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)
306 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
307 struct f2fs_gc_range)
309 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
310 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
311 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
314 * should be same as XFS_IOC_GOINGDOWN.
315 * Flags for going down operation used by FS_IOC_GOINGDOWN
317 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
318 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
319 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
320 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
321 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
323 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
325 * ioctl commands in 32 bit emulation
327 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
328 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
329 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
332 struct f2fs_gc_range
{
338 struct f2fs_defragment
{
343 struct f2fs_move_range
{
344 u32 dst_fd
; /* destination fd */
345 u64 pos_in
; /* start position in src_fd */
346 u64 pos_out
; /* start position in dst_fd */
347 u64 len
; /* size to move */
350 struct f2fs_flush_device
{
351 u32 dev_num
; /* device number to flush */
352 u32 segments
; /* # of segments to flush */
356 * For INODE and NODE manager
358 /* for directory operations */
359 struct f2fs_dentry_ptr
{
362 struct f2fs_dir_entry
*dentry
;
363 __u8 (*filename
)[F2FS_SLOT_LEN
];
367 static inline void make_dentry_ptr_block(struct inode
*inode
,
368 struct f2fs_dentry_ptr
*d
, struct f2fs_dentry_block
*t
)
371 d
->max
= NR_DENTRY_IN_BLOCK
;
372 d
->bitmap
= &t
->dentry_bitmap
;
373 d
->dentry
= t
->dentry
;
374 d
->filename
= t
->filename
;
377 static inline void make_dentry_ptr_inline(struct inode
*inode
,
378 struct f2fs_dentry_ptr
*d
, struct f2fs_inline_dentry
*t
)
381 d
->max
= NR_INLINE_DENTRY
;
382 d
->bitmap
= &t
->dentry_bitmap
;
383 d
->dentry
= t
->dentry
;
384 d
->filename
= t
->filename
;
388 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
389 * as its node offset to distinguish from index node blocks.
390 * But some bits are used to mark the node block.
392 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
395 ALLOC_NODE
, /* allocate a new node page if needed */
396 LOOKUP_NODE
, /* look up a node without readahead */
398 * look up a node with readahead called
403 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
405 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
407 /* vector size for gang look-up from extent cache that consists of radix tree */
408 #define EXT_TREE_VEC_SIZE 64
410 /* for in-memory extent cache entry */
411 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
413 /* number of extent info in extent cache we try to shrink */
414 #define EXTENT_CACHE_SHRINK_NUMBER 128
417 struct rb_node rb_node
; /* rb node located in rb-tree */
418 unsigned int ofs
; /* start offset of the entry */
419 unsigned int len
; /* length of the entry */
423 unsigned int fofs
; /* start offset in a file */
424 unsigned int len
; /* length of the extent */
425 u32 blk
; /* start block address of the extent */
429 struct rb_node rb_node
;
436 struct extent_info ei
; /* extent info */
439 struct list_head list
; /* node in global extent list of sbi */
440 struct extent_tree
*et
; /* extent tree pointer */
444 nid_t ino
; /* inode number */
445 struct rb_root root
; /* root of extent info rb-tree */
446 struct extent_node
*cached_en
; /* recently accessed extent node */
447 struct extent_info largest
; /* largested extent info */
448 struct list_head list
; /* to be used by sbi->zombie_list */
449 rwlock_t lock
; /* protect extent info rb-tree */
450 atomic_t node_cnt
; /* # of extent node in rb-tree*/
454 * This structure is taken from ext4_map_blocks.
456 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
458 #define F2FS_MAP_NEW (1 << BH_New)
459 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
460 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
461 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
464 struct f2fs_map_blocks
{
468 unsigned int m_flags
;
469 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
472 /* for flag in get_data_block */
473 #define F2FS_GET_BLOCK_READ 0
474 #define F2FS_GET_BLOCK_DIO 1
475 #define F2FS_GET_BLOCK_FIEMAP 2
476 #define F2FS_GET_BLOCK_BMAP 3
477 #define F2FS_GET_BLOCK_PRE_DIO 4
478 #define F2FS_GET_BLOCK_PRE_AIO 5
481 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
483 #define FADVISE_COLD_BIT 0x01
484 #define FADVISE_LOST_PINO_BIT 0x02
485 #define FADVISE_ENCRYPT_BIT 0x04
486 #define FADVISE_ENC_NAME_BIT 0x08
487 #define FADVISE_KEEP_SIZE_BIT 0x10
489 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
490 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
491 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
492 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
493 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
494 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
495 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
496 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
497 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
498 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
499 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
500 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
501 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
503 #define DEF_DIR_LEVEL 0
505 struct f2fs_inode_info
{
506 struct inode vfs_inode
; /* serve a vfs inode */
507 unsigned long i_flags
; /* keep an inode flags for ioctl */
508 unsigned char i_advise
; /* use to give file attribute hints */
509 unsigned char i_dir_level
; /* use for dentry level for large dir */
510 unsigned int i_current_depth
; /* use only in directory structure */
511 unsigned int i_pino
; /* parent inode number */
512 umode_t i_acl_mode
; /* keep file acl mode temporarily */
514 /* Use below internally in f2fs*/
515 unsigned long flags
; /* use to pass per-file flags */
516 struct rw_semaphore i_sem
; /* protect fi info */
517 atomic_t dirty_pages
; /* # of dirty pages */
518 f2fs_hash_t chash
; /* hash value of given file name */
519 unsigned int clevel
; /* maximum level of given file name */
520 struct task_struct
*task
; /* lookup and create consistency */
521 nid_t i_xattr_nid
; /* node id that contains xattrs */
522 loff_t last_disk_size
; /* lastly written file size */
524 struct list_head dirty_list
; /* dirty list for dirs and files */
525 struct list_head gdirty_list
; /* linked in global dirty list */
526 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
527 struct mutex inmem_lock
; /* lock for inmemory pages */
528 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
529 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
530 struct rw_semaphore i_mmap_sem
;
533 static inline void get_extent_info(struct extent_info
*ext
,
534 struct f2fs_extent
*i_ext
)
536 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
537 ext
->blk
= le32_to_cpu(i_ext
->blk
);
538 ext
->len
= le32_to_cpu(i_ext
->len
);
541 static inline void set_raw_extent(struct extent_info
*ext
,
542 struct f2fs_extent
*i_ext
)
544 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
545 i_ext
->blk
= cpu_to_le32(ext
->blk
);
546 i_ext
->len
= cpu_to_le32(ext
->len
);
549 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
550 u32 blk
, unsigned int len
)
557 static inline bool __is_discard_mergeable(struct discard_info
*back
,
558 struct discard_info
*front
)
560 return back
->lstart
+ back
->len
== front
->lstart
;
563 static inline bool __is_discard_back_mergeable(struct discard_info
*cur
,
564 struct discard_info
*back
)
566 return __is_discard_mergeable(back
, cur
);
569 static inline bool __is_discard_front_mergeable(struct discard_info
*cur
,
570 struct discard_info
*front
)
572 return __is_discard_mergeable(cur
, front
);
575 static inline bool __is_extent_mergeable(struct extent_info
*back
,
576 struct extent_info
*front
)
578 return (back
->fofs
+ back
->len
== front
->fofs
&&
579 back
->blk
+ back
->len
== front
->blk
);
582 static inline bool __is_back_mergeable(struct extent_info
*cur
,
583 struct extent_info
*back
)
585 return __is_extent_mergeable(back
, cur
);
588 static inline bool __is_front_mergeable(struct extent_info
*cur
,
589 struct extent_info
*front
)
591 return __is_extent_mergeable(cur
, front
);
594 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
595 static inline void __try_update_largest_extent(struct inode
*inode
,
596 struct extent_tree
*et
, struct extent_node
*en
)
598 if (en
->ei
.len
> et
->largest
.len
) {
599 et
->largest
= en
->ei
;
600 f2fs_mark_inode_dirty_sync(inode
, true);
610 struct f2fs_nm_info
{
611 block_t nat_blkaddr
; /* base disk address of NAT */
612 nid_t max_nid
; /* maximum possible node ids */
613 nid_t available_nids
; /* # of available node ids */
614 nid_t next_scan_nid
; /* the next nid to be scanned */
615 unsigned int ram_thresh
; /* control the memory footprint */
616 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
617 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
619 /* NAT cache management */
620 struct radix_tree_root nat_root
;/* root of the nat entry cache */
621 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
622 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
623 struct list_head nat_entries
; /* cached nat entry list (clean) */
624 unsigned int nat_cnt
; /* the # of cached nat entries */
625 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
626 unsigned int nat_blocks
; /* # of nat blocks */
628 /* free node ids management */
629 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
630 struct list_head nid_list
[MAX_NID_LIST
];/* lists for free nids */
631 unsigned int nid_cnt
[MAX_NID_LIST
]; /* the number of free node id */
632 spinlock_t nid_list_lock
; /* protect nid lists ops */
633 struct mutex build_lock
; /* lock for build free nids */
634 unsigned char (*free_nid_bitmap
)[NAT_ENTRY_BITMAP_SIZE
];
635 unsigned char *nat_block_bitmap
;
636 unsigned short *free_nid_count
; /* free nid count of NAT block */
639 char *nat_bitmap
; /* NAT bitmap pointer */
641 unsigned int nat_bits_blocks
; /* # of nat bits blocks */
642 unsigned char *nat_bits
; /* NAT bits blocks */
643 unsigned char *full_nat_bits
; /* full NAT pages */
644 unsigned char *empty_nat_bits
; /* empty NAT pages */
645 #ifdef CONFIG_F2FS_CHECK_FS
646 char *nat_bitmap_mir
; /* NAT bitmap mirror */
648 int bitmap_size
; /* bitmap size */
652 * this structure is used as one of function parameters.
