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
58 struct f2fs_fault_info {
60 unsigned int inject_rate;
61 unsigned int inject_type;
64 extern char *fault_name[FAULT_MAX];
65 #define IS_FAULT_SET(fi, type) (fi->inject_type & (1 << (type)))
71 #define F2FS_MOUNT_BG_GC 0x00000001
72 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
73 #define F2FS_MOUNT_DISCARD 0x00000004
74 #define F2FS_MOUNT_NOHEAP 0x00000008
75 #define F2FS_MOUNT_XATTR_USER 0x00000010
76 #define F2FS_MOUNT_POSIX_ACL 0x00000020
77 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
78 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
79 #define F2FS_MOUNT_INLINE_DATA 0x00000100
80 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
81 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
82 #define F2FS_MOUNT_NOBARRIER 0x00000800
83 #define F2FS_MOUNT_FASTBOOT 0x00001000
84 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
85 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
86 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
87 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
88 #define F2FS_MOUNT_ADAPTIVE 0x00020000
89 #define F2FS_MOUNT_LFS 0x00040000
91 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
92 #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
93 #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
95 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
96 typecheck(unsigned long long, b) && \
97 ((long long)((a) - (b)) > 0))
99 typedef u32 block_t; /*
100 * should not change u32, since it is the on-disk block
101 * address format, __le32.
105 struct f2fs_mount_info {
109 #define F2FS_FEATURE_ENCRYPT 0x0001
110 #define F2FS_FEATURE_BLKZONED 0x0002
112 #define F2FS_HAS_FEATURE(sb, mask) \
113 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
114 #define F2FS_SET_FEATURE(sb, mask) \
115 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
116 #define F2FS_CLEAR_FEATURE(sb, mask) \
117 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
120 * For checkpoint manager
135 #define DEF_BATCHED_TRIM_SECTIONS 2048
136 #define BATCHED_TRIM_SEGMENTS(sbi) \
137 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
138 #define BATCHED_TRIM_BLOCKS(sbi) \
139 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
140 #define MAX_DISCARD_BLOCKS(sbi) \
141 ((1 << (sbi)->log_blocks_per_seg) * (sbi)->segs_per_sec)
142 #define DISCARD_ISSUE_RATE 8
143 #define DEF_CP_INTERVAL 60 /* 60 secs */
144 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
155 * For CP/NAT/SIT/SSA readahead
165 /* for the list of ino */
167 ORPHAN_INO, /* for orphan ino list */
168 APPEND_INO, /* for append ino list */
169 UPDATE_INO, /* for update ino list */
170 MAX_INO_ENTRY, /* max. list */
174 struct list_head list; /* list head */
175 nid_t ino; /* inode number */
178 /* for the list of inodes to be GCed */
180 struct list_head list; /* list head */
181 struct inode *inode; /* vfs inode pointer */
184 /* for the list of blockaddresses to be discarded */
185 struct discard_entry {
186 struct list_head list; /* list head */
187 block_t blkaddr; /* block address to be discarded */
188 int len; /* # of consecutive blocks of the discard */
198 struct list_head list; /* command list */
199 struct completion wait; /* compleation */
200 block_t lstart; /* logical start address */
201 block_t len; /* length */
202 struct bio *bio; /* bio */
203 int state; /* state */
206 struct discard_cmd_control {
207 struct task_struct *f2fs_issue_discard; /* discard thread */
208 struct list_head discard_entry_list; /* 4KB discard entry list */
209 int nr_discards; /* # of discards in the list */
210 struct list_head discard_cmd_list; /* discard cmd list */
211 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
212 struct mutex cmd_lock;
213 int max_discards; /* max. discards to be issued */
214 atomic_t submit_discard; /* # of issued discard */
217 /* for the list of fsync inodes, used only during recovery */
218 struct fsync_inode_entry {
219 struct list_head list; /* list head */
220 struct inode *inode; /* vfs inode pointer */
221 block_t blkaddr; /* block address locating the last fsync */
222 block_t last_dentry; /* block address locating the last dentry */
225 #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
226 #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
228 #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
229 #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
230 #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
231 #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
233 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
234 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
236 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
238 int before = nats_in_cursum(journal);
240 journal->n_nats = cpu_to_le16(before + i);
244 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
246 int before = sits_in_cursum(journal);
248 journal->n_sits = cpu_to_le16(before + i);
252 static inline bool __has_cursum_space(struct f2fs_journal *journal,
255 if (type == NAT_JOURNAL)
256 return size <= MAX_NAT_JENTRIES(journal);
257 return size <= MAX_SIT_JENTRIES(journal);
263 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
264 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
265 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
267 #define F2FS_IOCTL_MAGIC 0xf5
268 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
269 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
270 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
271 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
272 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
273 #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
274 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
275 #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
276 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
277 struct f2fs_move_range)
279 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
280 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
281 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
284 * should be same as XFS_IOC_GOINGDOWN.
285 * Flags for going down operation used by FS_IOC_GOINGDOWN
287 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
288 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
289 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
290 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
291 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
293 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
295 * ioctl commands in 32 bit emulation
297 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
298 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
299 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
302 struct f2fs_defragment {
307 struct f2fs_move_range {
308 u32 dst_fd; /* destination fd */
309 u64 pos_in; /* start position in src_fd */
310 u64 pos_out; /* start position in dst_fd */
311 u64 len; /* size to move */
315 * For INODE and NODE manager
317 /* for directory operations */
318 struct f2fs_dentry_ptr {
321 struct f2fs_dir_entry *dentry;
322 __u8 (*filename)[F2FS_SLOT_LEN];
326 static inline void make_dentry_ptr(struct inode *inode,
327 struct f2fs_dentry_ptr *d, void *src, int type)
332 struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src;
334 d->max = NR_DENTRY_IN_BLOCK;
335 d->bitmap = &t->dentry_bitmap;
336 d->dentry = t->dentry;
337 d->filename = t->filename;
339 struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src;
341 d->max = NR_INLINE_DENTRY;
342 d->bitmap = &t->dentry_bitmap;
343 d->dentry = t->dentry;
344 d->filename = t->filename;
349 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
350 * as its node offset to distinguish from index node blocks.
351 * But some bits are used to mark the node block.
353 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
356 ALLOC_NODE, /* allocate a new node page if needed */
357 LOOKUP_NODE, /* look up a node without readahead */
359 * look up a node with readahead called
364 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
366 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
368 /* vector size for gang look-up from extent cache that consists of radix tree */
369 #define EXT_TREE_VEC_SIZE 64
371 /* for in-memory extent cache entry */
372 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
374 /* number of extent info in extent cache we try to shrink */
375 #define EXTENT_CACHE_SHRINK_NUMBER 128
378 unsigned int fofs; /* start offset in a file */
379 u32 blk; /* start block address of the extent */
380 unsigned int len; /* length of the extent */
384 struct rb_node rb_node; /* rb node located in rb-tree */
385 struct list_head list; /* node in global extent list of sbi */
386 struct extent_info ei; /* extent info */
387 struct extent_tree *et; /* extent tree pointer */
391 nid_t ino; /* inode number */
392 struct rb_root root; /* root of extent info rb-tree */
393 struct extent_node *cached_en; /* recently accessed extent node */
394 struct extent_info largest; /* largested extent info */
395 struct list_head list; /* to be used by sbi->zombie_list */
396 rwlock_t lock; /* protect extent info rb-tree */
397 atomic_t node_cnt; /* # of extent node in rb-tree*/
401 * This structure is taken from ext4_map_blocks.
