1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * fs/f2fs/f2fs.h 4 * 5 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 6 * http://www.samsung.com/ 7 */ 8 #ifndef _LINUX_F2FS_H 9 #define _LINUX_F2FS_H 10 11 #include <linux/uio.h> 12 #include <linux/types.h> 13 #include <linux/page-flags.h> 14 #include <linux/buffer_head.h> 15 #include <linux/slab.h> 16 #include <linux/crc32.h> 17 #include <linux/magic.h> 18 #include <linux/kobject.h> 19 #include <linux/sched.h> 20 #include <linux/cred.h> 21 #include <linux/vmalloc.h> 22 #include <linux/bio.h> 23 #include <linux/blkdev.h> 24 #include <linux/quotaops.h> 25 #include <linux/part_stat.h> 26 #include <crypto/hash.h> 27 28 #include <linux/fscrypt.h> 29 #include <linux/fsverity.h> 30 31 #ifdef CONFIG_F2FS_CHECK_FS 32 #define f2fs_bug_on(sbi, condition) BUG_ON(condition) 33 #else 34 #define f2fs_bug_on(sbi, condition) \ 35 do { \ 36 if (WARN_ON(condition)) \ 37 set_sbi_flag(sbi, SBI_NEED_FSCK); \ 38 } while (0) 39 #endif 40 41 enum { 42 FAULT_KMALLOC, 43 FAULT_KVMALLOC, 44 FAULT_PAGE_ALLOC, 45 FAULT_PAGE_GET, 46 FAULT_ALLOC_NID, 47 FAULT_ORPHAN, 48 FAULT_BLOCK, 49 FAULT_DIR_DEPTH, 50 FAULT_EVICT_INODE, 51 FAULT_TRUNCATE, 52 FAULT_READ_IO, 53 FAULT_CHECKPOINT, 54 FAULT_DISCARD, 55 FAULT_WRITE_IO, 56 FAULT_MAX, 57 }; 58 59 #ifdef CONFIG_F2FS_FAULT_INJECTION 60 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1) 61 62 struct f2fs_fault_info { 63 atomic_t inject_ops; 64 unsigned int inject_rate; 65 unsigned int inject_type; 66 }; 67 68 extern const char *f2fs_fault_name[FAULT_MAX]; 69 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) 70 #endif 71 72 /* 73 * For mount options 74 */ 75 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 76 #define F2FS_MOUNT_DISCARD 0x00000004 77 #define F2FS_MOUNT_NOHEAP 0x00000008 78 #define F2FS_MOUNT_XATTR_USER 0x00000010 79 #define F2FS_MOUNT_POSIX_ACL 0x00000020 80 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 81 #define F2FS_MOUNT_INLINE_XATTR 0x00000080 82 #define F2FS_MOUNT_INLINE_DATA 0x00000100 83 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 84 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 85 #define F2FS_MOUNT_NOBARRIER 0x00000800 86 #define F2FS_MOUNT_FASTBOOT 0x00001000 87 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 88 #define F2FS_MOUNT_DATA_FLUSH 0x00008000 89 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 90 #define F2FS_MOUNT_USRQUOTA 0x00080000 91 #define F2FS_MOUNT_GRPQUOTA 0x00100000 92 #define F2FS_MOUNT_PRJQUOTA 0x00200000 93 #define F2FS_MOUNT_QUOTA 0x00400000 94 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000 95 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000 96 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000 97 #define F2FS_MOUNT_NORECOVERY 0x04000000 98 #define F2FS_MOUNT_ATGC 0x08000000 99 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000 100 #define F2FS_MOUNT_GC_MERGE 0x20000000 101 102 #define F2FS_OPTION(sbi) ((sbi)->mount_opt) 103 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) 104 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option) 105 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option) 106 107 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 108 typecheck(unsigned long long, b) && \ 109 ((long long)((a) - (b)) > 0)) 110 111 typedef u32 block_t; /* 112 * should not change u32, since it is the on-disk block 113 * address format, __le32. 114 */ 115 typedef u32 nid_t; 116 117 #define COMPRESS_EXT_NUM 16 118 119 struct f2fs_mount_info { 120 unsigned int opt; 121 int write_io_size_bits; /* Write IO size bits */ 122 block_t root_reserved_blocks; /* root reserved blocks */ 123 kuid_t s_resuid; /* reserved blocks for uid */ 124 kgid_t s_resgid; /* reserved blocks for gid */ 125 int active_logs; /* # of active logs */ 126 int inline_xattr_size; /* inline xattr size */ 127 #ifdef CONFIG_F2FS_FAULT_INJECTION 128 struct f2fs_fault_info fault_info; /* For fault injection */ 129 #endif 130 #ifdef CONFIG_QUOTA 131 /* Names of quota files with journalled quota */ 132 char *s_qf_names[MAXQUOTAS]; 133 int s_jquota_fmt; /* Format of quota to use */ 134 #endif 135 /* For which write hints are passed down to block layer */ 136 int whint_mode; 137 int alloc_mode; /* segment allocation policy */ 138 int fsync_mode; /* fsync policy */ 139 int fs_mode; /* fs mode: LFS or ADAPTIVE */ 140 int bggc_mode; /* bggc mode: off, on or sync */ 141 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */ 142 block_t unusable_cap_perc; /* percentage for cap */ 143 block_t unusable_cap; /* Amount of space allowed to be 144 * unusable when disabling checkpoint 145 */ 146 147 /* For compression */ 148 unsigned char compress_algorithm; /* algorithm type */ 149 unsigned char compress_log_size; /* cluster log size */ 150 unsigned char compress_level; /* compress level */ 151 bool compress_chksum; /* compressed data chksum */ 152 unsigned char compress_ext_cnt; /* extension count */ 153 int compress_mode; /* compression mode */ 154 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */ 155 }; 156 157 #define F2FS_FEATURE_ENCRYPT 0x0001 158 #define F2FS_FEATURE_BLKZONED 0x0002 159 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004 160 #define F2FS_FEATURE_EXTRA_ATTR 0x0008 161 #define F2FS_FEATURE_PRJQUOTA 0x0010 162 #define F2FS_FEATURE_INODE_CHKSUM 0x0020 163 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 164 #define F2FS_FEATURE_QUOTA_INO 0x0080 165 #define F2FS_FEATURE_INODE_CRTIME 0x0100 166 #define F2FS_FEATURE_LOST_FOUND 0x0200 167 #define F2FS_FEATURE_VERITY 0x0400 168 #define F2FS_FEATURE_SB_CHKSUM 0x0800 169 #define F2FS_FEATURE_CASEFOLD 0x1000 170 #define F2FS_FEATURE_COMPRESSION 0x2000 171 #define F2FS_FEATURE_RO 0x4000 172 173 #define __F2FS_HAS_FEATURE(raw_super, mask) \ 174 ((raw_super->feature & cpu_to_le32(mask)) != 0) 175 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask) 176 #define F2FS_SET_FEATURE(sbi, mask) \ 177 (sbi->raw_super->feature |= cpu_to_le32(mask)) 178 #define F2FS_CLEAR_FEATURE(sbi, mask) \ 179 (sbi->raw_super->feature &= ~cpu_to_le32(mask)) 180 181 /* 182 * Default values for user and/or group using reserved blocks 183 */ 184 #define F2FS_DEF_RESUID 0 185 #define F2FS_DEF_RESGID 0 186 187 /* 188 * For checkpoint manager 189 */ 190 enum { 191 NAT_BITMAP, 192 SIT_BITMAP 193 }; 194 195 #define CP_UMOUNT 0x00000001 196 #define CP_FASTBOOT 0x00000002 197 #define CP_SYNC 0x00000004 198 #define CP_RECOVERY 0x00000008 199 #define CP_DISCARD 0x00000010 200 #define CP_TRIMMED 0x00000020 201 #define CP_PAUSE 0x00000040 202 #define CP_RESIZE 0x00000080 203 204 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) 205 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */ 206 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */ 207 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */ 208 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */ 209 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */ 210 #define DEF_CP_INTERVAL 60 /* 60 secs */ 211 #define DEF_IDLE_INTERVAL 5 /* 5 secs */ 212 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */ 213 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */ 214 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ 215 216 struct cp_control { 217 int reason; 218 __u64 trim_start; 219 __u64 trim_end; 220 __u64 trim_minlen; 221 }; 222 223 /* 224 * indicate meta/data type 225 */ 226 enum { 227 META_CP, 228 META_NAT, 229 META_SIT, 230 META_SSA, 231 META_MAX, 232 META_POR, 233 DATA_GENERIC, /* check range only */ 234 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */ 235 DATA_GENERIC_ENHANCE_READ, /* 236 * strong check on range and segment 237 * bitmap but no warning due to race 238 * condition of read on truncated area 239 * by extent_cache 240 */ 241 META_GENERIC, 242 }; 243 244 /* for the list of ino */ 245 enum { 246 ORPHAN_INO, /* for orphan ino list */ 247 APPEND_INO, /* for append ino list */ 248 UPDATE_INO, /* for update ino list */ 249 TRANS_DIR_INO, /* for trasactions dir ino list */ 250 FLUSH_INO, /* for multiple device flushing */ 251 MAX_INO_ENTRY, /* max. list */ 252 }; 253 254 struct ino_entry { 255 struct list_head list; /* list head */ 256 nid_t ino; /* inode number */ 257 unsigned int dirty_device; /* dirty device bitmap */ 258 }; 259 260 /* for the list of inodes to be GCed */ 261 struct inode_entry { 262 struct list_head list; /* list head */ 263 struct inode *inode; /* vfs inode pointer */ 264 }; 265 266 struct fsync_node_entry { 267 struct list_head list; /* list head */ 268 struct page *page; /* warm node page pointer */ 269 unsigned int seq_id; /* sequence id */ 270 }; 271 272 struct ckpt_req { 273 struct completion wait; /* completion for checkpoint done */ 274 struct llist_node llnode; /* llist_node to be linked in wait queue */ 275 int ret; /* return code of checkpoint */ 276 ktime_t queue_time; /* request queued time */ 277 }; 278 279 struct ckpt_req_control { 280 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */ 281 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */ 282 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */ 283 atomic_t issued_ckpt; /* # of actually issued ckpts */ 284 atomic_t total_ckpt; /* # of total ckpts */ 285 atomic_t queued_ckpt; /* # of queued ckpts */ 286 struct llist_head issue_list; /* list for command issue */ 287 spinlock_t stat_lock; /* lock for below checkpoint time stats */ 288 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */ 289 unsigned int peak_time; /* peak wait time in msec until now */ 290 }; 291 292 /* for the bitmap indicate blocks to be discarded */ 293 struct discard_entry { 294 struct list_head list; /* list head */ 295 block_t start_blkaddr; /* start blockaddr of current segment */ 296 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ 297 }; 298 299 /* default discard granularity of inner discard thread, unit: block count */ 300 #define DEFAULT_DISCARD_GRANULARITY 16 301 302 /* max discard pend list number */ 303 #define MAX_PLIST_NUM 512 304 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ 305 (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) 306 307 enum { 308 D_PREP, /* initial */ 309 D_PARTIAL, /* partially submitted */ 310 D_SUBMIT, /* all submitted */ 311 D_DONE, /* finished */ 312 }; 313 314 struct discard_info { 315 block_t lstart; /* logical start address */ 316 block_t len; /* length */ 317 block_t start; /* actual start address in dev */ 318 }; 319 320 struct discard_cmd { 321 struct rb_node rb_node; /* rb node located in rb-tree */ 322 union { 323 struct { 324 block_t lstart; /* logical start address */ 325 block_t len; /* length */ 326 block_t start; /* actual start address in dev */ 327 }; 328 struct discard_info di; /* discard info */ 329 330 }; 331 struct list_head list; /* command list */ 332 struct completion wait; /* compleation */ 333 struct block_device *bdev; /* bdev */ 334 unsigned short ref; /* reference count */ 335 unsigned char state; /* state */ 336 unsigned char queued; /* queued discard */ 337 int error; /* bio error */ 338 spinlock_t lock; /* for state/bio_ref updating */ 339 unsigned short bio_ref; /* bio reference count */ 340 }; 341 342 enum { 343 DPOLICY_BG, 344 DPOLICY_FORCE, 345 DPOLICY_FSTRIM, 346 DPOLICY_UMOUNT, 347 MAX_DPOLICY, 348 }; 349 350 struct discard_policy { 351 int type; /* type of discard */ 352 unsigned int min_interval; /* used for candidates exist */ 353 unsigned int mid_interval; /* used for device busy */ 354 unsigned int max_interval; /* used for candidates not exist */ 355 unsigned int max_requests; /* # of discards issued per round */ 356 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ 357 bool io_aware; /* issue discard in idle time */ 358 bool sync; /* submit discard with REQ_SYNC flag */ 359 bool ordered; /* issue discard by lba order */ 360 bool timeout; /* discard timeout for put_super */ 361 unsigned int granularity; /* discard granularity */ 362 }; 363 364 struct discard_cmd_control { 365 struct task_struct *f2fs_issue_discard; /* discard thread */ 366 struct list_head entry_list; /* 4KB discard entry list */ 367 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ 368 struct list_head wait_list; /* store on-flushing entries */ 369 struct list_head fstrim_list; /* in-flight discard from fstrim */ 370 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ 371 unsigned int discard_wake; /* to wake up discard thread */ 372 struct mutex cmd_lock; 373 unsigned int nr_discards; /* # of discards in the list */ 374 unsigned int max_discards; /* max. discards to be issued */ 375 unsigned int discard_granularity; /* discard granularity */ 376 unsigned int undiscard_blks; /* # of undiscard blocks */ 377 unsigned int next_pos; /* next discard position */ 378 atomic_t issued_discard; /* # of issued discard */ 379 atomic_t queued_discard; /* # of queued discard */ 380 atomic_t discard_cmd_cnt; /* # of cached cmd count */ 381 struct rb_root_cached root; /* root of discard rb-tree */ 382 bool rbtree_check; /* config for consistence check */ 383 }; 384 385 /* for the list of fsync inodes, used only during recovery */ 386 struct fsync_inode_entry { 387 struct list_head list; /* list head */ 388 struct inode *inode; /* vfs inode pointer */ 389 block_t blkaddr; /* block address locating the last fsync */ 390 block_t last_dentry; /* block address locating the last dentry */ 391 }; 392 393 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) 394 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) 395 396 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) 397 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) 398 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) 399 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) 400 401 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) 402 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) 403 404 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) 405 { 406 int before = nats_in_cursum(journal); 407 408 journal->n_nats = cpu_to_le16(before + i); 409 return before; 410 } 411 412 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) 413 { 414 int before = sits_in_cursum(journal); 415 416 journal->n_sits = cpu_to_le16(before + i); 417 return before; 418 } 419 420 static inline bool __has_cursum_space(struct f2fs_journal *journal, 421 int size, int type) 422 { 423 if (type == NAT_JOURNAL) 424 return size <= MAX_NAT_JENTRIES(journal); 425 return size <= MAX_SIT_JENTRIES(journal); 426 } 427 428 /* for inline stuff */ 429 #define DEF_INLINE_RESERVED_SIZE 1 430 static inline int get_extra_isize(struct inode *inode); 431 static inline int get_inline_xattr_addrs(struct inode *inode); 432 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 433 (CUR_ADDRS_PER_INODE(inode) - \ 434 get_inline_xattr_addrs(inode) - \ 435 DEF_INLINE_RESERVED_SIZE)) 436 437 /* for inline dir */ 438 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 439 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 440 BITS_PER_BYTE + 1)) 441 #define INLINE_DENTRY_BITMAP_SIZE(inode) \ 442 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE) 443 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 444 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 445 NR_INLINE_DENTRY(inode) + \ 446 INLINE_DENTRY_BITMAP_SIZE(inode))) 447 448 /* 449 * For INODE and NODE manager 450 */ 451 /* for directory operations */ 452 453 struct f2fs_filename { 454 /* 455 * The filename the user specified. This is NULL for some 456 * filesystem-internal operations, e.g. converting an inline directory 457 * to a non-inline one, or roll-forward recovering an encrypted dentry. 458 */ 459 const struct qstr *usr_fname; 460 461 /* 462 * The on-disk filename. For encrypted directories, this is encrypted. 463 * This may be NULL for lookups in an encrypted dir without the key. 464 */ 465 struct fscrypt_str disk_name; 466 467 /* The dirhash of this filename */ 468 f2fs_hash_t hash; 469 470 #ifdef CONFIG_FS_ENCRYPTION 471 /* 472 * For lookups in encrypted directories: either the buffer backing 473 * disk_name, or a buffer that holds the decoded no-key name. 474 */ 475 struct fscrypt_str crypto_buf; 476 #endif 477 #ifdef CONFIG_UNICODE 478 /* 479 * For casefolded directories: the casefolded name, but it's left NULL 480 * if the original name is not valid Unicode, if the directory is both 481 * casefolded and encrypted and its encryption key is unavailable, or if 482 * the filesystem is doing an internal operation where usr_fname is also 483 * NULL. In all these cases we fall back to treating the name as an 484 * opaque byte sequence. 485 */ 486 struct fscrypt_str cf_name; 487 #endif 488 }; 489 490 struct f2fs_dentry_ptr { 491 struct inode *inode; 492 void *bitmap; 493 struct f2fs_dir_entry *dentry; 494 __u8 (*filename)[F2FS_SLOT_LEN]; 495 int max; 496 int nr_bitmap; 497 }; 498 499 static inline void make_dentry_ptr_block(struct inode *inode, 500 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 501 { 502 d->inode = inode; 503 d->max = NR_DENTRY_IN_BLOCK; 504 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 505 d->bitmap = t->dentry_bitmap; 506 d->dentry = t->dentry; 507 d->filename = t->filename; 508 } 509 510 static inline void make_dentry_ptr_inline(struct inode *inode, 511 struct f2fs_dentry_ptr *d, void *t) 512 { 513 int entry_cnt = NR_INLINE_DENTRY(inode); 514 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 515 int reserved_size = INLINE_RESERVED_SIZE(inode); 516 517 d->inode = inode; 518 d->max = entry_cnt; 519 d->nr_bitmap = bitmap_size; 520 d->bitmap = t; 521 d->dentry = t + bitmap_size + reserved_size; 522 d->filename = t + bitmap_size + reserved_size + 523 SIZE_OF_DIR_ENTRY * entry_cnt; 524 } 525 526 /* 527 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 528 * as its node offset to distinguish from index node blocks. 529 * But some bits are used to mark the node block. 530 */ 531 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 532 >> OFFSET_BIT_SHIFT) 533 enum { 534 ALLOC_NODE, /* allocate a new node page if needed */ 535 LOOKUP_NODE, /* look up a node without readahead */ 536 LOOKUP_NODE_RA, /* 537 * look up a node with readahead called 538 * by get_data_block. 