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 MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
180 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
181 #define DEF_MAX_DISCARD_LEN 512 /* Max. 2MB per discard */
182 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
183 #define DEF_MID_DISCARD_ISSUE_TIME 500 /* 500 ms, if device busy */
184 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
185 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
186 #define DEF_CP_INTERVAL 60 /* 60 secs */
187 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
197 * indicate meta/data type
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 mid_interval; /* used for device busy */
289 unsigned int max_interval; /* used for candidates not exist */
290 unsigned int max_requests; /* # of discards issued per round */
291 unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */
292 bool io_aware; /* issue discard in idle time */
293 bool sync; /* submit discard with REQ_SYNC flag */
294 unsigned int granularity; /* discard granularity */
297 struct discard_cmd_control {
298 struct task_struct *f2fs_issue_discard; /* discard thread */
299 struct list_head entry_list; /* 4KB discard entry list */
300 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
301 struct list_head wait_list; /* store on-flushing entries */
302 struct list_head fstrim_list; /* in-flight discard from fstrim */
303 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
304 unsigned int discard_wake; /* to wake up discard thread */
305 struct mutex cmd_lock;
306 unsigned int nr_discards; /* # of discards in the list */
307 unsigned int max_discards; /* max. discards to be issued */
308 unsigned int discard_granularity; /* discard granularity */
309 unsigned int undiscard_blks; /* # of undiscard blocks */
310 atomic_t issued_discard; /* # of issued discard */
311 atomic_t issing_discard; /* # of issing discard */
312 atomic_t discard_cmd_cnt; /* # of cached cmd count */
313 struct rb_root root; /* root of discard rb-tree */
316 /* for the list of fsync inodes, used only during recovery */
317 struct fsync_inode_entry {
318 struct list_head list; /* list head */
319 struct inode *inode; /* vfs inode pointer */
320 block_t blkaddr; /* block address locating the last fsync */
321 block_t last_dentry; /* block address locating the last dentry */
324 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
325 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
327 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
328 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
329 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
330 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
332 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
333 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
335 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
337 int before = nats_in_cursum(journal);
339 journal->n_nats = cpu_to_le16(before + i);
343 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
345 int before = sits_in_cursum(journal);
347 journal->n_sits = cpu_to_le16(before + i);
351 static inline bool __has_cursum_space(struct f2fs_journal *journal,
354 if (type == NAT_JOURNAL)
355 return size <= MAX_NAT_JENTRIES(journal);
356 return size <= MAX_SIT_JENTRIES(journal);
362 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
363 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
364 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
366 #define F2FS_IOCTL_MAGIC 0xf5
367 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
368 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
369 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
370 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
371 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
372 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
373 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
374 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
375 struct f2fs_defragment)
376 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
377 struct f2fs_move_range)
378 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
379 struct f2fs_flush_device)
380 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
381 struct f2fs_gc_range)
382 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
383 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
384 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
385 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
387 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
388 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
389 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
392 * should be same as XFS_IOC_GOINGDOWN.
393 * Flags for going down operation used by FS_IOC_GOINGDOWN
395 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
396 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
397 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
398 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
399 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
401 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
403 * ioctl commands in 32 bit emulation
405 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
406 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
407 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
410 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
411 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
413 struct f2fs_gc_range {
419 struct f2fs_defragment {
424 struct f2fs_move_range {
425 u32 dst_fd; /* destination fd */
426 u64 pos_in; /* start position in src_fd */
427 u64 pos_out; /* start position in dst_fd */
428 u64 len; /* size to move */
431 struct f2fs_flush_device {
432 u32 dev_num; /* device number to flush */
433 u32 segments; /* # of segments to flush */
436 /* for inline stuff */
437 #define DEF_INLINE_RESERVED_SIZE 1
438 #define DEF_MIN_INLINE_SIZE 1
439 static inline int get_extra_isize(struct inode *inode);
440 static inline int get_inline_xattr_addrs(struct inode *inode);
441 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
442 (CUR_ADDRS_PER_INODE(inode) - \
443 get_inline_xattr_addrs(inode) - \
444 DEF_INLINE_RESERVED_SIZE))
447 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
448 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
450 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
451 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
452 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
453 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
454 NR_INLINE_DENTRY(inode) + \
455 INLINE_DENTRY_BITMAP_SIZE(inode)))
458 * For INODE and NODE manager
460 /* for directory operations */
461 struct f2fs_dentry_ptr {
464 struct f2fs_dir_entry *dentry;
465 __u8 (*filename)[F2FS_SLOT_LEN];
470 static inline void make_dentry_ptr_block(struct inode *inode,
471 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
474 d->max = NR_DENTRY_IN_BLOCK;
475 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
476 d->bitmap = t->dentry_bitmap;
477 d->dentry = t->dentry;
478 d->filename = t->filename;
481 static inline void make_dentry_ptr_inline(struct inode *inode,
482 struct f2fs_dentry_ptr *d, void *t)
484 int entry_cnt = NR_INLINE_DENTRY(inode);
485 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
486 int reserved_size = INLINE_RESERVED_SIZE(inode);
490 d->nr_bitmap = bitmap_size;
492 d->dentry = t + bitmap_size + reserved_size;
493 d->filename = t + bitmap_size + reserved_size +
494 SIZE_OF_DIR_ENTRY * entry_cnt;
498 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
499 * as its node offset to distinguish from index node blocks.
500 * But some bits are used to mark the node block.
502 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
505 ALLOC_NODE, /* allocate a new node page if needed */
506 LOOKUP_NODE, /* look up a node without readahead */
508 * look up a node with readahead called
513 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
515 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
517 /* vector size for gang look-up from extent cache that consists of radix tree */
518 #define EXT_TREE_VEC_SIZE 64
520 /* for in-memory extent cache entry */
521 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
523 /* number of extent info in extent cache we try to shrink */
524 #define EXTENT_CACHE_SHRINK_NUMBER 128
527 struct rb_node rb_node; /* rb node located in rb-tree */
528 unsigned int ofs; /* start offset of the entry */
529 unsigned int len; /* length of the entry */
533 unsigned int fofs; /* start offset in a file */
534 unsigned int len; /* length of the extent */
535 u32 blk; /* start block address of the extent */
539 struct rb_node rb_node;
546 struct extent_info ei; /* extent info */
549 struct list_head list; /* node in global extent list of sbi */
550 struct extent_tree *et; /* extent tree pointer */
554 nid_t ino; /* inode number */
555 struct rb_root root; /* root of extent info rb-tree */
556 struct extent_node *cached_en; /* recently accessed extent node */
557 struct extent_info largest; /* largested extent info */
558 struct list_head list; /* to be used by sbi->zombie_list */
559 rwlock_t lock; /* protect extent info rb-tree */
560 atomic_t node_cnt; /* # of extent node in rb-tree*/
564 * This structure is taken from ext4_map_blocks.
566 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
568 #define F2FS_MAP_NEW (1 << BH_New)
569 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
570 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
571 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
574 struct f2fs_map_blocks {
578 unsigned int m_flags;
579 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
580 pgoff_t *m_next_extent; /* point to next possible extent */
584 /* for flag in get_data_block */
586 F2FS_GET_BLOCK_DEFAULT,
587 F2FS_GET_BLOCK_FIEMAP,
589 F2FS_GET_BLOCK_PRE_DIO,
590 F2FS_GET_BLOCK_PRE_AIO,
591 F2FS_GET_BLOCK_PRECACHE,
595 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
597 #define FADVISE_COLD_BIT 0x01
598 #define FADVISE_LOST_PINO_BIT 0x02
599 #define FADVISE_ENCRYPT_BIT 0x04
600 #define FADVISE_ENC_NAME_BIT 0x08
601 #define FADVISE_KEEP_SIZE_BIT 0x10
602 #define FADVISE_HOT_BIT 0x20
603 #define FADVISE_VERITY_BIT 0x40 /* reserved */
605 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
606 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
607 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
608 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
609 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
610 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
611 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
612 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
613 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
614 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
