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); \
46 FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
62 #ifdef CONFIG_F2FS_FAULT_INJECTION
63 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
65 struct f2fs_fault_info {
67 unsigned int inject_rate;
68 unsigned int inject_type;
71 extern const char *f2fs_fault_name[FAULT_MAX];
72 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
78 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
79 #define F2FS_MOUNT_DISCARD 0x00000004
80 #define F2FS_MOUNT_NOHEAP 0x00000008
81 #define F2FS_MOUNT_XATTR_USER 0x00000010
82 #define F2FS_MOUNT_POSIX_ACL 0x00000020
83 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
84 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
85 #define F2FS_MOUNT_INLINE_DATA 0x00000100
86 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
87 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
88 #define F2FS_MOUNT_NOBARRIER 0x00000800
89 #define F2FS_MOUNT_FASTBOOT 0x00001000
90 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
91 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
92 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
93 #define F2FS_MOUNT_USRQUOTA 0x00080000
94 #define F2FS_MOUNT_GRPQUOTA 0x00100000
95 #define F2FS_MOUNT_PRJQUOTA 0x00200000
96 #define F2FS_MOUNT_QUOTA 0x00400000
97 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
98 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
99 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
100 #define F2FS_MOUNT_NORECOVERY 0x04000000
101 #define F2FS_MOUNT_ATGC 0x08000000
102 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
103 #define F2FS_MOUNT_GC_MERGE 0x20000000
104 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
106 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
107 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
108 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
109 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
111 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
112 typecheck(unsigned long long, b) && \
113 ((long long)((a) - (b)) > 0))
115 typedef u32 block_t; /*
116 * should not change u32, since it is the on-disk block
117 * address format, __le32.
121 #define COMPRESS_EXT_NUM 16
123 struct f2fs_mount_info {
125 int write_io_size_bits; /* Write IO size bits */
126 block_t root_reserved_blocks; /* root reserved blocks */
127 kuid_t s_resuid; /* reserved blocks for uid */
128 kgid_t s_resgid; /* reserved blocks for gid */
129 int active_logs; /* # of active logs */
130 int inline_xattr_size; /* inline xattr size */
131 #ifdef CONFIG_F2FS_FAULT_INJECTION
132 struct f2fs_fault_info fault_info; /* For fault injection */
135 /* Names of quota files with journalled quota */
136 char *s_qf_names[MAXQUOTAS];
137 int s_jquota_fmt; /* Format of quota to use */
139 /* For which write hints are passed down to block layer */
141 int alloc_mode; /* segment allocation policy */
142 int fsync_mode; /* fsync policy */
143 int fs_mode; /* fs mode: LFS or ADAPTIVE */
144 int bggc_mode; /* bggc mode: off, on or sync */
146 * discard command's offset/size should
147 * be aligned to this unit: block,
150 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
151 block_t unusable_cap_perc; /* percentage for cap */
152 block_t unusable_cap; /* Amount of space allowed to be
153 * unusable when disabling checkpoint
156 /* For compression */
157 unsigned char compress_algorithm; /* algorithm type */
158 unsigned char compress_log_size; /* cluster log size */
159 unsigned char compress_level; /* compress level */
160 bool compress_chksum; /* compressed data chksum */
161 unsigned char compress_ext_cnt; /* extension count */
162 unsigned char nocompress_ext_cnt; /* nocompress extension count */
163 int compress_mode; /* compression mode */
164 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
165 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
168 #define F2FS_FEATURE_ENCRYPT 0x0001
169 #define F2FS_FEATURE_BLKZONED 0x0002
170 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
171 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
172 #define F2FS_FEATURE_PRJQUOTA 0x0010
173 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
174 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
175 #define F2FS_FEATURE_QUOTA_INO 0x0080
176 #define F2FS_FEATURE_INODE_CRTIME 0x0100
177 #define F2FS_FEATURE_LOST_FOUND 0x0200
178 #define F2FS_FEATURE_VERITY 0x0400
179 #define F2FS_FEATURE_SB_CHKSUM 0x0800
180 #define F2FS_FEATURE_CASEFOLD 0x1000
181 #define F2FS_FEATURE_COMPRESSION 0x2000
182 #define F2FS_FEATURE_RO 0x4000
184 #define __F2FS_HAS_FEATURE(raw_super, mask) \
185 ((raw_super->feature & cpu_to_le32(mask)) != 0)
186 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
187 #define F2FS_SET_FEATURE(sbi, mask) \
188 (sbi->raw_super->feature |= cpu_to_le32(mask))
189 #define F2FS_CLEAR_FEATURE(sbi, mask) \
190 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
193 * Default values for user and/or group using reserved blocks
195 #define F2FS_DEF_RESUID 0
196 #define F2FS_DEF_RESGID 0
199 * For checkpoint manager
206 #define CP_UMOUNT 0x00000001
207 #define CP_FASTBOOT 0x00000002
208 #define CP_SYNC 0x00000004
209 #define CP_RECOVERY 0x00000008
210 #define CP_DISCARD 0x00000010
211 #define CP_TRIMMED 0x00000020
212 #define CP_PAUSE 0x00000040
213 #define CP_RESIZE 0x00000080
215 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
216 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
217 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
218 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
219 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
220 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
221 #define DEF_CP_INTERVAL 60 /* 60 secs */
222 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
223 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
224 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
225 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
235 * indicate meta/data type
244 DATA_GENERIC, /* check range only */
245 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
246 DATA_GENERIC_ENHANCE_READ, /*
247 * strong check on range and segment
248 * bitmap but no warning due to race
249 * condition of read on truncated area
252 DATA_GENERIC_ENHANCE_UPDATE, /*
253 * strong check on range and segment
254 * bitmap for update case
259 /* for the list of ino */
261 ORPHAN_INO, /* for orphan ino list */
262 APPEND_INO, /* for append ino list */
263 UPDATE_INO, /* for update ino list */
264 TRANS_DIR_INO, /* for trasactions dir ino list */
265 FLUSH_INO, /* for multiple device flushing */
266 MAX_INO_ENTRY, /* max. list */
270 struct list_head list; /* list head */
271 nid_t ino; /* inode number */
272 unsigned int dirty_device; /* dirty device bitmap */
275 /* for the list of inodes to be GCed */
277 struct list_head list; /* list head */
278 struct inode *inode; /* vfs inode pointer */
281 struct fsync_node_entry {
282 struct list_head list; /* list head */
283 struct page *page; /* warm node page pointer */
284 unsigned int seq_id; /* sequence id */
288 struct completion wait; /* completion for checkpoint done */
289 struct llist_node llnode; /* llist_node to be linked in wait queue */
290 int ret; /* return code of checkpoint */
291 ktime_t queue_time; /* request queued time */
294 struct ckpt_req_control {
295 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
296 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
297 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
298 atomic_t issued_ckpt; /* # of actually issued ckpts */
299 atomic_t total_ckpt; /* # of total ckpts */
300 atomic_t queued_ckpt; /* # of queued ckpts */
301 struct llist_head issue_list; /* list for command issue */
302 spinlock_t stat_lock; /* lock for below checkpoint time stats */
303 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
304 unsigned int peak_time; /* peak wait time in msec until now */
307 /* for the bitmap indicate blocks to be discarded */
308 struct discard_entry {
309 struct list_head list; /* list head */
310 block_t start_blkaddr; /* start blockaddr of current segment */
311 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
314 /* default discard granularity of inner discard thread, unit: block count */
315 #define DEFAULT_DISCARD_GRANULARITY 16
317 /* max discard pend list number */
318 #define MAX_PLIST_NUM 512
319 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
320 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
323 D_PREP, /* initial */
324 D_PARTIAL, /* partially submitted */
325 D_SUBMIT, /* all submitted */
326 D_DONE, /* finished */
329 struct discard_info {
330 block_t lstart; /* logical start address */
331 block_t len; /* length */
332 block_t start; /* actual start address in dev */
336 struct rb_node rb_node; /* rb node located in rb-tree */
339 block_t lstart; /* logical start address */
340 block_t len; /* length */
341 block_t start; /* actual start address in dev */
343 struct discard_info di; /* discard info */
346 struct list_head list; /* command list */
347 struct completion wait; /* compleation */
348 struct block_device *bdev; /* bdev */
349 unsigned short ref; /* reference count */
350 unsigned char state; /* state */
351 unsigned char queued; /* queued discard */
352 int error; /* bio error */
353 spinlock_t lock; /* for state/bio_ref updating */
354 unsigned short bio_ref; /* bio reference count */
365 struct discard_policy {
366 int type; /* type of discard */
367 unsigned int min_interval; /* used for candidates exist */
368 unsigned int mid_interval; /* used for device busy */
369 unsigned int max_interval; /* used for candidates not exist */
370 unsigned int max_requests; /* # of discards issued per round */
371 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
372 bool io_aware; /* issue discard in idle time */
373 bool sync; /* submit discard with REQ_SYNC flag */
374 bool ordered; /* issue discard by lba order */
375 bool timeout; /* discard timeout for put_super */
376 unsigned int granularity; /* discard granularity */
379 struct discard_cmd_control {
380 struct task_struct *f2fs_issue_discard; /* discard thread */
381 struct list_head entry_list; /* 4KB discard entry list */
382 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
383 struct list_head wait_list; /* store on-flushing entries */
384 struct list_head fstrim_list; /* in-flight discard from fstrim */
385 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
386 unsigned int discard_wake; /* to wake up discard thread */
387 struct mutex cmd_lock;
388 unsigned int nr_discards; /* # of discards in the list */
389 unsigned int max_discards; /* max. discards to be issued */
390 unsigned int discard_granularity; /* discard granularity */
391 unsigned int undiscard_blks; /* # of undiscard blocks */
392 unsigned int next_pos; /* next discard position */
393 atomic_t issued_discard; /* # of issued discard */
394 atomic_t queued_discard; /* # of queued discard */
395 atomic_t discard_cmd_cnt; /* # of cached cmd count */
396 struct rb_root_cached root; /* root of discard rb-tree */
397 bool rbtree_check; /* config for consistence check */
400 /* for the list of fsync inodes, used only during recovery */
401 struct fsync_inode_entry {
402 struct list_head list; /* list head */
403 struct inode *inode; /* vfs inode pointer */
404 block_t blkaddr; /* block address locating the last fsync */
405 block_t last_dentry; /* block address locating the last dentry */
408 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
409 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
411 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
412 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
413 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
414 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
416 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
417 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
419 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
421 int before = nats_in_cursum(journal);
423 journal->n_nats = cpu_to_le16(before + i);
427 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
429 int before = sits_in_cursum(journal);
431 journal->n_sits = cpu_to_le16(before + i);
435 static inline bool __has_cursum_space(struct f2fs_journal *journal,
438 if (type == NAT_JOURNAL)
439 return size <= MAX_NAT_JENTRIES(journal);
440 return size <= MAX_SIT_JENTRIES(journal);
443 /* for inline stuff */
444 #define DEF_INLINE_RESERVED_SIZE 1
445 static inline int get_extra_isize(struct inode *inode);
446 static inline int get_inline_xattr_addrs(struct inode *inode);
447 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
448 (CUR_ADDRS_PER_INODE(inode) - \
449 get_inline_xattr_addrs(inode) - \
450 DEF_INLINE_RESERVED_SIZE))
453 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
454 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
456 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
457 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
458 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
459 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
460 NR_INLINE_DENTRY(inode) + \
461 INLINE_DENTRY_BITMAP_SIZE(inode)))
464 * For INODE and NODE manager
466 /* for directory operations */
468 struct f2fs_filename {
470 * The filename the user specified. This is NULL for some
471 * filesystem-internal operations, e.g. converting an inline directory
472 * to a non-inline one, or roll-forward recovering an encrypted dentry.
474 const struct qstr *usr_fname;
477 * The on-disk filename. For encrypted directories, this is encrypted.
478 * This may be NULL for lookups in an encrypted dir without the key.
480 struct fscrypt_str disk_name;
482 /* The dirhash of this filename */
485 #ifdef CONFIG_FS_ENCRYPTION
487 * For lookups in encrypted directories: either the buffer backing
488 * disk_name, or a buffer that holds the decoded no-key name.
490 struct fscrypt_str crypto_buf;
492 #ifdef CONFIG_UNICODE
494 * For casefolded directories: the casefolded name, but it's left NULL
495 * if the original name is not valid Unicode, if the original name is
496 * "." or "..", if the directory is both casefolded and encrypted and
497 * its encryption key is unavailable, or if the filesystem is doing an
498 * internal operation where usr_fname is also NULL. In all these cases
499 * we fall back to treating the name as an opaque byte sequence.
