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 #define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION) 28 #include <linux/fscrypt.h> 29 30 #ifdef CONFIG_F2FS_CHECK_FS 31 #define f2fs_bug_on(sbi, condition) BUG_ON(condition) 32 #else 33 #define f2fs_bug_on(sbi, condition) \ 34 do { \ 35 if (unlikely(condition)) { \ 36 WARN_ON(1); \ 37 set_sbi_flag(sbi, SBI_NEED_FSCK); \ 38 } \ 39 } while (0) 40 #endif 41 42 enum { 43 FAULT_KMALLOC, 44 FAULT_KVMALLOC, 45 FAULT_PAGE_ALLOC, 46 FAULT_PAGE_GET, 47 FAULT_ALLOC_BIO, 48 FAULT_ALLOC_NID, 49 FAULT_ORPHAN, 50 FAULT_BLOCK, 51 FAULT_DIR_DEPTH, 52 FAULT_EVICT_INODE, 53 FAULT_TRUNCATE, 54 FAULT_READ_IO, 55 FAULT_CHECKPOINT, 56 FAULT_DISCARD, 57 FAULT_WRITE_IO, 58 FAULT_MAX, 59 }; 60 61 #ifdef CONFIG_F2FS_FAULT_INJECTION 62 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1) 63 64 struct f2fs_fault_info { 65 atomic_t inject_ops; 66 unsigned int inject_rate; 67 unsigned int inject_type; 68 }; 69 70 extern const char *f2fs_fault_name[FAULT_MAX]; 71 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type))) 72 #endif 73 74 /* 75 * For mount options 76 */ 77 #define F2FS_MOUNT_BG_GC 0x00000001 78 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002 79 #define F2FS_MOUNT_DISCARD 0x00000004 80 #define F2FS_MOUNT_NOHEAP 0x00000008 81 #define F2FS_MOUNT_XATTR_USER 0x00000010 82 #define F2FS_MOUNT_POSIX_ACL 0x00000020 83 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040 84 #define F2FS_MOUNT_INLINE_XATTR 0x00000080 85 #define F2FS_MOUNT_INLINE_DATA 0x00000100 86 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200 87 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400 88 #define F2FS_MOUNT_NOBARRIER 0x00000800 89 #define F2FS_MOUNT_FASTBOOT 0x00001000 90 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000 91 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000 92 #define F2FS_MOUNT_DATA_FLUSH 0x00008000 93 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000 94 #define F2FS_MOUNT_ADAPTIVE 0x00020000 95 #define F2FS_MOUNT_LFS 0x00040000 96 #define F2FS_MOUNT_USRQUOTA 0x00080000 97 #define F2FS_MOUNT_GRPQUOTA 0x00100000 98 #define F2FS_MOUNT_PRJQUOTA 0x00200000 99 #define F2FS_MOUNT_QUOTA 0x00400000 100 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000 101 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000 102 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000 103 104 #define F2FS_OPTION(sbi) ((sbi)->mount_opt) 105 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option) 106 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option) 107 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option) 108 109 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 110 typecheck(unsigned long long, b) && \ 111 ((long long)((a) - (b)) > 0)) 112 113 typedef u32 block_t; /* 114 * should not change u32, since it is the on-disk block 115 * address format, __le32. 116 */ 117 typedef u32 nid_t; 118 119 struct f2fs_mount_info { 120 unsigned int opt; 121 int write_io_size_bits; /* Write IO size bits */ 122 block_t root_reserved_blocks; /* root reserved blocks */ 123 kuid_t s_resuid; /* reserved blocks for uid */ 124 kgid_t s_resgid; /* reserved blocks for gid */ 125 int active_logs; /* # of active logs */ 126 int inline_xattr_size; /* inline xattr size */ 127 #ifdef CONFIG_F2FS_FAULT_INJECTION 128 struct f2fs_fault_info fault_info; /* For fault injection */ 129 #endif 130 #ifdef CONFIG_QUOTA 131 /* Names of quota files with journalled quota */ 132 char *s_qf_names[MAXQUOTAS]; 133 int s_jquota_fmt; /* Format of quota to use */ 134 #endif 135 /* For which write hints are passed down to block layer */ 136 int whint_mode; 137 int alloc_mode; /* segment allocation policy */ 138 int fsync_mode; /* fsync policy */ 139 bool test_dummy_encryption; /* test dummy encryption */ 140 }; 141 142 #define F2FS_FEATURE_ENCRYPT 0x0001 143 #define F2FS_FEATURE_BLKZONED 0x0002 144 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004 145 #define F2FS_FEATURE_EXTRA_ATTR 0x0008 146 #define F2FS_FEATURE_PRJQUOTA 0x0010 147 #define F2FS_FEATURE_INODE_CHKSUM 0x0020 148 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040 149 #define F2FS_FEATURE_QUOTA_INO 0x0080 150 #define F2FS_FEATURE_INODE_CRTIME 0x0100 151 #define F2FS_FEATURE_LOST_FOUND 0x0200 152 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */ 153 #define F2FS_FEATURE_SB_CHKSUM 0x0800 154 155 #define __F2FS_HAS_FEATURE(raw_super, mask) \ 156 ((raw_super->feature & cpu_to_le32(mask)) != 0) 157 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask) 158 #define F2FS_SET_FEATURE(sbi, mask) \ 159 (sbi->raw_super->feature |= cpu_to_le32(mask)) 160 #define F2FS_CLEAR_FEATURE(sbi, mask) \ 161 (sbi->raw_super->feature &= ~cpu_to_le32(mask)) 162 163 /* 164 * Default values for user and/or group using reserved blocks 165 */ 166 #define F2FS_DEF_RESUID 0 167 #define F2FS_DEF_RESGID 0 168 169 /* 170 * For checkpoint manager 171 */ 172 enum { 173 NAT_BITMAP, 174 SIT_BITMAP 175 }; 176 177 #define CP_UMOUNT 0x00000001 178 #define CP_FASTBOOT 0x00000002 179 #define CP_SYNC 0x00000004 180 #define CP_RECOVERY 0x00000008 181 #define CP_DISCARD 0x00000010 182 #define CP_TRIMMED 0x00000020 183 #define CP_PAUSE 0x00000040 184 185 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi) 186 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */ 187 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */ 188 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */ 189 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */ 190 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */ 191 #define DEF_CP_INTERVAL 60 /* 60 secs */ 192 #define DEF_IDLE_INTERVAL 5 /* 5 secs */ 193 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */ 194 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */ 195 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ 196 197 struct cp_control { 198 int reason; 199 __u64 trim_start; 200 __u64 trim_end; 201 __u64 trim_minlen; 202 }; 203 204 /* 205 * indicate meta/data type 206 */ 207 enum { 208 META_CP, 209 META_NAT, 210 META_SIT, 211 META_SSA, 212 META_MAX, 213 META_POR, 214 DATA_GENERIC, 215 META_GENERIC, 216 }; 217 218 /* for the list of ino */ 219 enum { 220 ORPHAN_INO, /* for orphan ino list */ 221 APPEND_INO, /* for append ino list */ 222 UPDATE_INO, /* for update ino list */ 223 TRANS_DIR_INO, /* for trasactions dir ino list */ 224 FLUSH_INO, /* for multiple device flushing */ 225 MAX_INO_ENTRY, /* max. list */ 226 }; 227 228 struct ino_entry { 229 struct list_head list; /* list head */ 230 nid_t ino; /* inode number */ 231 unsigned int dirty_device; /* dirty device bitmap */ 232 }; 233 234 /* for the list of inodes to be GCed */ 235 struct inode_entry { 236 struct list_head list; /* list head */ 237 struct inode *inode; /* vfs inode pointer */ 238 }; 239 240 struct fsync_node_entry { 241 struct list_head list; /* list head */ 242 struct page *page; /* warm node page pointer */ 243 unsigned int seq_id; /* sequence id */ 244 }; 245 246 /* for the bitmap indicate blocks to be discarded */ 247 struct discard_entry { 248 struct list_head list; /* list head */ 249 block_t start_blkaddr; /* start blockaddr of current segment */ 250 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ 251 }; 252 253 /* default discard granularity of inner discard thread, unit: block count */ 254 #define DEFAULT_DISCARD_GRANULARITY 16 255 256 /* max discard pend list number */ 257 #define MAX_PLIST_NUM 512 258 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ 259 (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) 260 261 enum { 262 D_PREP, /* initial */ 263 D_PARTIAL, /* partially submitted */ 264 D_SUBMIT, /* all submitted */ 265 D_DONE, /* finished */ 266 }; 267 268 struct discard_info { 269 block_t lstart; /* logical start address */ 270 block_t len; /* length */ 271 block_t start; /* actual start address in dev */ 272 }; 273 274 struct discard_cmd { 275 struct rb_node rb_node; /* rb node located in rb-tree */ 276 union { 277 struct { 278 block_t lstart; /* logical start address */ 279 block_t len; /* length */ 280 block_t start; /* actual start address in dev */ 281 }; 282 struct discard_info di; /* discard info */ 283 284 }; 285 struct list_head list; /* command list */ 286 struct completion wait; /* compleation */ 287 struct block_device *bdev; /* bdev */ 288 unsigned short ref; /* reference count */ 289 unsigned char state; /* state */ 290 unsigned char queued; /* queued discard */ 291 int error; /* bio error */ 292 spinlock_t lock; /* for state/bio_ref updating */ 293 unsigned short bio_ref; /* bio reference count */ 294 }; 295 296 enum { 297 DPOLICY_BG, 298 DPOLICY_FORCE, 299 DPOLICY_FSTRIM, 300 DPOLICY_UMOUNT, 301 MAX_DPOLICY, 302 }; 303 304 struct discard_policy { 305 int type; /* type of discard */ 306 unsigned int min_interval; /* used for candidates exist */ 307 unsigned int mid_interval; /* used for device busy */ 308 unsigned int max_interval; /* used for candidates not exist */ 309 unsigned int max_requests; /* # of discards issued per round */ 310 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ 311 bool io_aware; /* issue discard in idle time */ 312 bool sync; /* submit discard with REQ_SYNC flag */ 313 bool ordered; /* issue discard by lba order */ 314 unsigned int granularity; /* discard granularity */ 315 int timeout; /* discard timeout for put_super */ 316 }; 317 318 struct discard_cmd_control { 319 struct task_struct *f2fs_issue_discard; /* discard thread */ 320 struct list_head entry_list; /* 4KB discard entry list */ 321 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ 322 struct list_head wait_list; /* store on-flushing entries */ 323 struct list_head fstrim_list; /* in-flight discard from fstrim */ 324 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ 325 unsigned int discard_wake; /* to wake up discard thread */ 326 struct mutex cmd_lock; 327 unsigned int nr_discards; /* # of discards in the list */ 328 unsigned int max_discards; /* max. discards to be issued */ 329 unsigned int discard_granularity; /* discard granularity */ 330 unsigned int undiscard_blks; /* # of undiscard blocks */ 331 unsigned int next_pos; /* next discard position */ 332 atomic_t issued_discard; /* # of issued discard */ 333 atomic_t queued_discard; /* # of queued discard */ 334 atomic_t discard_cmd_cnt; /* # of cached cmd count */ 335 struct rb_root_cached root; /* root of discard rb-tree */ 336 bool rbtree_check; /* config for consistence check */ 337 }; 338 339 /* for the list of fsync inodes, used only during recovery */ 340 struct fsync_inode_entry { 341 struct list_head list; /* list head */ 342 struct inode *inode; /* vfs inode pointer */ 343 block_t blkaddr; /* block address locating the last fsync */ 344 block_t last_dentry; /* block address locating the last dentry */ 345 }; 346 347 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) 348 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) 349 350 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) 351 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) 352 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) 353 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) 354 355 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) 356 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) 357 358 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) 359 { 360 int before = nats_in_cursum(journal); 361 362 journal->n_nats = cpu_to_le16(before + i); 363 return before; 364 } 365 366 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) 367 { 368 int before = sits_in_cursum(journal); 369 370 journal->n_sits = cpu_to_le16(before + i); 371 return before; 372 } 373 374 static inline bool __has_cursum_space(struct f2fs_journal *journal, 375 int size, int type) 376 { 377 if (type == NAT_JOURNAL) 378 return size <= MAX_NAT_JENTRIES(journal); 379 return size <= MAX_SIT_JENTRIES(journal); 380 } 381 382 /* 383 * ioctl commands 384 */ 385 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS 386 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS 387 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION 388 389 #define F2FS_IOCTL_MAGIC 0xf5 390 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) 391 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) 392 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) 393 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) 394 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) 395 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32) 396 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) 397 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \ 398 struct f2fs_defragment) 399 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ 400 struct f2fs_move_range) 401 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ 402 struct f2fs_flush_device) 403 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \ 404 struct f2fs_gc_range) 405 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32) 406 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32) 407 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32) 408 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15) 409 410 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY 411 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY 412 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT 413 414 /* 415 * should be same as XFS_IOC_GOINGDOWN. 416 * Flags for going down operation used by FS_IOC_GOINGDOWN 417 */ 418 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ 419 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ 420 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ 421 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ 422 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ 423 #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */ 424 425 #if defined(__KERNEL__) && defined(CONFIG_COMPAT) 426 /* 427 * ioctl commands in 32 bit emulation 428 */ 429 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS 430 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS 431 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION 432 #endif 433 434 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 435 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 436 437 struct f2fs_gc_range { 438 u32 sync; 439 u64 start; 440 u64 len; 441 }; 442 443 struct f2fs_defragment { 444 u64 start; 445 u64 len; 446 }; 447 448 struct f2fs_move_range { 449 u32 dst_fd; /* destination fd */ 450 u64 pos_in; /* start position in src_fd */ 451 u64 pos_out; /* start position in dst_fd */ 452 u64 len; /* size to move */ 453 }; 454 455 struct f2fs_flush_device { 456 u32 dev_num; /* device number to flush */ 457 u32 segments; /* # of segments to flush */ 458 }; 459 460 /* for inline stuff */ 461 #define DEF_INLINE_RESERVED_SIZE 1 462 static inline int get_extra_isize(struct inode *inode); 463 static inline int get_inline_xattr_addrs(struct inode *inode); 464 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 465 (CUR_ADDRS_PER_INODE(inode) - \ 466 get_inline_xattr_addrs(inode) - \ 467 DEF_INLINE_RESERVED_SIZE)) 468 469 /* for inline dir */ 470 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 471 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 472 BITS_PER_BYTE + 1)) 473 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \ 474 BITS_PER_BYTE - 1) / BITS_PER_BYTE) 475 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 476 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 477 NR_INLINE_DENTRY(inode) + \ 478 INLINE_DENTRY_BITMAP_SIZE(inode))) 479 480 /* 481 * For INODE and NODE manager 482 */ 483 /* for directory operations */ 484 struct f2fs_dentry_ptr { 485 struct inode *inode; 486 void *bitmap; 487 struct f2fs_dir_entry *dentry; 488 __u8 (*filename)[F2FS_SLOT_LEN]; 489 int max; 490 int nr_bitmap; 491 }; 492 493 static inline void make_dentry_ptr_block(struct inode *inode, 494 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 495 { 496 d->inode = inode; 497 d->max = NR_DENTRY_IN_BLOCK; 498 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 499 d->bitmap = t->dentry_bitmap; 500 d->dentry = t->dentry; 501 d->filename = t->filename; 502 } 503 504 static inline void make_dentry_ptr_inline(struct inode *inode, 505 struct f2fs_dentry_ptr *d, void *t) 506 { 507 int entry_cnt = NR_INLINE_DENTRY(inode); 508 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 509 int reserved_size = INLINE_RESERVED_SIZE(inode); 510 511 d->inode = inode; 512 d->max = entry_cnt; 513 d->nr_bitmap = bitmap_size; 514 d->bitmap = t; 515 d->dentry = t + bitmap_size + reserved_size; 516 d->filename = t + bitmap_size + reserved_size + 517 SIZE_OF_DIR_ENTRY * entry_cnt; 518 } 519 520 /* 521 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 522 * as its node offset to distinguish from index node blocks. 