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>
31 #ifdef CONFIG_F2FS_CHECK_FS
32 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
34 #define f2fs_bug_on(sbi, condition) \
36 if (WARN_ON(condition)) \
37 set_sbi_flag(sbi, SBI_NEED_FSCK); \
59 #ifdef CONFIG_F2FS_FAULT_INJECTION
60 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
62 struct f2fs_fault_info {
64 unsigned int inject_rate;
65 unsigned int inject_type;
68 extern const char *f2fs_fault_name[FAULT_MAX];
69 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
75 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
76 #define F2FS_MOUNT_DISCARD 0x00000004
77 #define F2FS_MOUNT_NOHEAP 0x00000008
78 #define F2FS_MOUNT_XATTR_USER 0x00000010
79 #define F2FS_MOUNT_POSIX_ACL 0x00000020
80 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
81 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
82 #define F2FS_MOUNT_INLINE_DATA 0x00000100
83 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
84 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
85 #define F2FS_MOUNT_NOBARRIER 0x00000800
86 #define F2FS_MOUNT_FASTBOOT 0x00001000
87 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
88 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
89 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
90 #define F2FS_MOUNT_USRQUOTA 0x00080000
91 #define F2FS_MOUNT_GRPQUOTA 0x00100000
92 #define F2FS_MOUNT_PRJQUOTA 0x00200000
93 #define F2FS_MOUNT_QUOTA 0x00400000
94 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
95 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
96 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
97 #define F2FS_MOUNT_NORECOVERY 0x04000000
98 #define F2FS_MOUNT_ATGC 0x08000000
99 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
100 #define F2FS_MOUNT_GC_MERGE 0x20000000
101 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
103 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
104 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
105 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
106 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
108 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
109 typecheck(unsigned long long, b) && \
110 ((long long)((a) - (b)) > 0))
112 typedef u32 block_t; /*
113 * should not change u32, since it is the on-disk block
114 * address format, __le32.
118 #define COMPRESS_EXT_NUM 16
120 struct f2fs_mount_info {
122 int write_io_size_bits; /* Write IO size bits */
123 block_t root_reserved_blocks; /* root reserved blocks */
124 kuid_t s_resuid; /* reserved blocks for uid */
125 kgid_t s_resgid; /* reserved blocks for gid */
126 int active_logs; /* # of active logs */
127 int inline_xattr_size; /* inline xattr size */
128 #ifdef CONFIG_F2FS_FAULT_INJECTION
129 struct f2fs_fault_info fault_info; /* For fault injection */
132 /* Names of quota files with journalled quota */
133 char *s_qf_names[MAXQUOTAS];
134 int s_jquota_fmt; /* Format of quota to use */
136 /* For which write hints are passed down to block layer */
138 int alloc_mode; /* segment allocation policy */
139 int fsync_mode; /* fsync policy */
140 int fs_mode; /* fs mode: LFS or ADAPTIVE */
141 int bggc_mode; /* bggc mode: off, on or sync */
142 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
143 block_t unusable_cap_perc; /* percentage for cap */
144 block_t unusable_cap; /* Amount of space allowed to be
145 * unusable when disabling checkpoint
148 /* For compression */
149 unsigned char compress_algorithm; /* algorithm type */
150 unsigned char compress_log_size; /* cluster log size */
151 unsigned char compress_level; /* compress level */
152 bool compress_chksum; /* compressed data chksum */
153 unsigned char compress_ext_cnt; /* extension count */
154 unsigned char nocompress_ext_cnt; /* nocompress extension count */
155 int compress_mode; /* compression mode */
156 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
157 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
160 #define F2FS_FEATURE_ENCRYPT 0x0001
161 #define F2FS_FEATURE_BLKZONED 0x0002
162 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
163 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
164 #define F2FS_FEATURE_PRJQUOTA 0x0010
165 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
166 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
167 #define F2FS_FEATURE_QUOTA_INO 0x0080
168 #define F2FS_FEATURE_INODE_CRTIME 0x0100
169 #define F2FS_FEATURE_LOST_FOUND 0x0200
170 #define F2FS_FEATURE_VERITY 0x0400
171 #define F2FS_FEATURE_SB_CHKSUM 0x0800
172 #define F2FS_FEATURE_CASEFOLD 0x1000
173 #define F2FS_FEATURE_COMPRESSION 0x2000
174 #define F2FS_FEATURE_RO 0x4000
176 #define __F2FS_HAS_FEATURE(raw_super, mask) \
177 ((raw_super->feature & cpu_to_le32(mask)) != 0)
178 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
179 #define F2FS_SET_FEATURE(sbi, mask) \
180 (sbi->raw_super->feature |= cpu_to_le32(mask))
181 #define F2FS_CLEAR_FEATURE(sbi, mask) \
182 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
185 * Default values for user and/or group using reserved blocks
187 #define F2FS_DEF_RESUID 0
188 #define F2FS_DEF_RESGID 0
191 * For checkpoint manager
198 #define CP_UMOUNT 0x00000001
199 #define CP_FASTBOOT 0x00000002
200 #define CP_SYNC 0x00000004
201 #define CP_RECOVERY 0x00000008
202 #define CP_DISCARD 0x00000010
203 #define CP_TRIMMED 0x00000020
204 #define CP_PAUSE 0x00000040
205 #define CP_RESIZE 0x00000080
207 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
208 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
209 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
210 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
211 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
212 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
213 #define DEF_CP_INTERVAL 60 /* 60 secs */
214 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
215 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
216 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
217 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
227 * indicate meta/data type
236 DATA_GENERIC, /* check range only */
237 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
238 DATA_GENERIC_ENHANCE_READ, /*
239 * strong check on range and segment
240 * bitmap but no warning due to race
241 * condition of read on truncated area
247 /* for the list of ino */
249 ORPHAN_INO, /* for orphan ino list */
250 APPEND_INO, /* for append ino list */
251 UPDATE_INO, /* for update ino list */
252 TRANS_DIR_INO, /* for trasactions dir ino list */
253 FLUSH_INO, /* for multiple device flushing */
254 MAX_INO_ENTRY, /* max. list */
258 struct list_head list; /* list head */
259 nid_t ino; /* inode number */
260 unsigned int dirty_device; /* dirty device bitmap */
263 /* for the list of inodes to be GCed */
265 struct list_head list; /* list head */
266 struct inode *inode; /* vfs inode pointer */
269 struct fsync_node_entry {
270 struct list_head list; /* list head */
271 struct page *page; /* warm node page pointer */
272 unsigned int seq_id; /* sequence id */
276 struct completion wait; /* completion for checkpoint done */
277 struct llist_node llnode; /* llist_node to be linked in wait queue */
278 int ret; /* return code of checkpoint */
279 ktime_t queue_time; /* request queued time */
282 struct ckpt_req_control {
283 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
284 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
285 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
286 atomic_t issued_ckpt; /* # of actually issued ckpts */
287 atomic_t total_ckpt; /* # of total ckpts */
288 atomic_t queued_ckpt; /* # of queued ckpts */
289 struct llist_head issue_list; /* list for command issue */
290 spinlock_t stat_lock; /* lock for below checkpoint time stats */
291 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
292 unsigned int peak_time; /* peak wait time in msec until now */
295 /* for the bitmap indicate blocks to be discarded */
296 struct discard_entry {
297 struct list_head list; /* list head */
298 block_t start_blkaddr; /* start blockaddr of current segment */
299 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
302 /* default discard granularity of inner discard thread, unit: block count */
303 #define DEFAULT_DISCARD_GRANULARITY 16
305 /* max discard pend list number */
306 #define MAX_PLIST_NUM 512
307 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
308 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
311 D_PREP, /* initial */
312 D_PARTIAL, /* partially submitted */
313 D_SUBMIT, /* all submitted */
314 D_DONE, /* finished */
317 struct discard_info {
318 block_t lstart; /* logical start address */
319 block_t len; /* length */
320 block_t start; /* actual start address in dev */
324 struct rb_node rb_node; /* rb node located in rb-tree */
327 block_t lstart; /* logical start address */
328 block_t len; /* length */
329 block_t start; /* actual start address in dev */
331 struct discard_info di; /* discard info */
334 struct list_head list; /* command list */
335 struct completion wait; /* compleation */
336 struct block_device *bdev; /* bdev */
337 unsigned short ref; /* reference count */
338 unsigned char state; /* state */
339 unsigned char queued; /* queued discard */
340 int error; /* bio error */
341 spinlock_t lock; /* for state/bio_ref updating */
342 unsigned short bio_ref; /* bio reference count */
353 struct discard_policy {
354 int type; /* type of discard */
355 unsigned int min_interval; /* used for candidates exist */
356 unsigned int mid_interval; /* used for device busy */
357 unsigned int max_interval; /* used for candidates not exist */
358 unsigned int max_requests; /* # of discards issued per round */
359 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
360 bool io_aware; /* issue discard in idle time */
361 bool sync; /* submit discard with REQ_SYNC flag */
362 bool ordered; /* issue discard by lba order */
363 bool timeout; /* discard timeout for put_super */
364 unsigned int granularity; /* discard granularity */
367 struct discard_cmd_control {
368 struct task_struct *f2fs_issue_discard; /* discard thread */
369 struct list_head entry_list; /* 4KB discard entry list */
370 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
371 struct list_head wait_list; /* store on-flushing entries */
372 struct list_head fstrim_list; /* in-flight discard from fstrim */
373 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
374 unsigned int discard_wake; /* to wake up discard thread */
375 struct mutex cmd_lock;
376 unsigned int nr_discards; /* # of discards in the list */
377 unsigned int max_discards; /* max. discards to be issued */
378 unsigned int discard_granularity; /* discard granularity */
379 unsigned int undiscard_blks; /* # of undiscard blocks */
380 unsigned int next_pos; /* next discard position */
381 atomic_t issued_discard; /* # of issued discard */
382 atomic_t queued_discard; /* # of queued discard */
383 atomic_t discard_cmd_cnt; /* # of cached cmd count */
384 struct rb_root_cached root; /* root of discard rb-tree */
385 bool rbtree_check; /* config for consistence check */
388 /* for the list of fsync inodes, used only during recovery */
389 struct fsync_inode_entry {
390 struct list_head list; /* list head */
391 struct inode *inode; /* vfs inode pointer */
392 block_t blkaddr; /* block address locating the last fsync */
393 block_t last_dentry; /* block address locating the last dentry */
396 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
397 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
399 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
400 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
401 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
402 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
404 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
405 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
407 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
409 int before = nats_in_cursum(journal);
411 journal->n_nats = cpu_to_le16(before + i);
415 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
417 int before = sits_in_cursum(journal);
419 journal->n_sits = cpu_to_le16(before + i);
423 static inline bool __has_cursum_space(struct f2fs_journal *journal,
426 if (type == NAT_JOURNAL)
427 return size <= MAX_NAT_JENTRIES(journal);
428 return size <= MAX_SIT_JENTRIES(journal);
431 /* for inline stuff */
432 #define DEF_INLINE_RESERVED_SIZE 1
433 static inline int get_extra_isize(struct inode *inode);
434 static inline int get_inline_xattr_addrs(struct inode *inode);
435 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
436 (CUR_ADDRS_PER_INODE(inode) - \
437 get_inline_xattr_addrs(inode) - \
438 DEF_INLINE_RESERVED_SIZE))
441 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
442 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
444 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
445 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
446 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
447 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
448 NR_INLINE_DENTRY(inode) + \
449 INLINE_DENTRY_BITMAP_SIZE(inode)))
452 * For INODE and NODE manager
454 /* for directory operations */
456 struct f2fs_filename {
458 * The filename the user specified. This is NULL for some
459 * filesystem-internal operations, e.g. converting an inline directory
460 * to a non-inline one, or roll-forward recovering an encrypted dentry.
462 const struct qstr *usr_fname;
465 * The on-disk filename. For encrypted directories, this is encrypted.
466 * This may be NULL for lookups in an encrypted dir without the key.
468 struct fscrypt_str disk_name;
470 /* The dirhash of this filename */
473 #ifdef CONFIG_FS_ENCRYPTION
475 * For lookups in encrypted directories: either the buffer backing
476 * disk_name, or a buffer that holds the decoded no-key name.
478 struct fscrypt_str crypto_buf;
480 #ifdef CONFIG_UNICODE
482 * For casefolded directories: the casefolded name, but it's left NULL
483 * if the original name is not valid Unicode, if the directory is both
484 * casefolded and encrypted and its encryption key is unavailable, or if
485 * the filesystem is doing an internal operation where usr_fname is also
486 * NULL. In all these cases we fall back to treating the name as an
487 * opaque byte sequence.
489 struct fscrypt_str cf_name;
493 struct f2fs_dentry_ptr {
496 struct f2fs_dir_entry *dentry;
497 __u8 (*filename)[F2FS_SLOT_LEN];
502 static inline void make_dentry_ptr_block(struct inode *inode,
503 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
506 d->max = NR_DENTRY_IN_BLOCK;
507 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
508 d->bitmap = t->dentry_bitmap;
509 d->dentry = t->dentry;
510 d->filename = t->filename;
513 static inline void make_dentry_ptr_inline(struct inode *inode,
514 struct f2fs_dentry_ptr *d, void *t)
516 int entry_cnt = NR_INLINE_DENTRY(inode);
517 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
518 int reserved_size = INLINE_RESERVED_SIZE(inode);
522 d->nr_bitmap = bitmap_size;
524 d->dentry = t + bitmap_size + reserved_size;
525 d->filename = t + bitmap_size + reserved_size +
526 SIZE_OF_DIR_ENTRY * entry_cnt;
530 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
531 * as its node offset to distinguish from index node blocks.
532 * But some bits are used to mark the node block.
534 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
537 ALLOC_NODE, /* allocate a new node page if needed */
538 LOOKUP_NODE, /* look up a node without readahead */
540 * look up a node with readahead called
545 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
547 /* congestion wait timeout value, default: 20ms */
548 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
550 /* maximum retry quota flush count */
551 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
553 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
555 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
557 /* for in-memory extent cache entry */
558 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
560 /* number of extent info in extent cache we try to shrink */
561 #define EXTENT_CACHE_SHRINK_NUMBER 128
564 struct rb_node rb_node; /* rb node located in rb-tree */
567 unsigned int ofs; /* start offset of the entry */
568 unsigned int len; /* length of the entry */
570 unsigned long long key; /* 64-bits key */
575 unsigned int fofs; /* start offset in a file */
576 unsigned int len; /* length of the extent */
577 u32 blk; /* start block address of the extent */
581 struct rb_node rb_node; /* rb node located in rb-tree */
582 struct extent_info ei; /* extent info */
583 struct list_head list; /* node in global extent list of sbi */
584 struct extent_tree *et; /* extent tree pointer */
588 nid_t ino; /* inode number */
589 struct rb_root_cached root; /* root of extent info rb-tree */
590 struct extent_node *cached_en; /* recently accessed extent node */
591 struct extent_info largest; /* largested extent info */
592 struct list_head list; /* to be used by sbi->zombie_list */
593 rwlock_t lock; /* protect extent info rb-tree */
594 atomic_t node_cnt; /* # of extent node in rb-tree*/
595 bool largest_updated; /* largest extent updated */
599 * This structure is taken from ext4_map_blocks.
601 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
603 #define F2FS_MAP_NEW (1 << BH_New)
604 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
605 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
606 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
609 struct f2fs_map_blocks {
613 unsigned int m_flags;
614 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
615 pgoff_t *m_next_extent; /* point to next possible extent */
617 bool m_may_create; /* indicate it is from write path */
620 /* for flag in get_data_block */
622 F2FS_GET_BLOCK_DEFAULT,
623 F2FS_GET_BLOCK_FIEMAP,
626 F2FS_GET_BLOCK_PRE_DIO,
627 F2FS_GET_BLOCK_PRE_AIO,
628 F2FS_GET_BLOCK_PRECACHE,
632 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
634 #define FADVISE_COLD_BIT 0x01
635 #define FADVISE_LOST_PINO_BIT 0x02
636 #define FADVISE_ENCRYPT_BIT 0x04
637 #define FADVISE_ENC_NAME_BIT 0x08
638 #define FADVISE_KEEP_SIZE_BIT 0x10
639 #define FADVISE_HOT_BIT 0x20
640 #define FADVISE_VERITY_BIT 0x40
642 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
644 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
645 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
646 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
648 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
649 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
650 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
652 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
653 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
655 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
656 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
658 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
659 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
661 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
662 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
663 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
665 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
666 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
668 #define DEF_DIR_LEVEL 0
676 /* used for f2fs_inode_info->flags */
678 FI_NEW_INODE, /* indicate newly allocated inode */
679 FI_DIRTY_INODE, /* indicate inode is dirty or not */
680 FI_AUTO_RECOVER, /* indicate inode is recoverable */
681 FI_DIRTY_DIR, /* indicate directory has dirty pages */
682 FI_INC_LINK, /* need to increment i_nlink */
683 FI_ACL_MODE, /* indicate acl mode */
684 FI_NO_ALLOC, /* should not allocate any blocks */
685 FI_FREE_NID, /* free allocated nide */
686 FI_NO_EXTENT, /* not to use the extent cache */
687 FI_INLINE_XATTR, /* used for inline xattr */
688 FI_INLINE_DATA, /* used for inline data*/
689 FI_INLINE_DENTRY, /* used for inline dentry */
690 FI_APPEND_WRITE, /* inode has appended data */
691 FI_UPDATE_WRITE, /* inode has in-place-update data */
692 FI_NEED_IPU, /* used for ipu per file */
693 FI_ATOMIC_FILE, /* indicate atomic file */
694 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
695 FI_VOLATILE_FILE, /* indicate volatile file */
696 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
697 FI_DROP_CACHE, /* drop dirty page cache */
698 FI_DATA_EXIST, /* indicate data exists */
699 FI_INLINE_DOTS, /* indicate inline dot dentries */
700 FI_DO_DEFRAG, /* indicate defragment is running */
701 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
702 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
703 FI_HOT_DATA, /* indicate file is hot */
704 FI_EXTRA_ATTR, /* indicate file has extra attribute */
705 FI_PROJ_INHERIT, /* indicate file inherits projectid */
706 FI_PIN_FILE, /* indicate file should not be gced */
707 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
708 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
709 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
710 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
711 FI_MMAP_FILE, /* indicate file was mmapped */
712 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
713 FI_COMPRESS_RELEASED, /* compressed blocks were released */
714 FI_ALIGNED_WRITE, /* enable aligned write */
715 FI_MAX, /* max flag, never be used */
718 struct f2fs_inode_info {
719 struct inode vfs_inode; /* serve a vfs inode */
720 unsigned long i_flags; /* keep an inode flags for ioctl */
721 unsigned char i_advise; /* use to give file attribute hints */
722 unsigned char i_dir_level; /* use for dentry level for large dir */
723 unsigned int i_current_depth; /* only for directory depth */
724 /* for gc failure statistic */
725 unsigned int i_gc_failures[MAX_GC_FAILURE];
726 unsigned int i_pino; /* parent inode number */
727 umode_t i_acl_mode; /* keep file acl mode temporarily */
729 /* Use below internally in f2fs*/
730 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
731 struct rw_semaphore i_sem; /* protect fi info */
732 atomic_t dirty_pages; /* # of dirty pages */
733 f2fs_hash_t chash; /* hash value of given file name */
734 unsigned int clevel; /* maximum level of given file name */
735 struct task_struct *task; /* lookup and create consistency */
736 struct task_struct *cp_task; /* separate cp/wb IO stats*/
737 nid_t i_xattr_nid; /* node id that contains xattrs */
738 loff_t last_disk_size; /* lastly written file size */
739 spinlock_t i_size_lock; /* protect last_disk_size */
742 struct dquot *i_dquot[MAXQUOTAS];
744 /* quota space reservation, managed internally by quota code */
745 qsize_t i_reserved_quota;
747 struct list_head dirty_list; /* dirty list for dirs and files */
748 struct list_head gdirty_list; /* linked in global dirty list */
749 struct list_head inmem_ilist; /* list for inmem inodes */
750 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
751 struct task_struct *inmem_task; /* store inmemory task */
752 struct mutex inmem_lock; /* lock for inmemory pages */
753 struct extent_tree *extent_tree; /* cached extent_tree entry */
755 /* avoid racing between foreground op and gc */
756 struct rw_semaphore i_gc_rwsem[2];
757 struct rw_semaphore i_mmap_sem;
758 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
760 int i_extra_isize; /* size of extra space located in i_addr */
761 kprojid_t i_projid; /* id for project quota */
762 int i_inline_xattr_size; /* inline xattr size */
763 struct timespec64 i_crtime; /* inode creation time */
764 struct timespec64 i_disk_time[4];/* inode disk times */
766 /* for file compress */
767 atomic_t i_compr_blocks; /* # of compressed blocks */
768 unsigned char i_compress_algorithm; /* algorithm type */
769 unsigned char i_log_cluster_size; /* log of cluster size */
770 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
771 unsigned short i_compress_flag; /* compress flag */
772 unsigned int i_cluster_size; /* cluster size */
775 static inline void get_extent_info(struct extent_info *ext,
776 struct f2fs_extent *i_ext)
778 ext->fofs = le32_to_cpu(i_ext->fofs);
779 ext->blk = le32_to_cpu(i_ext->blk);
780 ext->len = le32_to_cpu(i_ext->len);
783 static inline void set_raw_extent(struct extent_info *ext,
784 struct f2fs_extent *i_ext)
786 i_ext->fofs = cpu_to_le32(ext->fofs);
787 i_ext->blk = cpu_to_le32(ext->blk);
788 i_ext->len = cpu_to_le32(ext->len);
791 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
792 u32 blk, unsigned int len)
799 static inline bool __is_discard_mergeable(struct discard_info *back,
800 struct discard_info *front, unsigned int max_len)
802 return (back->lstart + back->len == front->lstart) &&
803 (back->len + front->len <= max_len);
806 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
807 struct discard_info *back, unsigned int max_len)
809 return __is_discard_mergeable(back, cur, max_len);
812 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
813 struct discard_info *front, unsigned int max_len)
815 return __is_discard_mergeable(cur, front, max_len);
818 static inline bool __is_extent_mergeable(struct extent_info *back,
819 struct extent_info *front)
821 return (back->fofs + back->len == front->fofs &&
822 back->blk + back->len == front->blk);
825 static inline bool __is_back_mergeable(struct extent_info *cur,
826 struct extent_info *back)
828 return __is_extent_mergeable(back, cur);
831 static inline bool __is_front_mergeable(struct extent_info *cur,
832 struct extent_info *front)
834 return __is_extent_mergeable(cur, front);
837 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
838 static inline void __try_update_largest_extent(struct extent_tree *et,
839 struct extent_node *en)
841 if (en->ei.len > et->largest.len) {
842 et->largest = en->ei;
843 et->largest_updated = true;
848 * For free nid management
851 FREE_NID, /* newly added to free nid list */
852 PREALLOC_NID, /* it is preallocated */
863 struct f2fs_nm_info {
864 block_t nat_blkaddr; /* base disk address of NAT */
865 nid_t max_nid; /* maximum possible node ids */
866 nid_t available_nids; /* # of available node ids */
867 nid_t next_scan_nid; /* the next nid to be scanned */
868 unsigned int ram_thresh; /* control the memory footprint */
869 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
870 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
872 /* NAT cache management */
873 struct radix_tree_root nat_root;/* root of the nat entry cache */
874 struct radix_tree_root nat_set_root;/* root of the nat set cache */
875 struct rw_semaphore nat_tree_lock; /* protect nat entry tree */
876 struct list_head nat_entries; /* cached nat entry list (clean) */
877 spinlock_t nat_list_lock; /* protect clean nat entry list */
878 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
879 unsigned int nat_blocks; /* # of nat blocks */
881 /* free node ids management */
882 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
883 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
884 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
885 spinlock_t nid_list_lock; /* protect nid lists ops */
886 struct mutex build_lock; /* lock for build free nids */
887 unsigned char **free_nid_bitmap;
888 unsigned char *nat_block_bitmap;
889 unsigned short *free_nid_count; /* free nid count of NAT block */
892 char *nat_bitmap; /* NAT bitmap pointer */
894 unsigned int nat_bits_blocks; /* # of nat bits blocks */
895 unsigned char *nat_bits; /* NAT bits blocks */
896 unsigned char *full_nat_bits; /* full NAT pages */
897 unsigned char *empty_nat_bits; /* empty NAT pages */
898 #ifdef CONFIG_F2FS_CHECK_FS
899 char *nat_bitmap_mir; /* NAT bitmap mirror */
901 int bitmap_size; /* bitmap size */
905 * this structure is used as one of function parameters.
906 * all the information are dedicated to a given direct node block determined
907 * by the data offset in a file.
909 struct dnode_of_data {
910 struct inode *inode; /* vfs inode pointer */
911 struct page *inode_page; /* its inode page, NULL is possible */
912 struct page *node_page; /* cached direct node page */
913 nid_t nid; /* node id of the direct node block */
914 unsigned int ofs_in_node; /* data offset in the node page */
915 bool inode_page_locked; /* inode page is locked or not */
916 bool node_changed; /* is node block changed */
917 char cur_level; /* level of hole node page */
918 char max_level; /* level of current page located */
919 block_t data_blkaddr; /* block address of the node block */
922 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
923 struct page *ipage, struct page *npage, nid_t nid)
925 memset(dn, 0, sizeof(*dn));
927 dn->inode_page = ipage;
928 dn->node_page = npage;
935 * By default, there are 6 active log areas across the whole main area.
936 * When considering hot and cold data separation to reduce cleaning overhead,
937 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
939 * In the current design, you should not change the numbers intentionally.
940 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
941 * logs individually according to the underlying devices. (default: 6)
942 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
943 * data and 8 for node logs.
945 #define NR_CURSEG_DATA_TYPE (3)
946 #define NR_CURSEG_NODE_TYPE (3)
947 #define NR_CURSEG_INMEM_TYPE (2)
948 #define NR_CURSEG_RO_TYPE (2)
949 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
950 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
953 CURSEG_HOT_DATA = 0, /* directory entry blocks */
954 CURSEG_WARM_DATA, /* data blocks */
955 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
956 CURSEG_HOT_NODE, /* direct node blocks of directory files */
957 CURSEG_WARM_NODE, /* direct node blocks of normal files */
958 CURSEG_COLD_NODE, /* indirect node blocks */
959 NR_PERSISTENT_LOG, /* number of persistent log */
960 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
961 /* pinned file that needs consecutive block address */
962 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
963 NO_CHECK_TYPE, /* number of persistent & inmem log */
967 struct completion wait;
968 struct llist_node llnode;
973 struct flush_cmd_control {
974 struct task_struct *f2fs_issue_flush; /* flush thread */
975 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
976 atomic_t issued_flush; /* # of issued flushes */
977 atomic_t queued_flush; /* # of queued flushes */
978 struct llist_head issue_list; /* list for command issue */
979 struct llist_node *dispatch_list; /* list for command dispatch */
982 struct f2fs_sm_info {
983 struct sit_info *sit_info; /* whole segment information */
984 struct free_segmap_info *free_info; /* free segment information */
985 struct dirty_seglist_info *dirty_info; /* dirty segment information */
986 struct curseg_info *curseg_array; /* active segment information */
988 struct rw_semaphore curseg_lock; /* for preventing curseg change */
990 block_t seg0_blkaddr; /* block address of 0'th segment */
991 block_t main_blkaddr; /* start block address of main area */
992 block_t ssa_blkaddr; /* start block address of SSA area */
994 unsigned int segment_count; /* total # of segments */
995 unsigned int main_segments; /* # of segments in main area */
996 unsigned int reserved_segments; /* # of reserved segments */
997 unsigned int ovp_segments; /* # of overprovision segments */
999 /* a threshold to reclaim prefree segments */
1000 unsigned int rec_prefree_segments;
1002 /* for batched trimming */
1003 unsigned int trim_sections; /* # of sections to trim */
1005 struct list_head sit_entry_set; /* sit entry set list */
1007 unsigned int ipu_policy; /* in-place-update policy */
1008 unsigned int min_ipu_util; /* in-place-update threshold */
1009 unsigned int min_fsync_blocks; /* threshold for fsync */
1010 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1011 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1012 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1014 /* for flush command control */
1015 struct flush_cmd_control *fcc_info;
1017 /* for discard command control */
1018 struct discard_cmd_control *dcc_info;
1025 * COUNT_TYPE for monitoring
1027 * f2fs monitors the number of several block types such as on-writeback,
1028 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1030 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1050 * The below are the page types of bios used in submit_bio().
1051 * The available types are:
1052 * DATA User data pages. It operates as async mode.
1053 * NODE Node pages. It operates as async mode.
1054 * META FS metadata pages such as SIT, NAT, CP.
1055 * NR_PAGE_TYPE The number of page types.
1056 * META_FLUSH Make sure the previous pages are written
1057 * with waiting the bio's completion
1058 * ... Only can be used with META.
1060 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1067 INMEM, /* the below types are used by tracepoints only. */
1076 HOT = 0, /* must be zero for meta bio */
1082 enum need_lock_type {
1088 enum cp_reason_type {
1104 APP_DIRECT_IO, /* app direct write IOs */
1105 APP_BUFFERED_IO, /* app buffered write IOs */
1106 APP_WRITE_IO, /* app write IOs */
1107 APP_MAPPED_IO, /* app mapped IOs */
1108 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1109 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1110 FS_META_IO, /* meta IOs from kworker/reclaimer */
1111 FS_GC_DATA_IO, /* data IOs from forground gc */
1112 FS_GC_NODE_IO, /* node IOs from forground gc */
1113 FS_CP_DATA_IO, /* data IOs from checkpoint */
1114 FS_CP_NODE_IO, /* node IOs from checkpoint */
1115 FS_CP_META_IO, /* meta IOs from checkpoint */
1118 APP_DIRECT_READ_IO, /* app direct read IOs */
1119 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1120 APP_READ_IO, /* app read IOs */
1121 APP_MAPPED_READ_IO, /* app mapped read IOs */
1122 FS_DATA_READ_IO, /* data read IOs */
1123 FS_GDATA_READ_IO, /* data read IOs from background gc */
1124 FS_CDATA_READ_IO, /* compressed data read IOs */
1125 FS_NODE_READ_IO, /* node read IOs */
1126 FS_META_READ_IO, /* meta read IOs */
1129 FS_DISCARD, /* discard */
1133 struct f2fs_io_info {
1134 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1135 nid_t ino; /* inode number */
1136 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1137 enum temp_type temp; /* contains HOT/WARM/COLD */
1138 int op; /* contains REQ_OP_ */
1139 int op_flags; /* req_flag_bits */
1140 block_t new_blkaddr; /* new block address to be written */
1141 block_t old_blkaddr; /* old block address before Cow */
1142 struct page *page; /* page to be written */
1143 struct page *encrypted_page; /* encrypted page */
1144 struct page *compressed_page; /* compressed page */
1145 struct list_head list; /* serialize IOs */
1146 bool submitted; /* indicate IO submission */
1147 int need_lock; /* indicate we need to lock cp_rwsem */
1148 bool in_list; /* indicate fio is in io_list */
1149 bool is_por; /* indicate IO is from recovery or not */
1150 bool retry; /* need to reallocate block address */
1151 int compr_blocks; /* # of compressed block addresses */
1152 bool encrypted; /* indicate file is encrypted */
1153 enum iostat_type io_type; /* io type */
1154 struct writeback_control *io_wbc; /* writeback control */
1155 struct bio **bio; /* bio for ipu */
1156 sector_t *last_block; /* last block number in bio */
1157 unsigned char version; /* version of the node */
1162 struct list_head list;
1165 #define is_read_io(rw) ((rw) == READ)
1166 struct f2fs_bio_info {
1167 struct f2fs_sb_info *sbi; /* f2fs superblock */
1168 struct bio *bio; /* bios to merge */
1169 sector_t last_block_in_bio; /* last block number */
1170 struct f2fs_io_info fio; /* store buffered io info. */
1171 struct rw_semaphore io_rwsem; /* blocking op for bio */
1172 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1173 struct list_head io_list; /* track fios */
1174 struct list_head bio_list; /* bio entry list head */
1175 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
1178 #define FDEV(i) (sbi->devs[i])
1179 #define RDEV(i) (raw_super->devs[i])
1180 struct f2fs_dev_info {
1181 struct block_device *bdev;
1182 char path[MAX_PATH_LEN];
1183 unsigned int total_segments;
1186 #ifdef CONFIG_BLK_DEV_ZONED
1187 unsigned int nr_blkz; /* Total number of zones */
1188 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1189 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */
1194 DIR_INODE, /* for dirty dir inode */
1195 FILE_INODE, /* for dirty regular/symlink inode */
1196 DIRTY_META, /* for all dirtied inode metadata */
1197 ATOMIC_FILE, /* for all atomic files */
1201 /* for inner inode cache management */
1202 struct inode_management {
1203 struct radix_tree_root ino_root; /* ino entry array */
1204 spinlock_t ino_lock; /* for ino entry lock */
1205 struct list_head ino_list; /* inode list head */
1206 unsigned long ino_num; /* number of entries */
1210 struct atgc_management {
1211 bool atgc_enabled; /* ATGC is enabled or not */
1212 struct rb_root_cached root; /* root of victim rb-tree */
1213 struct list_head victim_list; /* linked with all victim entries */
1214 unsigned int victim_count; /* victim count in rb-tree */
1215 unsigned int candidate_ratio; /* candidate ratio */
1216 unsigned int max_candidate_count; /* max candidate count */
1217 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1218 unsigned long long age_threshold; /* age threshold */
1221 /* For s_flag in struct f2fs_sb_info */
1223 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1224 SBI_IS_CLOSE, /* specify unmounting */
1225 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1226 SBI_POR_DOING, /* recovery is doing or not */
1227 SBI_NEED_SB_WRITE, /* need to recover superblock */
1228 SBI_NEED_CP, /* need to checkpoint */
1229 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1230 SBI_IS_RECOVERED, /* recovered orphan/data */
1231 SBI_CP_DISABLED, /* CP was disabled last mount */
1232 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1233 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1234 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1235 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1236 SBI_IS_RESIZEFS, /* resizefs is in process */
1245 UMOUNT_DISCARD_TIMEOUT,
1260 BGGC_MODE_ON, /* background gc is on */
1261 BGGC_MODE_OFF, /* background gc is off */
1263 * background gc is on, migrating blocks
1264 * like foreground gc
1269 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1270 FS_MODE_LFS, /* use lfs allocation only */
1274 WHINT_MODE_OFF, /* not pass down write hints */
1275 WHINT_MODE_USER, /* try to pass down hints given by users */
1276 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1280 ALLOC_MODE_DEFAULT, /* stay default */
1281 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1285 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1286 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1287 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1292 * automatically compress compression
1296 * automatical compression is disabled.
1297 * user can control the file compression
1302 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1303 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1304 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1307 * Layout of f2fs page.private:
1309 * Layout A: lowest bit should be 1
1310 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1311 * bit 0 PAGE_PRIVATE_NOT_POINTER
1312 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1313 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1314 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1315 * bit 4 PAGE_PRIVATE_INLINE_INODE
1316 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1317 * bit 6- f2fs private data
1319 * Layout B: lowest bit should be 0
1320 * page.private is a wrapped pointer.
1323 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1324 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1325 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1326 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1327 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1328 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1332 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1333 static inline bool page_private_##name(struct page *page) \
1335 return PagePrivate(page) && \
1336 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1337 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1340 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1341 static inline void set_page_private_##name(struct page *page) \
1343 if (!PagePrivate(page)) { \
1345 SetPagePrivate(page); \
1346 set_page_private(page, 0); \
1348 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1349 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1352 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1353 static inline void clear_page_private_##name(struct page *page) \
1355 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1356 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1357 set_page_private(page, 0); \
1358 if (PagePrivate(page)) { \
1359 ClearPagePrivate(page); \
1365 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1366 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1367 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1368 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1369 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1370 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1372 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1373 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1374 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1375 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1376 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1378 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1379 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1380 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1381 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1382 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1384 static inline unsigned long get_page_private_data(struct page *page)
1386 unsigned long data = page_private(page);
1388 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1390 return data >> PAGE_PRIVATE_MAX;
1393 static inline void set_page_private_data(struct page *page, unsigned long data)
1395 if (!PagePrivate(page)) {
1397 SetPagePrivate(page);
1398 set_page_private(page, 0);
1400 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1401 page_private(page) |= data << PAGE_PRIVATE_MAX;
1404 static inline void clear_page_private_data(struct page *page)
1406 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1407 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1408 set_page_private(page, 0);
1409 if (PagePrivate(page)) {
1410 ClearPagePrivate(page);
1416 /* For compression */
1417 enum compress_algorithm_type {
1425 enum compress_flag {
1430 #define COMPRESS_WATERMARK 20
1431 #define COMPRESS_PERCENT 20
1433 #define COMPRESS_DATA_RESERVED_SIZE 4
1434 struct compress_data {
1435 __le32 clen; /* compressed data size */
1436 __le32 chksum; /* compressed data chksum */
1437 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1438 u8 cdata[]; /* compressed data */
1441 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1443 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1445 #define COMPRESS_LEVEL_OFFSET 8
1447 /* compress context */
1448 struct compress_ctx {
1449 struct inode *inode; /* inode the context belong to */
1450 pgoff_t cluster_idx; /* cluster index number */
1451 unsigned int cluster_size; /* page count in cluster */
1452 unsigned int log_cluster_size; /* log of cluster size */
1453 struct page **rpages; /* pages store raw data in cluster */
1454 unsigned int nr_rpages; /* total page number in rpages */
1455 struct page **cpages; /* pages store compressed data in cluster */
1456 unsigned int nr_cpages; /* total page number in cpages */
1457 void *rbuf; /* virtual mapped address on rpages */
1458 struct compress_data *cbuf; /* virtual mapped address on cpages */
1459 size_t rlen; /* valid data length in rbuf */
1460 size_t clen; /* valid data length in cbuf */
1461 void *private; /* payload buffer for specified compression algorithm */
1462 void *private2; /* extra payload buffer */
1465 /* compress context for write IO path */
1466 struct compress_io_ctx {
1467 u32 magic; /* magic number to indicate page is compressed */
1468 struct inode *inode; /* inode the context belong to */
1469 struct page **rpages; /* pages store raw data in cluster */
1470 unsigned int nr_rpages; /* total page number in rpages */
1471 atomic_t pending_pages; /* in-flight compressed page count */
1474 /* Context for decompressing one cluster on the read IO path */
1475 struct decompress_io_ctx {
1476 u32 magic; /* magic number to indicate page is compressed */
1477 struct inode *inode; /* inode the context belong to */
1478 pgoff_t cluster_idx; /* cluster index number */
1479 unsigned int cluster_size; /* page count in cluster */
1480 unsigned int log_cluster_size; /* log of cluster size */
1481 struct page **rpages; /* pages store raw data in cluster */
1482 unsigned int nr_rpages; /* total page number in rpages */
1483 struct page **cpages; /* pages store compressed data in cluster */
1484 unsigned int nr_cpages; /* total page number in cpages */
1485 struct page **tpages; /* temp pages to pad holes in cluster */
1486 void *rbuf; /* virtual mapped address on rpages */
1487 struct compress_data *cbuf; /* virtual mapped address on cpages */
1488 size_t rlen; /* valid data length in rbuf */
1489 size_t clen; /* valid data length in cbuf */
1492 * The number of compressed pages remaining to be read in this cluster.
1493 * This is initially nr_cpages. It is decremented by 1 each time a page
1494 * has been read (or failed to be read). When it reaches 0, the cluster
1495 * is decompressed (or an error is reported).
1497 * If an error occurs before all the pages have been submitted for I/O,
1498 * then this will never reach 0. In this case the I/O submitter is
1499 * responsible for calling f2fs_decompress_end_io() instead.
1501 atomic_t remaining_pages;
1504 * Number of references to this decompress_io_ctx.
1506 * One reference is held for I/O completion. This reference is dropped
1507 * after the pagecache pages are updated and unlocked -- either after
1508 * decompression (and verity if enabled), or after an error.
1510 * In addition, each compressed page holds a reference while it is in a
1511 * bio. These references are necessary prevent compressed pages from
1512 * being freed while they are still in a bio.
1516 bool failed; /* IO error occurred before decompression? */
1517 bool need_verity; /* need fs-verity verification after decompression? */
1518 void *private; /* payload buffer for specified decompression algorithm */
1519 void *private2; /* extra payload buffer */
1520 struct work_struct verity_work; /* work to verify the decompressed pages */
1523 #define NULL_CLUSTER ((unsigned int)(~0))
1524 #define MIN_COMPRESS_LOG_SIZE 2
1525 #define MAX_COMPRESS_LOG_SIZE 8
1526 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1528 struct f2fs_sb_info {
1529 struct super_block *sb; /* pointer to VFS super block */
1530 struct proc_dir_entry *s_proc; /* proc entry */
1531 struct f2fs_super_block *raw_super; /* raw super block pointer */
1532 struct rw_semaphore sb_lock; /* lock for raw super block */
1533 int valid_super_block; /* valid super block no */
1534 unsigned long s_flag; /* flags for sbi */
1535 struct mutex writepages; /* mutex for writepages() */
1537 #ifdef CONFIG_BLK_DEV_ZONED
1538 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1539 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1542 /* for node-related operations */
1543 struct f2fs_nm_info *nm_info; /* node manager */
1544 struct inode *node_inode; /* cache node blocks */
1546 /* for segment-related operations */
1547 struct f2fs_sm_info *sm_info; /* segment manager */
1549 /* for bio operations */
1550 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1551 /* keep migration IO order for LFS mode */
1552 struct rw_semaphore io_order_lock;
1553 mempool_t *write_io_dummy; /* Dummy pages */
1555 /* for checkpoint */
1556 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1557 int cur_cp_pack; /* remain current cp pack */
1558 spinlock_t cp_lock; /* for flag in ckpt */
1559 struct inode *meta_inode; /* cache meta blocks */
1560 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */
1561 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1562 struct rw_semaphore node_write; /* locking node writes */
1563 struct rw_semaphore node_change; /* locking node change */
1564 wait_queue_head_t cp_wait;
1565 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1566 long interval_time[MAX_TIME]; /* to store thresholds */
1567 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1569 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1571 spinlock_t fsync_node_lock; /* for node entry lock */
1572 struct list_head fsync_node_list; /* node list head */
1573 unsigned int fsync_seg_id; /* sequence id */
1574 unsigned int fsync_node_num; /* number of node entries */
1576 /* for orphan inode, use 0'th array */
1577 unsigned int max_orphans; /* max orphan inodes */
1579 /* for inode management */
1580 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1581 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1582 struct mutex flush_lock; /* for flush exclusion */
1584 /* for extent tree cache */
1585 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1586 struct mutex extent_tree_lock; /* locking extent radix tree */
1587 struct list_head extent_list; /* lru list for shrinker */
1588 spinlock_t extent_lock; /* locking extent lru list */
1589 atomic_t total_ext_tree; /* extent tree count */
1590 struct list_head zombie_list; /* extent zombie tree list */
1591 atomic_t total_zombie_tree; /* extent zombie tree count */
1592 atomic_t total_ext_node; /* extent info count */
1594 /* basic filesystem units */
1595 unsigned int log_sectors_per_block; /* log2 sectors per block */
1596 unsigned int log_blocksize; /* log2 block size */
1597 unsigned int blocksize; /* block size */
1598 unsigned int root_ino_num; /* root inode number*/
1599 unsigned int node_ino_num; /* node inode number*/
1600 unsigned int meta_ino_num; /* meta inode number*/
1601 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1602 unsigned int blocks_per_seg; /* blocks per segment */
1603 unsigned int segs_per_sec; /* segments per section */
1604 unsigned int secs_per_zone; /* sections per zone */
1605 unsigned int total_sections; /* total section count */
1606 unsigned int total_node_count; /* total node block count */
1607 unsigned int total_valid_node_count; /* valid node block count */
1608 int dir_level; /* directory level */
1609 int readdir_ra; /* readahead inode in readdir */
1610 u64 max_io_bytes; /* max io bytes to merge IOs */
1612 block_t user_block_count; /* # of user blocks */
1613 block_t total_valid_block_count; /* # of valid blocks */
1614 block_t discard_blks; /* discard command candidats */
1615 block_t last_valid_block_count; /* for recovery */
1616 block_t reserved_blocks; /* configurable reserved blocks */
1617 block_t current_reserved_blocks; /* current reserved blocks */
1619 /* Additional tracking for no checkpoint mode */
1620 block_t unusable_block_count; /* # of blocks saved by last cp */
1622 unsigned int nquota_files; /* # of quota sysfile */
1623 struct rw_semaphore quota_sem; /* blocking cp for flags */
1625 /* # of pages, see count_type */
1626 atomic_t nr_pages[NR_COUNT_TYPE];
1627 /* # of allocated blocks */
1628 struct percpu_counter alloc_valid_block_count;
1630 /* writeback control */
1631 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1633 /* valid inode count */
1634 struct percpu_counter total_valid_inode_count;
1636 struct f2fs_mount_info mount_opt; /* mount options */
1638 /* for cleaning operations */
1639 struct rw_semaphore gc_lock; /*
1640 * semaphore for GC, avoid
1641 * race between GC and GC or CP
1643 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1644 struct atgc_management am; /* atgc management */
1645 unsigned int cur_victim_sec; /* current victim section num */
1646 unsigned int gc_mode; /* current GC state */
1647 unsigned int next_victim_seg[2]; /* next segment in victim section */
1649 /* for skip statistic */
1650 unsigned int atomic_files; /* # of opened atomic file */
1651 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1652 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1654 /* threshold for gc trials on pinned files */
1655 u64 gc_pin_file_threshold;
1656 struct rw_semaphore pin_sem;
1658 /* maximum # of trials to find a victim segment for SSR and GC */
1659 unsigned int max_victim_search;
1660 /* migration granularity of garbage collection, unit: segment */
1661 unsigned int migration_granularity;
1664 * for stat information.
1665 * one is for the LFS mode, and the other is for the SSR mode.
1667 #ifdef CONFIG_F2FS_STAT_FS
1668 struct f2fs_stat_info *stat_info; /* FS status information */
1669 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1670 unsigned int segment_count[2]; /* # of allocated segments */
1671 unsigned int block_count[2]; /* # of allocated blocks */
1672 atomic_t inplace_count; /* # of inplace update */
1673 atomic64_t total_hit_ext; /* # of lookup extent cache */
1674 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1675 atomic64_t read_hit_largest; /* # of hit largest extent node */
1676 atomic64_t read_hit_cached; /* # of hit cached extent node */
1677 atomic_t inline_xattr; /* # of inline_xattr inodes */
1678 atomic_t inline_inode; /* # of inline_data inodes */
1679 atomic_t inline_dir; /* # of inline_dentry inodes */
1680 atomic_t compr_inode; /* # of compressed inodes */
1681 atomic64_t compr_blocks; /* # of compressed blocks */
1682 atomic_t vw_cnt; /* # of volatile writes */
1683 atomic_t max_aw_cnt; /* max # of atomic writes */
1684 atomic_t max_vw_cnt; /* max # of volatile writes */
1685 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1686 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1687 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1689 spinlock_t stat_lock; /* lock for stat operations */
1691 /* For app/fs IO statistics */
1692 spinlock_t iostat_lock;
1693 unsigned long long rw_iostat[NR_IO_TYPE];
1694 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1696 unsigned long iostat_next_period;
1697 unsigned int iostat_period_ms;
1699 /* to attach REQ_META|REQ_FUA flags */
1700 unsigned int data_io_flag;
1701 unsigned int node_io_flag;
1703 /* For sysfs suppport */
1704 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1705 struct completion s_kobj_unregister;
1707 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1708 struct completion s_stat_kobj_unregister;
1710 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1711 struct completion s_feature_list_kobj_unregister;
1713 /* For shrinker support */
1714 struct list_head s_list;
1715 int s_ndevs; /* number of devices */
1716 struct f2fs_dev_info *devs; /* for device list */
1717 unsigned int dirty_device; /* for checkpoint data flush */
1718 spinlock_t dev_lock; /* protect dirty_device */
1719 struct mutex umount_mutex;
1720 unsigned int shrinker_run_no;
1722 /* For write statistics */
1723 u64 sectors_written_start;
1726 /* Reference to checksum algorithm driver via cryptoapi */
1727 struct crypto_shash *s_chksum_driver;
1729 /* Precomputed FS UUID checksum for seeding other checksums */
1730 __u32 s_chksum_seed;
1732 struct workqueue_struct *post_read_wq; /* post read workqueue */
1734 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1735 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1737 /* For reclaimed segs statistics per each GC mode */
1738 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1739 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1741 #ifdef CONFIG_F2FS_FS_COMPRESSION
1742 struct kmem_cache *page_array_slab; /* page array entry */
1743 unsigned int page_array_slab_size; /* default page array slab size */
1745 /* For runtime compression statistics */
1746 u64 compr_written_block;
1747 u64 compr_saved_block;
1748 u32 compr_new_inode;
1750 /* For compressed block cache */
1751 struct inode *compress_inode; /* cache compressed blocks */
1752 unsigned int compress_percent; /* cache page percentage */
1753 unsigned int compress_watermark; /* cache page watermark */
1754 atomic_t compress_page_hit; /* cache hit count */
1758 struct f2fs_private_dio {
1759 struct inode *inode;
1761 bio_end_io_t *orig_end_io;
1765 #ifdef CONFIG_F2FS_FAULT_INJECTION
1766 #define f2fs_show_injection_info(sbi, type) \
1767 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1768 KERN_INFO, sbi->sb->s_id, \
1769 f2fs_fault_name[type], \
1770 __func__, __builtin_return_address(0))
1771 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1773 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1775 if (!ffi->inject_rate)
1778 if (!IS_FAULT_SET(ffi, type))
1781 atomic_inc(&ffi->inject_ops);
1782 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1783 atomic_set(&ffi->inject_ops, 0);
1789 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1790 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1797 * Test if the mounted volume is a multi-device volume.
1798 * - For a single regular disk volume, sbi->s_ndevs is 0.
1799 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1800 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1802 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1804 return sbi->s_ndevs > 1;
1807 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1809 unsigned long now = jiffies;
1811 sbi->last_time[type] = now;
1813 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1814 if (type == REQ_TIME) {
1815 sbi->last_time[DISCARD_TIME] = now;
1816 sbi->last_time[GC_TIME] = now;
1820 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1822 unsigned long interval = sbi->interval_time[type] * HZ;
1824 return time_after(jiffies, sbi->last_time[type] + interval);
1827 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1830 unsigned long interval = sbi->interval_time[type] * HZ;
1831 unsigned int wait_ms = 0;
1834 delta = (sbi->last_time[type] + interval) - jiffies;
1836 wait_ms = jiffies_to_msecs(delta);
1844 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1845 const void *address, unsigned int length)
1848 struct shash_desc shash;
1853 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1855 desc.shash.tfm = sbi->s_chksum_driver;
1856 *(u32 *)desc.ctx = crc;
1858 err = crypto_shash_update(&desc.shash, address, length);
1861 return *(u32 *)desc.ctx;
1864 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1865 unsigned int length)
1867 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1870 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1871 void *buf, size_t buf_size)
1873 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1876 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1877 const void *address, unsigned int length)
1879 return __f2fs_crc32(sbi, crc, address, length);
1882 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1884 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1887 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1889 return sb->s_fs_info;
1892 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1894 return F2FS_SB(inode->i_sb);
1897 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1899 return F2FS_I_SB(mapping->host);
1902 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1904 return F2FS_M_SB(page_file_mapping(page));
1907 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1909 return (struct f2fs_super_block *)(sbi->raw_super);
1912 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1914 return (struct f2fs_checkpoint *)(sbi->ckpt);
1917 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1919 return (struct f2fs_node *)page_address(page);
1922 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1924 return &((struct f2fs_node *)page_address(page))->i;
1927 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1929 return (struct f2fs_nm_info *)(sbi->nm_info);
1932 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1934 return (struct f2fs_sm_info *)(sbi->sm_info);
1937 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1939 return (struct sit_info *)(SM_I(sbi)->sit_info);
1942 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1944 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1947 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1949 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1952 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1954 return sbi->meta_inode->i_mapping;
1957 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1959 return sbi->node_inode->i_mapping;
1962 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1964 return test_bit(type, &sbi->s_flag);
1967 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1969 set_bit(type, &sbi->s_flag);
1972 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1974 clear_bit(type, &sbi->s_flag);
1977 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1979 return le64_to_cpu(cp->checkpoint_ver);
1982 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1984 if (type < F2FS_MAX_QUOTAS)
1985 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1989 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1991 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1992 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1995 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1997 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1999 return ckpt_flags & f;
2002 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2004 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2007 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2009 unsigned int ckpt_flags;
2011 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2013 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2016 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2018 unsigned long flags;
2020 spin_lock_irqsave(&sbi->cp_lock, flags);
2021 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2022 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2025 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2027 unsigned int ckpt_flags;
2029 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2031 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2034 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2036 unsigned long flags;
2038 spin_lock_irqsave(&sbi->cp_lock, flags);
2039 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2040 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2043 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
2045 unsigned long flags;
2046 unsigned char *nat_bits;
2049 * In order to re-enable nat_bits we need to call fsck.f2fs by
2050 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
2051 * so let's rely on regular fsck or unclean shutdown.
2055 spin_lock_irqsave(&sbi->cp_lock, flags);
2056 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
2057 nat_bits = NM_I(sbi)->nat_bits;
2058 NM_I(sbi)->nat_bits = NULL;
2060 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2065 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
2066 struct cp_control *cpc)
2068 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
2070 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
2073 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2075 down_read(&sbi->cp_rwsem);
2078 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2080 return down_read_trylock(&sbi->cp_rwsem);
2083 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2085 up_read(&sbi->cp_rwsem);
2088 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2090 down_write(&sbi->cp_rwsem);
2093 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2095 up_write(&sbi->cp_rwsem);
2098 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2100 int reason = CP_SYNC;
2102 if (test_opt(sbi, FASTBOOT))
2103 reason = CP_FASTBOOT;
2104 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2109 static inline bool __remain_node_summaries(int reason)
2111 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2114 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2116 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2117 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2121 * Check whether the inode has blocks or not
2123 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2125 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2127 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2130 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2132 return ofs == XATTR_NODE_OFFSET;
2135 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2136 struct inode *inode, bool cap)
2140 if (!test_opt(sbi, RESERVE_ROOT))
2142 if (IS_NOQUOTA(inode))
2144 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2146 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2147 in_group_p(F2FS_OPTION(sbi).s_resgid))
2149 if (cap && capable(CAP_SYS_RESOURCE))
2154 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2155 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2156 struct inode *inode, blkcnt_t *count)
2158 blkcnt_t diff = 0, release = 0;
2159 block_t avail_user_block_count;
2162 ret = dquot_reserve_block(inode, *count);
2166 if (time_to_inject(sbi, FAULT_BLOCK)) {
2167 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2173 * let's increase this in prior to actual block count change in order
2174 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2176 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2178 spin_lock(&sbi->stat_lock);
2179 sbi->total_valid_block_count += (block_t)(*count);
2180 avail_user_block_count = sbi->user_block_count -
2181 sbi->current_reserved_blocks;
2183 if (!__allow_reserved_blocks(sbi, inode, true))
2184 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2185 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2186 if (avail_user_block_count > sbi->unusable_block_count)
2187 avail_user_block_count -= sbi->unusable_block_count;
2189 avail_user_block_count = 0;
2191 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2192 diff = sbi->total_valid_block_count - avail_user_block_count;
2197 sbi->total_valid_block_count -= diff;
2199 spin_unlock(&sbi->stat_lock);
2203 spin_unlock(&sbi->stat_lock);
2205 if (unlikely(release)) {
2206 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2207 dquot_release_reservation_block(inode, release);
2209 f2fs_i_blocks_write(inode, *count, true, true);
2213 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2215 dquot_release_reservation_block(inode, release);
2220 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2222 #define f2fs_err(sbi, fmt, ...) \
2223 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2224 #define f2fs_warn(sbi, fmt, ...) \
2225 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2226 #define f2fs_notice(sbi, fmt, ...) \
2227 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2228 #define f2fs_info(sbi, fmt, ...) \
2229 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2230 #define f2fs_debug(sbi, fmt, ...) \
2231 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2233 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2234 struct inode *inode,
2237 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2239 spin_lock(&sbi->stat_lock);
2240 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2241 sbi->total_valid_block_count -= (block_t)count;
2242 if (sbi->reserved_blocks &&
2243 sbi->current_reserved_blocks < sbi->reserved_blocks)
2244 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2245 sbi->current_reserved_blocks + count);
2246 spin_unlock(&sbi->stat_lock);
2247 if (unlikely(inode->i_blocks < sectors)) {
2248 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2250 (unsigned long long)inode->i_blocks,
2251 (unsigned long long)sectors);
2252 set_sbi_flag(sbi, SBI_NEED_FSCK);
2255 f2fs_i_blocks_write(inode, count, false, true);
2258 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2260 atomic_inc(&sbi->nr_pages[count_type]);
2262 if (count_type == F2FS_DIRTY_DENTS ||
2263 count_type == F2FS_DIRTY_NODES ||
2264 count_type == F2FS_DIRTY_META ||
2265 count_type == F2FS_DIRTY_QDATA ||
2266 count_type == F2FS_DIRTY_IMETA)
2267 set_sbi_flag(sbi, SBI_IS_DIRTY);
2270 static inline void inode_inc_dirty_pages(struct inode *inode)
2272 atomic_inc(&F2FS_I(inode)->dirty_pages);
2273 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2274 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2275 if (IS_NOQUOTA(inode))
2276 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2279 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2281 atomic_dec(&sbi->nr_pages[count_type]);
2284 static inline void inode_dec_dirty_pages(struct inode *inode)
2286 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2287 !S_ISLNK(inode->i_mode))
2290 atomic_dec(&F2FS_I(inode)->dirty_pages);
2291 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2292 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2293 if (IS_NOQUOTA(inode))
2294 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2297 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2299 return atomic_read(&sbi->nr_pages[count_type]);
2302 static inline int get_dirty_pages(struct inode *inode)
2304 return atomic_read(&F2FS_I(inode)->dirty_pages);
2307 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2309 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2310 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2311 sbi->log_blocks_per_seg;
2313 return segs / sbi->segs_per_sec;
2316 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2318 return sbi->total_valid_block_count;
2321 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2323 return sbi->discard_blks;
2326 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2328 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2330 /* return NAT or SIT bitmap */
2331 if (flag == NAT_BITMAP)
2332 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2333 else if (flag == SIT_BITMAP)
2334 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2339 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2341 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2344 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2346 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2347 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2350 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2351 offset = (flag == SIT_BITMAP) ?
2352 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2354 * if large_nat_bitmap feature is enabled, leave checksum
2355 * protection for all nat/sit bitmaps.
2357 return tmp_ptr + offset + sizeof(__le32);
2360 if (__cp_payload(sbi) > 0) {
2361 if (flag == NAT_BITMAP)
2362 return &ckpt->sit_nat_version_bitmap;
2364 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2366 offset = (flag == NAT_BITMAP) ?
2367 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2368 return tmp_ptr + offset;
2372 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2374 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2376 if (sbi->cur_cp_pack == 2)
2377 start_addr += sbi->blocks_per_seg;
2381 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2383 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2385 if (sbi->cur_cp_pack == 1)
2386 start_addr += sbi->blocks_per_seg;
2390 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2392 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2395 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2397 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2400 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2401 struct inode *inode, bool is_inode)
2403 block_t valid_block_count;
2404 unsigned int valid_node_count, user_block_count;
2409 err = dquot_alloc_inode(inode);
2414 err = dquot_reserve_block(inode, 1);
2419 if (time_to_inject(sbi, FAULT_BLOCK)) {
2420 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2424 spin_lock(&sbi->stat_lock);
2426 valid_block_count = sbi->total_valid_block_count +
2427 sbi->current_reserved_blocks + 1;
2429 if (!__allow_reserved_blocks(sbi, inode, false))
2430 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2431 user_block_count = sbi->user_block_count;
2432 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2433 user_block_count -= sbi->unusable_block_count;
2435 if (unlikely(valid_block_count > user_block_count)) {
2436 spin_unlock(&sbi->stat_lock);
2440 valid_node_count = sbi->total_valid_node_count + 1;
2441 if (unlikely(valid_node_count > sbi->total_node_count)) {
2442 spin_unlock(&sbi->stat_lock);
2446 sbi->total_valid_node_count++;
2447 sbi->total_valid_block_count++;
2448 spin_unlock(&sbi->stat_lock);
2452 f2fs_mark_inode_dirty_sync(inode, true);
2454 f2fs_i_blocks_write(inode, 1, true, true);
2457 percpu_counter_inc(&sbi->alloc_valid_block_count);
2463 dquot_free_inode(inode);
2465 dquot_release_reservation_block(inode, 1);
2470 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2471 struct inode *inode, bool is_inode)
2473 spin_lock(&sbi->stat_lock);
2475 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2476 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2478 sbi->total_valid_node_count--;
2479 sbi->total_valid_block_count--;
2480 if (sbi->reserved_blocks &&
2481 sbi->current_reserved_blocks < sbi->reserved_blocks)
2482 sbi->current_reserved_blocks++;
2484 spin_unlock(&sbi->stat_lock);
2487 dquot_free_inode(inode);
2489 if (unlikely(inode->i_blocks == 0)) {
2490 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2492 (unsigned long long)inode->i_blocks);
2493 set_sbi_flag(sbi, SBI_NEED_FSCK);
2496 f2fs_i_blocks_write(inode, 1, false, true);
2500 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2502 return sbi->total_valid_node_count;
2505 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2507 percpu_counter_inc(&sbi->total_valid_inode_count);
2510 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2512 percpu_counter_dec(&sbi->total_valid_inode_count);
2515 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2517 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2520 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2521 pgoff_t index, bool for_write)
2525 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2527 page = find_get_page_flags(mapping, index,
2528 FGP_LOCK | FGP_ACCESSED);
2530 page = find_lock_page(mapping, index);
2534 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2535 f2fs_show_injection_info(F2FS_M_SB(mapping),
2542 return grab_cache_page(mapping, index);
2543 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2546 static inline struct page *f2fs_pagecache_get_page(
2547 struct address_space *mapping, pgoff_t index,
2548 int fgp_flags, gfp_t gfp_mask)
2550 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2551 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2555 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2558 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2560 char *src_kaddr = kmap(src);
2561 char *dst_kaddr = kmap(dst);
2563 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2568 static inline void f2fs_put_page(struct page *page, int unlock)
2574 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2580 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2583 f2fs_put_page(dn->node_page, 1);
2584 if (dn->inode_page && dn->node_page != dn->inode_page)
2585 f2fs_put_page(dn->inode_page, 0);
2586 dn->node_page = NULL;
2587 dn->inode_page = NULL;
2590 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2593 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2596 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2601 entry = kmem_cache_alloc(cachep, flags);
2603 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2607 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2609 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2610 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2611 get_pages(sbi, F2FS_WB_CP_DATA) ||
2612 get_pages(sbi, F2FS_DIO_READ) ||
2613 get_pages(sbi, F2FS_DIO_WRITE))
2616 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2617 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2620 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2621 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2626 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2628 if (sbi->gc_mode == GC_URGENT_HIGH)
2631 if (is_inflight_io(sbi, type))
2634 if (sbi->gc_mode == GC_URGENT_LOW &&
2635 (type == DISCARD_TIME || type == GC_TIME))
2638 return f2fs_time_over(sbi, type);
2641 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2642 unsigned long index, void *item)
2644 while (radix_tree_insert(root, index, item))
2648 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2650 static inline bool IS_INODE(struct page *page)
2652 struct f2fs_node *p = F2FS_NODE(page);
2654 return RAW_IS_INODE(p);
2657 static inline int offset_in_addr(struct f2fs_inode *i)
2659 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2660 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2663 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2665 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2668 static inline int f2fs_has_extra_attr(struct inode *inode);
2669 static inline block_t data_blkaddr(struct inode *inode,
2670 struct page *node_page, unsigned int offset)
2672 struct f2fs_node *raw_node;
2675 bool is_inode = IS_INODE(node_page);
2677 raw_node = F2FS_NODE(node_page);
2681 /* from GC path only */
2682 base = offset_in_addr(&raw_node->i);
2683 else if (f2fs_has_extra_attr(inode))
2684 base = get_extra_isize(inode);
2687 addr_array = blkaddr_in_node(raw_node);
2688 return le32_to_cpu(addr_array[base + offset]);
2691 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2693 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2696 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2701 mask = 1 << (7 - (nr & 0x07));
2702 return mask & *addr;
2705 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2710 mask = 1 << (7 - (nr & 0x07));
2714 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2719 mask = 1 << (7 - (nr & 0x07));
2723 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2729 mask = 1 << (7 - (nr & 0x07));
2735 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2741 mask = 1 << (7 - (nr & 0x07));
2747 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2752 mask = 1 << (7 - (nr & 0x07));
2757 * On-disk inode flags (f2fs_inode::i_flags)
2759 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2760 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2761 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2762 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2763 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2764 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2765 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2766 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2767 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2768 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2769 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2771 /* Flags that should be inherited by new inodes from their parent. */
2772 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2773 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2774 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2776 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2777 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2780 /* Flags that are appropriate for non-directories/regular files. */
2781 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2783 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2787 else if (S_ISREG(mode))
2788 return flags & F2FS_REG_FLMASK;
2790 return flags & F2FS_OTHER_FLMASK;
2793 static inline void __mark_inode_dirty_flag(struct inode *inode,
2797 case FI_INLINE_XATTR:
2798 case FI_INLINE_DATA:
2799 case FI_INLINE_DENTRY:
2805 case FI_INLINE_DOTS:
2807 case FI_COMPRESS_RELEASED:
2808 f2fs_mark_inode_dirty_sync(inode, true);
2812 static inline void set_inode_flag(struct inode *inode, int flag)
2814 set_bit(flag, F2FS_I(inode)->flags);
2815 __mark_inode_dirty_flag(inode, flag, true);
2818 static inline int is_inode_flag_set(struct inode *inode, int flag)
2820 return test_bit(flag, F2FS_I(inode)->flags);
2823 static inline void clear_inode_flag(struct inode *inode, int flag)
2825 clear_bit(flag, F2FS_I(inode)->flags);
2826 __mark_inode_dirty_flag(inode, flag, false);
2829 static inline bool f2fs_verity_in_progress(struct inode *inode)
2831 return IS_ENABLED(CONFIG_FS_VERITY) &&
2832 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2835 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2837 F2FS_I(inode)->i_acl_mode = mode;
2838 set_inode_flag(inode, FI_ACL_MODE);
2839 f2fs_mark_inode_dirty_sync(inode, false);
2842 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2848 f2fs_mark_inode_dirty_sync(inode, true);
2851 static inline void f2fs_i_blocks_write(struct inode *inode,
2852 block_t diff, bool add, bool claim)
2854 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2855 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2857 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2860 dquot_claim_block(inode, diff);
2862 dquot_alloc_block_nofail(inode, diff);
2864 dquot_free_block(inode, diff);
2867 f2fs_mark_inode_dirty_sync(inode, true);
2868 if (clean || recover)
2869 set_inode_flag(inode, FI_AUTO_RECOVER);
2872 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2874 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2875 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2877 if (i_size_read(inode) == i_size)
2880 i_size_write(inode, i_size);
2881 f2fs_mark_inode_dirty_sync(inode, true);
2882 if (clean || recover)
2883 set_inode_flag(inode, FI_AUTO_RECOVER);
2886 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2888 F2FS_I(inode)->i_current_depth = depth;
2889 f2fs_mark_inode_dirty_sync(inode, true);
2892 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2895 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2896 f2fs_mark_inode_dirty_sync(inode, true);
2899 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2901 F2FS_I(inode)->i_xattr_nid = xnid;
2902 f2fs_mark_inode_dirty_sync(inode, true);
2905 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2907 F2FS_I(inode)->i_pino = pino;
2908 f2fs_mark_inode_dirty_sync(inode, true);
2911 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2913 struct f2fs_inode_info *fi = F2FS_I(inode);
2915 if (ri->i_inline & F2FS_INLINE_XATTR)
2916 set_bit(FI_INLINE_XATTR, fi->flags);
2917 if (ri->i_inline & F2FS_INLINE_DATA)
2918 set_bit(FI_INLINE_DATA, fi->flags);
2919 if (ri->i_inline & F2FS_INLINE_DENTRY)
2920 set_bit(FI_INLINE_DENTRY, fi->flags);
2921 if (ri->i_inline & F2FS_DATA_EXIST)
2922 set_bit(FI_DATA_EXIST, fi->flags);
2923 if (ri->i_inline & F2FS_INLINE_DOTS)
2924 set_bit(FI_INLINE_DOTS, fi->flags);
2925 if (ri->i_inline & F2FS_EXTRA_ATTR)
2926 set_bit(FI_EXTRA_ATTR, fi->flags);
2927 if (ri->i_inline & F2FS_PIN_FILE)
2928 set_bit(FI_PIN_FILE, fi->flags);
2929 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
2930 set_bit(FI_COMPRESS_RELEASED, fi->flags);
2933 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2937 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2938 ri->i_inline |= F2FS_INLINE_XATTR;
2939 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2940 ri->i_inline |= F2FS_INLINE_DATA;
2941 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2942 ri->i_inline |= F2FS_INLINE_DENTRY;
2943 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2944 ri->i_inline |= F2FS_DATA_EXIST;
2945 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2946 ri->i_inline |= F2FS_INLINE_DOTS;
2947 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2948 ri->i_inline |= F2FS_EXTRA_ATTR;
2949 if (is_inode_flag_set(inode, FI_PIN_FILE))
2950 ri->i_inline |= F2FS_PIN_FILE;
2951 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
2952 ri->i_inline |= F2FS_COMPRESS_RELEASED;
2955 static inline int f2fs_has_extra_attr(struct inode *inode)
2957 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2960 static inline int f2fs_has_inline_xattr(struct inode *inode)
2962 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2965 static inline int f2fs_compressed_file(struct inode *inode)
2967 return S_ISREG(inode->i_mode) &&
2968 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
2971 static inline bool f2fs_need_compress_data(struct inode *inode)
2973 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
2975 if (!f2fs_compressed_file(inode))
2978 if (compress_mode == COMPR_MODE_FS)
2980 else if (compress_mode == COMPR_MODE_USER &&
2981 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
2987 static inline unsigned int addrs_per_inode(struct inode *inode)
2989 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
2990 get_inline_xattr_addrs(inode);
2992 if (!f2fs_compressed_file(inode))
2994 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
2997 static inline unsigned int addrs_per_block(struct inode *inode)
2999 if (!f2fs_compressed_file(inode))
3000 return DEF_ADDRS_PER_BLOCK;
3001 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3004 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3006 struct f2fs_inode *ri = F2FS_INODE(page);
3008 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3009 get_inline_xattr_addrs(inode)]);
3012 static inline int inline_xattr_size(struct inode *inode)
3014 if (f2fs_has_inline_xattr(inode))
3015 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3019 static inline int f2fs_has_inline_data(struct inode *inode)
3021 return is_inode_flag_set(inode, FI_INLINE_DATA);
3024 static inline int f2fs_exist_data(struct inode *inode)
3026 return is_inode_flag_set(inode, FI_DATA_EXIST);
3029 static inline int f2fs_has_inline_dots(struct inode *inode)
3031 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3034 static inline int f2fs_is_mmap_file(struct inode *inode)
3036 return is_inode_flag_set(inode, FI_MMAP_FILE);
3039 static inline bool f2fs_is_pinned_file(struct inode *inode)
3041 return is_inode_flag_set(inode, FI_PIN_FILE);
3044 static inline bool f2fs_is_atomic_file(struct inode *inode)
3046 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3049 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
3051 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
3054 static inline bool f2fs_is_volatile_file(struct inode *inode)
3056 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
3059 static inline bool f2fs_is_first_block_written(struct inode *inode)
3061 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3064 static inline bool f2fs_is_drop_cache(struct inode *inode)
3066 return is_inode_flag_set(inode, FI_DROP_CACHE);
3069 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3071 struct f2fs_inode *ri = F2FS_INODE(page);
3072 int extra_size = get_extra_isize(inode);
3074 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3077 static inline int f2fs_has_inline_dentry(struct inode *inode)
3079 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3082 static inline int is_file(struct inode *inode, int type)
3084 return F2FS_I(inode)->i_advise & type;
3087 static inline void set_file(struct inode *inode, int type)
3089 F2FS_I(inode)->i_advise |= type;
3090 f2fs_mark_inode_dirty_sync(inode, true);
3093 static inline void clear_file(struct inode *inode, int type)
3095 F2FS_I(inode)->i_advise &= ~type;
3096 f2fs_mark_inode_dirty_sync(inode, true);
3099 static inline bool f2fs_is_time_consistent(struct inode *inode)
3101 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3103 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3105 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3107 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3108 &F2FS_I(inode)->i_crtime))
3113 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3118 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3120 spin_lock(&sbi->inode_lock[DIRTY_META]);
3121 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3122 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3125 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3126 file_keep_isize(inode) ||
3127 i_size_read(inode) & ~PAGE_MASK)
3130 if (!f2fs_is_time_consistent(inode))
3133 spin_lock(&F2FS_I(inode)->i_size_lock);
3134 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3135 spin_unlock(&F2FS_I(inode)->i_size_lock);
3140 static inline bool f2fs_readonly(struct super_block *sb)
3142 return sb_rdonly(sb);
3145 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3147 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3150 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3152 if (len == 1 && name[0] == '.')
3155 if (len == 2 && name[0] == '.' && name[1] == '.')
3161 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3162 size_t size, gfp_t flags)
3164 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3165 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3169 return kmalloc(size, flags);
3172 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3173 size_t size, gfp_t flags)
3175 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3178 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3179 size_t size, gfp_t flags)
3181 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3182 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3186 return kvmalloc(size, flags);
3189 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3190 size_t size, gfp_t flags)
3192 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3195 static inline int get_extra_isize(struct inode *inode)
3197 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3200 static inline int get_inline_xattr_addrs(struct inode *inode)
3202 return F2FS_I(inode)->i_inline_xattr_size;
3205 #define f2fs_get_inode_mode(i) \
3206 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3207 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3209 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3210 (offsetof(struct f2fs_inode, i_extra_end) - \
3211 offsetof(struct f2fs_inode, i_extra_isize)) \
3213 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3214 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3215 ((offsetof(typeof(*(f2fs_inode)), field) + \
3216 sizeof((f2fs_inode)->field)) \
3217 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3219 #define DEFAULT_IOSTAT_PERIOD_MS 3000
3220 #define MIN_IOSTAT_PERIOD_MS 100
3221 /* maximum period of iostat tracing is 1 day */
3222 #define MAX_IOSTAT_PERIOD_MS 8640000
3224 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
3228 spin_lock(&sbi->iostat_lock);
3229 for (i = 0; i < NR_IO_TYPE; i++) {
3230 sbi->rw_iostat[i] = 0;
3231 sbi->prev_rw_iostat[i] = 0;
3233 spin_unlock(&sbi->iostat_lock);
3236 extern void f2fs_record_iostat(struct f2fs_sb_info *sbi);
3238 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
3239 enum iostat_type type, unsigned long long io_bytes)
3241 if (!sbi->iostat_enable)
3243 spin_lock(&sbi->iostat_lock);
3244 sbi->rw_iostat[type] += io_bytes;
3246 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
3247 sbi->rw_iostat[APP_BUFFERED_IO] =
3248 sbi->rw_iostat[APP_WRITE_IO] -
3249 sbi->rw_iostat[APP_DIRECT_IO];
3251 if (type == APP_READ_IO || type == APP_DIRECT_READ_IO)
3252 sbi->rw_iostat[APP_BUFFERED_READ_IO] =
3253 sbi->rw_iostat[APP_READ_IO] -
3254 sbi->rw_iostat[APP_DIRECT_READ_IO];
3255 spin_unlock(&sbi->iostat_lock);
3257 f2fs_record_iostat(sbi);
3260 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3262 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3264 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3265 block_t blkaddr, int type);
3266 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3267 block_t blkaddr, int type)
3269 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3270 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3272 f2fs_bug_on(sbi, 1);
3276 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3278 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3279 blkaddr == COMPRESS_ADDR)
3287 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3288 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3289 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3290 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3291 int f2fs_truncate(struct inode *inode);
3292 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3293 struct kstat *stat, u32 request_mask, unsigned int flags);
3294 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3295 struct iattr *attr);
3296 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3297 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3298 int f2fs_precache_extents(struct inode *inode);
3299 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3300 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3301 struct dentry *dentry, struct fileattr *fa);
3302 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3303 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3304 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3305 int f2fs_pin_file_control(struct inode *inode, bool inc);
3310 void f2fs_set_inode_flags(struct inode *inode);
3311 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3312 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3313 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3314 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3315 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3316 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3317 void f2fs_update_inode_page(struct inode *inode);
3318 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3319 void f2fs_evict_inode(struct inode *inode);
3320 void f2fs_handle_failed_inode(struct inode *inode);
3325 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3326 bool hot, bool set);
3327 struct dentry *f2fs_get_parent(struct dentry *child);
3332 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3333 int f2fs_init_casefolded_name(const struct inode *dir,
3334 struct f2fs_filename *fname);
3335 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3336 int lookup, struct f2fs_filename *fname);
3337 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3338 struct f2fs_filename *fname);
3339 void f2fs_free_filename(struct f2fs_filename *fname);
3340 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3341 const struct f2fs_filename *fname, int *max_slots);
3342 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3343 unsigned int start_pos, struct fscrypt_str *fstr);
3344 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3345 struct f2fs_dentry_ptr *d);
3346 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3347 const struct f2fs_filename *fname, struct page *dpage);
3348 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3349 unsigned int current_depth);
3350 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3351 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3352 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3353 const struct f2fs_filename *fname,
3354 struct page **res_page);
3355 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3356 const struct qstr *child, struct page **res_page);
3357 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3358 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3359 struct page **page);
3360 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3361 struct page *page, struct inode *inode);
3362 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3363 const struct f2fs_filename *fname);
3364 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3365 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3366 unsigned int bit_pos);
3367 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3368 struct inode *inode, nid_t ino, umode_t mode);
3369 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3370 struct inode *inode, nid_t ino, umode_t mode);
3371 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3372 struct inode *inode, nid_t ino, umode_t mode);
3373 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3374 struct inode *dir, struct inode *inode);
3375 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3376 bool f2fs_empty_dir(struct inode *dir);
3378 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3380 if (fscrypt_is_nokey_name(dentry))
3382 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3383 inode, inode->i_ino, inode->i_mode);
3389 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3390 void f2fs_inode_synced(struct inode *inode);
3391 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3392 int f2fs_quota_sync(struct super_block *sb, int type);
3393 loff_t max_file_blocks(struct inode *inode);
3394 void f2fs_quota_off_umount(struct super_block *sb);
3395 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3396 int f2fs_sync_fs(struct super_block *sb, int sync);
3397 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3402 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3409 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3410 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3411 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3412 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3413 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3414 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3415 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3416 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3417 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3418 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3419 struct node_info *ni);
3420 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3421 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3422 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3423 int f2fs_truncate_xattr_node(struct inode *inode);
3424 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3425 unsigned int seq_id);
3426 int f2fs_remove_inode_page(struct inode *inode);
3427 struct page *f2fs_new_inode_page(struct inode *inode);
3428 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3429 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3430 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3431 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3432 int f2fs_move_node_page(struct page *node_page, int gc_type);
3433 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3434 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3435 struct writeback_control *wbc, bool atomic,
3436 unsigned int *seq_id);
3437 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3438 struct writeback_control *wbc,
3439 bool do_balance, enum iostat_type io_type);
3440 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3441 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3442 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3443 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3444 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3445 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3446 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3447 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3448 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3449 unsigned int segno, struct f2fs_summary_block *sum);
3450 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3451 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3452 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3453 int __init f2fs_create_node_manager_caches(void);
3454 void f2fs_destroy_node_manager_caches(void);
3459 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3460 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3461 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3462 void f2fs_drop_inmem_pages(struct inode *inode);
3463 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3464 int f2fs_commit_inmem_pages(struct inode *inode);
3465 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3466 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3467 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3468 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3469 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3470 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3471 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3472 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3473 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3474 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3475 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3476 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3477 struct cp_control *cpc);
3478 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3479 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3480 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3481 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3482 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3483 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3484 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3485 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3486 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3487 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3488 unsigned int *newseg, bool new_sec, int dir);
3489 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3490 unsigned int start, unsigned int end);
3491 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3492 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3493 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3494 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3495 struct cp_control *cpc);
3496 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3497 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3499 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3500 enum iostat_type io_type);
3501 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3502 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3503 struct f2fs_io_info *fio);
3504 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3505 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3506 block_t old_blkaddr, block_t new_blkaddr,
3507 bool recover_curseg, bool recover_newaddr,
3509 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3510 block_t old_addr, block_t new_addr,
3511 unsigned char version, bool recover_curseg,
3512 bool recover_newaddr);
3513 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3514 block_t old_blkaddr, block_t *new_blkaddr,
3515 struct f2fs_summary *sum, int type,
3516 struct f2fs_io_info *fio);
3517 void f2fs_wait_on_page_writeback(struct page *page,
3518 enum page_type type, bool ordered, bool locked);
3519 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3520 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3522 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3523 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3524 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3525 unsigned int val, int alloc);
3526 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3527 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3528 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3529 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3530 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3531 int __init f2fs_create_segment_manager_caches(void);
3532 void f2fs_destroy_segment_manager_caches(void);
3533 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3534 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3535 enum page_type type, enum temp_type temp);
3536 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3537 unsigned int segno);
3538 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3539 unsigned int segno);
3544 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3545 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3546 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3547 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3548 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3549 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3550 block_t blkaddr, int type);
3551 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3552 int type, bool sync);
3553 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3554 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3555 long nr_to_write, enum iostat_type io_type);
3556 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3557 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3558 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3559 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3560 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3561 unsigned int devidx, int type);
3562 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3563 unsigned int devidx, int type);
3564 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3565 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3566 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3567 void f2fs_add_orphan_inode(struct inode *inode);
3568 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3569 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3570 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3571 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3572 void f2fs_remove_dirty_inode(struct inode *inode);
3573 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3574 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3575 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3576 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3577 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3578 int __init f2fs_create_checkpoint_caches(void);
3579 void f2fs_destroy_checkpoint_caches(void);
3580 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3581 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3582 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3583 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3588 int __init f2fs_init_bioset(void);
3589 void f2fs_destroy_bioset(void);
3590 int f2fs_init_bio_entry_cache(void);
3591 void f2fs_destroy_bio_entry_cache(void);
3592 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3593 struct bio *bio, enum page_type type);
3594 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3595 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3596 struct inode *inode, struct page *page,
3597 nid_t ino, enum page_type type);
3598 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3599 struct bio **bio, struct page *page);
3600 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3601 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3602 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3603 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3604 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3605 block_t blk_addr, struct bio *bio);
3606 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3607 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3608 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3609 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3610 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3611 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3612 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3613 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3614 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3615 int op_flags, bool for_write);
3616 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3617 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3619 struct page *f2fs_get_new_data_page(struct inode *inode,
3620 struct page *ipage, pgoff_t index, bool new_i_size);
3621 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3622 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3623 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3624 int create, int flag);
3625 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3626 u64 start, u64 len);
3627 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3628 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3629 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3630 int f2fs_write_single_data_page(struct page *page, int *submitted,
3631 struct bio **bio, sector_t *last_block,
3632 struct writeback_control *wbc,
3633 enum iostat_type io_type,
3634 int compr_blocks, bool allow_balance);
3635 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3636 unsigned int length);
3637 int f2fs_release_page(struct page *page, gfp_t wait);
3638 #ifdef CONFIG_MIGRATION
3639 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3640 struct page *page, enum migrate_mode mode);
3642 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3643 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3644 int f2fs_init_post_read_processing(void);
3645 void f2fs_destroy_post_read_processing(void);
3646 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3647 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3652 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3653 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3654 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3655 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force,
3656 unsigned int segno);
3657 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3658 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3659 int __init f2fs_create_garbage_collection_cache(void);
3660 void f2fs_destroy_garbage_collection_cache(void);
3665 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3666 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3667 int __init f2fs_create_recovery_cache(void);
3668 void f2fs_destroy_recovery_cache(void);
3673 #ifdef CONFIG_F2FS_STAT_FS
3674 struct f2fs_stat_info {
3675 struct list_head stat_list;
3676 struct f2fs_sb_info *sbi;
3677 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3678 int main_area_segs, main_area_sections, main_area_zones;
3679 unsigned long long hit_largest, hit_cached, hit_rbtree;
3680 unsigned long long hit_total, total_ext;
3681 int ext_tree, zombie_tree, ext_node;
3682 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3683 int ndirty_data, ndirty_qdata;
3685 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3686 int nats, dirty_nats, sits, dirty_sits;
3687 int free_nids, avail_nids, alloc_nids;
3688 int total_count, utilization;
3689 int bg_gc, nr_wb_cp_data, nr_wb_data;
3690 int nr_rd_data, nr_rd_node, nr_rd_meta;
3691 int nr_dio_read, nr_dio_write;
3692 unsigned int io_skip_bggc, other_skip_bggc;
3693 int nr_flushing, nr_flushed, flush_list_empty;
3694 int nr_discarding, nr_discarded;
3696 unsigned int undiscard_blks;
3697 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3698 unsigned int cur_ckpt_time, peak_ckpt_time;
3699 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3701 unsigned long long compr_blocks;
3702 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3703 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3704 unsigned int bimodal, avg_vblocks;
3705 int util_free, util_valid, util_invalid;
3706 int rsvd_segs, overp_segs;
3707 int dirty_count, node_pages, meta_pages, compress_pages;
3708 int compress_page_hit;
3709 int prefree_count, call_count, cp_count, bg_cp_count;
3710 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3711 int bg_node_segs, bg_data_segs;
3712 int tot_blks, data_blks, node_blks;
3713 int bg_data_blks, bg_node_blks;
3714 unsigned long long skipped_atomic_files[2];
3715 int curseg[NR_CURSEG_TYPE];
3716 int cursec[NR_CURSEG_TYPE];
3717 int curzone[NR_CURSEG_TYPE];
3718 unsigned int dirty_seg[NR_CURSEG_TYPE];
3719 unsigned int full_seg[NR_CURSEG_TYPE];
3720 unsigned int valid_blks[NR_CURSEG_TYPE];
3722 unsigned int meta_count[META_MAX];
3723 unsigned int segment_count[2];
3724 unsigned int block_count[2];
3725 unsigned int inplace_count;
3726 unsigned long long base_mem, cache_mem, page_mem;
3729 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3731 return (struct f2fs_stat_info *)sbi->stat_info;
3734 #define stat_inc_cp_count(si) ((si)->cp_count++)
3735 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3736 #define stat_inc_call_count(si) ((si)->call_count++)
3737 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3738 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3739 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3740 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3741 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3742 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3743 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3744 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3745 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3746 #define stat_inc_inline_xattr(inode) \
3748 if (f2fs_has_inline_xattr(inode)) \
3749 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3751 #define stat_dec_inline_xattr(inode) \
3753 if (f2fs_has_inline_xattr(inode)) \
3754 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3756 #define stat_inc_inline_inode(inode) \
3758 if (f2fs_has_inline_data(inode)) \
3759 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3761 #define stat_dec_inline_inode(inode) \
3763 if (f2fs_has_inline_data(inode)) \
3764 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3766 #define stat_inc_inline_dir(inode) \
3768 if (f2fs_has_inline_dentry(inode)) \
3769 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3771 #define stat_dec_inline_dir(inode) \
3773 if (f2fs_has_inline_dentry(inode)) \
3774 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3776 #define stat_inc_compr_inode(inode) \
3778 if (f2fs_compressed_file(inode)) \
3779 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3781 #define stat_dec_compr_inode(inode) \
3783 if (f2fs_compressed_file(inode)) \
3784 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3786 #define stat_add_compr_blocks(inode, blocks) \
3787 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3788 #define stat_sub_compr_blocks(inode, blocks) \
3789 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3790 #define stat_inc_meta_count(sbi, blkaddr) \
3792 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3793 atomic_inc(&(sbi)->meta_count[META_CP]); \
3794 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3795 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3796 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3797 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3798 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3799 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3801 #define stat_inc_seg_type(sbi, curseg) \
3802 ((sbi)->segment_count[(curseg)->alloc_type]++)
3803 #define stat_inc_block_count(sbi, curseg) \
3804 ((sbi)->block_count[(curseg)->alloc_type]++)
3805 #define stat_inc_inplace_blocks(sbi) \
3806 (atomic_inc(&(sbi)->inplace_count))
3807 #define stat_update_max_atomic_write(inode) \
3809 int cur = F2FS_I_SB(inode)->atomic_files; \
3810 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3812 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3814 #define stat_inc_volatile_write(inode) \
3815 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3816 #define stat_dec_volatile_write(inode) \
3817 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3818 #define stat_update_max_volatile_write(inode) \
3820 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3821 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3823 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3825 #define stat_inc_seg_count(sbi, type, gc_type) \
3827 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3829 if ((type) == SUM_TYPE_DATA) { \
3831 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3834 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3838 #define stat_inc_tot_blk_count(si, blks) \
3839 ((si)->tot_blks += (blks))
3841 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3843 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3844 stat_inc_tot_blk_count(si, blks); \
3845 si->data_blks += (blks); \
3846 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3849 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3851 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3852 stat_inc_tot_blk_count(si, blks); \
3853 si->node_blks += (blks); \
3854 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3857 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3858 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3859 void __init f2fs_create_root_stats(void);
3860 void f2fs_destroy_root_stats(void);
3861 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
3863 #define stat_inc_cp_count(si) do { } while (0)
3864 #define stat_inc_bg_cp_count(si) do { } while (0)
3865 #define stat_inc_call_count(si) do { } while (0)
3866 #define stat_inc_bggc_count(si) do { } while (0)
3867 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3868 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3869 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3870 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3871 #define stat_inc_total_hit(sbi) do { } while (0)
3872 #define stat_inc_rbtree_node_hit(sbi) do { } while (0)
3873 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3874 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3875 #define stat_inc_inline_xattr(inode) do { } while (0)
3876 #define stat_dec_inline_xattr(inode) do { } while (0)
3877 #define stat_inc_inline_inode(inode) do { } while (0)
3878 #define stat_dec_inline_inode(inode) do { } while (0)
3879 #define stat_inc_inline_dir(inode) do { } while (0)
3880 #define stat_dec_inline_dir(inode) do { } while (0)
3881 #define stat_inc_compr_inode(inode) do { } while (0)
3882 #define stat_dec_compr_inode(inode) do { } while (0)
3883 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
3884 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
3885 #define stat_update_max_atomic_write(inode) do { } while (0)
3886 #define stat_inc_volatile_write(inode) do { } while (0)
3887 #define stat_dec_volatile_write(inode) do { } while (0)
3888 #define stat_update_max_volatile_write(inode) do { } while (0)
3889 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3890 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3891 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3892 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3893 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3894 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3895 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3896 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3898 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3899 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3900 static inline void __init f2fs_create_root_stats(void) { }
3901 static inline void f2fs_destroy_root_stats(void) { }
3902 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
3905 extern const struct file_operations f2fs_dir_operations;
3906 extern const struct file_operations f2fs_file_operations;
3907 extern const struct inode_operations f2fs_file_inode_operations;
3908 extern const struct address_space_operations f2fs_dblock_aops;
3909 extern const struct address_space_operations f2fs_node_aops;
3910 extern const struct address_space_operations f2fs_meta_aops;
3911 extern const struct inode_operations f2fs_dir_inode_operations;
3912 extern const struct inode_operations f2fs_symlink_inode_operations;
3913 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3914 extern const struct inode_operations f2fs_special_inode_operations;
3915 extern struct kmem_cache *f2fs_inode_entry_slab;
3920 bool f2fs_may_inline_data(struct inode *inode);
3921 bool f2fs_may_inline_dentry(struct inode *inode);
3922 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3923 void f2fs_truncate_inline_inode(struct inode *inode,
3924 struct page *ipage, u64 from);
3925 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3926 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3927 int f2fs_convert_inline_inode(struct inode *inode);
3928 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
3929 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3930 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3931 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3932 const struct f2fs_filename *fname,
3933 struct page **res_page);
3934 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3935 struct page *ipage);
3936 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
3937 struct inode *inode, nid_t ino, umode_t mode);
3938 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3939 struct page *page, struct inode *dir,
3940 struct inode *inode);
3941 bool f2fs_empty_inline_dir(struct inode *dir);
3942 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3943 struct fscrypt_str *fstr);
3944 int f2fs_inline_data_fiemap(struct inode *inode,
3945 struct fiemap_extent_info *fieinfo,
3946 __u64 start, __u64 len);
3951 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3952 struct shrink_control *sc);
3953 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3954 struct shrink_control *sc);
3955 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3956 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3961 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3962 struct rb_entry *cached_re, unsigned int ofs);
3963 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
3964 struct rb_root_cached *root,
3965 struct rb_node **parent,
3966 unsigned long long key, bool *left_most);
3967 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3968 struct rb_root_cached *root,
3969 struct rb_node **parent,
3970 unsigned int ofs, bool *leftmost);
3971 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
3972 struct rb_entry *cached_re, unsigned int ofs,
3973 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3974 struct rb_node ***insert_p, struct rb_node **insert_parent,
3975 bool force, bool *leftmost);
3976 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3977 struct rb_root_cached *root, bool check_key);
3978 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3979 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
3980 void f2fs_drop_extent_tree(struct inode *inode);
3981 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3982 void f2fs_destroy_extent_tree(struct inode *inode);
3983 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3984 struct extent_info *ei);
3985 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3986 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3987 pgoff_t fofs, block_t blkaddr, unsigned int len);
3988 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3989 int __init f2fs_create_extent_cache(void);
3990 void f2fs_destroy_extent_cache(void);
3995 int __init f2fs_init_sysfs(void);
3996 void f2fs_exit_sysfs(void);
3997 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3998 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4001 extern const struct fsverity_operations f2fs_verityops;
4006 static inline bool f2fs_encrypted_file(struct inode *inode)
4008 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4011 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4013 #ifdef CONFIG_FS_ENCRYPTION
4014 file_set_encrypt(inode);
4015 f2fs_set_inode_flags(inode);
4020 * Returns true if the reads of the inode's data need to undergo some
4021 * postprocessing step, like decryption or authenticity verification.
4023 static inline bool f2fs_post_read_required(struct inode *inode)
4025 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4026 f2fs_compressed_file(inode);
4032 #ifdef CONFIG_F2FS_FS_COMPRESSION
4033 bool f2fs_is_compressed_page(struct page *page);
4034 struct page *f2fs_compress_control_page(struct page *page);
4035 int f2fs_prepare_compress_overwrite(struct inode *inode,
4036 struct page **pagep, pgoff_t index, void **fsdata);
4037 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4038 pgoff_t index, unsigned copied);
4039 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4040 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4041 bool f2fs_is_compress_backend_ready(struct inode *inode);
4042 int f2fs_init_compress_mempool(void);
4043 void f2fs_destroy_compress_mempool(void);
4044 void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
4045 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4047 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4048 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4049 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4050 int f2fs_write_multi_pages(struct compress_ctx *cc,
4052 struct writeback_control *wbc,
4053 enum iostat_type io_type);
4054 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4055 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4056 unsigned nr_pages, sector_t *last_block_in_bio,
4057 bool is_readahead, bool for_write);
4058 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4059 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
4060 void f2fs_put_page_dic(struct page *page);
4061 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4062 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4063 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4064 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4065 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4066 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4067 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4068 int __init f2fs_init_compress_cache(void);
4069 void f2fs_destroy_compress_cache(void);
4070 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4071 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4072 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4073 nid_t ino, block_t blkaddr);
4074 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4076 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4077 #define inc_compr_inode_stat(inode) \
4079 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4080 sbi->compr_new_inode++; \
4082 #define add_compr_block_stat(inode, blocks) \
4084 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4085 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4086 sbi->compr_written_block += blocks; \
4087 sbi->compr_saved_block += diff; \
4090 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4091 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4093 if (!f2fs_compressed_file(inode))
4095 /* not support compression */
4098 static inline struct page *f2fs_compress_control_page(struct page *page)
4101 return ERR_PTR(-EINVAL);
4103 static inline int f2fs_init_compress_mempool(void) { return 0; }
4104 static inline void f2fs_destroy_compress_mempool(void) { }
4105 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
4106 static inline void f2fs_end_read_compressed_page(struct page *page,
4107 bool failed, block_t blkaddr)
4111 static inline void f2fs_put_page_dic(struct page *page)
4115 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4116 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4117 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4118 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4119 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4120 static inline void f2fs_destroy_compress_cache(void) { }
4121 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4122 block_t blkaddr) { }
4123 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4124 struct page *page, nid_t ino, block_t blkaddr) { }
4125 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4126 struct page *page, block_t blkaddr) { return false; }
4127 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4129 #define inc_compr_inode_stat(inode) do { } while (0)
4132 static inline void set_compress_context(struct inode *inode)
4134 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4136 F2FS_I(inode)->i_compress_algorithm =
4137 F2FS_OPTION(sbi).compress_algorithm;
4138 F2FS_I(inode)->i_log_cluster_size =
4139 F2FS_OPTION(sbi).compress_log_size;
4140 F2FS_I(inode)->i_compress_flag =
4141 F2FS_OPTION(sbi).compress_chksum ?
4142 1 << COMPRESS_CHKSUM : 0;
4143 F2FS_I(inode)->i_cluster_size =
4144 1 << F2FS_I(inode)->i_log_cluster_size;
4145 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4146 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4147 F2FS_OPTION(sbi).compress_level)
4148 F2FS_I(inode)->i_compress_flag |=
4149 F2FS_OPTION(sbi).compress_level <<
4150 COMPRESS_LEVEL_OFFSET;
4151 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4152 set_inode_flag(inode, FI_COMPRESSED_FILE);
4153 stat_inc_compr_inode(inode);
4154 inc_compr_inode_stat(inode);
4155 f2fs_mark_inode_dirty_sync(inode, true);
4158 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4160 struct f2fs_inode_info *fi = F2FS_I(inode);
4162 if (!f2fs_compressed_file(inode))
4164 if (S_ISREG(inode->i_mode) &&
4165 (get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks)))
4168 fi->i_flags &= ~F2FS_COMPR_FL;
4169 stat_dec_compr_inode(inode);
4170 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4171 f2fs_mark_inode_dirty_sync(inode, true);
4175 #define F2FS_FEATURE_FUNCS(name, flagname) \
4176 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4178 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4181 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4182 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4183 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4184 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4185 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4186 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4187 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4188 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4189 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4190 F2FS_FEATURE_FUNCS(verity, VERITY);
4191 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4192 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4193 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4194 F2FS_FEATURE_FUNCS(readonly, RO);
4196 static inline bool f2fs_may_extent_tree(struct inode *inode)
4198 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4200 if (!test_opt(sbi, EXTENT_CACHE) ||
4201 is_inode_flag_set(inode, FI_NO_EXTENT) ||
4202 (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
4203 !f2fs_sb_has_readonly(sbi)))
4207 * for recovered files during mount do not create extents
4208 * if shrinker is not registered.
4210 if (list_empty(&sbi->s_list))
4213 return S_ISREG(inode->i_mode);
4216 #ifdef CONFIG_BLK_DEV_ZONED
4217 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4220 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4222 return test_bit(zno, FDEV(devi).blkz_seq);
4226 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4228 return f2fs_sb_has_blkzoned(sbi);
4231 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4233 return blk_queue_discard(bdev_get_queue(bdev)) ||
4234 bdev_is_zoned(bdev);
4237 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4241 if (!f2fs_is_multi_device(sbi))
4242 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4244 for (i = 0; i < sbi->s_ndevs; i++)
4245 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4250 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4252 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4253 f2fs_hw_should_discard(sbi);
4256 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4260 if (!f2fs_is_multi_device(sbi))
4261 return bdev_read_only(sbi->sb->s_bdev);
4263 for (i = 0; i < sbi->s_ndevs; i++)
4264 if (bdev_read_only(FDEV(i).bdev))
4269 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4271 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4274 static inline bool f2fs_may_compress(struct inode *inode)
4276 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4277 f2fs_is_atomic_file(inode) ||
4278 f2fs_is_volatile_file(inode))
4280 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4283 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4284 u64 blocks, bool add)
4286 int diff = F2FS_I(inode)->i_cluster_size - blocks;
4287 struct f2fs_inode_info *fi = F2FS_I(inode);
4289 /* don't update i_compr_blocks if saved blocks were released */
4290 if (!add && !atomic_read(&fi->i_compr_blocks))
4294 atomic_add(diff, &fi->i_compr_blocks);
4295 stat_add_compr_blocks(inode, diff);
4297 atomic_sub(diff, &fi->i_compr_blocks);
4298 stat_sub_compr_blocks(inode, diff);
4300 f2fs_mark_inode_dirty_sync(inode, true);
4303 static inline int block_unaligned_IO(struct inode *inode,
4304 struct kiocb *iocb, struct iov_iter *iter)
4306 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4307 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4308 loff_t offset = iocb->ki_pos;
4309 unsigned long align = offset | iov_iter_alignment(iter);
4311 return align & blocksize_mask;
4314 static inline bool f2fs_force_buffered_io(struct inode *inode,
4315 struct kiocb *iocb, struct iov_iter *iter)
4317 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4318 int rw = iov_iter_rw(iter);
4320 if (f2fs_post_read_required(inode))
4322 if (f2fs_is_multi_device(sbi))
4325 * for blkzoned device, fallback direct IO to buffered IO, so
4326 * all IOs can be serialized by log-structured write.
4328 if (f2fs_sb_has_blkzoned(sbi))
4330 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4331 if (block_unaligned_IO(inode, iocb, iter))
4333 if (F2FS_IO_ALIGNED(sbi))
4336 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
4342 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4344 return fsverity_active(inode) &&
4345 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4348 #ifdef CONFIG_F2FS_FAULT_INJECTION
4349 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4352 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4355 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4358 if (f2fs_sb_has_quota_ino(sbi))
4360 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4361 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4362 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4368 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4369 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4371 #endif /* _LINUX_F2FS_H */