501 struct fscrypt_str cf_name;
505 struct f2fs_dentry_ptr {
508 struct f2fs_dir_entry *dentry;
509 __u8 (*filename)[F2FS_SLOT_LEN];
514 static inline void make_dentry_ptr_block(struct inode *inode,
515 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
518 d->max = NR_DENTRY_IN_BLOCK;
519 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
520 d->bitmap = t->dentry_bitmap;
521 d->dentry = t->dentry;
522 d->filename = t->filename;
525 static inline void make_dentry_ptr_inline(struct inode *inode,
526 struct f2fs_dentry_ptr *d, void *t)
528 int entry_cnt = NR_INLINE_DENTRY(inode);
529 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
530 int reserved_size = INLINE_RESERVED_SIZE(inode);
534 d->nr_bitmap = bitmap_size;
536 d->dentry = t + bitmap_size + reserved_size;
537 d->filename = t + bitmap_size + reserved_size +
538 SIZE_OF_DIR_ENTRY * entry_cnt;
542 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
543 * as its node offset to distinguish from index node blocks.
544 * But some bits are used to mark the node block.
546 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
549 ALLOC_NODE, /* allocate a new node page if needed */
550 LOOKUP_NODE, /* look up a node without readahead */
552 * look up a node with readahead called
557 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
559 /* congestion wait timeout value, default: 20ms */
560 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
562 /* maximum retry quota flush count */
563 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
565 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
567 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
569 /* for in-memory extent cache entry */
570 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
572 /* number of extent info in extent cache we try to shrink */
573 #define EXTENT_CACHE_SHRINK_NUMBER 128
576 struct rb_node rb_node; /* rb node located in rb-tree */
579 unsigned int ofs; /* start offset of the entry */
580 unsigned int len; /* length of the entry */
582 unsigned long long key; /* 64-bits key */
587 unsigned int fofs; /* start offset in a file */
588 unsigned int len; /* length of the extent */
589 u32 blk; /* start block address of the extent */
590 #ifdef CONFIG_F2FS_FS_COMPRESSION
591 unsigned int c_len; /* physical extent length of compressed blocks */
596 struct rb_node rb_node; /* rb node located in rb-tree */
597 struct extent_info ei; /* extent info */
598 struct list_head list; /* node in global extent list of sbi */
599 struct extent_tree *et; /* extent tree pointer */
603 nid_t ino; /* inode number */
604 struct rb_root_cached root; /* root of extent info rb-tree */
605 struct extent_node *cached_en; /* recently accessed extent node */
606 struct extent_info largest; /* largested extent info */
607 struct list_head list; /* to be used by sbi->zombie_list */
608 rwlock_t lock; /* protect extent info rb-tree */
609 atomic_t node_cnt; /* # of extent node in rb-tree*/
610 bool largest_updated; /* largest extent updated */
614 * This structure is taken from ext4_map_blocks.
616 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
618 #define F2FS_MAP_NEW (1 << BH_New)
619 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
620 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
621 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
624 struct f2fs_map_blocks {
628 unsigned int m_flags;
629 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
630 pgoff_t *m_next_extent; /* point to next possible extent */
632 bool m_may_create; /* indicate it is from write path */
635 /* for flag in get_data_block */
637 F2FS_GET_BLOCK_DEFAULT,
638 F2FS_GET_BLOCK_FIEMAP,
641 F2FS_GET_BLOCK_PRE_DIO,
642 F2FS_GET_BLOCK_PRE_AIO,
643 F2FS_GET_BLOCK_PRECACHE,
647 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
649 #define FADVISE_COLD_BIT 0x01
650 #define FADVISE_LOST_PINO_BIT 0x02
651 #define FADVISE_ENCRYPT_BIT 0x04
652 #define FADVISE_ENC_NAME_BIT 0x08
653 #define FADVISE_KEEP_SIZE_BIT 0x10
654 #define FADVISE_HOT_BIT 0x20
655 #define FADVISE_VERITY_BIT 0x40
657 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
659 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
660 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
661 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
663 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
664 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
665 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
667 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
668 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
670 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
671 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
673 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
674 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
676 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
677 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
678 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
680 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
681 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
683 #define DEF_DIR_LEVEL 0
691 /* used for f2fs_inode_info->flags */
693 FI_NEW_INODE, /* indicate newly allocated inode */
694 FI_DIRTY_INODE, /* indicate inode is dirty or not */
695 FI_AUTO_RECOVER, /* indicate inode is recoverable */
696 FI_DIRTY_DIR, /* indicate directory has dirty pages */
697 FI_INC_LINK, /* need to increment i_nlink */
698 FI_ACL_MODE, /* indicate acl mode */
699 FI_NO_ALLOC, /* should not allocate any blocks */
700 FI_FREE_NID, /* free allocated nide */
701 FI_NO_EXTENT, /* not to use the extent cache */
702 FI_INLINE_XATTR, /* used for inline xattr */
703 FI_INLINE_DATA, /* used for inline data*/
704 FI_INLINE_DENTRY, /* used for inline dentry */
705 FI_APPEND_WRITE, /* inode has appended data */
706 FI_UPDATE_WRITE, /* inode has in-place-update data */
707 FI_NEED_IPU, /* used for ipu per file */
708 FI_ATOMIC_FILE, /* indicate atomic file */
709 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
710 FI_VOLATILE_FILE, /* indicate volatile file */
711 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
712 FI_DROP_CACHE, /* drop dirty page cache */
713 FI_DATA_EXIST, /* indicate data exists */
714 FI_INLINE_DOTS, /* indicate inline dot dentries */
715 FI_DO_DEFRAG, /* indicate defragment is running */
716 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
717 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
718 FI_HOT_DATA, /* indicate file is hot */
719 FI_EXTRA_ATTR, /* indicate file has extra attribute */
720 FI_PROJ_INHERIT, /* indicate file inherits projectid */
721 FI_PIN_FILE, /* indicate file should not be gced */
722 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
723 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
724 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
725 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
726 FI_MMAP_FILE, /* indicate file was mmapped */
727 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
728 FI_COMPRESS_RELEASED, /* compressed blocks were released */
729 FI_ALIGNED_WRITE, /* enable aligned write */
730 FI_MAX, /* max flag, never be used */
733 struct f2fs_inode_info {
734 struct inode vfs_inode; /* serve a vfs inode */
735 unsigned long i_flags; /* keep an inode flags for ioctl */
736 unsigned char i_advise; /* use to give file attribute hints */
737 unsigned char i_dir_level; /* use for dentry level for large dir */
738 unsigned int i_current_depth; /* only for directory depth */
739 /* for gc failure statistic */
740 unsigned int i_gc_failures[MAX_GC_FAILURE];
741 unsigned int i_pino; /* parent inode number */
742 umode_t i_acl_mode; /* keep file acl mode temporarily */
744 /* Use below internally in f2fs*/
745 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
746 struct rw_semaphore i_sem; /* protect fi info */
747 atomic_t dirty_pages; /* # of dirty pages */
748 f2fs_hash_t chash; /* hash value of given file name */
749 unsigned int clevel; /* maximum level of given file name */
750 struct task_struct *task; /* lookup and create consistency */
751 struct task_struct *cp_task; /* separate cp/wb IO stats*/
752 struct task_struct *wb_task; /* indicate inode is in context of writeback */
753 nid_t i_xattr_nid; /* node id that contains xattrs */
754 loff_t last_disk_size; /* lastly written file size */
755 spinlock_t i_size_lock; /* protect last_disk_size */
758 struct dquot *i_dquot[MAXQUOTAS];
760 /* quota space reservation, managed internally by quota code */
761 qsize_t i_reserved_quota;
763 struct list_head dirty_list; /* dirty list for dirs and files */
764 struct list_head gdirty_list; /* linked in global dirty list */
765 struct list_head inmem_ilist; /* list for inmem inodes */
766 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
767 struct task_struct *inmem_task; /* store inmemory task */
768 struct mutex inmem_lock; /* lock for inmemory pages */
769 struct extent_tree *extent_tree; /* cached extent_tree entry */
771 /* avoid racing between foreground op and gc */
772 struct rw_semaphore i_gc_rwsem[2];
773 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
775 int i_extra_isize; /* size of extra space located in i_addr */
776 kprojid_t i_projid; /* id for project quota */
777 int i_inline_xattr_size; /* inline xattr size */
778 struct timespec64 i_crtime; /* inode creation time */
779 struct timespec64 i_disk_time[4];/* inode disk times */
781 /* for file compress */
782 atomic_t i_compr_blocks; /* # of compressed blocks */
783 unsigned char i_compress_algorithm; /* algorithm type */
784 unsigned char i_log_cluster_size; /* log of cluster size */
785 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
786 unsigned short i_compress_flag; /* compress flag */
787 unsigned int i_cluster_size; /* cluster size */
790 static inline void get_extent_info(struct extent_info *ext,
791 struct f2fs_extent *i_ext)
793 ext->fofs = le32_to_cpu(i_ext->fofs);
794 ext->blk = le32_to_cpu(i_ext->blk);
795 ext->len = le32_to_cpu(i_ext->len);
798 static inline void set_raw_extent(struct extent_info *ext,
799 struct f2fs_extent *i_ext)
801 i_ext->fofs = cpu_to_le32(ext->fofs);
802 i_ext->blk = cpu_to_le32(ext->blk);
803 i_ext->len = cpu_to_le32(ext->len);
806 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
807 u32 blk, unsigned int len)
812 #ifdef CONFIG_F2FS_FS_COMPRESSION
817 static inline bool __is_discard_mergeable(struct discard_info *back,
818 struct discard_info *front, unsigned int max_len)
820 return (back->lstart + back->len == front->lstart) &&
821 (back->len + front->len <= max_len);
824 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
825 struct discard_info *back, unsigned int max_len)
827 return __is_discard_mergeable(back, cur, max_len);
830 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
831 struct discard_info *front, unsigned int max_len)
833 return __is_discard_mergeable(cur, front, max_len);
836 static inline bool __is_extent_mergeable(struct extent_info *back,
837 struct extent_info *front)
839 #ifdef CONFIG_F2FS_FS_COMPRESSION
840 if (back->c_len && back->len != back->c_len)
842 if (front->c_len && front->len != front->c_len)
845 return (back->fofs + back->len == front->fofs &&
846 back->blk + back->len == front->blk);
849 static inline bool __is_back_mergeable(struct extent_info *cur,
850 struct extent_info *back)
852 return __is_extent_mergeable(back, cur);
855 static inline bool __is_front_mergeable(struct extent_info *cur,
856 struct extent_info *front)
858 return __is_extent_mergeable(cur, front);
861 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
862 static inline void __try_update_largest_extent(struct extent_tree *et,
863 struct extent_node *en)
865 if (en->ei.len > et->largest.len) {
866 et->largest = en->ei;
867 et->largest_updated = true;
872 * For free nid management
875 FREE_NID, /* newly added to free nid list */
876 PREALLOC_NID, /* it is preallocated */
887 struct f2fs_nm_info {
888 block_t nat_blkaddr; /* base disk address of NAT */
889 nid_t max_nid; /* maximum possible node ids */
890 nid_t available_nids; /* # of available node ids */
891 nid_t next_scan_nid; /* the next nid to be scanned */
892 unsigned int ram_thresh; /* control the memory footprint */
893 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
894 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
896 /* NAT cache management */
897 struct radix_tree_root nat_root;/* root of the nat entry cache */
898 struct radix_tree_root nat_set_root;/* root of the nat set cache */
899 struct rw_semaphore nat_tree_lock; /* protect nat entry tree */
900 struct list_head nat_entries; /* cached nat entry list (clean) */
901 spinlock_t nat_list_lock; /* protect clean nat entry list */
902 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
903 unsigned int nat_blocks; /* # of nat blocks */
905 /* free node ids management */
906 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
907 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
908 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
909 spinlock_t nid_list_lock; /* protect nid lists ops */
910 struct mutex build_lock; /* lock for build free nids */
911 unsigned char **free_nid_bitmap;
912 unsigned char *nat_block_bitmap;
913 unsigned short *free_nid_count; /* free nid count of NAT block */
916 char *nat_bitmap; /* NAT bitmap pointer */
918 unsigned int nat_bits_blocks; /* # of nat bits blocks */
919 unsigned char *nat_bits; /* NAT bits blocks */
920 unsigned char *full_nat_bits; /* full NAT pages */
921 unsigned char *empty_nat_bits; /* empty NAT pages */
922 #ifdef CONFIG_F2FS_CHECK_FS
923 char *nat_bitmap_mir; /* NAT bitmap mirror */
925 int bitmap_size; /* bitmap size */
929 * this structure is used as one of function parameters.
930 * all the information are dedicated to a given direct node block determined
931 * by the data offset in a file.
933 struct dnode_of_data {
934 struct inode *inode; /* vfs inode pointer */
935 struct page *inode_page; /* its inode page, NULL is possible */
936 struct page *node_page; /* cached direct node page */
937 nid_t nid; /* node id of the direct node block */
938 unsigned int ofs_in_node; /* data offset in the node page */
939 bool inode_page_locked; /* inode page is locked or not */
940 bool node_changed; /* is node block changed */
941 char cur_level; /* level of hole node page */
942 char max_level; /* level of current page located */
943 block_t data_blkaddr; /* block address of the node block */
946 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
947 struct page *ipage, struct page *npage, nid_t nid)
949 memset(dn, 0, sizeof(*dn));
951 dn->inode_page = ipage;
952 dn->node_page = npage;
959 * By default, there are 6 active log areas across the whole main area.
