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/sched/mm.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #include <linux/quotaops.h>
26 #include <linux/part_stat.h>
27 #include <crypto/hash.h>
29 #include <linux/fscrypt.h>
30 #include <linux/fsverity.h>
34 #ifdef CONFIG_F2FS_CHECK_FS
35 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
37 #define f2fs_bug_on(sbi, condition) \
39 if (WARN_ON(condition)) \
40 set_sbi_flag(sbi, SBI_NEED_FSCK); \
49 FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
66 #ifdef CONFIG_F2FS_FAULT_INJECTION
67 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
69 struct f2fs_fault_info {
71 unsigned int inject_rate;
72 unsigned int inject_type;
75 extern const char *f2fs_fault_name[FAULT_MAX];
76 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
82 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
83 #define F2FS_MOUNT_DISCARD 0x00000004
84 #define F2FS_MOUNT_NOHEAP 0x00000008
85 #define F2FS_MOUNT_XATTR_USER 0x00000010
86 #define F2FS_MOUNT_POSIX_ACL 0x00000020
87 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
88 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
89 #define F2FS_MOUNT_INLINE_DATA 0x00000100
90 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
91 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
92 #define F2FS_MOUNT_NOBARRIER 0x00000800
93 #define F2FS_MOUNT_FASTBOOT 0x00001000
94 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
95 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
96 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
97 #define F2FS_MOUNT_USRQUOTA 0x00080000
98 #define F2FS_MOUNT_GRPQUOTA 0x00100000
99 #define F2FS_MOUNT_PRJQUOTA 0x00200000
100 #define F2FS_MOUNT_QUOTA 0x00400000
101 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
102 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
103 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
104 #define F2FS_MOUNT_NORECOVERY 0x04000000
105 #define F2FS_MOUNT_ATGC 0x08000000
106 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
107 #define F2FS_MOUNT_GC_MERGE 0x20000000
108 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
110 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
111 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
112 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
113 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
115 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
116 typecheck(unsigned long long, b) && \
117 ((long long)((a) - (b)) > 0))
119 typedef u32 block_t; /*
120 * should not change u32, since it is the on-disk block
121 * address format, __le32.
125 #define COMPRESS_EXT_NUM 16
128 * An implementation of an rwsem that is explicitly unfair to readers. This
129 * prevents priority inversion when a low-priority reader acquires the read lock
130 * while sleeping on the write lock but the write lock is needed by
131 * higher-priority clients.
135 struct rw_semaphore internal_rwsem;
136 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
137 wait_queue_head_t read_waiters;
141 struct f2fs_mount_info {
143 int write_io_size_bits; /* Write IO size bits */
144 block_t root_reserved_blocks; /* root reserved blocks */
145 kuid_t s_resuid; /* reserved blocks for uid */
146 kgid_t s_resgid; /* reserved blocks for gid */
147 int active_logs; /* # of active logs */
148 int inline_xattr_size; /* inline xattr size */
149 #ifdef CONFIG_F2FS_FAULT_INJECTION
150 struct f2fs_fault_info fault_info; /* For fault injection */
153 /* Names of quota files with journalled quota */
154 char *s_qf_names[MAXQUOTAS];
155 int s_jquota_fmt; /* Format of quota to use */
157 /* For which write hints are passed down to block layer */
158 int alloc_mode; /* segment allocation policy */
159 int fsync_mode; /* fsync policy */
160 int fs_mode; /* fs mode: LFS or ADAPTIVE */
161 int bggc_mode; /* bggc mode: off, on or sync */
162 int memory_mode; /* memory mode */
164 * discard command's offset/size should
165 * be aligned to this unit: block,
168 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
169 block_t unusable_cap_perc; /* percentage for cap */
170 block_t unusable_cap; /* Amount of space allowed to be
171 * unusable when disabling checkpoint
174 /* For compression */
175 unsigned char compress_algorithm; /* algorithm type */
176 unsigned char compress_log_size; /* cluster log size */
177 unsigned char compress_level; /* compress level */
178 bool compress_chksum; /* compressed data chksum */
179 unsigned char compress_ext_cnt; /* extension count */
180 unsigned char nocompress_ext_cnt; /* nocompress extension count */
181 int compress_mode; /* compression mode */
182 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
183 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
186 #define F2FS_FEATURE_ENCRYPT 0x0001
187 #define F2FS_FEATURE_BLKZONED 0x0002
188 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
189 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
190 #define F2FS_FEATURE_PRJQUOTA 0x0010
191 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
192 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
193 #define F2FS_FEATURE_QUOTA_INO 0x0080
194 #define F2FS_FEATURE_INODE_CRTIME 0x0100
195 #define F2FS_FEATURE_LOST_FOUND 0x0200
196 #define F2FS_FEATURE_VERITY 0x0400
197 #define F2FS_FEATURE_SB_CHKSUM 0x0800
198 #define F2FS_FEATURE_CASEFOLD 0x1000
199 #define F2FS_FEATURE_COMPRESSION 0x2000
200 #define F2FS_FEATURE_RO 0x4000
202 #define __F2FS_HAS_FEATURE(raw_super, mask) \
203 ((raw_super->feature & cpu_to_le32(mask)) != 0)
204 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
205 #define F2FS_SET_FEATURE(sbi, mask) \
206 (sbi->raw_super->feature |= cpu_to_le32(mask))
207 #define F2FS_CLEAR_FEATURE(sbi, mask) \
208 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
211 * Default values for user and/or group using reserved blocks
213 #define F2FS_DEF_RESUID 0
214 #define F2FS_DEF_RESGID 0
217 * For checkpoint manager
224 #define CP_UMOUNT 0x00000001
225 #define CP_FASTBOOT 0x00000002
226 #define CP_SYNC 0x00000004
227 #define CP_RECOVERY 0x00000008
228 #define CP_DISCARD 0x00000010
229 #define CP_TRIMMED 0x00000020
230 #define CP_PAUSE 0x00000040
231 #define CP_RESIZE 0x00000080
233 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
234 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
235 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
236 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
237 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
238 #define DEF_CP_INTERVAL 60 /* 60 secs */
239 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
240 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
241 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
242 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
252 * indicate meta/data type
261 DATA_GENERIC, /* check range only */
262 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
263 DATA_GENERIC_ENHANCE_READ, /*
264 * strong check on range and segment
265 * bitmap but no warning due to race
266 * condition of read on truncated area
272 /* for the list of ino */
274 ORPHAN_INO, /* for orphan ino list */
275 APPEND_INO, /* for append ino list */
276 UPDATE_INO, /* for update ino list */
277 TRANS_DIR_INO, /* for trasactions dir ino list */
278 FLUSH_INO, /* for multiple device flushing */
279 MAX_INO_ENTRY, /* max. list */
283 struct list_head list; /* list head */
284 nid_t ino; /* inode number */
285 unsigned int dirty_device; /* dirty device bitmap */
288 /* for the list of inodes to be GCed */
290 struct list_head list; /* list head */
291 struct inode *inode; /* vfs inode pointer */
294 struct fsync_node_entry {
295 struct list_head list; /* list head */
296 struct page *page; /* warm node page pointer */
297 unsigned int seq_id; /* sequence id */
301 struct completion wait; /* completion for checkpoint done */
302 struct llist_node llnode; /* llist_node to be linked in wait queue */
303 int ret; /* return code of checkpoint */
304 ktime_t queue_time; /* request queued time */
307 struct ckpt_req_control {
308 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
309 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
310 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
311 atomic_t issued_ckpt; /* # of actually issued ckpts */
312 atomic_t total_ckpt; /* # of total ckpts */
313 atomic_t queued_ckpt; /* # of queued ckpts */
314 struct llist_head issue_list; /* list for command issue */
315 spinlock_t stat_lock; /* lock for below checkpoint time stats */
316 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
317 unsigned int peak_time; /* peak wait time in msec until now */
320 /* for the bitmap indicate blocks to be discarded */
321 struct discard_entry {
322 struct list_head list; /* list head */
323 block_t start_blkaddr; /* start blockaddr of current segment */
324 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
327 /* default discard granularity of inner discard thread, unit: block count */
328 #define DEFAULT_DISCARD_GRANULARITY 16
330 /* max discard pend list number */
331 #define MAX_PLIST_NUM 512
332 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
333 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
336 D_PREP, /* initial */
337 D_PARTIAL, /* partially submitted */
338 D_SUBMIT, /* all submitted */
339 D_DONE, /* finished */
342 struct discard_info {
343 block_t lstart; /* logical start address */
344 block_t len; /* length */
345 block_t start; /* actual start address in dev */
349 struct rb_node rb_node; /* rb node located in rb-tree */
352 block_t lstart; /* logical start address */
353 block_t len; /* length */
354 block_t start; /* actual start address in dev */
356 struct discard_info di; /* discard info */
359 struct list_head list; /* command list */
360 struct completion wait; /* compleation */
361 struct block_device *bdev; /* bdev */
362 unsigned short ref; /* reference count */
363 unsigned char state; /* state */
364 unsigned char queued; /* queued discard */
365 int error; /* bio error */
366 spinlock_t lock; /* for state/bio_ref updating */
367 unsigned short bio_ref; /* bio reference count */
378 struct discard_policy {
379 int type; /* type of discard */
380 unsigned int min_interval; /* used for candidates exist */
381 unsigned int mid_interval; /* used for device busy */
382 unsigned int max_interval; /* used for candidates not exist */
383 unsigned int max_requests; /* # of discards issued per round */
384 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
385 bool io_aware; /* issue discard in idle time */
386 bool sync; /* submit discard with REQ_SYNC flag */
387 bool ordered; /* issue discard by lba order */
388 bool timeout; /* discard timeout for put_super */
389 unsigned int granularity; /* discard granularity */
392 struct discard_cmd_control {
393 struct task_struct *f2fs_issue_discard; /* discard thread */
394 struct list_head entry_list; /* 4KB discard entry list */
395 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
396 struct list_head wait_list; /* store on-flushing entries */
397 struct list_head fstrim_list; /* in-flight discard from fstrim */
398 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
399 unsigned int discard_wake; /* to wake up discard thread */
400 struct mutex cmd_lock;
401 unsigned int nr_discards; /* # of discards in the list */
402 unsigned int max_discards; /* max. discards to be issued */
403 unsigned int max_discard_request; /* max. discard request per round */
404 unsigned int min_discard_issue_time; /* min. interval between discard issue */
405 unsigned int mid_discard_issue_time; /* mid. interval between discard issue */
406 unsigned int max_discard_issue_time; /* max. interval between discard issue */
407 unsigned int discard_granularity; /* discard granularity */
408 unsigned int undiscard_blks; /* # of undiscard blocks */
409 unsigned int next_pos; /* next discard position */
410 atomic_t issued_discard; /* # of issued discard */
411 atomic_t queued_discard; /* # of queued discard */
412 atomic_t discard_cmd_cnt; /* # of cached cmd count */
413 struct rb_root_cached root; /* root of discard rb-tree */
414 bool rbtree_check; /* config for consistence check */
417 /* for the list of fsync inodes, used only during recovery */
418 struct fsync_inode_entry {
419 struct list_head list; /* list head */
420 struct inode *inode; /* vfs inode pointer */
421 block_t blkaddr; /* block address locating the last fsync */
422 block_t last_dentry; /* block address locating the last dentry */
425 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
426 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
428 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
429 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
430 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
431 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
433 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
434 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
436 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
438 int before = nats_in_cursum(journal);
440 journal->n_nats = cpu_to_le16(before + i);
444 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
446 int before = sits_in_cursum(journal);
448 journal->n_sits = cpu_to_le16(before + i);
452 static inline bool __has_cursum_space(struct f2fs_journal *journal,
455 if (type == NAT_JOURNAL)
456 return size <= MAX_NAT_JENTRIES(journal);
457 return size <= MAX_SIT_JENTRIES(journal);
460 /* for inline stuff */
461 #define DEF_INLINE_RESERVED_SIZE 1
462 static inline int get_extra_isize(struct inode *inode);
463 static inline int get_inline_xattr_addrs(struct inode *inode);
464 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
465 (CUR_ADDRS_PER_INODE(inode) - \
466 get_inline_xattr_addrs(inode) - \
467 DEF_INLINE_RESERVED_SIZE))
470 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
471 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
473 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
474 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
475 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
476 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
477 NR_INLINE_DENTRY(inode) + \
478 INLINE_DENTRY_BITMAP_SIZE(inode)))
481 * For INODE and NODE manager
483 /* for directory operations */
485 struct f2fs_filename {
487 * The filename the user specified. This is NULL for some
488 * filesystem-internal operations, e.g. converting an inline directory
489 * to a non-inline one, or roll-forward recovering an encrypted dentry.
491 const struct qstr *usr_fname;
494 * The on-disk filename. For encrypted directories, this is encrypted.
495 * This may be NULL for lookups in an encrypted dir without the key.
497 struct fscrypt_str disk_name;
499 /* The dirhash of this filename */
502 #ifdef CONFIG_FS_ENCRYPTION
504 * For lookups in encrypted directories: either the buffer backing
505 * disk_name, or a buffer that holds the decoded no-key name.
507 struct fscrypt_str crypto_buf;
509 #if IS_ENABLED(CONFIG_UNICODE)
511 * For casefolded directories: the casefolded name, but it's left NULL
512 * if the original name is not valid Unicode, if the original name is
513 * "." or "..", if the directory is both casefolded and encrypted and
514 * its encryption key is unavailable, or if the filesystem is doing an
515 * internal operation where usr_fname is also NULL. In all these cases
516 * we fall back to treating the name as an opaque byte sequence.
