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 #define DEF_MIN_INLINE_SIZE 1 463 static inline int get_extra_isize(struct inode *inode); 464 static inline int get_inline_xattr_addrs(struct inode *inode); 465 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 466 (CUR_ADDRS_PER_INODE(inode) - \ 467 get_inline_xattr_addrs(inode) - \ 468 DEF_INLINE_RESERVED_SIZE)) 469 470 /* for inline dir */ 471 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 472 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 473 BITS_PER_BYTE + 1)) 474 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \ 475 BITS_PER_BYTE - 1) / BITS_PER_BYTE) 476 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 477 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 478 NR_INLINE_DENTRY(inode) + \ 479 INLINE_DENTRY_BITMAP_SIZE(inode))) 480 481 /* 482 * For INODE and NODE manager 483 */ 484 /* for directory operations */ 485 struct f2fs_dentry_ptr { 486 struct inode *inode; 487 void *bitmap; 488 struct f2fs_dir_entry *dentry; 489 __u8 (*filename)[F2FS_SLOT_LEN]; 490 int max; 491 int nr_bitmap; 492 }; 493 494 static inline void make_dentry_ptr_block(struct inode *inode, 495 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 496 { 497 d->inode = inode; 498 d->max = NR_DENTRY_IN_BLOCK; 499 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 500 d->bitmap = t->dentry_bitmap; 501 d->dentry = t->dentry; 502 d->filename = t->filename; 503 } 504 505 static inline void make_dentry_ptr_inline(struct inode *inode, 506 struct f2fs_dentry_ptr *d, void *t) 507 { 508 int entry_cnt = NR_INLINE_DENTRY(inode); 509 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 510 int reserved_size = INLINE_RESERVED_SIZE(inode); 511 512 d->inode = inode; 513 d->max = entry_cnt; 514 d->nr_bitmap = bitmap_size; 515 d->bitmap = t; 516 d->dentry = t + bitmap_size + reserved_size; 517 d->filename = t + bitmap_size + reserved_size + 518 SIZE_OF_DIR_ENTRY * entry_cnt; 519 } 520 521 /* 522 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 523 * as its node offset to distinguish from index node blocks. 524 * But some bits are used to mark the node block. 525 */ 526 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 527 >> OFFSET_BIT_SHIFT) 528 enum { 529 ALLOC_NODE, /* allocate a new node page if needed */ 530 LOOKUP_NODE, /* look up a node without readahead */ 531 LOOKUP_NODE_RA, /* 532 * look up a node with readahead called 533 * by get_data_block. 534 */ 535 }; 536 537 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 538 539 /* maximum retry quota flush count */ 540 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 541 542 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 543 544 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 545 546 /* for in-memory extent cache entry */ 547 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 548 549 /* number of extent info in extent cache we try to shrink */ 550 #define EXTENT_CACHE_SHRINK_NUMBER 128 551 552 struct rb_entry { 553 struct rb_node rb_node; /* rb node located in rb-tree */ 554 unsigned int ofs; /* start offset of the entry */ 555 unsigned int len; /* length of the entry */ 556 }; 557 558 struct extent_info { 559 unsigned int fofs; /* start offset in a file */ 560 unsigned int len; /* length of the extent */ 561 u32 blk; /* start block address of the extent */ 562 }; 563 564 struct extent_node { 565 struct rb_node rb_node; /* rb node located in rb-tree */ 566 struct extent_info ei; /* extent info */ 567 struct list_head list; /* node in global extent list of sbi */ 568 struct extent_tree *et; /* extent tree pointer */ 569 }; 570 571 struct extent_tree { 572 nid_t ino; /* inode number */ 573 struct rb_root_cached root; /* root of extent info rb-tree */ 574 struct extent_node *cached_en; /* recently accessed extent node */ 575 struct extent_info largest; /* largested extent info */ 576 struct list_head list; /* to be used by sbi->zombie_list */ 577 rwlock_t lock; /* protect extent info rb-tree */ 578 atomic_t node_cnt; /* # of extent node in rb-tree*/ 579 bool largest_updated; /* largest extent updated */ 580 }; 581 582 /* 583 * This structure is taken from ext4_map_blocks. 584 * 585 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 586 */ 587 #define F2FS_MAP_NEW (1 << BH_New) 588 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 589 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 590 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 591 F2FS_MAP_UNWRITTEN) 592 593 struct f2fs_map_blocks { 594 block_t m_pblk; 595 block_t m_lblk; 596 unsigned int m_len; 597 unsigned int m_flags; 598 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 599 pgoff_t *m_next_extent; /* point to next possible extent */ 600 int m_seg_type; 601 bool m_may_create; /* indicate it is from write path */ 602 }; 603 604 /* for flag in get_data_block */ 605 enum { 606 F2FS_GET_BLOCK_DEFAULT, 607 F2FS_GET_BLOCK_FIEMAP, 608 F2FS_GET_BLOCK_BMAP, 609 F2FS_GET_BLOCK_DIO, 610 F2FS_GET_BLOCK_PRE_DIO, 611 F2FS_GET_BLOCK_PRE_AIO, 612 F2FS_GET_BLOCK_PRECACHE, 613 }; 614 615 /* 616 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 617 */ 618 #define FADVISE_COLD_BIT 0x01 619 #define FADVISE_LOST_PINO_BIT 0x02 620 #define FADVISE_ENCRYPT_BIT 0x04 621 #define FADVISE_ENC_NAME_BIT 0x08 622 #define FADVISE_KEEP_SIZE_BIT 0x10 623 #define FADVISE_HOT_BIT 0x20 624 #define FADVISE_VERITY_BIT 0x40 /* reserved */ 625 626 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 627 628 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 629 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 630 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 631 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 632 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 633 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 634 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 635 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 636 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) 637 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 638 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 639 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 640 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 641 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 642 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 643 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 644 645 #define DEF_DIR_LEVEL 0 646 647 enum { 648 GC_FAILURE_PIN, 649 GC_FAILURE_ATOMIC, 650 MAX_GC_FAILURE 651 }; 652 653 struct f2fs_inode_info { 654 struct inode vfs_inode; /* serve a vfs inode */ 655 unsigned long i_flags; /* keep an inode flags for ioctl */ 656 unsigned char i_advise; /* use to give file attribute hints */ 657 unsigned char i_dir_level; /* use for dentry level for large dir */ 658 unsigned int i_current_depth; /* only for directory depth */ 659 /* for gc failure statistic */ 660 unsigned int i_gc_failures[MAX_GC_FAILURE]; 661 unsigned int i_pino; /* parent inode number */ 662 umode_t i_acl_mode; /* keep file acl mode temporarily */ 663 664 /* Use below internally in f2fs*/ 665 unsigned long flags; /* use to pass per-file flags */ 666 struct rw_semaphore i_sem; /* protect fi info */ 667 atomic_t dirty_pages; /* # of dirty pages */ 668 f2fs_hash_t chash; /* hash value of given file name */ 669 unsigned int clevel; /* maximum level of given file name */ 670 struct task_struct *task; /* lookup and create consistency */ 671 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 672 nid_t i_xattr_nid; /* node id that contains xattrs */ 673 loff_t last_disk_size; /* lastly written file size */ 674 675 #ifdef CONFIG_QUOTA 676 struct dquot *i_dquot[MAXQUOTAS]; 677 678 /* quota space reservation, managed internally by quota code */ 679 qsize_t i_reserved_quota; 680 #endif 681 struct list_head dirty_list; /* dirty list for dirs and files */ 682 struct list_head gdirty_list; /* linked in global dirty list */ 683 struct list_head inmem_ilist; /* list for inmem inodes */ 684 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 685 struct task_struct *inmem_task; /* store inmemory task */ 686 struct mutex inmem_lock; /* lock for inmemory pages */ 687 struct extent_tree *extent_tree; /* cached extent_tree entry */ 688 689 /* avoid racing between foreground op and gc */ 690 struct rw_semaphore i_gc_rwsem[2]; 691 struct rw_semaphore i_mmap_sem; 692 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 693 694 int i_extra_isize; /* size of extra space located in i_addr */ 695 kprojid_t i_projid; /* id for project quota */ 696 int i_inline_xattr_size; /* inline xattr size */ 697 struct timespec64 i_crtime; /* inode creation time */ 698 struct timespec64 i_disk_time[4];/* inode disk times */ 699 }; 700 701 static inline void get_extent_info(struct extent_info *ext, 702 struct f2fs_extent *i_ext) 703 { 704 ext->fofs = le32_to_cpu(i_ext->fofs); 705 ext->blk = le32_to_cpu(i_ext->blk); 706 ext->len = le32_to_cpu(i_ext->len); 707 } 708 709 static inline void set_raw_extent(struct extent_info *ext, 710 struct f2fs_extent *i_ext) 711 { 712 i_ext->fofs = cpu_to_le32(ext->fofs); 713 i_ext->blk = cpu_to_le32(ext->blk); 714 i_ext->len = cpu_to_le32(ext->len); 715 } 716 717 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 718 u32 blk, unsigned int len) 719 { 720 ei->fofs = fofs; 721 ei->blk = blk; 722 ei->len = len; 723 } 724 725 static inline bool __is_discard_mergeable(struct discard_info *back, 726 struct discard_info *front, unsigned int max_len) 727 { 728 return (back->lstart + back->len == front->lstart) && 729 (back->len + front->len <= max_len); 730 } 731 732 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 733 struct discard_info *back, unsigned int max_len) 734 { 735 return __is_discard_mergeable(back, cur, max_len); 736 } 737 738 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 739 struct discard_info *front, unsigned int max_len) 740 { 741 return __is_discard_mergeable(cur, front, max_len); 742 } 743 744 static inline bool __is_extent_mergeable(struct extent_info *back, 745 struct extent_info *front) 746 { 747 return (back->fofs + back->len == front->fofs && 748 back->blk + back->len == front->blk); 749 } 750 751 static inline bool __is_back_mergeable(struct extent_info *cur, 752 struct extent_info *back) 753 { 754 return __is_extent_mergeable(back, cur); 755 } 756 757 static inline bool __is_front_mergeable(struct extent_info *cur, 758 struct extent_info *front) 759 { 760 return __is_extent_mergeable(cur, front); 761 } 762 763 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 764 static inline void __try_update_largest_extent(struct extent_tree *et, 765 struct extent_node *en) 766 { 767 if (en->ei.len > et->largest.len) { 768 et->largest = en->ei; 769 et->largest_updated = true; 770 } 771 } 772 773 /* 774 * For free nid management 775 */ 776 enum nid_state { 777 FREE_NID, /* newly added to free nid list */ 778 PREALLOC_NID, /* it is preallocated */ 779 MAX_NID_STATE, 780 }; 781 782 struct f2fs_nm_info { 783 block_t nat_blkaddr; /* base disk address of NAT */ 784 nid_t max_nid; /* maximum possible node ids */ 785 nid_t available_nids; /* # of available node ids */ 786 nid_t next_scan_nid; /* the next nid to be scanned */ 787 unsigned int ram_thresh; /* control the memory footprint */ 788 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 789 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 790 791 /* NAT cache management */ 792 struct radix_tree_root nat_root;/* root of the nat entry cache */ 793 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 794 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ 795 struct list_head nat_entries; /* cached nat entry list (clean) */ 796 spinlock_t nat_list_lock; /* protect clean nat entry list */ 797 unsigned int nat_cnt; /* the # of cached nat entries */ 798 unsigned int dirty_nat_cnt; /* total num of nat entries in set */ 799 unsigned int nat_blocks; /* # of nat blocks */ 800 801 /* free node ids management */ 802 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 803 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 804 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 805 spinlock_t nid_list_lock; /* protect nid lists ops */ 806 struct mutex build_lock; /* lock for build free nids */ 807 unsigned char **free_nid_bitmap; 808 unsigned char *nat_block_bitmap; 809 unsigned short *free_nid_count; /* free nid count of NAT block */ 810 811 /* for checkpoint */ 812 char *nat_bitmap; /* NAT bitmap pointer */ 813 814 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 815 unsigned char *nat_bits; /* NAT bits blocks */ 816 unsigned char *full_nat_bits; /* full NAT pages */ 817 unsigned char *empty_nat_bits; /* empty NAT pages */ 818 #ifdef CONFIG_F2FS_CHECK_FS 819 char *nat_bitmap_mir; /* NAT bitmap mirror */ 820 #endif 821 int bitmap_size; /* bitmap size */ 822 }; 823 824 /* 825 * this structure is used as one of function parameters. 826 * all the information are dedicated to a given direct node block determined 827 * by the data offset in a file. 828 */ 829 struct dnode_of_data { 830 struct inode *inode; /* vfs inode pointer */ 831 struct page *inode_page; /* its inode page, NULL is possible */ 832 struct page *node_page; /* cached direct node page */ 833 nid_t nid; /* node id of the direct node block */ 834 unsigned int ofs_in_node; /* data offset in the node page */ 835 bool inode_page_locked; /* inode page is locked or not */ 836 bool node_changed; /* is node block changed */ 837 char cur_level; /* level of hole node page */ 838 char max_level; /* level of current page located */ 839 block_t data_blkaddr; /* block address of the node block */ 840 }; 841 842 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 843 struct page *ipage, struct page *npage, nid_t nid) 844 { 845 memset(dn, 0, sizeof(*dn)); 846 dn->inode = inode; 847 dn->inode_page = ipage; 848 dn->node_page = npage; 849 dn->nid = nid; 850 } 851 852 /* 853 * For SIT manager 854 * 855 * By default, there are 6 active log areas across the whole main area. 856 * When considering hot and cold data separation to reduce cleaning overhead, 857 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 858 * respectively. 