1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/vmalloc.h>
22 #include <linux/bio.h>
23 #include <linux/blkdev.h>
24 #include <linux/quotaops.h>
25 #include <linux/part_stat.h>
26 #include <crypto/hash.h>
28 #include <linux/fscrypt.h>
29 #include <linux/fsverity.h>
31 #ifdef CONFIG_F2FS_CHECK_FS
32 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
34 #define f2fs_bug_on(sbi, condition) \
36 if (unlikely(condition)) { \
38 set_sbi_flag(sbi, SBI_NEED_FSCK); \
62 #ifdef CONFIG_F2FS_FAULT_INJECTION
63 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
65 struct f2fs_fault_info {
67 unsigned int inject_rate;
68 unsigned int inject_type;
71 extern const char *f2fs_fault_name[FAULT_MAX];
72 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
78 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
79 #define F2FS_MOUNT_DISCARD 0x00000004
80 #define F2FS_MOUNT_NOHEAP 0x00000008
81 #define F2FS_MOUNT_XATTR_USER 0x00000010
82 #define F2FS_MOUNT_POSIX_ACL 0x00000020
83 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
84 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
85 #define F2FS_MOUNT_INLINE_DATA 0x00000100
86 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
87 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
88 #define F2FS_MOUNT_NOBARRIER 0x00000800
89 #define F2FS_MOUNT_FASTBOOT 0x00001000
90 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
91 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
92 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
93 #define F2FS_MOUNT_USRQUOTA 0x00080000
94 #define F2FS_MOUNT_GRPQUOTA 0x00100000
95 #define F2FS_MOUNT_PRJQUOTA 0x00200000
96 #define F2FS_MOUNT_QUOTA 0x00400000
97 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
98 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
99 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
100 #define F2FS_MOUNT_NORECOVERY 0x04000000
101 #define F2FS_MOUNT_ATGC 0x08000000
103 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
104 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
105 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
106 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
108 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
109 typecheck(unsigned long long, b) && \
110 ((long long)((a) - (b)) > 0))
112 typedef u32 block_t; /*
113 * should not change u32, since it is the on-disk block
114 * address format, __le32.
118 #define COMPRESS_EXT_NUM 16
120 struct f2fs_mount_info {
122 int write_io_size_bits; /* Write IO size bits */
123 block_t root_reserved_blocks; /* root reserved blocks */
124 kuid_t s_resuid; /* reserved blocks for uid */
125 kgid_t s_resgid; /* reserved blocks for gid */
126 int active_logs; /* # of active logs */
127 int inline_xattr_size; /* inline xattr size */
128 #ifdef CONFIG_F2FS_FAULT_INJECTION
129 struct f2fs_fault_info fault_info; /* For fault injection */
132 /* Names of quota files with journalled quota */
133 char *s_qf_names[MAXQUOTAS];
134 int s_jquota_fmt; /* Format of quota to use */
136 /* For which write hints are passed down to block layer */
138 int alloc_mode; /* segment allocation policy */
139 int fsync_mode; /* fsync policy */
140 int fs_mode; /* fs mode: LFS or ADAPTIVE */
141 int bggc_mode; /* bggc mode: off, on or sync */
142 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
143 block_t unusable_cap_perc; /* percentage for cap */
144 block_t unusable_cap; /* Amount of space allowed to be
145 * unusable when disabling checkpoint
148 /* For compression */
149 unsigned char compress_algorithm; /* algorithm type */
150 unsigned char compress_log_size; /* cluster log size */
151 bool compress_chksum; /* compressed data chksum */
152 unsigned char compress_ext_cnt; /* extension count */
153 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
156 #define F2FS_FEATURE_ENCRYPT 0x0001
157 #define F2FS_FEATURE_BLKZONED 0x0002
158 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
159 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
160 #define F2FS_FEATURE_PRJQUOTA 0x0010
161 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
162 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
163 #define F2FS_FEATURE_QUOTA_INO 0x0080
164 #define F2FS_FEATURE_INODE_CRTIME 0x0100
165 #define F2FS_FEATURE_LOST_FOUND 0x0200
166 #define F2FS_FEATURE_VERITY 0x0400
167 #define F2FS_FEATURE_SB_CHKSUM 0x0800
168 #define F2FS_FEATURE_CASEFOLD 0x1000
169 #define F2FS_FEATURE_COMPRESSION 0x2000
171 #define __F2FS_HAS_FEATURE(raw_super, mask) \
172 ((raw_super->feature & cpu_to_le32(mask)) != 0)
173 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
174 #define F2FS_SET_FEATURE(sbi, mask) \
175 (sbi->raw_super->feature |= cpu_to_le32(mask))
176 #define F2FS_CLEAR_FEATURE(sbi, mask) \
177 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
180 * Default values for user and/or group using reserved blocks
182 #define F2FS_DEF_RESUID 0
183 #define F2FS_DEF_RESGID 0
186 * For checkpoint manager
193 #define CP_UMOUNT 0x00000001
194 #define CP_FASTBOOT 0x00000002
195 #define CP_SYNC 0x00000004
196 #define CP_RECOVERY 0x00000008
197 #define CP_DISCARD 0x00000010
198 #define CP_TRIMMED 0x00000020
199 #define CP_PAUSE 0x00000040
200 #define CP_RESIZE 0x00000080
202 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
203 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
204 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
205 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
206 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
207 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
208 #define DEF_CP_INTERVAL 60 /* 60 secs */
209 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
210 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
211 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
212 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
222 * indicate meta/data type
231 DATA_GENERIC, /* check range only */
232 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
233 DATA_GENERIC_ENHANCE_READ, /*
234 * strong check on range and segment
235 * bitmap but no warning due to race
236 * condition of read on truncated area
242 /* for the list of ino */
244 ORPHAN_INO, /* for orphan ino list */
245 APPEND_INO, /* for append ino list */
246 UPDATE_INO, /* for update ino list */
247 TRANS_DIR_INO, /* for trasactions dir ino list */
248 FLUSH_INO, /* for multiple device flushing */
249 MAX_INO_ENTRY, /* max. list */
253 struct list_head list; /* list head */
254 nid_t ino; /* inode number */
255 unsigned int dirty_device; /* dirty device bitmap */
258 /* for the list of inodes to be GCed */
260 struct list_head list; /* list head */
261 struct inode *inode; /* vfs inode pointer */
264 struct fsync_node_entry {
265 struct list_head list; /* list head */
266 struct page *page; /* warm node page pointer */
267 unsigned int seq_id; /* sequence id */
270 /* for the bitmap indicate blocks to be discarded */
271 struct discard_entry {
272 struct list_head list; /* list head */
273 block_t start_blkaddr; /* start blockaddr of current segment */
274 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
277 /* default discard granularity of inner discard thread, unit: block count */
278 #define DEFAULT_DISCARD_GRANULARITY 16
280 /* max discard pend list number */
281 #define MAX_PLIST_NUM 512
282 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
283 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
286 D_PREP, /* initial */
287 D_PARTIAL, /* partially submitted */
288 D_SUBMIT, /* all submitted */
289 D_DONE, /* finished */
292 struct discard_info {
293 block_t lstart; /* logical start address */
294 block_t len; /* length */
295 block_t start; /* actual start address in dev */
299 struct rb_node rb_node; /* rb node located in rb-tree */
302 block_t lstart; /* logical start address */
303 block_t len; /* length */
304 block_t start; /* actual start address in dev */
306 struct discard_info di; /* discard info */
309 struct list_head list; /* command list */
310 struct completion wait; /* compleation */
311 struct block_device *bdev; /* bdev */
312 unsigned short ref; /* reference count */
313 unsigned char state; /* state */
314 unsigned char queued; /* queued discard */
315 int error; /* bio error */
316 spinlock_t lock; /* for state/bio_ref updating */
317 unsigned short bio_ref; /* bio reference count */
328 struct discard_policy {
329 int type; /* type of discard */
330 unsigned int min_interval; /* used for candidates exist */
331 unsigned int mid_interval; /* used for device busy */
332 unsigned int max_interval; /* used for candidates not exist */
333 unsigned int max_requests; /* # of discards issued per round */
334 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
335 bool io_aware; /* issue discard in idle time */
336 bool sync; /* submit discard with REQ_SYNC flag */
337 bool ordered; /* issue discard by lba order */
338 bool timeout; /* discard timeout for put_super */
339 unsigned int granularity; /* discard granularity */
342 struct discard_cmd_control {
343 struct task_struct *f2fs_issue_discard; /* discard thread */
344 struct list_head entry_list; /* 4KB discard entry list */
345 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
346 struct list_head wait_list; /* store on-flushing entries */
347 struct list_head fstrim_list; /* in-flight discard from fstrim */
348 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
349 unsigned int discard_wake; /* to wake up discard thread */
350 struct mutex cmd_lock;
351 unsigned int nr_discards; /* # of discards in the list */
352 unsigned int max_discards; /* max. discards to be issued */
353 unsigned int discard_granularity; /* discard granularity */
354 unsigned int undiscard_blks; /* # of undiscard blocks */
355 unsigned int next_pos; /* next discard position */
356 atomic_t issued_discard; /* # of issued discard */
357 atomic_t queued_discard; /* # of queued discard */
358 atomic_t discard_cmd_cnt; /* # of cached cmd count */
359 struct rb_root_cached root; /* root of discard rb-tree */
360 bool rbtree_check; /* config for consistence check */
363 /* for the list of fsync inodes, used only during recovery */
364 struct fsync_inode_entry {
365 struct list_head list; /* list head */
366 struct inode *inode; /* vfs inode pointer */
367 block_t blkaddr; /* block address locating the last fsync */
368 block_t last_dentry; /* block address locating the last dentry */
371 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
372 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
374 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
375 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
376 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
377 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
379 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
380 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
382 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
384 int before = nats_in_cursum(journal);
386 journal->n_nats = cpu_to_le16(before + i);
390 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
392 int before = sits_in_cursum(journal);
394 journal->n_sits = cpu_to_le16(before + i);
398 static inline bool __has_cursum_space(struct f2fs_journal *journal,
401 if (type == NAT_JOURNAL)
402 return size <= MAX_NAT_JENTRIES(journal);
403 return size <= MAX_SIT_JENTRIES(journal);
406 /* for inline stuff */
407 #define DEF_INLINE_RESERVED_SIZE 1
408 static inline int get_extra_isize(struct inode *inode);
409 static inline int get_inline_xattr_addrs(struct inode *inode);
410 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
411 (CUR_ADDRS_PER_INODE(inode) - \
412 get_inline_xattr_addrs(inode) - \
413 DEF_INLINE_RESERVED_SIZE))
416 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
417 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
419 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
420 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
421 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
422 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
423 NR_INLINE_DENTRY(inode) + \
424 INLINE_DENTRY_BITMAP_SIZE(inode)))
427 * For INODE and NODE manager
429 /* for directory operations */
431 struct f2fs_filename {
433 * The filename the user specified. This is NULL for some
434 * filesystem-internal operations, e.g. converting an inline directory
435 * to a non-inline one, or roll-forward recovering an encrypted dentry.
437 const struct qstr *usr_fname;
440 * The on-disk filename. For encrypted directories, this is encrypted.
441 * This may be NULL for lookups in an encrypted dir without the key.
443 struct fscrypt_str disk_name;
445 /* The dirhash of this filename */
448 #ifdef CONFIG_FS_ENCRYPTION
450 * For lookups in encrypted directories: either the buffer backing
451 * disk_name, or a buffer that holds the decoded no-key name.
453 struct fscrypt_str crypto_buf;
455 #ifdef CONFIG_UNICODE
457 * For casefolded directories: the casefolded name, but it's left NULL
458 * if the original name is not valid Unicode, if the directory is both
459 * casefolded and encrypted and its encryption key is unavailable, or if
460 * the filesystem is doing an internal operation where usr_fname is also
461 * NULL. In all these cases we fall back to treating the name as an
462 * opaque byte sequence.
464 struct fscrypt_str cf_name;
468 struct f2fs_dentry_ptr {
471 struct f2fs_dir_entry *dentry;
472 __u8 (*filename)[F2FS_SLOT_LEN];
477 static inline void make_dentry_ptr_block(struct inode *inode,
478 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
481 d->max = NR_DENTRY_IN_BLOCK;
482 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
483 d->bitmap = t->dentry_bitmap;
484 d->dentry = t->dentry;
485 d->filename = t->filename;
488 static inline void make_dentry_ptr_inline(struct inode *inode,
489 struct f2fs_dentry_ptr *d, void *t)
491 int entry_cnt = NR_INLINE_DENTRY(inode);
492 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
493 int reserved_size = INLINE_RESERVED_SIZE(inode);
497 d->nr_bitmap = bitmap_size;
499 d->dentry = t + bitmap_size + reserved_size;
500 d->filename = t + bitmap_size + reserved_size +
501 SIZE_OF_DIR_ENTRY * entry_cnt;
505 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
506 * as its node offset to distinguish from index node blocks.
