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 #define F2FS_MOUNT_GC_MERGE 0x20000000 101 102 #define F2FS_OPTION(sbi) ((sbi)->mount_opt) 103 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) 104 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option) 105 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option) 106 107 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 108 typecheck(unsigned long long, b) && \ 109 ((long long)((a) - (b)) > 0)) 110 111 typedef u32 block_t; /* 112 * should not change u32, since it is the on-disk block 113 * address format, __le32. 114 */ 115 typedef u32 nid_t; 116 117 #define COMPRESS_EXT_NUM 16 118 119 struct f2fs_mount_info { 120 unsigned int opt; 121 int write_io_size_bits; /* Write IO size bits */ 122 block_t root_reserved_blocks; /* root reserved blocks */ 123 kuid_t s_resuid; /* reserved blocks for uid */ 124 kgid_t s_resgid; /* reserved blocks for gid */ 125 int active_logs; /* # of active logs */ 126 int inline_xattr_size; /* inline xattr size */ 127 #ifdef CONFIG_F2FS_FAULT_INJECTION 128 struct f2fs_fault_info fault_info; /* For fault injection */ 129 #endif 130 #ifdef CONFIG_QUOTA 131 /* Names of quota files with journalled quota */ 132 char *s_qf_names[MAXQUOTAS]; 133 int s_jquota_fmt; /* Format of quota to use */ 134 #endif 135 /* For which write hints are passed down to block layer */ 136 int whint_mode; 137 int alloc_mode; /* segment allocation policy */ 138 int fsync_mode; /* fsync policy */ 139 int fs_mode; /* fs mode: LFS or ADAPTIVE */ 140 int bggc_mode; /* bggc mode: off, on or sync */ 141 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */ 142 block_t unusable_cap_perc; /* percentage for cap */ 143 block_t unusable_cap; /* Amount of space allowed to be 144 * unusable when disabling checkpoint 145 */ 146 147 /* For compression */ 148 unsigned char compress_algorithm; /* algorithm type */ 149 unsigned char compress_log_size; /* cluster log size */ 150 unsigned char compress_level; /* compress level */ 151 bool compress_chksum; /* compressed data chksum */ 152 unsigned char compress_ext_cnt; /* extension count */ 153 int compress_mode; /* compression mode */ 154 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */ 155 }; 156 157 #define F2FS_FEATURE_ENCRYPT 0x0001 158 #define F2FS_FEATURE_BLKZONED 0x0002 159 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004 160 #define F2FS_FEATURE_EXTRA_ATTR 0x0008 161 #define F2FS_FEATURE_PRJQUOTA 0x0010 162 #define F2FS_FEATURE_INODE_CHKSUM 0x0020 163 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 164 #define F2FS_FEATURE_QUOTA_INO 0x0080 165 #define F2FS_FEATURE_INODE_CRTIME 0x0100 166 #define F2FS_FEATURE_LOST_FOUND 0x0200 167 #define F2FS_FEATURE_VERITY 0x0400 168 #define F2FS_FEATURE_SB_CHKSUM 0x0800 169 #define F2FS_FEATURE_CASEFOLD 0x1000 170 #define F2FS_FEATURE_COMPRESSION 0x2000 171 172 #define __F2FS_HAS_FEATURE(raw_super, mask) \ 173 ((raw_super->feature & cpu_to_le32(mask)) != 0) 174 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask) 175 #define F2FS_SET_FEATURE(sbi, mask) \ 176 (sbi->raw_super->feature |= cpu_to_le32(mask)) 177 #define F2FS_CLEAR_FEATURE(sbi, mask) \ 178 (sbi->raw_super->feature &= ~cpu_to_le32(mask)) 179 180 /* 181 * Default values for user and/or group using reserved blocks 182 */ 183 #define F2FS_DEF_RESUID 0 184 #define F2FS_DEF_RESGID 0 185 186 /* 187 * For checkpoint manager 188 */ 189 enum { 190 NAT_BITMAP, 191 SIT_BITMAP 192 }; 193 194 #define CP_UMOUNT 0x00000001 195 #define CP_FASTBOOT 0x00000002 196 #define CP_SYNC 0x00000004 197 #define CP_RECOVERY 0x00000008 198 #define CP_DISCARD 0x00000010 199 #define CP_TRIMMED 0x00000020 200 #define CP_PAUSE 0x00000040 201 #define CP_RESIZE 0x00000080 202 203 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) 204 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */ 205 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */ 206 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */ 207 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */ 208 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */ 209 #define DEF_CP_INTERVAL 60 /* 60 secs */ 210 #define DEF_IDLE_INTERVAL 5 /* 5 secs */ 211 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */ 212 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */ 213 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ 214 215 struct cp_control { 216 int reason; 217 __u64 trim_start; 218 __u64 trim_end; 219 __u64 trim_minlen; 220 }; 221 222 /* 223 * indicate meta/data type 224 */ 225 enum { 226 META_CP, 227 META_NAT, 228 META_SIT, 229 META_SSA, 230 META_MAX, 231 META_POR, 232 DATA_GENERIC, /* check range only */ 233 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */ 234 DATA_GENERIC_ENHANCE_READ, /* 235 * strong check on range and segment 236 * bitmap but no warning due to race 237 * condition of read on truncated area 238 * by extent_cache 239 */ 240 META_GENERIC, 241 }; 242 243 /* for the list of ino */ 244 enum { 245 ORPHAN_INO, /* for orphan ino list */ 246 APPEND_INO, /* for append ino list */ 247 UPDATE_INO, /* for update ino list */ 248 TRANS_DIR_INO, /* for trasactions dir ino list */ 249 FLUSH_INO, /* for multiple device flushing */ 250 MAX_INO_ENTRY, /* max. list */ 251 }; 252 253 struct ino_entry { 254 struct list_head list; /* list head */ 255 nid_t ino; /* inode number */ 256 unsigned int dirty_device; /* dirty device bitmap */ 257 }; 258 259 /* for the list of inodes to be GCed */ 260 struct inode_entry { 261 struct list_head list; /* list head */ 262 struct inode *inode; /* vfs inode pointer */ 263 }; 264 265 struct fsync_node_entry { 266 struct list_head list; /* list head */ 267 struct page *page; /* warm node page pointer */ 268 unsigned int seq_id; /* sequence id */ 269 }; 270 271 struct ckpt_req { 272 struct completion wait; /* completion for checkpoint done */ 273 struct llist_node llnode; /* llist_node to be linked in wait queue */ 274 int ret; /* return code of checkpoint */ 275 ktime_t queue_time; /* request queued time */ 276 }; 277 278 struct ckpt_req_control { 279 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */ 280 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */ 281 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */ 282 atomic_t issued_ckpt; /* # of actually issued ckpts */ 283 atomic_t total_ckpt; /* # of total ckpts */ 284 atomic_t queued_ckpt; /* # of queued ckpts */ 285 struct llist_head issue_list; /* list for command issue */ 286 spinlock_t stat_lock; /* lock for below checkpoint time stats */ 287 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */ 288 unsigned int peak_time; /* peak wait time in msec until now */ 289 }; 290 291 /* for the bitmap indicate blocks to be discarded */ 292 struct discard_entry { 293 struct list_head list; /* list head */ 294 block_t start_blkaddr; /* start blockaddr of current segment */ 295 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ 296 }; 297 298 /* default discard granularity of inner discard thread, unit: block count */ 299 #define DEFAULT_DISCARD_GRANULARITY 16 300 301 /* max discard pend list number */ 302 #define MAX_PLIST_NUM 512 303 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ 304 (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) 305 306 enum { 307 D_PREP, /* initial */ 308 D_PARTIAL, /* partially submitted */ 309 D_SUBMIT, /* all submitted */ 310 D_DONE, /* finished */ 311 }; 312 313 struct discard_info { 314 block_t lstart; /* logical start address */ 315 block_t len; /* length */ 316 block_t start; /* actual start address in dev */ 317 }; 318 319 struct discard_cmd { 320 struct rb_node rb_node; /* rb node located in rb-tree */ 321 union { 322 struct { 323 block_t lstart; /* logical start address */ 324 block_t len; /* length */ 325 block_t start; /* actual start address in dev */ 326 }; 327 struct discard_info di; /* discard info */ 328 329 }; 330 struct list_head list; /* command list */ 331 struct completion wait; /* compleation */ 332 struct block_device *bdev; /* bdev */ 333 unsigned short ref; /* reference count */ 334 unsigned char state; /* state */ 335 unsigned char queued; /* queued discard */ 336 int error; /* bio error */ 337 spinlock_t lock; /* for state/bio_ref updating */ 338 unsigned short bio_ref; /* bio reference count */ 339 }; 340 341 enum { 342 DPOLICY_BG, 343 DPOLICY_FORCE, 344 DPOLICY_FSTRIM, 345 DPOLICY_UMOUNT, 346 MAX_DPOLICY, 347 }; 348 349 struct discard_policy { 350 int type; /* type of discard */ 351 unsigned int min_interval; /* used for candidates exist */ 352 unsigned int mid_interval; /* used for device busy */ 353 unsigned int max_interval; /* used for candidates not exist */ 354 unsigned int max_requests; /* # of discards issued per round */ 355 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ 356 bool io_aware; /* issue discard in idle time */ 357 bool sync; /* submit discard with REQ_SYNC flag */ 358 bool ordered; /* issue discard by lba order */ 359 bool timeout; /* discard timeout for put_super */ 360 unsigned int granularity; /* discard granularity */ 361 }; 362 363 struct discard_cmd_control { 364 struct task_struct *f2fs_issue_discard; /* discard thread */ 365 struct list_head entry_list; /* 4KB discard entry list */ 366 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ 367 struct list_head wait_list; /* store on-flushing entries */ 368 struct list_head fstrim_list; /* in-flight discard from fstrim */ 369 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ 370 unsigned int discard_wake; /* to wake up discard thread */ 371 struct mutex cmd_lock; 372 unsigned int nr_discards; /* # of discards in the list */ 373 unsigned int max_discards; /* max. discards to be issued */ 374 unsigned int discard_granularity; /* discard granularity */ 375 unsigned int undiscard_blks; /* # of undiscard blocks */ 376 unsigned int next_pos; /* next discard position */ 377 atomic_t issued_discard; /* # of issued discard */ 378 atomic_t queued_discard; /* # of queued discard */ 379 atomic_t discard_cmd_cnt; /* # of cached cmd count */ 380 struct rb_root_cached root; /* root of discard rb-tree */ 381 bool rbtree_check; /* config for consistence check */ 382 }; 383 384 /* for the list of fsync inodes, used only during recovery */ 385 struct fsync_inode_entry { 386 struct list_head list; /* list head */ 387 struct inode *inode; /* vfs inode pointer */ 388 block_t blkaddr; /* block address locating the last fsync */ 389 block_t last_dentry; /* block address locating the last dentry */ 390 }; 391 392 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) 393 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) 394 395 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) 396 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) 397 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) 398 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) 399 400 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) 401 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) 402 403 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) 404 { 405 int before = nats_in_cursum(journal); 406 407 journal->n_nats = cpu_to_le16(before + i); 408 return before; 409 } 410 411 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) 412 { 413 int before = sits_in_cursum(journal); 414 415 journal->n_sits = cpu_to_le16(before + i); 416 return before; 417 } 418 419 static inline bool __has_cursum_space(struct f2fs_journal *journal, 420 int size, int type) 421 { 422 if (type == NAT_JOURNAL) 423 return size <= MAX_NAT_JENTRIES(journal); 424 return size <= MAX_SIT_JENTRIES(journal); 425 } 426 427 /* for inline stuff */ 428 #define DEF_INLINE_RESERVED_SIZE 1 429 static inline int get_extra_isize(struct inode *inode); 430 static inline int get_inline_xattr_addrs(struct inode *inode); 431 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 432 (CUR_ADDRS_PER_INODE(inode) - \ 433 get_inline_xattr_addrs(inode) - \ 434 DEF_INLINE_RESERVED_SIZE)) 435 436 /* for inline dir */ 437 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 438 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 439 BITS_PER_BYTE + 1)) 440 #define INLINE_DENTRY_BITMAP_SIZE(inode) \ 441 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE) 442 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 443 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 444 NR_INLINE_DENTRY(inode) + \ 445 INLINE_DENTRY_BITMAP_SIZE(inode))) 446 447 /* 448 * For INODE and NODE manager 449 */ 450 /* for directory operations */ 451 452 struct f2fs_filename { 453 /* 454 * The filename the user specified. This is NULL for some 455 * filesystem-internal operations, e.g. converting an inline directory 456 * to a non-inline one, or roll-forward recovering an encrypted dentry. 457 */ 458 const struct qstr *usr_fname; 459 460 /* 461 * The on-disk filename. For encrypted directories, this is encrypted. 462 * This may be NULL for lookups in an encrypted dir without the key. 463 */ 464 struct fscrypt_str disk_name; 465 466 /* The dirhash of this filename */ 467 f2fs_hash_t hash; 468 469 #ifdef CONFIG_FS_ENCRYPTION 470 /* 471 * For lookups in encrypted directories: either the buffer backing 472 * disk_name, or a buffer that holds the decoded no-key name. 473 */ 474 struct fscrypt_str crypto_buf; 475 #endif 476 #ifdef CONFIG_UNICODE 477 /* 478 * For casefolded directories: the casefolded name, but it's left NULL 479 * if the original name is not valid Unicode, if the directory is both 480 * casefolded and encrypted and its encryption key is unavailable, or if 481 * the filesystem is doing an internal operation where usr_fname is also 482 * NULL. In all these cases we fall back to treating the name as an 483 * opaque byte sequence. 484 */ 485 struct fscrypt_str cf_name; 486 #endif 487 }; 488 489 struct f2fs_dentry_ptr { 490 struct inode *inode; 491 void *bitmap; 492 struct f2fs_dir_entry *dentry; 493 __u8 (*filename)[F2FS_SLOT_LEN]; 494 int max; 495 int nr_bitmap; 496 }; 497 498 static inline void make_dentry_ptr_block(struct inode *inode, 499 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 500 { 501 d->inode = inode; 502 d->max = NR_DENTRY_IN_BLOCK; 503 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 504 d->bitmap = t->dentry_bitmap; 505 d->dentry = t->dentry; 506 d->filename = t->filename; 507 } 508 509 static inline void make_dentry_ptr_inline(struct inode *inode, 510 struct f2fs_dentry_ptr *d, void *t) 511 { 512 int entry_cnt = NR_INLINE_DENTRY(inode); 513 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 514 int reserved_size = INLINE_RESERVED_SIZE(inode); 515 516 d->inode = inode; 517 d->max = entry_cnt; 518 d->nr_bitmap = bitmap_size; 519 d->bitmap = t; 520 d->dentry = t + bitmap_size + reserved_size; 521 d->filename = t + bitmap_size + reserved_size + 522 SIZE_OF_DIR_ENTRY * entry_cnt; 523 } 524 525 /* 526 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 527 * as its node offset to distinguish from index node blocks. 528 * But some bits are used to mark the node block. 529 */ 530 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 531 >> OFFSET_BIT_SHIFT) 532 enum { 533 ALLOC_NODE, /* allocate a new node page if needed */ 534 LOOKUP_NODE, /* look up a node without readahead */ 535 LOOKUP_NODE_RA, /* 536 * look up a node with readahead called 537 * by get_data_block. 538 */ 539 }; 540 541 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 542 543 /* congestion wait timeout value, default: 20ms */ 544 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20)) 545 546 /* maximum retry quota flush count */ 547 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 548 549 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 550 551 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 552 553 /* for in-memory extent cache entry */ 554 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 555 556 /* number of extent info in extent cache we try to shrink */ 557 #define EXTENT_CACHE_SHRINK_NUMBER 128 558 559 struct rb_entry { 560 struct rb_node rb_node; /* rb node located in rb-tree */ 561 union { 562 struct { 563 unsigned int ofs; /* start offset of the entry */ 564 unsigned int len; /* length of the entry */ 565 }; 566 unsigned long long key; /* 64-bits key */ 567 } __packed; 568 }; 569 570 struct extent_info { 571 unsigned int fofs; /* start offset in a file */ 572 unsigned int len; /* length of the extent */ 573 u32 blk; /* start block address of the extent */ 574 }; 575 576 struct extent_node { 577 struct rb_node rb_node; /* rb node located in rb-tree */ 578 struct extent_info ei; /* extent info */ 579 struct list_head list; /* node in global extent list of sbi */ 580 struct extent_tree *et; /* extent tree pointer */ 581 }; 582 583 struct extent_tree { 584 nid_t ino; /* inode number */ 585 struct rb_root_cached root; /* root of extent info rb-tree */ 586 struct extent_node *cached_en; /* recently accessed extent node */ 587 struct extent_info largest; /* largested extent info */ 588 struct list_head list; /* to be used by sbi->zombie_list */ 589 rwlock_t lock; /* protect extent info rb-tree */ 590 atomic_t node_cnt; /* # of extent node in rb-tree*/ 591 bool largest_updated; /* largest extent updated */ 592 }; 593 594 /* 595 * This structure is taken from ext4_map_blocks. 596 * 597 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 598 */ 599 #define F2FS_MAP_NEW (1 << BH_New) 600 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 601 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 602 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 603 F2FS_MAP_UNWRITTEN) 604 605 struct f2fs_map_blocks { 606 block_t m_pblk; 607 block_t m_lblk; 608 unsigned int m_len; 609 unsigned int m_flags; 610 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 611 pgoff_t *m_next_extent; /* point to next possible extent */ 612 int m_seg_type; 613 bool m_may_create; /* indicate it is from write path */ 614 }; 615 616 /* for flag in get_data_block */ 617 enum { 618 F2FS_GET_BLOCK_DEFAULT, 619 F2FS_GET_BLOCK_FIEMAP, 620 F2FS_GET_BLOCK_BMAP, 621 F2FS_GET_BLOCK_DIO, 622 F2FS_GET_BLOCK_PRE_DIO, 623 F2FS_GET_BLOCK_PRE_AIO, 624 F2FS_GET_BLOCK_PRECACHE, 625 }; 626 627 /* 628 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 629 */ 630 #define FADVISE_COLD_BIT 0x01 631 #define FADVISE_LOST_PINO_BIT 0x02 632 #define FADVISE_ENCRYPT_BIT 0x04 633 #define FADVISE_ENC_NAME_BIT 0x08 634 #define FADVISE_KEEP_SIZE_BIT 0x10 635 #define FADVISE_HOT_BIT 0x20 636 #define FADVISE_VERITY_BIT 0x40 637 638 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 639 640 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 641 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 642 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 643 644 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 645 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 646 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 647 648 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 649 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 650 651 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 652 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 653 654 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 655 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 656 657 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 658 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 659 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 660 661 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT) 662 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT) 663 664 #define DEF_DIR_LEVEL 0 665 666 enum { 667 GC_FAILURE_PIN, 668 GC_FAILURE_ATOMIC, 669 MAX_GC_FAILURE 670 }; 671 672 /* used for f2fs_inode_info->flags */ 673 enum { 674 FI_NEW_INODE, /* indicate newly allocated inode */ 675 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 676 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 677 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 678 FI_INC_LINK, /* need to increment i_nlink */ 679 FI_ACL_MODE, /* indicate acl mode */ 680 FI_NO_ALLOC, /* should not allocate any blocks */ 681 FI_FREE_NID, /* free allocated nide */ 682 FI_NO_EXTENT, /* not to use the extent cache */ 683 FI_INLINE_XATTR, /* used for inline xattr */ 684 FI_INLINE_DATA, /* used for inline data*/ 685 FI_INLINE_DENTRY, /* used for inline dentry */ 686 FI_APPEND_WRITE, /* inode has appended data */ 687 FI_UPDATE_WRITE, /* inode has in-place-update data */ 688 FI_NEED_IPU, /* used for ipu per file */ 689 FI_ATOMIC_FILE, /* indicate atomic file */ 690 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 691 FI_VOLATILE_FILE, /* indicate volatile file */ 692 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 693 FI_DROP_CACHE, /* drop dirty page cache */ 694 FI_DATA_EXIST, /* indicate data exists */ 695 FI_INLINE_DOTS, /* indicate inline dot dentries */ 696 FI_DO_DEFRAG, /* indicate defragment is running */ 697 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 698 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 699 FI_HOT_DATA, /* indicate file is hot */ 700 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 701 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 702 FI_PIN_FILE, /* indicate file should not be gced */ 703 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 704 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */ 705 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */ 706 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */ 707 FI_MMAP_FILE, /* indicate file was mmapped */ 708 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */ 709 FI_MAX, /* max flag, never be used */ 710 }; 711 712 struct f2fs_inode_info { 713 struct inode vfs_inode; /* serve a vfs inode */ 714 unsigned long i_flags; /* keep an inode flags for ioctl */ 715 unsigned char i_advise; /* use to give file attribute hints */ 716 unsigned char i_dir_level; /* use for dentry level for large dir */ 717 unsigned int i_current_depth; /* only for directory depth */ 718 /* for gc failure statistic */ 719 unsigned int i_gc_failures[MAX_GC_FAILURE]; 720 unsigned int i_pino; /* parent inode number */ 721 umode_t i_acl_mode; /* keep file acl mode temporarily */ 722 723 /* Use below internally in f2fs*/ 724 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */ 725 struct rw_semaphore i_sem; /* protect fi info */ 726 atomic_t dirty_pages; /* # of dirty pages */ 727 f2fs_hash_t chash; /* hash value of given file name */ 728 unsigned int clevel; /* maximum level of given file name */ 729 struct task_struct *task; /* lookup and create consistency */ 730 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 731 nid_t i_xattr_nid; /* node id that contains xattrs */ 732 loff_t last_disk_size; /* lastly written file size */ 733 spinlock_t i_size_lock; /* protect last_disk_size */ 734 735 #ifdef CONFIG_QUOTA 736 struct dquot *i_dquot[MAXQUOTAS]; 737 738 /* quota space reservation, managed internally by quota code */ 739 qsize_t i_reserved_quota; 740 #endif 741 struct list_head dirty_list; /* dirty list for dirs and files */ 742 struct list_head gdirty_list; /* linked in global dirty list */ 743 struct list_head inmem_ilist; /* list for inmem inodes */ 744 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 745 struct task_struct *inmem_task; /* store inmemory task */ 746 struct mutex inmem_lock; /* lock for inmemory pages */ 747 struct extent_tree *extent_tree; /* cached extent_tree entry */ 748 749 /* avoid racing between foreground op and gc */ 750 struct rw_semaphore i_gc_rwsem[2]; 751 struct rw_semaphore i_mmap_sem; 752 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 753 754 int i_extra_isize; /* size of extra space located in i_addr */ 755 kprojid_t i_projid; /* id for project quota */ 756 int i_inline_xattr_size; /* inline xattr size */ 757 struct timespec64 i_crtime; /* inode creation time */ 758 struct timespec64 i_disk_time[4];/* inode disk times */ 759 760 /* for file compress */ 761 atomic_t i_compr_blocks; /* # of compressed blocks */ 762 unsigned char i_compress_algorithm; /* algorithm type */ 763 unsigned char i_log_cluster_size; /* log of cluster size */ 764 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */ 765 unsigned short i_compress_flag; /* compress flag */ 766 unsigned int i_cluster_size; /* cluster size */ 767 }; 768 769 static inline void get_extent_info(struct extent_info *ext, 770 struct f2fs_extent *i_ext) 771 { 772 ext->fofs = le32_to_cpu(i_ext->fofs); 773 ext->blk = le32_to_cpu(i_ext->blk); 774 ext->len = le32_to_cpu(i_ext->len); 775 } 776 777 static inline void set_raw_extent(struct extent_info *ext, 778 struct f2fs_extent *i_ext) 779 { 780 i_ext->fofs = cpu_to_le32(ext->fofs); 781 i_ext->blk = cpu_to_le32(ext->blk); 782 i_ext->len = cpu_to_le32(ext->len); 783 } 784 785 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 786 u32 blk, unsigned int len) 787 { 788 ei->fofs = fofs; 789 ei->blk = blk; 790 ei->len = len; 791 } 792 793 static inline bool __is_discard_mergeable(struct discard_info *back, 794 struct discard_info *front, unsigned int max_len) 795 { 796 return (back->lstart + back->len == front->lstart) && 797 (back->len + front->len <= max_len); 798 } 799 800 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 801 struct discard_info *back, unsigned int max_len) 802 { 803 return __is_discard_mergeable(back, cur, max_len); 804 } 805 806 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 807 struct discard_info *front, unsigned int max_len) 808 { 809 return __is_discard_mergeable(cur, front, max_len); 810 } 811 812 static inline bool __is_extent_mergeable(struct extent_info *back, 813 struct extent_info *front) 814 { 815 return (back->fofs + back->len == front->fofs && 816 back->blk + back->len == front->blk); 817 } 818 819 static inline bool __is_back_mergeable(struct extent_info *cur, 820 struct extent_info *back) 821 { 822 return __is_extent_mergeable(back, cur); 823 } 824 825 static inline bool __is_front_mergeable(struct extent_info *cur, 826 struct extent_info *front) 827 { 828 return __is_extent_mergeable(cur, front); 829 } 830 831 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 832 static inline void __try_update_largest_extent(struct extent_tree *et, 833 struct extent_node *en) 834 { 835 if (en->ei.len > et->largest.len) { 836 et->largest = en->ei; 837 et->largest_updated = true; 838 } 839 } 840 841 /* 842 * For free nid management 843 */ 844 enum nid_state { 845 FREE_NID, /* newly added to free nid list */ 846 PREALLOC_NID, /* it is preallocated */ 847 MAX_NID_STATE, 848 }; 849 850 enum nat_state { 851 TOTAL_NAT, 852 DIRTY_NAT, 853 RECLAIMABLE_NAT, 854 MAX_NAT_STATE, 855 }; 856 857 struct f2fs_nm_info { 858 block_t nat_blkaddr; /* base disk address of NAT */ 859 nid_t max_nid; /* maximum possible node ids */ 860 nid_t available_nids; /* # of available node ids */ 861 nid_t next_scan_nid; /* the next nid to be scanned */ 862 unsigned int ram_thresh; /* control the memory footprint */ 863 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 864 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 865 866 /* NAT cache management */ 867 struct radix_tree_root nat_root;/* root of the nat entry cache */ 868 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 869 struct rw_semaphore nat_tree_lock; /* protect nat entry tree */ 870 struct list_head nat_entries; /* cached nat entry list (clean) */ 871 spinlock_t nat_list_lock; /* protect clean nat entry list */ 872 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */ 873 unsigned int nat_blocks; /* # of nat blocks */ 874 875 /* free node ids management */ 876 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 877 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 878 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 879 spinlock_t nid_list_lock; /* protect nid lists ops */ 880 struct mutex build_lock; /* lock for build free nids */ 881 unsigned char **free_nid_bitmap; 882 unsigned char *nat_block_bitmap; 883 unsigned short *free_nid_count; /* free nid count of NAT block */ 884 885 /* for checkpoint */ 886 char *nat_bitmap; /* NAT bitmap pointer */ 887 888 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 889 unsigned char *nat_bits; /* NAT bits blocks */ 890 unsigned char *full_nat_bits; /* full NAT pages */ 891 unsigned char *empty_nat_bits; /* empty NAT pages */ 892 #ifdef CONFIG_F2FS_CHECK_FS 893 char *nat_bitmap_mir; /* NAT bitmap mirror */ 894 #endif 895 int bitmap_size; /* bitmap size */ 896 }; 897 898 /* 899 * this structure is used as one of function parameters. 900 * all the information are dedicated to a given direct node block determined 901 * by the data offset in a file. 902 */ 903 struct dnode_of_data { 904 struct inode *inode; /* vfs inode pointer */ 905 struct page *inode_page; /* its inode page, NULL is possible */ 906 struct page *node_page; /* cached direct node page */ 907 nid_t nid; /* node id of the direct node block */ 908 unsigned int ofs_in_node; /* data offset in the node page */ 909 bool inode_page_locked; /* inode page is locked or not */ 910 bool node_changed; /* is node block changed */ 911 char cur_level; /* level of hole node page */ 912 char max_level; /* level of current page located */ 913 block_t data_blkaddr; /* block address of the node block */ 914 }; 915 916 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 917 struct page *ipage, struct page *npage, nid_t nid) 918 { 919 memset(dn, 0, sizeof(*dn)); 920 dn->inode = inode; 921 dn->inode_page = ipage; 922 dn->node_page = npage; 923 dn->nid = nid; 924 } 925 926 /* 927 * For SIT manager 928 * 929 * By default, there are 6 active log areas across the whole main area. 930 * When considering hot and cold data separation to reduce cleaning overhead, 931 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 932 * respectively. 933 * In the current design, you should not change the numbers intentionally. 934 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 935 * logs individually according to the underlying devices. (default: 6) 936 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 937 * data and 8 for node logs. 938 */ 939 #define NR_CURSEG_DATA_TYPE (3) 940 #define NR_CURSEG_NODE_TYPE (3) 941 #define NR_CURSEG_INMEM_TYPE (2) 942 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 943 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE) 944 945 enum { 946 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 947 CURSEG_WARM_DATA, /* data blocks */ 948 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 949 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 950 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 951 CURSEG_COLD_NODE, /* indirect node blocks */ 952 NR_PERSISTENT_LOG, /* number of persistent log */ 953 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG, 954 /* pinned file that needs consecutive block address */ 955 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */ 956 NO_CHECK_TYPE, /* number of persistent & inmem log */ 957 }; 958 959 struct flush_cmd { 960 struct completion wait; 961 struct llist_node llnode; 962 nid_t ino; 963 int ret; 964 }; 965 966 struct flush_cmd_control { 967 struct task_struct *f2fs_issue_flush; /* flush thread */ 968 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 969 atomic_t issued_flush; /* # of issued flushes */ 970 atomic_t queued_flush; /* # of queued flushes */ 971 struct llist_head issue_list; /* list for command issue */ 972 struct llist_node *dispatch_list; /* list for command dispatch */ 973 }; 974 975 struct f2fs_sm_info { 976 struct sit_info *sit_info; /* whole segment information */ 977 struct free_segmap_info *free_info; /* free segment information */ 978 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 979 struct curseg_info *curseg_array; /* active segment information */ 980 981 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 982 983 block_t seg0_blkaddr; /* block address of 0'th segment */ 984 block_t main_blkaddr; /* start block address of main area */ 985 block_t ssa_blkaddr; /* start block address of SSA area */ 986 987 unsigned int segment_count; /* total # of segments */ 988 unsigned int main_segments; /* # of segments in main area */ 989 unsigned int reserved_segments; /* # of reserved segments */ 990 unsigned int ovp_segments; /* # of overprovision segments */ 991 992 /* a threshold to reclaim prefree segments */ 993 unsigned int rec_prefree_segments; 994 995 /* for batched trimming */ 996 unsigned int trim_sections; /* # of sections to trim */ 997 998 struct list_head sit_entry_set; /* sit entry set list */ 999 1000 unsigned int ipu_policy; /* in-place-update policy */ 1001 unsigned int min_ipu_util; /* in-place-update threshold */ 1002 unsigned int min_fsync_blocks; /* threshold for fsync */ 1003 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 1004 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 1005 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 1006 1007 /* for flush command control */ 1008 struct flush_cmd_control *fcc_info; 1009 1010 /* for discard command control */ 1011 struct discard_cmd_control *dcc_info; 1012 }; 1013 1014 /* 1015 * For superblock 1016 */ 1017 /* 1018 * COUNT_TYPE for monitoring 1019 * 1020 * f2fs monitors the number of several block types such as on-writeback, 1021 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 1022 */ 1023 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 1024 enum count_type { 1025 F2FS_DIRTY_DENTS, 1026 F2FS_DIRTY_DATA, 1027 F2FS_DIRTY_QDATA, 1028 F2FS_DIRTY_NODES, 1029 F2FS_DIRTY_META, 1030 F2FS_INMEM_PAGES, 1031 F2FS_DIRTY_IMETA, 1032 F2FS_WB_CP_DATA, 1033 F2FS_WB_DATA, 1034 F2FS_RD_DATA, 1035 F2FS_RD_NODE, 1036 F2FS_RD_META, 1037 F2FS_DIO_WRITE, 1038 F2FS_DIO_READ, 1039 NR_COUNT_TYPE, 1040 }; 1041 1042 /* 1043 * The below are the page types of bios used in submit_bio(). 1044 * The available types are: 1045 * DATA User data pages. It operates as async mode. 1046 * NODE Node pages. It operates as async mode. 1047 * META FS metadata pages such as SIT, NAT, CP. 1048 * NR_PAGE_TYPE The number of page types. 1049 * META_FLUSH Make sure the previous pages are written 1050 * with waiting the bio's completion 1051 * ... Only can be used with META. 1052 */ 1053 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 1054 enum page_type { 1055 DATA, 1056 NODE, 1057 META, 1058 NR_PAGE_TYPE, 1059 META_FLUSH, 1060 INMEM, /* the below types are used by tracepoints only. */ 1061 INMEM_DROP, 1062 INMEM_INVALIDATE, 1063 INMEM_REVOKE, 1064 IPU, 1065 OPU, 1066 }; 1067 1068 enum temp_type { 1069 HOT = 0, /* must be zero for meta bio */ 1070 WARM, 1071 COLD, 1072 NR_TEMP_TYPE, 1073 }; 1074 1075 enum need_lock_type { 1076 LOCK_REQ = 0, 1077 LOCK_DONE, 1078 LOCK_RETRY, 1079 }; 1080 1081 enum cp_reason_type { 1082 CP_NO_NEEDED, 1083 CP_NON_REGULAR, 1084 CP_COMPRESSED, 1085 CP_HARDLINK, 1086 CP_SB_NEED_CP, 1087 CP_WRONG_PINO, 1088 CP_NO_SPC_ROLL, 1089 CP_NODE_NEED_CP, 1090 CP_FASTBOOT_MODE, 1091 CP_SPEC_LOG_NUM, 1092 CP_RECOVER_DIR, 1093 }; 1094 1095 enum iostat_type { 1096 /* WRITE IO */ 1097 APP_DIRECT_IO, /* app direct write IOs */ 1098 APP_BUFFERED_IO, /* app buffered write IOs */ 1099 APP_WRITE_IO, /* app write IOs */ 1100 APP_MAPPED_IO, /* app mapped IOs */ 1101 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1102 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1103 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1104 FS_GC_DATA_IO, /* data IOs from forground gc */ 1105 FS_GC_NODE_IO, /* node IOs from forground gc */ 1106 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1107 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1108 FS_CP_META_IO, /* meta IOs from checkpoint */ 1109 1110 /* READ IO */ 1111 APP_DIRECT_READ_IO, /* app direct read IOs */ 1112 APP_BUFFERED_READ_IO, /* app buffered read IOs */ 1113 APP_READ_IO, /* app read IOs */ 1114 APP_MAPPED_READ_IO, /* app mapped read IOs */ 1115 FS_DATA_READ_IO, /* data read IOs */ 1116 FS_GDATA_READ_IO, /* data read IOs from background gc */ 1117 FS_CDATA_READ_IO, /* compressed data read IOs */ 1118 FS_NODE_READ_IO, /* node read IOs */ 1119 FS_META_READ_IO, /* meta read IOs */ 1120 1121 /* other */ 1122 FS_DISCARD, /* discard */ 1123 NR_IO_TYPE, 1124 }; 1125 1126 struct f2fs_io_info { 1127 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1128 nid_t ino; /* inode number */ 1129 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1130 enum temp_type temp; /* contains HOT/WARM/COLD */ 1131 int op; /* contains REQ_OP_ */ 1132 int op_flags; /* req_flag_bits */ 1133 block_t new_blkaddr; /* new block address to be written */ 1134 block_t old_blkaddr; /* old block address before Cow */ 1135 struct page *page; /* page to be written */ 1136 struct page *encrypted_page; /* encrypted page */ 1137 struct page *compressed_page; /* compressed page */ 1138 struct list_head list; /* serialize IOs */ 1139 bool submitted; /* indicate IO submission */ 1140 int need_lock; /* indicate we need to lock cp_rwsem */ 1141 bool in_list; /* indicate fio is in io_list */ 1142 bool is_por; /* indicate IO is from recovery or not */ 1143 bool retry; /* need to reallocate block address */ 1144 int compr_blocks; /* # of compressed block addresses */ 1145 bool encrypted; /* indicate file is encrypted */ 1146 enum iostat_type io_type; /* io type */ 1147 struct writeback_control *io_wbc; /* writeback control */ 1148 struct bio **bio; /* bio for ipu */ 1149 sector_t *last_block; /* last block number in bio */ 1150 unsigned char version; /* version of the node */ 1151 }; 1152 1153 struct bio_entry { 1154 struct bio *bio; 1155 struct list_head list; 1156 }; 1157 1158 #define is_read_io(rw) ((rw) == READ) 1159 struct f2fs_bio_info { 1160 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1161 struct bio *bio; /* bios to merge */ 1162 sector_t last_block_in_bio; /* last block number */ 1163 struct f2fs_io_info fio; /* store buffered io info. */ 1164 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1165 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1166 struct list_head io_list; /* track fios */ 1167 struct list_head bio_list; /* bio entry list head */ 1168 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */ 1169 }; 1170 1171 #define FDEV(i) (sbi->devs[i]) 1172 #define RDEV(i) (raw_super->devs[i]) 1173 struct f2fs_dev_info { 1174 struct block_device *bdev; 1175 char path[MAX_PATH_LEN]; 1176 unsigned int total_segments; 1177 block_t start_blk; 1178 block_t end_blk; 1179 #ifdef CONFIG_BLK_DEV_ZONED 1180 unsigned int nr_blkz; /* Total number of zones */ 1181 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */ 1182 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */ 1183 #endif 1184 }; 1185 1186 enum inode_type { 1187 DIR_INODE, /* for dirty dir inode */ 1188 FILE_INODE, /* for dirty regular/symlink inode */ 1189 DIRTY_META, /* for all dirtied inode metadata */ 1190 ATOMIC_FILE, /* for all atomic files */ 1191 NR_INODE_TYPE, 1192 }; 1193 1194 /* for inner inode cache management */ 1195 struct inode_management { 1196 struct radix_tree_root ino_root; /* ino entry array */ 1197 spinlock_t ino_lock; /* for ino entry lock */ 1198 struct list_head ino_list; /* inode list head */ 1199 unsigned long ino_num; /* number of entries */ 1200 }; 1201 1202 /* for GC_AT */ 1203 struct atgc_management { 1204 bool atgc_enabled; /* ATGC is enabled or not */ 1205 struct rb_root_cached root; /* root of victim rb-tree */ 1206 struct list_head victim_list; /* linked with all victim entries */ 1207 unsigned int victim_count; /* victim count in rb-tree */ 1208 unsigned int candidate_ratio; /* candidate ratio */ 1209 unsigned int max_candidate_count; /* max candidate count */ 1210 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */ 1211 unsigned long long age_threshold; /* age threshold */ 1212 }; 1213 1214 /* For s_flag in struct f2fs_sb_info */ 1215 enum { 1216 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1217 SBI_IS_CLOSE, /* specify unmounting */ 1218 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1219 SBI_POR_DOING, /* recovery is doing or not */ 1220 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1221 SBI_NEED_CP, /* need to checkpoint */ 1222 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1223 SBI_IS_RECOVERED, /* recovered orphan/data */ 1224 SBI_CP_DISABLED, /* CP was disabled last mount */ 1225 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ 1226 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1227 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1228 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1229 SBI_IS_RESIZEFS, /* resizefs is in process */ 1230 }; 1231 1232 enum { 1233 CP_TIME, 1234 REQ_TIME, 1235 DISCARD_TIME, 1236 GC_TIME, 1237 DISABLE_TIME, 1238 UMOUNT_DISCARD_TIMEOUT, 1239 MAX_TIME, 1240 }; 1241 1242 enum { 1243 GC_NORMAL, 1244 GC_IDLE_CB, 1245 GC_IDLE_GREEDY, 1246 GC_IDLE_AT, 1247 GC_URGENT_HIGH, 1248 GC_URGENT_LOW, 1249 }; 1250 1251 enum { 1252 BGGC_MODE_ON, /* background gc is on */ 1253 BGGC_MODE_OFF, /* background gc is off */ 1254 BGGC_MODE_SYNC, /* 1255 * background gc is on, migrating blocks 1256 * like foreground gc 1257 */ 1258 }; 1259 1260 enum { 1261 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */ 1262 FS_MODE_LFS, /* use lfs allocation only */ 1263 }; 1264 1265 enum { 1266 WHINT_MODE_OFF, /* not pass down write hints */ 1267 WHINT_MODE_USER, /* try to pass down hints given by users */ 1268 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1269 }; 1270 1271 enum { 1272 ALLOC_MODE_DEFAULT, /* stay default */ 1273 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1274 }; 1275 1276 enum fsync_mode { 1277 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1278 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1279 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1280 }; 1281 1282 enum { 1283 COMPR_MODE_FS, /* 1284 * automatically compress compression 1285 * enabled files 1286 */ 1287 COMPR_MODE_USER, /* 1288 * automatical compression is disabled. 1289 * user can control the file compression 1290 * using ioctls 1291 */ 1292 }; 1293 1294 /* 1295 * this value is set in page as a private data which indicate that 1296 * the page is atomically written, and it is in inmem_pages list. 1297 */ 1298 #define ATOMIC_WRITTEN_PAGE ((unsigned long)-1) 1299 #define DUMMY_WRITTEN_PAGE ((unsigned long)-2) 1300 1301 #define IS_ATOMIC_WRITTEN_PAGE(page) \ 1302 (page_private(page) == ATOMIC_WRITTEN_PAGE) 1303 #define IS_DUMMY_WRITTEN_PAGE(page) \ 1304 (page_private(page) == DUMMY_WRITTEN_PAGE) 1305 1306 #ifdef CONFIG_F2FS_IO_TRACE 1307 #define IS_IO_TRACED_PAGE(page) \ 1308 (page_private(page) > 0 && \ 1309 page_private(page) < (unsigned long)PID_MAX_LIMIT) 1310 #else 1311 #define IS_IO_TRACED_PAGE(page) (0) 1312 #endif 1313 1314 /* For compression */ 1315 enum compress_algorithm_type { 1316 COMPRESS_LZO, 1317 COMPRESS_LZ4, 1318 COMPRESS_ZSTD, 1319 COMPRESS_LZORLE, 1320 COMPRESS_MAX, 1321 }; 1322 1323 enum compress_flag { 1324 COMPRESS_CHKSUM, 1325 COMPRESS_MAX_FLAG, 1326 }; 1327 1328 #define COMPRESS_DATA_RESERVED_SIZE 4 1329 struct compress_data { 1330 __le32 clen; /* compressed data size */ 1331 __le32 chksum; /* compressed data chksum */ 1332 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */ 1333 u8 cdata[]; /* compressed data */ 1334 }; 1335 1336 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data)) 1337 1338 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000 1339 1340 #define COMPRESS_LEVEL_OFFSET 8 1341 1342 /* compress context */ 1343 struct compress_ctx { 1344 struct inode *inode; /* inode the context belong to */ 1345 pgoff_t cluster_idx; /* cluster index number */ 1346 unsigned int cluster_size; /* page count in cluster */ 1347 unsigned int log_cluster_size; /* log of cluster size */ 1348 struct page **rpages; /* pages store raw data in cluster */ 1349 unsigned int nr_rpages; /* total page number in rpages */ 1350 struct page **cpages; /* pages store compressed data in cluster */ 1351 unsigned int nr_cpages; /* total page number in cpages */ 1352 void *rbuf; /* virtual mapped address on rpages */ 1353 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1354 size_t rlen; /* valid data length in rbuf */ 1355 size_t clen; /* valid data length in cbuf */ 1356 void *private; /* payload buffer for specified compression algorithm */ 1357 void *private2; /* extra payload buffer */ 1358 }; 1359 1360 /* compress context for write IO path */ 1361 struct compress_io_ctx { 1362 u32 magic; /* magic number to indicate page is compressed */ 1363 struct inode *inode; /* inode the context belong to */ 1364 struct page **rpages; /* pages store raw data in cluster */ 1365 unsigned int nr_rpages; /* total page number in rpages */ 1366 atomic_t pending_pages; /* in-flight compressed page count */ 1367 }; 1368 1369 /* Context for decompressing one cluster on the read IO path */ 1370 struct decompress_io_ctx { 1371 u32 magic; /* magic number to indicate page is compressed */ 1372 struct inode *inode; /* inode the context belong to */ 1373 pgoff_t cluster_idx; /* cluster index number */ 1374 unsigned int cluster_size; /* page count in cluster */ 1375 unsigned int log_cluster_size; /* log of cluster size */ 1376 struct page **rpages; /* pages store raw data in cluster */ 1377 unsigned int nr_rpages; /* total page number in rpages */ 1378 struct page **cpages; /* pages store compressed data in cluster */ 1379 unsigned int nr_cpages; /* total page number in cpages */ 1380 struct page **tpages; /* temp pages to pad holes in cluster */ 1381 void *rbuf; /* virtual mapped address on rpages */ 1382 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1383 size_t rlen; /* valid data length in rbuf */ 1384 size_t clen; /* valid data length in cbuf */ 1385 1386 /* 1387 * The number of compressed pages remaining to be read in this cluster. 1388 * This is initially nr_cpages. It is decremented by 1 each time a page 1389 * has been read (or failed to be read). When it reaches 0, the cluster 1390 * is decompressed (or an error is reported). 1391 * 1392 * If an error occurs before all the pages have been submitted for I/O, 1393 * then this will never reach 0. In this case the I/O submitter is 1394 * responsible for calling f2fs_decompress_end_io() instead. 1395 */ 1396 atomic_t remaining_pages; 1397 1398 /* 1399 * Number of references to this decompress_io_ctx. 1400 * 1401 * One reference is held for I/O completion. This reference is dropped 1402 * after the pagecache pages are updated and unlocked -- either after 1403 * decompression (and verity if enabled), or after an error. 1404 * 1405 * In addition, each compressed page holds a reference while it is in a 1406 * bio. These references are necessary prevent compressed pages from 1407 * being freed while they are still in a bio. 1408 */ 1409 refcount_t refcnt; 1410 1411 bool failed; /* IO error occurred before decompression? */ 1412 bool need_verity; /* need fs-verity verification after decompression? */ 1413 void *private; /* payload buffer for specified decompression algorithm */ 1414 void *private2; /* extra payload buffer */ 1415 struct work_struct verity_work; /* work to verify the decompressed pages */ 1416 }; 1417 1418 #define NULL_CLUSTER ((unsigned int)(~0)) 1419 #define MIN_COMPRESS_LOG_SIZE 2 1420 #define MAX_COMPRESS_LOG_SIZE 8 1421 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size)) 1422 1423 struct f2fs_sb_info { 1424 struct super_block *sb; /* pointer to VFS super block */ 1425 struct proc_dir_entry *s_proc; /* proc entry */ 1426 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1427 struct rw_semaphore sb_lock; /* lock for raw super block */ 1428 int valid_super_block; /* valid super block no */ 1429 unsigned long s_flag; /* flags for sbi */ 1430 struct mutex writepages; /* mutex for writepages() */ 1431 1432 #ifdef CONFIG_BLK_DEV_ZONED 1433 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1434 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1435 #endif 1436 1437 /* for node-related operations */ 1438 struct f2fs_nm_info *nm_info; /* node manager */ 1439 struct inode *node_inode; /* cache node blocks */ 1440 1441 /* for segment-related operations */ 1442 struct f2fs_sm_info *sm_info; /* segment manager */ 1443 1444 /* for bio operations */ 1445 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1446 /* keep migration IO order for LFS mode */ 1447 struct rw_semaphore io_order_lock; 1448 mempool_t *write_io_dummy; /* Dummy pages */ 1449 1450 /* for checkpoint */ 1451 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1452 int cur_cp_pack; /* remain current cp pack */ 1453 spinlock_t cp_lock; /* for flag in ckpt */ 1454 struct inode *meta_inode; /* cache meta blocks */ 1455 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */ 1456 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1457 struct rw_semaphore node_write; /* locking node writes */ 1458 struct rw_semaphore node_change; /* locking node change */ 1459 wait_queue_head_t cp_wait; 1460 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1461 long interval_time[MAX_TIME]; /* to store thresholds */ 1462 struct ckpt_req_control cprc_info; /* for checkpoint request control */ 1463 1464 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1465 1466 spinlock_t fsync_node_lock; /* for node entry lock */ 1467 struct list_head fsync_node_list; /* node list head */ 1468 unsigned int fsync_seg_id; /* sequence id */ 1469 unsigned int fsync_node_num; /* number of node entries */ 1470 1471 /* for orphan inode, use 0'th array */ 1472 unsigned int max_orphans; /* max orphan inodes */ 1473 1474 /* for inode management */ 1475 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1476 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1477 struct mutex flush_lock; /* for flush exclusion */ 1478 1479 /* for extent tree cache */ 1480 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1481 struct mutex extent_tree_lock; /* locking extent radix tree */ 1482 struct list_head extent_list; /* lru list for shrinker */ 1483 spinlock_t extent_lock; /* locking extent lru list */ 1484 atomic_t total_ext_tree; /* extent tree count */ 1485 struct list_head zombie_list; /* extent zombie tree list */ 1486 atomic_t total_zombie_tree; /* extent zombie tree count */ 1487 atomic_t total_ext_node; /* extent info count */ 1488 1489 /* basic filesystem units */ 1490 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1491 unsigned int log_blocksize; /* log2 block size */ 1492 unsigned int blocksize; /* block size */ 1493 unsigned int root_ino_num; /* root inode number*/ 1494 unsigned int node_ino_num; /* node inode number*/ 1495 unsigned int meta_ino_num; /* meta inode number*/ 1496 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1497 unsigned int blocks_per_seg; /* blocks per segment */ 1498 unsigned int segs_per_sec; /* segments per section */ 1499 unsigned int secs_per_zone; /* sections per zone */ 1500 unsigned int total_sections; /* total section count */ 1501 unsigned int total_node_count; /* total node block count */ 1502 unsigned int total_valid_node_count; /* valid node block count */ 1503 int dir_level; /* directory level */ 1504 int readdir_ra; /* readahead inode in readdir */ 1505 u64 max_io_bytes; /* max io bytes to merge IOs */ 1506 1507 block_t user_block_count; /* # of user blocks */ 1508 block_t total_valid_block_count; /* # of valid blocks */ 1509 block_t discard_blks; /* discard command candidats */ 1510 block_t last_valid_block_count; /* for recovery */ 1511 block_t reserved_blocks; /* configurable reserved blocks */ 1512 block_t current_reserved_blocks; /* current reserved blocks */ 1513 1514 /* Additional tracking for no checkpoint mode */ 1515 block_t unusable_block_count; /* # of blocks saved by last cp */ 1516 1517 unsigned int nquota_files; /* # of quota sysfile */ 1518 struct rw_semaphore quota_sem; /* blocking cp for flags */ 1519 1520 /* # of pages, see count_type */ 1521 atomic_t nr_pages[NR_COUNT_TYPE]; 1522 /* # of allocated blocks */ 1523 struct percpu_counter alloc_valid_block_count; 1524 1525 /* writeback control */ 1526 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1527 1528 /* valid inode count */ 1529 struct percpu_counter total_valid_inode_count; 1530 1531 struct f2fs_mount_info mount_opt; /* mount options */ 1532 1533 /* for cleaning operations */ 1534 struct rw_semaphore gc_lock; /* 1535 * semaphore for GC, avoid 1536 * race between GC and GC or CP 1537 */ 1538 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1539 struct atgc_management am; /* atgc management */ 1540 unsigned int cur_victim_sec; /* current victim section num */ 1541 unsigned int gc_mode; /* current GC state */ 1542 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1543 1544 /* for skip statistic */ 1545 unsigned int atomic_files; /* # of opened atomic file */ 1546 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1547 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1548 1549 /* threshold for gc trials on pinned files */ 1550 u64 gc_pin_file_threshold; 1551 struct rw_semaphore pin_sem; 1552 1553 /* maximum # of trials to find a victim segment for SSR and GC */ 1554 unsigned int max_victim_search; 1555 /* migration granularity of garbage collection, unit: segment */ 1556 unsigned int migration_granularity; 1557 1558 /* 1559 * for stat information. 1560 * one is for the LFS mode, and the other is for the SSR mode. 1561 */ 1562 #ifdef CONFIG_F2FS_STAT_FS 1563 struct f2fs_stat_info *stat_info; /* FS status information */ 1564 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1565 unsigned int segment_count[2]; /* # of allocated segments */ 1566 unsigned int block_count[2]; /* # of allocated blocks */ 1567 atomic_t inplace_count; /* # of inplace update */ 1568 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1569 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1570 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1571 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1572 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1573 atomic_t inline_inode; /* # of inline_data inodes */ 1574 atomic_t inline_dir; /* # of inline_dentry inodes */ 1575 atomic_t compr_inode; /* # of compressed inodes */ 1576 atomic64_t compr_blocks; /* # of compressed blocks */ 1577 atomic_t vw_cnt; /* # of volatile writes */ 1578 atomic_t max_aw_cnt; /* max # of atomic writes */ 1579 atomic_t max_vw_cnt; /* max # of volatile writes */ 1580 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1581 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1582 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1583 #endif 1584 spinlock_t stat_lock; /* lock for stat operations */ 1585 1586 /* For app/fs IO statistics */ 1587 spinlock_t iostat_lock; 1588 unsigned long long rw_iostat[NR_IO_TYPE]; 1589 unsigned long long prev_rw_iostat[NR_IO_TYPE]; 1590 bool iostat_enable; 1591 unsigned long iostat_next_period; 1592 unsigned int iostat_period_ms; 1593 1594 /* to attach REQ_META|REQ_FUA flags */ 1595 unsigned int data_io_flag; 1596 unsigned int node_io_flag; 1597 1598 /* For sysfs suppport */ 1599 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */ 1600 struct completion s_kobj_unregister; 1601 1602 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */ 1603 struct completion s_stat_kobj_unregister; 1604 1605 /* For shrinker support */ 1606 struct list_head s_list; 1607 int s_ndevs; /* number of devices */ 1608 struct f2fs_dev_info *devs; /* for device list */ 1609 unsigned int dirty_device; /* for checkpoint data flush */ 1610 spinlock_t dev_lock; /* protect dirty_device */ 1611 struct mutex umount_mutex; 1612 unsigned int shrinker_run_no; 1613 1614 /* For write statistics */ 1615 u64 sectors_written_start; 1616 u64 kbytes_written; 1617 1618 /* Reference to checksum algorithm driver via cryptoapi */ 1619 struct crypto_shash *s_chksum_driver; 1620 1621 /* Precomputed FS UUID checksum for seeding other checksums */ 1622 __u32 s_chksum_seed; 1623 1624 struct workqueue_struct *post_read_wq; /* post read workqueue */ 1625 1626 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */ 1627 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */ 1628 1629 #ifdef CONFIG_F2FS_FS_COMPRESSION 1630 struct kmem_cache *page_array_slab; /* page array entry */ 1631 unsigned int page_array_slab_size; /* default page array slab size */ 1632 1633 /* For runtime compression statistics */ 1634 u64 compr_written_block; 1635 u64 compr_saved_block; 1636 u32 compr_new_inode; 1637 #endif 1638 }; 1639 1640 struct f2fs_private_dio { 1641 struct inode *inode; 1642 void *orig_private; 1643 bio_end_io_t *orig_end_io; 1644 bool write; 1645 }; 1646 1647 #ifdef CONFIG_F2FS_FAULT_INJECTION 1648 #define f2fs_show_injection_info(sbi, type) \ 1649 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \ 1650 KERN_INFO, sbi->sb->s_id, \ 1651 f2fs_fault_name[type], \ 1652 __func__, __builtin_return_address(0)) 1653 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1654 { 1655 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1656 1657 if (!ffi->inject_rate) 1658 return false; 1659 1660 if (!IS_FAULT_SET(ffi, type)) 1661 return false; 1662 1663 atomic_inc(&ffi->inject_ops); 1664 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1665 atomic_set(&ffi->inject_ops, 0); 1666 return true; 1667 } 1668 return false; 1669 } 1670 #else 1671 #define f2fs_show_injection_info(sbi, type) do { } while (0) 1672 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1673 { 1674 return false; 1675 } 1676 #endif 1677 1678 /* 1679 * Test if the mounted volume is a multi-device volume. 1680 * - For a single regular disk volume, sbi->s_ndevs is 0. 1681 * - For a single zoned disk volume, sbi->s_ndevs is 1. 1682 * - For a multi-device volume, sbi->s_ndevs is always 2 or more. 1683 */ 1684 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi) 1685 { 1686 return sbi->s_ndevs > 1; 1687 } 1688 1689 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1690 { 1691 unsigned long now = jiffies; 1692 1693 sbi->last_time[type] = now; 1694 1695 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1696 if (type == REQ_TIME) { 1697 sbi->last_time[DISCARD_TIME] = now; 1698 sbi->last_time[GC_TIME] = now; 1699 } 1700 } 1701 1702 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1703 { 1704 unsigned long interval = sbi->interval_time[type] * HZ; 1705 1706 return time_after(jiffies, sbi->last_time[type] + interval); 1707 } 1708 1709 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1710 int type) 1711 { 1712 unsigned long interval = sbi->interval_time[type] * HZ; 1713 unsigned int wait_ms = 0; 1714 long delta; 1715 1716 delta = (sbi->last_time[type] + interval) - jiffies; 1717 if (delta > 0) 1718 wait_ms = jiffies_to_msecs(delta); 1719 1720 return wait_ms; 1721 } 1722 1723 /* 1724 * Inline functions 1725 */ 1726 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1727 const void *address, unsigned int length) 1728 { 1729 struct { 1730 struct shash_desc shash; 1731 char ctx[4]; 1732 } desc; 1733 int err; 1734 1735 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1736 1737 desc.shash.tfm = sbi->s_chksum_driver; 1738 *(u32 *)desc.ctx = crc; 1739 1740 err = crypto_shash_update(&desc.shash, address, length); 1741 BUG_ON(err); 1742 1743 return *(u32 *)desc.ctx; 1744 } 1745 1746 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1747 unsigned int length) 1748 { 1749 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1750 } 1751 1752 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1753 void *buf, size_t buf_size) 1754 { 1755 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1756 } 1757 1758 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1759 const void *address, unsigned int length) 1760 { 1761 return __f2fs_crc32(sbi, crc, address, length); 1762 } 1763 1764 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1765 { 1766 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1767 } 1768 1769 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1770 { 1771 return sb->s_fs_info; 1772 } 1773 1774 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1775 { 1776 return F2FS_SB(inode->i_sb); 1777 } 1778 1779 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1780 { 1781 return F2FS_I_SB(mapping->host); 1782 } 1783 1784 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1785 { 1786 return F2FS_M_SB(page_file_mapping(page)); 1787 } 1788 1789 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1790 { 1791 return (struct f2fs_super_block *)(sbi->raw_super); 1792 } 1793 1794 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1795 { 1796 return (struct f2fs_checkpoint *)(sbi->ckpt); 1797 } 1798 1799 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1800 { 1801 return (struct f2fs_node *)page_address(page); 1802 } 1803 1804 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1805 { 1806 return &((struct f2fs_node *)page_address(page))->i; 1807 } 1808 1809 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1810 { 1811 return (struct f2fs_nm_info *)(sbi->nm_info); 1812 } 1813 1814 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1815 { 1816 return (struct f2fs_sm_info *)(sbi->sm_info); 1817 } 1818 1819 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1820 { 1821 return (struct sit_info *)(SM_I(sbi)->sit_info); 1822 } 1823 1824 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1825 { 1826 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1827 } 1828 1829 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1830 { 1831 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1832 } 1833 1834 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1835 { 1836 return sbi->meta_inode->i_mapping; 1837 } 1838 1839 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1840 { 1841 return sbi->node_inode->i_mapping; 1842 } 1843 1844 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1845 { 1846 return test_bit(type, &sbi->s_flag); 1847 } 1848 1849 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1850 { 1851 set_bit(type, &sbi->s_flag); 1852 } 1853 1854 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1855 { 1856 clear_bit(type, &sbi->s_flag); 1857 } 1858 1859 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1860 { 1861 return le64_to_cpu(cp->checkpoint_ver); 1862 } 1863 1864 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1865 { 1866 if (type < F2FS_MAX_QUOTAS) 1867 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1868 return 0; 1869 } 1870 1871 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1872 { 1873 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1874 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1875 } 1876 1877 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1878 { 1879 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1880 1881 return ckpt_flags & f; 1882 } 1883 1884 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1885 { 1886 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1887 } 1888 1889 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1890 { 1891 unsigned int ckpt_flags; 1892 1893 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1894 ckpt_flags |= f; 1895 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1896 } 1897 1898 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1899 { 1900 unsigned long flags; 1901 1902 spin_lock_irqsave(&sbi->cp_lock, flags); 1903 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1904 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1905 } 1906 1907 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1908 { 1909 unsigned int ckpt_flags; 1910 1911 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1912 ckpt_flags &= (~f); 1913 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1914 } 1915 1916 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1917 { 1918 unsigned long flags; 1919 1920 spin_lock_irqsave(&sbi->cp_lock, flags); 1921 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1922 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1923 } 1924 1925 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1926 { 1927 unsigned long flags; 1928 unsigned char *nat_bits; 1929 1930 /* 1931 * In order to re-enable nat_bits we need to call fsck.f2fs by 1932 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1933 * so let's rely on regular fsck or unclean shutdown. 1934 */ 1935 1936 if (lock) 1937 spin_lock_irqsave(&sbi->cp_lock, flags); 1938 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 1939 nat_bits = NM_I(sbi)->nat_bits; 1940 NM_I(sbi)->nat_bits = NULL; 1941 if (lock) 1942 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1943 1944 kvfree(nat_bits); 1945 } 1946 1947 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 1948 struct cp_control *cpc) 1949 { 1950 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 1951 1952 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 1953 } 1954 1955 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 1956 { 1957 down_read(&sbi->cp_rwsem); 1958 } 1959 1960 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 1961 { 1962 return down_read_trylock(&sbi->cp_rwsem); 1963 } 1964 1965 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 1966 { 1967 up_read(&sbi->cp_rwsem); 1968 } 1969 1970 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 1971 { 1972 down_write(&sbi->cp_rwsem); 1973 } 1974 1975 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 1976 { 1977 up_write(&sbi->cp_rwsem); 1978 } 1979 1980 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 1981 { 1982 int reason = CP_SYNC; 1983 1984 if (test_opt(sbi, FASTBOOT)) 1985 reason = CP_FASTBOOT; 1986 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 1987 reason = CP_UMOUNT; 1988 return reason; 1989 } 1990 1991 static inline bool __remain_node_summaries(int reason) 1992 { 1993 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 1994 } 1995 1996 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 1997 { 1998 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 1999 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 2000 } 2001 2002 /* 2003 * Check whether the inode has blocks or not 2004 */ 2005 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 2006 { 2007 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 2008 2009 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 2010 } 2011 2012 static inline bool f2fs_has_xattr_block(unsigned int ofs) 2013 { 2014 return ofs == XATTR_NODE_OFFSET; 2015 } 2016 2017 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 2018 struct inode *inode, bool cap) 2019 { 2020 if (!inode) 2021 return true; 2022 if (!test_opt(sbi, RESERVE_ROOT)) 2023 return false; 2024 if (IS_NOQUOTA(inode)) 2025 return true; 2026 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 2027 return true; 2028 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 2029 in_group_p(F2FS_OPTION(sbi).s_resgid)) 2030 return true; 2031 if (cap && capable(CAP_SYS_RESOURCE)) 2032 return true; 2033 return false; 2034 } 2035 2036 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 2037 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 2038 struct inode *inode, blkcnt_t *count) 2039 { 2040 blkcnt_t diff = 0, release = 0; 2041 block_t avail_user_block_count; 2042 int ret; 2043 2044 ret = dquot_reserve_block(inode, *count); 2045 if (ret) 2046 return ret; 2047 2048 if (time_to_inject(sbi, FAULT_BLOCK)) { 2049 f2fs_show_injection_info(sbi, FAULT_BLOCK); 2050 release = *count; 2051 goto release_quota; 2052 } 2053 2054 /* 2055 * let's increase this in prior to actual block count change in order 2056 * for f2fs_sync_file to avoid data races when deciding checkpoint. 2057 */ 2058 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 2059 2060 spin_lock(&sbi->stat_lock); 2061 sbi->total_valid_block_count += (block_t)(*count); 2062 avail_user_block_count = sbi->user_block_count - 2063 sbi->current_reserved_blocks; 2064 2065 if (!__allow_reserved_blocks(sbi, inode, true)) 2066 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 2067 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { 2068 if (avail_user_block_count > sbi->unusable_block_count) 2069 avail_user_block_count -= sbi->unusable_block_count; 2070 else 2071 avail_user_block_count = 0; 2072 } 2073 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 2074 diff = sbi->total_valid_block_count - avail_user_block_count; 2075 if (diff > *count) 2076 diff = *count; 2077 *count -= diff; 2078 release = diff; 2079 sbi->total_valid_block_count -= diff; 2080 if (!*count) { 2081 spin_unlock(&sbi->stat_lock); 2082 goto enospc; 2083 } 2084 } 2085 spin_unlock(&sbi->stat_lock); 2086 2087 if (unlikely(release)) { 2088 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2089 dquot_release_reservation_block(inode, release); 2090 } 2091 f2fs_i_blocks_write(inode, *count, true, true); 2092 return 0; 2093 2094 enospc: 2095 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2096 release_quota: 2097 dquot_release_reservation_block(inode, release); 2098 return -ENOSPC; 2099 } 2100 2101 __printf(2, 3) 2102 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...); 2103 2104 #define f2fs_err(sbi, fmt, ...) \ 2105 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__) 2106 #define f2fs_warn(sbi, fmt, ...) \ 2107 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__) 2108 #define f2fs_notice(sbi, fmt, ...) \ 2109 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__) 2110 #define f2fs_info(sbi, fmt, ...) \ 2111 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__) 2112 #define f2fs_debug(sbi, fmt, ...) \ 2113 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__) 2114 2115 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 2116 struct inode *inode, 2117 block_t count) 2118 { 2119 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 2120 2121 spin_lock(&sbi->stat_lock); 2122 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 2123 sbi->total_valid_block_count -= (block_t)count; 2124 if (sbi->reserved_blocks && 2125 sbi->current_reserved_blocks < sbi->reserved_blocks) 2126 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 2127 sbi->current_reserved_blocks + count); 2128 spin_unlock(&sbi->stat_lock); 2129 if (unlikely(inode->i_blocks < sectors)) { 2130 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu", 2131 inode->i_ino, 2132 (unsigned long long)inode->i_blocks, 2133 (unsigned long long)sectors); 2134 set_sbi_flag(sbi, SBI_NEED_FSCK); 2135 return; 2136 } 2137 f2fs_i_blocks_write(inode, count, false, true); 2138 } 2139 2140 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 2141 { 2142 atomic_inc(&sbi->nr_pages[count_type]); 2143 2144 if (count_type == F2FS_DIRTY_DENTS || 2145 count_type == F2FS_DIRTY_NODES || 2146 count_type == F2FS_DIRTY_META || 2147 count_type == F2FS_DIRTY_QDATA || 2148 count_type == F2FS_DIRTY_IMETA) 2149 set_sbi_flag(sbi, SBI_IS_DIRTY); 2150 } 2151 2152 static inline void inode_inc_dirty_pages(struct inode *inode) 2153 { 2154 atomic_inc(&F2FS_I(inode)->dirty_pages); 2155 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2156 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2157 if (IS_NOQUOTA(inode)) 2158 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2159 } 2160 2161 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 2162 { 2163 atomic_dec(&sbi->nr_pages[count_type]); 2164 } 2165 2166 static inline void inode_dec_dirty_pages(struct inode *inode) 2167 { 2168 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 2169 !S_ISLNK(inode->i_mode)) 2170 return; 2171 2172 atomic_dec(&F2FS_I(inode)->dirty_pages); 2173 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2174 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2175 if (IS_NOQUOTA(inode)) 2176 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2177 } 2178 2179 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 2180 { 2181 return atomic_read(&sbi->nr_pages[count_type]); 2182 } 2183 2184 static inline int get_dirty_pages(struct inode *inode) 2185 { 2186 return atomic_read(&F2FS_I(inode)->dirty_pages); 2187 } 2188 2189 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 2190 { 2191 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 2192 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 2193 sbi->log_blocks_per_seg; 2194 2195 return segs / sbi->segs_per_sec; 2196 } 2197 2198 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 2199 { 2200 return sbi->total_valid_block_count; 2201 } 2202 2203 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 2204 { 2205 return sbi->discard_blks; 2206 } 2207 2208 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 2209 { 2210 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2211 2212 /* return NAT or SIT bitmap */ 2213 if (flag == NAT_BITMAP) 2214 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 2215 else if (flag == SIT_BITMAP) 2216 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 2217 2218 return 0; 2219 } 2220 2221 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 2222 { 2223 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 2224 } 2225 2226 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 2227 { 2228 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2229 void *tmp_ptr = &ckpt->sit_nat_version_bitmap; 2230 int offset; 2231 2232 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 2233 offset = (flag == SIT_BITMAP) ? 2234 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 2235 /* 2236 * if large_nat_bitmap feature is enabled, leave checksum 2237 * protection for all nat/sit bitmaps. 2238 */ 2239 return tmp_ptr + offset + sizeof(__le32); 2240 } 2241 2242 if (__cp_payload(sbi) > 0) { 2243 if (flag == NAT_BITMAP) 2244 return &ckpt->sit_nat_version_bitmap; 2245 else 2246 return (unsigned char *)ckpt + F2FS_BLKSIZE; 2247 } else { 2248 offset = (flag == NAT_BITMAP) ? 2249 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 2250 return tmp_ptr + offset; 2251 } 2252 } 2253 2254 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 2255 { 2256 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2257 2258 if (sbi->cur_cp_pack == 2) 2259 start_addr += sbi->blocks_per_seg; 2260 return start_addr; 2261 } 2262 2263 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 2264 { 2265 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2266 2267 if (sbi->cur_cp_pack == 1) 2268 start_addr += sbi->blocks_per_seg; 2269 return start_addr; 2270 } 2271 2272 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 2273 { 2274 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 2275 } 2276 2277 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 2278 { 2279 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 2280 } 2281 2282 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 2283 struct inode *inode, bool is_inode) 2284 { 2285 block_t valid_block_count; 2286 unsigned int valid_node_count, user_block_count; 2287 int err; 2288 2289 if (is_inode) { 2290 if (inode) { 2291 err = dquot_alloc_inode(inode); 2292 if (err) 2293 return err; 2294 } 2295 } else { 2296 err = dquot_reserve_block(inode, 1); 2297 if (err) 2298 return err; 2299 } 2300 2301 if (time_to_inject(sbi, FAULT_BLOCK)) { 2302 f2fs_show_injection_info(sbi, FAULT_BLOCK); 2303 goto enospc; 2304 } 2305 2306 spin_lock(&sbi->stat_lock); 2307 2308 valid_block_count = sbi->total_valid_block_count + 2309 sbi->current_reserved_blocks + 1; 2310 2311 if (!__allow_reserved_blocks(sbi, inode, false)) 2312 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 2313 user_block_count = sbi->user_block_count; 2314 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 2315 user_block_count -= sbi->unusable_block_count; 2316 2317 if (unlikely(valid_block_count > user_block_count)) { 2318 spin_unlock(&sbi->stat_lock); 2319 goto enospc; 2320 } 2321 2322 valid_node_count = sbi->total_valid_node_count + 1; 2323 if (unlikely(valid_node_count > sbi->total_node_count)) { 2324 spin_unlock(&sbi->stat_lock); 2325 goto enospc; 2326 } 2327 2328 sbi->total_valid_node_count++; 2329 sbi->total_valid_block_count++; 2330 spin_unlock(&sbi->stat_lock); 2331 2332 if (inode) { 2333 if (is_inode) 2334 f2fs_mark_inode_dirty_sync(inode, true); 2335 else 2336 f2fs_i_blocks_write(inode, 1, true, true); 2337 } 2338 2339 percpu_counter_inc(&sbi->alloc_valid_block_count); 2340 return 0; 2341 2342 enospc: 2343 if (is_inode) { 2344 if (inode) 2345 dquot_free_inode(inode); 2346 } else { 2347 dquot_release_reservation_block(inode, 1); 2348 } 2349 return -ENOSPC; 2350 } 2351 2352 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2353 struct inode *inode, bool is_inode) 2354 { 2355 spin_lock(&sbi->stat_lock); 2356 2357 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2358 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2359 2360 sbi->total_valid_node_count--; 2361 sbi->total_valid_block_count--; 2362 if (sbi->reserved_blocks && 2363 sbi->current_reserved_blocks < sbi->reserved_blocks) 2364 sbi->current_reserved_blocks++; 2365 2366 spin_unlock(&sbi->stat_lock); 2367 2368 if (is_inode) { 2369 dquot_free_inode(inode); 2370 } else { 2371 if (unlikely(inode->i_blocks == 0)) { 2372 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu", 2373 inode->i_ino, 2374 (unsigned long long)inode->i_blocks); 2375 set_sbi_flag(sbi, SBI_NEED_FSCK); 2376 return; 2377 } 2378 f2fs_i_blocks_write(inode, 1, false, true); 2379 } 2380 } 2381 2382 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2383 { 2384 return sbi->total_valid_node_count; 2385 } 2386 2387 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2388 { 2389 percpu_counter_inc(&sbi->total_valid_inode_count); 2390 } 2391 2392 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2393 { 2394 percpu_counter_dec(&sbi->total_valid_inode_count); 2395 } 2396 2397 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2398 { 2399 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2400 } 2401 2402 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2403 pgoff_t index, bool for_write) 2404 { 2405 struct page *page; 2406 2407 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2408 if (!for_write) 2409 page = find_get_page_flags(mapping, index, 2410 FGP_LOCK | FGP_ACCESSED); 2411 else 2412 page = find_lock_page(mapping, index); 2413 if (page) 2414 return page; 2415 2416 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2417 f2fs_show_injection_info(F2FS_M_SB(mapping), 2418 FAULT_PAGE_ALLOC); 2419 return NULL; 2420 } 2421 } 2422 2423 if (!for_write) 2424 return grab_cache_page(mapping, index); 2425 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2426 } 2427 2428 static inline struct page *f2fs_pagecache_get_page( 2429 struct address_space *mapping, pgoff_t index, 2430 int fgp_flags, gfp_t gfp_mask) 2431 { 2432 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2433 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET); 2434 return NULL; 2435 } 2436 2437 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2438 } 2439 2440 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2441 { 2442 char *src_kaddr = kmap(src); 2443 char *dst_kaddr = kmap(dst); 2444 2445 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2446 kunmap(dst); 2447 kunmap(src); 2448 } 2449 2450 static inline void f2fs_put_page(struct page *page, int unlock) 2451 { 2452 if (!page) 2453 return; 2454 2455 if (unlock) { 2456 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2457 unlock_page(page); 2458 } 2459 put_page(page); 2460 } 2461 2462 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2463 { 2464 if (dn->node_page) 2465 f2fs_put_page(dn->node_page, 1); 2466 if (dn->inode_page && dn->node_page != dn->inode_page) 2467 f2fs_put_page(dn->inode_page, 0); 2468 dn->node_page = NULL; 2469 dn->inode_page = NULL; 2470 } 2471 2472 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2473 size_t size) 2474 { 2475 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2476 } 2477 2478 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2479 gfp_t flags) 2480 { 2481 void *entry; 2482 2483 entry = kmem_cache_alloc(cachep, flags); 2484 if (!entry) 2485 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2486 return entry; 2487 } 2488 2489 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type) 2490 { 2491 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2492 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2493 get_pages(sbi, F2FS_WB_CP_DATA) || 2494 get_pages(sbi, F2FS_DIO_READ) || 2495 get_pages(sbi, F2FS_DIO_WRITE)) 2496 return true; 2497 2498 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info && 2499 atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) 2500 return true; 2501 2502 if (SM_I(sbi) && SM_I(sbi)->fcc_info && 2503 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2504 return true; 2505 return false; 2506 } 2507 2508 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2509 { 2510 if (sbi->gc_mode == GC_URGENT_HIGH) 2511 return true; 2512 2513 if (is_inflight_io(sbi, type)) 2514 return false; 2515 2516 if (sbi->gc_mode == GC_URGENT_LOW && 2517 (type == DISCARD_TIME || type == GC_TIME)) 2518 return true; 2519 2520 return f2fs_time_over(sbi, type); 2521 } 2522 2523 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2524 unsigned long index, void *item) 2525 { 2526 while (radix_tree_insert(root, index, item)) 2527 cond_resched(); 2528 } 2529 2530 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2531 2532 static inline bool IS_INODE(struct page *page) 2533 { 2534 struct f2fs_node *p = F2FS_NODE(page); 2535 2536 return RAW_IS_INODE(p); 2537 } 2538 2539 static inline int offset_in_addr(struct f2fs_inode *i) 2540 { 2541 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2542 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2543 } 2544 2545 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2546 { 2547 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2548 } 2549 2550 static inline int f2fs_has_extra_attr(struct inode *inode); 2551 static inline block_t data_blkaddr(struct inode *inode, 2552 struct page *node_page, unsigned int offset) 2553 { 2554 struct f2fs_node *raw_node; 2555 __le32 *addr_array; 2556 int base = 0; 2557 bool is_inode = IS_INODE(node_page); 2558 2559 raw_node = F2FS_NODE(node_page); 2560 2561 if (is_inode) { 2562 if (!inode) 2563 /* from GC path only */ 2564 base = offset_in_addr(&raw_node->i); 2565 else if (f2fs_has_extra_attr(inode)) 2566 base = get_extra_isize(inode); 2567 } 2568 2569 addr_array = blkaddr_in_node(raw_node); 2570 return le32_to_cpu(addr_array[base + offset]); 2571 } 2572 2573 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn) 2574 { 2575 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node); 2576 } 2577 2578 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2579 { 2580 int mask; 2581 2582 addr += (nr >> 3); 2583 mask = 1 << (7 - (nr & 0x07)); 2584 return mask & *addr; 2585 } 2586 2587 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2588 { 2589 int mask; 2590 2591 addr += (nr >> 3); 2592 mask = 1 << (7 - (nr & 0x07)); 2593 *addr |= mask; 2594 } 2595 2596 static inline void f2fs_clear_bit(unsigned int nr, char *addr) 2597 { 2598 int mask; 2599 2600 addr += (nr >> 3); 2601 mask = 1 << (7 - (nr & 0x07)); 2602 *addr &= ~mask; 2603 } 2604 2605 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2606 { 2607 int mask; 2608 int ret; 2609 2610 addr += (nr >> 3); 2611 mask = 1 << (7 - (nr & 0x07)); 2612 ret = mask & *addr; 2613 *addr |= mask; 2614 return ret; 2615 } 2616 2617 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2618 { 2619 int mask; 2620 int ret; 2621 2622 addr += (nr >> 3); 2623 mask = 1 << (7 - (nr & 0x07)); 2624 ret = mask & *addr; 2625 *addr &= ~mask; 2626 return ret; 2627 } 2628 2629 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2630 { 2631 int mask; 2632 2633 addr += (nr >> 3); 2634 mask = 1 << (7 - (nr & 0x07)); 2635 *addr ^= mask; 2636 } 2637 2638 /* 2639 * On-disk inode flags (f2fs_inode::i_flags) 2640 */ 2641 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2642 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2643 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2644 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2645 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2646 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2647 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */ 2648 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2649 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2650 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2651 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */ 2652 2653 /* Flags that should be inherited by new inodes from their parent. */ 2654 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \ 2655 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2656 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL) 2657 2658 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2659 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2660 F2FS_CASEFOLD_FL)) 2661 2662 /* Flags that are appropriate for non-directories/regular files. */ 2663 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2664 2665 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2666 { 2667 if (S_ISDIR(mode)) 2668 return flags; 2669 else if (S_ISREG(mode)) 2670 return flags & F2FS_REG_FLMASK; 2671 else 2672 return flags & F2FS_OTHER_FLMASK; 2673 } 2674 2675 static inline void __mark_inode_dirty_flag(struct inode *inode, 2676 int flag, bool set) 2677 { 2678 switch (flag) { 2679 case FI_INLINE_XATTR: 2680 case FI_INLINE_DATA: 2681 case FI_INLINE_DENTRY: 2682 case FI_NEW_INODE: 2683 if (set) 2684 return; 2685 fallthrough; 2686 case FI_DATA_EXIST: 2687 case FI_INLINE_DOTS: 2688 case FI_PIN_FILE: 2689 f2fs_mark_inode_dirty_sync(inode, true); 2690 } 2691 } 2692 2693 static inline void set_inode_flag(struct inode *inode, int flag) 2694 { 2695 set_bit(flag, F2FS_I(inode)->flags); 2696 __mark_inode_dirty_flag(inode, flag, true); 2697 } 2698 2699 static inline int is_inode_flag_set(struct inode *inode, int flag) 2700 { 2701 return test_bit(flag, F2FS_I(inode)->flags); 2702 } 2703 2704 static inline void clear_inode_flag(struct inode *inode, int flag) 2705 { 2706 clear_bit(flag, F2FS_I(inode)->flags); 2707 __mark_inode_dirty_flag(inode, flag, false); 2708 } 2709 2710 static inline bool f2fs_verity_in_progress(struct inode *inode) 2711 { 2712 return IS_ENABLED(CONFIG_FS_VERITY) && 2713 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS); 2714 } 2715 2716 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2717 { 2718 F2FS_I(inode)->i_acl_mode = mode; 2719 set_inode_flag(inode, FI_ACL_MODE); 2720 f2fs_mark_inode_dirty_sync(inode, false); 2721 } 2722 2723 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2724 { 2725 if (inc) 2726 inc_nlink(inode); 2727 else 2728 drop_nlink(inode); 2729 f2fs_mark_inode_dirty_sync(inode, true); 2730 } 2731 2732 static inline void f2fs_i_blocks_write(struct inode *inode, 2733 block_t diff, bool add, bool claim) 2734 { 2735 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2736 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2737 2738 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2739 if (add) { 2740 if (claim) 2741 dquot_claim_block(inode, diff); 2742 else 2743 dquot_alloc_block_nofail(inode, diff); 2744 } else { 2745 dquot_free_block(inode, diff); 2746 } 2747 2748 f2fs_mark_inode_dirty_sync(inode, true); 2749 if (clean || recover) 2750 set_inode_flag(inode, FI_AUTO_RECOVER); 2751 } 2752 2753 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2754 { 2755 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2756 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2757 2758 if (i_size_read(inode) == i_size) 2759 return; 2760 2761 i_size_write(inode, i_size); 2762 f2fs_mark_inode_dirty_sync(inode, true); 2763 if (clean || recover) 2764 set_inode_flag(inode, FI_AUTO_RECOVER); 2765 } 2766 2767 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2768 { 2769 F2FS_I(inode)->i_current_depth = depth; 2770 f2fs_mark_inode_dirty_sync(inode, true); 2771 } 2772 2773 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2774 unsigned int count) 2775 { 2776 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2777 f2fs_mark_inode_dirty_sync(inode, true); 2778 } 2779 2780 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2781 { 2782 F2FS_I(inode)->i_xattr_nid = xnid; 2783 f2fs_mark_inode_dirty_sync(inode, true); 2784 } 2785 2786 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2787 { 2788 F2FS_I(inode)->i_pino = pino; 2789 f2fs_mark_inode_dirty_sync(inode, true); 2790 } 2791 2792 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2793 { 2794 struct f2fs_inode_info *fi = F2FS_I(inode); 2795 2796 if (ri->i_inline & F2FS_INLINE_XATTR) 2797 set_bit(FI_INLINE_XATTR, fi->flags); 2798 if (ri->i_inline & F2FS_INLINE_DATA) 2799 set_bit(FI_INLINE_DATA, fi->flags); 2800 if (ri->i_inline & F2FS_INLINE_DENTRY) 2801 set_bit(FI_INLINE_DENTRY, fi->flags); 2802 if (ri->i_inline & F2FS_DATA_EXIST) 2803 set_bit(FI_DATA_EXIST, fi->flags); 2804 if (ri->i_inline & F2FS_INLINE_DOTS) 2805 set_bit(FI_INLINE_DOTS, fi->flags); 2806 if (ri->i_inline & F2FS_EXTRA_ATTR) 2807 set_bit(FI_EXTRA_ATTR, fi->flags); 2808 if (ri->i_inline & F2FS_PIN_FILE) 2809 set_bit(FI_PIN_FILE, fi->flags); 2810 } 2811 2812 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2813 { 2814 ri->i_inline = 0; 2815 2816 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2817 ri->i_inline |= F2FS_INLINE_XATTR; 2818 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2819 ri->i_inline |= F2FS_INLINE_DATA; 2820 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2821 ri->i_inline |= F2FS_INLINE_DENTRY; 2822 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2823 ri->i_inline |= F2FS_DATA_EXIST; 2824 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2825 ri->i_inline |= F2FS_INLINE_DOTS; 2826 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2827 ri->i_inline |= F2FS_EXTRA_ATTR; 2828 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2829 ri->i_inline |= F2FS_PIN_FILE; 2830 } 2831 2832 static inline int f2fs_has_extra_attr(struct inode *inode) 2833 { 2834 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2835 } 2836 2837 static inline int f2fs_has_inline_xattr(struct inode *inode) 2838 { 2839 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2840 } 2841 2842 static inline int f2fs_compressed_file(struct inode *inode) 2843 { 2844 return S_ISREG(inode->i_mode) && 2845 is_inode_flag_set(inode, FI_COMPRESSED_FILE); 2846 } 2847 2848 static inline bool f2fs_need_compress_data(struct inode *inode) 2849 { 2850 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode; 2851 2852 if (!f2fs_compressed_file(inode)) 2853 return false; 2854 2855 if (compress_mode == COMPR_MODE_FS) 2856 return true; 2857 else if (compress_mode == COMPR_MODE_USER && 2858 is_inode_flag_set(inode, FI_ENABLE_COMPRESS)) 2859 return true; 2860 2861 return false; 2862 } 2863 2864 static inline unsigned int addrs_per_inode(struct inode *inode) 2865 { 2866 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) - 2867 get_inline_xattr_addrs(inode); 2868 2869 if (!f2fs_compressed_file(inode)) 2870 return addrs; 2871 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size); 2872 } 2873 2874 static inline unsigned int addrs_per_block(struct inode *inode) 2875 { 2876 if (!f2fs_compressed_file(inode)) 2877 return DEF_ADDRS_PER_BLOCK; 2878 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size); 2879 } 2880 2881 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2882 { 2883 struct f2fs_inode *ri = F2FS_INODE(page); 2884 2885 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2886 get_inline_xattr_addrs(inode)]); 2887 } 2888 2889 static inline int inline_xattr_size(struct inode *inode) 2890 { 2891 if (f2fs_has_inline_xattr(inode)) 2892 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2893 return 0; 2894 } 2895 2896 static inline int f2fs_has_inline_data(struct inode *inode) 2897 { 2898 return is_inode_flag_set(inode, FI_INLINE_DATA); 2899 } 2900 2901 static inline int f2fs_exist_data(struct inode *inode) 2902 { 2903 return is_inode_flag_set(inode, FI_DATA_EXIST); 2904 } 2905 2906 static inline int f2fs_has_inline_dots(struct inode *inode) 2907 { 2908 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2909 } 2910 2911 static inline int f2fs_is_mmap_file(struct inode *inode) 2912 { 2913 return is_inode_flag_set(inode, FI_MMAP_FILE); 2914 } 2915 2916 static inline bool f2fs_is_pinned_file(struct inode *inode) 2917 { 2918 return is_inode_flag_set(inode, FI_PIN_FILE); 2919 } 2920 2921 static inline bool f2fs_is_atomic_file(struct inode *inode) 2922 { 2923 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2924 } 2925 2926 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2927 { 2928 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 2929 } 2930 2931 static inline bool f2fs_is_volatile_file(struct inode *inode) 2932 { 2933 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 2934 } 2935 2936 static inline bool f2fs_is_first_block_written(struct inode *inode) 2937 { 2938 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 2939 } 2940 2941 static inline bool f2fs_is_drop_cache(struct inode *inode) 2942 { 2943 return is_inode_flag_set(inode, FI_DROP_CACHE); 2944 } 2945 2946 static inline void *inline_data_addr(struct inode *inode, struct page *page) 2947 { 2948 struct f2fs_inode *ri = F2FS_INODE(page); 2949 int extra_size = get_extra_isize(inode); 2950 2951 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 2952 } 2953 2954 static inline int f2fs_has_inline_dentry(struct inode *inode) 2955 { 2956 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 2957 } 2958 2959 static inline int is_file(struct inode *inode, int type) 2960 { 2961 return F2FS_I(inode)->i_advise & type; 2962 } 2963 2964 static inline void set_file(struct inode *inode, int type) 2965 { 2966 F2FS_I(inode)->i_advise |= type; 2967 f2fs_mark_inode_dirty_sync(inode, true); 2968 } 2969 2970 static inline void clear_file(struct inode *inode, int type) 2971 { 2972 F2FS_I(inode)->i_advise &= ~type; 2973 f2fs_mark_inode_dirty_sync(inode, true); 2974 } 2975 2976 static inline bool f2fs_is_time_consistent(struct inode *inode) 2977 { 2978 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 2979 return false; 2980 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 2981 return false; 2982 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 2983 return false; 2984 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 2985 &F2FS_I(inode)->i_crtime)) 2986 return false; 2987 return true; 2988 } 2989 2990 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 2991 { 2992 bool ret; 2993 2994 if (dsync) { 2995 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2996 2997 spin_lock(&sbi->inode_lock[DIRTY_META]); 2998 ret = list_empty(&F2FS_I(inode)->gdirty_list); 2999 spin_unlock(&sbi->inode_lock[DIRTY_META]); 3000 return ret; 3001 } 3002 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 3003 file_keep_isize(inode) || 3004 i_size_read(inode) & ~PAGE_MASK) 3005 return false; 3006 3007 if (!f2fs_is_time_consistent(inode)) 3008 return false; 3009 3010 spin_lock(&F2FS_I(inode)->i_size_lock); 3011 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 3012 spin_unlock(&F2FS_I(inode)->i_size_lock); 3013 3014 return ret; 3015 } 3016 3017 static inline bool f2fs_readonly(struct super_block *sb) 3018 { 3019 return sb_rdonly(sb); 3020 } 3021 3022 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 3023 { 3024 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 3025 } 3026 3027 static inline bool is_dot_dotdot(const u8 *name, size_t len) 3028 { 3029 if (len == 1 && name[0] == '.') 3030 return true; 3031 3032 if (len == 2 && name[0] == '.' && name[1] == '.') 3033 return true; 3034 3035 return false; 3036 } 3037 3038 static inline bool f2fs_may_extent_tree(struct inode *inode) 3039 { 3040 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3041 3042 if (!test_opt(sbi, EXTENT_CACHE) || 3043 is_inode_flag_set(inode, FI_NO_EXTENT) || 3044 is_inode_flag_set(inode, FI_COMPRESSED_FILE)) 3045 return false; 3046 3047 /* 3048 * for recovered files during mount do not create extents 3049 * if shrinker is not registered. 3050 */ 3051 if (list_empty(&sbi->s_list)) 3052 return false; 3053 3054 return S_ISREG(inode->i_mode); 3055 } 3056 3057 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 3058 size_t size, gfp_t flags) 3059 { 3060 if (time_to_inject(sbi, FAULT_KMALLOC)) { 3061 f2fs_show_injection_info(sbi, FAULT_KMALLOC); 3062 return NULL; 3063 } 3064 3065 return kmalloc(size, flags); 3066 } 3067 3068 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 3069 size_t size, gfp_t flags) 3070 { 3071 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 3072 } 3073 3074 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 3075 size_t size, gfp_t flags) 3076 { 3077 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 3078 f2fs_show_injection_info(sbi, FAULT_KVMALLOC); 3079 return NULL; 3080 } 3081 3082 return kvmalloc(size, flags); 3083 } 3084 3085 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 3086 size_t size, gfp_t flags) 3087 { 3088 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 3089 } 3090 3091 static inline int get_extra_isize(struct inode *inode) 3092 { 3093 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 3094 } 3095 3096 static inline int get_inline_xattr_addrs(struct inode *inode) 3097 { 3098 return F2FS_I(inode)->i_inline_xattr_size; 3099 } 3100 3101 #define f2fs_get_inode_mode(i) \ 3102 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 3103 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 3104 3105 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 3106 (offsetof(struct f2fs_inode, i_extra_end) - \ 3107 offsetof(struct f2fs_inode, i_extra_isize)) \ 3108 3109 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 3110 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 3111 ((offsetof(typeof(*(f2fs_inode)), field) + \ 3112 sizeof((f2fs_inode)->field)) \ 3113 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 3114 3115 #define DEFAULT_IOSTAT_PERIOD_MS 3000 3116 #define MIN_IOSTAT_PERIOD_MS 100 3117 /* maximum period of iostat tracing is 1 day */ 3118 #define MAX_IOSTAT_PERIOD_MS 8640000 3119 3120 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 3121 { 3122 int i; 3123 3124 spin_lock(&sbi->iostat_lock); 3125 for (i = 0; i < NR_IO_TYPE; i++) { 3126 sbi->rw_iostat[i] = 0; 3127 sbi->prev_rw_iostat[i] = 0; 3128 } 3129 spin_unlock(&sbi->iostat_lock); 3130 } 3131 3132 extern void f2fs_record_iostat(struct f2fs_sb_info *sbi); 3133 3134 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 3135 enum iostat_type type, unsigned long long io_bytes) 3136 { 3137 if (!sbi->iostat_enable) 3138 return; 3139 spin_lock(&sbi->iostat_lock); 3140 sbi->rw_iostat[type] += io_bytes; 3141 3142 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 3143 sbi->rw_iostat[APP_BUFFERED_IO] = 3144 sbi->rw_iostat[APP_WRITE_IO] - 3145 sbi->rw_iostat[APP_DIRECT_IO]; 3146 3147 if (type == APP_READ_IO || type == APP_DIRECT_READ_IO) 3148 sbi->rw_iostat[APP_BUFFERED_READ_IO] = 3149 sbi->rw_iostat[APP_READ_IO] - 3150 sbi->rw_iostat[APP_DIRECT_READ_IO]; 3151 spin_unlock(&sbi->iostat_lock); 3152 3153 f2fs_record_iostat(sbi); 3154 } 3155 3156 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 3157 3158 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META) 3159 3160 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3161 block_t blkaddr, int type); 3162 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 3163 block_t blkaddr, int type) 3164 { 3165 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 3166 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.", 3167 blkaddr, type); 3168 f2fs_bug_on(sbi, 1); 3169 } 3170 } 3171 3172 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 3173 { 3174 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR || 3175 blkaddr == COMPRESS_ADDR) 3176 return false; 3177 return true; 3178 } 3179 3180 static inline void f2fs_set_page_private(struct page *page, 3181 unsigned long data) 3182 { 3183 if (PagePrivate(page)) 3184 return; 3185 3186 attach_page_private(page, (void *)data); 3187 } 3188 3189 static inline void f2fs_clear_page_private(struct page *page) 3190 { 3191 detach_page_private(page); 3192 } 3193 3194 /* 3195 * file.c 3196 */ 3197 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 3198 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 3199 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock); 3200 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); 3201 int f2fs_truncate(struct inode *inode); 3202 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path, 3203 struct kstat *stat, u32 request_mask, unsigned int flags); 3204 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry, 3205 struct iattr *attr); 3206 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 3207 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 3208 int f2fs_precache_extents(struct inode *inode); 3209 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 3210 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 3211 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 3212 int f2fs_pin_file_control(struct inode *inode, bool inc); 3213 3214 /* 3215 * inode.c 3216 */ 3217 void f2fs_set_inode_flags(struct inode *inode); 3218 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 3219 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 3220 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 3221 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 3222 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 3223 void f2fs_update_inode(struct inode *inode, struct page *node_page); 3224 void f2fs_update_inode_page(struct inode *inode); 3225 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 3226 void f2fs_evict_inode(struct inode *inode); 3227 void f2fs_handle_failed_inode(struct inode *inode); 3228 3229 /* 3230 * namei.c 3231 */ 3232 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 3233 bool hot, bool set); 3234 struct dentry *f2fs_get_parent(struct dentry *child); 3235 3236 /* 3237 * dir.c 3238 */ 3239 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 3240 int f2fs_init_casefolded_name(const struct inode *dir, 3241 struct f2fs_filename *fname); 3242 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname, 3243 int lookup, struct f2fs_filename *fname); 3244 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry, 3245 struct f2fs_filename *fname); 3246 void f2fs_free_filename(struct f2fs_filename *fname); 3247 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d, 3248 const struct f2fs_filename *fname, int *max_slots); 3249 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 3250 unsigned int start_pos, struct fscrypt_str *fstr); 3251 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 3252 struct f2fs_dentry_ptr *d); 3253 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 3254 const struct f2fs_filename *fname, struct page *dpage); 3255 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 3256 unsigned int current_depth); 3257 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 3258 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 3259 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 3260 const struct f2fs_filename *fname, 3261 struct page **res_page); 3262 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 3263 const struct qstr *child, struct page **res_page); 3264 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 3265 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 3266 struct page **page); 3267 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 3268 struct page *page, struct inode *inode); 3269 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage, 3270 const struct f2fs_filename *fname); 3271 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 3272 const struct fscrypt_str *name, f2fs_hash_t name_hash, 3273 unsigned int bit_pos); 3274 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname, 3275 struct inode *inode, nid_t ino, umode_t mode); 3276 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname, 3277 struct inode *inode, nid_t ino, umode_t mode); 3278 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 3279 struct inode *inode, nid_t ino, umode_t mode); 3280 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 3281 struct inode *dir, struct inode *inode); 3282 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 3283 bool f2fs_empty_dir(struct inode *dir); 3284 3285 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 3286 { 3287 if (fscrypt_is_nokey_name(dentry)) 3288 return -ENOKEY; 3289 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 3290 inode, inode->i_ino, inode->i_mode); 3291 } 3292 3293 /* 3294 * super.c 3295 */ 3296 int f2fs_inode_dirtied(struct inode *inode, bool sync); 3297 void f2fs_inode_synced(struct inode *inode); 3298 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 3299 int f2fs_quota_sync(struct super_block *sb, int type); 3300 loff_t max_file_blocks(struct inode *inode); 3301 void f2fs_quota_off_umount(struct super_block *sb); 3302 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 3303 int f2fs_sync_fs(struct super_block *sb, int sync); 3304 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 3305 3306 /* 3307 * hash.c 3308 */ 3309 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname); 3310 3311 /* 3312 * node.c 3313 */ 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 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno); 3391 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi); 3392 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi); 3393 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi); 3394 void f2fs_get_new_segment(struct f2fs_sb_info *sbi, 3395 unsigned int *newseg, bool new_sec, int dir); 3396 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type, 3397 unsigned int start, unsigned int end); 3398 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type); 3399 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3400 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3401 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3402 struct cp_control *cpc); 3403 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3404 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3405 block_t blk_addr); 3406 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3407 enum iostat_type io_type); 3408 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3409 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3410 struct f2fs_io_info *fio); 3411 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3412 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3413 block_t old_blkaddr, block_t new_blkaddr, 3414 bool recover_curseg, bool recover_newaddr, 3415 bool from_gc); 3416 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3417 block_t old_addr, block_t new_addr, 3418 unsigned char version, bool recover_curseg, 3419 bool recover_newaddr); 3420 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3421 block_t old_blkaddr, block_t *new_blkaddr, 3422 struct f2fs_summary *sum, int type, 3423 struct f2fs_io_info *fio); 3424 void f2fs_wait_on_page_writeback(struct page *page, 3425 enum page_type type, bool ordered, bool locked); 3426 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3427 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3428 block_t len); 3429 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3430 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3431 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3432 unsigned int val, int alloc); 3433 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3434 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi); 3435 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi); 3436 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3437 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3438 int __init f2fs_create_segment_manager_caches(void); 3439 void f2fs_destroy_segment_manager_caches(void); 3440 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3441 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3442 enum page_type type, enum temp_type temp); 3443 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi, 3444 unsigned int segno); 3445 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi, 3446 unsigned int segno); 3447 3448 /* 3449 * checkpoint.c 3450 */ 3451 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3452 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3453 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3454 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index); 3455 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3456 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3457 block_t blkaddr, int type); 3458 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3459 int type, bool sync); 3460 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3461 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3462 long nr_to_write, enum iostat_type io_type); 3463 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3464 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3465 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3466 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3467 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3468 unsigned int devidx, int type); 3469 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3470 unsigned int devidx, int type); 3471 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3472 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3473 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3474 void f2fs_add_orphan_inode(struct inode *inode); 3475 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3476 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3477 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3478 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3479 void f2fs_remove_dirty_inode(struct inode *inode); 3480 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3481 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type); 3482 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi); 3483 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3484 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3485 int __init f2fs_create_checkpoint_caches(void); 3486 void f2fs_destroy_checkpoint_caches(void); 3487 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi); 3488 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi); 3489 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi); 3490 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi); 3491 3492 /* 3493 * data.c 3494 */ 3495 int __init f2fs_init_bioset(void); 3496 void f2fs_destroy_bioset(void); 3497 int f2fs_init_bio_entry_cache(void); 3498 void f2fs_destroy_bio_entry_cache(void); 3499 void f2fs_submit_bio(struct f2fs_sb_info *sbi, 3500 struct bio *bio, enum page_type type); 3501 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3502 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3503 struct inode *inode, struct page *page, 3504 nid_t ino, enum page_type type); 3505 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi, 3506 struct bio **bio, struct page *page); 3507 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3508 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3509 int f2fs_merge_page_bio(struct f2fs_io_info *fio); 3510 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3511 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3512 block_t blk_addr, struct bio *bio); 3513 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3514 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3515 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3516 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3517 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3518 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3519 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3520 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3521 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3522 int op_flags, bool for_write); 3523 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3524 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3525 bool for_write); 3526 struct page *f2fs_get_new_data_page(struct inode *inode, 3527 struct page *ipage, pgoff_t index, bool new_i_size); 3528 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3529 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3530 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3531 int create, int flag); 3532 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3533 u64 start, u64 len); 3534 int f2fs_encrypt_one_page(struct f2fs_io_info *fio); 3535 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3536 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3537 int f2fs_write_single_data_page(struct page *page, int *submitted, 3538 struct bio **bio, sector_t *last_block, 3539 struct writeback_control *wbc, 3540 enum iostat_type io_type, 3541 int compr_blocks, bool allow_balance); 3542 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3543 unsigned int length); 3544 int f2fs_release_page(struct page *page, gfp_t wait); 3545 #ifdef CONFIG_MIGRATION 3546 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3547 struct page *page, enum migrate_mode mode); 3548 #endif 3549 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3550 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3551 int f2fs_init_post_read_processing(void); 3552 void f2fs_destroy_post_read_processing(void); 3553 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi); 3554 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi); 3555 3556 /* 3557 * gc.c 3558 */ 3559 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3560 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3561 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3562 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force, 3563 unsigned int segno); 3564 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3565 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count); 3566 int __init f2fs_create_garbage_collection_cache(void); 3567 void f2fs_destroy_garbage_collection_cache(void); 3568 3569 /* 3570 * recovery.c 3571 */ 3572 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3573 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3574 3575 /* 3576 * debug.c 3577 */ 3578 #ifdef CONFIG_F2FS_STAT_FS 3579 struct f2fs_stat_info { 3580 struct list_head stat_list; 3581 struct f2fs_sb_info *sbi; 3582 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3583 int main_area_segs, main_area_sections, main_area_zones; 3584 unsigned long long hit_largest, hit_cached, hit_rbtree; 3585 unsigned long long hit_total, total_ext; 3586 int ext_tree, zombie_tree, ext_node; 3587 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3588 int ndirty_data, ndirty_qdata; 3589 int inmem_pages; 3590 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3591 int nats, dirty_nats, sits, dirty_sits; 3592 int free_nids, avail_nids, alloc_nids; 3593 int total_count, utilization; 3594 int bg_gc, nr_wb_cp_data, nr_wb_data; 3595 int nr_rd_data, nr_rd_node, nr_rd_meta; 3596 int nr_dio_read, nr_dio_write; 3597 unsigned int io_skip_bggc, other_skip_bggc; 3598 int nr_flushing, nr_flushed, flush_list_empty; 3599 int nr_discarding, nr_discarded; 3600 int nr_discard_cmd; 3601 unsigned int undiscard_blks; 3602 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt; 3603 unsigned int cur_ckpt_time, peak_ckpt_time; 3604 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3605 int compr_inode; 3606 unsigned long long compr_blocks; 3607 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3608 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3609 unsigned int bimodal, avg_vblocks; 3610 int util_free, util_valid, util_invalid; 3611 int rsvd_segs, overp_segs; 3612 int dirty_count, node_pages, meta_pages; 3613 int prefree_count, call_count, cp_count, bg_cp_count; 3614 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3615 int bg_node_segs, bg_data_segs; 3616 int tot_blks, data_blks, node_blks; 3617 int bg_data_blks, bg_node_blks; 3618 unsigned long long skipped_atomic_files[2]; 3619 int curseg[NR_CURSEG_TYPE]; 3620 int cursec[NR_CURSEG_TYPE]; 3621 int curzone[NR_CURSEG_TYPE]; 3622 unsigned int dirty_seg[NR_CURSEG_TYPE]; 3623 unsigned int full_seg[NR_CURSEG_TYPE]; 3624 unsigned int valid_blks[NR_CURSEG_TYPE]; 3625 3626 unsigned int meta_count[META_MAX]; 3627 unsigned int segment_count[2]; 3628 unsigned int block_count[2]; 3629 unsigned int inplace_count; 3630 unsigned long long base_mem, cache_mem, page_mem; 3631 }; 3632 3633 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3634 { 3635 return (struct f2fs_stat_info *)sbi->stat_info; 3636 } 3637 3638 #define stat_inc_cp_count(si) ((si)->cp_count++) 3639 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3640 #define stat_inc_call_count(si) ((si)->call_count++) 3641 #define stat_inc_bggc_count(si) ((si)->bg_gc++) 3642 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3643 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3644 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3645 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3646 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3647 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3648 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3649 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3650 #define stat_inc_inline_xattr(inode) \ 3651 do { \ 3652 if (f2fs_has_inline_xattr(inode)) \ 3653 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3654 } while (0) 3655 #define stat_dec_inline_xattr(inode) \ 3656 do { \ 3657 if (f2fs_has_inline_xattr(inode)) \ 3658 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3659 } while (0) 3660 #define stat_inc_inline_inode(inode) \ 3661 do { \ 3662 if (f2fs_has_inline_data(inode)) \ 3663 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3664 } while (0) 3665 #define stat_dec_inline_inode(inode) \ 3666 do { \ 3667 if (f2fs_has_inline_data(inode)) \ 3668 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3669 } while (0) 3670 #define stat_inc_inline_dir(inode) \ 3671 do { \ 3672 if (f2fs_has_inline_dentry(inode)) \ 3673 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3674 } while (0) 3675 #define stat_dec_inline_dir(inode) \ 3676 do { \ 3677 if (f2fs_has_inline_dentry(inode)) \ 3678 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3679 } while (0) 3680 #define stat_inc_compr_inode(inode) \ 3681 do { \ 3682 if (f2fs_compressed_file(inode)) \ 3683 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \ 3684 } while (0) 3685 #define stat_dec_compr_inode(inode) \ 3686 do { \ 3687 if (f2fs_compressed_file(inode)) \ 3688 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \ 3689 } while (0) 3690 #define stat_add_compr_blocks(inode, blocks) \ 3691 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3692 #define stat_sub_compr_blocks(inode, blocks) \ 3693 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3694 #define stat_inc_meta_count(sbi, blkaddr) \ 3695 do { \ 3696 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3697 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3698 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3699 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3700 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3701 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3702 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3703 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3704 } while (0) 3705 #define stat_inc_seg_type(sbi, curseg) \ 3706 ((sbi)->segment_count[(curseg)->alloc_type]++) 3707 #define stat_inc_block_count(sbi, curseg) \ 3708 ((sbi)->block_count[(curseg)->alloc_type]++) 3709 #define stat_inc_inplace_blocks(sbi) \ 3710 (atomic_inc(&(sbi)->inplace_count)) 3711 #define stat_update_max_atomic_write(inode) \ 3712 do { \ 3713 int cur = F2FS_I_SB(inode)->atomic_files; \ 3714 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3715 if (cur > max) \ 3716 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3717 } while (0) 3718 #define stat_inc_volatile_write(inode) \ 3719 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3720 #define stat_dec_volatile_write(inode) \ 3721 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3722 #define stat_update_max_volatile_write(inode) \ 3723 do { \ 3724 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3725 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3726 if (cur > max) \ 3727 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3728 } while (0) 3729 #define stat_inc_seg_count(sbi, type, gc_type) \ 3730 do { \ 3731 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3732 si->tot_segs++; \ 3733 if ((type) == SUM_TYPE_DATA) { \ 3734 si->data_segs++; \ 3735 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3736 } else { \ 3737 si->node_segs++; \ 3738 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3739 } \ 3740 } while (0) 3741 3742 #define stat_inc_tot_blk_count(si, blks) \ 3743 ((si)->tot_blks += (blks)) 3744 3745 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3746 do { \ 3747 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3748 stat_inc_tot_blk_count(si, blks); \ 3749 si->data_blks += (blks); \ 3750 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3751 } while (0) 3752 3753 #define stat_inc_node_blk_count(sbi, blks, gc_type) \ 3754 do { \ 3755 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3756 stat_inc_tot_blk_count(si, blks); \ 3757 si->node_blks += (blks); \ 3758 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3759 } while (0) 3760 3761 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3762 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3763 void __init f2fs_create_root_stats(void); 3764 void f2fs_destroy_root_stats(void); 3765 void f2fs_update_sit_info(struct f2fs_sb_info *sbi); 3766 #else 3767 #define stat_inc_cp_count(si) do { } while (0) 3768 #define stat_inc_bg_cp_count(si) do { } while (0) 3769 #define stat_inc_call_count(si) do { } while (0) 3770 #define stat_inc_bggc_count(si) do { } while (0) 3771 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3772 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3773 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3774 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3775 #define stat_inc_total_hit(sbi) do { } while (0) 3776 #define stat_inc_rbtree_node_hit(sbi) do { } while (0) 3777 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3778 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3779 #define stat_inc_inline_xattr(inode) do { } while (0) 3780 #define stat_dec_inline_xattr(inode) do { } while (0) 3781 #define stat_inc_inline_inode(inode) do { } while (0) 3782 #define stat_dec_inline_inode(inode) do { } while (0) 3783 #define stat_inc_inline_dir(inode) do { } while (0) 3784 #define stat_dec_inline_dir(inode) do { } while (0) 3785 #define stat_inc_compr_inode(inode) do { } while (0) 3786 #define stat_dec_compr_inode(inode) do { } while (0) 3787 #define stat_add_compr_blocks(inode, blocks) do { } while (0) 3788 #define stat_sub_compr_blocks(inode, blocks) do { } while (0) 3789 #define stat_update_max_atomic_write(inode) do { } while (0) 3790 #define stat_inc_volatile_write(inode) do { } while (0) 3791 #define stat_dec_volatile_write(inode) do { } while (0) 3792 #define stat_update_max_volatile_write(inode) do { } while (0) 3793 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3794 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3795 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3796 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3797 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3798 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3799 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3800 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3801 3802 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3803 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3804 static inline void __init f2fs_create_root_stats(void) { } 3805 static inline void f2fs_destroy_root_stats(void) { } 3806 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {} 3807 #endif 3808 3809 extern const struct file_operations f2fs_dir_operations; 3810 extern const struct file_operations f2fs_file_operations; 3811 extern const struct inode_operations f2fs_file_inode_operations; 3812 extern const struct address_space_operations f2fs_dblock_aops; 3813 extern const struct address_space_operations f2fs_node_aops; 3814 extern const struct address_space_operations f2fs_meta_aops; 3815 extern const struct inode_operations f2fs_dir_inode_operations; 3816 extern const struct inode_operations f2fs_symlink_inode_operations; 3817 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3818 extern const struct inode_operations f2fs_special_inode_operations; 3819 extern struct kmem_cache *f2fs_inode_entry_slab; 3820 3821 /* 3822 * inline.c 3823 */ 3824 bool f2fs_may_inline_data(struct inode *inode); 3825 bool f2fs_may_inline_dentry(struct inode *inode); 3826 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3827 void f2fs_truncate_inline_inode(struct inode *inode, 3828 struct page *ipage, u64 from); 3829 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3830 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3831 int f2fs_convert_inline_inode(struct inode *inode); 3832 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry); 3833 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3834 int f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3835 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3836 const struct f2fs_filename *fname, 3837 struct page **res_page); 3838 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3839 struct page *ipage); 3840 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname, 3841 struct inode *inode, nid_t ino, umode_t mode); 3842 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3843 struct page *page, struct inode *dir, 3844 struct inode *inode); 3845 bool f2fs_empty_inline_dir(struct inode *dir); 3846 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3847 struct fscrypt_str *fstr); 3848 int f2fs_inline_data_fiemap(struct inode *inode, 3849 struct fiemap_extent_info *fieinfo, 3850 __u64 start, __u64 len); 3851 3852 /* 3853 * shrinker.c 3854 */ 3855 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3856 struct shrink_control *sc); 3857 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3858 struct shrink_control *sc); 3859 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3860 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3861 3862 /* 3863 * extent_cache.c 3864 */ 3865 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3866 struct rb_entry *cached_re, unsigned int ofs); 3867 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi, 3868 struct rb_root_cached *root, 3869 struct rb_node **parent, 3870 unsigned long long key, bool *left_most); 3871 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3872 struct rb_root_cached *root, 3873 struct rb_node **parent, 3874 unsigned int ofs, bool *leftmost); 3875 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3876 struct rb_entry *cached_re, unsigned int ofs, 3877 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3878 struct rb_node ***insert_p, struct rb_node **insert_parent, 3879 bool force, bool *leftmost); 3880 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3881 struct rb_root_cached *root, bool check_key); 3882 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3883 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage); 3884 void f2fs_drop_extent_tree(struct inode *inode); 3885 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3886 void f2fs_destroy_extent_tree(struct inode *inode); 3887 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3888 struct extent_info *ei); 3889 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3890 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3891 pgoff_t fofs, block_t blkaddr, unsigned int len); 3892 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3893 int __init f2fs_create_extent_cache(void); 3894 void f2fs_destroy_extent_cache(void); 3895 3896 /* 3897 * sysfs.c 3898 */ 3899 int __init f2fs_init_sysfs(void); 3900 void f2fs_exit_sysfs(void); 3901 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3902 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3903 3904 /* verity.c */ 3905 extern const struct fsverity_operations f2fs_verityops; 3906 3907 /* 3908 * crypto support 3909 */ 3910 static inline bool f2fs_encrypted_file(struct inode *inode) 3911 { 3912 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode); 3913 } 3914 3915 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3916 { 3917 #ifdef CONFIG_FS_ENCRYPTION 3918 file_set_encrypt(inode); 3919 f2fs_set_inode_flags(inode); 3920 #endif 3921 } 3922 3923 /* 3924 * Returns true if the reads of the inode's data need to undergo some 3925 * postprocessing step, like decryption or authenticity verification. 3926 */ 3927 static inline bool f2fs_post_read_required(struct inode *inode) 3928 { 3929 return f2fs_encrypted_file(inode) || fsverity_active(inode) || 3930 f2fs_compressed_file(inode); 3931 } 3932 3933 /* 3934 * compress.c 3935 */ 3936 #ifdef CONFIG_F2FS_FS_COMPRESSION 3937 bool f2fs_is_compressed_page(struct page *page); 3938 struct page *f2fs_compress_control_page(struct page *page); 3939 int f2fs_prepare_compress_overwrite(struct inode *inode, 3940 struct page **pagep, pgoff_t index, void **fsdata); 3941 bool f2fs_compress_write_end(struct inode *inode, void *fsdata, 3942 pgoff_t index, unsigned copied); 3943 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock); 3944 void f2fs_compress_write_end_io(struct bio *bio, struct page *page); 3945 bool f2fs_is_compress_backend_ready(struct inode *inode); 3946 int f2fs_init_compress_mempool(void); 3947 void f2fs_destroy_compress_mempool(void); 3948 void f2fs_end_read_compressed_page(struct page *page, bool failed); 3949 bool f2fs_cluster_is_empty(struct compress_ctx *cc); 3950 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); 3951 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); 3952 int f2fs_write_multi_pages(struct compress_ctx *cc, 3953 int *submitted, 3954 struct writeback_control *wbc, 3955 enum iostat_type io_type); 3956 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index); 3957 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret, 3958 unsigned nr_pages, sector_t *last_block_in_bio, 3959 bool is_readahead, bool for_write); 3960 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc); 3961 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed); 3962 void f2fs_put_page_dic(struct page *page); 3963 int f2fs_init_compress_ctx(struct compress_ctx *cc); 3964 void f2fs_destroy_compress_ctx(struct compress_ctx *cc); 3965 void f2fs_init_compress_info(struct f2fs_sb_info *sbi); 3966 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi); 3967 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi); 3968 int __init f2fs_init_compress_cache(void); 3969 void f2fs_destroy_compress_cache(void); 3970 #define inc_compr_inode_stat(inode) \ 3971 do { \ 3972 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \ 3973 sbi->compr_new_inode++; \ 3974 } while (0) 3975 #define add_compr_block_stat(inode, blocks) \ 3976 do { \ 3977 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \ 3978 int diff = F2FS_I(inode)->i_cluster_size - blocks; \ 3979 sbi->compr_written_block += blocks; \ 3980 sbi->compr_saved_block += diff; \ 3981 } while (0) 3982 #else 3983 static inline bool f2fs_is_compressed_page(struct page *page) { return false; } 3984 static inline bool f2fs_is_compress_backend_ready(struct inode *inode) 3985 { 3986 if (!f2fs_compressed_file(inode)) 3987 return true; 3988 /* not support compression */ 3989 return false; 3990 } 3991 static inline struct page *f2fs_compress_control_page(struct page *page) 3992 { 3993 WARN_ON_ONCE(1); 3994 return ERR_PTR(-EINVAL); 3995 } 3996 static inline int f2fs_init_compress_mempool(void) { return 0; } 3997 static inline void f2fs_destroy_compress_mempool(void) { } 3998 static inline void f2fs_end_read_compressed_page(struct page *page, bool failed) 3999 { 4000 WARN_ON_ONCE(1); 4001 } 4002 static inline void f2fs_put_page_dic(struct page *page) 4003 { 4004 WARN_ON_ONCE(1); 4005 } 4006 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; } 4007 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { } 4008 static inline int __init f2fs_init_compress_cache(void) { return 0; } 4009 static inline void f2fs_destroy_compress_cache(void) { } 4010 #define inc_compr_inode_stat(inode) do { } while (0) 4011 #endif 4012 4013 static inline void set_compress_context(struct inode *inode) 4014 { 4015 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4016 4017 F2FS_I(inode)->i_compress_algorithm = 4018 F2FS_OPTION(sbi).compress_algorithm; 4019 F2FS_I(inode)->i_log_cluster_size = 4020 F2FS_OPTION(sbi).compress_log_size; 4021 F2FS_I(inode)->i_compress_flag = 4022 F2FS_OPTION(sbi).compress_chksum ? 4023 1 << COMPRESS_CHKSUM : 0; 4024 F2FS_I(inode)->i_cluster_size = 4025 1 << F2FS_I(inode)->i_log_cluster_size; 4026 if (F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 && 4027 F2FS_OPTION(sbi).compress_level) 4028 F2FS_I(inode)->i_compress_flag |= 4029 F2FS_OPTION(sbi).compress_level << 4030 COMPRESS_LEVEL_OFFSET; 4031 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL; 4032 set_inode_flag(inode, FI_COMPRESSED_FILE); 4033 stat_inc_compr_inode(inode); 4034 inc_compr_inode_stat(inode); 4035 f2fs_mark_inode_dirty_sync(inode, true); 4036 } 4037 4038 static inline bool f2fs_disable_compressed_file(struct inode *inode) 4039 { 4040 struct f2fs_inode_info *fi = F2FS_I(inode); 4041 4042 if (!f2fs_compressed_file(inode)) 4043 return true; 4044 if (S_ISREG(inode->i_mode) && 4045 (get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks))) 4046 return false; 4047 4048 fi->i_flags &= ~F2FS_COMPR_FL; 4049 stat_dec_compr_inode(inode); 4050 clear_inode_flag(inode, FI_COMPRESSED_FILE); 4051 f2fs_mark_inode_dirty_sync(inode, true); 4052 return true; 4053 } 4054 4055 #define F2FS_FEATURE_FUNCS(name, flagname) \ 4056 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 4057 { \ 4058 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 4059 } 4060 4061 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 4062 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 4063 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 4064 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 4065 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 4066 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 4067 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 4068 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 4069 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 4070 F2FS_FEATURE_FUNCS(verity, VERITY); 4071 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 4072 F2FS_FEATURE_FUNCS(casefold, CASEFOLD); 4073 F2FS_FEATURE_FUNCS(compression, COMPRESSION); 4074 4075 #ifdef CONFIG_BLK_DEV_ZONED 4076 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi, 4077 block_t blkaddr) 4078 { 4079 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 4080 4081 return test_bit(zno, FDEV(devi).blkz_seq); 4082 } 4083 #endif 4084 4085 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 4086 { 4087 return f2fs_sb_has_blkzoned(sbi); 4088 } 4089 4090 static inline bool f2fs_bdev_support_discard(struct block_device *bdev) 4091 { 4092 return blk_queue_discard(bdev_get_queue(bdev)) || 4093 bdev_is_zoned(bdev); 4094 } 4095 4096 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 4097 { 4098 int i; 4099 4100 if (!f2fs_is_multi_device(sbi)) 4101 return f2fs_bdev_support_discard(sbi->sb->s_bdev); 4102 4103 for (i = 0; i < sbi->s_ndevs; i++) 4104 if (f2fs_bdev_support_discard(FDEV(i).bdev)) 4105 return true; 4106 return false; 4107 } 4108 4109 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 4110 { 4111 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 4112 f2fs_hw_should_discard(sbi); 4113 } 4114 4115 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi) 4116 { 4117 int i; 4118 4119 if (!f2fs_is_multi_device(sbi)) 4120 return bdev_read_only(sbi->sb->s_bdev); 4121 4122 for (i = 0; i < sbi->s_ndevs; i++) 4123 if (bdev_read_only(FDEV(i).bdev)) 4124 return true; 4125 return false; 4126 } 4127 4128 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi) 4129 { 4130 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS; 4131 } 4132 4133 static inline bool f2fs_may_compress(struct inode *inode) 4134 { 4135 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) || 4136 f2fs_is_atomic_file(inode) || 4137 f2fs_is_volatile_file(inode)) 4138 return false; 4139 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode); 4140 } 4141 4142 static inline void f2fs_i_compr_blocks_update(struct inode *inode, 4143 u64 blocks, bool add) 4144 { 4145 int diff = F2FS_I(inode)->i_cluster_size - blocks; 4146 struct f2fs_inode_info *fi = F2FS_I(inode); 4147 4148 /* don't update i_compr_blocks if saved blocks were released */ 4149 if (!add && !atomic_read(&fi->i_compr_blocks)) 4150 return; 4151 4152 if (add) { 4153 atomic_add(diff, &fi->i_compr_blocks); 4154 stat_add_compr_blocks(inode, diff); 4155 } else { 4156 atomic_sub(diff, &fi->i_compr_blocks); 4157 stat_sub_compr_blocks(inode, diff); 4158 } 4159 f2fs_mark_inode_dirty_sync(inode, true); 4160 } 4161 4162 static inline int block_unaligned_IO(struct inode *inode, 4163 struct kiocb *iocb, struct iov_iter *iter) 4164 { 4165 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 4166 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 4167 loff_t offset = iocb->ki_pos; 4168 unsigned long align = offset | iov_iter_alignment(iter); 4169 4170 return align & blocksize_mask; 4171 } 4172 4173 static inline int allow_outplace_dio(struct inode *inode, 4174 struct kiocb *iocb, struct iov_iter *iter) 4175 { 4176 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4177 int rw = iov_iter_rw(iter); 4178 4179 return (f2fs_lfs_mode(sbi) && (rw == WRITE) && 4180 !block_unaligned_IO(inode, iocb, iter)); 4181 } 4182 4183 static inline bool f2fs_force_buffered_io(struct inode *inode, 4184 struct kiocb *iocb, struct iov_iter *iter) 4185 { 4186 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4187 int rw = iov_iter_rw(iter); 4188 4189 if (f2fs_post_read_required(inode)) 4190 return true; 4191 if (f2fs_is_multi_device(sbi)) 4192 return true; 4193 /* 4194 * for blkzoned device, fallback direct IO to buffered IO, so 4195 * all IOs can be serialized by log-structured write. 4196 */ 4197 if (f2fs_sb_has_blkzoned(sbi)) 4198 return true; 4199 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) { 4200 if (block_unaligned_IO(inode, iocb, iter)) 4201 return true; 4202 if (F2FS_IO_ALIGNED(sbi)) 4203 return true; 4204 } 4205 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) 4206 return true; 4207 4208 return false; 4209 } 4210 4211 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx) 4212 { 4213 return fsverity_active(inode) && 4214 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE); 4215 } 4216 4217 #ifdef CONFIG_F2FS_FAULT_INJECTION 4218 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 4219 unsigned int type); 4220 #else 4221 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 4222 #endif 4223 4224 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 4225 { 4226 #ifdef CONFIG_QUOTA 4227 if (f2fs_sb_has_quota_ino(sbi)) 4228 return true; 4229 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 4230 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 4231 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 4232 return true; 4233 #endif 4234 return false; 4235 } 4236 4237 #define EFSBADCRC EBADMSG /* Bad CRC detected */ 4238 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ 4239 4240 #endif /* _LINUX_F2FS_H */ 4241