1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/vmalloc.h>
22 #include <linux/bio.h>
23 #include <linux/blkdev.h>
24 #include <linux/quotaops.h>
25 #include <linux/part_stat.h>
26 #include <crypto/hash.h>
28 #include <linux/fscrypt.h>
29 #include <linux/fsverity.h>
33 #ifdef CONFIG_F2FS_CHECK_FS
34 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
36 #define f2fs_bug_on(sbi, condition) \
38 if (WARN_ON(condition)) \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
48 FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
65 #ifdef CONFIG_F2FS_FAULT_INJECTION
66 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
68 struct f2fs_fault_info {
70 unsigned int inject_rate;
71 unsigned int inject_type;
74 extern const char *f2fs_fault_name[FAULT_MAX];
75 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
81 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
82 #define F2FS_MOUNT_DISCARD 0x00000004
83 #define F2FS_MOUNT_NOHEAP 0x00000008
84 #define F2FS_MOUNT_XATTR_USER 0x00000010
85 #define F2FS_MOUNT_POSIX_ACL 0x00000020
86 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
87 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
88 #define F2FS_MOUNT_INLINE_DATA 0x00000100
89 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
90 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
91 #define F2FS_MOUNT_NOBARRIER 0x00000800
92 #define F2FS_MOUNT_FASTBOOT 0x00001000
93 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
94 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
95 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
96 #define F2FS_MOUNT_USRQUOTA 0x00080000
97 #define F2FS_MOUNT_GRPQUOTA 0x00100000
98 #define F2FS_MOUNT_PRJQUOTA 0x00200000
99 #define F2FS_MOUNT_QUOTA 0x00400000
100 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
101 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
102 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
103 #define F2FS_MOUNT_NORECOVERY 0x04000000
104 #define F2FS_MOUNT_ATGC 0x08000000
105 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
106 #define F2FS_MOUNT_GC_MERGE 0x20000000
107 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
109 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
110 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
111 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
112 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
114 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
115 typecheck(unsigned long long, b) && \
116 ((long long)((a) - (b)) > 0))
118 typedef u32 block_t; /*
119 * should not change u32, since it is the on-disk block
120 * address format, __le32.
124 #define COMPRESS_EXT_NUM 16
127 * An implementation of an rwsem that is explicitly unfair to readers. This
128 * prevents priority inversion when a low-priority reader acquires the read lock
129 * while sleeping on the write lock but the write lock is needed by
130 * higher-priority clients.
134 struct rw_semaphore internal_rwsem;
135 wait_queue_head_t read_waiters;
138 struct f2fs_mount_info {
140 int write_io_size_bits; /* Write IO size bits */
141 block_t root_reserved_blocks; /* root reserved blocks */
142 kuid_t s_resuid; /* reserved blocks for uid */
143 kgid_t s_resgid; /* reserved blocks for gid */
144 int active_logs; /* # of active logs */
145 int inline_xattr_size; /* inline xattr size */
146 #ifdef CONFIG_F2FS_FAULT_INJECTION
147 struct f2fs_fault_info fault_info; /* For fault injection */
150 /* Names of quota files with journalled quota */
151 char *s_qf_names[MAXQUOTAS];
152 int s_jquota_fmt; /* Format of quota to use */
154 /* For which write hints are passed down to block layer */
156 int alloc_mode; /* segment allocation policy */
157 int fsync_mode; /* fsync policy */
158 int fs_mode; /* fs mode: LFS or ADAPTIVE */
159 int bggc_mode; /* bggc mode: off, on or sync */
161 * discard command's offset/size should
162 * be aligned to this unit: block,
165 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
166 block_t unusable_cap_perc; /* percentage for cap */
167 block_t unusable_cap; /* Amount of space allowed to be
168 * unusable when disabling checkpoint
171 /* For compression */
172 unsigned char compress_algorithm; /* algorithm type */
173 unsigned char compress_log_size; /* cluster log size */
174 unsigned char compress_level; /* compress level */
175 bool compress_chksum; /* compressed data chksum */
176 unsigned char compress_ext_cnt; /* extension count */
177 unsigned char nocompress_ext_cnt; /* nocompress extension count */
178 int compress_mode; /* compression mode */
179 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
180 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
183 #define F2FS_FEATURE_ENCRYPT 0x0001
184 #define F2FS_FEATURE_BLKZONED 0x0002
185 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
186 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
187 #define F2FS_FEATURE_PRJQUOTA 0x0010
188 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
189 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
190 #define F2FS_FEATURE_QUOTA_INO 0x0080
191 #define F2FS_FEATURE_INODE_CRTIME 0x0100
192 #define F2FS_FEATURE_LOST_FOUND 0x0200
193 #define F2FS_FEATURE_VERITY 0x0400
194 #define F2FS_FEATURE_SB_CHKSUM 0x0800
195 #define F2FS_FEATURE_CASEFOLD 0x1000
196 #define F2FS_FEATURE_COMPRESSION 0x2000
197 #define F2FS_FEATURE_RO 0x4000
199 #define __F2FS_HAS_FEATURE(raw_super, mask) \
200 ((raw_super->feature & cpu_to_le32(mask)) != 0)
201 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
202 #define F2FS_SET_FEATURE(sbi, mask) \
203 (sbi->raw_super->feature |= cpu_to_le32(mask))
204 #define F2FS_CLEAR_FEATURE(sbi, mask) \
205 (sbi->raw_super->feature &= ~cpu_to_le32(mask))
208 * Default values for user and/or group using reserved blocks
210 #define F2FS_DEF_RESUID 0
211 #define F2FS_DEF_RESGID 0
214 * For checkpoint manager
221 #define CP_UMOUNT 0x00000001
222 #define CP_FASTBOOT 0x00000002
223 #define CP_SYNC 0x00000004
224 #define CP_RECOVERY 0x00000008
225 #define CP_DISCARD 0x00000010
226 #define CP_TRIMMED 0x00000020
227 #define CP_PAUSE 0x00000040
228 #define CP_RESIZE 0x00000080
230 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
231 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
232 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
233 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
234 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
235 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
236 #define DEF_CP_INTERVAL 60 /* 60 secs */
237 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
238 #define DEF_DISABLE_INTERVAL 5 /* 5 secs */
239 #define DEF_DISABLE_QUICK_INTERVAL 1 /* 1 secs */
240 #define DEF_UMOUNT_DISCARD_TIMEOUT 5 /* 5 secs */
250 * indicate meta/data type
259 DATA_GENERIC, /* check range only */
260 DATA_GENERIC_ENHANCE, /* strong check on range and segment bitmap */
261 DATA_GENERIC_ENHANCE_READ, /*
262 * strong check on range and segment
263 * bitmap but no warning due to race
264 * condition of read on truncated area
270 /* for the list of ino */
272 ORPHAN_INO, /* for orphan ino list */
273 APPEND_INO, /* for append ino list */
274 UPDATE_INO, /* for update ino list */
275 TRANS_DIR_INO, /* for trasactions dir ino list */
276 FLUSH_INO, /* for multiple device flushing */
277 MAX_INO_ENTRY, /* max. list */
281 struct list_head list; /* list head */
282 nid_t ino; /* inode number */
283 unsigned int dirty_device; /* dirty device bitmap */
286 /* for the list of inodes to be GCed */
288 struct list_head list; /* list head */
289 struct inode *inode; /* vfs inode pointer */
292 struct fsync_node_entry {
293 struct list_head list; /* list head */
294 struct page *page; /* warm node page pointer */
295 unsigned int seq_id; /* sequence id */
299 struct completion wait; /* completion for checkpoint done */
300 struct llist_node llnode; /* llist_node to be linked in wait queue */
301 int ret; /* return code of checkpoint */
302 ktime_t queue_time; /* request queued time */
305 struct ckpt_req_control {
306 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
307 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
308 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
309 atomic_t issued_ckpt; /* # of actually issued ckpts */
310 atomic_t total_ckpt; /* # of total ckpts */
311 atomic_t queued_ckpt; /* # of queued ckpts */
312 struct llist_head issue_list; /* list for command issue */
313 spinlock_t stat_lock; /* lock for below checkpoint time stats */
314 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
315 unsigned int peak_time; /* peak wait time in msec until now */
318 /* for the bitmap indicate blocks to be discarded */
319 struct discard_entry {
320 struct list_head list; /* list head */
321 block_t start_blkaddr; /* start blockaddr of current segment */
322 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
325 /* default discard granularity of inner discard thread, unit: block count */
326 #define DEFAULT_DISCARD_GRANULARITY 16
328 /* max discard pend list number */
329 #define MAX_PLIST_NUM 512
330 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
331 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
334 D_PREP, /* initial */
335 D_PARTIAL, /* partially submitted */
336 D_SUBMIT, /* all submitted */
337 D_DONE, /* finished */
340 struct discard_info {
341 block_t lstart; /* logical start address */
342 block_t len; /* length */
343 block_t start; /* actual start address in dev */
347 struct rb_node rb_node; /* rb node located in rb-tree */
350 block_t lstart; /* logical start address */
351 block_t len; /* length */
352 block_t start; /* actual start address in dev */
354 struct discard_info di; /* discard info */
357 struct list_head list; /* command list */
358 struct completion wait; /* compleation */
359 struct block_device *bdev; /* bdev */
360 unsigned short ref; /* reference count */
361 unsigned char state; /* state */
362 unsigned char queued; /* queued discard */
363 int error; /* bio error */
364 spinlock_t lock; /* for state/bio_ref updating */
365 unsigned short bio_ref; /* bio reference count */
376 struct discard_policy {
377 int type; /* type of discard */
378 unsigned int min_interval; /* used for candidates exist */
379 unsigned int mid_interval; /* used for device busy */
380 unsigned int max_interval; /* used for candidates not exist */
381 unsigned int max_requests; /* # of discards issued per round */
382 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
383 bool io_aware; /* issue discard in idle time */
384 bool sync; /* submit discard with REQ_SYNC flag */
385 bool ordered; /* issue discard by lba order */
386 bool timeout; /* discard timeout for put_super */
387 unsigned int granularity; /* discard granularity */
390 struct discard_cmd_control {
391 struct task_struct *f2fs_issue_discard; /* discard thread */
392 struct list_head entry_list; /* 4KB discard entry list */
393 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
394 struct list_head wait_list; /* store on-flushing entries */
395 struct list_head fstrim_list; /* in-flight discard from fstrim */
396 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
397 unsigned int discard_wake; /* to wake up discard thread */
398 struct mutex cmd_lock;
399 unsigned int nr_discards; /* # of discards in the list */
400 unsigned int max_discards; /* max. discards to be issued */
401 unsigned int max_discard_request; /* max. discard request per round */
402 unsigned int min_discard_issue_time; /* min. interval between discard issue */
403 unsigned int mid_discard_issue_time; /* mid. interval between discard issue */
404 unsigned int max_discard_issue_time; /* max. interval between discard issue */
405 unsigned int discard_granularity; /* discard granularity */
406 unsigned int undiscard_blks; /* # of undiscard blocks */
407 unsigned int next_pos; /* next discard position */
408 atomic_t issued_discard; /* # of issued discard */
409 atomic_t queued_discard; /* # of queued discard */
410 atomic_t discard_cmd_cnt; /* # of cached cmd count */
411 struct rb_root_cached root; /* root of discard rb-tree */
412 bool rbtree_check; /* config for consistence check */
415 /* for the list of fsync inodes, used only during recovery */
416 struct fsync_inode_entry {
417 struct list_head list; /* list head */
418 struct inode *inode; /* vfs inode pointer */
419 block_t blkaddr; /* block address locating the last fsync */
420 block_t last_dentry; /* block address locating the last dentry */
423 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
424 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
426 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
427 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
428 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
429 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
431 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
432 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
434 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
436 int before = nats_in_cursum(journal);
438 journal->n_nats = cpu_to_le16(before + i);
442 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
444 int before = sits_in_cursum(journal);
446 journal->n_sits = cpu_to_le16(before + i);
450 static inline bool __has_cursum_space(struct f2fs_journal *journal,
453 if (type == NAT_JOURNAL)
454 return size <= MAX_NAT_JENTRIES(journal);
455 return size <= MAX_SIT_JENTRIES(journal);
458 /* for inline stuff */
459 #define DEF_INLINE_RESERVED_SIZE 1
460 static inline int get_extra_isize(struct inode *inode);
461 static inline int get_inline_xattr_addrs(struct inode *inode);
462 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
463 (CUR_ADDRS_PER_INODE(inode) - \
464 get_inline_xattr_addrs(inode) - \
465 DEF_INLINE_RESERVED_SIZE))
468 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
469 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
471 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
472 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
473 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
474 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
475 NR_INLINE_DENTRY(inode) + \
476 INLINE_DENTRY_BITMAP_SIZE(inode)))
479 * For INODE and NODE manager
481 /* for directory operations */
483 struct f2fs_filename {
485 * The filename the user specified. This is NULL for some
486 * filesystem-internal operations, e.g. converting an inline directory
487 * to a non-inline one, or roll-forward recovering an encrypted dentry.
489 const struct qstr *usr_fname;
492 * The on-disk filename. For encrypted directories, this is encrypted.
493 * This may be NULL for lookups in an encrypted dir without the key.
495 struct fscrypt_str disk_name;
497 /* The dirhash of this filename */
500 #ifdef CONFIG_FS_ENCRYPTION
502 * For lookups in encrypted directories: either the buffer backing
503 * disk_name, or a buffer that holds the decoded no-key name.
505 struct fscrypt_str crypto_buf;
507 #ifdef CONFIG_UNICODE
509 * For casefolded directories: the casefolded name, but it's left NULL
510 * if the original name is not valid Unicode, if the directory is both
511 * casefolded and encrypted and its encryption key is unavailable, or if
512 * the filesystem is doing an internal operation where usr_fname is also
513 * NULL. In all these cases we fall back to treating the name as an
514 * opaque byte sequence.
