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/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #include <linux/quotaops.h>
26 #ifdef CONFIG_F2FS_FS_ENCRYPTION
27 #include <linux/fscrypt_supp.h>
29 #include <linux/fscrypt_notsupp.h>
31 #include <crypto/hash.h>
33 #ifdef CONFIG_F2FS_CHECK_FS
34 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
36 #define f2fs_bug_on(sbi, condition) \
38 if (unlikely(condition)) { \
40 set_sbi_flag(sbi, SBI_NEED_FSCK); \
45 #ifdef CONFIG_F2FS_FAULT_INJECTION
60 struct f2fs_fault_info {
62 unsigned int inject_rate;
63 unsigned int inject_type;
66 extern char *fault_name[FAULT_MAX];
67 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
73 #define F2FS_MOUNT_BG_GC 0x00000001
74 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
75 #define F2FS_MOUNT_DISCARD 0x00000004
76 #define F2FS_MOUNT_NOHEAP 0x00000008
77 #define F2FS_MOUNT_XATTR_USER 0x00000010
78 #define F2FS_MOUNT_POSIX_ACL 0x00000020
79 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
80 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
81 #define F2FS_MOUNT_INLINE_DATA 0x00000100
82 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
83 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
84 #define F2FS_MOUNT_NOBARRIER 0x00000800
85 #define F2FS_MOUNT_FASTBOOT 0x00001000
86 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
87 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
88 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
89 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
90 #define F2FS_MOUNT_ADAPTIVE 0x00020000
91 #define F2FS_MOUNT_LFS 0x00040000
92 #define F2FS_MOUNT_USRQUOTA 0x00080000
93 #define F2FS_MOUNT_GRPQUOTA 0x00100000
94 #define F2FS_MOUNT_PRJQUOTA 0x00200000
95 #define F2FS_MOUNT_QUOTA 0x00400000
97 #define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
98 #define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
99 #define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option)
101 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
102 typecheck(unsigned long long, b) && \
103 ((long long)((a) - (b)) > 0))
105 typedef u32 block_t; /*
106 * should not change u32, since it is the on-disk block
107 * address format, __le32.
111 struct f2fs_mount_info {
115 #define F2FS_FEATURE_ENCRYPT 0x0001
116 #define F2FS_FEATURE_BLKZONED 0x0002
117 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
118 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
119 #define F2FS_FEATURE_PRJQUOTA 0x0010
120 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
122 #define F2FS_HAS_FEATURE(sb, mask) \
123 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
124 #define F2FS_SET_FEATURE(sb, mask) \
125 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
126 #define F2FS_CLEAR_FEATURE(sb, mask) \
127 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
130 * For checkpoint manager
137 #define CP_UMOUNT 0x00000001
138 #define CP_FASTBOOT 0x00000002
139 #define CP_SYNC 0x00000004
140 #define CP_RECOVERY 0x00000008
141 #define CP_DISCARD 0x00000010
142 #define CP_TRIMMED 0x00000020
144 #define DEF_BATCHED_TRIM_SECTIONS 2048
145 #define BATCHED_TRIM_SEGMENTS(sbi) \
146 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
147 #define BATCHED_TRIM_BLOCKS(sbi) \
148 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
149 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
150 #define DISCARD_ISSUE_RATE 8
151 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
152 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
153 #define DEF_CP_INTERVAL 60 /* 60 secs */
154 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
165 * For CP/NAT/SIT/SSA readahead
175 /* for the list of ino */
177 ORPHAN_INO, /* for orphan ino list */
178 APPEND_INO, /* for append ino list */
179 UPDATE_INO, /* for update ino list */
180 MAX_INO_ENTRY, /* max. list */
184 struct list_head list; /* list head */
185 nid_t ino; /* inode number */
188 /* for the list of inodes to be GCed */
190 struct list_head list; /* list head */
191 struct inode *inode; /* vfs inode pointer */
194 /* for the bitmap indicate blocks to be discarded */
195 struct discard_entry {
196 struct list_head list; /* list head */
197 block_t start_blkaddr; /* start blockaddr of current segment */
198 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
201 /* default discard granularity of inner discard thread, unit: block count */
202 #define DEFAULT_DISCARD_GRANULARITY 16
204 /* max discard pend list number */
205 #define MAX_PLIST_NUM 512
206 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
207 (MAX_PLIST_NUM - 1) : (blk_num - 1))
209 #define P_ACTIVE 0x01
211 #define plist_issue(tag) (((tag) & P_ACTIVE) || ((tag) & P_TRIM))
219 struct discard_info {
220 block_t lstart; /* logical start address */
221 block_t len; /* length */
222 block_t start; /* actual start address in dev */
226 struct rb_node rb_node; /* rb node located in rb-tree */
229 block_t lstart; /* logical start address */
230 block_t len; /* length */
231 block_t start; /* actual start address in dev */
233 struct discard_info di; /* discard info */
236 struct list_head list; /* command list */
237 struct completion wait; /* compleation */
238 struct block_device *bdev; /* bdev */
239 unsigned short ref; /* reference count */
240 unsigned char state; /* state */
241 int error; /* bio error */
244 struct discard_cmd_control {
245 struct task_struct *f2fs_issue_discard; /* discard thread */
246 struct list_head entry_list; /* 4KB discard entry list */
247 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
248 unsigned char pend_list_tag[MAX_PLIST_NUM];/* tag for pending entries */
249 struct list_head wait_list; /* store on-flushing entries */
250 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
251 unsigned int discard_wake; /* to wake up discard thread */
252 struct mutex cmd_lock;
253 unsigned int nr_discards; /* # of discards in the list */
254 unsigned int max_discards; /* max. discards to be issued */
255 unsigned int discard_granularity; /* discard granularity */
256 unsigned int undiscard_blks; /* # of undiscard blocks */
257 atomic_t issued_discard; /* # of issued discard */
258 atomic_t issing_discard; /* # of issing discard */
259 atomic_t discard_cmd_cnt; /* # of cached cmd count */
260 struct rb_root root; /* root of discard rb-tree */
263 /* for the list of fsync inodes, used only during recovery */
264 struct fsync_inode_entry {
265 struct list_head list; /* list head */
266 struct inode *inode; /* vfs inode pointer */
267 block_t blkaddr; /* block address locating the last fsync */
268 block_t last_dentry; /* block address locating the last dentry */
271 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
272 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
274 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
275 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
276 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
277 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
279 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
280 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
282 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
284 int before = nats_in_cursum(journal);
286 journal->n_nats = cpu_to_le16(before + i);
290 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
292 int before = sits_in_cursum(journal);
294 journal->n_sits = cpu_to_le16(before + i);
298 static inline bool __has_cursum_space(struct f2fs_journal *journal,
301 if (type == NAT_JOURNAL)
302 return size <= MAX_NAT_JENTRIES(journal);
303 return size <= MAX_SIT_JENTRIES(journal);
309 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
310 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
311 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
313 #define F2FS_IOCTL_MAGIC 0xf5
314 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
315 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
316 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
317 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
318 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
319 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
320 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
321 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
322 struct f2fs_defragment)
323 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
324 struct f2fs_move_range)
325 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
326 struct f2fs_flush_device)
327 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
328 struct f2fs_gc_range)
329 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
331 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
332 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
333 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
336 * should be same as XFS_IOC_GOINGDOWN.
337 * Flags for going down operation used by FS_IOC_GOINGDOWN
339 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
340 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
341 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
342 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
343 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
345 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
347 * ioctl commands in 32 bit emulation
349 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
350 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
351 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
354 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
355 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
357 struct f2fs_gc_range {
363 struct f2fs_defragment {
368 struct f2fs_move_range {
369 u32 dst_fd; /* destination fd */
370 u64 pos_in; /* start position in src_fd */
371 u64 pos_out; /* start position in dst_fd */
372 u64 len; /* size to move */
375 struct f2fs_flush_device {
376 u32 dev_num; /* device number to flush */
377 u32 segments; /* # of segments to flush */
380 /* for inline stuff */
381 #define DEF_INLINE_RESERVED_SIZE 1
382 static inline int get_extra_isize(struct inode *inode);
383 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
384 (CUR_ADDRS_PER_INODE(inode) - \
385 DEF_INLINE_RESERVED_SIZE - \
386 F2FS_INLINE_XATTR_ADDRS))
389 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
390 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
392 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
393 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
394 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
395 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
396 NR_INLINE_DENTRY(inode) + \
397 INLINE_DENTRY_BITMAP_SIZE(inode)))
400 * For INODE and NODE manager
402 /* for directory operations */
403 struct f2fs_dentry_ptr {
406 struct f2fs_dir_entry *dentry;
407 __u8 (*filename)[F2FS_SLOT_LEN];
412 static inline void make_dentry_ptr_block(struct inode *inode,
413 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
416 d->max = NR_DENTRY_IN_BLOCK;
417 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
418 d->bitmap = &t->dentry_bitmap;
419 d->dentry = t->dentry;
420 d->filename = t->filename;
423 static inline void make_dentry_ptr_inline(struct inode *inode,
424 struct f2fs_dentry_ptr *d, void *t)
426 int entry_cnt = NR_INLINE_DENTRY(inode);
427 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
428 int reserved_size = INLINE_RESERVED_SIZE(inode);
432 d->nr_bitmap = bitmap_size;
434 d->dentry = t + bitmap_size + reserved_size;
435 d->filename = t + bitmap_size + reserved_size +
436 SIZE_OF_DIR_ENTRY * entry_cnt;
440 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
441 * as its node offset to distinguish from index node blocks.
442 * But some bits are used to mark the node block.
444 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
447 ALLOC_NODE, /* allocate a new node page if needed */
448 LOOKUP_NODE, /* look up a node without readahead */
450 * look up a node with readahead called
455 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
457 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
459 /* vector size for gang look-up from extent cache that consists of radix tree */
460 #define EXT_TREE_VEC_SIZE 64
462 /* for in-memory extent cache entry */
463 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
465 /* number of extent info in extent cache we try to shrink */
466 #define EXTENT_CACHE_SHRINK_NUMBER 128
469 struct rb_node rb_node; /* rb node located in rb-tree */
470 unsigned int ofs; /* start offset of the entry */
471 unsigned int len; /* length of the entry */
475 unsigned int fofs; /* start offset in a file */
476 unsigned int len; /* length of the extent */
477 u32 blk; /* start block address of the extent */
481 struct rb_node rb_node;
488 struct extent_info ei; /* extent info */
491 struct list_head list; /* node in global extent list of sbi */
492 struct extent_tree *et; /* extent tree pointer */
496 nid_t ino; /* inode number */
497 struct rb_root root; /* root of extent info rb-tree */
498 struct extent_node *cached_en; /* recently accessed extent node */
499 struct extent_info largest; /* largested extent info */
500 struct list_head list; /* to be used by sbi->zombie_list */
501 rwlock_t lock; /* protect extent info rb-tree */
502 atomic_t node_cnt; /* # of extent node in rb-tree*/
506 * This structure is taken from ext4_map_blocks.
508 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
510 #define F2FS_MAP_NEW (1 << BH_New)
511 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
512 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
513 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
516 struct f2fs_map_blocks {
520 unsigned int m_flags;
521 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
524 /* for flag in get_data_block */
526 F2FS_GET_BLOCK_DEFAULT,
527 F2FS_GET_BLOCK_FIEMAP,
529 F2FS_GET_BLOCK_PRE_DIO,
530 F2FS_GET_BLOCK_PRE_AIO,
534 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
536 #define FADVISE_COLD_BIT 0x01
537 #define FADVISE_LOST_PINO_BIT 0x02
538 #define FADVISE_ENCRYPT_BIT 0x04
539 #define FADVISE_ENC_NAME_BIT 0x08
540 #define FADVISE_KEEP_SIZE_BIT 0x10
542 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
543 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
544 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
545 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
546 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
547 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
548 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
549 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
550 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
551 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
552 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
553 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
554 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
556 #define DEF_DIR_LEVEL 0
558 struct f2fs_inode_info {
559 struct inode vfs_inode; /* serve a vfs inode */
560 unsigned long i_flags; /* keep an inode flags for ioctl */
561 unsigned char i_advise; /* use to give file attribute hints */
562 unsigned char i_dir_level; /* use for dentry level for large dir */
563 unsigned int i_current_depth; /* use only in directory structure */
564 unsigned int i_pino; /* parent inode number */
565 umode_t i_acl_mode; /* keep file acl mode temporarily */
567 /* Use below internally in f2fs*/
568 unsigned long flags; /* use to pass per-file flags */
569 struct rw_semaphore i_sem; /* protect fi info */
570 atomic_t dirty_pages; /* # of dirty pages */
571 f2fs_hash_t chash; /* hash value of given file name */
572 unsigned int clevel; /* maximum level of given file name */
573 struct task_struct *task; /* lookup and create consistency */
574 struct task_struct *cp_task; /* separate cp/wb IO stats*/
575 nid_t i_xattr_nid; /* node id that contains xattrs */
576 loff_t last_disk_size; /* lastly written file size */
579 struct dquot *i_dquot[MAXQUOTAS];
581 /* quota space reservation, managed internally by quota code */
582 qsize_t i_reserved_quota;
584 struct list_head dirty_list; /* dirty list for dirs and files */
585 struct list_head gdirty_list; /* linked in global dirty list */
586 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
587 struct task_struct *inmem_task; /* store inmemory task */
588 struct mutex inmem_lock; /* lock for inmemory pages */
589 struct extent_tree *extent_tree; /* cached extent_tree entry */
590 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
591 struct rw_semaphore i_mmap_sem;
593 int i_extra_isize; /* size of extra space located in i_addr */
594 kprojid_t i_projid; /* id for project quota */
597 static inline void get_extent_info(struct extent_info *ext,
598 struct f2fs_extent *i_ext)
600 ext->fofs = le32_to_cpu(i_ext->fofs);
601 ext->blk = le32_to_cpu(i_ext->blk);
602 ext->len = le32_to_cpu(i_ext->len);
605 static inline void set_raw_extent(struct extent_info *ext,
606 struct f2fs_extent *i_ext)
608 i_ext->fofs = cpu_to_le32(ext->fofs);
609 i_ext->blk = cpu_to_le32(ext->blk);
610 i_ext->len = cpu_to_le32(ext->len);
613 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
614 u32 blk, unsigned int len)
621 static inline bool __is_discard_mergeable(struct discard_info *back,
622 struct discard_info *front)
624 return back->lstart + back->len == front->lstart;
627 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
628 struct discard_info *back)
630 return __is_discard_mergeable(back, cur);
633 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
634 struct discard_info *front)
636 return __is_discard_mergeable(cur, front);
639 static inline bool __is_extent_mergeable(struct extent_info *back,
640 struct extent_info *front)
642 return (back->fofs + back->len == front->fofs &&
643 back->blk + back->len == front->blk);
646 static inline bool __is_back_mergeable(struct extent_info *cur,
647 struct extent_info *back)
649 return __is_extent_mergeable(back, cur);
652 static inline bool __is_front_mergeable(struct extent_info *cur,
653 struct extent_info *front)
655 return __is_extent_mergeable(cur, front);
658 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
659 static inline void __try_update_largest_extent(struct inode *inode,
660 struct extent_tree *et, struct extent_node *en)
662 if (en->ei.len > et->largest.len) {
663 et->largest = en->ei;
664 f2fs_mark_inode_dirty_sync(inode, true);
674 struct f2fs_nm_info {
675 block_t nat_blkaddr; /* base disk address of NAT */
676 nid_t max_nid; /* maximum possible node ids */
677 nid_t available_nids; /* # of available node ids */
678 nid_t next_scan_nid; /* the next nid to be scanned */
679 unsigned int ram_thresh; /* control the memory footprint */
680 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
681 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
683 /* NAT cache management */
684 struct radix_tree_root nat_root;/* root of the nat entry cache */
685 struct radix_tree_root nat_set_root;/* root of the nat set cache */
686 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
687 struct list_head nat_entries; /* cached nat entry list (clean) */
688 unsigned int nat_cnt; /* the # of cached nat entries */
689 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
690 unsigned int nat_blocks; /* # of nat blocks */
692 /* free node ids management */
693 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
694 struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
695 unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */
696 spinlock_t nid_list_lock; /* protect nid lists ops */
697 struct mutex build_lock; /* lock for build free nids */
698 unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE];
699 unsigned char *nat_block_bitmap;
700 unsigned short *free_nid_count; /* free nid count of NAT block */
703 char *nat_bitmap; /* NAT bitmap pointer */
705 unsigned int nat_bits_blocks; /* # of nat bits blocks */
706 unsigned char *nat_bits; /* NAT bits blocks */
707 unsigned char *full_nat_bits; /* full NAT pages */
708 unsigned char *empty_nat_bits; /* empty NAT pages */
709 #ifdef CONFIG_F2FS_CHECK_FS
710 char *nat_bitmap_mir; /* NAT bitmap mirror */
712 int bitmap_size; /* bitmap size */
716 * this structure is used as one of function parameters.
717 * all the information are dedicated to a given direct node block determined
718 * by the data offset in a file.
720 struct dnode_of_data {
721 struct inode *inode; /* vfs inode pointer */
722 struct page *inode_page; /* its inode page, NULL is possible */
723 struct page *node_page; /* cached direct node page */
724 nid_t nid; /* node id of the direct node block */
725 unsigned int ofs_in_node; /* data offset in the node page */
726 bool inode_page_locked; /* inode page is locked or not */
727 bool node_changed; /* is node block changed */
728 char cur_level; /* level of hole node page */
729 char max_level; /* level of current page located */
730 block_t data_blkaddr; /* block address of the node block */
733 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
734 struct page *ipage, struct page *npage, nid_t nid)
736 memset(dn, 0, sizeof(*dn));
738 dn->inode_page = ipage;
739 dn->node_page = npage;
746 * By default, there are 6 active log areas across the whole main area.
747 * When considering hot and cold data separation to reduce cleaning overhead,
748 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
750 * In the current design, you should not change the numbers intentionally.
751 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
752 * logs individually according to the underlying devices. (default: 6)
753 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
754 * data and 8 for node logs.
