)
3288 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
3289 struct inode
*inode
;
3291 if (f2fs_check_nid_range(sbi
, ino
))
3292 return ERR_PTR(-ESTALE
);
3295 * f2fs_iget isn't quite right if the inode is currently unallocated!
3296 * However f2fs_iget currently does appropriate checks to handle stale
3297 * inodes so everything is OK.
3299 inode
= f2fs_iget(sb
, ino
);
3301 return ERR_CAST(inode
);
3302 if (unlikely(generation
&& inode
->i_generation
!= generation
)) {
3303 /* we didn't find the right inode.. */
3305 return ERR_PTR(-ESTALE
);
3310 static struct dentry
*f2fs_fh_to_dentry(struct super_block
*sb
, struct fid
*fid
,
3311 int fh_len
, int fh_type
)
3313 return generic_fh_to_dentry(sb
, fid
, fh_len
, fh_type
,
3314 f2fs_nfs_get_inode
);
3317 static struct dentry
*f2fs_fh_to_parent(struct super_block
*sb
, struct fid
*fid
,
3318 int fh_len
, int fh_type
)
3320 return generic_fh_to_parent(sb
, fid
, fh_len
, fh_type
,
3321 f2fs_nfs_get_inode
);
3324 static const struct export_operations f2fs_export_ops
= {
3325 .encode_fh
= generic_encode_ino32_fh
,
3326 .fh_to_dentry
= f2fs_fh_to_dentry
,
3327 .fh_to_parent
= f2fs_fh_to_parent
,
3328 .get_parent
= f2fs_get_parent
,
3331 loff_t
max_file_blocks(struct inode
*inode
)
3337 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
3338 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
3339 * space in inode.i_addr, it will be more safe to reassign
3343 if (inode
&& f2fs_compressed_file(inode
))
3344 leaf_count
= ADDRS_PER_BLOCK(inode
);
3346 leaf_count
= DEF_ADDRS_PER_BLOCK
;
3348 /* two direct node blocks */
3349 result
+= (leaf_count
* 2);
3351 /* two indirect node blocks */
3352 leaf_count
*= NIDS_PER_BLOCK
;
3353 result
+= (leaf_count
* 2);
3355 /* one double indirect node block */
3356 leaf_count
*= NIDS_PER_BLOCK
;
3357 result
+= leaf_count
;
3360 * For compatibility with FSCRYPT_POLICY_FLAG_IV_INO_LBLK_{64,32} with
3361 * a 4K crypto data unit, we must restrict the max filesize to what can
3362 * fit within U32_MAX + 1 data units.
3365 result
= min(result
, (((loff_t
)U32_MAX
+ 1) * 4096) >> F2FS_BLKSIZE_BITS
);
3370 static int __f2fs_commit_super(struct buffer_head
*bh
,
3371 struct f2fs_super_block
*super
)
3375 memcpy(bh
->b_data
+ F2FS_SUPER_OFFSET
, super
, sizeof(*super
));
3376 set_buffer_dirty(bh
);
3379 /* it's rare case, we can do fua all the time */
3380 return __sync_dirty_buffer(bh
, REQ_SYNC
| REQ_PREFLUSH
| REQ_FUA
);
3383 static inline bool sanity_check_area_boundary(struct f2fs_sb_info
*sbi
,
3384 struct buffer_head
*bh
)
3386 struct f2fs_super_block
*raw_super
= (struct f2fs_super_block
*)
3387 (bh
->b_data
+ F2FS_SUPER_OFFSET
);
3388 struct super_block
*sb
= sbi
->sb
;
3389 u32 segment0_blkaddr
= le32_to_cpu(raw_super
->segment0_blkaddr
);
3390 u32 cp_blkaddr
= le32_to_cpu(raw_super
->cp_blkaddr
);
3391 u32 sit_blkaddr
= le32_to_cpu(raw_super
->sit_blkaddr
);
3392 u32 nat_blkaddr
= le32_to_cpu(raw_super
->nat_blkaddr
);
3393 u32 ssa_blkaddr
= le32_to_cpu(raw_super
->ssa_blkaddr
);
3394 u32 main_blkaddr
= le32_to_cpu(raw_super
->main_blkaddr
);
3395 u32 segment_count_ckpt
= le32_to_cpu(raw_super
->segment_count_ckpt
);
3396 u32 segment_count_sit
= le32_to_cpu(raw_super
->segment_count_sit
);
3397 u32 segment_count_nat
= le32_to_cpu(raw_super
->segment_count_nat
);
3398 u32 segment_count_ssa
= le32_to_cpu(raw_super
->segment_count_ssa
);
3399 u32 segment_count_main
= le32_to_cpu(raw_super
->segment_count_main
);
3400 u32 segment_count
= le32_to_cpu(raw_super
->segment_count
);
3401 u32 log_blocks_per_seg
= le32_to_cpu(raw_super
->log_blocks_per_seg
);
3402 u64 main_end_blkaddr
= main_blkaddr
+
3403 (segment_count_main
<< log_blocks_per_seg
);
3404 u64 seg_end_blkaddr
= segment0_blkaddr
+
3405 (segment_count
<< log_blocks_per_seg
);
3407 if (segment0_blkaddr
!= cp_blkaddr
) {
3408 f2fs_info(sbi
, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
3409 segment0_blkaddr
, cp_blkaddr
);
3413 if (cp_blkaddr
+ (segment_count_ckpt
<< log_blocks_per_seg
) !=
3415 f2fs_info(sbi
, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
3416 cp_blkaddr
, sit_blkaddr
,
3417 segment_count_ckpt
<< log_blocks_per_seg
);
3421 if (sit_blkaddr
+ (segment_count_sit
<< log_blocks_per_seg
) !=
3423 f2fs_info(sbi
, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
3424 sit_blkaddr
, nat_blkaddr
,
3425 segment_count_sit
<< log_blocks_per_seg
);
3429 if (nat_blkaddr
+ (segment_count_nat
<< log_blocks_per_seg
) !=
3431 f2fs_info(sbi
, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
3432 nat_blkaddr
, ssa_blkaddr
,
3433 segment_count_nat
<< log_blocks_per_seg
);
3437 if (ssa_blkaddr
+ (segment_count_ssa
<< log_blocks_per_seg
) !=
3439 f2fs_info(sbi
, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
3440 ssa_blkaddr
, main_blkaddr
,
3441 segment_count_ssa
<< log_blocks_per_seg
);
3445 if (main_end_blkaddr
> seg_end_blkaddr
) {
3446 f2fs_info(sbi
, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)",
3447 main_blkaddr
, seg_end_blkaddr
,
3448 segment_count_main
<< log_blocks_per_seg
);
3450 } else if (main_end_blkaddr
< seg_end_blkaddr
) {
3454 /* fix in-memory information all the time */
3455 raw_super
->segment_count
= cpu_to_le32((main_end_blkaddr
-
3456 segment0_blkaddr
) >> log_blocks_per_seg
);
3458 if (f2fs_readonly(sb
) || f2fs_hw_is_readonly(sbi
)) {
3459 set_sbi_flag(sbi
, SBI_NEED_SB_WRITE
);
3462 err
= __f2fs_commit_super(bh
, NULL
);
3463 res
= err
? "failed" : "done";
3465 f2fs_info(sbi
, "Fix alignment : %s, start(%u) end(%llu) block(%u)",
3466 res
, main_blkaddr
, seg_end_blkaddr
,
3467 segment_count_main
<< log_blocks_per_seg
);
3474 static int sanity_check_raw_super(struct f2fs_sb_info
*sbi
,
3475 struct buffer_head
*bh
)
3477 block_t segment_count
, segs_per_sec
, secs_per_zone
, segment_count_main
;
3478 block_t total_sections
, blocks_per_seg
;
3479 struct f2fs_super_block
*raw_super
= (struct f2fs_super_block
*)
3480 (bh
->b_data
+ F2FS_SUPER_OFFSET
);
3481 size_t crc_offset
= 0;
3484 if (le32_to_cpu(raw_super
->magic
) != F2FS_SUPER_MAGIC
) {
3485 f2fs_info(sbi