516 struct fscrypt_str cf_name;
520 struct f2fs_dentry_ptr {
523 struct f2fs_dir_entry *dentry;
524 __u8 (*filename)[F2FS_SLOT_LEN];
529 static inline void make_dentry_ptr_block(struct inode *inode,
530 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
533 d->max = NR_DENTRY_IN_BLOCK;
534 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
535 d->bitmap = t->dentry_bitmap;
536 d->dentry = t->dentry;
537 d->filename = t->filename;
540 static inline void make_dentry_ptr_inline(struct inode *inode,
541 struct f2fs_dentry_ptr *d, void *t)
543 int entry_cnt = NR_INLINE_DENTRY(inode);
544 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
545 int reserved_size = INLINE_RESERVED_SIZE(inode);
549 d->nr_bitmap = bitmap_size;
551 d->dentry = t + bitmap_size + reserved_size;
552 d->filename = t + bitmap_size + reserved_size +
553 SIZE_OF_DIR_ENTRY * entry_cnt;
557 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
558 * as its node offset to distinguish from index node blocks.
559 * But some bits are used to mark the node block.
561 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
564 ALLOC_NODE, /* allocate a new node page if needed */
565 LOOKUP_NODE, /* look up a node without readahead */
567 * look up a node with readahead called
572 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
574 /* congestion wait timeout value, default: 20ms */
575 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
577 /* maximum retry quota flush count */
578 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
580 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
582 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
584 /* dirty segments threshold for triggering CP */
585 #define DEFAULT_DIRTY_THRESHOLD 4
587 /* for in-memory extent cache entry */
588 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
590 /* number of extent info in extent cache we try to shrink */
591 #define EXTENT_CACHE_SHRINK_NUMBER 128
594 struct rb_node rb_node; /* rb node located in rb-tree */
597 unsigned int ofs; /* start offset of the entry */
598 unsigned int len; /* length of the entry */
600 unsigned long long key; /* 64-bits key */
605 unsigned int fofs; /* start offset in a file */
606 unsigned int len; /* length of the extent */
607 u32 blk; /* start block address of the extent */
608 #ifdef CONFIG_F2FS_FS_COMPRESSION
609 unsigned int c_len; /* physical extent length of compressed blocks */
614 struct rb_node rb_node; /* rb node located in rb-tree */
615 struct extent_info ei; /* extent info */
616 struct list_head list; /* node in global extent list of sbi */
617 struct extent_tree *et; /* extent tree pointer */
621 nid_t ino; /* inode number */
622 struct rb_root_cached root; /* root of extent info rb-tree */
623 struct extent_node *cached_en; /* recently accessed extent node */
624 struct extent_info largest; /* largested extent info */
625 struct list_head list; /* to be used by sbi->zombie_list */
626 rwlock_t lock; /* protect extent info rb-tree */
627 atomic_t node_cnt; /* # of extent node in rb-tree*/
628 bool largest_updated; /* largest extent updated */
632 * This structure is taken from ext4_map_blocks.
634 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
636 #define F2FS_MAP_NEW (1 << BH_New)
637 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
638 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
639 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
642 struct f2fs_map_blocks {
643 struct block_device *m_bdev; /* for multi-device dio */
647 unsigned int m_flags;
648 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
649 pgoff_t *m_next_extent; /* point to next possible extent */
651 bool m_may_create; /* indicate it is from write path */
652 bool m_multidev_dio; /* indicate it allows multi-device dio */
655 /* for flag in get_data_block */
657 F2FS_GET_BLOCK_DEFAULT,
658 F2FS_GET_BLOCK_FIEMAP,
661 F2FS_GET_BLOCK_PRE_DIO,
662 F2FS_GET_BLOCK_PRE_AIO,
663 F2FS_GET_BLOCK_PRECACHE,
667 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
669 #define FADVISE_COLD_BIT 0x01
670 #define FADVISE_LOST_PINO_BIT 0x02
671 #define FADVISE_ENCRYPT_BIT 0x04
672 #define FADVISE_ENC_NAME_BIT 0x08
673 #define FADVISE_KEEP_SIZE_BIT 0x10
674 #define FADVISE_HOT_BIT 0x20
675 #define FADVISE_VERITY_BIT 0x40
676 #define FADVISE_TRUNC_BIT 0x80
678 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
680 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
681 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
682 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
684 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
685 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
686 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
688 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
689 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
691 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
692 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
694 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
695 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
697 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
698 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
699 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
701 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
702 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
704 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
705 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
706 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
708 #define DEF_DIR_LEVEL 0
716 /* used for f2fs_inode_info->flags */
718 FI_NEW_INODE, /* indicate newly allocated inode */
719 FI_DIRTY_INODE, /* indicate inode is dirty or not */
720 FI_AUTO_RECOVER, /* indicate inode is recoverable */
721 FI_DIRTY_DIR, /* indicate directory has dirty pages */
722 FI_INC_LINK, /* need to increment i_nlink */
723 FI_ACL_MODE, /* indicate acl mode */
724 FI_NO_ALLOC, /* should not allocate any blocks */
725 FI_FREE_NID, /* free allocated nide */
726 FI_NO_EXTENT, /* not to use the extent cache */
727 FI_INLINE_XATTR, /* used for inline xattr */
728 FI_INLINE_DATA, /* used for inline data*/
729 FI_INLINE_DENTRY, /* used for inline dentry */
730 FI_APPEND_WRITE, /* inode has appended data */
731 FI_UPDATE_WRITE, /* inode has in-place-update data */
732 FI_NEED_IPU, /* used for ipu per file */
733 FI_ATOMIC_FILE, /* indicate atomic file */
734 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
735 FI_VOLATILE_FILE, /* indicate volatile file */
736 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
737 FI_DROP_CACHE, /* drop dirty page cache */
738 FI_DATA_EXIST, /* indicate data exists */
739 FI_INLINE_DOTS, /* indicate inline dot dentries */
740 FI_DO_DEFRAG, /* indicate defragment is running */
741 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
742 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
743 FI_HOT_DATA, /* indicate file is hot */
744 FI_EXTRA_ATTR, /* indicate file has extra attribute */
745 FI_PROJ_INHERIT, /* indicate file inherits projectid */
746 FI_PIN_FILE, /* indicate file should not be gced */
747 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
748 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
749 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
750 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
751 FI_MMAP_FILE, /* indicate file was mmapped */
752 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
753 FI_COMPRESS_RELEASED, /* compressed blocks were released */
754 FI_ALIGNED_WRITE, /* enable aligned write */
755 FI_MAX, /* max flag, never be used */
758 struct f2fs_inode_info {
759 struct inode vfs_inode; /* serve a vfs inode */
760 unsigned long i_flags; /* keep an inode flags for ioctl */
761 unsigned char i_advise; /* use to give file attribute hints */
762 unsigned char i_dir_level; /* use for dentry level for large dir */
763 unsigned int i_current_depth; /* only for directory depth */
764 /* for gc failure statistic */
765 unsigned int i_gc_failures[MAX_GC_FAILURE];
766 unsigned int i_pino; /* parent inode number */
767 umode_t i_acl_mode; /* keep file acl mode temporarily */
769 /* Use below internally in f2fs*/
770 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
771 struct f2fs_rwsem i_sem; /* protect fi info */
772 atomic_t dirty_pages; /* # of dirty pages */
773 f2fs_hash_t chash; /* hash value of given file name */
774 unsigned int clevel; /* maximum level of given file name */
775 struct task_struct *task; /* lookup and create consistency */
776 struct task_struct *cp_task; /* separate cp/wb IO stats*/
777 nid_t i_xattr_nid; /* node id that contains xattrs */
778 loff_t last_disk_size; /* lastly written file size */
779 spinlock_t i_size_lock; /* protect last_disk_size */
782 struct dquot *i_dquot[MAXQUOTAS];
784 /* quota space reservation, managed internally by quota code */
785 qsize_t i_reserved_quota;
787 struct list_head dirty_list; /* dirty list for dirs and files */
788 struct list_head gdirty_list; /* linked in global dirty list */
789 struct list_head inmem_ilist; /* list for inmem inodes */
790 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
791 struct task_struct *inmem_task; /* store inmemory task */
792 struct mutex inmem_lock; /* lock for inmemory pages */
793 struct extent_tree *extent_tree; /* cached extent_tree entry */
795 /* avoid racing between foreground op and gc */
796 struct f2fs_rwsem i_gc_rwsem[2];
797 struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
799 int i_extra_isize; /* size of extra space located in i_addr */
800 kprojid_t i_projid; /* id for project quota */
801 int i_inline_xattr_size; /* inline xattr size */
802 struct timespec64 i_crtime; /* inode creation time */
803 struct timespec64 i_disk_time[4];/* inode disk times */
805 /* for file compress */
806 atomic_t i_compr_blocks; /* # of compressed blocks */
807 unsigned char i_compress_algorithm; /* algorithm type */
808 unsigned char i_log_cluster_size; /* log of cluster size */
809 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
810 unsigned short i_compress_flag; /* compress flag */
811 unsigned int i_cluster_size; /* cluster size */
814 static inline void get_extent_info(struct extent_info *ext,
815 struct f2fs_extent *i_ext)
817 ext->fofs = le32_to_cpu(i_ext->fofs);
818 ext->blk = le32_to_cpu(i_ext->blk);
819 ext->len = le32_to_cpu(i_ext->len);
822 static inline void set_raw_extent(struct extent_info *ext,
823 struct f2fs_extent *i_ext)
825 i_ext->fofs = cpu_to_le32(ext->fofs);
826 i_ext->blk = cpu_to_le32(ext->blk);
827 i_ext->len = cpu_to_le32(ext->len);
830 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
831 u32 blk, unsigned int len)
836 #ifdef CONFIG_F2FS_FS_COMPRESSION
841 static inline bool __is_discard_mergeable(struct discard_info *back,
842 struct discard_info *front, unsigned int max_len)
844 return (back->lstart + back->len == front->lstart) &&
845 (back->len + front->len <= max_len);
848 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
849 struct discard_info *back, unsigned int max_len)
851 return __is_discard_mergeable(back, cur, max_len);
854 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
855 struct discard_info *front, unsigned int max_len)
857 return __is_discard_mergeable(cur, front, max_len);
860 static inline bool __is_extent_mergeable(struct extent_info *back,
861 struct extent_info *front)
863 #ifdef CONFIG_F2FS_FS_COMPRESSION
864 if (back->c_len && back->len != back->c_len)
866 if (front->c_len && front->len != front->c_len)
869 return (back->fofs + back->len == front->fofs &&
870 back->blk + back->len == front->blk);
873 static inline bool __is_back_mergeable(struct extent_info *cur,
874 struct extent_info *back)
876 return __is_extent_mergeable(back, cur);
879 static inline bool __is_front_mergeable(struct extent_info *cur,
880 struct extent_info *front)
882 return __is_extent_mergeable(cur, front);
885 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
886 static inline void __try_update_largest_extent(struct extent_tree *et,
887 struct extent_node *en)
889 if (en->ei.len > et->largest.len) {
890 et->largest = en->ei;
891 et->largest_updated = true;
896 * For free nid management
899 FREE_NID, /* newly added to free nid list */
900 PREALLOC_NID, /* it is preallocated */
911 struct f2fs_nm_info {
912 block_t nat_blkaddr; /* base disk address of NAT */
913 nid_t max_nid; /* maximum possible node ids */
914 nid_t available_nids; /* # of available node ids */
915 nid_t next_scan_nid; /* the next nid to be scanned */
916 unsigned int ram_thresh; /* control the memory footprint */
917 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
918 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
920 /* NAT cache management */
921 struct radix_tree_root nat_root;/* root of the nat entry cache */
922 struct radix_tree_root nat_set_root;/* root of the nat set cache */
923 struct f2fs_rwsem nat_tree_lock; /* protect nat entry tree */
924 struct list_head nat_entries; /* cached nat entry list (clean) */
925 spinlock_t nat_list_lock; /* protect clean nat entry list */
926 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
927 unsigned int nat_blocks; /* # of nat blocks */
929 /* free node ids management */
930 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
931 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
932 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
933 spinlock_t nid_list_lock; /* protect nid lists ops */
934 struct mutex build_lock; /* lock for build free nids */
935 unsigned char **free_nid_bitmap;
936 unsigned char *nat_block_bitmap;
937 unsigned short *free_nid_count; /* free nid count of NAT block */
940 char *nat_bitmap; /* NAT bitmap pointer */
942 unsigned int nat_bits_blocks; /* # of nat bits blocks */
943 unsigned char *nat_bits; /* NAT bits blocks */
944 unsigned char *full_nat_bits; /* full NAT pages */
945 unsigned char *empty_nat_bits; /* empty NAT pages */
946 #ifdef CONFIG_F2FS_CHECK_FS
947 char *nat_bitmap_mir; /* NAT bitmap mirror */
949 int bitmap_size; /* bitmap size */
953 * this structure is used as one of function parameters.
954 * all the information are dedicated to a given direct node block determined
955 * by the data offset in a file.
957 struct dnode_of_data {
958 struct inode *inode; /* vfs inode pointer */
959 struct page *inode_page; /* its inode page, NULL is possible */
960 struct page *node_page; /* cached direct node page */
961 nid_t nid; /* node id of the direct node block */
962 unsigned int ofs_in_node; /* data offset in the node page */
963 bool inode_page_locked; /* inode page is locked or not */
964 bool node_changed; /* is node block changed */
965 char cur_level; /* level of hole node page */
966 char max_level; /* level of current page located */
967 block_t data_blkaddr; /* block address of the node block */
970 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
971 struct page *ipage, struct page *npage, nid_t nid)
973 memset(dn, 0, sizeof(*dn));
975 dn->inode_page = ipage;
976 dn->node_page = npage;
983 * By default, there are 6 active log areas across the whole main area.
