4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 #include <linux/types.h>
15 #include <linux/page-flags.h>
16 #include <linux/buffer_head.h>
17 #include <linux/slab.h>
18 #include <linux/crc32.h>
19 #include <linux/magic.h>
20 #include <linux/kobject.h>
21 #include <linux/sched.h>
22 #include <linux/cred.h>
23 #include <linux/vmalloc.h>
24 #include <linux/bio.h>
25 #include <linux/blkdev.h>
26 #include <linux/quotaops.h>
27 #include <crypto/hash.h>
29 #define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
30 #include <linux/fscrypt.h>
32 #ifdef CONFIG_F2FS_CHECK_FS
33 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
35 #define f2fs_bug_on(sbi, condition) \
37 if (unlikely(condition)) { \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
44 #ifdef CONFIG_F2FS_FAULT_INJECTION
62 struct f2fs_fault_info {
64 unsigned int inject_rate;
65 unsigned int inject_type;
68 extern char *fault_name[FAULT_MAX];
69 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
75 #define F2FS_MOUNT_BG_GC 0x00000001
76 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
77 #define F2FS_MOUNT_DISCARD 0x00000004
78 #define F2FS_MOUNT_NOHEAP 0x00000008
79 #define F2FS_MOUNT_XATTR_USER 0x00000010
80 #define F2FS_MOUNT_POSIX_ACL 0x00000020
81 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
82 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
83 #define F2FS_MOUNT_INLINE_DATA 0x00000100
84 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
85 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
86 #define F2FS_MOUNT_NOBARRIER 0x00000800
87 #define F2FS_MOUNT_FASTBOOT 0x00001000
88 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
89 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
90 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
91 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
92 #define F2FS_MOUNT_ADAPTIVE 0x00020000
93 #define F2FS_MOUNT_LFS 0x00040000
94 #define F2FS_MOUNT_USRQUOTA 0x00080000
95 #define F2FS_MOUNT_GRPQUOTA 0x00100000
96 #define F2FS_MOUNT_PRJQUOTA 0x00200000
97 #define F2FS_MOUNT_QUOTA 0x00400000
98 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
99 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
101 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
102 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
103 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
104 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
106 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
107 typecheck(unsigned long long, b) && \
108 ((long long)((a) - (b)) > 0))
110 typedef u32 block_t; /*
111 * should not change u32, since it is the on-disk block
112 * address format, __le32.
116 struct f2fs_mount_info {
118 int write_io_size_bits; /* Write IO size bits */
119 block_t root_reserved_blocks; /* root reserved blocks */
120 kuid_t s_resuid; /* reserved blocks for uid */
121 kgid_t s_resgid; /* reserved blocks for gid */
122 int active_logs; /* # of active logs */
123 int inline_xattr_size; /* inline xattr size */
124 #ifdef CONFIG_F2FS_FAULT_INJECTION
125 struct f2fs_fault_info fault_info; /* For fault injection */
128 /* Names of quota files with journalled quota */
129 char *s_qf_names[MAXQUOTAS];
130 int s_jquota_fmt; /* Format of quota to use */
132 /* For which write hints are passed down to block layer */
134 int alloc_mode; /* segment allocation policy */
135 int fsync_mode; /* fsync policy */
136 bool test_dummy_encryption; /* test dummy encryption */
139 #define F2FS_FEATURE_ENCRYPT 0x0001
140 #define F2FS_FEATURE_BLKZONED 0x0002
141 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
142 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
143 #define F2FS_FEATURE_PRJQUOTA 0x0010
144 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
145 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
146 #define F2FS_FEATURE_QUOTA_INO 0x0080
147 #define F2FS_FEATURE_INODE_CRTIME 0x0100
148 #define F2FS_FEATURE_LOST_FOUND 0x0200
149 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */
151 #define F2FS_HAS_FEATURE(sb, mask) \
152 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
153 #define F2FS_SET_FEATURE(sb, mask) \
154 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
155 #define F2FS_CLEAR_FEATURE(sb, mask) \
156 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
159 * Default values for user and/or group using reserved blocks
161 #define F2FS_DEF_RESUID 0
162 #define F2FS_DEF_RESGID 0
165 * For checkpoint manager
172 #define CP_UMOUNT 0x00000001
173 #define CP_FASTBOOT 0x00000002
174 #define CP_SYNC 0x00000004
175 #define CP_RECOVERY 0x00000008
176 #define CP_DISCARD 0x00000010
177 #define CP_TRIMMED 0x00000020
179 #define DEF_BATCHED_TRIM_SECTIONS 2048
180 #define BATCHED_TRIM_SEGMENTS(sbi) \
181 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
182 #define BATCHED_TRIM_BLOCKS(sbi) \
183 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
184 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
185 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
186 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
187 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
188 #define DEF_CP_INTERVAL 60 /* 60 secs */
189 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
199 * For CP/NAT/SIT/SSA readahead
209 /* for the list of ino */
211 ORPHAN_INO, /* for orphan ino list */
212 APPEND_INO, /* for append ino list */
213 UPDATE_INO, /* for update ino list */
214 TRANS_DIR_INO, /* for trasactions dir ino list */
215 FLUSH_INO, /* for multiple device flushing */
216 MAX_INO_ENTRY, /* max. list */
220 struct list_head list; /* list head */
221 nid_t ino; /* inode number */
222 unsigned int dirty_device; /* dirty device bitmap */
225 /* for the list of inodes to be GCed */
227 struct list_head list; /* list head */
228 struct inode *inode; /* vfs inode pointer */
231 /* for the bitmap indicate blocks to be discarded */
232 struct discard_entry {
233 struct list_head list; /* list head */
234 block_t start_blkaddr; /* start blockaddr of current segment */
235 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
238 /* default discard granularity of inner discard thread, unit: block count */
239 #define DEFAULT_DISCARD_GRANULARITY 16
241 /* max discard pend list number */
242 #define MAX_PLIST_NUM 512
243 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
244 (MAX_PLIST_NUM - 1) : (blk_num - 1))
252 struct discard_info {
253 block_t lstart; /* logical start address */
254 block_t len; /* length */
255 block_t start; /* actual start address in dev */
259 struct rb_node rb_node; /* rb node located in rb-tree */
262 block_t lstart; /* logical start address */
263 block_t len; /* length */
264 block_t start; /* actual start address in dev */
266 struct discard_info di; /* discard info */
269 struct list_head list; /* command list */
270 struct completion wait; /* compleation */
271 struct block_device *bdev; /* bdev */
272 unsigned short ref; /* reference count */
273 unsigned char state; /* state */
274 int error; /* bio error */
285 struct discard_policy {
286 int type; /* type of discard */
287 unsigned int min_interval; /* used for candidates exist */
288 unsigned int max_interval; /* used for candidates not exist */
289 unsigned int max_requests; /* # of discards issued per round */
290 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
291 bool io_aware; /* issue discard in idle time */
292 bool sync; /* submit discard with REQ_SYNC flag */
293 unsigned int granularity; /* discard granularity */
296 struct discard_cmd_control {
297 struct task_struct *f2fs_issue_discard; /* discard thread */
298 struct list_head entry_list; /* 4KB discard entry list */
299 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
300 struct list_head wait_list; /* store on-flushing entries */
301 struct list_head fstrim_list; /* in-flight discard from fstrim */
302 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
303 unsigned int discard_wake; /* to wake up discard thread */
304 struct mutex cmd_lock;
305 unsigned int nr_discards; /* # of discards in the list */
306 unsigned int max_discards; /* max. discards to be issued */
307 unsigned int discard_granularity; /* discard granularity */
308 unsigned int undiscard_blks; /* # of undiscard blocks */
309 atomic_t issued_discard; /* # of issued discard */
310 atomic_t issing_discard; /* # of issing discard */
311 atomic_t discard_cmd_cnt; /* # of cached cmd count */
312 struct rb_root root; /* root of discard rb-tree */
315 /* for the list of fsync inodes, used only during recovery */
316 struct fsync_inode_entry {
317 struct list_head list; /* list head */
318 struct inode *inode; /* vfs inode pointer */
319 block_t blkaddr; /* block address locating the last fsync */
320 block_t last_dentry; /* block address locating the last dentry */
323 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
324 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
326 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
327 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
328 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
329 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
331 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
332 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
334 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
336 int before = nats_in_cursum(journal);
338 journal->n_nats = cpu_to_le16(before + i);
342 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
344 int before = sits_in_cursum(journal);
346 journal->n_sits = cpu_to_le16(before + i);
350 static inline bool __has_cursum_space(struct f2fs_journal *journal,
353 if (type == NAT_JOURNAL)
354 return size <= MAX_NAT_JENTRIES(journal);
355 return size <= MAX_SIT_JENTRIES(journal);
361 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
362 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
363 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
365 #define F2FS_IOCTL_MAGIC 0xf5
366 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
367 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
368 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
369 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
370 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
371 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
372 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
373 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
374 struct f2fs_defragment)
375 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
376 struct f2fs_move_range)
377 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
378 struct f2fs_flush_device)
379 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
380 struct f2fs_gc_range)
381 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
382 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
383 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
384 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
386 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
387 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
388 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
391 * should be same as XFS_IOC_GOINGDOWN.