653 * all the information are dedicated to a given direct node block determined
654 * by the data offset in a file.
656 struct dnode_of_data
{
657 struct inode
*inode
; /* vfs inode pointer */
658 struct page
*inode_page
; /* its inode page, NULL is possible */
659 struct page
*node_page
; /* cached direct node page */
660 nid_t nid
; /* node id of the direct node block */
661 unsigned int ofs_in_node
; /* data offset in the node page */
662 bool inode_page_locked
; /* inode page is locked or not */
663 bool node_changed
; /* is node block changed */
664 char cur_level
; /* level of hole node page */
665 char max_level
; /* level of current page located */
666 block_t data_blkaddr
; /* block address of the node block */
669 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
670 struct page
*ipage
, struct page
*npage
, nid_t nid
)
672 memset(dn
, 0, sizeof(*dn
));
674 dn
->inode_page
= ipage
;
675 dn
->node_page
= npage
;
682 * By default, there are 6 active log areas across the whole main area.
683 * When considering hot and cold data separation to reduce cleaning overhead,
684 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
686 * In the current design, you should not change the numbers intentionally.
687 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
688 * logs individually according to the underlying devices. (default: 6)
689 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
690 * data and 8 for node logs.
692 #define NR_CURSEG_DATA_TYPE (3)
693 #define NR_CURSEG_NODE_TYPE (3)
694 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
697 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
698 CURSEG_WARM_DATA
, /* data blocks */
699 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
700 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
701 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
702 CURSEG_COLD_NODE
, /* indirect node blocks */
707 struct completion wait
;
708 struct llist_node llnode
;
712 struct flush_cmd_control
{
713 struct task_struct
*f2fs_issue_flush
; /* flush thread */
714 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
715 atomic_t issued_flush
; /* # of issued flushes */
716 atomic_t issing_flush
; /* # of issing flushes */
717 struct llist_head issue_list
; /* list for command issue */
718 struct llist_node
*dispatch_list
; /* list for command dispatch */
721 struct f2fs_sm_info
{
722 struct sit_info
*sit_info
; /* whole segment information */
723 struct free_segmap_info
*free_info
; /* free segment information */
724 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
725 struct curseg_info
*curseg_array
; /* active segment information */
727 block_t seg0_blkaddr
; /* block address of 0'th segment */
728 block_t main_blkaddr
; /* start block address of main area */
729 block_t ssa_blkaddr
; /* start block address of SSA area */
731 unsigned int segment_count
; /* total # of segments */
732 unsigned int main_segments
; /* # of segments in main area */
733 unsigned int reserved_segments
; /* # of reserved segments */
734 unsigned int ovp_segments
; /* # of overprovision segments */
736 /* a threshold to reclaim prefree segments */
737 unsigned int rec_prefree_segments
;
739 /* for batched trimming */
740 unsigned int trim_sections
; /* # of sections to trim */
742 struct list_head sit_entry_set
; /* sit entry set list */
744 unsigned int ipu_policy
; /* in-place-update policy */
745 unsigned int min_ipu_util
; /* in-place-update threshold */
746 unsigned int min_fsync_blocks
; /* threshold for fsync */
747 unsigned int min_hot_blocks
; /* threshold for hot block allocation */
749 /* for flush command control */
750 struct flush_cmd_control
*fcc_info
;
752 /* for discard command control */
753 struct discard_cmd_control
*dcc_info
;
760 * COUNT_TYPE for monitoring
762 * f2fs monitors the number of several block types such as on-writeback,
763 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
765 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
779 * The below are the page types of bios used in submit_bio().
780 * The available types are:
781 * DATA User data pages. It operates as async mode.
782 * NODE Node pages. It operates as async mode.
783 * META FS metadata pages such as SIT, NAT, CP.
784 * NR_PAGE_TYPE The number of page types.
785 * META_FLUSH Make sure the previous pages are written
786 * with waiting the bio's completion
787 * ... Only can be used with META.
