1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/vmalloc.h>
22 #include <linux/bio.h>
23 #include <linux/blkdev.h>
24 #include <linux/quotaops.h>
25 #include <linux/part_stat.h>
26 #include <crypto/hash.h>
28 #include <linux/fscrypt.h>
29 #include <linux/fsverity.h>
33 #ifdef CONFIG_F2FS_CHECK_FS
34 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
36 #define f2fs_bug_on(sbi, condition) \
38 if (WARN_ON(condition)) \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
48 FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
65 #ifdef CONFIG_F2FS_FAULT_INJECTION
66 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
68 struct f2fs_fault_info {
70 unsigned int inject_rate;
71 unsigned int inject_type;
74 extern const char *f2fs_fault_name[FAULT_MAX];
75 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
81 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
82 #define F2FS_MOUNT_DISCARD 0x00000004
83 #define F2FS_MOUNT_NOHEAP 0x00000008
84 #define F2FS_MOUNT_XATTR_USER 0x00000010
85 #define F2FS_MOUNT_POSIX_ACL 0x00000020
86 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
87 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
88 #define F2FS_MOUNT_INLINE_DATA 0x00000100
89 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
90 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
91 #define F2FS_MOUNT_NOBARRIER 0x00000800
92 #define F2FS_MOUNT_FASTBOOT 0x00001000
93 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
94 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
95 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
96 #define F2FS_MOUNT_USRQUOTA 0x00080000
97 #define F2FS_MOUNT_GRPQUOTA 0x00100000
98 #define F2FS_MOUNT_PRJQUOTA 0x00200000
99 #define F2FS_MOUNT_QUOTA 0x00400000
100 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
101 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
102 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
103 #define F2FS_MOUNT_NORECOVERY 0x04000000
104 #define F2FS_MOUNT_ATGC 0x08000000
105 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
106 #define F2FS_MOUNT_GC_MERGE 0x20000000
107 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
109 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
110 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
111 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
112 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
114 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
115 typecheck(unsigned long long, b) && \
116 ((long long)((a) - (b)) > 0))
118 typedef u32 block_t; /*
119 * should not change u32, since it is the on-disk block
120 * address format, __le32.
124 #define COMPRESS_EXT_NUM 16
126 struct f2fs_mount_info {
128 int write_io_size_bits; /* Write IO size bits */
129 block_t root_reserved_blocks; /* root reserved blocks */
130 kuid_t s_resuid; /* reserved blocks for uid */
131 kgid_t s_resgid; /* reserved blocks for gid */
132 int active_logs; /* # of active logs */
133 int inline_xattr_size; /* inline xattr size */
134 #ifdef CONFIG_F2FS_FAULT_INJECTION
135 struct f2fs_fault_info fault_info; /* For fault injection */
138 /* Names of quota files with journalled quota */
139 char *s_qf_names[MAXQUOTAS];
140 int s_jquota_fmt; /* Format of quota to use */
142 /* For which write hints are passed down to block layer */
144 int alloc_mode; /* segment allocation policy */
145 int fsync_mode; /* fsync policy */
146 int fs_mode; /* fs mode: LFS or ADAPTIVE */
147 int bggc_mode; /* bggc mode: off, on or sync */
149 * discard command's offset/size should
150 * be aligned to this unit: block,
153 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
154 block_t unusable_cap_perc; /* percentage for cap */
155 block_t unusable_cap; /* Amount of space allowed to be
156 * unusable when disabling checkpoint
159 /* For compression */
160 unsigned char compress_algorithm; /* algorithm type */
161 unsigned char compress_log_size; /* cluster log size */
162 unsigned char compress_level; /* compress level */
163 bool compress_chksum; /* compressed data chksum */
164 unsigned char compress_ext_cnt; /* extension count */
165 unsigned char nocompress_ext_cnt; /* nocompress extension count */
166 int compress_mode; /* compression mode */
167 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
168 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
171 #define F2FS_FEATURE_ENCRYPT 0x0001
172 #define F2FS_FEATURE_BLKZONED 0x0002
173 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
174 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
175 #define F2FS_FEATURE_PRJQUOTA 0x0010
176 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
177 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
178 #define F2FS_FEATURE_QUOTA_INO 0x0080
179 #define F2FS_FEATURE_INODE_CRTIME 0x0100
180 #define F2FS_FEATURE_LOST_FOUND 0x0200
181 #define F2FS_FEATURE_VERITY 0x0400
182 #define F2FS_FEATURE_SB_CHKSUM 0x0800
183 #define F2FS_FEATURE_CASEFOLD 0x1000
184 #define F2FS_FEATURE_COMPRESSION 0x2000
185 #define F2FS_FEATURE_RO 0x4000
187 #define __F2FS_HAS_FEATURE(raw_super, mask) \
188 ((raw_super->feature & cpu_to_le32(mask)) != 0)
189 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
190 #define F2FS_SET_FEATURE(sbi, mask) \
191 (sbi->raw_super->feature |= cpu_to_le32(mask))
192 #define F2FS_CLEAR_FEATURE(sbi, mask) \
193 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
196 * Default values for user and/or group using reserved blocks
198 #define F2FS_DEF_RESUID 0
199 #define F2FS_DEF_RESGID 0
202 * For checkpoint manager
209 #define CP_UMOUNT 0x00000001
210 #define CP_FASTBOOT 0x00000002
211 #define CP_SYNC 0x00000004
212 #define CP_RECOVERY 0x00000008
213 #define CP_DISCARD 0x00000010
214 #define CP_TRIMMED 0x00000020
215 #define CP_PAUSE 0x00000040
216 #define CP_RESIZE 0x00000080
218 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
219 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
220 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
221 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
222 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
223 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
224 #define DEF_CP_INTERVAL 60 /* 60 secs */
225 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
226 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
227 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
228 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
238 * indicate meta/data type
247 DATA_GENERIC, /* check range only */
248 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
249 DATA_GENERIC_ENHANCE_READ, /*
250 * strong check on range and segment
251 * bitmap but no warning due to race
252 * condition of read on truncated area
258 /* for the list of ino */
260 ORPHAN_INO, /* for orphan ino list */
261 APPEND_INO, /* for append ino list */
262 UPDATE_INO, /* for update ino list */
263 TRANS_DIR_INO, /* for trasactions dir ino list */
264 FLUSH_INO, /* for multiple device flushing */
265 MAX_INO_ENTRY, /* max. list */
269 struct list_head list; /* list head */
270 nid_t ino; /* inode number */
271 unsigned int dirty_device; /* dirty device bitmap */
274 /* for the list of inodes to be GCed */
276 struct list_head list; /* list head */
277 struct inode *inode; /* vfs inode pointer */
280 struct fsync_node_entry {
281 struct list_head list; /* list head */
282 struct page *page; /* warm node page pointer */
283 unsigned int seq_id; /* sequence id */
287 struct completion wait; /* completion for checkpoint done */
288 struct llist_node llnode; /* llist_node to be linked in wait queue */
289 int ret; /* return code of checkpoint */
290 ktime_t queue_time; /* request queued time */
293 struct ckpt_req_control {
294 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
295 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
296 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
297 atomic_t issued_ckpt; /* # of actually issued ckpts */
298 atomic_t total_ckpt; /* # of total ckpts */
299 atomic_t queued_ckpt; /* # of queued ckpts */
300 struct llist_head issue_list; /* list for command issue */
301 spinlock_t stat_lock; /* lock for below checkpoint time stats */
302 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
303 unsigned int peak_time; /* peak wait time in msec until now */
306 /* for the bitmap indicate blocks to be discarded */
307 struct discard_entry {
308 struct list_head list; /* list head */
309 block_t start_blkaddr; /* start blockaddr of current segment */
310 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
313 /* default discard granularity of inner discard thread, unit: block count */
314 #define DEFAULT_DISCARD_GRANULARITY 16
316 /* max discard pend list number */
317 #define MAX_PLIST_NUM 512
318 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
319 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
322 D_PREP, /* initial */
323 D_PARTIAL, /* partially submitted */
324 D_SUBMIT, /* all submitted */
325 D_DONE, /* finished */
328 struct discard_info {
329 block_t lstart; /* logical start address */
330 block_t len; /* length */
331 block_t start; /* actual start address in dev */
335 struct rb_node rb_node; /* rb node located in rb-tree */
338 block_t lstart; /* logical start address */
339 block_t len; /* length */
340 block_t start; /* actual start address in dev */
342 struct discard_info di; /* discard info */
345 struct list_head list; /* command list */
346 struct completion wait; /* compleation */
347 struct block_device *bdev; /* bdev */
348 unsigned short ref; /* reference count */
349 unsigned char state; /* state */
350 unsigned char queued; /* queued discard */
351 int error; /* bio error */
352 spinlock_t lock; /* for state/bio_ref updating */
353 unsigned short bio_ref; /* bio reference count */
364 struct discard_policy {
365 int type; /* type of discard */
366 unsigned int min_interval; /* used for candidates exist */
367 unsigned int mid_interval; /* used for device busy */
368 unsigned int max_interval; /* used for candidates not exist */
369 unsigned int max_requests; /* # of discards issued per round */
370 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
371 bool io_aware; /* issue discard in idle time */
372 bool sync; /* submit discard with REQ_SYNC flag */
373 bool ordered; /* issue discard by lba order */
374 bool timeout; /* discard timeout for put_super */
375 unsigned int granularity; /* discard granularity */
378 struct discard_cmd_control {
379 struct task_struct *f2fs_issue_discard; /* discard thread */
380 struct list_head entry_list; /* 4KB discard entry list */
381 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
382 struct list_head wait_list; /* store on-flushing entries */
383 struct list_head fstrim_list; /* in-flight discard from fstrim */
384 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
385 unsigned int discard_wake; /* to wake up discard thread */
386 struct mutex cmd_lock;
387 unsigned int nr_discards; /* # of discards in the list */
388 unsigned int max_discards; /* max. discards to be issued */
389 unsigned int discard_granularity; /* discard granularity */
390 unsigned int undiscard_blks; /* # of undiscard blocks */
391 unsigned int next_pos; /* next discard position */
392 atomic_t issued_discard; /* # of issued discard */
393 atomic_t queued_discard; /* # of queued discard */
394 atomic_t discard_cmd_cnt; /* # of cached cmd count */
395 struct rb_root_cached root; /* root of discard rb-tree */
396 bool rbtree_check; /* config for consistence check */
399 /* for the list of fsync inodes, used only during recovery */
400 struct fsync_inode_entry {
401 struct list_head list; /* list head */
402 struct inode *inode; /* vfs inode pointer */
403 block_t blkaddr; /* block address locating the last fsync */
404 block_t last_dentry; /* block address locating the last dentry */
407 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
408 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
410 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
411 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
412 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
413 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
415 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
416 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
418 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
420 int before = nats_in_cursum(journal);
422 journal->n_nats = cpu_to_le16(before + i);
426 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
428 int before = sits_in_cursum(journal);
430 journal->n_sits = cpu_to_le16(before + i);
434 static inline bool __has_cursum_space(struct f2fs_journal *journal,
437 if (type == NAT_JOURNAL)
438 return size <= MAX_NAT_JENTRIES(journal);
439 return size <= MAX_SIT_JENTRIES(journal);
442 /* for inline stuff */
443 #define DEF_INLINE_RESERVED_SIZE 1
444 static inline int get_extra_isize(struct inode *inode);
445 static inline int get_inline_xattr_addrs(struct inode *inode);
446 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
447 (CUR_ADDRS_PER_INODE(inode) - \
448 get_inline_xattr_addrs(inode) - \
449 DEF_INLINE_RESERVED_SIZE))
452 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
453 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
455 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
456 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
457 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
458 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
459 NR_INLINE_DENTRY(inode) + \
460 INLINE_DENTRY_BITMAP_SIZE(inode)))
463 * For INODE and NODE manager
465 /* for directory operations */
467 struct f2fs_filename {
469 * The filename the user specified. This is NULL for some
470 * filesystem-internal operations, e.g. converting an inline directory
471 * to a non-inline one, or roll-forward recovering an encrypted dentry.
473 const struct qstr *usr_fname;
476 * The on-disk filename. For encrypted directories, this is encrypted.
477 * This may be NULL for lookups in an encrypted dir without the key.
479 struct fscrypt_str disk_name;
481 /* The dirhash of this filename */
484 #ifdef CONFIG_FS_ENCRYPTION
486 * For lookups in encrypted directories: either the buffer backing
487 * disk_name, or a buffer that holds the decoded no-key name.
489 struct fscrypt_str crypto_buf;
491 #ifdef CONFIG_UNICODE
493 * For casefolded directories: the casefolded name, but it's left NULL
494 * if the original name is not valid Unicode, if the directory is both
495 * casefolded and encrypted and its encryption key is unavailable, or if
496 * the filesystem is doing an internal operation where usr_fname is also
497 * NULL. In all these cases we fall back to treating the name as an
498 * opaque byte sequence.
