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
96 #define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
97 #define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
98 #define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option)
100 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
101 typecheck(unsigned long long, b) && \
102 ((long long)((a) - (b)) > 0))
104 typedef u32 block_t; /*
105 * should not change u32, since it is the on-disk block
106 * address format, __le32.
110 struct f2fs_mount_info {
114 #define F2FS_FEATURE_ENCRYPT 0x0001
115 #define F2FS_FEATURE_BLKZONED 0x0002
116 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
117 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
118 #define F2FS_FEATURE_PRJQUOTA 0x0010
119 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
121 #define F2FS_HAS_FEATURE(sb, mask) \
122 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
123 #define F2FS_SET_FEATURE(sb, mask) \
124 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
125 #define F2FS_CLEAR_FEATURE(sb, mask) \
126 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
129 * For checkpoint manager
136 #define CP_UMOUNT 0x00000001
137 #define CP_FASTBOOT 0x00000002
138 #define CP_SYNC 0x00000004
139 #define CP_RECOVERY 0x00000008
140 #define CP_DISCARD 0x00000010
141 #define CP_TRIMMED 0x00000020
143 #define DEF_BATCHED_TRIM_SECTIONS 2048
144 #define BATCHED_TRIM_SEGMENTS(sbi) \
145 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
146 #define BATCHED_TRIM_BLOCKS(sbi) \
147 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
148 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
149 #define DISCARD_ISSUE_RATE 8
150 #define DEF_CP_INTERVAL 60 /* 60 secs */
151 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
162 * For CP/NAT/SIT/SSA readahead
172 /* for the list of ino */
174 ORPHAN_INO, /* for orphan ino list */
175 APPEND_INO, /* for append ino list */
176 UPDATE_INO, /* for update ino list */
177 MAX_INO_ENTRY, /* max. list */
181 struct list_head list; /* list head */
182 nid_t ino; /* inode number */
185 /* for the list of inodes to be GCed */
187 struct list_head list; /* list head */
188 struct inode *inode; /* vfs inode pointer */
191 /* for the bitmap indicate blocks to be discarded */
192 struct discard_entry {
193 struct list_head list; /* list head */
194 block_t start_blkaddr; /* start blockaddr of current segment */
195 unsigned char discard_map[SIT_VBLOCK_MAP_SIZE]; /* segment discard bitmap */
198 /* max discard pend list number */
199 #define MAX_PLIST_NUM 512
200 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
201 (MAX_PLIST_NUM - 1) : (blk_num - 1))
209 struct discard_info {
210 block_t lstart; /* logical start address */
211 block_t len; /* length */
212 block_t start; /* actual start address in dev */
216 struct rb_node rb_node; /* rb node located in rb-tree */
219 block_t lstart; /* logical start address */
220 block_t len; /* length */
221 block_t start; /* actual start address in dev */
223 struct discard_info di; /* discard info */
226 struct list_head list; /* command list */
227 struct completion wait; /* compleation */
228 struct block_device *bdev; /* bdev */
229 unsigned short ref; /* reference count */
230 unsigned char state; /* state */
231 int error; /* bio error */
234 struct discard_cmd_control {
235 struct task_struct *f2fs_issue_discard; /* discard thread */
236 struct list_head entry_list; /* 4KB discard entry list */
237 struct list_head pend_list[MAX_PLIST_NUM];/* store pending entries */
238 struct list_head wait_list; /* store on-flushing entries */
239 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
240 struct mutex cmd_lock;
241 unsigned int nr_discards; /* # of discards in the list */
242 unsigned int max_discards; /* max. discards to be issued */
243 unsigned int undiscard_blks; /* # of undiscard blocks */
244 atomic_t issued_discard; /* # of issued discard */
245 atomic_t issing_discard; /* # of issing discard */
246 atomic_t discard_cmd_cnt; /* # of cached cmd count */
247 struct rb_root root; /* root of discard rb-tree */
250 /* for the list of fsync inodes, used only during recovery */
251 struct fsync_inode_entry {
252 struct list_head list; /* list head */
253 struct inode *inode; /* vfs inode pointer */
254 block_t blkaddr; /* block address locating the last fsync */
255 block_t last_dentry; /* block address locating the last dentry */
258 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
259 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
261 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
262 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
263 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
264 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
266 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
267 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
269 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
271 int before = nats_in_cursum(journal);
273 journal->n_nats = cpu_to_le16(before + i);
277 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
279 int before = sits_in_cursum(journal);
281 journal->n_sits = cpu_to_le16(before + i);
285 static inline bool __has_cursum_space(struct f2fs_journal *journal,
288 if (type == NAT_JOURNAL)
289 return size <= MAX_NAT_JENTRIES(journal);
290 return size <= MAX_SIT_JENTRIES(journal);
296 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
297 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
298 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
300 #define F2FS_IOCTL_MAGIC 0xf5
301 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
302 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
303 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
304 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
305 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
306 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
307 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
308 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
309 struct f2fs_defragment)
310 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
311 struct f2fs_move_range)
312 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
313 struct f2fs_flush_device)
314 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
315 struct f2fs_gc_range)
316 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
318 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
319 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
320 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
323 * should be same as XFS_IOC_GOINGDOWN.
324 * Flags for going down operation used by FS_IOC_GOINGDOWN
326 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
327 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
328 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
329 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
330 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
332 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
334 * ioctl commands in 32 bit emulation
336 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
337 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
338 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
341 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
342 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
344 struct f2fs_gc_range {
350 struct f2fs_defragment {
355 struct f2fs_move_range {
356 u32 dst_fd; /* destination fd */
357 u64 pos_in; /* start position in src_fd */
358 u64 pos_out; /* start position in dst_fd */
359 u64 len; /* size to move */
362 struct f2fs_flush_device {
363 u32 dev_num; /* device number to flush */
364 u32 segments; /* # of segments to flush */
367 /* for inline stuff */
368 #define DEF_INLINE_RESERVED_SIZE 1
369 static inline int get_extra_isize(struct inode *inode);
370 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
371 (CUR_ADDRS_PER_INODE(inode) - \
372 DEF_INLINE_RESERVED_SIZE - \
373 F2FS_INLINE_XATTR_ADDRS))
376 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
377 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
379 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
380 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
381 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
382 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
383 NR_INLINE_DENTRY(inode) + \
384 INLINE_DENTRY_BITMAP_SIZE(inode)))
387 * For INODE and NODE manager
389 /* for directory operations */
390 struct f2fs_dentry_ptr {
393 struct f2fs_dir_entry *dentry;
394 __u8 (*filename)[F2FS_SLOT_LEN];
399 static inline void make_dentry_ptr_block(struct inode *inode,
400 struct f2fs_dentry_ptr *d, struct f2fs_dentry_block *t)
403 d->max = NR_DENTRY_IN_BLOCK;
404 d->nr_bitmap = SIZE_OF_DENTRY_BITMAP;
405 d->bitmap = &t->dentry_bitmap;
406 d->dentry = t->dentry;
407 d->filename = t->filename;
410 static inline void make_dentry_ptr_inline(struct inode *inode,
411 struct f2fs_dentry_ptr *d, void *t)
413 int entry_cnt = NR_INLINE_DENTRY(inode);
414 int bitmap_size = INLINE_DENTRY_BITMAP_SIZE(inode);
415 int reserved_size = INLINE_RESERVED_SIZE(inode);
419 d->nr_bitmap = bitmap_size;
421 d->dentry = t + bitmap_size + reserved_size;
422 d->filename = t + bitmap_size + reserved_size +
423 SIZE_OF_DIR_ENTRY * entry_cnt;
427 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
428 * as its node offset to distinguish from index node blocks.
429 * But some bits are used to mark the node block.
431 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
434 ALLOC_NODE, /* allocate a new node page if needed */
435 LOOKUP_NODE, /* look up a node without readahead */
437 * look up a node with readahead called
442 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
444 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
446 /* vector size for gang look-up from extent cache that consists of radix tree */
447 #define EXT_TREE_VEC_SIZE 64
449 /* for in-memory extent cache entry */
450 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
452 /* number of extent info in extent cache we try to shrink */
453 #define EXTENT_CACHE_SHRINK_NUMBER 128
456 struct rb_node rb_node; /* rb node located in rb-tree */
457 unsigned int ofs; /* start offset of the entry */
458 unsigned int len; /* length of the entry */
462 unsigned int fofs; /* start offset in a file */
463 unsigned int len; /* length of the extent */
464 u32 blk; /* start block address of the extent */
468 struct rb_node rb_node;
475 struct extent_info ei; /* extent info */
478 struct list_head list; /* node in global extent list of sbi */
479 struct extent_tree *et; /* extent tree pointer */
483 nid_t ino; /* inode number */
484 struct rb_root root; /* root of extent info rb-tree */
485 struct extent_node *cached_en; /* recently accessed extent node */
486 struct extent_info largest; /* largested extent info */
487 struct list_head list; /* to be used by sbi->zombie_list */
488 rwlock_t lock; /* protect extent info rb-tree */
489 atomic_t node_cnt; /* # of extent node in rb-tree*/
493 * This structure is taken from ext4_map_blocks.
