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 2
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)
137 #define DISCARD_ISSUE_RATE 8
138 #define DEF_CP_INTERVAL 60 /* 60 secs */
139 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
150 * For CP/NAT/SIT/SSA readahead
160 /* for the list of ino */
162 ORPHAN_INO
, /* for orphan ino list */
163 APPEND_INO
, /* for append ino list */
164 UPDATE_INO
, /* for update ino list */
165 MAX_INO_ENTRY
, /* max. list */
169 struct list_head list
; /* list head */
170 nid_t ino
; /* inode number */
173 /* for the list of inodes to be GCed */
175 struct list_head list
; /* list head */
176 struct inode
*inode
; /* vfs inode pointer */
179 /* for the list of blockaddresses to be discarded */
180 struct discard_entry
{
181 struct list_head list
; /* list head */
182 block_t blkaddr
; /* block address to be discarded */
183 int len
; /* # of consecutive blocks of the discard */
193 struct list_head list
; /* command list */
194 struct completion wait
; /* compleation */
195 block_t lstart
; /* logical start address */
196 block_t len
; /* length */
197 struct bio
*bio
; /* bio */
198 int state
; /* state */
201 struct discard_cmd_control
{
202 struct task_struct
*f2fs_issue_discard
; /* discard thread */
203 struct list_head discard_entry_list
; /* 4KB discard entry list */
204 int nr_discards
; /* # of discards in the list */
205 struct list_head discard_cmd_list
; /* discard cmd list */
206 wait_queue_head_t discard_wait_queue
; /* waiting queue for wake-up */
207 struct mutex cmd_lock
;
208 int max_discards
; /* max. discards to be issued */
209 atomic_t submit_discard
; /* # of issued discard */
212 /* for the list of fsync inodes, used only during recovery */
213 struct fsync_inode_entry
{
214 struct list_head list
; /* list head */
215 struct inode
*inode
; /* vfs inode pointer */
216 block_t blkaddr
; /* block address locating the last fsync */
217 block_t last_dentry
; /* block address locating the last dentry */
220 #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
221 #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
223 #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
224 #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
225 #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
226 #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
228 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
229 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
231 static inline int update_nats_in_cursum(struct f2fs_journal
*journal
, int i
)
233 int before
= nats_in_cursum(journal
);
235 journal
->n_nats
= cpu_to_le16(before
+ i
);
239 static inline int update_sits_in_cursum(struct f2fs_journal
*journal
, int i
)
241 int before
= sits_in_cursum(journal
);
243 journal
->n_sits
= cpu_to_le16(before
+ i
);
247 static inline bool __has_cursum_space(struct f2fs_journal
*journal
,
250 if (type
== NAT_JOURNAL
)
251 return size
<= MAX_NAT_JENTRIES(journal
);
252 return size
<= MAX_SIT_JENTRIES(journal
);
258 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
259 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
260 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
262 #define F2FS_IOCTL_MAGIC 0xf5
263 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
264 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
265 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
266 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
267 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
268 #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
269 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
270 #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
271 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
272 struct f2fs_move_range)
274 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
275 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
276 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
279 * should be same as XFS_IOC_GOINGDOWN.
280 * Flags for going down operation used by FS_IOC_GOINGDOWN
282 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
283 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
284 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
285 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
286 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
288 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
290 * ioctl commands in 32 bit emulation
292 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
293 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
294 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
297 struct f2fs_defragment
{
302 struct f2fs_move_range
{
303 u32 dst_fd
; /* destination fd */
304 u64 pos_in
; /* start position in src_fd */
305 u64 pos_out
; /* start position in dst_fd */
306 u64 len
; /* size to move */
310 * For INODE and NODE manager
312 /* for directory operations */
313 struct f2fs_dentry_ptr
{
316 struct f2fs_dir_entry
*dentry
;
317 __u8 (*filename
)[F2FS_SLOT_LEN
];
321 static inline void make_dentry_ptr(struct inode
*inode
,
322 struct f2fs_dentry_ptr
*d
, void *src
, int type
)
327 struct f2fs_dentry_block
*t
= (struct f2fs_dentry_block
*)src
;
329 d
->max
= NR_DENTRY_IN_BLOCK
;
330 d
->bitmap
= &t
->dentry_bitmap
;
331 d
->dentry
= t
->dentry
;
332 d
->filename
= t
->filename
;
334 struct f2fs_inline_dentry
*t
= (struct f2fs_inline_dentry
*)src
;
336 d
->max
= NR_INLINE_DENTRY
;
337 d
->bitmap
= &t
->dentry_bitmap
;
338 d
->dentry
= t
->dentry
;
339 d
->filename
= t
->filename
;
344 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
345 * as its node offset to distinguish from index node blocks.
346 * But some bits are used to mark the node block.
348 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
351 ALLOC_NODE
, /* allocate a new node page if needed */
352 LOOKUP_NODE
, /* look up a node without readahead */
354 * look up a node with readahead called
359 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
361 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
363 /* vector size for gang look-up from extent cache that consists of radix tree */
364 #define EXT_TREE_VEC_SIZE 64
366 /* for in-memory extent cache entry */
367 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
369 /* number of extent info in extent cache we try to shrink */
370 #define EXTENT_CACHE_SHRINK_NUMBER 128
373 unsigned int fofs
; /* start offset in a file */
374 u32 blk
; /* start block address of the extent */
375 unsigned int len
; /* length of the extent */
379 struct rb_node rb_node
; /* rb node located in rb-tree */
380 struct list_head list
; /* node in global extent list of sbi */
381 struct extent_info ei
; /* extent info */
382 struct extent_tree
*et
; /* extent tree pointer */
386 nid_t ino
; /* inode number */
387 struct rb_root root
; /* root of extent info rb-tree */
388 struct extent_node
*cached_en
; /* recently accessed extent node */
389 struct extent_info largest
; /* largested extent info */
390 struct list_head list
; /* to be used by sbi->zombie_list */
391 rwlock_t lock
; /* protect extent info rb-tree */
392 atomic_t node_cnt
; /* # of extent node in rb-tree*/
396 * This structure is taken from ext4_map_blocks.
