4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 #include <linux/types.h>
15 #include <linux/page-flags.h>
16 #include <linux/buffer_head.h>
17 #include <linux/slab.h>
18 #include <linux/crc32.h>
19 #include <linux/magic.h>
20 #include <linux/kobject.h>
21 #include <linux/sched.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #include <linux/quotaops.h>
26 #include <crypto/hash.h>
28 #define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
29 #include <linux/fscrypt.h>
31 #ifdef CONFIG_F2FS_CHECK_FS
32 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
34 #define f2fs_bug_on(sbi, condition) \
36 if (unlikely(condition)) { \
38 set_sbi_flag(sbi, SBI_NEED_FSCK); \
43 #ifdef CONFIG_F2FS_FAULT_INJECTION
60 struct f2fs_fault_info
{
62 unsigned int inject_rate
;
63 unsigned int inject_type
;
66 extern char *fault_name
[FAULT_MAX
];
67 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
73 #define F2FS_MOUNT_BG_GC 0x00000001
74 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
75 #define F2FS_MOUNT_DISCARD 0x00000004
76 #define F2FS_MOUNT_NOHEAP 0x00000008
77 #define F2FS_MOUNT_XATTR_USER 0x00000010
78 #define F2FS_MOUNT_POSIX_ACL 0x00000020
79 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
80 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
81 #define F2FS_MOUNT_INLINE_DATA 0x00000100
82 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
83 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
84 #define F2FS_MOUNT_NOBARRIER 0x00000800
85 #define F2FS_MOUNT_FASTBOOT 0x00001000
86 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
87 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
88 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
89 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
90 #define F2FS_MOUNT_ADAPTIVE 0x00020000
91 #define F2FS_MOUNT_LFS 0x00040000
92 #define F2FS_MOUNT_USRQUOTA 0x00080000
93 #define F2FS_MOUNT_GRPQUOTA 0x00100000
94 #define F2FS_MOUNT_PRJQUOTA 0x00200000
95 #define F2FS_MOUNT_QUOTA 0x00400000
96 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
98 #define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
99 #define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
100 #define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option)
102 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
103 typecheck(unsigned long long, b) && \
104 ((long long)((a) - (b)) > 0))
106 typedef u32 block_t
; /*
107 * should not change u32, since it is the on-disk block
108 * address format, __le32.
112 struct f2fs_mount_info
{
116 #define F2FS_FEATURE_ENCRYPT 0x0001
117 #define F2FS_FEATURE_BLKZONED 0x0002
118 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
119 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
120 #define F2FS_FEATURE_PRJQUOTA 0x0010
121 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
122 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
123 #define F2FS_FEATURE_QUOTA_INO 0x0080
125 #define F2FS_HAS_FEATURE(sb, mask) \
126 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
127 #define F2FS_SET_FEATURE(sb, mask) \
128 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
129 #define F2FS_CLEAR_FEATURE(sb, mask) \
130 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
133 * For checkpoint manager
140 #define CP_UMOUNT 0x00000001
141 #define CP_FASTBOOT 0x00000002
142 #define CP_SYNC 0x00000004
143 #define CP_RECOVERY 0x00000008
144 #define CP_DISCARD 0x00000010
145 #define CP_TRIMMED 0x00000020
147 #define DEF_BATCHED_TRIM_SECTIONS 2048
148 #define BATCHED_TRIM_SEGMENTS(sbi) \
149 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
150 #define BATCHED_TRIM_BLOCKS(sbi) \
151 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
152 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
153 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
154 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
155 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
156 #define DEF_CP_INTERVAL 60 /* 60 secs */
157 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
167 * indicate meta/data type
179 /* for the list of ino */
181 ORPHAN_INO
, /* for orphan ino list */
182 APPEND_INO
, /* for append ino list */
183 UPDATE_INO
, /* for update ino list */
184 FLUSH_INO
, /* for multiple device flushing */
185 MAX_INO_ENTRY
, /* max. list */
189 struct list_head list
; /* list head */
190 nid_t ino
; /* inode number */
191 unsigned int dirty_device
; /* dirty device bitmap */
194 /* for the list of inodes to be GCed */
196 struct list_head list
; /* list head */
197 struct inode
*inode
; /* vfs inode pointer */
200 /* for the bitmap indicate blocks to be discarded */
201 struct discard_entry
{
202 struct list_head list
; /* list head */
203 block_t start_blkaddr
; /* start blockaddr of current segment */
204 unsigned char discard_map
[SIT_VBLOCK_MAP_SIZE
]; /* segment discard bitmap */
207 /* default discard granularity of inner discard thread, unit: block count */
208 #define DEFAULT_DISCARD_GRANULARITY 16
210 /* max discard pend list number */
211 #define MAX_PLIST_NUM 512
212 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
213 (MAX_PLIST_NUM - 1) : (blk_num - 1))
221 struct discard_info
{
222 block_t lstart
; /* logical start address */
223 block_t len
; /* length */
224 block_t start
; /* actual start address in dev */
228 struct rb_node rb_node
; /* rb node located in rb-tree */
231 block_t lstart
; /* logical start address */
232 block_t len
; /* length */
233 block_t start
; /* actual start address in dev */
235 struct discard_info di
; /* discard info */
238 struct list_head list
; /* command list */
239 struct completion wait
; /* compleation */
240 struct block_device
*bdev
; /* bdev */
241 unsigned short ref
; /* reference count */
242 unsigned char state
; /* state */
243 int error
; /* bio error */
254 struct discard_policy
{
255 int type
; /* type of discard */
256 unsigned int min_interval
; /* used for candidates exist */
257 unsigned int max_interval
; /* used for candidates not exist */
258 unsigned int max_requests
; /* # of discards issued per round */
259 unsigned int io_aware_gran
; /* minimum granularity discard not be aware of I/O */
260 bool io_aware
; /* issue discard in idle time */
261 bool sync
; /* submit discard with REQ_SYNC flag */
262 unsigned int granularity
; /* discard granularity */
265 struct discard_cmd_control
{
266 struct task_struct
*f2fs_issue_discard
; /* discard thread */
267 struct list_head entry_list
; /* 4KB discard entry list */
268 struct list_head pend_list
[MAX_PLIST_NUM
];/* store pending entries */
269 unsigned char pend_list_tag
[MAX_PLIST_NUM
];/* tag for pending entries */
270 struct list_head wait_list
; /* store on-flushing entries */
271 struct list_head fstrim_list
; /* in-flight discard from fstrim */
272 wait_queue_head_t discard_wait_queue
; /* waiting queue for wake-up */
273 unsigned int discard_wake
; /* to wake up discard thread */
274 struct mutex cmd_lock
;
275 unsigned int nr_discards
; /* # of discards in the list */
276 unsigned int max_discards
; /* max. discards to be issued */
277 unsigned int discard_granularity
; /* discard granularity */
278 unsigned int undiscard_blks
; /* # of undiscard blocks */
279 atomic_t issued_discard
; /* # of issued discard */
280 atomic_t issing_discard
; /* # of issing discard */
281 atomic_t discard_cmd_cnt
; /* # of cached cmd count */
282 struct rb_root root
; /* root of discard rb-tree */
285 /* for the list of fsync inodes, used only during recovery */
286 struct fsync_inode_entry
{
287 struct list_head list
; /* list head */
288 struct inode
*inode
; /* vfs inode pointer */
289 block_t blkaddr
; /* block address locating the last fsync */
290 block_t last_dentry
; /* block address locating the last dentry */
293 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
294 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
296 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
297 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
298 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
299 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
301 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
302 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
304 static inline int update_nats_in_cursum(struct f2fs_journal
*journal
, int i
)
306 int before
= nats_in_cursum(journal
);
308 journal
->n_nats
= cpu_to_le16(before
+ i
);
312 static inline int update_sits_in_cursum(struct f2fs_journal
*journal
, int i
)
314 int before
= sits_in_cursum(journal
);
316 journal
->n_sits
= cpu_to_le16(before
+ i
);
320 static inline bool __has_cursum_space(struct f2fs_journal
*journal
,
323 if (type
== NAT_JOURNAL
)
324 return size
<= MAX_NAT_JENTRIES(journal
);
325 return size
<= MAX_SIT_JENTRIES(journal
);
331 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
332 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
333 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
335 #define F2FS_IOCTL_MAGIC 0xf5
336 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
337 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
338 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
339 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
340 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
341 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
342 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
343 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
344 struct f2fs_defragment)
345 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
346 struct f2fs_move_range)
347 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
348 struct f2fs_flush_device)
349 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
350 struct f2fs_gc_range)
351 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
353 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
354 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
355 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
358 * should be same as XFS_IOC_GOINGDOWN.
359 * Flags for going down operation used by FS_IOC_GOINGDOWN
361 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
362 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
363 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
364 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
365 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
367 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
369 * ioctl commands in 32 bit emulation
371 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
372 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
373 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
376 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
377 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
379 struct f2fs_gc_range
{
385 struct f2fs_defragment
{
390 struct f2fs_move_range
{
391 u32 dst_fd
; /* destination fd */
392 u64 pos_in
; /* start position in src_fd */
393 u64 pos_out
; /* start position in dst_fd */
394 u64 len
; /* size to move */
397 struct f2fs_flush_device
{
398 u32 dev_num
; /* device number to flush */
399 u32 segments
; /* # of segments to flush */
402 /* for inline stuff */
403 #define DEF_INLINE_RESERVED_SIZE 1
404 #define DEF_MIN_INLINE_SIZE 1
405 static inline int get_extra_isize(struct inode
*inode
);
406 static inline int get_inline_xattr_addrs(struct inode
*inode
);
407 #define F2FS_INLINE_XATTR_ADDRS(inode) get_inline_xattr_addrs(inode)
408 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
409 (CUR_ADDRS_PER_INODE(inode) - \
410 F2FS_INLINE_XATTR_ADDRS(inode) - \
411 DEF_INLINE_RESERVED_SIZE))
414 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
415 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
417 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
418 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
419 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
420 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
421 NR_INLINE_DENTRY(inode) + \
422 INLINE_DENTRY_BITMAP_SIZE(inode)))
425 * For INODE and NODE manager
427 /* for directory operations */
428 struct f2fs_dentry_ptr
{
431 struct f2fs_dir_entry
*dentry
;
432 __u8 (*filename
)[F2FS_SLOT_LEN
];
437 static inline void make_dentry_ptr_block(struct inode
*inode
,
438 struct f2fs_dentry_ptr
*d
, struct f2fs_dentry_block
*t
)
441 d
->max
= NR_DENTRY_IN_BLOCK
;
442 d
->nr_bitmap
= SIZE_OF_DENTRY_BITMAP
;
443 d
->bitmap
= &t
->dentry_bitmap
;
444 d
->dentry
= t
->dentry
;
445 d
->filename
= t
->filename
;
448 static inline void make_dentry_ptr_inline(struct inode
*inode
,
449 struct f2fs_dentry_ptr
*d
, void *t
)
451 int entry_cnt
= NR_INLINE_DENTRY(inode
);
452 int bitmap_size
= INLINE_DENTRY_BITMAP_SIZE(inode
);
453 int reserved_size
= INLINE_RESERVED_SIZE(inode
);
457 d
->nr_bitmap
= bitmap_size
;
459 d
->dentry
= t
+ bitmap_size
+ reserved_size
;
460 d
->filename
= t
+ bitmap_size
+ reserved_size
+
461 SIZE_OF_DIR_ENTRY
* entry_cnt
;
465 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
466 * as its node offset to distinguish from index node blocks.
