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
255 /* for the list of ino */
257 ORPHAN_INO, /* for orphan ino list */
258 APPEND_INO, /* for append ino list */
259 UPDATE_INO, /* for update ino list */
260 TRANS_DIR_INO, /* for trasactions dir ino list */
261 FLUSH_INO, /* for multiple device flushing */
262 MAX_INO_ENTRY, /* max. list */
266 struct list_head list; /* list head */
267 nid_t ino; /* inode number */
268 unsigned int dirty_device; /* dirty device bitmap */
271 /* for the list of inodes to be GCed */
273 struct list_head list; /* list head */
274 struct inode *inode; /* vfs inode pointer */
277 struct fsync_node_entry {
278 struct list_head list; /* list head */
279 struct page *page; /* warm node page pointer */
280 unsigned int seq_id; /* sequence id */
284 struct completion wait; /* completion for checkpoint done */
285 struct llist_node llnode; /* llist_node to be linked in wait queue */
286 int ret; /* return code of checkpoint */
287 ktime_t queue_time; /* request queued time */
290 struct ckpt_req_control {
291 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
292 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
293 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
294 atomic_t issued_ckpt; /* # of actually issued ckpts */
295 atomic_t total_ckpt; /* # of total ckpts */
296 atomic_t queued_ckpt; /* # of queued ckpts */
297 struct llist_head issue_list; /* list for command issue */
298 spinlock_t stat_lock; /* lock for below checkpoint time stats */
299 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
300 unsigned int peak_time; /* peak wait time in msec until now */
303 /* for the bitmap indicate blocks to be discarded */
304 struct discard_entry {
305 struct list_head list; /* list head */
306 block_t start_blkaddr; /* start blockaddr of current segment */
307 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
310 /* default discard granularity of inner discard thread, unit: block count */
311 #define DEFAULT_DISCARD_GRANULARITY 16
313 /* max discard pend list number */
314 #define MAX_PLIST_NUM 512
315 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
316 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
319 D_PREP, /* initial */
320 D_PARTIAL, /* partially submitted */
321 D_SUBMIT, /* all submitted */
322 D_DONE, /* finished */
325 struct discard_info {
326 block_t lstart; /* logical start address */
327 block_t len; /* length */
328 block_t start; /* actual start address in dev */
332 struct rb_node rb_node; /* rb node located in rb-tree */
335 block_t lstart; /* logical start address */
336 block_t len; /* length */
337 block_t start; /* actual start address in dev */
339 struct discard_info di; /* discard info */
342 struct list_head list; /* command list */
343 struct completion wait; /* compleation */
344 struct block_device *bdev; /* bdev */
345 unsigned short ref; /* reference count */
346 unsigned char state; /* state */
347 unsigned char queued; /* queued discard */
348 int error; /* bio error */
349 spinlock_t lock; /* for state/bio_ref updating */
350 unsigned short bio_ref; /* bio reference count */
361 struct discard_policy {
362 int type; /* type of discard */
363 unsigned int min_interval; /* used for candidates exist */
364 unsigned int mid_interval; /* used for device busy */
365 unsigned int max_interval; /* used for candidates not exist */
366 unsigned int max_requests; /* # of discards issued per round */
367 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
368 bool io_aware; /* issue discard in idle time */
369 bool sync; /* submit discard with REQ_SYNC flag */
370 bool ordered; /* issue discard by lba order */
371 bool timeout; /* discard timeout for put_super */
372 unsigned int granularity; /* discard granularity */
375 struct discard_cmd_control {
376 struct task_struct *f2fs_issue_discard; /* discard thread */
377 struct list_head entry_list; /* 4KB discard entry list */
378 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
379 struct list_head wait_list; /* store on-flushing entries */
380 struct list_head fstrim_list; /* in-flight discard from fstrim */
381 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
382 unsigned int discard_wake; /* to wake up discard thread */
383 struct mutex cmd_lock;
384 unsigned int nr_discards; /* # of discards in the list */
385 unsigned int max_discards; /* max. discards to be issued */
386 unsigned int discard_granularity; /* discard granularity */
387 unsigned int undiscard_blks; /* # of undiscard blocks */
388 unsigned int next_pos; /* next discard position */
389 atomic_t issued_discard; /* # of issued discard */
390 atomic_t queued_discard; /* # of queued discard */
391 atomic_t discard_cmd_cnt; /* # of cached cmd count */
392 struct rb_root_cached root; /* root of discard rb-tree */
393 bool rbtree_check; /* config for consistence check */
396 /* for the list of fsync inodes, used only during recovery */
397 struct fsync_inode_entry {
398 struct list_head list; /* list head */
399 struct inode *inode; /* vfs inode pointer */
400 block_t blkaddr; /* block address locating the last fsync */
401 block_t last_dentry; /* block address locating the last dentry */
404 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
405 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
407 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
408 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
409 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
410 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
412 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
413 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
415 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
417 int before = nats_in_cursum(journal);
419 journal->n_nats = cpu_to_le16(before + i);
423 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
425 int before = sits_in_cursum(journal);
427 journal->n_sits = cpu_to_le16(before + i);
431 static inline bool __has_cursum_space(struct f2fs_journal *journal,
434 if (type == NAT_JOURNAL)
435 return size <= MAX_NAT_JENTRIES(journal);
436 return size <= MAX_SIT_JENTRIES(journal);
439 /* for inline stuff */
440 #define DEF_INLINE_RESERVED_SIZE 1
441 static inline int get_extra_isize(struct inode *inode);
442 static inline int get_inline_xattr_addrs(struct inode *inode);
443 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
444 (CUR_ADDRS_PER_INODE(inode) - \
445 get_inline_xattr_addrs(inode) - \
446 DEF_INLINE_RESERVED_SIZE))
449 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
450 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
452 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
453 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
454 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
455 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
456 NR_INLINE_DENTRY(inode) + \
457 INLINE_DENTRY_BITMAP_SIZE(inode)))
460 * For INODE and NODE manager
462 /* for directory operations */
464 struct f2fs_filename {
466 * The filename the user specified. This is NULL for some
467 * filesystem-internal operations, e.g. converting an inline directory
468 * to a non-inline one, or roll-forward recovering an encrypted dentry.
470 const struct qstr *usr_fname;
473 * The on-disk filename. For encrypted directories, this is encrypted.
474 * This may be NULL for lookups in an encrypted dir without the key.
476 struct fscrypt_str disk_name;
478 /* The dirhash of this filename */
481 #ifdef CONFIG_FS_ENCRYPTION
483 * For lookups in encrypted directories: either the buffer backing
484 * disk_name, or a buffer that holds the decoded no-key name.
486 struct fscrypt_str crypto_buf;
488 #ifdef CONFIG_UNICODE
490 * For casefolded directories: the casefolded name, but it's left NULL
491 * if the original name is not valid Unicode, if the directory is both
492 * casefolded and encrypted and its encryption key is unavailable, or if
493 * the filesystem is doing an internal operation where usr_fname is also
494 * NULL. In all these cases we fall back to treating the name as an
495 * opaque byte sequence.
497 struct fscrypt_str cf_name;
501 struct f2fs_dentry_ptr {
504 struct f2fs_dir_entry *dentry;
505 __u8 (*filename)[F2FS_SLOT_LEN];
510 static inline void make_dentry_ptr_block(struct inode *inode,
511 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
514 d->max = NR_DENTRY_IN_BLOCK;
515 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
516 d->bitmap = t->dentry_bitmap;
517 d->dentry = t->dentry;
518 d->filename = t->filename;
521 static inline void make_dentry_ptr_inline(struct inode *inode,
522 struct f2fs_dentry_ptr *d, void *t)
524 int entry_cnt = NR_INLINE_DENTRY(inode);
525 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
526 int reserved_size = INLINE_RESERVED_SIZE(inode);
530 d->nr_bitmap = bitmap_size;
532 d->dentry = t + bitmap_size + reserved_size;
533 d->filename = t + bitmap_size + reserved_size +
534 SIZE_OF_DIR_ENTRY * entry_cnt;
538 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
539 * as its node offset to distinguish from index node blocks.
540 * But some bits are used to mark the node block.
542 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
545 ALLOC_NODE, /* allocate a new node page if needed */
546 LOOKUP_NODE, /* look up a node without readahead */
548 * look up a node with readahead called
553 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
555 /* congestion wait timeout value, default: 20ms */
556 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
558 /* maximum retry quota flush count */
559 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
561 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
563 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
565 /* dirty segments threshold for triggering CP */
566 #define DEFAULT_DIRTY_THRESHOLD 4
568 /* for in-memory extent cache entry */
569 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
571 /* number of extent info in extent cache we try to shrink */
572 #define EXTENT_CACHE_SHRINK_NUMBER 128
575 struct rb_node rb_node; /* rb node located in rb-tree */
578 unsigned int ofs; /* start offset of the entry */
579 unsigned int len; /* length of the entry */
581 unsigned long long key; /* 64-bits key */
586 unsigned int fofs; /* start offset in a file */
587 unsigned int len; /* length of the extent */
588 u32 blk; /* start block address of the extent */
589 #ifdef CONFIG_F2FS_FS_COMPRESSION
590 unsigned int c_len; /* physical extent length of compressed blocks */
595 struct rb_node rb_node; /* rb node located in rb-tree */
596 struct extent_info ei; /* extent info */
597 struct list_head list; /* node in global extent list of sbi */
598 struct extent_tree *et; /* extent tree pointer */
602 nid_t ino; /* inode number */
603 struct rb_root_cached root; /* root of extent info rb-tree */
604 struct extent_node *cached_en; /* recently accessed extent node */
605 struct extent_info largest; /* largested extent info */
606 struct list_head list; /* to be used by sbi->zombie_list */
607 rwlock_t lock; /* protect extent info rb-tree */
608 atomic_t node_cnt; /* # of extent node in rb-tree*/
609 bool largest_updated; /* largest extent updated */
613 * This structure is taken from ext4_map_blocks.