, "Magic Mismatch, valid(0x%x) - read(0x%x)",
3486 F2FS_SUPER_MAGIC
, le32_to_cpu(raw_super
->magic
));
3490 /* Check checksum_offset and crc in superblock */
3491 if (__F2FS_HAS_FEATURE(raw_super
, F2FS_FEATURE_SB_CHKSUM
)) {
3492 crc_offset
= le32_to_cpu(raw_super
->checksum_offset
);
3494 offsetof(struct f2fs_super_block
, crc
)) {
3495 f2fs_info(sbi
, "Invalid SB checksum offset: %zu",
3497 return -EFSCORRUPTED
;
3499 crc
= le32_to_cpu(raw_super
->crc
);
3500 if (!f2fs_crc_valid(sbi
, crc
, raw_super
, crc_offset
)) {
3501 f2fs_info(sbi
, "Invalid SB checksum value: %u", crc
);
3502 return -EFSCORRUPTED
;
3506 /* Currently, support only 4KB block size */
3507 if (le32_to_cpu(raw_super
->log_blocksize
) != F2FS_BLKSIZE_BITS
) {
3508 f2fs_info(sbi
, "Invalid log_blocksize (%u), supports only %u",
3509 le32_to_cpu(raw_super
->log_blocksize
),
3511 return -EFSCORRUPTED
;
3514 /* check log blocks per segment */
3515 if (le32_to_cpu(raw_super
->log_blocks_per_seg
) != 9) {
3516 f2fs_info(sbi
, "Invalid log blocks per segment (%u)",
3517 le32_to_cpu(raw_super
->log_blocks_per_seg
));
3518 return -EFSCORRUPTED
;
3521 /* Currently, support 512/1024/2048/4096/16K bytes sector size */
3522 if (le32_to_cpu(raw_super
->log_sectorsize
) >
3523 F2FS_MAX_LOG_SECTOR_SIZE
||
3524 le32_to_cpu(raw_super
->log_sectorsize
) <
3525 F2FS_MIN_LOG_SECTOR_SIZE
) {
3526 f2fs_info(sbi
, "Invalid log sectorsize (%u)",
3527 le32_to_cpu(raw_super
->log_sectorsize
));
3528 return -EFSCORRUPTED
;
3530 if (le32_to_cpu(raw_super
->log_sectors_per_block
) +
3531 le32_to_cpu(raw_super
->log_sectorsize
) !=
3532 F2FS_MAX_LOG_SECTOR_SIZE
) {
3533 f2fs_info(sbi
, "Invalid log sectors per block(%u) log sectorsize(%u)",
3534 le32_to_cpu(raw_super
->log_sectors_per_block
),
3535 le32_to_cpu(raw_super
->log_sectorsize
));
3536 return -EFSCORRUPTED
;
3539 segment_count
= le32_to_cpu(raw_super
->segment_count
);
3540 segment_count_main
= le32_to_cpu(raw_super
->segment_count_main
);
3541 segs_per_sec
= le32_to_cpu(raw_super
->segs_per_sec
);
3542 secs_per_zone
= le32_to_cpu(raw_super
->secs_per_zone
);
3543 total_sections
= le32_to_cpu(raw_super
->section_count
);
3545 /* blocks_per_seg should be 512, given the above check */
3546 blocks_per_seg
= BIT(le32_to_cpu(raw_super
->log_blocks_per_seg
));
3548 if (segment_count
> F2FS_MAX_SEGMENT
||
3549 segment_count
< F2FS_MIN_SEGMENTS
) {
3550 f2fs_info(sbi
, "Invalid segment count (%u)", segment_count
);
3551 return -EFSCORRUPTED
;
3554 if (total_sections
> segment_count_main
|| total_sections
< 1 ||
3555 segs_per_sec
> segment_count
|| !segs_per_sec
) {
3556 f2fs_info(sbi
, "Invalid segment/section count (%u, %u x %u)",
3557 segment_count
, total_sections
, segs_per_sec
);
3558 return -EFSCORRUPTED
;
3561 if (segment_count_main
!= total_sections
* segs_per_sec
) {
3562 f2fs_info(sbi
, "Invalid segment/section count (%u != %u * %u)",
3563 segment_count_main
, total_sections
, segs_per_sec
);
3564 return -EFSCORRUPTED
;
3567 if ((segment_count
/ segs_per_sec
) < total_sections
) {
3568 f2fs_info(sbi
, "Small segment_count (%u < %u * %u)",
3569 segment_count
, segs_per_sec
, total_sections
);
3570 return -EFSCORRUPTED
;
3573 if (segment_count
> (le64_to_cpu(raw_super
->block_count
) >> 9)) {
3574 f2fs_info(sbi
, "Wrong segment_count / block_count (%u > %llu)",
3575 segment_count
, le64_to_cpu(raw_super
->block_count
));
3576 return -EFSCORRUPTED
;
3579 if (RDEV(0).path
[0]) {
3580 block_t dev_seg_count
= le32_to_cpu(RDEV(0).total_segments
);
3583 while (i
< MAX_DEVICES
&& RDEV(i
).path
[0]) {
3584 dev_seg_count
+= le32_to_cpu(RDEV(i
).total_segments
);
3587 if (segment_count
!= dev_seg_count
) {
3588 f2fs_info(sbi
, "Segment count (%u) mismatch with total segments from devices (%u)",
3589 segment_count
, dev_seg_count
);
3590 return -EFSCORRUPTED
;
3593 if (__F2FS_HAS_FEATURE(raw_super
, F2FS_FEATURE_BLKZONED
) &&
3594 !bdev_is_zoned(sbi
->sb
->s_bdev
)) {
3595 f2fs_info(sbi
, "Zoned block device path is missing");
3596 return -EFSCORRUPTED
;
3600 if (secs_per_zone
> total_sections
|| !secs_per_zone
) {
3601 f2fs_info(sbi
, "Wrong secs_per_zone / total_sections (%u, %u)",
3602 secs_per_zone
, total_sections
);
3603 return -EFSCORRUPTED
;
3605 if (le32_to_cpu(raw_super
->extension_count
) > F2FS_MAX_EXTENSION
||
3606 raw_super
->hot_ext_count
> F2FS_MAX_EXTENSION
||
3607 (le32_to_cpu(raw_super
->extension_count
) +
3608 raw_super
->hot_ext_count
) > F2FS_MAX_EXTENSION
) {
3609 f2fs_info(sbi
, "Corrupted extension count (%u + %u > %u)",
3610 le32_to_cpu(raw_super
->extension_count
),
3611 raw_super
->hot_ext_count
,
3612 F2FS_MAX_EXTENSION
);
3613 return -EFSCORRUPTED
;
3616 if (le32_to_cpu(raw_super
->cp_payload
) >=
3617 (blocks_per_seg
- F2FS_CP_PACKS
-
3618 NR_CURSEG_PERSIST_TYPE
)) {
3619 f2fs_info(sbi
, "Insane cp_payload (%u >= %u)",
3620 le32_to_cpu(raw_super
->cp_payload
),
3621 blocks_per_seg
- F2FS_CP_PACKS
-
3622 NR_CURSEG_PERSIST_TYPE
);
3623 return -EFSCORRUPTED
;
3626 /* check reserved ino info */
3627 if (le32_to_cpu(raw_super
->node_ino
) != 1 ||
3628 le32_to_cpu(raw_super
->meta_ino
) != 2 ||
3629 le32_to_cpu(raw_super
->root_ino
) != 3) {
3630 f2fs_info(sbi
, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
3631 le32_to_cpu(raw_super
->node_ino
),
3632 le32_to_cpu(raw_super
->meta_ino
),
3633 le32_to_cpu(raw_super
->root_ino
));
3634 return -EFSCORRUPTED
;
3637 /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
3638 if (sanity_check_area_boundary(sbi
, bh
))
3639 return -EFSCORRUPTED
;
3644 int f2fs_sanity_check_ckpt(struct f2fs_sb_info
*sbi
)
3646 unsigned int total
, fsmeta
;
3647 struct f2fs_super_block
*raw_super
= F2FS_RAW_SUPER(sbi
);
3648 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
3649 unsigned int ovp_segments
, reserved_segments
;
3650 unsigned int main_segs
, blocks_per_seg
;
3651 unsigned int sit_segs
, nat_segs
;
3652 unsigned int sit_bitmap_size
, nat_bitmap_size
;
3653 unsigned int log_blocks_per_seg
;
3654 unsigned int segment_count_main
;
3655 unsigned int cp_pack_start_sum
, cp_payload
;
3656 block_t user_block_count
, valid_user_blocks
;