507 * But some bits are used to mark the node block.
509 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
512 ALLOC_NODE, /* allocate a new node page if needed */
513 LOOKUP_NODE, /* look up a node without readahead */
515 * look up a node with readahead called
520 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
522 /* congestion wait timeout value, default: 20ms */
523 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
525 /* maximum retry quota flush count */
526 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
528 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
530 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
532 /* for in-memory extent cache entry */
533 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
535 /* number of extent info in extent cache we try to shrink */
536 #define EXTENT_CACHE_SHRINK_NUMBER 128
539 struct rb_node rb_node; /* rb node located in rb-tree */
542 unsigned int ofs; /* start offset of the entry */
543 unsigned int len; /* length of the entry */
545 unsigned long long key; /* 64-bits key */
550 unsigned int fofs; /* start offset in a file */
551 unsigned int len; /* length of the extent */
552 u32 blk; /* start block address of the extent */
556 struct rb_node rb_node; /* rb node located in rb-tree */
557 struct extent_info ei; /* extent info */
558 struct list_head list; /* node in global extent list of sbi */
559 struct extent_tree *et; /* extent tree pointer */
563 nid_t ino; /* inode number */
564 struct rb_root_cached root; /* root of extent info rb-tree */
565 struct extent_node *cached_en; /* recently accessed extent node */
566 struct extent_info largest; /* largested extent info */
567 struct list_head list; /* to be used by sbi->zombie_list */
568 rwlock_t lock; /* protect extent info rb-tree */
569 atomic_t node_cnt; /* # of extent node in rb-tree*/
570 bool largest_updated; /* largest extent updated */
574 * This structure is taken from ext4_map_blocks.
576 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
578 #define F2FS_MAP_NEW (1 << BH_New)
579 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
580 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
581 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
584 struct f2fs_map_blocks {
588 unsigned int m_flags;
589 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
590 pgoff_t *m_next_extent; /* point to next possible extent */
592 bool m_may_create; /* indicate it is from write path */
595 /* for flag in get_data_block */
597 F2FS_GET_BLOCK_DEFAULT,
598 F2FS_GET_BLOCK_FIEMAP,
601 F2FS_GET_BLOCK_PRE_DIO,
602 F2FS_GET_BLOCK_PRE_AIO,
603 F2FS_GET_BLOCK_PRECACHE,
607 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
609 #define FADVISE_COLD_BIT 0x01
610 #define FADVISE_LOST_PINO_BIT 0x02
611 #define FADVISE_ENCRYPT_BIT 0x04
612 #define FADVISE_ENC_NAME_BIT 0x08
613 #define FADVISE_KEEP_SIZE_BIT 0x10
614 #define FADVISE_HOT_BIT 0x20
615 #define FADVISE_VERITY_BIT 0x40
617 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
619 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
620 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
621 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
622 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
623 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
624 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
625 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
626 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
627 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
628 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
629 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
630 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
631 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
632 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
633 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
634 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
635 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
636 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
638 #define DEF_DIR_LEVEL 0
646 /* used for f2fs_inode_info->flags */
648 FI_NEW_INODE, /* indicate newly allocated inode */
649 FI_DIRTY_INODE, /* indicate inode is dirty or not */
650 FI_AUTO_RECOVER, /* indicate inode is recoverable */
651 FI_DIRTY_DIR, /* indicate directory has dirty pages */
652 FI_INC_LINK, /* need to increment i_nlink */
653 FI_ACL_MODE, /* indicate acl mode */
654 FI_NO_ALLOC, /* should not allocate any blocks */
655 FI_FREE_NID, /* free allocated nide */
656 FI_NO_EXTENT, /* not to use the extent cache */
657 FI_INLINE_XATTR, /* used for inline xattr */
658 FI_INLINE_DATA, /* used for inline data*/
659 FI_INLINE_DENTRY, /* used for inline dentry */
660 FI_APPEND_WRITE, /* inode has appended data */
661 FI_UPDATE_WRITE, /* inode has in-place-update data */
662 FI_NEED_IPU, /* used for ipu per file */
663 FI_ATOMIC_FILE, /* indicate atomic file */
664 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
665 FI_VOLATILE_FILE, /* indicate volatile file */
666 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
667 FI_DROP_CACHE, /* drop dirty page cache */
668 FI_DATA_EXIST, /* indicate data exists */
669 FI_INLINE_DOTS, /* indicate inline dot dentries */
670 FI_DO_DEFRAG, /* indicate defragment is running */
671 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
672 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
673 FI_HOT_DATA, /* indicate file is hot */
674 FI_EXTRA_ATTR, /* indicate file has extra attribute */
675 FI_PROJ_INHERIT, /* indicate file inherits projectid */
676 FI_PIN_FILE, /* indicate file should not be gced */
677 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
678 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
679 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
680 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
681 FI_MMAP_FILE, /* indicate file was mmapped */
682 FI_MAX, /* max flag, never be used */
685 struct f2fs_inode_info {
686 struct inode vfs_inode; /* serve a vfs inode */
687 unsigned long i_flags; /* keep an inode flags for ioctl */
688 unsigned char i_advise; /* use to give file attribute hints */
689 unsigned char i_dir_level; /* use for dentry level for large dir */
690 unsigned int i_current_depth; /* only for directory depth */
691 /* for gc failure statistic */
692 unsigned int i_gc_failures[MAX_GC_FAILURE];
693 unsigned int i_pino; /* parent inode number */
694 umode_t i_acl_mode; /* keep file acl mode temporarily */
696 /* Use below internally in f2fs*/
697 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
698 struct rw_semaphore i_sem; /* protect fi info */
699 atomic_t dirty_pages; /* # of dirty pages */
700 f2fs_hash_t chash; /* hash value of given file name */
701 unsigned int clevel; /* maximum level of given file name */
702 struct task_struct *task; /* lookup and create consistency */
703 struct task_struct *cp_task; /* separate cp/wb IO stats*/
704 nid_t i_xattr_nid; /* node id that contains xattrs */
705 loff_t last_disk_size; /* lastly written file size */
706 spinlock_t i_size_lock; /* protect last_disk_size */
709 struct dquot *i_dquot[MAXQUOTAS];
711 /* quota space reservation, managed internally by quota code */
712 qsize_t i_reserved_quota;
714 struct list_head dirty_list; /* dirty list for dirs and files */
715 struct list_head gdirty_list; /* linked in global dirty list */
716 struct list_head inmem_ilist; /* list for inmem inodes */
717 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
718 struct task_struct *inmem_task; /* store inmemory task */
719 struct mutex inmem_lock; /* lock for inmemory pages */
720 pgoff_t ra_offset; /* ongoing readahead offset */
721 struct extent_tree *extent_tree; /* cached extent_tree entry */
723 /* avoid racing between foreground op and gc */
724 struct rw_semaphore i_gc_rwsem[2];
725 struct rw_semaphore i_mmap_sem;
726 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
728 int i_extra_isize; /* size of extra space located in i_addr */
729 kprojid_t i_projid; /* id for project quota */
730 int i_inline_xattr_size; /* inline xattr size */
731 struct timespec64 i_crtime; /* inode creation time */
732 struct timespec64 i_disk_time[4];/* inode disk times */
734 /* for file compress */
735 atomic_t i_compr_blocks; /* # of compressed blocks */
736 unsigned char i_compress_algorithm; /* algorithm type */
737 unsigned char i_log_cluster_size; /* log of cluster size */
738 unsigned short i_compress_flag; /* compress flag */
739 unsigned int i_cluster_size; /* cluster size */
742 static inline void get_extent_info(struct extent_info *ext,
743 struct f2fs_extent *i_ext)
745 ext->fofs = le32_to_cpu(i_ext->fofs);
746 ext->blk = le32_to_cpu(i_ext->blk);
747 ext->len = le32_to_cpu(i_ext->len);
750 static inline void set_raw_extent(struct extent_info *ext,
751 struct f2fs_extent *i_ext)
753 i_ext->fofs = cpu_to_le32(ext->fofs);
754 i_ext->blk = cpu_to_le32(ext->blk);
755 i_ext->len = cpu_to_le32(ext->len);
758 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
759 u32 blk, unsigned int len)
766 static inline bool __is_discard_mergeable(struct discard_info *back,
767 struct discard_info *front, unsigned int max_len)
769 return (back->lstart + back->len == front->lstart) &&
770 (back->len + front->len <= max_len);
773 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
774 struct discard_info *back, unsigned int max_len)
776 return __is_discard_mergeable(back, cur, max_len);
779 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
780 struct discard_info *front, unsigned int max_len)
782 return __is_discard_mergeable(cur, front, max_len);
785 static inline bool __is_extent_mergeable(struct extent_info *back,
786 struct extent_info *front)
788 return (back->fofs + back->len == front->fofs &&
789 back->blk + back->len == front->blk);
792 static inline bool __is_back_mergeable(struct extent_info *cur,
793 struct extent_info *back)
795 return __is_extent_mergeable(back, cur);
798 static inline bool __is_front_mergeable(struct extent_info *cur,
799 struct extent_info *front)
801 return __is_extent_mergeable(cur, front);
804 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
805 static inline void __try_update_largest_extent(struct extent_tree *et,
806 struct extent_node *en)
808 if (en->ei.len > et->largest.len) {
809 et->largest = en->ei;
810 et->largest_updated = true;
815 * For free nid management
818 FREE_NID, /* newly added to free nid list */
819 PREALLOC_NID, /* it is preallocated */
823 struct f2fs_nm_info {
824 block_t nat_blkaddr; /* base disk address of NAT */
825 nid_t max_nid; /* maximum possible node ids */
826 nid_t available_nids; /* # of available node ids */
827 nid_t next_scan_nid; /* the next nid to be scanned */
828 unsigned int ram_thresh; /* control the memory footprint */
829 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
830 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
832 /* NAT cache management */
833 struct radix_tree_root nat_root;/* root of the nat entry cache */
834 struct radix_tree_root nat_set_root;/* root of the nat set cache */
835 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
836 struct list_head nat_entries; /* cached nat entry list (clean) */
837 spinlock_t nat_list_lock; /* protect clean nat entry list */
838 unsigned int nat_cnt; /* the # of cached nat entries */
839 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
840 unsigned int nat_blocks; /* # of nat blocks */
842 /* free node ids management */
843 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
844 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
845 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
846 spinlock_t nid_list_lock; /* protect nid lists ops */
847 struct mutex build_lock; /* lock for build free nids */
848 unsigned char **free_nid_bitmap;
849 unsigned char *nat_block_bitmap;
850 unsigned short *free_nid_count; /* free nid count of NAT block */
853 char *nat_bitmap; /* NAT bitmap pointer */
855 unsigned int nat_bits_blocks; /* # of nat bits blocks */
856 unsigned char *nat_bits; /* NAT bits blocks */
857 unsigned char *full_nat_bits; /* full NAT pages */
858 unsigned char *empty_nat_bits; /* empty NAT pages */
859 #ifdef CONFIG_F2FS_CHECK_FS
860 char *nat_bitmap_mir; /* NAT bitmap mirror */
862 int bitmap_size; /* bitmap size */
866 * this structure is used as one of function parameters.
867 * all the information are dedicated to a given direct node block determined
868 * by the data offset in a file.
870 struct dnode_of_data {
871 struct inode *inode; /* vfs inode pointer */
872 struct page *inode_page; /* its inode page, NULL is possible */
873 struct page *node_page; /* cached direct node page */
874 nid_t nid; /* node id of the direct node block */
875 unsigned int ofs_in_node; /* data offset in the node page */
876 bool inode_page_locked; /* inode page is locked or not */
877 bool node_changed; /* is node block changed */
878 char cur_level; /* level of hole node page */
879 char max_level; /* level of current page located */
880 block_t data_blkaddr; /* block address of the node block */
883 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
884 struct page *ipage, struct page *npage, nid_t nid)
886 memset(dn, 0, sizeof(*dn));
888 dn->inode_page = ipage;
889 dn->node_page = npage;
896 * By default, there are 6 active log areas across the whole main area.