403 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
405 #define F2FS_MAP_NEW (1 << BH_New)
406 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
407 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
408 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
411 struct f2fs_map_blocks {
415 unsigned int m_flags;
416 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
419 /* for flag in get_data_block */
420 #define F2FS_GET_BLOCK_READ 0
421 #define F2FS_GET_BLOCK_DIO 1
422 #define F2FS_GET_BLOCK_FIEMAP 2
423 #define F2FS_GET_BLOCK_BMAP 3
424 #define F2FS_GET_BLOCK_PRE_DIO 4
425 #define F2FS_GET_BLOCK_PRE_AIO 5
428 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
430 #define FADVISE_COLD_BIT 0x01
431 #define FADVISE_LOST_PINO_BIT 0x02
432 #define FADVISE_ENCRYPT_BIT 0x04
433 #define FADVISE_ENC_NAME_BIT 0x08
434 #define FADVISE_KEEP_SIZE_BIT 0x10
436 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
437 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
438 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
439 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
440 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
441 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
442 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
443 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
444 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
445 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
446 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
447 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
448 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
450 #define DEF_DIR_LEVEL 0
452 struct f2fs_inode_info {
453 struct inode vfs_inode; /* serve a vfs inode */
454 unsigned long i_flags; /* keep an inode flags for ioctl */
455 unsigned char i_advise; /* use to give file attribute hints */
456 unsigned char i_dir_level; /* use for dentry level for large dir */
457 unsigned int i_current_depth; /* use only in directory structure */
458 unsigned int i_pino; /* parent inode number */
459 umode_t i_acl_mode; /* keep file acl mode temporarily */
461 /* Use below internally in f2fs*/
462 unsigned long flags; /* use to pass per-file flags */
463 struct rw_semaphore i_sem; /* protect fi info */
464 atomic_t dirty_pages; /* # of dirty pages */
465 f2fs_hash_t chash; /* hash value of given file name */
466 unsigned int clevel; /* maximum level of given file name */
467 struct task_struct *task; /* lookup and create consistency */
468 nid_t i_xattr_nid; /* node id that contains xattrs */
469 loff_t last_disk_size; /* lastly written file size */
471 struct list_head dirty_list; /* dirty list for dirs and files */
472 struct list_head gdirty_list; /* linked in global dirty list */
473 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
474 struct mutex inmem_lock; /* lock for inmemory pages */
475 struct extent_tree *extent_tree; /* cached extent_tree entry */
476 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
479 static inline void get_extent_info(struct extent_info *ext,
480 struct f2fs_extent *i_ext)
482 ext->fofs = le32_to_cpu(i_ext->fofs);
483 ext->blk = le32_to_cpu(i_ext->blk);
484 ext->len = le32_to_cpu(i_ext->len);
487 static inline void set_raw_extent(struct extent_info *ext,
488 struct f2fs_extent *i_ext)
490 i_ext->fofs = cpu_to_le32(ext->fofs);
491 i_ext->blk = cpu_to_le32(ext->blk);
492 i_ext->len = cpu_to_le32(ext->len);
495 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
496 u32 blk, unsigned int len)
503 static inline bool __is_extent_mergeable(struct extent_info *back,
504 struct extent_info *front)
506 return (back->fofs + back->len == front->fofs &&
507 back->blk + back->len == front->blk);
510 static inline bool __is_back_mergeable(struct extent_info *cur,
511 struct extent_info *back)
513 return __is_extent_mergeable(back, cur);
516 static inline bool __is_front_mergeable(struct extent_info *cur,
517 struct extent_info *front)
519 return __is_extent_mergeable(cur, front);
522 extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
523 static inline void __try_update_largest_extent(struct inode *inode,
524 struct extent_tree *et, struct extent_node *en)
526 if (en->ei.len > et->largest.len) {
527 et->largest = en->ei;
528 f2fs_mark_inode_dirty_sync(inode, true);
538 struct f2fs_nm_info {
539 block_t nat_blkaddr; /* base disk address of NAT */
540 nid_t max_nid; /* maximum possible node ids */
541 nid_t available_nids; /* # of available node ids */
542 nid_t next_scan_nid; /* the next nid to be scanned */
543 unsigned int ram_thresh; /* control the memory footprint */
544 unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
545 unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
547 /* NAT cache management */
548 struct radix_tree_root nat_root;/* root of the nat entry cache */
549 struct radix_tree_root nat_set_root;/* root of the nat set cache */
550 struct rw_semaphore nat_tree_lock; /* protect nat_tree_lock */
551 struct list_head nat_entries; /* cached nat entry list (clean) */
552 unsigned int nat_cnt; /* the # of cached nat entries */
553 unsigned int dirty_nat_cnt; /* total num of nat entries in set */
554 unsigned int nat_blocks; /* # of nat blocks */
556 /* free node ids management */
557 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
558 struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
559 unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */
560 spinlock_t nid_list_lock; /* protect nid lists ops */
561 struct mutex build_lock; /* lock for build free nids */
562 unsigned char (*free_nid_bitmap)[NAT_ENTRY_BITMAP_SIZE];
563 unsigned char *nat_block_bitmap;
566 char *nat_bitmap; /* NAT bitmap pointer */
568 unsigned int nat_bits_blocks; /* # of nat bits blocks */
569 unsigned char *nat_bits; /* NAT bits blocks */
570 unsigned char *full_nat_bits; /* full NAT pages */
571 unsigned char *empty_nat_bits; /* empty NAT pages */
572 #ifdef CONFIG_F2FS_CHECK_FS
573 char *nat_bitmap_mir; /* NAT bitmap mirror */
575 int bitmap_size; /* bitmap size */
579 * this structure is used as one of function parameters.
580 * all the information are dedicated to a given direct node block determined
581 * by the data offset in a file.
583 struct dnode_of_data {
584 struct inode *inode; /* vfs inode pointer */
585 struct page *inode_page; /* its inode page, NULL is possible */
586 struct page *node_page; /* cached direct node page */
587 nid_t nid; /* node id of the direct node block */
588 unsigned int ofs_in_node; /* data offset in the node page */
589 bool inode_page_locked; /* inode page is locked or not */
590 bool node_changed; /* is node block changed */
591 char cur_level; /* level of hole node page */
592 char max_level; /* level of current page located */
593 block_t data_blkaddr; /* block address of the node block */
596 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
597 struct page *ipage, struct page *npage, nid_t nid)
599 memset(dn, 0, sizeof(*dn));
601 dn->inode_page = ipage;
602 dn->node_page = npage;
609 * By default, there are 6 active log areas across the whole main area.
610 * When considering hot and cold data separation to reduce cleaning overhead,
611 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
613 * In the current design, you should not change the numbers intentionally.
614 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
615 * logs individually according to the underlying devices. (default: 6)
616 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
617 * data and 8 for node logs.
619 #define NR_CURSEG_DATA_TYPE (3)
620 #define NR_CURSEG_NODE_TYPE (3)
621 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
624 CURSEG_HOT_DATA = 0, /* directory entry blocks */
625 CURSEG_WARM_DATA, /* data blocks */
626 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
627 CURSEG_HOT_NODE, /* direct node blocks of directory files */
628 CURSEG_WARM_NODE, /* direct node blocks of normal files */
629 CURSEG_COLD_NODE, /* indirect node blocks */
634 struct completion wait;
635 struct llist_node llnode;
639 struct flush_cmd_control {
640 struct task_struct *f2fs_issue_flush; /* flush thread */
641 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
642 atomic_t submit_flush; /* # of issued flushes */
643 struct llist_head issue_list; /* list for command issue */
644 struct llist_node *dispatch_list; /* list for command dispatch */
647 struct f2fs_sm_info {
648 struct sit_info *sit_info; /* whole segment information */
649 struct free_segmap_info *free_info; /* free segment information */
650 struct dirty_seglist_info *dirty_info; /* dirty segment information */
651 struct curseg_info *curseg_array; /* active segment information */
653 block_t seg0_blkaddr; /* block address of 0'th segment */
654 block_t main_blkaddr; /* start block address of main area */
655 block_t ssa_blkaddr; /* start block address of SSA area */
657 unsigned int segment_count; /* total # of segments */
658 unsigned int main_segments; /* # of segments in main area */
659 unsigned int reserved_segments; /* # of reserved segments */
660 unsigned int ovp_segments; /* # of overprovision segments */
662 /* a threshold to reclaim prefree segments */
663 unsigned int rec_prefree_segments;
665 /* for batched trimming */
666 unsigned int trim_sections; /* # of sections to trim */
668 struct list_head sit_entry_set; /* sit entry set list */
670 unsigned int ipu_policy; /* in-place-update policy */
671 unsigned int min_ipu_util; /* in-place-update threshold */
672 unsigned int min_fsync_blocks; /* threshold for fsync */
674 /* for flush command control */
675 struct flush_cmd_control *fcc_info;
677 /* for discard command control */
678 struct discard_cmd_control *dcc_info;
685 * COUNT_TYPE for monitoring
687 * f2fs monitors the number of several block types such as on-writeback,
688 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
690 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
704 * The below are the page types of bios used in submit_bio().