3657 block_t avail_node_count
, valid_node_count
;
3658 unsigned int nat_blocks
, nat_bits_bytes
, nat_bits_blocks
;
3661 total
= le32_to_cpu(raw_super
->segment_count
);
3662 fsmeta
= le32_to_cpu(raw_super
->segment_count_ckpt
);
3663 sit_segs
= le32_to_cpu(raw_super
->segment_count_sit
);
3665 nat_segs
= le32_to_cpu(raw_super
->segment_count_nat
);
3667 fsmeta
+= le32_to_cpu(ckpt
->rsvd_segment_count
);
3668 fsmeta
+= le32_to_cpu(raw_super
->segment_count_ssa
);
3670 if (unlikely(fsmeta
>= total
))
3673 ovp_segments
= le32_to_cpu(ckpt
->overprov_segment_count
);
3674 reserved_segments
= le32_to_cpu(ckpt
->rsvd_segment_count
);
3676 if (!f2fs_sb_has_readonly(sbi
) &&
3677 unlikely(fsmeta
< F2FS_MIN_META_SEGMENTS
||
3678 ovp_segments
== 0 || reserved_segments
== 0)) {
3679 f2fs_err(sbi
, "Wrong layout: check mkfs.f2fs version");
3682 user_block_count
= le64_to_cpu(ckpt
->user_block_count
);
3683 segment_count_main
= le32_to_cpu(raw_super
->segment_count_main
) +
3684 (f2fs_sb_has_readonly(sbi
) ? 1 : 0);
3685 log_blocks_per_seg
= le32_to_cpu(raw_super
->log_blocks_per_seg
);
3686 if (!user_block_count
|| user_block_count
>=
3687 segment_count_main
<< log_blocks_per_seg
) {
3688 f2fs_err(sbi
, "Wrong user_block_count: %u",
3693 valid_user_blocks
= le64_to_cpu(ckpt
->valid_block_count
);
3694 if (valid_user_blocks
> user_block_count
) {
3695 f2fs_err(sbi
, "Wrong valid_user_blocks: %u, user_block_count: %u",
3696 valid_user_blocks
, user_block_count
);
3700 valid_node_count
= le32_to_cpu(ckpt
->valid_node_count
);
3701 avail_node_count
= sbi
->total_node_count
- F2FS_RESERVED_NODE_NUM
;
3702 if (valid_node_count
> avail_node_count
) {
3703 f2fs_err(sbi
, "Wrong valid_node_count: %u, avail_node_count: %u",
3704 valid_node_count
, avail_node_count
);
3708 main_segs
= le32_to_cpu(raw_super
->segment_count_main
);
3709 blocks_per_seg
= sbi
->blocks_per_seg
;
3711 for (i
= 0; i
< NR_CURSEG_NODE_TYPE
; i
++) {
3712 if (le32_to_cpu(ckpt
->cur_node_segno
[i
]) >= main_segs
||
3713 le16_to_cpu(ckpt
->cur_node_blkoff
[i
]) >= blocks_per_seg
)
3716 if (f2fs_sb_has_readonly(sbi
))
3719 for (j
= i
+ 1; j
< NR_CURSEG_NODE_TYPE
; j
++) {
3720 if (le32_to_cpu(ckpt
->cur_node_segno
[i
]) ==
3721 le32_to_cpu(ckpt
->cur_node_segno
[j
])) {
3722 f2fs_err(sbi
, "Node segment (%u, %u) has the same segno: %u",
3724 le32_to_cpu(ckpt
->cur_node_segno
[i
]));
3730 for (i
= 0; i
< NR_CURSEG_DATA_TYPE
; i
++) {
3731 if (le32_to_cpu(ckpt
->cur_data_segno
[i
]) >= main_segs
||
3732 le16_to_cpu(ckpt
->cur_data_blkoff
[i
]) >= blocks_per_seg
)
3735 if (f2fs_sb_has_readonly(sbi
))
3738 for (j
= i
+ 1; j
< NR_CURSEG_DATA_TYPE
; j
++) {
3739 if (le32_to_cpu(ckpt
->cur_data_segno
[i
]) ==
3740 le32_to_cpu(ckpt
->cur_data_segno
[j
])) {
3741 f2fs_err(sbi
, "Data segment (%u, %u) has the same segno: %u",
3743 le32_to_cpu(ckpt
->cur_data_segno
[i
]));
3748 for (i
= 0; i
< NR_CURSEG_NODE_TYPE
; i
++) {
3749 for (j
= 0; j
< NR_CURSEG_DATA_TYPE
; j
++) {
3750 if (le32_to_cpu(ckpt
->cur_node_segno
[i
]) ==
3751 le32_to_cpu(ckpt
->cur_data_segno
[j
])) {
3752 f2fs_err(sbi
, "Node segment (%u) and Data segment (%u) has the same segno: %u",
3754 le32_to_cpu(ckpt
->cur_node_segno
[i
]));
3760 sit_bitmap_size
= le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
3761 nat_bitmap_size
= le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
3763 if (sit_bitmap_size
!= ((sit_segs
/ 2) << log_blocks_per_seg
) / 8 ||
3764 nat_bitmap_size
!= ((nat_segs
/ 2) << log_blocks_per_seg
) / 8) {
3765 f2fs_err(sbi
, "Wrong bitmap size: sit: %u, nat:%u",
3766 sit_bitmap_size
, nat_bitmap_size
);
3770 cp_pack_start_sum
= __start_sum_addr(sbi
);
3771 cp_payload
= __cp_payload(sbi
);
3772 if (cp_pack_start_sum
< cp_payload
+ 1 ||
3773 cp_pack_start_sum
> blocks_per_seg
- 1 -
3774 NR_CURSEG_PERSIST_TYPE
) {
3775 f2fs_err(sbi
, "Wrong cp_pack_start_sum: %u",
3780 if (__is_set_ckpt_flags(ckpt
, CP_LARGE_NAT_BITMAP_FLAG
) &&
3781 le32_to_cpu(ckpt
->checksum_offset
) != CP_MIN_CHKSUM_OFFSET
) {
3782 f2fs_warn(sbi
, "using deprecated layout of large_nat_bitmap, "
3783 "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
3784 "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
3785 le32_to_cpu(ckpt
->checksum_offset
));
3789 nat_blocks
= nat_segs
<< log_blocks_per_seg
;
3790 nat_bits_bytes
= nat_blocks
/ BITS_PER_BYTE
;
3791 nat_bits_blocks
= F2FS_BLK_ALIGN((nat_bits_bytes
<< 1) + 8);
3792 if (__is_set_ckpt_flags(ckpt
, CP_NAT_BITS_FLAG
) &&
3793 (cp_payload
+ F2FS_CP_PACKS
+
3794 NR_CURSEG_PERSIST_TYPE
+ nat_bits_blocks
>= blocks_per_seg
)) {
3795 f2fs_warn(sbi
, "Insane cp_payload: %u, nat_bits_blocks: %u)",
3796 cp_payload
, nat_bits_blocks
);
3800 if (unlikely(f2fs_cp_error(sbi
))) {
3801 f2fs_err(sbi
, "A bug case: need to run fsck");
3807 static void init_sb_info(struct f2fs_sb_info
*sbi
)
3809 struct f2fs_super_block
*raw_super
= sbi
->raw_super
;
3812 sbi
->log_sectors_per_block
=
3813 le32_to_cpu(raw_super
->log_sectors_per_block
);
3814 sbi
->log_blocksize
= le32_to_cpu(raw_super
->log_blocksize
);
3815 sbi
->blocksize
= BIT(sbi
->log_blocksize
);
3816 sbi
->log_blocks_per_seg
= le32_to_cpu(raw_super
->log_blocks_per_seg
);
3817 sbi
->blocks_per_seg
= BIT(sbi
->log_blocks_per_seg
);
3818 sbi
->segs_per_sec
= le32_to_cpu(raw_super
->segs_per_sec
);
3819 sbi
->secs_per_zone
= le32_to_cpu(raw_super
->secs_per_zone
);
3820 sbi
->total_sections
= le32_to_cpu(raw_super
->section_count
);
3821 sbi
->total_node_count
=
3822 (le32_to_cpu(raw_super
->segment_count_nat
) / 2)
3823 * sbi
->blocks_per_seg
* NAT_ENTRY_PER_BLOCK
;
3824 F2FS_ROOT_INO(sbi
) = le32_to_cpu(raw_super
->root_ino
);
3825 F2FS_NODE_INO(sbi
) = le32_to_cpu(raw_super
->node_ino
);
3826 F2FS_META_INO(sbi
) = le32_to_cpu(raw_super
->meta_ino
);
3827 sbi
->cur_victim_sec
= NULL_SECNO
;
3828 sbi
->gc_mode
= GC_NORMAL
;
3829 sbi
->next_victim_seg
[BG_GC
] = NULL_SEGNO
;
3830 sbi
->next_victim_seg
[FG_GC
] = NULL_SEGNO
;
3831 sbi
->max_victim_search
= DEF_MAX_VICTIM_SEARCH
;
3832 sbi
->migration_granularity
= sbi
->segs_per_sec
;
3833 sbi
->seq_file_ra_mul
= MIN_RA_MUL
;
3834 sbi