897 * When considering hot and cold data separation to reduce cleaning overhead,
898 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
900 * In the current design, you should not change the numbers intentionally.
901 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
902 * logs individually according to the underlying devices. (default: 6)
903 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
904 * data and 8 for node logs.
906 #define NR_CURSEG_DATA_TYPE (3)
907 #define NR_CURSEG_NODE_TYPE (3)
908 #define NR_CURSEG_INMEM_TYPE (2)
909 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
910 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
913 CURSEG_HOT_DATA = 0, /* directory entry blocks */
914 CURSEG_WARM_DATA, /* data blocks */
915 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
916 CURSEG_HOT_NODE, /* direct node blocks of directory files */
917 CURSEG_WARM_NODE, /* direct node blocks of normal files */
918 CURSEG_COLD_NODE, /* indirect node blocks */
919 NR_PERSISTENT_LOG, /* number of persistent log */
920 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
921 /* pinned file that needs consecutive block address */
922 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
923 NO_CHECK_TYPE, /* number of persistent & inmem log */
927 struct completion wait;
928 struct llist_node llnode;
933 struct flush_cmd_control {
934 struct task_struct *f2fs_issue_flush; /* flush thread */
935 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
936 atomic_t issued_flush; /* # of issued flushes */
937 atomic_t queued_flush; /* # of queued flushes */
938 struct llist_head issue_list; /* list for command issue */
939 struct llist_node *dispatch_list; /* list for command dispatch */
942 struct f2fs_sm_info {
943 struct sit_info *sit_info; /* whole segment information */
944 struct free_segmap_info *free_info; /* free segment information */
945 struct dirty_seglist_info *dirty_info; /* dirty segment information */
946 struct curseg_info *curseg_array; /* active segment information */
948 struct rw_semaphore curseg_lock; /* for preventing curseg change */
950 block_t seg0_blkaddr; /* block address of 0'th segment */
951 block_t main_blkaddr; /* start block address of main area */
952 block_t ssa_blkaddr; /* start block address of SSA area */
954 unsigned int segment_count; /* total # of segments */
955 unsigned int main_segments; /* # of segments in main area */
956 unsigned int reserved_segments; /* # of reserved segments */
957 unsigned int ovp_segments; /* # of overprovision segments */
959 /* a threshold to reclaim prefree segments */
960 unsigned int rec_prefree_segments;
962 /* for batched trimming */
963 unsigned int trim_sections; /* # of sections to trim */
965 struct list_head sit_entry_set; /* sit entry set list */
967 unsigned int ipu_policy; /* in-place-update policy */
968 unsigned int min_ipu_util; /* in-place-update threshold */
969 unsigned int min_fsync_blocks; /* threshold for fsync */
970 unsigned int min_seq_blocks; /* threshold for sequential blocks */
971 unsigned int min_hot_blocks; /* threshold for hot block allocation */
972 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
974 /* for flush command control */
975 struct flush_cmd_control *fcc_info;
977 /* for discard command control */
978 struct discard_cmd_control *dcc_info;
985 * COUNT_TYPE for monitoring
987 * f2fs monitors the number of several block types such as on-writeback,
988 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
990 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1010 * The below are the page types of bios used in submit_bio().
1011 * The available types are:
1012 * DATA User data pages. It operates as async mode.
1013 * NODE Node pages. It operates as async mode.
1014 * META FS metadata pages such as SIT, NAT, CP.
1015 * NR_PAGE_TYPE The number of page types.
1016 * META_FLUSH Make sure the previous pages are written
1017 * with waiting the bio's completion
1018 * ... Only can be used with META.
1020 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1027 INMEM, /* the below types are used by tracepoints only. */
1036 HOT = 0, /* must be zero for meta bio */
1042 enum need_lock_type {
1048 enum cp_reason_type {
1064 APP_DIRECT_IO, /* app direct write IOs */
1065 APP_BUFFERED_IO, /* app buffered write IOs */
1066 APP_WRITE_IO, /* app write IOs */
1067 APP_MAPPED_IO, /* app mapped IOs */
1068 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1069 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1070 FS_META_IO, /* meta IOs from kworker/reclaimer */
1071 FS_GC_DATA_IO, /* data IOs from forground gc */
1072 FS_GC_NODE_IO, /* node IOs from forground gc */
1073 FS_CP_DATA_IO, /* data IOs from checkpoint */
1074 FS_CP_NODE_IO, /* node IOs from checkpoint */
1075 FS_CP_META_IO, /* meta IOs from checkpoint */
1078 APP_DIRECT_READ_IO, /* app direct read IOs */
1079 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1080 APP_READ_IO, /* app read IOs */
1081 APP_MAPPED_READ_IO, /* app mapped read IOs */
1082 FS_DATA_READ_IO, /* data read IOs */
1083 FS_GDATA_READ_IO, /* data read IOs from background gc */
1084 FS_CDATA_READ_IO, /* compressed data read IOs */
1085 FS_NODE_READ_IO, /* node read IOs */
1086 FS_META_READ_IO, /* meta read IOs */
1089 FS_DISCARD, /* discard */
1093 struct f2fs_io_info {
1094 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1095 nid_t ino; /* inode number */
1096 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1097 enum temp_type temp; /* contains HOT/WARM/COLD */
1098 int op; /* contains REQ_OP_ */
1099 int op_flags; /* req_flag_bits */
1100 block_t new_blkaddr; /* new block address to be written */
1101 block_t old_blkaddr; /* old block address before Cow */
1102 struct page *page; /* page to be written */
1103 struct page *encrypted_page; /* encrypted page */
1104 struct page *compressed_page; /* compressed page */
1105 struct list_head list; /* serialize IOs */
1106 bool submitted; /* indicate IO submission */
1107 int need_lock; /* indicate we need to lock cp_rwsem */
1108 bool in_list; /* indicate fio is in io_list */
1109 bool is_por; /* indicate IO is from recovery or not */
1110 bool retry; /* need to reallocate block address */
1111 int compr_blocks; /* # of compressed block addresses */
1112 bool encrypted; /* indicate file is encrypted */
1113 enum iostat_type io_type; /* io type */
1114 struct writeback_control *io_wbc; /* writeback control */
1115 struct bio **bio; /* bio for ipu */
1116 sector_t *last_block; /* last block number in bio */
1117 unsigned char version; /* version of the node */
1122 struct list_head list;
1125 #define is_read_io(rw) ((rw) == READ)
1126 struct f2fs_bio_info {
1127 struct f2fs_sb_info *sbi; /* f2fs superblock */
1128 struct bio *bio; /* bios to merge */
1129 sector_t last_block_in_bio; /* last block number */
1130 struct f2fs_io_info fio; /* store buffered io info. */
1131 struct rw_semaphore io_rwsem; /* blocking op for bio */
1132 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1133 struct list_head io_list; /* track fios */
1134 struct list_head bio_list; /* bio entry list head */
1135 struct rw_semaphore bio_list_lock; /* lock to protect bio entry list */
1138 #define FDEV(i) (sbi->devs[i])
1139 #define RDEV(i) (raw_super->devs[i])
1140 struct f2fs_dev_info {
1141 struct block_device *bdev;
1142 char path[MAX_PATH_LEN];
1143 unsigned int total_segments;
1146 #ifdef CONFIG_BLK_DEV_ZONED
1147 unsigned int nr_blkz; /* Total number of zones */
1148 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1149 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */
1154 DIR_INODE, /* for dirty dir inode */
1155 FILE_INODE, /* for dirty regular/symlink inode */
1156 DIRTY_META, /* for all dirtied inode metadata */
1157 ATOMIC_FILE, /* for all atomic files */
1161 /* for inner inode cache management */
1162 struct inode_management {
1163 struct radix_tree_root ino_root; /* ino entry array */
1164 spinlock_t ino_lock; /* for ino entry lock */
1165 struct list_head ino_list; /* inode list head */
1166 unsigned long ino_num; /* number of entries */
1170 struct atgc_management {
1171 bool atgc_enabled; /* ATGC is enabled or not */
1172 struct rb_root_cached root; /* root of victim rb-tree */
1173 struct list_head victim_list; /* linked with all victim entries */
1174 unsigned int victim_count; /* victim count in rb-tree */
1175 unsigned int candidate_ratio; /* candidate ratio */
1176 unsigned int max_candidate_count; /* max candidate count */
1177 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1178 unsigned long long age_threshold; /* age threshold */
1181 /* For s_flag in struct f2fs_sb_info */
1183 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1184 SBI_IS_CLOSE, /* specify unmounting */
1185 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1186 SBI_POR_DOING, /* recovery is doing or not */
1187 SBI_NEED_SB_WRITE, /* need to recover superblock */
1188 SBI_NEED_CP, /* need to checkpoint */
1189 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1190 SBI_IS_RECOVERED, /* recovered orphan/data */
1191 SBI_CP_DISABLED, /* CP was disabled last mount */
1192 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1193 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1194 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1195 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1196 SBI_IS_RESIZEFS, /* resizefs is in process */
1205 UMOUNT_DISCARD_TIMEOUT,
1219 BGGC_MODE_ON, /* background gc is on */
1220 BGGC_MODE_OFF, /* background gc is off */
1222 * background gc is on, migrating blocks
1223 * like foreground gc
1228 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1229 FS_MODE_LFS, /* use lfs allocation only */
1233 WHINT_MODE_OFF, /* not pass down write hints */
1234 WHINT_MODE_USER, /* try to pass down hints given by users */
1235 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1239 ALLOC_MODE_DEFAULT, /* stay default */
1240 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1244 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1245 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1246 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1250 * this value is set in page as a private data which indicate that
1251 * the page is atomically written, and it is in inmem_pages list.
1253 #define ATOMIC_WRITTEN_PAGE ((unsigned long)-1)
1254 #define DUMMY_WRITTEN_PAGE ((unsigned long)-2)
1256 #define IS_ATOMIC_WRITTEN_PAGE(page) \
1257 (page_private(page) == ATOMIC_WRITTEN_PAGE)
1258 #define IS_DUMMY_WRITTEN_PAGE(page) \
1259 (page_private(page) == DUMMY_WRITTEN_PAGE)
1261 #ifdef CONFIG_F2FS_IO_TRACE
1262 #define IS_IO_TRACED_PAGE(page) \
1263 (page_private(page) > 0 && \
1264 page_private(page) < (unsigned long)PID_MAX_LIMIT)
1266 #define IS_IO_TRACED_PAGE(page) (0)
1269 /* For compression */
1270 enum compress_algorithm_type {
1278 enum compress_flag {
1283 #define COMPRESS_DATA_RESERVED_SIZE 4
1284 struct compress_data {
1285 __le32 clen; /* compressed data size */
1286 __le32 chksum; /* compressed data chksum */
1287 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1288 u8 cdata[]; /* compressed data */
1291 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1293 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1295 /* compress context */
1296 struct compress_ctx {
1297 struct inode *inode; /* inode the context belong to */
1298 pgoff_t cluster_idx; /* cluster index number */
1299 unsigned int cluster_size; /* page count in cluster */
1300 unsigned int log_cluster_size; /* log of cluster size */
1301 struct page **rpages; /* pages store raw data in cluster */
1302 unsigned int nr_rpages; /* total page number in rpages */
1303 struct page **cpages; /* pages store compressed data in cluster */
1304 unsigned int nr_cpages; /* total page number in cpages */
1305 void *rbuf; /* virtual mapped address on rpages */
1306 struct compress_data *cbuf; /* virtual mapped address on cpages */
1307 size_t rlen; /* valid data length in rbuf */
1308 size_t clen; /* valid data length in cbuf */
1309 void *private; /* payload buffer for specified compression algorithm */
1310 void *private2; /* extra payload buffer */
1313 /* compress context for write IO path */
1314 struct compress_io_ctx {
1315 u32 magic; /* magic number to indicate page is compressed */
1316 struct inode *inode; /* inode the context belong to */
1317 struct page **rpages; /* pages store raw data in cluster */
1318 unsigned int nr_rpages; /* total page number in rpages */
1319 atomic_t pending_pages; /* in-flight compressed page count */
1322 /* decompress io context for read IO path */
1323 struct decompress_io_ctx {
1324 u32 magic; /* magic number to indicate page is compressed */
1325 struct inode *inode; /* inode the context belong to */
1326 pgoff_t cluster_idx; /* cluster index number */
1327 unsigned int cluster_size; /* page count in cluster */
1328 unsigned int log_cluster_size; /* log of cluster size */
1329 struct page **rpages; /* pages store raw data in cluster */
1330 unsigned int nr_rpages; /* total page number in rpages */
1331 struct page **cpages; /* pages store compressed data in cluster */
1332 unsigned int nr_cpages; /* total page number in cpages */
1333 struct page **tpages; /* temp pages to pad holes in cluster */
1334 void *rbuf; /* virtual mapped address on rpages */
1335 struct compress_data *cbuf; /* virtual mapped address on cpages */
1336 size_t rlen; /* valid data length in rbuf */
1337 size_t clen; /* valid data length in cbuf */
1338 atomic_t pending_pages; /* in-flight compressed page count */
1339 bool failed; /* indicate IO error during decompression */
1340 void *private; /* payload buffer for specified decompression algorithm */
1341 void *private2; /* extra payload buffer */
1344 #define NULL_CLUSTER ((unsigned int)(~0))
1345 #define MIN_COMPRESS_LOG_SIZE 2
1346 #define MAX_COMPRESS_LOG_SIZE 8
1347 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1349 struct f2fs_sb_info {
1350 struct super_block *sb; /* pointer to VFS super block */
1351 struct proc_dir_entry *s_proc; /* proc entry */
1352 struct f2fs_super_block *raw_super; /* raw super block pointer */
1353 struct rw_semaphore sb_lock; /* lock for raw super block */
1354 int valid_super_block; /* valid super block no */
1355 unsigned long s_flag; /* flags for sbi */
1356 struct mutex writepages; /* mutex for writepages() */
1358 #ifdef CONFIG_BLK_DEV_ZONED
1359 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1360 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1363 /* for node-related operations */
1364 struct f2fs_nm_info *nm_info; /* node manager */
1365 struct inode *node_inode; /* cache node blocks */
1367 /* for segment-related operations */
1368 struct f2fs_sm_info *sm_info; /* segment manager */
1370 /* for bio operations */
1371 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1372 /* keep migration IO order for LFS mode */
1373 struct rw_semaphore io_order_lock;
1374 mempool_t *write_io_dummy; /* Dummy pages */
1376 /* for checkpoint */
1377 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1378 int cur_cp_pack; /* remain current cp pack */
1379 spinlock_t cp_lock; /* for flag in ckpt */
1380 struct inode *meta_inode; /* cache meta blocks */
1381 struct rw_semaphore cp_global_sem; /* checkpoint procedure lock */
1382 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1383 struct rw_semaphore node_write; /* locking node writes */
1384 struct rw_semaphore node_change; /* locking node change */
1385 wait_queue_head_t cp_wait;
1386 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1387 long interval_time[MAX_TIME]; /* to store thresholds */
1389 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1391 spinlock_t fsync_node_lock; /* for node entry lock */
1392 struct list_head fsync_node_list; /* node list head */
1393 unsigned int fsync_seg_id; /* sequence id */
1394 unsigned int fsync_node_num; /* number of node entries */
1396 /* for orphan inode, use 0'th array */
1397 unsigned int max_orphans; /* max orphan inodes */
1399 /* for inode management */
1400 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1401 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1402 struct mutex flush_lock; /* for flush exclusion */
1404 /* for extent tree cache */
1405 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1406 struct mutex extent_tree_lock; /* locking extent radix tree */
1407 struct list_head extent_list; /* lru list for shrinker */
1408 spinlock_t extent_lock; /* locking extent lru list */
1409 atomic_t total_ext_tree; /* extent tree count */
1410 struct list_head zombie_list; /* extent zombie tree list */
1411 atomic_t total_zombie_tree; /* extent zombie tree count */
1412 atomic_t total_ext_node; /* extent info count */
1414 /* basic filesystem units */
1415 unsigned int log_sectors_per_block; /* log2 sectors per block */
1416 unsigned int log_blocksize; /* log2 block size */
1417 unsigned int blocksize; /* block size */
1418 unsigned int root_ino_num; /* root inode number*/
1419 unsigned int node_ino_num; /* node inode number*/
1420 unsigned int meta_ino_num; /* meta inode number*/
1421 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1422 unsigned int blocks_per_seg; /* blocks per segment */
1423 unsigned int segs_per_sec; /* segments per section */
1424 unsigned int secs_per_zone; /* sections per zone */
1425 unsigned int total_sections; /* total section count */
1426 unsigned int total_node_count; /* total node block count */
1427 unsigned int total_valid_node_count; /* valid node block count */
1428 loff_t max_file_blocks; /* max block index of file */
1429 int dir_level; /* directory level */
1430 int readdir_ra; /* readahead inode in readdir */
1432 block_t user_block_count; /* # of user blocks */
1433 block_t total_valid_block_count; /* # of valid blocks */
1434 block_t discard_blks; /* discard command candidats */
1435 block_t last_valid_block_count; /* for recovery */
1436 block_t reserved_blocks; /* configurable reserved blocks */
1437 block_t current_reserved_blocks; /* current reserved blocks */
1439 /* Additional tracking for no checkpoint mode */
1440 block_t unusable_block_count; /* # of blocks saved by last cp */
1442 unsigned int nquota_files; /* # of quota sysfile */
1443 struct rw_semaphore quota_sem; /* blocking cp for flags */
1445 /* # of pages, see count_type */
1446 atomic_t nr_pages[NR_COUNT_TYPE];
1447 /* # of allocated blocks */
1448 struct percpu_counter alloc_valid_block_count;
1450 /* writeback control */
1451 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1453 /* valid inode count */
1454 struct percpu_counter total_valid_inode_count;
1456 struct f2fs_mount_info mount_opt; /* mount options */
1458 /* for cleaning operations */
1459 struct rw_semaphore gc_lock; /*
1460 * semaphore for GC, avoid
1461 * race between GC and GC or CP
1463 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1464 struct atgc_management am; /* atgc management */
1465 unsigned int cur_victim_sec; /* current victim section num */
1466 unsigned int gc_mode; /* current GC state */
1467 unsigned int next_victim_seg[2]; /* next segment in victim section */
1469 /* for skip statistic */
1470 unsigned int atomic_files; /* # of opened atomic file */
1471 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1472 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1474 /* threshold for gc trials on pinned files */
1475 u64 gc_pin_file_threshold;
1476 struct rw_semaphore pin_sem;
1478 /* maximum # of trials to find a victim segment for SSR and GC */
1479 unsigned int max_victim_search;
1480 /* migration granularity of garbage collection, unit: segment */
1481 unsigned int migration_granularity;
1484 * for stat information.
1485 * one is for the LFS mode, and the other is for the SSR mode.
1487 #ifdef CONFIG_F2FS_STAT_FS
1488 struct f2fs_stat_info *stat_info; /* FS status information */
1489 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1490 unsigned int segment_count[2]; /* # of allocated segments */
1491 unsigned int block_count[2]; /* # of allocated blocks */
1492 atomic_t inplace_count; /* # of inplace update */
1493 atomic64_t total_hit_ext; /* # of lookup extent cache */
1494 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1495 atomic64_t read_hit_largest; /* # of hit largest extent node */
1496 atomic64_t read_hit_cached; /* # of hit cached extent node */
1497 atomic_t inline_xattr; /* # of inline_xattr inodes */
1498 atomic_t inline_inode; /* # of inline_data inodes */
1499 atomic_t inline_dir; /* # of inline_dentry inodes */
1500 atomic_t compr_inode; /* # of compressed inodes */
1501 atomic64_t compr_blocks; /* # of compressed blocks */
1502 atomic_t vw_cnt; /* # of volatile writes */
1503 atomic_t max_aw_cnt; /* max # of atomic writes */
1504 atomic_t max_vw_cnt; /* max # of volatile writes */
1505 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1506 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1507 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1509 spinlock_t stat_lock; /* lock for stat operations */
1511 /* For app/fs IO statistics */
1512 spinlock_t iostat_lock;
1513 unsigned long long rw_iostat[NR_IO_TYPE];
1514 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1516 unsigned long iostat_next_period;
1517 unsigned int iostat_period_ms;
1519 /* to attach REQ_META|REQ_FUA flags */
1520 unsigned int data_io_flag;
1521 unsigned int node_io_flag;
1523 /* For sysfs suppport */
1524 struct kobject s_kobj;
1525 struct completion s_kobj_unregister;
1527 /* For shrinker support */
1528 struct list_head s_list;
1529 int s_ndevs; /* number of devices */
1530 struct f2fs_dev_info *devs; /* for device list */
1531 unsigned int dirty_device; /* for checkpoint data flush */
1532 spinlock_t dev_lock; /* protect dirty_device */
1533 struct mutex umount_mutex;
1534 unsigned int shrinker_run_no;
1536 /* For write statistics */
1537 u64 sectors_written_start;
1540 /* Reference to checksum algorithm driver via cryptoapi */
1541 struct crypto_shash *s_chksum_driver;
1543 /* Precomputed FS UUID checksum for seeding other checksums */
1544 __u32 s_chksum_seed;
1546 struct workqueue_struct *post_read_wq; /* post read workqueue */
1548 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1549 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1551 #ifdef CONFIG_F2FS_FS_COMPRESSION
1552 struct kmem_cache *page_array_slab; /* page array entry */
1553 unsigned int page_array_slab_size; /* default page array slab size */
1557 struct f2fs_private_dio {
1558 struct inode *inode;
1560 bio_end_io_t *orig_end_io;
1564 #ifdef CONFIG_F2FS_FAULT_INJECTION
1565 #define f2fs_show_injection_info(sbi, type) \
1566 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1567 KERN_INFO, sbi->sb->s_id, \
1568 f2fs_fault_name[type], \
1569 __func__, __builtin_return_address(0))
1570 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1572 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1574 if (!ffi->inject_rate)
1577 if (!IS_FAULT_SET(ffi, type))
1580 atomic_inc(&ffi->inject_ops);
1581 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1582 atomic_set(&ffi->inject_ops, 0);
1588 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1589 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1596 * Test if the mounted volume is a multi-device volume.
1597 * - For a single regular disk volume, sbi->s_ndevs is 0.
1598 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1599 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1601 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1603 return sbi->s_ndevs > 1;
1606 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1608 unsigned long now = jiffies;
1610 sbi->last_time[type] = now;
1612 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1613 if (type == REQ_TIME) {
1614 sbi->last_time[DISCARD_TIME] = now;
1615 sbi->last_time[GC_TIME] = now;
1619 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1621 unsigned long interval = sbi->interval_time[type] * HZ;
1623 return time_after(jiffies, sbi->last_time[type] + interval);
1626 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1629 unsigned long interval = sbi->interval_time[type] * HZ;
1630 unsigned int wait_ms = 0;
1633 delta = (sbi->last_time[type] + interval) - jiffies;
1635 wait_ms = jiffies_to_msecs(delta);
1643 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1644 const void *address, unsigned int length)
1647 struct shash_desc shash;
1652 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1654 desc.shash.tfm = sbi->s_chksum_driver;
1655 *(u32 *)desc.ctx = crc;
1657 err = crypto_shash_update(&desc.shash, address, length);
1660 return *(u32 *)desc.ctx;
1663 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1664 unsigned int length)
1666 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1669 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1670 void *buf, size_t buf_size)
1672 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1675 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1676 const void *address, unsigned int length)
1678 return __f2fs_crc32(sbi, crc, address, length);
1681 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1683 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1686 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1688 return sb->s_fs_info;
1691 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1693 return F2FS_SB(inode->i_sb);
1696 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1698 return F2FS_I_SB(mapping->host);
1701 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1703 return F2FS_M_SB(page_file_mapping(page));
1706 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1708 return (struct f2fs_super_block *)(sbi->raw_super);
1711 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1713 return (struct f2fs_checkpoint *)(sbi->ckpt);
1716 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1718 return (struct f2fs_node *)page_address(page);
1721 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1723 return &((struct f2fs_node *)page_address(page))->i;
1726 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1728 return (struct f2fs_nm_info *)(sbi->nm_info);
1731 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1733 return (struct f2fs_sm_info *)(sbi->sm_info);
1736 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1738 return (struct sit_info *)(SM_I(sbi)->sit_info);
1741 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1743 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1746 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1748 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1751 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1753 return sbi->meta_inode->i_mapping;
1756 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1758 return sbi->node_inode->i_mapping;
1761 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1763 return test_bit(type, &sbi->s_flag);
1766 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1768 set_bit(type, &sbi->s_flag);
1771 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1773 clear_bit(type, &sbi->s_flag);
1776 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1778 return le64_to_cpu(cp->checkpoint_ver);
1781 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1783 if (type < F2FS_MAX_QUOTAS)
1784 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1788 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1790 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1791 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1794 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1796 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1798 return ckpt_flags & f;
1801 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1803 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1806 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1808 unsigned int ckpt_flags;
1810 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1812 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1815 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1817 unsigned long flags;
1819 spin_lock_irqsave(&sbi->cp_lock, flags);
1820 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1821 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1824 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1826 unsigned int ckpt_flags;
1828 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1830 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1833 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1835 unsigned long flags;
1837 spin_lock_irqsave(&sbi->cp_lock, flags);
1838 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1839 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1842 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1844 unsigned long flags;
1845 unsigned char *nat_bits;
1848 * In order to re-enable nat_bits we need to call fsck.f2fs by
1849 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
1850 * so let's rely on regular fsck or unclean shutdown.