500 struct fscrypt_str cf_name;
504 struct f2fs_dentry_ptr {
507 struct f2fs_dir_entry *dentry;
508 __u8 (*filename)[F2FS_SLOT_LEN];
513 static inline void make_dentry_ptr_block(struct inode *inode,
514 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
517 d->max = NR_DENTRY_IN_BLOCK;
518 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
519 d->bitmap = t->dentry_bitmap;
520 d->dentry = t->dentry;
521 d->filename = t->filename;
524 static inline void make_dentry_ptr_inline(struct inode *inode,
525 struct f2fs_dentry_ptr *d, void *t)
527 int entry_cnt = NR_INLINE_DENTRY(inode);
528 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
529 int reserved_size = INLINE_RESERVED_SIZE(inode);
533 d->nr_bitmap = bitmap_size;
535 d->dentry = t + bitmap_size + reserved_size;
536 d->filename = t + bitmap_size + reserved_size +
537 SIZE_OF_DIR_ENTRY * entry_cnt;
541 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
542 * as its node offset to distinguish from index node blocks.
543 * But some bits are used to mark the node block.
545 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
548 ALLOC_NODE, /* allocate a new node page if needed */
549 LOOKUP_NODE, /* look up a node without readahead */
551 * look up a node with readahead called
556 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
558 /* congestion wait timeout value, default: 20ms */
559 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
561 /* maximum retry quota flush count */
562 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
564 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
566 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
568 /* dirty segments threshold for triggering CP */
569 #define DEFAULT_DIRTY_THRESHOLD 4
571 /* for in-memory extent cache entry */
572 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
574 /* number of extent info in extent cache we try to shrink */
575 #define EXTENT_CACHE_SHRINK_NUMBER 128
578 struct rb_node rb_node; /* rb node located in rb-tree */
581 unsigned int ofs; /* start offset of the entry */
582 unsigned int len; /* length of the entry */
584 unsigned long long key; /* 64-bits key */
589 unsigned int fofs; /* start offset in a file */
590 unsigned int len; /* length of the extent */
591 u32 blk; /* start block address of the extent */
592 #ifdef CONFIG_F2FS_FS_COMPRESSION
593 unsigned int c_len; /* physical extent length of compressed blocks */
598 struct rb_node rb_node; /* rb node located in rb-tree */
599 struct extent_info ei; /* extent info */
600 struct list_head list; /* node in global extent list of sbi */
601 struct extent_tree *et; /* extent tree pointer */
605 nid_t ino; /* inode number */
606 struct rb_root_cached root; /* root of extent info rb-tree */
607 struct extent_node *cached_en; /* recently accessed extent node */
608 struct extent_info largest; /* largested extent info */
609 struct list_head list; /* to be used by sbi->zombie_list */
610 rwlock_t lock; /* protect extent info rb-tree */
611 atomic_t node_cnt; /* # of extent node in rb-tree*/
612 bool largest_updated; /* largest extent updated */
616 * This structure is taken from ext4_map_blocks.
618 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
620 #define F2FS_MAP_NEW (1 << BH_New)
621 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
622 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
623 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
626 struct f2fs_map_blocks {
627 struct block_device *m_bdev; /* for multi-device dio */
631 unsigned int m_flags;
632 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
633 pgoff_t *m_next_extent; /* point to next possible extent */
635 bool m_may_create; /* indicate it is from write path */
636 bool m_multidev_dio; /* indicate it allows multi-device dio */
639 /* for flag in get_data_block */
641 F2FS_GET_BLOCK_DEFAULT,
642 F2FS_GET_BLOCK_FIEMAP,
645 F2FS_GET_BLOCK_PRE_DIO,
646 F2FS_GET_BLOCK_PRE_AIO,
647 F2FS_GET_BLOCK_PRECACHE,
651 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
653 #define FADVISE_COLD_BIT 0x01
654 #define FADVISE_LOST_PINO_BIT 0x02
655 #define FADVISE_ENCRYPT_BIT 0x04
656 #define FADVISE_ENC_NAME_BIT 0x08
657 #define FADVISE_KEEP_SIZE_BIT 0x10
658 #define FADVISE_HOT_BIT 0x20
659 #define FADVISE_VERITY_BIT 0x40
660 #define FADVISE_TRUNC_BIT 0x80
662 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
664 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
665 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
666 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
668 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
669 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
670 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
672 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
673 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
675 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
676 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
678 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
679 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
681 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
682 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
683 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
685 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
686 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
688 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
689 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
690 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
692 #define DEF_DIR_LEVEL 0
700 /* used for f2fs_inode_info->flags */
702 FI_NEW_INODE, /* indicate newly allocated inode */
703 FI_DIRTY_INODE, /* indicate inode is dirty or not */
704 FI_AUTO_RECOVER, /* indicate inode is recoverable */
705 FI_DIRTY_DIR, /* indicate directory has dirty pages */
706 FI_INC_LINK, /* need to increment i_nlink */
707 FI_ACL_MODE, /* indicate acl mode */
708 FI_NO_ALLOC, /* should not allocate any blocks */
709 FI_FREE_NID, /* free allocated nide */
710 FI_NO_EXTENT, /* not to use the extent cache */
711 FI_INLINE_XATTR, /* used for inline xattr */
712 FI_INLINE_DATA, /* used for inline data*/
713 FI_INLINE_DENTRY, /* used for inline dentry */
714 FI_APPEND_WRITE, /* inode has appended data */
715 FI_UPDATE_WRITE, /* inode has in-place-update data */
716 FI_NEED_IPU, /* used for ipu per file */
717 FI_ATOMIC_FILE, /* indicate atomic file */
718 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
719 FI_VOLATILE_FILE, /* indicate volatile file */
720 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
721 FI_DROP_CACHE, /* drop dirty page cache */
722 FI_DATA_EXIST, /* indicate data exists */
723 FI_INLINE_DOTS, /* indicate inline dot dentries */
724 FI_DO_DEFRAG, /* indicate defragment is running */
725 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
726 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
727 FI_HOT_DATA, /* indicate file is hot */
728 FI_EXTRA_ATTR, /* indicate file has extra attribute */
729 FI_PROJ_INHERIT, /* indicate file inherits projectid */
730 FI_PIN_FILE, /* indicate file should not be gced */
731 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
732 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
733 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
734 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
735 FI_MMAP_FILE, /* indicate file was mmapped */
736 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
737 FI_COMPRESS_RELEASED, /* compressed blocks were released */
738 FI_ALIGNED_WRITE, /* enable aligned write */
739 FI_MAX, /* max flag, never be used */
742 struct f2fs_inode_info {
743 struct inode vfs_inode; /* serve a vfs inode */
744 unsigned long i_flags; /* keep an inode flags for ioctl */
745 unsigned char i_advise; /* use to give file attribute hints */
746 unsigned char i_dir_level; /* use for dentry level for large dir */
747 unsigned int i_current_depth; /* only for directory depth */
748 /* for gc failure statistic */
749 unsigned int i_gc_failures[MAX_GC_FAILURE];
750 unsigned int i_pino; /* parent inode number */
751 umode_t i_acl_mode; /* keep file acl mode temporarily */
753 /* Use below internally in f2fs*/
754 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
755 struct rw_semaphore i_sem; /* protect fi info */
756 atomic_t dirty_pages; /* # of dirty pages */
757 f2fs_hash_t chash; /* hash value of given file name */
758 unsigned int clevel; /* maximum level of given file name */
759 struct task_struct *task; /* lookup and create consistency */
760 struct task_struct *cp_task; /* separate cp/wb IO stats*/
761 nid_t i_xattr_nid; /* node id that contains xattrs */
762 loff_t last_disk_size; /* lastly written file size */
763 spinlock_t i_size_lock; /* protect last_disk_size */
766 struct dquot *i_dquot[MAXQUOTAS];
768 /* quota space reservation, managed internally by quota code */
769 qsize_t i_reserved_quota;
771 struct list_head dirty_list; /* dirty list for dirs and files */
772 struct list_head gdirty_list; /* linked in global dirty list */
773 struct list_head inmem_ilist; /* list for inmem inodes */
774 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
775 struct task_struct *inmem_task; /* store inmemory task */
776 struct mutex inmem_lock; /* lock for inmemory pages */
777 struct extent_tree *extent_tree; /* cached extent_tree entry */
779 /* avoid racing between foreground op and gc */
780 struct rw_semaphore i_gc_rwsem[2];
781 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
783 int i_extra_isize; /* size of extra space located in i_addr */
784 kprojid_t i_projid; /* id for project quota */
785 int i_inline_xattr_size; /* inline xattr size */
786 struct timespec64 i_crtime; /* inode creation time */
787 struct timespec64 i_disk_time[4];/* inode disk times */
789 /* for file compress */
790 atomic_t i_compr_blocks; /* # of compressed blocks */
791 unsigned char i_compress_algorithm; /* algorithm type */
792 unsigned char i_log_cluster_size; /* log of cluster size */
793 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
794 unsigned short i_compress_flag; /* compress flag */
795 unsigned int i_cluster_size; /* cluster size */
798 static inline void get_extent_info(struct extent_info *ext,
799 struct f2fs_extent *i_ext)
801 ext->fofs = le32_to_cpu(i_ext->fofs);
802 ext->blk = le32_to_cpu(i_ext->blk);
803 ext->len = le32_to_cpu(i_ext->len);
806 static inline void set_raw_extent(struct extent_info *ext,
807 struct f2fs_extent *i_ext)
809 i_ext->fofs = cpu_to_le32(ext->fofs);
810 i_ext->blk = cpu_to_le32(ext->blk);
811 i_ext->len = cpu_to_le32(ext->len);
814 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
815 u32 blk, unsigned int len)
820 #ifdef CONFIG_F2FS_FS_COMPRESSION
825 static inline bool __is_discard_mergeable(struct discard_info *back,
826 struct discard_info *front, unsigned int max_len)
828 return (back->lstart + back->len == front->lstart) &&
829 (back->len + front->len <= max_len);
832 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
833 struct discard_info *back, unsigned int max_len)
835 return __is_discard_mergeable(back, cur, max_len);
838 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
839 struct discard_info *front, unsigned int max_len)
841 return __is_discard_mergeable(cur, front, max_len);
844 static inline bool __is_extent_mergeable(struct extent_info *back,
845 struct extent_info *front)
847 #ifdef CONFIG_F2FS_FS_COMPRESSION
848 if (back->c_len && back->len != back->c_len)
850 if (front->c_len && front->len != front->c_len)
853 return (back->fofs + back->len == front->fofs &&
854 back->blk + back->len == front->blk);
857 static inline bool __is_back_mergeable(struct extent_info *cur,
858 struct extent_info *back)
860 return __is_extent_mergeable(back, cur);
863 static inline bool __is_front_mergeable(struct extent_info *cur,
864 struct extent_info *front)
866 return __is_extent_mergeable(cur, front);
869 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
870 static inline void __try_update_largest_extent(struct extent_tree *et,
871 struct extent_node *en)
873 if (en->ei.len > et->largest.len) {
874 et->largest = en->ei;
875 et->largest_updated = true;
880 * For free nid management
883 FREE_NID, /* newly added to free nid list */
884 PREALLOC_NID, /* it is preallocated */
895 struct f2fs_nm_info {
896 block_t nat_blkaddr; /* base disk address of NAT */
897 nid_t max_nid; /* maximum possible node ids */
898 nid_t available_nids; /* # of available node ids */
899 nid_t next_scan_nid; /* the next nid to be scanned */
900 unsigned int ram_thresh; /* control the memory footprint */
901 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
902 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
904 /* NAT cache management */
905 struct radix_tree_root nat_root;/* root of the nat entry cache */
906 struct radix_tree_root nat_set_root;/* root of the nat set cache */
907 struct rw_semaphore nat_tree_lock; /* protect nat entry tree */
908 struct list_head nat_entries; /* cached nat entry list (clean) */
909 spinlock_t nat_list_lock; /* protect clean nat entry list */
910 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
911 unsigned int nat_blocks; /* # of nat blocks */
913 /* free node ids management */
914 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
915 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
916 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
917 spinlock_t nid_list_lock; /* protect nid lists ops */
918 struct mutex build_lock; /* lock for build free nids */
919 unsigned char **free_nid_bitmap;
920 unsigned char *nat_block_bitmap;
921 unsigned short *free_nid_count; /* free nid count of NAT block */
924 char *nat_bitmap; /* NAT bitmap pointer */
926 unsigned int nat_bits_blocks; /* # of nat bits blocks */
927 unsigned char *nat_bits; /* NAT bits blocks */
928 unsigned char *full_nat_bits; /* full NAT pages */
929 unsigned char *empty_nat_bits; /* empty NAT pages */
930 #ifdef CONFIG_F2FS_CHECK_FS
931 char *nat_bitmap_mir; /* NAT bitmap mirror */
933 int bitmap_size; /* bitmap size */
937 * this structure is used as one of function parameters.
938 * all the information are dedicated to a given direct node block determined
939 * by the data offset in a file.
941 struct dnode_of_data {
942 struct inode *inode; /* vfs inode pointer */
943 struct page *inode_page; /* its inode page, NULL is possible */
944 struct page *node_page; /* cached direct node page */
945 nid_t nid; /* node id of the direct node block */
946 unsigned int ofs_in_node; /* data offset in the node page */
947 bool inode_page_locked; /* inode page is locked or not */
948 bool node_changed; /* is node block changed */
949 char cur_level; /* level of hole node page */
950 char max_level; /* level of current page located */
951 block_t data_blkaddr; /* block address of the node block */
954 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
955 struct page *ipage, struct page *npage, nid_t nid)
957 memset(dn, 0, sizeof(*dn));
959 dn->inode_page = ipage;
960 dn->node_page = npage;
967 * By default, there are 6 active log areas across the whole main area.