518 struct fscrypt_str cf_name;
522 struct f2fs_dentry_ptr {
525 struct f2fs_dir_entry *dentry;
526 __u8 (*filename)[F2FS_SLOT_LEN];
531 static inline void make_dentry_ptr_block(struct inode *inode,
532 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
535 d->max = NR_DENTRY_IN_BLOCK;
536 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
537 d->bitmap = t->dentry_bitmap;
538 d->dentry = t->dentry;
539 d->filename = t->filename;
542 static inline void make_dentry_ptr_inline(struct inode *inode,
543 struct f2fs_dentry_ptr *d, void *t)
545 int entry_cnt = NR_INLINE_DENTRY(inode);
546 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
547 int reserved_size = INLINE_RESERVED_SIZE(inode);
551 d->nr_bitmap = bitmap_size;
553 d->dentry = t + bitmap_size + reserved_size;
554 d->filename = t + bitmap_size + reserved_size +
555 SIZE_OF_DIR_ENTRY * entry_cnt;
559 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
560 * as its node offset to distinguish from index node blocks.
561 * But some bits are used to mark the node block.
563 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
566 ALLOC_NODE, /* allocate a new node page if needed */
567 LOOKUP_NODE, /* look up a node without readahead */
569 * look up a node with readahead called
574 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
576 /* congestion wait timeout value, default: 20ms */
577 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
579 /* maximum retry quota flush count */
580 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
582 /* maximum retry of EIO'ed page */
583 #define MAX_RETRY_PAGE_EIO 100
585 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
587 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
589 /* dirty segments threshold for triggering CP */
590 #define DEFAULT_DIRTY_THRESHOLD 4
592 /* for in-memory extent cache entry */
593 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
595 /* number of extent info in extent cache we try to shrink */
596 #define EXTENT_CACHE_SHRINK_NUMBER 128
598 #define RECOVERY_MAX_RA_BLOCKS BIO_MAX_VECS
599 #define RECOVERY_MIN_RA_BLOCKS 1
601 #define F2FS_ONSTACK_PAGES 16 /* nr of onstack pages */
604 struct rb_node rb_node; /* rb node located in rb-tree */
607 unsigned int ofs; /* start offset of the entry */
608 unsigned int len; /* length of the entry */
610 unsigned long long key; /* 64-bits key */
615 unsigned int fofs; /* start offset in a file */
616 unsigned int len; /* length of the extent */
617 u32 blk; /* start block address of the extent */
618 #ifdef CONFIG_F2FS_FS_COMPRESSION
619 unsigned int c_len; /* physical extent length of compressed blocks */
624 struct rb_node rb_node; /* rb node located in rb-tree */
625 struct extent_info ei; /* extent info */
626 struct list_head list; /* node in global extent list of sbi */
627 struct extent_tree *et; /* extent tree pointer */
631 nid_t ino; /* inode number */
632 struct rb_root_cached root; /* root of extent info rb-tree */
633 struct extent_node *cached_en; /* recently accessed extent node */
634 struct extent_info largest; /* largested extent info */
635 struct list_head list; /* to be used by sbi->zombie_list */
636 rwlock_t lock; /* protect extent info rb-tree */
637 atomic_t node_cnt; /* # of extent node in rb-tree*/
638 bool largest_updated; /* largest extent updated */
642 * This structure is taken from ext4_map_blocks.
644 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
646 #define F2FS_MAP_NEW (1 << BH_New)
647 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
648 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
649 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
652 struct f2fs_map_blocks {
653 struct block_device *m_bdev; /* for multi-device dio */
657 unsigned int m_flags;
658 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
659 pgoff_t *m_next_extent; /* point to next possible extent */
661 bool m_may_create; /* indicate it is from write path */
662 bool m_multidev_dio; /* indicate it allows multi-device dio */
665 /* for flag in get_data_block */
667 F2FS_GET_BLOCK_DEFAULT,
668 F2FS_GET_BLOCK_FIEMAP,
671 F2FS_GET_BLOCK_PRE_DIO,
672 F2FS_GET_BLOCK_PRE_AIO,
673 F2FS_GET_BLOCK_PRECACHE,
677 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
679 #define FADVISE_COLD_BIT 0x01
680 #define FADVISE_LOST_PINO_BIT 0x02
681 #define FADVISE_ENCRYPT_BIT 0x04
682 #define FADVISE_ENC_NAME_BIT 0x08
683 #define FADVISE_KEEP_SIZE_BIT 0x10
684 #define FADVISE_HOT_BIT 0x20
685 #define FADVISE_VERITY_BIT 0x40
686 #define FADVISE_TRUNC_BIT 0x80
688 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
690 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
691 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
692 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
694 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
695 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
696 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
698 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
699 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
701 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
702 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
704 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
705 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
707 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
708 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
709 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
711 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
712 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
714 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
715 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
716 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
718 #define DEF_DIR_LEVEL 0
725 /* used for f2fs_inode_info->flags */
727 FI_NEW_INODE, /* indicate newly allocated inode */
728 FI_DIRTY_INODE, /* indicate inode is dirty or not */
729 FI_AUTO_RECOVER, /* indicate inode is recoverable */
730 FI_DIRTY_DIR, /* indicate directory has dirty pages */
731 FI_INC_LINK, /* need to increment i_nlink */
732 FI_ACL_MODE, /* indicate acl mode */
733 FI_NO_ALLOC, /* should not allocate any blocks */
734 FI_FREE_NID, /* free allocated nide */
735 FI_NO_EXTENT, /* not to use the extent cache */
736 FI_INLINE_XATTR, /* used for inline xattr */
737 FI_INLINE_DATA, /* used for inline data*/
738 FI_INLINE_DENTRY, /* used for inline dentry */
739 FI_APPEND_WRITE, /* inode has appended data */
740 FI_UPDATE_WRITE, /* inode has in-place-update data */
741 FI_NEED_IPU, /* used for ipu per file */
742 FI_ATOMIC_FILE, /* indicate atomic file */
743 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
744 FI_DROP_CACHE, /* drop dirty page cache */
745 FI_DATA_EXIST, /* indicate data exists */
746 FI_INLINE_DOTS, /* indicate inline dot dentries */
747 FI_SKIP_WRITES, /* should skip data page writeback */
748 FI_OPU_WRITE, /* used for opu per file */
749 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
750 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
751 FI_HOT_DATA, /* indicate file is hot */
752 FI_EXTRA_ATTR, /* indicate file has extra attribute */
753 FI_PROJ_INHERIT, /* indicate file inherits projectid */
754 FI_PIN_FILE, /* indicate file should not be gced */
755 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
756 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
757 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
758 FI_MMAP_FILE, /* indicate file was mmapped */
759 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
760 FI_COMPRESS_RELEASED, /* compressed blocks were released */
761 FI_ALIGNED_WRITE, /* enable aligned write */
762 FI_COW_FILE, /* indicate COW file */
763 FI_MAX, /* max flag, never be used */
766 struct f2fs_inode_info {
767 struct inode vfs_inode; /* serve a vfs inode */
768 unsigned long i_flags; /* keep an inode flags for ioctl */
769 unsigned char i_advise; /* use to give file attribute hints */
770 unsigned char i_dir_level; /* use for dentry level for large dir */
771 unsigned int i_current_depth; /* only for directory depth */
772 /* for gc failure statistic */
773 unsigned int i_gc_failures[MAX_GC_FAILURE];
774 unsigned int i_pino; /* parent inode number */
775 umode_t i_acl_mode; /* keep file acl mode temporarily */
777 /* Use below internally in f2fs*/
778 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
779 struct f2fs_rwsem i_sem; /* protect fi info */
780 atomic_t dirty_pages; /* # of dirty pages */
781 f2fs_hash_t chash; /* hash value of given file name */
782 unsigned int clevel; /* maximum level of given file name */
783 struct task_struct *task; /* lookup and create consistency */
784 struct task_struct *cp_task; /* separate cp/wb IO stats*/
785 nid_t i_xattr_nid; /* node id that contains xattrs */
786 loff_t last_disk_size; /* lastly written file size */
787 spinlock_t i_size_lock; /* protect last_disk_size */
790 struct dquot *i_dquot[MAXQUOTAS];
792 /* quota space reservation, managed internally by quota code */
793 qsize_t i_reserved_quota;
795 struct list_head dirty_list; /* dirty list for dirs and files */
796 struct list_head gdirty_list; /* linked in global dirty list */
797 struct task_struct *atomic_write_task; /* store atomic write task */
798 struct extent_tree *extent_tree; /* cached extent_tree entry */
799 struct inode *cow_inode; /* copy-on-write inode for atomic write */
801 /* avoid racing between foreground op and gc */
802 struct f2fs_rwsem i_gc_rwsem[2];
803 struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
805 int i_extra_isize; /* size of extra space located in i_addr */
806 kprojid_t i_projid; /* id for project quota */
807 int i_inline_xattr_size; /* inline xattr size */
808 struct timespec64 i_crtime; /* inode creation time */
809 struct timespec64 i_disk_time[4];/* inode disk times */
811 /* for file compress */
812 atomic_t i_compr_blocks; /* # of compressed blocks */
813 unsigned char i_compress_algorithm; /* algorithm type */
814 unsigned char i_log_cluster_size; /* log of cluster size */
815 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
816 unsigned short i_compress_flag; /* compress flag */
817 unsigned int i_cluster_size; /* cluster size */
819 unsigned int atomic_write_cnt;
822 static inline void get_extent_info(struct extent_info *ext,
823 struct f2fs_extent *i_ext)
825 ext->fofs = le32_to_cpu(i_ext->fofs);
826 ext->blk = le32_to_cpu(i_ext->blk);
827 ext->len = le32_to_cpu(i_ext->len);
830 static inline void set_raw_extent(struct extent_info *ext,
831 struct f2fs_extent *i_ext)
833 i_ext->fofs = cpu_to_le32(ext->fofs);
834 i_ext->blk = cpu_to_le32(ext->blk);
835 i_ext->len = cpu_to_le32(ext->len);
838 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
839 u32 blk, unsigned int len)
844 #ifdef CONFIG_F2FS_FS_COMPRESSION
849 static inline bool __is_discard_mergeable(struct discard_info *back,
850 struct discard_info *front, unsigned int max_len)
852 return (back->lstart + back->len == front->lstart) &&
853 (back->len + front->len <= max_len);
856 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
857 struct discard_info *back, unsigned int max_len)
859 return __is_discard_mergeable(back, cur, max_len);
862 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
863 struct discard_info *front, unsigned int max_len)
865 return __is_discard_mergeable(cur, front, max_len);
868 static inline bool __is_extent_mergeable(struct extent_info *back,
869 struct extent_info *front)
871 #ifdef CONFIG_F2FS_FS_COMPRESSION
872 if (back->c_len && back->len != back->c_len)
874 if (front->c_len && front->len != front->c_len)
877 return (back->fofs + back->len == front->fofs &&
878 back->blk + back->len == front->blk);
881 static inline bool __is_back_mergeable(struct extent_info *cur,
882 struct extent_info *back)
884 return __is_extent_mergeable(back, cur);
887 static inline bool __is_front_mergeable(struct extent_info *cur,
888 struct extent_info *front)
890 return __is_extent_mergeable(cur, front);
893 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
894 static inline void __try_update_largest_extent(struct extent_tree *et,
895 struct extent_node *en)
897 if (en->ei.len > et->largest.len) {
898 et->largest = en->ei;
899 et->largest_updated = true;
904 * For free nid management
907 FREE_NID, /* newly added to free nid list */
908 PREALLOC_NID, /* it is preallocated */
919 struct f2fs_nm_info {
920 block_t nat_blkaddr; /* base disk address of NAT */
921 nid_t max_nid; /* maximum possible node ids */
922 nid_t available_nids; /* # of available node ids */
923 nid_t next_scan_nid; /* the next nid to be scanned */
924 nid_t max_rf_node_blocks; /* max # of nodes for recovery */
925 unsigned int ram_thresh; /* control the memory footprint */
926 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
927 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
929 /* NAT cache management */
930 struct radix_tree_root nat_root;/* root of the nat entry cache */
931 struct radix_tree_root nat_set_root;/* root of the nat set cache */
932 struct f2fs_rwsem nat_tree_lock; /* protect nat entry tree */
933 struct list_head nat_entries; /* cached nat entry list (clean) */
934 spinlock_t nat_list_lock; /* protect clean nat entry list */
935 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
936 unsigned int nat_blocks; /* # of nat blocks */
938 /* free node ids management */
939 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
940 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
941 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
942 spinlock_t nid_list_lock; /* protect nid lists ops */
943 struct mutex build_lock; /* lock for build free nids */
944 unsigned char **free_nid_bitmap;
945 unsigned char *nat_block_bitmap;
946 unsigned short *free_nid_count; /* free nid count of NAT block */
949 char *nat_bitmap; /* NAT bitmap pointer */
951 unsigned int nat_bits_blocks; /* # of nat bits blocks */
952 unsigned char *nat_bits; /* NAT bits blocks */
953 unsigned char *full_nat_bits; /* full NAT pages */
954 unsigned char *empty_nat_bits; /* empty NAT pages */
955 #ifdef CONFIG_F2FS_CHECK_FS
956 char *nat_bitmap_mir; /* NAT bitmap mirror */
958 int bitmap_size; /* bitmap size */
962 * this structure is used as one of function parameters.
963 * all the information are dedicated to a given direct node block determined
964 * by the data offset in a file.
966 struct dnode_of_data {
967 struct inode *inode; /* vfs inode pointer */
968 struct page *inode_page; /* its inode page, NULL is possible */
969 struct page *node_page; /* cached direct node page */
970 nid_t nid; /* node id of the direct node block */
971 unsigned int ofs_in_node; /* data offset in the node page */
972 bool inode_page_locked; /* inode page is locked or not */
973 bool node_changed; /* is node block changed */
974 char cur_level; /* level of hole node page */
975 char max_level; /* level of current page located */
976 block_t data_blkaddr; /* block address of the node block */
979 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
980 struct page *ipage, struct page *npage, nid_t nid)
982 memset(dn, 0, sizeof(*dn));
984 dn->inode_page = ipage;
985 dn->node_page = npage;
992 * By default, there are 6 active log areas across the whole main area.
993 * When considering hot and cold data separation to reduce cleaning overhead,
994 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
996 * In the current design, you should not change the numbers intentionally.
997 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
998 * logs individually according to the underlying devices. (default: 6)
999 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
1000 * data and 8 for node logs.
