4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 #include <linux/types.h>
15 #include <linux/page-flags.h>
16 #include <linux/buffer_head.h>
17 #include <linux/slab.h>
18 #include <linux/crc32.h>
19 #include <linux/magic.h>
20 #include <linux/kobject.h>
21 #include <linux/sched.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #ifdef CONFIG_F2FS_FS_ENCRYPTION
26 #include <linux/fscrypt_supp.h>
28 #include <linux/fscrypt_notsupp.h>
30 #include <crypto/hash.h>
32 #ifdef CONFIG_F2FS_CHECK_FS
33 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
35 #define f2fs_bug_on(sbi, condition) \
37 if (unlikely(condition)) { \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
44 #ifdef CONFIG_F2FS_FAULT_INJECTION
59 struct f2fs_fault_info
{
61 unsigned int inject_rate
;
62 unsigned int inject_type
;
65 extern char *fault_name
[FAULT_MAX
];
66 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
72 #define F2FS_MOUNT_BG_GC 0x00000001
73 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
74 #define F2FS_MOUNT_DISCARD 0x00000004
75 #define F2FS_MOUNT_NOHEAP 0x00000008
76 #define F2FS_MOUNT_XATTR_USER 0x00000010
77 #define F2FS_MOUNT_POSIX_ACL 0x00000020
78 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
79 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
80 #define F2FS_MOUNT_INLINE_DATA 0x00000100
81 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
82 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
83 #define F2FS_MOUNT_NOBARRIER 0x00000800
84 #define F2FS_MOUNT_FASTBOOT 0x00001000
85 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
86 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
87 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
88 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
89 #define F2FS_MOUNT_ADAPTIVE 0x00020000
90 #define F2FS_MOUNT_LFS 0x00040000
92 #define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
93 #define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
94 #define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option)
96 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
97 typecheck(unsigned long long, b) && \
98 ((long long)((a) - (b)) > 0))
100 typedef u32 block_t
; /*
101 * should not change u32, since it is the on-disk block
102 * address format, __le32.
106 struct f2fs_mount_info
{
110 #define F2FS_FEATURE_ENCRYPT 0x0001
111 #define F2FS_FEATURE_BLKZONED 0x0002
113 #define F2FS_HAS_FEATURE(sb, mask) \
114 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
115 #define F2FS_SET_FEATURE(sb, mask) \
116 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
117 #define F2FS_CLEAR_FEATURE(sb, mask) \
118 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
121 * For checkpoint manager
128 #define CP_UMOUNT 0x00000001
129 #define CP_FASTBOOT 0x00000002
130 #define CP_SYNC 0x00000004
131 #define CP_RECOVERY 0x00000008
132 #define CP_DISCARD 0x00000010
133 #define CP_TRIMMED 0x00000020
135 #define DEF_BATCHED_TRIM_SECTIONS 2048
136 #define BATCHED_TRIM_SEGMENTS(sbi) \
137 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
138 #define BATCHED_TRIM_BLOCKS(sbi) \
139 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
140 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
141 #define DISCARD_ISSUE_RATE 8
142 #define DEF_CP_INTERVAL 60 /* 60 secs */
143 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
154 * For CP/NAT/SIT/SSA readahead
164 /* for the list of ino */
166 ORPHAN_INO
, /* for orphan ino list */
167 APPEND_INO
, /* for append ino list */
168 UPDATE_INO
, /* for update ino list */
169 MAX_INO_ENTRY
, /* max. list */
173 struct list_head list
; /* list head */
174 nid_t ino
; /* inode number */
177 /* for the list of inodes to be GCed */
179 struct list_head list
; /* list head */
180 struct inode
*inode
; /* vfs inode pointer */
183 /* for the bitmap indicate blocks to be discarded */
184 struct discard_entry
{
185 struct list_head list
; /* list head */
186 block_t start_blkaddr
; /* start blockaddr of current segment */
187 unsigned char discard_map
[SIT_VBLOCK_MAP_SIZE
]; /* segment discard bitmap */
190 /* max discard pend list number */
191 #define MAX_PLIST_NUM 512
192 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
193 (MAX_PLIST_NUM - 1) : (blk_num - 1))
201 struct discard_info
{
202 block_t lstart
; /* logical start address */
203 block_t len
; /* length */
204 block_t start
; /* actual start address in dev */
208 struct rb_node rb_node
; /* rb node located in rb-tree */
211 block_t lstart
; /* logical start address */
212 block_t len
; /* length */
213 block_t start
; /* actual start address in dev */
215 struct discard_info di
; /* discard info */
218 struct list_head list
; /* command list */
219 struct completion wait
; /* compleation */
220 struct block_device
*bdev
; /* bdev */
221 unsigned short ref
; /* reference count */
222 unsigned char state
; /* state */
223 int error
; /* bio error */
226 struct discard_cmd_control
{
227 struct task_struct
*f2fs_issue_discard
; /* discard thread */
228 struct list_head entry_list
; /* 4KB discard entry list */
229 struct list_head pend_list
[MAX_PLIST_NUM
];/* store pending entries */
230 struct list_head wait_list
; /* store on-flushing entries */
231 wait_queue_head_t discard_wait_queue
; /* waiting queue for wake-up */
232 struct mutex cmd_lock
;
233 unsigned int nr_discards
; /* # of discards in the list */
234 unsigned int max_discards
; /* max. discards to be issued */
235 unsigned int undiscard_blks
; /* # of undiscard blocks */
236 atomic_t issued_discard
; /* # of issued discard */
237 atomic_t issing_discard
; /* # of issing discard */
238 atomic_t discard_cmd_cnt
; /* # of cached cmd count */
239 struct rb_root root
; /* root of discard rb-tree */
242 /* for the list of fsync inodes, used only during recovery */
243 struct fsync_inode_entry
{
244 struct list_head list
; /* list head */
245 struct inode
*inode
; /* vfs inode pointer */
246 block_t blkaddr
; /* block address locating the last fsync */
247 block_t last_dentry
; /* block address locating the last dentry */
250 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
251 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
253 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
254 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
255 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
256 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
258 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
259 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
261 static inline int update_nats_in_cursum(struct f2fs_journal
*journal
, int i
)
263 int before
= nats_in_cursum(journal
);
265 journal
->n_nats
= cpu_to_le16(before
+ i
);
269 static inline int update_sits_in_cursum(struct f2fs_journal
*journal
, int i
)
271 int before
= sits_in_cursum(journal
);
273 journal
->n_sits
= cpu_to_le16(before
+ i
);
277 static inline bool __has_cursum_space(struct f2fs_journal
*journal
,
280 if (type
== NAT_JOURNAL
)
281 return size
<= MAX_NAT_JENTRIES(journal
);
282 return size
<= MAX_SIT_JENTRIES(journal
);
288 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
289 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
290 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
292 #define F2FS_IOCTL_MAGIC 0xf5
293 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
294 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
295 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
296 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
297 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
298 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
299 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
300 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
301 struct f2fs_defragment)
302 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
303 struct f2fs_move_range)
304 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
305 struct f2fs_flush_device)
307 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
308 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
309 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
312 * should be same as XFS_IOC_GOINGDOWN.
313 * Flags for going down operation used by FS_IOC_GOINGDOWN
315 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
316 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
317 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
318 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
319 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
321 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
323 * ioctl commands in 32 bit emulation
325 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
326 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
327 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
330 struct f2fs_defragment
{
335 struct f2fs_move_range
{
336 u32 dst_fd
; /* destination fd */
337 u64 pos_in
; /* start position in src_fd */
338 u64 pos_out
; /* start position in dst_fd */
339 u64 len
; /* size to move */
342 struct f2fs_flush_device
{
343 u32 dev_num
; /* device number to flush */
344 u32 segments
; /* # of segments to flush */
348 * For INODE and NODE manager
350 /* for directory operations */
351 struct f2fs_dentry_ptr
{
354 struct f2fs_dir_entry
*dentry
;
355 __u8 (*filename
)[F2FS_SLOT_LEN
];
359 static inline void make_dentry_ptr_block(struct inode
*inode
,
360 struct f2fs_dentry_ptr
*d
, struct f2fs_dentry_block
*t
)
363 d
->max
= NR_DENTRY_IN_BLOCK
;
364 d
->bitmap
= &t
->dentry_bitmap
;
365 d
->dentry
= t
->dentry
;
366 d
->filename
= t
->filename
;
369 static inline void make_dentry_ptr_inline(struct inode
*inode
,
370 struct f2fs_dentry_ptr
*d
, struct f2fs_inline_dentry
*t
)
373 d
->max
= NR_INLINE_DENTRY
;
374 d
->bitmap
= &t
->dentry_bitmap
;
375 d
->dentry
= t
->dentry
;
376 d
->filename
= t
->filename
;
380 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
381 * as its node offset to distinguish from index node blocks.
382 * But some bits are used to mark the node block.
384 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
387 ALLOC_NODE
, /* allocate a new node page if needed */
388 LOOKUP_NODE
, /* look up a node without readahead */
390 * look up a node with readahead called
395 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
397 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
399 /* vector size for gang look-up from extent cache that consists of radix tree */
400 #define EXT_TREE_VEC_SIZE 64
402 /* for in-memory extent cache entry */
403 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
405 /* number of extent info in extent cache we try to shrink */
406 #define EXTENT_CACHE_SHRINK_NUMBER 128
409 struct rb_node rb_node
; /* rb node located in rb-tree */
410 unsigned int ofs
; /* start offset of the entry */
411 unsigned int len
; /* length of the entry */
415 unsigned int fofs
; /* start offset in a file */
416 unsigned int len
; /* length of the extent */
417 u32 blk
; /* start block address of the extent */
421 struct rb_node rb_node
;
428 struct extent_info ei
; /* extent info */
431 struct list_head list
; /* node in global extent list of sbi */
432 struct extent_tree
*et
; /* extent tree pointer */
436 nid_t ino
; /* inode number */
437 struct rb_root root
; /* root of extent info rb-tree */
438 struct extent_node
*cached_en
; /* recently accessed extent node */
439 struct extent_info largest
; /* largested extent info */
440 struct list_head list
; /* to be used by sbi->zombie_list */
441 rwlock_t lock
; /* protect extent info rb-tree */
442 atomic_t node_cnt
; /* # of extent node in rb-tree*/
446 * This structure is taken from ext4_map_blocks.
448 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
450 #define F2FS_MAP_NEW (1 << BH_New)
451 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
452 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
453 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
456 struct f2fs_map_blocks
{
460 unsigned int m_flags
;
461 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
464 /* for flag in get_data_block */
465 #define F2FS_GET_BLOCK_READ 0
466 #define F2FS_GET_BLOCK_DIO 1
467 #define F2FS_GET_BLOCK_FIEMAP 2
468 #define F2FS_GET_BLOCK_BMAP 3
469 #define F2FS_GET_BLOCK_PRE_DIO 4
470 #define F2FS_GET_BLOCK_PRE_AIO 5
473 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
475 #define FADVISE_COLD_BIT 0x01
476 #define FADVISE_LOST_PINO_BIT 0x02
477 #define FADVISE_ENCRYPT_BIT 0x04
478 #define FADVISE_ENC_NAME_BIT 0x08
479 #define FADVISE_KEEP_SIZE_BIT 0x10
481 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
482 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
483 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
484 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
485 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
486 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
487 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
488 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
489 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
490 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
491 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
492 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
493 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
495 #define DEF_DIR_LEVEL 0
497 struct f2fs_inode_info
{
498 struct inode vfs_inode
; /* serve a vfs inode */
499 unsigned long i_flags
; /* keep an inode flags for ioctl */
500 unsigned char i_advise
; /* use to give file attribute hints */
501 unsigned char i_dir_level
; /* use for dentry level for large dir */
502 unsigned int i_current_depth
; /* use only in directory structure */
503 unsigned int i_pino
; /* parent inode number */
504 umode_t i_acl_mode
; /* keep file acl mode temporarily */
506 /* Use below internally in f2fs*/
507 unsigned long flags
; /* use to pass per-file flags */
508 struct rw_semaphore i_sem
; /* protect fi info */
509 atomic_t dirty_pages
; /* # of dirty pages */
510 f2fs_hash_t chash
; /* hash value of given file name */
511 unsigned int clevel
; /* maximum level of given file name */
512 struct task_struct
*task
; /* lookup and create consistency */
513 nid_t i_xattr_nid
; /* node id that contains xattrs */
514 loff_t last_disk_size
; /* lastly written file size */
516 struct list_head dirty_list
; /* dirty list for dirs and files */
517 struct list_head gdirty_list
; /* linked in global dirty list */
518 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
519 struct mutex inmem_lock
; /* lock for inmemory pages */
520 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
521 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
524 static inline void get_extent_info(struct extent_info
*ext
,
525 struct f2fs_extent
*i_ext
)
527 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
528 ext
->blk
= le32_to_cpu(i_ext
->blk
);
529 ext
->len
= le32_to_cpu(i_ext
->len
);
532 static inline void set_raw_extent(struct extent_info
*ext
,
533 struct f2fs_extent
*i_ext
)
535 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
536 i_ext
->blk
= cpu_to_le32(ext
->blk
);
537 i_ext
->len
= cpu_to_le32(ext
->len
);
540 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
541 u32 blk
, unsigned int len
)
548 static inline bool __is_discard_mergeable(struct discard_info
*back
,
549 struct discard_info
*front
)
551 return back
->lstart
+ back
->len
== front
->lstart
;
554 static inline bool __is_discard_back_mergeable(struct discard_info
*cur
,
555 struct discard_info
*back
)
557 return __is_discard_mergeable(back
, cur
);
560 static inline bool __is_discard_front_mergeable(struct discard_info
*cur
,
561 struct discard_info
*front
)
563 return __is_discard_mergeable(cur
, front
);
566 static inline bool __is_extent_mergeable(struct extent_info
*back
,
567 struct extent_info
*front
)
569 return (back
->fofs
+ back
->len
== front
->fofs
&&
570 back
->blk
+ back
->len
== front
->blk
);
573 static inline bool __is_back_mergeable(struct extent_info
*cur
,
574 struct extent_info
*back
)
576 return __is_extent_mergeable(back
, cur
);
579 static inline bool __is_front_mergeable(struct extent_info
*cur
,
580 struct extent_info
*front
)
582 return __is_extent_mergeable(cur
, front
);
585 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
586 static inline void __try_update_largest_extent(struct inode
*inode
,
587 struct extent_tree
*et
, struct extent_node
*en
)
589 if (en
->ei
.len
> et
->largest
.len
) {
590 et
->largest
= en
->ei
;
591 f2fs_mark_inode_dirty_sync(inode
, true);
601 struct f2fs_nm_info
{
602 block_t nat_blkaddr
; /* base disk address of NAT */
603 nid_t max_nid
; /* maximum possible node ids */
604 nid_t available_nids
; /* # of available node ids */
605 nid_t next_scan_nid
; /* the next nid to be scanned */
606 unsigned int ram_thresh
; /* control the memory footprint */
607 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
608 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
610 /* NAT cache management */
611 struct radix_tree_root nat_root
;/* root of the nat entry cache */
612 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
613 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
614 struct list_head nat_entries
; /* cached nat entry list (clean) */
615 unsigned int nat_cnt
; /* the # of cached nat entries */
616 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
617 unsigned int nat_blocks
; /* # of nat blocks */
619 /* free node ids management */
620 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
621 struct list_head nid_list
[MAX_NID_LIST
];/* lists for free nids */
622 unsigned int nid_cnt
[MAX_NID_LIST
]; /* the number of free node id */
623 spinlock_t nid_list_lock
; /* protect nid lists ops */
624 struct mutex build_lock
; /* lock for build free nids */
625 unsigned char (*free_nid_bitmap
)[NAT_ENTRY_BITMAP_SIZE
];
626 unsigned char *nat_block_bitmap
;
627 unsigned short *free_nid_count
; /* free nid count of NAT block */
630 char *nat_bitmap
; /* NAT bitmap pointer */
632 unsigned int nat_bits_blocks
; /* # of nat bits blocks */
633 unsigned char *nat_bits
; /* NAT bits blocks */
634 unsigned char *full_nat_bits
; /* full NAT pages */
635 unsigned char *empty_nat_bits
; /* empty NAT pages */
636 #ifdef CONFIG_F2FS_CHECK_FS
637 char *nat_bitmap_mir
; /* NAT bitmap mirror */
639 int bitmap_size
; /* bitmap size */
643 * this structure is used as one of function parameters.
644 * all the information are dedicated to a given direct node block determined
645 * by the data offset in a file.
647 struct dnode_of_data
{
648 struct inode
*inode
; /* vfs inode pointer */
649 struct page
*inode_page
; /* its inode page, NULL is possible */
650 struct page
*node_page
; /* cached direct node page */
651 nid_t nid
; /* node id of the direct node block */
652 unsigned int ofs_in_node
; /* data offset in the node page */
653 bool inode_page_locked
; /* inode page is locked or not */
654 bool node_changed
; /* is node block changed */
655 char cur_level
; /* level of hole node page */
656 char max_level
; /* level of current page located */
657 block_t data_blkaddr
; /* block address of the node block */
660 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
661 struct page
*ipage
, struct page
*npage
, nid_t nid
)
663 memset(dn
, 0, sizeof(*dn
));
665 dn
->inode_page
= ipage
;
666 dn
->node_page
= npage
;
673 * By default, there are 6 active log areas across the whole main area.
674 * When considering hot and cold data separation to reduce cleaning overhead,
675 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
677 * In the current design, you should not change the numbers intentionally.
678 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
679 * logs individually according to the underlying devices. (default: 6)
680 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
681 * data and 8 for node logs.
683 #define NR_CURSEG_DATA_TYPE (3)
684 #define NR_CURSEG_NODE_TYPE (3)
685 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
688 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
689 CURSEG_WARM_DATA
, /* data blocks */
690 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
691 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
692 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
693 CURSEG_COLD_NODE
, /* indirect node blocks */
698 struct completion wait
;
699 struct llist_node llnode
;
703 struct flush_cmd_control
{
704 struct task_struct
*f2fs_issue_flush
; /* flush thread */
705 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
706 atomic_t issued_flush
; /* # of issued flushes */
707 atomic_t issing_flush
; /* # of issing flushes */
708 struct llist_head issue_list
; /* list for command issue */
709 struct llist_node
*dispatch_list
; /* list for command dispatch */
712 struct f2fs_sm_info
{
713 struct sit_info
*sit_info
; /* whole segment information */
714 struct free_segmap_info
*free_info
; /* free segment information */
715 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
716 struct curseg_info
*curseg_array
; /* active segment information */
718 block_t seg0_blkaddr
; /* block address of 0'th segment */
719 block_t main_blkaddr
; /* start block address of main area */
720 block_t ssa_blkaddr
; /* start block address of SSA area */
722 unsigned int segment_count
; /* total # of segments */
723 unsigned int main_segments
; /* # of segments in main area */
724 unsigned int reserved_segments
; /* # of reserved segments */
725 unsigned int ovp_segments
; /* # of overprovision segments */
727 /* a threshold to reclaim prefree segments */
728 unsigned int rec_prefree_segments
;
730 /* for batched trimming */
731 unsigned int trim_sections
; /* # of sections to trim */
733 struct list_head sit_entry_set
; /* sit entry set list */
735 unsigned int ipu_policy
; /* in-place-update policy */
736 unsigned int min_ipu_util
; /* in-place-update threshold */
737 unsigned int min_fsync_blocks
; /* threshold for fsync */
738 unsigned int min_hot_blocks
; /* threshold for hot block allocation */
740 /* for flush command control */
741 struct flush_cmd_control
*fcc_info
;
743 /* for discard command control */
744 struct discard_cmd_control
*dcc_info
;
751 * COUNT_TYPE for monitoring
753 * f2fs monitors the number of several block types such as on-writeback,
754 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
756 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
770 * The below are the page types of bios used in submit_bio().
771 * The available types are:
772 * DATA User data pages. It operates as async mode.
773 * NODE Node pages. It operates as async mode.
774 * META FS metadata pages such as SIT, NAT, CP.
775 * NR_PAGE_TYPE The number of page types.
776 * META_FLUSH Make sure the previous pages are written
777 * with waiting the bio's completion
778 * ... Only can be used with META.
780 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
787 INMEM
, /* the below types are used by tracepoints only. */
795 struct f2fs_io_info
{
796 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
797 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
798 int op
; /* contains REQ_OP_ */
799 int op_flags
; /* req_flag_bits */
800 block_t new_blkaddr
; /* new block address to be written */
801 block_t old_blkaddr
; /* old block address before Cow */
802 struct page
*page
; /* page to be written */
803 struct page
*encrypted_page
; /* encrypted page */
804 bool submitted
; /* indicate IO submission */
805 bool need_lock
; /* indicate we need to lock cp_rwsem */
808 #define is_read_io(rw) ((rw) == READ)
809 struct f2fs_bio_info
{
810 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
811 struct bio
*bio
; /* bios to merge */
812 sector_t last_block_in_bio
; /* last block number */
813 struct f2fs_io_info fio
; /* store buffered io info. */
814 struct rw_semaphore io_rwsem
; /* blocking op for bio */
817 #define FDEV(i) (sbi->devs[i])
818 #define RDEV(i) (raw_super->devs[i])
819 struct f2fs_dev_info
{
820 struct block_device
*bdev
;
821 char path
[MAX_PATH_LEN
];
822 unsigned int total_segments
;
825 #ifdef CONFIG_BLK_DEV_ZONED
826 unsigned int nr_blkz
; /* Total number of zones */
827 u8
*blkz_type
; /* Array of zones type */
832 DIR_INODE
, /* for dirty dir inode */
833 FILE_INODE
, /* for dirty regular/symlink inode */
834 DIRTY_META
, /* for all dirtied inode metadata */
838 /* for inner inode cache management */
839 struct inode_management
{
840 struct radix_tree_root ino_root
; /* ino entry array */
841 spinlock_t ino_lock
; /* for ino entry lock */
842 struct list_head ino_list
; /* inode list head */
843 unsigned long ino_num
; /* number of entries */
846 /* For s_flag in struct f2fs_sb_info */
848 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
849 SBI_IS_CLOSE
, /* specify unmounting */
850 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
851 SBI_POR_DOING
, /* recovery is doing or not */
852 SBI_NEED_SB_WRITE
, /* need to recover superblock */
853 SBI_NEED_CP
, /* need to checkpoint */
862 struct f2fs_sb_info
{
863 struct super_block
*sb
; /* pointer to VFS super block */
864 struct proc_dir_entry
*s_proc
; /* proc entry */
865 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
866 int valid_super_block
; /* valid super block no */
867 unsigned long s_flag
; /* flags for sbi */
869 #ifdef CONFIG_BLK_DEV_ZONED
870 unsigned int blocks_per_blkz
; /* F2FS blocks per zone */
871 unsigned int log_blocks_per_blkz
; /* log2 F2FS blocks per zone */
874 /* for node-related operations */
875 struct f2fs_nm_info
*nm_info
; /* node manager */
876 struct inode
*node_inode
; /* cache node blocks */
878 /* for segment-related operations */
879 struct f2fs_sm_info
*sm_info
; /* segment manager */
881 /* for bio operations */
882 struct f2fs_bio_info read_io
; /* for read bios */
883 struct f2fs_bio_info write_io
[NR_PAGE_TYPE
]; /* for write bios */
884 struct mutex wio_mutex
[NODE
+ 1]; /* bio ordering for NODE/DATA */
885 int write_io_size_bits
; /* Write IO size bits */
886 mempool_t
*write_io_dummy
; /* Dummy pages */
889 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
890 int cur_cp_pack
; /* remain current cp pack */
891 spinlock_t cp_lock
; /* for flag in ckpt */
892 struct inode
*meta_inode
; /* cache meta blocks */
893 struct mutex cp_mutex
; /* checkpoint procedure lock */
894 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
895 struct rw_semaphore node_write
; /* locking node writes */
896 struct rw_semaphore node_change
; /* locking node change */
897 wait_queue_head_t cp_wait
;
898 unsigned long last_time
[MAX_TIME
]; /* to store time in jiffies */
899 long interval_time
[MAX_TIME
]; /* to store thresholds */
901 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
903 /* for orphan inode, use 0'th array */
904 unsigned int max_orphans
; /* max orphan inodes */
906 /* for inode management */
907 struct list_head inode_list
[NR_INODE_TYPE
]; /* dirty inode list */
908 spinlock_t inode_lock
[NR_INODE_TYPE
]; /* for dirty inode list lock */
910 /* for extent tree cache */
911 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
912 struct mutex extent_tree_lock
; /* locking extent radix tree */
913 struct list_head extent_list
; /* lru list for shrinker */
914 spinlock_t extent_lock
; /* locking extent lru list */
915 atomic_t total_ext_tree
; /* extent tree count */
916 struct list_head zombie_list
; /* extent zombie tree list */
917 atomic_t total_zombie_tree
; /* extent zombie tree count */
918 atomic_t total_ext_node
; /* extent info count */
920 /* basic filesystem units */
921 unsigned int log_sectors_per_block
; /* log2 sectors per block */
922 unsigned int log_blocksize
; /* log2 block size */
923 unsigned int blocksize
; /* block size */
924 unsigned int root_ino_num
; /* root inode number*/
925 unsigned int node_ino_num
; /* node inode number*/
926 unsigned int meta_ino_num
; /* meta inode number*/
927 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
928 unsigned int blocks_per_seg
; /* blocks per segment */
929 unsigned int segs_per_sec
; /* segments per section */
930 unsigned int secs_per_zone
; /* sections per zone */
931 unsigned int total_sections
; /* total section count */
932 unsigned int total_node_count
; /* total node block count */
933 unsigned int total_valid_node_count
; /* valid node block count */
934 loff_t max_file_blocks
; /* max block index of file */
935 int active_logs
; /* # of active logs */
936 int dir_level
; /* directory level */
938 block_t user_block_count
; /* # of user blocks */
939 block_t total_valid_block_count
; /* # of valid blocks */
940 block_t discard_blks
; /* discard command candidats */
941 block_t last_valid_block_count
; /* for recovery */
942 u32 s_next_generation
; /* for NFS support */
944 /* # of pages, see count_type */
945 atomic_t nr_pages
[NR_COUNT_TYPE
];
946 /* # of allocated blocks */
947 struct percpu_counter alloc_valid_block_count
;
949 /* writeback control */
950 atomic_t wb_sync_req
; /* count # of WB_SYNC threads */
952 /* valid inode count */
953 struct percpu_counter total_valid_inode_count
;
955 struct f2fs_mount_info mount_opt
; /* mount options */
957 /* for cleaning operations */
958 struct mutex gc_mutex
; /* mutex for GC */
959 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
960 unsigned int cur_victim_sec
; /* current victim section num */
962 /* threshold for converting bg victims for fg */
965 /* maximum # of trials to find a victim segment for SSR and GC */
966 unsigned int max_victim_search
;
969 * for stat information.
970 * one is for the LFS mode, and the other is for the SSR mode.
972 #ifdef CONFIG_F2FS_STAT_FS
973 struct f2fs_stat_info
*stat_info
; /* FS status information */
974 unsigned int segment_count
[2]; /* # of allocated segments */
975 unsigned int block_count
[2]; /* # of allocated blocks */
976 atomic_t inplace_count
; /* # of inplace update */
977 atomic64_t total_hit_ext
; /* # of lookup extent cache */
978 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
979 atomic64_t read_hit_largest
; /* # of hit largest extent node */
980 atomic64_t read_hit_cached
; /* # of hit cached extent node */
981 atomic_t inline_xattr
; /* # of inline_xattr inodes */
982 atomic_t inline_inode
; /* # of inline_data inodes */
983 atomic_t inline_dir
; /* # of inline_dentry inodes */
984 atomic_t aw_cnt
; /* # of atomic writes */
985 atomic_t vw_cnt
; /* # of volatile writes */
986 atomic_t max_aw_cnt
; /* max # of atomic writes */
987 atomic_t max_vw_cnt
; /* max # of volatile writes */
988 int bg_gc
; /* background gc calls */
989 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
991 spinlock_t stat_lock
; /* lock for stat operations */
993 /* For sysfs suppport */
994 struct kobject s_kobj
;
995 struct completion s_kobj_unregister
;
997 /* For shrinker support */
998 struct list_head s_list
;
999 int s_ndevs
; /* number of devices */
1000 struct f2fs_dev_info
*devs
; /* for device list */
1001 struct mutex umount_mutex
;
1002 unsigned int shrinker_run_no
;
1004 /* For write statistics */
1005 u64 sectors_written_start
;
1008 /* Reference to checksum algorithm driver via cryptoapi */
1009 struct crypto_shash
*s_chksum_driver
;
1011 /* For fault injection */
1012 #ifdef CONFIG_F2FS_FAULT_INJECTION
1013 struct f2fs_fault_info fault_info
;
1017 #ifdef CONFIG_F2FS_FAULT_INJECTION
1018 #define f2fs_show_injection_info(type) \
1019 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1020 KERN_INFO, fault_name[type], \
1021 __func__, __builtin_return_address(0))
1022 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
1024 struct f2fs_fault_info
*ffi
= &sbi
->fault_info
;
1026 if (!ffi
->inject_rate
)
1029 if (!IS_FAULT_SET(ffi
, type
))
1032 atomic_inc(&ffi
->inject_ops
);
1033 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
1034 atomic_set(&ffi
->inject_ops
, 0);
1041 /* For write statistics. Suppose sector size is 512 bytes,
1042 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1044 #define BD_PART_WRITTEN(s) \
1045 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1046 (s)->sectors_written_start) >> 1)
1048 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
1050 sbi
->last_time
[type
] = jiffies
;
1053 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
1055 struct timespec ts
= {sbi
->interval_time
[type
], 0};
1056 unsigned long interval
= timespec_to_jiffies(&ts
);
1058 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
1061 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
1063 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
1064 struct request_queue
*q
= bdev_get_queue(bdev
);
1065 struct request_list
*rl
= &q
->root_rl
;
1067 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
1070 return f2fs_time_over(sbi
, REQ_TIME
);
1076 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1077 unsigned int length
)
1079 SHASH_DESC_ON_STACK(shash
, sbi
->s_chksum_driver
);
1080 u32
*ctx
= (u32
*)shash_desc_ctx(shash
);
1084 shash
->tfm
= sbi
->s_chksum_driver
;
1086 *ctx
= F2FS_SUPER_MAGIC
;
1088 err
= crypto_shash_update(shash
, address
, length
);
1096 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1097 void *buf
, size_t buf_size
)
1099 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1102 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1104 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1107 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1109 return sb
->s_fs_info
;
1112 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1114 return F2FS_SB(inode
->i_sb
);
1117 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1119 return F2FS_I_SB(mapping
->host
);
1122 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1124 return F2FS_M_SB(page
->mapping
);
1127 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1129 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1132 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1134 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1137 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1139 return (struct f2fs_node
*)page_address(page
);
1142 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1144 return &((struct f2fs_node
*)page_address(page
))->i
;
1147 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1149 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1152 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1154 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1157 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1159 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1162 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1164 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1167 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1169 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1172 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1174 return sbi
->meta_inode
->i_mapping
;
1177 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1179 return sbi
->node_inode
->i_mapping
;
1182 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1184 return test_bit(type
, &sbi
->s_flag
);
1187 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1189 set_bit(type
, &sbi
->s_flag
);
1192 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1194 clear_bit(type
, &sbi
->s_flag
);
1197 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1199 return le64_to_cpu(cp
->checkpoint_ver
);
1202 static inline __u64
cur_cp_crc(struct f2fs_checkpoint
*cp
)
1204 size_t crc_offset
= le32_to_cpu(cp
->checksum_offset
);
1205 return le32_to_cpu(*((__le32
*)((unsigned char *)cp
+ crc_offset
)));
1208 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1210 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1212 return ckpt_flags
& f
;
1215 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1217 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1220 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1222 unsigned int ckpt_flags
;
1224 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1226 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1229 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1231 spin_lock(&sbi
->cp_lock
);
1232 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1233 spin_unlock(&sbi
->cp_lock
);
1236 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1238 unsigned int ckpt_flags
;
1240 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1242 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1245 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1247 spin_lock(&sbi
->cp_lock
);
1248 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1249 spin_unlock(&sbi
->cp_lock
);
1252 static inline void disable_nat_bits(struct f2fs_sb_info
*sbi
, bool lock
)
1254 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
1257 spin_lock(&sbi
->cp_lock
);
1258 __clear_ckpt_flags(F2FS_CKPT(sbi
), CP_NAT_BITS_FLAG
);
1259 kfree(NM_I(sbi
)->nat_bits
);
1260 NM_I(sbi
)->nat_bits
= NULL
;
1262 spin_unlock(&sbi
->cp_lock
);
1265 static inline bool enabled_nat_bits(struct f2fs_sb_info
*sbi
,
1266 struct cp_control
*cpc
)
1268 bool set
= is_set_ckpt_flags(sbi
, CP_NAT_BITS_FLAG
);
1270 return (cpc
) ? (cpc
->reason
& CP_UMOUNT
) && set
: set
;
1273 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1275 down_read(&sbi
->cp_rwsem
);
1278 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1280 up_read(&sbi
->cp_rwsem
);
1283 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1285 down_write(&sbi
->cp_rwsem
);
1288 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1290 up_write(&sbi
->cp_rwsem
);
1293 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1295 int reason
= CP_SYNC
;
1297 if (test_opt(sbi
, FASTBOOT
))
1298 reason
= CP_FASTBOOT
;
1299 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1304 static inline bool __remain_node_summaries(int reason
)
1306 return (reason
& (CP_UMOUNT
| CP_FASTBOOT
));
1309 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1311 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1312 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1316 * Check whether the given nid is within node id range.
1318 static inline int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
)
1320 if (unlikely(nid
< F2FS_ROOT_INO(sbi
)))
1322 if (unlikely(nid
>= NM_I(sbi
)->max_nid
))
1327 #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
1330 * Check whether the inode has blocks or not
1332 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1334 if (F2FS_I(inode
)->i_xattr_nid
)
1335 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
+ 1;
1337 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
;
1340 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1342 return ofs
== XATTR_NODE_OFFSET
;
1345 static inline void f2fs_i_blocks_write(struct inode
*, blkcnt_t
, bool);
1346 static inline bool inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1347 struct inode
*inode
, blkcnt_t
*count
)
1351 #ifdef CONFIG_F2FS_FAULT_INJECTION
1352 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1353 f2fs_show_injection_info(FAULT_BLOCK
);
1358 * let's increase this in prior to actual block count change in order
1359 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1361 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1363 spin_lock(&sbi
->stat_lock
);
1364 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1365 if (unlikely(sbi
->total_valid_block_count
> sbi
->user_block_count
)) {
1366 diff
= sbi
->total_valid_block_count
- sbi
->user_block_count
;
1368 sbi
->total_valid_block_count
= sbi
->user_block_count
;
1370 spin_unlock(&sbi
->stat_lock
);
1371 percpu_counter_sub(&sbi
->alloc_valid_block_count
, diff
);
1375 spin_unlock(&sbi
->stat_lock
);
1377 f2fs_i_blocks_write(inode
, *count
, true);
1381 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1382 struct inode
*inode
,
1385 spin_lock(&sbi
->stat_lock
);
1386 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1387 f2fs_bug_on(sbi
, inode
->i_blocks
< count
);
1388 sbi
->total_valid_block_count
-= (block_t
)count
;
1389 spin_unlock(&sbi
->stat_lock
);
1390 f2fs_i_blocks_write(inode
, count
, false);
1393 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1395 atomic_inc(&sbi
->nr_pages
[count_type
]);
1397 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1398 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1401 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1404 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1406 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1407 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1408 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1411 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1413 atomic_dec(&sbi
->nr_pages
[count_type
]);
1416 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1418 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1419 !S_ISLNK(inode
->i_mode
))
1422 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1423 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1424 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1427 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1429 return atomic_read(&sbi
->nr_pages
[count_type
]);
1432 static inline int get_dirty_pages(struct inode
*inode
)
1434 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1437 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1439 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1440 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1441 sbi
->log_blocks_per_seg
;
1443 return segs
/ sbi
->segs_per_sec
;
1446 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1448 return sbi
->total_valid_block_count
;
1451 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1453 return sbi
->discard_blks
;
1456 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1458 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1460 /* return NAT or SIT bitmap */
1461 if (flag
== NAT_BITMAP
)
1462 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1463 else if (flag
== SIT_BITMAP
)
1464 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1469 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1471 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1474 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1476 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1479 if (__cp_payload(sbi
) > 0) {
1480 if (flag
== NAT_BITMAP
)
1481 return &ckpt
->sit_nat_version_bitmap
;
1483 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1485 offset
= (flag
== NAT_BITMAP
) ?
1486 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1487 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1491 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1493 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1495 if (sbi
->cur_cp_pack
== 2)
1496 start_addr
+= sbi
->blocks_per_seg
;
1500 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1502 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1504 if (sbi
->cur_cp_pack
== 1)
1505 start_addr
+= sbi
->blocks_per_seg
;
1509 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1511 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1514 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1516 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1519 static inline bool inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1520 struct inode
*inode
)
1522 block_t valid_block_count
;
1523 unsigned int valid_node_count
;
1525 spin_lock(&sbi
->stat_lock
);
1527 valid_block_count
= sbi
->total_valid_block_count
+ 1;
1528 if (unlikely(valid_block_count
> sbi
->user_block_count
)) {
1529 spin_unlock(&sbi
->stat_lock
);
1533 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1534 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1535 spin_unlock(&sbi
->stat_lock
);
1540 f2fs_i_blocks_write(inode
, 1, true);
1542 sbi
->total_valid_node_count
++;
1543 sbi
->total_valid_block_count
++;
1544 spin_unlock(&sbi
->stat_lock
);
1546 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1550 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1551 struct inode
*inode
)
1553 spin_lock(&sbi
->stat_lock
);
1555 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1556 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1557 f2fs_bug_on(sbi
, !inode
->i_blocks
);
1559 f2fs_i_blocks_write(inode
, 1, false);
1560 sbi
->total_valid_node_count
--;
1561 sbi
->total_valid_block_count
--;
1563 spin_unlock(&sbi
->stat_lock
);
1566 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1568 return sbi
->total_valid_node_count
;
1571 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1573 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1576 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1578 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1581 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1583 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1586 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1587 pgoff_t index
, bool for_write
)
1589 #ifdef CONFIG_F2FS_FAULT_INJECTION
1590 struct page
*page
= find_lock_page(mapping
, index
);
1595 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
)) {
1596 f2fs_show_injection_info(FAULT_PAGE_ALLOC
);
1601 return grab_cache_page(mapping
, index
);
1602 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1605 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1607 char *src_kaddr
= kmap(src
);
1608 char *dst_kaddr
= kmap(dst
);
1610 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1615 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1621 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1627 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1630 f2fs_put_page(dn
->node_page
, 1);
1631 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1632 f2fs_put_page(dn
->inode_page
, 0);
1633 dn
->node_page
= NULL
;
1634 dn
->inode_page
= NULL
;
1637 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
1640 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
1643 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
1648 entry
= kmem_cache_alloc(cachep
, flags
);
1650 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
1654 static inline struct bio
*f2fs_bio_alloc(int npages
)
1658 /* No failure on bio allocation */
1659 bio
= bio_alloc(GFP_NOIO
, npages
);
1661 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
1665 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
1666 unsigned long index
, void *item
)
1668 while (radix_tree_insert(root
, index
, item
))
1672 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1674 static inline bool IS_INODE(struct page
*page
)
1676 struct f2fs_node
*p
= F2FS_NODE(page
);
1678 return RAW_IS_INODE(p
);
1681 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
1683 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
1686 static inline block_t
datablock_addr(struct page
*node_page
,
1687 unsigned int offset
)
1689 struct f2fs_node
*raw_node
;
1692 raw_node
= F2FS_NODE(node_page
);
1693 addr_array
= blkaddr_in_node(raw_node
);
1694 return le32_to_cpu(addr_array
[offset
]);
1697 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
1702 mask
= 1 << (7 - (nr
& 0x07));
1703 return mask
& *addr
;
1706 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
1711 mask
= 1 << (7 - (nr
& 0x07));
1715 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
1720 mask
= 1 << (7 - (nr
& 0x07));
1724 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
1730 mask
= 1 << (7 - (nr
& 0x07));
1736 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
1742 mask
= 1 << (7 - (nr
& 0x07));
1748 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
1753 mask
= 1 << (7 - (nr
& 0x07));
1757 /* used for f2fs_inode_info->flags */
1759 FI_NEW_INODE
, /* indicate newly allocated inode */
1760 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
1761 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
1762 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
1763 FI_INC_LINK
, /* need to increment i_nlink */
1764 FI_ACL_MODE
, /* indicate acl mode */
1765 FI_NO_ALLOC
, /* should not allocate any blocks */
1766 FI_FREE_NID
, /* free allocated nide */
1767 FI_NO_EXTENT
, /* not to use the extent cache */
1768 FI_INLINE_XATTR
, /* used for inline xattr */
1769 FI_INLINE_DATA
, /* used for inline data*/
1770 FI_INLINE_DENTRY
, /* used for inline dentry */
1771 FI_APPEND_WRITE
, /* inode has appended data */
1772 FI_UPDATE_WRITE
, /* inode has in-place-update data */
1773 FI_NEED_IPU
, /* used for ipu per file */
1774 FI_ATOMIC_FILE
, /* indicate atomic file */
1775 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
1776 FI_VOLATILE_FILE
, /* indicate volatile file */
1777 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
1778 FI_DROP_CACHE
, /* drop dirty page cache */
1779 FI_DATA_EXIST
, /* indicate data exists */
1780 FI_INLINE_DOTS
, /* indicate inline dot dentries */
1781 FI_DO_DEFRAG
, /* indicate defragment is running */
1782 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
1783 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
1784 FI_HOT_DATA
, /* indicate file is hot */
1787 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
1791 case FI_INLINE_XATTR
:
1792 case FI_INLINE_DATA
:
1793 case FI_INLINE_DENTRY
:
1797 case FI_INLINE_DOTS
:
1798 f2fs_mark_inode_dirty_sync(inode
, true);
1802 static inline void set_inode_flag(struct inode
*inode
, int flag
)
1804 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
1805 set_bit(flag
, &F2FS_I(inode
)->flags
);
1806 __mark_inode_dirty_flag(inode
, flag
, true);
1809 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
1811 return test_bit(flag
, &F2FS_I(inode
)->flags
);
1814 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
1816 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
1817 clear_bit(flag
, &F2FS_I(inode
)->flags
);
1818 __mark_inode_dirty_flag(inode
, flag
, false);
1821 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
1823 F2FS_I(inode
)->i_acl_mode
= mode
;
1824 set_inode_flag(inode
, FI_ACL_MODE
);
1825 f2fs_mark_inode_dirty_sync(inode
, false);
1828 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
1834 f2fs_mark_inode_dirty_sync(inode
, true);
1837 static inline void f2fs_i_blocks_write(struct inode
*inode
,
1838 blkcnt_t diff
, bool add
)
1840 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1841 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1843 inode
->i_blocks
= add
? inode
->i_blocks
+ diff
:
1844 inode
->i_blocks
- diff
;
1845 f2fs_mark_inode_dirty_sync(inode
, true);
1846 if (clean
|| recover
)
1847 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1850 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
1852 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1853 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1855 if (i_size_read(inode
) == i_size
)
1858 i_size_write(inode
, i_size
);
1859 f2fs_mark_inode_dirty_sync(inode
, true);
1860 if (clean
|| recover
)
1861 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1864 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
1866 F2FS_I(inode
)->i_current_depth
= depth
;
1867 f2fs_mark_inode_dirty_sync(inode
, true);
1870 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
1872 F2FS_I(inode
)->i_xattr_nid
= xnid
;
1873 f2fs_mark_inode_dirty_sync(inode
, true);
1876 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
1878 F2FS_I(inode
)->i_pino
= pino
;
1879 f2fs_mark_inode_dirty_sync(inode
, true);
1882 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
1884 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
1886 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
1887 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
1888 if (ri
->i_inline
& F2FS_INLINE_DATA
)
1889 set_bit(FI_INLINE_DATA
, &fi
->flags
);
1890 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
1891 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
1892 if (ri
->i_inline
& F2FS_DATA_EXIST
)
1893 set_bit(FI_DATA_EXIST
, &fi
->flags
);
1894 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
1895 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
1898 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
1902 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
1903 ri
->i_inline
|= F2FS_INLINE_XATTR
;
1904 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
1905 ri
->i_inline
|= F2FS_INLINE_DATA
;
1906 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
1907 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
1908 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
1909 ri
->i_inline
|= F2FS_DATA_EXIST
;
1910 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
1911 ri
->i_inline
|= F2FS_INLINE_DOTS
;
1914 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
1916 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
1919 static inline unsigned int addrs_per_inode(struct inode
*inode
)
1921 if (f2fs_has_inline_xattr(inode
))
1922 return DEF_ADDRS_PER_INODE
- F2FS_INLINE_XATTR_ADDRS
;
1923 return DEF_ADDRS_PER_INODE
;
1926 static inline void *inline_xattr_addr(struct page
*page
)
1928 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1930 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
1931 F2FS_INLINE_XATTR_ADDRS
]);
1934 static inline int inline_xattr_size(struct inode
*inode
)
1936 if (f2fs_has_inline_xattr(inode
))
1937 return F2FS_INLINE_XATTR_ADDRS
<< 2;
1942 static inline int f2fs_has_inline_data(struct inode
*inode
)
1944 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
1947 static inline int f2fs_exist_data(struct inode
*inode
)
1949 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
1952 static inline int f2fs_has_inline_dots(struct inode
*inode
)
1954 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
1957 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
1959 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
1962 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
1964 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
1967 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
1969 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
1972 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
1974 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
1977 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
1979 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
1982 static inline void *inline_data_addr(struct page
*page
)
1984 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1986 return (void *)&(ri
->i_addr
[1]);
1989 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
1991 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
1994 static inline void f2fs_dentry_kunmap(struct inode
*dir
, struct page
*page
)
1996 if (!f2fs_has_inline_dentry(dir
))
2000 static inline int is_file(struct inode
*inode
, int type
)
2002 return F2FS_I(inode
)->i_advise
& type
;
2005 static inline void set_file(struct inode
*inode
, int type
)
2007 F2FS_I(inode
)->i_advise
|= type
;
2008 f2fs_mark_inode_dirty_sync(inode
, true);
2011 static inline void clear_file(struct inode
*inode
, int type
)
2013 F2FS_I(inode
)->i_advise
&= ~type
;
2014 f2fs_mark_inode_dirty_sync(inode
, true);
2017 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
2020 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2023 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
2024 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
2025 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
2028 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
2029 file_keep_isize(inode
) ||
2030 i_size_read(inode
) & PAGE_MASK
)
2032 return F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
2035 static inline int f2fs_readonly(struct super_block
*sb
)
2037 return sb
->s_flags
& MS_RDONLY
;
2040 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
2042 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
2045 static inline bool is_dot_dotdot(const struct qstr
*str
)
2047 if (str
->len
== 1 && str
->name
[0] == '.')
2050 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
2056 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
2058 if (!test_opt(F2FS_I_SB(inode
), EXTENT_CACHE
) ||
2059 is_inode_flag_set(inode
, FI_NO_EXTENT
))
2062 return S_ISREG(inode
->i_mode
);
2065 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
2066 size_t size
, gfp_t flags
)
2068 #ifdef CONFIG_F2FS_FAULT_INJECTION
2069 if (time_to_inject(sbi
, FAULT_KMALLOC
)) {
2070 f2fs_show_injection_info(FAULT_KMALLOC
);
2074 return kmalloc(size
, flags
);
2077 #define get_inode_mode(i) \
2078 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2079 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2084 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2085 void truncate_data_blocks(struct dnode_of_data
*dn
);
2086 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2087 int f2fs_truncate(struct inode
*inode
);
2088 int f2fs_getattr(const struct path
*path
, struct kstat
*stat
,
2089 u32 request_mask
, unsigned int flags
);
2090 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2091 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2092 int truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2093 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2094 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2099 void f2fs_set_inode_flags(struct inode
*inode
);
2100 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2101 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2102 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2103 int update_inode(struct inode
*inode
, struct page
*node_page
);
2104 int update_inode_page(struct inode
*inode
);
2105 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2106 void f2fs_evict_inode(struct inode
*inode
);
2107 void handle_failed_inode(struct inode
*inode
);
2112 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2117 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2118 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2119 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2120 f2fs_hash_t namehash
, int *max_slots
,
2121 struct f2fs_dentry_ptr
*d
);
2122 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2123 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2124 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2125 struct f2fs_dentry_ptr
*d
);
2126 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2127 const struct qstr
*new_name
,
2128 const struct qstr
*orig_name
, struct page
*dpage
);
2129 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2130 unsigned int current_depth
);
2131 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2132 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2133 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2134 struct fscrypt_name
*fname
, struct page
**res_page
);
2135 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2136 const struct qstr
*child
, struct page
**res_page
);
2137 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2138 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2139 struct page
**page
);
2140 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2141 struct page
*page
, struct inode
*inode
);
2142 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2143 const struct qstr
*name
, f2fs_hash_t name_hash
,
2144 unsigned int bit_pos
);
2145 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2146 const struct qstr
*orig_name
,
2147 struct inode
*inode
, nid_t ino
, umode_t mode
);
2148 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2149 struct inode
*inode
, nid_t ino
, umode_t mode
);
2150 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2151 struct inode
*inode
, nid_t ino
, umode_t mode
);
2152 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2153 struct inode
*dir
, struct inode
*inode
);
2154 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2155 bool f2fs_empty_dir(struct inode
*dir
);
2157 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2159 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2160 inode
, inode
->i_ino
, inode
->i_mode
);
2166 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2167 void f2fs_inode_synced(struct inode
*inode
);
2168 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2169 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2170 extern __printf(3, 4)
2171 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2172 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2177 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
,
2178 struct fscrypt_name
*fname
);
2183 struct dnode_of_data
;
2186 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2187 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2188 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2189 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2190 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2191 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2192 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2193 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2194 int truncate_xattr_node(struct inode
*inode
, struct page
*page
);
2195 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2196 int remove_inode_page(struct inode
*inode
);
2197 struct page
*new_inode_page(struct inode
*inode
);
2198 struct page
*new_node_page(struct dnode_of_data
*dn
,
2199 unsigned int ofs
, struct page
*ipage
);
2200 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2201 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2202 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2203 void move_node_page(struct page
*node_page
, int gc_type
);
2204 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2205 struct writeback_control
*wbc
, bool atomic
);
2206 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
);
2207 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
, bool mount
);
2208 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2209 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2210 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2211 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2212 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2213 int recover_xattr_data(struct inode
*inode
, struct page
*page
,
2215 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2216 int restore_node_summary(struct f2fs_sb_info
*sbi
,
2217 unsigned int segno
, struct f2fs_summary_block
*sum
);
2218 void flush_nat_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2219 int build_node_manager(struct f2fs_sb_info
*sbi
);
2220 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2221 int __init
create_node_manager_caches(void);
2222 void destroy_node_manager_caches(void);
2227 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2228 void drop_inmem_pages(struct inode
*inode
);
2229 void drop_inmem_page(struct inode
*inode
, struct page
*page
);
2230 int commit_inmem_pages(struct inode
*inode
);
2231 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2232 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2233 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
);
2234 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2235 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2236 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2237 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2238 void refresh_sit_entry(struct f2fs_sb_info
*sbi
, block_t old
, block_t
new);
2239 void f2fs_wait_discard_bios(struct f2fs_sb_info
*sbi
);
2240 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2241 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2242 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2243 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2244 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2245 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2246 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2247 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2248 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2249 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2250 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2251 int rewrite_data_page(struct f2fs_io_info
*fio
);
2252 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2253 block_t old_blkaddr
, block_t new_blkaddr
,
2254 bool recover_curseg
, bool recover_newaddr
);
2255 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2256 block_t old_addr
, block_t new_addr
,
2257 unsigned char version
, bool recover_curseg
,
2258 bool recover_newaddr
);
2259 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2260 block_t old_blkaddr
, block_t
*new_blkaddr
,
2261 struct f2fs_summary
*sum
, int type
);
2262 void f2fs_wait_on_page_writeback(struct page
*page
,
2263 enum page_type type
, bool ordered
);
2264 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info
*sbi
,
2266 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2267 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2268 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2269 unsigned int val
, int alloc
);
2270 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2271 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2272 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2273 int __init
create_segment_manager_caches(void);
2274 void destroy_segment_manager_caches(void);
2279 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2280 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2281 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2282 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2283 bool is_valid_blkaddr(struct f2fs_sb_info
*sbi
, block_t blkaddr
, int type
);
2284 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2285 int type
, bool sync
);
2286 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2287 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2289 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2290 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2291 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2292 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2293 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2294 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2295 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2296 void add_orphan_inode(struct inode
*inode
);
2297 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2298 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2299 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2300 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2301 void remove_dirty_inode(struct inode
*inode
);
2302 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2303 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2304 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2305 int __init
create_checkpoint_caches(void);
2306 void destroy_checkpoint_caches(void);
2311 void f2fs_submit_merged_bio(struct f2fs_sb_info
*sbi
, enum page_type type
,
2313 void f2fs_submit_merged_bio_cond(struct f2fs_sb_info
*sbi
,
2314 struct inode
*inode
, nid_t ino
, pgoff_t idx
,
2315 enum page_type type
, int rw
);
2316 void f2fs_flush_merged_bios(struct f2fs_sb_info
*sbi
);
2317 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2318 int f2fs_submit_page_mbio(struct f2fs_io_info
*fio
);
2319 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2320 block_t blk_addr
, struct bio
*bio
);
2321 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2322 void set_data_blkaddr(struct dnode_of_data
*dn
);
2323 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2324 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2325 int reserve_new_block(struct dnode_of_data
*dn
);
2326 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2327 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2328 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2329 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2330 int op_flags
, bool for_write
);
2331 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2332 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2334 struct page
*get_new_data_page(struct inode
*inode
,
2335 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2336 int do_write_data_page(struct f2fs_io_info
*fio
);
2337 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2338 int create
, int flag
);
2339 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2340 u64 start
, u64 len
);
2341 void f2fs_set_page_dirty_nobuffers(struct page
*page
);
2342 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2343 unsigned int length
);
2344 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2345 #ifdef CONFIG_MIGRATION
2346 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2347 struct page
*page
, enum migrate_mode mode
);
2353 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2354 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2355 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2356 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
,
2357 unsigned int segno
);
2358 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2363 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2364 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2369 #ifdef CONFIG_F2FS_STAT_FS
2370 struct f2fs_stat_info
{
2371 struct list_head stat_list
;
2372 struct f2fs_sb_info
*sbi
;
2373 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2374 int main_area_segs
, main_area_sections
, main_area_zones
;
2375 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2376 unsigned long long hit_total
, total_ext
;
2377 int ext_tree
, zombie_tree
, ext_node
;
2378 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_data
, ndirty_imeta
;
2380 unsigned int ndirty_dirs
, ndirty_files
, ndirty_all
;
2381 int nats
, dirty_nats
, sits
, dirty_sits
;
2382 int free_nids
, avail_nids
, alloc_nids
;
2383 int total_count
, utilization
;
2384 int bg_gc
, nr_wb_cp_data
, nr_wb_data
;
2385 int nr_flushing
, nr_flushed
, nr_discarding
, nr_discarded
;
2387 unsigned int undiscard_blks
;
2388 int inline_xattr
, inline_inode
, inline_dir
, append
, update
, orphans
;
2389 int aw_cnt
, max_aw_cnt
, vw_cnt
, max_vw_cnt
;
2390 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2391 unsigned int bimodal
, avg_vblocks
;
2392 int util_free
, util_valid
, util_invalid
;
2393 int rsvd_segs
, overp_segs
;
2394 int dirty_count
, node_pages
, meta_pages
;
2395 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2396 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2397 int bg_node_segs
, bg_data_segs
;
2398 int tot_blks
, data_blks
, node_blks
;
2399 int bg_data_blks
, bg_node_blks
;
2400 int curseg
[NR_CURSEG_TYPE
];
2401 int cursec
[NR_CURSEG_TYPE
];
2402 int curzone
[NR_CURSEG_TYPE
];
2404 unsigned int segment_count
[2];
2405 unsigned int block_count
[2];
2406 unsigned int inplace_count
;
2407 unsigned long long base_mem
, cache_mem
, page_mem
;
2410 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
2412 return (struct f2fs_stat_info
*)sbi
->stat_info
;
2415 #define stat_inc_cp_count(si) ((si)->cp_count++)
2416 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2417 #define stat_inc_call_count(si) ((si)->call_count++)
2418 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2419 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2420 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2421 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2422 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2423 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2424 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2425 #define stat_inc_inline_xattr(inode) \
2427 if (f2fs_has_inline_xattr(inode)) \
2428 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2430 #define stat_dec_inline_xattr(inode) \
2432 if (f2fs_has_inline_xattr(inode)) \
2433 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2435 #define stat_inc_inline_inode(inode) \
2437 if (f2fs_has_inline_data(inode)) \
2438 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2440 #define stat_dec_inline_inode(inode) \
2442 if (f2fs_has_inline_data(inode)) \
2443 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2445 #define stat_inc_inline_dir(inode) \
2447 if (f2fs_has_inline_dentry(inode)) \
2448 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2450 #define stat_dec_inline_dir(inode) \
2452 if (f2fs_has_inline_dentry(inode)) \
2453 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2455 #define stat_inc_seg_type(sbi, curseg) \
2456 ((sbi)->segment_count[(curseg)->alloc_type]++)
2457 #define stat_inc_block_count(sbi, curseg) \
2458 ((sbi)->block_count[(curseg)->alloc_type]++)
2459 #define stat_inc_inplace_blocks(sbi) \
2460 (atomic_inc(&(sbi)->inplace_count))
2461 #define stat_inc_atomic_write(inode) \
2462 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2463 #define stat_dec_atomic_write(inode) \
2464 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2465 #define stat_update_max_atomic_write(inode) \
2467 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2468 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2470 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2472 #define stat_inc_volatile_write(inode) \
2473 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2474 #define stat_dec_volatile_write(inode) \
2475 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2476 #define stat_update_max_volatile_write(inode) \
2478 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2479 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2481 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2483 #define stat_inc_seg_count(sbi, type, gc_type) \
2485 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2487 if ((type) == SUM_TYPE_DATA) { \
2489 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2492 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2496 #define stat_inc_tot_blk_count(si, blks) \
2497 ((si)->tot_blks += (blks))
2499 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2501 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2502 stat_inc_tot_blk_count(si, blks); \
2503 si->data_blks += (blks); \
2504 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2507 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2509 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2510 stat_inc_tot_blk_count(si, blks); \
2511 si->node_blks += (blks); \
2512 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2515 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
2516 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
2517 int __init
f2fs_create_root_stats(void);
2518 void f2fs_destroy_root_stats(void);
2520 #define stat_inc_cp_count(si) do { } while (0)
2521 #define stat_inc_bg_cp_count(si) do { } while (0)
2522 #define stat_inc_call_count(si) do { } while (0)
2523 #define stat_inc_bggc_count(si) do { } while (0)
2524 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
2525 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
2526 #define stat_inc_total_hit(sb) do { } while (0)
2527 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
2528 #define stat_inc_largest_node_hit(sbi) do { } while (0)
2529 #define stat_inc_cached_node_hit(sbi) do { } while (0)
2530 #define stat_inc_inline_xattr(inode) do { } while (0)
2531 #define stat_dec_inline_xattr(inode) do { } while (0)
2532 #define stat_inc_inline_inode(inode) do { } while (0)
2533 #define stat_dec_inline_inode(inode) do { } while (0)
2534 #define stat_inc_inline_dir(inode) do { } while (0)
2535 #define stat_dec_inline_dir(inode) do { } while (0)
2536 #define stat_inc_atomic_write(inode) do { } while (0)
2537 #define stat_dec_atomic_write(inode) do { } while (0)
2538 #define stat_update_max_atomic_write(inode) do { } while (0)
2539 #define stat_inc_volatile_write(inode) do { } while (0)
2540 #define stat_dec_volatile_write(inode) do { } while (0)
2541 #define stat_update_max_volatile_write(inode) do { } while (0)
2542 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
2543 #define stat_inc_block_count(sbi, curseg) do { } while (0)
2544 #define stat_inc_inplace_blocks(sbi) do { } while (0)
2545 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2546 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
2547 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2548 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
2550 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
2551 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
2552 static inline int __init
f2fs_create_root_stats(void) { return 0; }
2553 static inline void f2fs_destroy_root_stats(void) { }
2556 extern const struct file_operations f2fs_dir_operations
;
2557 extern const struct file_operations f2fs_file_operations
;
2558 extern const struct inode_operations f2fs_file_inode_operations
;
2559 extern const struct address_space_operations f2fs_dblock_aops
;
2560 extern const struct address_space_operations f2fs_node_aops
;
2561 extern const struct address_space_operations f2fs_meta_aops
;
2562 extern const struct inode_operations f2fs_dir_inode_operations
;
2563 extern const struct inode_operations f2fs_symlink_inode_operations
;
2564 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
2565 extern const struct inode_operations f2fs_special_inode_operations
;
2566 extern struct kmem_cache
*inode_entry_slab
;
2571 bool f2fs_may_inline_data(struct inode
*inode
);
2572 bool f2fs_may_inline_dentry(struct inode
*inode
);
2573 void read_inline_data(struct page
*page
, struct page
*ipage
);
2574 void truncate_inline_inode(struct inode
*inode
, struct page
*ipage
, u64 from
);
2575 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
2576 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
2577 int f2fs_convert_inline_inode(struct inode
*inode
);
2578 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
2579 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
2580 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
2581 struct fscrypt_name
*fname
, struct page
**res_page
);
2582 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
2583 struct page
*ipage
);
2584 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
2585 const struct qstr
*orig_name
,
2586 struct inode
*inode
, nid_t ino
, umode_t mode
);
2587 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2588 struct inode
*dir
, struct inode
*inode
);
2589 bool f2fs_empty_inline_dir(struct inode
*dir
);
2590 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
2591 struct fscrypt_str
*fstr
);
2592 int f2fs_inline_data_fiemap(struct inode
*inode
,
2593 struct fiemap_extent_info
*fieinfo
,
2594 __u64 start
, __u64 len
);
2599 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
2600 struct shrink_control
*sc
);
2601 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
2602 struct shrink_control
*sc
);
2603 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
2604 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
2609 struct rb_entry
*__lookup_rb_tree(struct rb_root
*root
,
2610 struct rb_entry
*cached_re
, unsigned int ofs
);
2611 struct rb_node
**__lookup_rb_tree_for_insert(struct f2fs_sb_info
*sbi
,
2612 struct rb_root
*root
, struct rb_node
**parent
,
2614 struct rb_entry
*__lookup_rb_tree_ret(struct rb_root
*root
,
2615 struct rb_entry
*cached_re
, unsigned int ofs
,
2616 struct rb_entry
**prev_entry
, struct rb_entry
**next_entry
,
2617 struct rb_node
***insert_p
, struct rb_node
**insert_parent
,
2619 bool __check_rb_tree_consistence(struct f2fs_sb_info
*sbi
,
2620 struct rb_root
*root
);
2621 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2622 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
2623 void f2fs_drop_extent_tree(struct inode
*inode
);
2624 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
2625 void f2fs_destroy_extent_tree(struct inode
*inode
);
2626 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
2627 struct extent_info
*ei
);
2628 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
2629 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
2630 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
2631 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
2632 int __init
create_extent_cache(void);
2633 void destroy_extent_cache(void);
2638 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
2640 return file_is_encrypt(inode
);
2643 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
2645 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2646 file_set_encrypt(inode
);
2650 static inline bool f2fs_bio_encrypted(struct bio
*bio
)
2652 return bio
->bi_private
!= NULL
;
2655 static inline int f2fs_sb_has_crypto(struct super_block
*sb
)
2657 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_ENCRYPT
);
2660 static inline int f2fs_sb_mounted_blkzoned(struct super_block
*sb
)
2662 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_BLKZONED
);
2665 #ifdef CONFIG_BLK_DEV_ZONED
2666 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
2667 struct block_device
*bdev
, block_t blkaddr
)
2669 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
2672 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
2673 if (FDEV(i
).bdev
== bdev
)
2674 return FDEV(i
).blkz_type
[zno
];
2679 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
2681 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
2683 return blk_queue_discard(q
) || f2fs_sb_mounted_blkzoned(sbi
->sb
);
2686 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
2688 clear_opt(sbi
, ADAPTIVE
);
2689 clear_opt(sbi
, LFS
);
2692 case F2FS_MOUNT_ADAPTIVE
:
2693 set_opt(sbi
, ADAPTIVE
);
2695 case F2FS_MOUNT_LFS
:
2701 static inline bool f2fs_may_encrypt(struct inode
*inode
)
2703 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2704 umode_t mode
= inode
->i_mode
;
2706 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));