984 * When considering hot and cold data separation to reduce cleaning overhead,
985 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
987 * In the current design, you should not change the numbers intentionally.
988 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
989 * logs individually according to the underlying devices. (default: 6)
990 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
991 * data and 8 for node logs.
993 #define NR_CURSEG_DATA_TYPE (3)
994 #define NR_CURSEG_NODE_TYPE (3)
995 #define NR_CURSEG_INMEM_TYPE (2)
996 #define NR_CURSEG_RO_TYPE (2)
997 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
998 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
1001 CURSEG_HOT_DATA = 0, /* directory entry blocks */
1002 CURSEG_WARM_DATA, /* data blocks */
1003 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
1004 CURSEG_HOT_NODE, /* direct node blocks of directory files */
1005 CURSEG_WARM_NODE, /* direct node blocks of normal files */
1006 CURSEG_COLD_NODE, /* indirect node blocks */
1007 NR_PERSISTENT_LOG, /* number of persistent log */
1008 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
1009 /* pinned file that needs consecutive block address */
1010 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
1011 NO_CHECK_TYPE, /* number of persistent & inmem log */
1015 struct completion wait;
1016 struct llist_node llnode;
1021 struct flush_cmd_control {
1022 struct task_struct *f2fs_issue_flush; /* flush thread */
1023 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1024 atomic_t issued_flush; /* # of issued flushes */
1025 atomic_t queued_flush; /* # of queued flushes */
1026 struct llist_head issue_list; /* list for command issue */
1027 struct llist_node *dispatch_list; /* list for command dispatch */
1030 struct f2fs_sm_info {
1031 struct sit_info *sit_info; /* whole segment information */
1032 struct free_segmap_info *free_info; /* free segment information */
1033 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1034 struct curseg_info *curseg_array; /* active segment information */
1036 struct f2fs_rwsem curseg_lock; /* for preventing curseg change */
1038 block_t seg0_blkaddr; /* block address of 0'th segment */
1039 block_t main_blkaddr; /* start block address of main area */
1040 block_t ssa_blkaddr; /* start block address of SSA area */
1042 unsigned int segment_count; /* total # of segments */
1043 unsigned int main_segments; /* # of segments in main area */
1044 unsigned int reserved_segments; /* # of reserved segments */
1045 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1046 unsigned int ovp_segments; /* # of overprovision segments */
1048 /* a threshold to reclaim prefree segments */
1049 unsigned int rec_prefree_segments;
1051 /* for batched trimming */
1052 unsigned int trim_sections; /* # of sections to trim */
1054 struct list_head sit_entry_set; /* sit entry set list */
1056 unsigned int ipu_policy; /* in-place-update policy */
1057 unsigned int min_ipu_util; /* in-place-update threshold */
1058 unsigned int min_fsync_blocks; /* threshold for fsync */
1059 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1060 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1061 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1063 /* for flush command control */
1064 struct flush_cmd_control *fcc_info;
1066 /* for discard command control */
1067 struct discard_cmd_control *dcc_info;
1074 * COUNT_TYPE for monitoring
1076 * f2fs monitors the number of several block types such as on-writeback,
1077 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1079 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1099 * The below are the page types of bios used in submit_bio().
1100 * The available types are:
1101 * DATA User data pages. It operates as async mode.
1102 * NODE Node pages. It operates as async mode.
1103 * META FS metadata pages such as SIT, NAT, CP.
1104 * NR_PAGE_TYPE The number of page types.
1105 * META_FLUSH Make sure the previous pages are written
1106 * with waiting the bio's completion
1107 * ... Only can be used with META.
1109 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1116 INMEM, /* the below types are used by tracepoints only. */
1125 HOT = 0, /* must be zero for meta bio */
1131 enum need_lock_type {
1137 enum cp_reason_type {
1153 APP_DIRECT_IO, /* app direct write IOs */
1154 APP_BUFFERED_IO, /* app buffered write IOs */
1155 APP_WRITE_IO, /* app write IOs */
1156 APP_MAPPED_IO, /* app mapped IOs */
1157 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1158 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1159 FS_META_IO, /* meta IOs from kworker/reclaimer */
1160 FS_GC_DATA_IO, /* data IOs from forground gc */
1161 FS_GC_NODE_IO, /* node IOs from forground gc */
1162 FS_CP_DATA_IO, /* data IOs from checkpoint */
1163 FS_CP_NODE_IO, /* node IOs from checkpoint */
1164 FS_CP_META_IO, /* meta IOs from checkpoint */
1167 APP_DIRECT_READ_IO, /* app direct read IOs */
1168 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1169 APP_READ_IO, /* app read IOs */
1170 APP_MAPPED_READ_IO, /* app mapped read IOs */
1171 FS_DATA_READ_IO, /* data read IOs */
1172 FS_GDATA_READ_IO, /* data read IOs from background gc */
1173 FS_CDATA_READ_IO, /* compressed data read IOs */
1174 FS_NODE_READ_IO, /* node read IOs */
1175 FS_META_READ_IO, /* meta read IOs */
1178 FS_DISCARD, /* discard */
1182 struct f2fs_io_info {
1183 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1184 nid_t ino; /* inode number */
1185 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1186 enum temp_type temp; /* contains HOT/WARM/COLD */
1187 int op; /* contains REQ_OP_ */
1188 int op_flags; /* req_flag_bits */
1189 block_t new_blkaddr; /* new block address to be written */
1190 block_t old_blkaddr; /* old block address before Cow */
1191 struct page *page; /* page to be written */
1192 struct page *encrypted_page; /* encrypted page */
1193 struct page *compressed_page; /* compressed page */
1194 struct list_head list; /* serialize IOs */
1195 bool submitted; /* indicate IO submission */
1196 int need_lock; /* indicate we need to lock cp_rwsem */
1197 bool in_list; /* indicate fio is in io_list */
1198 bool is_por; /* indicate IO is from recovery or not */
1199 bool retry; /* need to reallocate block address */
1200 int compr_blocks; /* # of compressed block addresses */
1201 bool encrypted; /* indicate file is encrypted */
1202 enum iostat_type io_type; /* io type */
1203 struct writeback_control *io_wbc; /* writeback control */
1204 struct bio **bio; /* bio for ipu */
1205 sector_t *last_block; /* last block number in bio */
1206 unsigned char version; /* version of the node */
1211 struct list_head list;
1214 #define is_read_io(rw) ((rw) == READ)
1215 struct f2fs_bio_info {
1216 struct f2fs_sb_info *sbi; /* f2fs superblock */
1217 struct bio *bio; /* bios to merge */
1218 sector_t last_block_in_bio; /* last block number */
1219 struct f2fs_io_info fio; /* store buffered io info. */
1220 struct f2fs_rwsem io_rwsem; /* blocking op for bio */
1221 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1222 struct list_head io_list; /* track fios */
1223 struct list_head bio_list; /* bio entry list head */
1224 struct f2fs_rwsem bio_list_lock; /* lock to protect bio entry list */
1227 #define FDEV(i) (sbi->devs[i])
1228 #define RDEV(i) (raw_super->devs[i])
1229 struct f2fs_dev_info {
1230 struct block_device *bdev;
1231 char path[MAX_PATH_LEN];
1232 unsigned int total_segments;
1235 #ifdef CONFIG_BLK_DEV_ZONED
1236 unsigned int nr_blkz; /* Total number of zones */
1237 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1238 block_t *zone_capacity_blocks; /* Array of zone capacity in blks */
1243 DIR_INODE, /* for dirty dir inode */
1244 FILE_INODE, /* for dirty regular/symlink inode */
1245 DIRTY_META, /* for all dirtied inode metadata */
1246 ATOMIC_FILE, /* for all atomic files */
1250 /* for inner inode cache management */
1251 struct inode_management {
1252 struct radix_tree_root ino_root; /* ino entry array */
1253 spinlock_t ino_lock; /* for ino entry lock */
1254 struct list_head ino_list; /* inode list head */
1255 unsigned long ino_num; /* number of entries */
1259 struct atgc_management {
1260 bool atgc_enabled; /* ATGC is enabled or not */
1261 struct rb_root_cached root; /* root of victim rb-tree */
1262 struct list_head victim_list; /* linked with all victim entries */
1263 unsigned int victim_count; /* victim count in rb-tree */
1264 unsigned int candidate_ratio; /* candidate ratio */
1265 unsigned int max_candidate_count; /* max candidate count */
1266 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1267 unsigned long long age_threshold; /* age threshold */
1270 /* For s_flag in struct f2fs_sb_info */
1272 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1273 SBI_IS_CLOSE, /* specify unmounting */
1274 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1275 SBI_POR_DOING, /* recovery is doing or not */
1276 SBI_NEED_SB_WRITE, /* need to recover superblock */
1277 SBI_NEED_CP, /* need to checkpoint */
1278 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1279 SBI_IS_RECOVERED, /* recovered orphan/data */
1280 SBI_CP_DISABLED, /* CP was disabled last mount */
1281 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1282 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1283 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1284 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1285 SBI_IS_RESIZEFS, /* resizefs is in process */
1294 UMOUNT_DISCARD_TIMEOUT,
1309 BGGC_MODE_ON, /* background gc is on */
1310 BGGC_MODE_OFF, /* background gc is off */
1312 * background gc is on, migrating blocks
1313 * like foreground gc
1318 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1319 FS_MODE_LFS, /* use lfs allocation only */
1320 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1321 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1325 WHINT_MODE_OFF, /* not pass down write hints */
1326 WHINT_MODE_USER, /* try to pass down hints given by users */
1327 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1331 ALLOC_MODE_DEFAULT, /* stay default */
1332 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1336 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1337 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1338 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1343 * automatically compress compression
1347 * automatical compression is disabled.
1348 * user can control the file compression
1354 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1355 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1356 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1359 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1360 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1361 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1364 * Layout of f2fs page.private:
1366 * Layout A: lowest bit should be 1
1367 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1368 * bit 0 PAGE_PRIVATE_NOT_POINTER
1369 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1370 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1371 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1372 * bit 4 PAGE_PRIVATE_INLINE_INODE
1373 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1374 * bit 6- f2fs private data
1376 * Layout B: lowest bit should be 0
1377 * page.private is a wrapped pointer.
1380 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1381 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1382 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1383 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1384 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1385 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1389 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1390 static inline bool page_private_##name(struct page *page) \
1392 return PagePrivate(page) && \
1393 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1394 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1397 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1398 static inline void set_page_private_##name(struct page *page) \
1400 if (!PagePrivate(page)) { \
1402 SetPagePrivate(page); \
1403 set_page_private(page, 0); \
1405 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1406 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1409 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1410 static inline void clear_page_private_##name(struct page *page) \
1412 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1413 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1414 set_page_private(page, 0); \
1415 if (PagePrivate(page)) { \
1416 ClearPagePrivate(page); \
1422 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1423 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1424 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1425 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1426 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1427 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1429 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1430 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1431 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1432 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1433 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1435 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1436 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1437 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1438 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1439 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1441 static inline unsigned long get_page_private_data(struct page *page)
1443 unsigned long data = page_private(page);
1445 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1447 return data >> PAGE_PRIVATE_MAX;
1450 static inline void set_page_private_data(struct page *page, unsigned long data)
1452 if (!PagePrivate(page)) {
1454 SetPagePrivate(page);
1455 set_page_private(page, 0);
1457 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1458 page_private(page) |= data << PAGE_PRIVATE_MAX;
1461 static inline void clear_page_private_data(struct page *page)
1463 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1464 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1465 set_page_private(page, 0);
1466 if (PagePrivate(page)) {
1467 ClearPagePrivate(page);
1473 /* For compression */
1474 enum compress_algorithm_type {
1482 enum compress_flag {
1487 #define COMPRESS_WATERMARK 20
1488 #define COMPRESS_PERCENT 20
1490 #define COMPRESS_DATA_RESERVED_SIZE 4
1491 struct compress_data {
1492 __le32 clen; /* compressed data size */
1493 __le32 chksum; /* compressed data chksum */
1494 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1495 u8 cdata[]; /* compressed data */
1498 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1500 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1502 #define COMPRESS_LEVEL_OFFSET 8
1504 /* compress context */
1505 struct compress_ctx {
1506 struct inode *inode; /* inode the context belong to */
1507 pgoff_t cluster_idx; /* cluster index number */
1508 unsigned int cluster_size; /* page count in cluster */
1509 unsigned int log_cluster_size; /* log of cluster size */
1510 struct page **rpages; /* pages store raw data in cluster */
1511 unsigned int nr_rpages; /* total page number in rpages */
1512 struct page **cpages; /* pages store compressed data in cluster */
1513 unsigned int nr_cpages; /* total page number in cpages */
1514 unsigned int valid_nr_cpages; /* valid page number in cpages */
1515 void *rbuf; /* virtual mapped address on rpages */
1516 struct compress_data *cbuf; /* virtual mapped address on cpages */
1517 size_t rlen; /* valid data length in rbuf */
1518 size_t clen; /* valid data length in cbuf */
1519 void *private; /* payload buffer for specified compression algorithm */
1520 void *private2; /* extra payload buffer */
1523 /* compress context for write IO path */
1524 struct compress_io_ctx {
1525 u32 magic; /* magic number to indicate page is compressed */
1526 struct inode *inode; /* inode the context belong to */
1527 struct page **rpages; /* pages store raw data in cluster */
1528 unsigned int nr_rpages; /* total page number in rpages */
1529 atomic_t pending_pages; /* in-flight compressed page count */
1532 /* Context for decompressing one cluster on the read IO path */
1533 struct decompress_io_ctx {
1534 u32 magic; /* magic number to indicate page is compressed */
1535 struct inode *inode; /* inode the context belong to */
1536 pgoff_t cluster_idx; /* cluster index number */
1537 unsigned int cluster_size; /* page count in cluster */
1538 unsigned int log_cluster_size; /* log of cluster size */
1539 struct page **rpages; /* pages store raw data in cluster */
1540 unsigned int nr_rpages; /* total page number in rpages */
1541 struct page **cpages; /* pages store compressed data in cluster */
1542 unsigned int nr_cpages; /* total page number in cpages */
1543 struct page **tpages; /* temp pages to pad holes in cluster */
1544 void *rbuf; /* virtual mapped address on rpages */
1545 struct compress_data *cbuf; /* virtual mapped address on cpages */
1546 size_t rlen; /* valid data length in rbuf */
1547 size_t clen; /* valid data length in cbuf */
1550 * The number of compressed pages remaining to be read in this cluster.
1551 * This is initially nr_cpages. It is decremented by 1 each time a page
1552 * has been read (or failed to be read). When it reaches 0, the cluster
1553 * is decompressed (or an error is reported).
1555 * If an error occurs before all the pages have been submitted for I/O,
1556 * then this will never reach 0. In this case the I/O submitter is
1557 * responsible for calling f2fs_decompress_end_io() instead.
1559 atomic_t remaining_pages;
1562 * Number of references to this decompress_io_ctx.
1564 * One reference is held for I/O completion. This reference is dropped
1565 * after the pagecache pages are updated and unlocked -- either after
1566 * decompression (and verity if enabled), or after an error.
1568 * In addition, each compressed page holds a reference while it is in a
1569 * bio. These references are necessary prevent compressed pages from
1570 * being freed while they are still in a bio.
1574 bool failed; /* IO error occurred before decompression? */
1575 bool need_verity; /* need fs-verity verification after decompression? */
1576 void *private; /* payload buffer for specified decompression algorithm */
1577 void *private2; /* extra payload buffer */
1578 struct work_struct verity_work; /* work to verify the decompressed pages */
1581 #define NULL_CLUSTER ((unsigned int)(~0))
1582 #define MIN_COMPRESS_LOG_SIZE 2
1583 #define MAX_COMPRESS_LOG_SIZE 8
1584 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1586 struct f2fs_sb_info {
1587 struct super_block *sb; /* pointer to VFS super block */
1588 struct proc_dir_entry *s_proc; /* proc entry */
1589 struct f2fs_super_block *raw_super; /* raw super block pointer */
1590 struct f2fs_rwsem sb_lock; /* lock for raw super block */
1591 int valid_super_block; /* valid super block no */
1592 unsigned long s_flag; /* flags for sbi */
1593 struct mutex writepages; /* mutex for writepages() */
1595 #ifdef CONFIG_BLK_DEV_ZONED
1596 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1597 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1600 /* for node-related operations */
1601 struct f2fs_nm_info *nm_info; /* node manager */
1602 struct inode *node_inode; /* cache node blocks */
1604 /* for segment-related operations */
1605 struct f2fs_sm_info *sm_info; /* segment manager */
1607 /* for bio operations */
1608 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1609 /* keep migration IO order for LFS mode */
1610 struct f2fs_rwsem io_order_lock;
1611 mempool_t *write_io_dummy; /* Dummy pages */
1613 /* for checkpoint */
1614 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1615 int cur_cp_pack; /* remain current cp pack */
1616 spinlock_t cp_lock; /* for flag in ckpt */
1617 struct inode *meta_inode; /* cache meta blocks */
1618 struct f2fs_rwsem cp_global_sem; /* checkpoint procedure lock */
1619 struct f2fs_rwsem cp_rwsem; /* blocking FS operations */
1620 struct f2fs_rwsem node_write; /* locking node writes */
1621 struct f2fs_rwsem node_change; /* locking node change */
1622 wait_queue_head_t cp_wait;
1623 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1624 long interval_time[MAX_TIME]; /* to store thresholds */
1625 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1627 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1629 spinlock_t fsync_node_lock; /* for node entry lock */
1630 struct list_head fsync_node_list; /* node list head */
1631 unsigned int fsync_seg_id; /* sequence id */
1632 unsigned int fsync_node_num; /* number of node entries */
1634 /* for orphan inode, use 0'th array */
1635 unsigned int max_orphans; /* max orphan inodes */
1637 /* for inode management */
1638 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1639 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1640 struct mutex flush_lock; /* for flush exclusion */
1642 /* for extent tree cache */
1643 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1644 struct mutex extent_tree_lock; /* locking extent radix tree */
1645 struct list_head extent_list; /* lru list for shrinker */
1646 spinlock_t extent_lock; /* locking extent lru list */
1647 atomic_t total_ext_tree; /* extent tree count */
1648 struct list_head zombie_list; /* extent zombie tree list */
1649 atomic_t total_zombie_tree; /* extent zombie tree count */
1650 atomic_t total_ext_node; /* extent info count */
1652 /* basic filesystem units */
1653 unsigned int log_sectors_per_block; /* log2 sectors per block */
1654 unsigned int log_blocksize; /* log2 block size */
1655 unsigned int blocksize; /* block size */
1656 unsigned int root_ino_num; /* root inode number*/
1657 unsigned int node_ino_num; /* node inode number*/
1658 unsigned int meta_ino_num; /* meta inode number*/
1659 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1660 unsigned int blocks_per_seg; /* blocks per segment */
1661 unsigned int segs_per_sec; /* segments per section */
1662 unsigned int secs_per_zone; /* sections per zone */
1663 unsigned int total_sections; /* total section count */
1664 unsigned int total_node_count; /* total node block count */
1665 unsigned int total_valid_node_count; /* valid node block count */
1666 int dir_level; /* directory level */
1667 int readdir_ra; /* readahead inode in readdir */
1668 u64 max_io_bytes; /* max io bytes to merge IOs */
1670 block_t user_block_count; /* # of user blocks */
1671 block_t total_valid_block_count; /* # of valid blocks */
1672 block_t discard_blks; /* discard command candidats */
1673 block_t last_valid_block_count; /* for recovery */
1674 block_t reserved_blocks; /* configurable reserved blocks */
1675 block_t current_reserved_blocks; /* current reserved blocks */
1677 /* Additional tracking for no checkpoint mode */
1678 block_t unusable_block_count; /* # of blocks saved by last cp */
1680 unsigned int nquota_files; /* # of quota sysfile */
1681 struct f2fs_rwsem quota_sem; /* blocking cp for flags */
1683 /* # of pages, see count_type */
1684 atomic_t nr_pages[NR_COUNT_TYPE];
1685 /* # of allocated blocks */
1686 struct percpu_counter alloc_valid_block_count;
1688 /* writeback control */
1689 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1691 /* valid inode count */
1692 struct percpu_counter total_valid_inode_count;
1694 struct f2fs_mount_info mount_opt; /* mount options */
1696 /* for cleaning operations */
1697 struct f2fs_rwsem gc_lock; /*
1698 * semaphore for GC, avoid
1699 * race between GC and GC or CP
1701 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1702 struct atgc_management am; /* atgc management */
1703 unsigned int cur_victim_sec; /* current victim section num */
1704 unsigned int gc_mode; /* current GC state */
1705 unsigned int next_victim_seg[2]; /* next segment in victim section */
1706 spinlock_t gc_urgent_high_lock;
1707 bool gc_urgent_high_limited; /* indicates having limited trial count */
1708 unsigned int gc_urgent_high_remaining; /* remaining trial count for GC_URGENT_HIGH */
1710 /* for skip statistic */
1711 unsigned int atomic_files; /* # of opened atomic file */
1712 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1713 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1715 /* threshold for gc trials on pinned files */
1716 u64 gc_pin_file_threshold;
1717 struct f2fs_rwsem pin_sem;
1719 /* maximum # of trials to find a victim segment for SSR and GC */
1720 unsigned int max_victim_search;
1721 /* migration granularity of garbage collection, unit: segment */
1722 unsigned int migration_granularity;
1725 * for stat information.
1726 * one is for the LFS mode, and the other is for the SSR mode.
1728 #ifdef CONFIG_F2FS_STAT_FS
1729 struct f2fs_stat_info *stat_info; /* FS status information */
1730 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1731 unsigned int segment_count[2]; /* # of allocated segments */
1732 unsigned int block_count[2]; /* # of allocated blocks */
1733 atomic_t inplace_count; /* # of inplace update */
1734 atomic64_t total_hit_ext; /* # of lookup extent cache */
1735 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1736 atomic64_t read_hit_largest; /* # of hit largest extent node */
1737 atomic64_t read_hit_cached; /* # of hit cached extent node */
1738 atomic_t inline_xattr; /* # of inline_xattr inodes */
1739 atomic_t inline_inode; /* # of inline_data inodes */
1740 atomic_t inline_dir; /* # of inline_dentry inodes */
1741 atomic_t compr_inode; /* # of compressed inodes */
1742 atomic64_t compr_blocks; /* # of compressed blocks */
1743 atomic_t vw_cnt; /* # of volatile writes */
1744 atomic_t max_aw_cnt; /* max # of atomic writes */
1745 atomic_t max_vw_cnt; /* max # of volatile writes */
1746 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1747 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1748 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1750 spinlock_t stat_lock; /* lock for stat operations */
1752 /* to attach REQ_META|REQ_FUA flags */
1753 unsigned int data_io_flag;
1754 unsigned int node_io_flag;
1756 /* For sysfs suppport */
1757 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1758 struct completion s_kobj_unregister;
1760 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1761 struct completion s_stat_kobj_unregister;
1763 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1764 struct completion s_feature_list_kobj_unregister;
1766 /* For shrinker support */
1767 struct list_head s_list;
1768 struct mutex umount_mutex;
1769 unsigned int shrinker_run_no;
1771 /* For multi devices */
1772 int s_ndevs; /* number of devices */
1773 struct f2fs_dev_info *devs; /* for device list */
1774 unsigned int dirty_device; /* for checkpoint data flush */
1775 spinlock_t dev_lock; /* protect dirty_device */
1776 bool aligned_blksize; /* all devices has the same logical blksize */
1778 /* For write statistics */
1779 u64 sectors_written_start;
1782 /* Reference to checksum algorithm driver via cryptoapi */
1783 struct crypto_shash *s_chksum_driver;
1785 /* Precomputed FS UUID checksum for seeding other checksums */
1786 __u32 s_chksum_seed;
1788 struct workqueue_struct *post_read_wq; /* post read workqueue */
1790 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1791 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1793 /* For reclaimed segs statistics per each GC mode */
1794 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1795 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1797 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1799 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1800 int max_fragment_hole; /* max hole size for block fragmentation mode */
1802 #ifdef CONFIG_F2FS_FS_COMPRESSION
1803 struct kmem_cache *page_array_slab; /* page array entry */
1804 unsigned int page_array_slab_size; /* default page array slab size */
1806 /* For runtime compression statistics */
1807 u64 compr_written_block;
1808 u64 compr_saved_block;
1809 u32 compr_new_inode;
1811 /* For compressed block cache */
1812 struct inode *compress_inode; /* cache compressed blocks */
1813 unsigned int compress_percent; /* cache page percentage */
1814 unsigned int compress_watermark; /* cache page watermark */
1815 atomic_t compress_page_hit; /* cache hit count */
1818 #ifdef CONFIG_F2FS_IOSTAT
1819 /* For app/fs IO statistics */
1820 spinlock_t iostat_lock;
1821 unsigned long long rw_iostat[NR_IO_TYPE];
1822 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1824 unsigned long iostat_next_period;
1825 unsigned int iostat_period_ms;
1827 /* For io latency related statistics info in one iostat period */
1828 spinlock_t iostat_lat_lock;
1829 struct iostat_lat_info *iostat_io_lat;
1833 #ifdef CONFIG_F2FS_FAULT_INJECTION
1834 #define f2fs_show_injection_info(sbi, type) \
1835 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1836 KERN_INFO, sbi->sb->s_id, \
1837 f2fs_fault_name[type], \
1838 __func__, __builtin_return_address(0))
1839 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1841 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1843 if (!ffi->inject_rate)
1846 if (!IS_FAULT_SET(ffi, type))
1849 atomic_inc(&ffi->inject_ops);
1850 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1851 atomic_set(&ffi->inject_ops, 0);
1857 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1858 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1865 * Test if the mounted volume is a multi-device volume.
1866 * - For a single regular disk volume, sbi->s_ndevs is 0.
1867 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1868 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1870 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1872 return sbi->s_ndevs > 1;
1875 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1877 unsigned long now = jiffies;
1879 sbi->last_time[type] = now;
1881 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1882 if (type == REQ_TIME) {
1883 sbi->last_time[DISCARD_TIME] = now;
1884 sbi->last_time[GC_TIME] = now;
1888 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1890 unsigned long interval = sbi->interval_time[type] * HZ;
1892 return time_after(jiffies, sbi->last_time[type] + interval);
1895 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1898 unsigned long interval = sbi->interval_time[type] * HZ;
1899 unsigned int wait_ms = 0;
1902 delta = (sbi->last_time[type] + interval) - jiffies;
1904 wait_ms = jiffies_to_msecs(delta);
1912 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1913 const void *address, unsigned int length)
1916 struct shash_desc shash;
1921 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1923 desc.shash.tfm = sbi->s_chksum_driver;
1924 *(u32 *)desc.ctx = crc;
1926 err = crypto_shash_update(&desc.shash, address, length);
1929 return *(u32 *)desc.ctx;
1932 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1933 unsigned int length)
1935 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1938 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1939 void *buf, size_t buf_size)
1941 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1944 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1945 const void *address, unsigned int length)
1947 return __f2fs_crc32(sbi, crc, address, length);
1950 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1952 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1955 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1957 return sb->s_fs_info;
1960 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1962 return F2FS_SB(inode->i_sb);
1965 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1967 return F2FS_I_SB(mapping->host);
1970 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1972 return F2FS_M_SB(page_file_mapping(page));
1975 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1977 return (struct f2fs_super_block *)(sbi->raw_super);
1980 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1982 return (struct f2fs_checkpoint *)(sbi->ckpt);
1985 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1987 return (struct f2fs_node *)page_address(page);
1990 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1992 return &((struct f2fs_node *)page_address(page))->i;
1995 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1997 return (struct f2fs_nm_info *)(sbi->nm_info);
2000 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
2002 return (struct f2fs_sm_info *)(sbi->sm_info);
2005 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
2007 return (struct sit_info *)(SM_I(sbi)->sit_info);
2010 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
2012 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
2015 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
2017 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
2020 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
2022 return sbi->meta_inode->i_mapping;
2025 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2027 return sbi->node_inode->i_mapping;
2030 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2032 return test_bit(type, &sbi->s_flag);
2035 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2037 set_bit(type, &sbi->s_flag);
2040 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2042 clear_bit(type, &sbi->s_flag);
2045 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2047 return le64_to_cpu(cp->checkpoint_ver);
2050 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2052 if (type < F2FS_MAX_QUOTAS)
2053 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2057 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2059 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2060 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2063 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2065 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2067 return ckpt_flags & f;
2070 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2072 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2075 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2077 unsigned int ckpt_flags;
2079 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2081 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2084 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2086 unsigned long flags;
2088 spin_lock_irqsave(&sbi->cp_lock, flags);
2089 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2090 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2093 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2095 unsigned int ckpt_flags;
2097 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2099 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2102 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2104 unsigned long flags;
2106 spin_lock_irqsave(&sbi->cp_lock, flags);
2107 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2108 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2111 static inline void init_f2fs_rwsem(struct f2fs_rwsem *sem)
2113 init_rwsem(&sem->internal_rwsem);
2114 init_waitqueue_head(&sem->read_waiters);
2117 static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
2119 return rwsem_is_locked(&sem->internal_rwsem);
2122 static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
2124 return rwsem_is_contended(&sem->internal_rwsem);
2127 static inline void f2fs_down_read(struct f2fs_rwsem *sem)
2129 wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
2132 static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
2134 return down_read_trylock(&sem->internal_rwsem);
2137 #ifdef CONFIG_DEBUG_LOCK_ALLOC
2138 static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
2140 down_read_nested(&sem->internal_rwsem, subclass);
2143 #define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
2146 static inline void f2fs_up_read(struct f2fs_rwsem *sem)
2148 up_read(&sem->internal_rwsem);
2151 static inline void f2fs_down_write(struct f2fs_rwsem *sem)
2153 down_write(&sem->internal_rwsem);
2156 static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
2158 return down_write_trylock(&sem->internal_rwsem);
2161 static inline void f2fs_up_write(struct f2fs_rwsem *sem)
2163 up_write(&sem->internal_rwsem);
2164 wake_up_all(&sem->read_waiters);
2167 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2169 f2fs_down_read(&sbi->cp_rwsem);
2172 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2174 if (time_to_inject(sbi, FAULT_LOCK_OP)) {
2175 f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
2178 return f2fs_down_read_trylock(&sbi->cp_rwsem);
2181 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2183 f2fs_up_read(&sbi->cp_rwsem);
2186 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2188 f2fs_down_write(&sbi->cp_rwsem);
2191 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2193 f2fs_up_write(&sbi->cp_rwsem);
2196 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2198 int reason = CP_SYNC;
2200 if (test_opt(sbi, FASTBOOT))
2201 reason = CP_FASTBOOT;
2202 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2207 static inline bool __remain_node_summaries(int reason)
2209 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2212 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2214 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2215 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2219 * Check whether the inode has blocks or not
2221 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2223 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2225 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2228 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2230 return ofs == XATTR_NODE_OFFSET;
2233 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2234 struct inode *inode, bool cap)
2238 if (!test_opt(sbi, RESERVE_ROOT))
2240 if (IS_NOQUOTA(inode))
2242 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2244 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2245 in_group_p(F2FS_OPTION(sbi).s_resgid))
2247 if (cap && capable(CAP_SYS_RESOURCE))
2252 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2253 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2254 struct inode *inode, blkcnt_t *count)
2256 blkcnt_t diff = 0, release = 0;
2257 block_t avail_user_block_count;
2260 ret = dquot_reserve_block(inode, *count);
2264 if (time_to_inject(sbi, FAULT_BLOCK)) {
2265 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2271 * let's increase this in prior to actual block count change in order
2272 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2274 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2276 spin_lock(&sbi->stat_lock);
2277 sbi->total_valid_block_count += (block_t)(*count);
2278 avail_user_block_count = sbi->user_block_count -
2279 sbi->current_reserved_blocks;
2281 if (!__allow_reserved_blocks(sbi, inode, true))
2282 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2284 if (F2FS_IO_ALIGNED(sbi))
2285 avail_user_block_count -= sbi->blocks_per_seg *
2286 SM_I(sbi)->additional_reserved_segments;
2288 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2289 if (avail_user_block_count > sbi->unusable_block_count)
2290 avail_user_block_count -= sbi->unusable_block_count;
2292 avail_user_block_count = 0;
2294 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2295 diff = sbi->total_valid_block_count - avail_user_block_count;
2300 sbi->total_valid_block_count -= diff;
2302 spin_unlock(&sbi->stat_lock);
2306 spin_unlock(&sbi->stat_lock);
2308 if (unlikely(release)) {
2309 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2310 dquot_release_reservation_block(inode, release);
2312 f2fs_i_blocks_write(inode, *count, true, true);
2316 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2318 dquot_release_reservation_block(inode, release);
2323 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2325 #define f2fs_err(sbi, fmt, ...) \
2326 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2327 #define f2fs_warn(sbi, fmt, ...) \
2328 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2329 #define f2fs_notice(sbi, fmt, ...) \
2330 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2331 #define f2fs_info(sbi, fmt, ...) \
2332 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2333 #define f2fs_debug(sbi, fmt, ...) \
2334 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2336 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2337 struct inode *inode,
2340 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2342 spin_lock(&sbi->stat_lock);
2343 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2344 sbi->total_valid_block_count -= (block_t)count;
2345 if (sbi->reserved_blocks &&
2346 sbi->current_reserved_blocks < sbi->reserved_blocks)
2347 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2348 sbi->current_reserved_blocks + count);
2349 spin_unlock(&sbi->stat_lock);
2350 if (unlikely(inode->i_blocks < sectors)) {
2351 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2353 (unsigned long long)inode->i_blocks,
2354 (unsigned long long)sectors);
2355 set_sbi_flag(sbi, SBI_NEED_FSCK);
2358 f2fs_i_blocks_write(inode, count, false, true);
2361 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2363 atomic_inc(&sbi->nr_pages[count_type]);
2365 if (count_type == F2FS_DIRTY_DENTS ||
2366 count_type == F2FS_DIRTY_NODES ||
2367 count_type == F2FS_DIRTY_META ||
2368 count_type == F2FS_DIRTY_QDATA ||
2369 count_type == F2FS_DIRTY_IMETA)
2370 set_sbi_flag(sbi, SBI_IS_DIRTY);
2373 static inline void inode_inc_dirty_pages(struct inode *inode)
2375 atomic_inc(&F2FS_I(inode)->dirty_pages);
2376 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2377 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2378 if (IS_NOQUOTA(inode))
2379 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2382 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2384 atomic_dec(&sbi->nr_pages[count_type]);
2387 static inline void inode_dec_dirty_pages(struct inode *inode)
2389 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2390 !S_ISLNK(inode->i_mode))
2393 atomic_dec(&F2FS_I(inode)->dirty_pages);
2394 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2395 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2396 if (IS_NOQUOTA(inode))
2397 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2400 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2402 return atomic_read(&sbi->nr_pages[count_type]);
2405 static inline int get_dirty_pages(struct inode *inode)
2407 return atomic_read(&F2FS_I(inode)->dirty_pages);
2410 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2412 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2413 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2414 sbi->log_blocks_per_seg;
2416 return segs / sbi->segs_per_sec;
2419 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2421 return sbi->total_valid_block_count;
2424 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2426 return sbi->discard_blks;
2429 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2431 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2433 /* return NAT or SIT bitmap */
2434 if (flag == NAT_BITMAP)
2435 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2436 else if (flag == SIT_BITMAP)
2437 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2442 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2444 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2447 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2449 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2450 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2453 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2454 offset = (flag == SIT_BITMAP) ?
2455 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2457 * if large_nat_bitmap feature is enabled, leave checksum
2458 * protection for all nat/sit bitmaps.
2460 return tmp_ptr + offset + sizeof(__le32);
2463 if (__cp_payload(sbi) > 0) {
2464 if (flag == NAT_BITMAP)
2465 return &ckpt->sit_nat_version_bitmap;
2467 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2469 offset = (flag == NAT_BITMAP) ?
2470 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2471 return tmp_ptr + offset;
2475 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2477 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2479 if (sbi->cur_cp_pack == 2)
2480 start_addr += sbi->blocks_per_seg;
2484 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2486 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2488 if (sbi->cur_cp_pack == 1)
2489 start_addr += sbi->blocks_per_seg;
2493 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2495 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2498 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2500 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2503 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2504 struct inode *inode, bool is_inode)
2506 block_t valid_block_count;
2507 unsigned int valid_node_count, user_block_count;
2512 err = dquot_alloc_inode(inode);
2517 err = dquot_reserve_block(inode, 1);
2522 if (time_to_inject(sbi, FAULT_BLOCK)) {
2523 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2527 spin_lock(&sbi->stat_lock);
2529 valid_block_count = sbi->total_valid_block_count +
2530 sbi->current_reserved_blocks + 1;
2532 if (!__allow_reserved_blocks(sbi, inode, false))
2533 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2535 if (F2FS_IO_ALIGNED(sbi))
2536 valid_block_count += sbi->blocks_per_seg *
2537 SM_I(sbi)->additional_reserved_segments;
2539 user_block_count = sbi->user_block_count;
2540 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2541 user_block_count -= sbi->unusable_block_count;
2543 if (unlikely(valid_block_count > user_block_count)) {
2544 spin_unlock(&sbi->stat_lock);
2548 valid_node_count = sbi->total_valid_node_count + 1;
2549 if (unlikely(valid_node_count > sbi->total_node_count)) {
2550 spin_unlock(&sbi->stat_lock);
2554 sbi->total_valid_node_count++;
2555 sbi->total_valid_block_count++;
2556 spin_unlock(&sbi->stat_lock);
2560 f2fs_mark_inode_dirty_sync(inode, true);
2562 f2fs_i_blocks_write(inode, 1, true, true);
2565 percpu_counter_inc(&sbi->alloc_valid_block_count);
2571 dquot_free_inode(inode);
2573 dquot_release_reservation_block(inode, 1);
2578 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2579 struct inode *inode, bool is_inode)
2581 spin_lock(&sbi->stat_lock);
2583 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
2584 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
2586 sbi->total_valid_node_count--;
2587 sbi->total_valid_block_count--;
2588 if (sbi->reserved_blocks &&
2589 sbi->current_reserved_blocks < sbi->reserved_blocks)
2590 sbi->current_reserved_blocks++;
2592 spin_unlock(&sbi->stat_lock);
2595 dquot_free_inode(inode);
2597 if (unlikely(inode->i_blocks == 0)) {
2598 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2600 (unsigned long long)inode->i_blocks);
2601 set_sbi_flag(sbi, SBI_NEED_FSCK);
2604 f2fs_i_blocks_write(inode, 1, false, true);
2608 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2610 return sbi->total_valid_node_count;
2613 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2615 percpu_counter_inc(&sbi->total_valid_inode_count);
2618 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2620 percpu_counter_dec(&sbi->total_valid_inode_count);
2623 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2625 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2628 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2629 pgoff_t index, bool for_write)
2633 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2635 page = find_get_page_flags(mapping, index,
2636 FGP_LOCK | FGP_ACCESSED);
2638 page = find_lock_page(mapping, index);
2642 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2643 f2fs_show_injection_info(F2FS_M_SB(mapping),
2650 return grab_cache_page(mapping, index);
2651 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
2654 static inline struct page *f2fs_pagecache_get_page(
2655 struct address_space *mapping, pgoff_t index,
2656 int fgp_flags, gfp_t gfp_mask)
2658 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2659 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2663 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2666 static inline void f2fs_copy_page(struct page *src, struct page *dst)
2668 char *src_kaddr = kmap(src);
2669 char *dst_kaddr = kmap(dst);
2671 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
2676 static inline void f2fs_put_page(struct page *page, int unlock)
2682 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2688 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2691 f2fs_put_page(dn->node_page, 1);
2692 if (dn->inode_page && dn->node_page != dn->inode_page)
2693 f2fs_put_page(dn->inode_page, 0);
2694 dn->node_page = NULL;
2695 dn->inode_page = NULL;
2698 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2701 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2704 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2709 entry = kmem_cache_alloc(cachep, flags);
2711 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2715 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2716 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2719 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2721 if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
2722 f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
2726 return kmem_cache_alloc(cachep, flags);
2729 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2731 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2732 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2733 get_pages(sbi, F2FS_WB_CP_DATA) ||
2734 get_pages(sbi, F2FS_DIO_READ) ||
2735 get_pages(sbi, F2FS_DIO_WRITE))
2738 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2739 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2742 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2743 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2748 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2750 if (sbi->gc_mode == GC_URGENT_HIGH)
2753 if (is_inflight_io(sbi, type))
2756 if (sbi->gc_mode == GC_URGENT_LOW &&
2757 (type == DISCARD_TIME || type == GC_TIME))
2760 return f2fs_time_over(sbi, type);
2763 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2764 unsigned long index, void *item)
2766 while (radix_tree_insert(root, index, item))
2770 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2772 static inline bool IS_INODE(struct page *page)
2774 struct f2fs_node *p = F2FS_NODE(page);
2776 return RAW_IS_INODE(p);
2779 static inline int offset_in_addr(struct f2fs_inode *i)
2781 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2782 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2785 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2787 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2790 static inline int f2fs_has_extra_attr(struct inode *inode);
2791 static inline block_t data_blkaddr(struct inode *inode,
2792 struct page *node_page, unsigned int offset)
2794 struct f2fs_node *raw_node;
2797 bool is_inode = IS_INODE(node_page);
2799 raw_node = F2FS_NODE(node_page);
2803 /* from GC path only */
2804 base = offset_in_addr(&raw_node->i);
2805 else if (f2fs_has_extra_attr(inode))
2806 base = get_extra_isize(inode);
2809 addr_array = blkaddr_in_node(raw_node);
2810 return le32_to_cpu(addr_array[base + offset]);
2813 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2815 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2818 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2823 mask = 1 << (7 - (nr & 0x07));
2824 return mask & *addr;
2827 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2832 mask = 1 << (7 - (nr & 0x07));
2836 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2841 mask = 1 << (7 - (nr & 0x07));
2845 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2851 mask = 1 << (7 - (nr & 0x07));
2857 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2863 mask = 1 << (7 - (nr & 0x07));
2869 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2874 mask = 1 << (7 - (nr & 0x07));
2879 * On-disk inode flags (f2fs_inode::i_flags)
2881 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2882 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2883 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2884 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2885 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2886 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2887 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2888 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2889 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2890 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2891 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2893 /* Flags that should be inherited by new inodes from their parent. */
2894 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2895 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2896 F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
2898 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2899 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2902 /* Flags that are appropriate for non-directories/regular files. */
2903 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2905 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2909 else if (S_ISREG(mode))
2910 return flags & F2FS_REG_FLMASK;
2912 return flags & F2FS_OTHER_FLMASK;
2915 static inline void __mark_inode_dirty_flag(struct inode *inode,
2919 case FI_INLINE_XATTR:
2920 case FI_INLINE_DATA:
2921 case FI_INLINE_DENTRY:
2927 case FI_INLINE_DOTS:
2929 case FI_COMPRESS_RELEASED:
2930 f2fs_mark_inode_dirty_sync(inode, true);
2934 static inline void set_inode_flag(struct inode *inode, int flag)
2936 set_bit(flag, F2FS_I(inode)->flags);
2937 __mark_inode_dirty_flag(inode, flag, true);
2940 static inline int is_inode_flag_set(struct inode *inode, int flag)
2942 return test_bit(flag, F2FS_I(inode)->flags);
2945 static inline void clear_inode_flag(struct inode *inode, int flag)
2947 clear_bit(flag, F2FS_I(inode)->flags);
2948 __mark_inode_dirty_flag(inode, flag, false);
2951 static inline bool f2fs_verity_in_progress(struct inode *inode)
2953 return IS_ENABLED(CONFIG_FS_VERITY) &&
2954 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
2957 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2959 F2FS_I(inode)->i_acl_mode = mode;
2960 set_inode_flag(inode, FI_ACL_MODE);
2961 f2fs_mark_inode_dirty_sync(inode, false);
2964 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2970 f2fs_mark_inode_dirty_sync(inode, true);
2973 static inline void f2fs_i_blocks_write(struct inode *inode,
2974 block_t diff, bool add, bool claim)
2976 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2977 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2979 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2982 dquot_claim_block(inode, diff);
2984 dquot_alloc_block_nofail(inode, diff);
2986 dquot_free_block(inode, diff);
2989 f2fs_mark_inode_dirty_sync(inode, true);
2990 if (clean || recover)
2991 set_inode_flag(inode, FI_AUTO_RECOVER);
2994 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2996 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2997 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2999 if (i_size_read(inode) == i_size)
3002 i_size_write(inode, i_size);
3003 f2fs_mark_inode_dirty_sync(inode, true);
3004 if (clean || recover)
3005 set_inode_flag(inode, FI_AUTO_RECOVER);
3008 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
3010 F2FS_I(inode)->i_current_depth = depth;
3011 f2fs_mark_inode_dirty_sync(inode, true);
3014 static inline void f2fs_i_gc_failures_write(struct inode *inode,
3017 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
3018 f2fs_mark_inode_dirty_sync(inode, true);
3021 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
3023 F2FS_I(inode)->i_xattr_nid = xnid;
3024 f2fs_mark_inode_dirty_sync(inode, true);
3027 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
3029 F2FS_I(inode)->i_pino = pino;
3030 f2fs_mark_inode_dirty_sync(inode, true);
3033 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
3035 struct f2fs_inode_info *fi = F2FS_I(inode);
3037 if (ri->i_inline & F2FS_INLINE_XATTR)
3038 set_bit(FI_INLINE_XATTR, fi->flags);
3039 if (ri->i_inline & F2FS_INLINE_DATA)
3040 set_bit(FI_INLINE_DATA, fi->flags);
3041 if (ri->i_inline & F2FS_INLINE_DENTRY)
3042 set_bit(FI_INLINE_DENTRY, fi->flags);
3043 if (ri->i_inline & F2FS_DATA_EXIST)
3044 set_bit(FI_DATA_EXIST, fi->flags);
3045 if (ri->i_inline & F2FS_INLINE_DOTS)
3046 set_bit(FI_INLINE_DOTS, fi->flags);
3047 if (ri->i_inline & F2FS_EXTRA_ATTR)
3048 set_bit(FI_EXTRA_ATTR, fi->flags);
3049 if (ri->i_inline & F2FS_PIN_FILE)
3050 set_bit(FI_PIN_FILE, fi->flags);
3051 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
3052 set_bit(FI_COMPRESS_RELEASED, fi->flags);
3055 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
3059 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
3060 ri->i_inline |= F2FS_INLINE_XATTR;
3061 if (is_inode_flag_set(inode, FI_INLINE_DATA))
3062 ri->i_inline |= F2FS_INLINE_DATA;
3063 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
3064 ri->i_inline |= F2FS_INLINE_DENTRY;
3065 if (is_inode_flag_set(inode, FI_DATA_EXIST))
3066 ri->i_inline |= F2FS_DATA_EXIST;
3067 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
3068 ri->i_inline |= F2FS_INLINE_DOTS;
3069 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
3070 ri->i_inline |= F2FS_EXTRA_ATTR;
3071 if (is_inode_flag_set(inode, FI_PIN_FILE))
3072 ri->i_inline |= F2FS_PIN_FILE;
3073 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
3074 ri->i_inline |= F2FS_COMPRESS_RELEASED;
3077 static inline int f2fs_has_extra_attr(struct inode *inode)
3079 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3082 static inline int f2fs_has_inline_xattr(struct inode *inode)
3084 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3087 static inline int f2fs_compressed_file(struct inode *inode)
3089 return S_ISREG(inode->i_mode) &&
3090 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3093 static inline bool f2fs_need_compress_data(struct inode *inode)
3095 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3097 if (!f2fs_compressed_file(inode))
3100 if (compress_mode == COMPR_MODE_FS)
3102 else if (compress_mode == COMPR_MODE_USER &&
3103 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3109 static inline unsigned int addrs_per_inode(struct inode *inode)
3111 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3112 get_inline_xattr_addrs(inode);
3114 if (!f2fs_compressed_file(inode))
3116 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3119 static inline unsigned int addrs_per_block(struct inode *inode)
3121 if (!f2fs_compressed_file(inode))
3122 return DEF_ADDRS_PER_BLOCK;
3123 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3126 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3128 struct f2fs_inode *ri = F2FS_INODE(page);
3130 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3131 get_inline_xattr_addrs(inode)]);
3134 static inline int inline_xattr_size(struct inode *inode)
3136 if (f2fs_has_inline_xattr(inode))
3137 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3141 static inline int f2fs_has_inline_data(struct inode *inode)
3143 return is_inode_flag_set(inode, FI_INLINE_DATA);
3146 static inline int f2fs_exist_data(struct inode *inode)
3148 return is_inode_flag_set(inode, FI_DATA_EXIST);
3151 static inline int f2fs_has_inline_dots(struct inode *inode)
3153 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3156 static inline int f2fs_is_mmap_file(struct inode *inode)
3158 return is_inode_flag_set(inode, FI_MMAP_FILE);
3161 static inline bool f2fs_is_pinned_file(struct inode *inode)
3163 return is_inode_flag_set(inode, FI_PIN_FILE);
3166 static inline bool f2fs_is_atomic_file(struct inode *inode)
3168 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3171 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
3173 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
3176 static inline bool f2fs_is_volatile_file(struct inode *inode)
3178 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
3181 static inline bool f2fs_is_first_block_written(struct inode *inode)
3183 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3186 static inline bool f2fs_is_drop_cache(struct inode *inode)
3188 return is_inode_flag_set(inode, FI_DROP_CACHE);
3191 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3193 struct f2fs_inode *ri = F2FS_INODE(page);
3194 int extra_size = get_extra_isize(inode);
3196 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3199 static inline int f2fs_has_inline_dentry(struct inode *inode)
3201 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3204 static inline int is_file(struct inode *inode, int type)
3206 return F2FS_I(inode)->i_advise & type;
3209 static inline void set_file(struct inode *inode, int type)
3211 if (is_file(inode, type))
3213 F2FS_I(inode)->i_advise |= type;
3214 f2fs_mark_inode_dirty_sync(inode, true);
3217 static inline void clear_file(struct inode *inode, int type)
3219 if (!is_file(inode, type))
3221 F2FS_I(inode)->i_advise &= ~type;
3222 f2fs_mark_inode_dirty_sync(inode, true);
3225 static inline bool f2fs_is_time_consistent(struct inode *inode)
3227 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3229 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3231 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3233 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3234 &F2FS_I(inode)->i_crtime))
3239 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3244 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3246 spin_lock(&sbi->inode_lock[DIRTY_META]);
3247 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3248 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3251 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3252 file_keep_isize(inode) ||
3253 i_size_read(inode) & ~PAGE_MASK)
3256 if (!f2fs_is_time_consistent(inode))
3259 spin_lock(&F2FS_I(inode)->i_size_lock);
3260 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3261 spin_unlock(&F2FS_I(inode)->i_size_lock);
3266 static inline bool f2fs_readonly(struct super_block *sb)
3268 return sb_rdonly(sb);
3271 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3273 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3276 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3278 if (len == 1 && name[0] == '.')
3281 if (len == 2 && name[0] == '.' && name[1] == '.')
3287 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3288 size_t size, gfp_t flags)
3290 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3291 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3295 return kmalloc(size, flags);
3298 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3299 size_t size, gfp_t flags)
3301 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3304 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3305 size_t size, gfp_t flags)
3307 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3308 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3312 return kvmalloc(size, flags);
3315 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3316 size_t size, gfp_t flags)
3318 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3321 static inline int get_extra_isize(struct inode *inode)
3323 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3326 static inline int get_inline_xattr_addrs(struct inode *inode)
3328 return F2FS_I(inode)->i_inline_xattr_size;
3331 #define f2fs_get_inode_mode(i) \
3332 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3333 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3335 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3336 (offsetof(struct f2fs_inode, i_extra_end) - \
3337 offsetof(struct f2fs_inode, i_extra_isize)) \
3339 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3340 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3341 ((offsetof(typeof(*(f2fs_inode)), field) + \
3342 sizeof((f2fs_inode)->field)) \
3343 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3345 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3347 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3349 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3350 block_t blkaddr, int type);
3351 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3352 block_t blkaddr, int type)
3354 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3355 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3357 f2fs_bug_on(sbi, 1);
3361 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3363 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3364 blkaddr == COMPRESS_ADDR)
3372 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3373 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3374 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3375 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3376 int f2fs_truncate(struct inode *inode);
3377 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3378 struct kstat *stat, u32 request_mask, unsigned int flags);
3379 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3380 struct iattr *attr);
3381 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3382 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3383 int f2fs_precache_extents(struct inode *inode);
3384 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3385 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3386 struct dentry *dentry, struct fileattr *fa);
3387 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3388 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3389 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3390 int f2fs_pin_file_control(struct inode *inode, bool inc);
3395 void f2fs_set_inode_flags(struct inode *inode);
3396 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3397 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3398 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3399 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3400 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3401 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3402 void f2fs_update_inode_page(struct inode *inode);
3403 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3404 void f2fs_evict_inode(struct inode *inode);
3405 void f2fs_handle_failed_inode(struct inode *inode);
3410 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3411 bool hot, bool set);
3412 struct dentry *f2fs_get_parent(struct dentry *child);
3417 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3418 int f2fs_init_casefolded_name(const struct inode *dir,
3419 struct f2fs_filename *fname);
3420 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3421 int lookup, struct f2fs_filename *fname);
3422 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3423 struct f2fs_filename *fname);
3424 void f2fs_free_filename(struct f2fs_filename *fname);
3425 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3426 const struct f2fs_filename *fname, int *max_slots);
3427 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3428 unsigned int start_pos, struct fscrypt_str *fstr);
3429 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3430 struct f2fs_dentry_ptr *d);
3431 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3432 const struct f2fs_filename *fname, struct page *dpage);
3433 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3434 unsigned int current_depth);
3435 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3436 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3437 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3438 const struct f2fs_filename *fname,
3439 struct page **res_page);
3440 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3441 const struct qstr *child, struct page **res_page);
3442 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3443 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3444 struct page **page);
3445 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3446 struct page *page, struct inode *inode);
3447 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3448 const struct f2fs_filename *fname);
3449 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3450 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3451 unsigned int bit_pos);
3452 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3453 struct inode *inode, nid_t ino, umode_t mode);
3454 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3455 struct inode *inode, nid_t ino, umode_t mode);
3456 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3457 struct inode *inode, nid_t ino, umode_t mode);
3458 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3459 struct inode *dir, struct inode *inode);
3460 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3461 bool f2fs_empty_dir(struct inode *dir);
3463 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3465 if (fscrypt_is_nokey_name(dentry))
3467 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3468 inode, inode->i_ino, inode->i_mode);
3474 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3475 void f2fs_inode_synced(struct inode *inode);
3476 int f2fs_dquot_initialize(struct inode *inode);
3477 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3478 int f2fs_quota_sync(struct super_block *sb, int type);
3479 loff_t max_file_blocks(struct inode *inode);
3480 void f2fs_quota_off_umount(struct super_block *sb);
3481 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3482 int f2fs_sync_fs(struct super_block *sb, int sync);
3483 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3488 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3495 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3496 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3497 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3498 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3499 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3500 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3501 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3502 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3503 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3504 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3505 struct node_info *ni, bool checkpoint_context);
3506 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3507 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3508 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3509 int f2fs_truncate_xattr_node(struct inode *inode);
3510 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3511 unsigned int seq_id);
3512 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3513 int f2fs_remove_inode_page(struct inode *inode);
3514 struct page *f2fs_new_inode_page(struct inode *inode);
3515 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3516 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3517 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3518 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3519 int f2fs_move_node_page(struct page *node_page, int gc_type);
3520 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3521 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3522 struct writeback_control *wbc, bool atomic,
3523 unsigned int *seq_id);
3524 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3525 struct writeback_control *wbc,
3526 bool do_balance, enum iostat_type io_type);
3527 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3528 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3529 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3530 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3531 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3532 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3533 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3534 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3535 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3536 unsigned int segno, struct f2fs_summary_block *sum);
3537 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3538 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3539 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3540 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3541 int __init f2fs_create_node_manager_caches(void);
3542 void f2fs_destroy_node_manager_caches(void);
3547 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3548 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
3549 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
3550 void f2fs_drop_inmem_pages(struct inode *inode);
3551 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
3552 int f2fs_commit_inmem_pages(struct inode *inode);
3553 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3554 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3555 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3556 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3557 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3558 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3559 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3560 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3561 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3562 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3563 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3564 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3565 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3566 struct cp_control *cpc);
3567 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3568 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3569 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3570 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3571 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3572 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3573 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3574 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3575 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3576 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3577 unsigned int *newseg, bool new_sec, int dir);
3578 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3579 unsigned int start, unsigned int end);
3580 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3581 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3582 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3583 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3584 struct cp_control *cpc);
3585 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3586 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3588 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3589 enum iostat_type io_type);
3590 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3591 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3592 struct f2fs_io_info *fio);
3593 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3594 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3595 block_t old_blkaddr, block_t new_blkaddr,
3596 bool recover_curseg, bool recover_newaddr,
3598 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3599 block_t old_addr, block_t new_addr,
3600 unsigned char version, bool recover_curseg,
3601 bool recover_newaddr);
3602 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3603 block_t old_blkaddr, block_t *new_blkaddr,
3604 struct f2fs_summary *sum, int type,
3605 struct f2fs_io_info *fio);
3606 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3607 block_t blkaddr, unsigned int blkcnt);
3608 void f2fs_wait_on_page_writeback(struct page *page,
3609 enum page_type type, bool ordered, bool locked);
3610 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3611 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3613 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3614 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3615 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3616 unsigned int val, int alloc);
3617 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3618 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3619 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3620 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3621 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3622 int __init f2fs_create_segment_manager_caches(void);
3623 void f2fs_destroy_segment_manager_caches(void);
3624 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3625 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
3626 enum page_type type, enum temp_type temp);
3627 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3628 unsigned int segno);
3629 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3630 unsigned int segno);
3632 #define DEF_FRAGMENT_SIZE 4
3633 #define MIN_FRAGMENT_SIZE 1
3634 #define MAX_FRAGMENT_SIZE 512
3636 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3638 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3639 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3645 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
3646 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3647 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3648 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3649 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3650 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3651 block_t blkaddr, int type);
3652 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3653 int type, bool sync);
3654 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
3655 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3656 long nr_to_write, enum iostat_type io_type);
3657 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3658 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3659 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3660 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3661 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3662 unsigned int devidx, int type);
3663 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3664 unsigned int devidx, int type);
3665 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3666 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3667 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3668 void f2fs_add_orphan_inode(struct inode *inode);
3669 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3670 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3671 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3672 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
3673 void f2fs_remove_dirty_inode(struct inode *inode);
3674 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
3675 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3676 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3677 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3678 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3679 int __init f2fs_create_checkpoint_caches(void);
3680 void f2fs_destroy_checkpoint_caches(void);
3681 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3682 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3683 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3684 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3689 int __init f2fs_init_bioset(void);
3690 void f2fs_destroy_bioset(void);
3691 int f2fs_init_bio_entry_cache(void);
3692 void f2fs_destroy_bio_entry_cache(void);
3693 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3694 struct bio *bio, enum page_type type);
3695 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3696 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3697 struct inode *inode, struct page *page,
3698 nid_t ino, enum page_type type);
3699 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3700 struct bio **bio, struct page *page);
3701 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3702 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3703 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3704 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3705 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3706 block_t blk_addr, struct bio *bio);
3707 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3708 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3709 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3710 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3711 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3712 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3713 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3714 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3715 int op_flags, bool for_write);
3716 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
3717 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3719 struct page *f2fs_get_new_data_page(struct inode *inode,
3720 struct page *ipage, pgoff_t index, bool new_i_size);
3721 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3722 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3723 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3724 int create, int flag);
3725 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3726 u64 start, u64 len);
3727 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3728 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3729 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3730 int f2fs_write_single_data_page(struct page *page, int *submitted,
3731 struct bio **bio, sector_t *last_block,
3732 struct writeback_control *wbc,
3733 enum iostat_type io_type,
3734 int compr_blocks, bool allow_balance);
3735 void f2fs_write_failed(struct inode *inode, loff_t to);
3736 void f2fs_invalidate_page(struct page *page, unsigned int offset,
3737 unsigned int length);
3738 int f2fs_release_page(struct page *page, gfp_t wait);
3739 #ifdef CONFIG_MIGRATION
3740 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
3741 struct page *page, enum migrate_mode mode);
3743 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3744 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3745 int f2fs_init_post_read_processing(void);
3746 void f2fs_destroy_post_read_processing(void);
3747 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3748 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3749 extern const struct iomap_ops f2fs_iomap_ops;
3754 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3755 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3756 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3757 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background, bool force,
3758 unsigned int segno);
3759 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3760 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3761 int __init f2fs_create_garbage_collection_cache(void);
3762 void f2fs_destroy_garbage_collection_cache(void);
3767 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3768 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3769 int __init f2fs_create_recovery_cache(void);
3770 void f2fs_destroy_recovery_cache(void);
3775 #ifdef CONFIG_F2FS_STAT_FS
3776 struct f2fs_stat_info {
3777 struct list_head stat_list;
3778 struct f2fs_sb_info *sbi;
3779 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3780 int main_area_segs, main_area_sections, main_area_zones;
3781 unsigned long long hit_largest, hit_cached, hit_rbtree;
3782 unsigned long long hit_total, total_ext;
3783 int ext_tree, zombie_tree, ext_node;
3784 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3785 int ndirty_data, ndirty_qdata;
3787 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3788 int nats, dirty_nats, sits, dirty_sits;
3789 int free_nids, avail_nids, alloc_nids;
3790 int total_count, utilization;
3791 int bg_gc, nr_wb_cp_data, nr_wb_data;
3792 int nr_rd_data, nr_rd_node, nr_rd_meta;
3793 int nr_dio_read, nr_dio_write;
3794 unsigned int io_skip_bggc, other_skip_bggc;
3795 int nr_flushing, nr_flushed, flush_list_empty;
3796 int nr_discarding, nr_discarded;
3798 unsigned int undiscard_blks;
3799 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3800 unsigned int cur_ckpt_time, peak_ckpt_time;
3801 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3803 unsigned long long compr_blocks;
3804 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3805 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3806 unsigned int bimodal, avg_vblocks;
3807 int util_free, util_valid, util_invalid;
3808 int rsvd_segs, overp_segs;
3809 int dirty_count, node_pages, meta_pages, compress_pages;
3810 int compress_page_hit;
3811 int prefree_count, call_count, cp_count, bg_cp_count;
3812 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3813 int bg_node_segs, bg_data_segs;
3814 int tot_blks, data_blks, node_blks;
3815 int bg_data_blks, bg_node_blks;
3816 unsigned long long skipped_atomic_files[2];
3817 int curseg[NR_CURSEG_TYPE];
3818 int cursec[NR_CURSEG_TYPE];
3819 int curzone[NR_CURSEG_TYPE];
3820 unsigned int dirty_seg[NR_CURSEG_TYPE];
3821 unsigned int full_seg[NR_CURSEG_TYPE];
3822 unsigned int valid_blks[NR_CURSEG_TYPE];
3824 unsigned int meta_count[META_MAX];
3825 unsigned int segment_count[2];
3826 unsigned int block_count[2];
3827 unsigned int inplace_count;
3828 unsigned long long base_mem, cache_mem, page_mem;
3831 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3833 return (struct f2fs_stat_info *)sbi->stat_info;
3836 #define stat_inc_cp_count(si) ((si)->cp_count++)
3837 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3838 #define stat_inc_call_count(si) ((si)->call_count++)
3839 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3840 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3841 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3842 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3843 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3844 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3845 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3846 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3847 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3848 #define stat_inc_inline_xattr(inode) \
3850 if (f2fs_has_inline_xattr(inode)) \
3851 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3853 #define stat_dec_inline_xattr(inode) \
3855 if (f2fs_has_inline_xattr(inode)) \
3856 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3858 #define stat_inc_inline_inode(inode) \
3860 if (f2fs_has_inline_data(inode)) \
3861 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3863 #define stat_dec_inline_inode(inode) \
3865 if (f2fs_has_inline_data(inode)) \
3866 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3868 #define stat_inc_inline_dir(inode) \
3870 if (f2fs_has_inline_dentry(inode)) \
3871 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3873 #define stat_dec_inline_dir(inode) \
3875 if (f2fs_has_inline_dentry(inode)) \
3876 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3878 #define stat_inc_compr_inode(inode) \
3880 if (f2fs_compressed_file(inode)) \
3881 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3883 #define stat_dec_compr_inode(inode) \
3885 if (f2fs_compressed_file(inode)) \
3886 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3888 #define stat_add_compr_blocks(inode, blocks) \
3889 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3890 #define stat_sub_compr_blocks(inode, blocks) \
3891 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3892 #define stat_inc_meta_count(sbi, blkaddr) \
3894 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
3895 atomic_inc(&(sbi)->meta_count[META_CP]); \
3896 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
3897 atomic_inc(&(sbi)->meta_count[META_SIT]); \
3898 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
3899 atomic_inc(&(sbi)->meta_count[META_NAT]); \
3900 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
3901 atomic_inc(&(sbi)->meta_count[META_SSA]); \
3903 #define stat_inc_seg_type(sbi, curseg) \
3904 ((sbi)->segment_count[(curseg)->alloc_type]++)
3905 #define stat_inc_block_count(sbi, curseg) \
3906 ((sbi)->block_count[(curseg)->alloc_type]++)
3907 #define stat_inc_inplace_blocks(sbi) \
3908 (atomic_inc(&(sbi)->inplace_count))
3909 #define stat_update_max_atomic_write(inode) \
3911 int cur = F2FS_I_SB(inode)->atomic_files; \
3912 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3914 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3916 #define stat_inc_volatile_write(inode) \
3917 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3918 #define stat_dec_volatile_write(inode) \
3919 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3920 #define stat_update_max_volatile_write(inode) \
3922 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3923 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3925 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3927 #define stat_inc_seg_count(sbi, type, gc_type) \
3929 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3931 if ((type) == SUM_TYPE_DATA) { \
3933 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3936 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3940 #define stat_inc_tot_blk_count(si, blks) \
3941 ((si)->tot_blks += (blks))
3943 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3945 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3946 stat_inc_tot_blk_count(si, blks); \
3947 si->data_blks += (blks); \
3948 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3951 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3953 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3954 stat_inc_tot_blk_count(si, blks); \
3955 si->node_blks += (blks); \
3956 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3959 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3960 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3961 void __init f2fs_create_root_stats(void);
3962 void f2fs_destroy_root_stats(void);
3963 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
3965 #define stat_inc_cp_count(si) do { } while (0)
3966 #define stat_inc_bg_cp_count(si) do { } while (0)
3967 #define stat_inc_call_count(si) do { } while (0)
3968 #define stat_inc_bggc_count(si) do { } while (0)
3969 #define stat_io_skip_bggc_count(sbi) do { } while (0)
3970 #define stat_other_skip_bggc_count(sbi) do { } while (0)
3971 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3972 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3973 #define stat_inc_total_hit(sbi) do { } while (0)
3974 #define stat_inc_rbtree_node_hit(sbi) do { } while (0)
3975 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3976 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3977 #define stat_inc_inline_xattr(inode) do { } while (0)
3978 #define stat_dec_inline_xattr(inode) do { } while (0)
3979 #define stat_inc_inline_inode(inode) do { } while (0)
3980 #define stat_dec_inline_inode(inode) do { } while (0)
3981 #define stat_inc_inline_dir(inode) do { } while (0)
3982 #define stat_dec_inline_dir(inode) do { } while (0)
3983 #define stat_inc_compr_inode(inode) do { } while (0)
3984 #define stat_dec_compr_inode(inode) do { } while (0)
3985 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
3986 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
3987 #define stat_update_max_atomic_write(inode) do { } while (0)
3988 #define stat_inc_volatile_write(inode) do { } while (0)
3989 #define stat_dec_volatile_write(inode) do { } while (0)
3990 #define stat_update_max_volatile_write(inode) do { } while (0)
3991 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
3992 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3993 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3994 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3995 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3996 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3997 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3998 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
4000 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
4001 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
4002 static inline void __init f2fs_create_root_stats(void) { }
4003 static inline void f2fs_destroy_root_stats(void) { }
4004 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
4007 extern const struct file_operations f2fs_dir_operations;
4008 extern const struct file_operations f2fs_file_operations;
4009 extern const struct inode_operations f2fs_file_inode_operations;
4010 extern const struct address_space_operations f2fs_dblock_aops;
4011 extern const struct address_space_operations f2fs_node_aops;
4012 extern const struct address_space_operations f2fs_meta_aops;
4013 extern const struct inode_operations f2fs_dir_inode_operations;
4014 extern const struct inode_operations f2fs_symlink_inode_operations;
4015 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
4016 extern const struct inode_operations f2fs_special_inode_operations;
4017 extern struct kmem_cache *f2fs_inode_entry_slab;
4022 bool f2fs_may_inline_data(struct inode *inode);
4023 bool f2fs_may_inline_dentry(struct inode *inode);
4024 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
4025 void f2fs_truncate_inline_inode(struct inode *inode,
4026 struct page *ipage, u64 from);
4027 int f2fs_read_inline_data(struct inode *inode, struct page *page);
4028 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
4029 int f2fs_convert_inline_inode(struct inode *inode);
4030 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
4031 int f2fs_write_inline_data(struct inode *inode, struct page *page);
4032 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
4033 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
4034 const struct f2fs_filename *fname,
4035 struct page **res_page);
4036 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
4037 struct page *ipage);
4038 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
4039 struct inode *inode, nid_t ino, umode_t mode);
4040 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
4041 struct page *page, struct inode *dir,
4042 struct inode *inode);
4043 bool f2fs_empty_inline_dir(struct inode *dir);
4044 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
4045 struct fscrypt_str *fstr);
4046 int f2fs_inline_data_fiemap(struct inode *inode,
4047 struct fiemap_extent_info *fieinfo,
4048 __u64 start, __u64 len);
4053 unsigned long f2fs_shrink_count(struct shrinker *shrink,
4054 struct shrink_control *sc);
4055 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
4056 struct shrink_control *sc);
4057 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
4058 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
4063 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
4064 struct rb_entry *cached_re, unsigned int ofs);
4065 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
4066 struct rb_root_cached *root,
4067 struct rb_node **parent,
4068 unsigned long long key, bool *left_most);
4069 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
4070 struct rb_root_cached *root,
4071 struct rb_node **parent,
4072 unsigned int ofs, bool *leftmost);
4073 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
4074 struct rb_entry *cached_re, unsigned int ofs,
4075 struct rb_entry **prev_entry, struct rb_entry **next_entry,
4076 struct rb_node ***insert_p, struct rb_node **insert_parent,
4077 bool force, bool *leftmost);
4078 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
4079 struct rb_root_cached *root, bool check_key);
4080 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
4081 void f2fs_init_extent_tree(struct inode *inode, struct page *ipage);
4082 void f2fs_drop_extent_tree(struct inode *inode);
4083 unsigned int f2fs_destroy_extent_node(struct inode *inode);
4084 void f2fs_destroy_extent_tree(struct inode *inode);
4085 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
4086 struct extent_info *ei);
4087 void f2fs_update_extent_cache(struct dnode_of_data *dn);
4088 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
4089 pgoff_t fofs, block_t blkaddr, unsigned int len);
4090 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
4091 int __init f2fs_create_extent_cache(void);
4092 void f2fs_destroy_extent_cache(void);
4097 #define MIN_RA_MUL 2
4098 #define MAX_RA_MUL 256
4100 int __init f2fs_init_sysfs(void);
4101 void f2fs_exit_sysfs(void);
4102 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4103 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4106 extern const struct fsverity_operations f2fs_verityops;
4111 static inline bool f2fs_encrypted_file(struct inode *inode)
4113 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4116 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4118 #ifdef CONFIG_FS_ENCRYPTION
4119 file_set_encrypt(inode);
4120 f2fs_set_inode_flags(inode);
4125 * Returns true if the reads of the inode's data need to undergo some
4126 * postprocessing step, like decryption or authenticity verification.
4128 static inline bool f2fs_post_read_required(struct inode *inode)
4130 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4131 f2fs_compressed_file(inode);
4137 #ifdef CONFIG_F2FS_FS_COMPRESSION
4138 bool f2fs_is_compressed_page(struct page *page);
4139 struct page *f2fs_compress_control_page(struct page *page);
4140 int f2fs_prepare_compress_overwrite(struct inode *inode,
4141 struct page **pagep, pgoff_t index, void **fsdata);
4142 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4143 pgoff_t index, unsigned copied);
4144 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4145 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4146 bool f2fs_is_compress_backend_ready(struct inode *inode);
4147 int f2fs_init_compress_mempool(void);
4148 void f2fs_destroy_compress_mempool(void);
4149 void f2fs_decompress_cluster(struct decompress_io_ctx *dic);
4150 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4152 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4153 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4154 bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
4155 int index, int nr_pages);
4156 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4157 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4158 int f2fs_write_multi_pages(struct compress_ctx *cc,
4160 struct writeback_control *wbc,
4161 enum iostat_type io_type);
4162 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4163 void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4164 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4165 unsigned int c_len);
4166 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4167 unsigned nr_pages, sector_t *last_block_in_bio,
4168 bool is_readahead, bool for_write);
4169 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4170 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
4171 void f2fs_put_page_dic(struct page *page);
4172 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4173 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4174 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4175 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4176 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4177 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4178 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4179 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4180 int __init f2fs_init_compress_cache(void);
4181 void f2fs_destroy_compress_cache(void);
4182 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4183 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4184 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4185 nid_t ino, block_t blkaddr);
4186 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4188 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4189 #define inc_compr_inode_stat(inode) \
4191 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4192 sbi->compr_new_inode++; \
4194 #define add_compr_block_stat(inode, blocks) \
4196 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4197 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4198 sbi->compr_written_block += blocks; \
4199 sbi->compr_saved_block += diff; \
4202 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4203 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4205 if (!f2fs_compressed_file(inode))
4207 /* not support compression */
4210 static inline struct page *f2fs_compress_control_page(struct page *page)
4213 return ERR_PTR(-EINVAL);
4215 static inline int f2fs_init_compress_mempool(void) { return 0; }
4216 static inline void f2fs_destroy_compress_mempool(void) { }
4217 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic) { }
4218 static inline void f2fs_end_read_compressed_page(struct page *page,
4219 bool failed, block_t blkaddr)
4223 static inline void f2fs_put_page_dic(struct page *page)
4227 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
4228 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
4229 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4230 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4231 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4232 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4233 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4234 static inline void f2fs_destroy_compress_cache(void) { }
4235 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4236 block_t blkaddr) { }
4237 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4238 struct page *page, nid_t ino, block_t blkaddr) { }
4239 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4240 struct page *page, block_t blkaddr) { return false; }
4241 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4243 #define inc_compr_inode_stat(inode) do { } while (0)
4244 static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
4245 pgoff_t fofs, block_t blkaddr, unsigned int llen,
4246 unsigned int c_len) { }
4249 static inline void set_compress_context(struct inode *inode)
4251 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4253 F2FS_I(inode)->i_compress_algorithm =
4254 F2FS_OPTION(sbi).compress_algorithm;
4255 F2FS_I(inode)->i_log_cluster_size =
4256 F2FS_OPTION(sbi).compress_log_size;
4257 F2FS_I(inode)->i_compress_flag =
4258 F2FS_OPTION(sbi).compress_chksum ?
4259 1 << COMPRESS_CHKSUM : 0;
4260 F2FS_I(inode)->i_cluster_size =
4261 1 << F2FS_I(inode)->i_log_cluster_size;
4262 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4263 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4264 F2FS_OPTION(sbi).compress_level)
4265 F2FS_I(inode)->i_compress_flag |=
4266 F2FS_OPTION(sbi).compress_level <<
4267 COMPRESS_LEVEL_OFFSET;
4268 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4269 set_inode_flag(inode, FI_COMPRESSED_FILE);
4270 stat_inc_compr_inode(inode);
4271 inc_compr_inode_stat(inode);
4272 f2fs_mark_inode_dirty_sync(inode, true);
4275 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4277 struct f2fs_inode_info *fi = F2FS_I(inode);
4279 if (!f2fs_compressed_file(inode))
4281 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
4284 fi->i_flags &= ~F2FS_COMPR_FL;
4285 stat_dec_compr_inode(inode);
4286 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4287 f2fs_mark_inode_dirty_sync(inode, true);
4291 #define F2FS_FEATURE_FUNCS(name, flagname) \
4292 static inline int f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4294 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4297 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4298 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4299 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4300 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4301 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4302 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4303 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4304 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4305 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4306 F2FS_FEATURE_FUNCS(verity, VERITY);
4307 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4308 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4309 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4310 F2FS_FEATURE_FUNCS(readonly, RO);
4312 static inline bool f2fs_may_extent_tree(struct inode *inode)
4314 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4316 if (!test_opt(sbi, EXTENT_CACHE) ||
4317 is_inode_flag_set(inode, FI_NO_EXTENT) ||
4318 (is_inode_flag_set(inode, FI_COMPRESSED_FILE) &&
4319 !f2fs_sb_has_readonly(sbi)))
4323 * for recovered files during mount do not create extents
4324 * if shrinker is not registered.
4326 if (list_empty(&sbi->s_list))
4329 return S_ISREG(inode->i_mode);
4332 #ifdef CONFIG_BLK_DEV_ZONED
4333 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4336 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4338 return test_bit(zno, FDEV(devi).blkz_seq);
4342 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4344 return f2fs_sb_has_blkzoned(sbi);
4347 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4349 return blk_queue_discard(bdev_get_queue(bdev)) ||
4350 bdev_is_zoned(bdev);
4353 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4357 if (!f2fs_is_multi_device(sbi))
4358 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4360 for (i = 0; i < sbi->s_ndevs; i++)
4361 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4366 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4368 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4369 f2fs_hw_should_discard(sbi);
4372 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4376 if (!f2fs_is_multi_device(sbi))
4377 return bdev_read_only(sbi->sb->s_bdev);
4379 for (i = 0; i < sbi->s_ndevs; i++)
4380 if (bdev_read_only(FDEV(i).bdev))
4385 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4387 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4390 static inline bool f2fs_may_compress(struct inode *inode)
4392 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4393 f2fs_is_atomic_file(inode) ||
4394 f2fs_is_volatile_file(inode))
4396 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4399 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4400 u64 blocks, bool add)
4402 int diff = F2FS_I(inode)->i_cluster_size - blocks;
4403 struct f2fs_inode_info *fi = F2FS_I(inode);
4405 /* don't update i_compr_blocks if saved blocks were released */
4406 if (!add && !atomic_read(&fi->i_compr_blocks))
4410 atomic_add(diff, &fi->i_compr_blocks);
4411 stat_add_compr_blocks(inode, diff);
4413 atomic_sub(diff, &fi->i_compr_blocks);
4414 stat_sub_compr_blocks(inode, diff);
4416 f2fs_mark_inode_dirty_sync(inode, true);
4419 static inline int block_unaligned_IO(struct inode *inode,
4420 struct kiocb *iocb, struct iov_iter *iter)
4422 unsigned int i_blkbits = READ_ONCE(inode->i_blkbits);
4423 unsigned int blocksize_mask = (1 << i_blkbits) - 1;
4424 loff_t offset = iocb->ki_pos;
4425 unsigned long align = offset | iov_iter_alignment(iter);
4427 return align & blocksize_mask;
4430 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4433 if (!f2fs_is_multi_device(sbi))
4435 if (flag != F2FS_GET_BLOCK_DIO)
4437 return sbi->aligned_blksize;
4440 static inline bool f2fs_force_buffered_io(struct inode *inode,
4441 struct kiocb *iocb, struct iov_iter *iter)
4443 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4444 int rw = iov_iter_rw(iter);
4446 if (f2fs_post_read_required(inode))
4449 /* disallow direct IO if any of devices has unaligned blksize */
4450 if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
4453 * for blkzoned device, fallback direct IO to buffered IO, so
4454 * all IOs can be serialized by log-structured write.
4456 if (f2fs_sb_has_blkzoned(sbi))
4458 if (f2fs_lfs_mode(sbi) && (rw == WRITE)) {
4459 if (block_unaligned_IO(inode, iocb, iter))
4461 if (F2FS_IO_ALIGNED(sbi))
4464 if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED))
4470 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4472 return fsverity_active(inode) &&
4473 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4476 #ifdef CONFIG_F2FS_FAULT_INJECTION
4477 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4480 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4483 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4486 if (f2fs_sb_has_quota_ino(sbi))
4488 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4489 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4490 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4496 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4498 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4501 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4502 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4504 #endif /* _LINUX_F2FS_H */