615 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
616 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
617 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
618 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
619 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
620 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
622 #define DEF_DIR_LEVEL 0
630 struct f2fs_inode_info {
631 struct inode vfs_inode; /* serve a vfs inode */
632 unsigned long i_flags; /* keep an inode flags for ioctl */
633 unsigned char i_advise; /* use to give file attribute hints */
634 unsigned char i_dir_level; /* use for dentry level for large dir */
635 unsigned int i_current_depth; /* only for directory depth */
636 /* for gc failure statistic */
637 unsigned int i_gc_failures[MAX_GC_FAILURE];
638 unsigned int i_pino; /* parent inode number */
639 umode_t i_acl_mode; /* keep file acl mode temporarily */
641 /* Use below internally in f2fs*/
642 unsigned long flags; /* use to pass per-file flags */
643 struct rw_semaphore i_sem; /* protect fi info */
644 atomic_t dirty_pages; /* # of dirty pages */
645 f2fs_hash_t chash; /* hash value of given file name */
646 unsigned int clevel; /* maximum level of given file name */
647 struct task_struct *task; /* lookup and create consistency */
648 struct task_struct *cp_task; /* separate cp/wb IO stats*/
649 nid_t i_xattr_nid; /* node id that contains xattrs */
650 loff_t last_disk_size; /* lastly written file size */
653 struct dquot *i_dquot[MAXQUOTAS];
655 /* quota space reservation, managed internally by quota code */
656 qsize_t i_reserved_quota;
658 struct list_head dirty_list; /* dirty list for dirs and files */
659 struct list_head gdirty_list; /* linked in global dirty list */
660 struct list_head inmem_ilist; /* list for inmem inodes */
661 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
662 struct task_struct *inmem_task; /* store inmemory task */
663 struct mutex inmem_lock; /* lock for inmemory pages */
664 struct extent_tree *extent_tree; /* cached extent_tree entry */
666 /* avoid racing between foreground op and gc */
667 struct rw_semaphore i_gc_rwsem[2];
668 struct rw_semaphore i_mmap_sem;
669 struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
671 int i_extra_isize; /* size of extra space located in i_addr */
672 kprojid_t i_projid; /* id for project quota */
673 int i_inline_xattr_size; /* inline xattr size */
674 struct timespec64 i_crtime; /* inode creation time */
675 struct timespec64 i_disk_time[4];/* inode disk times */
678 static inline void get_extent_info(struct extent_info *ext,
679 struct f2fs_extent *i_ext)
681 ext->fofs = le32_to_cpu(i_ext->fofs);
682 ext->blk = le32_to_cpu(i_ext->blk);
683 ext->len = le32_to_cpu(i_ext->len);
686 static inline void set_raw_extent(struct extent_info *ext,
687 struct f2fs_extent *i_ext)
689 i_ext->fofs = cpu_to_le32(ext->fofs);
690 i_ext->blk = cpu_to_le32(ext->blk);
691 i_ext->len = cpu_to_le32(ext->len);
694 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
695 u32 blk, unsigned int len)
702 static inline bool __is_discard_mergeable(struct discard_info *back,
703 struct discard_info *front)
705 return (back->lstart + back->len == front->lstart) &&
706 (back->len + front->len < DEF_MAX_DISCARD_LEN);
709 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
710 struct discard_info *back)
712 return __is_discard_mergeable(back, cur);
715 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
716 struct discard_info *front)
718 return __is_discard_mergeable(cur, front);
721 static inline bool __is_extent_mergeable(struct extent_info *back,
722 struct extent_info *front)
724 return (back->fofs + back->len == front->fofs &&
725 back->blk + back->len == front->blk);
728 static inline bool __is_back_mergeable(struct extent_info *cur,
729 struct extent_info *back)
731 return __is_extent_mergeable(back, cur);
734 static inline bool __is_front_mergeable(struct extent_info *cur,
735 struct extent_info *front)
737 return __is_extent_mergeable(cur, front);
740 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
741 static inline void __try_update_largest_extent(struct inode *inode,
742 struct extent_tree *et, struct extent_node *en)
744 if (en->ei.len > et->largest.len) {
745 et->largest = en->ei;
746 f2fs_mark_inode_dirty_sync(inode, true);
751 * For free nid management
754 FREE_NID, /* newly added to free nid list */
755 PREALLOC_NID, /* it is preallocated */
759 struct f2fs_nm_info {
760 block_t nat_blkaddr; /* base disk address of NAT */
761 nid_t max_nid; /* maximum possible node ids */
762 nid_t available_nids; /* # of available node ids */
763 nid_t next_scan_nid; /* the next nid to be scanned */
764 unsigned int ram_thresh; /* control the memory footprint */
765 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
766 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
768 /* NAT cache management */
769 struct radix_tree_root nat_root;/* root of the nat entry cache */
770 struct radix_tree_root nat_set_root;/* root of the nat set cache */
771 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
772 struct list_head nat_entries; /* cached nat entry list (clean) */
773 unsigned int nat_cnt; /* the # of cached nat entries */
774 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
775 unsigned int nat_blocks; /* # of nat blocks */
777 /* free node ids management */
778 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
779 struct list_head free_nid_list; /* list for free nids excluding preallocated nids */
780 unsigned int nid_cnt[MAX_NID_STATE]; /* the number of free node id */
781 spinlock_t nid_list_lock; /* protect nid lists ops */
782 struct mutex build_lock; /* lock for build free nids */
783 unsigned char **free_nid_bitmap;
784 unsigned char *nat_block_bitmap;
785 unsigned short *free_nid_count; /* free nid count of NAT block */
788 char *nat_bitmap; /* NAT bitmap pointer */
790 unsigned int nat_bits_blocks; /* # of nat bits blocks */
791 unsigned char *nat_bits; /* NAT bits blocks */
792 unsigned char *full_nat_bits; /* full NAT pages */
793 unsigned char *empty_nat_bits; /* empty NAT pages */
794 #ifdef CONFIG_F2FS_CHECK_FS
795 char *nat_bitmap_mir; /* NAT bitmap mirror */
797 int bitmap_size; /* bitmap size */
801 * this structure is used as one of function parameters.
802 * all the information are dedicated to a given direct node block determined
803 * by the data offset in a file.
805 struct dnode_of_data {
806 struct inode *inode; /* vfs inode pointer */
807 struct page *inode_page; /* its inode page, NULL is possible */
808 struct page *node_page; /* cached direct node page */
809 nid_t nid; /* node id of the direct node block */
810 unsigned int ofs_in_node; /* data offset in the node page */
811 bool inode_page_locked; /* inode page is locked or not */
812 bool node_changed; /* is node block changed */
813 char cur_level; /* level of hole node page */
814 char max_level; /* level of current page located */
815 block_t data_blkaddr; /* block address of the node block */
818 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
819 struct page *ipage, struct page *npage, nid_t nid)
821 memset(dn, 0, sizeof(*dn));
823 dn->inode_page = ipage;
824 dn->node_page = npage;
831 * By default, there are 6 active log areas across the whole main area.
832 * When considering hot and cold data separation to reduce cleaning overhead,
833 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
835 * In the current design, you should not change the numbers intentionally.
836 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
837 * logs individually according to the underlying devices. (default: 6)
838 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
839 * data and 8 for node logs.
841 #define NR_CURSEG_DATA_TYPE (3)
842 #define NR_CURSEG_NODE_TYPE (3)
843 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
846 CURSEG_HOT_DATA = 0, /* directory entry blocks */
847 CURSEG_WARM_DATA, /* data blocks */
848 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
849 CURSEG_HOT_NODE, /* direct node blocks of directory files */
850 CURSEG_WARM_NODE, /* direct node blocks of normal files */
851 CURSEG_COLD_NODE, /* indirect node blocks */
856 struct completion wait;
857 struct llist_node llnode;
862 struct flush_cmd_control {
863 struct task_struct *f2fs_issue_flush; /* flush thread */
864 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
865 atomic_t issued_flush; /* # of issued flushes */
866 atomic_t issing_flush; /* # of issing flushes */
867 struct llist_head issue_list; /* list for command issue */
868 struct llist_node *dispatch_list; /* list for command dispatch */
871 struct f2fs_sm_info {
872 struct sit_info *sit_info; /* whole segment information */
873 struct free_segmap_info *free_info; /* free segment information */
874 struct dirty_seglist_info *dirty_info; /* dirty segment information */
875 struct curseg_info *curseg_array; /* active segment information */
877 struct rw_semaphore curseg_lock; /* for preventing curseg change */
879 block_t seg0_blkaddr; /* block address of 0'th segment */
880 block_t main_blkaddr; /* start block address of main area */
881 block_t ssa_blkaddr; /* start block address of SSA area */
883 unsigned int segment_count; /* total # of segments */
884 unsigned int main_segments; /* # of segments in main area */
885 unsigned int reserved_segments; /* # of reserved segments */
886 unsigned int ovp_segments; /* # of overprovision segments */
888 /* a threshold to reclaim prefree segments */
889 unsigned int rec_prefree_segments;
891 /* for batched trimming */
892 unsigned int trim_sections; /* # of sections to trim */
894 struct list_head sit_entry_set; /* sit entry set list */
896 unsigned int ipu_policy; /* in-place-update policy */
897 unsigned int min_ipu_util; /* in-place-update threshold */
898 unsigned int min_fsync_blocks; /* threshold for fsync */
899 unsigned int min_hot_blocks; /* threshold for hot block allocation */
900 unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */
902 /* for flush command control */
903 struct flush_cmd_control *fcc_info;
905 /* for discard command control */
906 struct discard_cmd_control *dcc_info;
913 * COUNT_TYPE for monitoring
915 * f2fs monitors the number of several block types such as on-writeback,
916 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
918 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
933 * The below are the page types of bios used in submit_bio().
934 * The available types are:
935 * DATA User data pages. It operates as async mode.
936 * NODE Node pages. It operates as async mode.
937 * META FS metadata pages such as SIT, NAT, CP.
938 * NR_PAGE_TYPE The number of page types.
939 * META_FLUSH Make sure the previous pages are written
940 * with waiting the bio's completion
941 * ... Only can be used with META.