392 * Flags for going down operation used by FS_IOC_GOINGDOWN
394 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
395 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
396 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
397 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
398 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
400 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
402 * ioctl commands in 32 bit emulation
404 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
405 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
406 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
409 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
410 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
412 struct f2fs_gc_range {
418 struct f2fs_defragment {
423 struct f2fs_move_range {
424 u32 dst_fd; /* destination fd */
425 u64 pos_in; /* start position in src_fd */
426 u64 pos_out; /* start position in dst_fd */
427 u64 len; /* size to move */
430 struct f2fs_flush_device {
431 u32 dev_num; /* device number to flush */
432 u32 segments; /* # of segments to flush */
435 /* for inline stuff */
436 #define DEF_INLINE_RESERVED_SIZE 1
437 #define DEF_MIN_INLINE_SIZE 1
438 static inline int get_extra_isize(struct inode *inode);
439 static inline int get_inline_xattr_addrs(struct inode *inode);
440 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
441 (CUR_ADDRS_PER_INODE(inode) - \
442 get_inline_xattr_addrs(inode) - \
443 DEF_INLINE_RESERVED_SIZE))
446 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
447 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
449 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
450 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
451 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
452 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
453 NR_INLINE_DENTRY(inode) + \
454 INLINE_DENTRY_BITMAP_SIZE(inode)))
457 * For INODE and NODE manager
459 /* for directory operations */
460 struct f2fs_dentry_ptr {
463 struct f2fs_dir_entry *dentry;
464 __u8 (*filename)[F2FS_SLOT_LEN];
469 static inline void make_dentry_ptr_block(struct inode *inode,
470 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
473 d->max = NR_DENTRY_IN_BLOCK;
474 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
475 d->bitmap = t->dentry_bitmap;
476 d->dentry = t->dentry;
477 d->filename = t->filename;
480 static inline void make_dentry_ptr_inline(struct inode *inode,
481 struct f2fs_dentry_ptr *d, void *t)
483 int entry_cnt = NR_INLINE_DENTRY(inode);
484 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
485 int reserved_size = INLINE_RESERVED_SIZE(inode);
489 d->nr_bitmap = bitmap_size;
491 d->dentry = t + bitmap_size + reserved_size;
492 d->filename = t + bitmap_size + reserved_size +
493 SIZE_OF_DIR_ENTRY * entry_cnt;
497 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
498 * as its node offset to distinguish from index node blocks.
499 * But some bits are used to mark the node block.
501 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
504 ALLOC_NODE, /* allocate a new node page if needed */
505 LOOKUP_NODE, /* look up a node without readahead */
507 * look up a node with readahead called
512 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
514 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
516 /* vector size for gang look-up from extent cache that consists of radix tree */
517 #define EXT_TREE_VEC_SIZE 64
519 /* for in-memory extent cache entry */
520 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
522 /* number of extent info in extent cache we try to shrink */
523 #define EXTENT_CACHE_SHRINK_NUMBER 128
526 struct rb_node rb_node; /* rb node located in rb-tree */
527 unsigned int ofs; /* start offset of the entry */
528 unsigned int len; /* length of the entry */
532 unsigned int fofs; /* start offset in a file */
533 unsigned int len; /* length of the extent */
534 u32 blk; /* start block address of the extent */
538 struct rb_node rb_node;
545 struct extent_info ei; /* extent info */
548 struct list_head list; /* node in global extent list of sbi */
549 struct extent_tree *et; /* extent tree pointer */
553 nid_t ino; /* inode number */
554 struct rb_root root; /* root of extent info rb-tree */
555 struct extent_node *cached_en; /* recently accessed extent node */
556 struct extent_info largest; /* largested extent info */
557 struct list_head list; /* to be used by sbi->zombie_list */
558 rwlock_t lock; /* protect extent info rb-tree */
559 atomic_t node_cnt; /* # of extent node in rb-tree*/
563 * This structure is taken from ext4_map_blocks.
565 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
567 #define F2FS_MAP_NEW (1 << BH_New)
568 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
569 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
570 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
573 struct f2fs_map_blocks {
577 unsigned int m_flags;
578 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
579 pgoff_t *m_next_extent; /* point to next possible extent */
583 /* for flag in get_data_block */
585 F2FS_GET_BLOCK_DEFAULT,
586 F2FS_GET_BLOCK_FIEMAP,
588 F2FS_GET_BLOCK_PRE_DIO,
589 F2FS_GET_BLOCK_PRE_AIO,
590 F2FS_GET_BLOCK_PRECACHE,
594 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
596 #define FADVISE_COLD_BIT 0x01
597 #define FADVISE_LOST_PINO_BIT 0x02
598 #define FADVISE_ENCRYPT_BIT 0x04
599 #define FADVISE_ENC_NAME_BIT 0x08
600 #define FADVISE_KEEP_SIZE_BIT 0x10
601 #define FADVISE_HOT_BIT 0x20
602 #define FADVISE_VERITY_BIT 0x40 /* reserved */
604 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
605 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
606 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
607 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
608 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
609 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
610 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
611 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
612 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
613 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
614 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
615 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
616 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
617 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
618 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
619 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
621 #define DEF_DIR_LEVEL 0
623 struct f2fs_inode_info {
624 struct inode vfs_inode; /* serve a vfs inode */
625 unsigned long i_flags; /* keep an inode flags for ioctl */
626 unsigned char i_advise; /* use to give file attribute hints */
627 unsigned char i_dir_level; /* use for dentry level for large dir */
629 unsigned int i_current_depth; /* only for directory depth */
630 unsigned short i_gc_failures; /* only for regular file */
632 unsigned int i_pino; /* parent inode number */
633 umode_t i_acl_mode; /* keep file acl mode temporarily */
635 /* Use below internally in f2fs*/
636 unsigned long flags; /* use to pass per-file flags */
637 struct rw_semaphore i_sem; /* protect fi info */
638 atomic_t dirty_pages; /* # of dirty pages */
639 f2fs_hash_t chash; /* hash value of given file name */
640 unsigned int clevel; /* maximum level of given file name */
641 struct task_struct *task; /* lookup and create consistency */
642 struct task_struct *cp_task; /* separate cp/wb IO stats*/
643 nid_t i_xattr_nid; /* node id that contains xattrs */
644 loff_t last_disk_size; /* lastly written file size */
647 struct dquot *i_dquot[MAXQUOTAS];
649 /* quota space reservation, managed internally by quota code */
650 qsize_t i_reserved_quota;
652 struct list_head dirty_list; /* dirty list for dirs and files */
653 struct list_head gdirty_list; /* linked in global dirty list */
654 struct list_head inmem_ilist; /* list for inmem inodes */
655 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
656 struct task_struct *inmem_task; /* store inmemory task */
657 struct mutex inmem_lock; /* lock for inmemory pages */
658 struct extent_tree *extent_tree; /* cached extent_tree entry */
659 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
660 struct rw_semaphore i_mmap_sem;
661 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
663 int i_extra_isize; /* size of extra space located in i_addr */
664 kprojid_t i_projid; /* id for project quota */
665 int i_inline_xattr_size; /* inline xattr size */
666 struct timespec i_crtime; /* inode creation time */
667 struct timespec i_disk_time[4]; /* inode disk times */
670 static inline void get_extent_info(struct extent_info *ext,
671 struct f2fs_extent *i_ext)
673 ext->fofs = le32_to_cpu(i_ext->fofs);
674 ext->blk = le32_to_cpu(i_ext->blk);
675 ext->len = le32_to_cpu(i_ext->len);
678 static inline void set_raw_extent(struct extent_info *ext,
679 struct f2fs_extent *i_ext)
681 i_ext->fofs = cpu_to_le32(ext->fofs);
682 i_ext->blk = cpu_to_le32(ext->blk);
683 i_ext->len = cpu_to_le32(ext->len);
686 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
687 u32 blk, unsigned int len)
694 static inline bool __is_discard_mergeable(struct discard_info *back,
695 struct discard_info *front)
697 return back->lstart + back->len == front->lstart;
700 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
701 struct discard_info *back)
703 return __is_discard_mergeable(back, cur);
706 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
707 struct discard_info *front)
709 return __is_discard_mergeable(cur, front);
712 static inline bool __is_extent_mergeable(struct extent_info *back,
713 struct extent_info *front)
715 return (back->fofs + back->len == front->fofs &&
716 back->blk + back->len == front->blk);
719 static inline bool __is_back_mergeable(struct extent_info *cur,
720 struct extent_info *back)
722 return __is_extent_mergeable(back, cur);
725 static inline bool __is_front_mergeable(struct extent_info *cur,
726 struct extent_info *front)
728 return __is_extent_mergeable(cur, front);
731 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
732 static inline void __try_update_largest_extent(struct inode *inode,
733 struct extent_tree *et, struct extent_node *en)
735 if (en->ei.len > et->largest.len) {
736 et->largest = en->ei;
737 f2fs_mark_inode_dirty_sync(inode, true);
742 * For free nid management
745 FREE_NID, /* newly added to free nid list */
746 PREALLOC_NID, /* it is preallocated */
750 struct f2fs_nm_info {
751 block_t nat_blkaddr; /* base disk address of NAT */
752 nid_t max_nid; /* maximum possible node ids */
753 nid_t available_nids; /* # of available node ids */
754 nid_t next_scan_nid; /* the next nid to be scanned */
755 unsigned int ram_thresh; /* control the memory footprint */
756 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
757 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
759 /* NAT cache management */
760 struct radix_tree_root nat_root;/* root of the nat entry cache */
761 struct radix_tree_root nat_set_root;/* root of the nat set cache */
762 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
763 struct list_head nat_entries; /* cached nat entry list (clean) */
764 unsigned int nat_cnt; /* the # of cached nat entries */
765 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
766 unsigned int nat_blocks; /* # of nat blocks */
768 /* free node ids management */
769 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
770 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
771 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
772 spinlock_t nid_list_lock; /* protect nid lists ops */
773 struct mutex build_lock; /* lock for build free nids */
774 unsigned char **free_nid_bitmap;
775 unsigned char *nat_block_bitmap;
776 unsigned short *free_nid_count; /* free nid count of NAT block */
779 char *nat_bitmap; /* NAT bitmap pointer */
781 unsigned int nat_bits_blocks; /* # of nat bits blocks */
782 unsigned char *nat_bits; /* NAT bits blocks */
783 unsigned char *full_nat_bits; /* full NAT pages */
784 unsigned char *empty_nat_bits; /* empty NAT pages */
785 #ifdef CONFIG_F2FS_CHECK_FS
786 char *nat_bitmap_mir; /* NAT bitmap mirror */
788 int bitmap_size; /* bitmap size */
792 * this structure is used as one of function parameters.
793 * all the information are dedicated to a given direct node block determined
794 * by the data offset in a file.