523 * But some bits are used to mark the node block. 524 */ 525 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 526 >> OFFSET_BIT_SHIFT) 527 enum { 528 ALLOC_NODE, /* allocate a new node page if needed */ 529 LOOKUP_NODE, /* look up a node without readahead */ 530 LOOKUP_NODE_RA, /* 531 * look up a node with readahead called 532 * by get_data_block. 533 */ 534 }; 535 536 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 537 538 /* maximum retry quota flush count */ 539 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 540 541 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 542 543 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 544 545 /* for in-memory extent cache entry */ 546 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 547 548 /* number of extent info in extent cache we try to shrink */ 549 #define EXTENT_CACHE_SHRINK_NUMBER 128 550 551 struct rb_entry { 552 struct rb_node rb_node; /* rb node located in rb-tree */ 553 unsigned int ofs; /* start offset of the entry */ 554 unsigned int len; /* length of the entry */ 555 }; 556 557 struct extent_info { 558 unsigned int fofs; /* start offset in a file */ 559 unsigned int len; /* length of the extent */ 560 u32 blk; /* start block address of the extent */ 561 }; 562 563 struct extent_node { 564 struct rb_node rb_node; /* rb node located in rb-tree */ 565 struct extent_info ei; /* extent info */ 566 struct list_head list; /* node in global extent list of sbi */ 567 struct extent_tree *et; /* extent tree pointer */ 568 }; 569 570 struct extent_tree { 571 nid_t ino; /* inode number */ 572 struct rb_root_cached root; /* root of extent info rb-tree */ 573 struct extent_node *cached_en; /* recently accessed extent node */ 574 struct extent_info largest; /* largested extent info */ 575 struct list_head list; /* to be used by sbi->zombie_list */ 576 rwlock_t lock; /* protect extent info rb-tree */ 577 atomic_t node_cnt; /* # of extent node in rb-tree*/ 578 bool largest_updated; /* largest extent updated */ 579 }; 580 581 /* 582 * This structure is taken from ext4_map_blocks. 583 * 584 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 585 */ 586 #define F2FS_MAP_NEW (1 << BH_New) 587 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 588 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 589 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 590 F2FS_MAP_UNWRITTEN) 591 592 struct f2fs_map_blocks { 593 block_t m_pblk; 594 block_t m_lblk; 595 unsigned int m_len; 596 unsigned int m_flags; 597 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 598 pgoff_t *m_next_extent; /* point to next possible extent */ 599 int m_seg_type; 600 bool m_may_create; /* indicate it is from write path */ 601 }; 602 603 /* for flag in get_data_block */ 604 enum { 605 F2FS_GET_BLOCK_DEFAULT, 606 F2FS_GET_BLOCK_FIEMAP, 607 F2FS_GET_BLOCK_BMAP, 608 F2FS_GET_BLOCK_DIO, 609 F2FS_GET_BLOCK_PRE_DIO, 610 F2FS_GET_BLOCK_PRE_AIO, 611 F2FS_GET_BLOCK_PRECACHE, 612 }; 613 614 /* 615 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 616 */ 617 #define FADVISE_COLD_BIT 0x01 618 #define FADVISE_LOST_PINO_BIT 0x02 619 #define FADVISE_ENCRYPT_BIT 0x04 620 #define FADVISE_ENC_NAME_BIT 0x08 621 #define FADVISE_KEEP_SIZE_BIT 0x10 622 #define FADVISE_HOT_BIT 0x20 623 #define FADVISE_VERITY_BIT 0x40 /* reserved */ 624 625 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 626 627 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 628 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 629 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 630 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 631 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 632 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 633 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 634 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 635 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) 636 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 637 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 638 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 639 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 640 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 641 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 642 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 643 644 #define DEF_DIR_LEVEL 0 645 646 enum { 647 GC_FAILURE_PIN, 648 GC_FAILURE_ATOMIC, 649 MAX_GC_FAILURE 650 }; 651 652 struct f2fs_inode_info { 653 struct inode vfs_inode; /* serve a vfs inode */ 654 unsigned long i_flags; /* keep an inode flags for ioctl */ 655 unsigned char i_advise; /* use to give file attribute hints */ 656 unsigned char i_dir_level; /* use for dentry level for large dir */ 657 unsigned int i_current_depth; /* only for directory depth */ 658 /* for gc failure statistic */ 659 unsigned int i_gc_failures[MAX_GC_FAILURE]; 660 unsigned int i_pino; /* parent inode number */ 661 umode_t i_acl_mode; /* keep file acl mode temporarily */ 662 663 /* Use below internally in f2fs*/ 664 unsigned long flags; /* use to pass per-file flags */ 665 struct rw_semaphore i_sem; /* protect fi info */ 666 atomic_t dirty_pages; /* # of dirty pages */ 667 f2fs_hash_t chash; /* hash value of given file name */ 668 unsigned int clevel; /* maximum level of given file name */ 669 struct task_struct *task; /* lookup and create consistency */ 670 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 671 nid_t i_xattr_nid; /* node id that contains xattrs */ 672 loff_t last_disk_size; /* lastly written file size */ 673 674 #ifdef CONFIG_QUOTA 675 struct dquot *i_dquot[MAXQUOTAS]; 676 677 /* quota space reservation, managed internally by quota code */ 678 qsize_t i_reserved_quota; 679 #endif 680 struct list_head dirty_list; /* dirty list for dirs and files */ 681 struct list_head gdirty_list; /* linked in global dirty list */ 682 struct list_head inmem_ilist; /* list for inmem inodes */ 683 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 684 struct task_struct *inmem_task; /* store inmemory task */ 685 struct mutex inmem_lock; /* lock for inmemory pages */ 686 struct extent_tree *extent_tree; /* cached extent_tree entry */ 687 688 /* avoid racing between foreground op and gc */ 689 struct rw_semaphore i_gc_rwsem[2]; 690 struct rw_semaphore i_mmap_sem; 691 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 692 693 int i_extra_isize; /* size of extra space located in i_addr */ 694 kprojid_t i_projid; /* id for project quota */ 695 int i_inline_xattr_size; /* inline xattr size */ 696 struct timespec64 i_crtime; /* inode creation time */ 697 struct timespec64 i_disk_time[4];/* inode disk times */ 698 }; 699 700 static inline void get_extent_info(struct extent_info *ext, 701 struct f2fs_extent *i_ext) 702 { 703 ext->fofs = le32_to_cpu(i_ext->fofs); 704 ext->blk = le32_to_cpu(i_ext->blk); 705 ext->len = le32_to_cpu(i_ext->len); 706 } 707 708 static inline void set_raw_extent(struct extent_info *ext, 709 struct f2fs_extent *i_ext) 710 { 711 i_ext->fofs = cpu_to_le32(ext->fofs); 712 i_ext->blk = cpu_to_le32(ext->blk); 713 i_ext->len = cpu_to_le32(ext->len); 714 } 715 716 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 717 u32 blk, unsigned int len) 718 { 719 ei->fofs = fofs; 720 ei->blk = blk; 721 ei->len = len; 722 } 723 724 static inline bool __is_discard_mergeable(struct discard_info *back, 725 struct discard_info *front, unsigned int max_len) 726 { 727 return (back->lstart + back->len == front->lstart) && 728 (back->len + front->len <= max_len); 729 } 730 731 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 732 struct discard_info *back, unsigned int max_len) 733 { 734 return __is_discard_mergeable(back, cur, max_len); 735 } 736 737 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 738 struct discard_info *front, unsigned int max_len) 739 { 740 return __is_discard_mergeable(cur, front, max_len); 741 } 742 743 static inline bool __is_extent_mergeable(struct extent_info *back, 744 struct extent_info *front) 745 { 746 return (back->fofs + back->len == front->fofs && 747 back->blk + back->len == front->blk); 748 } 749 750 static inline bool __is_back_mergeable(struct extent_info *cur, 751 struct extent_info *back) 752 { 753 return __is_extent_mergeable(back, cur); 754 } 755 756 static inline bool __is_front_mergeable(struct extent_info *cur, 757 struct extent_info *front) 758 { 759 return __is_extent_mergeable(cur, front); 760 } 761 762 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 763 static inline void __try_update_largest_extent(struct extent_tree *et, 764 struct extent_node *en) 765 { 766 if (en->ei.len > et->largest.len) { 767 et->largest = en->ei; 768 et->largest_updated = true; 769 } 770 } 771 772 /* 773 * For free nid management 774 */ 775 enum nid_state { 776 FREE_NID, /* newly added to free nid list */ 777 PREALLOC_NID, /* it is preallocated */ 778 MAX_NID_STATE, 779 }; 780 781 struct f2fs_nm_info { 782 block_t nat_blkaddr; /* base disk address of NAT */ 783 nid_t max_nid; /* maximum possible node ids */ 784 nid_t available_nids; /* # of available node ids */ 785 nid_t next_scan_nid; /* the next nid to be scanned */ 786 unsigned int ram_thresh; /* control the memory footprint */ 787 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 788 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 789 790 /* NAT cache management */ 791 struct radix_tree_root nat_root;/* root of the nat entry cache */ 792 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 793 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ 794 struct list_head nat_entries; /* cached nat entry list (clean) */ 795 spinlock_t nat_list_lock; /* protect clean nat entry list */ 796 unsigned int nat_cnt; /* the # of cached nat entries */ 797 unsigned int dirty_nat_cnt; /* total num of nat entries in set */ 798 unsigned int nat_blocks; /* # of nat blocks */ 799 800 /* free node ids management */ 801 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 802 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 803 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 804 spinlock_t nid_list_lock; /* protect nid lists ops */ 805 struct mutex build_lock; /* lock for build free nids */ 806 unsigned char **free_nid_bitmap; 807 unsigned char *nat_block_bitmap; 808 unsigned short *free_nid_count; /* free nid count of NAT block */ 809 810 /* for checkpoint */ 811 char *nat_bitmap; /* NAT bitmap pointer */ 812 813 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 814 unsigned char *nat_bits; /* NAT bits blocks */ 815 unsigned char *full_nat_bits; /* full NAT pages */ 816 unsigned char *empty_nat_bits; /* empty NAT pages */ 817 #ifdef CONFIG_F2FS_CHECK_FS 818 char *nat_bitmap_mir; /* NAT bitmap mirror */ 819 #endif 820 int bitmap_size; /* bitmap size */ 821 }; 822 823 /* 824 * this structure is used as one of function parameters. 825 * all the information are dedicated to a given direct node block determined 826 * by the data offset in a file. 827 */ 828 struct dnode_of_data { 829 struct inode *inode; /* vfs inode pointer */ 830 struct page *inode_page; /* its inode page, NULL is possible */ 831 struct page *node_page; /* cached direct node page */ 832 nid_t nid; /* node id of the direct node block */ 833 unsigned int ofs_in_node; /* data offset in the node page */ 834 bool inode_page_locked; /* inode page is locked or not */ 835 bool node_changed; /* is node block changed */ 836 char cur_level; /* level of hole node page */ 837 char max_level; /* level of current page located */ 838 block_t data_blkaddr; /* block address of the node block */ 839 }; 840 841 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 842 struct page *ipage, struct page *npage, nid_t nid) 843 { 844 memset(dn, 0, sizeof(*dn)); 845 dn->inode = inode; 846 dn->inode_page = ipage; 847 dn->node_page = npage; 848 dn->nid = nid; 849 } 850 851 /* 852 * For SIT manager 853 * 854 * By default, there are 6 active log areas across the whole main area. 855 * When considering hot and cold data separation to reduce cleaning overhead, 856 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 857 * respectively. 858 * In the current design, you should not change the numbers intentionally. 859 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 860 * logs individually according to the underlying devices. (default: 6) 861 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 862 * data and 8 for node logs. 863 */ 864 #define NR_CURSEG_DATA_TYPE (3) 865 #define NR_CURSEG_NODE_TYPE (3) 866 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 867 868 enum { 869 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 870 CURSEG_WARM_DATA, /* data blocks */ 871 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 872 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 873 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 874 CURSEG_COLD_NODE, /* indirect node blocks */ 875 NO_CHECK_TYPE, 876 }; 877 878 struct flush_cmd { 879 struct completion wait; 880 struct llist_node llnode; 881 nid_t ino; 882 int ret; 883 }; 884 885 struct flush_cmd_control { 886 struct task_struct *f2fs_issue_flush; /* flush thread */ 887 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 888 atomic_t issued_flush; /* # of issued flushes */ 889 atomic_t queued_flush; /* # of queued flushes */ 890 struct llist_head issue_list; /* list for command issue */ 891 struct llist_node *dispatch_list; /* list for command dispatch */ 892 }; 893 894 struct f2fs_sm_info { 895 struct sit_info *sit_info; /* whole segment information */ 896 struct free_segmap_info *free_info; /* free segment information */ 897 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 898 struct curseg_info *curseg_array; /* active segment information */ 899 900 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 901 902 block_t seg0_blkaddr; /* block address of 0'th segment */ 903 block_t main_blkaddr; /* start block address of main area */ 904 block_t ssa_blkaddr; /* start block address of SSA area */ 905 906 unsigned int segment_count; /* total # of segments */ 907 unsigned int main_segments; /* # of segments in main area */ 908 unsigned int reserved_segments; /* # of reserved segments */ 909 unsigned int ovp_segments; /* # of overprovision segments */ 910 911 /* a threshold to reclaim prefree segments */ 912 unsigned int rec_prefree_segments; 913 914 /* for batched trimming */ 915 unsigned int trim_sections; /* # of sections to trim */ 916 917 struct list_head sit_entry_set; /* sit entry set list */ 918 919 unsigned int ipu_policy; /* in-place-update policy */ 920 unsigned int min_ipu_util; /* in-place-update threshold */ 921 unsigned int min_fsync_blocks; /* threshold for fsync */ 922 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 923 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 924 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 925 926 /* for flush command control */ 927 struct flush_cmd_control *fcc_info; 928 929 /* for discard command control */ 930 struct discard_cmd_control *dcc_info; 931 }; 932 933 /* 934 * For superblock 935 */ 936 /* 937 * COUNT_TYPE for monitoring 938 * 939 * f2fs monitors the number of several block types such as on-writeback, 940 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 941 */ 942 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 943 enum count_type { 944 F2FS_DIRTY_DENTS, 945 F2FS_DIRTY_DATA, 946 F2FS_DIRTY_QDATA, 947 F2FS_DIRTY_NODES, 948 F2FS_DIRTY_META, 949 F2FS_INMEM_PAGES, 950 F2FS_DIRTY_IMETA, 951 F2FS_WB_CP_DATA, 952 F2FS_WB_DATA, 953 F2FS_RD_DATA, 954 F2FS_RD_NODE, 955 F2FS_RD_META, 956 F2FS_DIO_WRITE, 957 F2FS_DIO_READ, 958 NR_COUNT_TYPE, 959 }; 960 961 /* 962 * The below are the page types of bios used in submit_bio(). 