4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 #include <linux/types.h>
15 #include <linux/page-flags.h>
16 #include <linux/buffer_head.h>
17 #include <linux/slab.h>
18 #include <linux/crc32.h>
19 #include <linux/magic.h>
20 #include <linux/kobject.h>
21 #include <linux/sched.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #include <linux/fscrypto.h>
26 #include <crypto/hash.h>
28 #ifdef CONFIG_F2FS_CHECK_FS
29 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
31 #define f2fs_bug_on(sbi, condition) \
33 if (unlikely(condition)) { \
35 set_sbi_flag(sbi, SBI_NEED_FSCK); \
40 #ifdef CONFIG_F2FS_FAULT_INJECTION
54 struct f2fs_fault_info {
56 unsigned int inject_rate;
57 unsigned int inject_type;
60 extern char *fault_name[FAULT_MAX];
61 #define IS_FAULT_SET(fi, type) (fi->inject_type & (1 << (type)))
67 #define F2FS_MOUNT_BG_GC 0x00000001
68 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
69 #define F2FS_MOUNT_DISCARD 0x00000004
70 #define F2FS_MOUNT_NOHEAP 0x00000008
71 #define F2FS_MOUNT_XATTR_USER 0x00000010
72 #define F2FS_MOUNT_POSIX_ACL 0x00000020
73 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
74 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
75 #define F2FS_MOUNT_INLINE_DATA 0x00000100
76 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
77 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
78 #define F2FS_MOUNT_NOBARRIER 0x00000800
79 #define F2FS_MOUNT_FASTBOOT 0x00001000
80 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
81 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
82 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
83 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
84 #define F2FS_MOUNT_ADAPTIVE 0x00020000
85 #define F2FS_MOUNT_LFS 0x00040000
87 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
88 #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
89 #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
91 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
92 typecheck(unsigned long long, b) && \
93 ((long long)((a) - (b)) > 0))
95 typedef u32 block_t; /*
96 * should not change u32, since it is the on-disk block
97 * address format, __le32.
101 struct f2fs_mount_info {
105 #define F2FS_FEATURE_ENCRYPT 0x0001
106 #define F2FS_FEATURE_BLKZONED 0x0002
108 #define F2FS_HAS_FEATURE(sb, mask) \
109 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
110 #define F2FS_SET_FEATURE(sb, mask) \
111 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
112 #define F2FS_CLEAR_FEATURE(sb, mask) \
113 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
116 * For checkpoint manager
131 #define DEF_BATCHED_TRIM_SECTIONS 2048
132 #define BATCHED_TRIM_SEGMENTS(sbi) \
133 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
134 #define BATCHED_TRIM_BLOCKS(sbi) \
135 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
136 #define MAX_DISCARD_BLOCKS(sbi) \
137 ((1 << (sbi)->log_blocks_per_seg) * (sbi)->segs_per_sec)
138 #define DISCARD_ISSUE_RATE 8
139 #define DEF_CP_INTERVAL 60 /* 60 secs */
140 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
151 * For CP/NAT/SIT/SSA readahead
161 /* for the list of ino */
163 ORPHAN_INO, /* for orphan ino list */
164 APPEND_INO, /* for append ino list */
165 UPDATE_INO, /* for update ino list */
166 MAX_INO_ENTRY, /* max. list */
170 struct list_head list; /* list head */
171 nid_t ino; /* inode number */
174 /* for the list of inodes to be GCed */
176 struct list_head list; /* list head */
177 struct inode *inode; /* vfs inode pointer */
180 /* for the list of blockaddresses to be discarded */
181 struct discard_entry {
182 struct list_head list; /* list head */
183 block_t blkaddr; /* block address to be discarded */
184 int len; /* # of consecutive blocks of the discard */
194 struct list_head list; /* command list */
195 struct completion wait; /* compleation */
196 block_t lstart; /* logical start address */
197 block_t len; /* length */
198 struct bio *bio; /* bio */
199 int state; /* state */
202 struct discard_cmd_control {
203 struct task_struct *f2fs_issue_discard; /* discard thread */
204 struct list_head discard_entry_list; /* 4KB discard entry list */
205 int nr_discards; /* # of discards in the list */
206 struct list_head discard_cmd_list; /* discard cmd list */
207 wait_queue_head_t discard_wait_queue; /* waiting queue for wake-up */
208 struct mutex cmd_lock;
209 int max_discards; /* max. discards to be issued */
210 atomic_t submit_discard; /* # of issued discard */
213 /* for the list of fsync inodes, used only during recovery */
214 struct fsync_inode_entry {
215 struct list_head list; /* list head */
216 struct inode *inode; /* vfs inode pointer */
217 block_t blkaddr; /* block address locating the last fsync */
218 block_t last_dentry; /* block address locating the last dentry */
221 #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
222 #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
224 #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
225 #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
226 #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
227 #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
229 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
230 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
232 static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
234 int before = nats_in_cursum(journal);
236 journal->n_nats = cpu_to_le16(before + i);
240 static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
242 int before = sits_in_cursum(journal);
244 journal->n_sits = cpu_to_le16(before + i);
248 static inline bool __has_cursum_space(struct f2fs_journal *journal,
251 if (type == NAT_JOURNAL)
252 return size <= MAX_NAT_JENTRIES(journal);
253 return size <= MAX_SIT_JENTRIES(journal);
259 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
260 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
261 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
263 #define F2FS_IOCTL_MAGIC 0xf5
264 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
265 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
266 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
267 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
268 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
269 #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
270 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
271 #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
272 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
273 struct f2fs_move_range)
275 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
276 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
277 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
280 * should be same as XFS_IOC_GOINGDOWN.
281 * Flags for going down operation used by FS_IOC_GOINGDOWN
283 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
284 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
285 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
286 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
287 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
289 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
291 * ioctl commands in 32 bit emulation
293 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
294 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
295 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
298 struct f2fs_defragment {
303 struct f2fs_move_range {
304 u32 dst_fd; /* destination fd */
305 u64 pos_in; /* start position in src_fd */
306 u64 pos_out; /* start position in dst_fd */
307 u64 len; /* size to move */
311 * For INODE and NODE manager
313 /* for directory operations */
314 struct f2fs_dentry_ptr {
317 struct f2fs_dir_entry *dentry;
318 __u8 (*filename)[F2FS_SLOT_LEN];
322 static inline void make_dentry_ptr(struct inode *inode,
323 struct f2fs_dentry_ptr *d, void *src, int type)
328 struct f2fs_dentry_block *t = (struct f2fs_dentry_block *)src;
330 d->max = NR_DENTRY_IN_BLOCK;
331 d->bitmap = &t->dentry_bitmap;
332 d->dentry = t->dentry;
333 d->filename = t->filename;
335 struct f2fs_inline_dentry *t = (struct f2fs_inline_dentry *)src;
337 d->max = NR_INLINE_DENTRY;
338 d->bitmap = &t->dentry_bitmap;
339 d->dentry = t->dentry;
340 d->filename = t->filename;
345 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
346 * as its node offset to distinguish from index node blocks.
347 * But some bits are used to mark the node block.
349 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
352 ALLOC_NODE, /* allocate a new node page if needed */
353 LOOKUP_NODE, /* look up a node without readahead */
355 * look up a node with readahead called
360 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
362 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
364 /* vector size for gang look-up from extent cache that consists of radix tree */
365 #define EXT_TREE_VEC_SIZE 64
367 /* for in-memory extent cache entry */
368 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
370 /* number of extent info in extent cache we try to shrink */
371 #define EXTENT_CACHE_SHRINK_NUMBER 128
374 unsigned int fofs; /* start offset in a file */
375 u32 blk; /* start block address of the extent */
376 unsigned int len; /* length of the extent */
380 struct rb_node rb_node; /* rb node located in rb-tree */
381 struct list_head list; /* node in global extent list of sbi */
382 struct extent_info ei; /* extent info */
383 struct extent_tree *et; /* extent tree pointer */
387 nid_t ino; /* inode number */
388 struct rb_root root; /* root of extent info rb-tree */
389 struct extent_node *cached_en; /* recently accessed extent node */
390 struct extent_info largest; /* largested extent info */
391 struct list_head list; /* to be used by sbi->zombie_list */
392 rwlock_t lock; /* protect extent info rb-tree */
393 atomic_t node_cnt; /* # of extent node in rb-tree*/
397 * This structure is taken from ext4_map_blocks.