495 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
497 #define F2FS_MAP_NEW (1 << BH_New)
498 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
499 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
500 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
503 struct f2fs_map_blocks {
507 unsigned int m_flags;
508 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
511 /* for flag in get_data_block */
512 #define F2FS_GET_BLOCK_READ 0
513 #define F2FS_GET_BLOCK_DIO 1
514 #define F2FS_GET_BLOCK_FIEMAP 2
515 #define F2FS_GET_BLOCK_BMAP 3
516 #define F2FS_GET_BLOCK_PRE_DIO 4
517 #define F2FS_GET_BLOCK_PRE_AIO 5
520 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
522 #define FADVISE_COLD_BIT 0x01
523 #define FADVISE_LOST_PINO_BIT 0x02
524 #define FADVISE_ENCRYPT_BIT 0x04
525 #define FADVISE_ENC_NAME_BIT 0x08
526 #define FADVISE_KEEP_SIZE_BIT 0x10
528 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
529 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
530 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
531 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
532 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
533 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
534 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
535 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
536 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
537 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
538 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
539 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
540 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
542 #define DEF_DIR_LEVEL 0
544 struct f2fs_inode_info {
545 struct inode vfs_inode; /* serve a vfs inode */
546 unsigned long i_flags; /* keep an inode flags for ioctl */
547 unsigned char i_advise; /* use to give file attribute hints */
548 unsigned char i_dir_level; /* use for dentry level for large dir */
549 unsigned int i_current_depth; /* use only in directory structure */
550 unsigned int i_pino; /* parent inode number */
551 umode_t i_acl_mode; /* keep file acl mode temporarily */
553 /* Use below internally in f2fs*/
554 unsigned long flags; /* use to pass per-file flags */
555 struct rw_semaphore i_sem; /* protect fi info */
556 atomic_t dirty_pages; /* # of dirty pages */
557 f2fs_hash_t chash; /* hash value of given file name */
558 unsigned int clevel; /* maximum level of given file name */
559 struct task_struct *task; /* lookup and create consistency */
560 struct task_struct *cp_task; /* separate cp/wb IO stats*/
561 nid_t i_xattr_nid; /* node id that contains xattrs */
562 loff_t last_disk_size; /* lastly written file size */
565 struct dquot *i_dquot[MAXQUOTAS];
567 /* quota space reservation, managed internally by quota code */
568 qsize_t i_reserved_quota;
570 struct list_head dirty_list; /* dirty list for dirs and files */
571 struct list_head gdirty_list; /* linked in global dirty list */
572 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
573 struct task_struct *inmem_task; /* store inmemory task */
574 struct mutex inmem_lock; /* lock for inmemory pages */
575 struct extent_tree *extent_tree; /* cached extent_tree entry */
576 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
577 struct rw_semaphore i_mmap_sem;
579 int i_extra_isize; /* size of extra space located in i_addr */
580 kprojid_t i_projid; /* id for project quota */
583 static inline void get_extent_info(struct extent_info *ext,
584 struct f2fs_extent *i_ext)
586 ext->fofs = le32_to_cpu(i_ext->fofs);
587 ext->blk = le32_to_cpu(i_ext->blk);
588 ext->len = le32_to_cpu(i_ext->len);
591 static inline void set_raw_extent(struct extent_info *ext,
592 struct f2fs_extent *i_ext)
594 i_ext->fofs = cpu_to_le32(ext->fofs);
595 i_ext->blk = cpu_to_le32(ext->blk);
596 i_ext->len = cpu_to_le32(ext->len);
599 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
600 u32 blk, unsigned int len)
607 static inline bool __is_discard_mergeable(struct discard_info *back,
608 struct discard_info *front)
610 return back->lstart + back->len == front->lstart;
613 static inline bool __is_discard_back_mergeable(struct discard_info *cur,
614 struct discard_info *back)
616 return __is_discard_mergeable(back, cur);
619 static inline bool __is_discard_front_mergeable(struct discard_info *cur,
620 struct discard_info *front)
622 return __is_discard_mergeable(cur, front);
625 static inline bool __is_extent_mergeable(struct extent_info *back,
626 struct extent_info *front)
628 return (back->fofs + back->len == front->fofs &&
629 back->blk + back->len == front->blk);
632 static inline bool __is_back_mergeable(struct extent_info *cur,
633 struct extent_info *back)
635 return __is_extent_mergeable(back, cur);
638 static inline bool __is_front_mergeable(struct extent_info *cur,
639 struct extent_info *front)
641 return __is_extent_mergeable(cur, front);
644 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
645 static inline void __try_update_largest_extent(struct inode *inode,
646 struct extent_tree *et, struct extent_node *en)
648 if (en->ei.len > et->largest.len) {
649 et->largest = en->ei;
650 f2fs_mark_inode_dirty_sync(inode, true);
660 struct f2fs_nm_info {
661 block_t nat_blkaddr; /* base disk address of NAT */
662 nid_t max_nid; /* maximum possible node ids */
663 nid_t available_nids; /* # of available node ids */
664 nid_t next_scan_nid; /* the next nid to be scanned */
665 unsigned int ram_thresh; /* control the memory footprint */
666 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
667 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
669 /* NAT cache management */
670 struct radix_tree_root nat_root;/* root of the nat entry cache */
671 struct radix_tree_root nat_set_root;/* root of the nat set cache */
672 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
673 struct list_head nat_entries; /* cached nat entry list (clean) */
674 unsigned int nat_cnt; /* the # of cached nat entries */
675 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
676 unsigned int nat_blocks; /* # of nat blocks */
678 /* free node ids management */
679 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
680 struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
681 unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */
682 spinlock_t nid_list_lock; /* protect nid lists ops */
683 struct mutex build_lock; /* lock for build free nids */
684 unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE];
685 unsigned char *nat_block_bitmap;
686 unsigned short *free_nid_count; /* free nid count of NAT block */
689 char *nat_bitmap; /* NAT bitmap pointer */
691 unsigned int nat_bits_blocks; /* # of nat bits blocks */
692 unsigned char *nat_bits; /* NAT bits blocks */
693 unsigned char *full_nat_bits; /* full NAT pages */
694 unsigned char *empty_nat_bits; /* empty NAT pages */
695 #ifdef CONFIG_F2FS_CHECK_FS
696 char *nat_bitmap_mir; /* NAT bitmap mirror */
698 int bitmap_size; /* bitmap size */
702 * this structure is used as one of function parameters.
703 * all the information are dedicated to a given direct node block determined
704 * by the data offset in a file.
706 struct dnode_of_data {
707 struct inode *inode; /* vfs inode pointer */
708 struct page *inode_page; /* its inode page, NULL is possible */
709 struct page *node_page; /* cached direct node page */
710 nid_t nid; /* node id of the direct node block */
711 unsigned int ofs_in_node; /* data offset in the node page */
712 bool inode_page_locked; /* inode page is locked or not */
713 bool node_changed; /* is node block changed */
714 char cur_level; /* level of hole node page */
715 char max_level; /* level of current page located */
716 block_t data_blkaddr; /* block address of the node block */
719 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
720 struct page *ipage, struct page *npage, nid_t nid)
722 memset(dn, 0, sizeof(*dn));
724 dn->inode_page = ipage;
725 dn->node_page = npage;
732 * By default, there are 6 active log areas across the whole main area.
733 * When considering hot and cold data separation to reduce cleaning overhead,
734 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
736 * In the current design, you should not change the numbers intentionally.
737 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
738 * logs individually according to the underlying devices. (default: 6)
739 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
740 * data and 8 for node logs.
742 #define NR_CURSEG_DATA_TYPE (3)
743 #define NR_CURSEG_NODE_TYPE (3)
744 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
747 CURSEG_HOT_DATA = 0, /* directory entry blocks */
748 CURSEG_WARM_DATA, /* data blocks */
749 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
750 CURSEG_HOT_NODE, /* direct node blocks of directory files */
751 CURSEG_WARM_NODE, /* direct node blocks of normal files */
752 CURSEG_COLD_NODE, /* indirect node blocks */
757 struct completion wait;
758 struct llist_node llnode;
762 struct flush_cmd_control {
763 struct task_struct *f2fs_issue_flush; /* flush thread */
764 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
765 atomic_t issued_flush; /* # of issued flushes */
766 atomic_t issing_flush; /* # of issing flushes */
767 struct llist_head issue_list; /* list for command issue */
768 struct llist_node *dispatch_list; /* list for command dispatch */
771 struct f2fs_sm_info {
772 struct sit_info *sit_info; /* whole segment information */
773 struct free_segmap_info *free_info; /* free segment information */
774 struct dirty_seglist_info *dirty_info; /* dirty segment information */
775 struct curseg_info *curseg_array; /* active segment information */
777 block_t seg0_blkaddr; /* block address of 0'th segment */
778 block_t main_blkaddr; /* start block address of main area */
779 block_t ssa_blkaddr; /* start block address of SSA area */
781 unsigned int segment_count; /* total # of segments */
782 unsigned int main_segments; /* # of segments in main area */
783 unsigned int reserved_segments; /* # of reserved segments */
784 unsigned int ovp_segments; /* # of overprovision segments */
786 /* a threshold to reclaim prefree segments */
787 unsigned int rec_prefree_segments;
789 /* for batched trimming */
790 unsigned int trim_sections; /* # of sections to trim */
792 struct list_head sit_entry_set; /* sit entry set list */
794 unsigned int ipu_policy; /* in-place-update policy */
795 unsigned int min_ipu_util; /* in-place-update threshold */
796 unsigned int min_fsync_blocks; /* threshold for fsync */
797 unsigned int min_hot_blocks; /* threshold for hot block allocation */
799 /* for flush command control */
800 struct flush_cmd_control *fcc_info;
802 /* for discard command control */
803 struct discard_cmd_control *dcc_info;
810 * COUNT_TYPE for monitoring
812 * f2fs monitors the number of several block types such as on-writeback,
813 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
815 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
829 * The below are the page types of bios used in submit_bio().