467 * But some bits are used to mark the node block.
469 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
472 ALLOC_NODE
, /* allocate a new node page if needed */
473 LOOKUP_NODE
, /* look up a node without readahead */
475 * look up a node with readahead called
480 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
482 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
484 /* vector size for gang look-up from extent cache that consists of radix tree */
485 #define EXT_TREE_VEC_SIZE 64
487 /* for in-memory extent cache entry */
488 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
490 /* number of extent info in extent cache we try to shrink */
491 #define EXTENT_CACHE_SHRINK_NUMBER 128
494 struct rb_node rb_node
; /* rb node located in rb-tree */
495 unsigned int ofs
; /* start offset of the entry */
496 unsigned int len
; /* length of the entry */
500 unsigned int fofs
; /* start offset in a file */
501 unsigned int len
; /* length of the extent */
502 u32 blk
; /* start block address of the extent */
506 struct rb_node rb_node
;
513 struct extent_info ei
; /* extent info */
516 struct list_head list
; /* node in global extent list of sbi */
517 struct extent_tree
*et
; /* extent tree pointer */
521 nid_t ino
; /* inode number */
522 struct rb_root root
; /* root of extent info rb-tree */
523 struct extent_node
*cached_en
; /* recently accessed extent node */
524 struct extent_info largest
; /* largested extent info */
525 struct list_head list
; /* to be used by sbi->zombie_list */
526 rwlock_t lock
; /* protect extent info rb-tree */
527 atomic_t node_cnt
; /* # of extent node in rb-tree*/
528 bool largest_updated
; /* largest extent updated */
532 * This structure is taken from ext4_map_blocks.
534 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
536 #define F2FS_MAP_NEW (1 << BH_New)
537 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
538 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
539 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
542 struct f2fs_map_blocks
{
546 unsigned int m_flags
;
547 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
550 /* for flag in get_data_block */
552 F2FS_GET_BLOCK_DEFAULT
,
553 F2FS_GET_BLOCK_FIEMAP
,
555 F2FS_GET_BLOCK_PRE_DIO
,
556 F2FS_GET_BLOCK_PRE_AIO
,
560 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
562 #define FADVISE_COLD_BIT 0x01
563 #define FADVISE_LOST_PINO_BIT 0x02
564 #define FADVISE_ENCRYPT_BIT 0x04
565 #define FADVISE_ENC_NAME_BIT 0x08
566 #define FADVISE_KEEP_SIZE_BIT 0x10
568 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
569 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
570 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
571 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
572 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
573 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
574 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
575 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
576 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
577 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
578 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
579 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
580 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
582 #define DEF_DIR_LEVEL 0
584 struct f2fs_inode_info
{
585 struct inode vfs_inode
; /* serve a vfs inode */
586 unsigned long i_flags
; /* keep an inode flags for ioctl */
587 unsigned char i_advise
; /* use to give file attribute hints */
588 unsigned char i_dir_level
; /* use for dentry level for large dir */
589 unsigned int i_current_depth
; /* use only in directory structure */
590 unsigned int i_pino
; /* parent inode number */
591 umode_t i_acl_mode
; /* keep file acl mode temporarily */
593 /* Use below internally in f2fs*/
594 unsigned long flags
; /* use to pass per-file flags */
595 struct rw_semaphore i_sem
; /* protect fi info */
596 atomic_t dirty_pages
; /* # of dirty pages */
597 f2fs_hash_t chash
; /* hash value of given file name */
598 unsigned int clevel
; /* maximum level of given file name */
599 struct task_struct
*task
; /* lookup and create consistency */
600 struct task_struct
*cp_task
; /* separate cp/wb IO stats*/
601 nid_t i_xattr_nid
; /* node id that contains xattrs */
602 loff_t last_disk_size
; /* lastly written file size */
605 struct dquot
*i_dquot
[MAXQUOTAS
];
607 /* quota space reservation, managed internally by quota code */
608 qsize_t i_reserved_quota
;
610 struct list_head dirty_list
; /* dirty list for dirs and files */
611 struct list_head gdirty_list
; /* linked in global dirty list */
612 struct list_head inmem_ilist
; /* list for inmem inodes */
613 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
614 struct task_struct
*inmem_task
; /* store inmemory task */
615 struct mutex inmem_lock
; /* lock for inmemory pages */
616 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
617 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
618 struct rw_semaphore i_mmap_sem
;
619 struct rw_semaphore i_xattr_sem
; /* avoid racing between reading and changing EAs */
621 int i_extra_isize
; /* size of extra space located in i_addr */
622 kprojid_t i_projid
; /* id for project quota */
623 int i_inline_xattr_size
; /* inline xattr size */
626 static inline void get_extent_info(struct extent_info
*ext
,
627 struct f2fs_extent
*i_ext
)
629 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
630 ext
->blk
= le32_to_cpu(i_ext
->blk
);
631 ext
->len
= le32_to_cpu(i_ext
->len
);
634 static inline void set_raw_extent(struct extent_info
*ext
,
635 struct f2fs_extent
*i_ext
)
637 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
638 i_ext
->blk
= cpu_to_le32(ext
->blk
);
639 i_ext
->len
= cpu_to_le32(ext
->len
);
642 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
643 u32 blk
, unsigned int len
)
650 static inline bool __is_discard_mergeable(struct discard_info
*back
,
651 struct discard_info
*front
)
653 return back
->lstart
+ back
->len
== front
->lstart
;
656 static inline bool __is_discard_back_mergeable(struct discard_info
*cur
,
657 struct discard_info
*back
)
659 return __is_discard_mergeable(back
, cur
);
662 static inline bool __is_discard_front_mergeable(struct discard_info
*cur
,
663 struct discard_info
*front
)
665 return __is_discard_mergeable(cur
, front
);
668 static inline bool __is_extent_mergeable(struct extent_info
*back
,
669 struct extent_info
*front
)
671 return (back
->fofs
+ back
->len
== front
->fofs
&&
672 back
->blk
+ back
->len
== front
->blk
);
675 static inline bool __is_back_mergeable(struct extent_info
*cur
,
676 struct extent_info
*back
)
678 return __is_extent_mergeable(back
, cur
);
681 static inline bool __is_front_mergeable(struct extent_info
*cur
,
682 struct extent_info
*front
)
684 return __is_extent_mergeable(cur
, front
);
687 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
688 static inline void __try_update_largest_extent(struct extent_tree
*et
,
689 struct extent_node
*en
)
691 if (en
->ei
.len
> et
->largest
.len
) {
692 et
->largest
= en
->ei
;
693 et
->largest_updated
= true;
698 * For free nid management
701 FREE_NID
, /* newly added to free nid list */
702 PREALLOC_NID
, /* it is preallocated */
706 struct f2fs_nm_info
{
707 block_t nat_blkaddr
; /* base disk address of NAT */
708 nid_t max_nid
; /* maximum possible node ids */
709 nid_t available_nids
; /* # of available node ids */
710 nid_t next_scan_nid
; /* the next nid to be scanned */
711 unsigned int ram_thresh
; /* control the memory footprint */
712 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
713 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
715 /* NAT cache management */
716 struct radix_tree_root nat_root
;/* root of the nat entry cache */
717 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
718 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
719 struct list_head nat_entries
; /* cached nat entry list (clean) */
720 unsigned int nat_cnt
; /* the # of cached nat entries */
721 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
722 unsigned int nat_blocks
; /* # of nat blocks */
724 /* free node ids management */
725 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
726 struct list_head free_nid_list
; /* list for free nids excluding preallocated nids */
727 unsigned int nid_cnt
[MAX_NID_STATE
]; /* the number of free node id */
728 spinlock_t nid_list_lock
; /* protect nid lists ops */
729 struct mutex build_lock
; /* lock for build free nids */
730 unsigned char (*free_nid_bitmap
)[NAT_ENTRY_BITMAP_SIZE
];
731 unsigned char *nat_block_bitmap
;
732 unsigned short *free_nid_count
; /* free nid count of NAT block */
735 char *nat_bitmap
; /* NAT bitmap pointer */
737 unsigned int nat_bits_blocks
; /* # of nat bits blocks */
738 unsigned char *nat_bits
; /* NAT bits blocks */
739 unsigned char *full_nat_bits
; /* full NAT pages */
740 unsigned char *empty_nat_bits
; /* empty NAT pages */
741 #ifdef CONFIG_F2FS_CHECK_FS
742 char *nat_bitmap_mir
; /* NAT bitmap mirror */
744 int bitmap_size
; /* bitmap size */
748 * this structure is used as one of function parameters.
749 * all the information are dedicated to a given direct node block determined
750 * by the data offset in a file.
752 struct dnode_of_data
{
753 struct inode
*inode
; /* vfs inode pointer */
754 struct page
*inode_page
; /* its inode page, NULL is possible */
755 struct page
*node_page
; /* cached direct node page */
756 nid_t nid
; /* node id of the direct node block */
757 unsigned int ofs_in_node
; /* data offset in the node page */
758 bool inode_page_locked
; /* inode page is locked or not */
759 bool node_changed
; /* is node block changed */
760 char cur_level
; /* level of hole node page */
761 char max_level
; /* level of current page located */
762 block_t data_blkaddr
; /* block address of the node block */
765 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
766 struct page
*ipage
, struct page
*npage
, nid_t nid
)
768 memset(dn
, 0, sizeof(*dn
));
770 dn
->inode_page
= ipage
;
771 dn
->node_page
= npage
;
778 * By default, there are 6 active log areas across the whole main area.
