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 #ifdef CONFIG_F2FS_FS_ENCRYPTION
26 #include <linux/fscrypt_supp.h>
28 #include <linux/fscrypt_notsupp.h>
30 #include <crypto/hash.h>
32 #ifdef CONFIG_F2FS_CHECK_FS
33 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
35 #define f2fs_bug_on(sbi, condition) \
37 if (unlikely(condition)) { \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
44 #ifdef CONFIG_F2FS_FAULT_INJECTION
59 struct f2fs_fault_info {
61 unsigned int inject_rate;
62 unsigned int inject_type;
65 extern char *fault_name[FAULT_MAX];
66 #define IS_FAULT_SET(fi, type) (fi->inject_type & (1 << (type)))
72 #define F2FS_MOUNT_BG_GC 0x00000001
73 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
74 #define F2FS_MOUNT_DISCARD 0x00000004
75 #define F2FS_MOUNT_NOHEAP 0x00000008
76 #define F2FS_MOUNT_XATTR_USER 0x00000010
77 #define F2FS_MOUNT_POSIX_ACL 0x00000020
78 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
79 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
80 #define F2FS_MOUNT_INLINE_DATA 0x00000100
81 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
82 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
83 #define F2FS_MOUNT_NOBARRIER 0x00000800
84 #define F2FS_MOUNT_FASTBOOT 0x00001000
85 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
86 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
87 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
88 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
89 #define F2FS_MOUNT_ADAPTIVE 0x00020000
90 #define F2FS_MOUNT_LFS 0x00040000
92 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
93 #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
94 #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
96 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
97 typecheck(unsigned long long, b) && \
98 ((long long)((a) - (b)) > 0))
100 typedef u32 block_t; /*
101 * should not change u32, since it is the on-disk block
102 * address format, __le32.
106 struct f2fs_mount_info {
110 #define F2FS_FEATURE_ENCRYPT 0x0001
111 #define F2FS_FEATURE_BLKZONED 0x0002
113 #define F2FS_HAS_FEATURE(sb, mask) \
114 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
115 #define F2FS_SET_FEATURE(sb, mask) \
116 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
117 #define F2FS_CLEAR_FEATURE(sb, mask) \
118 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
121 * For checkpoint manager
136 #define DEF_BATCHED_TRIM_SECTIONS 2048
137 #define BATCHED_TRIM_SEGMENTS(sbi) \
138 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
139 #define BATCHED_TRIM_BLOCKS(sbi) \
140 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
141 #define MAX_DISCARD_BLOCKS(sbi) \
142 ((1 << (sbi)->log_blocks_per_seg) * (sbi)->segs_per_sec)
143 #define DISCARD_ISSUE_RATE 8
144 #define DEF_CP_INTERVAL 60 /* 60 secs */
145 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
156 * For CP/NAT/SIT/SSA readahead
166 /* for the list of ino */
168 ORPHAN_INO, /* for orphan ino list */
169 APPEND_INO, /* for append ino list */
170 UPDATE_INO, /* for update ino list */
171 MAX_INO_ENTRY, /* max. list */
175 struct list_head list; /* list head */
176 nid_t ino; /* inode number */
179 /* for the list of inodes to be GCed */
181 struct list_head list; /* list head */
182 struct inode *inode; /* vfs inode pointer */
185 /* for the list of blockaddresses to be discarded */
186 struct discard_entry {
187 struct list_head list; /* list head */
188 block_t blkaddr; /* block address to be discarded */
189 int len; /* # of consecutive blocks of the discard */
199 struct list_head list; /* command list */
200 struct completion wait; /* compleation */
201 struct block_device *bdev; /* bdev */
202 block_t lstart; /* logical start address */
203 block_t start; /* actual start address in dev */
204 block_t len; /* length */
205 int state; /* state */
206 int error; /* bio error */
209 struct discard_cmd_control {
210 struct task_struct *f2fs_issue_discard; /* discard thread */
211 struct list_head discard_entry_list; /* 4KB discard entry list */
212 int nr_discards; /* # of discards in the list */
213 struct list_head discard_cmd_list; /* discard cmd list */
214 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
215 struct mutex cmd_lock;
216 int max_discards; /* max. discards to be issued */
217 atomic_t submit_discard; /* # of issued discard */
220 /* for the list of fsync inodes, used only during recovery */
221 struct fsync_inode_entry {
222 struct list_head list; /* list head */
223 struct inode *inode; /* vfs inode pointer */
224 block_t blkaddr; /* block address locating the last fsync */
225 block_t last_dentry; /* block address locating the last dentry */
228 #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
229 #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
231 #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
232 #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
233 #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
234 #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
236 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
237 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
239 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
241 int before = nats_in_cursum(journal);
243 journal->n_nats = cpu_to_le16(before + i);
247 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
249 int before = sits_in_cursum(journal);
251 journal->n_sits = cpu_to_le16(before + i);
255 static inline bool __has_cursum_space(struct f2fs_journal *journal,
258 if (type == NAT_JOURNAL)
259 return size <= MAX_NAT_JENTRIES(journal);
260 return size <= MAX_SIT_JENTRIES(journal);
266 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
267 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
268 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
270 #define F2FS_IOCTL_MAGIC 0xf5
271 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
272 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
273 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
274 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
275 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
276 #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
277 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
278 #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
279 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
280 struct f2fs_move_range)
282 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
283 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
284 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
287 * should be same as XFS_IOC_GOINGDOWN.
288 * Flags for going down operation used by FS_IOC_GOINGDOWN
290 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
291 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
292 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
293 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
294 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
296 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
298 * ioctl commands in 32 bit emulation
300 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
301 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
302 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
305 struct f2fs_defragment {
310 struct f2fs_move_range {
311 u32 dst_fd; /* destination fd */
312 u64 pos_in; /* start position in src_fd */
313 u64 pos_out; /* start position in dst_fd */
314 u64 len; /* size to move */
318 * For INODE and NODE manager
320 /* for directory operations */
321 struct f2fs_dentry_ptr {
324 struct f2fs_dir_entry *dentry;
325 __u8 (*filename)[F2FS_SLOT_LEN];
329 static inline void make_dentry_ptr(struct inode *inode,
330 struct f2fs_dentry_ptr *d, void *src, int type)
335 struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src;
337 d->max = NR_DENTRY_IN_BLOCK;
338 d->bitmap = &t->dentry_bitmap;
339 d->dentry = t->dentry;
340 d->filename = t->filename;
342 struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src;
344 d->max = NR_INLINE_DENTRY;
345 d->bitmap = &t->dentry_bitmap;
346 d->dentry = t->dentry;
347 d->filename = t->filename;
352 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
353 * as its node offset to distinguish from index node blocks.
354 * But some bits are used to mark the node block.
356 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
359 ALLOC_NODE, /* allocate a new node page if needed */
360 LOOKUP_NODE, /* look up a node without readahead */
362 * look up a node with readahead called
367 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
369 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
371 /* vector size for gang look-up from extent cache that consists of radix tree */
372 #define EXT_TREE_VEC_SIZE 64
374 /* for in-memory extent cache entry */
375 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
377 /* number of extent info in extent cache we try to shrink */
378 #define EXTENT_CACHE_SHRINK_NUMBER 128
381 unsigned int fofs; /* start offset in a file */
382 u32 blk; /* start block address of the extent */
383 unsigned int len; /* length of the extent */
387 struct rb_node rb_node; /* rb node located in rb-tree */
388 struct list_head list; /* node in global extent list of sbi */
389 struct extent_info ei; /* extent info */
390 struct extent_tree *et; /* extent tree pointer */
394 nid_t ino; /* inode number */
395 struct rb_root root; /* root of extent info rb-tree */
396 struct extent_node *cached_en; /* recently accessed extent node */
397 struct extent_info largest; /* largested extent info */
398 struct list_head list; /* to be used by sbi->zombie_list */
399 rwlock_t lock; /* protect extent info rb-tree */
400 atomic_t node_cnt; /* # of extent node in rb-tree*/
404 * This structure is taken from ext4_map_blocks.
406 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
408 #define F2FS_MAP_NEW (1 << BH_New)
409 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
410 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
411 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
414 struct f2fs_map_blocks {
418 unsigned int m_flags;
419 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
422 /* for flag in get_data_block */
423 #define F2FS_GET_BLOCK_READ 0
424 #define F2FS_GET_BLOCK_DIO 1
425 #define F2FS_GET_BLOCK_FIEMAP 2
426 #define F2FS_GET_BLOCK_BMAP 3
427 #define F2FS_GET_BLOCK_PRE_DIO 4
428 #define F2FS_GET_BLOCK_PRE_AIO 5
431 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
433 #define FADVISE_COLD_BIT 0x01
434 #define FADVISE_LOST_PINO_BIT 0x02
435 #define FADVISE_ENCRYPT_BIT 0x04
436 #define FADVISE_ENC_NAME_BIT 0x08
437 #define FADVISE_KEEP_SIZE_BIT 0x10
439 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
440 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
441 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
442 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
443 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
444 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
445 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
446 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
447 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
448 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
449 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
450 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
451 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
453 #define DEF_DIR_LEVEL 0
455 struct f2fs_inode_info {
456 struct inode vfs_inode; /* serve a vfs inode */
457 unsigned long i_flags; /* keep an inode flags for ioctl */
458 unsigned char i_advise; /* use to give file attribute hints */
459 unsigned char i_dir_level; /* use for dentry level for large dir */
460 unsigned int i_current_depth; /* use only in directory structure */
461 unsigned int i_pino; /* parent inode number */
462 umode_t i_acl_mode; /* keep file acl mode temporarily */
464 /* Use below internally in f2fs*/
465 unsigned long flags; /* use to pass per-file flags */
466 struct rw_semaphore i_sem; /* protect fi info */
467 atomic_t dirty_pages; /* # of dirty pages */
468 f2fs_hash_t chash; /* hash value of given file name */
469 unsigned int clevel; /* maximum level of given file name */
470 struct task_struct *task; /* lookup and create consistency */
471 nid_t i_xattr_nid; /* node id that contains xattrs */
472 loff_t last_disk_size; /* lastly written file size */
474 struct list_head dirty_list; /* dirty list for dirs and files */
475 struct list_head gdirty_list; /* linked in global dirty list */
476 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
477 struct mutex inmem_lock; /* lock for inmemory pages */
478 struct extent_tree *extent_tree; /* cached extent_tree entry */
479 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
482 static inline void get_extent_info(struct extent_info *ext,
483 struct f2fs_extent *i_ext)
485 ext->fofs = le32_to_cpu(i_ext->fofs);
486 ext->blk = le32_to_cpu(i_ext->blk);
487 ext->len = le32_to_cpu(i_ext->len);
490 static inline void set_raw_extent(struct extent_info *ext,
491 struct f2fs_extent *i_ext)
493 i_ext->fofs = cpu_to_le32(ext->fofs);
494 i_ext->blk = cpu_to_le32(ext->blk);
495 i_ext->len = cpu_to_le32(ext->len);
498 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
499 u32 blk, unsigned int len)
506 static inline bool __is_extent_mergeable(struct extent_info *back,
507 struct extent_info *front)
509 return (back->fofs + back->len == front->fofs &&
510 back->blk + back->len == front->blk);
513 static inline bool __is_back_mergeable(struct extent_info *cur,
514 struct extent_info *back)
516 return __is_extent_mergeable(back, cur);
519 static inline bool __is_front_mergeable(struct extent_info *cur,
520 struct extent_info *front)
522 return __is_extent_mergeable(cur, front);
525 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
526 static inline void __try_update_largest_extent(struct inode *inode,
527 struct extent_tree *et, struct extent_node *en)
529 if (en->ei.len > et->largest.len) {
530 et->largest = en->ei;
531 f2fs_mark_inode_dirty_sync(inode, true);
541 struct f2fs_nm_info {
542 block_t nat_blkaddr; /* base disk address of NAT */
543 nid_t max_nid; /* maximum possible node ids */
544 nid_t available_nids; /* # of available node ids */
545 nid_t next_scan_nid; /* the next nid to be scanned */
546 unsigned int ram_thresh; /* control the memory footprint */
547 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
548 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
550 /* NAT cache management */
551 struct radix_tree_root nat_root;/* root of the nat entry cache */
552 struct radix_tree_root nat_set_root;/* root of the nat set cache */
553 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
554 struct list_head nat_entries; /* cached nat entry list (clean) */
555 unsigned int nat_cnt; /* the # of cached nat entries */
556 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
557 unsigned int nat_blocks; /* # of nat blocks */
559 /* free node ids management */
560 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
561 struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
562 unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */
563 spinlock_t nid_list_lock; /* protect nid lists ops */
564 struct mutex build_lock; /* lock for build free nids */
565 unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE];
566 unsigned char *nat_block_bitmap;
567 unsigned short *free_nid_count; /* free nid count of NAT block */
570 char *nat_bitmap; /* NAT bitmap pointer */
572 unsigned int nat_bits_blocks; /* # of nat bits blocks */
573 unsigned char *nat_bits; /* NAT bits blocks */
574 unsigned char *full_nat_bits; /* full NAT pages */
575 unsigned char *empty_nat_bits; /* empty NAT pages */
576 #ifdef CONFIG_F2FS_CHECK_FS
577 char *nat_bitmap_mir; /* NAT bitmap mirror */
579 int bitmap_size; /* bitmap size */
583 * this structure is used as one of function parameters.
584 * all the information are dedicated to a given direct node block determined
585 * by the data offset in a file.
587 struct dnode_of_data {
588 struct inode *inode; /* vfs inode pointer */
589 struct page *inode_page; /* its inode page, NULL is possible */
590 struct page *node_page; /* cached direct node page */
591 nid_t nid; /* node id of the direct node block */
592 unsigned int ofs_in_node; /* data offset in the node page */
593 bool inode_page_locked; /* inode page is locked or not */
594 bool node_changed; /* is node block changed */
595 char cur_level; /* level of hole node page */
596 char max_level; /* level of current page located */
597 block_t data_blkaddr; /* block address of the node block */
600 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
601 struct page *ipage, struct page *npage, nid_t nid)
603 memset(dn, 0, sizeof(*dn));
605 dn->inode_page = ipage;
606 dn->node_page = npage;
613 * By default, there are 6 active log areas across the whole main area.
614 * When considering hot and cold data separation to reduce cleaning overhead,
615 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
617 * In the current design, you should not change the numbers intentionally.
618 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
619 * logs individually according to the underlying devices. (default: 6)
620 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
621 * data and 8 for node logs.
623 #define NR_CURSEG_DATA_TYPE (3)
624 #define NR_CURSEG_NODE_TYPE (3)
625 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
628 CURSEG_HOT_DATA = 0, /* directory entry blocks */
629 CURSEG_WARM_DATA, /* data blocks */
630 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
631 CURSEG_HOT_NODE, /* direct node blocks of directory files */
632 CURSEG_WARM_NODE, /* direct node blocks of normal files */
633 CURSEG_COLD_NODE, /* indirect node blocks */
638 struct completion wait;
639 struct llist_node llnode;
643 struct flush_cmd_control {
644 struct task_struct *f2fs_issue_flush; /* flush thread */
645 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
646 atomic_t submit_flush; /* # of issued flushes */
647 struct llist_head issue_list; /* list for command issue */
648 struct llist_node *dispatch_list; /* list for command dispatch */
651 struct f2fs_sm_info {
652 struct sit_info *sit_info; /* whole segment information */
653 struct free_segmap_info *free_info; /* free segment information */
654 struct dirty_seglist_info *dirty_info; /* dirty segment information */
655 struct curseg_info *curseg_array; /* active segment information */
657 block_t seg0_blkaddr; /* block address of 0'th segment */
658 block_t main_blkaddr; /* start block address of main area */
659 block_t ssa_blkaddr; /* start block address of SSA area */
661 unsigned int segment_count; /* total # of segments */
662 unsigned int main_segments; /* # of segments in main area */
663 unsigned int reserved_segments; /* # of reserved segments */
664 unsigned int ovp_segments; /* # of overprovision segments */
666 /* a threshold to reclaim prefree segments */
667 unsigned int rec_prefree_segments;
669 /* for batched trimming */
670 unsigned int trim_sections; /* # of sections to trim */
672 struct list_head sit_entry_set; /* sit entry set list */
674 unsigned int ipu_policy; /* in-place-update policy */
675 unsigned int min_ipu_util; /* in-place-update threshold */
676 unsigned int min_fsync_blocks; /* threshold for fsync */
678 /* for flush command control */
679 struct flush_cmd_control *fcc_info;
681 /* for discard command control */
682 struct discard_cmd_control *dcc_info;
689 * COUNT_TYPE for monitoring
691 * f2fs monitors the number of several block types such as on-writeback,
692 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
694 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
708 * The below are the page types of bios used in submit_bio().
709 * The available types are:
710 * DATA User data pages. It operates as async mode.
711 * NODE Node pages. It operates as async mode.
712 * META FS metadata pages such as SIT, NAT, CP.
713 * NR_PAGE_TYPE The number of page types.
714 * META_FLUSH Make sure the previous pages are written
715 * with waiting the bio's completion
716 * ... Only can be used with META.
718 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
725 INMEM, /* the below types are used by tracepoints only. */
733 struct f2fs_io_info {
734 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
735 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
736 int op; /* contains REQ_OP_ */
737 int op_flags; /* req_flag_bits */
738 block_t new_blkaddr; /* new block address to be written */
739 block_t old_blkaddr; /* old block address before Cow */
740 struct page *page; /* page to be written */
741 struct page *encrypted_page; /* encrypted page */
742 bool submitted; /* indicate IO submission */
745 #define is_read_io(rw) (rw == READ)
746 struct f2fs_bio_info {
747 struct f2fs_sb_info *sbi; /* f2fs superblock */
748 struct bio *bio; /* bios to merge */
749 sector_t last_block_in_bio; /* last block number */
750 struct f2fs_io_info fio; /* store buffered io info. */
751 struct rw_semaphore io_rwsem; /* blocking op for bio */
754 #define FDEV(i) (sbi->devs[i])
755 #define RDEV(i) (raw_super->devs[i])
756 struct f2fs_dev_info {
757 struct block_device *bdev;
758 char path[MAX_PATH_LEN];
759 unsigned int total_segments;
762 #ifdef CONFIG_BLK_DEV_ZONED
763 unsigned int nr_blkz; /* Total number of zones */
764 u8 *blkz_type; /* Array of zones type */
769 DIR_INODE, /* for dirty dir inode */
770 FILE_INODE, /* for dirty regular/symlink inode */
771 DIRTY_META, /* for all dirtied inode metadata */
775 /* for inner inode cache management */
776 struct inode_management {
777 struct radix_tree_root ino_root; /* ino entry array */
778 spinlock_t ino_lock; /* for ino entry lock */
779 struct list_head ino_list; /* inode list head */
780 unsigned long ino_num; /* number of entries */
783 /* For s_flag in struct f2fs_sb_info */
785 SBI_IS_DIRTY, /* dirty flag for checkpoint */
786 SBI_IS_CLOSE, /* specify unmounting */
787 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
788 SBI_POR_DOING, /* recovery is doing or not */
789 SBI_NEED_SB_WRITE, /* need to recover superblock */
790 SBI_NEED_CP, /* need to checkpoint */
799 struct f2fs_sb_info {
800 struct super_block *sb; /* pointer to VFS super block */
801 struct proc_dir_entry *s_proc; /* proc entry */
802 struct f2fs_super_block *raw_super; /* raw super block pointer */
803 int valid_super_block; /* valid super block no */
804 unsigned long s_flag; /* flags for sbi */
806 #ifdef CONFIG_BLK_DEV_ZONED
807 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
808 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
811 /* for node-related operations */
812 struct f2fs_nm_info *nm_info; /* node manager */
813 struct inode *node_inode; /* cache node blocks */
815 /* for segment-related operations */
816 struct f2fs_sm_info *sm_info; /* segment manager */
818 /* for bio operations */
819 struct f2fs_bio_info read_io; /* for read bios */
820 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
821 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
822 int write_io_size_bits; /* Write IO size bits */
823 mempool_t *write_io_dummy; /* Dummy pages */
826 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
827 int cur_cp_pack; /* remain current cp pack */
828 spinlock_t cp_lock; /* for flag in ckpt */
829 struct inode *meta_inode; /* cache meta blocks */
830 struct mutex cp_mutex; /* checkpoint procedure lock */
831 struct rw_semaphore cp_rwsem; /* blocking FS operations */
832 struct rw_semaphore node_write; /* locking node writes */
833 struct rw_semaphore node_change; /* locking node change */
834 wait_queue_head_t cp_wait;
835 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
836 long interval_time[MAX_TIME]; /* to store thresholds */
838 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
840 /* for orphan inode, use 0'th array */
841 unsigned int max_orphans; /* max orphan inodes */
843 /* for inode management */
844 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
845 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
847 /* for extent tree cache */
848 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
849 struct mutex extent_tree_lock; /* locking extent radix tree */
850 struct list_head extent_list; /* lru list for shrinker */
851 spinlock_t extent_lock; /* locking extent lru list */
852 atomic_t total_ext_tree; /* extent tree count */
853 struct list_head zombie_list; /* extent zombie tree list */
854 atomic_t total_zombie_tree; /* extent zombie tree count */
855 atomic_t total_ext_node; /* extent info count */
857 /* basic filesystem units */
858 unsigned int log_sectors_per_block; /* log2 sectors per block */
859 unsigned int log_blocksize; /* log2 block size */
860 unsigned int blocksize; /* block size */
861 unsigned int root_ino_num; /* root inode number*/
862 unsigned int node_ino_num; /* node inode number*/
863 unsigned int meta_ino_num; /* meta inode number*/
864 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
865 unsigned int blocks_per_seg; /* blocks per segment */
866 unsigned int segs_per_sec; /* segments per section */
867 unsigned int secs_per_zone; /* sections per zone */
868 unsigned int total_sections; /* total section count */
869 unsigned int total_node_count; /* total node block count */
870 unsigned int total_valid_node_count; /* valid node block count */
871 loff_t max_file_blocks; /* max block index of file */
872 int active_logs; /* # of active logs */
873 int dir_level; /* directory level */
875 block_t user_block_count; /* # of user blocks */
876 block_t total_valid_block_count; /* # of valid blocks */
877 block_t discard_blks; /* discard command candidats */
878 block_t last_valid_block_count; /* for recovery */
879 u32 s_next_generation; /* for NFS support */
881 /* # of pages, see count_type */
882 atomic_t nr_pages[NR_COUNT_TYPE];
883 /* # of allocated blocks */
884 struct percpu_counter alloc_valid_block_count;
886 /* valid inode count */
887 struct percpu_counter total_valid_inode_count;
889 struct f2fs_mount_info mount_opt; /* mount options */
891 /* for cleaning operations */
892 struct mutex gc_mutex; /* mutex for GC */
893 struct f2fs_gc_kthread *gc_thread; /* GC thread */
894 unsigned int cur_victim_sec; /* current victim section num */
896 /* threshold for converting bg victims for fg */
899 /* maximum # of trials to find a victim segment for SSR and GC */
900 unsigned int max_victim_search;
903 * for stat information.
904 * one is for the LFS mode, and the other is for the SSR mode.
906 #ifdef CONFIG_F2FS_STAT_FS
907 struct f2fs_stat_info *stat_info; /* FS status information */
908 unsigned int segment_count[2]; /* # of allocated segments */
909 unsigned int block_count[2]; /* # of allocated blocks */
910 atomic_t inplace_count; /* # of inplace update */
911 atomic64_t total_hit_ext; /* # of lookup extent cache */
912 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
913 atomic64_t read_hit_largest; /* # of hit largest extent node */
914 atomic64_t read_hit_cached; /* # of hit cached extent node */
915 atomic_t inline_xattr; /* # of inline_xattr inodes */
916 atomic_t inline_inode; /* # of inline_data inodes */
917 atomic_t inline_dir; /* # of inline_dentry inodes */
918 atomic_t aw_cnt; /* # of atomic writes */
919 atomic_t vw_cnt; /* # of volatile writes */
920 atomic_t max_aw_cnt; /* max # of atomic writes */
921 atomic_t max_vw_cnt; /* max # of volatile writes */
922 int bg_gc; /* background gc calls */
923 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
925 unsigned int last_victim[2]; /* last victim segment # */
926 spinlock_t stat_lock; /* lock for stat operations */
928 /* For sysfs suppport */
929 struct kobject s_kobj;
930 struct completion s_kobj_unregister;
932 /* For shrinker support */
933 struct list_head s_list;
934 int s_ndevs; /* number of devices */
935 struct f2fs_dev_info *devs; /* for device list */
936 struct mutex umount_mutex;
937 unsigned int shrinker_run_no;
939 /* For write statistics */
940 u64 sectors_written_start;
943 /* Reference to checksum algorithm driver via cryptoapi */
944 struct crypto_shash *s_chksum_driver;
946 /* For fault injection */
947 #ifdef CONFIG_F2FS_FAULT_INJECTION
948 struct f2fs_fault_info fault_info;
952 #ifdef CONFIG_F2FS_FAULT_INJECTION
953 #define f2fs_show_injection_info(type) \
954 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
955 KERN_INFO, fault_name[type], \
956 __func__, __builtin_return_address(0))
957 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
959 struct f2fs_fault_info *ffi = &sbi->fault_info;
961 if (!ffi->inject_rate)
964 if (!IS_FAULT_SET(ffi, type))
967 atomic_inc(&ffi->inject_ops);
968 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
969 atomic_set(&ffi->inject_ops, 0);
976 /* For write statistics. Suppose sector size is 512 bytes,
977 * and the return value is in kbytes. s is of struct f2fs_sb_info.
979 #define BD_PART_WRITTEN(s) \
980 (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
981 s->sectors_written_start) >> 1)
983 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
985 sbi->last_time[type] = jiffies;
988 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
990 struct timespec ts = {sbi->interval_time[type], 0};
991 unsigned long interval = timespec_to_jiffies(&ts);
993 return time_after(jiffies, sbi->last_time[type] + interval);
996 static inline bool is_idle(struct f2fs_sb_info *sbi)
998 struct block_device *bdev = sbi->sb->s_bdev;
999 struct request_queue *q = bdev_get_queue(bdev);
1000 struct request_list *rl = &q->root_rl;
1002 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1005 return f2fs_time_over(sbi, REQ_TIME);
1011 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1012 unsigned int length)
1014 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
1015 u32 *ctx = (u32 *)shash_desc_ctx(shash);
1018 shash->tfm = sbi->s_chksum_driver;
1020 *ctx = F2FS_SUPER_MAGIC;
1022 err = crypto_shash_update(shash, address, length);
1028 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1029 void *buf, size_t buf_size)
1031 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1034 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1036 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1039 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1041 return sb->s_fs_info;
1044 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1046 return F2FS_SB(inode->i_sb);
1049 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1051 return F2FS_I_SB(mapping->host);
1054 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1056 return F2FS_M_SB(page->mapping);
1059 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1061 return (struct f2fs_super_block *)(sbi->raw_super);
1064 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1066 return (struct f2fs_checkpoint *)(sbi->ckpt);
1069 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1071 return (struct f2fs_node *)page_address(page);
1074 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1076 return &((struct f2fs_node *)page_address(page))->i;
1079 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1081 return (struct f2fs_nm_info *)(sbi->nm_info);
1084 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1086 return (struct f2fs_sm_info *)(sbi->sm_info);
1089 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1091 return (struct sit_info *)(SM_I(sbi)->sit_info);
1094 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1096 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1099 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1101 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1104 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1106 return sbi->meta_inode->i_mapping;
1109 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1111 return sbi->node_inode->i_mapping;
1114 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1116 return test_bit(type, &sbi->s_flag);
1119 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1121 set_bit(type, &sbi->s_flag);
1124 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1126 clear_bit(type, &sbi->s_flag);
1129 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1131 return le64_to_cpu(cp->checkpoint_ver);
1134 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1136 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1137 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1140 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1142 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1144 return ckpt_flags & f;
1147 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1149 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1152 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1154 unsigned int ckpt_flags;
1156 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1158 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1161 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1163 spin_lock(&sbi->cp_lock);
1164 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1165 spin_unlock(&sbi->cp_lock);
1168 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1170 unsigned int ckpt_flags;
1172 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1174 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1177 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1179 spin_lock(&sbi->cp_lock);
1180 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1181 spin_unlock(&sbi->cp_lock);
1184 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1186 set_sbi_flag(sbi, SBI_NEED_FSCK);
1189 spin_lock(&sbi->cp_lock);
1190 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1191 kfree(NM_I(sbi)->nat_bits);
1192 NM_I(sbi)->nat_bits = NULL;
1194 spin_unlock(&sbi->cp_lock);
1197 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1198 struct cp_control *cpc)
1200 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1202 return (cpc) ? (cpc->reason == CP_UMOUNT) && set : set;
1205 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1207 down_read(&sbi->cp_rwsem);
1210 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1212 up_read(&sbi->cp_rwsem);
1215 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1217 down_write(&sbi->cp_rwsem);
1220 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1222 up_write(&sbi->cp_rwsem);
1225 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1227 int reason = CP_SYNC;
1229 if (test_opt(sbi, FASTBOOT))
1230 reason = CP_FASTBOOT;
1231 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1236 static inline bool __remain_node_summaries(int reason)
1238 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1241 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1243 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1244 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1248 * Check whether the given nid is within node id range.
1250 static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
1252 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1254 if (unlikely(nid >= NM_I(sbi)->max_nid))
1259 #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1262 * Check whether the inode has blocks or not
1264 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1266 if (F2FS_I(inode)->i_xattr_nid)
1267 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
1269 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
1272 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1274 return ofs == XATTR_NODE_OFFSET;
1277 static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
1278 static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
1279 struct inode *inode, blkcnt_t *count)
1283 #ifdef CONFIG_F2FS_FAULT_INJECTION
1284 if (time_to_inject(sbi, FAULT_BLOCK)) {
1285 f2fs_show_injection_info(FAULT_BLOCK);
1290 * let's increase this in prior to actual block count change in order
1291 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1293 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1295 spin_lock(&sbi->stat_lock);
1296 sbi->total_valid_block_count += (block_t)(*count);
1297 if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) {
1298 diff = sbi->total_valid_block_count - sbi->user_block_count;
1300 sbi->total_valid_block_count = sbi->user_block_count;
1302 spin_unlock(&sbi->stat_lock);
1303 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
1307 spin_unlock(&sbi->stat_lock);
1309 f2fs_i_blocks_write(inode, *count, true);
1313 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1314 struct inode *inode,
1317 spin_lock(&sbi->stat_lock);
1318 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1319 f2fs_bug_on(sbi, inode->i_blocks < count);
1320 sbi->total_valid_block_count -= (block_t)count;
1321 spin_unlock(&sbi->stat_lock);
1322 f2fs_i_blocks_write(inode, count, false);
1325 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1327 atomic_inc(&sbi->nr_pages[count_type]);
1329 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1330 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1333 set_sbi_flag(sbi, SBI_IS_DIRTY);
1336 static inline void inode_inc_dirty_pages(struct inode *inode)
1338 atomic_inc(&F2FS_I(inode)->dirty_pages);
1339 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1340 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1343 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1345 atomic_dec(&sbi->nr_pages[count_type]);
1348 static inline void inode_dec_dirty_pages(struct inode *inode)
1350 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1351 !S_ISLNK(inode->i_mode))
1354 atomic_dec(&F2FS_I(inode)->dirty_pages);
1355 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1356 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1359 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1361 return atomic_read(&sbi->nr_pages[count_type]);
1364 static inline int get_dirty_pages(struct inode *inode)
1366 return atomic_read(&F2FS_I(inode)->dirty_pages);
1369 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1371 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1372 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1373 sbi->log_blocks_per_seg;
1375 return segs / sbi->segs_per_sec;
1378 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1380 return sbi->total_valid_block_count;
1383 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1385 return sbi->discard_blks;
1388 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1390 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1392 /* return NAT or SIT bitmap */
1393 if (flag == NAT_BITMAP)
1394 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1395 else if (flag == SIT_BITMAP)
1396 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1401 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1403 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1406 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1408 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1411 if (__cp_payload(sbi) > 0) {
1412 if (flag == NAT_BITMAP)
1413 return &ckpt->sit_nat_version_bitmap;
1415 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1417 offset = (flag == NAT_BITMAP) ?
