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_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */ 195 196 struct cp_control { 197 int reason; 198 __u64 trim_start; 199 __u64 trim_end; 200 __u64 trim_minlen; 201 }; 202 203 /* 204 * indicate meta/data type 205 */ 206 enum { 207 META_CP, 208 META_NAT, 209 META_SIT, 210 META_SSA, 211 META_MAX, 212 META_POR, 213 DATA_GENERIC, 214 META_GENERIC, 215 }; 216 217 /* for the list of ino */ 218 enum { 219 ORPHAN_INO, /* for orphan ino list */ 220 APPEND_INO, /* for append ino list */ 221 UPDATE_INO, /* for update ino list */ 222 TRANS_DIR_INO, /* for trasactions dir ino list */ 223 FLUSH_INO, /* for multiple device flushing */ 224 MAX_INO_ENTRY, /* max. list */ 225 }; 226 227 struct ino_entry { 228 struct list_head list; /* list head */ 229 nid_t ino; /* inode number */ 230 unsigned int dirty_device; /* dirty device bitmap */ 231 }; 232 233 /* for the list of inodes to be GCed */ 234 struct inode_entry { 235 struct list_head list; /* list head */ 236 struct inode *inode; /* vfs inode pointer */ 237 }; 238 239 struct fsync_node_entry { 240 struct list_head list; /* list head */ 241 struct page *page; /* warm node page pointer */ 242 unsigned int seq_id; /* sequence id */ 243 }; 244 245 /* for the bitmap indicate blocks to be discarded */ 246 struct discard_entry { 247 struct list_head list; /* list head */ 248 block_t start_blkaddr; /* start blockaddr of current segment */ 249 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */ 250 }; 251 252 /* default discard granularity of inner discard thread, unit: block count */ 253 #define DEFAULT_DISCARD_GRANULARITY 16 254 255 /* max discard pend list number */ 256 #define MAX_PLIST_NUM 512 257 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \ 258 (MAX_PLIST_NUM - 1) : ((blk_num) - 1)) 259 260 enum { 261 D_PREP, /* initial */ 262 D_PARTIAL, /* partially submitted */ 263 D_SUBMIT, /* all submitted */ 264 D_DONE, /* finished */ 265 }; 266 267 struct discard_info { 268 block_t lstart; /* logical start address */ 269 block_t len; /* length */ 270 block_t start; /* actual start address in dev */ 271 }; 272 273 struct discard_cmd { 274 struct rb_node rb_node; /* rb node located in rb-tree */ 275 union { 276 struct { 277 block_t lstart; /* logical start address */ 278 block_t len; /* length */ 279 block_t start; /* actual start address in dev */ 280 }; 281 struct discard_info di; /* discard info */ 282 283 }; 284 struct list_head list; /* command list */ 285 struct completion wait; /* compleation */ 286 struct block_device *bdev; /* bdev */ 287 unsigned short ref; /* reference count */ 288 unsigned char state; /* state */ 289 unsigned char queued; /* queued discard */ 290 int error; /* bio error */ 291 spinlock_t lock; /* for state/bio_ref updating */ 292 unsigned short bio_ref; /* bio reference count */ 293 }; 294 295 enum { 296 DPOLICY_BG, 297 DPOLICY_FORCE, 298 DPOLICY_FSTRIM, 299 DPOLICY_UMOUNT, 300 MAX_DPOLICY, 301 }; 302 303 struct discard_policy { 304 int type; /* type of discard */ 305 unsigned int min_interval; /* used for candidates exist */ 306 unsigned int mid_interval; /* used for device busy */ 307 unsigned int max_interval; /* used for candidates not exist */ 308 unsigned int max_requests; /* # of discards issued per round */ 309 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ 310 bool io_aware; /* issue discard in idle time */ 311 bool sync; /* submit discard with REQ_SYNC flag */ 312 bool ordered; /* issue discard by lba order */ 313 unsigned int granularity; /* discard granularity */ 314 int timeout; /* discard timeout for put_super */ 315 }; 316 317 struct discard_cmd_control { 318 struct task_struct *f2fs_issue_discard; /* discard thread */ 319 struct list_head entry_list; /* 4KB discard entry list */ 320 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */ 321 struct list_head wait_list; /* store on-flushing entries */ 322 struct list_head fstrim_list; /* in-flight discard from fstrim */ 323 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */ 324 unsigned int discard_wake; /* to wake up discard thread */ 325 struct mutex cmd_lock; 326 unsigned int nr_discards; /* # of discards in the list */ 327 unsigned int max_discards; /* max. discards to be issued */ 328 unsigned int discard_granularity; /* discard granularity */ 329 unsigned int undiscard_blks; /* # of undiscard blocks */ 330 unsigned int next_pos; /* next discard position */ 331 atomic_t issued_discard; /* # of issued discard */ 332 atomic_t queued_discard; /* # of queued discard */ 333 atomic_t discard_cmd_cnt; /* # of cached cmd count */ 334 struct rb_root_cached root; /* root of discard rb-tree */ 335 bool rbtree_check; /* config for consistence check */ 336 }; 337 338 /* for the list of fsync inodes, used only during recovery */ 339 struct fsync_inode_entry { 340 struct list_head list; /* list head */ 341 struct inode *inode; /* vfs inode pointer */ 342 block_t blkaddr; /* block address locating the last fsync */ 343 block_t last_dentry; /* block address locating the last dentry */ 344 }; 345 346 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats)) 347 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits)) 348 349 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne) 350 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid) 351 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se) 352 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno) 353 354 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl)) 355 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl)) 356 357 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i) 358 { 359 int before = nats_in_cursum(journal); 360 361 journal->n_nats = cpu_to_le16(before + i); 362 return before; 363 } 364 365 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i) 366 { 367 int before = sits_in_cursum(journal); 368 369 journal->n_sits = cpu_to_le16(before + i); 370 return before; 371 } 372 373 static inline bool __has_cursum_space(struct f2fs_journal *journal, 374 int size, int type) 375 { 376 if (type == NAT_JOURNAL) 377 return size <= MAX_NAT_JENTRIES(journal); 378 return size <= MAX_SIT_JENTRIES(journal); 379 } 380 381 /* 382 * ioctl commands 383 */ 384 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS 385 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS 386 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION 387 388 #define F2FS_IOCTL_MAGIC 0xf5 389 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1) 390 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2) 391 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3) 392 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4) 393 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5) 394 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32) 395 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7) 396 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \ 397 struct f2fs_defragment) 398 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \ 399 struct f2fs_move_range) 400 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \ 401 struct f2fs_flush_device) 402 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \ 403 struct f2fs_gc_range) 404 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32) 405 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32) 406 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32) 407 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15) 408 409 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY 410 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY 411 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT 412 413 /* 414 * should be same as XFS_IOC_GOINGDOWN. 415 * Flags for going down operation used by FS_IOC_GOINGDOWN 416 */ 417 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */ 418 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */ 419 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */ 420 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */ 421 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */ 422 #define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */ 423 424 #if defined(__KERNEL__) && defined(CONFIG_COMPAT) 425 /* 426 * ioctl commands in 32 bit emulation 427 */ 428 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS 429 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS 430 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION 431 #endif 432 433 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 434 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 435 436 struct f2fs_gc_range { 437 u32 sync; 438 u64 start; 439 u64 len; 440 }; 441 442 struct f2fs_defragment { 443 u64 start; 444 u64 len; 445 }; 446 447 struct f2fs_move_range { 448 u32 dst_fd; /* destination fd */ 449 u64 pos_in; /* start position in src_fd */ 450 u64 pos_out; /* start position in dst_fd */ 451 u64 len; /* size to move */ 452 }; 453 454 struct f2fs_flush_device { 455 u32 dev_num; /* device number to flush */ 456 u32 segments; /* # of segments to flush */ 457 }; 458 459 /* for inline stuff */ 460 #define DEF_INLINE_RESERVED_SIZE 1 461 #define DEF_MIN_INLINE_SIZE 1 462 static inline int get_extra_isize(struct inode *inode); 463 static inline int get_inline_xattr_addrs(struct inode *inode); 464 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \ 465 (CUR_ADDRS_PER_INODE(inode) - \ 466 get_inline_xattr_addrs(inode) - \ 467 DEF_INLINE_RESERVED_SIZE)) 468 469 /* for inline dir */ 470 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \ 471 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 472 BITS_PER_BYTE + 1)) 473 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \ 474 BITS_PER_BYTE - 1) / BITS_PER_BYTE) 475 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \ 476 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 477 NR_INLINE_DENTRY(inode) + \ 478 INLINE_DENTRY_BITMAP_SIZE(inode))) 479 480 /* 481 * For INODE and NODE manager 482 */ 483 /* for directory operations */ 484 struct f2fs_dentry_ptr { 485 struct inode *inode; 486 void *bitmap; 487 struct f2fs_dir_entry *dentry; 488 __u8 (*filename)[F2FS_SLOT_LEN]; 489 int max; 490 int nr_bitmap; 491 }; 492 493 static inline void make_dentry_ptr_block(struct inode *inode, 494 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t) 495 { 496 d->inode = inode; 497 d->max = NR_DENTRY_IN_BLOCK; 498 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP; 499 d->bitmap = t->dentry_bitmap; 500 d->dentry = t->dentry; 501 d->filename = t->filename; 502 } 503 504 static inline void make_dentry_ptr_inline(struct inode *inode, 505 struct f2fs_dentry_ptr *d, void *t) 506 { 507 int entry_cnt = NR_INLINE_DENTRY(inode); 508 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode); 509 int reserved_size = INLINE_RESERVED_SIZE(inode); 510 511 d->inode = inode; 512 d->max = entry_cnt; 513 d->nr_bitmap = bitmap_size; 514 d->bitmap = t; 515 d->dentry = t + bitmap_size + reserved_size; 516 d->filename = t + bitmap_size + reserved_size + 517 SIZE_OF_DIR_ENTRY * entry_cnt; 518 } 519 520 /* 521 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1 522 * as its node offset to distinguish from index node blocks. 523 * But some bits are used to mark the node block. 524 */ 525 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 526 >> OFFSET_BIT_SHIFT) 527 enum { 528 ALLOC_NODE, /* allocate a new node page if needed */ 529 LOOKUP_NODE, /* look up a node without readahead */ 530 LOOKUP_NODE_RA, /* 531 * look up a node with readahead called 532 * by get_data_block. 533 */ 534 }; 535 536 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */ 537 538 /* maximum retry quota flush count */ 539 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8 540 541 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */ 542 543 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */ 544 545 /* for in-memory extent cache entry */ 546 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */ 547 548 /* number of extent info in extent cache we try to shrink */ 549 #define EXTENT_CACHE_SHRINK_NUMBER 128 550 551 struct rb_entry { 552 struct rb_node rb_node; /* rb node located in rb-tree */ 553 unsigned int ofs; /* start offset of the entry */ 554 unsigned int len; /* length of the entry */ 555 }; 556 557 struct extent_info { 558 unsigned int fofs; /* start offset in a file */ 559 unsigned int len; /* length of the extent */ 560 u32 blk; /* start block address of the extent */ 561 }; 562 563 struct extent_node { 564 struct rb_node rb_node; /* rb node located in rb-tree */ 565 struct extent_info ei; /* extent info */ 566 struct list_head list; /* node in global extent list of sbi */ 567 struct extent_tree *et; /* extent tree pointer */ 568 }; 569 570 struct extent_tree { 571 nid_t ino; /* inode number */ 572 struct rb_root_cached root; /* root of extent info rb-tree */ 573 struct extent_node *cached_en; /* recently accessed extent node */ 574 struct extent_info largest; /* largested extent info */ 575 struct list_head list; /* to be used by sbi->zombie_list */ 576 rwlock_t lock; /* protect extent info rb-tree */ 577 atomic_t node_cnt; /* # of extent node in rb-tree*/ 578 bool largest_updated; /* largest extent updated */ 579 }; 580 581 /* 582 * This structure is taken from ext4_map_blocks. 583 * 584 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks(). 585 */ 586 #define F2FS_MAP_NEW (1 << BH_New) 587 #define F2FS_MAP_MAPPED (1 << BH_Mapped) 588 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten) 589 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\ 590 F2FS_MAP_UNWRITTEN) 591 592 struct f2fs_map_blocks { 593 block_t m_pblk; 594 block_t m_lblk; 595 unsigned int m_len; 596 unsigned int m_flags; 597 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */ 598 pgoff_t *m_next_extent; /* point to next possible extent */ 599 int m_seg_type; 600 bool m_may_create; /* indicate it is from write path */ 601 }; 602 603 /* for flag in get_data_block */ 604 enum { 605 F2FS_GET_BLOCK_DEFAULT, 606 F2FS_GET_BLOCK_FIEMAP, 607 F2FS_GET_BLOCK_BMAP, 608 F2FS_GET_BLOCK_DIO, 609 F2FS_GET_BLOCK_PRE_DIO, 610 F2FS_GET_BLOCK_PRE_AIO, 611 F2FS_GET_BLOCK_PRECACHE, 612 }; 613 614 /* 615 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later. 