4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 #include <linux/types.h>
15 #include <linux/page-flags.h>
16 #include <linux/buffer_head.h>
17 #include <linux/slab.h>
18 #include <linux/crc32.h>
19 #include <linux/magic.h>
20 #include <linux/kobject.h>
21 #include <linux/sched.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #ifdef CONFIG_F2FS_FS_ENCRYPTION
26 #include <linux/fscrypt_supp.h>
28 #include <linux/fscrypt_notsupp.h>
30 #include <crypto/hash.h>
32 #ifdef CONFIG_F2FS_CHECK_FS
33 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
35 #define f2fs_bug_on(sbi, condition) \
37 if (unlikely(condition)) { \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
44 #ifdef CONFIG_F2FS_FAULT_INJECTION
58 struct f2fs_fault_info
{
60 unsigned int inject_rate
;
61 unsigned int inject_type
;
64 extern char *fault_name
[FAULT_MAX
];
65 #define IS_FAULT_SET(fi, type) (fi->inject_type & (1 << (type)))
71 #define F2FS_MOUNT_BG_GC 0x00000001
72 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
73 #define F2FS_MOUNT_DISCARD 0x00000004
74 #define F2FS_MOUNT_NOHEAP 0x00000008
75 #define F2FS_MOUNT_XATTR_USER 0x00000010
76 #define F2FS_MOUNT_POSIX_ACL 0x00000020
77 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
78 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
79 #define F2FS_MOUNT_INLINE_DATA 0x00000100
80 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
81 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
82 #define F2FS_MOUNT_NOBARRIER 0x00000800
83 #define F2FS_MOUNT_FASTBOOT 0x00001000
84 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
85 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
86 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
87 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
88 #define F2FS_MOUNT_ADAPTIVE 0x00020000
89 #define F2FS_MOUNT_LFS 0x00040000
91 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
92 #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
93 #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
95 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
96 typecheck(unsigned long long, b) && \
97 ((long long)((a) - (b)) > 0))
99 typedef u32 block_t
; /*
100 * should not change u32, since it is the on-disk block
101 * address format, __le32.
105 struct f2fs_mount_info
{
109 #define F2FS_FEATURE_ENCRYPT 0x0001
110 #define F2FS_FEATURE_BLKZONED 0x0002
112 #define F2FS_HAS_FEATURE(sb, mask) \
113 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
114 #define F2FS_SET_FEATURE(sb, mask) \
115 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
116 #define F2FS_CLEAR_FEATURE(sb, mask) \
117 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
120 * For checkpoint manager
135 #define DEF_BATCHED_TRIM_SECTIONS 2048
136 #define BATCHED_TRIM_SEGMENTS(sbi) \
137 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
138 #define BATCHED_TRIM_BLOCKS(sbi) \
139 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
140 #define MAX_DISCARD_BLOCKS(sbi) \
141 ((1 << (sbi)->log_blocks_per_seg) * (sbi)->segs_per_sec)
142 #define DISCARD_ISSUE_RATE 8
143 #define DEF_CP_INTERVAL 60 /* 60 secs */
144 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
155 * For CP/NAT/SIT/SSA readahead
165 /* for the list of ino */
167 ORPHAN_INO
, /* for orphan ino list */
168 APPEND_INO
, /* for append ino list */
169 UPDATE_INO
, /* for update ino list */
170 MAX_INO_ENTRY
, /* max. list */
174 struct list_head list
; /* list head */
175 nid_t ino
; /* inode number */
178 /* for the list of inodes to be GCed */
180 struct list_head list
; /* list head */
181 struct inode
*inode
; /* vfs inode pointer */
184 /* for the list of blockaddresses to be discarded */
185 struct discard_entry
{
186 struct list_head list
; /* list head */
187 block_t blkaddr
; /* block address to be discarded */
188 int len
; /* # of consecutive blocks of the discard */
198 struct list_head list
; /* command list */
199 struct completion wait
; /* compleation */
200 block_t lstart
; /* logical start address */
201 block_t len
; /* length */
202 struct bio
*bio
; /* bio */
203 int state
; /* state */
206 struct discard_cmd_control
{
207 struct task_struct
*f2fs_issue_discard
; /* discard thread */
208 struct list_head discard_entry_list
; /* 4KB discard entry list */
209 int nr_discards
; /* # of discards in the list */
210 struct list_head discard_cmd_list
; /* discard cmd list */
211 wait_queue_head_t discard_wait_queue
; /* waiting queue for wake-up */
212 struct mutex cmd_lock
;
213 int max_discards
; /* max. discards to be issued */
214 atomic_t submit_discard
; /* # of issued discard */
217 /* for the list of fsync inodes, used only during recovery */
218 struct fsync_inode_entry
{
219 struct list_head list
; /* list head */
220 struct inode
*inode
; /* vfs inode pointer */
221 block_t blkaddr
; /* block address locating the last fsync */
222 block_t last_dentry
; /* block address locating the last dentry */
225 #define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
226 #define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
228 #define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
229 #define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
230 #define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
231 #define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
233 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
234 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
236 static inline int update_nats_in_cursum(struct f2fs_journal
*journal
, int i
)
238 int before
= nats_in_cursum(journal
);
240 journal
->n_nats
= cpu_to_le16(before
+ i
);
244 static inline int update_sits_in_cursum(struct f2fs_journal
*journal
, int i
)
246 int before
= sits_in_cursum(journal
);
248 journal
->n_sits
= cpu_to_le16(before
+ i
);
252 static inline bool __has_cursum_space(struct f2fs_journal
*journal
,
255 if (type
== NAT_JOURNAL
)
256 return size
<= MAX_NAT_JENTRIES(journal
);
257 return size
<= MAX_SIT_JENTRIES(journal
);
263 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
264 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
265 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
267 #define F2FS_IOCTL_MAGIC 0xf5
268 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
269 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
270 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
271 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
272 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
273 #define F2FS_IOC_GARBAGE_COLLECT _IO(F2FS_IOCTL_MAGIC, 6)
274 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
275 #define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
276 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
277 struct f2fs_move_range)
279 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
280 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
281 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
284 * should be same as XFS_IOC_GOINGDOWN.
285 * Flags for going down operation used by FS_IOC_GOINGDOWN
287 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
288 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
289 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
290 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
291 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
293 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
295 * ioctl commands in 32 bit emulation
297 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
298 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
299 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
302 struct f2fs_defragment
{
307 struct f2fs_move_range
{
308 u32 dst_fd
; /* destination fd */
309 u64 pos_in
; /* start position in src_fd */
310 u64 pos_out
; /* start position in dst_fd */
311 u64 len
; /* size to move */
315 * For INODE and NODE manager
317 /* for directory operations */
318 struct f2fs_dentry_ptr
{
321 struct f2fs_dir_entry
*dentry
;
322 __u8 (*filename
)[F2FS_SLOT_LEN
];
326 static inline void make_dentry_ptr(struct inode
*inode
,
327 struct f2fs_dentry_ptr
*d
, void *src
, int type
)
332 struct f2fs_dentry_block
*t
= (struct f2fs_dentry_block
*)src
;
334 d
->max
= NR_DENTRY_IN_BLOCK
;
335 d
->bitmap
= &t
->dentry_bitmap
;
336 d
->dentry
= t
->dentry
;
337 d
->filename
= t
->filename
;
339 struct f2fs_inline_dentry
*t
= (struct f2fs_inline_dentry
*)src
;
341 d
->max
= NR_INLINE_DENTRY
;
342 d
->bitmap
= &t
->dentry_bitmap
;
343 d
->dentry
= t
->dentry
;
344 d
->filename
= t
->filename
;
349 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
350 * as its node offset to distinguish from index node blocks.
351 * But some bits are used to mark the node block.
353 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
356 ALLOC_NODE
, /* allocate a new node page if needed */
357 LOOKUP_NODE
, /* look up a node without readahead */
359 * look up a node with readahead called
364 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
366 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
368 /* vector size for gang look-up from extent cache that consists of radix tree */
369 #define EXT_TREE_VEC_SIZE 64
371 /* for in-memory extent cache entry */
372 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
374 /* number of extent info in extent cache we try to shrink */
375 #define EXTENT_CACHE_SHRINK_NUMBER 128
378 unsigned int fofs
; /* start offset in a file */
379 u32 blk
; /* start block address of the extent */
380 unsigned int len
; /* length of the extent */
384 struct rb_node rb_node
; /* rb node located in rb-tree */
385 struct list_head list
; /* node in global extent list of sbi */
386 struct extent_info ei
; /* extent info */
387 struct extent_tree
*et
; /* extent tree pointer */
391 nid_t ino
; /* inode number */
392 struct rb_root root
; /* root of extent info rb-tree */
393 struct extent_node
*cached_en
; /* recently accessed extent node */
394 struct extent_info largest
; /* largested extent info */
395 struct list_head list
; /* to be used by sbi->zombie_list */
396 rwlock_t lock
; /* protect extent info rb-tree */
397 atomic_t node_cnt
; /* # of extent node in rb-tree*/
401 * This structure is taken from ext4_map_blocks.
403 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
405 #define F2FS_MAP_NEW (1 << BH_New)
406 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
407 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
408 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
411 struct f2fs_map_blocks
{
415 unsigned int m_flags
;
416 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
419 /* for flag in get_data_block */
420 #define F2FS_GET_BLOCK_READ 0
421 #define F2FS_GET_BLOCK_DIO 1
422 #define F2FS_GET_BLOCK_FIEMAP 2
423 #define F2FS_GET_BLOCK_BMAP 3
424 #define F2FS_GET_BLOCK_PRE_DIO 4
425 #define F2FS_GET_BLOCK_PRE_AIO 5
428 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
430 #define FADVISE_COLD_BIT 0x01
431 #define FADVISE_LOST_PINO_BIT 0x02
432 #define FADVISE_ENCRYPT_BIT 0x04
433 #define FADVISE_ENC_NAME_BIT 0x08
434 #define FADVISE_KEEP_SIZE_BIT 0x10
436 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
437 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
438 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
439 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
440 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
441 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
442 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
443 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
444 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
445 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
446 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
447 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
448 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
450 #define DEF_DIR_LEVEL 0
452 struct f2fs_inode_info
{
453 struct inode vfs_inode
; /* serve a vfs inode */
454 unsigned long i_flags
; /* keep an inode flags for ioctl */
455 unsigned char i_advise
; /* use to give file attribute hints */
456 unsigned char i_dir_level
; /* use for dentry level for large dir */
457 unsigned int i_current_depth
; /* use only in directory structure */
458 unsigned int i_pino
; /* parent inode number */
459 umode_t i_acl_mode
; /* keep file acl mode temporarily */
461 /* Use below internally in f2fs*/
462 unsigned long flags
; /* use to pass per-file flags */
463 struct rw_semaphore i_sem
; /* protect fi info */
464 atomic_t dirty_pages
; /* # of dirty pages */
465 f2fs_hash_t chash
; /* hash value of given file name */
466 unsigned int clevel
; /* maximum level of given file name */
467 struct task_struct
*task
; /* lookup and create consistency */
468 nid_t i_xattr_nid
; /* node id that contains xattrs */
469 loff_t last_disk_size
; /* lastly written file size */
471 struct list_head dirty_list
; /* dirty list for dirs and files */
472 struct list_head gdirty_list
; /* linked in global dirty list */
473 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
474 struct mutex inmem_lock
; /* lock for inmemory pages */
475 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
476 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
479 static inline void get_extent_info(struct extent_info
*ext
,
480 struct f2fs_extent
*i_ext
)
482 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
483 ext
->blk
= le32_to_cpu(i_ext
->blk
);
484 ext
->len
= le32_to_cpu(i_ext
->len
);
487 static inline void set_raw_extent(struct extent_info
*ext
,
488 struct f2fs_extent
*i_ext
)
490 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
491 i_ext
->blk
= cpu_to_le32(ext
->blk
);
492 i_ext
->len
= cpu_to_le32(ext
->len
);
495 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
496 u32 blk
, unsigned int len
)
503 static inline bool __is_extent_mergeable(struct extent_info
*back
,
504 struct extent_info
*front
)
506 return (back
->fofs
+ back
->len
== front
->fofs
&&
507 back
->blk
+ back
->len
== front
->blk
);
510 static inline bool __is_back_mergeable(struct extent_info
*cur
,
511 struct extent_info
*back
)
513 return __is_extent_mergeable(back
, cur
);
516 static inline bool __is_front_mergeable(struct extent_info
*cur
,
517 struct extent_info
*front
)
519 return __is_extent_mergeable(cur
, front
);
522 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
523 static inline void __try_update_largest_extent(struct inode
*inode
,
524 struct extent_tree
*et
, struct extent_node
*en
)
526 if (en
->ei
.len
> et
->largest
.len
) {
527 et
->largest
= en
->ei
;
528 f2fs_mark_inode_dirty_sync(inode
, true);
538 struct f2fs_nm_info
{
539 block_t nat_blkaddr
; /* base disk address of NAT */
540 nid_t max_nid
; /* maximum possible node ids */
541 nid_t available_nids
; /* # of available node ids */
542 nid_t next_scan_nid
; /* the next nid to be scanned */
543 unsigned int ram_thresh
; /* control the memory footprint */
544 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
545 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
547 /* NAT cache management */
548 struct radix_tree_root nat_root
;/* root of the nat entry cache */
549 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
550 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
551 struct list_head nat_entries
; /* cached nat entry list (clean) */
552 unsigned int nat_cnt
; /* the # of cached nat entries */
553 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
554 unsigned int nat_blocks
; /* # of nat blocks */
556 /* free node ids management */
557 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
558 struct list_head nid_list
[MAX_NID_LIST
];/* lists for free nids */
559 unsigned int nid_cnt
[MAX_NID_LIST
]; /* the number of free node id */
560 spinlock_t nid_list_lock
; /* protect nid lists ops */
561 struct mutex build_lock
; /* lock for build free nids */
562 unsigned char (*free_nid_bitmap
)[NAT_ENTRY_BITMAP_SIZE
];
563 unsigned char *nat_block_bitmap
;
564 unsigned short *free_nid_count
; /* free nid count of NAT block */
565 spinlock_t free_nid_lock
; /* protect updating of nid count */
568 char *nat_bitmap
; /* NAT bitmap pointer */
570 unsigned int nat_bits_blocks
; /* # of nat bits blocks */
571 unsigned char *nat_bits
; /* NAT bits blocks */
572 unsigned char *full_nat_bits
; /* full NAT pages */
573 unsigned char *empty_nat_bits
; /* empty NAT pages */
574 #ifdef CONFIG_F2FS_CHECK_FS
575 char *nat_bitmap_mir
; /* NAT bitmap mirror */
577 int bitmap_size
; /* bitmap size */
581 * this structure is used as one of function parameters.
582 * all the information are dedicated to a given direct node block determined
583 * by the data offset in a file.
585 struct dnode_of_data
{
586 struct inode
*inode
; /* vfs inode pointer */
587 struct page
*inode_page
; /* its inode page, NULL is possible */
588 struct page
*node_page
; /* cached direct node page */
589 nid_t nid
; /* node id of the direct node block */
590 unsigned int ofs_in_node
; /* data offset in the node page */
591 bool inode_page_locked
; /* inode page is locked or not */
592 bool node_changed
; /* is node block changed */
593 char cur_level
; /* level of hole node page */
594 char max_level
; /* level of current page located */
595 block_t data_blkaddr
; /* block address of the node block */
598 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
599 struct page
*ipage
, struct page
*npage
, nid_t nid
)
601 memset(dn
, 0, sizeof(*dn
));
603 dn
->inode_page
= ipage
;
604 dn
->node_page
= npage
;
611 * By default, there are 6 active log areas across the whole main area.
612 * When considering hot and cold data separation to reduce cleaning overhead,
613 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
615 * In the current design, you should not change the numbers intentionally.
616 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
617 * logs individually according to the underlying devices. (default: 6)
618 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
619 * data and 8 for node logs.
621 #define NR_CURSEG_DATA_TYPE (3)
622 #define NR_CURSEG_NODE_TYPE (3)
623 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
626 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
627 CURSEG_WARM_DATA
, /* data blocks */
628 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
629 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
630 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
631 CURSEG_COLD_NODE
, /* indirect node blocks */
636 struct completion wait
;
637 struct llist_node llnode
;
641 struct flush_cmd_control
{
642 struct task_struct
*f2fs_issue_flush
; /* flush thread */
643 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
644 atomic_t submit_flush
; /* # of issued flushes */
645 struct llist_head issue_list
; /* list for command issue */
646 struct llist_node
*dispatch_list
; /* list for command dispatch */
649 struct f2fs_sm_info
{
650 struct sit_info
*sit_info
; /* whole segment information */
651 struct free_segmap_info
*free_info
; /* free segment information */
652 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
653 struct curseg_info
*curseg_array
; /* active segment information */
655 block_t seg0_blkaddr
; /* block address of 0'th segment */
656 block_t main_blkaddr
; /* start block address of main area */
657 block_t ssa_blkaddr
; /* start block address of SSA area */
659 unsigned int segment_count
; /* total # of segments */
660 unsigned int main_segments
; /* # of segments in main area */
661 unsigned int reserved_segments
; /* # of reserved segments */
662 unsigned int ovp_segments
; /* # of overprovision segments */
664 /* a threshold to reclaim prefree segments */
665 unsigned int rec_prefree_segments
;
667 /* for batched trimming */
668 unsigned int trim_sections
; /* # of sections to trim */
670 struct list_head sit_entry_set
; /* sit entry set list */
672 unsigned int ipu_policy
; /* in-place-update policy */
673 unsigned int min_ipu_util
; /* in-place-update threshold */
674 unsigned int min_fsync_blocks
; /* threshold for fsync */
676 /* for flush command control */
677 struct flush_cmd_control
*fcc_info
;
679 /* for discard command control */
680 struct discard_cmd_control
*dcc_info
;
687 * COUNT_TYPE for monitoring
689 * f2fs monitors the number of several block types such as on-writeback,
690 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
692 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
706 * The below are the page types of bios used in submit_bio().
707 * The available types are:
708 * DATA User data pages. It operates as async mode.
709 * NODE Node pages. It operates as async mode.
710 * META FS metadata pages such as SIT, NAT, CP.
711 * NR_PAGE_TYPE The number of page types.
712 * META_FLUSH Make sure the previous pages are written
713 * with waiting the bio's completion
714 * ... Only can be used with META.
716 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
723 INMEM
, /* the below types are used by tracepoints only. */
730 struct f2fs_io_info
{
731 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
732 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
733 int op
; /* contains REQ_OP_ */
734 int op_flags
; /* req_flag_bits */
735 block_t new_blkaddr
; /* new block address to be written */
736 block_t old_blkaddr
; /* old block address before Cow */
737 struct page
*page
; /* page to be written */
738 struct page
*encrypted_page
; /* encrypted page */
739 bool submitted
; /* indicate IO submission */
742 #define is_read_io(rw) (rw == READ)
743 struct f2fs_bio_info
{
744 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
745 struct bio
*bio
; /* bios to merge */
746 sector_t last_block_in_bio
; /* last block number */
747 struct f2fs_io_info fio
; /* store buffered io info. */
748 struct rw_semaphore io_rwsem
; /* blocking op for bio */
751 #define FDEV(i) (sbi->devs[i])
752 #define RDEV(i) (raw_super->devs[i])
753 struct f2fs_dev_info
{
754 struct block_device
*bdev
;
755 char path
[MAX_PATH_LEN
];
756 unsigned int total_segments
;
759 #ifdef CONFIG_BLK_DEV_ZONED
760 unsigned int nr_blkz
; /* Total number of zones */
761 u8
*blkz_type
; /* Array of zones type */
766 DIR_INODE
, /* for dirty dir inode */
767 FILE_INODE
, /* for dirty regular/symlink inode */
768 DIRTY_META
, /* for all dirtied inode metadata */
772 /* for inner inode cache management */
773 struct inode_management
{
774 struct radix_tree_root ino_root
; /* ino entry array */
775 spinlock_t ino_lock
; /* for ino entry lock */
776 struct list_head ino_list
; /* inode list head */
777 unsigned long ino_num
; /* number of entries */
780 /* For s_flag in struct f2fs_sb_info */
782 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
783 SBI_IS_CLOSE
, /* specify unmounting */
784 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
785 SBI_POR_DOING
, /* recovery is doing or not */
786 SBI_NEED_SB_WRITE
, /* need to recover superblock */
787 SBI_NEED_CP
, /* need to checkpoint */
796 struct f2fs_sb_info
{
797 struct super_block
*sb
; /* pointer to VFS super block */
798 struct proc_dir_entry
*s_proc
; /* proc entry */
799 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
800 int valid_super_block
; /* valid super block no */
801 unsigned long s_flag
; /* flags for sbi */
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 mutex 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 /* threshold for converting bg victims for fg */
895 /* maximum # of trials to find a victim segment for SSR and GC */
896 unsigned int max_victim_search
;
899 * for stat information.
900 * one is for the LFS mode, and the other is for the SSR mode.
902 #ifdef CONFIG_F2FS_STAT_FS
903 struct f2fs_stat_info
*stat_info
; /* FS status information */
904 unsigned int segment_count
[2]; /* # of allocated segments */
905 unsigned int block_count
[2]; /* # of allocated blocks */
906 atomic_t inplace_count
; /* # of inplace update */
907 atomic64_t total_hit_ext
; /* # of lookup extent cache */
908 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
909 atomic64_t read_hit_largest
; /* # of hit largest extent node */
910 atomic64_t read_hit_cached
; /* # of hit cached extent node */
911 atomic_t inline_xattr
; /* # of inline_xattr inodes */
912 atomic_t inline_inode
; /* # of inline_data inodes */
913 atomic_t inline_dir
; /* # of inline_dentry inodes */
914 atomic_t aw_cnt
; /* # of atomic writes */
915 atomic_t max_aw_cnt
; /* max # of atomic writes */
916 int bg_gc
; /* background gc calls */
917 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
919 unsigned int last_victim
[2]; /* last victim segment # */
920 spinlock_t stat_lock
; /* lock for stat operations */
922 /* For sysfs suppport */
923 struct kobject s_kobj
;
924 struct completion s_kobj_unregister
;
926 /* For shrinker support */
927 struct list_head s_list
;
928 int s_ndevs
; /* number of devices */
929 struct f2fs_dev_info
*devs
; /* for device list */
930 struct mutex umount_mutex
;
931 unsigned int shrinker_run_no
;
933 /* For write statistics */
934 u64 sectors_written_start
;
937 /* Reference to checksum algorithm driver via cryptoapi */
938 struct crypto_shash
*s_chksum_driver
;
940 /* For fault injection */
941 #ifdef CONFIG_F2FS_FAULT_INJECTION
942 struct f2fs_fault_info fault_info
;
946 #ifdef CONFIG_F2FS_FAULT_INJECTION
947 #define f2fs_show_injection_info(type) \
948 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
949 KERN_INFO, fault_name[type], \
950 __func__, __builtin_return_address(0))
951 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
953 struct f2fs_fault_info
*ffi
= &sbi
->fault_info
;
955 if (!ffi
->inject_rate
)
958 if (!IS_FAULT_SET(ffi
, type
))
961 atomic_inc(&ffi
->inject_ops
);
962 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
963 atomic_set(&ffi
->inject_ops
, 0);
970 /* For write statistics. Suppose sector size is 512 bytes,
971 * and the return value is in kbytes. s is of struct f2fs_sb_info.
973 #define BD_PART_WRITTEN(s) \
974 (((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
975 s->sectors_written_start) >> 1)
977 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
979 sbi
->last_time
[type
] = jiffies
;
982 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
984 struct timespec ts
= {sbi
->interval_time
[type
], 0};
985 unsigned long interval
= timespec_to_jiffies(&ts
);
987 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
990 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
992 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
993 struct request_queue
*q
= bdev_get_queue(bdev
);
994 struct request_list
*rl
= &q
->root_rl
;
996 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
999 return f2fs_time_over(sbi
, REQ_TIME
);
1005 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1006 unsigned int length
)
1008 SHASH_DESC_ON_STACK(shash
, sbi
->s_chksum_driver
);
1009 u32
*ctx
= (u32
*)shash_desc_ctx(shash
);
1012 shash
->tfm
= sbi
->s_chksum_driver
;
1014 *ctx
= F2FS_SUPER_MAGIC
;
1016 err
= crypto_shash_update(shash
, address
, length
);
1022 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1023 void *buf
, size_t buf_size
)
1025 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1028 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1030 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1033 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1035 return sb
->s_fs_info
;
1038 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1040 return F2FS_SB(inode
->i_sb
);
1043 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1045 return F2FS_I_SB(mapping
->host
);
1048 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1050 return F2FS_M_SB(page
->mapping
);
1053 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1055 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1058 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1060 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1063 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1065 return (struct f2fs_node
*)page_address(page
);
1068 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1070 return &((struct f2fs_node
*)page_address(page
))->i
;
1073 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1075 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1078 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1080 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1083 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1085 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1088 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1090 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1093 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1095 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1098 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1100 return sbi
->meta_inode
->i_mapping
;
1103 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1105 return sbi
->node_inode
->i_mapping
;
1108 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1110 return test_bit(type
, &sbi
->s_flag
);
1113 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1115 set_bit(type
, &sbi
->s_flag
);
1118 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1120 clear_bit(type
, &sbi
->s_flag
);
1123 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1125 return le64_to_cpu(cp
->checkpoint_ver
);
1128 static inline __u64
cur_cp_crc(struct f2fs_checkpoint
*cp
)
1130 size_t crc_offset
= le32_to_cpu(cp
->checksum_offset
);
1131 return le32_to_cpu(*((__le32
*)((unsigned char *)cp
+ crc_offset
)));
1134 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1136 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1138 return ckpt_flags
& f
;
1141 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1143 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1146 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1148 unsigned int ckpt_flags
;
1150 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1152 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1155 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1157 spin_lock(&sbi
->cp_lock
);
1158 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1159 spin_unlock(&sbi
->cp_lock
);
1162 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1164 unsigned int ckpt_flags
;
1166 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1168 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1171 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1173 spin_lock(&sbi
->cp_lock
);
1174 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1175 spin_unlock(&sbi
->cp_lock
);
1178 static inline void disable_nat_bits(struct f2fs_sb_info
*sbi
, bool lock
)
1180 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
1183 spin_lock(&sbi
->cp_lock
);
1184 __clear_ckpt_flags(F2FS_CKPT(sbi
), CP_NAT_BITS_FLAG
);
1185 kfree(NM_I(sbi
)->nat_bits
);
1186 NM_I(sbi
)->nat_bits
= NULL
;
1188 spin_unlock(&sbi
->cp_lock
);
1191 static inline bool enabled_nat_bits(struct f2fs_sb_info
*sbi
,
1192 struct cp_control
*cpc
)
1194 bool set
= is_set_ckpt_flags(sbi
, CP_NAT_BITS_FLAG
);
1196 return (cpc
) ? (cpc
->reason
== CP_UMOUNT
) && set
: set
;
1199 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1201 down_read(&sbi
->cp_rwsem
);
1204 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1206 up_read(&sbi
->cp_rwsem
);
1209 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1211 down_write(&sbi
->cp_rwsem
);
1214 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1216 up_write(&sbi
->cp_rwsem
);
1219 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1221 int reason
= CP_SYNC
;
1223 if (test_opt(sbi
, FASTBOOT
))
1224 reason
= CP_FASTBOOT
;
1225 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1230 static inline bool __remain_node_summaries(int reason
)
1232 return (reason
== CP_UMOUNT
|| reason
== CP_FASTBOOT
);
1235 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1237 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1238 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1242 * Check whether the given nid is within node id range.
1244 static inline int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
)
1246 if (unlikely(nid
< F2FS_ROOT_INO(sbi
)))
1248 if (unlikely(nid
>= NM_I(sbi
)->max_nid
))
1253 #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1256 * Check whether the inode has blocks or not
1258 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1260 if (F2FS_I(inode
)->i_xattr_nid
)
1261 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
+ 1;
1263 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
;
1266 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1268 return ofs
== XATTR_NODE_OFFSET
;
1271 static inline void f2fs_i_blocks_write(struct inode
*, blkcnt_t
, bool);
1272 static inline bool inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1273 struct inode
*inode
, blkcnt_t
*count
)
1277 #ifdef CONFIG_F2FS_FAULT_INJECTION
1278 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1279 f2fs_show_injection_info(FAULT_BLOCK
);
1284 * let's increase this in prior to actual block count change in order
1285 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1287 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1289 spin_lock(&sbi
->stat_lock
);
1290 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1291 if (unlikely(sbi
->total_valid_block_count
> sbi
->user_block_count
)) {
1292 diff
= sbi
->total_valid_block_count
- sbi
->user_block_count
;
1294 sbi
->total_valid_block_count
= sbi
->user_block_count
;
1296 spin_unlock(&sbi
->stat_lock
);
1297 percpu_counter_sub(&sbi
->alloc_valid_block_count
, diff
);
1301 spin_unlock(&sbi
->stat_lock
);
1303 f2fs_i_blocks_write(inode
, *count
, true);
1307 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1308 struct inode
*inode
,
1311 spin_lock(&sbi
->stat_lock
);
1312 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1313 f2fs_bug_on(sbi
, inode
->i_blocks
< count
);
1314 sbi
->total_valid_block_count
-= (block_t
)count
;
1315 spin_unlock(&sbi
->stat_lock
);
1316 f2fs_i_blocks_write(inode
, count
, false);
1319 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1321 atomic_inc(&sbi
->nr_pages
[count_type
]);
1323 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1324 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1327 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1330 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1332 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1333 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1334 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1337 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1339 atomic_dec(&sbi
->nr_pages
[count_type
]);
1342 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1344 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1345 !S_ISLNK(inode
->i_mode
))
1348 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1349 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1350 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1353 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1355 return atomic_read(&sbi
->nr_pages
[count_type
]);
1358 static inline int get_dirty_pages(struct inode
*inode
)
1360 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1363 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1365 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1366 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1367 sbi
->log_blocks_per_seg
;
1369 return segs
/ sbi
->segs_per_sec
;
1372 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1374 return sbi
->total_valid_block_count
;
1377 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1379 return sbi
->discard_blks
;
1382 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1384 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1386 /* return NAT or SIT bitmap */
1387 if (flag
== NAT_BITMAP
)
1388 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1389 else if (flag
== SIT_BITMAP
)
1390 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1395 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1397 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1400 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1402 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1405 if (__cp_payload(sbi
) > 0) {
1406 if (flag
== NAT_BITMAP
)
1407 return &ckpt
->sit_nat_version_bitmap
;
1409 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1411 offset
= (flag
== NAT_BITMAP
) ?
1412 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1413 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1417 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1419 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1421 if (sbi
->cur_cp_pack
== 2)
1422 start_addr
+= sbi
->blocks_per_seg
;
1426 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1428 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1430 if (sbi
->cur_cp_pack
== 1)
1431 start_addr
+= sbi
->blocks_per_seg
;
1435 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1437 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1440 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1442 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1445 static inline bool inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1446 struct inode
*inode
)
1448 block_t valid_block_count
;
1449 unsigned int valid_node_count
;
1451 spin_lock(&sbi
->stat_lock
);
1453 valid_block_count
= sbi
->total_valid_block_count
+ 1;
1454 if (unlikely(valid_block_count
> sbi
->user_block_count
)) {
1455 spin_unlock(&sbi
->stat_lock
);
1459 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1460 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1461 spin_unlock(&sbi
->stat_lock
);
1466 f2fs_i_blocks_write(inode
, 1, true);
1468 sbi
->total_valid_node_count
++;
1469 sbi
->total_valid_block_count
++;
1470 spin_unlock(&sbi
->stat_lock
);
1472 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1476 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1477 struct inode
*inode
)
1479 spin_lock(&sbi
->stat_lock
);
1481 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1482 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1483 f2fs_bug_on(sbi
, !inode
->i_blocks
);
1485 f2fs_i_blocks_write(inode
, 1, false);
1486 sbi
->total_valid_node_count
--;
1487 sbi
->total_valid_block_count
--;
1489 spin_unlock(&sbi
->stat_lock
);
1492 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1494 return sbi
->total_valid_node_count
;
1497 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1499 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1502 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1504 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1507 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1509 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1512 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1513 pgoff_t index
, bool for_write
)
1515 #ifdef CONFIG_F2FS_FAULT_INJECTION
1516 struct page
*page
= find_lock_page(mapping
, index
);
1521 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
)) {
1522 f2fs_show_injection_info(FAULT_PAGE_ALLOC
);
1527 return grab_cache_page(mapping
, index
);
1528 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1531 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1533 char *src_kaddr
= kmap(src
);
1534 char *dst_kaddr
= kmap(dst
);
1536 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1541 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1547 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1553 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1556 f2fs_put_page(dn
->node_page
, 1);
1557 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1558 f2fs_put_page(dn
->inode_page
, 0);
1559 dn
->node_page
= NULL
;
1560 dn
->inode_page
= NULL
;
1563 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
1566 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
1569 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
1574 entry
= kmem_cache_alloc(cachep
, flags
);
1576 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
1580 static inline struct bio
*f2fs_bio_alloc(int npages
)
1584 /* No failure on bio allocation */
1585 bio
= bio_alloc(GFP_NOIO
, npages
);
1587 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
1591 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
1592 unsigned long index
, void *item
)
1594 while (radix_tree_insert(root
, index
, item
))
1598 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1600 static inline bool IS_INODE(struct page
*page
)
1602 struct f2fs_node
*p
= F2FS_NODE(page
);
1604 return RAW_IS_INODE(p
);
1607 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
1609 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
1612 static inline block_t
datablock_addr(struct page
*node_page
,
1613 unsigned int offset
)
1615 struct f2fs_node
*raw_node
;
1618 raw_node
= F2FS_NODE(node_page
);
1619 addr_array
= blkaddr_in_node(raw_node
);
1620 return le32_to_cpu(addr_array
[offset
]);
1623 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
1628 mask
= 1 << (7 - (nr
& 0x07));
1629 return mask
& *addr
;
1632 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
1637 mask
= 1 << (7 - (nr
& 0x07));
1641 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
1646 mask
= 1 << (7 - (nr
& 0x07));
1650 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
1656 mask
= 1 << (7 - (nr
& 0x07));
1662 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
1668 mask
= 1 << (7 - (nr
& 0x07));
1674 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
1679 mask
= 1 << (7 - (nr
& 0x07));
1683 /* used for f2fs_inode_info->flags */
1685 FI_NEW_INODE
, /* indicate newly allocated inode */
1686 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
1687 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
1688 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
1689 FI_INC_LINK
, /* need to increment i_nlink */
1690 FI_ACL_MODE
, /* indicate acl mode */
1691 FI_NO_ALLOC
, /* should not allocate any blocks */
1692 FI_FREE_NID
, /* free allocated nide */
1693 FI_NO_EXTENT
, /* not to use the extent cache */
1694 FI_INLINE_XATTR
, /* used for inline xattr */
1695 FI_INLINE_DATA
, /* used for inline data*/
1696 FI_INLINE_DENTRY
, /* used for inline dentry */
1697 FI_APPEND_WRITE
, /* inode has appended data */
1698 FI_UPDATE_WRITE
, /* inode has in-place-update data */
1699 FI_NEED_IPU
, /* used for ipu per file */
1700 FI_ATOMIC_FILE
, /* indicate atomic file */
1701 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
1702 FI_VOLATILE_FILE
, /* indicate volatile file */
1703 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
1704 FI_DROP_CACHE
, /* drop dirty page cache */
1705 FI_DATA_EXIST
, /* indicate data exists */
1706 FI_INLINE_DOTS
, /* indicate inline dot dentries */
1707 FI_DO_DEFRAG
, /* indicate defragment is running */
1708 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
1709 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
1712 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
1716 case FI_INLINE_XATTR
:
1717 case FI_INLINE_DATA
:
1718 case FI_INLINE_DENTRY
:
1722 case FI_INLINE_DOTS
:
1723 f2fs_mark_inode_dirty_sync(inode
, true);
1727 static inline void set_inode_flag(struct inode
*inode
, int flag
)
1729 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
1730 set_bit(flag
, &F2FS_I(inode
)->flags
);
1731 __mark_inode_dirty_flag(inode
, flag
, true);
1734 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
1736 return test_bit(flag
, &F2FS_I(inode
)->flags
);
1739 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
1741 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
1742 clear_bit(flag
, &F2FS_I(inode
)->flags
);
1743 __mark_inode_dirty_flag(inode
, flag
, false);
1746 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
1748 F2FS_I(inode
)->i_acl_mode
= mode
;
1749 set_inode_flag(inode
, FI_ACL_MODE
);
1750 f2fs_mark_inode_dirty_sync(inode
, false);
1753 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
1759 f2fs_mark_inode_dirty_sync(inode
, true);
1762 static inline void f2fs_i_blocks_write(struct inode
*inode
,
1763 blkcnt_t diff
, bool add
)
1765 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1766 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1768 inode
->i_blocks
= add
? inode
->i_blocks
+ diff
:
1769 inode
->i_blocks
- diff
;
1770 f2fs_mark_inode_dirty_sync(inode
, true);
1771 if (clean
|| recover
)
1772 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1775 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
1777 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1778 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1780 if (i_size_read(inode
) == i_size
)
1783 i_size_write(inode
, i_size
);
1784 f2fs_mark_inode_dirty_sync(inode
, true);
1785 if (clean
|| recover
)
1786 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1789 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
1791 F2FS_I(inode
)->i_current_depth
= depth
;
1792 f2fs_mark_inode_dirty_sync(inode
, true);
1795 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
1797 F2FS_I(inode
)->i_xattr_nid
= xnid
;
1798 f2fs_mark_inode_dirty_sync(inode
, true);
1801 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
1803 F2FS_I(inode
)->i_pino
= pino
;
1804 f2fs_mark_inode_dirty_sync(inode
, true);
1807 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
1809 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
1811 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
1812 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
1813 if (ri
->i_inline
& F2FS_INLINE_DATA
)
1814 set_bit(FI_INLINE_DATA
, &fi
->flags
);
1815 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
1816 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
1817 if (ri
->i_inline
& F2FS_DATA_EXIST
)
1818 set_bit(FI_DATA_EXIST
, &fi
->flags
);
1819 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
1820 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
1823 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
1827 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
1828 ri
->i_inline
|= F2FS_INLINE_XATTR
;
1829 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
1830 ri
->i_inline
|= F2FS_INLINE_DATA
;
1831 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
1832 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
1833 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
1834 ri
->i_inline
|= F2FS_DATA_EXIST
;
1835 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
1836 ri
->i_inline
|= F2FS_INLINE_DOTS
;
1839 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
1841 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
1844 static inline unsigned int addrs_per_inode(struct inode
*inode
)
1846 if (f2fs_has_inline_xattr(inode
))
1847 return DEF_ADDRS_PER_INODE
- F2FS_INLINE_XATTR_ADDRS
;
1848 return DEF_ADDRS_PER_INODE
;
1851 static inline void *inline_xattr_addr(struct page
*page
)
1853 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1855 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
1856 F2FS_INLINE_XATTR_ADDRS
]);
1859 static inline int inline_xattr_size(struct inode
*inode
)
1861 if (f2fs_has_inline_xattr(inode
))
1862 return F2FS_INLINE_XATTR_ADDRS
<< 2;
1867 static inline int f2fs_has_inline_data(struct inode
*inode
)
1869 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
1872 static inline void f2fs_clear_inline_inode(struct inode
*inode
)
1874 clear_inode_flag(inode
, FI_INLINE_DATA
);
1875 clear_inode_flag(inode
, FI_DATA_EXIST
);
1878 static inline int f2fs_exist_data(struct inode
*inode
)
1880 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
1883 static inline int f2fs_has_inline_dots(struct inode
*inode
)
1885 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
1888 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
1890 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
1893 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
1895 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
1898 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
1900 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
1903 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
1905 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
1908 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
1910 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
1913 static inline void *inline_data_addr(struct page
*page
)
1915 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1917 return (void *)&(ri
->i_addr
[1]);
1920 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
1922 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
1925 static inline void f2fs_dentry_kunmap(struct inode
*dir
, struct page
*page
)
1927 if (!f2fs_has_inline_dentry(dir
))
1931 static inline int is_file(struct inode
*inode
, int type
)
1933 return F2FS_I(inode
)->i_advise
& type
;
1936 static inline void set_file(struct inode
*inode
, int type
)
1938 F2FS_I(inode
)->i_advise
|= type
;
1939 f2fs_mark_inode_dirty_sync(inode
, true);
1942 static inline void clear_file(struct inode
*inode
, int type
)
1944 F2FS_I(inode
)->i_advise
&= ~type
;
1945 f2fs_mark_inode_dirty_sync(inode
, true);
1948 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
1951 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
1954 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
1955 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
1956 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
1959 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
1960 file_keep_isize(inode
) ||
1961 i_size_read(inode
) & PAGE_MASK
)
1963 return F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
1966 static inline int f2fs_readonly(struct super_block
*sb
)
1968 return sb
->s_flags
& MS_RDONLY
;
1971 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
1973 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
1976 static inline bool is_dot_dotdot(const struct qstr
*str
)
1978 if (str
->len
== 1 && str
->name
[0] == '.')
1981 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
1987 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
1989 if (!test_opt(F2FS_I_SB(inode
), EXTENT_CACHE
) ||
1990 is_inode_flag_set(inode
, FI_NO_EXTENT
))
1993 return S_ISREG(inode
->i_mode
);
1996 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
1997 size_t size
, gfp_t flags
)
1999 #ifdef CONFIG_F2FS_FAULT_INJECTION
2000 if (time_to_inject(sbi
, FAULT_KMALLOC
)) {
2001 f2fs_show_injection_info(FAULT_KMALLOC
);
2005 return kmalloc(size
, flags
);
2008 static inline void *f2fs_kvmalloc(size_t size
, gfp_t flags
)
2012 ret
= kmalloc(size
, flags
| __GFP_NOWARN
);
2014 ret
= __vmalloc(size
, flags
, PAGE_KERNEL
);
2018 static inline void *f2fs_kvzalloc(size_t size
, gfp_t flags
)
2022 ret
= kzalloc(size
, flags
| __GFP_NOWARN
);
2024 ret
= __vmalloc(size
, flags
| __GFP_ZERO
, PAGE_KERNEL
);
2028 #define get_inode_mode(i) \
2029 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2030 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2032 /* get offset of first page in next direct node */
2033 #define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
2034 ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
2035 (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
2036 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
2041 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2042 void truncate_data_blocks(struct dnode_of_data
*dn
);
2043 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2044 int f2fs_truncate(struct inode
*inode
);
2045 int f2fs_getattr(const struct path
*path
, struct kstat
*stat
,
2046 u32 request_mask
, unsigned int flags
);
2047 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2048 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2049 int truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2050 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2051 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2056 void f2fs_set_inode_flags(struct inode
*inode
);
2057 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2058 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2059 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2060 int update_inode(struct inode
*inode
, struct page
*node_page
);
2061 int update_inode_page(struct inode
*inode
);
2062 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2063 void f2fs_evict_inode(struct inode
*inode
);
2064 void handle_failed_inode(struct inode
*inode
);
2069 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2074 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2075 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2076 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2077 f2fs_hash_t namehash
, int *max_slots
,
2078 struct f2fs_dentry_ptr
*d
);
2079 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2080 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2081 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2082 struct f2fs_dentry_ptr
*d
);
2083 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2084 const struct qstr
*new_name
,
2085 const struct qstr
*orig_name
, struct page
*dpage
);
2086 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2087 unsigned int current_depth
);
2088 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2089 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2090 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2091 struct fscrypt_name
*fname
, struct page
**res_page
);
2092 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2093 const struct qstr
*child
, struct page
**res_page
);
2094 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2095 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2096 struct page
**page
);
2097 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2098 struct page
*page
, struct inode
*inode
);
2099 int update_dent_inode(struct inode
*inode
, struct inode
*to
,
2100 const struct qstr
*name
);
2101 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2102 const struct qstr
*name
, f2fs_hash_t name_hash
,
2103 unsigned int bit_pos
);
2104 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2105 const struct qstr
*orig_name
,
2106 struct inode
*inode
, nid_t ino
, umode_t mode
);
2107 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2108 struct inode
*inode
, nid_t ino
, umode_t mode
);
2109 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2110 struct inode
*inode
, nid_t ino
, umode_t mode
);
2111 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2112 struct inode
*dir
, struct inode
*inode
);
2113 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2114 bool f2fs_empty_dir(struct inode
*dir
);
2116 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2118 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2119 inode
, inode
->i_ino
, inode
->i_mode
);
2125 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2126 void f2fs_inode_synced(struct inode
*inode
);
2127 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2128 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2129 extern __printf(3, 4)
2130 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2131 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2136 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
);
2141 struct dnode_of_data
;
2144 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2145 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2146 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2147 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2148 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2149 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2150 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2151 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2152 int truncate_xattr_node(struct inode
*inode
, struct page
*page
);
2153 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2154 int remove_inode_page(struct inode
*inode
);
2155 struct page
*new_inode_page(struct inode
*inode
);
2156 struct page
*new_node_page(struct dnode_of_data
*dn
,
2157 unsigned int ofs
, struct page
*ipage
);
2158 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2159 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2160 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2161 void move_node_page(struct page
*node_page
, int gc_type
);
2162 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2163 struct writeback_control
*wbc
, bool atomic
);
2164 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
);
2165 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
, bool mount
);
2166 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2167 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2168 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2169 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2170 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2171 int recover_xattr_data(struct inode
*inode
, struct page
*page
,
2173 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2174 int restore_node_summary(struct f2fs_sb_info
*sbi
,
2175 unsigned int segno
, struct f2fs_summary_block
*sum
);
2176 void flush_nat_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2177 int build_node_manager(struct f2fs_sb_info
*sbi
);
2178 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2179 int __init
create_node_manager_caches(void);
2180 void destroy_node_manager_caches(void);
2185 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2186 void drop_inmem_pages(struct inode
*inode
);
2187 int commit_inmem_pages(struct inode
*inode
);
2188 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2189 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2190 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
);
2191 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2192 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2193 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2194 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2195 void refresh_sit_entry(struct f2fs_sb_info
*sbi
, block_t old
, block_t
new);
2196 void f2fs_wait_discard_bio(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2197 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2198 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2199 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2200 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2201 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2202 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2203 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2204 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2205 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2206 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2207 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2208 void rewrite_data_page(struct f2fs_io_info
*fio
);
2209 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2210 block_t old_blkaddr
, block_t new_blkaddr
,
2211 bool recover_curseg
, bool recover_newaddr
);
2212 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2213 block_t old_addr
, block_t new_addr
,
2214 unsigned char version
, bool recover_curseg
,
2215 bool recover_newaddr
);
2216 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2217 block_t old_blkaddr
, block_t
*new_blkaddr
,
2218 struct f2fs_summary
*sum
, int type
);
2219 void f2fs_wait_on_page_writeback(struct page
*page
,
2220 enum page_type type
, bool ordered
);
2221 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info
*sbi
,
2223 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2224 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2225 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2226 unsigned int val
, int alloc
);
2227 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2228 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2229 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2230 int __init
create_segment_manager_caches(void);
2231 void destroy_segment_manager_caches(void);
2236 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2237 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2238 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2239 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2240 bool is_valid_blkaddr(struct f2fs_sb_info
*sbi
, block_t blkaddr
, int type
);
2241 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2242 int type
, bool sync
);
2243 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2244 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2246 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2247 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2248 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2249 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2250 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2251 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2252 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2253 void add_orphan_inode(struct inode
*inode
);
2254 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2255 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2256 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2257 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2258 void remove_dirty_inode(struct inode
*inode
);
2259 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2260 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2261 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2262 int __init
create_checkpoint_caches(void);
2263 void destroy_checkpoint_caches(void);
2268 void f2fs_submit_merged_bio(struct f2fs_sb_info
*sbi
, enum page_type type
,
2270 void f2fs_submit_merged_bio_cond(struct f2fs_sb_info
*sbi
,
2271 struct inode
*inode
, nid_t ino
, pgoff_t idx
,
2272 enum page_type type
, int rw
);
2273 void f2fs_flush_merged_bios(struct f2fs_sb_info
*sbi
);
2274 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2275 int f2fs_submit_page_mbio(struct f2fs_io_info
*fio
);
2276 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2277 block_t blk_addr
, struct bio
*bio
);
2278 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2279 void set_data_blkaddr(struct dnode_of_data
*dn
);
2280 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2281 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2282 int reserve_new_block(struct dnode_of_data
*dn
);
2283 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2284 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2285 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2286 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2287 int op_flags
, bool for_write
);
2288 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2289 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2291 struct page
*get_new_data_page(struct inode
*inode
,
2292 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2293 int do_write_data_page(struct f2fs_io_info
*fio
);
2294 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2295 int create
, int flag
);
2296 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2297 u64 start
, u64 len
);
2298 void f2fs_set_page_dirty_nobuffers(struct page
*page
);
2299 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2300 unsigned int length
);
2301 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2302 #ifdef CONFIG_MIGRATION
2303 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2304 struct page
*page
, enum migrate_mode mode
);
2310 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2311 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2312 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2313 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
);
2314 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2319 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2320 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2325 #ifdef CONFIG_F2FS_STAT_FS
2326 struct f2fs_stat_info
{
2327 struct list_head stat_list
;
2328 struct f2fs_sb_info
*sbi
;
2329 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2330 int main_area_segs
, main_area_sections
, main_area_zones
;
2331 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2332 unsigned long long hit_total
, total_ext
;
2333 int ext_tree
, zombie_tree
, ext_node
;
2334 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_data
, ndirty_imeta
;
2336 unsigned int ndirty_dirs
, ndirty_files
, ndirty_all
;
2337 int nats
, dirty_nats
, sits
, dirty_sits
, free_nids
, alloc_nids
;
2338 int total_count
, utilization
;
2339 int bg_gc
, nr_wb_cp_data
, nr_wb_data
, nr_flush
, nr_discard
;
2340 int inline_xattr
, inline_inode
, inline_dir
, append
, update
, orphans
;
2341 int aw_cnt
, max_aw_cnt
;
2342 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2343 unsigned int bimodal
, avg_vblocks
;
2344 int util_free
, util_valid
, util_invalid
;
2345 int rsvd_segs
, overp_segs
;
2346 int dirty_count
, node_pages
, meta_pages
;
2347 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2348 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2349 int bg_node_segs
, bg_data_segs
;
2350 int tot_blks
, data_blks
, node_blks
;
2351 int bg_data_blks
, bg_node_blks
;
2352 int curseg
[NR_CURSEG_TYPE
];
2353 int cursec
[NR_CURSEG_TYPE
];
2354 int curzone
[NR_CURSEG_TYPE
];
2356 unsigned int segment_count
[2];
2357 unsigned int block_count
[2];
2358 unsigned int inplace_count
;
2359 unsigned long long base_mem
, cache_mem
, page_mem
;
2362 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
2364 return (struct f2fs_stat_info
*)sbi
->stat_info
;
2367 #define stat_inc_cp_count(si) ((si)->cp_count++)
2368 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2369 #define stat_inc_call_count(si) ((si)->call_count++)
2370 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2371 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2372 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2373 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2374 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2375 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2376 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2377 #define stat_inc_inline_xattr(inode) \
2379 if (f2fs_has_inline_xattr(inode)) \
2380 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2382 #define stat_dec_inline_xattr(inode) \
2384 if (f2fs_has_inline_xattr(inode)) \
2385 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2387 #define stat_inc_inline_inode(inode) \
2389 if (f2fs_has_inline_data(inode)) \
2390 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2392 #define stat_dec_inline_inode(inode) \
2394 if (f2fs_has_inline_data(inode)) \
2395 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2397 #define stat_inc_inline_dir(inode) \
2399 if (f2fs_has_inline_dentry(inode)) \
2400 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2402 #define stat_dec_inline_dir(inode) \
2404 if (f2fs_has_inline_dentry(inode)) \
2405 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2407 #define stat_inc_seg_type(sbi, curseg) \
2408 ((sbi)->segment_count[(curseg)->alloc_type]++)
2409 #define stat_inc_block_count(sbi, curseg) \
2410 ((sbi)->block_count[(curseg)->alloc_type]++)
2411 #define stat_inc_inplace_blocks(sbi) \
2412 (atomic_inc(&(sbi)->inplace_count))
2413 #define stat_inc_atomic_write(inode) \
2414 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2415 #define stat_dec_atomic_write(inode) \
2416 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2417 #define stat_update_max_atomic_write(inode) \
2419 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2420 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2422 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2424 #define stat_inc_seg_count(sbi, type, gc_type) \
2426 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2428 if (type == SUM_TYPE_DATA) { \
2430 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2433 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2437 #define stat_inc_tot_blk_count(si, blks) \
2438 (si->tot_blks += (blks))
2440 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2442 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2443 stat_inc_tot_blk_count(si, blks); \
2444 si->data_blks += (blks); \
2445 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
2448 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2450 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2451 stat_inc_tot_blk_count(si, blks); \
2452 si->node_blks += (blks); \
2453 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
2456 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
2457 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
2458 int __init
f2fs_create_root_stats(void);
2459 void f2fs_destroy_root_stats(void);
2461 #define stat_inc_cp_count(si)
2462 #define stat_inc_bg_cp_count(si)
2463 #define stat_inc_call_count(si)
2464 #define stat_inc_bggc_count(si)
2465 #define stat_inc_dirty_inode(sbi, type)
2466 #define stat_dec_dirty_inode(sbi, type)
2467 #define stat_inc_total_hit(sb)
2468 #define stat_inc_rbtree_node_hit(sb)
2469 #define stat_inc_largest_node_hit(sbi)
2470 #define stat_inc_cached_node_hit(sbi)
2471 #define stat_inc_inline_xattr(inode)
2472 #define stat_dec_inline_xattr(inode)
2473 #define stat_inc_inline_inode(inode)
2474 #define stat_dec_inline_inode(inode)
2475 #define stat_inc_inline_dir(inode)
2476 #define stat_dec_inline_dir(inode)
2477 #define stat_inc_atomic_write(inode)
2478 #define stat_dec_atomic_write(inode)
2479 #define stat_update_max_atomic_write(inode)
2480 #define stat_inc_seg_type(sbi, curseg)
2481 #define stat_inc_block_count(sbi, curseg)
2482 #define stat_inc_inplace_blocks(sbi)
2483 #define stat_inc_seg_count(sbi, type, gc_type)
2484 #define stat_inc_tot_blk_count(si, blks)
2485 #define stat_inc_data_blk_count(sbi, blks, gc_type)
2486 #define stat_inc_node_blk_count(sbi, blks, gc_type)
2488 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
2489 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
2490 static inline int __init
f2fs_create_root_stats(void) { return 0; }
2491 static inline void f2fs_destroy_root_stats(void) { }
2494 extern const struct file_operations f2fs_dir_operations
;
2495 extern const struct file_operations f2fs_file_operations
;
2496 extern const struct inode_operations f2fs_file_inode_operations
;
2497 extern const struct address_space_operations f2fs_dblock_aops
;
2498 extern const struct address_space_operations f2fs_node_aops
;
2499 extern const struct address_space_operations f2fs_meta_aops
;
2500 extern const struct inode_operations f2fs_dir_inode_operations
;
2501 extern const struct inode_operations f2fs_symlink_inode_operations
;
2502 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
2503 extern const struct inode_operations f2fs_special_inode_operations
;
2504 extern struct kmem_cache
*inode_entry_slab
;
2509 bool f2fs_may_inline_data(struct inode
*inode
);
2510 bool f2fs_may_inline_dentry(struct inode
*inode
);
2511 void read_inline_data(struct page
*page
, struct page
*ipage
);
2512 bool truncate_inline_inode(struct page
*ipage
, u64 from
);
2513 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
2514 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
2515 int f2fs_convert_inline_inode(struct inode
*inode
);
2516 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
2517 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
2518 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
2519 struct fscrypt_name
*fname
, struct page
**res_page
);
2520 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
2521 struct page
*ipage
);
2522 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
2523 const struct qstr
*orig_name
,
2524 struct inode
*inode
, nid_t ino
, umode_t mode
);
2525 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2526 struct inode
*dir
, struct inode
*inode
);
2527 bool f2fs_empty_inline_dir(struct inode
*dir
);
2528 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
2529 struct fscrypt_str
*fstr
);
2530 int f2fs_inline_data_fiemap(struct inode
*inode
,
2531 struct fiemap_extent_info
*fieinfo
,
2532 __u64 start
, __u64 len
);
2537 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
2538 struct shrink_control
*sc
);
2539 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
2540 struct shrink_control
*sc
);
2541 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
2542 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
2547 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2548 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
2549 void f2fs_drop_extent_tree(struct inode
*inode
);
2550 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
2551 void f2fs_destroy_extent_tree(struct inode
*inode
);
2552 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
2553 struct extent_info
*ei
);
2554 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
2555 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
2556 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
2557 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
2558 int __init
create_extent_cache(void);
2559 void destroy_extent_cache(void);
2564 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
2566 return file_is_encrypt(inode
);
2569 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
2571 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2572 file_set_encrypt(inode
);
2576 static inline bool f2fs_bio_encrypted(struct bio
*bio
)
2578 return bio
->bi_private
!= NULL
;
2581 static inline int f2fs_sb_has_crypto(struct super_block
*sb
)
2583 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_ENCRYPT
);
2586 static inline int f2fs_sb_mounted_blkzoned(struct super_block
*sb
)
2588 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_BLKZONED
);
2591 #ifdef CONFIG_BLK_DEV_ZONED
2592 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
2593 struct block_device
*bdev
, block_t blkaddr
)
2595 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
2598 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
2599 if (FDEV(i
).bdev
== bdev
)
2600 return FDEV(i
).blkz_type
[zno
];
2605 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
2607 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
2609 return blk_queue_discard(q
) || f2fs_sb_mounted_blkzoned(sbi
->sb
);
2612 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
2614 clear_opt(sbi
, ADAPTIVE
);
2615 clear_opt(sbi
, LFS
);
2618 case F2FS_MOUNT_ADAPTIVE
:
2619 set_opt(sbi
, ADAPTIVE
);
2621 case F2FS_MOUNT_LFS
:
2627 static inline bool f2fs_may_encrypt(struct inode
*inode
)
2629 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2630 umode_t mode
= inode
->i_mode
;
2632 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));