789 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
796 INMEM
, /* the below types are used by tracepoints only. */
805 HOT
= 0, /* must be zero for meta bio */
811 enum need_lock_type
{
817 struct f2fs_io_info
{
818 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
819 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
820 enum temp_type temp
; /* contains HOT/WARM/COLD */
821 int op
; /* contains REQ_OP_ */
822 int op_flags
; /* req_flag_bits */
823 block_t new_blkaddr
; /* new block address to be written */
824 block_t old_blkaddr
; /* old block address before Cow */
825 struct page
*page
; /* page to be written */
826 struct page
*encrypted_page
; /* encrypted page */
827 struct list_head list
; /* serialize IOs */
828 bool submitted
; /* indicate IO submission */
829 int need_lock
; /* indicate we need to lock cp_rwsem */
830 bool in_list
; /* indicate fio is in io_list */
833 #define is_read_io(rw) ((rw) == READ)
834 struct f2fs_bio_info
{
835 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
836 struct bio
*bio
; /* bios to merge */
837 sector_t last_block_in_bio
; /* last block number */
838 struct f2fs_io_info fio
; /* store buffered io info. */
839 struct rw_semaphore io_rwsem
; /* blocking op for bio */
840 spinlock_t io_lock
; /* serialize DATA/NODE IOs */
841 struct list_head io_list
; /* track fios */
844 #define FDEV(i) (sbi->devs[i])
845 #define RDEV(i) (raw_super->devs[i])
846 struct f2fs_dev_info
{
847 struct block_device
*bdev
;
848 char path
[MAX_PATH_LEN
];
849 unsigned int total_segments
;
852 #ifdef CONFIG_BLK_DEV_ZONED
853 unsigned int nr_blkz
; /* Total number of zones */
854 u8
*blkz_type
; /* Array of zones type */
859 DIR_INODE
, /* for dirty dir inode */
860 FILE_INODE
, /* for dirty regular/symlink inode */
861 DIRTY_META
, /* for all dirtied inode metadata */
865 /* for inner inode cache management */
866 struct inode_management
{
867 struct radix_tree_root ino_root
; /* ino entry array */
868 spinlock_t ino_lock
; /* for ino entry lock */
869 struct list_head ino_list
; /* inode list head */
870 unsigned long ino_num
; /* number of entries */
873 /* For s_flag in struct f2fs_sb_info */
875 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
876 SBI_IS_CLOSE
, /* specify unmounting */
877 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
878 SBI_POR_DOING
, /* recovery is doing or not */
879 SBI_NEED_SB_WRITE
, /* need to recover superblock */
880 SBI_NEED_CP
, /* need to checkpoint */
889 struct f2fs_sb_info
{
890 struct super_block
*sb
; /* pointer to VFS super block */
891 struct proc_dir_entry
*s_proc
; /* proc entry */
892 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
893 int valid_super_block
; /* valid super block no */
894 unsigned long s_flag
; /* flags for sbi */
896 #ifdef CONFIG_BLK_DEV_ZONED
897 unsigned int blocks_per_blkz
; /* F2FS blocks per zone */
898 unsigned int log_blocks_per_blkz
; /* log2 F2FS blocks per zone */
901 /* for node-related operations */
902 struct f2fs_nm_info
*nm_info
; /* node manager */
903 struct inode
*node_inode
; /* cache node blocks */
905 /* for segment-related operations */
906 struct f2fs_sm_info
*sm_info
; /* segment manager */
908 /* for bio operations */
909 struct f2fs_bio_info
*write_io
[NR_PAGE_TYPE
]; /* for write bios */
910 struct mutex wio_mutex
[NR_PAGE_TYPE
- 1][NR_TEMP_TYPE
];
911 /* bio ordering for NODE/DATA */
912 int write_io_size_bits
; /* Write IO size bits */
913 mempool_t
*write_io_dummy
; /* Dummy pages */
916 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
917 int cur_cp_pack
; /* remain current cp pack */
918 spinlock_t cp_lock
; /* for flag in ckpt */
919 struct inode
*meta_inode
; /* cache meta blocks */
920 struct mutex cp_mutex
; /* checkpoint procedure lock */
921 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
922 struct rw_semaphore node_write
; /* locking node writes */
923 struct rw_semaphore node_change
; /* locking node change */
924 wait_queue_head_t cp_wait
;
925 unsigned long last_time
[MAX_TIME
]; /* to store time in jiffies */
926 long interval_time
[MAX_TIME
]; /* to store thresholds */
928 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
930 /* for orphan inode, use 0'th array */
931 unsigned int max_orphans
; /* max orphan inodes */
933 /* for inode management */
934 struct list_head inode_list
[NR_INODE_TYPE
]; /* dirty inode list */
935 spinlock_t inode_lock
[NR_INODE_TYPE
]; /* for dirty inode list lock */
937 /* for extent tree cache */
938 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
939 struct mutex extent_tree_lock
; /* locking extent radix tree */
940 struct list_head extent_list
; /* lru list for shrinker */
941 spinlock_t extent_lock
; /* locking extent lru list */
942 atomic_t total_ext_tree
; /* extent tree count */
943 struct list_head zombie_list
; /* extent zombie tree list */
944 atomic_t total_zombie_tree
; /* extent zombie tree count */
945 atomic_t total_ext_node
; /* extent info count */
947 /* basic filesystem units */
948 unsigned int log_sectors_per_block
; /* log2 sectors per block */
949 unsigned int log_blocksize
; /* log2 block size */
950 unsigned int blocksize
; /* block size */
951 unsigned int root_ino_num
; /* root inode number*/
952 unsigned int node_ino_num
; /* node inode number*/
953 unsigned int meta_ino_num
; /* meta inode number*/
954 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
955 unsigned int blocks_per_seg
; /* blocks per segment */
956 unsigned int segs_per_sec
; /* segments per section */
957 unsigned int secs_per_zone
; /* sections per zone */
958 unsigned int total_sections
; /* total section count */
959 unsigned int total_node_count
; /* total node block count */
960 unsigned int total_valid_node_count
; /* valid node block count */
961 loff_t max_file_blocks
; /* max block index of file */
962 int active_logs
; /* # of active logs */
963 int dir_level
; /* directory level */
965 block_t user_block_count
; /* # of user blocks */
966 block_t total_valid_block_count
; /* # of valid blocks */
967 block_t discard_blks
; /* discard command candidats */
968 block_t last_valid_block_count
; /* for recovery */
969 block_t reserved_blocks
; /* configurable reserved blocks */
971 u32 s_next_generation
; /* for NFS support */
973 /* # of pages, see count_type */
974 atomic_t nr_pages
[NR_COUNT_TYPE
];
975 /* # of allocated blocks */
976 struct percpu_counter alloc_valid_block_count
;
978 /* writeback control */
979 atomic_t wb_sync_req
; /* count # of WB_SYNC threads */
981 /* valid inode count */
982 struct percpu_counter total_valid_inode_count
;
984 struct f2fs_mount_info mount_opt
; /* mount options */
986 /* for cleaning operations */
987 struct mutex gc_mutex
; /* mutex for GC */
988 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
989 unsigned int cur_victim_sec
; /* current victim section num */
991 /* threshold for converting bg victims for fg */
994 /* maximum # of trials to find a victim segment for SSR and GC */
995 unsigned int max_victim_search
;
998 * for stat information.
999 * one is for the LFS mode, and the other is for the SSR mode.
1001 #ifdef CONFIG_F2FS_STAT_FS
1002 struct f2fs_stat_info
*stat_info
; /* FS status information */
1003 unsigned int segment_count
[2]; /* # of allocated segments */
1004 unsigned int block_count
[2]; /* # of allocated blocks */
1005 atomic_t inplace_count
; /* # of inplace update */
1006 atomic64_t total_hit_ext
; /* # of lookup extent cache */
1007 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
1008 atomic64_t read_hit_largest
; /* # of hit largest extent node */
1009 atomic64_t read_hit_cached
; /* # of hit cached extent node */
1010 atomic_t inline_xattr
; /* # of inline_xattr inodes */
1011 atomic_t inline_inode
; /* # of inline_data inodes */
1012 atomic_t inline_dir
; /* # of inline_dentry inodes */
1013 atomic_t aw_cnt
; /* # of atomic writes */
1014 atomic_t vw_cnt
; /* # of volatile writes */
1015 atomic_t max_aw_cnt
; /* max # of atomic writes */
1016 atomic_t max_vw_cnt
; /* max # of volatile writes */
1017 int bg_gc
; /* background gc calls */
1018 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
1020 spinlock_t stat_lock
; /* lock for stat operations */
1022 /* For sysfs suppport */
1023 struct kobject s_kobj
;
1024 struct completion s_kobj_unregister
;
1026 /* For shrinker support */
1027 struct list_head s_list
;
1028 int s_ndevs
; /* number of devices */
1029 struct f2fs_dev_info
*devs
; /* for device list */
1030 struct mutex umount_mutex
;
1031 unsigned int shrinker_run_no
;
1033 /* For write statistics */
1034 u64 sectors_written_start
;
1037 /* Reference to checksum algorithm driver via cryptoapi */
1038 struct crypto_shash
*s_chksum_driver
;
1040 /* For fault injection */
1041 #ifdef CONFIG_F2FS_FAULT_INJECTION
1042 struct f2fs_fault_info fault_info
;
1046 #ifdef CONFIG_F2FS_FAULT_INJECTION
1047 #define f2fs_show_injection_info(type) \
1048 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1049 KERN_INFO, fault_name[type], \
1050 __func__, __builtin_return_address(0))
1051 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
1053 struct f2fs_fault_info
*ffi
= &sbi
->fault_info
;
1055 if (!ffi
->inject_rate
)
1058 if (!IS_FAULT_SET(ffi
, type
))
1061 atomic_inc(&ffi
->inject_ops
);
1062 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
1063 atomic_set(&ffi
->inject_ops
, 0);
1070 /* For write statistics. Suppose sector size is 512 bytes,
1071 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1073 #define BD_PART_WRITTEN(s) \
1074 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1075 (s)->sectors_written_start) >> 1)
1077 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
1079 sbi
->last_time
[type
] = jiffies
;
1082 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
1084 struct timespec ts
= {sbi
->interval_time
[type
], 0};
1085 unsigned long interval
= timespec_to_jiffies(&ts
);
1087 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
1090 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
1092 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
1093 struct request_queue
*q
= bdev_get_queue(bdev
);
1094 struct request_list
*rl
= &q
->root_rl
;
1096 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
1099 return f2fs_time_over(sbi
, REQ_TIME
);
1105 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1106 unsigned int length
)
1108 SHASH_DESC_ON_STACK(shash
, sbi
->s_chksum_driver
);
1109 u32
*ctx
= (u32
*)shash_desc_ctx(shash
);
1112 shash
->tfm
= sbi
->s_chksum_driver
;
1114 *ctx
= F2FS_SUPER_MAGIC
;
1116 err
= crypto_shash_update(shash
, address
, length
);
1122 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1123 void *buf
, size_t buf_size
)
1125 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1128 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1130 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1133 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1135 return sb
->s_fs_info
;
1138 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1140 return F2FS_SB(inode
->i_sb
);
1143 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1145 return F2FS_I_SB(mapping
->host
);
1148 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1150 return F2FS_M_SB(page
->mapping
);
1153 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1155 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1158 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1160 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1163 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1165 return (struct f2fs_node
*)page_address(page
);
1168 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1170 return &((struct f2fs_node
*)page_address(page
))->i
;
1173 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1175 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1178 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1180 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1183 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1185 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1188 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1190 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1193 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1195 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1198 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1200 return sbi
->meta_inode
->i_mapping
;
1203 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1205 return sbi
->node_inode
->i_mapping
;
1208 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1210 return test_bit(type
, &sbi
->s_flag
);
1213 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1215 set_bit(type
, &sbi
->s_flag
);
1218 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1220 clear_bit(type
, &sbi
->s_flag
);
1223 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1225 return le64_to_cpu(cp
->checkpoint_ver
);
1228 static inline __u64
cur_cp_crc(struct f2fs_checkpoint
*cp
)
1230 size_t crc_offset
= le32_to_cpu(cp
->checksum_offset
);
1231 return le32_to_cpu(*((__le32
*)((unsigned char *)cp
+ crc_offset
)));
1234 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1236 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1238 return ckpt_flags
& f
;
1241 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1243 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1246 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1248 unsigned int ckpt_flags
;
1250 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1252 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1255 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1257 unsigned long flags
;
1259 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1260 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1261 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1264 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1266 unsigned int ckpt_flags
;
1268 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1270 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1273 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1275 unsigned long flags
;
1277 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1278 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1279 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1282 static inline void disable_nat_bits(struct f2fs_sb_info
*sbi
, bool lock
)
1284 unsigned long flags
;
1286 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
1289 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1290 __clear_ckpt_flags(F2FS_CKPT(sbi
), CP_NAT_BITS_FLAG
);
1291 kfree(NM_I(sbi
)->nat_bits
);
1292 NM_I(sbi
)->nat_bits
= NULL
;
1294 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1297 static inline bool enabled_nat_bits(struct f2fs_sb_info
*sbi
,
1298 struct cp_control
*cpc
)
1300 bool set
= is_set_ckpt_flags(sbi
, CP_NAT_BITS_FLAG
);
1302 return (cpc
) ? (cpc
->reason
& CP_UMOUNT
) && set
: set
;
1305 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1307 down_read(&sbi
->cp_rwsem
);
1310 static inline int f2fs_trylock_op(struct f2fs_sb_info
*sbi
)
1312 return down_read_trylock(&sbi
->cp_rwsem
);
1315 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1317 up_read(&sbi
->cp_rwsem
);
1320 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1322 down_write(&sbi
->cp_rwsem
);
1325 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1327 up_write(&sbi
->cp_rwsem
);
1330 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1332 int reason
= CP_SYNC
;
1334 if (test_opt(sbi
, FASTBOOT
))
1335 reason
= CP_FASTBOOT
;
1336 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1341 static inline bool __remain_node_summaries(int reason
)
1343 return (reason
& (CP_UMOUNT
| CP_FASTBOOT
));
1346 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1348 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1349 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1353 * Check whether the given nid is within node id range.
1355 static inline int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
)
1357 if (unlikely(nid
< F2FS_ROOT_INO(sbi
)))
1359 if (unlikely(nid
>= NM_I(sbi
)->max_nid
))
1365 * Check whether the inode has blocks or not
1367 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1369 block_t xattr_block
= F2FS_I(inode
)->i_xattr_nid
? 1 : 0;
1371 return (inode
->i_blocks
>> F2FS_LOG_SECTORS_PER_BLOCK
) > xattr_block
;
1374 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1376 return ofs
== XATTR_NODE_OFFSET
;
1379 static inline void f2fs_i_blocks_write(struct inode
*, block_t
, bool);
1380 static inline bool inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1381 struct inode
*inode
, blkcnt_t
*count
)
1384 block_t avail_user_block_count
;
1386 #ifdef CONFIG_F2FS_FAULT_INJECTION
1387 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1388 f2fs_show_injection_info(FAULT_BLOCK
);
1393 * let's increase this in prior to actual block count change in order
1394 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1396 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1398 spin_lock(&sbi
->stat_lock
);
1399 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1400 avail_user_block_count
= sbi
->user_block_count
- sbi
->reserved_blocks
;
1401 if (unlikely(sbi
->total_valid_block_count
> avail_user_block_count
)) {
1402 diff
= sbi
->total_valid_block_count
- avail_user_block_count
;
1404 sbi
->total_valid_block_count
= avail_user_block_count
;
1406 spin_unlock(&sbi
->stat_lock
);
1407 percpu_counter_sub(&sbi
->alloc_valid_block_count
, diff
);
1411 spin_unlock(&sbi
->stat_lock
);
1413 f2fs_i_blocks_write(inode
, *count
, true);
1417 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1418 struct inode
*inode
,
1421 blkcnt_t sectors
= count
<< F2FS_LOG_SECTORS_PER_BLOCK
;
1423 spin_lock(&sbi
->stat_lock
);
1424 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1425 f2fs_bug_on(sbi
, inode
->i_blocks
< sectors
);
1426 sbi
->total_valid_block_count
-= (block_t
)count
;
1427 spin_unlock(&sbi
->stat_lock
);
1428 f2fs_i_blocks_write(inode
, count
, false);
1431 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1433 atomic_inc(&sbi
->nr_pages
[count_type
]);
1435 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1436 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1439 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1442 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1444 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1445 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1446 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1449 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1451 atomic_dec(&sbi
->nr_pages
[count_type
]);
1454 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1456 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1457 !S_ISLNK(inode
->i_mode
))
1460 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1461 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1462 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1465 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1467 return atomic_read(&sbi
->nr_pages
[count_type
]);
1470 static inline int get_dirty_pages(struct inode
*inode
)
1472 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1475 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1477 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1478 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1479 sbi
->log_blocks_per_seg
;
1481 return segs
/ sbi
->segs_per_sec
;
1484 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1486 return sbi
->total_valid_block_count
;
1489 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1491 return sbi
->discard_blks
;
1494 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1496 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1498 /* return NAT or SIT bitmap */
1499 if (flag
== NAT_BITMAP
)
1500 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1501 else if (flag
== SIT_BITMAP
)
1502 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1507 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1509 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1512 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1514 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1517 if (__cp_payload(sbi
) > 0) {
1518 if (flag
== NAT_BITMAP
)
1519 return &ckpt
->sit_nat_version_bitmap
;
1521 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1523 offset
= (flag
== NAT_BITMAP
) ?
1524 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1525 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1529 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1531 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1533 if (sbi
->cur_cp_pack
== 2)
1534 start_addr
+= sbi
->blocks_per_seg
;
1538 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1540 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1542 if (sbi
->cur_cp_pack
== 1)
1543 start_addr
+= sbi
->blocks_per_seg
;
1547 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1549 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1552 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1554 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1557 static inline bool inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1558 struct inode
*inode
, bool is_inode
)
1560 block_t valid_block_count
;
1561 unsigned int valid_node_count
;
1563 spin_lock(&sbi
->stat_lock
);
1565 valid_block_count
= sbi
->total_valid_block_count
+ 1;
1566 if (unlikely(valid_block_count
+ sbi
->reserved_blocks
>
1567 sbi
->user_block_count
)) {
1568 spin_unlock(&sbi
->stat_lock
);
1572 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1573 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1574 spin_unlock(&sbi
->stat_lock
);
1580 f2fs_mark_inode_dirty_sync(inode
, true);
1582 f2fs_i_blocks_write(inode
, 1, true);
1585 sbi
->total_valid_node_count
++;
1586 sbi
->total_valid_block_count
++;
1587 spin_unlock(&sbi
->stat_lock
);
1589 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1593 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1594 struct inode
*inode
, bool is_inode
)
1596 spin_lock(&sbi
->stat_lock
);
1598 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1599 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1600 f2fs_bug_on(sbi
, !is_inode
&& !inode
->i_blocks
);
1603 f2fs_i_blocks_write(inode
, 1, false);
1604 sbi
->total_valid_node_count
--;
1605 sbi
->total_valid_block_count
--;
1607 spin_unlock(&sbi
->stat_lock
);
1610 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1612 return sbi
->total_valid_node_count
;
1615 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1617 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1620 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1622 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1625 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1627 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1630 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1631 pgoff_t index
, bool for_write
)
1633 #ifdef CONFIG_F2FS_FAULT_INJECTION
1634 struct page
*page
= find_lock_page(mapping
, index
);
1639 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
)) {
1640 f2fs_show_injection_info(FAULT_PAGE_ALLOC
);
1645 return grab_cache_page(mapping
, index
);
1646 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1649 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1651 char *src_kaddr
= kmap(src
);
1652 char *dst_kaddr
= kmap(dst
);
1654 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1659 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1665 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1671 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1674 f2fs_put_page(dn
->node_page
, 1);
1675 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1676 f2fs_put_page(dn
->inode_page
, 0);
1677 dn
->node_page
= NULL
;
1678 dn
->inode_page
= NULL
;
1681 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
1684 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
1687 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
1692 entry
= kmem_cache_alloc(cachep
, flags
);
1694 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
1698 static inline struct bio
*f2fs_bio_alloc(int npages
)
1702 /* No failure on bio allocation */
1703 bio
= bio_alloc(GFP_NOIO
, npages
);
1705 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
1709 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
1710 unsigned long index
, void *item
)
1712 while (radix_tree_insert(root
, index
, item
))
1716 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1718 static inline bool IS_INODE(struct page
*page
)
1720 struct f2fs_node
*p
= F2FS_NODE(page
);
1722 return RAW_IS_INODE(p
);
1725 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
1727 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
1730 static inline block_t
datablock_addr(struct page
*node_page
,
1731 unsigned int offset
)
1733 struct f2fs_node
*raw_node
;
1736 raw_node
= F2FS_NODE(node_page
);
1737 addr_array
= blkaddr_in_node(raw_node
);
1738 return le32_to_cpu(addr_array
[offset
]);
1741 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
1746 mask
= 1 << (7 - (nr
& 0x07));
1747 return mask
& *addr
;
1750 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
1755 mask
= 1 << (7 - (nr
& 0x07));
1759 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
1764 mask
= 1 << (7 - (nr
& 0x07));
1768 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
1774 mask
= 1 << (7 - (nr
& 0x07));
1780 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
1786 mask
= 1 << (7 - (nr
& 0x07));
1792 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
1797 mask
= 1 << (7 - (nr
& 0x07));
1801 /* used for f2fs_inode_info->flags */
1803 FI_NEW_INODE
, /* indicate newly allocated inode */
1804 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
1805 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
1806 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
1807 FI_INC_LINK
, /* need to increment i_nlink */
1808 FI_ACL_MODE
, /* indicate acl mode */
1809 FI_NO_ALLOC
, /* should not allocate any blocks */
1810 FI_FREE_NID
, /* free allocated nide */
1811 FI_NO_EXTENT
, /* not to use the extent cache */
1812 FI_INLINE_XATTR
, /* used for inline xattr */
1813 FI_INLINE_DATA
, /* used for inline data*/
1814 FI_INLINE_DENTRY
, /* used for inline dentry */
1815 FI_APPEND_WRITE
, /* inode has appended data */
1816 FI_UPDATE_WRITE
, /* inode has in-place-update data */
1817 FI_NEED_IPU
, /* used for ipu per file */
1818 FI_ATOMIC_FILE
, /* indicate atomic file */
1819 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
1820 FI_VOLATILE_FILE
, /* indicate volatile file */
1821 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
1822 FI_DROP_CACHE
, /* drop dirty page cache */
1823 FI_DATA_EXIST
, /* indicate data exists */
1824 FI_INLINE_DOTS
, /* indicate inline dot dentries */
1825 FI_DO_DEFRAG
, /* indicate defragment is running */
1826 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
1827 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
1828 FI_HOT_DATA
, /* indicate file is hot */
1831 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
1835 case FI_INLINE_XATTR
:
1836 case FI_INLINE_DATA
:
1837 case FI_INLINE_DENTRY
:
1841 case FI_INLINE_DOTS
:
1842 f2fs_mark_inode_dirty_sync(inode
, true);
1846 static inline void set_inode_flag(struct inode
*inode
, int flag
)
1848 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
1849 set_bit(flag
, &F2FS_I(inode
)->flags
);
1850 __mark_inode_dirty_flag(inode
, flag
, true);
1853 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
1855 return test_bit(flag
, &F2FS_I(inode
)->flags
);
1858 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
1860 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
1861 clear_bit(flag
, &F2FS_I(inode
)->flags
);
1862 __mark_inode_dirty_flag(inode
, flag
, false);
1865 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
1867 F2FS_I(inode
)->i_acl_mode
= mode
;
1868 set_inode_flag(inode
, FI_ACL_MODE
);
1869 f2fs_mark_inode_dirty_sync(inode
, false);
1872 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
1878 f2fs_mark_inode_dirty_sync(inode
, true);
1881 static inline void f2fs_i_blocks_write(struct inode
*inode
,
1882 block_t diff
, bool add
)
1884 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1885 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1886 blkcnt_t sectors
= diff
<< F2FS_LOG_SECTORS_PER_BLOCK
;
1888 inode
->i_blocks
= add
? inode
->i_blocks
+ sectors
:
1889 inode
->i_blocks
- sectors
;
1890 f2fs_mark_inode_dirty_sync(inode
, true);
1891 if (clean
|| recover
)
1892 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1895 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
1897 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
1898 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
1900 if (i_size_read(inode
) == i_size
)
1903 i_size_write(inode
, i_size
);
1904 f2fs_mark_inode_dirty_sync(inode
, true);
1905 if (clean
|| recover
)
1906 set_inode_flag(inode
, FI_AUTO_RECOVER
);
1909 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
1911 F2FS_I(inode
)->i_current_depth
= depth
;
1912 f2fs_mark_inode_dirty_sync(inode
, true);
1915 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
1917 F2FS_I(inode
)->i_xattr_nid
= xnid
;
1918 f2fs_mark_inode_dirty_sync(inode
, true);
1921 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
1923 F2FS_I(inode
)->i_pino
= pino
;
1924 f2fs_mark_inode_dirty_sync(inode
, true);
1927 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
1929 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
1931 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
1932 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
1933 if (ri
->i_inline
& F2FS_INLINE_DATA
)
1934 set_bit(FI_INLINE_DATA
, &fi
->flags
);
1935 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
1936 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
1937 if (ri
->i_inline
& F2FS_DATA_EXIST
)
1938 set_bit(FI_DATA_EXIST
, &fi
->flags
);
1939 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
1940 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
1943 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
1947 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
1948 ri
->i_inline
|= F2FS_INLINE_XATTR
;
1949 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
1950 ri
->i_inline
|= F2FS_INLINE_DATA
;
1951 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
1952 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
1953 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
1954 ri
->i_inline
|= F2FS_DATA_EXIST
;
1955 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
1956 ri
->i_inline
|= F2FS_INLINE_DOTS
;
1959 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
1961 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
1964 static inline unsigned int addrs_per_inode(struct inode
*inode
)
1966 if (f2fs_has_inline_xattr(inode
))
1967 return DEF_ADDRS_PER_INODE
- F2FS_INLINE_XATTR_ADDRS
;
1968 return DEF_ADDRS_PER_INODE
;
1971 static inline void *inline_xattr_addr(struct page
*page
)
1973 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1975 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
1976 F2FS_INLINE_XATTR_ADDRS
]);
1979 static inline int inline_xattr_size(struct inode
*inode
)
1981 if (f2fs_has_inline_xattr(inode
))
1982 return F2FS_INLINE_XATTR_ADDRS
<< 2;
1987 static inline int f2fs_has_inline_data(struct inode
*inode
)
1989 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
1992 static inline int f2fs_exist_data(struct inode
*inode
)
1994 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
1997 static inline int f2fs_has_inline_dots(struct inode
*inode
)
1999 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
2002 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
2004 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
2007 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
2009 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
2012 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
2014 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
2017 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
2019 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
2022 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
2024 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
2027 static inline void *inline_data_addr(struct page
*page
)
2029 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2031 return (void *)&(ri
->i_addr
[1]);
2034 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
2036 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
2039 static inline void f2fs_dentry_kunmap(struct inode
*dir
, struct page
*page
)
2041 if (!f2fs_has_inline_dentry(dir
))
2045 static inline int is_file(struct inode
*inode
, int type
)
2047 return F2FS_I(inode
)->i_advise
& type
;
2050 static inline void set_file(struct inode
*inode
, int type
)
2052 F2FS_I(inode
)->i_advise
|= type
;
2053 f2fs_mark_inode_dirty_sync(inode
, true);
2056 static inline void clear_file(struct inode
*inode
, int type
)
2058 F2FS_I(inode
)->i_advise
&= ~type
;
2059 f2fs_mark_inode_dirty_sync(inode
, true);
2062 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
2065 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2068 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
2069 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
2070 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
2073 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
2074 file_keep_isize(inode
) ||
2075 i_size_read(inode
) & PAGE_MASK
)
2077 return F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
2080 static inline int f2fs_readonly(struct super_block
*sb
)
2082 return sb
->s_flags
& MS_RDONLY
;
2085 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
2087 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
2090 static inline bool is_dot_dotdot(const struct qstr
*str
)
2092 if (str
->len
== 1 && str
->name
[0] == '.')
2095 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
2101 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
2103 if (!test_opt(F2FS_I_SB(inode
), EXTENT_CACHE
) ||
2104 is_inode_flag_set(inode
, FI_NO_EXTENT
))
2107 return S_ISREG(inode
->i_mode
);
2110 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
2111 size_t size
, gfp_t flags
)
2113 #ifdef CONFIG_F2FS_FAULT_INJECTION
2114 if (time_to_inject(sbi
, FAULT_KMALLOC
)) {
2115 f2fs_show_injection_info(FAULT_KMALLOC
);
2119 return kmalloc(size
, flags
);
2122 static inline void *f2fs_kvmalloc(size_t size
, gfp_t flags
)
2126 ret
= kmalloc(size
, flags
| __GFP_NOWARN
);
2128 ret
= __vmalloc(size
, flags
, PAGE_KERNEL
);
2132 static inline void *f2fs_kvzalloc(size_t size
, gfp_t flags
)
2136 ret
= kzalloc(size
, flags
| __GFP_NOWARN
);
2138 ret
= __vmalloc(size
, flags
| __GFP_ZERO
, PAGE_KERNEL
);
2142 #define get_inode_mode(i) \
2143 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2144 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2149 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2150 void truncate_data_blocks(struct dnode_of_data
*dn
);
2151 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2152 int f2fs_truncate(struct inode
*inode
);
2153 int f2fs_getattr(const struct path
*path
, struct kstat
*stat
,
2154 u32 request_mask
, unsigned int flags
);
2155 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2156 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2157 int truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2158 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2159 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2164 void f2fs_set_inode_flags(struct inode
*inode
);
2165 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2166 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2167 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2168 int update_inode(struct inode
*inode
, struct page
*node_page
);
2169 int update_inode_page(struct inode
*inode
);
2170 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2171 void f2fs_evict_inode(struct inode
*inode
);
2172 void handle_failed_inode(struct inode
*inode
);
2177 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2182 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2183 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2184 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2185 f2fs_hash_t namehash
, int *max_slots
,
2186 struct f2fs_dentry_ptr
*d
);
2187 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2188 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2189 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2190 struct f2fs_dentry_ptr
*d
);
2191 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2192 const struct qstr
*new_name
,
2193 const struct qstr
*orig_name
, struct page
*dpage
);
2194 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2195 unsigned int current_depth
);
2196 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2197 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2198 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2199 struct fscrypt_name
*fname
, struct page
**res_page
);
2200 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2201 const struct qstr
*child
, struct page
**res_page
);
2202 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2203 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2204 struct page
**page
);
2205 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2206 struct page
*page
, struct inode
*inode
);
2207 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2208 const struct qstr
*name
, f2fs_hash_t name_hash
,
2209 unsigned int bit_pos
);
2210 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2211 const struct qstr
*orig_name
,
2212 struct inode
*inode
, nid_t ino
, umode_t mode
);
2213 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2214 struct inode
*inode
, nid_t ino
, umode_t mode
);
2215 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2216 struct inode
*inode
, nid_t ino
, umode_t mode
);
2217 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2218 struct inode
*dir
, struct inode
*inode
);
2219 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2220 bool f2fs_empty_dir(struct inode
*dir
);
2222 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2224 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2225 inode
, inode
->i_ino
, inode
->i_mode
);
2231 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2232 void f2fs_inode_synced(struct inode
*inode
);
2233 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2234 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2235 extern __printf(3, 4)
2236 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2237 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2242 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
,
2243 struct fscrypt_name
*fname
);
2248 struct dnode_of_data
;
2251 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2252 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2253 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2254 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2255 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2256 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2257 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2258 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2259 int truncate_xattr_node(struct inode
*inode
, struct page
*page
);
2260 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2261 int remove_inode_page(struct inode
*inode
);
2262 struct page
*new_inode_page(struct inode
*inode
);
2263 struct page
*new_node_page(struct dnode_of_data
*dn
,
2264 unsigned int ofs
, struct page
*ipage
);
2265 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2266 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2267 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2268 void move_node_page(struct page
*node_page
, int gc_type
);
2269 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2270 struct writeback_control
*wbc
, bool atomic
);
2271 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
);
2272 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
, bool mount
);
2273 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2274 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2275 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2276 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2277 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2278 int recover_xattr_data(struct inode
*inode
, struct page
*page
,
2280 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2281 int restore_node_summary(struct f2fs_sb_info
*sbi
,
2282 unsigned int segno
, struct f2fs_summary_block
*sum
);
2283 void flush_nat_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2284 int build_node_manager(struct f2fs_sb_info
*sbi
);
2285 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2286 int __init
create_node_manager_caches(void);
2287 void destroy_node_manager_caches(void);
2292 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2293 void drop_inmem_pages(struct inode
*inode
);
2294 void drop_inmem_page(struct inode
*inode
, struct page
*page
);
2295 int commit_inmem_pages(struct inode
*inode
);
2296 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2297 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2298 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
);
2299 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2300 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2301 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2302 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2303 void refresh_sit_entry(struct f2fs_sb_info
*sbi
, block_t old
, block_t
new);
2304 void stop_discard_thread(struct f2fs_sb_info
*sbi
);
2305 void f2fs_wait_discard_bios(struct f2fs_sb_info
*sbi
);
2306 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2307 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2308 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2309 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2310 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2311 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2312 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2313 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2314 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2315 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2316 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2317 int rewrite_data_page(struct f2fs_io_info
*fio
);
2318 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2319 block_t old_blkaddr
, block_t new_blkaddr
,
2320 bool recover_curseg
, bool recover_newaddr
);
2321 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2322 block_t old_addr
, block_t new_addr
,
2323 unsigned char version
, bool recover_curseg
,
2324 bool recover_newaddr
);
2325 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2326 block_t old_blkaddr
, block_t
*new_blkaddr
,
2327 struct f2fs_summary
*sum
, int type
,
2328 struct f2fs_io_info
*fio
, bool add_list
);
2329 void f2fs_wait_on_page_writeback(struct page
*page
,
2330 enum page_type type
, bool ordered
);
2331 void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info
*sbi
,
2333 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2334 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2335 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2336 unsigned int val
, int alloc
);
2337 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2338 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2339 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2340 int __init
create_segment_manager_caches(void);
2341 void destroy_segment_manager_caches(void);
2346 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2347 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2348 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2349 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2350 bool is_valid_blkaddr(struct f2fs_sb_info
*sbi
, block_t blkaddr
, int type
);
2351 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2352 int type
, bool sync
);
2353 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2354 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2356 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2357 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2358 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2359 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2360 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2361 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2362 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2363 void add_orphan_inode(struct inode
*inode
);
2364 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2365 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2366 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2367 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2368 void remove_dirty_inode(struct inode
*inode
);
2369 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2370 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2371 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2372 int __init
create_checkpoint_caches(void);
2373 void destroy_checkpoint_caches(void);
2378 void f2fs_submit_merged_write(struct f2fs_sb_info
*sbi
, enum page_type type
);
2379 void f2fs_submit_merged_write_cond(struct f2fs_sb_info
*sbi
,
2380 struct inode
*inode
, nid_t ino
, pgoff_t idx
,
2381 enum page_type type
);
2382 void f2fs_flush_merged_writes(struct f2fs_sb_info
*sbi
);
2383 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2384 int f2fs_submit_page_write(struct f2fs_io_info
*fio
);
2385 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2386 block_t blk_addr
, struct bio
*bio
);
2387 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2388 void set_data_blkaddr(struct dnode_of_data
*dn
);
2389 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2390 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2391 int reserve_new_block(struct dnode_of_data
*dn
);
2392 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2393 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2394 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2395 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2396 int op_flags
, bool for_write
);
2397 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2398 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2400 struct page
*get_new_data_page(struct inode
*inode
,
2401 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2402 int do_write_data_page(struct f2fs_io_info
*fio
);
2403 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2404 int create
, int flag
);
2405 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2406 u64 start
, u64 len
);
2407 void f2fs_set_page_dirty_nobuffers(struct page
*page
);
2408 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2409 unsigned int length
);
2410 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2411 #ifdef CONFIG_MIGRATION
2412 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2413 struct page
*page
, enum migrate_mode mode
);
2419 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2420 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2421 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2422 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
,
2423 unsigned int segno
);
2424 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2429 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2430 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2435 #ifdef CONFIG_F2FS_STAT_FS
2436 struct f2fs_stat_info
{
2437 struct list_head stat_list
;
2438 struct f2fs_sb_info
*sbi
;
2439 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2440 int main_area_segs
, main_area_sections
, main_area_zones
;
2441 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2442 unsigned long long hit_total
, total_ext
;
2443 int ext_tree
, zombie_tree
, ext_node
;
2444 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_data
, ndirty_imeta
;
2446 unsigned int ndirty_dirs
, ndirty_files
, ndirty_all
;
2447 int nats
, dirty_nats
, sits
, dirty_sits
;
2448 int free_nids
, avail_nids
, alloc_nids
;
2449 int total_count
, utilization
;
2450 int bg_gc
, nr_wb_cp_data
, nr_wb_data
;
2451 int nr_flushing
, nr_flushed
, nr_discarding
, nr_discarded
;
2453 unsigned int undiscard_blks
;
2454 int inline_xattr
, inline_inode
, inline_dir
, append
, update
, orphans
;
2455 int aw_cnt
, max_aw_cnt
, vw_cnt
, max_vw_cnt
;
2456 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2457 unsigned int bimodal
, avg_vblocks
;
2458 int util_free
, util_valid
, util_invalid
;
2459 int rsvd_segs
, overp_segs
;
2460 int dirty_count
, node_pages
, meta_pages
;
2461 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2462 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2463 int bg_node_segs
, bg_data_segs
;
2464 int tot_blks
, data_blks
, node_blks
;
2465 int bg_data_blks
, bg_node_blks
;
2466 int curseg
[NR_CURSEG_TYPE
];
2467 int cursec
[NR_CURSEG_TYPE
];
2468 int curzone
[NR_CURSEG_TYPE
];
2470 unsigned int segment_count
[2];
2471 unsigned int block_count
[2];
2472 unsigned int inplace_count
;
2473 unsigned long long base_mem
, cache_mem
, page_mem
;
2476 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
2478 return (struct f2fs_stat_info
*)sbi
->stat_info
;
2481 #define stat_inc_cp_count(si) ((si)->cp_count++)
2482 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2483 #define stat_inc_call_count(si) ((si)->call_count++)
2484 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2485 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2486 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2487 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2488 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2489 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2490 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2491 #define stat_inc_inline_xattr(inode) \
2493 if (f2fs_has_inline_xattr(inode)) \
2494 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2496 #define stat_dec_inline_xattr(inode) \
2498 if (f2fs_has_inline_xattr(inode)) \
2499 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2501 #define stat_inc_inline_inode(inode) \
2503 if (f2fs_has_inline_data(inode)) \
2504 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2506 #define stat_dec_inline_inode(inode) \
2508 if (f2fs_has_inline_data(inode)) \
2509 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2511 #define stat_inc_inline_dir(inode) \
2513 if (f2fs_has_inline_dentry(inode)) \
2514 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2516 #define stat_dec_inline_dir(inode) \
2518 if (f2fs_has_inline_dentry(inode)) \
2519 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2521 #define stat_inc_seg_type(sbi, curseg) \
2522 ((sbi)->segment_count[(curseg)->alloc_type]++)
2523 #define stat_inc_block_count(sbi, curseg) \
2524 ((sbi)->block_count[(curseg)->alloc_type]++)
2525 #define stat_inc_inplace_blocks(sbi) \
2526 (atomic_inc(&(sbi)->inplace_count))
2527 #define stat_inc_atomic_write(inode) \
2528 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2529 #define stat_dec_atomic_write(inode) \
2530 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2531 #define stat_update_max_atomic_write(inode) \
2533 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2534 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2536 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2538 #define stat_inc_volatile_write(inode) \
2539 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2540 #define stat_dec_volatile_write(inode) \
2541 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2542 #define stat_update_max_volatile_write(inode) \
2544 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2545 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2547 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2549 #define stat_inc_seg_count(sbi, type, gc_type) \
2551 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2553 if ((type) == SUM_TYPE_DATA) { \
2555 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2558 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2562 #define stat_inc_tot_blk_count(si, blks) \
2563 ((si)->tot_blks += (blks))
2565 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2567 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2568 stat_inc_tot_blk_count(si, blks); \
2569 si->data_blks += (blks); \
2570 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2573 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2575 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2576 stat_inc_tot_blk_count(si, blks); \
2577 si->node_blks += (blks); \
2578 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2581 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
2582 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
2583 int __init
f2fs_create_root_stats(void);
2584 void f2fs_destroy_root_stats(void);
2586 #define stat_inc_cp_count(si) do { } while (0)
2587 #define stat_inc_bg_cp_count(si) do { } while (0)
2588 #define stat_inc_call_count(si) do { } while (0)
2589 #define stat_inc_bggc_count(si) do { } while (0)
2590 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
2591 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
2592 #define stat_inc_total_hit(sb) do { } while (0)
2593 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
2594 #define stat_inc_largest_node_hit(sbi) do { } while (0)
2595 #define stat_inc_cached_node_hit(sbi) do { } while (0)
2596 #define stat_inc_inline_xattr(inode) do { } while (0)
2597 #define stat_dec_inline_xattr(inode) do { } while (0)
2598 #define stat_inc_inline_inode(inode) do { } while (0)
2599 #define stat_dec_inline_inode(inode) do { } while (0)
2600 #define stat_inc_inline_dir(inode) do { } while (0)
2601 #define stat_dec_inline_dir(inode) do { } while (0)
2602 #define stat_inc_atomic_write(inode) do { } while (0)
2603 #define stat_dec_atomic_write(inode) do { } while (0)
2604 #define stat_update_max_atomic_write(inode) do { } while (0)
2605 #define stat_inc_volatile_write(inode) do { } while (0)
2606 #define stat_dec_volatile_write(inode) do { } while (0)
2607 #define stat_update_max_volatile_write(inode) do { } while (0)
2608 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
2609 #define stat_inc_block_count(sbi, curseg) do { } while (0)
2610 #define stat_inc_inplace_blocks(sbi) do { } while (0)
2611 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2612 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
2613 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2614 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
2616 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
2617 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
2618 static inline int __init
f2fs_create_root_stats(void) { return 0; }
2619 static inline void f2fs_destroy_root_stats(void) { }
2622 extern const struct file_operations f2fs_dir_operations
;
2623 extern const struct file_operations f2fs_file_operations
;
2624 extern const struct inode_operations f2fs_file_inode_operations
;
2625 extern const struct address_space_operations f2fs_dblock_aops
;
2626 extern const struct address_space_operations f2fs_node_aops
;
2627 extern const struct address_space_operations f2fs_meta_aops
;
2628 extern const struct inode_operations f2fs_dir_inode_operations
;
2629 extern const struct inode_operations f2fs_symlink_inode_operations
;
2630 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
2631 extern const struct inode_operations f2fs_special_inode_operations
;
2632 extern struct kmem_cache
*inode_entry_slab
;
2637 bool f2fs_may_inline_data(struct inode
*inode
);
2638 bool f2fs_may_inline_dentry(struct inode
*inode
);
2639 void read_inline_data(struct page
*page
, struct page
*ipage
);
2640 void truncate_inline_inode(struct inode
*inode
, struct page
*ipage
, u64 from
);
2641 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
2642 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
2643 int f2fs_convert_inline_inode(struct inode
*inode
);
2644 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
2645 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
2646 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
2647 struct fscrypt_name
*fname
, struct page
**res_page
);
2648 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
2649 struct page
*ipage
);
2650 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
2651 const struct qstr
*orig_name
,
2652 struct inode
*inode
, nid_t ino
, umode_t mode
);
2653 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2654 struct inode
*dir
, struct inode
*inode
);
2655 bool f2fs_empty_inline_dir(struct inode
*dir
);
2656 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
2657 struct fscrypt_str
*fstr
);
2658 int f2fs_inline_data_fiemap(struct inode
*inode
,
2659 struct fiemap_extent_info
*fieinfo
,
2660 __u64 start
, __u64 len
);
2665 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
2666 struct shrink_control
*sc
);
2667 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
2668 struct shrink_control
*sc
);
2669 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
2670 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
2675 struct rb_entry
*__lookup_rb_tree(struct rb_root
*root
,
2676 struct rb_entry
*cached_re
, unsigned int ofs
);
2677 struct rb_node
**__lookup_rb_tree_for_insert(struct f2fs_sb_info
*sbi
,
2678 struct rb_root
*root
, struct rb_node
**parent
,
2680 struct rb_entry
*__lookup_rb_tree_ret(struct rb_root
*root
,
2681 struct rb_entry
*cached_re
, unsigned int ofs
,
2682 struct rb_entry
**prev_entry
, struct rb_entry
**next_entry
,
2683 struct rb_node
***insert_p
, struct rb_node
**insert_parent
,
2685 bool __check_rb_tree_consistence(struct f2fs_sb_info
*sbi
,
2686 struct rb_root
*root
);
2687 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2688 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
2689 void f2fs_drop_extent_tree(struct inode
*inode
);
2690 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
2691 void f2fs_destroy_extent_tree(struct inode
*inode
);
2692 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
2693 struct extent_info
*ei
);
2694 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
2695 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
2696 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
2697 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
2698 int __init
create_extent_cache(void);
2699 void destroy_extent_cache(void);
2704 int __init
f2fs_register_sysfs(void);
2705 void f2fs_unregister_sysfs(void);
2706 int f2fs_init_sysfs(struct f2fs_sb_info
*sbi
);
2707 void f2fs_exit_sysfs(struct f2fs_sb_info
*sbi
);
2712 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
2714 return file_is_encrypt(inode
);
2717 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
2719 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2720 file_set_encrypt(inode
);
2724 static inline bool f2fs_bio_encrypted(struct bio
*bio
)
2726 return bio
->bi_private
!= NULL
;
2729 static inline int f2fs_sb_has_crypto(struct super_block
*sb
)
2731 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_ENCRYPT
);
2734 static inline int f2fs_sb_mounted_blkzoned(struct super_block
*sb
)
2736 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_BLKZONED
);
2739 #ifdef CONFIG_BLK_DEV_ZONED
2740 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
2741 struct block_device
*bdev
, block_t blkaddr
)
2743 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
2746 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
2747 if (FDEV(i
).bdev
== bdev
)
2748 return FDEV(i
).blkz_type
[zno
];
2753 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
2755 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
2757 return blk_queue_discard(q
) || f2fs_sb_mounted_blkzoned(sbi
->sb
);
2760 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
2762 clear_opt(sbi
, ADAPTIVE
);
2763 clear_opt(sbi
, LFS
);
2766 case F2FS_MOUNT_ADAPTIVE
:
2767 set_opt(sbi
, ADAPTIVE
);
2769 case F2FS_MOUNT_LFS
:
2775 static inline bool f2fs_may_encrypt(struct inode
*inode
)
2777 #ifdef CONFIG_F2FS_FS_ENCRYPTION
2778 umode_t mode
= inode
->i_mode
;
2780 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));