616 */ 617 #define FADVISE_COLD_BIT 0x01 618 #define FADVISE_LOST_PINO_BIT 0x02 619 #define FADVISE_ENCRYPT_BIT 0x04 620 #define FADVISE_ENC_NAME_BIT 0x08 621 #define FADVISE_KEEP_SIZE_BIT 0x10 622 #define FADVISE_HOT_BIT 0x20 623 #define FADVISE_VERITY_BIT 0x40 /* reserved */ 624 625 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT) 626 627 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT) 628 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT) 629 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT) 630 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT) 631 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT) 632 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT) 633 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT) 634 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT) 635 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT) 636 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT) 637 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT) 638 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT) 639 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT) 640 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT) 641 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT) 642 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT) 643 644 #define DEF_DIR_LEVEL 0 645 646 enum { 647 GC_FAILURE_PIN, 648 GC_FAILURE_ATOMIC, 649 MAX_GC_FAILURE 650 }; 651 652 struct f2fs_inode_info { 653 struct inode vfs_inode; /* serve a vfs inode */ 654 unsigned long i_flags; /* keep an inode flags for ioctl */ 655 unsigned char i_advise; /* use to give file attribute hints */ 656 unsigned char i_dir_level; /* use for dentry level for large dir */ 657 unsigned int i_current_depth; /* only for directory depth */ 658 /* for gc failure statistic */ 659 unsigned int i_gc_failures[MAX_GC_FAILURE]; 660 unsigned int i_pino; /* parent inode number */ 661 umode_t i_acl_mode; /* keep file acl mode temporarily */ 662 663 /* Use below internally in f2fs*/ 664 unsigned long flags; /* use to pass per-file flags */ 665 struct rw_semaphore i_sem; /* protect fi info */ 666 atomic_t dirty_pages; /* # of dirty pages */ 667 f2fs_hash_t chash; /* hash value of given file name */ 668 unsigned int clevel; /* maximum level of given file name */ 669 struct task_struct *task; /* lookup and create consistency */ 670 struct task_struct *cp_task; /* separate cp/wb IO stats*/ 671 nid_t i_xattr_nid; /* node id that contains xattrs */ 672 loff_t last_disk_size; /* lastly written file size */ 673 674 #ifdef CONFIG_QUOTA 675 struct dquot *i_dquot[MAXQUOTAS]; 676 677 /* quota space reservation, managed internally by quota code */ 678 qsize_t i_reserved_quota; 679 #endif 680 struct list_head dirty_list; /* dirty list for dirs and files */ 681 struct list_head gdirty_list; /* linked in global dirty list */ 682 struct list_head inmem_ilist; /* list for inmem inodes */ 683 struct list_head inmem_pages; /* inmemory pages managed by f2fs */ 684 struct task_struct *inmem_task; /* store inmemory task */ 685 struct mutex inmem_lock; /* lock for inmemory pages */ 686 struct extent_tree *extent_tree; /* cached extent_tree entry */ 687 688 /* avoid racing between foreground op and gc */ 689 struct rw_semaphore i_gc_rwsem[2]; 690 struct rw_semaphore i_mmap_sem; 691 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */ 692 693 int i_extra_isize; /* size of extra space located in i_addr */ 694 kprojid_t i_projid; /* id for project quota */ 695 int i_inline_xattr_size; /* inline xattr size */ 696 struct timespec64 i_crtime; /* inode creation time */ 697 struct timespec64 i_disk_time[4];/* inode disk times */ 698 }; 699 700 static inline void get_extent_info(struct extent_info *ext, 701 struct f2fs_extent *i_ext) 702 { 703 ext->fofs = le32_to_cpu(i_ext->fofs); 704 ext->blk = le32_to_cpu(i_ext->blk); 705 ext->len = le32_to_cpu(i_ext->len); 706 } 707 708 static inline void set_raw_extent(struct extent_info *ext, 709 struct f2fs_extent *i_ext) 710 { 711 i_ext->fofs = cpu_to_le32(ext->fofs); 712 i_ext->blk = cpu_to_le32(ext->blk); 713 i_ext->len = cpu_to_le32(ext->len); 714 } 715 716 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, 717 u32 blk, unsigned int len) 718 { 719 ei->fofs = fofs; 720 ei->blk = blk; 721 ei->len = len; 722 } 723 724 static inline bool __is_discard_mergeable(struct discard_info *back, 725 struct discard_info *front, unsigned int max_len) 726 { 727 return (back->lstart + back->len == front->lstart) && 728 (back->len + front->len <= max_len); 729 } 730 731 static inline bool __is_discard_back_mergeable(struct discard_info *cur, 732 struct discard_info *back, unsigned int max_len) 733 { 734 return __is_discard_mergeable(back, cur, max_len); 735 } 736 737 static inline bool __is_discard_front_mergeable(struct discard_info *cur, 738 struct discard_info *front, unsigned int max_len) 739 { 740 return __is_discard_mergeable(cur, front, max_len); 741 } 742 743 static inline bool __is_extent_mergeable(struct extent_info *back, 744 struct extent_info *front) 745 { 746 return (back->fofs + back->len == front->fofs && 747 back->blk + back->len == front->blk); 748 } 749 750 static inline bool __is_back_mergeable(struct extent_info *cur, 751 struct extent_info *back) 752 { 753 return __is_extent_mergeable(back, cur); 754 } 755 756 static inline bool __is_front_mergeable(struct extent_info *cur, 757 struct extent_info *front) 758 { 759 return __is_extent_mergeable(cur, front); 760 } 761 762 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync); 763 static inline void __try_update_largest_extent(struct extent_tree *et, 764 struct extent_node *en) 765 { 766 if (en->ei.len > et->largest.len) { 767 et->largest = en->ei; 768 et->largest_updated = true; 769 } 770 } 771 772 /* 773 * For free nid management 774 */ 775 enum nid_state { 776 FREE_NID, /* newly added to free nid list */ 777 PREALLOC_NID, /* it is preallocated */ 778 MAX_NID_STATE, 779 }; 780 781 struct f2fs_nm_info { 782 block_t nat_blkaddr; /* base disk address of NAT */ 783 nid_t max_nid; /* maximum possible node ids */ 784 nid_t available_nids; /* # of available node ids */ 785 nid_t next_scan_nid; /* the next nid to be scanned */ 786 unsigned int ram_thresh; /* control the memory footprint */ 787 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */ 788 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */ 789 790 /* NAT cache management */ 791 struct radix_tree_root nat_root;/* root of the nat entry cache */ 792 struct radix_tree_root nat_set_root;/* root of the nat set cache */ 793 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */ 794 struct list_head nat_entries; /* cached nat entry list (clean) */ 795 spinlock_t nat_list_lock; /* protect clean nat entry list */ 796 unsigned int nat_cnt; /* the # of cached nat entries */ 797 unsigned int dirty_nat_cnt; /* total num of nat entries in set */ 798 unsigned int nat_blocks; /* # of nat blocks */ 799 800 /* free node ids management */ 801 struct radix_tree_root free_nid_root;/* root of the free_nid cache */ 802 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */ 803 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */ 804 spinlock_t nid_list_lock; /* protect nid lists ops */ 805 struct mutex build_lock; /* lock for build free nids */ 806 unsigned char **free_nid_bitmap; 807 unsigned char *nat_block_bitmap; 808 unsigned short *free_nid_count; /* free nid count of NAT block */ 809 810 /* for checkpoint */ 811 char *nat_bitmap; /* NAT bitmap pointer */ 812 813 unsigned int nat_bits_blocks; /* # of nat bits blocks */ 814 unsigned char *nat_bits; /* NAT bits blocks */ 815 unsigned char *full_nat_bits; /* full NAT pages */ 816 unsigned char *empty_nat_bits; /* empty NAT pages */ 817 #ifdef CONFIG_F2FS_CHECK_FS 818 char *nat_bitmap_mir; /* NAT bitmap mirror */ 819 #endif 820 int bitmap_size; /* bitmap size */ 821 }; 822 823 /* 824 * this structure is used as one of function parameters. 825 * all the information are dedicated to a given direct node block determined 826 * by the data offset in a file. 827 */ 828 struct dnode_of_data { 829 struct inode *inode; /* vfs inode pointer */ 830 struct page *inode_page; /* its inode page, NULL is possible */ 831 struct page *node_page; /* cached direct node page */ 832 nid_t nid; /* node id of the direct node block */ 833 unsigned int ofs_in_node; /* data offset in the node page */ 834 bool inode_page_locked; /* inode page is locked or not */ 835 bool node_changed; /* is node block changed */ 836 char cur_level; /* level of hole node page */ 837 char max_level; /* level of current page located */ 838 block_t data_blkaddr; /* block address of the node block */ 839 }; 840 841 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode, 842 struct page *ipage, struct page *npage, nid_t nid) 843 { 844 memset(dn, 0, sizeof(*dn)); 845 dn->inode = inode; 846 dn->inode_page = ipage; 847 dn->node_page = npage; 848 dn->nid = nid; 849 } 850 851 /* 852 * For SIT manager 853 * 854 * By default, there are 6 active log areas across the whole main area. 855 * When considering hot and cold data separation to reduce cleaning overhead, 856 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types, 857 * respectively. 858 * In the current design, you should not change the numbers intentionally. 859 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6 860 * logs individually according to the underlying devices. (default: 6) 861 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for 862 * data and 8 for node logs. 863 */ 864 #define NR_CURSEG_DATA_TYPE (3) 865 #define NR_CURSEG_NODE_TYPE (3) 866 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 867 868 enum { 869 CURSEG_HOT_DATA = 0, /* directory entry blocks */ 870 CURSEG_WARM_DATA, /* data blocks */ 871 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 872 CURSEG_HOT_NODE, /* direct node blocks of directory files */ 873 CURSEG_WARM_NODE, /* direct node blocks of normal files */ 874 CURSEG_COLD_NODE, /* indirect node blocks */ 875 NO_CHECK_TYPE, 876 }; 877 878 struct flush_cmd { 879 struct completion wait; 880 struct llist_node llnode; 881 nid_t ino; 882 int ret; 883 }; 884 885 struct flush_cmd_control { 886 struct task_struct *f2fs_issue_flush; /* flush thread */ 887 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */ 888 atomic_t issued_flush; /* # of issued flushes */ 889 atomic_t queued_flush; /* # of queued flushes */ 890 struct llist_head issue_list; /* list for command issue */ 891 struct llist_node *dispatch_list; /* list for command dispatch */ 892 }; 893 894 struct f2fs_sm_info { 895 struct sit_info *sit_info; /* whole segment information */ 896 struct free_segmap_info *free_info; /* free segment information */ 897 struct dirty_seglist_info *dirty_info; /* dirty segment information */ 898 struct curseg_info *curseg_array; /* active segment information */ 899 900 struct rw_semaphore curseg_lock; /* for preventing curseg change */ 901 902 block_t seg0_blkaddr; /* block address of 0'th segment */ 903 block_t main_blkaddr; /* start block address of main area */ 904 block_t ssa_blkaddr; /* start block address of SSA area */ 905 906 unsigned int segment_count; /* total # of segments */ 907 unsigned int main_segments; /* # of segments in main area */ 908 unsigned int reserved_segments; /* # of reserved segments */ 909 unsigned int ovp_segments; /* # of overprovision segments */ 910 911 /* a threshold to reclaim prefree segments */ 912 unsigned int rec_prefree_segments; 913 914 /* for batched trimming */ 915 unsigned int trim_sections; /* # of sections to trim */ 916 917 struct list_head sit_entry_set; /* sit entry set list */ 918 919 unsigned int ipu_policy; /* in-place-update policy */ 920 unsigned int min_ipu_util; /* in-place-update threshold */ 921 unsigned int min_fsync_blocks; /* threshold for fsync */ 922 unsigned int min_seq_blocks; /* threshold for sequential blocks */ 923 unsigned int min_hot_blocks; /* threshold for hot block allocation */ 924 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ 925 926 /* for flush command control */ 927 struct flush_cmd_control *fcc_info; 928 929 /* for discard command control */ 930 struct discard_cmd_control *dcc_info; 931 }; 932 933 /* 934 * For superblock 935 */ 936 /* 937 * COUNT_TYPE for monitoring 938 * 939 * f2fs monitors the number of several block types such as on-writeback, 940 * dirty dentry blocks, dirty node blocks, and dirty meta blocks. 941 */ 942 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA) 943 enum count_type { 944 F2FS_DIRTY_DENTS, 945 F2FS_DIRTY_DATA, 946 F2FS_DIRTY_QDATA, 947 F2FS_DIRTY_NODES, 948 F2FS_DIRTY_META, 949 F2FS_INMEM_PAGES, 950 F2FS_DIRTY_IMETA, 951 F2FS_WB_CP_DATA, 952 F2FS_WB_DATA, 953 F2FS_RD_DATA, 954 F2FS_RD_NODE, 955 F2FS_RD_META, 956 F2FS_DIO_WRITE, 957 F2FS_DIO_READ, 958 NR_COUNT_TYPE, 959 }; 960 961 /* 962 * The below are the page types of bios used in submit_bio(). 963 * The available types are: 964 * DATA User data pages. It operates as async mode. 965 * NODE Node pages. It operates as async mode. 966 * META FS metadata pages such as SIT, NAT, CP. 967 * NR_PAGE_TYPE The number of page types. 968 * META_FLUSH Make sure the previous pages are written 969 * with waiting the bio's completion 970 * ... Only can be used with META. 971 */ 972 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type)) 973 enum page_type { 974 DATA, 975 NODE, 976 META, 977 NR_PAGE_TYPE, 978 META_FLUSH, 979 INMEM, /* the below types are used by tracepoints only. */ 980 INMEM_DROP, 981 INMEM_INVALIDATE, 982 INMEM_REVOKE, 983 IPU, 984 OPU, 985 }; 986 987 enum temp_type { 988 HOT = 0, /* must be zero for meta bio */ 989 WARM, 990 COLD, 991 NR_TEMP_TYPE, 992 }; 993 994 enum need_lock_type { 995 LOCK_REQ = 0, 996 LOCK_DONE, 997 LOCK_RETRY, 998 }; 999 1000 enum cp_reason_type { 1001 CP_NO_NEEDED, 1002 CP_NON_REGULAR, 1003 CP_HARDLINK, 1004 CP_SB_NEED_CP, 1005 CP_WRONG_PINO, 1006 CP_NO_SPC_ROLL, 1007 CP_NODE_NEED_CP, 1008 CP_FASTBOOT_MODE, 1009 CP_SPEC_LOG_NUM, 1010 CP_RECOVER_DIR, 1011 }; 1012 1013 enum iostat_type { 1014 APP_DIRECT_IO, /* app direct IOs */ 1015 APP_BUFFERED_IO, /* app buffered IOs */ 1016 APP_WRITE_IO, /* app write IOs */ 1017 APP_MAPPED_IO, /* app mapped IOs */ 1018 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */ 1019 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */ 1020 FS_META_IO, /* meta IOs from kworker/reclaimer */ 1021 FS_GC_DATA_IO, /* data IOs from forground gc */ 1022 FS_GC_NODE_IO, /* node IOs from forground gc */ 1023 FS_CP_DATA_IO, /* data IOs from checkpoint */ 1024 FS_CP_NODE_IO, /* node IOs from checkpoint */ 1025 FS_CP_META_IO, /* meta IOs from checkpoint */ 1026 FS_DISCARD, /* discard */ 1027 NR_IO_TYPE, 1028 }; 1029 1030 struct f2fs_io_info { 1031 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ 1032 nid_t ino; /* inode number */ 1033 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ 1034 enum temp_type temp; /* contains HOT/WARM/COLD */ 1035 int op; /* contains REQ_OP_ */ 1036 int op_flags; /* req_flag_bits */ 1037 block_t new_blkaddr; /* new block address to be written */ 1038 block_t old_blkaddr; /* old block address before Cow */ 1039 struct page *page; /* page to be written */ 1040 struct page *encrypted_page; /* encrypted page */ 1041 struct list_head list; /* serialize IOs */ 1042 bool submitted; /* indicate IO submission */ 1043 int need_lock; /* indicate we need to lock cp_rwsem */ 1044 bool in_list; /* indicate fio is in io_list */ 1045 bool is_meta; /* indicate borrow meta inode mapping or not */ 1046 bool retry; /* need to reallocate block address */ 1047 enum iostat_type io_type; /* io type */ 1048 