399 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
401 #define F2FS_MAP_NEW (1 << BH_New)
402 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
403 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
404 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
407 struct f2fs_map_blocks {
411 unsigned int m_flags;
412 pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
415 /* for flag in get_data_block */
416 #define F2FS_GET_BLOCK_READ 0
417 #define F2FS_GET_BLOCK_DIO 1
418 #define F2FS_GET_BLOCK_FIEMAP 2
419 #define F2FS_GET_BLOCK_BMAP 3
420 #define F2FS_GET_BLOCK_PRE_DIO 4
421 #define F2FS_GET_BLOCK_PRE_AIO 5
424 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
426 #define FADVISE_COLD_BIT 0x01
427 #define FADVISE_LOST_PINO_BIT 0x02
428 #define FADVISE_ENCRYPT_BIT 0x04
429 #define FADVISE_ENC_NAME_BIT 0x08
430 #define FADVISE_KEEP_SIZE_BIT 0x10
432 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
433 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
434 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
435 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
436 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
437 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
438 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
439 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
440 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
441 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
442 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
443 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
444 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
446 #define DEF_DIR_LEVEL 0
448 struct f2fs_inode_info {
449 struct inode vfs_inode; /* serve a vfs inode */
450 unsigned long i_flags; /* keep an inode flags for ioctl */
451 unsigned char i_advise; /* use to give file attribute hints */
452 unsigned char i_dir_level; /* use for dentry level for large dir */
453 unsigned int i_current_depth; /* use only in directory structure */
454 unsigned int i_pino; /* parent inode number */
455 umode_t i_acl_mode; /* keep file acl mode temporarily */
457 /* Use below internally in f2fs*/
458 unsigned long flags; /* use to pass per-file flags */
459 struct rw_semaphore i_sem; /* protect fi info */
460 atomic_t dirty_pages; /* # of dirty pages */
461 f2fs_hash_t chash; /* hash value of given file name */
462 unsigned int clevel; /* maximum level of given file name */
463 struct task_struct *task; /* lookup and create consistency */
464 nid_t i_xattr_nid; /* node id that contains xattrs */
465 loff_t last_disk_size; /* lastly written file size */
467 struct list_head dirty_list; /* dirty list for dirs and files */
468 struct list_head gdirty_list; /* linked in global dirty list */
469 struct list_head inmem_pages; /* inmemory pages managed by f2fs */
470 struct mutex inmem_lock; /* lock for inmemory pages */
471 struct extent_tree *extent_tree; /* cached extent_tree entry */
472 struct rw_semaphore dio_rwsem[2];/* avoid racing between dio and gc */
475 static inline void get_extent_info(struct extent_info *ext,
476 struct f2fs_extent *i_ext)
478 ext->fofs = le32_to_cpu(i_ext->fofs);
479 ext->blk = le32_to_cpu(i_ext->blk);
480 ext->len = le32_to_cpu(i_ext->len);
483 static inline void set_raw_extent(struct extent_info *ext,
484 struct f2fs_extent *i_ext)
486 i_ext->fofs = cpu_to_le32(ext->fofs);
487 i_ext->blk = cpu_to_le32(ext->blk);
488 i_ext->len = cpu_to_le32(ext->len);
491 static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
492 u32 blk, unsigned int len)
499 static inline bool __is_extent_same(struct extent_info *ei1,
500 struct extent_info *ei2)
502 return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk &&
503 ei1->len == ei2->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 */
558 /* free node ids management */
559 struct radix_tree_root free_nid_root;/* root of the free_nid cache */
560 struct list_head nid_list[MAX_NID_LIST];/* lists for free nids */
561 unsigned int nid_cnt[MAX_NID_LIST]; /* the number of free node id */
562 spinlock_t nid_list_lock; /* protect nid lists ops */
563 struct mutex build_lock; /* lock for build free nids */
566 char *nat_bitmap; /* NAT bitmap pointer */
567 #ifdef CONFIG_F2FS_CHECK_FS
568 char *nat_bitmap_mir; /* NAT bitmap mirror */
570 int bitmap_size; /* bitmap size */
574 * this structure is used as one of function parameters.
575 * all the information are dedicated to a given direct node block determined
576 * by the data offset in a file.
578 struct dnode_of_data {
579 struct inode *inode; /* vfs inode pointer */
580 struct page *inode_page; /* its inode page, NULL is possible */
581 struct page *node_page; /* cached direct node page */
582 nid_t nid; /* node id of the direct node block */
583 unsigned int ofs_in_node; /* data offset in the node page */
584 bool inode_page_locked; /* inode page is locked or not */
585 bool node_changed; /* is node block changed */
586 char cur_level; /* level of hole node page */
587 char max_level; /* level of current page located */
588 block_t data_blkaddr; /* block address of the node block */
591 static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
592 struct page *ipage, struct page *npage, nid_t nid)
594 memset(dn, 0, sizeof(*dn));
596 dn->inode_page = ipage;
597 dn->node_page = npage;
604 * By default, there are 6 active log areas across the whole main area.
605 * When considering hot and cold data separation to reduce cleaning overhead,
606 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
608 * In the current design, you should not change the numbers intentionally.
609 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
610 * logs individually according to the underlying devices. (default: 6)
611 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
612 * data and 8 for node logs.
614 #define NR_CURSEG_DATA_TYPE (3)
615 #define NR_CURSEG_NODE_TYPE (3)
616 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
619 CURSEG_HOT_DATA = 0, /* directory entry blocks */
620 CURSEG_WARM_DATA, /* data blocks */
621 CURSEG_COLD_DATA, /* multimedia or GCed data blocks */
622 CURSEG_HOT_NODE, /* direct node blocks of directory files */
623 CURSEG_WARM_NODE, /* direct node blocks of normal files */
624 CURSEG_COLD_NODE, /* indirect node blocks */
629 struct completion wait;
630 struct llist_node llnode;
634 struct flush_cmd_control {
635 struct task_struct *f2fs_issue_flush; /* flush thread */
636 wait_queue_head_t flush_wait_queue; /* waiting queue for wake-up */
637 atomic_t submit_flush; /* # of issued flushes */
638 struct llist_head issue_list; /* list for command issue */
639 struct llist_node *dispatch_list; /* list for command dispatch */
642 struct f2fs_sm_info {
643 struct sit_info *sit_info; /* whole segment information */
644 struct free_segmap_info *free_info; /* free segment information */
645 struct dirty_seglist_info *dirty_info; /* dirty segment information */
646 struct curseg_info *curseg_array; /* active segment information */
648 block_t seg0_blkaddr; /* block address of 0'th segment */
649 block_t main_blkaddr; /* start block address of main area */
650 block_t ssa_blkaddr; /* start block address of SSA area */
652 unsigned int segment_count; /* total # of segments */
653 unsigned int main_segments; /* # of segments in main area */
654 unsigned int reserved_segments; /* # of reserved segments */
655 unsigned int ovp_segments; /* # of overprovision segments */
657 /* a threshold to reclaim prefree segments */
658 unsigned int rec_prefree_segments;
660 /* for batched trimming */
661 unsigned int trim_sections; /* # of sections to trim */
663 struct list_head sit_entry_set; /* sit entry set list */
665 unsigned int ipu_policy; /* in-place-update policy */
666 unsigned int min_ipu_util; /* in-place-update threshold */
667 unsigned int min_fsync_blocks; /* threshold for fsync */
669 /* for flush command control */
670 struct flush_cmd_control *fcc_info;
672 /* for discard command control */
673 struct discard_cmd_control *dcc_info;
680 * COUNT_TYPE for monitoring
682 * f2fs monitors the number of several block types such as on-writeback,
683 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
685 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
699 * The below are the page types of bios used in submit_bio().
700 * The available types are:
701 * DATA User data pages. It operates as async mode.
702 * NODE Node pages. It operates as async mode.
703 * META FS metadata pages such as SIT, NAT, CP.
704 * NR_PAGE_TYPE The number of page types.
705 * META_FLUSH Make sure the previous pages are written
706 * with waiting the bio's completion
707 * ... Only can be used with META.