1418 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1419 return &ckpt->sit_nat_version_bitmap + offset;
1423 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1425 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1427 if (sbi->cur_cp_pack == 2)
1428 start_addr += sbi->blocks_per_seg;
1432 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1434 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1436 if (sbi->cur_cp_pack == 1)
1437 start_addr += sbi->blocks_per_seg;
1441 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1443 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1446 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1448 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1451 static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
1452 struct inode *inode)
1454 block_t valid_block_count;
1455 unsigned int valid_node_count;
1457 spin_lock(&sbi->stat_lock);
1459 valid_block_count = sbi->total_valid_block_count + 1;
1460 if (unlikely(valid_block_count > sbi->user_block_count)) {
1461 spin_unlock(&sbi->stat_lock);
1465 valid_node_count = sbi->total_valid_node_count + 1;
1466 if (unlikely(valid_node_count > sbi->total_node_count)) {
1467 spin_unlock(&sbi->stat_lock);
1472 f2fs_i_blocks_write(inode, 1, true);
1474 sbi->total_valid_node_count++;
1475 sbi->total_valid_block_count++;
1476 spin_unlock(&sbi->stat_lock);
1478 percpu_counter_inc(&sbi->alloc_valid_block_count);
1482 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1483 struct inode *inode)
1485 spin_lock(&sbi->stat_lock);
1487 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1488 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1489 f2fs_bug_on(sbi, !inode->i_blocks);
1491 f2fs_i_blocks_write(inode, 1, false);
1492 sbi->total_valid_node_count--;
1493 sbi->total_valid_block_count--;
1495 spin_unlock(&sbi->stat_lock);
1498 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1500 return sbi->total_valid_node_count;
1503 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1505 percpu_counter_inc(&sbi->total_valid_inode_count);
1508 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1510 percpu_counter_dec(&sbi->total_valid_inode_count);
1513 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1515 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1518 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1519 pgoff_t index, bool for_write)
1521 #ifdef CONFIG_F2FS_FAULT_INJECTION
1522 struct page *page = find_lock_page(mapping, index);
1527 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1528 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
1533 return grab_cache_page(mapping, index);
1534 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1537 static inline void f2fs_copy_page(struct page *src, struct page *dst)
1539 char *src_kaddr = kmap(src);
1540 char *dst_kaddr = kmap(dst);
1542 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1547 static inline void f2fs_put_page(struct page *page, int unlock)
1553 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
1559 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1562 f2fs_put_page(dn->node_page, 1);
1563 if (dn->inode_page && dn->node_page != dn->inode_page)
1564 f2fs_put_page(dn->inode_page, 0);
1565 dn->node_page = NULL;
1566 dn->inode_page = NULL;
1569 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
1572 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
1575 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1580 entry = kmem_cache_alloc(cachep, flags);
1582 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
1586 static inline struct bio *f2fs_bio_alloc(int npages)
1590 /* No failure on bio allocation */
1591 bio = bio_alloc(GFP_NOIO, npages);
1593 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
1597 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1598 unsigned long index, void *item)
1600 while (radix_tree_insert(root, index, item))
1604 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1606 static inline bool IS_INODE(struct page *page)
1608 struct f2fs_node *p = F2FS_NODE(page);
1610 return RAW_IS_INODE(p);
1613 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1615 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1618 static inline block_t datablock_addr(struct page *node_page,
1619 unsigned int offset)
1621 struct f2fs_node *raw_node;
1624 raw_node = F2FS_NODE(node_page);
1625 addr_array = blkaddr_in_node(raw_node);
1626 return le32_to_cpu(addr_array[offset]);
1629 static inline int f2fs_test_bit(unsigned int nr, char *addr)
1634 mask = 1 << (7 - (nr & 0x07));
1635 return mask & *addr;
1638 static inline void f2fs_set_bit(unsigned int nr, char *addr)
1643 mask = 1 << (7 - (nr & 0x07));
1647 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1652 mask = 1 << (7 - (nr & 0x07));
1656 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
1662 mask = 1 << (7 - (nr & 0x07));
1668 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
1674 mask = 1 << (7 - (nr & 0x07));
1680 static inline void f2fs_change_bit(unsigned int nr, char *addr)
1685 mask = 1 << (7 - (nr & 0x07));
1689 /* used for f2fs_inode_info->flags */
1691 FI_NEW_INODE, /* indicate newly allocated inode */
1692 FI_DIRTY_INODE, /* indicate inode is dirty or not */
1693 FI_AUTO_RECOVER, /* indicate inode is recoverable */
1694 FI_DIRTY_DIR, /* indicate directory has dirty pages */
1695 FI_INC_LINK, /* need to increment i_nlink */
1696 FI_ACL_MODE, /* indicate acl mode */
1697 FI_NO_ALLOC, /* should not allocate any blocks */
1698 FI_FREE_NID, /* free allocated nide */
1699 FI_NO_EXTENT, /* not to use the extent cache */
1700 FI_INLINE_XATTR, /* used for inline xattr */
1701 FI_INLINE_DATA, /* used for inline data*/
1702 FI_INLINE_DENTRY, /* used for inline dentry */
1703 FI_APPEND_WRITE, /* inode has appended data */
1704 FI_UPDATE_WRITE, /* inode has in-place-update data */
1705 FI_NEED_IPU, /* used for ipu per file */
1706 FI_ATOMIC_FILE, /* indicate atomic file */
1707 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
1708 FI_VOLATILE_FILE, /* indicate volatile file */
1709 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1710 FI_DROP_CACHE, /* drop dirty page cache */
1711 FI_DATA_EXIST, /* indicate data exists */
1712 FI_INLINE_DOTS, /* indicate inline dot dentries */
1713 FI_DO_DEFRAG, /* indicate defragment is running */
1714 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
1715 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
1718 static inline void __mark_inode_dirty_flag(struct inode *inode,
1722 case FI_INLINE_XATTR:
1723 case FI_INLINE_DATA:
1724 case FI_INLINE_DENTRY:
1728 case FI_INLINE_DOTS:
1729 f2fs_mark_inode_dirty_sync(inode, true);
1733 static inline void set_inode_flag(struct inode *inode, int flag)
1735 if (!test_bit(flag, &F2FS_I(inode)->flags))
1736 set_bit(flag, &F2FS_I(inode)->flags);
1737 __mark_inode_dirty_flag(inode, flag, true);
1740 static inline int is_inode_flag_set(struct inode *inode, int flag)
1742 return test_bit(flag, &F2FS_I(inode)->flags);
1745 static inline void clear_inode_flag(struct inode *inode, int flag)
1747 if (test_bit(flag, &F2FS_I(inode)->flags))
1748 clear_bit(flag, &F2FS_I(inode)->flags);
1749 __mark_inode_dirty_flag(inode, flag, false);
1752 static inline void set_acl_inode(struct inode *inode, umode_t mode)
1754 F2FS_I(inode)->i_acl_mode = mode;
1755 set_inode_flag(inode, FI_ACL_MODE);
1756 f2fs_mark_inode_dirty_sync(inode, false);
1759 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
1765 f2fs_mark_inode_dirty_sync(inode, true);
1768 static inline void f2fs_i_blocks_write(struct inode *inode,
1769 blkcnt_t diff, bool add)
1771 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1772 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1774 inode->i_blocks = add ? inode->i_blocks + diff :
1775 inode->i_blocks - diff;
1776 f2fs_mark_inode_dirty_sync(inode, true);
1777 if (clean || recover)
1778 set_inode_flag(inode, FI_AUTO_RECOVER);
1781 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1783 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1784 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1786 if (i_size_read(inode) == i_size)
1789 i_size_write(inode, i_size);
1790 f2fs_mark_inode_dirty_sync(inode, true);
1791 if (clean || recover)
1792 set_inode_flag(inode, FI_AUTO_RECOVER);
1795 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
1797 F2FS_I(inode)->i_current_depth = depth;
1798 f2fs_mark_inode_dirty_sync(inode, true);
1801 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
1803 F2FS_I(inode)->i_xattr_nid = xnid;
1804 f2fs_mark_inode_dirty_sync(inode, true);
1807 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1809 F2FS_I(inode)->i_pino = pino;
1810 f2fs_mark_inode_dirty_sync(inode, true);
1813 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
1815 struct f2fs_inode_info *fi = F2FS_I(inode);
1817 if (ri->i_inline & F2FS_INLINE_XATTR)
1818 set_bit(FI_INLINE_XATTR, &fi->flags);
1819 if (ri->i_inline & F2FS_INLINE_DATA)
1820 set_bit(FI_INLINE_DATA, &fi->flags);
1821 if (ri->i_inline & F2FS_INLINE_DENTRY)
1822 set_bit(FI_INLINE_DENTRY, &fi->flags);
1823 if (ri->i_inline & F2FS_DATA_EXIST)
1824 set_bit(FI_DATA_EXIST, &fi->flags);
1825 if (ri->i_inline & F2FS_INLINE_DOTS)
1826 set_bit(FI_INLINE_DOTS, &fi->flags);
1829 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
1833 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
1834 ri->i_inline |= F2FS_INLINE_XATTR;
1835 if (is_inode_flag_set(inode, FI_INLINE_DATA))