->max_fragment_chunk
= DEF_FRAGMENT_SIZE
;
3835 sbi
->max_fragment_hole
= DEF_FRAGMENT_SIZE
;
3836 spin_lock_init(&sbi
->gc_remaining_trials_lock
);
3837 atomic64_set(&sbi
->current_atomic_write
, 0);
3839 sbi
->dir_level
= DEF_DIR_LEVEL
;
3840 sbi
->interval_time
[CP_TIME
] = DEF_CP_INTERVAL
;
3841 sbi
->interval_time
[REQ_TIME
] = DEF_IDLE_INTERVAL
;
3842 sbi
->interval_time
[DISCARD_TIME
] = DEF_IDLE_INTERVAL
;
3843 sbi
->interval_time
[GC_TIME
] = DEF_IDLE_INTERVAL
;
3844 sbi
->interval_time
[DISABLE_TIME
] = DEF_DISABLE_INTERVAL
;
3845 sbi
->interval_time
[UMOUNT_DISCARD_TIMEOUT
] =
3846 DEF_UMOUNT_DISCARD_TIMEOUT
;
3847 clear_sbi_flag(sbi
, SBI_NEED_FSCK
);
3849 for (i
= 0; i
< NR_COUNT_TYPE
; i
++)
3850 atomic_set(&sbi
->nr_pages
[i
], 0);
3852 for (i
= 0; i
< META
; i
++)
3853 atomic_set(&sbi
->wb_sync_req
[i
], 0);
3855 INIT_LIST_HEAD(&sbi
->s_list
);
3856 mutex_init(&sbi
->umount_mutex
);
3857 init_f2fs_rwsem(&sbi
->io_order_lock
);
3858 spin_lock_init(&sbi
->cp_lock
);
3860 sbi
->dirty_device
= 0;
3861 spin_lock_init(&sbi
->dev_lock
);
3863 init_f2fs_rwsem(&sbi
->sb_lock
);
3864 init_f2fs_rwsem(&sbi
->pin_sem
);
3867 static int init_percpu_info(struct f2fs_sb_info
*sbi
)
3871 err
= percpu_counter_init(&sbi
->alloc_valid_block_count
, 0, GFP_KERNEL
);
3875 err
= percpu_counter_init(&sbi
->rf_node_block_count
, 0, GFP_KERNEL
);
3877 goto err_valid_block
;
3879 err
= percpu_counter_init(&sbi
->total_valid_inode_count
, 0,
3882 goto err_node_block
;
3886 percpu_counter_destroy(&sbi
->rf_node_block_count
);
3888 percpu_counter_destroy(&sbi
->alloc_valid_block_count
);
3892 #ifdef CONFIG_BLK_DEV_ZONED
3894 struct f2fs_report_zones_args
{
3895 struct f2fs_sb_info
*sbi
;
3896 struct f2fs_dev_info
*dev
;
3899 static int f2fs_report_zone_cb(struct blk_zone
*zone
, unsigned int idx
,
3902 struct f2fs_report_zones_args
*rz_args
= data
;
3903 block_t unusable_blocks
= (zone
->len
- zone
->capacity
) >>
3904 F2FS_LOG_SECTORS_PER_BLOCK
;
3906 if (zone
->type
== BLK_ZONE_TYPE_CONVENTIONAL
)
3909 set_bit(idx
, rz_args
->dev
->blkz_seq
);
3910 if (!rz_args
->sbi
->unusable_blocks_per_sec
) {
3911 rz_args
->sbi
->unusable_blocks_per_sec
= unusable_blocks
;
3914 if (rz_args
->sbi
->unusable_blocks_per_sec
!= unusable_blocks
) {
3915 f2fs_err(rz_args
->sbi
, "F2FS supports single zone capacity\n");
3921 static int init_blkz_info(struct f2fs_sb_info
*sbi
, int devi
)
3923 struct block_device
*bdev
= FDEV(devi
).bdev
;
3924 sector_t nr_sectors
= bdev_nr_sectors(bdev
);
3925 struct f2fs_report_zones_args rep_zone_arg
;
3929 if (!f2fs_sb_has_blkzoned(sbi
))
3932 zone_sectors
= bdev_zone_sectors(bdev
);
3933 if (!is_power_of_2(zone_sectors
)) {
3934 f2fs_err(sbi
, "F2FS does not support non power of 2 zone sizes\n");
3938 if (sbi
->blocks_per_blkz
&& sbi
->blocks_per_blkz
!=
3939 SECTOR_TO_BLOCK(zone_sectors
))
3941 sbi
->blocks_per_blkz
= SECTOR_TO_BLOCK(zone_sectors
);
3942 FDEV(devi
).nr_blkz
= div_u64(SECTOR_TO_BLOCK(nr_sectors
),
3943 sbi
->blocks_per_blkz
);
3944 if (nr_sectors
& (zone_sectors
- 1))
3945 FDEV(devi
).nr_blkz
++;
3947 FDEV(devi
).blkz_seq
= f2fs_kvzalloc(sbi
,
3948 BITS_TO_LONGS(FDEV(devi
).nr_blkz
)
3949 * sizeof(unsigned long),
3951 if (!FDEV(devi
).blkz_seq
)
3954 rep_zone_arg
.sbi
= sbi
;
3955 rep_zone_arg
.dev
= &FDEV(devi
);
3957 ret
= blkdev_report_zones(bdev
, 0, BLK_ALL_ZONES
, f2fs_report_zone_cb
,
3966 * Read f2fs raw super block.
3967 * Because we have two copies of super block, so read both of them
3968 * to get the first valid one. If any one of them is broken, we pass
3969 * them recovery flag back to the caller.
3971 static int read_raw_super_block(struct f2fs_sb_info
*sbi
,
3972 struct f2fs_super_block
**raw_super
,
3973 int *valid_super_block
, int *recovery
)
3975 struct super_block
*sb
= sbi
->sb
;
3977 struct buffer_head
*bh
;
3978 struct f2fs_super_block
*super
;
3981 super
= kzalloc(sizeof(struct f2fs_super_block
), GFP_KERNEL
);
3985 for (block
= 0; block
< 2; block
++) {
3986 bh
= sb_bread(sb
, block
);
3988 f2fs_err(sbi
, "Unable to read %dth superblock",
3995 /* sanity checking of raw super */
3996 err
= sanity_check_raw_super(sbi
, bh
);
3998 f2fs_err(sbi
, "Can't find valid F2FS filesystem in %dth superblock",
4006 memcpy(super
, bh
->b_data
+ F2FS_SUPER_OFFSET
,
4008 *valid_super_block
= block
;
4014 /* No valid superblock */
4023 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
)
4025 struct buffer_head
*bh
;
4029 if ((recover
&& f2fs_readonly(sbi
->sb
)) ||
4030 f2fs_hw_is_readonly(sbi
)) {
4031 set_sbi_flag(sbi
, SBI_NEED_SB_WRITE
);
4035 /* we should update superblock crc here */
4036 if (!recover
&& f2fs_sb_has_sb_chksum(sbi
)) {
4037 crc
= f2fs_crc32(sbi
, F2FS_RAW_SUPER(sbi
),
4038 offsetof(struct f2fs_super_block
, crc
));
4039 F2FS_RAW_SUPER(sbi
)->crc
= cpu_to_le32(crc
);
4042 /* write back-up superblock first */
4043 bh
= sb_bread(sbi
->sb
, sbi
->valid_super_block
? 0 : 1);
4046 err
= __f2fs_commit_super(bh
, F2FS_RAW_SUPER(sbi
));
4049 /* if we are in recovery path, skip writing valid superblock */
4053 /* write current valid superblock */
4054 bh
= sb_bread(sbi
->sb
, sbi
->valid_super_block
);
4057 err
= __f2fs_commit_super(bh
, F2FS_RAW_SUPER(sbi
));
4062 static void save_stop_reason(struct f2fs_sb_info
*sbi
, unsigned char reason
)
4064 unsigned long flags
;
4066 spin_lock_irqsave(&sbi
->error_lock
, flags
);
4067 if (sbi
->stop_reason
[reason
] < GENMASK(BITS_PER_BYTE
- 1, 0))
4068 sbi
->stop_reason
[reason
]++;
4069 spin_unlock_irqrestore(&sbi
->error_lock
, flags
);
4072 static void f2fs_record_stop_reason(struct f2fs_sb_info
*sbi
)
4074 struct f2fs_super_block
*raw_super
= F2FS_RAW_SUPER(sbi
);
4075 unsigned long flags
;
4078 f2fs_down_write(&sbi
->sb_lock
);
4080 spin_lock_irqsave(&sbi
->error_lock
, flags
);
4081 if (sbi
->error_dirty
) {
4082 memcpy(F2FS_RAW_SUPER(sbi
)->s_errors
, sbi
->errors
,
4084 sbi
->error_dirty
= false;
4086 memcpy(raw_super
->s_stop_reason
, sbi
->stop_reason
, MAX_STOP_REASON
);
4087 spin_unlock_irqrestore(&sbi
->error_lock
, flags
);
4089 err
= f2fs_commit_super(sbi
, false);
