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/cred.h>
23 #include <linux/vmalloc.h>
24 #include <linux/bio.h>
25 #include <linux/blkdev.h>
26 #include <linux/quotaops.h>
27 #include <crypto/hash.h>
29 #define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
30 #include <linux/fscrypt.h>
32 #ifdef CONFIG_F2FS_CHECK_FS
33 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
35 #define f2fs_bug_on(sbi, condition) \
37 if (unlikely(condition)) { \
39 set_sbi_flag(sbi, SBI_NEED_FSCK); \
44 #ifdef CONFIG_F2FS_FAULT_INJECTION
62 struct f2fs_fault_info
{
64 unsigned int inject_rate
;
65 unsigned int inject_type
;
68 extern char *fault_name
[FAULT_MAX
];
69 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
75 #define F2FS_MOUNT_BG_GC 0x00000001
76 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
77 #define F2FS_MOUNT_DISCARD 0x00000004
78 #define F2FS_MOUNT_NOHEAP 0x00000008
79 #define F2FS_MOUNT_XATTR_USER 0x00000010
80 #define F2FS_MOUNT_POSIX_ACL 0x00000020
81 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
82 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
83 #define F2FS_MOUNT_INLINE_DATA 0x00000100
84 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
85 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
86 #define F2FS_MOUNT_NOBARRIER 0x00000800
87 #define F2FS_MOUNT_FASTBOOT 0x00001000
88 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
89 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
90 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
91 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
92 #define F2FS_MOUNT_ADAPTIVE 0x00020000
93 #define F2FS_MOUNT_LFS 0x00040000
94 #define F2FS_MOUNT_USRQUOTA 0x00080000
95 #define F2FS_MOUNT_GRPQUOTA 0x00100000
96 #define F2FS_MOUNT_PRJQUOTA 0x00200000
97 #define F2FS_MOUNT_QUOTA 0x00400000
98 #define F2FS_MOUNT_INLINE_XATTR_SIZE 0x00800000
99 #define F2FS_MOUNT_RESERVE_ROOT 0x01000000
101 #define F2FS_OPTION(sbi) ((sbi)->mount_opt)
102 #define clear_opt(sbi, option) (F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
103 #define set_opt(sbi, option) (F2FS_OPTION(sbi).opt |= F2FS_MOUNT_##option)
104 #define test_opt(sbi, option) (F2FS_OPTION(sbi).opt & F2FS_MOUNT_##option)
106 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
107 typecheck(unsigned long long, b) && \
108 ((long long)((a) - (b)) > 0))
110 typedef u32 block_t
; /*
111 * should not change u32, since it is the on-disk block
112 * address format, __le32.
116 struct f2fs_mount_info
{
118 int write_io_size_bits
; /* Write IO size bits */
119 block_t root_reserved_blocks
; /* root reserved blocks */
120 kuid_t s_resuid
; /* reserved blocks for uid */
121 kgid_t s_resgid
; /* reserved blocks for gid */
122 int active_logs
; /* # of active logs */
123 int inline_xattr_size
; /* inline xattr size */
124 #ifdef CONFIG_F2FS_FAULT_INJECTION
125 struct f2fs_fault_info fault_info
; /* For fault injection */
128 /* Names of quota files with journalled quota */
129 char *s_qf_names
[MAXQUOTAS
];
130 int s_jquota_fmt
; /* Format of quota to use */
132 /* For which write hints are passed down to block layer */
134 int alloc_mode
; /* segment allocation policy */
135 int fsync_mode
; /* fsync policy */
136 bool test_dummy_encryption
; /* test dummy encryption */
139 #define F2FS_FEATURE_ENCRYPT 0x0001
140 #define F2FS_FEATURE_BLKZONED 0x0002
141 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
142 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
143 #define F2FS_FEATURE_PRJQUOTA 0x0010
144 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
145 #define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR 0x0040
146 #define F2FS_FEATURE_QUOTA_INO 0x0080
147 #define F2FS_FEATURE_INODE_CRTIME 0x0100
148 #define F2FS_FEATURE_LOST_FOUND 0x0200
149 #define F2FS_FEATURE_VERITY 0x0400 /* reserved */
151 #define F2FS_HAS_FEATURE(sb, mask) \
152 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
153 #define F2FS_SET_FEATURE(sb, mask) \
154 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
155 #define F2FS_CLEAR_FEATURE(sb, mask) \
156 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
159 * Default values for user and/or group using reserved blocks
161 #define F2FS_DEF_RESUID 0
162 #define F2FS_DEF_RESGID 0
165 * For checkpoint manager
172 #define CP_UMOUNT 0x00000001
173 #define CP_FASTBOOT 0x00000002
174 #define CP_SYNC 0x00000004
175 #define CP_RECOVERY 0x00000008
176 #define CP_DISCARD 0x00000010
177 #define CP_TRIMMED 0x00000020
179 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
180 #define DEF_MAX_DISCARD_REQUEST 8 /* issue 8 discards per round */
181 #define DEF_MAX_DISCARD_LEN 512 /* Max. 2MB per discard */
182 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
183 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
184 #define DEF_DISCARD_URGENT_UTIL 80 /* do more discard over 80% */
185 #define DEF_CP_INTERVAL 60 /* 60 secs */
186 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
196 * For CP/NAT/SIT/SSA readahead
206 /* for the list of ino */
208 ORPHAN_INO
, /* for orphan ino list */
209 APPEND_INO
, /* for append ino list */
210 UPDATE_INO
, /* for update ino list */
211 TRANS_DIR_INO
, /* for trasactions dir ino list */
212 FLUSH_INO
, /* for multiple device flushing */
213 MAX_INO_ENTRY
, /* max. list */
217 struct list_head list
; /* list head */
218 nid_t ino
; /* inode number */
219 unsigned int dirty_device
; /* dirty device bitmap */
222 /* for the list of inodes to be GCed */
224 struct list_head list
; /* list head */
225 struct inode
*inode
; /* vfs inode pointer */
228 /* for the bitmap indicate blocks to be discarded */
229 struct discard_entry
{
230 struct list_head list
; /* list head */
231 block_t start_blkaddr
; /* start blockaddr of current segment */
232 unsigned char discard_map
[SIT_VBLOCK_MAP_SIZE
]; /* segment discard bitmap */
235 /* default discard granularity of inner discard thread, unit: block count */
236 #define DEFAULT_DISCARD_GRANULARITY 16
238 /* max discard pend list number */
239 #define MAX_PLIST_NUM 512
240 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
241 (MAX_PLIST_NUM - 1) : (blk_num - 1))
249 struct discard_info
{
250 block_t lstart
; /* logical start address */
251 block_t len
; /* length */
252 block_t start
; /* actual start address in dev */
256 struct rb_node rb_node
; /* rb node located in rb-tree */
259 block_t lstart
; /* logical start address */
260 block_t len
; /* length */
261 block_t start
; /* actual start address in dev */
263 struct discard_info di
; /* discard info */
266 struct list_head list
; /* command list */
267 struct completion wait
; /* compleation */
268 struct block_device
*bdev
; /* bdev */
269 unsigned short ref
; /* reference count */
270 unsigned char state
; /* state */
271 int error
; /* bio error */
282 struct discard_policy
{
283 int type
; /* type of discard */
284 unsigned int min_interval
; /* used for candidates exist */
285 unsigned int max_interval
; /* used for candidates not exist */
286 unsigned int max_requests
; /* # of discards issued per round */
287 unsigned int io_aware_gran
; /* minimum granularity discard not be aware of I/O */
288 bool io_aware
; /* issue discard in idle time */
289 bool sync
; /* submit discard with REQ_SYNC flag */
290 unsigned int granularity
; /* discard granularity */
293 struct discard_cmd_control
{
294 struct task_struct
*f2fs_issue_discard
; /* discard thread */
295 struct list_head entry_list
; /* 4KB discard entry list */
296 struct list_head pend_list
[MAX_PLIST_NUM
];/* store pending entries */
297 struct list_head wait_list
; /* store on-flushing entries */
298 struct list_head fstrim_list
; /* in-flight discard from fstrim */
299 wait_queue_head_t discard_wait_queue
; /* waiting queue for wake-up */
300 unsigned int discard_wake
; /* to wake up discard thread */
301 struct mutex cmd_lock
;
302 unsigned int nr_discards
; /* # of discards in the list */
303 unsigned int max_discards
; /* max. discards to be issued */
304 unsigned int discard_granularity
; /* discard granularity */
305 unsigned int undiscard_blks
; /* # of undiscard blocks */
306 atomic_t issued_discard
; /* # of issued discard */
307 atomic_t issing_discard
; /* # of issing discard */
308 atomic_t discard_cmd_cnt
; /* # of cached cmd count */
309 struct rb_root root
; /* root of discard rb-tree */
312 /* for the list of fsync inodes, used only during recovery */
313 struct fsync_inode_entry
{
314 struct list_head list
; /* list head */
315 struct inode
*inode
; /* vfs inode pointer */
316 block_t blkaddr
; /* block address locating the last fsync */
317 block_t last_dentry
; /* block address locating the last dentry */
320 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
321 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
323 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
324 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
325 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
326 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
328 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
329 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
331 static inline int update_nats_in_cursum(struct f2fs_journal
*journal
, int i
)
333 int before
= nats_in_cursum(journal
);
335 journal
->n_nats
= cpu_to_le16(before
+ i
);
339 static inline int update_sits_in_cursum(struct f2fs_journal
*journal
, int i
)
341 int before
= sits_in_cursum(journal
);
343 journal
->n_sits
= cpu_to_le16(before
+ i
);
347 static inline bool __has_cursum_space(struct f2fs_journal
*journal
,
350 if (type
== NAT_JOURNAL
)
351 return size
<= MAX_NAT_JENTRIES(journal
);
352 return size
<= MAX_SIT_JENTRIES(journal
);
358 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
359 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
360 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
362 #define F2FS_IOCTL_MAGIC 0xf5
363 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
364 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
365 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
366 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
367 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
368 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
369 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
370 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
371 struct f2fs_defragment)
372 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
373 struct f2fs_move_range)
374 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
375 struct f2fs_flush_device)
376 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
377 struct f2fs_gc_range)
378 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
379 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
380 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
381 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
383 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
384 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
385 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
388 * should be same as XFS_IOC_GOINGDOWN.
389 * Flags for going down operation used by FS_IOC_GOINGDOWN
391 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
392 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
393 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
394 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
395 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
397 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
399 * ioctl commands in 32 bit emulation
401 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
402 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
403 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
406 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
407 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
409 struct f2fs_gc_range
{
415 struct f2fs_defragment
{
420 struct f2fs_move_range
{
421 u32 dst_fd
; /* destination fd */
422 u64 pos_in
; /* start position in src_fd */
423 u64 pos_out
; /* start position in dst_fd */
424 u64 len
; /* size to move */
427 struct f2fs_flush_device
{
428 u32 dev_num
; /* device number to flush */
429 u32 segments
; /* # of segments to flush */
432 /* for inline stuff */
433 #define DEF_INLINE_RESERVED_SIZE 1
434 #define DEF_MIN_INLINE_SIZE 1
435 static inline int get_extra_isize(struct inode
*inode
);
436 static inline int get_inline_xattr_addrs(struct inode
*inode
);
437 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
438 (CUR_ADDRS_PER_INODE(inode) - \
439 get_inline_xattr_addrs(inode) - \
440 DEF_INLINE_RESERVED_SIZE))
443 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
444 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
446 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
447 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
448 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
449 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
450 NR_INLINE_DENTRY(inode) + \
451 INLINE_DENTRY_BITMAP_SIZE(inode)))
454 * For INODE and NODE manager
456 /* for directory operations */
457 struct f2fs_dentry_ptr
{
460 struct f2fs_dir_entry
*dentry
;
461 __u8 (*filename
)[F2FS_SLOT_LEN
];
466 static inline void make_dentry_ptr_block(struct inode
*inode
,
467 struct f2fs_dentry_ptr
*d
, struct f2fs_dentry_block
*t
)
470 d
->max
= NR_DENTRY_IN_BLOCK
;
471 d
->nr_bitmap
= SIZE_OF_DENTRY_BITMAP
;
472 d
->bitmap
= t
->dentry_bitmap
;
473 d
->dentry
= t
->dentry
;
474 d
->filename
= t
->filename
;
477 static inline void make_dentry_ptr_inline(struct inode
*inode
,
478 struct f2fs_dentry_ptr
*d
, void *t
)
480 int entry_cnt
= NR_INLINE_DENTRY(inode
);
481 int bitmap_size
= INLINE_DENTRY_BITMAP_SIZE(inode
);
482 int reserved_size
= INLINE_RESERVED_SIZE(inode
);
486 d
->nr_bitmap
= bitmap_size
;
488 d
->dentry
= t
+ bitmap_size
+ reserved_size
;
489 d
->filename
= t
+ bitmap_size
+ reserved_size
+
490 SIZE_OF_DIR_ENTRY
* entry_cnt
;
494 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
495 * as its node offset to distinguish from index node blocks.
496 * But some bits are used to mark the node block.
498 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
501 ALLOC_NODE
, /* allocate a new node page if needed */
502 LOOKUP_NODE
, /* look up a node without readahead */
504 * look up a node with readahead called
509 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
511 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
513 /* vector size for gang look-up from extent cache that consists of radix tree */
514 #define EXT_TREE_VEC_SIZE 64
516 /* for in-memory extent cache entry */
517 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
519 /* number of extent info in extent cache we try to shrink */
520 #define EXTENT_CACHE_SHRINK_NUMBER 128
523 struct rb_node rb_node
; /* rb node located in rb-tree */
524 unsigned int ofs
; /* start offset of the entry */
525 unsigned int len
; /* length of the entry */
529 unsigned int fofs
; /* start offset in a file */
530 unsigned int len
; /* length of the extent */
531 u32 blk
; /* start block address of the extent */
535 struct rb_node rb_node
;
542 struct extent_info ei
; /* extent info */
545 struct list_head list
; /* node in global extent list of sbi */
546 struct extent_tree
*et
; /* extent tree pointer */
550 nid_t ino
; /* inode number */
551 struct rb_root root
; /* root of extent info rb-tree */
552 struct extent_node
*cached_en
; /* recently accessed extent node */
553 struct extent_info largest
; /* largested extent info */
554 struct list_head list
; /* to be used by sbi->zombie_list */
555 rwlock_t lock
; /* protect extent info rb-tree */
556 atomic_t node_cnt
; /* # of extent node in rb-tree*/
560 * This structure is taken from ext4_map_blocks.
562 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
564 #define F2FS_MAP_NEW (1 << BH_New)
565 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
566 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
567 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
570 struct f2fs_map_blocks
{
574 unsigned int m_flags
;
575 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
576 pgoff_t
*m_next_extent
; /* point to next possible extent */
580 /* for flag in get_data_block */
582 F2FS_GET_BLOCK_DEFAULT
,
583 F2FS_GET_BLOCK_FIEMAP
,
585 F2FS_GET_BLOCK_PRE_DIO
,
586 F2FS_GET_BLOCK_PRE_AIO
,
587 F2FS_GET_BLOCK_PRECACHE
,
591 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
593 #define FADVISE_COLD_BIT 0x01
594 #define FADVISE_LOST_PINO_BIT 0x02
595 #define FADVISE_ENCRYPT_BIT 0x04
596 #define FADVISE_ENC_NAME_BIT 0x08
597 #define FADVISE_KEEP_SIZE_BIT 0x10
598 #define FADVISE_HOT_BIT 0x20
599 #define FADVISE_VERITY_BIT 0x40 /* reserved */
601 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
602 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
603 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
604 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
605 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
606 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
607 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
608 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
609 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
610 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
611 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
612 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
613 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
614 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
615 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
616 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
618 #define DEF_DIR_LEVEL 0
620 struct f2fs_inode_info
{
621 struct inode vfs_inode
; /* serve a vfs inode */
622 unsigned long i_flags
; /* keep an inode flags for ioctl */
623 unsigned char i_advise
; /* use to give file attribute hints */
624 unsigned char i_dir_level
; /* use for dentry level for large dir */
626 unsigned int i_current_depth
; /* only for directory depth */
627 unsigned short i_gc_failures
; /* only for regular file */
629 unsigned int i_pino
; /* parent inode number */
630 umode_t i_acl_mode
; /* keep file acl mode temporarily */
632 /* Use below internally in f2fs*/
633 unsigned long flags
; /* use to pass per-file flags */
634 struct rw_semaphore i_sem
; /* protect fi info */
635 atomic_t dirty_pages
; /* # of dirty pages */
636 f2fs_hash_t chash
; /* hash value of given file name */
637 unsigned int clevel
; /* maximum level of given file name */
638 struct task_struct
*task
; /* lookup and create consistency */
639 struct task_struct
*cp_task
; /* separate cp/wb IO stats*/
640 nid_t i_xattr_nid
; /* node id that contains xattrs */
641 loff_t last_disk_size
; /* lastly written file size */
644 struct dquot
*i_dquot
[MAXQUOTAS
];
646 /* quota space reservation, managed internally by quota code */
647 qsize_t i_reserved_quota
;
649 struct list_head dirty_list
; /* dirty list for dirs and files */
650 struct list_head gdirty_list
; /* linked in global dirty list */
651 struct list_head inmem_ilist
; /* list for inmem inodes */
652 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
653 struct task_struct
*inmem_task
; /* store inmemory task */
654 struct mutex inmem_lock
; /* lock for inmemory pages */
655 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
656 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
657 struct rw_semaphore i_mmap_sem
;
658 struct rw_semaphore i_xattr_sem
; /* avoid racing between reading and changing EAs */
660 int i_extra_isize
; /* size of extra space located in i_addr */
661 kprojid_t i_projid
; /* id for project quota */
662 int i_inline_xattr_size
; /* inline xattr size */
663 struct timespec i_crtime
; /* inode creation time */
664 struct timespec i_disk_time
[4]; /* inode disk times */
667 static inline void get_extent_info(struct extent_info
*ext
,
668 struct f2fs_extent
*i_ext
)
670 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
671 ext
->blk
= le32_to_cpu(i_ext
->blk
);
672 ext
->len
= le32_to_cpu(i_ext
->len
);
675 static inline void set_raw_extent(struct extent_info
*ext
,
676 struct f2fs_extent
*i_ext
)
678 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
679 i_ext
->blk
= cpu_to_le32(ext
->blk
);
680 i_ext
->len
= cpu_to_le32(ext
->len
);
683 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
684 u32 blk
, unsigned int len
)
691 static inline bool __is_discard_mergeable(struct discard_info
*back
,
692 struct discard_info
*front
)
694 return (back
->lstart
+ back
->len
== front
->lstart
) &&
695 (back
->len
+ front
->len
< DEF_MAX_DISCARD_LEN
);
698 static inline bool __is_discard_back_mergeable(struct discard_info
*cur
,
699 struct discard_info
*back
)
701 return __is_discard_mergeable(back
, cur
);
704 static inline bool __is_discard_front_mergeable(struct discard_info
*cur
,
705 struct discard_info
*front
)
707 return __is_discard_mergeable(cur
, front
);
710 static inline bool __is_extent_mergeable(struct extent_info
*back
,
711 struct extent_info
*front
)
713 return (back
->fofs
+ back
->len
== front
->fofs
&&
714 back
->blk
+ back
->len
== front
->blk
);
717 static inline bool __is_back_mergeable(struct extent_info
*cur
,
718 struct extent_info
*back
)
720 return __is_extent_mergeable(back
, cur
);
723 static inline bool __is_front_mergeable(struct extent_info
*cur
,
724 struct extent_info
*front
)
726 return __is_extent_mergeable(cur
, front
);
729 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
730 static inline void __try_update_largest_extent(struct inode
*inode
,
731 struct extent_tree
*et
, struct extent_node
*en
)
733 if (en
->ei
.len
> et
->largest
.len
) {
734 et
->largest
= en
->ei
;
735 f2fs_mark_inode_dirty_sync(inode
, true);
740 * For free nid management
743 FREE_NID
, /* newly added to free nid list */
744 PREALLOC_NID
, /* it is preallocated */
748 struct f2fs_nm_info
{
749 block_t nat_blkaddr
; /* base disk address of NAT */
750 nid_t max_nid
; /* maximum possible node ids */
751 nid_t available_nids
; /* # of available node ids */
752 nid_t next_scan_nid
; /* the next nid to be scanned */
753 unsigned int ram_thresh
; /* control the memory footprint */
754 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
755 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
757 /* NAT cache management */
758 struct radix_tree_root nat_root
;/* root of the nat entry cache */
759 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
760 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
761 struct list_head nat_entries
; /* cached nat entry list (clean) */
762 unsigned int nat_cnt
; /* the # of cached nat entries */
763 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
764 unsigned int nat_blocks
; /* # of nat blocks */
766 /* free node ids management */
767 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
768 struct list_head free_nid_list
; /* list for free nids excluding preallocated nids */
769 unsigned int nid_cnt
[MAX_NID_STATE
]; /* the number of free node id */
770 spinlock_t nid_list_lock
; /* protect nid lists ops */
771 struct mutex build_lock
; /* lock for build free nids */
772 unsigned char **free_nid_bitmap
;
773 unsigned char *nat_block_bitmap
;
774 unsigned short *free_nid_count
; /* free nid count of NAT block */
777 char *nat_bitmap
; /* NAT bitmap pointer */
779 unsigned int nat_bits_blocks
; /* # of nat bits blocks */
780 unsigned char *nat_bits
; /* NAT bits blocks */
781 unsigned char *full_nat_bits
; /* full NAT pages */
782 unsigned char *empty_nat_bits
; /* empty NAT pages */
783 #ifdef CONFIG_F2FS_CHECK_FS
784 char *nat_bitmap_mir
; /* NAT bitmap mirror */
786 int bitmap_size
; /* bitmap size */
790 * this structure is used as one of function parameters.
791 * all the information are dedicated to a given direct node block determined
792 * by the data offset in a file.
794 struct dnode_of_data
{
795 struct inode
*inode
; /* vfs inode pointer */
796 struct page
*inode_page
; /* its inode page, NULL is possible */
797 struct page
*node_page
; /* cached direct node page */
798 nid_t nid
; /* node id of the direct node block */
799 unsigned int ofs_in_node
; /* data offset in the node page */
800 bool inode_page_locked
; /* inode page is locked or not */
801 bool node_changed
; /* is node block changed */
802 char cur_level
; /* level of hole node page */
803 char max_level
; /* level of current page located */
804 block_t data_blkaddr
; /* block address of the node block */
807 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
808 struct page
*ipage
, struct page
*npage
, nid_t nid
)
810 memset(dn
, 0, sizeof(*dn
));
812 dn
->inode_page
= ipage
;
813 dn
->node_page
= npage
;
820 * By default, there are 6 active log areas across the whole main area.
821 * When considering hot and cold data separation to reduce cleaning overhead,
822 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
824 * In the current design, you should not change the numbers intentionally.
825 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
826 * logs individually according to the underlying devices. (default: 6)
827 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
828 * data and 8 for node logs.
830 #define NR_CURSEG_DATA_TYPE (3)
831 #define NR_CURSEG_NODE_TYPE (3)
832 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
835 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
836 CURSEG_WARM_DATA
, /* data blocks */
837 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
838 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
839 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
840 CURSEG_COLD_NODE
, /* indirect node blocks */
845 struct completion wait
;
846 struct llist_node llnode
;
851 struct flush_cmd_control
{
852 struct task_struct
*f2fs_issue_flush
; /* flush thread */
853 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
854 atomic_t issued_flush
; /* # of issued flushes */
855 atomic_t issing_flush
; /* # of issing flushes */
856 struct llist_head issue_list
; /* list for command issue */
857 struct llist_node
*dispatch_list
; /* list for command dispatch */
860 struct f2fs_sm_info
{
861 struct sit_info
*sit_info
; /* whole segment information */
862 struct free_segmap_info
*free_info
; /* free segment information */
863 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
864 struct curseg_info
*curseg_array
; /* active segment information */
866 struct rw_semaphore curseg_lock
; /* for preventing curseg change */
868 block_t seg0_blkaddr
; /* block address of 0'th segment */
869 block_t main_blkaddr
; /* start block address of main area */
870 block_t ssa_blkaddr
; /* start block address of SSA area */
872 unsigned int segment_count
; /* total # of segments */
873 unsigned int main_segments
; /* # of segments in main area */
874 unsigned int reserved_segments
; /* # of reserved segments */
875 unsigned int ovp_segments
; /* # of overprovision segments */
877 /* a threshold to reclaim prefree segments */
878 unsigned int rec_prefree_segments
;
880 /* for batched trimming */
881 unsigned int trim_sections
; /* # of sections to trim */
883 struct list_head sit_entry_set
; /* sit entry set list */
885 unsigned int ipu_policy
; /* in-place-update policy */
886 unsigned int min_ipu_util
; /* in-place-update threshold */
887 unsigned int min_fsync_blocks
; /* threshold for fsync */
888 unsigned int min_hot_blocks
; /* threshold for hot block allocation */
889 unsigned int min_ssr_sections
; /* threshold to trigger SSR allocation */
891 /* for flush command control */
892 struct flush_cmd_control
*fcc_info
;
894 /* for discard command control */
895 struct discard_cmd_control
*dcc_info
;
902 * COUNT_TYPE for monitoring
904 * f2fs monitors the number of several block types such as on-writeback,
905 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
907 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
922 * The below are the page types of bios used in submit_bio().
923 * The available types are:
924 * DATA User data pages. It operates as async mode.
925 * NODE Node pages. It operates as async mode.
926 * META FS metadata pages such as SIT, NAT, CP.
927 * NR_PAGE_TYPE The number of page types.
928 * META_FLUSH Make sure the previous pages are written
929 * with waiting the bio's completion
930 * ... Only can be used with META.
932 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
939 INMEM
, /* the below types are used by tracepoints only. */
948 HOT
= 0, /* must be zero for meta bio */
954 enum need_lock_type
{
960 enum cp_reason_type
{
974 APP_DIRECT_IO
, /* app direct IOs */
975 APP_BUFFERED_IO
, /* app buffered IOs */
976 APP_WRITE_IO
, /* app write IOs */
977 APP_MAPPED_IO
, /* app mapped IOs */
978 FS_DATA_IO
, /* data IOs from kworker/fsync/reclaimer */
979 FS_NODE_IO
, /* node IOs from kworker/fsync/reclaimer */
980 FS_META_IO
, /* meta IOs from kworker/reclaimer */
981 FS_GC_DATA_IO
, /* data IOs from forground gc */
982 FS_GC_NODE_IO
, /* node IOs from forground gc */
983 FS_CP_DATA_IO
, /* data IOs from checkpoint */
984 FS_CP_NODE_IO
, /* node IOs from checkpoint */
985 FS_CP_META_IO
, /* meta IOs from checkpoint */
986 FS_DISCARD
, /* discard */
990 struct f2fs_io_info
{
991 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
992 nid_t ino
; /* inode number */
993 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
994 enum temp_type temp
; /* contains HOT/WARM/COLD */
995 int op
; /* contains REQ_OP_ */
996 int op_flags
; /* req_flag_bits */
997 block_t new_blkaddr
; /* new block address to be written */
998 block_t old_blkaddr
; /* old block address before Cow */
999 struct page
*page
; /* page to be written */
1000 struct page
*encrypted_page
; /* encrypted page */
1001 struct list_head list
; /* serialize IOs */
1002 bool submitted
; /* indicate IO submission */
1003 int need_lock
; /* indicate we need to lock cp_rwsem */
1004 bool in_list
; /* indicate fio is in io_list */
1005 bool is_meta
; /* indicate borrow meta inode mapping or not */
1006 enum iostat_type io_type
; /* io type */
1007 struct writeback_control
*io_wbc
; /* writeback control */
1010 #define is_read_io(rw) ((rw) == READ)
1011 struct f2fs_bio_info
{
1012 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
1013 struct bio
*bio
; /* bios to merge */
1014 sector_t last_block_in_bio
; /* last block number */
1015 struct f2fs_io_info fio
; /* store buffered io info. */
1016 struct rw_semaphore io_rwsem
; /* blocking op for bio */
1017 spinlock_t io_lock
; /* serialize DATA/NODE IOs */
1018 struct list_head io_list
; /* track fios */
1021 #define FDEV(i) (sbi->devs[i])
1022 #define RDEV(i) (raw_super->devs[i])
1023 struct f2fs_dev_info
{
1024 struct block_device
*bdev
;
1025 char path
[MAX_PATH_LEN
];
1026 unsigned int total_segments
;
1029 #ifdef CONFIG_BLK_DEV_ZONED
1030 unsigned int nr_blkz
; /* Total number of zones */
1031 u8
*blkz_type
; /* Array of zones type */
1036 DIR_INODE
, /* for dirty dir inode */
1037 FILE_INODE
, /* for dirty regular/symlink inode */
1038 DIRTY_META
, /* for all dirtied inode metadata */
1039 ATOMIC_FILE
, /* for all atomic files */
1043 /* for inner inode cache management */
1044 struct inode_management
{
1045 struct radix_tree_root ino_root
; /* ino entry array */
1046 spinlock_t ino_lock
; /* for ino entry lock */
1047 struct list_head ino_list
; /* inode list head */
1048 unsigned long ino_num
; /* number of entries */
1051 /* For s_flag in struct f2fs_sb_info */
1053 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
1054 SBI_IS_CLOSE
, /* specify unmounting */
1055 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
1056 SBI_POR_DOING
, /* recovery is doing or not */
1057 SBI_NEED_SB_WRITE
, /* need to recover superblock */
1058 SBI_NEED_CP
, /* need to checkpoint */
1068 WHINT_MODE_OFF
, /* not pass down write hints */
1069 WHINT_MODE_USER
, /* try to pass down hints given by users */
1070 WHINT_MODE_FS
, /* pass down hints with F2FS policy */
1074 ALLOC_MODE_DEFAULT
, /* stay default */
1075 ALLOC_MODE_REUSE
, /* reuse segments as much as possible */
1079 FSYNC_MODE_POSIX
, /* fsync follows posix semantics */
1080 FSYNC_MODE_STRICT
, /* fsync behaves in line with ext4 */
1081 FSYNC_MODE_NOBARRIER
, /* fsync behaves nobarrier based on posix */
1084 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1085 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1086 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1088 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1091 struct f2fs_sb_info
{
1092 struct super_block
*sb
; /* pointer to VFS super block */
1093 struct proc_dir_entry
*s_proc
; /* proc entry */
1094 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
1095 struct rw_semaphore sb_lock
; /* lock for raw super block */
1096 int valid_super_block
; /* valid super block no */
1097 unsigned long s_flag
; /* flags for sbi */
1099 #ifdef CONFIG_BLK_DEV_ZONED
1100 unsigned int blocks_per_blkz
; /* F2FS blocks per zone */
1101 unsigned int log_blocks_per_blkz
; /* log2 F2FS blocks per zone */
1104 /* for node-related operations */
1105 struct f2fs_nm_info
*nm_info
; /* node manager */
1106 struct inode
*node_inode
; /* cache node blocks */
1108 /* for segment-related operations */
1109 struct f2fs_sm_info
*sm_info
; /* segment manager */
1111 /* for bio operations */
1112 struct f2fs_bio_info
*write_io
[NR_PAGE_TYPE
]; /* for write bios */
1113 struct mutex wio_mutex
[NR_PAGE_TYPE
- 1][NR_TEMP_TYPE
];
1114 /* bio ordering for NODE/DATA */
1115 mempool_t
*write_io_dummy
; /* Dummy pages */
1117 /* for checkpoint */
1118 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
1119 int cur_cp_pack
; /* remain current cp pack */
1120 spinlock_t cp_lock
; /* for flag in ckpt */
1121 struct inode
*meta_inode
; /* cache meta blocks */
1122 struct mutex cp_mutex
; /* checkpoint procedure lock */
1123 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
1124 struct rw_semaphore node_write
; /* locking node writes */
1125 struct rw_semaphore node_change
; /* locking node change */
1126 wait_queue_head_t cp_wait
;
1127 unsigned long last_time
[MAX_TIME
]; /* to store time in jiffies */
1128 long interval_time
[MAX_TIME
]; /* to store thresholds */
1130 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
1132 /* for orphan inode, use 0'th array */
1133 unsigned int max_orphans
; /* max orphan inodes */
1135 /* for inode management */
1136 struct list_head inode_list
[NR_INODE_TYPE
]; /* dirty inode list */
1137 spinlock_t inode_lock
[NR_INODE_TYPE
]; /* for dirty inode list lock */
1139 /* for extent tree cache */
1140 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
1141 struct mutex extent_tree_lock
; /* locking extent radix tree */
1142 struct list_head extent_list
; /* lru list for shrinker */
1143 spinlock_t extent_lock
; /* locking extent lru list */
1144 atomic_t total_ext_tree
; /* extent tree count */
1145 struct list_head zombie_list
; /* extent zombie tree list */
1146 atomic_t total_zombie_tree
; /* extent zombie tree count */
1147 atomic_t total_ext_node
; /* extent info count */
1149 /* basic filesystem units */
1150 unsigned int log_sectors_per_block
; /* log2 sectors per block */
1151 unsigned int log_blocksize
; /* log2 block size */
1152 unsigned int blocksize
; /* block size */
1153 unsigned int root_ino_num
; /* root inode number*/
1154 unsigned int node_ino_num
; /* node inode number*/
1155 unsigned int meta_ino_num
; /* meta inode number*/
1156 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
1157 unsigned int blocks_per_seg
; /* blocks per segment */
1158 unsigned int segs_per_sec
; /* segments per section */
1159 unsigned int secs_per_zone
; /* sections per zone */
1160 unsigned int total_sections
; /* total section count */
1161 unsigned int total_node_count
; /* total node block count */
1162 unsigned int total_valid_node_count
; /* valid node block count */
1163 loff_t max_file_blocks
; /* max block index of file */
1164 int dir_level
; /* directory level */
1165 unsigned int trigger_ssr_threshold
; /* threshold to trigger ssr */
1166 int readdir_ra
; /* readahead inode in readdir */
1168 block_t user_block_count
; /* # of user blocks */
1169 block_t total_valid_block_count
; /* # of valid blocks */
1170 block_t discard_blks
; /* discard command candidats */
1171 block_t last_valid_block_count
; /* for recovery */
1172 block_t reserved_blocks
; /* configurable reserved blocks */
1173 block_t current_reserved_blocks
; /* current reserved blocks */
1175 unsigned int nquota_files
; /* # of quota sysfile */
1177 u32 s_next_generation
; /* for NFS support */
1179 /* # of pages, see count_type */
1180 atomic_t nr_pages
[NR_COUNT_TYPE
];
1181 /* # of allocated blocks */
1182 struct percpu_counter alloc_valid_block_count
;
1184 /* writeback control */
1185 atomic_t wb_sync_req
; /* count # of WB_SYNC threads */
1187 /* valid inode count */
1188 struct percpu_counter total_valid_inode_count
;
1190 struct f2fs_mount_info mount_opt
; /* mount options */
1192 /* for cleaning operations */
1193 struct mutex gc_mutex
; /* mutex for GC */
1194 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
1195 unsigned int cur_victim_sec
; /* current victim section num */
1197 /* threshold for converting bg victims for fg */
1200 /* threshold for gc trials on pinned files */
1201 u64 gc_pin_file_threshold
;
1203 /* maximum # of trials to find a victim segment for SSR and GC */
1204 unsigned int max_victim_search
;
1207 * for stat information.
1208 * one is for the LFS mode, and the other is for the SSR mode.
1210 #ifdef CONFIG_F2FS_STAT_FS
1211 struct f2fs_stat_info
*stat_info
; /* FS status information */
1212 unsigned int segment_count
[2]; /* # of allocated segments */
1213 unsigned int block_count
[2]; /* # of allocated blocks */
1214 atomic_t inplace_count
; /* # of inplace update */
1215 atomic64_t total_hit_ext
; /* # of lookup extent cache */
1216 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
1217 atomic64_t read_hit_largest
; /* # of hit largest extent node */
1218 atomic64_t read_hit_cached
; /* # of hit cached extent node */
1219 atomic_t inline_xattr
; /* # of inline_xattr inodes */
1220 atomic_t inline_inode
; /* # of inline_data inodes */
1221 atomic_t inline_dir
; /* # of inline_dentry inodes */
1222 atomic_t aw_cnt
; /* # of atomic writes */
1223 atomic_t vw_cnt
; /* # of volatile writes */
1224 atomic_t max_aw_cnt
; /* max # of atomic writes */
1225 atomic_t max_vw_cnt
; /* max # of volatile writes */
1226 int bg_gc
; /* background gc calls */
1227 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
1229 spinlock_t stat_lock
; /* lock for stat operations */
1231 /* For app/fs IO statistics */
1232 spinlock_t iostat_lock
;
1233 unsigned long long write_iostat
[NR_IO_TYPE
];
1236 /* For sysfs suppport */
1237 struct kobject s_kobj
;
1238 struct completion s_kobj_unregister
;
1240 /* For shrinker support */
1241 struct list_head s_list
;
1242 int s_ndevs
; /* number of devices */
1243 struct f2fs_dev_info
*devs
; /* for device list */
1244 unsigned int dirty_device
; /* for checkpoint data flush */
1245 spinlock_t dev_lock
; /* protect dirty_device */
1246 struct mutex umount_mutex
;
1247 unsigned int shrinker_run_no
;
1249 /* For write statistics */
1250 u64 sectors_written_start
;
1253 /* Reference to checksum algorithm driver via cryptoapi */
1254 struct crypto_shash
*s_chksum_driver
;
1256 /* Precomputed FS UUID checksum for seeding other checksums */
1257 __u32 s_chksum_seed
;
1260 #ifdef CONFIG_F2FS_FAULT_INJECTION
1261 #define f2fs_show_injection_info(type) \
1262 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1263 KERN_INFO, fault_name[type], \
1264 __func__, __builtin_return_address(0))
1265 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
1267 struct f2fs_fault_info
*ffi
= &F2FS_OPTION(sbi
).fault_info
;
1269 if (!ffi
->inject_rate
)
1272 if (!IS_FAULT_SET(ffi
, type
))
1275 atomic_inc(&ffi
->inject_ops
);
1276 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
1277 atomic_set(&ffi
->inject_ops
, 0);
1284 /* For write statistics. Suppose sector size is 512 bytes,
1285 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1287 #define BD_PART_WRITTEN(s) \
1288 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1289 (s)->sectors_written_start) >> 1)
1291 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
1293 sbi
->last_time
[type
] = jiffies
;
1296 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
1298 unsigned long interval
= sbi
->interval_time
[type
] * HZ
;
1300 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
1303 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
1305 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
1306 struct request_queue
*q
= bdev_get_queue(bdev
);
1307 struct request_list
*rl
= &q
->root_rl
;
1309 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
1312 return f2fs_time_over(sbi
, REQ_TIME
);
1318 static inline u32
__f2fs_crc32(struct f2fs_sb_info
*sbi
, u32 crc
,
1319 const void *address
, unsigned int length
)
1322 struct shash_desc shash
;
1327 BUG_ON(crypto_shash_descsize(sbi
->s_chksum_driver
) != sizeof(desc
.ctx
));
1329 desc
.shash
.tfm
= sbi
->s_chksum_driver
;
1330 desc
.shash
.flags
= 0;
1331 *(u32
*)desc
.ctx
= crc
;
1333 err
= crypto_shash_update(&desc
.shash
, address
, length
);
1336 return *(u32
*)desc
.ctx
;
1339 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1340 unsigned int length
)
1342 return __f2fs_crc32(sbi
, F2FS_SUPER_MAGIC
, address
, length
);
1345 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1346 void *buf
, size_t buf_size
)
1348 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1351 static inline u32
f2fs_chksum(struct f2fs_sb_info
*sbi
, u32 crc
,
1352 const void *address
, unsigned int length
)
1354 return __f2fs_crc32(sbi
, crc
, address
, length
);
1357 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1359 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1362 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1364 return sb
->s_fs_info
;
1367 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1369 return F2FS_SB(inode
->i_sb
);
1372 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1374 return F2FS_I_SB(mapping
->host
);
1377 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1379 return F2FS_M_SB(page
->mapping
);
1382 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1384 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1387 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1389 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1392 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1394 return (struct f2fs_node
*)page_address(page
);
1397 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1399 return &((struct f2fs_node
*)page_address(page
))->i
;
1402 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1404 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1407 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1409 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1412 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1414 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1417 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1419 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1422 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1424 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1427 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1429 return sbi
->meta_inode
->i_mapping
;
1432 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1434 return sbi
->node_inode
->i_mapping
;
1437 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1439 return test_bit(type
, &sbi
->s_flag
);
1442 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1444 set_bit(type
, &sbi
->s_flag
);
1447 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1449 clear_bit(type
, &sbi
->s_flag
);
1452 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1454 return le64_to_cpu(cp
->checkpoint_ver
);
1457 static inline unsigned long f2fs_qf_ino(struct super_block
*sb
, int type
)
1459 if (type
< F2FS_MAX_QUOTAS
)
1460 return le32_to_cpu(F2FS_SB(sb
)->raw_super
->qf_ino
[type
]);
1464 static inline __u64
cur_cp_crc(struct f2fs_checkpoint
*cp
)
1466 size_t crc_offset
= le32_to_cpu(cp
->checksum_offset
);
1467 return le32_to_cpu(*((__le32
*)((unsigned char *)cp
+ crc_offset
)));
1470 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1472 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1474 return ckpt_flags
& f
;
1477 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1479 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1482 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1484 unsigned int ckpt_flags
;
1486 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1488 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1491 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1493 unsigned long flags
;
1495 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1496 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1497 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1500 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1502 unsigned int ckpt_flags
;
1504 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1506 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1509 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1511 unsigned long flags
;
1513 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1514 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1515 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1518 static inline void disable_nat_bits(struct f2fs_sb_info
*sbi
, bool lock
)
1520 unsigned long flags
;
1522 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
1525 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1526 __clear_ckpt_flags(F2FS_CKPT(sbi
), CP_NAT_BITS_FLAG
);
1527 kfree(NM_I(sbi
)->nat_bits
);
1528 NM_I(sbi
)->nat_bits
= NULL
;
1530 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1533 static inline bool enabled_nat_bits(struct f2fs_sb_info
*sbi
,
1534 struct cp_control
*cpc
)
1536 bool set
= is_set_ckpt_flags(sbi
, CP_NAT_BITS_FLAG
);
1538 return (cpc
) ? (cpc
->reason
& CP_UMOUNT
) && set
: set
;
1541 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1543 down_read(&sbi
->cp_rwsem
);
1546 static inline int f2fs_trylock_op(struct f2fs_sb_info
*sbi
)
1548 return down_read_trylock(&sbi
->cp_rwsem
);
1551 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1553 up_read(&sbi
->cp_rwsem
);
1556 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1558 down_write(&sbi
->cp_rwsem
);
1561 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1563 up_write(&sbi
->cp_rwsem
);
1566 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1568 int reason
= CP_SYNC
;
1570 if (test_opt(sbi
, FASTBOOT
))
1571 reason
= CP_FASTBOOT
;
1572 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1577 static inline bool __remain_node_summaries(int reason
)
1579 return (reason
& (CP_UMOUNT
| CP_FASTBOOT
));
1582 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1584 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1585 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1589 * Check whether the inode has blocks or not
1591 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1593 block_t xattr_block
= F2FS_I(inode
)->i_xattr_nid
? 1 : 0;
1595 return (inode
->i_blocks
>> F2FS_LOG_SECTORS_PER_BLOCK
) > xattr_block
;
1598 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1600 return ofs
== XATTR_NODE_OFFSET
;
1603 static inline bool __allow_reserved_blocks(struct f2fs_sb_info
*sbi
,
1604 struct inode
*inode
, bool cap
)
1608 if (!test_opt(sbi
, RESERVE_ROOT
))
1610 if (IS_NOQUOTA(inode
))
1612 if (uid_eq(F2FS_OPTION(sbi
).s_resuid
, current_fsuid()))
1614 if (!gid_eq(F2FS_OPTION(sbi
).s_resgid
, GLOBAL_ROOT_GID
) &&
1615 in_group_p(F2FS_OPTION(sbi
).s_resgid
))
1617 if (cap
&& capable(CAP_SYS_RESOURCE
))
1622 static inline void f2fs_i_blocks_write(struct inode
*, block_t
, bool, bool);
1623 static inline int inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1624 struct inode
*inode
, blkcnt_t
*count
)
1626 blkcnt_t diff
= 0, release
= 0;
1627 block_t avail_user_block_count
;
1630 ret
= dquot_reserve_block(inode
, *count
);
1634 #ifdef CONFIG_F2FS_FAULT_INJECTION
1635 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1636 f2fs_show_injection_info(FAULT_BLOCK
);
1642 * let's increase this in prior to actual block count change in order
1643 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1645 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1647 spin_lock(&sbi
->stat_lock
);
1648 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1649 avail_user_block_count
= sbi
->user_block_count
-
1650 sbi
->current_reserved_blocks
;
1652 if (!__allow_reserved_blocks(sbi
, inode
, true))
1653 avail_user_block_count
-= F2FS_OPTION(sbi
).root_reserved_blocks
;
1655 if (unlikely(sbi
->total_valid_block_count
> avail_user_block_count
)) {
1656 diff
= sbi
->total_valid_block_count
- avail_user_block_count
;
1661 sbi
->total_valid_block_count
-= diff
;
1663 spin_unlock(&sbi
->stat_lock
);
1664 percpu_counter_sub(&sbi
->alloc_valid_block_count
, diff
);
1668 spin_unlock(&sbi
->stat_lock
);
1670 if (unlikely(release
))
1671 dquot_release_reservation_block(inode
, release
);
1672 f2fs_i_blocks_write(inode
, *count
, true, true);
1676 dquot_release_reservation_block(inode
, release
);
1680 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1681 struct inode
*inode
,
1684 blkcnt_t sectors
= count
<< F2FS_LOG_SECTORS_PER_BLOCK
;
1686 spin_lock(&sbi
->stat_lock
);
1687 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1688 f2fs_bug_on(sbi
, inode
->i_blocks
< sectors
);
1689 sbi
->total_valid_block_count
-= (block_t
)count
;
1690 if (sbi
->reserved_blocks
&&
1691 sbi
->current_reserved_blocks
< sbi
->reserved_blocks
)
1692 sbi
->current_reserved_blocks
= min(sbi
->reserved_blocks
,
1693 sbi
->current_reserved_blocks
+ count
);
1694 spin_unlock(&sbi
->stat_lock
);
1695 f2fs_i_blocks_write(inode
, count
, false, true);
1698 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1700 atomic_inc(&sbi
->nr_pages
[count_type
]);
1702 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1703 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1706 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1709 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1711 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1712 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1713 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1714 if (IS_NOQUOTA(inode
))
1715 inc_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_QDATA
);
1718 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1720 atomic_dec(&sbi
->nr_pages
[count_type
]);
1723 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1725 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1726 !S_ISLNK(inode
->i_mode
))
1729 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1730 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1731 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1732 if (IS_NOQUOTA(inode
))
1733 dec_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_QDATA
);
1736 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1738 return atomic_read(&sbi
->nr_pages
[count_type
]);
1741 static inline int get_dirty_pages(struct inode
*inode
)
1743 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1746 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1748 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1749 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1750 sbi
->log_blocks_per_seg
;
1752 return segs
/ sbi
->segs_per_sec
;
1755 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1757 return sbi
->total_valid_block_count
;
1760 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1762 return sbi
->discard_blks
;
1765 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1767 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1769 /* return NAT or SIT bitmap */
1770 if (flag
== NAT_BITMAP
)
1771 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1772 else if (flag
== SIT_BITMAP
)
1773 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1778 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1780 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1783 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1785 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1788 if (is_set_ckpt_flags(sbi
, CP_LARGE_NAT_BITMAP_FLAG
)) {
1789 offset
= (flag
== SIT_BITMAP
) ?
1790 le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
) : 0;
1791 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1794 if (__cp_payload(sbi
) > 0) {
1795 if (flag
== NAT_BITMAP
)
1796 return &ckpt
->sit_nat_version_bitmap
;
1798 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1800 offset
= (flag
== NAT_BITMAP
) ?
1801 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1802 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1806 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1808 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1810 if (sbi
->cur_cp_pack
== 2)
1811 start_addr
+= sbi
->blocks_per_seg
;
1815 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1817 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1819 if (sbi
->cur_cp_pack
== 1)
1820 start_addr
+= sbi
->blocks_per_seg
;
1824 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1826 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1829 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1831 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1834 static inline int inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1835 struct inode
*inode
, bool is_inode
)
1837 block_t valid_block_count
;
1838 unsigned int valid_node_count
;
1839 bool quota
= inode
&& !is_inode
;
1842 int ret
= dquot_reserve_block(inode
, 1);
1847 #ifdef CONFIG_F2FS_FAULT_INJECTION
1848 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1849 f2fs_show_injection_info(FAULT_BLOCK
);
1854 spin_lock(&sbi
->stat_lock
);
1856 valid_block_count
= sbi
->total_valid_block_count
+
1857 sbi
->current_reserved_blocks
+ 1;
1859 if (!__allow_reserved_blocks(sbi
, inode
, false))
1860 valid_block_count
+= F2FS_OPTION(sbi
).root_reserved_blocks
;
1862 if (unlikely(valid_block_count
> sbi
->user_block_count
)) {
1863 spin_unlock(&sbi
->stat_lock
);
1867 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1868 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1869 spin_unlock(&sbi
->stat_lock
);
1873 sbi
->total_valid_node_count
++;
1874 sbi
->total_valid_block_count
++;
1875 spin_unlock(&sbi
->stat_lock
);
1879 f2fs_mark_inode_dirty_sync(inode
, true);
1881 f2fs_i_blocks_write(inode
, 1, true, true);
1884 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1889 dquot_release_reservation_block(inode
, 1);
1893 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1894 struct inode
*inode
, bool is_inode
)
1896 spin_lock(&sbi
->stat_lock
);
1898 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1899 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1900 f2fs_bug_on(sbi
, !is_inode
&& !inode
->i_blocks
);
1902 sbi
->total_valid_node_count
--;
1903 sbi
->total_valid_block_count
--;
1904 if (sbi
->reserved_blocks
&&
1905 sbi
->current_reserved_blocks
< sbi
->reserved_blocks
)
1906 sbi
->current_reserved_blocks
++;
1908 spin_unlock(&sbi
->stat_lock
);
1911 f2fs_i_blocks_write(inode
, 1, false, true);
1914 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1916 return sbi
->total_valid_node_count
;
1919 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1921 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1924 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1926 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1929 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1931 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1934 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1935 pgoff_t index
, bool for_write
)
1937 #ifdef CONFIG_F2FS_FAULT_INJECTION
1941 page
= find_get_page_flags(mapping
, index
,
1942 FGP_LOCK
| FGP_ACCESSED
);
1944 page
= find_lock_page(mapping
, index
);
1948 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
)) {
1949 f2fs_show_injection_info(FAULT_PAGE_ALLOC
);
1954 return grab_cache_page(mapping
, index
);
1955 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1958 static inline struct page
*f2fs_pagecache_get_page(
1959 struct address_space
*mapping
, pgoff_t index
,
1960 int fgp_flags
, gfp_t gfp_mask
)
1962 #ifdef CONFIG_F2FS_FAULT_INJECTION
1963 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_GET
)) {
1964 f2fs_show_injection_info(FAULT_PAGE_GET
);
1968 return pagecache_get_page(mapping
, index
, fgp_flags
, gfp_mask
);
1971 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1973 char *src_kaddr
= kmap(src
);
1974 char *dst_kaddr
= kmap(dst
);
1976 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1981 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1987 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1993 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1996 f2fs_put_page(dn
->node_page
, 1);
1997 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1998 f2fs_put_page(dn
->inode_page
, 0);
1999 dn
->node_page
= NULL
;
2000 dn
->inode_page
= NULL
;
2003 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
2006 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
2009 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
2014 entry
= kmem_cache_alloc(cachep
, flags
);
2016 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
2020 static inline struct bio
*f2fs_bio_alloc(struct f2fs_sb_info
*sbi
,
2021 int npages
, bool no_fail
)
2026 /* No failure on bio allocation */
2027 bio
= bio_alloc(GFP_NOIO
, npages
);
2029 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
2032 #ifdef CONFIG_F2FS_FAULT_INJECTION
2033 if (time_to_inject(sbi
, FAULT_ALLOC_BIO
)) {
2034 f2fs_show_injection_info(FAULT_ALLOC_BIO
);
2038 return bio_alloc(GFP_KERNEL
, npages
);
2041 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
2042 unsigned long index
, void *item
)
2044 while (radix_tree_insert(root
, index
, item
))
2048 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2050 static inline bool IS_INODE(struct page
*page
)
2052 struct f2fs_node
*p
= F2FS_NODE(page
);
2054 return RAW_IS_INODE(p
);
2057 static inline int offset_in_addr(struct f2fs_inode
*i
)
2059 return (i
->i_inline
& F2FS_EXTRA_ATTR
) ?
2060 (le16_to_cpu(i
->i_extra_isize
) / sizeof(__le32
)) : 0;
2063 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
2065 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
2068 static inline int f2fs_has_extra_attr(struct inode
*inode
);
2069 static inline block_t
datablock_addr(struct inode
*inode
,
2070 struct page
*node_page
, unsigned int offset
)
2072 struct f2fs_node
*raw_node
;
2075 bool is_inode
= IS_INODE(node_page
);
2077 raw_node
= F2FS_NODE(node_page
);
2079 /* from GC path only */
2082 base
= offset_in_addr(&raw_node
->i
);
2083 else if (f2fs_has_extra_attr(inode
))
2084 base
= get_extra_isize(inode
);
2087 addr_array
= blkaddr_in_node(raw_node
);
2088 return le32_to_cpu(addr_array
[base
+ offset
]);
2091 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
2096 mask
= 1 << (7 - (nr
& 0x07));
2097 return mask
& *addr
;
2100 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
2105 mask
= 1 << (7 - (nr
& 0x07));
2109 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
2114 mask
= 1 << (7 - (nr
& 0x07));
2118 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
2124 mask
= 1 << (7 - (nr
& 0x07));
2130 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
2136 mask
= 1 << (7 - (nr
& 0x07));
2142 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
2147 mask
= 1 << (7 - (nr
& 0x07));
2151 #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
2152 #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
2153 #define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
2155 static inline __u32
f2fs_mask_flags(umode_t mode
, __u32 flags
)
2159 else if (S_ISREG(mode
))
2160 return flags
& F2FS_REG_FLMASK
;
2162 return flags
& F2FS_OTHER_FLMASK
;
2165 /* used for f2fs_inode_info->flags */
2167 FI_NEW_INODE
, /* indicate newly allocated inode */
2168 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
2169 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
2170 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
2171 FI_INC_LINK
, /* need to increment i_nlink */
2172 FI_ACL_MODE
, /* indicate acl mode */
2173 FI_NO_ALLOC
, /* should not allocate any blocks */
2174 FI_FREE_NID
, /* free allocated nide */
2175 FI_NO_EXTENT
, /* not to use the extent cache */
2176 FI_INLINE_XATTR
, /* used for inline xattr */
2177 FI_INLINE_DATA
, /* used for inline data*/
2178 FI_INLINE_DENTRY
, /* used for inline dentry */
2179 FI_APPEND_WRITE
, /* inode has appended data */
2180 FI_UPDATE_WRITE
, /* inode has in-place-update data */
2181 FI_NEED_IPU
, /* used for ipu per file */
2182 FI_ATOMIC_FILE
, /* indicate atomic file */
2183 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
2184 FI_VOLATILE_FILE
, /* indicate volatile file */
2185 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
2186 FI_DROP_CACHE
, /* drop dirty page cache */
2187 FI_DATA_EXIST
, /* indicate data exists */
2188 FI_INLINE_DOTS
, /* indicate inline dot dentries */
2189 FI_DO_DEFRAG
, /* indicate defragment is running */
2190 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
2191 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
2192 FI_HOT_DATA
, /* indicate file is hot */
2193 FI_EXTRA_ATTR
, /* indicate file has extra attribute */
2194 FI_PROJ_INHERIT
, /* indicate file inherits projectid */
2195 FI_PIN_FILE
, /* indicate file should not be gced */
2198 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
2202 case FI_INLINE_XATTR
:
2203 case FI_INLINE_DATA
:
2204 case FI_INLINE_DENTRY
:
2209 case FI_INLINE_DOTS
:
2211 f2fs_mark_inode_dirty_sync(inode
, true);
2215 static inline void set_inode_flag(struct inode
*inode
, int flag
)
2217 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
2218 set_bit(flag
, &F2FS_I(inode
)->flags
);
2219 __mark_inode_dirty_flag(inode
, flag
, true);
2222 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
2224 return test_bit(flag
, &F2FS_I(inode
)->flags
);
2227 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
2229 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
2230 clear_bit(flag
, &F2FS_I(inode
)->flags
);
2231 __mark_inode_dirty_flag(inode
, flag
, false);
2234 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
2236 F2FS_I(inode
)->i_acl_mode
= mode
;
2237 set_inode_flag(inode
, FI_ACL_MODE
);
2238 f2fs_mark_inode_dirty_sync(inode
, false);
2241 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
2247 f2fs_mark_inode_dirty_sync(inode
, true);
2250 static inline void f2fs_i_blocks_write(struct inode
*inode
,
2251 block_t diff
, bool add
, bool claim
)
2253 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2254 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2256 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2259 dquot_claim_block(inode
, diff
);
2261 dquot_alloc_block_nofail(inode
, diff
);
2263 dquot_free_block(inode
, diff
);
2266 f2fs_mark_inode_dirty_sync(inode
, true);
2267 if (clean
|| recover
)
2268 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2271 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
2273 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2274 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2276 if (i_size_read(inode
) == i_size
)
2279 i_size_write(inode
, i_size
);
2280 f2fs_mark_inode_dirty_sync(inode
, true);
2281 if (clean
|| recover
)
2282 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2285 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
2287 F2FS_I(inode
)->i_current_depth
= depth
;
2288 f2fs_mark_inode_dirty_sync(inode
, true);
2291 static inline void f2fs_i_gc_failures_write(struct inode
*inode
,
2294 F2FS_I(inode
)->i_gc_failures
= count
;
2295 f2fs_mark_inode_dirty_sync(inode
, true);
2298 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
2300 F2FS_I(inode
)->i_xattr_nid
= xnid
;
2301 f2fs_mark_inode_dirty_sync(inode
, true);
2304 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
2306 F2FS_I(inode
)->i_pino
= pino
;
2307 f2fs_mark_inode_dirty_sync(inode
, true);
2310 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
2312 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
2314 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
2315 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
2316 if (ri
->i_inline
& F2FS_INLINE_DATA
)
2317 set_bit(FI_INLINE_DATA
, &fi
->flags
);
2318 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
2319 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
2320 if (ri
->i_inline
& F2FS_DATA_EXIST
)
2321 set_bit(FI_DATA_EXIST
, &fi
->flags
);
2322 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
2323 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
2324 if (ri
->i_inline
& F2FS_EXTRA_ATTR
)
2325 set_bit(FI_EXTRA_ATTR
, &fi
->flags
);
2326 if (ri
->i_inline
& F2FS_PIN_FILE
)
2327 set_bit(FI_PIN_FILE
, &fi
->flags
);
2330 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
2334 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
2335 ri
->i_inline
|= F2FS_INLINE_XATTR
;
2336 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
2337 ri
->i_inline
|= F2FS_INLINE_DATA
;
2338 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
2339 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
2340 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
2341 ri
->i_inline
|= F2FS_DATA_EXIST
;
2342 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
2343 ri
->i_inline
|= F2FS_INLINE_DOTS
;
2344 if (is_inode_flag_set(inode
, FI_EXTRA_ATTR
))
2345 ri
->i_inline
|= F2FS_EXTRA_ATTR
;
2346 if (is_inode_flag_set(inode
, FI_PIN_FILE
))
2347 ri
->i_inline
|= F2FS_PIN_FILE
;
2350 static inline int f2fs_has_extra_attr(struct inode
*inode
)
2352 return is_inode_flag_set(inode
, FI_EXTRA_ATTR
);
2355 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
2357 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
2360 static inline unsigned int addrs_per_inode(struct inode
*inode
)
2362 return CUR_ADDRS_PER_INODE(inode
) - get_inline_xattr_addrs(inode
);
2365 static inline void *inline_xattr_addr(struct inode
*inode
, struct page
*page
)
2367 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2369 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
2370 get_inline_xattr_addrs(inode
)]);
2373 static inline int inline_xattr_size(struct inode
*inode
)
2375 return get_inline_xattr_addrs(inode
) * sizeof(__le32
);
2378 static inline int f2fs_has_inline_data(struct inode
*inode
)
2380 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
2383 static inline int f2fs_exist_data(struct inode
*inode
)
2385 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
2388 static inline int f2fs_has_inline_dots(struct inode
*inode
)
2390 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
2393 static inline bool f2fs_is_pinned_file(struct inode
*inode
)
2395 return is_inode_flag_set(inode
, FI_PIN_FILE
);
2398 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
2400 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
2403 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
2405 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
2408 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
2410 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
2413 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
2415 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
2418 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
2420 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
2423 static inline void *inline_data_addr(struct inode
*inode
, struct page
*page
)
2425 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2426 int extra_size
= get_extra_isize(inode
);
2428 return (void *)&(ri
->i_addr
[extra_size
+ DEF_INLINE_RESERVED_SIZE
]);
2431 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
2433 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
2436 static inline int is_file(struct inode
*inode
, int type
)
2438 return F2FS_I(inode
)->i_advise
& type
;
2441 static inline void set_file(struct inode
*inode
, int type
)
2443 F2FS_I(inode
)->i_advise
|= type
;
2444 f2fs_mark_inode_dirty_sync(inode
, true);
2447 static inline void clear_file(struct inode
*inode
, int type
)
2449 F2FS_I(inode
)->i_advise
&= ~type
;
2450 f2fs_mark_inode_dirty_sync(inode
, true);
2453 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
2458 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2460 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
2461 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
2462 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
2465 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
2466 file_keep_isize(inode
) ||
2467 i_size_read(inode
) & ~PAGE_MASK
)
2470 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
, &inode
->i_atime
))
2472 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
+ 1, &inode
->i_ctime
))
2474 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
+ 2, &inode
->i_mtime
))
2476 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
+ 3,
2477 &F2FS_I(inode
)->i_crtime
))
2480 down_read(&F2FS_I(inode
)->i_sem
);
2481 ret
= F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
2482 up_read(&F2FS_I(inode
)->i_sem
);
2487 static inline bool f2fs_readonly(struct super_block
*sb
)
2489 return sb_rdonly(sb
);
2492 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
2494 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
2497 static inline bool is_dot_dotdot(const struct qstr
*str
)
2499 if (str
->len
== 1 && str
->name
[0] == '.')
2502 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
2508 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
2510 if (!test_opt(F2FS_I_SB(inode
), EXTENT_CACHE
) ||
2511 is_inode_flag_set(inode
, FI_NO_EXTENT
))
2514 return S_ISREG(inode
->i_mode
);
2517 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
2518 size_t size
, gfp_t flags
)
2520 #ifdef CONFIG_F2FS_FAULT_INJECTION
2521 if (time_to_inject(sbi
, FAULT_KMALLOC
)) {
2522 f2fs_show_injection_info(FAULT_KMALLOC
);
2526 return kmalloc(size
, flags
);
2529 static inline void *f2fs_kzalloc(struct f2fs_sb_info
*sbi
,
2530 size_t size
, gfp_t flags
)
2532 return f2fs_kmalloc(sbi
, size
, flags
| __GFP_ZERO
);
2535 static inline void *f2fs_kvmalloc(struct f2fs_sb_info
*sbi
,
2536 size_t size
, gfp_t flags
)
2538 #ifdef CONFIG_F2FS_FAULT_INJECTION
2539 if (time_to_inject(sbi
, FAULT_KVMALLOC
)) {
2540 f2fs_show_injection_info(FAULT_KVMALLOC
);
2544 return kvmalloc(size
, flags
);
2547 static inline void *f2fs_kvzalloc(struct f2fs_sb_info
*sbi
,
2548 size_t size
, gfp_t flags
)
2550 return f2fs_kvmalloc(sbi
, size
, flags
| __GFP_ZERO
);
2553 static inline int get_extra_isize(struct inode
*inode
)
2555 return F2FS_I(inode
)->i_extra_isize
/ sizeof(__le32
);
2558 static inline int get_inline_xattr_addrs(struct inode
*inode
)
2560 return F2FS_I(inode
)->i_inline_xattr_size
;
2563 #define get_inode_mode(i) \
2564 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2565 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2567 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2568 (offsetof(struct f2fs_inode, i_extra_end) - \
2569 offsetof(struct f2fs_inode, i_extra_isize)) \
2571 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2572 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2573 ((offsetof(typeof(*f2fs_inode), field) + \
2574 sizeof((f2fs_inode)->field)) \
2575 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2577 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2581 spin_lock(&sbi
->iostat_lock
);
2582 for (i
= 0; i
< NR_IO_TYPE
; i
++)
2583 sbi
->write_iostat
[i
] = 0;
2584 spin_unlock(&sbi
->iostat_lock
);
2587 static inline void f2fs_update_iostat(struct f2fs_sb_info
*sbi
,
2588 enum iostat_type type
, unsigned long long io_bytes
)
2590 if (!sbi
->iostat_enable
)
2592 spin_lock(&sbi
->iostat_lock
);
2593 sbi
->write_iostat
[type
] += io_bytes
;
2595 if (type
== APP_WRITE_IO
|| type
== APP_DIRECT_IO
)
2596 sbi
->write_iostat
[APP_BUFFERED_IO
] =
2597 sbi
->write_iostat
[APP_WRITE_IO
] -
2598 sbi
->write_iostat
[APP_DIRECT_IO
];
2599 spin_unlock(&sbi
->iostat_lock
);
2605 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2606 void truncate_data_blocks(struct dnode_of_data
*dn
);
2607 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2608 int f2fs_truncate(struct inode
*inode
);
2609 int f2fs_getattr(const struct path
*path
, struct kstat
*stat
,
2610 u32 request_mask
, unsigned int flags
);
2611 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2612 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2613 void truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2614 int f2fs_precache_extents(struct inode
*inode
);
2615 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2616 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2617 int f2fs_pin_file_control(struct inode
*inode
, bool inc
);
2622 void f2fs_set_inode_flags(struct inode
*inode
);
2623 bool f2fs_inode_chksum_verify(struct f2fs_sb_info
*sbi
, struct page
*page
);
2624 void f2fs_inode_chksum_set(struct f2fs_sb_info
*sbi
, struct page
*page
);
2625 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2626 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2627 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2628 void update_inode(struct inode
*inode
, struct page
*node_page
);
2629 void update_inode_page(struct inode
*inode
);
2630 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2631 void f2fs_evict_inode(struct inode
*inode
);
2632 void handle_failed_inode(struct inode
*inode
);
2637 int update_extension_list(struct f2fs_sb_info
*sbi
, const char *name
,
2638 bool hot
, bool set
);
2639 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2644 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2645 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2646 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2647 f2fs_hash_t namehash
, int *max_slots
,
2648 struct f2fs_dentry_ptr
*d
);
2649 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2650 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2651 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2652 struct f2fs_dentry_ptr
*d
);
2653 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2654 const struct qstr
*new_name
,
2655 const struct qstr
*orig_name
, struct page
*dpage
);
2656 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2657 unsigned int current_depth
);
2658 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2659 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2660 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2661 struct fscrypt_name
*fname
, struct page
**res_page
);
2662 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2663 const struct qstr
*child
, struct page
**res_page
);
2664 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2665 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2666 struct page
**page
);
2667 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2668 struct page
*page
, struct inode
*inode
);
2669 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2670 const struct qstr
*name
, f2fs_hash_t name_hash
,
2671 unsigned int bit_pos
);
2672 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2673 const struct qstr
*orig_name
,
2674 struct inode
*inode
, nid_t ino
, umode_t mode
);
2675 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2676 struct inode
*inode
, nid_t ino
, umode_t mode
);
2677 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2678 struct inode
*inode
, nid_t ino
, umode_t mode
);
2679 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2680 struct inode
*dir
, struct inode
*inode
);
2681 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2682 bool f2fs_empty_dir(struct inode
*dir
);
2684 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2686 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2687 inode
, inode
->i_ino
, inode
->i_mode
);
2693 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2694 void f2fs_inode_synced(struct inode
*inode
);
2695 int f2fs_enable_quota_files(struct f2fs_sb_info
*sbi
, bool rdonly
);
2696 void f2fs_quota_off_umount(struct super_block
*sb
);
2697 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2698 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2699 extern __printf(3, 4)
2700 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2701 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2706 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
,
2707 struct fscrypt_name
*fname
);
2712 struct dnode_of_data
;
2715 int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
);
2716 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2717 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2718 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2719 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2720 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2721 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2722 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2723 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2724 int truncate_xattr_node(struct inode
*inode
);
2725 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2726 int remove_inode_page(struct inode
*inode
);
2727 struct page
*new_inode_page(struct inode
*inode
);
2728 struct page
*new_node_page(struct dnode_of_data
*dn
, unsigned int ofs
);
2729 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2730 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2731 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2732 void move_node_page(struct page
*node_page
, int gc_type
);
2733 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2734 struct writeback_control
*wbc
, bool atomic
);
2735 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
,
2736 bool do_balance
, enum iostat_type io_type
);
2737 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
, bool mount
);
2738 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2739 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2740 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2741 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2742 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2743 int recover_xattr_data(struct inode
*inode
, struct page
*page
);
2744 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2745 void restore_node_summary(struct f2fs_sb_info
*sbi
,
2746 unsigned int segno
, struct f2fs_summary_block
*sum
);
2747 void flush_nat_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2748 int build_node_manager(struct f2fs_sb_info
*sbi
);
2749 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2750 int __init
create_node_manager_caches(void);
2751 void destroy_node_manager_caches(void);
2756 bool need_SSR(struct f2fs_sb_info
*sbi
);
2757 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2758 void drop_inmem_pages_all(struct f2fs_sb_info
*sbi
);
2759 void drop_inmem_pages(struct inode
*inode
);
2760 void drop_inmem_page(struct inode
*inode
, struct page
*page
);
2761 int commit_inmem_pages(struct inode
*inode
);
2762 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2763 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2764 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
, nid_t ino
);
2765 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2766 int f2fs_flush_device_cache(struct f2fs_sb_info
*sbi
);
2767 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2768 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2769 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2770 void drop_discard_cmd(struct f2fs_sb_info
*sbi
);
2771 void stop_discard_thread(struct f2fs_sb_info
*sbi
);
2772 bool f2fs_wait_discard_bios(struct f2fs_sb_info
*sbi
);
2773 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2774 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2775 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2776 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2777 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2778 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2779 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2780 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2781 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
,
2782 enum iostat_type io_type
);
2783 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2784 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2785 int rewrite_data_page(struct f2fs_io_info
*fio
);
2786 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2787 block_t old_blkaddr
, block_t new_blkaddr
,
2788 bool recover_curseg
, bool recover_newaddr
);
2789 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2790 block_t old_addr
, block_t new_addr
,
2791 unsigned char version
, bool recover_curseg
,
2792 bool recover_newaddr
);
2793 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2794 block_t old_blkaddr
, block_t
*new_blkaddr
,
2795 struct f2fs_summary
*sum
, int type
,
2796 struct f2fs_io_info
*fio
, bool add_list
);
2797 void f2fs_wait_on_page_writeback(struct page
*page
,
2798 enum page_type type
, bool ordered
);
2799 void f2fs_wait_on_block_writeback(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2800 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2801 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2802 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2803 unsigned int val
, int alloc
);
2804 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2805 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2806 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2807 int __init
create_segment_manager_caches(void);
2808 void destroy_segment_manager_caches(void);
2809 int rw_hint_to_seg_type(enum rw_hint hint
);
2810 enum rw_hint
io_type_to_rw_hint(struct f2fs_sb_info
*sbi
, enum page_type type
,
2811 enum temp_type temp
);
2816 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2817 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2818 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2819 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2820 bool is_valid_blkaddr(struct f2fs_sb_info
*sbi
, block_t blkaddr
, int type
);
2821 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2822 int type
, bool sync
);
2823 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2824 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2825 long nr_to_write
, enum iostat_type io_type
);
2826 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2827 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2828 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2829 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2830 void set_dirty_device(struct f2fs_sb_info
*sbi
, nid_t ino
,
2831 unsigned int devidx
, int type
);
2832 bool is_dirty_device(struct f2fs_sb_info
*sbi
, nid_t ino
,
2833 unsigned int devidx
, int type
);
2834 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2835 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2836 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2837 void add_orphan_inode(struct inode
*inode
);
2838 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2839 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2840 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2841 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2842 void remove_dirty_inode(struct inode
*inode
);
2843 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2844 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2845 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2846 int __init
create_checkpoint_caches(void);
2847 void destroy_checkpoint_caches(void);
2852 int f2fs_init_post_read_processing(void);
2853 void f2fs_destroy_post_read_processing(void);
2854 void f2fs_submit_merged_write(struct f2fs_sb_info
*sbi
, enum page_type type
);
2855 void f2fs_submit_merged_write_cond(struct f2fs_sb_info
*sbi
,
2856 struct inode
*inode
, nid_t ino
, pgoff_t idx
,
2857 enum page_type type
);
2858 void f2fs_flush_merged_writes(struct f2fs_sb_info
*sbi
);
2859 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2860 int f2fs_submit_page_write(struct f2fs_io_info
*fio
);
2861 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2862 block_t blk_addr
, struct bio
*bio
);
2863 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2864 void set_data_blkaddr(struct dnode_of_data
*dn
);
2865 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2866 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2867 int reserve_new_block(struct dnode_of_data
*dn
);
2868 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2869 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2870 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2871 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2872 int op_flags
, bool for_write
);
2873 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2874 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2876 struct page
*get_new_data_page(struct inode
*inode
,
2877 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2878 int do_write_data_page(struct f2fs_io_info
*fio
);
2879 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2880 int create
, int flag
);
2881 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2882 u64 start
, u64 len
);
2883 bool should_update_inplace(struct inode
*inode
, struct f2fs_io_info
*fio
);
2884 bool should_update_outplace(struct inode
*inode
, struct f2fs_io_info
*fio
);
2885 int __f2fs_write_data_pages(struct address_space
*mapping
,
2886 struct writeback_control
*wbc
,
2887 enum iostat_type io_type
);
2888 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2889 unsigned int length
);
2890 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2891 #ifdef CONFIG_MIGRATION
2892 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2893 struct page
*page
, enum migrate_mode mode
);
2895 bool f2fs_overwrite_io(struct inode
*inode
, loff_t pos
, size_t len
);
2900 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2901 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2902 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2903 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
,
2904 unsigned int segno
);
2905 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2910 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2911 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2916 #ifdef CONFIG_F2FS_STAT_FS
2917 struct f2fs_stat_info
{
2918 struct list_head stat_list
;
2919 struct f2fs_sb_info
*sbi
;
2920 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2921 int main_area_segs
, main_area_sections
, main_area_zones
;
2922 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2923 unsigned long long hit_total
, total_ext
;
2924 int ext_tree
, zombie_tree
, ext_node
;
2925 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_imeta
;
2926 int ndirty_data
, ndirty_qdata
;
2928 unsigned int ndirty_dirs
, ndirty_files
, nquota_files
, ndirty_all
;
2929 int nats
, dirty_nats
, sits
, dirty_sits
;
2930 int free_nids
, avail_nids
, alloc_nids
;
2931 int total_count
, utilization
;
2932 int bg_gc
, nr_wb_cp_data
, nr_wb_data
;
2933 int nr_flushing
, nr_flushed
, flush_list_empty
;
2934 int nr_discarding
, nr_discarded
;
2936 unsigned int undiscard_blks
;
2937 int inline_xattr
, inline_inode
, inline_dir
, append
, update
, orphans
;
2938 int aw_cnt
, max_aw_cnt
, vw_cnt
, max_vw_cnt
;
2939 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2940 unsigned int bimodal
, avg_vblocks
;
2941 int util_free
, util_valid
, util_invalid
;
2942 int rsvd_segs
, overp_segs
;
2943 int dirty_count
, node_pages
, meta_pages
;
2944 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2945 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2946 int bg_node_segs
, bg_data_segs
;
2947 int tot_blks
, data_blks
, node_blks
;
2948 int bg_data_blks
, bg_node_blks
;
2949 int curseg
[NR_CURSEG_TYPE
];
2950 int cursec
[NR_CURSEG_TYPE
];
2951 int curzone
[NR_CURSEG_TYPE
];
2953 unsigned int segment_count
[2];
2954 unsigned int block_count
[2];
2955 unsigned int inplace_count
;
2956 unsigned long long base_mem
, cache_mem
, page_mem
;
2959 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
2961 return (struct f2fs_stat_info
*)sbi
->stat_info
;
2964 #define stat_inc_cp_count(si) ((si)->cp_count++)
2965 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2966 #define stat_inc_call_count(si) ((si)->call_count++)
2967 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2968 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2969 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2970 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2971 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2972 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2973 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2974 #define stat_inc_inline_xattr(inode) \
2976 if (f2fs_has_inline_xattr(inode)) \
2977 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2979 #define stat_dec_inline_xattr(inode) \
2981 if (f2fs_has_inline_xattr(inode)) \
2982 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2984 #define stat_inc_inline_inode(inode) \
2986 if (f2fs_has_inline_data(inode)) \
2987 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2989 #define stat_dec_inline_inode(inode) \
2991 if (f2fs_has_inline_data(inode)) \
2992 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2994 #define stat_inc_inline_dir(inode) \
2996 if (f2fs_has_inline_dentry(inode)) \
2997 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2999 #define stat_dec_inline_dir(inode) \
3001 if (f2fs_has_inline_dentry(inode)) \
3002 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3004 #define stat_inc_seg_type(sbi, curseg) \
3005 ((sbi)->segment_count[(curseg)->alloc_type]++)
3006 #define stat_inc_block_count(sbi, curseg) \
3007 ((sbi)->block_count[(curseg)->alloc_type]++)
3008 #define stat_inc_inplace_blocks(sbi) \
3009 (atomic_inc(&(sbi)->inplace_count))
3010 #define stat_inc_atomic_write(inode) \
3011 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3012 #define stat_dec_atomic_write(inode) \
3013 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3014 #define stat_update_max_atomic_write(inode) \
3016 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3017 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3019 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3021 #define stat_inc_volatile_write(inode) \
3022 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3023 #define stat_dec_volatile_write(inode) \
3024 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3025 #define stat_update_max_volatile_write(inode) \
3027 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3028 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3030 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3032 #define stat_inc_seg_count(sbi, type, gc_type) \
3034 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3036 if ((type) == SUM_TYPE_DATA) { \
3038 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3041 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3045 #define stat_inc_tot_blk_count(si, blks) \
3046 ((si)->tot_blks += (blks))
3048 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3050 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3051 stat_inc_tot_blk_count(si, blks); \
3052 si->data_blks += (blks); \
3053 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3056 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3058 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3059 stat_inc_tot_blk_count(si, blks); \
3060 si->node_blks += (blks); \
3061 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3064 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
3065 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
3066 int __init
f2fs_create_root_stats(void);
3067 void f2fs_destroy_root_stats(void);
3069 #define stat_inc_cp_count(si) do { } while (0)
3070 #define stat_inc_bg_cp_count(si) do { } while (0)
3071 #define stat_inc_call_count(si) do { } while (0)
3072 #define stat_inc_bggc_count(si) do { } while (0)
3073 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3074 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3075 #define stat_inc_total_hit(sb) do { } while (0)
3076 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3077 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3078 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3079 #define stat_inc_inline_xattr(inode) do { } while (0)
3080 #define stat_dec_inline_xattr(inode) do { } while (0)
3081 #define stat_inc_inline_inode(inode) do { } while (0)
3082 #define stat_dec_inline_inode(inode) do { } while (0)
3083 #define stat_inc_inline_dir(inode) do { } while (0)
3084 #define stat_dec_inline_dir(inode) do { } while (0)
3085 #define stat_inc_atomic_write(inode) do { } while (0)
3086 #define stat_dec_atomic_write(inode) do { } while (0)
3087 #define stat_update_max_atomic_write(inode) do { } while (0)
3088 #define stat_inc_volatile_write(inode) do { } while (0)
3089 #define stat_dec_volatile_write(inode) do { } while (0)
3090 #define stat_update_max_volatile_write(inode) do { } while (0)
3091 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3092 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3093 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3094 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3095 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3096 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3097 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3099 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
3100 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
3101 static inline int __init
f2fs_create_root_stats(void) { return 0; }
3102 static inline void f2fs_destroy_root_stats(void) { }
3105 extern const struct file_operations f2fs_dir_operations
;
3106 extern const struct file_operations f2fs_file_operations
;
3107 extern const struct inode_operations f2fs_file_inode_operations
;
3108 extern const struct address_space_operations f2fs_dblock_aops
;
3109 extern const struct address_space_operations f2fs_node_aops
;
3110 extern const struct address_space_operations f2fs_meta_aops
;
3111 extern const struct inode_operations f2fs_dir_inode_operations
;
3112 extern const struct inode_operations f2fs_symlink_inode_operations
;
3113 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
3114 extern const struct inode_operations f2fs_special_inode_operations
;
3115 extern struct kmem_cache
*inode_entry_slab
;
3120 bool f2fs_may_inline_data(struct inode
*inode
);
3121 bool f2fs_may_inline_dentry(struct inode
*inode
);
3122 void read_inline_data(struct page
*page
, struct page
*ipage
);
3123 void truncate_inline_inode(struct inode
*inode
, struct page
*ipage
, u64 from
);
3124 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
3125 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
3126 int f2fs_convert_inline_inode(struct inode
*inode
);
3127 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
3128 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
3129 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
3130 struct fscrypt_name
*fname
, struct page
**res_page
);
3131 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
3132 struct page
*ipage
);
3133 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
3134 const struct qstr
*orig_name
,
3135 struct inode
*inode
, nid_t ino
, umode_t mode
);
3136 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
3137 struct inode
*dir
, struct inode
*inode
);
3138 bool f2fs_empty_inline_dir(struct inode
*dir
);
3139 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
3140 struct fscrypt_str
*fstr
);
3141 int f2fs_inline_data_fiemap(struct inode
*inode
,
3142 struct fiemap_extent_info
*fieinfo
,
3143 __u64 start
, __u64 len
);
3148 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
3149 struct shrink_control
*sc
);
3150 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
3151 struct shrink_control
*sc
);
3152 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
3153 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
3158 struct rb_entry
*__lookup_rb_tree(struct rb_root
*root
,
3159 struct rb_entry
*cached_re
, unsigned int ofs
);
3160 struct rb_node
**__lookup_rb_tree_for_insert(struct f2fs_sb_info
*sbi
,
3161 struct rb_root
*root
, struct rb_node
**parent
,
3163 struct rb_entry
*__lookup_rb_tree_ret(struct rb_root
*root
,
3164 struct rb_entry
*cached_re
, unsigned int ofs
,
3165 struct rb_entry
**prev_entry
, struct rb_entry
**next_entry
,
3166 struct rb_node
***insert_p
, struct rb_node
**insert_parent
,
3168 bool __check_rb_tree_consistence(struct f2fs_sb_info
*sbi
,
3169 struct rb_root
*root
);
3170 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
3171 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
3172 void f2fs_drop_extent_tree(struct inode
*inode
);
3173 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
3174 void f2fs_destroy_extent_tree(struct inode
*inode
);
3175 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
3176 struct extent_info
*ei
);
3177 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
3178 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
3179 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
3180 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
3181 int __init
create_extent_cache(void);
3182 void destroy_extent_cache(void);
3187 int __init
f2fs_init_sysfs(void);
3188 void f2fs_exit_sysfs(void);
3189 int f2fs_register_sysfs(struct f2fs_sb_info
*sbi
);
3190 void f2fs_unregister_sysfs(struct f2fs_sb_info
*sbi
);
3195 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
3197 return file_is_encrypt(inode
);
3200 static inline bool f2fs_encrypted_file(struct inode
*inode
)
3202 return f2fs_encrypted_inode(inode
) && S_ISREG(inode
->i_mode
);
3205 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
3207 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3208 file_set_encrypt(inode
);
3209 inode
->i_flags
|= S_ENCRYPTED
;
3214 * Returns true if the reads of the inode's data need to undergo some
3215 * postprocessing step, like decryption or authenticity verification.
3217 static inline bool f2fs_post_read_required(struct inode
*inode
)
3219 return f2fs_encrypted_file(inode
);
3222 #define F2FS_FEATURE_FUNCS(name, flagname) \
3223 static inline int f2fs_sb_has_##name(struct super_block *sb) \
3225 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_##flagname); \
3228 F2FS_FEATURE_FUNCS(encrypt
, ENCRYPT
);
3229 F2FS_FEATURE_FUNCS(blkzoned
, BLKZONED
);
3230 F2FS_FEATURE_FUNCS(extra_attr
, EXTRA_ATTR
);
3231 F2FS_FEATURE_FUNCS(project_quota
, PRJQUOTA
);
3232 F2FS_FEATURE_FUNCS(inode_chksum
, INODE_CHKSUM
);
3233 F2FS_FEATURE_FUNCS(flexible_inline_xattr
, FLEXIBLE_INLINE_XATTR
);
3234 F2FS_FEATURE_FUNCS(quota_ino
, QUOTA_INO
);
3235 F2FS_FEATURE_FUNCS(inode_crtime
, INODE_CRTIME
);
3236 F2FS_FEATURE_FUNCS(lost_found
, LOST_FOUND
);
3238 #ifdef CONFIG_BLK_DEV_ZONED
3239 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
3240 struct block_device
*bdev
, block_t blkaddr
)
3242 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
3245 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
3246 if (FDEV(i
).bdev
== bdev
)
3247 return FDEV(i
).blkz_type
[zno
];
3252 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
3254 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
3256 return blk_queue_discard(q
) || f2fs_sb_has_blkzoned(sbi
->sb
);
3259 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
3261 clear_opt(sbi
, ADAPTIVE
);
3262 clear_opt(sbi
, LFS
);
3265 case F2FS_MOUNT_ADAPTIVE
:
3266 set_opt(sbi
, ADAPTIVE
);
3268 case F2FS_MOUNT_LFS
:
3274 static inline bool f2fs_may_encrypt(struct inode
*inode
)
3276 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3277 umode_t mode
= inode
->i_mode
;
3279 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));
3285 static inline bool f2fs_force_buffered_io(struct inode
*inode
, int rw
)
3287 return (f2fs_post_read_required(inode
) ||
3288 (rw
== WRITE
&& test_opt(F2FS_I_SB(inode
), LFS
)) ||
3289 F2FS_I_SB(inode
)->s_ndevs
);