1002 #define NR_CURSEG_DATA_TYPE (3)
1003 #define NR_CURSEG_NODE_TYPE (3)
1004 #define NR_CURSEG_INMEM_TYPE (2)
1005 #define NR_CURSEG_RO_TYPE (2)
1006 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
1007 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
1010 CURSEG_HOT_DATA = 0, /* directory entry blocks */
1011 CURSEG_WARM_DATA, /* data blocks */
1012 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
1013 CURSEG_HOT_NODE, /* direct node blocks of directory files */
1014 CURSEG_WARM_NODE, /* direct node blocks of normal files */
1015 CURSEG_COLD_NODE, /* indirect node blocks */
1016 NR_PERSISTENT_LOG, /* number of persistent log */
1017 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
1018 /* pinned file that needs consecutive block address */
1019 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
1020 NO_CHECK_TYPE, /* number of persistent & inmem log */
1024 struct completion wait;
1025 struct llist_node llnode;
1030 struct flush_cmd_control {
1031 struct task_struct *f2fs_issue_flush; /* flush thread */
1032 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1033 atomic_t issued_flush; /* # of issued flushes */
1034 atomic_t queued_flush; /* # of queued flushes */
1035 struct llist_head issue_list; /* list for command issue */
1036 struct llist_node *dispatch_list; /* list for command dispatch */
1039 struct f2fs_sm_info {
1040 struct sit_info *sit_info; /* whole segment information */
1041 struct free_segmap_info *free_info; /* free segment information */
1042 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1043 struct curseg_info *curseg_array; /* active segment information */
1045 struct f2fs_rwsem curseg_lock; /* for preventing curseg change */
1047 block_t seg0_blkaddr; /* block address of 0'th segment */
1048 block_t main_blkaddr; /* start block address of main area */
1049 block_t ssa_blkaddr; /* start block address of SSA area */
1051 unsigned int segment_count; /* total # of segments */
1052 unsigned int main_segments; /* # of segments in main area */
1053 unsigned int reserved_segments; /* # of reserved segments */
1054 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1055 unsigned int ovp_segments; /* # of overprovision segments */
1057 /* a threshold to reclaim prefree segments */
1058 unsigned int rec_prefree_segments;
1060 /* for batched trimming */
1061 unsigned int trim_sections; /* # of sections to trim */
1063 struct list_head sit_entry_set; /* sit entry set list */
1065 unsigned int ipu_policy; /* in-place-update policy */
1066 unsigned int min_ipu_util; /* in-place-update threshold */
1067 unsigned int min_fsync_blocks; /* threshold for fsync */
1068 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1069 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1070 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1072 /* for flush command control */
1073 struct flush_cmd_control *fcc_info;
1075 /* for discard command control */
1076 struct discard_cmd_control *dcc_info;
1083 * COUNT_TYPE for monitoring
1085 * f2fs monitors the number of several block types such as on-writeback,
1086 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1088 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1107 * The below are the page types of bios used in submit_bio().
1108 * The available types are:
1109 * DATA User data pages. It operates as async mode.
1110 * NODE Node pages. It operates as async mode.
1111 * META FS metadata pages such as SIT, NAT, CP.
1112 * NR_PAGE_TYPE The number of page types.
1113 * META_FLUSH Make sure the previous pages are written
1114 * with waiting the bio's completion
1115 * ... Only can be used with META.
1117 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1120 NODE = 1, /* should not change this */
1124 IPU, /* the below types are used by tracepoints only. */
1129 HOT = 0, /* must be zero for meta bio */
1135 enum need_lock_type {
1141 enum cp_reason_type {
1157 APP_DIRECT_IO, /* app direct write IOs */
1158 APP_BUFFERED_IO, /* app buffered write IOs */
1159 APP_WRITE_IO, /* app write IOs */
1160 APP_MAPPED_IO, /* app mapped IOs */
1161 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1162 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1163 FS_META_IO, /* meta IOs from kworker/reclaimer */
1164 FS_GC_DATA_IO, /* data IOs from forground gc */
1165 FS_GC_NODE_IO, /* node IOs from forground gc */
1166 FS_CP_DATA_IO, /* data IOs from checkpoint */
1167 FS_CP_NODE_IO, /* node IOs from checkpoint */
1168 FS_CP_META_IO, /* meta IOs from checkpoint */
1171 APP_DIRECT_READ_IO, /* app direct read IOs */
1172 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1173 APP_READ_IO, /* app read IOs */
1174 APP_MAPPED_READ_IO, /* app mapped read IOs */
1175 FS_DATA_READ_IO, /* data read IOs */
1176 FS_GDATA_READ_IO, /* data read IOs from background gc */
1177 FS_CDATA_READ_IO, /* compressed data read IOs */
1178 FS_NODE_READ_IO, /* node read IOs */
1179 FS_META_READ_IO, /* meta read IOs */
1182 FS_DISCARD, /* discard */
1186 struct f2fs_io_info {
1187 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1188 nid_t ino; /* inode number */
1189 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1190 enum temp_type temp; /* contains HOT/WARM/COLD */
1191 enum req_op op; /* contains REQ_OP_ */
1192 blk_opf_t op_flags; /* req_flag_bits */
1193 block_t new_blkaddr; /* new block address to be written */
1194 block_t old_blkaddr; /* old block address before Cow */
1195 struct page *page; /* page to be written */
1196 struct page *encrypted_page; /* encrypted page */
1197 struct page *compressed_page; /* compressed page */
1198 struct list_head list; /* serialize IOs */
1199 bool submitted; /* indicate IO submission */
1200 int need_lock; /* indicate we need to lock cp_rwsem */
1201 bool in_list; /* indicate fio is in io_list */
1202 bool is_por; /* indicate IO is from recovery or not */
1203 bool retry; /* need to reallocate block address */
1204 int compr_blocks; /* # of compressed block addresses */
1205 bool encrypted; /* indicate file is encrypted */
1206 bool post_read; /* require post read */
1207 enum iostat_type io_type; /* io type */
1208 struct writeback_control *io_wbc; /* writeback control */
1209 struct bio **bio; /* bio for ipu */
1210 sector_t *last_block; /* last block number in bio */
1211 unsigned char version; /* version of the node */
1216 struct list_head list;
1219 #define is_read_io(rw) ((rw) == READ)
1220 struct f2fs_bio_info {
1221 struct f2fs_sb_info *sbi; /* f2fs superblock */
1222 struct bio *bio; /* bios to merge */
1223 sector_t last_block_in_bio; /* last block number */
1224 struct f2fs_io_info fio; /* store buffered io info. */
1225 struct f2fs_rwsem io_rwsem; /* blocking op for bio */
1226 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1227 struct list_head io_list; /* track fios */
1228 struct list_head bio_list; /* bio entry list head */
1229 struct f2fs_rwsem bio_list_lock; /* lock to protect bio entry list */
1232 #define FDEV(i) (sbi->devs[i])
1233 #define RDEV(i) (raw_super->devs[i])
1234 struct f2fs_dev_info {
1235 struct block_device *bdev;
1236 char path[MAX_PATH_LEN];
1237 unsigned int total_segments;
1240 #ifdef CONFIG_BLK_DEV_ZONED
1241 unsigned int nr_blkz; /* Total number of zones */
1242 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1247 DIR_INODE, /* for dirty dir inode */
1248 FILE_INODE, /* for dirty regular/symlink inode */
1249 DIRTY_META, /* for all dirtied inode metadata */
1250 ATOMIC_FILE, /* for all atomic files */
1254 /* for inner inode cache management */
1255 struct inode_management {
1256 struct radix_tree_root ino_root; /* ino entry array */
1257 spinlock_t ino_lock; /* for ino entry lock */
1258 struct list_head ino_list; /* inode list head */
1259 unsigned long ino_num; /* number of entries */
1263 struct atgc_management {
1264 bool atgc_enabled; /* ATGC is enabled or not */
1265 struct rb_root_cached root; /* root of victim rb-tree */
1266 struct list_head victim_list; /* linked with all victim entries */
1267 unsigned int victim_count; /* victim count in rb-tree */
1268 unsigned int candidate_ratio; /* candidate ratio */
1269 unsigned int max_candidate_count; /* max candidate count */
1270 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1271 unsigned long long age_threshold; /* age threshold */
1274 struct f2fs_gc_control {
1275 unsigned int victim_segno; /* target victim segment number */
1276 int init_gc_type; /* FG_GC or BG_GC */
1277 bool no_bg_gc; /* check the space and stop bg_gc */
1278 bool should_migrate_blocks; /* should migrate blocks */
1279 bool err_gc_skipped; /* return EAGAIN if GC skipped */
1280 unsigned int nr_free_secs; /* # of free sections to do GC */
1283 /* For s_flag in struct f2fs_sb_info */
1285 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1286 SBI_IS_CLOSE, /* specify unmounting */
1287 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1288 SBI_POR_DOING, /* recovery is doing or not */
1289 SBI_NEED_SB_WRITE, /* need to recover superblock */
1290 SBI_NEED_CP, /* need to checkpoint */
1291 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1292 SBI_IS_RECOVERED, /* recovered orphan/data */
1293 SBI_CP_DISABLED, /* CP was disabled last mount */
1294 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1295 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1296 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1297 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1298 SBI_IS_RESIZEFS, /* resizefs is in process */
1299 SBI_IS_FREEZING, /* freezefs is in process */
1308 UMOUNT_DISCARD_TIMEOUT,
1324 BGGC_MODE_ON, /* background gc is on */
1325 BGGC_MODE_OFF, /* background gc is off */
1327 * background gc is on, migrating blocks
1328 * like foreground gc
1333 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1334 FS_MODE_LFS, /* use lfs allocation only */
1335 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1336 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1340 ALLOC_MODE_DEFAULT, /* stay default */
1341 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1345 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1346 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1347 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1352 * automatically compress compression
1356 * automatical compression is disabled.
1357 * user can control the file compression
1363 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1364 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1365 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1369 MEMORY_MODE_NORMAL, /* memory mode for normal devices */
1370 MEMORY_MODE_LOW, /* memory mode for low memry devices */
1375 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1376 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1377 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1380 * Layout of f2fs page.private:
1382 * Layout A: lowest bit should be 1
1383 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1384 * bit 0 PAGE_PRIVATE_NOT_POINTER
1385 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1386 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1387 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1388 * bit 4 PAGE_PRIVATE_INLINE_INODE
1389 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1390 * bit 6- f2fs private data
1392 * Layout B: lowest bit should be 0
1393 * page.private is a wrapped pointer.
1396 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1397 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1398 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1399 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1400 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1401 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1405 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1406 static inline bool page_private_##name(struct page *page) \
1408 return PagePrivate(page) && \
1409 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1410 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1413 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1414 static inline void set_page_private_##name(struct page *page) \
1416 if (!PagePrivate(page)) { \
1418 SetPagePrivate(page); \
1419 set_page_private(page, 0); \
1421 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1422 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1425 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1426 static inline void clear_page_private_##name(struct page *page) \
1428 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1429 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1430 set_page_private(page, 0); \
1431 if (PagePrivate(page)) { \
1432 ClearPagePrivate(page); \
1438 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1439 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1440 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1441 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1442 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1443 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1445 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1446 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1447 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1448 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1449 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1451 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1452 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1453 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1454 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1455 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1457 static inline unsigned long get_page_private_data(struct page *page)
1459 unsigned long data = page_private(page);
1461 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1463 return data >> PAGE_PRIVATE_MAX;
1466 static inline void set_page_private_data(struct page *page, unsigned long data)
1468 if (!PagePrivate(page)) {
1470 SetPagePrivate(page);
1471 set_page_private(page, 0);
1473 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1474 page_private(page) |= data << PAGE_PRIVATE_MAX;
1477 static inline void clear_page_private_data(struct page *page)
1479 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1480 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1481 set_page_private(page, 0);
1482 if (PagePrivate(page)) {
1483 ClearPagePrivate(page);
1489 /* For compression */
1490 enum compress_algorithm_type {
1498 enum compress_flag {
1503 #define COMPRESS_WATERMARK 20
1504 #define COMPRESS_PERCENT 20
1506 #define COMPRESS_DATA_RESERVED_SIZE 4
1507 struct compress_data {
1508 __le32 clen; /* compressed data size */
1509 __le32 chksum; /* compressed data chksum */
1510 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1511 u8 cdata[]; /* compressed data */
1514 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1516 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1518 #define COMPRESS_LEVEL_OFFSET 8
1520 /* compress context */
1521 struct compress_ctx {
1522 struct inode *inode; /* inode the context belong to */
1523 pgoff_t cluster_idx; /* cluster index number */
1524 unsigned int cluster_size; /* page count in cluster */
1525 unsigned int log_cluster_size; /* log of cluster size */
1526 struct page **rpages; /* pages store raw data in cluster */
1527 unsigned int nr_rpages; /* total page number in rpages */
1528 struct page **cpages; /* pages store compressed data in cluster */
1529 unsigned int nr_cpages; /* total page number in cpages */
1530 unsigned int valid_nr_cpages; /* valid page number in cpages */
1531 void *rbuf; /* virtual mapped address on rpages */
1532 struct compress_data *cbuf; /* virtual mapped address on cpages */
1533 size_t rlen; /* valid data length in rbuf */
1534 size_t clen; /* valid data length in cbuf */
1535 void *private; /* payload buffer for specified compression algorithm */
1536 void *private2; /* extra payload buffer */
1539 /* compress context for write IO path */
1540 struct compress_io_ctx {
1541 u32 magic; /* magic number to indicate page is compressed */
1542 struct inode *inode; /* inode the context belong to */
1543 struct page **rpages; /* pages store raw data in cluster */
1544 unsigned int nr_rpages; /* total page number in rpages */
1545 atomic_t pending_pages; /* in-flight compressed page count */
1548 /* Context for decompressing one cluster on the read IO path */
1549 struct decompress_io_ctx {
1550 u32 magic; /* magic number to indicate page is compressed */
1551 struct inode *inode; /* inode the context belong to */
1552 pgoff_t cluster_idx; /* cluster index number */
1553 unsigned int cluster_size; /* page count in cluster */
1554 unsigned int log_cluster_size; /* log of cluster size */
1555 struct page **rpages; /* pages store raw data in cluster */
1556 unsigned int nr_rpages; /* total page number in rpages */
1557 struct page **cpages; /* pages store compressed data in cluster */
1558 unsigned int nr_cpages; /* total page number in cpages */
1559 struct page **tpages; /* temp pages to pad holes in cluster */
1560 void *rbuf; /* virtual mapped address on rpages */
1561 struct compress_data *cbuf; /* virtual mapped address on cpages */
1562 size_t rlen; /* valid data length in rbuf */
1563 size_t clen; /* valid data length in cbuf */
1566 * The number of compressed pages remaining to be read in this cluster.