830 * The available types are:
831 * DATA User data pages. It operates as async mode.
832 * NODE Node pages. It operates as async mode.
833 * META FS metadata pages such as SIT, NAT, CP.
834 * NR_PAGE_TYPE The number of page types.
835 * META_FLUSH Make sure the previous pages are written
836 * with waiting the bio's completion
837 * ... Only can be used with META.
839 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
846 INMEM, /* the below types are used by tracepoints only. */
855 HOT = 0, /* must be zero for meta bio */
861 enum need_lock_type {
868 APP_DIRECT_IO, /* app direct IOs */
869 APP_BUFFERED_IO, /* app buffered IOs */
870 APP_WRITE_IO, /* app write IOs */
871 APP_MAPPED_IO, /* app mapped IOs */
872 FS_DATA_IO, /* data IOs from kworker/fsync/reclaimer */
873 FS_NODE_IO, /* node IOs from kworker/fsync/reclaimer */
874 FS_META_IO, /* meta IOs from kworker/reclaimer */
875 FS_GC_DATA_IO, /* data IOs from forground gc */
876 FS_GC_NODE_IO, /* node IOs from forground gc */
877 FS_CP_DATA_IO, /* data IOs from checkpoint */
878 FS_CP_NODE_IO, /* node IOs from checkpoint */
879 FS_CP_META_IO, /* meta IOs from checkpoint */
880 FS_DISCARD, /* discard */
884 struct f2fs_io_info {
885 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
886 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
887 enum temp_type temp; /* contains HOT/WARM/COLD */
888 int op; /* contains REQ_OP_ */
889 int op_flags; /* req_flag_bits */
890 block_t new_blkaddr; /* new block address to be written */
891 block_t old_blkaddr; /* old block address before Cow */
892 struct page *page; /* page to be written */
893 struct page *encrypted_page; /* encrypted page */
894 struct list_head list; /* serialize IOs */
895 bool submitted; /* indicate IO submission */
896 int need_lock; /* indicate we need to lock cp_rwsem */
897 bool in_list; /* indicate fio is in io_list */
898 enum iostat_type io_type; /* io type */
901 #define is_read_io(rw) ((rw) == READ)
902 struct f2fs_bio_info {
903 struct f2fs_sb_info *sbi; /* f2fs superblock */
904 struct bio *bio; /* bios to merge */
905 sector_t last_block_in_bio; /* last block number */
906 struct f2fs_io_info fio; /* store buffered io info. */
907 struct rw_semaphore io_rwsem; /* blocking op for bio */
908 spinlock_t io_lock; /* serialize DATA/NODE IOs */
909 struct list_head io_list; /* track fios */
912 #define FDEV(i) (sbi->devs[i])
913 #define RDEV(i) (raw_super->devs[i])
914 struct f2fs_dev_info {
915 struct block_device *bdev;
916 char path[MAX_PATH_LEN];
917 unsigned int total_segments;
920 #ifdef CONFIG_BLK_DEV_ZONED
921 unsigned int nr_blkz; /* Total number of zones */
922 u8 *blkz_type; /* Array of zones type */
927 DIR_INODE, /* for dirty dir inode */
928 FILE_INODE, /* for dirty regular/symlink inode */
929 DIRTY_META, /* for all dirtied inode metadata */
933 /* for inner inode cache management */
934 struct inode_management {
935 struct radix_tree_root ino_root; /* ino entry array */
936 spinlock_t ino_lock; /* for ino entry lock */
937 struct list_head ino_list; /* inode list head */
938 unsigned long ino_num; /* number of entries */
941 /* For s_flag in struct f2fs_sb_info */
943 SBI_IS_DIRTY, /* dirty flag for checkpoint */
944 SBI_IS_CLOSE, /* specify unmounting */
945 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
946 SBI_POR_DOING, /* recovery is doing or not */
947 SBI_NEED_SB_WRITE, /* need to recover superblock */
948 SBI_NEED_CP, /* need to checkpoint */
957 struct f2fs_sb_info {
958 struct super_block *sb; /* pointer to VFS super block */
959 struct proc_dir_entry *s_proc; /* proc entry */
960 struct f2fs_super_block *raw_super; /* raw super block pointer */
961 int valid_super_block; /* valid super block no */
962 unsigned long s_flag; /* flags for sbi */
964 #ifdef CONFIG_BLK_DEV_ZONED
965 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
966 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
969 /* for node-related operations */
970 struct f2fs_nm_info *nm_info; /* node manager */
971 struct inode *node_inode; /* cache node blocks */
973 /* for segment-related operations */
974 struct f2fs_sm_info *sm_info; /* segment manager */
976 /* for bio operations */
977 struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
978 struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
979 /* bio ordering for NODE/DATA */
980 int write_io_size_bits; /* Write IO size bits */
981 mempool_t *write_io_dummy; /* Dummy pages */
984 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
985 int cur_cp_pack; /* remain current cp pack */
986 spinlock_t cp_lock; /* for flag in ckpt */
987 struct inode *meta_inode; /* cache meta blocks */
988 struct mutex cp_mutex; /* checkpoint procedure lock */
989 struct rw_semaphore cp_rwsem; /* blocking FS operations */
990 struct rw_semaphore node_write; /* locking node writes */
991 struct rw_semaphore node_change; /* locking node change */
992 wait_queue_head_t cp_wait;
993 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
994 long interval_time[MAX_TIME]; /* to store thresholds */
996 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
998 /* for orphan inode, use 0'th array */
999 unsigned int max_orphans; /* max orphan inodes */
1001 /* for inode management */
1002 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
1003 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
1005 /* for extent tree cache */
1006 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
1007 struct mutex extent_tree_lock; /* locking extent radix tree */
1008 struct list_head extent_list; /* lru list for shrinker */
1009 spinlock_t extent_lock; /* locking extent lru list */
1010 atomic_t total_ext_tree; /* extent tree count */
1011 struct list_head zombie_list; /* extent zombie tree list */
1012 atomic_t total_zombie_tree; /* extent zombie tree count */
1013 atomic_t total_ext_node; /* extent info count */
1015 /* basic filesystem units */
1016 unsigned int log_sectors_per_block; /* log2 sectors per block */
1017 unsigned int log_blocksize; /* log2 block size */
1018 unsigned int blocksize; /* block size */
1019 unsigned int root_ino_num; /* root inode number*/
1020 unsigned int node_ino_num; /* node inode number*/
1021 unsigned int meta_ino_num; /* meta inode number*/
1022 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
1023 unsigned int blocks_per_seg; /* blocks per segment */
1024 unsigned int segs_per_sec; /* segments per section */
1025 unsigned int secs_per_zone; /* sections per zone */
1026 unsigned int total_sections; /* total section count */
1027 unsigned int total_node_count; /* total node block count */
1028 unsigned int total_valid_node_count; /* valid node block count */
1029 loff_t max_file_blocks; /* max block index of file */
1030 int active_logs; /* # of active logs */
1031 int dir_level; /* directory level */
1033 block_t user_block_count; /* # of user blocks */
1034 block_t total_valid_block_count; /* # of valid blocks */
1035 block_t discard_blks; /* discard command candidats */
1036 block_t last_valid_block_count; /* for recovery */
1037 block_t reserved_blocks; /* configurable reserved blocks */
1039 u32 s_next_generation; /* for NFS support */
1041 /* # of pages, see count_type */
1042 atomic_t nr_pages[NR_COUNT_TYPE];
1043 /* # of allocated blocks */
1044 struct percpu_counter alloc_valid_block_count;
1046 /* writeback control */
1047 atomic_t wb_sync_req; /* count # of WB_SYNC threads */
1049 /* valid inode count */
1050 struct percpu_counter total_valid_inode_count;
1052 struct f2fs_mount_info mount_opt; /* mount options */
1054 /* for cleaning operations */
1055 struct mutex gc_mutex; /* mutex for GC */
1056 struct f2fs_gc_kthread *gc_thread; /* GC thread */
1057 unsigned int cur_victim_sec; /* current victim section num */
1059 /* threshold for converting bg victims for fg */
1062 /* maximum # of trials to find a victim segment for SSR and GC */
1063 unsigned int max_victim_search;
1066 * for stat information.
1067 * one is for the LFS mode, and the other is for the SSR mode.
1069 #ifdef CONFIG_F2FS_STAT_FS
1070 struct f2fs_stat_info *stat_info; /* FS status information */
1071 unsigned int segment_count[2]; /* # of allocated segments */
1072 unsigned int block_count[2]; /* # of allocated blocks */
1073 atomic_t inplace_count; /* # of inplace update */
1074 atomic64_t total_hit_ext; /* # of lookup extent cache */
1075 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
1076 atomic64_t read_hit_largest; /* # of hit largest extent node */
1077 atomic64_t read_hit_cached; /* # of hit cached extent node */
1078 atomic_t inline_xattr; /* # of inline_xattr inodes */
1079 atomic_t inline_inode; /* # of inline_data inodes */
1080 atomic_t inline_dir; /* # of inline_dentry inodes */
1081 atomic_t aw_cnt; /* # of atomic writes */
1082 atomic_t vw_cnt; /* # of volatile writes */
1083 atomic_t max_aw_cnt; /* max # of atomic writes */
1084 atomic_t max_vw_cnt; /* max # of volatile writes */
1085 int bg_gc; /* background gc calls */
1086 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
1088 spinlock_t stat_lock; /* lock for stat operations */
1090 /* For app/fs IO statistics */
1091 spinlock_t iostat_lock;
1092 unsigned long long write_iostat[NR_IO_TYPE];
1095 /* For sysfs suppport */
1096 struct kobject s_kobj;
1097 struct completion s_kobj_unregister;
1099 /* For shrinker support */
1100 struct list_head s_list;
1101 int s_ndevs; /* number of devices */
1102 struct f2fs_dev_info *devs; /* for device list */
1103 struct mutex umount_mutex;
1104 unsigned int shrinker_run_no;
1106 /* For write statistics */
1107 u64 sectors_written_start;
1110 /* Reference to checksum algorithm driver via cryptoapi */
1111 struct crypto_shash *s_chksum_driver;
1113 /* Precomputed FS UUID checksum for seeding other checksums */
1114 __u32 s_chksum_seed;
1116 /* For fault injection */
1117 #ifdef CONFIG_F2FS_FAULT_INJECTION
1118 struct f2fs_fault_info fault_info;
1122 #ifdef CONFIG_F2FS_FAULT_INJECTION
1123 #define f2fs_show_injection_info(type) \
1124 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1125 KERN_INFO, fault_name[type], \
1126 __func__, __builtin_return_address(0))
1127 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
1129 struct f2fs_fault_info *ffi = &sbi->fault_info;
1131 if (!ffi->inject_rate)
1134 if (!IS_FAULT_SET(ffi, type))
1137 atomic_inc(&ffi->inject_ops);
1138 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
1139 atomic_set(&ffi->inject_ops, 0);
1146 /* For write statistics. Suppose sector size is 512 bytes,
1147 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1149 #define BD_PART_WRITTEN(s) \
1150 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1151 (s)->sectors_written_start) >> 1)
1153 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
1155 sbi->last_time[type] = jiffies;
1158 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
1160 struct timespec ts = {sbi->interval_time[type], 0};
1161 unsigned long interval = timespec_to_jiffies(&ts);
1163 return time_after(jiffies, sbi->last_time[type] + interval);
1166 static inline bool is_idle(struct f2fs_sb_info *sbi)
1168 struct block_device *bdev = sbi->sb->s_bdev;
1169 struct request_queue *q = bdev_get_queue(bdev);
1170 struct request_list *rl = &q->root_rl;
1172 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1175 return f2fs_time_over(sbi, REQ_TIME);
1181 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1182 unsigned int length)
1184 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
1185 u32 *ctx = (u32 *)shash_desc_ctx(shash);
1189 shash->tfm = sbi->s_chksum_driver;
1191 *ctx = F2FS_SUPER_MAGIC;
1193 err = crypto_shash_update(shash, address, length);
1201 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1202 void *buf, size_t buf_size)
1204 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1207 static inline u32 f2fs_chksum(struct f2fs_sb_info *sbi, u32 crc,
1208 const void *address, unsigned int length)
1211 struct shash_desc shash;
1216 BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver) != sizeof(desc.ctx));
1218 desc.shash.tfm = sbi->s_chksum_driver;
1219 desc.shash.flags = 0;
1220 *(u32 *)desc.ctx = crc;
1222 err = crypto_shash_update(&desc.shash, address, length);
1225 return *(u32 *)desc.ctx;
1228 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1230 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1233 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1235 return sb->s_fs_info;
1238 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1240 return F2FS_SB(inode->i_sb);
1243 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1245 return F2FS_I_SB(mapping->host);
1248 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1250 return F2FS_M_SB(page->mapping);
1253 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1255 return (struct f2fs_super_block *)(sbi->raw_super);
1258 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1260 return (struct f2fs_checkpoint *)(sbi->ckpt);
1263 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1265 return (struct f2fs_node *)page_address(page);
1268 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1270 return &((struct f2fs_node *)page_address(page))->i;
1273 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1275 return (struct f2fs_nm_info *)(sbi->nm_info);
1278 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1280 return (struct f2fs_sm_info *)(sbi->sm_info);
1283 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1285 return (struct sit_info *)(SM_I(sbi)->sit_info);
1288 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1290 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1293 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1295 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1298 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1300 return sbi->meta_inode->i_mapping;
1303 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1305 return sbi->node_inode->i_mapping;
1308 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1310 return test_bit(type, &sbi->s_flag);
1313 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1315 set_bit(type, &sbi->s_flag);
1318 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1320 clear_bit(type, &sbi->s_flag);
1323 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1325 return le64_to_cpu(cp->checkpoint_ver);
1328 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1330 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1331 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1334 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1336 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1338 return ckpt_flags & f;
1341 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1343 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1346 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1348 unsigned int ckpt_flags;
1350 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1352 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1355 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1357 unsigned long flags;
1359 spin_lock_irqsave(&sbi->cp_lock, flags);
1360 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1361 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1364 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1366 unsigned int ckpt_flags;
1368 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1370 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1373 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1375 unsigned long flags;
1377 spin_lock_irqsave(&sbi->cp_lock, flags);
1378 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1379 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1382 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1384 unsigned long flags;
1386 set_sbi_flag(sbi, SBI_NEED_FSCK);
1389 spin_lock_irqsave(&sbi->cp_lock, flags);
1390 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1391 kfree(NM_I(sbi)->nat_bits);
1392 NM_I(sbi)->nat_bits = NULL;
1394 spin_unlock_irqrestore(&sbi->cp_lock, flags);
1397 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1398 struct cp_control *cpc)
1400 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1402 return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
1405 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1407 down_read(&sbi->cp_rwsem);
1410 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
1412 return down_read_trylock(&sbi->cp_rwsem);
1415 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1417 up_read(&sbi->cp_rwsem);
1420 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1422 down_write(&sbi->cp_rwsem);
1425 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1427 up_write(&sbi->cp_rwsem);
1430 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1432 int reason = CP_SYNC;
1434 if (test_opt(sbi, FASTBOOT))
1435 reason = CP_FASTBOOT;
1436 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1441 static inline bool __remain_node_summaries(int reason)
1443 return (reason & (CP_UMOUNT | CP_FASTBOOT));
1446 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1448 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1449 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1453 * Check whether the given nid is within node id range.
1455 static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
1457 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1459 if (unlikely(nid >= NM_I(sbi)->max_nid))
1465 * Check whether the inode has blocks or not
1467 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1469 block_t xattr_block = F2FS_I(inode)->i_xattr_nid ? 1 : 0;
1471 return (inode->i_blocks >> F2FS_LOG_SECTORS_PER_BLOCK) > xattr_block;
1474 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1476 return ofs == XATTR_NODE_OFFSET;
1479 static inline void f2fs_i_blocks_write(struct inode *, block_t, bool, bool);
1480 static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
1481 struct inode *inode, blkcnt_t *count)
1483 blkcnt_t diff = 0, release = 0;
1484 block_t avail_user_block_count;
1487 ret = dquot_reserve_block(inode, *count);
1491 #ifdef CONFIG_F2FS_FAULT_INJECTION
1492 if (time_to_inject(sbi, FAULT_BLOCK)) {
1493 f2fs_show_injection_info(FAULT_BLOCK);
1499 * let's increase this in prior to actual block count change in order
1500 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1502 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1504 spin_lock(&sbi->stat_lock);
1505 sbi->total_valid_block_count += (block_t)(*count);
1506 avail_user_block_count = sbi->user_block_count - sbi->reserved_blocks;
1507 if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
1508 diff = sbi->total_valid_block_count - avail_user_block_count;
1511 sbi->total_valid_block_count = avail_user_block_count;
1513 spin_unlock(&sbi->stat_lock);
1514 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
1518 spin_unlock(&sbi->stat_lock);
1521 dquot_release_reservation_block(inode, release);
1522 f2fs_i_blocks_write(inode, *count, true, true);
1526 dquot_release_reservation_block(inode, release);
1530 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1531 struct inode *inode,
1534 blkcnt_t sectors = count << F2FS_LOG_SECTORS_PER_BLOCK;
1536 spin_lock(&sbi->stat_lock);
1537 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1538 f2fs_bug_on(sbi, inode->i_blocks < sectors);
1539 sbi->total_valid_block_count -= (block_t)count;
1540 spin_unlock(&sbi->stat_lock);
1541 f2fs_i_blocks_write(inode, count, false, true);
1544 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1546 atomic_inc(&sbi->nr_pages[count_type]);
1548 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1549 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1552 set_sbi_flag(sbi, SBI_IS_DIRTY);
1555 static inline void inode_inc_dirty_pages(struct inode *inode)
1557 atomic_inc(&F2FS_I(inode)->dirty_pages);
1558 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1559 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1562 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1564 atomic_dec(&sbi->nr_pages[count_type]);
1567 static inline void inode_dec_dirty_pages(struct inode *inode)
1569 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1570 !S_ISLNK(inode->i_mode))
1573 atomic_dec(&F2FS_I(inode)->dirty_pages);
1574 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1575 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1578 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1580 return atomic_read(&sbi->nr_pages[count_type]);
1583 static inline int get_dirty_pages(struct inode *inode)
1585 return atomic_read(&F2FS_I(inode)->dirty_pages);
1588 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1590 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1591 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1592 sbi->log_blocks_per_seg;
1594 return segs / sbi->segs_per_sec;
1597 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1599 return sbi->total_valid_block_count;
1602 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1604 return sbi->discard_blks;
1607 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1609 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1611 /* return NAT or SIT bitmap */
1612 if (flag == NAT_BITMAP)
1613 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1614 else if (flag == SIT_BITMAP)
1615 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1620 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1622 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1625 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1627 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1630 if (__cp_payload(sbi) > 0) {
1631 if (flag == NAT_BITMAP)
1632 return &ckpt->sit_nat_version_bitmap;
1634 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1636 offset = (flag == NAT_BITMAP) ?
