4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
14 #include <linux/types.h>
15 #include <linux/page-flags.h>
16 #include <linux/buffer_head.h>
17 #include <linux/slab.h>
18 #include <linux/crc32.h>
19 #include <linux/magic.h>
20 #include <linux/kobject.h>
21 #include <linux/sched.h>
22 #include <linux/vmalloc.h>
23 #include <linux/bio.h>
24 #include <linux/blkdev.h>
25 #include <linux/quotaops.h>
26 #ifdef CONFIG_F2FS_FS_ENCRYPTION
27 #include <linux/fscrypt_supp.h>
29 #include <linux/fscrypt_notsupp.h>
31 #include <crypto/hash.h>
33 #ifdef CONFIG_F2FS_CHECK_FS
34 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
36 #define f2fs_bug_on(sbi, condition) \
38 if (unlikely(condition)) { \
40 set_sbi_flag(sbi, SBI_NEED_FSCK); \
45 #ifdef CONFIG_F2FS_FAULT_INJECTION
60 struct f2fs_fault_info
{
62 unsigned int inject_rate
;
63 unsigned int inject_type
;
66 extern char *fault_name
[FAULT_MAX
];
67 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
73 #define F2FS_MOUNT_BG_GC 0x00000001
74 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
75 #define F2FS_MOUNT_DISCARD 0x00000004
76 #define F2FS_MOUNT_NOHEAP 0x00000008
77 #define F2FS_MOUNT_XATTR_USER 0x00000010
78 #define F2FS_MOUNT_POSIX_ACL 0x00000020
79 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
80 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
81 #define F2FS_MOUNT_INLINE_DATA 0x00000100
82 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
83 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
84 #define F2FS_MOUNT_NOBARRIER 0x00000800
85 #define F2FS_MOUNT_FASTBOOT 0x00001000
86 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
87 #define F2FS_MOUNT_FORCE_FG_GC 0x00004000
88 #define F2FS_MOUNT_DATA_FLUSH 0x00008000
89 #define F2FS_MOUNT_FAULT_INJECTION 0x00010000
90 #define F2FS_MOUNT_ADAPTIVE 0x00020000
91 #define F2FS_MOUNT_LFS 0x00040000
92 #define F2FS_MOUNT_USRQUOTA 0x00080000
93 #define F2FS_MOUNT_GRPQUOTA 0x00100000
94 #define F2FS_MOUNT_PRJQUOTA 0x00200000
95 #define F2FS_MOUNT_QUOTA 0x00400000
97 #define clear_opt(sbi, option) ((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
98 #define set_opt(sbi, option) ((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
99 #define test_opt(sbi, option) ((sbi)->mount_opt.opt & F2FS_MOUNT_##option)
101 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
102 typecheck(unsigned long long, b) && \
103 ((long long)((a) - (b)) > 0))
105 typedef u32 block_t
; /*
106 * should not change u32, since it is the on-disk block
107 * address format, __le32.
111 struct f2fs_mount_info
{
115 #define F2FS_FEATURE_ENCRYPT 0x0001
116 #define F2FS_FEATURE_BLKZONED 0x0002
117 #define F2FS_FEATURE_ATOMIC_WRITE 0x0004
118 #define F2FS_FEATURE_EXTRA_ATTR 0x0008
119 #define F2FS_FEATURE_PRJQUOTA 0x0010
120 #define F2FS_FEATURE_INODE_CHKSUM 0x0020
122 #define F2FS_HAS_FEATURE(sb, mask) \
123 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
124 #define F2FS_SET_FEATURE(sb, mask) \
125 (F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask))
126 #define F2FS_CLEAR_FEATURE(sb, mask) \
127 (F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask))
130 * For checkpoint manager
137 #define CP_UMOUNT 0x00000001
138 #define CP_FASTBOOT 0x00000002
139 #define CP_SYNC 0x00000004
140 #define CP_RECOVERY 0x00000008
141 #define CP_DISCARD 0x00000010
142 #define CP_TRIMMED 0x00000020
144 #define DEF_BATCHED_TRIM_SECTIONS 2048
145 #define BATCHED_TRIM_SEGMENTS(sbi) \
146 (GET_SEG_FROM_SEC(sbi, SM_I(sbi)->trim_sections))
147 #define BATCHED_TRIM_BLOCKS(sbi) \
148 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
149 #define MAX_DISCARD_BLOCKS(sbi) BLKS_PER_SEC(sbi)
150 #define DISCARD_ISSUE_RATE 8
151 #define DEF_MIN_DISCARD_ISSUE_TIME 50 /* 50 ms, if exists */
152 #define DEF_MAX_DISCARD_ISSUE_TIME 60000 /* 60 s, if no candidates */
153 #define DEF_CP_INTERVAL 60 /* 60 secs */
154 #define DEF_IDLE_INTERVAL 5 /* 5 secs */
165 * indicate meta/data type
177 /* for the list of ino */
179 ORPHAN_INO
, /* for orphan ino list */
180 APPEND_INO
, /* for append ino list */
181 UPDATE_INO
, /* for update ino list */
182 MAX_INO_ENTRY
, /* max. list */
186 struct list_head list
; /* list head */
187 nid_t ino
; /* inode number */
190 /* for the list of inodes to be GCed */
192 struct list_head list
; /* list head */
193 struct inode
*inode
; /* vfs inode pointer */
196 /* for the bitmap indicate blocks to be discarded */
197 struct discard_entry
{
198 struct list_head list
; /* list head */
199 block_t start_blkaddr
; /* start blockaddr of current segment */
200 unsigned char discard_map
[SIT_VBLOCK_MAP_SIZE
]; /* segment discard bitmap */
203 /* default discard granularity of inner discard thread, unit: block count */
204 #define DEFAULT_DISCARD_GRANULARITY 16
206 /* max discard pend list number */
207 #define MAX_PLIST_NUM 512
208 #define plist_idx(blk_num) ((blk_num) >= MAX_PLIST_NUM ? \
209 (MAX_PLIST_NUM - 1) : (blk_num - 1))
211 #define P_ACTIVE 0x01
213 #define plist_issue(tag) (((tag) & P_ACTIVE) || ((tag) & P_TRIM))
221 struct discard_info
{
222 block_t lstart
; /* logical start address */
223 block_t len
; /* length */
224 block_t start
; /* actual start address in dev */
228 struct rb_node rb_node
; /* rb node located in rb-tree */
231 block_t lstart
; /* logical start address */
232 block_t len
; /* length */
233 block_t start
; /* actual start address in dev */
235 struct discard_info di
; /* discard info */
238 struct list_head list
; /* command list */
239 struct completion wait
; /* compleation */
240 struct block_device
*bdev
; /* bdev */
241 unsigned short ref
; /* reference count */
242 unsigned char state
; /* state */
243 int error
; /* bio error */
246 struct discard_cmd_control
{
247 struct task_struct
*f2fs_issue_discard
; /* discard thread */
248 struct list_head entry_list
; /* 4KB discard entry list */
249 struct list_head pend_list
[MAX_PLIST_NUM
];/* store pending entries */
250 unsigned char pend_list_tag
[MAX_PLIST_NUM
];/* tag for pending entries */
251 struct list_head wait_list
; /* store on-flushing entries */
252 wait_queue_head_t discard_wait_queue
; /* waiting queue for wake-up */
253 unsigned int discard_wake
; /* to wake up discard thread */
254 struct mutex cmd_lock
;
255 unsigned int nr_discards
; /* # of discards in the list */
256 unsigned int max_discards
; /* max. discards to be issued */
257 unsigned int discard_granularity
; /* discard granularity */
258 unsigned int undiscard_blks
; /* # of undiscard blocks */
259 atomic_t issued_discard
; /* # of issued discard */
260 atomic_t issing_discard
; /* # of issing discard */
261 atomic_t discard_cmd_cnt
; /* # of cached cmd count */
262 struct rb_root root
; /* root of discard rb-tree */
265 /* for the list of fsync inodes, used only during recovery */
266 struct fsync_inode_entry
{
267 struct list_head list
; /* list head */
268 struct inode
*inode
; /* vfs inode pointer */
269 block_t blkaddr
; /* block address locating the last fsync */
270 block_t last_dentry
; /* block address locating the last dentry */
273 #define nats_in_cursum(jnl) (le16_to_cpu((jnl)->n_nats))
274 #define sits_in_cursum(jnl) (le16_to_cpu((jnl)->n_sits))
276 #define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
277 #define nid_in_journal(jnl, i) ((jnl)->nat_j.entries[i].nid)
278 #define sit_in_journal(jnl, i) ((jnl)->sit_j.entries[i].se)
279 #define segno_in_journal(jnl, i) ((jnl)->sit_j.entries[i].segno)
281 #define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
282 #define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
284 static inline int update_nats_in_cursum(struct f2fs_journal
*journal
, int i
)
286 int before
= nats_in_cursum(journal
);
288 journal
->n_nats
= cpu_to_le16(before
+ i
);
292 static inline int update_sits_in_cursum(struct f2fs_journal
*journal
, int i
)
294 int before
= sits_in_cursum(journal
);
296 journal
->n_sits
= cpu_to_le16(before
+ i
);
300 static inline bool __has_cursum_space(struct f2fs_journal
*journal
,
303 if (type
== NAT_JOURNAL
)
304 return size
<= MAX_NAT_JENTRIES(journal
);
305 return size
<= MAX_SIT_JENTRIES(journal
);
311 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
312 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
313 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
315 #define F2FS_IOCTL_MAGIC 0xf5
316 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
317 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
318 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
319 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
320 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
321 #define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
322 #define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
323 #define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
324 struct f2fs_defragment)
325 #define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
326 struct f2fs_move_range)
327 #define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
328 struct f2fs_flush_device)
329 #define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
330 struct f2fs_gc_range)
331 #define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
333 #define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
334 #define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
335 #define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
338 * should be same as XFS_IOC_GOINGDOWN.
339 * Flags for going down operation used by FS_IOC_GOINGDOWN
341 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
342 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
343 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
344 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
345 #define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
347 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
349 * ioctl commands in 32 bit emulation
351 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
352 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
353 #define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
356 #define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
357 #define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
359 struct f2fs_gc_range
{
365 struct f2fs_defragment
{
370 struct f2fs_move_range
{
371 u32 dst_fd
; /* destination fd */
372 u64 pos_in
; /* start position in src_fd */
373 u64 pos_out
; /* start position in dst_fd */
374 u64 len
; /* size to move */
377 struct f2fs_flush_device
{
378 u32 dev_num
; /* device number to flush */
379 u32 segments
; /* # of segments to flush */
382 /* for inline stuff */
383 #define DEF_INLINE_RESERVED_SIZE 1
384 static inline int get_extra_isize(struct inode
*inode
);
385 #define MAX_INLINE_DATA(inode) (sizeof(__le32) * \
386 (CUR_ADDRS_PER_INODE(inode) - \
387 DEF_INLINE_RESERVED_SIZE - \
388 F2FS_INLINE_XATTR_ADDRS))
391 #define NR_INLINE_DENTRY(inode) (MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
392 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
394 #define INLINE_DENTRY_BITMAP_SIZE(inode) ((NR_INLINE_DENTRY(inode) + \
395 BITS_PER_BYTE - 1) / BITS_PER_BYTE)
396 #define INLINE_RESERVED_SIZE(inode) (MAX_INLINE_DATA(inode) - \
397 ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \
398 NR_INLINE_DENTRY(inode) + \
399 INLINE_DENTRY_BITMAP_SIZE(inode)))
402 * For INODE and NODE manager
404 /* for directory operations */
405 struct f2fs_dentry_ptr
{
408 struct f2fs_dir_entry
*dentry
;
409 __u8 (*filename
)[F2FS_SLOT_LEN
];
414 static inline void make_dentry_ptr_block(struct inode
*inode
,
415 struct f2fs_dentry_ptr
*d
, struct f2fs_dentry_block
*t
)
418 d
->max
= NR_DENTRY_IN_BLOCK
;
419 d
->nr_bitmap
= SIZE_OF_DENTRY_BITMAP
;
420 d
->bitmap
= &t
->dentry_bitmap
;
421 d
->dentry
= t
->dentry
;
422 d
->filename
= t
->filename
;
425 static inline void make_dentry_ptr_inline(struct inode
*inode
,
426 struct f2fs_dentry_ptr
*d
, void *t
)
428 int entry_cnt
= NR_INLINE_DENTRY(inode
);
429 int bitmap_size
= INLINE_DENTRY_BITMAP_SIZE(inode
);
430 int reserved_size
= INLINE_RESERVED_SIZE(inode
);
434 d
->nr_bitmap
= bitmap_size
;
436 d
->dentry
= t
+ bitmap_size
+ reserved_size
;
437 d
->filename
= t
+ bitmap_size
+ reserved_size
+
438 SIZE_OF_DIR_ENTRY
* entry_cnt
;
442 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
443 * as its node offset to distinguish from index node blocks.
