1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
11 #include <linux/uio.h>
12 #include <linux/types.h>
13 #include <linux/page-flags.h>
14 #include <linux/buffer_head.h>
15 #include <linux/slab.h>
16 #include <linux/crc32.h>
17 #include <linux/magic.h>
18 #include <linux/kobject.h>
19 #include <linux/sched.h>
20 #include <linux/cred.h>
21 #include <linux/sched/mm.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #include <linux/quotaops.h>
26 #include <linux/part_stat.h>
27 #include <crypto/hash.h>
29 #include <linux/fscrypt.h>
30 #include <linux/fsverity.h>
34 #ifdef CONFIG_F2FS_CHECK_FS
35 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
37 #define f2fs_bug_on(sbi, condition) \
39 if (WARN_ON(condition)) \
40 set_sbi_flag(sbi, SBI_NEED_FSCK); \
49 FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
67 #ifdef CONFIG_F2FS_FAULT_INJECTION
68 #define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1)
70 struct f2fs_fault_info {
72 unsigned int inject_rate;
73 unsigned int inject_type;
76 extern const char *f2fs_fault_name[FAULT_MAX];
77 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
83 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
84 #define F2FS_MOUNT_DISCARD 0x00000004
85 #define F2FS_MOUNT_NOHEAP 0x00000008
86 #define F2FS_MOUNT_XATTR_USER 0x00000010
87 #define F2FS_MOUNT_POSIX_ACL 0x00000020
88 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
89 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
90 #define F2FS_MOUNT_INLINE_DATA 0x00000100
91 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
92 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
93 #define F2FS_MOUNT_NOBARRIER 0x00000800
94 #define F2FS_MOUNT_FASTBOOT 0x00001000
95 #define F2FS_MOUNT_READ_EXTENT_CACHE 0x00002000
96 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
97 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
98 #define F2FS_MOUNT_USRQUOTA 0x00080000
99 #define F2FS_MOUNT_GRPQUOTA 0x00100000
100 #define F2FS_MOUNT_PRJQUOTA 0x00200000
101 #define F2FS_MOUNT_QUOTA 0x00400000
102 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
103 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
104 #define F2FS_MOUNT_DISABLE_CHECKPOINT 0x02000000
105 #define F2FS_MOUNT_NORECOVERY 0x04000000
106 #define F2FS_MOUNT_ATGC 0x08000000
107 #define F2FS_MOUNT_MERGE_CHECKPOINT 0x10000000
108 #define F2FS_MOUNT_GC_MERGE 0x20000000
109 #define F2FS_MOUNT_COMPRESS_CACHE 0x40000000
110 #define F2FS_MOUNT_AGE_EXTENT_CACHE 0x80000000
112 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
113 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
114 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
115 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
117 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
118 typecheck(unsigned long long, b) && \
119 ((long long)((a) - (b)) > 0))
121 typedef u32 block_t; /*
122 * should not change u32, since it is the on-disk block
123 * address format, __le32.
127 #define COMPRESS_EXT_NUM 16
130 * An implementation of an rwsem that is explicitly unfair to readers. This
131 * prevents priority inversion when a low-priority reader acquires the read lock
132 * while sleeping on the write lock but the write lock is needed by
133 * higher-priority clients.
137 struct rw_semaphore internal_rwsem;
138 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
139 wait_queue_head_t read_waiters;
143 struct f2fs_mount_info {
145 int write_io_size_bits; /* Write IO size bits */
146 block_t root_reserved_blocks; /* root reserved blocks */
147 kuid_t s_resuid; /* reserved blocks for uid */
148 kgid_t s_resgid; /* reserved blocks for gid */
149 int active_logs; /* # of active logs */
150 int inline_xattr_size; /* inline xattr size */
151 #ifdef CONFIG_F2FS_FAULT_INJECTION
152 struct f2fs_fault_info fault_info; /* For fault injection */
155 /* Names of quota files with journalled quota */
156 char *s_qf_names[MAXQUOTAS];
157 int s_jquota_fmt; /* Format of quota to use */
159 /* For which write hints are passed down to block layer */
160 int alloc_mode; /* segment allocation policy */
161 int fsync_mode; /* fsync policy */
162 int fs_mode; /* fs mode: LFS or ADAPTIVE */
163 int bggc_mode; /* bggc mode: off, on or sync */
164 int memory_mode; /* memory mode */
166 * discard command's offset/size should
167 * be aligned to this unit: block,
170 struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
171 block_t unusable_cap_perc; /* percentage for cap */
172 block_t unusable_cap; /* Amount of space allowed to be
173 * unusable when disabling checkpoint
176 /* For compression */
177 unsigned char compress_algorithm; /* algorithm type */
178 unsigned char compress_log_size; /* cluster log size */
179 unsigned char compress_level; /* compress level */
180 bool compress_chksum; /* compressed data chksum */
181 unsigned char compress_ext_cnt; /* extension count */
182 unsigned char nocompress_ext_cnt; /* nocompress extension count */
183 int compress_mode; /* compression mode */
184 unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
185 unsigned char noextensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
188 #define F2FS_FEATURE_ENCRYPT 0x0001
189 #define F2FS_FEATURE_BLKZONED 0x0002
190 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
191 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
192 #define F2FS_FEATURE_PRJQUOTA 0x0010
193 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
194 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
195 #define F2FS_FEATURE_QUOTA_INO 0x0080
196 #define F2FS_FEATURE_INODE_CRTIME 0x0100
197 #define F2FS_FEATURE_LOST_FOUND 0x0200
198 #define F2FS_FEATURE_VERITY 0x0400
199 #define F2FS_FEATURE_SB_CHKSUM 0x0800
200 #define F2FS_FEATURE_CASEFOLD 0x1000
201 #define F2FS_FEATURE_COMPRESSION 0x2000
202 #define F2FS_FEATURE_RO 0x4000
204 #define __F2FS_HAS_FEATURE(raw_super, mask) \
205 ((raw_super->feature & cpu_to_le32(mask)) != 0)
206 #define F2FS_HAS_FEATURE(sbi, mask) __F2FS_HAS_FEATURE(sbi->raw_super, mask)
209 * Default values for user and/or group using reserved blocks
211 #define F2FS_DEF_RESUID 0
212 #define F2FS_DEF_RESGID 0
215 * For checkpoint manager
222 #define CP_UMOUNT 0x00000001
223 #define CP_FASTBOOT 0x00000002
224 #define CP_SYNC 0x00000004
225 #define CP_RECOVERY 0x00000008
226 #define CP_DISCARD 0x00000010
227 #define CP_TRIMMED 0x00000020
228 #define CP_PAUSE 0x00000040
229 #define CP_RESIZE 0x00000080
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
267 DATA_GENERIC_ENHANCE_UPDATE, /*
268 * strong check on range and segment
269 * bitmap for update case
274 /* for the list of ino */
276 ORPHAN_INO, /* for orphan ino list */
277 APPEND_INO, /* for append ino list */
278 UPDATE_INO, /* for update ino list */
279 TRANS_DIR_INO, /* for transactions dir ino list */
280 FLUSH_INO, /* for multiple device flushing */
281 MAX_INO_ENTRY, /* max. list */
285 struct list_head list; /* list head */
286 nid_t ino; /* inode number */
287 unsigned int dirty_device; /* dirty device bitmap */
290 /* for the list of inodes to be GCed */
292 struct list_head list; /* list head */
293 struct inode *inode; /* vfs inode pointer */
296 struct fsync_node_entry {
297 struct list_head list; /* list head */
298 struct page *page; /* warm node page pointer */
299 unsigned int seq_id; /* sequence id */
303 struct completion wait; /* completion for checkpoint done */
304 struct llist_node llnode; /* llist_node to be linked in wait queue */
305 int ret; /* return code of checkpoint */
306 ktime_t queue_time; /* request queued time */
309 struct ckpt_req_control {
310 struct task_struct *f2fs_issue_ckpt; /* checkpoint task */
311 int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */
312 wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */
313 atomic_t issued_ckpt; /* # of actually issued ckpts */
314 atomic_t total_ckpt; /* # of total ckpts */
315 atomic_t queued_ckpt; /* # of queued ckpts */
316 struct llist_head issue_list; /* list for command issue */
317 spinlock_t stat_lock; /* lock for below checkpoint time stats */
318 unsigned int cur_time; /* cur wait time in msec for currently issued checkpoint */
319 unsigned int peak_time; /* peak wait time in msec until now */
322 /* for the bitmap indicate blocks to be discarded */
323 struct discard_entry {
324 struct list_head list; /* list head */
325 block_t start_blkaddr; /* start blockaddr of current segment */
326 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
329 /* minimum discard granularity, unit: block count */
330 #define MIN_DISCARD_GRANULARITY 1
331 /* default discard granularity of inner discard thread, unit: block count */
332 #define DEFAULT_DISCARD_GRANULARITY 16
333 /* default maximum discard granularity of ordered discard, unit: block count */
334 #define DEFAULT_MAX_ORDERED_DISCARD_GRANULARITY 16
336 /* max discard pend list number */
337 #define MAX_PLIST_NUM 512
338 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
339 (MAX_PLIST_NUM - 1) : ((blk_num) - 1))
342 D_PREP, /* initial */
343 D_PARTIAL, /* partially submitted */
344 D_SUBMIT, /* all submitted */
345 D_DONE, /* finished */
348 struct discard_info {
349 block_t lstart; /* logical start address */
350 block_t len; /* length */
351 block_t start; /* actual start address in dev */
355 struct rb_node rb_node; /* rb node located in rb-tree */
358 block_t lstart; /* logical start address */
359 block_t len; /* length */
360 block_t start; /* actual start address in dev */
362 struct discard_info di; /* discard info */
365 struct list_head list; /* command list */
366 struct completion wait; /* compleation */
367 struct block_device *bdev; /* bdev */
368 unsigned short ref; /* reference count */
369 unsigned char state; /* state */
370 unsigned char queued; /* queued discard */
371 int error; /* bio error */
372 spinlock_t lock; /* for state/bio_ref updating */
373 unsigned short bio_ref; /* bio reference count */
384 struct discard_policy {
385 int type; /* type of discard */
386 unsigned int min_interval; /* used for candidates exist */
387 unsigned int mid_interval; /* used for device busy */
388 unsigned int max_interval; /* used for candidates not exist */
389 unsigned int max_requests; /* # of discards issued per round */
390 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
391 bool io_aware; /* issue discard in idle time */
392 bool sync; /* submit discard with REQ_SYNC flag */
393 bool ordered; /* issue discard by lba order */
394 bool timeout; /* discard timeout for put_super */
395 unsigned int granularity; /* discard granularity */
398 struct discard_cmd_control {
399 struct task_struct *f2fs_issue_discard; /* discard thread */
400 struct list_head entry_list; /* 4KB discard entry list */
401 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
402 struct list_head wait_list; /* store on-flushing entries */
403 struct list_head fstrim_list; /* in-flight discard from fstrim */
404 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
405 unsigned int discard_wake; /* to wake up discard thread */
406 struct mutex cmd_lock;
407 unsigned int nr_discards; /* # of discards in the list */
408 unsigned int max_discards; /* max. discards to be issued */
409 unsigned int max_discard_request; /* max. discard request per round */
410 unsigned int min_discard_issue_time; /* min. interval between discard issue */
411 unsigned int mid_discard_issue_time; /* mid. interval between discard issue */
412 unsigned int max_discard_issue_time; /* max. interval between discard issue */
413 unsigned int discard_urgent_util; /* utilization which issue discard proactively */
414 unsigned int discard_granularity; /* discard granularity */
415 unsigned int max_ordered_discard; /* maximum discard granularity issued by lba order */
416 unsigned int undiscard_blks; /* # of undiscard blocks */
417 unsigned int next_pos; /* next discard position */
418 atomic_t issued_discard; /* # of issued discard */
419 atomic_t queued_discard; /* # of queued discard */
420 atomic_t discard_cmd_cnt; /* # of cached cmd count */
421 struct rb_root_cached root; /* root of discard rb-tree */
422 bool rbtree_check; /* config for consistence check */
425 /* for the list of fsync inodes, used only during recovery */
426 struct fsync_inode_entry {
427 struct list_head list; /* list head */
428 struct inode *inode; /* vfs inode pointer */
429 block_t blkaddr; /* block address locating the last fsync */
430 block_t last_dentry; /* block address locating the last dentry */
433 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
434 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
436 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
437 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
438 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
439 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
441 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
442 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
444 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
446 int before = nats_in_cursum(journal);
448 journal->n_nats = cpu_to_le16(before + i);
452 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
454 int before = sits_in_cursum(journal);
456 journal->n_sits = cpu_to_le16(before + i);
460 static inline bool __has_cursum_space(struct f2fs_journal *journal,
463 if (type == NAT_JOURNAL)
464 return size <= MAX_NAT_JENTRIES(journal);
465 return size <= MAX_SIT_JENTRIES(journal);
468 /* for inline stuff */
469 #define DEF_INLINE_RESERVED_SIZE 1
470 static inline int get_extra_isize(struct inode *inode);
471 static inline int get_inline_xattr_addrs(struct inode *inode);
472 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
473 (CUR_ADDRS_PER_INODE(inode) - \
474 get_inline_xattr_addrs(inode) - \
475 DEF_INLINE_RESERVED_SIZE))
478 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
479 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
481 #define INLINE_DENTRY_BITMAP_SIZE(inode) \
482 DIV_ROUND_UP(NR_INLINE_DENTRY(inode), BITS_PER_BYTE)
483 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
484 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
485 NR_INLINE_DENTRY(inode) + \
486 INLINE_DENTRY_BITMAP_SIZE(inode)))
489 * For INODE and NODE manager
491 /* for directory operations */
493 struct f2fs_filename {
495 * The filename the user specified. This is NULL for some
496 * filesystem-internal operations, e.g. converting an inline directory
497 * to a non-inline one, or roll-forward recovering an encrypted dentry.
499 const struct qstr *usr_fname;
502 * The on-disk filename. For encrypted directories, this is encrypted.
503 * This may be NULL for lookups in an encrypted dir without the key.
505 struct fscrypt_str disk_name;
507 /* The dirhash of this filename */
510 #ifdef CONFIG_FS_ENCRYPTION
512 * For lookups in encrypted directories: either the buffer backing
513 * disk_name, or a buffer that holds the decoded no-key name.
515 struct fscrypt_str crypto_buf;
517 #if IS_ENABLED(CONFIG_UNICODE)
519 * For casefolded directories: the casefolded name, but it's left NULL
520 * if the original name is not valid Unicode, if the original name is
521 * "." or "..", if the directory is both casefolded and encrypted and
522 * its encryption key is unavailable, or if the filesystem is doing an
523 * internal operation where usr_fname is also NULL. In all these cases
524 * we fall back to treating the name as an opaque byte sequence.
526 struct fscrypt_str cf_name;
530 struct f2fs_dentry_ptr {
533 struct f2fs_dir_entry *dentry;
534 __u8 (*filename)[F2FS_SLOT_LEN];
539 static inline void make_dentry_ptr_block(struct inode *inode,
540 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
543 d->max = NR_DENTRY_IN_BLOCK;
544 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
545 d->bitmap = t->dentry_bitmap;
546 d->dentry = t->dentry;
547 d->filename = t->filename;
550 static inline void make_dentry_ptr_inline(struct inode *inode,
551 struct f2fs_dentry_ptr *d, void *t)
553 int entry_cnt = NR_INLINE_DENTRY(inode);
554 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
555 int reserved_size = INLINE_RESERVED_SIZE(inode);
559 d->nr_bitmap = bitmap_size;
561 d->dentry = t + bitmap_size + reserved_size;
562 d->filename = t + bitmap_size + reserved_size +
563 SIZE_OF_DIR_ENTRY * entry_cnt;
567 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
568 * as its node offset to distinguish from index node blocks.
569 * But some bits are used to mark the node block.