struct writeback_control *io_wbc; /* writeback control */ 1049 unsigned char version; /* version of the node */ 1050 }; 1051 1052 #define is_read_io(rw) ((rw) == READ) 1053 struct f2fs_bio_info { 1054 struct f2fs_sb_info *sbi; /* f2fs superblock */ 1055 struct bio *bio; /* bios to merge */ 1056 sector_t last_block_in_bio; /* last block number */ 1057 struct f2fs_io_info fio; /* store buffered io info. */ 1058 struct rw_semaphore io_rwsem; /* blocking op for bio */ 1059 spinlock_t io_lock; /* serialize DATA/NODE IOs */ 1060 struct list_head io_list; /* track fios */ 1061 }; 1062 1063 #define FDEV(i) (sbi->devs[i]) 1064 #define RDEV(i) (raw_super->devs[i]) 1065 struct f2fs_dev_info { 1066 struct block_device *bdev; 1067 char path[MAX_PATH_LEN]; 1068 unsigned int total_segments; 1069 block_t start_blk; 1070 block_t end_blk; 1071 #ifdef CONFIG_BLK_DEV_ZONED 1072 unsigned int nr_blkz; /* Total number of zones */ 1073 u8 *blkz_type; /* Array of zones type */ 1074 #endif 1075 }; 1076 1077 enum inode_type { 1078 DIR_INODE, /* for dirty dir inode */ 1079 FILE_INODE, /* for dirty regular/symlink inode */ 1080 DIRTY_META, /* for all dirtied inode metadata */ 1081 ATOMIC_FILE, /* for all atomic files */ 1082 NR_INODE_TYPE, 1083 }; 1084 1085 /* for inner inode cache management */ 1086 struct inode_management { 1087 struct radix_tree_root ino_root; /* ino entry array */ 1088 spinlock_t ino_lock; /* for ino entry lock */ 1089 struct list_head ino_list; /* inode list head */ 1090 unsigned long ino_num; /* number of entries */ 1091 }; 1092 1093 /* For s_flag in struct f2fs_sb_info */ 1094 enum { 1095 SBI_IS_DIRTY, /* dirty flag for checkpoint */ 1096 SBI_IS_CLOSE, /* specify unmounting */ 1097 SBI_NEED_FSCK, /* need fsck.f2fs to fix */ 1098 SBI_POR_DOING, /* recovery is doing or not */ 1099 SBI_NEED_SB_WRITE, /* need to recover superblock */ 1100 SBI_NEED_CP, /* need to checkpoint */ 1101 SBI_IS_SHUTDOWN, /* shutdown by ioctl */ 1102 SBI_IS_RECOVERED, /* recovered orphan/data */ 1103 SBI_CP_DISABLED, /* CP was disabled last mount */ 1104 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */ 1105 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */ 1106 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */ 1107 }; 1108 1109 enum { 1110 CP_TIME, 1111 REQ_TIME, 1112 DISCARD_TIME, 1113 GC_TIME, 1114 DISABLE_TIME, 1115 UMOUNT_DISCARD_TIMEOUT, 1116 MAX_TIME, 1117 }; 1118 1119 enum { 1120 GC_NORMAL, 1121 GC_IDLE_CB, 1122 GC_IDLE_GREEDY, 1123 GC_URGENT, 1124 }; 1125 1126 enum { 1127 WHINT_MODE_OFF, /* not pass down write hints */ 1128 WHINT_MODE_USER, /* try to pass down hints given by users */ 1129 WHINT_MODE_FS, /* pass down hints with F2FS policy */ 1130 }; 1131 1132 enum { 1133 ALLOC_MODE_DEFAULT, /* stay default */ 1134 ALLOC_MODE_REUSE, /* reuse segments as much as possible */ 1135 }; 1136 1137 enum fsync_mode { 1138 FSYNC_MODE_POSIX, /* fsync follows posix semantics */ 1139 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */ 1140 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */ 1141 }; 1142 1143 #ifdef CONFIG_F2FS_FS_ENCRYPTION 1144 #define DUMMY_ENCRYPTION_ENABLED(sbi) \ 1145 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption)) 1146 #else 1147 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0) 1148 #endif 1149 1150 struct f2fs_sb_info { 1151 struct super_block *sb; /* pointer to VFS super block */ 1152 struct proc_dir_entry *s_proc; /* proc entry */ 1153 struct f2fs_super_block *raw_super; /* raw super block pointer */ 1154 struct rw_semaphore sb_lock; /* lock for raw super block */ 1155 int valid_super_block; /* valid super block no */ 1156 unsigned long s_flag; /* flags for sbi */ 1157 struct mutex writepages; /* mutex for writepages() */ 1158 1159 #ifdef CONFIG_BLK_DEV_ZONED 1160 unsigned int blocks_per_blkz; /* F2FS blocks per zone */ 1161 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */ 1162 #endif 1163 1164 /* for node-related operations */ 1165 struct f2fs_nm_info *nm_info; /* node manager */ 1166 struct inode *node_inode; /* cache node blocks */ 1167 1168 /* for segment-related operations */ 1169 struct f2fs_sm_info *sm_info; /* segment manager */ 1170 1171 /* for bio operations */ 1172 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ 1173 /* keep migration IO order for LFS mode */ 1174 struct rw_semaphore io_order_lock; 1175 mempool_t *write_io_dummy; /* Dummy pages */ 1176 1177 /* for checkpoint */ 1178 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ 1179 int cur_cp_pack; /* remain current cp pack */ 1180 spinlock_t cp_lock; /* for flag in ckpt */ 1181 struct inode *meta_inode; /* cache meta blocks */ 1182 struct mutex cp_mutex; /* checkpoint procedure lock */ 1183 struct rw_semaphore cp_rwsem; /* blocking FS operations */ 1184 struct rw_semaphore node_write; /* locking node writes */ 1185 struct rw_semaphore node_change; /* locking node change */ 1186 wait_queue_head_t cp_wait; 1187 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ 1188 long interval_time[MAX_TIME]; /* to store thresholds */ 1189 1190 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ 1191 1192 spinlock_t fsync_node_lock; /* for node entry lock */ 1193 struct list_head fsync_node_list; /* node list head */ 1194 unsigned int fsync_seg_id; /* sequence id */ 1195 unsigned int fsync_node_num; /* number of node entries */ 1196 1197 /* for orphan inode, use 0'th array */ 1198 unsigned int max_orphans; /* max orphan inodes */ 1199 1200 /* for inode management */ 1201 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */ 1202 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */ 1203 1204 /* for extent tree cache */ 1205 struct radix_tree_root extent_tree_root;/* cache extent cache entries */ 1206 struct mutex extent_tree_lock; /* locking extent radix tree */ 1207 struct list_head extent_list; /* lru list for shrinker */ 1208 spinlock_t extent_lock; /* locking extent lru list */ 1209 atomic_t total_ext_tree; /* extent tree count */ 1210 struct list_head zombie_list; /* extent zombie tree list */ 1211 atomic_t total_zombie_tree; /* extent zombie tree count */ 1212 atomic_t total_ext_node; /* extent info count */ 1213 1214 /* basic filesystem units */ 1215 unsigned int log_sectors_per_block; /* log2 sectors per block */ 1216 unsigned int log_blocksize; /* log2 block size */ 1217 unsigned int blocksize; /* block size */ 1218 unsigned int root_ino_num; /* root inode number*/ 1219 unsigned int node_ino_num; /* node inode number*/ 1220 unsigned int meta_ino_num; /* meta inode number*/ 1221 unsigned int log_blocks_per_seg; /* log2 blocks per segment */ 1222 unsigned int blocks_per_seg; /* blocks per segment */ 1223 unsigned int segs_per_sec; /* segments per section */ 1224 unsigned int secs_per_zone; /* sections per zone */ 1225 unsigned int total_sections; /* total section count */ 1226 unsigned int total_node_count; /* total node block count */ 1227 unsigned int total_valid_node_count; /* valid node block count */ 1228 loff_t max_file_blocks; /* max block index of file */ 1229 int dir_level; /* directory level */ 1230 int readdir_ra; /* readahead inode in readdir */ 1231 1232 block_t user_block_count; /* # of user blocks */ 1233 block_t total_valid_block_count; /* # of valid blocks */ 1234 block_t discard_blks; /* discard command candidats */ 1235 block_t last_valid_block_count; /* for recovery */ 1236 block_t reserved_blocks; /* configurable reserved blocks */ 1237 block_t current_reserved_blocks; /* current reserved blocks */ 1238 1239 /* Additional tracking for no checkpoint mode */ 1240 block_t unusable_block_count; /* # of blocks saved by last cp */ 1241 1242 unsigned int nquota_files; /* # of quota sysfile */ 1243 1244 u32 s_next_generation; /* for NFS support */ 1245 1246 /* # of pages, see count_type */ 1247 atomic_t nr_pages[NR_COUNT_TYPE]; 1248 /* # of allocated blocks */ 1249 struct percpu_counter alloc_valid_block_count; 1250 1251 /* writeback control */ 1252 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */ 1253 1254 /* valid inode count */ 1255 struct percpu_counter total_valid_inode_count; 1256 1257 struct f2fs_mount_info mount_opt; /* mount options */ 1258 1259 /* for cleaning operations */ 1260 struct mutex gc_mutex; /* mutex for GC */ 1261 struct f2fs_gc_kthread *gc_thread; /* GC thread */ 1262 unsigned int cur_victim_sec; /* current victim section num */ 1263 unsigned int gc_mode; /* current GC state */ 1264 unsigned int next_victim_seg[2]; /* next segment in victim section */ 1265 /* for skip statistic */ 1266 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */ 1267 unsigned long long skipped_gc_rwsem; /* FG_GC only */ 1268 1269 /* threshold for gc trials on pinned files */ 1270 u64 gc_pin_file_threshold; 1271 1272 /* maximum # of trials to find a victim segment for SSR and GC */ 1273 unsigned int max_victim_search; 1274 /* migration granularity of garbage collection, unit: segment */ 1275 unsigned int migration_granularity; 1276 1277 /* 1278 * for stat information. 1279 * one is for the LFS mode, and the other is for the SSR mode. 1280 */ 1281 #ifdef CONFIG_F2FS_STAT_FS 1282 struct f2fs_stat_info *stat_info; /* FS status information */ 1283 atomic_t meta_count[META_MAX]; /* # of meta blocks */ 1284 unsigned int segment_count[2]; /* # of allocated segments */ 1285 unsigned int block_count[2]; /* # of allocated blocks */ 1286 atomic_t inplace_count; /* # of inplace update */ 1287 atomic64_t total_hit_ext; /* # of lookup extent cache */ 1288 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */ 1289 atomic64_t read_hit_largest; /* # of hit largest extent node */ 1290 atomic64_t read_hit_cached; /* # of hit cached extent node */ 1291 atomic_t inline_xattr; /* # of inline_xattr inodes */ 1292 atomic_t inline_inode; /* # of inline_data inodes */ 1293 atomic_t inline_dir; /* # of inline_dentry inodes */ 1294 atomic_t aw_cnt; /* # of atomic writes */ 1295 atomic_t vw_cnt; /* # of volatile writes */ 1296 atomic_t max_aw_cnt; /* max # of atomic writes */ 1297 atomic_t max_vw_cnt; /* max # of volatile writes */ 1298 int bg_gc; /* background gc calls */ 1299 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */ 1300 unsigned int other_skip_bggc; /* skip background gc for other reasons */ 1301 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */ 1302 #endif 1303 spinlock_t stat_lock; /* lock for stat operations */ 1304 1305 /* For app/fs IO statistics */ 1306 spinlock_t iostat_lock; 1307 unsigned long long write_iostat[NR_IO_TYPE]; 1308 bool iostat_enable; 1309 1310 /* For sysfs suppport */ 1311 struct kobject s_kobj; 1312 struct completion s_kobj_unregister; 1313 1314 /* For shrinker support */ 1315 struct list_head s_list; 1316 int s_ndevs; /* number of devices */ 1317 struct f2fs_dev_info *devs; /* for device list */ 1318 unsigned int dirty_device; /* for checkpoint data flush */ 1319 spinlock_t dev_lock; /* protect dirty_device */ 1320 struct mutex umount_mutex; 1321 unsigned int shrinker_run_no; 1322 1323 /* For write statistics */ 1324 u64 sectors_written_start; 1325 u64 kbytes_written; 1326 1327 /* Reference to checksum algorithm driver via cryptoapi */ 1328 struct crypto_shash *s_chksum_driver; 1329 1330 /* Precomputed FS UUID checksum for seeding other checksums */ 1331 __u32 s_chksum_seed; 1332 }; 1333 1334 struct f2fs_private_dio { 1335 struct inode *inode; 1336 void *orig_private; 1337 bio_end_io_t *orig_end_io; 1338 bool write; 1339 }; 1340 1341 #ifdef CONFIG_F2FS_FAULT_INJECTION 1342 #define f2fs_show_injection_info(type) \ 1343 printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \ 1344 KERN_INFO, f2fs_fault_name[type], \ 1345 __func__, __builtin_return_address(0)) 1346 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1347 { 1348 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; 1349 1350 if (!ffi->inject_rate) 1351 return false; 1352 1353 if (!IS_FAULT_SET(ffi, type)) 1354 return false; 1355 1356 atomic_inc(&ffi->inject_ops); 1357 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) { 1358 atomic_set(&ffi->inject_ops, 0); 1359 return true; 1360 } 1361 return false; 1362 } 1363 #else 1364 #define f2fs_show_injection_info(type) do { } while (0) 1365 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) 1366 { 1367 return false; 1368 } 1369 #endif 1370 1371 /* For write statistics. Suppose sector size is 512 bytes, 1372 * and the return value is in kbytes. s is of struct f2fs_sb_info. 1373 */ 1374 #define BD_PART_WRITTEN(s) \ 1375 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[STAT_WRITE]) - \ 1376 (s)->sectors_written_start) >> 1) 1377 1378 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type) 1379 { 1380 unsigned long now = jiffies; 1381 1382 sbi->last_time[type] = now; 1383 1384 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */ 1385 if (type == REQ_TIME) { 1386 sbi->last_time[DISCARD_TIME] = now; 1387 sbi->last_time[GC_TIME] = now; 1388 } 1389 } 1390 1391 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type) 1392 { 1393 unsigned long interval = sbi->interval_time[type] * HZ; 1394 1395 return time_after(jiffies, sbi->last_time[type] + interval); 1396 } 1397 1398 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi, 1399 int type) 1400 { 1401 unsigned long interval = sbi->interval_time[type] * HZ; 1402 unsigned int wait_ms = 0; 1403 long delta; 1404 1405 delta = (sbi->last_time[type] + interval) - jiffies; 1406 if (delta > 0) 1407 wait_ms = jiffies_to_msecs(delta); 1408 1409 return wait_ms; 1410 } 1411 1412 /* 1413 * Inline functions 1414 */ 1415 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc, 1416 const void *address, unsigned int length) 1417 { 1418 struct { 1419 struct shash_desc shash; 1420 char ctx[4]; 1421 } desc; 1422 int err; 1423 1424 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx)); 1425 1426 desc.shash.tfm = sbi->s_chksum_driver; 1427 desc.shash.flags = 0; 1428 *(u32 *)desc.ctx = crc; 1429 1430 err = crypto_shash_update(&desc.shash, address, length); 1431 BUG_ON(err); 1432 1433 return *(u32 *)desc.ctx; 1434 } 1435 1436 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address, 1437 unsigned int length) 1438 { 1439 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length); 1440 } 1441 1442 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc, 1443 void *buf, size_t buf_size) 1444 { 1445 return f2fs_crc32(sbi, buf, buf_size) == blk_crc; 1446 } 1447 1448 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc, 1449 const void *address, unsigned int length) 1450 { 1451 return __f2fs_crc32(sbi, crc, address, length); 1452 } 1453 1454 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode) 1455 { 1456 return container_of(inode, struct f2fs_inode_info, vfs_inode); 1457 } 1458 1459 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb) 1460 { 1461 return sb->s_fs_info; 1462 } 1463 1464 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode) 1465 { 1466 return F2FS_SB(inode->i_sb); 1467 } 1468 1469 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping) 1470 { 1471 return F2FS_I_SB(mapping->host); 1472 } 1473 1474 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page) 1475 { 1476 return F2FS_M_SB(page->mapping); 1477 } 1478 1479 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi) 1480 { 1481 return (struct f2fs_super_block *)(sbi->raw_super); 1482 } 1483 1484 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi) 1485 { 1486 return (struct f2fs_checkpoint *)(sbi->ckpt); 1487 } 1488 1489 static inline struct f2fs_node *F2FS_NODE(struct page *page) 1490 { 1491 return (struct f2fs_node *)page_address(page); 1492 } 1493 1494 static inline struct f2fs_inode *F2FS_INODE(struct page *page) 1495 { 1496 return &((struct f2fs_node *)page_address(page))->i; 1497 } 1498 1499 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi) 1500 { 1501 return (struct f2fs_nm_info *)(sbi->nm_info); 1502 } 1503 1504 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi) 1505 { 1506 return (struct f2fs_sm_info *)(sbi->sm_info); 1507 } 1508 1509 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi) 1510 { 1511 return (struct sit_info *)(SM_I(sbi)->sit_info); 1512 } 1513 1514 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi) 1515 { 1516 return (struct free_segmap_info *)(SM_I(sbi)->free_info); 1517 } 1518 1519 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi) 1520 { 1521 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info); 1522 } 1523 1524 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi) 1525 { 1526 return sbi->meta_inode->i_mapping; 1527 } 1528 1529 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi) 1530 { 1531 return sbi->node_inode->i_mapping; 1532 } 1533 1534 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type) 1535 { 1536 return test_bit(type, &sbi->s_flag); 1537 } 1538 1539 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1540 { 1541 set_bit(type, &sbi->s_flag); 1542 } 1543 1544 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type) 1545 { 1546 clear_bit(type, &sbi->s_flag); 1547 } 1548 1549 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp) 1550 { 1551 return le64_to_cpu(cp->checkpoint_ver); 1552 } 1553 1554 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type) 1555 { 1556 if (type < F2FS_MAX_QUOTAS) 1557 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]); 1558 return 0; 1559 } 1560 1561 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp) 1562 { 1563 size_t crc_offset = le32_to_cpu(cp->checksum_offset); 1564 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset))); 1565 } 1566 1567 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1568 { 1569 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1570 1571 return ckpt_flags & f; 1572 } 1573 1574 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1575 { 1576 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f); 1577 } 1578 1579 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1580 { 1581 unsigned int ckpt_flags; 1582 1583 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1584 ckpt_flags |= f; 1585 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1586 } 1587 1588 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1589 { 1590 unsigned long flags; 1591 1592 spin_lock_irqsave(&sbi->cp_lock, flags); 1593 __set_ckpt_flags(F2FS_CKPT(sbi), f); 1594 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1595 } 1596 1597 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f) 1598 { 1599 unsigned int ckpt_flags; 1600 1601 ckpt_flags = le32_to_cpu(cp->ckpt_flags); 1602 ckpt_flags &= (~f); 1603 cp->ckpt_flags = cpu_to_le32(ckpt_flags); 1604 } 1605 1606 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) 1607 { 1608 unsigned long flags; 1609 1610 spin_lock_irqsave(&sbi->cp_lock, flags); 1611 __clear_ckpt_flags(F2FS_CKPT(sbi), f); 1612 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1613 } 1614 1615 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) 1616 { 1617 unsigned long flags; 1618 1619 /* 1620 * In order to re-enable nat_bits we need to call fsck.f2fs by 1621 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost, 1622 * so let's rely on regular fsck or unclean shutdown. 1623 */ 1624 1625 if (lock) 1626 spin_lock_irqsave(&sbi->cp_lock, flags); 1627 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); 1628 kvfree(NM_I(sbi)->nat_bits); 1629 NM_I(sbi)->nat_bits = NULL; 1630 if (lock) 1631 spin_unlock_irqrestore(&sbi->cp_lock, flags); 1632 } 1633 1634 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi, 1635 struct cp_control *cpc) 1636 { 1637 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG); 1638 1639 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set; 1640 } 1641 1642 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi) 1643 { 1644 down_read(&sbi->cp_rwsem); 1645 } 1646 1647 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi) 1648 { 1649 return down_read_trylock(&sbi->cp_rwsem); 1650 } 1651 1652 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi) 1653 { 1654 up_read(&sbi->cp_rwsem); 1655 } 1656 1657 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi) 1658 { 1659 down_write(&sbi->cp_rwsem); 1660 } 1661 1662 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) 1663 { 1664 up_write(&sbi->cp_rwsem); 1665 } 1666 1667 static inline int __get_cp_reason(struct f2fs_sb_info *sbi) 1668 { 1669 int reason = CP_SYNC; 1670 1671 if (test_opt(sbi, FASTBOOT)) 1672 reason = CP_FASTBOOT; 1673 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE)) 1674 reason = CP_UMOUNT; 1675 return reason; 1676 } 1677 1678 static inline bool __remain_node_summaries(int reason) 1679 { 1680 return (reason & (CP_UMOUNT | CP_FASTBOOT)); 1681 } 1682 1683 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi) 1684 { 1685 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) || 1686 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG)); 1687 } 1688 1689 /* 1690 * Check whether the inode has blocks or not 1691 */ 1692 static inline int F2FS_HAS_BLOCKS(struct inode *inode) 1693 { 1694 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0; 1695 1696 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block; 1697 } 1698 1699 static inline bool f2fs_has_xattr_block(unsigned int ofs) 1700 { 1701 return ofs == XATTR_NODE_OFFSET; 1702 } 1703 1704 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi, 1705 struct inode *inode, bool cap) 1706 { 1707 if (!inode) 1708 return true; 1709 if (!test_opt(sbi, RESERVE_ROOT)) 1710 return false; 1711 if (IS_NOQUOTA(inode)) 1712 return true; 1713 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid())) 1714 return true; 1715 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) && 1716 in_group_p(F2FS_OPTION(sbi).s_resgid)) 1717 return true; 1718 if (cap && capable(CAP_SYS_RESOURCE)) 1719 return true; 1720 return false; 1721 } 1722 1723 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool); 1724 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, 1725 struct inode *inode, blkcnt_t *count) 1726 { 1727 blkcnt_t diff = 0, release = 0; 1728 block_t avail_user_block_count; 1729 int ret; 1730 1731 ret = dquot_reserve_block(inode, *count); 1732 if (ret) 1733 return ret; 1734 1735 if (time_to_inject(sbi, FAULT_BLOCK)) { 1736 f2fs_show_injection_info(FAULT_BLOCK); 1737 release = *count; 1738 goto enospc; 1739 } 1740 1741 /* 1742 * let's increase this in prior to actual block count change in order 1743 * for f2fs_sync_file to avoid data races when deciding checkpoint. 1744 */ 1745 percpu_counter_add(&sbi->alloc_valid_block_count, (*count)); 1746 1747 spin_lock(&sbi->stat_lock); 1748 sbi->total_valid_block_count += (block_t)(*count); 1749 avail_user_block_count = sbi->user_block_count - 1750 sbi->current_reserved_blocks; 1751 1752 if (!__allow_reserved_blocks(sbi, inode, true)) 1753 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks; 1754 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1755 avail_user_block_count -= sbi->unusable_block_count; 1756 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { 1757 diff = sbi->total_valid_block_count - avail_user_block_count; 1758 if (diff > *count) 1759 diff = *count; 1760 *count -= diff; 1761 release = diff; 1762 sbi->total_valid_block_count -= diff; 1763 if (!*count) { 1764 spin_unlock(&sbi->stat_lock); 1765 goto enospc; 1766 } 1767 } 1768 spin_unlock(&sbi->stat_lock); 1769 1770 if (unlikely(release)) { 1771 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1772 dquot_release_reservation_block(inode, release); 1773 } 1774 f2fs_i_blocks_write(inode, *count, true, true); 1775 return 0; 1776 1777 enospc: 1778 percpu_counter_sub(&sbi->alloc_valid_block_count, release); 1779 dquot_release_reservation_block(inode, release); 1780 return -ENOSPC; 1781 } 1782 1783 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, 1784 struct inode *inode, 1785 block_t count) 1786 { 1787 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK; 1788 1789 spin_lock(&sbi->stat_lock); 1790 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); 1791 f2fs_bug_on(sbi, inode->i_blocks < sectors); 1792 sbi->total_valid_block_count -= (block_t)count; 1793 if (sbi->reserved_blocks && 1794 sbi->current_reserved_blocks < sbi->reserved_blocks) 1795 sbi->current_reserved_blocks = min(sbi->reserved_blocks, 1796 sbi->current_reserved_blocks + count); 1797 spin_unlock(&sbi->stat_lock); 1798 f2fs_i_blocks_write(inode, count, false, true); 1799 } 1800 1801 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type) 1802 { 1803 atomic_inc(&sbi->nr_pages[count_type]); 1804 1805 if (count_type == F2FS_DIRTY_DENTS || 1806 count_type == F2FS_DIRTY_NODES || 1807 count_type == F2FS_DIRTY_META || 1808 count_type == F2FS_DIRTY_QDATA || 1809 count_type == F2FS_DIRTY_IMETA) 1810 set_sbi_flag(sbi, SBI_IS_DIRTY); 1811 } 1812 1813 static inline void inode_inc_dirty_pages(struct inode *inode) 1814 { 1815 atomic_inc(&F2FS_I(inode)->dirty_pages); 1816 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1817 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1818 if (IS_NOQUOTA(inode)) 1819 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1820 } 1821 1822 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type) 1823 { 1824 atomic_dec(&sbi->nr_pages[count_type]); 1825 } 1826 1827 static inline void inode_dec_dirty_pages(struct inode *inode) 1828 { 1829 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) && 1830 !S_ISLNK(inode->i_mode)) 1831 return; 1832 1833 atomic_dec(&F2FS_I(inode)->dirty_pages); 1834 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ? 1835 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA); 1836 if (IS_NOQUOTA(inode)) 1837 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA); 1838 } 1839 1840 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type) 1841 { 1842 return atomic_read(&sbi->nr_pages[count_type]); 1843 } 1844 1845 static inline int get_dirty_pages(struct inode *inode) 1846 { 1847 return atomic_read(&F2FS_I(inode)->dirty_pages); 1848 } 1849 1850 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type) 1851 { 1852 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; 1853 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >> 1854 sbi->log_blocks_per_seg; 1855 1856 return segs / sbi->segs_per_sec; 1857 } 1858 1859 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi) 1860 { 1861 return sbi->total_valid_block_count; 1862 } 1863 1864 static inline block_t discard_blocks(struct f2fs_sb_info *sbi) 1865 { 1866 return sbi->discard_blks; 1867 } 1868 1869 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag) 1870 { 1871 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1872 1873 /* return NAT or SIT bitmap */ 1874 if (flag == NAT_BITMAP) 1875 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); 1876 else if (flag == SIT_BITMAP) 1877 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); 1878 1879 return 0; 1880 } 1881 1882 static inline block_t __cp_payload(struct f2fs_sb_info *sbi) 1883 { 1884 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload); 1885 } 1886 1887 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag) 1888 { 1889 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); 1890 int offset; 1891 1892 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) { 1893 offset = (flag == SIT_BITMAP) ? 1894 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0; 1895 return &ckpt->sit_nat_version_bitmap + offset; 1896 } 1897 1898 if (__cp_payload(sbi) > 0) { 1899 if (flag == NAT_BITMAP) 1900 return &ckpt->sit_nat_version_bitmap; 1901 else 1902 return (unsigned char *)ckpt + F2FS_BLKSIZE; 1903 } else { 1904 offset = (flag == NAT_BITMAP) ? 1905 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0; 1906 return &ckpt->sit_nat_version_bitmap + offset; 1907 } 1908 } 1909 1910 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi) 1911 { 1912 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1913 1914 if (sbi->cur_cp_pack == 2) 1915 start_addr += sbi->blocks_per_seg; 1916 return start_addr; 1917 } 1918 1919 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi) 1920 { 1921 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr); 1922 1923 if (sbi->cur_cp_pack == 1) 1924 start_addr += sbi->blocks_per_seg; 1925 return start_addr; 1926 } 1927 1928 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi) 1929 { 1930 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1; 1931 } 1932 1933 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi) 1934 { 1935 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum); 1936 } 1937 1938 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, 1939 struct inode *inode, bool is_inode) 1940 { 1941 block_t valid_block_count; 1942 unsigned int valid_node_count; 1943 int err; 1944 1945 if (is_inode) { 1946 if (inode) { 1947 err = dquot_alloc_inode(inode); 1948 if (err) 1949 return err; 1950 } 1951 } else { 1952 err = dquot_reserve_block(inode, 1); 1953 if (err) 1954 return err; 1955 } 1956 1957 if (time_to_inject(sbi, FAULT_BLOCK)) { 1958 f2fs_show_injection_info(FAULT_BLOCK); 1959 goto enospc; 1960 } 1961 1962 spin_lock(&sbi->stat_lock); 1963 1964 valid_block_count = sbi->total_valid_block_count + 1965 sbi->current_reserved_blocks + 1; 1966 1967 if (!