859 * In the current design, you should not change the numbers intentionally. 860 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 861 * logs individually according to the underlying devices. (default: 6) 862 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 863 * data and 8 for node logs. 864 */ 865 #define NR_CURSEG_DATA_TYPE (3) 866 #define NR_CURSEG_NODE_TYPE (3) 867 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 868 869 enum { 870 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 871 CURSEG_WARM_DATA, /* data blocks */ 872 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 873 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 874 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 875 CURSEG_COLD_NODE, /* indirect node blocks */ 876 NO_CHECK_TYPE, 877 }; 878 879 struct flush_cmd { 880 struct completion wait; 881 struct llist_node llnode; 882 nid_t ino; 883 int ret; 884 }; 885 886 struct flush_cmd_control { 887 struct task_struct *f2fs_issue_flush; /* flush thread */ 888 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 889 atomic_t issued_flush; /* # of issued flushes */ 890 atomic_t queued_flush; /* # of queued flushes */ 891 struct llist_head issue_list; /* list for command issue */ 892 struct llist_node *dispatch_list; /* list for command dispatch */ 893 }; 894 895 struct f2fs_sm_info { 896 struct sit_info *sit_info; /* whole segment information */ 897 struct free_segmap_info *free_info; /* free segment information */ 898 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 899 struct curseg_info *curseg_array; /* active segment information */ 900 901 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 902 903 block_t seg0_blkaddr; /* block address of 0'th segment */ 904 block_t main_blkaddr; /* start block address of main area */ 905 block_t ssa_blkaddr; /* start block address of SSA area */ 906 907 unsigned int segment_count; /* total # of segments */ 908 unsigned int main_segments; /* # of segments in main area */ 909 unsigned int reserved_segments; /* # of reserved segments */ 910 unsigned int ovp_segments; /* # of overprovision segments */ 911 912 /* a threshold to reclaim prefree segments */ 913 unsigned int rec_prefree_segments; 914 915 /* for batched trimming */ 916 unsigned int trim_sections; /* # of sections to trim */ 917 918 struct list_head sit_entry_set; /* sit entry set list */ 919 920 unsigned int ipu_policy; /* in-place-update policy */ 921 unsigned int min_ipu_util; /* in-place-update threshold */ 922 unsigned int min_fsync_blocks; /* threshold for fsync */ 923 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 924 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 925 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 926 927 /* for flush command control */ 928 struct flush_cmd_control *fcc_info; 929 930 /* for discard command control */ 931 struct discard_cmd_control *dcc_info; 932 }; 933 934 /* 935 * For superblock 936 */ 937 /* 938 * COUNT_TYPE for monitoring 939 * 940 * f2fs monitors the number of several block types such as on-writeback, 941 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 942 */ 943 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 944 enum count_type { 945 F2FS_DIRTY_DENTS, 946 F2FS_DIRTY_DATA, 947 F2FS_DIRTY_QDATA, 948 F2FS_DIRTY_NODES, 949 F2FS_DIRTY_META, 950 F2FS_INMEM_PAGES, 951 F2FS_DIRTY_IMETA, 952 F2FS_WB_CP_DATA, 953 F2FS_WB_DATA, 954 F2FS_RD_DATA, 955 F2FS_RD_NODE, 956 F2FS_RD_META, 957 F2FS_DIO_WRITE, 958 F2FS_DIO_READ, 959 NR_COUNT_TYPE, 960 }; 961 962 /* 963 * The below are the page types of bios used in submit_bio(). 964 * The available types are: 965 * DATA User data pages. It operates as async mode. 966 * NODE Node pages. It operates as async mode. 967 * META FS metadata pages such as SIT, NAT, CP. 968 * NR_PAGE_TYPE The number of page types. 969 * META_FLUSH Make sure the previous pages are written 970 * with waiting the bio's completion 971 * ... Only can be used with META. 972 */ 973 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 974 enum page_type { 975 DATA, 976 NODE, 977 META, 978 NR_PAGE_TYPE, 979 META_FLUSH, 980 INMEM, /* the below types are used by tracepoints only. */ 981 INMEM_DROP, 982 INMEM_INVALIDATE, 983 INMEM_REVOKE, 984 IPU, 985 OPU, 986 }; 987 988 enum temp_type { 989 HOT = 0, /* must be zero for meta bio */ 990 WARM, 991 COLD, 992 NR_TEMP_TYPE, 993 }; 994 995 enum need_lock_type { 996 LOCK_REQ = 0, 997 LOCK_DONE, 998 LOCK_RETRY, 999 }; 1000 1001 enum cp_reason_type { 1002 CP_NO_NEEDED, 1003 CP_NON_REGULAR, 1004 CP_HARDLINK, 1005 CP_SB_NEED_CP, 1006 CP_WRONG_PINO, 1007 CP_NO_SPC_ROLL, 1008 CP_NODE_NEED_CP, 1009 CP_FASTBOOT_MODE, 1010 CP_SPEC_LOG_NUM, 1011 CP_RECOVER_DIR, 1012 }; 1013 1014 enum iostat_type { 1015 APP_DIRECT_IO, /* app direct IOs */ 1016 APP_BUFFERED_IO, /* app buffered IOs */ 1017 APP_WRITE_IO, /* app write IOs */ 1018 APP_MAPPED_IO, /* app mapped IOs */ 1019 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1020 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1021 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1022 FS_GC_DATA_IO, /* data IOs from forground gc */ 1023 FS_GC_NODE_IO, /* node IOs from forground gc */ 1024 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1025 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1026 FS_CP_META_IO, /* meta IOs from checkpoint */ 1027 FS_DISCARD, /* discard */ 1028 NR_IO_TYPE, 1029 }; 1030 1031 struct f2fs_io_info { 1032 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1033 nid_t ino; /* inode number */ 1034 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1035 enum temp_type temp; /* contains HOT/WARM/COLD */ 1036 int op; /* contains REQ_OP_ */ 1037 int op_flags; /* req_flag_bits */ 1038 block_t new_blkaddr; /* new block address to be written */ 1039 block_t old_blkaddr; /* old block address before Cow */ 1040 struct page *page; /* page to be written */ 1041 struct page *encrypted_page; /* encrypted page */ 1042 struct list_head list; /* serialize IOs */ 1043 bool submitted; /* indicate IO submission */ 1044 int need_lock; /* indicate we need to lock cp_rwsem */ 1045 bool in_list; /* indicate fio is in io_list */ 1046 bool is_meta; /* indicate borrow meta inode mapping or not */ 1047 bool retry; /* need to reallocate block address */ 1048 enum iostat_type io_type; /* io type */ 1049 struct writeback_control *io_wbc; /* writeback control */ 1050 unsigned char version; /* version of the node */ 1051 }; 1052 1053 #define is_read_io(rw) ((rw) == READ) 1054 struct f2fs_bio_info { 1055 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1056 struct bio *bio; /* bios to merge */ 1057 sector_t last_block_in_bio; /* last block number */ 1058 struct f2fs_io_info fio; /* store buffered io info. */ 1059 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1060 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1061 struct list_head io_list; /* track fios */ 1062 }; 1063 1064 #define FDEV(i) (sbi->devs[i]) 1065 #define RDEV(i) (raw_super->devs[i]) 1066 struct f2fs_dev_info { 1067 struct block_device *bdev; 1068 char path[MAX_PATH_LEN]; 1069 unsigned int total_segments; 1070 block_t start_blk; 1071 block_t end_blk; 1072 #ifdef CONFIG_BLK_DEV_ZONED 1073 unsigned int nr_blkz; /* Total number of zones */ 1074 u8 *blkz_type; /* Array of zones type */ 1075 #endif 1076 }; 1077 1078 enum inode_type { 1079 DIR_INODE, /* for dirty dir inode */ 1080 FILE_INODE, /* for dirty regular/symlink inode */ 1081 DIRTY_META, /* for all dirtied inode metadata */ 1082 ATOMIC_FILE, /* for all atomic files */ 1083 NR_INODE_TYPE, 1084 }; 1085 1086 /* for inner inode cache management */ 1087 struct inode_management { 1088 struct radix_tree_root ino_root; /* ino entry array */ 1089 spinlock_t ino_lock; /* for ino entry lock */ 1090 struct list_head ino_list; /* inode list head */ 1091 unsigned long ino_num; /* number of entries */ 1092 }; 1093 1094 /* For s_flag in struct f2fs_sb_info */ 1095 enum { 1096 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1097 SBI_IS_CLOSE, /* specify unmounting */ 1098 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1099 SBI_POR_DOING, /* recovery is doing or not */ 1100 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1101 SBI_NEED_CP, /* need to checkpoint */ 1102 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1103 SBI_IS_RECOVERED, /* recovered orphan/data */ 1104 SBI_CP_DISABLED, /* CP was disabled last mount */ 1105 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */ 1106 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1107 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1108 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1109 }; 1110 1111 enum { 1112 CP_TIME, 1113 REQ_TIME, 1114 DISCARD_TIME, 1115 GC_TIME, 1116 DISABLE_TIME, 1117 UMOUNT_DISCARD_TIMEOUT, 1118 MAX_TIME, 1119 }; 1120 1121 enum { 1122 GC_NORMAL, 1123 GC_IDLE_CB, 1124 GC_IDLE_GREEDY, 1125 GC_URGENT, 1126 }; 1127 1128 enum { 1129 WHINT_MODE_OFF, /* not pass down write hints */ 1130 WHINT_MODE_USER, /* try to pass down hints given by users */ 1131 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1132 }; 1133 1134 enum { 1135 ALLOC_MODE_DEFAULT, /* stay default */ 1136 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1137 }; 1138 1139 enum fsync_mode { 1140 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1141 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1142 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1143 }; 1144 1145 #ifdef CONFIG_F2FS_FS_ENCRYPTION 1146 #define DUMMY_ENCRYPTION_ENABLED(sbi) \ 1147 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption)) 1148 #else 1149 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0) 1150 #endif 1151 1152 struct f2fs_sb_info { 1153 struct super_block *sb; /* pointer to VFS super block */ 1154 struct proc_dir_entry *s_proc; /* proc entry */ 1155 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1156 struct rw_semaphore sb_lock; /* lock for raw super block */ 1157 int valid_super_block; /* valid super block no */ 1158 unsigned long s_flag; /* flags for sbi */ 1159 struct mutex writepages; /* mutex for writepages() */ 1160 1161 #ifdef CONFIG_BLK_DEV_ZONED 1162 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1163 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1164 #endif 1165 1166 /* for node-related operations */ 1167 struct f2fs_nm_info *nm_info; /* node manager */ 1168 struct inode *node_inode; /* cache node blocks */ 1169 1170 /* for segment-related operations */ 1171 struct f2fs_sm_info *sm_info; /* segment manager */ 1172 1173 /* for bio operations */ 1174 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1175 /* keep migration IO order for LFS mode */ 1176 struct rw_semaphore io_order_lock; 1177 mempool_t *write_io_dummy; /* Dummy pages */ 1178 1179 /* for checkpoint */ 1180 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1181 int cur_cp_pack; /* remain current cp pack */ 1182 spinlock_t cp_lock; /* for flag in ckpt */ 1183 struct inode *meta_inode; /* cache meta blocks */ 1184 struct mutex cp_mutex; /* checkpoint procedure lock */ 1185 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1186 struct rw_semaphore node_write; /* locking node writes */ 1187 struct rw_semaphore node_change; /* locking node change */ 1188 wait_queue_head_t cp_wait; 1189 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1190 long interval_time[MAX_TIME]; /* to store thresholds */ 1191 1192 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1193 1194 spinlock_t fsync_node_lock; /* for node entry lock */ 1195 struct list_head fsync_node_list; /* node list head */ 1196 unsigned int fsync_seg_id; /* sequence id */ 1197 unsigned int fsync_node_num; /* number of node entries */ 1198 1199 /* for orphan inode, use 0'th array */ 1200 unsigned int max_orphans; /* max orphan inodes */ 1201 1202 /* for inode management */ 1203 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1204 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1205 1206 /* for extent tree cache */ 1207 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1208 struct mutex extent_tree_lock; /* locking extent radix tree */ 1209 struct list_head extent_list; /* lru list for shrinker */ 1210 spinlock_t extent_lock; /* locking extent lru list */ 1211 atomic_t total_ext_tree; /* extent tree count */ 1212 struct list_head zombie_list; /* extent zombie tree list */ 1213 atomic_t total_zombie_tree; /* extent zombie tree count */ 1214 atomic_t total_ext_node; /* extent info count */ 1215 1216 /* basic filesystem units */ 1217 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1218 unsigned int log_blocksize; /* log2 block size */ 1219 unsigned int blocksize; /* block size */ 1220 unsigned int root_ino_num; /* root inode number*/ 1221 unsigned int node_ino_num; /* node inode number*/ 1222 unsigned int meta_ino_num; /* meta inode number*/ 1223 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1224 unsigned int blocks_per_seg; /* blocks per segment */ 1225 unsigned int segs_per_sec; /* segments per section */ 1226 unsigned int secs_per_zone; /* sections per zone */ 1227 unsigned int total_sections; /* total section count */ 1228 unsigned int total_node_count; /* total node block count */ 1229 unsigned int total_valid_node_count; /* valid node block count */ 1230 loff_t max_file_blocks; /* max block index of file */ 1231 int dir_level; /* directory level */ 1232 int readdir_ra; /* readahead inode in readdir */ 1233 1234 block_t user_block_count; /* # of user blocks */ 1235 block_t total_valid_block_count; /* # of valid blocks */ 1236 block_t discard_blks; /* discard command candidats */ 1237 block_t last_valid_block_count; /* for recovery */ 1238 block_t reserved_blocks; /* configurable reserved blocks */ 1239 block_t current_reserved_blocks; /* current reserved blocks */ 1240 1241 /* Additional tracking for no checkpoint mode */ 1242 block_t unusable_block_count; /* # of blocks saved by last cp */ 1243 1244 unsigned int nquota_files; /* # of quota sysfile */ 1245 1246 u32 s_next_generation; /* for NFS support */ 1247 1248 /* # of pages, see count_type */ 1249 atomic_t nr_pages[NR_COUNT_TYPE]; 1250 /* # of allocated blocks */ 1251 struct percpu_counter alloc_valid_block_count; 1252 1253 /* writeback control */ 1254 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1255 1256 /* valid inode count */ 1257 struct percpu_counter total_valid_inode_count; 1258 1259 struct f2fs_mount_info mount_opt; /* mount options */ 1260 1261 /* for cleaning operations */ 1262 struct mutex gc_mutex; /* mutex for GC */ 1263 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1264 unsigned int cur_victim_sec; /* current victim section num */ 1265 unsigned int gc_mode; /* current GC state */ 1266 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1267 /* for skip statistic */ 1268 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1269 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1270 1271 /* threshold for gc trials on pinned files */ 1272 u64 gc_pin_file_threshold; 1273 1274 /* maximum # of trials to find a victim segment for SSR and GC */ 1275 unsigned int max_victim_search; 1276 /* migration granularity of garbage collection, unit: segment */ 1277 unsigned int migration_granularity; 1278 1279 /* 1280 * for stat information. 1281 * one is for the LFS mode, and the other is for the SSR mode. 1282 */ 1283 #ifdef CONFIG_F2FS_STAT_FS 1284 struct f2fs_stat_info *stat_info; /* FS status information */ 1285 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1286 unsigned int segment_count[2]; /* # of allocated segments */ 1287 unsigned int block_count[2]; /* # of allocated blocks */ 1288 atomic_t inplace_count; /* # of inplace update */ 1289 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1290 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1291 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1292 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1293 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1294 atomic_t inline_inode; /* # of inline_data inodes */ 1295 atomic_t inline_dir; /* # of inline_dentry inodes */ 1296 atomic_t aw_cnt; /* # of atomic writes */ 1297 atomic_t vw_cnt; /* # of volatile writes */ 1298 atomic_t max_aw_cnt; /* max # of atomic writes */ 1299 atomic_t max_vw_cnt; /* max # of volatile writes */ 1300 int bg_gc; /* background gc calls */ 1301 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1302 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1303 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1304 #endif 1305 spinlock_t stat_lock; /* lock for stat operations */ 1306 1307 /* For app/fs IO statistics */ 1308 spinlock_t iostat_lock; 1309 unsigned long long write_iostat[NR_IO_TYPE]; 1310 bool iostat_enable; 1311 1312 /* For sysfs suppport */ 1313 struct kobject s_kobj; 1314 struct completion s_kobj_unregister; 1315 1316 /* For shrinker support */ 1317 struct list_head s_list; 1318 int s_ndevs; /* number of devices */ 1319 struct f2fs_dev_info *devs; /* for device list */ 1320 unsigned int dirty_device; /* for checkpoint data flush */ 1321 spinlock_t dev_lock; /* protect dirty_device */ 1322 struct mutex umount_mutex; 1323 unsigned int shrinker_run_no; 1324 1325 /* For write statistics */ 1326 u64 sectors_written_start; 1327 u64 kbytes_written; 1328 1329 /* Reference to checksum algorithm driver via cryptoapi */ 1330 struct crypto_shash *s_chksum_driver; 1331 1332 /* Precomputed FS UUID checksum for seeding other checksums */ 1333 __u32 s_chksum_seed; 1334 }; 1335 1336 struct f2fs_private_dio { 1337 struct inode *inode; 1338 void *orig_private; 1339 bio_end_io_t *orig_end_io; 1340 bool write; 1341 }; 1342 1343 #ifdef CONFIG_F2FS_FAULT_INJECTION 1344 #define f2fs_show_injection_info(type) \ 1345 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \ 1346 KERN_INFO, f2fs_fault_name[type], \ 1347 __func__, __builtin_return_address(0)) 1348 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1349 { 1350 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1351 1352 if (!ffi->inject_rate) 1353 return false; 1354 1355 if (!IS_FAULT_SET(ffi, type)) 1356 return false; 1357 1358 atomic_inc(&ffi->inject_ops); 1359 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1360 atomic_set(&ffi->inject_ops, 0); 1361 return true; 1362 } 1363 return false; 1364 } 1365 #else 1366 #define f2fs_show_injection_info(type) do { } while (0) 1367 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1368 { 1369 return false; 1370 } 1371 #endif 1372 1373 /* For write statistics. Suppose sector size is 512 bytes, 1374 * and the return value is in kbytes. s is of struct f2fs_sb_info. 1375 */ 1376 #define BD_PART_WRITTEN(s) \ 1377 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \ 1378 (s)->sectors_written_start) >> 1) 1379 1380 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1381 { 1382 unsigned long now = jiffies; 1383 1384 sbi->last_time[type] = now; 1385 1386 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1387 if (type == REQ_TIME) { 1388 sbi->last_time[DISCARD_TIME] = now; 1389 sbi->last_time[GC_TIME] = now; 1390 } 1391 } 1392 1393 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1394 { 1395 unsigned long interval = sbi->interval_time[type] * HZ; 1396 1397 return time_after(jiffies, sbi->last_time[type] + interval); 1398 } 1399 1400 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1401 int type) 1402 { 1403 unsigned long interval = sbi->interval_time[type] * HZ; 1404 unsigned int wait_ms = 0; 1405 long delta; 1406 1407 delta = (sbi->last_time[type] + interval) - jiffies; 1408 if (delta > 0) 1409 wait_ms = jiffies_to_msecs(delta); 1410 1411 return wait_ms; 1412 } 1413 1414 /* 1415 * Inline functions 1416 */ 1417 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1418 const void *address, unsigned int length) 1419 { 1420 struct { 1421 struct shash_desc shash; 1422 char ctx[4]; 1423 } desc; 1424 int err; 1425 1426 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1427 1428 desc.shash.tfm = sbi->s_chksum_driver; 1429 desc.shash.flags = 0; 1430 *(u32 *)desc.ctx = crc; 1431 1432 err = crypto_shash_update(&desc.shash, address, length); 1433 BUG_ON(err); 1434 1435 return *(u32 *)desc.ctx; 1436 } 1437 1438 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1439 unsigned int length) 1440 { 1441 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1442 } 1443 1444 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1445 void *buf, size_t buf_size) 1446 { 1447 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1448 } 1449 1450 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1451 const void *address, unsigned int length) 1452 { 1453 return __f2fs_crc32(sbi, crc, address, length); 1454 } 1455 1456 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1457 { 1458 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1459 } 1460 1461 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1462 { 1463 return sb->s_fs_info; 1464 } 1465 1466 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1467 { 1468 return F2FS_SB(inode->i_sb); 1469 } 1470 1471 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1472 { 1473 return F2FS_I_SB(mapping->host); 1474 } 1475 1476 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1477 { 1478 return F2FS_M_SB(page->mapping); 1479 } 1480 1481 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1482 { 1483 return (struct f2fs_super_block *)(sbi->raw_super); 1484 } 1485 1486 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1487 { 1488 return (struct f2fs_checkpoint *)(sbi->ckpt); 1489 } 1490 1491 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1492 { 1493 return (struct f2fs_node *)page_address(page); 1494 } 1495 1496 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1497 { 1498 return &((struct f2fs_node *)page_address(page))->i; 1499 } 1500 1501 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1502 { 1503 return (struct f2fs_nm_info *)(sbi->nm_info); 1504 } 1505 1506 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1507 { 1508 return (struct f2fs_sm_info *)(sbi->sm_info); 1509 } 1510 1511 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1512 { 1513 return (struct sit_info *)(SM_I(sbi)->sit_info); 1514 } 1515 1516 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1517 { 1518 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1519 } 1520 1521 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1522 { 1523 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1524 } 1525 1526 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1527 { 1528 return sbi->meta_inode->i_mapping; 1529 } 1530 1531 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1532 { 1533 return sbi->node_inode->i_mapping; 1534 } 1535 1536 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1537 { 1538 return test_bit(type, &sbi->s_flag); 1539 } 1540 1541 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1542 { 1543 set_bit(type, &sbi->s_flag); 1544 } 1545 1546 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1547 { 1548 clear_bit(type, &sbi->s_flag); 1549 } 1550 1551 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1552 { 1553 return le64_to_cpu(cp->checkpoint_ver); 1554 } 1555 1556 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1557 { 1558 if (type < F2FS_MAX_QUOTAS) 1559 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1560 return 0; 1561 } 1562 1563 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1564 { 1565 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1566 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1567 } 1568 1569 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1570 { 1571 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1572 1573 return ckpt_flags & f; 1574 } 1575 1576 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1577 { 1578 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1579 } 1580 1581 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1582 { 1583 unsigned int ckpt_flags; 1584 1585 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1586 ckpt_flags |= f; 1587 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1588 } 1589 1590 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1591 { 1592 unsigned long flags; 1593 1594 spin_lock_irqsave(&sbi->cp_lock, flags); 1595 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1596 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1597 } 1598 1599 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1600 { 1601 unsigned int ckpt_flags; 1602 1603 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1604 ckpt_flags &= (~f); 1605 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1606 } 1607 1608 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1609 { 1610 unsigned long flags; 1611 1612 spin_lock_irqsave(&sbi->cp_lock, flags); 1613 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1614 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1615 } 1616 1617 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1618 { 1619 unsigned long flags; 1620 1621 /* 1622 * In order to re-enable nat_bits we need to call fsck.f2fs by 1623 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1624 * so let's rely on regular fsck or unclean shutdown. 