1567 * This is initially nr_cpages. It is decremented by 1 each time a page
1568 * has been read (or failed to be read). When it reaches 0, the cluster
1569 * is decompressed (or an error is reported).
1571 * If an error occurs before all the pages have been submitted for I/O,
1572 * then this will never reach 0. In this case the I/O submitter is
1573 * responsible for calling f2fs_decompress_end_io() instead.
1575 atomic_t remaining_pages;
1578 * Number of references to this decompress_io_ctx.
1580 * One reference is held for I/O completion. This reference is dropped
1581 * after the pagecache pages are updated and unlocked -- either after
1582 * decompression (and verity if enabled), or after an error.
1584 * In addition, each compressed page holds a reference while it is in a
1585 * bio. These references are necessary prevent compressed pages from
1586 * being freed while they are still in a bio.
1590 bool failed; /* IO error occurred before decompression? */
1591 bool need_verity; /* need fs-verity verification after decompression? */
1592 void *private; /* payload buffer for specified decompression algorithm */
1593 void *private2; /* extra payload buffer */
1594 struct work_struct verity_work; /* work to verify the decompressed pages */
1595 struct work_struct free_work; /* work for late free this structure itself */
1598 #define NULL_CLUSTER ((unsigned int)(~0))
1599 #define MIN_COMPRESS_LOG_SIZE 2
1600 #define MAX_COMPRESS_LOG_SIZE 8
1601 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1603 struct f2fs_sb_info {
1604 struct super_block *sb; /* pointer to VFS super block */
1605 struct proc_dir_entry *s_proc; /* proc entry */
1606 struct f2fs_super_block *raw_super; /* raw super block pointer */
1607 struct f2fs_rwsem sb_lock; /* lock for raw super block */
1608 int valid_super_block; /* valid super block no */
1609 unsigned long s_flag; /* flags for sbi */
1610 struct mutex writepages; /* mutex for writepages() */
1612 #ifdef CONFIG_BLK_DEV_ZONED
1613 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1614 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1617 /* for node-related operations */
1618 struct f2fs_nm_info *nm_info; /* node manager */
1619 struct inode *node_inode; /* cache node blocks */
1621 /* for segment-related operations */
1622 struct f2fs_sm_info *sm_info; /* segment manager */
1624 /* for bio operations */
1625 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1626 /* keep migration IO order for LFS mode */
1627 struct f2fs_rwsem io_order_lock;
1628 mempool_t *write_io_dummy; /* Dummy pages */
1629 pgoff_t page_eio_ofs[NR_PAGE_TYPE]; /* EIO page offset */
1630 int page_eio_cnt[NR_PAGE_TYPE]; /* EIO count */
1632 /* for checkpoint */
1633 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1634 int cur_cp_pack; /* remain current cp pack */
1635 spinlock_t cp_lock; /* for flag in ckpt */
1636 struct inode *meta_inode; /* cache meta blocks */
1637 struct f2fs_rwsem cp_global_sem; /* checkpoint procedure lock */
1638 struct f2fs_rwsem cp_rwsem; /* blocking FS operations */
1639 struct f2fs_rwsem node_write; /* locking node writes */
1640 struct f2fs_rwsem node_change; /* locking node change */
1641 wait_queue_head_t cp_wait;
1642 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1643 long interval_time[MAX_TIME]; /* to store thresholds */
1644 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1646 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1648 spinlock_t fsync_node_lock; /* for node entry lock */
1649 struct list_head fsync_node_list; /* node list head */
1650 unsigned int fsync_seg_id; /* sequence id */
1651 unsigned int fsync_node_num; /* number of node entries */
1653 /* for orphan inode, use 0'th array */
1654 unsigned int max_orphans; /* max orphan inodes */
1656 /* for inode management */
1657 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1658 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1659 struct mutex flush_lock; /* for flush exclusion */
1661 /* for extent tree cache */
1662 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1663 struct mutex extent_tree_lock; /* locking extent radix tree */
1664 struct list_head extent_list; /* lru list for shrinker */
1665 spinlock_t extent_lock; /* locking extent lru list */
1666 atomic_t total_ext_tree; /* extent tree count */
1667 struct list_head zombie_list; /* extent zombie tree list */
1668 atomic_t total_zombie_tree; /* extent zombie tree count */
1669 atomic_t total_ext_node; /* extent info count */
1671 /* basic filesystem units */
1672 unsigned int log_sectors_per_block; /* log2 sectors per block */
1673 unsigned int log_blocksize; /* log2 block size */
1674 unsigned int blocksize; /* block size */
1675 unsigned int root_ino_num; /* root inode number*/
1676 unsigned int node_ino_num; /* node inode number*/
1677 unsigned int meta_ino_num; /* meta inode number*/
1678 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1679 unsigned int blocks_per_seg; /* blocks per segment */
1680 unsigned int unusable_blocks_per_sec; /* unusable blocks per section */
1681 unsigned int segs_per_sec; /* segments per section */
1682 unsigned int secs_per_zone; /* sections per zone */
1683 unsigned int total_sections; /* total section count */
1684 unsigned int total_node_count; /* total node block count */
1685 unsigned int total_valid_node_count; /* valid node block count */
1686 int dir_level; /* directory level */
1687 int readdir_ra; /* readahead inode in readdir */
1688 u64 max_io_bytes; /* max io bytes to merge IOs */
1690 block_t user_block_count; /* # of user blocks */
1691 block_t total_valid_block_count; /* # of valid blocks */
1692 block_t discard_blks; /* discard command candidats */
1693 block_t last_valid_block_count; /* for recovery */
1694 block_t reserved_blocks; /* configurable reserved blocks */
1695 block_t current_reserved_blocks; /* current reserved blocks */
1697 /* Additional tracking for no checkpoint mode */
1698 block_t unusable_block_count; /* # of blocks saved by last cp */
1700 unsigned int nquota_files; /* # of quota sysfile */
1701 struct f2fs_rwsem quota_sem; /* blocking cp for flags */
1703 /* # of pages, see count_type */
1704 atomic_t nr_pages[NR_COUNT_TYPE];
1705 /* # of allocated blocks */
1706 struct percpu_counter alloc_valid_block_count;
1707 /* # of node block writes as roll forward recovery */
1708 struct percpu_counter rf_node_block_count;
1710 /* writeback control */
1711 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1713 /* valid inode count */
1714 struct percpu_counter total_valid_inode_count;
1716 struct f2fs_mount_info mount_opt; /* mount options */
1718 /* for cleaning operations */
1719 struct f2fs_rwsem gc_lock; /*
1720 * semaphore for GC, avoid
1721 * race between GC and GC or CP
1723 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1724 struct atgc_management am; /* atgc management */
1725 unsigned int cur_victim_sec; /* current victim section num */
1726 unsigned int gc_mode; /* current GC state */
1727 unsigned int next_victim_seg[2]; /* next segment in victim section */
1728 spinlock_t gc_urgent_high_lock;
1729 bool gc_urgent_high_limited; /* indicates having limited trial count */
1730 unsigned int gc_urgent_high_remaining; /* remaining trial count for GC_URGENT_HIGH */
1732 /* for skip statistic */
1733 unsigned int atomic_files; /* # of opened atomic file */
1734 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1736 /* threshold for gc trials on pinned files */
1737 u64 gc_pin_file_threshold;
1738 struct f2fs_rwsem pin_sem;
1740 /* maximum # of trials to find a victim segment for SSR and GC */
1741 unsigned int max_victim_search;
1742 /* migration granularity of garbage collection, unit: segment */
1743 unsigned int migration_granularity;
1746 * for stat information.
1747 * one is for the LFS mode, and the other is for the SSR mode.
1749 #ifdef CONFIG_F2FS_STAT_FS
1750 struct f2fs_stat_info *stat_info; /* FS status information */
1751 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1752 unsigned int segment_count[2]; /* # of allocated segments */
1753 unsigned int block_count[2]; /* # of allocated blocks */
1754 atomic_t inplace_count; /* # of inplace update */
1755 atomic64_t total_hit_ext; /* # of lookup extent cache */
1756 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1757 atomic64_t read_hit_largest; /* # of hit largest extent node */
1758 atomic64_t read_hit_cached; /* # of hit cached extent node */
1759 atomic_t inline_xattr; /* # of inline_xattr inodes */
1760 atomic_t inline_inode; /* # of inline_data inodes */
1761 atomic_t inline_dir; /* # of inline_dentry inodes */
1762 atomic_t compr_inode; /* # of compressed inodes */
1763 atomic64_t compr_blocks; /* # of compressed blocks */
1764 atomic_t max_aw_cnt; /* max # of atomic writes */
1765 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1766 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1767 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1769 spinlock_t stat_lock; /* lock for stat operations */
1771 /* to attach REQ_META|REQ_FUA flags */
1772 unsigned int data_io_flag;
1773 unsigned int node_io_flag;
1775 /* For sysfs support */
1776 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1777 struct completion s_kobj_unregister;
1779 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1780 struct completion s_stat_kobj_unregister;
1782 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1783 struct completion s_feature_list_kobj_unregister;
1785 /* For shrinker support */
1786 struct list_head s_list;
1787 struct mutex umount_mutex;
1788 unsigned int shrinker_run_no;
1790 /* For multi devices */
1791 int s_ndevs; /* number of devices */
1792 struct f2fs_dev_info *devs; /* for device list */
1793 unsigned int dirty_device; /* for checkpoint data flush */
1794 spinlock_t dev_lock; /* protect dirty_device */
1795 bool aligned_blksize; /* all devices has the same logical blksize */
1797 /* For write statistics */
1798 u64 sectors_written_start;
1801 /* Reference to checksum algorithm driver via cryptoapi */
1802 struct crypto_shash *s_chksum_driver;
1804 /* Precomputed FS UUID checksum for seeding other checksums */
1805 __u32 s_chksum_seed;
1807 struct workqueue_struct *post_read_wq; /* post read workqueue */
1809 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1810 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1812 /* For reclaimed segs statistics per each GC mode */
1813 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1814 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1816 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1818 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1819 int max_fragment_hole; /* max hole size for block fragmentation mode */
1821 /* For atomic write statistics */
1822 atomic64_t current_atomic_write;
1823 s64 peak_atomic_write;
1824 u64 committed_atomic_block;
1825 u64 revoked_atomic_block;
1827 #ifdef CONFIG_F2FS_FS_COMPRESSION
1828 struct kmem_cache *page_array_slab; /* page array entry */
1829 unsigned int page_array_slab_size; /* default page array slab size */
1831 /* For runtime compression statistics */
1832 u64 compr_written_block;
1833 u64 compr_saved_block;
1834 u32 compr_new_inode;
1836 /* For compressed block cache */
1837 struct inode *compress_inode; /* cache compressed blocks */
1838 unsigned int compress_percent; /* cache page percentage */
1839 unsigned int compress_watermark; /* cache page watermark */
1840 atomic_t compress_page_hit; /* cache hit count */
1843 #ifdef CONFIG_F2FS_IOSTAT
1844 /* For app/fs IO statistics */
1845 spinlock_t iostat_lock;
1846 unsigned long long rw_iostat[NR_IO_TYPE];
1847 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1849 unsigned long iostat_next_period;
1850 unsigned int iostat_period_ms;
1852 /* For io latency related statistics info in one iostat period */
1853 spinlock_t iostat_lat_lock;
1854 struct iostat_lat_info *iostat_io_lat;
1858 #ifdef CONFIG_F2FS_FAULT_INJECTION
1859 #define f2fs_show_injection_info(sbi, type) \
1860 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1861 KERN_INFO, sbi->sb->s_id, \
1862 f2fs_fault_name[type], \
1863 __func__, __builtin_return_address(0))
1864 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1866 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1868 if (!ffi->inject_rate)
1871 if (!IS_FAULT_SET(ffi, type))
1874 atomic_inc(&ffi->inject_ops);
1875 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1876 atomic_set(&ffi->inject_ops, 0);
1882 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1883 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1890 * Test if the mounted volume is a multi-device volume.
1891 * - For a single regular disk volume, sbi->s_ndevs is 0.