963 * The available types are: 964 * DATA User data pages. It operates as async mode. 965 * NODE Node pages. It operates as async mode. 966 * META FS metadata pages such as SIT, NAT, CP. 967 * NR_PAGE_TYPE The number of page types. 968 * META_FLUSH Make sure the previous pages are written 969 * with waiting the bio's completion 970 * ... Only can be used with META. 971 */ 972 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 973 enum page_type { 974 DATA, 975 NODE, 976 META, 977 NR_PAGE_TYPE, 978 META_FLUSH, 979 INMEM, /* the below types are used by tracepoints only. */ 980 INMEM_DROP, 981 INMEM_INVALIDATE, 982 INMEM_REVOKE, 983 IPU, 984 OPU, 985 }; 986 987 enum temp_type { 988 HOT = 0, /* must be zero for meta bio */ 989 WARM, 990 COLD, 991 NR_TEMP_TYPE, 992 }; 993 994 enum need_lock_type { 995 LOCK_REQ = 0, 996 LOCK_DONE, 997 LOCK_RETRY, 998 }; 999 1000 enum cp_reason_type { 1001 CP_NO_NEEDED, 1002 CP_NON_REGULAR, 1003 CP_HARDLINK, 1004 CP_SB_NEED_CP, 1005 CP_WRONG_PINO, 1006 CP_NO_SPC_ROLL, 1007 CP_NODE_NEED_CP, 1008 CP_FASTBOOT_MODE, 1009 CP_SPEC_LOG_NUM, 1010 CP_RECOVER_DIR, 1011 }; 1012 1013 enum iostat_type { 1014 APP_DIRECT_IO, /* app direct IOs */ 1015 APP_BUFFERED_IO, /* app buffered IOs */ 1016 APP_WRITE_IO, /* app write IOs */ 1017 APP_MAPPED_IO, /* app mapped IOs */ 1018 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1019 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1020 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1021 FS_GC_DATA_IO, /* data IOs from forground gc */ 1022 FS_GC_NODE_IO, /* node IOs from forground gc */ 1023 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1024 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1025 FS_CP_META_IO, /* meta IOs from checkpoint */ 1026 FS_DISCARD, /* discard */ 1027 NR_IO_TYPE, 1028 }; 1029 1030 struct f2fs_io_info { 1031 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1032 nid_t ino; /* inode number */ 1033 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1034 enum temp_type temp; /* contains HOT/WARM/COLD */ 1035 int op; /* contains REQ_OP_ */ 1036 int op_flags; /* req_flag_bits */ 1037 block_t new_blkaddr; /* new block address to be written */ 1038 block_t old_blkaddr; /* old block address before Cow */ 1039 struct page *page; /* page to be written */ 1040 struct page *encrypted_page; /* encrypted page */ 1041 struct list_head list; /* serialize IOs */ 1042 bool submitted; /* indicate IO submission */ 1043 int need_lock; /* indicate we need to lock cp_rwsem */ 1044 bool in_list; /* indicate fio is in io_list */ 1045 bool is_meta; /* indicate borrow meta inode mapping or not */ 1046 bool retry; /* need to reallocate block address */ 1047 enum iostat_type io_type; /* io type */ 1048 struct writeback_control *io_wbc; /* writeback control */ 1049 unsigned char version; /* version of the node */ 1050 }; 1051 1052 #define is_read_io(rw) ((rw) == READ) 1053 struct f2fs_bio_info { 1054 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1055 struct bio *bio; /* bios to merge */ 1056 sector_t last_block_in_bio; /* last block number */ 1057 struct f2fs_io_info fio; /* store buffered io info. */ 1058 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1059 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1060 struct list_head io_list; /* track fios */ 1061 }; 1062 1063 #define FDEV(i) (sbi->devs[i]) 1064 #define RDEV(i) (raw_super->devs[i]) 1065 struct f2fs_dev_info { 1066 struct block_device *bdev; 1067 char path[MAX_PATH_LEN]; 1068 unsigned int total_segments; 1069 block_t start_blk; 1070 block_t end_blk; 1071 #ifdef CONFIG_BLK_DEV_ZONED 1072 unsigned int nr_blkz; /* Total number of zones */ 1073 u8 *blkz_type; /* Array of zones type */ 1074 #endif 1075 }; 1076 1077 enum inode_type { 1078 DIR_INODE, /* for dirty dir inode */ 1079 FILE_INODE, /* for dirty regular/symlink inode */ 1080 DIRTY_META, /* for all dirtied inode metadata */ 1081 ATOMIC_FILE, /* for all atomic files */ 1082 NR_INODE_TYPE, 1083 }; 1084 1085 /* for inner inode cache management */ 1086 struct inode_management { 1087 struct radix_tree_root ino_root; /* ino entry array */ 1088 spinlock_t ino_lock; /* for ino entry lock */ 1089 struct list_head ino_list; /* inode list head */ 1090 unsigned long ino_num; /* number of entries */ 1091 }; 1092 1093 /* For s_flag in struct f2fs_sb_info */ 1094 enum { 1095 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1096 SBI_IS_CLOSE, /* specify unmounting */ 1097 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1098 SBI_POR_DOING, /* recovery is doing or not */ 1099 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1100 SBI_NEED_CP, /* need to checkpoint */ 1101 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1102 SBI_IS_RECOVERED, /* recovered orphan/data */ 1103 SBI_CP_DISABLED, /* CP was disabled last mount */ 1104 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ 1105 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1106 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1107 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1108 }; 1109 1110 enum { 1111 CP_TIME, 1112 REQ_TIME, 1113 DISCARD_TIME, 1114 GC_TIME, 1115 DISABLE_TIME, 1116 UMOUNT_DISCARD_TIMEOUT, 1117 MAX_TIME, 1118 }; 1119 1120 enum { 1121 GC_NORMAL, 1122 GC_IDLE_CB, 1123 GC_IDLE_GREEDY, 1124 GC_URGENT, 1125 }; 1126 1127 enum { 1128 WHINT_MODE_OFF, /* not pass down write hints */ 1129 WHINT_MODE_USER, /* try to pass down hints given by users */ 1130 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1131 }; 1132 1133 enum { 1134 ALLOC_MODE_DEFAULT, /* stay default */ 1135 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1136 }; 1137 1138 enum fsync_mode { 1139 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1140 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1141 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1142 }; 1143 1144 #ifdef CONFIG_F2FS_FS_ENCRYPTION 1145 #define DUMMY_ENCRYPTION_ENABLED(sbi) \ 1146 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption)) 1147 #else 1148 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0) 1149 #endif 1150 1151 struct f2fs_sb_info { 1152 struct super_block *sb; /* pointer to VFS super block */ 1153 struct proc_dir_entry *s_proc; /* proc entry */ 1154 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1155 struct rw_semaphore sb_lock; /* lock for raw super block */ 1156 int valid_super_block; /* valid super block no */ 1157 unsigned long s_flag; /* flags for sbi */ 1158 struct mutex writepages; /* mutex for writepages() */ 1159 1160 #ifdef CONFIG_BLK_DEV_ZONED 1161 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1162 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1163 #endif 1164 1165 /* for node-related operations */ 1166 struct f2fs_nm_info *nm_info; /* node manager */ 1167 struct inode *node_inode; /* cache node blocks */ 1168 1169 /* for segment-related operations */ 1170 struct f2fs_sm_info *sm_info; /* segment manager */ 1171 1172 /* for bio operations */ 1173 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1174 /* keep migration IO order for LFS mode */ 1175 struct rw_semaphore io_order_lock; 1176 mempool_t *write_io_dummy; /* Dummy pages */ 1177 1178 /* for checkpoint */ 1179 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1180 int cur_cp_pack; /* remain current cp pack */ 1181 spinlock_t cp_lock; /* for flag in ckpt */ 1182 struct inode *meta_inode; /* cache meta blocks */ 1183 struct mutex cp_mutex; /* checkpoint procedure lock */ 1184 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1185 struct rw_semaphore node_write; /* locking node writes */ 1186 struct rw_semaphore node_change; /* locking node change */ 1187 wait_queue_head_t cp_wait; 1188 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1189 long interval_time[MAX_TIME]; /* to store thresholds */ 1190 1191 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1192 1193 spinlock_t fsync_node_lock; /* for node entry lock */ 1194 struct list_head fsync_node_list; /* node list head */ 1195 unsigned int fsync_seg_id; /* sequence id */ 1196 unsigned int fsync_node_num; /* number of node entries */ 1197 1198 /* for orphan inode, use 0'th array */ 1199 unsigned int max_orphans; /* max orphan inodes */ 1200 1201 /* for inode management */ 1202 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1203 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1204 1205 /* for extent tree cache */ 1206 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1207 struct mutex extent_tree_lock; /* locking extent radix tree */ 1208 struct list_head extent_list; /* lru list for shrinker */ 1209 spinlock_t extent_lock; /* locking extent lru list */ 1210 atomic_t total_ext_tree; /* extent tree count */ 1211 struct list_head zombie_list; /* extent zombie tree list */ 1212 atomic_t total_zombie_tree; /* extent zombie tree count */ 1213 atomic_t total_ext_node; /* extent info count */ 1214 1215 /* basic filesystem units */ 1216 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1217 unsigned int log_blocksize; /* log2 block size */ 1218 unsigned int blocksize; /* block size */ 1219 unsigned int root_ino_num; /* root inode number*/ 1220 unsigned int node_ino_num; /* node inode number*/ 1221 unsigned int meta_ino_num; /* meta inode number*/ 1222 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1223 unsigned int blocks_per_seg; /* blocks per segment */ 1224 unsigned int segs_per_sec; /* segments per section */ 1225 unsigned int secs_per_zone; /* sections per zone */ 1226 unsigned int total_sections; /* total section count */ 1227 unsigned int total_node_count; /* total node block count */ 1228 unsigned int total_valid_node_count; /* valid node block count */ 1229 loff_t max_file_blocks; /* max block index of file */ 1230 int dir_level; /* directory level */ 1231 int readdir_ra; /* readahead inode in readdir */ 1232 1233 block_t user_block_count; /* # of user blocks */ 1234 block_t total_valid_block_count; /* # of valid blocks */ 1235 block_t discard_blks; /* discard command candidats */ 1236 block_t last_valid_block_count; /* for recovery */ 1237 block_t reserved_blocks; /* configurable reserved blocks */ 1238 block_t current_reserved_blocks; /* current reserved blocks */ 1239 1240 /* Additional tracking for no checkpoint mode */ 1241 block_t unusable_block_count; /* # of blocks saved by last cp */ 1242 1243 unsigned int nquota_files; /* # of quota sysfile */ 1244 1245 /* # of pages, see count_type */ 1246 atomic_t nr_pages[NR_COUNT_TYPE]; 1247 /* # of allocated blocks */ 1248 struct percpu_counter alloc_valid_block_count; 1249 1250 /* writeback control */ 1251 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1252 1253 /* valid inode count */ 1254 struct percpu_counter total_valid_inode_count; 1255 1256 struct f2fs_mount_info mount_opt; /* mount options */ 1257 1258 /* for cleaning operations */ 1259 struct mutex gc_mutex; /* mutex for GC */ 1260 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1261 unsigned int cur_victim_sec; /* current victim section num */ 1262 unsigned int gc_mode; /* current GC state */ 1263 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1264 /* for skip statistic */ 1265 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1266 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1267 1268 /* threshold for gc trials on pinned files */ 1269 u64 gc_pin_file_threshold; 1270 1271 /* maximum # of trials to find a victim segment for SSR and GC */ 1272 unsigned int max_victim_search; 1273 /* migration granularity of garbage collection, unit: segment */ 1274 unsigned int migration_granularity; 1275 1276 /* 1277 * for stat information. 1278 * one is for the LFS mode, and the other is for the SSR mode. 1279 */ 1280 #ifdef CONFIG_F2FS_STAT_FS 1281 struct f2fs_stat_info *stat_info; /* FS status information */ 1282 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1283 unsigned int segment_count[2]; /* # of allocated segments */ 1284 unsigned int block_count[2]; /* # of allocated blocks */ 1285 atomic_t inplace_count; /* # of inplace update */ 1286 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1287 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1288 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1289 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1290 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1291 atomic_t inline_inode; /* # of inline_data inodes */ 1292 atomic_t inline_dir; /* # of inline_dentry inodes */ 1293 atomic_t aw_cnt; /* # of atomic writes */ 1294 atomic_t vw_cnt; /* # of volatile writes */ 1295 atomic_t max_aw_cnt; /* max # of atomic writes */ 1296 atomic_t max_vw_cnt; /* max # of volatile writes */ 1297 int bg_gc; /* background gc calls */ 1298 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1299 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1300 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1301 #endif 1302 spinlock_t stat_lock; /* lock for stat operations */ 1303 1304 /* For app/fs IO statistics */ 1305 spinlock_t iostat_lock; 1306 unsigned long long write_iostat[NR_IO_TYPE]; 1307 bool iostat_enable; 1308 1309 /* For sysfs suppport */ 1310 struct kobject s_kobj; 1311 struct completion s_kobj_unregister; 1312 1313 /* For shrinker support */ 1314 struct list_head s_list; 1315 int s_ndevs; /* number of devices */ 1316 struct f2fs_dev_info *devs; /* for device list */ 1317 unsigned int dirty_device; /* for checkpoint data flush */ 1318 spinlock_t dev_lock; /* protect dirty_device */ 1319 struct mutex umount_mutex; 1320 unsigned int shrinker_run_no; 1321 1322 /* For write statistics */ 1323 u64 sectors_written_start; 1324 u64 kbytes_written; 1325 1326 /* Reference to checksum algorithm driver via cryptoapi */ 1327 struct crypto_shash *s_chksum_driver; 1328 1329 /* Precomputed FS UUID checksum for seeding other checksums */ 1330 __u32 s_chksum_seed; 1331 }; 1332 1333 struct f2fs_private_dio { 1334 struct inode *inode; 1335 void *orig_private; 1336 bio_end_io_t *orig_end_io; 1337 bool write; 1338 }; 1339 1340 #ifdef CONFIG_F2FS_FAULT_INJECTION 1341 #define f2fs_show_injection_info(type) \ 1342 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \ 1343 KERN_INFO, f2fs_fault_name[type], \ 1344 __func__, __builtin_return_address(0)) 1345 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1346 { 1347 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1348 1349 if (!ffi->inject_rate) 1350 return false; 1351 1352 if (!IS_FAULT_SET(ffi, type)) 1353 return false; 1354 1355 atomic_inc(&ffi->inject_ops); 1356 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1357 atomic_set(&ffi->inject_ops, 0); 1358 return true; 1359 } 1360 return false; 1361 } 1362 #else 1363 #define f2fs_show_injection_info(type) do { } while (0) 1364 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1365 { 1366 return false; 1367 } 1368 #endif 1369 1370 /* For write statistics. Suppose sector size is 512 bytes, 1371 * and the return value is in kbytes. s is of struct f2fs_sb_info. 1372 */ 1373 #define BD_PART_WRITTEN(s) \ 1374 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \ 1375 (s)->sectors_written_start) >> 1) 1376 1377 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1378 { 1379 unsigned long now = jiffies; 1380 1381 sbi->last_time[type] = now; 1382 1383 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1384 if (type == REQ_TIME) { 1385 sbi->last_time[DISCARD_TIME] = now; 1386 sbi->last_time[GC_TIME] = now; 1387 } 1388 } 1389 1390 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1391 { 1392 unsigned long interval = sbi->interval_time[type] * HZ; 1393 1394 return time_after(jiffies, sbi->last_time[type] + interval); 1395 } 1396 1397 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1398 int type) 1399 { 1400 unsigned long interval = sbi->interval_time[type] * HZ; 1401 unsigned int wait_ms = 0; 1402 long delta; 1403 1404 delta = (sbi->last_time[type] + interval) - jiffies; 1405 if (delta > 0) 1406 wait_ms = jiffies_to_msecs(delta); 1407 1408 return wait_ms; 1409 } 1410 1411 /* 1412 * Inline functions 1413 */ 1414 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1415 const void *address, unsigned int length) 1416 { 1417 struct { 1418 struct shash_desc shash; 1419 char ctx[4]; 1420 } desc; 1421 int err; 1422 1423 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1424 1425 desc.shash.tfm = sbi->s_chksum_driver; 1426 desc.shash.flags = 0; 1427 *(u32 *)desc.ctx = crc; 1428 1429 err = crypto_shash_update(&desc.shash, address, length); 1430 BUG_ON(err); 1431 1432 return *(u32 *)desc.ctx; 1433 } 1434 1435 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1436 unsigned int length) 1437 { 1438 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1439 } 1440 1441 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1442 void *buf, size_t buf_size) 1443 { 1444 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1445 } 1446 1447 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1448 const void *address, unsigned int length) 1449 { 1450 return __f2fs_crc32(sbi, crc, address, length); 1451 } 1452 1453 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1454 { 1455 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1456 } 1457 1458 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1459 { 1460 return sb->s_fs_info; 1461 } 1462 1463 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1464 { 1465 return F2FS_SB(inode->i_sb); 1466 } 1467 1468 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1469 { 1470 return F2FS_I_SB(mapping->host); 1471 } 1472 1473 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1474 { 1475 return F2FS_M_SB(page->mapping); 1476 } 1477 1478 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1479 { 1480 return (struct f2fs_super_block *)(sbi->raw_super); 1481 } 1482 1483 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1484 { 1485 return (struct f2fs_checkpoint *)(sbi->ckpt); 1486 } 1487 1488 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1489 { 1490 return (struct f2fs_node *)page_address(page); 1491 } 1492 1493 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1494 { 1495 return &((struct f2fs_node *)page_address(page))->i; 1496 } 1497 1498 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1499 { 1500 return (struct f2fs_nm_info *)(sbi->nm_info); 1501 } 1502 1503 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1504 { 1505 return (struct f2fs_sm_info *)(sbi->sm_info); 1506 } 1507 1508 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1509 { 1510 return (struct sit_info *)(SM_I(sbi)->sit_info); 1511 } 1512 1513 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1514 { 1515 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1516 } 1517 1518 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1519 { 1520 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1521 } 1522 1523 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1524 { 1525 return sbi->meta_inode->i_mapping; 1526 } 1527 1528 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1529 { 1530 return sbi->node_inode->i_mapping; 1531 } 1532 1533 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1534 { 1535 return test_bit(type, &sbi->s_flag); 1536 } 1537 1538 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1539 { 1540 set_bit(type, &sbi->s_flag); 1541 } 1542 1543 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1544 { 1545 clear_bit(type, &sbi->s_flag); 1546 } 1547 1548 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1549 { 1550 return le64_to_cpu(cp->checkpoint_ver); 1551 } 1552 1553 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1554 { 1555 if (type < F2FS_MAX_QUOTAS) 1556 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1557 return 0; 1558 } 1559 1560 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1561 { 1562 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1563 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1564 } 1565 1566 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1567 { 1568 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1569 1570 return ckpt_flags & f; 1571 } 1572 1573 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1574 { 1575 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1576 } 1577 1578 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1579 { 1580 unsigned int ckpt_flags; 1581 1582 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1583 ckpt_flags |= f; 1584 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1585 } 1586 1587 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1588 { 1589 unsigned long flags; 1590 1591 spin_lock_irqsave(&sbi->cp_lock, flags); 1592 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1593 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1594 } 1595 1596 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1597 { 1598 unsigned int ckpt_flags; 1599 1600 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1601 ckpt_flags &= (~f); 1602 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1603 } 1604 1605 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1606 { 1607 unsigned long flags; 1608 1609 spin_lock_irqsave(&sbi->cp_lock, flags); 1610 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1611 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1612 } 1613 1614 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1615 { 1616 unsigned long flags; 1617 1618 /* 1619 * In order to re-enable nat_bits we need to call fsck.f2fs by 1620 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1621 * so let's rely on regular fsck or unclean shutdown. 1622 */ 1623 1624 if (lock) 1625 spin_lock_irqsave(&sbi->cp_lock, flags); 1626 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 1627 kvfree(NM_I(sbi)->nat_bits); 1628 NM_I(sbi)->nat_bits = NULL; 1629 if (lock) 1630 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1631 } 1632 1633 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 1634 struct cp_control *cpc) 1635 { 1636 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 1637 1638 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 1639 } 1640 1641 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 1642 { 1643 down_read(&sbi->cp_rwsem); 1644 } 1645 1646 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 1647 { 1648 return down_read_trylock(&sbi->cp_rwsem); 1649 } 1650 1651 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 1652 { 1653 up_read(&sbi->cp_rwsem); 1654 } 1655 1656 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 1657 { 1658 down_write(&sbi->cp_rwsem); 1659 } 1660 1661 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 1662 { 1663 up_write(&sbi->cp_rwsem); 1664 } 1665 1666 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 1667 { 1668 int reason = CP_SYNC; 1669 1670 if (test_opt(sbi, FASTBOOT)) 1671 reason = CP_FASTBOOT; 1672 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 1673 reason = CP_UMOUNT; 1674 return reason; 1675 } 1676 1677 static inline bool __remain_node_summaries(int reason) 1678 { 1679 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 1680 } 1681 1682 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 1683 { 1684 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 1685 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 1686 } 1687 1688 /* 1689 * Check whether the inode has blocks or not 1690 */ 1691 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 1692 { 1693 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 1694 1695 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 1696 } 1697 1698 static inline bool f2fs_has_xattr_block(unsigned int ofs) 1699 { 1700 return ofs == XATTR_NODE_OFFSET; 1701 } 1702 1703 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 1704 struct inode *inode, bool cap) 1705 { 1706 if (!inode) 1707 return true; 1708 if (!test_opt(sbi, RESERVE_ROOT)) 1709 return false; 1710 if (IS_NOQUOTA(inode)) 1711 return true; 1712 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 1713 return true; 1714 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 1715 in_group_p(F2FS_OPTION(sbi).s_resgid)) 1716 return true; 1717 if (cap && capable(CAP_SYS_RESOURCE)) 1718 return true; 1719 return false; 1720 } 1721 1722 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 1723 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 1724 struct inode *inode, blkcnt_t *count) 1725 { 1726 blkcnt_t diff = 0, release = 0; 1727 block_t avail_user_block_count; 1728 int ret; 1729 1730 ret = dquot_reserve_block(inode, *count); 1731 if (ret) 1732 return ret; 1733 1734 if (time_to_inject(sbi, FAULT_BLOCK)) { 1735 f2fs_show_injection_info(FAULT_BLOCK); 1736 release = *count; 1737 goto enospc; 1738 } 1739 1740 /* 1741 * let's increase this in prior to actual block count change in order 1742 * for f2fs_sync_file to avoid data races when deciding checkpoint. 1743 */ 1744 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 1745 1746 spin_lock(&sbi->stat_lock); 1747 sbi->total_valid_block_count += (block_t)(*count); 1748 avail_user_block_count = sbi->user_block_count - 1749 sbi->current_reserved_blocks; 1750 1751 if (!__allow_reserved_blocks(sbi, inode, true)) 1752 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 1753 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1754 avail_user_block_count -= sbi->unusable_block_count; 1755 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 1756 diff = sbi->total_valid_block_count - avail_user_block_count; 1757 if (diff > *count) 1758 diff = *count; 1759 *count -= diff; 1760 release = diff; 1761 sbi->total_valid_block_count -= diff; 1762 if (!*count) { 1763 spin_unlock(&sbi->stat_lock); 1764 goto enospc; 1765 } 1766 } 1767 spin_unlock(&sbi->stat_lock); 1768 1769 if (unlikely(release)) { 1770 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1771 dquot_release_reservation_block(inode, release); 1772 } 1773 f2fs_i_blocks_write(inode, *count, true, true); 1774 return 0; 1775 1776 enospc: 1777 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1778 dquot_release_reservation_block(inode, release); 1779 return -ENOSPC; 1780 } 1781 1782 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 1783 struct inode *inode, 1784 block_t count) 1785 { 1786 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 1787 1788 spin_lock(&sbi->stat_lock); 1789 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 1790 f2fs_bug_on(sbi, inode->i_blocks < sectors); 1791 sbi->total_valid_block_count -= (block_t)count; 1792 if (sbi->reserved_blocks && 1793 sbi->current_reserved_blocks < sbi->reserved_blocks) 1794 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 1795 sbi->current_reserved_blocks + count); 1796 spin_unlock(&sbi->stat_lock); 1797 f2fs_i_blocks_write(inode, count, false, true); 1798 } 1799 1800 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 1801 { 1802 atomic_inc(&sbi->nr_pages[count_type]); 1803 1804 if (count_type == F2FS_DIRTY_DENTS || 1805 count_type == F2FS_DIRTY_NODES || 1806 count_type == F2FS_DIRTY_META || 1807 count_type == F2FS_DIRTY_QDATA || 1808 count_type == F2FS_DIRTY_IMETA) 1809 set_sbi_flag(sbi, SBI_IS_DIRTY); 1810 } 1811 1812 static inline void inode_inc_dirty_pages(struct inode *inode) 1813 { 1814 atomic_inc(&F2FS_I(inode)->dirty_pages); 1815 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1816 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1817 if (IS_NOQUOTA(inode)) 1818 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1819 } 1820 1821 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 1822 { 1823 atomic_dec(&sbi->nr_pages[count_type]); 1824 } 1825 1826 static inline void inode_dec_dirty_pages(struct inode *inode) 1827 { 1828 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 1829 !S_ISLNK(inode->i_mode)) 1830 return; 1831 1832 atomic_dec(&F2FS_I(inode)->dirty_pages); 1833 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1834 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1835 if (IS_NOQUOTA(inode)) 1836 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1837 } 1838 1839 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 1840 { 1841 return atomic_read(&sbi->nr_pages[count_type]); 1842 } 1843 1844 static inline int get_dirty_pages(struct inode *inode) 1845 { 1846 return atomic_read(&F2FS_I(inode)->dirty_pages); 1847 } 1848 1849 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 1850 { 1851 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 1852 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 1853 sbi->log_blocks_per_seg; 1854 1855 return segs / sbi->segs_per_sec; 1856 } 1857 1858 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 1859 { 1860 return sbi->total_valid_block_count; 1861 } 1862 1863 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 1864 { 1865 return sbi->discard_blks; 1866 } 1867 1868 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 1869 { 1870 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1871 1872 /* return NAT or SIT bitmap */ 1873 if (flag == NAT_BITMAP) 1874 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 1875 else if (flag == SIT_BITMAP) 1876 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 1877 1878 return 0; 1879 } 1880 1881 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 1882 { 1883 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 1884 } 1885 1886 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 1887 { 1888 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1889 int offset; 1890 1891 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 1892 offset = (flag == SIT_BITMAP) ? 1893 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 1894 return &ckpt->sit_nat_version_bitmap + offset; 1895 } 1896 1897 if (__cp_payload(sbi) > 0) { 1898 if (flag == NAT_BITMAP) 1899 return &ckpt->sit_nat_version_bitmap; 1900 else 1901 return (unsigned char *)ckpt + F2FS_BLKSIZE; 1902 } else { 1903 offset = (flag == NAT_BITMAP) ? 1904 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 1905 return &ckpt->sit_nat_version_bitmap + offset; 1906 } 1907 } 1908 1909 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 1910 { 1911 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1912 1913 if (sbi->cur_cp_pack == 2) 1914 start_addr += sbi->blocks_per_seg; 1915 return start_addr; 1916 } 1917 1918 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 1919 { 1920 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1921 1922 if (sbi->cur_cp_pack == 1) 1923 start_addr += sbi->blocks_per_seg; 1924 return start_addr; 1925 } 1926 1927 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 1928 { 1929 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 1930 } 1931 1932 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 1933 { 1934 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 1935 } 1936 1937 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 1938 struct inode *inode, bool is_inode) 1939 { 1940 block_t valid_block_count; 1941 unsigned int valid_node_count; 1942 int err; 1943 1944 if (is_inode) { 1945 if (inode) { 1946 err = dquot_alloc_inode(inode); 1947 if (err) 1948 return err; 1949 } 1950 } else { 1951 err = dquot_reserve_block(inode, 1); 1952 if (err) 1953 return err; 1954 } 1955 1956 if (time_to_inject(sbi, FAULT_BLOCK)) { 1957 f2fs_show_injection_info(FAULT_BLOCK); 1958 goto enospc; 1959 } 1960 1961 spin_lock(&sbi->stat_lock); 1962 1963 valid_block_count = sbi->total_valid_block_count + 1964 sbi->current_reserved_blocks + 1; 1965 1966 if (!__allow_reserved_blocks(sbi, inode, false)) 1967 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 1968 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1969 valid_block_count += sbi->unusable_block_count; 1970 1971 if (unlikely(valid_block_count > sbi->user_block_count)) { 1972 spin_unlock(&sbi->stat_lock); 1973 goto enospc; 1974 } 1975 1976 valid_node_count = sbi->total_valid_node_count + 1; 1977 if (unlikely(valid_node_count > sbi->total_node_count)) { 1978 spin_unlock(&sbi->stat_lock); 1979 goto enospc; 1980 } 1981 1982 sbi->total_valid_node_count++; 1983 sbi->total_valid_block_count++; 1984 spin_unlock(&sbi->stat_lock); 1985 1986 if (inode) { 1987 if (is_inode) 1988 f2fs_mark_inode_dirty_sync(inode, true); 1989 else 1990 f2fs_i_blocks_write(inode, 1, true, true); 1991 } 1992 1993 percpu_counter_inc(&sbi->alloc_valid_block_count); 1994 return 0; 1995 1996 enospc: 1997 if (is_inode) { 1998 if (inode) 1999 dquot_free_inode(inode); 2000 } else { 2001 dquot_release_reservation_block(inode, 1); 2002 } 2003 return -ENOSPC; 2004 } 2005 2006 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2007 struct inode *inode, bool is_inode) 2008 { 2009 spin_lock(&sbi->stat_lock); 2010 2011 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2012 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2013 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks); 2014 2015 sbi->total_valid_node_count--; 2016 sbi->total_valid_block_count--; 2017 if (sbi->reserved_blocks && 2018 sbi->current_reserved_blocks < sbi->reserved_blocks) 2019 sbi->current_reserved_blocks++; 2020 2021 spin_unlock(&sbi->stat_lock); 2022 2023 if (is_inode) 2024 dquot_free_inode(inode); 2025 else 2026 f2fs_i_blocks_write(inode, 1, false, true); 2027 } 2028 2029 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2030 { 2031 return sbi->total_valid_node_count; 2032 } 2033 2034 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2035 { 2036 percpu_counter_inc(&sbi->total_valid_inode_count); 2037 } 2038 2039 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2040 { 2041 percpu_counter_dec(&sbi->total_valid_inode_count); 2042 } 2043 2044 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2045 { 2046 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2047 } 2048 2049 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2050 pgoff_t index, bool for_write) 2051 { 2052 struct page *page; 2053 2054 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2055 if (!for_write) 2056 page = find_get_page_flags(mapping, index, 2057 FGP_LOCK | FGP_ACCESSED); 2058 else 2059 page = find_lock_page(mapping, index); 2060 if (page) 2061 return page; 2062 2063 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2064 f2fs_show_injection_info(FAULT_PAGE_ALLOC); 2065 return NULL; 2066 } 2067 } 2068 2069 if (!for_write) 2070 return grab_cache_page(mapping, index); 2071 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2072 } 2073 2074 static inline struct page *f2fs_pagecache_get_page( 2075 struct address_space *mapping, pgoff_t index, 2076 int fgp_flags, gfp_t gfp_mask) 2077 { 2078 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2079 f2fs_show_injection_info(FAULT_PAGE_GET); 2080 return NULL; 2081 } 2082 2083 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2084 } 2085 2086 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2087 { 2088 char *src_kaddr = kmap(src); 2089 char *dst_kaddr = kmap(dst); 2090 2091 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2092 kunmap(dst); 2093 kunmap(src); 2094 } 2095 2096 static inline void f2fs_put_page(struct page *page, int unlock) 2097 { 2098 if (!page) 2099 return; 2100 2101 if (unlock) { 2102 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2103 unlock_page(page); 2104 } 2105 put_page(page); 2106 } 2107 2108 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2109 { 2110 if (dn->node_page) 2111 f2fs_put_page(dn->node_page, 1); 2112 if (dn->inode_page && dn->node_page != dn->inode_page) 2113 f2fs_put_page(dn->inode_page, 0); 2114 dn->node_page = NULL; 2115 dn->inode_page = NULL; 2116 } 2117 2118 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2119 size_t size) 2120 { 2121 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2122 } 2123 2124 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2125 gfp_t flags) 2126 { 2127 void *entry; 2128 2129 entry = kmem_cache_alloc(cachep, flags); 2130 if (!entry) 2131 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2132 return entry; 2133 } 2134 2135 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, 2136 int npages, bool no_fail) 2137 { 2138 struct bio *bio; 2139 2140 if (no_fail) { 2141 /* No failure on bio allocation */ 2142 bio = bio_alloc(GFP_NOIO, npages); 2143 if (!bio) 2144 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); 2145 return bio; 2146 } 2147 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) { 2148 f2fs_show_injection_info(FAULT_ALLOC_BIO); 2149 return NULL; 2150 } 2151 2152 return bio_alloc(GFP_KERNEL, npages); 2153 } 2154 2155 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2156 { 2157 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2158 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2159 get_pages(sbi, F2FS_WB_CP_DATA) || 2160 get_pages(sbi, F2FS_DIO_READ) || 2161 get_pages(sbi, F2FS_DIO_WRITE)) 2162 return false; 2163 2164 if (SM_I(sbi) && SM_I(sbi)->dcc_info && 2165 atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) 2166 return false; 2167 2168 if (SM_I(sbi) && SM_I(sbi)->fcc_info && 2169 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2170 return false; 2171 2172 return f2fs_time_over(sbi, type); 2173 } 2174 2175 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2176 unsigned long index, void *item) 2177 { 2178 while (radix_tree_insert(root, index, item)) 2179 cond_resched(); 2180 } 2181 2182 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2183 2184 static inline bool IS_INODE(struct page *page) 2185 { 2186 struct f2fs_node *p = F2FS_NODE(page); 2187 2188 return RAW_IS_INODE(p); 2189 } 2190 2191 static inline int offset_in_addr(struct f2fs_inode *i) 2192 { 2193 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2194 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2195 } 2196 2197 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2198 { 2199 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2200 } 2201 2202 static inline int f2fs_has_extra_attr(struct inode *inode); 2203 static inline block_t datablock_addr(struct inode *inode, 2204 struct page *node_page, unsigned int offset) 2205 { 2206 struct f2fs_node *raw_node; 2207 __le32 *addr_array; 2208 int base = 0; 2209 bool is_inode = IS_INODE(node_page); 2210 2211 raw_node = F2FS_NODE(node_page); 2212 2213 /* from GC path only */ 2214 if (is_inode) { 2215 if (!inode) 2216 base = offset_in_addr(&raw_node->i); 2217 else if (f2fs_has_extra_attr(inode)) 2218 base = get_extra_isize(inode); 2219 } 2220 2221 addr_array = blkaddr_in_node(raw_node); 2222 return le32_to_cpu(addr_array[base + offset]); 2223 } 2224 2225 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2226 { 2227 int mask; 2228 2229 addr += (nr >> 3); 2230 mask = 1 << (7 - (nr & 0x07)); 2231 return mask & *addr; 2232 } 2233 2234 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2235 { 2236 int mask; 2237 2238 addr += (nr >> 3); 2239 mask = 1 << (7 - (nr & 0x07)); 2240 *addr |= mask; 2241 } 2242 2243 static inline void f2fs_clear_bit(unsigned int nr, char *addr) 2244 { 2245 int mask; 2246 2247 addr += (nr >> 3); 2248 mask = 1 << (7 - (nr & 0x07)); 2249 *addr &= ~mask; 2250 } 2251 2252 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2253 { 2254 int mask; 2255 int ret; 2256 2257 addr += (nr >> 3); 2258 mask = 1 << (7 - (nr & 0x07)); 2259 ret = mask & *addr; 2260 *addr |= mask; 2261 return ret; 2262 } 2263 2264 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2265 { 2266 int mask; 2267 int ret; 2268 2269 addr += (nr >> 3); 2270 mask = 1 << (7 - (nr & 0x07)); 2271 ret = mask & *addr; 2272 *addr &= ~mask; 2273 return ret; 2274 } 2275 2276 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2277 { 2278 int mask; 2279 2280 addr += (nr >> 3); 2281 mask = 1 << (7 - (nr & 0x07)); 2282 *addr ^= mask; 2283 } 2284 2285 /* 2286 * Inode flags 2287 */ 2288 #define F2FS_SECRM_FL 0x00000001 /* Secure deletion */ 2289 #define F2FS_UNRM_FL 0x00000002 /* Undelete */ 2290 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2291 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2292 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2293 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2294 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2295 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2296 /* Reserved for compression usage... */ 2297 #define F2FS_DIRTY_FL 0x00000100 2298 #define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ 2299 #define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */ 2300 #define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */ 2301 /* End compression flags --- maybe not all used */ 2302 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2303 #define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */ 2304 #define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */ 2305 #define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */ 2306 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2307 #define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ 2308 #define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */ 2309 #define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */ 2310 #define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */ 2311 #define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */ 2312 #define F2FS_NOCOW_FL 0x00800000 /* Do not cow file */ 2313 #define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */ 2314 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2315 #define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */ 2316 2317 #define F2FS_FL_USER_VISIBLE 0x30CBDFFF /* User visible flags */ 2318 #define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */ 2319 2320 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */ 2321 #define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \ 2322 F2FS_IMMUTABLE_FL | \ 2323 F2FS_APPEND_FL | \ 2324 F2FS_NODUMP_FL | \ 2325 F2FS_NOATIME_FL | \ 2326 F2FS_PROJINHERIT_FL) 2327 2328 /* Flags that should be inherited by new inodes from their parent. */ 2329 #define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\ 2330 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\ 2331 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\ 2332 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\ 2333 F2FS_PROJINHERIT_FL) 2334 2335 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2336 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL)) 2337 2338 /* Flags that are appropriate for non-directories/regular files. */ 2339 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2340 2341 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2342 { 2343 if (S_ISDIR(mode)) 2344 return flags; 2345 else if (S_ISREG(mode)) 2346 return flags & F2FS_REG_FLMASK; 2347 else 2348 return flags & F2FS_OTHER_FLMASK; 2349 } 2350 2351 /* used for f2fs_inode_info->flags */ 2352 enum { 2353 FI_NEW_INODE, /* indicate newly allocated inode */ 2354 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 2355 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 2356 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 2357 FI_INC_LINK, /* need to increment i_nlink */ 2358 FI_ACL_MODE, /* indicate acl mode */ 2359 FI_NO_ALLOC, /* should not allocate any blocks */ 2360 FI_FREE_NID, /* free allocated nide */ 2361 FI_NO_EXTENT, /* not to use the extent cache */ 2362 FI_INLINE_XATTR, /* used for inline xattr */ 2363 FI_INLINE_DATA, /* used for inline data*/ 2364 FI_INLINE_DENTRY, /* used for inline dentry */ 2365 FI_APPEND_WRITE, /* inode has appended data */ 2366 FI_UPDATE_WRITE, /* inode has in-place-update data */ 2367 FI_NEED_IPU, /* used for ipu per file */ 2368 FI_ATOMIC_FILE, /* indicate atomic file */ 2369 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 2370 FI_VOLATILE_FILE, /* indicate volatile file */ 2371 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 2372 FI_DROP_CACHE, /* drop dirty page cache */ 2373 FI_DATA_EXIST, /* indicate data exists */ 2374 FI_INLINE_DOTS, /* indicate inline dot dentries */ 2375 FI_DO_DEFRAG, /* indicate defragment is running */ 2376 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 2377 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 2378 FI_HOT_DATA, /* indicate file is hot */ 2379 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 2380 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 2381 FI_PIN_FILE, /* indicate file should not be gced */ 2382 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 2383 }; 2384 2385 static inline void __mark_inode_dirty_flag(struct inode *inode, 2386 int flag, bool set) 2387 { 2388 switch (flag) { 2389 case FI_INLINE_XATTR: 2390 case FI_INLINE_DATA: 2391 case FI_INLINE_DENTRY: 2392 case FI_NEW_INODE: 2393 if (set) 2394 return; 2395 /* fall through */ 2396 case FI_DATA_EXIST: 2397 case FI_INLINE_DOTS: 2398 case FI_PIN_FILE: 2399 f2fs_mark_inode_dirty_sync(inode, true); 2400 } 2401 } 2402 2403 static inline void set_inode_flag(struct inode *inode, int flag) 2404 { 2405 if (!test_bit(flag, &F2FS_I(inode)->flags)) 2406 set_bit(flag, &F2FS_I(inode)->flags); 2407 __mark_inode_dirty_flag(inode, flag, true); 2408 } 2409 2410 static inline int is_inode_flag_set(struct inode *inode, int flag) 2411 { 2412 return test_bit(flag, &F2FS_I(inode)->flags); 2413 } 2414 2415 static inline void clear_inode_flag(struct inode *inode, int flag) 2416 { 2417 if (test_bit(flag, &F2FS_I(inode)->flags)) 2418 clear_bit(flag, &F2FS_I(inode)->flags); 2419 __mark_inode_dirty_flag(inode, flag, false); 2420 } 2421 2422 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2423 { 2424 F2FS_I(inode)->i_acl_mode = mode; 2425 set_inode_flag(inode, FI_ACL_MODE); 2426 f2fs_mark_inode_dirty_sync(inode, false); 2427 } 2428 2429 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2430 { 2431 if (inc) 2432 inc_nlink(inode); 2433 else 2434 drop_nlink(inode); 2435 f2fs_mark_inode_dirty_sync(inode, true); 2436 } 2437 2438 static inline void f2fs_i_blocks_write(struct inode *inode, 2439 block_t diff, bool add, bool claim) 2440 { 2441 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2442 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2443 2444 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2445 if (add) { 2446 if (claim) 2447 dquot_claim_block(inode, diff); 2448 else 2449 dquot_alloc_block_nofail(inode, diff); 2450 } else { 2451 dquot_free_block(inode, diff); 2452 } 2453 2454 f2fs_mark_inode_dirty_sync(inode, true); 2455 if (clean || recover) 2456 set_inode_flag(inode, FI_AUTO_RECOVER); 2457 } 2458 2459 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2460 { 2461 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2462 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2463 2464 if (i_size_read(inode) == i_size) 2465 return; 2466 2467 i_size_write(inode, i_size); 2468 f2fs_mark_inode_dirty_sync(inode, true); 2469 if (clean || recover) 2470 set_inode_flag(inode, FI_AUTO_RECOVER); 2471 } 2472 2473 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2474 { 2475 F2FS_I(inode)->i_current_depth = depth; 2476 f2fs_mark_inode_dirty_sync(inode, true); 2477 } 2478 2479 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2480 unsigned int count) 2481 { 2482 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2483 f2fs_mark_inode_dirty_sync(inode, true); 2484 } 2485 2486 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2487 { 2488 F2FS_I(inode)->i_xattr_nid = xnid; 2489 f2fs_mark_inode_dirty_sync(inode, true); 2490 } 2491 2492 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2493 { 2494 F2FS_I(inode)->i_pino = pino; 2495 f2fs_mark_inode_dirty_sync(inode, true); 2496 } 2497 2498 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2499 { 2500 struct f2fs_inode_info *fi = F2FS_I(inode); 2501 2502 if (ri->i_inline & F2FS_INLINE_XATTR) 2503 set_bit(FI_INLINE_XATTR, &fi->flags); 2504 if (ri->i_inline & F2FS_INLINE_DATA) 2505 set_bit(FI_INLINE_DATA, &fi->flags); 2506 if (ri->i_inline & F2FS_INLINE_DENTRY) 2507 set_bit(FI_INLINE_DENTRY, &fi->flags); 2508 if (ri->i_inline & F2FS_DATA_EXIST) 2509 set_bit(FI_DATA_EXIST, &fi->flags); 2510 if (ri->i_inline & F2FS_INLINE_DOTS) 2511 set_bit(FI_INLINE_DOTS, &fi->flags); 2512 if (ri->i_inline & F2FS_EXTRA_ATTR) 2513 set_bit(FI_EXTRA_ATTR, &fi->flags); 2514 if (ri->i_inline & F2FS_PIN_FILE) 2515 set_bit(FI_PIN_FILE, &fi->flags); 2516 } 2517 2518 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2519 { 2520 ri->i_inline = 0; 2521 2522 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2523 ri->i_inline |= F2FS_INLINE_XATTR; 2524 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2525 ri->i_inline |= F2FS_INLINE_DATA; 2526 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2527 ri->i_inline |= F2FS_INLINE_DENTRY; 2528 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2529 ri->i_inline |= F2FS_DATA_EXIST; 2530 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2531 ri->i_inline |= F2FS_INLINE_DOTS; 2532 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2533 ri->i_inline |= F2FS_EXTRA_ATTR; 2534 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2535 ri->i_inline |= F2FS_PIN_FILE; 2536 } 2537 2538 static inline int f2fs_has_extra_attr(struct inode *inode) 2539 { 2540 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2541 } 2542 2543 static inline int f2fs_has_inline_xattr(struct inode *inode) 2544 { 2545 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2546 } 2547 2548 static inline unsigned int addrs_per_inode(struct inode *inode) 2549 { 2550 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode); 2551 } 2552 2553 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2554 { 2555 struct f2fs_inode *ri = F2FS_INODE(page); 2556 2557 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2558 get_inline_xattr_addrs(inode)]); 2559 } 2560 2561 static inline int inline_xattr_size(struct inode *inode) 2562 { 2563 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2564 } 2565 2566 static inline int f2fs_has_inline_data(struct inode *inode) 2567 { 2568 return is_inode_flag_set(inode, FI_INLINE_DATA); 2569 } 2570 2571 static inline int f2fs_exist_data(struct inode *inode) 2572 { 2573 return is_inode_flag_set(inode, FI_DATA_EXIST); 2574 } 2575 2576 static inline int f2fs_has_inline_dots(struct inode *inode) 2577 { 2578 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2579 } 2580 2581 static inline bool f2fs_is_pinned_file(struct inode *inode) 2582 { 2583 return is_inode_flag_set(inode, FI_PIN_FILE); 2584 } 2585 2586 static inline bool f2fs_is_atomic_file(struct inode *inode) 2587 { 2588 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2589 } 2590 2591 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2592 { 2593 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 2594 } 2595 2596 static inline bool f2fs_is_volatile_file(struct inode *inode) 2597 { 2598 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 2599 } 2600 2601 static inline bool f2fs_is_first_block_written(struct inode *inode) 2602 { 2603 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 2604 } 2605 2606 static inline bool f2fs_is_drop_cache(struct inode *inode) 2607 { 2608 return is_inode_flag_set(inode, FI_DROP_CACHE); 2609 } 2610 2611 static inline void *inline_data_addr(struct inode *inode, struct page *page) 2612 { 2613 struct f2fs_inode *ri = F2FS_INODE(page); 2614 int extra_size = get_extra_isize(inode); 2615 2616 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 2617 } 2618 2619 static inline int f2fs_has_inline_dentry(struct inode *inode) 2620 { 2621 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 2622 } 2623 2624 static inline int is_file(struct inode *inode, int type) 2625 { 2626 return F2FS_I(inode)->i_advise & type; 2627 } 2628 2629 static inline void set_file(struct inode *inode, int type) 2630 { 2631 F2FS_I(inode)->i_advise |= type; 2632 f2fs_mark_inode_dirty_sync(inode, true); 2633 } 2634 2635 static inline void clear_file(struct inode *inode, int type) 2636 { 2637 F2FS_I(inode)->i_advise &= ~type; 2638 f2fs_mark_inode_dirty_sync(inode, true); 2639 } 2640 2641 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 2642 { 2643 bool ret; 2644 2645 if (dsync) { 2646 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2647 2648 spin_lock(&sbi->inode_lock[DIRTY_META]); 2649 ret = list_empty(&F2FS_I(inode)->gdirty_list); 2650 spin_unlock(&sbi->inode_lock[DIRTY_META]); 2651 return ret; 2652 } 2653 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 2654 file_keep_isize(inode) || 2655 i_size_read(inode) & ~PAGE_MASK) 2656 return false; 2657 2658 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 2659 return false; 2660 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 2661 return false; 2662 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 2663 return false; 2664 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 2665 &F2FS_I(inode)->i_crtime)) 2666 return false; 2667 2668 down_read(&F2FS_I(inode)->i_sem); 2669 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 2670 up_read(&F2FS_I(inode)->i_sem); 2671 2672 return ret; 2673 } 2674 2675 static inline bool f2fs_readonly(struct super_block *sb) 2676 { 2677 return sb_rdonly(sb); 2678 } 2679 2680 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 2681 { 2682 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 2683 } 2684 2685 static inline bool is_dot_dotdot(const struct qstr *str) 2686 { 2687 if (str->len == 1 && str->name[0] == '.') 2688 return true; 2689 2690 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') 2691 return true; 2692 2693 return false; 2694 } 2695 2696 static inline bool f2fs_may_extent_tree(struct inode *inode) 2697 { 2698 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2699 2700 if (!test_opt(sbi, EXTENT_CACHE) || 2701 is_inode_flag_set(inode, FI_NO_EXTENT)) 2702 return false; 2703 2704 /* 2705 * for recovered files during mount do not create extents 2706 * if shrinker is not registered. 2707 */ 2708 if (list_empty(&sbi->s_list)) 2709 return false; 2710 2711 return S_ISREG(inode->i_mode); 2712 } 2713 2714 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 2715 size_t size, gfp_t flags) 2716 { 2717 void *ret; 2718 2719 if (time_to_inject(sbi, FAULT_KMALLOC)) { 2720 f2fs_show_injection_info(FAULT_KMALLOC); 2721 return NULL; 2722 } 2723 2724 ret = kmalloc(size, flags); 2725 if (ret) 2726 return ret; 2727 2728 return kvmalloc(size, flags); 2729 } 2730 2731 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 2732 size_t size, gfp_t flags) 2733 { 2734 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 2735 } 2736 2737 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 2738 size_t size, gfp_t flags) 2739 { 2740 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 2741 f2fs_show_injection_info(FAULT_KVMALLOC); 2742 return NULL; 2743 } 2744 2745 return kvmalloc(size, flags); 2746 } 2747 2748 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 2749 size_t size, gfp_t flags) 2750 { 2751 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 2752 } 2753 2754 static inline int get_extra_isize(struct inode *inode) 2755 { 2756 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 2757 } 2758 2759 static inline int get_inline_xattr_addrs(struct inode *inode) 2760 { 2761 return F2FS_I(inode)->i_inline_xattr_size; 2762 } 2763 2764 #define f2fs_get_inode_mode(i) \ 2765 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 2766 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 2767 2768 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 2769 (offsetof(struct f2fs_inode, i_extra_end) - \ 2770 offsetof(struct f2fs_inode, i_extra_isize)) \ 2771 2772 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 2773 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 2774 ((offsetof(typeof(*(f2fs_inode)), field) + \ 2775 sizeof((f2fs_inode)->field)) \ 2776 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 2777 2778 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 2779 { 2780 int i; 2781 2782 spin_lock(&sbi->iostat_lock); 2783 for (i = 0; i < NR_IO_TYPE; i++) 2784 sbi->write_iostat[i] = 0; 2785 spin_unlock(&sbi->iostat_lock); 2786 } 2787 2788 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 2789 enum iostat_type type, unsigned long long io_bytes) 2790 { 2791 if (!sbi->iostat_enable) 2792 return; 2793 spin_lock(&sbi->iostat_lock); 2794 sbi->write_iostat[type] += io_bytes; 2795 2796 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 2797 sbi->write_iostat[APP_BUFFERED_IO] = 2798 sbi->write_iostat[APP_WRITE_IO] - 2799 sbi->write_iostat[APP_DIRECT_IO]; 2800 spin_unlock(&sbi->iostat_lock); 2801 } 2802 2803 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 2804 2805 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META && \ 2806 (!is_read_io((fio)->op) || (fio)->is_meta)) 2807 2808 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 2809 block_t blkaddr, int type); 2810 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2811 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 2812 block_t blkaddr, int type) 2813 { 2814 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 2815 f2fs_msg(sbi->sb, KERN_ERR, 2816 "invalid blkaddr: %u, type: %d, run fsck to fix.", 2817 blkaddr, type); 2818 f2fs_bug_on(sbi, 1); 2819 } 2820 } 2821 2822 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 2823 { 2824 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR) 2825 return false; 2826 return true; 2827 } 2828 2829 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi, 2830 block_t blkaddr) 2831 { 2832 if (!__is_valid_data_blkaddr(blkaddr)) 2833 return false; 2834 verify_blkaddr(sbi, blkaddr, DATA_GENERIC); 2835 return true; 2836 } 2837 2838 /* 2839 * file.c 2840 */ 2841 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 2842 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 2843 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); 2844 int f2fs_truncate(struct inode *inode); 2845 int f2fs_getattr(const struct path *path, struct kstat *stat, 2846 u32 request_mask, unsigned int flags); 2847 int f2fs_setattr(struct dentry *dentry, struct iattr *attr); 2848 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 2849 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 2850 int f2fs_precache_extents(struct inode *inode); 2851 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 2852 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 2853 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 2854 int f2fs_pin_file_control(struct inode *inode, bool inc); 2855 2856 /* 2857 * inode.c 2858 */ 2859 void f2fs_set_inode_flags(struct inode *inode); 2860 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 2861 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 2862 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 2863 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 2864 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 2865 void f2fs_update_inode(struct inode *inode, struct page *node_page); 2866 void f2fs_update_inode_page(struct inode *inode); 2867 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 2868 void f2fs_evict_inode(struct inode *inode); 2869 void f2fs_handle_failed_inode(struct inode *inode); 2870 2871 /* 2872 * namei.c 2873 */ 2874 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 2875 bool hot, bool set); 2876 struct dentry *f2fs_get_parent(struct dentry *child); 2877 2878 /* 2879 * dir.c 2880 */ 2881 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 2882 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname, 2883 f2fs_hash_t namehash, int *max_slots, 2884 struct f2fs_dentry_ptr *d); 2885 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 2886 unsigned int start_pos, struct fscrypt_str *fstr); 2887 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 2888 struct f2fs_dentry_ptr *d); 2889 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 2890 const struct qstr *new_name, 2891 const struct qstr *orig_name, struct page *dpage); 2892 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 2893 unsigned int current_depth); 2894 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 2895 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 2896 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 2897 struct fscrypt_name *fname, struct page **res_page); 2898 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 2899 const struct qstr *child, struct page **res_page); 2900 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 2901 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 2902 struct page **page); 2903 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 2904 struct page *page, struct inode *inode); 2905 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 2906 const struct qstr *name, f2fs_hash_t name_hash, 2907 unsigned int bit_pos); 2908 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, 2909 const struct qstr *orig_name, 2910 struct inode *inode, nid_t ino, umode_t mode); 2911 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname, 2912 struct inode *inode, nid_t ino, umode_t mode); 2913 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 2914 struct inode *inode, nid_t ino, umode_t mode); 2915 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 2916 struct inode *dir, struct inode *inode); 2917 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 2918 bool f2fs_empty_dir(struct inode *dir); 2919 2920 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 2921 { 2922 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 2923 inode, inode->i_ino, inode->i_mode); 2924 } 2925 2926 /* 2927 * super.c 2928 */ 2929 int f2fs_inode_dirtied(struct inode *inode, bool sync); 2930 void f2fs_inode_synced(struct inode *inode); 2931 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 2932 int f2fs_quota_sync(struct super_block *sb, int type); 2933 void f2fs_quota_off_umount(struct super_block *sb); 2934 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 2935 int f2fs_sync_fs(struct super_block *sb, int sync); 2936 extern __printf(3, 4) 2937 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2938 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 2939 2940 /* 2941 * hash.c 2942 */ 2943 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info, 2944 struct fscrypt_name *fname); 2945 2946 /* 2947 * node.c 2948 */ 2949 struct dnode_of_data; 2950 struct node_info; 2951 2952 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); 2953 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); 2954 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); 2955 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); 2956 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); 2957 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); 2958 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); 2959 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); 2960 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); 2961 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 2962 struct node_info *ni); 2963 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); 2964 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); 2965 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); 2966 int f2fs_truncate_xattr_node(struct inode *inode); 2967 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 2968 unsigned int seq_id); 2969 int f2fs_remove_inode_page(struct inode *inode); 2970 struct page *f2fs_new_inode_page(struct inode *inode); 2971 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); 2972 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); 2973 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); 2974 struct page *f2fs_get_node_page_ra(struct page *parent, int start); 2975 int f2fs_move_node_page(struct page *node_page, int gc_type); 2976 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 2977 struct writeback_control *wbc, bool atomic, 2978 unsigned int *seq_id); 2979 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 2980 struct writeback_control *wbc, 2981 bool do_balance, enum iostat_type io_type); 2982 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); 2983 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); 2984 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); 2985 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); 2986 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); 2987 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page); 2988 int f2fs_recover_xattr_data(struct inode *inode, struct page *page); 2989 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); 2990 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 2991 unsigned int segno, struct f2fs_summary_block *sum); 2992 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 2993 int f2fs_build_node_manager(struct f2fs_sb_info *sbi); 2994 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); 2995 int __init f2fs_create_node_manager_caches(void); 2996 void f2fs_destroy_node_manager_caches(void); 2997 2998 /* 2999 * segment.c 3000 */ 3001 bool f2fs_need_SSR(struct f2fs_sb_info *sbi); 3002 void f2fs_register_inmem_page(struct inode *inode, struct page *page); 3003 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); 3004 void f2fs_drop_inmem_pages(struct inode *inode); 3005 void f2fs_drop_inmem_page(struct inode *inode, struct page *page); 3006 int f2fs_commit_inmem_pages(struct inode *inode); 3007 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); 3008 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); 3009 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); 3010 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); 3011 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); 3012 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); 3013 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); 3014 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); 3015 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); 3016 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); 3017 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); 3018 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, 3019 struct cp_control *cpc); 3020 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); 3021 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi); 3022 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); 3023 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); 3024 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3025 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3026 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3027 struct cp_control *cpc); 3028 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3029 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3030 block_t blk_addr); 3031 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3032 enum iostat_type io_type); 3033 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3034 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3035 struct f2fs_io_info *fio); 3036 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3037 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3038 block_t old_blkaddr, block_t new_blkaddr, 3039 bool recover_curseg, bool recover_newaddr); 3040 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3041 block_t old_addr, block_t new_addr, 3042 unsigned char version, bool recover_curseg, 3043 bool recover_newaddr); 3044 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3045 block_t old_blkaddr, block_t *new_blkaddr, 3046 struct f2fs_summary *sum, int type, 3047 struct f2fs_io_info *fio, bool add_list); 3048 void f2fs_wait_on_page_writeback(struct page *page, 3049 enum page_type type, bool ordered, bool locked); 3050 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3051 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3052 block_t len); 3053 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3054 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3055 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3056 unsigned int val, int alloc); 3057 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3058 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3059 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3060 int __init f2fs_create_segment_manager_caches(void); 3061 void f2fs_destroy_segment_manager_caches(void); 3062 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3063 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3064 enum page_type type, enum temp_type temp); 3065 3066 /* 3067 * checkpoint.c 3068 */ 3069 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3070 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3071 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3072 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index); 3073 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3074 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3075 block_t blkaddr, int type); 3076 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3077 int type, bool sync); 3078 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3079 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3080 long nr_to_write, enum iostat_type io_type); 3081 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3082 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3083 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3084 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3085 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3086 unsigned int devidx, int type); 3087 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3088 unsigned int devidx, int type); 3089 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3090 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3091 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3092 void f2fs_add_orphan_inode(struct inode *inode); 3093 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3094 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3095 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3096 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3097 void f2fs_remove_dirty_inode(struct inode *inode); 3098 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3099 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi); 3100 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3101 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3102 int __init f2fs_create_checkpoint_caches(void); 3103 void f2fs_destroy_checkpoint_caches(void); 3104 3105 /* 3106 * data.c 3107 */ 3108 int f2fs_init_post_read_processing(void); 3109 void f2fs_destroy_post_read_processing(void); 3110 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3111 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3112 struct inode *inode, struct page *page, 3113 nid_t ino, enum page_type type); 3114 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3115 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3116 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3117 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3118 block_t blk_addr, struct bio *bio); 3119 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3120 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3121 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3122 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3123 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3124 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3125 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3126 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3127 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3128 int op_flags, bool for_write); 3129 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3130 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3131 bool for_write); 3132 struct page *f2fs_get_new_data_page(struct inode *inode, 3133 struct page *ipage, pgoff_t index, bool new_i_size); 3134 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3135 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3136 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3137 int create, int flag); 3138 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3139 u64 start, u64 len); 3140 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3141 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3142 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3143 unsigned int length); 3144 int f2fs_release_page(struct page *page, gfp_t wait); 3145 #ifdef CONFIG_MIGRATION 3146 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3147 struct page *page, enum migrate_mode mode); 3148 #endif 3149 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3150 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3151 3152 /* 3153 * gc.c 3154 */ 3155 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3156 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3157 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3158 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, 3159 unsigned int segno); 3160 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3161 3162 /* 3163 * recovery.c 3164 */ 3165 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3166 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3167 3168 /* 3169 * debug.c 3170 */ 3171 #ifdef CONFIG_F2FS_STAT_FS 3172 struct f2fs_stat_info { 3173 struct list_head stat_list; 3174 struct f2fs_sb_info *sbi; 3175 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3176 int main_area_segs, main_area_sections, main_area_zones; 3177 unsigned long long hit_largest, hit_cached, hit_rbtree; 3178 unsigned long long hit_total, total_ext; 3179 int ext_tree, zombie_tree, ext_node; 3180 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3181 int ndirty_data, ndirty_qdata; 3182 int inmem_pages; 3183 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3184 int nats, dirty_nats, sits, dirty_sits; 3185 int free_nids, avail_nids, alloc_nids; 3186 int total_count, utilization; 3187 int bg_gc, nr_wb_cp_data, nr_wb_data; 3188 int nr_rd_data, nr_rd_node, nr_rd_meta; 3189 int nr_dio_read, nr_dio_write; 3190 unsigned int io_skip_bggc, other_skip_bggc; 3191 int nr_flushing, nr_flushed, flush_list_empty; 3192 int nr_discarding, nr_discarded; 3193 int nr_discard_cmd; 3194 unsigned int undiscard_blks; 3195 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3196 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3197 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3198 unsigned int bimodal, avg_vblocks; 3199 int util_free, util_valid, util_invalid; 3200 int rsvd_segs, overp_segs; 3201 int dirty_count, node_pages, meta_pages; 3202 int prefree_count, call_count, cp_count, bg_cp_count; 3203 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3204 int bg_node_segs, bg_data_segs; 3205 int tot_blks, data_blks, node_blks; 3206 int bg_data_blks, bg_node_blks; 3207 unsigned long long skipped_atomic_files[2]; 3208 int curseg[NR_CURSEG_TYPE]; 3209 int cursec[NR_CURSEG_TYPE]; 3210 int curzone[NR_CURSEG_TYPE]; 3211 3212 unsigned int meta_count[META_MAX]; 3213 unsigned int segment_count[2]; 3214 unsigned int block_count[2]; 3215 unsigned int inplace_count; 3216 unsigned long long base_mem, cache_mem, page_mem; 3217 }; 3218 3219 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3220 { 3221 return (struct f2fs_stat_info *)sbi->stat_info; 3222 } 3223 3224 #define stat_inc_cp_count(si) ((si)->cp_count++) 3225 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3226 #define stat_inc_call_count(si) ((si)->call_count++) 3227 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) 3228 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3229 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3230 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3231 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3232 