943 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
950 INMEM, /* the below types are used by tracepoints only. */
959 HOT = 0, /* must be zero for meta bio */
965 enum need_lock_type {
971 enum cp_reason_type {
985 APP_DIRECT_IO, /* app direct IOs */
986 APP_BUFFERED_IO, /* app buffered IOs */
987 APP_WRITE_IO, /* app write IOs */
988 APP_MAPPED_IO, /* app mapped IOs */
989 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
990 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
991 FS_META_IO, /* meta IOs from kworker/reclaimer */
992 FS_GC_DATA_IO, /* data IOs from forground gc */
993 FS_GC_NODE_IO, /* node IOs from forground gc */
994 FS_CP_DATA_IO, /* data IOs from checkpoint */
995 FS_CP_NODE_IO, /* node IOs from checkpoint */
996 FS_CP_META_IO, /* meta IOs from checkpoint */
997 FS_DISCARD, /* discard */
1001 struct f2fs_io_info {
1002 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
1003 nid_t ino; /* inode number */
1004 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
1005 enum temp_type temp; /* contains HOT/WARM/COLD */
1006 int op; /* contains REQ_OP_ */
1007 int op_flags; /* req_flag_bits */
1008 block_t new_blkaddr; /* new block address to be written */
1009 block_t old_blkaddr; /* old block address before Cow */
1010 struct page *page; /* page to be written */
1011 struct page *encrypted_page; /* encrypted page */
1012 struct list_head list; /* serialize IOs */
1013 bool submitted; /* indicate IO submission */
1014 int need_lock; /* indicate we need to lock cp_rwsem */
1015 bool in_list; /* indicate fio is in io_list */
1016 bool is_meta; /* indicate borrow meta inode mapping or not */
1017 bool retry; /* need to reallocate block address */
1018 enum iostat_type io_type; /* io type */
1019 struct writeback_control *io_wbc; /* writeback control */
1022 #define is_read_io(rw) ((rw) == READ)
1023 struct f2fs_bio_info {
1024 struct f2fs_sb_info *sbi; /* f2fs superblock */
1025 struct bio *bio; /* bios to merge */
1026 sector_t last_block_in_bio; /* last block number */
1027 struct f2fs_io_info fio; /* store buffered io info. */
1028 struct rw_semaphore io_rwsem; /* blocking op for bio */
1029 spinlock_t io_lock; /* serialize DATA/NODE IOs */
1030 struct list_head io_list; /* track fios */
1033 #define FDEV(i) (sbi->devs[i])
1034 #define RDEV(i) (raw_super->devs[i])
1035 struct f2fs_dev_info {
1036 struct block_device *bdev;
1037 char path[MAX_PATH_LEN];
1038 unsigned int total_segments;
1041 #ifdef CONFIG_BLK_DEV_ZONED
1042 unsigned int nr_blkz; /* Total number of zones */
1043 u8 *blkz_type; /* Array of zones type */
1048 DIR_INODE, /* for dirty dir inode */
1049 FILE_INODE, /* for dirty regular/symlink inode */
1050 DIRTY_META, /* for all dirtied inode metadata */
1051 ATOMIC_FILE, /* for all atomic files */
1055 /* for inner inode cache management */
1056 struct inode_management {
1057 struct radix_tree_root ino_root; /* ino entry array */
1058 spinlock_t ino_lock; /* for ino entry lock */
1059 struct list_head ino_list; /* inode list head */
1060 unsigned long ino_num; /* number of entries */
1063 /* For s_flag in struct f2fs_sb_info */
1065 SBI_IS_DIRTY, /* dirty flag for checkpoint */
1066 SBI_IS_CLOSE, /* specify unmounting */
1067 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
1068 SBI_POR_DOING, /* recovery is doing or not */
1069 SBI_NEED_SB_WRITE, /* need to recover superblock */
1070 SBI_NEED_CP, /* need to checkpoint */
1071 SBI_IS_SHUTDOWN, /* shutdown by ioctl */
1088 WHINT_MODE_OFF, /* not pass down write hints */
1089 WHINT_MODE_USER, /* try to pass down hints given by users */
1090 WHINT_MODE_FS, /* pass down hints with F2FS policy */
1094 ALLOC_MODE_DEFAULT, /* stay default */
1095 ALLOC_MODE_REUSE, /* reuse segments as much as possible */
1099 FSYNC_MODE_POSIX, /* fsync follows posix semantics */
1100 FSYNC_MODE_STRICT, /* fsync behaves in line with ext4 */
1101 FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
1104 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1105 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1106 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1108 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1111 struct f2fs_sb_info {
1112 struct super_block *sb; /* pointer to VFS super block */
1113 struct proc_dir_entry *s_proc; /* proc entry */
1114 struct f2fs_super_block *raw_super; /* raw super block pointer */
1115 struct rw_semaphore sb_lock; /* lock for raw super block */
1116 int valid_super_block; /* valid super block no */
1117 unsigned long s_flag; /* flags for sbi */
1119 #ifdef CONFIG_BLK_DEV_ZONED
1120 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
1121 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
1124 /* for node-related operations */
1125 struct f2fs_nm_info *nm_info; /* node manager */
1126 struct inode *node_inode; /* cache node blocks */
1128 /* for segment-related operations */
1129 struct f2fs_sm_info *sm_info; /* segment manager */
1131 /* for bio operations */
1132 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
1133 struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
1134 /* bio ordering for NODE/DATA */
1135 /* keep migration IO order for LFS mode */
1136 struct rw_semaphore io_order_lock;
1137 mempool_t *write_io_dummy; /* Dummy pages */
1139 /* for checkpoint */
1140 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
1141 int cur_cp_pack; /* remain current cp pack */
1142 spinlock_t cp_lock; /* for flag in ckpt */
1143 struct inode *meta_inode; /* cache meta blocks */
1144 struct mutex cp_mutex; /* checkpoint procedure lock */
1145 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1146 struct rw_semaphore node_write; /* locking node writes */
1147 struct rw_semaphore node_change; /* locking node change */
1148 wait_queue_head_t cp_wait;
1149 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1150 long interval_time[MAX_TIME]; /* to store thresholds */
1152 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1154 /* for orphan inode, use 0'th array */
1155 unsigned int max_orphans; /* max orphan inodes */
1157 /* for inode management */
1158 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1159 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1161 /* for extent tree cache */
1162 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1163 struct mutex extent_tree_lock; /* locking extent radix tree */
1164 struct list_head extent_list; /* lru list for shrinker */
1165 spinlock_t extent_lock; /* locking extent lru list */
1166 atomic_t total_ext_tree; /* extent tree count */
1167 struct list_head zombie_list; /* extent zombie tree list */
1168 atomic_t total_zombie_tree; /* extent zombie tree count */
1169 atomic_t total_ext_node; /* extent info count */
1171 /* basic filesystem units */
1172 unsigned int log_sectors_per_block; /* log2 sectors per block */
1173 unsigned int log_blocksize; /* log2 block size */
1174 unsigned int blocksize; /* block size */
1175 unsigned int root_ino_num; /* root inode number*/
1176 unsigned int node_ino_num; /* node inode number*/
1177 unsigned int meta_ino_num; /* meta inode number*/
1178 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1179 unsigned int blocks_per_seg; /* blocks per segment */
1180 unsigned int segs_per_sec; /* segments per section */
1181 unsigned int secs_per_zone; /* sections per zone */
1182 unsigned int total_sections; /* total section count */
1183 unsigned int total_node_count; /* total node block count */
1184 unsigned int total_valid_node_count; /* valid node block count */
1185 loff_t max_file_blocks; /* max block index of file */
1186 int dir_level; /* directory level */
1187 unsigned int trigger_ssr_threshold; /* threshold to trigger ssr */
1188 int readdir_ra; /* readahead inode in readdir */
1190 block_t user_block_count; /* # of user blocks */
1191 block_t total_valid_block_count; /* # of valid blocks */
1192 block_t discard_blks; /* discard command candidats */
1193 block_t last_valid_block_count; /* for recovery */
1194 block_t reserved_blocks; /* configurable reserved blocks */
1195 block_t current_reserved_blocks; /* current reserved blocks */
1197 unsigned int nquota_files; /* # of quota sysfile */
1199 u32 s_next_generation; /* for NFS support */
1201 /* # of pages, see count_type */
1202 atomic_t nr_pages[NR_COUNT_TYPE];
1203 /* # of allocated blocks */
1204 struct percpu_counter alloc_valid_block_count;
1206 /* writeback control */
1207 atomic_t wb_sync_req[META]; /* count # of WB_SYNC threads */
1209 /* valid inode count */
1210 struct percpu_counter total_valid_inode_count;
1212 struct f2fs_mount_info mount_opt; /* mount options */
1214 /* for cleaning operations */
1215 struct mutex gc_mutex; /* mutex for GC */
1216 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1217 unsigned int cur_victim_sec; /* current victim section num */
1218 unsigned int gc_mode; /* current GC state */
1219 /* for skip statistic */
1220 unsigned long long skipped_atomic_files[2]; /* FG_GC and BG_GC */
1222 /* threshold for gc trials on pinned files */
1223 u64 gc_pin_file_threshold;
1225 /* maximum # of trials to find a victim segment for SSR and GC */
1226 unsigned int max_victim_search;
1229 * for stat information.
1230 * one is for the LFS mode, and the other is for the SSR mode.
1232 #ifdef CONFIG_F2FS_STAT_FS
1233 struct f2fs_stat_info *stat_info; /* FS status information */
1234 unsigned int segment_count[2]; /* # of allocated segments */
1235 unsigned int block_count[2]; /* # of allocated blocks */
1236 atomic_t inplace_count; /* # of inplace update */
1237 atomic64_t total_hit_ext; /* # of lookup extent cache */
1238 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1239 atomic64_t read_hit_largest; /* # of hit largest extent node */
1240 atomic64_t read_hit_cached; /* # of hit cached extent node */
1241 atomic_t inline_xattr; /* # of inline_xattr inodes */
1242 atomic_t inline_inode; /* # of inline_data inodes */
1243 atomic_t inline_dir; /* # of inline_dentry inodes */
1244 atomic_t aw_cnt; /* # of atomic writes */
1245 atomic_t vw_cnt; /* # of volatile writes */
1246 atomic_t max_aw_cnt; /* max # of atomic writes */
1247 atomic_t max_vw_cnt; /* max # of volatile writes */
1248 int bg_gc; /* background gc calls */
1249 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1251 spinlock_t stat_lock; /* lock for stat operations */
1253 /* For app/fs IO statistics */
1254 spinlock_t iostat_lock;
1255 unsigned long long write_iostat[NR_IO_TYPE];
1258 /* For sysfs suppport */
1259 struct kobject s_kobj;
1260 struct completion s_kobj_unregister;
1262 /* For shrinker support */
1263 struct list_head s_list;
1264 int s_ndevs; /* number of devices */
1265 struct f2fs_dev_info *devs; /* for device list */
1266 unsigned int dirty_device; /* for checkpoint data flush */
1267 spinlock_t dev_lock; /* protect dirty_device */
1268 struct mutex umount_mutex;
1269 unsigned int shrinker_run_no;
1271 /* For write statistics */
1272 u64 sectors_written_start;
1275 /* Reference to checksum algorithm driver via cryptoapi */
1276 struct crypto_shash *s_chksum_driver;
1278 /* Precomputed FS UUID checksum for seeding other checksums */
1279 __u32 s_chksum_seed;
1282 #ifdef CONFIG_F2FS_FAULT_INJECTION
1283 #define f2fs_show_injection_info(type) \
1284 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1285 KERN_INFO, fault_name[type], \
1286 __func__, __builtin_return_address(0))
1287 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1289 struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
1291 if (!ffi->inject_rate)
1294 if (!IS_FAULT_SET(ffi, type))
1297 atomic_inc(&ffi->inject_ops);
1298 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1299 atomic_set(&ffi->inject_ops, 0);
1306 /* For write statistics. Suppose sector size is 512 bytes,
1307 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1309 #define BD_PART_WRITTEN(s) \
1310 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1311 (s)->sectors_written_start) >> 1)
1313 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1315 sbi->last_time[type] = jiffies;
1318 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1320 unsigned long interval = sbi->interval_time[type] * HZ;
1322 return time_after(jiffies, sbi->last_time[type] + interval);
1325 static inline bool is_idle(struct f2fs_sb_info *sbi)
1327 struct block_device *bdev = sbi->sb->s_bdev;
1328 struct request_queue *q = bdev_get_queue(bdev);
1329 struct request_list *rl = &q->root_rl;
1331 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1334 return f2fs_time_over(sbi, REQ_TIME);
1340 static inline u32 __f2fs_crc32(struct f2fs_sb_info *sbi, u32 crc,
1341 const void *address, unsigned int length)
1344 struct shash_desc shash;
1349 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1351 desc.shash.tfm = sbi->s_chksum_driver;
1352 desc.shash.flags = 0;
1353 *(u32 *)desc.ctx = crc;
1355 err = crypto_shash_update(&desc.shash, address, length);
1358 return *(u32 *)desc.ctx;
1361 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1362 unsigned int length)
1364 return __f2fs_crc32(sbi, F2FS_SUPER_MAGIC, address, length);
1367 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1368 void *buf, size_t buf_size)
1370 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1373 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1374 const void *address, unsigned int length)
1376 return __f2fs_crc32(sbi, crc, address, length);
1379 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1381 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1384 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1386 return sb->s_fs_info;
1389 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1391 return F2FS_SB(inode->i_sb);
1394 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1396 return F2FS_I_SB(mapping->host);
1399 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1401 return F2FS_M_SB(page->mapping);
1404 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1406 return (struct f2fs_super_block *)(sbi->raw_super);
1409 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1411 return (struct f2fs_checkpoint *)(sbi->ckpt);
1414 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1416 return (struct f2fs_node *)page_address(page);
1419 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1421 return &((struct f2fs_node *)page_address(page))->i;
1424 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1426 return (struct f2fs_nm_info *)(sbi->nm_info);
1429 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1431 return (struct f2fs_sm_info *)(sbi->sm_info);
1434 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1436 return (struct sit_info *)(SM_I(sbi)->sit_info);