1625 */ 1626 1627 if (lock) 1628 spin_lock_irqsave(&sbi->cp_lock, flags); 1629 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 1630 kvfree(NM_I(sbi)->nat_bits); 1631 NM_I(sbi)->nat_bits = NULL; 1632 if (lock) 1633 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1634 } 1635 1636 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 1637 struct cp_control *cpc) 1638 { 1639 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 1640 1641 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 1642 } 1643 1644 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 1645 { 1646 down_read(&sbi->cp_rwsem); 1647 } 1648 1649 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 1650 { 1651 return down_read_trylock(&sbi->cp_rwsem); 1652 } 1653 1654 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 1655 { 1656 up_read(&sbi->cp_rwsem); 1657 } 1658 1659 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 1660 { 1661 down_write(&sbi->cp_rwsem); 1662 } 1663 1664 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 1665 { 1666 up_write(&sbi->cp_rwsem); 1667 } 1668 1669 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 1670 { 1671 int reason = CP_SYNC; 1672 1673 if (test_opt(sbi, FASTBOOT)) 1674 reason = CP_FASTBOOT; 1675 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 1676 reason = CP_UMOUNT; 1677 return reason; 1678 } 1679 1680 static inline bool __remain_node_summaries(int reason) 1681 { 1682 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 1683 } 1684 1685 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 1686 { 1687 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 1688 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 1689 } 1690 1691 /* 1692 * Check whether the inode has blocks or not 1693 */ 1694 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 1695 { 1696 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 1697 1698 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 1699 } 1700 1701 static inline bool f2fs_has_xattr_block(unsigned int ofs) 1702 { 1703 return ofs == XATTR_NODE_OFFSET; 1704 } 1705 1706 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 1707 struct inode *inode, bool cap) 1708 { 1709 if (!inode) 1710 return true; 1711 if (!test_opt(sbi, RESERVE_ROOT)) 1712 return false; 1713 if (IS_NOQUOTA(inode)) 1714 return true; 1715 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 1716 return true; 1717 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 1718 in_group_p(F2FS_OPTION(sbi).s_resgid)) 1719 return true; 1720 if (cap && capable(CAP_SYS_RESOURCE)) 1721 return true; 1722 return false; 1723 } 1724 1725 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 1726 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 1727 struct inode *inode, blkcnt_t *count) 1728 { 1729 blkcnt_t diff = 0, release = 0; 1730 block_t avail_user_block_count; 1731 int ret; 1732 1733 ret = dquot_reserve_block(inode, *count); 1734 if (ret) 1735 return ret; 1736 1737 if (time_to_inject(sbi, FAULT_BLOCK)) { 1738 f2fs_show_injection_info(FAULT_BLOCK); 1739 release = *count; 1740 goto enospc; 1741 } 1742 1743 /* 1744 * let's increase this in prior to actual block count change in order 1745 * for f2fs_sync_file to avoid data races when deciding checkpoint. 1746 */ 1747 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 1748 1749 spin_lock(&sbi->stat_lock); 1750 sbi->total_valid_block_count += (block_t)(*count); 1751 avail_user_block_count = sbi->user_block_count - 1752 sbi->current_reserved_blocks; 1753 1754 if (!__allow_reserved_blocks(sbi, inode, true)) 1755 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 1756 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1757 avail_user_block_count -= sbi->unusable_block_count; 1758 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 1759 diff = sbi->total_valid_block_count - avail_user_block_count; 1760 if (diff > *count) 1761 diff = *count; 1762 *count -= diff; 1763 release = diff; 1764 sbi->total_valid_block_count -= diff; 1765 if (!*count) { 1766 spin_unlock(&sbi->stat_lock); 1767 goto enospc; 1768 } 1769 } 1770 spin_unlock(&sbi->stat_lock); 1771 1772 if (unlikely(release)) { 1773 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1774 dquot_release_reservation_block(inode, release); 1775 } 1776 f2fs_i_blocks_write(inode, *count, true, true); 1777 return 0; 1778 1779 enospc: 1780 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1781 dquot_release_reservation_block(inode, release); 1782 return -ENOSPC; 1783 } 1784 1785 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 1786 struct inode *inode, 1787 block_t count) 1788 { 1789 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 1790 1791 spin_lock(&sbi->stat_lock); 1792 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 1793 f2fs_bug_on(sbi, inode->i_blocks < sectors); 1794 sbi->total_valid_block_count -= (block_t)count; 1795 if (sbi->reserved_blocks && 1796 sbi->current_reserved_blocks < sbi->reserved_blocks) 1797 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 1798 sbi->current_reserved_blocks + count); 1799 spin_unlock(&sbi->stat_lock); 1800 f2fs_i_blocks_write(inode, count, false, true); 1801 } 1802 1803 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 1804 { 1805 atomic_inc(&sbi->nr_pages[count_type]); 1806 1807 if (count_type == F2FS_DIRTY_DENTS || 1808 count_type == F2FS_DIRTY_NODES || 1809 count_type == F2FS_DIRTY_META || 1810 count_type == F2FS_DIRTY_QDATA || 1811 count_type == F2FS_DIRTY_IMETA) 1812 set_sbi_flag(sbi, SBI_IS_DIRTY); 1813 } 1814 1815 static inline void inode_inc_dirty_pages(struct inode *inode) 1816 { 1817 atomic_inc(&F2FS_I(inode)->dirty_pages); 1818 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1819 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1820 if (IS_NOQUOTA(inode)) 1821 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1822 } 1823 1824 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 1825 { 1826 atomic_dec(&sbi->nr_pages[count_type]); 1827 } 1828 1829 static inline void inode_dec_dirty_pages(struct inode *inode) 1830 { 1831 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 1832 !S_ISLNK(inode->i_mode)) 1833 return; 1834 1835 atomic_dec(&F2FS_I(inode)->dirty_pages); 1836 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1837 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1838 if (IS_NOQUOTA(inode)) 1839 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1840 } 1841 1842 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 1843 { 1844 return atomic_read(&sbi->nr_pages[count_type]); 1845 } 1846 1847 static inline int get_dirty_pages(struct inode *inode) 1848 { 1849 return atomic_read(&F2FS_I(inode)->dirty_pages); 1850 } 1851 1852 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 1853 { 1854 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 1855 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 1856 sbi->log_blocks_per_seg; 1857 1858 return segs / sbi->segs_per_sec; 1859 } 1860 1861 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 1862 { 1863 return sbi->total_valid_block_count; 1864 } 1865 1866 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 1867 { 1868 return sbi->discard_blks; 1869 } 1870 1871 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 1872 { 1873 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1874 1875 /* return NAT or SIT bitmap */ 1876 if (flag == NAT_BITMAP) 1877 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 1878 else if (flag == SIT_BITMAP) 1879 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 1880 1881 return 0; 1882 } 1883 1884 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 1885 { 1886 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 1887 } 1888 1889 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 1890 { 1891 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1892 int offset; 1893 1894 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 1895 offset = (flag == SIT_BITMAP) ? 1896 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 1897 return &ckpt->sit_nat_version_bitmap + offset; 1898 } 1899 1900 if (__cp_payload(sbi) > 0) { 1901 if (flag == NAT_BITMAP) 1902 return &ckpt->sit_nat_version_bitmap; 1903 else 1904 return (unsigned char *)ckpt + F2FS_BLKSIZE; 1905 } else { 1906 offset = (flag == NAT_BITMAP) ? 1907 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 1908 return &ckpt->sit_nat_version_bitmap + offset; 1909 } 1910 } 1911 1912 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 1913 { 1914 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1915 1916 if (sbi->cur_cp_pack == 2) 1917 start_addr += sbi->blocks_per_seg; 1918 return start_addr; 1919 } 1920 1921 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 1922 { 1923 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1924 1925 if (sbi->cur_cp_pack == 1) 1926 start_addr += sbi->blocks_per_seg; 1927 return start_addr; 1928 } 1929 1930 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 1931 { 1932 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 1933 } 1934 1935 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 1936 { 1937 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 1938 } 1939 1940 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 1941 struct inode *inode, bool is_inode) 1942 { 1943 block_t valid_block_count; 1944 unsigned int valid_node_count; 1945 int err; 1946 1947 if (is_inode) { 1948 if (inode) { 1949 err = dquot_alloc_inode(inode); 1950 if (err) 1951 return err; 1952 } 1953 } else { 1954 err = dquot_reserve_block(inode, 1); 1955 if (err) 1956 return err; 1957 } 1958 1959 if (time_to_inject(sbi, FAULT_BLOCK)) { 1960 f2fs_show_injection_info(FAULT_BLOCK); 1961 goto enospc; 1962 } 1963 1964 spin_lock(&sbi->stat_lock); 1965 1966 valid_block_count = sbi->total_valid_block_count + 1967 sbi->current_reserved_blocks + 1; 1968 1969 if (!__allow_reserved_blocks(sbi, inode, false)) 1970 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 1971 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1972 valid_block_count += sbi->unusable_block_count; 1973 1974 if (unlikely(valid_block_count > sbi->user_block_count)) { 1975 spin_unlock(&sbi->stat_lock); 1976 goto enospc; 1977 } 1978 1979 valid_node_count = sbi->total_valid_node_count + 1; 1980 if (unlikely(valid_node_count > sbi->total_node_count)) { 1981 spin_unlock(&sbi->stat_lock); 1982 goto enospc; 1983 } 1984 1985 sbi->total_valid_node_count++; 1986 sbi->total_valid_block_count++; 1987 spin_unlock(&sbi->stat_lock); 1988 1989 if (inode) { 1990 if (is_inode) 1991 f2fs_mark_inode_dirty_sync(inode, true); 1992 else 1993 f2fs_i_blocks_write(inode, 1, true, true); 1994 } 1995 1996 percpu_counter_inc(&sbi->alloc_valid_block_count); 1997 return 0; 1998 1999 enospc: 2000 if (is_inode) { 2001 if (inode) 2002 dquot_free_inode(inode); 2003 } else { 2004 dquot_release_reservation_block(inode, 1); 2005 } 2006 return -ENOSPC; 2007 } 2008 2009 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2010 struct inode *inode, bool is_inode) 2011 { 2012 spin_lock(&sbi->stat_lock); 2013 2014 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2015 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2016 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks); 2017 2018 sbi->total_valid_node_count--; 2019 sbi->total_valid_block_count--; 2020 if (sbi->reserved_blocks && 2021 sbi->current_reserved_blocks < sbi->reserved_blocks) 2022 sbi->current_reserved_blocks++; 2023 2024 spin_unlock(&sbi->stat_lock); 2025 2026 if (is_inode) 2027 dquot_free_inode(inode); 2028 else 2029 f2fs_i_blocks_write(inode, 1, false, true); 2030 } 2031 2032 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2033 { 2034 return sbi->total_valid_node_count; 2035 } 2036 2037 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2038 { 2039 percpu_counter_inc(&sbi->total_valid_inode_count); 2040 } 2041 2042 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2043 { 2044 percpu_counter_dec(&sbi->total_valid_inode_count); 2045 } 2046 2047 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2048 { 2049 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2050 } 2051 2052 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2053 pgoff_t index, bool for_write) 2054 { 2055 struct page *page; 2056 2057 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2058 if (!for_write) 2059 page = find_get_page_flags(mapping, index, 2060 FGP_LOCK | FGP_ACCESSED); 2061 else 2062 page = find_lock_page(mapping, index); 2063 if (page) 2064 return page; 2065 2066 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2067 f2fs_show_injection_info(FAULT_PAGE_ALLOC); 2068 return NULL; 2069 } 2070 } 2071 2072 if (!for_write) 2073 return grab_cache_page(mapping, index); 2074 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2075 } 2076 2077 static inline struct page *f2fs_pagecache_get_page( 2078 struct address_space *mapping, pgoff_t index, 2079 int fgp_flags, gfp_t gfp_mask) 2080 { 2081 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2082 f2fs_show_injection_info(FAULT_PAGE_GET); 2083 return NULL; 2084 } 2085 2086 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2087 } 2088 2089 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2090 { 2091 char *src_kaddr = kmap(src); 2092 char *dst_kaddr = kmap(dst); 2093 2094 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2095 kunmap(dst); 2096 kunmap(src); 2097 } 2098 2099 static inline void f2fs_put_page(struct page *page, int unlock) 2100 { 2101 if (!page) 2102 return; 2103 2104 if (unlock) { 2105 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2106 unlock_page(page); 2107 } 2108 put_page(page); 2109 } 2110 2111 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2112 { 2113 if (dn->node_page) 2114 f2fs_put_page(dn->node_page, 1); 2115 if (dn->inode_page && dn->node_page != dn->inode_page) 2116 f2fs_put_page(dn->inode_page, 0); 2117 dn->node_page = NULL; 2118 dn->inode_page = NULL; 2119 } 2120 2121 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2122 size_t size) 2123 { 2124 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2125 } 2126 2127 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2128 gfp_t flags) 2129 { 2130 void *entry; 2131 2132 entry = kmem_cache_alloc(cachep, flags); 2133 if (!entry) 2134 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2135 return entry; 2136 } 2137 2138 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, 2139 int npages, bool no_fail) 2140 { 2141 struct bio *bio; 2142 2143 if (no_fail) { 2144 /* No failure on bio allocation */ 2145 bio = bio_alloc(GFP_NOIO, npages); 2146 if (!bio) 2147 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); 2148 return bio; 2149 } 2150 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) { 2151 f2fs_show_injection_info(FAULT_ALLOC_BIO); 2152 return NULL; 2153 } 2154 2155 return bio_alloc(GFP_KERNEL, npages); 2156 } 2157 2158 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2159 { 2160 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2161 