571 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
574 ALLOC_NODE, /* allocate a new node page if needed */
575 LOOKUP_NODE, /* look up a node without readahead */
577 * look up a node with readahead called
582 #define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
584 /* congestion wait timeout value, default: 20ms */
585 #define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
587 /* maximum retry quota flush count */
588 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT 8
590 /* maximum retry of EIO'ed page */
591 #define MAX_RETRY_PAGE_EIO 100
593 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
595 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
597 /* dirty segments threshold for triggering CP */
598 #define DEFAULT_DIRTY_THRESHOLD 4
600 #define RECOVERY_MAX_RA_BLOCKS BIO_MAX_VECS
601 #define RECOVERY_MIN_RA_BLOCKS 1
603 #define F2FS_ONSTACK_PAGES 16 /* nr of onstack pages */
605 /* for in-memory extent cache entry */
606 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
608 /* number of extent info in extent cache we try to shrink */
609 #define READ_EXTENT_CACHE_SHRINK_NUMBER 128
611 /* number of age extent info in extent cache we try to shrink */
612 #define AGE_EXTENT_CACHE_SHRINK_NUMBER 128
613 #define LAST_AGE_WEIGHT 30
614 #define SAME_AGE_REGION 1024
617 * Define data block with age less than 1GB as hot data
618 * define data block with age less than 10GB but more than 1GB as warm data
620 #define DEF_HOT_DATA_AGE_THRESHOLD 262144
621 #define DEF_WARM_DATA_AGE_THRESHOLD 2621440
623 /* extent cache type */
631 struct rb_node rb_node; /* rb node located in rb-tree */
634 unsigned int ofs; /* start offset of the entry */
635 unsigned int len; /* length of the entry */
637 unsigned long long key; /* 64-bits key */
642 unsigned int fofs; /* start offset in a file */
643 unsigned int len; /* length of the extent */
645 /* read extent_cache */
647 /* start block address of the extent */
649 #ifdef CONFIG_F2FS_FS_COMPRESSION
650 /* physical extent length of compressed blocks */
654 /* block age extent_cache */
656 /* block age of the extent */
657 unsigned long long age;
658 /* last total blocks allocated */
659 unsigned long long last_blocks;
665 struct rb_node rb_node; /* rb node located in rb-tree */
666 struct extent_info ei; /* extent info */
667 struct list_head list; /* node in global extent list of sbi */
668 struct extent_tree *et; /* extent tree pointer */
672 nid_t ino; /* inode number */
673 enum extent_type type; /* keep the extent tree type */
674 struct rb_root_cached root; /* root of extent info rb-tree */
675 struct extent_node *cached_en; /* recently accessed extent node */
676 struct list_head list; /* to be used by sbi->zombie_list */
677 rwlock_t lock; /* protect extent info rb-tree */
678 atomic_t node_cnt; /* # of extent node in rb-tree*/
679 bool largest_updated; /* largest extent updated */
680 struct extent_info largest; /* largest cached extent for EX_READ */
683 struct extent_tree_info {
684 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
685 struct mutex extent_tree_lock; /* locking extent radix tree */
686 struct list_head extent_list; /* lru list for shrinker */
687 spinlock_t extent_lock; /* locking extent lru list */
688 atomic_t total_ext_tree; /* extent tree count */
689 struct list_head zombie_list; /* extent zombie tree list */
690 atomic_t total_zombie_tree; /* extent zombie tree count */
691 atomic_t total_ext_node; /* extent info count */
695 * This structure is taken from ext4_map_blocks.
697 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
699 #define F2FS_MAP_NEW (1 << BH_New)
700 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
701 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
702 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
705 struct f2fs_map_blocks {
706 struct block_device *m_bdev; /* for multi-device dio */
710 unsigned int m_flags;
711 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
712 pgoff_t *m_next_extent; /* point to next possible extent */
714 bool m_may_create; /* indicate it is from write path */
715 bool m_multidev_dio; /* indicate it allows multi-device dio */
718 /* for flag in get_data_block */
720 F2FS_GET_BLOCK_DEFAULT,
721 F2FS_GET_BLOCK_FIEMAP,
724 F2FS_GET_BLOCK_PRE_DIO,
725 F2FS_GET_BLOCK_PRE_AIO,
726 F2FS_GET_BLOCK_PRECACHE,
730 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
732 #define FADVISE_COLD_BIT 0x01
733 #define FADVISE_LOST_PINO_BIT 0x02
734 #define FADVISE_ENCRYPT_BIT 0x04
735 #define FADVISE_ENC_NAME_BIT 0x08
736 #define FADVISE_KEEP_SIZE_BIT 0x10
737 #define FADVISE_HOT_BIT 0x20
738 #define FADVISE_VERITY_BIT 0x40
739 #define FADVISE_TRUNC_BIT 0x80
741 #define FADVISE_MODIFIABLE_BITS (FADVISE_COLD_BIT | FADVISE_HOT_BIT)
743 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
744 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
745 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
747 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
748 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
749 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
751 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
752 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
754 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
755 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
757 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
758 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
760 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
761 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
762 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
764 #define file_is_verity(inode) is_file(inode, FADVISE_VERITY_BIT)
765 #define file_set_verity(inode) set_file(inode, FADVISE_VERITY_BIT)
767 #define file_should_truncate(inode) is_file(inode, FADVISE_TRUNC_BIT)
768 #define file_need_truncate(inode) set_file(inode, FADVISE_TRUNC_BIT)
769 #define file_dont_truncate(inode) clear_file(inode, FADVISE_TRUNC_BIT)
771 #define DEF_DIR_LEVEL 0
778 /* used for f2fs_inode_info->flags */
780 FI_NEW_INODE, /* indicate newly allocated inode */
781 FI_DIRTY_INODE, /* indicate inode is dirty or not */
782 FI_AUTO_RECOVER, /* indicate inode is recoverable */
783 FI_DIRTY_DIR, /* indicate directory has dirty pages */
784 FI_INC_LINK, /* need to increment i_nlink */
785 FI_ACL_MODE, /* indicate acl mode */
786 FI_NO_ALLOC, /* should not allocate any blocks */
787 FI_FREE_NID, /* free allocated nide */
788 FI_NO_EXTENT, /* not to use the extent cache */
789 FI_INLINE_XATTR, /* used for inline xattr */
790 FI_INLINE_DATA, /* used for inline data*/
791 FI_INLINE_DENTRY, /* used for inline dentry */
792 FI_APPEND_WRITE, /* inode has appended data */
793 FI_UPDATE_WRITE, /* inode has in-place-update data */
794 FI_NEED_IPU, /* used for ipu per file */
795 FI_ATOMIC_FILE, /* indicate atomic file */
796 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
797 FI_DROP_CACHE, /* drop dirty page cache */
798 FI_DATA_EXIST, /* indicate data exists */
799 FI_INLINE_DOTS, /* indicate inline dot dentries */
800 FI_SKIP_WRITES, /* should skip data page writeback */
801 FI_OPU_WRITE, /* used for opu per file */
802 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
803 FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
804 FI_HOT_DATA, /* indicate file is hot */
805 FI_EXTRA_ATTR, /* indicate file has extra attribute */
806 FI_PROJ_INHERIT, /* indicate file inherits projectid */
807 FI_PIN_FILE, /* indicate file should not be gced */
808 FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
809 FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
810 FI_COMPRESS_CORRUPT, /* indicate compressed cluster is corrupted */
811 FI_MMAP_FILE, /* indicate file was mmapped */
812 FI_ENABLE_COMPRESS, /* enable compression in "user" compression mode */
813 FI_COMPRESS_RELEASED, /* compressed blocks were released */
814 FI_ALIGNED_WRITE, /* enable aligned write */
815 FI_COW_FILE, /* indicate COW file */
816 FI_ATOMIC_COMMITTED, /* indicate atomic commit completed except disk sync */
817 FI_ATOMIC_REPLACE, /* indicate atomic replace */
818 FI_MAX, /* max flag, never be used */
821 struct f2fs_inode_info {
822 struct inode vfs_inode; /* serve a vfs inode */
823 unsigned long i_flags; /* keep an inode flags for ioctl */
824 unsigned char i_advise; /* use to give file attribute hints */
825 unsigned char i_dir_level; /* use for dentry level for large dir */
826 unsigned int i_current_depth; /* only for directory depth */
827 /* for gc failure statistic */
828 unsigned int i_gc_failures[MAX_GC_FAILURE];
829 unsigned int i_pino; /* parent inode number */
830 umode_t i_acl_mode; /* keep file acl mode temporarily */
832 /* Use below internally in f2fs*/
833 unsigned long flags[BITS_TO_LONGS(FI_MAX)]; /* use to pass per-file flags */
834 struct f2fs_rwsem i_sem; /* protect fi info */
835 atomic_t dirty_pages; /* # of dirty pages */
836 f2fs_hash_t chash; /* hash value of given file name */
837 unsigned int clevel; /* maximum level of given file name */
838 struct task_struct *task; /* lookup and create consistency */
839 struct task_struct *cp_task; /* separate cp/wb IO stats*/
840 struct task_struct *wb_task; /* indicate inode is in context of writeback */
841 nid_t i_xattr_nid; /* node id that contains xattrs */
842 loff_t last_disk_size; /* lastly written file size */
843 spinlock_t i_size_lock; /* protect last_disk_size */
846 struct dquot *i_dquot[MAXQUOTAS];
848 /* quota space reservation, managed internally by quota code */
849 qsize_t i_reserved_quota;
851 struct list_head dirty_list; /* dirty list for dirs and files */
852 struct list_head gdirty_list; /* linked in global dirty list */
853 struct task_struct *atomic_write_task; /* store atomic write task */
854 struct extent_tree *extent_tree[NR_EXTENT_CACHES];
855 /* cached extent_tree entry */
856 struct inode *cow_inode; /* copy-on-write inode for atomic write */
858 /* avoid racing between foreground op and gc */
859 struct f2fs_rwsem i_gc_rwsem[2];
860 struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
862 int i_extra_isize; /* size of extra space located in i_addr */
863 kprojid_t i_projid; /* id for project quota */
864 int i_inline_xattr_size; /* inline xattr size */
865 struct timespec64 i_crtime; /* inode creation time */
866 struct timespec64 i_disk_time[4];/* inode disk times */
868 /* for file compress */
869 atomic_t i_compr_blocks; /* # of compressed blocks */
870 unsigned char i_compress_algorithm; /* algorithm type */
871 unsigned char i_log_cluster_size; /* log of cluster size */
872 unsigned char i_compress_level; /* compress level (lz4hc,zstd) */
873 unsigned short i_compress_flag; /* compress flag */
874 unsigned int i_cluster_size; /* cluster size */
876 unsigned int atomic_write_cnt;
877 loff_t original_i_size; /* original i_size before atomic write */
880 static inline void get_read_extent_info(struct extent_info *ext,
881 struct f2fs_extent *i_ext)
883 ext->fofs = le32_to_cpu(i_ext->fofs);
884 ext->blk = le32_to_cpu(i_ext->blk);
885 ext->len = le32_to_cpu(i_ext->len);
888 static inline void set_raw_read_extent(struct extent_info *ext,
889 struct f2fs_extent *i_ext)
891 i_ext->fofs = cpu_to_le32(ext->fofs);
892 i_ext->blk = cpu_to_le32(ext->blk);
893 i_ext->len = cpu_to_le32(ext->len);
896 static inline bool __is_discard_mergeable(struct discard_info *back,
897 struct discard_info *front, unsigned int max_len)
899 return (back->lstart + back->len == front->lstart) &&
900 (back->len + front->len <= max_len);
903 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
904 struct discard_info *back, unsigned int max_len)
906 return __is_discard_mergeable(back, cur, max_len);
909 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
910 struct discard_info *front, unsigned int max_len)
912 return __is_discard_mergeable(cur, front, max_len);
916 * For free nid management
919 FREE_NID, /* newly added to free nid list */
920 PREALLOC_NID, /* it is preallocated */
931 struct f2fs_nm_info {
932 block_t nat_blkaddr; /* base disk address of NAT */
933 nid_t max_nid; /* maximum possible node ids */
934 nid_t available_nids; /* # of available node ids */
935 nid_t next_scan_nid; /* the next nid to be scanned */
936 nid_t max_rf_node_blocks; /* max # of nodes for recovery */
937 unsigned int ram_thresh; /* control the memory footprint */
938 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
939 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
941 /* NAT cache management */
942 struct radix_tree_root nat_root;/* root of the nat entry cache */
943 struct radix_tree_root nat_set_root;/* root of the nat set cache */
944 struct f2fs_rwsem nat_tree_lock; /* protect nat entry tree */
945 struct list_head nat_entries; /* cached nat entry list (clean) */
946 spinlock_t nat_list_lock; /* protect clean nat entry list */
947 unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
948 unsigned int nat_blocks; /* # of nat blocks */
950 /* free node ids management */
951 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
952 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
953 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
954 spinlock_t nid_list_lock; /* protect nid lists ops */
955 struct mutex build_lock; /* lock for build free nids */
956 unsigned char **free_nid_bitmap;
957 unsigned char *nat_block_bitmap;
958 unsigned short *free_nid_count; /* free nid count of NAT block */
961 char *nat_bitmap; /* NAT bitmap pointer */
963 unsigned int nat_bits_blocks; /* # of nat bits blocks */
964 unsigned char *nat_bits; /* NAT bits blocks */
965 unsigned char *full_nat_bits; /* full NAT pages */
966 unsigned char *empty_nat_bits; /* empty NAT pages */
967 #ifdef CONFIG_F2FS_CHECK_FS
968 char *nat_bitmap_mir; /* NAT bitmap mirror */
970 int bitmap_size; /* bitmap size */
974 * this structure is used as one of function parameters.
975 * all the information are dedicated to a given direct node block determined
976 * by the data offset in a file.
978 struct dnode_of_data {
979 struct inode *inode; /* vfs inode pointer */
980 struct page *inode_page; /* its inode page, NULL is possible */
981 struct page *node_page; /* cached direct node page */
982 nid_t nid; /* node id of the direct node block */
983 unsigned int ofs_in_node; /* data offset in the node page */
984 bool inode_page_locked; /* inode page is locked or not */
985 bool node_changed; /* is node block changed */
986 char cur_level; /* level of hole node page */
987 char max_level; /* level of current page located */
988 block_t data_blkaddr; /* block address of the node block */
991 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
992 struct page *ipage, struct page *npage, nid_t nid)
994 memset(dn, 0, sizeof(*dn));
996 dn->inode_page = ipage;
997 dn->node_page = npage;
1004 * By default, there are 6 active log areas across the whole main area.
1005 * When considering hot and cold data separation to reduce cleaning overhead,
1006 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
1008 * In the current design, you should not change the numbers intentionally.
1009 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
1010 * logs individually according to the underlying devices. (default: 6)
1011 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
1012 * data and 8 for node logs.
1014 #define NR_CURSEG_DATA_TYPE (3)
1015 #define NR_CURSEG_NODE_TYPE (3)
1016 #define NR_CURSEG_INMEM_TYPE (2)
1017 #define NR_CURSEG_RO_TYPE (2)
1018 #define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
1019 #define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
1022 CURSEG_HOT_DATA = 0, /* directory entry blocks */
1023 CURSEG_WARM_DATA, /* data blocks */
1024 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
1025 CURSEG_HOT_NODE, /* direct node blocks of directory files */
1026 CURSEG_WARM_NODE, /* direct node blocks of normal files */
1027 CURSEG_COLD_NODE, /* indirect node blocks */
1028 NR_PERSISTENT_LOG, /* number of persistent log */
1029 CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
1030 /* pinned file that needs consecutive block address */
1031 CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */
1032 NO_CHECK_TYPE, /* number of persistent & inmem log */
1036 struct completion wait;
1037 struct llist_node llnode;
1042 struct flush_cmd_control {
1043 struct task_struct *f2fs_issue_flush; /* flush thread */
1044 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
1045 atomic_t issued_flush; /* # of issued flushes */
1046 atomic_t queued_flush; /* # of queued flushes */
1047 struct llist_head issue_list; /* list for command issue */
1048 struct llist_node *dispatch_list; /* list for command dispatch */
1051 struct f2fs_sm_info {
1052 struct sit_info *sit_info; /* whole segment information */
1053 struct free_segmap_info *free_info; /* free segment information */
1054 struct dirty_seglist_info *dirty_info; /* dirty segment information */
1055 struct curseg_info *curseg_array; /* active segment information */
1057 struct f2fs_rwsem curseg_lock; /* for preventing curseg change */
1059 block_t seg0_blkaddr; /* block address of 0'th segment */
1060 block_t main_blkaddr; /* start block address of main area */
1061 block_t ssa_blkaddr; /* start block address of SSA area */
1063 unsigned int segment_count; /* total # of segments */
1064 unsigned int main_segments; /* # of segments in main area */
1065 unsigned int reserved_segments; /* # of reserved segments */
1066 unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
1067 unsigned int ovp_segments; /* # of overprovision segments */
1069 /* a threshold to reclaim prefree segments */
1070 unsigned int rec_prefree_segments;
1072 struct list_head sit_entry_set; /* sit entry set list */
1074 unsigned int ipu_policy; /* in-place-update policy */
1075 unsigned int min_ipu_util; /* in-place-update threshold */
1076 unsigned int min_fsync_blocks; /* threshold for fsync */
1077 unsigned int min_seq_blocks; /* threshold for sequential blocks */
1078 unsigned int min_hot_blocks; /* threshold for hot block allocation */
1079 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
1081 /* for flush command control */
1082 struct flush_cmd_control *fcc_info;
1084 /* for discard command control */
1085 struct discard_cmd_control *dcc_info;
1092 * COUNT_TYPE for monitoring
1094 * f2fs monitors the number of several block types such as on-writeback,
1095 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
1097 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
1116 * The below are the page types of bios used in submit_bio().