1439 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1441 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1444 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1446 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1449 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1451 return sbi->meta_inode->i_mapping;
1454 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1456 return sbi->node_inode->i_mapping;
1459 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1461 return test_bit(type, &sbi->s_flag);
1464 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1466 set_bit(type, &sbi->s_flag);
1469 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1471 clear_bit(type, &sbi->s_flag);
1474 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1476 return le64_to_cpu(cp->checkpoint_ver);
1479 static inline unsigned long f2fs_qf_ino(struct super_block *sb, int type)
1481 if (type < F2FS_MAX_QUOTAS)
1482 return le32_to_cpu(F2FS_SB(sb)->raw_super->qf_ino[type]);
1486 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1488 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1489 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1492 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1494 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1496 return ckpt_flags & f;
1499 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1501 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1504 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1506 unsigned int ckpt_flags;
1508 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1510 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1513 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1515 unsigned long flags;
1517 spin_lock_irqsave(&sbi->cp_lock, flags);
1518 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1519 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1522 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1524 unsigned int ckpt_flags;
1526 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1528 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1531 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1533 unsigned long flags;
1535 spin_lock_irqsave(&sbi->cp_lock, flags);
1536 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1537 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1540 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1542 unsigned long flags;
1544 set_sbi_flag(sbi, SBI_NEED_FSCK);
1547 spin_lock_irqsave(&sbi->cp_lock, flags);
1548 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1549 kfree(NM_I(sbi)->nat_bits);
1550 NM_I(sbi)->nat_bits = NULL;
1552 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1555 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1556 struct cp_control *cpc)
1558 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1560 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1563 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1565 down_read(&sbi->cp_rwsem);
1568 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1570 return down_read_trylock(&sbi->cp_rwsem);
1573 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1575 up_read(&sbi->cp_rwsem);
1578 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1580 down_write(&sbi->cp_rwsem);
1583 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1585 up_write(&sbi->cp_rwsem);
1588 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1590 int reason = CP_SYNC;
1592 if (test_opt(sbi, FASTBOOT))
1593 reason = CP_FASTBOOT;
1594 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1599 static inline bool __remain_node_summaries(int reason)
1601 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1604 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1606 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1607 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1611 * Check whether the inode has blocks or not
1613 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1615 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1617 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1620 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1622 return ofs == XATTR_NODE_OFFSET;
1625 static inline bool __allow_reserved_blocks(struct f2fs_sb_info *sbi,
1626 struct inode *inode, bool cap)
1630 if (!test_opt(sbi, RESERVE_ROOT))
1632 if (IS_NOQUOTA(inode))
1634 if (uid_eq(F2FS_OPTION(sbi).s_resuid, current_fsuid()))
1636 if (!gid_eq(F2FS_OPTION(sbi).s_resgid, GLOBAL_ROOT_GID) &&
1637 in_group_p(F2FS_OPTION(sbi).s_resgid))
1639 if (cap && capable(CAP_SYS_RESOURCE))
1644 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1645 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1646 struct inode *inode, blkcnt_t *count)
1648 blkcnt_t diff = 0, release = 0;
1649 block_t avail_user_block_count;
1652 ret = dquot_reserve_block(inode, *count);
1656 #ifdef CONFIG_F2FS_FAULT_INJECTION
1657 if (time_to_inject(sbi, FAULT_BLOCK)) {
1658 f2fs_show_injection_info(FAULT_BLOCK);
1664 * let's increase this in prior to actual block count change in order
1665 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1667 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1669 spin_lock(&sbi->stat_lock);
1670 sbi->total_valid_block_count += (block_t)(*count);
1671 avail_user_block_count = sbi->user_block_count -
1672 sbi->current_reserved_blocks;
1674 if (!__allow_reserved_blocks(sbi, inode, true))
1675 avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
1677 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1678 diff = sbi->total_valid_block_count - avail_user_block_count;
1683 sbi->total_valid_block_count -= diff;
1685 spin_unlock(&sbi->stat_lock);
1686 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
1690 spin_unlock(&sbi->stat_lock);
1692 if (unlikely(release))
1693 dquot_release_reservation_block(inode, release);
1694 f2fs_i_blocks_write(inode, *count, true, true);
1698 dquot_release_reservation_block(inode, release);
1702 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1703 struct inode *inode,
1706 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1708 spin_lock(&sbi->stat_lock);
1709 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1710 f2fs_bug_on(sbi, inode->i_blocks < sectors);
1711 sbi->total_valid_block_count -= (block_t)count;
1712 if (sbi->reserved_blocks &&
1713 sbi->current_reserved_blocks < sbi->reserved_blocks)
1714 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
1715 sbi->current_reserved_blocks + count);
1716 spin_unlock(&sbi->stat_lock);
1717 f2fs_i_blocks_write(inode, count, false, true);
1720 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1722 atomic_inc(&sbi->nr_pages[count_type]);
1724 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1725 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1728 set_sbi_flag(sbi, SBI_IS_DIRTY);
1731 static inline void inode_inc_dirty_pages(struct inode *inode)
1733 atomic_inc(&F2FS_I(inode)->dirty_pages);
1734 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1735 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1736 if (IS_NOQUOTA(inode))
1737 inc_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1740 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1742 atomic_dec(&sbi->nr_pages[count_type]);
1745 static inline void inode_dec_dirty_pages(struct inode *inode)
1747 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1748 !S_ISLNK(inode->i_mode))
1751 atomic_dec(&F2FS_I(inode)->dirty_pages);
1752 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1753 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1754 if (IS_NOQUOTA(inode))
1755 dec_page_count(F2FS_I_SB(inode), F2FS_DIRTY_QDATA);
1758 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1760 return atomic_read(&sbi->nr_pages[count_type]);
1763 static inline int get_dirty_pages(struct inode *inode)
1765 return atomic_read(&F2FS_I(inode)->dirty_pages);
1768 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1770 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1771 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1772 sbi->log_blocks_per_seg;
1774 return segs / sbi->segs_per_sec;
1777 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1779 return sbi->total_valid_block_count;
1782 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1784 return sbi->discard_blks;
1787 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1789 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1791 /* return NAT or SIT bitmap */
1792 if (flag == NAT_BITMAP)
1793 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1794 else if (flag == SIT_BITMAP)
1795 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1800 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1802 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1805 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1807 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1810 if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
1811 offset = (flag == SIT_BITMAP) ?
1812 le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
1813 return &ckpt->sit_nat_version_bitmap + offset;
1816 if (__cp_payload(sbi) > 0) {
1817 if (flag == NAT_BITMAP)
1818 return &ckpt->sit_nat_version_bitmap;
1820 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1822 offset = (flag == NAT_BITMAP) ?
1823 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1824 return &ckpt->sit_nat_version_bitmap + offset;
1828 static inline block_t __start_cp_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 == 2)
1833 start_addr += sbi->blocks_per_seg;
1837 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1839 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1841 if (sbi->cur_cp_pack == 1)
1842 start_addr += sbi->blocks_per_seg;
1846 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1848 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1851 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1853 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1856 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
1857 struct inode *inode, bool is_inode)
1859 block_t valid_block_count;
1860 unsigned int valid_node_count;
1861 bool quota = inode && !is_inode;
1864 int ret = dquot_reserve_block(inode, 1);
1869 #ifdef CONFIG_F2FS_FAULT_INJECTION
1870 if (time_to_inject(sbi, FAULT_BLOCK)) {
1871 f2fs_show_injection_info(FAULT_BLOCK);
1876 spin_lock(&sbi->stat_lock);
1878 valid_block_count = sbi->total_valid_block_count +
1879 sbi->current_reserved_blocks + 1;
1881 if (!__allow_reserved_blocks(sbi, inode, false))
1882 valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
1884 if (unlikely(valid_block_count > sbi->user_block_count)) {
1885 spin_unlock(&sbi->stat_lock);
1889 valid_node_count = sbi->total_valid_node_count + 1;
1890 if (unlikely(valid_node_count > sbi->total_node_count)) {
1891 spin_unlock(&sbi->stat_lock);
1895 sbi->total_valid_node_count++;
1896 sbi->total_valid_block_count++;
1897 spin_unlock(&sbi->stat_lock);
1901 f2fs_mark_inode_dirty_sync(inode, true);
1903 f2fs_i_blocks_write(inode, 1, true, true);
1906 percpu_counter_inc(&sbi->alloc_valid_block_count);
1911 dquot_release_reservation_block(inode, 1);
1915 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1916 struct inode *inode, bool is_inode)
1918 spin_lock(&sbi->stat_lock);
1920 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1921 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1922 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
1924 sbi->total_valid_node_count--;
1925 sbi->total_valid_block_count--;
1926 if (sbi->reserved_blocks &&
1927 sbi->current_reserved_blocks < sbi->reserved_blocks)
1928 sbi->current_reserved_blocks++;
1930 spin_unlock(&sbi->stat_lock);
1933 f2fs_i_blocks_write(inode, 1, false, true);
1936 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1938 return sbi->total_valid_node_count;
1941 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1943 percpu_counter_inc(&sbi->total_valid_inode_count);
1946 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1948 percpu_counter_dec(&sbi->total_valid_inode_count);
1951 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1953 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1956 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1957 pgoff_t index, bool for_write)
1959 #ifdef CONFIG_F2FS_FAULT_INJECTION
1960 struct page *page = find_lock_page(mapping, index);
1965 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1966 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
1971 return grab_cache_page(mapping, index);
1972 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1975 static inline struct page *f2fs_pagecache_get_page(
1976 struct address_space *mapping, pgoff_t index,
1977 int fgp_flags, gfp_t gfp_mask)
1979 #ifdef CONFIG_F2FS_FAULT_INJECTION
1980 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_GET)) {
1981 f2fs_show_injection_info(FAULT_PAGE_GET);
1985 return pagecache_get_page(mapping, index, fgp_flags, gfp_mask);
1988 static inline void f2fs_copy_page(struct page *src, struct page *dst)
1990 char *src_kaddr = kmap(src);
1991 char *dst_kaddr = kmap(dst);
1993 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1998 static inline void f2fs_put_page(struct page *page, int unlock)
2004 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
2010 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
2013 f2fs_put_page(dn->node_page, 1);
2014 if (dn->inode_page && dn->node_page != dn->inode_page)
2015 f2fs_put_page(dn->inode_page, 0);
2016 dn->node_page = NULL;
2017 dn->inode_page = NULL;
2020 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
2023 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
2026 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
2031 entry = kmem_cache_alloc(cachep, flags);
2033 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
2037 static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
2038 int npages, bool no_fail)
2043 /* No failure on bio allocation */
2044 bio = bio_alloc(GFP_NOIO, npages);
2046 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
2049 #ifdef CONFIG_F2FS_FAULT_INJECTION
2050 if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
2051 f2fs_show_injection_info(FAULT_ALLOC_BIO);
2055 return bio_alloc(GFP_KERNEL, npages);
2058 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
2059 unsigned long index, void *item)
2061 while (radix_tree_insert(root, index, item))
2065 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2067 static inline bool IS_INODE(struct page *page)
2069 struct f2fs_node *p = F2FS_NODE(page);
2071 return RAW_IS_INODE(p);
2074 static inline int offset_in_addr(struct f2fs_inode *i)
2076 return (i->i_inline & F2FS_EXTRA_ATTR) ?