1836 ri->i_inline |= F2FS_INLINE_DATA;
1837 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
1838 ri->i_inline |= F2FS_INLINE_DENTRY;
1839 if (is_inode_flag_set(inode, FI_DATA_EXIST))
1840 ri->i_inline |= F2FS_DATA_EXIST;
1841 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
1842 ri->i_inline |= F2FS_INLINE_DOTS;
1845 static inline int f2fs_has_inline_xattr(struct inode *inode)
1847 return is_inode_flag_set(inode, FI_INLINE_XATTR);
1850 static inline unsigned int addrs_per_inode(struct inode *inode)
1852 if (f2fs_has_inline_xattr(inode))
1853 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1854 return DEF_ADDRS_PER_INODE;
1857 static inline void *inline_xattr_addr(struct page *page)
1859 struct f2fs_inode *ri = F2FS_INODE(page);
1861 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1862 F2FS_INLINE_XATTR_ADDRS]);
1865 static inline int inline_xattr_size(struct inode *inode)
1867 if (f2fs_has_inline_xattr(inode))
1868 return F2FS_INLINE_XATTR_ADDRS << 2;
1873 static inline int f2fs_has_inline_data(struct inode *inode)
1875 return is_inode_flag_set(inode, FI_INLINE_DATA);
1878 static inline int f2fs_exist_data(struct inode *inode)
1880 return is_inode_flag_set(inode, FI_DATA_EXIST);
1883 static inline int f2fs_has_inline_dots(struct inode *inode)
1885 return is_inode_flag_set(inode, FI_INLINE_DOTS);
1888 static inline bool f2fs_is_atomic_file(struct inode *inode)
1890 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
1893 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
1895 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
1898 static inline bool f2fs_is_volatile_file(struct inode *inode)
1900 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
1903 static inline bool f2fs_is_first_block_written(struct inode *inode)
1905 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
1908 static inline bool f2fs_is_drop_cache(struct inode *inode)
1910 return is_inode_flag_set(inode, FI_DROP_CACHE);
1913 static inline void *inline_data_addr(struct page *page)
1915 struct f2fs_inode *ri = F2FS_INODE(page);
1917 return (void *)&(ri->i_addr[1]);
1920 static inline int f2fs_has_inline_dentry(struct inode *inode)
1922 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
1925 static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1927 if (!f2fs_has_inline_dentry(dir))
1931 static inline int is_file(struct inode *inode, int type)
1933 return F2FS_I(inode)->i_advise & type;
1936 static inline void set_file(struct inode *inode, int type)
1938 F2FS_I(inode)->i_advise |= type;
1939 f2fs_mark_inode_dirty_sync(inode, true);
1942 static inline void clear_file(struct inode *inode, int type)
1944 F2FS_I(inode)->i_advise &= ~type;
1945 f2fs_mark_inode_dirty_sync(inode, true);
1948 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
1951 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1954 spin_lock(&sbi->inode_lock[DIRTY_META]);
1955 ret = list_empty(&F2FS_I(inode)->gdirty_list);
1956 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1959 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
1960 file_keep_isize(inode) ||
1961 i_size_read(inode) & PAGE_MASK)
1963 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
1966 static inline int f2fs_readonly(struct super_block *sb)
1968 return sb->s_flags & MS_RDONLY;
1971 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
1973 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
1976 static inline bool is_dot_dotdot(const struct qstr *str)
1978 if (str->len == 1 && str->name[0] == '.')
1981 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
1987 static inline bool f2fs_may_extent_tree(struct inode *inode)
1989 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
1990 is_inode_flag_set(inode, FI_NO_EXTENT))
1993 return S_ISREG(inode->i_mode);
1996 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
1997 size_t size, gfp_t flags)
1999 #ifdef CONFIG_F2FS_FAULT_INJECTION
2000 if (time_to_inject(sbi, FAULT_KMALLOC)) {
2001 f2fs_show_injection_info(FAULT_KMALLOC);
2005 return kmalloc(size, flags);
2008 static inline void *f2fs_kvmalloc(size_t size, gfp_t flags)
2012 ret = kmalloc(size, flags | __GFP_NOWARN);
2014 ret = __vmalloc(size, flags, PAGE_KERNEL);
2018 static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
2022 ret = kzalloc(size, flags | __GFP_NOWARN);
2024 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
2028 #define get_inode_mode(i) \
2029 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2030 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2035 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2036 void truncate_data_blocks(struct dnode_of_data *dn);
2037 int truncate_blocks(struct inode *inode, u64 from, bool lock);
2038 int f2fs_truncate(struct inode *inode);
2039 int f2fs_getattr(const struct path *path, struct kstat *stat,
2040 u32 request_mask, unsigned int flags);
2041 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2042 int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2043 int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2044 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2045 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2050 void f2fs_set_inode_flags(struct inode *inode);
2051 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2052 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2053 int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2054 int update_inode(struct inode *inode, struct page *node_page);
2055 int update_inode_page(struct inode *inode);
2056 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2057 void f2fs_evict_inode(struct inode *inode);
2058 void handle_failed_inode(struct inode *inode);
2063 struct dentry *f2fs_get_parent(struct dentry *child);
2068 void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2069 unsigned char get_de_type(struct f2fs_dir_entry *de);
2070 struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2071 f2fs_hash_t namehash, int *max_slots,
2072 struct f2fs_dentry_ptr *d);
2073 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2074 unsigned int start_pos, struct fscrypt_str *fstr);
2075 void do_make_empty_dir(struct inode *inode, struct inode *parent,
2076 struct f2fs_dentry_ptr *d);
2077 struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2078 const struct qstr *new_name,
2079 const struct qstr *orig_name, struct page *dpage);
2080 void update_parent_metadata(struct inode *dir, struct inode *inode,
2081 unsigned int current_depth);
2082 int room_for_filename(const void *bitmap, int slots, int max_slots);
2083 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2084 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2085 struct fscrypt_name *fname, struct page **res_page);
2086 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2087 const struct qstr *child, struct page **res_page);
2088 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2089 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2090 struct page **page);
2091 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2092 struct page *page, struct inode *inode);
2093 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2094 const struct qstr *name, f2fs_hash_t name_hash,
2095 unsigned int bit_pos);
2096 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2097 const struct qstr *orig_name,
2098 struct inode *inode, nid_t ino, umode_t mode);
2099 int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2100 struct inode *inode, nid_t ino, umode_t mode);
2101 int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2102 struct inode *inode, nid_t ino, umode_t mode);
2103 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2104 struct inode *dir, struct inode *inode);
2105 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2106 bool f2fs_empty_dir(struct inode *dir);
2108 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2110 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2111 inode, inode->i_ino, inode->i_mode);
2117 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2118 void f2fs_inode_synced(struct inode *inode);
2119 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2120 int f2fs_sync_fs(struct super_block *sb, int sync);
2121 extern __printf(3, 4)
2122 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2123 int sanity_check_ckpt(struct f2fs_sb_info *sbi);
2128 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info);
2133 struct dnode_of_data;
2136 bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2137 int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2138 bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2139 bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2140 void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2141 pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2142 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2143 int truncate_inode_blocks(struct inode *inode, pgoff_t from);
2144 int truncate_xattr_node(struct inode *inode, struct page *page);
2145 int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2146 int remove_inode_page(struct inode *inode);
2147 struct page *new_inode_page(struct inode *inode);
2148 struct page *new_node_page(struct dnode_of_data *dn,
2149 unsigned int ofs, struct page *ipage);
2150 void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2151 struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2152 struct page *get_node_page_ra(struct page *parent, int start);
2153 void move_node_page(struct page *node_page, int gc_type);