398 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
400 #define F2FS_MAP_NEW (1 << BH_New)
401 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
402 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
403 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
406 struct f2fs_map_blocks
{
410 unsigned int m_flags
;
411 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
414 /* for flag in get_data_block */
415 #define F2FS_GET_BLOCK_READ 0
416 #define F2FS_GET_BLOCK_DIO 1
417 #define F2FS_GET_BLOCK_FIEMAP 2
418 #define F2FS_GET_BLOCK_BMAP 3
419 #define F2FS_GET_BLOCK_PRE_DIO 4
420 #define F2FS_GET_BLOCK_PRE_AIO 5
423 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
425 #define FADVISE_COLD_BIT 0x01
426 #define FADVISE_LOST_PINO_BIT 0x02
427 #define FADVISE_ENCRYPT_BIT 0x04
428 #define FADVISE_ENC_NAME_BIT 0x08
429 #define FADVISE_KEEP_SIZE_BIT 0x10
431 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
432 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
433 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
434 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
435 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
436 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
437 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
438 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
439 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
440 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
441 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
442 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
443 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
445 #define DEF_DIR_LEVEL 0
447 struct f2fs_inode_info
{
448 struct inode vfs_inode
; /* serve a vfs inode */
449 unsigned long i_flags
; /* keep an inode flags for ioctl */
450 unsigned char i_advise
; /* use to give file attribute hints */
451 unsigned char i_dir_level
; /* use for dentry level for large dir */
452 unsigned int i_current_depth
; /* use only in directory structure */
453 unsigned int i_pino
; /* parent inode number */
454 umode_t i_acl_mode
; /* keep file acl mode temporarily */
456 /* Use below internally in f2fs*/
457 unsigned long flags
; /* use to pass per-file flags */
458 struct rw_semaphore i_sem
; /* protect fi info */
459 atomic_t dirty_pages
; /* # of dirty pages */
460 f2fs_hash_t chash
; /* hash value of given file name */
461 unsigned int clevel
; /* maximum level of given file name */
462 nid_t i_xattr_nid
; /* node id that contains xattrs */
463 unsigned long long xattr_ver
; /* cp version of xattr modification */
464 loff_t last_disk_size
; /* lastly written file size */
466 struct list_head dirty_list
; /* dirty list for dirs and files */
467 struct list_head gdirty_list
; /* linked in global dirty list */
468 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
469 struct mutex inmem_lock
; /* lock for inmemory pages */
470 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
471 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
474 static inline void get_extent_info(struct extent_info
*ext
,
475 struct f2fs_extent
*i_ext
)
477 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
478 ext
->blk
= le32_to_cpu(i_ext
->blk
);
479 ext
->len
= le32_to_cpu(i_ext
->len
);
482 static inline void set_raw_extent(struct extent_info
*ext
,
483 struct f2fs_extent
*i_ext
)
485 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
486 i_ext
->blk
= cpu_to_le32(ext
->blk
);
487 i_ext
->len
= cpu_to_le32(ext
->len
);
490 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
491 u32 blk
, unsigned int len
)
498 static inline bool __is_extent_same(struct extent_info
*ei1
,
499 struct extent_info
*ei2
)
501 return (ei1
->fofs
== ei2
->fofs
&& ei1
->blk
== ei2
->blk
&&
502 ei1
->len
== ei2
->len
);
505 static inline bool __is_extent_mergeable(struct extent_info
*back
,
506 struct extent_info
*front
)
508 return (back
->fofs
+ back
->len
== front
->fofs
&&
509 back
->blk
+ back
->len
== front
->blk
);
512 static inline bool __is_back_mergeable(struct extent_info
*cur
,
513 struct extent_info
*back
)
515 return __is_extent_mergeable(back
, cur
);
518 static inline bool __is_front_mergeable(struct extent_info
*cur
,
519 struct extent_info
*front
)
521 return __is_extent_mergeable(cur
, front
);
524 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
525 static inline void __try_update_largest_extent(struct inode
*inode
,
526 struct extent_tree
*et
, struct extent_node
*en
)
528 if (en
->ei
.len
> et
->largest
.len
) {
529 et
->largest
= en
->ei
;
530 f2fs_mark_inode_dirty_sync(inode
, true);
540 struct f2fs_nm_info
{
541 block_t nat_blkaddr
; /* base disk address of NAT */
542 nid_t max_nid
; /* maximum possible node ids */
543 nid_t available_nids
; /* # of available node ids */
544 nid_t next_scan_nid
; /* the next nid to be scanned */
545 unsigned int ram_thresh
; /* control the memory footprint */
546 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
547 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
549 /* NAT cache management */
550 struct radix_tree_root nat_root
;/* root of the nat entry cache */
551 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
552 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
553 struct list_head nat_entries
; /* cached nat entry list (clean) */
554 unsigned int nat_cnt
; /* the # of cached nat entries */
555 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
557 /* free node ids management */
558 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
559 struct list_head nid_list
[MAX_NID_LIST
];/* lists for free nids */
560 unsigned int nid_cnt
[MAX_NID_LIST
]; /* the number of free node id */
561 spinlock_t nid_list_lock
; /* protect nid lists ops */
562 struct mutex build_lock
; /* lock for build free nids */
565 char *nat_bitmap
; /* NAT bitmap pointer */
566 #ifdef CONFIG_F2FS_CHECK_FS
567 char *nat_bitmap_mir
; /* NAT bitmap mirror */
569 int bitmap_size
; /* bitmap size */
573 * this structure is used as one of function parameters.
574 * all the information are dedicated to a given direct node block determined
575 * by the data offset in a file.
577 struct dnode_of_data
{
578 struct inode
*inode
; /* vfs inode pointer */
579 struct page
*inode_page
; /* its inode page, NULL is possible */
580 struct page
*node_page
; /* cached direct node page */
581 nid_t nid
; /* node id of the direct node block */
582 unsigned int ofs_in_node
; /* data offset in the node page */
583 bool inode_page_locked
; /* inode page is locked or not */
584 bool node_changed
; /* is node block changed */
585 char cur_level
; /* level of hole node page */
586 char max_level
; /* level of current page located */
587 block_t data_blkaddr
; /* block address of the node block */
590 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
591 struct page
*ipage
, struct page
*npage
, nid_t nid
)
593 memset(dn
, 0, sizeof(*dn
));
595 dn
->inode_page
= ipage
;
596 dn
->node_page
= npage
;
603 * By default, there are 6 active log areas across the whole main area.
604 * When considering hot and cold data separation to reduce cleaning overhead,
605 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
607 * In the current design, you should not change the numbers intentionally.
608 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
609 * logs individually according to the underlying devices. (default: 6)
610 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
611 * data and 8 for node logs.
613 #define NR_CURSEG_DATA_TYPE (3)
614 #define NR_CURSEG_NODE_TYPE (3)
615 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
618 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
619 CURSEG_WARM_DATA
, /* data blocks */
620 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
621 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
622 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
623 CURSEG_COLD_NODE
, /* indirect node blocks */
628 struct completion wait
;
629 struct llist_node llnode
;
633 struct flush_cmd_control
{
634 struct task_struct
*f2fs_issue_flush
; /* flush thread */
635 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
636 atomic_t submit_flush
; /* # of issued flushes */
637 struct llist_head issue_list
; /* list for command issue */
638 struct llist_node
*dispatch_list
; /* list for command dispatch */
641 struct f2fs_sm_info
{
642 struct sit_info
*sit_info
; /* whole segment information */
643 struct free_segmap_info
*free_info
; /* free segment information */
644 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
645 struct curseg_info
*curseg_array
; /* active segment information */
647 block_t seg0_blkaddr
; /* block address of 0'th segment */
648 block_t main_blkaddr
; /* start block address of main area */
649 block_t ssa_blkaddr
; /* start block address of SSA area */
651 unsigned int segment_count
; /* total # of segments */
652 unsigned int main_segments
; /* # of segments in main area */
653 unsigned int reserved_segments
; /* # of reserved segments */
654 unsigned int ovp_segments
; /* # of overprovision segments */
656 /* a threshold to reclaim prefree segments */
657 unsigned int rec_prefree_segments
;
659 /* for batched trimming */
660 unsigned int trim_sections
; /* # of sections to trim */
662 struct list_head sit_entry_set
; /* sit entry set list */
664 unsigned int ipu_policy
; /* in-place-update policy */
665 unsigned int min_ipu_util
; /* in-place-update threshold */
666 unsigned int min_fsync_blocks
; /* threshold for fsync */
668 /* for flush command control */
669 struct flush_cmd_control
*fcc_info
;
671 /* for discard command control */
672 struct discard_cmd_control
*dcc_info
;
679 * COUNT_TYPE for monitoring
681 * f2fs monitors the number of several block types such as on-writeback,
682 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
684 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
698 * The below are the page types of bios used in submit_bio().
699 * The available types are:
700 * DATA User data pages. It operates as async mode.
701 * NODE Node pages. It operates as async mode.
702 * META FS metadata pages such as SIT, NAT, CP.
703 * NR_PAGE_TYPE The number of page types.
704 * META_FLUSH Make sure the previous pages are written
705 * with waiting the bio's completion
706 * ... Only can be used with META.
708 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
715 INMEM
, /* the below types are used by tracepoints only. */
722 struct f2fs_io_info
{
723 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
724 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
725 int op
; /* contains REQ_OP_ */
726 int op_flags
; /* req_flag_bits */
727 block_t new_blkaddr
; /* new block address to be written */
728 block_t old_blkaddr
; /* old block address before Cow */
729 struct page
*page
; /* page to be written */
730 struct page
*encrypted_page
; /* encrypted page */
733 #define is_read_io(rw) (rw == READ)
734 struct f2fs_bio_info
{
735 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
736 struct bio
*bio
; /* bios to merge */
737 sector_t last_block_in_bio
; /* last block number */
738 struct f2fs_io_info fio
; /* store buffered io info. */
739 struct rw_semaphore io_rwsem
; /* blocking op for bio */
742 #define FDEV(i) (sbi->devs[i])
743 #define RDEV(i) (raw_super->devs[i])
744 struct f2fs_dev_info
{
745 struct block_device
*bdev
;
746 char path
[MAX_PATH_LEN
];
747 unsigned int total_segments
;
750 #ifdef CONFIG_BLK_DEV_ZONED
751 unsigned int nr_blkz
; /* Total number of zones */
752 u8
*blkz_type
; /* Array of zones type */
757 DIR_INODE
, /* for dirty dir inode */
758 FILE_INODE
, /* for dirty regular/symlink inode */
759 DIRTY_META
, /* for all dirtied inode metadata */
763 /* for inner inode cache management */
764 struct inode_management
{
765 struct radix_tree_root ino_root
; /* ino entry array */
766 spinlock_t ino_lock
; /* for ino entry lock */
767 struct list_head ino_list
; /* inode list head */
768 unsigned long ino_num
; /* number of entries */
771 /* For s_flag in struct f2fs_sb_info */
773 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
774 SBI_IS_CLOSE
, /* specify unmounting */
775 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
776 SBI_POR_DOING
, /* recovery is doing or not */
777 SBI_NEED_SB_WRITE
, /* need to recover superblock */
778 SBI_NEED_CP
, /* need to checkpoint */
787 #ifdef CONFIG_F2FS_FS_ENCRYPTION
788 #define F2FS_KEY_DESC_PREFIX "f2fs:"
789 #define F2FS_KEY_DESC_PREFIX_SIZE 5
791 struct f2fs_sb_info
{
792 struct super_block
*sb
; /* pointer to VFS super block */
793 struct proc_dir_entry
*s_proc
; /* proc entry */
794 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
795 int valid_super_block
; /* valid super block no */
796 unsigned long s_flag
; /* flags for sbi */
798 #ifdef CONFIG_F2FS_FS_ENCRYPTION
799 u8 key_prefix
[F2FS_KEY_DESC_PREFIX_SIZE
];
803 #ifdef CONFIG_BLK_DEV_ZONED
804 unsigned int blocks_per_blkz
; /* F2FS blocks per zone */
805 unsigned int log_blocks_per_blkz
; /* log2 F2FS blocks per zone */
808 /* for node-related operations */
809 struct f2fs_nm_info
*nm_info
; /* node manager */
810 struct inode
*node_inode
; /* cache node blocks */
812 /* for segment-related operations */
813 struct f2fs_sm_info
*sm_info
; /* segment manager */
815 /* for bio operations */
816 struct f2fs_bio_info read_io
; /* for read bios */
817 struct f2fs_bio_info write_io
[NR_PAGE_TYPE
]; /* for write bios */
818 struct mutex wio_mutex
[NODE
+ 1]; /* bio ordering for NODE/DATA */
819 int write_io_size_bits
; /* Write IO size bits */
820 mempool_t
*write_io_dummy
; /* Dummy pages */
823 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
824 int cur_cp_pack
; /* remain current cp pack */
825 spinlock_t cp_lock
; /* for flag in ckpt */
826 struct inode
*meta_inode
; /* cache meta blocks */
827 struct mutex cp_mutex
; /* checkpoint procedure lock */
828 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
829 struct rw_semaphore node_write
; /* locking node writes */
830 wait_queue_head_t cp_wait
;
831 unsigned long last_time
[MAX_TIME
]; /* to store time in jiffies */
832 long interval_time
[MAX_TIME
]; /* to store thresholds */
834 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
836 /* for orphan inode, use 0'th array */
837 unsigned int max_orphans
; /* max orphan inodes */
839 /* for inode management */
840 struct list_head inode_list
[NR_INODE_TYPE
]; /* dirty inode list */
841 spinlock_t inode_lock
[NR_INODE_TYPE
]; /* for dirty inode list lock */
843 /* for extent tree cache */
844 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
845 struct rw_semaphore extent_tree_lock
; /* locking extent radix tree */
846 struct list_head extent_list
; /* lru list for shrinker */
847 spinlock_t extent_lock
; /* locking extent lru list */
848 atomic_t total_ext_tree
; /* extent tree count */
849 struct list_head zombie_list
; /* extent zombie tree list */
850 atomic_t total_zombie_tree
; /* extent zombie tree count */
851 atomic_t total_ext_node
; /* extent info count */
853 /* basic filesystem units */
854 unsigned int log_sectors_per_block
; /* log2 sectors per block */
855 unsigned int log_blocksize
; /* log2 block size */
856 unsigned int blocksize
; /* block size */
857 unsigned int root_ino_num
; /* root inode number*/
858 unsigned int node_ino_num
; /* node inode number*/
859 unsigned int meta_ino_num
; /* meta inode number*/
860 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
861 unsigned int blocks_per_seg
; /* blocks per segment */
862 unsigned int segs_per_sec
; /* segments per section */
863 unsigned int secs_per_zone
; /* sections per zone */
864 unsigned int total_sections
; /* total section count */
865 unsigned int total_node_count
; /* total node block count */
866 unsigned int total_valid_node_count
; /* valid node block count */
867 loff_t max_file_blocks
; /* max block index of file */
868 int active_logs
; /* # of active logs */
869 int dir_level
; /* directory level */
871 block_t user_block_count
; /* # of user blocks */
872 block_t total_valid_block_count
; /* # of valid blocks */
873 block_t discard_blks
; /* discard command candidats */
874 block_t last_valid_block_count
; /* for recovery */
875 u32 s_next_generation
; /* for NFS support */
877 /* # of pages, see count_type */
878 atomic_t nr_pages
[NR_COUNT_TYPE
];
879 /* # of allocated blocks */
880 struct percpu_counter alloc_valid_block_count
;
882 /* valid inode count */
883 struct percpu_counter total_valid_inode_count
;
885 struct f2fs_mount_info mount_opt
; /* mount options */
887 /* for cleaning operations */
888 struct mutex gc_mutex
; /* mutex for GC */
889 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
890 unsigned int cur_victim_sec
; /* current victim section num */
892 /* maximum # of trials to find a victim segment for SSR and GC */
893 unsigned int max_victim_search
;
896 * for stat information.
897 * one is for the LFS mode, and the other is for the SSR mode.