705 * The available types are:
706 * DATA User data pages. It operates as async mode.
707 * NODE Node pages. It operates as async mode.
708 * META FS metadata pages such as SIT, NAT, CP.
709 * NR_PAGE_TYPE The number of page types.
710 * META_FLUSH Make sure the previous pages are written
711 * with waiting the bio's completion
712 * ... Only can be used with META.
714 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
721 INMEM, /* the below types are used by tracepoints only. */
728 struct f2fs_io_info {
729 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
730 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
731 int op; /* contains REQ_OP_ */
732 int op_flags; /* req_flag_bits */
733 block_t new_blkaddr; /* new block address to be written */
734 block_t old_blkaddr; /* old block address before Cow */
735 struct page *page; /* page to be written */
736 struct page *encrypted_page; /* encrypted page */
737 bool submitted; /* indicate IO submission */
740 #define is_read_io(rw) (rw == READ)
741 struct f2fs_bio_info {
742 struct f2fs_sb_info *sbi; /* f2fs superblock */
743 struct bio *bio; /* bios to merge */
744 sector_t last_block_in_bio; /* last block number */
745 struct f2fs_io_info fio; /* store buffered io info. */
746 struct rw_semaphore io_rwsem; /* blocking op for bio */
749 #define FDEV(i) (sbi->devs[i])
750 #define RDEV(i) (raw_super->devs[i])
751 struct f2fs_dev_info {
752 struct block_device *bdev;
753 char path[MAX_PATH_LEN];
754 unsigned int total_segments;
757 #ifdef CONFIG_BLK_DEV_ZONED
758 unsigned int nr_blkz; /* Total number of zones */
759 u8 *blkz_type; /* Array of zones type */
764 DIR_INODE, /* for dirty dir inode */
765 FILE_INODE, /* for dirty regular/symlink inode */
766 DIRTY_META, /* for all dirtied inode metadata */
770 /* for inner inode cache management */
771 struct inode_management {
772 struct radix_tree_root ino_root; /* ino entry array */
773 spinlock_t ino_lock; /* for ino entry lock */
774 struct list_head ino_list; /* inode list head */
775 unsigned long ino_num; /* number of entries */
778 /* For s_flag in struct f2fs_sb_info */
780 SBI_IS_DIRTY, /* dirty flag for checkpoint */
781 SBI_IS_CLOSE, /* specify unmounting */
782 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
783 SBI_POR_DOING, /* recovery is doing or not */
784 SBI_NEED_SB_WRITE, /* need to recover superblock */
785 SBI_NEED_CP, /* need to checkpoint */
794 struct f2fs_sb_info {
795 struct super_block *sb; /* pointer to VFS super block */
796 struct proc_dir_entry *s_proc; /* proc entry */
797 struct f2fs_super_block *raw_super; /* raw super block pointer */
798 int valid_super_block; /* valid super block no */
799 unsigned long s_flag; /* flags for sbi */
801 #ifdef CONFIG_BLK_DEV_ZONED
802 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
803 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
806 /* for node-related operations */
807 struct f2fs_nm_info *nm_info; /* node manager */
808 struct inode *node_inode; /* cache node blocks */
810 /* for segment-related operations */
811 struct f2fs_sm_info *sm_info; /* segment manager */
813 /* for bio operations */
814 struct f2fs_bio_info read_io; /* for read bios */
815 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
816 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
817 int write_io_size_bits; /* Write IO size bits */
818 mempool_t *write_io_dummy; /* Dummy pages */
821 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
822 int cur_cp_pack; /* remain current cp pack */
823 spinlock_t cp_lock; /* for flag in ckpt */
824 struct inode *meta_inode; /* cache meta blocks */
825 struct mutex cp_mutex; /* checkpoint procedure lock */
826 struct rw_semaphore cp_rwsem; /* blocking FS operations */
827 struct rw_semaphore node_write; /* locking node writes */
828 wait_queue_head_t cp_wait;
829 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
830 long interval_time[MAX_TIME]; /* to store thresholds */
832 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
834 /* for orphan inode, use 0'th array */
835 unsigned int max_orphans; /* max orphan inodes */
837 /* for inode management */
838 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
839 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
841 /* for extent tree cache */
842 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
843 struct mutex extent_tree_lock; /* locking extent radix tree */
844 struct list_head extent_list; /* lru list for shrinker */
845 spinlock_t extent_lock; /* locking extent lru list */
846 atomic_t total_ext_tree; /* extent tree count */
847 struct list_head zombie_list; /* extent zombie tree list */
848 atomic_t total_zombie_tree; /* extent zombie tree count */
849 atomic_t total_ext_node; /* extent info count */
851 /* basic filesystem units */
852 unsigned int log_sectors_per_block; /* log2 sectors per block */
853 unsigned int log_blocksize; /* log2 block size */
854 unsigned int blocksize; /* block size */
855 unsigned int root_ino_num; /* root inode number*/
856 unsigned int node_ino_num; /* node inode number*/
857 unsigned int meta_ino_num; /* meta inode number*/
858 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
859 unsigned int blocks_per_seg; /* blocks per segment */
860 unsigned int segs_per_sec; /* segments per section */
861 unsigned int secs_per_zone; /* sections per zone */
862 unsigned int total_sections; /* total section count */
863 unsigned int total_node_count; /* total node block count */
864 unsigned int total_valid_node_count; /* valid node block count */
865 loff_t max_file_blocks; /* max block index of file */
866 int active_logs; /* # of active logs */
867 int dir_level; /* directory level */
869 block_t user_block_count; /* # of user blocks */
870 block_t total_valid_block_count; /* # of valid blocks */
871 block_t discard_blks; /* discard command candidats */
872 block_t last_valid_block_count; /* for recovery */
873 u32 s_next_generation; /* for NFS support */
875 /* # of pages, see count_type */
876 atomic_t nr_pages[NR_COUNT_TYPE];
877 /* # of allocated blocks */
878 struct percpu_counter alloc_valid_block_count;
880 /* valid inode count */
881 struct percpu_counter total_valid_inode_count;
883 struct f2fs_mount_info mount_opt; /* mount options */
885 /* for cleaning operations */
886 struct mutex gc_mutex; /* mutex for GC */
887 struct f2fs_gc_kthread *gc_thread; /* GC thread */
888 unsigned int cur_victim_sec; /* current victim section num */
890 /* threshold for converting bg victims for fg */
893 /* maximum # of trials to find a victim segment for SSR and GC */
894 unsigned int max_victim_search;
897 * for stat information.
898 * one is for the LFS mode, and the other is for the SSR mode.