709 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
716 INMEM, /* the below types are used by tracepoints only. */
723 struct f2fs_io_info {
724 struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
725 enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
726 int op; /* contains REQ_OP_ */
727 int op_flags; /* req_flag_bits */
728 block_t new_blkaddr; /* new block address to be written */
729 block_t old_blkaddr; /* old block address before Cow */
730 struct page *page; /* page to be written */
731 struct page *encrypted_page; /* encrypted page */
732 bool submitted; /* indicate IO submission */
735 #define is_read_io(rw) (rw == READ)
736 struct f2fs_bio_info {
737 struct f2fs_sb_info *sbi; /* f2fs superblock */
738 struct bio *bio; /* bios to merge */
739 sector_t last_block_in_bio; /* last block number */
740 struct f2fs_io_info fio; /* store buffered io info. */
741 struct rw_semaphore io_rwsem; /* blocking op for bio */
744 #define FDEV(i) (sbi->devs[i])
745 #define RDEV(i) (raw_super->devs[i])
746 struct f2fs_dev_info {
747 struct block_device *bdev;
748 char path[MAX_PATH_LEN];
749 unsigned int total_segments;
752 #ifdef CONFIG_BLK_DEV_ZONED
753 unsigned int nr_blkz; /* Total number of zones */
754 u8 *blkz_type; /* Array of zones type */
759 DIR_INODE, /* for dirty dir inode */
760 FILE_INODE, /* for dirty regular/symlink inode */
761 DIRTY_META, /* for all dirtied inode metadata */
765 /* for inner inode cache management */
766 struct inode_management {
767 struct radix_tree_root ino_root; /* ino entry array */
768 spinlock_t ino_lock; /* for ino entry lock */
769 struct list_head ino_list; /* inode list head */
770 unsigned long ino_num; /* number of entries */
773 /* For s_flag in struct f2fs_sb_info */
775 SBI_IS_DIRTY, /* dirty flag for checkpoint */
776 SBI_IS_CLOSE, /* specify unmounting */
777 SBI_NEED_FSCK, /* need fsck.f2fs to fix */
778 SBI_POR_DOING, /* recovery is doing or not */
779 SBI_NEED_SB_WRITE, /* need to recover superblock */
780 SBI_NEED_CP, /* need to checkpoint */
789 #ifdef CONFIG_F2FS_FS_ENCRYPTION
790 #define F2FS_KEY_DESC_PREFIX "f2fs:"
791 #define F2FS_KEY_DESC_PREFIX_SIZE 5
793 struct f2fs_sb_info {
794 struct super_block *sb; /* pointer to VFS super block */
795 struct proc_dir_entry *s_proc; /* proc entry */
796 struct f2fs_super_block *raw_super; /* raw super block pointer */
797 int valid_super_block; /* valid super block no */
798 unsigned long s_flag; /* flags for sbi */
800 #ifdef CONFIG_F2FS_FS_ENCRYPTION
801 u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE];
805 #ifdef CONFIG_BLK_DEV_ZONED
806 unsigned int blocks_per_blkz; /* F2FS blocks per zone */
807 unsigned int log_blocks_per_blkz; /* log2 F2FS blocks per zone */
810 /* for node-related operations */
811 struct f2fs_nm_info *nm_info; /* node manager */
812 struct inode *node_inode; /* cache node blocks */
814 /* for segment-related operations */
815 struct f2fs_sm_info *sm_info; /* segment manager */
817 /* for bio operations */
818 struct f2fs_bio_info read_io; /* for read bios */
819 struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
820 struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */
821 int write_io_size_bits; /* Write IO size bits */
822 mempool_t *write_io_dummy; /* Dummy pages */
825 struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */
826 int cur_cp_pack; /* remain current cp pack */
827 spinlock_t cp_lock; /* for flag in ckpt */
828 struct inode *meta_inode; /* cache meta blocks */
829 struct mutex cp_mutex; /* checkpoint procedure lock */
830 struct rw_semaphore cp_rwsem; /* blocking FS operations */
831 struct rw_semaphore node_write; /* locking node writes */
832 wait_queue_head_t cp_wait;
833 unsigned long last_time[MAX_TIME]; /* to store time in jiffies */
834 long interval_time[MAX_TIME]; /* to store thresholds */
836 struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */
838 /* for orphan inode, use 0'th array */
839 unsigned int max_orphans; /* max orphan inodes */
841 /* for inode management */
842 struct list_head inode_list[NR_INODE_TYPE]; /* dirty inode list */
843 spinlock_t inode_lock[NR_INODE_TYPE]; /* for dirty inode list lock */
845 /* for extent tree cache */
846 struct radix_tree_root extent_tree_root;/* cache extent cache entries */
847 struct mutex extent_tree_lock; /* locking extent radix tree */
848 struct list_head extent_list; /* lru list for shrinker */
849 spinlock_t extent_lock; /* locking extent lru list */
850 atomic_t total_ext_tree; /* extent tree count */
851 struct list_head zombie_list; /* extent zombie tree list */
852 atomic_t total_zombie_tree; /* extent zombie tree count */
853 atomic_t total_ext_node; /* extent info count */
855 /* basic filesystem units */
856 unsigned int log_sectors_per_block; /* log2 sectors per block */
857 unsigned int log_blocksize; /* log2 block size */
858 unsigned int blocksize; /* block size */
859 unsigned int root_ino_num; /* root inode number*/
860 unsigned int node_ino_num; /* node inode number*/
861 unsigned int meta_ino_num; /* meta inode number*/
862 unsigned int log_blocks_per_seg; /* log2 blocks per segment */
863 unsigned int blocks_per_seg; /* blocks per segment */
864 unsigned int segs_per_sec; /* segments per section */
865 unsigned int secs_per_zone; /* sections per zone */
866 unsigned int total_sections; /* total section count */
867 unsigned int total_node_count; /* total node block count */
868 unsigned int total_valid_node_count; /* valid node block count */
869 loff_t max_file_blocks; /* max block index of file */
870 int active_logs; /* # of active logs */
871 int dir_level; /* directory level */
873 block_t user_block_count; /* # of user blocks */
874 block_t total_valid_block_count; /* # of valid blocks */
875 block_t discard_blks; /* discard command candidats */
876 block_t last_valid_block_count; /* for recovery */
877 u32 s_next_generation; /* for NFS support */
879 /* # of pages, see count_type */
880 atomic_t nr_pages[NR_COUNT_TYPE];
881 /* # of allocated blocks */
882 struct percpu_counter alloc_valid_block_count;
884 /* valid inode count */
885 struct percpu_counter total_valid_inode_count;
887 struct f2fs_mount_info mount_opt; /* mount options */
889 /* for cleaning operations */
890 struct mutex gc_mutex; /* mutex for GC */
891 struct f2fs_gc_kthread *gc_thread; /* GC thread */
892 unsigned int cur_victim_sec; /* current victim section num */
894 /* threshold for converting bg victims for fg */
897 /* maximum # of trials to find a victim segment for SSR and GC */
898 unsigned int max_victim_search;
901 * for stat information.
902 * one is for the LFS mode, and the other is for the SSR mode.
904 #ifdef CONFIG_F2FS_STAT_FS
905 struct f2fs_stat_info *stat_info; /* FS status information */
906 unsigned int segment_count[2]; /* # of allocated segments */
907 unsigned int block_count[2]; /* # of allocated blocks */
908 atomic_t inplace_count; /* # of inplace update */
909 atomic64_t total_hit_ext; /* # of lookup extent cache */
910 atomic64_t read_hit_rbtree; /* # of hit rbtree extent node */
911 atomic64_t read_hit_largest; /* # of hit largest extent node */
912 atomic64_t read_hit_cached; /* # of hit cached extent node */
913 atomic_t inline_xattr; /* # of inline_xattr inodes */
914 atomic_t inline_inode; /* # of inline_data inodes */
915 atomic_t inline_dir; /* # of inline_dentry inodes */
916 atomic_t aw_cnt; /* # of atomic writes */
917 atomic_t max_aw_cnt; /* max # of atomic writes */
918 int bg_gc; /* background gc calls */
919 unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
921 unsigned int last_victim[2]; /* last victim segment # */
922 spinlock_t stat_lock; /* lock for stat operations */
924 /* For sysfs suppport */
925 struct kobject s_kobj;
926 struct completion s_kobj_unregister;
928 /* For shrinker support */
929 struct list_head s_list;
930 int s_ndevs; /* number of devices */
931 struct f2fs_dev_info *devs; /* for device list */
932 struct mutex umount_mutex;
933 unsigned int shrinker_run_no;
935 /* For write statistics */
936 u64 sectors_written_start;
939 /* Reference to checksum algorithm driver via cryptoapi */
940 struct crypto_shash *s_chksum_driver;
942 /* For fault injection */
943 #ifdef CONFIG_F2FS_FAULT_INJECTION
944 struct f2fs_fault_info fault_info;
948 #ifdef CONFIG_F2FS_FAULT_INJECTION
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);
962 printk("%sF2FS-fs : inject %s in %pF\n",
965 __builtin_return_address(0));
972 /* For write statistics. Suppose sector size is 512 bytes,
973 * and the return value is in kbytes. s is of struct f2fs_sb_info.
975 #define BD_PART_WRITTEN(s) \
976 (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
977 s->sectors_written_start) >> 1)
979 static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
981 sbi->last_time[type] = jiffies;
984 static inline bool f2fs_time_over(struct f2fs_sb_info *sbi, int type)
986 struct timespec ts = {sbi->interval_time[type], 0};
987 unsigned long interval = timespec_to_jiffies(&ts);
989 return time_after(jiffies, sbi->last_time[type] + interval);
992 static inline bool is_idle(struct f2fs_sb_info *sbi)
994 struct block_device *bdev = sbi->sb->s_bdev;
995 struct request_queue *q = bdev_get_queue(bdev);
996 struct request_list *rl = &q->root_rl;
998 if (rl->count[BLK_RW_SYNC] || rl->count[BLK_RW_ASYNC])
1001 return f2fs_time_over(sbi, REQ_TIME);
1007 static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
1008 unsigned int length)
1010 SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
1011 u32 *ctx = (u32 *)shash_desc_ctx(shash);
1014 shash->tfm = sbi->s_chksum_driver;
1016 *ctx = F2FS_SUPER_MAGIC;
1018 err = crypto_shash_update(shash, address, length);
1024 static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
1025 void *buf, size_t buf_size)
1027 return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
1030 static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
1032 return container_of(inode, struct f2fs_inode_info, vfs_inode);
1035 static inline struct f2fs_sb_info *F2FS_SB(struct super_block *sb)
1037 return sb->s_fs_info;
1040 static inline struct f2fs_sb_info *F2FS_I_SB(struct inode *inode)
1042 return F2FS_SB(inode->i_sb);
1045 static inline struct f2fs_sb_info *F2FS_M_SB(struct address_space *mapping)
1047 return F2FS_I_SB(mapping->host);
1050 static inline struct f2fs_sb_info *F2FS_P_SB(struct page *page)
1052 return F2FS_M_SB(page->mapping);
1055 static inline struct f2fs_super_block *F2FS_RAW_SUPER(struct f2fs_sb_info *sbi)
1057 return (struct f2fs_super_block *)(sbi->raw_super);
1060 static inline struct f2fs_checkpoint *F2FS_CKPT(struct f2fs_sb_info *sbi)
1062 return (struct f2fs_checkpoint *)(sbi->ckpt);
1065 static inline struct f2fs_node *F2FS_NODE(struct page *page)
1067 return (struct f2fs_node *)page_address(page);
1070 static inline struct f2fs_inode *F2FS_INODE(struct page *page)
1072 return &((struct f2fs_node *)page_address(page))->i;
1075 static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
1077 return (struct f2fs_nm_info *)(sbi->nm_info);
1080 static inline struct f2fs_sm_info *SM_I(struct f2fs_sb_info *sbi)
1082 return (struct f2fs_sm_info *)(sbi->sm_info);
1085 static inline struct sit_info *SIT_I(struct f2fs_sb_info *sbi)
1087 return (struct sit_info *)(SM_I(sbi)->sit_info);
1090 static inline struct free_segmap_info *FREE_I(struct f2fs_sb_info *sbi)
1092 return (struct free_segmap_info *)(SM_I(sbi)->free_info);
1095 static inline struct dirty_seglist_info *DIRTY_I(struct f2fs_sb_info *sbi)
1097 return (struct dirty_seglist_info *)(SM_I(sbi)->dirty_info);
1100 static inline struct address_space *META_MAPPING(struct f2fs_sb_info *sbi)
1102 return sbi->meta_inode->i_mapping;
1105 static inline struct address_space *NODE_MAPPING(struct f2fs_sb_info *sbi)
1107 return sbi->node_inode->i_mapping;
1110 static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
1112 return test_bit(type, &sbi->s_flag);
1115 static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1117 set_bit(type, &sbi->s_flag);
1120 static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
1122 clear_bit(type, &sbi->s_flag);
1125 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint *cp)
1127 return le64_to_cpu(cp->checkpoint_ver);
1130 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1132 unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1134 return ckpt_flags & f;
1137 static inline bool is_set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1139 return __is_set_ckpt_flags(F2FS_CKPT(sbi), f);
1142 static inline void __set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1144 unsigned int ckpt_flags;
1146 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1148 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1151 static inline void set_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1153 spin_lock(&sbi->cp_lock);
1154 __set_ckpt_flags(F2FS_CKPT(sbi), f);
1155 spin_unlock(&sbi->cp_lock);
1158 static inline void __clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
1160 unsigned int ckpt_flags;
1162 ckpt_flags = le32_to_cpu(cp->ckpt_flags);
1164 cp->ckpt_flags = cpu_to_le32(ckpt_flags);
1167 static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
1169 spin_lock(&sbi->cp_lock);
1170 __clear_ckpt_flags(F2FS_CKPT(sbi), f);
1171 spin_unlock(&sbi->cp_lock);
1174 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
1176 down_read(&sbi->cp_rwsem);
1179 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
1181 up_read(&sbi->cp_rwsem);
1184 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
1186 down_write(&sbi->cp_rwsem);
1189 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
1191 up_write(&sbi->cp_rwsem);
1194 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
1196 int reason = CP_SYNC;
1198 if (test_opt(sbi, FASTBOOT))
1199 reason = CP_FASTBOOT;
1200 if (is_sbi_flag_set(sbi, SBI_IS_CLOSE))
1205 static inline bool __remain_node_summaries(int reason)
1207 return (reason == CP_UMOUNT || reason == CP_FASTBOOT);
1210 static inline bool __exist_node_summaries(struct f2fs_sb_info *sbi)
1212 return (is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG) ||
1213 is_set_ckpt_flags(sbi, CP_FASTBOOT_FLAG));
1217 * Check whether the given nid is within node id range.
1219 static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
1221 if (unlikely(nid < F2FS_ROOT_INO(sbi)))
1223 if (unlikely(nid >= NM_I(sbi)->max_nid))
1228 #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1231 * Check whether the inode has blocks or not
1233 static inline int F2FS_HAS_BLOCKS(struct inode *inode)
1235 if (F2FS_I(inode)->i_xattr_nid)
1236 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS + 1;
1238 return inode->i_blocks > F2FS_DEFAULT_ALLOCATED_BLOCKS;
1241 static inline bool f2fs_has_xattr_block(unsigned int ofs)
1243 return ofs == XATTR_NODE_OFFSET;
1246 static inline void f2fs_i_blocks_write(struct inode *, blkcnt_t, bool);
1247 static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi,
1248 struct inode *inode, blkcnt_t *count)
1252 #ifdef CONFIG_F2FS_FAULT_INJECTION
1253 if (time_to_inject(sbi, FAULT_BLOCK))
1257 * let's increase this in prior to actual block count change in order
1258 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1260 percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
1262 spin_lock(&sbi->stat_lock);
1263 sbi->total_valid_block_count += (block_t)(*count);
1264 if (unlikely(sbi->total_valid_block_count > sbi->user_block_count)) {
1265 diff = sbi->total_valid_block_count - sbi->user_block_count;
1267 sbi->total_valid_block_count = sbi->user_block_count;
1269 spin_unlock(&sbi->stat_lock);
1270 percpu_counter_sub(&sbi->alloc_valid_block_count, diff);
1274 spin_unlock(&sbi->stat_lock);
1276 f2fs_i_blocks_write(inode, *count, true);
1280 static inline void dec_valid_block_count(struct f2fs_sb_info *sbi,
1281 struct inode *inode,
1284 spin_lock(&sbi->stat_lock);
1285 f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count);
1286 f2fs_bug_on(sbi, inode->i_blocks < count);
1287 sbi->total_valid_block_count -= (block_t)count;
1288 spin_unlock(&sbi->stat_lock);
1289 f2fs_i_blocks_write(inode, count, false);
1292 static inline void inc_page_count(struct f2fs_sb_info *sbi, int count_type)
1294 atomic_inc(&sbi->nr_pages[count_type]);
1296 if (count_type == F2FS_DIRTY_DATA || count_type == F2FS_INMEM_PAGES ||
1297 count_type == F2FS_WB_CP_DATA || count_type == F2FS_WB_DATA)
1300 set_sbi_flag(sbi, SBI_IS_DIRTY);
1303 static inline void inode_inc_dirty_pages(struct inode *inode)
1305 atomic_inc(&F2FS_I(inode)->dirty_pages);
1306 inc_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1307 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1310 static inline void dec_page_count(struct f2fs_sb_info *sbi, int count_type)
1312 atomic_dec(&sbi->nr_pages[count_type]);
1315 static inline void inode_dec_dirty_pages(struct inode *inode)
1317 if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
1318 !S_ISLNK(inode->i_mode))
1321 atomic_dec(&F2FS_I(inode)->dirty_pages);
1322 dec_page_count(F2FS_I_SB(inode), S_ISDIR(inode->i_mode) ?
1323 F2FS_DIRTY_DENTS : F2FS_DIRTY_DATA);
1326 static inline s64 get_pages(struct f2fs_sb_info *sbi, int count_type)
1328 return atomic_read(&sbi->nr_pages[count_type]);
1331 static inline int get_dirty_pages(struct inode *inode)
1333 return atomic_read(&F2FS_I(inode)->dirty_pages);
1336 static inline int get_blocktype_secs(struct f2fs_sb_info *sbi, int block_type)
1338 unsigned int pages_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg;
1339 unsigned int segs = (get_pages(sbi, block_type) + pages_per_sec - 1) >>
1340 sbi->log_blocks_per_seg;
1342 return segs / sbi->segs_per_sec;
1345 static inline block_t valid_user_blocks(struct f2fs_sb_info *sbi)
1347 return sbi->total_valid_block_count;
1350 static inline block_t discard_blocks(struct f2fs_sb_info *sbi)
1352 return sbi->discard_blks;
1355 static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
1357 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1359 /* return NAT or SIT bitmap */
1360 if (flag == NAT_BITMAP)
1361 return le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
1362 else if (flag == SIT_BITMAP)
1363 return le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
1368 static inline block_t __cp_payload(struct f2fs_sb_info *sbi)
1370 return le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload);
1373 static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
1375 struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
1378 if (__cp_payload(sbi) > 0) {
1379 if (flag == NAT_BITMAP)
1380 return &ckpt->sit_nat_version_bitmap;
1382 return (unsigned char *)ckpt + F2FS_BLKSIZE;
1384 offset = (flag == NAT_BITMAP) ?