2154 int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2155 struct writeback_control *wbc, bool atomic);
2156 int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc);
2157 void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2158 bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2159 void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2160 void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2161 int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2162 void recover_inline_xattr(struct inode *inode, struct page *page);
2163 int recover_xattr_data(struct inode *inode, struct page *page,
2165 int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2166 int restore_node_summary(struct f2fs_sb_info *sbi,
2167 unsigned int segno, struct f2fs_summary_block *sum);
2168 void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2169 int build_node_manager(struct f2fs_sb_info *sbi);
2170 void destroy_node_manager(struct f2fs_sb_info *sbi);
2171 int __init create_node_manager_caches(void);
2172 void destroy_node_manager_caches(void);
2177 void register_inmem_page(struct inode *inode, struct page *page);
2178 void drop_inmem_pages(struct inode *inode);
2179 void drop_inmem_page(struct inode *inode, struct page *page);
2180 int commit_inmem_pages(struct inode *inode);
2181 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2182 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2183 int f2fs_issue_flush(struct f2fs_sb_info *sbi);
2184 int create_flush_cmd_control(struct f2fs_sb_info *sbi);
2185 void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2186 void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2187 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2188 void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
2189 void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr);
2190 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2191 void release_discard_addrs(struct f2fs_sb_info *sbi);
2192 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2193 void allocate_new_segments(struct f2fs_sb_info *sbi);
2194 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2195 bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2196 struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2197 void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
2198 void write_meta_page(struct f2fs_sb_info *sbi, struct page *page);
2199 void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2200 void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
2201 void rewrite_data_page(struct f2fs_io_info *fio);
2202 void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2203 block_t old_blkaddr, block_t new_blkaddr,
2204 bool recover_curseg, bool recover_newaddr);
2205 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2206 block_t old_addr, block_t new_addr,
2207 unsigned char version, bool recover_curseg,
2208 bool recover_newaddr);
2209 void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2210 block_t old_blkaddr, block_t *new_blkaddr,
2211 struct f2fs_summary *sum, int type);
2212 void f2fs_wait_on_page_writeback(struct page *page,
2213 enum page_type type, bool ordered);
2214 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi,
2216 void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2217 void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2218 int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2219 unsigned int val, int alloc);
2220 void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2221 int build_segment_manager(struct f2fs_sb_info *sbi);
2222 void destroy_segment_manager(struct f2fs_sb_info *sbi);
2223 int __init create_segment_manager_caches(void);
2224 void destroy_segment_manager_caches(void);
2229 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2230 struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2231 struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2232 struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2233 bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2234 int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2235 int type, bool sync);
2236 void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2237 long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2239 void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2240 void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2241 void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2242 bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2243 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2244 int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2245 void release_orphan_inode(struct f2fs_sb_info *sbi);
2246 void add_orphan_inode(struct inode *inode);
2247 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2248 int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2249 int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2250 void update_dirty_page(struct inode *inode, struct page *page);
2251 void remove_dirty_inode(struct inode *inode);
2252 int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2253 int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2254 void init_ino_entry_info(struct f2fs_sb_info *sbi);
2255 int __init create_checkpoint_caches(void);
2256 void destroy_checkpoint_caches(void);
2261 void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, enum page_type type,
2263 void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *sbi,
2264 struct inode *inode, nid_t ino, pgoff_t idx,
2265 enum page_type type, int rw);
2266 void f2fs_flush_merged_bios(struct f2fs_sb_info *sbi);
2267 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2268 int f2fs_submit_page_mbio(struct f2fs_io_info *fio);
2269 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2270 block_t blk_addr, struct bio *bio);
2271 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2272 void set_data_blkaddr(struct dnode_of_data *dn);
2273 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2274 int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2275 int reserve_new_block(struct dnode_of_data *dn);
2276 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2277 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2278 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2279 struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2280 int op_flags, bool for_write);
2281 struct page *find_data_page(struct inode *inode, pgoff_t index);
2282 struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2284 struct page *get_new_data_page(struct inode *inode,
2285 struct page *ipage, pgoff_t index, bool new_i_size);
2286 int do_write_data_page(struct f2fs_io_info *fio);
2287 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2288 int create, int flag);
2289 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2290 u64 start, u64 len);
2291 void f2fs_set_page_dirty_nobuffers(struct page *page);
2292 void f2fs_invalidate_page(struct page *page, unsigned int offset,
2293 unsigned int length);
2294 int f2fs_release_page(struct page *page, gfp_t wait);
2295 #ifdef CONFIG_MIGRATION
2296 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2297 struct page *page, enum migrate_mode mode);
2303 int start_gc_thread(struct f2fs_sb_info *sbi);
2304 void stop_gc_thread(struct f2fs_sb_info *sbi);
2305 block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
2306 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background);
2307 void build_gc_manager(struct f2fs_sb_info *sbi);
2312 int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2313 bool space_for_roll_forward(struct f2fs_sb_info *sbi);
2318 #ifdef CONFIG_F2FS_STAT_FS
2319 struct f2fs_stat_info {
2320 struct list_head stat_list;
2321 struct f2fs_sb_info *sbi;
2322 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2323 int main_area_segs, main_area_sections, main_area_zones;
2324 unsigned long long hit_largest, hit_cached, hit_rbtree;
2325 unsigned long long hit_total, total_ext;
2326 int ext_tree, zombie_tree, ext_node;
2327 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2329 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
2330 int nats, dirty_nats, sits, dirty_sits, free_nids, alloc_nids;
2331 int total_count, utilization;
2332 int bg_gc, nr_wb_cp_data, nr_wb_data, nr_flush, nr_discard;
2333 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
2334 int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
2335 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
2336 unsigned int bimodal, avg_vblocks;
2337 int util_free, util_valid, util_invalid;
2338 int rsvd_segs, overp_segs;
2339 int dirty_count, node_pages, meta_pages;
2340 int prefree_count, call_count, cp_count, bg_cp_count;
2341 int tot_segs, node_segs, data_segs, free_segs, free_secs;
2342 int bg_node_segs, bg_data_segs;
2343 int tot_blks, data_blks, node_blks;
2344 int bg_data_blks, bg_node_blks;
2345 int curseg[NR_CURSEG_TYPE];
2346 int cursec[NR_CURSEG_TYPE];
2347 int curzone[NR_CURSEG_TYPE];
2349 unsigned int segment_count[2];
2350 unsigned int block_count[2];
2351 unsigned int inplace_count;
2352 unsigned long long base_mem, cache_mem, page_mem;
2355 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2357 return (struct f2fs_stat_info *)sbi->stat_info;
2360 #define stat_inc_cp_count(si) ((si)->cp_count++)
2361 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2362 #define stat_inc_call_count(si) ((si)->call_count++)