1892 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1893 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1895 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1897 return sbi->s_ndevs > 1;
1900 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1902 unsigned long now = jiffies;
1904 sbi->last_time[type] = now;
1906 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1907 if (type == REQ_TIME) {
1908 sbi->last_time[DISCARD_TIME] = now;
1909 sbi->last_time[GC_TIME] = now;
1913 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1915 unsigned long interval = sbi->interval_time[type] * HZ;
1917 return time_after(jiffies, sbi->last_time[type] + interval);
1920 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1923 unsigned long interval = sbi->interval_time[type] * HZ;
1924 unsigned int wait_ms = 0;
1927 delta = (sbi->last_time[type] + interval) - jiffies;
1929 wait_ms = jiffies_to_msecs(delta);
1937 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1938 const void *address, unsigned int length)
1941 struct shash_desc shash;
1946 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1948 desc.shash.tfm = sbi->s_chksum_driver;
1949 *(u32 *)desc.ctx = crc;
1951 err = crypto_shash_update(&desc.shash, address, length);
1954 return *(u32 *)desc.ctx;
1957 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1958 unsigned int length)
1960 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1963 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1964 void *buf, size_t buf_size)
1966 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1969 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1970 const void *address, unsigned int length)
1972 return __f2fs_crc32(sbi, crc, address, length);
1975 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1977 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1980 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1982 return sb->s_fs_info;
1985 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1987 return F2FS_SB(inode->i_sb);
1990 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1992 return F2FS_I_SB(mapping->host);
1995 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1997 return F2FS_M_SB(page_file_mapping(page));
2000 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
2002 return (struct f2fs_super_block *)(sbi->raw_super);
2005 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
2007 return (struct f2fs_checkpoint *)(sbi->ckpt);
2010 static inline struct f2fs_node *F2FS_NODE(struct page *page)
2012 return (struct f2fs_node *)page_address(page);
2015 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
2017 return &((struct f2fs_node *)page_address(page))->i;
2020 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
2022 return (struct f2fs_nm_info *)(sbi->nm_info);
2025 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
2027 return (struct f2fs_sm_info *)(sbi->sm_info);
2030 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
2032 return (struct sit_info *)(SM_I(sbi)->sit_info);
2035 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
2037 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
2040 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
2042 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
2045 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
2047 return sbi->meta_inode->i_mapping;
2050 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2052 return sbi->node_inode->i_mapping;
2055 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2057 return test_bit(type, &sbi->s_flag);
2060 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2062 set_bit(type, &sbi->s_flag);
2065 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2067 clear_bit(type, &sbi->s_flag);
2070 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2072 return le64_to_cpu(cp->checkpoint_ver);
2075 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2077 if (type < F2FS_MAX_QUOTAS)
2078 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2082 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2084 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2085 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2088 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2090 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2092 return ckpt_flags & f;
2095 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2097 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2100 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2102 unsigned int ckpt_flags;
2104 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2106 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2109 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2111 unsigned long flags;
2113 spin_lock_irqsave(&sbi->cp_lock, flags);
2114 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2115 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2118 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2120 unsigned int ckpt_flags;
2122 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2124 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2127 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2129 unsigned long flags;
2131 spin_lock_irqsave(&sbi->cp_lock, flags);
2132 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2133 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2136 #define init_f2fs_rwsem(sem) \
2138 static struct lock_class_key __key; \
2140 __init_f2fs_rwsem((sem), #sem, &__key); \
2143 static inline void __init_f2fs_rwsem(struct f2fs_rwsem *sem,
2144 const char *sem_name, struct lock_class_key *key)
2146 __init_rwsem(&sem->internal_rwsem, sem_name, key);
2147 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2148 init_waitqueue_head(&sem->read_waiters);
2152 static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
2154 return rwsem_is_locked(&sem->internal_rwsem);
2157 static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
2159 return rwsem_is_contended(&sem->internal_rwsem);
2162 static inline void f2fs_down_read(struct f2fs_rwsem *sem)
2164 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2165 wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
2167 down_read(&sem->internal_rwsem);
2171 static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
2173 return down_read_trylock(&sem->internal_rwsem);
2176 #ifdef CONFIG_DEBUG_LOCK_ALLOC
2177 static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
2179 down_read_nested(&sem->internal_rwsem, subclass);
2182 #define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
2185 static inline void f2fs_up_read(struct f2fs_rwsem *sem)
2187 up_read(&sem->internal_rwsem);
2190 static inline void f2fs_down_write(struct f2fs_rwsem *sem)
2192 down_write(&sem->internal_rwsem);
2195 static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
2197 return down_write_trylock(&sem->internal_rwsem);
2200 static inline void f2fs_up_write(struct f2fs_rwsem *sem)
2202 up_write(&sem->internal_rwsem);
2203 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2204 wake_up_all(&sem->read_waiters);
2208 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2210 f2fs_down_read(&sbi->cp_rwsem);
2213 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2215 if (time_to_inject(sbi, FAULT_LOCK_OP)) {
2216 f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
2219 return f2fs_down_read_trylock(&sbi->cp_rwsem);
2222 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2224 f2fs_up_read(&sbi->cp_rwsem);
2227 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2229 f2fs_down_write(&sbi->cp_rwsem);
2232 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2234 f2fs_up_write(&sbi->cp_rwsem);
2237 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2239 int reason = CP_SYNC;
2241 if (test_opt(sbi, FASTBOOT))
2242 reason = CP_FASTBOOT;
2243 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2248 static inline bool __remain_node_summaries(int reason)
2250 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2253 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2255 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2256 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2260 * Check whether the inode has blocks or not
2262 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2264 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2266 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2269 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2271 return ofs == XATTR_NODE_OFFSET;
2274 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2275 struct inode *inode, bool cap)
2279 if (!test_opt(sbi, RESERVE_ROOT))
2281 if (IS_NOQUOTA(inode))
2283 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2285 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2286 in_group_p(F2FS_OPTION(sbi).s_resgid))
2288 if (cap && capable(CAP_SYS_RESOURCE))
2293 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2294 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2295 struct inode *inode, blkcnt_t *count)
2297 blkcnt_t diff = 0, release = 0;
2298 block_t avail_user_block_count;
2301 ret = dquot_reserve_block(inode, *count);
2305 if (time_to_inject(sbi, FAULT_BLOCK)) {
2306 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2312 * let's increase this in prior to actual block count change in order
2313 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2315 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2317 spin_lock(&sbi->stat_lock);
2318 sbi->total_valid_block_count += (block_t)(*count);
2319 avail_user_block_count = sbi->user_block_count -
2320 sbi->current_reserved_blocks;
2322 if (!__allow_reserved_blocks(sbi, inode, true))
2323 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2325 if (F2FS_IO_ALIGNED(sbi))
2326 avail_user_block_count -= sbi->blocks_per_seg *
2327 SM_I(sbi)->additional_reserved_segments;
2329 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2330 if (avail_user_block_count > sbi->unusable_block_count)
2331 avail_user_block_count -= sbi->unusable_block_count;
2333 avail_user_block_count = 0;
2335 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2336 diff = sbi->total_valid_block_count - avail_user_block_count;
2341 sbi->total_valid_block_count -= diff;
2343 spin_unlock(&sbi->stat_lock);
2347 spin_unlock(&sbi->stat_lock);
2349 if (unlikely(release)) {
2350 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2351 dquot_release_reservation_block(inode, release);
2353 f2fs_i_blocks_write(inode, *count, true, true);
2357 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2359 dquot_release_reservation_block(inode, release);
2364 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2366 #define f2fs_err(sbi, fmt, ...) \
2367 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2368 #define f2fs_warn(sbi, fmt, ...) \
2369 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2370 #define f2fs_notice(sbi, fmt, ...) \
2371 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2372 #define f2fs_info(sbi, fmt, ...) \
2373 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2374 #define f2fs_debug(sbi, fmt, ...) \
2375 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2377 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2378 struct inode *inode,
2381 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2383 spin_lock(&sbi->stat_lock);
2384 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2385 sbi->total_valid_block_count -= (block_t)count;
2386 if (sbi->reserved_blocks &&
2387 sbi->current_reserved_blocks < sbi->reserved_blocks)
2388 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2389 sbi->current_reserved_blocks + count);
2390 spin_unlock(&sbi->stat_lock);
2391 if (unlikely(inode->i_blocks < sectors)) {
2392 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2394 (unsigned long long)inode->i_blocks,
2395 (unsigned long long)sectors);
2396 set_sbi_flag(sbi, SBI_NEED_FSCK);
2399 f2fs_i_blocks_write(inode, count, false, true);
2402 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2404 atomic_inc(&sbi->nr_pages[count_type]);
2406 if (count_type == F2FS_DIRTY_DENTS ||
2407 count_type == F2FS_DIRTY_NODES ||
2408 count_type == F2FS_DIRTY_META ||
2409 count_type == F2FS_DIRTY_QDATA ||
2410 count_type == F2FS_DIRTY_IMETA)
2411 set_sbi_flag(sbi, SBI_IS_DIRTY);
2414 static inline void inode_inc_dirty_pages(struct inode *inode)
2416 atomic_inc(&F2FS_I(inode)->dirty_pages);
2417 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2418 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2419 if (IS_NOQUOTA(inode))
2420 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2423 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2425 atomic_dec(&sbi->nr_pages[count_type]);
2428 static inline void inode_dec_dirty_pages(struct inode *inode)
2430 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2431 !S_ISLNK(inode->i_mode))
2434 atomic_dec(&F2FS_I(inode)->dirty_pages);
2435 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2436 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2437 if (IS_NOQUOTA(inode))
2438 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2441 static inline void inc_atomic_write_cnt(struct inode *inode)
2443 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2444 struct f2fs_inode_info *fi = F2FS_I(inode);
2447 fi->atomic_write_cnt++;
2448 atomic64_inc(&sbi->current_atomic_write);
2449 current_write = atomic64_read(&sbi->current_atomic_write);
2450 if (current_write > sbi->peak_atomic_write)
2451 sbi->peak_atomic_write = current_write;
2454 static inline void release_atomic_write_cnt(struct inode *inode)
2456 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2457 struct f2fs_inode_info *fi = F2FS_I(inode);
2459 atomic64_sub(fi->atomic_write_cnt, &sbi->current_atomic_write);
2460 fi->atomic_write_cnt = 0;
2463 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2465 return atomic_read(&sbi->nr_pages[count_type]);
2468 static inline int get_dirty_pages(struct inode *inode)
2470 return atomic_read(&F2FS_I(inode)->dirty_pages);
2473 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2475 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2476 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2477 sbi->log_blocks_per_seg;
2479 return segs / sbi->segs_per_sec;
2482 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2484 return sbi->total_valid_block_count;
2487 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2489 return sbi->discard_blks;
2492 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2494 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2496 /* return NAT or SIT bitmap */
2497 if (flag == NAT_BITMAP)
2498 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2499 else if (flag == SIT_BITMAP)
2500 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2505 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2507 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2510 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2512 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2513 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2516 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2517 offset = (flag == SIT_BITMAP) ?
2518 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2520 * if large_nat_bitmap feature is enabled, leave checksum
2521 * protection for all nat/sit bitmaps.
2523 return tmp_ptr + offset + sizeof(__le32);
2526 if (__cp_payload(sbi) > 0) {
2527 if (flag == NAT_BITMAP)
2528 return &ckpt->sit_nat_version_bitmap;
2530 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2532 offset = (flag == NAT_BITMAP) ?