539 */ 540 }; 541 542 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 543 544 /* congestion wait timeout value, default: 20ms */ 545 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20)) 546 547 /* maximum retry quota flush count */ 548 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 549 550 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 551 552 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 553 554 /* for in-memory extent cache entry */ 555 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 556 557 /* number of extent info in extent cache we try to shrink */ 558 #define EXTENT_CACHE_SHRINK_NUMBER 128 559 560 struct rb_entry { 561 struct rb_node rb_node; /* rb node located in rb-tree */ 562 union { 563 struct { 564 unsigned int ofs; /* start offset of the entry */ 565 unsigned int len; /* length of the entry */ 566 }; 567 unsigned long long key; /* 64-bits key */ 568 } __packed; 569 }; 570 571 struct extent_info { 572 unsigned int fofs; /* start offset in a file */ 573 unsigned int len; /* length of the extent */ 574 u32 blk; /* start block address of the extent */ 575 }; 576 577 struct extent_node { 578 struct rb_node rb_node; /* rb node located in rb-tree */ 579 struct extent_info ei; /* extent info */ 580 struct list_head list; /* node in global extent list of sbi */ 581 struct extent_tree *et; /* extent tree pointer */ 582 }; 583 584 struct extent_tree { 585 nid_t ino; /* inode number */ 586 struct rb_root_cached root; /* root of extent info rb-tree */ 587 struct extent_node *cached_en; /* recently accessed extent node */ 588 struct extent_info largest; /* largested extent info */ 589 struct list_head list; /* to be used by sbi->zombie_list */ 590 rwlock_t lock; /* protect extent info rb-tree */ 591 atomic_t node_cnt; /* # of extent node in rb-tree*/ 592 bool largest_updated; /* largest extent updated */ 593 }; 594 595 /* 596 * This structure is taken from ext4_map_blocks. 597 * 598 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 599 */ 600 #define F2FS_MAP_NEW (1 << BH_New) 601 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 602 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 603 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 604 F2FS_MAP_UNWRITTEN) 605 606 struct f2fs_map_blocks { 607 block_t m_pblk; 608 block_t m_lblk; 609 unsigned int m_len; 610 unsigned int m_flags; 611 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 612 pgoff_t *m_next_extent; /* point to next possible extent */ 613 int m_seg_type; 614 bool m_may_create; /* indicate it is from write path */ 615 }; 616 617 /* for flag in get_data_block */ 618 enum { 619 F2FS_GET_BLOCK_DEFAULT, 620 F2FS_GET_BLOCK_FIEMAP, 621 F2FS_GET_BLOCK_BMAP, 622 F2FS_GET_BLOCK_DIO, 623 F2FS_GET_BLOCK_PRE_DIO, 624 F2FS_GET_BLOCK_PRE_AIO, 625 F2FS_GET_BLOCK_PRECACHE, 626 }; 627 628 /* 629 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 630 */ 631 #define FADVISE_COLD_BIT 0x01 632 #define FADVISE_LOST_PINO_BIT 0x02 633 #define FADVISE_ENCRYPT_BIT 0x04 634 #define FADVISE_ENC_NAME_BIT 0x08 635 #define FADVISE_KEEP_SIZE_BIT 0x10 636 #define FADVISE_HOT_BIT 0x20 637 #define FADVISE_VERITY_BIT 0x40 638 639 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 640 641 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 642 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 643 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 644 645 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 646 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 647 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 648 649 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 650 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 651 652 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 653 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 654 655 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 656 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 657 658 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 659 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 660 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 661 662 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT) 663 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT) 664 665 #define DEF_DIR_LEVEL 0 666 667 enum { 668 GC_FAILURE_PIN, 669 GC_FAILURE_ATOMIC, 670 MAX_GC_FAILURE 671 }; 672 673 /* used for f2fs_inode_info->flags */ 674 enum { 675 FI_NEW_INODE, /* indicate newly allocated inode */ 676 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 677 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 678 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 679 FI_INC_LINK, /* need to increment i_nlink */ 680 FI_ACL_MODE, /* indicate acl mode */ 681 FI_NO_ALLOC, /* should not allocate any blocks */ 682 FI_FREE_NID, /* free allocated nide */ 683 FI_NO_EXTENT, /* not to use the extent cache */ 684 FI_INLINE_XATTR, /* used for inline xattr */ 685 FI_INLINE_DATA, /* used for inline data*/ 686 FI_INLINE_DENTRY, /* used for inline dentry */ 687 FI_APPEND_WRITE, /* inode has appended data */ 688 FI_UPDATE_WRITE, /* inode has in-place-update data */ 689 FI_NEED_IPU, /* used for ipu per file */ 690 FI_ATOMIC_FILE, /* indicate atomic file */ 691 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 692 FI_VOLATILE_FILE, /* indicate volatile file */ 693 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 694 FI_DROP_CACHE, /* drop dirty page cache */ 695 FI_DATA_EXIST, /* indicate data exists */ 696 FI_INLINE_DOTS, /* indicate inline dot dentries */ 697 FI_DO_DEFRAG, /* indicate defragment is running */ 698 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 699 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 700 FI_HOT_DATA, /* indicate file is hot */ 701 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 702 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 703 FI_PIN_FILE, /* indicate file should not be gced */ 704 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 705 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */ 706 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */ 707 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */ 708 FI_MMAP_FILE, /* indicate file was mmapped */ 709 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */ 710 FI_COMPRESS_RELEASED, /* compressed blocks were released */ 711 FI_MAX, /* max flag, never be used */ 712 }; 713 714 struct f2fs_inode_info { 715 struct inode vfs_inode; /* serve a vfs inode */ 716 unsigned long i_flags; /* keep an inode flags for ioctl */ 717 unsigned char i_advise; /* use to give file attribute hints */ 718 unsigned char i_dir_level; /* use for dentry level for large dir */ 719 unsigned int i_current_depth; /* only for directory depth */ 720 /* for gc failure statistic */ 721 unsigned int i_gc_failures[MAX_GC_FAILURE]; 722 unsigned int i_pino; /* parent inode number */ 723 umode_t i_acl_mode; /* keep file acl mode temporarily */ 724 725 /* Use below internally in f2fs*/ 726 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */ 727 struct rw_semaphore i_sem; /* protect fi info */ 728 atomic_t dirty_pages; /* # of dirty pages */ 729 f2fs_hash_t chash; /* hash value of given file name */ 730 unsigned int clevel; /* maximum level of given file name */ 731 struct task_struct *task; /* lookup and create consistency */ 732 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 733 nid_t i_xattr_nid; /* node id that contains xattrs */ 734 loff_t last_disk_size; /* lastly written file size */ 735 spinlock_t i_size_lock; /* protect last_disk_size */ 736 737 #ifdef CONFIG_QUOTA 738 struct dquot *i_dquot[MAXQUOTAS]; 739 740 /* quota space reservation, managed internally by quota code */ 741 qsize_t i_reserved_quota; 742 #endif 743 struct list_head dirty_list; /* dirty list for dirs and files */ 744 struct list_head gdirty_list; /* linked in global dirty list */ 745 struct list_head inmem_ilist; /* list for inmem inodes */ 746 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 747 struct task_struct *inmem_task; /* store inmemory task */ 748 struct mutex inmem_lock; /* lock for inmemory pages */ 749 struct extent_tree *extent_tree; /* cached extent_tree entry */ 750 751 /* avoid racing between foreground op and gc */ 752 struct rw_semaphore i_gc_rwsem[2]; 753 struct rw_semaphore i_mmap_sem; 754 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 755 756 int i_extra_isize; /* size of extra space located in i_addr */ 757 kprojid_t i_projid; /* id for project quota */ 758 int i_inline_xattr_size; /* inline xattr size */ 759 struct timespec64 i_crtime; /* inode creation time */ 760 struct timespec64 i_disk_time[4];/* inode disk times */ 761 762 /* for file compress */ 763 atomic_t i_compr_blocks; /* # of compressed blocks */ 764 unsigned char i_compress_algorithm; /* algorithm type */ 765 unsigned char i_log_cluster_size; /* log of cluster size */ 766 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */ 767 unsigned short i_compress_flag; /* compress flag */ 768 unsigned int i_cluster_size; /* cluster size */ 769 }; 770 771 static inline void get_extent_info(struct extent_info *ext, 772 struct f2fs_extent *i_ext) 773 { 774 ext->fofs = le32_to_cpu(i_ext->fofs); 775 ext->blk = le32_to_cpu(i_ext->blk); 776 ext->len = le32_to_cpu(i_ext->len); 777 } 778 779 static inline void set_raw_extent(struct extent_info *ext, 780 struct f2fs_extent *i_ext) 781 { 782 i_ext->fofs = cpu_to_le32(ext->fofs); 783 i_ext->blk = cpu_to_le32(ext->blk); 784 i_ext->len = cpu_to_le32(ext->len); 785 } 786 787 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 788 u32 blk, unsigned int len) 789 { 790 ei->fofs = fofs; 791 ei->blk = blk; 792 ei->len = len; 793 } 794 795 static inline bool __is_discard_mergeable(struct discard_info *back, 796 struct discard_info *front, unsigned int max_len) 797 { 798 return (back->lstart + back->len == front->lstart) && 799 (back->len + front->len <= max_len); 800 } 801 802 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 803 struct discard_info *back, unsigned int max_len) 804 { 805 return __is_discard_mergeable(back, cur, max_len); 806 } 807 808 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 809 struct discard_info *front, unsigned int max_len) 810 { 811 return __is_discard_mergeable(cur, front, max_len); 812 } 813 814 static inline bool __is_extent_mergeable(struct extent_info *back, 815 struct extent_info *front) 816 { 817 return (back->fofs + back->len == front->fofs && 818 back->blk + back->len == front->blk); 819 } 820 821 static inline bool __is_back_mergeable(struct extent_info *cur, 822 struct extent_info *back) 823 { 824 return __is_extent_mergeable(back, cur); 825 } 826 827 static inline bool __is_front_mergeable(struct extent_info *cur, 828 struct extent_info *front) 829 { 830 return __is_extent_mergeable(cur, front); 831 } 832 833 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 834 static inline void __try_update_largest_extent(struct extent_tree *et, 835 struct extent_node *en) 836 { 837 if (en->ei.len > et->largest.len) { 838 et->largest = en->ei; 839 et->largest_updated = true; 840 } 841 } 842 843 /* 844 * For free nid management 845 */ 846 enum nid_state { 847 FREE_NID, /* newly added to free nid list */ 848 PREALLOC_NID, /* it is preallocated */ 849 MAX_NID_STATE, 850 }; 851 852 enum nat_state { 853 TOTAL_NAT, 854 DIRTY_NAT, 855 RECLAIMABLE_NAT, 856 MAX_NAT_STATE, 857 }; 858 859 struct f2fs_nm_info { 860 block_t nat_blkaddr; /* base disk address of NAT */ 861 nid_t max_nid; /* maximum possible node ids */ 862 nid_t available_nids; /* # of available node ids */ 863 nid_t next_scan_nid; /* the next nid to be scanned */ 864 unsigned int ram_thresh; /* control the memory footprint */ 865 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 866 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 867 868 /* NAT cache management */ 869 struct radix_tree_root nat_root;/* root of the nat entry cache */ 870 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 871 struct rw_semaphore nat_tree_lock; /* protect nat entry tree */ 872 struct list_head nat_entries; /* cached nat entry list (clean) */ 873 spinlock_t nat_list_lock; /* protect clean nat entry list */ 874 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */ 875 unsigned int nat_blocks; /* # of nat blocks */ 876 877 /* free node ids management */ 878 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 879 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 880 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 881 spinlock_t nid_list_lock; /* protect nid lists ops */ 882 struct mutex build_lock; /* lock for build free nids */ 883 unsigned char **free_nid_bitmap; 884 unsigned char *nat_block_bitmap; 885 unsigned short *free_nid_count; /* free nid count of NAT block */ 886 887 /* for checkpoint */ 888 char *nat_bitmap; /* NAT bitmap pointer */ 889 890 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 891 unsigned char *nat_bits; /* NAT bits blocks */ 892 unsigned char *full_nat_bits; /* full NAT pages */ 893 unsigned char *empty_nat_bits; /* empty NAT pages */ 894 #ifdef CONFIG_F2FS_CHECK_FS 895 char *nat_bitmap_mir; /* NAT bitmap mirror */ 896 #endif 897 int bitmap_size; /* bitmap size */ 898 }; 899 900 /* 901 * this structure is used as one of function parameters. 902 * all the information are dedicated to a given direct node block determined 903 * by the data offset in a file. 904 */ 905 struct dnode_of_data { 906 struct inode *inode; /* vfs inode pointer */ 907 struct page *inode_page; /* its inode page, NULL is possible */ 908 struct page *node_page; /* cached direct node page */ 909 nid_t nid; /* node id of the direct node block */ 910 unsigned int ofs_in_node; /* data offset in the node page */ 911 bool inode_page_locked; /* inode page is locked or not */ 912 bool node_changed; /* is node block changed */ 913 char cur_level; /* level of hole node page */ 914 char max_level; /* level of current page located */ 915 block_t data_blkaddr; /* block address of the node block */ 916 }; 917 918 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 919 struct page *ipage, struct page *npage, nid_t nid) 920 { 921 memset(dn, 0, sizeof(*dn)); 922 dn->inode = inode; 923 dn->inode_page = ipage; 924 dn->node_page = npage; 925 dn->nid = nid; 926 } 927 928 /* 929 * For SIT manager 930 * 931 * By default, there are 6 active log areas across the whole main area. 932 * When considering hot and cold data separation to reduce cleaning overhead, 933 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 934 * respectively. 935 * In the current design, you should not change the numbers intentionally. 936 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 937 * logs individually according to the underlying devices. (default: 6) 938 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 939 * data and 8 for node logs. 940 */ 941 #define NR_CURSEG_DATA_TYPE (3) 942 #define NR_CURSEG_NODE_TYPE (3) 943 #define NR_CURSEG_INMEM_TYPE (2) 944 #define NR_CURSEG_RO_TYPE (2) 945 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 946 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE) 947 948 enum { 949 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 950 CURSEG_WARM_DATA, /* data blocks */ 951 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 952 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 953 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 954 CURSEG_COLD_NODE, /* indirect node blocks */ 955 NR_PERSISTENT_LOG, /* number of persistent log */ 956 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG, 957 /* pinned file that needs consecutive block address */ 958 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */ 959 NO_CHECK_TYPE, /* number of persistent & inmem log */ 960 }; 961 962 struct flush_cmd { 963 struct completion wait; 964 struct llist_node llnode; 965 nid_t ino; 966 int ret; 967 }; 968 969 struct flush_cmd_control { 970 struct task_struct *f2fs_issue_flush; /* flush thread */ 971 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 972 atomic_t issued_flush; /* # of issued flushes */ 973 atomic_t queued_flush; /* # of queued flushes */ 974 struct llist_head issue_list; /* list for command issue */ 975 struct llist_node *dispatch_list; /* list for command dispatch */ 976 }; 977 978 struct f2fs_sm_info { 979 struct sit_info *sit_info; /* whole segment information */ 980 struct free_segmap_info *free_info; /* free segment information */ 981 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 982 struct curseg_info *curseg_array; /* active segment information */ 983 984 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 985 986 block_t seg0_blkaddr; /* block address of 0'th segment */ 987 block_t main_blkaddr; /* start block address of main area */ 988 block_t ssa_blkaddr; /* start block address of SSA area */ 989 990 unsigned int segment_count; /* total # of segments */ 991 unsigned int main_segments; /* # of segments in main area */ 992 unsigned int reserved_segments; /* # of reserved segments */ 993 unsigned int ovp_segments; /* # of overprovision segments */ 994 995 /* a threshold to reclaim prefree segments */ 996 unsigned int rec_prefree_segments; 997 998 /* for batched trimming */ 999 unsigned int trim_sections; /* # of sections to trim */ 1000 1001 struct list_head sit_entry_set; /* sit entry set list */ 1002 1003 unsigned int ipu_policy; /* in-place-update policy */ 1004 unsigned int min_ipu_util; /* in-place-update threshold */ 1005 unsigned int min_fsync_blocks; /* threshold for fsync */ 1006 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 1007 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 1008 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 1009 1010 /* for flush command control */ 1011 struct flush_cmd_control *fcc_info; 1012 1013 /* for discard command control */ 1014 struct discard_cmd_control *dcc_info; 1015 }; 1016 1017 /* 1018 * For superblock 1019 */ 1020 /* 1021 * COUNT_TYPE for monitoring 1022 * 1023 * f2fs monitors the number of several block types such as on-writeback, 1024 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 1025 */ 1026 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 1027 enum count_type { 1028 F2FS_DIRTY_DENTS, 1029 F2FS_DIRTY_DATA, 1030 F2FS_DIRTY_QDATA, 1031 F2FS_DIRTY_NODES, 1032 F2FS_DIRTY_META, 1033 F2FS_INMEM_PAGES, 1034 F2FS_DIRTY_IMETA, 1035 F2FS_WB_CP_DATA, 1036 F2FS_WB_DATA, 1037 F2FS_RD_DATA, 1038 F2FS_RD_NODE, 1039 F2FS_RD_META, 1040 F2FS_DIO_WRITE, 1041 F2FS_DIO_READ, 1042 NR_COUNT_TYPE, 1043 }; 1044 1045 /* 1046 * The below are the page types of bios used in submit_bio(). 1047 * The available types are: 1048 * DATA User data pages. It operates as async mode. 1049 * NODE Node pages. It operates as async mode. 1050 * META FS metadata pages such as SIT, NAT, CP. 1051 * NR_PAGE_TYPE The number of page types. 