968 * When considering hot and cold data separation to reduce cleaning overhead,
969 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
971 * In the current design, you should not change the numbers intentionally.
972 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
973 * logs individually according to the underlying devices. (default: 6)
974 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
975 * data and 8 for node logs.
977 #define NR_CURSEG_DATA_TYPE (3)
978 #define NR_CURSEG_NODE_TYPE (3)
979 #define NR_CURSEG_INMEM_TYPE (2)
980 #define NR_CURSEG_RO_TYPE (2)
981 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
982 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
985 CURSEG_HOT_DATA = 0, /* directory entry blocks */
986 CURSEG_WARM_DATA, /* data blocks */
987 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
988 CURSEG_HOT_NODE, /* direct node blocks of directory files */
989 CURSEG_WARM_NODE, /* direct node blocks of normal files */
990 CURSEG_COLD_NODE, /* indirect node blocks */
991 NR_PERSISTENT_LOG, /* number of persistent log */
992 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
993 /* pinned file that needs consecutive block address */
994 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
995 NO_CHECK_TYPE, /* number of persistent & inmem log */
999 struct completion wait;
1000 struct llist_node llnode;
1005 struct flush_cmd_control {
1006 struct task_struct *f2fs_issue_flush; /* flush thread */
1007 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1008 atomic_t issued_flush; /* # of issued flushes */
1009 atomic_t queued_flush; /* # of queued flushes */
1010 struct llist_head issue_list; /* list for command issue */
1011 struct llist_node *dispatch_list; /* list for command dispatch */
1014 struct f2fs_sm_info {
1015 struct sit_info *sit_info; /* whole segment information */
1016 struct free_segmap_info *free_info; /* free segment information */
1017 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1018 struct curseg_info *curseg_array; /* active segment information */
1020 struct rw_semaphore curseg_lock; /* for preventing curseg change */
1022 block_t seg0_blkaddr; /* block address of 0'th segment */
1023 block_t main_blkaddr; /* start block address of main area */
1024 block_t ssa_blkaddr; /* start block address of SSA area */
1026 unsigned int segment_count; /* total # of segments */
1027 unsigned int main_segments; /* # of segments in main area */
1028 unsigned int reserved_segments; /* # of reserved segments */
1029 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1030 unsigned int ovp_segments; /* # of overprovision segments */
1032 /* a threshold to reclaim prefree segments */
1033 unsigned int rec_prefree_segments;
1035 /* for batched trimming */
1036 unsigned int trim_sections; /* # of sections to trim */
1038 struct list_head sit_entry_set; /* sit entry set list */
1040 unsigned int ipu_policy; /* in-place-update policy */
1041 unsigned int min_ipu_util; /* in-place-update threshold */
1042 unsigned int min_fsync_blocks; /* threshold for fsync */
1043 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1044 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1045 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1047 /* for flush command control */
1048 struct flush_cmd_control *fcc_info;
1050 /* for discard command control */
1051 struct discard_cmd_control *dcc_info;
1058 * COUNT_TYPE for monitoring
1060 * f2fs monitors the number of several block types such as on-writeback,
1061 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1063 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1083 * The below are the page types of bios used in submit_bio().
1084 * The available types are:
1085 * DATA User data pages. It operates as async mode.
1086 * NODE Node pages. It operates as async mode.
1087 * META FS metadata pages such as SIT, NAT, CP.
1088 * NR_PAGE_TYPE The number of page types.
1089 * META_FLUSH Make sure the previous pages are written
1090 * with waiting the bio's completion
1091 * ... Only can be used with META.
1093 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1100 INMEM, /* the below types are used by tracepoints only. */
1109 HOT = 0, /* must be zero for meta bio */
1115 enum need_lock_type {
1121 enum cp_reason_type {
1137 APP_DIRECT_IO, /* app direct write IOs */
1138 APP_BUFFERED_IO, /* app buffered write IOs */
1139 APP_WRITE_IO, /* app write IOs */
1140 APP_MAPPED_IO, /* app mapped IOs */
1141 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1142 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1143 FS_META_IO, /* meta IOs from kworker/reclaimer */
1144 FS_GC_DATA_IO, /* data IOs from forground gc */
1145 FS_GC_NODE_IO, /* node IOs from forground gc */
1146 FS_CP_DATA_IO, /* data IOs from checkpoint */
1147 FS_CP_NODE_IO, /* node IOs from checkpoint */
1148 FS_CP_META_IO, /* meta IOs from checkpoint */
1151 APP_DIRECT_READ_IO, /* app direct read IOs */
1152 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1153 APP_READ_IO, /* app read IOs */
1154 APP_MAPPED_READ_IO, /* app mapped read IOs */
1155 FS_DATA_READ_IO, /* data read IOs */
1156 FS_GDATA_READ_IO, /* data read IOs from background gc */
1157 FS_CDATA_READ_IO, /* compressed data read IOs */
1158 FS_NODE_READ_IO, /* node read IOs */
1159 FS_META_READ_IO, /* meta read IOs */
1162 FS_DISCARD, /* discard */
1166 struct f2fs_io_info {
1167 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1168 nid_t ino; /* inode number */
1169 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1170 enum temp_type temp; /* contains HOT/WARM/COLD */
1171 int op; /* contains REQ_OP_ */
1172 int op_flags; /* req_flag_bits */
1173 block_t new_blkaddr; /* new block address to be written */
1174 block_t old_blkaddr; /* old block address before Cow */
1175 struct page *page; /* page to be written */
1176 struct page *encrypted_page; /* encrypted page */
1177 struct page *compressed_page; /* compressed page */
1178 struct list_head list; /* serialize IOs */
1179 bool submitted; /* indicate IO submission */
1180 int need_lock; /* indicate we need to lock cp_rwsem */
1181 bool in_list; /* indicate fio is in io_list */
1182 bool is_por; /* indicate IO is from recovery or not */
1183 bool retry; /* need to reallocate block address */
1184 int compr_blocks; /* # of compressed block addresses */
1185 bool encrypted; /* indicate file is encrypted */
1186 enum iostat_type io_type; /* io type */
1187 struct writeback_control *io_wbc; /* writeback control */
1188 struct bio **bio; /* bio for ipu */
1189 sector_t *last_block; /* last block number in bio */
1190 unsigned char version; /* version of the node */
1195 struct list_head list;
1198 #define is_read_io(rw) ((rw) == READ)
1199 struct f2fs_bio_info {
1200 struct f2fs_sb_info *sbi; /* f2fs superblock */
1201 struct bio *bio; /* bios to merge */
1202 sector_t last_block_in_bio; /* last block number */
1203 struct f2fs_io_info fio; /* store buffered io info. */
1204 struct rw_semaphore io_rwsem; /* blocking op for bio */
1205 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1206 struct list_head io_list; /* track fios */
1207 struct list_head bio_list; /* bio entry list head */
1208 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
1211 #define FDEV(i) (sbi->devs[i])
1212 #define RDEV(i) (raw_super->devs[i])
1213 struct f2fs_dev_info {
1214 struct block_device *bdev;
1215 char path[MAX_PATH_LEN];
1216 unsigned int total_segments;
1219 #ifdef CONFIG_BLK_DEV_ZONED
1220 unsigned int nr_blkz; /* Total number of zones */
1221 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1222 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */
1227 DIR_INODE, /* for dirty dir inode */
1228 FILE_INODE, /* for dirty regular/symlink inode */
1229 DIRTY_META, /* for all dirtied inode metadata */
1230 ATOMIC_FILE, /* for all atomic files */
1234 /* for inner inode cache management */
1235 struct inode_management {
1236 struct radix_tree_root ino_root; /* ino entry array */
1237 spinlock_t ino_lock; /* for ino entry lock */
1238 struct list_head ino_list; /* inode list head */
1239 unsigned long ino_num; /* number of entries */
1243 struct atgc_management {
1244 bool atgc_enabled; /* ATGC is enabled or not */
1245 struct rb_root_cached root; /* root of victim rb-tree */
1246 struct list_head victim_list; /* linked with all victim entries */
1247 unsigned int victim_count; /* victim count in rb-tree */
1248 unsigned int candidate_ratio; /* candidate ratio */
1249 unsigned int max_candidate_count; /* max candidate count */
1250 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1251 unsigned long long age_threshold; /* age threshold */
1254 /* For s_flag in struct f2fs_sb_info */
1256 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1257 SBI_IS_CLOSE, /* specify unmounting */
1258 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1259 SBI_POR_DOING, /* recovery is doing or not */
1260 SBI_NEED_SB_WRITE, /* need to recover superblock */
1261 SBI_NEED_CP, /* need to checkpoint */
1262 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1263 SBI_IS_RECOVERED, /* recovered orphan/data */
1264 SBI_CP_DISABLED, /* CP was disabled last mount */
1265 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1266 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1267 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1268 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1269 SBI_IS_RESIZEFS, /* resizefs is in process */
1278 UMOUNT_DISCARD_TIMEOUT,
1293 BGGC_MODE_ON, /* background gc is on */
1294 BGGC_MODE_OFF, /* background gc is off */
1296 * background gc is on, migrating blocks
1297 * like foreground gc
1302 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1303 FS_MODE_LFS, /* use lfs allocation only */
1304 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1305 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1309 WHINT_MODE_OFF, /* not pass down write hints */
1310 WHINT_MODE_USER, /* try to pass down hints given by users */
1311 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1315 ALLOC_MODE_DEFAULT, /* stay default */
1316 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1320 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1321 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1322 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1327 * automatically compress compression
1331 * automatical compression is disabled.
1332 * user can control the file compression
1338 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1339 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1340 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1343 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1344 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1345 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1348 * Layout of f2fs page.private:
1350 * Layout A: lowest bit should be 1
1351 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1352 * bit 0 PAGE_PRIVATE_NOT_POINTER
1353 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1354 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1355 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1356 * bit 4 PAGE_PRIVATE_INLINE_INODE
1357 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1358 * bit 6- f2fs private data
1360 * Layout B: lowest bit should be 0
1361 * page.private is a wrapped pointer.
1364 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1365 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1366 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1367 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1368 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1369 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1373 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1374 static inline bool page_private_##name(struct page *page) \
1376 return PagePrivate(page) && \
1377 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1378 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1381 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1382 static inline void set_page_private_##name(struct page *page) \
1384 if (!PagePrivate(page)) { \
1386 SetPagePrivate(page); \
1387 set_page_private(page, 0); \
1389 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1390 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1393 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1394 static inline void clear_page_private_##name(struct page *page) \
1396 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1397 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1398 set_page_private(page, 0); \
1399 if (PagePrivate(page)) { \
1400 ClearPagePrivate(page); \
1406 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1407 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1408 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1409 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1410 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1411 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1413 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1414 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1415 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1416 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1417 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1419 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1420 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1421 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1422 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1423 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1425 static inline unsigned long get_page_private_data(struct page *page)
1427 unsigned long data = page_private(page);
1429 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1431 return data >> PAGE_PRIVATE_MAX;
1434 static inline void set_page_private_data(struct page *page, unsigned long data)
1436 if (!PagePrivate(page)) {
1438 SetPagePrivate(page);
1439 set_page_private(page, 0);
1441 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1442 page_private(page) |= data << PAGE_PRIVATE_MAX;
1445 static inline void clear_page_private_data(struct page *page)
1447 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1448 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1449 set_page_private(page, 0);
1450 if (PagePrivate(page)) {
1451 ClearPagePrivate(page);
1457 /* For compression */
1458 enum compress_algorithm_type {
1466 enum compress_flag {
1471 #define COMPRESS_WATERMARK 20
1472 #define COMPRESS_PERCENT 20
1474 #define COMPRESS_DATA_RESERVED_SIZE 4
1475 struct compress_data {
1476 __le32 clen; /* compressed data size */
1477 __le32 chksum; /* compressed data chksum */
1478 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1479 u8 cdata[]; /* compressed data */
1482 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1484 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1486 #define COMPRESS_LEVEL_OFFSET 8
1488 /* compress context */
1489 struct compress_ctx {
1490 struct inode *inode; /* inode the context belong to */
1491 pgoff_t cluster_idx; /* cluster index number */
1492 unsigned int cluster_size; /* page count in cluster */
1493 unsigned int log_cluster_size; /* log of cluster size */
1494 struct page **rpages; /* pages store raw data in cluster */
1495 unsigned int nr_rpages; /* total page number in rpages */
1496 struct page **cpages; /* pages store compressed data in cluster */
1497 unsigned int nr_cpages; /* total page number in cpages */
1498 unsigned int valid_nr_cpages; /* valid page number in cpages */
1499 void *rbuf; /* virtual mapped address on rpages */
1500 struct compress_data *cbuf; /* virtual mapped address on cpages */
1501 size_t rlen; /* valid data length in rbuf */
1502 size_t clen; /* valid data length in cbuf */
1503 void *private; /* payload buffer for specified compression algorithm */
1504 void *private2; /* extra payload buffer */
1507 /* compress context for write IO path */
1508 struct compress_io_ctx {
1509 u32 magic; /* magic number to indicate page is compressed */
1510 struct inode *inode; /* inode the context belong to */
1511 struct page **rpages; /* pages store raw data in cluster */
1512 unsigned int nr_rpages; /* total page number in rpages */
1513 atomic_t pending_pages; /* in-flight compressed page count */
1516 /* Context for decompressing one cluster on the read IO path */
1517 struct decompress_io_ctx {
1518 u32 magic; /* magic number to indicate page is compressed */
1519 struct inode *inode; /* inode the context belong to */
1520 pgoff_t cluster_idx; /* cluster index number */
1521 unsigned int cluster_size; /* page count in cluster */
1522 unsigned int log_cluster_size; /* log of cluster size */
1523 struct page **rpages; /* pages store raw data in cluster */
1524 unsigned int nr_rpages; /* total page number in rpages */
1525 struct page **cpages; /* pages store compressed data in cluster */
1526 unsigned int nr_cpages; /* total page number in cpages */
1527 struct page **tpages; /* temp pages to pad holes in cluster */
1528 void *rbuf; /* virtual mapped address on rpages */
1529 struct compress_data *cbuf; /* virtual mapped address on cpages */
1530 size_t rlen; /* valid data length in rbuf */
1531 size_t clen; /* valid data length in cbuf */
1534 * The number of compressed pages remaining to be read in this cluster.