960 * When considering hot and cold data separation to reduce cleaning overhead,
961 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
963 * In the current design, you should not change the numbers intentionally.
964 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
965 * logs individually according to the underlying devices. (default: 6)
966 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
967 * data and 8 for node logs.
969 #define NR_CURSEG_DATA_TYPE (3)
970 #define NR_CURSEG_NODE_TYPE (3)
971 #define NR_CURSEG_INMEM_TYPE (2)
972 #define NR_CURSEG_RO_TYPE (2)
973 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
974 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
977 CURSEG_HOT_DATA = 0, /* directory entry blocks */
978 CURSEG_WARM_DATA, /* data blocks */
979 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
980 CURSEG_HOT_NODE, /* direct node blocks of directory files */
981 CURSEG_WARM_NODE, /* direct node blocks of normal files */
982 CURSEG_COLD_NODE, /* indirect node blocks */
983 NR_PERSISTENT_LOG, /* number of persistent log */
984 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
985 /* pinned file that needs consecutive block address */
986 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
987 NO_CHECK_TYPE, /* number of persistent & inmem log */
991 struct completion wait;
992 struct llist_node llnode;
997 struct flush_cmd_control {
998 struct task_struct *f2fs_issue_flush; /* flush thread */
999 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1000 atomic_t issued_flush; /* # of issued flushes */
1001 atomic_t queued_flush; /* # of queued flushes */
1002 struct llist_head issue_list; /* list for command issue */
1003 struct llist_node *dispatch_list; /* list for command dispatch */
1006 struct f2fs_sm_info {
1007 struct sit_info *sit_info; /* whole segment information */
1008 struct free_segmap_info *free_info; /* free segment information */
1009 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1010 struct curseg_info *curseg_array; /* active segment information */
1012 struct rw_semaphore curseg_lock; /* for preventing curseg change */
1014 block_t seg0_blkaddr; /* block address of 0'th segment */
1015 block_t main_blkaddr; /* start block address of main area */
1016 block_t ssa_blkaddr; /* start block address of SSA area */
1018 unsigned int segment_count; /* total # of segments */
1019 unsigned int main_segments; /* # of segments in main area */
1020 unsigned int reserved_segments; /* # of reserved segments */
1021 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1022 unsigned int ovp_segments; /* # of overprovision segments */
1024 /* a threshold to reclaim prefree segments */
1025 unsigned int rec_prefree_segments;
1027 /* for batched trimming */
1028 unsigned int trim_sections; /* # of sections to trim */
1030 struct list_head sit_entry_set; /* sit entry set list */
1032 unsigned int ipu_policy; /* in-place-update policy */
1033 unsigned int min_ipu_util; /* in-place-update threshold */
1034 unsigned int min_fsync_blocks; /* threshold for fsync */
1035 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1036 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1037 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1039 /* for flush command control */
1040 struct flush_cmd_control *fcc_info;
1042 /* for discard command control */
1043 struct discard_cmd_control *dcc_info;
1050 * COUNT_TYPE for monitoring
1052 * f2fs monitors the number of several block types such as on-writeback,
1053 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1055 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1075 * The below are the page types of bios used in submit_bio().
1076 * The available types are:
1077 * DATA User data pages. It operates as async mode.
1078 * NODE Node pages. It operates as async mode.
1079 * META FS metadata pages such as SIT, NAT, CP.
1080 * NR_PAGE_TYPE The number of page types.
1081 * META_FLUSH Make sure the previous pages are written
1082 * with waiting the bio's completion
1083 * ... Only can be used with META.
1085 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1088 NODE = 1, /* should not change this */
1092 INMEM, /* the below types are used by tracepoints only. */
1101 HOT = 0, /* must be zero for meta bio */
1107 enum need_lock_type {
1113 enum cp_reason_type {
1129 APP_DIRECT_IO, /* app direct write IOs */
1130 APP_BUFFERED_IO, /* app buffered write IOs */
1131 APP_WRITE_IO, /* app write IOs */
1132 APP_MAPPED_IO, /* app mapped IOs */
1133 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1134 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1135 FS_META_IO, /* meta IOs from kworker/reclaimer */
1136 FS_GC_DATA_IO, /* data IOs from forground gc */
1137 FS_GC_NODE_IO, /* node IOs from forground gc */
1138 FS_CP_DATA_IO, /* data IOs from checkpoint */
1139 FS_CP_NODE_IO, /* node IOs from checkpoint */
1140 FS_CP_META_IO, /* meta IOs from checkpoint */
1143 APP_DIRECT_READ_IO, /* app direct read IOs */
1144 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1145 APP_READ_IO, /* app read IOs */
1146 APP_MAPPED_READ_IO, /* app mapped read IOs */
1147 FS_DATA_READ_IO, /* data read IOs */
1148 FS_GDATA_READ_IO, /* data read IOs from background gc */
1149 FS_CDATA_READ_IO, /* compressed data read IOs */
1150 FS_NODE_READ_IO, /* node read IOs */
1151 FS_META_READ_IO, /* meta read IOs */
1154 FS_DISCARD, /* discard */
1158 struct f2fs_io_info {
1159 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1160 nid_t ino; /* inode number */
1161 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1162 enum temp_type temp; /* contains HOT/WARM/COLD */
1163 int op; /* contains REQ_OP_ */
1164 int op_flags; /* req_flag_bits */
1165 block_t new_blkaddr; /* new block address to be written */
1166 block_t old_blkaddr; /* old block address before Cow */
1167 struct page *page; /* page to be written */
1168 struct page *encrypted_page; /* encrypted page */
1169 struct page *compressed_page; /* compressed page */
1170 struct list_head list; /* serialize IOs */
1171 bool submitted; /* indicate IO submission */
1172 int need_lock; /* indicate we need to lock cp_rwsem */
1173 bool in_list; /* indicate fio is in io_list */
1174 bool is_por; /* indicate IO is from recovery or not */
1175 bool retry; /* need to reallocate block address */
1176 int compr_blocks; /* # of compressed block addresses */
1177 bool encrypted; /* indicate file is encrypted */
1178 enum iostat_type io_type; /* io type */
1179 struct writeback_control *io_wbc; /* writeback control */
1180 struct bio **bio; /* bio for ipu */
1181 sector_t *last_block; /* last block number in bio */
1182 unsigned char version; /* version of the node */
1187 struct list_head list;
1190 #define is_read_io(rw) ((rw) == READ)
1191 struct f2fs_bio_info {
1192 struct f2fs_sb_info *sbi; /* f2fs superblock */
1193 struct bio *bio; /* bios to merge */
1194 sector_t last_block_in_bio; /* last block number */
1195 struct f2fs_io_info fio; /* store buffered io info. */
1196 struct rw_semaphore io_rwsem; /* blocking op for bio */
1197 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1198 struct list_head io_list; /* track fios */
1199 struct list_head bio_list; /* bio entry list head */
1200 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
1203 #define FDEV(i) (sbi->devs[i])
1204 #define RDEV(i) (raw_super->devs[i])
1205 struct f2fs_dev_info {
1206 struct block_device *bdev;
1207 char path[MAX_PATH_LEN];
1208 unsigned int total_segments;
1211 #ifdef CONFIG_BLK_DEV_ZONED
1212 unsigned int nr_blkz; /* Total number of zones */
1213 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1218 DIR_INODE, /* for dirty dir inode */
1219 FILE_INODE, /* for dirty regular/symlink inode */
1220 DIRTY_META, /* for all dirtied inode metadata */
1221 ATOMIC_FILE, /* for all atomic files */
1225 /* for inner inode cache management */
1226 struct inode_management {
1227 struct radix_tree_root ino_root; /* ino entry array */
1228 spinlock_t ino_lock; /* for ino entry lock */
1229 struct list_head ino_list; /* inode list head */
1230 unsigned long ino_num; /* number of entries */
1234 struct atgc_management {
1235 bool atgc_enabled; /* ATGC is enabled or not */
1236 struct rb_root_cached root; /* root of victim rb-tree */
1237 struct list_head victim_list; /* linked with all victim entries */
1238 unsigned int victim_count; /* victim count in rb-tree */
1239 unsigned int candidate_ratio; /* candidate ratio */
1240 unsigned int max_candidate_count; /* max candidate count */
1241 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1242 unsigned long long age_threshold; /* age threshold */
1245 /* For s_flag in struct f2fs_sb_info */
1247 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1248 SBI_IS_CLOSE, /* specify unmounting */
1249 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1250 SBI_POR_DOING, /* recovery is doing or not */
1251 SBI_NEED_SB_WRITE, /* need to recover superblock */
1252 SBI_NEED_CP, /* need to checkpoint */
1253 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1254 SBI_IS_RECOVERED, /* recovered orphan/data */
1255 SBI_CP_DISABLED, /* CP was disabled last mount */
1256 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1257 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1258 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1259 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1260 SBI_IS_RESIZEFS, /* resizefs is in process */
1261 SBI_IS_FREEZING, /* freezefs is in process */
1270 UMOUNT_DISCARD_TIMEOUT,
1285 BGGC_MODE_ON, /* background gc is on */
1286 BGGC_MODE_OFF, /* background gc is off */
1288 * background gc is on, migrating blocks
1289 * like foreground gc
1294 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1295 FS_MODE_LFS, /* use lfs allocation only */
1299 WHINT_MODE_OFF, /* not pass down write hints */
1300 WHINT_MODE_USER, /* try to pass down hints given by users */
1301 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1305 ALLOC_MODE_DEFAULT, /* stay default */
1306 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1310 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1311 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1312 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1317 * automatically compress compression
1321 * automatical compression is disabled.
1322 * user can control the file compression
1328 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1329 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1330 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1333 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1334 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1335 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1338 * Layout of f2fs page.private:
1340 * Layout A: lowest bit should be 1
1341 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1342 * bit 0 PAGE_PRIVATE_NOT_POINTER
1343 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1344 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1345 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1346 * bit 4 PAGE_PRIVATE_INLINE_INODE
1347 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1348 * bit 6- f2fs private data
1350 * Layout B: lowest bit should be 0
1351 * page.private is a wrapped pointer.
1354 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1355 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1356 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1357 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1358 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1359 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1363 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1364 static inline bool page_private_##name(struct page *page) \
1366 return PagePrivate(page) && \
1367 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1368 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1371 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1372 static inline void set_page_private_##name(struct page *page) \
1374 if (!PagePrivate(page)) { \
1376 SetPagePrivate(page); \
1377 set_page_private(page, 0); \
1379 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1380 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1383 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1384 static inline void clear_page_private_##name(struct page *page) \
1386 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1387 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1388 set_page_private(page, 0); \
1389 if (PagePrivate(page)) { \
1390 ClearPagePrivate(page); \
1396 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1397 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1398 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1399 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1400 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1401 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1403 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1404 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1405 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1406 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1407 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1409 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1410 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1411 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1412 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1413 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1415 static inline unsigned long get_page_private_data(struct page *page)
1417 unsigned long data = page_private(page);
1419 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1421 return data >> PAGE_PRIVATE_MAX;
1424 static inline void set_page_private_data(struct page *page, unsigned long data)
1426 if (!PagePrivate(page)) {
1428 SetPagePrivate(page);
1429 set_page_private(page, 0);
1431 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1432 page_private(page) |= data << PAGE_PRIVATE_MAX;
1435 static inline void clear_page_private_data(struct page *page)
1437 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1438 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1439 set_page_private(page, 0);
1440 if (PagePrivate(page)) {
1441 ClearPagePrivate(page);
1447 /* For compression */
1448 enum compress_algorithm_type {
1456 enum compress_flag {
1461 #define COMPRESS_WATERMARK 20
1462 #define COMPRESS_PERCENT 20
1464 #define COMPRESS_DATA_RESERVED_SIZE 4
1465 struct compress_data {
1466 __le32 clen; /* compressed data size */
1467 __le32 chksum; /* compressed data chksum */
1468 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1469 u8 cdata[]; /* compressed data */
1472 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1474 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1476 #define COMPRESS_LEVEL_OFFSET 8
1478 /* compress context */
1479 struct compress_ctx {
1480 struct inode *inode; /* inode the context belong to */
1481 pgoff_t cluster_idx; /* cluster index number */
1482 unsigned int cluster_size; /* page count in cluster */
1483 unsigned int log_cluster_size; /* log of cluster size */
1484 struct page **rpages; /* pages store raw data in cluster */
1485 unsigned int nr_rpages; /* total page number in rpages */
1486 struct page **cpages; /* pages store compressed data in cluster */
1487 unsigned int nr_cpages; /* total page number in cpages */
1488 void *rbuf; /* virtual mapped address on rpages */
1489 struct compress_data *cbuf; /* virtual mapped address on cpages */
1490 size_t rlen; /* valid data length in rbuf */
1491 size_t clen; /* valid data length in cbuf */
1492 void *private; /* payload buffer for specified compression algorithm */
1493 void *private2; /* extra payload buffer */
1496 /* compress context for write IO path */
1497 struct compress_io_ctx {
1498 u32 magic; /* magic number to indicate page is compressed */
1499 struct inode *inode; /* inode the context belong to */
1500 struct page **rpages; /* pages store raw data in cluster */
1501 unsigned int nr_rpages; /* total page number in rpages */
1502 atomic_t pending_pages; /* in-flight compressed page count */
1505 /* Context for decompressing one cluster on the read IO path */
1506 struct decompress_io_ctx {
1507 u32 magic; /* magic number to indicate page is compressed */
1508 struct inode *inode; /* inode the context belong to */
1509 pgoff_t cluster_idx; /* cluster index number */
1510 unsigned int cluster_size; /* page count in cluster */
1511 unsigned int log_cluster_size; /* log of cluster size */
1512 struct page **rpages; /* pages store raw data in cluster */
1513 unsigned int nr_rpages; /* total page number in rpages */
1514 struct page **cpages; /* pages store compressed data in cluster */
1515 unsigned int nr_cpages; /* total page number in cpages */
1516 struct page **tpages; /* temp pages to pad holes in cluster */
1517 void *rbuf; /* virtual mapped address on rpages */
1518 struct compress_data *cbuf; /* virtual mapped address on cpages */
1519 size_t rlen; /* valid data length in rbuf */
1520 size_t clen; /* valid data length in cbuf */
1523 * The number of compressed pages remaining to be read in this cluster.
1524 * This is initially nr_cpages. It is decremented by 1 each time a page
1525 * has been read (or failed to be read). When it reaches 0, the cluster
1526 * is decompressed (or an error is reported).
1528 * If an error occurs before all the pages have been submitted for I/O,
1529 * then this will never reach 0. In this case the I/O submitter is
1530 * responsible for calling f2fs_decompress_end_io() instead.
1532 atomic_t remaining_pages;
1535 * Number of references to this decompress_io_ctx.
1537 * One reference is held for I/O completion. This reference is dropped
1538 * after the pagecache pages are updated and unlocked -- either after
1539 * decompression (and verity if enabled), or after an error.
1541 * In addition, each compressed page holds a reference while it is in a
1542 * bio. These references are necessary prevent compressed pages from
1543 * being freed while they are still in a bio.
1547 bool failed; /* IO error occurred before decompression? */
1548 bool need_verity; /* need fs-verity verification after decompression? */
1549 void *private; /* payload buffer for specified decompression algorithm */
1550 void *private2; /* extra payload buffer */
1551 struct work_struct verity_work; /* work to verify the decompressed pages */
1554 #define NULL_CLUSTER ((unsigned int)(~0))
1555 #define MIN_COMPRESS_LOG_SIZE 2
1556 #define MAX_COMPRESS_LOG_SIZE 8
1557 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1559 struct f2fs_sb_info {
1560 struct super_block *sb; /* pointer to VFS super block */
1561 struct proc_dir_entry *s_proc; /* proc entry */
1562 struct f2fs_super_block *raw_super; /* raw super block pointer */
1563 struct rw_semaphore sb_lock; /* lock for raw super block */
1564 int valid_super_block; /* valid super block no */
1565 unsigned long s_flag; /* flags for sbi */
1566 struct mutex writepages; /* mutex for writepages() */
1568 #ifdef CONFIG_BLK_DEV_ZONED
1569 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1570 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1573 /* for node-related operations */
1574 struct f2fs_nm_info *nm_info; /* node manager */
1575 struct inode *node_inode; /* cache node blocks */
1577 /* for segment-related operations */
1578 struct f2fs_sm_info *sm_info; /* segment manager */
1580 /* for bio operations */
1581 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1582 /* keep migration IO order for LFS mode */
1583 struct rw_semaphore io_order_lock;
1584 mempool_t *write_io_dummy; /* Dummy pages */
1586 /* for checkpoint */
1587 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1588 int cur_cp_pack; /* remain current cp pack */
1589 spinlock_t cp_lock; /* for flag in ckpt */
1590 struct inode *meta_inode; /* cache meta blocks */
1591 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */
1592 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1593 struct rw_semaphore node_write; /* locking node writes */
1594 struct rw_semaphore node_change; /* locking node change */
1595 wait_queue_head_t cp_wait;
1596 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1597 long interval_time[MAX_TIME]; /* to store thresholds */
1598 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1600 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1602 spinlock_t fsync_node_lock; /* for node entry lock */
1603 struct list_head fsync_node_list; /* node list head */
1604 unsigned int fsync_seg_id; /* sequence id */
1605 unsigned int fsync_node_num; /* number of node entries */
1607 /* for orphan inode, use 0'th array */
1608 unsigned int max_orphans; /* max orphan inodes */
1610 /* for inode management */
1611 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1612 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1613 struct mutex flush_lock; /* for flush exclusion */
1615 /* for extent tree cache */
1616 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1617 struct mutex extent_tree_lock; /* locking extent radix tree */
1618 struct list_head extent_list; /* lru list for shrinker */
1619 spinlock_t extent_lock; /* locking extent lru list */
1620 atomic_t total_ext_tree; /* extent tree count */
1621 struct list_head zombie_list; /* extent zombie tree list */
1622 atomic_t total_zombie_tree; /* extent zombie tree count */
1623 atomic_t total_ext_node; /* extent info count */
1625 /* basic filesystem units */
1626 unsigned int log_sectors_per_block; /* log2 sectors per block */
1627 unsigned int log_blocksize; /* log2 block size */
1628 unsigned int blocksize; /* block size */
1629 unsigned int root_ino_num; /* root inode number*/
1630 unsigned int node_ino_num; /* node inode number*/
1631 unsigned int meta_ino_num; /* meta inode number*/
1632 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1633 unsigned int blocks_per_seg; /* blocks per segment */
1634 unsigned int unusable_blocks_per_sec; /* unusable blocks per section */
1635 unsigned int segs_per_sec; /* segments per section */
1636 unsigned int secs_per_zone; /* sections per zone */
1637 unsigned int total_sections; /* total section count */
1638 unsigned int total_node_count; /* total node block count */
1639 unsigned int total_valid_node_count; /* valid node block count */
1640 int dir_level; /* directory level */
1641 int readdir_ra; /* readahead inode in readdir */
1642 u64 max_io_bytes; /* max io bytes to merge IOs */
1644 block_t user_block_count; /* # of user blocks */
1645 block_t total_valid_block_count; /* # of valid blocks */
1646 block_t discard_blks; /* discard command candidats */
1647 block_t last_valid_block_count; /* for recovery */
1648 block_t reserved_blocks; /* configurable reserved blocks */
1649 block_t current_reserved_blocks; /* current reserved blocks */
1651 /* Additional tracking for no checkpoint mode */
1652 block_t unusable_block_count; /* # of blocks saved by last cp */
1654 unsigned int nquota_files; /* # of quota sysfile */
1655 struct rw_semaphore quota_sem; /* blocking cp for flags */
1657 /* # of pages, see count_type */
1658 atomic_t nr_pages[NR_COUNT_TYPE];
1659 /* # of allocated blocks */
1660 struct percpu_counter alloc_valid_block_count;
1662 /* writeback control */
1663 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1665 /* valid inode count */
1666 struct percpu_counter total_valid_inode_count;
1668 struct f2fs_mount_info mount_opt; /* mount options */
1670 /* for cleaning operations */
1671 struct rw_semaphore gc_lock; /*
1672 * semaphore for GC, avoid
1673 * race between GC and GC or CP
1675 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1676 struct atgc_management am; /* atgc management */
1677 unsigned int cur_victim_sec; /* current victim section num */
1678 unsigned int gc_mode; /* current GC state */
1679 unsigned int next_victim_seg[2]; /* next segment in victim section */
1681 /* for skip statistic */
1682 unsigned int atomic_files; /* # of opened atomic file */
1683 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1684 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1686 /* threshold for gc trials on pinned files */
1687 u64 gc_pin_file_threshold;
1688 struct rw_semaphore pin_sem;
1690 /* maximum # of trials to find a victim segment for SSR and GC */
1691 unsigned int max_victim_search;
1692 /* migration granularity of garbage collection, unit: segment */
1693 unsigned int migration_granularity;
1696 * for stat information.
1697 * one is for the LFS mode, and the other is for the SSR mode.
1699 #ifdef CONFIG_F2FS_STAT_FS
1700 struct f2fs_stat_info *stat_info; /* FS status information */
1701 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1702 unsigned int segment_count[2]; /* # of allocated segments */
1703 unsigned int block_count[2]; /* # of allocated blocks */
1704 atomic_t inplace_count; /* # of inplace update */
1705 atomic64_t total_hit_ext; /* # of lookup extent cache */
1706 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1707 atomic64_t read_hit_largest; /* # of hit largest extent node */
1708 atomic64_t read_hit_cached; /* # of hit cached extent node */
1709 atomic_t inline_xattr; /* # of inline_xattr inodes */
1710 atomic_t inline_inode; /* # of inline_data inodes */
1711 atomic_t inline_dir; /* # of inline_dentry inodes */
1712 atomic_t compr_inode; /* # of compressed inodes */
1713 atomic64_t compr_blocks; /* # of compressed blocks */
1714 atomic_t vw_cnt; /* # of volatile writes */
1715 atomic_t max_aw_cnt; /* max # of atomic writes */
1716 atomic_t max_vw_cnt; /* max # of volatile writes */
1717 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1718 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1719 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1721 spinlock_t stat_lock; /* lock for stat operations */
1723 /* to attach REQ_META|REQ_FUA flags */
1724 unsigned int data_io_flag;
1725 unsigned int node_io_flag;
1727 /* For sysfs suppport */
1728 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1729 struct completion s_kobj_unregister;
1731 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1732 struct completion s_stat_kobj_unregister;
1734 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1735 struct completion s_feature_list_kobj_unregister;
1737 /* For shrinker support */
1738 struct list_head s_list;
1739 int s_ndevs; /* number of devices */
1740 struct f2fs_dev_info *devs; /* for device list */
1741 unsigned int dirty_device; /* for checkpoint data flush */
1742 spinlock_t dev_lock; /* protect dirty_device */
1743 struct mutex umount_mutex;
1744 unsigned int shrinker_run_no;
1746 /* For write statistics */
1747 u64 sectors_written_start;
1750 /* Reference to checksum algorithm driver via cryptoapi */
1751 struct crypto_shash *s_chksum_driver;
1753 /* Precomputed FS UUID checksum for seeding other checksums */
1754 __u32 s_chksum_seed;
1756 struct workqueue_struct *post_read_wq; /* post read workqueue */
1758 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1759 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1761 /* For reclaimed segs statistics per each GC mode */
1762 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1763 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1765 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1767 #ifdef CONFIG_F2FS_FS_COMPRESSION
1768 struct kmem_cache *page_array_slab; /* page array entry */
1769 unsigned int page_array_slab_size; /* default page array slab size */
1771 /* For runtime compression statistics */
1772 u64 compr_written_block;
1773 u64 compr_saved_block;
1774 u32 compr_new_inode;
1776 /* For compressed block cache */
1777 struct inode *compress_inode; /* cache compressed blocks */
1778 unsigned int compress_percent; /* cache page percentage */
1779 unsigned int compress_watermark; /* cache page watermark */
1780 atomic_t compress_page_hit; /* cache hit count */
1783 #ifdef CONFIG_F2FS_IOSTAT
1784 /* For app/fs IO statistics */
1785 spinlock_t iostat_lock;
1786 unsigned long long rw_iostat[NR_IO_TYPE];
1787 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1789 unsigned long iostat_next_period;
1790 unsigned int iostat_period_ms;
1792 /* For io latency related statistics info in one iostat period */
1793 spinlock_t iostat_lat_lock;
1794 struct iostat_lat_info *iostat_io_lat;
1798 struct f2fs_private_dio {
1799 struct inode *inode;
1801 bio_end_io_t *orig_end_io;
1805 #ifdef CONFIG_F2FS_FAULT_INJECTION
1806 #define f2fs_show_injection_info(sbi, type) \
1807 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1808 KERN_INFO, sbi->sb->s_id, \
1809 f2fs_fault_name[type], \
1810 __func__, __builtin_return_address(0))
1811 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1813 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1815 if (!ffi->inject_rate)
1818 if (!IS_FAULT_SET(ffi, type))
1821 atomic_inc(&ffi->inject_ops);
1822 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1823 atomic_set(&ffi->inject_ops, 0);
1829 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1830 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1837 * Test if the mounted volume is a multi-device volume.
1838 * - For a single regular disk volume, sbi->s_ndevs is 0.
1839 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1840 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1842 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1844 return sbi->s_ndevs > 1;
1847 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1849 unsigned long now = jiffies;
1851 sbi->last_time[type] = now;
1853 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1854 if (type == REQ_TIME) {
1855 sbi->last_time[DISCARD_TIME] = now;
1856 sbi->last_time[GC_TIME] = now;
1860 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1862 unsigned long interval = sbi->interval_time[type] * HZ;
1864 return time_after(jiffies, sbi->last_time[type] + interval);
1867 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1870 unsigned long interval = sbi->interval_time[type] * HZ;
1871 unsigned int wait_ms = 0;
1874 delta = (sbi->last_time[type] + interval) - jiffies;
1876 wait_ms = jiffies_to_msecs(delta);
1884 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1885 const void *address, unsigned int length)
1888 struct shash_desc shash;
1893 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1895 desc.shash.tfm = sbi->s_chksum_driver;
1896 *(u32 *)desc.ctx = crc;
1898 err = crypto_shash_update(&desc.shash, address, length);
1901 return *(u32 *)desc.ctx;
1904 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1905 unsigned int length)
1907 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1910 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1911 void *buf, size_t buf_size)
1913 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1916 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1917 const void *address, unsigned int length)
1919 return __f2fs_crc32(sbi, crc, address, length);
1922 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1924 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1927 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1929 return sb->s_fs_info;
1932 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1934 return F2FS_SB(inode->i_sb);
1937 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1939 return F2FS_I_SB(mapping->host);
1942 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1944 return F2FS_M_SB(page_file_mapping(page));
1947 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1949 return (struct f2fs_super_block *)(sbi->raw_super);
1952 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1954 return (struct f2fs_checkpoint *)(sbi->ckpt);
1957 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1959 return (struct f2fs_node *)page_address(page);
1962 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1964 return &((struct f2fs_node *)page_address(page))->i;
1967 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1969 return (struct f2fs_nm_info *)(sbi->nm_info);
1972 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1974 return (struct f2fs_sm_info *)(sbi->sm_info);
1977 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1979 return (struct sit_info *)(SM_I(sbi)->sit_info);
1982 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1984 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1987 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1989 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1992 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1994 return sbi->meta_inode->i_mapping;
1997 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1999 return sbi->node_inode->i_mapping;
2002 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2004 return test_bit(type, &sbi->s_flag);
2007 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2009 set_bit(type, &sbi->s_flag);
2012 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2014 clear_bit(type, &sbi->s_flag);
2017 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2019 return le64_to_cpu(cp->checkpoint_ver);
2022 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2024 if (type < F2FS_MAX_QUOTAS)
2025 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2029 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2031 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2032 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2035 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2037 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2039 return ckpt_flags & f;
2042 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2044 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2047 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2049 unsigned int ckpt_flags;
2051 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2053 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2056 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2058 unsigned long flags;
2060 spin_lock_irqsave(&sbi->cp_lock, flags);
2061 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2062 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2065 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2067 unsigned int ckpt_flags;
2069 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2071 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2074 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2076 unsigned long flags;
2078 spin_lock_irqsave(&sbi->cp_lock, flags);
2079 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2080 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2083 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2085 down_read(&sbi->cp_rwsem);
2088 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2090 return down_read_trylock(&sbi->cp_rwsem);
2093 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2095 up_read(&sbi->cp_rwsem);
2098 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2100 down_write(&sbi->cp_rwsem);
2103 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2105 up_write(&sbi->cp_rwsem);
2108 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2110 int reason = CP_SYNC;
2112 if (test_opt(sbi, FASTBOOT))
2113 reason = CP_FASTBOOT;
2114 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2119 static inline bool __remain_node_summaries(int reason)
2121 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2124 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2126 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2127 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2131 * Check whether the inode has blocks or not
2133 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2135 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2137 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2140 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2142 return ofs == XATTR_NODE_OFFSET;
2145 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2146 struct inode *inode, bool cap)
2150 if (!test_opt(sbi, RESERVE_ROOT))
2152 if (IS_NOQUOTA(inode))
2154 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2156 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2157 in_group_p(F2FS_OPTION(sbi).s_resgid))
2159 if (cap && capable(CAP_SYS_RESOURCE))
2164 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2165 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2166 struct inode *inode, blkcnt_t *count)
2168 blkcnt_t diff = 0, release = 0;
2169 block_t avail_user_block_count;
2172 ret = dquot_reserve_block(inode, *count);
2176 if (time_to_inject(sbi, FAULT_BLOCK)) {
2177 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2183 * let's increase this in prior to actual block count change in order
2184 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2186 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2188 spin_lock(&sbi->stat_lock);
2189 sbi->total_valid_block_count += (block_t)(*count);
2190 avail_user_block_count = sbi->user_block_count -
2191 sbi->current_reserved_blocks;
2193 if (!__allow_reserved_blocks(sbi, inode, true))
2194 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2196 if (F2FS_IO_ALIGNED(sbi))
2197 avail_user_block_count -= sbi->blocks_per_seg *
2198 SM_I(sbi)->additional_reserved_segments;
2200 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2201 if (avail_user_block_count > sbi->unusable_block_count)
2202 avail_user_block_count -= sbi->unusable_block_count;
2204 avail_user_block_count = 0;
2206 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2207 diff = sbi->total_valid_block_count - avail_user_block_count;
2212 sbi->total_valid_block_count -= diff;
2214 spin_unlock(&sbi->stat_lock);
2218 spin_unlock(&sbi->stat_lock);
2220 if (unlikely(release)) {
2221 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2222 dquot_release_reservation_block(inode, release);
2224 f2fs_i_blocks_write(inode, *count, true, true);
2228 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2230 dquot_release_reservation_block(inode, release);
2235 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2237 #define f2fs_err(sbi, fmt, ...) \
2238 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2239 #define f2fs_warn(sbi, fmt, ...) \
2240 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2241 #define f2fs_notice(sbi, fmt, ...) \
2242 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2243 #define f2fs_info(sbi, fmt, ...) \
2244 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2245 #define f2fs_debug(sbi, fmt, ...) \
2246 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2248 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2249 struct inode *inode,
2252 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2254 spin_lock(&sbi->stat_lock);
2255 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2256 sbi->total_valid_block_count -= (block_t)count;
2257 if (sbi->reserved_blocks &&
2258 sbi->current_reserved_blocks < sbi->reserved_blocks)
2259 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2260 sbi->current_reserved_blocks + count);
2261 spin_unlock(&sbi->stat_lock);
2262 if (unlikely(inode->i_blocks < sectors)) {
2263 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2265 (unsigned long long)inode->i_blocks,
2266 (unsigned long long)sectors);
2267 set_sbi_flag(sbi, SBI_NEED_FSCK);
2270 f2fs_i_blocks_write(inode, count, false, true);
2273 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2275 atomic_inc(&sbi->nr_pages[count_type]);
2277 if (count_type == F2FS_DIRTY_DENTS ||
2278 count_type == F2FS_DIRTY_NODES ||
2279 count_type == F2FS_DIRTY_META ||
2280 count_type == F2FS_DIRTY_QDATA ||
2281 count_type == F2FS_DIRTY_IMETA)
2282 set_sbi_flag(sbi, SBI_IS_DIRTY);
2285 static inline void inode_inc_dirty_pages(struct inode *inode)
2287 atomic_inc(&F2FS_I(inode)->dirty_pages);
2288 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2289 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2290 if (IS_NOQUOTA(inode))
2291 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2294 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2296 atomic_dec(&sbi->nr_pages[count_type]);
2299 static inline void inode_dec_dirty_pages(struct inode *inode)
2301 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2302 !S_ISLNK(inode->i_mode))
2305 atomic_dec(&F2FS_I(inode)->dirty_pages);
2306 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2307 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2308 if (IS_NOQUOTA(inode))
2309 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2312 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2314 return atomic_read(&sbi->nr_pages[count_type]);
2317 static inline int get_dirty_pages(struct inode *inode)
2319 return atomic_read(&F2FS_I(inode)->dirty_pages);
2322 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2324 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2325 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2326 sbi->log_blocks_per_seg;
2328 return segs / sbi->segs_per_sec;
2331 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2333 return sbi->total_valid_block_count;
2336 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2338 return sbi->discard_blks;
2341 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2343 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2345 /* return NAT or SIT bitmap */
2346 if (flag == NAT_BITMAP)
2347 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2348 else if (flag == SIT_BITMAP)
2349 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2354 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2356 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2359 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2361 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2362 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2365 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2366 offset = (flag == SIT_BITMAP) ?
2367 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2369 * if large_nat_bitmap feature is enabled, leave checksum
2370 * protection for all nat/sit bitmaps.
2372 return tmp_ptr + offset + sizeof(__le32);
2375 if (__cp_payload(sbi) > 0) {
2376 if (flag == NAT_BITMAP)
2377 return &ckpt->sit_nat_version_bitmap;
2379 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2381 offset = (flag == NAT_BITMAP) ?
2382 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2383 return tmp_ptr + offset;
2387 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2389 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2391 if (sbi->cur_cp_pack == 2)
2392 start_addr += sbi->blocks_per_seg;
2396 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2398 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2400 if (sbi->cur_cp_pack == 1)
2401 start_addr += sbi->blocks_per_seg;
2405 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2407 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2410 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2412 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2415 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2416 struct inode *inode, bool is_inode)
2418 block_t valid_block_count;
2419 unsigned int valid_node_count, user_block_count;
2424 err = dquot_alloc_inode(inode);
2429 err = dquot_reserve_block(inode, 1);
2434 if (time_to_inject(sbi, FAULT_BLOCK)) {
2435 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2439 spin_lock(&sbi->stat_lock);
2441 valid_block_count = sbi->total_valid_block_count +
2442 sbi->current_reserved_blocks + 1;
2444 if (!__allow_reserved_blocks(sbi, inode, false))
2445 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2447 if (F2FS_IO_ALIGNED(sbi))
2448 valid_block_count += sbi->blocks_per_seg *
2449 SM_I(sbi)->additional_reserved_segments;
2451 user_block_count = sbi->user_block_count;
2452 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2453 user_block_count -= sbi->unusable_block_count;
2455 if (unlikely(valid_block_count > user_block_count)) {
2456 spin_unlock(&sbi->stat_lock);
2460 valid_node_count = sbi->total_valid_node_count + 1;
2461 if (unlikely(valid_node_count > sbi->total_node_count)) {
2462 spin_unlock(&sbi->stat_lock);
2466 sbi->total_valid_node_count++;
2467 sbi->total_valid_block_count++;
2468 spin_unlock(&sbi->stat_lock);
2472 f2fs_mark_inode_dirty_sync(inode, true);
2474 f2fs_i_blocks_write(inode, 1, true, true);
2477 percpu_counter_inc(&sbi->alloc_valid_block_count);
2483 dquot_free_inode(inode);
2485 dquot_release_reservation_block(inode, 1);
2490 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2491 struct inode *inode, bool is_inode)
2493 spin_lock(&sbi->stat_lock);
2495 if (unlikely(!sbi->total_valid_block_count ||
2496 !sbi->total_valid_node_count)) {
2497 f2fs_warn(sbi, "dec_valid_node_count: inconsistent block counts, total_valid_block:%u, total_valid_node:%u",
2498 sbi->total_valid_block_count,
2499 sbi->total_valid_node_count);
2500 set_sbi_flag(sbi, SBI_NEED_FSCK);
2502 sbi->total_valid_block_count--;
2503 sbi->total_valid_node_count--;
2506 if (sbi->reserved_blocks &&
2507 sbi->current_reserved_blocks < sbi->reserved_blocks)
2508 sbi->current_reserved_blocks++;
2510 spin_unlock(&sbi->stat_lock);
2513 dquot_free_inode(inode);
2515 if (unlikely(inode->i_blocks == 0)) {
2516 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2518 (unsigned long long)inode->i_blocks);
2519 set_sbi_flag(sbi, SBI_NEED_FSCK);
2522 f2fs_i_blocks_write(inode, 1, false, true);
2526 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2528 return sbi->total_valid_node_count;
2531 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2533 percpu_counter_inc(&sbi->total_valid_inode_count);
2536 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2538 percpu_counter_dec(&sbi->total_valid_inode_count);
2541 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2543 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2546 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2547 pgoff_t index, bool for_write)
2551 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2553 page = find_get_page_flags(mapping, index,
2554 FGP_LOCK | FGP_ACCESSED);
2556 page = find_lock_page(mapping, index);
2560 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2561 f2fs_show_injection_info(F2FS_M_SB(mapping),
2568 return grab_cache_page(mapping, index);
2569 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2572 static inline struct page *f2fs_pagecache_get_page(
2573 struct address_space *mapping, pgoff_t index,
2574 int fgp_flags, gfp_t gfp_mask)
2576 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2577 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2581 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2584 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2586 char *src_kaddr = kmap(src);
2587 char *dst_kaddr = kmap(dst);
2589 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2594 static inline void f2fs_put_page(struct page *page, int unlock)
2600 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2606 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2609 f2fs_put_page(dn->node_page, 1);
2610 if (dn->inode_page && dn->node_page != dn->inode_page)
2611 f2fs_put_page(dn->inode_page, 0);
2612 dn->node_page = NULL;
2613 dn->inode_page = NULL;
2616 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2619 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2622 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2627 entry = kmem_cache_alloc(cachep, flags);
2629 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2633 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2634 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2637 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2639 if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
2640 f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
2644 return kmem_cache_alloc(cachep, flags);
2647 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2649 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2650 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2651 get_pages(sbi, F2FS_WB_CP_DATA) ||
2652 get_pages(sbi, F2FS_DIO_READ) ||
2653 get_pages(sbi, F2FS_DIO_WRITE))
2656 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2657 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2660 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2661 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2666 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2668 if (sbi->gc_mode == GC_URGENT_HIGH)
2671 if (is_inflight_io(sbi, type))
2674 if (sbi->gc_mode == GC_URGENT_LOW &&
2675 (type == DISCARD_TIME || type == GC_TIME))
2678 return f2fs_time_over(sbi, type);
2681 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2682 unsigned long index, void *item)
2684 while (radix_tree_insert(root, index, item))
2688 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2690 static inline bool IS_INODE(struct page *page)
2692 struct f2fs_node *p = F2FS_NODE(page);
2694 return RAW_IS_INODE(p);
2697 static inline int offset_in_addr(struct f2fs_inode *i)
2699 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2700 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2703 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2705 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2708 static inline int f2fs_has_extra_attr(struct inode *inode);
2709 static inline block_t data_blkaddr(struct inode *inode,
2710 struct page *node_page, unsigned int offset)
2712 struct f2fs_node *raw_node;
2715 bool is_inode = IS_INODE(node_page);
2717 raw_node = F2FS_NODE(node_page);
2721 /* from GC path only */
2722 base = offset_in_addr(&raw_node->i);
2723 else if (f2fs_has_extra_attr(inode))
2724 base = get_extra_isize(inode);
2727 addr_array = blkaddr_in_node(raw_node);
2728 return le32_to_cpu(addr_array[base + offset]);
2731 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2733 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2736 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2741 mask = 1 << (7 - (nr & 0x07));
2742 return mask & *addr;
2745 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2750 mask = 1 << (7 - (nr & 0x07));
2754 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2759 mask = 1 << (7 - (nr & 0x07));
2763 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2769 mask = 1 << (7 - (nr & 0x07));
2775 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2781 mask = 1 << (7 - (nr & 0x07));
2787 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2792 mask = 1 << (7 - (nr & 0x07));
2797 * On-disk inode flags (f2fs_inode::i_flags)
2799 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2800 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2801 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2802 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2803 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2804 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2805 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2806 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2807 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2808 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2809 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2811 /* Flags that should be inherited by new inodes from their parent. */
2812 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2813 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2814 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2816 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2817 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2820 /* Flags that are appropriate for non-directories/regular files. */
2821 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2823 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2827 else if (S_ISREG(mode))
2828 return flags & F2FS_REG_FLMASK;
2830 return flags & F2FS_OTHER_FLMASK;
2833 static inline void __mark_inode_dirty_flag(struct inode *inode,
2837 case FI_INLINE_XATTR:
2838 case FI_INLINE_DATA:
2839 case FI_INLINE_DENTRY:
2845 case FI_INLINE_DOTS:
2847 case FI_COMPRESS_RELEASED:
2848 f2fs_mark_inode_dirty_sync(inode, true);
2852 static inline void set_inode_flag(struct inode *inode, int flag)
2854 set_bit(flag, F2FS_I(inode)->flags);
2855 __mark_inode_dirty_flag(inode, flag, true);
2858 static inline int is_inode_flag_set(struct inode *inode, int flag)
2860 return test_bit(flag, F2FS_I(inode)->flags);
2863 static inline void clear_inode_flag(struct inode *inode, int flag)
2865 clear_bit(flag, F2FS_I(inode)->flags);
2866 __mark_inode_dirty_flag(inode, flag, false);
2869 static inline bool f2fs_verity_in_progress(struct inode *inode)
2871 return IS_ENABLED(CONFIG_FS_VERITY) &&
2872 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2875 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2877 F2FS_I(inode)->i_acl_mode = mode;
2878 set_inode_flag(inode, FI_ACL_MODE);
2879 f2fs_mark_inode_dirty_sync(inode, false);
2882 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2888 f2fs_mark_inode_dirty_sync(inode, true);
2891 static inline void f2fs_i_blocks_write(struct inode *inode,
2892 block_t diff, bool add, bool claim)
2894 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2895 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2897 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2900 dquot_claim_block(inode, diff);
2902 dquot_alloc_block_nofail(inode, diff);
2904 dquot_free_block(inode, diff);
2907 f2fs_mark_inode_dirty_sync(inode, true);
2908 if (clean || recover)
2909 set_inode_flag(inode, FI_AUTO_RECOVER);
2912 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2914 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2915 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2917 if (i_size_read(inode) == i_size)
2920 i_size_write(inode, i_size);
2921 f2fs_mark_inode_dirty_sync(inode, true);
2922 if (clean || recover)
2923 set_inode_flag(inode, FI_AUTO_RECOVER);
2926 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2928 F2FS_I(inode)->i_current_depth = depth;
2929 f2fs_mark_inode_dirty_sync(inode, true);
2932 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2935 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2936 f2fs_mark_inode_dirty_sync(inode, true);
2939 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2941 F2FS_I(inode)->i_xattr_nid = xnid;
2942 f2fs_mark_inode_dirty_sync(inode, true);
2945 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2947 F2FS_I(inode)->i_pino = pino;
2948 f2fs_mark_inode_dirty_sync(inode, true);
2951 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2953 struct f2fs_inode_info *fi = F2FS_I(inode);
2955 if (ri->i_inline & F2FS_INLINE_XATTR)
2956 set_bit(FI_INLINE_XATTR, fi->flags);
2957 if (ri->i_inline & F2FS_INLINE_DATA)
2958 set_bit(FI_INLINE_DATA, fi->flags);
2959 if (ri->i_inline & F2FS_INLINE_DENTRY)
2960 set_bit(FI_INLINE_DENTRY, fi->flags);
2961 if (ri->i_inline & F2FS_DATA_EXIST)
2962 set_bit(FI_DATA_EXIST, fi->flags);
2963 if (ri->i_inline & F2FS_INLINE_DOTS)
2964 set_bit(FI_INLINE_DOTS, fi->flags);
2965 if (ri->i_inline & F2FS_EXTRA_ATTR)
2966 set_bit(FI_EXTRA_ATTR, fi->flags);
2967 if (ri->i_inline & F2FS_PIN_FILE)
2968 set_bit(FI_PIN_FILE, fi->flags);
2969 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
2970 set_bit(FI_COMPRESS_RELEASED, fi->flags);
2973 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2977 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2978 ri->i_inline |= F2FS_INLINE_XATTR;
2979 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2980 ri->i_inline |= F2FS_INLINE_DATA;
2981 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2982 ri->i_inline |= F2FS_INLINE_DENTRY;
2983 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2984 ri->i_inline |= F2FS_DATA_EXIST;
2985 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2986 ri->i_inline |= F2FS_INLINE_DOTS;
2987 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2988 ri->i_inline |= F2FS_EXTRA_ATTR;
2989 if (is_inode_flag_set(inode, FI_PIN_FILE))
2990 ri->i_inline |= F2FS_PIN_FILE;
2991 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
2992 ri->i_inline |= F2FS_COMPRESS_RELEASED;
2995 static inline int f2fs_has_extra_attr(struct inode *inode)
2997 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3000 static inline int f2fs_has_inline_xattr(struct inode *inode)
3002 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3005 static inline int f2fs_compressed_file(struct inode *inode)
3007 return S_ISREG(inode->i_mode) &&
3008 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3011 static inline bool f2fs_need_compress_data(struct inode *inode)
3013 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3015 if (!f2fs_compressed_file(inode))
3018 if (compress_mode == COMPR_MODE_FS)
3020 else if (compress_mode == COMPR_MODE_USER &&
3021 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3027 static inline unsigned int addrs_per_inode(struct inode *inode)
3029 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3030 get_inline_xattr_addrs(inode);
3032 if (!f2fs_compressed_file(inode))
3034 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3037 static inline unsigned int addrs_per_block(struct inode *inode)
3039 if (!f2fs_compressed_file(inode))
3040 return DEF_ADDRS_PER_BLOCK;
3041 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3044 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3046 struct f2fs_inode *ri = F2FS_INODE(page);
3048 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3049 get_inline_xattr_addrs(inode)]);
3052 static inline int inline_xattr_size(struct inode *inode)
3054 if (f2fs_has_inline_xattr(inode))
3055 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3059 static inline int f2fs_has_inline_data(struct inode *inode)
3061 return is_inode_flag_set(inode, FI_INLINE_DATA);
3064 static inline int f2fs_exist_data(struct inode *inode)
3066 return is_inode_flag_set(inode, FI_DATA_EXIST);
3069 static inline int f2fs_has_inline_dots(struct inode *inode)
3071 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3074 static inline int f2fs_is_mmap_file(struct inode *inode)
3076 return is_inode_flag_set(inode, FI_MMAP_FILE);
3079 static inline bool f2fs_is_pinned_file(struct inode *inode)
3081 return is_inode_flag_set(inode, FI_PIN_FILE);
3084 static inline bool f2fs_is_atomic_file(struct inode *inode)
3086 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3089 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
3091 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
3094 static inline bool f2fs_is_volatile_file(struct inode *inode)
3096 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
3099 static inline bool f2fs_is_first_block_written(struct inode *inode)
3101 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3104 static inline bool f2fs_is_drop_cache(struct inode *inode)
3106 return is_inode_flag_set(inode, FI_DROP_CACHE);
3109 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3111 struct f2fs_inode *ri = F2FS_INODE(page);
3112 int extra_size = get_extra_isize(inode);
3114 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3117 static inline int f2fs_has_inline_dentry(struct inode *inode)
3119 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3122 static inline int is_file(struct inode *inode, int type)
3124 return F2FS_I(inode)->i_advise & type;
3127 static inline void set_file(struct inode *inode, int type)
3129 F2FS_I(inode)->i_advise |= type;
3130 f2fs_mark_inode_dirty_sync(inode, true);
3133 static inline void clear_file(struct inode *inode, int type)
3135 F2FS_I(inode)->i_advise &= ~type;
3136 f2fs_mark_inode_dirty_sync(inode, true);
3139 static inline bool f2fs_is_time_consistent(struct inode *inode)
3141 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3143 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3145 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3147 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3148 &F2FS_I(inode)->i_crtime))
3153 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3158 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3160 spin_lock(&sbi->inode_lock[DIRTY_META]);
3161 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3162 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3165 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3166 file_keep_isize(inode) ||
3167 i_size_read(inode) & ~PAGE_MASK)
3170 if (!f2fs_is_time_consistent(inode))
3173 spin_lock(&F2FS_I(inode)->i_size_lock);
3174 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3175 spin_unlock(&F2FS_I(inode)->i_size_lock);
3180 static inline bool f2fs_readonly(struct super_block *sb)
3182 return sb_rdonly(sb);
3185 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3187 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3190 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3192 if (len == 1 && name[0] == '.')
3195 if (len == 2 && name[0] == '.' && name[1] == '.')
3201 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3202 size_t size, gfp_t flags)
3204 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3205 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3209 return kmalloc(size, flags);
3212 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3213 size_t size, gfp_t flags)
3215 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3218 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3219 size_t size, gfp_t flags)
3221 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3222 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3226 return kvmalloc(size, flags);
3229 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3230 size_t size, gfp_t flags)
3232 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3235 static inline int get_extra_isize(struct inode *inode)
3237 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3240 static inline int get_inline_xattr_addrs(struct inode *inode)
3242 return F2FS_I(inode)->i_inline_xattr_size;
3245 #define f2fs_get_inode_mode(i) \
3246 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3247 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3249 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3250 (offsetof(struct f2fs_inode, i_extra_end) - \
3251 offsetof(struct f2fs_inode, i_extra_isize)) \
3253 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3254 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3255 ((offsetof(typeof(*(f2fs_inode)), field) + \
3256 sizeof((f2fs_inode)->field)) \
3257 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3259 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3261 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3263 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3264 block_t blkaddr, int type);
3265 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3266 block_t blkaddr, int type)
3268 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3269 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3271 f2fs_bug_on(sbi, 1);
3275 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3277 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3278 blkaddr == COMPRESS_ADDR)
3286 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3287 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3288 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3289 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3290 int f2fs_truncate(struct inode *inode);
3291 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3292 struct kstat *stat, u32 request_mask, unsigned int flags);
3293 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3294 struct iattr *attr);
3295 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3296 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3297 int f2fs_precache_extents(struct inode *inode);
3298 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3299 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3300 struct dentry *dentry, struct fileattr *fa);
3301 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3302 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3303 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3304 int f2fs_pin_file_control(struct inode *inode, bool inc);
3309 void f2fs_set_inode_flags(struct inode *inode);
3310 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3311 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3312 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3313 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3314 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3315 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3316 void f2fs_update_inode_page(struct inode *inode);
3317 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3318 void f2fs_evict_inode(struct inode *inode);
3319 void f2fs_handle_failed_inode(struct inode *inode);
3324 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3325 bool hot, bool set);
3326 struct dentry *f2fs_get_parent(struct dentry *child);
3331 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3332 int f2fs_init_casefolded_name(const struct inode *dir,
3333 struct f2fs_filename *fname);
3334 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3335 int lookup, struct f2fs_filename *fname);
3336 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3337 struct f2fs_filename *fname);
3338 void f2fs_free_filename(struct f2fs_filename *fname);
3339 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3340 const struct f2fs_filename *fname, int *max_slots);
3341 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3342 unsigned int start_pos, struct fscrypt_str *fstr);
3343 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3344 struct f2fs_dentry_ptr *d);
3345 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3346 const struct f2fs_filename *fname, struct page *dpage);
3347 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3348 unsigned int current_depth);
3349 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3350 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3351 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3352 const struct f2fs_filename *fname,
3353 struct page **res_page);
3354 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3355 const struct qstr *child, struct page **res_page);
3356 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3357 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3358 struct page **page);
3359 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3360 struct page *page, struct inode *inode);
3361 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3362 const struct f2fs_filename *fname);
3363 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3364 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3365 unsigned int bit_pos);
3366 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3367 struct inode *inode, nid_t ino, umode_t mode);
3368 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3369 struct inode *inode, nid_t ino, umode_t mode);
3370 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3371 struct inode *inode, nid_t ino, umode_t mode);
3372 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3373 struct inode *dir, struct inode *inode);
3374 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3375 bool f2fs_empty_dir(struct inode *dir);
3377 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3379 if (fscrypt_is_nokey_name(dentry))
3381 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3382 inode, inode->i_ino, inode->i_mode);
3388 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3389 void f2fs_inode_synced(struct inode *inode);
3390 int f2fs_dquot_initialize(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, bool checkpoint_context);
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 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3427 int f2fs_remove_inode_page(struct inode *inode);
3428 struct page *f2fs_new_inode_page(struct inode *inode);
3429 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3430 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3431 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3432 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3433 int f2fs_move_node_page(struct page *node_page, int gc_type);
3434 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3435 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3436 struct writeback_control *wbc, bool atomic,
3437 unsigned int *seq_id);
3438 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3439 struct writeback_control *wbc,
3440 bool do_balance, enum iostat_type io_type);
3441 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3442 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3443 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3444 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3445 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3446 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3447 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3448 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3449 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3450 unsigned int segno, struct f2fs_summary_block *sum);
3451 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3452 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3453 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3454 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3455 int __init f2fs_create_node_manager_caches(void);
3456 void f2fs_destroy_node_manager_caches(void);
3461 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3462 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3463 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3464 void f2fs_drop_inmem_pages(struct inode *inode);
3465 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3466 int f2fs_commit_inmem_pages(struct inode *inode);
3467 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3468 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3469 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3470 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3471 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3472 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3473 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3474 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3475 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3476 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3477 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3478 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3479 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3480 struct cp_control *cpc);
3481 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3482 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3483 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3484 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3485 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3486 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3487 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3488 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3489 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3490 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3491 unsigned int *newseg, bool new_sec, int dir);
3492 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3493 unsigned int start, unsigned int end);
3494 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3495 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3496 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3497 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3498 struct cp_control *cpc);
3499 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3500 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3502 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3503 enum iostat_type io_type);
3504 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3505 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3506 struct f2fs_io_info *fio);
3507 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3508 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3509 block_t old_blkaddr, block_t new_blkaddr,
3510 bool recover_curseg, bool recover_newaddr,
3512 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3513 block_t old_addr, block_t new_addr,
3514 unsigned char version, bool recover_curseg,
3515 bool recover_newaddr);
3516 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3517 block_t old_blkaddr, block_t *new_blkaddr,
3518 struct f2fs_summary *sum, int type,
3519 struct f2fs_io_info *fio);
3520 void f2fs_wait_on_page_writeback(struct page *page,
3521 enum page_type type, bool ordered, bool locked);
3522 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3523 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3525 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3526 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3527 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3528 unsigned int val, int alloc);
3529 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3530 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3531 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3532 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3533 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3534 int __init f2fs_create_segment_manager_caches(void);
3535 void f2fs_destroy_segment_manager_caches(void);
3536 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3537 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3538 enum page_type type, enum temp_type temp);
3539 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3540 unsigned int segno);
3541 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3542 unsigned int segno);
3547 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3548 void f2fs_flush_ckpt_thread(struct f2fs_sb_info *sbi);
3549 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3550 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3551 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3552 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3553 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3554 block_t blkaddr, int type);
3555 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3556 int type, bool sync);
3557 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3558 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3559 long nr_to_write, enum iostat_type io_type);
3560 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3561 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3562 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3563 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3564 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3565 unsigned int devidx, int type);
3566 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3567 unsigned int devidx, int type);
3568 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3569 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3570 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3571 void f2fs_add_orphan_inode(struct inode *inode);
3572 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3573 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3574 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3575 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3576 void f2fs_remove_dirty_inode(struct inode *inode);
3577 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type,
3579 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3580 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3581 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3582 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3583 int __init f2fs_create_checkpoint_caches(void);
3584 void f2fs_destroy_checkpoint_caches(void);
3585 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3586 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3587 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3588 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3593 int __init f2fs_init_bioset(void);
3594 void f2fs_destroy_bioset(void);
3595 int f2fs_init_bio_entry_cache(void);
3596 void f2fs_destroy_bio_entry_cache(void);
3597 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3598 struct bio *bio, enum page_type type);
3599 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3600 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3601 struct inode *inode, struct page *page,
3602 nid_t ino, enum page_type type);
3603 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3604 struct bio **bio, struct page *page);
3605 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3606 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3607 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3608 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3609 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3610 block_t blk_addr, struct bio *bio);
3611 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3612 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3613 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3614 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3615 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3616 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3617 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3618 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3619 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3620 int op_flags, bool for_write);
3621 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3622 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3624 struct page *f2fs_get_new_data_page(struct inode *inode,
3625 struct page *ipage, pgoff_t index, bool new_i_size);
3626 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3627 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3628 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3629 int create, int flag);
3630 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3631 u64 start, u64 len);
3632 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3633 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3634 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3635 int f2fs_write_single_data_page(struct page *page, int *submitted,
3636 struct bio **bio, sector_t *last_block,
3637 struct writeback_control *wbc,
3638 enum iostat_type io_type,
3639 int compr_blocks, bool allow_balance);
3640 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3641 unsigned int length);
3642 int f2fs_release_page(struct page *page, gfp_t wait);
3643 #ifdef CONFIG_MIGRATION
3644 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3645 struct page *page, enum migrate_mode mode);
3647 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3648 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3649 int f2fs_init_post_read_processing(void);
3650 void f2fs_destroy_post_read_processing(void);
3651 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3652 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3657 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3658 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3659 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3660 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force,
3661 unsigned int segno);
3662 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3663 int f2fs_resize_fs(struct file *filp, __u64 block_count);
3664 int __init f2fs_create_garbage_collection_cache(void);
3665 void f2fs_destroy_garbage_collection_cache(void);
3670 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3671 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3672 int __init f2fs_create_recovery_cache(void);
3673 void f2fs_destroy_recovery_cache(void);
3678 #ifdef CONFIG_F2FS_STAT_FS
3679 struct f2fs_stat_info {
3680 struct list_head stat_list;
3681 struct f2fs_sb_info *sbi;
3682 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3683 int main_area_segs, main_area_sections, main_area_zones;
3684 unsigned long long hit_largest, hit_cached, hit_rbtree;
3685 unsigned long long hit_total, total_ext;
3686 int ext_tree, zombie_tree, ext_node;
3687 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3688 int ndirty_data, ndirty_qdata;
3690 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3691 int nats, dirty_nats, sits, dirty_sits;
3692 int free_nids, avail_nids, alloc_nids;
3693 int total_count, utilization;
3694 int bg_gc, nr_wb_cp_data, nr_wb_data;
3695 int nr_rd_data, nr_rd_node, nr_rd_meta;
3696 int nr_dio_read, nr_dio_write;
3697 unsigned int io_skip_bggc, other_skip_bggc;
3698 int nr_flushing, nr_flushed, flush_list_empty;
3699 int nr_discarding, nr_discarded;
3701 unsigned int undiscard_blks;
3702 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3703 unsigned int cur_ckpt_time, peak_ckpt_time;
3704 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3706 unsigned long long compr_blocks;
3707 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3708 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3709 unsigned int bimodal, avg_vblocks;
3710 int util_free, util_valid, util_invalid;
3711 int rsvd_segs, overp_segs;
3712 int dirty_count, node_pages, meta_pages, compress_pages;
3713 int compress_page_hit;
3714 int prefree_count, call_count, cp_count, bg_cp_count;
3715 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3716 int bg_node_segs, bg_data_segs;
3717 int tot_blks, data_blks, node_blks;
3718 int bg_data_blks, bg_node_blks;
3719 unsigned long long skipped_atomic_files[2];
3720 int curseg[NR_CURSEG_TYPE];
3721 int cursec[NR_CURSEG_TYPE];
3722 int curzone[NR_CURSEG_TYPE];
3723 unsigned int dirty_seg[NR_CURSEG_TYPE];
3724 unsigned int full_seg[NR_CURSEG_TYPE];
3725 unsigned int valid_blks[NR_CURSEG_TYPE];
3727 unsigned int meta_count[META_MAX];
3728 unsigned int segment_count[2];
3729 unsigned int block_count[2];
3730 unsigned int inplace_count;
3731 unsigned long long base_mem, cache_mem, page_mem;
3734 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3736 return (struct f2fs_stat_info *)sbi->stat_info;
3739 #define stat_inc_cp_count(si) ((si)->cp_count++)
3740 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3741 #define stat_inc_call_count(si) ((si)->call_count++)
3742 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3743 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3744 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3745 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3746 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3747 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3748 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3749 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3750 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3751 #define stat_inc_inline_xattr(inode) \
3753 if (f2fs_has_inline_xattr(inode)) \
3754 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3756 #define stat_dec_inline_xattr(inode) \
3758 if (f2fs_has_inline_xattr(inode)) \
3759 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3761 #define stat_inc_inline_inode(inode) \
3763 if (f2fs_has_inline_data(inode)) \
3764 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3766 #define stat_dec_inline_inode(inode) \
3768 if (f2fs_has_inline_data(inode)) \
3769 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3771 #define stat_inc_inline_dir(inode) \
3773 if (f2fs_has_inline_dentry(inode)) \
3774 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3776 #define stat_dec_inline_dir(inode) \
3778 if (f2fs_has_inline_dentry(inode)) \
3779 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3781 #define stat_inc_compr_inode(inode) \
3783 if (f2fs_compressed_file(inode)) \
3784 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3786 #define stat_dec_compr_inode(inode) \
3788 if (f2fs_compressed_file(inode)) \
3789 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3791 #define stat_add_compr_blocks(inode, blocks) \
3792 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3793 #define stat_sub_compr_blocks(inode, blocks) \
3794 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3795 #define stat_inc_meta_count(sbi, blkaddr) \
3797 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3798 atomic_inc(&(sbi)->meta_count[META_CP]); \
3799 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3800 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3801 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3802 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3803 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3804 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3806 #define stat_inc_seg_type(sbi, curseg) \
3807 ((sbi)->segment_count[(curseg)->alloc_type]++)
3808 #define stat_inc_block_count(sbi, curseg) \
3809 ((sbi)->block_count[(curseg)->alloc_type]++)
3810 #define stat_inc_inplace_blocks(sbi) \
3811 (atomic_inc(&(sbi)->inplace_count))
3812 #define stat_update_max_atomic_write(inode) \
3814 int cur = F2FS_I_SB(inode)->atomic_files; \
3815 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3817 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3819 #define stat_inc_volatile_write(inode) \
3820 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3821 #define stat_dec_volatile_write(inode) \
3822 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3823 #define stat_update_max_volatile_write(inode) \
3825 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3826 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3828 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3830 #define stat_inc_seg_count(sbi, type, gc_type) \
3832 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3834 if ((type) == SUM_TYPE_DATA) { \
3836 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3839 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3843 #define stat_inc_tot_blk_count(si, blks) \
3844 ((si)->tot_blks += (blks))
3846 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3848 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3849 stat_inc_tot_blk_count(si, blks); \
3850 si->data_blks += (blks); \
3851 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3854 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3856 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3857 stat_inc_tot_blk_count(si, blks); \
3858 si->node_blks += (blks); \
3859 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3862 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3863 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3864 void __init f2fs_create_root_stats(void);
3865 void f2fs_destroy_root_stats(void);
3866 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
3868 #define stat_inc_cp_count(si) do { } while (0)
3869 #define stat_inc_bg_cp_count(si) do { } while (0)
3870 #define stat_inc_call_count(si) do { } while (0)
3871 #define stat_inc_bggc_count(si) do { } while (0)
3872 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3873 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3874 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3875 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3876 #define stat_inc_total_hit(sbi) do { } while (0)
3877 #define stat_inc_rbtree_node_hit(sbi) do { } while (0)
3878 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3879 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3880 #define stat_inc_inline_xattr(inode) do { } while (0)
3881 #define stat_dec_inline_xattr(inode) do { } while (0)
3882 #define stat_inc_inline_inode(inode) do { } while (0)
3883 #define stat_dec_inline_inode(inode) do { } while (0)
3884 #define stat_inc_inline_dir(inode) do { } while (0)
3885 #define stat_dec_inline_dir(inode) do { } while (0)
3886 #define stat_inc_compr_inode(inode) do { } while (0)
3887 #define stat_dec_compr_inode(inode) do { } while (0)
3888 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
3889 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
3890 #define stat_update_max_atomic_write(inode) do { } while (0)
3891 #define stat_inc_volatile_write(inode) do { } while (0)
3892 #define stat_dec_volatile_write(inode) do { } while (0)
3893 #define stat_update_max_volatile_write(inode) do { } while (0)
3894 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3895 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3896 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3897 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3898 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3899 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3900 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3901 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3903 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3904 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3905 static inline void __init f2fs_create_root_stats(void) { }
3906 static inline void f2fs_destroy_root_stats(void) { }
3907 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
3910 extern const struct file_operations f2fs_dir_operations;
3911 extern const struct file_operations f2fs_file_operations;
3912 extern const struct inode_operations f2fs_file_inode_operations;
3913 extern const struct address_space_operations f2fs_dblock_aops;
3914 extern const struct address_space_operations f2fs_node_aops;
3915 extern const struct address_space_operations f2fs_meta_aops;
3916 extern const struct inode_operations f2fs_dir_inode_operations;
3917 extern const struct inode_operations f2fs_symlink_inode_operations;
3918 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3919 extern const struct inode_operations f2fs_special_inode_operations;
3920 extern struct kmem_cache *f2fs_inode_entry_slab;
3925 bool f2fs_may_inline_data(struct inode *inode);
3926 bool f2fs_sanity_check_inline_data(struct inode *inode);
3927 bool f2fs_may_inline_dentry(struct inode *inode);
3928 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3929 void f2fs_truncate_inline_inode(struct inode *inode,
3930 struct page *ipage, u64 from);
3931 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3932 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3933 int f2fs_convert_inline_inode(struct inode *inode);
3934 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
3935 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3936 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3937 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3938 const struct f2fs_filename *fname,
3939 struct page **res_page);
3940 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3941 struct page *ipage);
3942 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
3943 struct inode *inode, nid_t ino, umode_t mode);
3944 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3945 struct page *page, struct inode *dir,
3946 struct inode *inode);
3947 bool f2fs_empty_inline_dir(struct inode *dir);
3948 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3949 struct fscrypt_str *fstr);
3950 int f2fs_inline_data_fiemap(struct inode *inode,
3951 struct fiemap_extent_info *fieinfo,
3952 __u64 start, __u64 len);
3957 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3958 struct shrink_control *sc);
3959 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3960 struct shrink_control *sc);
3961 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3962 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3967 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3968 struct rb_entry *cached_re, unsigned int ofs);
3969 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
3970 struct rb_root_cached *root,
3971 struct rb_node **parent,
3972 unsigned long long key, bool *left_most);
3973 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3974 struct rb_root_cached *root,
3975 struct rb_node **parent,
3976 unsigned int ofs, bool *leftmost);
3977 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
3978 struct rb_entry *cached_re, unsigned int ofs,
3979 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3980 struct rb_node ***insert_p, struct rb_node **insert_parent,
3981 bool force, bool *leftmost);
3982 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3983 struct rb_root_cached *root, bool check_key);
3984 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3985 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
3986 void f2fs_drop_extent_tree(struct inode *inode);
3987 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3988 void f2fs_destroy_extent_tree(struct inode *inode);
3989 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3990 struct extent_info *ei);
3991 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3992 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3993 pgoff_t fofs, block_t blkaddr, unsigned int len);
3994 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3995 int __init f2fs_create_extent_cache(void);
3996 void f2fs_destroy_extent_cache(void);
4001 #define MIN_RA_MUL 2
4002 #define MAX_RA_MUL 256
4004 int __init f2fs_init_sysfs(void);
4005 void f2fs_exit_sysfs(void);
4006 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4007 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4010 extern const struct fsverity_operations f2fs_verityops;
4015 static inline bool f2fs_encrypted_file(struct inode *inode)
4017 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4020 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4022 #ifdef CONFIG_FS_ENCRYPTION
4023 file_set_encrypt(inode);
4024 f2fs_set_inode_flags(inode);
4029 * Returns true if the reads of the inode's data need to undergo some
4030 * postprocessing step, like decryption or authenticity verification.
4032 static inline bool f2fs_post_read_required(struct inode *inode)
4034 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4035 f2fs_compressed_file(inode);
4041 #ifdef CONFIG_F2FS_FS_COMPRESSION
4042 bool f2fs_is_compressed_page(struct page *page);
4043 struct page *f2fs_compress_control_page(struct page *page);
4044 int f2fs_prepare_compress_overwrite(struct inode *inode,
4045 struct page **pagep, pgoff_t index, void **fsdata);
4046 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4047 pgoff_t index, unsigned copied);
4048 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4049 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4050 bool f2fs_is_compress_backend_ready(struct inode *inode);
4051 int f2fs_init_compress_mempool(void);
4052 void f2fs_destroy_compress_mempool(void);
4053 void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
4054 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4056 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4057 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4058 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4059 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4060 int f2fs_write_multi_pages(struct compress_ctx *cc,
4062 struct writeback_control *wbc,
4063 enum iostat_type io_type);
4064 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4065 void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4066 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4067 unsigned int c_len);
4068 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4069 unsigned nr_pages, sector_t *last_block_in_bio,
4070 bool is_readahead, bool for_write);
4071 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4072 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
4073 void f2fs_put_page_dic(struct page *page);
4074 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4075 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4076 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4077 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4078 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4079 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4080 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4081 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4082 int __init f2fs_init_compress_cache(void);
4083 void f2fs_destroy_compress_cache(void);
4084 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4085 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4086 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4087 nid_t ino, block_t blkaddr);
4088 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4090 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4091 #define inc_compr_inode_stat(inode) \
4093 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4094 sbi->compr_new_inode++; \
4096 #define add_compr_block_stat(inode, blocks) \
4098 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4099 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4100 sbi->compr_written_block += blocks; \
4101 sbi->compr_saved_block += diff; \
4104 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4105 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4107 if (!f2fs_compressed_file(inode))
4109 /* not support compression */
4112 static inline struct page *f2fs_compress_control_page(struct page *page)
4115 return ERR_PTR(-EINVAL);
4117 static inline int f2fs_init_compress_mempool(void) { return 0; }
4118 static inline void f2fs_destroy_compress_mempool(void) { }
4119 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
4120 static inline void f2fs_end_read_compressed_page(struct page *page,
4121 bool failed, block_t blkaddr)
4125 static inline void f2fs_put_page_dic(struct page *page)
4129 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
4130 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
4131 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4132 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4133 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4134 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4135 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4136 static inline void f2fs_destroy_compress_cache(void) { }
4137 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4138 block_t blkaddr) { }
4139 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4140 struct page *page, nid_t ino, block_t blkaddr) { }
4141 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4142 struct page *page, block_t blkaddr) { return false; }
4143 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4145 #define inc_compr_inode_stat(inode) do { } while (0)
4146 static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4147 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4148 unsigned int c_len) { }
4151 static inline void set_compress_context(struct inode *inode)
4153 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4155 F2FS_I(inode)->i_compress_algorithm =
4156 F2FS_OPTION(sbi).compress_algorithm;
4157 F2FS_I(inode)->i_log_cluster_size =
4158 F2FS_OPTION(sbi).compress_log_size;
4159 F2FS_I(inode)->i_compress_flag =
4160 F2FS_OPTION(sbi).compress_chksum ?
4161 1 << COMPRESS_CHKSUM : 0;
4162 F2FS_I(inode)->i_cluster_size =
4163 1 << F2FS_I(inode)->i_log_cluster_size;
4164 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4165 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4166 F2FS_OPTION(sbi).compress_level)
4167 F2FS_I(inode)->i_compress_flag |=
4168 F2FS_OPTION(sbi).compress_level <<
4169 COMPRESS_LEVEL_OFFSET;
4170 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4171 set_inode_flag(inode, FI_COMPRESSED_FILE);
4172 stat_inc_compr_inode(inode);
4173 inc_compr_inode_stat(inode);
4174 f2fs_mark_inode_dirty_sync(inode, true);
4177 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4179 struct f2fs_inode_info *fi = F2FS_I(inode);
4181 if (!f2fs_compressed_file(inode))
4183 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
4186 fi->i_flags &= ~F2FS_COMPR_FL;
4187 stat_dec_compr_inode(inode);
4188 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4189 f2fs_mark_inode_dirty_sync(inode, true);
4193 #define F2FS_FEATURE_FUNCS(name, flagname) \
4194 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4196 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4199 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4200 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4201 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4202 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4203 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4204 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4205 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4206 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4207 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4208 F2FS_FEATURE_FUNCS(verity, VERITY);
4209 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4210 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4211 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4212 F2FS_FEATURE_FUNCS(readonly, RO);
4214 static inline bool f2fs_may_extent_tree(struct inode *inode)
4216 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4218 if (!test_opt(sbi, EXTENT_CACHE) ||
4219 is_inode_flag_set(inode, FI_NO_EXTENT) ||
4220 (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
4221 !f2fs_sb_has_readonly(sbi)))
4225 * for recovered files during mount do not create extents
4226 * if shrinker is not registered.
4228 if (list_empty(&sbi->s_list))
4231 return S_ISREG(inode->i_mode);
4234 #ifdef CONFIG_BLK_DEV_ZONED
4235 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4238 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4240 return test_bit(zno, FDEV(devi).blkz_seq);
4244 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4246 return f2fs_sb_has_blkzoned(sbi);
4249 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4251 return blk_queue_discard(bdev_get_queue(bdev)) ||
4252 bdev_is_zoned(bdev);
4255 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4259 if (!f2fs_is_multi_device(sbi))
4260 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4262 for (i = 0; i < sbi->s_ndevs; i++)
4263 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4268 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4270 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4271 f2fs_hw_should_discard(sbi);
4274 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4278 if (!f2fs_is_multi_device(sbi))
4279 return bdev_read_only(sbi->sb->s_bdev);
4281 for (i = 0; i < sbi->s_ndevs; i++)
4282 if (bdev_read_only(FDEV(i).bdev))
4287 static inline bool f2fs_dev_is_readonly(struct f2fs_sb_info *sbi)
4289 return f2fs_sb_has_readonly(sbi) || f2fs_hw_is_readonly(sbi);
4292 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4294 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4297 static inline bool f2fs_may_compress(struct inode *inode)
4299 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4300 f2fs_is_atomic_file(inode) ||
4301 f2fs_is_volatile_file(inode))
4303 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4306 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4307 u64 blocks, bool add)
4309 int diff = F2FS_I(inode)->i_cluster_size - blocks;
4310 struct f2fs_inode_info *fi = F2FS_I(inode);
4312 /* don't update i_compr_blocks if saved blocks were released */
4313 if (!add && !atomic_read(&fi->i_compr_blocks))
4317 atomic_add(diff, &fi->i_compr_blocks);
4318 stat_add_compr_blocks(inode, diff);
4320 atomic_sub(diff, &fi->i_compr_blocks);
4321 stat_sub_compr_blocks(inode, diff);
4323 f2fs_mark_inode_dirty_sync(inode, true);
4326 static inline int block_unaligned_IO(struct inode *inode,
4327 struct kiocb *iocb, struct iov_iter *iter)
4329 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4330 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4331 loff_t offset = iocb->ki_pos;
4332 unsigned long align = offset | iov_iter_alignment(iter);
4334 return align & blocksize_mask;
4337 static inline bool f2fs_force_buffered_io(struct inode *inode,
4338 struct kiocb *iocb, struct iov_iter *iter)
4340 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4341 int rw = iov_iter_rw(iter);
4343 if (f2fs_post_read_required(inode))
4345 if (f2fs_is_multi_device(sbi))
4348 * for blkzoned device, fallback direct IO to buffered IO, so
4349 * all IOs can be serialized by log-structured write.
4351 if (f2fs_sb_has_blkzoned(sbi))
4353 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4354 if (block_unaligned_IO(inode, iocb, iter))
4356 if (F2FS_IO_ALIGNED(sbi))
4359 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
4365 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4367 return fsverity_active(inode) &&
4368 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4371 #ifdef CONFIG_F2FS_FAULT_INJECTION
4372 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4375 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4378 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4381 if (f2fs_sb_has_quota_ino(sbi))
4383 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4384 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4385 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4391 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4393 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4396 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4397 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4399 #endif /* _LINUX_F2FS_H */