756 #define NR_CURSEG_DATA_TYPE (3)
757 #define NR_CURSEG_NODE_TYPE (3)
758 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
761 CURSEG_HOT_DATA = 0, /* directory entry blocks */
762 CURSEG_WARM_DATA, /* data blocks */
763 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
764 CURSEG_HOT_NODE, /* direct node blocks of directory files */
765 CURSEG_WARM_NODE, /* direct node blocks of normal files */
766 CURSEG_COLD_NODE, /* indirect node blocks */
771 struct completion wait;
772 struct llist_node llnode;
776 struct flush_cmd_control {
777 struct task_struct *f2fs_issue_flush; /* flush thread */
778 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
779 atomic_t issued_flush; /* # of issued flushes */
780 atomic_t issing_flush; /* # of issing flushes */
781 struct llist_head issue_list; /* list for command issue */
782 struct llist_node *dispatch_list; /* list for command dispatch */
785 struct f2fs_sm_info {
786 struct sit_info *sit_info; /* whole segment information */
787 struct free_segmap_info *free_info; /* free segment information */
788 struct dirty_seglist_info *dirty_info; /* dirty segment information */
789 struct curseg_info *curseg_array; /* active segment information */
791 block_t seg0_blkaddr; /* block address of 0'th segment */
792 block_t main_blkaddr; /* start block address of main area */
793 block_t ssa_blkaddr; /* start block address of SSA area */
795 unsigned int segment_count; /* total # of segments */
796 unsigned int main_segments; /* # of segments in main area */
797 unsigned int reserved_segments; /* # of reserved segments */
798 unsigned int ovp_segments; /* # of overprovision segments */
800 /* a threshold to reclaim prefree segments */
801 unsigned int rec_prefree_segments;
803 /* for batched trimming */
804 unsigned int trim_sections; /* # of sections to trim */
806 struct list_head sit_entry_set; /* sit entry set list */
808 unsigned int ipu_policy; /* in-place-update policy */
809 unsigned int min_ipu_util; /* in-place-update threshold */
810 unsigned int min_fsync_blocks; /* threshold for fsync */
811 unsigned int min_hot_blocks; /* threshold for hot block allocation */
813 /* for flush command control */
814 struct flush_cmd_control *fcc_info;
816 /* for discard command control */
817 struct discard_cmd_control *dcc_info;
824 * COUNT_TYPE for monitoring
826 * f2fs monitors the number of several block types such as on-writeback,
827 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
829 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
843 * The below are the page types of bios used in submit_bio().
844 * The available types are:
845 * DATA User data pages. It operates as async mode.
846 * NODE Node pages. It operates as async mode.
847 * META FS metadata pages such as SIT, NAT, CP.
848 * NR_PAGE_TYPE The number of page types.
849 * META_FLUSH Make sure the previous pages are written
850 * with waiting the bio's completion
851 * ... Only can be used with META.
853 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
860 INMEM, /* the below types are used by tracepoints only. */
869 HOT = 0, /* must be zero for meta bio */
875 enum need_lock_type {
882 APP_DIRECT_IO, /* app direct IOs */
883 APP_BUFFERED_IO, /* app buffered IOs */
884 APP_WRITE_IO, /* app write IOs */
885 APP_MAPPED_IO, /* app mapped IOs */
886 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
887 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
888 FS_META_IO, /* meta IOs from kworker/reclaimer */
889 FS_GC_DATA_IO, /* data IOs from forground gc */
890 FS_GC_NODE_IO, /* node IOs from forground gc */
891 FS_CP_DATA_IO, /* data IOs from checkpoint */
892 FS_CP_NODE_IO, /* node IOs from checkpoint */
893 FS_CP_META_IO, /* meta IOs from checkpoint */
894 FS_DISCARD, /* discard */
898 struct f2fs_io_info {
899 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
900 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
901 enum temp_type temp; /* contains HOT/WARM/COLD */
902 int op; /* contains REQ_OP_ */
903 int op_flags; /* req_flag_bits */
904 block_t new_blkaddr; /* new block address to be written */
905 block_t old_blkaddr; /* old block address before Cow */
906 struct page *page; /* page to be written */
907 struct page *encrypted_page; /* encrypted page */
908 struct list_head list; /* serialize IOs */
909 bool submitted; /* indicate IO submission */
910 int need_lock; /* indicate we need to lock cp_rwsem */
911 bool in_list; /* indicate fio is in io_list */
912 enum iostat_type io_type; /* io type */
915 #define is_read_io(rw) ((rw) == READ)
916 struct f2fs_bio_info {
917 struct f2fs_sb_info *sbi; /* f2fs superblock */
918 struct bio *bio; /* bios to merge */
919 sector_t last_block_in_bio; /* last block number */
920 struct f2fs_io_info fio; /* store buffered io info. */
921 struct rw_semaphore io_rwsem; /* blocking op for bio */
922 spinlock_t io_lock; /* serialize DATA/NODE IOs */
923 struct list_head io_list; /* track fios */
926 #define FDEV(i) (sbi->devs[i])
927 #define RDEV(i) (raw_super->devs[i])
928 struct f2fs_dev_info {
929 struct block_device *bdev;
930 char path[MAX_PATH_LEN];
931 unsigned int total_segments;
934 #ifdef CONFIG_BLK_DEV_ZONED
935 unsigned int nr_blkz; /* Total number of zones */
936 u8 *blkz_type; /* Array of zones type */
941 DIR_INODE, /* for dirty dir inode */
942 FILE_INODE, /* for dirty regular/symlink inode */
943 DIRTY_META, /* for all dirtied inode metadata */
947 /* for inner inode cache management */
948 struct inode_management {
949 struct radix_tree_root ino_root; /* ino entry array */
950 spinlock_t ino_lock; /* for ino entry lock */
951 struct list_head ino_list; /* inode list head */
952 unsigned long ino_num; /* number of entries */
955 /* For s_flag in struct f2fs_sb_info */
957 SBI_IS_DIRTY, /* dirty flag for checkpoint */
958 SBI_IS_CLOSE, /* specify unmounting */
959 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
960 SBI_POR_DOING, /* recovery is doing or not */
961 SBI_NEED_SB_WRITE, /* need to recover superblock */
962 SBI_NEED_CP, /* need to checkpoint */
971 struct f2fs_sb_info {
972 struct super_block *sb; /* pointer to VFS super block */
973 struct proc_dir_entry *s_proc; /* proc entry */
974 struct f2fs_super_block *raw_super; /* raw super block pointer */
975 int valid_super_block; /* valid super block no */
976 unsigned long s_flag; /* flags for sbi */
978 #ifdef CONFIG_BLK_DEV_ZONED
979 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
980 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
983 /* for node-related operations */
984 struct f2fs_nm_info *nm_info; /* node manager */
985 struct inode *node_inode; /* cache node blocks */
987 /* for segment-related operations */
988 struct f2fs_sm_info *sm_info; /* segment manager */
990 /* for bio operations */
991 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
992 struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
993 /* bio ordering for NODE/DATA */
994 int write_io_size_bits; /* Write IO size bits */
995 mempool_t *write_io_dummy; /* Dummy pages */
998 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
999 int cur_cp_pack; /* remain current cp pack */
1000 spinlock_t cp_lock; /* for flag in ckpt */
1001 struct inode *meta_inode; /* cache meta blocks */
1002 struct mutex cp_mutex; /* checkpoint procedure lock */
1003 struct rw_semaphore cp_rwsem; /* blocking FS operations */
1004 struct rw_semaphore node_write; /* locking node writes */
1005 struct rw_semaphore node_change; /* locking node change */
1006 wait_queue_head_t cp_wait;
1007 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
1008 long interval_time[MAX_TIME]; /* to store thresholds */
1010 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
1012 /* for orphan inode, use 0'th array */
1013 unsigned int max_orphans; /* max orphan inodes */
1015 /* for inode management */
1016 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1017 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1019 /* for extent tree cache */
1020 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1021 struct mutex extent_tree_lock; /* locking extent radix tree */
1022 struct list_head extent_list; /* lru list for shrinker */
1023 spinlock_t extent_lock; /* locking extent lru list */
1024 atomic_t total_ext_tree; /* extent tree count */
1025 struct list_head zombie_list; /* extent zombie tree list */
1026 atomic_t total_zombie_tree; /* extent zombie tree count */
1027 atomic_t total_ext_node; /* extent info count */
1029 /* basic filesystem units */
1030 unsigned int log_sectors_per_block; /* log2 sectors per block */
1031 unsigned int log_blocksize; /* log2 block size */
1032 unsigned int blocksize; /* block size */
1033 unsigned int root_ino_num; /* root inode number*/
1034 unsigned int node_ino_num; /* node inode number*/
1035 unsigned int meta_ino_num; /* meta inode number*/
1036 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1037 unsigned int blocks_per_seg; /* blocks per segment */
1038 unsigned int segs_per_sec; /* segments per section */
1039 unsigned int secs_per_zone; /* sections per zone */
1040 unsigned int total_sections; /* total section count */
1041 unsigned int total_node_count; /* total node block count */
1042 unsigned int total_valid_node_count; /* valid node block count */
1043 loff_t max_file_blocks; /* max block index of file */
1044 int active_logs; /* # of active logs */
1045 int dir_level; /* directory level */
1047 block_t user_block_count; /* # of user blocks */
1048 block_t total_valid_block_count; /* # of valid blocks */
1049 block_t discard_blks; /* discard command candidats */
1050 block_t last_valid_block_count; /* for recovery */
1051 block_t reserved_blocks; /* configurable reserved blocks */
1053 u32 s_next_generation; /* for NFS support */
1055 /* # of pages, see count_type */
1056 atomic_t nr_pages[NR_COUNT_TYPE];
1057 /* # of allocated blocks */
1058 struct percpu_counter alloc_valid_block_count;
1060 /* writeback control */
1061 atomic_t wb_sync_req; /* count # of WB_SYNC threads */
1063 /* valid inode count */
1064 struct percpu_counter total_valid_inode_count;
1066 struct f2fs_mount_info mount_opt; /* mount options */
1068 /* for cleaning operations */
1069 struct mutex gc_mutex; /* mutex for GC */
1070 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1071 unsigned int cur_victim_sec; /* current victim section num */
1073 /* threshold for converting bg victims for fg */
1076 /* maximum # of trials to find a victim segment for SSR and GC */
1077 unsigned int max_victim_search;
1080 * for stat information.