__allow_reserved_blocks(sbi, inode, false)) 1968 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks; 1969 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) 1970 valid_block_count += sbi->unusable_block_count; 1971 1972 if (unlikely(valid_block_count > sbi->user_block_count)) { 1973 spin_unlock(&sbi->stat_lock); 1974 goto enospc; 1975 } 1976 1977 valid_node_count = sbi->total_valid_node_count + 1; 1978 if (unlikely(valid_node_count > sbi->total_node_count)) { 1979 spin_unlock(&sbi->stat_lock); 1980 goto enospc; 1981 } 1982 1983 sbi->total_valid_node_count++; 1984 sbi->total_valid_block_count++; 1985 spin_unlock(&sbi->stat_lock); 1986 1987 if (inode) { 1988 if (is_inode) 1989 f2fs_mark_inode_dirty_sync(inode, true); 1990 else 1991 f2fs_i_blocks_write(inode, 1, true, true); 1992 } 1993 1994 percpu_counter_inc(&sbi->alloc_valid_block_count); 1995 return 0; 1996 1997 enospc: 1998 if (is_inode) { 1999 if (inode) 2000 dquot_free_inode(inode); 2001 } else { 2002 dquot_release_reservation_block(inode, 1); 2003 } 2004 return -ENOSPC; 2005 } 2006 2007 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, 2008 struct inode *inode, bool is_inode) 2009 { 2010 spin_lock(&sbi->stat_lock); 2011 2012 f2fs_bug_on(sbi, !sbi->total_valid_block_count); 2013 f2fs_bug_on(sbi, !sbi->total_valid_node_count); 2014 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks); 2015 2016 sbi->total_valid_node_count--; 2017 sbi->total_valid_block_count--; 2018 if (sbi->reserved_blocks && 2019 sbi->current_reserved_blocks < sbi->reserved_blocks) 2020 sbi->current_reserved_blocks++; 2021 2022 spin_unlock(&sbi->stat_lock); 2023 2024 if (is_inode) 2025 dquot_free_inode(inode); 2026 else 2027 f2fs_i_blocks_write(inode, 1, false, true); 2028 } 2029 2030 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi) 2031 { 2032 return sbi->total_valid_node_count; 2033 } 2034 2035 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi) 2036 { 2037 percpu_counter_inc(&sbi->total_valid_inode_count); 2038 } 2039 2040 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi) 2041 { 2042 percpu_counter_dec(&sbi->total_valid_inode_count); 2043 } 2044 2045 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi) 2046 { 2047 return percpu_counter_sum_positive(&sbi->total_valid_inode_count); 2048 } 2049 2050 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping, 2051 pgoff_t index, bool for_write) 2052 { 2053 struct page *page; 2054 2055 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) { 2056 if (!for_write) 2057 page = find_get_page_flags(mapping, index, 2058 FGP_LOCK | FGP_ACCESSED); 2059 else 2060 page = find_lock_page(mapping, index); 2061 if (page) 2062 return page; 2063 2064 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) { 2065 f2fs_show_injection_info(FAULT_PAGE_ALLOC); 2066 return NULL; 2067 } 2068 } 2069 2070 if (!for_write) 2071 return grab_cache_page(mapping, index); 2072 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS); 2073 } 2074 2075 static inline struct page *f2fs_pagecache_get_page( 2076 struct address_space *mapping, pgoff_t index, 2077 int fgp_flags, gfp_t gfp_mask) 2078 { 2079 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) { 2080 f2fs_show_injection_info(FAULT_PAGE_GET); 2081 return NULL; 2082 } 2083 2084 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask); 2085 } 2086 2087 static inline void f2fs_copy_page(struct page *src, struct page *dst) 2088 { 2089 char *src_kaddr = kmap(src); 2090 char *dst_kaddr = kmap(dst); 2091 2092 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); 2093 kunmap(dst); 2094 kunmap(src); 2095 } 2096 2097 static inline void f2fs_put_page(struct page *page, int unlock) 2098 { 2099 if (!page) 2100 return; 2101 2102 if (unlock) { 2103 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page)); 2104 unlock_page(page); 2105 } 2106 put_page(page); 2107 } 2108 2109 static inline void f2fs_put_dnode(struct dnode_of_data *dn) 2110 { 2111 if (dn->node_page) 2112 f2fs_put_page(dn->node_page, 1); 2113 if (dn->inode_page && dn->node_page != dn->inode_page) 2114 f2fs_put_page(dn->inode_page, 0); 2115 dn->node_page = NULL; 2116 dn->inode_page = NULL; 2117 } 2118 2119 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name, 2120 size_t size) 2121 { 2122 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL); 2123 } 2124 2125 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep, 2126 gfp_t flags) 2127 { 2128 void *entry; 2129 2130 entry = kmem_cache_alloc(cachep, flags); 2131 if (!entry) 2132 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL); 2133 return entry; 2134 } 2135 2136 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, 2137 int npages, bool no_fail) 2138 { 2139 struct bio *bio; 2140 2141 if (no_fail) { 2142 /* No failure on bio allocation */ 2143 bio = bio_alloc(GFP_NOIO, npages); 2144 if (!bio) 2145 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages); 2146 return bio; 2147 } 2148 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) { 2149 f2fs_show_injection_info(FAULT_ALLOC_BIO); 2150 return NULL; 2151 } 2152 2153 return bio_alloc(GFP_KERNEL, npages); 2154 } 2155 2156 static inline bool is_idle(struct f2fs_sb_info *sbi, int type) 2157 { 2158 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) || 2159 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) || 2160 get_pages(sbi, F2FS_WB_CP_DATA) || 2161 get_pages(sbi, F2FS_DIO_READ) || 2162 get_pages(sbi, F2FS_DIO_WRITE) || 2163 atomic_read(&SM_I(sbi)->dcc_info->queued_discard) || 2164 atomic_read(&SM_I(sbi)->fcc_info->queued_flush)) 2165 return false; 2166 return f2fs_time_over(sbi, type); 2167 } 2168 2169 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root, 2170 unsigned long index, void *item) 2171 { 2172 while (radix_tree_insert(root, index, item)) 2173 cond_resched(); 2174 } 2175 2176 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino) 2177 2178 static inline bool IS_INODE(struct page *page) 2179 { 2180 struct f2fs_node *p = F2FS_NODE(page); 2181 2182 return RAW_IS_INODE(p); 2183 } 2184 2185 static inline int offset_in_addr(struct f2fs_inode *i) 2186 { 2187 return (i->i_inline & F2FS_EXTRA_ATTR) ? 2188 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0; 2189 } 2190 2191 static inline __le32 *blkaddr_in_node(struct f2fs_node *node) 2192 { 2193 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr; 2194 } 2195 2196 static inline int f2fs_has_extra_attr(struct inode *inode); 2197 static inline block_t datablock_addr(struct inode *inode, 2198 struct page *node_page, unsigned int offset) 2199 { 2200 struct f2fs_node *raw_node; 2201 __le32 *addr_array; 2202 int base = 0; 2203 bool is_inode = IS_INODE(node_page); 2204 2205 raw_node = F2FS_NODE(node_page); 2206 2207 /* from GC path only */ 2208 if (is_inode) { 2209 if (!inode) 2210 base = offset_in_addr(&raw_node->i); 2211 else if (f2fs_has_extra_attr(inode)) 2212 base = get_extra_isize(inode); 2213 } 2214 2215 addr_array = blkaddr_in_node(raw_node); 2216 return le32_to_cpu(addr_array[base + offset]); 2217 } 2218 2219 static inline int f2fs_test_bit(unsigned int nr, char *addr) 2220 { 2221 int mask; 2222 2223 addr += (nr >> 3); 2224 mask = 1 << (7 - (nr & 0x07)); 2225 return mask & *addr; 2226 } 2227 2228 static inline void f2fs_set_bit(unsigned int nr, char *addr) 2229 { 2230 int mask; 2231 2232 addr += (nr >> 3); 2233 mask = 1 << (7 - (nr & 0x07)); 2234 *addr |= mask; 2235 } 2236 2237 static inline void f2fs_clear_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 int f2fs_test_and_set_bit(unsigned int nr, char *addr) 2247 { 2248 int mask; 2249 int ret; 2250 2251 addr += (nr >> 3); 2252 mask = 1 << (7 - (nr & 0x07)); 2253 ret = mask & *addr; 2254 *addr |= mask; 2255 return ret; 2256 } 2257 2258 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr) 2259 { 2260 int mask; 2261 int ret; 2262 2263 addr += (nr >> 3); 2264 mask = 1 << (7 - (nr & 0x07)); 2265 ret = mask & *addr; 2266 *addr &= ~mask; 2267 return ret; 2268 } 2269 2270 static inline void f2fs_change_bit(unsigned int nr, char *addr) 2271 { 2272 int mask; 2273 2274 addr += (nr >> 3); 2275 mask = 1 << (7 - (nr & 0x07)); 2276 *addr ^= mask; 2277 } 2278 2279 /* 2280 * Inode flags 2281 */ 2282 #define F2FS_SECRM_FL 0x00000001 /* Secure deletion */ 2283 #define F2FS_UNRM_FL 0x00000002 /* Undelete */ 2284 #define F2FS_COMPR_FL 0x00000004 /* Compress file */ 2285 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */ 2286 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */ 2287 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */ 2288 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */ 2289 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */ 2290 /* Reserved for compression usage... */ 2291 #define F2FS_DIRTY_FL 0x00000100 2292 #define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */ 2293 #define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */ 2294 #define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */ 2295 /* End compression flags --- maybe not all used */ 2296 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */ 2297 #define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */ 2298 #define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */ 2299 #define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */ 2300 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ 2301 #define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ 2302 #define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */ 2303 #define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */ 2304 #define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */ 2305 #define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */ 2306 #define F2FS_NOCOW_FL 0x00800000 /* Do not cow file */ 2307 #define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */ 2308 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */ 2309 #define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */ 2310 2311 #define F2FS_FL_USER_VISIBLE 0x30CBDFFF /* User visible flags */ 2312 #define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */ 2313 2314 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */ 2315 #define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \ 2316 F2FS_IMMUTABLE_FL | \ 2317 F2FS_APPEND_FL | \ 2318 F2FS_NODUMP_FL | \ 2319 F2FS_NOATIME_FL | \ 2320 F2FS_PROJINHERIT_FL) 2321 2322 /* Flags that should be inherited by new inodes from their parent. */ 2323 #define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\ 2324 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\ 2325 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\ 2326 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\ 2327 F2FS_PROJINHERIT_FL) 2328 2329 /* Flags that are appropriate for regular files (all but dir-specific ones). */ 2330 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL)) 2331 2332 /* Flags that are appropriate for non-directories/regular files. */ 2333 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL) 2334 2335 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags) 2336 { 2337 if (S_ISDIR(mode)) 2338 return flags; 2339 else if (S_ISREG(mode)) 2340 return flags & F2FS_REG_FLMASK; 2341 else 2342 return flags & F2FS_OTHER_FLMASK; 2343 } 2344 2345 /* used for f2fs_inode_info->flags */ 2346 enum { 2347 FI_NEW_INODE, /* indicate newly allocated inode */ 2348 FI_DIRTY_INODE, /* indicate inode is dirty or not */ 2349 FI_AUTO_RECOVER, /* indicate inode is recoverable */ 2350 FI_DIRTY_DIR, /* indicate directory has dirty pages */ 2351 FI_INC_LINK, /* need to increment i_nlink */ 2352 FI_ACL_MODE, /* indicate acl mode */ 2353 FI_NO_ALLOC, /* should not allocate any blocks */ 2354 FI_FREE_NID, /* free allocated nide */ 2355 FI_NO_EXTENT, /* not to use the extent cache */ 2356 FI_INLINE_XATTR, /* used for inline xattr */ 2357 FI_INLINE_DATA, /* used for inline data*/ 2358 FI_INLINE_DENTRY, /* used for inline dentry */ 2359 FI_APPEND_WRITE, /* inode has appended data */ 2360 FI_UPDATE_WRITE, /* inode has in-place-update data */ 2361 FI_NEED_IPU, /* used for ipu per file */ 2362 FI_ATOMIC_FILE, /* indicate atomic file */ 2363 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */ 2364 FI_VOLATILE_FILE, /* indicate volatile file */ 2365 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */ 2366 FI_DROP_CACHE, /* drop dirty page cache */ 2367 FI_DATA_EXIST, /* indicate data exists */ 2368 FI_INLINE_DOTS, /* indicate inline dot dentries */ 2369 FI_DO_DEFRAG, /* indicate defragment is running */ 2370 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */ 2371 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */ 2372 FI_HOT_DATA, /* indicate file is hot */ 2373 FI_EXTRA_ATTR, /* indicate file has extra attribute */ 2374 FI_PROJ_INHERIT, /* indicate file inherits projectid */ 2375 FI_PIN_FILE, /* indicate file should not be gced */ 2376 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */ 2377 }; 2378 2379 static inline void __mark_inode_dirty_flag(struct inode *inode, 2380 int flag, bool set) 2381 { 2382 switch (flag) { 2383 case FI_INLINE_XATTR: 2384 case FI_INLINE_DATA: 2385 case FI_INLINE_DENTRY: 2386 case FI_NEW_INODE: 2387 if (set) 2388 return; 2389 /* fall through */ 2390 case FI_DATA_EXIST: 2391 case FI_INLINE_DOTS: 2392 case FI_PIN_FILE: 2393 f2fs_mark_inode_dirty_sync(inode, true); 2394 } 2395 } 2396 2397 static inline void set_inode_flag(struct inode *inode, int flag) 2398 { 2399 if (!test_bit(flag, &F2FS_I(inode)->flags)) 2400 set_bit(flag, &F2FS_I(inode)->flags); 2401 __mark_inode_dirty_flag(inode, flag, true); 2402 } 2403 2404 static inline int is_inode_flag_set(struct inode *inode, int flag) 2405 { 2406 return test_bit(flag, &F2FS_I(inode)->flags); 2407 } 2408 2409 static inline void clear_inode_flag(struct inode *inode, int flag) 2410 { 2411 if (test_bit(flag, &F2FS_I(inode)->flags)) 2412 clear_bit(flag, &F2FS_I(inode)->flags); 2413 __mark_inode_dirty_flag(inode, flag, false); 2414 } 2415 2416 static inline void set_acl_inode(struct inode *inode, umode_t mode) 2417 { 2418 F2FS_I(inode)->i_acl_mode = mode; 2419 set_inode_flag(inode, FI_ACL_MODE); 2420 f2fs_mark_inode_dirty_sync(inode, false); 2421 } 2422 2423 static inline void f2fs_i_links_write(struct inode *inode, bool inc) 2424 { 2425 if (inc) 2426 inc_nlink(inode); 2427 else 2428 drop_nlink(inode); 2429 f2fs_mark_inode_dirty_sync(inode, true); 2430 } 2431 2432 static inline void f2fs_i_blocks_write(struct inode *inode, 2433 block_t diff, bool add, bool claim) 2434 { 2435 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2436 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2437 2438 /* add = 1, claim = 1 should be dquot_reserve_block in pair */ 2439 if (add) { 2440 if (claim) 2441 dquot_claim_block(inode, diff); 2442 else 2443 dquot_alloc_block_nofail(inode, diff); 2444 } else { 2445 dquot_free_block(inode, diff); 2446 } 2447 2448 f2fs_mark_inode_dirty_sync(inode, true); 2449 if (clean || recover) 2450 set_inode_flag(inode, FI_AUTO_RECOVER); 2451 } 2452 2453 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size) 2454 { 2455 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE); 2456 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER); 2457 2458 if (i_size_read(inode) == i_size) 2459 return; 2460 2461 i_size_write(inode, i_size); 2462 f2fs_mark_inode_dirty_sync(inode, true); 2463 if (clean || recover) 2464 set_inode_flag(inode, FI_AUTO_RECOVER); 2465 } 2466 2467 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth) 2468 { 2469 F2FS_I(inode)->i_current_depth = depth; 2470 f2fs_mark_inode_dirty_sync(inode, true); 2471 } 2472 2473 static inline void f2fs_i_gc_failures_write(struct inode *inode, 2474 unsigned int count) 2475 { 2476 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count; 2477 f2fs_mark_inode_dirty_sync(inode, true); 2478 } 2479 2480 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid) 2481 { 2482 F2FS_I(inode)->i_xattr_nid = xnid; 2483 f2fs_mark_inode_dirty_sync(inode, true); 2484 } 2485 2486 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino) 2487 { 2488 F2FS_I(inode)->i_pino = pino; 2489 f2fs_mark_inode_dirty_sync(inode, true); 2490 } 2491 2492 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri) 2493 { 2494 struct f2fs_inode_info *fi = F2FS_I(inode); 2495 2496 if (ri->i_inline & F2FS_INLINE_XATTR) 2497 set_bit(FI_INLINE_XATTR, &fi->flags); 2498 if (ri->i_inline & F2FS_INLINE_DATA) 2499 set_bit(FI_INLINE_DATA, &fi->flags); 2500 if (ri->i_inline & F2FS_INLINE_DENTRY) 2501 set_bit(FI_INLINE_DENTRY, &fi->flags); 2502 if (ri->i_inline & F2FS_DATA_EXIST) 2503 set_bit(FI_DATA_EXIST, &fi->flags); 2504 if (ri->i_inline & F2FS_INLINE_DOTS) 2505 set_bit(FI_INLINE_DOTS, &fi->flags); 2506 if (ri->i_inline & F2FS_EXTRA_ATTR) 2507 set_bit(FI_EXTRA_ATTR, &fi->flags); 2508 if (ri->i_inline & F2FS_PIN_FILE) 2509 set_bit(FI_PIN_FILE, &fi->flags); 2510 } 2511 2512 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri) 2513 { 2514 ri->i_inline = 0; 2515 2516 if (is_inode_flag_set(inode, FI_INLINE_XATTR)) 2517 ri->i_inline |= F2FS_INLINE_XATTR; 2518 if (is_inode_flag_set(inode, FI_INLINE_DATA)) 2519 ri->i_inline |= F2FS_INLINE_DATA; 2520 if (is_inode_flag_set(inode, FI_INLINE_DENTRY)) 2521 ri->i_inline |= F2FS_INLINE_DENTRY; 2522 if (is_inode_flag_set(inode, FI_DATA_EXIST)) 2523 ri->i_inline |= F2FS_DATA_EXIST; 2524 if (is_inode_flag_set(inode, FI_INLINE_DOTS)) 2525 ri->i_inline |= F2FS_INLINE_DOTS; 2526 if (is_inode_flag_set(inode, FI_EXTRA_ATTR)) 2527 ri->i_inline |= F2FS_EXTRA_ATTR; 2528 if (is_inode_flag_set(inode, FI_PIN_FILE)) 2529 ri->i_inline |= F2FS_PIN_FILE; 2530 } 2531 2532 static inline int f2fs_has_extra_attr(struct inode *inode) 2533 { 2534 return is_inode_flag_set(inode, FI_EXTRA_ATTR); 2535 } 2536 2537 static inline int f2fs_has_inline_xattr(struct inode *inode) 2538 { 2539 return is_inode_flag_set(inode, FI_INLINE_XATTR); 2540 } 2541 2542 static inline unsigned int addrs_per_inode(struct inode *inode) 2543 { 2544 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode); 2545 } 2546 2547 static inline void *inline_xattr_addr(struct inode *inode, struct page *page) 2548 { 2549 struct f2fs_inode *ri = F2FS_INODE(page); 2550 2551 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE - 2552 get_inline_xattr_addrs(inode)]); 2553 } 2554 2555 static inline int inline_xattr_size(struct inode *inode) 2556 { 2557 return get_inline_xattr_addrs(inode) * sizeof(__le32); 2558 } 2559 2560 static inline int f2fs_has_inline_data(struct inode *inode) 2561 { 2562 return is_inode_flag_set(inode, FI_INLINE_DATA); 2563 } 2564 2565 static inline int f2fs_exist_data(struct inode *inode) 2566 { 2567 return is_inode_flag_set(inode, FI_DATA_EXIST); 2568 } 2569 2570 static inline int f2fs_has_inline_dots(struct inode *inode) 2571 { 2572 return is_inode_flag_set(inode, FI_INLINE_DOTS); 2573 } 2574 2575 static inline bool f2fs_is_pinned_file(struct inode *inode) 2576 { 2577 return is_inode_flag_set(inode, FI_PIN_FILE); 2578 } 2579 2580 static inline bool f2fs_is_atomic_file(struct inode *inode) 2581 { 2582 return is_inode_flag_set(inode, FI_ATOMIC_FILE); 2583 } 2584 2585 static inline bool f2fs_is_commit_atomic_write(struct inode *inode) 2586 { 2587 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT); 2588 } 2589 2590 static inline bool f2fs_is_volatile_file(struct inode *inode) 2591 { 2592 return is_inode_flag_set(inode, FI_VOLATILE_FILE); 2593 } 2594 2595 static inline bool f2fs_is_first_block_written(struct inode *inode) 2596 { 2597 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN); 2598 } 2599 2600 static inline bool f2fs_is_drop_cache(struct inode *inode) 2601 { 2602 return is_inode_flag_set(inode, FI_DROP_CACHE); 2603 } 2604 2605 static inline void *inline_data_addr(struct inode *inode, struct page *page) 2606 { 2607 struct f2fs_inode *ri = F2FS_INODE(page); 2608 int extra_size = get_extra_isize(inode); 2609 2610 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]); 2611 } 2612 2613 static inline int f2fs_has_inline_dentry(struct inode *inode) 2614 { 2615 return is_inode_flag_set(inode, FI_INLINE_DENTRY); 2616 } 2617 2618 static inline int is_file(struct inode *inode, int type) 2619 { 2620 return F2FS_I(inode)->i_advise & type; 2621 } 2622 2623 static inline void set_file(struct inode *inode, int type) 2624 { 2625 F2FS_I(inode)->i_advise |= type; 2626 f2fs_mark_inode_dirty_sync(inode, true); 2627 } 2628 2629 static inline void clear_file(struct inode *inode, int type) 2630 { 2631 F2FS_I(inode)->i_advise &= ~type; 2632 f2fs_mark_inode_dirty_sync(inode, true); 2633 } 2634 2635 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync) 2636 { 2637 bool ret; 2638 2639 if (dsync) { 2640 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2641 2642 spin_lock(&sbi->inode_lock[DIRTY_META]); 2643 ret = list_empty(&F2FS_I(inode)->gdirty_list); 2644 spin_unlock(&sbi->inode_lock[DIRTY_META]); 2645 return ret; 2646 } 2647 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) || 2648 file_keep_isize(inode) || 2649 i_size_read(inode) & ~PAGE_MASK) 2650 return false; 2651 2652 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime)) 2653 return false; 2654 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime)) 2655 return false; 2656 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime)) 2657 return false; 2658 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3, 2659 &F2FS_I(inode)->i_crtime)) 2660 return false; 2661 2662 down_read(&F2FS_I(inode)->i_sem); 2663 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode); 2664 up_read(&F2FS_I(inode)->i_sem); 2665 2666 return ret; 2667 } 2668 2669 static inline bool f2fs_readonly(struct super_block *sb) 2670 { 2671 return sb_rdonly(sb); 2672 } 2673 2674 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) 2675 { 2676 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); 2677 } 2678 2679 static inline bool is_dot_dotdot(const struct qstr *str) 2680 { 2681 if (str->len == 1 && str->name[0] == '.') 2682 return true; 2683 2684 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.') 2685 return true; 2686 2687 return false; 2688 } 2689 2690 static inline bool f2fs_may_extent_tree(struct inode *inode) 2691 { 2692 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 2693 2694 if (!test_opt(sbi, EXTENT_CACHE) || 2695 is_inode_flag_set(inode, FI_NO_EXTENT)) 2696 return false; 2697 2698 /* 2699 * for recovered files during mount do not create extents 2700 * if shrinker is not registered. 2701 */ 2702 if (list_empty(&sbi->s_list)) 2703 return false; 2704 2705 return S_ISREG(inode->i_mode); 2706 } 2707 2708 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, 2709 size_t size, gfp_t flags) 2710 { 2711 void *ret; 2712 2713 if (time_to_inject(sbi, FAULT_KMALLOC)) { 2714 f2fs_show_injection_info(FAULT_KMALLOC); 2715 return NULL; 2716 } 2717 2718 ret = kmalloc(size, flags); 2719 if (ret) 2720 return ret; 2721 2722 return kvmalloc(size, flags); 2723 } 2724 2725 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, 2726 size_t size, gfp_t flags) 2727 { 2728 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO); 2729 } 2730 2731 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi, 2732 size_t size, gfp_t flags) 2733 { 2734 if (time_to_inject(sbi, FAULT_KVMALLOC)) { 2735 f2fs_show_injection_info(FAULT_KVMALLOC); 2736 return NULL; 2737 } 2738 2739 return kvmalloc(size, flags); 2740 } 2741 2742 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi, 2743 size_t size, gfp_t flags) 2744 { 2745 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO); 2746 } 2747 2748 static inline int get_extra_isize(struct inode *inode) 2749 { 2750 return F2FS_I(inode)->i_extra_isize / sizeof(__le32); 2751 } 2752 2753 static inline int get_inline_xattr_addrs(struct inode *inode) 2754 { 2755 return F2FS_I(inode)->i_inline_xattr_size; 2756 } 2757 2758 #define f2fs_get_inode_mode(i) \ 2759 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \ 2760 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode)) 2761 2762 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \ 2763 (offsetof(struct f2fs_inode, i_extra_end) - \ 2764 offsetof(struct f2fs_inode, i_extra_isize)) \ 2765 2766 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr)) 2767 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \ 2768 ((offsetof(typeof(*(f2fs_inode)), field) + \ 2769 sizeof((f2fs_inode)->field)) \ 2770 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \ 2771 2772 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi) 2773 { 2774 int i; 2775 2776 spin_lock(&sbi->iostat_lock); 2777 for (i = 0; i < NR_IO_TYPE; i++) 2778 sbi->write_iostat[i] = 0; 2779 spin_unlock(&sbi->iostat_lock); 2780 } 2781 2782 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi, 2783 enum iostat_type type, unsigned long long io_bytes) 2784 { 2785 if (!sbi->iostat_enable) 2786 return; 2787 spin_lock(&sbi->iostat_lock); 2788 sbi->write_iostat[type] += io_bytes; 2789 2790 if (type == APP_WRITE_IO || type == APP_DIRECT_IO) 2791 sbi->write_iostat[APP_BUFFERED_IO] = 2792 sbi->write_iostat[APP_WRITE_IO] - 2793 sbi->write_iostat[APP_DIRECT_IO]; 2794 spin_unlock(&sbi->iostat_lock); 2795 } 2796 2797 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1) 2798 2799 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META && \ 2800 (!is_read_io((fio)->op) || (fio)->is_meta)) 2801 2802 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 2803 block_t blkaddr, int type); 2804 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2805 static inline void verify_blkaddr(struct f2fs_sb_info *sbi, 2806 block_t blkaddr, int type) 2807 { 2808 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) { 2809 f2fs_msg(sbi->sb, KERN_ERR, 2810 "invalid blkaddr: %u, type: %d, run fsck to fix.", 2811 blkaddr, type); 2812 f2fs_bug_on(sbi, 1); 2813 } 2814 } 2815 2816 static inline bool __is_valid_data_blkaddr(block_t blkaddr) 2817 { 2818 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR) 2819 return false; 2820 return true; 2821 } 2822 2823 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi, 2824 block_t blkaddr) 2825 { 2826 if (!__is_valid_data_blkaddr(blkaddr)) 2827 return false; 2828 verify_blkaddr(sbi, blkaddr, DATA_GENERIC); 2829 return true; 2830 } 2831 2832 /* 2833 * file.c 2834 */ 2835 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync); 2836 void f2fs_truncate_data_blocks(struct dnode_of_data *dn); 2837 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock, 2838 bool buf_write); 2839 int f2fs_truncate(struct inode *inode); 2840 int f2fs_getattr(const struct path *path, struct kstat *stat, 2841 u32 request_mask, unsigned int flags); 2842 int f2fs_setattr(struct dentry *dentry, struct iattr *attr); 2843 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end); 2844 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count); 2845 int f2fs_precache_extents(struct inode *inode); 2846 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); 2847 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 2848 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid); 2849 int f2fs_pin_file_control(struct inode *inode, bool inc); 2850 2851 /* 2852 * inode.c 2853 */ 2854 void f2fs_set_inode_flags(struct inode *inode); 2855 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); 2856 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); 2857 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); 2858 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); 2859 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); 2860 void f2fs_update_inode(struct inode *inode, struct page *node_page); 2861 void f2fs_update_inode_page(struct inode *inode); 2862 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc); 2863 void f2fs_evict_inode(struct inode *inode); 2864 void f2fs_handle_failed_inode(struct inode *inode); 2865 2866 /* 2867 * namei.c 2868 */ 2869 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 2870 bool hot, bool set); 2871 struct dentry *f2fs_get_parent(struct dentry *child); 2872 2873 /* 2874 * dir.c 2875 */ 2876 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de); 2877 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname, 2878 f2fs_hash_t namehash, int *max_slots, 2879 struct f2fs_dentry_ptr *d); 2880 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, 2881 unsigned int start_pos, struct fscrypt_str *fstr); 2882 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent, 2883 struct f2fs_dentry_ptr *d); 2884 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir, 2885 const struct qstr *new_name, 2886 const struct qstr *orig_name, struct page *dpage); 2887 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode, 2888 unsigned int current_depth); 2889 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots); 2890 void f2fs_drop_nlink(struct inode *dir, struct inode *inode); 2891 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir, 2892 struct fscrypt_name *fname, struct page **res_page); 2893 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, 2894 const struct qstr *child, struct page **res_page); 2895 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p); 2896 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr, 2897 struct page **page); 2898 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de, 2899 struct page *page, struct inode *inode); 2900 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d, 2901 const struct qstr *name, f2fs_hash_t name_hash, 2902 unsigned int bit_pos); 2903 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name, 2904 const struct qstr *orig_name, 2905 struct inode *inode, nid_t ino, umode_t mode); 2906 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname, 2907 struct inode *inode, nid_t ino, umode_t mode); 2908 int f2fs_do_add_link(struct inode *dir, const struct qstr *name, 2909 struct inode *inode, nid_t ino, umode_t mode); 2910 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page, 2911 struct inode *dir, struct inode *inode); 2912 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir); 2913 bool f2fs_empty_dir(struct inode *dir); 2914 2915 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode) 2916 { 2917 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name, 2918 inode, inode->i_ino, inode->i_mode); 2919 } 2920 2921 /* 2922 * super.c 2923 */ 2924 int f2fs_inode_dirtied(struct inode *inode, bool sync); 2925 void f2fs_inode_synced(struct inode *inode); 2926 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly); 2927 int f2fs_quota_sync(struct super_block *sb, int type); 2928 void f2fs_quota_off_umount(struct super_block *sb); 2929 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover); 2930 int f2fs_sync_fs(struct super_block *sb, int sync); 2931 extern __printf(3, 4) 2932 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...); 2933 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi); 2934 2935 /* 2936 * hash.c 2937 */ 2938 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info, 2939 struct fscrypt_name *fname); 2940 2941 /* 2942 * node.c 2943 */ 2944 struct dnode_of_data; 2945 struct node_info; 2946 2947 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid); 2948 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type); 2949 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page); 2950 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi); 2951 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page); 2952 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi); 2953 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid); 2954 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid); 2955 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino); 2956 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid, 2957 struct node_info *ni); 2958 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs); 2959 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode); 2960 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from); 2961 int f2fs_truncate_xattr_node(struct inode *inode); 2962 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, 2963 unsigned int seq_id); 2964 int f2fs_remove_inode_page(struct inode *inode); 2965 struct page *f2fs_new_inode_page(struct inode *inode); 2966 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs); 2967 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid); 2968 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid); 2969 struct page *f2fs_get_node_page_ra(struct page *parent, int start); 2970 int f2fs_move_node_page(struct page *node_page, int gc_type); 2971 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode, 2972 struct writeback_control *wbc, bool atomic, 2973 unsigned int *seq_id); 2974 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi, 2975 struct writeback_control *wbc, 2976 bool do_balance, enum iostat_type io_type); 2977 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount); 2978 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid); 2979 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid); 2980 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid); 2981 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink); 2982 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page); 2983 int f2fs_recover_xattr_data(struct inode *inode, struct page *page); 2984 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page); 2985 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi, 2986 unsigned int segno, struct f2fs_summary_block *sum); 2987 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 2988 int f2fs_build_node_manager(struct f2fs_sb_info *sbi); 2989 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi); 2990 int __init f2fs_create_node_manager_caches(void); 2991 void f2fs_destroy_node_manager_caches(void); 2992 2993 /* 2994 * segment.c 2995 */ 2996 bool f2fs_need_SSR(struct f2fs_sb_info *sbi); 2997 void f2fs_register_inmem_page(struct inode *inode, struct page *page); 2998 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure); 2999 void f2fs_drop_inmem_pages(struct inode *inode); 3000 void f2fs_drop_inmem_page(struct inode *inode, struct page *page); 3001 int f2fs_commit_inmem_pages(struct inode *inode); 3002 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); 3003 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); 3004 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); 3005 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi); 3006 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); 3007 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); 3008 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); 3009 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); 3010 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi); 3011 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi); 3012 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi); 3013 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi, 3014 struct cp_control *cpc); 3015 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi); 3016 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi); 3017 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi); 3018 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra); 3019 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi); 3020 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range); 3021 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi, 3022 struct cp_control *cpc); 3023 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno); 3024 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src, 3025 block_t blk_addr); 3026 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page, 3027 enum iostat_type io_type); 3028 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio); 3029 void f2fs_outplace_write_data(struct dnode_of_data *dn, 3030 struct f2fs_io_info *fio); 3031 int f2fs_inplace_write_data(struct f2fs_io_info *fio); 3032 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 3033 block_t old_blkaddr, block_t new_blkaddr, 3034 bool recover_curseg, bool recover_newaddr); 3035 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, 3036 block_t old_addr, block_t new_addr, 3037 unsigned char version, bool recover_curseg, 3038 bool recover_newaddr); 3039 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, 3040 block_t old_blkaddr, block_t *new_blkaddr, 3041 struct f2fs_summary *sum, int type, 3042 struct f2fs_io_info *fio, bool add_list); 3043 void f2fs_wait_on_page_writeback(struct page *page, 3044 enum page_type type, bool ordered, bool locked); 3045 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr); 3046 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr, 3047 block_t len); 3048 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3049 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk); 3050 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type, 3051 unsigned int val, int alloc); 3052 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3053 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi); 3054 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi); 3055 int __init f2fs_create_segment_manager_caches(void); 3056 void f2fs_destroy_segment_manager_caches(void); 3057 int f2fs_rw_hint_to_seg_type(enum rw_hint hint); 3058 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, 3059 enum page_type type, enum temp_type temp); 3060 3061 /* 3062 * checkpoint.c 3063 */ 3064 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io); 3065 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3066 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index); 3067 struct page *f2fs_get_meta_page_nofail(struct f2fs_sb_info *sbi, pgoff_t index); 3068 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index); 3069 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, 3070 block_t blkaddr, int type); 3071 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, 3072 int type, bool sync); 3073 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index); 3074 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, 3075 long nr_to_write, enum iostat_type io_type); 3076 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3077 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type); 3078 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all); 3079 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode); 3080 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3081 unsigned int devidx, int type); 3082 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino, 3083 unsigned int devidx, int type); 3084 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi); 3085 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi); 3086 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi); 3087 void f2fs_add_orphan_inode(struct inode *inode); 3088 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino); 3089 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi); 3090 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi); 3091 void f2fs_update_dirty_page(struct inode *inode, struct page *page); 3092 void f2fs_remove_dirty_inode(struct inode *inode); 3093 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type); 3094 void f2fs_wait_on_all_pages_writeback(struct f2fs_sb_info *sbi); 3095 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc); 3096 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi); 3097 int __init f2fs_create_checkpoint_caches(void); 3098 void f2fs_destroy_checkpoint_caches(void); 3099 3100 /* 3101 * data.c 3102 */ 3103 int f2fs_init_post_read_processing(void); 3104 void f2fs_destroy_post_read_processing(void); 3105 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type); 3106 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi, 3107 struct inode *inode, struct page *page, 3108 nid_t ino, enum page_type type); 3109 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi); 3110 int f2fs_submit_page_bio(struct f2fs_io_info *fio); 3111 void f2fs_submit_page_write(struct f2fs_io_info *fio); 3112 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi, 3113 block_t blk_addr, struct bio *bio); 3114 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr); 3115 void f2fs_set_data_blkaddr(struct dnode_of_data *dn); 3116 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr); 3117 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count); 3118 int f2fs_reserve_new_block(struct dnode_of_data *dn); 3119 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index); 3120 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from); 3121 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index); 3122 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index, 3123 int op_flags, bool for_write); 3124 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index); 3125 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index, 3126 bool for_write); 3127 struct page *f2fs_get_new_data_page(struct inode *inode, 3128 struct page *ipage, pgoff_t index, bool new_i_size); 3129 int f2fs_do_write_data_page(struct f2fs_io_info *fio); 3130 void __do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock); 3131 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 3132 int create, int flag); 3133 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 3134 u64 start, u64 len); 3135 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio); 3136 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio); 3137 void f2fs_invalidate_page(struct page *page, unsigned int offset, 3138 unsigned int length); 3139 int f2fs_release_page(struct page *page, gfp_t wait); 3140 #ifdef CONFIG_MIGRATION 3141 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage, 3142 struct page *page, enum migrate_mode mode); 3143 #endif 3144 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len); 3145 void f2fs_clear_page_cache_dirty_tag(struct page *page); 3146 3147 /* 3148 * gc.c 3149 */ 3150 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi); 3151 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi); 3152 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode); 3153 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, 3154 unsigned int segno); 3155 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi); 3156 3157 /* 3158 * recovery.c 3159 */ 3160 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only); 3161 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi); 3162 3163 /* 3164 * debug.c 3165 */ 3166 #ifdef CONFIG_F2FS_STAT_FS 3167 struct f2fs_stat_info { 3168 struct list_head stat_list; 3169 struct f2fs_sb_info *sbi; 3170 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs; 3171 int main_area_segs, main_area_sections, main_area_zones; 3172 unsigned long long hit_largest, hit_cached, hit_rbtree; 3173 unsigned long long hit_total, total_ext; 3174 int ext_tree, zombie_tree, ext_node; 3175 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta; 3176 int ndirty_data, ndirty_qdata; 3177 int inmem_pages; 3178 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all; 3179 int nats, dirty_nats, sits, dirty_sits; 3180 int free_nids, avail_nids, alloc_nids; 3181 int total_count, utilization; 3182 int bg_gc, nr_wb_cp_data, nr_wb_data; 3183 int nr_rd_data, nr_rd_node, nr_rd_meta; 3184 int nr_dio_read, nr_dio_write; 3185 unsigned int io_skip_bggc, other_skip_bggc; 3186 int nr_flushing, nr_flushed, flush_list_empty; 3187 int nr_discarding, nr_discarded; 3188 int nr_discard_cmd; 3189 unsigned int undiscard_blks; 3190 int inline_xattr, inline_inode, inline_dir, append, update, orphans; 3191 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt; 3192 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks; 3193 unsigned int bimodal, avg_vblocks; 3194 int util_free, util_valid, util_invalid; 3195 int rsvd_segs, overp_segs; 3196 int dirty_count, node_pages, meta_pages; 3197 int prefree_count, call_count, cp_count, bg_cp_count; 3198 int tot_segs, node_segs, data_segs, free_segs, free_secs; 3199 int bg_node_segs, bg_data_segs; 3200 int tot_blks, data_blks, node_blks; 3201 int bg_data_blks, bg_node_blks; 3202 unsigned long long skipped_atomic_files[2]; 3203 int curseg[NR_CURSEG_TYPE]; 3204 int cursec[NR_CURSEG_TYPE]; 3205 int curzone[NR_CURSEG_TYPE]; 3206 3207 unsigned int meta_count[META_MAX]; 3208 unsigned int segment_count[2]; 3209 unsigned int block_count[2]; 3210 unsigned int inplace_count; 3211 unsigned long long base_mem, cache_mem, page_mem; 3212 }; 3213 3214 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) 3215 { 3216 return (struct f2fs_stat_info *)sbi->stat_info; 3217 } 3218 3219 #define stat_inc_cp_count(si) ((si)->cp_count++) 3220 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++) 3221 #define stat_inc_call_count(si) ((si)->call_count++) 3222 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++) 3223 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++) 3224 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++) 3225 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++) 3226 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--) 3227 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext)) 3228 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree)) 3229 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest)) 3230 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached)) 3231 #define stat_inc_inline_xattr(inode) \ 3232 do { \ 3233 if (f2fs_has_inline_xattr(inode)) \ 3234 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \ 3235 } while (0) 3236 #define stat_dec_inline_xattr(inode) \ 3237 do { \ 3238 if (f2fs_has_inline_xattr(inode)) \ 3239 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \ 3240 } while (0) 3241 #define stat_inc_inline_inode(inode) \ 3242 do { \ 3243 if (f2fs_has_inline_data(inode)) \ 3244 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \ 3245 } while (0) 3246 #define stat_dec_inline_inode(inode) \ 3247 do { \ 3248 if (f2fs_has_inline_data(inode)) \ 3249 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \ 3250 } while (0) 3251 #define stat_inc_inline_dir(inode) \ 3252 do { \ 3253 if (f2fs_has_inline_dentry(inode)) \ 3254 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \ 3255 } while (0) 3256 #define stat_dec_inline_dir(inode) \ 3257 do { \ 3258 if (f2fs_has_inline_dentry(inode)) \ 3259 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \ 3260 } while (0) 3261 #define stat_inc_meta_count(sbi, blkaddr) \ 3262 do { \ 3263 if (blkaddr < SIT_I(sbi)->sit_base_addr) \ 3264 atomic_inc(&(sbi)->meta_count[META_CP]); \ 3265 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \ 3266 atomic_inc(&(sbi)->meta_count[META_SIT]); \ 3267 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \ 3268 atomic_inc(&(sbi)->meta_count[META_NAT]); \ 3269 else if (blkaddr < SM_I(sbi)->main_blkaddr) \ 3270 atomic_inc(&(sbi)->meta_count[META_SSA]); \ 3271 } while (0) 3272 #define stat_inc_seg_type(sbi, curseg) \ 3273 ((sbi)->segment_count[(curseg)->alloc_type]++) 3274 #define stat_inc_block_count(sbi, curseg) \ 3275 ((sbi)->block_count[(curseg)->alloc_type]++) 3276 #define stat_inc_inplace_blocks(sbi) \ 3277 (atomic_inc(&(sbi)->inplace_count)) 3278 #define stat_inc_atomic_write(inode) \ 3279 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt)) 3280 #define stat_dec_atomic_write(inode) \ 3281 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt)) 3282 #define stat_update_max_atomic_write(inode) \ 3283 do { \ 3284 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \ 3285 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \ 3286 if (cur > max) \ 3287 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \ 3288 } while (0) 3289 #define stat_inc_volatile_write(inode) \ 3290 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt)) 3291 #define stat_dec_volatile_write(inode) \ 3292 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt)) 3293 #define stat_update_max_volatile_write(inode) \ 3294 do { \ 3295 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \ 3296 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \ 3297 if (cur > max) \ 3298 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \ 3299 } while (0) 3300 #define stat_inc_seg_count(sbi, type, gc_type) \ 3301 do { \ 3302 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3303 si->tot_segs++; \ 3304 if ((type) == SUM_TYPE_DATA) { \ 3305 si->data_segs++; \ 3306 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \ 3307 } else { \ 3308 si->node_segs++; \ 3309 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \ 3310 } \ 3311 } while (0) 3312 3313 #define stat_inc_tot_blk_count(si, blks) \ 3314 ((si)->tot_blks += (blks)) 3315 3316 #define stat_inc_data_blk_count(sbi, blks, gc_type) \ 3317 do { \ 3318 struct f2fs_stat_info *si = F2FS_STAT(sbi); \ 3319 stat_inc_tot_blk_count(si, blks); \ 3320 si->data_blks += (blks); \ 3321 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3322 } while (0) 3323 3324 #define stat_inc_node_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->node_blks += (blks); \ 3329 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \ 3330 } while (0) 3331 3332 int f2fs_build_stats(struct f2fs_sb_info *sbi); 3333 void f2fs_destroy_stats(struct f2fs_sb_info *sbi); 3334 void __init f2fs_create_root_stats(void); 3335 void f2fs_destroy_root_stats(void); 3336 #else 3337 #define stat_inc_cp_count(si) do { } while (0) 3338 #define stat_inc_bg_cp_count(si) do { } while (0) 3339 #define stat_inc_call_count(si) do { } while (0) 3340 #define stat_inc_bggc_count(si) do { } while (0) 3341 #define stat_io_skip_bggc_count(sbi) do { } while (0) 3342 #define stat_other_skip_bggc_count(sbi) do { } while (0) 3343 #define stat_inc_dirty_inode(sbi, type) do { } while (0) 3344 #define stat_dec_dirty_inode(sbi, type) do { } while (0) 3345 #define stat_inc_total_hit(sb) do { } while (0) 3346 #define stat_inc_rbtree_node_hit(sb) do { } while (0) 3347 #define stat_inc_largest_node_hit(sbi) do { } while (0) 3348 #define stat_inc_cached_node_hit(sbi) do { } while (0) 3349 #define stat_inc_inline_xattr(inode) do { } while (0) 3350 #define stat_dec_inline_xattr(inode) do { } while (0) 3351 #define stat_inc_inline_inode(inode) do { } while (0) 3352 #define stat_dec_inline_inode(inode) do { } while (0) 3353 #define stat_inc_inline_dir(inode) do { } while (0) 3354 #define stat_dec_inline_dir(inode) do { } while (0) 3355 #define stat_inc_atomic_write(inode) do { } while (0) 3356 #define stat_dec_atomic_write(inode) do { } while (0) 3357 #define stat_update_max_atomic_write(inode) do { } while (0) 3358 #define stat_inc_volatile_write(inode) do { } while (0) 3359 #define stat_dec_volatile_write(inode) do { } while (0) 3360 #define stat_update_max_volatile_write(inode) do { } while (0) 3361 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0) 3362 #define stat_inc_seg_type(sbi, curseg) do { } while (0) 3363 #define stat_inc_block_count(sbi, curseg) do { } while (0) 3364 #define stat_inc_inplace_blocks(sbi) do { } while (0) 3365 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0) 3366 #define stat_inc_tot_blk_count(si, blks) do { } while (0) 3367 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0) 3368 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0) 3369 3370 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } 3371 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } 3372 static inline void __init f2fs_create_root_stats(void) { } 3373 static inline void f2fs_destroy_root_stats(void) { } 3374 #endif 3375 3376 extern const struct file_operations f2fs_dir_operations; 3377 extern const struct file_operations f2fs_file_operations; 3378 extern const struct inode_operations f2fs_file_inode_operations; 3379 extern const struct address_space_operations f2fs_dblock_aops; 3380 extern const struct address_space_operations f2fs_node_aops; 3381 extern const struct address_space_operations f2fs_meta_aops; 3382 extern const struct inode_operations f2fs_dir_inode_operations; 3383 extern const struct inode_operations f2fs_symlink_inode_operations; 3384 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations; 3385 extern const struct inode_operations f2fs_special_inode_operations; 3386 extern struct kmem_cache *f2fs_inode_entry_slab; 3387 3388 /* 3389 * inline.c 3390 */ 3391 bool f2fs_may_inline_data(struct inode *inode); 3392 bool f2fs_may_inline_dentry(struct inode *inode); 3393 void f2fs_do_read_inline_data(struct page *page, struct page *ipage); 3394 void f2fs_truncate_inline_inode(struct inode *inode, 3395 struct page *ipage, u64 from); 3396 int f2fs_read_inline_data(struct inode *inode, struct page *page); 3397 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page); 3398 int f2fs_convert_inline_inode(struct inode *inode); 3399 int f2fs_write_inline_data(struct inode *inode, struct page *page); 3400 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage); 3401 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir, 3402 struct fscrypt_name *fname, struct page **res_page); 3403 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent, 3404 struct page *ipage); 3405 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name, 3406 const struct qstr *orig_name, 3407 struct inode *inode, nid_t ino, umode_t mode); 3408 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, 3409 struct page *page, struct inode *dir, 3410 struct inode *inode); 3411 bool f2fs_empty_inline_dir(struct inode *dir); 3412 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, 3413 struct fscrypt_str *fstr); 3414 int f2fs_inline_data_fiemap(struct inode *inode, 3415 struct fiemap_extent_info *fieinfo, 3416 __u64 start, __u64 len); 3417 3418 /* 3419 * shrinker.c 3420 */ 3421 unsigned long f2fs_shrink_count(struct shrinker *shrink, 3422 struct shrink_control *sc); 3423 unsigned long f2fs_shrink_scan(struct shrinker *shrink, 3424 struct shrink_control *sc); 3425 void f2fs_join_shrinker(struct f2fs_sb_info *sbi); 3426 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi); 3427 3428 /* 3429 * extent_cache.c 3430 */ 3431 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root, 3432 struct rb_entry *cached_re, unsigned int ofs); 3433 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi, 3434 struct rb_root_cached *root, 3435 struct rb_node **parent, 3436 unsigned int ofs, bool *leftmost); 3437 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root, 3438 struct rb_entry *cached_re, unsigned int ofs, 3439 struct rb_entry **prev_entry, struct rb_entry **next_entry, 3440 struct rb_node ***insert_p, struct rb_node **insert_parent, 3441 bool force, bool *leftmost); 3442 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi, 3443 struct rb_root_cached *root); 3444 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink); 3445 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext); 3446 void f2fs_drop_extent_tree(struct inode *inode); 3447 unsigned int f2fs_destroy_extent_node(struct inode *inode); 3448 void f2fs_destroy_extent_tree(struct inode *inode); 3449 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs, 3450 struct extent_info *ei); 3451 void f2fs_update_extent_cache(struct dnode_of_data *dn); 3452 void f2fs_update_extent_cache_range(struct dnode_of_data *dn, 3453 pgoff_t fofs, block_t blkaddr, unsigned int len); 3454 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi); 3455 int __init f2fs_create_extent_cache(void); 3456 void f2fs_destroy_extent_cache(void); 3457 3458 /* 3459 * sysfs.c 3460 */ 3461 int __init f2fs_init_sysfs(void); 3462 void f2fs_exit_sysfs(void); 3463 int f2fs_register_sysfs(struct f2fs_sb_info *sbi); 3464 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi); 3465 3466 /* 3467 * crypto support 3468 */ 3469 static inline bool f2fs_encrypted_inode(struct inode *inode) 3470 { 3471 return file_is_encrypt(inode); 3472 } 3473 3474 static inline bool f2fs_encrypted_file(struct inode *inode) 3475 { 3476 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode); 3477 } 3478 3479 static inline void f2fs_set_encrypted_inode(struct inode *inode) 3480 { 3481 #ifdef CONFIG_F2FS_FS_ENCRYPTION 3482 file_set_encrypt(inode); 3483 f2fs_set_inode_flags(inode); 3484 #endif 3485 } 3486 3487 /* 3488 * Returns true if the reads of the inode's data need to undergo some 3489 * postprocessing step, like decryption or authenticity verification. 3490 */ 3491 static inline bool f2fs_post_read_required(struct inode *inode) 3492 { 3493 return f2fs_encrypted_file(inode); 3494 } 3495 3496 #define F2FS_FEATURE_FUNCS(name, flagname) \ 3497 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \ 3498 { \ 3499 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \ 3500 } 3501 3502 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT); 3503 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED); 3504 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR); 3505 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA); 3506 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM); 3507 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); 3508 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO); 3509 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME); 3510 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND); 3511 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM); 3512 3513 #ifdef CONFIG_BLK_DEV_ZONED 3514 static inline int get_blkz_type(struct f2fs_sb_info *sbi, 3515 struct block_device *bdev, block_t blkaddr) 3516 { 3517 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz; 3518 int i; 3519 3520 for (i = 0; i < sbi->s_ndevs; i++) 3521 if (FDEV(i).bdev == bdev) 3522 return FDEV(i).blkz_type[zno]; 3523 return -EINVAL; 3524 } 3525 #endif 3526 3527 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi) 3528 { 3529 return f2fs_sb_has_blkzoned(sbi); 3530 } 3531 3532 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi) 3533 { 3534 return blk_queue_discard(bdev_get_queue(sbi->sb->s_bdev)); 3535 } 3536 3537 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi) 3538 { 3539 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) || 3540 f2fs_hw_should_discard(sbi); 3541 } 3542 3543 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt) 3544 { 3545 clear_opt(sbi, ADAPTIVE); 3546 clear_opt(sbi, LFS); 3547 3548 switch (mt) { 3549 case F2FS_MOUNT_ADAPTIVE: 3550 set_opt(sbi, ADAPTIVE); 3551 break; 3552 case F2FS_MOUNT_LFS: 3553 set_opt(sbi, LFS); 3554 break; 3555 } 3556 } 3557 3558 static inline bool f2fs_may_encrypt(struct inode *inode) 3559 { 3560 #ifdef CONFIG_F2FS_FS_ENCRYPTION 3561 umode_t mode = inode->i_mode; 3562 3563 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)); 3564 #else 3565 return false; 3566 #endif 3567 } 3568 3569 static inline int block_unaligned_IO(struct inode *inode, 3570 struct kiocb *iocb, struct iov_iter *iter) 3571 { 3572 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); 3573 unsigned int blocksize_mask = (1 << i_blkbits) - 1; 3574 loff_t offset = iocb->ki_pos; 3575 unsigned long align = offset | iov_iter_alignment(iter); 3576 3577 return align & blocksize_mask; 3578 } 3579 3580 static inline int allow_outplace_dio(struct inode *inode, 3581 struct kiocb *iocb, struct iov_iter *iter) 3582 { 3583 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3584 int rw = iov_iter_rw(iter); 3585 3586 return (test_opt(sbi, LFS) && (rw == WRITE) && 3587 !block_unaligned_IO(inode, iocb, iter)); 3588 } 3589 3590 static inline bool f2fs_force_buffered_io(struct inode *inode, 3591 struct kiocb *iocb, struct iov_iter *iter) 3592 { 3593 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); 3594 int rw = iov_iter_rw(iter); 3595 3596 if (f2fs_post_read_required(inode)) 3597 return true; 3598 if (sbi->s_ndevs) 3599 return true; 3600 /* 3601 * for blkzoned device, fallback direct IO to buffered IO, so 3602 * all IOs can be serialized by log-structured write. 3603 */ 3604 if (f2fs_sb_has_blkzoned(sbi)) 3605 return true; 3606 if (test_opt(sbi, LFS) && (rw == WRITE) && 3607 block_unaligned_IO(inode, iocb, iter)) 3608 return true; 3609 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) 3610 return true; 3611 3612 return false; 3613 } 3614 3615 #ifdef CONFIG_F2FS_FAULT_INJECTION 3616 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, 3617 unsigned int type); 3618 #else 3619 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) 3620 #endif 3621 3622 #endif 3623 3624 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) 3625 { 3626 #ifdef CONFIG_QUOTA 3627 if (f2fs_sb_has_quota_ino(sbi)) 3628 return true; 3629 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || 3630 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || 3631 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) 3632 return true; 3633 #endif 3634 return false; 3635 } 3636