2533 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2534 return tmp_ptr + offset;
2538 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2540 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2542 if (sbi->cur_cp_pack == 2)
2543 start_addr += sbi->blocks_per_seg;
2547 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2549 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2551 if (sbi->cur_cp_pack == 1)
2552 start_addr += sbi->blocks_per_seg;
2556 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2558 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2561 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2563 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2566 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2567 struct inode *inode, bool is_inode)
2569 block_t valid_block_count;
2570 unsigned int valid_node_count, user_block_count;
2575 err = dquot_alloc_inode(inode);
2580 err = dquot_reserve_block(inode, 1);
2585 if (time_to_inject(sbi, FAULT_BLOCK)) {
2586 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2590 spin_lock(&sbi->stat_lock);
2592 valid_block_count = sbi->total_valid_block_count +
2593 sbi->current_reserved_blocks + 1;
2595 if (!__allow_reserved_blocks(sbi, inode, false))
2596 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2598 if (F2FS_IO_ALIGNED(sbi))
2599 valid_block_count += sbi->blocks_per_seg *
2600 SM_I(sbi)->additional_reserved_segments;
2602 user_block_count = sbi->user_block_count;
2603 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2604 user_block_count -= sbi->unusable_block_count;
2606 if (unlikely(valid_block_count > user_block_count)) {
2607 spin_unlock(&sbi->stat_lock);
2611 valid_node_count = sbi->total_valid_node_count + 1;
2612 if (unlikely(valid_node_count > sbi->total_node_count)) {
2613 spin_unlock(&sbi->stat_lock);
2617 sbi->total_valid_node_count++;
2618 sbi->total_valid_block_count++;
2619 spin_unlock(&sbi->stat_lock);
2623 f2fs_mark_inode_dirty_sync(inode, true);
2625 f2fs_i_blocks_write(inode, 1, true, true);
2628 percpu_counter_inc(&sbi->alloc_valid_block_count);
2634 dquot_free_inode(inode);
2636 dquot_release_reservation_block(inode, 1);
2641 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2642 struct inode *inode, bool is_inode)
2644 spin_lock(&sbi->stat_lock);
2646 if (unlikely(!sbi->total_valid_block_count ||
2647 !sbi->total_valid_node_count)) {
2648 f2fs_warn(sbi, "dec_valid_node_count: inconsistent block counts, total_valid_block:%u, total_valid_node:%u",
2649 sbi->total_valid_block_count,
2650 sbi->total_valid_node_count);
2651 set_sbi_flag(sbi, SBI_NEED_FSCK);
2653 sbi->total_valid_block_count--;
2654 sbi->total_valid_node_count--;
2657 if (sbi->reserved_blocks &&
2658 sbi->current_reserved_blocks < sbi->reserved_blocks)
2659 sbi->current_reserved_blocks++;
2661 spin_unlock(&sbi->stat_lock);
2664 dquot_free_inode(inode);
2666 if (unlikely(inode->i_blocks == 0)) {
2667 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2669 (unsigned long long)inode->i_blocks);
2670 set_sbi_flag(sbi, SBI_NEED_FSCK);
2673 f2fs_i_blocks_write(inode, 1, false, true);
2677 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2679 return sbi->total_valid_node_count;
2682 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2684 percpu_counter_inc(&sbi->total_valid_inode_count);
2687 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2689 percpu_counter_dec(&sbi->total_valid_inode_count);
2692 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2694 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2697 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2698 pgoff_t index, bool for_write)
2703 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2705 page = find_get_page_flags(mapping, index,
2706 FGP_LOCK | FGP_ACCESSED);
2708 page = find_lock_page(mapping, index);
2712 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2713 f2fs_show_injection_info(F2FS_M_SB(mapping),
2720 return grab_cache_page(mapping, index);
2722 flags = memalloc_nofs_save();
2723 page = grab_cache_page_write_begin(mapping, index);
2724 memalloc_nofs_restore(flags);
2729 static inline struct page *f2fs_pagecache_get_page(
2730 struct address_space *mapping, pgoff_t index,
2731 int fgp_flags, gfp_t gfp_mask)
2733 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2734 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2738 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2741 static inline void f2fs_put_page(struct page *page, int unlock)
2747 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2753 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2756 f2fs_put_page(dn->node_page, 1);
2757 if (dn->inode_page && dn->node_page != dn->inode_page)
2758 f2fs_put_page(dn->inode_page, 0);
2759 dn->node_page = NULL;
2760 dn->inode_page = NULL;
2763 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2766 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2769 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2774 entry = kmem_cache_alloc(cachep, flags);
2776 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2780 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2781 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2784 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2786 if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
2787 f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
2791 return kmem_cache_alloc(cachep, flags);
2794 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2796 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2797 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2798 get_pages(sbi, F2FS_WB_CP_DATA) ||
2799 get_pages(sbi, F2FS_DIO_READ) ||
2800 get_pages(sbi, F2FS_DIO_WRITE))
2803 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2804 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2807 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2808 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2813 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2815 if (sbi->gc_mode == GC_URGENT_HIGH)
2818 if (is_inflight_io(sbi, type))
2821 if (sbi->gc_mode == GC_URGENT_MID)
2824 if (sbi->gc_mode == GC_URGENT_LOW &&
2825 (type == DISCARD_TIME || type == GC_TIME))
2828 return f2fs_time_over(sbi, type);
2831 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2832 unsigned long index, void *item)
2834 while (radix_tree_insert(root, index, item))
2838 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2840 static inline bool IS_INODE(struct page *page)
2842 struct f2fs_node *p = F2FS_NODE(page);
2844 return RAW_IS_INODE(p);
2847 static inline int offset_in_addr(struct f2fs_inode *i)
2849 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2850 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2853 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2855 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2858 static inline int f2fs_has_extra_attr(struct inode *inode);
2859 static inline block_t data_blkaddr(struct inode *inode,
2860 struct page *node_page, unsigned int offset)
2862 struct f2fs_node *raw_node;
2865 bool is_inode = IS_INODE(node_page);
2867 raw_node = F2FS_NODE(node_page);
2871 /* from GC path only */
2872 base = offset_in_addr(&raw_node->i);
2873 else if (f2fs_has_extra_attr(inode))
2874 base = get_extra_isize(inode);
2877 addr_array = blkaddr_in_node(raw_node);
2878 return le32_to_cpu(addr_array[base + offset]);
2881 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2883 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2886 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2891 mask = 1 << (7 - (nr & 0x07));
2892 return mask & *addr;
2895 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2900 mask = 1 << (7 - (nr & 0x07));
2904 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2909 mask = 1 << (7 - (nr & 0x07));
2913 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2919 mask = 1 << (7 - (nr & 0x07));
2925 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2931 mask = 1 << (7 - (nr & 0x07));
2937 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2942 mask = 1 << (7 - (nr & 0x07));
2947 * On-disk inode flags (f2fs_inode::i_flags)
2949 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2950 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2951 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2952 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2953 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2954 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2955 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2956 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2957 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2958 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2959 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2961 /* Flags that should be inherited by new inodes from their parent. */
2962 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2963 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2964 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2966 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2967 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2970 /* Flags that are appropriate for non-directories/regular files. */
2971 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2973 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2977 else if (S_ISREG(mode))
2978 return flags & F2FS_REG_FLMASK;
2980 return flags & F2FS_OTHER_FLMASK;
2983 static inline void __mark_inode_dirty_flag(struct inode *inode,
2987 case FI_INLINE_XATTR:
2988 case FI_INLINE_DATA:
2989 case FI_INLINE_DENTRY:
2995 case FI_INLINE_DOTS:
2997 case FI_COMPRESS_RELEASED:
2998 f2fs_mark_inode_dirty_sync(inode, true);
3002 static inline void set_inode_flag(struct inode *inode, int flag)
3004 set_bit(flag, F2FS_I(inode)->flags);
3005 __mark_inode_dirty_flag(inode, flag, true);
3008 static inline int is_inode_flag_set(struct inode *inode, int flag)
3010 return test_bit(flag, F2FS_I(inode)->flags);
3013 static inline void clear_inode_flag(struct inode *inode, int flag)
3015 clear_bit(flag, F2FS_I(inode)->flags);
3016 __mark_inode_dirty_flag(inode, flag, false);
3019 static inline bool f2fs_verity_in_progress(struct inode *inode)
3021 return IS_ENABLED(CONFIG_FS_VERITY) &&
3022 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
3025 static inline void set_acl_inode(struct inode *inode, umode_t mode)
3027 F2FS_I(inode)->i_acl_mode = mode;
3028 set_inode_flag(inode, FI_ACL_MODE);
3029 f2fs_mark_inode_dirty_sync(inode, false);
3032 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
3038 f2fs_mark_inode_dirty_sync(inode, true);
3041 static inline void f2fs_i_blocks_write(struct inode *inode,
3042 block_t diff, bool add, bool claim)
3044 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3045 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3047 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
3050 dquot_claim_block(inode, diff);
3052 dquot_alloc_block_nofail(inode, diff);
3054 dquot_free_block(inode, diff);
3057 f2fs_mark_inode_dirty_sync(inode, true);
3058 if (clean || recover)
3059 set_inode_flag(inode, FI_AUTO_RECOVER);
3062 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
3064 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3065 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3067 if (i_size_read(inode) == i_size)
3070 i_size_write(inode, i_size);
3071 f2fs_mark_inode_dirty_sync(inode, true);
3072 if (clean || recover)
3073 set_inode_flag(inode, FI_AUTO_RECOVER);
3076 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
3078 F2FS_I(inode)->i_current_depth = depth;
3079 f2fs_mark_inode_dirty_sync(inode, true);
3082 static inline void f2fs_i_gc_failures_write(struct inode *inode,
3085 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
3086 f2fs_mark_inode_dirty_sync(inode, true);
3089 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
3091 F2FS_I(inode)->i_xattr_nid = xnid;
3092 f2fs_mark_inode_dirty_sync(inode, true);
3095 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
3097 F2FS_I(inode)->i_pino = pino;
3098 f2fs_mark_inode_dirty_sync(inode, true);
3101 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
3103 struct f2fs_inode_info *fi = F2FS_I(inode);
3105 if (ri->i_inline & F2FS_INLINE_XATTR)
3106 set_bit(FI_INLINE_XATTR, fi->flags);
3107 if (ri->i_inline & F2FS_INLINE_DATA)
3108 set_bit(FI_INLINE_DATA, fi->flags);
3109 if (ri->i_inline & F2FS_INLINE_DENTRY)
3110 set_bit(FI_INLINE_DENTRY, fi->flags);
3111 if (ri->i_inline & F2FS_DATA_EXIST)
3112 set_bit(FI_DATA_EXIST, fi->flags);
3113 if (ri->i_inline & F2FS_INLINE_DOTS)
3114 set_bit(FI_INLINE_DOTS, fi->flags);
3115 if (ri->i_inline & F2FS_EXTRA_ATTR)
3116 set_bit(FI_EXTRA_ATTR, fi->flags);
3117 if (ri->i_inline & F2FS_PIN_FILE)
3118 set_bit(FI_PIN_FILE, fi->flags);
3119 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
3120 set_bit(FI_COMPRESS_RELEASED, fi->flags);
3123 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
3127 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
3128 ri->i_inline |= F2FS_INLINE_XATTR;
3129 if (is_inode_flag_set(inode, FI_INLINE_DATA))
3130 ri->i_inline |= F2FS_INLINE_DATA;
3131 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
3132 ri->i_inline |= F2FS_INLINE_DENTRY;
3133 if (is_inode_flag_set(inode, FI_DATA_EXIST))
3134 ri->i_inline |= F2FS_DATA_EXIST;
3135 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
3136 ri->i_inline |= F2FS_INLINE_DOTS;
3137 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
3138 ri->i_inline |= F2FS_EXTRA_ATTR;
3139 if (is_inode_flag_set(inode, FI_PIN_FILE))
3140 ri->i_inline |= F2FS_PIN_FILE;
3141 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
3142 ri->i_inline |= F2FS_COMPRESS_RELEASED;
3145 static inline int f2fs_has_extra_attr(struct inode *inode)
3147 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3150 static inline int f2fs_has_inline_xattr(struct inode *inode)
3152 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3155 static inline int f2fs_compressed_file(struct inode *inode)
3157 return S_ISREG(inode->i_mode) &&
3158 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3161 static inline bool f2fs_need_compress_data(struct inode *inode)
3163 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3165 if (!f2fs_compressed_file(inode))
3168 if (compress_mode == COMPR_MODE_FS)
3170 else if (compress_mode == COMPR_MODE_USER &&
3171 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3177 static inline unsigned int addrs_per_inode(struct inode *inode)
3179 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3180 get_inline_xattr_addrs(inode);
3182 if (!f2fs_compressed_file(inode))
3184 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3187 static inline unsigned int addrs_per_block(struct inode *inode)
3189 if (!f2fs_compressed_file(inode))
3190 return DEF_ADDRS_PER_BLOCK;
3191 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3194 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3196 struct f2fs_inode *ri = F2FS_INODE(page);
3198 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3199 get_inline_xattr_addrs(inode)]);
3202 static inline int inline_xattr_size(struct inode *inode)
3204 if (f2fs_has_inline_xattr(inode))
3205 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3210 * Notice: check inline_data flag without inode page lock is unsafe.
3211 * It could change at any time by f2fs_convert_inline_page().
3213 static inline int f2fs_has_inline_data(struct inode *inode)
3215 return is_inode_flag_set(inode, FI_INLINE_DATA);
3218 static inline int f2fs_exist_data(struct inode *inode)
3220 return is_inode_flag_set(inode, FI_DATA_EXIST);
3223 static inline int f2fs_has_inline_dots(struct inode *inode)
3225 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3228 static inline int f2fs_is_mmap_file(struct inode *inode)
3230 return is_inode_flag_set(inode, FI_MMAP_FILE);
3233 static inline bool f2fs_is_pinned_file(struct inode *inode)
3235 return is_inode_flag_set(inode, FI_PIN_FILE);
3238 static inline bool f2fs_is_atomic_file(struct inode *inode)
3240 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3243 static inline bool f2fs_is_cow_file(struct inode *inode)
3245 return is_inode_flag_set(inode, FI_COW_FILE);
3248 static inline bool f2fs_is_first_block_written(struct inode *inode)
3250 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3253 static inline bool f2fs_is_drop_cache(struct inode *inode)
3255 return is_inode_flag_set(inode, FI_DROP_CACHE);
3258 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3260 struct f2fs_inode *ri = F2FS_INODE(page);
3261 int extra_size = get_extra_isize(inode);
3263 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3266 static inline int f2fs_has_inline_dentry(struct inode *inode)
3268 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3271 static inline int is_file(struct inode *inode, int type)
3273 return F2FS_I(inode)->i_advise & type;
3276 static inline void set_file(struct inode *inode, int type)
3278 if (is_file(inode, type))
3280 F2FS_I(inode)->i_advise |= type;
3281 f2fs_mark_inode_dirty_sync(inode, true);
3284 static inline void clear_file(struct inode *inode, int type)
3286 if (!is_file(inode, type))
3288 F2FS_I(inode)->i_advise &= ~type;
3289 f2fs_mark_inode_dirty_sync(inode, true);
3292 static inline bool f2fs_is_time_consistent(struct inode *inode)
3294 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3296 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3298 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3300 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3301 &F2FS_I(inode)->i_crtime))
3306 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3311 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3313 spin_lock(&sbi->inode_lock[DIRTY_META]);
3314 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3315 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3318 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3319 file_keep_isize(inode) ||
3320 i_size_read(inode) & ~PAGE_MASK)
3323 if (!f2fs_is_time_consistent(inode))
3326 spin_lock(&F2FS_I(inode)->i_size_lock);
3327 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3328 spin_unlock(&F2FS_I(inode)->i_size_lock);
3333 static inline bool f2fs_readonly(struct super_block *sb)
3335 return sb_rdonly(sb);
3338 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3340 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3343 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3345 if (len == 1 && name[0] == '.')
3348 if (len == 2 && name[0] == '.' && name[1] == '.')