4091 f2fs_up_write(&sbi
->sb_lock
);
4093 f2fs_err(sbi
, "f2fs_commit_super fails to record err:%d", err
);
4096 void f2fs_save_errors(struct f2fs_sb_info
*sbi
, unsigned char flag
)
4098 unsigned long flags
;
4100 spin_lock_irqsave(&sbi
->error_lock
, flags
);
4101 if (!test_bit(flag
, (unsigned long *)sbi
->errors
)) {
4102 set_bit(flag
, (unsigned long *)sbi
->errors
);
4103 sbi
->error_dirty
= true;
4105 spin_unlock_irqrestore(&sbi
->error_lock
, flags
);
4108 static bool f2fs_update_errors(struct f2fs_sb_info
*sbi
)
4110 unsigned long flags
;
4111 bool need_update
= false;
4113 spin_lock_irqsave(&sbi
->error_lock
, flags
);
4114 if (sbi
->error_dirty
) {
4115 memcpy(F2FS_RAW_SUPER(sbi
)->s_errors
, sbi
->errors
,
4117 sbi
->error_dirty
= false;
4120 spin_unlock_irqrestore(&sbi
->error_lock
, flags
);
4125 static void f2fs_record_errors(struct f2fs_sb_info
*sbi
, unsigned char error
)
4129 f2fs_down_write(&sbi
->sb_lock
);
4131 if (!f2fs_update_errors(sbi
))
4134 err
= f2fs_commit_super(sbi
, false);
4136 f2fs_err(sbi
, "f2fs_commit_super fails to record errors:%u, err:%d",
4139 f2fs_up_write(&sbi
->sb_lock
);
4142 void f2fs_handle_error(struct f2fs_sb_info
*sbi
, unsigned char error
)
4144 f2fs_save_errors(sbi
, error
);
4145 f2fs_record_errors(sbi
, error
);
4148 void f2fs_handle_error_async(struct f2fs_sb_info
*sbi
, unsigned char error
)
4150 f2fs_save_errors(sbi
, error
);
4152 if (!sbi
->error_dirty
)
4154 if (!test_bit(error
, (unsigned long *)sbi
->errors
))
4156 schedule_work(&sbi
->s_error_work
);
4159 static bool system_going_down(void)
4161 return system_state
== SYSTEM_HALT
|| system_state
== SYSTEM_POWER_OFF
4162 || system_state
== SYSTEM_RESTART
;
4165 void f2fs_handle_critical_error(struct f2fs_sb_info
*sbi
, unsigned char reason
,
4168 struct super_block
*sb
= sbi
->sb
;
4169 bool shutdown
= reason
== STOP_CP_REASON_SHUTDOWN
;
4170 bool continue_fs
= !shutdown
&&
4171 F2FS_OPTION(sbi
).errors
== MOUNT_ERRORS_CONTINUE
;
4173 set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
4175 if (!f2fs_hw_is_readonly(sbi
)) {
4176 save_stop_reason(sbi
, reason
);
4178 if (irq_context
&& !shutdown
)
4179 schedule_work(&sbi
->s_error_work
);
4181 f2fs_record_stop_reason(sbi
);
4185 * We force ERRORS_RO behavior when system is rebooting. Otherwise we
4186 * could panic during 'reboot -f' as the underlying device got already
4189 if (F2FS_OPTION(sbi
).errors
== MOUNT_ERRORS_PANIC
&&
4190 !shutdown
&& !system_going_down() &&
4191 !is_sbi_flag_set(sbi
, SBI_IS_SHUTDOWN
))
4192 panic("F2FS-fs (device %s): panic forced after error\n",
4196 set_sbi_flag(sbi
, SBI_IS_SHUTDOWN
);
4198 /* continue filesystem operators if errors=continue */
4199 if (continue_fs
|| f2fs_readonly(sb
))
4202 f2fs_warn(sbi
, "Remounting filesystem read-only");
4204 * Make sure updated value of ->s_mount_flags will be visible before
4208 sb
->s_flags
|= SB_RDONLY
;
4211 static void f2fs_record_error_work(struct work_struct
*work
)
4213 struct f2fs_sb_info
*sbi
= container_of(work
,
4214 struct f2fs_sb_info
, s_error_work
);
4216 f2fs_record_stop_reason(sbi
);
4219 static int f2fs_scan_devices(struct f2fs_sb_info
*sbi
)
4221 struct f2fs_super_block
*raw_super
= F2FS_RAW_SUPER(sbi
);
4222 unsigned int max_devices
= MAX_DEVICES
;
4223 unsigned int logical_blksize
;
4224 blk_mode_t mode
= sb_open_mode(sbi
->sb
->s_flags
);
4227 /* Initialize single device information */
4228 if (!RDEV(0).path
[0]) {
4229 if (!bdev_is_zoned(sbi
->sb
->s_bdev
))
4235 * Initialize multiple devices information, or single
4236 * zoned block device information.
4238 sbi
->devs
= f2fs_kzalloc(sbi
,
4239 array_size(max_devices
,
4240 sizeof(struct f2fs_dev_info
)),
4245 logical_blksize
= bdev_logical_block_size(sbi
->sb
->s_bdev
);
4246 sbi
->aligned_blksize
= true;
4248 for (i
= 0; i
< max_devices
; i
++) {
4250 FDEV(0).bdev_file
= sbi
->sb
->s_bdev_file
;
4251 else if (!RDEV(i
).path
[0])
4254 if (max_devices
> 1) {
4255 /* Multi-device mount */
4256 memcpy(FDEV(i
).path
, RDEV(i
).path
, MAX_PATH_LEN
);
4257 FDEV(i
).total_segments
=
4258 le32_to_cpu(RDEV(i
).total_segments
);
4260 FDEV(i
).start_blk
= 0;
4261 FDEV(i
).end_blk
= FDEV(i
).start_blk
+
4262 (FDEV(i
).total_segments
<<
4263 sbi
->log_blocks_per_seg
) - 1 +
4264 le32_to_cpu(raw_super
->segment0_blkaddr
);
4266 FDEV(i
).start_blk
= FDEV(i
- 1).end_blk
+ 1;
4267 FDEV(i
).end_blk
= FDEV(i
).start_blk
+
4268 (FDEV(i
).total_segments
<<
4269 sbi
->log_blocks_per_seg
) - 1;
4270 FDEV(i
).bdev_file
= bdev_file_open_by_path(
4271 FDEV(i
).path
, mode
, sbi
->sb
, NULL
);
4274 if (IS_ERR(FDEV(i
).bdev_file
))
4275 return PTR_ERR(FDEV(i
).bdev_file
);
4277 FDEV(i
).bdev
= file_bdev(FDEV(i
).bdev_file
);
4278 /* to release errored devices */
4279 sbi
->s_ndevs
= i
+ 1;
4281 if (logical_blksize
!= bdev_logical_block_size(FDEV(i
).bdev
))
4282 sbi
->aligned_blksize
= false;
4284 #ifdef CONFIG_BLK_DEV_ZONED
4285 if (bdev_is_zoned(FDEV(i
).bdev
)) {
4286 if (!f2fs_sb_has_blkzoned(sbi
)) {
4287 f2fs_err(sbi
, "Zoned block device feature not enabled");
4290 if (init_blkz_info(sbi
, i
)) {
4291 f2fs_err(sbi
, "Failed to initialize F2FS blkzone information");
4294 if (max_devices
== 1)
4296 f2fs_info(sbi
, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: Host-managed)",
4298 FDEV(i
).total_segments
,
4299 FDEV(i
).start_blk
, FDEV(i
).end_blk
);
4303 f2fs_info(sbi
, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
4305 FDEV(i
).total_segments
,
4306 FDEV(i
).start_blk
, FDEV(i
).end_blk
);
4309 "IO Block Size: %8ld KB", F2FS_IO_SIZE_KB(sbi
));
4313 static int f2fs_setup_casefold(struct f2fs_sb_info
*sbi
)
4315 #if IS_ENABLED(CONFIG_UNICODE)
4316 if (f2fs_sb_has_casefold(sbi
) && !sbi
->sb
->s_encoding
) {
4317 const struct f2fs_sb_encodings
*encoding_info
;
4318 struct unicode_map
*encoding
;
4319 __u16 encoding_flags
;
4321 encoding_info
= f2fs_sb_read_encoding(sbi
->raw_super
);
4322 if (!encoding_info
) {
4324 "Encoding requested by superblock is unknown");
4328 encoding_flags
= le16_to_cpu(sbi
->raw_super
->s_encoding_flags
);
4329 encoding
= utf8_load(encoding_info
->version
);
4330 if (IS_ERR(encoding
)) {
4332 "can't mount with superblock charset: %s-%u.%u.%u "
4333 "not supported by the kernel. flags: 0x%x.",
4334 encoding_info
->name
,
4335 unicode_major(encoding_info
->version
),
4336 unicode_minor(encoding_info
->version
),
4337 unicode_rev(encoding_info
->version
),
4339 return PTR_ERR(encoding
);
4341 f2fs_info(sbi
, "Using encoding defined by superblock: "
4342 "%s-%u.%u.%u with flags 0x%hx", encoding_info
->name
,
4343 unicode_major(encoding_info
->version
),
4344 unicode_minor(encoding_info
->version
),
4345 unicode_rev(encoding_info
->version
),
4348 sbi
->sb
->s_encoding
= encoding
;
4349 sbi
->sb
->s_encoding_flags
= encoding_flags
;
4352 if (f2fs_sb_has_casefold(sbi
)) {
4353 f2fs_err(sbi
, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
4360 static void f2fs_tuning_parameters(struct f2fs_sb_info
*sbi
)
4362 /* adjust parameters according to the volume size */
4363 if (MAIN_SEGS(sbi
) <= SMALL_VOLUME_SEGMENTS
) {
4364 if (f2fs_block_unit_discard(sbi
))
4365 SM_I(sbi
)->dcc_info
->discard_granularity
=
4366 MIN_DISCARD_GRANULARITY
;
4367 if (!f2fs_lfs_mode(sbi
))
4368 SM_I(sbi
)->ipu_policy
= BIT(F2FS_IPU_FORCE
) |
4369 BIT(F2FS_IPU_HONOR_OPU_WRITE
);
4372 sbi
->readdir_ra
= true;
4375 static int f2fs_fill_super(struct super_block
*sb
, void *data
, int silent
)
4377 struct f2fs_sb_info
*sbi
;
4378 struct f2fs_super_block
*raw_super
;
4381 bool skip_recovery
= false, need_fsck
= false;
4382 char *options
= NULL
;
4383 int recovery
, i
, valid_super_block
;
4384 struct curseg_info
*seg_i
;
4387 bool quota_enabled
= false;
4393 valid_super_block
= -1;
4396 /* allocate memory for f2fs-specific super block info */
4397 sbi
= kzalloc(sizeof(struct f2fs_sb_info
), GFP_KERNEL
);
4403 /* initialize locks within allocated memory */
4404 init_f2fs_rwsem(&sbi
->gc_lock
);
4405 mutex_init(&sbi
->writepages
);
4406 init_f2fs_rwsem(&sbi
->cp_global_sem
);
4407 init_f2fs_rwsem(&sbi
->node_write
);
4408 init_f2fs_rwsem(&sbi
->node_change
);
4409 spin_lock_init(&sbi
->stat_lock
);
4410 init_f2fs_rwsem(&sbi
->cp_rwsem
);
4411 init_f2fs_rwsem(&sbi
->quota_sem
);
4412 init_waitqueue_head(&sbi
->cp_wait
);
4413 spin_lock_init(&sbi
->error_lock
);
4415 for (i
= 0; i
< NR_INODE_TYPE
; i
++) {
4416 INIT_LIST_HEAD(&sbi
->inode_list
[i
]);
4417 spin_lock_init(&sbi
->inode_lock
[i
]);
4419 mutex_init(&sbi
->flush_lock
);
4421 /* Load the checksum driver */
4422 sbi
->s_chksum_driver
= crypto_alloc_shash("crc32", 0, 0);
4423 if (IS_ERR(sbi
->s_chksum_driver
)) {
4424 f2fs_err(sbi
, "Cannot load crc32 driver.");
4425 err
= PTR_ERR(sbi
->s_chksum_driver
);
4426 sbi
->s_chksum_driver
= NULL
;
4430 /* set a block size */
4431 if (unlikely(!sb_set_blocksize(sb
, F2FS_BLKSIZE
))) {
4432 f2fs_err(sbi
, "unable to set blocksize");
4436 err
= read_raw_super_block(sbi
, &raw_super
, &valid_super_block
,
4441 sb
->s_fs_info
= sbi
;
4442 sbi
->raw_super
= raw_super
;
4444 INIT_WORK(&sbi
->s_error_work
, f2fs_record_error_work
);
4445 memcpy(sbi
->errors
, raw_super
->s_errors
, MAX_F2FS_ERRORS
);
4446 memcpy(sbi
->stop_reason
, raw_super
->s_stop_reason
, MAX_STOP_REASON
);
4448 /* precompute checksum seed for metadata */
4449 if (f2fs_sb_has_inode_chksum(sbi
))
4450 sbi
->s_chksum_seed
= f2fs_chksum(sbi
, ~0, raw_super
->uuid
,
4451 sizeof(raw_super
->uuid
));
4453 default_options(sbi
, false);
4454 /* parse mount options */
4455 options
= kstrdup((const char *)data
, GFP_KERNEL
);
4456 if (data
&& !options
) {
4461 err
= parse_options(sb
, options
, false);
4465 sb
->s_maxbytes
= max_file_blocks(NULL
) <<
4466 le32_to_cpu(raw_super
->log_blocksize
);
4467 sb
->s_max_links
= F2FS_LINK_MAX
;
4469 err
= f2fs_setup_casefold(sbi
);
4474 sb
->dq_op
= &f2fs_quota_operations
;
4475 sb
->s_qcop
= &f2fs_quotactl_ops
;
4476 sb
->s_quota_types
= QTYPE_MASK_USR
| QTYPE_MASK_GRP
| QTYPE_MASK_PRJ
;
4478 if (f2fs_sb_has_quota_ino(sbi
)) {
4479 for (i
= 0; i
< MAXQUOTAS
; i
++) {
4480 if (f2fs_qf_ino(sbi
->sb
, i
))
4481 sbi
->nquota_files
++;
4486 sb
->s_op
= &f2fs_sops
;
4487 #ifdef CONFIG_FS_ENCRYPTION
4488 sb
->s_cop
= &f2fs_cryptops
;
4490 #ifdef CONFIG_FS_VERITY
4491 sb
->s_vop
= &f2fs_verityops
;
4493 sb
->s_xattr
= f2fs_xattr_handlers
;
4494 sb
->s_export_op
= &f2fs_export_ops
;
4495 sb
->s_magic
= F2FS_SUPER_MAGIC
;
4496 sb
->s_time_gran
= 1;
4497 sb
->s_flags
= (sb
->s_flags
& ~SB_POSIXACL
) |
4498 (test_opt(sbi
, POSIX_ACL
) ? SB_POSIXACL
: 0);
4499 super_set_uuid(sb
, (void *) raw_super
->uuid
, sizeof(raw_super
->uuid
));
4500 sb
->s_iflags
|= SB_I_CGROUPWB
;
4502 /* init f2fs-specific super block info */
4503 sbi
->valid_super_block
= valid_super_block
;
4505 /* disallow all the data/node/meta page writes */
4506 set_sbi_flag(sbi
, SBI_POR_DOING
);
4508 err
= f2fs_init_write_merge_io(sbi
);
4514 err
= f2fs_init_iostat(sbi
);
4518 err
= init_percpu_info(sbi
);
4522 if (F2FS_IO_ALIGNED(sbi
)) {
4523 sbi
->write_io_dummy
=
4524 mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi
) - 1), 0);
4525 if (!sbi
->write_io_dummy
) {
4531 /* init per sbi slab cache */
4532 err
= f2fs_init_xattr_caches(sbi
);
4535 err
= f2fs_init_page_array_cache(sbi
);
4537 goto free_xattr_cache
;
4539 /* get an inode for meta space */
4540 sbi
->meta_inode
= f2fs_iget(sb
, F2FS_META_INO(sbi
));
4541 if (IS_ERR(sbi
->meta_inode
)) {
4542 f2fs_err(sbi
, "Failed to read F2FS meta data inode");
4543 err
= PTR_ERR(sbi
->meta_inode
);
4544 goto free_page_array_cache
;
4547 err
= f2fs_get_valid_checkpoint(sbi
);
4549 f2fs_err(sbi
, "Failed to get valid F2FS checkpoint");
4550 goto free_meta_inode
;
4553 if (__is_set_ckpt_flags(F2FS_CKPT(sbi
), CP_QUOTA_NEED_FSCK_FLAG
))
4554 set_sbi_flag(sbi
, SBI_QUOTA_NEED_REPAIR
);
4555 if (__is_set_ckpt_flags(F2FS_CKPT(sbi
), CP_DISABLED_QUICK_FLAG
)) {
4556 set_sbi_flag(sbi
, SBI_CP_DISABLED_QUICK
);
4557 sbi
->interval_time
[DISABLE_TIME
] = DEF_DISABLE_QUICK_INTERVAL
;
4560 if (__is_set_ckpt_flags(F2FS_CKPT(sbi
), CP_FSCK_FLAG
))
4561 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
4563 /* Initialize device list */
4564 err
= f2fs_scan_devices(sbi
);
4566 f2fs_err(sbi
, "Failed to find devices");
4570 err
= f2fs_init_post_read_wq(sbi
);
4572 f2fs_err(sbi
, "Failed to initialize post read workqueue");
4576 sbi
->total_valid_node_count
=
4577 le32_to_cpu(sbi
->ckpt
->valid_node_count
);
4578 percpu_counter_set(&sbi
->total_valid_inode_count
,
4579 le32_to_cpu(sbi
->ckpt
->valid_inode_count
));
4580 sbi
->user_block_count
= le64_to_cpu(sbi
->ckpt
->user_block_count
);
4581 sbi
->total_valid_block_count
=
4582 le64_to_cpu(sbi
->ckpt
->valid_block_count
);
4583 sbi
->last_valid_block_count
= sbi
->total_valid_block_count
;
4584 sbi
->reserved_blocks
= 0;
4585 sbi
->current_reserved_blocks
= 0;
4586 limit_reserve_root(sbi
);
4587 adjust_unusable_cap_perc(sbi
);
4589 f2fs_init_extent_cache_info(sbi
);
4591 f2fs_init_ino_entry_info(sbi
);
4593 f2fs_init_fsync_node_info(sbi
);
4595 /* setup checkpoint request control and start checkpoint issue thread */
4596 f2fs_init_ckpt_req_control(sbi
);
4597 if (!f2fs_readonly(sb
) && !test_opt(sbi
, DISABLE_CHECKPOINT
) &&
4598 test_opt(sbi
, MERGE_CHECKPOINT
)) {
4599 err
= f2fs_start_ckpt_thread(sbi
);
4602 "Failed to start F2FS issue_checkpoint_thread (%d)",
4604 goto stop_ckpt_thread
;
4608 /* setup f2fs internal modules */
4609 err
= f2fs_build_segment_manager(sbi
);
4611 f2fs_err(sbi
, "Failed to initialize F2FS segment manager (%d)",
4615 err
= f2fs_build_node_manager(sbi
);
4617 f2fs_err(sbi
, "Failed to initialize F2FS node manager (%d)",
4622 err
= adjust_reserved_segment(sbi
);
4626 /* For write statistics */
4627 sbi
->sectors_written_start
= f2fs_get_sectors_written(sbi
);
4629 /* Read accumulated write IO statistics if exists */
4630 seg_i
= CURSEG_I(sbi
, CURSEG_HOT_NODE
);
4631 if (__exist_node_summaries(sbi
))
4632 sbi
->kbytes_written
=
4633 le64_to_cpu(seg_i
->journal
->info
.kbytes_written
);
4635 f2fs_build_gc_manager(sbi
);
4637 err
= f2fs_build_stats(sbi
);
4641 /* get an inode for node space */
4642 sbi
->node_inode
= f2fs_iget(sb
, F2FS_NODE_INO(sbi
));
4643 if (IS_ERR(sbi
->node_inode
)) {
4644 f2fs_err(sbi
, "Failed to read node inode");
4645 err
= PTR_ERR(sbi
->node_inode
);
4649 /* read root inode and dentry */
4650 root
= f2fs_iget(sb
, F2FS_ROOT_INO(sbi
));
4652 f2fs_err(sbi
, "Failed to read root inode");
4653 err
= PTR_ERR(root
);
4654 goto free_node_inode
;
4656 if (!S_ISDIR(root
->i_mode
) || !root
->i_blocks
||
4657 !root
->i_size
|| !root
->i_nlink
) {
4660 goto free_node_inode
;
4663 generic_set_sb_d_ops(sb
);
4664 sb
->s_root
= d_make_root(root
); /* allocate root dentry */
4667 goto free_node_inode
;
4670 err
= f2fs_init_compress_inode(sbi
);
4672 goto free_root_inode
;
4674 err
= f2fs_register_sysfs(sbi
);
4676 goto free_compress_inode
;
4679 /* Enable quota usage during mount */
4680 if (f2fs_sb_has_quota_ino(sbi
) && !f2fs_readonly(sb
)) {
4681 err
= f2fs_enable_quotas(sb
);
4683 f2fs_err(sbi
, "Cannot turn on quotas: error %d", err
);
4686 quota_enabled
= f2fs_recover_quota_begin(sbi
);
4688 /* if there are any orphan inodes, free them */
4689 err
= f2fs_recover_orphan_inodes(sbi
);
4693 if (unlikely(is_set_ckpt_flags(sbi
, CP_DISABLED_FLAG
)))
4694 goto reset_checkpoint
;
4696 /* recover fsynced data */
4697 if (!test_opt(sbi
, DISABLE_ROLL_FORWARD
) &&
4698 !test_opt(sbi
, NORECOVERY
)) {
4700 * mount should be failed, when device has readonly mode, and
4701 * previous checkpoint was not done by clean system shutdown.
4703 if (f2fs_hw_is_readonly(sbi
)) {
4704 if (!is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
)) {
4705 err
= f2fs_recover_fsync_data(sbi
, true);
4708 f2fs_err(sbi
, "Need to recover fsync data, but "
4709 "write access unavailable, please try "
4710 "mount w/ disable_roll_forward or norecovery");
4715 f2fs_info(sbi
, "write access unavailable, skipping recovery");
4716 goto reset_checkpoint
;
4720 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
4723 goto reset_checkpoint
;
4725 err
= f2fs_recover_fsync_data(sbi
, false);
4728 skip_recovery
= true;
4730 f2fs_err(sbi
, "Cannot recover all fsync data errno=%d",
4735 err
= f2fs_recover_fsync_data(sbi
, true);
4737 if (!f2fs_readonly(sb
) && err
> 0) {
4739 f2fs_err(sbi
, "Need to recover fsync data");
4745 f2fs_recover_quota_end(sbi
, quota_enabled
);
4749 * If the f2fs is not readonly and fsync data recovery succeeds,
4750 * check zoned block devices' write pointer consistency.
4752 if (!err
&& !f2fs_readonly(sb
) && f2fs_sb_has_blkzoned(sbi
)) {
4753 err
= f2fs_check_write_pointer(sbi
);
4758 f2fs_init_inmem_curseg(sbi
);
4760 /* f2fs_recover_fsync_data() cleared this already */
4761 clear_sbi_flag(sbi
, SBI_POR_DOING
);
4763 if (test_opt(sbi
, DISABLE_CHECKPOINT
)) {
4764 err
= f2fs_disable_checkpoint(sbi
);
4766 goto sync_free_meta
;
4767 } else if (is_set_ckpt_flags(sbi
, CP_DISABLED_FLAG
)) {
4768 f2fs_enable_checkpoint(sbi
);
4772 * If filesystem is not mounted as read-only then
4773 * do start the gc_thread.
4775 if ((F2FS_OPTION(sbi
).bggc_mode
!= BGGC_MODE_OFF
||
4776 test_opt(sbi
, GC_MERGE
)) && !f2fs_readonly(sb
)) {
4777 /* After POR, we can run background GC thread.*/
4778 err
= f2fs_start_gc_thread(sbi
);
4780 goto sync_free_meta
;
4784 /* recover broken superblock */
4786 err
= f2fs_commit_super(sbi
, true);
4787 f2fs_info(sbi
, "Try to recover %dth superblock, ret: %d",
4788 sbi
->valid_super_block
? 1 : 2, err
);
4791 f2fs_join_shrinker(sbi
);
4793 f2fs_tuning_parameters(sbi
);
4795 f2fs_notice(sbi
, "Mounted with checkpoint version = %llx",
4796 cur_cp_version(F2FS_CKPT(sbi
)));
4797 f2fs_update_time(sbi
, CP_TIME
);
4798 f2fs_update_time(sbi
, REQ_TIME
);
4799 clear_sbi_flag(sbi
, SBI_CP_DISABLED_QUICK
);
4803 /* safe to flush all the data */
4804 sync_filesystem(sbi
->sb
);
4809 f2fs_truncate_quota_inode_pages(sb
);
4810 if (f2fs_sb_has_quota_ino(sbi
) && !f2fs_readonly(sb
))
4811 f2fs_quota_off_umount(sbi
->sb
);
4814 * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
4815 * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
4816 * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
4817 * falls into an infinite loop in f2fs_sync_meta_pages().
4819 truncate_inode_pages_final(META_MAPPING(sbi
));
4820 /* evict some inodes being cached by GC */
4822 f2fs_unregister_sysfs(sbi
);
4823 free_compress_inode
:
4824 f2fs_destroy_compress_inode(sbi
);
4829 f2fs_release_ino_entry(sbi
, true);
4830 truncate_inode_pages_final(NODE_MAPPING(sbi
));
4831 iput(sbi
->node_inode
);
4832 sbi
->node_inode
= NULL
;
4834 f2fs_destroy_stats(sbi
);
4836 /* stop discard thread before destroying node manager */
4837 f2fs_stop_discard_thread(sbi
);
4838 f2fs_destroy_node_manager(sbi
);
4840 f2fs_destroy_segment_manager(sbi
);
4842 f2fs_stop_ckpt_thread(sbi
);
4843 /* flush s_error_work before sbi destroy */
4844 flush_work(&sbi
->s_error_work
);
4845 f2fs_destroy_post_read_wq(sbi
);
4847 destroy_device_list(sbi
);
4850 make_bad_inode(sbi
->meta_inode
);
4851 iput(sbi
->meta_inode
);
4852 sbi
->meta_inode
= NULL
;
4853 free_page_array_cache
:
4854 f2fs_destroy_page_array_cache(sbi
);
4856 f2fs_destroy_xattr_caches(sbi
);
4858 mempool_destroy(sbi
->write_io_dummy
);
4860 destroy_percpu_info(sbi
);
4862 f2fs_destroy_iostat(sbi
);
4864 for (i
= 0; i
< NR_PAGE_TYPE
; i
++)
4865 kvfree(sbi
->write_io
[i
]);
4867 #if IS_ENABLED(CONFIG_UNICODE)
4868 utf8_unload(sb
->s_encoding
);
4869 sb
->s_encoding
= NULL
;
4873 for (i
= 0; i
< MAXQUOTAS
; i
++)
4874 kfree(F2FS_OPTION(sbi
).s_qf_names
[i
]);
4876 fscrypt_free_dummy_policy(&F2FS_OPTION(sbi
).dummy_enc_policy
);
4881 if (sbi
->s_chksum_driver
)
4882 crypto_free_shash(sbi
->s_chksum_driver
);
4884 sb
->s_fs_info
= NULL
;
4886 /* give only one another chance */
4887 if (retry_cnt
> 0 && skip_recovery
) {
4889 shrink_dcache_sb(sb
);
4895 static struct dentry
*f2fs_mount(struct file_system_type
*fs_type
, int flags
,
4896 const char *dev_name
, void *data
)
4898 return mount_bdev(fs_type
, flags
, dev_name
, data
, f2fs_fill_super
);
4901 static void kill_f2fs_super(struct super_block
*sb
)
4903 struct f2fs_sb_info
*sbi
= F2FS_SB(sb
);
4906 set_sbi_flag(sbi
, SBI_IS_CLOSE
);
4907 f2fs_stop_gc_thread(sbi
);
4908 f2fs_stop_discard_thread(sbi
);
4910 #ifdef CONFIG_F2FS_FS_COMPRESSION
4912 * latter evict_inode() can bypass checking and invalidating
4913 * compress inode cache.
4915 if (test_opt(sbi
, COMPRESS_CACHE
))
4916 truncate_inode_pages_final(COMPRESS_MAPPING(sbi
));
4919 if (is_sbi_flag_set(sbi
, SBI_IS_DIRTY
) ||
4920 !is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
)) {
4921 struct cp_control cpc
= {
4922 .reason
= CP_UMOUNT
,
4924 stat_inc_cp_call_count(sbi
, TOTAL_CALL
);
4925 f2fs_write_checkpoint(sbi
, &cpc
);
4928 if (is_sbi_flag_set(sbi
, SBI_IS_RECOVERED
) && f2fs_readonly(sb
))
4929 sb
->s_flags
&= ~SB_RDONLY
;
4931 kill_block_super(sb
);
4932 /* Release block devices last, after fscrypt_destroy_keyring(). */
4934 destroy_device_list(sbi
);
4936 sb
->s_fs_info
= NULL
;
4940 static struct file_system_type f2fs_fs_type
= {
4941 .owner
= THIS_MODULE
,
4943 .mount
= f2fs_mount
,
4944 .kill_sb
= kill_f2fs_super
,
4945 .fs_flags
= FS_REQUIRES_DEV
| FS_ALLOW_IDMAP
,
4947 MODULE_ALIAS_FS("f2fs");
4949 static int __init
init_inodecache(void)
4951 f2fs_inode_cachep
= kmem_cache_create("f2fs_inode_cache",
4952 sizeof(struct f2fs_inode_info
), 0,
4953 SLAB_RECLAIM_ACCOUNT
|SLAB_ACCOUNT
, NULL
);
4954 return f2fs_inode_cachep
? 0 : -ENOMEM
;
4957 static void destroy_inodecache(void)
4960 * Make sure all delayed rcu free inodes are flushed before we
4964 kmem_cache_destroy(f2fs_inode_cachep
);
4967 static int __init
init_f2fs_fs(void)
4971 if (PAGE_SIZE
!= F2FS_BLKSIZE
) {
4972 printk("F2FS not supported on PAGE_SIZE(%lu) != BLOCK_SIZE(%lu)\n",
4973 PAGE_SIZE
, F2FS_BLKSIZE
);
4977 err
= init_inodecache();
4980 err
= f2fs_create_node_manager_caches();
4982 goto free_inodecache
;
4983 err
= f2fs_create_segment_manager_caches();
4985 goto free_node_manager_caches
;
4986 err
= f2fs_create_checkpoint_caches();
4988 goto free_segment_manager_caches
;
4989 err
= f2fs_create_recovery_cache();
4991 goto free_checkpoint_caches
;
4992 err
= f2fs_create_extent_cache();
4994 goto free_recovery_cache
;
4995 err
= f2fs_create_garbage_collection_cache();
4997 goto free_extent_cache
;
4998 err
= f2fs_init_sysfs();
5000 goto free_garbage_collection_cache
;
5001 err
= f2fs_init_shrinker();
5004 err
= register_filesystem(&f2fs_fs_type
);
5007 f2fs_create_root_stats();
5008 err
= f2fs_init_post_read_processing();
5010 goto free_root_stats
;
5011 err
= f2fs_init_iostat_processing();
5013 goto free_post_read
;
5014 err
= f2fs_init_bio_entry_cache();
5017 err
= f2fs_init_bioset();
5019 goto free_bio_entry_cache
;
5020 err
= f2fs_init_compress_mempool();
5023 err
= f2fs_init_compress_cache();
5025 goto free_compress_mempool
;
5026 err
= f2fs_create_casefold_cache();
5028 goto free_compress_cache
;
5030 free_compress_cache
:
5031 f2fs_destroy_compress_cache();
5032 free_compress_mempool
:
5033 f2fs_destroy_compress_mempool();
5035 f2fs_destroy_bioset();
5036 free_bio_entry_cache
:
5037 f2fs_destroy_bio_entry_cache();
5039 f2fs_destroy_iostat_processing();
5041 f2fs_destroy_post_read_processing();
5043 f2fs_destroy_root_stats();
5044 unregister_filesystem(&f2fs_fs_type
);
5046 f2fs_exit_shrinker();
5049 free_garbage_collection_cache
:
5050 f2fs_destroy_garbage_collection_cache();
5052 f2fs_destroy_extent_cache();
5053 free_recovery_cache
:
5054 f2fs_destroy_recovery_cache();
5055 free_checkpoint_caches
:
5056 f2fs_destroy_checkpoint_caches();
5057 free_segment_manager_caches
:
5058 f2fs_destroy_segment_manager_caches();
5059 free_node_manager_caches
:
5060 f2fs_destroy_node_manager_caches();
5062 destroy_inodecache();
5067 static void __exit
exit_f2fs_fs(void)
5069 f2fs_destroy_casefold_cache();
5070 f2fs_destroy_compress_cache();
5071 f2fs_destroy_compress_mempool();
5072 f2fs_destroy_bioset();
5073 f2fs_destroy_bio_entry_cache();
5074 f2fs_destroy_iostat_processing();
5075 f2fs_destroy_post_read_processing();
5076 f2fs_destroy_root_stats();
5077 unregister_filesystem(&f2fs_fs_type
);
5078 f2fs_exit_shrinker();
5080 f2fs_destroy_garbage_collection_cache();
5081 f2fs_destroy_extent_cache();
5082 f2fs_destroy_recovery_cache();
5083 f2fs_destroy_checkpoint_caches();
5084 f2fs_destroy_segment_manager_caches();
5085 f2fs_destroy_node_manager_caches();
5086 destroy_inodecache();
5089 module_init(init_f2fs_fs
)
5090 module_exit(exit_f2fs_fs
)
5092 MODULE_AUTHOR("Samsung Electronics's Praesto Team");
5093 MODULE_DESCRIPTION("Flash Friendly File System");
5094 MODULE_LICENSE("GPL");
5095 MODULE_SOFTDEP("pre: crc32");