1385 le32_to_cpu(ckpt->sit_ver_bitmap_bytesize) : 0;
1386 return &ckpt->sit_nat_version_bitmap + offset;
1390 static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
1392 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1394 if (sbi->cur_cp_pack == 2)
1395 start_addr += sbi->blocks_per_seg;
1399 static inline block_t __start_cp_next_addr(struct f2fs_sb_info *sbi)
1401 block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
1403 if (sbi->cur_cp_pack == 1)
1404 start_addr += sbi->blocks_per_seg;
1408 static inline void __set_cp_next_pack(struct f2fs_sb_info *sbi)
1410 sbi->cur_cp_pack = (sbi->cur_cp_pack == 1) ? 2 : 1;
1413 static inline block_t __start_sum_addr(struct f2fs_sb_info *sbi)
1415 return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
1418 static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi,
1419 struct inode *inode)
1421 block_t valid_block_count;
1422 unsigned int valid_node_count;
1424 spin_lock(&sbi->stat_lock);
1426 valid_block_count = sbi->total_valid_block_count + 1;
1427 if (unlikely(valid_block_count > sbi->user_block_count)) {
1428 spin_unlock(&sbi->stat_lock);
1432 valid_node_count = sbi->total_valid_node_count + 1;
1433 if (unlikely(valid_node_count > sbi->total_node_count)) {
1434 spin_unlock(&sbi->stat_lock);
1439 f2fs_i_blocks_write(inode, 1, true);
1441 sbi->total_valid_node_count++;
1442 sbi->total_valid_block_count++;
1443 spin_unlock(&sbi->stat_lock);
1445 percpu_counter_inc(&sbi->alloc_valid_block_count);
1449 static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
1450 struct inode *inode)
1452 spin_lock(&sbi->stat_lock);
1454 f2fs_bug_on(sbi, !sbi->total_valid_block_count);
1455 f2fs_bug_on(sbi, !sbi->total_valid_node_count);
1456 f2fs_bug_on(sbi, !inode->i_blocks);
1458 f2fs_i_blocks_write(inode, 1, false);
1459 sbi->total_valid_node_count--;
1460 sbi->total_valid_block_count--;
1462 spin_unlock(&sbi->stat_lock);
1465 static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
1467 return sbi->total_valid_node_count;
1470 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
1472 percpu_counter_inc(&sbi->total_valid_inode_count);
1475 static inline void dec_valid_inode_count(struct f2fs_sb_info *sbi)
1477 percpu_counter_dec(&sbi->total_valid_inode_count);
1480 static inline s64 valid_inode_count(struct f2fs_sb_info *sbi)
1482 return percpu_counter_sum_positive(&sbi->total_valid_inode_count);
1485 static inline struct page *f2fs_grab_cache_page(struct address_space *mapping,
1486 pgoff_t index, bool for_write)
1488 #ifdef CONFIG_F2FS_FAULT_INJECTION
1489 struct page *page = find_lock_page(mapping, index);
1494 if (time_to_inject(F2FS_M_SB(mapping), FAULT_PAGE_ALLOC))
1498 return grab_cache_page(mapping, index);
1499 return grab_cache_page_write_begin(mapping, index, AOP_FLAG_NOFS);
1502 static inline void f2fs_copy_page(struct page *src, struct page *dst)
1504 char *src_kaddr = kmap(src);
1505 char *dst_kaddr = kmap(dst);
1507 memcpy(dst_kaddr, src_kaddr, PAGE_SIZE);
1512 static inline void f2fs_put_page(struct page *page, int unlock)
1518 f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
1524 static inline void f2fs_put_dnode(struct dnode_of_data *dn)
1527 f2fs_put_page(dn->node_page, 1);
1528 if (dn->inode_page && dn->node_page != dn->inode_page)
1529 f2fs_put_page(dn->inode_page, 0);
1530 dn->node_page = NULL;
1531 dn->inode_page = NULL;
1534 static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
1537 return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
1540 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
1545 entry = kmem_cache_alloc(cachep, flags);
1547 entry = kmem_cache_alloc(cachep, flags | __GFP_NOFAIL);
1551 static inline struct bio *f2fs_bio_alloc(int npages)
1555 /* No failure on bio allocation */
1556 bio = bio_alloc(GFP_NOIO, npages);
1558 bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
1562 static inline void f2fs_radix_tree_insert(struct radix_tree_root *root,
1563 unsigned long index, void *item)
1565 while (radix_tree_insert(root, index, item))
1569 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1571 static inline bool IS_INODE(struct page *page)
1573 struct f2fs_node *p = F2FS_NODE(page);
1575 return RAW_IS_INODE(p);
1578 static inline __le32 *blkaddr_in_node(struct f2fs_node *node)
1580 return RAW_IS_INODE(node) ? node->i.i_addr : node->dn.addr;
1583 static inline block_t datablock_addr(struct page *node_page,
1584 unsigned int offset)
1586 struct f2fs_node *raw_node;
1589 raw_node = F2FS_NODE(node_page);
1590 addr_array = blkaddr_in_node(raw_node);
1591 return le32_to_cpu(addr_array[offset]);
1594 static inline int f2fs_test_bit(unsigned int nr, char *addr)
1599 mask = 1 << (7 - (nr & 0x07));
1600 return mask & *addr;
1603 static inline void f2fs_set_bit(unsigned int nr, char *addr)
1608 mask = 1 << (7 - (nr & 0x07));
1612 static inline void f2fs_clear_bit(unsigned int nr, char *addr)
1617 mask = 1 << (7 - (nr & 0x07));
1621 static inline int f2fs_test_and_set_bit(unsigned int nr, char *addr)
1627 mask = 1 << (7 - (nr & 0x07));
1633 static inline int f2fs_test_and_clear_bit(unsigned int nr, char *addr)
1639 mask = 1 << (7 - (nr & 0x07));
1645 static inline void f2fs_change_bit(unsigned int nr, char *addr)
1650 mask = 1 << (7 - (nr & 0x07));
1654 /* used for f2fs_inode_info->flags */
1656 FI_NEW_INODE, /* indicate newly allocated inode */
1657 FI_DIRTY_INODE, /* indicate inode is dirty or not */
1658 FI_AUTO_RECOVER, /* indicate inode is recoverable */
1659 FI_DIRTY_DIR, /* indicate directory has dirty pages */
1660 FI_INC_LINK, /* need to increment i_nlink */
1661 FI_ACL_MODE, /* indicate acl mode */
1662 FI_NO_ALLOC, /* should not allocate any blocks */
1663 FI_FREE_NID, /* free allocated nide */
1664 FI_NO_EXTENT, /* not to use the extent cache */
1665 FI_INLINE_XATTR, /* used for inline xattr */
1666 FI_INLINE_DATA, /* used for inline data*/
1667 FI_INLINE_DENTRY, /* used for inline dentry */
1668 FI_APPEND_WRITE, /* inode has appended data */
1669 FI_UPDATE_WRITE, /* inode has in-place-update data */
1670 FI_NEED_IPU, /* used for ipu per file */
1671 FI_ATOMIC_FILE, /* indicate atomic file */
1672 FI_ATOMIC_COMMIT, /* indicate the state of atomical committing */
1673 FI_VOLATILE_FILE, /* indicate volatile file */
1674 FI_FIRST_BLOCK_WRITTEN, /* indicate #0 data block was written */
1675 FI_DROP_CACHE, /* drop dirty page cache */
1676 FI_DATA_EXIST, /* indicate data exists */
1677 FI_INLINE_DOTS, /* indicate inline dot dentries */
1678 FI_DO_DEFRAG, /* indicate defragment is running */
1679 FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
1680 FI_NO_PREALLOC, /* indicate skipped preallocated blocks */
1683 static inline void __mark_inode_dirty_flag(struct inode *inode,
1687 case FI_INLINE_XATTR:
1688 case FI_INLINE_DATA:
1689 case FI_INLINE_DENTRY:
1693 case FI_INLINE_DOTS:
1694 f2fs_mark_inode_dirty_sync(inode, true);
1698 static inline void set_inode_flag(struct inode *inode, int flag)
1700 if (!test_bit(flag, &F2FS_I(inode)->flags))
1701 set_bit(flag, &F2FS_I(inode)->flags);
1702 __mark_inode_dirty_flag(inode, flag, true);
1705 static inline int is_inode_flag_set(struct inode *inode, int flag)
1707 return test_bit(flag, &F2FS_I(inode)->flags);
1710 static inline void clear_inode_flag(struct inode *inode, int flag)
1712 if (test_bit(flag, &F2FS_I(inode)->flags))
1713 clear_bit(flag, &F2FS_I(inode)->flags);
1714 __mark_inode_dirty_flag(inode, flag, false);
1717 static inline void set_acl_inode(struct inode *inode, umode_t mode)
1719 F2FS_I(inode)->i_acl_mode = mode;
1720 set_inode_flag(inode, FI_ACL_MODE);
1721 f2fs_mark_inode_dirty_sync(inode, false);
1724 static inline void f2fs_i_links_write(struct inode *inode, bool inc)
1730 f2fs_mark_inode_dirty_sync(inode, true);
1733 static inline void f2fs_i_blocks_write(struct inode *inode,
1734 blkcnt_t diff, bool add)
1736 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1737 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1739 inode->i_blocks = add ? inode->i_blocks + diff :
1740 inode->i_blocks - diff;
1741 f2fs_mark_inode_dirty_sync(inode, true);
1742 if (clean || recover)
1743 set_inode_flag(inode, FI_AUTO_RECOVER);
1746 static inline void f2fs_i_size_write(struct inode *inode, loff_t i_size)
1748 bool clean = !is_inode_flag_set(inode, FI_DIRTY_INODE);
1749 bool recover = is_inode_flag_set(inode, FI_AUTO_RECOVER);
1751 if (i_size_read(inode) == i_size)
1754 i_size_write(inode, i_size);
1755 f2fs_mark_inode_dirty_sync(inode, true);
1756 if (clean || recover)
1757 set_inode_flag(inode, FI_AUTO_RECOVER);
1760 static inline void f2fs_i_depth_write(struct inode *inode, unsigned int depth)
1762 F2FS_I(inode)->i_current_depth = depth;
1763 f2fs_mark_inode_dirty_sync(inode, true);
1766 static inline void f2fs_i_xnid_write(struct inode *inode, nid_t xnid)
1768 F2FS_I(inode)->i_xattr_nid = xnid;
1769 f2fs_mark_inode_dirty_sync(inode, true);
1772 static inline void f2fs_i_pino_write(struct inode *inode, nid_t pino)
1774 F2FS_I(inode)->i_pino = pino;
1775 f2fs_mark_inode_dirty_sync(inode, true);
1778 static inline void get_inline_info(struct inode *inode, struct f2fs_inode *ri)
1780 struct f2fs_inode_info *fi = F2FS_I(inode);
1782 if (ri->i_inline & F2FS_INLINE_XATTR)
1783 set_bit(FI_INLINE_XATTR, &fi->flags);
1784 if (ri->i_inline & F2FS_INLINE_DATA)
1785 set_bit(FI_INLINE_DATA, &fi->flags);
1786 if (ri->i_inline & F2FS_INLINE_DENTRY)
1787 set_bit(FI_INLINE_DENTRY, &fi->flags);
1788 if (ri->i_inline & F2FS_DATA_EXIST)
1789 set_bit(FI_DATA_EXIST, &fi->flags);
1790 if (ri->i_inline & F2FS_INLINE_DOTS)
1791 set_bit(FI_INLINE_DOTS, &fi->flags);
1794 static inline void set_raw_inline(struct inode *inode, struct f2fs_inode *ri)
1798 if (is_inode_flag_set(inode, FI_INLINE_XATTR))
1799 ri->i_inline |= F2FS_INLINE_XATTR;
1800 if (is_inode_flag_set(inode, FI_INLINE_DATA))
1801 ri->i_inline |= F2FS_INLINE_DATA;
1802 if (is_inode_flag_set(inode, FI_INLINE_DENTRY))
1803 ri->i_inline |= F2FS_INLINE_DENTRY;
1804 if (is_inode_flag_set(inode, FI_DATA_EXIST))
1805 ri->i_inline |= F2FS_DATA_EXIST;
1806 if (is_inode_flag_set(inode, FI_INLINE_DOTS))