1117 * The available types are:
1118 * DATA User data pages. It operates as async mode.
1119 * NODE Node pages. It operates as async mode.
1120 * META FS metadata pages such as SIT, NAT, CP.
1121 * NR_PAGE_TYPE The number of page types.
1122 * META_FLUSH Make sure the previous pages are written
1123 * with waiting the bio's completion
1124 * ... Only can be used with META.
1126 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
1129 NODE = 1, /* should not change this */
1133 IPU, /* the below types are used by tracepoints only. */
1138 HOT = 0, /* must be zero for meta bio */
1144 enum need_lock_type {
1150 enum cp_reason_type {
1166 APP_DIRECT_IO, /* app direct write IOs */
1167 APP_BUFFERED_IO, /* app buffered write IOs */
1168 APP_WRITE_IO, /* app write IOs */
1169 APP_MAPPED_IO, /* app mapped IOs */
1170 APP_BUFFERED_CDATA_IO, /* app buffered write IOs on compressed file */
1171 APP_MAPPED_CDATA_IO, /* app mapped write IOs on compressed file */
1172 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
1173 FS_CDATA_IO, /* data IOs from kworker/fsync/reclaimer on compressed file */
1174 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
1175 FS_META_IO, /* meta IOs from kworker/reclaimer */
1176 FS_GC_DATA_IO, /* data IOs from forground gc */
1177 FS_GC_NODE_IO, /* node IOs from forground gc */
1178 FS_CP_DATA_IO, /* data IOs from checkpoint */
1179 FS_CP_NODE_IO, /* node IOs from checkpoint */
1180 FS_CP_META_IO, /* meta IOs from checkpoint */
1183 APP_DIRECT_READ_IO, /* app direct read IOs */
1184 APP_BUFFERED_READ_IO, /* app buffered read IOs */
1185 APP_READ_IO, /* app read IOs */
1186 APP_MAPPED_READ_IO, /* app mapped read IOs */
1187 APP_BUFFERED_CDATA_READ_IO, /* app buffered read IOs on compressed file */
1188 APP_MAPPED_CDATA_READ_IO, /* app mapped read IOs on compressed file */
1189 FS_DATA_READ_IO, /* data read IOs */
1190 FS_GDATA_READ_IO, /* data read IOs from background gc */
1191 FS_CDATA_READ_IO, /* compressed data read IOs */
1192 FS_NODE_READ_IO, /* node read IOs */
1193 FS_META_READ_IO, /* meta read IOs */
1196 FS_DISCARD, /* discard */
1200 struct f2fs_io_info {
1201 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1202 nid_t ino; /* inode number */
1203 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1204 enum temp_type temp; /* contains HOT/WARM/COLD */
1205 enum req_op op; /* contains REQ_OP_ */
1206 blk_opf_t op_flags; /* req_flag_bits */
1207 block_t new_blkaddr; /* new block address to be written */
1208 block_t old_blkaddr; /* old block address before Cow */
1209 struct page *page; /* page to be written */
1210 struct page *encrypted_page; /* encrypted page */
1211 struct page *compressed_page; /* compressed page */
1212 struct list_head list; /* serialize IOs */
1213 bool submitted; /* indicate IO submission */
1214 int need_lock; /* indicate we need to lock cp_rwsem */
1215 bool in_list; /* indicate fio is in io_list */
1216 bool is_por; /* indicate IO is from recovery or not */
1217 bool retry; /* need to reallocate block address */
1218 int compr_blocks; /* # of compressed block addresses */
1219 bool encrypted; /* indicate file is encrypted */
1220 bool post_read; /* require post read */
1221 enum iostat_type io_type; /* io type */
1222 struct writeback_control *io_wbc; /* writeback control */
1223 struct bio **bio; /* bio for ipu */
1224 sector_t *last_block; /* last block number in bio */
1225 unsigned char version; /* version of the node */
1230 struct list_head list;
1233 #define is_read_io(rw) ((rw) == READ)
1234 struct f2fs_bio_info {
1235 struct f2fs_sb_info *sbi; /* f2fs superblock */
1236 struct bio *bio; /* bios to merge */
1237 sector_t last_block_in_bio; /* last block number */
1238 struct f2fs_io_info fio; /* store buffered io info. */
1239 struct f2fs_rwsem io_rwsem; /* blocking op for bio */
1240 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1241 struct list_head io_list; /* track fios */
1242 struct list_head bio_list; /* bio entry list head */
1243 struct f2fs_rwsem bio_list_lock; /* lock to protect bio entry list */
1246 #define FDEV(i) (sbi->devs[i])
1247 #define RDEV(i) (raw_super->devs[i])
1248 struct f2fs_dev_info {
1249 struct block_device *bdev;
1250 char path[MAX_PATH_LEN];
1251 unsigned int total_segments;
1254 #ifdef CONFIG_BLK_DEV_ZONED
1255 unsigned int nr_blkz; /* Total number of zones */
1256 unsigned long *blkz_seq; /* Bitmap indicating sequential zones */
1261 DIR_INODE, /* for dirty dir inode */
1262 FILE_INODE, /* for dirty regular/symlink inode */
1263 DIRTY_META, /* for all dirtied inode metadata */
1267 /* for inner inode cache management */
1268 struct inode_management {
1269 struct radix_tree_root ino_root; /* ino entry array */
1270 spinlock_t ino_lock; /* for ino entry lock */
1271 struct list_head ino_list; /* inode list head */
1272 unsigned long ino_num; /* number of entries */
1276 struct atgc_management {
1277 bool atgc_enabled; /* ATGC is enabled or not */
1278 struct rb_root_cached root; /* root of victim rb-tree */
1279 struct list_head victim_list; /* linked with all victim entries */
1280 unsigned int victim_count; /* victim count in rb-tree */
1281 unsigned int candidate_ratio; /* candidate ratio */
1282 unsigned int max_candidate_count; /* max candidate count */
1283 unsigned int age_weight; /* age weight, vblock_weight = 100 - age_weight */
1284 unsigned long long age_threshold; /* age threshold */
1287 struct f2fs_gc_control {
1288 unsigned int victim_segno; /* target victim segment number */
1289 int init_gc_type; /* FG_GC or BG_GC */
1290 bool no_bg_gc; /* check the space and stop bg_gc */
1291 bool should_migrate_blocks; /* should migrate blocks */
1292 bool err_gc_skipped; /* return EAGAIN if GC skipped */
1293 unsigned int nr_free_secs; /* # of free sections to do GC */
1296 /* For s_flag in struct f2fs_sb_info */
1298 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1299 SBI_IS_CLOSE, /* specify unmounting */
1300 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1301 SBI_POR_DOING, /* recovery is doing or not */
1302 SBI_NEED_SB_WRITE, /* need to recover superblock */
1303 SBI_NEED_CP, /* need to checkpoint */
1304 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1305 SBI_IS_RECOVERED, /* recovered orphan/data */
1306 SBI_CP_DISABLED, /* CP was disabled last mount */
1307 SBI_CP_DISABLED_QUICK, /* CP was disabled quickly */
1308 SBI_QUOTA_NEED_FLUSH, /* need to flush quota info in CP */
1309 SBI_QUOTA_SKIP_FLUSH, /* skip flushing quota in current CP */
1310 SBI_QUOTA_NEED_REPAIR, /* quota file may be corrupted */
1311 SBI_IS_RESIZEFS, /* resizefs is in process */
1312 SBI_IS_FREEZING, /* freezefs is in process */
1321 UMOUNT_DISCARD_TIMEOUT,
1325 /* Note that you need to keep synchronization with this gc_mode_names array */
1338 BGGC_MODE_ON, /* background gc is on */
1339 BGGC_MODE_OFF, /* background gc is off */
1341 * background gc is on, migrating blocks
1342 * like foreground gc
1347 FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */
1348 FS_MODE_LFS, /* use lfs allocation only */
1349 FS_MODE_FRAGMENT_SEG, /* segment fragmentation mode */
1350 FS_MODE_FRAGMENT_BLK, /* block fragmentation mode */
1354 ALLOC_MODE_DEFAULT, /* stay default */
1355 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1359 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1360 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1361 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1366 * automatically compress compression
1370 * automatical compression is disabled.
1371 * user can control the file compression
1377 DISCARD_UNIT_BLOCK, /* basic discard unit is block */
1378 DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
1379 DISCARD_UNIT_SECTION, /* basic discard unit is section */
1383 MEMORY_MODE_NORMAL, /* memory mode for normal devices */
1384 MEMORY_MODE_LOW, /* memory mode for low memry devices */
1389 static inline int f2fs_test_bit(unsigned int nr, char *addr);
1390 static inline void f2fs_set_bit(unsigned int nr, char *addr);
1391 static inline void f2fs_clear_bit(unsigned int nr, char *addr);
1394 * Layout of f2fs page.private:
1396 * Layout A: lowest bit should be 1
1397 * | bit0 = 1 | bit1 | bit2 | ... | bit MAX | private data .... |
1398 * bit 0 PAGE_PRIVATE_NOT_POINTER
1399 * bit 1 PAGE_PRIVATE_ATOMIC_WRITE
1400 * bit 2 PAGE_PRIVATE_DUMMY_WRITE
1401 * bit 3 PAGE_PRIVATE_ONGOING_MIGRATION
1402 * bit 4 PAGE_PRIVATE_INLINE_INODE
1403 * bit 5 PAGE_PRIVATE_REF_RESOURCE
1404 * bit 6- f2fs private data
1406 * Layout B: lowest bit should be 0
1407 * page.private is a wrapped pointer.
1410 PAGE_PRIVATE_NOT_POINTER, /* private contains non-pointer data */
1411 PAGE_PRIVATE_ATOMIC_WRITE, /* data page from atomic write path */
1412 PAGE_PRIVATE_DUMMY_WRITE, /* data page for padding aligned IO */
1413 PAGE_PRIVATE_ONGOING_MIGRATION, /* data page which is on-going migrating */
1414 PAGE_PRIVATE_INLINE_INODE, /* inode page contains inline data */
1415 PAGE_PRIVATE_REF_RESOURCE, /* dirty page has referenced resources */
1419 #define PAGE_PRIVATE_GET_FUNC(name, flagname) \
1420 static inline bool page_private_##name(struct page *page) \
1422 return PagePrivate(page) && \
1423 test_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)) && \
1424 test_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1427 #define PAGE_PRIVATE_SET_FUNC(name, flagname) \
1428 static inline void set_page_private_##name(struct page *page) \
1430 if (!PagePrivate(page)) { \
1432 SetPagePrivate(page); \
1433 set_page_private(page, 0); \
1435 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page)); \
1436 set_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1439 #define PAGE_PRIVATE_CLEAR_FUNC(name, flagname) \
1440 static inline void clear_page_private_##name(struct page *page) \
1442 clear_bit(PAGE_PRIVATE_##flagname, &page_private(page)); \
1443 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) { \
1444 set_page_private(page, 0); \
1445 if (PagePrivate(page)) { \
1446 ClearPagePrivate(page); \
1452 PAGE_PRIVATE_GET_FUNC(nonpointer, NOT_POINTER);
1453 PAGE_PRIVATE_GET_FUNC(reference, REF_RESOURCE);
1454 PAGE_PRIVATE_GET_FUNC(inline, INLINE_INODE);
1455 PAGE_PRIVATE_GET_FUNC(gcing, ONGOING_MIGRATION);
1456 PAGE_PRIVATE_GET_FUNC(atomic, ATOMIC_WRITE);
1457 PAGE_PRIVATE_GET_FUNC(dummy, DUMMY_WRITE);
1459 PAGE_PRIVATE_SET_FUNC(reference, REF_RESOURCE);
1460 PAGE_PRIVATE_SET_FUNC(inline, INLINE_INODE);
1461 PAGE_PRIVATE_SET_FUNC(gcing, ONGOING_MIGRATION);
1462 PAGE_PRIVATE_SET_FUNC(atomic, ATOMIC_WRITE);
1463 PAGE_PRIVATE_SET_FUNC(dummy, DUMMY_WRITE);
1465 PAGE_PRIVATE_CLEAR_FUNC(reference, REF_RESOURCE);
1466 PAGE_PRIVATE_CLEAR_FUNC(inline, INLINE_INODE);
1467 PAGE_PRIVATE_CLEAR_FUNC(gcing, ONGOING_MIGRATION);
1468 PAGE_PRIVATE_CLEAR_FUNC(atomic, ATOMIC_WRITE);
1469 PAGE_PRIVATE_CLEAR_FUNC(dummy, DUMMY_WRITE);
1471 static inline unsigned long get_page_private_data(struct page *page)
1473 unsigned long data = page_private(page);
1475 if (!test_bit(PAGE_PRIVATE_NOT_POINTER, &data))
1477 return data >> PAGE_PRIVATE_MAX;
1480 static inline void set_page_private_data(struct page *page, unsigned long data)
1482 if (!PagePrivate(page)) {
1484 SetPagePrivate(page);
1485 set_page_private(page, 0);
1487 set_bit(PAGE_PRIVATE_NOT_POINTER, &page_private(page));
1488 page_private(page) |= data << PAGE_PRIVATE_MAX;
1491 static inline void clear_page_private_data(struct page *page)
1493 page_private(page) &= (1 << PAGE_PRIVATE_MAX) - 1;
1494 if (page_private(page) == 1 << PAGE_PRIVATE_NOT_POINTER) {
1495 set_page_private(page, 0);
1496 if (PagePrivate(page)) {
1497 ClearPagePrivate(page);
1503 /* For compression */
1504 enum compress_algorithm_type {
1512 enum compress_flag {
1517 #define COMPRESS_WATERMARK 20
1518 #define COMPRESS_PERCENT 20
1520 #define COMPRESS_DATA_RESERVED_SIZE 4
1521 struct compress_data {
1522 __le32 clen; /* compressed data size */
1523 __le32 chksum; /* compressed data chksum */
1524 __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
1525 u8 cdata[]; /* compressed data */
1528 #define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
1530 #define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
1532 #define COMPRESS_LEVEL_OFFSET 8
1534 /* compress context */
1535 struct compress_ctx {
1536 struct inode *inode; /* inode the context belong to */
1537 pgoff_t cluster_idx; /* cluster index number */
1538 unsigned int cluster_size; /* page count in cluster */
1539 unsigned int log_cluster_size; /* log of cluster size */
1540 struct page **rpages; /* pages store raw data in cluster */
1541 unsigned int nr_rpages; /* total page number in rpages */
1542 struct page **cpages; /* pages store compressed data in cluster */
1543 unsigned int nr_cpages; /* total page number in cpages */
1544 unsigned int valid_nr_cpages; /* valid page number in cpages */
1545 void *rbuf; /* virtual mapped address on rpages */
1546 struct compress_data *cbuf; /* virtual mapped address on cpages */
1547 size_t rlen; /* valid data length in rbuf */
1548 size_t clen; /* valid data length in cbuf */
1549 void *private; /* payload buffer for specified compression algorithm */
1550 void *private2; /* extra payload buffer */
1553 /* compress context for write IO path */
1554 struct compress_io_ctx {
1555 u32 magic; /* magic number to indicate page is compressed */
1556 struct inode *inode; /* inode the context belong to */
1557 struct page **rpages; /* pages store raw data in cluster */
1558 unsigned int nr_rpages; /* total page number in rpages */
1559 atomic_t pending_pages; /* in-flight compressed page count */
1562 /* Context for decompressing one cluster on the read IO path */
1563 struct decompress_io_ctx {
1564 u32 magic; /* magic number to indicate page is compressed */
1565 struct inode *inode; /* inode the context belong to */
1566 pgoff_t cluster_idx; /* cluster index number */
1567 unsigned int cluster_size; /* page count in cluster */
1568 unsigned int log_cluster_size; /* log of cluster size */
1569 struct page **rpages; /* pages store raw data in cluster */
1570 unsigned int nr_rpages; /* total page number in rpages */
1571 struct page **cpages; /* pages store compressed data in cluster */
1572 unsigned int nr_cpages; /* total page number in cpages */
1573 struct page **tpages; /* temp pages to pad holes in cluster */
1574 void *rbuf; /* virtual mapped address on rpages */
1575 struct compress_data *cbuf; /* virtual mapped address on cpages */
1576 size_t rlen; /* valid data length in rbuf */
1577 size_t clen; /* valid data length in cbuf */
1580 * The number of compressed pages remaining to be read in this cluster.