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3233 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3234 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3235 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3236 #define stat_inc_inline_xattr(inode) \ 3237 do { \ 3238 if (f2fs_has_inline_xattr(inode)) \ 3239 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3240 } while (0) 3241 #define stat_dec_inline_xattr(inode) \ 3242 do { \ 3243 if (f2fs_has_inline_xattr(inode)) \ 3244 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3245 } while (0) 3246 #define stat_inc_inline_inode(inode) \ 3247 do { \ 3248 if (f2fs_has_inline_data(inode)) \ 3249 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3250 } while (0) 3251 #define stat_dec_inline_inode(inode) \ 3252 do { \ 3253 if (f2fs_has_inline_data(inode)) \ 3254 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3255 } while (0) 3256 #define stat_inc_inline_dir(inode) \ 3257 do { \ 3258 if (f2fs_has_inline_dentry(inode)) \ 3259 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3260 } while (0) 3261 #define stat_dec_inline_dir(inode) \ 3262 do { \ 3263 if (f2fs_has_inline_dentry(inode)) \ 3264 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3265 } while (0) 3266 #define stat_inc_meta_count(sbi, blkaddr) \ 3267 do { \ 3268 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3269 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3270 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3271 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3272 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3273 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3274 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3275 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3276 } while (0) 3277 #define stat_inc_seg_type(sbi, curseg) \ 3278 ((sbi)->segment_count[(curseg)->alloc_type]++) 3279 #define stat_inc_block_count(sbi, curseg) \ 3280 ((sbi)->block_count[(curseg)->alloc_type]++) 3281 #define stat_inc_inplace_blocks(sbi) \ 3282 (atomic_inc(&(sbi)->inplace_count)) 3283 #define stat_inc_atomic_write(inode) \ 3284 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt)) 3285 #define stat_dec_atomic_write(inode) \ 3286 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt)) 3287 #define stat_update_max_atomic_write(inode) \ 3288 do { \ 3289 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \ 3290 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3291 if (cur > max) \ 3292 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3293 } while (0) 3294 #define stat_inc_volatile_write(inode) \ 3295 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3296 #define stat_dec_volatile_write(inode) \ 3297 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3298 #define stat_update_max_volatile_write(inode) \ 3299 do { \ 3300 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3301 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3302 if (cur > max) \ 3303 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3304 } while (0) 3305 #define stat_inc_seg_count(sbi, type, gc_type) \ 3306 do { \ 3307 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3308 si->tot_segs++; \ 3309 if ((type) == SUM_TYPE_DATA) { \ 3310 si->data_segs++; \ 3311 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3312 } else { \ 3313 si->node_segs++; \ 3314 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3315 } \ 3316 } while (0) 3317 3318 #define stat_inc_tot_blk_count(si, blks) \ 3319 ((si)->tot_blks += (blks)) 3320 3321 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3322 do { \ 3323 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3324 stat_inc_tot_blk_count(si, blks); \ 3325 si->data_blks += (blks); \ 3326 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3327 } while (0) 3328 3329 #define stat_inc_node_blk_count(sbi, blks, gc_type) \ 3330 do { \ 3331 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3332 stat_inc_tot_blk_count(si, blks); \ 3333 si->node_blks += (blks); \ 3334 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3335 } while (0) 3336 3337 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3338 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3339 void __init f2fs_create_root_stats(void); 3340 void f2fs_destroy_root_stats(void); 3341 #else 3342 #define stat_inc_cp_count(si) do { } while (0) 3343 #define stat_inc_bg_cp_count(si) do { } while (0) 3344 #define stat_inc_call_count(si) do { } while (0) 3345 #define stat_inc_bggc_count(si) do { } while (0) 3346 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3347 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3348 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3349 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3350 #define stat_inc_total_hit(sb) do { } while (0) 3351 #define stat_inc_rbtree_node_hit(sb) do { } while (0) 3352 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3353 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3354 #define stat_inc_inline_xattr(inode) do { } while (0) 3355 #define stat_dec_inline_xattr(inode) do { } while (0) 3356 #define stat_inc_inline_inode(inode) do { } while (0) 3357 #define stat_dec_inline_inode(inode) do { } while (0) 3358 #define stat_inc_inline_dir(inode) do { } while (0) 3359 #define stat_dec_inline_dir(inode) do { } while (0) 3360 #define stat_inc_atomic_write(inode) do { } while (0) 3361 #define stat_dec_atomic_write(inode) do { } while (0) 3362 #define stat_update_max_atomic_write(inode) do { } while (0) 3363 #define stat_inc_volatile_write(inode) do { } while (0) 3364 #define stat_dec_volatile_write(inode) do { } while (0) 3365 #define stat_update_max_volatile_write(inode) do { } while (0) 3366 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3367 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3368 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3369 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3370 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3371 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3372 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3373 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3374 3375 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3376 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3377 static inline void __init f2fs_create_root_stats(void) { } 3378 static inline void f2fs_destroy_root_stats(void) { } 3379 #endif 3380 3381 extern const struct file_operations f2fs_dir_operations; 3382 extern const struct file_operations f2fs_file_operations; 3383 extern const struct inode_operations f2fs_file_inode_operations; 3384 extern const struct address_space_operations f2fs_dblock_aops; 3385 extern const struct address_space_operations f2fs_node_aops; 3386 extern const struct address_space_operations f2fs_meta_aops; 3387 extern const struct inode_operations f2fs_dir_inode_operations; 3388 extern const struct inode_operations f2fs_symlink_inode_operations; 3389 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3390 extern const struct inode_operations f2fs_special_inode_operations; 3391 extern struct kmem_cache *f2fs_inode_entry_slab; 3392 3393 /* 3394 * inline.c 3395 */ 3396 bool f2fs_may_inline_data(struct inode *inode); 3397 bool f2fs_may_inline_dentry(struct inode *inode); 3398 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3399 void f2fs_truncate_inline_inode(struct inode *inode, 3400 struct page *ipage, u64 from); 3401 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3402 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3403 int f2fs_convert_inline_inode(struct inode *inode); 3404 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3405 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3406 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3407 struct fscrypt_name *fname, struct page **res_page); 3408 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3409 struct page *ipage); 3410 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, 3411 const struct qstr *orig_name, 3412 struct inode *inode, nid_t ino, umode_t mode); 3413 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3414 struct page *page, struct inode *dir, 3415 struct inode *inode); 3416 bool f2fs_empty_inline_dir(struct inode *dir); 3417 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3418 struct fscrypt_str *fstr); 3419 int f2fs_inline_data_fiemap(struct inode *inode, 3420 struct fiemap_extent_info *fieinfo, 3421 __u64 start, __u64 len); 3422 3423 /* 3424 * shrinker.c 3425 */ 3426 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3427 struct shrink_control *sc); 3428 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3429 struct shrink_control *sc); 3430 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3431 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3432 3433 /* 3434 * extent_cache.c 3435 */ 3436 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3437 struct rb_entry *cached_re, unsigned int ofs); 3438 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3439 struct rb_root_cached *root, 3440 struct rb_node **parent, 3441 unsigned int ofs, bool *leftmost); 3442 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3443 struct rb_entry *cached_re, unsigned int ofs, 3444 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3445 struct rb_node ***insert_p, struct rb_node **insert_parent, 3446 bool force, bool *leftmost); 3447 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3448 struct rb_root_cached *root); 3449 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3450 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); 3451 void f2fs_drop_extent_tree(struct inode *inode); 3452 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3453 void f2fs_destroy_extent_tree(struct inode *inode); 3454 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3455 struct extent_info *ei); 3456 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3457 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3458 pgoff_t fofs, block_t blkaddr, unsigned int len); 3459 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3460 int __init f2fs_create_extent_cache(void); 3461 void f2fs_destroy_extent_cache(void); 3462 3463 /* 3464 * sysfs.c 3465 */ 3466 int __init f2fs_init_sysfs(void); 3467 void f2fs_exit_sysfs(void); 3468 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3469 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3470 3471 /* 3472 * crypto support 3473 */ 3474 static inline bool f2fs_encrypted_inode(struct inode *inode) 3475 { 3476 return file_is_encrypt(inode); 3477 } 3478 3479 static inline bool f2fs_encrypted_file(struct inode *inode) 3480 { 3481 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode); 3482 } 3483 3484 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3485 { 3486 #ifdef CONFIG_F2FS_FS_ENCRYPTION 3487 file_set_encrypt(inode); 3488 f2fs_set_inode_flags(inode); 3489 #endif 3490 } 3491 3492 /* 3493 * Returns true if the reads of the inode's data need to undergo some 3494 * postprocessing step, like decryption or authenticity verification. 3495 */ 3496 static inline bool f2fs_post_read_required(struct inode *inode) 3497 { 3498 return f2fs_encrypted_file(inode); 3499 } 3500 3501 #define F2FS_FEATURE_FUNCS(name, flagname) \ 3502 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 3503 { \ 3504 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 3505 } 3506 3507 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 3508 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 3509 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 3510 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 3511 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 3512 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 3513 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 3514 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 3515 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 3516 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 3517 3518 #ifdef CONFIG_BLK_DEV_ZONED 3519 static inline int get_blkz_type(struct f2fs_sb_info *sbi, 3520 struct block_device *bdev, block_t blkaddr) 3521 { 3522 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 3523 int i; 3524 3525 for (i = 0; i < sbi->s_ndevs; i++) 3526 if (FDEV(i).bdev == bdev) 3527 return FDEV(i).blkz_type[zno]; 3528 return -EINVAL; 3529 } 3530 #endif 3531 3532 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 3533 { 3534 return f2fs_sb_has_blkzoned(sbi); 3535 } 3536 3537 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 3538 { 3539 return blk_queue_discard(bdev_get_queue(sbi->sb->s_bdev)); 3540 } 3541 3542 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 3543 { 3544 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 3545 f2fs_hw_should_discard(sbi); 3546 } 3547 3548 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) 3549 { 3550 clear_opt(sbi, ADAPTIVE); 3551 clear_opt(sbi, LFS); 3552 3553 switch (mt) { 3554 case F2FS_MOUNT_ADAPTIVE: 3555 set_opt(sbi, ADAPTIVE); 3556 break; 3557 case F2FS_MOUNT_LFS: 3558 set_opt(sbi, LFS); 3559 break; 3560 } 3561 } 3562 3563 static inline bool f2fs_may_encrypt(struct inode *inode) 3564 { 3565 #ifdef CONFIG_F2FS_FS_ENCRYPTION 3566 umode_t mode = inode->i_mode; 3567 3568 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); 3569 #else 3570 return false; 3571 #endif 3572 } 3573 3574 static inline int block_unaligned_IO(struct inode *inode, 3575 struct kiocb *iocb, struct iov_iter *iter) 3576 { 3577 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 3578 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 3579 loff_t offset = iocb->ki_pos; 3580 unsigned long align = offset | iov_iter_alignment(iter); 3581 3582 return align & blocksize_mask; 3583 } 3584 3585 static inline int allow_outplace_dio(struct inode *inode, 3586 struct kiocb *iocb, struct iov_iter *iter) 3587 { 3588 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3589 int rw = iov_iter_rw(iter); 3590 3591 return (test_opt(sbi, LFS) && (rw == WRITE) && 3592 !block_unaligned_IO(inode, iocb, iter)); 3593 } 3594 3595 static inline bool f2fs_force_buffered_io(struct inode *inode, 3596 struct kiocb *iocb, struct iov_iter *iter) 3597 { 3598 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3599 int rw = iov_iter_rw(iter); 3600 3601 if (f2fs_post_read_required(inode)) 3602 return true; 3603 if (sbi->s_ndevs) 3604 return true; 3605 /* 3606 * for blkzoned device, fallback direct IO to buffered IO, so 3607 * all IOs can be serialized by log-structured write. 3608 */ 3609 if (f2fs_sb_has_blkzoned(sbi)) 3610 return true; 3611 if (test_opt(sbi, LFS) && (rw == WRITE) && 3612 block_unaligned_IO(inode, iocb, iter)) 3613 return true; 3614 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) 3615 return true; 3616 3617 return false; 3618 } 3619 3620 #ifdef CONFIG_F2FS_FAULT_INJECTION 3621 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 3622 unsigned int type); 3623 #else 3624 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 3625 #endif 3626 3627 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 3628 { 3629 #ifdef CONFIG_QUOTA 3630 if (f2fs_sb_has_quota_ino(sbi)) 3631 return true; 3632 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 3633 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 3634 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 3635 return true; 3636 #endif 3637 return false; 3638 } 3639 3640 #endif 3641