900 #ifdef CONFIG_F2FS_STAT_FS
901 struct f2fs_stat_info *stat_info; /* FS status information */
902 unsigned int segment_count[2]; /* # of allocated segments */
903 unsigned int block_count[2]; /* # of allocated blocks */
904 atomic_t inplace_count; /* # of inplace update */
905 atomic64_t total_hit_ext; /* # of lookup extent cache */
906 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
907 atomic64_t read_hit_largest; /* # of hit largest extent node */
908 atomic64_t read_hit_cached; /* # of hit cached extent node */
909 atomic_t inline_xattr; /* # of inline_xattr inodes */
910 atomic_t inline_inode; /* # of inline_data inodes */
911 atomic_t inline_dir; /* # of inline_dentry inodes */
912 atomic_t aw_cnt; /* # of atomic writes */
913 atomic_t max_aw_cnt; /* max # of atomic writes */
914 int bg_gc; /* background gc calls */
915 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
917 unsigned int last_victim[2]; /* last victim segment # */
918 spinlock_t stat_lock; /* lock for stat operations */
920 /* For sysfs suppport */
921 struct kobject s_kobj;
922 struct completion s_kobj_unregister;
924 /* For shrinker support */
925 struct list_head s_list;
926 int s_ndevs; /* number of devices */
927 struct f2fs_dev_info *devs; /* for device list */
928 struct mutex umount_mutex;
929 unsigned int shrinker_run_no;
931 /* For write statistics */
932 u64 sectors_written_start;
935 /* Reference to checksum algorithm driver via cryptoapi */
936 struct crypto_shash *s_chksum_driver;
938 /* For fault injection */
939 #ifdef CONFIG_F2FS_FAULT_INJECTION
940 struct f2fs_fault_info fault_info;
944 #ifdef CONFIG_F2FS_FAULT_INJECTION
945 #define f2fs_show_injection_info(type) \
946 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
947 KERN_INFO, fault_name[type], \
948 __func__, __builtin_return_address(0))
949 static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)
951 struct f2fs_fault_info *ffi = &sbi->fault_info;
953 if (!ffi->inject_rate)
956 if (!IS_FAULT_SET(ffi, type))
959 atomic_inc(&ffi->inject_ops);
960 if (atomic_read(&ffi->inject_ops) >= ffi->inject_rate) {
961 atomic_set(&ffi->inject_ops, 0);
968 /* For write statistics. Suppose sector size is 512 bytes,
969 * and the return value is in kbytes. s is of struct f2fs_sb_info.
971 #define BD_PART_WRITTEN(s) \
972 (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
973 s->sectors_written_start) >> 1)
975 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
977 sbi->last_time[type] = jiffies;
980 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
982 struct timespec ts = {sbi->interval_time[type], 0};
983 unsigned long interval = timespec_to_jiffies(&ts);
985 return time_after(jiffies, sbi->last_time[type] + interval);
988 static inline bool is_idle(struct f2fs_sb_info *sbi)
990 struct block_device *bdev = sbi->sb->s_bdev;
991 struct request_queue *q = bdev_get_queue(bdev);
992 struct request_list *rl = &q->root_rl;
994 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
997 return f2fs_time_over(sbi, REQ_TIME);
1003 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1004 unsigned int length)
1006 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
1007 u32 *ctx = (u32 *)shash_desc_ctx(shash);
1010 shash->tfm = sbi->s_chksum_driver;
1012 *ctx = F2FS_SUPER_MAGIC;
1014 err = crypto_shash_update(shash, address, length);
1020 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1021 void *buf, size_t buf_size)
1023 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1026 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1028 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1031 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1033 return sb->s_fs_info;
1036 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1038 return F2FS_SB(inode->i_sb);
1041 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1043 return F2FS_I_SB(mapping->host);
1046 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1048 return F2FS_M_SB(page->mapping);
1051 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1053 return (struct f2fs_super_block *)(sbi->raw_super);
1056 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1058 return (struct f2fs_checkpoint *)(sbi->ckpt);
1061 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1063 return (struct f2fs_node *)page_address(page);
1066 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1068 return &((struct f2fs_node *)page_address(page))->i;
1071 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1073 return (struct f2fs_nm_info *)(sbi->nm_info);
1076 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1078 return (struct f2fs_sm_info *)(sbi->sm_info);
1081 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1083 return (struct sit_info *)(SM_I(sbi)->sit_info);
1086 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1088 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1091 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1093 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1096 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1098 return sbi->meta_inode->i_mapping;
1101 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1103 return sbi->node_inode->i_mapping;
1106 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1108 return test_bit(type, &sbi->s_flag);
1111 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1113 set_bit(type, &sbi->s_flag);
1116 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1118 clear_bit(type, &sbi->s_flag);
1121 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1123 return le64_to_cpu(cp->checkpoint_ver);
1126 static inline __u64 cur_cp_crc(struct f2fs_checkpoint *cp)
1128 size_t crc_offset = le32_to_cpu(cp->checksum_offset);
1129 return le32_to_cpu(*((__le32 *)((unsigned char *)cp + crc_offset)));
1132 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1134 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1136 return ckpt_flags & f;
1139 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1141 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1144 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1146 unsigned int ckpt_flags;
1148 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1150 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1153 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1155 spin_lock(&sbi->cp_lock);
1156 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1157 spin_unlock(&sbi->cp_lock);
1160 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1162 unsigned int ckpt_flags;
1164 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1166 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1169 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1171 spin_lock(&sbi->cp_lock);
1172 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1173 spin_unlock(&sbi->cp_lock);
1176 static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
1178 set_sbi_flag(sbi, SBI_NEED_FSCK);
1181 spin_lock(&sbi->cp_lock);
1182 __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
1183 kfree(NM_I(sbi)->nat_bits);
1184 NM_I(sbi)->nat_bits = NULL;
1186 spin_unlock(&sbi->cp_lock);
1189 static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
1190 struct cp_control *cpc)
1192 bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
1194 return (cpc) ? (cpc->reason == CP_UMOUNT) && set : set;
1197 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1199 down_read(&sbi->cp_rwsem);
1202 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1204 up_read(&sbi->cp_rwsem);
1207 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1209 down_write(&sbi->cp_rwsem);
1212 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1214 up_write(&sbi->cp_rwsem);
1217 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1219 int reason = CP_SYNC;
1221 if (test_opt(sbi, FASTBOOT))
1222 reason = CP_FASTBOOT;
1223 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1228 static inline bool __remain_node_summaries(int reason)
1230 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1233 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1235 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1236 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1240 * Check whether the given nid is within node id range.
1242 static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
1244 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1246 if (unlikely(nid >= NM_I(sbi)->max_nid))
1251 #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1254 * Check whether the inode has blocks or not
1256 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1258 if (F2FS_I(inode)->i_xattr_nid)
1259 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
1261 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
1264 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1266 return ofs == XATTR_NODE_OFFSET;
1269 static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
1270 static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
1271 struct inode *inode, blkcnt_t *count)
1275 #ifdef CONFIG_F2FS_FAULT_INJECTION
1276 if (time_to_inject(sbi, FAULT_BLOCK)) {
1277 f2fs_show_injection_info(FAULT_BLOCK);
1282 * let's increase this in prior to actual block count change in order
1283 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1285 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1287 spin_lock(&sbi->stat_lock);
1288 sbi->total_valid_block_count += (block_t)(*count);
1289 if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) {
1290 diff = sbi->total_valid_block_count - sbi->user_block_count;
1292 sbi->total_valid_block_count = sbi->user_block_count;
1294 spin_unlock(&sbi->stat_lock);
1295 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
1299 spin_unlock(&sbi->stat_lock);
1301 f2fs_i_blocks_write(inode, *count, true);
1305 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1306 struct inode *inode,
1309 spin_lock(&sbi->stat_lock);
1310 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1311 f2fs_bug_on(sbi, inode->i_blocks < count);
1312 sbi->total_valid_block_count -= (block_t)count;
1313 spin_unlock(&sbi->stat_lock);
1314 f2fs_i_blocks_write(inode, count, false);
1317 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1319 atomic_inc(&sbi->nr_pages[count_type]);
1321 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1322 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1325 set_sbi_flag(sbi, SBI_IS_DIRTY);
1328 static inline void inode_inc_dirty_pages(struct inode *inode)
1330 atomic_inc(&F2FS_I(inode)->dirty_pages);
1331 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1332 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1335 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1337 atomic_dec(&sbi->nr_pages[count_type]);
1340 static inline void inode_dec_dirty_pages(struct inode *inode)
1342 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1343 !S_ISLNK(inode->i_mode))
1346 atomic_dec(&F2FS_I(inode)->dirty_pages);
1347 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1348 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1351 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1353 return atomic_read(&sbi->nr_pages[count_type]);
1356 static inline int get_dirty_pages(struct inode *inode)
1358 return atomic_read(&F2FS_I(inode)->dirty_pages);
1361 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1363 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1364 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1365 sbi->log_blocks_per_seg;
1367 return segs / sbi->segs_per_sec;
1370 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1372 return sbi->total_valid_block_count;
1375 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1377 return sbi->discard_blks;
1380 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1382 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1384 /* return NAT or SIT bitmap */
1385 if (flag == NAT_BITMAP)
1386 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1387 else if (flag == SIT_BITMAP)
1388 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1393 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1395 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1398 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1400 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1403 if (__cp_payload(sbi) > 0) {
1404 if (flag == NAT_BITMAP)
1405 return &ckpt->sit_nat_version_bitmap;
1407 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1409 offset = (flag == NAT_BITMAP) ?
1410 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1411 return &ckpt->sit_nat_version_bitmap + offset;
1415 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1417 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1419 if (sbi->cur_cp_pack == 2)
1420 start_addr += sbi->blocks_per_seg;
1424 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1426 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1428 if (sbi->cur_cp_pack == 1)
1429 start_addr += sbi->blocks_per_seg;
1433 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1435 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1438 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1440 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1443 static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
1444 struct inode *inode)
1446 block_t valid_block_count;
1447 unsigned int valid_node_count;
1449 spin_lock(&sbi->stat_lock);
1451 valid_block_count = sbi->total_valid_block_count + 1;
1452 if (unlikely(valid_block_count > sbi->user_block_count)) {
1453 spin_unlock(&sbi->stat_lock);
1457 valid_node_count = sbi->total_valid_node_count + 1;
1458 if (unlikely(valid_node_count > sbi->total_node_count)) {
1459 spin_unlock(&sbi->stat_lock);
1464 f2fs_i_blocks_write(inode, 1, true);
1466 sbi->total_valid_node_count++;
1467 sbi->total_valid_block_count++;
1468 spin_unlock(&sbi->stat_lock);
1470 percpu_counter_inc(&sbi->alloc_valid_block_count);
1474 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1475 struct inode *inode)
1477 spin_lock(&sbi->stat_lock);
1479 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1480 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1481 f2fs_bug_on(sbi, !inode->i_blocks);
1483 f2fs_i_blocks_write(inode, 1, false);
1484 sbi->total_valid_node_count--;
1485 sbi->total_valid_block_count--;
1487 spin_unlock(&sbi->stat_lock);
1490 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1492 return sbi->total_valid_node_count;
1495 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1497 percpu_counter_inc(&sbi->total_valid_inode_count);
1500 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1502 percpu_counter_dec(&sbi->total_valid_inode_count);
1505 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1507 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1510 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1511 pgoff_t index, bool for_write)
1513 #ifdef CONFIG_F2FS_FAULT_INJECTION
1514 struct page *page = find_lock_page(mapping, index);
1519 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC)) {
1520 f2fs_show_injection_info(FAULT_PAGE_ALLOC);
1525 return grab_cache_page(mapping, index);
1526 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1529 static inline void f2fs_copy_page(struct page *src, struct page *dst)
1531 char *src_kaddr = kmap(src);
1532 char *dst_kaddr = kmap(dst);
1534 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1539 static inline void f2fs_put_page(struct page *page, int unlock)
1545 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
1551 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1554 f2fs_put_page(dn->node_page, 1);
1555 if (dn->inode_page && dn->node_page != dn->inode_page)
1556 f2fs_put_page(dn->inode_page, 0);
1557 dn->node_page = NULL;
1558 dn->inode_page = NULL;
1561 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
1564 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
1567 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1572 entry = kmem_cache_alloc(cachep, flags);
1574 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
1578 static inline struct bio *f2fs_bio_alloc(int npages)
1582 /* No failure on bio allocation */
1583 bio = bio_alloc(GFP_NOIO, npages);
1585 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
1589 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1590 unsigned long index, void *item)
1592 while (radix_tree_insert(root, index, item))
1596 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1598 static inline bool IS_INODE(struct page *page)
1600 struct f2fs_node *p = F2FS_NODE(page);
1602 return RAW_IS_INODE(p);
1605 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1607 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1610 static inline block_t datablock_addr(struct page *node_page,
1611 unsigned int offset)
1613 struct f2fs_node *raw_node;
1616 raw_node = F2FS_NODE(node_page);
1617 addr_array = blkaddr_in_node(raw_node);
1618 return le32_to_cpu(addr_array[offset]);
1621 static inline int f2fs_test_bit(unsigned int nr, char *addr)
1626 mask = 1 << (7 - (nr & 0x07));
1627 return mask & *addr;
1630 static inline void f2fs_set_bit(unsigned int nr, char *addr)
1635 mask = 1 << (7 - (nr & 0x07));
1639 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1644 mask = 1 << (7 - (nr & 0x07));
1648 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
1654 mask = 1 << (7 - (nr & 0x07));
1660 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
1666 mask = 1 << (7 - (nr & 0x07));
1672 static inline void f2fs_change_bit(unsigned int nr, char *addr)
1677 mask = 1 << (7 - (nr & 0x07));
1681 /* used for f2fs_inode_info->flags */
1683 FI_NEW_INODE, /* indicate newly allocated inode */
1684 FI_DIRTY_INODE, /* indicate inode is dirty or not */
1685 FI_AUTO_RECOVER, /* indicate inode is recoverable */
1686 FI_DIRTY_DIR, /* indicate directory has dirty pages */
1687 FI_INC_LINK, /* need to increment i_nlink */
1688 FI_ACL_MODE, /* indicate acl mode */
1689 FI_NO_ALLOC, /* should not allocate any blocks */
1690 FI_FREE_NID, /* free allocated nide */
1691 FI_NO_EXTENT, /* not to use the extent cache */
1692 FI_INLINE_XATTR, /* used for inline xattr */
1693 FI_INLINE_DATA, /* used for inline data*/
1694 FI_INLINE_DENTRY, /* used for inline dentry */
1695 FI_APPEND_WRITE, /* inode has appended data */
1696 FI_UPDATE_WRITE, /* inode has in-place-update data */
1697 FI_NEED_IPU, /* used for ipu per file */
1698 FI_ATOMIC_FILE, /* indicate atomic file */
1699 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
1700 FI_VOLATILE_FILE, /* indicate volatile file */
1701 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1702 FI_DROP_CACHE, /* drop dirty page cache */
1703 FI_DATA_EXIST, /* indicate data exists */
1704 FI_INLINE_DOTS, /* indicate inline dot dentries */
1705 FI_DO_DEFRAG, /* indicate defragment is running */
1706 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
1707 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
1710 static inline void __mark_inode_dirty_flag(struct inode *inode,
1714 case FI_INLINE_XATTR:
1715 case FI_INLINE_DATA:
1716 case FI_INLINE_DENTRY:
1720 case FI_INLINE_DOTS:
1721 f2fs_mark_inode_dirty_sync(inode, true);
1725 static inline void set_inode_flag(struct inode *inode, int flag)
1727 if (!test_bit(flag, &F2FS_I(inode)->flags))
1728 set_bit(flag, &F2FS_I(inode)->flags);
1729 __mark_inode_dirty_flag(inode, flag, true);
1732 static inline int is_inode_flag_set(struct inode *inode, int flag)
1734 return test_bit(flag, &F2FS_I(inode)->flags);
1737 static inline void clear_inode_flag(struct inode *inode, int flag)
1739 if (test_bit(flag, &F2FS_I(inode)->flags))
1740 clear_bit(flag, &F2FS_I(inode)->flags);
1741 __mark_inode_dirty_flag(inode, flag, false);
1744 static inline void set_acl_inode(struct inode *inode, umode_t mode)
1746 F2FS_I(inode)->i_acl_mode = mode;
1747 set_inode_flag(inode, FI_ACL_MODE);
1748 f2fs_mark_inode_dirty_sync(inode, false);
1751 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
1757 f2fs_mark_inode_dirty_sync(inode, true);
1760 static inline void f2fs_i_blocks_write(struct inode *inode,
1761 blkcnt_t diff, bool add)
1763 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1764 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1766 inode->i_blocks = add ? inode->i_blocks + diff :
1767 inode->i_blocks - diff;
1768 f2fs_mark_inode_dirty_sync(inode, true);
1769 if (clean || recover)
1770 set_inode_flag(inode, FI_AUTO_RECOVER);
1773 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1775 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1776 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1778 if (i_size_read(inode) == i_size)
1781 i_size_write(inode, i_size);
1782 f2fs_mark_inode_dirty_sync(inode, true);
1783 if (clean || recover)
1784 set_inode_flag(inode, FI_AUTO_RECOVER);
1787 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
1789 F2FS_I(inode)->i_current_depth = depth;
1790 f2fs_mark_inode_dirty_sync(inode, true);
1793 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
1795 F2FS_I(inode)->i_xattr_nid = xnid;
1796 f2fs_mark_inode_dirty_sync(inode, true);
1799 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1801 F2FS_I(inode)->i_pino = pino;
1802 f2fs_mark_inode_dirty_sync(inode, true);
1805 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
1807 struct f2fs_inode_info *fi = F2FS_I(inode);
1809 if (ri->i_inline & F2FS_INLINE_XATTR)
1810 set_bit(FI_INLINE_XATTR, &fi->flags);
1811 if (ri->i_inline & F2FS_INLINE_DATA)
1812 set_bit(FI_INLINE_DATA, &fi->flags);
1813 if (ri->i_inline & F2FS_INLINE_DENTRY)
1814 set_bit(FI_INLINE_DENTRY, &fi->flags);
1815 if (ri->i_inline & F2FS_DATA_EXIST)
1816 set_bit(FI_DATA_EXIST, &fi->flags);
1817 if (ri->i_inline & F2FS_INLINE_DOTS)
1818 set_bit(FI_INLINE_DOTS, &fi->flags);
1821 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
1825 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
1826 ri->i_inline |= F2FS_INLINE_XATTR;
1827 if (is_inode_flag_set(inode, FI_INLINE_DATA))
1828 ri->i_inline |= F2FS_INLINE_DATA;
1829 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
1830 ri->i_inline |= F2FS_INLINE_DENTRY;
1831 if (is_inode_flag_set(inode, FI_DATA_EXIST))
1832 ri->i_inline |= F2FS_DATA_EXIST;
1833 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
1834 ri->i_inline |= F2FS_INLINE_DOTS;
1837 static inline int f2fs_has_inline_xattr(struct inode *inode)
1839 return is_inode_flag_set(inode, FI_INLINE_XATTR);
1842 static inline unsigned int addrs_per_inode(struct inode *inode)
1844 if (f2fs_has_inline_xattr(inode))
1845 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1846 return DEF_ADDRS_PER_INODE;
1849 static inline void *inline_xattr_addr(struct page *page)
1851 struct f2fs_inode *ri = F2FS_INODE(page);
1853 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1854 F2FS_INLINE_XATTR_ADDRS]);
1857 static inline int inline_xattr_size(struct inode *inode)
1859 if (f2fs_has_inline_xattr(inode))
1860 return F2FS_INLINE_XATTR_ADDRS << 2;
1865 static inline int f2fs_has_inline_data(struct inode *inode)
1867 return is_inode_flag_set(inode, FI_INLINE_DATA);
1870 static inline void f2fs_clear_inline_inode(struct inode *inode)
1872 clear_inode_flag(inode, FI_INLINE_DATA);
1873 clear_inode_flag(inode, FI_DATA_EXIST);
1876 static inline int f2fs_exist_data(struct inode *inode)
1878 return is_inode_flag_set(inode, FI_DATA_EXIST);
1881 static inline int f2fs_has_inline_dots(struct inode *inode)
1883 return is_inode_flag_set(inode, FI_INLINE_DOTS);
1886 static inline bool f2fs_is_atomic_file(struct inode *inode)
1888 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
1891 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
1893 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
1896 static inline bool f2fs_is_volatile_file(struct inode *inode)
1898 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
1901 static inline bool f2fs_is_first_block_written(struct inode *inode)
1903 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
1906 static inline bool f2fs_is_drop_cache(struct inode *inode)
1908 return is_inode_flag_set(inode, FI_DROP_CACHE);
1911 static inline void *inline_data_addr(struct page *page)
1913 struct f2fs_inode *ri = F2FS_INODE(page);
1915 return (void *)&(ri->i_addr[1]);
1918 static inline int f2fs_has_inline_dentry(struct inode *inode)
1920 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
1923 static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1925 if (!f2fs_has_inline_dentry(dir))
1929 static inline int is_file(struct inode *inode, int type)
1931 return F2FS_I(inode)->i_advise & type;
1934 static inline void set_file(struct inode *inode, int type)
1936 F2FS_I(inode)->i_advise |= type;
1937 f2fs_mark_inode_dirty_sync(inode, true);
1940 static inline void clear_file(struct inode *inode, int type)
1942 F2FS_I(inode)->i_advise &= ~type;
1943 f2fs_mark_inode_dirty_sync(inode, true);
1946 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
1949 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1952 spin_lock(&sbi->inode_lock[DIRTY_META]);
1953 ret = list_empty(&F2FS_I(inode)->gdirty_list);
1954 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1957 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
1958 file_keep_isize(inode) ||
1959 i_size_read(inode) & PAGE_MASK)
1961 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
1964 static inline int f2fs_readonly(struct super_block *sb)
1966 return sb->s_flags & MS_RDONLY;
1969 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
1971 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
1974 static inline bool is_dot_dotdot(const struct qstr *str)
1976 if (str->len == 1 && str->name[0] == '.')
1979 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
1985 static inline bool f2fs_may_extent_tree(struct inode *inode)
1987 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
1988 is_inode_flag_set(inode, FI_NO_EXTENT))
1991 return S_ISREG(inode->i_mode);
1994 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
1995 size_t size, gfp_t flags)
1997 #ifdef CONFIG_F2FS_FAULT_INJECTION
1998 if (time_to_inject(sbi, FAULT_KMALLOC)) {
1999 f2fs_show_injection_info(FAULT_KMALLOC);
2003 return kmalloc(size, flags);
2006 static inline void *f2fs_kvmalloc(size_t size, gfp_t flags)
2010 ret = kmalloc(size, flags | __GFP_NOWARN);
2012 ret = __vmalloc(size, flags, PAGE_KERNEL);
2016 static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
2020 ret = kzalloc(size, flags | __GFP_NOWARN);
2022 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
2026 #define get_inode_mode(i) \
2027 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2028 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2030 /* get offset of first page in next direct node */
2031 #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
2032 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
2033 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
2034 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
2039 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2040 void truncate_data_blocks(struct dnode_of_data *dn);
2041 int truncate_blocks(struct inode *inode, u64 from, bool lock);
2042 int f2fs_truncate(struct inode *inode);
2043 int f2fs_getattr(const struct path *path, struct kstat *stat,
2044 u32 request_mask, unsigned int flags);
2045 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2046 int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2047 int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2048 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2049 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2054 void f2fs_set_inode_flags(struct inode *inode);
2055 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2056 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2057 int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2058 int update_inode(struct inode *inode, struct page *node_page);
2059 int update_inode_page(struct inode *inode);
2060 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2061 void f2fs_evict_inode(struct inode *inode);
2062 void handle_failed_inode(struct inode *inode);
2067 struct dentry *f2fs_get_parent(struct dentry *child);
2072 void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2073 unsigned char get_de_type(struct f2fs_dir_entry *de);
2074 struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2075 f2fs_hash_t namehash, int *max_slots,
2076 struct f2fs_dentry_ptr *d);
2077 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2078 unsigned int start_pos, struct fscrypt_str *fstr);
2079 void do_make_empty_dir(struct inode *inode, struct inode *parent,
2080 struct f2fs_dentry_ptr *d);
2081 struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2082 const struct qstr *new_name,
2083 const struct qstr *orig_name, struct page *dpage);
2084 void update_parent_metadata(struct inode *dir, struct inode *inode,
2085 unsigned int current_depth);
2086 int room_for_filename(const void *bitmap, int slots, int max_slots);
2087 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2088 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2089 struct fscrypt_name *fname, struct page **res_page);
2090 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2091 const struct qstr *child, struct page **res_page);
2092 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2093 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2094 struct page **page);
2095 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2096 struct page *page, struct inode *inode);
2097 int update_dent_inode(struct inode *inode, struct inode *to,
2098 const struct qstr *name);
2099 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2100 const struct qstr *name, f2fs_hash_t name_hash,
2101 unsigned int bit_pos);
2102 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2103 const struct qstr *orig_name,
2104 struct inode *inode, nid_t ino, umode_t mode);
2105 int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2106 struct inode *inode, nid_t ino, umode_t mode);
2107 int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2108 struct inode *inode, nid_t ino, umode_t mode);
2109 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2110 struct inode *dir, struct inode *inode);
2111 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2112 bool f2fs_empty_dir(struct inode *dir);
2114 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2116 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2117 inode, inode->i_ino, inode->i_mode);
2123 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2124 void f2fs_inode_synced(struct inode *inode);
2125 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2126 int f2fs_sync_fs(struct super_block *sb, int sync);
2127 extern __printf(3, 4)
2128 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2129 int sanity_check_ckpt(struct f2fs_sb_info *sbi);
2134 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info);
2139 struct dnode_of_data;
2142 bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2143 int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2144 bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2145 bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2146 void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2147 pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2148 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2149 int truncate_inode_blocks(struct inode *inode, pgoff_t from);
2150 int truncate_xattr_node(struct inode *inode, struct page *page);
2151 int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2152 int remove_inode_page(struct inode *inode);
2153 struct page *new_inode_page(struct inode *inode);
2154 struct page *new_node_page(struct dnode_of_data *dn,
2155 unsigned int ofs, struct page *ipage);
2156 void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2157 struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2158 struct page *get_node_page_ra(struct page *parent, int start);
2159 void move_node_page(struct page *node_page, int gc_type);
2160 int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2161 struct writeback_control *wbc, bool atomic);
2162 int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc);
2163 void build_free_nids(struct f2fs_sb_info *sbi, bool sync, bool mount);
2164 bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2165 void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2166 void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2167 int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2168 void recover_inline_xattr(struct inode *inode, struct page *page);
2169 int recover_xattr_data(struct inode *inode, struct page *page,
2171 int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2172 int restore_node_summary(struct f2fs_sb_info *sbi,
2173 unsigned int segno, struct f2fs_summary_block *sum);
2174 void flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2175 int build_node_manager(struct f2fs_sb_info *sbi);
2176 void destroy_node_manager(struct f2fs_sb_info *sbi);
2177 int __init create_node_manager_caches(void);
2178 void destroy_node_manager_caches(void);
2183 void register_inmem_page(struct inode *inode, struct page *page);
2184 void drop_inmem_pages(struct inode *inode);
2185 int commit_inmem_pages(struct inode *inode);
2186 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2187 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2188 int f2fs_issue_flush(struct f2fs_sb_info *sbi);
2189 int create_flush_cmd_control(struct f2fs_sb_info *sbi);
2190 void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2191 void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2192 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2193 void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
2194 void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr);
2195 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2196 void release_discard_addrs(struct f2fs_sb_info *sbi);
2197 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2198 void allocate_new_segments(struct f2fs_sb_info *sbi);
2199 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2200 bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2201 struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2202 void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
2203 void write_meta_page(struct f2fs_sb_info *sbi, struct page *page);
2204 void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2205 void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
2206 void rewrite_data_page(struct f2fs_io_info *fio);
2207 void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2208 block_t old_blkaddr, block_t new_blkaddr,
2209 bool recover_curseg, bool recover_newaddr);
2210 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2211 block_t old_addr, block_t new_addr,
2212 unsigned char version, bool recover_curseg,
2213 bool recover_newaddr);
2214 void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2215 block_t old_blkaddr, block_t *new_blkaddr,
2216 struct f2fs_summary *sum, int type);
2217 void f2fs_wait_on_page_writeback(struct page *page,
2218 enum page_type type, bool ordered);
2219 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi,
2221 void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2222 void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2223 int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2224 unsigned int val, int alloc);
2225 void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2226 int build_segment_manager(struct f2fs_sb_info *sbi);
2227 void destroy_segment_manager(struct f2fs_sb_info *sbi);
2228 int __init create_segment_manager_caches(void);
2229 void destroy_segment_manager_caches(void);
2234 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2235 struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2236 struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2237 struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2238 bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2239 int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2240 int type, bool sync);
2241 void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2242 long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2244 void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2245 void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2246 void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2247 bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2248 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2249 int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2250 void release_orphan_inode(struct f2fs_sb_info *sbi);
2251 void add_orphan_inode(struct inode *inode);
2252 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2253 int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2254 int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2255 void update_dirty_page(struct inode *inode, struct page *page);
2256 void remove_dirty_inode(struct inode *inode);
2257 int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2258 int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2259 void init_ino_entry_info(struct f2fs_sb_info *sbi);
2260 int __init create_checkpoint_caches(void);
2261 void destroy_checkpoint_caches(void);
2266 void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, enum page_type type,
2268 void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *sbi,
2269 struct inode *inode, nid_t ino, pgoff_t idx,
2270 enum page_type type, int rw);
2271 void f2fs_flush_merged_bios(struct f2fs_sb_info *sbi);
2272 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2273 int f2fs_submit_page_mbio(struct f2fs_io_info *fio);
2274 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2275 block_t blk_addr, struct bio *bio);
2276 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2277 void set_data_blkaddr(struct dnode_of_data *dn);
2278 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2279 int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2280 int reserve_new_block(struct dnode_of_data *dn);
2281 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2282 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2283 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2284 struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2285 int op_flags, bool for_write);
2286 struct page *find_data_page(struct inode *inode, pgoff_t index);
2287 struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2289 struct page *get_new_data_page(struct inode *inode,
2290 struct page *ipage, pgoff_t index, bool new_i_size);
2291 int do_write_data_page(struct f2fs_io_info *fio);
2292 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2293 int create, int flag);
2294 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2295 u64 start, u64 len);
2296 void f2fs_set_page_dirty_nobuffers(struct page *page);
2297 void f2fs_invalidate_page(struct page *page, unsigned int offset,
2298 unsigned int length);
2299 int f2fs_release_page(struct page *page, gfp_t wait);
2300 #ifdef CONFIG_MIGRATION
2301 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2302 struct page *page, enum migrate_mode mode);
2308 int start_gc_thread(struct f2fs_sb_info *sbi);
2309 void stop_gc_thread(struct f2fs_sb_info *sbi);
2310 block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
2311 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background);
2312 void build_gc_manager(struct f2fs_sb_info *sbi);
2317 int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2318 bool space_for_roll_forward(struct f2fs_sb_info *sbi);
2323 #ifdef CONFIG_F2FS_STAT_FS
2324 struct f2fs_stat_info {
2325 struct list_head stat_list;
2326 struct f2fs_sb_info *sbi;
2327 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2328 int main_area_segs, main_area_sections, main_area_zones;
2329 unsigned long long hit_largest, hit_cached, hit_rbtree;
2330 unsigned long long hit_total, total_ext;
2331 int ext_tree, zombie_tree, ext_node;
2332 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2334 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
2335 int nats, dirty_nats, sits, dirty_sits, free_nids, alloc_nids;
2336 int total_count, utilization;
2337 int bg_gc, nr_wb_cp_data, nr_wb_data, nr_flush, nr_discard;
2338 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
2339 int aw_cnt, max_aw_cnt;
2340 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
2341 unsigned int bimodal, avg_vblocks;
2342 int util_free, util_valid, util_invalid;
2343 int rsvd_segs, overp_segs;
2344 int dirty_count, node_pages, meta_pages;
2345 int prefree_count, call_count, cp_count, bg_cp_count;
2346 int tot_segs, node_segs, data_segs, free_segs, free_secs;
2347 int bg_node_segs, bg_data_segs;
2348 int tot_blks, data_blks, node_blks;
2349 int bg_data_blks, bg_node_blks;
2350 int curseg[NR_CURSEG_TYPE];
2351 int cursec[NR_CURSEG_TYPE];
2352 int curzone[NR_CURSEG_TYPE];
2354 unsigned int segment_count[2];
2355 unsigned int block_count[2];
2356 unsigned int inplace_count;
2357 unsigned long long base_mem, cache_mem, page_mem;
2360 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2362 return (struct f2fs_stat_info *)sbi->stat_info;
2365 #define stat_inc_cp_count(si) ((si)->cp_count++)
2366 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2367 #define stat_inc_call_count(si) ((si)->call_count++)
2368 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2369 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2370 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2371 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2372 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2373 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2374 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2375 #define stat_inc_inline_xattr(inode) \
2377 if (f2fs_has_inline_xattr(inode)) \
2378 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2380 #define stat_dec_inline_xattr(inode) \
2382 if (f2fs_has_inline_xattr(inode)) \
2383 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2385 #define stat_inc_inline_inode(inode) \
2387 if (f2fs_has_inline_data(inode)) \
2388 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2390 #define stat_dec_inline_inode(inode) \
2392 if (f2fs_has_inline_data(inode)) \
2393 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2395 #define stat_inc_inline_dir(inode) \
2397 if (f2fs_has_inline_dentry(inode)) \
2398 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2400 #define stat_dec_inline_dir(inode) \
2402 if (f2fs_has_inline_dentry(inode)) \
2403 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2405 #define stat_inc_seg_type(sbi, curseg) \
2406 ((sbi)->segment_count[(curseg)->alloc_type]++)
2407 #define stat_inc_block_count(sbi, curseg) \
2408 ((sbi)->block_count[(curseg)->alloc_type]++)
2409 #define stat_inc_inplace_blocks(sbi) \
2410 (atomic_inc(&(sbi)->inplace_count))
2411 #define stat_inc_atomic_write(inode) \
2412 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2413 #define stat_dec_atomic_write(inode) \
2414 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2415 #define stat_update_max_atomic_write(inode) \
2417 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2418 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2420 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2422 #define stat_inc_seg_count(sbi, type, gc_type) \
2424 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2426 if (type == SUM_TYPE_DATA) { \
2428 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2431 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2435 #define stat_inc_tot_blk_count(si, blks) \
2436 (si->tot_blks += (blks))
2438 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2440 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2441 stat_inc_tot_blk_count(si, blks); \
2442 si->data_blks += (blks); \
2443 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
2446 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2448 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2449 stat_inc_tot_blk_count(si, blks); \
2450 si->node_blks += (blks); \
2451 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
2454 int f2fs_build_stats(struct f2fs_sb_info *sbi);
2455 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
2456 int __init f2fs_create_root_stats(void);
2457 void f2fs_destroy_root_stats(void);
2459 #define stat_inc_cp_count(si)
2460 #define stat_inc_bg_cp_count(si)
2461 #define stat_inc_call_count(si)
2462 #define stat_inc_bggc_count(si)
2463 #define stat_inc_dirty_inode(sbi, type)
2464 #define stat_dec_dirty_inode(sbi, type)
2465 #define stat_inc_total_hit(sb)
2466 #define stat_inc_rbtree_node_hit(sb)
2467 #define stat_inc_largest_node_hit(sbi)
2468 #define stat_inc_cached_node_hit(sbi)
2469 #define stat_inc_inline_xattr(inode)
2470 #define stat_dec_inline_xattr(inode)
2471 #define stat_inc_inline_inode(inode)
2472 #define stat_dec_inline_inode(inode)
2473 #define stat_inc_inline_dir(inode)
2474 #define stat_dec_inline_dir(inode)
2475 #define stat_inc_atomic_write(inode)
2476 #define stat_dec_atomic_write(inode)
2477 #define stat_update_max_atomic_write(inode)
2478 #define stat_inc_seg_type(sbi, curseg)
2479 #define stat_inc_block_count(sbi, curseg)
2480 #define stat_inc_inplace_blocks(sbi)
2481 #define stat_inc_seg_count(sbi, type, gc_type)
2482 #define stat_inc_tot_blk_count(si, blks)
2483 #define stat_inc_data_blk_count(sbi, blks, gc_type)
2484 #define stat_inc_node_blk_count(sbi, blks, gc_type)
2486 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2487 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
2488 static inline int __init f2fs_create_root_stats(void) { return 0; }
2489 static inline void f2fs_destroy_root_stats(void) { }
2492 extern const struct file_operations f2fs_dir_operations;
2493 extern const struct file_operations f2fs_file_operations;
2494 extern const struct inode_operations f2fs_file_inode_operations;
2495 extern const struct address_space_operations f2fs_dblock_aops;
2496 extern const struct address_space_operations f2fs_node_aops;
2497 extern const struct address_space_operations f2fs_meta_aops;
2498 extern const struct inode_operations f2fs_dir_inode_operations;
2499 extern const struct inode_operations f2fs_symlink_inode_operations;
2500 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
2501 extern const struct inode_operations f2fs_special_inode_operations;
2502 extern struct kmem_cache *inode_entry_slab;
2507 bool f2fs_may_inline_data(struct inode *inode);
2508 bool f2fs_may_inline_dentry(struct inode *inode);
2509 void read_inline_data(struct page *page, struct page *ipage);
2510 bool truncate_inline_inode(struct page *ipage, u64 from);
2511 int f2fs_read_inline_data(struct inode *inode, struct page *page);
2512 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
2513 int f2fs_convert_inline_inode(struct inode *inode);
2514 int f2fs_write_inline_data(struct inode *inode, struct page *page);
2515 bool recover_inline_data(struct inode *inode, struct page *npage);
2516 struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
2517 struct fscrypt_name *fname, struct page **res_page);
2518 int make_empty_inline_dir(struct inode *inode, struct inode *parent,
2519 struct page *ipage);
2520 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
2521 const struct qstr *orig_name,
2522 struct inode *inode, nid_t ino, umode_t mode);
2523 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
2524 struct inode *dir, struct inode *inode);
2525 bool f2fs_empty_inline_dir(struct inode *dir);
2526 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
2527 struct fscrypt_str *fstr);
2528 int f2fs_inline_data_fiemap(struct inode *inode,
2529 struct fiemap_extent_info *fieinfo,
2530 __u64 start, __u64 len);
2535 unsigned long f2fs_shrink_count(struct shrinker *shrink,
2536 struct shrink_control *sc);
2537 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
2538 struct shrink_control *sc);
2539 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
2540 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
2545 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
2546 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
2547 void f2fs_drop_extent_tree(struct inode *inode);
2548 unsigned int f2fs_destroy_extent_node(struct inode *inode);
2549 void f2fs_destroy_extent_tree(struct inode *inode);
2550 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
2551 struct extent_info *ei);
2552 void f2fs_update_extent_cache(struct dnode_of_data *dn);
2553 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2554 pgoff_t fofs, block_t blkaddr, unsigned int len);
2555 void init_extent_cache_info(struct f2fs_sb_info *sbi);
2556 int __init create_extent_cache(void);
2557 void destroy_extent_cache(void);
2562 static inline bool f2fs_encrypted_inode(struct inode *inode)
2564 return file_is_encrypt(inode);
2567 static inline void f2fs_set_encrypted_inode(struct inode *inode)
2569 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2570 file_set_encrypt(inode);
2574 static inline bool f2fs_bio_encrypted(struct bio *bio)
2576 return bio->bi_private != NULL;
2579 static inline int f2fs_sb_has_crypto(struct super_block *sb)
2581 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
2584 static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
2586 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
2589 #ifdef CONFIG_BLK_DEV_ZONED
2590 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
2591 struct block_device *bdev, block_t blkaddr)
2593 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
2596 for (i = 0; i < sbi->s_ndevs; i++)
2597 if (FDEV(i).bdev == bdev)
2598 return FDEV(i).blkz_type[zno];
2603 static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
2605 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
2607 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
2610 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2612 clear_opt(sbi, ADAPTIVE);
2613 clear_opt(sbi, LFS);
2616 case F2FS_MOUNT_ADAPTIVE:
2617 set_opt(sbi, ADAPTIVE);
2619 case F2FS_MOUNT_LFS:
2625 static inline bool f2fs_may_encrypt(struct inode *inode)
2627 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2628 umode_t mode = inode->i_mode;
2630 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));