3354 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3355 size_t size, gfp_t flags)
3357 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3358 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3362 return kmalloc(size, flags);
3365 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3366 size_t size, gfp_t flags)
3368 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3371 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3372 size_t size, gfp_t flags)
3374 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3375 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3379 return kvmalloc(size, flags);
3382 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3383 size_t size, gfp_t flags)
3385 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3388 static inline int get_extra_isize(struct inode *inode)
3390 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3393 static inline int get_inline_xattr_addrs(struct inode *inode)
3395 return F2FS_I(inode)->i_inline_xattr_size;
3398 #define f2fs_get_inode_mode(i) \
3399 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3400 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3402 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3403 (offsetof(struct f2fs_inode, i_extra_end) - \
3404 offsetof(struct f2fs_inode, i_extra_isize)) \
3406 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3407 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3408 ((offsetof(typeof(*(f2fs_inode)), field) + \
3409 sizeof((f2fs_inode)->field)) \
3410 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3412 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3414 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3416 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3417 block_t blkaddr, int type);
3418 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3419 block_t blkaddr, int type)
3421 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3422 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3424 f2fs_bug_on(sbi, 1);
3428 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3430 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3431 blkaddr == COMPRESS_ADDR)
3439 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3440 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3441 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3442 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3443 int f2fs_truncate(struct inode *inode);
3444 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3445 struct kstat *stat, u32 request_mask, unsigned int flags);
3446 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3447 struct iattr *attr);
3448 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3449 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3450 int f2fs_precache_extents(struct inode *inode);
3451 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3452 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3453 struct dentry *dentry, struct fileattr *fa);
3454 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3455 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3456 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3457 int f2fs_pin_file_control(struct inode *inode, bool inc);
3462 void f2fs_set_inode_flags(struct inode *inode);
3463 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3464 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3465 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3466 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3467 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3468 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3469 void f2fs_update_inode_page(struct inode *inode);
3470 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3471 void f2fs_evict_inode(struct inode *inode);
3472 void f2fs_handle_failed_inode(struct inode *inode);
3477 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3478 bool hot, bool set);
3479 struct dentry *f2fs_get_parent(struct dentry *child);
3480 int f2fs_get_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
3481 struct inode **new_inode);
3486 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3487 int f2fs_init_casefolded_name(const struct inode *dir,
3488 struct f2fs_filename *fname);
3489 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3490 int lookup, struct f2fs_filename *fname);
3491 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3492 struct f2fs_filename *fname);
3493 void f2fs_free_filename(struct f2fs_filename *fname);
3494 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3495 const struct f2fs_filename *fname, int *max_slots);
3496 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3497 unsigned int start_pos, struct fscrypt_str *fstr);
3498 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3499 struct f2fs_dentry_ptr *d);
3500 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3501 const struct f2fs_filename *fname, struct page *dpage);
3502 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3503 unsigned int current_depth);
3504 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3505 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3506 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3507 const struct f2fs_filename *fname,
3508 struct page **res_page);
3509 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3510 const struct qstr *child, struct page **res_page);
3511 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3512 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3513 struct page **page);
3514 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3515 struct page *page, struct inode *inode);
3516 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3517 const struct f2fs_filename *fname);
3518 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3519 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3520 unsigned int bit_pos);
3521 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3522 struct inode *inode, nid_t ino, umode_t mode);
3523 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3524 struct inode *inode, nid_t ino, umode_t mode);
3525 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3526 struct inode *inode, nid_t ino, umode_t mode);
3527 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3528 struct inode *dir, struct inode *inode);
3529 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3530 bool f2fs_empty_dir(struct inode *dir);
3532 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3534 if (fscrypt_is_nokey_name(dentry))
3536 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3537 inode, inode->i_ino, inode->i_mode);
3543 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3544 void f2fs_inode_synced(struct inode *inode);
3545 int f2fs_dquot_initialize(struct inode *inode);
3546 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3547 int f2fs_quota_sync(struct super_block *sb, int type);
3548 loff_t max_file_blocks(struct inode *inode);
3549 void f2fs_quota_off_umount(struct super_block *sb);
3550 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3551 int f2fs_sync_fs(struct super_block *sb, int sync);
3552 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3557 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3564 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3565 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3566 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3567 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3568 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3569 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3570 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3571 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3572 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3573 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3574 struct node_info *ni, bool checkpoint_context);
3575 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3576 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3577 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3578 int f2fs_truncate_xattr_node(struct inode *inode);
3579 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3580 unsigned int seq_id);
3581 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3582 int f2fs_remove_inode_page(struct inode *inode);
3583 struct page *f2fs_new_inode_page(struct inode *inode);
3584 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3585 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3586 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3587 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3588 int f2fs_move_node_page(struct page *node_page, int gc_type);
3589 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3590 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3591 struct writeback_control *wbc, bool atomic,
3592 unsigned int *seq_id);
3593 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3594 struct writeback_control *wbc,
3595 bool do_balance, enum iostat_type io_type);
3596 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3597 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3598 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3599 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3600 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3601 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3602 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3603 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3604 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3605 unsigned int segno, struct f2fs_summary_block *sum);
3606 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3607 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3608 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3609 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3610 int __init f2fs_create_node_manager_caches(void);
3611 void f2fs_destroy_node_manager_caches(void);
3616 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3617 int f2fs_commit_atomic_write(struct inode *inode);
3618 void f2fs_abort_atomic_write(struct inode *inode, bool clean);
3619 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3620 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3621 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3622 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3623 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3624 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3625 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3626 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3627 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3628 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3629 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3630 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3631 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3632 struct cp_control *cpc);
3633 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3634 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3635 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3636 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3637 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3638 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3639 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3640 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3641 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3642 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3643 unsigned int *newseg, bool new_sec, int dir);
3644 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3645 unsigned int start, unsigned int end);
3646 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3647 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3648 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3649 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3650 struct cp_control *cpc);
3651 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3652 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3654 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3655 enum iostat_type io_type);
3656 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3657 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3658 struct f2fs_io_info *fio);
3659 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3660 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3661 block_t old_blkaddr, block_t new_blkaddr,
3662 bool recover_curseg, bool recover_newaddr,
3664 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3665 block_t old_addr, block_t new_addr,
3666 unsigned char version, bool recover_curseg,
3667 bool recover_newaddr);
3668 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3669 block_t old_blkaddr, block_t *new_blkaddr,
3670 struct f2fs_summary *sum, int type,
3671 struct f2fs_io_info *fio);
3672 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3673 block_t blkaddr, unsigned int blkcnt);
3674 void f2fs_wait_on_page_writeback(struct page *page,
3675 enum page_type type, bool ordered, bool locked);
3676 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3677 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3679 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3680 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3681 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3682 unsigned int val, int alloc);
3683 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3684 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3685 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3686 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3687 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3688 int __init f2fs_create_segment_manager_caches(void);
3689 void f2fs_destroy_segment_manager_caches(void);
3690 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3691 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3692 unsigned int segno);
3693 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3694 unsigned int segno);
3696 #define DEF_FRAGMENT_SIZE 4
3697 #define MIN_FRAGMENT_SIZE 1
3698 #define MAX_FRAGMENT_SIZE 512
3700 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3702 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3703 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3709 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3710 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3711 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3712 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3713 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3714 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3715 block_t blkaddr, int type);
3716 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3717 int type, bool sync);
3718 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index,
3719 unsigned int ra_blocks);
3720 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3721 long nr_to_write, enum iostat_type io_type);
3722 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3723 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3724 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3725 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3726 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3727 unsigned int devidx, int type);
3728 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3729 unsigned int devidx, int type);
3730 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3731 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3732 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3733 void f2fs_add_orphan_inode(struct inode *inode);
3734 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3735 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3736 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3737 void f2fs_update_dirty_folio(struct inode *inode, struct folio *folio);
3738 void f2fs_remove_dirty_inode(struct inode *inode);
3739 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3740 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3741 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3742 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3743 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3744 int __init f2fs_create_checkpoint_caches(void);
3745 void f2fs_destroy_checkpoint_caches(void);
3746 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3747 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3748 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3749 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3754 int __init f2fs_init_bioset(void);
3755 void f2fs_destroy_bioset(void);
3756 int f2fs_init_bio_entry_cache(void);
3757 void f2fs_destroy_bio_entry_cache(void);
3758 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3759 struct bio *bio, enum page_type type);
3760 int f2fs_init_write_merge_io(struct f2fs_sb_info *sbi);
3761 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3762 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3763 struct inode *inode, struct page *page,
3764 nid_t ino, enum page_type type);
3765 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3766 struct bio **bio, struct page *page);
3767 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3768 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3769 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3770 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3771 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3772 block_t blk_addr, sector_t *sector);
3773 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3774 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3775 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3776 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3777 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3778 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3779 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3780 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3781 blk_opf_t op_flags, bool for_write);
3782 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3783 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3785 struct page *f2fs_get_new_data_page(struct inode *inode,
3786 struct page *ipage, pgoff_t index, bool new_i_size);
3787 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3788 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3789 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3790 int create, int flag);
3791 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3792 u64 start, u64 len);
3793 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3794 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3795 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3796 int f2fs_write_single_data_page(struct page *page, int *submitted,
3797 struct bio **bio, sector_t *last_block,
3798 struct writeback_control *wbc,
3799 enum iostat_type io_type,
3800 int compr_blocks, bool allow_balance);
3801 void f2fs_write_failed(struct inode *inode, loff_t to);
3802 void f2fs_invalidate_folio(struct folio *folio, size_t offset, size_t length);
3803 bool f2fs_release_folio(struct folio *folio, gfp_t wait);
3804 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3805 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3806 int f2fs_init_post_read_processing(void);
3807 void f2fs_destroy_post_read_processing(void);
3808 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3809 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3810 extern const struct iomap_ops f2fs_iomap_ops;
3815 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3816 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3817 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3818 int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_control *gc_control);
3819 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3820 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3821 int __init f2fs_create_garbage_collection_cache(void);
3822 void f2fs_destroy_garbage_collection_cache(void);
3827 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3828 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3829 int __init f2fs_create_recovery_cache(void);
3830 void f2fs_destroy_recovery_cache(void);
3835 #ifdef CONFIG_F2FS_STAT_FS
3836 struct f2fs_stat_info {
3837 struct list_head stat_list;
3838 struct f2fs_sb_info *sbi;
3839 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3840 int main_area_segs, main_area_sections, main_area_zones;
3841 unsigned long long hit_largest, hit_cached, hit_rbtree;
3842 unsigned long long hit_total, total_ext;
3843 int ext_tree, zombie_tree, ext_node;
3844 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3845 int ndirty_data, ndirty_qdata;
3846 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3847 int nats, dirty_nats, sits, dirty_sits;
3848 int free_nids, avail_nids, alloc_nids;
3849 int total_count, utilization;
3850 int bg_gc, nr_wb_cp_data, nr_wb_data;
3851 int nr_rd_data, nr_rd_node, nr_rd_meta;
3852 int nr_dio_read, nr_dio_write;
3853 unsigned int io_skip_bggc, other_skip_bggc;
3854 int nr_flushing, nr_flushed, flush_list_empty;
3855 int nr_discarding, nr_discarded;
3857 unsigned int undiscard_blks;
3858 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3859 unsigned int cur_ckpt_time, peak_ckpt_time;
3860 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3862 unsigned long long compr_blocks;
3863 int aw_cnt, max_aw_cnt;
3864 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3865 unsigned int bimodal, avg_vblocks;
3866 int util_free, util_valid, util_invalid;
3867 int rsvd_segs, overp_segs;
3868 int dirty_count, node_pages, meta_pages, compress_pages;
3869 int compress_page_hit;
3870 int prefree_count, call_count, cp_count, bg_cp_count;
3871 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3872 int bg_node_segs, bg_data_segs;
3873 int tot_blks, data_blks, node_blks;
3874 int bg_data_blks, bg_node_blks;
3875 int curseg[NR_CURSEG_TYPE];
3876 int cursec[NR_CURSEG_TYPE];
3877 int curzone[NR_CURSEG_TYPE];
3878 unsigned int dirty_seg[NR_CURSEG_TYPE];
3879 unsigned int full_seg[NR_CURSEG_TYPE];
3880 unsigned int valid_blks[NR_CURSEG_TYPE];
3882 unsigned int meta_count[META_MAX];
3883 unsigned int segment_count[2];
3884 unsigned int block_count[2];
3885 unsigned int inplace_count;
3886 unsigned long long base_mem, cache_mem, page_mem;
3889 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3891 return (struct f2fs_stat_info *)sbi->stat_info;
3894 #define stat_inc_cp_count(si) ((si)->cp_count++)
3895 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3896 #define stat_inc_call_count(si) ((si)->call_count++)
3897 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3898 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3899 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3900 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3901 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3902 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3903 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3904 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3905 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3906 #define stat_inc_inline_xattr(inode) \