899 #ifdef CONFIG_F2FS_STAT_FS
900 struct f2fs_stat_info
*stat_info
; /* FS status information */
901 unsigned int segment_count
[2]; /* # of allocated segments */
902 unsigned int block_count
[2]; /* # of allocated blocks */
903 atomic_t inplace_count
; /* # of inplace update */
904 atomic64_t total_hit_ext
; /* # of lookup extent cache */
905 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
906 atomic64_t read_hit_largest
; /* # of hit largest extent node */
907 atomic64_t read_hit_cached
; /* # of hit cached extent node */
908 atomic_t inline_xattr
; /* # of inline_xattr inodes */
909 atomic_t inline_inode
; /* # of inline_data inodes */
910 atomic_t inline_dir
; /* # of inline_dentry inodes */
911 atomic_t aw_cnt
; /* # of atomic writes */
912 atomic_t max_aw_cnt
; /* max # of atomic writes */
913 int bg_gc
; /* background gc calls */
914 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
916 unsigned int last_victim
[2]; /* last victim segment # */
917 spinlock_t stat_lock
; /* lock for stat operations */
919 /* For sysfs suppport */
920 struct kobject s_kobj
;
921 struct completion s_kobj_unregister
;
923 /* For shrinker support */
924 struct list_head s_list
;
925 int s_ndevs
; /* number of devices */
926 struct f2fs_dev_info
*devs
; /* for device list */
927 struct mutex umount_mutex
;
928 unsigned int shrinker_run_no
;
930 /* For write statistics */
931 u64 sectors_written_start
;
934 /* Reference to checksum algorithm driver via cryptoapi */
935 struct crypto_shash
*s_chksum_driver
;
937 /* For fault injection */
938 #ifdef CONFIG_F2FS_FAULT_INJECTION
939 struct f2fs_fault_info fault_info
;
943 #ifdef CONFIG_F2FS_FAULT_INJECTION
944 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
946 struct f2fs_fault_info
*ffi
= &sbi
->fault_info
;
948 if (!ffi
->inject_rate
)
951 if (!IS_FAULT_SET(ffi
, type
))
954 atomic_inc(&ffi
->inject_ops
);
955 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
956 atomic_set(&ffi
->inject_ops
, 0);
957 printk("%sF2FS-fs : inject %s in %pF\n",
960 __builtin_return_address(0));
967 /* For write statistics. Suppose sector size is 512 bytes,
968 * and the return value is in kbytes. s is of struct f2fs_sb_info.
970 #define BD_PART_WRITTEN(s) \
971 (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
972 s->sectors_written_start) >> 1)
974 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
976 sbi
->last_time
[type
] = jiffies
;
979 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
981 struct timespec ts
= {sbi
->interval_time
[type
], 0};
982 unsigned long interval
= timespec_to_jiffies(&ts
);
984 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
987 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
989 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
990 struct request_queue
*q
= bdev_get_queue(bdev
);
991 struct request_list
*rl
= &q
->root_rl
;
993 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
996 return f2fs_time_over(sbi
, REQ_TIME
);
1002 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1003 unsigned int length
)
1005 SHASH_DESC_ON_STACK(shash
, sbi
->s_chksum_driver
);
1006 u32
*ctx
= (u32
*)shash_desc_ctx(shash
);
1009 shash
->tfm
= sbi
->s_chksum_driver
;
1011 *ctx
= F2FS_SUPER_MAGIC
;
1013 err
= crypto_shash_update(shash
, address
, length
);
1019 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1020 void *buf
, size_t buf_size
)
1022 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1025 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1027 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1030 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1032 return sb
->s_fs_info
;
1035 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1037 return F2FS_SB(inode
->i_sb
);
1040 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1042 return F2FS_I_SB(mapping
->host
);
1045 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1047 return F2FS_M_SB(page
->mapping
);
1050 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1052 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1055 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1057 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1060 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1062 return (struct f2fs_node
*)page_address(page
);
1065 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1067 return &((struct f2fs_node
*)page_address(page
))->i
;
1070 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1072 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1075 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1077 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1080 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1082 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1085 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1087 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1090 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1092 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1095 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1097 return sbi
->meta_inode
->i_mapping
;
1100 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1102 return sbi
->node_inode
->i_mapping
;
1105 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1107 return test_bit(type
, &sbi
->s_flag
);
1110 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1112 set_bit(type
, &sbi
->s_flag
);
1115 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1117 clear_bit(type
, &sbi
->s_flag
);
1120 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1122 return le64_to_cpu(cp
->checkpoint_ver
);
1125 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1127 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1129 return ckpt_flags
& f
;
1132 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1134 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1137 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1139 unsigned int ckpt_flags
;
1141 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1143 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1146 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1148 spin_lock(&sbi
->cp_lock
);
1149 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1150 spin_unlock(&sbi
->cp_lock
);
1153 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1155 unsigned int ckpt_flags
;
1157 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1159 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1162 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1164 spin_lock(&sbi
->cp_lock
);
1165 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1166 spin_unlock(&sbi
->cp_lock
);
1169 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1171 down_read(&sbi
->cp_rwsem
);
1174 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1176 up_read(&sbi
->cp_rwsem
);
1179 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1181 down_write(&sbi
->cp_rwsem
);
1184 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1186 up_write(&sbi
->cp_rwsem
);
1189 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1191 int reason
= CP_SYNC
;
1193 if (test_opt(sbi
, FASTBOOT
))
1194 reason
= CP_FASTBOOT
;
1195 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1200 static inline bool __remain_node_summaries(int reason
)
1202 return (reason
== CP_UMOUNT
|| reason
== CP_FASTBOOT
);
1205 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1207 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1208 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1212 * Check whether the given nid is within node id range.
1214 static inline int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
)
1216 if (unlikely(nid
< F2FS_ROOT_INO(sbi
)))
1218 if (unlikely(nid
>= NM_I(sbi
)->max_nid
))
1223 #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1226 * Check whether the inode has blocks or not
1228 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1230 if (F2FS_I(inode
)->i_xattr_nid
)
1231 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
+ 1;
1233 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
;
1236 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1238 return ofs
== XATTR_NODE_OFFSET
;
1241 static inline void f2fs_i_blocks_write(struct inode
*, blkcnt_t
, bool);
1242 static inline bool inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1243 struct inode
*inode
, blkcnt_t
*count
)
1247 #ifdef CONFIG_F2FS_FAULT_INJECTION
1248 if (time_to_inject(sbi
, FAULT_BLOCK
))
1252 * let's increase this in prior to actual block count change in order
1253 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1255 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1257 spin_lock(&sbi
->stat_lock
);
1258 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1259 if (unlikely(sbi
->total_valid_block_count
> sbi
->user_block_count
)) {
1260 diff
= sbi
->total_valid_block_count
- sbi
->user_block_count
;
1262 sbi
->total_valid_block_count
= sbi
->user_block_count
;
1264 spin_unlock(&sbi
->stat_lock
);
1265 percpu_counter_sub(&sbi
->alloc_valid_block_count
, diff
);
1269 spin_unlock(&sbi
->stat_lock
);
1271 f2fs_i_blocks_write(inode
, *count
, true);
1275 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1276 struct inode
*inode
,
1279 spin_lock(&sbi
->stat_lock
);
1280 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1281 f2fs_bug_on(sbi
, inode
->i_blocks
< count
);
1282 sbi
->total_valid_block_count
-= (block_t
)count
;
1283 spin_unlock(&sbi
->stat_lock
);
1284 f2fs_i_blocks_write(inode
, count
, false);
1287 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1289 atomic_inc(&sbi
->nr_pages
[count_type
]);
1291 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1292 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1295 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1298 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1300 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1301 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1302 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1305 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1307 atomic_dec(&sbi
->nr_pages
[count_type
]);
1310 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1312 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1313 !S_ISLNK(inode
->i_mode
))
1316 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1317 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1318 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1321 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1323 return atomic_read(&sbi
->nr_pages
[count_type
]);
1326 static inline int get_dirty_pages(struct inode
*inode
)
1328 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1331 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1333 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1334 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1335 sbi
->log_blocks_per_seg
;
1337 return segs
/ sbi
->segs_per_sec
;
1340 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1342 return sbi
->total_valid_block_count
;
1345 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1347 return sbi
->discard_blks
;
1350 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1352 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1354 /* return NAT or SIT bitmap */
1355 if (flag
== NAT_BITMAP
)
1356 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1357 else if (flag
== SIT_BITMAP
)
1358 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1363 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1365 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1368 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1370 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1373 if (__cp_payload(sbi
) > 0) {
1374 if (flag
== NAT_BITMAP
)
1375 return &ckpt
->sit_nat_version_bitmap
;
1377 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1379 offset
= (flag
== NAT_BITMAP
) ?