2363 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2364 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2365 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2366 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2367 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2368 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2369 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2370 #define stat_inc_inline_xattr(inode) \
2372 if (f2fs_has_inline_xattr(inode)) \
2373 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2375 #define stat_dec_inline_xattr(inode) \
2377 if (f2fs_has_inline_xattr(inode)) \
2378 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2380 #define stat_inc_inline_inode(inode) \
2382 if (f2fs_has_inline_data(inode)) \
2383 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2385 #define stat_dec_inline_inode(inode) \
2387 if (f2fs_has_inline_data(inode)) \
2388 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2390 #define stat_inc_inline_dir(inode) \
2392 if (f2fs_has_inline_dentry(inode)) \
2393 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2395 #define stat_dec_inline_dir(inode) \
2397 if (f2fs_has_inline_dentry(inode)) \
2398 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2400 #define stat_inc_seg_type(sbi, curseg) \
2401 ((sbi)->segment_count[(curseg)->alloc_type]++)
2402 #define stat_inc_block_count(sbi, curseg) \
2403 ((sbi)->block_count[(curseg)->alloc_type]++)
2404 #define stat_inc_inplace_blocks(sbi) \
2405 (atomic_inc(&(sbi)->inplace_count))
2406 #define stat_inc_atomic_write(inode) \
2407 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2408 #define stat_dec_atomic_write(inode) \
2409 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2410 #define stat_update_max_atomic_write(inode) \
2412 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2413 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2415 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2417 #define stat_inc_volatile_write(inode) \
2418 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2419 #define stat_dec_volatile_write(inode) \
2420 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2421 #define stat_update_max_volatile_write(inode) \
2423 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2424 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2426 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2428 #define stat_inc_seg_count(sbi, type, gc_type) \
2430 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2432 if (type == SUM_TYPE_DATA) { \
2434 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2437 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2441 #define stat_inc_tot_blk_count(si, blks) \
2442 (si->tot_blks += (blks))
2444 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2446 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2447 stat_inc_tot_blk_count(si, blks); \
2448 si->data_blks += (blks); \
2449 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
2452 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2454 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2455 stat_inc_tot_blk_count(si, blks); \
2456 si->node_blks += (blks); \
2457 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
2460 int f2fs_build_stats(struct f2fs_sb_info *sbi);
2461 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
2462 int __init f2fs_create_root_stats(void);
2463 void f2fs_destroy_root_stats(void);
2465 #define stat_inc_cp_count(si)
2466 #define stat_inc_bg_cp_count(si)
2467 #define stat_inc_call_count(si)
2468 #define stat_inc_bggc_count(si)
2469 #define stat_inc_dirty_inode(sbi, type)
2470 #define stat_dec_dirty_inode(sbi, type)
2471 #define stat_inc_total_hit(sb)
2472 #define stat_inc_rbtree_node_hit(sb)
2473 #define stat_inc_largest_node_hit(sbi)
2474 #define stat_inc_cached_node_hit(sbi)
2475 #define stat_inc_inline_xattr(inode)
2476 #define stat_dec_inline_xattr(inode)
2477 #define stat_inc_inline_inode(inode)
2478 #define stat_dec_inline_inode(inode)
2479 #define stat_inc_inline_dir(inode)
2480 #define stat_dec_inline_dir(inode)
2481 #define stat_inc_atomic_write(inode)
2482 #define stat_dec_atomic_write(inode)
2483 #define stat_update_max_atomic_write(inode)
2484 #define stat_inc_volatile_write(inode)
2485 #define stat_dec_volatile_write(inode)
2486 #define stat_update_max_volatile_write(inode)
2487 #define stat_inc_seg_type(sbi, curseg)
2488 #define stat_inc_block_count(sbi, curseg)
2489 #define stat_inc_inplace_blocks(sbi)
2490 #define stat_inc_seg_count(sbi, type, gc_type)
2491 #define stat_inc_tot_blk_count(si, blks)
2492 #define stat_inc_data_blk_count(sbi, blks, gc_type)
2493 #define stat_inc_node_blk_count(sbi, blks, gc_type)
2495 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2496 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
2497 static inline int __init f2fs_create_root_stats(void) { return 0; }
2498 static inline void f2fs_destroy_root_stats(void) { }
2501 extern const struct file_operations f2fs_dir_operations;
2502 extern const struct file_operations f2fs_file_operations;
2503 extern const struct inode_operations f2fs_file_inode_operations;
2504 extern const struct address_space_operations f2fs_dblock_aops;
2505 extern const struct address_space_operations f2fs_node_aops;
2506 extern const struct address_space_operations f2fs_meta_aops;
2507 extern const struct inode_operations f2fs_dir_inode_operations;
2508 extern const struct inode_operations f2fs_symlink_inode_operations;
2509 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
2510 extern const struct inode_operations f2fs_special_inode_operations;
2511 extern struct kmem_cache *inode_entry_slab;
2516 bool f2fs_may_inline_data(struct inode *inode);
2517 bool f2fs_may_inline_dentry(struct inode *inode);
2518 void read_inline_data(struct page *page, struct page *ipage);
2519 void truncate_inline_inode(struct inode *inode, struct page *ipage, u64 from);
2520 int f2fs_read_inline_data(struct inode *inode, struct page *page);
2521 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
2522 int f2fs_convert_inline_inode(struct inode *inode);
2523 int f2fs_write_inline_data(struct inode *inode, struct page *page);
2524 bool recover_inline_data(struct inode *inode, struct page *npage);
2525 struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
2526 struct fscrypt_name *fname, struct page **res_page);
2527 int make_empty_inline_dir(struct inode *inode, struct inode *parent,
2528 struct page *ipage);
2529 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
2530 const struct qstr *orig_name,
2531 struct inode *inode, nid_t ino, umode_t mode);
2532 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
2533 struct inode *dir, struct inode *inode);
2534 bool f2fs_empty_inline_dir(struct inode *dir);
2535 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
2536 struct fscrypt_str *fstr);
2537 int f2fs_inline_data_fiemap(struct inode *inode,
2538 struct fiemap_extent_info *fieinfo,
2539 __u64 start, __u64 len);
2544 unsigned long f2fs_shrink_count(struct shrinker *shrink,
2545 struct shrink_control *sc);
2546 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
2547 struct shrink_control *sc);
2548 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
2549 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
2554 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
2555 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
2556 void f2fs_drop_extent_tree(struct inode *inode);
2557 unsigned int f2fs_destroy_extent_node(struct inode *inode);
2558 void f2fs_destroy_extent_tree(struct inode *inode);
2559 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
2560 struct extent_info *ei);
2561 void f2fs_update_extent_cache(struct dnode_of_data *dn);
2562 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2563 pgoff_t fofs, block_t blkaddr, unsigned int len);
2564 void init_extent_cache_info(struct f2fs_sb_info *sbi);
2565 int __init create_extent_cache(void);
2566 void destroy_extent_cache(void);
2571 static inline bool f2fs_encrypted_inode(struct inode *inode)
2573 return file_is_encrypt(inode);
2576 static inline void f2fs_set_encrypted_inode(struct inode *inode)
2578 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2579 file_set_encrypt(inode);
2583 static inline bool f2fs_bio_encrypted(struct bio *bio)
2585 return bio->bi_private != NULL;
2588 static inline int f2fs_sb_has_crypto(struct super_block *sb)
2590 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
2593 static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
2595 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
2598 #ifdef CONFIG_BLK_DEV_ZONED
2599 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
2600 struct block_device *bdev, block_t blkaddr)
2602 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
2605 for (i = 0; i < sbi->s_ndevs; i++)
2606 if (FDEV(i).bdev == bdev)
2607 return FDEV(i).blkz_type[zno];
2612 static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
2614 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
2616 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
2619 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2621 clear_opt(sbi, ADAPTIVE);
2622 clear_opt(sbi, LFS);
2625 case F2FS_MOUNT_ADAPTIVE:
2626 set_opt(sbi, ADAPTIVE);
2628 case F2FS_MOUNT_LFS:
2634 static inline bool f2fs_may_encrypt(struct inode *inode)
2636 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2637 umode_t mode = inode->i_mode;
2639 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));