1807 ri->i_inline |= F2FS_INLINE_DOTS;
1810 static inline int f2fs_has_inline_xattr(struct inode *inode)
1812 return is_inode_flag_set(inode, FI_INLINE_XATTR);
1815 static inline unsigned int addrs_per_inode(struct inode *inode)
1817 if (f2fs_has_inline_xattr(inode))
1818 return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
1819 return DEF_ADDRS_PER_INODE;
1822 static inline void *inline_xattr_addr(struct page *page)
1824 struct f2fs_inode *ri = F2FS_INODE(page);
1826 return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
1827 F2FS_INLINE_XATTR_ADDRS]);
1830 static inline int inline_xattr_size(struct inode *inode)
1832 if (f2fs_has_inline_xattr(inode))
1833 return F2FS_INLINE_XATTR_ADDRS << 2;
1838 static inline int f2fs_has_inline_data(struct inode *inode)
1840 return is_inode_flag_set(inode, FI_INLINE_DATA);
1843 static inline void f2fs_clear_inline_inode(struct inode *inode)
1845 clear_inode_flag(inode, FI_INLINE_DATA);
1846 clear_inode_flag(inode, FI_DATA_EXIST);
1849 static inline int f2fs_exist_data(struct inode *inode)
1851 return is_inode_flag_set(inode, FI_DATA_EXIST);
1854 static inline int f2fs_has_inline_dots(struct inode *inode)
1856 return is_inode_flag_set(inode, FI_INLINE_DOTS);
1859 static inline bool f2fs_is_atomic_file(struct inode *inode)
1861 return is_inode_flag_set(inode, FI_ATOMIC_FILE);
1864 static inline bool f2fs_is_commit_atomic_write(struct inode *inode)
1866 return is_inode_flag_set(inode, FI_ATOMIC_COMMIT);
1869 static inline bool f2fs_is_volatile_file(struct inode *inode)
1871 return is_inode_flag_set(inode, FI_VOLATILE_FILE);
1874 static inline bool f2fs_is_first_block_written(struct inode *inode)
1876 return is_inode_flag_set(inode, FI_FIRST_BLOCK_WRITTEN);
1879 static inline bool f2fs_is_drop_cache(struct inode *inode)
1881 return is_inode_flag_set(inode, FI_DROP_CACHE);
1884 static inline void *inline_data_addr(struct page *page)
1886 struct f2fs_inode *ri = F2FS_INODE(page);
1888 return (void *)&(ri->i_addr[1]);
1891 static inline int f2fs_has_inline_dentry(struct inode *inode)
1893 return is_inode_flag_set(inode, FI_INLINE_DENTRY);
1896 static inline void f2fs_dentry_kunmap(struct inode *dir, struct page *page)
1898 if (!f2fs_has_inline_dentry(dir))
1902 static inline int is_file(struct inode *inode, int type)
1904 return F2FS_I(inode)->i_advise & type;
1907 static inline void set_file(struct inode *inode, int type)
1909 F2FS_I(inode)->i_advise |= type;
1910 f2fs_mark_inode_dirty_sync(inode, true);
1913 static inline void clear_file(struct inode *inode, int type)
1915 F2FS_I(inode)->i_advise &= ~type;
1916 f2fs_mark_inode_dirty_sync(inode, true);
1919 static inline bool f2fs_skip_inode_update(struct inode *inode, int dsync)
1922 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1925 spin_lock(&sbi->inode_lock[DIRTY_META]);
1926 ret = list_empty(&F2FS_I(inode)->gdirty_list);
1927 spin_unlock(&sbi->inode_lock[DIRTY_META]);
1930 if (!is_inode_flag_set(inode, FI_AUTO_RECOVER) ||
1931 file_keep_isize(inode) ||
1932 i_size_read(inode) & PAGE_MASK)
1934 return F2FS_I(inode)->last_disk_size == i_size_read(inode);
1937 static inline int f2fs_readonly(struct super_block *sb)
1939 return sb->s_flags & MS_RDONLY;
1942 static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi)
1944 return is_set_ckpt_flags(sbi, CP_ERROR_FLAG);
1947 static inline bool is_dot_dotdot(const struct qstr *str)
1949 if (str->len == 1 && str->name[0] == '.')
1952 if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
1958 static inline bool f2fs_may_extent_tree(struct inode *inode)
1960 if (!test_opt(F2FS_I_SB(inode), EXTENT_CACHE) ||
1961 is_inode_flag_set(inode, FI_NO_EXTENT))
1964 return S_ISREG(inode->i_mode);
1967 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
1968 size_t size, gfp_t flags)
1970 #ifdef CONFIG_F2FS_FAULT_INJECTION
1971 if (time_to_inject(sbi, FAULT_KMALLOC))
1974 return kmalloc(size, flags);
1977 static inline void *f2fs_kvmalloc(size_t size, gfp_t flags)
1981 ret = kmalloc(size, flags | __GFP_NOWARN);
1983 ret = __vmalloc(size, flags, PAGE_KERNEL);
1987 static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
1991 ret = kzalloc(size, flags | __GFP_NOWARN);
1993 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
1997 #define get_inode_mode(i) \
1998 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
1999 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2001 /* get offset of first page in next direct node */
2002 #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
2003 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
2004 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
2005 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
2010 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
2011 void truncate_data_blocks(struct dnode_of_data *dn);
2012 int truncate_blocks(struct inode *inode, u64 from, bool lock);
2013 int f2fs_truncate(struct inode *inode);
2014 int f2fs_getattr(struct vfsmount *mnt, struct dentry *dentry,
2015 struct kstat *stat);
2016 int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
2017 int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
2018 int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
2019 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
2020 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
2025 void f2fs_set_inode_flags(struct inode *inode);
2026 struct inode *f2fs_iget(struct super_block *sb, unsigned long ino);
2027 struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino);
2028 int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink);
2029 int update_inode(struct inode *inode, struct page *node_page);
2030 int update_inode_page(struct inode *inode);
2031 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc);
2032 void f2fs_evict_inode(struct inode *inode);
2033 void handle_failed_inode(struct inode *inode);
2038 struct dentry *f2fs_get_parent(struct dentry *child);
2043 void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
2044 unsigned char get_de_type(struct f2fs_dir_entry *de);
2045 struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
2046 f2fs_hash_t namehash, int *max_slots,
2047 struct f2fs_dentry_ptr *d);
2048 int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
2049 unsigned int start_pos, struct fscrypt_str *fstr);
2050 void do_make_empty_dir(struct inode *inode, struct inode *parent,
2051 struct f2fs_dentry_ptr *d);
2052 struct page *init_inode_metadata(struct inode *inode, struct inode *dir,
2053 const struct qstr *new_name,
2054 const struct qstr *orig_name, struct page *dpage);
2055 void update_parent_metadata(struct inode *dir, struct inode *inode,
2056 unsigned int current_depth);
2057 int room_for_filename(const void *bitmap, int slots, int max_slots);
2058 void f2fs_drop_nlink(struct inode *dir, struct inode *inode);
2059 struct f2fs_dir_entry *__f2fs_find_entry(struct inode *dir,
2060 struct fscrypt_name *fname, struct page **res_page);
2061 struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
2062 const struct qstr *child, struct page **res_page);
2063 struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p);
2064 ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
2065 struct page **page);
2066 void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
2067 struct page *page, struct inode *inode);
2068 int update_dent_inode(struct inode *inode, struct inode *to,
2069 const struct qstr *name);
2070 void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
2071 const struct qstr *name, f2fs_hash_t name_hash,
2072 unsigned int bit_pos);
2073 int f2fs_add_regular_entry(struct inode *dir, const struct qstr *new_name,
2074 const struct qstr *orig_name,
2075 struct inode *inode, nid_t ino, umode_t mode);
2076 int __f2fs_do_add_link(struct inode *dir, struct fscrypt_name *fname,
2077 struct inode *inode, nid_t ino, umode_t mode);
2078 int __f2fs_add_link(struct inode *dir, const struct qstr *name,
2079 struct inode *inode, nid_t ino, umode_t mode);
2080 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
2081 struct inode *dir, struct inode *inode);
2082 int f2fs_do_tmpfile(struct inode *inode, struct inode *dir);
2083 bool f2fs_empty_dir(struct inode *dir);
2085 static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
2087 return __f2fs_add_link(d_inode(dentry->d_parent), &dentry->d_name,
2088 inode, inode->i_ino, inode->i_mode);
2094 int f2fs_inode_dirtied(struct inode *inode, bool sync);
2095 void f2fs_inode_synced(struct inode *inode);
2096 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
2097 int f2fs_sync_fs(struct super_block *sb, int sync);
2098 extern __printf(3, 4)
2099 void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...);
2100 int sanity_check_ckpt(struct f2fs_sb_info *sbi);
2105 f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info);
2110 struct dnode_of_data;
2113 bool available_free_memory(struct f2fs_sb_info *sbi, int type);
2114 int need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
2115 bool is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
2116 bool need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
2117 void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni);
2118 pgoff_t get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
2119 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
2120 int truncate_inode_blocks(struct inode *inode, pgoff_t from);
2121 int truncate_xattr_node(struct inode *inode, struct page *page);
2122 int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino);
2123 int remove_inode_page(struct inode *inode);
2124 struct page *new_inode_page(struct inode *inode);
2125 struct page *new_node_page(struct dnode_of_data *dn,
2126 unsigned int ofs, struct page *ipage);
2127 void ra_node_page(struct f2fs_sb_info *sbi, nid_t nid);
2128 struct page *get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid);
2129 struct page *get_node_page_ra(struct page *parent, int start);
2130 void move_node_page(struct page *node_page, int gc_type);
2131 int fsync_node_pages(struct f2fs_sb_info *sbi, struct inode *inode,