1380 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1381 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1385 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1387 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1389 if (sbi
->cur_cp_pack
== 2)
1390 start_addr
+= sbi
->blocks_per_seg
;
1394 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1396 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1398 if (sbi
->cur_cp_pack
== 1)
1399 start_addr
+= sbi
->blocks_per_seg
;
1403 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1405 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1408 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1410 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1413 static inline bool inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1414 struct inode
*inode
)
1416 block_t valid_block_count
;
1417 unsigned int valid_node_count
;
1419 spin_lock(&sbi
->stat_lock
);
1421 valid_block_count
= sbi
->total_valid_block_count
+ 1;
1422 if (unlikely(valid_block_count
> sbi
->user_block_count
)) {
1423 spin_unlock(&sbi
->stat_lock
);
1427 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1428 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1429 spin_unlock(&sbi
->stat_lock
);
1434 f2fs_i_blocks_write(inode
, 1, true);
1436 sbi
->total_valid_node_count
++;
1437 sbi
->total_valid_block_count
++;
1438 spin_unlock(&sbi
->stat_lock
);
1440 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1444 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1445 struct inode
*inode
)
1447 spin_lock(&sbi
->stat_lock
);
1449 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1450 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1451 f2fs_bug_on(sbi
, !inode
->i_blocks
);
1453 f2fs_i_blocks_write(inode
, 1, false);
1454 sbi
->total_valid_node_count
--;
1455 sbi
->total_valid_block_count
--;
1457 spin_unlock(&sbi
->stat_lock
);
1460 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1462 return sbi
->total_valid_node_count
;
1465 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1467 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1470 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1472 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1475 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1477 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1480 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1481 pgoff_t index
, bool for_write
)
1483 #ifdef CONFIG_F2FS_FAULT_INJECTION
1484 struct page
*page
= find_lock_page(mapping
, index
);
1489 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
))
1493 return grab_cache_page(mapping
, index
);
1494 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1497 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1499 char *src_kaddr
= kmap(src
);
1500 char *dst_kaddr
= kmap(dst
);
1502 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1507 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1513 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1519 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1522 f2fs_put_page(dn
->node_page
, 1);
1523 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1524 f2fs_put_page(dn
->inode_page
, 0);
1525 dn
->node_page
= NULL
;
1526 dn
->inode_page
= NULL
;
1529 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
1532 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
1535 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
1540 entry
= kmem_cache_alloc(cachep
, flags
);
1542 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
1546 static inline struct bio
*f2fs_bio_alloc(int npages
)
1550 /* No failure on bio allocation */
1551 bio
= bio_alloc(GFP_NOIO
, npages
);
1553 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
1557 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
1558 unsigned long index
, void *item
)
1560 while (radix_tree_insert(root
, index
, item
))
1564 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1566 static inline bool IS_INODE(struct page
*page
)
1568 struct f2fs_node
*p
= F2FS_NODE(page
);
1570 return RAW_IS_INODE(p
);
1573 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
1575 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
1578 static inline block_t
datablock_addr(struct page
*node_page
,
1579 unsigned int offset
)
1581 struct f2fs_node
*raw_node
;
1584 raw_node
= F2FS_NODE(node_page
);
1585 addr_array
= blkaddr_in_node(raw_node
);
1586 return le32_to_cpu(addr_array
[offset
]);
1589 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
1594 mask
= 1 << (7 - (nr
& 0x07));
1595 return mask
& *addr
;
1598 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
1603 mask
= 1 << (7 - (nr
& 0x07));
1607 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
1612 mask
= 1 << (7 - (nr
& 0x07));
1616 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
1622 mask
= 1 << (7 - (nr
& 0x07));
1628 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
1634 mask
= 1 << (7 - (nr
& 0x07));
1640 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
1645 mask
= 1 << (7 - (nr
& 0x07));
1649 /* used for f2fs_inode_info->flags */
1651 FI_NEW_INODE
, /* indicate newly allocated inode */
1652 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
1653 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
1654 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
1655 FI_INC_LINK
, /* need to increment i_nlink */
1656 FI_ACL_MODE
, /* indicate acl mode */
1657 FI_NO_ALLOC
, /* should not allocate any blocks */
1658 FI_FREE_NID
, /* free allocated nide */
1659 FI_NO_EXTENT
, /* not to use the extent cache */
1660 FI_INLINE_XATTR
, /* used for inline xattr */
1661 FI_INLINE_DATA
, /* used for inline data*/
1662 FI_INLINE_DENTRY
, /* used for inline dentry */
1663 FI_APPEND_WRITE
, /* inode has appended data */
1664 FI_UPDATE_WRITE
, /* inode has in-place-update data */
1665 FI_NEED_IPU
, /* used for ipu per file */
1666 FI_ATOMIC_FILE
, /* indicate atomic file */
1667 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
1668 FI_VOLATILE_FILE
, /* indicate volatile file */
1669 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
1670 FI_DROP_CACHE
, /* drop dirty page cache */
1671 FI_DATA_EXIST
, /* indicate data exists */
1672 FI_INLINE_DOTS
, /* indicate inline dot dentries */
1673 FI_DO_DEFRAG
, /* indicate defragment is running */
1674 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
1675 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
1678 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
1682 case FI_INLINE_XATTR
:
1683 case FI_INLINE_DATA
:
1684 case FI_INLINE_DENTRY
:
1688 case FI_INLINE_DOTS
:
1689 f2fs_mark_inode_dirty_sync(inode
, true);
1693 static inline void set_inode_flag(struct inode
*inode
, int flag
)
1695 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
1696 set_bit(flag
, &F2FS_I(inode
)->flags
);
1697 __mark_inode_dirty_flag(inode
, flag
, true);
1700 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
1702 return test_bit(flag
, &F2FS_I(inode
)->flags
);
1705 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
1707 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
1708 clear_bit(flag
, &F2FS_I(inode
)->flags
);
1709 __mark_inode_dirty_flag(inode
, flag
, false);
1712 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
1714 F2FS_I(inode
)->i_acl_mode
= mode
;
1715 set_inode_flag(inode
, FI_ACL_MODE
);
1716 f2fs_mark_inode_dirty_sync(inode
, false);
1719 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
1725 f2fs_mark_inode_dirty_sync(inode
, true);
1728 static inline void f2fs_i_blocks_write(struct inode
*inode
,
1729 blkcnt_t diff
, bool add
)
1731 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1732 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1734 inode
->i_blocks
= add
? inode
->i_blocks
+ diff
:
1735 inode
->i_blocks
- diff
;
1736 f2fs_mark_inode_dirty_sync(inode
, true);
1737 if (clean
|| recover
)
1738 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1741 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
1743 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1744 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1746 if (i_size_read(inode
) == i_size
)
1749 i_size_write(inode
, i_size
);
1750 f2fs_mark_inode_dirty_sync(inode
, true);
1751 if (clean
|| recover
)
1752 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1755 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
1757 F2FS_I(inode
)->i_current_depth
= depth
;
1758 f2fs_mark_inode_dirty_sync(inode
, true);
1761 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
1763 F2FS_I(inode
)->i_xattr_nid
= xnid
;
1764 f2fs_mark_inode_dirty_sync(inode
, true);
1767 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
1769 F2FS_I(inode
)->i_pino
= pino
;
1770 f2fs_mark_inode_dirty_sync(inode
, true);
1773 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
1775 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
1777 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
1778 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
1779 if (ri
->i_inline
& F2FS_INLINE_DATA
)
1780 set_bit(FI_INLINE_DATA
, &fi
->flags
);
1781 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
1782 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
1783 if (ri
->i_inline
& F2FS_DATA_EXIST
)
1784 set_bit(FI_DATA_EXIST
, &fi
->flags
);
1785 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
1786 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
1789 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
1793 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
1794 ri
->i_inline
|= F2FS_INLINE_XATTR
;
1795 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
1796 ri
->i_inline
|= F2FS_INLINE_DATA
;
1797 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
1798 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