796 struct dnode_of_data {
797 struct inode *inode; /* vfs inode pointer */
798 struct page *inode_page; /* its inode page, NULL is possible */
799 struct page *node_page; /* cached direct node page */
800 nid_t nid; /* node id of the direct node block */
801 unsigned int ofs_in_node; /* data offset in the node page */
802 bool inode_page_locked; /* inode page is locked or not */
803 bool node_changed; /* is node block changed */
804 char cur_level; /* level of hole node page */
805 char max_level; /* level of current page located */
806 block_t data_blkaddr; /* block address of the node block */
809 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
810 struct page *ipage, struct page *npage, nid_t nid)
812 memset(dn, 0, sizeof(*dn));
814 dn->inode_page = ipage;
815 dn->node_page = npage;
822 * By default, there are 6 active log areas across the whole main area.
823 * When considering hot and cold data separation to reduce cleaning overhead,
824 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
826 * In the current design, you should not change the numbers intentionally.
827 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
828 * logs individually according to the underlying devices. (default: 6)
829 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
830 * data and 8 for node logs.
832 #define NR_CURSEG_DATA_TYPE (3)
833 #define NR_CURSEG_NODE_TYPE (3)
834 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
837 CURSEG_HOT_DATA = 0, /* directory entry blocks */
838 CURSEG_WARM_DATA, /* data blocks */
839 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
840 CURSEG_HOT_NODE, /* direct node blocks of directory files */
841 CURSEG_WARM_NODE, /* direct node blocks of normal files */
842 CURSEG_COLD_NODE, /* indirect node blocks */
847 struct completion wait;
848 struct llist_node llnode;
853 struct flush_cmd_control {
854 struct task_struct *f2fs_issue_flush; /* flush thread */
855 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
856 atomic_t issued_flush; /* # of issued flushes */
857 atomic_t issing_flush; /* # of issing flushes */
858 struct llist_head issue_list; /* list for command issue */
859 struct llist_node *dispatch_list; /* list for command dispatch */
862 struct f2fs_sm_info {
863 struct sit_info *sit_info; /* whole segment information */
864 struct free_segmap_info *free_info; /* free segment information */
865 struct dirty_seglist_info *dirty_info; /* dirty segment information */
866 struct curseg_info *curseg_array; /* active segment information */
868 struct rw_semaphore curseg_lock; /* for preventing curseg change */
870 block_t seg0_blkaddr; /* block address of 0'th segment */
871 block_t main_blkaddr; /* start block address of main area */
872 block_t ssa_blkaddr; /* start block address of SSA area */
874 unsigned int segment_count; /* total # of segments */
875 unsigned int main_segments; /* # of segments in main area */
876 unsigned int reserved_segments; /* # of reserved segments */
877 unsigned int ovp_segments; /* # of overprovision segments */
879 /* a threshold to reclaim prefree segments */
880 unsigned int rec_prefree_segments;
882 /* for batched trimming */
883 unsigned int trim_sections; /* # of sections to trim */
885 struct list_head sit_entry_set; /* sit entry set list */
887 unsigned int ipu_policy; /* in-place-update policy */
888 unsigned int min_ipu_util; /* in-place-update threshold */
889 unsigned int min_fsync_blocks; /* threshold for fsync */
890 unsigned int min_hot_blocks; /* threshold for hot block allocation */
891 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
893 /* for flush command control */
894 struct flush_cmd_control *fcc_info;
896 /* for discard command control */
897 struct discard_cmd_control *dcc_info;
904 * COUNT_TYPE for monitoring
906 * f2fs monitors the number of several block types such as on-writeback,
907 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
909 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
924 * The below are the page types of bios used in submit_bio().
925 * The available types are:
926 * DATA User data pages. It operates as async mode.
927 * NODE Node pages. It operates as async mode.
928 * META FS metadata pages such as SIT, NAT, CP.
929 * NR_PAGE_TYPE The number of page types.
930 * META_FLUSH Make sure the previous pages are written
931 * with waiting the bio's completion
932 * ... Only can be used with META.
934 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
941 INMEM, /* the below types are used by tracepoints only. */
950 HOT = 0, /* must be zero for meta bio */
956 enum need_lock_type {
962 enum cp_reason_type {
976 APP_DIRECT_IO, /* app direct IOs */
977 APP_BUFFERED_IO, /* app buffered IOs */
978 APP_WRITE_IO, /* app write IOs */
979 APP_MAPPED_IO, /* app mapped IOs */
980 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
981 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
982 FS_META_IO, /* meta IOs from kworker/reclaimer */
983 FS_GC_DATA_IO, /* data IOs from forground gc */
984 FS_GC_NODE_IO, /* node IOs from forground gc */
985 FS_CP_DATA_IO, /* data IOs from checkpoint */
986 FS_CP_NODE_IO, /* node IOs from checkpoint */
987 FS_CP_META_IO, /* meta IOs from checkpoint */
988 FS_DISCARD, /* discard */
992 struct f2fs_io_info {
993 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
994 nid_t ino; /* inode number */
995 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
996 enum temp_type temp; /* contains HOT/WARM/COLD */
997 int op; /* contains REQ_OP_ */
998 int op_flags; /* req_flag_bits */
999 block_t new_blkaddr; /* new block address to be written */
1000 block_t old_blkaddr; /* old block address before Cow */
1001 struct page *page; /* page to be written */
1002 struct page *encrypted_page; /* encrypted page */
1003 struct list_head list; /* serialize IOs */
1004 bool submitted; /* indicate IO submission */
1005 int need_lock; /* indicate we need to lock cp_rwsem */
1006 bool in_list; /* indicate fio is in io_list */
1007 bool is_meta; /* indicate borrow meta inode mapping or not */
1008 enum iostat_type io_type; /* io type */
1009 struct writeback_control *io_wbc; /* writeback control */
1012 #define is_read_io(rw) ((rw) == READ)
1013 struct f2fs_bio_info {
1014 struct f2fs_sb_info *sbi; /* f2fs superblock */
1015 struct bio *bio; /* bios to merge */
1016 sector_t last_block_in_bio; /* last block number */
1017 struct f2fs_io_info fio; /* store buffered io info. */
1018 struct rw_semaphore io_rwsem; /* blocking op for bio */
1019 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1020 struct list_head io_list; /* track fios */
1023 #define FDEV(i) (sbi->devs[i])
1024 #define RDEV(i) (raw_super->devs[i])
1025 struct f2fs_dev_info {
1026 struct block_device *bdev;
1027 char path[MAX_PATH_LEN];
1028 unsigned int total_segments;
1031 #ifdef CONFIG_BLK_DEV_ZONED
1032 unsigned int nr_blkz; /* Total number of zones */
1033 u8 *blkz_type; /* Array of zones type */
1038 DIR_INODE, /* for dirty dir inode */
1039 FILE_INODE, /* for dirty regular/symlink inode */
1040 DIRTY_META, /* for all dirtied inode metadata */
1041 ATOMIC_FILE, /* for all atomic files */
1045 /* for inner inode cache management */
1046 struct inode_management {
1047 struct radix_tree_root ino_root; /* ino entry array */
1048 spinlock_t ino_lock; /* for ino entry lock */
1049 struct list_head ino_list; /* inode list head */
1050 unsigned long ino_num; /* number of entries */
1053 /* For s_flag in struct f2fs_sb_info */
1055 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1056 SBI_IS_CLOSE, /* specify unmounting */
1057 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1058 SBI_POR_DOING, /* recovery is doing or not */
1059 SBI_NEED_SB_WRITE, /* need to recover superblock */
1060 SBI_NEED_CP, /* need to checkpoint */
1070 WHINT_MODE_OFF, /* not pass down write hints */
1071 WHINT_MODE_USER, /* try to pass down hints given by users */
1072 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1076 ALLOC_MODE_DEFAULT, /* stay default */
1077 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1081 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1082 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1085 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1086 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1087 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1089 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1092 struct f2fs_sb_info {
1093 struct super_block *sb; /* pointer to VFS super block */
1094 struct proc_dir_entry *s_proc; /* proc entry */
1095 struct f2fs_super_block *raw_super; /* raw super block pointer */
1096 struct rw_semaphore sb_lock; /* lock for raw super block */
1097 int valid_super_block; /* valid super block no */
1098 unsigned long s_flag; /* flags for sbi */
1100 #ifdef CONFIG_BLK_DEV_ZONED
1101 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1102 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1105 /* for node-related operations */
1106 struct f2fs_nm_info *nm_info; /* node manager */
1107 struct inode *node_inode; /* cache node blocks */
1109 /* for segment-related operations */
1110 struct f2fs_sm_info *sm_info; /* segment manager */
1112 /* for bio operations */
1113 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1114 struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
1115 /* bio ordering for NODE/DATA */
1116 mempool_t *write_io_dummy; /* Dummy pages */
1118 /* for checkpoint */
1119 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1120 int cur_cp_pack; /* remain current cp pack */
1121 spinlock_t cp_lock; /* for flag in ckpt */
1122 struct inode *meta_inode; /* cache meta blocks */
1123 struct mutex cp_mutex; /* checkpoint procedure lock */
1124 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1125 struct rw_semaphore node_write; /* locking node writes */
1126 struct rw_semaphore node_change; /* locking node change */
1127 wait_queue_head_t cp_wait;
1128 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1129 long interval_time[MAX_TIME]; /* to store thresholds */
1131 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1133 /* for orphan inode, use 0'th array */
1134 unsigned int max_orphans; /* max orphan inodes */
1136 /* for inode management */
1137 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1138 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1140 /* for extent tree cache */
1141 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1142 struct mutex extent_tree_lock; /* locking extent radix tree */
1143 struct list_head extent_list; /* lru list for shrinker */
1144 spinlock_t extent_lock; /* locking extent lru list */
1145 atomic_t total_ext_tree; /* extent tree count */
1146 struct list_head zombie_list; /* extent zombie tree list */
1147 atomic_t total_zombie_tree; /* extent zombie tree count */
1148 atomic_t total_ext_node; /* extent info count */
1150 /* basic filesystem units */
1151 unsigned int log_sectors_per_block; /* log2 sectors per block */
1152 unsigned int log_blocksize; /* log2 block size */
1153 unsigned int blocksize; /* block size */
1154 unsigned int root_ino_num; /* root inode number*/
1155 unsigned int node_ino_num; /* node inode number*/
1156 unsigned int meta_ino_num; /* meta inode number*/
1157 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1158 unsigned int blocks_per_seg; /* blocks per segment */
1159 unsigned int segs_per_sec; /* segments per section */
1160 unsigned int secs_per_zone; /* sections per zone */
1161 unsigned int total_sections; /* total section count */
1162 unsigned int total_node_count; /* total node block count */
1163 unsigned int total_valid_node_count; /* valid node block count */
1164 loff_t max_file_blocks; /* max block index of file */
1165 int dir_level; /* directory level */
1166 unsigned int trigger_ssr_threshold; /* threshold to trigger ssr */
1167 int readdir_ra; /* readahead inode in readdir */
1169 block_t user_block_count; /* # of user blocks */
1170 block_t total_valid_block_count; /* # of valid blocks */
1171 block_t discard_blks; /* discard command candidats */
1172 block_t last_valid_block_count; /* for recovery */
1173 block_t reserved_blocks; /* configurable reserved blocks */
1174 block_t current_reserved_blocks; /* current reserved blocks */
1176 unsigned int nquota_files; /* # of quota sysfile */
1178 u32 s_next_generation; /* for NFS support */
1180 /* # of pages, see count_type */
1181 atomic_t nr_pages[NR_COUNT_TYPE];
1182 /* # of allocated blocks */
1183 struct percpu_counter alloc_valid_block_count;
1185 /* writeback control */
1186 atomic_t wb_sync_req; /* count # of WB_SYNC threads */
1188 /* valid inode count */
1189 struct percpu_counter total_valid_inode_count;
1191 struct f2fs_mount_info mount_opt; /* mount options */
1193 /* for cleaning operations */
1194 struct mutex gc_mutex; /* mutex for GC */
1195 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1196 unsigned int cur_victim_sec; /* current victim section num */
1198 /* threshold for converting bg victims for fg */
1201 /* threshold for gc trials on pinned files */
1202 u64 gc_pin_file_threshold;
1204 /* maximum # of trials to find a victim segment for SSR and GC */
1205 unsigned int max_victim_search;
1208 * for stat information.