615 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
617 #define F2FS_MAP_NEW (1 << BH_New)
618 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
619 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
620 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
623 struct f2fs_map_blocks {
624 struct block_device *m_bdev; /* for multi-device dio */
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 */
633 bool m_multidev_dio; /* indicate it allows multi-device dio */
636 /* for flag in get_data_block */
638 F2FS_GET_BLOCK_DEFAULT,
639 F2FS_GET_BLOCK_FIEMAP,
642 F2FS_GET_BLOCK_PRE_DIO,
643 F2FS_GET_BLOCK_PRE_AIO,
644 F2FS_GET_BLOCK_PRECACHE,
648 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
650 #define FADVISE_COLD_BIT 0x01
651 #define FADVISE_LOST_PINO_BIT 0x02
652 #define FADVISE_ENCRYPT_BIT 0x04
653 #define FADVISE_ENC_NAME_BIT 0x08
654 #define FADVISE_KEEP_SIZE_BIT 0x10
655 #define FADVISE_HOT_BIT 0x20
656 #define FADVISE_VERITY_BIT 0x40
657 #define FADVISE_TRUNC_BIT 0x80
659 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
661 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
662 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
663 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
665 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
666 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
667 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
669 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
670 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
672 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
673 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
675 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
676 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
678 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
679 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
680 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
682 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
683 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
685 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
686 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
687 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
689 #define DEF_DIR_LEVEL 0
697 /* used for f2fs_inode_info->flags */
699 FI_NEW_INODE, /* indicate newly allocated inode */
700 FI_DIRTY_INODE, /* indicate inode is dirty or not */
701 FI_AUTO_RECOVER, /* indicate inode is recoverable */
702 FI_DIRTY_DIR, /* indicate directory has dirty pages */
703 FI_INC_LINK, /* need to increment i_nlink */
704 FI_ACL_MODE, /* indicate acl mode */
705 FI_NO_ALLOC, /* should not allocate any blocks */
706 FI_FREE_NID, /* free allocated nide */
707 FI_NO_EXTENT, /* not to use the extent cache */
708 FI_INLINE_XATTR, /* used for inline xattr */
709 FI_INLINE_DATA, /* used for inline data*/
710 FI_INLINE_DENTRY, /* used for inline dentry */
711 FI_APPEND_WRITE, /* inode has appended data */
712 FI_UPDATE_WRITE, /* inode has in-place-update data */
713 FI_NEED_IPU, /* used for ipu per file */
714 FI_ATOMIC_FILE, /* indicate atomic file */
715 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
716 FI_VOLATILE_FILE, /* indicate volatile file */
717 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
718 FI_DROP_CACHE, /* drop dirty page cache */
719 FI_DATA_EXIST, /* indicate data exists */
720 FI_INLINE_DOTS, /* indicate inline dot dentries */
721 FI_DO_DEFRAG, /* indicate defragment is running */
722 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
723 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
724 FI_HOT_DATA, /* indicate file is hot */
725 FI_EXTRA_ATTR, /* indicate file has extra attribute */
726 FI_PROJ_INHERIT, /* indicate file inherits projectid */
727 FI_PIN_FILE, /* indicate file should not be gced */
728 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
729 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
730 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
731 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
732 FI_MMAP_FILE, /* indicate file was mmapped */
733 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
734 FI_COMPRESS_RELEASED, /* compressed blocks were released */
735 FI_ALIGNED_WRITE, /* enable aligned write */
736 FI_MAX, /* max flag, never be used */
739 struct f2fs_inode_info {
740 struct inode vfs_inode; /* serve a vfs inode */
741 unsigned long i_flags; /* keep an inode flags for ioctl */
742 unsigned char i_advise; /* use to give file attribute hints */
743 unsigned char i_dir_level; /* use for dentry level for large dir */
744 unsigned int i_current_depth; /* only for directory depth */
745 /* for gc failure statistic */
746 unsigned int i_gc_failures[MAX_GC_FAILURE];
747 unsigned int i_pino; /* parent inode number */
748 umode_t i_acl_mode; /* keep file acl mode temporarily */
750 /* Use below internally in f2fs*/
751 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
752 struct rw_semaphore i_sem; /* protect fi info */
753 atomic_t dirty_pages; /* # of dirty pages */
754 f2fs_hash_t chash; /* hash value of given file name */
755 unsigned int clevel; /* maximum level of given file name */
756 struct task_struct *task; /* lookup and create consistency */
757 struct task_struct *cp_task; /* separate cp/wb IO stats*/
758 nid_t i_xattr_nid; /* node id that contains xattrs */
759 loff_t last_disk_size; /* lastly written file size */
760 spinlock_t i_size_lock; /* protect last_disk_size */
763 struct dquot *i_dquot[MAXQUOTAS];
765 /* quota space reservation, managed internally by quota code */
766 qsize_t i_reserved_quota;
768 struct list_head dirty_list; /* dirty list for dirs and files */
769 struct list_head gdirty_list; /* linked in global dirty list */
770 struct list_head inmem_ilist; /* list for inmem inodes */
771 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
772 struct task_struct *inmem_task; /* store inmemory task */
773 struct mutex inmem_lock; /* lock for inmemory pages */
774 struct extent_tree *extent_tree; /* cached extent_tree entry */
776 /* avoid racing between foreground op and gc */
777 struct rw_semaphore i_gc_rwsem[2];
778 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
780 int i_extra_isize; /* size of extra space located in i_addr */
781 kprojid_t i_projid; /* id for project quota */
782 int i_inline_xattr_size; /* inline xattr size */
783 struct timespec64 i_crtime; /* inode creation time */
784 struct timespec64 i_disk_time[4];/* inode disk times */
786 /* for file compress */
787 atomic_t i_compr_blocks; /* # of compressed blocks */
788 unsigned char i_compress_algorithm; /* algorithm type */
789 unsigned char i_log_cluster_size; /* log of cluster size */
790 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
791 unsigned short i_compress_flag; /* compress flag */
792 unsigned int i_cluster_size; /* cluster size */
795 static inline void get_extent_info(struct extent_info *ext,
796 struct f2fs_extent *i_ext)
798 ext->fofs = le32_to_cpu(i_ext->fofs);
799 ext->blk = le32_to_cpu(i_ext->blk);
800 ext->len = le32_to_cpu(i_ext->len);
803 static inline void set_raw_extent(struct extent_info *ext,
804 struct f2fs_extent *i_ext)
806 i_ext->fofs = cpu_to_le32(ext->fofs);
807 i_ext->blk = cpu_to_le32(ext->blk);
808 i_ext->len = cpu_to_le32(ext->len);
811 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
812 u32 blk, unsigned int len)
817 #ifdef CONFIG_F2FS_FS_COMPRESSION
822 static inline bool __is_discard_mergeable(struct discard_info *back,
823 struct discard_info *front, unsigned int max_len)
825 return (back->lstart + back->len == front->lstart) &&
826 (back->len + front->len <= max_len);
829 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
830 struct discard_info *back, unsigned int max_len)
832 return __is_discard_mergeable(back, cur, max_len);
835 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
836 struct discard_info *front, unsigned int max_len)
838 return __is_discard_mergeable(cur, front, max_len);
841 static inline bool __is_extent_mergeable(struct extent_info *back,
842 struct extent_info *front)
844 #ifdef CONFIG_F2FS_FS_COMPRESSION
845 if (back->c_len && back->len != back->c_len)
847 if (front->c_len && front->len != front->c_len)
850 return (back->fofs + back->len == front->fofs &&
851 back->blk + back->len == front->blk);
854 static inline bool __is_back_mergeable(struct extent_info *cur,
855 struct extent_info *back)
857 return __is_extent_mergeable(back, cur);
860 static inline bool __is_front_mergeable(struct extent_info *cur,
861 struct extent_info *front)
863 return __is_extent_mergeable(cur, front);
866 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
867 static inline void __try_update_largest_extent(struct extent_tree *et,
868 struct extent_node *en)
870 if (en->ei.len > et->largest.len) {
871 et->largest = en->ei;
872 et->largest_updated = true;
877 * For free nid management
880 FREE_NID, /* newly added to free nid list */
881 PREALLOC_NID, /* it is preallocated */
892 struct f2fs_nm_info {
893 block_t nat_blkaddr; /* base disk address of NAT */
894 nid_t max_nid; /* maximum possible node ids */
895 nid_t available_nids; /* # of available node ids */
896 nid_t next_scan_nid; /* the next nid to be scanned */
897 unsigned int ram_thresh; /* control the memory footprint */
898 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
899 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
901 /* NAT cache management */
902 struct radix_tree_root nat_root;/* root of the nat entry cache */
903 struct radix_tree_root nat_set_root;/* root of the nat set cache */
904 struct rw_semaphore nat_tree_lock; /* protect nat entry tree */
905 struct list_head nat_entries; /* cached nat entry list (clean) */
906 spinlock_t nat_list_lock; /* protect clean nat entry list */
907 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
908 unsigned int nat_blocks; /* # of nat blocks */
910 /* free node ids management */
911 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
912 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
913 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
914 spinlock_t nid_list_lock; /* protect nid lists ops */
915 struct mutex build_lock; /* lock for build free nids */
916 unsigned char **free_nid_bitmap;
917 unsigned char *nat_block_bitmap;
918 unsigned short *free_nid_count; /* free nid count of NAT block */
921 char *nat_bitmap; /* NAT bitmap pointer */
923 unsigned int nat_bits_blocks; /* # of nat bits blocks */
924 unsigned char *nat_bits; /* NAT bits blocks */
925 unsigned char *full_nat_bits; /* full NAT pages */
926 unsigned char *empty_nat_bits; /* empty NAT pages */
927 #ifdef CONFIG_F2FS_CHECK_FS
928 char *nat_bitmap_mir; /* NAT bitmap mirror */
930 int bitmap_size; /* bitmap size */
934 * this structure is used as one of function parameters.
935 * all the information are dedicated to a given direct node block determined
936 * by the data offset in a file.
938 struct dnode_of_data {
939 struct inode *inode; /* vfs inode pointer */
940 struct page *inode_page; /* its inode page, NULL is possible */
941 struct page *node_page; /* cached direct node page */
942 nid_t nid; /* node id of the direct node block */
943 unsigned int ofs_in_node; /* data offset in the node page */
944 bool inode_page_locked; /* inode page is locked or not */
945 bool node_changed; /* is node block changed */
946 char cur_level; /* level of hole node page */
947 char max_level; /* level of current page located */
948 block_t data_blkaddr; /* block address of the node block */
951 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
952 struct page *ipage, struct page *npage, nid_t nid)
954 memset(dn, 0, sizeof(*dn));
956 dn->inode_page = ipage;
957 dn->node_page = npage;
964 * By default, there are 6 active log areas across the whole main area.
965 * When considering hot and cold data separation to reduce cleaning overhead,
966 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
968 * In the current design, you should not change the numbers intentionally.
969 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
970 * logs individually according to the underlying devices. (default: 6)
971 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
972 * data and 8 for node logs.
974 #define NR_CURSEG_DATA_TYPE (3)
975 #define NR_CURSEG_NODE_TYPE (3)
976 #define NR_CURSEG_INMEM_TYPE (2)
977 #define NR_CURSEG_RO_TYPE (2)
978 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
979 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
982 CURSEG_HOT_DATA = 0, /* directory entry blocks */
983 CURSEG_WARM_DATA, /* data blocks */
984 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
985 CURSEG_HOT_NODE, /* direct node blocks of directory files */
986 CURSEG_WARM_NODE, /* direct node blocks of normal files */
987 CURSEG_COLD_NODE, /* indirect node blocks */
988 NR_PERSISTENT_LOG, /* number of persistent log */
989 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
990 /* pinned file that needs consecutive block address */
991 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
992 NO_CHECK_TYPE, /* number of persistent & inmem log */
996 struct completion wait;
997 struct llist_node llnode;
1002 struct flush_cmd_control {
1003 struct task_struct *f2fs_issue_flush; /* flush thread */
1004 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1005 atomic_t issued_flush; /* # of issued flushes */
1006 atomic_t queued_flush; /* # of queued flushes */
1007 struct llist_head issue_list; /* list for command issue */
1008 struct llist_node *dispatch_list; /* list for command dispatch */
1011 struct f2fs_sm_info {
1012 struct sit_info *sit_info; /* whole segment information */
1013 struct free_segmap_info *free_info; /* free segment information */
1014 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1015 struct curseg_info *curseg_array; /* active segment information */
1017 struct rw_semaphore curseg_lock; /* for preventing curseg change */
1019 block_t seg0_blkaddr; /* block address of 0'th segment */
1020 block_t main_blkaddr; /* start block address of main area */
1021 block_t ssa_blkaddr; /* start block address of SSA area */
1023 unsigned int segment_count; /* total # of segments */
1024 unsigned int main_segments; /* # of segments in main area */
1025 unsigned int reserved_segments; /* # of reserved segments */
1026 unsigned int ovp_segments; /* # of overprovision segments */
1028 /* a threshold to reclaim prefree segments */
1029 unsigned int rec_prefree_segments;
1031 /* for batched trimming */
1032 unsigned int trim_sections; /* # of sections to trim */
1034 struct list_head sit_entry_set; /* sit entry set list */
1036 unsigned int ipu_policy; /* in-place-update policy */
1037 unsigned int min_ipu_util; /* in-place-update threshold */
1038 unsigned int min_fsync_blocks; /* threshold for fsync */
1039 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1040 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1041 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1043 /* for flush command control */
1044 struct flush_cmd_control *fcc_info;
1046 /* for discard command control */
1047 struct discard_cmd_control *dcc_info;
1054 * COUNT_TYPE for monitoring
1056 * f2fs monitors the number of several block types such as on-writeback,
1057 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1059 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1079 * The below are the page types of bios used in submit_bio().
1080 * The available types are:
1081 * DATA User data pages. It operates as async mode.
1082 * NODE Node pages. It operates as async mode.
1083 * META FS metadata pages such as SIT, NAT, CP.
1084 * NR_PAGE_TYPE The number of page types.
1085 * META_FLUSH Make sure the previous pages are written
1086 * with waiting the bio's completion
1087 * ... Only can be used with META.
1089 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1096 INMEM, /* the below types are used by tracepoints only. */
1105 HOT = 0, /* must be zero for meta bio */
1111 enum need_lock_type {
1117 enum cp_reason_type {
1133 APP_DIRECT_IO, /* app direct write IOs */
1134 APP_BUFFERED_IO, /* app buffered write IOs */
1135 APP_WRITE_IO, /* app write IOs */
1136 APP_MAPPED_IO, /* app mapped IOs */
1137 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1138 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1139 FS_META_IO, /* meta IOs from kworker/reclaimer */
1140 FS_GC_DATA_IO, /* data IOs from forground gc */
1141 FS_GC_NODE_IO, /* node IOs from forground gc */
1142 FS_CP_DATA_IO, /* data IOs from checkpoint */
1143 FS_CP_NODE_IO, /* node IOs from checkpoint */
1144 FS_CP_META_IO, /* meta IOs from checkpoint */
1147 APP_DIRECT_READ_IO, /* app direct read IOs */
1148 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1149 APP_READ_IO, /* app read IOs */
1150 APP_MAPPED_READ_IO, /* app mapped read IOs */
1151 FS_DATA_READ_IO, /* data read IOs */
1152 FS_GDATA_READ_IO, /* data read IOs from background gc */
1153 FS_CDATA_READ_IO, /* compressed data read IOs */
1154 FS_NODE_READ_IO, /* node read IOs */
1155 FS_META_READ_IO, /* meta read IOs */
1158 FS_DISCARD, /* discard */
1162 struct f2fs_io_info {
1163 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1164 nid_t ino; /* inode number */
1165 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1166 enum temp_type temp; /* contains HOT/WARM/COLD */
1167 int op; /* contains REQ_OP_ */
1168 int op_flags; /* req_flag_bits */
1169 block_t new_blkaddr; /* new block address to be written */
1170 block_t old_blkaddr; /* old block address before Cow */
1171 struct page *page; /* page to be written */
1172 struct page *encrypted_page; /* encrypted page */
1173 struct page *compressed_page; /* compressed page */
1174 struct list_head list; /* serialize IOs */
1175 bool submitted; /* indicate IO submission */
1176 int need_lock; /* indicate we need to lock cp_rwsem */
1177 bool in_list; /* indicate fio is in io_list */
1178 bool is_por; /* indicate IO is from recovery or not */
1179 bool retry; /* need to reallocate block address */
1180 int compr_blocks; /* # of compressed block addresses */
1181 bool encrypted; /* indicate file is encrypted */
1182 enum iostat_type io_type; /* io type */
1183 struct writeback_control *io_wbc; /* writeback control */
1184 struct bio **bio; /* bio for ipu */
1185 sector_t *last_block; /* last block number in bio */
1186 unsigned char version; /* version of the node */
1191 struct list_head list;
1194 #define is_read_io(rw) ((rw) == READ)
1195 struct f2fs_bio_info {
1196 struct f2fs_sb_info *sbi; /* f2fs superblock */
1197 struct bio *bio; /* bios to merge */
1198 sector_t last_block_in_bio; /* last block number */
1199 struct f2fs_io_info fio; /* store buffered io info. */
1200 struct rw_semaphore io_rwsem; /* blocking op for bio */
1201 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1202 struct list_head io_list; /* track fios */
1203 struct list_head bio_list; /* bio entry list head */
1204 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
1207 #define FDEV(i) (sbi->devs[i])
1208 #define RDEV(i) (raw_super->devs[i])
1209 struct f2fs_dev_info {
1210 struct block_device *bdev;
1211 char path[MAX_PATH_LEN];
1212 unsigned int total_segments;
1215 #ifdef CONFIG_BLK_DEV_ZONED
1216 unsigned int nr_blkz; /* Total number of zones */
1217 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1218 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */
1223 DIR_INODE, /* for dirty dir inode */
1224 FILE_INODE, /* for dirty regular/symlink inode */
1225 DIRTY_META, /* for all dirtied inode metadata */
1226 ATOMIC_FILE, /* for all atomic files */
1230 /* for inner inode cache management */
1231 struct inode_management {
1232 struct radix_tree_root ino_root; /* ino entry array */
1233 spinlock_t ino_lock; /* for ino entry lock */
1234 struct list_head ino_list; /* inode list head */
1235 unsigned long ino_num; /* number of entries */
1239 struct atgc_management {
1240 bool atgc_enabled; /* ATGC is enabled or not */
1241 struct rb_root_cached root; /* root of victim rb-tree */
1242 struct list_head victim_list; /* linked with all victim entries */
1243 unsigned int victim_count; /* victim count in rb-tree */
1244 unsigned int candidate_ratio; /* candidate ratio */
1245 unsigned int max_candidate_count; /* max candidate count */
1246 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1247 unsigned long long age_threshold; /* age threshold */
1250 /* For s_flag in struct f2fs_sb_info */
1252 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1253 SBI_IS_CLOSE, /* specify unmounting */
1254 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1255 SBI_POR_DOING, /* recovery is doing or not */
1256 SBI_NEED_SB_WRITE, /* need to recover superblock */
1257 SBI_NEED_CP, /* need to checkpoint */
1258 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1259 SBI_IS_RECOVERED, /* recovered orphan/data */
1260 SBI_CP_DISABLED, /* CP was disabled last mount */
1261 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1262 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1263 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1264 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1265 SBI_IS_RESIZEFS, /* resizefs is in process */
1274 UMOUNT_DISCARD_TIMEOUT,
1289 BGGC_MODE_ON, /* background gc is on */
1290 BGGC_MODE_OFF, /* background gc is off */
1292 * background gc is on, migrating blocks
1293 * like foreground gc
1298 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1299 FS_MODE_LFS, /* use lfs allocation only */
1300 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1301 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1305 WHINT_MODE_OFF, /* not pass down write hints */
1306 WHINT_MODE_USER, /* try to pass down hints given by users */
1307 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1311 ALLOC_MODE_DEFAULT, /* stay default */
1312 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1316 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1317 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1318 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1323 * automatically compress compression
1327 * automatical compression is disabled.
1328 * user can control the file compression
1334 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1335 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1336 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1339 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1340 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1341 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1344 * Layout of f2fs page.private:
1346 * Layout A: lowest bit should be 1
1347 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1348 * bit 0 PAGE_PRIVATE_NOT_POINTER
1349 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1350 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1351 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1352 * bit 4 PAGE_PRIVATE_INLINE_INODE
1353 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1354 * bit 6- f2fs private data
1356 * Layout B: lowest bit should be 0
1357 * page.private is a wrapped pointer.
1360 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1361 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1362 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1363 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1364 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1365 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1369 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1370 static inline bool page_private_##name(struct page *page) \
1372 return PagePrivate(page) && \
1373 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1374 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1377 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1378 static inline void set_page_private_##name(struct page *page) \
1380 if (!PagePrivate(page)) { \
1382 SetPagePrivate(page); \
1383 set_page_private(page, 0); \
1385 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1386 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1389 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1390 static inline void clear_page_private_##name(struct page *page) \
1392 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1393 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1394 set_page_private(page, 0); \
1395 if (PagePrivate(page)) { \
1396 ClearPagePrivate(page); \
1402 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1403 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1404 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1405 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1406 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1407 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1409 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1410 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1411 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1412 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1413 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1415 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1416 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1417 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1418 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1419 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1421 static inline unsigned long get_page_private_data(struct page *page)
1423 unsigned long data = page_private(page);
1425 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1427 return data >> PAGE_PRIVATE_MAX;
1430 static inline void set_page_private_data(struct page *page, unsigned long data)
1432 if (!PagePrivate(page)) {
1434 SetPagePrivate(page);
1435 set_page_private(page, 0);
1437 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1438 page_private(page) |= data << PAGE_PRIVATE_MAX;
1441 static inline void clear_page_private_data(struct page *page)
1443 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1444 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1445 set_page_private(page, 0);
1446 if (PagePrivate(page)) {
1447 ClearPagePrivate(page);
1453 /* For compression */
1454 enum compress_algorithm_type {
1462 enum compress_flag {
1467 #define COMPRESS_WATERMARK 20
1468 #define COMPRESS_PERCENT 20
1470 #define COMPRESS_DATA_RESERVED_SIZE 4
1471 struct compress_data {
1472 __le32 clen; /* compressed data size */
1473 __le32 chksum; /* compressed data chksum */
1474 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1475 u8 cdata[]; /* compressed data */
1478 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1480 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1482 #define COMPRESS_LEVEL_OFFSET 8
1484 /* compress context */
1485 struct compress_ctx {
1486 struct inode *inode; /* inode the context belong to */
1487 pgoff_t cluster_idx; /* cluster index number */
1488 unsigned int cluster_size; /* page count in cluster */
1489 unsigned int log_cluster_size; /* log of cluster size */
1490 struct page **rpages; /* pages store raw data in cluster */
1491 unsigned int nr_rpages; /* total page number in rpages */
1492 struct page **cpages; /* pages store compressed data in cluster */
1493 unsigned int nr_cpages; /* total page number in cpages */
1494 unsigned int valid_nr_cpages; /* valid page number in cpages */
1495 void *rbuf; /* virtual mapped address on rpages */
1496 struct compress_data *cbuf; /* virtual mapped address on cpages */
1497 size_t rlen; /* valid data length in rbuf */
1498 size_t clen; /* valid data length in cbuf */
1499 void *private; /* payload buffer for specified compression algorithm */
1500 void *private2; /* extra payload buffer */
1503 /* compress context for write IO path */
1504 struct compress_io_ctx {
1505 u32 magic; /* magic number to indicate page is compressed */
1506 struct inode *inode; /* inode the context belong to */
1507 struct page **rpages; /* pages store raw data in cluster */
1508 unsigned int nr_rpages; /* total page number in rpages */
1509 atomic_t pending_pages; /* in-flight compressed page count */
1512 /* Context for decompressing one cluster on the read IO path */
1513 struct decompress_io_ctx {
1514 u32 magic; /* magic number to indicate page is compressed */
1515 struct inode *inode; /* inode the context belong to */
1516 pgoff_t cluster_idx; /* cluster index number */
1517 unsigned int cluster_size; /* page count in cluster */
1518 unsigned int log_cluster_size; /* log of cluster size */
1519 struct page **rpages; /* pages store raw data in cluster */
1520 unsigned int nr_rpages; /* total page number in rpages */
1521 struct page **cpages; /* pages store compressed data in cluster */
1522 unsigned int nr_cpages; /* total page number in cpages */
1523 struct page **tpages; /* temp pages to pad holes in cluster */
1524 void *rbuf; /* virtual mapped address on rpages */
1525 struct compress_data *cbuf; /* virtual mapped address on cpages */
1526 size_t rlen; /* valid data length in rbuf */
1527 size_t clen; /* valid data length in cbuf */
1530 * The number of compressed pages remaining to be read in this cluster.
1531 * This is initially nr_cpages. It is decremented by 1 each time a page
1532 * has been read (or failed to be read). When it reaches 0, the cluster
1533 * is decompressed (or an error is reported).
1535 * If an error occurs before all the pages have been submitted for I/O,
1536 * then this will never reach 0. In this case the I/O submitter is
1537 * responsible for calling f2fs_decompress_end_io() instead.
1539 atomic_t remaining_pages;
1542 * Number of references to this decompress_io_ctx.
1544 * One reference is held for I/O completion. This reference is dropped
1545 * after the pagecache pages are updated and unlocked -- either after
1546 * decompression (and verity if enabled), or after an error.
1548 * In addition, each compressed page holds a reference while it is in a
1549 * bio. These references are necessary prevent compressed pages from
1550 * being freed while they are still in a bio.
1554 bool failed; /* IO error occurred before decompression? */
1555 bool need_verity; /* need fs-verity verification after decompression? */
1556 void *private; /* payload buffer for specified decompression algorithm */
1557 void *private2; /* extra payload buffer */
1558 struct work_struct verity_work; /* work to verify the decompressed pages */
1561 #define NULL_CLUSTER ((unsigned int)(~0))
1562 #define MIN_COMPRESS_LOG_SIZE 2
1563 #define MAX_COMPRESS_LOG_SIZE 8
1564 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1566 struct f2fs_sb_info {
1567 struct super_block *sb; /* pointer to VFS super block */
1568 struct proc_dir_entry *s_proc; /* proc entry */
1569 struct f2fs_super_block *raw_super; /* raw super block pointer */
1570 struct rw_semaphore sb_lock; /* lock for raw super block */
1571 int valid_super_block; /* valid super block no */
1572 unsigned long s_flag; /* flags for sbi */
1573 struct mutex writepages; /* mutex for writepages() */
1575 #ifdef CONFIG_BLK_DEV_ZONED
1576 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1577 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1580 /* for node-related operations */
1581 struct f2fs_nm_info *nm_info; /* node manager */
1582 struct inode *node_inode; /* cache node blocks */
1584 /* for segment-related operations */
1585 struct f2fs_sm_info *sm_info; /* segment manager */
1587 /* for bio operations */
1588 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1589 /* keep migration IO order for LFS mode */
1590 struct rw_semaphore io_order_lock;
1591 mempool_t *write_io_dummy; /* Dummy pages */
1593 /* for checkpoint */
1594 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1595 int cur_cp_pack; /* remain current cp pack */
1596 spinlock_t cp_lock; /* for flag in ckpt */
1597 struct inode *meta_inode; /* cache meta blocks */
1598 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */
1599 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1600 struct rw_semaphore node_write; /* locking node writes */
1601 struct rw_semaphore node_change; /* locking node change */
1602 wait_queue_head_t cp_wait;
1603 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1604 long interval_time[MAX_TIME]; /* to store thresholds */
1605 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1607 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1609 spinlock_t fsync_node_lock; /* for node entry lock */
1610 struct list_head fsync_node_list; /* node list head */
1611 unsigned int fsync_seg_id; /* sequence id */
1612 unsigned int fsync_node_num; /* number of node entries */
1614 /* for orphan inode, use 0'th array */
1615 unsigned int max_orphans; /* max orphan inodes */
1617 /* for inode management */
1618 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1619 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1620 struct mutex flush_lock; /* for flush exclusion */
1622 /* for extent tree cache */
1623 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1624 struct mutex extent_tree_lock; /* locking extent radix tree */
1625 struct list_head extent_list; /* lru list for shrinker */
1626 spinlock_t extent_lock; /* locking extent lru list */
1627 atomic_t total_ext_tree; /* extent tree count */
1628 struct list_head zombie_list; /* extent zombie tree list */
1629 atomic_t total_zombie_tree; /* extent zombie tree count */
1630 atomic_t total_ext_node; /* extent info count */
1632 /* basic filesystem units */
1633 unsigned int log_sectors_per_block; /* log2 sectors per block */
1634 unsigned int log_blocksize; /* log2 block size */
1635 unsigned int blocksize; /* block size */
1636 unsigned int root_ino_num; /* root inode number*/
1637 unsigned int node_ino_num; /* node inode number*/
1638 unsigned int meta_ino_num; /* meta inode number*/
1639 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1640 unsigned int blocks_per_seg; /* blocks per segment */
1641 unsigned int segs_per_sec; /* segments per section */
1642 unsigned int secs_per_zone; /* sections per zone */
1643 unsigned int total_sections; /* total section count */
1644 unsigned int total_node_count; /* total node block count */
1645 unsigned int total_valid_node_count; /* valid node block count */
1646 int dir_level; /* directory level */
1647 int readdir_ra; /* readahead inode in readdir */
1648 u64 max_io_bytes; /* max io bytes to merge IOs */
1650 block_t user_block_count; /* # of user blocks */
1651 block_t total_valid_block_count; /* # of valid blocks */
1652 block_t discard_blks; /* discard command candidats */
1653 block_t last_valid_block_count; /* for recovery */
1654 block_t reserved_blocks; /* configurable reserved blocks */
1655 block_t current_reserved_blocks; /* current reserved blocks */
1657 /* Additional tracking for no checkpoint mode */
1658 block_t unusable_block_count; /* # of blocks saved by last cp */
1660 unsigned int nquota_files; /* # of quota sysfile */
1661 struct rw_semaphore quota_sem; /* blocking cp for flags */
1663 /* # of pages, see count_type */
1664 atomic_t nr_pages[NR_COUNT_TYPE];
1665 /* # of allocated blocks */
1666 struct percpu_counter alloc_valid_block_count;
1668 /* writeback control */
1669 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1671 /* valid inode count */
1672 struct percpu_counter total_valid_inode_count;
1674 struct f2fs_mount_info mount_opt; /* mount options */
1676 /* for cleaning operations */
1677 struct rw_semaphore gc_lock; /*
1678 * semaphore for GC, avoid
1679 * race between GC and GC or CP
1681 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1682 struct atgc_management am; /* atgc management */
1683 unsigned int cur_victim_sec; /* current victim section num */
1684 unsigned int gc_mode; /* current GC state */
1685 unsigned int next_victim_seg[2]; /* next segment in victim section */
1687 /* for skip statistic */
1688 unsigned int atomic_files; /* # of opened atomic file */
1689 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1690 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1692 /* threshold for gc trials on pinned files */
1693 u64 gc_pin_file_threshold;
1694 struct rw_semaphore pin_sem;
1696 /* maximum # of trials to find a victim segment for SSR and GC */
1697 unsigned int max_victim_search;
1698 /* migration granularity of garbage collection, unit: segment */
1699 unsigned int migration_granularity;
1702 * for stat information.
1703 * one is for the LFS mode, and the other is for the SSR mode.
1705 #ifdef CONFIG_F2FS_STAT_FS
1706 struct f2fs_stat_info *stat_info; /* FS status information */
1707 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1708 unsigned int segment_count[2]; /* # of allocated segments */
1709 unsigned int block_count[2]; /* # of allocated blocks */
1710 atomic_t inplace_count; /* # of inplace update */
1711 atomic64_t total_hit_ext; /* # of lookup extent cache */
1712 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1713 atomic64_t read_hit_largest; /* # of hit largest extent node */
1714 atomic64_t read_hit_cached; /* # of hit cached extent node */
1715 atomic_t inline_xattr; /* # of inline_xattr inodes */
1716 atomic_t inline_inode; /* # of inline_data inodes */
1717 atomic_t inline_dir; /* # of inline_dentry inodes */
1718 atomic_t compr_inode; /* # of compressed inodes */
1719 atomic64_t compr_blocks; /* # of compressed blocks */
1720 atomic_t vw_cnt; /* # of volatile writes */
1721 atomic_t max_aw_cnt; /* max # of atomic writes */
1722 atomic_t max_vw_cnt; /* max # of volatile writes */
1723 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1724 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1725 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1727 spinlock_t stat_lock; /* lock for stat operations */
1729 /* to attach REQ_META|REQ_FUA flags */
1730 unsigned int data_io_flag;
1731 unsigned int node_io_flag;
1733 /* For sysfs suppport */
1734 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1735 struct completion s_kobj_unregister;
1737 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1738 struct completion s_stat_kobj_unregister;
1740 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1741 struct completion s_feature_list_kobj_unregister;
1743 /* For shrinker support */
1744 struct list_head s_list;
1745 struct mutex umount_mutex;
1746 unsigned int shrinker_run_no;
1748 /* For multi devices */
1749 int s_ndevs; /* number of devices */
1750 struct f2fs_dev_info *devs; /* for device list */
1751 unsigned int dirty_device; /* for checkpoint data flush */
1752 spinlock_t dev_lock; /* protect dirty_device */
1753 bool aligned_blksize; /* all devices has the same logical blksize */
1755 /* For write statistics */
1756 u64 sectors_written_start;
1759 /* Reference to checksum algorithm driver via cryptoapi */
1760 struct crypto_shash *s_chksum_driver;
1762 /* Precomputed FS UUID checksum for seeding other checksums */
1763 __u32 s_chksum_seed;
1765 struct workqueue_struct *post_read_wq; /* post read workqueue */
1767 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1768 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1770 /* For reclaimed segs statistics per each GC mode */
1771 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1772 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1774 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1776 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1777 int max_fragment_hole; /* max hole size for block fragmentation mode */
1779 #ifdef CONFIG_F2FS_FS_COMPRESSION
1780 struct kmem_cache *page_array_slab; /* page array entry */
1781 unsigned int page_array_slab_size; /* default page array slab size */
1783 /* For runtime compression statistics */
1784 u64 compr_written_block;
1785 u64 compr_saved_block;
1786 u32 compr_new_inode;
1788 /* For compressed block cache */
1789 struct inode *compress_inode; /* cache compressed blocks */
1790 unsigned int compress_percent; /* cache page percentage */
1791 unsigned int compress_watermark; /* cache page watermark */
1792 atomic_t compress_page_hit; /* cache hit count */
1795 #ifdef CONFIG_F2FS_IOSTAT
1796 /* For app/fs IO statistics */
1797 spinlock_t iostat_lock;
1798 unsigned long long rw_iostat[NR_IO_TYPE];
1799 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1801 unsigned long iostat_next_period;
1802 unsigned int iostat_period_ms;
1804 /* For io latency related statistics info in one iostat period */
1805 spinlock_t iostat_lat_lock;
1806 struct iostat_lat_info *iostat_io_lat;
1810 #ifdef CONFIG_F2FS_FAULT_INJECTION
1811 #define f2fs_show_injection_info(sbi, type) \
1812 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1813 KERN_INFO, sbi->sb->s_id, \
1814 f2fs_fault_name[type], \
1815 __func__, __builtin_return_address(0))
1816 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1818 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1820 if (!ffi->inject_rate)
1823 if (!IS_FAULT_SET(ffi, type))
1826 atomic_inc(&ffi->inject_ops);
1827 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1828 atomic_set(&ffi->inject_ops, 0);
1834 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1835 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1842 * Test if the mounted volume is a multi-device volume.
1843 * - For a single regular disk volume, sbi->s_ndevs is 0.
1844 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1845 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1847 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1849 return sbi->s_ndevs > 1;
1852 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1854 unsigned long now = jiffies;
1856 sbi->last_time[type] = now;
1858 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1859 if (type == REQ_TIME) {
1860 sbi->last_time[DISCARD_TIME] = now;
1861 sbi->last_time[GC_TIME] = now;
1865 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1867 unsigned long interval = sbi->interval_time[type] * HZ;
1869 return time_after(jiffies, sbi->last_time[type] + interval);
1872 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1875 unsigned long interval = sbi->interval_time[type] * HZ;
1876 unsigned int wait_ms = 0;
1879 delta = (sbi->last_time[type] + interval) - jiffies;
1881 wait_ms = jiffies_to_msecs(delta);
1889 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1890 const void *address, unsigned int length)
1893 struct shash_desc shash;
1898 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1900 desc.shash.tfm = sbi->s_chksum_driver;
1901 *(u32 *)desc.ctx = crc;
1903 err = crypto_shash_update(&desc.shash, address, length);
1906 return *(u32 *)desc.ctx;
1909 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1910 unsigned int length)
1912 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1915 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1916 void *buf, size_t buf_size)
1918 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1921 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1922 const void *address, unsigned int length)
1924 return __f2fs_crc32(sbi, crc, address, length);
1927 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1929 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1932 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1934 return sb->s_fs_info;
1937 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1939 return F2FS_SB(inode->i_sb);
1942 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1944 return F2FS_I_SB(mapping->host);
1947 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1949 return F2FS_M_SB(page_file_mapping(page));
1952 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1954 return (struct f2fs_super_block *)(sbi->raw_super);
1957 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1959 return (struct f2fs_checkpoint *)(sbi->ckpt);
1962 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1964 return (struct f2fs_node *)page_address(page);
1967 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1969 return &((struct f2fs_node *)page_address(page))->i;
1972 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1974 return (struct f2fs_nm_info *)(sbi->nm_info);
1977 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1979 return (struct f2fs_sm_info *)(sbi->sm_info);
1982 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1984 return (struct sit_info *)(SM_I(sbi)->sit_info);
1987 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1989 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1992 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1994 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1997 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1999 return sbi->meta_inode->i_mapping;
2002 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2004 return sbi->node_inode->i_mapping;
2007 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2009 return test_bit(type, &sbi->s_flag);
2012 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2014 set_bit(type, &sbi->s_flag);
2017 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2019 clear_bit(type, &sbi->s_flag);
2022 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2024 return le64_to_cpu(cp->checkpoint_ver);
2027 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2029 if (type < F2FS_MAX_QUOTAS)
2030 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2034 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2036 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2037 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2040 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2042 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2044 return ckpt_flags & f;
2047 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2049 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2052 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2054 unsigned int ckpt_flags;
2056 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2058 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2061 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2063 unsigned long flags;
2065 spin_lock_irqsave(&sbi->cp_lock, flags);
2066 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2067 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2070 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2072 unsigned int ckpt_flags;
2074 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2076 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2079 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2081 unsigned long flags;
2083 spin_lock_irqsave(&sbi->cp_lock, flags);
2084 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2085 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2088 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2090 down_read(&sbi->cp_rwsem);
2093 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2095 return down_read_trylock(&sbi->cp_rwsem);
2098 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2100 up_read(&sbi->cp_rwsem);
2103 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2105 down_write(&sbi->cp_rwsem);
2108 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2110 up_write(&sbi->cp_rwsem);
2113 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2115 int reason = CP_SYNC;
2117 if (test_opt(sbi, FASTBOOT))
2118 reason = CP_FASTBOOT;
2119 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2124 static inline bool __remain_node_summaries(int reason)
2126 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2129 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2131 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2132 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2136 * Check whether the inode has blocks or not
2138 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2140 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2142 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2145 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2147 return ofs == XATTR_NODE_OFFSET;
2150 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2151 struct inode *inode, bool cap)
2155 if (!test_opt(sbi, RESERVE_ROOT))
2157 if (IS_NOQUOTA(inode))
2159 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2161 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2162 in_group_p(F2FS_OPTION(sbi).s_resgid))
2164 if (cap && capable(CAP_SYS_RESOURCE))
2169 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2170 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2171 struct inode *inode, blkcnt_t *count)
2173 blkcnt_t diff = 0, release = 0;
2174 block_t avail_user_block_count;
2177 ret = dquot_reserve_block(inode, *count);
2181 if (time_to_inject(sbi, FAULT_BLOCK)) {
2182 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2188 * let's increase this in prior to actual block count change in order
2189 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2191 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2193 spin_lock(&sbi->stat_lock);
2194 sbi->total_valid_block_count += (block_t)(*count);
2195 avail_user_block_count = sbi->user_block_count -
2196 sbi->current_reserved_blocks;
2198 if (!__allow_reserved_blocks(sbi, inode, true))
2199 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
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;
2446 user_block_count = sbi->user_block_count;
2447 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2448 user_block_count -= sbi->unusable_block_count;
2450 if (unlikely(valid_block_count > user_block_count)) {
2451 spin_unlock(&sbi->stat_lock);
2455 valid_node_count = sbi->total_valid_node_count + 1;
2456 if (unlikely(valid_node_count > sbi->total_node_count)) {
2457 spin_unlock(&sbi->stat_lock);
2461 sbi->total_valid_node_count++;
2462 sbi->total_valid_block_count++;
2463 spin_unlock(&sbi->stat_lock);
2467 f2fs_mark_inode_dirty_sync(inode, true);
2469 f2fs_i_blocks_write(inode, 1, true, true);
2472 percpu_counter_inc(&sbi->alloc_valid_block_count);
2478 dquot_free_inode(inode);
2480 dquot_release_reservation_block(inode, 1);
2485 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2486 struct inode *inode, bool is_inode)
2488 spin_lock(&sbi->stat_lock);
2490 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2491 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2493 sbi->total_valid_node_count--;
2494 sbi->total_valid_block_count--;
2495 if (sbi->reserved_blocks &&
2496 sbi->current_reserved_blocks < sbi->reserved_blocks)
2497 sbi->current_reserved_blocks++;
2499 spin_unlock(&sbi->stat_lock);
2502 dquot_free_inode(inode);
2504 if (unlikely(inode->i_blocks == 0)) {
2505 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2507 (unsigned long long)inode->i_blocks);
2508 set_sbi_flag(sbi, SBI_NEED_FSCK);
2511 f2fs_i_blocks_write(inode, 1, false, true);
2515 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2517 return sbi->total_valid_node_count;
2520 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2522 percpu_counter_inc(&sbi->total_valid_inode_count);
2525 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2527 percpu_counter_dec(&sbi->total_valid_inode_count);
2530 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2532 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2535 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2536 pgoff_t index, bool for_write)
2540 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2542 page = find_get_page_flags(mapping, index,
2543 FGP_LOCK | FGP_ACCESSED);
2545 page = find_lock_page(mapping, index);
2549 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2550 f2fs_show_injection_info(F2FS_M_SB(mapping),
2557 return grab_cache_page(mapping, index);
2558 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2561 static inline struct page *f2fs_pagecache_get_page(
2562 struct address_space *mapping, pgoff_t index,
2563 int fgp_flags, gfp_t gfp_mask)
2565 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2566 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2570 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2573 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2575 char *src_kaddr = kmap(src);
2576 char *dst_kaddr = kmap(dst);
2578 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2583 static inline void f2fs_put_page(struct page *page, int unlock)
2589 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2595 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2598 f2fs_put_page(dn->node_page, 1);
2599 if (dn->inode_page && dn->node_page != dn->inode_page)
2600 f2fs_put_page(dn->inode_page, 0);
2601 dn->node_page = NULL;
2602 dn->inode_page = NULL;
2605 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2608 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2611 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2616 entry = kmem_cache_alloc(cachep, flags);
2618 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2622 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2623 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2626 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2628 if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
2629 f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
2633 return kmem_cache_alloc(cachep, flags);
2636 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2638 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2639 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2640 get_pages(sbi, F2FS_WB_CP_DATA) ||
2641 get_pages(sbi, F2FS_DIO_READ) ||
2642 get_pages(sbi, F2FS_DIO_WRITE))
2645 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2646 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2649 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2650 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2655 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2657 if (sbi->gc_mode == GC_URGENT_HIGH)
2660 if (is_inflight_io(sbi, type))
2663 if (sbi->gc_mode == GC_URGENT_LOW &&
2664 (type == DISCARD_TIME || type == GC_TIME))
2667 return f2fs_time_over(sbi, type);
2670 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2671 unsigned long index, void *item)
2673 while (radix_tree_insert(root, index, item))
2677 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2679 static inline bool IS_INODE(struct page *page)
2681 struct f2fs_node *p = F2FS_NODE(page);
2683 return RAW_IS_INODE(p);
2686 static inline int offset_in_addr(struct f2fs_inode *i)
2688 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2689 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2692 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2694 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2697 static inline int f2fs_has_extra_attr(struct inode *inode);
2698 static inline block_t data_blkaddr(struct inode *inode,
2699 struct page *node_page, unsigned int offset)
2701 struct f2fs_node *raw_node;
2704 bool is_inode = IS_INODE(node_page);
2706 raw_node = F2FS_NODE(node_page);
2710 /* from GC path only */
2711 base = offset_in_addr(&raw_node->i);
2712 else if (f2fs_has_extra_attr(inode))
2713 base = get_extra_isize(inode);
2716 addr_array = blkaddr_in_node(raw_node);
2717 return le32_to_cpu(addr_array[base + offset]);
2720 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2722 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2725 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2730 mask = 1 << (7 - (nr & 0x07));
2731 return mask & *addr;
2734 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2739 mask = 1 << (7 - (nr & 0x07));
2743 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2748 mask = 1 << (7 - (nr & 0x07));
2752 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2758 mask = 1 << (7 - (nr & 0x07));
2764 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2770 mask = 1 << (7 - (nr & 0x07));
2776 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2781 mask = 1 << (7 - (nr & 0x07));
2786 * On-disk inode flags (f2fs_inode::i_flags)
2788 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2789 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2790 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2791 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2792 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2793 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2794 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2795 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2796 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2797 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2798 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2800 /* Flags that should be inherited by new inodes from their parent. */
2801 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2802 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2803 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2805 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2806 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2809 /* Flags that are appropriate for non-directories/regular files. */
2810 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2812 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2816 else if (S_ISREG(mode))
2817 return flags & F2FS_REG_FLMASK;
2819 return flags & F2FS_OTHER_FLMASK;
2822 static inline void __mark_inode_dirty_flag(struct inode *inode,
2826 case FI_INLINE_XATTR:
2827 case FI_INLINE_DATA:
2828 case FI_INLINE_DENTRY:
2834 case FI_INLINE_DOTS:
2836 case FI_COMPRESS_RELEASED:
2837 f2fs_mark_inode_dirty_sync(inode, true);
2841 static inline void set_inode_flag(struct inode *inode, int flag)
2843 set_bit(flag, F2FS_I(inode)->flags);
2844 __mark_inode_dirty_flag(inode, flag, true);
2847 static inline int is_inode_flag_set(struct inode *inode, int flag)
2849 return test_bit(flag, F2FS_I(inode)->flags);
2852 static inline void clear_inode_flag(struct inode *inode, int flag)
2854 clear_bit(flag, F2FS_I(inode)->flags);
2855 __mark_inode_dirty_flag(inode, flag, false);
2858 static inline bool f2fs_verity_in_progress(struct inode *inode)
2860 return IS_ENABLED(CONFIG_FS_VERITY) &&
2861 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2864 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2866 F2FS_I(inode)->i_acl_mode = mode;
2867 set_inode_flag(inode, FI_ACL_MODE);
2868 f2fs_mark_inode_dirty_sync(inode, false);
2871 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2877 f2fs_mark_inode_dirty_sync(inode, true);
2880 static inline void f2fs_i_blocks_write(struct inode *inode,
2881 block_t diff, bool add, bool claim)
2883 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2884 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2886 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2889 dquot_claim_block(inode, diff);
2891 dquot_alloc_block_nofail(inode, diff);
2893 dquot_free_block(inode, diff);
2896 f2fs_mark_inode_dirty_sync(inode, true);
2897 if (clean || recover)
2898 set_inode_flag(inode, FI_AUTO_RECOVER);
2901 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2903 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2904 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2906 if (i_size_read(inode) == i_size)
2909 i_size_write(inode, i_size);
2910 f2fs_mark_inode_dirty_sync(inode, true);
2911 if (clean || recover)
2912 set_inode_flag(inode, FI_AUTO_RECOVER);
2915 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2917 F2FS_I(inode)->i_current_depth = depth;
2918 f2fs_mark_inode_dirty_sync(inode, true);
2921 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2924 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2925 f2fs_mark_inode_dirty_sync(inode, true);
2928 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2930 F2FS_I(inode)->i_xattr_nid = xnid;
2931 f2fs_mark_inode_dirty_sync(inode, true);
2934 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2936 F2FS_I(inode)->i_pino = pino;
2937 f2fs_mark_inode_dirty_sync(inode, true);
2940 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2942 struct f2fs_inode_info *fi = F2FS_I(inode);
2944 if (ri->i_inline & F2FS_INLINE_XATTR)
2945 set_bit(FI_INLINE_XATTR, fi->flags);
2946 if (ri->i_inline & F2FS_INLINE_DATA)
2947 set_bit(FI_INLINE_DATA, fi->flags);
2948 if (ri->i_inline & F2FS_INLINE_DENTRY)
2949 set_bit(FI_INLINE_DENTRY, fi->flags);
2950 if (ri->i_inline & F2FS_DATA_EXIST)
2951 set_bit(FI_DATA_EXIST, fi->flags);
2952 if (ri->i_inline & F2FS_INLINE_DOTS)
2953 set_bit(FI_INLINE_DOTS, fi->flags);
2954 if (ri->i_inline & F2FS_EXTRA_ATTR)
2955 set_bit(FI_EXTRA_ATTR, fi->flags);
2956 if (ri->i_inline & F2FS_PIN_FILE)
2957 set_bit(FI_PIN_FILE, fi->flags);
2958 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
2959 set_bit(FI_COMPRESS_RELEASED, fi->flags);
2962 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2966 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2967 ri->i_inline |= F2FS_INLINE_XATTR;
2968 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2969 ri->i_inline |= F2FS_INLINE_DATA;
2970 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2971 ri->i_inline |= F2FS_INLINE_DENTRY;
2972 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2973 ri->i_inline |= F2FS_DATA_EXIST;
2974 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2975 ri->i_inline |= F2FS_INLINE_DOTS;
2976 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2977 ri->i_inline |= F2FS_EXTRA_ATTR;
2978 if (is_inode_flag_set(inode, FI_PIN_FILE))
2979 ri->i_inline |= F2FS_PIN_FILE;
2980 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
2981 ri->i_inline |= F2FS_COMPRESS_RELEASED;
2984 static inline int f2fs_has_extra_attr(struct inode *inode)
2986 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2989 static inline int f2fs_has_inline_xattr(struct inode *inode)
2991 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2994 static inline int f2fs_compressed_file(struct inode *inode)
2996 return S_ISREG(inode->i_mode) &&
2997 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3000 static inline bool f2fs_need_compress_data(struct inode *inode)
3002 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3004 if (!f2fs_compressed_file(inode))
3007 if (compress_mode == COMPR_MODE_FS)
3009 else if (compress_mode == COMPR_MODE_USER &&
3010 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3016 static inline unsigned int addrs_per_inode(struct inode *inode)
3018 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3019 get_inline_xattr_addrs(inode);
3021 if (!f2fs_compressed_file(inode))
3023 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3026 static inline unsigned int addrs_per_block(struct inode *inode)
3028 if (!f2fs_compressed_file(inode))
3029 return DEF_ADDRS_PER_BLOCK;
3030 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3033 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3035 struct f2fs_inode *ri = F2FS_INODE(page);
3037 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3038 get_inline_xattr_addrs(inode)]);
3041 static inline int inline_xattr_size(struct inode *inode)
3043 if (f2fs_has_inline_xattr(inode))
3044 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3048 static inline int f2fs_has_inline_data(struct inode *inode)
3050 return is_inode_flag_set(inode, FI_INLINE_DATA);
3053 static inline int f2fs_exist_data(struct inode *inode)
3055 return is_inode_flag_set(inode, FI_DATA_EXIST);
3058 static inline int f2fs_has_inline_dots(struct inode *inode)
3060 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3063 static inline int f2fs_is_mmap_file(struct inode *inode)
3065 return is_inode_flag_set(inode, FI_MMAP_FILE);
3068 static inline bool f2fs_is_pinned_file(struct inode *inode)
3070 return is_inode_flag_set(inode, FI_PIN_FILE);
3073 static inline bool f2fs_is_atomic_file(struct inode *inode)
3075 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3078 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
3080 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
3083 static inline bool f2fs_is_volatile_file(struct inode *inode)
3085 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
3088 static inline bool f2fs_is_first_block_written(struct inode *inode)
3090 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3093 static inline bool f2fs_is_drop_cache(struct inode *inode)
3095 return is_inode_flag_set(inode, FI_DROP_CACHE);
3098 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3100 struct f2fs_inode *ri = F2FS_INODE(page);
3101 int extra_size = get_extra_isize(inode);
3103 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3106 static inline int f2fs_has_inline_dentry(struct inode *inode)
3108 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3111 static inline int is_file(struct inode *inode, int type)
3113 return F2FS_I(inode)->i_advise & type;
3116 static inline void set_file(struct inode *inode, int type)
3118 F2FS_I(inode)->i_advise |= type;
3119 f2fs_mark_inode_dirty_sync(inode, true);
3122 static inline void clear_file(struct inode *inode, int type)
3124 F2FS_I(inode)->i_advise &= ~type;
3125 f2fs_mark_inode_dirty_sync(inode, true);
3128 static inline bool f2fs_is_time_consistent(struct inode *inode)
3130 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3132 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3134 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3136 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3137 &F2FS_I(inode)->i_crtime))
3142 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3147 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3149 spin_lock(&sbi->inode_lock[DIRTY_META]);
3150 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3151 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3154 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3155 file_keep_isize(inode) ||
3156 i_size_read(inode) & ~PAGE_MASK)
3159 if (!f2fs_is_time_consistent(inode))
3162 spin_lock(&F2FS_I(inode)->i_size_lock);
3163 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3164 spin_unlock(&F2FS_I(inode)->i_size_lock);
3169 static inline bool f2fs_readonly(struct super_block *sb)
3171 return sb_rdonly(sb);
3174 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3176 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3179 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3181 if (len == 1 && name[0] == '.')
3184 if (len == 2 && name[0] == '.' && name[1] == '.')
3190 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3191 size_t size, gfp_t flags)
3193 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3194 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3198 return kmalloc(size, flags);
3201 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3202 size_t size, gfp_t flags)
3204 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3207 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3208 size_t size, gfp_t flags)
3210 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3211 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3215 return kvmalloc(size, flags);
3218 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3219 size_t size, gfp_t flags)
3221 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3224 static inline int get_extra_isize(struct inode *inode)
3226 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3229 static inline int get_inline_xattr_addrs(struct inode *inode)
3231 return F2FS_I(inode)->i_inline_xattr_size;
3234 #define f2fs_get_inode_mode(i) \
3235 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3236 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3238 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3239 (offsetof(struct f2fs_inode, i_extra_end) - \
3240 offsetof(struct f2fs_inode, i_extra_isize)) \
3242 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3243 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3244 ((offsetof(typeof(*(f2fs_inode)), field) + \
3245 sizeof((f2fs_inode)->field)) \
3246 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3248 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3250 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3252 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3253 block_t blkaddr, int type);
3254 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3255 block_t blkaddr, int type)
3257 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3258 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3260 f2fs_bug_on(sbi, 1);
3264 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3266 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3267 blkaddr == COMPRESS_ADDR)
3275 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3276 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3277 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3278 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3279 int f2fs_truncate(struct inode *inode);
3280 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3281 struct kstat *stat, u32 request_mask, unsigned int flags);
3282 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3283 struct iattr *attr);
3284 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3285 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3286 int f2fs_precache_extents(struct inode *inode);
3287 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3288 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3289 struct dentry *dentry, struct fileattr *fa);
3290 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3291 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3292 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3293 int f2fs_pin_file_control(struct inode *inode, bool inc);
3298 void f2fs_set_inode_flags(struct inode *inode);
3299 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3300 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3301 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3302 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3303 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3304 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3305 void f2fs_update_inode_page(struct inode *inode);
3306 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3307 void f2fs_evict_inode(struct inode *inode);
3308 void f2fs_handle_failed_inode(struct inode *inode);
3313 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3314 bool hot, bool set);
3315 struct dentry *f2fs_get_parent(struct dentry *child);
3320 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3321 int f2fs_init_casefolded_name(const struct inode *dir,
3322 struct f2fs_filename *fname);
3323 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3324 int lookup, struct f2fs_filename *fname);
3325 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3326 struct f2fs_filename *fname);
3327 void f2fs_free_filename(struct f2fs_filename *fname);
3328 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3329 const struct f2fs_filename *fname, int *max_slots);
3330 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3331 unsigned int start_pos, struct fscrypt_str *fstr);
3332 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3333 struct f2fs_dentry_ptr *d);
3334 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3335 const struct f2fs_filename *fname, struct page *dpage);
3336 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3337 unsigned int current_depth);
3338 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3339 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3340 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3341 const struct f2fs_filename *fname,
3342 struct page **res_page);
3343 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3344 const struct qstr *child, struct page **res_page);
3345 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3346 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3347 struct page **page);
3348 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3349 struct page *page, struct inode *inode);
3350 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3351 const struct f2fs_filename *fname);
3352 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3353 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3354 unsigned int bit_pos);
3355 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3356 struct inode *inode, nid_t ino, umode_t mode);
3357 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3358 struct inode *inode, nid_t ino, umode_t mode);
3359 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3360 struct inode *inode, nid_t ino, umode_t mode);
3361 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3362 struct inode *dir, struct inode *inode);
3363 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3364 bool f2fs_empty_dir(struct inode *dir);
3366 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3368 if (fscrypt_is_nokey_name(dentry))
3370 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3371 inode, inode->i_ino, inode->i_mode);
3377 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3378 void f2fs_inode_synced(struct inode *inode);
3379 int f2fs_dquot_initialize(struct inode *inode);
3380 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3381 int f2fs_quota_sync(struct super_block *sb, int type);
3382 loff_t max_file_blocks(struct inode *inode);
3383 void f2fs_quota_off_umount(struct super_block *sb);
3384 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3385 int f2fs_sync_fs(struct super_block *sb, int sync);
3386 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3391 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3398 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3399 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3400 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3401 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3402 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3403 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3404 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3405 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3406 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3407 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3408 struct node_info *ni);
3409 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3410 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3411 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3412 int f2fs_truncate_xattr_node(struct inode *inode);
3413 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3414 unsigned int seq_id);
3415 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3416 int f2fs_remove_inode_page(struct inode *inode);
3417 struct page *f2fs_new_inode_page(struct inode *inode);
3418 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3419 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3420 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3421 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3422 int f2fs_move_node_page(struct page *node_page, int gc_type);
3423 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3424 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3425 struct writeback_control *wbc, bool atomic,
3426 unsigned int *seq_id);
3427 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3428 struct writeback_control *wbc,
3429 bool do_balance, enum iostat_type io_type);
3430 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3431 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3432 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3433 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3434 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3435 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3436 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3437 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3438 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3439 unsigned int segno, struct f2fs_summary_block *sum);
3440 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3441 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3442 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3443 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3444 int __init f2fs_create_node_manager_caches(void);
3445 void f2fs_destroy_node_manager_caches(void);
3450 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3451 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3452 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3453 void f2fs_drop_inmem_pages(struct inode *inode);
3454 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3455 int f2fs_commit_inmem_pages(struct inode *inode);
3456 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3457 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3458 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3459 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3460 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3461 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3462 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3463 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3464 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3465 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3466 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3467 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3468 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3469 struct cp_control *cpc);
3470 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3471 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3472 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3473 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3474 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3475 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3476 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3477 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3478 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3479 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3480 unsigned int *newseg, bool new_sec, int dir);
3481 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3482 unsigned int start, unsigned int end);
3483 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3484 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3485 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3486 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3487 struct cp_control *cpc);
3488 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3489 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3491 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3492 enum iostat_type io_type);
3493 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3494 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3495 struct f2fs_io_info *fio);
3496 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3497 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3498 block_t old_blkaddr, block_t new_blkaddr,
3499 bool recover_curseg, bool recover_newaddr,
3501 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3502 block_t old_addr, block_t new_addr,
3503 unsigned char version, bool recover_curseg,
3504 bool recover_newaddr);
3505 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3506 block_t old_blkaddr, block_t *new_blkaddr,
3507 struct f2fs_summary *sum, int type,
3508 struct f2fs_io_info *fio);
3509 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3510 block_t blkaddr, unsigned int blkcnt);
3511 void f2fs_wait_on_page_writeback(struct page *page,
3512 enum page_type type, bool ordered, bool locked);
3513 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3514 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3516 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3517 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3518 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3519 unsigned int val, int alloc);
3520 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3521 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3522 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3523 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3524 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3525 int __init f2fs_create_segment_manager_caches(void);
3526 void f2fs_destroy_segment_manager_caches(void);
3527 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3528 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3529 enum page_type type, enum temp_type temp);
3530 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3531 unsigned int segno);
3532 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3533 unsigned int segno);
3535 #define DEF_FRAGMENT_SIZE 4
3536 #define MIN_FRAGMENT_SIZE 1
3537 #define MAX_FRAGMENT_SIZE 512
3539 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3541 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3542 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3548 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
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);
3578 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3579 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3580 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3581 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3582 int __init f2fs_create_checkpoint_caches(void);
3583 void f2fs_destroy_checkpoint_caches(void);
3584 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3585 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3586 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3587 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3592 int __init f2fs_init_bioset(void);
3593 void f2fs_destroy_bioset(void);
3594 int f2fs_init_bio_entry_cache(void);
3595 void f2fs_destroy_bio_entry_cache(void);
3596 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3597 struct bio *bio, enum page_type type);
3598 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3599 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3600 struct inode *inode, struct page *page,
3601 nid_t ino, enum page_type type);
3602 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3603 struct bio **bio, struct page *page);
3604 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3605 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3606 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3607 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3608 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3609 block_t blk_addr, struct bio *bio);
3610 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3611 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3612 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3613 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3614 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3615 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3616 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3617 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3618 int op_flags, bool for_write);
3619 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3620 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3622 struct page *f2fs_get_new_data_page(struct inode *inode,
3623 struct page *ipage, pgoff_t index, bool new_i_size);
3624 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3625 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3626 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3627 int create, int flag);
3628 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3629 u64 start, u64 len);
3630 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3631 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3632 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3633 int f2fs_write_single_data_page(struct page *page, int *submitted,
3634 struct bio **bio, sector_t *last_block,
3635 struct writeback_control *wbc,
3636 enum iostat_type io_type,
3637 int compr_blocks, bool allow_balance);
3638 void f2fs_write_failed(struct inode *inode, loff_t to);
3639 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3640 unsigned int length);
3641 int f2fs_release_page(struct page *page, gfp_t wait);
3642 #ifdef CONFIG_MIGRATION
3643 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3644 struct page *page, enum migrate_mode mode);
3646 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3647 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3648 int f2fs_init_post_read_processing(void);
3649 void f2fs_destroy_post_read_processing(void);
3650 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3651 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3652 extern const struct iomap_ops f2fs_iomap_ops;
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 f2fs_sb_info *sbi, __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_may_inline_dentry(struct inode *inode);
3927 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3928 void f2fs_truncate_inline_inode(struct inode *inode,
3929 struct page *ipage, u64 from);
3930 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3931 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3932 int f2fs_convert_inline_inode(struct inode *inode);
3933 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
3934 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3935 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3936 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3937 const struct f2fs_filename *fname,
3938 struct page **res_page);
3939 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3940 struct page *ipage);
3941 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
3942 struct inode *inode, nid_t ino, umode_t mode);
3943 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3944 struct page *page, struct inode *dir,
3945 struct inode *inode);
3946 bool f2fs_empty_inline_dir(struct inode *dir);
3947 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3948 struct fscrypt_str *fstr);
3949 int f2fs_inline_data_fiemap(struct inode *inode,
3950 struct fiemap_extent_info *fieinfo,
3951 __u64 start, __u64 len);
3956 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3957 struct shrink_control *sc);
3958 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3959 struct shrink_control *sc);
3960 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3961 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3966 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3967 struct rb_entry *cached_re, unsigned int ofs);
3968 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
3969 struct rb_root_cached *root,
3970 struct rb_node **parent,
3971 unsigned long long key, bool *left_most);
3972 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3973 struct rb_root_cached *root,
3974 struct rb_node **parent,
3975 unsigned int ofs, bool *leftmost);
3976 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
3977 struct rb_entry *cached_re, unsigned int ofs,
3978 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3979 struct rb_node ***insert_p, struct rb_node **insert_parent,
3980 bool force, bool *leftmost);
3981 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3982 struct rb_root_cached *root, bool check_key);
3983 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3984 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
3985 void f2fs_drop_extent_tree(struct inode *inode);
3986 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3987 void f2fs_destroy_extent_tree(struct inode *inode);
3988 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3989 struct extent_info *ei);
3990 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3991 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3992 pgoff_t fofs, block_t blkaddr, unsigned int len);
3993 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3994 int __init f2fs_create_extent_cache(void);
3995 void f2fs_destroy_extent_cache(void);
4000 #define MIN_RA_MUL 2
4001 #define MAX_RA_MUL 256
4003 int __init f2fs_init_sysfs(void);
4004 void f2fs_exit_sysfs(void);
4005 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4006 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4009 extern const struct fsverity_operations f2fs_verityops;
4014 static inline bool f2fs_encrypted_file(struct inode *inode)
4016 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4019 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4021 #ifdef CONFIG_FS_ENCRYPTION
4022 file_set_encrypt(inode);
4023 f2fs_set_inode_flags(inode);
4028 * Returns true if the reads of the inode's data need to undergo some
4029 * postprocessing step, like decryption or authenticity verification.
4031 static inline bool f2fs_post_read_required(struct inode *inode)
4033 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4034 f2fs_compressed_file(inode);
4040 #ifdef CONFIG_F2FS_FS_COMPRESSION
4041 bool f2fs_is_compressed_page(struct page *page);
4042 struct page *f2fs_compress_control_page(struct page *page);
4043 int f2fs_prepare_compress_overwrite(struct inode *inode,
4044 struct page **pagep, pgoff_t index, void **fsdata);
4045 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4046 pgoff_t index, unsigned copied);
4047 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4048 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4049 bool f2fs_is_compress_backend_ready(struct inode *inode);
4050 int f2fs_init_compress_mempool(void);
4051 void f2fs_destroy_compress_mempool(void);
4052 void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
4053 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4055 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4056 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4057 bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
4058 int index, int nr_pages);
4059 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4060 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4061 int f2fs_write_multi_pages(struct compress_ctx *cc,
4063 struct writeback_control *wbc,
4064 enum iostat_type io_type);
4065 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4066 void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4067 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4068 unsigned int c_len);
4069 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4070 unsigned nr_pages, sector_t *last_block_in_bio,
4071 bool is_readahead, bool for_write);
4072 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4073 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
4074 void f2fs_put_page_dic(struct page *page);
4075 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4076 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4077 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4078 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4079 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4080 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4081 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4082 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4083 int __init f2fs_init_compress_cache(void);
4084 void f2fs_destroy_compress_cache(void);
4085 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4086 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4087 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4088 nid_t ino, block_t blkaddr);
4089 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4091 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4092 #define inc_compr_inode_stat(inode) \
4094 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4095 sbi->compr_new_inode++; \
4097 #define add_compr_block_stat(inode, blocks) \
4099 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4100 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4101 sbi->compr_written_block += blocks; \
4102 sbi->compr_saved_block += diff; \
4105 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4106 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4108 if (!f2fs_compressed_file(inode))
4110 /* not support compression */
4113 static inline struct page *f2fs_compress_control_page(struct page *page)
4116 return ERR_PTR(-EINVAL);
4118 static inline int f2fs_init_compress_mempool(void) { return 0; }
4119 static inline void f2fs_destroy_compress_mempool(void) { }
4120 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
4121 static inline void f2fs_end_read_compressed_page(struct page *page,
4122 bool failed, block_t blkaddr)
4126 static inline void f2fs_put_page_dic(struct page *page)
4130 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
4131 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
4132 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4133 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4134 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4135 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4136 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4137 static inline void f2fs_destroy_compress_cache(void) { }
4138 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4139 block_t blkaddr) { }
4140 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4141 struct page *page, nid_t ino, block_t blkaddr) { }
4142 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4143 struct page *page, block_t blkaddr) { return false; }
4144 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4146 #define inc_compr_inode_stat(inode) do { } while (0)
4147 static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4148 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4149 unsigned int c_len) { }
4152 static inline void set_compress_context(struct inode *inode)
4154 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4156 F2FS_I(inode)->i_compress_algorithm =
4157 F2FS_OPTION(sbi).compress_algorithm;
4158 F2FS_I(inode)->i_log_cluster_size =
4159 F2FS_OPTION(sbi).compress_log_size;
4160 F2FS_I(inode)->i_compress_flag =
4161 F2FS_OPTION(sbi).compress_chksum ?
4162 1 << COMPRESS_CHKSUM : 0;
4163 F2FS_I(inode)->i_cluster_size =
4164 1 << F2FS_I(inode)->i_log_cluster_size;
4165 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4166 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4167 F2FS_OPTION(sbi).compress_level)
4168 F2FS_I(inode)->i_compress_flag |=
4169 F2FS_OPTION(sbi).compress_level <<
4170 COMPRESS_LEVEL_OFFSET;
4171 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4172 set_inode_flag(inode, FI_COMPRESSED_FILE);
4173 stat_inc_compr_inode(inode);
4174 inc_compr_inode_stat(inode);
4175 f2fs_mark_inode_dirty_sync(inode, true);
4178 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4180 struct f2fs_inode_info *fi = F2FS_I(inode);
4182 if (!f2fs_compressed_file(inode))
4184 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
4187 fi->i_flags &= ~F2FS_COMPR_FL;
4188 stat_dec_compr_inode(inode);
4189 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4190 f2fs_mark_inode_dirty_sync(inode, true);
4194 #define F2FS_FEATURE_FUNCS(name, flagname) \
4195 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4197 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4200 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4201 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4202 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4203 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4204 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4205 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4206 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4207 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4208 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4209 F2FS_FEATURE_FUNCS(verity, VERITY);
4210 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4211 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4212 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4213 F2FS_FEATURE_FUNCS(readonly, RO);
4215 static inline bool f2fs_may_extent_tree(struct inode *inode)
4217 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4219 if (!test_opt(sbi, EXTENT_CACHE) ||
4220 is_inode_flag_set(inode, FI_NO_EXTENT) ||
4221 (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
4222 !f2fs_sb_has_readonly(sbi)))
4226 * for recovered files during mount do not create extents
4227 * if shrinker is not registered.
4229 if (list_empty(&sbi->s_list))
4232 return S_ISREG(inode->i_mode);
4235 #ifdef CONFIG_BLK_DEV_ZONED
4236 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4239 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4241 return test_bit(zno, FDEV(devi).blkz_seq);
4245 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4247 return f2fs_sb_has_blkzoned(sbi);
4250 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4252 return blk_queue_discard(bdev_get_queue(bdev)) ||
4253 bdev_is_zoned(bdev);
4256 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4260 if (!f2fs_is_multi_device(sbi))
4261 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4263 for (i = 0; i < sbi->s_ndevs; i++)
4264 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4269 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4271 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4272 f2fs_hw_should_discard(sbi);
4275 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4279 if (!f2fs_is_multi_device(sbi))
4280 return bdev_read_only(sbi->sb->s_bdev);
4282 for (i = 0; i < sbi->s_ndevs; i++)
4283 if (bdev_read_only(FDEV(i).bdev))
4288 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4290 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4293 static inline bool f2fs_may_compress(struct inode *inode)
4295 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4296 f2fs_is_atomic_file(inode) ||
4297 f2fs_is_volatile_file(inode))
4299 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4302 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4303 u64 blocks, bool add)
4305 int diff = F2FS_I(inode)->i_cluster_size - blocks;
4306 struct f2fs_inode_info *fi = F2FS_I(inode);
4308 /* don't update i_compr_blocks if saved blocks were released */
4309 if (!add && !atomic_read(&fi->i_compr_blocks))
4313 atomic_add(diff, &fi->i_compr_blocks);
4314 stat_add_compr_blocks(inode, diff);
4316 atomic_sub(diff, &fi->i_compr_blocks);
4317 stat_sub_compr_blocks(inode, diff);
4319 f2fs_mark_inode_dirty_sync(inode, true);
4322 static inline int block_unaligned_IO(struct inode *inode,
4323 struct kiocb *iocb, struct iov_iter *iter)
4325 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4326 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4327 loff_t offset = iocb->ki_pos;
4328 unsigned long align = offset | iov_iter_alignment(iter);
4330 return align & blocksize_mask;
4333 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4336 if (!f2fs_is_multi_device(sbi))
4338 if (flag != F2FS_GET_BLOCK_DIO)
4340 return sbi->aligned_blksize;
4343 static inline bool f2fs_force_buffered_io(struct inode *inode,
4344 struct kiocb *iocb, struct iov_iter *iter)
4346 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4347 int rw = iov_iter_rw(iter);
4349 if (f2fs_post_read_required(inode))
4352 /* disallow direct IO if any of devices has unaligned blksize */
4353 if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
4356 * for blkzoned device, fallback direct IO to buffered IO, so
4357 * all IOs can be serialized by log-structured write.
4359 if (f2fs_sb_has_blkzoned(sbi))
4361 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4362 if (block_unaligned_IO(inode, iocb, iter))
4364 if (F2FS_IO_ALIGNED(sbi))
4367 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
4373 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4375 return fsverity_active(inode) &&
4376 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4379 #ifdef CONFIG_F2FS_FAULT_INJECTION
4380 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4383 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4386 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4389 if (f2fs_sb_has_quota_ino(sbi))
4391 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4392 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4393 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4399 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4401 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4404 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4405 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4407 #endif /* _LINUX_F2FS_H */