1052 * META_FLUSH Make sure the previous pages are written 1053 * with waiting the bio's completion 1054 * ... Only can be used with META. 1055 */ 1056 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 1057 enum page_type { 1058 DATA, 1059 NODE, 1060 META, 1061 NR_PAGE_TYPE, 1062 META_FLUSH, 1063 INMEM, /* the below types are used by tracepoints only. */ 1064 INMEM_DROP, 1065 INMEM_INVALIDATE, 1066 INMEM_REVOKE, 1067 IPU, 1068 OPU, 1069 }; 1070 1071 enum temp_type { 1072 HOT = 0, /* must be zero for meta bio */ 1073 WARM, 1074 COLD, 1075 NR_TEMP_TYPE, 1076 }; 1077 1078 enum need_lock_type { 1079 LOCK_REQ = 0, 1080 LOCK_DONE, 1081 LOCK_RETRY, 1082 }; 1083 1084 enum cp_reason_type { 1085 CP_NO_NEEDED, 1086 CP_NON_REGULAR, 1087 CP_COMPRESSED, 1088 CP_HARDLINK, 1089 CP_SB_NEED_CP, 1090 CP_WRONG_PINO, 1091 CP_NO_SPC_ROLL, 1092 CP_NODE_NEED_CP, 1093 CP_FASTBOOT_MODE, 1094 CP_SPEC_LOG_NUM, 1095 CP_RECOVER_DIR, 1096 }; 1097 1098 enum iostat_type { 1099 /* WRITE IO */ 1100 APP_DIRECT_IO, /* app direct write IOs */ 1101 APP_BUFFERED_IO, /* app buffered write IOs */ 1102 APP_WRITE_IO, /* app write IOs */ 1103 APP_MAPPED_IO, /* app mapped IOs */ 1104 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1105 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1106 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1107 FS_GC_DATA_IO, /* data IOs from forground gc */ 1108 FS_GC_NODE_IO, /* node IOs from forground gc */ 1109 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1110 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1111 FS_CP_META_IO, /* meta IOs from checkpoint */ 1112 1113 /* READ IO */ 1114 APP_DIRECT_READ_IO, /* app direct read IOs */ 1115 APP_BUFFERED_READ_IO, /* app buffered read IOs */ 1116 APP_READ_IO, /* app read IOs */ 1117 APP_MAPPED_READ_IO, /* app mapped read IOs */ 1118 FS_DATA_READ_IO, /* data read IOs */ 1119 FS_GDATA_READ_IO, /* data read IOs from background gc */ 1120 FS_CDATA_READ_IO, /* compressed data read IOs */ 1121 FS_NODE_READ_IO, /* node read IOs */ 1122 FS_META_READ_IO, /* meta read IOs */ 1123 1124 /* other */ 1125 FS_DISCARD, /* discard */ 1126 NR_IO_TYPE, 1127 }; 1128 1129 struct f2fs_io_info { 1130 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1131 nid_t ino; /* inode number */ 1132 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1133 enum temp_type temp; /* contains HOT/WARM/COLD */ 1134 int op; /* contains REQ_OP_ */ 1135 int op_flags; /* req_flag_bits */ 1136 block_t new_blkaddr; /* new block address to be written */ 1137 block_t old_blkaddr; /* old block address before Cow */ 1138 struct page *page; /* page to be written */ 1139 struct page *encrypted_page; /* encrypted page */ 1140 struct page *compressed_page; /* compressed page */ 1141 struct list_head list; /* serialize IOs */ 1142 bool submitted; /* indicate IO submission */ 1143 int need_lock; /* indicate we need to lock cp_rwsem */ 1144 bool in_list; /* indicate fio is in io_list */ 1145 bool is_por; /* indicate IO is from recovery or not */ 1146 bool retry; /* need to reallocate block address */ 1147 int compr_blocks; /* # of compressed block addresses */ 1148 bool encrypted; /* indicate file is encrypted */ 1149 enum iostat_type io_type; /* io type */ 1150 struct writeback_control *io_wbc; /* writeback control */ 1151 struct bio **bio; /* bio for ipu */ 1152 sector_t *last_block; /* last block number in bio */ 1153 unsigned char version; /* version of the node */ 1154 }; 1155 1156 struct bio_entry { 1157 struct bio *bio; 1158 struct list_head list; 1159 }; 1160 1161 #define is_read_io(rw) ((rw) == READ) 1162 struct f2fs_bio_info { 1163 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1164 struct bio *bio; /* bios to merge */ 1165 sector_t last_block_in_bio; /* last block number */ 1166 struct f2fs_io_info fio; /* store buffered io info. */ 1167 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1168 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1169 struct list_head io_list; /* track fios */ 1170 struct list_head bio_list; /* bio entry list head */ 1171 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */ 1172 }; 1173 1174 #define FDEV(i) (sbi->devs[i]) 1175 #define RDEV(i) (raw_super->devs[i]) 1176 struct f2fs_dev_info { 1177 struct block_device *bdev; 1178 char path[MAX_PATH_LEN]; 1179 unsigned int total_segments; 1180 block_t start_blk; 1181 block_t end_blk; 1182 #ifdef CONFIG_BLK_DEV_ZONED 1183 unsigned int nr_blkz; /* Total number of zones */ 1184 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */ 1185 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */ 1186 #endif 1187 }; 1188 1189 enum inode_type { 1190 DIR_INODE, /* for dirty dir inode */ 1191 FILE_INODE, /* for dirty regular/symlink inode */ 1192 DIRTY_META, /* for all dirtied inode metadata */ 1193 ATOMIC_FILE, /* for all atomic files */ 1194 NR_INODE_TYPE, 1195 }; 1196 1197 /* for inner inode cache management */ 1198 struct inode_management { 1199 struct radix_tree_root ino_root; /* ino entry array */ 1200 spinlock_t ino_lock; /* for ino entry lock */ 1201 struct list_head ino_list; /* inode list head */ 1202 unsigned long ino_num; /* number of entries */ 1203 }; 1204 1205 /* for GC_AT */ 1206 struct atgc_management { 1207 bool atgc_enabled; /* ATGC is enabled or not */ 1208 struct rb_root_cached root; /* root of victim rb-tree */ 1209 struct list_head victim_list; /* linked with all victim entries */ 1210 unsigned int victim_count; /* victim count in rb-tree */ 1211 unsigned int candidate_ratio; /* candidate ratio */ 1212 unsigned int max_candidate_count; /* max candidate count */ 1213 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */ 1214 unsigned long long age_threshold; /* age threshold */ 1215 }; 1216 1217 /* For s_flag in struct f2fs_sb_info */ 1218 enum { 1219 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1220 SBI_IS_CLOSE, /* specify unmounting */ 1221 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1222 SBI_POR_DOING, /* recovery is doing or not */ 1223 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1224 SBI_NEED_CP, /* need to checkpoint */ 1225 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1226 SBI_IS_RECOVERED, /* recovered orphan/data */ 1227 SBI_CP_DISABLED, /* CP was disabled last mount */ 1228 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ 1229 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1230 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1231 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1232 SBI_IS_RESIZEFS, /* resizefs is in process */ 1233 }; 1234 1235 enum { 1236 CP_TIME, 1237 REQ_TIME, 1238 DISCARD_TIME, 1239 GC_TIME, 1240 DISABLE_TIME, 1241 UMOUNT_DISCARD_TIMEOUT, 1242 MAX_TIME, 1243 }; 1244 1245 enum { 1246 GC_NORMAL, 1247 GC_IDLE_CB, 1248 GC_IDLE_GREEDY, 1249 GC_IDLE_AT, 1250 GC_URGENT_HIGH, 1251 GC_URGENT_LOW, 1252 }; 1253 1254 enum { 1255 BGGC_MODE_ON, /* background gc is on */ 1256 BGGC_MODE_OFF, /* background gc is off */ 1257 BGGC_MODE_SYNC, /* 1258 * background gc is on, migrating blocks 1259 * like foreground gc 1260 */ 1261 }; 1262 1263 enum { 1264 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */ 1265 FS_MODE_LFS, /* use lfs allocation only */ 1266 }; 1267 1268 enum { 1269 WHINT_MODE_OFF, /* not pass down write hints */ 1270 WHINT_MODE_USER, /* try to pass down hints given by users */ 1271 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1272 }; 1273 1274 enum { 1275 ALLOC_MODE_DEFAULT, /* stay default */ 1276 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1277 }; 1278 1279 enum fsync_mode { 1280 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1281 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1282 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1283 }; 1284 1285 enum { 1286 COMPR_MODE_FS, /* 1287 * automatically compress compression 1288 * enabled files 1289 */ 1290 COMPR_MODE_USER, /* 1291 * automatical compression is disabled. 1292 * user can control the file compression 1293 * using ioctls 1294 */ 1295 }; 1296 1297 static inline int f2fs_test_bit(unsigned int nr, char *addr); 1298 static inline void f2fs_set_bit(unsigned int nr, char *addr); 1299 static inline void f2fs_clear_bit(unsigned int nr, char *addr); 1300 1301 /* 1302 * Layout of f2fs page.private: 1303 * 1304 * Layout A: lowest bit should be 1 1305 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... | 1306 * bit 0 PAGE_PRIVATE_NOT_POINTER 1307 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE 1308 * bit 2 PAGE_PRIVATE_DUMMY_WRITE 1309 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION 1310 * bit 4 PAGE_PRIVATE_INLINE_INODE 1311 * bit 5 PAGE_PRIVATE_REF_RESOURCE 1312 * bit 6- f2fs private data 1313 * 1314 * Layout B: lowest bit should be 0 1315 * page.private is a wrapped pointer. 1316 */ 1317 enum { 1318 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */ 1319 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */ 1320 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */ 1321 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */ 1322 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */ 1323 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */ 1324 PAGE_PRIVATE_MAX 1325 }; 1326 1327 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \ 1328 static inline bool page_private_##name(struct page *page) \ 1329 { \ 1330 return test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \ 1331 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \ 1332 } 1333 1334 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \ 1335 static inline void set_page_private_##name(struct page *page) \ 1336 { \ 1337 if (!PagePrivate(page)) { \ 1338 get_page(page); \ 1339 SetPagePrivate(page); \ 1340 } \ 1341 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \ 1342 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \ 1343 } 1344 1345 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \ 1346 static inline void clear_page_private_##name(struct page *page) \ 1347 { \ 1348 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \ 1349 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \ 1350 set_page_private(page, 0); \ 1351 if (PagePrivate(page)) { \ 1352 ClearPagePrivate(page); \ 1353 put_page(page); \ 1354 }\ 1355 } \ 1356 } 1357 1358 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER); 1359 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE); 1360 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE); 1361 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION); 1362 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE); 1363 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE); 1364 1365 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE); 1366 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE); 1367 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION); 1368 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE); 1369 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE); 1370 1371 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE); 1372 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE); 1373 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION); 1374 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE); 1375 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE); 1376 1377 /* For compression */ 1378 enum compress_algorithm_type { 1379 COMPRESS_LZO, 1380 COMPRESS_LZ4, 1381 COMPRESS_ZSTD, 1382 COMPRESS_LZORLE, 1383 COMPRESS_MAX, 1384 }; 1385 1386 enum compress_flag { 1387 COMPRESS_CHKSUM, 1388 COMPRESS_MAX_FLAG, 1389 }; 1390 1391 #define COMPRESS_DATA_RESERVED_SIZE 4 1392 struct compress_data { 1393 __le32 clen; /* compressed data size */ 1394 __le32 chksum; /* compressed data chksum */ 1395 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */ 1396 u8 cdata[]; /* compressed data */ 1397 }; 1398 1399 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data)) 1400 1401 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000 1402 1403 #define COMPRESS_LEVEL_OFFSET 8 1404 1405 /* compress context */ 1406 struct compress_ctx { 1407 struct inode *inode; /* inode the context belong to */ 1408 pgoff_t cluster_idx; /* cluster index number */ 1409 unsigned int cluster_size; /* page count in cluster */ 1410 unsigned int log_cluster_size; /* log of cluster size */ 1411 struct page **rpages; /* pages store raw data in cluster */ 1412 unsigned int nr_rpages; /* total page number in rpages */ 1413 struct page **cpages; /* pages store compressed data in cluster */ 1414 unsigned int nr_cpages; /* total page number in cpages */ 1415 void *rbuf; /* virtual mapped address on rpages */ 1416 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1417 size_t rlen; /* valid data length in rbuf */ 1418 size_t clen; /* valid data length in cbuf */ 1419 void *private; /* payload buffer for specified compression algorithm */ 1420 void *private2; /* extra payload buffer */ 1421 }; 1422 1423 /* compress context for write IO path */ 1424 struct compress_io_ctx { 1425 u32 magic; /* magic number to indicate page is compressed */ 1426 struct inode *inode; /* inode the context belong to */ 1427 struct page **rpages; /* pages store raw data in cluster */ 1428 unsigned int nr_rpages; /* total page number in rpages */ 1429 atomic_t pending_pages; /* in-flight compressed page count */ 1430 }; 1431 1432 /* Context for decompressing one cluster on the read IO path */ 1433 struct decompress_io_ctx { 1434 u32 magic; /* magic number to indicate page is compressed */ 1435 struct inode *inode; /* inode the context belong to */ 1436 pgoff_t cluster_idx; /* cluster index number */ 1437 unsigned int cluster_size; /* page count in cluster */ 1438 unsigned int log_cluster_size; /* log of cluster size */ 1439 struct page **rpages; /* pages store raw data in cluster */ 1440 unsigned int nr_rpages; /* total page number in rpages */ 1441 struct page **cpages; /* pages store compressed data in cluster */ 1442 unsigned int nr_cpages; /* total page number in cpages */ 1443 struct page **tpages; /* temp pages to pad holes in cluster */ 1444 void *rbuf; /* virtual mapped address on rpages */ 1445 struct compress_data *cbuf; /* virtual mapped address on cpages */ 1446 size_t rlen; /* valid data length in rbuf */ 1447 size_t clen; /* valid data length in cbuf */ 1448 1449 /* 1450 * The number of compressed pages remaining to be read in this cluster. 1451 * This is initially nr_cpages. It is decremented by 1 each time a page 1452 * has been read (or failed to be read). When it reaches 0, the cluster 1453 * is decompressed (or an error is reported). 1454 * 1455 * If an error occurs before all the pages have been submitted for I/O, 1456 * then this will never reach 0. In this case the I/O submitter is 1457 * responsible for calling f2fs_decompress_end_io() instead. 1458 */ 1459 atomic_t remaining_pages; 1460 1461 /* 1462 * Number of references to this decompress_io_ctx. 1463 * 1464 * One reference is held for I/O completion. This reference is dropped 1465 * after the pagecache pages are updated and unlocked -- either after 1466 * decompression (and verity if enabled), or after an error. 1467 * 1468 * In addition, each compressed page holds a reference while it is in a 1469 * bio. These references are necessary prevent compressed pages from 1470 * being freed while they are still in a bio. 1471 */ 1472 refcount_t refcnt; 1473 1474 bool failed; /* IO error occurred before decompression? */ 1475 bool need_verity; /* need fs-verity verification after decompression? */ 1476 void *private; /* payload buffer for specified decompression algorithm */ 1477 void *private2; /* extra payload buffer */ 1478 struct work_struct verity_work; /* work to verify the decompressed pages */ 1479 }; 1480 1481 #define NULL_CLUSTER ((unsigned int)(~0)) 1482 #define MIN_COMPRESS_LOG_SIZE 2 1483 #define MAX_COMPRESS_LOG_SIZE 8 1484 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size)) 1485 1486 struct f2fs_sb_info { 1487 struct super_block *sb; /* pointer to VFS super block */ 1488 struct proc_dir_entry *s_proc; /* proc entry */ 1489 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1490 struct rw_semaphore sb_lock; /* lock for raw super block */ 1491 int valid_super_block; /* valid super block no */ 1492 unsigned long s_flag; /* flags for sbi */ 1493 struct mutex writepages; /* mutex for writepages() */ 1494 1495 #ifdef CONFIG_BLK_DEV_ZONED 1496 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1497 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1498 #endif 1499 1500 /* for node-related operations */ 1501 struct f2fs_nm_info *nm_info; /* node manager */ 1502 struct inode *node_inode; /* cache node blocks */ 1503 1504 /* for segment-related operations */ 1505 struct f2fs_sm_info *sm_info; /* segment manager */ 1506 1507 /* for bio operations */ 1508 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1509 /* keep migration IO order for LFS mode */ 1510 struct rw_semaphore io_order_lock; 1511 mempool_t *write_io_dummy; /* Dummy pages */ 1512 1513 /* for checkpoint */ 1514 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1515 int cur_cp_pack; /* remain current cp pack */ 1516 spinlock_t cp_lock; /* for flag in ckpt */ 1517 struct inode *meta_inode; /* cache meta blocks */ 1518 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */ 1519 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1520 struct rw_semaphore node_write; /* locking node writes */ 1521 struct rw_semaphore node_change; /* locking node change */ 1522 wait_queue_head_t cp_wait; 1523 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1524 long interval_time[MAX_TIME]; /* to store thresholds */ 1525 struct ckpt_req_control cprc_info; /* for checkpoint request control */ 1526 1527 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1528 1529 spinlock_t fsync_node_lock; /* for node entry lock */ 1530 struct list_head fsync_node_list; /* node list head */ 1531 unsigned int fsync_seg_id; /* sequence id */ 1532 unsigned int fsync_node_num; /* number of node entries */ 1533 1534 /* for orphan inode, use 0'th array */ 1535 unsigned int max_orphans; /* max orphan inodes */ 1536 1537 /* for inode management */ 1538 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1539 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1540 struct mutex flush_lock; /* for flush exclusion */ 1541 1542 /* for extent tree cache */ 1543 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1544 struct mutex extent_tree_lock; /* locking extent radix tree */ 1545 struct list_head extent_list; /* lru list for shrinker */ 1546 spinlock_t extent_lock; /* locking extent lru list */ 1547 atomic_t total_ext_tree; /* extent tree count */ 1548 struct list_head zombie_list; /* extent zombie tree list */ 1549 atomic_t total_zombie_tree; /* extent zombie tree count */ 1550 atomic_t total_ext_node; /* extent info count */ 1551 1552 /* basic filesystem units */ 1553 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1554 unsigned int log_blocksize; /* log2 block size */ 1555 unsigned int blocksize; /* block size */ 1556 unsigned int root_ino_num; /* root inode number*/ 1557 unsigned int node_ino_num; /* node inode number*/ 1558 unsigned int meta_ino_num; /* meta inode number*/ 1559 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1560 unsigned int blocks_per_seg; /* blocks per segment */ 1561 unsigned int segs_per_sec; /* segments per section */ 1562 unsigned int secs_per_zone; /* sections per zone */ 1563 unsigned int total_sections; /* total section count */ 1564 unsigned int total_node_count; /* total node block count */ 1565 unsigned int total_valid_node_count; /* valid node block count */ 1566 int dir_level; /* directory level */ 1567 int readdir_ra; /* readahead inode in readdir */ 1568 u64 max_io_bytes; /* max io bytes to merge IOs */ 1569 1570 block_t user_block_count; /* # of user blocks */ 1571 block_t total_valid_block_count; /* # of valid blocks */ 1572 block_t discard_blks; /* discard command candidats */ 1573 block_t last_valid_block_count; /* for recovery */ 1574 block_t reserved_blocks; /* configurable reserved blocks */ 1575 block_t current_reserved_blocks; /* current reserved blocks */ 1576 1577 /* Additional tracking for no checkpoint mode */ 1578 block_t unusable_block_count; /* # of blocks saved by last cp */ 1579 1580 unsigned int nquota_files; /* # of quota sysfile */ 1581 struct rw_semaphore quota_sem; /* blocking cp for flags */ 1582 1583 /* # of pages, see count_type */ 1584 atomic_t nr_pages[NR_COUNT_TYPE]; 1585 /* # of allocated blocks */ 1586 struct percpu_counter alloc_valid_block_count; 1587 1588 /* writeback control */ 1589 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1590 1591 /* valid inode count */ 1592 struct percpu_counter total_valid_inode_count; 1593 1594 struct f2fs_mount_info mount_opt; /* mount options */ 1595 1596 /* for cleaning operations */ 1597 struct rw_semaphore gc_lock; /* 1598 * semaphore for GC, avoid 1599 * race between GC and GC or CP 1600 */ 1601 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1602 struct atgc_management am; /* atgc management */ 1603 unsigned int cur_victim_sec; /* current victim section num */ 1604 unsigned int gc_mode; /* current GC state */ 1605 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1606 1607 /* for skip statistic */ 1608 unsigned int atomic_files; /* # of opened atomic file */ 1609 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1610 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1611 1612 /* threshold for gc trials on pinned files */ 1613 u64 gc_pin_file_threshold; 1614 struct rw_semaphore pin_sem; 1615 1616 /* maximum # of trials to find a victim segment for SSR and GC */ 1617 unsigned int max_victim_search; 1618 /* migration granularity of garbage collection, unit: segment */ 1619 unsigned int migration_granularity; 1620 1621 /* 1622 * for stat information. 1623 * one is for the LFS mode, and the other is for the SSR mode. 1624 */ 1625 #ifdef CONFIG_F2FS_STAT_FS 1626 struct f2fs_stat_info *stat_info; /* FS status information */ 1627 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1628 unsigned int segment_count[2]; /* # of allocated segments */ 1629 unsigned int block_count[2]; /* # of allocated blocks */ 1630 atomic_t inplace_count; /* # of inplace update */ 1631 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1632 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1633 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1634 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1635 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1636 atomic_t inline_inode; /* # of inline_data inodes */ 1637 atomic_t inline_dir; /* # of inline_dentry inodes */ 1638 atomic_t compr_inode; /* # of compressed inodes */ 1639 atomic64_t compr_blocks; /* # of compressed blocks */ 1640 atomic_t vw_cnt; /* # of volatile writes */ 1641 atomic_t max_aw_cnt; /* max # of atomic writes */ 1642 atomic_t max_vw_cnt; /* max # of volatile writes */ 1643 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1644 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1645 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1646 #endif 1647 spinlock_t stat_lock; /* lock for stat operations */ 1648 1649 /* For app/fs IO statistics */ 1650 spinlock_t iostat_lock; 1651 unsigned long long rw_iostat[NR_IO_TYPE]; 1652 unsigned long long prev_rw_iostat[NR_IO_TYPE]; 1653 bool iostat_enable; 1654 unsigned long iostat_next_period; 1655 unsigned int iostat_period_ms; 1656 1657 /* to attach REQ_META|REQ_FUA flags */ 1658 unsigned int data_io_flag; 1659 unsigned int node_io_flag; 1660 1661 /* For sysfs suppport */ 1662 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */ 1663 struct completion s_kobj_unregister; 1664 1665 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */ 1666 struct completion s_stat_kobj_unregister; 1667 1668 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */ 1669 struct completion s_feature_list_kobj_unregister; 1670 1671 /* For shrinker support */ 1672 struct list_head s_list; 1673 int s_ndevs; /* number of devices */ 1674 struct f2fs_dev_info *devs; /* for device list */ 1675 unsigned int dirty_device; /* for checkpoint data flush */ 1676 spinlock_t dev_lock; /* protect dirty_device */ 1677 struct mutex umount_mutex; 1678 unsigned int shrinker_run_no; 1679 1680 /* For write statistics */ 1681 u64 sectors_written_start; 1682 u64 kbytes_written; 1683 1684 /* Reference to checksum algorithm driver via cryptoapi */ 1685 struct crypto_shash *s_chksum_driver; 1686 1687 /* Precomputed FS UUID checksum for seeding other checksums */ 1688 __u32 s_chksum_seed; 1689 1690 struct workqueue_struct *post_read_wq; /* post read workqueue */ 1691 1692 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */ 1693 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */ 1694 1695 #ifdef CONFIG_F2FS_FS_COMPRESSION 1696 struct kmem_cache *page_array_slab; /* page array entry */ 1697 unsigned int page_array_slab_size; /* default page array slab size */ 1698 1699 /* For runtime compression statistics */ 1700 u64 compr_written_block; 1701 u64 compr_saved_block; 1702 u32 compr_new_inode; 1703 #endif 1704 }; 1705 1706 struct f2fs_private_dio { 1707 struct inode *inode; 1708 void *orig_private; 1709 bio_end_io_t *orig_end_io; 1710 bool write; 1711 }; 1712 1713 #ifdef CONFIG_F2FS_FAULT_INJECTION 1714 #define f2fs_show_injection_info(sbi, type) \ 1715 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \ 1716 KERN_INFO, sbi->sb->s_id, \ 1717 f2fs_fault_name[type], \ 1718 __func__, __builtin_return_address(0)) 1719 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1720 { 1721 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1722 1723 if (!ffi->inject_rate) 1724 return false; 1725 1726 if (!IS_FAULT_SET(ffi, type)) 1727 return false; 1728 1729 atomic_inc(&ffi->inject_ops); 1730 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1731 atomic_set(&ffi->inject_ops, 0); 1732 return true; 1733 } 1734 return false; 1735 } 1736 #else 1737 #define f2fs_show_injection_info(sbi, type) do { } while (0) 1738 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1739 { 1740 return false; 1741 } 1742 #endif 1743 1744 /* 1745 * Test if the mounted volume is a multi-device volume. 1746 * - For a single regular disk volume, sbi->s_ndevs is 0. 1747 * - For a single zoned disk volume, sbi->s_ndevs is 1. 1748 * - For a multi-device volume, sbi->s_ndevs is always 2 or more. 1749 */ 1750 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi) 1751 { 1752 return sbi->s_ndevs > 1; 1753 } 1754 1755 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1756 { 1757 unsigned long now = jiffies; 1758 1759 sbi->last_time[type] = now; 1760 1761 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1762 if (type == REQ_TIME) { 1763 sbi->last_time[DISCARD_TIME] = now; 1764 sbi->last_time[GC_TIME] = now; 1765 } 1766 } 1767 1768 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1769 { 1770 unsigned long interval = sbi->interval_time[type] * HZ; 1771 1772 return time_after(jiffies, sbi->last_time[type] + interval); 1773 } 1774 1775 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1776 int type) 1777 { 1778 unsigned long interval = sbi->interval_time[type] * HZ; 1779 unsigned int wait_ms = 0; 1780 long delta; 1781 1782 delta = (sbi->last_time[type] + interval) - jiffies; 1783 if (delta > 0) 1784 wait_ms = jiffies_to_msecs(delta); 1785 1786 return wait_ms; 1787 } 1788 1789 /* 1790 * Inline functions 1791 */ 1792 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1793 const void *address, unsigned int length) 1794 { 1795 struct { 1796 struct shash_desc shash; 1797 char ctx[4]; 1798 } desc; 1799 int err; 1800 1801 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1802 1803 desc.shash.tfm = sbi->s_chksum_driver; 1804 *(u32 *)desc.ctx = crc; 1805 1806 err = crypto_shash_update(&desc.shash, address, length); 1807 BUG_ON(err); 1808 1809 return *(u32 *)desc.ctx; 1810 } 1811 1812 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1813 unsigned int length) 1814 { 1815 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1816 } 1817 1818 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1819 void *buf, size_t buf_size) 1820 { 1821 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1822 } 1823 1824 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1825 const void *address, unsigned int length) 1826 { 1827 return __f2fs_crc32(sbi, crc, address, length); 1828 } 1829 1830 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1831 { 1832 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1833 } 1834 1835 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1836 { 1837 return sb->s_fs_info; 1838 } 1839 1840 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1841 { 1842 return F2FS_SB(inode->i_sb); 1843 } 1844 1845 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1846 { 1847 return F2FS_I_SB(mapping->host); 1848 } 1849 1850 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1851 { 1852 return F2FS_M_SB(page_file_mapping(page)); 1853 } 1854 1855 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1856 { 1857 return (struct f2fs_super_block *)(sbi->raw_super); 1858 } 1859 1860 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1861 { 1862 return (struct f2fs_checkpoint *)(sbi->ckpt); 1863 } 1864 1865 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1866 { 1867 return (struct f2fs_node *)page_address(page); 1868 } 1869 1870 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1871 { 1872 return &((struct f2fs_node *)page_address(page))->i; 1873 } 1874 1875 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1876 { 1877 return (struct f2fs_nm_info *)(sbi->nm_info); 1878 } 1879 1880 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1881 { 1882 return (struct f2fs_sm_info *)(sbi->sm_info); 1883 } 1884 1885 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1886 { 1887 return (struct sit_info *)(SM_I(sbi)->sit_info); 1888 } 1889 1890 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1891 { 1892 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1893 } 1894 1895 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1896 { 1897 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1898 } 1899 1900 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1901 { 1902 return sbi->meta_inode->i_mapping; 1903 } 1904 1905 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1906 { 1907 return sbi->node_inode->i_mapping; 1908 } 1909 1910 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1911 { 1912 return test_bit(type, &sbi->s_flag); 1913 } 1914 1915 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1916 { 1917 set_bit(type, &sbi->s_flag); 1918 } 1919 1920 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1921 { 1922 clear_bit(type, &sbi->s_flag); 1923 } 1924 1925 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1926 { 1927 return le64_to_cpu(cp->checkpoint_ver); 1928 } 1929 1930 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1931 { 1932 if (type < F2FS_MAX_QUOTAS) 1933 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1934 return 0; 1935 } 1936 1937 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1938 { 1939 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1940 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1941 } 1942 1943 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1944 { 1945 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1946 1947 return ckpt_flags & f; 1948 } 1949 1950 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1951 { 1952 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1953 } 1954 1955 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1956 { 1957 unsigned int ckpt_flags; 1958 1959 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1960 ckpt_flags |= f; 1961 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1962 } 1963 1964 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1965 { 1966 unsigned long flags; 1967 1968 spin_lock_irqsave(&sbi->cp_lock, flags); 1969 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1970 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1971 } 1972 1973 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1974 { 1975 unsigned int ckpt_flags; 1976 1977 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1978 ckpt_flags &= (~f); 1979 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1980 } 1981 1982 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1983 { 1984 unsigned long flags; 1985 1986 spin_lock_irqsave(&sbi->cp_lock, flags); 1987 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1988 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1989 } 1990 1991 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1992 { 1993 unsigned long flags; 1994 unsigned char *nat_bits; 1995 1996 /* 1997 * In order to re-enable nat_bits we need to call fsck.f2fs by 1998 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1999 * so let's rely on regular fsck or unclean shutdown. 2000 */ 2001 2002 if (lock) 2003 spin_lock_irqsave(&sbi->cp_lock, flags); 2004 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 2005 nat_bits = NM_I(sbi)->nat_bits; 2006 NM_I(sbi)->nat_bits = NULL; 2007 if (lock) 2008 spin_unlock_irqrestore(&sbi->cp_lock, flags); 2009 2010 kvfree(nat_bits); 2011 } 2012 2013 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 2014 struct cp_control *cpc) 2015 { 2016 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 2017 2018 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 2019 } 2020 2021 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 2022 { 2023 down_read(&sbi->cp_rwsem); 2024 } 2025 2026 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 2027 { 2028 return down_read_trylock(&sbi->cp_rwsem); 2029 } 2030 2031 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 2032 { 2033 up_read(&sbi->cp_rwsem); 2034 } 2035 2036 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 2037 { 2038 down_write(&sbi->cp_rwsem); 2039 } 2040 2041 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 2042 { 2043 up_write(&sbi->cp_rwsem); 2044 } 2045 2046 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 2047 { 2048 int reason = CP_SYNC; 2049 2050 if (test_opt(sbi, FASTBOOT)) 2051 reason = CP_FASTBOOT; 2052 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 2053 reason = CP_UMOUNT; 2054 return reason; 2055 } 2056 2057 static inline bool __remain_node_summaries(int reason) 2058 { 2059 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 2060 } 2061 2062 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 2063 { 2064 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 2065 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 2066 } 2067 2068 /* 2069 * Check whether the inode has blocks or not 2070 */ 2071 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 2072 { 2073 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 2074 2075 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 2076 } 2077 2078 static inline bool f2fs_has_xattr_block(unsigned int ofs) 2079 { 2080 return ofs == XATTR_NODE_OFFSET; 2081 } 2082 2083 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 2084 struct inode *inode, bool cap) 2085 { 2086 if (!inode) 2087 return true; 2088 if (!test_opt(sbi, RESERVE_ROOT)) 2089 return false; 2090 if (IS_NOQUOTA(inode)) 2091 return true; 2092 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 2093 return true; 2094 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 2095 in_group_p(F2FS_OPTION(sbi).s_resgid)) 2096 return true; 2097 if (cap && capable(CAP_SYS_RESOURCE)) 2098 return true; 2099 return false; 2100 } 2101 2102 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 2103 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 2104 struct inode *inode, blkcnt_t *count) 2105 { 2106 blkcnt_t diff = 0, release = 0; 2107 block_t avail_user_block_count; 2108 int ret; 2109 2110 ret = dquot_reserve_block(inode, *count); 2111 if (ret) 2112 return ret; 2113 2114 if (time_to_inject(sbi, FAULT_BLOCK)) { 2115 f2fs_show_injection_info(sbi, FAULT_BLOCK); 2116 release = *count; 2117 goto release_quota; 2118 } 2119 2120 /* 2121 * let's increase this in prior to actual block count change in order 2122 * for f2fs_sync_file to avoid data races when deciding checkpoint. 2123 */ 2124 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 2125 2126 spin_lock(&sbi->stat_lock); 2127 sbi->total_valid_block_count += (block_t)(*count); 2128 avail_user_block_count = sbi->user_block_count - 2129 sbi->current_reserved_blocks; 2130 2131 if (!__allow_reserved_blocks(sbi, inode, true)) 2132 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 2133 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { 2134 if (avail_user_block_count > sbi->unusable_block_count) 2135 avail_user_block_count -= sbi->unusable_block_count; 2136 else 2137 avail_user_block_count = 0; 2138 } 2139 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 2140 diff = sbi->total_valid_block_count - avail_user_block_count; 2141 if (diff > *count) 2142 diff = *count; 2143 *count -= diff; 2144 release = diff; 2145 sbi->total_valid_block_count -= diff; 2146 if (!*count) { 2147 spin_unlock(&sbi->stat_lock); 2148 goto enospc; 2149 } 2150 } 2151 spin_unlock(&sbi->stat_lock); 2152 2153 if (unlikely(release)) { 2154 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2155 dquot_release_reservation_block(inode, release); 2156 } 2157 f2fs_i_blocks_write(inode, *count, true, true); 2158 return 0; 2159 2160 enospc: 2161 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 2162 release_quota: 2163 dquot_release_reservation_block(inode, release); 2164 return -ENOSPC; 2165 } 2166 2167 __printf(2, 3) 2168 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...); 2169 2170 #define f2fs_err(sbi, fmt, ...) \ 2171 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__) 2172 #define f2fs_warn(sbi, fmt, ...) \ 2173 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__) 2174 #define f2fs_notice(sbi, fmt, ...) \ 2175 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__) 2176 #define f2fs_info(sbi, fmt, ...) \ 2177 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__) 2178 #define f2fs_debug(sbi, fmt, ...) \ 2179 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__) 2180 2181 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 2182 struct inode *inode, 2183 block_t count) 2184 { 2185 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 2186 2187 spin_lock(&sbi->stat_lock); 2188 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 2189 sbi->total_valid_block_count -= (block_t)count; 2190 if (sbi->reserved_blocks && 2191 sbi->current_reserved_blocks < sbi->reserved_blocks) 2192 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 2193 sbi->current_reserved_blocks + count); 2194 spin_unlock(&sbi->stat_lock); 2195 if (unlikely(inode->i_blocks < sectors)) { 2196 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu", 2197 inode->i_ino, 2198 (unsigned long long)inode->i_blocks, 2199 (unsigned long long)sectors); 2200 set_sbi_flag(sbi, SBI_NEED_FSCK); 2201 return; 2202 } 2203 f2fs_i_blocks_write(inode, count, false, true); 2204 } 2205 2206 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 2207 { 2208 atomic_inc(&sbi->nr_pages[count_type]); 2209 2210 if (count_type == F2FS_DIRTY_DENTS || 2211 count_type == F2FS_DIRTY_NODES || 2212 count_type == F2FS_DIRTY_META || 2213 count_type == F2FS_DIRTY_QDATA || 2214 count_type == F2FS_DIRTY_IMETA) 2215 set_sbi_flag(sbi, SBI_IS_DIRTY); 2216 } 2217 2218 static inline void inode_inc_dirty_pages(struct inode *inode) 2219 { 2220 atomic_inc(&F2FS_I(inode)->dirty_pages); 2221 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2222 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2223 if (IS_NOQUOTA(inode)) 2224 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2225 } 2226 2227 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 2228 { 2229 atomic_dec(&sbi->nr_pages[count_type]); 2230 } 2231 2232 static inline void inode_dec_dirty_pages(struct inode *inode) 2233 { 2234 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 2235 !S_ISLNK(inode->i_mode)) 2236 return; 2237 2238 atomic_dec(&F2FS_I(inode)->dirty_pages); 2239 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 2240 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 2241 if (IS_NOQUOTA(inode)) 2242 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 2243 } 2244 2245 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 2246 { 2247 return atomic_read(&sbi->nr_pages[count_type]); 2248 } 2249 2250 static inline int get_dirty_pages(struct inode *inode) 2251 { 2252 return atomic_read(&F2FS_I(inode)->dirty_pages); 2253 } 2254 2255 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 2256 { 2257 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 2258 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 2259 sbi->log_blocks_per_seg; 2260 2261 return segs / sbi->segs_per_sec; 2262 } 2263 2264 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 2265 { 2266 return sbi->total_valid_block_count; 2267 } 2268 2269 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 2270 { 2271 return sbi->discard_blks; 2272 } 2273 2274 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 2275 { 2276 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2277 2278 /* return NAT or SIT bitmap */ 2279 if (flag == NAT_BITMAP) 2280 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 2281 else if (flag == SIT_BITMAP) 2282 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 2283 2284 return 0; 2285 } 2286 2287 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 2288 { 2289 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 2290 } 2291 2292 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 2293 { 2294 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 2295 void *tmp_ptr = &ckpt->sit_nat_version_bitmap; 2296 int offset; 2297 2298 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 2299 offset = (flag == SIT_BITMAP) ? 2300 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 2301 /* 2302 * if large_nat_bitmap feature is enabled, leave checksum 2303 * protection for all nat/sit bitmaps. 2304 */ 2305 return tmp_ptr + offset + sizeof(__le32); 2306 } 2307 2308 if (__cp_payload(sbi) > 0) { 2309 if (flag == NAT_BITMAP) 2310 return &ckpt->sit_nat_version_bitmap; 2311 else 2312 return (unsigned char *)ckpt + F2FS_BLKSIZE; 2313 } else { 2314 offset = (flag == NAT_BITMAP) ? 2315 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 2316 return tmp_ptr + offset; 2317 } 2318 } 2319 2320 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 2321 { 2322 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2323 2324 if (sbi->cur_cp_pack == 2) 2325 start_addr += sbi->blocks_per_seg; 2326 return start_addr; 2327 } 2328 2329 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 2330 { 2331 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 2332 2333 if (sbi->cur_cp_pack == 1) 2334 start_addr += sbi->blocks_per_seg; 2335 return start_addr; 2336 } 2337 2338 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 2339 { 2340 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 2341 } 2342 2343 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 2344 { 2345 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 2346 } 2347 2348 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 2349 struct inode *inode, bool is_inode) 2350 { 2351 block_t valid_block_count; 2352 unsigned int valid_node_count, user_block_count; 2353 int err; 2354 2355 if (is_inode) { 2356 if (inode) { 2357 err = dquot_alloc_inode(inode); 2358 if (err) 2359 return err; 2360 } 2361 } else { 2362 err = dquot_reserve_block(inode, 1); 2363 if (err) 2364 return err; 2365 } 2366 2367 if (time_to_inject(sbi, FAULT_BLOCK)) { 2368 f2fs_show_injection_info(sbi, FAULT_BLOCK); 2369 goto enospc; 2370 } 2371 2372 spin_lock(&sbi->stat_lock); 2373 2374 valid_block_count = sbi->total_valid_block_count + 2375 sbi->current_reserved_blocks + 1; 2376 2377 if (!__allow_reserved_blocks(sbi, inode, false)) 2378 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 2379 user_block_count = sbi->user_block_count; 2380 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 2381 user_block_count -= sbi->unusable_block_count; 2382 2383 if (unlikely(valid_block_count > user_block_count)) { 2384 spin_unlock(&sbi->stat_lock); 2385 goto enospc; 2386 } 2387 2388 valid_node_count = sbi->total_valid_node_count + 1; 2389 if (unlikely(valid_node_count > sbi->total_node_count)) { 2390 spin_unlock(&sbi->stat_lock); 2391 goto enospc; 2392 } 2393 2394 sbi->total_valid_node_count++; 2395 sbi->total_valid_block_count++; 2396 spin_unlock(&sbi->stat_lock); 2397 2398 if (inode) { 2399 if (is_inode) 2400 f2fs_mark_inode_dirty_sync(inode, true); 2401 else 2402 f2fs_i_blocks_write(inode, 1, true, true); 2403 } 2404 2405 percpu_counter_inc(&sbi->alloc_valid_block_count); 2406 return 0; 2407 2408 enospc: 2409 if (is_inode) { 2410 if (inode) 2411 dquot_free_inode(inode); 2412 } else { 2413 dquot_release_reservation_block(inode, 1); 2414 } 2415 return -ENOSPC; 2416 } 2417 2418 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2419 struct inode *inode, bool is_inode) 2420 { 2421 spin_lock(&sbi->stat_lock); 2422 2423 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2424 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2425 2426 sbi->total_valid_node_count--; 2427 sbi->total_valid_block_count--; 2428 if (sbi->reserved_blocks && 2429 sbi->current_reserved_blocks < sbi->reserved_blocks) 2430 sbi->current_reserved_blocks++; 2431 2432 spin_unlock(&sbi->stat_lock); 2433 2434 if (is_inode) { 2435 dquot_free_inode(inode); 2436 } else { 2437 if (unlikely(inode->i_blocks == 0)) { 2438 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu", 2439 inode->i_ino, 2440 (unsigned long long)inode->i_blocks); 2441 set_sbi_flag(sbi, SBI_NEED_FSCK); 2442 return; 2443 } 2444 f2fs_i_blocks_write(inode, 1, false, true); 2445 } 2446 } 2447 2448 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2449 { 2450 return sbi->total_valid_node_count; 2451 } 2452 2453 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2454 { 2455 percpu_counter_inc(&sbi->total_valid_inode_count); 2456 } 2457 2458 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2459 { 2460 percpu_counter_dec(&sbi->total_valid_inode_count); 2461 } 2462 2463 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2464 { 2465 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2466 } 2467 2468 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2469 pgoff_t index, bool for_write) 2470 { 2471 struct page *page; 2472 2473 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2474 if (!for_write) 2475 page = find_get_page_flags(mapping, index, 2476 FGP_LOCK | FGP_ACCESSED); 2477 else 2478 page = find_lock_page(mapping, index); 2479 if (page) 2480 return page; 2481 2482 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2483 f2fs_show_injection_info(F2FS_M_SB(mapping), 2484 FAULT_PAGE_ALLOC); 2485 return NULL; 2486 } 2487 } 2488 2489 if (!for_write) 2490 return grab_cache_page(mapping, index); 2491 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2492 } 2493 2494 static inline struct page *f2fs_pagecache_get_page( 2495 struct address_space *mapping, pgoff_t index, 2496 int fgp_flags, gfp_t gfp_mask) 2497 { 2498 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2499 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET); 2500 return NULL; 2501 } 2502 2503 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2504 } 2505 2506 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2507 { 2508 char *src_kaddr = kmap(src); 2509 char *dst_kaddr = kmap(dst); 2510 2511 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2512 kunmap(dst); 2513 kunmap(src); 2514 } 2515 2516 static inline void f2fs_put_page(struct page *page, int unlock) 2517 { 2518 if (!page) 2519 return; 2520 2521 if (unlock) { 2522 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2523 unlock_page(page); 2524 } 2525 put_page(page); 2526 } 2527 2528 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2529 { 2530 if (dn->node_page) 2531 f2fs_put_page(dn->node_page, 1); 2532 if (dn->inode_page && dn->node_page != dn->inode_page) 2533 f2fs_put_page(dn->inode_page, 0); 2534 dn->node_page = NULL; 2535 dn->inode_page = NULL; 2536 } 2537 2538 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2539 size_t size) 2540 { 2541 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2542 } 2543 2544 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2545 gfp_t flags) 2546 { 2547 void *entry; 2548 2549 entry = kmem_cache_alloc(cachep, flags); 2550 if (!entry) 2551 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2552 return entry; 2553 } 2554 2555 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type) 2556 { 2557 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2558 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2559 get_pages(sbi, F2FS_WB_CP_DATA) || 2560 get_pages(sbi, F2FS_DIO_READ) || 2561 get_pages(sbi, F2FS_DIO_WRITE)) 2562 return true; 2563 2564 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info && 2565 atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) 2566 return true; 2567 2568 if (SM_I(sbi) && SM_I(sbi)->fcc_info && 2569 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2570 return true; 2571 return false; 2572 } 2573 2574 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2575 { 2576 if (sbi->gc_mode == GC_URGENT_HIGH) 2577 return true; 2578 2579 if (is_inflight_io(sbi, type)) 2580 return false; 2581 2582 if (sbi->gc_mode == GC_URGENT_LOW && 2583 (type == DISCARD_TIME || type == GC_TIME)) 2584 return true; 2585 2586 return f2fs_time_over(sbi, type); 2587 } 2588 2589 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2590 unsigned long index, void *item) 2591 { 2592 while (radix_tree_insert(root, index, item)) 2593 cond_resched(); 2594 } 2595 2596 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2597 2598 static inline bool IS_INODE(struct page *page) 2599 { 2600 struct f2fs_node *p = F2FS_NODE(page); 2601 2602 return RAW_IS_INODE(p); 2603 } 2604 2605 static inline int offset_in_addr(struct f2fs_inode *i) 2606 { 2607 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2608 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2609 } 2610 2611 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2612 { 2613 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2614 } 2615 2616 static inline int f2fs_has_extra_attr(struct inode *inode); 2617 static inline block_t data_blkaddr(struct inode *inode, 2618 struct page *node_page, unsigned int offset) 2619 { 2620 struct f2fs_node *raw_node; 2621 __le32 *addr_array; 2622 int base = 0; 2623 bool is_inode = IS_INODE(node_page); 2624 2625 raw_node = F2FS_NODE(node_page); 2626 2627 if (is_inode) { 2628 if (!inode) 2629 /* from GC path only */ 2630 base = offset_in_addr(&raw_node->i); 2631 else if (f2fs_has_extra_attr(inode)) 2632 base = get_extra_isize(inode); 2633 } 2634 2635 addr_array = blkaddr_in_node(raw_node); 2636 return le32_to_cpu(addr_array[base + offset]); 2637 } 2638 2639 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn) 2640 { 2641 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node); 2642 } 2643 2644 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2645 { 2646 int mask; 2647 2648 addr += (nr >> 3); 2649 mask = 1 << (7 - (nr & 0x07)); 2650 return mask & *addr; 2651 } 2652 2653 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2654 { 2655 int mask; 2656 2657 addr += (nr >> 3); 2658 mask = 1 << (7 - (nr & 0x07)); 2659 *addr |= mask; 2660 } 2661 2662 static inline void f2fs_clear_bit(unsigned int nr, char *addr) 2663 { 2664 int mask; 2665 2666 addr += (nr >> 3); 2667 mask = 1 << (7 - (nr & 0x07)); 2668 *addr &= ~mask; 2669 } 2670 2671 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2672 { 2673 int mask; 2674 int ret; 2675 2676 addr += (nr >> 3); 2677 mask = 1 << (7 - (nr & 0x07)); 2678 ret = mask & *addr; 2679 *addr |= mask; 2680 return ret; 2681 } 2682 2683 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2684 { 2685 int mask; 2686 int ret; 2687 2688 addr += (nr >> 3); 2689 mask = 1 << (7 - (nr & 0x07)); 2690 ret = mask & *addr; 2691 *addr &= ~mask; 2692 return ret; 2693 } 2694 2695 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2696 { 2697 int mask; 2698 2699 addr += (nr >> 3); 2700 mask = 1 << (7 - (nr & 0x07)); 2701 *addr ^= mask; 2702 } 2703 2704 /* 2705 * On-disk inode flags (f2fs_inode::i_flags) 2706 */ 2707 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2708 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2709 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2710 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2711 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2712 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2713 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */ 2714 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2715 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2716 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2717 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */ 2718 2719 /* Flags that should be inherited by new inodes from their parent. */ 2720 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \ 2721 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2722 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL) 2723 2724 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2725 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \ 2726 F2FS_CASEFOLD_FL)) 2727 2728 /* Flags that are appropriate for non-directories/regular files. */ 2729 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2730 2731 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2732 { 2733 if (S_ISDIR(mode)) 2734 return flags; 2735 else if (S_ISREG(mode)) 2736 return flags & F2FS_REG_FLMASK; 2737 else 2738 return flags & F2FS_OTHER_FLMASK; 2739 } 2740 2741 static inline void __mark_inode_dirty_flag(struct inode *inode, 2742 int flag, bool set) 2743 { 2744 switch (flag) { 2745 case FI_INLINE_XATTR: 2746 case FI_INLINE_DATA: 2747 case FI_INLINE_DENTRY: 2748 case FI_NEW_INODE: 2749 if (set) 2750 return; 2751 fallthrough; 2752 case FI_DATA_EXIST: 2753 case FI_INLINE_DOTS: 2754 case FI_PIN_FILE: 2755 case FI_COMPRESS_RELEASED: 2756 f2fs_mark_inode_dirty_sync(inode, true); 2757 } 2758 } 2759 2760 static inline void set_inode_flag(struct inode *inode, int flag) 2761 { 2762 set_bit(flag, F2FS_I(inode)->flags); 2763 __mark_inode_dirty_flag(inode, flag, true); 2764 } 2765 2766 static inline int is_inode_flag_set(struct inode *inode, int flag) 2767 { 2768 return test_bit(flag, F2FS_I(inode)->flags); 2769 } 2770 2771 static inline void clear_inode_flag(struct inode *inode, int flag) 2772 { 2773 clear_bit(flag, F2FS_I(inode)->flags); 2774 __mark_inode_dirty_flag(inode, flag, false); 2775 } 2776 2777 static inline bool f2fs_verity_in_progress(struct inode *inode) 2778 { 2779 return IS_ENABLED(CONFIG_FS_VERITY) && 2780 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS); 2781 } 2782 2783 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2784 { 2785 F2FS_I(inode)->i_acl_mode = mode; 2786 set_inode_flag(inode, FI_ACL_MODE); 2787 f2fs_mark_inode_dirty_sync(inode, false); 2788 } 2789 2790 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2791 { 2792 if (inc) 2793 inc_nlink(inode); 2794 else 2795 drop_nlink(inode); 2796 f2fs_mark_inode_dirty_sync(inode, true); 2797 } 2798 2799 static inline void f2fs_i_blocks_write(struct inode *inode, 2800 block_t diff, bool add, bool claim) 2801 { 2802 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2803 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2804 2805 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2806 if (add) { 2807 if (claim) 2808 dquot_claim_block(inode, diff); 2809 else 2810 dquot_alloc_block_nofail(inode, diff); 2811 } else { 2812 dquot_free_block(inode, diff); 2813 } 2814 2815 f2fs_mark_inode_dirty_sync(inode, true); 2816 if (clean || recover) 2817 set_inode_flag(inode, FI_AUTO_RECOVER); 2818 } 2819 2820 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2821 { 2822 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2823 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2824 2825 if (i_size_read(inode) == i_size) 2826 return; 2827 2828 i_size_write(inode, i_size); 2829 f2fs_mark_inode_dirty_sync(inode, true); 2830 if (clean || recover) 2831 set_inode_flag(inode, FI_AUTO_RECOVER); 2832 } 2833 2834 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2835 { 2836 F2FS_I(inode)->i_current_depth = depth; 2837 f2fs_mark_inode_dirty_sync(inode, true); 2838 } 2839 2840 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2841 unsigned int count) 2842 { 2843 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2844 f2fs_mark_inode_dirty_sync(inode, true); 2845 } 2846 2847 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2848 { 2849 F2FS_I(inode)->i_xattr_nid = xnid; 2850 f2fs_mark_inode_dirty_sync(inode, true); 2851 } 2852 2853 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2854 { 2855 F2FS_I(inode)->i_pino = pino; 2856 f2fs_mark_inode_dirty_sync(inode, true); 2857 } 2858 2859 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2860 { 2861 struct f2fs_inode_info *fi = F2FS_I(inode); 2862 2863 if (ri->i_inline & F2FS_INLINE_XATTR) 2864 set_bit(FI_INLINE_XATTR, fi->flags); 2865 if (ri->i_inline & F2FS_INLINE_DATA) 2866 set_bit(FI_INLINE_DATA, fi->flags); 2867 if (ri->i_inline & F2FS_INLINE_DENTRY) 2868 set_bit(FI_INLINE_DENTRY, fi->flags); 2869 if (ri->i_inline & F2FS_DATA_EXIST) 2870 set_bit(FI_DATA_EXIST, fi->flags); 2871 if (ri->i_inline & F2FS_INLINE_DOTS) 2872 set_bit(FI_INLINE_DOTS, fi->flags); 2873 if (ri->i_inline & F2FS_EXTRA_ATTR) 2874 set_bit(FI_EXTRA_ATTR, fi->flags); 2875 if (ri->i_inline & F2FS_PIN_FILE) 2876 set_bit(FI_PIN_FILE, fi->flags); 2877 if (ri->i_inline & F2FS_COMPRESS_RELEASED) 2878 set_bit(FI_COMPRESS_RELEASED, fi->flags); 2879 } 2880 2881 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2882 { 2883 ri->i_inline = 0; 2884 2885 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2886 ri->i_inline |= F2FS_INLINE_XATTR; 2887 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2888 ri->i_inline |= F2FS_INLINE_DATA; 2889 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2890 ri->i_inline |= F2FS_INLINE_DENTRY; 2891 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2892 ri->i_inline |= F2FS_DATA_EXIST; 2893 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2894 ri->i_inline |= F2FS_INLINE_DOTS; 2895 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2896 ri->i_inline |= F2FS_EXTRA_ATTR; 2897 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2898 ri->i_inline |= F2FS_PIN_FILE; 2899 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) 2900 ri->i_inline |= F2FS_COMPRESS_RELEASED; 2901 } 2902 2903 static inline int f2fs_has_extra_attr(struct inode *inode) 2904 { 2905 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2906 } 2907 2908 static inline int f2fs_has_inline_xattr(struct inode *inode) 2909 { 2910 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2911 } 2912 2913 static inline int f2fs_compressed_file(struct inode *inode) 2914 { 2915 return S_ISREG(inode->i_mode) && 2916 is_inode_flag_set(inode, FI_COMPRESSED_FILE); 2917 } 2918 2919 static inline bool f2fs_need_compress_data(struct inode *inode) 2920 { 2921 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode; 2922 2923 if (!f2fs_compressed_file(inode)) 2924 return false; 2925 2926 if (compress_mode == COMPR_MODE_FS) 2927 return true; 2928 else if (compress_mode == COMPR_MODE_USER && 2929 is_inode_flag_set(inode, FI_ENABLE_COMPRESS)) 2930 return true; 2931 2932 return false; 2933 } 2934 2935 static inline unsigned int addrs_per_inode(struct inode *inode) 2936 { 2937 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) - 2938 get_inline_xattr_addrs(inode); 2939 2940 if (!f2fs_compressed_file(inode)) 2941 return addrs; 2942 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size); 2943 } 2944 2945 static inline unsigned int addrs_per_block(struct inode *inode) 2946 { 2947 if (!f2fs_compressed_file(inode)) 2948 return DEF_ADDRS_PER_BLOCK; 2949 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size); 2950 } 2951 2952 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2953 { 2954 struct f2fs_inode *ri = F2FS_INODE(page); 2955 2956 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2957 get_inline_xattr_addrs(inode)]); 2958 } 2959 2960 static inline int inline_xattr_size(struct inode *inode) 2961 { 2962 if (f2fs_has_inline_xattr(inode)) 2963 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2964 return 0; 2965 } 2966 2967 static inline int f2fs_has_inline_data(struct inode *inode) 2968 { 2969 return is_inode_flag_set(inode, FI_INLINE_DATA); 2970 } 2971 2972 static inline int f2fs_exist_data(struct inode *inode) 2973 { 2974 return is_inode_flag_set(inode, FI_DATA_EXIST); 2975 } 2976 2977 static inline int f2fs_has_inline_dots(struct inode *inode) 2978 { 2979 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2980 } 2981 2982 static inline int f2fs_is_mmap_file(struct inode *inode) 2983 { 2984 return is_inode_flag_set(inode, FI_MMAP_FILE); 2985 } 2986 2987 static inline bool f2fs_is_pinned_file(struct inode *inode) 2988 { 2989 return is_inode_flag_set(inode, FI_PIN_FILE); 2990 } 2991 2992 static inline bool f2fs_is_atomic_file(struct inode *inode) 2993 { 2994 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2995 } 2996 2997 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2998 { 2999 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 3000 } 3001 3002 static inline bool f2fs_is_volatile_file(struct inode *inode) 3003 { 3004 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 3005 } 3006 3007 static inline bool f2fs_is_first_block_written(struct inode *inode) 3008 { 3009 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 3010 } 3011 3012 static inline bool f2fs_is_drop_cache(struct inode *inode) 3013 { 3014 return is_inode_flag_set(inode, FI_DROP_CACHE); 3015 } 3016 3017 static inline void *inline_data_addr(struct inode *inode, struct page *page) 3018 { 3019 struct f2fs_inode *ri = F2FS_INODE(page); 3020 int extra_size = get_extra_isize(inode); 3021 3022 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 3023 } 3024 3025 static inline int f2fs_has_inline_dentry(struct inode *inode) 3026 { 3027 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 3028 } 3029 3030 static inline int is_file(struct inode *inode, int type) 3031 { 3032 return F2FS_I(inode)->i_advise & type; 3033 } 3034 3035 static inline void set_file(struct inode *inode, int type) 3036 { 3037 F2FS_I(inode)->i_advise |= type; 3038 f2fs_mark_inode_dirty_sync(inode, true); 3039 } 3040 3041 static inline void clear_file(struct inode *inode, int type) 3042 { 3043 F2FS_I(inode)->i_advise &= ~type; 3044 f2fs_mark_inode_dirty_sync(inode, true); 3045 } 3046 3047 static inline bool f2fs_is_time_consistent(struct inode *inode) 3048 { 3049 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 3050 return false; 3051 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 3052 return false; 3053 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 3054 return false; 3055 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 3056 &F2FS_I(inode)->i_crtime)) 3057 return false; 3058 return true; 3059 } 3060 3061 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 3062 { 3063 bool ret; 3064 3065 if (dsync) { 3066 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3067 3068 spin_lock(&sbi->inode_lock[DIRTY_META]); 3069 ret = list_empty(&F2FS_I(inode)->gdirty_list); 3070 spin_unlock(&sbi->inode_lock[DIRTY_META]); 3071 return ret; 3072 } 3073 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 3074 file_keep_isize(inode) || 3075 i_size_read(inode) & ~PAGE_MASK) 3076 return false; 3077 3078 if (!f2fs_is_time_consistent(inode)) 3079 return false; 3080 3081 spin_lock(&F2FS_I(inode)->i_size_lock); 3082 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 3083 spin_unlock(&F2FS_I(inode)->i_size_lock); 3084 3085 return ret; 3086 } 3087 3088 static inline bool f2fs_readonly(struct super_block *sb) 3089 { 3090 return sb_rdonly(sb); 3091 } 3092 3093 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 3094 { 3095 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 3096 } 3097 3098 static inline bool is_dot_dotdot(const u8 *name, size_t len) 3099 { 3100 if (len == 1 && name[0] == '.') 3101 return true; 3102 3103 if (len == 2 && name[0] == '.' && name[1] == '.') 3104 return true; 3105 3106 return false; 3107 } 3108 3109 static inline bool f2fs_may_extent_tree(struct inode *inode) 3110 { 3111 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3112 3113 if (!test_opt(sbi, EXTENT_CACHE) || 3114 is_inode_flag_set(inode, FI_NO_EXTENT) || 3115 is_inode_flag_set(inode, FI_COMPRESSED_FILE)) 3116 return false; 3117 3118 /* 3119 * for recovered files during mount do not create extents 3120 * if shrinker is not registered. 3121 */ 3122 if (list_empty(&sbi->s_list)) 3123 return false; 3124 3125 return S_ISREG(inode->i_mode); 3126 } 3127 3128 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 3129 size_t size, gfp_t flags) 3130 { 3131 if (time_to_inject(sbi, FAULT_KMALLOC)) { 3132 f2fs_show_injection_info(sbi, FAULT_KMALLOC); 3133 return NULL; 3134 } 3135 3136 return kmalloc(size, flags); 3137 } 3138 3139 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 3140 size_t size, gfp_t flags) 3141 { 3142 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 3143 } 3144 3145 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 3146 size_t size, gfp_t flags) 3147 { 3148 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 3149 f2fs_show_injection_info(sbi, FAULT_KVMALLOC); 3150 return NULL; 3151 } 3152 3153 return kvmalloc(size, flags); 3154 } 3155 3156 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 3157 size_t size, gfp_t flags) 3158 { 3159 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 3160 } 3161 3162 static inline int get_extra_isize(struct inode *inode) 3163 { 3164 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 3165 } 3166 3167 static inline int get_inline_xattr_addrs(struct inode *inode) 3168 { 3169 return F2FS_I(inode)->i_inline_xattr_size; 3170 } 3171 3172 #define f2fs_get_inode_mode(i) \ 3173 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 3174 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 3175 3176 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 3177 (offsetof(struct f2fs_inode, i_extra_end) - \ 3178 offsetof(struct f2fs_inode, i_extra_isize)) \ 3179 3180 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 3181 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 3182 ((offsetof(typeof(*(f2fs_inode)), field) + \ 3183 sizeof((f2fs_inode)->field)) \ 3184 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 3185 3186 #define DEFAULT_IOSTAT_PERIOD_MS 3000 3187 #define MIN_IOSTAT_PERIOD_MS 100 3188 /* maximum period of iostat tracing is 1 day */ 3189 #define MAX_IOSTAT_PERIOD_MS 8640000 3190 3191 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 3192 { 3193 int i; 3194 3195 spin_lock(&sbi->iostat_lock); 3196 for (i = 0; i < NR_IO_TYPE; i++) { 3197 sbi->rw_iostat[i] = 0; 3198 sbi->prev_rw_iostat[i] = 0; 3199 } 3200 spin_unlock(&sbi->iostat_lock); 3201 } 3202 3203 extern void f2fs_record_iostat(struct f2fs_sb_info *sbi); 3204 3205 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 3206 enum iostat_type type, unsigned long long io_bytes) 3207 { 3208 if (!sbi->iostat_enable) 3209 return; 3210 spin_lock(&sbi->iostat_lock); 3211 sbi->rw_iostat[type] += io_bytes; 3212 3213 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 3214 sbi->rw_iostat[APP_BUFFERED_IO] = 3215 sbi->rw_iostat[APP_WRITE_IO] - 3216 sbi->rw_iostat[APP_DIRECT_IO]; 3217 3218 if (type == APP_READ_IO || type == APP_DIRECT_READ_IO) 3219 sbi->rw_iostat[APP_BUFFERED_READ_IO] = 3220 sbi->rw_iostat[APP_READ_IO] - 3221 sbi->rw_iostat[APP_DIRECT_READ_IO]; 3222 spin_unlock(&sbi->iostat_lock); 3223 3224 f2fs_record_iostat(sbi); 3225 } 3226 3227 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 3228 3229 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META) 3230 3231 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3232 block_t blkaddr, int type); 3233 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 3234 block_t blkaddr, int type) 3235 { 3236 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 3237 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.", 3238 blkaddr, type); 3239 f2fs_bug_on(sbi, 1); 3240 } 3241 } 3242 3243 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 3244 { 3245 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR || 3246 blkaddr == COMPRESS_ADDR) 3247 return false; 3248 return true; 3249 } 3250 3251 /* 3252 * file.c 3253 */ 3254 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 3255 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 3256 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock); 3257 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); 3258 int f2fs_truncate(struct inode *inode); 3259 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path, 3260 struct kstat *stat, u32 request_mask, unsigned int flags); 3261 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry, 3262 struct iattr *attr); 3263 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 3264 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 3265 int f2fs_precache_extents(struct inode *inode); 3266 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa); 3267 int f2fs_fileattr_set(struct user_namespace *mnt_userns, 3268 struct dentry *dentry, struct fileattr *fa); 3269 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 3270 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 3271 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 3272 int f2fs_pin_file_control(struct inode *inode, bool inc); 3273 3274 /* 3275 * inode.c 3276 */ 3277 void f2fs_set_inode_flags(struct inode *inode); 3278 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 3279 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 3280 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 3281 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 3282 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 3283 void f2fs_update_inode(struct inode *inode, struct page *node_page); 3284 void f2fs_update_inode_page(struct inode *inode); 3285 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 3286 void f2fs_evict_inode(struct inode *inode); 3287 void f2fs_handle_failed_inode(struct inode *inode); 3288 3289 /* 3290 * namei.c 3291 */ 3292 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 3293 bool hot, bool set); 3294 struct dentry *f2fs_get_parent(struct dentry *child); 3295 3296 /* 3297 * dir.c 3298 */ 3299 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 3300 int f2fs_init_casefolded_name(const struct inode *dir, 3301 struct f2fs_filename *fname); 3302 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname, 3303 int lookup, struct f2fs_filename *fname); 3304 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry, 3305 struct f2fs_filename *fname); 3306 void f2fs_free_filename(struct f2fs_filename *fname); 3307 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d, 3308 const struct f2fs_filename *fname, int *max_slots); 3309 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 3310 unsigned int start_pos, struct fscrypt_str *fstr); 3311 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 3312 struct f2fs_dentry_ptr *d); 3313 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 3314 const struct f2fs_filename *fname, struct page *dpage); 3315 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 3316 unsigned int current_depth); 3317 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 3318 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 3319 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 3320 const struct f2fs_filename *fname, 3321 struct page **res_page); 3322 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 3323 const struct qstr *child, struct page **res_page); 3324 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 3325 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 3326 struct page **page); 3327 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 3328 struct page *page, struct inode *inode); 3329 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage, 3330 const struct f2fs_filename *fname); 3331 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 3332 const struct fscrypt_str *name, f2fs_hash_t name_hash, 3333 unsigned int bit_pos); 3334 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname, 3335 struct inode *inode, nid_t ino, umode_t mode); 3336 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname, 3337 struct inode *inode, nid_t ino, umode_t mode); 3338 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 3339 struct inode *inode, nid_t ino, umode_t mode); 3340 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 3341 struct inode *dir, struct inode *inode); 3342 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 3343 bool f2fs_empty_dir(struct inode *dir); 3344 3345 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 3346 { 3347 if (fscrypt_is_nokey_name(dentry)) 3348 return -ENOKEY; 3349 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 3350 inode, inode->i_ino, inode->i_mode); 3351 } 3352 3353 /* 3354 * super.c 3355 */ 3356 int f2fs_inode_dirtied(struct inode *inode, bool sync); 3357 void f2fs_inode_synced(struct inode *inode); 3358 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 3359 int f2fs_quota_sync(struct super_block *sb, int type); 3360 loff_t max_file_blocks(struct inode *inode); 3361 void f2fs_quota_off_umount(struct super_block *sb); 3362 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 3363 int f2fs_sync_fs(struct super_block *sb, int sync); 3364 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 3365 3366 /* 3367 * hash.c 3368 */ 3369 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname); 3370 3371 /* 3372 * node.c 3373 */ 3374 struct node_info; 3375 3376 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); 3377 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); 3378 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); 3379 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); 3380 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); 3381 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); 3382 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); 3383 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); 3384 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); 3385 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 3386 struct node_info *ni); 3387 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); 3388 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); 3389 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); 3390 int f2fs_truncate_xattr_node(struct inode *inode); 3391 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 3392 unsigned int seq_id); 3393 int f2fs_remove_inode_page(struct inode *inode); 3394 struct page *f2fs_new_inode_page(struct inode *inode); 3395 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); 3396 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); 3397 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); 3398 struct page *f2fs_get_node_page_ra(struct page *parent, int start); 3399 int f2fs_move_node_page(struct page *node_page, int gc_type); 3400 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi); 3401 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 3402 struct writeback_control *wbc, bool atomic, 3403 unsigned int *seq_id); 3404 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 3405 struct writeback_control *wbc, 3406 bool do_balance, enum iostat_type io_type); 3407 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); 3408 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); 3409 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); 3410 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); 3411 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); 3412 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page); 3413 int f2fs_recover_xattr_data(struct inode *inode, struct page *page); 3414 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); 3415 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 3416 unsigned int segno, struct f2fs_summary_block *sum); 3417 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3418 int f2fs_build_node_manager(struct f2fs_sb_info *sbi); 3419 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); 3420 int __init f2fs_create_node_manager_caches(void); 3421 void f2fs_destroy_node_manager_caches(void); 3422 3423 /* 3424 * segment.c 3425 */ 3426 bool f2fs_need_SSR(struct f2fs_sb_info *sbi); 3427 void f2fs_register_inmem_page(struct inode *inode, struct page *page); 3428 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); 3429 void f2fs_drop_inmem_pages(struct inode *inode); 3430 void f2fs_drop_inmem_page(struct inode *inode, struct page *page); 3431 int f2fs_commit_inmem_pages(struct inode *inode); 3432 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); 3433 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg); 3434 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); 3435 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); 3436 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); 3437 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); 3438 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); 3439 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); 3440 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); 3441 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); 3442 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); 3443 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, 3444 struct cp_control *cpc); 3445 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); 3446 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi); 3447 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable); 3448 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); 3449 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); 3450 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno); 3451 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi); 3452 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi); 3453 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi); 3454 void f2fs_get_new_segment(struct f2fs_sb_info *sbi, 3455 unsigned int *newseg, bool new_sec, int dir); 3456 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type, 3457 unsigned int start, unsigned int end); 3458 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force); 3459 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3460 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3461 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3462 struct cp_control *cpc); 3463 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3464 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3465 block_t blk_addr); 3466 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3467 enum iostat_type io_type); 3468 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3469 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3470 struct f2fs_io_info *fio); 3471 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3472 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3473 block_t old_blkaddr, block_t new_blkaddr, 3474 bool recover_curseg, bool recover_newaddr, 3475 bool from_gc); 3476 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3477 block_t old_addr, block_t new_addr, 3478 unsigned char version, bool recover_curseg, 3479 bool recover_newaddr); 3480 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3481 block_t old_blkaddr, block_t *new_blkaddr, 3482 struct f2fs_summary *sum, int type, 3483 struct f2fs_io_info *fio); 3484 void f2fs_wait_on_page_writeback(struct page *page, 3485 enum page_type type, bool ordered, bool locked); 3486 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3487 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3488 block_t len); 3489 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3490 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3491 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3492 unsigned int val, int alloc); 3493 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3494 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi); 3495 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi); 3496 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3497 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3498 int __init f2fs_create_segment_manager_caches(void); 3499 void f2fs_destroy_segment_manager_caches(void); 3500 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3501 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3502 enum page_type type, enum temp_type temp); 3503 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi, 3504 unsigned int segno); 3505 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi, 3506 unsigned int segno); 3507 3508 /* 3509 * checkpoint.c 3510 */ 3511 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3512 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3513 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3514 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index); 3515 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3516 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3517 block_t blkaddr, int type); 3518 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3519 int type, bool sync); 3520 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3521 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3522 long nr_to_write, enum iostat_type io_type); 3523 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3524 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3525 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3526 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3527 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3528 unsigned int devidx, int type); 3529 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3530 unsigned int devidx, int type); 3531 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3532 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3533 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3534 void f2fs_add_orphan_inode(struct inode *inode); 3535 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3536 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3537 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3538 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3539 void f2fs_remove_dirty_inode(struct inode *inode); 3540 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3541 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type); 3542 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi); 3543 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3544 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3545 int __init f2fs_create_checkpoint_caches(void); 3546 void f2fs_destroy_checkpoint_caches(void); 3547 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi); 3548 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi); 3549 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi); 3550 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi); 3551 3552 /* 3553 * data.c 3554 */ 3555 int __init f2fs_init_bioset(void); 3556 void f2fs_destroy_bioset(void); 3557 int f2fs_init_bio_entry_cache(void); 3558 void f2fs_destroy_bio_entry_cache(void); 3559 void f2fs_submit_bio(struct f2fs_sb_info *sbi, 3560 struct bio *bio, enum page_type type); 3561 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3562 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3563 struct inode *inode, struct page *page, 3564 nid_t ino, enum page_type type); 3565 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi, 3566 struct bio **bio, struct page *page); 3567 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3568 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3569 int f2fs_merge_page_bio(struct f2fs_io_info *fio); 3570 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3571 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3572 block_t blk_addr, struct bio *bio); 3573 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3574 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3575 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3576 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3577 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3578 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3579 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3580 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3581 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3582 int op_flags, bool for_write); 3583 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3584 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3585 bool for_write); 3586 struct page *f2fs_get_new_data_page(struct inode *inode, 3587 struct page *ipage, pgoff_t index, bool new_i_size); 3588 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3589 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3590 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3591 int create, int flag); 3592 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3593 u64 start, u64 len); 3594 int f2fs_encrypt_one_page(struct f2fs_io_info *fio); 3595 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3596 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3597 int f2fs_write_single_data_page(struct page *page, int *submitted, 3598 struct bio **bio, sector_t *last_block, 3599 struct writeback_control *wbc, 3600 enum iostat_type io_type, 3601 int compr_blocks, bool allow_balance); 3602 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3603 unsigned int length); 3604 int f2fs_release_page(struct page *page, gfp_t wait); 3605 #ifdef CONFIG_MIGRATION 3606 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3607 struct page *page, enum migrate_mode mode); 3608 #endif 3609 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3610 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3611 int f2fs_init_post_read_processing(void); 3612 void f2fs_destroy_post_read_processing(void); 3613 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi); 3614 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi); 3615 3616 /* 3617 * gc.c 3618 */ 3619 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3620 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3621 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3622 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force, 3623 unsigned int segno); 3624 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3625 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count); 3626 int __init f2fs_create_garbage_collection_cache(void); 3627 void f2fs_destroy_garbage_collection_cache(void); 3628 3629 /* 3630 * recovery.c 3631 */ 3632 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3633 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3634 int __init f2fs_create_recovery_cache(void); 3635 void f2fs_destroy_recovery_cache(void); 3636 3637 /* 3638 * debug.c 3639 */ 3640 #ifdef CONFIG_F2FS_STAT_FS 3641 struct f2fs_stat_info { 3642 struct list_head stat_list; 3643 struct f2fs_sb_info *sbi; 3644 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3645 int main_area_segs, main_area_sections, main_area_zones; 3646 unsigned long long hit_largest, hit_cached, hit_rbtree; 3647 unsigned long long hit_total, total_ext; 3648 int ext_tree, zombie_tree, ext_node; 3649 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3650 int ndirty_data, ndirty_qdata; 3651 int inmem_pages; 3652 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3653 int nats, dirty_nats, sits, dirty_sits; 3654 int free_nids, avail_nids, alloc_nids; 3655 int total_count, utilization; 3656 int bg_gc, nr_wb_cp_data, nr_wb_data; 3657 int nr_rd_data, nr_rd_node, nr_rd_meta; 3658 int nr_dio_read, nr_dio_write; 3659 unsigned int io_skip_bggc, other_skip_bggc; 3660 int nr_flushing, nr_flushed, flush_list_empty; 3661 int nr_discarding, nr_discarded; 3662 int nr_discard_cmd; 3663 unsigned int undiscard_blks; 3664 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt; 3665 unsigned int cur_ckpt_time, peak_ckpt_time; 3666 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3667 int compr_inode; 3668 unsigned long long compr_blocks; 3669 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3670 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3671 unsigned int bimodal, avg_vblocks; 3672 int util_free, util_valid, util_invalid; 3673 int rsvd_segs, overp_segs; 3674 int dirty_count, node_pages, meta_pages; 3675 int prefree_count, call_count, cp_count, bg_cp_count; 3676 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3677 int bg_node_segs, bg_data_segs; 3678 int tot_blks, data_blks, node_blks; 3679 int bg_data_blks, bg_node_blks; 3680 unsigned long long skipped_atomic_files[2]; 3681 int curseg[NR_CURSEG_TYPE]; 3682 int cursec[NR_CURSEG_TYPE]; 3683 int curzone[NR_CURSEG_TYPE]; 3684 unsigned int dirty_seg[NR_CURSEG_TYPE]; 3685 unsigned int full_seg[NR_CURSEG_TYPE]; 3686 unsigned int valid_blks[NR_CURSEG_TYPE]; 3687 3688 unsigned int meta_count[META_MAX]; 3689 unsigned int segment_count[2]; 3690 unsigned int block_count[2]; 3691 unsigned int inplace_count; 3692 unsigned long long base_mem, cache_mem, page_mem; 3693 }; 3694 3695 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3696 { 3697 return (struct f2fs_stat_info *)sbi->stat_info; 3698 } 3699 3700 #define stat_inc_cp_count(si) ((si)->cp_count++) 3701 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3702 #define stat_inc_call_count(si) ((si)->call_count++) 3703 #define stat_inc_bggc_count(si) ((si)->bg_gc++) 3704 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3705 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3706 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3707 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3708 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3709 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3710 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3711 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3712 #define stat_inc_inline_xattr(inode) \ 3713 do { \ 3714 if (f2fs_has_inline_xattr(inode)) \ 3715 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3716 } while (0) 3717 #define stat_dec_inline_xattr(inode) \ 3718 do { \ 3719 if (f2fs_has_inline_xattr(inode)) \ 3720 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3721 } while (0) 3722 #define stat_inc_inline_inode(inode) \ 3723 do { \ 3724 if (f2fs_has_inline_data(inode)) \ 3725 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3726 } while (0) 3727 #define stat_dec_inline_inode(inode) \ 3728 do { \ 3729 if (f2fs_has_inline_data(inode)) \ 3730 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3731 } while (0) 3732 #define stat_inc_inline_dir(inode) \ 3733 do { \ 3734 if (f2fs_has_inline_dentry(inode)) \ 3735 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3736 } while (0) 3737 #define stat_dec_inline_dir(inode) \ 3738 do { \ 3739 if (f2fs_has_inline_dentry(inode)) \ 3740 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3741 } while (0) 3742 #define stat_inc_compr_inode(inode) \ 3743 do { \ 3744 if (f2fs_compressed_file(inode)) \ 3745 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \ 3746 } while (0) 3747 #define stat_dec_compr_inode(inode) \ 3748 do { \ 3749 if (f2fs_compressed_file(inode)) \ 3750 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \ 3751 } while (0) 3752 #define stat_add_compr_blocks(inode, blocks) \ 3753 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3754 #define stat_sub_compr_blocks(inode, blocks) \ 3755 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks)) 3756 #define stat_inc_meta_count(sbi, blkaddr) \ 3757 do { \ 3758 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3759 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3760 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3761 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3762 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3763 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3764 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3765 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3766 } while (0) 3767 #define stat_inc_seg_type(sbi, curseg) \ 3768 ((sbi)->segment_count[(curseg)->alloc_type]++) 3769 #define stat_inc_block_count(sbi, curseg) \ 3770 ((sbi)->block_count[(curseg)->alloc_type]++) 3771 #define stat_inc_inplace_blocks(sbi) \ 3772 (atomic_inc(&(sbi)->inplace_count)) 3773 #define stat_update_max_atomic_write(inode) \ 3774 do { \ 3775 int cur = F2FS_I_SB(inode)->atomic_files; \ 3776 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3777 if (cur > max) \ 3778 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3779 } while (0) 3780 #define stat_inc_volatile_write(inode) \ 3781 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3782 #define stat_dec_volatile_write(inode) \ 3783 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3784 #define stat_update_max_volatile_write(inode) \ 3785 do { \ 3786 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3787 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3788 if (cur > max) \ 3789 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3790 } while (0) 3791 #define stat_inc_seg_count(sbi, type, gc_type) \ 3792 do { \ 3793 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3794 si->tot_segs++; \ 3795 if ((type) == SUM_TYPE_DATA) { \ 3796 si->data_segs++; \ 3797 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3798 } else { \ 3799 si->node_segs++; \ 3800 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3801 } \ 3802 } while (0) 3803 3804 #define stat_inc_tot_blk_count(si, blks) \ 3805 ((si)->tot_blks += (blks)) 3806 3807 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3808 do { \ 3809 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3810 stat_inc_tot_blk_count(si, blks); \ 3811 si->data_blks += (blks); \ 3812 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3813 } while (0) 3814 3815 #define stat_inc_node_blk_count(sbi, blks, gc_type) \ 3816 do { \ 3817 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3818 stat_inc_tot_blk_count(si, blks); \ 3819 si->node_blks += (blks); \ 3820 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3821 } while (0) 3822 3823 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3824 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3825 void __init f2fs_create_root_stats(void); 3826 void f2fs_destroy_root_stats(void); 3827 void f2fs_update_sit_info(struct f2fs_sb_info *sbi); 3828 #else 3829 #define stat_inc_cp_count(si) do { } while (0) 3830 #define stat_inc_bg_cp_count(si) do { } while (0) 3831 #define stat_inc_call_count(si) do { } while (0) 3832 #define stat_inc_bggc_count(si) do { } while (0) 3833 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3834 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3835 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3836 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3837 #define stat_inc_total_hit(sbi) do { } while (0) 3838 #define stat_inc_rbtree_node_hit(sbi) do { } while (0) 3839 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3840 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3841 #define stat_inc_inline_xattr(inode) do { } while (0) 3842 #define stat_dec_inline_xattr(inode) do { } while (0) 3843 #define stat_inc_inline_inode(inode) do { } while (0) 3844 #define stat_dec_inline_inode(inode) do { } while (0) 3845 #define stat_inc_inline_dir(inode) do { } while (0) 3846 #define stat_dec_inline_dir(inode) do { } while (0) 3847 #define stat_inc_compr_inode(inode) do { } while (0) 3848 #define stat_dec_compr_inode(inode) do { } while (0) 3849 #define stat_add_compr_blocks(inode, blocks) do { } while (0) 3850 #define stat_sub_compr_blocks(inode, blocks) do { } while (0) 3851 #define stat_update_max_atomic_write(inode) do { } while (0) 3852 #define stat_inc_volatile_write(inode) do { } while (0) 3853 #define stat_dec_volatile_write(inode) do { } while (0) 3854 #define stat_update_max_volatile_write(inode) do { } while (0) 3855 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3856 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3857 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3858 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3859 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3860 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3861 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3862 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3863 3864 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3865 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3866 static inline void __init f2fs_create_root_stats(void) { } 3867 static inline void f2fs_destroy_root_stats(void) { } 3868 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {} 3869 #endif 3870 3871 extern const struct file_operations f2fs_dir_operations; 3872 extern const struct file_operations f2fs_file_operations; 3873 extern const struct inode_operations f2fs_file_inode_operations; 3874 extern const struct address_space_operations f2fs_dblock_aops; 3875 extern const struct address_space_operations f2fs_node_aops; 3876 extern const struct address_space_operations f2fs_meta_aops; 3877 extern const struct inode_operations f2fs_dir_inode_operations; 3878 extern const struct inode_operations f2fs_symlink_inode_operations; 3879 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3880 extern const struct inode_operations f2fs_special_inode_operations; 3881 extern struct kmem_cache *f2fs_inode_entry_slab; 3882 3883 /* 3884 * inline.c 3885 */ 3886 bool f2fs_may_inline_data(struct inode *inode); 3887 bool f2fs_may_inline_dentry(struct inode *inode); 3888 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3889 void f2fs_truncate_inline_inode(struct inode *inode, 3890 struct page *ipage, u64 from); 3891 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3892 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3893 int f2fs_convert_inline_inode(struct inode *inode); 3894 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry); 3895 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3896 int f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3897 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3898 const struct f2fs_filename *fname, 3899 struct page **res_page); 3900 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3901 struct page *ipage); 3902 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname, 3903 struct inode *inode, nid_t ino, umode_t mode); 3904 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3905 struct page *page, struct inode *dir, 3906 struct inode *inode); 3907 bool f2fs_empty_inline_dir(struct inode *dir); 3908 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3909 struct fscrypt_str *fstr); 3910 int f2fs_inline_data_fiemap(struct inode *inode, 3911 struct fiemap_extent_info *fieinfo, 3912 __u64 start, __u64 len); 3913 3914 /* 3915 * shrinker.c 3916 */ 3917 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3918 struct shrink_control *sc); 3919 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3920 struct shrink_control *sc); 3921 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3922 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3923 3924 /* 3925 * extent_cache.c 3926 */ 3927 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3928 struct rb_entry *cached_re, unsigned int ofs); 3929 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi, 3930 struct rb_root_cached *root, 3931 struct rb_node **parent, 3932 unsigned long long key, bool *left_most); 3933 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3934 struct rb_root_cached *root, 3935 struct rb_node **parent, 3936 unsigned int ofs, bool *leftmost); 3937 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3938 struct rb_entry *cached_re, unsigned int ofs, 3939 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3940 struct rb_node ***insert_p, struct rb_node **insert_parent, 3941 bool force, bool *leftmost); 3942 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3943 struct rb_root_cached *root, bool check_key); 3944 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3945 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage); 3946 void f2fs_drop_extent_tree(struct inode *inode); 3947 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3948 void f2fs_destroy_extent_tree(struct inode *inode); 3949 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3950 struct extent_info *ei); 3951 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3952 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3953 pgoff_t fofs, block_t blkaddr, unsigned int len); 3954 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3955 int __init f2fs_create_extent_cache(void); 3956 void f2fs_destroy_extent_cache(void); 3957 3958 /* 3959 * sysfs.c 3960 */ 3961 int __init f2fs_init_sysfs(void); 3962 void f2fs_exit_sysfs(void); 3963 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3964 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3965 3966 /* verity.c */ 3967 extern const struct fsverity_operations f2fs_verityops; 3968 3969 /* 3970 * crypto support 3971 */ 3972 static inline bool f2fs_encrypted_file(struct inode *inode) 3973 { 3974 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode); 3975 } 3976 3977 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3978 { 3979 #ifdef CONFIG_FS_ENCRYPTION 3980 file_set_encrypt(inode); 3981 f2fs_set_inode_flags(inode); 3982 #endif 3983 } 3984 3985 /* 3986 * Returns true if the reads of the inode's data need to undergo some 3987 * postprocessing step, like decryption or authenticity verification. 3988 */ 3989 static inline bool f2fs_post_read_required(struct inode *inode) 3990 { 3991 return f2fs_encrypted_file(inode) || fsverity_active(inode) || 3992 f2fs_compressed_file(inode); 3993 } 3994 3995 /* 3996 * compress.c 3997 */ 3998 #ifdef CONFIG_F2FS_FS_COMPRESSION 3999 bool f2fs_is_compressed_page(struct page *page); 4000 struct page *f2fs_compress_control_page(struct page *page); 4001 int f2fs_prepare_compress_overwrite(struct inode *inode, 4002 struct page **pagep, pgoff_t index, void **fsdata); 4003 bool f2fs_compress_write_end(struct inode *inode, void *fsdata, 4004 pgoff_t index, unsigned copied); 4005 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock); 4006 void f2fs_compress_write_end_io(struct bio *bio, struct page *page); 4007 bool f2fs_is_compress_backend_ready(struct inode *inode); 4008 int f2fs_init_compress_mempool(void); 4009 void f2fs_destroy_compress_mempool(void); 4010 void f2fs_end_read_compressed_page(struct page *page, bool failed); 4011 bool f2fs_cluster_is_empty(struct compress_ctx *cc); 4012 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); 4013 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); 4014 int f2fs_write_multi_pages(struct compress_ctx *cc, 4015 int *submitted, 4016 struct writeback_control *wbc, 4017 enum iostat_type io_type); 4018 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index); 4019 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret, 4020 unsigned nr_pages, sector_t *last_block_in_bio, 4021 bool is_readahead, bool for_write); 4022 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc); 4023 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed); 4024 void f2fs_put_page_dic(struct page *page); 4025 int f2fs_init_compress_ctx(struct compress_ctx *cc); 4026 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse); 4027 void f2fs_init_compress_info(struct f2fs_sb_info *sbi); 4028 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi); 4029 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi); 4030 int __init f2fs_init_compress_cache(void); 4031 void f2fs_destroy_compress_cache(void); 4032 #define inc_compr_inode_stat(inode) \ 4033 do { \ 4034 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \ 4035 sbi->compr_new_inode++; \ 4036 } while (0) 4037 #define add_compr_block_stat(inode, blocks) \ 4038 do { \ 4039 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \ 4040 int diff = F2FS_I(inode)->i_cluster_size - blocks; \ 4041 sbi->compr_written_block += blocks; \ 4042 sbi->compr_saved_block += diff; \ 4043 } while (0) 4044 #else 4045 static inline bool f2fs_is_compressed_page(struct page *page) { return false; } 4046 static inline bool f2fs_is_compress_backend_ready(struct inode *inode) 4047 { 4048 if (!f2fs_compressed_file(inode)) 4049 return true; 4050 /* not support compression */ 4051 return false; 4052 } 4053 static inline struct page *f2fs_compress_control_page(struct page *page) 4054 { 4055 WARN_ON_ONCE(1); 4056 return ERR_PTR(-EINVAL); 4057 } 4058 static inline int f2fs_init_compress_mempool(void) { return 0; } 4059 static inline void f2fs_destroy_compress_mempool(void) { } 4060 static inline void f2fs_end_read_compressed_page(struct page *page, bool failed) 4061 { 4062 WARN_ON_ONCE(1); 4063 } 4064 static inline void f2fs_put_page_dic(struct page *page) 4065 { 4066 WARN_ON_ONCE(1); 4067 } 4068 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; } 4069 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { } 4070 static inline int __init f2fs_init_compress_cache(void) { return 0; } 4071 static inline void f2fs_destroy_compress_cache(void) { } 4072 #define inc_compr_inode_stat(inode) do { } while (0) 4073 #endif 4074 4075 static inline void set_compress_context(struct inode *inode) 4076 { 4077 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4078 4079 F2FS_I(inode)->i_compress_algorithm = 4080 F2FS_OPTION(sbi).compress_algorithm; 4081 F2FS_I(inode)->i_log_cluster_size = 4082 F2FS_OPTION(sbi).compress_log_size; 4083 F2FS_I(inode)->i_compress_flag = 4084 F2FS_OPTION(sbi).compress_chksum ? 4085 1 << COMPRESS_CHKSUM : 0; 4086 F2FS_I(inode)->i_cluster_size = 4087 1 << F2FS_I(inode)->i_log_cluster_size; 4088 if (F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 && 4089 F2FS_OPTION(sbi).compress_level) 4090 F2FS_I(inode)->i_compress_flag |= 4091 F2FS_OPTION(sbi).compress_level << 4092 COMPRESS_LEVEL_OFFSET; 4093 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL; 4094 set_inode_flag(inode, FI_COMPRESSED_FILE); 4095 stat_inc_compr_inode(inode); 4096 inc_compr_inode_stat(inode); 4097 f2fs_mark_inode_dirty_sync(inode, true); 4098 } 4099 4100 static inline bool f2fs_disable_compressed_file(struct inode *inode) 4101 { 4102 struct f2fs_inode_info *fi = F2FS_I(inode); 4103 4104 if (!f2fs_compressed_file(inode)) 4105 return true; 4106 if (S_ISREG(inode->i_mode) && 4107 (get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks))) 4108 return false; 4109 4110 fi->i_flags &= ~F2FS_COMPR_FL; 4111 stat_dec_compr_inode(inode); 4112 clear_inode_flag(inode, FI_COMPRESSED_FILE); 4113 f2fs_mark_inode_dirty_sync(inode, true); 4114 return true; 4115 } 4116 4117 #define F2FS_FEATURE_FUNCS(name, flagname) \ 4118 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 4119 { \ 4120 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 4121 } 4122 4123 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 4124 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 4125 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 4126 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 4127 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 4128 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 4129 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 4130 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 4131 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 4132 F2FS_FEATURE_FUNCS(verity, VERITY); 4133 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 4134 F2FS_FEATURE_FUNCS(casefold, CASEFOLD); 4135 F2FS_FEATURE_FUNCS(compression, COMPRESSION); 4136 F2FS_FEATURE_FUNCS(readonly, RO); 4137 4138 #ifdef CONFIG_BLK_DEV_ZONED 4139 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi, 4140 block_t blkaddr) 4141 { 4142 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 4143 4144 return test_bit(zno, FDEV(devi).blkz_seq); 4145 } 4146 #endif 4147 4148 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 4149 { 4150 return f2fs_sb_has_blkzoned(sbi); 4151 } 4152 4153 static inline bool f2fs_bdev_support_discard(struct block_device *bdev) 4154 { 4155 return blk_queue_discard(bdev_get_queue(bdev)) || 4156 bdev_is_zoned(bdev); 4157 } 4158 4159 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 4160 { 4161 int i; 4162 4163 if (!f2fs_is_multi_device(sbi)) 4164 return f2fs_bdev_support_discard(sbi->sb->s_bdev); 4165 4166 for (i = 0; i < sbi->s_ndevs; i++) 4167 if (f2fs_bdev_support_discard(FDEV(i).bdev)) 4168 return true; 4169 return false; 4170 } 4171 4172 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 4173 { 4174 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 4175 f2fs_hw_should_discard(sbi); 4176 } 4177 4178 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi) 4179 { 4180 int i; 4181 4182 if (!f2fs_is_multi_device(sbi)) 4183 return bdev_read_only(sbi->sb->s_bdev); 4184 4185 for (i = 0; i < sbi->s_ndevs; i++) 4186 if (bdev_read_only(FDEV(i).bdev)) 4187 return true; 4188 return false; 4189 } 4190 4191 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi) 4192 { 4193 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS; 4194 } 4195 4196 static inline bool f2fs_may_compress(struct inode *inode) 4197 { 4198 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) || 4199 f2fs_is_atomic_file(inode) || 4200 f2fs_is_volatile_file(inode)) 4201 return false; 4202 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode); 4203 } 4204 4205 static inline void f2fs_i_compr_blocks_update(struct inode *inode, 4206 u64 blocks, bool add) 4207 { 4208 int diff = F2FS_I(inode)->i_cluster_size - blocks; 4209 struct f2fs_inode_info *fi = F2FS_I(inode); 4210 4211 /* don't update i_compr_blocks if saved blocks were released */ 4212 if (!add && !atomic_read(&fi->i_compr_blocks)) 4213 return; 4214 4215 if (add) { 4216 atomic_add(diff, &fi->i_compr_blocks); 4217 stat_add_compr_blocks(inode, diff); 4218 } else { 4219 atomic_sub(diff, &fi->i_compr_blocks); 4220 stat_sub_compr_blocks(inode, diff); 4221 } 4222 f2fs_mark_inode_dirty_sync(inode, true); 4223 } 4224 4225 static inline int block_unaligned_IO(struct inode *inode, 4226 struct kiocb *iocb, struct iov_iter *iter) 4227 { 4228 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 4229 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 4230 loff_t offset = iocb->ki_pos; 4231 unsigned long align = offset | iov_iter_alignment(iter); 4232 4233 return align & blocksize_mask; 4234 } 4235 4236 static inline int allow_outplace_dio(struct inode *inode, 4237 struct kiocb *iocb, struct iov_iter *iter) 4238 { 4239 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4240 int rw = iov_iter_rw(iter); 4241 4242 return (f2fs_lfs_mode(sbi) && (rw == WRITE) && 4243 !block_unaligned_IO(inode, iocb, iter)); 4244 } 4245 4246 static inline bool f2fs_force_buffered_io(struct inode *inode, 4247 struct kiocb *iocb, struct iov_iter *iter) 4248 { 4249 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 4250 int rw = iov_iter_rw(iter); 4251 4252 if (f2fs_post_read_required(inode)) 4253 return true; 4254 if (f2fs_is_multi_device(sbi)) 4255 return true; 4256 /* 4257 * for blkzoned device, fallback direct IO to buffered IO, so 4258 * all IOs can be serialized by log-structured write. 4259 */ 4260 if (f2fs_sb_has_blkzoned(sbi)) 4261 return true; 4262 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) { 4263 if (block_unaligned_IO(inode, iocb, iter)) 4264 return true; 4265 if (F2FS_IO_ALIGNED(sbi)) 4266 return true; 4267 } 4268 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) 4269 return true; 4270 4271 return false; 4272 } 4273 4274 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx) 4275 { 4276 return fsverity_active(inode) && 4277 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE); 4278 } 4279 4280 #ifdef CONFIG_F2FS_FAULT_INJECTION 4281 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 4282 unsigned int type); 4283 #else 4284 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 4285 #endif 4286 4287 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 4288 { 4289 #ifdef CONFIG_QUOTA 4290 if (f2fs_sb_has_quota_ino(sbi)) 4291 return true; 4292 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 4293 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 4294 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 4295 return true; 4296 #endif 4297 return false; 4298 } 4299 4300 #define EFSBADCRC EBADMSG /* Bad CRC detected */ 4301 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ 4302 4303 #endif /* _LINUX_F2FS_H */ 4304