1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/vmalloc.h>
22 #include <linux/bio.h>
23 #include <linux/blkdev.h>
24 #include <linux/quotaops.h>
25 #include <linux/part_stat.h>
26 #include <crypto/hash.h>
28 #include <linux/fscrypt.h>
29 #include <linux/fsverity.h>
33 #ifdef CONFIG_F2FS_CHECK_FS
34 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
36 #define f2fs_bug_on(sbi, condition) \
38 if (WARN_ON(condition)) \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
48 FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
65 #ifdef CONFIG_F2FS_FAULT_INJECTION
66 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
68 struct f2fs_fault_info {
70 unsigned int inject_rate;
71 unsigned int inject_type;
74 extern const char *f2fs_fault_name[FAULT_MAX];
75 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
81 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
82 #define F2FS_MOUNT_DISCARD 0x00000004
83 #define F2FS_MOUNT_NOHEAP 0x00000008
84 #define F2FS_MOUNT_XATTR_USER 0x00000010
85 #define F2FS_MOUNT_POSIX_ACL 0x00000020
86 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
87 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
88 #define F2FS_MOUNT_INLINE_DATA 0x00000100
89 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
90 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
91 #define F2FS_MOUNT_NOBARRIER 0x00000800
92 #define F2FS_MOUNT_FASTBOOT 0x00001000
93 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
94 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
95 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
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 #define F2FS_MOUNT_NORECOVERY 0x04000000
104 #define F2FS_MOUNT_ATGC 0x08000000
105 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
106 #define F2FS_MOUNT_GC_MERGE 0x20000000
107 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
109 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
110 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
111 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
112 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
114 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
115 typecheck(unsigned long long, b) && \
116 ((long long)((a) - (b)) > 0))
118 typedef u32 block_t; /*
119 * should not change u32, since it is the on-disk block
120 * address format, __le32.
124 #define COMPRESS_EXT_NUM 16
127 * An implementation of an rwsem that is explicitly unfair to readers. This
128 * prevents priority inversion when a low-priority reader acquires the read lock
129 * while sleeping on the write lock but the write lock is needed by
130 * higher-priority clients.
134 struct rw_semaphore internal_rwsem;
135 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
136 wait_queue_head_t read_waiters;
140 struct f2fs_mount_info {
142 int write_io_size_bits; /* Write IO size bits */
143 block_t root_reserved_blocks; /* root reserved blocks */
144 kuid_t s_resuid; /* reserved blocks for uid */
145 kgid_t s_resgid; /* reserved blocks for gid */
146 int active_logs; /* # of active logs */
147 int inline_xattr_size; /* inline xattr size */
148 #ifdef CONFIG_F2FS_FAULT_INJECTION
149 struct f2fs_fault_info fault_info; /* For fault injection */
152 /* Names of quota files with journalled quota */
153 char *s_qf_names[MAXQUOTAS];
154 int s_jquota_fmt; /* Format of quota to use */
156 /* For which write hints are passed down to block layer */
158 int alloc_mode; /* segment allocation policy */
159 int fsync_mode; /* fsync policy */
160 int fs_mode; /* fs mode: LFS or ADAPTIVE */
161 int bggc_mode; /* bggc mode: off, on or sync */
163 * discard command's offset/size should
164 * be aligned to this unit: block,
167 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
168 block_t unusable_cap_perc; /* percentage for cap */
169 block_t unusable_cap; /* Amount of space allowed to be
170 * unusable when disabling checkpoint
173 /* For compression */
174 unsigned char compress_algorithm; /* algorithm type */
175 unsigned char compress_log_size; /* cluster log size */
176 unsigned char compress_level; /* compress level */
177 bool compress_chksum; /* compressed data chksum */
178 unsigned char compress_ext_cnt; /* extension count */
179 unsigned char nocompress_ext_cnt; /* nocompress extension count */
180 int compress_mode; /* compression mode */
181 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
182 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
185 #define F2FS_FEATURE_ENCRYPT 0x0001
186 #define F2FS_FEATURE_BLKZONED 0x0002
187 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
188 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
189 #define F2FS_FEATURE_PRJQUOTA 0x0010
190 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
191 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
192 #define F2FS_FEATURE_QUOTA_INO 0x0080
193 #define F2FS_FEATURE_INODE_CRTIME 0x0100
194 #define F2FS_FEATURE_LOST_FOUND 0x0200
195 #define F2FS_FEATURE_VERITY 0x0400
196 #define F2FS_FEATURE_SB_CHKSUM 0x0800
197 #define F2FS_FEATURE_CASEFOLD 0x1000
198 #define F2FS_FEATURE_COMPRESSION 0x2000
199 #define F2FS_FEATURE_RO 0x4000
201 #define __F2FS_HAS_FEATURE(raw_super, mask) \
202 ((raw_super->feature & cpu_to_le32(mask)) != 0)
203 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
204 #define F2FS_SET_FEATURE(sbi, mask) \
205 (sbi->raw_super->feature |= cpu_to_le32(mask))
206 #define F2FS_CLEAR_FEATURE(sbi, mask) \
207 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
210 * Default values for user and/or group using reserved blocks
212 #define F2FS_DEF_RESUID 0
213 #define F2FS_DEF_RESGID 0
216 * For checkpoint manager
223 #define CP_UMOUNT 0x00000001
224 #define CP_FASTBOOT 0x00000002
225 #define CP_SYNC 0x00000004
226 #define CP_RECOVERY 0x00000008
227 #define CP_DISCARD 0x00000010
228 #define CP_TRIMMED 0x00000020
229 #define CP_PAUSE 0x00000040
230 #define CP_RESIZE 0x00000080
232 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
233 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
234 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
235 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
236 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
237 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
238 #define DEF_CP_INTERVAL 60 /* 60 secs */
239 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
240 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
241 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
242 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
252 * indicate meta/data type
261 DATA_GENERIC, /* check range only */
262 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
263 DATA_GENERIC_ENHANCE_READ, /*
264 * strong check on range and segment
265 * bitmap but no warning due to race
266 * condition of read on truncated area
272 /* for the list of ino */
274 ORPHAN_INO, /* for orphan ino list */
275 APPEND_INO, /* for append ino list */
276 UPDATE_INO, /* for update ino list */
277 TRANS_DIR_INO, /* for trasactions dir ino list */
278 FLUSH_INO, /* for multiple device flushing */
279 MAX_INO_ENTRY, /* max. list */
283 struct list_head list; /* list head */
284 nid_t ino; /* inode number */
285 unsigned int dirty_device; /* dirty device bitmap */
288 /* for the list of inodes to be GCed */
290 struct list_head list; /* list head */
291 struct inode *inode; /* vfs inode pointer */
294 struct fsync_node_entry {
295 struct list_head list; /* list head */
296 struct page *page; /* warm node page pointer */
297 unsigned int seq_id; /* sequence id */
301 struct completion wait; /* completion for checkpoint done */
302 struct llist_node llnode; /* llist_node to be linked in wait queue */
303 int ret; /* return code of checkpoint */
304 ktime_t queue_time; /* request queued time */
307 struct ckpt_req_control {
308 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
309 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
310 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
311 atomic_t issued_ckpt; /* # of actually issued ckpts */
312 atomic_t total_ckpt; /* # of total ckpts */
313 atomic_t queued_ckpt; /* # of queued ckpts */
314 struct llist_head issue_list; /* list for command issue */
315 spinlock_t stat_lock; /* lock for below checkpoint time stats */
316 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
317 unsigned int peak_time; /* peak wait time in msec until now */
320 /* for the bitmap indicate blocks to be discarded */
321 struct discard_entry {
322 struct list_head list; /* list head */
323 block_t start_blkaddr; /* start blockaddr of current segment */
324 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
327 /* default discard granularity of inner discard thread, unit: block count */
328 #define DEFAULT_DISCARD_GRANULARITY 16
330 /* max discard pend list number */
331 #define MAX_PLIST_NUM 512
332 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
333 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
336 D_PREP, /* initial */
337 D_PARTIAL, /* partially submitted */
338 D_SUBMIT, /* all submitted */
339 D_DONE, /* finished */
342 struct discard_info {
343 block_t lstart; /* logical start address */
344 block_t len; /* length */
345 block_t start; /* actual start address in dev */
349 struct rb_node rb_node; /* rb node located in rb-tree */
352 block_t lstart; /* logical start address */
353 block_t len; /* length */
354 block_t start; /* actual start address in dev */
356 struct discard_info di; /* discard info */
359 struct list_head list; /* command list */
360 struct completion wait; /* compleation */
361 struct block_device *bdev; /* bdev */
362 unsigned short ref; /* reference count */
363 unsigned char state; /* state */
364 unsigned char queued; /* queued discard */
365 int error; /* bio error */
366 spinlock_t lock; /* for state/bio_ref updating */
367 unsigned short bio_ref; /* bio reference count */
378 struct discard_policy {
379 int type; /* type of discard */
380 unsigned int min_interval; /* used for candidates exist */
381 unsigned int mid_interval; /* used for device busy */
382 unsigned int max_interval; /* used for candidates not exist */
383 unsigned int max_requests; /* # of discards issued per round */
384 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
385 bool io_aware; /* issue discard in idle time */
386 bool sync; /* submit discard with REQ_SYNC flag */
387 bool ordered; /* issue discard by lba order */
388 bool timeout; /* discard timeout for put_super */
389 unsigned int granularity; /* discard granularity */
392 struct discard_cmd_control {
393 struct task_struct *f2fs_issue_discard; /* discard thread */
394 struct list_head entry_list; /* 4KB discard entry list */
395 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
396 struct list_head wait_list; /* store on-flushing entries */
397 struct list_head fstrim_list; /* in-flight discard from fstrim */
398 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
399 unsigned int discard_wake; /* to wake up discard thread */
400 struct mutex cmd_lock;
401 unsigned int nr_discards; /* # of discards in the list */
402 unsigned int max_discards; /* max. discards to be issued */
403 unsigned int max_discard_request; /* max. discard request per round */
404 unsigned int min_discard_issue_time; /* min. interval between discard issue */
405 unsigned int mid_discard_issue_time; /* mid. interval between discard issue */
406 unsigned int max_discard_issue_time; /* max. interval between discard issue */
407 unsigned int discard_granularity; /* discard granularity */
408 unsigned int undiscard_blks; /* # of undiscard blocks */
409 unsigned int next_pos; /* next discard position */
410 atomic_t issued_discard; /* # of issued discard */
411 atomic_t queued_discard; /* # of queued discard */
412 atomic_t discard_cmd_cnt; /* # of cached cmd count */
413 struct rb_root_cached root; /* root of discard rb-tree */
414 bool rbtree_check; /* config for consistence check */
417 /* for the list of fsync inodes, used only during recovery */
418 struct fsync_inode_entry {
419 struct list_head list; /* list head */
420 struct inode *inode; /* vfs inode pointer */
421 block_t blkaddr; /* block address locating the last fsync */
422 block_t last_dentry; /* block address locating the last dentry */
425 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
426 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
428 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
429 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
430 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
431 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
433 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
434 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
436 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
438 int before = nats_in_cursum(journal);
440 journal->n_nats = cpu_to_le16(before + i);
444 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
446 int before = sits_in_cursum(journal);
448 journal->n_sits = cpu_to_le16(before + i);
452 static inline bool __has_cursum_space(struct f2fs_journal *journal,
455 if (type == NAT_JOURNAL)
456 return size <= MAX_NAT_JENTRIES(journal);
457 return size <= MAX_SIT_JENTRIES(journal);
460 /* for inline stuff */
461 #define DEF_INLINE_RESERVED_SIZE 1
462 static inline int get_extra_isize(struct inode *inode);
463 static inline int get_inline_xattr_addrs(struct inode *inode);
464 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
465 (CUR_ADDRS_PER_INODE(inode) - \
466 get_inline_xattr_addrs(inode) - \
467 DEF_INLINE_RESERVED_SIZE))
470 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
471 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
473 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
474 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), 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)))
481 * For INODE and NODE manager
483 /* for directory operations */
485 struct f2fs_filename {
487 * The filename the user specified. This is NULL for some
488 * filesystem-internal operations, e.g. converting an inline directory
489 * to a non-inline one, or roll-forward recovering an encrypted dentry.
491 const struct qstr *usr_fname;
494 * The on-disk filename. For encrypted directories, this is encrypted.
495 * This may be NULL for lookups in an encrypted dir without the key.
497 struct fscrypt_str disk_name;
499 /* The dirhash of this filename */
502 #ifdef CONFIG_FS_ENCRYPTION
504 * For lookups in encrypted directories: either the buffer backing
505 * disk_name, or a buffer that holds the decoded no-key name.
507 struct fscrypt_str crypto_buf;
509 #if IS_ENABLED(CONFIG_UNICODE)
511 * For casefolded directories: the casefolded name, but it's left NULL
512 * if the original name is not valid Unicode, if the directory is both
513 * casefolded and encrypted and its encryption key is unavailable, or if
514 * the filesystem is doing an internal operation where usr_fname is also
515 * NULL. In all these cases we fall back to treating the name as an
516 * opaque byte sequence.
518 struct fscrypt_str cf_name;
522 struct f2fs_dentry_ptr {
525 struct f2fs_dir_entry *dentry;
526 __u8 (*filename)[F2FS_SLOT_LEN];
531 static inline void make_dentry_ptr_block(struct inode *inode,
532 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
535 d->max = NR_DENTRY_IN_BLOCK;
536 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
537 d->bitmap = t->dentry_bitmap;
538 d->dentry = t->dentry;
539 d->filename = t->filename;
542 static inline void make_dentry_ptr_inline(struct inode *inode,
543 struct f2fs_dentry_ptr *d, void *t)
545 int entry_cnt = NR_INLINE_DENTRY(inode);
546 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
547 int reserved_size = INLINE_RESERVED_SIZE(inode);
551 d->nr_bitmap = bitmap_size;
553 d->dentry = t + bitmap_size + reserved_size;
554 d->filename = t + bitmap_size + reserved_size +
555 SIZE_OF_DIR_ENTRY * entry_cnt;
559 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
560 * as its node offset to distinguish from index node blocks.