2077 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
2080 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
2082 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
2085 static inline int f2fs_has_extra_attr(struct inode *inode);
2086 static inline block_t datablock_addr(struct inode *inode,
2087 struct page *node_page, unsigned int offset)
2089 struct f2fs_node *raw_node;
2092 bool is_inode = IS_INODE(node_page);
2094 raw_node = F2FS_NODE(node_page);
2096 /* from GC path only */
2099 base = offset_in_addr(&raw_node->i);
2100 else if (f2fs_has_extra_attr(inode))
2101 base = get_extra_isize(inode);
2104 addr_array = blkaddr_in_node(raw_node);
2105 return le32_to_cpu(addr_array[base + offset]);
2108 static inline int f2fs_test_bit(unsigned int nr, char *addr)
2113 mask = 1 << (7 - (nr & 0x07));
2114 return mask & *addr;
2117 static inline void f2fs_set_bit(unsigned int nr, char *addr)
2122 mask = 1 << (7 - (nr & 0x07));
2126 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
2131 mask = 1 << (7 - (nr & 0x07));
2135 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
2141 mask = 1 << (7 - (nr & 0x07));
2147 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
2153 mask = 1 << (7 - (nr & 0x07));
2159 static inline void f2fs_change_bit(unsigned int nr, char *addr)
2164 mask = 1 << (7 - (nr & 0x07));
2171 #define F2FS_SECRM_FL 0x00000001 /* Secure deletion */
2172 #define F2FS_UNRM_FL 0x00000002 /* Undelete */
2173 #define F2FS_COMPR_FL 0x00000004 /* Compress file */
2174 #define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
2175 #define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
2176 #define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
2177 #define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
2178 #define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
2179 /* Reserved for compression usage... */
2180 #define F2FS_DIRTY_FL 0x00000100
2181 #define F2FS_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
2182 #define F2FS_NOCOMPR_FL 0x00000400 /* Don't compress */
2183 #define F2FS_ENCRYPT_FL 0x00000800 /* encrypted file */
2184 /* End compression flags --- maybe not all used */
2185 #define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
2186 #define F2FS_IMAGIC_FL 0x00002000 /* AFS directory */
2187 #define F2FS_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
2188 #define F2FS_NOTAIL_FL 0x00008000 /* file tail should not be merged */
2189 #define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
2190 #define F2FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
2191 #define F2FS_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
2192 #define F2FS_EXTENTS_FL 0x00080000 /* Inode uses extents */
2193 #define F2FS_EA_INODE_FL 0x00200000 /* Inode used for large EA */
2194 #define F2FS_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
2195 #define F2FS_INLINE_DATA_FL 0x10000000 /* Inode has inline data. */
2196 #define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
2197 #define F2FS_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
2199 #define F2FS_FL_USER_VISIBLE 0x304BDFFF /* User visible flags */
2200 #define F2FS_FL_USER_MODIFIABLE 0x204BC0FF /* User modifiable flags */
2202 /* Flags we can manipulate with through F2FS_IOC_FSSETXATTR */
2203 #define F2FS_FL_XFLAG_VISIBLE (F2FS_SYNC_FL | \
2204 F2FS_IMMUTABLE_FL | \
2208 F2FS_PROJINHERIT_FL)
2210 /* Flags that should be inherited by new inodes from their parent. */
2211 #define F2FS_FL_INHERITED (F2FS_SECRM_FL | F2FS_UNRM_FL | F2FS_COMPR_FL |\
2212 F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL |\
2213 F2FS_NOCOMPR_FL | F2FS_JOURNAL_DATA_FL |\
2214 F2FS_NOTAIL_FL | F2FS_DIRSYNC_FL |\
2215 F2FS_PROJINHERIT_FL)
2217 /* Flags that are appropriate for regular files (all but dir-specific ones). */
2218 #define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_TOPDIR_FL))
2220 /* Flags that are appropriate for non-directories/regular files. */
2221 #define F2FS_OTHER_FLMASK (F2FS_NODUMP_FL | F2FS_NOATIME_FL)
2223 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
2227 else if (S_ISREG(mode))
2228 return flags & F2FS_REG_FLMASK;
2230 return flags & F2FS_OTHER_FLMASK;
2233 /* used for f2fs_inode_info->flags */
2235 FI_NEW_INODE, /* indicate newly allocated inode */
2236 FI_DIRTY_INODE, /* indicate inode is dirty or not */
2237 FI_AUTO_RECOVER, /* indicate inode is recoverable */
2238 FI_DIRTY_DIR, /* indicate directory has dirty pages */
2239 FI_INC_LINK, /* need to increment i_nlink */
2240 FI_ACL_MODE, /* indicate acl mode */
2241 FI_NO_ALLOC, /* should not allocate any blocks */
2242 FI_FREE_NID, /* free allocated nide */
2243 FI_NO_EXTENT, /* not to use the extent cache */
2244 FI_INLINE_XATTR, /* used for inline xattr */
2245 FI_INLINE_DATA, /* used for inline data*/
2246 FI_INLINE_DENTRY, /* used for inline dentry */
2247 FI_APPEND_WRITE, /* inode has appended data */
2248 FI_UPDATE_WRITE, /* inode has in-place-update data */
2249 FI_NEED_IPU, /* used for ipu per file */
2250 FI_ATOMIC_FILE, /* indicate atomic file */
2251 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
2252 FI_VOLATILE_FILE, /* indicate volatile file */
2253 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2254 FI_DROP_CACHE, /* drop dirty page cache */
2255 FI_DATA_EXIST, /* indicate data exists */
2256 FI_INLINE_DOTS, /* indicate inline dot dentries */
2257 FI_DO_DEFRAG, /* indicate defragment is running */
2258 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2259 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2260 FI_HOT_DATA, /* indicate file is hot */
2261 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2262 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2263 FI_PIN_FILE, /* indicate file should not be gced */
2264 FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
2267 static inline void __mark_inode_dirty_flag(struct inode *inode,
2271 case FI_INLINE_XATTR:
2272 case FI_INLINE_DATA:
2273 case FI_INLINE_DENTRY:
2278 case FI_INLINE_DOTS:
2280 f2fs_mark_inode_dirty_sync(inode, true);
2284 static inline void set_inode_flag(struct inode *inode, int flag)
2286 if (!test_bit(flag, &F2FS_I(inode)->flags))
2287 set_bit(flag, &F2FS_I(inode)->flags);
2288 __mark_inode_dirty_flag(inode, flag, true);
2291 static inline int is_inode_flag_set(struct inode *inode, int flag)
2293 return test_bit(flag, &F2FS_I(inode)->flags);
2296 static inline void clear_inode_flag(struct inode *inode, int flag)
2298 if (test_bit(flag, &F2FS_I(inode)->flags))
2299 clear_bit(flag, &F2FS_I(inode)->flags);
2300 __mark_inode_dirty_flag(inode, flag, false);
2303 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2305 F2FS_I(inode)->i_acl_mode = mode;
2306 set_inode_flag(inode, FI_ACL_MODE);
2307 f2fs_mark_inode_dirty_sync(inode, false);
2310 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2316 f2fs_mark_inode_dirty_sync(inode, true);
2319 static inline void f2fs_i_blocks_write(struct inode *inode,
2320 block_t diff, bool add, bool claim)
2322 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2323 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2325 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2328 dquot_claim_block(inode, diff);
2330 dquot_alloc_block_nofail(inode, diff);
2332 dquot_free_block(inode, diff);
2335 f2fs_mark_inode_dirty_sync(inode, true);
2336 if (clean || recover)
2337 set_inode_flag(inode, FI_AUTO_RECOVER);
2340 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2342 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2343 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2345 if (i_size_read(inode) == i_size)
2348 i_size_write(inode, i_size);
2349 f2fs_mark_inode_dirty_sync(inode, true);
2350 if (clean || recover)
2351 set_inode_flag(inode, FI_AUTO_RECOVER);
2354 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2356 F2FS_I(inode)->i_current_depth = depth;
2357 f2fs_mark_inode_dirty_sync(inode, true);
2360 static inline void f2fs_i_gc_failures_write(struct inode *inode,
2363 F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN] = count;
2364 f2fs_mark_inode_dirty_sync(inode, true);
2367 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2369 F2FS_I(inode)->i_xattr_nid = xnid;
2370 f2fs_mark_inode_dirty_sync(inode, true);
2373 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2375 F2FS_I(inode)->i_pino = pino;
2376 f2fs_mark_inode_dirty_sync(inode, true);
2379 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2381 struct f2fs_inode_info *fi = F2FS_I(inode);
2383 if (ri->i_inline & F2FS_INLINE_XATTR)
2384 set_bit(FI_INLINE_XATTR, &fi->flags);
2385 if (ri->i_inline & F2FS_INLINE_DATA)
2386 set_bit(FI_INLINE_DATA, &fi->flags);
2387 if (ri->i_inline & F2FS_INLINE_DENTRY)
2388 set_bit(FI_INLINE_DENTRY, &fi->flags);
2389 if (ri->i_inline & F2FS_DATA_EXIST)
2390 set_bit(FI_DATA_EXIST, &fi->flags);
2391 if (ri->i_inline & F2FS_INLINE_DOTS)
2392 set_bit(FI_INLINE_DOTS, &fi->flags);
2393 if (ri->i_inline & F2FS_EXTRA_ATTR)
2394 set_bit(FI_EXTRA_ATTR, &fi->flags);
2395 if (ri->i_inline & F2FS_PIN_FILE)
2396 set_bit(FI_PIN_FILE, &fi->flags);
2399 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2403 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2404 ri->i_inline |= F2FS_INLINE_XATTR;
2405 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2406 ri->i_inline |= F2FS_INLINE_DATA;
2407 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2408 ri->i_inline |= F2FS_INLINE_DENTRY;
2409 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2410 ri->i_inline |= F2FS_DATA_EXIST;
2411 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2412 ri->i_inline |= F2FS_INLINE_DOTS;
2413 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2414 ri->i_inline |= F2FS_EXTRA_ATTR;
2415 if (is_inode_flag_set(inode, FI_PIN_FILE))
2416 ri->i_inline |= F2FS_PIN_FILE;
2419 static inline int f2fs_has_extra_attr(struct inode *inode)
2421 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2424 static inline int f2fs_has_inline_xattr(struct inode *inode)
2426 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2429 static inline unsigned int addrs_per_inode(struct inode *inode)
2431 return CUR_ADDRS_PER_INODE(inode) - get_inline_xattr_addrs(inode);
2434 static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
2436 struct f2fs_inode *ri = F2FS_INODE(page);
2438 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2439 get_inline_xattr_addrs(inode)]);
2442 static inline int inline_xattr_size(struct inode *inode)
2444 return get_inline_xattr_addrs(inode) * sizeof(__le32);
2447 static inline int f2fs_has_inline_data(struct inode *inode)
2449 return is_inode_flag_set(inode, FI_INLINE_DATA);
2452 static inline int f2fs_exist_data(struct inode *inode)
2454 return is_inode_flag_set(inode, FI_DATA_EXIST);
2457 static inline int f2fs_has_inline_dots(struct inode *inode)
2459 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2462 static inline bool f2fs_is_pinned_file(struct inode *inode)
2464 return is_inode_flag_set(inode, FI_PIN_FILE);
2467 static inline bool f2fs_is_atomic_file(struct inode *inode)
2469 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2472 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2474 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2477 static inline bool f2fs_is_volatile_file(struct inode *inode)
2479 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2482 static inline bool f2fs_is_first_block_written(struct inode *inode)
2484 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2487 static inline bool f2fs_is_drop_cache(struct inode *inode)
2489 return is_inode_flag_set(inode, FI_DROP_CACHE);
2492 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2494 struct f2fs_inode *ri = F2FS_INODE(page);
2495 int extra_size = get_extra_isize(inode);
2497 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2500 static inline int f2fs_has_inline_dentry(struct inode *inode)
2502 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2505 static inline int is_file(struct inode *inode, int type)
2507 return F2FS_I(inode)->i_advise & type;
2510 static inline void set_file(struct inode *inode, int type)
2512 F2FS_I(inode)->i_advise |= type;
2513 f2fs_mark_inode_dirty_sync(inode, true);
2516 static inline void clear_file(struct inode *inode, int type)
2518 F2FS_I(inode)->i_advise &= ~type;
2519 f2fs_mark_inode_dirty_sync(inode, true);
2522 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2527 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2529 spin_lock(&sbi->inode_lock[DIRTY_META]);
2530 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2531 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2534 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2535 file_keep_isize(inode) ||
2536 i_size_read(inode) & ~PAGE_MASK)
2539 if (!timespec64_equal(F2FS_I(inode)->i_disk_time, &inode->i_atime))
2541 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 1, &inode->i_ctime))
2543 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 2, &inode->i_mtime))
2545 if (!timespec64_equal(F2FS_I(inode)->i_disk_time + 3,
2546 &F2FS_I(inode)->i_crtime))
2549 down_read(&F2FS_I(inode)->i_sem);
2550 ret = F2FS_I(inode)->last_disk_size == i_size_read(inode);
2551 up_read(&F2FS_I(inode)->i_sem);
2556 static inline bool f2fs_readonly(struct super_block *sb)
2558 return sb_rdonly(sb);
2561 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2563 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2566 static inline bool is_dot_dotdot(const struct qstr *str)
2568 if (str->len == 1 && str->name[0] == '.')
2571 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2577 static inline bool f2fs_may_extent_tree(struct inode *inode)
2579 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
2580 is_inode_flag_set(inode, FI_NO_EXTENT))
2583 return S_ISREG(inode->i_mode);
2586 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2587 size_t size, gfp_t flags)
2589 #ifdef CONFIG_F2FS_FAULT_INJECTION
2590 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2591 f2fs_show_injection_info(FAULT_KMALLOC);
2595 return kmalloc(size, flags);
2598 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
2599 size_t size, gfp_t flags)
2601 return f2fs_kmalloc(sbi, size, flags | __GFP_ZERO);
2604 static inline void *f2fs_kvmalloc(struct f2fs_sb_info *sbi,
2605 size_t size, gfp_t flags)
2607 #ifdef CONFIG_F2FS_FAULT_INJECTION
2608 if (time_to_inject(sbi, FAULT_KVMALLOC)) {
2609 f2fs_show_injection_info(FAULT_KVMALLOC);
2613 return kvmalloc(size, flags);
2616 static inline void *f2fs_kvzalloc(struct f2fs_sb_info *sbi,
2617 size_t size, gfp_t flags)
2619 return f2fs_kvmalloc(sbi, size, flags | __GFP_ZERO);
2622 static inline int get_extra_isize(struct inode *inode)
2624 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2627 static inline int get_inline_xattr_addrs(struct inode *inode)
2629 return F2FS_I(inode)->i_inline_xattr_size;
2632 #define f2fs_get_inode_mode(i) \
2633 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2634 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2636 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2637 (offsetof(struct f2fs_inode, i_extra_end) - \
2638 offsetof(struct f2fs_inode, i_extra_isize)) \
2640 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2641 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2642 ((offsetof(typeof(*f2fs_inode), field) + \
2643 sizeof((f2fs_inode)->field)) \
2644 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2646 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2650 spin_lock(&sbi->iostat_lock);
2651 for (i = 0; i < NR_IO_TYPE; i++)
2652 sbi->write_iostat[i] = 0;
2653 spin_unlock(&sbi->iostat_lock);
2656 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2657 enum iostat_type type, unsigned long long io_bytes)
2659 if (!sbi->iostat_enable)
2661 spin_lock(&sbi->iostat_lock);
2662 sbi->write_iostat[type] += io_bytes;
2664 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2665 sbi->write_iostat[APP_BUFFERED_IO] =
2666 sbi->write_iostat[APP_WRITE_IO] -
2667 sbi->write_iostat[APP_DIRECT_IO];
2668 spin_unlock(&sbi->iostat_lock);
2671 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2672 block_t blkaddr, int type);
2673 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2674 static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
2675 block_t blkaddr, int type)
2677 if (!f2fs_is_valid_blkaddr(sbi, blkaddr, type)) {
2678 f2fs_msg(sbi->sb, KERN_ERR,
2679 "invalid blkaddr: %u, type: %d, run fsck to fix.",
2681 f2fs_bug_on(sbi, 1);
2685 static inline bool __is_valid_data_blkaddr(block_t blkaddr)
2687 if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
2692 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info *sbi,
2695 if (!__is_valid_data_blkaddr(blkaddr))
2697 verify_blkaddr(sbi, blkaddr, DATA_GENERIC);
2704 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2705 void f2fs_truncate_data_blocks(struct dnode_of_data *dn);
2706 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock);
2707 int f2fs_truncate(struct inode *inode);
2708 int f2fs_getattr(const struct path *path, struct kstat *stat,
2709 u32 request_mask, unsigned int flags);
2710 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2711 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2712 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2713 int f2fs_precache_extents(struct inode *inode);
2714 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2715 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2716 int f2fs_pin_file_control(struct inode *inode, bool inc);
2721 void f2fs_set_inode_flags(struct inode *inode);
2722 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2723 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2724 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2725 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2726 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2727 void f2fs_update_inode(struct inode *inode, struct page *node_page);
2728 void f2fs_update_inode_page(struct inode *inode);
2729 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2730 void f2fs_evict_inode(struct inode *inode);
2731 void f2fs_handle_failed_inode(struct inode *inode);
2736 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
2737 bool hot, bool set);
2738 struct dentry *f2fs_get_parent(struct dentry *child);
2743 unsigned char f2fs_get_de_type(struct f2fs_dir_entry *de);
2744 struct f2fs_dir_entry *f2fs_find_target_dentry(struct fscrypt_name *fname,
2745 f2fs_hash_t namehash, int *max_slots,
2746 struct f2fs_dentry_ptr *d);
2747 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2748 unsigned int start_pos, struct fscrypt_str *fstr);
2749 void f2fs_do_make_empty_dir(struct inode *inode, struct inode *parent,
2750 struct f2fs_dentry_ptr *d);
2751 struct page *f2fs_init_inode_metadata(struct inode *inode, struct inode *dir,
2752 const struct qstr *new_name,
2753 const struct qstr *orig_name, struct page *dpage);
2754 void f2fs_update_parent_metadata(struct inode *dir, struct inode *inode,
2755 unsigned int current_depth);
2756 int f2fs_room_for_filename(const void *bitmap, int slots, int max_slots);
2757 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2758 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2759 struct fscrypt_name *fname, struct page **res_page);
2760 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2761 const struct qstr *child, struct page **res_page);
2762 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2763 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2764 struct page **page);
2765 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2766 struct page *page, struct inode *inode);
2767 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2768 const struct qstr *name, f2fs_hash_t name_hash,
2769 unsigned int bit_pos);
2770 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2771 const struct qstr *orig_name,
2772 struct inode *inode, nid_t ino, umode_t mode);
2773 int f2fs_add_dentry(struct inode *dir, struct fscrypt_name *fname,
2774 struct inode *inode, nid_t ino, umode_t mode);
2775 int f2fs_do_add_link(struct inode *dir, const struct qstr *name,
2776 struct inode *inode, nid_t ino, umode_t mode);
2777 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2778 struct inode *dir, struct inode *inode);
2779 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2780 bool f2fs_empty_dir(struct inode *dir);
2782 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2784 return f2fs_do_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2785 inode, inode->i_ino, inode->i_mode);
2791 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2792 void f2fs_inode_synced(struct inode *inode);
2793 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
2794 void f2fs_quota_off_umount(struct super_block *sb);
2795 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2796 int f2fs_sync_fs(struct super_block *sb, int sync);
2797 extern __printf(3, 4)
2798 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2799 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);
2804 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2805 struct fscrypt_name *fname);
2810 struct dnode_of_data;
2813 int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid);
2814 bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type);
2815 int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2816 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2817 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2818 void f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
2819 struct node_info *ni);
2820 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2821 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2822 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
2823 int f2fs_truncate_xattr_node(struct inode *inode);
2824 int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2825 int f2fs_remove_inode_page(struct inode *inode);
2826 struct page *f2fs_new_inode_page(struct inode *inode);
2827 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
2828 void f2fs_ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2829 struct page *f2fs_get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2830 struct page *f2fs_get_node_page_ra(struct page *parent, int start);
2831 void f2fs_move_node_page(struct page *node_page, int gc_type);
2832 int f2fs_fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2833 struct writeback_control *wbc, bool atomic);
2834 int f2fs_sync_node_pages(struct f2fs_sb_info *sbi,
2835 struct writeback_control *wbc,
2836 bool do_balance, enum iostat_type io_type);