1209 * one is for the LFS mode, and the other is for the SSR mode.
1211 #ifdef CONFIG_F2FS_STAT_FS
1212 struct f2fs_stat_info *stat_info; /* FS status information */
1213 unsigned int segment_count[2]; /* # of allocated segments */
1214 unsigned int block_count[2]; /* # of allocated blocks */
1215 atomic_t inplace_count; /* # of inplace update */
1216 atomic64_t total_hit_ext; /* # of lookup extent cache */
1217 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1218 atomic64_t read_hit_largest; /* # of hit largest extent node */
1219 atomic64_t read_hit_cached; /* # of hit cached extent node */
1220 atomic_t inline_xattr; /* # of inline_xattr inodes */
1221 atomic_t inline_inode; /* # of inline_data inodes */
1222 atomic_t inline_dir; /* # of inline_dentry inodes */
1223 atomic_t aw_cnt; /* # of atomic writes */
1224 atomic_t vw_cnt; /* # of volatile writes */
1225 atomic_t max_aw_cnt; /* max # of atomic writes */
1226 atomic_t max_vw_cnt; /* max # of volatile writes */
1227 int bg_gc; /* background gc calls */
1228 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1230 spinlock_t stat_lock; /* lock for stat operations */
1232 /* For app/fs IO statistics */
1233 spinlock_t iostat_lock;
1234 unsigned long long write_iostat[NR_IO_TYPE];
1237 /* For sysfs suppport */
1238 struct kobject s_kobj;
1239 struct completion s_kobj_unregister;
1241 /* For shrinker support */
1242 struct list_head s_list;
1243 int s_ndevs; /* number of devices */
1244 struct f2fs_dev_info *devs; /* for device list */
1245 unsigned int dirty_device; /* for checkpoint data flush */
1246 spinlock_t dev_lock; /* protect dirty_device */
1247 struct mutex umount_mutex;
1248 unsigned int shrinker_run_no;
1250 /* For write statistics */
1251 u64 sectors_written_start;
1254 /* Reference to checksum algorithm driver via cryptoapi */
1255 struct crypto_shash *s_chksum_driver;
1257 /* Precomputed FS UUID checksum for seeding other checksums */
1258 __u32 s_chksum_seed;
1261 #ifdef CONFIG_F2FS_FAULT_INJECTION
1262 #define f2fs_show_injection_info(type) \
1263 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1264 KERN_INFO, fault_name[type], \
1265 __func__, __builtin_return_address(0))
1266 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1268 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1270 if (!ffi->inject_rate)
1273 if (!IS_FAULT_SET(ffi, type))
1276 atomic_inc(&ffi->inject_ops);
1277 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1278 atomic_set(&ffi->inject_ops, 0);
1285 /* For write statistics. Suppose sector size is 512 bytes,
1286 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1288 #define BD_PART_WRITTEN(s) \
1289 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1290 (s)->sectors_written_start) >> 1)
1292 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1294 sbi->last_time[type] = jiffies;
1297 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1299 unsigned long interval = sbi->interval_time[type] * HZ;
1301 return time_after(jiffies, sbi->last_time[type] + interval);
1304 static inline bool is_idle(struct f2fs_sb_info *sbi)
1306 struct block_device *bdev = sbi->sb->s_bdev;
1307 struct request_queue *q = bdev_get_queue(bdev);
1308 struct request_list *rl = &q->root_rl;
1310 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1313 return f2fs_time_over(sbi, REQ_TIME);
1319 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1320 const void *address, unsigned int length)
1323 struct shash_desc shash;
1328 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1330 desc.shash.tfm = sbi->s_chksum_driver;
1331 desc.shash.flags = 0;
1332 *(u32 *)desc.ctx = crc;
1334 err = crypto_shash_update(&desc.shash, address, length);
1337 return *(u32 *)desc.ctx;
1340 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1341 unsigned int length)
1343 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1346 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1347 void *buf, size_t buf_size)
1349 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1352 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1353 const void *address, unsigned int length)
1355 return __f2fs_crc32(sbi, crc, address, length);
1358 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1360 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1363 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1365 return sb->s_fs_info;
1368 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1370 return F2FS_SB(inode->i_sb);
1373 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1375 return F2FS_I_SB(mapping->host);
1378 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1380 return F2FS_M_SB(page->mapping);
1383 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1385 return (struct f2fs_super_block *)(sbi->raw_super);
1388 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1390 return (struct f2fs_checkpoint *)(sbi->ckpt);
1393 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1395 return (struct f2fs_node *)page_address(page);
1398 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1400 return &((struct f2fs_node *)page_address(page))->i;
1403 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1405 return (struct f2fs_nm_info *)(sbi->nm_info);
1408 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1410 return (struct f2fs_sm_info *)(sbi->sm_info);
1413 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1415 return (struct sit_info *)(SM_I(sbi)->sit_info);
1418 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1420 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1423 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1425 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1428 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1430 return sbi->meta_inode->i_mapping;
1433 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1435 return sbi->node_inode->i_mapping;
1438 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1440 return test_bit(type, &sbi->s_flag);
1443 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1445 set_bit(type, &sbi->s_flag);
1448 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1450 clear_bit(type, &sbi->s_flag);
1453 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1455 return le64_to_cpu(cp->checkpoint_ver);
1458 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1460 if (type < F2FS_MAX_QUOTAS)
1461 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1465 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1467 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1468 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1471 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1473 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1475 return ckpt_flags & f;
1478 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1480 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1483 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1485 unsigned int ckpt_flags;
1487 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1489 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1492 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1494 unsigned long flags;
1496 spin_lock_irqsave(&sbi->cp_lock, flags);
1497 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1498 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1501 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1503 unsigned int ckpt_flags;
1505 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1507 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1510 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1512 unsigned long flags;
1514 spin_lock_irqsave(&sbi->cp_lock, flags);
1515 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1516 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1519 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1521 unsigned long flags;
1523 set_sbi_flag(sbi, SBI_NEED_FSCK);
1526 spin_lock_irqsave(&sbi->cp_lock, flags);
1527 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1528 kfree(NM_I(sbi)->nat_bits);
1529 NM_I(sbi)->nat_bits = NULL;
1531 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1534 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1535 struct cp_control *cpc)
1537 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1539 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1542 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1544 down_read(&sbi->cp_rwsem);
1547 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1549 return down_read_trylock(&sbi->cp_rwsem);
1552 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1554 up_read(&sbi->cp_rwsem);
1557 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1559 down_write(&sbi->cp_rwsem);
1562 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1564 up_write(&sbi->cp_rwsem);
1567 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1569 int reason = CP_SYNC;
1571 if (test_opt(sbi, FASTBOOT))
1572 reason = CP_FASTBOOT;
1573 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1578 static inline bool __remain_node_summaries(int reason)
1580 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1583 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1585 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1586 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1590 * Check whether the given nid is within node id range.