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2162 get_pages(sbi, F2FS_WB_CP_DATA) || 2163 get_pages(sbi, F2FS_DIO_READ) || 2164 get_pages(sbi, F2FS_DIO_WRITE)) 2165 return false; 2166 2167 if (SM_I(sbi) && SM_I(sbi)->dcc_info && 2168 atomic_read(&SM_I(sbi)->dcc_info->queued_discard)) 2169 return false; 2170 2171 if (SM_I(sbi) && SM_I(sbi)->fcc_info && 2172 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2173 return false; 2174 2175 return f2fs_time_over(sbi, type); 2176 } 2177 2178 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2179 unsigned long index, void *item) 2180 { 2181 while (radix_tree_insert(root, index, item)) 2182 cond_resched(); 2183 } 2184 2185 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2186 2187 static inline bool IS_INODE(struct page *page) 2188 { 2189 struct f2fs_node *p = F2FS_NODE(page); 2190 2191 return RAW_IS_INODE(p); 2192 } 2193 2194 static inline int offset_in_addr(struct f2fs_inode *i) 2195 { 2196 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2197 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2198 } 2199 2200 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2201 { 2202 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2203 } 2204 2205 static inline int f2fs_has_extra_attr(struct inode *inode); 2206 static inline block_t datablock_addr(struct inode *inode, 2207 struct page *node_page, unsigned int offset) 2208 { 2209 struct f2fs_node *raw_node; 2210 __le32 *addr_array; 2211 int base = 0; 2212 bool is_inode = IS_INODE(node_page); 2213 2214 raw_node = F2FS_NODE(node_page); 2215 2216 /* from GC path only */ 2217 if (is_inode) { 2218 if (!inode) 2219 base = offset_in_addr(&raw_node->i); 2220 else if (f2fs_has_extra_attr(inode)) 2221 base = get_extra_isize(inode); 2222 } 2223 2224 addr_array = blkaddr_in_node(raw_node); 2225 return le32_to_cpu(addr_array[base + offset]); 2226 } 2227 2228 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2229 { 2230 int mask; 2231 2232 addr += (nr >> 3); 2233 mask = 1 << (7 - (nr & 0x07)); 2234 return mask & *addr; 2235 } 2236 2237 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2238 { 2239 int mask; 2240 2241 addr += (nr >> 3); 2242 mask = 1 << (7 - (nr & 0x07)); 2243 *addr |= mask; 2244 } 2245 2246 static inline void f2fs_clear_bit(unsigned int nr, char *addr) 2247 { 2248 int mask; 2249 2250 addr += (nr >> 3); 2251 mask = 1 << (7 - (nr & 0x07)); 2252 *addr &= ~mask; 2253 } 2254 2255 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2256 { 2257 int mask; 2258 int ret; 2259 2260 addr += (nr >> 3); 2261 mask = 1 << (7 - (nr & 0x07)); 2262 ret = mask & *addr; 2263 *addr |= mask; 2264 return ret; 2265 } 2266 2267 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2268 { 2269 int mask; 2270 int ret; 2271 2272 addr += (nr >> 3); 2273 mask = 1 << (7 - (nr & 0x07)); 2274 ret = mask & *addr; 2275 *addr &= ~mask; 2276 return ret; 2277 } 2278 2279 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2280 { 2281 int mask; 2282 2283 addr += (nr >> 3); 2284 mask = 1 << (7 - (nr & 0x07)); 2285 *addr ^= mask; 2286 } 2287 2288 /* 2289 * Inode flags 2290 */ 2291 #define F2FS_SECRM_FL 0x00000001 /* Secure deletion */ 2292 #define F2FS_UNRM_FL 0x00000002 /* Undelete */ 2293 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2294 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2295 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2296 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2297 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2298 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2299 /* Reserved for compression usage... */ 2300 #define F2FS_DIRTY_FL 0x00000100 2301 #define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ 2302 #define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */ 2303 #define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */ 2304 /* End compression flags --- maybe not all used */ 2305 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2306 #define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */ 2307 #define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */ 2308 #define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */ 2309 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2310 #define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ 2311 #define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */ 2312 #define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */ 2313 #define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */ 2314 #define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */ 2315 #define F2FS_NOCOW_FL 0x00800000 /* Do not cow file */ 2316 #define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */ 2317 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2318 #define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */ 2319 2320 #define F2FS_FL_USER_VISIBLE 0x30CBDFFF /* User visible flags */ 2321 #define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */ 2322 2323 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */ 2324 #define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \ 2325 F2FS_IMMUTABLE_FL | \ 2326 F2FS_APPEND_FL | \ 2327 F2FS_NODUMP_FL | \ 2328 F2FS_NOATIME_FL | \ 2329 F2FS_PROJINHERIT_FL) 2330 2331 /* Flags that should be inherited by new inodes from their parent. */ 2332 #define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\ 2333 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\ 2334 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\ 2335 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\ 2336 F2FS_PROJINHERIT_FL) 2337 2338 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2339 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL)) 2340 2341 /* Flags that are appropriate for non-directories/regular files. */ 2342 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2343 2344 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2345 { 2346 if (S_ISDIR(mode)) 2347 return flags; 2348 else if (S_ISREG(mode)) 2349 return flags & F2FS_REG_FLMASK; 2350 else 2351 return flags & F2FS_OTHER_FLMASK; 2352 } 2353 2354 /* used for f2fs_inode_info->flags */ 2355 enum { 2356 FI_NEW_INODE, /* indicate newly allocated inode */ 2357 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 2358 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 2359 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 2360 FI_INC_LINK, /* need to increment i_nlink */ 2361 FI_ACL_MODE, /* indicate acl mode */ 2362 FI_NO_ALLOC, /* should not allocate any blocks */ 2363 FI_FREE_NID, /* free allocated nide */ 2364 FI_NO_EXTENT, /* not to use the extent cache */ 2365 FI_INLINE_XATTR, /* used for inline xattr */ 2366 FI_INLINE_DATA, /* used for inline data*/ 2367 FI_INLINE_DENTRY, /* used for inline dentry */ 2368 FI_APPEND_WRITE, /* inode has appended data */ 2369 FI_UPDATE_WRITE, /* inode has in-place-update data */ 2370 FI_NEED_IPU, /* used for ipu per file */ 2371 FI_ATOMIC_FILE, /* indicate atomic file */ 2372 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 2373 FI_VOLATILE_FILE, /* indicate volatile file */ 2374 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 2375 FI_DROP_CACHE, /* drop dirty page cache */ 2376 FI_DATA_EXIST, /* indicate data exists */ 2377 FI_INLINE_DOTS, /* indicate inline dot dentries */ 2378 FI_DO_DEFRAG, /* indicate defragment is running */ 2379 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 2380 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 2381 FI_HOT_DATA, /* indicate file is hot */ 2382 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 2383 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 2384 FI_PIN_FILE, /* indicate file should not be gced */ 2385 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 2386 }; 2387 2388 static inline void __mark_inode_dirty_flag(struct inode *inode, 2389 int flag, bool set) 2390 { 2391 switch (flag) { 2392 case FI_INLINE_XATTR: 2393 case FI_INLINE_DATA: 2394 case FI_INLINE_DENTRY: 2395 case FI_NEW_INODE: 2396 if (set) 2397 return; 2398 /* fall through */ 2399 case FI_DATA_EXIST: 2400 case FI_INLINE_DOTS: 2401 case FI_PIN_FILE: 2402 f2fs_mark_inode_dirty_sync(inode, true); 2403 } 2404 } 2405 2406 static inline void set_inode_flag(struct inode *inode, int flag) 2407 { 2408 if (!test_bit(flag, &F2FS_I(inode)->flags)) 2409 set_bit(flag, &F2FS_I(inode)->flags); 2410 __mark_inode_dirty_flag(inode, flag, true); 2411 } 2412 2413 static inline int is_inode_flag_set(struct inode *inode, int flag) 2414 { 2415 return test_bit(flag, &F2FS_I(inode)->flags); 2416 } 2417 2418 static inline void clear_inode_flag(struct inode *inode, int flag) 2419 { 2420 if (test_bit(flag, &F2FS_I(inode)->flags)) 2421 clear_bit(flag, &F2FS_I(inode)->flags); 2422 __mark_inode_dirty_flag(inode, flag, false); 2423 } 2424 2425 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2426 { 2427 F2FS_I(inode)->i_acl_mode = mode; 2428 set_inode_flag(inode, FI_ACL_MODE); 2429 f2fs_mark_inode_dirty_sync(inode, false); 2430 } 2431 2432 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2433 { 2434 if (inc) 2435 inc_nlink(inode); 2436 else 2437 drop_nlink(inode); 2438 f2fs_mark_inode_dirty_sync(inode, true); 2439 } 2440 2441 static inline void f2fs_i_blocks_write(struct inode *inode, 2442 block_t diff, bool add, bool claim) 2443 { 2444 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2445 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2446 2447 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2448 if (add) { 2449 if (claim) 2450 dquot_claim_block(inode, diff); 2451 else 2452 dquot_alloc_block_nofail(inode, diff); 2453 } else { 2454 dquot_free_block(inode, diff); 2455 } 2456 2457 f2fs_mark_inode_dirty_sync(inode, true); 2458 if (clean || recover) 2459 set_inode_flag(inode, FI_AUTO_RECOVER); 2460 } 2461 2462 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2463 { 2464 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2465 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2466 2467 if (i_size_read(inode) == i_size) 2468 return; 2469 2470 i_size_write(inode, i_size); 2471 f2fs_mark_inode_dirty_sync(inode, true); 2472 if (clean || recover) 2473 set_inode_flag(inode, FI_AUTO_RECOVER); 2474 } 2475 2476 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2477 { 2478 F2FS_I(inode)->i_current_depth = depth; 2479 f2fs_mark_inode_dirty_sync(inode, true); 2480 } 2481 2482 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2483 unsigned int count) 2484 { 2485 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2486 f2fs_mark_inode_dirty_sync(inode, true); 2487 } 2488 2489 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2490 { 2491 F2FS_I(inode)->i_xattr_nid = xnid; 2492 f2fs_mark_inode_dirty_sync(inode, true); 2493 } 2494 2495 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2496 { 2497 F2FS_I(inode)->i_pino = pino; 2498 f2fs_mark_inode_dirty_sync(inode, true); 2499 } 2500 2501 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2502 { 2503 struct f2fs_inode_info *fi = F2FS_I(inode); 2504 2505 if (ri->i_inline & F2FS_INLINE_XATTR) 2506 set_bit(FI_INLINE_XATTR, &fi->flags); 2507 if (ri->i_inline & F2FS_INLINE_DATA) 2508 set_bit(FI_INLINE_DATA, &fi->flags); 2509 if (ri->i_inline & F2FS_INLINE_DENTRY) 2510 set_bit(FI_INLINE_DENTRY, &fi->flags); 2511 if (ri->i_inline & F2FS_DATA_EXIST) 2512 set_bit(FI_DATA_EXIST, &fi->flags); 2513 if (ri->i_inline & F2FS_INLINE_DOTS) 2514 set_bit(FI_INLINE_DOTS, &fi->flags); 2515 if (ri->i_inline & F2FS_EXTRA_ATTR) 2516 set_bit(FI_EXTRA_ATTR, &fi->flags); 2517 if (ri->i_inline & F2FS_PIN_FILE) 2518 set_bit(FI_PIN_FILE, &fi->flags); 2519 } 2520 2521 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2522 { 2523 ri->i_inline = 0; 2524 2525 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2526 ri->i_inline |= F2FS_INLINE_XATTR; 2527 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2528 ri->i_inline |= F2FS_INLINE_DATA; 2529 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2530 ri->i_inline |= F2FS_INLINE_DENTRY; 2531 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2532 ri->i_inline |= F2FS_DATA_EXIST; 2533 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2534 ri->i_inline |= F2FS_INLINE_DOTS; 2535 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2536 ri->i_inline |= F2FS_EXTRA_ATTR; 2537 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2538 ri->i_inline |= F2FS_PIN_FILE; 2539 } 2540 2541 static inline int f2fs_has_extra_attr(struct inode *inode) 2542 { 2543 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2544 } 2545 2546 static inline int f2fs_has_inline_xattr(struct inode *inode) 2547 { 2548 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2549 } 2550 2551 static inline unsigned int addrs_per_inode(struct inode *inode) 2552 { 2553 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode); 2554 } 2555 2556 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2557 { 2558 struct f2fs_inode *ri = F2FS_INODE(page); 2559 2560 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2561 get_inline_xattr_addrs(inode)]); 2562 } 2563 2564 static inline int inline_xattr_size(struct inode *inode) 2565 { 2566 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2567 } 2568 2569 static inline int f2fs_has_inline_data(struct inode *inode) 2570 { 2571 return is_inode_flag_set(inode, FI_INLINE_DATA); 2572 } 2573 2574 static inline int f2fs_exist_data(struct inode *inode) 2575 { 2576 return is_inode_flag_set(inode, FI_DATA_EXIST); 2577 } 2578 2579 static inline int f2fs_has_inline_dots(struct inode *inode) 2580 { 2581 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2582 } 2583 2584 static inline bool f2fs_is_pinned_file(struct inode *inode) 2585 { 2586 return is_inode_flag_set(inode, FI_PIN_FILE); 2587 } 2588 2589 static inline bool f2fs_is_atomic_file(struct inode *inode) 2590 { 2591 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2592 } 2593 2594 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2595 { 2596 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 2597 } 2598 2599 static inline bool f2fs_is_volatile_file(struct inode *inode) 2600 { 2601 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 2602 } 2603 2604 static inline bool f2fs_is_first_block_written(struct inode *inode) 2605 { 2606 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 2607 } 2608 2609 static inline bool f2fs_is_drop_cache(struct inode *inode) 2610 { 2611 return is_inode_flag_set(inode, FI_DROP_CACHE); 2612 } 2613 2614 static inline void *inline_data_addr(struct inode *inode, struct page *page) 2615 { 2616 struct f2fs_inode *ri = F2FS_INODE(page); 2617 int extra_size = get_extra_isize(inode); 2618 2619 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 2620 } 2621 2622 static inline int f2fs_has_inline_dentry(struct inode *inode) 2623 { 2624 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 2625 } 2626 2627 static inline int is_file(struct inode *inode, int type) 2628 { 2629 return F2FS_I(inode)->i_advise & type; 2630 } 2631 2632 static inline void set_file(struct inode *inode, int type) 2633 { 2634 F2FS_I(inode)->i_advise |= type; 2635 f2fs_mark_inode_dirty_sync(inode, true); 2636 } 2637 2638 static inline void clear_file(struct inode *inode, int type) 2639 { 2640 F2FS_I(inode)->i_advise &= ~type; 2641 f2fs_mark_inode_dirty_sync(inode, true); 2642 } 2643 2644 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 2645 { 2646 bool ret; 2647 2648 if (dsync) { 2649 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2650 2651 spin_lock(&sbi->inode_lock[DIRTY_META]); 2652 ret = list_empty(&F2FS_I(inode)->gdirty_list); 2653 spin_unlock(&sbi->inode_lock[DIRTY_META]); 2654 return ret; 2655 } 2656 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 2657 file_keep_isize(inode) || 2658 i_size_read(inode) & ~PAGE_MASK) 2659 return false; 2660 2661 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 2662 return false; 2663 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 2664 return false; 2665 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 2666 return false; 2667 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 2668 &F2FS_I(inode)->i_crtime)) 2669 return false; 2670 2671 down_read(&F2FS_I(inode)->i_sem); 2672 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 2673 up_read(&F2FS_I(inode)->i_sem); 2674 2675 return ret; 2676 } 2677 2678 static inline bool f2fs_readonly(struct super_block *sb) 2679 { 2680 return sb_rdonly(sb); 2681 } 2682 2683 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 2684 { 2685 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 2686 } 2687 2688 static inline bool is_dot_dotdot(const struct qstr *str) 2689 { 2690 if (str->len == 1 && str->name[0] == '.') 2691 return true; 2692 2693 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') 2694 return true; 2695 2696 return false; 2697 } 2698 2699 static inline bool f2fs_may_extent_tree(struct inode *inode) 2700 { 2701 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2702 2703 if (!test_opt(sbi, EXTENT_CACHE) || 2704 is_inode_flag_set(inode, FI_NO_EXTENT)) 2705 return false; 2706 2707 /* 2708 * for recovered files during mount do not create extents 2709 * if shrinker is not registered. 2710 */ 2711 if (list_empty(&sbi->s_list)) 2712 return false; 2713 2714 return S_ISREG(inode->i_mode); 2715 } 2716 2717 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 2718 size_t size, gfp_t flags) 2719 { 2720 void *ret; 2721 2722 if (time_to_inject(sbi, FAULT_KMALLOC)) { 2723 f2fs_show_injection_info(FAULT_KMALLOC); 2724 return NULL; 2725 } 2726 2727 ret = kmalloc(size, flags); 2728 if (ret) 2729 return ret; 2730 2731 return kvmalloc(size, flags); 2732 } 2733 2734 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 2735 size_t size, gfp_t flags) 2736 { 2737 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 2738 } 2739 2740 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 2741 size_t size, gfp_t flags) 2742 { 2743 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 2744 f2fs_show_injection_info(FAULT_KVMALLOC); 2745 return NULL; 2746 } 2747 2748 return kvmalloc(size, flags); 2749 } 2750 2751 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 2752 size_t size, gfp_t flags) 2753 { 2754 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 2755 } 2756 2757 static inline int get_extra_isize(struct inode *inode) 2758 { 2759 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 2760 } 2761 2762 static inline int get_inline_xattr_addrs(struct inode *inode) 2763 { 2764 return F2FS_I(inode)->i_inline_xattr_size; 2765 } 2766 2767 #define f2fs_get_inode_mode(i) \ 2768 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 2769 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 2770 2771 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 2772 (offsetof(struct f2fs_inode, i_extra_end) - \ 2773 offsetof(struct f2fs_inode, i_extra_isize)) \ 2774 2775 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 2776 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 2777 ((offsetof(typeof(*(f2fs_inode)), field) + \ 2778 sizeof((f2fs_inode)->field)) \ 2779 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 2780 2781 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 2782 { 2783 int i; 2784 2785 spin_lock(&sbi->iostat_lock); 2786 for (i = 0; i < NR_IO_TYPE; i++) 2787 sbi->write_iostat[i] = 0; 2788 spin_unlock(&sbi->iostat_lock); 2789 } 2790 2791 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 2792 enum iostat_type type, unsigned long long io_bytes) 2793 { 2794 if (!sbi->iostat_enable) 2795 return; 2796 spin_lock(&sbi->iostat_lock); 2797 sbi->write_iostat[type] += io_bytes; 2798 2799 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 2800 sbi->write_iostat[APP_BUFFERED_IO] = 2801 sbi->write_iostat[APP_WRITE_IO] - 2802 sbi->write_iostat[APP_DIRECT_IO]; 2803 spin_unlock(&sbi->iostat_lock); 2804 } 2805 2806 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 2807 2808 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META && \ 2809 (!is_read_io((fio)->op) || (fio)->is_meta)) 2810 2811 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 2812 block_t blkaddr, int type); 2813 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2814 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 2815 block_t blkaddr, int type) 2816 { 2817 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 2818 f2fs_msg(sbi->sb, KERN_ERR, 2819 "invalid blkaddr: %u, type: %d, run fsck to fix.", 2820 blkaddr, type); 2821 f2fs_bug_on(sbi, 1); 2822 } 2823 } 2824 2825 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 2826 { 2827 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR) 2828 return false; 2829 return true; 2830 } 2831 2832 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi, 2833 block_t blkaddr) 2834 { 2835 if (!__is_valid_data_blkaddr(blkaddr)) 2836 return false; 2837 verify_blkaddr(sbi, blkaddr, DATA_GENERIC); 2838 return true; 2839 } 2840 2841 /* 2842 * file.c 2843 */ 2844 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 2845 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 2846 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock); 2847 int f2fs_truncate(struct inode *inode); 2848 int f2fs_getattr(const struct path *path, struct kstat *stat, 2849 u32 request_mask, unsigned int flags); 2850 int f2fs_setattr(struct dentry *dentry, struct iattr *attr); 2851 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 2852 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 2853 int f2fs_precache_extents(struct inode *inode); 2854 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 2855 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 2856 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 2857 int f2fs_pin_file_control(struct inode *inode, bool inc); 2858 2859 /* 2860 * inode.c 2861 */ 2862 void f2fs_set_inode_flags(struct inode *inode); 2863 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 2864 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 2865 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 2866 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 2867 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 2868 void f2fs_update_inode(struct inode *inode, struct page *node_page); 2869 void f2fs_update_inode_page(struct inode *inode); 2870 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 2871 void f2fs_evict_inode(struct inode *inode); 2872 void f2fs_handle_failed_inode(struct inode *inode); 2873 2874 /* 2875 * namei.c 2876 */ 2877 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 2878 bool hot, bool set); 2879 struct dentry *f2fs_get_parent(struct dentry *child); 2880 2881 /* 2882 * dir.c 2883 */ 2884 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 2885 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname, 2886 f2fs_hash_t namehash, int *max_slots, 2887 struct f2fs_dentry_ptr *d); 2888 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 2889 unsigned int start_pos, struct fscrypt_str *fstr); 2890 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 2891 struct f2fs_dentry_ptr *d); 2892 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 2893 const struct qstr *new_name, 2894 const struct qstr *orig_name, struct page *dpage); 2895 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 2896 unsigned int current_depth); 2897 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 2898 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 2899 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 2900 struct fscrypt_name *fname, struct page **res_page); 2901 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 2902 const struct qstr *child, struct page **res_page); 2903 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 2904 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 2905 struct page **page); 2906 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 2907 struct page *page, struct inode *inode); 2908 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 2909 const struct qstr *name, f2fs_hash_t name_hash, 2910 unsigned int bit_pos); 2911 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, 2912 const struct qstr *orig_name, 2913 struct inode *inode, nid_t ino, umode_t mode); 2914 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname, 2915 struct inode *inode, nid_t ino, umode_t mode); 2916 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 2917 struct inode *inode, nid_t ino, umode_t mode); 2918 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 2919 struct inode *dir, struct inode *inode); 2920 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 2921 bool f2fs_empty_dir(struct inode *dir); 2922 2923 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 2924 { 2925 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 2926 inode, inode->i_ino, inode->i_mode); 2927 } 2928 2929 /* 2930 * super.c 2931 */ 2932 int f2fs_inode_dirtied(struct inode *inode, bool sync); 2933 void f2fs_inode_synced(struct inode *inode); 2934 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 2935 int f2fs_quota_sync(struct super_block *sb, int type); 2936 void f2fs_quota_off_umount(struct super_block *sb); 2937 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 2938 int f2fs_sync_fs(struct super_block *sb, int sync); 2939 extern __printf(3, 4) 2940 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2941 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 2942 2943 /* 2944 * hash.c 2945 */ 2946 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info, 2947 struct fscrypt_name *fname); 2948 2949 /* 2950 * node.c 2951 */ 2952 struct dnode_of_data; 2953 struct node_info; 2954 2955 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); 2956 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); 2957 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); 2958 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); 2959 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); 2960 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); 2961 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); 2962 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); 2963 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); 2964 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 2965 struct node_info *ni); 2966 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); 2967 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); 2968 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); 2969 int f2fs_truncate_xattr_node(struct inode *inode); 2970 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 2971 unsigned int seq_id); 2972 int f2fs_remove_inode_page(struct inode *inode); 2973 struct page *f2fs_new_inode_page(struct inode *inode); 2974 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); 2975 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); 2976 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); 2977 struct page *f2fs_get_node_page_ra(struct page *parent, int start); 2978 int f2fs_move_node_page(struct page *node_page, int gc_type); 2979 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 2980 struct writeback_control *wbc, bool atomic, 2981 unsigned int *seq_id); 2982 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 2983 struct writeback_control *wbc, 2984 bool do_balance, enum iostat_type io_type); 2985 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); 2986 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); 2987 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); 2988 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); 2989 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); 2990 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page); 2991 int f2fs_recover_xattr_data(struct inode *inode, struct page *page); 2992 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); 2993 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 2994 unsigned int segno, struct f2fs_summary_block *sum); 2995 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 2996 int f2fs_build_node_manager(struct f2fs_sb_info *sbi); 2997 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); 2998 int __init f2fs_create_node_manager_caches(void); 2999 void f2fs_destroy_node_manager_caches(void); 3000 3001 /* 3002 * segment.c 3003 */ 3004 bool f2fs_need_SSR(struct f2fs_sb_info *sbi); 3005 void f2fs_register_inmem_page(struct inode *inode, struct page *page); 3006 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); 3007 void f2fs_drop_inmem_pages(struct inode *inode); 3008 void f2fs_drop_inmem_page(struct inode *inode, struct page *page); 3009 int f2fs_commit_inmem_pages(struct inode *inode); 3010 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); 3011 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); 3012 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); 3013 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); 3014 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); 3015 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); 3016 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); 3017 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); 3018 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); 3019 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); 3020 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); 3021 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, 3022 struct cp_control *cpc); 3023 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); 3024 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi); 3025 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); 3026 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); 3027 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3028 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3029 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3030 struct cp_control *cpc); 3031 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3032 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3033 block_t blk_addr); 3034 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3035 enum iostat_type io_type); 3036 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3037 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3038 struct f2fs_io_info *fio); 3039 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3040 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3041 block_t old_blkaddr, block_t new_blkaddr, 3042 bool recover_curseg, bool recover_newaddr); 3043 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3044 block_t old_addr, block_t new_addr, 3045 unsigned char version, bool recover_curseg, 3046 bool recover_newaddr); 3047 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3048 block_t old_blkaddr, block_t *new_blkaddr, 3049 struct f2fs_summary *sum, int type, 3050 struct f2fs_io_info *fio, bool add_list); 3051 void f2fs_wait_on_page_writeback(struct page *page, 3052 enum page_type type, bool ordered, bool locked); 3053 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3054 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3055 block_t len); 3056 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3057 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3058 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3059 unsigned int val, int alloc); 3060 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3061 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3062 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3063 int __init f2fs_create_segment_manager_caches(void); 3064 void f2fs_destroy_segment_manager_caches(void); 3065 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3066 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3067 enum page_type type, enum temp_type temp); 3068 3069 /* 3070 * checkpoint.c 3071 */ 3072 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3073 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3074 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3075 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index); 3076 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3077 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3078 block_t blkaddr, int type); 3079 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3080 int type, bool sync); 3081 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3082 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3083 long nr_to_write, enum iostat_type io_type); 3084 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3085 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3086 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3087 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3088 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3089 unsigned int devidx, int type); 3090 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3091 unsigned int devidx, int type); 3092 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3093 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3094 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3095 void f2fs_add_orphan_inode(struct inode *inode); 3096 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3097 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3098 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3099 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3100 void f2fs_remove_dirty_inode(struct inode *inode); 3101 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3102 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi); 3103 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3104 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3105 int __init f2fs_create_checkpoint_caches(void); 3106 void f2fs_destroy_checkpoint_caches(void); 3107 3108 /* 3109 * data.c 3110 */ 3111 int f2fs_init_post_read_processing(void); 3112 void f2fs_destroy_post_read_processing(void); 3113 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3114 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3115 struct inode *inode, struct page *page, 3116 nid_t ino, enum page_type type); 3117 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3118 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3119 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3120 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3121 block_t blk_addr, struct bio *bio); 3122 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3123 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3124 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3125 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3126 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3127 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3128 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3129 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3130 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3131 int op_flags, bool for_write); 3132 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3133 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3134 bool for_write); 3135 struct page *f2fs_get_new_data_page(struct inode *inode, 3136 struct page *ipage, pgoff_t index, bool new_i_size); 3137 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3138 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3139 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3140 int create, int flag); 3141 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3142 u64 start, u64 len); 3143 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3144 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3145 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3146 unsigned int length); 3147 int f2fs_release_page(struct page *page, gfp_t wait); 3148 #ifdef CONFIG_MIGRATION 3149 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3150 struct page *page, enum migrate_mode mode); 3151 #endif 3152 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3153 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3154 3155 /* 3156 * gc.c 3157 */ 3158 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3159 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3160 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3161 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, 3162 unsigned int segno); 3163 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3164 3165 /* 3166 * recovery.c 3167 */ 3168 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3169 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3170 3171 /* 3172 * debug.c 3173 */ 3174 #ifdef CONFIG_F2FS_STAT_FS 3175 struct f2fs_stat_info { 3176 struct list_head stat_list; 3177 struct f2fs_sb_info *sbi; 3178 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3179 int main_area_segs, main_area_sections, main_area_zones; 3180 unsigned long long hit_largest, hit_cached, hit_rbtree; 3181 unsigned long long hit_total, total_ext; 3182 int ext_tree, zombie_tree, ext_node; 3183 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3184 int ndirty_data, ndirty_qdata; 3185 int inmem_pages; 3186 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3187 int nats, dirty_nats, sits, dirty_sits; 3188 int free_nids, avail_nids, alloc_nids; 3189 int total_count, utilization; 3190 int bg_gc, nr_wb_cp_data, nr_wb_data; 3191 int nr_rd_data, nr_rd_node, nr_rd_meta; 3192 int nr_dio_read, nr_dio_write; 3193 unsigned int io_skip_bggc, other_skip_bggc; 3194 int nr_flushing, nr_flushed, flush_list_empty; 3195 int nr_discarding, nr_discarded; 3196 int nr_discard_cmd; 3197 unsigned int undiscard_blks; 3198 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3199 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3200 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3201 unsigned int bimodal, avg_vblocks; 3202 int util_free, util_valid, util_invalid; 3203 int rsvd_segs, overp_segs; 3204 int dirty_count, node_pages, meta_pages; 3205 int prefree_count, call_count, cp_count, bg_cp_count; 3206 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3207 int bg_node_segs, bg_data_segs; 3208 int tot_blks, data_blks, node_blks; 3209 int bg_data_blks, bg_node_blks; 3210 unsigned long long skipped_atomic_files[2]; 3211 int curseg[NR_CURSEG_TYPE]; 3212 int cursec[NR_CURSEG_TYPE]; 3213 int curzone[NR_CURSEG_TYPE]; 3214 3215 unsigned int meta_count[META_MAX]; 3216 unsigned int segment_count[2]; 3217 unsigned int block_count[2]; 3218 unsigned int inplace_count; 3219 unsigned long long base_mem, cache_mem, page_mem; 3220 }; 3221 3222 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3223 { 3224 return (struct f2fs_stat_info *)sbi->stat_info; 3225 } 3226 3227 #define stat_inc_cp_count(si) ((si)->cp_count++) 3228 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3229 #define stat_inc_call_count(si) ((si)->call_count++) 3230 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) 3231 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3232 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3233 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3234 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3235 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3236 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3237 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3238 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3239 #define stat_inc_inline_xattr(inode) \ 3240 do { \ 3241 if (f2fs_has_inline_xattr(inode)) \ 3242 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3243 } while (0) 3244 #define stat_dec_inline_xattr(inode) \ 3245 do { \ 3246 if (f2fs_has_inline_xattr(inode)) \ 3247 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3248 } while (0) 3249 #define stat_inc_inline_inode(inode) \ 3250 do { \ 3251 if (f2fs_has_inline_data(inode)) \ 3252 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3253 } while (0) 3254 #define stat_dec_inline_inode(inode) \ 3255 do { \ 3256 if (f2fs_has_inline_data(inode)) \ 3257 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3258 } while (0) 3259 #define stat_inc_inline_dir(inode) \ 3260 do { \ 3261 if (f2fs_has_inline_dentry(inode)) \ 3262 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3263 } while (0) 3264 #define stat_dec_inline_dir(inode) \ 3265 do { \ 3266 if (f2fs_has_inline_dentry(inode)) \ 3267 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3268 } while (0) 3269 #define stat_inc_meta_count(sbi, blkaddr) \ 3270 do { \ 3271 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3272 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3273 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3274 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3275 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3276 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3277 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3278 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3279 } while (0) 3280 #define stat_inc_seg_type(sbi, curseg) \ 