779 * When considering hot and cold data separation to reduce cleaning overhead,
780 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
782 * In the current design, you should not change the numbers intentionally.
783 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
784 * logs individually according to the underlying devices. (default: 6)
785 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
786 * data and 8 for node logs.
788 #define NR_CURSEG_DATA_TYPE (3)
789 #define NR_CURSEG_NODE_TYPE (3)
790 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
793 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
794 CURSEG_WARM_DATA
, /* data blocks */
795 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
796 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
797 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
798 CURSEG_COLD_NODE
, /* indirect node blocks */
803 struct completion wait
;
804 struct llist_node llnode
;
809 struct flush_cmd_control
{
810 struct task_struct
*f2fs_issue_flush
; /* flush thread */
811 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
812 atomic_t issued_flush
; /* # of issued flushes */
813 atomic_t issing_flush
; /* # of issing flushes */
814 struct llist_head issue_list
; /* list for command issue */
815 struct llist_node
*dispatch_list
; /* list for command dispatch */
818 struct f2fs_sm_info
{
819 struct sit_info
*sit_info
; /* whole segment information */
820 struct free_segmap_info
*free_info
; /* free segment information */
821 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
822 struct curseg_info
*curseg_array
; /* active segment information */
824 struct rw_semaphore curseg_lock
; /* for preventing curseg change */
826 block_t seg0_blkaddr
; /* block address of 0'th segment */
827 block_t main_blkaddr
; /* start block address of main area */
828 block_t ssa_blkaddr
; /* start block address of SSA area */
830 unsigned int segment_count
; /* total # of segments */
831 unsigned int main_segments
; /* # of segments in main area */
832 unsigned int reserved_segments
; /* # of reserved segments */
833 unsigned int ovp_segments
; /* # of overprovision segments */
835 /* a threshold to reclaim prefree segments */
836 unsigned int rec_prefree_segments
;
838 /* for batched trimming */
839 unsigned int trim_sections
; /* # of sections to trim */
841 struct list_head sit_entry_set
; /* sit entry set list */
843 unsigned int ipu_policy
; /* in-place-update policy */
844 unsigned int min_ipu_util
; /* in-place-update threshold */
845 unsigned int min_fsync_blocks
; /* threshold for fsync */
846 unsigned int min_hot_blocks
; /* threshold for hot block allocation */
847 unsigned int min_ssr_sections
; /* threshold to trigger SSR allocation */
849 /* for flush command control */
850 struct flush_cmd_control
*fcc_info
;
852 /* for discard command control */
853 struct discard_cmd_control
*dcc_info
;
860 * COUNT_TYPE for monitoring
862 * f2fs monitors the number of several block types such as on-writeback,
863 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
865 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
880 * The below are the page types of bios used in submit_bio().
881 * The available types are:
882 * DATA User data pages. It operates as async mode.
883 * NODE Node pages. It operates as async mode.
884 * META FS metadata pages such as SIT, NAT, CP.
885 * NR_PAGE_TYPE The number of page types.
886 * META_FLUSH Make sure the previous pages are written
887 * with waiting the bio's completion
888 * ... Only can be used with META.
890 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
897 INMEM
, /* the below types are used by tracepoints only. */
906 HOT
= 0, /* must be zero for meta bio */
912 enum need_lock_type
{
918 enum cp_reason_type
{
931 APP_DIRECT_IO
, /* app direct IOs */
932 APP_BUFFERED_IO
, /* app buffered IOs */
933 APP_WRITE_IO
, /* app write IOs */
934 APP_MAPPED_IO
, /* app mapped IOs */
935 FS_DATA_IO
, /* data IOs from kworker/fsync/reclaimer */
936 FS_NODE_IO
, /* node IOs from kworker/fsync/reclaimer */
937 FS_META_IO
, /* meta IOs from kworker/reclaimer */
938 FS_GC_DATA_IO
, /* data IOs from forground gc */
939 FS_GC_NODE_IO
, /* node IOs from forground gc */
940 FS_CP_DATA_IO
, /* data IOs from checkpoint */
941 FS_CP_NODE_IO
, /* node IOs from checkpoint */
942 FS_CP_META_IO
, /* meta IOs from checkpoint */
943 FS_DISCARD
, /* discard */
947 struct f2fs_io_info
{
948 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
949 nid_t ino
; /* inode number */
950 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
951 enum temp_type temp
; /* contains HOT/WARM/COLD */
952 int op
; /* contains REQ_OP_ */
953 int op_flags
; /* req_flag_bits */
954 block_t new_blkaddr
; /* new block address to be written */
955 block_t old_blkaddr
; /* old block address before Cow */
956 struct page
*page
; /* page to be written */
957 struct page
*encrypted_page
; /* encrypted page */
958 struct list_head list
; /* serialize IOs */
959 bool submitted
; /* indicate IO submission */
960 int need_lock
; /* indicate we need to lock cp_rwsem */
961 bool in_list
; /* indicate fio is in io_list */
962 bool is_meta
; /* indicate borrow meta inode mapping or not */
963 enum iostat_type io_type
; /* io type */
966 #define is_read_io(rw) ((rw) == READ)
967 struct f2fs_bio_info
{
968 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
969 struct bio
*bio
; /* bios to merge */
970 sector_t last_block_in_bio
; /* last block number */
971 struct f2fs_io_info fio
; /* store buffered io info. */
972 struct rw_semaphore io_rwsem
; /* blocking op for bio */
973 spinlock_t io_lock
; /* serialize DATA/NODE IOs */
974 struct list_head io_list
; /* track fios */
977 #define FDEV(i) (sbi->devs[i])
978 #define RDEV(i) (raw_super->devs[i])
979 struct f2fs_dev_info
{
980 struct block_device
*bdev
;
981 char path
[MAX_PATH_LEN
];
982 unsigned int total_segments
;
985 #ifdef CONFIG_BLK_DEV_ZONED
986 unsigned int nr_blkz
; /* Total number of zones */
987 u8
*blkz_type
; /* Array of zones type */
992 DIR_INODE
, /* for dirty dir inode */
993 FILE_INODE
, /* for dirty regular/symlink inode */
994 DIRTY_META
, /* for all dirtied inode metadata */
995 ATOMIC_FILE
, /* for all atomic files */
999 /* for inner inode cache management */
1000 struct inode_management
{
1001 struct radix_tree_root ino_root
; /* ino entry array */
1002 spinlock_t ino_lock
; /* for ino entry lock */
1003 struct list_head ino_list
; /* inode list head */
1004 unsigned long ino_num
; /* number of entries */
1007 /* For s_flag in struct f2fs_sb_info */
1009 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
1010 SBI_IS_CLOSE
, /* specify unmounting */
1011 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
1012 SBI_POR_DOING
, /* recovery is doing or not */
1013 SBI_NEED_SB_WRITE
, /* need to recover superblock */
1014 SBI_NEED_CP
, /* need to checkpoint */
1023 struct f2fs_sb_info
{
1024 struct super_block
*sb
; /* pointer to VFS super block */
1025 struct proc_dir_entry
*s_proc
; /* proc entry */
1026 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
1027 int valid_super_block
; /* valid super block no */
1028 unsigned long s_flag
; /* flags for sbi */
1030 #ifdef CONFIG_BLK_DEV_ZONED
1031 unsigned int blocks_per_blkz
; /* F2FS blocks per zone */
1032 unsigned int log_blocks_per_blkz
; /* log2 F2FS blocks per zone */
1035 /* for node-related operations */
1036 struct f2fs_nm_info
*nm_info
; /* node manager */
1037 struct inode
*node_inode
; /* cache node blocks */
1039 /* for segment-related operations */
1040 struct f2fs_sm_info
*sm_info
; /* segment manager */
1042 /* for bio operations */
1043 struct f2fs_bio_info
*write_io
[NR_PAGE_TYPE
]; /* for write bios */
1044 struct mutex wio_mutex
[NR_PAGE_TYPE
- 1][NR_TEMP_TYPE
];
1045 /* bio ordering for NODE/DATA */
1046 int write_io_size_bits
; /* Write IO size bits */
1047 mempool_t
*write_io_dummy
; /* Dummy pages */
1049 /* for checkpoint */
1050 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
1051 int cur_cp_pack
; /* remain current cp pack */
1052 spinlock_t cp_lock
; /* for flag in ckpt */
1053 struct inode
*meta_inode
; /* cache meta blocks */
1054 struct mutex cp_mutex
; /* checkpoint procedure lock */
1055 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
1056 struct rw_semaphore node_write
; /* locking node writes */
1057 struct rw_semaphore node_change
; /* locking node change */
1058 wait_queue_head_t cp_wait
;
1059 unsigned long last_time
[MAX_TIME
]; /* to store time in jiffies */
1060 long interval_time
[MAX_TIME
]; /* to store thresholds */
1062 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
1064 /* for orphan inode, use 0'th array */
1065 unsigned int max_orphans
; /* max orphan inodes */
1067 /* for inode management */
1068 struct list_head inode_list
[NR_INODE_TYPE
]; /* dirty inode list */
1069 spinlock_t inode_lock
[NR_INODE_TYPE
]; /* for dirty inode list lock */
1071 /* for extent tree cache */
1072 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
1073 struct mutex extent_tree_lock
; /* locking extent radix tree */
1074 struct list_head extent_list
; /* lru list for shrinker */
1075 spinlock_t extent_lock
; /* locking extent lru list */
1076 atomic_t total_ext_tree
; /* extent tree count */
1077 struct list_head zombie_list
; /* extent zombie tree list */
1078 atomic_t total_zombie_tree
; /* extent zombie tree count */
1079 atomic_t total_ext_node
; /* extent info count */
1081 /* basic filesystem units */
1082 unsigned int log_sectors_per_block
; /* log2 sectors per block */
1083 unsigned int log_blocksize
; /* log2 block size */
1084 unsigned int blocksize
; /* block size */
1085 unsigned int root_ino_num
; /* root inode number*/
1086 unsigned int node_ino_num
; /* node inode number*/
1087 unsigned int meta_ino_num
; /* meta inode number*/
1088 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
1089 unsigned int blocks_per_seg
; /* blocks per segment */
1090 unsigned int segs_per_sec
; /* segments per section */
1091 unsigned int secs_per_zone
; /* sections per zone */
1092 unsigned int total_sections
; /* total section count */
1093 unsigned int total_node_count
; /* total node block count */
1094 unsigned int total_valid_node_count
; /* valid node block count */
1095 loff_t max_file_blocks
; /* max block index of file */
1096 int active_logs
; /* # of active logs */
1097 int dir_level
; /* directory level */
1098 int inline_xattr_size
; /* inline xattr size */
1099 unsigned int trigger_ssr_threshold
; /* threshold to trigger ssr */
1101 block_t user_block_count
; /* # of user blocks */
1102 block_t total_valid_block_count
; /* # of valid blocks */
1103 block_t discard_blks
; /* discard command candidats */
1104 block_t last_valid_block_count
; /* for recovery */
1105 block_t reserved_blocks
; /* configurable reserved blocks */
1106 block_t current_reserved_blocks
; /* current reserved blocks */
1108 u32 s_next_generation
; /* for NFS support */
1110 /* # of pages, see count_type */
1111 atomic_t nr_pages
[NR_COUNT_TYPE
];
1112 /* # of allocated blocks */
1113 struct percpu_counter alloc_valid_block_count
;
1115 /* writeback control */
1116 atomic_t wb_sync_req
; /* count # of WB_SYNC threads */
1118 /* valid inode count */
1119 struct percpu_counter total_valid_inode_count
;
1121 struct f2fs_mount_info mount_opt
; /* mount options */
1123 /* for cleaning operations */
1124 struct mutex gc_mutex
; /* mutex for GC */
1125 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
1126 unsigned int cur_victim_sec
; /* current victim section num */
1128 /* threshold for converting bg victims for fg */
1131 /* maximum # of trials to find a victim segment for SSR and GC */
1132 unsigned int max_victim_search
;
1135 * for stat information.