2837 int f2fs_build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2838 bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2839 void f2fs_alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2840 void f2fs_alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2841 int f2fs_try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2842 void f2fs_recover_inline_xattr(struct inode *inode, struct page *page);
2843 int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
2844 int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2845 void f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
2846 unsigned int segno, struct f2fs_summary_block *sum);
2847 void f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2848 int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
2849 void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
2850 int __init f2fs_create_node_manager_caches(void);
2851 void f2fs_destroy_node_manager_caches(void);
2856 bool f2fs_need_SSR(struct f2fs_sb_info *sbi);
2857 void f2fs_register_inmem_page(struct inode *inode, struct page *page);
2858 void f2fs_drop_inmem_pages_all(struct f2fs_sb_info *sbi, bool gc_failure);
2859 void f2fs_drop_inmem_pages(struct inode *inode);
2860 void f2fs_drop_inmem_page(struct inode *inode, struct page *page);
2861 int f2fs_commit_inmem_pages(struct inode *inode);
2862 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2863 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2864 int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino);
2865 int f2fs_create_flush_cmd_control(struct f2fs_sb_info *sbi);
2866 int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
2867 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2868 void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2869 bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2870 void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
2871 void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
2872 bool f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
2873 void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
2874 struct cp_control *cpc);
2875 void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
2876 int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2877 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi);
2878 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2879 bool f2fs_exist_trim_candidates(struct f2fs_sb_info *sbi,
2880 struct cp_control *cpc);
2881 struct page *f2fs_get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2882 void f2fs_update_meta_page(struct f2fs_sb_info *sbi, void *src,
2884 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
2885 enum iostat_type io_type);
2886 void f2fs_do_write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2887 void f2fs_outplace_write_data(struct dnode_of_data *dn,
2888 struct f2fs_io_info *fio);
2889 int f2fs_inplace_write_data(struct f2fs_io_info *fio);
2890 void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2891 block_t old_blkaddr, block_t new_blkaddr,
2892 bool recover_curseg, bool recover_newaddr);
2893 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2894 block_t old_addr, block_t new_addr,
2895 unsigned char version, bool recover_curseg,
2896 bool recover_newaddr);
2897 void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2898 block_t old_blkaddr, block_t *new_blkaddr,
2899 struct f2fs_summary *sum, int type,
2900 struct f2fs_io_info *fio, bool add_list);
2901 void f2fs_wait_on_page_writeback(struct page *page,
2902 enum page_type type, bool ordered);
2903 void f2fs_wait_on_block_writeback(struct f2fs_sb_info *sbi, block_t blkaddr);
2904 void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2905 void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2906 int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2907 unsigned int val, int alloc);
2908 void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2909 int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
2910 void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
2911 int __init f2fs_create_segment_manager_caches(void);
2912 void f2fs_destroy_segment_manager_caches(void);
2913 int f2fs_rw_hint_to_seg_type(enum rw_hint hint);
2914 enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi,
2915 enum page_type type, enum temp_type temp);
2920 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2921 struct page *f2fs_grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2922 struct page *f2fs_get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2923 struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2924 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
2925 block_t blkaddr, int type);
2926 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2927 int type, bool sync);
2928 void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2929 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2930 long nr_to_write, enum iostat_type io_type);
2931 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2932 void f2fs_remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2933 void f2fs_release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2934 bool f2fs_exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2935 void f2fs_set_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2936 unsigned int devidx, int type);
2937 bool f2fs_is_dirty_device(struct f2fs_sb_info *sbi, nid_t ino,
2938 unsigned int devidx, int type);
2939 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2940 int f2fs_acquire_orphan_inode(struct f2fs_sb_info *sbi);
2941 void f2fs_release_orphan_inode(struct f2fs_sb_info *sbi);
2942 void f2fs_add_orphan_inode(struct inode *inode);
2943 void f2fs_remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2944 int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi);
2945 int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi);
2946 void f2fs_update_dirty_page(struct inode *inode, struct page *page);
2947 void f2fs_remove_dirty_inode(struct inode *inode);
2948 int f2fs_sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2949 int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2950 void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi);
2951 int __init f2fs_create_checkpoint_caches(void);
2952 void f2fs_destroy_checkpoint_caches(void);
2957 int f2fs_init_post_read_processing(void);
2958 void f2fs_destroy_post_read_processing(void);
2959 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
2960 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
2961 struct inode *inode, nid_t ino, pgoff_t idx,
2962 enum page_type type);
2963 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
2964 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2965 void f2fs_submit_page_write(struct f2fs_io_info *fio);
2966 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2967 block_t blk_addr, struct bio *bio);
2968 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2969 void f2fs_set_data_blkaddr(struct dnode_of_data *dn);
2970 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2971 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2972 int f2fs_reserve_new_block(struct dnode_of_data *dn);
2973 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2974 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2975 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2976 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
2977 int op_flags, bool for_write);
2978 struct page *f2fs_find_data_page(struct inode *inode, pgoff_t index);
2979 struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
2981 struct page *f2fs_get_new_data_page(struct inode *inode,
2982 struct page *ipage, pgoff_t index, bool new_i_size);
2983 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
2984 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2985 int create, int flag);
2986 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2987 u64 start, u64 len);
2988 bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
2989 bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
2990 void f2fs_invalidate_page(struct page *page, unsigned int offset,
2991 unsigned int length);
2992 int f2fs_release_page(struct page *page, gfp_t wait);
2993 #ifdef CONFIG_MIGRATION
2994 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2995 struct page *page, enum migrate_mode mode);
2997 bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
2998 void f2fs_clear_radix_tree_dirty_tag(struct page *page);
3003 int f2fs_start_gc_thread(struct f2fs_sb_info *sbi);
3004 void f2fs_stop_gc_thread(struct f2fs_sb_info *sbi);
3005 block_t f2fs_start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
3006 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
3007 unsigned int segno);
3008 void f2fs_build_gc_manager(struct f2fs_sb_info *sbi);
3013 int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
3014 bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi);
3019 #ifdef CONFIG_F2FS_STAT_FS
3020 struct f2fs_stat_info {
3021 struct list_head stat_list;
3022 struct f2fs_sb_info *sbi;
3023 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
3024 int main_area_segs, main_area_sections, main_area_zones;
3025 unsigned long long hit_largest, hit_cached, hit_rbtree;
3026 unsigned long long hit_total, total_ext;
3027 int ext_tree, zombie_tree, ext_node;
3028 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
3029 int ndirty_data, ndirty_qdata;
3031 unsigned int ndirty_dirs, ndirty_files, nquota_files, ndirty_all;
3032 int nats, dirty_nats, sits, dirty_sits;
3033 int free_nids, avail_nids, alloc_nids;
3034 int total_count, utilization;
3035 int bg_gc, nr_wb_cp_data, nr_wb_data;
3036 int nr_flushing, nr_flushed, flush_list_empty;
3037 int nr_discarding, nr_discarded;
3039 unsigned int undiscard_blks;
3040 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
3041 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
3042 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
3043 unsigned int bimodal, avg_vblocks;
3044 int util_free, util_valid, util_invalid;
3045 int rsvd_segs, overp_segs;
3046 int dirty_count, node_pages, meta_pages;
3047 int prefree_count, call_count, cp_count, bg_cp_count;
3048 int tot_segs, node_segs, data_segs, free_segs, free_secs;
3049 int bg_node_segs, bg_data_segs;
3050 int tot_blks, data_blks, node_blks;
3051 int bg_data_blks, bg_node_blks;
3052 unsigned long long skipped_atomic_files[2];
3053 int curseg[NR_CURSEG_TYPE];
3054 int cursec[NR_CURSEG_TYPE];
3055 int curzone[NR_CURSEG_TYPE];
3057 unsigned int segment_count[2];
3058 unsigned int block_count[2];
3059 unsigned int inplace_count;
3060 unsigned long long base_mem, cache_mem, page_mem;
3063 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
3065 return (struct f2fs_stat_info *)sbi->stat_info;
3068 #define stat_inc_cp_count(si) ((si)->cp_count++)
3069 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3070 #define stat_inc_call_count(si) ((si)->call_count++)
3071 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3072 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3073 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3074 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3075 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3076 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3077 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3078 #define stat_inc_inline_xattr(inode) \
3080 if (f2fs_has_inline_xattr(inode)) \
3081 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3083 #define stat_dec_inline_xattr(inode) \
3085 if (f2fs_has_inline_xattr(inode)) \
3086 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3088 #define stat_inc_inline_inode(inode) \
3090 if (f2fs_has_inline_data(inode)) \
3091 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3093 #define stat_dec_inline_inode(inode) \
3095 if (f2fs_has_inline_data(inode)) \
3096 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3098 #define stat_inc_inline_dir(inode) \
3100 if (f2fs_has_inline_dentry(inode)) \
3101 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3103 #define stat_dec_inline_dir(inode) \
3105 if (f2fs_has_inline_dentry(inode)) \
3106 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3108 #define stat_inc_seg_type(sbi, curseg) \
3109 ((sbi)->segment_count[(curseg)->alloc_type]++)
3110 #define stat_inc_block_count(sbi, curseg) \
3111 ((sbi)->block_count[(curseg)->alloc_type]++)
3112 #define stat_inc_inplace_blocks(sbi) \
3113 (atomic_inc(&(sbi)->inplace_count))
3114 #define stat_inc_atomic_write(inode) \
3115 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3116 #define stat_dec_atomic_write(inode) \
3117 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3118 #define stat_update_max_atomic_write(inode) \
3120 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3121 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3123 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3125 #define stat_inc_volatile_write(inode) \
3126 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3127 #define stat_dec_volatile_write(inode) \
3128 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3129 #define stat_update_max_volatile_write(inode) \
3131 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3132 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3134 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3136 #define stat_inc_seg_count(sbi, type, gc_type) \
3138 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3140 if ((type) == SUM_TYPE_DATA) { \
3142 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3145 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3149 #define stat_inc_tot_blk_count(si, blks) \
3150 ((si)->tot_blks += (blks))
3152 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3154 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3155 stat_inc_tot_blk_count(si, blks); \
3156 si->data_blks += (blks); \
3157 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3160 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3162 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3163 stat_inc_tot_blk_count(si, blks); \
3164 si->node_blks += (blks); \
3165 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3168 int f2fs_build_stats(struct f2fs_sb_info *sbi);
3169 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
3170 int __init f2fs_create_root_stats(void);
3171 void f2fs_destroy_root_stats(void);
3173 #define stat_inc_cp_count(si) do { } while (0)
3174 #define stat_inc_bg_cp_count(si) do { } while (0)
3175 #define stat_inc_call_count(si) do { } while (0)
3176 #define stat_inc_bggc_count(si) do { } while (0)
3177 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3178 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3179 #define stat_inc_total_hit(sb) do { } while (0)
3180 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3181 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3182 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3183 #define stat_inc_inline_xattr(inode) do { } while (0)
3184 #define stat_dec_inline_xattr(inode) do { } while (0)
3185 #define stat_inc_inline_inode(inode) do { } while (0)
3186 #define stat_dec_inline_inode(inode) do { } while (0)
3187 #define stat_inc_inline_dir(inode) do { } while (0)
3188 #define stat_dec_inline_dir(inode) do { } while (0)
3189 #define stat_inc_atomic_write(inode) do { } while (0)
3190 #define stat_dec_atomic_write(inode) do { } while (0)
3191 #define stat_update_max_atomic_write(inode) do { } while (0)
3192 #define stat_inc_volatile_write(inode) do { } while (0)
3193 #define stat_dec_volatile_write(inode) do { } while (0)
3194 #define stat_update_max_volatile_write(inode) do { } while (0)
3195 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3196 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3197 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3198 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3199 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3200 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3201 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3203 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
3204 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
3205 static inline int __init f2fs_create_root_stats(void) { return 0; }
3206 static inline void f2fs_destroy_root_stats(void) { }
3209 extern const struct file_operations f2fs_dir_operations;
3210 extern const struct file_operations f2fs_file_operations;
3211 extern const struct inode_operations f2fs_file_inode_operations;
3212 extern const struct address_space_operations f2fs_dblock_aops;
3213 extern const struct address_space_operations f2fs_node_aops;
3214 extern const struct address_space_operations f2fs_meta_aops;
3215 extern const struct inode_operations f2fs_dir_inode_operations;
3216 extern const struct inode_operations f2fs_symlink_inode_operations;
3217 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
3218 extern const struct inode_operations f2fs_special_inode_operations;
3219 extern struct kmem_cache *f2fs_inode_entry_slab;
3224 bool f2fs_may_inline_data(struct inode *inode);
3225 bool f2fs_may_inline_dentry(struct inode *inode);
3226 void f2fs_do_read_inline_data(struct page *page, struct page *ipage);
3227 void f2fs_truncate_inline_inode(struct inode *inode,
3228 struct page *ipage, u64 from);
3229 int f2fs_read_inline_data(struct inode *inode, struct page *page);
3230 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
3231 int f2fs_convert_inline_inode(struct inode *inode);
3232 int f2fs_write_inline_data(struct inode *inode, struct page *page);
3233 bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
3234 struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
3235 struct fscrypt_name *fname, struct page **res_page);
3236 int f2fs_make_empty_inline_dir(struct inode *inode, struct inode *parent,
3237 struct page *ipage);
3238 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
3239 const struct qstr *orig_name,
3240 struct inode *inode, nid_t ino, umode_t mode);
3241 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry,
3242 struct page *page, struct inode *dir,
3243 struct inode *inode);
3244 bool f2fs_empty_inline_dir(struct inode *dir);
3245 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
3246 struct fscrypt_str *fstr);
3247 int f2fs_inline_data_fiemap(struct inode *inode,
3248 struct fiemap_extent_info *fieinfo,
3249 __u64 start, __u64 len);
3254 unsigned long f2fs_shrink_count(struct shrinker *shrink,
3255 struct shrink_control *sc);
3256 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
3257 struct shrink_control *sc);
3258 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
3259 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
3264 struct rb_entry *f2fs_lookup_rb_tree(struct rb_root *root,
3265 struct rb_entry *cached_re, unsigned int ofs);
3266 struct rb_node **f2fs_lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
3267 struct rb_root *root, struct rb_node **parent,
3269 struct rb_entry *f2fs_lookup_rb_tree_ret(struct rb_root *root,
3270 struct rb_entry *cached_re, unsigned int ofs,
3271 struct rb_entry **prev_entry, struct rb_entry **next_entry,
3272 struct rb_node ***insert_p, struct rb_node **insert_parent,
3274 bool f2fs_check_rb_tree_consistence(struct f2fs_sb_info *sbi,
3275 struct rb_root *root);
3276 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
3277 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
3278 void f2fs_drop_extent_tree(struct inode *inode);
3279 unsigned int f2fs_destroy_extent_node(struct inode *inode);
3280 void f2fs_destroy_extent_tree(struct inode *inode);
3281 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
3282 struct extent_info *ei);
3283 void f2fs_update_extent_cache(struct dnode_of_data *dn);
3284 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
3285 pgoff_t fofs, block_t blkaddr, unsigned int len);
3286 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi);
3287 int __init f2fs_create_extent_cache(void);
3288 void f2fs_destroy_extent_cache(void);
3293 int __init f2fs_init_sysfs(void);
3294 void f2fs_exit_sysfs(void);
3295 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
3296 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
3301 static inline bool f2fs_encrypted_inode(struct inode *inode)
3303 return file_is_encrypt(inode);
3306 static inline bool f2fs_encrypted_file(struct inode *inode)
3308 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
3311 static inline void f2fs_set_encrypted_inode(struct inode *inode)
3313 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3314 file_set_encrypt(inode);
3315 inode->i_flags |= S_ENCRYPTED;
3320 * Returns true if the reads of the inode's data need to undergo some
3321 * postprocessing step, like decryption or authenticity verification.
3323 static inline bool f2fs_post_read_required(struct inode *inode)
3325 return f2fs_encrypted_file(inode);
3328 #define F2FS_FEATURE_FUNCS(name, flagname) \
3329 static inline int f2fs_sb_has_##name(struct super_block *sb) \
3331 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_##flagname); \
3334 F2FS_FEATURE_FUNCS(encrypt, ENCRYPT);
3335 F2FS_FEATURE_FUNCS(blkzoned, BLKZONED);
3336 F2FS_FEATURE_FUNCS(extra_attr, EXTRA_ATTR);
3337 F2FS_FEATURE_FUNCS(project_quota, PRJQUOTA);
3338 F2FS_FEATURE_FUNCS(inode_chksum, INODE_CHKSUM);
3339 F2FS_FEATURE_FUNCS(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
3340 F2FS_FEATURE_FUNCS(quota_ino, QUOTA_INO);
3341 F2FS_FEATURE_FUNCS(inode_crtime, INODE_CRTIME);
3342 F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
3344 #ifdef CONFIG_BLK_DEV_ZONED
3345 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
3346 struct block_device *bdev, block_t blkaddr)
3348 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
3351 for (i = 0; i < sbi->s_ndevs; i++)
3352 if (FDEV(i).bdev == bdev)
3353 return FDEV(i).blkz_type[zno];
3358 static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
3360 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
3362 return blk_queue_discard(q) || f2fs_sb_has_blkzoned(sbi->sb);
3365 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3367 clear_opt(sbi, ADAPTIVE);
3368 clear_opt(sbi, LFS);
3371 case F2FS_MOUNT_ADAPTIVE:
3372 set_opt(sbi, ADAPTIVE);
3374 case F2FS_MOUNT_LFS:
3380 static inline bool f2fs_may_encrypt(struct inode *inode)
3382 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3383 umode_t mode = inode->i_mode;
3385 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
3391 static inline bool f2fs_force_buffered_io(struct inode *inode, int rw)
3393 return (f2fs_post_read_required(inode) ||
3394 (rw == WRITE && test_opt(F2FS_I_SB(inode), LFS)) ||
3395 F2FS_I_SB(inode)->s_ndevs);
3398 #ifdef CONFIG_F2FS_FAULT_INJECTION
3399 extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate);
3401 #define f2fs_build_fault_attr(sbi, rate) do { } while (0)