1535 * This is initially nr_cpages. It is decremented by 1 each time a page
1536 * has been read (or failed to be read). When it reaches 0, the cluster
1537 * is decompressed (or an error is reported).
1539 * If an error occurs before all the pages have been submitted for I/O,
1540 * then this will never reach 0. In this case the I/O submitter is
1541 * responsible for calling f2fs_decompress_end_io() instead.
1543 atomic_t remaining_pages;
1546 * Number of references to this decompress_io_ctx.
1548 * One reference is held for I/O completion. This reference is dropped
1549 * after the pagecache pages are updated and unlocked -- either after
1550 * decompression (and verity if enabled), or after an error.
1552 * In addition, each compressed page holds a reference while it is in a
1553 * bio. These references are necessary prevent compressed pages from
1554 * being freed while they are still in a bio.
1558 bool failed; /* IO error occurred before decompression? */
1559 bool need_verity; /* need fs-verity verification after decompression? */
1560 void *private; /* payload buffer for specified decompression algorithm */
1561 void *private2; /* extra payload buffer */
1562 struct work_struct verity_work; /* work to verify the decompressed pages */
1565 #define NULL_CLUSTER ((unsigned int)(~0))
1566 #define MIN_COMPRESS_LOG_SIZE 2
1567 #define MAX_COMPRESS_LOG_SIZE 8
1568 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1570 struct f2fs_sb_info {
1571 struct super_block *sb; /* pointer to VFS super block */
1572 struct proc_dir_entry *s_proc; /* proc entry */
1573 struct f2fs_super_block *raw_super; /* raw super block pointer */
1574 struct rw_semaphore sb_lock; /* lock for raw super block */
1575 int valid_super_block; /* valid super block no */
1576 unsigned long s_flag; /* flags for sbi */
1577 struct mutex writepages; /* mutex for writepages() */
1579 #ifdef CONFIG_BLK_DEV_ZONED
1580 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1581 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1584 /* for node-related operations */
1585 struct f2fs_nm_info *nm_info; /* node manager */
1586 struct inode *node_inode; /* cache node blocks */
1588 /* for segment-related operations */
1589 struct f2fs_sm_info *sm_info; /* segment manager */
1591 /* for bio operations */
1592 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1593 /* keep migration IO order for LFS mode */
1594 struct rw_semaphore io_order_lock;
1595 mempool_t *write_io_dummy; /* Dummy pages */
1597 /* for checkpoint */
1598 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1599 int cur_cp_pack; /* remain current cp pack */
1600 spinlock_t cp_lock; /* for flag in ckpt */
1601 struct inode *meta_inode; /* cache meta blocks */
1602 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */
1603 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1604 struct rw_semaphore node_write; /* locking node writes */
1605 struct rw_semaphore node_change; /* locking node change */
1606 wait_queue_head_t cp_wait;
1607 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1608 long interval_time[MAX_TIME]; /* to store thresholds */
1609 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1611 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1613 spinlock_t fsync_node_lock; /* for node entry lock */
1614 struct list_head fsync_node_list; /* node list head */
1615 unsigned int fsync_seg_id; /* sequence id */
1616 unsigned int fsync_node_num; /* number of node entries */
1618 /* for orphan inode, use 0'th array */
1619 unsigned int max_orphans; /* max orphan inodes */
1621 /* for inode management */
1622 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1623 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1624 struct mutex flush_lock; /* for flush exclusion */
1626 /* for extent tree cache */
1627 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1628 struct mutex extent_tree_lock; /* locking extent radix tree */
1629 struct list_head extent_list; /* lru list for shrinker */
1630 spinlock_t extent_lock; /* locking extent lru list */
1631 atomic_t total_ext_tree; /* extent tree count */
1632 struct list_head zombie_list; /* extent zombie tree list */
1633 atomic_t total_zombie_tree; /* extent zombie tree count */
1634 atomic_t total_ext_node; /* extent info count */
1636 /* basic filesystem units */
1637 unsigned int log_sectors_per_block; /* log2 sectors per block */
1638 unsigned int log_blocksize; /* log2 block size */
1639 unsigned int blocksize; /* block size */
1640 unsigned int root_ino_num; /* root inode number*/
1641 unsigned int node_ino_num; /* node inode number*/
1642 unsigned int meta_ino_num; /* meta inode number*/
1643 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1644 unsigned int blocks_per_seg; /* blocks per segment */
1645 unsigned int segs_per_sec; /* segments per section */
1646 unsigned int secs_per_zone; /* sections per zone */
1647 unsigned int total_sections; /* total section count */
1648 unsigned int total_node_count; /* total node block count */
1649 unsigned int total_valid_node_count; /* valid node block count */
1650 int dir_level; /* directory level */
1651 int readdir_ra; /* readahead inode in readdir */
1652 u64 max_io_bytes; /* max io bytes to merge IOs */
1654 block_t user_block_count; /* # of user blocks */
1655 block_t total_valid_block_count; /* # of valid blocks */
1656 block_t discard_blks; /* discard command candidats */
1657 block_t last_valid_block_count; /* for recovery */
1658 block_t reserved_blocks; /* configurable reserved blocks */
1659 block_t current_reserved_blocks; /* current reserved blocks */
1661 /* Additional tracking for no checkpoint mode */
1662 block_t unusable_block_count; /* # of blocks saved by last cp */
1664 unsigned int nquota_files; /* # of quota sysfile */
1665 struct rw_semaphore quota_sem; /* blocking cp for flags */
1667 /* # of pages, see count_type */
1668 atomic_t nr_pages[NR_COUNT_TYPE];
1669 /* # of allocated blocks */
1670 struct percpu_counter alloc_valid_block_count;
1672 /* writeback control */
1673 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1675 /* valid inode count */
1676 struct percpu_counter total_valid_inode_count;
1678 struct f2fs_mount_info mount_opt; /* mount options */
1680 /* for cleaning operations */
1681 struct rw_semaphore gc_lock; /*
1682 * semaphore for GC, avoid
1683 * race between GC and GC or CP
1685 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1686 struct atgc_management am; /* atgc management */
1687 unsigned int cur_victim_sec; /* current victim section num */
1688 unsigned int gc_mode; /* current GC state */
1689 unsigned int next_victim_seg[2]; /* next segment in victim section */
1690 spinlock_t gc_urgent_high_lock;
1691 bool gc_urgent_high_limited; /* indicates having limited trial count */
1692 unsigned int gc_urgent_high_remaining; /* remaining trial count for GC_URGENT_HIGH */
1694 /* for skip statistic */
1695 unsigned int atomic_files; /* # of opened atomic file */
1696 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1697 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1699 /* threshold for gc trials on pinned files */
1700 u64 gc_pin_file_threshold;
1701 struct rw_semaphore pin_sem;
1703 /* maximum # of trials to find a victim segment for SSR and GC */
1704 unsigned int max_victim_search;
1705 /* migration granularity of garbage collection, unit: segment */
1706 unsigned int migration_granularity;
1709 * for stat information.
1710 * one is for the LFS mode, and the other is for the SSR mode.
1712 #ifdef CONFIG_F2FS_STAT_FS
1713 struct f2fs_stat_info *stat_info; /* FS status information */
1714 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1715 unsigned int segment_count[2]; /* # of allocated segments */
1716 unsigned int block_count[2]; /* # of allocated blocks */
1717 atomic_t inplace_count; /* # of inplace update */
1718 atomic64_t total_hit_ext; /* # of lookup extent cache */
1719 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1720 atomic64_t read_hit_largest; /* # of hit largest extent node */
1721 atomic64_t read_hit_cached; /* # of hit cached extent node */
1722 atomic_t inline_xattr; /* # of inline_xattr inodes */
1723 atomic_t inline_inode; /* # of inline_data inodes */
1724 atomic_t inline_dir; /* # of inline_dentry inodes */
1725 atomic_t compr_inode; /* # of compressed inodes */
1726 atomic64_t compr_blocks; /* # of compressed blocks */
1727 atomic_t vw_cnt; /* # of volatile writes */
1728 atomic_t max_aw_cnt; /* max # of atomic writes */
1729 atomic_t max_vw_cnt; /* max # of volatile writes */
1730 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1731 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1732 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1734 spinlock_t stat_lock; /* lock for stat operations */
1736 /* to attach REQ_META|REQ_FUA flags */
1737 unsigned int data_io_flag;
1738 unsigned int node_io_flag;
1740 /* For sysfs suppport */
1741 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1742 struct completion s_kobj_unregister;
1744 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1745 struct completion s_stat_kobj_unregister;
1747 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1748 struct completion s_feature_list_kobj_unregister;
1750 /* For shrinker support */
1751 struct list_head s_list;
1752 struct mutex umount_mutex;
1753 unsigned int shrinker_run_no;
1755 /* For multi devices */
1756 int s_ndevs; /* number of devices */
1757 struct f2fs_dev_info *devs; /* for device list */
1758 unsigned int dirty_device; /* for checkpoint data flush */
1759 spinlock_t dev_lock; /* protect dirty_device */
1760 bool aligned_blksize; /* all devices has the same logical blksize */
1762 /* For write statistics */
1763 u64 sectors_written_start;
1766 /* Reference to checksum algorithm driver via cryptoapi */
1767 struct crypto_shash *s_chksum_driver;
1769 /* Precomputed FS UUID checksum for seeding other checksums */
1770 __u32 s_chksum_seed;
1772 struct workqueue_struct *post_read_wq; /* post read workqueue */
1774 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1775 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1777 /* For reclaimed segs statistics per each GC mode */
1778 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1779 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1781 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1783 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1784 int max_fragment_hole; /* max hole size for block fragmentation mode */
1786 #ifdef CONFIG_F2FS_FS_COMPRESSION
1787 struct kmem_cache *page_array_slab; /* page array entry */
1788 unsigned int page_array_slab_size; /* default page array slab size */
1790 /* For runtime compression statistics */
1791 u64 compr_written_block;
1792 u64 compr_saved_block;
1793 u32 compr_new_inode;
1795 /* For compressed block cache */
1796 struct inode *compress_inode; /* cache compressed blocks */
1797 unsigned int compress_percent; /* cache page percentage */
1798 unsigned int compress_watermark; /* cache page watermark */
1799 atomic_t compress_page_hit; /* cache hit count */
1802 #ifdef CONFIG_F2FS_IOSTAT
1803 /* For app/fs IO statistics */
1804 spinlock_t iostat_lock;
1805 unsigned long long rw_iostat[NR_IO_TYPE];
1806 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1808 unsigned long iostat_next_period;
1809 unsigned int iostat_period_ms;
1811 /* For io latency related statistics info in one iostat period */
1812 spinlock_t iostat_lat_lock;
1813 struct iostat_lat_info *iostat_io_lat;
1817 #ifdef CONFIG_F2FS_FAULT_INJECTION
1818 #define f2fs_show_injection_info(sbi, type) \
1819 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1820 KERN_INFO, sbi->sb->s_id, \
1821 f2fs_fault_name[type], \
1822 __func__, __builtin_return_address(0))
1823 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1825 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1827 if (!ffi->inject_rate)
1830 if (!IS_FAULT_SET(ffi, type))
1833 atomic_inc(&ffi->inject_ops);
1834 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1835 atomic_set(&ffi->inject_ops, 0);
1841 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1842 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1849 * Test if the mounted volume is a multi-device volume.
1850 * - For a single regular disk volume, sbi->s_ndevs is 0.
1851 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1852 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1854 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1856 return sbi->s_ndevs > 1;
1859 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1861 unsigned long now = jiffies;
1863 sbi->last_time[type] = now;
1865 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1866 if (type == REQ_TIME) {
1867 sbi->last_time[DISCARD_TIME] = now;
1868 sbi->last_time[GC_TIME] = now;
1872 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1874 unsigned long interval = sbi->interval_time[type] * HZ;
1876 return time_after(jiffies, sbi->last_time[type] + interval);
1879 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1882 unsigned long interval = sbi->interval_time[type] * HZ;
1883 unsigned int wait_ms = 0;
1886 delta = (sbi->last_time[type] + interval) - jiffies;
1888 wait_ms = jiffies_to_msecs(delta);
1896 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1897 const void *address, unsigned int length)
1900 struct shash_desc shash;
1905 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1907 desc.shash.tfm = sbi->s_chksum_driver;
1908 *(u32 *)desc.ctx = crc;
1910 err = crypto_shash_update(&desc.shash, address, length);
1913 return *(u32 *)desc.ctx;
1916 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1917 unsigned int length)
1919 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1922 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1923 void *buf, size_t buf_size)
1925 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1928 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1929 const void *address, unsigned int length)
1931 return __f2fs_crc32(sbi, crc, address, length);
1934 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1936 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1939 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1941 return sb->s_fs_info;
1944 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1946 return F2FS_SB(inode->i_sb);
1949 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1951 return F2FS_I_SB(mapping->host);
1954 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1956 return F2FS_M_SB(page_file_mapping(page));
1959 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1961 return (struct f2fs_super_block *)(sbi->raw_super);
1964 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1966 return (struct f2fs_checkpoint *)(sbi->ckpt);
1969 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1971 return (struct f2fs_node *)page_address(page);
1974 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1976 return &((struct f2fs_node *)page_address(page))->i;
1979 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1981 return (struct f2fs_nm_info *)(sbi->nm_info);
1984 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1986 return (struct f2fs_sm_info *)(sbi->sm_info);
1989 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1991 return (struct sit_info *)(SM_I(sbi)->sit_info);
1994 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1996 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1999 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
2001 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
2004 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
2006 return sbi->meta_inode->i_mapping;
2009 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2011 return sbi->node_inode->i_mapping;
2014 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2016 return test_bit(type, &sbi->s_flag);
2019 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2021 set_bit(type, &sbi->s_flag);
2024 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2026 clear_bit(type, &sbi->s_flag);
2029 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2031 return le64_to_cpu(cp->checkpoint_ver);
2034 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2036 if (type < F2FS_MAX_QUOTAS)
2037 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2041 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2043 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2044 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2047 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2049 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2051 return ckpt_flags & f;
2054 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2056 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2059 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2061 unsigned int ckpt_flags;
2063 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2065 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2068 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2070 unsigned long flags;
2072 spin_lock_irqsave(&sbi->cp_lock, flags);
2073 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2074 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2077 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2079 unsigned int ckpt_flags;
2081 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2083 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2086 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2088 unsigned long flags;
2090 spin_lock_irqsave(&sbi->cp_lock, flags);
2091 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2092 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2095 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2097 down_read(&sbi->cp_rwsem);
2100 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2102 if (time_to_inject(sbi, FAULT_LOCK_OP)) {
2103 f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
2106 return down_read_trylock(&sbi->cp_rwsem);
2109 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2111 up_read(&sbi->cp_rwsem);
2114 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2116 down_write(&sbi->cp_rwsem);
2119 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2121 up_write(&sbi->cp_rwsem);
2124 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2126 int reason = CP_SYNC;
2128 if (test_opt(sbi, FASTBOOT))
2129 reason = CP_FASTBOOT;
2130 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2135 static inline bool __remain_node_summaries(int reason)
2137 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2140 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2142 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2143 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2147 * Check whether the inode has blocks or not
2149 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2151 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2153 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2156 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2158 return ofs == XATTR_NODE_OFFSET;
2161 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2162 struct inode *inode, bool cap)
2166 if (!test_opt(sbi, RESERVE_ROOT))
2168 if (IS_NOQUOTA(inode))
2170 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2172 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2173 in_group_p(F2FS_OPTION(sbi).s_resgid))
2175 if (cap && capable(CAP_SYS_RESOURCE))
2180 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2181 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2182 struct inode *inode, blkcnt_t *count)
2184 blkcnt_t diff = 0, release = 0;
2185 block_t avail_user_block_count;
2188 ret = dquot_reserve_block(inode, *count);
2192 if (time_to_inject(sbi, FAULT_BLOCK)) {
2193 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2199 * let's increase this in prior to actual block count change in order
2200 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2202 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2204 spin_lock(&sbi->stat_lock);
2205 sbi->total_valid_block_count += (block_t)(*count);
2206 avail_user_block_count = sbi->user_block_count -
2207 sbi->current_reserved_blocks;
2209 if (!__allow_reserved_blocks(sbi, inode, true))
2210 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2212 if (F2FS_IO_ALIGNED(sbi))
2213 avail_user_block_count -= sbi->blocks_per_seg *
2214 SM_I(sbi)->additional_reserved_segments;
2216 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2217 if (avail_user_block_count > sbi->unusable_block_count)
2218 avail_user_block_count -= sbi->unusable_block_count;
2220 avail_user_block_count = 0;
2222 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2223 diff = sbi->total_valid_block_count - avail_user_block_count;
2228 sbi->total_valid_block_count -= diff;
2230 spin_unlock(&sbi->stat_lock);
2234 spin_unlock(&sbi->stat_lock);
2236 if (unlikely(release)) {
2237 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2238 dquot_release_reservation_block(inode, release);
2240 f2fs_i_blocks_write(inode, *count, true, true);
2244 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2246 dquot_release_reservation_block(inode, release);
2251 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2253 #define f2fs_err(sbi, fmt, ...) \
2254 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2255 #define f2fs_warn(sbi, fmt, ...) \
2256 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2257 #define f2fs_notice(sbi, fmt, ...) \
2258 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2259 #define f2fs_info(sbi, fmt, ...) \
2260 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2261 #define f2fs_debug(sbi, fmt, ...) \
2262 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2264 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2265 struct inode *inode,
2268 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2270 spin_lock(&sbi->stat_lock);
2271 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2272 sbi->total_valid_block_count -= (block_t)count;
2273 if (sbi->reserved_blocks &&
2274 sbi->current_reserved_blocks < sbi->reserved_blocks)
2275 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2276 sbi->current_reserved_blocks + count);
2277 spin_unlock(&sbi->stat_lock);
2278 if (unlikely(inode->i_blocks < sectors)) {
2279 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2281 (unsigned long long)inode->i_blocks,
2282 (unsigned long long)sectors);
2283 set_sbi_flag(sbi, SBI_NEED_FSCK);
2286 f2fs_i_blocks_write(inode, count, false, true);
2289 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2291 atomic_inc(&sbi->nr_pages[count_type]);
2293 if (count_type == F2FS_DIRTY_DENTS ||
2294 count_type == F2FS_DIRTY_NODES ||
2295 count_type == F2FS_DIRTY_META ||
2296 count_type == F2FS_DIRTY_QDATA ||
2297 count_type == F2FS_DIRTY_IMETA)
2298 set_sbi_flag(sbi, SBI_IS_DIRTY);
2301 static inline void inode_inc_dirty_pages(struct inode *inode)
2303 atomic_inc(&F2FS_I(inode)->dirty_pages);
2304 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2305 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2306 if (IS_NOQUOTA(inode))
2307 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2310 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2312 atomic_dec(&sbi->nr_pages[count_type]);
2315 static inline void inode_dec_dirty_pages(struct inode *inode)
2317 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2318 !S_ISLNK(inode->i_mode))
2321 atomic_dec(&F2FS_I(inode)->dirty_pages);
2322 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2323 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2324 if (IS_NOQUOTA(inode))
2325 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2328 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2330 return atomic_read(&sbi->nr_pages[count_type]);
2333 static inline int get_dirty_pages(struct inode *inode)
2335 return atomic_read(&F2FS_I(inode)->dirty_pages);
2338 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2340 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2341 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2342 sbi->log_blocks_per_seg;
2344 return segs / sbi->segs_per_sec;
2347 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2349 return sbi->total_valid_block_count;
2352 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2354 return sbi->discard_blks;
2357 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2359 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2361 /* return NAT or SIT bitmap */
2362 if (flag == NAT_BITMAP)
2363 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2364 else if (flag == SIT_BITMAP)
2365 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2370 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2372 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2375 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2377 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2378 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2381 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2382 offset = (flag == SIT_BITMAP) ?
2383 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2385 * if large_nat_bitmap feature is enabled, leave checksum
2386 * protection for all nat/sit bitmaps.
2388 return tmp_ptr + offset + sizeof(__le32);
2391 if (__cp_payload(sbi) > 0) {
2392 if (flag == NAT_BITMAP)
2393 return &ckpt->sit_nat_version_bitmap;
2395 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2397 offset = (flag == NAT_BITMAP) ?
2398 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2399 return tmp_ptr + offset;
2403 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2405 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2407 if (sbi->cur_cp_pack == 2)
2408 start_addr += sbi->blocks_per_seg;
2412 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2414 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2416 if (sbi->cur_cp_pack == 1)
2417 start_addr += sbi->blocks_per_seg;
2421 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2423 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2426 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2428 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2431 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2432 struct inode *inode, bool is_inode)
2434 block_t valid_block_count;
2435 unsigned int valid_node_count, user_block_count;
2440 err = dquot_alloc_inode(inode);
2445 err = dquot_reserve_block(inode, 1);
2450 if (time_to_inject(sbi, FAULT_BLOCK)) {
2451 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2455 spin_lock(&sbi->stat_lock);
2457 valid_block_count = sbi->total_valid_block_count +
2458 sbi->current_reserved_blocks + 1;
2460 if (!__allow_reserved_blocks(sbi, inode, false))
2461 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2463 if (F2FS_IO_ALIGNED(sbi))
2464 valid_block_count += sbi->blocks_per_seg *
2465 SM_I(sbi)->additional_reserved_segments;
2467 user_block_count = sbi->user_block_count;
2468 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2469 user_block_count -= sbi->unusable_block_count;
2471 if (unlikely(valid_block_count > user_block_count)) {
2472 spin_unlock(&sbi->stat_lock);
2476 valid_node_count = sbi->total_valid_node_count + 1;
2477 if (unlikely(valid_node_count > sbi->total_node_count)) {
2478 spin_unlock(&sbi->stat_lock);
2482 sbi->total_valid_node_count++;
2483 sbi->total_valid_block_count++;
2484 spin_unlock(&sbi->stat_lock);
2488 f2fs_mark_inode_dirty_sync(inode, true);
2490 f2fs_i_blocks_write(inode, 1, true, true);
2493 percpu_counter_inc(&sbi->alloc_valid_block_count);
2499 dquot_free_inode(inode);
2501 dquot_release_reservation_block(inode, 1);
2506 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2507 struct inode *inode, bool is_inode)
2509 spin_lock(&sbi->stat_lock);
2511 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2512 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2514 sbi->total_valid_node_count--;
2515 sbi->total_valid_block_count--;
2516 if (sbi->reserved_blocks &&
2517 sbi->current_reserved_blocks < sbi->reserved_blocks)
2518 sbi->current_reserved_blocks++;
2520 spin_unlock(&sbi->stat_lock);
2523 dquot_free_inode(inode);
2525 if (unlikely(inode->i_blocks == 0)) {
2526 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2528 (unsigned long long)inode->i_blocks);
2529 set_sbi_flag(sbi, SBI_NEED_FSCK);
2532 f2fs_i_blocks_write(inode, 1, false, true);
2536 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2538 return sbi->total_valid_node_count;
2541 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2543 percpu_counter_inc(&sbi->total_valid_inode_count);
2546 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2548 percpu_counter_dec(&sbi->total_valid_inode_count);
2551 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2553 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2556 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2557 pgoff_t index, bool for_write)
2561 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2563 page = find_get_page_flags(mapping, index,
2564 FGP_LOCK | FGP_ACCESSED);
2566 page = find_lock_page(mapping, index);
2570 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2571 f2fs_show_injection_info(F2FS_M_SB(mapping),
2578 return grab_cache_page(mapping, index);
2579 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2582 static inline struct page *f2fs_pagecache_get_page(
2583 struct address_space *mapping, pgoff_t index,
2584 int fgp_flags, gfp_t gfp_mask)
2586 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2587 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2591 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2594 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2596 char *src_kaddr = kmap(src);
2597 char *dst_kaddr = kmap(dst);
2599 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2604 static inline void f2fs_put_page(struct page *page, int unlock)
2610 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2616 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2619 f2fs_put_page(dn->node_page, 1);
2620 if (dn->inode_page && dn->node_page != dn->inode_page)
2621 f2fs_put_page(dn->inode_page, 0);
2622 dn->node_page = NULL;
2623 dn->inode_page = NULL;
2626 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2629 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2632 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2637 entry = kmem_cache_alloc(cachep, flags);
2639 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2643 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2644 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2647 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2649 if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
2650 f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
2654 return kmem_cache_alloc(cachep, flags);
2657 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2659 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2660 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2661 get_pages(sbi, F2FS_WB_CP_DATA) ||
2662 get_pages(sbi, F2FS_DIO_READ) ||
2663 get_pages(sbi, F2FS_DIO_WRITE))
2666 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2667 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2670 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2671 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2676 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2678 if (sbi->gc_mode == GC_URGENT_HIGH)
2681 if (is_inflight_io(sbi, type))
2684 if (sbi->gc_mode == GC_URGENT_LOW &&
2685 (type == DISCARD_TIME || type == GC_TIME))
2688 return f2fs_time_over(sbi, type);
2691 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2692 unsigned long index, void *item)
2694 while (radix_tree_insert(root, index, item))
2698 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2700 static inline bool IS_INODE(struct page *page)
2702 struct f2fs_node *p = F2FS_NODE(page);
2704 return RAW_IS_INODE(p);
2707 static inline int offset_in_addr(struct f2fs_inode *i)
2709 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2710 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2713 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2715 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2718 static inline int f2fs_has_extra_attr(struct inode *inode);
2719 static inline block_t data_blkaddr(struct inode *inode,
2720 struct page *node_page, unsigned int offset)
2722 struct f2fs_node *raw_node;
2725 bool is_inode = IS_INODE(node_page);
2727 raw_node = F2FS_NODE(node_page);
2731 /* from GC path only */
2732 base = offset_in_addr(&raw_node->i);
2733 else if (f2fs_has_extra_attr(inode))
2734 base = get_extra_isize(inode);
2737 addr_array = blkaddr_in_node(raw_node);
2738 return le32_to_cpu(addr_array[base + offset]);
2741 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2743 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2746 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2751 mask = 1 << (7 - (nr & 0x07));
2752 return mask & *addr;
2755 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2760 mask = 1 << (7 - (nr & 0x07));
2764 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2769 mask = 1 << (7 - (nr & 0x07));
2773 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2779 mask = 1 << (7 - (nr & 0x07));
2785 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2791 mask = 1 << (7 - (nr & 0x07));
2797 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2802 mask = 1 << (7 - (nr & 0x07));
2807 * On-disk inode flags (f2fs_inode::i_flags)
2809 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2810 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2811 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2812 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2813 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2814 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2815 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2816 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2817 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2818 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2819 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2821 /* Flags that should be inherited by new inodes from their parent. */
2822 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2823 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2824 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2826 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2827 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2830 /* Flags that are appropriate for non-directories/regular files. */
2831 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2833 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2837 else if (S_ISREG(mode))
2838 return flags & F2FS_REG_FLMASK;
2840 return flags & F2FS_OTHER_FLMASK;
2843 static inline void __mark_inode_dirty_flag(struct inode *inode,
2847 case FI_INLINE_XATTR:
2848 case FI_INLINE_DATA:
2849 case FI_INLINE_DENTRY:
2855 case FI_INLINE_DOTS:
2857 case FI_COMPRESS_RELEASED:
2858 f2fs_mark_inode_dirty_sync(inode, true);
2862 static inline void set_inode_flag(struct inode *inode, int flag)
2864 set_bit(flag, F2FS_I(inode)->flags);
2865 __mark_inode_dirty_flag(inode, flag, true);
2868 static inline int is_inode_flag_set(struct inode *inode, int flag)
2870 return test_bit(flag, F2FS_I(inode)->flags);
2873 static inline void clear_inode_flag(struct inode *inode, int flag)
2875 clear_bit(flag, F2FS_I(inode)->flags);
2876 __mark_inode_dirty_flag(inode, flag, false);
2879 static inline bool f2fs_verity_in_progress(struct inode *inode)
2881 return IS_ENABLED(CONFIG_FS_VERITY) &&
2882 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2885 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2887 F2FS_I(inode)->i_acl_mode = mode;
2888 set_inode_flag(inode, FI_ACL_MODE);
2889 f2fs_mark_inode_dirty_sync(inode, false);
2892 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2898 f2fs_mark_inode_dirty_sync(inode, true);
2901 static inline void f2fs_i_blocks_write(struct inode *inode,
2902 block_t diff, bool add, bool claim)
2904 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2905 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2907 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2910 dquot_claim_block(inode, diff);
2912 dquot_alloc_block_nofail(inode, diff);
2914 dquot_free_block(inode, diff);
2917 f2fs_mark_inode_dirty_sync(inode, true);
2918 if (clean || recover)
2919 set_inode_flag(inode, FI_AUTO_RECOVER);
2922 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2924 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2925 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2927 if (i_size_read(inode) == i_size)
2930 i_size_write(inode, i_size);
2931 f2fs_mark_inode_dirty_sync(inode, true);
2932 if (clean || recover)
2933 set_inode_flag(inode, FI_AUTO_RECOVER);
2936 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2938 F2FS_I(inode)->i_current_depth = depth;
2939 f2fs_mark_inode_dirty_sync(inode, true);
2942 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2945 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2946 f2fs_mark_inode_dirty_sync(inode, true);
2949 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2951 F2FS_I(inode)->i_xattr_nid = xnid;
2952 f2fs_mark_inode_dirty_sync(inode, true);
2955 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2957 F2FS_I(inode)->i_pino = pino;
2958 f2fs_mark_inode_dirty_sync(inode, true);
2961 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2963 struct f2fs_inode_info *fi = F2FS_I(inode);
2965 if (ri->i_inline & F2FS_INLINE_XATTR)
2966 set_bit(FI_INLINE_XATTR, fi->flags);
2967 if (ri->i_inline & F2FS_INLINE_DATA)
2968 set_bit(FI_INLINE_DATA, fi->flags);
2969 if (ri->i_inline & F2FS_INLINE_DENTRY)
2970 set_bit(FI_INLINE_DENTRY, fi->flags);
2971 if (ri->i_inline & F2FS_DATA_EXIST)
2972 set_bit(FI_DATA_EXIST, fi->flags);
2973 if (ri->i_inline & F2FS_INLINE_DOTS)
2974 set_bit(FI_INLINE_DOTS, fi->flags);
2975 if (ri->i_inline & F2FS_EXTRA_ATTR)
2976 set_bit(FI_EXTRA_ATTR, fi->flags);
2977 if (ri->i_inline & F2FS_PIN_FILE)
2978 set_bit(FI_PIN_FILE, fi->flags);
2979 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
2980 set_bit(FI_COMPRESS_RELEASED, fi->flags);
2983 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2987 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2988 ri->i_inline |= F2FS_INLINE_XATTR;
2989 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2990 ri->i_inline |= F2FS_INLINE_DATA;
2991 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2992 ri->i_inline |= F2FS_INLINE_DENTRY;
2993 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2994 ri->i_inline |= F2FS_DATA_EXIST;
2995 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2996 ri->i_inline |= F2FS_INLINE_DOTS;
2997 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2998 ri->i_inline |= F2FS_EXTRA_ATTR;
2999 if (is_inode_flag_set(inode, FI_PIN_FILE))
3000 ri->i_inline |= F2FS_PIN_FILE;
3001 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
3002 ri->i_inline |= F2FS_COMPRESS_RELEASED;
3005 static inline int f2fs_has_extra_attr(struct inode *inode)
3007 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3010 static inline int f2fs_has_inline_xattr(struct inode *inode)
3012 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3015 static inline int f2fs_compressed_file(struct inode *inode)
3017 return S_ISREG(inode->i_mode) &&
3018 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3021 static inline bool f2fs_need_compress_data(struct inode *inode)
3023 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3025 if (!f2fs_compressed_file(inode))
3028 if (compress_mode == COMPR_MODE_FS)
3030 else if (compress_mode == COMPR_MODE_USER &&
3031 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3037 static inline unsigned int addrs_per_inode(struct inode *inode)
3039 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3040 get_inline_xattr_addrs(inode);
3042 if (!f2fs_compressed_file(inode))
3044 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3047 static inline unsigned int addrs_per_block(struct inode *inode)
3049 if (!f2fs_compressed_file(inode))
3050 return DEF_ADDRS_PER_BLOCK;
3051 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3054 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3056 struct f2fs_inode *ri = F2FS_INODE(page);
3058 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3059 get_inline_xattr_addrs(inode)]);
3062 static inline int inline_xattr_size(struct inode *inode)
3064 if (f2fs_has_inline_xattr(inode))
3065 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3069 static inline int f2fs_has_inline_data(struct inode *inode)
3071 return is_inode_flag_set(inode, FI_INLINE_DATA);
3074 static inline int f2fs_exist_data(struct inode *inode)
3076 return is_inode_flag_set(inode, FI_DATA_EXIST);
3079 static inline int f2fs_has_inline_dots(struct inode *inode)
3081 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3084 static inline int f2fs_is_mmap_file(struct inode *inode)
3086 return is_inode_flag_set(inode, FI_MMAP_FILE);
3089 static inline bool f2fs_is_pinned_file(struct inode *inode)
3091 return is_inode_flag_set(inode, FI_PIN_FILE);
3094 static inline bool f2fs_is_atomic_file(struct inode *inode)
3096 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3099 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
3101 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
3104 static inline bool f2fs_is_volatile_file(struct inode *inode)
3106 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
3109 static inline bool f2fs_is_first_block_written(struct inode *inode)
3111 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3114 static inline bool f2fs_is_drop_cache(struct inode *inode)
3116 return is_inode_flag_set(inode, FI_DROP_CACHE);
3119 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3121 struct f2fs_inode *ri = F2FS_INODE(page);
3122 int extra_size = get_extra_isize(inode);
3124 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3127 static inline int f2fs_has_inline_dentry(struct inode *inode)
3129 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3132 static inline int is_file(struct inode *inode, int type)
3134 return F2FS_I(inode)->i_advise & type;
3137 static inline void set_file(struct inode *inode, int type)
3139 if (is_file(inode, type))
3141 F2FS_I(inode)->i_advise |= type;
3142 f2fs_mark_inode_dirty_sync(inode, true);
3145 static inline void clear_file(struct inode *inode, int type)
3147 if (!is_file(inode, type))
3149 F2FS_I(inode)->i_advise &= ~type;
3150 f2fs_mark_inode_dirty_sync(inode, true);
3153 static inline bool f2fs_is_time_consistent(struct inode *inode)
3155 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3157 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3159 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3161 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3162 &F2FS_I(inode)->i_crtime))
3167 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3172 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3174 spin_lock(&sbi->inode_lock[DIRTY_META]);
3175 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3176 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3179 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3180 file_keep_isize(inode) ||
3181 i_size_read(inode) & ~PAGE_MASK)
3184 if (!f2fs_is_time_consistent(inode))
3187 spin_lock(&F2FS_I(inode)->i_size_lock);
3188 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3189 spin_unlock(&F2FS_I(inode)->i_size_lock);
3194 static inline bool f2fs_readonly(struct super_block *sb)
3196 return sb_rdonly(sb);
3199 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3201 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3204 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3206 if (len == 1 && name[0] == '.')
3209 if (len == 2 && name[0] == '.' && name[1] == '.')