1592 static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
1594 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1596 if (unlikely(nid >= NM_I(sbi)->max_nid))
1602 * Check whether the inode has blocks or not
1604 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1606 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1608 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1611 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1613 return ofs == XATTR_NODE_OFFSET;
1616 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1617 struct inode *inode)
1621 if (!test_opt(sbi, RESERVE_ROOT))
1623 if (IS_NOQUOTA(inode))
1625 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1627 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1628 in_group_p(F2FS_OPTION(sbi).s_resgid))
1630 if (capable(CAP_SYS_RESOURCE))
1635 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1636 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1637 struct inode *inode, blkcnt_t *count)
1639 blkcnt_t diff = 0, release = 0;
1640 block_t avail_user_block_count;
1643 ret = dquot_reserve_block(inode, *count);
1647 #ifdef CONFIG_F2FS_FAULT_INJECTION
1648 if (time_to_inject(sbi, FAULT_BLOCK)) {
1649 f2fs_show_injection_info(FAULT_BLOCK);
1655 * let's increase this in prior to actual block count change in order
1656 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1658 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1660 spin_lock(&sbi->stat_lock);
1661 sbi->total_valid_block_count += (block_t)(*count);
1662 avail_user_block_count = sbi->user_block_count -
1663 sbi->current_reserved_blocks;
1665 if (!__allow_reserved_blocks(sbi, inode))
1666 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1668 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1669 diff = sbi->total_valid_block_count - avail_user_block_count;
1674 sbi->total_valid_block_count -= diff;
1676 spin_unlock(&sbi->stat_lock);
1677 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
1681 spin_unlock(&sbi->stat_lock);
1683 if (unlikely(release))
1684 dquot_release_reservation_block(inode, release);
1685 f2fs_i_blocks_write(inode, *count, true, true);
1689 dquot_release_reservation_block(inode, release);
1693 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1694 struct inode *inode,
1697 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1699 spin_lock(&sbi->stat_lock);
1700 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1701 f2fs_bug_on(sbi, inode->i_blocks < sectors);
1702 sbi->total_valid_block_count -= (block_t)count;
1703 if (sbi->reserved_blocks &&
1704 sbi->current_reserved_blocks < sbi->reserved_blocks)
1705 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1706 sbi->current_reserved_blocks + count);
1707 spin_unlock(&sbi->stat_lock);
1708 f2fs_i_blocks_write(inode, count, false, true);
1711 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1713 atomic_inc(&sbi->nr_pages[count_type]);
1715 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1716 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1719 set_sbi_flag(sbi, SBI_IS_DIRTY);
1722 static inline void inode_inc_dirty_pages(struct inode *inode)
1724 atomic_inc(&F2FS_I(inode)->dirty_pages);
1725 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1726 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1727 if (IS_NOQUOTA(inode))
1728 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1731 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1733 atomic_dec(&sbi->nr_pages[count_type]);
1736 static inline void inode_dec_dirty_pages(struct inode *inode)
1738 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1739 !S_ISLNK(inode->i_mode))
1742 atomic_dec(&F2FS_I(inode)->dirty_pages);
1743 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1744 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1745 if (IS_NOQUOTA(inode))
1746 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1749 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1751 return atomic_read(&sbi->nr_pages[count_type]);
1754 static inline int get_dirty_pages(struct inode *inode)
1756 return atomic_read(&F2FS_I(inode)->dirty_pages);
1759 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1761 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1762 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1763 sbi->log_blocks_per_seg;
1765 return segs / sbi->segs_per_sec;
1768 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1770 return sbi->total_valid_block_count;
1773 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1775 return sbi->discard_blks;
1778 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1780 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1782 /* return NAT or SIT bitmap */
1783 if (flag == NAT_BITMAP)
1784 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1785 else if (flag == SIT_BITMAP)
1786 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1791 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1793 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1796 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1798 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1801 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1802 offset = (flag == SIT_BITMAP) ?
1803 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
1804 return &ckpt->sit_nat_version_bitmap + offset;
1807 if (__cp_payload(sbi) > 0) {
1808 if (flag == NAT_BITMAP)
1809 return &ckpt->sit_nat_version_bitmap;
1811 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1813 offset = (flag == NAT_BITMAP) ?
1814 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1815 return &ckpt->sit_nat_version_bitmap + offset;
1819 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1821 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1823 if (sbi->cur_cp_pack == 2)
1824 start_addr += sbi->blocks_per_seg;
1828 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1830 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1832 if (sbi->cur_cp_pack == 1)
1833 start_addr += sbi->blocks_per_seg;
1837 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1839 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1842 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1844 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1847 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
1848 struct inode *inode, bool is_inode)
1850 block_t valid_block_count;
1851 unsigned int valid_node_count;
1852 bool quota = inode && !is_inode;
1855 int ret = dquot_reserve_block(inode, 1);
1860 #ifdef CONFIG_F2FS_FAULT_INJECTION
1861 if (time_to_inject(sbi, FAULT_BLOCK)) {
1862 f2fs_show_injection_info(FAULT_BLOCK);
1867 spin_lock(&sbi->stat_lock);
1869 valid_block_count = sbi->total_valid_block_count +
1870 sbi->current_reserved_blocks + 1;
1872 if (!__allow_reserved_blocks(sbi, inode))
1873 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
1875 if (unlikely(valid_block_count > sbi->user_block_count)) {
1876 spin_unlock(&sbi->stat_lock);
1880 valid_node_count = sbi->total_valid_node_count + 1;
1881 if (unlikely(valid_node_count > sbi->total_node_count)) {
1882 spin_unlock(&sbi->stat_lock);
1886 sbi->total_valid_node_count++;
1887 sbi->total_valid_block_count++;
1888 spin_unlock(&sbi->stat_lock);
1892 f2fs_mark_inode_dirty_sync(inode, true);
1894 f2fs_i_blocks_write(inode, 1, true, true);
1897 percpu_counter_inc(&sbi->alloc_valid_block_count);
1902 dquot_release_reservation_block(inode, 1);
1906 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1907 struct inode *inode, bool is_inode)
1909 spin_lock(&sbi->stat_lock);
1911 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1912 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1913 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
1915 sbi->total_valid_node_count--;
1916 sbi->total_valid_block_count--;
1917 if (sbi->reserved_blocks &&
1918 sbi->current_reserved_blocks < sbi->reserved_blocks)
1919 sbi->current_reserved_blocks++;
1921 spin_unlock(&sbi->stat_lock);
1924 f2fs_i_blocks_write(inode, 1, false, true);
1927 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1929 return sbi->total_valid_node_count;
1932 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1934 percpu_counter_inc(&sbi->total_valid_inode_count);
1937 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1939 percpu_counter_dec(&sbi->total_valid_inode_count);
1942 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1944 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1947 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1948 pgoff_t index, bool for_write)
1950 #ifdef CONFIG_F2FS_FAULT_INJECTION
1951 struct page *page = find_lock_page(mapping, index);
1956 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1957 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
1962 return grab_cache_page(mapping, index);
1963 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1966 static inline struct page *f2fs_pagecache_get_page(
1967 struct address_space *mapping, pgoff_t index,
1968 int fgp_flags, gfp_t gfp_mask)
1970 #ifdef CONFIG_F2FS_FAULT_INJECTION
1971 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
1972 f2fs_show_injection_info(FAULT_PAGE_GET);
1976 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
1979 static inline void f2fs_copy_page(struct page *src, struct page *dst)
1981 char *src_kaddr = kmap(src);
1982 char *dst_kaddr = kmap(dst);
1984 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1989 static inline void f2fs_put_page(struct page *page, int unlock)
1995 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2001 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2004 f2fs_put_page(dn->node_page, 1);
2005 if (dn->inode_page && dn->node_page != dn->inode_page)
2006 f2fs_put_page(dn->inode_page, 0);
2007 dn->node_page = NULL;
2008 dn->inode_page = NULL;
2011 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2014 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2017 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2022 entry = kmem_cache_alloc(cachep, flags);
2024 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2028 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2029 int npages, bool no_fail)
2034 /* No failure on bio allocation */
2035 bio = bio_alloc(GFP_NOIO, npages);
2037 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2040 #ifdef CONFIG_F2FS_FAULT_INJECTION
2041 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2042 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2046 return bio_alloc(GFP_KERNEL, npages);
2049 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2050 unsigned long index, void *item)
2052 while (radix_tree_insert(root, index, item))
2056 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2058 static inline bool IS_INODE(struct page *page)
2060 struct f2fs_node *p = F2FS_NODE(page);
2062 return RAW_IS_INODE(p);
2065 static inline int offset_in_addr(struct f2fs_inode *i)
2067 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2068 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2071 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2073 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2076 static inline int f2fs_has_extra_attr(struct inode *inode);
2077 static inline block_t datablock_addr(struct inode *inode,
2078 struct page *node_page, unsigned int offset)
2080 struct f2fs_node *raw_node;
2083 bool is_inode = IS_INODE(node_page);
2085 raw_node = F2FS_NODE(node_page);
2087 /* from GC path only */
2090 base = offset_in_addr(&raw_node->i);
2091 else if (f2fs_has_extra_attr(inode))
2092 base = get_extra_isize(inode);
2095 addr_array = blkaddr_in_node(raw_node);
2096 return le32_to_cpu(addr_array[base + offset]);
2099 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2104 mask = 1 << (7 - (nr & 0x07));
2105 return mask & *addr;
2108 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2113 mask = 1 << (7 - (nr & 0x07));
2117 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2122 mask = 1 << (7 - (nr & 0x07));
2126 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2132 mask = 1 << (7 - (nr & 0x07));
2138 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2144 mask = 1 << (7 - (nr & 0x07));
2150 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2155 mask = 1 << (7 - (nr & 0x07));
2159 #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
2160 #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
2161 #define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
2163 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2167 else if (S_ISREG(mode))
2168 return flags & F2FS_REG_FLMASK;
2170 return flags & F2FS_OTHER_FLMASK;
2173 /* used for f2fs_inode_info->flags */
2175 FI_NEW_INODE, /* indicate newly allocated inode */
2176 FI_DIRTY_INODE, /* indicate inode is dirty or not */
2177 FI_AUTO_RECOVER, /* indicate inode is recoverable */
2178 FI_DIRTY_DIR, /* indicate directory has dirty pages */
2179 FI_INC_LINK, /* need to increment i_nlink */
2180 FI_ACL_MODE, /* indicate acl mode */
2181 FI_NO_ALLOC, /* should not allocate any blocks */
2182 FI_FREE_NID, /* free allocated nide */
2183 FI_NO_EXTENT, /* not to use the extent cache */
2184 FI_INLINE_XATTR, /* used for inline xattr */
2185 FI_INLINE_DATA, /* used for inline data*/
2186 FI_INLINE_DENTRY, /* used for inline dentry */
2187 FI_APPEND_WRITE, /* inode has appended data */
2188 FI_UPDATE_WRITE, /* inode has in-place-update data */
2189 FI_NEED_IPU, /* used for ipu per file */
2190 FI_ATOMIC_FILE, /* indicate atomic file */
2191 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
2192 FI_VOLATILE_FILE, /* indicate volatile file */
2193 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2194 FI_DROP_CACHE, /* drop dirty page cache */
2195 FI_DATA_EXIST, /* indicate data exists */
2196 FI_INLINE_DOTS, /* indicate inline dot dentries */
2197 FI_DO_DEFRAG, /* indicate defragment is running */
2198 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2199 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2200 FI_HOT_DATA, /* indicate file is hot */
2201 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2202 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2203 FI_PIN_FILE, /* indicate file should not be gced */
2206 static inline void __mark_inode_dirty_flag(struct inode *inode,
2210 case FI_INLINE_XATTR:
2211 case FI_INLINE_DATA:
2212 case FI_INLINE_DENTRY:
2217 case FI_INLINE_DOTS:
2219 f2fs_mark_inode_dirty_sync(inode, true);
2223 static inline void set_inode_flag(struct inode *inode, int flag)
2225 if (!test_bit(flag, &F2FS_I(inode)->flags))
2226 set_bit(flag, &F2FS_I(inode)->flags);
2227 __mark_inode_dirty_flag(inode, flag, true);
2230 static inline int is_inode_flag_set(struct inode *inode, int flag)
2232 return test_bit(flag, &F2FS_I(inode)->flags);
2235 static inline void clear_inode_flag(struct inode *inode, int flag)
2237 if (test_bit(flag, &F2FS_I(inode)->flags))
2238 clear_bit(flag, &F2FS_I(inode)->flags);
2239 __mark_inode_dirty_flag(inode, flag, false);
2242 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2244 F2FS_I(inode)->i_acl_mode = mode;
2245 set_inode_flag(inode, FI_ACL_MODE);
2246 f2fs_mark_inode_dirty_sync(inode, false);
2249 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2255 f2fs_mark_inode_dirty_sync(inode, true);
2258 static inline void f2fs_i_blocks_write(struct inode *inode,
2259 block_t diff, bool add, bool claim)
2261 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2262 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2264 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2267 dquot_claim_block(inode, diff);
2269 dquot_alloc_block_nofail(inode, diff);
2271 dquot_free_block(inode, diff);
2274 f2fs_mark_inode_dirty_sync(inode, true);
2275 if (clean || recover)
2276 set_inode_flag(inode, FI_AUTO_RECOVER);
2279 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2281 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2282 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2284 if (i_size_read(inode) == i_size)
2287 i_size_write(inode, i_size);
2288 f2fs_mark_inode_dirty_sync(inode, true);
2289 if (clean || recover)
2290 set_inode_flag(inode, FI_AUTO_RECOVER);
2293 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2295 F2FS_I(inode)->i_current_depth = depth;
2296 f2fs_mark_inode_dirty_sync(inode, true);
2299 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2302 F2FS_I(inode)->i_gc_failures = count;
2303 f2fs_mark_inode_dirty_sync(inode, true);
2306 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2308 F2FS_I(inode)->i_xattr_nid = xnid;
2309 f2fs_mark_inode_dirty_sync(inode, true);
2312 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2314 F2FS_I(inode)->i_pino = pino;
2315 f2fs_mark_inode_dirty_sync(inode, true);
2318 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2320 struct f2fs_inode_info *fi = F2FS_I(inode);
2322 if (ri->i_inline & F2FS_INLINE_XATTR)
2323 set_bit(FI_INLINE_XATTR, &fi->flags);
2324 if (ri->i_inline & F2FS_INLINE_DATA)
2325 set_bit(FI_INLINE_DATA, &fi->flags);
2326 if (ri->i_inline & F2FS_INLINE_DENTRY)
2327 set_bit(FI_INLINE_DENTRY, &fi->flags);
2328 if (ri->i_inline & F2FS_DATA_EXIST)
2329 set_bit(FI_DATA_EXIST, &fi->flags);
2330 if (ri->i_inline & F2FS_INLINE_DOTS)
2331 set_bit(FI_INLINE_DOTS, &fi->flags);
2332 if (ri->i_inline & F2FS_EXTRA_ATTR)
2333 set_bit(FI_EXTRA_ATTR, &fi->flags);
2334 if (ri->i_inline & F2FS_PIN_FILE)
2335 set_bit(FI_PIN_FILE, &fi->flags);
2338 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2342 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2343 ri->i_inline |= F2FS_INLINE_XATTR;
2344 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2345 ri->i_inline |= F2FS_INLINE_DATA;
2346 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2347 ri->i_inline |= F2FS_INLINE_DENTRY;
2348 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2349 ri->i_inline |= F2FS_DATA_EXIST;
2350 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2351 ri->i_inline |= F2FS_INLINE_DOTS;
2352 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2353 ri->i_inline |= F2FS_EXTRA_ATTR;
2354 if (is_inode_flag_set(inode, FI_PIN_FILE))
2355 ri->i_inline |= F2FS_PIN_FILE;
2358 static inline int f2fs_has_extra_attr(struct inode *inode)
2360 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2363 static inline int f2fs_has_inline_xattr(struct inode *inode)
2365 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2368 static inline unsigned int addrs_per_inode(struct inode *inode)
2370 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode);
2373 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2375 struct f2fs_inode *ri = F2FS_INODE(page);
2377 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2378 get_inline_xattr_addrs(inode)]);
2381 static inline int inline_xattr_size(struct inode *inode)
2383 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2386 static inline int f2fs_has_inline_data(struct inode *inode)
2388 return is_inode_flag_set(inode, FI_INLINE_DATA);
2391 static inline int f2fs_exist_data(struct inode *inode)
2393 return is_inode_flag_set(inode, FI_DATA_EXIST);
2396 static inline int f2fs_has_inline_dots(struct inode *inode)
2398 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2401 static inline bool f2fs_is_pinned_file(struct inode *inode)
2403 return is_inode_flag_set(inode, FI_PIN_FILE);
2406 static inline bool f2fs_is_atomic_file(struct inode *inode)
2408 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2411 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2413 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2416 static inline bool f2fs_is_volatile_file(struct inode *inode)
2418 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2421 static inline bool f2fs_is_first_block_written(struct inode *inode)
2423 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2426 static inline bool f2fs_is_drop_cache(struct inode *inode)
2428 return is_inode_flag_set(inode, FI_DROP_CACHE);
2431 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2433 struct f2fs_inode *ri = F2FS_INODE(page);
2434 int extra_size = get_extra_isize(inode);
2436 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2439 static inline int f2fs_has_inline_dentry(struct inode *inode)
2441 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2444 static inline int is_file(struct inode *inode, int type)
2446 return F2FS_I(inode)->i_advise & type;
2449 static inline void set_file(struct inode *inode, int type)
2451 F2FS_I(inode)->i_advise |= type;
2452 f2fs_mark_inode_dirty_sync(inode, true);
2455 static inline void clear_file(struct inode *inode, int type)
2457 F2FS_I(inode)->i_advise &= ~type;
2458 f2fs_mark_inode_dirty_sync(inode, true);
2461 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2466 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2468 spin_lock(&sbi->inode_lock[DIRTY_META]);
2469 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2470 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2473 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2474 file_keep_isize(inode) ||
2475 i_size_read(inode) & ~PAGE_MASK)
2478 if (!timespec_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2480 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2482 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2484 if (!timespec_equal(F2FS_I(inode)->i_disk_time + 3,
2485 &F2FS_I(inode)->i_crtime))
2488 down_read(&F2FS_I(inode)->i_sem);
2489 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2490 up_read(&F2FS_I(inode)->i_sem);
2495 static inline bool f2fs_readonly(struct super_block *sb)
2497 return sb_rdonly(sb);
2500 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2502 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2505 static inline bool is_dot_dotdot(const struct qstr *str)
2507 if (str->len == 1 && str->name[0] == '.')
2510 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2516 static inline bool f2fs_may_extent_tree(struct inode *inode)
2518 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
2519 is_inode_flag_set(inode, FI_NO_EXTENT))
2522 return S_ISREG(inode->i_mode);
2525 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2526 size_t size, gfp_t flags)
2528 #ifdef CONFIG_F2FS_FAULT_INJECTION
2529 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2530 f2fs_show_injection_info(FAULT_KMALLOC);
2534 return kmalloc(size, flags);
2537 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2538 size_t size, gfp_t flags)
2540 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2543 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2544 size_t size, gfp_t flags)
2546 #ifdef CONFIG_F2FS_FAULT_INJECTION
2547 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2548 f2fs_show_injection_info(FAULT_KVMALLOC);
2552 return kvmalloc(size, flags);
2555 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2556 size_t size, gfp_t flags)
2558 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2561 static inline int get_extra_isize(struct inode *inode)
2563 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2566 static inline int get_inline_xattr_addrs(struct inode *inode)
2568 return F2FS_I(inode)->i_inline_xattr_size;
2571 #define get_inode_mode(i) \
2572 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2573 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2575 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2576 (offsetof(struct f2fs_inode, i_extra_end) - \
2577 offsetof(struct f2fs_inode, i_extra_isize)) \
2579 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2580 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2581 ((offsetof(typeof(*f2fs_inode), field) + \
2582 sizeof((f2fs_inode)->field)) \
2583 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2585 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2589 spin_lock(&sbi->iostat_lock);
2590 for (i = 0; i < NR_IO_TYPE; i++)
2591 sbi->write_iostat[i] = 0;
2592 spin_unlock(&sbi->iostat_lock);
2595 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2596 enum iostat_type type, unsigned long long io_bytes)
2598 if (!sbi->iostat_enable)
2600 spin_lock(&sbi->iostat_lock);
2601 sbi->write_iostat[type] += io_bytes;
2603 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2604 sbi->write_iostat[APP_BUFFERED_IO] =
2605 sbi->write_iostat[APP_WRITE_IO] -
2606 sbi->write_iostat[APP_DIRECT_IO];
2607 spin_unlock(&sbi->iostat_lock);
2613 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2614 void truncate_data_blocks(struct dnode_of_data *dn);
2615 int truncate_blocks(struct inode *inode, u64 from, bool lock);
2616 int f2fs_truncate(struct inode *inode);
2617 int f2fs_getattr(const struct path *path, struct kstat *stat,
2618 u32 request_mask, unsigned int flags);
2619 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2620 int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2621 void truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2622 int f2fs_precache_extents(struct inode *inode);
2623 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2624 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2625 int f2fs_pin_file_control(struct inode *inode, bool inc);
2630 void f2fs_set_inode_flags(struct inode *inode);
2631 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2632 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2633 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2634 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2635 int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2636 void update_inode(struct inode *inode, struct page *node_page);
2637 void update_inode_page(struct inode *inode);
2638 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2639 void f2fs_evict_inode(struct inode *inode);
2640 void handle_failed_inode(struct inode *inode);
2645 int update_extension_list(struct f2fs_sb_info *sbi, const char *name,
2646 bool hot, bool set);
2647 struct dentry *f2fs_get_parent(struct dentry *child);
2652 void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2653 unsigned char get_de_type(struct f2fs_dir_entry *de);
2654 struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2655 f2fs_hash_t namehash, int *max_slots,
2656 struct f2fs_dentry_ptr *d);
2657 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2658 unsigned int start_pos, struct fscrypt_str *fstr);
2659 void do_make_empty_dir(struct inode *inode, struct inode *parent,
2660 struct f2fs_dentry_ptr *d);
2661 struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2662 const struct qstr *new_name,
2663 const struct qstr *orig_name, struct page *dpage);
2664 void update_parent_metadata(struct inode *dir, struct inode *inode,
2665 unsigned int current_depth);
2666 int room_for_filename(const void *bitmap, int slots, int max_slots);
2667 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2668 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2669 struct fscrypt_name *fname, struct page **res_page);
2670 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2671 const struct qstr *child, struct page **res_page);
2672 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2673 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2674 struct page **page);
2675 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2676 struct page *page, struct inode *inode);
2677 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2678 const struct qstr *name, f2fs_hash_t name_hash,
2679 unsigned int bit_pos);
2680 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2681 const struct qstr *orig_name,
2682 struct inode *inode, nid_t ino, umode_t mode);
2683 int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2684 struct inode *inode, nid_t ino, umode_t mode);
2685 int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2686 struct inode *inode, nid_t ino, umode_t mode);
2687 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2688 struct inode *dir, struct inode *inode);
2689 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2690 bool f2fs_empty_dir(struct inode *dir);
2692 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2694 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2695 inode, inode->i_ino, inode->i_mode);
2701 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2702 void f2fs_inode_synced(struct inode *inode);
2703 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
2704 void f2fs_quota_off_umount(struct super_block *sb);
2705 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2706 int f2fs_sync_fs(struct super_block *sb, int sync);
2707 extern __printf(3, 4)
2708 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2709 int sanity_check_ckpt(struct f2fs_sb_info *sbi);
2714 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2715 struct fscrypt_name *fname);
2720 struct dnode_of_data;
2723 bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2724 int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2725 bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2726 bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2727 void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2728 pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2729 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2730 int truncate_inode_blocks(struct inode *inode, pgoff_t from);
2731 int truncate_xattr_node(struct inode *inode);
2732 int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2733 int remove_inode_page(struct inode *inode);
2734 struct page *new_inode_page(struct inode *inode);
2735 struct page *new_node_page(struct dnode_of_data *dn, unsigned int ofs);
2736 void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2737 struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2738 struct page *get_node_page_ra(struct page *parent, int start);
2739 void move_node_page(struct page *node_page, int gc_type);
2740 int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2741 struct writeback_control *wbc, bool atomic);
2742 int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc,
2743 bool do_balance, enum iostat_type io_type);
2744 void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2745 bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2746 void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2747 void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2748 int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2749 void recover_inline_xattr(struct inode *inode, struct page *page);
2750 int recover_xattr_data(struct inode *inode, struct page *page);
2751 int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2752 void restore_node_summary(struct f2fs_sb_info *sbi,
2753 unsigned int segno, struct f2fs_summary_block *sum);
2754 void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2755 int build_node_manager(struct f2fs_sb_info *sbi);
2756 void destroy_node_manager(struct f2fs_sb_info *sbi);
2757 int __init create_node_manager_caches(void);
2758 void destroy_node_manager_caches(void);
2763 bool need_SSR(struct f2fs_sb_info *sbi);
2764 void register_inmem_page(struct inode *inode, struct page *page);
2765 void drop_inmem_pages_all(struct f2fs_sb_info *sbi);
2766 void drop_inmem_pages(struct inode *inode);
2767 void drop_inmem_page(struct inode *inode, struct page *page);
2768 int commit_inmem_pages(struct inode *inode);
2769 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2770 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2771 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
2772 int create_flush_cmd_control(struct f2fs_sb_info *sbi);
2773 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
2774 void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2775 void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2776 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2777 void init_discard_policy(struct discard_policy *dpolicy, int discard_type,
2778 unsigned int granularity);
2779 void drop_discard_cmd(struct f2fs_sb_info *sbi);
2780 void stop_discard_thread(struct f2fs_sb_info *sbi);
2781 bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
2782 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2783 void release_discard_addrs(struct f2fs_sb_info *sbi);
2784 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2785 void allocate_new_segments(struct f2fs_sb_info *sbi);
2786 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2787 bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2788 struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2789 void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
2790 void write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
2791 enum iostat_type io_type);
2792 void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2793 void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
2794 int rewrite_data_page(struct f2fs_io_info *fio);
2795 void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2796 block_t old_blkaddr, block_t new_blkaddr,
2797 bool recover_curseg, bool recover_newaddr);
2798 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2799 block_t old_addr, block_t new_addr,
2800 unsigned char version, bool recover_curseg,
2801 bool recover_newaddr);
2802 void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2803 block_t old_blkaddr, block_t *new_blkaddr,
2804 struct f2fs_summary *sum, int type,
2805 struct f2fs_io_info *fio, bool add_list);
2806 void f2fs_wait_on_page_writeback(struct page *page,
2807 enum page_type type, bool ordered);
2808 void f2fs_wait_on_block_writeback(struct f2fs_sb_info *sbi, block_t blkaddr);
2809 void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2810 void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2811 int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2812 unsigned int val, int alloc);
2813 void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2814 int build_segment_manager(struct f2fs_sb_info *sbi);
2815 void destroy_segment_manager(struct f2fs_sb_info *sbi);
2816 int __init create_segment_manager_caches(void);
2817 void destroy_segment_manager_caches(void);
2818 int rw_hint_to_seg_type(enum rw_hint hint);
2819 enum rw_hint io_type_to_rw_hint(struct f2fs_sb_info *sbi, enum page_type type,
2820 enum temp_type temp);
2825 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2826 struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2827 struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2828 struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2829 bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2830 int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2831 int type, bool sync);
2832 void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2833 long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2834 long nr_to_write, enum iostat_type io_type);
2835 void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2836 void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2837 void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2838 bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2839 void set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2840 unsigned int devidx, int type);
2841 bool is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2842 unsigned int devidx, int type);
2843 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2844 int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2845 void release_orphan_inode(struct f2fs_sb_info *sbi);
2846 void add_orphan_inode(struct inode *inode);
2847 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2848 int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2849 int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2850 void update_dirty_page(struct inode *inode, struct page *page);
2851 void remove_dirty_inode(struct inode *inode);
2852 int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2853 int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2854 void init_ino_entry_info(struct f2fs_sb_info *sbi);
2855 int __init create_checkpoint_caches(void);
2856 void destroy_checkpoint_caches(void);
2861 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
2862 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
2863 struct inode *inode, nid_t ino, pgoff_t idx,
2864 enum page_type type);
2865 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
2866 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2867 int f2fs_submit_page_write(struct f2fs_io_info *fio);
2868 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2869 block_t blk_addr, struct bio *bio);
2870 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2871 void set_data_blkaddr(struct dnode_of_data *dn);
2872 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2873 int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2874 int reserve_new_block(struct dnode_of_data *dn);
2875 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2876 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2877 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2878 struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2879 int op_flags, bool for_write);
2880 struct page *find_data_page(struct inode *inode, pgoff_t index);
2881 struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2883 struct page *get_new_data_page(struct inode *inode,
2884 struct page *ipage, pgoff_t index, bool new_i_size);
2885 int do_write_data_page(struct f2fs_io_info *fio);
2886 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2887 int create, int flag);
2888 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2889 u64 start, u64 len);
2890 bool should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
2891 bool should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
2892 void f2fs_set_page_dirty_nobuffers(struct page *page);
2893 int __f2fs_write_data_pages(struct address_space *mapping,
2894 struct writeback_control *wbc,
2895 enum iostat_type io_type);
2896 void f2fs_invalidate_page(struct page *page, unsigned int offset,
2897 unsigned int length);
2898 int f2fs_release_page(struct page *page, gfp_t wait);
2899 #ifdef CONFIG_MIGRATION
2900 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2901 struct page *page, enum migrate_mode mode);
2903 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
2908 int start_gc_thread(struct f2fs_sb_info *sbi);
2909 void stop_gc_thread(struct f2fs_sb_info *sbi);
2910 block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
2911 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
2912 unsigned int segno);
2913 void build_gc_manager(struct f2fs_sb_info *sbi);
2918 int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2919 bool space_for_roll_forward(struct f2fs_sb_info *sbi);
2924 #ifdef CONFIG_F2FS_STAT_FS
2925 struct f2fs_stat_info {
2926 struct list_head stat_list;
2927 struct f2fs_sb_info *sbi;
2928 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2929 int main_area_segs, main_area_sections, main_area_zones;
2930 unsigned long long hit_largest, hit_cached, hit_rbtree;
2931 unsigned long long hit_total, total_ext;
2932 int ext_tree, zombie_tree, ext_node;
2933 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
2934 int ndirty_data, ndirty_qdata;
2936 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
2937 int nats, dirty_nats, sits, dirty_sits;
2938 int free_nids, avail_nids, alloc_nids;
2939 int total_count, utilization;
2940 int bg_gc, nr_wb_cp_data, nr_wb_data;
2941 int nr_flushing, nr_flushed, flush_list_empty;
2942 int nr_discarding, nr_discarded;
2944 unsigned int undiscard_blks;
2945 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
2946 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
2947 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
2948 unsigned int bimodal, avg_vblocks;
2949 int util_free, util_valid, util_invalid;
2950 int rsvd_segs, overp_segs;
2951 int dirty_count, node_pages, meta_pages;
2952 int prefree_count, call_count, cp_count, bg_cp_count;
2953 int tot_segs, node_segs, data_segs, free_segs, free_secs;
2954 int bg_node_segs, bg_data_segs;
2955 int tot_blks, data_blks, node_blks;
2956 int bg_data_blks, bg_node_blks;
2957 int curseg[NR_CURSEG_TYPE];
2958 int cursec[NR_CURSEG_TYPE];
2959 int curzone[NR_CURSEG_TYPE];
2961 unsigned int segment_count[2];
2962 unsigned int block_count[2];
2963 unsigned int inplace_count;
2964 unsigned long long base_mem, cache_mem, page_mem;
2967 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2969 return (struct f2fs_stat_info *)sbi->stat_info;
2972 #define stat_inc_cp_count(si) ((si)->cp_count++)
2973 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2974 #define stat_inc_call_count(si) ((si)->call_count++)
2975 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2976 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2977 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2978 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2979 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2980 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2981 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2982 #define stat_inc_inline_xattr(inode) \
2984 if (f2fs_has_inline_xattr(inode)) \
2985 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2987 #define stat_dec_inline_xattr(inode) \
2989 if (f2fs_has_inline_xattr(inode)) \
2990 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2992 #define stat_inc_inline_inode(inode) \
2994 if (f2fs_has_inline_data(inode)) \
2995 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2997 #define stat_dec_inline_inode(inode) \
2999 if (f2fs_has_inline_data(inode)) \
3000 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3002 #define stat_inc_inline_dir(inode) \
3004 if (f2fs_has_inline_dentry(inode)) \
3005 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3007 #define stat_dec_inline_dir(inode) \
3009 if (f2fs_has_inline_dentry(inode)) \
3010 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3012 #define stat_inc_seg_type(sbi, curseg) \
3013 ((sbi)->segment_count[(curseg)->alloc_type]++)
3014 #define stat_inc_block_count(sbi, curseg) \
3015 ((sbi)->block_count[(curseg)->alloc_type]++)
3016 #define stat_inc_inplace_blocks(sbi) \
3017 (atomic_inc(&(sbi)->inplace_count))
3018 #define stat_inc_atomic_write(inode) \
3019 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3020 #define stat_dec_atomic_write(inode) \
3021 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3022 #define stat_update_max_atomic_write(inode) \
3024 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3025 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3027 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3029 #define stat_inc_volatile_write(inode) \
3030 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3031 #define stat_dec_volatile_write(inode) \
3032 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3033 #define stat_update_max_volatile_write(inode) \
3035 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3036 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3038 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3040 #define stat_inc_seg_count(sbi, type, gc_type) \
3042 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3044 if ((type) == SUM_TYPE_DATA) { \
3046 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3049 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3053 #define stat_inc_tot_blk_count(si, blks) \
3054 ((si)->tot_blks += (blks))
3056 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3058 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3059 stat_inc_tot_blk_count(si, blks); \
3060 si->data_blks += (blks); \
3061 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3064 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3066 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3067 stat_inc_tot_blk_count(si, blks); \
3068 si->node_blks += (blks); \
3069 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3072 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3073 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3074 int __init f2fs_create_root_stats(void);
3075 void f2fs_destroy_root_stats(void);
3077 #define stat_inc_cp_count(si) do { } while (0)
3078 #define stat_inc_bg_cp_count(si) do { } while (0)
3079 #define stat_inc_call_count(si) do { } while (0)
3080 #define stat_inc_bggc_count(si) do { } while (0)
3081 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3082 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3083 #define stat_inc_total_hit(sb) do { } while (0)
3084 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3085 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3086 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3087 #define stat_inc_inline_xattr(inode) do { } while (0)
3088 #define stat_dec_inline_xattr(inode) do { } while (0)
3089 #define stat_inc_inline_inode(inode) do { } while (0)
3090 #define stat_dec_inline_inode(inode) do { } while (0)
3091 #define stat_inc_inline_dir(inode) do { } while (0)
3092 #define stat_dec_inline_dir(inode) do { } while (0)
3093 #define stat_inc_atomic_write(inode) do { } while (0)
3094 #define stat_dec_atomic_write(inode) do { } while (0)
3095 #define stat_update_max_atomic_write(inode) do { } while (0)
3096 #define stat_inc_volatile_write(inode) do { } while (0)
3097 #define stat_dec_volatile_write(inode) do { } while (0)
3098 #define stat_update_max_volatile_write(inode) do { } while (0)
3099 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3100 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3101 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3102 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3103 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3104 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3105 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3107 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3108 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3109 static inline int __init f2fs_create_root_stats(void) { return 0; }
3110 static inline void f2fs_destroy_root_stats(void) { }
3113 extern const struct file_operations f2fs_dir_operations;
3114 extern const struct file_operations f2fs_file_operations;
3115 extern const struct inode_operations f2fs_file_inode_operations;
3116 extern const struct address_space_operations f2fs_dblock_aops;
3117 extern const struct address_space_operations f2fs_node_aops;
3118 extern const struct address_space_operations f2fs_meta_aops;
3119 extern const struct inode_operations f2fs_dir_inode_operations;
3120 extern const struct inode_operations f2fs_symlink_inode_operations;
3121 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3122 extern const struct inode_operations f2fs_special_inode_operations;
3123 extern struct kmem_cache *inode_entry_slab;
3128 bool f2fs_may_inline_data(struct inode *inode);
3129 bool f2fs_may_inline_dentry(struct inode *inode);
3130 void read_inline_data(struct page *page, struct page *ipage);
3131 void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from);
3132 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3133 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3134 int f2fs_convert_inline_inode(struct inode *inode);
3135 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3136 bool recover_inline_data(struct inode *inode, struct page *npage);
3137 struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
3138 struct fscrypt_name *fname, struct page **res_page);
3139 int make_empty_inline_dir(struct inode *inode, struct inode *parent,
3140 struct page *ipage);
3141 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3142 const struct qstr *orig_name,
3143 struct inode *inode, nid_t ino, umode_t mode);
3144 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
3145 struct inode *dir, struct inode *inode);
3146 bool f2fs_empty_inline_dir(struct inode *dir);
3147 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3148 struct fscrypt_str *fstr);
3149 int f2fs_inline_data_fiemap(struct inode *inode,
3150 struct fiemap_extent_info *fieinfo,
3151 __u64 start, __u64 len);
3156 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3157 struct shrink_control *sc);
3158 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3159 struct shrink_control *sc);
3160 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3161 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3166 struct rb_entry *__lookup_rb_tree(struct rb_root *root,
3167 struct rb_entry *cached_re, unsigned int ofs);
3168 struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3169 struct rb_root *root, struct rb_node **parent,
3171 struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root,
3172 struct rb_entry *cached_re, unsigned int ofs,
3173 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3174 struct rb_node ***insert_p, struct rb_node **insert_parent,
3176 bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3177 struct rb_root *root);
3178 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3179 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3180 void f2fs_drop_extent_tree(struct inode *inode);
3181 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3182 void f2fs_destroy_extent_tree(struct inode *inode);
3183 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3184 struct extent_info *ei);
3185 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3186 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3187 pgoff_t fofs, block_t blkaddr, unsigned int len);
3188 void init_extent_cache_info(struct f2fs_sb_info *sbi);
3189 int __init create_extent_cache(void);
3190 void destroy_extent_cache(void);
3195 int __init f2fs_init_sysfs(void);
3196 void f2fs_exit_sysfs(void);
3197 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3198 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3203 static inline bool f2fs_encrypted_inode(struct inode *inode)
3205 return file_is_encrypt(inode);
3208 static inline bool f2fs_encrypted_file(struct inode *inode)
3210 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
3213 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3215 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3216 file_set_encrypt(inode);
3217 inode->i_flags |= S_ENCRYPTED;
3221 static inline bool f2fs_bio_encrypted(struct bio *bio)
3223 return bio->bi_private != NULL;
3226 #define F2FS_FEATURE_FUNCS(name, flagname) \
3227 static inline int f2fs_sb_has_##name(struct super_block *sb) \
3229 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_##flagname); \
3232 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3233 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3234 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3235 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3236 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3237 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3238 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3239 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3240 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3242 #ifdef CONFIG_BLK_DEV_ZONED
3243 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
3244 struct block_device *bdev, block_t blkaddr)
3246 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3249 for (i = 0; i < sbi->s_ndevs; i++)
3250 if (FDEV(i).bdev == bdev)
3251 return FDEV(i).blkz_type[zno];
3256 static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
3258 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
3260 return blk_queue_discard(q) || f2fs_sb_has_blkzoned(sbi->sb);
3263 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3265 clear_opt(sbi, ADAPTIVE);
3266 clear_opt(sbi, LFS);
3269 case F2FS_MOUNT_ADAPTIVE:
3270 set_opt(sbi, ADAPTIVE);
3272 case F2FS_MOUNT_LFS:
3278 static inline bool f2fs_may_encrypt(struct inode *inode)
3280 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3281 umode_t mode = inode->i_mode;
3283 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3289 static inline bool f2fs_force_buffered_io(struct inode *inode, int rw)
3291 return (f2fs_encrypted_file(inode) ||
3292 (rw == WRITE && test_opt(F2FS_I_SB(inode), LFS)) ||
3293 F2FS_I_SB(inode)->s_ndevs);