3908 if (f2fs_has_inline_xattr(inode)) \
3909 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3911 #define stat_dec_inline_xattr(inode) \
3913 if (f2fs_has_inline_xattr(inode)) \
3914 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3916 #define stat_inc_inline_inode(inode) \
3918 if (f2fs_has_inline_data(inode)) \
3919 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3921 #define stat_dec_inline_inode(inode) \
3923 if (f2fs_has_inline_data(inode)) \
3924 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3926 #define stat_inc_inline_dir(inode) \
3928 if (f2fs_has_inline_dentry(inode)) \
3929 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3931 #define stat_dec_inline_dir(inode) \
3933 if (f2fs_has_inline_dentry(inode)) \
3934 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3936 #define stat_inc_compr_inode(inode) \
3938 if (f2fs_compressed_file(inode)) \
3939 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3941 #define stat_dec_compr_inode(inode) \
3943 if (f2fs_compressed_file(inode)) \
3944 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3946 #define stat_add_compr_blocks(inode, blocks) \
3947 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3948 #define stat_sub_compr_blocks(inode, blocks) \
3949 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3950 #define stat_inc_meta_count(sbi, blkaddr) \
3952 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3953 atomic_inc(&(sbi)->meta_count[META_CP]); \
3954 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3955 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3956 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3957 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3958 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3959 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3961 #define stat_inc_seg_type(sbi, curseg) \
3962 ((sbi)->segment_count[(curseg)->alloc_type]++)
3963 #define stat_inc_block_count(sbi, curseg) \
3964 ((sbi)->block_count[(curseg)->alloc_type]++)
3965 #define stat_inc_inplace_blocks(sbi) \
3966 (atomic_inc(&(sbi)->inplace_count))
3967 #define stat_update_max_atomic_write(inode) \
3969 int cur = F2FS_I_SB(inode)->atomic_files; \
3970 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3972 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3974 #define stat_inc_seg_count(sbi, type, gc_type) \
3976 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3978 if ((type) == SUM_TYPE_DATA) { \
3980 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3983 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3987 #define stat_inc_tot_blk_count(si, blks) \
3988 ((si)->tot_blks += (blks))
3990 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3992 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3993 stat_inc_tot_blk_count(si, blks); \
3994 si->data_blks += (blks); \
3995 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3998 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
4000 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4001 stat_inc_tot_blk_count(si, blks); \
4002 si->node_blks += (blks); \
4003 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
4006 int f2fs_build_stats(struct f2fs_sb_info *sbi);
4007 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
4008 void __init f2fs_create_root_stats(void);
4009 void f2fs_destroy_root_stats(void);
4010 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
4012 #define stat_inc_cp_count(si) do { } while (0)
4013 #define stat_inc_bg_cp_count(si) do { } while (0)
4014 #define stat_inc_call_count(si) do { } while (0)
4015 #define stat_inc_bggc_count(si) do { } while (0)
4016 #define stat_io_skip_bggc_count(sbi) do { } while (0)
4017 #define stat_other_skip_bggc_count(sbi) do { } while (0)
4018 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
4019 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
4020 #define stat_inc_total_hit(sbi) do { } while (0)
4021 #define stat_inc_rbtree_node_hit(sbi) do { } while (0)
4022 #define stat_inc_largest_node_hit(sbi) do { } while (0)
4023 #define stat_inc_cached_node_hit(sbi) do { } while (0)
4024 #define stat_inc_inline_xattr(inode) do { } while (0)
4025 #define stat_dec_inline_xattr(inode) do { } while (0)
4026 #define stat_inc_inline_inode(inode) do { } while (0)
4027 #define stat_dec_inline_inode(inode) do { } while (0)
4028 #define stat_inc_inline_dir(inode) do { } while (0)
4029 #define stat_dec_inline_dir(inode) do { } while (0)
4030 #define stat_inc_compr_inode(inode) do { } while (0)
4031 #define stat_dec_compr_inode(inode) do { } while (0)
4032 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
4033 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
4034 #define stat_update_max_atomic_write(inode) do { } while (0)
4035 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
4036 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
4037 #define stat_inc_block_count(sbi, curseg) do { } while (0)
4038 #define stat_inc_inplace_blocks(sbi) do { } while (0)
4039 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
4040 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
4041 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
4042 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
4044 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
4045 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
4046 static inline void __init f2fs_create_root_stats(void) { }
4047 static inline void f2fs_destroy_root_stats(void) { }
4048 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
4051 extern const struct file_operations f2fs_dir_operations;
4052 extern const struct file_operations f2fs_file_operations;
4053 extern const struct inode_operations f2fs_file_inode_operations;
4054 extern const struct address_space_operations f2fs_dblock_aops;
4055 extern const struct address_space_operations f2fs_node_aops;
4056 extern const struct address_space_operations f2fs_meta_aops;
4057 extern const struct inode_operations f2fs_dir_inode_operations;
4058 extern const struct inode_operations f2fs_symlink_inode_operations;
4059 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
4060 extern const struct inode_operations f2fs_special_inode_operations;
4061 extern struct kmem_cache *f2fs_inode_entry_slab;
4066 bool f2fs_may_inline_data(struct inode *inode);
4067 bool f2fs_sanity_check_inline_data(struct inode *inode);
4068 bool f2fs_may_inline_dentry(struct inode *inode);
4069 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
4070 void f2fs_truncate_inline_inode(struct inode *inode,
4071 struct page *ipage, u64 from);
4072 int f2fs_read_inline_data(struct inode *inode, struct page *page);
4073 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
4074 int f2fs_convert_inline_inode(struct inode *inode);
4075 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
4076 int f2fs_write_inline_data(struct inode *inode, struct page *page);
4077 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
4078 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
4079 const struct f2fs_filename *fname,
4080 struct page **res_page);
4081 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
4082 struct page *ipage);
4083 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
4084 struct inode *inode, nid_t ino, umode_t mode);
4085 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
4086 struct page *page, struct inode *dir,
4087 struct inode *inode);
4088 bool f2fs_empty_inline_dir(struct inode *dir);
4089 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
4090 struct fscrypt_str *fstr);
4091 int f2fs_inline_data_fiemap(struct inode *inode,
4092 struct fiemap_extent_info *fieinfo,
4093 __u64 start, __u64 len);
4098 unsigned long f2fs_shrink_count(struct shrinker *shrink,
4099 struct shrink_control *sc);
4100 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
4101 struct shrink_control *sc);
4102 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
4103 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
4108 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
4109 struct rb_entry *cached_re, unsigned int ofs);
4110 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
4111 struct rb_root_cached *root,
4112 struct rb_node **parent,
4113 unsigned long long key, bool *left_most);
4114 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
4115 struct rb_root_cached *root,
4116 struct rb_node **parent,
4117 unsigned int ofs, bool *leftmost);
4118 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
4119 struct rb_entry *cached_re, unsigned int ofs,
4120 struct rb_entry **prev_entry, struct rb_entry **next_entry,
4121 struct rb_node ***insert_p, struct rb_node **insert_parent,
4122 bool force, bool *leftmost);
4123 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
4124 struct rb_root_cached *root, bool check_key);
4125 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
4126 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
4127 void f2fs_drop_extent_tree(struct inode *inode);
4128 unsigned int f2fs_destroy_extent_node(struct inode *inode);
4129 void f2fs_destroy_extent_tree(struct inode *inode);
4130 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
4131 struct extent_info *ei);
4132 void f2fs_update_extent_cache(struct dnode_of_data *dn);
4133 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
4134 pgoff_t fofs, block_t blkaddr, unsigned int len);
4135 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
4136 int __init f2fs_create_extent_cache(void);
4137 void f2fs_destroy_extent_cache(void);
4142 #define MIN_RA_MUL 2
4143 #define MAX_RA_MUL 256
4145 int __init f2fs_init_sysfs(void);
4146 void f2fs_exit_sysfs(void);
4147 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4148 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4151 extern const struct fsverity_operations f2fs_verityops;
4156 static inline bool f2fs_encrypted_file(struct inode *inode)
4158 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4161 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4163 #ifdef CONFIG_FS_ENCRYPTION
4164 file_set_encrypt(inode);
4165 f2fs_set_inode_flags(inode);
4170 * Returns true if the reads of the inode's data need to undergo some
4171 * postprocessing step, like decryption or authenticity verification.
4173 static inline bool f2fs_post_read_required(struct inode *inode)
4175 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4176 f2fs_compressed_file(inode);
4182 #ifdef CONFIG_F2FS_FS_COMPRESSION
4183 bool f2fs_is_compressed_page(struct page *page);
4184 struct page *f2fs_compress_control_page(struct page *page);
4185 int f2fs_prepare_compress_overwrite(struct inode *inode,
4186 struct page **pagep, pgoff_t index, void **fsdata);
4187 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4188 pgoff_t index, unsigned copied);
4189 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4190 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4191 bool f2fs_is_compress_backend_ready(struct inode *inode);
4192 int f2fs_init_compress_mempool(void);
4193 void f2fs_destroy_compress_mempool(void);
4194 void f2fs_decompress_cluster(struct decompress_io_ctx *dic, bool in_task);
4195 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4196 block_t blkaddr, bool in_task);
4197 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4198 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4199 bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct page **pages,
4200 int index, int nr_pages, bool uptodate);
4201 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4202 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4203 int f2fs_write_multi_pages(struct compress_ctx *cc,
4205 struct writeback_control *wbc,
4206 enum iostat_type io_type);
4207 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4208 void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4209 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4210 unsigned int c_len);
4211 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4212 unsigned nr_pages, sector_t *last_block_in_bio,
4213 bool is_readahead, bool for_write);
4214 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4215 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed,
4217 void f2fs_put_page_dic(struct page *page, bool in_task);
4218 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4219 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4220 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4221 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4222 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4223 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4224 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4225 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4226 int __init f2fs_init_compress_cache(void);
4227 void f2fs_destroy_compress_cache(void);
4228 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4229 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4230 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4231 nid_t ino, block_t blkaddr);
4232 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4234 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4235 #define inc_compr_inode_stat(inode) \
4237 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4238 sbi->compr_new_inode++; \
4240 #define add_compr_block_stat(inode, blocks) \
4242 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4243 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4244 sbi->compr_written_block += blocks; \
4245 sbi->compr_saved_block += diff; \
4248 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4249 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4251 if (!f2fs_compressed_file(inode))
4253 /* not support compression */
4256 static inline struct page *f2fs_compress_control_page(struct page *page)
4259 return ERR_PTR(-EINVAL);
4261 static inline int f2fs_init_compress_mempool(void) { return 0; }
4262 static inline void f2fs_destroy_compress_mempool(void) { }
4263 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic,
4265 static inline void f2fs_end_read_compressed_page(struct page *page,
4266 bool failed, block_t blkaddr, bool in_task)
4270 static inline void f2fs_put_page_dic(struct page *page, bool in_task)
4274 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
4275 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
4276 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4277 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4278 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4279 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4280 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4281 static inline void f2fs_destroy_compress_cache(void) { }
4282 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4283 block_t blkaddr) { }
4284 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4285 struct page *page, nid_t ino, block_t blkaddr) { }
4286 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4287 struct page *page, block_t blkaddr) { return false; }
4288 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4290 #define inc_compr_inode_stat(inode) do { } while (0)
4291 static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4292 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4293 unsigned int c_len) { }
4296 static inline int set_compress_context(struct inode *inode)
4298 #ifdef CONFIG_F2FS_FS_COMPRESSION
4299 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4301 F2FS_I(inode)->i_compress_algorithm =
4302 F2FS_OPTION(sbi).compress_algorithm;
4303 F2FS_I(inode)->i_log_cluster_size =
4304 F2FS_OPTION(sbi).compress_log_size;
4305 F2FS_I(inode)->i_compress_flag =
4306 F2FS_OPTION(sbi).compress_chksum ?
4307 1 << COMPRESS_CHKSUM : 0;
4308 F2FS_I(inode)->i_cluster_size =
4309 1 << F2FS_I(inode)->i_log_cluster_size;
4310 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4311 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4312 F2FS_OPTION(sbi).compress_level)
4313 F2FS_I(inode)->i_compress_flag |=
4314 F2FS_OPTION(sbi).compress_level <<
4315 COMPRESS_LEVEL_OFFSET;
4316 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4317 set_inode_flag(inode, FI_COMPRESSED_FILE);
4318 stat_inc_compr_inode(inode);
4319 inc_compr_inode_stat(inode);
4320 f2fs_mark_inode_dirty_sync(inode, true);
4327 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4329 struct f2fs_inode_info *fi = F2FS_I(inode);
4331 if (!f2fs_compressed_file(inode))
4333 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
4336 fi->i_flags &= ~F2FS_COMPR_FL;
4337 stat_dec_compr_inode(inode);
4338 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4339 f2fs_mark_inode_dirty_sync(inode, true);
4343 #define F2FS_FEATURE_FUNCS(name, flagname) \
4344 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4346 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4349 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4350 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4351 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4352 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4353 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4354 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4355 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4356 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4357 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4358 F2FS_FEATURE_FUNCS(verity, VERITY);
4359 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4360 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4361 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4362 F2FS_FEATURE_FUNCS(readonly, RO);
4364 static inline bool f2fs_may_extent_tree(struct inode *inode)
4366 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4368 if (!test_opt(sbi, EXTENT_CACHE) ||
4369 is_inode_flag_set(inode, FI_NO_EXTENT) ||
4370 (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
4371 !f2fs_sb_has_readonly(sbi)))
4375 * for recovered files during mount do not create extents
4376 * if shrinker is not registered.
4378 if (list_empty(&sbi->s_list))
4381 return S_ISREG(inode->i_mode);
4384 #ifdef CONFIG_BLK_DEV_ZONED
4385 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4388 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4390 return test_bit(zno, FDEV(devi).blkz_seq);
4394 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4396 return f2fs_sb_has_blkzoned(sbi);
4399 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4401 return bdev_max_discard_sectors(bdev) || bdev_is_zoned(bdev);
4404 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4408 if (!f2fs_is_multi_device(sbi))
4409 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4411 for (i = 0; i < sbi->s_ndevs; i++)
4412 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4417 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4419 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4420 f2fs_hw_should_discard(sbi);
4423 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4427 if (!f2fs_is_multi_device(sbi))
4428 return bdev_read_only(sbi->sb->s_bdev);
4430 for (i = 0; i < sbi->s_ndevs; i++)
4431 if (bdev_read_only(FDEV(i).bdev))
4436 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4438 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4441 static inline bool f2fs_low_mem_mode(struct f2fs_sb_info *sbi)
4443 return F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW;
4446 static inline bool f2fs_may_compress(struct inode *inode)
4448 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4449 f2fs_is_atomic_file(inode) || f2fs_has_inline_data(inode))
4451 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4454 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4455 u64 blocks, bool add)
4457 struct f2fs_inode_info *fi = F2FS_I(inode);
4458 int diff = fi->i_cluster_size - blocks;
4460 /* don't update i_compr_blocks if saved blocks were released */
4461 if (!add && !atomic_read(&fi->i_compr_blocks))
4465 atomic_add(diff, &fi->i_compr_blocks);
4466 stat_add_compr_blocks(inode, diff);
4468 atomic_sub(diff, &fi->i_compr_blocks);
4469 stat_sub_compr_blocks(inode, diff);
4471 f2fs_mark_inode_dirty_sync(inode, true);
4474 static inline int block_unaligned_IO(struct inode *inode,
4475 struct kiocb *iocb, struct iov_iter *iter)
4477 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4478 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4479 loff_t offset = iocb->ki_pos;
4480 unsigned long align = offset | iov_iter_alignment(iter);
4482 return align & blocksize_mask;
4485 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4488 if (!f2fs_is_multi_device(sbi))
4490 if (flag != F2FS_GET_BLOCK_DIO)
4492 return sbi->aligned_blksize;
4495 static inline bool f2fs_force_buffered_io(struct inode *inode,
4496 struct kiocb *iocb, struct iov_iter *iter)
4498 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4499 int rw = iov_iter_rw(iter);
4501 if (!fscrypt_dio_supported(iocb, iter))
4503 if (fsverity_active(inode))
4505 if (f2fs_compressed_file(inode))
4508 /* disallow direct IO if any of devices has unaligned blksize */
4509 if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
4512 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4513 if (block_unaligned_IO(inode, iocb, iter))
4515 if (F2FS_IO_ALIGNED(sbi))
4518 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
4524 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4526 return fsverity_active(inode) &&
4527 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4530 #ifdef CONFIG_F2FS_FAULT_INJECTION
4531 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4534 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4537 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4540 if (f2fs_sb_has_quota_ino(sbi))
4542 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4543 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4544 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4550 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4552 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4555 static inline void f2fs_io_schedule_timeout(long timeout)
4557 set_current_state(TASK_UNINTERRUPTIBLE);
4558 io_schedule_timeout(timeout);
4561 static inline void f2fs_handle_page_eio(struct f2fs_sb_info *sbi, pgoff_t ofs,
4562 enum page_type type)
4564 if (unlikely(f2fs_cp_error(sbi)))
4567 if (ofs == sbi->page_eio_ofs[type]) {
4568 if (sbi->page_eio_cnt[type]++ == MAX_RETRY_PAGE_EIO)
4569 set_ckpt_flags(sbi, CP_ERROR_FLAG);
4571 sbi->page_eio_ofs[type] = ofs;
4572 sbi->page_eio_cnt[type] = 0;
4576 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4577 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4579 #endif /* _LINUX_F2FS_H */