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 * indicate meta/data type
208 /* for the list of ino */
210 ORPHAN_INO
, /* for orphan ino list */
211 APPEND_INO
, /* for append ino list */
212 UPDATE_INO
, /* for update ino list */
213 TRANS_DIR_INO
, /* for trasactions dir ino list */
214 FLUSH_INO
, /* for multiple device flushing */
215 MAX_INO_ENTRY
, /* max. list */
219 struct list_head list
; /* list head */
220 nid_t ino
; /* inode number */
221 unsigned int dirty_device
; /* dirty device bitmap */
224 /* for the list of inodes to be GCed */
226 struct list_head list
; /* list head */
227 struct inode
*inode
; /* vfs inode pointer */
230 /* for the bitmap indicate blocks to be discarded */
231 struct discard_entry
{
232 struct list_head list
; /* list head */
233 block_t start_blkaddr
; /* start blockaddr of current segment */
234 unsigned char discard_map
[SIT_VBLOCK_MAP_SIZE
]; /* segment discard bitmap */
237 /* default discard granularity of inner discard thread, unit: block count */
238 #define DEFAULT_DISCARD_GRANULARITY 16
240 /* max discard pend list number */
241 #define MAX_PLIST_NUM 512
242 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
243 (MAX_PLIST_NUM - 1) : (blk_num - 1))
251 struct discard_info
{
252 block_t lstart
; /* logical start address */
253 block_t len
; /* length */
254 block_t start
; /* actual start address in dev */
258 struct rb_node rb_node
; /* rb node located in rb-tree */
261 block_t lstart
; /* logical start address */
262 block_t len
; /* length */
263 block_t start
; /* actual start address in dev */
265 struct discard_info di
; /* discard info */
268 struct list_head list
; /* command list */
269 struct completion wait
; /* compleation */
270 struct block_device
*bdev
; /* bdev */
271 unsigned short ref
; /* reference count */
272 unsigned char state
; /* state */
273 int error
; /* bio error */
284 struct discard_policy
{
285 int type
; /* type of discard */
286 unsigned int min_interval
; /* used for candidates exist */
287 unsigned int max_interval
; /* used for candidates not exist */
288 unsigned int max_requests
; /* # of discards issued per round */
289 unsigned int io_aware_gran
; /* minimum granularity discard not be aware of I/O */
290 bool io_aware
; /* issue discard in idle time */
291 bool sync
; /* submit discard with REQ_SYNC flag */
292 unsigned int granularity
; /* discard granularity */
295 struct discard_cmd_control
{
296 struct task_struct
*f2fs_issue_discard
; /* discard thread */
297 struct list_head entry_list
; /* 4KB discard entry list */
298 struct list_head pend_list
[MAX_PLIST_NUM
];/* store pending entries */
299 struct list_head wait_list
; /* store on-flushing entries */
300 struct list_head fstrim_list
; /* in-flight discard from fstrim */
301 wait_queue_head_t discard_wait_queue
; /* waiting queue for wake-up */
302 unsigned int discard_wake
; /* to wake up discard thread */
303 struct mutex cmd_lock
;
304 unsigned int nr_discards
; /* # of discards in the list */
305 unsigned int max_discards
; /* max. discards to be issued */
306 unsigned int discard_granularity
; /* discard granularity */
307 unsigned int undiscard_blks
; /* # of undiscard blocks */
308 atomic_t issued_discard
; /* # of issued discard */
309 atomic_t issing_discard
; /* # of issing discard */
310 atomic_t discard_cmd_cnt
; /* # of cached cmd count */
311 struct rb_root root
; /* root of discard rb-tree */
314 /* for the list of fsync inodes, used only during recovery */
315 struct fsync_inode_entry
{
316 struct list_head list
; /* list head */
317 struct inode
*inode
; /* vfs inode pointer */
318 block_t blkaddr
; /* block address locating the last fsync */
319 block_t last_dentry
; /* block address locating the last dentry */
322 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
323 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
325 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
326 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
327 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
328 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
330 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
331 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
333 static inline int update_nats_in_cursum(struct f2fs_journal
*journal
, int i
)
335 int before
= nats_in_cursum(journal
);
337 journal
->n_nats
= cpu_to_le16(before
+ i
);
341 static inline int update_sits_in_cursum(struct f2fs_journal
*journal
, int i
)
343 int before
= sits_in_cursum(journal
);
345 journal
->n_sits
= cpu_to_le16(before
+ i
);
349 static inline bool __has_cursum_space(struct f2fs_journal
*journal
,
352 if (type
== NAT_JOURNAL
)
353 return size
<= MAX_NAT_JENTRIES(journal
);
354 return size
<= MAX_SIT_JENTRIES(journal
);
360 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
361 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
362 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
364 #define F2FS_IOCTL_MAGIC 0xf5
365 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
366 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
367 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
368 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
369 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
370 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
371 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
372 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
373 struct f2fs_defragment)
374 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
375 struct f2fs_move_range)
376 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
377 struct f2fs_flush_device)
378 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
379 struct f2fs_gc_range)
380 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
381 #define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
382 #define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
383 #define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
385 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
386 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
387 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
390 * should be same as XFS_IOC_GOINGDOWN.
391 * Flags for going down operation used by FS_IOC_GOINGDOWN
393 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
394 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
395 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
396 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
397 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
399 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
401 * ioctl commands in 32 bit emulation
403 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
404 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
405 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
408 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
409 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
411 struct f2fs_gc_range
{
417 struct f2fs_defragment
{
422 struct f2fs_move_range
{
423 u32 dst_fd
; /* destination fd */
424 u64 pos_in
; /* start position in src_fd */
425 u64 pos_out
; /* start position in dst_fd */
426 u64 len
; /* size to move */
429 struct f2fs_flush_device
{
430 u32 dev_num
; /* device number to flush */
431 u32 segments
; /* # of segments to flush */
434 /* for inline stuff */
435 #define DEF_INLINE_RESERVED_SIZE 1
436 #define DEF_MIN_INLINE_SIZE 1
437 static inline int get_extra_isize(struct inode
*inode
);
438 static inline int get_inline_xattr_addrs(struct inode
*inode
);
439 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
440 (CUR_ADDRS_PER_INODE(inode) - \
441 get_inline_xattr_addrs(inode) - \
442 DEF_INLINE_RESERVED_SIZE))
445 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
446 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
448 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
449 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
450 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
451 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
452 NR_INLINE_DENTRY(inode) + \
453 INLINE_DENTRY_BITMAP_SIZE(inode)))
456 * For INODE and NODE manager
458 /* for directory operations */
459 struct f2fs_dentry_ptr
{
462 struct f2fs_dir_entry
*dentry
;
463 __u8 (*filename
)[F2FS_SLOT_LEN
];
468 static inline void make_dentry_ptr_block(struct inode
*inode
,
469 struct f2fs_dentry_ptr
*d
, struct f2fs_dentry_block
*t
)
472 d
->max
= NR_DENTRY_IN_BLOCK
;
473 d
->nr_bitmap
= SIZE_OF_DENTRY_BITMAP
;
474 d
->bitmap
= t
->dentry_bitmap
;
475 d
->dentry
= t
->dentry
;
476 d
->filename
= t
->filename
;
479 static inline void make_dentry_ptr_inline(struct inode
*inode
,
480 struct f2fs_dentry_ptr
*d
, void *t
)
482 int entry_cnt
= NR_INLINE_DENTRY(inode
);
483 int bitmap_size
= INLINE_DENTRY_BITMAP_SIZE(inode
);
484 int reserved_size
= INLINE_RESERVED_SIZE(inode
);
488 d
->nr_bitmap
= bitmap_size
;
490 d
->dentry
= t
+ bitmap_size
+ reserved_size
;
491 d
->filename
= t
+ bitmap_size
+ reserved_size
+
492 SIZE_OF_DIR_ENTRY
* entry_cnt
;
496 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
497 * as its node offset to distinguish from index node blocks.
498 * But some bits are used to mark the node block.
500 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
503 ALLOC_NODE
, /* allocate a new node page if needed */
504 LOOKUP_NODE
, /* look up a node without readahead */
506 * look up a node with readahead called
511 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
513 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
515 /* vector size for gang look-up from extent cache that consists of radix tree */
516 #define EXT_TREE_VEC_SIZE 64
518 /* for in-memory extent cache entry */
519 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
521 /* number of extent info in extent cache we try to shrink */
522 #define EXTENT_CACHE_SHRINK_NUMBER 128
525 struct rb_node rb_node
; /* rb node located in rb-tree */
526 unsigned int ofs
; /* start offset of the entry */
527 unsigned int len
; /* length of the entry */
531 unsigned int fofs
; /* start offset in a file */
532 unsigned int len
; /* length of the extent */
533 u32 blk
; /* start block address of the extent */
537 struct rb_node rb_node
;
544 struct extent_info ei
; /* extent info */
547 struct list_head list
; /* node in global extent list of sbi */
548 struct extent_tree
*et
; /* extent tree pointer */
552 nid_t ino
; /* inode number */
553 struct rb_root root
; /* root of extent info rb-tree */
554 struct extent_node
*cached_en
; /* recently accessed extent node */
555 struct extent_info largest
; /* largested extent info */
556 struct list_head list
; /* to be used by sbi->zombie_list */
557 rwlock_t lock
; /* protect extent info rb-tree */
558 atomic_t node_cnt
; /* # of extent node in rb-tree*/
562 * This structure is taken from ext4_map_blocks.
564 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
566 #define F2FS_MAP_NEW (1 << BH_New)
567 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
568 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
569 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
572 struct f2fs_map_blocks
{
576 unsigned int m_flags
;
577 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
578 pgoff_t
*m_next_extent
; /* point to next possible extent */
582 /* for flag in get_data_block */
584 F2FS_GET_BLOCK_DEFAULT
,
585 F2FS_GET_BLOCK_FIEMAP
,
587 F2FS_GET_BLOCK_PRE_DIO
,
588 F2FS_GET_BLOCK_PRE_AIO
,
589 F2FS_GET_BLOCK_PRECACHE
,
593 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
595 #define FADVISE_COLD_BIT 0x01
596 #define FADVISE_LOST_PINO_BIT 0x02
597 #define FADVISE_ENCRYPT_BIT 0x04
598 #define FADVISE_ENC_NAME_BIT 0x08
599 #define FADVISE_KEEP_SIZE_BIT 0x10
600 #define FADVISE_HOT_BIT 0x20
601 #define FADVISE_VERITY_BIT 0x40 /* reserved */
603 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
604 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
605 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
606 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
607 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
608 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
609 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
610 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
611 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
612 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
613 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
614 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
615 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
616 #define file_is_hot(inode) is_file(inode, FADVISE_HOT_BIT)
617 #define file_set_hot(inode) set_file(inode, FADVISE_HOT_BIT)
618 #define file_clear_hot(inode) clear_file(inode, FADVISE_HOT_BIT)
620 #define DEF_DIR_LEVEL 0
622 struct f2fs_inode_info
{
623 struct inode vfs_inode
; /* serve a vfs inode */
624 unsigned long i_flags
; /* keep an inode flags for ioctl */
625 unsigned char i_advise
; /* use to give file attribute hints */
626 unsigned char i_dir_level
; /* use for dentry level for large dir */
628 unsigned int i_current_depth
; /* only for directory depth */
629 unsigned short i_gc_failures
; /* only for regular file */
631 unsigned int i_pino
; /* parent inode number */
632 umode_t i_acl_mode
; /* keep file acl mode temporarily */
634 /* Use below internally in f2fs*/
635 unsigned long flags
; /* use to pass per-file flags */
636 struct rw_semaphore i_sem
; /* protect fi info */
637 atomic_t dirty_pages
; /* # of dirty pages */
638 f2fs_hash_t chash
; /* hash value of given file name */
639 unsigned int clevel
; /* maximum level of given file name */
640 struct task_struct
*task
; /* lookup and create consistency */
641 struct task_struct
*cp_task
; /* separate cp/wb IO stats*/
642 nid_t i_xattr_nid
; /* node id that contains xattrs */
643 loff_t last_disk_size
; /* lastly written file size */
646 struct dquot
*i_dquot
[MAXQUOTAS
];
648 /* quota space reservation, managed internally by quota code */
649 qsize_t i_reserved_quota
;
651 struct list_head dirty_list
; /* dirty list for dirs and files */
652 struct list_head gdirty_list
; /* linked in global dirty list */
653 struct list_head inmem_ilist
; /* list for inmem inodes */
654 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
655 struct task_struct
*inmem_task
; /* store inmemory task */
656 struct mutex inmem_lock
; /* lock for inmemory pages */
657 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
658 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
659 struct rw_semaphore i_mmap_sem
;
660 struct rw_semaphore i_xattr_sem
; /* avoid racing between reading and changing EAs */
662 int i_extra_isize
; /* size of extra space located in i_addr */
663 kprojid_t i_projid
; /* id for project quota */
664 int i_inline_xattr_size
; /* inline xattr size */
665 struct timespec i_crtime
; /* inode creation time */
666 struct timespec i_disk_time
[4]; /* inode disk times */
669 static inline void get_extent_info(struct extent_info
*ext
,
670 struct f2fs_extent
*i_ext
)
672 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
673 ext
->blk
= le32_to_cpu(i_ext
->blk
);
674 ext
->len
= le32_to_cpu(i_ext
->len
);
677 static inline void set_raw_extent(struct extent_info
*ext
,
678 struct f2fs_extent
*i_ext
)
680 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
681 i_ext
->blk
= cpu_to_le32(ext
->blk
);
682 i_ext
->len
= cpu_to_le32(ext
->len
);
685 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
686 u32 blk
, unsigned int len
)
693 static inline bool __is_discard_mergeable(struct discard_info
*back
,
694 struct discard_info
*front
)
696 return (back
->lstart
+ back
->len
== front
->lstart
) &&
697 (back
->len
+ front
->len
< DEF_MAX_DISCARD_LEN
);
700 static inline bool __is_discard_back_mergeable(struct discard_info
*cur
,
701 struct discard_info
*back
)
703 return __is_discard_mergeable(back
, cur
);
706 static inline bool __is_discard_front_mergeable(struct discard_info
*cur
,
707 struct discard_info
*front
)
709 return __is_discard_mergeable(cur
, front
);
712 static inline bool __is_extent_mergeable(struct extent_info
*back
,
713 struct extent_info
*front
)
715 return (back
->fofs
+ back
->len
== front
->fofs
&&
716 back
->blk
+ back
->len
== front
->blk
);
719 static inline bool __is_back_mergeable(struct extent_info
*cur
,
720 struct extent_info
*back
)
722 return __is_extent_mergeable(back
, cur
);
725 static inline bool __is_front_mergeable(struct extent_info
*cur
,
726 struct extent_info
*front
)
728 return __is_extent_mergeable(cur
, front
);
731 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
732 static inline void __try_update_largest_extent(struct inode
*inode
,
733 struct extent_tree
*et
, struct extent_node
*en
)
735 if (en
->ei
.len
> et
->largest
.len
) {
736 et
->largest
= en
->ei
;
737 f2fs_mark_inode_dirty_sync(inode
, true);
742 * For free nid management
745 FREE_NID
, /* newly added to free nid list */
746 PREALLOC_NID
, /* it is preallocated */
750 struct f2fs_nm_info
{
751 block_t nat_blkaddr
; /* base disk address of NAT */
752 nid_t max_nid
; /* maximum possible node ids */
753 nid_t available_nids
; /* # of available node ids */
754 nid_t next_scan_nid
; /* the next nid to be scanned */
755 unsigned int ram_thresh
; /* control the memory footprint */
756 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
757 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
759 /* NAT cache management */
760 struct radix_tree_root nat_root
;/* root of the nat entry cache */
761 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
762 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
763 struct list_head nat_entries
; /* cached nat entry list (clean) */
764 unsigned int nat_cnt
; /* the # of cached nat entries */
765 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
766 unsigned int nat_blocks
; /* # of nat blocks */
768 /* free node ids management */
769 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
770 struct list_head free_nid_list
; /* list for free nids excluding preallocated nids */
771 unsigned int nid_cnt
[MAX_NID_STATE
]; /* the number of free node id */
772 spinlock_t nid_list_lock
; /* protect nid lists ops */
773 struct mutex build_lock
; /* lock for build free nids */
774 unsigned char **free_nid_bitmap
;
775 unsigned char *nat_block_bitmap
;
776 unsigned short *free_nid_count
; /* free nid count of NAT block */
779 char *nat_bitmap
; /* NAT bitmap pointer */
781 unsigned int nat_bits_blocks
; /* # of nat bits blocks */
782 unsigned char *nat_bits
; /* NAT bits blocks */
783 unsigned char *full_nat_bits
; /* full NAT pages */
784 unsigned char *empty_nat_bits
; /* empty NAT pages */
785 #ifdef CONFIG_F2FS_CHECK_FS
786 char *nat_bitmap_mir
; /* NAT bitmap mirror */
788 int bitmap_size
; /* bitmap size */
792 * this structure is used as one of function parameters.
793 * all the information are dedicated to a given direct node block determined
794 * by the data offset in a file.
796 struct dnode_of_data
{
797 struct inode
*inode
; /* vfs inode pointer */
798 struct page
*inode_page
; /* its inode page, NULL is possible */
799 struct page
*node_page
; /* cached direct node page */
800 nid_t nid
; /* node id of the direct node block */
801 unsigned int ofs_in_node
; /* data offset in the node page */
802 bool inode_page_locked
; /* inode page is locked or not */
803 bool node_changed
; /* is node block changed */
804 char cur_level
; /* level of hole node page */
805 char max_level
; /* level of current page located */
806 block_t data_blkaddr
; /* block address of the node block */
809 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
810 struct page
*ipage
, struct page
*npage
, nid_t nid
)
812 memset(dn
, 0, sizeof(*dn
));
814 dn
->inode_page
= ipage
;
815 dn
->node_page
= npage
;
822 * By default, there are 6 active log areas across the whole main area.
823 * When considering hot and cold data separation to reduce cleaning overhead,
824 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
826 * In the current design, you should not change the numbers intentionally.
827 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
828 * logs individually according to the underlying devices. (default: 6)
829 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
830 * data and 8 for node logs.
832 #define NR_CURSEG_DATA_TYPE (3)
833 #define NR_CURSEG_NODE_TYPE (3)
834 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
837 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
838 CURSEG_WARM_DATA
, /* data blocks */
839 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
840 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
841 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
842 CURSEG_COLD_NODE
, /* indirect node blocks */
847 struct completion wait
;
848 struct llist_node llnode
;
853 struct flush_cmd_control
{
854 struct task_struct
*f2fs_issue_flush
; /* flush thread */
855 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
856 atomic_t issued_flush
; /* # of issued flushes */
857 atomic_t issing_flush
; /* # of issing flushes */
858 struct llist_head issue_list
; /* list for command issue */
859 struct llist_node
*dispatch_list
; /* list for command dispatch */
862 struct f2fs_sm_info
{
863 struct sit_info
*sit_info
; /* whole segment information */
864 struct free_segmap_info
*free_info
; /* free segment information */
865 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
866 struct curseg_info
*curseg_array
; /* active segment information */
868 struct rw_semaphore curseg_lock
; /* for preventing curseg change */
870 block_t seg0_blkaddr
; /* block address of 0'th segment */
871 block_t main_blkaddr
; /* start block address of main area */
872 block_t ssa_blkaddr
; /* start block address of SSA area */
874 unsigned int segment_count
; /* total # of segments */
875 unsigned int main_segments
; /* # of segments in main area */
876 unsigned int reserved_segments
; /* # of reserved segments */
877 unsigned int ovp_segments
; /* # of overprovision segments */
879 /* a threshold to reclaim prefree segments */
880 unsigned int rec_prefree_segments
;
882 /* for batched trimming */
883 unsigned int trim_sections
; /* # of sections to trim */
885 struct list_head sit_entry_set
; /* sit entry set list */
887 unsigned int ipu_policy
; /* in-place-update policy */
888 unsigned int min_ipu_util
; /* in-place-update threshold */
889 unsigned int min_fsync_blocks
; /* threshold for fsync */
890 unsigned int min_hot_blocks
; /* threshold for hot block allocation */
891 unsigned int min_ssr_sections
; /* threshold to trigger SSR allocation */
893 /* for flush command control */
894 struct flush_cmd_control
*fcc_info
;
896 /* for discard command control */
897 struct discard_cmd_control
*dcc_info
;
904 * COUNT_TYPE for monitoring
906 * f2fs monitors the number of several block types such as on-writeback,
907 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
909 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
924 * The below are the page types of bios used in submit_bio().
925 * The available types are:
926 * DATA User data pages. It operates as async mode.
927 * NODE Node pages. It operates as async mode.
928 * META FS metadata pages such as SIT, NAT, CP.
929 * NR_PAGE_TYPE The number of page types.
930 * META_FLUSH Make sure the previous pages are written
931 * with waiting the bio's completion
932 * ... Only can be used with META.
934 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
941 INMEM
, /* the below types are used by tracepoints only. */
950 HOT
= 0, /* must be zero for meta bio */
956 enum need_lock_type
{
962 enum cp_reason_type
{
976 APP_DIRECT_IO
, /* app direct IOs */
977 APP_BUFFERED_IO
, /* app buffered IOs */
978 APP_WRITE_IO
, /* app write IOs */
979 APP_MAPPED_IO
, /* app mapped IOs */
980 FS_DATA_IO
, /* data IOs from kworker/fsync/reclaimer */
981 FS_NODE_IO
, /* node IOs from kworker/fsync/reclaimer */
982 FS_META_IO
, /* meta IOs from kworker/reclaimer */
983 FS_GC_DATA_IO
, /* data IOs from forground gc */
984 FS_GC_NODE_IO
, /* node IOs from forground gc */
985 FS_CP_DATA_IO
, /* data IOs from checkpoint */
986 FS_CP_NODE_IO
, /* node IOs from checkpoint */
987 FS_CP_META_IO
, /* meta IOs from checkpoint */
988 FS_DISCARD
, /* discard */
992 struct f2fs_io_info
{
993 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
994 nid_t ino
; /* inode number */
995 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
996 enum temp_type temp
; /* contains HOT/WARM/COLD */
997 int op
; /* contains REQ_OP_ */
998 int op_flags
; /* req_flag_bits */
999 block_t new_blkaddr
; /* new block address to be written */
1000 block_t old_blkaddr
; /* old block address before Cow */
1001 struct page
*page
; /* page to be written */
1002 struct page
*encrypted_page
; /* encrypted page */
1003 struct list_head list
; /* serialize IOs */
1004 bool submitted
; /* indicate IO submission */
1005 int need_lock
; /* indicate we need to lock cp_rwsem */
1006 bool in_list
; /* indicate fio is in io_list */
1007 bool is_meta
; /* indicate borrow meta inode mapping or not */
1008 enum iostat_type io_type
; /* io type */
1009 struct writeback_control
*io_wbc
; /* writeback control */
1012 #define is_read_io(rw) ((rw) == READ)
1013 struct f2fs_bio_info
{
1014 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
1015 struct bio
*bio
; /* bios to merge */
1016 sector_t last_block_in_bio
; /* last block number */
1017 struct f2fs_io_info fio
; /* store buffered io info. */
1018 struct rw_semaphore io_rwsem
; /* blocking op for bio */
1019 spinlock_t io_lock
; /* serialize DATA/NODE IOs */
1020 struct list_head io_list
; /* track fios */
1023 #define FDEV(i) (sbi->devs[i])
1024 #define RDEV(i) (raw_super->devs[i])
1025 struct f2fs_dev_info
{
1026 struct block_device
*bdev
;
1027 char path
[MAX_PATH_LEN
];
1028 unsigned int total_segments
;
1031 #ifdef CONFIG_BLK_DEV_ZONED
1032 unsigned int nr_blkz
; /* Total number of zones */
1033 u8
*blkz_type
; /* Array of zones type */
1038 DIR_INODE
, /* for dirty dir inode */
1039 FILE_INODE
, /* for dirty regular/symlink inode */
1040 DIRTY_META
, /* for all dirtied inode metadata */
1041 ATOMIC_FILE
, /* for all atomic files */
1045 /* for inner inode cache management */
1046 struct inode_management
{
1047 struct radix_tree_root ino_root
; /* ino entry array */
1048 spinlock_t ino_lock
; /* for ino entry lock */
1049 struct list_head ino_list
; /* inode list head */
1050 unsigned long ino_num
; /* number of entries */
1053 /* For s_flag in struct f2fs_sb_info */
1055 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
1056 SBI_IS_CLOSE
, /* specify unmounting */
1057 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
1058 SBI_POR_DOING
, /* recovery is doing or not */
1059 SBI_NEED_SB_WRITE
, /* need to recover superblock */
1060 SBI_NEED_CP
, /* need to checkpoint */
1070 WHINT_MODE_OFF
, /* not pass down write hints */
1071 WHINT_MODE_USER
, /* try to pass down hints given by users */
1072 WHINT_MODE_FS
, /* pass down hints with F2FS policy */
1076 ALLOC_MODE_DEFAULT
, /* stay default */
1077 ALLOC_MODE_REUSE
, /* reuse segments as much as possible */
1081 FSYNC_MODE_POSIX
, /* fsync follows posix semantics */
1082 FSYNC_MODE_STRICT
, /* fsync behaves in line with ext4 */
1083 FSYNC_MODE_NOBARRIER
, /* fsync behaves nobarrier based on posix */
1086 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1087 #define DUMMY_ENCRYPTION_ENABLED(sbi) \
1088 (unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
1090 #define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
1093 struct f2fs_sb_info
{
1094 struct super_block
*sb
; /* pointer to VFS super block */
1095 struct proc_dir_entry
*s_proc
; /* proc entry */
1096 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
1097 struct rw_semaphore sb_lock
; /* lock for raw super block */
1098 int valid_super_block
; /* valid super block no */
1099 unsigned long s_flag
; /* flags for sbi */
1101 #ifdef CONFIG_BLK_DEV_ZONED
1102 unsigned int blocks_per_blkz
; /* F2FS blocks per zone */
1103 unsigned int log_blocks_per_blkz
; /* log2 F2FS blocks per zone */
1106 /* for node-related operations */
1107 struct f2fs_nm_info
*nm_info
; /* node manager */
1108 struct inode
*node_inode
; /* cache node blocks */
1110 /* for segment-related operations */
1111 struct f2fs_sm_info
*sm_info
; /* segment manager */
1113 /* for bio operations */
1114 struct f2fs_bio_info
*write_io
[NR_PAGE_TYPE
]; /* for write bios */
1115 struct mutex wio_mutex
[NR_PAGE_TYPE
- 1][NR_TEMP_TYPE
];
1116 /* bio ordering for NODE/DATA */
1117 mempool_t
*write_io_dummy
; /* Dummy pages */
1119 /* for checkpoint */
1120 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
1121 int cur_cp_pack
; /* remain current cp pack */
1122 spinlock_t cp_lock
; /* for flag in ckpt */
1123 struct inode
*meta_inode
; /* cache meta blocks */
1124 struct mutex cp_mutex
; /* checkpoint procedure lock */
1125 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
1126 struct rw_semaphore node_write
; /* locking node writes */
1127 struct rw_semaphore node_change
; /* locking node change */
1128 wait_queue_head_t cp_wait
;
1129 unsigned long last_time
[MAX_TIME
]; /* to store time in jiffies */
1130 long interval_time
[MAX_TIME
]; /* to store thresholds */
1132 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
1134 /* for orphan inode, use 0'th array */
1135 unsigned int max_orphans
; /* max orphan inodes */
1137 /* for inode management */
1138 struct list_head inode_list
[NR_INODE_TYPE
]; /* dirty inode list */
1139 spinlock_t inode_lock
[NR_INODE_TYPE
]; /* for dirty inode list lock */
1141 /* for extent tree cache */
1142 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
1143 struct mutex extent_tree_lock
; /* locking extent radix tree */
1144 struct list_head extent_list
; /* lru list for shrinker */
1145 spinlock_t extent_lock
; /* locking extent lru list */
1146 atomic_t total_ext_tree
; /* extent tree count */
1147 struct list_head zombie_list
; /* extent zombie tree list */
1148 atomic_t total_zombie_tree
; /* extent zombie tree count */
1149 atomic_t total_ext_node
; /* extent info count */
1151 /* basic filesystem units */
1152 unsigned int log_sectors_per_block
; /* log2 sectors per block */
1153 unsigned int log_blocksize
; /* log2 block size */
1154 unsigned int blocksize
; /* block size */
1155 unsigned int root_ino_num
; /* root inode number*/
1156 unsigned int node_ino_num
; /* node inode number*/
1157 unsigned int meta_ino_num
; /* meta inode number*/
1158 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
1159 unsigned int blocks_per_seg
; /* blocks per segment */
1160 unsigned int segs_per_sec
; /* segments per section */
1161 unsigned int secs_per_zone
; /* sections per zone */
1162 unsigned int total_sections
; /* total section count */
1163 unsigned int total_node_count
; /* total node block count */
1164 unsigned int total_valid_node_count
; /* valid node block count */
1165 loff_t max_file_blocks
; /* max block index of file */
1166 int dir_level
; /* directory level */
1167 unsigned int trigger_ssr_threshold
; /* threshold to trigger ssr */
1168 int readdir_ra
; /* readahead inode in readdir */
1170 block_t user_block_count
; /* # of user blocks */
1171 block_t total_valid_block_count
; /* # of valid blocks */
1172 block_t discard_blks
; /* discard command candidats */
1173 block_t last_valid_block_count
; /* for recovery */
1174 block_t reserved_blocks
; /* configurable reserved blocks */
1175 block_t current_reserved_blocks
; /* current reserved blocks */
1177 unsigned int nquota_files
; /* # of quota sysfile */
1179 u32 s_next_generation
; /* for NFS support */
1181 /* # of pages, see count_type */
1182 atomic_t nr_pages
[NR_COUNT_TYPE
];
1183 /* # of allocated blocks */
1184 struct percpu_counter alloc_valid_block_count
;
1186 /* writeback control */
1187 atomic_t wb_sync_req
; /* count # of WB_SYNC threads */
1189 /* valid inode count */
1190 struct percpu_counter total_valid_inode_count
;
1192 struct f2fs_mount_info mount_opt
; /* mount options */
1194 /* for cleaning operations */
1195 struct mutex gc_mutex
; /* mutex for GC */
1196 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
1197 unsigned int cur_victim_sec
; /* current victim section num */
1199 /* threshold for converting bg victims for fg */
1202 /* threshold for gc trials on pinned files */
1203 u64 gc_pin_file_threshold
;
1205 /* maximum # of trials to find a victim segment for SSR and GC */
1206 unsigned int max_victim_search
;
1209 * for stat information.
1210 * one is for the LFS mode, and the other is for the SSR mode.
1212 #ifdef CONFIG_F2FS_STAT_FS
1213 struct f2fs_stat_info
*stat_info
; /* FS status information */
1214 unsigned int segment_count
[2]; /* # of allocated segments */
1215 unsigned int block_count
[2]; /* # of allocated blocks */
1216 atomic_t inplace_count
; /* # of inplace update */
1217 atomic64_t total_hit_ext
; /* # of lookup extent cache */
1218 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
1219 atomic64_t read_hit_largest
; /* # of hit largest extent node */
1220 atomic64_t read_hit_cached
; /* # of hit cached extent node */
1221 atomic_t inline_xattr
; /* # of inline_xattr inodes */
1222 atomic_t inline_inode
; /* # of inline_data inodes */
1223 atomic_t inline_dir
; /* # of inline_dentry inodes */
1224 atomic_t aw_cnt
; /* # of atomic writes */
1225 atomic_t vw_cnt
; /* # of volatile writes */
1226 atomic_t max_aw_cnt
; /* max # of atomic writes */
1227 atomic_t max_vw_cnt
; /* max # of volatile writes */
1228 int bg_gc
; /* background gc calls */
1229 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
1231 spinlock_t stat_lock
; /* lock for stat operations */
1233 /* For app/fs IO statistics */
1234 spinlock_t iostat_lock
;
1235 unsigned long long write_iostat
[NR_IO_TYPE
];
1238 /* For sysfs suppport */
1239 struct kobject s_kobj
;
1240 struct completion s_kobj_unregister
;
1242 /* For shrinker support */
1243 struct list_head s_list
;
1244 int s_ndevs
; /* number of devices */
1245 struct f2fs_dev_info
*devs
; /* for device list */
1246 unsigned int dirty_device
; /* for checkpoint data flush */
1247 spinlock_t dev_lock
; /* protect dirty_device */
1248 struct mutex umount_mutex
;
1249 unsigned int shrinker_run_no
;
1251 /* For write statistics */
1252 u64 sectors_written_start
;
1255 /* Reference to checksum algorithm driver via cryptoapi */
1256 struct crypto_shash
*s_chksum_driver
;
1258 /* Precomputed FS UUID checksum for seeding other checksums */
1259 __u32 s_chksum_seed
;
1262 #ifdef CONFIG_F2FS_FAULT_INJECTION
1263 #define f2fs_show_injection_info(type) \
1264 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1265 KERN_INFO, fault_name[type], \
1266 __func__, __builtin_return_address(0))
1267 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
1269 struct f2fs_fault_info
*ffi
= &F2FS_OPTION(sbi
).fault_info
;
1271 if (!ffi
->inject_rate
)
1274 if (!IS_FAULT_SET(ffi
, type
))
1277 atomic_inc(&ffi
->inject_ops
);
1278 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
1279 atomic_set(&ffi
->inject_ops
, 0);
1286 /* For write statistics. Suppose sector size is 512 bytes,
1287 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1289 #define BD_PART_WRITTEN(s) \
1290 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1291 (s)->sectors_written_start) >> 1)
1293 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
1295 sbi
->last_time
[type
] = jiffies
;
1298 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
1300 unsigned long interval
= sbi
->interval_time
[type
] * HZ
;
1302 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
1305 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
1307 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
1308 struct request_queue
*q
= bdev_get_queue(bdev
);
1309 struct request_list
*rl
= &q
->root_rl
;
1311 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
1314 return f2fs_time_over(sbi
, REQ_TIME
);
1320 static inline u32
__f2fs_crc32(struct f2fs_sb_info
*sbi
, u32 crc
,
1321 const void *address
, unsigned int length
)
1324 struct shash_desc shash
;
1329 BUG_ON(crypto_shash_descsize(sbi
->s_chksum_driver
) != sizeof(desc
.ctx
));
1331 desc
.shash
.tfm
= sbi
->s_chksum_driver
;
1332 desc
.shash
.flags
= 0;
1333 *(u32
*)desc
.ctx
= crc
;
1335 err
= crypto_shash_update(&desc
.shash
, address
, length
);
1338 return *(u32
*)desc
.ctx
;
1341 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1342 unsigned int length
)
1344 return __f2fs_crc32(sbi
, F2FS_SUPER_MAGIC
, address
, length
);
1347 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1348 void *buf
, size_t buf_size
)
1350 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1353 static inline u32
f2fs_chksum(struct f2fs_sb_info
*sbi
, u32 crc
,
1354 const void *address
, unsigned int length
)
1356 return __f2fs_crc32(sbi
, crc
, address
, length
);
1359 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1361 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1364 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1366 return sb
->s_fs_info
;
1369 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1371 return F2FS_SB(inode
->i_sb
);
1374 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1376 return F2FS_I_SB(mapping
->host
);
1379 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1381 return F2FS_M_SB(page
->mapping
);
1384 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1386 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1389 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1391 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1394 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1396 return (struct f2fs_node
*)page_address(page
);
1399 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1401 return &((struct f2fs_node
*)page_address(page
))->i
;
1404 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1406 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1409 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1411 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1414 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1416 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1419 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1421 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1424 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1426 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1429 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1431 return sbi
->meta_inode
->i_mapping
;
1434 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1436 return sbi
->node_inode
->i_mapping
;
1439 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1441 return test_bit(type
, &sbi
->s_flag
);
1444 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1446 set_bit(type
, &sbi
->s_flag
);
1449 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1451 clear_bit(type
, &sbi
->s_flag
);
1454 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1456 return le64_to_cpu(cp
->checkpoint_ver
);
1459 static inline unsigned long f2fs_qf_ino(struct super_block
*sb
, int type
)
1461 if (type
< F2FS_MAX_QUOTAS
)
1462 return le32_to_cpu(F2FS_SB(sb
)->raw_super
->qf_ino
[type
]);
1466 static inline __u64
cur_cp_crc(struct f2fs_checkpoint
*cp
)
1468 size_t crc_offset
= le32_to_cpu(cp
->checksum_offset
);
1469 return le32_to_cpu(*((__le32
*)((unsigned char *)cp
+ crc_offset
)));
1472 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1474 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1476 return ckpt_flags
& f
;
1479 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1481 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1484 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1486 unsigned int ckpt_flags
;
1488 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1490 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1493 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1495 unsigned long flags
;
1497 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1498 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1499 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1502 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1504 unsigned int ckpt_flags
;
1506 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1508 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1511 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1513 unsigned long flags
;
1515 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1516 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1517 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1520 static inline void disable_nat_bits(struct f2fs_sb_info
*sbi
, bool lock
)
1522 unsigned long flags
;
1524 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
1527 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1528 __clear_ckpt_flags(F2FS_CKPT(sbi
), CP_NAT_BITS_FLAG
);
1529 kfree(NM_I(sbi
)->nat_bits
);
1530 NM_I(sbi
)->nat_bits
= NULL
;
1532 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1535 static inline bool enabled_nat_bits(struct f2fs_sb_info
*sbi
,
1536 struct cp_control
*cpc
)
1538 bool set
= is_set_ckpt_flags(sbi
, CP_NAT_BITS_FLAG
);
1540 return (cpc
) ? (cpc
->reason
& CP_UMOUNT
) && set
: set
;
1543 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1545 down_read(&sbi
->cp_rwsem
);
1548 static inline int f2fs_trylock_op(struct f2fs_sb_info
*sbi
)
1550 return down_read_trylock(&sbi
->cp_rwsem
);
1553 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1555 up_read(&sbi
->cp_rwsem
);
1558 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1560 down_write(&sbi
->cp_rwsem
);
1563 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1565 up_write(&sbi
->cp_rwsem
);
1568 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1570 int reason
= CP_SYNC
;
1572 if (test_opt(sbi
, FASTBOOT
))
1573 reason
= CP_FASTBOOT
;
1574 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1579 static inline bool __remain_node_summaries(int reason
)
1581 return (reason
& (CP_UMOUNT
| CP_FASTBOOT
));
1584 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1586 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1587 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1591 * Check whether the inode has blocks or not
1593 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1595 block_t xattr_block
= F2FS_I(inode
)->i_xattr_nid
? 1 : 0;
1597 return (inode
->i_blocks
>> F2FS_LOG_SECTORS_PER_BLOCK
) > xattr_block
;
1600 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1602 return ofs
== XATTR_NODE_OFFSET
;
1605 static inline bool __allow_reserved_blocks(struct f2fs_sb_info
*sbi
,
1606 struct inode
*inode
, bool cap
)
1610 if (!test_opt(sbi
, RESERVE_ROOT
))
1612 if (IS_NOQUOTA(inode
))
1614 if (uid_eq(F2FS_OPTION(sbi
).s_resuid
, current_fsuid()))
1616 if (!gid_eq(F2FS_OPTION(sbi
).s_resgid
, GLOBAL_ROOT_GID
) &&
1617 in_group_p(F2FS_OPTION(sbi
).s_resgid
))
1619 if (cap
&& capable(CAP_SYS_RESOURCE
))
1624 static inline void f2fs_i_blocks_write(struct inode
*, block_t
, bool, bool);
1625 static inline int inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1626 struct inode
*inode
, blkcnt_t
*count
)
1628 blkcnt_t diff
= 0, release
= 0;
1629 block_t avail_user_block_count
;
1632 ret
= dquot_reserve_block(inode
, *count
);
1636 #ifdef CONFIG_F2FS_FAULT_INJECTION
1637 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1638 f2fs_show_injection_info(FAULT_BLOCK
);
1644 * let's increase this in prior to actual block count change in order
1645 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1647 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1649 spin_lock(&sbi
->stat_lock
);
1650 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1651 avail_user_block_count
= sbi
->user_block_count
-
1652 sbi
->current_reserved_blocks
;
1654 if (!__allow_reserved_blocks(sbi
, inode
, true))
1655 avail_user_block_count
-= F2FS_OPTION(sbi
).root_reserved_blocks
;
1657 if (unlikely(sbi
->total_valid_block_count
> avail_user_block_count
)) {
1658 diff
= sbi
->total_valid_block_count
- avail_user_block_count
;
1663 sbi
->total_valid_block_count
-= diff
;
1665 spin_unlock(&sbi
->stat_lock
);
1666 percpu_counter_sub(&sbi
->alloc_valid_block_count
, diff
);
1670 spin_unlock(&sbi
->stat_lock
);
1672 if (unlikely(release
))
1673 dquot_release_reservation_block(inode
, release
);
1674 f2fs_i_blocks_write(inode
, *count
, true, true);
1678 dquot_release_reservation_block(inode
, release
);
1682 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1683 struct inode
*inode
,
1686 blkcnt_t sectors
= count
<< F2FS_LOG_SECTORS_PER_BLOCK
;
1688 spin_lock(&sbi
->stat_lock
);
1689 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1690 f2fs_bug_on(sbi
, inode
->i_blocks
< sectors
);
1691 sbi
->total_valid_block_count
-= (block_t
)count
;
1692 if (sbi
->reserved_blocks
&&
1693 sbi
->current_reserved_blocks
< sbi
->reserved_blocks
)
1694 sbi
->current_reserved_blocks
= min(sbi
->reserved_blocks
,
1695 sbi
->current_reserved_blocks
+ count
);
1696 spin_unlock(&sbi
->stat_lock
);
1697 f2fs_i_blocks_write(inode
, count
, false, true);
1700 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1702 atomic_inc(&sbi
->nr_pages
[count_type
]);
1704 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1705 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1708 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1711 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1713 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1714 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1715 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1716 if (IS_NOQUOTA(inode
))
1717 inc_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_QDATA
);
1720 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1722 atomic_dec(&sbi
->nr_pages
[count_type
]);
1725 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1727 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1728 !S_ISLNK(inode
->i_mode
))
1731 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1732 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1733 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1734 if (IS_NOQUOTA(inode
))
1735 dec_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_QDATA
);
1738 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1740 return atomic_read(&sbi
->nr_pages
[count_type
]);
1743 static inline int get_dirty_pages(struct inode
*inode
)
1745 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1748 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1750 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1751 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1752 sbi
->log_blocks_per_seg
;
1754 return segs
/ sbi
->segs_per_sec
;
1757 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1759 return sbi
->total_valid_block_count
;
1762 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1764 return sbi
->discard_blks
;
1767 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1769 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1771 /* return NAT or SIT bitmap */
1772 if (flag
== NAT_BITMAP
)
1773 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1774 else if (flag
== SIT_BITMAP
)
1775 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1780 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1782 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1785 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1787 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1790 if (is_set_ckpt_flags(sbi
, CP_LARGE_NAT_BITMAP_FLAG
)) {
1791 offset
= (flag
== SIT_BITMAP
) ?
1792 le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
) : 0;
1793 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1796 if (__cp_payload(sbi
) > 0) {
1797 if (flag
== NAT_BITMAP
)
1798 return &ckpt
->sit_nat_version_bitmap
;
1800 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1802 offset
= (flag
== NAT_BITMAP
) ?
1803 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1804 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1808 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1810 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1812 if (sbi
->cur_cp_pack
== 2)
1813 start_addr
+= sbi
->blocks_per_seg
;
1817 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1819 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1821 if (sbi
->cur_cp_pack
== 1)
1822 start_addr
+= sbi
->blocks_per_seg
;
1826 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1828 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1831 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1833 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1836 static inline int inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1837 struct inode
*inode
, bool is_inode
)
1839 block_t valid_block_count
;
1840 unsigned int valid_node_count
;
1841 bool quota
= inode
&& !is_inode
;
1844 int ret
= dquot_reserve_block(inode
, 1);
1849 #ifdef CONFIG_F2FS_FAULT_INJECTION
1850 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1851 f2fs_show_injection_info(FAULT_BLOCK
);
1856 spin_lock(&sbi
->stat_lock
);
1858 valid_block_count
= sbi
->total_valid_block_count
+
1859 sbi
->current_reserved_blocks
+ 1;
1861 if (!__allow_reserved_blocks(sbi
, inode
, false))
1862 valid_block_count
+= F2FS_OPTION(sbi
).root_reserved_blocks
;
1864 if (unlikely(valid_block_count
> sbi
->user_block_count
)) {
1865 spin_unlock(&sbi
->stat_lock
);
1869 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1870 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1871 spin_unlock(&sbi
->stat_lock
);
1875 sbi
->total_valid_node_count
++;
1876 sbi
->total_valid_block_count
++;
1877 spin_unlock(&sbi
->stat_lock
);
1881 f2fs_mark_inode_dirty_sync(inode
, true);
1883 f2fs_i_blocks_write(inode
, 1, true, true);
1886 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1891 dquot_release_reservation_block(inode
, 1);
1895 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1896 struct inode
*inode
, bool is_inode
)
1898 spin_lock(&sbi
->stat_lock
);
1900 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1901 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1902 f2fs_bug_on(sbi
, !is_inode
&& !inode
->i_blocks
);
1904 sbi
->total_valid_node_count
--;
1905 sbi
->total_valid_block_count
--;
1906 if (sbi
->reserved_blocks
&&
1907 sbi
->current_reserved_blocks
< sbi
->reserved_blocks
)
1908 sbi
->current_reserved_blocks
++;
1910 spin_unlock(&sbi
->stat_lock
);
1913 f2fs_i_blocks_write(inode
, 1, false, true);
1916 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1918 return sbi
->total_valid_node_count
;
1921 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1923 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1926 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1928 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1931 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1933 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1936 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1937 pgoff_t index
, bool for_write
)
1939 #ifdef CONFIG_F2FS_FAULT_INJECTION
1943 page
= find_get_page_flags(mapping
, index
,
1944 FGP_LOCK
| FGP_ACCESSED
);
1946 page
= find_lock_page(mapping
, index
);
1950 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
)) {
1951 f2fs_show_injection_info(FAULT_PAGE_ALLOC
);
1956 return grab_cache_page(mapping
, index
);
1957 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1960 static inline struct page
*f2fs_pagecache_get_page(
1961 struct address_space
*mapping
, pgoff_t index
,
1962 int fgp_flags
, gfp_t gfp_mask
)
1964 #ifdef CONFIG_F2FS_FAULT_INJECTION
1965 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_GET
)) {
1966 f2fs_show_injection_info(FAULT_PAGE_GET
);
1970 return pagecache_get_page(mapping
, index
, fgp_flags
, gfp_mask
);
1973 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1975 char *src_kaddr
= kmap(src
);
1976 char *dst_kaddr
= kmap(dst
);
1978 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1983 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1989 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1995 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1998 f2fs_put_page(dn
->node_page
, 1);
1999 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
2000 f2fs_put_page(dn
->inode_page
, 0);
2001 dn
->node_page
= NULL
;
2002 dn
->inode_page
= NULL
;
2005 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
2008 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
2011 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
2016 entry
= kmem_cache_alloc(cachep
, flags
);
2018 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
2022 static inline struct bio
*f2fs_bio_alloc(struct f2fs_sb_info
*sbi
,
2023 int npages
, bool no_fail
)
2028 /* No failure on bio allocation */
2029 bio
= bio_alloc(GFP_NOIO
, npages
);
2031 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
2034 #ifdef CONFIG_F2FS_FAULT_INJECTION
2035 if (time_to_inject(sbi
, FAULT_ALLOC_BIO
)) {
2036 f2fs_show_injection_info(FAULT_ALLOC_BIO
);
2040 return bio_alloc(GFP_KERNEL
, npages
);
2043 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
2044 unsigned long index
, void *item
)
2046 while (radix_tree_insert(root
, index
, item
))
2050 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
2052 static inline bool IS_INODE(struct page
*page
)
2054 struct f2fs_node
*p
= F2FS_NODE(page
);
2056 return RAW_IS_INODE(p
);
2059 static inline int offset_in_addr(struct f2fs_inode
*i
)
2061 return (i
->i_inline
& F2FS_EXTRA_ATTR
) ?
2062 (le16_to_cpu(i
->i_extra_isize
) / sizeof(__le32
)) : 0;
2065 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
2067 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
2070 static inline int f2fs_has_extra_attr(struct inode
*inode
);
2071 static inline block_t
datablock_addr(struct inode
*inode
,
2072 struct page
*node_page
, unsigned int offset
)
2074 struct f2fs_node
*raw_node
;
2077 bool is_inode
= IS_INODE(node_page
);
2079 raw_node
= F2FS_NODE(node_page
);
2081 /* from GC path only */
2084 base
= offset_in_addr(&raw_node
->i
);
2085 else if (f2fs_has_extra_attr(inode
))
2086 base
= get_extra_isize(inode
);
2089 addr_array
= blkaddr_in_node(raw_node
);
2090 return le32_to_cpu(addr_array
[base
+ offset
]);
2093 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
2098 mask
= 1 << (7 - (nr
& 0x07));
2099 return mask
& *addr
;
2102 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
2107 mask
= 1 << (7 - (nr
& 0x07));
2111 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
2116 mask
= 1 << (7 - (nr
& 0x07));
2120 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
2126 mask
= 1 << (7 - (nr
& 0x07));
2132 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
2138 mask
= 1 << (7 - (nr
& 0x07));
2144 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
2149 mask
= 1 << (7 - (nr
& 0x07));
2153 #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
2154 #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
2155 #define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
2157 static inline __u32
f2fs_mask_flags(umode_t mode
, __u32 flags
)
2161 else if (S_ISREG(mode
))
2162 return flags
& F2FS_REG_FLMASK
;
2164 return flags
& F2FS_OTHER_FLMASK
;
2167 /* used for f2fs_inode_info->flags */
2169 FI_NEW_INODE
, /* indicate newly allocated inode */
2170 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
2171 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
2172 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
2173 FI_INC_LINK
, /* need to increment i_nlink */
2174 FI_ACL_MODE
, /* indicate acl mode */
2175 FI_NO_ALLOC
, /* should not allocate any blocks */
2176 FI_FREE_NID
, /* free allocated nide */
2177 FI_NO_EXTENT
, /* not to use the extent cache */
2178 FI_INLINE_XATTR
, /* used for inline xattr */
2179 FI_INLINE_DATA
, /* used for inline data*/
2180 FI_INLINE_DENTRY
, /* used for inline dentry */
2181 FI_APPEND_WRITE
, /* inode has appended data */
2182 FI_UPDATE_WRITE
, /* inode has in-place-update data */
2183 FI_NEED_IPU
, /* used for ipu per file */
2184 FI_ATOMIC_FILE
, /* indicate atomic file */
2185 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
2186 FI_VOLATILE_FILE
, /* indicate volatile file */
2187 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
2188 FI_DROP_CACHE
, /* drop dirty page cache */
2189 FI_DATA_EXIST
, /* indicate data exists */
2190 FI_INLINE_DOTS
, /* indicate inline dot dentries */
2191 FI_DO_DEFRAG
, /* indicate defragment is running */
2192 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
2193 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
2194 FI_HOT_DATA
, /* indicate file is hot */
2195 FI_EXTRA_ATTR
, /* indicate file has extra attribute */
2196 FI_PROJ_INHERIT
, /* indicate file inherits projectid */
2197 FI_PIN_FILE
, /* indicate file should not be gced */
2200 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
2204 case FI_INLINE_XATTR
:
2205 case FI_INLINE_DATA
:
2206 case FI_INLINE_DENTRY
:
2211 case FI_INLINE_DOTS
:
2213 f2fs_mark_inode_dirty_sync(inode
, true);
2217 static inline void set_inode_flag(struct inode
*inode
, int flag
)
2219 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
2220 set_bit(flag
, &F2FS_I(inode
)->flags
);
2221 __mark_inode_dirty_flag(inode
, flag
, true);
2224 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
2226 return test_bit(flag
, &F2FS_I(inode
)->flags
);
2229 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
2231 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
2232 clear_bit(flag
, &F2FS_I(inode
)->flags
);
2233 __mark_inode_dirty_flag(inode
, flag
, false);
2236 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
2238 F2FS_I(inode
)->i_acl_mode
= mode
;
2239 set_inode_flag(inode
, FI_ACL_MODE
);
2240 f2fs_mark_inode_dirty_sync(inode
, false);
2243 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
2249 f2fs_mark_inode_dirty_sync(inode
, true);
2252 static inline void f2fs_i_blocks_write(struct inode
*inode
,
2253 block_t diff
, bool add
, bool claim
)
2255 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2256 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2258 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2261 dquot_claim_block(inode
, diff
);
2263 dquot_alloc_block_nofail(inode
, diff
);
2265 dquot_free_block(inode
, diff
);
2268 f2fs_mark_inode_dirty_sync(inode
, true);
2269 if (clean
|| recover
)
2270 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2273 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
2275 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2276 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2278 if (i_size_read(inode
) == i_size
)
2281 i_size_write(inode
, i_size
);
2282 f2fs_mark_inode_dirty_sync(inode
, true);
2283 if (clean
|| recover
)
2284 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2287 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
2289 F2FS_I(inode
)->i_current_depth
= depth
;
2290 f2fs_mark_inode_dirty_sync(inode
, true);
2293 static inline void f2fs_i_gc_failures_write(struct inode
*inode
,
2296 F2FS_I(inode
)->i_gc_failures
= count
;
2297 f2fs_mark_inode_dirty_sync(inode
, true);
2300 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
2302 F2FS_I(inode
)->i_xattr_nid
= xnid
;
2303 f2fs_mark_inode_dirty_sync(inode
, true);
2306 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
2308 F2FS_I(inode
)->i_pino
= pino
;
2309 f2fs_mark_inode_dirty_sync(inode
, true);
2312 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
2314 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
2316 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
2317 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
2318 if (ri
->i_inline
& F2FS_INLINE_DATA
)
2319 set_bit(FI_INLINE_DATA
, &fi
->flags
);
2320 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
2321 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
2322 if (ri
->i_inline
& F2FS_DATA_EXIST
)
2323 set_bit(FI_DATA_EXIST
, &fi
->flags
);
2324 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
2325 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
2326 if (ri
->i_inline
& F2FS_EXTRA_ATTR
)
2327 set_bit(FI_EXTRA_ATTR
, &fi
->flags
);
2328 if (ri
->i_inline
& F2FS_PIN_FILE
)
2329 set_bit(FI_PIN_FILE
, &fi
->flags
);
2332 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
2336 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
2337 ri
->i_inline
|= F2FS_INLINE_XATTR
;
2338 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
2339 ri
->i_inline
|= F2FS_INLINE_DATA
;
2340 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
2341 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
2342 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
2343 ri
->i_inline
|= F2FS_DATA_EXIST
;
2344 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
2345 ri
->i_inline
|= F2FS_INLINE_DOTS
;
2346 if (is_inode_flag_set(inode
, FI_EXTRA_ATTR
))
2347 ri
->i_inline
|= F2FS_EXTRA_ATTR
;
2348 if (is_inode_flag_set(inode
, FI_PIN_FILE
))
2349 ri
->i_inline
|= F2FS_PIN_FILE
;
2352 static inline int f2fs_has_extra_attr(struct inode
*inode
)
2354 return is_inode_flag_set(inode
, FI_EXTRA_ATTR
);
2357 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
2359 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
2362 static inline unsigned int addrs_per_inode(struct inode
*inode
)
2364 return CUR_ADDRS_PER_INODE(inode
) - get_inline_xattr_addrs(inode
);
2367 static inline void *inline_xattr_addr(struct inode
*inode
, struct page
*page
)
2369 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2371 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
2372 get_inline_xattr_addrs(inode
)]);
2375 static inline int inline_xattr_size(struct inode
*inode
)
2377 return get_inline_xattr_addrs(inode
) * sizeof(__le32
);
2380 static inline int f2fs_has_inline_data(struct inode
*inode
)
2382 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
2385 static inline int f2fs_exist_data(struct inode
*inode
)
2387 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
2390 static inline int f2fs_has_inline_dots(struct inode
*inode
)
2392 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
2395 static inline bool f2fs_is_pinned_file(struct inode
*inode
)
2397 return is_inode_flag_set(inode
, FI_PIN_FILE
);
2400 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
2402 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
2405 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
2407 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
2410 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
2412 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
2415 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
2417 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
2420 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
2422 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
2425 static inline void *inline_data_addr(struct inode
*inode
, struct page
*page
)
2427 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2428 int extra_size
= get_extra_isize(inode
);
2430 return (void *)&(ri
->i_addr
[extra_size
+ DEF_INLINE_RESERVED_SIZE
]);
2433 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
2435 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
2438 static inline int is_file(struct inode
*inode
, int type
)
2440 return F2FS_I(inode
)->i_advise
& type
;
2443 static inline void set_file(struct inode
*inode
, int type
)
2445 F2FS_I(inode
)->i_advise
|= type
;
2446 f2fs_mark_inode_dirty_sync(inode
, true);
2449 static inline void clear_file(struct inode
*inode
, int type
)
2451 F2FS_I(inode
)->i_advise
&= ~type
;
2452 f2fs_mark_inode_dirty_sync(inode
, true);
2455 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
2460 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2462 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
2463 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
2464 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
2467 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
2468 file_keep_isize(inode
) ||
2469 i_size_read(inode
) & ~PAGE_MASK
)
2472 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
, &inode
->i_atime
))
2474 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
+ 1, &inode
->i_ctime
))
2476 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
+ 2, &inode
->i_mtime
))
2478 if (!timespec_equal(F2FS_I(inode
)->i_disk_time
+ 3,
2479 &F2FS_I(inode
)->i_crtime
))
2482 down_read(&F2FS_I(inode
)->i_sem
);
2483 ret
= F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
2484 up_read(&F2FS_I(inode
)->i_sem
);
2489 static inline bool f2fs_readonly(struct super_block
*sb
)
2491 return sb_rdonly(sb
);
2494 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
2496 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
2499 static inline bool is_dot_dotdot(const struct qstr
*str
)
2501 if (str
->len
== 1 && str
->name
[0] == '.')
2504 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
2510 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
2512 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2514 if (!test_opt(sbi
, EXTENT_CACHE
) ||
2515 is_inode_flag_set(inode
, FI_NO_EXTENT
))
2519 * for recovered files during mount do not create extents
2520 * if shrinker is not registered.
2522 if (list_empty(&sbi
->s_list
))
2525 return S_ISREG(inode
->i_mode
);
2528 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
2529 size_t size
, gfp_t flags
)
2531 #ifdef CONFIG_F2FS_FAULT_INJECTION
2532 if (time_to_inject(sbi
, FAULT_KMALLOC
)) {
2533 f2fs_show_injection_info(FAULT_KMALLOC
);
2537 return kmalloc(size
, flags
);
2540 static inline void *f2fs_kzalloc(struct f2fs_sb_info
*sbi
,
2541 size_t size
, gfp_t flags
)
2543 return f2fs_kmalloc(sbi
, size
, flags
| __GFP_ZERO
);
2546 static inline void *f2fs_kvmalloc(struct f2fs_sb_info
*sbi
,
2547 size_t size
, gfp_t flags
)
2549 #ifdef CONFIG_F2FS_FAULT_INJECTION
2550 if (time_to_inject(sbi
, FAULT_KVMALLOC
)) {
2551 f2fs_show_injection_info(FAULT_KVMALLOC
);
2555 return kvmalloc(size
, flags
);
2558 static inline void *f2fs_kvzalloc(struct f2fs_sb_info
*sbi
,
2559 size_t size
, gfp_t flags
)
2561 return f2fs_kvmalloc(sbi
, size
, flags
| __GFP_ZERO
);
2564 static inline int get_extra_isize(struct inode
*inode
)
2566 return F2FS_I(inode
)->i_extra_isize
/ sizeof(__le32
);
2569 static inline int get_inline_xattr_addrs(struct inode
*inode
)
2571 return F2FS_I(inode
)->i_inline_xattr_size
;
2574 #define get_inode_mode(i) \
2575 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2576 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2578 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2579 (offsetof(struct f2fs_inode, i_extra_end) - \
2580 offsetof(struct f2fs_inode, i_extra_isize)) \
2582 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2583 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2584 ((offsetof(typeof(*f2fs_inode), field) + \
2585 sizeof((f2fs_inode)->field)) \
2586 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2588 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2592 spin_lock(&sbi
->iostat_lock
);
2593 for (i
= 0; i
< NR_IO_TYPE
; i
++)
2594 sbi
->write_iostat
[i
] = 0;
2595 spin_unlock(&sbi
->iostat_lock
);
2598 static inline void f2fs_update_iostat(struct f2fs_sb_info
*sbi
,
2599 enum iostat_type type
, unsigned long long io_bytes
)
2601 if (!sbi
->iostat_enable
)
2603 spin_lock(&sbi
->iostat_lock
);
2604 sbi
->write_iostat
[type
] += io_bytes
;
2606 if (type
== APP_WRITE_IO
|| type
== APP_DIRECT_IO
)
2607 sbi
->write_iostat
[APP_BUFFERED_IO
] =
2608 sbi
->write_iostat
[APP_WRITE_IO
] -
2609 sbi
->write_iostat
[APP_DIRECT_IO
];
2610 spin_unlock(&sbi
->iostat_lock
);
2613 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO(fio->type) == META && \
2614 (!is_read_io(fio->op) || fio->is_meta))
2616 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info
*sbi
,
2617 block_t blkaddr
, int type
);
2618 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2619 static inline void verify_blkaddr(struct f2fs_sb_info
*sbi
,
2620 block_t blkaddr
, int type
)
2622 if (!f2fs_is_valid_blkaddr(sbi
, blkaddr
, type
)) {
2623 f2fs_msg(sbi
->sb
, KERN_ERR
,
2624 "invalid blkaddr: %u, type: %d, run fsck to fix.",
2626 f2fs_bug_on(sbi
, 1);
2630 static inline bool __is_valid_data_blkaddr(block_t blkaddr
)
2632 if (blkaddr
== NEW_ADDR
|| blkaddr
== NULL_ADDR
)
2637 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info
*sbi
,
2640 if (!__is_valid_data_blkaddr(blkaddr
))
2642 verify_blkaddr(sbi
, blkaddr
, DATA_GENERIC
);
2649 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2650 void truncate_data_blocks(struct dnode_of_data
*dn
);
2651 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2652 int f2fs_truncate(struct inode
*inode
);
2653 int f2fs_getattr(const struct path
*path
, struct kstat
*stat
,
2654 u32 request_mask
, unsigned int flags
);
2655 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2656 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2657 void truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2658 int f2fs_precache_extents(struct inode
*inode
);
2659 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2660 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2661 int f2fs_pin_file_control(struct inode
*inode
, bool inc
);
2666 void f2fs_set_inode_flags(struct inode
*inode
);
2667 bool f2fs_inode_chksum_verify(struct f2fs_sb_info
*sbi
, struct page
*page
);
2668 void f2fs_inode_chksum_set(struct f2fs_sb_info
*sbi
, struct page
*page
);
2669 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2670 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2671 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2672 void update_inode(struct inode
*inode
, struct page
*node_page
);
2673 void update_inode_page(struct inode
*inode
);
2674 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2675 void f2fs_evict_inode(struct inode
*inode
);
2676 void handle_failed_inode(struct inode
*inode
);
2681 int update_extension_list(struct f2fs_sb_info
*sbi
, const char *name
,
2682 bool hot
, bool set
);
2683 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2688 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2689 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2690 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2691 f2fs_hash_t namehash
, int *max_slots
,
2692 struct f2fs_dentry_ptr
*d
);
2693 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2694 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2695 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2696 struct f2fs_dentry_ptr
*d
);
2697 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2698 const struct qstr
*new_name
,
2699 const struct qstr
*orig_name
, struct page
*dpage
);
2700 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2701 unsigned int current_depth
);
2702 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2703 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2704 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2705 struct fscrypt_name
*fname
, struct page
**res_page
);
2706 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2707 const struct qstr
*child
, struct page
**res_page
);
2708 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2709 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2710 struct page
**page
);
2711 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2712 struct page
*page
, struct inode
*inode
);
2713 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2714 const struct qstr
*name
, f2fs_hash_t name_hash
,
2715 unsigned int bit_pos
);
2716 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2717 const struct qstr
*orig_name
,
2718 struct inode
*inode
, nid_t ino
, umode_t mode
);
2719 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2720 struct inode
*inode
, nid_t ino
, umode_t mode
);
2721 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2722 struct inode
*inode
, nid_t ino
, umode_t mode
);
2723 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2724 struct inode
*dir
, struct inode
*inode
);
2725 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2726 bool f2fs_empty_dir(struct inode
*dir
);
2728 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2730 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2731 inode
, inode
->i_ino
, inode
->i_mode
);
2737 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2738 void f2fs_inode_synced(struct inode
*inode
);
2739 int f2fs_enable_quota_files(struct f2fs_sb_info
*sbi
, bool rdonly
);
2740 void f2fs_quota_off_umount(struct super_block
*sb
);
2741 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2742 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2743 extern __printf(3, 4)
2744 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2745 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2750 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
,
2751 struct fscrypt_name
*fname
);
2756 struct dnode_of_data
;
2759 int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
);
2760 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2761 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2762 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2763 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2764 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2765 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2766 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2767 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2768 int truncate_xattr_node(struct inode
*inode
);
2769 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2770 int remove_inode_page(struct inode
*inode
);
2771 struct page
*new_inode_page(struct inode
*inode
);
2772 struct page
*new_node_page(struct dnode_of_data
*dn
, unsigned int ofs
);
2773 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2774 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2775 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2776 void move_node_page(struct page
*node_page
, int gc_type
);
2777 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2778 struct writeback_control
*wbc
, bool atomic
);
2779 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
,
2780 bool do_balance
, enum iostat_type io_type
);
2781 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
, bool mount
);
2782 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2783 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2784 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2785 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2786 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2787 int recover_xattr_data(struct inode
*inode
, struct page
*page
);
2788 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2789 void restore_node_summary(struct f2fs_sb_info
*sbi
,
2790 unsigned int segno
, struct f2fs_summary_block
*sum
);
2791 void flush_nat_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2792 int build_node_manager(struct f2fs_sb_info
*sbi
);
2793 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2794 int __init
create_node_manager_caches(void);
2795 void destroy_node_manager_caches(void);
2800 bool need_SSR(struct f2fs_sb_info
*sbi
);
2801 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2802 void drop_inmem_pages_all(struct f2fs_sb_info
*sbi
);
2803 void drop_inmem_pages(struct inode
*inode
);
2804 void drop_inmem_page(struct inode
*inode
, struct page
*page
);
2805 int commit_inmem_pages(struct inode
*inode
);
2806 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2807 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2808 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
, nid_t ino
);
2809 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2810 int f2fs_flush_device_cache(struct f2fs_sb_info
*sbi
);
2811 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2812 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2813 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2814 void drop_discard_cmd(struct f2fs_sb_info
*sbi
);
2815 void stop_discard_thread(struct f2fs_sb_info
*sbi
);
2816 bool f2fs_wait_discard_bios(struct f2fs_sb_info
*sbi
);
2817 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2818 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2819 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2820 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2821 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2822 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2823 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2824 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2825 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
,
2826 enum iostat_type io_type
);
2827 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2828 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2829 int rewrite_data_page(struct f2fs_io_info
*fio
);
2830 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2831 block_t old_blkaddr
, block_t new_blkaddr
,
2832 bool recover_curseg
, bool recover_newaddr
);
2833 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2834 block_t old_addr
, block_t new_addr
,
2835 unsigned char version
, bool recover_curseg
,
2836 bool recover_newaddr
);
2837 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2838 block_t old_blkaddr
, block_t
*new_blkaddr
,
2839 struct f2fs_summary
*sum
, int type
,
2840 struct f2fs_io_info
*fio
, bool add_list
);
2841 void f2fs_wait_on_page_writeback(struct page
*page
,
2842 enum page_type type
, bool ordered
);
2843 void f2fs_wait_on_block_writeback(struct inode
*inode
, block_t blkaddr
);
2844 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2845 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2846 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2847 unsigned int val
, int alloc
);
2848 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2849 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2850 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2851 int __init
create_segment_manager_caches(void);
2852 void destroy_segment_manager_caches(void);
2853 int rw_hint_to_seg_type(enum rw_hint hint
);
2854 enum rw_hint
io_type_to_rw_hint(struct f2fs_sb_info
*sbi
, enum page_type type
,
2855 enum temp_type temp
);
2860 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2861 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2862 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2863 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2864 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info
*sbi
,
2865 block_t blkaddr
, int type
);
2866 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2867 int type
, bool sync
);
2868 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2869 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2870 long nr_to_write
, enum iostat_type io_type
);
2871 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2872 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2873 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2874 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2875 void set_dirty_device(struct f2fs_sb_info
*sbi
, nid_t ino
,
2876 unsigned int devidx
, int type
);
2877 bool is_dirty_device(struct f2fs_sb_info
*sbi
, nid_t ino
,
2878 unsigned int devidx
, int type
);
2879 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2880 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2881 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2882 void add_orphan_inode(struct inode
*inode
);
2883 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2884 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2885 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2886 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2887 void remove_dirty_inode(struct inode
*inode
);
2888 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2889 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2890 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2891 int __init
create_checkpoint_caches(void);
2892 void destroy_checkpoint_caches(void);
2897 int f2fs_init_post_read_processing(void);
2898 void f2fs_destroy_post_read_processing(void);
2899 void f2fs_submit_merged_write(struct f2fs_sb_info
*sbi
, enum page_type type
);
2900 void f2fs_submit_merged_write_cond(struct f2fs_sb_info
*sbi
,
2901 struct inode
*inode
, nid_t ino
, pgoff_t idx
,
2902 enum page_type type
);
2903 void f2fs_flush_merged_writes(struct f2fs_sb_info
*sbi
);
2904 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2905 int f2fs_submit_page_write(struct f2fs_io_info
*fio
);
2906 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2907 block_t blk_addr
, struct bio
*bio
);
2908 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2909 void set_data_blkaddr(struct dnode_of_data
*dn
);
2910 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2911 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2912 int reserve_new_block(struct dnode_of_data
*dn
);
2913 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2914 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2915 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2916 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2917 int op_flags
, bool for_write
);
2918 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2919 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2921 struct page
*get_new_data_page(struct inode
*inode
,
2922 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2923 int do_write_data_page(struct f2fs_io_info
*fio
);
2924 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2925 int create
, int flag
);
2926 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2927 u64 start
, u64 len
);
2928 bool should_update_inplace(struct inode
*inode
, struct f2fs_io_info
*fio
);
2929 bool should_update_outplace(struct inode
*inode
, struct f2fs_io_info
*fio
);
2930 int __f2fs_write_data_pages(struct address_space
*mapping
,
2931 struct writeback_control
*wbc
,
2932 enum iostat_type io_type
);
2933 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2934 unsigned int length
);
2935 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2936 #ifdef CONFIG_MIGRATION
2937 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2938 struct page
*page
, enum migrate_mode mode
);
2940 bool f2fs_overwrite_io(struct inode
*inode
, loff_t pos
, size_t len
);
2945 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2946 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2947 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2948 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
,
2949 unsigned int segno
);
2950 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2955 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2956 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2961 #ifdef CONFIG_F2FS_STAT_FS
2962 struct f2fs_stat_info
{
2963 struct list_head stat_list
;
2964 struct f2fs_sb_info
*sbi
;
2965 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2966 int main_area_segs
, main_area_sections
, main_area_zones
;
2967 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2968 unsigned long long hit_total
, total_ext
;
2969 int ext_tree
, zombie_tree
, ext_node
;
2970 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_imeta
;
2971 int ndirty_data
, ndirty_qdata
;
2973 unsigned int ndirty_dirs
, ndirty_files
, nquota_files
, ndirty_all
;
2974 int nats
, dirty_nats
, sits
, dirty_sits
;
2975 int free_nids
, avail_nids
, alloc_nids
;
2976 int total_count
, utilization
;
2977 int bg_gc
, nr_wb_cp_data
, nr_wb_data
;
2978 int nr_flushing
, nr_flushed
, flush_list_empty
;
2979 int nr_discarding
, nr_discarded
;
2981 unsigned int undiscard_blks
;
2982 int inline_xattr
, inline_inode
, inline_dir
, append
, update
, orphans
;
2983 int aw_cnt
, max_aw_cnt
, vw_cnt
, max_vw_cnt
;
2984 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2985 unsigned int bimodal
, avg_vblocks
;
2986 int util_free
, util_valid
, util_invalid
;
2987 int rsvd_segs
, overp_segs
;
2988 int dirty_count
, node_pages
, meta_pages
;
2989 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2990 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2991 int bg_node_segs
, bg_data_segs
;
2992 int tot_blks
, data_blks
, node_blks
;
2993 int bg_data_blks
, bg_node_blks
;
2994 int curseg
[NR_CURSEG_TYPE
];
2995 int cursec
[NR_CURSEG_TYPE
];
2996 int curzone
[NR_CURSEG_TYPE
];
2998 unsigned int segment_count
[2];
2999 unsigned int block_count
[2];
3000 unsigned int inplace_count
;
3001 unsigned long long base_mem
, cache_mem
, page_mem
;
3004 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
3006 return (struct f2fs_stat_info
*)sbi
->stat_info
;
3009 #define stat_inc_cp_count(si) ((si)->cp_count++)
3010 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
3011 #define stat_inc_call_count(si) ((si)->call_count++)
3012 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
3013 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
3014 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
3015 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
3016 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
3017 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
3018 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
3019 #define stat_inc_inline_xattr(inode) \
3021 if (f2fs_has_inline_xattr(inode)) \
3022 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
3024 #define stat_dec_inline_xattr(inode) \
3026 if (f2fs_has_inline_xattr(inode)) \
3027 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
3029 #define stat_inc_inline_inode(inode) \
3031 if (f2fs_has_inline_data(inode)) \
3032 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
3034 #define stat_dec_inline_inode(inode) \
3036 if (f2fs_has_inline_data(inode)) \
3037 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
3039 #define stat_inc_inline_dir(inode) \
3041 if (f2fs_has_inline_dentry(inode)) \
3042 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
3044 #define stat_dec_inline_dir(inode) \
3046 if (f2fs_has_inline_dentry(inode)) \
3047 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
3049 #define stat_inc_seg_type(sbi, curseg) \
3050 ((sbi)->segment_count[(curseg)->alloc_type]++)
3051 #define stat_inc_block_count(sbi, curseg) \
3052 ((sbi)->block_count[(curseg)->alloc_type]++)
3053 #define stat_inc_inplace_blocks(sbi) \
3054 (atomic_inc(&(sbi)->inplace_count))
3055 #define stat_inc_atomic_write(inode) \
3056 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
3057 #define stat_dec_atomic_write(inode) \
3058 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
3059 #define stat_update_max_atomic_write(inode) \
3061 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
3062 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
3064 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
3066 #define stat_inc_volatile_write(inode) \
3067 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
3068 #define stat_dec_volatile_write(inode) \
3069 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
3070 #define stat_update_max_volatile_write(inode) \
3072 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
3073 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
3075 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
3077 #define stat_inc_seg_count(sbi, type, gc_type) \
3079 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3081 if ((type) == SUM_TYPE_DATA) { \
3083 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
3086 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
3090 #define stat_inc_tot_blk_count(si, blks) \
3091 ((si)->tot_blks += (blks))
3093 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
3095 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3096 stat_inc_tot_blk_count(si, blks); \
3097 si->data_blks += (blks); \
3098 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3101 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
3103 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
3104 stat_inc_tot_blk_count(si, blks); \
3105 si->node_blks += (blks); \
3106 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
3109 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
3110 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
3111 int __init
f2fs_create_root_stats(void);
3112 void f2fs_destroy_root_stats(void);
3114 #define stat_inc_cp_count(si) do { } while (0)
3115 #define stat_inc_bg_cp_count(si) do { } while (0)
3116 #define stat_inc_call_count(si) do { } while (0)
3117 #define stat_inc_bggc_count(si) do { } while (0)
3118 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
3119 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
3120 #define stat_inc_total_hit(sb) do { } while (0)
3121 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
3122 #define stat_inc_largest_node_hit(sbi) do { } while (0)
3123 #define stat_inc_cached_node_hit(sbi) do { } while (0)
3124 #define stat_inc_inline_xattr(inode) do { } while (0)
3125 #define stat_dec_inline_xattr(inode) do { } while (0)
3126 #define stat_inc_inline_inode(inode) do { } while (0)
3127 #define stat_dec_inline_inode(inode) do { } while (0)
3128 #define stat_inc_inline_dir(inode) do { } while (0)
3129 #define stat_dec_inline_dir(inode) do { } while (0)
3130 #define stat_inc_atomic_write(inode) do { } while (0)
3131 #define stat_dec_atomic_write(inode) do { } while (0)
3132 #define stat_update_max_atomic_write(inode) do { } while (0)
3133 #define stat_inc_volatile_write(inode) do { } while (0)
3134 #define stat_dec_volatile_write(inode) do { } while (0)
3135 #define stat_update_max_volatile_write(inode) do { } while (0)
3136 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
3137 #define stat_inc_block_count(sbi, curseg) do { } while (0)
3138 #define stat_inc_inplace_blocks(sbi) do { } while (0)
3139 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
3140 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
3141 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
3142 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
3144 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
3145 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
3146 static inline int __init
f2fs_create_root_stats(void) { return 0; }
3147 static inline void f2fs_destroy_root_stats(void) { }
3150 extern const struct file_operations f2fs_dir_operations
;
3151 extern const struct file_operations f2fs_file_operations
;
3152 extern const struct inode_operations f2fs_file_inode_operations
;
3153 extern const struct address_space_operations f2fs_dblock_aops
;
3154 extern const struct address_space_operations f2fs_node_aops
;
3155 extern const struct address_space_operations f2fs_meta_aops
;
3156 extern const struct inode_operations f2fs_dir_inode_operations
;
3157 extern const struct inode_operations f2fs_symlink_inode_operations
;
3158 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
3159 extern const struct inode_operations f2fs_special_inode_operations
;
3160 extern struct kmem_cache
*inode_entry_slab
;
3165 bool f2fs_may_inline_data(struct inode
*inode
);
3166 bool f2fs_may_inline_dentry(struct inode
*inode
);
3167 void read_inline_data(struct page
*page
, struct page
*ipage
);
3168 void truncate_inline_inode(struct inode
*inode
, struct page
*ipage
, u64 from
);
3169 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
3170 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
3171 int f2fs_convert_inline_inode(struct inode
*inode
);
3172 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
3173 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
3174 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
3175 struct fscrypt_name
*fname
, struct page
**res_page
);
3176 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
3177 struct page
*ipage
);
3178 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
3179 const struct qstr
*orig_name
,
3180 struct inode
*inode
, nid_t ino
, umode_t mode
);
3181 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
3182 struct inode
*dir
, struct inode
*inode
);
3183 bool f2fs_empty_inline_dir(struct inode
*dir
);
3184 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
3185 struct fscrypt_str
*fstr
);
3186 int f2fs_inline_data_fiemap(struct inode
*inode
,
3187 struct fiemap_extent_info
*fieinfo
,
3188 __u64 start
, __u64 len
);
3193 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
3194 struct shrink_control
*sc
);
3195 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
3196 struct shrink_control
*sc
);
3197 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
3198 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
3203 struct rb_entry
*__lookup_rb_tree(struct rb_root
*root
,
3204 struct rb_entry
*cached_re
, unsigned int ofs
);
3205 struct rb_node
**__lookup_rb_tree_for_insert(struct f2fs_sb_info
*sbi
,
3206 struct rb_root
*root
, struct rb_node
**parent
,
3208 struct rb_entry
*__lookup_rb_tree_ret(struct rb_root
*root
,
3209 struct rb_entry
*cached_re
, unsigned int ofs
,
3210 struct rb_entry
**prev_entry
, struct rb_entry
**next_entry
,
3211 struct rb_node
***insert_p
, struct rb_node
**insert_parent
,
3213 bool __check_rb_tree_consistence(struct f2fs_sb_info
*sbi
,
3214 struct rb_root
*root
);
3215 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
3216 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
3217 void f2fs_drop_extent_tree(struct inode
*inode
);
3218 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
3219 void f2fs_destroy_extent_tree(struct inode
*inode
);
3220 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
3221 struct extent_info
*ei
);
3222 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
3223 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
3224 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
3225 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
3226 int __init
create_extent_cache(void);
3227 void destroy_extent_cache(void);
3232 int __init
f2fs_init_sysfs(void);
3233 void f2fs_exit_sysfs(void);
3234 int f2fs_register_sysfs(struct f2fs_sb_info
*sbi
);
3235 void f2fs_unregister_sysfs(struct f2fs_sb_info
*sbi
);
3240 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
3242 return file_is_encrypt(inode
);
3245 static inline bool f2fs_encrypted_file(struct inode
*inode
)
3247 return f2fs_encrypted_inode(inode
) && S_ISREG(inode
->i_mode
);
3250 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
3252 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3253 file_set_encrypt(inode
);
3254 inode
->i_flags
|= S_ENCRYPTED
;
3259 * Returns true if the reads of the inode's data need to undergo some
3260 * postprocessing step, like decryption or authenticity verification.
3262 static inline bool f2fs_post_read_required(struct inode
*inode
)
3264 return f2fs_encrypted_file(inode
);
3267 #define F2FS_FEATURE_FUNCS(name, flagname) \
3268 static inline int f2fs_sb_has_##name(struct super_block *sb) \
3270 return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_##flagname); \
3273 F2FS_FEATURE_FUNCS(encrypt
, ENCRYPT
);
3274 F2FS_FEATURE_FUNCS(blkzoned
, BLKZONED
);
3275 F2FS_FEATURE_FUNCS(extra_attr
, EXTRA_ATTR
);
3276 F2FS_FEATURE_FUNCS(project_quota
, PRJQUOTA
);
3277 F2FS_FEATURE_FUNCS(inode_chksum
, INODE_CHKSUM
);
3278 F2FS_FEATURE_FUNCS(flexible_inline_xattr
, FLEXIBLE_INLINE_XATTR
);
3279 F2FS_FEATURE_FUNCS(quota_ino
, QUOTA_INO
);
3280 F2FS_FEATURE_FUNCS(inode_crtime
, INODE_CRTIME
);
3281 F2FS_FEATURE_FUNCS(lost_found
, LOST_FOUND
);
3283 #ifdef CONFIG_BLK_DEV_ZONED
3284 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
3285 struct block_device
*bdev
, block_t blkaddr
)
3287 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
3290 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
3291 if (FDEV(i
).bdev
== bdev
)
3292 return FDEV(i
).blkz_type
[zno
];
3297 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
3299 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
3301 return blk_queue_discard(q
) || f2fs_sb_has_blkzoned(sbi
->sb
);
3304 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
3306 clear_opt(sbi
, ADAPTIVE
);
3307 clear_opt(sbi
, LFS
);
3310 case F2FS_MOUNT_ADAPTIVE
:
3311 set_opt(sbi
, ADAPTIVE
);
3313 case F2FS_MOUNT_LFS
:
3319 static inline bool f2fs_may_encrypt(struct inode
*inode
)
3321 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3322 umode_t mode
= inode
->i_mode
;
3324 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));
3330 static inline bool f2fs_force_buffered_io(struct inode
*inode
, int rw
)
3332 return ((f2fs_post_read_required(inode
) &&
3333 !fscrypt_disk_encrypted(inode
)) ||
3334 (rw
== WRITE
&& test_opt(F2FS_I_SB(inode
), LFS
)) ||
3335 F2FS_I_SB(inode
)->s_ndevs
);