1581 * This is initially nr_cpages. It is decremented by 1 each time a page
1582 * has been read (or failed to be read). When it reaches 0, the cluster
1583 * is decompressed (or an error is reported).
1585 * If an error occurs before all the pages have been submitted for I/O,
1586 * then this will never reach 0. In this case the I/O submitter is
1587 * responsible for calling f2fs_decompress_end_io() instead.
1589 atomic_t remaining_pages;
1592 * Number of references to this decompress_io_ctx.
1594 * One reference is held for I/O completion. This reference is dropped
1595 * after the pagecache pages are updated and unlocked -- either after
1596 * decompression (and verity if enabled), or after an error.
1598 * In addition, each compressed page holds a reference while it is in a
1599 * bio. These references are necessary prevent compressed pages from
1600 * being freed while they are still in a bio.
1604 bool failed; /* IO error occurred before decompression? */
1605 bool need_verity; /* need fs-verity verification after decompression? */
1606 void *private; /* payload buffer for specified decompression algorithm */
1607 void *private2; /* extra payload buffer */
1608 struct work_struct verity_work; /* work to verify the decompressed pages */
1609 struct work_struct free_work; /* work for late free this structure itself */
1612 #define NULL_CLUSTER ((unsigned int)(~0))
1613 #define MIN_COMPRESS_LOG_SIZE 2
1614 #define MAX_COMPRESS_LOG_SIZE 8
1615 #define MAX_COMPRESS_WINDOW_SIZE(log_size) ((PAGE_SIZE) << (log_size))
1617 struct f2fs_sb_info {
1618 struct super_block *sb; /* pointer to VFS super block */
1619 struct proc_dir_entry *s_proc; /* proc entry */
1620 struct f2fs_super_block *raw_super; /* raw super block pointer */
1621 struct f2fs_rwsem sb_lock; /* lock for raw super block */
1622 int valid_super_block; /* valid super block no */
1623 unsigned long s_flag; /* flags for sbi */
1624 struct mutex writepages; /* mutex for writepages() */
1626 #ifdef CONFIG_BLK_DEV_ZONED
1627 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1628 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1631 /* for node-related operations */
1632 struct f2fs_nm_info *nm_info; /* node manager */
1633 struct inode *node_inode; /* cache node blocks */
1635 /* for segment-related operations */
1636 struct f2fs_sm_info *sm_info; /* segment manager */
1638 /* for bio operations */
1639 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1640 /* keep migration IO order for LFS mode */
1641 struct f2fs_rwsem io_order_lock;
1642 mempool_t *write_io_dummy; /* Dummy pages */
1643 pgoff_t page_eio_ofs[NR_PAGE_TYPE]; /* EIO page offset */
1644 int page_eio_cnt[NR_PAGE_TYPE]; /* EIO count */
1646 /* for checkpoint */
1647 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1648 int cur_cp_pack; /* remain current cp pack */
1649 spinlock_t cp_lock; /* for flag in ckpt */
1650 struct inode *meta_inode; /* cache meta blocks */
1651 struct f2fs_rwsem cp_global_sem; /* checkpoint procedure lock */
1652 struct f2fs_rwsem cp_rwsem; /* blocking FS operations */
1653 struct f2fs_rwsem node_write; /* locking node writes */
1654 struct f2fs_rwsem node_change; /* locking node change */
1655 wait_queue_head_t cp_wait;
1656 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1657 long interval_time[MAX_TIME]; /* to store thresholds */
1658 struct ckpt_req_control cprc_info; /* for checkpoint request control */
1660 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1662 spinlock_t fsync_node_lock; /* for node entry lock */
1663 struct list_head fsync_node_list; /* node list head */
1664 unsigned int fsync_seg_id; /* sequence id */
1665 unsigned int fsync_node_num; /* number of node entries */
1667 /* for orphan inode, use 0'th array */
1668 unsigned int max_orphans; /* max orphan inodes */
1670 /* for inode management */
1671 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1672 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1673 struct mutex flush_lock; /* for flush exclusion */
1675 /* for extent tree cache */
1676 struct extent_tree_info extent_tree[NR_EXTENT_CACHES];
1677 atomic64_t allocated_data_blocks; /* for block age extent_cache */
1679 /* The threshold used for hot and warm data seperation*/
1680 unsigned int hot_data_age_threshold;
1681 unsigned int warm_data_age_threshold;
1683 /* basic filesystem units */
1684 unsigned int log_sectors_per_block; /* log2 sectors per block */
1685 unsigned int log_blocksize; /* log2 block size */
1686 unsigned int blocksize; /* block size */
1687 unsigned int root_ino_num; /* root inode number*/
1688 unsigned int node_ino_num; /* node inode number*/
1689 unsigned int meta_ino_num; /* meta inode number*/
1690 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1691 unsigned int blocks_per_seg; /* blocks per segment */
1692 unsigned int unusable_blocks_per_sec; /* unusable blocks per section */
1693 unsigned int segs_per_sec; /* segments per section */
1694 unsigned int secs_per_zone; /* sections per zone */
1695 unsigned int total_sections; /* total section count */
1696 unsigned int total_node_count; /* total node block count */
1697 unsigned int total_valid_node_count; /* valid node block count */
1698 int dir_level; /* directory level */
1699 bool readdir_ra; /* readahead inode in readdir */
1700 u64 max_io_bytes; /* max io bytes to merge IOs */
1702 block_t user_block_count; /* # of user blocks */
1703 block_t total_valid_block_count; /* # of valid blocks */
1704 block_t discard_blks; /* discard command candidats */
1705 block_t last_valid_block_count; /* for recovery */
1706 block_t reserved_blocks; /* configurable reserved blocks */
1707 block_t current_reserved_blocks; /* current reserved blocks */
1709 /* Additional tracking for no checkpoint mode */
1710 block_t unusable_block_count; /* # of blocks saved by last cp */
1712 unsigned int nquota_files; /* # of quota sysfile */
1713 struct f2fs_rwsem quota_sem; /* blocking cp for flags */
1715 /* # of pages, see count_type */
1716 atomic_t nr_pages[NR_COUNT_TYPE];
1717 /* # of allocated blocks */
1718 struct percpu_counter alloc_valid_block_count;
1719 /* # of node block writes as roll forward recovery */
1720 struct percpu_counter rf_node_block_count;
1722 /* writeback control */
1723 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1725 /* valid inode count */
1726 struct percpu_counter total_valid_inode_count;
1728 struct f2fs_mount_info mount_opt; /* mount options */
1730 /* for cleaning operations */
1731 struct f2fs_rwsem gc_lock; /*
1732 * semaphore for GC, avoid
1733 * race between GC and GC or CP
1735 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1736 struct atgc_management am; /* atgc management */
1737 unsigned int cur_victim_sec; /* current victim section num */
1738 unsigned int gc_mode; /* current GC state */
1739 unsigned int next_victim_seg[2]; /* next segment in victim section */
1740 spinlock_t gc_remaining_trials_lock;
1741 /* remaining trial count for GC_URGENT_* and GC_IDLE_* */
1742 unsigned int gc_remaining_trials;
1744 /* for skip statistic */
1745 unsigned long long skipped_gc_rwsem; /* FG_GC only */
1747 /* threshold for gc trials on pinned files */
1748 u64 gc_pin_file_threshold;
1749 struct f2fs_rwsem pin_sem;
1751 /* maximum # of trials to find a victim segment for SSR and GC */
1752 unsigned int max_victim_search;
1753 /* migration granularity of garbage collection, unit: segment */
1754 unsigned int migration_granularity;
1757 * for stat information.
1758 * one is for the LFS mode, and the other is for the SSR mode.
1760 #ifdef CONFIG_F2FS_STAT_FS
1761 struct f2fs_stat_info *stat_info; /* FS status information */
1762 atomic_t meta_count[META_MAX]; /* # of meta blocks */
1763 unsigned int segment_count[2]; /* # of allocated segments */
1764 unsigned int block_count[2]; /* # of allocated blocks */
1765 atomic_t inplace_count; /* # of inplace update */
1766 /* # of lookup extent cache */
1767 atomic64_t total_hit_ext[NR_EXTENT_CACHES];
1768 /* # of hit rbtree extent node */
1769 atomic64_t read_hit_rbtree[NR_EXTENT_CACHES];
1770 /* # of hit cached extent node */
1771 atomic64_t read_hit_cached[NR_EXTENT_CACHES];
1772 /* # of hit largest extent node in read extent cache */
1773 atomic64_t read_hit_largest;
1774 atomic_t inline_xattr; /* # of inline_xattr inodes */
1775 atomic_t inline_inode; /* # of inline_data inodes */
1776 atomic_t inline_dir; /* # of inline_dentry inodes */
1777 atomic_t compr_inode; /* # of compressed inodes */
1778 atomic64_t compr_blocks; /* # of compressed blocks */
1779 atomic_t swapfile_inode; /* # of swapfile inodes */
1780 atomic_t atomic_files; /* # of opened atomic file */
1781 atomic_t max_aw_cnt; /* max # of atomic writes */
1782 unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
1783 unsigned int other_skip_bggc; /* skip background gc for other reasons */
1784 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1786 spinlock_t stat_lock; /* lock for stat operations */
1788 /* to attach REQ_META|REQ_FUA flags */
1789 unsigned int data_io_flag;
1790 unsigned int node_io_flag;
1792 /* For sysfs support */
1793 struct kobject s_kobj; /* /sys/fs/f2fs/<devname> */
1794 struct completion s_kobj_unregister;
1796 struct kobject s_stat_kobj; /* /sys/fs/f2fs/<devname>/stat */
1797 struct completion s_stat_kobj_unregister;
1799 struct kobject s_feature_list_kobj; /* /sys/fs/f2fs/<devname>/feature_list */
1800 struct completion s_feature_list_kobj_unregister;
1802 /* For shrinker support */
1803 struct list_head s_list;
1804 struct mutex umount_mutex;
1805 unsigned int shrinker_run_no;
1807 /* For multi devices */
1808 int s_ndevs; /* number of devices */
1809 struct f2fs_dev_info *devs; /* for device list */
1810 unsigned int dirty_device; /* for checkpoint data flush */
1811 spinlock_t dev_lock; /* protect dirty_device */
1812 bool aligned_blksize; /* all devices has the same logical blksize */
1814 /* For write statistics */
1815 u64 sectors_written_start;
1818 /* Reference to checksum algorithm driver via cryptoapi */
1819 struct crypto_shash *s_chksum_driver;
1821 /* Precomputed FS UUID checksum for seeding other checksums */
1822 __u32 s_chksum_seed;
1824 struct workqueue_struct *post_read_wq; /* post read workqueue */
1826 unsigned char errors[MAX_F2FS_ERRORS]; /* error flags */
1827 spinlock_t error_lock; /* protect errors array */
1828 bool error_dirty; /* errors of sb is dirty */
1830 struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
1831 unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
1833 /* For reclaimed segs statistics per each GC mode */
1834 unsigned int gc_segment_mode; /* GC state for reclaimed segments */
1835 unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
1837 unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
1839 int max_fragment_chunk; /* max chunk size for block fragmentation mode */
1840 int max_fragment_hole; /* max hole size for block fragmentation mode */
1842 /* For atomic write statistics */
1843 atomic64_t current_atomic_write;
1844 s64 peak_atomic_write;
1845 u64 committed_atomic_block;
1846 u64 revoked_atomic_block;
1848 #ifdef CONFIG_F2FS_FS_COMPRESSION
1849 struct kmem_cache *page_array_slab; /* page array entry */
1850 unsigned int page_array_slab_size; /* default page array slab size */
1852 /* For runtime compression statistics */
1853 u64 compr_written_block;
1854 u64 compr_saved_block;
1855 u32 compr_new_inode;
1857 /* For compressed block cache */
1858 struct inode *compress_inode; /* cache compressed blocks */
1859 unsigned int compress_percent; /* cache page percentage */
1860 unsigned int compress_watermark; /* cache page watermark */
1861 atomic_t compress_page_hit; /* cache hit count */
1864 #ifdef CONFIG_F2FS_IOSTAT
1865 /* For app/fs IO statistics */
1866 spinlock_t iostat_lock;
1867 unsigned long long rw_iostat[NR_IO_TYPE];
1868 unsigned long long prev_rw_iostat[NR_IO_TYPE];
1870 unsigned long iostat_next_period;
1871 unsigned int iostat_period_ms;
1873 /* For io latency related statistics info in one iostat period */
1874 spinlock_t iostat_lat_lock;
1875 struct iostat_lat_info *iostat_io_lat;
1879 #ifdef CONFIG_F2FS_FAULT_INJECTION
1880 #define f2fs_show_injection_info(sbi, type) \
1881 printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n", \
1882 KERN_INFO, sbi->sb->s_id, \
1883 f2fs_fault_name[type], \
1884 __func__, __builtin_return_address(0))
1885 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1887 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1889 if (!ffi->inject_rate)
1892 if (!IS_FAULT_SET(ffi, type))
1895 atomic_inc(&ffi->inject_ops);
1896 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1897 atomic_set(&ffi->inject_ops, 0);
1903 #define f2fs_show_injection_info(sbi, type) do { } while (0)
1904 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1911 * Test if the mounted volume is a multi-device volume.
1912 * - For a single regular disk volume, sbi->s_ndevs is 0.
1913 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1914 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1916 static inline bool f2fs_is_multi_device(struct f2fs_sb_info *sbi)
1918 return sbi->s_ndevs > 1;
1921 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1923 unsigned long now = jiffies;
1925 sbi->last_time[type] = now;
1927 /* DISCARD_TIME and GC_TIME are based on REQ_TIME */
1928 if (type == REQ_TIME) {
1929 sbi->last_time[DISCARD_TIME] = now;
1930 sbi->last_time[GC_TIME] = now;
1934 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1936 unsigned long interval = sbi->interval_time[type] * HZ;
1938 return time_after(jiffies, sbi->last_time[type] + interval);
1941 static inline unsigned int f2fs_time_to_wait(struct f2fs_sb_info *sbi,
1944 unsigned long interval = sbi->interval_time[type] * HZ;
1945 unsigned int wait_ms = 0;
1948 delta = (sbi->last_time[type] + interval) - jiffies;
1950 wait_ms = jiffies_to_msecs(delta);
1958 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1959 const void *address, unsigned int length)
1962 struct shash_desc shash;
1967 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1969 desc.shash.tfm = sbi->s_chksum_driver;
1970 *(u32 *)desc.ctx = crc;
1972 err = crypto_shash_update(&desc.shash, address, length);
1975 return *(u32 *)desc.ctx;
1978 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1979 unsigned int length)
1981 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1984 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1985 void *buf, size_t buf_size)
1987 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1990 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1991 const void *address, unsigned int length)
1993 return __f2fs_crc32(sbi, crc, address, length);
1996 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1998 return container_of(inode, struct f2fs_inode_info, vfs_inode);
2001 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
2003 return sb->s_fs_info;
2006 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
2008 return F2FS_SB(inode->i_sb);
2011 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
2013 return F2FS_I_SB(mapping->host);
2016 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
2018 return F2FS_M_SB(page_file_mapping(page));
2021 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
2023 return (struct f2fs_super_block *)(sbi->raw_super);
2026 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
2028 return (struct f2fs_checkpoint *)(sbi->ckpt);
2031 static inline struct f2fs_node *F2FS_NODE(struct page *page)
2033 return (struct f2fs_node *)page_address(page);
2036 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
2038 return &((struct f2fs_node *)page_address(page))->i;
2041 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
2043 return (struct f2fs_nm_info *)(sbi->nm_info);
2046 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
2048 return (struct f2fs_sm_info *)(sbi->sm_info);
2051 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
2053 return (struct sit_info *)(SM_I(sbi)->sit_info);
2056 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
2058 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
2061 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
2063 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
2066 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
2068 return sbi->meta_inode->i_mapping;
2071 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
2073 return sbi->node_inode->i_mapping;
2076 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
2078 return test_bit(type, &sbi->s_flag);
2081 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2083 set_bit(type, &sbi->s_flag);
2086 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
2088 clear_bit(type, &sbi->s_flag);
2091 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
2093 return le64_to_cpu(cp->checkpoint_ver);
2096 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
2098 if (type < F2FS_MAX_QUOTAS)
2099 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
2103 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
2105 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
2106 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
2109 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2111 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2113 return ckpt_flags & f;
2116 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2118 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
2121 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2123 unsigned int ckpt_flags;
2125 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2127 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2130 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2132 unsigned long flags;
2134 spin_lock_irqsave(&sbi->cp_lock, flags);
2135 __set_ckpt_flags(F2FS_CKPT(sbi), f);
2136 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2139 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
2141 unsigned int ckpt_flags;
2143 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
2145 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
2148 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
2150 unsigned long flags;
2152 spin_lock_irqsave(&sbi->cp_lock, flags);
2153 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
2154 spin_unlock_irqrestore(&sbi->cp_lock, flags);
2157 #define init_f2fs_rwsem(sem) \
2159 static struct lock_class_key __key; \
2161 __init_f2fs_rwsem((sem), #sem, &__key); \
2164 static inline void __init_f2fs_rwsem(struct f2fs_rwsem *sem,
2165 const char *sem_name, struct lock_class_key *key)
2167 __init_rwsem(&sem->internal_rwsem, sem_name, key);
2168 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2169 init_waitqueue_head(&sem->read_waiters);
2173 static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
2175 return rwsem_is_locked(&sem->internal_rwsem);
2178 static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
2180 return rwsem_is_contended(&sem->internal_rwsem);
2183 static inline void f2fs_down_read(struct f2fs_rwsem *sem)
2185 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2186 wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
2188 down_read(&sem->internal_rwsem);
2192 static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
2194 return down_read_trylock(&sem->internal_rwsem);
2197 #ifdef CONFIG_DEBUG_LOCK_ALLOC
2198 static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
2200 down_read_nested(&sem->internal_rwsem, subclass);
2203 #define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
2206 static inline void f2fs_up_read(struct f2fs_rwsem *sem)
2208 up_read(&sem->internal_rwsem);
2211 static inline void f2fs_down_write(struct f2fs_rwsem *sem)
2213 down_write(&sem->internal_rwsem);
2216 static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
2218 return down_write_trylock(&sem->internal_rwsem);
2221 static inline void f2fs_up_write(struct f2fs_rwsem *sem)
2223 up_write(&sem->internal_rwsem);
2224 #ifdef CONFIG_F2FS_UNFAIR_RWSEM
2225 wake_up_all(&sem->read_waiters);
2229 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
2231 f2fs_down_read(&sbi->cp_rwsem);
2234 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
2236 if (time_to_inject(sbi, FAULT_LOCK_OP)) {
2237 f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
2240 return f2fs_down_read_trylock(&sbi->cp_rwsem);
2243 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
2245 f2fs_up_read(&sbi->cp_rwsem);
2248 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
2250 f2fs_down_write(&sbi->cp_rwsem);
2253 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
2255 f2fs_up_write(&sbi->cp_rwsem);
2258 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
2260 int reason = CP_SYNC;
2262 if (test_opt(sbi, FASTBOOT))
2263 reason = CP_FASTBOOT;
2264 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
2269 static inline bool __remain_node_summaries(int reason)
2271 return (reason & (CP_UMOUNT | CP_FASTBOOT));
2274 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
2276 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
2277 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
2281 * Check whether the inode has blocks or not
2283 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
2285 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
2287 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
2290 static inline bool f2fs_has_xattr_block(unsigned int ofs)
2292 return ofs == XATTR_NODE_OFFSET;
2295 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
2296 struct inode *inode, bool cap)
2300 if (!test_opt(sbi, RESERVE_ROOT))
2302 if (IS_NOQUOTA(inode))
2304 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
2306 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
2307 in_group_p(F2FS_OPTION(sbi).s_resgid))
2309 if (cap && capable(CAP_SYS_RESOURCE))
2314 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
2315 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
2316 struct inode *inode, blkcnt_t *count)
2318 blkcnt_t diff = 0, release = 0;
2319 block_t avail_user_block_count;
2322 ret = dquot_reserve_block(inode, *count);
2326 if (time_to_inject(sbi, FAULT_BLOCK)) {
2327 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2333 * let's increase this in prior to actual block count change in order
2334 * for f2fs_sync_file to avoid data races when deciding checkpoint.
2336 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
2338 spin_lock(&sbi->stat_lock);
2339 sbi->total_valid_block_count += (block_t)(*count);
2340 avail_user_block_count = sbi->user_block_count -
2341 sbi->current_reserved_blocks;
2343 if (!__allow_reserved_blocks(sbi, inode, true))
2344 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
2346 if (F2FS_IO_ALIGNED(sbi))
2347 avail_user_block_count -= sbi->blocks_per_seg *
2348 SM_I(sbi)->additional_reserved_segments;
2350 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2351 if (avail_user_block_count > sbi->unusable_block_count)
2352 avail_user_block_count -= sbi->unusable_block_count;
2354 avail_user_block_count = 0;
2356 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
2357 diff = sbi->total_valid_block_count - avail_user_block_count;
2362 sbi->total_valid_block_count -= diff;
2364 spin_unlock(&sbi->stat_lock);
2368 spin_unlock(&sbi->stat_lock);
2370 if (unlikely(release)) {
2371 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2372 dquot_release_reservation_block(inode, release);
2374 f2fs_i_blocks_write(inode, *count, true, true);
2378 percpu_counter_sub(&sbi->alloc_valid_block_count, release);
2380 dquot_release_reservation_block(inode, release);
2385 void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...);
2387 #define f2fs_err(sbi, fmt, ...) \
2388 f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__)
2389 #define f2fs_warn(sbi, fmt, ...) \
2390 f2fs_printk(sbi, KERN_WARNING fmt, ##__VA_ARGS__)
2391 #define f2fs_notice(sbi, fmt, ...) \
2392 f2fs_printk(sbi, KERN_NOTICE fmt, ##__VA_ARGS__)
2393 #define f2fs_info(sbi, fmt, ...) \
2394 f2fs_printk(sbi, KERN_INFO fmt, ##__VA_ARGS__)
2395 #define f2fs_debug(sbi, fmt, ...) \
2396 f2fs_printk(sbi, KERN_DEBUG fmt, ##__VA_ARGS__)
2398 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
2399 struct inode *inode,
2402 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
2404 spin_lock(&sbi->stat_lock);
2405 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
2406 sbi->total_valid_block_count -= (block_t)count;
2407 if (sbi->reserved_blocks &&
2408 sbi->current_reserved_blocks < sbi->reserved_blocks)
2409 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
2410 sbi->current_reserved_blocks + count);
2411 spin_unlock(&sbi->stat_lock);
2412 if (unlikely(inode->i_blocks < sectors)) {
2413 f2fs_warn(sbi, "Inconsistent i_blocks, ino:%lu, iblocks:%llu, sectors:%llu",
2415 (unsigned long long)inode->i_blocks,
2416 (unsigned long long)sectors);
2417 set_sbi_flag(sbi, SBI_NEED_FSCK);
2420 f2fs_i_blocks_write(inode, count, false, true);
2423 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
2425 atomic_inc(&sbi->nr_pages[count_type]);
2427 if (count_type == F2FS_DIRTY_DENTS ||
2428 count_type == F2FS_DIRTY_NODES ||
2429 count_type == F2FS_DIRTY_META ||
2430 count_type == F2FS_DIRTY_QDATA ||
2431 count_type == F2FS_DIRTY_IMETA)
2432 set_sbi_flag(sbi, SBI_IS_DIRTY);
2435 static inline void inode_inc_dirty_pages(struct inode *inode)
2437 atomic_inc(&F2FS_I(inode)->dirty_pages);
2438 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2439 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2440 if (IS_NOQUOTA(inode))
2441 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2444 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
2446 atomic_dec(&sbi->nr_pages[count_type]);
2449 static inline void inode_dec_dirty_pages(struct inode *inode)
2451 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
2452 !S_ISLNK(inode->i_mode))
2455 atomic_dec(&F2FS_I(inode)->dirty_pages);
2456 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
2457 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
2458 if (IS_NOQUOTA(inode))
2459 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
2462 static inline void inc_atomic_write_cnt(struct inode *inode)
2464 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2465 struct f2fs_inode_info *fi = F2FS_I(inode);
2468 fi->atomic_write_cnt++;
2469 atomic64_inc(&sbi->current_atomic_write);
2470 current_write = atomic64_read(&sbi->current_atomic_write);
2471 if (current_write > sbi->peak_atomic_write)
2472 sbi->peak_atomic_write = current_write;
2475 static inline void release_atomic_write_cnt(struct inode *inode)
2477 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2478 struct f2fs_inode_info *fi = F2FS_I(inode);
2480 atomic64_sub(fi->atomic_write_cnt, &sbi->current_atomic_write);
2481 fi->atomic_write_cnt = 0;
2484 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
2486 return atomic_read(&sbi->nr_pages[count_type]);
2489 static inline int get_dirty_pages(struct inode *inode)
2491 return atomic_read(&F2FS_I(inode)->dirty_pages);
2494 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
2496 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
2497 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
2498 sbi->log_blocks_per_seg;
2500 return segs / sbi->segs_per_sec;
2503 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
2505 return sbi->total_valid_block_count;
2508 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
2510 return sbi->discard_blks;
2513 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
2515 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2517 /* return NAT or SIT bitmap */
2518 if (flag == NAT_BITMAP)
2519 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
2520 else if (flag == SIT_BITMAP)
2521 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
2526 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
2528 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
2531 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
2533 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
2534 void *tmp_ptr = &ckpt->sit_nat_version_bitmap;
2537 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
2538 offset = (flag == SIT_BITMAP) ?
2539 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
2541 * if large_nat_bitmap feature is enabled, leave checksum
2542 * protection for all nat/sit bitmaps.
2544 return tmp_ptr + offset + sizeof(__le32);
2547 if (__cp_payload(sbi) > 0) {
2548 if (flag == NAT_BITMAP)
2551 return (unsigned char *)ckpt + F2FS_BLKSIZE;
2553 offset = (flag == NAT_BITMAP) ?
2554 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
2555 return tmp_ptr + offset;
2559 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
2561 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2563 if (sbi->cur_cp_pack == 2)
2564 start_addr += sbi->blocks_per_seg;
2568 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
2570 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
2572 if (sbi->cur_cp_pack == 1)
2573 start_addr += sbi->blocks_per_seg;
2577 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
2579 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
2582 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
2584 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
2587 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
2588 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
2589 struct inode *inode, bool is_inode)
2591 block_t valid_block_count;
2592 unsigned int valid_node_count, user_block_count;
2597 err = dquot_alloc_inode(inode);
2602 err = dquot_reserve_block(inode, 1);
2607 if (time_to_inject(sbi, FAULT_BLOCK)) {
2608 f2fs_show_injection_info(sbi, FAULT_BLOCK);
2612 spin_lock(&sbi->stat_lock);
2614 valid_block_count = sbi->total_valid_block_count +
2615 sbi->current_reserved_blocks + 1;
2617 if (!__allow_reserved_blocks(sbi, inode, false))
2618 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
2620 if (F2FS_IO_ALIGNED(sbi))
2621 valid_block_count += sbi->blocks_per_seg *
2622 SM_I(sbi)->additional_reserved_segments;
2624 user_block_count = sbi->user_block_count;
2625 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2626 user_block_count -= sbi->unusable_block_count;
2628 if (unlikely(valid_block_count > user_block_count)) {
2629 spin_unlock(&sbi->stat_lock);
2633 valid_node_count = sbi->total_valid_node_count + 1;
2634 if (unlikely(valid_node_count > sbi->total_node_count)) {
2635 spin_unlock(&sbi->stat_lock);
2639 sbi->total_valid_node_count++;
2640 sbi->total_valid_block_count++;
2641 spin_unlock(&sbi->stat_lock);
2645 f2fs_mark_inode_dirty_sync(inode, true);
2647 f2fs_i_blocks_write(inode, 1, true, true);
2650 percpu_counter_inc(&sbi->alloc_valid_block_count);
2656 dquot_free_inode(inode);
2658 dquot_release_reservation_block(inode, 1);
2663 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
2664 struct inode *inode, bool is_inode)
2666 spin_lock(&sbi->stat_lock);
2668 if (unlikely(!sbi->total_valid_block_count ||
2669 !sbi->total_valid_node_count)) {
2670 f2fs_warn(sbi, "dec_valid_node_count: inconsistent block counts, total_valid_block:%u, total_valid_node:%u",
2671 sbi->total_valid_block_count,
2672 sbi->total_valid_node_count);
2673 set_sbi_flag(sbi, SBI_NEED_FSCK);
2675 sbi->total_valid_block_count--;
2676 sbi->total_valid_node_count--;
2679 if (sbi->reserved_blocks &&
2680 sbi->current_reserved_blocks < sbi->reserved_blocks)
2681 sbi->current_reserved_blocks++;
2683 spin_unlock(&sbi->stat_lock);
2686 dquot_free_inode(inode);
2688 if (unlikely(inode->i_blocks == 0)) {
2689 f2fs_warn(sbi, "dec_valid_node_count: inconsistent i_blocks, ino:%lu, iblocks:%llu",
2691 (unsigned long long)inode->i_blocks);
2692 set_sbi_flag(sbi, SBI_NEED_FSCK);
2695 f2fs_i_blocks_write(inode, 1, false, true);
2699 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
2701 return sbi->total_valid_node_count;
2704 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
2706 percpu_counter_inc(&sbi->total_valid_inode_count);
2709 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
2711 percpu_counter_dec(&sbi->total_valid_inode_count);
2714 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
2716 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
2719 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
2720 pgoff_t index, bool for_write)
2725 if (IS_ENABLED(CONFIG_F2FS_FAULT_INJECTION)) {
2727 page = find_get_page_flags(mapping, index,
2728 FGP_LOCK | FGP_ACCESSED);
2730 page = find_lock_page(mapping, index);
2734 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
2735 f2fs_show_injection_info(F2FS_M_SB(mapping),
2742 return grab_cache_page(mapping, index);
2744 flags = memalloc_nofs_save();
2745 page = grab_cache_page_write_begin(mapping, index);
2746 memalloc_nofs_restore(flags);
2751 static inline struct page *f2fs_pagecache_get_page(
2752 struct address_space *mapping, pgoff_t index,
2753 int fgp_flags, gfp_t gfp_mask)
2755 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
2756 f2fs_show_injection_info(F2FS_M_SB(mapping), FAULT_PAGE_GET);
2760 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
2763 static inline void f2fs_put_page(struct page *page, int unlock)
2769 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2775 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2778 f2fs_put_page(dn->node_page, 1);
2779 if (dn->inode_page && dn->node_page != dn->inode_page)
2780 f2fs_put_page(dn->inode_page, 0);
2781 dn->node_page = NULL;
2782 dn->inode_page = NULL;
2785 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2788 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2791 static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
2796 entry = kmem_cache_alloc(cachep, flags);
2798 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2802 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2803 gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
2806 return f2fs_kmem_cache_alloc_nofail(cachep, flags);
2808 if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
2809 f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
2813 return kmem_cache_alloc(cachep, flags);
2816 static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
2818 if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
2819 get_pages(sbi, F2FS_RD_META) || get_pages(sbi, F2FS_WB_DATA) ||
2820 get_pages(sbi, F2FS_WB_CP_DATA) ||
2821 get_pages(sbi, F2FS_DIO_READ) ||
2822 get_pages(sbi, F2FS_DIO_WRITE))
2825 if (type != DISCARD_TIME && SM_I(sbi) && SM_I(sbi)->dcc_info &&
2826 atomic_read(&SM_I(sbi)->dcc_info->queued_discard))
2829 if (SM_I(sbi) && SM_I(sbi)->fcc_info &&
2830 atomic_read(&SM_I(sbi)->fcc_info->queued_flush))
2835 static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
2837 if (sbi->gc_mode == GC_URGENT_HIGH)
2840 if (is_inflight_io(sbi, type))
2843 if (sbi->gc_mode == GC_URGENT_MID)
2846 if (sbi->gc_mode == GC_URGENT_LOW &&
2847 (type == DISCARD_TIME || type == GC_TIME))
2850 return f2fs_time_over(sbi, type);
2853 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2854 unsigned long index, void *item)
2856 while (radix_tree_insert(root, index, item))
2860 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2862 static inline bool IS_INODE(struct page *page)
2864 struct f2fs_node *p = F2FS_NODE(page);
2866 return RAW_IS_INODE(p);
2869 static inline int offset_in_addr(struct f2fs_inode *i)
2871 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2872 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2875 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2877 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2880 static inline int f2fs_has_extra_attr(struct inode *inode);
2881 static inline block_t data_blkaddr(struct inode *inode,
2882 struct page *node_page, unsigned int offset)
2884 struct f2fs_node *raw_node;
2887 bool is_inode = IS_INODE(node_page);
2889 raw_node = F2FS_NODE(node_page);
2893 /* from GC path only */
2894 base = offset_in_addr(&raw_node->i);
2895 else if (f2fs_has_extra_attr(inode))
2896 base = get_extra_isize(inode);
2899 addr_array = blkaddr_in_node(raw_node);
2900 return le32_to_cpu(addr_array[base + offset]);
2903 static inline block_t f2fs_data_blkaddr(struct dnode_of_data *dn)
2905 return data_blkaddr(dn->inode, dn->node_page, dn->ofs_in_node);
2908 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2913 mask = 1 << (7 - (nr & 0x07));
2914 return mask & *addr;
2917 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2922 mask = 1 << (7 - (nr & 0x07));
2926 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2931 mask = 1 << (7 - (nr & 0x07));
2935 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2941 mask = 1 << (7 - (nr & 0x07));
2947 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2953 mask = 1 << (7 - (nr & 0x07));
2959 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2964 mask = 1 << (7 - (nr & 0x07));
2969 * On-disk inode flags (f2fs_inode::i_flags)
2971 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2972 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2973 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2974 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2975 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2976 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2977 #define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
2978 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2979 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2980 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2981 #define F2FS_CASEFOLD_FL 0x40000000 /* Casefolded file */
2983 /* Flags that should be inherited by new inodes from their parent. */
2984 #define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
2985 F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2988 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2989 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
2992 /* Flags that are appropriate for non-directories/regular files. */
2993 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2995 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2999 else if (S_ISREG(mode))
3000 return flags & F2FS_REG_FLMASK;
3002 return flags & F2FS_OTHER_FLMASK;
3005 static inline void __mark_inode_dirty_flag(struct inode *inode,
3009 case FI_INLINE_XATTR:
3010 case FI_INLINE_DATA:
3011 case FI_INLINE_DENTRY:
3017 case FI_INLINE_DOTS:
3019 case FI_COMPRESS_RELEASED:
3020 f2fs_mark_inode_dirty_sync(inode, true);
3024 static inline void set_inode_flag(struct inode *inode, int flag)
3026 set_bit(flag, F2FS_I(inode)->flags);
3027 __mark_inode_dirty_flag(inode, flag, true);
3030 static inline int is_inode_flag_set(struct inode *inode, int flag)
3032 return test_bit(flag, F2FS_I(inode)->flags);
3035 static inline void clear_inode_flag(struct inode *inode, int flag)
3037 clear_bit(flag, F2FS_I(inode)->flags);
3038 __mark_inode_dirty_flag(inode, flag, false);
3041 static inline bool f2fs_verity_in_progress(struct inode *inode)
3043 return IS_ENABLED(CONFIG_FS_VERITY) &&
3044 is_inode_flag_set(inode, FI_VERITY_IN_PROGRESS);
3047 static inline void set_acl_inode(struct inode *inode, umode_t mode)
3049 F2FS_I(inode)->i_acl_mode = mode;
3050 set_inode_flag(inode, FI_ACL_MODE);
3051 f2fs_mark_inode_dirty_sync(inode, false);
3054 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
3060 f2fs_mark_inode_dirty_sync(inode, true);
3063 static inline void f2fs_i_blocks_write(struct inode *inode,
3064 block_t diff, bool add, bool claim)
3066 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3067 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3069 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
3072 dquot_claim_block(inode, diff);
3074 dquot_alloc_block_nofail(inode, diff);
3076 dquot_free_block(inode, diff);
3079 f2fs_mark_inode_dirty_sync(inode, true);
3080 if (clean || recover)
3081 set_inode_flag(inode, FI_AUTO_RECOVER);
3084 static inline bool f2fs_is_atomic_file(struct inode *inode);
3086 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
3088 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
3089 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
3091 if (i_size_read(inode) == i_size)
3094 i_size_write(inode, i_size);
3096 if (f2fs_is_atomic_file(inode))
3099 f2fs_mark_inode_dirty_sync(inode, true);
3100 if (clean || recover)
3101 set_inode_flag(inode, FI_AUTO_RECOVER);
3104 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
3106 F2FS_I(inode)->i_current_depth = depth;
3107 f2fs_mark_inode_dirty_sync(inode, true);
3110 static inline void f2fs_i_gc_failures_write(struct inode *inode,
3113 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
3114 f2fs_mark_inode_dirty_sync(inode, true);
3117 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
3119 F2FS_I(inode)->i_xattr_nid = xnid;
3120 f2fs_mark_inode_dirty_sync(inode, true);
3123 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
3125 F2FS_I(inode)->i_pino = pino;
3126 f2fs_mark_inode_dirty_sync(inode, true);
3129 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
3131 struct f2fs_inode_info *fi = F2FS_I(inode);
3133 if (ri->i_inline & F2FS_INLINE_XATTR)
3134 set_bit(FI_INLINE_XATTR, fi->flags);
3135 if (ri->i_inline & F2FS_INLINE_DATA)
3136 set_bit(FI_INLINE_DATA, fi->flags);
3137 if (ri->i_inline & F2FS_INLINE_DENTRY)
3138 set_bit(FI_INLINE_DENTRY, fi->flags);
3139 if (ri->i_inline & F2FS_DATA_EXIST)
3140 set_bit(FI_DATA_EXIST, fi->flags);
3141 if (ri->i_inline & F2FS_INLINE_DOTS)
3142 set_bit(FI_INLINE_DOTS, fi->flags);
3143 if (ri->i_inline & F2FS_EXTRA_ATTR)
3144 set_bit(FI_EXTRA_ATTR, fi->flags);
3145 if (ri->i_inline & F2FS_PIN_FILE)
3146 set_bit(FI_PIN_FILE, fi->flags);
3147 if (ri->i_inline & F2FS_COMPRESS_RELEASED)
3148 set_bit(FI_COMPRESS_RELEASED, fi->flags);
3151 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
3155 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
3156 ri->i_inline |= F2FS_INLINE_XATTR;
3157 if (is_inode_flag_set(inode, FI_INLINE_DATA))
3158 ri->i_inline |= F2FS_INLINE_DATA;
3159 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
3160 ri->i_inline |= F2FS_INLINE_DENTRY;
3161 if (is_inode_flag_set(inode, FI_DATA_EXIST))
3162 ri->i_inline |= F2FS_DATA_EXIST;
3163 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
3164 ri->i_inline |= F2FS_INLINE_DOTS;
3165 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
3166 ri->i_inline |= F2FS_EXTRA_ATTR;
3167 if (is_inode_flag_set(inode, FI_PIN_FILE))
3168 ri->i_inline |= F2FS_PIN_FILE;
3169 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
3170 ri->i_inline |= F2FS_COMPRESS_RELEASED;
3173 static inline int f2fs_has_extra_attr(struct inode *inode)
3175 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
3178 static inline int f2fs_has_inline_xattr(struct inode *inode)
3180 return is_inode_flag_set(inode, FI_INLINE_XATTR);
3183 static inline int f2fs_compressed_file(struct inode *inode)
3185 return S_ISREG(inode->i_mode) &&
3186 is_inode_flag_set(inode, FI_COMPRESSED_FILE);
3189 static inline bool f2fs_need_compress_data(struct inode *inode)
3191 int compress_mode = F2FS_OPTION(F2FS_I_SB(inode)).compress_mode;
3193 if (!f2fs_compressed_file(inode))
3196 if (compress_mode == COMPR_MODE_FS)
3198 else if (compress_mode == COMPR_MODE_USER &&
3199 is_inode_flag_set(inode, FI_ENABLE_COMPRESS))
3205 static inline unsigned int addrs_per_inode(struct inode *inode)
3207 unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
3208 get_inline_xattr_addrs(inode);
3210 if (!f2fs_compressed_file(inode))
3212 return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
3215 static inline unsigned int addrs_per_block(struct inode *inode)
3217 if (!f2fs_compressed_file(inode))
3218 return DEF_ADDRS_PER_BLOCK;
3219 return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
3222 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
3224 struct f2fs_inode *ri = F2FS_INODE(page);
3226 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
3227 get_inline_xattr_addrs(inode)]);
3230 static inline int inline_xattr_size(struct inode *inode)
3232 if (f2fs_has_inline_xattr(inode))
3233 return get_inline_xattr_addrs(inode) * sizeof(__le32);
3238 * Notice: check inline_data flag without inode page lock is unsafe.
3239 * It could change at any time by f2fs_convert_inline_page().
3241 static inline int f2fs_has_inline_data(struct inode *inode)
3243 return is_inode_flag_set(inode, FI_INLINE_DATA);
3246 static inline int f2fs_exist_data(struct inode *inode)
3248 return is_inode_flag_set(inode, FI_DATA_EXIST);
3251 static inline int f2fs_has_inline_dots(struct inode *inode)
3253 return is_inode_flag_set(inode, FI_INLINE_DOTS);
3256 static inline int f2fs_is_mmap_file(struct inode *inode)
3258 return is_inode_flag_set(inode, FI_MMAP_FILE);
3261 static inline bool f2fs_is_pinned_file(struct inode *inode)
3263 return is_inode_flag_set(inode, FI_PIN_FILE);
3266 static inline bool f2fs_is_atomic_file(struct inode *inode)
3268 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
3271 static inline bool f2fs_is_cow_file(struct inode *inode)
3273 return is_inode_flag_set(inode, FI_COW_FILE);
3276 static inline bool f2fs_is_first_block_written(struct inode *inode)
3278 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
3281 static inline bool f2fs_is_drop_cache(struct inode *inode)
3283 return is_inode_flag_set(inode, FI_DROP_CACHE);
3286 static inline void *inline_data_addr(struct inode *inode, struct page *page)
3288 struct f2fs_inode *ri = F2FS_INODE(page);
3289 int extra_size = get_extra_isize(inode);
3291 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
3294 static inline int f2fs_has_inline_dentry(struct inode *inode)
3296 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
3299 static inline int is_file(struct inode *inode, int type)
3301 return F2FS_I(inode)->i_advise & type;
3304 static inline void set_file(struct inode *inode, int type)
3306 if (is_file(inode, type))
3308 F2FS_I(inode)->i_advise |= type;
3309 f2fs_mark_inode_dirty_sync(inode, true);
3312 static inline void clear_file(struct inode *inode, int type)
3314 if (!is_file(inode, type))
3316 F2FS_I(inode)->i_advise &= ~type;
3317 f2fs_mark_inode_dirty_sync(inode, true);
3320 static inline bool f2fs_is_time_consistent(struct inode *inode)
3322 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
3324 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
3326 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
3328 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
3329 &F2FS_I(inode)->i_crtime))
3334 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
3339 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3341 spin_lock(&sbi->inode_lock[DIRTY_META]);
3342 ret = list_empty(&F2FS_I(inode)->gdirty_list);
3343 spin_unlock(&sbi->inode_lock[DIRTY_META]);
3346 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
3347 file_keep_isize(inode) ||
3348 i_size_read(inode) & ~PAGE_MASK)
3351 if (!f2fs_is_time_consistent(inode))
3354 spin_lock(&F2FS_I(inode)->i_size_lock);
3355 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
3356 spin_unlock(&F2FS_I(inode)->i_size_lock);
3361 static inline bool f2fs_readonly(struct super_block *sb)
3363 return sb_rdonly(sb);
3366 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
3368 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
3371 static inline bool is_dot_dotdot(const u8 *name, size_t len)
3373 if (len == 1 && name[0] == '.')
3376 if (len == 2 && name[0] == '.' && name[1] == '.')
3382 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
3383 size_t size, gfp_t flags)
3385 if (time_to_inject(sbi, FAULT_KMALLOC)) {
3386 f2fs_show_injection_info(sbi, FAULT_KMALLOC);
3390 return kmalloc(size, flags);
3393 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
3394 size_t size, gfp_t flags)
3396 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
3399 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
3400 size_t size, gfp_t flags)
3402 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
3403 f2fs_show_injection_info(sbi, FAULT_KVMALLOC);
3407 return kvmalloc(size, flags);
3410 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
3411 size_t size, gfp_t flags)
3413 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
3416 static inline int get_extra_isize(struct inode *inode)
3418 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
3421 static inline int get_inline_xattr_addrs(struct inode *inode)
3423 return F2FS_I(inode)->i_inline_xattr_size;
3426 #define f2fs_get_inode_mode(i) \
3427 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
3428 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
3430 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
3431 (offsetof(struct f2fs_inode, i_extra_end) - \
3432 offsetof(struct f2fs_inode, i_extra_isize)) \
3434 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
3435 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
3436 ((offsetof(typeof(*(f2fs_inode)), field) + \
3437 sizeof((f2fs_inode)->field)) \
3438 <= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
3440 #define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
3442 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
3444 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3445 block_t blkaddr, int type);
3446 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
3447 block_t blkaddr, int type)
3449 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
3450 f2fs_err(sbi, "invalid blkaddr: %u, type: %d, run fsck to fix.",
3452 f2fs_bug_on(sbi, 1);
3456 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
3458 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
3459 blkaddr == COMPRESS_ADDR)
3467 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
3468 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
3469 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock);
3470 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
3471 int f2fs_truncate(struct inode *inode);
3472 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
3473 struct kstat *stat, u32 request_mask, unsigned int flags);
3474 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
3475 struct iattr *attr);
3476 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
3477 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
3478 int f2fs_precache_extents(struct inode *inode);
3479 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa);
3480 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3481 struct dentry *dentry, struct fileattr *fa);
3482 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
3483 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
3484 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid);
3485 int f2fs_pin_file_control(struct inode *inode, bool inc);
3490 void f2fs_set_inode_flags(struct inode *inode);
3491 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
3492 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
3493 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
3494 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
3495 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
3496 void f2fs_update_inode(struct inode *inode, struct page *node_page);
3497 void f2fs_update_inode_page(struct inode *inode);
3498 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
3499 void f2fs_evict_inode(struct inode *inode);
3500 void f2fs_handle_failed_inode(struct inode *inode);
3505 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
3506 bool hot, bool set);
3507 struct dentry *f2fs_get_parent(struct dentry *child);
3508 int f2fs_get_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
3509 struct inode **new_inode);
3514 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
3515 int f2fs_init_casefolded_name(const struct inode *dir,
3516 struct f2fs_filename *fname);
3517 int f2fs_setup_filename(struct inode *dir, const struct qstr *iname,
3518 int lookup, struct f2fs_filename *fname);
3519 int f2fs_prepare_lookup(struct inode *dir, struct dentry *dentry,
3520 struct f2fs_filename *fname);
3521 void f2fs_free_filename(struct f2fs_filename *fname);
3522 struct f2fs_dir_entry *f2fs_find_target_dentry(const struct f2fs_dentry_ptr *d,
3523 const struct f2fs_filename *fname, int *max_slots);
3524 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
3525 unsigned int start_pos, struct fscrypt_str *fstr);
3526 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
3527 struct f2fs_dentry_ptr *d);
3528 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
3529 const struct f2fs_filename *fname, struct page *dpage);
3530 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
3531 unsigned int current_depth);
3532 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
3533 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
3534 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
3535 const struct f2fs_filename *fname,
3536 struct page **res_page);
3537 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
3538 const struct qstr *child, struct page **res_page);
3539 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
3540 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
3541 struct page **page);
3542 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
3543 struct page *page, struct inode *inode);
3544 bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
3545 const struct f2fs_filename *fname);
3546 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
3547 const struct fscrypt_str *name, f2fs_hash_t name_hash,
3548 unsigned int bit_pos);
3549 int f2fs_add_regular_entry(struct inode *dir, const struct f2fs_filename *fname,
3550 struct inode *inode, nid_t ino, umode_t mode);
3551 int f2fs_add_dentry(struct inode *dir, const struct f2fs_filename *fname,
3552 struct inode *inode, nid_t ino, umode_t mode);
3553 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
3554 struct inode *inode, nid_t ino, umode_t mode);
3555 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
3556 struct inode *dir, struct inode *inode);
3557 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
3558 bool f2fs_empty_dir(struct inode *dir);
3560 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
3562 if (fscrypt_is_nokey_name(dentry))
3564 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
3565 inode, inode->i_ino, inode->i_mode);
3571 int f2fs_inode_dirtied(struct inode *inode, bool sync);
3572 void f2fs_inode_synced(struct inode *inode);
3573 int f2fs_dquot_initialize(struct inode *inode);
3574 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
3575 int f2fs_quota_sync(struct super_block *sb, int type);
3576 loff_t max_file_blocks(struct inode *inode);
3577 void f2fs_quota_off_umount(struct super_block *sb);
3578 void f2fs_handle_stop(struct f2fs_sb_info *sbi, unsigned char reason);
3579 void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error);
3580 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
3581 int f2fs_sync_fs(struct super_block *sb, int sync);
3582 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
3587 void f2fs_hash_filename(const struct inode *dir, struct f2fs_filename *fname);
3594 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
3595 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
3596 bool f2fs_in_warm_node_list(struct f2fs_sb_info *sbi, struct page *page);
3597 void f2fs_init_fsync_node_info(struct f2fs_sb_info *sbi);
3598 void f2fs_del_fsync_node_entry(struct f2fs_sb_info *sbi, struct page *page);
3599 void f2fs_reset_fsync_node_info(struct f2fs_sb_info *sbi);
3600 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
3601 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
3602 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
3603 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
3604 struct node_info *ni, bool checkpoint_context);
3605 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
3606 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
3607 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
3608 int f2fs_truncate_xattr_node(struct inode *inode);
3609 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
3610 unsigned int seq_id);
3611 bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
3612 int f2fs_remove_inode_page(struct inode *inode);
3613 struct page *f2fs_new_inode_page(struct inode *inode);
3614 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
3615 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
3616 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
3617 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
3618 int f2fs_move_node_page(struct page *node_page, int gc_type);
3619 void f2fs_flush_inline_data(struct f2fs_sb_info *sbi);
3620 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
3621 struct writeback_control *wbc, bool atomic,
3622 unsigned int *seq_id);
3623 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
3624 struct writeback_control *wbc,
3625 bool do_balance, enum iostat_type io_type);
3626 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
3627 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
3628 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
3629 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
3630 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
3631 int f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
3632 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
3633 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
3634 int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
3635 unsigned int segno, struct f2fs_summary_block *sum);
3636 void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
3637 int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3638 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
3639 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
3640 int __init f2fs_create_node_manager_caches(void);
3641 void f2fs_destroy_node_manager_caches(void);
3646 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
3647 int f2fs_commit_atomic_write(struct inode *inode);
3648 void f2fs_abort_atomic_write(struct inode *inode, bool clean);
3649 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
3650 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg);
3651 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
3652 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
3653 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
3654 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
3655 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
3656 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
3657 int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
3658 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
3659 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
3660 bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
3661 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
3662 struct cp_control *cpc);
3663 void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi);
3664 block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
3665 int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
3666 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
3667 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
3668 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
3669 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
3670 void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
3671 void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
3672 void f2fs_get_new_segment(struct f2fs_sb_info *sbi,
3673 unsigned int *newseg, bool new_sec, int dir);
3674 void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
3675 unsigned int start, unsigned int end);
3676 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force);
3677 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
3678 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
3679 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
3680 struct cp_control *cpc);
3681 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
3682 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
3684 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
3685 enum iostat_type io_type);
3686 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
3687 void f2fs_outplace_write_data(struct dnode_of_data *dn,
3688 struct f2fs_io_info *fio);
3689 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
3690 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
3691 block_t old_blkaddr, block_t new_blkaddr,
3692 bool recover_curseg, bool recover_newaddr,
3694 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
3695 block_t old_addr, block_t new_addr,
3696 unsigned char version, bool recover_curseg,
3697 bool recover_newaddr);
3698 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
3699 block_t old_blkaddr, block_t *new_blkaddr,
3700 struct f2fs_summary *sum, int type,
3701 struct f2fs_io_info *fio);
3702 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
3703 block_t blkaddr, unsigned int blkcnt);
3704 void f2fs_wait_on_page_writeback(struct page *page,
3705 enum page_type type, bool ordered, bool locked);
3706 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
3707 void f2fs_wait_on_block_writeback_range(struct inode *inode, block_t blkaddr,
3709 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3710 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
3711 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
3712 unsigned int val, int alloc);
3713 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3714 int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
3715 int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
3716 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
3717 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
3718 int __init f2fs_create_segment_manager_caches(void);
3719 void f2fs_destroy_segment_manager_caches(void);
3720 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
3721 unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
3722 unsigned int segno);
3723 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
3724 unsigned int segno);
3726 #define DEF_FRAGMENT_SIZE 4
3727 #define MIN_FRAGMENT_SIZE 1
3728 #define MAX_FRAGMENT_SIZE 512
3730 static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
3732 return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
3733 F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
3739 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io,
3740 unsigned char reason);
3741 void f2fs_flush_ckpt_thread(struct f2fs_sb_info *sbi);
3742 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3743 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
3744 struct page *f2fs_get_meta_page_retry(struct f2fs_sb_info *sbi, pgoff_t index);
3745 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
3746 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
3747 block_t blkaddr, int type);
3748 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
3749 int type, bool sync);
3750 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index,
3751 unsigned int ra_blocks);
3752 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
3753 long nr_to_write, enum iostat_type io_type);
3754 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3755 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
3756 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
3757 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
3758 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3759 unsigned int devidx, int type);
3760 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
3761 unsigned int devidx, int type);
3762 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
3763 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
3764 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
3765 void f2fs_add_orphan_inode(struct inode *inode);
3766 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
3767 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
3768 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
3769 void f2fs_update_dirty_folio(struct inode *inode, struct folio *folio);
3770 void f2fs_remove_dirty_inode(struct inode *inode);
3771 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type,
3773 void f2fs_wait_on_all_pages(struct f2fs_sb_info *sbi, int type);
3774 u64 f2fs_get_sectors_written(struct f2fs_sb_info *sbi);
3775 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
3776 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
3777 int __init f2fs_create_checkpoint_caches(void);
3778 void f2fs_destroy_checkpoint_caches(void);
3779 int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi);
3780 int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi);
3781 void f2fs_stop_ckpt_thread(struct f2fs_sb_info *sbi);
3782 void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
3787 int __init f2fs_init_bioset(void);
3788 void f2fs_destroy_bioset(void);
3789 int f2fs_init_bio_entry_cache(void);
3790 void f2fs_destroy_bio_entry_cache(void);
3791 void f2fs_submit_bio(struct f2fs_sb_info *sbi,
3792 struct bio *bio, enum page_type type);
3793 int f2fs_init_write_merge_io(struct f2fs_sb_info *sbi);
3794 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
3795 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
3796 struct inode *inode, struct page *page,
3797 nid_t ino, enum page_type type);
3798 void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
3799 struct bio **bio, struct page *page);
3800 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
3801 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
3802 int f2fs_merge_page_bio(struct f2fs_io_info *fio);
3803 void f2fs_submit_page_write(struct f2fs_io_info *fio);
3804 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
3805 block_t blk_addr, sector_t *sector);
3806 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
3807 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
3808 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
3809 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
3810 int f2fs_reserve_new_block(struct dnode_of_data *dn);
3811 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
3812 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
3813 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
3814 blk_opf_t op_flags, bool for_write, pgoff_t *next_pgofs);
3815 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index,
3816 pgoff_t *next_pgofs);
3817 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
3819 struct page *f2fs_get_new_data_page(struct inode *inode,
3820 struct page *ipage, pgoff_t index, bool new_i_size);
3821 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
3822 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock);
3823 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
3824 int create, int flag);
3825 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
3826 u64 start, u64 len);
3827 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
3828 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
3829 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
3830 int f2fs_write_single_data_page(struct page *page, int *submitted,
3831 struct bio **bio, sector_t *last_block,
3832 struct writeback_control *wbc,
3833 enum iostat_type io_type,
3834 int compr_blocks, bool allow_balance);
3835 void f2fs_write_failed(struct inode *inode, loff_t to);
3836 void f2fs_invalidate_folio(struct folio *folio, size_t offset, size_t length);
3837 bool f2fs_release_folio(struct folio *folio, gfp_t wait);
3838 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
3839 void f2fs_clear_page_cache_dirty_tag(struct page *page);
3840 int f2fs_init_post_read_processing(void);
3841 void f2fs_destroy_post_read_processing(void);
3842 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
3843 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
3844 extern const struct iomap_ops f2fs_iomap_ops;
3849 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3850 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3851 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3852 int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_control *gc_control);
3853 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3854 int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count);
3855 int __init f2fs_create_garbage_collection_cache(void);
3856 void f2fs_destroy_garbage_collection_cache(void);
3861 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3862 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3863 int __init f2fs_create_recovery_cache(void);
3864 void f2fs_destroy_recovery_cache(void);
3869 #ifdef CONFIG_F2FS_STAT_FS
3870 struct f2fs_stat_info {
3871 struct list_head stat_list;
3872 struct f2fs_sb_info *sbi;
3873 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3874 int main_area_segs, main_area_sections, main_area_zones;
3875 unsigned long long hit_cached[NR_EXTENT_CACHES];
3876 unsigned long long hit_rbtree[NR_EXTENT_CACHES];
3877 unsigned long long total_ext[NR_EXTENT_CACHES];
3878 unsigned long long hit_total[NR_EXTENT_CACHES];
3879 int ext_tree[NR_EXTENT_CACHES];
3880 int zombie_tree[NR_EXTENT_CACHES];
3881 int ext_node[NR_EXTENT_CACHES];
3882 /* to count memory footprint */
3883 unsigned long long ext_mem[NR_EXTENT_CACHES];
3884 /* for read extent cache */
3885 unsigned long long hit_largest;
3886 /* for block age extent cache */
3887 unsigned long long allocated_data_blocks;
3888 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3889 int ndirty_data, ndirty_qdata;
3890 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3891 int nats, dirty_nats, sits, dirty_sits;
3892 int free_nids, avail_nids, alloc_nids;
3893 int total_count, utilization;
3894 int bg_gc, nr_wb_cp_data, nr_wb_data;
3895 int nr_rd_data, nr_rd_node, nr_rd_meta;
3896 int nr_dio_read, nr_dio_write;
3897 unsigned int io_skip_bggc, other_skip_bggc;
3898 int nr_flushing, nr_flushed, flush_list_empty;
3899 int nr_discarding, nr_discarded;
3901 unsigned int undiscard_blks;
3902 int nr_issued_ckpt, nr_total_ckpt, nr_queued_ckpt;
3903 unsigned int cur_ckpt_time, peak_ckpt_time;
3904 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3905 int compr_inode, swapfile_inode;
3906 unsigned long long compr_blocks;
3907 int aw_cnt, max_aw_cnt;
3908 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3909 unsigned int bimodal, avg_vblocks;
3910 int util_free, util_valid, util_invalid;
3911 int rsvd_segs, overp_segs;
3912 int dirty_count, node_pages, meta_pages, compress_pages;
3913 int compress_page_hit;
3914 int prefree_count, call_count, cp_count, bg_cp_count;
3915 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3916 int bg_node_segs, bg_data_segs;
3917 int tot_blks, data_blks, node_blks;
3918 int bg_data_blks, bg_node_blks;
3919 int curseg[NR_CURSEG_TYPE];
3920 int cursec[NR_CURSEG_TYPE];
3921 int curzone[NR_CURSEG_TYPE];
3922 unsigned int dirty_seg[NR_CURSEG_TYPE];
3923 unsigned int full_seg[NR_CURSEG_TYPE];
3924 unsigned int valid_blks[NR_CURSEG_TYPE];
3926 unsigned int meta_count[META_MAX];
3927 unsigned int segment_count[2];
3928 unsigned int block_count[2];
3929 unsigned int inplace_count;
3930 unsigned long long base_mem, cache_mem, page_mem;
3933 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3935 return (struct f2fs_stat_info *)sbi->stat_info;
3938 #define stat_inc_cp_count(si) ((si)->cp_count++)
3939 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3940 #define stat_inc_call_count(si) ((si)->call_count++)
3941 #define stat_inc_bggc_count(si) ((si)->bg_gc++)
3942 #define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
3943 #define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
3944 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3945 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3946 #define stat_inc_total_hit(sbi, type) (atomic64_inc(&(sbi)->total_hit_ext[type]))
3947 #define stat_inc_rbtree_node_hit(sbi, type) (atomic64_inc(&(sbi)->read_hit_rbtree[type]))
3948 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3949 #define stat_inc_cached_node_hit(sbi, type) (atomic64_inc(&(sbi)->read_hit_cached[type]))
3950 #define stat_inc_inline_xattr(inode) \
3952 if (f2fs_has_inline_xattr(inode)) \
3953 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3955 #define stat_dec_inline_xattr(inode) \
3957 if (f2fs_has_inline_xattr(inode)) \
3958 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3960 #define stat_inc_inline_inode(inode) \
3962 if (f2fs_has_inline_data(inode)) \
3963 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3965 #define stat_dec_inline_inode(inode) \
3967 if (f2fs_has_inline_data(inode)) \
3968 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3970 #define stat_inc_inline_dir(inode) \
3972 if (f2fs_has_inline_dentry(inode)) \
3973 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3975 #define stat_dec_inline_dir(inode) \
3977 if (f2fs_has_inline_dentry(inode)) \
3978 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3980 #define stat_inc_compr_inode(inode) \
3982 if (f2fs_compressed_file(inode)) \
3983 (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
3985 #define stat_dec_compr_inode(inode) \
3987 if (f2fs_compressed_file(inode)) \
3988 (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
3990 #define stat_add_compr_blocks(inode, blocks) \
3991 (atomic64_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
3992 #define stat_sub_compr_blocks(inode, blocks) \
3993 (atomic64_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
3994 #define stat_inc_swapfile_inode(inode) \
3995 (atomic_inc(&F2FS_I_SB(inode)->swapfile_inode))
3996 #define stat_dec_swapfile_inode(inode) \
3997 (atomic_dec(&F2FS_I_SB(inode)->swapfile_inode))
3998 #define stat_inc_atomic_inode(inode) \
3999 (atomic_inc(&F2FS_I_SB(inode)->atomic_files))
4000 #define stat_dec_atomic_inode(inode) \
4001 (atomic_dec(&F2FS_I_SB(inode)->atomic_files))
4002 #define stat_inc_meta_count(sbi, blkaddr) \
4004 if (blkaddr < SIT_I(sbi)->sit_base_addr) \
4005 atomic_inc(&(sbi)->meta_count[META_CP]); \
4006 else if (blkaddr < NM_I(sbi)->nat_blkaddr) \
4007 atomic_inc(&(sbi)->meta_count[META_SIT]); \
4008 else if (blkaddr < SM_I(sbi)->ssa_blkaddr) \
4009 atomic_inc(&(sbi)->meta_count[META_NAT]); \
4010 else if (blkaddr < SM_I(sbi)->main_blkaddr) \
4011 atomic_inc(&(sbi)->meta_count[META_SSA]); \
4013 #define stat_inc_seg_type(sbi, curseg) \
4014 ((sbi)->segment_count[(curseg)->alloc_type]++)
4015 #define stat_inc_block_count(sbi, curseg) \
4016 ((sbi)->block_count[(curseg)->alloc_type]++)
4017 #define stat_inc_inplace_blocks(sbi) \
4018 (atomic_inc(&(sbi)->inplace_count))
4019 #define stat_update_max_atomic_write(inode) \
4021 int cur = atomic_read(&F2FS_I_SB(inode)->atomic_files); \
4022 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
4024 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
4026 #define stat_inc_seg_count(sbi, type, gc_type) \
4028 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4030 if ((type) == SUM_TYPE_DATA) { \
4032 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
4035 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
4039 #define stat_inc_tot_blk_count(si, blks) \
4040 ((si)->tot_blks += (blks))
4042 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
4044 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4045 stat_inc_tot_blk_count(si, blks); \
4046 si->data_blks += (blks); \
4047 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
4050 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
4052 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
4053 stat_inc_tot_blk_count(si, blks); \
4054 si->node_blks += (blks); \
4055 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
4058 int f2fs_build_stats(struct f2fs_sb_info *sbi);
4059 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
4060 void __init f2fs_create_root_stats(void);
4061 void f2fs_destroy_root_stats(void);
4062 void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
4064 #define stat_inc_cp_count(si) do { } while (0)
4065 #define stat_inc_bg_cp_count(si) do { } while (0)
4066 #define stat_inc_call_count(si) do { } while (0)
4067 #define stat_inc_bggc_count(si) do { } while (0)
4068 #define stat_io_skip_bggc_count(sbi) do { } while (0)
4069 #define stat_other_skip_bggc_count(sbi) do { } while (0)
4070 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
4071 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
4072 #define stat_inc_total_hit(sbi, type) do { } while (0)
4073 #define stat_inc_rbtree_node_hit(sbi, type) do { } while (0)
4074 #define stat_inc_largest_node_hit(sbi) do { } while (0)
4075 #define stat_inc_cached_node_hit(sbi, type) do { } while (0)
4076 #define stat_inc_inline_xattr(inode) do { } while (0)
4077 #define stat_dec_inline_xattr(inode) do { } while (0)
4078 #define stat_inc_inline_inode(inode) do { } while (0)
4079 #define stat_dec_inline_inode(inode) do { } while (0)
4080 #define stat_inc_inline_dir(inode) do { } while (0)
4081 #define stat_dec_inline_dir(inode) do { } while (0)
4082 #define stat_inc_compr_inode(inode) do { } while (0)
4083 #define stat_dec_compr_inode(inode) do { } while (0)
4084 #define stat_add_compr_blocks(inode, blocks) do { } while (0)
4085 #define stat_sub_compr_blocks(inode, blocks) do { } while (0)
4086 #define stat_inc_swapfile_inode(inode) do { } while (0)
4087 #define stat_dec_swapfile_inode(inode) do { } while (0)
4088 #define stat_inc_atomic_inode(inode) do { } while (0)
4089 #define stat_dec_atomic_inode(inode) do { } while (0)
4090 #define stat_update_max_atomic_write(inode) do { } while (0)
4091 #define stat_inc_meta_count(sbi, blkaddr) do { } while (0)
4092 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
4093 #define stat_inc_block_count(sbi, curseg) do { } while (0)
4094 #define stat_inc_inplace_blocks(sbi) do { } while (0)
4095 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
4096 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
4097 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
4098 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
4100 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
4101 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
4102 static inline void __init f2fs_create_root_stats(void) { }
4103 static inline void f2fs_destroy_root_stats(void) { }
4104 static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
4107 extern const struct file_operations f2fs_dir_operations;
4108 extern const struct file_operations f2fs_file_operations;
4109 extern const struct inode_operations f2fs_file_inode_operations;
4110 extern const struct address_space_operations f2fs_dblock_aops;
4111 extern const struct address_space_operations f2fs_node_aops;
4112 extern const struct address_space_operations f2fs_meta_aops;
4113 extern const struct inode_operations f2fs_dir_inode_operations;
4114 extern const struct inode_operations f2fs_symlink_inode_operations;
4115 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
4116 extern const struct inode_operations f2fs_special_inode_operations;
4117 extern struct kmem_cache *f2fs_inode_entry_slab;
4122 bool f2fs_may_inline_data(struct inode *inode);
4123 bool f2fs_sanity_check_inline_data(struct inode *inode);
4124 bool f2fs_may_inline_dentry(struct inode *inode);
4125 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
4126 void f2fs_truncate_inline_inode(struct inode *inode,
4127 struct page *ipage, u64 from);
4128 int f2fs_read_inline_data(struct inode *inode, struct page *page);
4129 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
4130 int f2fs_convert_inline_inode(struct inode *inode);
4131 int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
4132 int f2fs_write_inline_data(struct inode *inode, struct page *page);
4133 int f2fs_recover_inline_data(struct inode *inode, struct page *npage);
4134 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
4135 const struct f2fs_filename *fname,
4136 struct page **res_page);
4137 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
4138 struct page *ipage);
4139 int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
4140 struct inode *inode, nid_t ino, umode_t mode);
4141 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
4142 struct page *page, struct inode *dir,
4143 struct inode *inode);
4144 bool f2fs_empty_inline_dir(struct inode *dir);
4145 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
4146 struct fscrypt_str *fstr);
4147 int f2fs_inline_data_fiemap(struct inode *inode,
4148 struct fiemap_extent_info *fieinfo,
4149 __u64 start, __u64 len);
4154 unsigned long f2fs_shrink_count(struct shrinker *shrink,
4155 struct shrink_control *sc);
4156 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
4157 struct shrink_control *sc);
4158 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
4159 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
4164 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root_cached *root,
4165 struct rb_entry *cached_re, unsigned int ofs);
4166 struct rb_node **f2fs_lookup_rb_tree_ext(struct f2fs_sb_info *sbi,
4167 struct rb_root_cached *root,
4168 struct rb_node **parent,
4169 unsigned long long key, bool *left_most);
4170 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
4171 struct rb_root_cached *root,
4172 struct rb_node **parent,
4173 unsigned int ofs, bool *leftmost);
4174 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root_cached *root,
4175 struct rb_entry *cached_re, unsigned int ofs,
4176 struct rb_entry **prev_entry, struct rb_entry **next_entry,
4177 struct rb_node ***insert_p, struct rb_node **insert_parent,
4178 bool force, bool *leftmost);
4179 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
4180 struct rb_root_cached *root, bool check_key);
4181 void f2fs_init_extent_tree(struct inode *inode);
4182 void f2fs_drop_extent_tree(struct inode *inode);
4183 void f2fs_destroy_extent_node(struct inode *inode);
4184 void f2fs_destroy_extent_tree(struct inode *inode);
4185 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
4186 int __init f2fs_create_extent_cache(void);
4187 void f2fs_destroy_extent_cache(void);
4189 /* read extent cache ops */
4190 void f2fs_init_read_extent_tree(struct inode *inode, struct page *ipage);
4191 bool f2fs_lookup_read_extent_cache(struct inode *inode, pgoff_t pgofs,
4192 struct extent_info *ei);
4193 void f2fs_update_read_extent_cache(struct dnode_of_data *dn);
4194 void f2fs_update_read_extent_cache_range(struct dnode_of_data *dn,
4195 pgoff_t fofs, block_t blkaddr, unsigned int len);
4196 unsigned int f2fs_shrink_read_extent_tree(struct f2fs_sb_info *sbi,
4199 /* block age extent cache ops */
4200 void f2fs_init_age_extent_tree(struct inode *inode);
4201 bool f2fs_lookup_age_extent_cache(struct inode *inode, pgoff_t pgofs,
4202 struct extent_info *ei);
4203 void f2fs_update_age_extent_cache(struct dnode_of_data *dn);
4204 void f2fs_update_age_extent_cache_range(struct dnode_of_data *dn,
4205 pgoff_t fofs, unsigned int len);
4206 unsigned int f2fs_shrink_age_extent_tree(struct f2fs_sb_info *sbi,
4212 #define MIN_RA_MUL 2
4213 #define MAX_RA_MUL 256
4215 int __init f2fs_init_sysfs(void);
4216 void f2fs_exit_sysfs(void);
4217 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
4218 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
4221 extern const struct fsverity_operations f2fs_verityops;
4226 static inline bool f2fs_encrypted_file(struct inode *inode)
4228 return IS_ENCRYPTED(inode) && S_ISREG(inode->i_mode);
4231 static inline void f2fs_set_encrypted_inode(struct inode *inode)
4233 #ifdef CONFIG_FS_ENCRYPTION
4234 file_set_encrypt(inode);
4235 f2fs_set_inode_flags(inode);
4240 * Returns true if the reads of the inode's data need to undergo some
4241 * postprocessing step, like decryption or authenticity verification.
4243 static inline bool f2fs_post_read_required(struct inode *inode)
4245 return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
4246 f2fs_compressed_file(inode);
4252 #ifdef CONFIG_F2FS_FS_COMPRESSION
4253 bool f2fs_is_compressed_page(struct page *page);
4254 struct page *f2fs_compress_control_page(struct page *page);
4255 int f2fs_prepare_compress_overwrite(struct inode *inode,
4256 struct page **pagep, pgoff_t index, void **fsdata);
4257 bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
4258 pgoff_t index, unsigned copied);
4259 int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock);
4260 void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
4261 bool f2fs_is_compress_backend_ready(struct inode *inode);
4262 int f2fs_init_compress_mempool(void);
4263 void f2fs_destroy_compress_mempool(void);
4264 void f2fs_decompress_cluster(struct decompress_io_ctx *dic, bool in_task);
4265 void f2fs_end_read_compressed_page(struct page *page, bool failed,
4266 block_t blkaddr, bool in_task);
4267 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
4268 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
4269 bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct page **pages,
4270 int index, int nr_pages, bool uptodate);
4271 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
4272 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
4273 int f2fs_write_multi_pages(struct compress_ctx *cc,
4275 struct writeback_control *wbc,
4276 enum iostat_type io_type);
4277 int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
4278 void f2fs_update_read_extent_tree_range_compressed(struct inode *inode,
4279 pgoff_t fofs, block_t blkaddr,
4280 unsigned int llen, unsigned int c_len);
4281 int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
4282 unsigned nr_pages, sector_t *last_block_in_bio,
4283 bool is_readahead, bool for_write);
4284 struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
4285 void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed,
4287 void f2fs_put_page_dic(struct page *page, bool in_task);
4288 unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
4289 int f2fs_init_compress_ctx(struct compress_ctx *cc);
4290 void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
4291 void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
4292 int f2fs_init_compress_inode(struct f2fs_sb_info *sbi);
4293 void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi);
4294 int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi);
4295 void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi);
4296 int __init f2fs_init_compress_cache(void);
4297 void f2fs_destroy_compress_cache(void);
4298 struct address_space *COMPRESS_MAPPING(struct f2fs_sb_info *sbi);
4299 void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi, block_t blkaddr);
4300 void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4301 nid_t ino, block_t blkaddr);
4302 bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi, struct page *page,
4304 void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi, nid_t ino);
4305 #define inc_compr_inode_stat(inode) \
4307 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4308 sbi->compr_new_inode++; \
4310 #define add_compr_block_stat(inode, blocks) \
4312 struct f2fs_sb_info *sbi = F2FS_I_SB(inode); \
4313 int diff = F2FS_I(inode)->i_cluster_size - blocks; \
4314 sbi->compr_written_block += blocks; \
4315 sbi->compr_saved_block += diff; \
4318 static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
4319 static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
4321 if (!f2fs_compressed_file(inode))
4323 /* not support compression */
4326 static inline struct page *f2fs_compress_control_page(struct page *page)
4329 return ERR_PTR(-EINVAL);
4331 static inline int f2fs_init_compress_mempool(void) { return 0; }
4332 static inline void f2fs_destroy_compress_mempool(void) { }
4333 static inline void f2fs_decompress_cluster(struct decompress_io_ctx *dic,
4335 static inline void f2fs_end_read_compressed_page(struct page *page,
4336 bool failed, block_t blkaddr, bool in_task)
4340 static inline void f2fs_put_page_dic(struct page *page, bool in_task)
4344 static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
4345 static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
4346 static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
4347 static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
4348 static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
4349 static inline void f2fs_destroy_page_array_cache(struct f2fs_sb_info *sbi) { }
4350 static inline int __init f2fs_init_compress_cache(void) { return 0; }
4351 static inline void f2fs_destroy_compress_cache(void) { }
4352 static inline void f2fs_invalidate_compress_page(struct f2fs_sb_info *sbi,
4353 block_t blkaddr) { }
4354 static inline void f2fs_cache_compressed_page(struct f2fs_sb_info *sbi,
4355 struct page *page, nid_t ino, block_t blkaddr) { }
4356 static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
4357 struct page *page, block_t blkaddr) { return false; }
4358 static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
4360 #define inc_compr_inode_stat(inode) do { } while (0)
4361 static inline void f2fs_update_read_extent_tree_range_compressed(
4362 struct inode *inode,
4363 pgoff_t fofs, block_t blkaddr,
4364 unsigned int llen, unsigned int c_len) { }
4367 static inline int set_compress_context(struct inode *inode)
4369 #ifdef CONFIG_F2FS_FS_COMPRESSION
4370 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4372 F2FS_I(inode)->i_compress_algorithm =
4373 F2FS_OPTION(sbi).compress_algorithm;
4374 F2FS_I(inode)->i_log_cluster_size =
4375 F2FS_OPTION(sbi).compress_log_size;
4376 F2FS_I(inode)->i_compress_flag =
4377 F2FS_OPTION(sbi).compress_chksum ?
4378 1 << COMPRESS_CHKSUM : 0;
4379 F2FS_I(inode)->i_cluster_size =
4380 1 << F2FS_I(inode)->i_log_cluster_size;
4381 if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
4382 F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
4383 F2FS_OPTION(sbi).compress_level)
4384 F2FS_I(inode)->i_compress_flag |=
4385 F2FS_OPTION(sbi).compress_level <<
4386 COMPRESS_LEVEL_OFFSET;
4387 F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
4388 set_inode_flag(inode, FI_COMPRESSED_FILE);
4389 stat_inc_compr_inode(inode);
4390 inc_compr_inode_stat(inode);
4391 f2fs_mark_inode_dirty_sync(inode, true);
4398 static inline bool f2fs_disable_compressed_file(struct inode *inode)
4400 struct f2fs_inode_info *fi = F2FS_I(inode);
4402 if (!f2fs_compressed_file(inode))
4404 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
4407 fi->i_flags &= ~F2FS_COMPR_FL;
4408 stat_dec_compr_inode(inode);
4409 clear_inode_flag(inode, FI_COMPRESSED_FILE);
4410 f2fs_mark_inode_dirty_sync(inode, true);
4414 #define F2FS_FEATURE_FUNCS(name, flagname) \
4415 static inline bool f2fs_sb_has_##name(struct f2fs_sb_info *sbi) \
4417 return F2FS_HAS_FEATURE(sbi, F2FS_FEATURE_##flagname); \
4420 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
4421 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
4422 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
4423 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
4424 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
4425 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
4426 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
4427 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
4428 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
4429 F2FS_FEATURE_FUNCS(verity, VERITY);
4430 F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
4431 F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
4432 F2FS_FEATURE_FUNCS(compression, COMPRESSION);
4433 F2FS_FEATURE_FUNCS(readonly, RO);
4435 #ifdef CONFIG_BLK_DEV_ZONED
4436 static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
4439 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
4441 return test_bit(zno, FDEV(devi).blkz_seq);
4445 static inline bool f2fs_hw_should_discard(struct f2fs_sb_info *sbi)
4447 return f2fs_sb_has_blkzoned(sbi);
4450 static inline bool f2fs_bdev_support_discard(struct block_device *bdev)
4452 return bdev_max_discard_sectors(bdev) || bdev_is_zoned(bdev);
4455 static inline bool f2fs_hw_support_discard(struct f2fs_sb_info *sbi)
4459 if (!f2fs_is_multi_device(sbi))
4460 return f2fs_bdev_support_discard(sbi->sb->s_bdev);
4462 for (i = 0; i < sbi->s_ndevs; i++)
4463 if (f2fs_bdev_support_discard(FDEV(i).bdev))
4468 static inline bool f2fs_realtime_discard_enable(struct f2fs_sb_info *sbi)
4470 return (test_opt(sbi, DISCARD) && f2fs_hw_support_discard(sbi)) ||
4471 f2fs_hw_should_discard(sbi);
4474 static inline bool f2fs_hw_is_readonly(struct f2fs_sb_info *sbi)
4478 if (!f2fs_is_multi_device(sbi))
4479 return bdev_read_only(sbi->sb->s_bdev);
4481 for (i = 0; i < sbi->s_ndevs; i++)
4482 if (bdev_read_only(FDEV(i).bdev))
4487 static inline bool f2fs_lfs_mode(struct f2fs_sb_info *sbi)
4489 return F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS;
4492 static inline bool f2fs_low_mem_mode(struct f2fs_sb_info *sbi)
4494 return F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW;
4497 static inline bool f2fs_may_compress(struct inode *inode)
4499 if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
4500 f2fs_is_atomic_file(inode) || f2fs_has_inline_data(inode))
4502 return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
4505 static inline void f2fs_i_compr_blocks_update(struct inode *inode,
4506 u64 blocks, bool add)
4508 struct f2fs_inode_info *fi = F2FS_I(inode);
4509 int diff = fi->i_cluster_size - blocks;
4511 /* don't update i_compr_blocks if saved blocks were released */
4512 if (!add && !atomic_read(&fi->i_compr_blocks))
4516 atomic_add(diff, &fi->i_compr_blocks);
4517 stat_add_compr_blocks(inode, diff);
4519 atomic_sub(diff, &fi->i_compr_blocks);
4520 stat_sub_compr_blocks(inode, diff);
4522 f2fs_mark_inode_dirty_sync(inode, true);
4525 static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
4528 if (!f2fs_is_multi_device(sbi))
4530 if (flag != F2FS_GET_BLOCK_DIO)
4532 return sbi->aligned_blksize;
4535 static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx)
4537 return fsverity_active(inode) &&
4538 idx < DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
4541 #ifdef CONFIG_F2FS_FAULT_INJECTION
4542 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
4545 #define f2fs_build_fault_attr(sbi, rate, type) do { } while (0)
4548 static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
4551 if (f2fs_sb_has_quota_ino(sbi))
4553 if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
4554 F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
4555 F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
4561 static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
4563 return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
4566 static inline void f2fs_io_schedule_timeout(long timeout)
4568 set_current_state(TASK_UNINTERRUPTIBLE);
4569 io_schedule_timeout(timeout);
4572 static inline void f2fs_handle_page_eio(struct f2fs_sb_info *sbi, pgoff_t ofs,
4573 enum page_type type)
4575 if (unlikely(f2fs_cp_error(sbi)))
4578 if (ofs == sbi->page_eio_ofs[type]) {
4579 if (sbi->page_eio_cnt[type]++ == MAX_RETRY_PAGE_EIO)
4580 set_ckpt_flags(sbi, CP_ERROR_FLAG);
4582 sbi->page_eio_ofs[type] = ofs;
4583 sbi->page_eio_cnt[type] = 0;
4587 static inline bool f2fs_is_readonly(struct f2fs_sb_info *sbi)
4589 return f2fs_sb_has_readonly(sbi) || f2fs_readonly(sbi->sb);
4592 #define EFSBADCRC EBADMSG /* Bad CRC detected */
4593 #define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
4595 #endif /* _LINUX_F2FS_H */