1136 * one is for the LFS mode, and the other is for the SSR mode.
1138 #ifdef CONFIG_F2FS_STAT_FS
1139 struct f2fs_stat_info
*stat_info
; /* FS status information */
1140 unsigned int segment_count
[2]; /* # of allocated segments */
1141 unsigned int block_count
[2]; /* # of allocated blocks */
1142 atomic_t inplace_count
; /* # of inplace update */
1143 atomic64_t total_hit_ext
; /* # of lookup extent cache */
1144 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
1145 atomic64_t read_hit_largest
; /* # of hit largest extent node */
1146 atomic64_t read_hit_cached
; /* # of hit cached extent node */
1147 atomic_t inline_xattr
; /* # of inline_xattr inodes */
1148 atomic_t inline_inode
; /* # of inline_data inodes */
1149 atomic_t inline_dir
; /* # of inline_dentry inodes */
1150 atomic_t aw_cnt
; /* # of atomic writes */
1151 atomic_t vw_cnt
; /* # of volatile writes */
1152 atomic_t max_aw_cnt
; /* max # of atomic writes */
1153 atomic_t max_vw_cnt
; /* max # of volatile writes */
1154 int bg_gc
; /* background gc calls */
1155 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
1157 spinlock_t stat_lock
; /* lock for stat operations */
1159 /* For app/fs IO statistics */
1160 spinlock_t iostat_lock
;
1161 unsigned long long write_iostat
[NR_IO_TYPE
];
1164 /* For sysfs suppport */
1165 struct kobject s_kobj
;
1166 struct completion s_kobj_unregister
;
1168 /* For shrinker support */
1169 struct list_head s_list
;
1170 int s_ndevs
; /* number of devices */
1171 struct f2fs_dev_info
*devs
; /* for device list */
1172 unsigned int dirty_device
; /* for checkpoint data flush */
1173 spinlock_t dev_lock
; /* protect dirty_device */
1174 struct mutex umount_mutex
;
1175 unsigned int shrinker_run_no
;
1177 /* For write statistics */
1178 u64 sectors_written_start
;
1181 /* Reference to checksum algorithm driver via cryptoapi */
1182 struct crypto_shash
*s_chksum_driver
;
1184 /* Precomputed FS UUID checksum for seeding other checksums */
1185 __u32 s_chksum_seed
;
1187 /* For fault injection */
1188 #ifdef CONFIG_F2FS_FAULT_INJECTION
1189 struct f2fs_fault_info fault_info
;
1193 /* Names of quota files with journalled quota */
1194 char *s_qf_names
[MAXQUOTAS
];
1195 int s_jquota_fmt
; /* Format of quota to use */
1199 #ifdef CONFIG_F2FS_FAULT_INJECTION
1200 #define f2fs_show_injection_info(type) \
1201 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1202 KERN_INFO, fault_name[type], \
1203 __func__, __builtin_return_address(0))
1204 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
1206 struct f2fs_fault_info
*ffi
= &sbi
->fault_info
;
1208 if (!ffi
->inject_rate
)
1211 if (!IS_FAULT_SET(ffi
, type
))
1214 atomic_inc(&ffi
->inject_ops
);
1215 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
1216 atomic_set(&ffi
->inject_ops
, 0);
1223 /* For write statistics. Suppose sector size is 512 bytes,
1224 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1226 #define BD_PART_WRITTEN(s) \
1227 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1228 (s)->sectors_written_start) >> 1)
1230 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
1232 sbi
->last_time
[type
] = jiffies
;
1235 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
1237 unsigned long interval
= sbi
->interval_time
[type
] * HZ
;
1239 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
1242 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
1244 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
1245 struct request_queue
*q
= bdev_get_queue(bdev
);
1246 struct request_list
*rl
= &q
->root_rl
;
1248 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
1251 return f2fs_time_over(sbi
, REQ_TIME
);
1257 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1258 unsigned int length
)
1260 SHASH_DESC_ON_STACK(shash
, sbi
->s_chksum_driver
);
1261 u32
*ctx
= (u32
*)shash_desc_ctx(shash
);
1265 shash
->tfm
= sbi
->s_chksum_driver
;
1267 *ctx
= F2FS_SUPER_MAGIC
;
1269 err
= crypto_shash_update(shash
, address
, length
);
1277 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1278 void *buf
, size_t buf_size
)
1280 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1283 static inline u32
f2fs_chksum(struct f2fs_sb_info
*sbi
, u32 crc
,
1284 const void *address
, unsigned int length
)
1287 struct shash_desc shash
;
1292 BUG_ON(crypto_shash_descsize(sbi
->s_chksum_driver
) != sizeof(desc
.ctx
));
1294 desc
.shash
.tfm
= sbi
->s_chksum_driver
;
1295 desc
.shash
.flags
= 0;
1296 *(u32
*)desc
.ctx
= crc
;
1298 err
= crypto_shash_update(&desc
.shash
, address
, length
);
1301 return *(u32
*)desc
.ctx
;
1304 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1306 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1309 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1311 return sb
->s_fs_info
;
1314 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1316 return F2FS_SB(inode
->i_sb
);
1319 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1321 return F2FS_I_SB(mapping
->host
);
1324 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1326 return F2FS_M_SB(page
->mapping
);
1329 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1331 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1334 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1336 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1339 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1341 return (struct f2fs_node
*)page_address(page
);
1344 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1346 return &((struct f2fs_node
*)page_address(page
))->i
;
1349 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1351 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1354 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1356 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1359 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1361 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1364 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1366 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1369 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1371 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1374 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1376 return sbi
->meta_inode
->i_mapping
;
1379 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1381 return sbi
->node_inode
->i_mapping
;
1384 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1386 return test_bit(type
, &sbi
->s_flag
);
1389 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1391 set_bit(type
, &sbi
->s_flag
);
1394 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1396 clear_bit(type
, &sbi
->s_flag
);
1399 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1401 return le64_to_cpu(cp
->checkpoint_ver
);
1404 static inline unsigned long f2fs_qf_ino(struct super_block
*sb
, int type
)
1406 if (type
< F2FS_MAX_QUOTAS
)
1407 return le32_to_cpu(F2FS_SB(sb
)->raw_super
->qf_ino
[type
]);
1411 static inline __u64
cur_cp_crc(struct f2fs_checkpoint
*cp
)
1413 size_t crc_offset
= le32_to_cpu(cp
->checksum_offset
);
1414 return le32_to_cpu(*((__le32
*)((unsigned char *)cp
+ crc_offset
)));
1417 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1419 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1421 return ckpt_flags
& f
;
1424 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1426 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1429 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1431 unsigned int ckpt_flags
;
1433 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1435 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1438 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1440 unsigned long flags
;
1442 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1443 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1444 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1447 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1449 unsigned int ckpt_flags
;
1451 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1453 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1456 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1458 unsigned long flags
;
1460 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1461 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1462 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1465 static inline void disable_nat_bits(struct f2fs_sb_info
*sbi
, bool lock
)
1467 unsigned long flags
;
1469 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
1472 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1473 __clear_ckpt_flags(F2FS_CKPT(sbi
), CP_NAT_BITS_FLAG
);
1474 kfree(NM_I(sbi
)->nat_bits
);
1475 NM_I(sbi
)->nat_bits
= NULL
;
1477 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1480 static inline bool enabled_nat_bits(struct f2fs_sb_info
*sbi
,
1481 struct cp_control
*cpc
)
1483 bool set
= is_set_ckpt_flags(sbi
, CP_NAT_BITS_FLAG
);
1485 return (cpc
) ? (cpc
->reason
& CP_UMOUNT
) && set
: set
;
1488 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1490 down_read(&sbi
->cp_rwsem
);
1493 static inline int f2fs_trylock_op(struct f2fs_sb_info
*sbi
)
1495 return down_read_trylock(&sbi
->cp_rwsem
);
1498 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1500 up_read(&sbi
->cp_rwsem
);
1503 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1505 down_write(&sbi
->cp_rwsem
);
1508 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1510 up_write(&sbi
->cp_rwsem
);
1513 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1515 int reason
= CP_SYNC
;
1517 if (test_opt(sbi
, FASTBOOT
))
1518 reason
= CP_FASTBOOT
;
1519 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1524 static inline bool __remain_node_summaries(int reason
)
1526 return (reason
& (CP_UMOUNT
| CP_FASTBOOT
));
1529 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1531 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1532 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1536 * Check whether the inode has blocks or not
1538 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1540 block_t xattr_block
= F2FS_I(inode
)->i_xattr_nid
? 1 : 0;
1542 return (inode
->i_blocks
>> F2FS_LOG_SECTORS_PER_BLOCK
) > xattr_block
;
1545 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1547 return ofs
== XATTR_NODE_OFFSET
;
1550 static inline void f2fs_i_blocks_write(struct inode
*, block_t
, bool, bool);
1551 static inline int inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1552 struct inode
*inode
, blkcnt_t
*count
)
1554 blkcnt_t diff
= 0, release
= 0;
1555 block_t avail_user_block_count
;
1558 ret
= dquot_reserve_block(inode
, *count
);
1562 #ifdef CONFIG_F2FS_FAULT_INJECTION
1563 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1564 f2fs_show_injection_info(FAULT_BLOCK
);
1570 * let's increase this in prior to actual block count change in order
1571 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1573 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1575 spin_lock(&sbi
->stat_lock
);
1576 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1577 avail_user_block_count
= sbi
->user_block_count
-
1578 sbi
->current_reserved_blocks
;
1579 if (unlikely(sbi
->total_valid_block_count
> avail_user_block_count
)) {
1580 diff
= sbi
->total_valid_block_count
- avail_user_block_count
;
1583 sbi
->total_valid_block_count
= avail_user_block_count
;
1585 spin_unlock(&sbi
->stat_lock
);
1589 spin_unlock(&sbi
->stat_lock
);
1591 if (unlikely(release
)) {
1592 percpu_counter_sub(&sbi
->alloc_valid_block_count
, release
);
1593 dquot_release_reservation_block(inode
, release
);
1595 f2fs_i_blocks_write(inode
, *count
, true, true);
1599 percpu_counter_sub(&sbi
->alloc_valid_block_count
, release
);
1600 dquot_release_reservation_block(inode
, release
);
1604 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1605 struct inode
*inode
,
1608 blkcnt_t sectors
= count
<< F2FS_LOG_SECTORS_PER_BLOCK
;
1610 spin_lock(&sbi
->stat_lock
);
1611 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1612 f2fs_bug_on(sbi
, inode
->i_blocks
< sectors
);
1613 sbi
->total_valid_block_count
-= (block_t
)count
;
1614 if (sbi
->reserved_blocks
&&
1615 sbi
->current_reserved_blocks
< sbi
->reserved_blocks
)
1616 sbi
->current_reserved_blocks
= min(sbi
->reserved_blocks
,
1617 sbi
->current_reserved_blocks
+ count
);
1618 spin_unlock(&sbi
->stat_lock
);
1619 f2fs_i_blocks_write(inode
, count
, false, true);
1622 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1624 atomic_inc(&sbi
->nr_pages
[count_type
]);
1626 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1627 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1630 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1633 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1635 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1636 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1637 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1638 if (IS_NOQUOTA(inode
))
1639 inc_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_QDATA
);
1642 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1644 atomic_dec(&sbi
->nr_pages
[count_type
]);
1647 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1649 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1650 !S_ISLNK(inode
->i_mode
))
1653 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1654 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1655 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1656 if (IS_NOQUOTA(inode
))
1657 dec_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_QDATA
);
1660 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1662 return atomic_read(&sbi
->nr_pages
[count_type
]);
1665 static inline int get_dirty_pages(struct inode
*inode
)
1667 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1670 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1672 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1673 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1674 sbi
->log_blocks_per_seg
;
1676 return segs
/ sbi
->segs_per_sec
;
1679 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1681 return sbi
->total_valid_block_count
;
1684 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1686 return sbi
->discard_blks
;
1689 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1691 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1693 /* return NAT or SIT bitmap */
1694 if (flag
== NAT_BITMAP
)
1695 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1696 else if (flag
== SIT_BITMAP
)
1697 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1702 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1704 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1707 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1709 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1712 if (__cp_payload(sbi
) > 0) {
1713 if (flag
== NAT_BITMAP
)
1714 return &ckpt
->sit_nat_version_bitmap
;
1716 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1718 offset
= (flag
== NAT_BITMAP
) ?
1719 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1720 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1724 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1726 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1728 if (sbi
->cur_cp_pack
== 2)
1729 start_addr
+= sbi
->blocks_per_seg
;
1733 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1735 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1737 if (sbi
->cur_cp_pack
== 1)
1738 start_addr
+= sbi
->blocks_per_seg
;
1742 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1744 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1747 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1749 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1752 static inline int inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1753 struct inode
*inode
, bool is_inode
)
1755 block_t valid_block_count
;
1756 unsigned int valid_node_count
;
1757 bool quota
= inode
&& !is_inode
;
1760 int ret
= dquot_reserve_block(inode
, 1);
1765 #ifdef CONFIG_F2FS_FAULT_INJECTION
1766 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1767 f2fs_show_injection_info(FAULT_BLOCK
);
1772 spin_lock(&sbi
->stat_lock
);
1774 valid_block_count
= sbi
->total_valid_block_count
+ 1;
1775 if (unlikely(valid_block_count
+ sbi
->current_reserved_blocks
>
1776 sbi
->user_block_count
)) {
1777 spin_unlock(&sbi
->stat_lock
);
1781 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1782 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1783 spin_unlock(&sbi
->stat_lock
);
1787 sbi
->total_valid_node_count
++;
1788 sbi
->total_valid_block_count
++;
1789 spin_unlock(&sbi
->stat_lock
);
1793 f2fs_mark_inode_dirty_sync(inode
, true);
1795 f2fs_i_blocks_write(inode
, 1, true, true);
1798 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1803 dquot_release_reservation_block(inode
, 1);
1807 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1808 struct inode
*inode
, bool is_inode
)
1810 spin_lock(&sbi
->stat_lock
);
1812 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1813 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1814 f2fs_bug_on(sbi
, !is_inode
&& !inode
->i_blocks
);
1816 sbi
->total_valid_node_count
--;
1817 sbi
->total_valid_block_count
--;
1818 if (sbi
->reserved_blocks
&&
1819 sbi
->current_reserved_blocks
< sbi
->reserved_blocks
)
1820 sbi
->current_reserved_blocks
++;
1822 spin_unlock(&sbi
->stat_lock
);
1825 f2fs_i_blocks_write(inode
, 1, false, true);
1828 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1830 return sbi
->total_valid_node_count
;
1833 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1835 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1838 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1840 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1843 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1845 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1848 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1849 pgoff_t index
, bool for_write
)
1851 #ifdef CONFIG_F2FS_FAULT_INJECTION
1855 page
= find_get_page_flags(mapping
, index
,
1856 FGP_LOCK
| FGP_ACCESSED
);
1858 page
= find_lock_page(mapping
, index
);
1862 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
)) {
1863 f2fs_show_injection_info(FAULT_PAGE_ALLOC
);
1868 return grab_cache_page(mapping
, index
);
1869 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1872 static inline struct page
*f2fs_pagecache_get_page(
1873 struct address_space
*mapping
, pgoff_t index
,
1874 int fgp_flags
, gfp_t gfp_mask
)
1876 #ifdef CONFIG_F2FS_FAULT_INJECTION
1877 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_GET
)) {
1878 f2fs_show_injection_info(FAULT_PAGE_GET
);
1882 return pagecache_get_page(mapping
, index
, fgp_flags
, gfp_mask
);
1885 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1887 char *src_kaddr
= kmap(src
);
1888 char *dst_kaddr
= kmap(dst
);
1890 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1895 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1901 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1907 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1910 f2fs_put_page(dn
->node_page
, 1);
1911 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1912 f2fs_put_page(dn
->inode_page
, 0);
1913 dn
->node_page
= NULL
;
1914 dn
->inode_page
= NULL
;
1917 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
1920 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
1923 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
1928 entry
= kmem_cache_alloc(cachep
, flags
);
1930 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
1934 static inline struct bio
*f2fs_bio_alloc(struct f2fs_sb_info
*sbi
,
1935 int npages
, bool no_fail
)
1940 /* No failure on bio allocation */
1941 bio
= bio_alloc(GFP_NOIO
, npages
);
1943 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
1946 #ifdef CONFIG_F2FS_FAULT_INJECTION
1947 if (time_to_inject(sbi
, FAULT_ALLOC_BIO
)) {
1948 f2fs_show_injection_info(FAULT_ALLOC_BIO
);
1952 return bio_alloc(GFP_KERNEL
, npages
);
1955 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
1956 unsigned long index
, void *item
)
1958 while (radix_tree_insert(root
, index
, item
))
1962 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1964 static inline bool IS_INODE(struct page
*page
)
1966 struct f2fs_node
*p
= F2FS_NODE(page
);
1968 return RAW_IS_INODE(p
);
1971 static inline int offset_in_addr(struct f2fs_inode
*i
)
1973 return (i
->i_inline
& F2FS_EXTRA_ATTR
) ?
1974 (le16_to_cpu(i
->i_extra_isize
) / sizeof(__le32
)) : 0;
1977 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
1979 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
1982 static inline int f2fs_has_extra_attr(struct inode
*inode
);
1983 static inline block_t
datablock_addr(struct inode
*inode
,
1984 struct page
*node_page
, unsigned int offset
)
1986 struct f2fs_node
*raw_node
;
1989 bool is_inode
= IS_INODE(node_page
);
1991 raw_node
= F2FS_NODE(node_page
);
1993 /* from GC path only */
1996 base
= offset_in_addr(&raw_node
->i
);
1997 } else if (f2fs_has_extra_attr(inode
) && is_inode
) {
1998 base
= get_extra_isize(inode
);
2001 addr_array
= blkaddr_in_node(raw_node
);
2002 return le32_to_cpu(addr_array
[base
+ offset
]);
2005 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
2010 mask
= 1 << (7 - (nr
& 0x07));
2011 return mask
& *addr
;
2014 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
2019 mask
= 1 << (7 - (nr
& 0x07));
2023 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
2028 mask
= 1 << (7 - (nr
& 0x07));
2032 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
2038 mask
= 1 << (7 - (nr
& 0x07));
2044 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
2050 mask
= 1 << (7 - (nr
& 0x07));
2056 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
2061 mask
= 1 << (7 - (nr
& 0x07));
2065 #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
2066 #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
2067 #define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
2069 static inline __u32
f2fs_mask_flags(umode_t mode
, __u32 flags
)
2073 else if (S_ISREG(mode
))
2074 return flags
& F2FS_REG_FLMASK
;
2076 return flags
& F2FS_OTHER_FLMASK
;
2079 /* used for f2fs_inode_info->flags */
2081 FI_NEW_INODE
, /* indicate newly allocated inode */
2082 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
2083 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
2084 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
2085 FI_INC_LINK
, /* need to increment i_nlink */
2086 FI_ACL_MODE
, /* indicate acl mode */
2087 FI_NO_ALLOC
, /* should not allocate any blocks */
2088 FI_FREE_NID
, /* free allocated nide */
2089 FI_NO_EXTENT
, /* not to use the extent cache */
2090 FI_INLINE_XATTR
, /* used for inline xattr */
2091 FI_INLINE_DATA
, /* used for inline data*/
2092 FI_INLINE_DENTRY
, /* used for inline dentry */
2093 FI_APPEND_WRITE
, /* inode has appended data */
2094 FI_UPDATE_WRITE
, /* inode has in-place-update data */
2095 FI_NEED_IPU
, /* used for ipu per file */
2096 FI_ATOMIC_FILE
, /* indicate atomic file */
2097 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
2098 FI_VOLATILE_FILE
, /* indicate volatile file */
2099 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
2100 FI_DROP_CACHE
, /* drop dirty page cache */
2101 FI_DATA_EXIST
, /* indicate data exists */
2102 FI_INLINE_DOTS
, /* indicate inline dot dentries */
2103 FI_DO_DEFRAG
, /* indicate defragment is running */
2104 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
2105 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
2106 FI_HOT_DATA
, /* indicate file is hot */
2107 FI_EXTRA_ATTR
, /* indicate file has extra attribute */
2108 FI_PROJ_INHERIT
, /* indicate file inherits projectid */
2111 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
2115 case FI_INLINE_XATTR
:
2116 case FI_INLINE_DATA
:
2117 case FI_INLINE_DENTRY
:
2121 case FI_INLINE_DOTS
:
2122 f2fs_mark_inode_dirty_sync(inode
, true);
2126 static inline void set_inode_flag(struct inode
*inode
, int flag
)
2128 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
2129 set_bit(flag
, &F2FS_I(inode
)->flags
);
2130 __mark_inode_dirty_flag(inode
, flag
, true);
2133 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
2135 return test_bit(flag
, &F2FS_I(inode
)->flags
);
2138 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
2140 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
2141 clear_bit(flag
, &F2FS_I(inode
)->flags
);
2142 __mark_inode_dirty_flag(inode
, flag
, false);
2145 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
2147 F2FS_I(inode
)->i_acl_mode
= mode
;
2148 set_inode_flag(inode
, FI_ACL_MODE
);
2149 f2fs_mark_inode_dirty_sync(inode
, false);
2152 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
2158 f2fs_mark_inode_dirty_sync(inode
, true);
2161 static inline void f2fs_i_blocks_write(struct inode
*inode
,
2162 block_t diff
, bool add
, bool claim
)
2164 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2165 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2167 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2170 dquot_claim_block(inode
, diff
);
2172 dquot_alloc_block_nofail(inode
, diff
);
2174 dquot_free_block(inode
, diff
);
2177 f2fs_mark_inode_dirty_sync(inode
, true);
2178 if (clean
|| recover
)
2179 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2182 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
2184 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2185 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2187 if (i_size_read(inode
) == i_size
)
2190 i_size_write(inode
, i_size
);
2191 f2fs_mark_inode_dirty_sync(inode
, true);
2192 if (clean
|| recover
)
2193 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2196 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
2198 F2FS_I(inode
)->i_current_depth
= depth
;
2199 f2fs_mark_inode_dirty_sync(inode
, true);
2202 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
2204 F2FS_I(inode
)->i_xattr_nid
= xnid
;
2205 f2fs_mark_inode_dirty_sync(inode
, true);
2208 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
2210 F2FS_I(inode
)->i_pino
= pino
;
2211 f2fs_mark_inode_dirty_sync(inode
, true);
2214 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
2216 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
2218 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
2219 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
2220 if (ri
->i_inline
& F2FS_INLINE_DATA
)
2221 set_bit(FI_INLINE_DATA
, &fi
->flags
);
2222 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
2223 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
2224 if (ri
->i_inline
& F2FS_DATA_EXIST
)
2225 set_bit(FI_DATA_EXIST
, &fi
->flags
);
2226 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
2227 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
2228 if (ri
->i_inline
& F2FS_EXTRA_ATTR
)
2229 set_bit(FI_EXTRA_ATTR
, &fi
->flags
);
2232 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
2236 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
2237 ri
->i_inline
|= F2FS_INLINE_XATTR
;
2238 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
2239 ri
->i_inline
|= F2FS_INLINE_DATA
;
2240 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
2241 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
2242 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
2243 ri
->i_inline
|= F2FS_DATA_EXIST
;
2244 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
2245 ri
->i_inline
|= F2FS_INLINE_DOTS
;
2246 if (is_inode_flag_set(inode
, FI_EXTRA_ATTR
))
2247 ri
->i_inline
|= F2FS_EXTRA_ATTR
;
2250 static inline int f2fs_has_extra_attr(struct inode
*inode
)
2252 return is_inode_flag_set(inode
, FI_EXTRA_ATTR
);
2255 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
2257 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
2260 static inline unsigned int addrs_per_inode(struct inode
*inode
)
2262 return CUR_ADDRS_PER_INODE(inode
) - F2FS_INLINE_XATTR_ADDRS(inode
);
2265 static inline void *inline_xattr_addr(struct inode
*inode
, struct page
*page
)
2267 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2269 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
2270 F2FS_INLINE_XATTR_ADDRS(inode
)]);
2273 static inline int inline_xattr_size(struct inode
*inode
)
2275 return get_inline_xattr_addrs(inode
) * sizeof(__le32
);
2278 static inline int f2fs_has_inline_data(struct inode
*inode
)
2280 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
2283 static inline int f2fs_exist_data(struct inode
*inode
)
2285 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
2288 static inline int f2fs_has_inline_dots(struct inode
*inode
)
2290 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
2293 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
2295 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
2298 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
2300 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
2303 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
2305 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
2308 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
2310 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
2313 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
2315 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
2318 static inline void *inline_data_addr(struct inode
*inode
, struct page
*page
)
2320 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2321 int extra_size
= get_extra_isize(inode
);
2323 return (void *)&(ri
->i_addr
[extra_size
+ DEF_INLINE_RESERVED_SIZE
]);
2326 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
2328 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
2331 static inline void f2fs_dentry_kunmap(struct inode
*dir
, struct page
*page
)
2333 if (!f2fs_has_inline_dentry(dir
))
2337 static inline int is_file(struct inode
*inode
, int type
)
2339 return F2FS_I(inode
)->i_advise
& type
;
2342 static inline void set_file(struct inode
*inode
, int type
)
2344 F2FS_I(inode
)->i_advise
|= type
;
2345 f2fs_mark_inode_dirty_sync(inode
, true);
2348 static inline void clear_file(struct inode
*inode
, int type
)
2350 F2FS_I(inode
)->i_advise
&= ~type
;
2351 f2fs_mark_inode_dirty_sync(inode
, true);
2354 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
2359 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2361 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
2362 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
2363 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
2366 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
2367 file_keep_isize(inode
) ||
2368 i_size_read(inode
) & PAGE_MASK
)
2371 down_read(&F2FS_I(inode
)->i_sem
);
2372 ret
= F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
2373 up_read(&F2FS_I(inode
)->i_sem
);
2378 static inline int f2fs_readonly(struct super_block
*sb
)
2380 return sb
->s_flags
& SB_RDONLY
;
2383 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
2385 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
2388 static inline bool is_dot_dotdot(const struct qstr
*str
)
2390 if (str
->len
== 1 && str
->name
[0] == '.')
2393 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
2399 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
2401 if (!test_opt(F2FS_I_SB(inode
), EXTENT_CACHE
) ||
2402 is_inode_flag_set(inode
, FI_NO_EXTENT
))
2405 return S_ISREG(inode
->i_mode
);
2408 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
2409 size_t size
, gfp_t flags
)
2411 #ifdef CONFIG_F2FS_FAULT_INJECTION
2412 if (time_to_inject(sbi
, FAULT_KMALLOC
)) {
2413 f2fs_show_injection_info(FAULT_KMALLOC
);
2417 return kmalloc(size
, flags
);
2420 static inline int get_extra_isize(struct inode
*inode
)
2422 return F2FS_I(inode
)->i_extra_isize
/ sizeof(__le32
);
2425 static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block
*sb
);
2426 static inline int get_inline_xattr_addrs(struct inode
*inode
)
2428 return F2FS_I(inode
)->i_inline_xattr_size
;
2431 #define get_inode_mode(i) \
2432 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2433 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2435 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2436 (offsetof(struct f2fs_inode, i_extra_end) - \
2437 offsetof(struct f2fs_inode, i_extra_isize)) \
2439 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2440 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2441 ((offsetof(typeof(*f2fs_inode), field) + \
2442 sizeof((f2fs_inode)->field)) \
2443 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2445 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2449 spin_lock(&sbi
->iostat_lock
);
2450 for (i
= 0; i
< NR_IO_TYPE
; i
++)
2451 sbi
->write_iostat
[i
] = 0;
2452 spin_unlock(&sbi
->iostat_lock
);
2455 static inline void f2fs_update_iostat(struct f2fs_sb_info
*sbi
,
2456 enum iostat_type type
, unsigned long long io_bytes
)
2458 if (!sbi
->iostat_enable
)
2460 spin_lock(&sbi
->iostat_lock
);
2461 sbi
->write_iostat
[type
] += io_bytes
;
2463 if (type
== APP_WRITE_IO
|| type
== APP_DIRECT_IO
)
2464 sbi
->write_iostat
[APP_BUFFERED_IO
] =
2465 sbi
->write_iostat
[APP_WRITE_IO
] -
2466 sbi
->write_iostat
[APP_DIRECT_IO
];
2467 spin_unlock(&sbi
->iostat_lock
);
2470 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO(fio->type) == META && \
2471 (!is_read_io(fio->op) || fio->is_meta))
2473 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info
*sbi
,
2474 block_t blkaddr
, int type
);
2475 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2476 static inline void verify_blkaddr(struct f2fs_sb_info
*sbi
,
2477 block_t blkaddr
, int type
)
2479 if (!f2fs_is_valid_blkaddr(sbi
, blkaddr
, type
)) {
2480 f2fs_msg(sbi
->sb
, KERN_ERR
,
2481 "invalid blkaddr: %u, type: %d, run fsck to fix.",
2483 f2fs_bug_on(sbi
, 1);
2487 static inline bool __is_valid_data_blkaddr(block_t blkaddr
)
2489 if (blkaddr
== NEW_ADDR
|| blkaddr
== NULL_ADDR
)
2494 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info
*sbi
,
2497 if (!__is_valid_data_blkaddr(blkaddr
))
2499 verify_blkaddr(sbi
, blkaddr
, DATA_GENERIC
);
2506 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2507 void truncate_data_blocks(struct dnode_of_data
*dn
);
2508 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2509 int f2fs_truncate(struct inode
*inode
);
2510 int f2fs_getattr(const struct path
*path
, struct kstat
*stat
,
2511 u32 request_mask
, unsigned int flags
);
2512 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2513 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2514 int truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2515 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2516 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2521 void f2fs_set_inode_flags(struct inode
*inode
);
2522 bool f2fs_inode_chksum_verify(struct f2fs_sb_info
*sbi
, struct page
*page
);
2523 void f2fs_inode_chksum_set(struct f2fs_sb_info
*sbi
, struct page
*page
);
2524 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2525 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2526 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2527 int update_inode(struct inode
*inode
, struct page
*node_page
);
2528 int update_inode_page(struct inode
*inode
);
2529 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2530 void f2fs_evict_inode(struct inode
*inode
);
2531 void handle_failed_inode(struct inode
*inode
);
2536 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2541 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2542 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2543 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2544 f2fs_hash_t namehash
, int *max_slots
,
2545 struct f2fs_dentry_ptr
*d
);
2546 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2547 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2548 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2549 struct f2fs_dentry_ptr
*d
);
2550 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2551 const struct qstr
*new_name
,
2552 const struct qstr
*orig_name
, struct page
*dpage
);
2553 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2554 unsigned int current_depth
);
2555 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2556 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2557 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2558 struct fscrypt_name
*fname
, struct page
**res_page
);
2559 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2560 const struct qstr
*child
, struct page
**res_page
);
2561 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2562 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2563 struct page
**page
);
2564 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2565 struct page
*page
, struct inode
*inode
);
2566 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2567 const struct qstr
*name
, f2fs_hash_t name_hash
,
2568 unsigned int bit_pos
);
2569 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2570 const struct qstr
*orig_name
,
2571 struct inode
*inode
, nid_t ino
, umode_t mode
);
2572 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2573 struct inode
*inode
, nid_t ino
, umode_t mode
);
2574 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2575 struct inode
*inode
, nid_t ino
, umode_t mode
);
2576 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2577 struct inode
*dir
, struct inode
*inode
);
2578 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2579 bool f2fs_empty_dir(struct inode
*dir
);
2581 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2583 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2584 inode
, inode
->i_ino
, inode
->i_mode
);
2590 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2591 void f2fs_inode_synced(struct inode
*inode
);
2592 int f2fs_enable_quota_files(struct f2fs_sb_info
*sbi
, bool rdonly
);
2593 void f2fs_quota_off_umount(struct super_block
*sb
);
2594 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2595 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2596 extern __printf(3, 4)
2597 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2598 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2603 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
,
2604 struct fscrypt_name
*fname
);
2609 struct dnode_of_data
;
2612 int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
);
2613 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2614 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2615 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2616 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2617 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2618 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2619 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2620 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2621 int truncate_xattr_node(struct inode
*inode
);
2622 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2623 int remove_inode_page(struct inode
*inode
);
2624 struct page
*new_inode_page(struct inode
*inode
);
2625 struct page
*new_node_page(struct dnode_of_data
*dn
, unsigned int ofs
);
2626 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2627 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2628 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2629 void move_node_page(struct page
*node_page
, int gc_type
);
2630 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2631 struct writeback_control
*wbc
, bool atomic
);
2632 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
,
2633 bool do_balance
, enum iostat_type io_type
);
2634 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
, bool mount
);
2635 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2636 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2637 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2638 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2639 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2640 int recover_xattr_data(struct inode
*inode
, struct page
*page
,
2642 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2643 int restore_node_summary(struct f2fs_sb_info
*sbi
,
2644 unsigned int segno
, struct f2fs_summary_block
*sum
);
2645 void flush_nat_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2646 int build_node_manager(struct f2fs_sb_info
*sbi
);
2647 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2648 int __init
create_node_manager_caches(void);
2649 void destroy_node_manager_caches(void);
2654 bool need_SSR(struct f2fs_sb_info
*sbi
);
2655 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2656 void drop_inmem_pages_all(struct f2fs_sb_info
*sbi
);
2657 void drop_inmem_pages(struct inode
*inode
);
2658 void drop_inmem_page(struct inode
*inode
, struct page
*page
);
2659 int commit_inmem_pages(struct inode
*inode
);
2660 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2661 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2662 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
, nid_t ino
);
2663 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2664 int f2fs_flush_device_cache(struct f2fs_sb_info
*sbi
);
2665 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2666 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2667 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2668 void init_discard_policy(struct discard_policy
*dpolicy
, int discard_type
,
2669 unsigned int granularity
);
2670 void stop_discard_thread(struct f2fs_sb_info
*sbi
);
2671 bool f2fs_wait_discard_bios(struct f2fs_sb_info
*sbi
);
2672 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2673 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2674 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2675 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2676 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2677 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2678 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2679 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2680 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
,
2681 enum iostat_type io_type
);
2682 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2683 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2684 int rewrite_data_page(struct f2fs_io_info
*fio
);
2685 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2686 block_t old_blkaddr
, block_t new_blkaddr
,
2687 bool recover_curseg
, bool recover_newaddr
);
2688 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2689 block_t old_addr
, block_t new_addr
,
2690 unsigned char version
, bool recover_curseg
,
2691 bool recover_newaddr
);
2692 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2693 block_t old_blkaddr
, block_t
*new_blkaddr
,
2694 struct f2fs_summary
*sum
, int type
,
2695 struct f2fs_io_info
*fio
, bool add_list
);
2696 void f2fs_wait_on_page_writeback(struct page
*page
,
2697 enum page_type type
, bool ordered
);
2698 void f2fs_wait_on_block_writeback(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2699 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2700 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2701 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2702 unsigned int val
, int alloc
);
2703 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2704 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2705 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2706 int __init
create_segment_manager_caches(void);
2707 void destroy_segment_manager_caches(void);
2712 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2713 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2714 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2715 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2716 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info
*sbi
,
2717 block_t blkaddr
, int type
);
2718 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2719 int type
, bool sync
);
2720 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2721 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2722 long nr_to_write
, enum iostat_type io_type
);
2723 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2724 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2725 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2726 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2727 void set_dirty_device(struct f2fs_sb_info
*sbi
, nid_t ino
,
2728 unsigned int devidx
, int type
);
2729 bool is_dirty_device(struct f2fs_sb_info
*sbi
, nid_t ino
,
2730 unsigned int devidx
, int type
);
2731 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2732 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2733 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2734 void add_orphan_inode(struct inode
*inode
);
2735 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2736 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2737 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2738 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2739 void remove_dirty_inode(struct inode
*inode
);
2740 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2741 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2742 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2743 int __init
create_checkpoint_caches(void);
2744 void destroy_checkpoint_caches(void);
2749 void f2fs_submit_merged_write(struct f2fs_sb_info
*sbi
, enum page_type type
);
2750 void f2fs_submit_merged_write_cond(struct f2fs_sb_info
*sbi
,
2751 struct inode
*inode
, nid_t ino
, pgoff_t idx
,
2752 enum page_type type
);
2753 void f2fs_flush_merged_writes(struct f2fs_sb_info
*sbi
);
2754 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2755 int f2fs_submit_page_write(struct f2fs_io_info
*fio
);
2756 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2757 block_t blk_addr
, struct bio
*bio
);
2758 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2759 void set_data_blkaddr(struct dnode_of_data
*dn
);
2760 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2761 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2762 int reserve_new_block(struct dnode_of_data
*dn
);
2763 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2764 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2765 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2766 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2767 int op_flags
, bool for_write
);
2768 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2769 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2771 struct page
*get_new_data_page(struct inode
*inode
,
2772 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2773 int do_write_data_page(struct f2fs_io_info
*fio
);
2774 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2775 int create
, int flag
);
2776 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2777 u64 start
, u64 len
);
2778 void f2fs_set_page_dirty_nobuffers(struct page
*page
);
2779 int __f2fs_write_data_pages(struct address_space
*mapping
,
2780 struct writeback_control
*wbc
,
2781 enum iostat_type io_type
);
2782 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2783 unsigned int length
);
2784 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2785 #ifdef CONFIG_MIGRATION
2786 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2787 struct page
*page
, enum migrate_mode mode
);
2793 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2794 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2795 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2796 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
,
2797 unsigned int segno
);
2798 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2803 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2804 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2809 #ifdef CONFIG_F2FS_STAT_FS
2810 struct f2fs_stat_info
{
2811 struct list_head stat_list
;
2812 struct f2fs_sb_info
*sbi
;
2813 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2814 int main_area_segs
, main_area_sections
, main_area_zones
;
2815 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2816 unsigned long long hit_total
, total_ext
;
2817 int ext_tree
, zombie_tree
, ext_node
;
2818 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_imeta
;
2819 int ndirty_data
, ndirty_qdata
;
2821 unsigned int ndirty_dirs
, ndirty_files
, nquota_files
, ndirty_all
;
2822 int nats
, dirty_nats
, sits
, dirty_sits
;
2823 int free_nids
, avail_nids
, alloc_nids
;
2824 int total_count
, utilization
;
2825 int bg_gc
, nr_wb_cp_data
, nr_wb_data
;
2826 int nr_flushing
, nr_flushed
, flush_list_empty
;
2827 int nr_discarding
, nr_discarded
;
2829 unsigned int undiscard_blks
;
2830 int inline_xattr
, inline_inode
, inline_dir
, append
, update
, orphans
;
2831 int aw_cnt
, max_aw_cnt
, vw_cnt
, max_vw_cnt
;
2832 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2833 unsigned int bimodal
, avg_vblocks
;
2834 int util_free
, util_valid
, util_invalid
;
2835 int rsvd_segs
, overp_segs
;
2836 int dirty_count
, node_pages
, meta_pages
;
2837 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2838 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2839 int bg_node_segs
, bg_data_segs
;
2840 int tot_blks
, data_blks
, node_blks
;
2841 int bg_data_blks
, bg_node_blks
;
2842 int curseg
[NR_CURSEG_TYPE
];
2843 int cursec
[NR_CURSEG_TYPE
];
2844 int curzone
[NR_CURSEG_TYPE
];
2846 unsigned int segment_count
[2];
2847 unsigned int block_count
[2];
2848 unsigned int inplace_count
;
2849 unsigned long long base_mem
, cache_mem
, page_mem
;
2852 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
2854 return (struct f2fs_stat_info
*)sbi
->stat_info
;
2857 #define stat_inc_cp_count(si) ((si)->cp_count++)
2858 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2859 #define stat_inc_call_count(si) ((si)->call_count++)
2860 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2861 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2862 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2863 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2864 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2865 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2866 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2867 #define stat_inc_inline_xattr(inode) \
2869 if (f2fs_has_inline_xattr(inode)) \
2870 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2872 #define stat_dec_inline_xattr(inode) \
2874 if (f2fs_has_inline_xattr(inode)) \
2875 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2877 #define stat_inc_inline_inode(inode) \
2879 if (f2fs_has_inline_data(inode)) \
2880 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2882 #define stat_dec_inline_inode(inode) \
2884 if (f2fs_has_inline_data(inode)) \
2885 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2887 #define stat_inc_inline_dir(inode) \
2889 if (f2fs_has_inline_dentry(inode)) \
2890 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2892 #define stat_dec_inline_dir(inode) \
2894 if (f2fs_has_inline_dentry(inode)) \
2895 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2897 #define stat_inc_seg_type(sbi, curseg) \
2898 ((sbi)->segment_count[(curseg)->alloc_type]++)
2899 #define stat_inc_block_count(sbi, curseg) \
2900 ((sbi)->block_count[(curseg)->alloc_type]++)
2901 #define stat_inc_inplace_blocks(sbi) \
2902 (atomic_inc(&(sbi)->inplace_count))
2903 #define stat_inc_atomic_write(inode) \
2904 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2905 #define stat_dec_atomic_write(inode) \
2906 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2907 #define stat_update_max_atomic_write(inode) \
2909 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2910 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2912 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2914 #define stat_inc_volatile_write(inode) \
2915 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2916 #define stat_dec_volatile_write(inode) \
2917 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2918 #define stat_update_max_volatile_write(inode) \
2920 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2921 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2923 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2925 #define stat_inc_seg_count(sbi, type, gc_type) \
2927 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2929 if ((type) == SUM_TYPE_DATA) { \
2931 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2934 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2938 #define stat_inc_tot_blk_count(si, blks) \
2939 ((si)->tot_blks += (blks))
2941 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2943 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2944 stat_inc_tot_blk_count(si, blks); \
2945 si->data_blks += (blks); \
2946 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2949 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2951 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2952 stat_inc_tot_blk_count(si, blks); \
2953 si->node_blks += (blks); \
2954 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2957 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
2958 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
2959 int __init
f2fs_create_root_stats(void);
2960 void f2fs_destroy_root_stats(void);
2962 #define stat_inc_cp_count(si) do { } while (0)
2963 #define stat_inc_bg_cp_count(si) do { } while (0)
2964 #define stat_inc_call_count(si) do { } while (0)
2965 #define stat_inc_bggc_count(si) do { } while (0)
2966 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
2967 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
2968 #define stat_inc_total_hit(sb) do { } while (0)
2969 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
2970 #define stat_inc_largest_node_hit(sbi) do { } while (0)
2971 #define stat_inc_cached_node_hit(sbi) do { } while (0)
2972 #define stat_inc_inline_xattr(inode) do { } while (0)
2973 #define stat_dec_inline_xattr(inode) do { } while (0)
2974 #define stat_inc_inline_inode(inode) do { } while (0)
2975 #define stat_dec_inline_inode(inode) do { } while (0)
2976 #define stat_inc_inline_dir(inode) do { } while (0)
2977 #define stat_dec_inline_dir(inode) do { } while (0)
2978 #define stat_inc_atomic_write(inode) do { } while (0)
2979 #define stat_dec_atomic_write(inode) do { } while (0)
2980 #define stat_update_max_atomic_write(inode) do { } while (0)
2981 #define stat_inc_volatile_write(inode) do { } while (0)
2982 #define stat_dec_volatile_write(inode) do { } while (0)
2983 #define stat_update_max_volatile_write(inode) do { } while (0)
2984 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
2985 #define stat_inc_block_count(sbi, curseg) do { } while (0)
2986 #define stat_inc_inplace_blocks(sbi) do { } while (0)
2987 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2988 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
2989 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2990 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
2992 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
2993 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
2994 static inline int __init
f2fs_create_root_stats(void) { return 0; }
2995 static inline void f2fs_destroy_root_stats(void) { }
2998 extern const struct file_operations f2fs_dir_operations
;
2999 extern const struct file_operations f2fs_file_operations
;
3000 extern const struct inode_operations f2fs_file_inode_operations
;
3001 extern const struct address_space_operations f2fs_dblock_aops
;
3002 extern const struct address_space_operations f2fs_node_aops
;
3003 extern const struct address_space_operations f2fs_meta_aops
;
3004 extern const struct inode_operations f2fs_dir_inode_operations
;
3005 extern const struct inode_operations f2fs_symlink_inode_operations
;
3006 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
3007 extern const struct inode_operations f2fs_special_inode_operations
;
3008 extern struct kmem_cache
*inode_entry_slab
;
3013 bool f2fs_may_inline_data(struct inode
*inode
);
3014 bool f2fs_may_inline_dentry(struct inode
*inode
);
3015 void read_inline_data(struct page
*page
, struct page
*ipage
);
3016 void truncate_inline_inode(struct inode
*inode
, struct page
*ipage
, u64 from
);
3017 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
3018 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
3019 int f2fs_convert_inline_inode(struct inode
*inode
);
3020 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
3021 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
3022 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
3023 struct fscrypt_name
*fname
, struct page
**res_page
);
3024 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
3025 struct page
*ipage
);
3026 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
3027 const struct qstr
*orig_name
,
3028 struct inode
*inode
, nid_t ino
, umode_t mode
);
3029 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
3030 struct inode
*dir
, struct inode
*inode
);
3031 bool f2fs_empty_inline_dir(struct inode
*dir
);
3032 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
3033 struct fscrypt_str
*fstr
);
3034 int f2fs_inline_data_fiemap(struct inode
*inode
,
3035 struct fiemap_extent_info
*fieinfo
,
3036 __u64 start
, __u64 len
);
3041 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
3042 struct shrink_control
*sc
);
3043 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
3044 struct shrink_control
*sc
);
3045 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
3046 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
3051 struct rb_entry
*__lookup_rb_tree(struct rb_root
*root
,
3052 struct rb_entry
*cached_re
, unsigned int ofs
);
3053 struct rb_node
**__lookup_rb_tree_for_insert(struct f2fs_sb_info
*sbi
,
3054 struct rb_root
*root
, struct rb_node
**parent
,
3056 struct rb_entry
*__lookup_rb_tree_ret(struct rb_root
*root
,
3057 struct rb_entry
*cached_re
, unsigned int ofs
,
3058 struct rb_entry
**prev_entry
, struct rb_entry
**next_entry
,
3059 struct rb_node
***insert_p
, struct rb_node
**insert_parent
,
3061 bool __check_rb_tree_consistence(struct f2fs_sb_info
*sbi
,
3062 struct rb_root
*root
);
3063 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
3064 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
3065 void f2fs_drop_extent_tree(struct inode
*inode
);
3066 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
3067 void f2fs_destroy_extent_tree(struct inode
*inode
);
3068 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
3069 struct extent_info
*ei
);
3070 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
3071 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
3072 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
3073 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
3074 int __init
create_extent_cache(void);
3075 void destroy_extent_cache(void);
3080 int __init
f2fs_init_sysfs(void);
3081 void f2fs_exit_sysfs(void);
3082 int f2fs_register_sysfs(struct f2fs_sb_info
*sbi
);
3083 void f2fs_unregister_sysfs(struct f2fs_sb_info
*sbi
);
3088 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
3090 return file_is_encrypt(inode
);
3093 static inline bool f2fs_encrypted_file(struct inode
*inode
)
3095 return f2fs_encrypted_inode(inode
) && S_ISREG(inode
->i_mode
);
3098 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
3100 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3101 file_set_encrypt(inode
);
3102 inode
->i_flags
|= S_ENCRYPTED
;
3106 static inline bool f2fs_bio_encrypted(struct bio
*bio
)
3108 return bio
->bi_private
!= NULL
;
3111 static inline int f2fs_sb_has_crypto(struct super_block
*sb
)
3113 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_ENCRYPT
);
3116 static inline int f2fs_sb_mounted_blkzoned(struct super_block
*sb
)
3118 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_BLKZONED
);
3121 static inline int f2fs_sb_has_extra_attr(struct super_block
*sb
)
3123 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_EXTRA_ATTR
);
3126 static inline int f2fs_sb_has_project_quota(struct super_block
*sb
)
3128 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_PRJQUOTA
);
3131 static inline int f2fs_sb_has_inode_chksum(struct super_block
*sb
)
3133 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_INODE_CHKSUM
);
3136 static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block
*sb
)
3138 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR
);
3141 static inline int f2fs_sb_has_quota_ino(struct super_block
*sb
)
3143 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_QUOTA_INO
);
3146 #ifdef CONFIG_BLK_DEV_ZONED
3147 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
3148 struct block_device
*bdev
, block_t blkaddr
)
3150 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
3153 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
3154 if (FDEV(i
).bdev
== bdev
)
3155 return FDEV(i
).blkz_type
[zno
];
3160 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
3162 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
3164 return blk_queue_discard(q
) || f2fs_sb_mounted_blkzoned(sbi
->sb
);
3167 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
3169 clear_opt(sbi
, ADAPTIVE
);
3170 clear_opt(sbi
, LFS
);
3173 case F2FS_MOUNT_ADAPTIVE
:
3174 set_opt(sbi
, ADAPTIVE
);
3176 case F2FS_MOUNT_LFS
:
3182 static inline bool f2fs_may_encrypt(struct inode
*inode
)
3184 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3185 umode_t mode
= inode
->i_mode
;
3187 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));