561 * But some bits are used to mark the node block.
563 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
566 ALLOC_NODE, /* allocate a new node page if needed */
567 LOOKUP_NODE, /* look up a node without readahead */
569 * look up a node with readahead called
574 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
576 /* congestion wait timeout value, default: 20ms */
577 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
579 /* maximum retry quota flush count */
580 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
582 /* maximum retry of EIO'ed meta page */
583 #define MAX_RETRY_META_PAGE_EIO 100
585 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
587 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
589 /* dirty segments threshold for triggering CP */
590 #define DEFAULT_DIRTY_THRESHOLD 4
592 /* for in-memory extent cache entry */
593 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
595 /* number of extent info in extent cache we try to shrink */
596 #define EXTENT_CACHE_SHRINK_NUMBER 128
598 #define RECOVERY_MAX_RA_BLOCKS BIO_MAX_VECS
599 #define RECOVERY_MIN_RA_BLOCKS 1
602 struct rb_node rb_node; /* rb node located in rb-tree */
605 unsigned int ofs; /* start offset of the entry */
606 unsigned int len; /* length of the entry */
608 unsigned long long key; /* 64-bits key */
613 unsigned int fofs; /* start offset in a file */
614 unsigned int len; /* length of the extent */
615 u32 blk; /* start block address of the extent */
616 #ifdef CONFIG_F2FS_FS_COMPRESSION
617 unsigned int c_len; /* physical extent length of compressed blocks */
622 struct rb_node rb_node; /* rb node located in rb-tree */
623 struct extent_info ei; /* extent info */
624 struct list_head list; /* node in global extent list of sbi */
625 struct extent_tree *et; /* extent tree pointer */
629 nid_t ino; /* inode number */
630 struct rb_root_cached root; /* root of extent info rb-tree */
631 struct extent_node *cached_en; /* recently accessed extent node */
632 struct extent_info largest; /* largested extent info */
633 struct list_head list; /* to be used by sbi->zombie_list */
634 rwlock_t lock; /* protect extent info rb-tree */
635 atomic_t node_cnt; /* # of extent node in rb-tree*/
636 bool largest_updated; /* largest extent updated */
640 * This structure is taken from ext4_map_blocks.
642 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
644 #define F2FS_MAP_NEW (1 << BH_New)
645 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
646 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
647 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
650 struct f2fs_map_blocks {
651 struct block_device *m_bdev; /* for multi-device dio */
655 unsigned int m_flags;
656 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
657 pgoff_t *m_next_extent; /* point to next possible extent */
659 bool m_may_create; /* indicate it is from write path */
660 bool m_multidev_dio; /* indicate it allows multi-device dio */
663 /* for flag in get_data_block */
665 F2FS_GET_BLOCK_DEFAULT,
666 F2FS_GET_BLOCK_FIEMAP,
669 F2FS_GET_BLOCK_PRE_DIO,
670 F2FS_GET_BLOCK_PRE_AIO,
671 F2FS_GET_BLOCK_PRECACHE,
675 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
677 #define FADVISE_COLD_BIT 0x01
678 #define FADVISE_LOST_PINO_BIT 0x02
679 #define FADVISE_ENCRYPT_BIT 0x04
680 #define FADVISE_ENC_NAME_BIT 0x08
681 #define FADVISE_KEEP_SIZE_BIT 0x10
682 #define FADVISE_HOT_BIT 0x20
683 #define FADVISE_VERITY_BIT 0x40
684 #define FADVISE_TRUNC_BIT 0x80
686 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
688 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
689 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
690 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
692 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
693 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
694 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
696 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
697 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
699 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
700 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
702 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
703 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
705 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
706 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
707 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
709 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
710 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
712 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
713 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
714 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
716 #define DEF_DIR_LEVEL 0
724 /* used for f2fs_inode_info->flags */
726 FI_NEW_INODE, /* indicate newly allocated inode */
727 FI_DIRTY_INODE, /* indicate inode is dirty or not */
728 FI_AUTO_RECOVER, /* indicate inode is recoverable */
729 FI_DIRTY_DIR, /* indicate directory has dirty pages */
730 FI_INC_LINK, /* need to increment i_nlink */
731 FI_ACL_MODE, /* indicate acl mode */
732 FI_NO_ALLOC, /* should not allocate any blocks */
733 FI_FREE_NID, /* free allocated nide */
734 FI_NO_EXTENT, /* not to use the extent cache */
735 FI_INLINE_XATTR, /* used for inline xattr */
736 FI_INLINE_DATA, /* used for inline data*/
737 FI_INLINE_DENTRY, /* used for inline dentry */
738 FI_APPEND_WRITE, /* inode has appended data */
739 FI_UPDATE_WRITE, /* inode has in-place-update data */
740 FI_NEED_IPU, /* used for ipu per file */
741 FI_ATOMIC_FILE, /* indicate atomic file */
742 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
743 FI_VOLATILE_FILE, /* indicate volatile file */
744 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
745 FI_DROP_CACHE, /* drop dirty page cache */
746 FI_DATA_EXIST, /* indicate data exists */
747 FI_INLINE_DOTS, /* indicate inline dot dentries */
748 FI_SKIP_WRITES, /* should skip data page writeback */
749 FI_OPU_WRITE, /* used for opu per file */
750 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
751 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
752 FI_HOT_DATA, /* indicate file is hot */
753 FI_EXTRA_ATTR, /* indicate file has extra attribute */
754 FI_PROJ_INHERIT, /* indicate file inherits projectid */
755 FI_PIN_FILE, /* indicate file should not be gced */
756 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
757 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
758 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
759 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
760 FI_MMAP_FILE, /* indicate file was mmapped */
761 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
762 FI_COMPRESS_RELEASED, /* compressed blocks were released */
763 FI_ALIGNED_WRITE, /* enable aligned write */
764 FI_MAX, /* max flag, never be used */
767 struct f2fs_inode_info {
768 struct inode vfs_inode; /* serve a vfs inode */
769 unsigned long i_flags; /* keep an inode flags for ioctl */
770 unsigned char i_advise; /* use to give file attribute hints */
771 unsigned char i_dir_level; /* use for dentry level for large dir */
772 unsigned int i_current_depth; /* only for directory depth */
773 /* for gc failure statistic */
774 unsigned int i_gc_failures[MAX_GC_FAILURE];
775 unsigned int i_pino; /* parent inode number */
776 umode_t i_acl_mode; /* keep file acl mode temporarily */
778 /* Use below internally in f2fs*/
779 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
780 struct f2fs_rwsem i_sem; /* protect fi info */
781 atomic_t dirty_pages; /* # of dirty pages */
782 f2fs_hash_t chash; /* hash value of given file name */
783 unsigned int clevel; /* maximum level of given file name */
784 struct task_struct *task; /* lookup and create consistency */
785 struct task_struct *cp_task; /* separate cp/wb IO stats*/
786 nid_t i_xattr_nid; /* node id that contains xattrs */
787 loff_t last_disk_size; /* lastly written file size */
788 spinlock_t i_size_lock; /* protect last_disk_size */
791 struct dquot *i_dquot[MAXQUOTAS];
793 /* quota space reservation, managed internally by quota code */
794 qsize_t i_reserved_quota;
796 struct list_head dirty_list; /* dirty list for dirs and files */
797 struct list_head gdirty_list; /* linked in global dirty list */
798 struct list_head inmem_ilist; /* list for inmem inodes */
799 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
800 struct task_struct *inmem_task; /* store inmemory task */
801 struct mutex inmem_lock; /* lock for inmemory pages */
802 struct extent_tree *extent_tree; /* cached extent_tree entry */
804 /* avoid racing between foreground op and gc */
805 struct f2fs_rwsem i_gc_rwsem[2];
806 struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
808 int i_extra_isize; /* size of extra space located in i_addr */
809 kprojid_t i_projid; /* id for project quota */
810 int i_inline_xattr_size; /* inline xattr size */
811 struct timespec64 i_crtime; /* inode creation time */
812 struct timespec64 i_disk_time[4];/* inode disk times */
814 /* for file compress */
815 atomic_t i_compr_blocks; /* # of compressed blocks */
816 unsigned char i_compress_algorithm; /* algorithm type */
817 unsigned char i_log_cluster_size; /* log of cluster size */
818 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
819 unsigned short i_compress_flag; /* compress flag */
820 unsigned int i_cluster_size; /* cluster size */
823 static inline void get_extent_info(struct extent_info *ext,
824 struct f2fs_extent *i_ext)
826 ext->fofs = le32_to_cpu(i_ext->fofs);
827 ext->blk = le32_to_cpu(i_ext->blk);
828 ext->len = le32_to_cpu(i_ext->len);
831 static inline void set_raw_extent(struct extent_info *ext,
832 struct f2fs_extent *i_ext)
834 i_ext->fofs = cpu_to_le32(ext->fofs);
835 i_ext->blk = cpu_to_le32(ext->blk);
836 i_ext->len = cpu_to_le32(ext->len);
839 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
840 u32 blk, unsigned int len)
845 #ifdef CONFIG_F2FS_FS_COMPRESSION
850 static inline bool __is_discard_mergeable(struct discard_info *back,
851 struct discard_info *front, unsigned int max_len)
853 return (back->lstart + back->len == front->lstart) &&
854 (back->len + front->len <= max_len);
857 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
858 struct discard_info *back, unsigned int max_len)
860 return __is_discard_mergeable(back, cur, max_len);
863 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
864 struct discard_info *front, unsigned int max_len)
866 return __is_discard_mergeable(cur, front, max_len);
869 static inline bool __is_extent_mergeable(struct extent_info *back,
870 struct extent_info *front)
872 #ifdef CONFIG_F2FS_FS_COMPRESSION
873 if (back->c_len && back->len != back->c_len)
875 if (front->c_len && front->len != front->c_len)
878 return (back->fofs + back->len == front->fofs &&
879 back->blk + back->len == front->blk);
882 static inline bool __is_back_mergeable(struct extent_info *cur,
883 struct extent_info *back)
885 return __is_extent_mergeable(back, cur);
888 static inline bool __is_front_mergeable(struct extent_info *cur,
889 struct extent_info *front)
891 return __is_extent_mergeable(cur, front);
894 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
895 static inline void __try_update_largest_extent(struct extent_tree *et,
896 struct extent_node *en)
898 if (en->ei.len > et->largest.len) {
899 et->largest = en->ei;
900 et->largest_updated = true;
905 * For free nid management
908 FREE_NID, /* newly added to free nid list */
909 PREALLOC_NID, /* it is preallocated */
920 struct f2fs_nm_info {
921 block_t nat_blkaddr; /* base disk address of NAT */
922 nid_t max_nid; /* maximum possible node ids */
923 nid_t available_nids; /* # of available node ids */
924 nid_t next_scan_nid; /* the next nid to be scanned */
925 nid_t max_rf_node_blocks; /* max # of nodes for recovery */
926 unsigned int ram_thresh; /* control the memory footprint */
927 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
928 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
930 /* NAT cache management */
931 struct radix_tree_root nat_root;/* root of the nat entry cache */
932 struct radix_tree_root nat_set_root;/* root of the nat set cache */
933 struct f2fs_rwsem nat_tree_lock; /* protect nat entry tree */
934 struct list_head nat_entries; /* cached nat entry list (clean) */
935 spinlock_t nat_list_lock; /* protect clean nat entry list */
936 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
937 unsigned int nat_blocks; /* # of nat blocks */
939 /* free node ids management */
940 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
941 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
942 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
943 spinlock_t nid_list_lock; /* protect nid lists ops */
944 struct mutex build_lock; /* lock for build free nids */
945 unsigned char **free_nid_bitmap;
946 unsigned char *nat_block_bitmap;
947 unsigned short *free_nid_count; /* free nid count of NAT block */
950 char *nat_bitmap; /* NAT bitmap pointer */
952 unsigned int nat_bits_blocks; /* # of nat bits blocks */
953 unsigned char *nat_bits; /* NAT bits blocks */
954 unsigned char *full_nat_bits; /* full NAT pages */
955 unsigned char *empty_nat_bits; /* empty NAT pages */
956 #ifdef CONFIG_F2FS_CHECK_FS
957 char *nat_bitmap_mir; /* NAT bitmap mirror */
959 int bitmap_size; /* bitmap size */
963 * this structure is used as one of function parameters.
964 * all the information are dedicated to a given direct node block determined
965 * by the data offset in a file.
967 struct dnode_of_data {
968 struct inode *inode; /* vfs inode pointer */
969 struct page *inode_page; /* its inode page, NULL is possible */
970 struct page *node_page; /* cached direct node page */
971 nid_t nid; /* node id of the direct node block */
972 unsigned int ofs_in_node; /* data offset in the node page */
973 bool inode_page_locked; /* inode page is locked or not */
974 bool node_changed; /* is node block changed */
975 char cur_level; /* level of hole node page */
976 char max_level; /* level of current page located */
977 block_t data_blkaddr; /* block address of the node block */
980 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
981 struct page *ipage, struct page *npage, nid_t nid)
983 memset(dn, 0, sizeof(*dn));
985 dn->inode_page = ipage;
986 dn->node_page = npage;
993 * By default, there are 6 active log areas across the whole main area.
994 * When considering hot and cold data separation to reduce cleaning overhead,
995 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
997 * In the current design, you should not change the numbers intentionally.