1637 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1638 return &ckpt->sit_nat_version_bitmap + offset;
1642 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1644 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1646 if (sbi->cur_cp_pack == 2)
1647 start_addr += sbi->blocks_per_seg;
1651 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1653 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1655 if (sbi->cur_cp_pack == 1)
1656 start_addr += sbi->blocks_per_seg;
1660 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1662 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1665 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1667 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1670 static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
1671 struct inode *inode, bool is_inode)
1673 block_t valid_block_count;
1674 unsigned int valid_node_count;
1675 bool quota = inode && !is_inode;
1678 int ret = dquot_reserve_block(inode, 1);
1683 spin_lock(&sbi->stat_lock);
1685 valid_block_count = sbi->total_valid_block_count + 1;
1686 if (unlikely(valid_block_count + sbi->reserved_blocks >
1687 sbi->user_block_count)) {
1688 spin_unlock(&sbi->stat_lock);
1692 valid_node_count = sbi->total_valid_node_count + 1;
1693 if (unlikely(valid_node_count > sbi->total_node_count)) {
1694 spin_unlock(&sbi->stat_lock);
1698 sbi->total_valid_node_count++;
1699 sbi->total_valid_block_count++;
1700 spin_unlock(&sbi->stat_lock);
1704 f2fs_mark_inode_dirty_sync(inode, true);
1706 f2fs_i_blocks_write(inode, 1, true, true);
1709 percpu_counter_inc(&sbi->alloc_valid_block_count);
1714 dquot_release_reservation_block(inode, 1);
1718 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1719 struct inode *inode, bool is_inode)
1721 spin_lock(&sbi->stat_lock);
1723 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1724 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1725 f2fs_bug_on(sbi, !is_inode && !inode->i_blocks);
1727 sbi->total_valid_node_count--;
1728 sbi->total_valid_block_count--;
1730 spin_unlock(&sbi->stat_lock);
1733 f2fs_i_blocks_write(inode, 1, false, true);
1736 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1738 return sbi->total_valid_node_count;
1741 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1743 percpu_counter_inc(&sbi->total_valid_inode_count);
1746 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1748 percpu_counter_dec(&sbi->total_valid_inode_count);
1751 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1753 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1756 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1757 pgoff_t index, bool for_write)
1759 #ifdef CONFIG_F2FS_FAULT_INJECTION
1760 struct page *page = find_lock_page(mapping, index);
1765 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1766 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
1771 return grab_cache_page(mapping, index);
1772 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1775 static inline void f2fs_copy_page(struct page *src, struct page *dst)
1777 char *src_kaddr = kmap(src);
1778 char *dst_kaddr = kmap(dst);
1780 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1785 static inline void f2fs_put_page(struct page *page, int unlock)
1791 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
1797 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1800 f2fs_put_page(dn->node_page, 1);
1801 if (dn->inode_page && dn->node_page != dn->inode_page)
1802 f2fs_put_page(dn->inode_page, 0);
1803 dn->node_page = NULL;
1804 dn->inode_page = NULL;
1807 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
1810 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
1813 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1818 entry = kmem_cache_alloc(cachep, flags);
1820 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
1824 static inline struct bio *f2fs_bio_alloc(int npages)
1828 /* No failure on bio allocation */
1829 bio = bio_alloc(GFP_NOIO, npages);
1831 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
1835 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1836 unsigned long index, void *item)
1838 while (radix_tree_insert(root, index, item))
1842 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1844 static inline bool IS_INODE(struct page *page)
1846 struct f2fs_node *p = F2FS_NODE(page);
1848 return RAW_IS_INODE(p);
1851 static inline int offset_in_addr(struct f2fs_inode *i)
1853 return (i->i_inline & F2FS_EXTRA_ATTR) ?
1854 (le16_to_cpu(i->i_extra_isize) / sizeof(__le32)) : 0;
1857 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1859 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1862 static inline int f2fs_has_extra_attr(struct inode *inode);
1863 static inline block_t datablock_addr(struct inode *inode,
1864 struct page *node_page, unsigned int offset)
1866 struct f2fs_node *raw_node;
1869 bool is_inode = IS_INODE(node_page);
1871 raw_node = F2FS_NODE(node_page);
1873 /* from GC path only */
1876 base = offset_in_addr(&raw_node->i);
1877 } else if (f2fs_has_extra_attr(inode) && is_inode) {
1878 base = get_extra_isize(inode);
1881 addr_array = blkaddr_in_node(raw_node);
1882 return le32_to_cpu(addr_array[base + offset]);
1885 static inline int f2fs_test_bit(unsigned int nr, char *addr)
1890 mask = 1 << (7 - (nr & 0x07));
1891 return mask & *addr;
1894 static inline void f2fs_set_bit(unsigned int nr, char *addr)
1899 mask = 1 << (7 - (nr & 0x07));
1903 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1908 mask = 1 << (7 - (nr & 0x07));
1912 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
1918 mask = 1 << (7 - (nr & 0x07));
1924 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
1930 mask = 1 << (7 - (nr & 0x07));
1936 static inline void f2fs_change_bit(unsigned int nr, char *addr)
1941 mask = 1 << (7 - (nr & 0x07));
1945 #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
1946 #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
1947 #define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
1949 static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
1953 else if (S_ISREG(mode))
1954 return flags & F2FS_REG_FLMASK;
1956 return flags & F2FS_OTHER_FLMASK;
1959 /* used for f2fs_inode_info->flags */
1961 FI_NEW_INODE, /* indicate newly allocated inode */
1962 FI_DIRTY_INODE, /* indicate inode is dirty or not */
1963 FI_AUTO_RECOVER, /* indicate inode is recoverable */
1964 FI_DIRTY_DIR, /* indicate directory has dirty pages */
1965 FI_INC_LINK, /* need to increment i_nlink */
1966 FI_ACL_MODE, /* indicate acl mode */
1967 FI_NO_ALLOC, /* should not allocate any blocks */
1968 FI_FREE_NID, /* free allocated nide */
1969 FI_NO_EXTENT, /* not to use the extent cache */
1970 FI_INLINE_XATTR, /* used for inline xattr */
1971 FI_INLINE_DATA, /* used for inline data*/
1972 FI_INLINE_DENTRY, /* used for inline dentry */
1973 FI_APPEND_WRITE, /* inode has appended data */
1974 FI_UPDATE_WRITE, /* inode has in-place-update data */
1975 FI_NEED_IPU, /* used for ipu per file */
1976 FI_ATOMIC_FILE, /* indicate atomic file */
1977 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
1978 FI_VOLATILE_FILE, /* indicate volatile file */
1979 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1980 FI_DROP_CACHE, /* drop dirty page cache */
1981 FI_DATA_EXIST, /* indicate data exists */
1982 FI_INLINE_DOTS, /* indicate inline dot dentries */