1854 spin_lock_irqsave(&sbi->cp_lock, flags);
1855 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1856 nat_bits = NM_I(sbi)->nat_bits;
1857 NM_I(sbi)->nat_bits = NULL;
1859 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1864 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1865 struct cp_control *cpc)
1867 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1869 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1872 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1874 down_read(&sbi->cp_rwsem);
1877 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1879 return down_read_trylock(&sbi->cp_rwsem);
1882 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1884 up_read(&sbi->cp_rwsem);
1887 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1889 down_write(&sbi->cp_rwsem);
1892 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1894 up_write(&sbi->cp_rwsem);
1897 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1899 int reason = CP_SYNC;
1901 if (test_opt(sbi, FASTBOOT))
1902 reason = CP_FASTBOOT;
1903 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1908 static inline bool __remain_node_summaries(int reason)
1910 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1913 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1915 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1916 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1920 * Check whether the inode has blocks or not
1922 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1924 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1926 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1929 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1931 return ofs == XATTR_NODE_OFFSET;
1934 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1935 struct inode *inode, bool cap)
1939 if (!test_opt(sbi, RESERVE_ROOT))
1941 if (IS_NOQUOTA(inode))
1943 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1945 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1946 in_group_p(F2FS_OPTION(sbi).s_resgid))
1948 if (cap && capable(CAP_SYS_RESOURCE))
1953 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1954 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1955 struct inode *inode, blkcnt_t *count)
1957 blkcnt_t diff = 0, release = 0;
1958 block_t avail_user_block_count;
1961 ret = dquot_reserve_block(inode, *count);
1965 if (time_to_inject(sbi, FAULT_BLOCK)) {
1966 f2fs_show_injection_info(sbi, FAULT_BLOCK);
1972 * let's increase this in prior to actual block count change in order
1973 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1975 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1977 spin_lock(&sbi->stat_lock);
1978 sbi->total_valid_block_count += (block_t)(*count);
1979 avail_user_block_count = sbi->user_block_count -
1980 sbi->current_reserved_blocks;
1982 if (!__allow_reserved_blocks(sbi, inode, true))
1983 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1984 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
1985 if (avail_user_block_count > sbi->unusable_block_count)
1986 avail_user_block_count -= sbi->unusable_block_count;
1988 avail_user_block_count = 0;
1990 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1991 diff = sbi->total_valid_block_count - avail_user_block_count;
1996 sbi->total_valid_block_count -= diff;
1998 spin_unlock(&sbi->stat_lock);
2002 spin_unlock(&sbi->stat_lock);
2004 if (unlikely(release)) {
2005 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2006 dquot_release_reservation_block(inode, release);
2008 f2fs_i_blocks_write(inode, *count, true, true);
2012 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2014 dquot_release_reservation_block(inode, release);
2019 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2021 #define f2fs_err(sbi, fmt, ...) \
2022 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2023 #define f2fs_warn(sbi, fmt, ...) \
2024 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2025 #define f2fs_notice(sbi, fmt, ...) \
2026 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2027 #define f2fs_info(sbi, fmt, ...) \
2028 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2029 #define f2fs_debug(sbi, fmt, ...) \
2030 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2032 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2033 struct inode *inode,
2036 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2038 spin_lock(&sbi->stat_lock);
2039 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2040 sbi->total_valid_block_count -= (block_t)count;
2041 if (sbi->reserved_blocks &&
2042 sbi->current_reserved_blocks < sbi->reserved_blocks)
2043 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2044 sbi->current_reserved_blocks + count);
2045 spin_unlock(&sbi->stat_lock);
2046 if (unlikely(inode->i_blocks < sectors)) {
2047 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2049 (unsigned long long)inode->i_blocks,
2050 (unsigned long long)sectors);
2051 set_sbi_flag(sbi, SBI_NEED_FSCK);
2054 f2fs_i_blocks_write(inode, count, false, true);
2057 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2059 atomic_inc(&sbi->nr_pages[count_type]);
2061 if (count_type == F2FS_DIRTY_DENTS ||
2062 count_type == F2FS_DIRTY_NODES ||
2063 count_type == F2FS_DIRTY_META ||
2064 count_type == F2FS_DIRTY_QDATA ||
2065 count_type == F2FS_DIRTY_IMETA)
2066 set_sbi_flag(sbi, SBI_IS_DIRTY);
2069 static inline void inode_inc_dirty_pages(struct inode *inode)
2071 atomic_inc(&F2FS_I(inode)->dirty_pages);
2072 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2073 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2074 if (IS_NOQUOTA(inode))
2075 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2078 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2080 atomic_dec(&sbi->nr_pages[count_type]);
2083 static inline void inode_dec_dirty_pages(struct inode *inode)
2085 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2086 !S_ISLNK(inode->i_mode))
2089 atomic_dec(&F2FS_I(inode)->dirty_pages);
2090 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2091 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2092 if (IS_NOQUOTA(inode))
2093 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2096 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2098 return atomic_read(&sbi->nr_pages[count_type]);
2101 static inline int get_dirty_pages(struct inode *inode)
2103 return atomic_read(&F2FS_I(inode)->dirty_pages);
2106 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2108 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2109 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2110 sbi->log_blocks_per_seg;
2112 return segs / sbi->segs_per_sec;
2115 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2117 return sbi->total_valid_block_count;
2120 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2122 return sbi->discard_blks;
2125 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2127 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2129 /* return NAT or SIT bitmap */
2130 if (flag == NAT_BITMAP)
2131 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2132 else if (flag == SIT_BITMAP)
2133 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2138 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2140 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2143 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2145 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2148 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2149 offset = (flag == SIT_BITMAP) ?
2150 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2152 * if large_nat_bitmap feature is enabled, leave checksum
2153 * protection for all nat/sit bitmaps.
2155 return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32);
2158 if (__cp_payload(sbi) > 0) {
2159 if (flag == NAT_BITMAP)
2160 return &ckpt->sit_nat_version_bitmap;
2162 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2164 offset = (flag == NAT_BITMAP) ?
2165 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2166 return &ckpt->sit_nat_version_bitmap + offset;
2170 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2172 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2174 if (sbi->cur_cp_pack == 2)
2175 start_addr += sbi->blocks_per_seg;
2179 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2181 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2183 if (sbi->cur_cp_pack == 1)
2184 start_addr += sbi->blocks_per_seg;
2188 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2190 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2193 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2195 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2198 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2199 struct inode *inode, bool is_inode)
2201 block_t valid_block_count;
2202 unsigned int valid_node_count, user_block_count;
2207 err = dquot_alloc_inode(inode);
2212 err = dquot_reserve_block(inode, 1);
2217 if (time_to_inject(sbi, FAULT_BLOCK)) {
2218 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2222 spin_lock(&sbi->stat_lock);
2224 valid_block_count = sbi->total_valid_block_count +
2225 sbi->current_reserved_blocks + 1;
2227 if (!__allow_reserved_blocks(sbi, inode, false))
2228 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2229 user_block_count = sbi->user_block_count;
2230 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2231 user_block_count -= sbi->unusable_block_count;
2233 if (unlikely(valid_block_count > user_block_count)) {
2234 spin_unlock(&sbi->stat_lock);
2238 valid_node_count = sbi->total_valid_node_count + 1;
2239 if (unlikely(valid_node_count > sbi->total_node_count)) {
2240 spin_unlock(&sbi->stat_lock);
2244 sbi->total_valid_node_count++;
2245 sbi->total_valid_block_count++;
2246 spin_unlock(&sbi->stat_lock);
2250 f2fs_mark_inode_dirty_sync(inode, true);
2252 f2fs_i_blocks_write(inode, 1, true, true);
2255 percpu_counter_inc(&sbi->alloc_valid_block_count);
2261 dquot_free_inode(inode);
2263 dquot_release_reservation_block(inode, 1);
2268 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2269 struct inode *inode, bool is_inode)
2271 spin_lock(&sbi->stat_lock);
2273 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2274 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2276 sbi->total_valid_node_count--;
2277 sbi->total_valid_block_count--;
2278 if (sbi->reserved_blocks &&
2279 sbi->current_reserved_blocks < sbi->reserved_blocks)
2280 sbi->current_reserved_blocks++;
2282 spin_unlock(&sbi->stat_lock);
2285 dquot_free_inode(inode);
2287 if (unlikely(inode->i_blocks == 0)) {
2288 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2290 (unsigned long long)inode->i_blocks);
2291 set_sbi_flag(sbi, SBI_NEED_FSCK);
2294 f2fs_i_blocks_write(inode, 1, false, true);
2298 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2300 return sbi->total_valid_node_count;
2303 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2305 percpu_counter_inc(&sbi->total_valid_inode_count);
2308 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2310 percpu_counter_dec(&sbi->total_valid_inode_count);
2313 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2315 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2318 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2319 pgoff_t index, bool for_write)
2323 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2325 page = find_get_page_flags(mapping, index,
2326 FGP_LOCK | FGP_ACCESSED);
2328 page = find_lock_page(mapping, index);
2332 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2333 f2fs_show_injection_info(F2FS_M_SB(mapping),
2340 return grab_cache_page(mapping, index);
2341 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2344 static inline struct page *f2fs_pagecache_get_page(
2345 struct address_space *mapping, pgoff_t index,
2346 int fgp_flags, gfp_t gfp_mask)
2348 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2349 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2353 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2356 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2358 char *src_kaddr = kmap(src);
2359 char *dst_kaddr = kmap(dst);
2361 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2366 static inline void f2fs_put_page(struct page *page, int unlock)
2372 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2378 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2381 f2fs_put_page(dn->node_page, 1);
2382 if (dn->inode_page && dn->node_page != dn->inode_page)
2383 f2fs_put_page(dn->inode_page, 0);
2384 dn->node_page = NULL;
2385 dn->inode_page = NULL;
2388 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2391 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2394 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2399 entry = kmem_cache_alloc(cachep, flags);
2401 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2405 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2407 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2408 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2409 get_pages(sbi, F2FS_WB_CP_DATA) ||
2410 get_pages(sbi, F2FS_DIO_READ) ||
2411 get_pages(sbi, F2FS_DIO_WRITE))
2414 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2415 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2418 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2419 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2424 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2426 if (sbi->gc_mode == GC_URGENT_HIGH)
2429 if (is_inflight_io(sbi, type))
2432 if (sbi->gc_mode == GC_URGENT_LOW &&
2433 (type == DISCARD_TIME || type == GC_TIME))
2436 return f2fs_time_over(sbi, type);
2439 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2440 unsigned long index, void *item)
2442 while (radix_tree_insert(root, index, item))
2446 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2448 static inline bool IS_INODE(struct page *page)
2450 struct f2fs_node *p = F2FS_NODE(page);
2452 return RAW_IS_INODE(p);
2455 static inline int offset_in_addr(struct f2fs_inode *i)
2457 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2458 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2461 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2463 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2466 static inline int f2fs_has_extra_attr(struct inode *inode);
2467 static inline block_t data_blkaddr(struct inode *inode,
2468 struct page *node_page, unsigned int offset)
2470 struct f2fs_node *raw_node;
2473 bool is_inode = IS_INODE(node_page);
2475 raw_node = F2FS_NODE(node_page);
2479 /* from GC path only */
2480 base = offset_in_addr(&raw_node->i);
2481 else if (f2fs_has_extra_attr(inode))
2482 base = get_extra_isize(inode);
2485 addr_array = blkaddr_in_node(raw_node);
2486 return le32_to_cpu(addr_array[base + offset]);
2489 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2491 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2494 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2499 mask = 1 << (7 - (nr & 0x07));
2500 return mask & *addr;
2503 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2508 mask = 1 << (7 - (nr & 0x07));
2512 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2517 mask = 1 << (7 - (nr & 0x07));
2521 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2527 mask = 1 << (7 - (nr & 0x07));
2533 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2539 mask = 1 << (7 - (nr & 0x07));
2545 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2550 mask = 1 << (7 - (nr & 0x07));
2555 * On-disk inode flags (f2fs_inode::i_flags)
2557 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2558 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2559 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2560 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2561 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2562 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2563 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2564 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2565 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2566 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2567 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2569 /* Flags that should be inherited by new inodes from their parent. */
2570 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2571 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2572 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2574 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2575 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2578 /* Flags that are appropriate for non-directories/regular files. */
2579 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2581 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2585 else if (S_ISREG(mode))
2586 return flags & F2FS_REG_FLMASK;
2588 return flags & F2FS_OTHER_FLMASK;
2591 static inline void __mark_inode_dirty_flag(struct inode *inode,
2595 case FI_INLINE_XATTR:
2596 case FI_INLINE_DATA:
2597 case FI_INLINE_DENTRY:
2603 case FI_INLINE_DOTS:
2605 f2fs_mark_inode_dirty_sync(inode, true);
2609 static inline void set_inode_flag(struct inode *inode, int flag)
2611 set_bit(flag, F2FS_I(inode)->flags);
2612 __mark_inode_dirty_flag(inode, flag, true);
2615 static inline int is_inode_flag_set(struct inode *inode, int flag)
2617 return test_bit(flag, F2FS_I(inode)->flags);
2620 static inline void clear_inode_flag(struct inode *inode, int flag)
2622 clear_bit(flag, F2FS_I(inode)->flags);
2623 __mark_inode_dirty_flag(inode, flag, false);
2626 static inline bool f2fs_verity_in_progress(struct inode *inode)
2628 return IS_ENABLED(CONFIG_FS_VERITY) &&
2629 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2632 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2634 F2FS_I(inode)->i_acl_mode = mode;
2635 set_inode_flag(inode, FI_ACL_MODE);
2636 f2fs_mark_inode_dirty_sync(inode, false);
2639 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2645 f2fs_mark_inode_dirty_sync(inode, true);
2648 static inline void f2fs_i_blocks_write(struct inode *inode,
2649 block_t diff, bool add, bool claim)
2651 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2652 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2654 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2657 dquot_claim_block(inode, diff);
2659 dquot_alloc_block_nofail(inode, diff);
2661 dquot_free_block(inode, diff);
2664 f2fs_mark_inode_dirty_sync(inode, true);
2665 if (clean || recover)
2666 set_inode_flag(inode, FI_AUTO_RECOVER);
2669 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2671 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2672 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2674 if (i_size_read(inode) == i_size)
2677 i_size_write(inode, i_size);
2678 f2fs_mark_inode_dirty_sync(inode, true);
2679 if (clean || recover)
2680 set_inode_flag(inode, FI_AUTO_RECOVER);
2683 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2685 F2FS_I(inode)->i_current_depth = depth;
2686 f2fs_mark_inode_dirty_sync(inode, true);
2689 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2692 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2693 f2fs_mark_inode_dirty_sync(inode, true);
2696 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2698 F2FS_I(inode)->i_xattr_nid = xnid;
2699 f2fs_mark_inode_dirty_sync(inode, true);
2702 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2704 F2FS_I(inode)->i_pino = pino;
2705 f2fs_mark_inode_dirty_sync(inode, true);
2708 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2710 struct f2fs_inode_info *fi = F2FS_I(inode);
2712 if (ri->i_inline & F2FS_INLINE_XATTR)
2713 set_bit(FI_INLINE_XATTR, fi->flags);
2714 if (ri->i_inline & F2FS_INLINE_DATA)
2715 set_bit(FI_INLINE_DATA, fi->flags);
2716 if (ri->i_inline & F2FS_INLINE_DENTRY)
2717 set_bit(FI_INLINE_DENTRY, fi->flags);
2718 if (ri->i_inline & F2FS_DATA_EXIST)
2719 set_bit(FI_DATA_EXIST, fi->flags);
2720 if (ri->i_inline & F2FS_INLINE_DOTS)
2721 set_bit(FI_INLINE_DOTS, fi->flags);
2722 if (ri->i_inline & F2FS_EXTRA_ATTR)
2723 set_bit(FI_EXTRA_ATTR, fi->flags);
2724 if (ri->i_inline & F2FS_PIN_FILE)
2725 set_bit(FI_PIN_FILE, fi->flags);
2728 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2732 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2733 ri->i_inline |= F2FS_INLINE_XATTR;
2734 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2735 ri->i_inline |= F2FS_INLINE_DATA;
2736 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2737 ri->i_inline |= F2FS_INLINE_DENTRY;
2738 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2739 ri->i_inline |= F2FS_DATA_EXIST;
2740 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2741 ri->i_inline |= F2FS_INLINE_DOTS;
2742 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2743 ri->i_inline |= F2FS_EXTRA_ATTR;
2744 if (is_inode_flag_set(inode, FI_PIN_FILE))
2745 ri->i_inline |= F2FS_PIN_FILE;
2748 static inline int f2fs_has_extra_attr(struct inode *inode)
2750 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2753 static inline int f2fs_has_inline_xattr(struct inode *inode)
2755 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2758 static inline int f2fs_compressed_file(struct inode *inode)
2760 return S_ISREG(inode->i_mode) &&
2761 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
2764 static inline unsigned int addrs_per_inode(struct inode *inode)
2766 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
2767 get_inline_xattr_addrs(inode);
2769 if (!f2fs_compressed_file(inode))
2771 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
2774 static inline unsigned int addrs_per_block(struct inode *inode)
2776 if (!f2fs_compressed_file(inode))
2777 return DEF_ADDRS_PER_BLOCK;
2778 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
2781 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2783 struct f2fs_inode *ri = F2FS_INODE(page);
2785 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2786 get_inline_xattr_addrs(inode)]);
2789 static inline int inline_xattr_size(struct inode *inode)
2791 if (f2fs_has_inline_xattr(inode))
2792 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2796 static inline int f2fs_has_inline_data(struct inode *inode)
2798 return is_inode_flag_set(inode, FI_INLINE_DATA);
2801 static inline int f2fs_exist_data(struct inode *inode)
2803 return is_inode_flag_set(inode, FI_DATA_EXIST);
2806 static inline int f2fs_has_inline_dots(struct inode *inode)
2808 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2811 static inline int f2fs_is_mmap_file(struct inode *inode)
2813 return is_inode_flag_set(inode, FI_MMAP_FILE);
2816 static inline bool f2fs_is_pinned_file(struct inode *inode)
2818 return is_inode_flag_set(inode, FI_PIN_FILE);
2821 static inline bool f2fs_is_atomic_file(struct inode *inode)
2823 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2826 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2828 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2831 static inline bool f2fs_is_volatile_file(struct inode *inode)
2833 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2836 static inline bool f2fs_is_first_block_written(struct inode *inode)
2838 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2841 static inline bool f2fs_is_drop_cache(struct inode *inode)
2843 return is_inode_flag_set(inode, FI_DROP_CACHE);
2846 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2848 struct f2fs_inode *ri = F2FS_INODE(page);
2849 int extra_size = get_extra_isize(inode);
2851 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2854 static inline int f2fs_has_inline_dentry(struct inode *inode)
2856 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2859 static inline int is_file(struct inode *inode, int type)
2861 return F2FS_I(inode)->i_advise & type;
2864 static inline void set_file(struct inode *inode, int type)
2866 F2FS_I(inode)->i_advise |= type;
2867 f2fs_mark_inode_dirty_sync(inode, true);
2870 static inline void clear_file(struct inode *inode, int type)
2872 F2FS_I(inode)->i_advise &= ~type;
2873 f2fs_mark_inode_dirty_sync(inode, true);
2876 static inline bool f2fs_is_time_consistent(struct inode *inode)
2878 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2880 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2882 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2884 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
2885 &F2FS_I(inode)->i_crtime))
2890 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2895 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2897 spin_lock(&sbi->inode_lock[DIRTY_META]);
2898 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2899 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2902 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2903 file_keep_isize(inode) ||
2904 i_size_read(inode) & ~PAGE_MASK)
2907 if (!f2fs_is_time_consistent(inode))
2910 spin_lock(&F2FS_I(inode)->i_size_lock);
2911 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2912 spin_unlock(&F2FS_I(inode)->i_size_lock);
2917 static inline bool f2fs_readonly(struct super_block *sb)
2919 return sb_rdonly(sb);
2922 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2924 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2927 static inline bool is_dot_dotdot(const u8 *name, size_t len)
2929 if (len == 1 && name[0] == '.')
2932 if (len == 2 && name[0] == '.' && name[1] == '.')
2938 static inline bool f2fs_may_extent_tree(struct inode *inode)
2940 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2942 if (!test_opt(sbi, EXTENT_CACHE) ||
2943 is_inode_flag_set(inode, FI_NO_EXTENT) ||
2944 is_inode_flag_set(inode, FI_COMPRESSED_FILE))
2948 * for recovered files during mount do not create extents
2949 * if shrinker is not registered.