998 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
999 * logs individually according to the underlying devices. (default: 6)
1000 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
1001 * data and 8 for node logs.
1003 #define NR_CURSEG_DATA_TYPE (3)
1004 #define NR_CURSEG_NODE_TYPE (3)
1005 #define NR_CURSEG_INMEM_TYPE (2)
1006 #define NR_CURSEG_RO_TYPE (2)
1007 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
1008 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
1011 CURSEG_HOT_DATA = 0, /* directory entry blocks */
1012 CURSEG_WARM_DATA, /* data blocks */
1013 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
1014 CURSEG_HOT_NODE, /* direct node blocks of directory files */
1015 CURSEG_WARM_NODE, /* direct node blocks of normal files */
1016 CURSEG_COLD_NODE, /* indirect node blocks */
1017 NR_PERSISTENT_LOG, /* number of persistent log */
1018 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
1019 /* pinned file that needs consecutive block address */
1020 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
1021 NO_CHECK_TYPE, /* number of persistent & inmem log */
1025 struct completion wait;
1026 struct llist_node llnode;
1031 struct flush_cmd_control {
1032 struct task_struct *f2fs_issue_flush; /* flush thread */
1033 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1034 atomic_t issued_flush; /* # of issued flushes */
1035 atomic_t queued_flush; /* # of queued flushes */
1036 struct llist_head issue_list; /* list for command issue */
1037 struct llist_node *dispatch_list; /* list for command dispatch */
1040 struct f2fs_sm_info {
1041 struct sit_info *sit_info; /* whole segment information */
1042 struct free_segmap_info *free_info; /* free segment information */
1043 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1044 struct curseg_info *curseg_array; /* active segment information */
1046 struct f2fs_rwsem curseg_lock; /* for preventing curseg change */
1048 block_t seg0_blkaddr; /* block address of 0'th segment */
1049 block_t main_blkaddr; /* start block address of main area */
1050 block_t ssa_blkaddr; /* start block address of SSA area */
1052 unsigned int segment_count; /* total # of segments */
1053 unsigned int main_segments; /* # of segments in main area */
1054 unsigned int reserved_segments; /* # of reserved segments */
1055 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1056 unsigned int ovp_segments; /* # of overprovision segments */
1058 /* a threshold to reclaim prefree segments */
1059 unsigned int rec_prefree_segments;
1061 /* for batched trimming */
1062 unsigned int trim_sections; /* # of sections to trim */
1064 struct list_head sit_entry_set; /* sit entry set list */
1066 unsigned int ipu_policy; /* in-place-update policy */
1067 unsigned int min_ipu_util; /* in-place-update threshold */
1068 unsigned int min_fsync_blocks; /* threshold for fsync */
1069 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1070 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1071 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1073 /* for flush command control */
1074 struct flush_cmd_control *fcc_info;
1076 /* for discard command control */
1077 struct discard_cmd_control *dcc_info;
1084 * COUNT_TYPE for monitoring
1086 * f2fs monitors the number of several block types such as on-writeback,
1087 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1089 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1109 * The below are the page types of bios used in submit_bio().
1110 * The available types are:
1111 * DATA User data pages. It operates as async mode.
1112 * NODE Node pages. It operates as async mode.
1113 * META FS metadata pages such as SIT, NAT, CP.
1114 * NR_PAGE_TYPE The number of page types.
1115 * META_FLUSH Make sure the previous pages are written
1116 * with waiting the bio's completion
1117 * ... Only can be used with META.
1119 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1126 INMEM, /* the below types are used by tracepoints only. */
1135 HOT = 0, /* must be zero for meta bio */
1141 enum need_lock_type {
1147 enum cp_reason_type {
1163 APP_DIRECT_IO, /* app direct write IOs */
1164 APP_BUFFERED_IO, /* app buffered write IOs */
1165 APP_WRITE_IO, /* app write IOs */
1166 APP_MAPPED_IO, /* app mapped IOs */
1167 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1168 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1169 FS_META_IO, /* meta IOs from kworker/reclaimer */
1170 FS_GC_DATA_IO, /* data IOs from forground gc */
1171 FS_GC_NODE_IO, /* node IOs from forground gc */
1172 FS_CP_DATA_IO, /* data IOs from checkpoint */
1173 FS_CP_NODE_IO, /* node IOs from checkpoint */
1174 FS_CP_META_IO, /* meta IOs from checkpoint */
1177 APP_DIRECT_READ_IO, /* app direct read IOs */
1178 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1179 APP_READ_IO, /* app read IOs */
1180 APP_MAPPED_READ_IO, /* app mapped read IOs */
1181 FS_DATA_READ_IO, /* data read IOs */
1182 FS_GDATA_READ_IO, /* data read IOs from background gc */
1183 FS_CDATA_READ_IO, /* compressed data read IOs */
1184 FS_NODE_READ_IO, /* node read IOs */
1185 FS_META_READ_IO, /* meta read IOs */
1188 FS_DISCARD, /* discard */
1192 struct f2fs_io_info {
1193 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1194 nid_t ino; /* inode number */
1195 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1196 enum temp_type temp; /* contains HOT/WARM/COLD */
1197 int op; /* contains REQ_OP_ */
1198 int op_flags; /* req_flag_bits */
1199 block_t new_blkaddr; /* new block address to be written */
1200 block_t old_blkaddr; /* old block address before Cow */
1201 struct page *page; /* page to be written */
1202 struct page *encrypted_page; /* encrypted page */
1203 struct page *compressed_page; /* compressed page */
1204 struct list_head list; /* serialize IOs */
1205 bool submitted; /* indicate IO submission */
1206 int need_lock; /* indicate we need to lock cp_rwsem */
1207 bool in_list; /* indicate fio is in io_list */
1208 bool is_por; /* indicate IO is from recovery or not */
1209 bool retry; /* need to reallocate block address */
1210 int compr_blocks; /* # of compressed block addresses */
1211 bool encrypted; /* indicate file is encrypted */
1212 enum iostat_type io_type; /* io type */
1213 struct writeback_control *io_wbc; /* writeback control */
1214 struct bio **bio; /* bio for ipu */
1215 sector_t *last_block; /* last block number in bio */
1216 unsigned char version; /* version of the node */
1221 struct list_head list;
1224 #define is_read_io(rw) ((rw) == READ)
1225 struct f2fs_bio_info {
1226 struct f2fs_sb_info *sbi; /* f2fs superblock */
1227 struct bio *bio; /* bios to merge */
1228 sector_t last_block_in_bio; /* last block number */
1229 struct f2fs_io_info fio; /* store buffered io info. */
1230 struct f2fs_rwsem io_rwsem; /* blocking op for bio */
1231 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1232 struct list_head io_list; /* track fios */
1233 struct list_head bio_list; /* bio entry list head */
1234 struct f2fs_rwsem bio_list_lock; /* lock to protect bio entry list */
1237 #define FDEV(i) (sbi->devs[i])
1238 #define RDEV(i) (raw_super->devs[i])
1239 struct f2fs_dev_info {
1240 struct block_device *bdev;
1241 char path[MAX_PATH_LEN];
1242 unsigned int total_segments;
1245 #ifdef CONFIG_BLK_DEV_ZONED
1246 unsigned int nr_blkz; /* Total number of zones */
1247 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1248 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */
1253 DIR_INODE, /* for dirty dir inode */
1254 FILE_INODE, /* for dirty regular/symlink inode */
1255 DIRTY_META, /* for all dirtied inode metadata */
1256 ATOMIC_FILE, /* for all atomic files */
1260 /* for inner inode cache management */
1261 struct inode_management {
1262 struct radix_tree_root ino_root; /* ino entry array */
1263 spinlock_t ino_lock; /* for ino entry lock */
1264 struct list_head ino_list; /* inode list head */
1265 unsigned long ino_num; /* number of entries */
1269 struct atgc_management {
1270 bool atgc_enabled; /* ATGC is enabled or not */
1271 struct rb_root_cached root; /* root of victim rb-tree */
1272 struct list_head victim_list; /* linked with all victim entries */
1273 unsigned int victim_count; /* victim count in rb-tree */
1274 unsigned int candidate_ratio; /* candidate ratio */
1275 unsigned int max_candidate_count; /* max candidate count */
1276 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1277 unsigned long long age_threshold; /* age threshold */
1280 /* For s_flag in struct f2fs_sb_info */
1282 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1283 SBI_IS_CLOSE, /* specify unmounting */
1284 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1285 SBI_POR_DOING, /* recovery is doing or not */
1286 SBI_NEED_SB_WRITE, /* need to recover superblock */
1287 SBI_NEED_CP, /* need to checkpoint */
1288 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1289 SBI_IS_RECOVERED, /* recovered orphan/data */
1290 SBI_CP_DISABLED, /* CP was disabled last mount */
1291 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1292 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1293 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1294 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1295 SBI_IS_RESIZEFS, /* resizefs is in process */
1296 SBI_IS_FREEZING, /* freezefs is in process */
1305 UMOUNT_DISCARD_TIMEOUT,
1321 BGGC_MODE_ON, /* background gc is on */
1322 BGGC_MODE_OFF, /* background gc is off */
1324 * background gc is on, migrating blocks
1325 * like foreground gc
1330 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1331 FS_MODE_LFS, /* use lfs allocation only */
1332 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1333 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1337 WHINT_MODE_OFF, /* not pass down write hints */
1338 WHINT_MODE_USER, /* try to pass down hints given by users */
1339 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1343 ALLOC_MODE_DEFAULT, /* stay default */
1344 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1348 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1349 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1350 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1355 * automatically compress compression
1359 * automatical compression is disabled.
1360 * user can control the file compression
1366 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1367 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1368 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1371 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1372 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1373 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1376 * Layout of f2fs page.private:
1378 * Layout A: lowest bit should be 1
1379 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1380 * bit 0 PAGE_PRIVATE_NOT_POINTER
1381 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1382 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1383 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1384 * bit 4 PAGE_PRIVATE_INLINE_INODE
1385 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1386 * bit 6- f2fs private data
1388 * Layout B: lowest bit should be 0
1389 * page.private is a wrapped pointer.
1392 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1393 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1394 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1395 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1396 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1397 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1401 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1402 static inline bool page_private_##name(struct page *page) \
1404 return PagePrivate(page) && \
1405 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1406 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1409 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1410 static inline void set_page_private_##name(struct page *page) \
1412 if (!PagePrivate(page)) { \
1414 SetPagePrivate(page); \
1415 set_page_private(page, 0); \
1417 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1418 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1421 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1422 static inline void clear_page_private_##name(struct page *page) \
1424 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1425 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1426 set_page_private(page, 0); \
1427 if (PagePrivate(page)) { \
1428 ClearPagePrivate(page); \
1434 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1435 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1436 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1437 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1438 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1439 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1441 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1442 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1443 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1444 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1445 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1447 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1448 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1449 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1450 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1451 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1453 static inline unsigned long get_page_private_data(struct page *page)
1455 unsigned long data = page_private(page);
1457 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1459 return data >> PAGE_PRIVATE_MAX;
1462 static inline void set_page_private_data(struct page *page, unsigned long data)
1464 if (!PagePrivate(page)) {
1466 SetPagePrivate(page);
1467 set_page_private(page, 0);
1469 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1470 page_private(page) |= data << PAGE_PRIVATE_MAX;
1473 static inline void clear_page_private_data(struct page *page)
1475 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1476 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1477 set_page_private(page, 0);
1478 if (PagePrivate(page)) {
1479 ClearPagePrivate(page);
1485 /* For compression */
1486 enum compress_algorithm_type {
1494 enum compress_flag {
1499 #define COMPRESS_WATERMARK 20
1500 #define COMPRESS_PERCENT 20
1502 #define COMPRESS_DATA_RESERVED_SIZE 4
1503 struct compress_data {
1504 __le32 clen; /* compressed data size */
1505 __le32 chksum; /* compressed data chksum */
1506 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1507 u8 cdata[]; /* compressed data */
1510 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1512 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1514 #define COMPRESS_LEVEL_OFFSET 8
1516 /* compress context */
1517 struct compress_ctx {
1518 struct inode *inode; /* inode the context belong to */
1519 pgoff_t cluster_idx; /* cluster index number */
1520 unsigned int cluster_size; /* page count in cluster */
1521 unsigned int log_cluster_size; /* log of cluster size */
1522 struct page **rpages; /* pages store raw data in cluster */
1523 unsigned int nr_rpages; /* total page number in rpages */
1524 struct page **cpages; /* pages store compressed data in cluster */
1525 unsigned int nr_cpages; /* total page number in cpages */
1526 unsigned int valid_nr_cpages; /* valid page number in cpages */
1527 void *rbuf; /* virtual mapped address on rpages */
1528 struct compress_data *cbuf; /* virtual mapped address on cpages */
1529 size_t rlen; /* valid data length in rbuf */
1530 size_t clen; /* valid data length in cbuf */
1531 void *private; /* payload buffer for specified compression algorithm */
1532 void *private2; /* extra payload buffer */
1535 /* compress context for write IO path */
1536 struct compress_io_ctx {
1537 u32 magic; /* magic number to indicate page is compressed */
1538 struct inode *inode; /* inode the context belong to */
1539 struct page **rpages; /* pages store raw data in cluster */
1540 unsigned int nr_rpages; /* total page number in rpages */
1541 atomic_t pending_pages; /* in-flight compressed page count */
1544 /* Context for decompressing one cluster on the read IO path */
1545 struct decompress_io_ctx {
1546 u32 magic; /* magic number to indicate page is compressed */
1547 struct inode *inode; /* inode the context belong to */
1548 pgoff_t cluster_idx; /* cluster index number */
1549 unsigned int cluster_size; /* page count in cluster */
1550 unsigned int log_cluster_size; /* log of cluster size */
1551 struct page **rpages; /* pages store raw data in cluster */
1552 unsigned int nr_rpages; /* total page number in rpages */
1553 struct page **cpages; /* pages store compressed data in cluster */
1554 unsigned int nr_cpages; /* total page number in cpages */
1555 struct page **tpages; /* temp pages to pad holes in cluster */
1556 void *rbuf; /* virtual mapped address on rpages */
1557 struct compress_data *cbuf; /* virtual mapped address on cpages */
1558 size_t rlen; /* valid data length in rbuf */
1559 size_t clen; /* valid data length in cbuf */
1562 * The number of compressed pages remaining to be read in this cluster.