1799 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
1800 ri
->i_inline
|= F2FS_DATA_EXIST
;
1801 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
1802 ri
->i_inline
|= F2FS_INLINE_DOTS
;
1805 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
1807 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
1810 static inline unsigned int addrs_per_inode(struct inode
*inode
)
1812 if (f2fs_has_inline_xattr(inode
))
1813 return DEF_ADDRS_PER_INODE
- F2FS_INLINE_XATTR_ADDRS
;
1814 return DEF_ADDRS_PER_INODE
;
1817 static inline void *inline_xattr_addr(struct page
*page
)
1819 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1821 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
1822 F2FS_INLINE_XATTR_ADDRS
]);
1825 static inline int inline_xattr_size(struct inode
*inode
)
1827 if (f2fs_has_inline_xattr(inode
))
1828 return F2FS_INLINE_XATTR_ADDRS
<< 2;
1833 static inline int f2fs_has_inline_data(struct inode
*inode
)
1835 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
1838 static inline void f2fs_clear_inline_inode(struct inode
*inode
)
1840 clear_inode_flag(inode
, FI_INLINE_DATA
);
1841 clear_inode_flag(inode
, FI_DATA_EXIST
);
1844 static inline int f2fs_exist_data(struct inode
*inode
)
1846 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
1849 static inline int f2fs_has_inline_dots(struct inode
*inode
)
1851 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
1854 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
1856 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
1859 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
1861 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
1864 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
1866 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
1869 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
1871 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
1874 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
1876 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
1879 static inline void *inline_data_addr(struct page
*page
)
1881 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1883 return (void *)&(ri
->i_addr
[1]);
1886 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
1888 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
1891 static inline void f2fs_dentry_kunmap(struct inode
*dir
, struct page
*page
)
1893 if (!f2fs_has_inline_dentry(dir
))
1897 static inline int is_file(struct inode
*inode
, int type
)
1899 return F2FS_I(inode
)->i_advise
& type
;
1902 static inline void set_file(struct inode
*inode
, int type
)
1904 F2FS_I(inode
)->i_advise
|= type
;
1905 f2fs_mark_inode_dirty_sync(inode
, true);
1908 static inline void clear_file(struct inode
*inode
, int type
)
1910 F2FS_I(inode
)->i_advise
&= ~type
;
1911 f2fs_mark_inode_dirty_sync(inode
, true);
1914 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
1917 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
1920 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
1921 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
1922 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
1925 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
1926 file_keep_isize(inode
) ||
1927 i_size_read(inode
) & PAGE_MASK
)
1929 return F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
1932 static inline int f2fs_readonly(struct super_block
*sb
)
1934 return sb
->s_flags
& MS_RDONLY
;
1937 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
1939 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
1942 static inline bool is_dot_dotdot(const struct qstr
*str
)
1944 if (str
->len
== 1 && str
->name
[0] == '.')
1947 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
1953 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
1955 if (!test_opt(F2FS_I_SB(inode
), EXTENT_CACHE
) ||
1956 is_inode_flag_set(inode
, FI_NO_EXTENT
))
1959 return S_ISREG(inode
->i_mode
);
1962 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
1963 size_t size
, gfp_t flags
)
1965 #ifdef CONFIG_F2FS_FAULT_INJECTION
1966 if (time_to_inject(sbi
, FAULT_KMALLOC
))
1969 return kmalloc(size
, flags
);
1972 static inline void *f2fs_kvmalloc(size_t size
, gfp_t flags
)
1976 ret
= kmalloc(size
, flags
| __GFP_NOWARN
);
1978 ret
= __vmalloc(size
, flags
, PAGE_KERNEL
);
1982 static inline void *f2fs_kvzalloc(size_t size
, gfp_t flags
)
1986 ret
= kzalloc(size
, flags
| __GFP_NOWARN
);
1988 ret
= __vmalloc(size
, flags
| __GFP_ZERO
, PAGE_KERNEL
);
1992 #define get_inode_mode(i) \
1993 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
1994 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1996 /* get offset of first page in next direct node */
1997 #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
1998 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
1999 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
2000 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
2005 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2006 void truncate_data_blocks(struct dnode_of_data
*dn
);
2007 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2008 int f2fs_truncate(struct inode
*inode
);
2009 int f2fs_getattr(struct vfsmount
*mnt
, struct dentry
*dentry
,
2010 struct kstat
*stat
);
2011 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2012 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2013 int truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2014 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2015 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2020 void f2fs_set_inode_flags(struct inode
*inode
);
2021 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2022 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2023 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2024 int update_inode(struct inode
*inode
, struct page
*node_page
);
2025 int update_inode_page(struct inode
*inode
);
2026 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2027 void f2fs_evict_inode(struct inode
*inode
);
2028 void handle_failed_inode(struct inode
*inode
);
2033 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2038 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2039 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2040 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2041 f2fs_hash_t namehash
, int *max_slots
,
2042 struct f2fs_dentry_ptr
*d
);
2043 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2044 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2045 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2046 struct f2fs_dentry_ptr
*d
);
2047 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2048 const struct qstr
*new_name
,
2049 const struct qstr
*orig_name
, struct page
*dpage
);
2050 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2051 unsigned int current_depth
);
2052 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2053 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2054 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2055 struct fscrypt_name
*fname
, struct page
**res_page
);
2056 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2057 const struct qstr
*child
, struct page
**res_page
);
2058 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2059 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2060 struct page
**page
);
2061 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2062 struct page
*page
, struct inode
*inode
);
2063 int update_dent_inode(struct inode
*inode
, struct inode
*to
,
2064 const struct qstr
*name
);
2065 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2066 const struct qstr
*name
, f2fs_hash_t name_hash
,
2067 unsigned int bit_pos
);
2068 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2069 const struct qstr
*orig_name
,
2070 struct inode
*inode
, nid_t ino
, umode_t mode
);
2071 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2072 struct inode
*inode
, nid_t ino
, umode_t mode
);
2073 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2074 struct inode
*inode
, nid_t ino
, umode_t mode
);
2075 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2076 struct inode
*dir
, struct inode
*inode
);
2077 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2078 bool f2fs_empty_dir(struct inode
*dir
);
2080 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2082 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2083 inode
, inode
->i_ino
, inode
->i_mode
);
2089 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2090 void f2fs_inode_synced(struct inode
*inode
);
2091 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2092 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2093 extern __printf(3, 4)
2094 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2095 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2100 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
);
2105 struct dnode_of_data
;
2108 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2109 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2110 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2111 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2112 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2113 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2114 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2115 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2116 int truncate_xattr_node(struct inode
*inode
, struct page
*page
);
2117 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2118 int remove_inode_page(struct inode
*inode
);
2119 struct page
*new_inode_page(struct inode
*inode
);
2120 struct page
*new_node_page(struct dnode_of_data
*dn
,
2121 unsigned int ofs
, struct page
*ipage
);
2122 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2123 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2124 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2125 void move_node_page(struct page
*node_page