2132 struct writeback_control *wbc, bool atomic);
2133 int sync_node_pages(struct f2fs_sb_info *sbi, struct writeback_control *wbc);
2134 void build_free_nids(struct f2fs_sb_info *sbi, bool sync);
2135 bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid);
2136 void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid);
2137 void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid);
2138 int try_to_free_nids(struct f2fs_sb_info *sbi, int nr_shrink);
2139 void recover_inline_xattr(struct inode *inode, struct page *page);
2140 int recover_xattr_data(struct inode *inode, struct page *page,
2142 int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
2143 int restore_node_summary(struct f2fs_sb_info *sbi,
2144 unsigned int segno, struct f2fs_summary_block *sum);
2145 void flush_nat_entries(struct f2fs_sb_info *sbi);
2146 int build_node_manager(struct f2fs_sb_info *sbi);
2147 void destroy_node_manager(struct f2fs_sb_info *sbi);
2148 int __init create_node_manager_caches(void);
2149 void destroy_node_manager_caches(void);
2154 void register_inmem_page(struct inode *inode, struct page *page);
2155 void drop_inmem_pages(struct inode *inode);
2156 int commit_inmem_pages(struct inode *inode);
2157 void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need);
2158 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi);
2159 int f2fs_issue_flush(struct f2fs_sb_info *sbi);
2160 int create_flush_cmd_control(struct f2fs_sb_info *sbi);
2161 void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
2162 void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
2163 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
2164 void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
2165 void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr);
2166 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2167 void release_discard_addrs(struct f2fs_sb_info *sbi);
2168 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
2169 void allocate_new_segments(struct f2fs_sb_info *sbi);
2170 int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range);
2171 bool exist_trim_candidates(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2172 struct page *get_sum_page(struct f2fs_sb_info *sbi, unsigned int segno);
2173 void update_meta_page(struct f2fs_sb_info *sbi, void *src, block_t blk_addr);
2174 void write_meta_page(struct f2fs_sb_info *sbi, struct page *page);
2175 void write_node_page(unsigned int nid, struct f2fs_io_info *fio);
2176 void write_data_page(struct dnode_of_data *dn, struct f2fs_io_info *fio);
2177 void rewrite_data_page(struct f2fs_io_info *fio);
2178 void __f2fs_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
2179 block_t old_blkaddr, block_t new_blkaddr,
2180 bool recover_curseg, bool recover_newaddr);
2181 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
2182 block_t old_addr, block_t new_addr,
2183 unsigned char version, bool recover_curseg,
2184 bool recover_newaddr);
2185 void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
2186 block_t old_blkaddr, block_t *new_blkaddr,
2187 struct f2fs_summary *sum, int type);
2188 void f2fs_wait_on_page_writeback(struct page *page,
2189 enum page_type type, bool ordered);
2190 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi,
2192 void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2193 void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
2194 int lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
2195 unsigned int val, int alloc);
2196 void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2197 int build_segment_manager(struct f2fs_sb_info *sbi);
2198 void destroy_segment_manager(struct f2fs_sb_info *sbi);
2199 int __init create_segment_manager_caches(void);
2200 void destroy_segment_manager_caches(void);
2205 void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io);
2206 struct page *grab_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2207 struct page *get_meta_page(struct f2fs_sb_info *sbi, pgoff_t index);
2208 struct page *get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index);
2209 bool is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type);
2210 int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
2211 int type, bool sync);
2212 void ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
2213 long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
2215 void add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2216 void remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
2217 void release_ino_entry(struct f2fs_sb_info *sbi, bool all);
2218 bool exist_written_data(struct f2fs_sb_info *sbi, nid_t ino, int mode);
2219 int f2fs_sync_inode_meta(struct f2fs_sb_info *sbi);
2220 int acquire_orphan_inode(struct f2fs_sb_info *sbi);
2221 void release_orphan_inode(struct f2fs_sb_info *sbi);
2222 void add_orphan_inode(struct inode *inode);
2223 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino);
2224 int recover_orphan_inodes(struct f2fs_sb_info *sbi);
2225 int get_valid_checkpoint(struct f2fs_sb_info *sbi);
2226 void update_dirty_page(struct inode *inode, struct page *page);
2227 void remove_dirty_inode(struct inode *inode);
2228 int sync_dirty_inodes(struct f2fs_sb_info *sbi, enum inode_type type);
2229 int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc);
2230 void init_ino_entry_info(struct f2fs_sb_info *sbi);
2231 int __init create_checkpoint_caches(void);
2232 void destroy_checkpoint_caches(void);
2237 void f2fs_submit_merged_bio(struct f2fs_sb_info *sbi, enum page_type type,
2239 void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *sbi,
2240 struct inode *inode, nid_t ino, pgoff_t idx,
2241 enum page_type type, int rw);
2242 void f2fs_flush_merged_bios(struct f2fs_sb_info *sbi);
2243 int f2fs_submit_page_bio(struct f2fs_io_info *fio);
2244 int f2fs_submit_page_mbio(struct f2fs_io_info *fio);
2245 struct block_device *f2fs_target_device(struct f2fs_sb_info *sbi,
2246 block_t blk_addr, struct bio *bio);
2247 int f2fs_target_device_index(struct f2fs_sb_info *sbi, block_t blkaddr);
2248 void set_data_blkaddr(struct dnode_of_data *dn);
2249 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
2250 int reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
2251 int reserve_new_block(struct dnode_of_data *dn);
2252 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
2253 int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
2254 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
2255 struct page *get_read_data_page(struct inode *inode, pgoff_t index,
2256 int op_flags, bool for_write);
2257 struct page *find_data_page(struct inode *inode, pgoff_t index);
2258 struct page *get_lock_data_page(struct inode *inode, pgoff_t index,
2260 struct page *get_new_data_page(struct inode *inode,
2261 struct page *ipage, pgoff_t index, bool new_i_size);
2262 int do_write_data_page(struct f2fs_io_info *fio);
2263 int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
2264 int create, int flag);
2265 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
2266 u64 start, u64 len);
2267 void f2fs_set_page_dirty_nobuffers(struct page *page);
2268 void f2fs_invalidate_page(struct page *page, unsigned int offset,
2269 unsigned int length);
2270 int f2fs_release_page(struct page *page, gfp_t wait);
2271 #ifdef CONFIG_MIGRATION
2272 int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
2273 struct page *page, enum migrate_mode mode);
2279 int start_gc_thread(struct f2fs_sb_info *sbi);
2280 void stop_gc_thread(struct f2fs_sb_info *sbi);
2281 block_t start_bidx_of_node(unsigned int node_ofs, struct inode *inode);
2282 int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background);
2283 void build_gc_manager(struct f2fs_sb_info *sbi);
2288 int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only);
2289 bool space_for_roll_forward(struct f2fs_sb_info *sbi);
2294 #ifdef CONFIG_F2FS_STAT_FS
2295 struct f2fs_stat_info {
2296 struct list_head stat_list;
2297 struct f2fs_sb_info *sbi;
2298 int all_area_segs, sit_area_segs, nat_area_segs, ssa_area_segs;
2299 int main_area_segs, main_area_sections, main_area_zones;
2300 unsigned long long hit_largest, hit_cached, hit_rbtree;
2301 unsigned long long hit_total, total_ext;
2302 int ext_tree, zombie_tree, ext_node;
2303 int ndirty_node, ndirty_dent, ndirty_meta, ndirty_data, ndirty_imeta;
2305 unsigned int ndirty_dirs, ndirty_files, ndirty_all;
2306 int nats, dirty_nats, sits, dirty_sits, free_nids, alloc_nids;
2307 int total_count, utilization;
2308 int bg_gc, nr_wb_cp_data, nr_wb_data, nr_flush, nr_discard;
2309 int inline_xattr, inline_inode, inline_dir, append, update, orphans;
2310 int aw_cnt, max_aw_cnt;
2311 unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
2312 unsigned int bimodal, avg_vblocks;
2313 int util_free, util_valid, util_invalid;
2314 int rsvd_segs, overp_segs;
2315 int dirty_count, node_pages, meta_pages;
2316 int prefree_count, call_count, cp_count, bg_cp_count;
2317 int tot_segs, node_segs, data_segs, free_segs, free_secs;
2318 int bg_node_segs, bg_data_segs;
2319 int tot_blks, data_blks, node_blks;
2320 int bg_data_blks, bg_node_blks;
2321 int curseg[NR_CURSEG_TYPE];
2322 int cursec[NR_CURSEG_TYPE];
2323 int curzone[NR_CURSEG_TYPE];
2325 unsigned int segment_count[2];
2326 unsigned int block_count[2];
2327 unsigned int inplace_count;
2328 unsigned long long base_mem, cache_mem, page_mem;
2331 static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
2333 return (struct f2fs_stat_info *)sbi->stat_info;
2336 #define stat_inc_cp_count(si) ((si)->cp_count++)
2337 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2338 #define stat_inc_call_count(si) ((si)->call_count++)
2339 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2340 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2341 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2342 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2343 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2344 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2345 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2346 #define stat_inc_inline_xattr(inode) \