1081 * one is for the LFS mode, and the other is for the SSR mode.
1083 #ifdef CONFIG_F2FS_STAT_FS
1084 struct f2fs_stat_info *stat_info; /* FS status information */
1085 unsigned int segment_count[2]; /* # of allocated segments */
1086 unsigned int block_count[2]; /* # of allocated blocks */
1087 atomic_t inplace_count; /* # of inplace update */
1088 atomic64_t total_hit_ext; /* # of lookup extent cache */
1089 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1090 atomic64_t read_hit_largest; /* # of hit largest extent node */
1091 atomic64_t read_hit_cached; /* # of hit cached extent node */
1092 atomic_t inline_xattr; /* # of inline_xattr inodes */
1093 atomic_t inline_inode; /* # of inline_data inodes */
1094 atomic_t inline_dir; /* # of inline_dentry inodes */
1095 atomic_t aw_cnt; /* # of atomic writes */
1096 atomic_t vw_cnt; /* # of volatile writes */
1097 atomic_t max_aw_cnt; /* max # of atomic writes */
1098 atomic_t max_vw_cnt; /* max # of volatile writes */
1099 int bg_gc; /* background gc calls */
1100 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1102 spinlock_t stat_lock; /* lock for stat operations */
1104 /* For app/fs IO statistics */
1105 spinlock_t iostat_lock;
1106 unsigned long long write_iostat[NR_IO_TYPE];
1109 /* For sysfs suppport */
1110 struct kobject s_kobj;
1111 struct completion s_kobj_unregister;
1113 /* For shrinker support */
1114 struct list_head s_list;
1115 int s_ndevs; /* number of devices */
1116 struct f2fs_dev_info *devs; /* for device list */
1117 struct mutex umount_mutex;
1118 unsigned int shrinker_run_no;
1120 /* For write statistics */
1121 u64 sectors_written_start;
1124 /* Reference to checksum algorithm driver via cryptoapi */
1125 struct crypto_shash *s_chksum_driver;
1127 /* Precomputed FS UUID checksum for seeding other checksums */
1128 __u32 s_chksum_seed;
1130 /* For fault injection */
1131 #ifdef CONFIG_F2FS_FAULT_INJECTION
1132 struct f2fs_fault_info fault_info;
1136 /* Names of quota files with journalled quota */
1137 char *s_qf_names[MAXQUOTAS];
1138 int s_jquota_fmt; /* Format of quota to use */
1142 #ifdef CONFIG_F2FS_FAULT_INJECTION
1143 #define f2fs_show_injection_info(type) \
1144 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1145 KERN_INFO, fault_name[type], \
1146 __func__, __builtin_return_address(0))
1147 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1149 struct f2fs_fault_info *ffi = &sbi->fault_info;
1151 if (!ffi->inject_rate)
1154 if (!IS_FAULT_SET(ffi, type))
1157 atomic_inc(&ffi->inject_ops);
1158 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1159 atomic_set(&ffi->inject_ops, 0);
1166 /* For write statistics. Suppose sector size is 512 bytes,
1167 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1169 #define BD_PART_WRITTEN(s) \
1170 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1171 (s)->sectors_written_start) >> 1)
1173 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1175 sbi->last_time[type] = jiffies;
1178 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1180 struct timespec ts = {sbi->interval_time[type], 0};
1181 unsigned long interval = timespec_to_jiffies(&ts);
1183 return time_after(jiffies, sbi->last_time[type] + interval);
1186 static inline bool is_idle(struct f2fs_sb_info *sbi)
1188 struct block_device *bdev = sbi->sb->s_bdev;
1189 struct request_queue *q = bdev_get_queue(bdev);
1190 struct request_list *rl = &q->root_rl;
1192 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1195 return f2fs_time_over(sbi, REQ_TIME);
1201 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1202 unsigned int length)
1204 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
1205 u32 *ctx = (u32 *)shash_desc_ctx(shash);
1209 shash->tfm = sbi->s_chksum_driver;
1211 *ctx = F2FS_SUPER_MAGIC;
1213 err = crypto_shash_update(shash, address, length);
1221 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1222 void *buf, size_t buf_size)
1224 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1227 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1228 const void *address, unsigned int length)
1231 struct shash_desc shash;
1236 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1238 desc.shash.tfm = sbi->s_chksum_driver;
1239 desc.shash.flags = 0;
1240 *(u32 *)desc.ctx = crc;
1242 err = crypto_shash_update(&desc.shash, address, length);
1245 return *(u32 *)desc.ctx;
1248 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1250 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1253 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1255 return sb->s_fs_info;
1258 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1260 return F2FS_SB(inode->i_sb);
1263 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1265 return F2FS_I_SB(mapping->host);
1268 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1270 return F2FS_M_SB(page->mapping);
1273 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1275 return (struct f2fs_super_block *)(sbi->raw_super);
1278 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1280 return (struct f2fs_checkpoint *)(sbi->ckpt);
1283 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1285 return (struct f2fs_node *)page_address(page);
1288 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1290 return &((struct f2fs_node *)page_address(page))->i;
1293 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1295 return (struct f2fs_nm_info *)(sbi->nm_info);
1298 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1300 return (struct f2fs_sm_info *)(sbi->sm_info);
1303 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1305 return (struct sit_info *)(SM_I(sbi)->sit_info);
1308 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1310 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1313 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1315 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1318 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1320 return sbi->meta_inode->i_mapping;
1323 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1325 return sbi->node_inode->i_mapping;
1328 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1330 return test_bit(type, &sbi->s_flag);
1333 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1335 set_bit(type, &sbi->s_flag);
1338 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1340 clear_bit(type, &sbi->s_flag);
1343 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1345 return le64_to_cpu(cp->checkpoint_ver);
1348 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1350 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1351 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1354 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1356 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1358 return ckpt_flags & f;
1361 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1363 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1366 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1368 unsigned int ckpt_flags;
1370 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1372 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1375 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1377 unsigned long flags;
1379 spin_lock_irqsave(&sbi->cp_lock, flags);
1380 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1381 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1384 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1386 unsigned int ckpt_flags;
1388 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1390 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1393 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1395 unsigned long flags;
1397 spin_lock_irqsave(&sbi->cp_lock, flags);
1398 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1399 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1402 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1404 unsigned long flags;
1406 set_sbi_flag(sbi, SBI_NEED_FSCK);
1409 spin_lock_irqsave(&sbi->cp_lock, flags);
1410 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1411 kfree(NM_I(sbi)->nat_bits);
1412 NM_I(sbi)->nat_bits = NULL;
1414 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1417 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1418 struct cp_control *cpc)
1420 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1422 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1425 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1427 down_read(&sbi->cp_rwsem);
1430 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1432 return down_read_trylock(&sbi->cp_rwsem);
1435 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1437 up_read(&sbi->cp_rwsem);
1440 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1442 down_write(&sbi->cp_rwsem);
1445 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1447 up_write(&sbi->cp_rwsem);
1450 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1452 int reason = CP_SYNC;
1454 if (test_opt(sbi, FASTBOOT))
1455 reason = CP_FASTBOOT;
1456 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1461 static inline bool __remain_node_summaries(int reason)
1463 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1466 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1468 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1469 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1473 * Check whether the given nid is within node id range.
1475 static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
1477 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1479 if (unlikely(nid >= NM_I(sbi)->max_nid))
1485 * Check whether the inode has blocks or not
1487 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1489 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1491 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1494 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1496 return ofs == XATTR_NODE_OFFSET;
1499 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1500 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1501 struct inode *inode, blkcnt_t *count)
1503 blkcnt_t diff = 0, release = 0;
1504 block_t avail_user_block_count;
1507 ret = dquot_reserve_block(inode, *count);
1511 #ifdef CONFIG_F2FS_FAULT_INJECTION
1512 if (time_to_inject(sbi, FAULT_BLOCK)) {
1513 f2fs_show_injection_info(FAULT_BLOCK);
1519 * let's increase this in prior to actual block count change in order
1520 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1522 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1524 spin_lock(&sbi->stat_lock);
1525 sbi->total_valid_block_count += (block_t)(*count);
1526 avail_user_block_count = sbi->user_block_count - sbi->reserved_blocks;
1527 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1528 diff = sbi->total_valid_block_count - avail_user_block_count;
1531 sbi->total_valid_block_count = avail_user_block_count;
1533 spin_unlock(&sbi->stat_lock);
1534 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
1538 spin_unlock(&sbi->stat_lock);
1541 dquot_release_reservation_block(inode, release);
1542 f2fs_i_blocks_write(inode, *count, true, true);
1546 dquot_release_reservation_block(inode, release);
1550 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1551 struct inode *inode,
1554 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1556 spin_lock(&sbi->stat_lock);
1557 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1558 f2fs_bug_on(sbi, inode->i_blocks < sectors);
1559 sbi->total_valid_block_count -= (block_t)count;
1560 spin_unlock(&sbi->stat_lock);
1561 f2fs_i_blocks_write(inode, count, false, true);
1564 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1566 atomic_inc(&sbi->nr_pages[count_type]);
1568 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1569 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1572 set_sbi_flag(sbi, SBI_IS_DIRTY);
1575 static inline void inode_inc_dirty_pages(struct inode *inode)
1577 atomic_inc(&F2FS_I(inode)->dirty_pages);
1578 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1579 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1582 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1584 atomic_dec(&sbi->nr_pages[count_type]);
1587 static inline void inode_dec_dirty_pages(struct inode *inode)
1589 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1590 !S_ISLNK(inode->i_mode))
1593 atomic_dec(&F2FS_I(inode)->dirty_pages);
1594 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1595 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1598 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1600 return atomic_read(&sbi->nr_pages[count_type]);
1603 static inline int get_dirty_pages(struct inode *inode)
1605 return atomic_read(&F2FS_I(inode)->dirty_pages);
1608 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1610 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1611 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1612 sbi->log_blocks_per_seg;
1614 return segs / sbi->segs_per_sec;
1617 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1619 return sbi->total_valid_block_count;
1622 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1624 return sbi->discard_blks;
1627 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1629 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1631 /* return NAT or SIT bitmap */
1632 if (flag == NAT_BITMAP)
1633 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1634 else if (flag == SIT_BITMAP)
1635 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1640 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1642 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1645 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1647 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1650 if (__cp_payload(sbi) > 0) {
1651 if (flag == NAT_BITMAP)
1652 return &ckpt->sit_nat_version_bitmap;
1654 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1656 offset = (flag == NAT_BITMAP) ?
1657 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1658 return &ckpt->sit_nat_version_bitmap + offset;
1662 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1664 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1666 if (sbi->cur_cp_pack == 2)
1667 start_addr += sbi->blocks_per_seg;
1671 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1673 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1675 if (sbi->cur_cp_pack == 1)
1676 start_addr += sbi->blocks_per_seg;
1680 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1682 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1685 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1687 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1690 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
1691 struct inode *inode, bool is_inode)
1693 block_t valid_block_count;
1694 unsigned int valid_node_count;
1695 bool quota = inode && !is_inode;
1698 int ret = dquot_reserve_block(inode, 1);
1703 spin_lock(&sbi->stat_lock);
1705 valid_block_count = sbi->total_valid_block_count + 1;
1706 if (unlikely(valid_block_count + sbi->reserved_blocks >
1707 sbi->user_block_count)) {
1708 spin_unlock(&sbi->stat_lock);
1712 valid_node_count = sbi->total_valid_node_count + 1;
1713 if (unlikely(valid_node_count > sbi->total_node_count)) {
1714 spin_unlock(&sbi->stat_lock);
1718 sbi->total_valid_node_count++;
1719 sbi->total_valid_block_count++;
1720 spin_unlock(&sbi->stat_lock);
1724 f2fs_mark_inode_dirty_sync(inode, true);
1726 f2fs_i_blocks_write(inode, 1, true, true);
1729 percpu_counter_inc(&sbi->alloc_valid_block_count);
1734 dquot_release_reservation_block(inode, 1);
1738 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1739 struct inode *inode, bool is_inode)
1741 spin_lock(&sbi->stat_lock);
1743 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1744 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1745 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
1747 sbi->total_valid_node_count--;
1748 sbi->total_valid_block_count--;
1750 spin_unlock(&sbi->stat_lock);
1753 f2fs_i_blocks_write(inode, 1, false, true);
1756 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1758 return sbi->total_valid_node_count;
1761 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1763 percpu_counter_inc(&sbi->total_valid_inode_count);
1766 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1768 percpu_counter_dec(&sbi->total_valid_inode_count);
1771 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1773 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1776 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1777 pgoff_t index, bool for_write)
1779 #ifdef CONFIG_F2FS_FAULT_INJECTION
1780 struct page *page = find_lock_page(mapping, index);
1785 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1786 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
1791 return grab_cache_page(mapping, index);
1792 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1795 static inline void f2fs_copy_page(struct page *src, struct page *dst)
1797 char *src_kaddr = kmap(src);
1798 char *dst_kaddr = kmap(dst);
1800 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1805 static inline void f2fs_put_page(struct page *page, int unlock)
1811 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
1817 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1820 f2fs_put_page(dn->node_page, 1);
1821 if (dn->inode_page && dn->node_page != dn->inode_page)
1822 f2fs_put_page(dn->inode_page, 0);
1823 dn->node_page = NULL;
1824 dn->inode_page = NULL;
1827 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
1830 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
1833 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1838 entry = kmem_cache_alloc(cachep, flags);
1840 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
1844 static inline struct bio *f2fs_bio_alloc(int npages)
1848 /* No failure on bio allocation */
1849 bio = bio_alloc(GFP_NOIO, npages);
1851 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
1855 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1856 unsigned long index, void *item)
1858 while (radix_tree_insert(root, index, item))
1862 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1864 static inline bool IS_INODE(struct page *page)
1866 struct f2fs_node *p = F2FS_NODE(page);
1868 return RAW_IS_INODE(p);
1871 static inline int offset_in_addr(struct f2fs_inode *i)
1873 return (i->i_inline & F2FS_EXTRA_ATTR) ?
1874 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
1877 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1879 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1882 static inline int f2fs_has_extra_attr(struct inode *inode);
1883 static inline block_t datablock_addr(struct inode *inode,
1884 struct page *node_page, unsigned int offset)
1886 struct f2fs_node *raw_node;
1889 bool is_inode = IS_INODE(node_page);
1891 raw_node = F2FS_NODE(node_page);
1893 /* from GC path only */
1896 base = offset_in_addr(&raw_node->i);
1897 } else if (f2fs_has_extra_attr(inode) && is_inode) {
1898 base = get_extra_isize(inode);
1901 addr_array = blkaddr_in_node(raw_node);
1902 return le32_to_cpu(addr_array[base + offset]);
1905 static inline int f2fs_test_bit(unsigned int nr, char *addr)
1910 mask = 1 << (7 - (nr & 0x07));
1911 return mask & *addr;
1914 static inline void f2fs_set_bit(unsigned int nr, char *addr)
1919 mask = 1 << (7 - (nr & 0x07));
1923 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1928 mask = 1 << (7 - (nr & 0x07));
1932 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
1938 mask = 1 << (7 - (nr & 0x07));
1944 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
1950 mask = 1 << (7 - (nr & 0x07));
1956 static inline void f2fs_change_bit(unsigned int nr, char *addr)
1961 mask = 1 << (7 - (nr & 0x07));
1965 #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
1966 #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
1967 #define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
1969 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
1973 else if (S_ISREG(mode))
1974 return flags & F2FS_REG_FLMASK;
1976 return flags & F2FS_OTHER_FLMASK;
1979 /* used for f2fs_inode_info->flags */
1981 FI_NEW_INODE, /* indicate newly allocated inode */
1982 FI_DIRTY_INODE, /* indicate inode is dirty or not */
1983 FI_AUTO_RECOVER, /* indicate inode is recoverable */
1984 FI_DIRTY_DIR, /* indicate directory has dirty pages */
1985 FI_INC_LINK, /* need to increment i_nlink */
1986 FI_ACL_MODE, /* indicate acl mode */
1987 FI_NO_ALLOC, /* should not allocate any blocks */
1988 FI_FREE_NID, /* free allocated nide */
1989 FI_NO_EXTENT, /* not to use the extent cache */
1990 FI_INLINE_XATTR, /* used for inline xattr */
1991 FI_INLINE_DATA, /* used for inline data*/
1992 FI_INLINE_DENTRY, /* used for inline dentry */
1993 FI_APPEND_WRITE, /* inode has appended data */
1994 FI_UPDATE_WRITE, /* inode has in-place-update data */
1995 FI_NEED_IPU, /* used for ipu per file */
1996 FI_ATOMIC_FILE, /* indicate atomic file */
1997 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
1998 FI_VOLATILE_FILE, /* indicate volatile file */
1999 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
2000 FI_DROP_CACHE, /* drop dirty page cache */
2001 FI_DATA_EXIST, /* indicate data exists */
2002 FI_INLINE_DOTS, /* indicate inline dot dentries */
2003 FI_DO_DEFRAG, /* indicate defragment is running */
2004 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
2005 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
2006 FI_HOT_DATA, /* indicate file is hot */
2007 FI_EXTRA_ATTR, /* indicate file has extra attribute */
2008 FI_PROJ_INHERIT, /* indicate file inherits projectid */
2011 static inline void __mark_inode_dirty_flag(struct inode *inode,
2015 case FI_INLINE_XATTR:
2016 case FI_INLINE_DATA:
2017 case FI_INLINE_DENTRY:
2021 case FI_INLINE_DOTS:
2022 f2fs_mark_inode_dirty_sync(inode, true);
2026 static inline void set_inode_flag(struct inode *inode, int flag)
2028 if (!test_bit(flag, &F2FS_I(inode)->flags))
2029 set_bit(flag, &F2FS_I(inode)->flags);
2030 __mark_inode_dirty_flag(inode, flag, true);
2033 static inline int is_inode_flag_set(struct inode *inode, int flag)
2035 return test_bit(flag, &F2FS_I(inode)->flags);
2038 static inline void clear_inode_flag(struct inode *inode, int flag)
2040 if (test_bit(flag, &F2FS_I(inode)->flags))
2041 clear_bit(flag, &F2FS_I(inode)->flags);
2042 __mark_inode_dirty_flag(inode, flag, false);
2045 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2047 F2FS_I(inode)->i_acl_mode = mode;
2048 set_inode_flag(inode, FI_ACL_MODE);
2049 f2fs_mark_inode_dirty_sync(inode, false);
2052 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2058 f2fs_mark_inode_dirty_sync(inode, true);
2061 static inline void f2fs_i_blocks_write(struct inode *inode,
2062 block_t diff, bool add, bool claim)
2064 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2065 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2067 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2070 dquot_claim_block(inode, diff);
2072 dquot_alloc_block_nofail(inode, diff);
2074 dquot_free_block(inode, diff);
2077 f2fs_mark_inode_dirty_sync(inode, true);
2078 if (clean || recover)
2079 set_inode_flag(inode, FI_AUTO_RECOVER);
2082 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2084 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2085 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2087 if (i_size_read(inode) == i_size)
2090 i_size_write(inode, i_size);
2091 f2fs_mark_inode_dirty_sync(inode, true);
2092 if (clean || recover)
2093 set_inode_flag(inode, FI_AUTO_RECOVER);
2096 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2098 F2FS_I(inode)->i_current_depth = depth;
2099 f2fs_mark_inode_dirty_sync(inode, true);
2102 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2104 F2FS_I(inode)->i_xattr_nid = xnid;
2105 f2fs_mark_inode_dirty_sync(inode, true);
2108 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2110 F2FS_I(inode)->i_pino = pino;
2111 f2fs_mark_inode_dirty_sync(inode, true);
2114 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2116 struct f2fs_inode_info *fi = F2FS_I(inode);
2118 if (ri->i_inline & F2FS_INLINE_XATTR)
2119 set_bit(FI_INLINE_XATTR, &fi->flags);
2120 if (ri->i_inline & F2FS_INLINE_DATA)
2121 set_bit(FI_INLINE_DATA, &fi->flags);
2122 if (ri->i_inline & F2FS_INLINE_DENTRY)
2123 set_bit(FI_INLINE_DENTRY, &fi->flags);
2124 if (ri->i_inline & F2FS_DATA_EXIST)
2125 set_bit(FI_DATA_EXIST, &fi->flags);
2126 if (ri->i_inline & F2FS_INLINE_DOTS)
2127 set_bit(FI_INLINE_DOTS, &fi->flags);
2128 if (ri->i_inline & F2FS_EXTRA_ATTR)
2129 set_bit(FI_EXTRA_ATTR, &fi->flags);
2132 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2136 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2137 ri->i_inline |= F2FS_INLINE_XATTR;
2138 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2139 ri->i_inline |= F2FS_INLINE_DATA;
2140 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2141 ri->i_inline |= F2FS_INLINE_DENTRY;
2142 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2143 ri->i_inline |= F2FS_DATA_EXIST;
2144 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2145 ri->i_inline |= F2FS_INLINE_DOTS;
2146 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2147 ri->i_inline |= F2FS_EXTRA_ATTR;
2150 static inline int f2fs_has_extra_attr(struct inode *inode)
2152 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2155 static inline int f2fs_has_inline_xattr(struct inode *inode)
2157 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2160 static inline unsigned int addrs_per_inode(struct inode *inode)
2162 if (f2fs_has_inline_xattr(inode))
2163 return CUR_ADDRS_PER_INODE(inode) - F2FS_INLINE_XATTR_ADDRS;
2164 return CUR_ADDRS_PER_INODE(inode);
2167 static inline void *inline_xattr_addr(struct page *page)
2169 struct f2fs_inode *ri = F2FS_INODE(page);
2171 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2172 F2FS_INLINE_XATTR_ADDRS]);
2175 static inline int inline_xattr_size(struct inode *inode)
2177 if (f2fs_has_inline_xattr(inode))
2178 return F2FS_INLINE_XATTR_ADDRS << 2;
2183 static inline int f2fs_has_inline_data(struct inode *inode)
2185 return is_inode_flag_set(inode, FI_INLINE_DATA);
2188 static inline int f2fs_exist_data(struct inode *inode)
2190 return is_inode_flag_set(inode, FI_DATA_EXIST);
2193 static inline int f2fs_has_inline_dots(struct inode *inode)
2195 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2198 static inline bool f2fs_is_atomic_file(struct inode *inode)
2200 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2203 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2205 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2208 static inline bool f2fs_is_volatile_file(struct inode *inode)
2210 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2213 static inline bool f2fs_is_first_block_written(struct inode *inode)
2215 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2218 static inline bool f2fs_is_drop_cache(struct inode *inode)
2220 return is_inode_flag_set(inode, FI_DROP_CACHE);
2223 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2225 struct f2fs_inode *ri = F2FS_INODE(page);
2226 int extra_size = get_extra_isize(inode);
2228 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2231 static inline int f2fs_has_inline_dentry(struct inode *inode)
2233 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2236 static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
2238 if (!f2fs_has_inline_dentry(dir))
2242 static inline int is_file(struct inode *inode, int type)
2244 return F2FS_I(inode)->i_advise & type;
2247 static inline void set_file(struct inode *inode, int type)
2249 F2FS_I(inode)->i_advise |= type;
2250 f2fs_mark_inode_dirty_sync(inode, true);
2253 static inline void clear_file(struct inode *inode, int type)
2255 F2FS_I(inode)->i_advise &= ~type;
2256 f2fs_mark_inode_dirty_sync(inode, true);
2259 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2262 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2265 spin_lock(&sbi->inode_lock[DIRTY_META]);
2266 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2267 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2270 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2271 file_keep_isize(inode) ||
2272 i_size_read(inode) & PAGE_MASK)
2274 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
2277 static inline int f2fs_readonly(struct super_block *sb)
2279 return sb->s_flags & MS_RDONLY;
2282 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2284 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2287 static inline bool is_dot_dotdot(const struct qstr *str)
2289 if (str->len == 1 && str->name[0] == '.')
2292 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2298 static inline bool f2fs_may_extent_tree(struct inode *inode)
2300 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
2301 is_inode_flag_set(inode, FI_NO_EXTENT))
2304 return S_ISREG(inode->i_mode);
2307 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2308 size_t size, gfp_t flags)
2310 #ifdef CONFIG_F2FS_FAULT_INJECTION
2311 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2312 f2fs_show_injection_info(FAULT_KMALLOC);
2316 return kmalloc(size, flags);
2319 static inline int get_extra_isize(struct inode *inode)
2321 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2324 #define get_inode_mode(i) \
2325 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2326 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2328 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2329 (offsetof(struct f2fs_inode, i_extra_end) - \
2330 offsetof(struct f2fs_inode, i_extra_isize)) \
2332 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2333 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2334 ((offsetof(typeof(*f2fs_inode), field) + \
2335 sizeof((f2fs_inode)->field)) \
2336 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2338 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2342 spin_lock(&sbi->iostat_lock);
2343 for (i = 0; i < NR_IO_TYPE; i++)
2344 sbi->write_iostat[i] = 0;
2345 spin_unlock(&sbi->iostat_lock);
2348 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2349 enum iostat_type type, unsigned long long io_bytes)
2351 if (!sbi->iostat_enable)
2353 spin_lock(&sbi->iostat_lock);
2354 sbi->write_iostat[type] += io_bytes;
2356 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2357 sbi->write_iostat[APP_BUFFERED_IO] =
2358 sbi->write_iostat[APP_WRITE_IO] -
2359 sbi->write_iostat[APP_DIRECT_IO];
2360 spin_unlock(&sbi->iostat_lock);
2366 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2367 void truncate_data_blocks(struct dnode_of_data *dn);
2368 int truncate_blocks(struct inode *inode, u64 from, bool lock);
2369 int f2fs_truncate(struct inode *inode);
2370 int f2fs_getattr(const struct path *path, struct kstat *stat,
2371 u32 request_mask, unsigned int flags);
2372 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2373 int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2374 int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2375 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2376 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2381 void f2fs_set_inode_flags(struct inode *inode);
2382 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2383 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2384 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2385 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2386 int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2387 int update_inode(struct inode *inode, struct page *node_page);
2388 int update_inode_page(struct inode *inode);
2389 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2390 void f2fs_evict_inode(struct inode *inode);
2391 void handle_failed_inode(struct inode *inode);
2396 struct dentry *f2fs_get_parent(struct dentry *child);
2401 void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2402 unsigned char get_de_type(struct f2fs_dir_entry *de);
2403 struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2404 f2fs_hash_t namehash, int *max_slots,
2405 struct f2fs_dentry_ptr *d);
2406 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2407 unsigned int start_pos, struct fscrypt_str *fstr);
2408 void do_make_empty_dir(struct inode *inode, struct inode *parent,
2409 struct f2fs_dentry_ptr *d);
2410 struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2411 const struct qstr *new_name,
2412 const struct qstr *orig_name, struct page *dpage);
2413 void update_parent_metadata(struct inode *dir, struct inode *inode,
2414 unsigned int current_depth);
2415 int room_for_filename(const void *bitmap, int slots, int max_slots);
2416 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2417 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2418 struct fscrypt_name *fname, struct page **res_page);
2419 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2420 const struct qstr *child, struct page **res_page);
2421 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2422 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2423 struct page **page);
2424 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2425 struct page *page, struct inode *inode);
2426 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2427 const struct qstr *name, f2fs_hash_t name_hash,
2428 unsigned int bit_pos);
2429 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2430 const struct qstr *orig_name,
2431 struct inode *inode, nid_t ino, umode_t mode);
2432 int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2433 struct inode *inode, nid_t ino, umode_t mode);
2434 int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2435 struct inode *inode, nid_t ino, umode_t mode);
2436 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2437 struct inode *dir, struct inode *inode);
2438 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2439 bool f2fs_empty_dir(struct inode *dir);
2441 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2443 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2444 inode, inode->i_ino, inode->i_mode);
2450 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2451 void f2fs_inode_synced(struct inode *inode);
2452 void f2fs_enable_quota_files(struct f2fs_sb_info *sbi);
2453 void f2fs_quota_off_umount(struct super_block *sb);
2454 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2455 int f2fs_sync_fs(struct super_block *sb, int sync);
2456 extern __printf(3, 4)
2457 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2458 int sanity_check_ckpt(struct f2fs_sb_info *sbi);
2463 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2464 struct fscrypt_name *fname);
2469 struct dnode_of_data;
2472 bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2473 int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2474 bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2475 bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2476 void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2477 pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2478 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2479 int truncate_inode_blocks(struct inode *inode, pgoff_t from);
2480 int truncate_xattr_node(struct inode *inode, struct page *page);
2481 int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2482 int remove_inode_page(struct inode *inode);
2483 struct page *new_inode_page(struct inode *inode);
2484 struct page *new_node_page(struct dnode_of_data *dn, unsigned int ofs);
2485 void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2486 struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2487 struct page *get_node_page_ra(struct page *parent, int start);
2488 void move_node_page(struct page *node_page, int gc_type);
2489 int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2490 struct writeback_control *wbc, bool atomic);
2491 int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc,
2492 bool do_balance, enum iostat_type io_type);
2493 void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2494 bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2495 void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2496 void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2497 int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2498 void recover_inline_xattr(struct inode *inode, struct page *page);
2499 int recover_xattr_data(struct inode *inode, struct page *page,
2501 int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2502 int restore_node_summary(struct f2fs_sb_info *sbi,
2503 unsigned int segno, struct f2fs_summary_block *sum);
2504 void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2505 int build_node_manager(struct f2fs_sb_info *sbi);
2506 void destroy_node_manager(struct f2fs_sb_info *sbi);
2507 int __init create_node_manager_caches(void);
2508 void destroy_node_manager_caches(void);
2513 void register_inmem_page(struct inode *inode, struct page *page);
2514 void drop_inmem_pages(struct inode *inode);
2515 void drop_inmem_page(struct inode *inode, struct page *page);
2516 int commit_inmem_pages(struct inode *inode);
2517 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2518 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2519 int f2fs_issue_flush(struct f2fs_sb_info *sbi);
2520 int create_flush_cmd_control(struct f2fs_sb_info *sbi);
2521 void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2522 void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2523 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2524 void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
2525 void stop_discard_thread(struct f2fs_sb_info *sbi);
2526 void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
2527 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2528 void release_discard_addrs(struct f2fs_sb_info *sbi);
2529 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2530 void allocate_new_segments(struct f2fs_sb_info *sbi);
2531 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2532 bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2533 struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2534 void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
2535 void write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
2536 enum iostat_type io_type);
2537 void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2538 void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
2539 int rewrite_data_page(struct f2fs_io_info *fio);
2540 void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2541 block_t old_blkaddr, block_t new_blkaddr,
2542 bool recover_curseg, bool recover_newaddr);
2543 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2544 block_t old_addr, block_t new_addr,
2545 unsigned char version, bool recover_curseg,
2546 bool recover_newaddr);
2547 void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2548 block_t old_blkaddr, block_t *new_blkaddr,
2549 struct f2fs_summary *sum, int type,
2550 struct f2fs_io_info *fio, bool add_list);
2551 void f2fs_wait_on_page_writeback(struct page *page,
2552 enum page_type type, bool ordered);
2553 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi,
2555 void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2556 void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2557 int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2558 unsigned int val, int alloc);
2559 void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2560 int build_segment_manager(struct f2fs_sb_info *sbi);
2561 void destroy_segment_manager(struct f2fs_sb_info *sbi);
2562 int __init create_segment_manager_caches(void);
2563 void destroy_segment_manager_caches(void);
2568 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2569 struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2570 struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2571 struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2572 bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2573 int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2574 int type, bool sync);
2575 void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2576 long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2577 long nr_to_write, enum iostat_type io_type);
2578 void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2579 void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2580 void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2581 bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2582 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2583 int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2584 void release_orphan_inode(struct f2fs_sb_info *sbi);
2585 void add_orphan_inode(struct inode *inode);
2586 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2587 int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2588 int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2589 void update_dirty_page(struct inode *inode, struct page *page);
2590 void remove_dirty_inode(struct inode *inode);
2591 int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2592 int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2593 void init_ino_entry_info(struct f2fs_sb_info *sbi);
2594 int __init create_checkpoint_caches(void);
2595 void destroy_checkpoint_caches(void);
2600 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
2601 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
2602 struct inode *inode, nid_t ino, pgoff_t idx,
2603 enum page_type type);
2604 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
2605 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2606 int f2fs_submit_page_write(struct f2fs_io_info *fio);
2607 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2608 block_t blk_addr, struct bio *bio);
2609 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2610 void set_data_blkaddr(struct dnode_of_data *dn);
2611 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2612 int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2613 int reserve_new_block(struct dnode_of_data *dn);
2614 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2615 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2616 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2617 struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2618 int op_flags, bool for_write);
2619 struct page *find_data_page(struct inode *inode, pgoff_t index);
2620 struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2622 struct page *get_new_data_page(struct inode *inode,
2623 struct page *ipage, pgoff_t index, bool new_i_size);
2624 int do_write_data_page(struct f2fs_io_info *fio);
2625 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2626 int create, int flag);
2627 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2628 u64 start, u64 len);
2629 void f2fs_set_page_dirty_nobuffers(struct page *page);
2630 int __f2fs_write_data_pages(struct address_space *mapping,
2631 struct writeback_control *wbc,
2632 enum iostat_type io_type);
2633 void f2fs_invalidate_page(struct page *page, unsigned int offset,
2634 unsigned int length);
2635 int f2fs_release_page(struct page *page, gfp_t wait);
2636 #ifdef CONFIG_MIGRATION
2637 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2638 struct page *page, enum migrate_mode mode);
2644 int start_gc_thread(struct f2fs_sb_info *sbi);
2645 void stop_gc_thread(struct f2fs_sb_info *sbi);
2646 block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
2647 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
2648 unsigned int segno);
2649 void build_gc_manager(struct f2fs_sb_info *sbi);
2654 int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2655 bool space_for_roll_forward(struct f2fs_sb_info *sbi);
2660 #ifdef CONFIG_F2FS_STAT_FS
2661 struct f2fs_stat_info {
2662 struct list_head stat_list;
2663 struct f2fs_sb_info *sbi;
2664 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2665 int main_area_segs, main_area_sections, main_area_zones;
2666 unsigned long long hit_largest, hit_cached, hit_rbtree;
2667 unsigned long long hit_total, total_ext;
2668 int ext_tree, zombie_tree, ext_node;
2669 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2671 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
2672 int nats, dirty_nats, sits, dirty_sits;
2673 int free_nids, avail_nids, alloc_nids;
2674 int total_count, utilization;
2675 int bg_gc, nr_wb_cp_data, nr_wb_data;
2676 int nr_flushing, nr_flushed, nr_discarding, nr_discarded;
2678 unsigned int undiscard_blks;
2679 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
2680 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
2681 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
2682 unsigned int bimodal, avg_vblocks;
2683 int util_free, util_valid, util_invalid;
2684 int rsvd_segs, overp_segs;
2685 int dirty_count, node_pages, meta_pages;
2686 int prefree_count, call_count, cp_count, bg_cp_count;
2687 int tot_segs, node_segs, data_segs, free_segs, free_secs;
2688 int bg_node_segs, bg_data_segs;
2689 int tot_blks, data_blks, node_blks;
2690 int bg_data_blks, bg_node_blks;
2691 int curseg[NR_CURSEG_TYPE];
2692 int cursec[NR_CURSEG_TYPE];
2693 int curzone[NR_CURSEG_TYPE];
2695 unsigned int segment_count[2];
2696 unsigned int block_count[2];
2697 unsigned int inplace_count;
2698 unsigned long long base_mem, cache_mem, page_mem;
2701 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2703 return (struct f2fs_stat_info *)sbi->stat_info;
2706 #define stat_inc_cp_count(si) ((si)->cp_count++)
2707 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2708 #define stat_inc_call_count(si) ((si)->call_count++)
2709 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2710 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2711 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2712 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2713 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2714 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2715 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2716 #define stat_inc_inline_xattr(inode) \
2718 if (f2fs_has_inline_xattr(inode)) \
2719 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2721 #define stat_dec_inline_xattr(inode) \
2723 if (f2fs_has_inline_xattr(inode)) \
2724 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2726 #define stat_inc_inline_inode(inode) \
2728 if (f2fs_has_inline_data(inode)) \
2729 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2731 #define stat_dec_inline_inode(inode) \
2733 if (f2fs_has_inline_data(inode)) \
2734 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2736 #define stat_inc_inline_dir(inode) \
2738 if (f2fs_has_inline_dentry(inode)) \
2739 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2741 #define stat_dec_inline_dir(inode) \
2743 if (f2fs_has_inline_dentry(inode)) \
2744 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2746 #define stat_inc_seg_type(sbi, curseg) \
2747 ((sbi)->segment_count[(curseg)->alloc_type]++)
2748 #define stat_inc_block_count(sbi, curseg) \
2749 ((sbi)->block_count[(curseg)->alloc_type]++)
2750 #define stat_inc_inplace_blocks(sbi) \
2751 (atomic_inc(&(sbi)->inplace_count))
2752 #define stat_inc_atomic_write(inode) \
2753 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2754 #define stat_dec_atomic_write(inode) \
2755 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2756 #define stat_update_max_atomic_write(inode) \
2758 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2759 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2761 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2763 #define stat_inc_volatile_write(inode) \
2764 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2765 #define stat_dec_volatile_write(inode) \
2766 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2767 #define stat_update_max_volatile_write(inode) \
2769 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2770 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2772 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2774 #define stat_inc_seg_count(sbi, type, gc_type) \
2776 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2778 if ((type) == SUM_TYPE_DATA) { \
2780 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2783 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2787 #define stat_inc_tot_blk_count(si, blks) \
2788 ((si)->tot_blks += (blks))
2790 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2792 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2793 stat_inc_tot_blk_count(si, blks); \
2794 si->data_blks += (blks); \
2795 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2798 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2800 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2801 stat_inc_tot_blk_count(si, blks); \
2802 si->node_blks += (blks); \
2803 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2806 int f2fs_build_stats(struct f2fs_sb_info *sbi);
2807 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
2808 int __init f2fs_create_root_stats(void);
2809 void f2fs_destroy_root_stats(void);
2811 #define stat_inc_cp_count(si) do { } while (0)
2812 #define stat_inc_bg_cp_count(si) do { } while (0)
2813 #define stat_inc_call_count(si) do { } while (0)
2814 #define stat_inc_bggc_count(si) do { } while (0)
2815 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
2816 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
2817 #define stat_inc_total_hit(sb) do { } while (0)
2818 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
2819 #define stat_inc_largest_node_hit(sbi) do { } while (0)
2820 #define stat_inc_cached_node_hit(sbi) do { } while (0)
2821 #define stat_inc_inline_xattr(inode) do { } while (0)
2822 #define stat_dec_inline_xattr(inode) do { } while (0)
2823 #define stat_inc_inline_inode(inode) do { } while (0)
2824 #define stat_dec_inline_inode(inode) do { } while (0)
2825 #define stat_inc_inline_dir(inode) do { } while (0)
2826 #define stat_dec_inline_dir(inode) do { } while (0)
2827 #define stat_inc_atomic_write(inode) do { } while (0)
2828 #define stat_dec_atomic_write(inode) do { } while (0)
2829 #define stat_update_max_atomic_write(inode) do { } while (0)
2830 #define stat_inc_volatile_write(inode) do { } while (0)
2831 #define stat_dec_volatile_write(inode) do { } while (0)
2832 #define stat_update_max_volatile_write(inode) do { } while (0)
2833 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
2834 #define stat_inc_block_count(sbi, curseg) do { } while (0)
2835 #define stat_inc_inplace_blocks(sbi) do { } while (0)
2836 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2837 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
2838 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2839 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
2841 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2842 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
2843 static inline int __init f2fs_create_root_stats(void) { return 0; }
2844 static inline void f2fs_destroy_root_stats(void) { }
2847 extern const struct file_operations f2fs_dir_operations;
2848 extern const struct file_operations f2fs_file_operations;
2849 extern const struct inode_operations f2fs_file_inode_operations;
2850 extern const struct address_space_operations f2fs_dblock_aops;
2851 extern const struct address_space_operations f2fs_node_aops;
2852 extern const struct address_space_operations f2fs_meta_aops;
2853 extern const struct inode_operations f2fs_dir_inode_operations;
2854 extern const struct inode_operations f2fs_symlink_inode_operations;
2855 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
2856 extern const struct inode_operations f2fs_special_inode_operations;
2857 extern struct kmem_cache *inode_entry_slab;
2862 bool f2fs_may_inline_data(struct inode *inode);
2863 bool f2fs_may_inline_dentry(struct inode *inode);
2864 void read_inline_data(struct page *page, struct page *ipage);
2865 void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from);
2866 int f2fs_read_inline_data(struct inode *inode, struct page *page);
2867 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
2868 int f2fs_convert_inline_inode(struct inode *inode);
2869 int f2fs_write_inline_data(struct inode *inode, struct page *page);
2870 bool recover_inline_data(struct inode *inode, struct page *npage);
2871 struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
2872 struct fscrypt_name *fname, struct page **res_page);
2873 int make_empty_inline_dir(struct inode *inode, struct inode *parent,
2874 struct page *ipage);
2875 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
2876 const struct qstr *orig_name,
2877 struct inode *inode, nid_t ino, umode_t mode);
2878 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
2879 struct inode *dir, struct inode *inode);
2880 bool f2fs_empty_inline_dir(struct inode *dir);
2881 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
2882 struct fscrypt_str *fstr);
2883 int f2fs_inline_data_fiemap(struct inode *inode,
2884 struct fiemap_extent_info *fieinfo,
2885 __u64 start, __u64 len);
2890 unsigned long f2fs_shrink_count(struct shrinker *shrink,
2891 struct shrink_control *sc);
2892 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
2893 struct shrink_control *sc);
2894 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
2895 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
2900 struct rb_entry *__lookup_rb_tree(struct rb_root *root,
2901 struct rb_entry *cached_re, unsigned int ofs);
2902 struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
2903 struct rb_root *root, struct rb_node **parent,
2905 struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root,
2906 struct rb_entry *cached_re, unsigned int ofs,
2907 struct rb_entry **prev_entry, struct rb_entry **next_entry,
2908 struct rb_node ***insert_p, struct rb_node **insert_parent,
2910 bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi,
2911 struct rb_root *root);
2912 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
2913 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
2914 void f2fs_drop_extent_tree(struct inode *inode);
2915 unsigned int f2fs_destroy_extent_node(struct inode *inode);
2916 void f2fs_destroy_extent_tree(struct inode *inode);
2917 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
2918 struct extent_info *ei);
2919 void f2fs_update_extent_cache(struct dnode_of_data *dn);
2920 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2921 pgoff_t fofs, block_t blkaddr, unsigned int len);
2922 void init_extent_cache_info(struct f2fs_sb_info *sbi);
2923 int __init create_extent_cache(void);
2924 void destroy_extent_cache(void);
2929 int __init f2fs_init_sysfs(void);
2930 void f2fs_exit_sysfs(void);
2931 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
2932 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
2937 static inline bool f2fs_encrypted_inode(struct inode *inode)
2939 return file_is_encrypt(inode);
2942 static inline bool f2fs_encrypted_file(struct inode *inode)
2944 return f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode);
2947 static inline void f2fs_set_encrypted_inode(struct inode *inode)
2949 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2950 file_set_encrypt(inode);
2954 static inline bool f2fs_bio_encrypted(struct bio *bio)
2956 return bio->bi_private != NULL;
2959 static inline int f2fs_sb_has_crypto(struct super_block *sb)
2961 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
2964 static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
2966 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
2969 static inline int f2fs_sb_has_extra_attr(struct super_block *sb)
2971 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_EXTRA_ATTR);
2974 static inline int f2fs_sb_has_project_quota(struct super_block *sb)
2976 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_PRJQUOTA);
2979 static inline int f2fs_sb_has_inode_chksum(struct super_block *sb)
2981 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_INODE_CHKSUM);
2984 #ifdef CONFIG_BLK_DEV_ZONED
2985 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
2986 struct block_device *bdev, block_t blkaddr)
2988 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
2991 for (i = 0; i < sbi->s_ndevs; i++)
2992 if (FDEV(i).bdev == bdev)
2993 return FDEV(i).blkz_type[zno];
2998 static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
3000 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
3002 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
3005 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
3007 clear_opt(sbi, ADAPTIVE);
3008 clear_opt(sbi, LFS);
3011 case F2FS_MOUNT_ADAPTIVE:
3012 set_opt(sbi, ADAPTIVE);
3014 case F2FS_MOUNT_LFS:
3020 static inline bool f2fs_may_encrypt(struct inode *inode)
3022 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3023 umode_t mode = inode->i_mode;
3025 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));