, int gc_type
);
2126 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2127 struct writeback_control
*wbc
, bool atomic
);
2128 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
);
2129 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
);
2130 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2131 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2132 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2133 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2134 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2135 void recover_xattr_data(struct inode
*inode
, struct page
*page
,
2137 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2138 int restore_node_summary(struct f2fs_sb_info
*sbi
,
2139 unsigned int segno
, struct f2fs_summary_block
*sum
);
2140 void flush_nat_entries(struct f2fs_sb_info
*sbi
);
2141 int build_node_manager(struct f2fs_sb_info
*sbi
);
2142 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2143 int __init
create_node_manager_caches(void);
2144 void destroy_node_manager_caches(void);
2149 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2150 void drop_inmem_pages(struct inode
*inode
);
2151 int commit_inmem_pages(struct inode
*inode
);
2152 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2153 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2154 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
);
2155 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2156 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2157 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2158 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2159 void refresh_sit_entry(struct f2fs_sb_info
*sbi
, block_t old
, block_t
new);
2160 void f2fs_wait_discard_bio(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2161 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2162 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2163 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2164 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2165 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2166 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2167 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2168 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2169 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2170 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2171 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2172 void rewrite_data_page(struct f2fs_io_info
*fio
);
2173 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2174 block_t old_blkaddr
, block_t new_blkaddr
,
2175 bool recover_curseg
, bool recover_newaddr
);
2176 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2177 block_t old_addr
, block_t new_addr
,
2178 unsigned char version
, bool recover_curseg
,
2179 bool recover_newaddr
);
2180 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2181 block_t old_blkaddr
, block_t
*new_blkaddr
,
2182 struct f2fs_summary
*sum
, int type
);
2183 void f2fs_wait_on_page_writeback(struct page
*page
,
2184 enum page_type type
, bool ordered
);
2185 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info
*sbi
,
2187 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2188 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2189 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2190 unsigned int val
, int alloc
);
2191 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2192 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2193 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2194 int __init
create_segment_manager_caches(void);
2195 void destroy_segment_manager_caches(void);
2200 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2201 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2202 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2203 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2204 bool is_valid_blkaddr(struct f2fs_sb_info
*sbi
, block_t blkaddr
, int type
);
2205 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2206 int type
, bool sync
);
2207 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2208 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2210 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2211 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2212 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2213 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2214 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2215 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2216 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2217 void add_orphan_inode(struct inode
*inode
);
2218 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2219 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2220 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2221 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2222 void remove_dirty_inode(struct inode
*inode
);
2223 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2224 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2225 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2226 int __init
create_checkpoint_caches(void);
2227 void destroy_checkpoint_caches(void);
2232 void f2fs_submit_merged_bio(struct f2fs_sb_info
*sbi
, enum page_type type
,
2234 void f2fs_submit_merged_bio_cond(struct f2fs_sb_info
*sbi
,
2235 struct inode
*inode
, struct page
*page
,
2236 nid_t ino
, enum page_type type
, int rw
);
2237 void f2fs_flush_merged_bios(struct f2fs_sb_info
*sbi
);
2238 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2239 int f2fs_submit_page_mbio(struct f2fs_io_info
*fio
);
2240 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2241 block_t blk_addr
, struct bio
*bio
);
2242 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2243 void set_data_blkaddr(struct dnode_of_data
*dn
);
2244 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2245 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2246 int reserve_new_block(struct dnode_of_data
*dn
);
2247 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2248 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2249 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2250 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2251 int op_flags
, bool for_write
);
2252 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2253 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2255 struct page
*get_new_data_page(struct inode
*inode
,
2256 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2257 int do_write_data_page(struct f2fs_io_info
*fio
);
2258 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2259 int create
, int flag
);
2260 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2261 u64 start
, u64 len
);
2262 void f2fs_set_page_dirty_nobuffers(struct page
*page
);
2263 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2264 unsigned int length
);
2265 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2266 #ifdef CONFIG_MIGRATION
2267 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2268 struct page
*page
, enum migrate_mode mode
);
2274 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2275 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2276 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2277 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
);
2278 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2283 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2284 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2289 #ifdef CONFIG_F2FS_STAT_FS
2290 struct f2fs_stat_info
{
2291 struct list_head stat_list
;
2292 struct f2fs_sb_info
*sbi
;
2293 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2294 int main_area_segs
, main_area_sections
, main_area_zones
;
2295 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2296 unsigned long long hit_total
, total_ext
;
2297 int ext_tree
, zombie_tree
, ext_node
;
2298 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_data
, ndirty_imeta
;
2300 unsigned int ndirty_dirs
, ndirty_files
, ndirty_all
;
2301 int nats
, dirty_nats
, sits
, dirty_sits
, free_nids
, alloc_nids
;
2302 int total_count
, utilization
;
2303 int bg_gc
, nr_wb_cp_data
, nr_wb_data
, nr_flush
, nr_discard
;
2304 int inline_xattr
, inline_inode
, inline_dir
, orphans
;
2305 int aw_cnt
, max_aw_cnt
;
2306 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2307 unsigned int bimodal
, avg_vblocks
;
2308 int util_free
, util_valid
, util_invalid
;
2309 int rsvd_segs
, overp_segs
;
2310 int dirty_count
, node_pages
, meta_pages
;
2311 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2312 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2313 int bg_node_segs
, bg_data_segs
;
2314 int tot_blks
, data_blks
, node_blks
;
2315 int bg_data_blks
, bg_node_blks
;
2316 int curseg
[NR_CURSEG_TYPE
];
2317 int cursec
[NR_CURSEG_TYPE
];
2318 int curzone
[NR_CURSEG_TYPE
];
2320 unsigned int segment_count
[2];
2321 unsigned int block_count
[2];
2322 unsigned int inplace_count
;
2323 unsigned long long base_mem
, cache_mem
, page_mem
;
2326 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
2328 return (struct f2fs_stat_info
*)sbi
->stat_info
;
2331 #define stat_inc_cp_count(si) ((si)->cp_count++)
2332 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2333 #define stat_inc_call_count(si) ((si)->call_count++)
2334 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2335 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2336 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2337 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2338 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2339 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2340 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2341 #define stat_inc_inline_xattr(inode) \
2343 if (f2fs_has_inline_xattr(inode)) \
2344 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2346 #define stat_dec_inline_xattr(inode) \