1563 * This is initially nr_cpages. It is decremented by 1 each time a page
1564 * has been read (or failed to be read). When it reaches 0, the cluster
1565 * is decompressed (or an error is reported).
1567 * If an error occurs before all the pages have been submitted for I/O,
1568 * then this will never reach 0. In this case the I/O submitter is
1569 * responsible for calling f2fs_decompress_end_io() instead.
1571 atomic_t remaining_pages;
1574 * Number of references to this decompress_io_ctx.
1576 * One reference is held for I/O completion. This reference is dropped
1577 * after the pagecache pages are updated and unlocked -- either after
1578 * decompression (and verity if enabled), or after an error.
1580 * In addition, each compressed page holds a reference while it is in a
1581 * bio. These references are necessary prevent compressed pages from
1582 * being freed while they are still in a bio.
1586 bool failed; /* IO error occurred before decompression? */
1587 bool need_verity; /* need fs-verity verification after decompression? */
1588 void *private; /* payload buffer for specified decompression algorithm */
1589 void *private2; /* extra payload buffer */
1590 struct work_struct verity_work; /* work to verify the decompressed pages */
1593 #define NULL_CLUSTER ((unsigned int)(~0))
1594 #define MIN_COMPRESS_LOG_SIZE 2
1595 #define MAX_COMPRESS_LOG_SIZE 8
1596 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1598 struct f2fs_sb_info {
1599 struct super_block *sb; /* pointer to VFS super block */
1600 struct proc_dir_entry *s_proc; /* proc entry */
1601 struct f2fs_super_block *raw_super; /* raw super block pointer */
1602 struct f2fs_rwsem sb_lock; /* lock for raw super block */
1603 int valid_super_block; /* valid super block no */
1604 unsigned long s_flag; /* flags for sbi */
1605 struct mutex writepages; /* mutex for writepages() */
1607 #ifdef CONFIG_BLK_DEV_ZONED
1608 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1609 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1612 /* for node-related operations */
1613 struct f2fs_nm_info *nm_info; /* node manager */
1614 struct inode *node_inode; /* cache node blocks */
1616 /* for segment-related operations */
1617 struct f2fs_sm_info *sm_info; /* segment manager */
1619 /* for bio operations */
1620 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1621 /* keep migration IO order for LFS mode */
1622 struct f2fs_rwsem io_order_lock;
1623 mempool_t *write_io_dummy; /* Dummy pages */
1624 pgoff_t metapage_eio_ofs; /* EIO page offset */
1625 int metapage_eio_cnt; /* EIO count */
1627 /* for checkpoint */
1628 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1629 int cur_cp_pack; /* remain current cp pack */
1630 spinlock_t cp_lock; /* for flag in ckpt */
1631 struct inode *meta_inode; /* cache meta blocks */
1632 struct f2fs_rwsem cp_global_sem; /* checkpoint procedure lock */
1633 struct f2fs_rwsem cp_rwsem; /* blocking FS operations */
1634 struct f2fs_rwsem node_write; /* locking node writes */
1635 struct f2fs_rwsem node_change; /* locking node change */
1636 wait_queue_head_t cp_wait;
1637 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1638 long interval_time[MAX_TIME]; /* to store thresholds */
1639 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1641 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1643 spinlock_t fsync_node_lock; /* for node entry lock */
1644 struct list_head fsync_node_list; /* node list head */
1645 unsigned int fsync_seg_id; /* sequence id */
1646 unsigned int fsync_node_num; /* number of node entries */
1648 /* for orphan inode, use 0'th array */
1649 unsigned int max_orphans; /* max orphan inodes */
1651 /* for inode management */
1652 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1653 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1654 struct mutex flush_lock; /* for flush exclusion */
1656 /* for extent tree cache */
1657 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1658 struct mutex extent_tree_lock; /* locking extent radix tree */
1659 struct list_head extent_list; /* lru list for shrinker */
1660 spinlock_t extent_lock; /* locking extent lru list */
1661 atomic_t total_ext_tree; /* extent tree count */
1662 struct list_head zombie_list; /* extent zombie tree list */
1663 atomic_t total_zombie_tree; /* extent zombie tree count */
1664 atomic_t total_ext_node; /* extent info count */
1666 /* basic filesystem units */
1667 unsigned int log_sectors_per_block; /* log2 sectors per block */
1668 unsigned int log_blocksize; /* log2 block size */
1669 unsigned int blocksize; /* block size */
1670 unsigned int root_ino_num; /* root inode number*/
1671 unsigned int node_ino_num; /* node inode number*/
1672 unsigned int meta_ino_num; /* meta inode number*/
1673 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1674 unsigned int blocks_per_seg; /* blocks per segment */
1675 unsigned int segs_per_sec; /* segments per section */
1676 unsigned int secs_per_zone; /* sections per zone */
1677 unsigned int total_sections; /* total section count */
1678 unsigned int total_node_count; /* total node block count */
1679 unsigned int total_valid_node_count; /* valid node block count */
1680 int dir_level; /* directory level */
1681 int readdir_ra; /* readahead inode in readdir */
1682 u64 max_io_bytes; /* max io bytes to merge IOs */
1684 block_t user_block_count; /* # of user blocks */
1685 block_t total_valid_block_count; /* # of valid blocks */
1686 block_t discard_blks; /* discard command candidats */
1687 block_t last_valid_block_count; /* for recovery */
1688 block_t reserved_blocks; /* configurable reserved blocks */
1689 block_t current_reserved_blocks; /* current reserved blocks */
1691 /* Additional tracking for no checkpoint mode */
1692 block_t unusable_block_count; /* # of blocks saved by last cp */
1694 unsigned int nquota_files; /* # of quota sysfile */
1695 struct f2fs_rwsem quota_sem; /* blocking cp for flags */
1697 /* # of pages, see count_type */
1698 atomic_t nr_pages[NR_COUNT_TYPE];
1699 /* # of allocated blocks */
1700 struct percpu_counter alloc_valid_block_count;
1701 /* # of node block writes as roll forward recovery */
1702 struct percpu_counter rf_node_block_count;
1704 /* writeback control */
1705 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1707 /* valid inode count */
1708 struct percpu_counter total_valid_inode_count;
1710 struct f2fs_mount_info mount_opt; /* mount options */
1712 /* for cleaning operations */
1713 struct f2fs_rwsem gc_lock; /*
1714 * semaphore for GC, avoid
1715 * race between GC and GC or CP
1717 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1718 struct atgc_management am; /* atgc management */
1719 unsigned int cur_victim_sec; /* current victim section num */
1720 unsigned int gc_mode; /* current GC state */
1721 unsigned int next_victim_seg[2]; /* next segment in victim section */
1722 spinlock_t gc_urgent_high_lock;
1723 bool gc_urgent_high_limited; /* indicates having limited trial count */
1724 unsigned int gc_urgent_high_remaining; /* remaining trial count for GC_URGENT_HIGH */
1726 /* for skip statistic */
1727 unsigned int atomic_files; /* # of opened atomic file */
1728 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1729 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1731 /* threshold for gc trials on pinned files */
1732 u64 gc_pin_file_threshold;
1733 struct f2fs_rwsem pin_sem;
1735 /* maximum # of trials to find a victim segment for SSR and GC */
1736 unsigned int max_victim_search;
1737 /* migration granularity of garbage collection, unit: segment */
1738 unsigned int migration_granularity;
1741 * for stat information.
1742 * one is for the LFS mode, and the other is for the SSR mode.
1744 #ifdef CONFIG_F2FS_STAT_FS
1745 struct f2fs_stat_info *stat_info; /* FS status information */
1746 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1747 unsigned int segment_count[2]; /* # of allocated segments */
1748 unsigned int block_count[2]; /* # of allocated blocks */
1749 atomic_t inplace_count; /* # of inplace update */
1750 atomic64_t total_hit_ext; /* # of lookup extent cache */
1751 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1752 atomic64_t read_hit_largest; /* # of hit largest extent node */
1753 atomic64_t read_hit_cached; /* # of hit cached extent node */
1754 atomic_t inline_xattr; /* # of inline_xattr inodes */
1755 atomic_t inline_inode; /* # of inline_data inodes */
1756 atomic_t inline_dir; /* # of inline_dentry inodes */
1757 atomic_t compr_inode; /* # of compressed inodes */
1758 atomic64_t compr_blocks; /* # of compressed blocks */
1759 atomic_t vw_cnt; /* # of volatile writes */
1760 atomic_t max_aw_cnt; /* max # of atomic writes */
1761 atomic_t max_vw_cnt; /* max # of volatile writes */
1762 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1763 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1764 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1766 spinlock_t stat_lock; /* lock for stat operations */
1768 /* to attach REQ_META|REQ_FUA flags */
1769 unsigned int data_io_flag;
1770 unsigned int node_io_flag;
1772 /* For sysfs suppport */
1773 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1774 struct completion s_kobj_unregister;
1776 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1777 struct completion s_stat_kobj_unregister;
1779 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1780 struct completion s_feature_list_kobj_unregister;
1782 /* For shrinker support */
1783 struct list_head s_list;
1784 struct mutex umount_mutex;
1785 unsigned int shrinker_run_no;
1787 /* For multi devices */
1788 int s_ndevs; /* number of devices */
1789 struct f2fs_dev_info *devs; /* for device list */
1790 unsigned int dirty_device; /* for checkpoint data flush */
1791 spinlock_t dev_lock; /* protect dirty_device */
1792 bool aligned_blksize; /* all devices has the same logical blksize */
1794 /* For write statistics */
1795 u64 sectors_written_start;
1798 /* Reference to checksum algorithm driver via cryptoapi */
1799 struct crypto_shash *s_chksum_driver;
1801 /* Precomputed FS UUID checksum for seeding other checksums */
1802 __u32 s_chksum_seed;
1804 struct workqueue_struct *post_read_wq; /* post read workqueue */
1806 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1807 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1809 /* For reclaimed segs statistics per each GC mode */
1810 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1811 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1813 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1815 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1816 int max_fragment_hole; /* max hole size for block fragmentation mode */
1818 #ifdef CONFIG_F2FS_FS_COMPRESSION
1819 struct kmem_cache *page_array_slab; /* page array entry */
1820 unsigned int page_array_slab_size; /* default page array slab size */
1822 /* For runtime compression statistics */
1823 u64 compr_written_block;
1824 u64 compr_saved_block;
1825 u32 compr_new_inode;
1827 /* For compressed block cache */
1828 struct inode *compress_inode; /* cache compressed blocks */
1829 unsigned int compress_percent; /* cache page percentage */
1830 unsigned int compress_watermark; /* cache page watermark */
1831 atomic_t compress_page_hit; /* cache hit count */
1834 #ifdef CONFIG_F2FS_IOSTAT
1835 /* For app/fs IO statistics */
1836 spinlock_t iostat_lock;
1837 unsigned long long rw_iostat[NR_IO_TYPE];
1838 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1840 unsigned long iostat_next_period;
1841 unsigned int iostat_period_ms;
1843 /* For io latency related statistics info in one iostat period */
1844 spinlock_t iostat_lat_lock;
1845 struct iostat_lat_info *iostat_io_lat;
1849 #ifdef CONFIG_F2FS_FAULT_INJECTION
1850 #define f2fs_show_injection_info(sbi, type) \
1851 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1852 KERN_INFO, sbi->sb->s_id, \
1853 f2fs_fault_name[type], \
1854 __func__, __builtin_return_address(0))
1855 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1857 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1859 if (!ffi->inject_rate)
1862 if (!IS_FAULT_SET(ffi, type))
1865 atomic_inc(&ffi->inject_ops);
1866 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1867 atomic_set(&ffi->inject_ops, 0);
1873 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1874 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1881 * Test if the mounted volume is a multi-device volume.
1882 * - For a single regular disk volume, sbi->s_ndevs is 0.
1883 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1884 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1886 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1888 return sbi->s_ndevs > 1;
1891 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1893 unsigned long now = jiffies;
1895 sbi->last_time[type] = now;
1897 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1898 if (type == REQ_TIME) {
1899 sbi->last_time[DISCARD_TIME] = now;
1900 sbi->last_time[GC_TIME] = now;
1904 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1906 unsigned long interval = sbi->interval_time[type] * HZ;
1908 return time_after(jiffies, sbi->last_time[type] + interval);
1911 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1914 unsigned long interval = sbi->interval_time[type] * HZ;
1915 unsigned int wait_ms = 0;
1918 delta = (sbi->last_time[type] + interval) - jiffies;
1920 wait_ms = jiffies_to_msecs(delta);
1928 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1929 const void *address, unsigned int length)
1932 struct shash_desc shash;
1937 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1939 desc.shash.tfm = sbi->s_chksum_driver;
1940 *(u32 *)desc.ctx = crc;
1942 err = crypto_shash_update(&desc.shash, address, length);
1945 return *(u32 *)desc.ctx;
1948 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1949 unsigned int length)
1951 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1954 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1955 void *buf, size_t buf_size)
1957 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1960 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1961 const void *address, unsigned int length)
1963 return __f2fs_crc32(sbi, crc, address, length);
1966 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1968 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1971 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1973 return sb->s_fs_info;
1976 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1978 return F2FS_SB(inode->i_sb);
1981 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1983 return F2FS_I_SB(mapping->host);
1986 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1988 return F2FS_M_SB(page_file_mapping(page));
1991 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1993 return (struct f2fs_super_block *)(sbi->raw_super);
1996 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1998 return (struct f2fs_checkpoint *)(sbi->ckpt);
2001 static inline struct f2fs_node *F2FS_NODE(struct page *page)
2003 return (struct f2fs_node *)page_address(page);
2006 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
2008 return &((struct f2fs_node *)page_address(page))->i;
2011 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
2013 return (struct f2fs_nm_info *)(sbi->nm_info);
2016 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
2018 return (struct f2fs_sm_info *)(sbi->sm_info);
2021 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
2023 return (struct sit_info *)(SM_I(sbi)->sit_info);
2026 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
2028 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
2031 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
2033 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
2036 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
2038 return sbi->meta_inode->i_mapping;
2041 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2043 return sbi->node_inode->i_mapping;
2046 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2048 return test_bit(type, &sbi->s_flag);
2051 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2053 set_bit(type, &sbi->s_flag);
2056 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2058 clear_bit(type, &sbi->s_flag);
2061 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2063 return le64_to_cpu(cp->checkpoint_ver);
2066 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2068 if (type < F2FS_MAX_QUOTAS)
2069 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2073 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2075 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2076 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2079 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2081 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2083 return ckpt_flags & f;
2086 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2088 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2091 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2093 unsigned int ckpt_flags;
2095 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2097 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2100 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2102 unsigned long flags;
2104 spin_lock_irqsave(&sbi->cp_lock, flags);
2105 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2106 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2109 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2111 unsigned int ckpt_flags;
2113 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2115 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2118 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2120 unsigned long flags;
2122 spin_lock_irqsave(&sbi->cp_lock, flags);
2123 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2124 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2127 #define init_f2fs_rwsem(sem) \
2129 static struct lock_class_key __key; \
2131 __init_f2fs_rwsem((sem), #sem, &__key); \
2134 static inline void __init_f2fs_rwsem(struct f2fs_rwsem *sem,
2135 const char *sem_name, struct lock_class_key *key)
2137 __init_rwsem(&sem->internal_rwsem, sem_name, key);
2138 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2139 init_waitqueue_head(&sem->read_waiters);
2143 static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
2145 return rwsem_is_locked(&sem->internal_rwsem);
2148 static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
2150 return rwsem_is_contended(&sem->internal_rwsem);
2153 static inline void f2fs_down_read(struct f2fs_rwsem *sem)
2155 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2156 wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
2158 down_read(&sem->internal_rwsem);
2162 static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
2164 return down_read_trylock(&sem->internal_rwsem);
2167 #ifdef CONFIG_DEBUG_LOCK_ALLOC
2168 static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
2170 down_read_nested(&sem->internal_rwsem, subclass);
2173 #define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
2176 static inline void f2fs_up_read(struct f2fs_rwsem *sem)
2178 up_read(&sem->internal_rwsem);
2181 static inline void f2fs_down_write(struct f2fs_rwsem *sem)
2183 down_write(&sem->internal_rwsem);
2186 static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
2188 return down_write_trylock(&sem->internal_rwsem);
2191 static inline void f2fs_up_write(struct f2fs_rwsem *sem)
2193 up_write(&sem->internal_rwsem);
2194 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2195 wake_up_all(&sem->read_waiters);
2199 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2201 f2fs_down_read(&sbi->cp_rwsem);
2204 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2206 if (time_to_inject(sbi, FAULT_LOCK_OP)) {
2207 f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
2210 return f2fs_down_read_trylock(&sbi->cp_rwsem);
2213 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2215 f2fs_up_read(&sbi->cp_rwsem);
2218 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2220 f2fs_down_write(&sbi->cp_rwsem);
2223 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2225 f2fs_up_write(&sbi->cp_rwsem);
2228 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2230 int reason = CP_SYNC;
2232 if (test_opt(sbi, FASTBOOT))
2233 reason = CP_FASTBOOT;
2234 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2239 static inline bool __remain_node_summaries(int reason)
2241 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2244 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2246 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2247 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2251 * Check whether the inode has blocks or not
2253 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2255 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2257 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2260 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2262 return ofs == XATTR_NODE_OFFSET;
2265 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2266 struct inode *inode, bool cap)
2270 if (!test_opt(sbi, RESERVE_ROOT))
2272 if (IS_NOQUOTA(inode))
2274 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2276 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2277 in_group_p(F2FS_OPTION(sbi).s_resgid))
2279 if (cap && capable(CAP_SYS_RESOURCE))
2284 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2285 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2286 struct inode *inode, blkcnt_t *count)
2288 blkcnt_t diff = 0, release = 0;
2289 block_t avail_user_block_count;
2292 ret = dquot_reserve_block(inode, *count);
2296 if (time_to_inject(sbi, FAULT_BLOCK)) {
2297 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2303 * let's increase this in prior to actual block count change in order
2304 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2306 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2308 spin_lock(&sbi->stat_lock);
2309 sbi->total_valid_block_count += (block_t)(*count);
2310 avail_user_block_count = sbi->user_block_count -
2311 sbi->current_reserved_blocks;
2313 if (!__allow_reserved_blocks(sbi, inode, true))
2314 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2316 if (F2FS_IO_ALIGNED(sbi))
2317 avail_user_block_count -= sbi->blocks_per_seg *
2318 SM_I(sbi)->additional_reserved_segments;
2320 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2321 if (avail_user_block_count > sbi->unusable_block_count)
2322 avail_user_block_count -= sbi->unusable_block_count;
2324 avail_user_block_count = 0;
2326 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2327 diff = sbi->total_valid_block_count - avail_user_block_count;
2332 sbi->total_valid_block_count -= diff;
2334 spin_unlock(&sbi->stat_lock);
2338 spin_unlock(&sbi->stat_lock);
2340 if (unlikely(release)) {
2341 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2342 dquot_release_reservation_block(inode, release);
2344 f2fs_i_blocks_write(inode, *count, true, true);
2348 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2350 dquot_release_reservation_block(inode, release);
2355 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2357 #define f2fs_err(sbi, fmt, ...) \
2358 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2359 #define f2fs_warn(sbi, fmt, ...) \
2360 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2361 #define f2fs_notice(sbi, fmt, ...) \
2362 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2363 #define f2fs_info(sbi, fmt, ...) \
2364 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2365 #define f2fs_debug(sbi, fmt, ...) \
2366 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2368 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2369 struct inode *inode,
2372 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2374 spin_lock(&sbi->stat_lock);
2375 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2376 sbi->total_valid_block_count -= (block_t)count;
2377 if (sbi->reserved_blocks &&
2378 sbi->current_reserved_blocks < sbi->reserved_blocks)
2379 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2380 sbi->current_reserved_blocks + count);
2381 spin_unlock(&sbi->stat_lock);
2382 if (unlikely(inode->i_blocks < sectors)) {
2383 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2385 (unsigned long long)inode->i_blocks,
2386 (unsigned long long)sectors);
2387 set_sbi_flag(sbi, SBI_NEED_FSCK);
2390 f2fs_i_blocks_write(inode, count, false, true);
2393 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2395 atomic_inc(&sbi->nr_pages[count_type]);
2397 if (count_type == F2FS_DIRTY_DENTS ||
2398 count_type == F2FS_DIRTY_NODES ||
2399 count_type == F2FS_DIRTY_META ||
2400 count_type == F2FS_DIRTY_QDATA ||
2401 count_type == F2FS_DIRTY_IMETA)
2402 set_sbi_flag(sbi, SBI_IS_DIRTY);
2405 static inline void inode_inc_dirty_pages(struct inode *inode)
2407 atomic_inc(&F2FS_I(inode)->dirty_pages);
2408 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2409 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2410 if (IS_NOQUOTA(inode))
2411 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2414 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2416 atomic_dec(&sbi->nr_pages[count_type]);
2419 static inline void inode_dec_dirty_pages(struct inode *inode)
2421 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2422 !S_ISLNK(inode->i_mode))
2425 atomic_dec(&F2FS_I(inode)->dirty_pages);
2426 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2427 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2428 if (IS_NOQUOTA(inode))
2429 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2432 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2434 return atomic_read(&sbi->nr_pages[count_type]);
2437 static inline int get_dirty_pages(struct inode *inode)
2439 return atomic_read(&F2FS_I(inode)->dirty_pages);
2442 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2444 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2445 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2446 sbi->log_blocks_per_seg;
2448 return segs / sbi->segs_per_sec;
2451 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2453 return sbi->total_valid_block_count;
2456 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2458 return sbi->discard_blks;
2461 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2463 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2465 /* return NAT or SIT bitmap */
2466 if (flag == NAT_BITMAP)
2467 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2468 else if (flag == SIT_BITMAP)
2469 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2474 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2476 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2479 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2481 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2482 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2485 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2486 offset = (flag == SIT_BITMAP) ?
2487 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2489 * if large_nat_bitmap feature is enabled, leave checksum
2490 * protection for all nat/sit bitmaps.
2492 return tmp_ptr + offset + sizeof(__le32);
2495 if (__cp_payload(sbi) > 0) {
2496 if (flag == NAT_BITMAP)
2497 return &ckpt->sit_nat_version_bitmap;
2499 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2501 offset = (flag == NAT_BITMAP) ?
2502 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2503 return tmp_ptr + offset;
2507 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2509 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2511 if (sbi->cur_cp_pack == 2)
2512 start_addr += sbi->blocks_per_seg;
2516 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2518 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2520 if (sbi->cur_cp_pack == 1)
2521 start_addr += sbi->blocks_per_seg;
2525 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2527 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2530 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2532 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2535 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2536 struct inode *inode, bool is_inode)
2538 block_t valid_block_count;
2539 unsigned int valid_node_count, user_block_count;
2544 err = dquot_alloc_inode(inode);
2549 err = dquot_reserve_block(inode, 1);
2554 if (time_to_inject(sbi, FAULT_BLOCK)) {
2555 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2559 spin_lock(&sbi->stat_lock);
2561 valid_block_count = sbi->total_valid_block_count +
2562 sbi->current_reserved_blocks + 1;
2564 if (!__allow_reserved_blocks(sbi, inode, false))
2565 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2567 if (F2FS_IO_ALIGNED(sbi))
2568 valid_block_count += sbi->blocks_per_seg *
2569 SM_I(sbi)->additional_reserved_segments;
2571 user_block_count = sbi->user_block_count;
2572 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2573 user_block_count -= sbi->unusable_block_count;
2575 if (unlikely(valid_block_count > user_block_count)) {
2576 spin_unlock(&sbi->stat_lock);
2580 valid_node_count = sbi->total_valid_node_count + 1;
2581 if (unlikely(valid_node_count > sbi->total_node_count)) {
2582 spin_unlock(&sbi->stat_lock);
2586 sbi->total_valid_node_count++;
2587 sbi->total_valid_block_count++;
2588 spin_unlock(&sbi->stat_lock);
2592 f2fs_mark_inode_dirty_sync(inode, true);
2594 f2fs_i_blocks_write(inode, 1, true, true);
2597 percpu_counter_inc(&sbi->alloc_valid_block_count);
2603 dquot_free_inode(inode);
2605 dquot_release_reservation_block(inode, 1);
2610 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2611 struct inode *inode, bool is_inode)
2613 spin_lock(&sbi->stat_lock);
2615 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2616 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2618 sbi->total_valid_node_count--;
2619 sbi->total_valid_block_count--;
2620 if (sbi->reserved_blocks &&
2621 sbi->current_reserved_blocks < sbi->reserved_blocks)
2622 sbi->current_reserved_blocks++;
2624 spin_unlock(&sbi->stat_lock);
2627 dquot_free_inode(inode);
2629 if (unlikely(inode->i_blocks == 0)) {
2630 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2632 (unsigned long long)inode->i_blocks);
2633 set_sbi_flag(sbi, SBI_NEED_FSCK);
2636 f2fs_i_blocks_write(inode, 1, false, true);
2640 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2642 return sbi->total_valid_node_count;
2645 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2647 percpu_counter_inc(&sbi->total_valid_inode_count);
2650 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2652 percpu_counter_dec(&sbi->total_valid_inode_count);
2655 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2657 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2660 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2661 pgoff_t index, bool for_write)
2665 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2667 page = find_get_page_flags(mapping, index,
2668 FGP_LOCK | FGP_ACCESSED);
2670 page = find_lock_page(mapping, index);
2674 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2675 f2fs_show_injection_info(F2FS_M_SB(mapping),
2682 return grab_cache_page(mapping, index);
2683 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2686 static inline struct page *f2fs_pagecache_get_page(
2687 struct address_space *mapping, pgoff_t index,
2688 int fgp_flags, gfp_t gfp_mask)
2690 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2691 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2695 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2698 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2700 char *src_kaddr = kmap(src);
2701 char *dst_kaddr = kmap(dst);
2703 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2708 static inline void f2fs_put_page(struct page *page, int unlock)
2714 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2720 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2723 f2fs_put_page(dn->node_page, 1);
2724 if (dn->inode_page && dn->node_page != dn->inode_page)
2725 f2fs_put_page(dn->inode_page, 0);
2726 dn->node_page = NULL;
2727 dn->inode_page = NULL;
2730 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2733 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2736 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2741 entry = kmem_cache_alloc(cachep, flags);
2743 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2747 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2748 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2751 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2753 if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
2754 f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
2758 return kmem_cache_alloc(cachep, flags);
2761 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2763 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2764 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2765 get_pages(sbi, F2FS_WB_CP_DATA) ||
2766 get_pages(sbi, F2FS_DIO_READ) ||
2767 get_pages(sbi, F2FS_DIO_WRITE))
2770 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2771 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2774 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2775 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2780 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2782 if (sbi->gc_mode == GC_URGENT_HIGH)
2785 if (is_inflight_io(sbi, type))
2788 if (sbi->gc_mode == GC_URGENT_MID)
2791 if (sbi->gc_mode == GC_URGENT_LOW &&
2792 (type == DISCARD_TIME || type == GC_TIME))
2795 return f2fs_time_over(sbi, type);
2798 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2799 unsigned long index, void *item)
2801 while (radix_tree_insert(root, index, item))
2805 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2807 static inline bool IS_INODE(struct page *page)
2809 struct f2fs_node *p = F2FS_NODE(page);
2811 return RAW_IS_INODE(p);
2814 static inline int offset_in_addr(struct f2fs_inode *i)
2816 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2817 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2820 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2822 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2825 static inline int f2fs_has_extra_attr(struct inode *inode);
2826 static inline block_t data_blkaddr(struct inode *inode,
2827 struct page *node_page, unsigned int offset)
2829 struct f2fs_node *raw_node;
2832 bool is_inode = IS_INODE(node_page);
2834 raw_node = F2FS_NODE(node_page);
2838 /* from GC path only */
2839 base = offset_in_addr(&raw_node->i);
2840 else if (f2fs_has_extra_attr(inode))
2841 base = get_extra_isize(inode);
2844 addr_array = blkaddr_in_node(raw_node);
2845 return le32_to_cpu(addr_array[base + offset]);
2848 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2850 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2853 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2858 mask = 1 << (7 - (nr & 0x07));
2859 return mask & *addr;
2862 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2867 mask = 1 << (7 - (nr & 0x07));
2871 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2876 mask = 1 << (7 - (nr & 0x07));
2880 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2886 mask = 1 << (7 - (nr & 0x07));
2892 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2898 mask = 1 << (7 - (nr & 0x07));
2904 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2909 mask = 1 << (7 - (nr & 0x07));
2914 * On-disk inode flags (f2fs_inode::i_flags)
2916 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2917 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2918 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2919 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2920 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2921 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2922 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2923 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2924 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2925 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2926 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2928 /* Flags that should be inherited by new inodes from their parent. */
2929 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2930 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2931 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2933 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2934 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2937 /* Flags that are appropriate for non-directories/regular files. */
2938 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2940 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2944 else if (S_ISREG(mode))
2945 return flags & F2FS_REG_FLMASK;
2947 return flags & F2FS_OTHER_FLMASK;
2950 static inline void __mark_inode_dirty_flag(struct inode *inode,
2954 case FI_INLINE_XATTR:
2955 case FI_INLINE_DATA:
2956 case FI_INLINE_DENTRY:
2962 case FI_INLINE_DOTS:
2964 case FI_COMPRESS_RELEASED:
2965 f2fs_mark_inode_dirty_sync(inode, true);
2969 static inline void set_inode_flag(struct inode *inode, int flag)
2971 set_bit(flag, F2FS_I(inode)->flags);
2972 __mark_inode_dirty_flag(inode, flag, true);
2975 static inline int is_inode_flag_set(struct inode *inode, int flag)
2977 return test_bit(flag, F2FS_I(inode)->flags);
2980 static inline void clear_inode_flag(struct inode *inode, int flag)
2982 clear_bit(flag, F2FS_I(inode)->flags);
2983 __mark_inode_dirty_flag(inode, flag, false);
2986 static inline bool f2fs_verity_in_progress(struct inode *inode)
2988 return IS_ENABLED(CONFIG_FS_VERITY) &&
2989 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2992 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2994 F2FS_I(inode)->i_acl_mode = mode;
2995 set_inode_flag(inode, FI_ACL_MODE);
2996 f2fs_mark_inode_dirty_sync(inode, false);
2999 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
3005 f2fs_mark_inode_dirty_sync(inode, true);
3008 static inline void f2fs_i_blocks_write(struct inode *inode,
3009 block_t diff, bool add, bool claim)
3011 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3012 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3014 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
3017 dquot_claim_block(inode, diff);
3019 dquot_alloc_block_nofail(inode, diff);
3021 dquot_free_block(inode, diff);
3024 f2fs_mark_inode_dirty_sync(inode, true);
3025 if (clean || recover)
3026 set_inode_flag(inode, FI_AUTO_RECOVER);
3029 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
3031 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3032 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3034 if (i_size_read(inode) == i_size)
3037 i_size_write(inode, i_size);
3038 f2fs_mark_inode_dirty_sync(inode, true);
3039 if (clean || recover)
3040 set_inode_flag(inode, FI_AUTO_RECOVER);
3043 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
3045 F2FS_I(inode)->i_current_depth = depth;
3046 f2fs_mark_inode_dirty_sync(inode, true);
3049 static inline void f2fs_i_gc_failures_write(struct inode *inode,
3052 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
3053 f2fs_mark_inode_dirty_sync(inode, true);
3056 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
3058 F2FS_I(inode)->i_xattr_nid = xnid;
3059 f2fs_mark_inode_dirty_sync(inode, true);
3062 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
3064 F2FS_I(inode)->i_pino = pino;
3065 f2fs_mark_inode_dirty_sync(inode, true);
3068 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
3070 struct f2fs_inode_info *fi = F2FS_I(inode);
3072 if (ri->i_inline & F2FS_INLINE_XATTR)
3073 set_bit(FI_INLINE_XATTR, fi->flags);
3074 if (ri->i_inline & F2FS_INLINE_DATA)
3075 set_bit(FI_INLINE_DATA, fi->flags);
3076 if (ri->i_inline & F2FS_INLINE_DENTRY)
3077 set_bit(FI_INLINE_DENTRY, fi->flags);
3078 if (ri->i_inline & F2FS_DATA_EXIST)
3079 set_bit(FI_DATA_EXIST, fi->flags);
3080 if (ri->i_inline & F2FS_INLINE_DOTS)
3081 set_bit(FI_INLINE_DOTS, fi->flags);
3082 if (ri->i_inline & F2FS_EXTRA_ATTR)
3083 set_bit(FI_EXTRA_ATTR, fi->flags);
3084 if (ri->i_inline & F2FS_PIN_FILE)
3085 set_bit(FI_PIN_FILE, fi->flags);
3086 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
3087 set_bit(FI_COMPRESS_RELEASED, fi->flags);
3090 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
3094 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
3095 ri->i_inline |= F2FS_INLINE_XATTR;
3096 if (is_inode_flag_set(inode, FI_INLINE_DATA))
3097 ri->i_inline |= F2FS_INLINE_DATA;
3098 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
3099 ri->i_inline |= F2FS_INLINE_DENTRY;
3100 if (is_inode_flag_set(inode, FI_DATA_EXIST))
3101 ri->i_inline |= F2FS_DATA_EXIST;
3102 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
3103 ri->i_inline |= F2FS_INLINE_DOTS;
3104 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
3105 ri->i_inline |= F2FS_EXTRA_ATTR;
3106 if (is_inode_flag_set(inode, FI_PIN_FILE))
3107 ri->i_inline |= F2FS_PIN_FILE;
3108 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
3109 ri->i_inline |= F2FS_COMPRESS_RELEASED;
3112 static inline int f2fs_has_extra_attr(struct inode *inode)
3114 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3117 static inline int f2fs_has_inline_xattr(struct inode *inode)
3119 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3122 static inline int f2fs_compressed_file(struct inode *inode)
3124 return S_ISREG(inode->i_mode) &&
3125 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3128 static inline bool f2fs_need_compress_data(struct inode *inode)
3130 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3132 if (!f2fs_compressed_file(inode))
3135 if (compress_mode == COMPR_MODE_FS)
3137 else if (compress_mode == COMPR_MODE_USER &&
3138 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3144 static inline unsigned int addrs_per_inode(struct inode *inode)
3146 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3147 get_inline_xattr_addrs(inode);
3149 if (!f2fs_compressed_file(inode))
3151 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3154 static inline unsigned int addrs_per_block(struct inode *inode)
3156 if (!f2fs_compressed_file(inode))
3157 return DEF_ADDRS_PER_BLOCK;
3158 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3161 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3163 struct f2fs_inode *ri = F2FS_INODE(page);
3165 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3166 get_inline_xattr_addrs(inode)]);
3169 static inline int inline_xattr_size(struct inode *inode)
3171 if (f2fs_has_inline_xattr(inode))
3172 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3176 static inline int f2fs_has_inline_data(struct inode *inode)
3178 return is_inode_flag_set(inode, FI_INLINE_DATA);
3181 static inline int f2fs_exist_data(struct inode *inode)
3183 return is_inode_flag_set(inode, FI_DATA_EXIST);
3186 static inline int f2fs_has_inline_dots(struct inode *inode)
3188 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3191 static inline int f2fs_is_mmap_file(struct inode *inode)
3193 return is_inode_flag_set(inode, FI_MMAP_FILE);
3196 static inline bool f2fs_is_pinned_file(struct inode *inode)
3198 return is_inode_flag_set(inode, FI_PIN_FILE);
3201 static inline bool f2fs_is_atomic_file(struct inode *inode)
3203 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3206 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
3208 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
3211 static inline bool f2fs_is_volatile_file(struct inode *inode)
3213 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
3216 static inline bool f2fs_is_first_block_written(struct inode *inode)
3218 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3221 static inline bool f2fs_is_drop_cache(struct inode *inode)
3223 return is_inode_flag_set(inode, FI_DROP_CACHE);
3226 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3228 struct f2fs_inode *ri = F2FS_INODE(page);
3229 int extra_size = get_extra_isize(inode);
3231 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3234 static inline int f2fs_has_inline_dentry(struct inode *inode)
3236 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3239 static inline int is_file(struct inode *inode, int type)
3241 return F2FS_I(inode)->i_advise & type;
3244 static inline void set_file(struct inode *inode, int type)
3246 if (is_file(inode, type))
3248 F2FS_I(inode)->i_advise |= type;
3249 f2fs_mark_inode_dirty_sync(inode, true);
3252 static inline void clear_file(struct inode *inode, int type)
3254 if (!is_file(inode, type))
3256 F2FS_I(inode)->i_advise &= ~type;
3257 f2fs_mark_inode_dirty_sync(inode, true);
3260 static inline bool f2fs_is_time_consistent(struct inode *inode)
3262 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3264 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3266 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3268 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3269 &F2FS_I(inode)->i_crtime))
3274 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3279 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3281 spin_lock(&sbi->inode_lock[DIRTY_META]);
3282 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3283 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3286 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3287 file_keep_isize(inode) ||
3288 i_size_read(inode) & ~PAGE_MASK)
3291 if (!f2fs_is_time_consistent(inode))
3294 spin_lock(&F2FS_I(inode)->i_size_lock);
3295 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3296 spin_unlock(&F2FS_I(inode)->i_size_lock);
3301 static inline bool f2fs_readonly(struct super_block *sb)
3303 return sb_rdonly(sb);
3306 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3308 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3311 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3313 if (len == 1 && name[0] == '.')
3316 if (len == 2 && name[0] == '.' && name[1] == '.')
3322 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3323 size_t size, gfp_t flags)
3325 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3326 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3330 return kmalloc(size, flags);
3333 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3334 size_t size, gfp_t flags)
3336 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3339 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3340 size_t size, gfp_t flags)
3342 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3343 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3347 return kvmalloc(size, flags);
3350 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3351 size_t size, gfp_t flags)
3353 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3356 static inline int get_extra_isize(struct inode *inode)
3358 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3361 static inline int get_inline_xattr_addrs(struct inode *inode)
3363 return F2FS_I(inode)->i_inline_xattr_size;
3366 #define f2fs_get_inode_mode(i) \
3367 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3368 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3370 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3371 (offsetof(struct f2fs_inode, i_extra_end) - \
3372 offsetof(struct f2fs_inode, i_extra_isize)) \
3374 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3375 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3376 ((offsetof(typeof(*(f2fs_inode)), field) + \
3377 sizeof((f2fs_inode)->field)) \
3378 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3380 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3382 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3384 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3385 block_t blkaddr, int type);
3386 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3387 block_t blkaddr, int type)
3389 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3390 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3392 f2fs_bug_on(sbi, 1);
3396 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3398 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3399 blkaddr == COMPRESS_ADDR)
3407 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3408 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3409 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3410 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3411 int f2fs_truncate(struct inode *inode);
3412 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3413 struct kstat *stat, u32 request_mask, unsigned int flags);
3414 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3415 struct iattr *attr);
3416 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3417 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3418 int f2fs_precache_extents(struct inode *inode);
3419 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3420 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3421 struct dentry *dentry, struct fileattr *fa);
3422 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3423 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3424 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3425 int f2fs_pin_file_control(struct inode *inode, bool inc);
3430 void f2fs_set_inode_flags(struct inode *inode);
3431 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3432 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3433 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3434 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3435 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3436 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3437 void f2fs_update_inode_page(struct inode *inode);
3438 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3439 void f2fs_evict_inode(struct inode *inode);
3440 void f2fs_handle_failed_inode(struct inode *inode);
3445 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3446 bool hot, bool set);
3447 struct dentry *f2fs_get_parent(struct dentry *child);
3452 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3453 int f2fs_init_casefolded_name(const struct inode *dir,
3454 struct f2fs_filename *fname);
3455 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3456 int lookup, struct f2fs_filename *fname);
3457 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3458 struct f2fs_filename *fname);
3459 void f2fs_free_filename(struct f2fs_filename *fname);
3460 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3461 const struct f2fs_filename *fname, int *max_slots);
3462 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3463 unsigned int start_pos, struct fscrypt_str *fstr);
3464 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3465 struct f2fs_dentry_ptr *d);
3466 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3467 const struct f2fs_filename *fname, struct page *dpage);
3468 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3469 unsigned int current_depth);
3470 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3471 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3472 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3473 const struct f2fs_filename *fname,
3474 struct page **res_page);
3475 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3476 const struct qstr *child, struct page **res_page);
3477 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3478 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3479 struct page **page);
3480 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3481 struct page *page, struct inode *inode);
3482 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3483 const struct f2fs_filename *fname);
3484 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3485 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3486 unsigned int bit_pos);
3487 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3488 struct inode *inode, nid_t ino, umode_t mode);
3489 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3490 struct inode *inode, nid_t ino, umode_t mode);
3491 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3492 struct inode *inode, nid_t ino, umode_t mode);
3493 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3494 struct inode *dir, struct inode *inode);
3495 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3496 bool f2fs_empty_dir(struct inode *dir);
3498 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3500 if (fscrypt_is_nokey_name(dentry))
3502 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3503 inode, inode->i_ino, inode->i_mode);
3509 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3510 void f2fs_inode_synced(struct inode *inode);
3511 int f2fs_dquot_initialize(struct inode *inode);
3512 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3513 int f2fs_quota_sync(struct super_block *sb, int type);
3514 loff_t max_file_blocks(struct inode *inode);
3515 void f2fs_quota_off_umount(struct super_block *sb);
3516 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3517 int f2fs_sync_fs(struct super_block *sb, int sync);
3518 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3523 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3530 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3531 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3532 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3533 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3534 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3535 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3536 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3537 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3538 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3539 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3540 struct node_info *ni, bool checkpoint_context);
3541 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3542 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3543 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3544 int f2fs_truncate_xattr_node(struct inode *inode);
3545 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3546 unsigned int seq_id);
3547 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3548 int f2fs_remove_inode_page(struct inode *inode);
3549 struct page *f2fs_new_inode_page(struct inode *inode);
3550 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3551 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3552 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3553 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3554 int f2fs_move_node_page(struct page *node_page, int gc_type);
3555 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3556 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3557 struct writeback_control *wbc, bool atomic,
3558 unsigned int *seq_id);
3559 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3560 struct writeback_control *wbc,
3561 bool do_balance, enum iostat_type io_type);
3562 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3563 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3564 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3565 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3566 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3567 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3568 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3569 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3570 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3571 unsigned int segno, struct f2fs_summary_block *sum);
3572 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3573 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3574 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3575 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3576 int __init f2fs_create_node_manager_caches(void);
3577 void f2fs_destroy_node_manager_caches(void);
3582 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3583 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3584 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3585 void f2fs_drop_inmem_pages(struct inode *inode);
3586 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3587 int f2fs_commit_inmem_pages(struct inode *inode);
3588 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3589 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3590 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3591 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3592 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3593 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3594 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3595 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3596 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3597 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3598 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3599 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3600 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3601 struct cp_control *cpc);
3602 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3603 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3604 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3605 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3606 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3607 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3608 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3609 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3610 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3611 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3612 unsigned int *newseg, bool new_sec, int dir);
3613 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3614 unsigned int start, unsigned int end);
3615 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3616 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3617 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3618 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3619 struct cp_control *cpc);
3620 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3621 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3623 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3624 enum iostat_type io_type);
3625 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3626 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3627 struct f2fs_io_info *fio);
3628 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3629 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3630 block_t old_blkaddr, block_t new_blkaddr,
3631 bool recover_curseg, bool recover_newaddr,
3633 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3634 block_t old_addr, block_t new_addr,
3635 unsigned char version, bool recover_curseg,
3636 bool recover_newaddr);
3637 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3638 block_t old_blkaddr, block_t *new_blkaddr,
3639 struct f2fs_summary *sum, int type,
3640 struct f2fs_io_info *fio);
3641 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3642 block_t blkaddr, unsigned int blkcnt);
3643 void f2fs_wait_on_page_writeback(struct page *page,
3644 enum page_type type, bool ordered, bool locked);
3645 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3646 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3648 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3649 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3650 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3651 unsigned int val, int alloc);
3652 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3653 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3654 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3655 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3656 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3657 int __init f2fs_create_segment_manager_caches(void);
3658 void f2fs_destroy_segment_manager_caches(void);
3659 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3660 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3661 enum page_type type, enum temp_type temp);
3662 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3663 unsigned int segno);
3664 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3665 unsigned int segno);
3667 #define DEF_FRAGMENT_SIZE 4
3668 #define MIN_FRAGMENT_SIZE 1
3669 #define MAX_FRAGMENT_SIZE 512
3671 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3673 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3674 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3680 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3681 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3682 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3683 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3684 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3685 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3686 block_t blkaddr, int type);
3687 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3688 int type, bool sync);
3689 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index,
3690 unsigned int ra_blocks);
3691 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3692 long nr_to_write, enum iostat_type io_type);
3693 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3694 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3695 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3696 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3697 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3698 unsigned int devidx, int type);
3699 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3700 unsigned int devidx, int type);
3701 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3702 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3703 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3704 void f2fs_add_orphan_inode(struct inode *inode);
3705 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3706 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3707 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3708 void f2fs_update_dirty_folio(struct inode *inode, struct folio *folio);
3709 void f2fs_remove_dirty_inode(struct inode *inode);
3710 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3711 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3712 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3713 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3714 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3715 int __init f2fs_create_checkpoint_caches(void);
3716 void f2fs_destroy_checkpoint_caches(void);
3717 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3718 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3719 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3720 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3725 int __init f2fs_init_bioset(void);
3726 void f2fs_destroy_bioset(void);
3727 int f2fs_init_bio_entry_cache(void);
3728 void f2fs_destroy_bio_entry_cache(void);
3729 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3730 struct bio *bio, enum page_type type);
3731 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3732 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3733 struct inode *inode, struct page *page,
3734 nid_t ino, enum page_type type);
3735 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3736 struct bio **bio, struct page *page);
3737 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3738 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3739 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3740 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3741 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3742 block_t blk_addr, sector_t *sector);
3743 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3744 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3745 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3746 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3747 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3748 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3749 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3750 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3751 int op_flags, bool for_write);
3752 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3753 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3755 struct page *f2fs_get_new_data_page(struct inode *inode,
3756 struct page *ipage, pgoff_t index, bool new_i_size);
3757 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3758 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3759 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3760 int create, int flag);
3761 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3762 u64 start, u64 len);
3763 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3764 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3765 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3766 int f2fs_write_single_data_page(struct page *page, int *submitted,
3767 struct bio **bio, sector_t *last_block,
3768 struct writeback_control *wbc,
3769 enum iostat_type io_type,
3770 int compr_blocks, bool allow_balance);
3771 void f2fs_write_failed(struct inode *inode, loff_t to);
3772 void f2fs_invalidate_folio(struct folio *folio, size_t offset, size_t length);
3773 int f2fs_release_page(struct page *page, gfp_t wait);
3774 #ifdef CONFIG_MIGRATION
3775 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3776 struct page *page, enum migrate_mode mode);
3778 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3779 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3780 int f2fs_init_post_read_processing(void);
3781 void f2fs_destroy_post_read_processing(void);
3782 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3783 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3784 extern const struct iomap_ops f2fs_iomap_ops;
3789 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3790 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3791 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3792 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force,
3793 unsigned int segno);
3794 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3795 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3796 int __init f2fs_create_garbage_collection_cache(void);
3797 void f2fs_destroy_garbage_collection_cache(void);
3802 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3803 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3804 int __init f2fs_create_recovery_cache(void);
3805 void f2fs_destroy_recovery_cache(void);
3810 #ifdef CONFIG_F2FS_STAT_FS
3811 struct f2fs_stat_info {
3812 struct list_head stat_list;
3813 struct f2fs_sb_info *sbi;
3814 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3815 int main_area_segs, main_area_sections, main_area_zones;
3816 unsigned long long hit_largest, hit_cached, hit_rbtree;
3817 unsigned long long hit_total, total_ext;
3818 int ext_tree, zombie_tree, ext_node;
3819 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3820 int ndirty_data, ndirty_qdata;
3822 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3823 int nats, dirty_nats, sits, dirty_sits;
3824 int free_nids, avail_nids, alloc_nids;
3825 int total_count, utilization;
3826 int bg_gc, nr_wb_cp_data, nr_wb_data;
3827 int nr_rd_data, nr_rd_node, nr_rd_meta;
3828 int nr_dio_read, nr_dio_write;
3829 unsigned int io_skip_bggc, other_skip_bggc;
3830 int nr_flushing, nr_flushed, flush_list_empty;
3831 int nr_discarding, nr_discarded;
3833 unsigned int undiscard_blks;
3834 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3835 unsigned int cur_ckpt_time, peak_ckpt_time;
3836 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3838 unsigned long long compr_blocks;
3839 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3840 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3841 unsigned int bimodal, avg_vblocks;
3842 int util_free, util_valid, util_invalid;
3843 int rsvd_segs, overp_segs;
3844 int dirty_count, node_pages, meta_pages, compress_pages;
3845 int compress_page_hit;
3846 int prefree_count, call_count, cp_count, bg_cp_count;
3847 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3848 int bg_node_segs, bg_data_segs;
3849 int tot_blks, data_blks, node_blks;
3850 int bg_data_blks, bg_node_blks;
3851 unsigned long long skipped_atomic_files[2];
3852 int curseg[NR_CURSEG_TYPE];
3853 int cursec[NR_CURSEG_TYPE];
3854 int curzone[NR_CURSEG_TYPE];
3855 unsigned int dirty_seg[NR_CURSEG_TYPE];
3856 unsigned int full_seg[NR_CURSEG_TYPE];
3857 unsigned int valid_blks[NR_CURSEG_TYPE];
3859 unsigned int meta_count[META_MAX];
3860 unsigned int segment_count[2];
3861 unsigned int block_count[2];
3862 unsigned int inplace_count;
3863 unsigned long long base_mem, cache_mem, page_mem;
3866 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3868 return (struct f2fs_stat_info *)sbi->stat_info;
3871 #define stat_inc_cp_count(si) ((si)->cp_count++)
3872 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3873 #define stat_inc_call_count(si) ((si)->call_count++)
3874 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3875 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3876 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3877 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3878 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3879 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3880 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3881 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3882 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3883 #define stat_inc_inline_xattr(inode) \
3885 if (f2fs_has_inline_xattr(inode)) \
3886 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3888 #define stat_dec_inline_xattr(inode) \
3890 if (f2fs_has_inline_xattr(inode)) \
3891 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3893 #define stat_inc_inline_inode(inode) \
3895 if (f2fs_has_inline_data(inode)) \
3896 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3898 #define stat_dec_inline_inode(inode) \
3900 if (f2fs_has_inline_data(inode)) \
3901 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3903 #define stat_inc_inline_dir(inode) \
3905 if (f2fs_has_inline_dentry(inode)) \
3906 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3908 #define stat_dec_inline_dir(inode) \
3910 if (f2fs_has_inline_dentry(inode)) \
3911 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3913 #define stat_inc_compr_inode(inode) \
3915 if (f2fs_compressed_file(inode)) \
3916 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3918 #define stat_dec_compr_inode(inode) \
3920 if (f2fs_compressed_file(inode)) \
3921 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3923 #define stat_add_compr_blocks(inode, blocks) \
3924 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3925 #define stat_sub_compr_blocks(inode, blocks) \
3926 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3927 #define stat_inc_meta_count(sbi, blkaddr) \
3929 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3930 atomic_inc(&(sbi)->meta_count[META_CP]); \
3931 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3932 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3933 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3934 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3935 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3936 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3938 #define stat_inc_seg_type(sbi, curseg) \
3939 ((sbi)->segment_count[(curseg)->alloc_type]++)
3940 #define stat_inc_block_count(sbi, curseg) \
3941 ((sbi)->block_count[(curseg)->alloc_type]++)
3942 #define stat_inc_inplace_blocks(sbi) \
3943 (atomic_inc(&(sbi)->inplace_count))
3944 #define stat_update_max_atomic_write(inode) \
3946 int cur = F2FS_I_SB(inode)->atomic_files; \
3947 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3949 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3951 #define stat_inc_volatile_write(inode) \
3952 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3953 #define stat_dec_volatile_write(inode) \
3954 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3955 #define stat_update_max_volatile_write(inode) \
3957 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3958 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3960 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3962 #define stat_inc_seg_count(sbi, type, gc_type) \
3964 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3966 if ((type) == SUM_TYPE_DATA) { \
3968 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3971 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3975 #define stat_inc_tot_blk_count(si, blks) \
3976 ((si)->tot_blks += (blks))
3978 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3980 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3981 stat_inc_tot_blk_count(si, blks); \
3982 si->data_blks += (blks); \
3983 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3986 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3988 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3989 stat_inc_tot_blk_count(si, blks); \
3990 si->node_blks += (blks); \
3991 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3994 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3995 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3996 void __init f2fs_create_root_stats(void);
3997 void f2fs_destroy_root_stats(void);
3998 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
4000 #define stat_inc_cp_count(si) do { } while (0)
4001 #define stat_inc_bg_cp_count(si) do { } while (0)
4002 #define stat_inc_call_count(si) do { } while (0)
4003 #define stat_inc_bggc_count(si) do { } while (0)
4004 #define stat_io_skip_bggc_count(sbi) do { } while (0)
4005 #define stat_other_skip_bggc_count(sbi) do { } while (0)
4006 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
4007 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
4008 #define stat_inc_total_hit(sbi) do { } while (0)
4009 #define stat_inc_rbtree_node_hit(sbi) do { } while (0)
4010 #define stat_inc_largest_node_hit(sbi) do { } while (0)
4011 #define stat_inc_cached_node_hit(sbi) do { } while (0)
4012 #define stat_inc_inline_xattr(inode) do { } while (0)
4013 #define stat_dec_inline_xattr(inode) do { } while (0)
4014 #define stat_inc_inline_inode(inode) do { } while (0)
4015 #define stat_dec_inline_inode(inode) do { } while (0)
4016 #define stat_inc_inline_dir(inode) do { } while (0)
4017 #define stat_dec_inline_dir(inode) do { } while (0)
4018 #define stat_inc_compr_inode(inode) do { } while (0)
4019 #define stat_dec_compr_inode(inode) do { } while (0)
4020 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
4021 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
4022 #define stat_update_max_atomic_write(inode) do { } while (0)
4023 #define stat_inc_volatile_write(inode) do { } while (0)
4024 #define stat_dec_volatile_write(inode) do { } while (0)
4025 #define stat_update_max_volatile_write(inode) do { } while (0)
4026 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
4027 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
4028 #define stat_inc_block_count(sbi, curseg) do { } while (0)
4029 #define stat_inc_inplace_blocks(sbi) do { } while (0)
4030 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
4031 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
4032 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
4033 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
4035 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
4036 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
4037 static inline void __init f2fs_create_root_stats(void) { }
4038 static inline void f2fs_destroy_root_stats(void) { }
4039 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
4042 extern const struct file_operations f2fs_dir_operations;
4043 extern const struct file_operations f2fs_file_operations;
4044 extern const struct inode_operations f2fs_file_inode_operations;
4045 extern const struct address_space_operations f2fs_dblock_aops;
4046 extern const struct address_space_operations f2fs_node_aops;
4047 extern const struct address_space_operations f2fs_meta_aops;
4048 extern const struct inode_operations f2fs_dir_inode_operations;
4049 extern const struct inode_operations f2fs_symlink_inode_operations;
4050 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
4051 extern const struct inode_operations f2fs_special_inode_operations;
4052 extern struct kmem_cache *f2fs_inode_entry_slab;
4057 bool f2fs_may_inline_data(struct inode *inode);
4058 bool f2fs_may_inline_dentry(struct inode *inode);
4059 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
4060 void f2fs_truncate_inline_inode(struct inode *inode,
4061 struct page *ipage, u64 from);
4062 int f2fs_read_inline_data(struct inode *inode, struct page *page);
4063 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
4064 int f2fs_convert_inline_inode(struct inode *inode);
4065 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
4066 int f2fs_write_inline_data(struct inode *inode, struct page *page);
4067 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
4068 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
4069 const struct f2fs_filename *fname,
4070 struct page **res_page);
4071 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
4072 struct page *ipage);
4073 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
4074 struct inode *inode, nid_t ino, umode_t mode);
4075 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
4076 struct page *page, struct inode *dir,
4077 struct inode *inode);
4078 bool f2fs_empty_inline_dir(struct inode *dir);
4079 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
4080 struct fscrypt_str *fstr);
4081 int f2fs_inline_data_fiemap(struct inode *inode,
4082 struct fiemap_extent_info *fieinfo,
4083 __u64 start, __u64 len);
4088 unsigned long f2fs_shrink_count(struct shrinker *shrink,
4089 struct shrink_control *sc);
4090 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
4091 struct shrink_control *sc);
4092 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
4093 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
4098 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
4099 struct rb_entry *cached_re, unsigned int ofs);
4100 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
4101 struct rb_root_cached *root,
4102 struct rb_node **parent,
4103 unsigned long long key, bool *left_most);
4104 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
4105 struct rb_root_cached *root,
4106 struct rb_node **parent,
4107 unsigned int ofs, bool *leftmost);
4108 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
4109 struct rb_entry *cached_re, unsigned int ofs,
4110 struct rb_entry **prev_entry, struct rb_entry **next_entry,
4111 struct rb_node ***insert_p, struct rb_node **insert_parent,
4112 bool force, bool *leftmost);
4113 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
4114 struct rb_root_cached *root, bool check_key);
4115 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
4116 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
4117 void f2fs_drop_extent_tree(struct inode *inode);
4118 unsigned int f2fs_destroy_extent_node(struct inode *inode);
4119 void f2fs_destroy_extent_tree(struct inode *inode);
4120 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
4121 struct extent_info *ei);
4122 void f2fs_update_extent_cache(struct dnode_of_data *dn);
4123 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
4124 pgoff_t fofs, block_t blkaddr, unsigned int len);
4125 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
4126 int __init f2fs_create_extent_cache(void);
4127 void f2fs_destroy_extent_cache(void);
4132 #define MIN_RA_MUL 2
4133 #define MAX_RA_MUL 256
4135 int __init f2fs_init_sysfs(void);
4136 void f2fs_exit_sysfs(void);
4137 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4138 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4141 extern const struct fsverity_operations f2fs_verityops;
4146 static inline bool f2fs_encrypted_file(struct inode *inode)
4148 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4151 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4153 #ifdef CONFIG_FS_ENCRYPTION
4154 file_set_encrypt(inode);
4155 f2fs_set_inode_flags(inode);
4160 * Returns true if the reads of the inode's data need to undergo some
4161 * postprocessing step, like decryption or authenticity verification.
4163 static inline bool f2fs_post_read_required(struct inode *inode)
4165 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4166 f2fs_compressed_file(inode);
4172 #ifdef CONFIG_F2FS_FS_COMPRESSION
4173 bool f2fs_is_compressed_page(struct page *page);
4174 struct page *f2fs_compress_control_page(struct page *page);
4175 int f2fs_prepare_compress_overwrite(struct inode *inode,
4176 struct page **pagep, pgoff_t index, void **fsdata);
4177 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4178 pgoff_t index, unsigned copied);
4179 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4180 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4181 bool f2fs_is_compress_backend_ready(struct inode *inode);
4182 int f2fs_init_compress_mempool(void);
4183 void f2fs_destroy_compress_mempool(void);
4184 void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
4185 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4187 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4188 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4189 bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
4190 int index, int nr_pages);
4191 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4192 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4193 int f2fs_write_multi_pages(struct compress_ctx *cc,
4195 struct writeback_control *wbc,
4196 enum iostat_type io_type);
4197 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4198 void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4199 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4200 unsigned int c_len);
4201 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4202 unsigned nr_pages, sector_t *last_block_in_bio,
4203 bool is_readahead, bool for_write);
4204 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4205 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
4206 void f2fs_put_page_dic(struct page *page);
4207 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4208 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4209 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4210 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4211 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4212 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4213 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4214 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4215 int __init f2fs_init_compress_cache(void);
4216 void f2fs_destroy_compress_cache(void);
4217 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4218 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4219 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4220 nid_t ino, block_t blkaddr);
4221 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4223 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4224 #define inc_compr_inode_stat(inode) \
4226 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4227 sbi->compr_new_inode++; \
4229 #define add_compr_block_stat(inode, blocks) \
4231 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4232 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4233 sbi->compr_written_block += blocks; \
4234 sbi->compr_saved_block += diff; \
4237 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4238 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4240 if (!f2fs_compressed_file(inode))
4242 /* not support compression */
4245 static inline struct page *f2fs_compress_control_page(struct page *page)
4248 return ERR_PTR(-EINVAL);
4250 static inline int f2fs_init_compress_mempool(void) { return 0; }
4251 static inline void f2fs_destroy_compress_mempool(void) { }
4252 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
4253 static inline void f2fs_end_read_compressed_page(struct page *page,
4254 bool failed, block_t blkaddr)
4258 static inline void f2fs_put_page_dic(struct page *page)
4262 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
4263 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
4264 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4265 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4266 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4267 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4268 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4269 static inline void f2fs_destroy_compress_cache(void) { }
4270 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4271 block_t blkaddr) { }
4272 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4273 struct page *page, nid_t ino, block_t blkaddr) { }
4274 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4275 struct page *page, block_t blkaddr) { return false; }
4276 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4278 #define inc_compr_inode_stat(inode) do { } while (0)
4279 static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4280 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4281 unsigned int c_len) { }
4284 static inline void set_compress_context(struct inode *inode)
4286 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4288 F2FS_I(inode)->i_compress_algorithm =
4289 F2FS_OPTION(sbi).compress_algorithm;
4290 F2FS_I(inode)->i_log_cluster_size =
4291 F2FS_OPTION(sbi).compress_log_size;
4292 F2FS_I(inode)->i_compress_flag =
4293 F2FS_OPTION(sbi).compress_chksum ?
4294 1 << COMPRESS_CHKSUM : 0;
4295 F2FS_I(inode)->i_cluster_size =
4296 1 << F2FS_I(inode)->i_log_cluster_size;
4297 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4298 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4299 F2FS_OPTION(sbi).compress_level)
4300 F2FS_I(inode)->i_compress_flag |=
4301 F2FS_OPTION(sbi).compress_level <<
4302 COMPRESS_LEVEL_OFFSET;
4303 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4304 set_inode_flag(inode, FI_COMPRESSED_FILE);
4305 stat_inc_compr_inode(inode);
4306 inc_compr_inode_stat(inode);
4307 f2fs_mark_inode_dirty_sync(inode, true);
4310 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4312 struct f2fs_inode_info *fi = F2FS_I(inode);
4314 if (!f2fs_compressed_file(inode))
4316 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
4319 fi->i_flags &= ~F2FS_COMPR_FL;
4320 stat_dec_compr_inode(inode);
4321 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4322 f2fs_mark_inode_dirty_sync(inode, true);
4326 #define F2FS_FEATURE_FUNCS(name, flagname) \
4327 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4329 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4332 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4333 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4334 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4335 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4336 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4337 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4338 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4339 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4340 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4341 F2FS_FEATURE_FUNCS(verity, VERITY);
4342 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4343 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4344 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4345 F2FS_FEATURE_FUNCS(readonly, RO);
4347 static inline bool f2fs_may_extent_tree(struct inode *inode)
4349 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4351 if (!test_opt(sbi, EXTENT_CACHE) ||
4352 is_inode_flag_set(inode, FI_NO_EXTENT) ||
4353 (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
4354 !f2fs_sb_has_readonly(sbi)))
4358 * for recovered files during mount do not create extents
4359 * if shrinker is not registered.
4361 if (list_empty(&sbi->s_list))
4364 return S_ISREG(inode->i_mode);
4367 #ifdef CONFIG_BLK_DEV_ZONED
4368 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4371 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4373 return test_bit(zno, FDEV(devi).blkz_seq);
4377 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4379 return f2fs_sb_has_blkzoned(sbi);
4382 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4384 return blk_queue_discard(bdev_get_queue(bdev)) ||
4385 bdev_is_zoned(bdev);
4388 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4392 if (!f2fs_is_multi_device(sbi))
4393 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4395 for (i = 0; i < sbi->s_ndevs; i++)
4396 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4401 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4403 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4404 f2fs_hw_should_discard(sbi);
4407 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4411 if (!f2fs_is_multi_device(sbi))
4412 return bdev_read_only(sbi->sb->s_bdev);
4414 for (i = 0; i < sbi->s_ndevs; i++)
4415 if (bdev_read_only(FDEV(i).bdev))
4420 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4422 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4425 static inline bool f2fs_may_compress(struct inode *inode)
4427 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4428 f2fs_is_atomic_file(inode) ||
4429 f2fs_is_volatile_file(inode))
4431 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4434 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4435 u64 blocks, bool add)
4437 int diff = F2FS_I(inode)->i_cluster_size - blocks;
4438 struct f2fs_inode_info *fi = F2FS_I(inode);
4440 /* don't update i_compr_blocks if saved blocks were released */
4441 if (!add && !atomic_read(&fi->i_compr_blocks))
4445 atomic_add(diff, &fi->i_compr_blocks);
4446 stat_add_compr_blocks(inode, diff);
4448 atomic_sub(diff, &fi->i_compr_blocks);
4449 stat_sub_compr_blocks(inode, diff);
4451 f2fs_mark_inode_dirty_sync(inode, true);
4454 static inline int block_unaligned_IO(struct inode *inode,
4455 struct kiocb *iocb, struct iov_iter *iter)
4457 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4458 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4459 loff_t offset = iocb->ki_pos;
4460 unsigned long align = offset | iov_iter_alignment(iter);
4462 return align & blocksize_mask;
4465 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4468 if (!f2fs_is_multi_device(sbi))
4470 if (flag != F2FS_GET_BLOCK_DIO)
4472 return sbi->aligned_blksize;
4475 static inline bool f2fs_force_buffered_io(struct inode *inode,
4476 struct kiocb *iocb, struct iov_iter *iter)
4478 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4479 int rw = iov_iter_rw(iter);
4481 if (!fscrypt_dio_supported(iocb, iter))
4483 if (fsverity_active(inode))
4485 if (f2fs_compressed_file(inode))
4488 /* disallow direct IO if any of devices has unaligned blksize */
4489 if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
4492 * for blkzoned device, fallback direct IO to buffered IO, so
4493 * all IOs can be serialized by log-structured write.
4495 if (f2fs_sb_has_blkzoned(sbi))
4497 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4498 if (block_unaligned_IO(inode, iocb, iter))
4500 if (F2FS_IO_ALIGNED(sbi))
4503 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
4509 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4511 return fsverity_active(inode) &&
4512 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4515 #ifdef CONFIG_F2FS_FAULT_INJECTION
4516 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4519 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4522 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4525 if (f2fs_sb_has_quota_ino(sbi))
4527 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4528 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4529 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4535 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4537 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4540 static inline void f2fs_io_schedule_timeout(long timeout)
4542 set_current_state(TASK_UNINTERRUPTIBLE);
4543 io_schedule_timeout(timeout);
4546 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4547 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4549 #endif /* _LINUX_F2FS_H */