2348 if (f2fs_has_inline_xattr(inode)) \
2349 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2351 #define stat_dec_inline_xattr(inode) \
2353 if (f2fs_has_inline_xattr(inode)) \
2354 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2356 #define stat_inc_inline_inode(inode) \
2358 if (f2fs_has_inline_data(inode)) \
2359 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2361 #define stat_dec_inline_inode(inode) \
2363 if (f2fs_has_inline_data(inode)) \
2364 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2366 #define stat_inc_inline_dir(inode) \
2368 if (f2fs_has_inline_dentry(inode)) \
2369 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2371 #define stat_dec_inline_dir(inode) \
2373 if (f2fs_has_inline_dentry(inode)) \
2374 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2376 #define stat_inc_seg_type(sbi, curseg) \
2377 ((sbi)->segment_count[(curseg)->alloc_type]++)
2378 #define stat_inc_block_count(sbi, curseg) \
2379 ((sbi)->block_count[(curseg)->alloc_type]++)
2380 #define stat_inc_inplace_blocks(sbi) \
2381 (atomic_inc(&(sbi)->inplace_count))
2382 #define stat_inc_atomic_write(inode) \
2383 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2384 #define stat_dec_atomic_write(inode) \
2385 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2386 #define stat_update_max_atomic_write(inode) \
2388 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2389 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2391 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2393 #define stat_inc_seg_count(sbi, type, gc_type) \
2395 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2397 if (type == SUM_TYPE_DATA) { \
2399 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2402 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2406 #define stat_inc_tot_blk_count(si, blks) \
2407 (si->tot_blks += (blks))
2409 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2411 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2412 stat_inc_tot_blk_count(si, blks); \
2413 si->data_blks += (blks); \
2414 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
2417 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2419 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2420 stat_inc_tot_blk_count(si, blks); \
2421 si->node_blks += (blks); \
2422 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
2425 int f2fs_build_stats(struct f2fs_sb_info *sbi);
2426 void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
2427 int __init f2fs_create_root_stats(void);
2428 void f2fs_destroy_root_stats(void);
2430 #define stat_inc_cp_count(si)
2431 #define stat_inc_bg_cp_count(si)
2432 #define stat_inc_call_count(si)
2433 #define stat_inc_bggc_count(si)
2434 #define stat_inc_dirty_inode(sbi, type)
2435 #define stat_dec_dirty_inode(sbi, type)
2436 #define stat_inc_total_hit(sb)
2437 #define stat_inc_rbtree_node_hit(sb)
2438 #define stat_inc_largest_node_hit(sbi)
2439 #define stat_inc_cached_node_hit(sbi)
2440 #define stat_inc_inline_xattr(inode)
2441 #define stat_dec_inline_xattr(inode)
2442 #define stat_inc_inline_inode(inode)
2443 #define stat_dec_inline_inode(inode)
2444 #define stat_inc_inline_dir(inode)
2445 #define stat_dec_inline_dir(inode)
2446 #define stat_inc_atomic_write(inode)
2447 #define stat_dec_atomic_write(inode)
2448 #define stat_update_max_atomic_write(inode)
2449 #define stat_inc_seg_type(sbi, curseg)
2450 #define stat_inc_block_count(sbi, curseg)
2451 #define stat_inc_inplace_blocks(sbi)
2452 #define stat_inc_seg_count(sbi, type, gc_type)
2453 #define stat_inc_tot_blk_count(si, blks)
2454 #define stat_inc_data_blk_count(sbi, blks, gc_type)
2455 #define stat_inc_node_blk_count(sbi, blks, gc_type)
2457 static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
2458 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
2459 static inline int __init f2fs_create_root_stats(void) { return 0; }
2460 static inline void f2fs_destroy_root_stats(void) { }
2463 extern const struct file_operations f2fs_dir_operations;
2464 extern const struct file_operations f2fs_file_operations;
2465 extern const struct inode_operations f2fs_file_inode_operations;
2466 extern const struct address_space_operations f2fs_dblock_aops;
2467 extern const struct address_space_operations f2fs_node_aops;
2468 extern const struct address_space_operations f2fs_meta_aops;
2469 extern const struct inode_operations f2fs_dir_inode_operations;
2470 extern const struct inode_operations f2fs_symlink_inode_operations;
2471 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations;
2472 extern const struct inode_operations f2fs_special_inode_operations;
2473 extern struct kmem_cache *inode_entry_slab;
2478 bool f2fs_may_inline_data(struct inode *inode);
2479 bool f2fs_may_inline_dentry(struct inode *inode);
2480 void read_inline_data(struct page *page, struct page *ipage);
2481 bool truncate_inline_inode(struct page *ipage, u64 from);
2482 int f2fs_read_inline_data(struct inode *inode, struct page *page);
2483 int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
2484 int f2fs_convert_inline_inode(struct inode *inode);
2485 int f2fs_write_inline_data(struct inode *inode, struct page *page);
2486 bool recover_inline_data(struct inode *inode, struct page *npage);
2487 struct f2fs_dir_entry *find_in_inline_dir(struct inode *dir,
2488 struct fscrypt_name *fname, struct page **res_page);
2489 int make_empty_inline_dir(struct inode *inode, struct inode *parent,
2490 struct page *ipage);
2491 int f2fs_add_inline_entry(struct inode *dir, const struct qstr *new_name,
2492 const struct qstr *orig_name,
2493 struct inode *inode, nid_t ino, umode_t mode);
2494 void f2fs_delete_inline_entry(struct f2fs_dir_entry *dentry, struct page *page,
2495 struct inode *dir, struct inode *inode);
2496 bool f2fs_empty_inline_dir(struct inode *dir);
2497 int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx,
2498 struct fscrypt_str *fstr);
2499 int f2fs_inline_data_fiemap(struct inode *inode,
2500 struct fiemap_extent_info *fieinfo,
2501 __u64 start, __u64 len);
2506 unsigned long f2fs_shrink_count(struct shrinker *shrink,
2507 struct shrink_control *sc);
2508 unsigned long f2fs_shrink_scan(struct shrinker *shrink,
2509 struct shrink_control *sc);
2510 void f2fs_join_shrinker(struct f2fs_sb_info *sbi);
2511 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi);
2516 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink);
2517 bool f2fs_init_extent_tree(struct inode *inode, struct f2fs_extent *i_ext);
2518 void f2fs_drop_extent_tree(struct inode *inode);
2519 unsigned int f2fs_destroy_extent_node(struct inode *inode);
2520 void f2fs_destroy_extent_tree(struct inode *inode);
2521 bool f2fs_lookup_extent_cache(struct inode *inode, pgoff_t pgofs,
2522 struct extent_info *ei);
2523 void f2fs_update_extent_cache(struct dnode_of_data *dn);
2524 void f2fs_update_extent_cache_range(struct dnode_of_data *dn,
2525 pgoff_t fofs, block_t blkaddr, unsigned int len);
2526 void init_extent_cache_info(struct f2fs_sb_info *sbi);
2527 int __init create_extent_cache(void);
2528 void destroy_extent_cache(void);
2533 static inline bool f2fs_encrypted_inode(struct inode *inode)
2535 return file_is_encrypt(inode);
2538 static inline void f2fs_set_encrypted_inode(struct inode *inode)
2540 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2541 file_set_encrypt(inode);
2545 static inline bool f2fs_bio_encrypted(struct bio *bio)
2547 return bio->bi_private != NULL;
2550 static inline int f2fs_sb_has_crypto(struct super_block *sb)
2552 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
2555 static inline int f2fs_sb_mounted_blkzoned(struct super_block *sb)
2557 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_BLKZONED);
2560 #ifdef CONFIG_BLK_DEV_ZONED
2561 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
2562 struct block_device *bdev, block_t blkaddr)
2564 unsigned int zno = blkaddr >> sbi->log_blocks_per_blkz;
2567 for (i = 0; i < sbi->s_ndevs; i++)
2568 if (FDEV(i).bdev == bdev)
2569 return FDEV(i).blkz_type[zno];
2574 static inline bool f2fs_discard_en(struct f2fs_sb_info *sbi)
2576 struct request_queue *q = bdev_get_queue(sbi->sb->s_bdev);
2578 return blk_queue_discard(q) || f2fs_sb_mounted_blkzoned(sbi->sb);
2581 static inline void set_opt_mode(struct f2fs_sb_info *sbi, unsigned int mt)
2583 clear_opt(sbi, ADAPTIVE);
2584 clear_opt(sbi, LFS);
2587 case F2FS_MOUNT_ADAPTIVE:
2588 set_opt(sbi, ADAPTIVE);
2590 case F2FS_MOUNT_LFS:
2596 static inline bool f2fs_may_encrypt(struct inode *inode)
2598 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2599 umode_t mode = inode->i_mode;
2601 return (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode));
2607 #ifndef CONFIG_F2FS_FS_ENCRYPTION
2608 #define fscrypt_set_d_op(i)
2609 #define fscrypt_get_ctx fscrypt_notsupp_get_ctx
2610 #define fscrypt_release_ctx fscrypt_notsupp_release_ctx
2611 #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
2612 #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
2613 #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
2614 #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
2615 #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
2616 #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
2617 #define fscrypt_ioctl_set_policy fscrypt_notsupp_ioctl_set_policy
2618 #define fscrypt_ioctl_get_policy fscrypt_notsupp_ioctl_get_policy
2619 #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
2620 #define fscrypt_inherit_context fscrypt_notsupp_inherit_context
2621 #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
2622 #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
2623 #define fscrypt_setup_filename fscrypt_notsupp_setup_filename
2624 #define fscrypt_free_filename fscrypt_notsupp_free_filename
2625 #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
2626 #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
2627 #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
2628 #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
2629 #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk