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 (unlikely(condition)) { \ 37 WARN_ON(1); \ 38 set_sbi_flag(sbi, SBI_NEED_FSCK); \ 39 } \ 40 } while (0) 41 #endif 42 43 enum { 44 FAULT_KMALLOC, 45 FAULT_KVMALLOC, 46 FAULT_PAGE_ALLOC, 47 FAULT_PAGE_GET, 48 FAULT_ALLOC_BIO, 49 FAULT_ALLOC_NID, 50 FAULT_ORPHAN, 51 FAULT_BLOCK, 52 FAULT_DIR_DEPTH, 53 FAULT_EVICT_INODE, 54 FAULT_TRUNCATE, 55 FAULT_READ_IO, 56 FAULT_CHECKPOINT, 57 FAULT_DISCARD, 58 FAULT_WRITE_IO, 59 FAULT_MAX, 60 }; 61 62 #ifdef CONFIG_F2FS_FAULT_INJECTION 63 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1) 64 65 struct f2fs_fault_info { 66 atomic_t inject_ops; 67 unsigned int inject_rate; 68 unsigned int inject_type; 69 }; 70 71 extern const char *f2fs_fault_name[FAULT_MAX]; 72 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) 73 #endif 74 75 /* 76 * For mount options 77 */ 78 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 79 #define F2FS_MOUNT_DISCARD 0x00000004 80 #define F2FS_MOUNT_NOHEAP 0x00000008 81 #define F2FS_MOUNT_XATTR_USER 0x00000010 82 #define F2FS_MOUNT_POSIX_ACL 0x00000020 83 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 84 #define F2FS_MOUNT_INLINE_XATTR 0x00000080 85 #define F2FS_MOUNT_INLINE_DATA 0x00000100 86 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 87 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 88 #define F2FS_MOUNT_NOBARRIER 0x00000800 89 #define F2FS_MOUNT_FASTBOOT 0x00001000 90 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 91 #define F2FS_MOUNT_DATA_FLUSH 0x00008000 92 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 93 #define F2FS_MOUNT_USRQUOTA 0x00080000 94 #define F2FS_MOUNT_GRPQUOTA 0x00100000 95 #define F2FS_MOUNT_PRJQUOTA 0x00200000 96 #define F2FS_MOUNT_QUOTA 0x00400000 97 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000 98 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000 99 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000 100 #define F2FS_MOUNT_NORECOVERY 0x04000000 101 #define F2FS_MOUNT_ATGC 0x08000000 102 103 #define F2FS_OPTION(sbi) ((sbi)->mount_opt) 104 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) 105 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option) 106 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option) 107 108 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 109 typecheck(unsigned long long, b) && \ 110 ((long long)((a) - (b)) > 0)) 111 112 typedef u32 block_t; /* 113 * should not change u32, since it is the on-disk block 114 * address format, __le32. 115 */ 116 typedef u32 nid_t; 117 118 #define COMPRESS_EXT_NUM 16 119 120 struct f2fs_mount_info { 121 unsigned int opt; 122 int write_io_size_bits; /* Write IO size bits */ 123 block_t root_reserved_blocks; /* root reserved blocks */ 124 kuid_t s_resuid; /* reserved blocks for uid */ 125 kgid_t s_resgid; /* reserved blocks for gid */ 126 int active_logs; /* # of active logs */ 127 int inline_xattr_size; /* inline xattr size */ 128 #ifdef CONFIG_F2FS_FAULT_INJECTION 129 struct f2fs_fault_info fault_info; /* For fault injection */ 130 #endif 131 #ifdef CONFIG_QUOTA 132 /* Names of quota files with journalled quota */ 133 char *s_qf_names[MAXQUOTAS]; 134 int s_jquota_fmt; /* Format of quota to use */ 135 #endif 136 /* For which write hints are passed down to block layer */ 137 int whint_mode; 138 int alloc_mode; /* segment allocation policy */ 139 int fsync_mode; /* fsync policy */ 140 int fs_mode; /* fs mode: LFS or ADAPTIVE */ 141 int bggc_mode; /* bggc mode: off, on or sync */ 142 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */ 143 block_t unusable_cap_perc; /* percentage for cap */ 144 block_t unusable_cap; /* Amount of space allowed to be 145 * unusable when disabling checkpoint 146 */ 147 148 /* For compression */ 149 unsigned char compress_algorithm; /* algorithm type */ 150 unsigned char compress_log_size; /* cluster log size */ 151 bool compress_chksum; /* compressed data chksum */ 152 unsigned char compress_ext_cnt; /* extension count */ 153 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */ 154 }; 155 156 #define F2FS_FEATURE_ENCRYPT 0x0001 157 #define F2FS_FEATURE_BLKZONED 0x0002 158 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004 159 #define F2FS_FEATURE_EXTRA_ATTR 0x0008 160 #define F2FS_FEATURE_PRJQUOTA 0x0010 161 #define F2FS_FEATURE_INODE_CHKSUM 0x0020 162 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 163 #define F2FS_FEATURE_QUOTA_INO 0x0080 164 #define F2FS_FEATURE_INODE_CRTIME 0x0100 165 #define F2FS_FEATURE_LOST_FOUND 0x0200 166 #define F2FS_FEATURE_VERITY 0x0400 167 #define F2FS_FEATURE_SB_CHKSUM 0x0800 168 #define F2FS_FEATURE_CASEFOLD 0x1000 169 #define F2FS_FEATURE_COMPRESSION 0x2000 170 171 #define __F2FS_HAS_FEATURE(raw_super, mask) \ 172 ((raw_super->feature & cpu_to_le32(mask)) != 0) 173 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask) 174 #define F2FS_SET_FEATURE(sbi, mask) \ 175 (sbi->raw_super->feature |= cpu_to_le32(mask)) 176 #define F2FS_CLEAR_FEATURE(sbi, mask) \ 177 (sbi->raw_super->feature &= ~cpu_to_le32(mask)) 178 179 /* 180 * Default values for user and/or group using reserved blocks 181 */ 182 #define F2FS_DEF_RESUID 0 183 #define F2FS_DEF_RESGID 0 184 185 /* 186 * For checkpoint manager 187 */ 188 enum { 189 NAT_BITMAP, 190 SIT_BITMAP 191 }; 192 193 #define CP_UMOUNT 0x00000001 194 #define CP_FASTBOOT 0x00000002 195 #define CP_SYNC 0x00000004 196 #define CP_RECOVERY 0x00000008 197 #define CP_DISCARD 0x00000010 198 #define CP_TRIMMED 0x00000020 199 #define CP_PAUSE 0x00000040 200 #define CP_RESIZE 0x00000080 201 202 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) 203 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */ 204 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */ 205 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */ 206 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */ 207 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */ 208 #define DEF_CP_INTERVAL 60 /* 60 secs */ 209 #define DEF_IDLE_INTERVAL 5 /* 5 secs */ 210 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */ 211 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */ 212 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ 213 214 struct cp_control { 215 int reason; 216 __u64 trim_start; 217 __u64 trim_end; 218 __u64 trim_minlen; 219 }; 220 221 /* 222 * indicate meta/data type 223 */ 224 enum { 225 META_CP, 226 META_NAT, 227 META_SIT, 228 META_SSA, 229 META_MAX, 230 META_POR, 231 DATA_GENERIC, /* check range only */ 232 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */ 233 DATA_GENERIC_ENHANCE_READ, /* 234 * strong check on range and segment 235 * bitmap but no warning due to race 236 * condition of read on truncated area 237 * by extent_cache 238 */ 239 META_GENERIC, 240 }; 241 242 /* for the list of ino */ 243 enum { 244 ORPHAN_INO, /* for orphan ino list */ 245 APPEND_INO, /* for append ino list */ 246 UPDATE_INO, /* for update ino list */ 247 TRANS_DIR_INO, /* for trasactions dir ino list */ 248 FLUSH_INO, /* for multiple device flushing */ 249 MAX_INO_ENTRY, /* max. list */ 250 }; 251 252 struct ino_entry { 253 struct list_head list; /* list head */ 254 nid_t ino; /* inode number */ 255 unsigned int dirty_device; /* dirty device bitmap */ 256 }; 257 258 /* for the list of inodes to be GCed */ 259 struct inode_entry { 260 struct list_head list; /* list head */ 261 struct inode *inode; /* vfs inode pointer */ 262 }; 263 264 struct fsync_node_entry { 265 struct list_head list; /* list head */ 266 struct page *page; /* warm node page pointer */ 267 unsigned int seq_id; /* sequence id */ 268 }; 269 270 /* for the bitmap indicate blocks to be discarded */ 271 struct discard_entry { 272 struct list_head list; /* list head */ 273 block_t start_blkaddr; /* start blockaddr of current segment */ 274 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ 275 }; 276 277 /* default discard granularity of inner discard thread, unit: block count */ 278 #define DEFAULT_DISCARD_GRANULARITY 16 279 280 /* max discard pend list number */ 281 #define MAX_PLIST_NUM 512 282 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ 283 (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) 284 285 enum { 286 D_PREP, /* initial */ 287 D_PARTIAL, /* partially submitted */ 288 D_SUBMIT, /* all submitted */ 289 D_DONE, /* finished */ 290 }; 291 292 struct discard_info { 293 block_t lstart; /* logical start address */ 294 block_t len; /* length */ 295 block_t start; /* actual start address in dev */ 296 }; 297 298 struct discard_cmd { 299 struct rb_node rb_node; /* rb node located in rb-tree */ 300 union { 301 struct { 302 block_t lstart; /* logical start address */ 303 block_t len; /* length */ 304 block_t start; /* actual start address in dev */ 305 }; 306 struct discard_info di; /* discard info */ 307 308 }; 309 struct list_head list; /* command list */ 310 struct completion wait; /* compleation */ 311 struct block_device *bdev; /* bdev */ 312 unsigned short ref; /* reference count */ 313 unsigned char state; /* state */ 314 unsigned char queued; /* queued discard */ 315 int error; /* bio error */ 316 spinlock_t lock; /* for state/bio_ref updating */ 317 unsigned short bio_ref; /* bio reference count */ 318 }; 319 320 enum { 321 DPOLICY_BG, 322 DPOLICY_FORCE, 323 DPOLICY_FSTRIM, 324 DPOLICY_UMOUNT, 325 MAX_DPOLICY, 326 }; 327 328 struct discard_policy { 329 int type; /* type of discard */ 330 unsigned int min_interval; /* used for candidates exist */ 331 unsigned int mid_interval; /* used for device busy */ 332 unsigned int max_interval; /* used for candidates not exist */ 333 unsigned int max_requests; /* # of discards issued per round */ 334 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ 335 bool io_aware; /* issue discard in idle time */ 336 bool sync; /* submit discard with REQ_SYNC flag */ 337 bool ordered; /* issue discard by lba order */ 338 bool timeout; /* discard timeout for put_super */ 339 unsigned int granularity; /* discard granularity */ 340 }; 341 342 struct discard_cmd_control { 343 struct task_struct *f2fs_issue_discard; /* discard thread */ 344 struct list_head entry_list; /* 4KB discard entry list */ 345 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ 346 struct list_head wait_list; /* store on-flushing entries */ 347 struct list_head fstrim_list; /* in-flight discard from fstrim */ 348 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ 349 unsigned int discard_wake; /* to wake up discard thread */ 350 struct mutex cmd_lock; 351 unsigned int nr_discards; /* # of discards in the list */ 352 unsigned int max_discards; /* max. discards to be issued */ 353 unsigned int discard_granularity; /* discard granularity */ 354 unsigned int undiscard_blks; /* # of undiscard blocks */ 355 unsigned int next_pos; /* next discard position */ 356 atomic_t issued_discard; /* # of issued discard */ 357 atomic_t queued_discard; /* # of queued discard */ 358 atomic_t discard_cmd_cnt; /* # of cached cmd count */ 359 struct rb_root_cached root; /* root of discard rb-tree */ 360 bool rbtree_check; /* config for consistence check */ 361 }; 362 363 /* for the list of fsync inodes, used only during recovery */ 364 struct fsync_inode_entry { 365 struct list_head list; /* list head */ 366 struct inode *inode; /* vfs inode pointer */ 367 block_t blkaddr; /* block address locating the last fsync */ 368 block_t last_dentry; /* block address locating the last dentry */ 369 }; 370 371 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) 372 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) 373 374 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) 375 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) 376 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) 377 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) 378 379 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) 380 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) 381 382 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) 383 { 384 int before = nats_in_cursum(journal); 385 386 journal->n_nats = cpu_to_le16(before + i); 387 return before; 388 } 389 390 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) 391 { 392 int before = sits_in_cursum(journal); 393 394 journal->n_sits = cpu_to_le16(before + i); 395 return before; 396 } 397 398 static inline bool __has_cursum_space(struct f2fs_journal *journal, 399 int size, int type) 400 { 401 if (type == NAT_JOURNAL) 402 return size <= MAX_NAT_JENTRIES(journal); 403 return size <= MAX_SIT_JENTRIES(journal); 404 } 405 406 /* for inline stuff */ 407 #define DEF_INLINE_RESERVED_SIZE 1 408 static inline int get_extra_isize(struct inode *inode); 409 static inline int get_inline_xattr_addrs(struct inode *inode); 410 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 411 (CUR_ADDRS_PER_INODE(inode) - \ 412 get_inline_xattr_addrs(inode) - \ 413 DEF_INLINE_RESERVED_SIZE)) 414 415 /* for inline dir */ 416 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 417 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 418 BITS_PER_BYTE + 1)) 419 #define INLINE_DENTRY_BITMAP_SIZE(inode) \ 420 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE) 421 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 422 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 423 NR_INLINE_DENTRY(inode) + \ 424 INLINE_DENTRY_BITMAP_SIZE(inode))) 425 426 /* 427 * For INODE and NODE manager 428 */ 429 /* for directory operations */ 430 431 struct f2fs_filename { 432 /* 433 * The filename the user specified. This is NULL for some 434 * filesystem-internal operations, e.g. converting an inline directory 435 * to a non-inline one, or roll-forward recovering an encrypted dentry. 436 */ 437 const struct qstr *usr_fname; 438 439 /* 440 * The on-disk filename. For encrypted directories, this is encrypted. 441 * This may be NULL for lookups in an encrypted dir without the key. 442 */ 443 struct fscrypt_str disk_name; 444 445 /* The dirhash of this filename */ 446 f2fs_hash_t hash; 447 448 #ifdef CONFIG_FS_ENCRYPTION 449 /* 450 * For lookups in encrypted directories: either the buffer backing 451 * disk_name, or a buffer that holds the decoded no-key name. 452 */ 453 struct fscrypt_str crypto_buf; 454 #endif 455 #ifdef CONFIG_UNICODE 456 /* 457 * For casefolded directories: the casefolded name, but it's left NULL 458 * if the original name is not valid Unicode, if the directory is both 459 * casefolded and encrypted and its encryption key is unavailable, or if 460 * the filesystem is doing an internal operation where usr_fname is also 461 * NULL. In all these cases we fall back to treating the name as an 462 * opaque byte sequence. 463 */ 464 struct fscrypt_str cf_name; 465 #endif 466 }; 467 468 struct f2fs_dentry_ptr { 469 struct inode *inode; 470 void *bitmap; 471 struct f2fs_dir_entry *dentry; 472 __u8 (*filename)[F2FS_SLOT_LEN]; 473 int max; 474 int nr_bitmap; 475 }; 476 477 static inline void make_dentry_ptr_block(struct inode *inode, 478 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 479 { 480 d->inode = inode; 481 d->max = NR_DENTRY_IN_BLOCK; 482 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 483 d->bitmap = t->dentry_bitmap; 484 d->dentry = t->dentry; 485 d->filename = t->filename; 486 } 487 488 static inline void make_dentry_ptr_inline(struct inode *inode, 489 struct f2fs_dentry_ptr *d, void *t) 490 { 491 int entry_cnt = NR_INLINE_DENTRY(inode); 492 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 493 int reserved_size = INLINE_RESERVED_SIZE(inode); 494 495 d->inode = inode; 496 d->max = entry_cnt; 497 d->nr_bitmap = bitmap_size; 498 d->bitmap = t; 499 d->dentry = t + bitmap_size + reserved_size; 500 d->filename = t + bitmap_size + reserved_size + 501 SIZE_OF_DIR_ENTRY * entry_cnt; 502 } 503 504 /* 505 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 506 * as its node offset to distinguish from index node blocks. 507 * But some bits are used to mark the node block. 508 */ 509 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 510 >> OFFSET_BIT_SHIFT) 511 enum { 512 ALLOC_NODE, /* allocate a new node page if needed */ 513 LOOKUP_NODE, /* look up a node without readahead */ 514 LOOKUP_NODE_RA, /* 515 * look up a node with readahead called 516 * by get_data_block. 517 */ 518 }; 519 520 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 521 522 /* congestion wait timeout value, default: 20ms */ 523 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20)) 524 525 /* maximum retry quota flush count */ 526 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 527 528 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 529 530 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 531 532 /* for in-memory extent cache entry */ 533 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 534 535 /* number of extent info in extent cache we try to shrink */ 536 #define EXTENT_CACHE_SHRINK_NUMBER 128 537 538 struct rb_entry { 539 struct rb_node rb_node; /* rb node located in rb-tree */ 540 union { 541 struct { 542 unsigned int ofs; /* start offset of the entry */ 543 unsigned int len; /* length of the entry */ 544 }; 545 unsigned long long key; /* 64-bits key */ 546 } __packed; 547 }; 548 549 struct extent_info { 550 unsigned int fofs; /* start offset in a file */ 551 unsigned int len; /* length of the extent */ 552 u32 blk; /* start block address of the extent */ 553 }; 554 555 struct extent_node { 556 struct rb_node rb_node; /* rb node located in rb-tree */ 557 struct extent_info ei; /* extent info */ 558 struct list_head list; /* node in global extent list of sbi */ 559 struct extent_tree *et; /* extent tree pointer */ 560 }; 561 562 struct extent_tree { 563 nid_t ino; /* inode number */ 564 struct rb_root_cached root; /* root of extent info rb-tree */ 565 struct extent_node *cached_en; /* recently accessed extent node */ 566 struct extent_info largest; /* largested extent info */ 567 struct list_head list; /* to be used by sbi->zombie_list */ 568 rwlock_t lock; /* protect extent info rb-tree */ 569 atomic_t node_cnt; /* # of extent node in rb-tree*/ 570 bool largest_updated; /* largest extent updated */ 571 }; 572 573 /* 574 * This structure is taken from ext4_map_blocks. 575 * 576 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 577 */ 578 #define F2FS_MAP_NEW (1 << BH_New) 579 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 580 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 581 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 582 F2FS_MAP_UNWRITTEN) 583 584 struct f2fs_map_blocks { 585 block_t m_pblk; 586 block_t m_lblk; 587 unsigned int m_len; 588 unsigned int m_flags; 589 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 590 pgoff_t *m_next_extent; /* point to next possible extent */ 591 int m_seg_type; 592 bool m_may_create; /* indicate it is from write path */ 593 }; 594 595 /* for flag in get_data_block */ 596 enum { 597 F2FS_GET_BLOCK_DEFAULT, 598 F2FS_GET_BLOCK_FIEMAP, 599 F2FS_GET_BLOCK_BMAP, 600 F2FS_GET_BLOCK_DIO, 601 F2FS_GET_BLOCK_PRE_DIO, 602 F2FS_GET_BLOCK_PRE_AIO, 603 F2FS_GET_BLOCK_PRECACHE, 604 }; 605 606 /* 607 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 608 */ 609 #define FADVISE_COLD_BIT 0x01 610 #define FADVISE_LOST_PINO_BIT 0x02 611 #define FADVISE_ENCRYPT_BIT 0x04 612 #define FADVISE_ENC_NAME_BIT 0x08 613 #define FADVISE_KEEP_SIZE_BIT 0x10 614 #define FADVISE_HOT_BIT 0x20 615 #define FADVISE_VERITY_BIT 0x40 616 617 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 618 619 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 620 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 621 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 622 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 623 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 624 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 625 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 626 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 627 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) 628 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 629 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 630 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 631 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 632 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 633 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 634 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 635 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT) 636 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT) 637 638 #define DEF_DIR_LEVEL 0 639 640 enum { 641 GC_FAILURE_PIN, 642 GC_FAILURE_ATOMIC, 643 MAX_GC_FAILURE 644 }; 645 646 /* used for f2fs_inode_info->flags */ 647 enum { 648 FI_NEW_INODE, /* indicate newly allocated inode */ 649 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 650 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 651 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 652 FI_INC_LINK, /* need to increment i_nlink */ 653 FI_ACL_MODE, /* indicate acl mode */ 654 FI_NO_ALLOC, /* should not allocate any blocks */ 655 FI_FREE_NID, /* free allocated nide */ 656 FI_NO_EXTENT, /* not to use the extent cache */ 657 FI_INLINE_XATTR, /* used for inline xattr */ 658 FI_INLINE_DATA, /* used for inline data*/ 659 FI_INLINE_DENTRY, /* used for inline dentry */ 660 FI_APPEND_WRITE, /* inode has appended data */ 661 FI_UPDATE_WRITE, /* inode has in-place-update data */ 662 FI_NEED_IPU, /* used for ipu per file */ 663 FI_ATOMIC_FILE, /* indicate atomic file */ 664 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 665 FI_VOLATILE_FILE, /* indicate volatile file */ 666 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 667 FI_DROP_CACHE, /* drop dirty page cache */ 668 FI_DATA_EXIST, /* indicate data exists */ 669 FI_INLINE_DOTS, /* indicate inline dot dentries */ 670 FI_DO_DEFRAG, /* indicate defragment is running */ 671 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 672 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 673 FI_HOT_DATA, /* indicate file is hot */ 674 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 675 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 676 FI_PIN_FILE, /* indicate file should not be gced */ 677 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 678 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */ 679 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */ 680 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */ 681 FI_MMAP_FILE, /* indicate file was mmapped */ 682 FI_MAX, /* max flag, never be used */ 683 }; 684 685 struct f2fs_inode_info { 686 struct inode vfs_inode; /* serve a vfs inode */ 687 unsigned long i_flags; /* keep an inode flags for ioctl */ 688 unsigned char i_advise; /* use to give file attribute hints */ 689 unsigned char i_dir_level; /* use for dentry level for large dir */ 690 unsigned int i_current_depth; /* only for directory depth */ 691 /* for gc failure statistic */ 692 unsigned int i_gc_failures[MAX_GC_FAILURE]; 693 unsigned int i_pino; /* parent inode number */ 694 umode_t i_acl_mode; /* keep file acl mode temporarily */ 695 696 /* Use below internally in f2fs*/ 697 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */ 698 struct rw_semaphore i_sem; /* protect fi info */ 699 atomic_t dirty_pages; /* # of dirty pages */ 700 f2fs_hash_t chash; /* hash value of given file name */ 701 unsigned int clevel; /* maximum level of given file name */ 702 struct task_struct *task; /* lookup and create consistency */ 703 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 704 nid_t i_xattr_nid; /* node id that contains xattrs */ 705 loff_t last_disk_size; /* lastly written file size */ 706 spinlock_t i_size_lock; /* protect last_disk_size */ 707 708 #ifdef CONFIG_QUOTA 709 struct dquot *i_dquot[MAXQUOTAS]; 710 711 /* quota space reservation, managed internally by quota code */ 712 qsize_t i_reserved_quota; 713 #endif 714 struct list_head dirty_list; /* dirty list for dirs and files */ 715 struct list_head gdirty_list; /* linked in global dirty list */ 716 struct list_head inmem_ilist; /* list for inmem inodes */ 717 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 718 struct task_struct *inmem_task; /* store inmemory task */ 719 struct mutex inmem_lock; /* lock for inmemory pages */ 720 pgoff_t ra_offset; /* ongoing readahead offset */ 721 struct extent_tree *extent_tree; /* cached extent_tree entry */ 722 723 /* avoid racing between foreground op and gc */ 724 struct rw_semaphore i_gc_rwsem[2]; 725 struct rw_semaphore i_mmap_sem; 726 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 727 728 int i_extra_isize; /* size of extra space located in i_addr */ 729 kprojid_t i_projid; /* id for project quota */ 730 int i_inline_xattr_size; /* inline xattr size */ 731 struct timespec64 i_crtime; /* inode creation time */ 732 struct timespec64 i_disk_time[4];/* inode disk times */ 733 734 /* for file compress */ 735 atomic_t i_compr_blocks; /* # of compressed blocks */ 736 unsigned char i_compress_algorithm; /* algorithm type */ 737 unsigned char i_log_cluster_size; /* log of cluster size */ 738 unsigned short i_compress_flag; /* compress flag */ 739 unsigned int i_cluster_size; /* cluster size */ 740 }; 741 742 static inline void get_extent_info(struct extent_info *ext, 743 struct f2fs_extent *i_ext) 744 { 745 ext->fofs = le32_to_cpu(i_ext->fofs); 746 ext->blk = le32_to_cpu(i_ext->blk); 747 ext->len = le32_to_cpu(i_ext->len); 748 } 749 750 static inline void set_raw_extent(struct extent_info *ext, 751 struct f2fs_extent *i_ext) 752 { 753 i_ext->fofs = cpu_to_le32(ext->fofs); 754 i_ext->blk = cpu_to_le32(ext->blk); 755 i_ext->len = cpu_to_le32(ext->len); 756 } 757 758 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 759 u32 blk, unsigned int len) 760 { 761 ei->fofs = fofs; 762 ei->blk = blk; 763 ei->len = len; 764 } 765 766 static inline bool __is_discard_mergeable(struct discard_info *back, 767 struct discard_info *front, unsigned int max_len) 768 { 769 return (back->lstart + back->len == front->lstart) && 770 (back->len + front->len <= max_len); 771 } 772 773 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 774 struct discard_info *back, unsigned int max_len) 775 { 776 return __is_discard_mergeable(back, cur, max_len); 777 } 778 779 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 780 struct discard_info *front, unsigned int max_len) 781 { 782 return __is_discard_mergeable(cur, front, max_len); 783 } 784 785 static inline bool __is_extent_mergeable(struct extent_info *back, 786 struct extent_info *front) 787 { 788 return (back->fofs + back->len == front->fofs && 789 back->blk + back->len == front->blk); 790 } 791 792 static inline bool __is_back_mergeable(struct extent_info *cur, 793 struct extent_info *back) 794 { 795 return __is_extent_mergeable(back, cur); 796 } 797 798 static inline bool __is_front_mergeable(struct extent_info *cur, 799 struct extent_info *front) 800 { 801 return __is_extent_mergeable(cur, front); 802 } 803 804 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 805 static inline void __try_update_largest_extent(struct extent_tree *et, 806 struct extent_node *en) 807 { 808 if (en->ei.len > et->largest.len) { 809 et->largest = en->ei; 810 et->largest_updated = true; 811 } 812 } 813 814 /* 815 * For free nid management 816 */ 817 enum nid_state { 818 FREE_NID, /* newly added to free nid list */ 819 PREALLOC_NID, /* it is preallocated */ 820 MAX_NID_STATE, 821 }; 822 823 struct f2fs_nm_info { 824 block_t nat_blkaddr; /* base disk address of NAT */ 825 nid_t max_nid; /* maximum possible node ids */ 826 nid_t available_nids; /* # of available node ids */ 827 nid_t next_scan_nid; /* the next nid to be scanned */ 828 unsigned int ram_thresh; /* control the memory footprint */ 829 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 830 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 831 832 /* NAT cache management */ 833 struct radix_tree_root nat_root;/* root of the nat entry cache */ 834 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 835 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ 836 struct list_head nat_entries; /* cached nat entry list (clean) */ 837 spinlock_t nat_list_lock; /* protect clean nat entry list */ 838 unsigned int nat_cnt; /* the # of cached nat entries */ 839 unsigned int dirty_nat_cnt; /* total num of nat entries in set */ 840 unsigned int nat_blocks; /* # of nat blocks */ 841 842 /* free node ids management */ 843 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 844 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 845 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 846 spinlock_t nid_list_lock; /* protect nid lists ops */ 847 struct mutex build_lock; /* lock for build free nids */ 848 unsigned char **free_nid_bitmap; 849 unsigned char *nat_block_bitmap; 850 unsigned short *free_nid_count; /* free nid count of NAT block */ 851 852 /* for checkpoint */ 853 char *nat_bitmap; /* NAT bitmap pointer */ 854 855 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 856 unsigned char *nat_bits; /* NAT bits blocks */ 857 unsigned char *full_nat_bits; /* full NAT pages */ 858 unsigned char *empty_nat_bits; /* empty NAT pages */ 859 #ifdef CONFIG_F2FS_CHECK_FS 860 char *nat_bitmap_mir; /* NAT bitmap mirror */ 861 #endif 862 int bitmap_size; /* bitmap size */ 863 }; 864 865 /* 866 * this structure is used as one of function parameters. 867 * all the information are dedicated to a given direct node block determined 868 * by the data offset in a file. 869 */ 870 struct dnode_of_data { 871 struct inode *inode; /* vfs inode pointer */ 872 struct page *inode_page; /* its inode page, NULL is possible */ 873 struct page *node_page; /* cached direct node page */ 874 nid_t nid; /* node id of the direct node block */ 875 unsigned int ofs_in_node; /* data offset in the node page */ 876 bool inode_page_locked; /* inode page is locked or not */ 877 bool node_changed; /* is node block changed */ 878 char cur_level; /* level of hole node page */ 879 char max_level; /* level of current page located */ 880 block_t data_blkaddr; /* block address of the node block */ 881 }; 882 883 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 884 struct page *ipage, struct page *npage, nid_t nid) 885 { 886 memset(dn, 0, sizeof(*dn)); 887 dn->inode = inode; 888 dn->inode_page = ipage; 889 dn->node_page = npage; 890 dn->nid = nid; 891 } 892 893 /* 894 * For SIT manager 895 * 896 * By default, there are 6 active log areas across the whole main area. 897 * When considering hot and cold data separation to reduce cleaning overhead, 898 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 899 * respectively. 900 * In the current design, you should not change the numbers intentionally. 901 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 902 * logs individually according to the underlying devices. (default: 6) 903 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 904 * data and 8 for node logs. 905 */ 906 #define NR_CURSEG_DATA_TYPE (3) 907 #define NR_CURSEG_NODE_TYPE (3) 908 #define NR_CURSEG_INMEM_TYPE (2) 909 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 910 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE) 911 912 enum { 913 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 914 CURSEG_WARM_DATA, /* data blocks */ 915 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 916 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 917 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 918 CURSEG_COLD_NODE, /* indirect node blocks */ 919 NR_PERSISTENT_LOG, /* number of persistent log */ 920 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG, 921 /* pinned file that needs consecutive block address */ 922 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */ 923 NO_CHECK_TYPE, /* number of persistent & inmem log */ 924 }; 925 926 struct flush_cmd { 927 struct completion wait; 928 struct llist_node llnode; 929 nid_t ino; 930 int ret; 931 }; 932 933 struct flush_cmd_control { 934 struct task_struct *f2fs_issue_flush; /* flush thread */ 935 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 936 atomic_t issued_flush; /* # of issued flushes */ 937 atomic_t queued_flush; /* # of queued flushes */ 938 struct llist_head issue_list; /* list for command issue */ 939 struct llist_node *dispatch_list; /* list for command dispatch */ 940 }; 941 942 struct f2fs_sm_info { 943 struct sit_info *sit_info; /* whole segment information */ 944 struct free_segmap_info *free_info; /* free segment information */ 945 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 946 struct curseg_info *curseg_array; /* active segment information */ 947 948 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 949 950 block_t seg0_blkaddr; /* block address of 0'th segment */ 951 block_t main_blkaddr; /* start block address of main area */ 952 block_t ssa_blkaddr; /* start block address of SSA area */ 953 954 unsigned int segment_count; /* total # of segments */ 955 unsigned int main_segments; /* # of segments in main area */ 956 unsigned int reserved_segments; /* # of reserved segments */ 957 unsigned int ovp_segments; /* # of overprovision segments */ 958 959 /* a threshold to reclaim prefree segments */ 960 unsigned int rec_prefree_segments; 961 962 /* for batched trimming */ 963 unsigned int trim_sections; /* # of sections to trim */ 964 965 struct list_head sit_entry_set; /* sit entry set list */ 966 967 unsigned int ipu_policy; /* in-place-update policy */ 968 unsigned int min_ipu_util; /* in-place-update threshold */ 969 unsigned int min_fsync_blocks; /* threshold for fsync */ 970 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 971 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 972 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 973 974 /* for flush command control */ 975 struct flush_cmd_control *fcc_info; 976 977 /* for discard command control */ 978 struct discard_cmd_control *dcc_info; 979 }; 980 981 /* 982 * For superblock 983 */ 984 /* 985 * COUNT_TYPE for monitoring 986 * 987 * f2fs monitors the number of several block types such as on-writeback, 988 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 989 */ 990 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 991 enum count_type { 992 F2FS_DIRTY_DENTS, 993 F2FS_DIRTY_DATA, 994 F2FS_DIRTY_QDATA, 995 F2FS_DIRTY_NODES, 996 F2FS_DIRTY_META, 997 F2FS_INMEM_PAGES, 998 F2FS_DIRTY_IMETA, 999 F2FS_WB_CP_DATA, 1000 F2FS_WB_DATA, 1001 F2FS_RD_DATA, 1002 F2FS_RD_NODE, 1003 F2FS_RD_META, 1004 F2FS_DIO_WRITE, 1005 F2FS_DIO_READ, 1006 NR_COUNT_TYPE, 1007 }; 1008 1009 /* 1010 * The below are the page types of bios used in submit_bio(). 1011 * The available types are: 1012 * DATA User data pages. It operates as async mode. 1013 * NODE Node pages. It operates as async mode. 1014 * META FS metadata pages such as SIT, NAT, CP. 1015 * NR_PAGE_TYPE The number of page types. 1016 * META_FLUSH Make sure the previous pages are written 1017 * with waiting the bio's completion 1018 * ... Only can be used with META. 1019 */ 1020 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 1021 enum page_type { 1022 DATA, 1023 NODE, 1024 META, 1025 NR_PAGE_TYPE, 1026 META_FLUSH, 1027 INMEM, /* the below types are used by tracepoints only. */ 1028 INMEM_DROP, 1029 INMEM_INVALIDATE, 1030 INMEM_REVOKE, 1031 IPU, 1032 OPU, 1033 }; 1034 1035 enum temp_type { 1036 HOT = 0, /* must be zero for meta bio */ 1037 WARM, 1038 COLD, 1039 NR_TEMP_TYPE, 1040 }; 1041 1042 enum need_lock_type { 1043 LOCK_REQ = 0, 1044 LOCK_DONE, 1045 LOCK_RETRY, 1046 }; 1047 1048 enum cp_reason_type { 1049 CP_NO_NEEDED, 1050 CP_NON_REGULAR, 1051 CP_COMPRESSED, 1052 CP_HARDLINK, 1053 CP_SB_NEED_CP, 1054 CP_WRONG_PINO, 1055 CP_NO_SPC_ROLL, 1056 CP_NODE_NEED_CP, 1057 CP_FASTBOOT_MODE, 1058 CP_SPEC_LOG_NUM, 1059 CP_RECOVER_DIR, 1060 }; 1061 1062 enum iostat_type { 1063 /* WRITE IO */ 1064 APP_DIRECT_IO, /* app direct write IOs */ 1065 APP_BUFFERED_IO, /* app buffered write IOs */ 1066 APP_WRITE_IO, /* app write IOs */ 1067 APP_MAPPED_IO, /* app mapped IOs */ 1068 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1069 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1070 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1071 FS_GC_DATA_IO, /* data IOs from forground gc */ 1072 FS_GC_NODE_IO, /* node IOs from forground gc */ 1073 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1074 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1075 FS_CP_META_IO, /* meta IOs from checkpoint */ 1076 1077 /* READ IO */ 1078 APP_DIRECT_READ_IO, /* app direct read IOs */ 1079 APP_BUFFERED_READ_IO, /* app buffered read IOs */ 1080 APP_READ_IO, /* app read IOs */ 1081 APP_MAPPED_READ_IO, /* app mapped read IOs */ 1082 FS_DATA_READ_IO, /* data read IOs */ 1083 FS_GDATA_READ_IO, /* data read IOs from background gc */ 1084 FS_CDATA_READ_IO, /* compressed data read IOs */ 1085 FS_NODE_READ_IO, /* node read IOs */ 1086 FS_META_READ_IO, /* meta read IOs */ 1087 1088 /* other */ 1089 FS_DISCARD, /* discard */ 1090 NR_IO_TYPE, 1091 }; 1092 1093 struct f2fs_io_info { 1094 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1095 nid_t ino; /* inode number */ 1096 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1097 enum temp_type temp; /* contains HOT/WARM/COLD */ 1098 int op; /* contains REQ_OP_ */ 1099 int op_flags; /* req_flag_bits */ 1100 block_t new_blkaddr; /* new block address to be written */ 1101 block_t old_blkaddr; /* old block address before Cow */ 1102 struct page *page; /* page to be written */ 1103 struct page *encrypted_page; /* encrypted page */ 1104 struct page *compressed_page; /* compressed page */ 1105 struct list_head list; /* serialize IOs */ 1106 bool submitted; /* indicate IO submission */ 1107 int need_lock; /* indicate we need to lock cp_rwsem */ 1108 bool in_list; /* indicate fio is in io_list */ 1109 bool is_por; /* indicate IO is from recovery or not */ 1110 bool retry; /* need to reallocate block address */ 1111 int compr_blocks; /* # of compressed block addresses */ 1112 bool encrypted; /* indicate file is encrypted */ 1113 enum iostat_type io_type; /* io type */ 1114 struct writeback_control *io_wbc; /* writeback control */ 1115 struct bio **bio; /* bio for ipu */ 1116 sector_t *last_block; /* last block number in bio */ 1117 unsigned char version; /* version of the node */ 1118 }; 1119 1120 struct bio_entry { 1121 struct bio *bio; 1122 struct list_head list; 1123 }; 1124 1125 #define is_read_io(rw) ((rw) == READ) 1126 struct f2fs_bio_info { 1127 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1128 struct bio *bio; /* bios to merge */ 1129 sector_t last_block_in_bio; /* last block number */ 1130 struct f2fs_io_info fio; /* store buffered io info. */ 1131 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1132 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1133 struct list_head io_list; /* track fios */ 1134 struct list_head bio_list; /* bio entry list head */ 1135 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */ 1136 }; 1137 1138 #define FDEV(i) (sbi->devs[i]) 1139 #define RDEV(i) (raw_super->devs[i]) 1140 struct f2fs_dev_info { 1141 struct block_device *bdev; 1142 char path[MAX_PATH_LEN]; 1143 unsigned int total_segments; 1144 block_t start_blk; 1145 block_t end_blk; 1146 #ifdef CONFIG_BLK_DEV_ZONED 1147 unsigned int nr_blkz; /* Total number of zones */ 1148 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */ 1149 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */ 1150 #endif 1151 }; 1152 1153 enum inode_type { 1154 DIR_INODE, /* for dirty dir inode */ 1155 FILE_INODE, /* for dirty regular/symlink inode */ 1156 DIRTY_META, /* for all dirtied inode metadata */ 1157 ATOMIC_FILE, /* for all atomic files */ 1158 NR_INODE_TYPE, 1159 }; 1160 1161 /* for inner inode cache management */ 1162 struct inode_management { 1163 struct radix_tree_root ino_root; /* ino entry array */ 1164 spinlock_t ino_lock; /* for ino entry lock */ 1165 struct list_head ino_list; /* inode list head */ 1166 unsigned long ino_num; /* number of entries */ 1167 }; 1168 1169 /* for GC_AT */ 1170 struct atgc_management { 1171 bool atgc_enabled; /* ATGC is enabled or not */ 1172 struct rb_root_cached root; /* root of victim rb-tree */ 1173 struct list_head victim_list; /* linked with all victim entries */ 1174 unsigned int victim_count; /* victim count in rb-tree */ 1175 unsigned int candidate_ratio; /* candidate ratio */ 1176 unsigned int max_candidate_count; /* max candidate count */ 1177 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */ 1178 unsigned long long age_threshold; /* age threshold */ 1179 }; 1180 1181 /* For s_flag in struct f2fs_sb_info */ 1182 enum { 1183 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1184 SBI_IS_CLOSE, /* specify unmounting */ 1185 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1186 SBI_POR_DOING, /* recovery is doing or not */ 1187 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1188 SBI_NEED_CP, /* need to checkpoint */ 1189 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1190 SBI_IS_RECOVERED, /* recovered orphan/data */ 1191 SBI_CP_DISABLED, /* CP was disabled last mount */ 1192 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ 1193 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1194 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1195 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1196 SBI_IS_RESIZEFS, /* resizefs is in process */ 1197 }; 1198 1199 enum { 1200 CP_TIME, 1201 REQ_TIME, 1202 DISCARD_TIME, 1203 GC_TIME, 1204 DISABLE_TIME, 1205 UMOUNT_DISCARD_TIMEOUT, 1206 MAX_TIME, 1207 }; 1208 1209 enum { 1210 GC_NORMAL, 1211 GC_IDLE_CB, 1212 GC_IDLE_GREEDY, 1213 GC_IDLE_AT, 1214 GC_URGENT_HIGH, 1215 GC_URGENT_LOW, 1216 }; 1217 1218 enum { 1219 BGGC_MODE_ON, /* background gc is on */ 1220 BGGC_MODE_OFF, /* background gc is off */ 1221 BGGC_MODE_SYNC, /* 1222 * background gc is on, migrating blocks 1223 * like foreground gc 1224 */ 1225 }; 1226 1227 enum { 1228 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */ 1229 FS_MODE_LFS, /* use lfs allocation only */ 1230 }; 1231 1232 enum { 1233 WHINT_MODE_OFF, /* not pass down write hints */ 1234 WHINT_MODE_USER, /* try to pass down hints given by users */ 1235 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1236 }; 1237 1238 enum { 1239 ALLOC_MODE_DEFAULT, /* stay default */ 1240 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1241 }; 1242 1243 enum fsync_mode { 1244 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1245 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1246 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1247 }; 1248 1249 /* 1250 * this value is set in page as a private data which indicate that 1251 * the page is atomically written, and it is in inmem_pages list. 1252 */ 1253 #define ATOMIC_WRITTEN_PAGE ((unsigned long)-1) 1254 #define DUMMY_WRITTEN_PAGE ((unsigned long)-2) 1255 1256 #define IS_ATOMIC_WRITTEN_PAGE(page) \ 1257 (page_private(page) == ATOMIC_WRITTEN_PAGE) 1258 #define IS_DUMMY_WRITTEN_PAGE(page) \ 1259 (page_private(page) == DUMMY_WRITTEN_PAGE) 1260 1261 #ifdef CONFIG_F2FS_IO_TRACE 1262 #define IS_IO_TRACED_PAGE(page) \ 1263 (page_private(page) > 0 && \ 1264 page_private(page) < (unsigned long)PID_MAX_LIMIT) 1265 #else 1266 #define IS_IO_TRACED_PAGE(page) (0) 1267 #endif 1268 1269 /* For compression */ 1270 enum compress_algorithm_type { 1271 COMPRESS_LZO, 1272 COMPRESS_LZ4, 1273 COMPRESS_ZSTD, 1274 COMPRESS_LZORLE, 1275 COMPRESS_MAX, 1276 }; 1277 1278 enum compress_flag { 1279 COMPRESS_CHKSUM, 1280 COMPRESS_MAX_FLAG, 1281 }; 1282 1283 #define COMPRESS_DATA_RESERVED_SIZE 4 1284 struct compress_data { 1285 __le32 clen; /* compressed data size */ 1286 __le32 chksum; /* compressed data chksum */ 1287 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */ 1288 u8 cdata[]; /* compressed data */ 1289 }; 1290 1291 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data)) 1292 1293 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000 1294 1295 /* compress context */ 1296 struct compress_ctx { 1297 struct inode *inode; /* inode the context belong to */ 1298 pgoff_t cluster_idx; /* cluster index number */ 1299 unsigned int cluster_size; /* page count in cluster */ 1300 unsigned int log_cluster_size; /* log of cluster size */ 1301 struct page **rpages; /* pages store raw data in cluster */ 1302 unsigned int nr_rpages; /* total page number in rpages */ 1303 struct page **cpages; /* pages store compressed data in cluster */ 1304 unsigned int nr_cpages; /* total page number in cpages */ 1305 void *rbuf; /* virtual mapped address on rpages */ 1306 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1307 size_t rlen; /* valid data length in rbuf */ 1308 size_t clen; /* valid data length in cbuf */ 1309 void *private; /* payload buffer for specified compression algorithm */ 1310 void *private2; /* extra payload buffer */ 1311 }; 1312 1313 /* compress context for write IO path */ 1314 struct compress_io_ctx { 1315 u32 magic; /* magic number to indicate page is compressed */ 1316 struct inode *inode; /* inode the context belong to */ 1317 struct page **rpages; /* pages store raw data in cluster */ 1318 unsigned int nr_rpages; /* total page number in rpages */ 1319 atomic_t pending_pages; /* in-flight compressed page count */ 1320 }; 1321 1322 /* decompress io context for read IO path */ 1323 struct decompress_io_ctx { 1324 u32 magic; /* magic number to indicate page is compressed */ 1325 struct inode *inode; /* inode the context belong to */ 1326 pgoff_t cluster_idx; /* cluster index number */ 1327 unsigned int cluster_size; /* page count in cluster */ 1328 unsigned int log_cluster_size; /* log of cluster size */ 1329 struct page **rpages; /* pages store raw data in cluster */ 1330 unsigned int nr_rpages; /* total page number in rpages */ 1331 struct page **cpages; /* pages store compressed data in cluster */ 1332 unsigned int nr_cpages; /* total page number in cpages */ 1333 struct page **tpages; /* temp pages to pad holes in cluster */ 1334 void *rbuf; /* virtual mapped address on rpages */ 1335 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1336 size_t rlen; /* valid data length in rbuf */ 1337 size_t clen; /* valid data length in cbuf */ 1338 atomic_t pending_pages; /* in-flight compressed page count */ 1339 bool failed; /* indicate IO error during decompression */ 1340 void *private; /* payload buffer for specified decompression algorithm */ 1341 void *private2; /* extra payload buffer */ 1342 }; 1343 1344 #define NULL_CLUSTER ((unsigned int)(~0)) 1345 #define MIN_COMPRESS_LOG_SIZE 2 1346 #define MAX_COMPRESS_LOG_SIZE 8 1347 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size)) 1348 1349 struct f2fs_sb_info { 1350 struct super_block *sb; /* pointer to VFS super block */ 1351 struct proc_dir_entry *s_proc; /* proc entry */ 1352 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1353 struct rw_semaphore sb_lock; /* lock for raw super block */ 1354 int valid_super_block; /* valid super block no */ 1355 unsigned long s_flag; /* flags for sbi */ 1356 struct mutex writepages; /* mutex for writepages() */ 1357 1358 #ifdef CONFIG_BLK_DEV_ZONED 1359 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1360 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1361 #endif 1362 1363 /* for node-related operations */ 1364 struct f2fs_nm_info *nm_info; /* node manager */ 1365 struct inode *node_inode; /* cache node blocks */ 1366 1367 /* for segment-related operations */ 1368 struct f2fs_sm_info *sm_info; /* segment manager */ 1369 1370 /* for bio operations */ 1371 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1372 /* keep migration IO order for LFS mode */ 1373 struct rw_semaphore io_order_lock; 1374 mempool_t *write_io_dummy; /* Dummy pages */ 1375 1376 /* for checkpoint */ 1377 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1378 int cur_cp_pack; /* remain current cp pack */ 1379 spinlock_t cp_lock; /* for flag in ckpt */ 1380 struct inode *meta_inode; /* cache meta blocks */ 1381 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */ 1382 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1383 struct rw_semaphore node_write; /* locking node writes */ 1384 struct rw_semaphore node_change; /* locking node change */ 1385 wait_queue_head_t cp_wait; 1386 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1387 long interval_time[MAX_TIME]; /* to store thresholds */ 1388 1389 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1390 1391 spinlock_t fsync_node_lock; /* for node entry lock */ 1392 struct list_head fsync_node_list; /* node list head */ 1393 unsigned int fsync_seg_id; /* sequence id */ 1394 unsigned int fsync_node_num; /* number of node entries */ 1395 1396 /* for orphan inode, use 0'th array */ 1397 unsigned int max_orphans; /* max orphan inodes */ 1398 1399 /* for inode management */ 1400 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1401 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1402 struct mutex flush_lock; /* for flush exclusion */ 1403 1404 /* for extent tree cache */ 1405 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1406 struct mutex extent_tree_lock; /* locking extent radix tree */ 1407 struct list_head extent_list; /* lru list for shrinker */ 1408 spinlock_t extent_lock; /* locking extent lru list */ 1409 atomic_t total_ext_tree; /* extent tree count */ 1410 struct list_head zombie_list; /* extent zombie tree list */ 1411 atomic_t total_zombie_tree; /* extent zombie tree count */ 1412 atomic_t total_ext_node; /* extent info count */ 1413 1414 /* basic filesystem units */ 1415 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1416 unsigned int log_blocksize; /* log2 block size */ 1417 unsigned int blocksize; /* block size */ 1418 unsigned int root_ino_num; /* root inode number*/ 1419 unsigned int node_ino_num; /* node inode number*/ 1420 unsigned int meta_ino_num; /* meta inode number*/ 1421 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1422 unsigned int blocks_per_seg; /* blocks per segment */ 1423 unsigned int segs_per_sec; /* segments per section */ 1424 unsigned int secs_per_zone; /* sections per zone */ 1425 unsigned int total_sections; /* total section count */ 1426 unsigned int total_node_count; /* total node block count */ 1427 unsigned int total_valid_node_count; /* valid node block count */ 1428 loff_t max_file_blocks; /* max block index of file */ 1429 int dir_level; /* directory level */ 1430 int readdir_ra; /* readahead inode in readdir */ 1431 1432 block_t user_block_count; /* # of user blocks */ 1433 block_t total_valid_block_count; /* # of valid blocks */ 1434 block_t discard_blks; /* discard command candidats */ 1435 block_t last_valid_block_count; /* for recovery */ 1436 block_t reserved_blocks; /* configurable reserved blocks */ 1437 block_t current_reserved_blocks; /* current reserved blocks */ 1438 1439 /* Additional tracking for no checkpoint mode */ 1440 block_t unusable_block_count; /* # of blocks saved by last cp */ 1441 1442 unsigned int nquota_files; /* # of quota sysfile */ 1443 struct rw_semaphore quota_sem; /* blocking cp for flags */ 1444 1445 /* # of pages, see count_type */ 1446 atomic_t nr_pages[NR_COUNT_TYPE]; 1447 /* # of allocated blocks */ 1448 struct percpu_counter alloc_valid_block_count; 1449 1450 /* writeback control */ 1451 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1452 1453 /* valid inode count */ 1454 struct percpu_counter total_valid_inode_count; 1455 1456 struct f2fs_mount_info mount_opt; /* mount options */ 1457 1458 /* for cleaning operations */ 1459 struct rw_semaphore gc_lock; /* 1460 * semaphore for GC, avoid 1461 * race between GC and GC or CP 1462 */ 1463 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1464 struct atgc_management am; /* atgc management */ 1465 unsigned int cur_victim_sec; /* current victim section num */ 1466 unsigned int gc_mode; /* current GC state */ 1467 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1468 1469 /* for skip statistic */ 1470 unsigned int atomic_files; /* # of opened atomic file */ 1471 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1472 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1473 1474 /* threshold for gc trials on pinned files */ 1475 u64 gc_pin_file_threshold; 1476 struct rw_semaphore pin_sem; 1477 1478 /* maximum # of trials to find a victim segment for SSR and GC */ 1479 unsigned int max_victim_search; 1480 /* migration granularity of garbage collection, unit: segment */ 1481 unsigned int migration_granularity; 1482 1483 /* 1484 * for stat information. 1485 * one is for the LFS mode, and the other is for the SSR mode. 1486 */ 1487 #ifdef CONFIG_F2FS_STAT_FS 1488 struct f2fs_stat_info *stat_info; /* FS status information */ 1489 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1490 unsigned int segment_count[2]; /* # of allocated segments */ 1491 unsigned int block_count[2]; /* # of allocated blocks */ 1492 atomic_t inplace_count; /* # of inplace update */ 1493 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1494 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1495 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1496 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1497 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1498 atomic_t inline_inode; /* # of inline_data inodes */ 1499 atomic_t inline_dir; /* # of inline_dentry inodes */ 1500 atomic_t compr_inode; /* # of compressed inodes */ 1501 atomic64_t compr_blocks; /* # of compressed blocks */ 1502 atomic_t vw_cnt; /* # of volatile writes */ 1503 atomic_t max_aw_cnt; /* max # of atomic writes */ 1504 atomic_t max_vw_cnt; /* max # of volatile writes */ 1505 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1506 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1507 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1508 #endif 1509 spinlock_t stat_lock; /* lock for stat operations */ 1510 1511 /* For app/fs IO statistics */ 1512 spinlock_t iostat_lock; 1513 unsigned long long rw_iostat[NR_IO_TYPE]; 1514 unsigned long long prev_rw_iostat[NR_IO_TYPE]; 1515 bool iostat_enable; 1516 unsigned long iostat_next_period; 1517 unsigned int iostat_period_ms; 1518 1519 /* to attach REQ_META|REQ_FUA flags */ 1520 unsigned int data_io_flag; 1521 unsigned int node_io_flag; 1522 1523 /* For sysfs suppport */ 1524 struct kobject s_kobj; 1525 struct completion s_kobj_unregister; 1526 1527 /* For shrinker support */ 1528 struct list_head s_list; 1529 int s_ndevs; /* number of devices */ 1530 struct f2fs_dev_info *devs; /* for device list */ 1531 unsigned int dirty_device; /* for checkpoint data flush */ 1532 spinlock_t dev_lock; /* protect dirty_device */ 1533 struct mutex umount_mutex; 1534 unsigned int shrinker_run_no; 1535 1536 /* For write statistics */ 1537 u64 sectors_written_start; 1538 u64 kbytes_written; 1539 1540 /* Reference to checksum algorithm driver via cryptoapi */ 1541 struct crypto_shash *s_chksum_driver; 1542 1543 /* Precomputed FS UUID checksum for seeding other checksums */ 1544 __u32 s_chksum_seed; 1545 1546 struct workqueue_struct *post_read_wq; /* post read workqueue */ 1547 1548 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */ 1549 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */ 1550 1551 #ifdef CONFIG_F2FS_FS_COMPRESSION 1552 struct kmem_cache *page_array_slab; /* page array entry */ 1553 unsigned int page_array_slab_size; /* default page array slab size */ 1554 #endif 1555 }; 1556 1557 struct f2fs_private_dio { 1558 struct inode *inode; 1559 void *orig_private; 1560 bio_end_io_t *orig_end_io; 1561 bool write; 1562 }; 1563 1564 #ifdef CONFIG_F2FS_FAULT_INJECTION 1565 #define f2fs_show_injection_info(sbi, type) \ 1566 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \ 1567 KERN_INFO, sbi->sb->s_id, \ 1568 f2fs_fault_name[type], \ 1569 __func__, __builtin_return_address(0)) 1570 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1571 { 1572 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1573 1574 if (!ffi->inject_rate) 1575 return false; 1576 1577 if (!IS_FAULT_SET(ffi, type)) 1578 return false; 1579 1580 atomic_inc(&ffi->inject_ops); 1581 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1582 atomic_set(&ffi->inject_ops, 0); 1583 return true; 1584 } 1585 return false; 1586 } 1587 #else 1588 #define f2fs_show_injection_info(sbi, type) do { } while (0) 1589 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1590 { 1591 return false; 1592 } 1593 #endif 1594 1595 /* 1596 * Test if the mounted volume is a multi-device volume. 1597 * - For a single regular disk volume, sbi->s_ndevs is 0. 1598 * - For a single zoned disk volume, sbi->s_ndevs is 1. 1599 * - For a multi-device volume, sbi->s_ndevs is always 2 or more. 1600 */ 1601 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi) 1602 { 1603 return sbi->s_ndevs > 1; 1604 } 1605 1606 /* For write statistics. Suppose sector size is 512 bytes, 1607 * and the return value is in kbytes. s is of struct f2fs_sb_info. 1608 */ 1609 #define BD_PART_WRITTEN(s) \ 1610 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \ 1611 (s)->sectors_written_start) >> 1) 1612 1613 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1614 { 1615 unsigned long now = jiffies; 1616 1617 sbi->last_time[type] = now; 1618 1619 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1620 if (type == REQ_TIME) { 1621 sbi->last_time[DISCARD_TIME] = now; 1622 sbi->last_time[GC_TIME] = now; 1623 } 1624 } 1625 1626 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1627 { 1628 unsigned long interval = sbi->interval_time[type] * HZ; 1629 1630 return time_after(jiffies, sbi->last_time[type] + interval); 1631 } 1632 1633 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1634 int type) 1635 { 1636 unsigned long interval = sbi->interval_time[type] * HZ; 1637 unsigned int wait_ms = 0; 1638 long delta; 1639 1640 delta = (sbi->last_time[type] + interval) - jiffies; 1641 if (delta > 0) 1642 wait_ms = jiffies_to_msecs(delta); 1643 1644 return wait_ms; 1645 } 1646 1647 /* 1648 * Inline functions 1649 */ 1650 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1651 const void *address, unsigned int length) 1652 { 1653 struct { 1654 struct shash_desc shash; 1655 char ctx[4]; 1656 } desc; 1657 int err; 1658 1659 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1660 1661 desc.shash.tfm = sbi->s_chksum_driver; 1662 *(u32 *)desc.ctx = crc; 1663 1664 err = crypto_shash_update(&desc.shash, address, length); 1665 BUG_ON(err); 1666 1667 return *(u32 *)desc.ctx; 1668 } 1669 1670 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1671 unsigned int length) 1672 { 1673 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1674 } 1675 1676 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1677 void *buf, size_t buf_size) 1678 { 1679 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1680 } 1681 1682 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1683 const void *address, unsigned int length) 1684 { 1685 return __f2fs_crc32(sbi, crc, address, length); 1686 } 1687 1688 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1689 { 1690 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1691 } 1692 1693 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1694 { 1695 return sb->s_fs_info; 1696 } 1697 1698 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1699 { 1700 return F2FS_SB(inode->i_sb); 1701 } 1702 1703 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1704 { 1705 return F2FS_I_SB(mapping->host); 1706 } 1707 1708 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1709 { 1710 return F2FS_M_SB(page_file_mapping(page)); 1711 } 1712 1713 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1714 { 1715 return (struct f2fs_super_block *)(sbi->raw_super); 1716 } 1717 1718 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1719 { 1720 return (struct f2fs_checkpoint *)(sbi->ckpt); 1721 } 1722 1723 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1724 { 1725 return (struct f2fs_node *)page_address(page); 1726 } 1727 1728 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1729 { 1730 return &((struct f2fs_node *)page_address(page))->i; 1731 } 1732 1733 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1734 { 1735 return (struct f2fs_nm_info *)(sbi->nm_info); 1736 } 1737 1738 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1739 { 1740 return (struct f2fs_sm_info *)(sbi->sm_info); 1741 } 1742 1743 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1744 { 1745 return (struct sit_info *)(SM_I(sbi)->sit_info); 1746 } 1747 1748 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1749 { 1750 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1751 } 1752 1753 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1754 { 1755 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1756 } 1757 1758 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1759 { 1760 return sbi->meta_inode->i_mapping; 1761 } 1762 1763 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1764 { 1765 return sbi->node_inode->i_mapping; 1766 } 1767 1768 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1769 { 1770 return test_bit(type, &sbi->s_flag); 1771 } 1772 1773 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1774 { 1775 set_bit(type, &sbi->s_flag); 1776 } 1777 1778 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1779 { 1780 clear_bit(type, &sbi->s_flag); 1781 } 1782 1783 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1784 { 1785 return le64_to_cpu(cp->checkpoint_ver); 1786 } 1787 1788 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1789 { 1790 if (type < F2FS_MAX_QUOTAS) 1791 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1792 return 0; 1793 } 1794 1795 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1796 { 1797 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1798 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1799 } 1800 1801 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1802 { 1803 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1804 1805 return ckpt_flags & f; 1806 } 1807 1808 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1809 { 1810 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1811 } 1812 1813 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1814 { 1815 unsigned int ckpt_flags; 1816 1817 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1818 ckpt_flags |= f; 1819 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1820 } 1821 1822 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1823 { 1824 unsigned long flags; 1825 1826 spin_lock_irqsave(&sbi->cp_lock, flags); 1827 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1828 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1829 } 1830 1831 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1832 { 1833 unsigned int ckpt_flags; 1834 1835 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1836 ckpt_flags &= (~f); 1837 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1838 } 1839 1840 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1841 { 1842 unsigned long flags; 1843 1844 spin_lock_irqsave(&sbi->cp_lock, flags); 1845 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1846 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1847 } 1848 1849 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1850 { 1851 unsigned long flags; 1852 unsigned char *nat_bits; 1853 1854 /* 1855 * In order to re-enable nat_bits we need to call fsck.f2fs by 1856 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1857 * so let's rely on regular fsck or unclean shutdown. 1858 */ 1859 1860 if (lock) 1861 spin_lock_irqsave(&sbi->cp_lock, flags); 1862 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 1863 nat_bits = NM_I(sbi)->nat_bits; 1864 NM_I(sbi)->nat_bits = NULL; 1865 if (lock) 1866 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1867 1868 kvfree(nat_bits); 1869 } 1870 1871 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 1872 struct cp_control *cpc) 1873 { 1874 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 1875 1876 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 1877 } 1878 1879 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 1880 { 1881 down_read(&sbi->cp_rwsem); 1882 } 1883 1884 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 1885 { 1886 return down_read_trylock(&sbi->cp_rwsem); 1887 } 1888 1889 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 1890 { 1891 up_read(&sbi->cp_rwsem); 1892 } 1893 1894 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 1895 { 1896 down_write(&sbi->cp_rwsem); 1897 } 1898 1899 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 1900 { 1901 up_write(&sbi->cp_rwsem); 1902 } 1903 1904 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 1905 { 1906 int reason = CP_SYNC; 1907 1908 if (test_opt(sbi, FASTBOOT)) 1909 reason = CP_FASTBOOT; 1910 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 1911 reason = CP_UMOUNT; 1912 return reason; 1913 } 1914 1915 static inline bool __remain_node_summaries(int reason) 1916 { 1917 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 1918 } 1919 1920 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 1921 { 1922 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 1923 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 1924 } 1925 1926 /* 1927 * Check whether the inode has blocks or not 1928 */ 1929 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 1930 { 1931 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 1932 1933 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 1934 } 1935 1936 static inline bool f2fs_has_xattr_block(unsigned int ofs) 1937 { 1938 return ofs == XATTR_NODE_OFFSET; 1939 } 1940 1941 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 1942 struct inode *inode, bool cap) 1943 { 1944 if (!inode) 1945 return true; 1946 if (!test_opt(sbi, RESERVE_ROOT)) 1947 return false; 1948 if (IS_NOQUOTA(inode)) 1949 return true; 1950 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 1951 return true; 1952 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 1953 in_group_p(F2FS_OPTION(sbi).s_resgid)) 1954 return true; 1955 if (cap && capable(CAP_SYS_RESOURCE)) 1956 return true; 1957 return false; 1958 } 1959 1960 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 1961 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 1962 struct inode *inode, blkcnt_t *count) 1963 { 1964 blkcnt_t diff = 0, release = 0; 1965 block_t avail_user_block_count; 1966 int ret; 1967 1968 ret = dquot_reserve_block(inode, *count); 1969 if (ret) 1970 return ret; 1971 1972 if (time_to_inject(sbi, FAULT_BLOCK)) { 1973 f2fs_show_injection_info(sbi, FAULT_BLOCK); 1974 release = *count; 1975 goto release_quota; 1976 } 1977 1978 /* 1979 * let's increase this in prior to actual block count change in order 1980 * for f2fs_sync_file to avoid data races when deciding checkpoint. 1981 */ 1982 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 1983 1984 spin_lock(&sbi->stat_lock); 1985 sbi->total_valid_block_count += (block_t)(*count); 1986 avail_user_block_count = sbi->user_block_count - 1987 sbi->current_reserved_blocks; 1988 1989 if (!__allow_reserved_blocks(sbi, inode, true)) 1990 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 1991 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { 1992 if (avail_user_block_count > sbi->unusable_block_count) 1993 avail_user_block_count -= sbi->unusable_block_count; 1994 else 1995 avail_user_block_count = 0; 1996 } 1997 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 1998 diff = sbi->total_valid_block_count - avail_user_block_count; 1999 if (diff > *count) 2000 diff = *count; 2001 *count -= diff; 2002 release = diff; 2003 sbi->total_valid_block_count -= diff; 2004 if (!*count) { 2005 spin_unlock(&sbi->stat_lock); 2006 goto enospc; 2007 } 2008 } 2009 spin_unlock(&sbi->stat_lock); 2010 2011 if (unlikely(release)) { 2012 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2013 dquot_release_reservation_block(inode, release); 2014 } 2015 f2fs_i_blocks_write(inode, *count, true, true); 2016 return 0; 2017 2018 enospc: 2019 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2020 release_quota: 2021 dquot_release_reservation_block(inode, release); 2022 return -ENOSPC; 2023 } 2024 2025 __printf(2, 3) 2026 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...); 2027 2028 #define f2fs_err(sbi, fmt, ...) \ 2029 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__) 2030 #define f2fs_warn(sbi, fmt, ...) \ 2031 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__) 2032 #define f2fs_notice(sbi, fmt, ...) \ 2033 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__) 2034 #define f2fs_info(sbi, fmt, ...) \ 2035 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__) 2036 #define f2fs_debug(sbi, fmt, ...) \ 2037 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__) 2038 2039 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 2040 struct inode *inode, 2041 block_t count) 2042 { 2043 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 2044 2045 spin_lock(&sbi->stat_lock); 2046 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 2047 sbi->total_valid_block_count -= (block_t)count; 2048 if (sbi->reserved_blocks && 2049 sbi->current_reserved_blocks < sbi->reserved_blocks) 2050 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 2051 sbi->current_reserved_blocks + count); 2052 spin_unlock(&sbi->stat_lock); 2053 if (unlikely(inode->i_blocks < sectors)) { 2054 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu", 2055 inode->i_ino, 2056 (unsigned long long)inode->i_blocks, 2057 (unsigned long long)sectors); 2058 set_sbi_flag(sbi, SBI_NEED_FSCK); 2059 return; 2060 } 2061 f2fs_i_blocks_write(inode, count, false, true); 2062 } 2063 2064 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 2065 { 2066 atomic_inc(&sbi->nr_pages[count_type]); 2067 2068 if (count_type == F2FS_DIRTY_DENTS || 2069 count_type == F2FS_DIRTY_NODES || 2070 count_type == F2FS_DIRTY_META || 2071 count_type == F2FS_DIRTY_QDATA || 2072 count_type == F2FS_DIRTY_IMETA) 2073 set_sbi_flag(sbi, SBI_IS_DIRTY); 2074 } 2075 2076 static inline void inode_inc_dirty_pages(struct inode *inode) 2077 { 2078 atomic_inc(&F2FS_I(inode)->dirty_pages); 2079 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2080 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2081 if (IS_NOQUOTA(inode)) 2082 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2083 } 2084 2085 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 2086 { 2087 atomic_dec(&sbi->nr_pages[count_type]); 2088 } 2089 2090 static inline void inode_dec_dirty_pages(struct inode *inode) 2091 { 2092 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 2093 !S_ISLNK(inode->i_mode)) 2094 return; 2095 2096 atomic_dec(&F2FS_I(inode)->dirty_pages); 2097 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2098 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2099 if (IS_NOQUOTA(inode)) 2100 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2101 } 2102 2103 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 2104 { 2105 return atomic_read(&sbi->nr_pages[count_type]); 2106 } 2107 2108 static inline int get_dirty_pages(struct inode *inode) 2109 { 2110 return atomic_read(&F2FS_I(inode)->dirty_pages); 2111 } 2112 2113 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 2114 { 2115 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 2116 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 2117 sbi->log_blocks_per_seg; 2118 2119 return segs / sbi->segs_per_sec; 2120 } 2121 2122 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 2123 { 2124 return sbi->total_valid_block_count; 2125 } 2126 2127 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 2128 { 2129 return sbi->discard_blks; 2130 } 2131 2132 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 2133 { 2134 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2135 2136 /* return NAT or SIT bitmap */ 2137 if (flag == NAT_BITMAP) 2138 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 2139 else if (flag == SIT_BITMAP) 2140 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 2141 2142 return 0; 2143 } 2144 2145 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 2146 { 2147 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 2148 } 2149 2150 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 2151 { 2152 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2153 int offset; 2154 2155 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 2156 offset = (flag == SIT_BITMAP) ? 2157 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 2158 /* 2159 * if large_nat_bitmap feature is enabled, leave checksum 2160 * protection for all nat/sit bitmaps. 2161 */ 2162 return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32); 2163 } 2164 2165 if (__cp_payload(sbi) > 0) { 2166 if (flag == NAT_BITMAP) 2167 return &ckpt->sit_nat_version_bitmap; 2168 else 2169 return (unsigned char *)ckpt + F2FS_BLKSIZE; 2170 } else { 2171 offset = (flag == NAT_BITMAP) ? 2172 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 2173 return &ckpt->sit_nat_version_bitmap + offset; 2174 } 2175 } 2176 2177 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 2178 { 2179 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2180 2181 if (sbi->cur_cp_pack == 2) 2182 start_addr += sbi->blocks_per_seg; 2183 return start_addr; 2184 } 2185 2186 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 2187 { 2188 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2189 2190 if (sbi->cur_cp_pack == 1) 2191 start_addr += sbi->blocks_per_seg; 2192 return start_addr; 2193 } 2194 2195 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 2196 { 2197 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 2198 } 2199 2200 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 2201 { 2202 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 2203 } 2204 2205 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 2206 struct inode *inode, bool is_inode) 2207 { 2208 block_t valid_block_count; 2209 unsigned int valid_node_count, user_block_count; 2210 int err; 2211 2212 if (is_inode) { 2213 if (inode) { 2214 err = dquot_alloc_inode(inode); 2215 if (err) 2216 return err; 2217 } 2218 } else { 2219 err = dquot_reserve_block(inode, 1); 2220 if (err) 2221 return err; 2222 } 2223 2224 if (time_to_inject(sbi, FAULT_BLOCK)) { 2225 f2fs_show_injection_info(sbi, FAULT_BLOCK); 2226 goto enospc; 2227 } 2228 2229 spin_lock(&sbi->stat_lock); 2230 2231 valid_block_count = sbi->total_valid_block_count + 2232 sbi->current_reserved_blocks + 1; 2233 2234 if (!__allow_reserved_blocks(sbi, inode, false)) 2235 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 2236 user_block_count = sbi->user_block_count; 2237 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 2238 user_block_count -= sbi->unusable_block_count; 2239 2240 if (unlikely(valid_block_count > user_block_count)) { 2241 spin_unlock(&sbi->stat_lock); 2242 goto enospc; 2243 } 2244 2245 valid_node_count = sbi->total_valid_node_count + 1; 2246 if (unlikely(valid_node_count > sbi->total_node_count)) { 2247 spin_unlock(&sbi->stat_lock); 2248 goto enospc; 2249 } 2250 2251 sbi->total_valid_node_count++; 2252 sbi->total_valid_block_count++; 2253 spin_unlock(&sbi->stat_lock); 2254 2255 if (inode) { 2256 if (is_inode) 2257 f2fs_mark_inode_dirty_sync(inode, true); 2258 else 2259 f2fs_i_blocks_write(inode, 1, true, true); 2260 } 2261 2262 percpu_counter_inc(&sbi->alloc_valid_block_count); 2263 return 0; 2264 2265 enospc: 2266 if (is_inode) { 2267 if (inode) 2268 dquot_free_inode(inode); 2269 } else { 2270 dquot_release_reservation_block(inode, 1); 2271 } 2272 return -ENOSPC; 2273 } 2274 2275 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2276 struct inode *inode, bool is_inode) 2277 { 2278 spin_lock(&sbi->stat_lock); 2279 2280 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2281 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2282 2283 sbi->total_valid_node_count--; 2284 sbi->total_valid_block_count--; 2285 if (sbi->reserved_blocks && 2286 sbi->current_reserved_blocks < sbi->reserved_blocks) 2287 sbi->current_reserved_blocks++; 2288 2289 spin_unlock(&sbi->stat_lock); 2290 2291 if (is_inode) { 2292 dquot_free_inode(inode); 2293 } else { 2294 if (unlikely(inode->i_blocks == 0)) { 2295 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu", 2296 inode->i_ino, 2297 (unsigned long long)inode->i_blocks); 2298 set_sbi_flag(sbi, SBI_NEED_FSCK); 2299 return; 2300 } 2301 f2fs_i_blocks_write(inode, 1, false, true); 2302 } 2303 } 2304 2305 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2306 { 2307 return sbi->total_valid_node_count; 2308 } 2309 2310 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2311 { 2312 percpu_counter_inc(&sbi->total_valid_inode_count); 2313 } 2314 2315 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2316 { 2317 percpu_counter_dec(&sbi->total_valid_inode_count); 2318 } 2319 2320 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2321 { 2322 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2323 } 2324 2325 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2326 pgoff_t index, bool for_write) 2327 { 2328 struct page *page; 2329 2330 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2331 if (!for_write) 2332 page = find_get_page_flags(mapping, index, 2333 FGP_LOCK | FGP_ACCESSED); 2334 else 2335 page = find_lock_page(mapping, index); 2336 if (page) 2337 return page; 2338 2339 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2340 f2fs_show_injection_info(F2FS_M_SB(mapping), 2341 FAULT_PAGE_ALLOC); 2342 return NULL; 2343 } 2344 } 2345 2346 if (!for_write) 2347 return grab_cache_page(mapping, index); 2348 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2349 } 2350 2351 static inline struct page *f2fs_pagecache_get_page( 2352 struct address_space *mapping, pgoff_t index, 2353 int fgp_flags, gfp_t gfp_mask) 2354 { 2355 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2356 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET); 2357 return NULL; 2358 } 2359 2360 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2361 } 2362 2363 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2364 { 2365 char *src_kaddr = kmap(src); 2366 char *dst_kaddr = kmap(dst); 2367 2368 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2369 kunmap(dst); 2370 kunmap(src); 2371 } 2372 2373 static inline void f2fs_put_page(struct page *page, int unlock) 2374 { 2375 if (!page) 2376 return; 2377 2378 if (unlock) { 2379 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2380 unlock_page(page); 2381 } 2382 put_page(page); 2383 } 2384 2385 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2386 { 2387 if (dn->node_page) 2388 f2fs_put_page(dn->node_page, 1); 2389 if (dn->inode_page && dn->node_page != dn->inode_page) 2390 f2fs_put_page(dn->inode_page, 0); 2391 dn->node_page = NULL; 2392 dn->inode_page = NULL; 2393 } 2394 2395 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2396 size_t size) 2397 { 2398 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2399 } 2400 2401 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2402 gfp_t flags) 2403 { 2404 void *entry; 2405 2406 entry = kmem_cache_alloc(cachep, flags); 2407 if (!entry) 2408 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2409 return entry; 2410 } 2411 2412 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type) 2413 { 2414 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2415 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2416 get_pages(sbi, F2FS_WB_CP_DATA) || 2417 get_pages(sbi, F2FS_DIO_READ) || 2418 get_pages(sbi, F2FS_DIO_WRITE)) 2419 return true; 2420 2421 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info && 2422 atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) 2423 return true; 2424 2425 if (SM_I(sbi) && SM_I(sbi)->fcc_info && 2426 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2427 return true; 2428 return false; 2429 } 2430 2431 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2432 { 2433 if (sbi->gc_mode == GC_URGENT_HIGH) 2434 return true; 2435 2436 if (is_inflight_io(sbi, type)) 2437 return false; 2438 2439 if (sbi->gc_mode == GC_URGENT_LOW && 2440 (type == DISCARD_TIME || type == GC_TIME)) 2441 return true; 2442 2443 return f2fs_time_over(sbi, type); 2444 } 2445 2446 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2447 unsigned long index, void *item) 2448 { 2449 while (radix_tree_insert(root, index, item)) 2450 cond_resched(); 2451 } 2452 2453 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2454 2455 static inline bool IS_INODE(struct page *page) 2456 { 2457 struct f2fs_node *p = F2FS_NODE(page); 2458 2459 return RAW_IS_INODE(p); 2460 } 2461 2462 static inline int offset_in_addr(struct f2fs_inode *i) 2463 { 2464 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2465 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2466 } 2467 2468 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2469 { 2470 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2471 } 2472 2473 static inline int f2fs_has_extra_attr(struct inode *inode); 2474 static inline block_t data_blkaddr(struct inode *inode, 2475 struct page *node_page, unsigned int offset) 2476 { 2477 struct f2fs_node *raw_node; 2478 __le32 *addr_array; 2479 int base = 0; 2480 bool is_inode = IS_INODE(node_page); 2481 2482 raw_node = F2FS_NODE(node_page); 2483 2484 if (is_inode) { 2485 if (!inode) 2486 /* from GC path only */ 2487 base = offset_in_addr(&raw_node->i); 2488 else if (f2fs_has_extra_attr(inode)) 2489 base = get_extra_isize(inode); 2490 } 2491 2492 addr_array = blkaddr_in_node(raw_node); 2493 return le32_to_cpu(addr_array[base + offset]); 2494 } 2495 2496 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn) 2497 { 2498 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node); 2499 } 2500 2501 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2502 { 2503 int mask; 2504 2505 addr += (nr >> 3); 2506 mask = 1 << (7 - (nr & 0x07)); 2507 return mask & *addr; 2508 } 2509 2510 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2511 { 2512 int mask; 2513 2514 addr += (nr >> 3); 2515 mask = 1 << (7 - (nr & 0x07)); 2516 *addr |= mask; 2517 } 2518 2519 static inline void f2fs_clear_bit(unsigned int nr, char *addr) 2520 { 2521 int mask; 2522 2523 addr += (nr >> 3); 2524 mask = 1 << (7 - (nr & 0x07)); 2525 *addr &= ~mask; 2526 } 2527 2528 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2529 { 2530 int mask; 2531 int ret; 2532 2533 addr += (nr >> 3); 2534 mask = 1 << (7 - (nr & 0x07)); 2535 ret = mask & *addr; 2536 *addr |= mask; 2537 return ret; 2538 } 2539 2540 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2541 { 2542 int mask; 2543 int ret; 2544 2545 addr += (nr >> 3); 2546 mask = 1 << (7 - (nr & 0x07)); 2547 ret = mask & *addr; 2548 *addr &= ~mask; 2549 return ret; 2550 } 2551 2552 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2553 { 2554 int mask; 2555 2556 addr += (nr >> 3); 2557 mask = 1 << (7 - (nr & 0x07)); 2558 *addr ^= mask; 2559 } 2560 2561 /* 2562 * On-disk inode flags (f2fs_inode::i_flags) 2563 */ 2564 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2565 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2566 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2567 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2568 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2569 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2570 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */ 2571 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2572 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2573 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2574 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */ 2575 2576 /* Flags that should be inherited by new inodes from their parent. */ 2577 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \ 2578 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2579 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL) 2580 2581 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2582 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2583 F2FS_CASEFOLD_FL)) 2584 2585 /* Flags that are appropriate for non-directories/regular files. */ 2586 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2587 2588 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2589 { 2590 if (S_ISDIR(mode)) 2591 return flags; 2592 else if (S_ISREG(mode)) 2593 return flags & F2FS_REG_FLMASK; 2594 else 2595 return flags & F2FS_OTHER_FLMASK; 2596 } 2597 2598 static inline void __mark_inode_dirty_flag(struct inode *inode, 2599 int flag, bool set) 2600 { 2601 switch (flag) { 2602 case FI_INLINE_XATTR: 2603 case FI_INLINE_DATA: 2604 case FI_INLINE_DENTRY: 2605 case FI_NEW_INODE: 2606 if (set) 2607 return; 2608 fallthrough; 2609 case FI_DATA_EXIST: 2610 case FI_INLINE_DOTS: 2611 case FI_PIN_FILE: 2612 f2fs_mark_inode_dirty_sync(inode, true); 2613 } 2614 } 2615 2616 static inline void set_inode_flag(struct inode *inode, int flag) 2617 { 2618 set_bit(flag, F2FS_I(inode)->flags); 2619 __mark_inode_dirty_flag(inode, flag, true); 2620 } 2621 2622 static inline int is_inode_flag_set(struct inode *inode, int flag) 2623 { 2624 return test_bit(flag, F2FS_I(inode)->flags); 2625 } 2626 2627 static inline void clear_inode_flag(struct inode *inode, int flag) 2628 { 2629 clear_bit(flag, F2FS_I(inode)->flags); 2630 __mark_inode_dirty_flag(inode, flag, false); 2631 } 2632 2633 static inline bool f2fs_verity_in_progress(struct inode *inode) 2634 { 2635 return IS_ENABLED(CONFIG_FS_VERITY) && 2636 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS); 2637 } 2638 2639 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2640 { 2641 F2FS_I(inode)->i_acl_mode = mode; 2642 set_inode_flag(inode, FI_ACL_MODE); 2643 f2fs_mark_inode_dirty_sync(inode, false); 2644 } 2645 2646 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2647 { 2648 if (inc) 2649 inc_nlink(inode); 2650 else 2651 drop_nlink(inode); 2652 f2fs_mark_inode_dirty_sync(inode, true); 2653 } 2654 2655 static inline void f2fs_i_blocks_write(struct inode *inode, 2656 block_t diff, bool add, bool claim) 2657 { 2658 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2659 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2660 2661 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2662 if (add) { 2663 if (claim) 2664 dquot_claim_block(inode, diff); 2665 else 2666 dquot_alloc_block_nofail(inode, diff); 2667 } else { 2668 dquot_free_block(inode, diff); 2669 } 2670 2671 f2fs_mark_inode_dirty_sync(inode, true); 2672 if (clean || recover) 2673 set_inode_flag(inode, FI_AUTO_RECOVER); 2674 } 2675 2676 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2677 { 2678 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2679 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2680 2681 if (i_size_read(inode) == i_size) 2682 return; 2683 2684 i_size_write(inode, i_size); 2685 f2fs_mark_inode_dirty_sync(inode, true); 2686 if (clean || recover) 2687 set_inode_flag(inode, FI_AUTO_RECOVER); 2688 } 2689 2690 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2691 { 2692 F2FS_I(inode)->i_current_depth = depth; 2693 f2fs_mark_inode_dirty_sync(inode, true); 2694 } 2695 2696 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2697 unsigned int count) 2698 { 2699 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2700 f2fs_mark_inode_dirty_sync(inode, true); 2701 } 2702 2703 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2704 { 2705 F2FS_I(inode)->i_xattr_nid = xnid; 2706 f2fs_mark_inode_dirty_sync(inode, true); 2707 } 2708 2709 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2710 { 2711 F2FS_I(inode)->i_pino = pino; 2712 f2fs_mark_inode_dirty_sync(inode, true); 2713 } 2714 2715 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2716 { 2717 struct f2fs_inode_info *fi = F2FS_I(inode); 2718 2719 if (ri->i_inline & F2FS_INLINE_XATTR) 2720 set_bit(FI_INLINE_XATTR, fi->flags); 2721 if (ri->i_inline & F2FS_INLINE_DATA) 2722 set_bit(FI_INLINE_DATA, fi->flags); 2723 if (ri->i_inline & F2FS_INLINE_DENTRY) 2724 set_bit(FI_INLINE_DENTRY, fi->flags); 2725 if (ri->i_inline & F2FS_DATA_EXIST) 2726 set_bit(FI_DATA_EXIST, fi->flags); 2727 if (ri->i_inline & F2FS_INLINE_DOTS) 2728 set_bit(FI_INLINE_DOTS, fi->flags); 2729 if (ri->i_inline & F2FS_EXTRA_ATTR) 2730 set_bit(FI_EXTRA_ATTR, fi->flags); 2731 if (ri->i_inline & F2FS_PIN_FILE) 2732 set_bit(FI_PIN_FILE, fi->flags); 2733 } 2734 2735 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2736 { 2737 ri->i_inline = 0; 2738 2739 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2740 ri->i_inline |= F2FS_INLINE_XATTR; 2741 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2742 ri->i_inline |= F2FS_INLINE_DATA; 2743 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2744 ri->i_inline |= F2FS_INLINE_DENTRY; 2745 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2746 ri->i_inline |= F2FS_DATA_EXIST; 2747 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2748 ri->i_inline |= F2FS_INLINE_DOTS; 2749 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2750 ri->i_inline |= F2FS_EXTRA_ATTR; 2751 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2752 ri->i_inline |= F2FS_PIN_FILE; 2753 } 2754 2755 static inline int f2fs_has_extra_attr(struct inode *inode) 2756 { 2757 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2758 } 2759 2760 static inline int f2fs_has_inline_xattr(struct inode *inode) 2761 { 2762 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2763 } 2764 2765 static inline int f2fs_compressed_file(struct inode *inode) 2766 { 2767 return S_ISREG(inode->i_mode) && 2768 is_inode_flag_set(inode, FI_COMPRESSED_FILE); 2769 } 2770 2771 static inline unsigned int addrs_per_inode(struct inode *inode) 2772 { 2773 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) - 2774 get_inline_xattr_addrs(inode); 2775 2776 if (!f2fs_compressed_file(inode)) 2777 return addrs; 2778 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size); 2779 } 2780 2781 static inline unsigned int addrs_per_block(struct inode *inode) 2782 { 2783 if (!f2fs_compressed_file(inode)) 2784 return DEF_ADDRS_PER_BLOCK; 2785 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size); 2786 } 2787 2788 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2789 { 2790 struct f2fs_inode *ri = F2FS_INODE(page); 2791 2792 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2793 get_inline_xattr_addrs(inode)]); 2794 } 2795 2796 static inline int inline_xattr_size(struct inode *inode) 2797 { 2798 if (f2fs_has_inline_xattr(inode)) 2799 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2800 return 0; 2801 } 2802 2803 static inline int f2fs_has_inline_data(struct inode *inode) 2804 { 2805 return is_inode_flag_set(inode, FI_INLINE_DATA); 2806 } 2807 2808 static inline int f2fs_exist_data(struct inode *inode) 2809 { 2810 return is_inode_flag_set(inode, FI_DATA_EXIST); 2811 } 2812 2813 static inline int f2fs_has_inline_dots(struct inode *inode) 2814 { 2815 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2816 } 2817 2818 static inline int f2fs_is_mmap_file(struct inode *inode) 2819 { 2820 return is_inode_flag_set(inode, FI_MMAP_FILE); 2821 } 2822 2823 static inline bool f2fs_is_pinned_file(struct inode *inode) 2824 { 2825 return is_inode_flag_set(inode, FI_PIN_FILE); 2826 } 2827 2828 static inline bool f2fs_is_atomic_file(struct inode *inode) 2829 { 2830 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2831 } 2832 2833 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2834 { 2835 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 2836 } 2837 2838 static inline bool f2fs_is_volatile_file(struct inode *inode) 2839 { 2840 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 2841 } 2842 2843 static inline bool f2fs_is_first_block_written(struct inode *inode) 2844 { 2845 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 2846 } 2847 2848 static inline bool f2fs_is_drop_cache(struct inode *inode) 2849 { 2850 return is_inode_flag_set(inode, FI_DROP_CACHE); 2851 } 2852 2853 static inline void *inline_data_addr(struct inode *inode, struct page *page) 2854 { 2855 struct f2fs_inode *ri = F2FS_INODE(page); 2856 int extra_size = get_extra_isize(inode); 2857 2858 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 2859 } 2860 2861 static inline int f2fs_has_inline_dentry(struct inode *inode) 2862 { 2863 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 2864 } 2865 2866 static inline int is_file(struct inode *inode, int type) 2867 { 2868 return F2FS_I(inode)->i_advise & type; 2869 } 2870 2871 static inline void set_file(struct inode *inode, int type) 2872 { 2873 F2FS_I(inode)->i_advise |= type; 2874 f2fs_mark_inode_dirty_sync(inode, true); 2875 } 2876 2877 static inline void clear_file(struct inode *inode, int type) 2878 { 2879 F2FS_I(inode)->i_advise &= ~type; 2880 f2fs_mark_inode_dirty_sync(inode, true); 2881 } 2882 2883 static inline bool f2fs_is_time_consistent(struct inode *inode) 2884 { 2885 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 2886 return false; 2887 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 2888 return false; 2889 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 2890 return false; 2891 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 2892 &F2FS_I(inode)->i_crtime)) 2893 return false; 2894 return true; 2895 } 2896 2897 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 2898 { 2899 bool ret; 2900 2901 if (dsync) { 2902 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2903 2904 spin_lock(&sbi->inode_lock[DIRTY_META]); 2905 ret = list_empty(&F2FS_I(inode)->gdirty_list); 2906 spin_unlock(&sbi->inode_lock[DIRTY_META]); 2907 return ret; 2908 } 2909 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 2910 file_keep_isize(inode) || 2911 i_size_read(inode) & ~PAGE_MASK) 2912 return false; 2913 2914 if (!f2fs_is_time_consistent(inode)) 2915 return false; 2916 2917 spin_lock(&F2FS_I(inode)->i_size_lock); 2918 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 2919 spin_unlock(&F2FS_I(inode)->i_size_lock); 2920 2921 return ret; 2922 } 2923 2924 static inline bool f2fs_readonly(struct super_block *sb) 2925 { 2926 return sb_rdonly(sb); 2927 } 2928 2929 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 2930 { 2931 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 2932 } 2933 2934 static inline bool is_dot_dotdot(const u8 *name, size_t len) 2935 { 2936 if (len == 1 && name[0] == '.') 2937 return true; 2938 2939 if (len == 2 && name[0] == '.' && name[1] == '.') 2940 return true; 2941 2942 return false; 2943 } 2944 2945 static inline bool f2fs_may_extent_tree(struct inode *inode) 2946 { 2947 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2948 2949 if (!test_opt(sbi, EXTENT_CACHE) || 2950 is_inode_flag_set(inode, FI_NO_EXTENT) || 2951 is_inode_flag_set(inode, FI_COMPRESSED_FILE)) 2952 return false; 2953 2954 /* 2955 * for recovered files during mount do not create extents 2956 * if shrinker is not registered. 2957 */ 2958 if (list_empty(&sbi->s_list)) 2959 return false; 2960 2961 return S_ISREG(inode->i_mode); 2962 } 2963 2964 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 2965 size_t size, gfp_t flags) 2966 { 2967 if (time_to_inject(sbi, FAULT_KMALLOC)) { 2968 f2fs_show_injection_info(sbi, FAULT_KMALLOC); 2969 return NULL; 2970 } 2971 2972 return kmalloc(size, flags); 2973 } 2974 2975 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 2976 size_t size, gfp_t flags) 2977 { 2978 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 2979 } 2980 2981 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 2982 size_t size, gfp_t flags) 2983 { 2984 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 2985 f2fs_show_injection_info(sbi, FAULT_KVMALLOC); 2986 return NULL; 2987 } 2988 2989 return kvmalloc(size, flags); 2990 } 2991 2992 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 2993 size_t size, gfp_t flags) 2994 { 2995 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 2996 } 2997 2998 static inline int get_extra_isize(struct inode *inode) 2999 { 3000 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 3001 } 3002 3003 static inline int get_inline_xattr_addrs(struct inode *inode) 3004 { 3005 return F2FS_I(inode)->i_inline_xattr_size; 3006 } 3007 3008 #define f2fs_get_inode_mode(i) \ 3009 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 3010 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 3011 3012 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 3013 (offsetof(struct f2fs_inode, i_extra_end) - \ 3014 offsetof(struct f2fs_inode, i_extra_isize)) \ 3015 3016 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 3017 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 3018 ((offsetof(typeof(*(f2fs_inode)), field) + \ 3019 sizeof((f2fs_inode)->field)) \ 3020 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 3021 3022 #define DEFAULT_IOSTAT_PERIOD_MS 3000 3023 #define MIN_IOSTAT_PERIOD_MS 100 3024 /* maximum period of iostat tracing is 1 day */ 3025 #define MAX_IOSTAT_PERIOD_MS 8640000 3026 3027 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 3028 { 3029 int i; 3030 3031 spin_lock(&sbi->iostat_lock); 3032 for (i = 0; i < NR_IO_TYPE; i++) { 3033 sbi->rw_iostat[i] = 0; 3034 sbi->prev_rw_iostat[i] = 0; 3035 } 3036 spin_unlock(&sbi->iostat_lock); 3037 } 3038 3039 extern void f2fs_record_iostat(struct f2fs_sb_info *sbi); 3040 3041 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 3042 enum iostat_type type, unsigned long long io_bytes) 3043 { 3044 if (!sbi->iostat_enable) 3045 return; 3046 spin_lock(&sbi->iostat_lock); 3047 sbi->rw_iostat[type] += io_bytes; 3048 3049 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 3050 sbi->rw_iostat[APP_BUFFERED_IO] = 3051 sbi->rw_iostat[APP_WRITE_IO] - 3052 sbi->rw_iostat[APP_DIRECT_IO]; 3053 3054 if (type == APP_READ_IO || type == APP_DIRECT_READ_IO) 3055 sbi->rw_iostat[APP_BUFFERED_READ_IO] = 3056 sbi->rw_iostat[APP_READ_IO] - 3057 sbi->rw_iostat[APP_DIRECT_READ_IO]; 3058 spin_unlock(&sbi->iostat_lock); 3059 3060 f2fs_record_iostat(sbi); 3061 } 3062 3063 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 3064 3065 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META) 3066 3067 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3068 block_t blkaddr, int type); 3069 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 3070 block_t blkaddr, int type) 3071 { 3072 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 3073 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.", 3074 blkaddr, type); 3075 f2fs_bug_on(sbi, 1); 3076 } 3077 } 3078 3079 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 3080 { 3081 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR || 3082 blkaddr == COMPRESS_ADDR) 3083 return false; 3084 return true; 3085 } 3086 3087 static inline void f2fs_set_page_private(struct page *page, 3088 unsigned long data) 3089 { 3090 if (PagePrivate(page)) 3091 return; 3092 3093 attach_page_private(page, (void *)data); 3094 } 3095 3096 static inline void f2fs_clear_page_private(struct page *page) 3097 { 3098 detach_page_private(page); 3099 } 3100 3101 /* 3102 * file.c 3103 */ 3104 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 3105 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 3106 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock); 3107 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); 3108 int f2fs_truncate(struct inode *inode); 3109 int f2fs_getattr(const struct path *path, struct kstat *stat, 3110 u32 request_mask, unsigned int flags); 3111 int f2fs_setattr(struct dentry *dentry, struct iattr *attr); 3112 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 3113 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 3114 int f2fs_precache_extents(struct inode *inode); 3115 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 3116 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 3117 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 3118 int f2fs_pin_file_control(struct inode *inode, bool inc); 3119 3120 /* 3121 * inode.c 3122 */ 3123 void f2fs_set_inode_flags(struct inode *inode); 3124 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 3125 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 3126 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 3127 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 3128 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 3129 void f2fs_update_inode(struct inode *inode, struct page *node_page); 3130 void f2fs_update_inode_page(struct inode *inode); 3131 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 3132 void f2fs_evict_inode(struct inode *inode); 3133 void f2fs_handle_failed_inode(struct inode *inode); 3134 3135 /* 3136 * namei.c 3137 */ 3138 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 3139 bool hot, bool set); 3140 struct dentry *f2fs_get_parent(struct dentry *child); 3141 3142 /* 3143 * dir.c 3144 */ 3145 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 3146 int f2fs_init_casefolded_name(const struct inode *dir, 3147 struct f2fs_filename *fname); 3148 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname, 3149 int lookup, struct f2fs_filename *fname); 3150 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry, 3151 struct f2fs_filename *fname); 3152 void f2fs_free_filename(struct f2fs_filename *fname); 3153 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d, 3154 const struct f2fs_filename *fname, int *max_slots); 3155 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 3156 unsigned int start_pos, struct fscrypt_str *fstr); 3157 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 3158 struct f2fs_dentry_ptr *d); 3159 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 3160 const struct f2fs_filename *fname, struct page *dpage); 3161 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 3162 unsigned int current_depth); 3163 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 3164 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 3165 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 3166 const struct f2fs_filename *fname, 3167 struct page **res_page); 3168 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 3169 const struct qstr *child, struct page **res_page); 3170 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 3171 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 3172 struct page **page); 3173 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 3174 struct page *page, struct inode *inode); 3175 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage, 3176 const struct f2fs_filename *fname); 3177 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 3178 const struct fscrypt_str *name, f2fs_hash_t name_hash, 3179 unsigned int bit_pos); 3180 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname, 3181 struct inode *inode, nid_t ino, umode_t mode); 3182 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname, 3183 struct inode *inode, nid_t ino, umode_t mode); 3184 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 3185 struct inode *inode, nid_t ino, umode_t mode); 3186 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 3187 struct inode *dir, struct inode *inode); 3188 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 3189 bool f2fs_empty_dir(struct inode *dir); 3190 3191 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 3192 { 3193 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 3194 inode, inode->i_ino, inode->i_mode); 3195 } 3196 3197 /* 3198 * super.c 3199 */ 3200 int f2fs_inode_dirtied(struct inode *inode, bool sync); 3201 void f2fs_inode_synced(struct inode *inode); 3202 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 3203 int f2fs_quota_sync(struct super_block *sb, int type); 3204 void f2fs_quota_off_umount(struct super_block *sb); 3205 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 3206 int f2fs_sync_fs(struct super_block *sb, int sync); 3207 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 3208 3209 /* 3210 * hash.c 3211 */ 3212 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname); 3213 3214 /* 3215 * node.c 3216 */ 3217 struct dnode_of_data; 3218 struct node_info; 3219 3220 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); 3221 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); 3222 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); 3223 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); 3224 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); 3225 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); 3226 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); 3227 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); 3228 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); 3229 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 3230 struct node_info *ni); 3231 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); 3232 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); 3233 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); 3234 int f2fs_truncate_xattr_node(struct inode *inode); 3235 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 3236 unsigned int seq_id); 3237 int f2fs_remove_inode_page(struct inode *inode); 3238 struct page *f2fs_new_inode_page(struct inode *inode); 3239 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); 3240 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); 3241 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); 3242 struct page *f2fs_get_node_page_ra(struct page *parent, int start); 3243 int f2fs_move_node_page(struct page *node_page, int gc_type); 3244 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi); 3245 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 3246 struct writeback_control *wbc, bool atomic, 3247 unsigned int *seq_id); 3248 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 3249 struct writeback_control *wbc, 3250 bool do_balance, enum iostat_type io_type); 3251 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); 3252 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); 3253 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); 3254 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); 3255 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); 3256 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page); 3257 int f2fs_recover_xattr_data(struct inode *inode, struct page *page); 3258 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); 3259 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 3260 unsigned int segno, struct f2fs_summary_block *sum); 3261 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3262 int f2fs_build_node_manager(struct f2fs_sb_info *sbi); 3263 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); 3264 int __init f2fs_create_node_manager_caches(void); 3265 void f2fs_destroy_node_manager_caches(void); 3266 3267 /* 3268 * segment.c 3269 */ 3270 bool f2fs_need_SSR(struct f2fs_sb_info *sbi); 3271 void f2fs_register_inmem_page(struct inode *inode, struct page *page); 3272 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); 3273 void f2fs_drop_inmem_pages(struct inode *inode); 3274 void f2fs_drop_inmem_page(struct inode *inode, struct page *page); 3275 int f2fs_commit_inmem_pages(struct inode *inode); 3276 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); 3277 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg); 3278 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); 3279 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); 3280 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); 3281 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); 3282 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); 3283 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); 3284 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); 3285 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); 3286 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); 3287 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, 3288 struct cp_control *cpc); 3289 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); 3290 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi); 3291 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable); 3292 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); 3293 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); 3294 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi); 3295 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi); 3296 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi); 3297 void f2fs_get_new_segment(struct f2fs_sb_info *sbi, 3298 unsigned int *newseg, bool new_sec, int dir); 3299 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type, 3300 unsigned int start, unsigned int end); 3301 void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type); 3302 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3303 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3304 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3305 struct cp_control *cpc); 3306 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3307 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3308 block_t blk_addr); 3309 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3310 enum iostat_type io_type); 3311 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3312 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3313 struct f2fs_io_info *fio); 3314 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3315 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3316 block_t old_blkaddr, block_t new_blkaddr, 3317 bool recover_curseg, bool recover_newaddr, 3318 bool from_gc); 3319 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3320 block_t old_addr, block_t new_addr, 3321 unsigned char version, bool recover_curseg, 3322 bool recover_newaddr); 3323 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3324 block_t old_blkaddr, block_t *new_blkaddr, 3325 struct f2fs_summary *sum, int type, 3326 struct f2fs_io_info *fio); 3327 void f2fs_wait_on_page_writeback(struct page *page, 3328 enum page_type type, bool ordered, bool locked); 3329 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3330 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3331 block_t len); 3332 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3333 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3334 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3335 unsigned int val, int alloc); 3336 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3337 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi); 3338 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi); 3339 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3340 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3341 int __init f2fs_create_segment_manager_caches(void); 3342 void f2fs_destroy_segment_manager_caches(void); 3343 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3344 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3345 enum page_type type, enum temp_type temp); 3346 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi, 3347 unsigned int segno); 3348 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi, 3349 unsigned int segno); 3350 3351 /* 3352 * checkpoint.c 3353 */ 3354 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3355 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3356 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3357 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index); 3358 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3359 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3360 block_t blkaddr, int type); 3361 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3362 int type, bool sync); 3363 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3364 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3365 long nr_to_write, enum iostat_type io_type); 3366 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3367 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3368 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3369 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3370 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3371 unsigned int devidx, int type); 3372 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3373 unsigned int devidx, int type); 3374 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3375 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3376 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3377 void f2fs_add_orphan_inode(struct inode *inode); 3378 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3379 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3380 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3381 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3382 void f2fs_remove_dirty_inode(struct inode *inode); 3383 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3384 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type); 3385 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3386 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3387 int __init f2fs_create_checkpoint_caches(void); 3388 void f2fs_destroy_checkpoint_caches(void); 3389 3390 /* 3391 * data.c 3392 */ 3393 int __init f2fs_init_bioset(void); 3394 void f2fs_destroy_bioset(void); 3395 struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool noio); 3396 int f2fs_init_bio_entry_cache(void); 3397 void f2fs_destroy_bio_entry_cache(void); 3398 void f2fs_submit_bio(struct f2fs_sb_info *sbi, 3399 struct bio *bio, enum page_type type); 3400 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3401 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3402 struct inode *inode, struct page *page, 3403 nid_t ino, enum page_type type); 3404 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi, 3405 struct bio **bio, struct page *page); 3406 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3407 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3408 int f2fs_merge_page_bio(struct f2fs_io_info *fio); 3409 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3410 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3411 block_t blk_addr, struct bio *bio); 3412 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3413 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3414 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3415 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3416 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3417 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3418 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3419 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3420 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3421 int op_flags, bool for_write); 3422 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3423 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3424 bool for_write); 3425 struct page *f2fs_get_new_data_page(struct inode *inode, 3426 struct page *ipage, pgoff_t index, bool new_i_size); 3427 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3428 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3429 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3430 int create, int flag); 3431 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3432 u64 start, u64 len); 3433 int f2fs_encrypt_one_page(struct f2fs_io_info *fio); 3434 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3435 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3436 int f2fs_write_single_data_page(struct page *page, int *submitted, 3437 struct bio **bio, sector_t *last_block, 3438 struct writeback_control *wbc, 3439 enum iostat_type io_type, 3440 int compr_blocks); 3441 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3442 unsigned int length); 3443 int f2fs_release_page(struct page *page, gfp_t wait); 3444 #ifdef CONFIG_MIGRATION 3445 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3446 struct page *page, enum migrate_mode mode); 3447 #endif 3448 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3449 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3450 int f2fs_init_post_read_processing(void); 3451 void f2fs_destroy_post_read_processing(void); 3452 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi); 3453 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi); 3454 3455 /* 3456 * gc.c 3457 */ 3458 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3459 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3460 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3461 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, 3462 unsigned int segno); 3463 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3464 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count); 3465 int __init f2fs_create_garbage_collection_cache(void); 3466 void f2fs_destroy_garbage_collection_cache(void); 3467 3468 /* 3469 * recovery.c 3470 */ 3471 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3472 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3473 3474 /* 3475 * debug.c 3476 */ 3477 #ifdef CONFIG_F2FS_STAT_FS 3478 struct f2fs_stat_info { 3479 struct list_head stat_list; 3480 struct f2fs_sb_info *sbi; 3481 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3482 int main_area_segs, main_area_sections, main_area_zones; 3483 unsigned long long hit_largest, hit_cached, hit_rbtree; 3484 unsigned long long hit_total, total_ext; 3485 int ext_tree, zombie_tree, ext_node; 3486 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3487 int ndirty_data, ndirty_qdata; 3488 int inmem_pages; 3489 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3490 int nats, dirty_nats, sits, dirty_sits; 3491 int free_nids, avail_nids, alloc_nids; 3492 int total_count, utilization; 3493 int bg_gc, nr_wb_cp_data, nr_wb_data; 3494 int nr_rd_data, nr_rd_node, nr_rd_meta; 3495 int nr_dio_read, nr_dio_write; 3496 unsigned int io_skip_bggc, other_skip_bggc; 3497 int nr_flushing, nr_flushed, flush_list_empty; 3498 int nr_discarding, nr_discarded; 3499 int nr_discard_cmd; 3500 unsigned int undiscard_blks; 3501 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3502 int compr_inode; 3503 unsigned long long compr_blocks; 3504 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3505 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3506 unsigned int bimodal, avg_vblocks; 3507 int util_free, util_valid, util_invalid; 3508 int rsvd_segs, overp_segs; 3509 int dirty_count, node_pages, meta_pages; 3510 int prefree_count, call_count, cp_count, bg_cp_count; 3511 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3512 int bg_node_segs, bg_data_segs; 3513 int tot_blks, data_blks, node_blks; 3514 int bg_data_blks, bg_node_blks; 3515 unsigned long long skipped_atomic_files[2]; 3516 int curseg[NR_CURSEG_TYPE]; 3517 int cursec[NR_CURSEG_TYPE]; 3518 int curzone[NR_CURSEG_TYPE]; 3519 unsigned int dirty_seg[NR_CURSEG_TYPE]; 3520 unsigned int full_seg[NR_CURSEG_TYPE]; 3521 unsigned int valid_blks[NR_CURSEG_TYPE]; 3522 3523 unsigned int meta_count[META_MAX]; 3524 unsigned int segment_count[2]; 3525 unsigned int block_count[2]; 3526 unsigned int inplace_count; 3527 unsigned long long base_mem, cache_mem, page_mem; 3528 }; 3529 3530 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3531 { 3532 return (struct f2fs_stat_info *)sbi->stat_info; 3533 } 3534 3535 #define stat_inc_cp_count(si) ((si)->cp_count++) 3536 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3537 #define stat_inc_call_count(si) ((si)->call_count++) 3538 #define stat_inc_bggc_count(si) ((si)->bg_gc++) 3539 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3540 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3541 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3542 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3543 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3544 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3545 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3546 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3547 #define stat_inc_inline_xattr(inode) \ 3548 do { \ 3549 if (f2fs_has_inline_xattr(inode)) \ 3550 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3551 } while (0) 3552 #define stat_dec_inline_xattr(inode) \ 3553 do { \ 3554 if (f2fs_has_inline_xattr(inode)) \ 3555 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3556 } while (0) 3557 #define stat_inc_inline_inode(inode) \ 3558 do { \ 3559 if (f2fs_has_inline_data(inode)) \ 3560 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3561 } while (0) 3562 #define stat_dec_inline_inode(inode) \ 3563 do { \ 3564 if (f2fs_has_inline_data(inode)) \ 3565 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3566 } while (0) 3567 #define stat_inc_inline_dir(inode) \ 3568 do { \ 3569 if (f2fs_has_inline_dentry(inode)) \ 3570 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3571 } while (0) 3572 #define stat_dec_inline_dir(inode) \ 3573 do { \ 3574 if (f2fs_has_inline_dentry(inode)) \ 3575 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3576 } while (0) 3577 #define stat_inc_compr_inode(inode) \ 3578 do { \ 3579 if (f2fs_compressed_file(inode)) \ 3580 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \ 3581 } while (0) 3582 #define stat_dec_compr_inode(inode) \ 3583 do { \ 3584 if (f2fs_compressed_file(inode)) \ 3585 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \ 3586 } while (0) 3587 #define stat_add_compr_blocks(inode, blocks) \ 3588 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3589 #define stat_sub_compr_blocks(inode, blocks) \ 3590 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3591 #define stat_inc_meta_count(sbi, blkaddr) \ 3592 do { \ 3593 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3594 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3595 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3596 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3597 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3598 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3599 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3600 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3601 } while (0) 3602 #define stat_inc_seg_type(sbi, curseg) \ 3603 ((sbi)->segment_count[(curseg)->alloc_type]++) 3604 #define stat_inc_block_count(sbi, curseg) \ 3605 ((sbi)->block_count[(curseg)->alloc_type]++) 3606 #define stat_inc_inplace_blocks(sbi) \ 3607 (atomic_inc(&(sbi)->inplace_count)) 3608 #define stat_update_max_atomic_write(inode) \ 3609 do { \ 3610 int cur = F2FS_I_SB(inode)->atomic_files; \ 3611 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3612 if (cur > max) \ 3613 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3614 } while (0) 3615 #define stat_inc_volatile_write(inode) \ 3616 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3617 #define stat_dec_volatile_write(inode) \ 3618 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3619 #define stat_update_max_volatile_write(inode) \ 3620 do { \ 3621 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3622 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3623 if (cur > max) \ 3624 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3625 } while (0) 3626 #define stat_inc_seg_count(sbi, type, gc_type) \ 3627 do { \ 3628 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3629 si->tot_segs++; \ 3630 if ((type) == SUM_TYPE_DATA) { \ 3631 si->data_segs++; \ 3632 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3633 } else { \ 3634 si->node_segs++; \ 3635 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3636 } \ 3637 } while (0) 3638 3639 #define stat_inc_tot_blk_count(si, blks) \ 3640 ((si)->tot_blks += (blks)) 3641 3642 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3643 do { \ 3644 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3645 stat_inc_tot_blk_count(si, blks); \ 3646 si->data_blks += (blks); \ 3647 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3648 } while (0) 3649 3650 #define stat_inc_node_blk_count(sbi, blks, gc_type) \ 3651 do { \ 3652 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3653 stat_inc_tot_blk_count(si, blks); \ 3654 si->node_blks += (blks); \ 3655 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3656 } while (0) 3657 3658 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3659 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3660 void __init f2fs_create_root_stats(void); 3661 void f2fs_destroy_root_stats(void); 3662 void f2fs_update_sit_info(struct f2fs_sb_info *sbi); 3663 #else 3664 #define stat_inc_cp_count(si) do { } while (0) 3665 #define stat_inc_bg_cp_count(si) do { } while (0) 3666 #define stat_inc_call_count(si) do { } while (0) 3667 #define stat_inc_bggc_count(si) do { } while (0) 3668 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3669 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3670 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3671 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3672 #define stat_inc_total_hit(sbi) do { } while (0) 3673 #define stat_inc_rbtree_node_hit(sbi) do { } while (0) 3674 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3675 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3676 #define stat_inc_inline_xattr(inode) do { } while (0) 3677 #define stat_dec_inline_xattr(inode) do { } while (0) 3678 #define stat_inc_inline_inode(inode) do { } while (0) 3679 #define stat_dec_inline_inode(inode) do { } while (0) 3680 #define stat_inc_inline_dir(inode) do { } while (0) 3681 #define stat_dec_inline_dir(inode) do { } while (0) 3682 #define stat_inc_compr_inode(inode) do { } while (0) 3683 #define stat_dec_compr_inode(inode) do { } while (0) 3684 #define stat_add_compr_blocks(inode, blocks) do { } while (0) 3685 #define stat_sub_compr_blocks(inode, blocks) do { } while (0) 3686 #define stat_inc_atomic_write(inode) do { } while (0) 3687 #define stat_dec_atomic_write(inode) do { } while (0) 3688 #define stat_update_max_atomic_write(inode) do { } while (0) 3689 #define stat_inc_volatile_write(inode) do { } while (0) 3690 #define stat_dec_volatile_write(inode) do { } while (0) 3691 #define stat_update_max_volatile_write(inode) do { } while (0) 3692 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3693 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3694 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3695 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3696 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3697 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3698 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3699 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3700 3701 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3702 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3703 static inline void __init f2fs_create_root_stats(void) { } 3704 static inline void f2fs_destroy_root_stats(void) { } 3705 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {} 3706 #endif 3707 3708 extern const struct file_operations f2fs_dir_operations; 3709 extern const struct file_operations f2fs_file_operations; 3710 extern const struct inode_operations f2fs_file_inode_operations; 3711 extern const struct address_space_operations f2fs_dblock_aops; 3712 extern const struct address_space_operations f2fs_node_aops; 3713 extern const struct address_space_operations f2fs_meta_aops; 3714 extern const struct inode_operations f2fs_dir_inode_operations; 3715 extern const struct inode_operations f2fs_symlink_inode_operations; 3716 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3717 extern const struct inode_operations f2fs_special_inode_operations; 3718 extern struct kmem_cache *f2fs_inode_entry_slab; 3719 3720 /* 3721 * inline.c 3722 */ 3723 bool f2fs_may_inline_data(struct inode *inode); 3724 bool f2fs_may_inline_dentry(struct inode *inode); 3725 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3726 void f2fs_truncate_inline_inode(struct inode *inode, 3727 struct page *ipage, u64 from); 3728 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3729 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3730 int f2fs_convert_inline_inode(struct inode *inode); 3731 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry); 3732 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3733 int f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3734 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3735 const struct f2fs_filename *fname, 3736 struct page **res_page); 3737 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3738 struct page *ipage); 3739 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname, 3740 struct inode *inode, nid_t ino, umode_t mode); 3741 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3742 struct page *page, struct inode *dir, 3743 struct inode *inode); 3744 bool f2fs_empty_inline_dir(struct inode *dir); 3745 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3746 struct fscrypt_str *fstr); 3747 int f2fs_inline_data_fiemap(struct inode *inode, 3748 struct fiemap_extent_info *fieinfo, 3749 __u64 start, __u64 len); 3750 3751 /* 3752 * shrinker.c 3753 */ 3754 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3755 struct shrink_control *sc); 3756 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3757 struct shrink_control *sc); 3758 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3759 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3760 3761 /* 3762 * extent_cache.c 3763 */ 3764 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3765 struct rb_entry *cached_re, unsigned int ofs); 3766 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi, 3767 struct rb_root_cached *root, 3768 struct rb_node **parent, 3769 unsigned long long key, bool *left_most); 3770 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3771 struct rb_root_cached *root, 3772 struct rb_node **parent, 3773 unsigned int ofs, bool *leftmost); 3774 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3775 struct rb_entry *cached_re, unsigned int ofs, 3776 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3777 struct rb_node ***insert_p, struct rb_node **insert_parent, 3778 bool force, bool *leftmost); 3779 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3780 struct rb_root_cached *root, bool check_key); 3781 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3782 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage); 3783 void f2fs_drop_extent_tree(struct inode *inode); 3784 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3785 void f2fs_destroy_extent_tree(struct inode *inode); 3786 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3787 struct extent_info *ei); 3788 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3789 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3790 pgoff_t fofs, block_t blkaddr, unsigned int len); 3791 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3792 int __init f2fs_create_extent_cache(void); 3793 void f2fs_destroy_extent_cache(void); 3794 3795 /* 3796 * sysfs.c 3797 */ 3798 int __init f2fs_init_sysfs(void); 3799 void f2fs_exit_sysfs(void); 3800 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3801 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3802 3803 /* verity.c */ 3804 extern const struct fsverity_operations f2fs_verityops; 3805 3806 /* 3807 * crypto support 3808 */ 3809 static inline bool f2fs_encrypted_file(struct inode *inode) 3810 { 3811 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode); 3812 } 3813 3814 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3815 { 3816 #ifdef CONFIG_FS_ENCRYPTION 3817 file_set_encrypt(inode); 3818 f2fs_set_inode_flags(inode); 3819 #endif 3820 } 3821 3822 /* 3823 * Returns true if the reads of the inode's data need to undergo some 3824 * postprocessing step, like decryption or authenticity verification. 3825 */ 3826 static inline bool f2fs_post_read_required(struct inode *inode) 3827 { 3828 return f2fs_encrypted_file(inode) || fsverity_active(inode) || 3829 f2fs_compressed_file(inode); 3830 } 3831 3832 /* 3833 * compress.c 3834 */ 3835 #ifdef CONFIG_F2FS_FS_COMPRESSION 3836 bool f2fs_is_compressed_page(struct page *page); 3837 struct page *f2fs_compress_control_page(struct page *page); 3838 int f2fs_prepare_compress_overwrite(struct inode *inode, 3839 struct page **pagep, pgoff_t index, void **fsdata); 3840 bool f2fs_compress_write_end(struct inode *inode, void *fsdata, 3841 pgoff_t index, unsigned copied); 3842 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock); 3843 void f2fs_compress_write_end_io(struct bio *bio, struct page *page); 3844 bool f2fs_is_compress_backend_ready(struct inode *inode); 3845 int f2fs_init_compress_mempool(void); 3846 void f2fs_destroy_compress_mempool(void); 3847 void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity); 3848 bool f2fs_cluster_is_empty(struct compress_ctx *cc); 3849 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); 3850 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); 3851 int f2fs_write_multi_pages(struct compress_ctx *cc, 3852 int *submitted, 3853 struct writeback_control *wbc, 3854 enum iostat_type io_type); 3855 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index); 3856 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret, 3857 unsigned nr_pages, sector_t *last_block_in_bio, 3858 bool is_readahead, bool for_write); 3859 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc); 3860 void f2fs_free_dic(struct decompress_io_ctx *dic); 3861 void f2fs_decompress_end_io(struct page **rpages, 3862 unsigned int cluster_size, bool err, bool verity); 3863 int f2fs_init_compress_ctx(struct compress_ctx *cc); 3864 void f2fs_destroy_compress_ctx(struct compress_ctx *cc); 3865 void f2fs_init_compress_info(struct f2fs_sb_info *sbi); 3866 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi); 3867 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi); 3868 int __init f2fs_init_compress_cache(void); 3869 void f2fs_destroy_compress_cache(void); 3870 #else 3871 static inline bool f2fs_is_compressed_page(struct page *page) { return false; } 3872 static inline bool f2fs_is_compress_backend_ready(struct inode *inode) 3873 { 3874 if (!f2fs_compressed_file(inode)) 3875 return true; 3876 /* not support compression */ 3877 return false; 3878 } 3879 static inline struct page *f2fs_compress_control_page(struct page *page) 3880 { 3881 WARN_ON_ONCE(1); 3882 return ERR_PTR(-EINVAL); 3883 } 3884 static inline int f2fs_init_compress_mempool(void) { return 0; } 3885 static inline void f2fs_destroy_compress_mempool(void) { } 3886 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; } 3887 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { } 3888 static inline int __init f2fs_init_compress_cache(void) { return 0; } 3889 static inline void f2fs_destroy_compress_cache(void) { } 3890 #endif 3891 3892 static inline void set_compress_context(struct inode *inode) 3893 { 3894 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3895 3896 F2FS_I(inode)->i_compress_algorithm = 3897 F2FS_OPTION(sbi).compress_algorithm; 3898 F2FS_I(inode)->i_log_cluster_size = 3899 F2FS_OPTION(sbi).compress_log_size; 3900 F2FS_I(inode)->i_compress_flag = 3901 F2FS_OPTION(sbi).compress_chksum ? 3902 1 << COMPRESS_CHKSUM : 0; 3903 F2FS_I(inode)->i_cluster_size = 3904 1 << F2FS_I(inode)->i_log_cluster_size; 3905 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL; 3906 set_inode_flag(inode, FI_COMPRESSED_FILE); 3907 stat_inc_compr_inode(inode); 3908 f2fs_mark_inode_dirty_sync(inode, true); 3909 } 3910 3911 static inline bool f2fs_disable_compressed_file(struct inode *inode) 3912 { 3913 struct f2fs_inode_info *fi = F2FS_I(inode); 3914 3915 if (!f2fs_compressed_file(inode)) 3916 return true; 3917 if (S_ISREG(inode->i_mode) && 3918 (get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks))) 3919 return false; 3920 3921 fi->i_flags &= ~F2FS_COMPR_FL; 3922 stat_dec_compr_inode(inode); 3923 clear_inode_flag(inode, FI_COMPRESSED_FILE); 3924 f2fs_mark_inode_dirty_sync(inode, true); 3925 return true; 3926 } 3927 3928 #define F2FS_FEATURE_FUNCS(name, flagname) \ 3929 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 3930 { \ 3931 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 3932 } 3933 3934 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 3935 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 3936 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 3937 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 3938 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 3939 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 3940 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 3941 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 3942 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 3943 F2FS_FEATURE_FUNCS(verity, VERITY); 3944 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 3945 F2FS_FEATURE_FUNCS(casefold, CASEFOLD); 3946 F2FS_FEATURE_FUNCS(compression, COMPRESSION); 3947 3948 #ifdef CONFIG_BLK_DEV_ZONED 3949 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi, 3950 block_t blkaddr) 3951 { 3952 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 3953 3954 return test_bit(zno, FDEV(devi).blkz_seq); 3955 } 3956 #endif 3957 3958 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 3959 { 3960 return f2fs_sb_has_blkzoned(sbi); 3961 } 3962 3963 static inline bool f2fs_bdev_support_discard(struct block_device *bdev) 3964 { 3965 return blk_queue_discard(bdev_get_queue(bdev)) || 3966 bdev_is_zoned(bdev); 3967 } 3968 3969 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 3970 { 3971 int i; 3972 3973 if (!f2fs_is_multi_device(sbi)) 3974 return f2fs_bdev_support_discard(sbi->sb->s_bdev); 3975 3976 for (i = 0; i < sbi->s_ndevs; i++) 3977 if (f2fs_bdev_support_discard(FDEV(i).bdev)) 3978 return true; 3979 return false; 3980 } 3981 3982 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 3983 { 3984 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 3985 f2fs_hw_should_discard(sbi); 3986 } 3987 3988 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi) 3989 { 3990 int i; 3991 3992 if (!f2fs_is_multi_device(sbi)) 3993 return bdev_read_only(sbi->sb->s_bdev); 3994 3995 for (i = 0; i < sbi->s_ndevs; i++) 3996 if (bdev_read_only(FDEV(i).bdev)) 3997 return true; 3998 return false; 3999 } 4000 4001 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi) 4002 { 4003 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS; 4004 } 4005 4006 static inline bool f2fs_may_compress(struct inode *inode) 4007 { 4008 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) || 4009 f2fs_is_atomic_file(inode) || 4010 f2fs_is_volatile_file(inode)) 4011 return false; 4012 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode); 4013 } 4014 4015 static inline void f2fs_i_compr_blocks_update(struct inode *inode, 4016 u64 blocks, bool add) 4017 { 4018 int diff = F2FS_I(inode)->i_cluster_size - blocks; 4019 struct f2fs_inode_info *fi = F2FS_I(inode); 4020 4021 /* don't update i_compr_blocks if saved blocks were released */ 4022 if (!add && !atomic_read(&fi->i_compr_blocks)) 4023 return; 4024 4025 if (add) { 4026 atomic_add(diff, &fi->i_compr_blocks); 4027 stat_add_compr_blocks(inode, diff); 4028 } else { 4029 atomic_sub(diff, &fi->i_compr_blocks); 4030 stat_sub_compr_blocks(inode, diff); 4031 } 4032 f2fs_mark_inode_dirty_sync(inode, true); 4033 } 4034 4035 static inline int block_unaligned_IO(struct inode *inode, 4036 struct kiocb *iocb, struct iov_iter *iter) 4037 { 4038 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 4039 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 4040 loff_t offset = iocb->ki_pos; 4041 unsigned long align = offset | iov_iter_alignment(iter); 4042 4043 return align & blocksize_mask; 4044 } 4045 4046 static inline int allow_outplace_dio(struct inode *inode, 4047 struct kiocb *iocb, struct iov_iter *iter) 4048 { 4049 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4050 int rw = iov_iter_rw(iter); 4051 4052 return (f2fs_lfs_mode(sbi) && (rw == WRITE) && 4053 !block_unaligned_IO(inode, iocb, iter)); 4054 } 4055 4056 static inline bool f2fs_force_buffered_io(struct inode *inode, 4057 struct kiocb *iocb, struct iov_iter *iter) 4058 { 4059 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4060 int rw = iov_iter_rw(iter); 4061 4062 if (f2fs_post_read_required(inode)) 4063 return true; 4064 if (f2fs_is_multi_device(sbi)) 4065 return true; 4066 /* 4067 * for blkzoned device, fallback direct IO to buffered IO, so 4068 * all IOs can be serialized by log-structured write. 4069 */ 4070 if (f2fs_sb_has_blkzoned(sbi)) 4071 return true; 4072 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) { 4073 if (block_unaligned_IO(inode, iocb, iter)) 4074 return true; 4075 if (F2FS_IO_ALIGNED(sbi)) 4076 return true; 4077 } 4078 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) && 4079 !IS_SWAPFILE(inode)) 4080 return true; 4081 4082 return false; 4083 } 4084 4085 #ifdef CONFIG_F2FS_FAULT_INJECTION 4086 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 4087 unsigned int type); 4088 #else 4089 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 4090 #endif 4091 4092 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 4093 { 4094 #ifdef CONFIG_QUOTA 4095 if (f2fs_sb_has_quota_ino(sbi)) 4096 return true; 4097 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 4098 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 4099 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 4100 return true; 4101 #endif 4102 return false; 4103 } 4104 4105 #define EFSBADCRC EBADMSG /* Bad CRC detected */ 4106 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ 4107 4108 #endif /* _LINUX_F2FS_H */ 4109