3215 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3216 size_t size, gfp_t flags)
3218 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3219 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3223 return kmalloc(size, flags);
3226 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3227 size_t size, gfp_t flags)
3229 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3232 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3233 size_t size, gfp_t flags)
3235 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3236 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3240 return kvmalloc(size, flags);
3243 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3244 size_t size, gfp_t flags)
3246 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3249 static inline int get_extra_isize(struct inode *inode)
3251 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3254 static inline int get_inline_xattr_addrs(struct inode *inode)
3256 return F2FS_I(inode)->i_inline_xattr_size;
3259 #define f2fs_get_inode_mode(i) \
3260 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3261 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3263 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3264 (offsetof(struct f2fs_inode, i_extra_end) - \
3265 offsetof(struct f2fs_inode, i_extra_isize)) \
3267 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3268 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3269 ((offsetof(typeof(*(f2fs_inode)), field) + \
3270 sizeof((f2fs_inode)->field)) \
3271 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3273 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3275 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3277 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3278 block_t blkaddr, int type);
3279 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3280 block_t blkaddr, int type)
3282 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3283 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3285 f2fs_bug_on(sbi, 1);
3289 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3291 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3292 blkaddr == COMPRESS_ADDR)
3300 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3301 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3302 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3303 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3304 int f2fs_truncate(struct inode *inode);
3305 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3306 struct kstat *stat, u32 request_mask, unsigned int flags);
3307 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3308 struct iattr *attr);
3309 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3310 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3311 int f2fs_precache_extents(struct inode *inode);
3312 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3313 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3314 struct dentry *dentry, struct fileattr *fa);
3315 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3316 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3317 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3318 int f2fs_pin_file_control(struct inode *inode, bool inc);
3323 void f2fs_set_inode_flags(struct inode *inode);
3324 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3325 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3326 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3327 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3328 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3329 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3330 void f2fs_update_inode_page(struct inode *inode);
3331 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3332 void f2fs_evict_inode(struct inode *inode);
3333 void f2fs_handle_failed_inode(struct inode *inode);
3338 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3339 bool hot, bool set);
3340 struct dentry *f2fs_get_parent(struct dentry *child);
3345 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3346 int f2fs_init_casefolded_name(const struct inode *dir,
3347 struct f2fs_filename *fname);
3348 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3349 int lookup, struct f2fs_filename *fname);
3350 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3351 struct f2fs_filename *fname);
3352 void f2fs_free_filename(struct f2fs_filename *fname);
3353 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3354 const struct f2fs_filename *fname, int *max_slots);
3355 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3356 unsigned int start_pos, struct fscrypt_str *fstr);
3357 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3358 struct f2fs_dentry_ptr *d);
3359 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3360 const struct f2fs_filename *fname, struct page *dpage);
3361 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3362 unsigned int current_depth);
3363 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3364 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3365 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3366 const struct f2fs_filename *fname,
3367 struct page **res_page);
3368 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3369 const struct qstr *child, struct page **res_page);
3370 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3371 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3372 struct page **page);
3373 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3374 struct page *page, struct inode *inode);
3375 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3376 const struct f2fs_filename *fname);
3377 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3378 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3379 unsigned int bit_pos);
3380 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3381 struct inode *inode, nid_t ino, umode_t mode);
3382 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3383 struct inode *inode, nid_t ino, umode_t mode);
3384 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3385 struct inode *inode, nid_t ino, umode_t mode);
3386 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3387 struct inode *dir, struct inode *inode);
3388 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3389 bool f2fs_empty_dir(struct inode *dir);
3391 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3393 if (fscrypt_is_nokey_name(dentry))
3395 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3396 inode, inode->i_ino, inode->i_mode);
3402 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3403 void f2fs_inode_synced(struct inode *inode);
3404 int f2fs_dquot_initialize(struct inode *inode);
3405 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3406 int f2fs_quota_sync(struct super_block *sb, int type);
3407 loff_t max_file_blocks(struct inode *inode);
3408 void f2fs_quota_off_umount(struct super_block *sb);
3409 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3410 int f2fs_sync_fs(struct super_block *sb, int sync);
3411 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3416 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3423 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3424 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3425 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3426 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3427 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3428 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3429 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3430 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3431 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3432 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3433 struct node_info *ni, bool checkpoint_context);
3434 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3435 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3436 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3437 int f2fs_truncate_xattr_node(struct inode *inode);
3438 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3439 unsigned int seq_id);
3440 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3441 int f2fs_remove_inode_page(struct inode *inode);
3442 struct page *f2fs_new_inode_page(struct inode *inode);
3443 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3444 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3445 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3446 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3447 int f2fs_move_node_page(struct page *node_page, int gc_type);
3448 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3449 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3450 struct writeback_control *wbc, bool atomic,
3451 unsigned int *seq_id);
3452 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3453 struct writeback_control *wbc,
3454 bool do_balance, enum iostat_type io_type);
3455 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3456 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3457 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3458 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3459 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3460 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3461 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3462 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3463 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3464 unsigned int segno, struct f2fs_summary_block *sum);
3465 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3466 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3467 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3468 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3469 int __init f2fs_create_node_manager_caches(void);
3470 void f2fs_destroy_node_manager_caches(void);
3475 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3476 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3477 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3478 void f2fs_drop_inmem_pages(struct inode *inode);
3479 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3480 int f2fs_commit_inmem_pages(struct inode *inode);
3481 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3482 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3483 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3484 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3485 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3486 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3487 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3488 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3489 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3490 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3491 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3492 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3493 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3494 struct cp_control *cpc);
3495 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3496 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3497 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3498 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3499 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3500 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3501 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3502 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3503 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3504 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3505 unsigned int *newseg, bool new_sec, int dir);
3506 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3507 unsigned int start, unsigned int end);
3508 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3509 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3510 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3511 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3512 struct cp_control *cpc);
3513 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3514 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3516 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3517 enum iostat_type io_type);
3518 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3519 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3520 struct f2fs_io_info *fio);
3521 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3522 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3523 block_t old_blkaddr, block_t new_blkaddr,
3524 bool recover_curseg, bool recover_newaddr,
3526 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3527 block_t old_addr, block_t new_addr,
3528 unsigned char version, bool recover_curseg,
3529 bool recover_newaddr);
3530 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3531 block_t old_blkaddr, block_t *new_blkaddr,
3532 struct f2fs_summary *sum, int type,
3533 struct f2fs_io_info *fio);
3534 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3535 block_t blkaddr, unsigned int blkcnt);
3536 void f2fs_wait_on_page_writeback(struct page *page,
3537 enum page_type type, bool ordered, bool locked);
3538 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3539 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3541 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3542 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3543 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3544 unsigned int val, int alloc);
3545 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3546 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3547 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3548 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3549 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3550 int __init f2fs_create_segment_manager_caches(void);
3551 void f2fs_destroy_segment_manager_caches(void);
3552 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3553 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3554 enum page_type type, enum temp_type temp);
3555 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3556 unsigned int segno);
3557 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3558 unsigned int segno);
3560 #define DEF_FRAGMENT_SIZE 4
3561 #define MIN_FRAGMENT_SIZE 1
3562 #define MAX_FRAGMENT_SIZE 512
3564 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3566 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3567 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3573 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3574 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3575 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3576 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3577 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3578 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3579 block_t blkaddr, int type);
3580 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3581 int type, bool sync);
3582 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3583 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3584 long nr_to_write, enum iostat_type io_type);
3585 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3586 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3587 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3588 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3589 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3590 unsigned int devidx, int type);
3591 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3592 unsigned int devidx, int type);
3593 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3594 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3595 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3596 void f2fs_add_orphan_inode(struct inode *inode);
3597 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3598 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3599 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3600 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3601 void f2fs_remove_dirty_inode(struct inode *inode);
3602 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3603 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3604 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3605 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3606 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3607 int __init f2fs_create_checkpoint_caches(void);
3608 void f2fs_destroy_checkpoint_caches(void);
3609 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3610 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3611 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3612 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3617 int __init f2fs_init_bioset(void);
3618 void f2fs_destroy_bioset(void);
3619 int f2fs_init_bio_entry_cache(void);
3620 void f2fs_destroy_bio_entry_cache(void);
3621 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3622 struct bio *bio, enum page_type type);
3623 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3624 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3625 struct inode *inode, struct page *page,
3626 nid_t ino, enum page_type type);
3627 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3628 struct bio **bio, struct page *page);
3629 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3630 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3631 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3632 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3633 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3634 block_t blk_addr, struct bio *bio);
3635 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3636 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3637 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3638 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3639 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3640 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3641 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3642 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3643 int op_flags, bool for_write);
3644 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3645 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3647 struct page *f2fs_get_new_data_page(struct inode *inode,
3648 struct page *ipage, pgoff_t index, bool new_i_size);
3649 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3650 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3651 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3652 int create, int flag);
3653 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3654 u64 start, u64 len);
3655 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3656 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3657 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3658 int f2fs_write_single_data_page(struct page *page, int *submitted,
3659 struct bio **bio, sector_t *last_block,
3660 struct writeback_control *wbc,
3661 enum iostat_type io_type,
3662 int compr_blocks, bool allow_balance);
3663 void f2fs_write_failed(struct inode *inode, loff_t to);
3664 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3665 unsigned int length);
3666 int f2fs_release_page(struct page *page, gfp_t wait);
3667 #ifdef CONFIG_MIGRATION
3668 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3669 struct page *page, enum migrate_mode mode);
3671 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3672 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3673 int f2fs_init_post_read_processing(void);
3674 void f2fs_destroy_post_read_processing(void);
3675 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3676 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3677 extern const struct iomap_ops f2fs_iomap_ops;
3682 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3683 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3684 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3685 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force,
3686 unsigned int segno);
3687 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3688 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3689 int __init f2fs_create_garbage_collection_cache(void);
3690 void f2fs_destroy_garbage_collection_cache(void);
3695 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3696 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3697 int __init f2fs_create_recovery_cache(void);
3698 void f2fs_destroy_recovery_cache(void);
3703 #ifdef CONFIG_F2FS_STAT_FS
3704 struct f2fs_stat_info {
3705 struct list_head stat_list;
3706 struct f2fs_sb_info *sbi;
3707 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3708 int main_area_segs, main_area_sections, main_area_zones;
3709 unsigned long long hit_largest, hit_cached, hit_rbtree;
3710 unsigned long long hit_total, total_ext;
3711 int ext_tree, zombie_tree, ext_node;
3712 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3713 int ndirty_data, ndirty_qdata;
3715 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3716 int nats, dirty_nats, sits, dirty_sits;
3717 int free_nids, avail_nids, alloc_nids;
3718 int total_count, utilization;
3719 int bg_gc, nr_wb_cp_data, nr_wb_data;
3720 int nr_rd_data, nr_rd_node, nr_rd_meta;
3721 int nr_dio_read, nr_dio_write;
3722 unsigned int io_skip_bggc, other_skip_bggc;
3723 int nr_flushing, nr_flushed, flush_list_empty;
3724 int nr_discarding, nr_discarded;
3726 unsigned int undiscard_blks;
3727 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3728 unsigned int cur_ckpt_time, peak_ckpt_time;
3729 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3731 unsigned long long compr_blocks;
3732 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3733 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3734 unsigned int bimodal, avg_vblocks;
3735 int util_free, util_valid, util_invalid;
3736 int rsvd_segs, overp_segs;
3737 int dirty_count, node_pages, meta_pages, compress_pages;
3738 int compress_page_hit;
3739 int prefree_count, call_count, cp_count, bg_cp_count;
3740 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3741 int bg_node_segs, bg_data_segs;
3742 int tot_blks, data_blks, node_blks;
3743 int bg_data_blks, bg_node_blks;
3744 unsigned long long skipped_atomic_files[2];
3745 int curseg[NR_CURSEG_TYPE];
3746 int cursec[NR_CURSEG_TYPE];
3747 int curzone[NR_CURSEG_TYPE];
3748 unsigned int dirty_seg[NR_CURSEG_TYPE];
3749 unsigned int full_seg[NR_CURSEG_TYPE];
3750 unsigned int valid_blks[NR_CURSEG_TYPE];
3752 unsigned int meta_count[META_MAX];
3753 unsigned int segment_count[2];
3754 unsigned int block_count[2];
3755 unsigned int inplace_count;
3756 unsigned long long base_mem, cache_mem, page_mem;
3759 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3761 return (struct f2fs_stat_info *)sbi->stat_info;
3764 #define stat_inc_cp_count(si) ((si)->cp_count++)
3765 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3766 #define stat_inc_call_count(si) ((si)->call_count++)
3767 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3768 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3769 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3770 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3771 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3772 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3773 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3774 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3775 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3776 #define stat_inc_inline_xattr(inode) \
3778 if (f2fs_has_inline_xattr(inode)) \
3779 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3781 #define stat_dec_inline_xattr(inode) \
3783 if (f2fs_has_inline_xattr(inode)) \
3784 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3786 #define stat_inc_inline_inode(inode) \
3788 if (f2fs_has_inline_data(inode)) \
3789 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3791 #define stat_dec_inline_inode(inode) \
3793 if (f2fs_has_inline_data(inode)) \
3794 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3796 #define stat_inc_inline_dir(inode) \
3798 if (f2fs_has_inline_dentry(inode)) \
3799 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3801 #define stat_dec_inline_dir(inode) \
3803 if (f2fs_has_inline_dentry(inode)) \
3804 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3806 #define stat_inc_compr_inode(inode) \
3808 if (f2fs_compressed_file(inode)) \
3809 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3811 #define stat_dec_compr_inode(inode) \
3813 if (f2fs_compressed_file(inode)) \
3814 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3816 #define stat_add_compr_blocks(inode, blocks) \
3817 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3818 #define stat_sub_compr_blocks(inode, blocks) \
3819 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3820 #define stat_inc_meta_count(sbi, blkaddr) \
3822 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3823 atomic_inc(&(sbi)->meta_count[META_CP]); \
3824 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3825 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3826 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3827 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3828 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3829 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3831 #define stat_inc_seg_type(sbi, curseg) \
3832 ((sbi)->segment_count[(curseg)->alloc_type]++)
3833 #define stat_inc_block_count(sbi, curseg) \
3834 ((sbi)->block_count[(curseg)->alloc_type]++)
3835 #define stat_inc_inplace_blocks(sbi) \
3836 (atomic_inc(&(sbi)->inplace_count))
3837 #define stat_update_max_atomic_write(inode) \
3839 int cur = F2FS_I_SB(inode)->atomic_files; \
3840 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3842 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3844 #define stat_inc_volatile_write(inode) \
3845 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3846 #define stat_dec_volatile_write(inode) \
3847 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3848 #define stat_update_max_volatile_write(inode) \
3850 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3851 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3853 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3855 #define stat_inc_seg_count(sbi, type, gc_type) \
3857 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3859 if ((type) == SUM_TYPE_DATA) { \
3861 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3864 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3868 #define stat_inc_tot_blk_count(si, blks) \
3869 ((si)->tot_blks += (blks))
3871 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3873 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3874 stat_inc_tot_blk_count(si, blks); \
3875 si->data_blks += (blks); \
3876 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3879 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3881 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3882 stat_inc_tot_blk_count(si, blks); \
3883 si->node_blks += (blks); \
3884 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3887 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3888 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3889 void __init f2fs_create_root_stats(void);
3890 void f2fs_destroy_root_stats(void);
3891 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
3893 #define stat_inc_cp_count(si) do { } while (0)
3894 #define stat_inc_bg_cp_count(si) do { } while (0)
3895 #define stat_inc_call_count(si) do { } while (0)
3896 #define stat_inc_bggc_count(si) do { } while (0)
3897 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3898 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3899 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3900 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3901 #define stat_inc_total_hit(sbi) do { } while (0)
3902 #define stat_inc_rbtree_node_hit(sbi) do { } while (0)
3903 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3904 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3905 #define stat_inc_inline_xattr(inode) do { } while (0)
3906 #define stat_dec_inline_xattr(inode) do { } while (0)
3907 #define stat_inc_inline_inode(inode) do { } while (0)
3908 #define stat_dec_inline_inode(inode) do { } while (0)
3909 #define stat_inc_inline_dir(inode) do { } while (0)
3910 #define stat_dec_inline_dir(inode) do { } while (0)
3911 #define stat_inc_compr_inode(inode) do { } while (0)
3912 #define stat_dec_compr_inode(inode) do { } while (0)
3913 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
3914 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
3915 #define stat_update_max_atomic_write(inode) do { } while (0)
3916 #define stat_inc_volatile_write(inode) do { } while (0)
3917 #define stat_dec_volatile_write(inode) do { } while (0)
3918 #define stat_update_max_volatile_write(inode) do { } while (0)
3919 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3920 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3921 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3922 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3923 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3924 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3925 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3926 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3928 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3929 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3930 static inline void __init f2fs_create_root_stats(void) { }
3931 static inline void f2fs_destroy_root_stats(void) { }
3932 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
3935 extern const struct file_operations f2fs_dir_operations;
3936 extern const struct file_operations f2fs_file_operations;
3937 extern const struct inode_operations f2fs_file_inode_operations;
3938 extern const struct address_space_operations f2fs_dblock_aops;
3939 extern const struct address_space_operations f2fs_node_aops;
3940 extern const struct address_space_operations f2fs_meta_aops;
3941 extern const struct inode_operations f2fs_dir_inode_operations;
3942 extern const struct inode_operations f2fs_symlink_inode_operations;
3943 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3944 extern const struct inode_operations f2fs_special_inode_operations;
3945 extern struct kmem_cache *f2fs_inode_entry_slab;
3950 bool f2fs_may_inline_data(struct inode *inode);
3951 bool f2fs_may_inline_dentry(struct inode *inode);
3952 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3953 void f2fs_truncate_inline_inode(struct inode *inode,
3954 struct page *ipage, u64 from);
3955 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3956 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3957 int f2fs_convert_inline_inode(struct inode *inode);
3958 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
3959 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3960 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3961 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3962 const struct f2fs_filename *fname,
3963 struct page **res_page);
3964 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3965 struct page *ipage);
3966 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
3967 struct inode *inode, nid_t ino, umode_t mode);
3968 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3969 struct page *page, struct inode *dir,
3970 struct inode *inode);
3971 bool f2fs_empty_inline_dir(struct inode *dir);
3972 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3973 struct fscrypt_str *fstr);
3974 int f2fs_inline_data_fiemap(struct inode *inode,
3975 struct fiemap_extent_info *fieinfo,
3976 __u64 start, __u64 len);
3981 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3982 struct shrink_control *sc);
3983 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3984 struct shrink_control *sc);
3985 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3986 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3991 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3992 struct rb_entry *cached_re, unsigned int ofs);
3993 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
3994 struct rb_root_cached *root,
3995 struct rb_node **parent,
3996 unsigned long long key, bool *left_most);
3997 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3998 struct rb_root_cached *root,
3999 struct rb_node **parent,
4000 unsigned int ofs, bool *leftmost);
4001 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
4002 struct rb_entry *cached_re, unsigned int ofs,
4003 struct rb_entry **prev_entry, struct rb_entry **next_entry,
4004 struct rb_node ***insert_p, struct rb_node **insert_parent,
4005 bool force, bool *leftmost);
4006 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
4007 struct rb_root_cached *root, bool check_key);
4008 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
4009 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
4010 void f2fs_drop_extent_tree(struct inode *inode);
4011 unsigned int f2fs_destroy_extent_node(struct inode *inode);
4012 void f2fs_destroy_extent_tree(struct inode *inode);
4013 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
4014 struct extent_info *ei);
4015 void f2fs_update_extent_cache(struct dnode_of_data *dn);
4016 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
4017 pgoff_t fofs, block_t blkaddr, unsigned int len);
4018 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
4019 int __init f2fs_create_extent_cache(void);
4020 void f2fs_destroy_extent_cache(void);
4025 #define MIN_RA_MUL 2
4026 #define MAX_RA_MUL 256
4028 int __init f2fs_init_sysfs(void);
4029 void f2fs_exit_sysfs(void);
4030 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4031 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4034 extern const struct fsverity_operations f2fs_verityops;
4039 static inline bool f2fs_encrypted_file(struct inode *inode)
4041 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4044 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4046 #ifdef CONFIG_FS_ENCRYPTION
4047 file_set_encrypt(inode);
4048 f2fs_set_inode_flags(inode);
4053 * Returns true if the reads of the inode's data need to undergo some
4054 * postprocessing step, like decryption or authenticity verification.
4056 static inline bool f2fs_post_read_required(struct inode *inode)
4058 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4059 f2fs_compressed_file(inode);
4065 #ifdef CONFIG_F2FS_FS_COMPRESSION
4066 bool f2fs_is_compressed_page(struct page *page);
4067 struct page *f2fs_compress_control_page(struct page *page);
4068 int f2fs_prepare_compress_overwrite(struct inode *inode,
4069 struct page **pagep, pgoff_t index, void **fsdata);
4070 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4071 pgoff_t index, unsigned copied);
4072 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4073 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4074 bool f2fs_is_compress_backend_ready(struct inode *inode);
4075 int f2fs_init_compress_mempool(void);
4076 void f2fs_destroy_compress_mempool(void);
4077 void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
4078 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4080 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4081 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4082 bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
4083 int index, int nr_pages);
4084 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4085 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4086 int f2fs_write_multi_pages(struct compress_ctx *cc,
4088 struct writeback_control *wbc,
4089 enum iostat_type io_type);
4090 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4091 void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4092 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4093 unsigned int c_len);
4094 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4095 unsigned nr_pages, sector_t *last_block_in_bio,
4096 bool is_readahead, bool for_write);
4097 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4098 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
4099 void f2fs_put_page_dic(struct page *page);
4100 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4101 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4102 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4103 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4104 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4105 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4106 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4107 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4108 int __init f2fs_init_compress_cache(void);
4109 void f2fs_destroy_compress_cache(void);
4110 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4111 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4112 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4113 nid_t ino, block_t blkaddr);
4114 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4116 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4117 #define inc_compr_inode_stat(inode) \
4119 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4120 sbi->compr_new_inode++; \
4122 #define add_compr_block_stat(inode, blocks) \
4124 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4125 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4126 sbi->compr_written_block += blocks; \
4127 sbi->compr_saved_block += diff; \
4130 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4131 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4133 if (!f2fs_compressed_file(inode))
4135 /* not support compression */
4138 static inline struct page *f2fs_compress_control_page(struct page *page)
4141 return ERR_PTR(-EINVAL);
4143 static inline int f2fs_init_compress_mempool(void) { return 0; }
4144 static inline void f2fs_destroy_compress_mempool(void) { }
4145 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
4146 static inline void f2fs_end_read_compressed_page(struct page *page,
4147 bool failed, block_t blkaddr)
4151 static inline void f2fs_put_page_dic(struct page *page)
4155 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
4156 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
4157 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4158 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4159 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4160 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4161 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4162 static inline void f2fs_destroy_compress_cache(void) { }
4163 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4164 block_t blkaddr) { }
4165 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4166 struct page *page, nid_t ino, block_t blkaddr) { }
4167 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4168 struct page *page, block_t blkaddr) { return false; }
4169 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4171 #define inc_compr_inode_stat(inode) do { } while (0)
4172 static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4173 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4174 unsigned int c_len) { }
4177 static inline void set_compress_context(struct inode *inode)
4179 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4181 F2FS_I(inode)->i_compress_algorithm =
4182 F2FS_OPTION(sbi).compress_algorithm;
4183 F2FS_I(inode)->i_log_cluster_size =
4184 F2FS_OPTION(sbi).compress_log_size;
4185 F2FS_I(inode)->i_compress_flag =
4186 F2FS_OPTION(sbi).compress_chksum ?
4187 1 << COMPRESS_CHKSUM : 0;
4188 F2FS_I(inode)->i_cluster_size =
4189 1 << F2FS_I(inode)->i_log_cluster_size;
4190 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4191 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4192 F2FS_OPTION(sbi).compress_level)
4193 F2FS_I(inode)->i_compress_flag |=
4194 F2FS_OPTION(sbi).compress_level <<
4195 COMPRESS_LEVEL_OFFSET;
4196 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4197 set_inode_flag(inode, FI_COMPRESSED_FILE);
4198 stat_inc_compr_inode(inode);
4199 inc_compr_inode_stat(inode);
4200 f2fs_mark_inode_dirty_sync(inode, true);
4203 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4205 struct f2fs_inode_info *fi = F2FS_I(inode);
4207 if (!f2fs_compressed_file(inode))
4209 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
4212 fi->i_flags &= ~F2FS_COMPR_FL;
4213 stat_dec_compr_inode(inode);
4214 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4215 f2fs_mark_inode_dirty_sync(inode, true);
4219 #define F2FS_FEATURE_FUNCS(name, flagname) \
4220 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4222 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4225 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4226 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4227 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4228 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4229 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4230 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4231 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4232 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4233 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4234 F2FS_FEATURE_FUNCS(verity, VERITY);
4235 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4236 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4237 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4238 F2FS_FEATURE_FUNCS(readonly, RO);
4240 static inline bool f2fs_may_extent_tree(struct inode *inode)
4242 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4244 if (!test_opt(sbi, EXTENT_CACHE) ||
4245 is_inode_flag_set(inode, FI_NO_EXTENT) ||
4246 (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
4247 !f2fs_sb_has_readonly(sbi)))
4251 * for recovered files during mount do not create extents
4252 * if shrinker is not registered.
4254 if (list_empty(&sbi->s_list))
4257 return S_ISREG(inode->i_mode);
4260 #ifdef CONFIG_BLK_DEV_ZONED
4261 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4264 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4266 return test_bit(zno, FDEV(devi).blkz_seq);
4270 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4272 return f2fs_sb_has_blkzoned(sbi);
4275 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4277 return blk_queue_discard(bdev_get_queue(bdev)) ||
4278 bdev_is_zoned(bdev);
4281 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4285 if (!f2fs_is_multi_device(sbi))
4286 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4288 for (i = 0; i < sbi->s_ndevs; i++)
4289 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4294 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4296 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4297 f2fs_hw_should_discard(sbi);
4300 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4304 if (!f2fs_is_multi_device(sbi))
4305 return bdev_read_only(sbi->sb->s_bdev);
4307 for (i = 0; i < sbi->s_ndevs; i++)
4308 if (bdev_read_only(FDEV(i).bdev))
4313 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4315 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4318 static inline bool f2fs_may_compress(struct inode *inode)
4320 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4321 f2fs_is_atomic_file(inode) ||
4322 f2fs_is_volatile_file(inode))
4324 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4327 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4328 u64 blocks, bool add)
4330 int diff = F2FS_I(inode)->i_cluster_size - blocks;
4331 struct f2fs_inode_info *fi = F2FS_I(inode);
4333 /* don't update i_compr_blocks if saved blocks were released */
4334 if (!add && !atomic_read(&fi->i_compr_blocks))
4338 atomic_add(diff, &fi->i_compr_blocks);
4339 stat_add_compr_blocks(inode, diff);
4341 atomic_sub(diff, &fi->i_compr_blocks);
4342 stat_sub_compr_blocks(inode, diff);
4344 f2fs_mark_inode_dirty_sync(inode, true);
4347 static inline int block_unaligned_IO(struct inode *inode,
4348 struct kiocb *iocb, struct iov_iter *iter)
4350 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4351 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4352 loff_t offset = iocb->ki_pos;
4353 unsigned long align = offset | iov_iter_alignment(iter);
4355 return align & blocksize_mask;
4358 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4361 if (!f2fs_is_multi_device(sbi))
4363 if (flag != F2FS_GET_BLOCK_DIO)
4365 return sbi->aligned_blksize;
4368 static inline bool f2fs_force_buffered_io(struct inode *inode,
4369 struct kiocb *iocb, struct iov_iter *iter)
4371 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4372 int rw = iov_iter_rw(iter);
4374 if (f2fs_post_read_required(inode))
4377 /* disallow direct IO if any of devices has unaligned blksize */
4378 if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
4381 * for blkzoned device, fallback direct IO to buffered IO, so
4382 * all IOs can be serialized by log-structured write.
4384 if (f2fs_sb_has_blkzoned(sbi))
4386 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4387 if (block_unaligned_IO(inode, iocb, iter))
4389 if (F2FS_IO_ALIGNED(sbi))
4392 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
4398 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4400 return fsverity_active(inode) &&
4401 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4404 #ifdef CONFIG_F2FS_FAULT_INJECTION
4405 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4408 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4411 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4414 if (f2fs_sb_has_quota_ino(sbi))
4416 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4417 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4418 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4424 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4426 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4429 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4430 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4432 #endif /* _LINUX_F2FS_H */