2348 if (f2fs_has_inline_xattr(inode)) \
2349 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2351 #define stat_inc_inline_inode(inode) \
2353 if (f2fs_has_inline_data(inode)) \
2354 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2356 #define stat_dec_inline_inode(inode) \
2358 if (f2fs_has_inline_data(inode)) \
2359 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2361 #define stat_inc_inline_dir(inode) \
2363 if (f2fs_has_inline_dentry(inode)) \
2364 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2366 #define stat_dec_inline_dir(inode) \
2368 if (f2fs_has_inline_dentry(inode)) \
2369 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2371 #define stat_inc_seg_type(sbi, curseg) \
2372 ((sbi)->segment_count[(curseg)->alloc_type]++)
2373 #define stat_inc_block_count(sbi, curseg) \
2374 ((sbi)->block_count[(curseg)->alloc_type]++)
2375 #define stat_inc_inplace_blocks(sbi) \
2376 (atomic_inc(&(sbi)->inplace_count))
2377 #define stat_inc_atomic_write(inode) \
2378 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2379 #define stat_dec_atomic_write(inode) \
2380 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2381 #define stat_update_max_atomic_write(inode) \
2383 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2384 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2386 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2388 #define stat_inc_seg_count(sbi, type, gc_type) \
2390 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2392 if (type == SUM_TYPE_DATA) { \
2394 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2397 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2401 #define stat_inc_tot_blk_count(si, blks) \
2402 (si->tot_blks += (blks))
2404 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2406 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2407 stat_inc_tot_blk_count(si, blks); \
2408 si->data_blks += (blks); \
2409 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
2412 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2414 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2415 stat_inc_tot_blk_count(si, blks); \
2416 si->node_blks += (blks); \
2417 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
2420 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
2421 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
2422 int __init
f2fs_create_root_stats(void);
2423 void f2fs_destroy_root_stats(void);
2425 #define stat_inc_cp_count(si)
2426 #define stat_inc_bg_cp_count(si)
2427 #define stat_inc_call_count(si)
2428 #define stat_inc_bggc_count(si)
2429 #define stat_inc_dirty_inode(sbi, type)
2430 #define stat_dec_dirty_inode(sbi, type)
2431 #define stat_inc_total_hit(sb)
2432 #define stat_inc_rbtree_node_hit(sb)
2433 #define stat_inc_largest_node_hit(sbi)
2434 #define stat_inc_cached_node_hit(sbi)
2435 #define stat_inc_inline_xattr(inode)
2436 #define stat_dec_inline_xattr(inode)
2437 #define stat_inc_inline_inode(inode)
2438 #define stat_dec_inline_inode(inode)
2439 #define stat_inc_inline_dir(inode)
2440 #define stat_dec_inline_dir(inode)
2441 #define stat_inc_atomic_write(inode)
2442 #define stat_dec_atomic_write(inode)
2443 #define stat_update_max_atomic_write(inode)
2444 #define stat_inc_seg_type(sbi, curseg)
2445 #define stat_inc_block_count(sbi, curseg)
2446 #define stat_inc_inplace_blocks(sbi)
2447 #define stat_inc_seg_count(sbi, type, gc_type)
2448 #define stat_inc_tot_blk_count(si, blks)
2449 #define stat_inc_data_blk_count(sbi, blks, gc_type)
2450 #define stat_inc_node_blk_count(sbi, blks, gc_type)
2452 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
2453 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
2454 static inline int __init
f2fs_create_root_stats(void) { return 0; }
2455 static inline void f2fs_destroy_root_stats(void) { }
2458 extern const struct file_operations f2fs_dir_operations
;
2459 extern const struct file_operations f2fs_file_operations
;
2460 extern const struct inode_operations f2fs_file_inode_operations
;
2461 extern const struct address_space_operations f2fs_dblock_aops
;
2462 extern const struct address_space_operations f2fs_node_aops
;
2463 extern const struct address_space_operations f2fs_meta_aops
;
2464 extern const struct inode_operations f2fs_dir_inode_operations
;
2465 extern const struct inode_operations f2fs_symlink_inode_operations
;
2466 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
2467 extern const struct inode_operations f2fs_special_inode_operations
;
2468 extern struct kmem_cache
*inode_entry_slab
;
2473 bool f2fs_may_inline_data(struct inode
*inode
);
2474 bool f2fs_may_inline_dentry(struct inode
*inode
);
2475 void read_inline_data(struct page
*page
, struct page
*ipage
);
2476 bool truncate_inline_inode(struct page
*ipage
, u64 from
);
2477 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
2478 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
2479 int f2fs_convert_inline_inode(struct inode
*inode
);
2480 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
2481 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
2482 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
2483 struct fscrypt_name
*fname
, struct page
**res_page
);
2484 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
2485 struct page
*ipage
);
2486 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
2487 const struct qstr
*orig_name
,
2488 struct inode
*inode
, nid_t ino
, umode_t mode
);
2489 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2490 struct inode
*dir
, struct inode
*inode
);
2491 bool f2fs_empty_inline_dir(struct inode
*dir
);
2492 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
2493 struct fscrypt_str
*fstr
);
2494 int f2fs_inline_data_fiemap(struct inode
*inode
,
2495 struct fiemap_extent_info
*fieinfo
,
2496 __u64 start
, __u64 len
);
2501 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
2502 struct shrink_control
*sc
);
2503 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
2504 struct shrink_control
*sc
);
2505 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
2506 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
2511 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2512 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
2513 void f2fs_drop_extent_tree(struct inode
*inode
);
2514 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
2515 void f2fs_destroy_extent_tree(struct inode
*inode
);
2516 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
2517 struct extent_info
*ei
);
2518 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
2519 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
2520 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
2521 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
2522 int __init
create_extent_cache(void);
2523 void destroy_extent_cache(void);
2528 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
2530 return file_is_encrypt(inode
);
2533 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
2535 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2536 file_set_encrypt(inode
);
2540 static inline bool f2fs_bio_encrypted(struct bio
*bio
)
2542 return bio
->bi_private
!= NULL
;
2545 static inline int f2fs_sb_has_crypto(struct super_block
*sb
)
2547 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_ENCRYPT
);
2550 static inline int f2fs_sb_mounted_blkzoned(struct super_block
*sb
)
2552 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_BLKZONED
);
2555 #ifdef CONFIG_BLK_DEV_ZONED
2556 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
2557 struct block_device
*bdev
, block_t blkaddr
)
2559 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
2562 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
2563 if (FDEV(i
).bdev
== bdev
)
2564 return FDEV(i
).blkz_type
[zno
];
2569 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
2571 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
2573 return blk_queue_discard(q
) || f2fs_sb_mounted_blkzoned(sbi
->sb
);
2576 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
2578 clear_opt(sbi
, ADAPTIVE
);
2579 clear_opt(sbi
, LFS
);
2582 case F2FS_MOUNT_ADAPTIVE
:
2583 set_opt(sbi
, ADAPTIVE
);
2585 case F2FS_MOUNT_LFS
:
2591 static inline bool f2fs_may_encrypt(struct inode
*inode
)
2593 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2594 umode_t mode
= inode
->i_mode
;
2596 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));
2602 #ifndef CONFIG_F2FS_FS_ENCRYPTION
2603 #define fscrypt_set_d_op(i)
2604 #define fscrypt_get_ctx fscrypt_notsupp_get_ctx
2605 #define fscrypt_release_ctx fscrypt_notsupp_release_ctx
2606 #define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
2607 #define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
2608 #define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
2609 #define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
2610 #define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
2611 #define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
2612 #define fscrypt_ioctl_set_policy fscrypt_notsupp_ioctl_set_policy
2613 #define fscrypt_ioctl_get_policy fscrypt_notsupp_ioctl_get_policy
2614 #define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
2615 #define fscrypt_inherit_context fscrypt_notsupp_inherit_context
2616 #define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
2617 #define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
2618 #define fscrypt_setup_filename fscrypt_notsupp_setup_filename
2619 #define fscrypt_free_filename fscrypt_notsupp_free_filename
2620 #define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
2621 #define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
2622 #define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
2623 #define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
2624 #define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk