1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * fs/f2fs/f2fs.h 4 * 5 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 6 * http://www.samsung.com/ 7 */ 8 #ifndef _LINUX_F2FS_H 9 #define _LINUX_F2FS_H 10 11 #include <linux/uio.h> 12 #include <linux/types.h> 13 #include <linux/page-flags.h> 14 #include <linux/buffer_head.h> 15 #include <linux/slab.h> 16 #include <linux/crc32.h> 17 #include <linux/magic.h> 18 #include <linux/kobject.h> 19 #include <linux/sched.h> 20 #include <linux/cred.h> 21 #include <linux/vmalloc.h> 22 #include <linux/bio.h> 23 #include <linux/blkdev.h> 24 #include <linux/quotaops.h> 25 #include <linux/part_stat.h> 26 #include <crypto/hash.h> 27 28 #include <linux/fscrypt.h> 29 #include <linux/fsverity.h> 30 31 #ifdef CONFIG_F2FS_CHECK_FS 32 #define f2fs_bug_on(sbi, condition) BUG_ON(condition) 33 #else 34 #define f2fs_bug_on(sbi, condition) \ 35 do { \ 36 if (WARN_ON(condition)) \ 37 set_sbi_flag(sbi, SBI_NEED_FSCK); \ 38 } while (0) 39 #endif 40 41 enum { 42 FAULT_KMALLOC, 43 FAULT_KVMALLOC, 44 FAULT_PAGE_ALLOC, 45 FAULT_PAGE_GET, 46 FAULT_ALLOC_NID, 47 FAULT_ORPHAN, 48 FAULT_BLOCK, 49 FAULT_DIR_DEPTH, 50 FAULT_EVICT_INODE, 51 FAULT_TRUNCATE, 52 FAULT_READ_IO, 53 FAULT_CHECKPOINT, 54 FAULT_DISCARD, 55 FAULT_WRITE_IO, 56 FAULT_MAX, 57 }; 58 59 #ifdef CONFIG_F2FS_FAULT_INJECTION 60 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1) 61 62 struct f2fs_fault_info { 63 atomic_t inject_ops; 64 unsigned int inject_rate; 65 unsigned int inject_type; 66 }; 67 68 extern const char *f2fs_fault_name[FAULT_MAX]; 69 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) 70 #endif 71 72 /* 73 * For mount options 74 */ 75 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 76 #define F2FS_MOUNT_DISCARD 0x00000004 77 #define F2FS_MOUNT_NOHEAP 0x00000008 78 #define F2FS_MOUNT_XATTR_USER 0x00000010 79 #define F2FS_MOUNT_POSIX_ACL 0x00000020 80 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 81 #define F2FS_MOUNT_INLINE_XATTR 0x00000080 82 #define F2FS_MOUNT_INLINE_DATA 0x00000100 83 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 84 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 85 #define F2FS_MOUNT_NOBARRIER 0x00000800 86 #define F2FS_MOUNT_FASTBOOT 0x00001000 87 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 88 #define F2FS_MOUNT_DATA_FLUSH 0x00008000 89 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 90 #define F2FS_MOUNT_USRQUOTA 0x00080000 91 #define F2FS_MOUNT_GRPQUOTA 0x00100000 92 #define F2FS_MOUNT_PRJQUOTA 0x00200000 93 #define F2FS_MOUNT_QUOTA 0x00400000 94 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000 95 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000 96 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000 97 #define F2FS_MOUNT_NORECOVERY 0x04000000 98 #define F2FS_MOUNT_ATGC 0x08000000 99 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000 100 101 #define F2FS_OPTION(sbi) ((sbi)->mount_opt) 102 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) 103 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option) 104 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option) 105 106 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 107 typecheck(unsigned long long, b) && \ 108 ((long long)((a) - (b)) > 0)) 109 110 typedef u32 block_t; /* 111 * should not change u32, since it is the on-disk block 112 * address format, __le32. 113 */ 114 typedef u32 nid_t; 115 116 #define COMPRESS_EXT_NUM 16 117 118 struct f2fs_mount_info { 119 unsigned int opt; 120 int write_io_size_bits; /* Write IO size bits */ 121 block_t root_reserved_blocks; /* root reserved blocks */ 122 kuid_t s_resuid; /* reserved blocks for uid */ 123 kgid_t s_resgid; /* reserved blocks for gid */ 124 int active_logs; /* # of active logs */ 125 int inline_xattr_size; /* inline xattr size */ 126 #ifdef CONFIG_F2FS_FAULT_INJECTION 127 struct f2fs_fault_info fault_info; /* For fault injection */ 128 #endif 129 #ifdef CONFIG_QUOTA 130 /* Names of quota files with journalled quota */ 131 char *s_qf_names[MAXQUOTAS]; 132 int s_jquota_fmt; /* Format of quota to use */ 133 #endif 134 /* For which write hints are passed down to block layer */ 135 int whint_mode; 136 int alloc_mode; /* segment allocation policy */ 137 int fsync_mode; /* fsync policy */ 138 int fs_mode; /* fs mode: LFS or ADAPTIVE */ 139 int bggc_mode; /* bggc mode: off, on or sync */ 140 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */ 141 block_t unusable_cap_perc; /* percentage for cap */ 142 block_t unusable_cap; /* Amount of space allowed to be 143 * unusable when disabling checkpoint 144 */ 145 146 /* For compression */ 147 unsigned char compress_algorithm; /* algorithm type */ 148 unsigned char compress_log_size; /* cluster log size */ 149 unsigned char compress_level; /* compress level */ 150 bool compress_chksum; /* compressed data chksum */ 151 unsigned char compress_ext_cnt; /* extension count */ 152 int compress_mode; /* compression mode */ 153 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */ 154 }; 155 156 #define F2FS_FEATURE_ENCRYPT 0x0001 157 #define F2FS_FEATURE_BLKZONED 0x0002 158 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004 159 #define F2FS_FEATURE_EXTRA_ATTR 0x0008 160 #define F2FS_FEATURE_PRJQUOTA 0x0010 161 #define F2FS_FEATURE_INODE_CHKSUM 0x0020 162 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 163 #define F2FS_FEATURE_QUOTA_INO 0x0080 164 #define F2FS_FEATURE_INODE_CRTIME 0x0100 165 #define F2FS_FEATURE_LOST_FOUND 0x0200 166 #define F2FS_FEATURE_VERITY 0x0400 167 #define F2FS_FEATURE_SB_CHKSUM 0x0800 168 #define F2FS_FEATURE_CASEFOLD 0x1000 169 #define F2FS_FEATURE_COMPRESSION 0x2000 170 171 #define __F2FS_HAS_FEATURE(raw_super, mask) \ 172 ((raw_super->feature & cpu_to_le32(mask)) != 0) 173 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask) 174 #define F2FS_SET_FEATURE(sbi, mask) \ 175 (sbi->raw_super->feature |= cpu_to_le32(mask)) 176 #define F2FS_CLEAR_FEATURE(sbi, mask) \ 177 (sbi->raw_super->feature &= ~cpu_to_le32(mask)) 178 179 /* 180 * Default values for user and/or group using reserved blocks 181 */ 182 #define F2FS_DEF_RESUID 0 183 #define F2FS_DEF_RESGID 0 184 185 /* 186 * For checkpoint manager 187 */ 188 enum { 189 NAT_BITMAP, 190 SIT_BITMAP 191 }; 192 193 #define CP_UMOUNT 0x00000001 194 #define CP_FASTBOOT 0x00000002 195 #define CP_SYNC 0x00000004 196 #define CP_RECOVERY 0x00000008 197 #define CP_DISCARD 0x00000010 198 #define CP_TRIMMED 0x00000020 199 #define CP_PAUSE 0x00000040 200 #define CP_RESIZE 0x00000080 201 202 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) 203 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */ 204 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */ 205 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */ 206 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */ 207 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */ 208 #define DEF_CP_INTERVAL 60 /* 60 secs */ 209 #define DEF_IDLE_INTERVAL 5 /* 5 secs */ 210 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */ 211 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */ 212 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ 213 214 struct cp_control { 215 int reason; 216 __u64 trim_start; 217 __u64 trim_end; 218 __u64 trim_minlen; 219 }; 220 221 /* 222 * indicate meta/data type 223 */ 224 enum { 225 META_CP, 226 META_NAT, 227 META_SIT, 228 META_SSA, 229 META_MAX, 230 META_POR, 231 DATA_GENERIC, /* check range only */ 232 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */ 233 DATA_GENERIC_ENHANCE_READ, /* 234 * strong check on range and segment 235 * bitmap but no warning due to race 236 * condition of read on truncated area 237 * by extent_cache 238 */ 239 META_GENERIC, 240 }; 241 242 /* for the list of ino */ 243 enum { 244 ORPHAN_INO, /* for orphan ino list */ 245 APPEND_INO, /* for append ino list */ 246 UPDATE_INO, /* for update ino list */ 247 TRANS_DIR_INO, /* for trasactions dir ino list */ 248 FLUSH_INO, /* for multiple device flushing */ 249 MAX_INO_ENTRY, /* max. list */ 250 }; 251 252 struct ino_entry { 253 struct list_head list; /* list head */ 254 nid_t ino; /* inode number */ 255 unsigned int dirty_device; /* dirty device bitmap */ 256 }; 257 258 /* for the list of inodes to be GCed */ 259 struct inode_entry { 260 struct list_head list; /* list head */ 261 struct inode *inode; /* vfs inode pointer */ 262 }; 263 264 struct fsync_node_entry { 265 struct list_head list; /* list head */ 266 struct page *page; /* warm node page pointer */ 267 unsigned int seq_id; /* sequence id */ 268 }; 269 270 struct ckpt_req { 271 struct completion wait; /* completion for checkpoint done */ 272 struct llist_node llnode; /* llist_node to be linked in wait queue */ 273 int ret; /* return code of checkpoint */ 274 ktime_t queue_time; /* request queued time */ 275 }; 276 277 struct ckpt_req_control { 278 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */ 279 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */ 280 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */ 281 atomic_t issued_ckpt; /* # of actually issued ckpts */ 282 atomic_t total_ckpt; /* # of total ckpts */ 283 atomic_t queued_ckpt; /* # of queued ckpts */ 284 struct llist_head issue_list; /* list for command issue */ 285 spinlock_t stat_lock; /* lock for below checkpoint time stats */ 286 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */ 287 unsigned int peak_time; /* peak wait time in msec until now */ 288 }; 289 290 /* for the bitmap indicate blocks to be discarded */ 291 struct discard_entry { 292 struct list_head list; /* list head */ 293 block_t start_blkaddr; /* start blockaddr of current segment */ 294 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ 295 }; 296 297 /* default discard granularity of inner discard thread, unit: block count */ 298 #define DEFAULT_DISCARD_GRANULARITY 16 299 300 /* max discard pend list number */ 301 #define MAX_PLIST_NUM 512 302 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ 303 (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) 304 305 enum { 306 D_PREP, /* initial */ 307 D_PARTIAL, /* partially submitted */ 308 D_SUBMIT, /* all submitted */ 309 D_DONE, /* finished */ 310 }; 311 312 struct discard_info { 313 block_t lstart; /* logical start address */ 314 block_t len; /* length */ 315 block_t start; /* actual start address in dev */ 316 }; 317 318 struct discard_cmd { 319 struct rb_node rb_node; /* rb node located in rb-tree */ 320 union { 321 struct { 322 block_t lstart; /* logical start address */ 323 block_t len; /* length */ 324 block_t start; /* actual start address in dev */ 325 }; 326 struct discard_info di; /* discard info */ 327 328 }; 329 struct list_head list; /* command list */ 330 struct completion wait; /* compleation */ 331 struct block_device *bdev; /* bdev */ 332 unsigned short ref; /* reference count */ 333 unsigned char state; /* state */ 334 unsigned char queued; /* queued discard */ 335 int error; /* bio error */ 336 spinlock_t lock; /* for state/bio_ref updating */ 337 unsigned short bio_ref; /* bio reference count */ 338 }; 339 340 enum { 341 DPOLICY_BG, 342 DPOLICY_FORCE, 343 DPOLICY_FSTRIM, 344 DPOLICY_UMOUNT, 345 MAX_DPOLICY, 346 }; 347 348 struct discard_policy { 349 int type; /* type of discard */ 350 unsigned int min_interval; /* used for candidates exist */ 351 unsigned int mid_interval; /* used for device busy */ 352 unsigned int max_interval; /* used for candidates not exist */ 353 unsigned int max_requests; /* # of discards issued per round */ 354 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ 355 bool io_aware; /* issue discard in idle time */ 356 bool sync; /* submit discard with REQ_SYNC flag */ 357 bool ordered; /* issue discard by lba order */ 358 bool timeout; /* discard timeout for put_super */ 359 unsigned int granularity; /* discard granularity */ 360 }; 361 362 struct discard_cmd_control { 363 struct task_struct *f2fs_issue_discard; /* discard thread */ 364 struct list_head entry_list; /* 4KB discard entry list */ 365 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ 366 struct list_head wait_list; /* store on-flushing entries */ 367 struct list_head fstrim_list; /* in-flight discard from fstrim */ 368 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ 369 unsigned int discard_wake; /* to wake up discard thread */ 370 struct mutex cmd_lock; 371 unsigned int nr_discards; /* # of discards in the list */ 372 unsigned int max_discards; /* max. discards to be issued */ 373 unsigned int discard_granularity; /* discard granularity */ 374 unsigned int undiscard_blks; /* # of undiscard blocks */ 375 unsigned int next_pos; /* next discard position */ 376 atomic_t issued_discard; /* # of issued discard */ 377 atomic_t queued_discard; /* # of queued discard */ 378 atomic_t discard_cmd_cnt; /* # of cached cmd count */ 379 struct rb_root_cached root; /* root of discard rb-tree */ 380 bool rbtree_check; /* config for consistence check */ 381 }; 382 383 /* for the list of fsync inodes, used only during recovery */ 384 struct fsync_inode_entry { 385 struct list_head list; /* list head */ 386 struct inode *inode; /* vfs inode pointer */ 387 block_t blkaddr; /* block address locating the last fsync */ 388 block_t last_dentry; /* block address locating the last dentry */ 389 }; 390 391 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) 392 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) 393 394 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) 395 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) 396 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) 397 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) 398 399 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) 400 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) 401 402 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) 403 { 404 int before = nats_in_cursum(journal); 405 406 journal->n_nats = cpu_to_le16(before + i); 407 return before; 408 } 409 410 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) 411 { 412 int before = sits_in_cursum(journal); 413 414 journal->n_sits = cpu_to_le16(before + i); 415 return before; 416 } 417 418 static inline bool __has_cursum_space(struct f2fs_journal *journal, 419 int size, int type) 420 { 421 if (type == NAT_JOURNAL) 422 return size <= MAX_NAT_JENTRIES(journal); 423 return size <= MAX_SIT_JENTRIES(journal); 424 } 425 426 /* for inline stuff */ 427 #define DEF_INLINE_RESERVED_SIZE 1 428 static inline int get_extra_isize(struct inode *inode); 429 static inline int get_inline_xattr_addrs(struct inode *inode); 430 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 431 (CUR_ADDRS_PER_INODE(inode) - \ 432 get_inline_xattr_addrs(inode) - \ 433 DEF_INLINE_RESERVED_SIZE)) 434 435 /* for inline dir */ 436 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 437 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 438 BITS_PER_BYTE + 1)) 439 #define INLINE_DENTRY_BITMAP_SIZE(inode) \ 440 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE) 441 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 442 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 443 NR_INLINE_DENTRY(inode) + \ 444 INLINE_DENTRY_BITMAP_SIZE(inode))) 445 446 /* 447 * For INODE and NODE manager 448 */ 449 /* for directory operations */ 450 451 struct f2fs_filename { 452 /* 453 * The filename the user specified. This is NULL for some 454 * filesystem-internal operations, e.g. converting an inline directory 455 * to a non-inline one, or roll-forward recovering an encrypted dentry. 456 */ 457 const struct qstr *usr_fname; 458 459 /* 460 * The on-disk filename. For encrypted directories, this is encrypted. 461 * This may be NULL for lookups in an encrypted dir without the key. 462 */ 463 struct fscrypt_str disk_name; 464 465 /* The dirhash of this filename */ 466 f2fs_hash_t hash; 467 468 #ifdef CONFIG_FS_ENCRYPTION 469 /* 470 * For lookups in encrypted directories: either the buffer backing 471 * disk_name, or a buffer that holds the decoded no-key name. 472 */ 473 struct fscrypt_str crypto_buf; 474 #endif 475 #ifdef CONFIG_UNICODE 476 /* 477 * For casefolded directories: the casefolded name, but it's left NULL 478 * if the original name is not valid Unicode, if the directory is both 479 * casefolded and encrypted and its encryption key is unavailable, or if 480 * the filesystem is doing an internal operation where usr_fname is also 481 * NULL. In all these cases we fall back to treating the name as an 482 * opaque byte sequence. 483 */ 484 struct fscrypt_str cf_name; 485 #endif 486 }; 487 488 struct f2fs_dentry_ptr { 489 struct inode *inode; 490 void *bitmap; 491 struct f2fs_dir_entry *dentry; 492 __u8 (*filename)[F2FS_SLOT_LEN]; 493 int max; 494 int nr_bitmap; 495 }; 496 497 static inline void make_dentry_ptr_block(struct inode *inode, 498 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 499 { 500 d->inode = inode; 501 d->max = NR_DENTRY_IN_BLOCK; 502 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 503 d->bitmap = t->dentry_bitmap; 504 d->dentry = t->dentry; 505 d->filename = t->filename; 506 } 507 508 static inline void make_dentry_ptr_inline(struct inode *inode, 509 struct f2fs_dentry_ptr *d, void *t) 510 { 511 int entry_cnt = NR_INLINE_DENTRY(inode); 512 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 513 int reserved_size = INLINE_RESERVED_SIZE(inode); 514 515 d->inode = inode; 516 d->max = entry_cnt; 517 d->nr_bitmap = bitmap_size; 518 d->bitmap = t; 519 d->dentry = t + bitmap_size + reserved_size; 520 d->filename = t + bitmap_size + reserved_size + 521 SIZE_OF_DIR_ENTRY * entry_cnt; 522 } 523 524 /* 525 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 526 * as its node offset to distinguish from index node blocks. 527 * But some bits are used to mark the node block. 528 */ 529 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 530 >> OFFSET_BIT_SHIFT) 531 enum { 532 ALLOC_NODE, /* allocate a new node page if needed */ 533 LOOKUP_NODE, /* look up a node without readahead */ 534 LOOKUP_NODE_RA, /* 535 * look up a node with readahead called 536 * by get_data_block. 537 */ 538 }; 539 540 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 541 542 /* congestion wait timeout value, default: 20ms */ 543 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20)) 544 545 /* maximum retry quota flush count */ 546 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 547 548 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 549 550 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 551 552 /* for in-memory extent cache entry */ 553 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 554 555 /* number of extent info in extent cache we try to shrink */ 556 #define EXTENT_CACHE_SHRINK_NUMBER 128 557 558 struct rb_entry { 559 struct rb_node rb_node; /* rb node located in rb-tree */ 560 union { 561 struct { 562 unsigned int ofs; /* start offset of the entry */ 563 unsigned int len; /* length of the entry */ 564 }; 565 unsigned long long key; /* 64-bits key */ 566 } __packed; 567 }; 568 569 struct extent_info { 570 unsigned int fofs; /* start offset in a file */ 571 unsigned int len; /* length of the extent */ 572 u32 blk; /* start block address of the extent */ 573 }; 574 575 struct extent_node { 576 struct rb_node rb_node; /* rb node located in rb-tree */ 577 struct extent_info ei; /* extent info */ 578 struct list_head list; /* node in global extent list of sbi */ 579 struct extent_tree *et; /* extent tree pointer */ 580 }; 581 582 struct extent_tree { 583 nid_t ino; /* inode number */ 584 struct rb_root_cached root; /* root of extent info rb-tree */ 585 struct extent_node *cached_en; /* recently accessed extent node */ 586 struct extent_info largest; /* largested extent info */ 587 struct list_head list; /* to be used by sbi->zombie_list */ 588 rwlock_t lock; /* protect extent info rb-tree */ 589 atomic_t node_cnt; /* # of extent node in rb-tree*/ 590 bool largest_updated; /* largest extent updated */ 591 }; 592 593 /* 594 * This structure is taken from ext4_map_blocks. 595 * 596 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 597 */ 598 #define F2FS_MAP_NEW (1 << BH_New) 599 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 600 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 601 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 602 F2FS_MAP_UNWRITTEN) 603 604 struct f2fs_map_blocks { 605 block_t m_pblk; 606 block_t m_lblk; 607 unsigned int m_len; 608 unsigned int m_flags; 609 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 610 pgoff_t *m_next_extent; /* point to next possible extent */ 611 int m_seg_type; 612 bool m_may_create; /* indicate it is from write path */ 613 }; 614 615 /* for flag in get_data_block */ 616 enum { 617 F2FS_GET_BLOCK_DEFAULT, 618 F2FS_GET_BLOCK_FIEMAP, 619 F2FS_GET_BLOCK_BMAP, 620 F2FS_GET_BLOCK_DIO, 621 F2FS_GET_BLOCK_PRE_DIO, 622 F2FS_GET_BLOCK_PRE_AIO, 623 F2FS_GET_BLOCK_PRECACHE, 624 }; 625 626 /* 627 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 628 */ 629 #define FADVISE_COLD_BIT 0x01 630 #define FADVISE_LOST_PINO_BIT 0x02 631 #define FADVISE_ENCRYPT_BIT 0x04 632 #define FADVISE_ENC_NAME_BIT 0x08 633 #define FADVISE_KEEP_SIZE_BIT 0x10 634 #define FADVISE_HOT_BIT 0x20 635 #define FADVISE_VERITY_BIT 0x40 636 637 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 638 639 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 640 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 641 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 642 643 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 644 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 645 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 646 647 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 648 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 649 650 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 651 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 652 653 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 654 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 655 656 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 657 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 658 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 659 660 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT) 661 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT) 662 663 #define DEF_DIR_LEVEL 0 664 665 enum { 666 GC_FAILURE_PIN, 667 GC_FAILURE_ATOMIC, 668 MAX_GC_FAILURE 669 }; 670 671 /* used for f2fs_inode_info->flags */ 672 enum { 673 FI_NEW_INODE, /* indicate newly allocated inode */ 674 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 675 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 676 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 677 FI_INC_LINK, /* need to increment i_nlink */ 678 FI_ACL_MODE, /* indicate acl mode */ 679 FI_NO_ALLOC, /* should not allocate any blocks */ 680 FI_FREE_NID, /* free allocated nide */ 681 FI_NO_EXTENT, /* not to use the extent cache */ 682 FI_INLINE_XATTR, /* used for inline xattr */ 683 FI_INLINE_DATA, /* used for inline data*/ 684 FI_INLINE_DENTRY, /* used for inline dentry */ 685 FI_APPEND_WRITE, /* inode has appended data */ 686 FI_UPDATE_WRITE, /* inode has in-place-update data */ 687 FI_NEED_IPU, /* used for ipu per file */ 688 FI_ATOMIC_FILE, /* indicate atomic file */ 689 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 690 FI_VOLATILE_FILE, /* indicate volatile file */ 691 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 692 FI_DROP_CACHE, /* drop dirty page cache */ 693 FI_DATA_EXIST, /* indicate data exists */ 694 FI_INLINE_DOTS, /* indicate inline dot dentries */ 695 FI_DO_DEFRAG, /* indicate defragment is running */ 696 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 697 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 698 FI_HOT_DATA, /* indicate file is hot */ 699 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 700 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 701 FI_PIN_FILE, /* indicate file should not be gced */ 702 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 703 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */ 704 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */ 705 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */ 706 FI_MMAP_FILE, /* indicate file was mmapped */ 707 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */ 708 FI_MAX, /* max flag, never be used */ 709 }; 710 711 struct f2fs_inode_info { 712 struct inode vfs_inode; /* serve a vfs inode */ 713 unsigned long i_flags; /* keep an inode flags for ioctl */ 714 unsigned char i_advise; /* use to give file attribute hints */ 715 unsigned char i_dir_level; /* use for dentry level for large dir */ 716 unsigned int i_current_depth; /* only for directory depth */ 717 /* for gc failure statistic */ 718 unsigned int i_gc_failures[MAX_GC_FAILURE]; 719 unsigned int i_pino; /* parent inode number */ 720 umode_t i_acl_mode; /* keep file acl mode temporarily */ 721 722 /* Use below internally in f2fs*/ 723 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */ 724 struct rw_semaphore i_sem; /* protect fi info */ 725 atomic_t dirty_pages; /* # of dirty pages */ 726 f2fs_hash_t chash; /* hash value of given file name */ 727 unsigned int clevel; /* maximum level of given file name */ 728 struct task_struct *task; /* lookup and create consistency */ 729 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 730 nid_t i_xattr_nid; /* node id that contains xattrs */ 731 loff_t last_disk_size; /* lastly written file size */ 732 spinlock_t i_size_lock; /* protect last_disk_size */ 733 734 #ifdef CONFIG_QUOTA 735 struct dquot *i_dquot[MAXQUOTAS]; 736 737 /* quota space reservation, managed internally by quota code */ 738 qsize_t i_reserved_quota; 739 #endif 740 struct list_head dirty_list; /* dirty list for dirs and files */ 741 struct list_head gdirty_list; /* linked in global dirty list */ 742 struct list_head inmem_ilist; /* list for inmem inodes */ 743 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 744 struct task_struct *inmem_task; /* store inmemory task */ 745 struct mutex inmem_lock; /* lock for inmemory pages */ 746 struct extent_tree *extent_tree; /* cached extent_tree entry */ 747 748 /* avoid racing between foreground op and gc */ 749 struct rw_semaphore i_gc_rwsem[2]; 750 struct rw_semaphore i_mmap_sem; 751 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 752 753 int i_extra_isize; /* size of extra space located in i_addr */ 754 kprojid_t i_projid; /* id for project quota */ 755 int i_inline_xattr_size; /* inline xattr size */ 756 struct timespec64 i_crtime; /* inode creation time */ 757 struct timespec64 i_disk_time[4];/* inode disk times */ 758 759 /* for file compress */ 760 atomic_t i_compr_blocks; /* # of compressed blocks */ 761 unsigned char i_compress_algorithm; /* algorithm type */ 762 unsigned char i_log_cluster_size; /* log of cluster size */ 763 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */ 764 unsigned short i_compress_flag; /* compress flag */ 765 unsigned int i_cluster_size; /* cluster size */ 766 }; 767 768 static inline void get_extent_info(struct extent_info *ext, 769 struct f2fs_extent *i_ext) 770 { 771 ext->fofs = le32_to_cpu(i_ext->fofs); 772 ext->blk = le32_to_cpu(i_ext->blk); 773 ext->len = le32_to_cpu(i_ext->len); 774 } 775 776 static inline void set_raw_extent(struct extent_info *ext, 777 struct f2fs_extent *i_ext) 778 { 779 i_ext->fofs = cpu_to_le32(ext->fofs); 780 i_ext->blk = cpu_to_le32(ext->blk); 781 i_ext->len = cpu_to_le32(ext->len); 782 } 783 784 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 785 u32 blk, unsigned int len) 786 { 787 ei->fofs = fofs; 788 ei->blk = blk; 789 ei->len = len; 790 } 791 792 static inline bool __is_discard_mergeable(struct discard_info *back, 793 struct discard_info *front, unsigned int max_len) 794 { 795 return (back->lstart + back->len == front->lstart) && 796 (back->len + front->len <= max_len); 797 } 798 799 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 800 struct discard_info *back, unsigned int max_len) 801 { 802 return __is_discard_mergeable(back, cur, max_len); 803 } 804 805 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 806 struct discard_info *front, unsigned int max_len) 807 { 808 return __is_discard_mergeable(cur, front, max_len); 809 } 810 811 static inline bool __is_extent_mergeable(struct extent_info *back, 812 struct extent_info *front) 813 { 814 return (back->fofs + back->len == front->fofs && 815 back->blk + back->len == front->blk); 816 } 817 818 static inline bool __is_back_mergeable(struct extent_info *cur, 819 struct extent_info *back) 820 { 821 return __is_extent_mergeable(back, cur); 822 } 823 824 static inline bool __is_front_mergeable(struct extent_info *cur, 825 struct extent_info *front) 826 { 827 return __is_extent_mergeable(cur, front); 828 } 829 830 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 831 static inline void __try_update_largest_extent(struct extent_tree *et, 832 struct extent_node *en) 833 { 834 if (en->ei.len > et->largest.len) { 835 et->largest = en->ei; 836 et->largest_updated = true; 837 } 838 } 839 840 /* 841 * For free nid management 842 */ 843 enum nid_state { 844 FREE_NID, /* newly added to free nid list */ 845 PREALLOC_NID, /* it is preallocated */ 846 MAX_NID_STATE, 847 }; 848 849 enum nat_state { 850 TOTAL_NAT, 851 DIRTY_NAT, 852 RECLAIMABLE_NAT, 853 MAX_NAT_STATE, 854 }; 855 856 struct f2fs_nm_info { 857 block_t nat_blkaddr; /* base disk address of NAT */ 858 nid_t max_nid; /* maximum possible node ids */ 859 nid_t available_nids; /* # of available node ids */ 860 nid_t next_scan_nid; /* the next nid to be scanned */ 861 unsigned int ram_thresh; /* control the memory footprint */ 862 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 863 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 864 865 /* NAT cache management */ 866 struct radix_tree_root nat_root;/* root of the nat entry cache */ 867 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 868 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ 869 struct list_head nat_entries; /* cached nat entry list (clean) */ 870 spinlock_t nat_list_lock; /* protect clean nat entry list */ 871 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */ 872 unsigned int nat_blocks; /* # of nat blocks */ 873 874 /* free node ids management */ 875 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 876 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 877 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 878 spinlock_t nid_list_lock; /* protect nid lists ops */ 879 struct mutex build_lock; /* lock for build free nids */ 880 unsigned char **free_nid_bitmap; 881 unsigned char *nat_block_bitmap; 882 unsigned short *free_nid_count; /* free nid count of NAT block */ 883 884 /* for checkpoint */ 885 char *nat_bitmap; /* NAT bitmap pointer */ 886 887 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 888 unsigned char *nat_bits; /* NAT bits blocks */ 889 unsigned char *full_nat_bits; /* full NAT pages */ 890 unsigned char *empty_nat_bits; /* empty NAT pages */ 891 #ifdef CONFIG_F2FS_CHECK_FS 892 char *nat_bitmap_mir; /* NAT bitmap mirror */ 893 #endif 894 int bitmap_size; /* bitmap size */ 895 }; 896 897 /* 898 * this structure is used as one of function parameters. 899 * all the information are dedicated to a given direct node block determined 900 * by the data offset in a file. 901 */ 902 struct dnode_of_data { 903 struct inode *inode; /* vfs inode pointer */ 904 struct page *inode_page; /* its inode page, NULL is possible */ 905 struct page *node_page; /* cached direct node page */ 906 nid_t nid; /* node id of the direct node block */ 907 unsigned int ofs_in_node; /* data offset in the node page */ 908 bool inode_page_locked; /* inode page is locked or not */ 909 bool node_changed; /* is node block changed */ 910 char cur_level; /* level of hole node page */ 911 char max_level; /* level of current page located */ 912 block_t data_blkaddr; /* block address of the node block */ 913 }; 914 915 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 916 struct page *ipage, struct page *npage, nid_t nid) 917 { 918 memset(dn, 0, sizeof(*dn)); 919 dn->inode = inode; 920 dn->inode_page = ipage; 921 dn->node_page = npage; 922 dn->nid = nid; 923 } 924 925 /* 926 * For SIT manager 927 * 928 * By default, there are 6 active log areas across the whole main area. 929 * When considering hot and cold data separation to reduce cleaning overhead, 930 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 931 * respectively. 932 * In the current design, you should not change the numbers intentionally. 933 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 934 * logs individually according to the underlying devices. (default: 6) 935 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 936 * data and 8 for node logs. 937 */ 938 #define NR_CURSEG_DATA_TYPE (3) 939 #define NR_CURSEG_NODE_TYPE (3) 940 #define NR_CURSEG_INMEM_TYPE (2) 941 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 942 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE) 943 944 enum { 945 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 946 CURSEG_WARM_DATA, /* data blocks */ 947 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 948 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 949 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 950 CURSEG_COLD_NODE, /* indirect node blocks */ 951 NR_PERSISTENT_LOG, /* number of persistent log */ 952 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG, 953 /* pinned file that needs consecutive block address */ 954 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */ 955 NO_CHECK_TYPE, /* number of persistent & inmem log */ 956 }; 957 958 struct flush_cmd { 959 struct completion wait; 960 struct llist_node llnode; 961 nid_t ino; 962 int ret; 963 }; 964 965 struct flush_cmd_control { 966 struct task_struct *f2fs_issue_flush; /* flush thread */ 967 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 968 atomic_t issued_flush; /* # of issued flushes */ 969 atomic_t queued_flush; /* # of queued flushes */ 970 struct llist_head issue_list; /* list for command issue */ 971 struct llist_node *dispatch_list; /* list for command dispatch */ 972 }; 973 974 struct f2fs_sm_info { 975 struct sit_info *sit_info; /* whole segment information */ 976 struct free_segmap_info *free_info; /* free segment information */ 977 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 978 struct curseg_info *curseg_array; /* active segment information */ 979 980 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 981 982 block_t seg0_blkaddr; /* block address of 0'th segment */ 983 block_t main_blkaddr; /* start block address of main area */ 984 block_t ssa_blkaddr; /* start block address of SSA area */ 985 986 unsigned int segment_count; /* total # of segments */ 987 unsigned int main_segments; /* # of segments in main area */ 988 unsigned int reserved_segments; /* # of reserved segments */ 989 unsigned int ovp_segments; /* # of overprovision segments */ 990 991 /* a threshold to reclaim prefree segments */ 992 unsigned int rec_prefree_segments; 993 994 /* for batched trimming */ 995 unsigned int trim_sections; /* # of sections to trim */ 996 997 struct list_head sit_entry_set; /* sit entry set list */ 998 999 unsigned int ipu_policy; /* in-place-update policy */ 1000 unsigned int min_ipu_util; /* in-place-update threshold */ 1001 unsigned int min_fsync_blocks; /* threshold for fsync */ 1002 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 1003 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 1004 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 1005 1006 /* for flush command control */ 1007 struct flush_cmd_control *fcc_info; 1008 1009 /* for discard command control */ 1010 struct discard_cmd_control *dcc_info; 1011 }; 1012 1013 /* 1014 * For superblock 1015 */ 1016 /* 1017 * COUNT_TYPE for monitoring 1018 * 1019 * f2fs monitors the number of several block types such as on-writeback, 1020 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 1021 */ 1022 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 1023 enum count_type { 1024 F2FS_DIRTY_DENTS, 1025 F2FS_DIRTY_DATA, 1026 F2FS_DIRTY_QDATA, 1027 F2FS_DIRTY_NODES, 1028 F2FS_DIRTY_META, 1029 F2FS_INMEM_PAGES, 1030 F2FS_DIRTY_IMETA, 1031 F2FS_WB_CP_DATA, 1032 F2FS_WB_DATA, 1033 F2FS_RD_DATA, 1034 F2FS_RD_NODE, 1035 F2FS_RD_META, 1036 F2FS_DIO_WRITE, 1037 F2FS_DIO_READ, 1038 NR_COUNT_TYPE, 1039 }; 1040 1041 /* 1042 * The below are the page types of bios used in submit_bio(). 1043 * The available types are: 1044 * DATA User data pages. It operates as async mode. 1045 * NODE Node pages. It operates as async mode. 1046 * META FS metadata pages such as SIT, NAT, CP. 1047 * NR_PAGE_TYPE The number of page types. 1048 * META_FLUSH Make sure the previous pages are written 1049 * with waiting the bio's completion 1050 * ... Only can be used with META. 1051 */ 1052 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 1053 enum page_type { 1054 DATA, 1055 NODE, 1056 META, 1057 NR_PAGE_TYPE, 1058 META_FLUSH, 1059 INMEM, /* the below types are used by tracepoints only. */ 1060 INMEM_DROP, 1061 INMEM_INVALIDATE, 1062 INMEM_REVOKE, 1063 IPU, 1064 OPU, 1065 }; 1066 1067 enum temp_type { 1068 HOT = 0, /* must be zero for meta bio */ 1069 WARM, 1070 COLD, 1071 NR_TEMP_TYPE, 1072 }; 1073 1074 enum need_lock_type { 1075 LOCK_REQ = 0, 1076 LOCK_DONE, 1077 LOCK_RETRY, 1078 }; 1079 1080 enum cp_reason_type { 1081 CP_NO_NEEDED, 1082 CP_NON_REGULAR, 1083 CP_COMPRESSED, 1084 CP_HARDLINK, 1085 CP_SB_NEED_CP, 1086 CP_WRONG_PINO, 1087 CP_NO_SPC_ROLL, 1088 CP_NODE_NEED_CP, 1089 CP_FASTBOOT_MODE, 1090 CP_SPEC_LOG_NUM, 1091 CP_RECOVER_DIR, 1092 }; 1093 1094 enum iostat_type { 1095 /* WRITE IO */ 1096 APP_DIRECT_IO, /* app direct write IOs */ 1097 APP_BUFFERED_IO, /* app buffered write IOs */ 1098 APP_WRITE_IO, /* app write IOs */ 1099 APP_MAPPED_IO, /* app mapped IOs */ 1100 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1101 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1102 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1103 FS_GC_DATA_IO, /* data IOs from forground gc */ 1104 FS_GC_NODE_IO, /* node IOs from forground gc */ 1105 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1106 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1107 FS_CP_META_IO, /* meta IOs from checkpoint */ 1108 1109 /* READ IO */ 1110 APP_DIRECT_READ_IO, /* app direct read IOs */ 1111 APP_BUFFERED_READ_IO, /* app buffered read IOs */ 1112 APP_READ_IO, /* app read IOs */ 1113 APP_MAPPED_READ_IO, /* app mapped read IOs */ 1114 FS_DATA_READ_IO, /* data read IOs */ 1115 FS_GDATA_READ_IO, /* data read IOs from background gc */ 1116 FS_CDATA_READ_IO, /* compressed data read IOs */ 1117 FS_NODE_READ_IO, /* node read IOs */ 1118 FS_META_READ_IO, /* meta read IOs */ 1119 1120 /* other */ 1121 FS_DISCARD, /* discard */ 1122 NR_IO_TYPE, 1123 }; 1124 1125 struct f2fs_io_info { 1126 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1127 nid_t ino; /* inode number */ 1128 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1129 enum temp_type temp; /* contains HOT/WARM/COLD */ 1130 int op; /* contains REQ_OP_ */ 1131 int op_flags; /* req_flag_bits */ 1132 block_t new_blkaddr; /* new block address to be written */ 1133 block_t old_blkaddr; /* old block address before Cow */ 1134 struct page *page; /* page to be written */ 1135 struct page *encrypted_page; /* encrypted page */ 1136 struct page *compressed_page; /* compressed page */ 1137 struct list_head list; /* serialize IOs */ 1138 bool submitted; /* indicate IO submission */ 1139 int need_lock; /* indicate we need to lock cp_rwsem */ 1140 bool in_list; /* indicate fio is in io_list */ 1141 bool is_por; /* indicate IO is from recovery or not */ 1142 bool retry; /* need to reallocate block address */ 1143 int compr_blocks; /* # of compressed block addresses */ 1144 bool encrypted; /* indicate file is encrypted */ 1145 enum iostat_type io_type; /* io type */ 1146 struct writeback_control *io_wbc; /* writeback control */ 1147 struct bio **bio; /* bio for ipu */ 1148 sector_t *last_block; /* last block number in bio */ 1149 unsigned char version; /* version of the node */ 1150 }; 1151 1152 struct bio_entry { 1153 struct bio *bio; 1154 struct list_head list; 1155 }; 1156 1157 #define is_read_io(rw) ((rw) == READ) 1158 struct f2fs_bio_info { 1159 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1160 struct bio *bio; /* bios to merge */ 1161 sector_t last_block_in_bio; /* last block number */ 1162 struct f2fs_io_info fio; /* store buffered io info. */ 1163 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1164 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1165 struct list_head io_list; /* track fios */ 1166 struct list_head bio_list; /* bio entry list head */ 1167 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */ 1168 }; 1169 1170 #define FDEV(i) (sbi->devs[i]) 1171 #define RDEV(i) (raw_super->devs[i]) 1172 struct f2fs_dev_info { 1173 struct block_device *bdev; 1174 char path[MAX_PATH_LEN]; 1175 unsigned int total_segments; 1176 block_t start_blk; 1177 block_t end_blk; 1178 #ifdef CONFIG_BLK_DEV_ZONED 1179 unsigned int nr_blkz; /* Total number of zones */ 1180 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */ 1181 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */ 1182 #endif 1183 }; 1184 1185 enum inode_type { 1186 DIR_INODE, /* for dirty dir inode */ 1187 FILE_INODE, /* for dirty regular/symlink inode */ 1188 DIRTY_META, /* for all dirtied inode metadata */ 1189 ATOMIC_FILE, /* for all atomic files */ 1190 NR_INODE_TYPE, 1191 }; 1192 1193 /* for inner inode cache management */ 1194 struct inode_management { 1195 struct radix_tree_root ino_root; /* ino entry array */ 1196 spinlock_t ino_lock; /* for ino entry lock */ 1197 struct list_head ino_list; /* inode list head */ 1198 unsigned long ino_num; /* number of entries */ 1199 }; 1200 1201 /* for GC_AT */ 1202 struct atgc_management { 1203 bool atgc_enabled; /* ATGC is enabled or not */ 1204 struct rb_root_cached root; /* root of victim rb-tree */ 1205 struct list_head victim_list; /* linked with all victim entries */ 1206 unsigned int victim_count; /* victim count in rb-tree */ 1207 unsigned int candidate_ratio; /* candidate ratio */ 1208 unsigned int max_candidate_count; /* max candidate count */ 1209 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */ 1210 unsigned long long age_threshold; /* age threshold */ 1211 }; 1212 1213 /* For s_flag in struct f2fs_sb_info */ 1214 enum { 1215 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1216 SBI_IS_CLOSE, /* specify unmounting */ 1217 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1218 SBI_POR_DOING, /* recovery is doing or not */ 1219 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1220 SBI_NEED_CP, /* need to checkpoint */ 1221 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1222 SBI_IS_RECOVERED, /* recovered orphan/data */ 1223 SBI_CP_DISABLED, /* CP was disabled last mount */ 1224 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ 1225 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1226 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1227 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1228 SBI_IS_RESIZEFS, /* resizefs is in process */ 1229 }; 1230 1231 enum { 1232 CP_TIME, 1233 REQ_TIME, 1234 DISCARD_TIME, 1235 GC_TIME, 1236 DISABLE_TIME, 1237 UMOUNT_DISCARD_TIMEOUT, 1238 MAX_TIME, 1239 }; 1240 1241 enum { 1242 GC_NORMAL, 1243 GC_IDLE_CB, 1244 GC_IDLE_GREEDY, 1245 GC_IDLE_AT, 1246 GC_URGENT_HIGH, 1247 GC_URGENT_LOW, 1248 }; 1249 1250 enum { 1251 BGGC_MODE_ON, /* background gc is on */ 1252 BGGC_MODE_OFF, /* background gc is off */ 1253 BGGC_MODE_SYNC, /* 1254 * background gc is on, migrating blocks 1255 * like foreground gc 1256 */ 1257 }; 1258 1259 enum { 1260 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */ 1261 FS_MODE_LFS, /* use lfs allocation only */ 1262 }; 1263 1264 enum { 1265 WHINT_MODE_OFF, /* not pass down write hints */ 1266 WHINT_MODE_USER, /* try to pass down hints given by users */ 1267 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1268 }; 1269 1270 enum { 1271 ALLOC_MODE_DEFAULT, /* stay default */ 1272 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1273 }; 1274 1275 enum fsync_mode { 1276 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1277 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1278 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1279 }; 1280 1281 enum { 1282 COMPR_MODE_FS, /* 1283 * automatically compress compression 1284 * enabled files 1285 */ 1286 COMPR_MODE_USER, /* 1287 * automatical compression is disabled. 1288 * user can control the file compression 1289 * using ioctls 1290 */ 1291 }; 1292 1293 /* 1294 * this value is set in page as a private data which indicate that 1295 * the page is atomically written, and it is in inmem_pages list. 1296 */ 1297 #define ATOMIC_WRITTEN_PAGE ((unsigned long)-1) 1298 #define DUMMY_WRITTEN_PAGE ((unsigned long)-2) 1299 1300 #define IS_ATOMIC_WRITTEN_PAGE(page) \ 1301 (page_private(page) == ATOMIC_WRITTEN_PAGE) 1302 #define IS_DUMMY_WRITTEN_PAGE(page) \ 1303 (page_private(page) == DUMMY_WRITTEN_PAGE) 1304 1305 #ifdef CONFIG_F2FS_IO_TRACE 1306 #define IS_IO_TRACED_PAGE(page) \ 1307 (page_private(page) > 0 && \ 1308 page_private(page) < (unsigned long)PID_MAX_LIMIT) 1309 #else 1310 #define IS_IO_TRACED_PAGE(page) (0) 1311 #endif 1312 1313 /* For compression */ 1314 enum compress_algorithm_type { 1315 COMPRESS_LZO, 1316 COMPRESS_LZ4, 1317 COMPRESS_ZSTD, 1318 COMPRESS_LZORLE, 1319 COMPRESS_MAX, 1320 }; 1321 1322 enum compress_flag { 1323 COMPRESS_CHKSUM, 1324 COMPRESS_MAX_FLAG, 1325 }; 1326 1327 #define COMPRESS_DATA_RESERVED_SIZE 4 1328 struct compress_data { 1329 __le32 clen; /* compressed data size */ 1330 __le32 chksum; /* compressed data chksum */ 1331 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */ 1332 u8 cdata[]; /* compressed data */ 1333 }; 1334 1335 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data)) 1336 1337 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000 1338 1339 #define COMPRESS_LEVEL_OFFSET 8 1340 1341 /* compress context */ 1342 struct compress_ctx { 1343 struct inode *inode; /* inode the context belong to */ 1344 pgoff_t cluster_idx; /* cluster index number */ 1345 unsigned int cluster_size; /* page count in cluster */ 1346 unsigned int log_cluster_size; /* log of cluster size */ 1347 struct page **rpages; /* pages store raw data in cluster */ 1348 unsigned int nr_rpages; /* total page number in rpages */ 1349 struct page **cpages; /* pages store compressed data in cluster */ 1350 unsigned int nr_cpages; /* total page number in cpages */ 1351 void *rbuf; /* virtual mapped address on rpages */ 1352 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1353 size_t rlen; /* valid data length in rbuf */ 1354 size_t clen; /* valid data length in cbuf */ 1355 void *private; /* payload buffer for specified compression algorithm */ 1356 void *private2; /* extra payload buffer */ 1357 }; 1358 1359 /* compress context for write IO path */ 1360 struct compress_io_ctx { 1361 u32 magic; /* magic number to indicate page is compressed */ 1362 struct inode *inode; /* inode the context belong to */ 1363 struct page **rpages; /* pages store raw data in cluster */ 1364 unsigned int nr_rpages; /* total page number in rpages */ 1365 atomic_t pending_pages; /* in-flight compressed page count */ 1366 }; 1367 1368 /* Context for decompressing one cluster on the read IO path */ 1369 struct decompress_io_ctx { 1370 u32 magic; /* magic number to indicate page is compressed */ 1371 struct inode *inode; /* inode the context belong to */ 1372 pgoff_t cluster_idx; /* cluster index number */ 1373 unsigned int cluster_size; /* page count in cluster */ 1374 unsigned int log_cluster_size; /* log of cluster size */ 1375 struct page **rpages; /* pages store raw data in cluster */ 1376 unsigned int nr_rpages; /* total page number in rpages */ 1377 struct page **cpages; /* pages store compressed data in cluster */ 1378 unsigned int nr_cpages; /* total page number in cpages */ 1379 struct page **tpages; /* temp pages to pad holes in cluster */ 1380 void *rbuf; /* virtual mapped address on rpages */ 1381 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1382 size_t rlen; /* valid data length in rbuf */ 1383 size_t clen; /* valid data length in cbuf */ 1384 1385 /* 1386 * The number of compressed pages remaining to be read in this cluster. 1387 * This is initially nr_cpages. It is decremented by 1 each time a page 1388 * has been read (or failed to be read). When it reaches 0, the cluster 1389 * is decompressed (or an error is reported). 1390 * 1391 * If an error occurs before all the pages have been submitted for I/O, 1392 * then this will never reach 0. In this case the I/O submitter is 1393 * responsible for calling f2fs_decompress_end_io() instead. 1394 */ 1395 atomic_t remaining_pages; 1396 1397 /* 1398 * Number of references to this decompress_io_ctx. 1399 * 1400 * One reference is held for I/O completion. This reference is dropped 1401 * after the pagecache pages are updated and unlocked -- either after 1402 * decompression (and verity if enabled), or after an error. 1403 * 1404 * In addition, each compressed page holds a reference while it is in a 1405 * bio. These references are necessary prevent compressed pages from 1406 * being freed while they are still in a bio. 1407 */ 1408 refcount_t refcnt; 1409 1410 bool failed; /* IO error occurred before decompression? */ 1411 bool need_verity; /* need fs-verity verification after decompression? */ 1412 void *private; /* payload buffer for specified decompression algorithm */ 1413 void *private2; /* extra payload buffer */ 1414 struct work_struct verity_work; /* work to verify the decompressed pages */ 1415 }; 1416 1417 #define NULL_CLUSTER ((unsigned int)(~0)) 1418 #define MIN_COMPRESS_LOG_SIZE 2 1419 #define MAX_COMPRESS_LOG_SIZE 8 1420 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size)) 1421 1422 struct f2fs_sb_info { 1423 struct super_block *sb; /* pointer to VFS super block */ 1424 struct proc_dir_entry *s_proc; /* proc entry */ 1425 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1426 struct rw_semaphore sb_lock; /* lock for raw super block */ 1427 int valid_super_block; /* valid super block no */ 1428 unsigned long s_flag; /* flags for sbi */ 1429 struct mutex writepages; /* mutex for writepages() */ 1430 1431 #ifdef CONFIG_BLK_DEV_ZONED 1432 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1433 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1434 #endif 1435 1436 /* for node-related operations */ 1437 struct f2fs_nm_info *nm_info; /* node manager */ 1438 struct inode *node_inode; /* cache node blocks */ 1439 1440 /* for segment-related operations */ 1441 struct f2fs_sm_info *sm_info; /* segment manager */ 1442 1443 /* for bio operations */ 1444 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1445 /* keep migration IO order for LFS mode */ 1446 struct rw_semaphore io_order_lock; 1447 mempool_t *write_io_dummy; /* Dummy pages */ 1448 1449 /* for checkpoint */ 1450 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1451 int cur_cp_pack; /* remain current cp pack */ 1452 spinlock_t cp_lock; /* for flag in ckpt */ 1453 struct inode *meta_inode; /* cache meta blocks */ 1454 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */ 1455 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1456 struct rw_semaphore node_write; /* locking node writes */ 1457 struct rw_semaphore node_change; /* locking node change */ 1458 wait_queue_head_t cp_wait; 1459 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1460 long interval_time[MAX_TIME]; /* to store thresholds */ 1461 struct ckpt_req_control cprc_info; /* for checkpoint request control */ 1462 1463 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1464 1465 spinlock_t fsync_node_lock; /* for node entry lock */ 1466 struct list_head fsync_node_list; /* node list head */ 1467 unsigned int fsync_seg_id; /* sequence id */ 1468 unsigned int fsync_node_num; /* number of node entries */ 1469 1470 /* for orphan inode, use 0'th array */ 1471 unsigned int max_orphans; /* max orphan inodes */ 1472 1473 /* for inode management */ 1474 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1475 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1476 struct mutex flush_lock; /* for flush exclusion */ 1477 1478 /* for extent tree cache */ 1479 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1480 struct mutex extent_tree_lock; /* locking extent radix tree */ 1481 struct list_head extent_list; /* lru list for shrinker */ 1482 spinlock_t extent_lock; /* locking extent lru list */ 1483 atomic_t total_ext_tree; /* extent tree count */ 1484 struct list_head zombie_list; /* extent zombie tree list */ 1485 atomic_t total_zombie_tree; /* extent zombie tree count */ 1486 atomic_t total_ext_node; /* extent info count */ 1487 1488 /* basic filesystem units */ 1489 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1490 unsigned int log_blocksize; /* log2 block size */ 1491 unsigned int blocksize; /* block size */ 1492 unsigned int root_ino_num; /* root inode number*/ 1493 unsigned int node_ino_num; /* node inode number*/ 1494 unsigned int meta_ino_num; /* meta inode number*/ 1495 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1496 unsigned int blocks_per_seg; /* blocks per segment */ 1497 unsigned int segs_per_sec; /* segments per section */ 1498 unsigned int secs_per_zone; /* sections per zone */ 1499 unsigned int total_sections; /* total section count */ 1500 unsigned int total_node_count; /* total node block count */ 1501 unsigned int total_valid_node_count; /* valid node block count */ 1502 int dir_level; /* directory level */ 1503 int readdir_ra; /* readahead inode in readdir */ 1504 u64 max_io_bytes; /* max io bytes to merge IOs */ 1505 1506 block_t user_block_count; /* # of user blocks */ 1507 block_t total_valid_block_count; /* # of valid blocks */ 1508 block_t discard_blks; /* discard command candidats */ 1509 block_t last_valid_block_count; /* for recovery */ 1510 block_t reserved_blocks; /* configurable reserved blocks */ 1511 block_t current_reserved_blocks; /* current reserved blocks */ 1512 1513 /* Additional tracking for no checkpoint mode */ 1514 block_t unusable_block_count; /* # of blocks saved by last cp */ 1515 1516 unsigned int nquota_files; /* # of quota sysfile */ 1517 struct rw_semaphore quota_sem; /* blocking cp for flags */ 1518 1519 /* # of pages, see count_type */ 1520 atomic_t nr_pages[NR_COUNT_TYPE]; 1521 /* # of allocated blocks */ 1522 struct percpu_counter alloc_valid_block_count; 1523 1524 /* writeback control */ 1525 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1526 1527 /* valid inode count */ 1528 struct percpu_counter total_valid_inode_count; 1529 1530 struct f2fs_mount_info mount_opt; /* mount options */ 1531 1532 /* for cleaning operations */ 1533 struct rw_semaphore gc_lock; /* 1534 * semaphore for GC, avoid 1535 * race between GC and GC or CP 1536 */ 1537 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1538 struct atgc_management am; /* atgc management */ 1539 unsigned int cur_victim_sec; /* current victim section num */ 1540 unsigned int gc_mode; /* current GC state */ 1541 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1542 1543 /* for skip statistic */ 1544 unsigned int atomic_files; /* # of opened atomic file */ 1545 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1546 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1547 1548 /* threshold for gc trials on pinned files */ 1549 u64 gc_pin_file_threshold; 1550 struct rw_semaphore pin_sem; 1551 1552 /* maximum # of trials to find a victim segment for SSR and GC */ 1553 unsigned int max_victim_search; 1554 /* migration granularity of garbage collection, unit: segment */ 1555 unsigned int migration_granularity; 1556 1557 /* 1558 * for stat information. 1559 * one is for the LFS mode, and the other is for the SSR mode. 1560 */ 1561 #ifdef CONFIG_F2FS_STAT_FS 1562 struct f2fs_stat_info *stat_info; /* FS status information */ 1563 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1564 unsigned int segment_count[2]; /* # of allocated segments */ 1565 unsigned int block_count[2]; /* # of allocated blocks */ 1566 atomic_t inplace_count; /* # of inplace update */ 1567 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1568 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1569 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1570 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1571 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1572 atomic_t inline_inode; /* # of inline_data inodes */ 1573 atomic_t inline_dir; /* # of inline_dentry inodes */ 1574 atomic_t compr_inode; /* # of compressed inodes */ 1575 atomic64_t compr_blocks; /* # of compressed blocks */ 1576 atomic_t vw_cnt; /* # of volatile writes */ 1577 atomic_t max_aw_cnt; /* max # of atomic writes */ 1578 atomic_t max_vw_cnt; /* max # of volatile writes */ 1579 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1580 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1581 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1582 #endif 1583 spinlock_t stat_lock; /* lock for stat operations */ 1584 1585 /* For app/fs IO statistics */ 1586 spinlock_t iostat_lock; 1587 unsigned long long rw_iostat[NR_IO_TYPE]; 1588 unsigned long long prev_rw_iostat[NR_IO_TYPE]; 1589 bool iostat_enable; 1590 unsigned long iostat_next_period; 1591 unsigned int iostat_period_ms; 1592 1593 /* to attach REQ_META|REQ_FUA flags */ 1594 unsigned int data_io_flag; 1595 unsigned int node_io_flag; 1596 1597 /* For sysfs suppport */ 1598 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */ 1599 struct completion s_kobj_unregister; 1600 1601 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */ 1602 struct completion s_stat_kobj_unregister; 1603 1604 /* For shrinker support */ 1605 struct list_head s_list; 1606 int s_ndevs; /* number of devices */ 1607 struct f2fs_dev_info *devs; /* for device list */ 1608 unsigned int dirty_device; /* for checkpoint data flush */ 1609 spinlock_t dev_lock; /* protect dirty_device */ 1610 struct mutex umount_mutex; 1611 unsigned int shrinker_run_no; 1612 1613 /* For write statistics */ 1614 u64 sectors_written_start; 1615 u64 kbytes_written; 1616 1617 /* Reference to checksum algorithm driver via cryptoapi */ 1618 struct crypto_shash *s_chksum_driver; 1619 1620 /* Precomputed FS UUID checksum for seeding other checksums */ 1621 __u32 s_chksum_seed; 1622 1623 struct workqueue_struct *post_read_wq; /* post read workqueue */ 1624 1625 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */ 1626 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */ 1627 1628 #ifdef CONFIG_F2FS_FS_COMPRESSION 1629 struct kmem_cache *page_array_slab; /* page array entry */ 1630 unsigned int page_array_slab_size; /* default page array slab size */ 1631 1632 /* For runtime compression statistics */ 1633 u64 compr_written_block; 1634 u64 compr_saved_block; 1635 u32 compr_new_inode; 1636 #endif 1637 }; 1638 1639 struct f2fs_private_dio { 1640 struct inode *inode; 1641 void *orig_private; 1642 bio_end_io_t *orig_end_io; 1643 bool write; 1644 }; 1645 1646 #ifdef CONFIG_F2FS_FAULT_INJECTION 1647 #define f2fs_show_injection_info(sbi, type) \ 1648 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \ 1649 KERN_INFO, sbi->sb->s_id, \ 1650 f2fs_fault_name[type], \ 1651 __func__, __builtin_return_address(0)) 1652 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1653 { 1654 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1655 1656 if (!ffi->inject_rate) 1657 return false; 1658 1659 if (!IS_FAULT_SET(ffi, type)) 1660 return false; 1661 1662 atomic_inc(&ffi->inject_ops); 1663 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1664 atomic_set(&ffi->inject_ops, 0); 1665 return true; 1666 } 1667 return false; 1668 } 1669 #else 1670 #define f2fs_show_injection_info(sbi, type) do { } while (0) 1671 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1672 { 1673 return false; 1674 } 1675 #endif 1676 1677 /* 1678 * Test if the mounted volume is a multi-device volume. 1679 * - For a single regular disk volume, sbi->s_ndevs is 0. 1680 * - For a single zoned disk volume, sbi->s_ndevs is 1. 1681 * - For a multi-device volume, sbi->s_ndevs is always 2 or more. 1682 */ 1683 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi) 1684 { 1685 return sbi->s_ndevs > 1; 1686 } 1687 1688 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1689 { 1690 unsigned long now = jiffies; 1691 1692 sbi->last_time[type] = now; 1693 1694 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1695 if (type == REQ_TIME) { 1696 sbi->last_time[DISCARD_TIME] = now; 1697 sbi->last_time[GC_TIME] = now; 1698 } 1699 } 1700 1701 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1702 { 1703 unsigned long interval = sbi->interval_time[type] * HZ; 1704 1705 return time_after(jiffies, sbi->last_time[type] + interval); 1706 } 1707 1708 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1709 int type) 1710 { 1711 unsigned long interval = sbi->interval_time[type] * HZ; 1712 unsigned int wait_ms = 0; 1713 long delta; 1714 1715 delta = (sbi->last_time[type] + interval) - jiffies; 1716 if (delta > 0) 1717 wait_ms = jiffies_to_msecs(delta); 1718 1719 return wait_ms; 1720 } 1721 1722 /* 1723 * Inline functions 1724 */ 1725 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1726 const void *address, unsigned int length) 1727 { 1728 struct { 1729 struct shash_desc shash; 1730 char ctx[4]; 1731 } desc; 1732 int err; 1733 1734 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1735 1736 desc.shash.tfm = sbi->s_chksum_driver; 1737 *(u32 *)desc.ctx = crc; 1738 1739 err = crypto_shash_update(&desc.shash, address, length); 1740 BUG_ON(err); 1741 1742 return *(u32 *)desc.ctx; 1743 } 1744 1745 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1746 unsigned int length) 1747 { 1748 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1749 } 1750 1751 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1752 void *buf, size_t buf_size) 1753 { 1754 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1755 } 1756 1757 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1758 const void *address, unsigned int length) 1759 { 1760 return __f2fs_crc32(sbi, crc, address, length); 1761 } 1762 1763 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1764 { 1765 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1766 } 1767 1768 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1769 { 1770 return sb->s_fs_info; 1771 } 1772 1773 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1774 { 1775 return F2FS_SB(inode->i_sb); 1776 } 1777 1778 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1779 { 1780 return F2FS_I_SB(mapping->host); 1781 } 1782 1783 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1784 { 1785 return F2FS_M_SB(page_file_mapping(page)); 1786 } 1787 1788 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1789 { 1790 return (struct f2fs_super_block *)(sbi->raw_super); 1791 } 1792 1793 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1794 { 1795 return (struct f2fs_checkpoint *)(sbi->ckpt); 1796 } 1797 1798 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1799 { 1800 return (struct f2fs_node *)page_address(page); 1801 } 1802 1803 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1804 { 1805 return &((struct f2fs_node *)page_address(page))->i; 1806 } 1807 1808 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1809 { 1810 return (struct f2fs_nm_info *)(sbi->nm_info); 1811 } 1812 1813 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1814 { 1815 return (struct f2fs_sm_info *)(sbi->sm_info); 1816 } 1817 1818 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1819 { 1820 return (struct sit_info *)(SM_I(sbi)->sit_info); 1821 } 1822 1823 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1824 { 1825 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1826 } 1827 1828 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1829 { 1830 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1831 } 1832 1833 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1834 { 1835 return sbi->meta_inode->i_mapping; 1836 } 1837 1838 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1839 { 1840 return sbi->node_inode->i_mapping; 1841 } 1842 1843 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1844 { 1845 return test_bit(type, &sbi->s_flag); 1846 } 1847 1848 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1849 { 1850 set_bit(type, &sbi->s_flag); 1851 } 1852 1853 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1854 { 1855 clear_bit(type, &sbi->s_flag); 1856 } 1857 1858 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1859 { 1860 return le64_to_cpu(cp->checkpoint_ver); 1861 } 1862 1863 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1864 { 1865 if (type < F2FS_MAX_QUOTAS) 1866 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1867 return 0; 1868 } 1869 1870 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1871 { 1872 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1873 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1874 } 1875 1876 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1877 { 1878 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1879 1880 return ckpt_flags & f; 1881 } 1882 1883 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1884 { 1885 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1886 } 1887 1888 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1889 { 1890 unsigned int ckpt_flags; 1891 1892 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1893 ckpt_flags |= f; 1894 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1895 } 1896 1897 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1898 { 1899 unsigned long flags; 1900 1901 spin_lock_irqsave(&sbi->cp_lock, flags); 1902 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1903 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1904 } 1905 1906 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1907 { 1908 unsigned int ckpt_flags; 1909 1910 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1911 ckpt_flags &= (~f); 1912 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1913 } 1914 1915 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1916 { 1917 unsigned long flags; 1918 1919 spin_lock_irqsave(&sbi->cp_lock, flags); 1920 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1921 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1922 } 1923 1924 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1925 { 1926 unsigned long flags; 1927 unsigned char *nat_bits; 1928 1929 /* 1930 * In order to re-enable nat_bits we need to call fsck.f2fs by 1931 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1932 * so let's rely on regular fsck or unclean shutdown. 1933 */ 1934 1935 if (lock) 1936 spin_lock_irqsave(&sbi->cp_lock, flags); 1937 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 1938 nat_bits = NM_I(sbi)->nat_bits; 1939 NM_I(sbi)->nat_bits = NULL; 1940 if (lock) 1941 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1942 1943 kvfree(nat_bits); 1944 } 1945 1946 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 1947 struct cp_control *cpc) 1948 { 1949 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 1950 1951 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 1952 } 1953 1954 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 1955 { 1956 down_read(&sbi->cp_rwsem); 1957 } 1958 1959 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 1960 { 1961 return down_read_trylock(&sbi->cp_rwsem); 1962 } 1963 1964 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 1965 { 1966 up_read(&sbi->cp_rwsem); 1967 } 1968 1969 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 1970 { 1971 down_write(&sbi->cp_rwsem); 1972 } 1973 1974 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 1975 { 1976 up_write(&sbi->cp_rwsem); 1977 } 1978 1979 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 1980 { 1981 int reason = CP_SYNC; 1982 1983 if (test_opt(sbi, FASTBOOT)) 1984 reason = CP_FASTBOOT; 1985 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 1986 reason = CP_UMOUNT; 1987 return reason; 1988 } 1989 1990 static inline bool __remain_node_summaries(int reason) 1991 { 1992 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 1993 } 1994 1995 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 1996 { 1997 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 1998 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 1999 } 2000 2001 /* 2002 * Check whether the inode has blocks or not 2003 */ 2004 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 2005 { 2006 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 2007 2008 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 2009 } 2010 2011 static inline bool f2fs_has_xattr_block(unsigned int ofs) 2012 { 2013 return ofs == XATTR_NODE_OFFSET; 2014 } 2015 2016 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 2017 struct inode *inode, bool cap) 2018 { 2019 if (!inode) 2020 return true; 2021 if (!test_opt(sbi, RESERVE_ROOT)) 2022 return false; 2023 if (IS_NOQUOTA(inode)) 2024 return true; 2025 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 2026 return true; 2027 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 2028 in_group_p(F2FS_OPTION(sbi).s_resgid)) 2029 return true; 2030 if (cap && capable(CAP_SYS_RESOURCE)) 2031 return true; 2032 return false; 2033 } 2034 2035 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 2036 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 2037 struct inode *inode, blkcnt_t *count) 2038 { 2039 blkcnt_t diff = 0, release = 0; 2040 block_t avail_user_block_count; 2041 int ret; 2042 2043 ret = dquot_reserve_block(inode, *count); 2044 if (ret) 2045 return ret; 2046 2047 if (time_to_inject(sbi, FAULT_BLOCK)) { 2048 f2fs_show_injection_info(sbi, FAULT_BLOCK); 2049 release = *count; 2050 goto release_quota; 2051 } 2052 2053 /* 2054 * let's increase this in prior to actual block count change in order 2055 * for f2fs_sync_file to avoid data races when deciding checkpoint. 2056 */ 2057 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 2058 2059 spin_lock(&sbi->stat_lock); 2060 sbi->total_valid_block_count += (block_t)(*count); 2061 avail_user_block_count = sbi->user_block_count - 2062 sbi->current_reserved_blocks; 2063 2064 if (!__allow_reserved_blocks(sbi, inode, true)) 2065 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 2066 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { 2067 if (avail_user_block_count > sbi->unusable_block_count) 2068 avail_user_block_count -= sbi->unusable_block_count; 2069 else 2070 avail_user_block_count = 0; 2071 } 2072 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 2073 diff = sbi->total_valid_block_count - avail_user_block_count; 2074 if (diff > *count) 2075 diff = *count; 2076 *count -= diff; 2077 release = diff; 2078 sbi->total_valid_block_count -= diff; 2079 if (!*count) { 2080 spin_unlock(&sbi->stat_lock); 2081 goto enospc; 2082 } 2083 } 2084 spin_unlock(&sbi->stat_lock); 2085 2086 if (unlikely(release)) { 2087 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2088 dquot_release_reservation_block(inode, release); 2089 } 2090 f2fs_i_blocks_write(inode, *count, true, true); 2091 return 0; 2092 2093 enospc: 2094 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2095 release_quota: 2096 dquot_release_reservation_block(inode, release); 2097 return -ENOSPC; 2098 } 2099 2100 __printf(2, 3) 2101 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...); 2102 2103 #define f2fs_err(sbi, fmt, ...) \ 2104 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__) 2105 #define f2fs_warn(sbi, fmt, ...) \ 2106 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__) 2107 #define f2fs_notice(sbi, fmt, ...) \ 2108 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__) 2109 #define f2fs_info(sbi, fmt, ...) \ 2110 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__) 2111 #define f2fs_debug(sbi, fmt, ...) \ 2112 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__) 2113 2114 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 2115 struct inode *inode, 2116 block_t count) 2117 { 2118 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 2119 2120 spin_lock(&sbi->stat_lock); 2121 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 2122 sbi->total_valid_block_count -= (block_t)count; 2123 if (sbi->reserved_blocks && 2124 sbi->current_reserved_blocks < sbi->reserved_blocks) 2125 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 2126 sbi->current_reserved_blocks + count); 2127 spin_unlock(&sbi->stat_lock); 2128 if (unlikely(inode->i_blocks < sectors)) { 2129 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu", 2130 inode->i_ino, 2131 (unsigned long long)inode->i_blocks, 2132 (unsigned long long)sectors); 2133 set_sbi_flag(sbi, SBI_NEED_FSCK); 2134 return; 2135 } 2136 f2fs_i_blocks_write(inode, count, false, true); 2137 } 2138 2139 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 2140 { 2141 atomic_inc(&sbi->nr_pages[count_type]); 2142 2143 if (count_type == F2FS_DIRTY_DENTS || 2144 count_type == F2FS_DIRTY_NODES || 2145 count_type == F2FS_DIRTY_META || 2146 count_type == F2FS_DIRTY_QDATA || 2147 count_type == F2FS_DIRTY_IMETA) 2148 set_sbi_flag(sbi, SBI_IS_DIRTY); 2149 } 2150 2151 static inline void inode_inc_dirty_pages(struct inode *inode) 2152 { 2153 atomic_inc(&F2FS_I(inode)->dirty_pages); 2154 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2155 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2156 if (IS_NOQUOTA(inode)) 2157 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2158 } 2159 2160 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 2161 { 2162 atomic_dec(&sbi->nr_pages[count_type]); 2163 } 2164 2165 static inline void inode_dec_dirty_pages(struct inode *inode) 2166 { 2167 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 2168 !S_ISLNK(inode->i_mode)) 2169 return; 2170 2171 atomic_dec(&F2FS_I(inode)->dirty_pages); 2172 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2173 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2174 if (IS_NOQUOTA(inode)) 2175 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2176 } 2177 2178 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 2179 { 2180 return atomic_read(&sbi->nr_pages[count_type]); 2181 } 2182 2183 static inline int get_dirty_pages(struct inode *inode) 2184 { 2185 return atomic_read(&F2FS_I(inode)->dirty_pages); 2186 } 2187 2188 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 2189 { 2190 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 2191 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 2192 sbi->log_blocks_per_seg; 2193 2194 return segs / sbi->segs_per_sec; 2195 } 2196 2197 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 2198 { 2199 return sbi->total_valid_block_count; 2200 } 2201 2202 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 2203 { 2204 return sbi->discard_blks; 2205 } 2206 2207 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 2208 { 2209 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2210 2211 /* return NAT or SIT bitmap */ 2212 if (flag == NAT_BITMAP) 2213 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 2214 else if (flag == SIT_BITMAP) 2215 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 2216 2217 return 0; 2218 } 2219 2220 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 2221 { 2222 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 2223 } 2224 2225 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 2226 { 2227 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2228 void *tmp_ptr = &ckpt->sit_nat_version_bitmap; 2229 int offset; 2230 2231 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 2232 offset = (flag == SIT_BITMAP) ? 2233 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 2234 /* 2235 * if large_nat_bitmap feature is enabled, leave checksum 2236 * protection for all nat/sit bitmaps. 2237 */ 2238 return tmp_ptr + offset + sizeof(__le32); 2239 } 2240 2241 if (__cp_payload(sbi) > 0) { 2242 if (flag == NAT_BITMAP) 2243 return &ckpt->sit_nat_version_bitmap; 2244 else 2245 return (unsigned char *)ckpt + F2FS_BLKSIZE; 2246 } else { 2247 offset = (flag == NAT_BITMAP) ? 2248 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 2249 return tmp_ptr + offset; 2250 } 2251 } 2252 2253 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 2254 { 2255 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2256 2257 if (sbi->cur_cp_pack == 2) 2258 start_addr += sbi->blocks_per_seg; 2259 return start_addr; 2260 } 2261 2262 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 2263 { 2264 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2265 2266 if (sbi->cur_cp_pack == 1) 2267 start_addr += sbi->blocks_per_seg; 2268 return start_addr; 2269 } 2270 2271 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 2272 { 2273 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 2274 } 2275 2276 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 2277 { 2278 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 2279 } 2280 2281 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 2282 struct inode *inode, bool is_inode) 2283 { 2284 block_t valid_block_count; 2285 unsigned int valid_node_count, user_block_count; 2286 int err; 2287 2288 if (is_inode) { 2289 if (inode) { 2290 err = dquot_alloc_inode(inode); 2291 if (err) 2292 return err; 2293 } 2294 } else { 2295 err = dquot_reserve_block(inode, 1); 2296 if (err) 2297 return err; 2298 } 2299 2300 if (time_to_inject(sbi, FAULT_BLOCK)) { 2301 f2fs_show_injection_info(sbi, FAULT_BLOCK); 2302 goto enospc; 2303 } 2304 2305 spin_lock(&sbi->stat_lock); 2306 2307 valid_block_count = sbi->total_valid_block_count + 2308 sbi->current_reserved_blocks + 1; 2309 2310 if (!__allow_reserved_blocks(sbi, inode, false)) 2311 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 2312 user_block_count = sbi->user_block_count; 2313 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 2314 user_block_count -= sbi->unusable_block_count; 2315 2316 if (unlikely(valid_block_count > user_block_count)) { 2317 spin_unlock(&sbi->stat_lock); 2318 goto enospc; 2319 } 2320 2321 valid_node_count = sbi->total_valid_node_count + 1; 2322 if (unlikely(valid_node_count > sbi->total_node_count)) { 2323 spin_unlock(&sbi->stat_lock); 2324 goto enospc; 2325 } 2326 2327 sbi->total_valid_node_count++; 2328 sbi->total_valid_block_count++; 2329 spin_unlock(&sbi->stat_lock); 2330 2331 if (inode) { 2332 if (is_inode) 2333 f2fs_mark_inode_dirty_sync(inode, true); 2334 else 2335 f2fs_i_blocks_write(inode, 1, true, true); 2336 } 2337 2338 percpu_counter_inc(&sbi->alloc_valid_block_count); 2339 return 0; 2340 2341 enospc: 2342 if (is_inode) { 2343 if (inode) 2344 dquot_free_inode(inode); 2345 } else { 2346 dquot_release_reservation_block(inode, 1); 2347 } 2348 return -ENOSPC; 2349 } 2350 2351 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2352 struct inode *inode, bool is_inode) 2353 { 2354 spin_lock(&sbi->stat_lock); 2355 2356 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2357 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2358 2359 sbi->total_valid_node_count--; 2360 sbi->total_valid_block_count--; 2361 if (sbi->reserved_blocks && 2362 sbi->current_reserved_blocks < sbi->reserved_blocks) 2363 sbi->current_reserved_blocks++; 2364 2365 spin_unlock(&sbi->stat_lock); 2366 2367 if (is_inode) { 2368 dquot_free_inode(inode); 2369 } else { 2370 if (unlikely(inode->i_blocks == 0)) { 2371 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu", 2372 inode->i_ino, 2373 (unsigned long long)inode->i_blocks); 2374 set_sbi_flag(sbi, SBI_NEED_FSCK); 2375 return; 2376 } 2377 f2fs_i_blocks_write(inode, 1, false, true); 2378 } 2379 } 2380 2381 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2382 { 2383 return sbi->total_valid_node_count; 2384 } 2385 2386 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2387 { 2388 percpu_counter_inc(&sbi->total_valid_inode_count); 2389 } 2390 2391 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2392 { 2393 percpu_counter_dec(&sbi->total_valid_inode_count); 2394 } 2395 2396 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2397 { 2398 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2399 } 2400 2401 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2402 pgoff_t index, bool for_write) 2403 { 2404 struct page *page; 2405 2406 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2407 if (!for_write) 2408 page = find_get_page_flags(mapping, index, 2409 FGP_LOCK | FGP_ACCESSED); 2410 else 2411 page = find_lock_page(mapping, index); 2412 if (page) 2413 return page; 2414 2415 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2416 f2fs_show_injection_info(F2FS_M_SB(mapping), 2417 FAULT_PAGE_ALLOC); 2418 return NULL; 2419 } 2420 } 2421 2422 if (!for_write) 2423 return grab_cache_page(mapping, index); 2424 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2425 } 2426 2427 static inline struct page *f2fs_pagecache_get_page( 2428 struct address_space *mapping, pgoff_t index, 2429 int fgp_flags, gfp_t gfp_mask) 2430 { 2431 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2432 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET); 2433 return NULL; 2434 } 2435 2436 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2437 } 2438 2439 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2440 { 2441 char *src_kaddr = kmap(src); 2442 char *dst_kaddr = kmap(dst); 2443 2444 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2445 kunmap(dst); 2446 kunmap(src); 2447 } 2448 2449 static inline void f2fs_put_page(struct page *page, int unlock) 2450 { 2451 if (!page) 2452 return; 2453 2454 if (unlock) { 2455 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2456 unlock_page(page); 2457 } 2458 put_page(page); 2459 } 2460 2461 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2462 { 2463 if (dn->node_page) 2464 f2fs_put_page(dn->node_page, 1); 2465 if (dn->inode_page && dn->node_page != dn->inode_page) 2466 f2fs_put_page(dn->inode_page, 0); 2467 dn->node_page = NULL; 2468 dn->inode_page = NULL; 2469 } 2470 2471 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2472 size_t size) 2473 { 2474 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2475 } 2476 2477 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2478 gfp_t flags) 2479 { 2480 void *entry; 2481 2482 entry = kmem_cache_alloc(cachep, flags); 2483 if (!entry) 2484 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2485 return entry; 2486 } 2487 2488 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type) 2489 { 2490 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2491 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2492 get_pages(sbi, F2FS_WB_CP_DATA) || 2493 get_pages(sbi, F2FS_DIO_READ) || 2494 get_pages(sbi, F2FS_DIO_WRITE)) 2495 return true; 2496 2497 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info && 2498 atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) 2499 return true; 2500 2501 if (SM_I(sbi) && SM_I(sbi)->fcc_info && 2502 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2503 return true; 2504 return false; 2505 } 2506 2507 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2508 { 2509 if (sbi->gc_mode == GC_URGENT_HIGH) 2510 return true; 2511 2512 if (is_inflight_io(sbi, type)) 2513 return false; 2514 2515 if (sbi->gc_mode == GC_URGENT_LOW && 2516 (type == DISCARD_TIME || type == GC_TIME)) 2517 return true; 2518 2519 return f2fs_time_over(sbi, type); 2520 } 2521 2522 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2523 unsigned long index, void *item) 2524 { 2525 while (radix_tree_insert(root, index, item)) 2526 cond_resched(); 2527 } 2528 2529 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2530 2531 static inline bool IS_INODE(struct page *page) 2532 { 2533 struct f2fs_node *p = F2FS_NODE(page); 2534 2535 return RAW_IS_INODE(p); 2536 } 2537 2538 static inline int offset_in_addr(struct f2fs_inode *i) 2539 { 2540 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2541 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2542 } 2543 2544 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2545 { 2546 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2547 } 2548 2549 static inline int f2fs_has_extra_attr(struct inode *inode); 2550 static inline block_t data_blkaddr(struct inode *inode, 2551 struct page *node_page, unsigned int offset) 2552 { 2553 struct f2fs_node *raw_node; 2554 __le32 *addr_array; 2555 int base = 0; 2556 bool is_inode = IS_INODE(node_page); 2557 2558 raw_node = F2FS_NODE(node_page); 2559 2560 if (is_inode) { 2561 if (!inode) 2562 /* from GC path only */ 2563 base = offset_in_addr(&raw_node->i); 2564 else if (f2fs_has_extra_attr(inode)) 2565 base = get_extra_isize(inode); 2566 } 2567 2568 addr_array = blkaddr_in_node(raw_node); 2569 return le32_to_cpu(addr_array[base + offset]); 2570 } 2571 2572 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn) 2573 { 2574 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node); 2575 } 2576 2577 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2578 { 2579 int mask; 2580 2581 addr += (nr >> 3); 2582 mask = 1 << (7 - (nr & 0x07)); 2583 return mask & *addr; 2584 } 2585 2586 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2587 { 2588 int mask; 2589 2590 addr += (nr >> 3); 2591 mask = 1 << (7 - (nr & 0x07)); 2592 *addr |= mask; 2593 } 2594 2595 static inline void f2fs_clear_bit(unsigned int nr, char *addr) 2596 { 2597 int mask; 2598 2599 addr += (nr >> 3); 2600 mask = 1 << (7 - (nr & 0x07)); 2601 *addr &= ~mask; 2602 } 2603 2604 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2605 { 2606 int mask; 2607 int ret; 2608 2609 addr += (nr >> 3); 2610 mask = 1 << (7 - (nr & 0x07)); 2611 ret = mask & *addr; 2612 *addr |= mask; 2613 return ret; 2614 } 2615 2616 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2617 { 2618 int mask; 2619 int ret; 2620 2621 addr += (nr >> 3); 2622 mask = 1 << (7 - (nr & 0x07)); 2623 ret = mask & *addr; 2624 *addr &= ~mask; 2625 return ret; 2626 } 2627 2628 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2629 { 2630 int mask; 2631 2632 addr += (nr >> 3); 2633 mask = 1 << (7 - (nr & 0x07)); 2634 *addr ^= mask; 2635 } 2636 2637 /* 2638 * On-disk inode flags (f2fs_inode::i_flags) 2639 */ 2640 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2641 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2642 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2643 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2644 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2645 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2646 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */ 2647 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2648 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2649 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2650 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */ 2651 2652 /* Flags that should be inherited by new inodes from their parent. */ 2653 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \ 2654 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2655 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL) 2656 2657 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2658 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2659 F2FS_CASEFOLD_FL)) 2660 2661 /* Flags that are appropriate for non-directories/regular files. */ 2662 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2663 2664 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2665 { 2666 if (S_ISDIR(mode)) 2667 return flags; 2668 else if (S_ISREG(mode)) 2669 return flags & F2FS_REG_FLMASK; 2670 else 2671 return flags & F2FS_OTHER_FLMASK; 2672 } 2673 2674 static inline void __mark_inode_dirty_flag(struct inode *inode, 2675 int flag, bool set) 2676 { 2677 switch (flag) { 2678 case FI_INLINE_XATTR: 2679 case FI_INLINE_DATA: 2680 case FI_INLINE_DENTRY: 2681 case FI_NEW_INODE: 2682 if (set) 2683 return; 2684 fallthrough; 2685 case FI_DATA_EXIST: 2686 case FI_INLINE_DOTS: 2687 case FI_PIN_FILE: 2688 f2fs_mark_inode_dirty_sync(inode, true); 2689 } 2690 } 2691 2692 static inline void set_inode_flag(struct inode *inode, int flag) 2693 { 2694 set_bit(flag, F2FS_I(inode)->flags); 2695 __mark_inode_dirty_flag(inode, flag, true); 2696 } 2697 2698 static inline int is_inode_flag_set(struct inode *inode, int flag) 2699 { 2700 return test_bit(flag, F2FS_I(inode)->flags); 2701 } 2702 2703 static inline void clear_inode_flag(struct inode *inode, int flag) 2704 { 2705 clear_bit(flag, F2FS_I(inode)->flags); 2706 __mark_inode_dirty_flag(inode, flag, false); 2707 } 2708 2709 static inline bool f2fs_verity_in_progress(struct inode *inode) 2710 { 2711 return IS_ENABLED(CONFIG_FS_VERITY) && 2712 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS); 2713 } 2714 2715 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2716 { 2717 F2FS_I(inode)->i_acl_mode = mode; 2718 set_inode_flag(inode, FI_ACL_MODE); 2719 f2fs_mark_inode_dirty_sync(inode, false); 2720 } 2721 2722 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2723 { 2724 if (inc) 2725 inc_nlink(inode); 2726 else 2727 drop_nlink(inode); 2728 f2fs_mark_inode_dirty_sync(inode, true); 2729 } 2730 2731 static inline void f2fs_i_blocks_write(struct inode *inode, 2732 block_t diff, bool add, bool claim) 2733 { 2734 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2735 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2736 2737 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2738 if (add) { 2739 if (claim) 2740 dquot_claim_block(inode, diff); 2741 else 2742 dquot_alloc_block_nofail(inode, diff); 2743 } else { 2744 dquot_free_block(inode, diff); 2745 } 2746 2747 f2fs_mark_inode_dirty_sync(inode, true); 2748 if (clean || recover) 2749 set_inode_flag(inode, FI_AUTO_RECOVER); 2750 } 2751 2752 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2753 { 2754 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2755 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2756 2757 if (i_size_read(inode) == i_size) 2758 return; 2759 2760 i_size_write(inode, i_size); 2761 f2fs_mark_inode_dirty_sync(inode, true); 2762 if (clean || recover) 2763 set_inode_flag(inode, FI_AUTO_RECOVER); 2764 } 2765 2766 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2767 { 2768 F2FS_I(inode)->i_current_depth = depth; 2769 f2fs_mark_inode_dirty_sync(inode, true); 2770 } 2771 2772 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2773 unsigned int count) 2774 { 2775 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2776 f2fs_mark_inode_dirty_sync(inode, true); 2777 } 2778 2779 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2780 { 2781 F2FS_I(inode)->i_xattr_nid = xnid; 2782 f2fs_mark_inode_dirty_sync(inode, true); 2783 } 2784 2785 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2786 { 2787 F2FS_I(inode)->i_pino = pino; 2788 f2fs_mark_inode_dirty_sync(inode, true); 2789 } 2790 2791 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2792 { 2793 struct f2fs_inode_info *fi = F2FS_I(inode); 2794 2795 if (ri->i_inline & F2FS_INLINE_XATTR) 2796 set_bit(FI_INLINE_XATTR, fi->flags); 2797 if (ri->i_inline & F2FS_INLINE_DATA) 2798 set_bit(FI_INLINE_DATA, fi->flags); 2799 if (ri->i_inline & F2FS_INLINE_DENTRY) 2800 set_bit(FI_INLINE_DENTRY, fi->flags); 2801 if (ri->i_inline & F2FS_DATA_EXIST) 2802 set_bit(FI_DATA_EXIST, fi->flags); 2803 if (ri->i_inline & F2FS_INLINE_DOTS) 2804 set_bit(FI_INLINE_DOTS, fi->flags); 2805 if (ri->i_inline & F2FS_EXTRA_ATTR) 2806 set_bit(FI_EXTRA_ATTR, fi->flags); 2807 if (ri->i_inline & F2FS_PIN_FILE) 2808 set_bit(FI_PIN_FILE, fi->flags); 2809 } 2810 2811 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2812 { 2813 ri->i_inline = 0; 2814 2815 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2816 ri->i_inline |= F2FS_INLINE_XATTR; 2817 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2818 ri->i_inline |= F2FS_INLINE_DATA; 2819 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2820 ri->i_inline |= F2FS_INLINE_DENTRY; 2821 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2822 ri->i_inline |= F2FS_DATA_EXIST; 2823 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2824 ri->i_inline |= F2FS_INLINE_DOTS; 2825 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2826 ri->i_inline |= F2FS_EXTRA_ATTR; 2827 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2828 ri->i_inline |= F2FS_PIN_FILE; 2829 } 2830 2831 static inline int f2fs_has_extra_attr(struct inode *inode) 2832 { 2833 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2834 } 2835 2836 static inline int f2fs_has_inline_xattr(struct inode *inode) 2837 { 2838 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2839 } 2840 2841 static inline int f2fs_compressed_file(struct inode *inode) 2842 { 2843 return S_ISREG(inode->i_mode) && 2844 is_inode_flag_set(inode, FI_COMPRESSED_FILE); 2845 } 2846 2847 static inline bool f2fs_need_compress_data(struct inode *inode) 2848 { 2849 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode; 2850 2851 if (!f2fs_compressed_file(inode)) 2852 return false; 2853 2854 if (compress_mode == COMPR_MODE_FS) 2855 return true; 2856 else if (compress_mode == COMPR_MODE_USER && 2857 is_inode_flag_set(inode, FI_ENABLE_COMPRESS)) 2858 return true; 2859 2860 return false; 2861 } 2862 2863 static inline unsigned int addrs_per_inode(struct inode *inode) 2864 { 2865 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) - 2866 get_inline_xattr_addrs(inode); 2867 2868 if (!f2fs_compressed_file(inode)) 2869 return addrs; 2870 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size); 2871 } 2872 2873 static inline unsigned int addrs_per_block(struct inode *inode) 2874 { 2875 if (!f2fs_compressed_file(inode)) 2876 return DEF_ADDRS_PER_BLOCK; 2877 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size); 2878 } 2879 2880 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2881 { 2882 struct f2fs_inode *ri = F2FS_INODE(page); 2883 2884 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2885 get_inline_xattr_addrs(inode)]); 2886 } 2887 2888 static inline int inline_xattr_size(struct inode *inode) 2889 { 2890 if (f2fs_has_inline_xattr(inode)) 2891 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2892 return 0; 2893 } 2894 2895 static inline int f2fs_has_inline_data(struct inode *inode) 2896 { 2897 return is_inode_flag_set(inode, FI_INLINE_DATA); 2898 } 2899 2900 static inline int f2fs_exist_data(struct inode *inode) 2901 { 2902 return is_inode_flag_set(inode, FI_DATA_EXIST); 2903 } 2904 2905 static inline int f2fs_has_inline_dots(struct inode *inode) 2906 { 2907 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2908 } 2909 2910 static inline int f2fs_is_mmap_file(struct inode *inode) 2911 { 2912 return is_inode_flag_set(inode, FI_MMAP_FILE); 2913 } 2914 2915 static inline bool f2fs_is_pinned_file(struct inode *inode) 2916 { 2917 return is_inode_flag_set(inode, FI_PIN_FILE); 2918 } 2919 2920 static inline bool f2fs_is_atomic_file(struct inode *inode) 2921 { 2922 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2923 } 2924 2925 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2926 { 2927 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 2928 } 2929 2930 static inline bool f2fs_is_volatile_file(struct inode *inode) 2931 { 2932 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 2933 } 2934 2935 static inline bool f2fs_is_first_block_written(struct inode *inode) 2936 { 2937 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 2938 } 2939 2940 static inline bool f2fs_is_drop_cache(struct inode *inode) 2941 { 2942 return is_inode_flag_set(inode, FI_DROP_CACHE); 2943 } 2944 2945 static inline void *inline_data_addr(struct inode *inode, struct page *page) 2946 { 2947 struct f2fs_inode *ri = F2FS_INODE(page); 2948 int extra_size = get_extra_isize(inode); 2949 2950 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 2951 } 2952 2953 static inline int f2fs_has_inline_dentry(struct inode *inode) 2954 { 2955 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 2956 } 2957 2958 static inline int is_file(struct inode *inode, int type) 2959 { 2960 return F2FS_I(inode)->i_advise & type; 2961 } 2962 2963 static inline void set_file(struct inode *inode, int type) 2964 { 2965 F2FS_I(inode)->i_advise |= type; 2966 f2fs_mark_inode_dirty_sync(inode, true); 2967 } 2968 2969 static inline void clear_file(struct inode *inode, int type) 2970 { 2971 F2FS_I(inode)->i_advise &= ~type; 2972 f2fs_mark_inode_dirty_sync(inode, true); 2973 } 2974 2975 static inline bool f2fs_is_time_consistent(struct inode *inode) 2976 { 2977 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 2978 return false; 2979 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 2980 return false; 2981 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 2982 return false; 2983 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 2984 &F2FS_I(inode)->i_crtime)) 2985 return false; 2986 return true; 2987 } 2988 2989 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 2990 { 2991 bool ret; 2992 2993 if (dsync) { 2994 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2995 2996 spin_lock(&sbi->inode_lock[DIRTY_META]); 2997 ret = list_empty(&F2FS_I(inode)->gdirty_list); 2998 spin_unlock(&sbi->inode_lock[DIRTY_META]); 2999 return ret; 3000 } 3001 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 3002 file_keep_isize(inode) || 3003 i_size_read(inode) & ~PAGE_MASK) 3004 return false; 3005 3006 if (!f2fs_is_time_consistent(inode)) 3007 return false; 3008 3009 spin_lock(&F2FS_I(inode)->i_size_lock); 3010 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 3011 spin_unlock(&F2FS_I(inode)->i_size_lock); 3012 3013 return ret; 3014 } 3015 3016 static inline bool f2fs_readonly(struct super_block *sb) 3017 { 3018 return sb_rdonly(sb); 3019 } 3020 3021 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 3022 { 3023 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 3024 } 3025 3026 static inline bool is_dot_dotdot(const u8 *name, size_t len) 3027 { 3028 if (len == 1 && name[0] == '.') 3029 return true; 3030 3031 if (len == 2 && name[0] == '.' && name[1] == '.') 3032 return true; 3033 3034 return false; 3035 } 3036 3037 static inline bool f2fs_may_extent_tree(struct inode *inode) 3038 { 3039 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3040 3041 if (!test_opt(sbi, EXTENT_CACHE) || 3042 is_inode_flag_set(inode, FI_NO_EXTENT) || 3043 is_inode_flag_set(inode, FI_COMPRESSED_FILE)) 3044 return false; 3045 3046 /* 3047 * for recovered files during mount do not create extents 3048 * if shrinker is not registered. 3049 */ 3050 if (list_empty(&sbi->s_list)) 3051 return false; 3052 3053 return S_ISREG(inode->i_mode); 3054 } 3055 3056 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 3057 size_t size, gfp_t flags) 3058 { 3059 if (time_to_inject(sbi, FAULT_KMALLOC)) { 3060 f2fs_show_injection_info(sbi, FAULT_KMALLOC); 3061 return NULL; 3062 } 3063 3064 return kmalloc(size, flags); 3065 } 3066 3067 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 3068 size_t size, gfp_t flags) 3069 { 3070 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 3071 } 3072 3073 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 3074 size_t size, gfp_t flags) 3075 { 3076 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 3077 f2fs_show_injection_info(sbi, FAULT_KVMALLOC); 3078 return NULL; 3079 } 3080 3081 return kvmalloc(size, flags); 3082 } 3083 3084 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 3085 size_t size, gfp_t flags) 3086 { 3087 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 3088 } 3089 3090 static inline int get_extra_isize(struct inode *inode) 3091 { 3092 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 3093 } 3094 3095 static inline int get_inline_xattr_addrs(struct inode *inode) 3096 { 3097 return F2FS_I(inode)->i_inline_xattr_size; 3098 } 3099 3100 #define f2fs_get_inode_mode(i) \ 3101 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 3102 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 3103 3104 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 3105 (offsetof(struct f2fs_inode, i_extra_end) - \ 3106 offsetof(struct f2fs_inode, i_extra_isize)) \ 3107 3108 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 3109 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 3110 ((offsetof(typeof(*(f2fs_inode)), field) + \ 3111 sizeof((f2fs_inode)->field)) \ 3112 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 3113 3114 #define DEFAULT_IOSTAT_PERIOD_MS 3000 3115 #define MIN_IOSTAT_PERIOD_MS 100 3116 /* maximum period of iostat tracing is 1 day */ 3117 #define MAX_IOSTAT_PERIOD_MS 8640000 3118 3119 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 3120 { 3121 int i; 3122 3123 spin_lock(&sbi->iostat_lock); 3124 for (i = 0; i < NR_IO_TYPE; i++) { 3125 sbi->rw_iostat[i] = 0; 3126 sbi->prev_rw_iostat[i] = 0; 3127 } 3128 spin_unlock(&sbi->iostat_lock); 3129 } 3130 3131 extern void f2fs_record_iostat(struct f2fs_sb_info *sbi); 3132 3133 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 3134 enum iostat_type type, unsigned long long io_bytes) 3135 { 3136 if (!sbi->iostat_enable) 3137 return; 3138 spin_lock(&sbi->iostat_lock); 3139 sbi->rw_iostat[type] += io_bytes; 3140 3141 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 3142 sbi->rw_iostat[APP_BUFFERED_IO] = 3143 sbi->rw_iostat[APP_WRITE_IO] - 3144 sbi->rw_iostat[APP_DIRECT_IO]; 3145 3146 if (type == APP_READ_IO || type == APP_DIRECT_READ_IO) 3147 sbi->rw_iostat[APP_BUFFERED_READ_IO] = 3148 sbi->rw_iostat[APP_READ_IO] - 3149 sbi->rw_iostat[APP_DIRECT_READ_IO]; 3150 spin_unlock(&sbi->iostat_lock); 3151 3152 f2fs_record_iostat(sbi); 3153 } 3154 3155 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 3156 3157 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META) 3158 3159 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3160 block_t blkaddr, int type); 3161 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 3162 block_t blkaddr, int type) 3163 { 3164 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 3165 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.", 3166 blkaddr, type); 3167 f2fs_bug_on(sbi, 1); 3168 } 3169 } 3170 3171 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 3172 { 3173 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR || 3174 blkaddr == COMPRESS_ADDR) 3175 return false; 3176 return true; 3177 } 3178 3179 static inline void f2fs_set_page_private(struct page *page, 3180 unsigned long data) 3181 { 3182 if (PagePrivate(page)) 3183 return; 3184 3185 attach_page_private(page, (void *)data); 3186 } 3187 3188 static inline void f2fs_clear_page_private(struct page *page) 3189 { 3190 detach_page_private(page); 3191 } 3192 3193 /* 3194 * file.c 3195 */ 3196 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 3197 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 3198 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock); 3199 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); 3200 int f2fs_truncate(struct inode *inode); 3201 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path, 3202 struct kstat *stat, u32 request_mask, unsigned int flags); 3203 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry, 3204 struct iattr *attr); 3205 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 3206 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 3207 int f2fs_precache_extents(struct inode *inode); 3208 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 3209 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 3210 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 3211 int f2fs_pin_file_control(struct inode *inode, bool inc); 3212 3213 /* 3214 * inode.c 3215 */ 3216 void f2fs_set_inode_flags(struct inode *inode); 3217 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 3218 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 3219 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 3220 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 3221 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 3222 void f2fs_update_inode(struct inode *inode, struct page *node_page); 3223 void f2fs_update_inode_page(struct inode *inode); 3224 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 3225 void f2fs_evict_inode(struct inode *inode); 3226 void f2fs_handle_failed_inode(struct inode *inode); 3227 3228 /* 3229 * namei.c 3230 */ 3231 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 3232 bool hot, bool set); 3233 struct dentry *f2fs_get_parent(struct dentry *child); 3234 3235 /* 3236 * dir.c 3237 */ 3238 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 3239 int f2fs_init_casefolded_name(const struct inode *dir, 3240 struct f2fs_filename *fname); 3241 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname, 3242 int lookup, struct f2fs_filename *fname); 3243 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry, 3244 struct f2fs_filename *fname); 3245 void f2fs_free_filename(struct f2fs_filename *fname); 3246 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d, 3247 const struct f2fs_filename *fname, int *max_slots); 3248 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 3249 unsigned int start_pos, struct fscrypt_str *fstr); 3250 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 3251 struct f2fs_dentry_ptr *d); 3252 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 3253 const struct f2fs_filename *fname, struct page *dpage); 3254 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 3255 unsigned int current_depth); 3256 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 3257 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 3258 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 3259 const struct f2fs_filename *fname, 3260 struct page **res_page); 3261 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 3262 const struct qstr *child, struct page **res_page); 3263 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 3264 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 3265 struct page **page); 3266 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 3267 struct page *page, struct inode *inode); 3268 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage, 3269 const struct f2fs_filename *fname); 3270 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 3271 const struct fscrypt_str *name, f2fs_hash_t name_hash, 3272 unsigned int bit_pos); 3273 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname, 3274 struct inode *inode, nid_t ino, umode_t mode); 3275 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname, 3276 struct inode *inode, nid_t ino, umode_t mode); 3277 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 3278 struct inode *inode, nid_t ino, umode_t mode); 3279 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 3280 struct inode *dir, struct inode *inode); 3281 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 3282 bool f2fs_empty_dir(struct inode *dir); 3283 3284 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 3285 { 3286 if (fscrypt_is_nokey_name(dentry)) 3287 return -ENOKEY; 3288 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 3289 inode, inode->i_ino, inode->i_mode); 3290 } 3291 3292 /* 3293 * super.c 3294 */ 3295 int f2fs_inode_dirtied(struct inode *inode, bool sync); 3296 void f2fs_inode_synced(struct inode *inode); 3297 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 3298 int f2fs_quota_sync(struct super_block *sb, int type); 3299 loff_t max_file_blocks(struct inode *inode); 3300 void f2fs_quota_off_umount(struct super_block *sb); 3301 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 3302 int f2fs_sync_fs(struct super_block *sb, int sync); 3303 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 3304 3305 /* 3306 * hash.c 3307 */ 3308 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname); 3309 3310 /* 3311 * node.c 3312 */ 3313 struct dnode_of_data; 3314 struct node_info; 3315 3316 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); 3317 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); 3318 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); 3319 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); 3320 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); 3321 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); 3322 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); 3323 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); 3324 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); 3325 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 3326 struct node_info *ni); 3327 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); 3328 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); 3329 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); 3330 int f2fs_truncate_xattr_node(struct inode *inode); 3331 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 3332 unsigned int seq_id); 3333 int f2fs_remove_inode_page(struct inode *inode); 3334 struct page *f2fs_new_inode_page(struct inode *inode); 3335 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); 3336 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); 3337 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); 3338 struct page *f2fs_get_node_page_ra(struct page *parent, int start); 3339 int f2fs_move_node_page(struct page *node_page, int gc_type); 3340 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi); 3341 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 3342 struct writeback_control *wbc, bool atomic, 3343 unsigned int *seq_id); 3344 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 3345 struct writeback_control *wbc, 3346 bool do_balance, enum iostat_type io_type); 3347 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); 3348 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); 3349 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); 3350 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); 3351 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); 3352 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page); 3353 int f2fs_recover_xattr_data(struct inode *inode, struct page *page); 3354 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); 3355 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 3356 unsigned int segno, struct f2fs_summary_block *sum); 3357 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3358 int f2fs_build_node_manager(struct f2fs_sb_info *sbi); 3359 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); 3360 int __init f2fs_create_node_manager_caches(void); 3361 void f2fs_destroy_node_manager_caches(void); 3362 3363 /* 3364 * segment.c 3365 */ 3366 bool f2fs_need_SSR(struct f2fs_sb_info *sbi); 3367 void f2fs_register_inmem_page(struct inode *inode, struct page *page); 3368 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); 3369 void f2fs_drop_inmem_pages(struct inode *inode); 3370 void f2fs_drop_inmem_page(struct inode *inode, struct page *page); 3371 int f2fs_commit_inmem_pages(struct inode *inode); 3372 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); 3373 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg); 3374 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); 3375 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); 3376 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); 3377 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); 3378 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); 3379 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); 3380 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); 3381 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); 3382 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); 3383 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, 3384 struct cp_control *cpc); 3385 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); 3386 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi); 3387 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable); 3388 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); 3389 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); 3390 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi); 3391 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi); 3392 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi); 3393 void f2fs_get_new_segment(struct f2fs_sb_info *sbi, 3394 unsigned int *newseg, bool new_sec, int dir); 3395 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type, 3396 unsigned int start, unsigned int end); 3397 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type); 3398 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3399 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3400 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3401 struct cp_control *cpc); 3402 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3403 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3404 block_t blk_addr); 3405 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3406 enum iostat_type io_type); 3407 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3408 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3409 struct f2fs_io_info *fio); 3410 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3411 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3412 block_t old_blkaddr, block_t new_blkaddr, 3413 bool recover_curseg, bool recover_newaddr, 3414 bool from_gc); 3415 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3416 block_t old_addr, block_t new_addr, 3417 unsigned char version, bool recover_curseg, 3418 bool recover_newaddr); 3419 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3420 block_t old_blkaddr, block_t *new_blkaddr, 3421 struct f2fs_summary *sum, int type, 3422 struct f2fs_io_info *fio); 3423 void f2fs_wait_on_page_writeback(struct page *page, 3424 enum page_type type, bool ordered, bool locked); 3425 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3426 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3427 block_t len); 3428 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3429 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3430 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3431 unsigned int val, int alloc); 3432 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3433 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi); 3434 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi); 3435 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3436 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3437 int __init f2fs_create_segment_manager_caches(void); 3438 void f2fs_destroy_segment_manager_caches(void); 3439 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3440 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3441 enum page_type type, enum temp_type temp); 3442 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi, 3443 unsigned int segno); 3444 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi, 3445 unsigned int segno); 3446 3447 /* 3448 * checkpoint.c 3449 */ 3450 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3451 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3452 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3453 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index); 3454 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3455 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3456 block_t blkaddr, int type); 3457 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3458 int type, bool sync); 3459 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3460 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3461 long nr_to_write, enum iostat_type io_type); 3462 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3463 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3464 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3465 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3466 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3467 unsigned int devidx, int type); 3468 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3469 unsigned int devidx, int type); 3470 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3471 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3472 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3473 void f2fs_add_orphan_inode(struct inode *inode); 3474 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3475 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3476 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3477 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3478 void f2fs_remove_dirty_inode(struct inode *inode); 3479 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3480 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type); 3481 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi); 3482 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3483 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3484 int __init f2fs_create_checkpoint_caches(void); 3485 void f2fs_destroy_checkpoint_caches(void); 3486 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi); 3487 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi); 3488 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi); 3489 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi); 3490 3491 /* 3492 * data.c 3493 */ 3494 int __init f2fs_init_bioset(void); 3495 void f2fs_destroy_bioset(void); 3496 int f2fs_init_bio_entry_cache(void); 3497 void f2fs_destroy_bio_entry_cache(void); 3498 void f2fs_submit_bio(struct f2fs_sb_info *sbi, 3499 struct bio *bio, enum page_type type); 3500 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3501 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3502 struct inode *inode, struct page *page, 3503 nid_t ino, enum page_type type); 3504 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi, 3505 struct bio **bio, struct page *page); 3506 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3507 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3508 int f2fs_merge_page_bio(struct f2fs_io_info *fio); 3509 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3510 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3511 block_t blk_addr, struct bio *bio); 3512 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3513 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3514 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3515 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3516 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3517 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3518 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3519 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3520 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3521 int op_flags, bool for_write); 3522 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3523 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3524 bool for_write); 3525 struct page *f2fs_get_new_data_page(struct inode *inode, 3526 struct page *ipage, pgoff_t index, bool new_i_size); 3527 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3528 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3529 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3530 int create, int flag); 3531 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3532 u64 start, u64 len); 3533 int f2fs_encrypt_one_page(struct f2fs_io_info *fio); 3534 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3535 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3536 int f2fs_write_single_data_page(struct page *page, int *submitted, 3537 struct bio **bio, sector_t *last_block, 3538 struct writeback_control *wbc, 3539 enum iostat_type io_type, 3540 int compr_blocks, bool allow_balance); 3541 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3542 unsigned int length); 3543 int f2fs_release_page(struct page *page, gfp_t wait); 3544 #ifdef CONFIG_MIGRATION 3545 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3546 struct page *page, enum migrate_mode mode); 3547 #endif 3548 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3549 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3550 int f2fs_init_post_read_processing(void); 3551 void f2fs_destroy_post_read_processing(void); 3552 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi); 3553 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi); 3554 3555 /* 3556 * gc.c 3557 */ 3558 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3559 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3560 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3561 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force, 3562 unsigned int segno); 3563 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3564 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count); 3565 int __init f2fs_create_garbage_collection_cache(void); 3566 void f2fs_destroy_garbage_collection_cache(void); 3567 3568 /* 3569 * recovery.c 3570 */ 3571 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3572 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3573 3574 /* 3575 * debug.c 3576 */ 3577 #ifdef CONFIG_F2FS_STAT_FS 3578 struct f2fs_stat_info { 3579 struct list_head stat_list; 3580 struct f2fs_sb_info *sbi; 3581 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3582 int main_area_segs, main_area_sections, main_area_zones; 3583 unsigned long long hit_largest, hit_cached, hit_rbtree; 3584 unsigned long long hit_total, total_ext; 3585 int ext_tree, zombie_tree, ext_node; 3586 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3587 int ndirty_data, ndirty_qdata; 3588 int inmem_pages; 3589 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3590 int nats, dirty_nats, sits, dirty_sits; 3591 int free_nids, avail_nids, alloc_nids; 3592 int total_count, utilization; 3593 int bg_gc, nr_wb_cp_data, nr_wb_data; 3594 int nr_rd_data, nr_rd_node, nr_rd_meta; 3595 int nr_dio_read, nr_dio_write; 3596 unsigned int io_skip_bggc, other_skip_bggc; 3597 int nr_flushing, nr_flushed, flush_list_empty; 3598 int nr_discarding, nr_discarded; 3599 int nr_discard_cmd; 3600 unsigned int undiscard_blks; 3601 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt; 3602 unsigned int cur_ckpt_time, peak_ckpt_time; 3603 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3604 int compr_inode; 3605 unsigned long long compr_blocks; 3606 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3607 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3608 unsigned int bimodal, avg_vblocks; 3609 int util_free, util_valid, util_invalid; 3610 int rsvd_segs, overp_segs; 3611 int dirty_count, node_pages, meta_pages; 3612 int prefree_count, call_count, cp_count, bg_cp_count; 3613 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3614 int bg_node_segs, bg_data_segs; 3615 int tot_blks, data_blks, node_blks; 3616 int bg_data_blks, bg_node_blks; 3617 unsigned long long skipped_atomic_files[2]; 3618 int curseg[NR_CURSEG_TYPE]; 3619 int cursec[NR_CURSEG_TYPE]; 3620 int curzone[NR_CURSEG_TYPE]; 3621 unsigned int dirty_seg[NR_CURSEG_TYPE]; 3622 unsigned int full_seg[NR_CURSEG_TYPE]; 3623 unsigned int valid_blks[NR_CURSEG_TYPE]; 3624 3625 unsigned int meta_count[META_MAX]; 3626 unsigned int segment_count[2]; 3627 unsigned int block_count[2]; 3628 unsigned int inplace_count; 3629 unsigned long long base_mem, cache_mem, page_mem; 3630 }; 3631 3632 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3633 { 3634 return (struct f2fs_stat_info *)sbi->stat_info; 3635 } 3636 3637 #define stat_inc_cp_count(si) ((si)->cp_count++) 3638 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3639 #define stat_inc_call_count(si) ((si)->call_count++) 3640 #define stat_inc_bggc_count(si) ((si)->bg_gc++) 3641 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3642 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3643 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3644 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3645 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3646 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3647 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3648 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3649 #define stat_inc_inline_xattr(inode) \ 3650 do { \ 3651 if (f2fs_has_inline_xattr(inode)) \ 3652 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3653 } while (0) 3654 #define stat_dec_inline_xattr(inode) \ 3655 do { \ 3656 if (f2fs_has_inline_xattr(inode)) \ 3657 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3658 } while (0) 3659 #define stat_inc_inline_inode(inode) \ 3660 do { \ 3661 if (f2fs_has_inline_data(inode)) \ 3662 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3663 } while (0) 3664 #define stat_dec_inline_inode(inode) \ 3665 do { \ 3666 if (f2fs_has_inline_data(inode)) \ 3667 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3668 } while (0) 3669 #define stat_inc_inline_dir(inode) \ 3670 do { \ 3671 if (f2fs_has_inline_dentry(inode)) \ 3672 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3673 } while (0) 3674 #define stat_dec_inline_dir(inode) \ 3675 do { \ 3676 if (f2fs_has_inline_dentry(inode)) \ 3677 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3678 } while (0) 3679 #define stat_inc_compr_inode(inode) \ 3680 do { \ 3681 if (f2fs_compressed_file(inode)) \ 3682 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \ 3683 } while (0) 3684 #define stat_dec_compr_inode(inode) \ 3685 do { \ 3686 if (f2fs_compressed_file(inode)) \ 3687 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \ 3688 } while (0) 3689 #define stat_add_compr_blocks(inode, blocks) \ 3690 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3691 #define stat_sub_compr_blocks(inode, blocks) \ 3692 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3693 #define stat_inc_meta_count(sbi, blkaddr) \ 3694 do { \ 3695 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3696 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3697 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3698 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3699 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3700 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3701 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3702 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3703 } while (0) 3704 #define stat_inc_seg_type(sbi, curseg) \ 3705 ((sbi)->segment_count[(curseg)->alloc_type]++) 3706 #define stat_inc_block_count(sbi, curseg) \ 3707 ((sbi)->block_count[(curseg)->alloc_type]++) 3708 #define stat_inc_inplace_blocks(sbi) \ 3709 (atomic_inc(&(sbi)->inplace_count)) 3710 #define stat_update_max_atomic_write(inode) \ 3711 do { \ 3712 int cur = F2FS_I_SB(inode)->atomic_files; \ 3713 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3714 if (cur > max) \ 3715 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3716 } while (0) 3717 #define stat_inc_volatile_write(inode) \ 3718 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3719 #define stat_dec_volatile_write(inode) \ 3720 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3721 #define stat_update_max_volatile_write(inode) \ 3722 do { \ 3723 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3724 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3725 if (cur > max) \ 3726 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3727 } while (0) 3728 #define stat_inc_seg_count(sbi, type, gc_type) \ 3729 do { \ 3730 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3731 si->tot_segs++; \ 3732 if ((type) == SUM_TYPE_DATA) { \ 3733 si->data_segs++; \ 3734 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3735 } else { \ 3736 si->node_segs++; \ 3737 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3738 } \ 3739 } while (0) 3740 3741 #define stat_inc_tot_blk_count(si, blks) \ 3742 ((si)->tot_blks += (blks)) 3743 3744 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3745 do { \ 3746 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3747 stat_inc_tot_blk_count(si, blks); \ 3748 si->data_blks += (blks); \ 3749 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3750 } while (0) 3751 3752 #define stat_inc_node_blk_count(sbi, blks, gc_type) \ 3753 do { \ 3754 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3755 stat_inc_tot_blk_count(si, blks); \ 3756 si->node_blks += (blks); \ 3757 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3758 } while (0) 3759 3760 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3761 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3762 void __init f2fs_create_root_stats(void); 3763 void f2fs_destroy_root_stats(void); 3764 void f2fs_update_sit_info(struct f2fs_sb_info *sbi); 3765 #else 3766 #define stat_inc_cp_count(si) do { } while (0) 3767 #define stat_inc_bg_cp_count(si) do { } while (0) 3768 #define stat_inc_call_count(si) do { } while (0) 3769 #define stat_inc_bggc_count(si) do { } while (0) 3770 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3771 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3772 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3773 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3774 #define stat_inc_total_hit(sbi) do { } while (0) 3775 #define stat_inc_rbtree_node_hit(sbi) do { } while (0) 3776 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3777 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3778 #define stat_inc_inline_xattr(inode) do { } while (0) 3779 #define stat_dec_inline_xattr(inode) do { } while (0) 3780 #define stat_inc_inline_inode(inode) do { } while (0) 3781 #define stat_dec_inline_inode(inode) do { } while (0) 3782 #define stat_inc_inline_dir(inode) do { } while (0) 3783 #define stat_dec_inline_dir(inode) do { } while (0) 3784 #define stat_inc_compr_inode(inode) do { } while (0) 3785 #define stat_dec_compr_inode(inode) do { } while (0) 3786 #define stat_add_compr_blocks(inode, blocks) do { } while (0) 3787 #define stat_sub_compr_blocks(inode, blocks) do { } while (0) 3788 #define stat_update_max_atomic_write(inode) do { } while (0) 3789 #define stat_inc_volatile_write(inode) do { } while (0) 3790 #define stat_dec_volatile_write(inode) do { } while (0) 3791 #define stat_update_max_volatile_write(inode) do { } while (0) 3792 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3793 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3794 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3795 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3796 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3797 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3798 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3799 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3800 3801 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3802 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3803 static inline void __init f2fs_create_root_stats(void) { } 3804 static inline void f2fs_destroy_root_stats(void) { } 3805 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {} 3806 #endif 3807 3808 extern const struct file_operations f2fs_dir_operations; 3809 extern const struct file_operations f2fs_file_operations; 3810 extern const struct inode_operations f2fs_file_inode_operations; 3811 extern const struct address_space_operations f2fs_dblock_aops; 3812 extern const struct address_space_operations f2fs_node_aops; 3813 extern const struct address_space_operations f2fs_meta_aops; 3814 extern const struct inode_operations f2fs_dir_inode_operations; 3815 extern const struct inode_operations f2fs_symlink_inode_operations; 3816 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3817 extern const struct inode_operations f2fs_special_inode_operations; 3818 extern struct kmem_cache *f2fs_inode_entry_slab; 3819 3820 /* 3821 * inline.c 3822 */ 3823 bool f2fs_may_inline_data(struct inode *inode); 3824 bool f2fs_may_inline_dentry(struct inode *inode); 3825 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3826 void f2fs_truncate_inline_inode(struct inode *inode, 3827 struct page *ipage, u64 from); 3828 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3829 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3830 int f2fs_convert_inline_inode(struct inode *inode); 3831 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry); 3832 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3833 int f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3834 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3835 const struct f2fs_filename *fname, 3836 struct page **res_page); 3837 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3838 struct page *ipage); 3839 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname, 3840 struct inode *inode, nid_t ino, umode_t mode); 3841 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3842 struct page *page, struct inode *dir, 3843 struct inode *inode); 3844 bool f2fs_empty_inline_dir(struct inode *dir); 3845 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3846 struct fscrypt_str *fstr); 3847 int f2fs_inline_data_fiemap(struct inode *inode, 3848 struct fiemap_extent_info *fieinfo, 3849 __u64 start, __u64 len); 3850 3851 /* 3852 * shrinker.c 3853 */ 3854 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3855 struct shrink_control *sc); 3856 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3857 struct shrink_control *sc); 3858 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3859 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3860 3861 /* 3862 * extent_cache.c 3863 */ 3864 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3865 struct rb_entry *cached_re, unsigned int ofs); 3866 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi, 3867 struct rb_root_cached *root, 3868 struct rb_node **parent, 3869 unsigned long long key, bool *left_most); 3870 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3871 struct rb_root_cached *root, 3872 struct rb_node **parent, 3873 unsigned int ofs, bool *leftmost); 3874 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3875 struct rb_entry *cached_re, unsigned int ofs, 3876 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3877 struct rb_node ***insert_p, struct rb_node **insert_parent, 3878 bool force, bool *leftmost); 3879 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3880 struct rb_root_cached *root, bool check_key); 3881 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3882 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage); 3883 void f2fs_drop_extent_tree(struct inode *inode); 3884 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3885 void f2fs_destroy_extent_tree(struct inode *inode); 3886 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3887 struct extent_info *ei); 3888 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3889 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3890 pgoff_t fofs, block_t blkaddr, unsigned int len); 3891 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3892 int __init f2fs_create_extent_cache(void); 3893 void f2fs_destroy_extent_cache(void); 3894 3895 /* 3896 * sysfs.c 3897 */ 3898 int __init f2fs_init_sysfs(void); 3899 void f2fs_exit_sysfs(void); 3900 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3901 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3902 3903 /* verity.c */ 3904 extern const struct fsverity_operations f2fs_verityops; 3905 3906 /* 3907 * crypto support 3908 */ 3909 static inline bool f2fs_encrypted_file(struct inode *inode) 3910 { 3911 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode); 3912 } 3913 3914 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3915 { 3916 #ifdef CONFIG_FS_ENCRYPTION 3917 file_set_encrypt(inode); 3918 f2fs_set_inode_flags(inode); 3919 #endif 3920 } 3921 3922 /* 3923 * Returns true if the reads of the inode's data need to undergo some 3924 * postprocessing step, like decryption or authenticity verification. 3925 */ 3926 static inline bool f2fs_post_read_required(struct inode *inode) 3927 { 3928 return f2fs_encrypted_file(inode) || fsverity_active(inode) || 3929 f2fs_compressed_file(inode); 3930 } 3931 3932 /* 3933 * compress.c 3934 */ 3935 #ifdef CONFIG_F2FS_FS_COMPRESSION 3936 bool f2fs_is_compressed_page(struct page *page); 3937 struct page *f2fs_compress_control_page(struct page *page); 3938 int f2fs_prepare_compress_overwrite(struct inode *inode, 3939 struct page **pagep, pgoff_t index, void **fsdata); 3940 bool f2fs_compress_write_end(struct inode *inode, void *fsdata, 3941 pgoff_t index, unsigned copied); 3942 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock); 3943 void f2fs_compress_write_end_io(struct bio *bio, struct page *page); 3944 bool f2fs_is_compress_backend_ready(struct inode *inode); 3945 int f2fs_init_compress_mempool(void); 3946 void f2fs_destroy_compress_mempool(void); 3947 void f2fs_end_read_compressed_page(struct page *page, bool failed); 3948 bool f2fs_cluster_is_empty(struct compress_ctx *cc); 3949 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); 3950 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); 3951 int f2fs_write_multi_pages(struct compress_ctx *cc, 3952 int *submitted, 3953 struct writeback_control *wbc, 3954 enum iostat_type io_type); 3955 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index); 3956 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret, 3957 unsigned nr_pages, sector_t *last_block_in_bio, 3958 bool is_readahead, bool for_write); 3959 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc); 3960 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed); 3961 void f2fs_put_page_dic(struct page *page); 3962 int f2fs_init_compress_ctx(struct compress_ctx *cc); 3963 void f2fs_destroy_compress_ctx(struct compress_ctx *cc); 3964 void f2fs_init_compress_info(struct f2fs_sb_info *sbi); 3965 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi); 3966 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi); 3967 int __init f2fs_init_compress_cache(void); 3968 void f2fs_destroy_compress_cache(void); 3969 #define inc_compr_inode_stat(inode) \ 3970 do { \ 3971 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \ 3972 sbi->compr_new_inode++; \ 3973 } while (0) 3974 #define add_compr_block_stat(inode, blocks) \ 3975 do { \ 3976 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \ 3977 int diff = F2FS_I(inode)->i_cluster_size - blocks; \ 3978 sbi->compr_written_block += blocks; \ 3979 sbi->compr_saved_block += diff; \ 3980 } while (0) 3981 #else 3982 static inline bool f2fs_is_compressed_page(struct page *page) { return false; } 3983 static inline bool f2fs_is_compress_backend_ready(struct inode *inode) 3984 { 3985 if (!f2fs_compressed_file(inode)) 3986 return true; 3987 /* not support compression */ 3988 return false; 3989 } 3990 static inline struct page *f2fs_compress_control_page(struct page *page) 3991 { 3992 WARN_ON_ONCE(1); 3993 return ERR_PTR(-EINVAL); 3994 } 3995 static inline int f2fs_init_compress_mempool(void) { return 0; } 3996 static inline void f2fs_destroy_compress_mempool(void) { } 3997 static inline void f2fs_end_read_compressed_page(struct page *page, bool failed) 3998 { 3999 WARN_ON_ONCE(1); 4000 } 4001 static inline void f2fs_put_page_dic(struct page *page) 4002 { 4003 WARN_ON_ONCE(1); 4004 } 4005 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; } 4006 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { } 4007 static inline int __init f2fs_init_compress_cache(void) { return 0; } 4008 static inline void f2fs_destroy_compress_cache(void) { } 4009 #define inc_compr_inode_stat(inode) do { } while (0) 4010 #endif 4011 4012 static inline void set_compress_context(struct inode *inode) 4013 { 4014 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4015 4016 F2FS_I(inode)->i_compress_algorithm = 4017 F2FS_OPTION(sbi).compress_algorithm; 4018 F2FS_I(inode)->i_log_cluster_size = 4019 F2FS_OPTION(sbi).compress_log_size; 4020 F2FS_I(inode)->i_compress_flag = 4021 F2FS_OPTION(sbi).compress_chksum ? 4022 1 << COMPRESS_CHKSUM : 0; 4023 F2FS_I(inode)->i_cluster_size = 4024 1 << F2FS_I(inode)->i_log_cluster_size; 4025 if (F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 && 4026 F2FS_OPTION(sbi).compress_level) 4027 F2FS_I(inode)->i_compress_flag |= 4028 F2FS_OPTION(sbi).compress_level << 4029 COMPRESS_LEVEL_OFFSET; 4030 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL; 4031 set_inode_flag(inode, FI_COMPRESSED_FILE); 4032 stat_inc_compr_inode(inode); 4033 inc_compr_inode_stat(inode); 4034 f2fs_mark_inode_dirty_sync(inode, true); 4035 } 4036 4037 static inline bool f2fs_disable_compressed_file(struct inode *inode) 4038 { 4039 struct f2fs_inode_info *fi = F2FS_I(inode); 4040 4041 if (!f2fs_compressed_file(inode)) 4042 return true; 4043 if (S_ISREG(inode->i_mode) && 4044 (get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks))) 4045 return false; 4046 4047 fi->i_flags &= ~F2FS_COMPR_FL; 4048 stat_dec_compr_inode(inode); 4049 clear_inode_flag(inode, FI_COMPRESSED_FILE); 4050 f2fs_mark_inode_dirty_sync(inode, true); 4051 return true; 4052 } 4053 4054 #define F2FS_FEATURE_FUNCS(name, flagname) \ 4055 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 4056 { \ 4057 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 4058 } 4059 4060 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 4061 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 4062 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 4063 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 4064 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 4065 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 4066 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 4067 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 4068 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 4069 F2FS_FEATURE_FUNCS(verity, VERITY); 4070 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 4071 F2FS_FEATURE_FUNCS(casefold, CASEFOLD); 4072 F2FS_FEATURE_FUNCS(compression, COMPRESSION); 4073 4074 #ifdef CONFIG_BLK_DEV_ZONED 4075 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi, 4076 block_t blkaddr) 4077 { 4078 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 4079 4080 return test_bit(zno, FDEV(devi).blkz_seq); 4081 } 4082 #endif 4083 4084 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 4085 { 4086 return f2fs_sb_has_blkzoned(sbi); 4087 } 4088 4089 static inline bool f2fs_bdev_support_discard(struct block_device *bdev) 4090 { 4091 return blk_queue_discard(bdev_get_queue(bdev)) || 4092 bdev_is_zoned(bdev); 4093 } 4094 4095 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 4096 { 4097 int i; 4098 4099 if (!f2fs_is_multi_device(sbi)) 4100 return f2fs_bdev_support_discard(sbi->sb->s_bdev); 4101 4102 for (i = 0; i < sbi->s_ndevs; i++) 4103 if (f2fs_bdev_support_discard(FDEV(i).bdev)) 4104 return true; 4105 return false; 4106 } 4107 4108 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 4109 { 4110 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 4111 f2fs_hw_should_discard(sbi); 4112 } 4113 4114 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi) 4115 { 4116 int i; 4117 4118 if (!f2fs_is_multi_device(sbi)) 4119 return bdev_read_only(sbi->sb->s_bdev); 4120 4121 for (i = 0; i < sbi->s_ndevs; i++) 4122 if (bdev_read_only(FDEV(i).bdev)) 4123 return true; 4124 return false; 4125 } 4126 4127 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi) 4128 { 4129 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS; 4130 } 4131 4132 static inline bool f2fs_may_compress(struct inode *inode) 4133 { 4134 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) || 4135 f2fs_is_atomic_file(inode) || 4136 f2fs_is_volatile_file(inode)) 4137 return false; 4138 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode); 4139 } 4140 4141 static inline void f2fs_i_compr_blocks_update(struct inode *inode, 4142 u64 blocks, bool add) 4143 { 4144 int diff = F2FS_I(inode)->i_cluster_size - blocks; 4145 struct f2fs_inode_info *fi = F2FS_I(inode); 4146 4147 /* don't update i_compr_blocks if saved blocks were released */ 4148 if (!add && !atomic_read(&fi->i_compr_blocks)) 4149 return; 4150 4151 if (add) { 4152 atomic_add(diff, &fi->i_compr_blocks); 4153 stat_add_compr_blocks(inode, diff); 4154 } else { 4155 atomic_sub(diff, &fi->i_compr_blocks); 4156 stat_sub_compr_blocks(inode, diff); 4157 } 4158 f2fs_mark_inode_dirty_sync(inode, true); 4159 } 4160 4161 static inline int block_unaligned_IO(struct inode *inode, 4162 struct kiocb *iocb, struct iov_iter *iter) 4163 { 4164 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 4165 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 4166 loff_t offset = iocb->ki_pos; 4167 unsigned long align = offset | iov_iter_alignment(iter); 4168 4169 return align & blocksize_mask; 4170 } 4171 4172 static inline int allow_outplace_dio(struct inode *inode, 4173 struct kiocb *iocb, struct iov_iter *iter) 4174 { 4175 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4176 int rw = iov_iter_rw(iter); 4177 4178 return (f2fs_lfs_mode(sbi) && (rw == WRITE) && 4179 !block_unaligned_IO(inode, iocb, iter)); 4180 } 4181 4182 static inline bool f2fs_force_buffered_io(struct inode *inode, 4183 struct kiocb *iocb, struct iov_iter *iter) 4184 { 4185 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4186 int rw = iov_iter_rw(iter); 4187 4188 if (f2fs_post_read_required(inode)) 4189 return true; 4190 if (f2fs_is_multi_device(sbi)) 4191 return true; 4192 /* 4193 * for blkzoned device, fallback direct IO to buffered IO, so 4194 * all IOs can be serialized by log-structured write. 4195 */ 4196 if (f2fs_sb_has_blkzoned(sbi)) 4197 return true; 4198 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) { 4199 if (block_unaligned_IO(inode, iocb, iter)) 4200 return true; 4201 if (F2FS_IO_ALIGNED(sbi)) 4202 return true; 4203 } 4204 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) 4205 return true; 4206 4207 return false; 4208 } 4209 4210 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx) 4211 { 4212 return fsverity_active(inode) && 4213 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE); 4214 } 4215 4216 #ifdef CONFIG_F2FS_FAULT_INJECTION 4217 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 4218 unsigned int type); 4219 #else 4220 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 4221 #endif 4222 4223 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 4224 { 4225 #ifdef CONFIG_QUOTA 4226 if (f2fs_sb_has_quota_ino(sbi)) 4227 return true; 4228 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 4229 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 4230 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 4231 return true; 4232 #endif 4233 return false; 4234 } 4235 4236 #define EFSBADCRC EBADMSG /* Bad CRC detected */ 4237 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ 4238 4239 #endif /* _LINUX_F2FS_H */ 4240