3281 ((sbi)->segment_count[(curseg)->alloc_type]++) 3282 #define stat_inc_block_count(sbi, curseg) \ 3283 ((sbi)->block_count[(curseg)->alloc_type]++) 3284 #define stat_inc_inplace_blocks(sbi) \ 3285 (atomic_inc(&(sbi)->inplace_count)) 3286 #define stat_inc_atomic_write(inode) \ 3287 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt)) 3288 #define stat_dec_atomic_write(inode) \ 3289 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt)) 3290 #define stat_update_max_atomic_write(inode) \ 3291 do { \ 3292 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \ 3293 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3294 if (cur > max) \ 3295 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3296 } while (0) 3297 #define stat_inc_volatile_write(inode) \ 3298 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3299 #define stat_dec_volatile_write(inode) \ 3300 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3301 #define stat_update_max_volatile_write(inode) \ 3302 do { \ 3303 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3304 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3305 if (cur > max) \ 3306 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3307 } while (0) 3308 #define stat_inc_seg_count(sbi, type, gc_type) \ 3309 do { \ 3310 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3311 si->tot_segs++; \ 3312 if ((type) == SUM_TYPE_DATA) { \ 3313 si->data_segs++; \ 3314 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3315 } else { \ 3316 si->node_segs++; \ 3317 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3318 } \ 3319 } while (0) 3320 3321 #define stat_inc_tot_blk_count(si, blks) \ 3322 ((si)->tot_blks += (blks)) 3323 3324 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3325 do { \ 3326 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3327 stat_inc_tot_blk_count(si, blks); \ 3328 si->data_blks += (blks); \ 3329 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3330 } while (0) 3331 3332 #define stat_inc_node_blk_count(sbi, blks, gc_type) \ 3333 do { \ 3334 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3335 stat_inc_tot_blk_count(si, blks); \ 3336 si->node_blks += (blks); \ 3337 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3338 } while (0) 3339 3340 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3341 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3342 void __init f2fs_create_root_stats(void); 3343 void f2fs_destroy_root_stats(void); 3344 #else 3345 #define stat_inc_cp_count(si) do { } while (0) 3346 #define stat_inc_bg_cp_count(si) do { } while (0) 3347 #define stat_inc_call_count(si) do { } while (0) 3348 #define stat_inc_bggc_count(si) do { } while (0) 3349 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3350 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3351 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3352 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3353 #define stat_inc_total_hit(sb) do { } while (0) 3354 #define stat_inc_rbtree_node_hit(sb) do { } while (0) 3355 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3356 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3357 #define stat_inc_inline_xattr(inode) do { } while (0) 3358 #define stat_dec_inline_xattr(inode) do { } while (0) 3359 #define stat_inc_inline_inode(inode) do { } while (0) 3360 #define stat_dec_inline_inode(inode) do { } while (0) 3361 #define stat_inc_inline_dir(inode) do { } while (0) 3362 #define stat_dec_inline_dir(inode) do { } while (0) 3363 #define stat_inc_atomic_write(inode) do { } while (0) 3364 #define stat_dec_atomic_write(inode) do { } while (0) 3365 #define stat_update_max_atomic_write(inode) do { } while (0) 3366 #define stat_inc_volatile_write(inode) do { } while (0) 3367 #define stat_dec_volatile_write(inode) do { } while (0) 3368 #define stat_update_max_volatile_write(inode) do { } while (0) 3369 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3370 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3371 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3372 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3373 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3374 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3375 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3376 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3377 3378 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3379 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3380 static inline void __init f2fs_create_root_stats(void) { } 3381 static inline void f2fs_destroy_root_stats(void) { } 3382 #endif 3383 3384 extern const struct file_operations f2fs_dir_operations; 3385 extern const struct file_operations f2fs_file_operations; 3386 extern const struct inode_operations f2fs_file_inode_operations; 3387 extern const struct address_space_operations f2fs_dblock_aops; 3388 extern const struct address_space_operations f2fs_node_aops; 3389 extern const struct address_space_operations f2fs_meta_aops; 3390 extern const struct inode_operations f2fs_dir_inode_operations; 3391 extern const struct inode_operations f2fs_symlink_inode_operations; 3392 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3393 extern const struct inode_operations f2fs_special_inode_operations; 3394 extern struct kmem_cache *f2fs_inode_entry_slab; 3395 3396 /* 3397 * inline.c 3398 */ 3399 bool f2fs_may_inline_data(struct inode *inode); 3400 bool f2fs_may_inline_dentry(struct inode *inode); 3401 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3402 void f2fs_truncate_inline_inode(struct inode *inode, 3403 struct page *ipage, u64 from); 3404 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3405 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3406 int f2fs_convert_inline_inode(struct inode *inode); 3407 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3408 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3409 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3410 struct fscrypt_name *fname, struct page **res_page); 3411 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3412 struct page *ipage); 3413 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, 3414 const struct qstr *orig_name, 3415 struct inode *inode, nid_t ino, umode_t mode); 3416 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3417 struct page *page, struct inode *dir, 3418 struct inode *inode); 3419 bool f2fs_empty_inline_dir(struct inode *dir); 3420 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3421 struct fscrypt_str *fstr); 3422 int f2fs_inline_data_fiemap(struct inode *inode, 3423 struct fiemap_extent_info *fieinfo, 3424 __u64 start, __u64 len); 3425 3426 /* 3427 * shrinker.c 3428 */ 3429 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3430 struct shrink_control *sc); 3431 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3432 struct shrink_control *sc); 3433 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3434 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3435 3436 /* 3437 * extent_cache.c 3438 */ 3439 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3440 struct rb_entry *cached_re, unsigned int ofs); 3441 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3442 struct rb_root_cached *root, 3443 struct rb_node **parent, 3444 unsigned int ofs, bool *leftmost); 3445 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3446 struct rb_entry *cached_re, unsigned int ofs, 3447 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3448 struct rb_node ***insert_p, struct rb_node **insert_parent, 3449 bool force, bool *leftmost); 3450 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3451 struct rb_root_cached *root); 3452 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3453 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); 3454 void f2fs_drop_extent_tree(struct inode *inode); 3455 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3456 void f2fs_destroy_extent_tree(struct inode *inode); 3457 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3458 struct extent_info *ei); 3459 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3460 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3461 pgoff_t fofs, block_t blkaddr, unsigned int len); 3462 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3463 int __init f2fs_create_extent_cache(void); 3464 void f2fs_destroy_extent_cache(void); 3465 3466 /* 3467 * sysfs.c 3468 */ 3469 int __init f2fs_init_sysfs(void); 3470 void f2fs_exit_sysfs(void); 3471 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3472 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3473 3474 /* 3475 * crypto support 3476 */ 3477 static inline bool f2fs_encrypted_inode(struct inode *inode) 3478 { 3479 return file_is_encrypt(inode); 3480 } 3481 3482 static inline bool f2fs_encrypted_file(struct inode *inode) 3483 { 3484 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode); 3485 } 3486 3487 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3488 { 3489 #ifdef CONFIG_F2FS_FS_ENCRYPTION 3490 file_set_encrypt(inode); 3491 f2fs_set_inode_flags(inode); 3492 #endif 3493 } 3494 3495 /* 3496 * Returns true if the reads of the inode's data need to undergo some 3497 * postprocessing step, like decryption or authenticity verification. 3498 */ 3499 static inline bool f2fs_post_read_required(struct inode *inode) 3500 { 3501 return f2fs_encrypted_file(inode); 3502 } 3503 3504 #define F2FS_FEATURE_FUNCS(name, flagname) \ 3505 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 3506 { \ 3507 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 3508 } 3509 3510 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 3511 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 3512 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 3513 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 3514 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 3515 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 3516 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 3517 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 3518 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 3519 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 3520 3521 #ifdef CONFIG_BLK_DEV_ZONED 3522 static inline int get_blkz_type(struct f2fs_sb_info *sbi, 3523 struct block_device *bdev, block_t blkaddr) 3524 { 3525 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 3526 int i; 3527 3528 for (i = 0; i < sbi->s_ndevs; i++) 3529 if (FDEV(i).bdev == bdev) 3530 return FDEV(i).blkz_type[zno]; 3531 return -EINVAL; 3532 } 3533 #endif 3534 3535 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 3536 { 3537 return f2fs_sb_has_blkzoned(sbi); 3538 } 3539 3540 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 3541 { 3542 return blk_queue_discard(bdev_get_queue(sbi->sb->s_bdev)); 3543 } 3544 3545 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 3546 { 3547 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 3548 f2fs_hw_should_discard(sbi); 3549 } 3550 3551 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) 3552 { 3553 clear_opt(sbi, ADAPTIVE); 3554 clear_opt(sbi, LFS); 3555 3556 switch (mt) { 3557 case F2FS_MOUNT_ADAPTIVE: 3558 set_opt(sbi, ADAPTIVE); 3559 break; 3560 case F2FS_MOUNT_LFS: 3561 set_opt(sbi, LFS); 3562 break; 3563 } 3564 } 3565 3566 static inline bool f2fs_may_encrypt(struct inode *inode) 3567 { 3568 #ifdef CONFIG_F2FS_FS_ENCRYPTION 3569 umode_t mode = inode->i_mode; 3570 3571 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); 3572 #else 3573 return false; 3574 #endif 3575 } 3576 3577 static inline int block_unaligned_IO(struct inode *inode, 3578 struct kiocb *iocb, struct iov_iter *iter) 3579 { 3580 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 3581 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 3582 loff_t offset = iocb->ki_pos; 3583 unsigned long align = offset | iov_iter_alignment(iter); 3584 3585 return align & blocksize_mask; 3586 } 3587 3588 static inline int allow_outplace_dio(struct inode *inode, 3589 struct kiocb *iocb, struct iov_iter *iter) 3590 { 3591 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3592 int rw = iov_iter_rw(iter); 3593 3594 return (test_opt(sbi, LFS) && (rw == WRITE) && 3595 !block_unaligned_IO(inode, iocb, iter)); 3596 } 3597 3598 static inline bool f2fs_force_buffered_io(struct inode *inode, 3599 struct kiocb *iocb, struct iov_iter *iter) 3600 { 3601 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3602 int rw = iov_iter_rw(iter); 3603 3604 if (f2fs_post_read_required(inode)) 3605 return true; 3606 if (sbi->s_ndevs) 3607 return true; 3608 /* 3609 * for blkzoned device, fallback direct IO to buffered IO, so 3610 * all IOs can be serialized by log-structured write. 3611 */ 3612 if (f2fs_sb_has_blkzoned(sbi)) 3613 return true; 3614 if (test_opt(sbi, LFS) && (rw == WRITE) && 3615 block_unaligned_IO(inode, iocb, iter)) 3616 return true; 3617 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) 3618 return true; 3619 3620 return false; 3621 } 3622 3623 #ifdef CONFIG_F2FS_FAULT_INJECTION 3624 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 3625 unsigned int type); 3626 #else 3627 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 3628 #endif 3629 3630 #endif 3631 3632 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 3633 { 3634 #ifdef CONFIG_QUOTA 3635 if (f2fs_sb_has_quota_ino(sbi)) 3636 return true; 3637 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 3638 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 3639 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 3640 return true; 3641 #endif 3642 return false; 3643 } 3644