2951 if (list_empty(&sbi->s_list))
2954 return S_ISREG(inode->i_mode);
2957 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2958 size_t size, gfp_t flags)
2960 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2961 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
2965 return kmalloc(size, flags);
2968 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2969 size_t size, gfp_t flags)
2971 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2974 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2975 size_t size, gfp_t flags)
2977 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2978 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
2982 return kvmalloc(size, flags);
2985 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2986 size_t size, gfp_t flags)
2988 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2991 static inline int get_extra_isize(struct inode *inode)
2993 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2996 static inline int get_inline_xattr_addrs(struct inode *inode)
2998 return F2FS_I(inode)->i_inline_xattr_size;
3001 #define f2fs_get_inode_mode(i) \
3002 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3003 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3005 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3006 (offsetof(struct f2fs_inode, i_extra_end) - \
3007 offsetof(struct f2fs_inode, i_extra_isize)) \
3009 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3010 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3011 ((offsetof(typeof(*(f2fs_inode)), field) + \
3012 sizeof((f2fs_inode)->field)) \
3013 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3015 #define DEFAULT_IOSTAT_PERIOD_MS 3000
3016 #define MIN_IOSTAT_PERIOD_MS 100
3017 /* maximum period of iostat tracing is 1 day */
3018 #define MAX_IOSTAT_PERIOD_MS 8640000
3020 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
3024 spin_lock(&sbi->iostat_lock);
3025 for (i = 0; i < NR_IO_TYPE; i++) {
3026 sbi->rw_iostat[i] = 0;
3027 sbi->prev_rw_iostat[i] = 0;
3029 spin_unlock(&sbi->iostat_lock);
3032 extern void f2fs_record_iostat(struct f2fs_sb_info *sbi);
3034 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
3035 enum iostat_type type, unsigned long long io_bytes)
3037 if (!sbi->iostat_enable)
3039 spin_lock(&sbi->iostat_lock);
3040 sbi->rw_iostat[type] += io_bytes;
3042 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
3043 sbi->rw_iostat[APP_BUFFERED_IO] =
3044 sbi->rw_iostat[APP_WRITE_IO] -
3045 sbi->rw_iostat[APP_DIRECT_IO];
3047 if (type == APP_READ_IO || type == APP_DIRECT_READ_IO)
3048 sbi->rw_iostat[APP_BUFFERED_READ_IO] =
3049 sbi->rw_iostat[APP_READ_IO] -
3050 sbi->rw_iostat[APP_DIRECT_READ_IO];
3051 spin_unlock(&sbi->iostat_lock);
3053 f2fs_record_iostat(sbi);
3056 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3058 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3060 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3061 block_t blkaddr, int type);
3062 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3063 block_t blkaddr, int type)
3065 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3066 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3068 f2fs_bug_on(sbi, 1);
3072 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3074 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3075 blkaddr == COMPRESS_ADDR)
3080 static inline void f2fs_set_page_private(struct page *page,
3083 if (PagePrivate(page))
3086 attach_page_private(page, (void *)data);
3089 static inline void f2fs_clear_page_private(struct page *page)
3091 detach_page_private(page);
3097 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3098 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3099 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3100 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3101 int f2fs_truncate(struct inode *inode);
3102 int f2fs_getattr(const struct path *path, struct kstat *stat,
3103 u32 request_mask, unsigned int flags);
3104 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
3105 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3106 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3107 int f2fs_precache_extents(struct inode *inode);
3108 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3109 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3110 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3111 int f2fs_pin_file_control(struct inode *inode, bool inc);
3116 void f2fs_set_inode_flags(struct inode *inode);
3117 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3118 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3119 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3120 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3121 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3122 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3123 void f2fs_update_inode_page(struct inode *inode);
3124 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3125 void f2fs_evict_inode(struct inode *inode);
3126 void f2fs_handle_failed_inode(struct inode *inode);
3131 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3132 bool hot, bool set);
3133 struct dentry *f2fs_get_parent(struct dentry *child);
3138 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3139 int f2fs_init_casefolded_name(const struct inode *dir,
3140 struct f2fs_filename *fname);
3141 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3142 int lookup, struct f2fs_filename *fname);
3143 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3144 struct f2fs_filename *fname);
3145 void f2fs_free_filename(struct f2fs_filename *fname);
3146 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3147 const struct f2fs_filename *fname, int *max_slots);
3148 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3149 unsigned int start_pos, struct fscrypt_str *fstr);
3150 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3151 struct f2fs_dentry_ptr *d);
3152 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3153 const struct f2fs_filename *fname, struct page *dpage);
3154 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3155 unsigned int current_depth);
3156 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3157 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3158 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3159 const struct f2fs_filename *fname,
3160 struct page **res_page);
3161 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3162 const struct qstr *child, struct page **res_page);
3163 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3164 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3165 struct page **page);
3166 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3167 struct page *page, struct inode *inode);
3168 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3169 const struct f2fs_filename *fname);
3170 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3171 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3172 unsigned int bit_pos);
3173 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3174 struct inode *inode, nid_t ino, umode_t mode);
3175 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3176 struct inode *inode, nid_t ino, umode_t mode);
3177 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3178 struct inode *inode, nid_t ino, umode_t mode);
3179 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3180 struct inode *dir, struct inode *inode);
3181 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3182 bool f2fs_empty_dir(struct inode *dir);
3184 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3186 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3187 inode, inode->i_ino, inode->i_mode);
3193 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3194 void f2fs_inode_synced(struct inode *inode);
3195 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3196 int f2fs_quota_sync(struct super_block *sb, int type);
3197 void f2fs_quota_off_umount(struct super_block *sb);
3198 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3199 int f2fs_sync_fs(struct super_block *sb, int sync);
3200 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3205 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3210 struct dnode_of_data;
3213 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3214 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3215 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3216 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3217 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3218 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3219 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3220 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3221 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3222 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3223 struct node_info *ni);
3224 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3225 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3226 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3227 int f2fs_truncate_xattr_node(struct inode *inode);
3228 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3229 unsigned int seq_id);
3230 int f2fs_remove_inode_page(struct inode *inode);
3231 struct page *f2fs_new_inode_page(struct inode *inode);
3232 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3233 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3234 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3235 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3236 int f2fs_move_node_page(struct page *node_page, int gc_type);
3237 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3238 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3239 struct writeback_control *wbc, bool atomic,
3240 unsigned int *seq_id);
3241 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3242 struct writeback_control *wbc,
3243 bool do_balance, enum iostat_type io_type);
3244 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3245 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3246 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3247 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3248 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3249 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3250 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3251 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3252 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3253 unsigned int segno, struct f2fs_summary_block *sum);
3254 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3255 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3256 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3257 int __init f2fs_create_node_manager_caches(void);
3258 void f2fs_destroy_node_manager_caches(void);
3263 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3264 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3265 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3266 void f2fs_drop_inmem_pages(struct inode *inode);
3267 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3268 int f2fs_commit_inmem_pages(struct inode *inode);
3269 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3270 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3271 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3272 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3273 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3274 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3275 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3276 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3277 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3278 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3279 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3280 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3281 struct cp_control *cpc);
3282 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3283 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3284 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3285 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3286 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3287 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3288 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3289 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3290 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3291 unsigned int *newseg, bool new_sec, int dir);
3292 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3293 unsigned int start, unsigned int end);
3294 void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type);
3295 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3296 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3297 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3298 struct cp_control *cpc);
3299 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3300 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3302 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3303 enum iostat_type io_type);
3304 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3305 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3306 struct f2fs_io_info *fio);
3307 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3308 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3309 block_t old_blkaddr, block_t new_blkaddr,
3310 bool recover_curseg, bool recover_newaddr,
3312 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3313 block_t old_addr, block_t new_addr,
3314 unsigned char version, bool recover_curseg,
3315 bool recover_newaddr);
3316 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3317 block_t old_blkaddr, block_t *new_blkaddr,
3318 struct f2fs_summary *sum, int type,
3319 struct f2fs_io_info *fio);
3320 void f2fs_wait_on_page_writeback(struct page *page,
3321 enum page_type type, bool ordered, bool locked);
3322 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3323 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3325 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3326 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3327 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3328 unsigned int val, int alloc);
3329 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3330 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3331 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3332 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3333 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3334 int __init f2fs_create_segment_manager_caches(void);
3335 void f2fs_destroy_segment_manager_caches(void);
3336 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3337 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3338 enum page_type type, enum temp_type temp);
3339 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3340 unsigned int segno);
3341 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3342 unsigned int segno);
3347 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3348 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3349 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3350 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3351 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3352 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3353 block_t blkaddr, int type);
3354 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3355 int type, bool sync);
3356 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3357 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3358 long nr_to_write, enum iostat_type io_type);
3359 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3360 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3361 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3362 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3363 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3364 unsigned int devidx, int type);
3365 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3366 unsigned int devidx, int type);
3367 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3368 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3369 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3370 void f2fs_add_orphan_inode(struct inode *inode);
3371 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3372 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3373 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3374 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3375 void f2fs_remove_dirty_inode(struct inode *inode);
3376 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3377 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3378 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3379 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3380 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3381 int __init f2fs_create_checkpoint_caches(void);
3382 void f2fs_destroy_checkpoint_caches(void);
3387 int __init f2fs_init_bioset(void);
3388 void f2fs_destroy_bioset(void);
3389 struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool noio);
3390 int f2fs_init_bio_entry_cache(void);
3391 void f2fs_destroy_bio_entry_cache(void);
3392 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3393 struct bio *bio, enum page_type type);
3394 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3395 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3396 struct inode *inode, struct page *page,
3397 nid_t ino, enum page_type type);
3398 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3399 struct bio **bio, struct page *page);
3400 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3401 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3402 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3403 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3404 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3405 block_t blk_addr, struct bio *bio);
3406 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3407 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3408 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3409 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3410 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3411 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3412 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
3413 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3414 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3415 int op_flags, bool for_write);
3416 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3417 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3419 struct page *f2fs_get_new_data_page(struct inode *inode,
3420 struct page *ipage, pgoff_t index, bool new_i_size);
3421 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3422 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3423 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3424 int create, int flag);
3425 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3426 u64 start, u64 len);
3427 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3428 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3429 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3430 int f2fs_write_single_data_page(struct page *page, int *submitted,
3431 struct bio **bio, sector_t *last_block,
3432 struct writeback_control *wbc,
3433 enum iostat_type io_type,
3435 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3436 unsigned int length);
3437 int f2fs_release_page(struct page *page, gfp_t wait);
3438 #ifdef CONFIG_MIGRATION
3439 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3440 struct page *page, enum migrate_mode mode);
3442 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3443 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3444 int f2fs_init_post_read_processing(void);
3445 void f2fs_destroy_post_read_processing(void);
3446 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3447 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3452 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3453 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3454 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3455 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3456 unsigned int segno);
3457 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3458 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3459 int __init f2fs_create_garbage_collection_cache(void);
3460 void f2fs_destroy_garbage_collection_cache(void);
3465 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3466 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3471 #ifdef CONFIG_F2FS_STAT_FS
3472 struct f2fs_stat_info {
3473 struct list_head stat_list;
3474 struct f2fs_sb_info *sbi;
3475 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3476 int main_area_segs, main_area_sections, main_area_zones;
3477 unsigned long long hit_largest, hit_cached, hit_rbtree;
3478 unsigned long long hit_total, total_ext;
3479 int ext_tree, zombie_tree, ext_node;
3480 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3481 int ndirty_data, ndirty_qdata;
3483 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3484 int nats, dirty_nats, sits, dirty_sits;
3485 int free_nids, avail_nids, alloc_nids;
3486 int total_count, utilization;
3487 int bg_gc, nr_wb_cp_data, nr_wb_data;
3488 int nr_rd_data, nr_rd_node, nr_rd_meta;
3489 int nr_dio_read, nr_dio_write;
3490 unsigned int io_skip_bggc, other_skip_bggc;
3491 int nr_flushing, nr_flushed, flush_list_empty;
3492 int nr_discarding, nr_discarded;
3494 unsigned int undiscard_blks;
3495 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3497 unsigned long long compr_blocks;
3498 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3499 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3500 unsigned int bimodal, avg_vblocks;
3501 int util_free, util_valid, util_invalid;
3502 int rsvd_segs, overp_segs;
3503 int dirty_count, node_pages, meta_pages;
3504 int prefree_count, call_count, cp_count, bg_cp_count;
3505 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3506 int bg_node_segs, bg_data_segs;
3507 int tot_blks, data_blks, node_blks;
3508 int bg_data_blks, bg_node_blks;
3509 unsigned long long skipped_atomic_files[2];
3510 int curseg[NR_CURSEG_TYPE];
3511 int cursec[NR_CURSEG_TYPE];
3512 int curzone[NR_CURSEG_TYPE];
3513 unsigned int dirty_seg[NR_CURSEG_TYPE];
3514 unsigned int full_seg[NR_CURSEG_TYPE];
3515 unsigned int valid_blks[NR_CURSEG_TYPE];
3517 unsigned int meta_count[META_MAX];
3518 unsigned int segment_count[2];
3519 unsigned int block_count[2];
3520 unsigned int inplace_count;
3521 unsigned long long base_mem, cache_mem, page_mem;
3524 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3526 return (struct f2fs_stat_info *)sbi->stat_info;
3529 #define stat_inc_cp_count(si) ((si)->cp_count++)
3530 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3531 #define stat_inc_call_count(si) ((si)->call_count++)
3532 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3533 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3534 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3535 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3536 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3537 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3538 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3539 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3540 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3541 #define stat_inc_inline_xattr(inode) \
3543 if (f2fs_has_inline_xattr(inode)) \
3544 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3546 #define stat_dec_inline_xattr(inode) \
3548 if (f2fs_has_inline_xattr(inode)) \
3549 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3551 #define stat_inc_inline_inode(inode) \
3553 if (f2fs_has_inline_data(inode)) \
3554 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3556 #define stat_dec_inline_inode(inode) \
3558 if (f2fs_has_inline_data(inode)) \
3559 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3561 #define stat_inc_inline_dir(inode) \
3563 if (f2fs_has_inline_dentry(inode)) \
3564 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3566 #define stat_dec_inline_dir(inode) \
3568 if (f2fs_has_inline_dentry(inode)) \
3569 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3571 #define stat_inc_compr_inode(inode) \
3573 if (f2fs_compressed_file(inode)) \
3574 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3576 #define stat_dec_compr_inode(inode) \
3578 if (f2fs_compressed_file(inode)) \
3579 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3581 #define stat_add_compr_blocks(inode, blocks) \
3582 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3583 #define stat_sub_compr_blocks(inode, blocks) \
3584 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3585 #define stat_inc_meta_count(sbi, blkaddr) \
3587 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3588 atomic_inc(&(sbi)->meta_count[META_CP]); \
3589 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3590 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3591 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3592 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3593 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3594 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3596 #define stat_inc_seg_type(sbi, curseg) \
3597 ((sbi)->segment_count[(curseg)->alloc_type]++)
3598 #define stat_inc_block_count(sbi, curseg) \
3599 ((sbi)->block_count[(curseg)->alloc_type]++)
3600 #define stat_inc_inplace_blocks(sbi) \
3601 (atomic_inc(&(sbi)->inplace_count))
3602 #define stat_update_max_atomic_write(inode) \
3604 int cur = F2FS_I_SB(inode)->atomic_files; \
3605 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3607 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3609 #define stat_inc_volatile_write(inode) \
3610 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3611 #define stat_dec_volatile_write(inode) \
3612 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3613 #define stat_update_max_volatile_write(inode) \
3615 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3616 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3618 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3620 #define stat_inc_seg_count(sbi, type, gc_type) \
3622 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3624 if ((type) == SUM_TYPE_DATA) { \
3626 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3629 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3633 #define stat_inc_tot_blk_count(si, blks) \
3634 ((si)->tot_blks += (blks))
3636 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3638 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3639 stat_inc_tot_blk_count(si, blks); \
3640 si->data_blks += (blks); \
3641 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3644 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3646 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3647 stat_inc_tot_blk_count(si, blks); \
3648 si->node_blks += (blks); \
3649 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3652 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3653 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3654 void __init f2fs_create_root_stats(void);
3655 void f2fs_destroy_root_stats(void);
3656 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
3658 #define stat_inc_cp_count(si) do { } while (0)
3659 #define stat_inc_bg_cp_count(si) do { } while (0)
3660 #define stat_inc_call_count(si) do { } while (0)
3661 #define stat_inc_bggc_count(si) do { } while (0)
3662 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3663 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3664 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3665 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3666 #define stat_inc_total_hit(sbi) do { } while (0)
3667 #define stat_inc_rbtree_node_hit(sbi) do { } while (0)
3668 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3669 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3670 #define stat_inc_inline_xattr(inode) do { } while (0)
3671 #define stat_dec_inline_xattr(inode) do { } while (0)
3672 #define stat_inc_inline_inode(inode) do { } while (0)
3673 #define stat_dec_inline_inode(inode) do { } while (0)
3674 #define stat_inc_inline_dir(inode) do { } while (0)
3675 #define stat_dec_inline_dir(inode) do { } while (0)
3676 #define stat_inc_compr_inode(inode) do { } while (0)
3677 #define stat_dec_compr_inode(inode) do { } while (0)
3678 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
3679 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
3680 #define stat_inc_atomic_write(inode) do { } while (0)
3681 #define stat_dec_atomic_write(inode) do { } while (0)
3682 #define stat_update_max_atomic_write(inode) do { } while (0)
3683 #define stat_inc_volatile_write(inode) do { } while (0)
3684 #define stat_dec_volatile_write(inode) do { } while (0)
3685 #define stat_update_max_volatile_write(inode) do { } while (0)
3686 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3687 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3688 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3689 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3690 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3691 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3692 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3693 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3695 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3696 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3697 static inline void __init f2fs_create_root_stats(void) { }
3698 static inline void f2fs_destroy_root_stats(void) { }
3699 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
3702 extern const struct file_operations f2fs_dir_operations;
3703 extern const struct file_operations f2fs_file_operations;
3704 extern const struct inode_operations f2fs_file_inode_operations;
3705 extern const struct address_space_operations f2fs_dblock_aops;
3706 extern const struct address_space_operations f2fs_node_aops;
3707 extern const struct address_space_operations f2fs_meta_aops;
3708 extern const struct inode_operations f2fs_dir_inode_operations;
3709 extern const struct inode_operations f2fs_symlink_inode_operations;
3710 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3711 extern const struct inode_operations f2fs_special_inode_operations;
3712 extern struct kmem_cache *f2fs_inode_entry_slab;
3717 bool f2fs_may_inline_data(struct inode *inode);
3718 bool f2fs_may_inline_dentry(struct inode *inode);
3719 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3720 void f2fs_truncate_inline_inode(struct inode *inode,
3721 struct page *ipage, u64 from);
3722 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3723 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3724 int f2fs_convert_inline_inode(struct inode *inode);
3725 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
3726 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3727 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3728 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3729 const struct f2fs_filename *fname,
3730 struct page **res_page);
3731 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3732 struct page *ipage);
3733 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
3734 struct inode *inode, nid_t ino, umode_t mode);
3735 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3736 struct page *page, struct inode *dir,
3737 struct inode *inode);
3738 bool f2fs_empty_inline_dir(struct inode *dir);
3739 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3740 struct fscrypt_str *fstr);
3741 int f2fs_inline_data_fiemap(struct inode *inode,
3742 struct fiemap_extent_info *fieinfo,
3743 __u64 start, __u64 len);
3748 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3749 struct shrink_control *sc);
3750 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3751 struct shrink_control *sc);
3752 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3753 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3758 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
3759 struct rb_entry *cached_re, unsigned int ofs);
3760 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
3761 struct rb_root_cached *root,
3762 struct rb_node **parent,
3763 unsigned long long key, bool *left_most);
3764 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3765 struct rb_root_cached *root,
3766 struct rb_node **parent,
3767 unsigned int ofs, bool *leftmost);
3768 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
3769 struct rb_entry *cached_re, unsigned int ofs,
3770 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3771 struct rb_node ***insert_p, struct rb_node **insert_parent,
3772 bool force, bool *leftmost);
3773 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3774 struct rb_root_cached *root, bool check_key);
3775 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3776 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
3777 void f2fs_drop_extent_tree(struct inode *inode);
3778 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3779 void f2fs_destroy_extent_tree(struct inode *inode);
3780 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3781 struct extent_info *ei);
3782 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3783 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3784 pgoff_t fofs, block_t blkaddr, unsigned int len);
3785 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3786 int __init f2fs_create_extent_cache(void);
3787 void f2fs_destroy_extent_cache(void);
3792 int __init f2fs_init_sysfs(void);
3793 void f2fs_exit_sysfs(void);
3794 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3795 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3798 extern const struct fsverity_operations f2fs_verityops;
3803 static inline bool f2fs_encrypted_file(struct inode *inode)
3805 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
3808 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3810 #ifdef CONFIG_FS_ENCRYPTION
3811 file_set_encrypt(inode);
3812 f2fs_set_inode_flags(inode);
3817 * Returns true if the reads of the inode's data need to undergo some
3818 * postprocessing step, like decryption or authenticity verification.
3820 static inline bool f2fs_post_read_required(struct inode *inode)
3822 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
3823 f2fs_compressed_file(inode);
3829 #ifdef CONFIG_F2FS_FS_COMPRESSION
3830 bool f2fs_is_compressed_page(struct page *page);
3831 struct page *f2fs_compress_control_page(struct page *page);
3832 int f2fs_prepare_compress_overwrite(struct inode *inode,
3833 struct page **pagep, pgoff_t index, void **fsdata);
3834 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
3835 pgoff_t index, unsigned copied);
3836 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
3837 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
3838 bool f2fs_is_compress_backend_ready(struct inode *inode);
3839 int f2fs_init_compress_mempool(void);
3840 void f2fs_destroy_compress_mempool(void);
3841 void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity);
3842 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
3843 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
3844 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
3845 int f2fs_write_multi_pages(struct compress_ctx *cc,
3847 struct writeback_control *wbc,
3848 enum iostat_type io_type);
3849 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
3850 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
3851 unsigned nr_pages, sector_t *last_block_in_bio,
3852 bool is_readahead, bool for_write);
3853 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
3854 void f2fs_free_dic(struct decompress_io_ctx *dic);
3855 void f2fs_decompress_end_io(struct page **rpages,
3856 unsigned int cluster_size, bool err, bool verity);
3857 int f2fs_init_compress_ctx(struct compress_ctx *cc);
3858 void f2fs_destroy_compress_ctx(struct compress_ctx *cc);
3859 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
3860 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
3861 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
3862 int __init f2fs_init_compress_cache(void);
3863 void f2fs_destroy_compress_cache(void);
3865 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
3866 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
3868 if (!f2fs_compressed_file(inode))
3870 /* not support compression */
3873 static inline struct page *f2fs_compress_control_page(struct page *page)
3876 return ERR_PTR(-EINVAL);
3878 static inline int f2fs_init_compress_mempool(void) { return 0; }
3879 static inline void f2fs_destroy_compress_mempool(void) { }
3880 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
3881 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
3882 static inline int __init f2fs_init_compress_cache(void) { return 0; }
3883 static inline void f2fs_destroy_compress_cache(void) { }
3886 static inline void set_compress_context(struct inode *inode)
3888 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3890 F2FS_I(inode)->i_compress_algorithm =
3891 F2FS_OPTION(sbi).compress_algorithm;
3892 F2FS_I(inode)->i_log_cluster_size =
3893 F2FS_OPTION(sbi).compress_log_size;
3894 F2FS_I(inode)->i_compress_flag =
3895 F2FS_OPTION(sbi).compress_chksum ?
3896 1 << COMPRESS_CHKSUM : 0;
3897 F2FS_I(inode)->i_cluster_size =
3898 1 << F2FS_I(inode)->i_log_cluster_size;
3899 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
3900 set_inode_flag(inode, FI_COMPRESSED_FILE);
3901 stat_inc_compr_inode(inode);
3902 f2fs_mark_inode_dirty_sync(inode, true);
3905 static inline bool f2fs_disable_compressed_file(struct inode *inode)
3907 struct f2fs_inode_info *fi = F2FS_I(inode);
3909 if (!f2fs_compressed_file(inode))
3911 if (S_ISREG(inode->i_mode) &&
3912 (get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks)))
3915 fi->i_flags &= ~F2FS_COMPR_FL;
3916 stat_dec_compr_inode(inode);
3917 clear_inode_flag(inode, FI_COMPRESSED_FILE);
3918 f2fs_mark_inode_dirty_sync(inode, true);
3922 #define F2FS_FEATURE_FUNCS(name, flagname) \
3923 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
3925 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
3928 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3929 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3930 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3931 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3932 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3933 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3934 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3935 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3936 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3937 F2FS_FEATURE_FUNCS(verity, VERITY);
3938 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
3939 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
3940 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
3942 #ifdef CONFIG_BLK_DEV_ZONED
3943 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
3946 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3948 return test_bit(zno, FDEV(devi).blkz_seq);
3952 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
3954 return f2fs_sb_has_blkzoned(sbi);
3957 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
3959 return blk_queue_discard(bdev_get_queue(bdev)) ||
3960 bdev_is_zoned(bdev);
3963 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
3967 if (!f2fs_is_multi_device(sbi))
3968 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
3970 for (i = 0; i < sbi->s_ndevs; i++)
3971 if (f2fs_bdev_support_discard(FDEV(i).bdev))
3976 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
3978 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
3979 f2fs_hw_should_discard(sbi);
3982 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
3986 if (!f2fs_is_multi_device(sbi))
3987 return bdev_read_only(sbi->sb->s_bdev);
3989 for (i = 0; i < sbi->s_ndevs; i++)
3990 if (bdev_read_only(FDEV(i).bdev))
3995 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
3997 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4000 static inline bool f2fs_may_compress(struct inode *inode)
4002 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4003 f2fs_is_atomic_file(inode) ||
4004 f2fs_is_volatile_file(inode))
4006 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4009 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4010 u64 blocks, bool add)
4012 int diff = F2FS_I(inode)->i_cluster_size - blocks;
4013 struct f2fs_inode_info *fi = F2FS_I(inode);
4015 /* don't update i_compr_blocks if saved blocks were released */
4016 if (!add && !atomic_read(&fi->i_compr_blocks))
4020 atomic_add(diff, &fi->i_compr_blocks);
4021 stat_add_compr_blocks(inode, diff);
4023 atomic_sub(diff, &fi->i_compr_blocks);
4024 stat_sub_compr_blocks(inode, diff);
4026 f2fs_mark_inode_dirty_sync(inode, true);
4029 static inline int block_unaligned_IO(struct inode *inode,
4030 struct kiocb *iocb, struct iov_iter *iter)
4032 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4033 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4034 loff_t offset = iocb->ki_pos;
4035 unsigned long align = offset | iov_iter_alignment(iter);
4037 return align & blocksize_mask;
4040 static inline int allow_outplace_dio(struct inode *inode,
4041 struct kiocb *iocb, struct iov_iter *iter)
4043 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4044 int rw = iov_iter_rw(iter);
4046 return (f2fs_lfs_mode(sbi) && (rw == WRITE) &&
4047 !block_unaligned_IO(inode, iocb, iter));
4050 static inline bool f2fs_force_buffered_io(struct inode *inode,
4051 struct kiocb *iocb, struct iov_iter *iter)
4053 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4054 int rw = iov_iter_rw(iter);
4056 if (f2fs_post_read_required(inode))
4058 if (f2fs_is_multi_device(sbi))
4061 * for blkzoned device, fallback direct IO to buffered IO, so
4062 * all IOs can be serialized by log-structured write.
4064 if (f2fs_sb_has_blkzoned(sbi))
4066 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4067 if (block_unaligned_IO(inode, iocb, iter))
4069 if (F2FS_IO_ALIGNED(sbi))
4072 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED) &&
4073 !IS_SWAPFILE(inode))
4079 #ifdef CONFIG_F2FS_FAULT_INJECTION
4080 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4083 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4086 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4089 if (f2fs_sb_has_quota_ino(sbi))
4091 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4092 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4093 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4099 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4100 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4102 #endif /* _LINUX_F2FS_H */