1983 FI_DO_DEFRAG, /* indicate defragment is running */
1984 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
1985 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
1986 FI_HOT_DATA, /* indicate file is hot */
1987 FI_EXTRA_ATTR, /* indicate file has extra attribute */
1988 FI_PROJ_INHERIT, /* indicate file inherits projectid */
1991 static inline void __mark_inode_dirty_flag(struct inode *inode,
1995 case FI_INLINE_XATTR:
1996 case FI_INLINE_DATA:
1997 case FI_INLINE_DENTRY:
2001 case FI_INLINE_DOTS:
2002 f2fs_mark_inode_dirty_sync(inode, true);
2006 static inline void set_inode_flag(struct inode *inode, int flag)
2008 if (!test_bit(flag, &F2FS_I(inode)->flags))
2009 set_bit(flag, &F2FS_I(inode)->flags);
2010 __mark_inode_dirty_flag(inode, flag, true);
2013 static inline int is_inode_flag_set(struct inode *inode, int flag)
2015 return test_bit(flag, &F2FS_I(inode)->flags);
2018 static inline void clear_inode_flag(struct inode *inode, int flag)
2020 if (test_bit(flag, &F2FS_I(inode)->flags))
2021 clear_bit(flag, &F2FS_I(inode)->flags);
2022 __mark_inode_dirty_flag(inode, flag, false);
2025 static inline void set_acl_inode(struct inode *inode, umode_t mode)
2027 F2FS_I(inode)->i_acl_mode = mode;
2028 set_inode_flag(inode, FI_ACL_MODE);
2029 f2fs_mark_inode_dirty_sync(inode, false);
2032 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
2038 f2fs_mark_inode_dirty_sync(inode, true);
2041 static inline void f2fs_i_blocks_write(struct inode *inode,
2042 block_t diff, bool add, bool claim)
2044 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2045 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2047 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2050 dquot_claim_block(inode, diff);
2052 dquot_alloc_block_nofail(inode, diff);
2054 dquot_free_block(inode, diff);
2057 f2fs_mark_inode_dirty_sync(inode, true);
2058 if (clean || recover)
2059 set_inode_flag(inode, FI_AUTO_RECOVER);
2062 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
2064 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
2065 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
2067 if (i_size_read(inode) == i_size)
2070 i_size_write(inode, i_size);
2071 f2fs_mark_inode_dirty_sync(inode, true);
2072 if (clean || recover)
2073 set_inode_flag(inode, FI_AUTO_RECOVER);
2076 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
2078 F2FS_I(inode)->i_current_depth = depth;
2079 f2fs_mark_inode_dirty_sync(inode, true);
2082 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
2084 F2FS_I(inode)->i_xattr_nid = xnid;
2085 f2fs_mark_inode_dirty_sync(inode, true);
2088 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
2090 F2FS_I(inode)->i_pino = pino;
2091 f2fs_mark_inode_dirty_sync(inode, true);
2094 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
2096 struct f2fs_inode_info *fi = F2FS_I(inode);
2098 if (ri->i_inline & F2FS_INLINE_XATTR)
2099 set_bit(FI_INLINE_XATTR, &fi->flags);
2100 if (ri->i_inline & F2FS_INLINE_DATA)
2101 set_bit(FI_INLINE_DATA, &fi->flags);
2102 if (ri->i_inline & F2FS_INLINE_DENTRY)
2103 set_bit(FI_INLINE_DENTRY, &fi->flags);
2104 if (ri->i_inline & F2FS_DATA_EXIST)
2105 set_bit(FI_DATA_EXIST, &fi->flags);
2106 if (ri->i_inline & F2FS_INLINE_DOTS)
2107 set_bit(FI_INLINE_DOTS, &fi->flags);
2108 if (ri->i_inline & F2FS_EXTRA_ATTR)
2109 set_bit(FI_EXTRA_ATTR, &fi->flags);
2112 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
2116 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
2117 ri->i_inline |= F2FS_INLINE_XATTR;
2118 if (is_inode_flag_set(inode, FI_INLINE_DATA))
2119 ri->i_inline |= F2FS_INLINE_DATA;
2120 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
2121 ri->i_inline |= F2FS_INLINE_DENTRY;
2122 if (is_inode_flag_set(inode, FI_DATA_EXIST))
2123 ri->i_inline |= F2FS_DATA_EXIST;
2124 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
2125 ri->i_inline |= F2FS_INLINE_DOTS;
2126 if (is_inode_flag_set(inode, FI_EXTRA_ATTR))
2127 ri->i_inline |= F2FS_EXTRA_ATTR;
2130 static inline int f2fs_has_extra_attr(struct inode *inode)
2132 return is_inode_flag_set(inode, FI_EXTRA_ATTR);
2135 static inline int f2fs_has_inline_xattr(struct inode *inode)
2137 return is_inode_flag_set(inode, FI_INLINE_XATTR);
2140 static inline unsigned int addrs_per_inode(struct inode *inode)
2142 if (f2fs_has_inline_xattr(inode))
2143 return CUR_ADDRS_PER_INODE(inode) - F2FS_INLINE_XATTR_ADDRS;
2144 return CUR_ADDRS_PER_INODE(inode);
2147 static inline void *inline_xattr_addr(struct page *page)
2149 struct f2fs_inode *ri = F2FS_INODE(page);
2151 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
2152 F2FS_INLINE_XATTR_ADDRS]);
2155 static inline int inline_xattr_size(struct inode *inode)
2157 if (f2fs_has_inline_xattr(inode))
2158 return F2FS_INLINE_XATTR_ADDRS << 2;
2163 static inline int f2fs_has_inline_data(struct inode *inode)
2165 return is_inode_flag_set(inode, FI_INLINE_DATA);
2168 static inline int f2fs_exist_data(struct inode *inode)
2170 return is_inode_flag_set(inode, FI_DATA_EXIST);
2173 static inline int f2fs_has_inline_dots(struct inode *inode)
2175 return is_inode_flag_set(inode, FI_INLINE_DOTS);
2178 static inline bool f2fs_is_atomic_file(struct inode *inode)
2180 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
2183 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
2185 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
2188 static inline bool f2fs_is_volatile_file(struct inode *inode)
2190 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
2193 static inline bool f2fs_is_first_block_written(struct inode *inode)
2195 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
2198 static inline bool f2fs_is_drop_cache(struct inode *inode)
2200 return is_inode_flag_set(inode, FI_DROP_CACHE);
2203 static inline void *inline_data_addr(struct inode *inode, struct page *page)
2205 struct f2fs_inode *ri = F2FS_INODE(page);
2206 int extra_size = get_extra_isize(inode);
2208 return (void *)&(ri->i_addr[extra_size + DEF_INLINE_RESERVED_SIZE]);
2211 static inline int f2fs_has_inline_dentry(struct inode *inode)
2213 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
2216 static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
2218 if (!f2fs_has_inline_dentry(dir))
2222 static inline int is_file(struct inode *inode, int type)
2224 return F2FS_I(inode)->i_advise & type;
2227 static inline void set_file(struct inode *inode, int type)
2229 F2FS_I(inode)->i_advise |= type;
2230 f2fs_mark_inode_dirty_sync(inode, true);
2233 static inline void clear_file(struct inode *inode, int type)
2235 F2FS_I(inode)->i_advise &= ~type;
2236 f2fs_mark_inode_dirty_sync(inode, true);
2239 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
2242 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2245 spin_lock(&sbi->inode_lock[DIRTY_META]);
2246 ret = list_empty(&F2FS_I(inode)->gdirty_list);
2247 spin_unlock(&sbi->inode_lock[DIRTY_META]);
2250 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
2251 file_keep_isize(inode) ||
2252 i_size_read(inode) & PAGE_MASK)
2254 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
2257 static inline int f2fs_readonly(struct super_block *sb)
2259 return sb->s_flags & MS_RDONLY;
2262 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
2264 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
2267 static inline bool is_dot_dotdot(const struct qstr *str)
2269 if (str->len == 1 && str->name[0] == '.')
2272 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
2278 static inline bool f2fs_may_extent_tree(struct inode *inode)
2280 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
2281 is_inode_flag_set(inode, FI_NO_EXTENT))
2284 return S_ISREG(inode->i_mode);
2287 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
2288 size_t size, gfp_t flags)
2290 #ifdef CONFIG_F2FS_FAULT_INJECTION
2291 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2292 f2fs_show_injection_info(FAULT_KMALLOC);
2296 return kmalloc(size, flags);
2299 static inline int get_extra_isize(struct inode *inode)
2301 return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
2304 #define get_inode_mode(i) \
2305 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2306 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2308 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2309 (offsetof(struct f2fs_inode, i_extra_end) - \
2310 offsetof(struct f2fs_inode, i_extra_isize)) \
2312 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2313 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2314 ((offsetof(typeof(*f2fs_inode), field) + \
2315 sizeof((f2fs_inode)->field)) \
2316 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2318 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2322 spin_lock(&sbi->iostat_lock);
2323 for (i = 0; i < NR_IO_TYPE; i++)
2324 sbi->write_iostat[i] = 0;
2325 spin_unlock(&sbi->iostat_lock);
2328 static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
2329 enum iostat_type type, unsigned long long io_bytes)
2331 if (!sbi->iostat_enable)
2333 spin_lock(&sbi->iostat_lock);
2334 sbi->write_iostat[type] += io_bytes;
2336 if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
2337 sbi->write_iostat[APP_BUFFERED_IO] =
2338 sbi->write_iostat[APP_WRITE_IO] -
2339 sbi->write_iostat[APP_DIRECT_IO];
2340 spin_unlock(&sbi->iostat_lock);
2346 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2347 void truncate_data_blocks(struct dnode_of_data *dn);
2348 int truncate_blocks(struct inode *inode, u64 from, bool lock);
2349 int f2fs_truncate(struct inode *inode);
2350 int f2fs_getattr(const struct path *path, struct kstat *stat,
2351 u32 request_mask, unsigned int flags);
2352 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2353 int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2354 int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2355 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2356 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2361 void f2fs_set_inode_flags(struct inode *inode);
2362 bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page);
2363 void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page);
2364 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2365 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2366 int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2367 int update_inode(struct inode *inode, struct page *node_page);
2368 int update_inode_page(struct inode *inode);
2369 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2370 void f2fs_evict_inode(struct inode *inode);
2371 void handle_failed_inode(struct inode *inode);
2376 struct dentry *f2fs_get_parent(struct dentry *child);
2381 void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2382 unsigned char get_de_type(struct f2fs_dir_entry *de);
2383 struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2384 f2fs_hash_t namehash, int *max_slots,
2385 struct f2fs_dentry_ptr *d);
2386 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2387 unsigned int start_pos, struct fscrypt_str *fstr);
2388 void do_make_empty_dir(struct inode *inode, struct inode *parent,
2389 struct f2fs_dentry_ptr *d);
2390 struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2391 const struct qstr *new_name,
2392 const struct qstr *orig_name, struct page *dpage);
2393 void update_parent_metadata(struct inode *dir, struct inode *inode,
2394 unsigned int current_depth);
2395 int room_for_filename(const void *bitmap, int slots, int max_slots);
2396 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2397 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2398 struct fscrypt_name *fname, struct page **res_page);
2399 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2400 const struct qstr *child, struct page **res_page);
2401 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2402 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2403 struct page **page);
2404 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2405 struct page *page, struct inode *inode);
2406 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2407 const struct qstr *name, f2fs_hash_t name_hash,
2408 unsigned int bit_pos);
2409 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2410 const struct qstr *orig_name,
2411 struct inode *inode, nid_t ino, umode_t mode);
2412 int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2413 struct inode *inode, nid_t ino, umode_t mode);
2414 int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2415 struct inode *inode, nid_t ino, umode_t mode);
2416 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2417 struct inode *dir, struct inode *inode);
2418 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2419 bool f2fs_empty_dir(struct inode *dir);
2421 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2423 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2424 inode, inode->i_ino, inode->i_mode);
2430 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2431 void f2fs_inode_synced(struct inode *inode);
2432 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2433 int f2fs_sync_fs(struct super_block *sb, int sync);
2434 extern __printf(3, 4)
2435 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2436 int sanity_check_ckpt(struct f2fs_sb_info *sbi);
2441 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
2442 struct fscrypt_name *fname);
2447 struct dnode_of_data;
2450 bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2451 int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2452 bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2453 bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2454 void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2455 pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2456 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2457 int truncate_inode_blocks(struct inode *inode, pgoff_t from);
2458 int truncate_xattr_node(struct inode *inode, struct page *page);
2459 int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2460 int remove_inode_page(struct inode *inode);
2461 struct page *new_inode_page(struct inode *inode);
2462 struct page *new_node_page(struct dnode_of_data *dn, unsigned int ofs);
2463 void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2464 struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2465 struct page *get_node_page_ra(struct page *parent, int start);
2466 void move_node_page(struct page *node_page, int gc_type);
2467 int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2468 struct writeback_control *wbc, bool atomic);
2469 int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc,
2470 bool do_balance, enum iostat_type io_type);
2471 void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2472 bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2473 void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2474 void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2475 int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2476 void recover_inline_xattr(struct inode *inode, struct page *page);
2477 int recover_xattr_data(struct inode *inode, struct page *page,
2479 int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2480 int restore_node_summary(struct f2fs_sb_info *sbi,
2481 unsigned int segno, struct f2fs_summary_block *sum);
2482 void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2483 int build_node_manager(struct f2fs_sb_info *sbi);
2484 void destroy_node_manager(struct f2fs_sb_info *sbi);
2485 int __init create_node_manager_caches(void);
2486 void destroy_node_manager_caches(void);
2491 void register_inmem_page(struct inode *inode, struct page *page);
2492 void drop_inmem_pages(struct inode *inode);
2493 void drop_inmem_page(struct inode *inode, struct page *page);
2494 int commit_inmem_pages(struct inode *inode);
2495 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2496 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2497 int f2fs_issue_flush(struct f2fs_sb_info *sbi);
2498 int create_flush_cmd_control(struct f2fs_sb_info *sbi);
2499 void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2500 void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2501 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2502 void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
2503 void stop_discard_thread(struct f2fs_sb_info *sbi);
2504 void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
2505 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2506 void release_discard_addrs(struct f2fs_sb_info *sbi);
2507 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2508 void allocate_new_segments(struct f2fs_sb_info *sbi);
2509 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2510 bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2511 struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2512 void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
2513 void write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
2514 enum iostat_type io_type);
2515 void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2516 void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
2517 int rewrite_data_page(struct f2fs_io_info *fio);
2518 void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2519 block_t old_blkaddr, block_t new_blkaddr,
2520 bool recover_curseg, bool recover_newaddr);
2521 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2522 block_t old_addr, block_t new_addr,
2523 unsigned char version, bool recover_curseg,
2524 bool recover_newaddr);
2525 void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2526 block_t old_blkaddr, block_t *new_blkaddr,
2527 struct f2fs_summary *sum, int type,
2528 struct f2fs_io_info *fio, bool add_list);
2529 void f2fs_wait_on_page_writeback(struct page *page,
2530 enum page_type type, bool ordered);
2531 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi,
2533 void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2534 void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2535 int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2536 unsigned int val, int alloc);
2537 void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2538 int build_segment_manager(struct f2fs_sb_info *sbi);
2539 void destroy_segment_manager(struct f2fs_sb_info *sbi);
2540 int __init create_segment_manager_caches(void);
2541 void destroy_segment_manager_caches(void);
2546 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2547 struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2548 struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2549 struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2550 bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2551 int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2552 int type, bool sync);
2553 void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2554 long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2555 long nr_to_write, enum iostat_type io_type);
2556 void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2557 void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2558 void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2559 bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2560 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2561 int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2562 void release_orphan_inode(struct f2fs_sb_info *sbi);
2563 void add_orphan_inode(struct inode *inode);
2564 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2565 int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2566 int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2567 void update_dirty_page(struct inode *inode, struct page *page);
2568 void remove_dirty_inode(struct inode *inode);
2569 int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2570 int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2571 void init_ino_entry_info(struct f2fs_sb_info *sbi);
2572 int __init create_checkpoint_caches(void);
2573 void destroy_checkpoint_caches(void);
2578 void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
2579 void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
2580 struct inode *inode, nid_t ino, pgoff_t idx,
2581 enum page_type type);
2582 void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi);
2583 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2584 int f2fs_submit_page_write(struct f2fs_io_info *fio);
2585 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2586 block_t blk_addr, struct bio *bio);
2587 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2588 void set_data_blkaddr(struct dnode_of_data *dn);
2589 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2590 int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2591 int reserve_new_block(struct dnode_of_data *dn);
2592 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2593 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2594 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2595 struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2596 int op_flags, bool for_write);
2597 struct page *find_data_page(struct inode *inode, pgoff_t index);
2598 struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2600 struct page *get_new_data_page(struct inode *inode,
2601 struct page *ipage, pgoff_t index, bool new_i_size);
2602 int do_write_data_page(struct f2fs_io_info *fio);
2603 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2604 int create, int flag);
2605 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2606 u64 start, u64 len);
