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 <crypto/hash.h> 26 27 #include <linux/fscrypt.h> 28 29 #ifdef CONFIG_F2FS_CHECK_FS 30 #define f2fs_bug_on(sbi, condition) BUG_ON(condition) 31 #else 32 #define f2fs_bug_on(sbi, condition) \ 33 do { \ 34 if (unlikely(condition)) { \ 35 WARN_ON(1); \ 36 set_sbi_flag(sbi, SBI_NEED_FSCK); \ 37 } \ 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_BIO, 47 FAULT_ALLOC_NID, 48 FAULT_ORPHAN, 49 FAULT_BLOCK, 50 FAULT_DIR_DEPTH, 51 FAULT_EVICT_INODE, 52 FAULT_TRUNCATE, 53 FAULT_READ_IO, 54 FAULT_CHECKPOINT, 55 FAULT_DISCARD, 56 FAULT_WRITE_IO, 57 FAULT_MAX, 58 }; 59 60 #ifdef CONFIG_F2FS_FAULT_INJECTION 61 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1) 62 63 struct f2fs_fault_info { 64 atomic_t inject_ops; 65 unsigned int inject_rate; 66 unsigned int inject_type; 67 }; 68 69 extern const char *f2fs_fault_name[FAULT_MAX]; 70 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) 71 #endif 72 73 /* 74 * For mount options 75 */ 76 #define F2FS_MOUNT_BG_GC 0x00000001 77 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 78 #define F2FS_MOUNT_DISCARD 0x00000004 79 #define F2FS_MOUNT_NOHEAP 0x00000008 80 #define F2FS_MOUNT_XATTR_USER 0x00000010 81 #define F2FS_MOUNT_POSIX_ACL 0x00000020 82 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 83 #define F2FS_MOUNT_INLINE_XATTR 0x00000080 84 #define F2FS_MOUNT_INLINE_DATA 0x00000100 85 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 86 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 87 #define F2FS_MOUNT_NOBARRIER 0x00000800 88 #define F2FS_MOUNT_FASTBOOT 0x00001000 89 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 90 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 91 #define F2FS_MOUNT_DATA_FLUSH 0x00008000 92 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 93 #define F2FS_MOUNT_ADAPTIVE 0x00020000 94 #define F2FS_MOUNT_LFS 0x00040000 95 #define F2FS_MOUNT_USRQUOTA 0x00080000 96 #define F2FS_MOUNT_GRPQUOTA 0x00100000 97 #define F2FS_MOUNT_PRJQUOTA 0x00200000 98 #define F2FS_MOUNT_QUOTA 0x00400000 99 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000 100 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000 101 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000 102 103 #define F2FS_OPTION(sbi) ((sbi)->mount_opt) 104 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) 105 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option) 106 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option) 107 108 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 109 typecheck(unsigned long long, b) && \ 110 ((long long)((a) - (b)) > 0)) 111 112 typedef u32 block_t; /* 113 * should not change u32, since it is the on-disk block 114 * address format, __le32. 115 */ 116 typedef u32 nid_t; 117 118 struct f2fs_mount_info { 119 unsigned int opt; 120 int write_io_size_bits; /* Write IO size bits */ 121 block_t root_reserved_blocks; /* root reserved blocks */ 122 kuid_t s_resuid; /* reserved blocks for uid */ 123 kgid_t s_resgid; /* reserved blocks for gid */ 124 int active_logs; /* # of active logs */ 125 int inline_xattr_size; /* inline xattr size */ 126 #ifdef CONFIG_F2FS_FAULT_INJECTION 127 struct f2fs_fault_info fault_info; /* For fault injection */ 128 #endif 129 #ifdef CONFIG_QUOTA 130 /* Names of quota files with journalled quota */ 131 char *s_qf_names[MAXQUOTAS]; 132 int s_jquota_fmt; /* Format of quota to use */ 133 #endif 134 /* For which write hints are passed down to block layer */ 135 int whint_mode; 136 int alloc_mode; /* segment allocation policy */ 137 int fsync_mode; /* fsync policy */ 138 bool test_dummy_encryption; /* test dummy encryption */ 139 }; 140 141 #define F2FS_FEATURE_ENCRYPT 0x0001 142 #define F2FS_FEATURE_BLKZONED 0x0002 143 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004 144 #define F2FS_FEATURE_EXTRA_ATTR 0x0008 145 #define F2FS_FEATURE_PRJQUOTA 0x0010 146 #define F2FS_FEATURE_INODE_CHKSUM 0x0020 147 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 148 #define F2FS_FEATURE_QUOTA_INO 0x0080 149 #define F2FS_FEATURE_INODE_CRTIME 0x0100 150 #define F2FS_FEATURE_LOST_FOUND 0x0200 151 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */ 152 #define F2FS_FEATURE_SB_CHKSUM 0x0800 153 154 #define __F2FS_HAS_FEATURE(raw_super, mask) \ 155 ((raw_super->feature & cpu_to_le32(mask)) != 0) 156 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask) 157 #define F2FS_SET_FEATURE(sbi, mask) \ 158 (sbi->raw_super->feature |= cpu_to_le32(mask)) 159 #define F2FS_CLEAR_FEATURE(sbi, mask) \ 160 (sbi->raw_super->feature &= ~cpu_to_le32(mask)) 161 162 /* 163 * Default values for user and/or group using reserved blocks 164 */ 165 #define F2FS_DEF_RESUID 0 166 #define F2FS_DEF_RESGID 0 167 168 /* 169 * For checkpoint manager 170 */ 171 enum { 172 NAT_BITMAP, 173 SIT_BITMAP 174 }; 175 176 #define CP_UMOUNT 0x00000001 177 #define CP_FASTBOOT 0x00000002 178 #define CP_SYNC 0x00000004 179 #define CP_RECOVERY 0x00000008 180 #define CP_DISCARD 0x00000010 181 #define CP_TRIMMED 0x00000020 182 #define CP_PAUSE 0x00000040 183 184 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) 185 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */ 186 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */ 187 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */ 188 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */ 189 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */ 190 #define DEF_CP_INTERVAL 60 /* 60 secs */ 191 #define DEF_IDLE_INTERVAL 5 /* 5 secs */ 192 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */ 193 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */ 194 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ 195 196 struct cp_control { 197 int reason; 198 __u64 trim_start; 199 __u64 trim_end; 200 __u64 trim_minlen; 201 }; 202 203 /* 204 * indicate meta/data type 205 */ 206 enum { 207 META_CP, 208 META_NAT, 209 META_SIT, 210 META_SSA, 211 META_MAX, 212 META_POR, 213 DATA_GENERIC, 214 META_GENERIC, 215 }; 216 217 /* for the list of ino */ 218 enum { 219 ORPHAN_INO, /* for orphan ino list */ 220 APPEND_INO, /* for append ino list */ 221 UPDATE_INO, /* for update ino list */ 222 TRANS_DIR_INO, /* for trasactions dir ino list */ 223 FLUSH_INO, /* for multiple device flushing */ 224 MAX_INO_ENTRY, /* max. list */ 225 }; 226 227 struct ino_entry { 228 struct list_head list; /* list head */ 229 nid_t ino; /* inode number */ 230 unsigned int dirty_device; /* dirty device bitmap */ 231 }; 232 233 /* for the list of inodes to be GCed */ 234 struct inode_entry { 235 struct list_head list; /* list head */ 236 struct inode *inode; /* vfs inode pointer */ 237 }; 238 239 struct fsync_node_entry { 240 struct list_head list; /* list head */ 241 struct page *page; /* warm node page pointer */ 242 unsigned int seq_id; /* sequence id */ 243 }; 244 245 /* for the bitmap indicate blocks to be discarded */ 246 struct discard_entry { 247 struct list_head list; /* list head */ 248 block_t start_blkaddr; /* start blockaddr of current segment */ 249 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ 250 }; 251 252 /* default discard granularity of inner discard thread, unit: block count */ 253 #define DEFAULT_DISCARD_GRANULARITY 16 254 255 /* max discard pend list number */ 256 #define MAX_PLIST_NUM 512 257 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ 258 (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) 259 260 enum { 261 D_PREP, /* initial */ 262 D_PARTIAL, /* partially submitted */ 263 D_SUBMIT, /* all submitted */ 264 D_DONE, /* finished */ 265 }; 266 267 struct discard_info { 268 block_t lstart; /* logical start address */ 269 block_t len; /* length */ 270 block_t start; /* actual start address in dev */ 271 }; 272 273 struct discard_cmd { 274 struct rb_node rb_node; /* rb node located in rb-tree */ 275 union { 276 struct { 277 block_t lstart; /* logical start address */ 278 block_t len; /* length */ 279 block_t start; /* actual start address in dev */ 280 }; 281 struct discard_info di; /* discard info */ 282 283 }; 284 struct list_head list; /* command list */ 285 struct completion wait; /* compleation */ 286 struct block_device *bdev; /* bdev */ 287 unsigned short ref; /* reference count */ 288 unsigned char state; /* state */ 289 unsigned char queued; /* queued discard */ 290 int error; /* bio error */ 291 spinlock_t lock; /* for state/bio_ref updating */ 292 unsigned short bio_ref; /* bio reference count */ 293 }; 294 295 enum { 296 DPOLICY_BG, 297 DPOLICY_FORCE, 298 DPOLICY_FSTRIM, 299 DPOLICY_UMOUNT, 300 MAX_DPOLICY, 301 }; 302 303 struct discard_policy { 304 int type; /* type of discard */ 305 unsigned int min_interval; /* used for candidates exist */ 306 unsigned int mid_interval; /* used for device busy */ 307 unsigned int max_interval; /* used for candidates not exist */ 308 unsigned int max_requests; /* # of discards issued per round */ 309 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ 310 bool io_aware; /* issue discard in idle time */ 311 bool sync; /* submit discard with REQ_SYNC flag */ 312 bool ordered; /* issue discard by lba order */ 313 unsigned int granularity; /* discard granularity */ 314 int timeout; /* discard timeout for put_super */ 315 }; 316 317 struct discard_cmd_control { 318 struct task_struct *f2fs_issue_discard; /* discard thread */ 319 struct list_head entry_list; /* 4KB discard entry list */ 320 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ 321 struct list_head wait_list; /* store on-flushing entries */ 322 struct list_head fstrim_list; /* in-flight discard from fstrim */ 323 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ 324 unsigned int discard_wake; /* to wake up discard thread */ 325 struct mutex cmd_lock; 326 unsigned int nr_discards; /* # of discards in the list */ 327 unsigned int max_discards; /* max. discards to be issued */ 328 unsigned int discard_granularity; /* discard granularity */ 329 unsigned int undiscard_blks; /* # of undiscard blocks */ 330 unsigned int next_pos; /* next discard position */ 331 atomic_t issued_discard; /* # of issued discard */ 332 atomic_t queued_discard; /* # of queued discard */ 333 atomic_t discard_cmd_cnt; /* # of cached cmd count */ 334 struct rb_root_cached root; /* root of discard rb-tree */ 335 bool rbtree_check; /* config for consistence check */ 336 }; 337 338 /* for the list of fsync inodes, used only during recovery */ 339 struct fsync_inode_entry { 340 struct list_head list; /* list head */ 341 struct inode *inode; /* vfs inode pointer */ 342 block_t blkaddr; /* block address locating the last fsync */ 343 block_t last_dentry; /* block address locating the last dentry */ 344 }; 345 346 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) 347 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) 348 349 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) 350 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) 351 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) 352 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) 353 354 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) 355 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) 356 357 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) 358 { 359 int before = nats_in_cursum(journal); 360 361 journal->n_nats = cpu_to_le16(before + i); 362 return before; 363 } 364 365 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) 366 { 367 int before = sits_in_cursum(journal); 368 369 journal->n_sits = cpu_to_le16(before + i); 370 return before; 371 } 372 373 static inline bool __has_cursum_space(struct f2fs_journal *journal, 374 int size, int type) 375 { 376 if (type == NAT_JOURNAL) 377 return size <= MAX_NAT_JENTRIES(journal); 378 return size <= MAX_SIT_JENTRIES(journal); 379 } 380 381 /* 382 * ioctl commands 383 */ 384 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS 385 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS 386 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION 387 388 #define F2FS_IOCTL_MAGIC 0xf5 389 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) 390 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) 391 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) 392 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) 393 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) 394 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32) 395 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) 396 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \ 397 struct f2fs_defragment) 398 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ 399 struct f2fs_move_range) 400 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ 401 struct f2fs_flush_device) 402 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \ 403 struct f2fs_gc_range) 404 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32) 405 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32) 406 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32) 407 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15) 408 409 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY 410 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY 411 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT 412 413 /* 414 * should be same as XFS_IOC_GOINGDOWN. 415 * Flags for going down operation used by FS_IOC_GOINGDOWN 416 */ 417 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ 418 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ 419 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ 420 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ 421 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ 422 #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */ 423 424 #if defined(__KERNEL__) && defined(CONFIG_COMPAT) 425 /* 426 * ioctl commands in 32 bit emulation 427 */ 428 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS 429 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS 430 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION 431 #endif 432 433 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 434 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 435 436 struct f2fs_gc_range { 437 u32 sync; 438 u64 start; 439 u64 len; 440 }; 441 442 struct f2fs_defragment { 443 u64 start; 444 u64 len; 445 }; 446 447 struct f2fs_move_range { 448 u32 dst_fd; /* destination fd */ 449 u64 pos_in; /* start position in src_fd */ 450 u64 pos_out; /* start position in dst_fd */ 451 u64 len; /* size to move */ 452 }; 453 454 struct f2fs_flush_device { 455 u32 dev_num; /* device number to flush */ 456 u32 segments; /* # of segments to flush */ 457 }; 458 459 /* for inline stuff */ 460 #define DEF_INLINE_RESERVED_SIZE 1 461 static inline int get_extra_isize(struct inode *inode); 462 static inline int get_inline_xattr_addrs(struct inode *inode); 463 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 464 (CUR_ADDRS_PER_INODE(inode) - \ 465 get_inline_xattr_addrs(inode) - \ 466 DEF_INLINE_RESERVED_SIZE)) 467 468 /* for inline dir */ 469 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 470 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 471 BITS_PER_BYTE + 1)) 472 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \ 473 BITS_PER_BYTE - 1) / BITS_PER_BYTE) 474 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 475 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 476 NR_INLINE_DENTRY(inode) + \ 477 INLINE_DENTRY_BITMAP_SIZE(inode))) 478 479 /* 480 * For INODE and NODE manager 481 */ 482 /* for directory operations */ 483 struct f2fs_dentry_ptr { 484 struct inode *inode; 485 void *bitmap; 486 struct f2fs_dir_entry *dentry; 487 __u8 (*filename)[F2FS_SLOT_LEN]; 488 int max; 489 int nr_bitmap; 490 }; 491 492 static inline void make_dentry_ptr_block(struct inode *inode, 493 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 494 { 495 d->inode = inode; 496 d->max = NR_DENTRY_IN_BLOCK; 497 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 498 d->bitmap = t->dentry_bitmap; 499 d->dentry = t->dentry; 500 d->filename = t->filename; 501 } 502 503 static inline void make_dentry_ptr_inline(struct inode *inode, 504 struct f2fs_dentry_ptr *d, void *t) 505 { 506 int entry_cnt = NR_INLINE_DENTRY(inode); 507 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 508 int reserved_size = INLINE_RESERVED_SIZE(inode); 509 510 d->inode = inode; 511 d->max = entry_cnt; 512 d->nr_bitmap = bitmap_size; 513 d->bitmap = t; 514 d->dentry = t + bitmap_size + reserved_size; 515 d->filename = t + bitmap_size + reserved_size + 516 SIZE_OF_DIR_ENTRY * entry_cnt; 517 } 518 519 /* 520 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 521 * as its node offset to distinguish from index node blocks. 522 * But some bits are used to mark the node block. 523 */ 524 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 525 >> OFFSET_BIT_SHIFT) 526 enum { 527 ALLOC_NODE, /* allocate a new node page if needed */ 528 LOOKUP_NODE, /* look up a node without readahead */ 529 LOOKUP_NODE_RA, /* 530 * look up a node with readahead called 531 * by get_data_block. 532 */ 533 }; 534 535 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 536 537 /* maximum retry quota flush count */ 538 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 539 540 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 541 542 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 543 544 /* for in-memory extent cache entry */ 545 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 546 547 /* number of extent info in extent cache we try to shrink */ 548 #define EXTENT_CACHE_SHRINK_NUMBER 128 549 550 struct rb_entry { 551 struct rb_node rb_node; /* rb node located in rb-tree */ 552 unsigned int ofs; /* start offset of the entry */ 553 unsigned int len; /* length of the entry */ 554 }; 555 556 struct extent_info { 557 unsigned int fofs; /* start offset in a file */ 558 unsigned int len; /* length of the extent */ 559 u32 blk; /* start block address of the extent */ 560 }; 561 562 struct extent_node { 563 struct rb_node rb_node; /* rb node located in rb-tree */ 564 struct extent_info ei; /* extent info */ 565 struct list_head list; /* node in global extent list of sbi */ 566 struct extent_tree *et; /* extent tree pointer */ 567 }; 568 569 struct extent_tree { 570 nid_t ino; /* inode number */ 571 struct rb_root_cached root; /* root of extent info rb-tree */ 572 struct extent_node *cached_en; /* recently accessed extent node */ 573 struct extent_info largest; /* largested extent info */ 574 struct list_head list; /* to be used by sbi->zombie_list */ 575 rwlock_t lock; /* protect extent info rb-tree */ 576 atomic_t node_cnt; /* # of extent node in rb-tree*/ 577 bool largest_updated; /* largest extent updated */ 578 }; 579 580 /* 581 * This structure is taken from ext4_map_blocks. 582 * 583 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 584 */ 585 #define F2FS_MAP_NEW (1 << BH_New) 586 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 587 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 588 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 589 F2FS_MAP_UNWRITTEN) 590 591 struct f2fs_map_blocks { 592 block_t m_pblk; 593 block_t m_lblk; 594 unsigned int m_len; 595 unsigned int m_flags; 596 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 597 pgoff_t *m_next_extent; /* point to next possible extent */ 598 int m_seg_type; 599 bool m_may_create; /* indicate it is from write path */ 600 }; 601 602 /* for flag in get_data_block */ 603 enum { 604 F2FS_GET_BLOCK_DEFAULT, 605 F2FS_GET_BLOCK_FIEMAP, 606 F2FS_GET_BLOCK_BMAP, 607 F2FS_GET_BLOCK_DIO, 608 F2FS_GET_BLOCK_PRE_DIO, 609 F2FS_GET_BLOCK_PRE_AIO, 610 F2FS_GET_BLOCK_PRECACHE, 611 }; 612 613 /* 614 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 615 */ 616 #define FADVISE_COLD_BIT 0x01 617 #define FADVISE_LOST_PINO_BIT 0x02 618 #define FADVISE_ENCRYPT_BIT 0x04 619 #define FADVISE_ENC_NAME_BIT 0x08 620 #define FADVISE_KEEP_SIZE_BIT 0x10 621 #define FADVISE_HOT_BIT 0x20 622 #define FADVISE_VERITY_BIT 0x40 /* reserved */ 623 624 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 625 626 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 627 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 628 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 629 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 630 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 631 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 632 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 633 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 634 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) 635 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 636 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 637 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 638 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 639 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 640 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 641 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 642 643 #define DEF_DIR_LEVEL 0 644 645 enum { 646 GC_FAILURE_PIN, 647 GC_FAILURE_ATOMIC, 648 MAX_GC_FAILURE 649 }; 650 651 struct f2fs_inode_info { 652 struct inode vfs_inode; /* serve a vfs inode */ 653 unsigned long i_flags; /* keep an inode flags for ioctl */ 654 unsigned char i_advise; /* use to give file attribute hints */ 655 unsigned char i_dir_level; /* use for dentry level for large dir */ 656 unsigned int i_current_depth; /* only for directory depth */ 657 /* for gc failure statistic */ 658 unsigned int i_gc_failures[MAX_GC_FAILURE]; 659 unsigned int i_pino; /* parent inode number */ 660 umode_t i_acl_mode; /* keep file acl mode temporarily */ 661 662 /* Use below internally in f2fs*/ 663 unsigned long flags; /* use to pass per-file flags */ 664 struct rw_semaphore i_sem; /* protect fi info */ 665 atomic_t dirty_pages; /* # of dirty pages */ 666 f2fs_hash_t chash; /* hash value of given file name */ 667 unsigned int clevel; /* maximum level of given file name */ 668 struct task_struct *task; /* lookup and create consistency */ 669 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 670 nid_t i_xattr_nid; /* node id that contains xattrs */ 671 loff_t last_disk_size; /* lastly written file size */ 672 673 #ifdef CONFIG_QUOTA 674 struct dquot *i_dquot[MAXQUOTAS]; 675 676 /* quota space reservation, managed internally by quota code */ 677 qsize_t i_reserved_quota; 678 #endif 679 struct list_head dirty_list; /* dirty list for dirs and files */ 680 struct list_head gdirty_list; /* linked in global dirty list */ 681 struct list_head inmem_ilist; /* list for inmem inodes */ 682 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 683 struct task_struct *inmem_task; /* store inmemory task */ 684 struct mutex inmem_lock; /* lock for inmemory pages */ 685 struct extent_tree *extent_tree; /* cached extent_tree entry */ 686 687 /* avoid racing between foreground op and gc */ 688 struct rw_semaphore i_gc_rwsem[2]; 689 struct rw_semaphore i_mmap_sem; 690 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 691 692 int i_extra_isize; /* size of extra space located in i_addr */ 693 kprojid_t i_projid; /* id for project quota */ 694 int i_inline_xattr_size; /* inline xattr size */ 695 struct timespec64 i_crtime; /* inode creation time */ 696 struct timespec64 i_disk_time[4];/* inode disk times */ 697 }; 698 699 static inline void get_extent_info(struct extent_info *ext, 700 struct f2fs_extent *i_ext) 701 { 702 ext->fofs = le32_to_cpu(i_ext->fofs); 703 ext->blk = le32_to_cpu(i_ext->blk); 704 ext->len = le32_to_cpu(i_ext->len); 705 } 706 707 static inline void set_raw_extent(struct extent_info *ext, 708 struct f2fs_extent *i_ext) 709 { 710 i_ext->fofs = cpu_to_le32(ext->fofs); 711 i_ext->blk = cpu_to_le32(ext->blk); 712 i_ext->len = cpu_to_le32(ext->len); 713 } 714 715 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 716 u32 blk, unsigned int len) 717 { 718 ei->fofs = fofs; 719 ei->blk = blk; 720 ei->len = len; 721 } 722 723 static inline bool __is_discard_mergeable(struct discard_info *back, 724 struct discard_info *front, unsigned int max_len) 725 { 726 return (back->lstart + back->len == front->lstart) && 727 (back->len + front->len <= max_len); 728 } 729 730 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 731 struct discard_info *back, unsigned int max_len) 732 { 733 return __is_discard_mergeable(back, cur, max_len); 734 } 735 736 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 737 struct discard_info *front, unsigned int max_len) 738 { 739 return __is_discard_mergeable(cur, front, max_len); 740 } 741 742 static inline bool __is_extent_mergeable(struct extent_info *back, 743 struct extent_info *front) 744 { 745 return (back->fofs + back->len == front->fofs && 746 back->blk + back->len == front->blk); 747 } 748 749 static inline bool __is_back_mergeable(struct extent_info *cur, 750 struct extent_info *back) 751 { 752 return __is_extent_mergeable(back, cur); 753 } 754 755 static inline bool __is_front_mergeable(struct extent_info *cur, 756 struct extent_info *front) 757 { 758 return __is_extent_mergeable(cur, front); 759 } 760 761 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 762 static inline void __try_update_largest_extent(struct extent_tree *et, 763 struct extent_node *en) 764 { 765 if (en->ei.len > et->largest.len) { 766 et->largest = en->ei; 767 et->largest_updated = true; 768 } 769 } 770 771 /* 772 * For free nid management 773 */ 774 enum nid_state { 775 FREE_NID, /* newly added to free nid list */ 776 PREALLOC_NID, /* it is preallocated */ 777 MAX_NID_STATE, 778 }; 779 780 struct f2fs_nm_info { 781 block_t nat_blkaddr; /* base disk address of NAT */ 782 nid_t max_nid; /* maximum possible node ids */ 783 nid_t available_nids; /* # of available node ids */ 784 nid_t next_scan_nid; /* the next nid to be scanned */ 785 unsigned int ram_thresh; /* control the memory footprint */ 786 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 787 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 788 789 /* NAT cache management */ 790 struct radix_tree_root nat_root;/* root of the nat entry cache */ 791 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 792 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ 793 struct list_head nat_entries; /* cached nat entry list (clean) */ 794 spinlock_t nat_list_lock; /* protect clean nat entry list */ 795 unsigned int nat_cnt; /* the # of cached nat entries */ 796 unsigned int dirty_nat_cnt; /* total num of nat entries in set */ 797 unsigned int nat_blocks; /* # of nat blocks */ 798 799 /* free node ids management */ 800 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 801 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 802 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 803 spinlock_t nid_list_lock; /* protect nid lists ops */ 804 struct mutex build_lock; /* lock for build free nids */ 805 unsigned char **free_nid_bitmap; 806 unsigned char *nat_block_bitmap; 807 unsigned short *free_nid_count; /* free nid count of NAT block */ 808 809 /* for checkpoint */ 810 char *nat_bitmap; /* NAT bitmap pointer */ 811 812 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 813 unsigned char *nat_bits; /* NAT bits blocks */ 814 unsigned char *full_nat_bits; /* full NAT pages */ 815 unsigned char *empty_nat_bits; /* empty NAT pages */ 816 #ifdef CONFIG_F2FS_CHECK_FS 817 char *nat_bitmap_mir; /* NAT bitmap mirror */ 818 #endif 819 int bitmap_size; /* bitmap size */ 820 }; 821 822 /* 823 * this structure is used as one of function parameters. 824 * all the information are dedicated to a given direct node block determined 825 * by the data offset in a file. 826 */ 827 struct dnode_of_data { 828 struct inode *inode; /* vfs inode pointer */ 829 struct page *inode_page; /* its inode page, NULL is possible */ 830 struct page *node_page; /* cached direct node page */ 831 nid_t nid; /* node id of the direct node block */ 832 unsigned int ofs_in_node; /* data offset in the node page */ 833 bool inode_page_locked; /* inode page is locked or not */ 834 bool node_changed; /* is node block changed */ 835 char cur_level; /* level of hole node page */ 836 char max_level; /* level of current page located */ 837 block_t data_blkaddr; /* block address of the node block */ 838 }; 839 840 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 841 struct page *ipage, struct page *npage, nid_t nid) 842 { 843 memset(dn, 0, sizeof(*dn)); 844 dn->inode = inode; 845 dn->inode_page = ipage; 846 dn->node_page = npage; 847 dn->nid = nid; 848 } 849 850 /* 851 * For SIT manager 852 * 853 * By default, there are 6 active log areas across the whole main area. 854 * When considering hot and cold data separation to reduce cleaning overhead, 855 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 856 * respectively. 857 * In the current design, you should not change the numbers intentionally. 858 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 859 * logs individually according to the underlying devices. (default: 6) 860 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 861 * data and 8 for node logs. 862 */ 863 #define NR_CURSEG_DATA_TYPE (3) 864 #define NR_CURSEG_NODE_TYPE (3) 865 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 866 867 enum { 868 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 869 CURSEG_WARM_DATA, /* data blocks */ 870 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 871 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 872 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 873 CURSEG_COLD_NODE, /* indirect node blocks */ 874 NO_CHECK_TYPE, 875 }; 876 877 struct flush_cmd { 878 struct completion wait; 879 struct llist_node llnode; 880 nid_t ino; 881 int ret; 882 }; 883 884 struct flush_cmd_control { 885 struct task_struct *f2fs_issue_flush; /* flush thread */ 886 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 887 atomic_t issued_flush; /* # of issued flushes */ 888 atomic_t queued_flush; /* # of queued flushes */ 889 struct llist_head issue_list; /* list for command issue */ 890 struct llist_node *dispatch_list; /* list for command dispatch */ 891 }; 892 893 struct f2fs_sm_info { 894 struct sit_info *sit_info; /* whole segment information */ 895 struct free_segmap_info *free_info; /* free segment information */ 896 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 897 struct curseg_info *curseg_array; /* active segment information */ 898 899 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 900 901 block_t seg0_blkaddr; /* block address of 0'th segment */ 902 block_t main_blkaddr; /* start block address of main area */ 903 block_t ssa_blkaddr; /* start block address of SSA area */ 904 905 unsigned int segment_count; /* total # of segments */ 906 unsigned int main_segments; /* # of segments in main area */ 907 unsigned int reserved_segments; /* # of reserved segments */ 908 unsigned int ovp_segments; /* # of overprovision segments */ 909 910 /* a threshold to reclaim prefree segments */ 911 unsigned int rec_prefree_segments; 912 913 /* for batched trimming */ 914 unsigned int trim_sections; /* # of sections to trim */ 915 916 struct list_head sit_entry_set; /* sit entry set list */ 917 918 unsigned int ipu_policy; /* in-place-update policy */ 919 unsigned int min_ipu_util; /* in-place-update threshold */ 920 unsigned int min_fsync_blocks; /* threshold for fsync */ 921 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 922 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 923 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 924 925 /* for flush command control */ 926 struct flush_cmd_control *fcc_info; 927 928 /* for discard command control */ 929 struct discard_cmd_control *dcc_info; 930 }; 931 932 /* 933 * For superblock 934 */ 935 /* 936 * COUNT_TYPE for monitoring 937 * 938 * f2fs monitors the number of several block types such as on-writeback, 939 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 940 */ 941 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 942 enum count_type { 943 F2FS_DIRTY_DENTS, 944 F2FS_DIRTY_DATA, 945 F2FS_DIRTY_QDATA, 946 F2FS_DIRTY_NODES, 947 F2FS_DIRTY_META, 948 F2FS_INMEM_PAGES, 949 F2FS_DIRTY_IMETA, 950 F2FS_WB_CP_DATA, 951 F2FS_WB_DATA, 952 F2FS_RD_DATA, 953 F2FS_RD_NODE, 954 F2FS_RD_META, 955 F2FS_DIO_WRITE, 956 F2FS_DIO_READ, 957 NR_COUNT_TYPE, 958 }; 959 960 /* 961 * The below are the page types of bios used in submit_bio(). 962 * The available types are: 963 * DATA User data pages. It operates as async mode. 964 * NODE Node pages. It operates as async mode. 965 * META FS metadata pages such as SIT, NAT, CP. 966 * NR_PAGE_TYPE The number of page types. 967 * META_FLUSH Make sure the previous pages are written 968 * with waiting the bio's completion 969 * ... Only can be used with META. 970 */ 971 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 972 enum page_type { 973 DATA, 974 NODE, 975 META, 976 NR_PAGE_TYPE, 977 META_FLUSH, 978 INMEM, /* the below types are used by tracepoints only. */ 979 INMEM_DROP, 980 INMEM_INVALIDATE, 981 INMEM_REVOKE, 982 IPU, 983 OPU, 984 }; 985 986 enum temp_type { 987 HOT = 0, /* must be zero for meta bio */ 988 WARM, 989 COLD, 990 NR_TEMP_TYPE, 991 }; 992 993 enum need_lock_type { 994 LOCK_REQ = 0, 995 LOCK_DONE, 996 LOCK_RETRY, 997 }; 998 999 enum cp_reason_type { 1000 CP_NO_NEEDED, 1001 CP_NON_REGULAR, 1002 CP_HARDLINK, 1003 CP_SB_NEED_CP, 1004 CP_WRONG_PINO, 1005 CP_NO_SPC_ROLL, 1006 CP_NODE_NEED_CP, 1007 CP_FASTBOOT_MODE, 1008 CP_SPEC_LOG_NUM, 1009 CP_RECOVER_DIR, 1010 }; 1011 1012 enum iostat_type { 1013 APP_DIRECT_IO, /* app direct IOs */ 1014 APP_BUFFERED_IO, /* app buffered IOs */ 1015 APP_WRITE_IO, /* app write IOs */ 1016 APP_MAPPED_IO, /* app mapped IOs */ 1017 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1018 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1019 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1020 FS_GC_DATA_IO, /* data IOs from forground gc */ 1021 FS_GC_NODE_IO, /* node IOs from forground gc */ 1022 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1023 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1024 FS_CP_META_IO, /* meta IOs from checkpoint */ 1025 FS_DISCARD, /* discard */ 1026 NR_IO_TYPE, 1027 }; 1028 1029 struct f2fs_io_info { 1030 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1031 nid_t ino; /* inode number */ 1032 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1033 enum temp_type temp; /* contains HOT/WARM/COLD */ 1034 int op; /* contains REQ_OP_ */ 1035 int op_flags; /* req_flag_bits */ 1036 block_t new_blkaddr; /* new block address to be written */ 1037 block_t old_blkaddr; /* old block address before Cow */ 1038 struct page *page; /* page to be written */ 1039 struct page *encrypted_page; /* encrypted page */ 1040 struct list_head list; /* serialize IOs */ 1041 bool submitted; /* indicate IO submission */ 1042 int need_lock; /* indicate we need to lock cp_rwsem */ 1043 bool in_list; /* indicate fio is in io_list */ 1044 bool is_meta; /* indicate borrow meta inode mapping or not */ 1045 bool retry; /* need to reallocate block address */ 1046 enum iostat_type io_type; /* io type */ 1047 struct writeback_control *io_wbc; /* writeback control */ 1048 unsigned char version; /* version of the node */ 1049 }; 1050 1051 #define is_read_io(rw) ((rw) == READ) 1052 struct f2fs_bio_info { 1053 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1054 struct bio *bio; /* bios to merge */ 1055 sector_t last_block_in_bio; /* last block number */ 1056 struct f2fs_io_info fio; /* store buffered io info. */ 1057 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1058 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1059 struct list_head io_list; /* track fios */ 1060 }; 1061 1062 #define FDEV(i) (sbi->devs[i]) 1063 #define RDEV(i) (raw_super->devs[i]) 1064 struct f2fs_dev_info { 1065 struct block_device *bdev; 1066 char path[MAX_PATH_LEN]; 1067 unsigned int total_segments; 1068 block_t start_blk; 1069 block_t end_blk; 1070 #ifdef CONFIG_BLK_DEV_ZONED 1071 unsigned int nr_blkz; /* Total number of zones */ 1072 u8 *blkz_type; /* Array of zones type */ 1073 #endif 1074 }; 1075 1076 enum inode_type { 1077 DIR_INODE, /* for dirty dir inode */ 1078 FILE_INODE, /* for dirty regular/symlink inode */ 1079 DIRTY_META, /* for all dirtied inode metadata */ 1080 ATOMIC_FILE, /* for all atomic files */ 1081 NR_INODE_TYPE, 1082 }; 1083 1084 /* for inner inode cache management */ 1085 struct inode_management { 1086 struct radix_tree_root ino_root; /* ino entry array */ 1087 spinlock_t ino_lock; /* for ino entry lock */ 1088 struct list_head ino_list; /* inode list head */ 1089 unsigned long ino_num; /* number of entries */ 1090 }; 1091 1092 /* For s_flag in struct f2fs_sb_info */ 1093 enum { 1094 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1095 SBI_IS_CLOSE, /* specify unmounting */ 1096 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1097 SBI_POR_DOING, /* recovery is doing or not */ 1098 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1099 SBI_NEED_CP, /* need to checkpoint */ 1100 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1101 SBI_IS_RECOVERED, /* recovered orphan/data */ 1102 SBI_CP_DISABLED, /* CP was disabled last mount */ 1103 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ 1104 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1105 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1106 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1107 }; 1108 1109 enum { 1110 CP_TIME, 1111 REQ_TIME, 1112 DISCARD_TIME, 1113 GC_TIME, 1114 DISABLE_TIME, 1115 UMOUNT_DISCARD_TIMEOUT, 1116 MAX_TIME, 1117 }; 1118 1119 enum { 1120 GC_NORMAL, 1121 GC_IDLE_CB, 1122 GC_IDLE_GREEDY, 1123 GC_URGENT, 1124 }; 1125 1126 enum { 1127 WHINT_MODE_OFF, /* not pass down write hints */ 1128 WHINT_MODE_USER, /* try to pass down hints given by users */ 1129 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1130 }; 1131 1132 enum { 1133 ALLOC_MODE_DEFAULT, /* stay default */ 1134 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1135 }; 1136 1137 enum fsync_mode { 1138 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1139 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1140 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1141 }; 1142 1143 #ifdef CONFIG_FS_ENCRYPTION 1144 #define DUMMY_ENCRYPTION_ENABLED(sbi) \ 1145 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption)) 1146 #else 1147 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0) 1148 #endif 1149 1150 struct f2fs_sb_info { 1151 struct super_block *sb; /* pointer to VFS super block */ 1152 struct proc_dir_entry *s_proc; /* proc entry */ 1153 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1154 struct rw_semaphore sb_lock; /* lock for raw super block */ 1155 int valid_super_block; /* valid super block no */ 1156 unsigned long s_flag; /* flags for sbi */ 1157 struct mutex writepages; /* mutex for writepages() */ 1158 1159 #ifdef CONFIG_BLK_DEV_ZONED 1160 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1161 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1162 #endif 1163 1164 /* for node-related operations */ 1165 struct f2fs_nm_info *nm_info; /* node manager */ 1166 struct inode *node_inode; /* cache node blocks */ 1167 1168 /* for segment-related operations */ 1169 struct f2fs_sm_info *sm_info; /* segment manager */ 1170 1171 /* for bio operations */ 1172 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1173 /* keep migration IO order for LFS mode */ 1174 struct rw_semaphore io_order_lock; 1175 mempool_t *write_io_dummy; /* Dummy pages */ 1176 1177 /* for checkpoint */ 1178 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1179 int cur_cp_pack; /* remain current cp pack */ 1180 spinlock_t cp_lock; /* for flag in ckpt */ 1181 struct inode *meta_inode; /* cache meta blocks */ 1182 struct mutex cp_mutex; /* checkpoint procedure lock */ 1183 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1184 struct rw_semaphore node_write; /* locking node writes */ 1185 struct rw_semaphore node_change; /* locking node change */ 1186 wait_queue_head_t cp_wait; 1187 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1188 long interval_time[MAX_TIME]; /* to store thresholds */ 1189 1190 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1191 1192 spinlock_t fsync_node_lock; /* for node entry lock */ 1193 struct list_head fsync_node_list; /* node list head */ 1194 unsigned int fsync_seg_id; /* sequence id */ 1195 unsigned int fsync_node_num; /* number of node entries */ 1196 1197 /* for orphan inode, use 0'th array */ 1198 unsigned int max_orphans; /* max orphan inodes */ 1199 1200 /* for inode management */ 1201 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1202 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1203 1204 /* for extent tree cache */ 1205 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1206 struct mutex extent_tree_lock; /* locking extent radix tree */ 1207 struct list_head extent_list; /* lru list for shrinker */ 1208 spinlock_t extent_lock; /* locking extent lru list */ 1209 atomic_t total_ext_tree; /* extent tree count */ 1210 struct list_head zombie_list; /* extent zombie tree list */ 1211 atomic_t total_zombie_tree; /* extent zombie tree count */ 1212 atomic_t total_ext_node; /* extent info count */ 1213 1214 /* basic filesystem units */ 1215 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1216 unsigned int log_blocksize; /* log2 block size */ 1217 unsigned int blocksize; /* block size */ 1218 unsigned int root_ino_num; /* root inode number*/ 1219 unsigned int node_ino_num; /* node inode number*/ 1220 unsigned int meta_ino_num; /* meta inode number*/ 1221 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1222 unsigned int blocks_per_seg; /* blocks per segment */ 1223 unsigned int segs_per_sec; /* segments per section */ 1224 unsigned int secs_per_zone; /* sections per zone */ 1225 unsigned int total_sections; /* total section count */ 1226 unsigned int total_node_count; /* total node block count */ 1227 unsigned int total_valid_node_count; /* valid node block count */ 1228 loff_t max_file_blocks; /* max block index of file */ 1229 int dir_level; /* directory level */ 1230 int readdir_ra; /* readahead inode in readdir */ 1231 1232 block_t user_block_count; /* # of user blocks */ 1233 block_t total_valid_block_count; /* # of valid blocks */ 1234 block_t discard_blks; /* discard command candidats */ 1235 block_t last_valid_block_count; /* for recovery */ 1236 block_t reserved_blocks; /* configurable reserved blocks */ 1237 block_t current_reserved_blocks; /* current reserved blocks */ 1238 1239 /* Additional tracking for no checkpoint mode */ 1240 block_t unusable_block_count; /* # of blocks saved by last cp */ 1241 1242 unsigned int nquota_files; /* # of quota sysfile */ 1243 1244 /* # of pages, see count_type */ 1245 atomic_t nr_pages[NR_COUNT_TYPE]; 1246 /* # of allocated blocks */ 1247 struct percpu_counter alloc_valid_block_count; 1248 1249 /* writeback control */ 1250 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1251 1252 /* valid inode count */ 1253 struct percpu_counter total_valid_inode_count; 1254 1255 struct f2fs_mount_info mount_opt; /* mount options */ 1256 1257 /* for cleaning operations */ 1258 struct mutex gc_mutex; /* mutex for GC */ 1259 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1260 unsigned int cur_victim_sec; /* current victim section num */ 1261 unsigned int gc_mode; /* current GC state */ 1262 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1263 /* for skip statistic */ 1264 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1265 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1266 1267 /* threshold for gc trials on pinned files */ 1268 u64 gc_pin_file_threshold; 1269 1270 /* maximum # of trials to find a victim segment for SSR and GC */ 1271 unsigned int max_victim_search; 1272 /* migration granularity of garbage collection, unit: segment */ 1273 unsigned int migration_granularity; 1274 1275 /* 1276 * for stat information. 1277 * one is for the LFS mode, and the other is for the SSR mode. 1278 */ 1279 #ifdef CONFIG_F2FS_STAT_FS 1280 struct f2fs_stat_info *stat_info; /* FS status information */ 1281 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1282 unsigned int segment_count[2]; /* # of allocated segments */ 1283 unsigned int block_count[2]; /* # of allocated blocks */ 1284 atomic_t inplace_count; /* # of inplace update */ 1285 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1286 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1287 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1288 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1289 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1290 atomic_t inline_inode; /* # of inline_data inodes */ 1291 atomic_t inline_dir; /* # of inline_dentry inodes */ 1292 atomic_t aw_cnt; /* # of atomic writes */ 1293 atomic_t vw_cnt; /* # of volatile writes */ 1294 atomic_t max_aw_cnt; /* max # of atomic writes */ 1295 atomic_t max_vw_cnt; /* max # of volatile writes */ 1296 int bg_gc; /* background gc calls */ 1297 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1298 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1299 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1300 #endif 1301 spinlock_t stat_lock; /* lock for stat operations */ 1302 1303 /* For app/fs IO statistics */ 1304 spinlock_t iostat_lock; 1305 unsigned long long write_iostat[NR_IO_TYPE]; 1306 bool iostat_enable; 1307 1308 /* For sysfs suppport */ 1309 struct kobject s_kobj; 1310 struct completion s_kobj_unregister; 1311 1312 /* For shrinker support */ 1313 struct list_head s_list; 1314 int s_ndevs; /* number of devices */ 1315 struct f2fs_dev_info *devs; /* for device list */ 1316 unsigned int dirty_device; /* for checkpoint data flush */ 1317 spinlock_t dev_lock; /* protect dirty_device */ 1318 struct mutex umount_mutex; 1319 unsigned int shrinker_run_no; 1320 1321 /* For write statistics */ 1322 u64 sectors_written_start; 1323 u64 kbytes_written; 1324 1325 /* Reference to checksum algorithm driver via cryptoapi */ 1326 struct crypto_shash *s_chksum_driver; 1327 1328 /* Precomputed FS UUID checksum for seeding other checksums */ 1329 __u32 s_chksum_seed; 1330 }; 1331 1332 struct f2fs_private_dio { 1333 struct inode *inode; 1334 void *orig_private; 1335 bio_end_io_t *orig_end_io; 1336 bool write; 1337 }; 1338 1339 #ifdef CONFIG_F2FS_FAULT_INJECTION 1340 #define f2fs_show_injection_info(type) \ 1341 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \ 1342 KERN_INFO, f2fs_fault_name[type], \ 1343 __func__, __builtin_return_address(0)) 1344 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1345 { 1346 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1347 1348 if (!ffi->inject_rate) 1349 return false; 1350 1351 if (!IS_FAULT_SET(ffi, type)) 1352 return false; 1353 1354 atomic_inc(&ffi->inject_ops); 1355 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1356 atomic_set(&ffi->inject_ops, 0); 1357 return true; 1358 } 1359 return false; 1360 } 1361 #else 1362 #define f2fs_show_injection_info(type) do { } while (0) 1363 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1364 { 1365 return false; 1366 } 1367 #endif 1368 1369 /* For write statistics. Suppose sector size is 512 bytes, 1370 * and the return value is in kbytes. s is of struct f2fs_sb_info. 1371 */ 1372 #define BD_PART_WRITTEN(s) \ 1373 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \ 1374 (s)->sectors_written_start) >> 1) 1375 1376 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1377 { 1378 unsigned long now = jiffies; 1379 1380 sbi->last_time[type] = now; 1381 1382 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1383 if (type == REQ_TIME) { 1384 sbi->last_time[DISCARD_TIME] = now; 1385 sbi->last_time[GC_TIME] = now; 1386 } 1387 } 1388 1389 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1390 { 1391 unsigned long interval = sbi->interval_time[type] * HZ; 1392 1393 return time_after(jiffies, sbi->last_time[type] + interval); 1394 } 1395 1396 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1397 int type) 1398 { 1399 unsigned long interval = sbi->interval_time[type] * HZ; 1400 unsigned int wait_ms = 0; 1401 long delta; 1402 1403 delta = (sbi->last_time[type] + interval) - jiffies; 1404 if (delta > 0) 1405 wait_ms = jiffies_to_msecs(delta); 1406 1407 return wait_ms; 1408 } 1409 1410 /* 1411 * Inline functions 1412 */ 1413 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1414 const void *address, unsigned int length) 1415 { 1416 struct { 1417 struct shash_desc shash; 1418 char ctx[4]; 1419 } desc; 1420 int err; 1421 1422 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1423 1424 desc.shash.tfm = sbi->s_chksum_driver; 1425 *(u32 *)desc.ctx = crc; 1426 1427 err = crypto_shash_update(&desc.shash, address, length); 1428 BUG_ON(err); 1429 1430 return *(u32 *)desc.ctx; 1431 } 1432 1433 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1434 unsigned int length) 1435 { 1436 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1437 } 1438 1439 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1440 void *buf, size_t buf_size) 1441 { 1442 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1443 } 1444 1445 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1446 const void *address, unsigned int length) 1447 { 1448 return __f2fs_crc32(sbi, crc, address, length); 1449 } 1450 1451 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1452 { 1453 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1454 } 1455 1456 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1457 { 1458 return sb->s_fs_info; 1459 } 1460 1461 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1462 { 1463 return F2FS_SB(inode->i_sb); 1464 } 1465 1466 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1467 { 1468 return F2FS_I_SB(mapping->host); 1469 } 1470 1471 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1472 { 1473 return F2FS_M_SB(page->mapping); 1474 } 1475 1476 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1477 { 1478 return (struct f2fs_super_block *)(sbi->raw_super); 1479 } 1480 1481 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1482 { 1483 return (struct f2fs_checkpoint *)(sbi->ckpt); 1484 } 1485 1486 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1487 { 1488 return (struct f2fs_node *)page_address(page); 1489 } 1490 1491 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1492 { 1493 return &((struct f2fs_node *)page_address(page))->i; 1494 } 1495 1496 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1497 { 1498 return (struct f2fs_nm_info *)(sbi->nm_info); 1499 } 1500 1501 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1502 { 1503 return (struct f2fs_sm_info *)(sbi->sm_info); 1504 } 1505 1506 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1507 { 1508 return (struct sit_info *)(SM_I(sbi)->sit_info); 1509 } 1510 1511 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1512 { 1513 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1514 } 1515 1516 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1517 { 1518 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1519 } 1520 1521 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1522 { 1523 return sbi->meta_inode->i_mapping; 1524 } 1525 1526 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1527 { 1528 return sbi->node_inode->i_mapping; 1529 } 1530 1531 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1532 { 1533 return test_bit(type, &sbi->s_flag); 1534 } 1535 1536 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1537 { 1538 set_bit(type, &sbi->s_flag); 1539 } 1540 1541 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1542 { 1543 clear_bit(type, &sbi->s_flag); 1544 } 1545 1546 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1547 { 1548 return le64_to_cpu(cp->checkpoint_ver); 1549 } 1550 1551 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1552 { 1553 if (type < F2FS_MAX_QUOTAS) 1554 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1555 return 0; 1556 } 1557 1558 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1559 { 1560 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1561 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1562 } 1563 1564 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1565 { 1566 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1567 1568 return ckpt_flags & f; 1569 } 1570 1571 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1572 { 1573 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1574 } 1575 1576 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1577 { 1578 unsigned int ckpt_flags; 1579 1580 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1581 ckpt_flags |= f; 1582 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1583 } 1584 1585 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1586 { 1587 unsigned long flags; 1588 1589 spin_lock_irqsave(&sbi->cp_lock, flags); 1590 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1591 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1592 } 1593 1594 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1595 { 1596 unsigned int ckpt_flags; 1597 1598 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1599 ckpt_flags &= (~f); 1600 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1601 } 1602 1603 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1604 { 1605 unsigned long flags; 1606 1607 spin_lock_irqsave(&sbi->cp_lock, flags); 1608 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1609 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1610 } 1611 1612 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1613 { 1614 unsigned long flags; 1615 1616 /* 1617 * In order to re-enable nat_bits we need to call fsck.f2fs by 1618 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1619 * so let's rely on regular fsck or unclean shutdown. 1620 */ 1621 1622 if (lock) 1623 spin_lock_irqsave(&sbi->cp_lock, flags); 1624 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 1625 kvfree(NM_I(sbi)->nat_bits); 1626 NM_I(sbi)->nat_bits = NULL; 1627 if (lock) 1628 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1629 } 1630 1631 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 1632 struct cp_control *cpc) 1633 { 1634 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 1635 1636 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 1637 } 1638 1639 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 1640 { 1641 down_read(&sbi->cp_rwsem); 1642 } 1643 1644 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 1645 { 1646 return down_read_trylock(&sbi->cp_rwsem); 1647 } 1648 1649 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 1650 { 1651 up_read(&sbi->cp_rwsem); 1652 } 1653 1654 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 1655 { 1656 down_write(&sbi->cp_rwsem); 1657 } 1658 1659 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 1660 { 1661 up_write(&sbi->cp_rwsem); 1662 } 1663 1664 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 1665 { 1666 int reason = CP_SYNC; 1667 1668 if (test_opt(sbi, FASTBOOT)) 1669 reason = CP_FASTBOOT; 1670 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 1671 reason = CP_UMOUNT; 1672 return reason; 1673 } 1674 1675 static inline bool __remain_node_summaries(int reason) 1676 { 1677 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 1678 } 1679 1680 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 1681 { 1682 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 1683 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 1684 } 1685 1686 /* 1687 * Check whether the inode has blocks or not 1688 */ 1689 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 1690 { 1691 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 1692 1693 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 1694 } 1695 1696 static inline bool f2fs_has_xattr_block(unsigned int ofs) 1697 { 1698 return ofs == XATTR_NODE_OFFSET; 1699 } 1700 1701 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 1702 struct inode *inode, bool cap) 1703 { 1704 if (!inode) 1705 return true; 1706 if (!test_opt(sbi, RESERVE_ROOT)) 1707 return false; 1708 if (IS_NOQUOTA(inode)) 1709 return true; 1710 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 1711 return true; 1712 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 1713 in_group_p(F2FS_OPTION(sbi).s_resgid)) 1714 return true; 1715 if (cap && capable(CAP_SYS_RESOURCE)) 1716 return true; 1717 return false; 1718 } 1719 1720 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 1721 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 1722 struct inode *inode, blkcnt_t *count) 1723 { 1724 blkcnt_t diff = 0, release = 0; 1725 block_t avail_user_block_count; 1726 int ret; 1727 1728 ret = dquot_reserve_block(inode, *count); 1729 if (ret) 1730 return ret; 1731 1732 if (time_to_inject(sbi, FAULT_BLOCK)) { 1733 f2fs_show_injection_info(FAULT_BLOCK); 1734 release = *count; 1735 goto enospc; 1736 } 1737 1738 /* 1739 * let's increase this in prior to actual block count change in order 1740 * for f2fs_sync_file to avoid data races when deciding checkpoint. 1741 */ 1742 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 1743 1744 spin_lock(&sbi->stat_lock); 1745 sbi->total_valid_block_count += (block_t)(*count); 1746 avail_user_block_count = sbi->user_block_count - 1747 sbi->current_reserved_blocks; 1748 1749 if (!__allow_reserved_blocks(sbi, inode, true)) 1750 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 1751 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1752 avail_user_block_count -= sbi->unusable_block_count; 1753 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 1754 diff = sbi->total_valid_block_count - avail_user_block_count; 1755 if (diff > *count) 1756 diff = *count; 1757 *count -= diff; 1758 release = diff; 1759 sbi->total_valid_block_count -= diff; 1760 if (!*count) { 1761 spin_unlock(&sbi->stat_lock); 1762 goto enospc; 1763 } 1764 } 1765 spin_unlock(&sbi->stat_lock); 1766 1767 if (unlikely(release)) { 1768 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1769 dquot_release_reservation_block(inode, release); 1770 } 1771 f2fs_i_blocks_write(inode, *count, true, true); 1772 return 0; 1773 1774 enospc: 1775 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1776 dquot_release_reservation_block(inode, release); 1777 return -ENOSPC; 1778 } 1779 1780 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 1781 struct inode *inode, 1782 block_t count) 1783 { 1784 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 1785 1786 spin_lock(&sbi->stat_lock); 1787 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 1788 f2fs_bug_on(sbi, inode->i_blocks < sectors); 1789 sbi->total_valid_block_count -= (block_t)count; 1790 if (sbi->reserved_blocks && 1791 sbi->current_reserved_blocks < sbi->reserved_blocks) 1792 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 1793 sbi->current_reserved_blocks + count); 1794 spin_unlock(&sbi->stat_lock); 1795 f2fs_i_blocks_write(inode, count, false, true); 1796 } 1797 1798 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 1799 { 1800 atomic_inc(&sbi->nr_pages[count_type]); 1801 1802 if (count_type == F2FS_DIRTY_DENTS || 1803 count_type == F2FS_DIRTY_NODES || 1804 count_type == F2FS_DIRTY_META || 1805 count_type == F2FS_DIRTY_QDATA || 1806 count_type == F2FS_DIRTY_IMETA) 1807 set_sbi_flag(sbi, SBI_IS_DIRTY); 1808 } 1809 1810 static inline void inode_inc_dirty_pages(struct inode *inode) 1811 { 1812 atomic_inc(&F2FS_I(inode)->dirty_pages); 1813 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1814 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1815 if (IS_NOQUOTA(inode)) 1816 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1817 } 1818 1819 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 1820 { 1821 atomic_dec(&sbi->nr_pages[count_type]); 1822 } 1823 1824 static inline void inode_dec_dirty_pages(struct inode *inode) 1825 { 1826 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 1827 !S_ISLNK(inode->i_mode)) 1828 return; 1829 1830 atomic_dec(&F2FS_I(inode)->dirty_pages); 1831 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1832 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1833 if (IS_NOQUOTA(inode)) 1834 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1835 } 1836 1837 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 1838 { 1839 return atomic_read(&sbi->nr_pages[count_type]); 1840 } 1841 1842 static inline int get_dirty_pages(struct inode *inode) 1843 { 1844 return atomic_read(&F2FS_I(inode)->dirty_pages); 1845 } 1846 1847 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 1848 { 1849 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 1850 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 1851 sbi->log_blocks_per_seg; 1852 1853 return segs / sbi->segs_per_sec; 1854 } 1855 1856 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 1857 { 1858 return sbi->total_valid_block_count; 1859 } 1860 1861 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 1862 { 1863 return sbi->discard_blks; 1864 } 1865 1866 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 1867 { 1868 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1869 1870 /* return NAT or SIT bitmap */ 1871 if (flag == NAT_BITMAP) 1872 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 1873 else if (flag == SIT_BITMAP) 1874 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 1875 1876 return 0; 1877 } 1878 1879 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 1880 { 1881 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 1882 } 1883 1884 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 1885 { 1886 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1887 int offset; 1888 1889 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 1890 offset = (flag == SIT_BITMAP) ? 1891 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 1892 return &ckpt->sit_nat_version_bitmap + offset; 1893 } 1894 1895 if (__cp_payload(sbi) > 0) { 1896 if (flag == NAT_BITMAP) 1897 return &ckpt->sit_nat_version_bitmap; 1898 else 1899 return (unsigned char *)ckpt + F2FS_BLKSIZE; 1900 } else { 1901 offset = (flag == NAT_BITMAP) ? 1902 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 1903 return &ckpt->sit_nat_version_bitmap + offset; 1904 } 1905 } 1906 1907 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 1908 { 1909 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1910 1911 if (sbi->cur_cp_pack == 2) 1912 start_addr += sbi->blocks_per_seg; 1913 return start_addr; 1914 } 1915 1916 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 1917 { 1918 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1919 1920 if (sbi->cur_cp_pack == 1) 1921 start_addr += sbi->blocks_per_seg; 1922 return start_addr; 1923 } 1924 1925 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 1926 { 1927 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 1928 } 1929 1930 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 1931 { 1932 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 1933 } 1934 1935 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 1936 struct inode *inode, bool is_inode) 1937 { 1938 block_t valid_block_count; 1939 unsigned int valid_node_count; 1940 int err; 1941 1942 if (is_inode) { 1943 if (inode) { 1944 err = dquot_alloc_inode(inode); 1945 if (err) 1946 return err; 1947 } 1948 } else { 1949 err = dquot_reserve_block(inode, 1); 1950 if (err) 1951 return err; 1952 } 1953 1954 if (time_to_inject(sbi, FAULT_BLOCK)) { 1955 f2fs_show_injection_info(FAULT_BLOCK); 1956 goto enospc; 1957 } 1958 1959 spin_lock(&sbi->stat_lock); 1960 1961 valid_block_count = sbi->total_valid_block_count + 1962 sbi->current_reserved_blocks + 1; 1963 1964 if (!__allow_reserved_blocks(sbi, inode, false)) 1965 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 1966 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1967 valid_block_count += sbi->unusable_block_count; 1968 1969 if (unlikely(valid_block_count > sbi->user_block_count)) { 1970 spin_unlock(&sbi->stat_lock); 1971 goto enospc; 1972 } 1973 1974 valid_node_count = sbi->total_valid_node_count + 1; 1975 if (unlikely(valid_node_count > sbi->total_node_count)) { 1976 spin_unlock(&sbi->stat_lock); 1977 goto enospc; 1978 } 1979 1980 sbi->total_valid_node_count++; 1981 sbi->total_valid_block_count++; 1982 spin_unlock(&sbi->stat_lock); 1983 1984 if (inode) { 1985 if (is_inode) 1986 f2fs_mark_inode_dirty_sync(inode, true); 1987 else 1988 f2fs_i_blocks_write(inode, 1, true, true); 1989 } 1990 1991 percpu_counter_inc(&sbi->alloc_valid_block_count); 1992 return 0; 1993 1994 enospc: 1995 if (is_inode) { 1996 if (inode) 1997 dquot_free_inode(inode); 1998 } else { 1999 dquot_release_reservation_block(inode, 1); 2000 } 2001 return -ENOSPC; 2002 } 2003 2004 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2005 struct inode *inode, bool is_inode) 2006 { 2007 spin_lock(&sbi->stat_lock); 2008 2009 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2010 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2011 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks); 2012 2013 sbi->total_valid_node_count--; 2014 sbi->total_valid_block_count--; 2015 if (sbi->reserved_blocks && 2016 sbi->current_reserved_blocks < sbi->reserved_blocks) 2017 sbi->current_reserved_blocks++; 2018 2019 spin_unlock(&sbi->stat_lock); 2020 2021 if (is_inode) 2022 dquot_free_inode(inode); 2023 else 2024 f2fs_i_blocks_write(inode, 1, false, true); 2025 } 2026 2027 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2028 { 2029 return sbi->total_valid_node_count; 2030 } 2031 2032 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2033 { 2034 percpu_counter_inc(&sbi->total_valid_inode_count); 2035 } 2036 2037 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2038 { 2039 percpu_counter_dec(&sbi->total_valid_inode_count); 2040 } 2041 2042 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2043 { 2044 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2045 } 2046 2047 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2048 pgoff_t index, bool for_write) 2049 { 2050 struct page *page; 2051 2052 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2053 if (!for_write) 2054 page = find_get_page_flags(mapping, index, 2055 FGP_LOCK | FGP_ACCESSED); 2056 else 2057 page = find_lock_page(mapping, index); 2058 if (page) 2059 return page; 2060 2061 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2062 f2fs_show_injection_info(FAULT_PAGE_ALLOC); 2063 return NULL; 2064 } 2065 } 2066 2067 if (!for_write) 2068 return grab_cache_page(mapping, index); 2069 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2070 } 2071 2072 static inline struct page *f2fs_pagecache_get_page( 2073 struct address_space *mapping, pgoff_t index, 2074 int fgp_flags, gfp_t gfp_mask) 2075 { 2076 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2077 f2fs_show_injection_info(FAULT_PAGE_GET); 2078 return NULL; 2079 } 2080 2081 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2082 } 2083 2084 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2085 { 2086 char *src_kaddr = kmap(src); 2087 char *dst_kaddr = kmap(dst); 2088 2089 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2090 kunmap(dst); 2091 kunmap(src); 2092 } 2093 2094 static inline void f2fs_put_page(struct page *page, int unlock) 2095 { 2096 if (!page) 2097 return; 2098 2099 if (unlock) { 2100 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2101 unlock_page(page); 2102 } 2103 put_page(page); 2104 } 2105 2106 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2107 { 2108 if (dn->node_page) 2109 f2fs_put_page(dn->node_page, 1); 2110 if (dn->inode_page && dn->node_page != dn->inode_page) 2111 f2fs_put_page(dn->inode_page, 0); 2112 dn->node_page = NULL; 2113 dn->inode_page = NULL; 2114 } 2115 2116 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2117 size_t size) 2118 { 2119 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2120 } 2121 2122 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2123 gfp_t flags) 2124 { 2125 void *entry; 2126 2127 entry = kmem_cache_alloc(cachep, flags); 2128 if (!entry) 2129 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2130 return entry; 2131 } 2132 2133 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, 2134 int npages, bool no_fail) 2135 { 2136 struct bio *bio; 2137 2138 if (no_fail) { 2139 /* No failure on bio allocation */ 2140 bio = bio_alloc(GFP_NOIO, npages); 2141 if (!bio) 2142 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); 2143 return bio; 2144 } 2145 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) { 2146 f2fs_show_injection_info(FAULT_ALLOC_BIO); 2147 return NULL; 2148 } 2149 2150 return bio_alloc(GFP_KERNEL, npages); 2151 } 2152 2153 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2154 { 2155 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2156 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2157 get_pages(sbi, F2FS_WB_CP_DATA) || 2158 get_pages(sbi, F2FS_DIO_READ) || 2159 get_pages(sbi, F2FS_DIO_WRITE)) 2160 return false; 2161 2162 if (SM_I(sbi) && SM_I(sbi)->dcc_info && 2163 atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) 2164 return false; 2165 2166 if (SM_I(sbi) && SM_I(sbi)->fcc_info && 2167 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2168 return false; 2169 2170 return f2fs_time_over(sbi, type); 2171 } 2172 2173 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2174 unsigned long index, void *item) 2175 { 2176 while (radix_tree_insert(root, index, item)) 2177 cond_resched(); 2178 } 2179 2180 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2181 2182 static inline bool IS_INODE(struct page *page) 2183 { 2184 struct f2fs_node *p = F2FS_NODE(page); 2185 2186 return RAW_IS_INODE(p); 2187 } 2188 2189 static inline int offset_in_addr(struct f2fs_inode *i) 2190 { 2191 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2192 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2193 } 2194 2195 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2196 { 2197 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2198 } 2199 2200 static inline int f2fs_has_extra_attr(struct inode *inode); 2201 static inline block_t datablock_addr(struct inode *inode, 2202 struct page *node_page, unsigned int offset) 2203 { 2204 struct f2fs_node *raw_node; 2205 __le32 *addr_array; 2206 int base = 0; 2207 bool is_inode = IS_INODE(node_page); 2208 2209 raw_node = F2FS_NODE(node_page); 2210 2211 /* from GC path only */ 2212 if (is_inode) { 2213 if (!inode) 2214 base = offset_in_addr(&raw_node->i); 2215 else if (f2fs_has_extra_attr(inode)) 2216 base = get_extra_isize(inode); 2217 } 2218 2219 addr_array = blkaddr_in_node(raw_node); 2220 return le32_to_cpu(addr_array[base + offset]); 2221 } 2222 2223 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2224 { 2225 int mask; 2226 2227 addr += (nr >> 3); 2228 mask = 1 << (7 - (nr & 0x07)); 2229 return mask & *addr; 2230 } 2231 2232 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2233 { 2234 int mask; 2235 2236 addr += (nr >> 3); 2237 mask = 1 << (7 - (nr & 0x07)); 2238 *addr |= mask; 2239 } 2240 2241 static inline void f2fs_clear_bit(unsigned int nr, char *addr) 2242 { 2243 int mask; 2244 2245 addr += (nr >> 3); 2246 mask = 1 << (7 - (nr & 0x07)); 2247 *addr &= ~mask; 2248 } 2249 2250 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2251 { 2252 int mask; 2253 int ret; 2254 2255 addr += (nr >> 3); 2256 mask = 1 << (7 - (nr & 0x07)); 2257 ret = mask & *addr; 2258 *addr |= mask; 2259 return ret; 2260 } 2261 2262 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2263 { 2264 int mask; 2265 int ret; 2266 2267 addr += (nr >> 3); 2268 mask = 1 << (7 - (nr & 0x07)); 2269 ret = mask & *addr; 2270 *addr &= ~mask; 2271 return ret; 2272 } 2273 2274 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2275 { 2276 int mask; 2277 2278 addr += (nr >> 3); 2279 mask = 1 << (7 - (nr & 0x07)); 2280 *addr ^= mask; 2281 } 2282 2283 /* 2284 * Inode flags 2285 */ 2286 #define F2FS_SECRM_FL 0x00000001 /* Secure deletion */ 2287 #define F2FS_UNRM_FL 0x00000002 /* Undelete */ 2288 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2289 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2290 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2291 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2292 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2293 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2294 /* Reserved for compression usage... */ 2295 #define F2FS_DIRTY_FL 0x00000100 2296 #define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ 2297 #define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */ 2298 #define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */ 2299 /* End compression flags --- maybe not all used */ 2300 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2301 #define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */ 2302 #define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */ 2303 #define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */ 2304 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2305 #define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ 2306 #define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */ 2307 #define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */ 2308 #define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */ 2309 #define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */ 2310 #define F2FS_NOCOW_FL 0x00800000 /* Do not cow file */ 2311 #define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */ 2312 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2313 #define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */ 2314 2315 #define F2FS_FL_USER_VISIBLE 0x30CBDFFF /* User visible flags */ 2316 #define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */ 2317 2318 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */ 2319 #define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \ 2320 F2FS_IMMUTABLE_FL | \ 2321 F2FS_APPEND_FL | \ 2322 F2FS_NODUMP_FL | \ 2323 F2FS_NOATIME_FL | \ 2324 F2FS_PROJINHERIT_FL) 2325 2326 /* Flags that should be inherited by new inodes from their parent. */ 2327 #define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\ 2328 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\ 2329 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\ 2330 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\ 2331 F2FS_PROJINHERIT_FL) 2332 2333 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2334 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL)) 2335 2336 /* Flags that are appropriate for non-directories/regular files. */ 2337 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2338 2339 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2340 { 2341 if (S_ISDIR(mode)) 2342 return flags; 2343 else if (S_ISREG(mode)) 2344 return flags & F2FS_REG_FLMASK; 2345 else 2346 return flags & F2FS_OTHER_FLMASK; 2347 } 2348 2349 /* used for f2fs_inode_info->flags */ 2350 enum { 2351 FI_NEW_INODE, /* indicate newly allocated inode */ 2352 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 2353 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 2354 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 2355 FI_INC_LINK, /* need to increment i_nlink */ 2356 FI_ACL_MODE, /* indicate acl mode */ 2357 FI_NO_ALLOC, /* should not allocate any blocks */ 2358 FI_FREE_NID, /* free allocated nide */ 2359 FI_NO_EXTENT, /* not to use the extent cache */ 2360 FI_INLINE_XATTR, /* used for inline xattr */ 2361 FI_INLINE_DATA, /* used for inline data*/ 2362 FI_INLINE_DENTRY, /* used for inline dentry */ 2363 FI_APPEND_WRITE, /* inode has appended data */ 2364 FI_UPDATE_WRITE, /* inode has in-place-update data */ 2365 FI_NEED_IPU, /* used for ipu per file */ 2366 FI_ATOMIC_FILE, /* indicate atomic file */ 2367 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 2368 FI_VOLATILE_FILE, /* indicate volatile file */ 2369 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 2370 FI_DROP_CACHE, /* drop dirty page cache */ 2371 FI_DATA_EXIST, /* indicate data exists */ 2372 FI_INLINE_DOTS, /* indicate inline dot dentries */ 2373 FI_DO_DEFRAG, /* indicate defragment is running */ 2374 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 2375 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 2376 FI_HOT_DATA, /* indicate file is hot */ 2377 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 2378 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 2379 FI_PIN_FILE, /* indicate file should not be gced */ 2380 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 2381 }; 2382 2383 static inline void __mark_inode_dirty_flag(struct inode *inode, 2384 int flag, bool set) 2385 { 2386 switch (flag) { 2387 case FI_INLINE_XATTR: 2388 case FI_INLINE_DATA: 2389 case FI_INLINE_DENTRY: 2390 case FI_NEW_INODE: 2391 if (set) 2392 return; 2393 /* fall through */ 2394 case FI_DATA_EXIST: 2395 case FI_INLINE_DOTS: 2396 case FI_PIN_FILE: 2397 f2fs_mark_inode_dirty_sync(inode, true); 2398 } 2399 } 2400 2401 static inline void set_inode_flag(struct inode *inode, int flag) 2402 { 2403 if (!test_bit(flag, &F2FS_I(inode)->flags)) 2404 set_bit(flag, &F2FS_I(inode)->flags); 2405 __mark_inode_dirty_flag(inode, flag, true); 2406 } 2407 2408 static inline int is_inode_flag_set(struct inode *inode, int flag) 2409 { 2410 return test_bit(flag, &F2FS_I(inode)->flags); 2411 } 2412 2413 static inline void clear_inode_flag(struct inode *inode, int flag) 2414 { 2415 if (test_bit(flag, &F2FS_I(inode)->flags)) 2416 clear_bit(flag, &F2FS_I(inode)->flags); 2417 __mark_inode_dirty_flag(inode, flag, false); 2418 } 2419 2420 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2421 { 2422 F2FS_I(inode)->i_acl_mode = mode; 2423 set_inode_flag(inode, FI_ACL_MODE); 2424 f2fs_mark_inode_dirty_sync(inode, false); 2425 } 2426 2427 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2428 { 2429 if (inc) 2430 inc_nlink(inode); 2431 else 2432 drop_nlink(inode); 2433 f2fs_mark_inode_dirty_sync(inode, true); 2434 } 2435 2436 static inline void f2fs_i_blocks_write(struct inode *inode, 2437 block_t diff, bool add, bool claim) 2438 { 2439 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2440 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2441 2442 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2443 if (add) { 2444 if (claim) 2445 dquot_claim_block(inode, diff); 2446 else 2447 dquot_alloc_block_nofail(inode, diff); 2448 } else { 2449 dquot_free_block(inode, diff); 2450 } 2451 2452 f2fs_mark_inode_dirty_sync(inode, true); 2453 if (clean || recover) 2454 set_inode_flag(inode, FI_AUTO_RECOVER); 2455 } 2456 2457 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2458 { 2459 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2460 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2461 2462 if (i_size_read(inode) == i_size) 2463 return; 2464 2465 i_size_write(inode, i_size); 2466 f2fs_mark_inode_dirty_sync(inode, true); 2467 if (clean || recover) 2468 set_inode_flag(inode, FI_AUTO_RECOVER); 2469 } 2470 2471 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2472 { 2473 F2FS_I(inode)->i_current_depth = depth; 2474 f2fs_mark_inode_dirty_sync(inode, true); 2475 } 2476 2477 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2478 unsigned int count) 2479 { 2480 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2481 f2fs_mark_inode_dirty_sync(inode, true); 2482 } 2483 2484 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2485 { 2486 F2FS_I(inode)->i_xattr_nid = xnid; 2487 f2fs_mark_inode_dirty_sync(inode, true); 2488 } 2489 2490 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2491 { 2492 F2FS_I(inode)->i_pino = pino; 2493 f2fs_mark_inode_dirty_sync(inode, true); 2494 } 2495 2496 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2497 { 2498 struct f2fs_inode_info *fi = F2FS_I(inode); 2499 2500 if (ri->i_inline & F2FS_INLINE_XATTR) 2501 set_bit(FI_INLINE_XATTR, &fi->flags); 2502 if (ri->i_inline & F2FS_INLINE_DATA) 2503 set_bit(FI_INLINE_DATA, &fi->flags); 2504 if (ri->i_inline & F2FS_INLINE_DENTRY) 2505 set_bit(FI_INLINE_DENTRY, &fi->flags); 2506 if (ri->i_inline & F2FS_DATA_EXIST) 2507 set_bit(FI_DATA_EXIST, &fi->flags); 2508 if (ri->i_inline & F2FS_INLINE_DOTS) 2509 set_bit(FI_INLINE_DOTS, &fi->flags); 2510 if (ri->i_inline & F2FS_EXTRA_ATTR) 2511 set_bit(FI_EXTRA_ATTR, &fi->flags); 2512 if (ri->i_inline & F2FS_PIN_FILE) 2513 set_bit(FI_PIN_FILE, &fi->flags); 2514 } 2515 2516 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2517 { 2518 ri->i_inline = 0; 2519 2520 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2521 ri->i_inline |= F2FS_INLINE_XATTR; 2522 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2523 ri->i_inline |= F2FS_INLINE_DATA; 2524 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2525 ri->i_inline |= F2FS_INLINE_DENTRY; 2526 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2527 ri->i_inline |= F2FS_DATA_EXIST; 2528 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2529 ri->i_inline |= F2FS_INLINE_DOTS; 2530 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2531 ri->i_inline |= F2FS_EXTRA_ATTR; 2532 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2533 ri->i_inline |= F2FS_PIN_FILE; 2534 } 2535 2536 static inline int f2fs_has_extra_attr(struct inode *inode) 2537 { 2538 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2539 } 2540 2541 static inline int f2fs_has_inline_xattr(struct inode *inode) 2542 { 2543 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2544 } 2545 2546 static inline unsigned int addrs_per_inode(struct inode *inode) 2547 { 2548 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode); 2549 } 2550 2551 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2552 { 2553 struct f2fs_inode *ri = F2FS_INODE(page); 2554 2555 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2556 get_inline_xattr_addrs(inode)]); 2557 } 2558 2559 static inline int inline_xattr_size(struct inode *inode) 2560 { 2561 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2562 } 2563 2564 static inline int f2fs_has_inline_data(struct inode *inode) 2565 { 2566 return is_inode_flag_set(inode, FI_INLINE_DATA); 2567 } 2568 2569 static inline int f2fs_exist_data(struct inode *inode) 2570 { 2571 return is_inode_flag_set(inode, FI_DATA_EXIST); 2572 } 2573 2574 static inline int f2fs_has_inline_dots(struct inode *inode) 2575 { 2576 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2577 } 2578 2579 static inline bool f2fs_is_pinned_file(struct inode *inode) 2580 { 2581 return is_inode_flag_set(inode, FI_PIN_FILE); 2582 } 2583 2584 static inline bool f2fs_is_atomic_file(struct inode *inode) 2585 { 2586 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2587 } 2588 2589 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2590 { 2591 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 2592 } 2593 2594 static inline bool f2fs_is_volatile_file(struct inode *inode) 2595 { 2596 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 2597 } 2598 2599 static inline bool f2fs_is_first_block_written(struct inode *inode) 2600 { 2601 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 2602 } 2603 2604 static inline bool f2fs_is_drop_cache(struct inode *inode) 2605 { 2606 return is_inode_flag_set(inode, FI_DROP_CACHE); 2607 } 2608 2609 static inline void *inline_data_addr(struct inode *inode, struct page *page) 2610 { 2611 struct f2fs_inode *ri = F2FS_INODE(page); 2612 int extra_size = get_extra_isize(inode); 2613 2614 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 2615 } 2616 2617 static inline int f2fs_has_inline_dentry(struct inode *inode) 2618 { 2619 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 2620 } 2621 2622 static inline int is_file(struct inode *inode, int type) 2623 { 2624 return F2FS_I(inode)->i_advise & type; 2625 } 2626 2627 static inline void set_file(struct inode *inode, int type) 2628 { 2629 F2FS_I(inode)->i_advise |= type; 2630 f2fs_mark_inode_dirty_sync(inode, true); 2631 } 2632 2633 static inline void clear_file(struct inode *inode, int type) 2634 { 2635 F2FS_I(inode)->i_advise &= ~type; 2636 f2fs_mark_inode_dirty_sync(inode, true); 2637 } 2638 2639 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 2640 { 2641 bool ret; 2642 2643 if (dsync) { 2644 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2645 2646 spin_lock(&sbi->inode_lock[DIRTY_META]); 2647 ret = list_empty(&F2FS_I(inode)->gdirty_list); 2648 spin_unlock(&sbi->inode_lock[DIRTY_META]); 2649 return ret; 2650 } 2651 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 2652 file_keep_isize(inode) || 2653 i_size_read(inode) & ~PAGE_MASK) 2654 return false; 2655 2656 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 2657 return false; 2658 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 2659 return false; 2660 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 2661 return false; 2662 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 2663 &F2FS_I(inode)->i_crtime)) 2664 return false; 2665 2666 down_read(&F2FS_I(inode)->i_sem); 2667 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 2668 up_read(&F2FS_I(inode)->i_sem); 2669 2670 return ret; 2671 } 2672 2673 static inline bool f2fs_readonly(struct super_block *sb) 2674 { 2675 return sb_rdonly(sb); 2676 } 2677 2678 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 2679 { 2680 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 2681 } 2682 2683 static inline bool is_dot_dotdot(const struct qstr *str) 2684 { 2685 if (str->len == 1 && str->name[0] == '.') 2686 return true; 2687 2688 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') 2689 return true; 2690 2691 return false; 2692 } 2693 2694 static inline bool f2fs_may_extent_tree(struct inode *inode) 2695 { 2696 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2697 2698 if (!test_opt(sbi, EXTENT_CACHE) || 2699 is_inode_flag_set(inode, FI_NO_EXTENT)) 2700 return false; 2701 2702 /* 2703 * for recovered files during mount do not create extents 2704 * if shrinker is not registered. 2705 */ 2706 if (list_empty(&sbi->s_list)) 2707 return false; 2708 2709 return S_ISREG(inode->i_mode); 2710 } 2711 2712 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 2713 size_t size, gfp_t flags) 2714 { 2715 void *ret; 2716 2717 if (time_to_inject(sbi, FAULT_KMALLOC)) { 2718 f2fs_show_injection_info(FAULT_KMALLOC); 2719 return NULL; 2720 } 2721 2722 ret = kmalloc(size, flags); 2723 if (ret) 2724 return ret; 2725 2726 return kvmalloc(size, flags); 2727 } 2728 2729 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 2730 size_t size, gfp_t flags) 2731 { 2732 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 2733 } 2734 2735 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 2736 size_t size, gfp_t flags) 2737 { 2738 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 2739 f2fs_show_injection_info(FAULT_KVMALLOC); 2740 return NULL; 2741 } 2742 2743 return kvmalloc(size, flags); 2744 } 2745 2746 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 2747 size_t size, gfp_t flags) 2748 { 2749 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 2750 } 2751 2752 static inline int get_extra_isize(struct inode *inode) 2753 { 2754 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 2755 } 2756 2757 static inline int get_inline_xattr_addrs(struct inode *inode) 2758 { 2759 return F2FS_I(inode)->i_inline_xattr_size; 2760 } 2761 2762 #define f2fs_get_inode_mode(i) \ 2763 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 2764 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 2765 2766 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 2767 (offsetof(struct f2fs_inode, i_extra_end) - \ 2768 offsetof(struct f2fs_inode, i_extra_isize)) \ 2769 2770 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 2771 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 2772 ((offsetof(typeof(*(f2fs_inode)), field) + \ 2773 sizeof((f2fs_inode)->field)) \ 2774 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 2775 2776 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 2777 { 2778 int i; 2779 2780 spin_lock(&sbi->iostat_lock); 2781 for (i = 0; i < NR_IO_TYPE; i++) 2782 sbi->write_iostat[i] = 0; 2783 spin_unlock(&sbi->iostat_lock); 2784 } 2785 2786 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 2787 enum iostat_type type, unsigned long long io_bytes) 2788 { 2789 if (!sbi->iostat_enable) 2790 return; 2791 spin_lock(&sbi->iostat_lock); 2792 sbi->write_iostat[type] += io_bytes; 2793 2794 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 2795 sbi->write_iostat[APP_BUFFERED_IO] = 2796 sbi->write_iostat[APP_WRITE_IO] - 2797 sbi->write_iostat[APP_DIRECT_IO]; 2798 spin_unlock(&sbi->iostat_lock); 2799 } 2800 2801 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 2802 2803 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META && \ 2804 (!is_read_io((fio)->op) || (fio)->is_meta)) 2805 2806 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 2807 block_t blkaddr, int type); 2808 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2809 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 2810 block_t blkaddr, int type) 2811 { 2812 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 2813 f2fs_msg(sbi->sb, KERN_ERR, 2814 "invalid blkaddr: %u, type: %d, run fsck to fix.", 2815 blkaddr, type); 2816 f2fs_bug_on(sbi, 1); 2817 } 2818 } 2819 2820 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 2821 { 2822 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR) 2823 return false; 2824 return true; 2825 } 2826 2827 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi, 2828 block_t blkaddr) 2829 { 2830 if (!__is_valid_data_blkaddr(blkaddr)) 2831 return false; 2832 verify_blkaddr(sbi, blkaddr, DATA_GENERIC); 2833 return true; 2834 } 2835 2836 static inline void f2fs_set_page_private(struct page *page, 2837 unsigned long data) 2838 { 2839 if (PagePrivate(page)) 2840 return; 2841 2842 get_page(page); 2843 SetPagePrivate(page); 2844 set_page_private(page, data); 2845 } 2846 2847 static inline void f2fs_clear_page_private(struct page *page) 2848 { 2849 if (!PagePrivate(page)) 2850 return; 2851 2852 set_page_private(page, 0); 2853 ClearPagePrivate(page); 2854 f2fs_put_page(page, 0); 2855 } 2856 2857 /* 2858 * file.c 2859 */ 2860 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 2861 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 2862 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); 2863 int f2fs_truncate(struct inode *inode); 2864 int f2fs_getattr(const struct path *path, struct kstat *stat, 2865 u32 request_mask, unsigned int flags); 2866 int f2fs_setattr(struct dentry *dentry, struct iattr *attr); 2867 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 2868 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 2869 int f2fs_precache_extents(struct inode *inode); 2870 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 2871 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 2872 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 2873 int f2fs_pin_file_control(struct inode *inode, bool inc); 2874 2875 /* 2876 * inode.c 2877 */ 2878 void f2fs_set_inode_flags(struct inode *inode); 2879 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 2880 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 2881 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 2882 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 2883 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 2884 void f2fs_update_inode(struct inode *inode, struct page *node_page); 2885 void f2fs_update_inode_page(struct inode *inode); 2886 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 2887 void f2fs_evict_inode(struct inode *inode); 2888 void f2fs_handle_failed_inode(struct inode *inode); 2889 2890 /* 2891 * namei.c 2892 */ 2893 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 2894 bool hot, bool set); 2895 struct dentry *f2fs_get_parent(struct dentry *child); 2896 2897 /* 2898 * dir.c 2899 */ 2900 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 2901 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname, 2902 f2fs_hash_t namehash, int *max_slots, 2903 struct f2fs_dentry_ptr *d); 2904 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 2905 unsigned int start_pos, struct fscrypt_str *fstr); 2906 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 2907 struct f2fs_dentry_ptr *d); 2908 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 2909 const struct qstr *new_name, 2910 const struct qstr *orig_name, struct page *dpage); 2911 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 2912 unsigned int current_depth); 2913 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 2914 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 2915 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 2916 struct fscrypt_name *fname, struct page **res_page); 2917 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 2918 const struct qstr *child, struct page **res_page); 2919 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 2920 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 2921 struct page **page); 2922 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 2923 struct page *page, struct inode *inode); 2924 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 2925 const struct qstr *name, f2fs_hash_t name_hash, 2926 unsigned int bit_pos); 2927 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, 2928 const struct qstr *orig_name, 2929 struct inode *inode, nid_t ino, umode_t mode); 2930 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname, 2931 struct inode *inode, nid_t ino, umode_t mode); 2932 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 2933 struct inode *inode, nid_t ino, umode_t mode); 2934 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 2935 struct inode *dir, struct inode *inode); 2936 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 2937 bool f2fs_empty_dir(struct inode *dir); 2938 2939 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 2940 { 2941 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 2942 inode, inode->i_ino, inode->i_mode); 2943 } 2944 2945 /* 2946 * super.c 2947 */ 2948 int f2fs_inode_dirtied(struct inode *inode, bool sync); 2949 void f2fs_inode_synced(struct inode *inode); 2950 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 2951 int f2fs_quota_sync(struct super_block *sb, int type); 2952 void f2fs_quota_off_umount(struct super_block *sb); 2953 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 2954 int f2fs_sync_fs(struct super_block *sb, int sync); 2955 extern __printf(3, 4) 2956 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2957 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 2958 2959 /* 2960 * hash.c 2961 */ 2962 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info, 2963 struct fscrypt_name *fname); 2964 2965 /* 2966 * node.c 2967 */ 2968 struct dnode_of_data; 2969 struct node_info; 2970 2971 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); 2972 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); 2973 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); 2974 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); 2975 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); 2976 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); 2977 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); 2978 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); 2979 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); 2980 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 2981 struct node_info *ni); 2982 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); 2983 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); 2984 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); 2985 int f2fs_truncate_xattr_node(struct inode *inode); 2986 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 2987 unsigned int seq_id); 2988 int f2fs_remove_inode_page(struct inode *inode); 2989 struct page *f2fs_new_inode_page(struct inode *inode); 2990 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); 2991 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); 2992 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); 2993 struct page *f2fs_get_node_page_ra(struct page *parent, int start); 2994 int f2fs_move_node_page(struct page *node_page, int gc_type); 2995 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 2996 struct writeback_control *wbc, bool atomic, 2997 unsigned int *seq_id); 2998 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 2999 struct writeback_control *wbc, 3000 bool do_balance, enum iostat_type io_type); 3001 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); 3002 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); 3003 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); 3004 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); 3005 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); 3006 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page); 3007 int f2fs_recover_xattr_data(struct inode *inode, struct page *page); 3008 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); 3009 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 3010 unsigned int segno, struct f2fs_summary_block *sum); 3011 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3012 int f2fs_build_node_manager(struct f2fs_sb_info *sbi); 3013 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); 3014 int __init f2fs_create_node_manager_caches(void); 3015 void f2fs_destroy_node_manager_caches(void); 3016 3017 /* 3018 * segment.c 3019 */ 3020 bool f2fs_need_SSR(struct f2fs_sb_info *sbi); 3021 void f2fs_register_inmem_page(struct inode *inode, struct page *page); 3022 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); 3023 void f2fs_drop_inmem_pages(struct inode *inode); 3024 void f2fs_drop_inmem_page(struct inode *inode, struct page *page); 3025 int f2fs_commit_inmem_pages(struct inode *inode); 3026 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); 3027 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); 3028 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); 3029 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); 3030 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); 3031 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); 3032 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); 3033 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); 3034 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); 3035 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); 3036 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); 3037 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, 3038 struct cp_control *cpc); 3039 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); 3040 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi); 3041 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); 3042 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); 3043 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3044 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3045 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3046 struct cp_control *cpc); 3047 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3048 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3049 block_t blk_addr); 3050 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3051 enum iostat_type io_type); 3052 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3053 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3054 struct f2fs_io_info *fio); 3055 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3056 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3057 block_t old_blkaddr, block_t new_blkaddr, 3058 bool recover_curseg, bool recover_newaddr); 3059 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3060 block_t old_addr, block_t new_addr, 3061 unsigned char version, bool recover_curseg, 3062 bool recover_newaddr); 3063 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3064 block_t old_blkaddr, block_t *new_blkaddr, 3065 struct f2fs_summary *sum, int type, 3066 struct f2fs_io_info *fio, bool add_list); 3067 void f2fs_wait_on_page_writeback(struct page *page, 3068 enum page_type type, bool ordered, bool locked); 3069 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3070 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3071 block_t len); 3072 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3073 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3074 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3075 unsigned int val, int alloc); 3076 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3077 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3078 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3079 int __init f2fs_create_segment_manager_caches(void); 3080 void f2fs_destroy_segment_manager_caches(void); 3081 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3082 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3083 enum page_type type, enum temp_type temp); 3084 3085 /* 3086 * checkpoint.c 3087 */ 3088 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3089 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3090 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3091 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index); 3092 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3093 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3094 block_t blkaddr, int type); 3095 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3096 int type, bool sync); 3097 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3098 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3099 long nr_to_write, enum iostat_type io_type); 3100 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3101 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3102 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3103 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3104 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3105 unsigned int devidx, int type); 3106 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3107 unsigned int devidx, int type); 3108 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3109 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3110 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3111 void f2fs_add_orphan_inode(struct inode *inode); 3112 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3113 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3114 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3115 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3116 void f2fs_remove_dirty_inode(struct inode *inode); 3117 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3118 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi); 3119 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3120 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3121 int __init f2fs_create_checkpoint_caches(void); 3122 void f2fs_destroy_checkpoint_caches(void); 3123 3124 /* 3125 * data.c 3126 */ 3127 int f2fs_init_post_read_processing(void); 3128 void f2fs_destroy_post_read_processing(void); 3129 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3130 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3131 struct inode *inode, struct page *page, 3132 nid_t ino, enum page_type type); 3133 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3134 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3135 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3136 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3137 block_t blk_addr, struct bio *bio); 3138 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3139 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3140 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3141 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3142 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3143 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3144 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3145 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3146 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3147 int op_flags, bool for_write); 3148 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3149 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3150 bool for_write); 3151 struct page *f2fs_get_new_data_page(struct inode *inode, 3152 struct page *ipage, pgoff_t index, bool new_i_size); 3153 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3154 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3155 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3156 int create, int flag); 3157 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3158 u64 start, u64 len); 3159 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3160 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3161 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3162 unsigned int length); 3163 int f2fs_release_page(struct page *page, gfp_t wait); 3164 #ifdef CONFIG_MIGRATION 3165 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3166 struct page *page, enum migrate_mode mode); 3167 #endif 3168 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3169 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3170 3171 /* 3172 * gc.c 3173 */ 3174 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3175 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3176 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3177 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, 3178 unsigned int segno); 3179 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3180 3181 /* 3182 * recovery.c 3183 */ 3184 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3185 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3186 3187 /* 3188 * debug.c 3189 */ 3190 #ifdef CONFIG_F2FS_STAT_FS 3191 struct f2fs_stat_info { 3192 struct list_head stat_list; 3193 struct f2fs_sb_info *sbi; 3194 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3195 int main_area_segs, main_area_sections, main_area_zones; 3196 unsigned long long hit_largest, hit_cached, hit_rbtree; 3197 unsigned long long hit_total, total_ext; 3198 int ext_tree, zombie_tree, ext_node; 3199 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3200 int ndirty_data, ndirty_qdata; 3201 int inmem_pages; 3202 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3203 int nats, dirty_nats, sits, dirty_sits; 3204 int free_nids, avail_nids, alloc_nids; 3205 int total_count, utilization; 3206 int bg_gc, nr_wb_cp_data, nr_wb_data; 3207 int nr_rd_data, nr_rd_node, nr_rd_meta; 3208 int nr_dio_read, nr_dio_write; 3209 unsigned int io_skip_bggc, other_skip_bggc; 3210 int nr_flushing, nr_flushed, flush_list_empty; 3211 int nr_discarding, nr_discarded; 3212 int nr_discard_cmd; 3213 unsigned int undiscard_blks; 3214 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3215 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3216 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3217 unsigned int bimodal, avg_vblocks; 3218 int util_free, util_valid, util_invalid; 3219 int rsvd_segs, overp_segs; 3220 int dirty_count, node_pages, meta_pages; 3221 int prefree_count, call_count, cp_count, bg_cp_count; 3222 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3223 int bg_node_segs, bg_data_segs; 3224 int tot_blks, data_blks, node_blks; 3225 int bg_data_blks, bg_node_blks; 3226 unsigned long long skipped_atomic_files[2]; 3227 int curseg[NR_CURSEG_TYPE]; 3228 int cursec[NR_CURSEG_TYPE]; 3229 int curzone[NR_CURSEG_TYPE]; 3230 3231 unsigned int meta_count[META_MAX]; 3232 unsigned int segment_count[2]; 3233 unsigned int block_count[2]; 3234 unsigned int inplace_count; 3235 unsigned long long base_mem, cache_mem, page_mem; 3236 }; 3237 3238 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3239 { 3240 return (struct f2fs_stat_info *)sbi->stat_info; 3241 } 3242 3243 #define stat_inc_cp_count(si) ((si)->cp_count++) 3244 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3245 #define stat_inc_call_count(si) ((si)->call_count++) 3246 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) 3247 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3248 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3249 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3250 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3251 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3252 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3253 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3254 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3255 #define stat_inc_inline_xattr(inode) \ 3256 do { \ 3257 if (f2fs_has_inline_xattr(inode)) \ 3258 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3259 } while (0) 3260 #define stat_dec_inline_xattr(inode) \ 3261 do { \ 3262 if (f2fs_has_inline_xattr(inode)) \ 3263 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3264 } while (0) 3265 #define stat_inc_inline_inode(inode) \ 3266 do { \ 3267 if (f2fs_has_inline_data(inode)) \ 3268 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3269 } while (0) 3270 #define stat_dec_inline_inode(inode) \ 3271 do { \ 3272 if (f2fs_has_inline_data(inode)) \ 3273 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3274 } while (0) 3275 #define stat_inc_inline_dir(inode) \ 3276 do { \ 3277 if (f2fs_has_inline_dentry(inode)) \ 3278 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3279 } while (0) 3280 #define stat_dec_inline_dir(inode) \ 3281 do { \ 3282 if (f2fs_has_inline_dentry(inode)) \ 3283 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3284 } while (0) 3285 #define stat_inc_meta_count(sbi, blkaddr) \ 3286 do { \ 3287 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3288 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3289 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3290 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3291 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3292 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3293 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3294 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3295 } while (0) 3296 #define stat_inc_seg_type(sbi, curseg) \ 3297 ((sbi)->segment_count[(curseg)->alloc_type]++) 3298 #define stat_inc_block_count(sbi, curseg) \ 3299 ((sbi)->block_count[(curseg)->alloc_type]++) 3300 #define stat_inc_inplace_blocks(sbi) \ 3301 (atomic_inc(&(sbi)->inplace_count)) 3302 #define stat_inc_atomic_write(inode) \ 3303 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt)) 3304 #define stat_dec_atomic_write(inode) \ 3305 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt)) 3306 #define stat_update_max_atomic_write(inode) \ 3307 do { \ 3308 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \ 3309 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3310 if (cur > max) \ 3311 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3312 } while (0) 3313 #define stat_inc_volatile_write(inode) \ 3314 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3315 #define stat_dec_volatile_write(inode) \ 3316 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3317 #define stat_update_max_volatile_write(inode) \ 3318 do { \ 3319 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3320 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3321 if (cur > max) \ 3322 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3323 } while (0) 3324 #define stat_inc_seg_count(sbi, type, gc_type) \ 3325 do { \ 3326 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3327 si->tot_segs++; \ 3328 if ((type) == SUM_TYPE_DATA) { \ 3329 si->data_segs++; \ 3330 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3331 } else { \ 3332 si->node_segs++; \ 3333 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3334 } \ 3335 } while (0) 3336 3337 #define stat_inc_tot_blk_count(si, blks) \ 3338 ((si)->tot_blks += (blks)) 3339 3340 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3341 do { \ 3342 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3343 stat_inc_tot_blk_count(si, blks); \ 3344 si->data_blks += (blks); \ 3345 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3346 } while (0) 3347 3348 #define stat_inc_node_blk_count(sbi, blks, gc_type) \ 3349 do { \ 3350 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3351 stat_inc_tot_blk_count(si, blks); \ 3352 si->node_blks += (blks); \ 3353 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3354 } while (0) 3355 3356 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3357 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3358 void __init f2fs_create_root_stats(void); 3359 void f2fs_destroy_root_stats(void); 3360 #else 3361 #define stat_inc_cp_count(si) do { } while (0) 3362 #define stat_inc_bg_cp_count(si) do { } while (0) 3363 #define stat_inc_call_count(si) do { } while (0) 3364 #define stat_inc_bggc_count(si) do { } while (0) 3365 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3366 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3367 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3368 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3369 #define stat_inc_total_hit(sb) do { } while (0) 3370 #define stat_inc_rbtree_node_hit(sb) do { } while (0) 3371 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3372 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3373 #define stat_inc_inline_xattr(inode) do { } while (0) 3374 #define stat_dec_inline_xattr(inode) do { } while (0) 3375 #define stat_inc_inline_inode(inode) do { } while (0) 3376 #define stat_dec_inline_inode(inode) do { } while (0) 3377 #define stat_inc_inline_dir(inode) do { } while (0) 3378 #define stat_dec_inline_dir(inode) do { } while (0) 3379 #define stat_inc_atomic_write(inode) do { } while (0) 3380 #define stat_dec_atomic_write(inode) do { } while (0) 3381 #define stat_update_max_atomic_write(inode) do { } while (0) 3382 #define stat_inc_volatile_write(inode) do { } while (0) 3383 #define stat_dec_volatile_write(inode) do { } while (0) 3384 #define stat_update_max_volatile_write(inode) do { } while (0) 3385 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3386 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3387 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3388 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3389 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3390 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3391 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3392 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3393 3394 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3395 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3396 static inline void __init f2fs_create_root_stats(void) { } 3397 static inline void f2fs_destroy_root_stats(void) { } 3398 #endif 3399 3400 extern const struct file_operations f2fs_dir_operations; 3401 extern const struct file_operations f2fs_file_operations; 3402 extern const struct inode_operations f2fs_file_inode_operations; 3403 extern const struct address_space_operations f2fs_dblock_aops; 3404 extern const struct address_space_operations f2fs_node_aops; 3405 extern const struct address_space_operations f2fs_meta_aops; 3406 extern const struct inode_operations f2fs_dir_inode_operations; 3407 extern const struct inode_operations f2fs_symlink_inode_operations; 3408 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3409 extern const struct inode_operations f2fs_special_inode_operations; 3410 extern struct kmem_cache *f2fs_inode_entry_slab; 3411 3412 /* 3413 * inline.c 3414 */ 3415 bool f2fs_may_inline_data(struct inode *inode); 3416 bool f2fs_may_inline_dentry(struct inode *inode); 3417 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3418 void f2fs_truncate_inline_inode(struct inode *inode, 3419 struct page *ipage, u64 from); 3420 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3421 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3422 int f2fs_convert_inline_inode(struct inode *inode); 3423 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3424 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3425 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3426 struct fscrypt_name *fname, struct page **res_page); 3427 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3428 struct page *ipage); 3429 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, 3430 const struct qstr *orig_name, 3431 struct inode *inode, nid_t ino, umode_t mode); 3432 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3433 struct page *page, struct inode *dir, 3434 struct inode *inode); 3435 bool f2fs_empty_inline_dir(struct inode *dir); 3436 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3437 struct fscrypt_str *fstr); 3438 int f2fs_inline_data_fiemap(struct inode *inode, 3439 struct fiemap_extent_info *fieinfo, 3440 __u64 start, __u64 len); 3441 3442 /* 3443 * shrinker.c 3444 */ 3445 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3446 struct shrink_control *sc); 3447 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3448 struct shrink_control *sc); 3449 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3450 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3451 3452 /* 3453 * extent_cache.c 3454 */ 3455 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3456 struct rb_entry *cached_re, unsigned int ofs); 3457 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3458 struct rb_root_cached *root, 3459 struct rb_node **parent, 3460 unsigned int ofs, bool *leftmost); 3461 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3462 struct rb_entry *cached_re, unsigned int ofs, 3463 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3464 struct rb_node ***insert_p, struct rb_node **insert_parent, 3465 bool force, bool *leftmost); 3466 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3467 struct rb_root_cached *root); 3468 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3469 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); 3470 void f2fs_drop_extent_tree(struct inode *inode); 3471 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3472 void f2fs_destroy_extent_tree(struct inode *inode); 3473 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3474 struct extent_info *ei); 3475 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3476 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3477 pgoff_t fofs, block_t blkaddr, unsigned int len); 3478 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3479 int __init f2fs_create_extent_cache(void); 3480 void f2fs_destroy_extent_cache(void); 3481 3482 /* 3483 * sysfs.c 3484 */ 3485 int __init f2fs_init_sysfs(void); 3486 void f2fs_exit_sysfs(void); 3487 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3488 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3489 3490 /* 3491 * crypto support 3492 */ 3493 static inline bool f2fs_encrypted_file(struct inode *inode) 3494 { 3495 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode); 3496 } 3497 3498 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3499 { 3500 #ifdef CONFIG_FS_ENCRYPTION 3501 file_set_encrypt(inode); 3502 f2fs_set_inode_flags(inode); 3503 #endif 3504 } 3505 3506 /* 3507 * Returns true if the reads of the inode's data need to undergo some 3508 * postprocessing step, like decryption or authenticity verification. 3509 */ 3510 static inline bool f2fs_post_read_required(struct inode *inode) 3511 { 3512 return f2fs_encrypted_file(inode); 3513 } 3514 3515 #define F2FS_FEATURE_FUNCS(name, flagname) \ 3516 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 3517 { \ 3518 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 3519 } 3520 3521 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 3522 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 3523 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 3524 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 3525 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 3526 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 3527 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 3528 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 3529 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 3530 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 3531 3532 #ifdef CONFIG_BLK_DEV_ZONED 3533 static inline int get_blkz_type(struct f2fs_sb_info *sbi, 3534 struct block_device *bdev, block_t blkaddr) 3535 { 3536 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 3537 int i; 3538 3539 for (i = 0; i < sbi->s_ndevs; i++) 3540 if (FDEV(i).bdev == bdev) 3541 return FDEV(i).blkz_type[zno]; 3542 return -EINVAL; 3543 } 3544 #endif 3545 3546 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 3547 { 3548 return f2fs_sb_has_blkzoned(sbi); 3549 } 3550 3551 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 3552 { 3553 return blk_queue_discard(bdev_get_queue(sbi->sb->s_bdev)); 3554 } 3555 3556 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 3557 { 3558 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 3559 f2fs_hw_should_discard(sbi); 3560 } 3561 3562 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) 3563 { 3564 clear_opt(sbi, ADAPTIVE); 3565 clear_opt(sbi, LFS); 3566 3567 switch (mt) { 3568 case F2FS_MOUNT_ADAPTIVE: 3569 set_opt(sbi, ADAPTIVE); 3570 break; 3571 case F2FS_MOUNT_LFS: 3572 set_opt(sbi, LFS); 3573 break; 3574 } 3575 } 3576 3577 static inline bool f2fs_may_encrypt(struct inode *inode) 3578 { 3579 #ifdef CONFIG_FS_ENCRYPTION 3580 umode_t mode = inode->i_mode; 3581 3582 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); 3583 #else 3584 return false; 3585 #endif 3586 } 3587 3588 static inline int block_unaligned_IO(struct inode *inode, 3589 struct kiocb *iocb, struct iov_iter *iter) 3590 { 3591 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 3592 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 3593 loff_t offset = iocb->ki_pos; 3594 unsigned long align = offset | iov_iter_alignment(iter); 3595 3596 return align & blocksize_mask; 3597 } 3598 3599 static inline int allow_outplace_dio(struct inode *inode, 3600 struct kiocb *iocb, struct iov_iter *iter) 3601 { 3602 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3603 int rw = iov_iter_rw(iter); 3604 3605 return (test_opt(sbi, LFS) && (rw == WRITE) && 3606 !block_unaligned_IO(inode, iocb, iter)); 3607 } 3608 3609 static inline bool f2fs_force_buffered_io(struct inode *inode, 3610 struct kiocb *iocb, struct iov_iter *iter) 3611 { 3612 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3613 int rw = iov_iter_rw(iter); 3614 3615 if (f2fs_post_read_required(inode)) 3616 return true; 3617 if (sbi->s_ndevs) 3618 return true; 3619 /* 3620 * for blkzoned device, fallback direct IO to buffered IO, so 3621 * all IOs can be serialized by log-structured write. 3622 */ 3623 if (f2fs_sb_has_blkzoned(sbi)) 3624 return true; 3625 if (test_opt(sbi, LFS) && (rw == WRITE) && 3626 block_unaligned_IO(inode, iocb, iter)) 3627 return true; 3628 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) 3629 return true; 3630 3631 return false; 3632 } 3633 3634 #ifdef CONFIG_F2FS_FAULT_INJECTION 3635 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 3636 unsigned int type); 3637 #else 3638 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 3639 #endif 3640 3641 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 3642 { 3643 #ifdef CONFIG_QUOTA 3644 if (f2fs_sb_has_quota_ino(sbi)) 3645 return true; 3646 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 3647 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 3648 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 3649 return true; 3650 #endif 3651 return false; 3652 } 3653 3654 #endif 3655