2607 void f2fs_set_page_dirty_nobuffers(struct page *page);
2608 int __f2fs_write_data_pages(struct address_space *mapping,
2609 struct writeback_control *wbc,
2610 enum iostat_type io_type);
2611 void f2fs_invalidate_page(struct page *page, unsigned int offset,
2612 unsigned int length);
2613 int f2fs_release_page(struct page *page, gfp_t wait);
2614 #ifdef CONFIG_MIGRATION
2615 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2616 struct page *page, enum migrate_mode mode);
2622 int start_gc_thread(struct f2fs_sb_info *sbi);
2623 void stop_gc_thread(struct f2fs_sb_info *sbi);
2624 block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
2625 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background,
2626 unsigned int segno);
2627 void build_gc_manager(struct f2fs_sb_info *sbi);
2632 int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2633 bool space_for_roll_forward(struct f2fs_sb_info *sbi);
2638 #ifdef CONFIG_F2FS_STAT_FS
2639 struct f2fs_stat_info {
2640 struct list_head stat_list;
2641 struct f2fs_sb_info *sbi;
2642 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2643 int main_area_segs, main_area_sections, main_area_zones;
2644 unsigned long long hit_largest, hit_cached, hit_rbtree;
2645 unsigned long long hit_total, total_ext;
2646 int ext_tree, zombie_tree, ext_node;
2647 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2649 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
2650 int nats, dirty_nats, sits, dirty_sits;
2651 int free_nids, avail_nids, alloc_nids;
2652 int total_count, utilization;
2653 int bg_gc, nr_wb_cp_data, nr_wb_data;
2654 int nr_flushing, nr_flushed, nr_discarding, nr_discarded;
2656 unsigned int undiscard_blks;
2657 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
2658 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
2659 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
2660 unsigned int bimodal, avg_vblocks;
2661 int util_free, util_valid, util_invalid;
2662 int rsvd_segs, overp_segs;
2663 int dirty_count, node_pages, meta_pages;
2664 int prefree_count, call_count, cp_count, bg_cp_count;
2665 int tot_segs, node_segs, data_segs, free_segs, free_secs;
2666 int bg_node_segs, bg_data_segs;
2667 int tot_blks, data_blks, node_blks;
2668 int bg_data_blks, bg_node_blks;
2669 int curseg[NR_CURSEG_TYPE];
2670 int cursec[NR_CURSEG_TYPE];
2671 int curzone[NR_CURSEG_TYPE];
2673 unsigned int segment_count[2];
2674 unsigned int block_count[2];
2675 unsigned int inplace_count;
2676 unsigned long long base_mem, cache_mem, page_mem;
2679 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2681 return (struct f2fs_stat_info *)sbi->stat_info;
2684 #define stat_inc_cp_count(si) ((si)->cp_count++)
2685 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2686 #define stat_inc_call_count(si) ((si)->call_count++)
2687 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2688 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2689 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2690 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2691 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2692 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2693 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2694 #define stat_inc_inline_xattr(inode) \
2696 if (f2fs_has_inline_xattr(inode)) \
2697 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2699 #define stat_dec_inline_xattr(inode) \
2701 if (f2fs_has_inline_xattr(inode)) \
2702 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2704 #define stat_inc_inline_inode(inode) \
2706 if (f2fs_has_inline_data(inode)) \
2707 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2709 #define stat_dec_inline_inode(inode) \
2711 if (f2fs_has_inline_data(inode)) \
2712 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2714 #define stat_inc_inline_dir(inode) \
2716 if (f2fs_has_inline_dentry(inode)) \
2717 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2719 #define stat_dec_inline_dir(inode) \
2721 if (f2fs_has_inline_dentry(inode)) \
2722 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2724 #define stat_inc_seg_type(sbi, curseg) \
2725 ((sbi)->segment_count[(curseg)->alloc_type]++)
2726 #define stat_inc_block_count(sbi, curseg) \
2727 ((sbi)->block_count[(curseg)->alloc_type]++)
2728 #define stat_inc_inplace_blocks(sbi) \
2729 (atomic_inc(&(sbi)->inplace_count))
2730 #define stat_inc_atomic_write(inode) \
2731 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2732 #define stat_dec_atomic_write(inode) \
2733 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2734 #define stat_update_max_atomic_write(inode) \
2736 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2737 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2739 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2741 #define stat_inc_volatile_write(inode) \
2742 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2743 #define stat_dec_volatile_write(inode) \
2744 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2745 #define stat_update_max_volatile_write(inode) \
2747 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2748 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2750 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2752 #define stat_inc_seg_count(sbi, type, gc_type) \
2754 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2756 if ((type) == SUM_TYPE_DATA) { \
2758 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2761 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2765 #define stat_inc_tot_blk_count(si, blks) \
2766 ((si)->tot_blks += (blks))
2768 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2770 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2771 stat_inc_tot_blk_count(si, blks); \
2772 si->data_blks += (blks); \
2773 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2776 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2778 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2779 stat_inc_tot_blk_count(si, blks); \
2780 si->node_blks += (blks); \
2781 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2784 int f2fs_build_stats(struct f2fs_sb_info *sbi);
2785 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
2786 int __init f2fs_create_root_stats(void);
2787 void f2fs_destroy_root_stats(void);
2789 #define stat_inc_cp_count(si) do { } while (0)
2790 #define stat_inc_bg_cp_count(si) do { } while (0)
2791 #define stat_inc_call_count(si) do { } while (0)
2792 #define stat_inc_bggc_count(si) do { } while (0)
2793 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
2794 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
2795 #define stat_inc_total_hit(sb) do { } while (0)
2796 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
2797 #define stat_inc_largest_node_hit(sbi) do { } while (0)
2798 #define stat_inc_cached_node_hit(sbi) do { } while (0)
2799 #define stat_inc_inline_xattr(inode) do { } while (0)
2800 #define stat_dec_inline_xattr(inode) do { } while (0)
2801 #define stat_inc_inline_inode(inode) do { } while (0)
2802 #define stat_dec_inline_inode(inode) do { } while (0)
2803 #define stat_inc_inline_dir(inode) do { } while (0)
2804 #define stat_dec_inline_dir(inode) do { } while (0)
2805 #define stat_inc_atomic_write(inode) do { } while (0)
2806 #define stat_dec_atomic_write(inode) do { } while (0)
2807 #define stat_update_max_atomic_write(inode) do { } while (0)
2808 #define stat_inc_volatile_write(inode) do { } while (0)
2809 #define stat_dec_volatile_write(inode) do { } while (0)
2810 #define stat_update_max_volatile_write(inode) do { } while (0)
2811 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
2812 #define stat_inc_block_count(sbi, curseg) do { } while (0)
2813 #define stat_inc_inplace_blocks(sbi) do { } while (0)
2814 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2815 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
2816 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2817 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
2819 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2820 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
2821 static inline int __init f2fs_create_root_stats(void) { return 0; }
2822 static inline void f2fs_destroy_root_stats(void) { }
2825 extern const struct file_operations f2fs_dir_operations;
2826 extern const struct file_operations f2fs_file_operations;
2827 extern const struct inode_operations f2fs_file_inode_operations;
2828 extern const struct address_space_operations f2fs_dblock_aops;
2829 extern const struct address_space_operations f2fs_node_aops;
2830 extern const struct address_space_operations f2fs_meta_aops;
2831 extern const struct inode_operations f2fs_dir_inode_operations;
2832 extern const struct inode_operations f2fs_symlink_inode_operations;
2833 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
2834 extern const struct inode_operations f2fs_special_inode_operations;
2835 extern struct kmem_cache *inode_entry_slab;
2840 bool f2fs_may_inline_data(struct inode *inode);
2841 bool f2fs_may_inline_dentry(struct inode *inode);
2842 void read_inline_data(struct page *page, struct page *ipage);
2843 void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from);
2844 int f2fs_read_inline_data(struct inode *inode, struct page *page);
2845 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
2846 int f2fs_convert_inline_inode(struct inode *inode);
2847 int f2fs_write_inline_data(struct inode *inode, struct page *page);
2848 bool recover_inline_data(struct inode *inode, struct page *npage);
2849 struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
2850 struct fscrypt_name *fname, struct page **res_page);
2851 int make_empty_inline_dir(struct inode *inode, struct inode *parent,
2852 struct page *ipage);
2853 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
2854 const struct qstr *orig_name,
2855 struct inode *inode, nid_t ino, umode_t mode);
2856 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
2857 struct inode *dir, struct inode *inode);
2858 bool f2fs_empty_inline_dir(struct inode *dir);
2859 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
2860 struct fscrypt_str *fstr);
2861 int f2fs_inline_data_fiemap(struct inode *inode,
2862 struct fiemap_extent_info *fieinfo,
2863 __u64 start, __u64 len);
2868 unsigned long f2fs_shrink_count(struct shrinker *shrink,
2869 struct shrink_control *sc);
2870 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
2871 struct shrink_control *sc);
2872 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
2873 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
2878 struct rb_entry *__lookup_rb_tree(struct rb_root *root,
2879 struct rb_entry *cached_re, unsigned int ofs);
2880 struct rb_node **__lookup_rb_tree_for_insert(struct f2fs_sb_info *sbi,
2881 struct rb_root *root, struct rb_node **parent,
2883 struct rb_entry *__lookup_rb_tree_ret(struct rb_root *root,
2884 struct rb_entry *cached_re, unsigned int ofs,
2885 struct rb_entry **prev_entry, struct rb_entry **next_entry,
2886 struct rb_node ***insert_p, struct rb_node **insert_parent,
2888 bool __check_rb_tree_consistence(struct f2fs_sb_info *sbi,
2889 struct rb_root *root);
2890 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
2891 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
2892 void f2fs_drop_extent_tree(struct inode *inode);
2893 unsigned int f2fs_destroy_extent_node(struct inode *inode);
2894 void f2fs_destroy_extent_tree(struct inode *inode);
2895 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
2896 struct extent_info *ei);
2897 void f2fs_update_extent_cache(struct dnode_of_data *dn);
2898 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2899 pgoff_t fofs, block_t blkaddr, unsigned int len);
2900 void init_extent_cache_info(struct f2fs_sb_info *sbi);
2901 int __init create_extent_cache(void);
2902 void destroy_extent_cache(void);
2907 int __init f2fs_init_sysfs(void);
2908 void f2fs_exit_sysfs(void);
2909 int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
2910 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi);
2915 static inline bool f2fs_encrypted_inode(struct inode *inode)
2917 return file_is_encrypt(inode);
2920 static inline void f2fs_set_encrypted_inode(struct inode *inode)
2922 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2923 file_set_encrypt(inode);
2927 static inline bool f2fs_bio_encrypted(struct bio *bio)
2929 return bio->bi_private != NULL;
2932 static inline int f2fs_sb_has_crypto(struct super_block *sb)
2934 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
2937 static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
2939 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
2942 static inline int f2fs_sb_has_extra_attr(struct super_block *sb)
2944 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_EXTRA_ATTR);
2947 static inline int f2fs_sb_has_project_quota(struct super_block *sb)
2949 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_PRJQUOTA);
2952 static inline int f2fs_sb_has_inode_chksum(struct super_block *sb)
2954 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_INODE_CHKSUM);
2957 #ifdef CONFIG_BLK_DEV_ZONED
2958 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
2959 struct block_device *bdev, block_t blkaddr)
2961 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
2964 for (i = 0; i < sbi->s_ndevs; i++)
2965 if (FDEV(i).bdev == bdev)
2966 return FDEV(i).blkz_type[zno];
2971 static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
2973 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
2975 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
2978 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2980 clear_opt(sbi, ADAPTIVE);
2981 clear_opt(sbi, LFS);
2984 case F2FS_MOUNT_ADAPTIVE:
2985 set_opt(sbi, ADAPTIVE);
2987 case F2FS_MOUNT_LFS:
2993 static inline bool f2fs_may_encrypt(struct inode *inode)
2995 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2996 umode_t mode = inode->i_mode;
2998 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));