444 * But some bits are used to mark the node block.
446 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
449 ALLOC_NODE
, /* allocate a new node page if needed */
450 LOOKUP_NODE
, /* look up a node without readahead */
452 * look up a node with readahead called
457 #define F2FS_LINK_MAX 0xffffffff /* maximum link count per file */
459 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
461 /* vector size for gang look-up from extent cache that consists of radix tree */
462 #define EXT_TREE_VEC_SIZE 64
464 /* for in-memory extent cache entry */
465 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
467 /* number of extent info in extent cache we try to shrink */
468 #define EXTENT_CACHE_SHRINK_NUMBER 128
471 struct rb_node rb_node
; /* rb node located in rb-tree */
472 unsigned int ofs
; /* start offset of the entry */
473 unsigned int len
; /* length of the entry */
477 unsigned int fofs
; /* start offset in a file */
478 unsigned int len
; /* length of the extent */
479 u32 blk
; /* start block address of the extent */
483 struct rb_node rb_node
;
490 struct extent_info ei
; /* extent info */
493 struct list_head list
; /* node in global extent list of sbi */
494 struct extent_tree
*et
; /* extent tree pointer */
498 nid_t ino
; /* inode number */
499 struct rb_root root
; /* root of extent info rb-tree */
500 struct extent_node
*cached_en
; /* recently accessed extent node */
501 struct extent_info largest
; /* largested extent info */
502 struct list_head list
; /* to be used by sbi->zombie_list */
503 rwlock_t lock
; /* protect extent info rb-tree */
504 atomic_t node_cnt
; /* # of extent node in rb-tree*/
508 * This structure is taken from ext4_map_blocks.
510 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
512 #define F2FS_MAP_NEW (1 << BH_New)
513 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
514 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
515 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
518 struct f2fs_map_blocks
{
522 unsigned int m_flags
;
523 pgoff_t
*m_next_pgofs
; /* point next possible non-hole pgofs */
526 /* for flag in get_data_block */
528 F2FS_GET_BLOCK_DEFAULT
,
529 F2FS_GET_BLOCK_FIEMAP
,
531 F2FS_GET_BLOCK_PRE_DIO
,
532 F2FS_GET_BLOCK_PRE_AIO
,
536 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
538 #define FADVISE_COLD_BIT 0x01
539 #define FADVISE_LOST_PINO_BIT 0x02
540 #define FADVISE_ENCRYPT_BIT 0x04
541 #define FADVISE_ENC_NAME_BIT 0x08
542 #define FADVISE_KEEP_SIZE_BIT 0x10
544 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
545 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
546 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
547 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
548 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
549 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
550 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
551 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
552 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
553 #define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
554 #define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
555 #define file_keep_isize(inode) is_file(inode, FADVISE_KEEP_SIZE_BIT)
556 #define file_set_keep_isize(inode) set_file(inode, FADVISE_KEEP_SIZE_BIT)
558 #define DEF_DIR_LEVEL 0
560 struct f2fs_inode_info
{
561 struct inode vfs_inode
; /* serve a vfs inode */
562 unsigned long i_flags
; /* keep an inode flags for ioctl */
563 unsigned char i_advise
; /* use to give file attribute hints */
564 unsigned char i_dir_level
; /* use for dentry level for large dir */
565 unsigned int i_current_depth
; /* use only in directory structure */
566 unsigned int i_pino
; /* parent inode number */
567 umode_t i_acl_mode
; /* keep file acl mode temporarily */
569 /* Use below internally in f2fs*/
570 unsigned long flags
; /* use to pass per-file flags */
571 struct rw_semaphore i_sem
; /* protect fi info */
572 atomic_t dirty_pages
; /* # of dirty pages */
573 f2fs_hash_t chash
; /* hash value of given file name */
574 unsigned int clevel
; /* maximum level of given file name */
575 struct task_struct
*task
; /* lookup and create consistency */
576 struct task_struct
*cp_task
; /* separate cp/wb IO stats*/
577 nid_t i_xattr_nid
; /* node id that contains xattrs */
578 loff_t last_disk_size
; /* lastly written file size */
581 struct dquot
*i_dquot
[MAXQUOTAS
];
583 /* quota space reservation, managed internally by quota code */
584 qsize_t i_reserved_quota
;
586 struct list_head dirty_list
; /* dirty list for dirs and files */
587 struct list_head gdirty_list
; /* linked in global dirty list */
588 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
589 struct task_struct
*inmem_task
; /* store inmemory task */
590 struct mutex inmem_lock
; /* lock for inmemory pages */
591 struct extent_tree
*extent_tree
; /* cached extent_tree entry */
592 struct rw_semaphore dio_rwsem
[2];/* avoid racing between dio and gc */
593 struct rw_semaphore i_mmap_sem
;
594 struct rw_semaphore i_xattr_sem
; /* avoid racing between reading and changing EAs */
596 int i_extra_isize
; /* size of extra space located in i_addr */
597 kprojid_t i_projid
; /* id for project quota */
600 static inline void get_extent_info(struct extent_info
*ext
,
601 struct f2fs_extent
*i_ext
)
603 ext
->fofs
= le32_to_cpu(i_ext
->fofs
);
604 ext
->blk
= le32_to_cpu(i_ext
->blk
);
605 ext
->len
= le32_to_cpu(i_ext
->len
);
608 static inline void set_raw_extent(struct extent_info
*ext
,
609 struct f2fs_extent
*i_ext
)
611 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
612 i_ext
->blk
= cpu_to_le32(ext
->blk
);
613 i_ext
->len
= cpu_to_le32(ext
->len
);
616 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
617 u32 blk
, unsigned int len
)
624 static inline bool __is_discard_mergeable(struct discard_info
*back
,
625 struct discard_info
*front
)
627 return back
->lstart
+ back
->len
== front
->lstart
;
630 static inline bool __is_discard_back_mergeable(struct discard_info
*cur
,
631 struct discard_info
*back
)
633 return __is_discard_mergeable(back
, cur
);
636 static inline bool __is_discard_front_mergeable(struct discard_info
*cur
,
637 struct discard_info
*front
)
639 return __is_discard_mergeable(cur
, front
);
642 static inline bool __is_extent_mergeable(struct extent_info
*back
,
643 struct extent_info
*front
)
645 return (back
->fofs
+ back
->len
== front
->fofs
&&
646 back
->blk
+ back
->len
== front
->blk
);
649 static inline bool __is_back_mergeable(struct extent_info
*cur
,
650 struct extent_info
*back
)
652 return __is_extent_mergeable(back
, cur
);
655 static inline bool __is_front_mergeable(struct extent_info
*cur
,
656 struct extent_info
*front
)
658 return __is_extent_mergeable(cur
, front
);
661 extern void f2fs_mark_inode_dirty_sync(struct inode
*inode
, bool sync
);
662 static inline void __try_update_largest_extent(struct inode
*inode
,
663 struct extent_tree
*et
, struct extent_node
*en
)
665 if (en
->ei
.len
> et
->largest
.len
) {
666 et
->largest
= en
->ei
;
667 f2fs_mark_inode_dirty_sync(inode
, true);
677 struct f2fs_nm_info
{
678 block_t nat_blkaddr
; /* base disk address of NAT */
679 nid_t max_nid
; /* maximum possible node ids */
680 nid_t available_nids
; /* # of available node ids */
681 nid_t next_scan_nid
; /* the next nid to be scanned */
682 unsigned int ram_thresh
; /* control the memory footprint */
683 unsigned int ra_nid_pages
; /* # of nid pages to be readaheaded */
684 unsigned int dirty_nats_ratio
; /* control dirty nats ratio threshold */
686 /* NAT cache management */
687 struct radix_tree_root nat_root
;/* root of the nat entry cache */
688 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
689 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
690 struct list_head nat_entries
; /* cached nat entry list (clean) */
691 unsigned int nat_cnt
; /* the # of cached nat entries */
692 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
693 unsigned int nat_blocks
; /* # of nat blocks */
695 /* free node ids management */
696 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
697 struct list_head nid_list
[MAX_NID_LIST
];/* lists for free nids */
698 unsigned int nid_cnt
[MAX_NID_LIST
]; /* the number of free node id */
699 spinlock_t nid_list_lock
; /* protect nid lists ops */
700 struct mutex build_lock
; /* lock for build free nids */
701 unsigned char (*free_nid_bitmap
)[NAT_ENTRY_BITMAP_SIZE
];
702 unsigned char *nat_block_bitmap
;
703 unsigned short *free_nid_count
; /* free nid count of NAT block */
706 char *nat_bitmap
; /* NAT bitmap pointer */
708 unsigned int nat_bits_blocks
; /* # of nat bits blocks */
709 unsigned char *nat_bits
; /* NAT bits blocks */
710 unsigned char *full_nat_bits
; /* full NAT pages */
711 unsigned char *empty_nat_bits
; /* empty NAT pages */
712 #ifdef CONFIG_F2FS_CHECK_FS
713 char *nat_bitmap_mir
; /* NAT bitmap mirror */
715 int bitmap_size
; /* bitmap size */
719 * this structure is used as one of function parameters.
720 * all the information are dedicated to a given direct node block determined
721 * by the data offset in a file.
723 struct dnode_of_data
{
724 struct inode
*inode
; /* vfs inode pointer */
725 struct page
*inode_page
; /* its inode page, NULL is possible */
726 struct page
*node_page
; /* cached direct node page */
727 nid_t nid
; /* node id of the direct node block */
728 unsigned int ofs_in_node
; /* data offset in the node page */
729 bool inode_page_locked
; /* inode page is locked or not */
730 bool node_changed
; /* is node block changed */
731 char cur_level
; /* level of hole node page */
732 char max_level
; /* level of current page located */
733 block_t data_blkaddr
; /* block address of the node block */
736 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
737 struct page
*ipage
, struct page
*npage
, nid_t nid
)
739 memset(dn
, 0, sizeof(*dn
));
741 dn
->inode_page
= ipage
;
742 dn
->node_page
= npage
;
749 * By default, there are 6 active log areas across the whole main area.
750 * When considering hot and cold data separation to reduce cleaning overhead,
751 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
753 * In the current design, you should not change the numbers intentionally.
754 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
755 * logs individually according to the underlying devices. (default: 6)
756 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
757 * data and 8 for node logs.
759 #define NR_CURSEG_DATA_TYPE (3)
760 #define NR_CURSEG_NODE_TYPE (3)
761 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
764 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
765 CURSEG_WARM_DATA
, /* data blocks */
766 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
767 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
768 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
769 CURSEG_COLD_NODE
, /* indirect node blocks */
774 struct completion wait
;
775 struct llist_node llnode
;
779 struct flush_cmd_control
{
780 struct task_struct
*f2fs_issue_flush
; /* flush thread */
781 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
782 atomic_t issued_flush
; /* # of issued flushes */
783 atomic_t issing_flush
; /* # of issing flushes */
784 struct llist_head issue_list
; /* list for command issue */
785 struct llist_node
*dispatch_list
; /* list for command dispatch */
788 struct f2fs_sm_info
{
789 struct sit_info
*sit_info
; /* whole segment information */
790 struct free_segmap_info
*free_info
; /* free segment information */
791 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
792 struct curseg_info
*curseg_array
; /* active segment information */
794 block_t seg0_blkaddr
; /* block address of 0'th segment */
795 block_t main_blkaddr
; /* start block address of main area */
796 block_t ssa_blkaddr
; /* start block address of SSA area */
798 unsigned int segment_count
; /* total # of segments */
799 unsigned int main_segments
; /* # of segments in main area */
800 unsigned int reserved_segments
; /* # of reserved segments */
801 unsigned int ovp_segments
; /* # of overprovision segments */
803 /* a threshold to reclaim prefree segments */
804 unsigned int rec_prefree_segments
;
806 /* for batched trimming */
807 unsigned int trim_sections
; /* # of sections to trim */
809 struct list_head sit_entry_set
; /* sit entry set list */
811 unsigned int ipu_policy
; /* in-place-update policy */
812 unsigned int min_ipu_util
; /* in-place-update threshold */
813 unsigned int min_fsync_blocks
; /* threshold for fsync */
814 unsigned int min_hot_blocks
; /* threshold for hot block allocation */
816 /* for flush command control */
817 struct flush_cmd_control
*fcc_info
;
819 /* for discard command control */
820 struct discard_cmd_control
*dcc_info
;
827 * COUNT_TYPE for monitoring
829 * f2fs monitors the number of several block types such as on-writeback,
830 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
832 #define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
846 * The below are the page types of bios used in submit_bio().
847 * The available types are:
848 * DATA User data pages. It operates as async mode.
849 * NODE Node pages. It operates as async mode.
850 * META FS metadata pages such as SIT, NAT, CP.
851 * NR_PAGE_TYPE The number of page types.
852 * META_FLUSH Make sure the previous pages are written
853 * with waiting the bio's completion
854 * ... Only can be used with META.
856 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
863 INMEM
, /* the below types are used by tracepoints only. */
872 HOT
= 0, /* must be zero for meta bio */
878 enum need_lock_type
{
885 APP_DIRECT_IO
, /* app direct IOs */
886 APP_BUFFERED_IO
, /* app buffered IOs */
887 APP_WRITE_IO
, /* app write IOs */
888 APP_MAPPED_IO
, /* app mapped IOs */
889 FS_DATA_IO
, /* data IOs from kworker/fsync/reclaimer */
890 FS_NODE_IO
, /* node IOs from kworker/fsync/reclaimer */
891 FS_META_IO
, /* meta IOs from kworker/reclaimer */
892 FS_GC_DATA_IO
, /* data IOs from forground gc */
893 FS_GC_NODE_IO
, /* node IOs from forground gc */
894 FS_CP_DATA_IO
, /* data IOs from checkpoint */
895 FS_CP_NODE_IO
, /* node IOs from checkpoint */
896 FS_CP_META_IO
, /* meta IOs from checkpoint */
897 FS_DISCARD
, /* discard */
901 struct f2fs_io_info
{
902 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
903 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
904 enum temp_type temp
; /* contains HOT/WARM/COLD */
905 int op
; /* contains REQ_OP_ */
906 int op_flags
; /* req_flag_bits */
907 block_t new_blkaddr
; /* new block address to be written */
908 block_t old_blkaddr
; /* old block address before Cow */
909 struct page
*page
; /* page to be written */
910 struct page
*encrypted_page
; /* encrypted page */
911 struct list_head list
; /* serialize IOs */
912 bool submitted
; /* indicate IO submission */
913 int need_lock
; /* indicate we need to lock cp_rwsem */
914 bool in_list
; /* indicate fio is in io_list */
915 bool is_meta
; /* indicate borrow meta inode mapping or not */
916 enum iostat_type io_type
; /* io type */
919 #define is_read_io(rw) ((rw) == READ)
920 struct f2fs_bio_info
{
921 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
922 struct bio
*bio
; /* bios to merge */
923 sector_t last_block_in_bio
; /* last block number */
924 struct f2fs_io_info fio
; /* store buffered io info. */
925 struct rw_semaphore io_rwsem
; /* blocking op for bio */
926 spinlock_t io_lock
; /* serialize DATA/NODE IOs */
927 struct list_head io_list
; /* track fios */
930 #define FDEV(i) (sbi->devs[i])
931 #define RDEV(i) (raw_super->devs[i])
932 struct f2fs_dev_info
{
933 struct block_device
*bdev
;
934 char path
[MAX_PATH_LEN
];
935 unsigned int total_segments
;
938 #ifdef CONFIG_BLK_DEV_ZONED
939 unsigned int nr_blkz
; /* Total number of zones */
940 u8
*blkz_type
; /* Array of zones type */
945 DIR_INODE
, /* for dirty dir inode */
946 FILE_INODE
, /* for dirty regular/symlink inode */
947 DIRTY_META
, /* for all dirtied inode metadata */
951 /* for inner inode cache management */
952 struct inode_management
{
953 struct radix_tree_root ino_root
; /* ino entry array */
954 spinlock_t ino_lock
; /* for ino entry lock */
955 struct list_head ino_list
; /* inode list head */
956 unsigned long ino_num
; /* number of entries */
959 /* For s_flag in struct f2fs_sb_info */
961 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
962 SBI_IS_CLOSE
, /* specify unmounting */
963 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
964 SBI_POR_DOING
, /* recovery is doing or not */
965 SBI_NEED_SB_WRITE
, /* need to recover superblock */
966 SBI_NEED_CP
, /* need to checkpoint */
975 struct f2fs_sb_info
{
976 struct super_block
*sb
; /* pointer to VFS super block */
977 struct proc_dir_entry
*s_proc
; /* proc entry */
978 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
979 int valid_super_block
; /* valid super block no */
980 unsigned long s_flag
; /* flags for sbi */
982 #ifdef CONFIG_BLK_DEV_ZONED
983 unsigned int blocks_per_blkz
; /* F2FS blocks per zone */
984 unsigned int log_blocks_per_blkz
; /* log2 F2FS blocks per zone */
987 /* for node-related operations */
988 struct f2fs_nm_info
*nm_info
; /* node manager */
989 struct inode
*node_inode
; /* cache node blocks */
991 /* for segment-related operations */
992 struct f2fs_sm_info
*sm_info
; /* segment manager */
994 /* for bio operations */
995 struct f2fs_bio_info
*write_io
[NR_PAGE_TYPE
]; /* for write bios */
996 struct mutex wio_mutex
[NR_PAGE_TYPE
- 1][NR_TEMP_TYPE
];
997 /* bio ordering for NODE/DATA */
998 int write_io_size_bits
; /* Write IO size bits */
999 mempool_t
*write_io_dummy
; /* Dummy pages */
1001 /* for checkpoint */
1002 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
1003 int cur_cp_pack
; /* remain current cp pack */
1004 spinlock_t cp_lock
; /* for flag in ckpt */
1005 struct inode
*meta_inode
; /* cache meta blocks */
1006 struct mutex cp_mutex
; /* checkpoint procedure lock */
1007 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
1008 struct rw_semaphore node_write
; /* locking node writes */
1009 struct rw_semaphore node_change
; /* locking node change */
1010 wait_queue_head_t cp_wait
;
1011 unsigned long last_time
[MAX_TIME
]; /* to store time in jiffies */
1012 long interval_time
[MAX_TIME
]; /* to store thresholds */
1014 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
1016 /* for orphan inode, use 0'th array */
1017 unsigned int max_orphans
; /* max orphan inodes */
1019 /* for inode management */
1020 struct list_head inode_list
[NR_INODE_TYPE
]; /* dirty inode list */
1021 spinlock_t inode_lock
[NR_INODE_TYPE
]; /* for dirty inode list lock */
1023 /* for extent tree cache */
1024 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
1025 struct mutex extent_tree_lock
; /* locking extent radix tree */
1026 struct list_head extent_list
; /* lru list for shrinker */
1027 spinlock_t extent_lock
; /* locking extent lru list */
1028 atomic_t total_ext_tree
; /* extent tree count */
1029 struct list_head zombie_list
; /* extent zombie tree list */
1030 atomic_t total_zombie_tree
; /* extent zombie tree count */
1031 atomic_t total_ext_node
; /* extent info count */
1033 /* basic filesystem units */
1034 unsigned int log_sectors_per_block
; /* log2 sectors per block */
1035 unsigned int log_blocksize
; /* log2 block size */
1036 unsigned int blocksize
; /* block size */
1037 unsigned int root_ino_num
; /* root inode number*/
1038 unsigned int node_ino_num
; /* node inode number*/
1039 unsigned int meta_ino_num
; /* meta inode number*/
1040 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
1041 unsigned int blocks_per_seg
; /* blocks per segment */
1042 unsigned int segs_per_sec
; /* segments per section */
1043 unsigned int secs_per_zone
; /* sections per zone */
1044 unsigned int total_sections
; /* total section count */
1045 unsigned int total_node_count
; /* total node block count */
1046 unsigned int total_valid_node_count
; /* valid node block count */
1047 loff_t max_file_blocks
; /* max block index of file */
1048 int active_logs
; /* # of active logs */
1049 int dir_level
; /* directory level */
1051 block_t user_block_count
; /* # of user blocks */
1052 block_t total_valid_block_count
; /* # of valid blocks */
1053 block_t discard_blks
; /* discard command candidats */
1054 block_t last_valid_block_count
; /* for recovery */
1055 block_t reserved_blocks
; /* configurable reserved blocks */
1057 u32 s_next_generation
; /* for NFS support */
1059 /* # of pages, see count_type */
1060 atomic_t nr_pages
[NR_COUNT_TYPE
];
1061 /* # of allocated blocks */
1062 struct percpu_counter alloc_valid_block_count
;
1064 /* writeback control */
1065 atomic_t wb_sync_req
; /* count # of WB_SYNC threads */
1067 /* valid inode count */
1068 struct percpu_counter total_valid_inode_count
;
1070 struct f2fs_mount_info mount_opt
; /* mount options */
1072 /* for cleaning operations */
1073 struct mutex gc_mutex
; /* mutex for GC */
1074 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
1075 unsigned int cur_victim_sec
; /* current victim section num */
1077 /* threshold for converting bg victims for fg */
1080 /* maximum # of trials to find a victim segment for SSR and GC */
1081 unsigned int max_victim_search
;
1084 * for stat information.
1085 * one is for the LFS mode, and the other is for the SSR mode.
1087 #ifdef CONFIG_F2FS_STAT_FS
1088 struct f2fs_stat_info
*stat_info
; /* FS status information */
1089 unsigned int segment_count
[2]; /* # of allocated segments */
1090 unsigned int block_count
[2]; /* # of allocated blocks */
1091 atomic_t inplace_count
; /* # of inplace update */
1092 atomic64_t total_hit_ext
; /* # of lookup extent cache */
1093 atomic64_t read_hit_rbtree
; /* # of hit rbtree extent node */
1094 atomic64_t read_hit_largest
; /* # of hit largest extent node */
1095 atomic64_t read_hit_cached
; /* # of hit cached extent node */
1096 atomic_t inline_xattr
; /* # of inline_xattr inodes */
1097 atomic_t inline_inode
; /* # of inline_data inodes */
1098 atomic_t inline_dir
; /* # of inline_dentry inodes */
1099 atomic_t aw_cnt
; /* # of atomic writes */
1100 atomic_t vw_cnt
; /* # of volatile writes */
1101 atomic_t max_aw_cnt
; /* max # of atomic writes */
1102 atomic_t max_vw_cnt
; /* max # of volatile writes */
1103 int bg_gc
; /* background gc calls */
1104 unsigned int ndirty_inode
[NR_INODE_TYPE
]; /* # of dirty inodes */
1106 spinlock_t stat_lock
; /* lock for stat operations */
1108 /* For app/fs IO statistics */
1109 spinlock_t iostat_lock
;
1110 unsigned long long write_iostat
[NR_IO_TYPE
];
1113 /* For sysfs suppport */
1114 struct kobject s_kobj
;
1115 struct completion s_kobj_unregister
;
1117 /* For shrinker support */
1118 struct list_head s_list
;
1119 int s_ndevs
; /* number of devices */
1120 struct f2fs_dev_info
*devs
; /* for device list */
1121 struct mutex umount_mutex
;
1122 unsigned int shrinker_run_no
;
1124 /* For write statistics */
1125 u64 sectors_written_start
;
1128 /* Reference to checksum algorithm driver via cryptoapi */
1129 struct crypto_shash
*s_chksum_driver
;
1131 /* Precomputed FS UUID checksum for seeding other checksums */
1132 __u32 s_chksum_seed
;
1134 /* For fault injection */
1135 #ifdef CONFIG_F2FS_FAULT_INJECTION
1136 struct f2fs_fault_info fault_info
;
1140 /* Names of quota files with journalled quota */
1141 char *s_qf_names
[MAXQUOTAS
];
1142 int s_jquota_fmt
; /* Format of quota to use */
1146 #ifdef CONFIG_F2FS_FAULT_INJECTION
1147 #define f2fs_show_injection_info(type) \
1148 printk("%sF2FS-fs : inject %s in %s of %pF\n", \
1149 KERN_INFO, fault_name[type], \
1150 __func__, __builtin_return_address(0))
1151 static inline bool time_to_inject(struct f2fs_sb_info
*sbi
, int type
)
1153 struct f2fs_fault_info
*ffi
= &sbi
->fault_info
;
1155 if (!ffi
->inject_rate
)
1158 if (!IS_FAULT_SET(ffi
, type
))
1161 atomic_inc(&ffi
->inject_ops
);
1162 if (atomic_read(&ffi
->inject_ops
) >= ffi
->inject_rate
) {
1163 atomic_set(&ffi
->inject_ops
, 0);
1171 * Test if the mounted volume is a multi-device volume.
1172 * - For a single regular disk volume, sbi->s_ndevs is 0.
1173 * - For a single zoned disk volume, sbi->s_ndevs is 1.
1174 * - For a multi-device volume, sbi->s_ndevs is always 2 or more.
1176 static inline bool f2fs_is_multi_device(struct f2fs_sb_info
*sbi
)
1178 return sbi
->s_ndevs
> 1;
1181 /* For write statistics. Suppose sector size is 512 bytes,
1182 * and the return value is in kbytes. s is of struct f2fs_sb_info.
1184 #define BD_PART_WRITTEN(s) \
1185 (((u64)part_stat_read((s)->sb->s_bdev->bd_part, sectors[1]) - \
1186 (s)->sectors_written_start) >> 1)
1188 static inline void f2fs_update_time(struct f2fs_sb_info
*sbi
, int type
)
1190 sbi
->last_time
[type
] = jiffies
;
1193 static inline bool f2fs_time_over(struct f2fs_sb_info
*sbi
, int type
)
1195 struct timespec ts
= {sbi
->interval_time
[type
], 0};
1196 unsigned long interval
= timespec_to_jiffies(&ts
);
1198 return time_after(jiffies
, sbi
->last_time
[type
] + interval
);
1201 static inline bool is_idle(struct f2fs_sb_info
*sbi
)
1203 struct block_device
*bdev
= sbi
->sb
->s_bdev
;
1204 struct request_queue
*q
= bdev_get_queue(bdev
);
1205 struct request_list
*rl
= &q
->root_rl
;
1207 if (rl
->count
[BLK_RW_SYNC
] || rl
->count
[BLK_RW_ASYNC
])
1210 return f2fs_time_over(sbi
, REQ_TIME
);
1216 static inline u32
f2fs_crc32(struct f2fs_sb_info
*sbi
, const void *address
,
1217 unsigned int length
)
1219 SHASH_DESC_ON_STACK(shash
, sbi
->s_chksum_driver
);
1220 u32
*ctx
= (u32
*)shash_desc_ctx(shash
);
1224 shash
->tfm
= sbi
->s_chksum_driver
;
1226 *ctx
= F2FS_SUPER_MAGIC
;
1228 err
= crypto_shash_update(shash
, address
, length
);
1236 static inline bool f2fs_crc_valid(struct f2fs_sb_info
*sbi
, __u32 blk_crc
,
1237 void *buf
, size_t buf_size
)
1239 return f2fs_crc32(sbi
, buf
, buf_size
) == blk_crc
;
1242 static inline u32
f2fs_chksum(struct f2fs_sb_info
*sbi
, u32 crc
,
1243 const void *address
, unsigned int length
)
1246 struct shash_desc shash
;
1251 BUG_ON(crypto_shash_descsize(sbi
->s_chksum_driver
) != sizeof(desc
.ctx
));
1253 desc
.shash
.tfm
= sbi
->s_chksum_driver
;
1254 desc
.shash
.flags
= 0;
1255 *(u32
*)desc
.ctx
= crc
;
1257 err
= crypto_shash_update(&desc
.shash
, address
, length
);
1260 return *(u32
*)desc
.ctx
;
1263 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
1265 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
1268 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
1270 return sb
->s_fs_info
;
1273 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
1275 return F2FS_SB(inode
->i_sb
);
1278 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
1280 return F2FS_I_SB(mapping
->host
);
1283 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
1285 return F2FS_M_SB(page
->mapping
);
1288 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
1290 return (struct f2fs_super_block
*)(sbi
->raw_super
);
1293 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
1295 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
1298 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
1300 return (struct f2fs_node
*)page_address(page
);
1303 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
1305 return &((struct f2fs_node
*)page_address(page
))->i
;
1308 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
1310 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
1313 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
1315 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
1318 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
1320 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
1323 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
1325 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
1328 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
1330 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
1333 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
1335 return sbi
->meta_inode
->i_mapping
;
1338 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
1340 return sbi
->node_inode
->i_mapping
;
1343 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
1345 return test_bit(type
, &sbi
->s_flag
);
1348 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1350 set_bit(type
, &sbi
->s_flag
);
1353 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
1355 clear_bit(type
, &sbi
->s_flag
);
1358 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
1360 return le64_to_cpu(cp
->checkpoint_ver
);
1363 static inline __u64
cur_cp_crc(struct f2fs_checkpoint
*cp
)
1365 size_t crc_offset
= le32_to_cpu(cp
->checksum_offset
);
1366 return le32_to_cpu(*((__le32
*)((unsigned char *)cp
+ crc_offset
)));
1369 static inline bool __is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1371 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1373 return ckpt_flags
& f
;
1376 static inline bool is_set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1378 return __is_set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1381 static inline void __set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1383 unsigned int ckpt_flags
;
1385 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1387 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1390 static inline void set_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1392 unsigned long flags
;
1394 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1395 __set_ckpt_flags(F2FS_CKPT(sbi
), f
);
1396 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1399 static inline void __clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
1401 unsigned int ckpt_flags
;
1403 ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
1405 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
1408 static inline void clear_ckpt_flags(struct f2fs_sb_info
*sbi
, unsigned int f
)
1410 unsigned long flags
;
1412 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1413 __clear_ckpt_flags(F2FS_CKPT(sbi
), f
);
1414 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1417 static inline void disable_nat_bits(struct f2fs_sb_info
*sbi
, bool lock
)
1419 unsigned long flags
;
1421 set_sbi_flag(sbi
, SBI_NEED_FSCK
);
1424 spin_lock_irqsave(&sbi
->cp_lock
, flags
);
1425 __clear_ckpt_flags(F2FS_CKPT(sbi
), CP_NAT_BITS_FLAG
);
1426 kfree(NM_I(sbi
)->nat_bits
);
1427 NM_I(sbi
)->nat_bits
= NULL
;
1429 spin_unlock_irqrestore(&sbi
->cp_lock
, flags
);
1432 static inline bool enabled_nat_bits(struct f2fs_sb_info
*sbi
,
1433 struct cp_control
*cpc
)
1435 bool set
= is_set_ckpt_flags(sbi
, CP_NAT_BITS_FLAG
);
1437 return (cpc
) ? (cpc
->reason
& CP_UMOUNT
) && set
: set
;
1440 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
1442 down_read(&sbi
->cp_rwsem
);
1445 static inline int f2fs_trylock_op(struct f2fs_sb_info
*sbi
)
1447 return down_read_trylock(&sbi
->cp_rwsem
);
1450 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
1452 up_read(&sbi
->cp_rwsem
);
1455 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
1457 down_write(&sbi
->cp_rwsem
);
1460 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
1462 up_write(&sbi
->cp_rwsem
);
1465 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
1467 int reason
= CP_SYNC
;
1469 if (test_opt(sbi
, FASTBOOT
))
1470 reason
= CP_FASTBOOT
;
1471 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
1476 static inline bool __remain_node_summaries(int reason
)
1478 return (reason
& (CP_UMOUNT
| CP_FASTBOOT
));
1481 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
1483 return (is_set_ckpt_flags(sbi
, CP_UMOUNT_FLAG
) ||
1484 is_set_ckpt_flags(sbi
, CP_FASTBOOT_FLAG
));
1488 * Check whether the inode has blocks or not
1490 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
1492 block_t xattr_block
= F2FS_I(inode
)->i_xattr_nid
? 1 : 0;
1494 return (inode
->i_blocks
>> F2FS_LOG_SECTORS_PER_BLOCK
) > xattr_block
;
1497 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
1499 return ofs
== XATTR_NODE_OFFSET
;
1502 static inline void f2fs_i_blocks_write(struct inode
*, block_t
, bool, bool);
1503 static inline int inc_valid_block_count(struct f2fs_sb_info
*sbi
,
1504 struct inode
*inode
, blkcnt_t
*count
)
1506 blkcnt_t diff
= 0, release
= 0;
1507 block_t avail_user_block_count
;
1510 ret
= dquot_reserve_block(inode
, *count
);
1514 #ifdef CONFIG_F2FS_FAULT_INJECTION
1515 if (time_to_inject(sbi
, FAULT_BLOCK
)) {
1516 f2fs_show_injection_info(FAULT_BLOCK
);
1522 * let's increase this in prior to actual block count change in order
1523 * for f2fs_sync_file to avoid data races when deciding checkpoint.
1525 percpu_counter_add(&sbi
->alloc_valid_block_count
, (*count
));
1527 spin_lock(&sbi
->stat_lock
);
1528 sbi
->total_valid_block_count
+= (block_t
)(*count
);
1529 avail_user_block_count
= sbi
->user_block_count
- sbi
->reserved_blocks
;
1530 if (unlikely(sbi
->total_valid_block_count
> avail_user_block_count
)) {
1531 diff
= sbi
->total_valid_block_count
- avail_user_block_count
;
1534 sbi
->total_valid_block_count
= avail_user_block_count
;
1536 spin_unlock(&sbi
->stat_lock
);
1537 percpu_counter_sub(&sbi
->alloc_valid_block_count
, diff
);
1541 spin_unlock(&sbi
->stat_lock
);
1544 dquot_release_reservation_block(inode
, release
);
1545 f2fs_i_blocks_write(inode
, *count
, true, true);
1549 dquot_release_reservation_block(inode
, release
);
1553 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
1554 struct inode
*inode
,
1557 blkcnt_t sectors
= count
<< F2FS_LOG_SECTORS_PER_BLOCK
;
1559 spin_lock(&sbi
->stat_lock
);
1560 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
1561 f2fs_bug_on(sbi
, inode
->i_blocks
< sectors
);
1562 sbi
->total_valid_block_count
-= (block_t
)count
;
1563 spin_unlock(&sbi
->stat_lock
);
1564 f2fs_i_blocks_write(inode
, count
, false, true);
1567 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1569 atomic_inc(&sbi
->nr_pages
[count_type
]);
1571 if (count_type
== F2FS_DIRTY_DATA
|| count_type
== F2FS_INMEM_PAGES
||
1572 count_type
== F2FS_WB_CP_DATA
|| count_type
== F2FS_WB_DATA
)
1575 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
1578 static inline void inode_inc_dirty_pages(struct inode
*inode
)
1580 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
1581 inc_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1582 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1585 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1587 atomic_dec(&sbi
->nr_pages
[count_type
]);
1590 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1592 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
) &&
1593 !S_ISLNK(inode
->i_mode
))
1596 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1597 dec_page_count(F2FS_I_SB(inode
), S_ISDIR(inode
->i_mode
) ?
1598 F2FS_DIRTY_DENTS
: F2FS_DIRTY_DATA
);
1601 static inline s64
get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1603 return atomic_read(&sbi
->nr_pages
[count_type
]);
1606 static inline int get_dirty_pages(struct inode
*inode
)
1608 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1611 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1613 unsigned int pages_per_sec
= sbi
->segs_per_sec
* sbi
->blocks_per_seg
;
1614 unsigned int segs
= (get_pages(sbi
, block_type
) + pages_per_sec
- 1) >>
1615 sbi
->log_blocks_per_seg
;
1617 return segs
/ sbi
->segs_per_sec
;
1620 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1622 return sbi
->total_valid_block_count
;
1625 static inline block_t
discard_blocks(struct f2fs_sb_info
*sbi
)
1627 return sbi
->discard_blks
;
1630 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1632 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1634 /* return NAT or SIT bitmap */
1635 if (flag
== NAT_BITMAP
)
1636 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1637 else if (flag
== SIT_BITMAP
)
1638 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1643 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1645 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1648 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1650 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1653 if (__cp_payload(sbi
) > 0) {
1654 if (flag
== NAT_BITMAP
)
1655 return &ckpt
->sit_nat_version_bitmap
;
1657 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1659 offset
= (flag
== NAT_BITMAP
) ?
1660 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1661 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1665 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1667 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1669 if (sbi
->cur_cp_pack
== 2)
1670 start_addr
+= sbi
->blocks_per_seg
;
1674 static inline block_t
__start_cp_next_addr(struct f2fs_sb_info
*sbi
)
1676 block_t start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1678 if (sbi
->cur_cp_pack
== 1)
1679 start_addr
+= sbi
->blocks_per_seg
;
1683 static inline void __set_cp_next_pack(struct f2fs_sb_info
*sbi
)
1685 sbi
->cur_cp_pack
= (sbi
->cur_cp_pack
== 1) ? 2 : 1;
1688 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1690 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1693 static inline int inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1694 struct inode
*inode
, bool is_inode
)
1696 block_t valid_block_count
;
1697 unsigned int valid_node_count
;
1698 bool quota
= inode
&& !is_inode
;
1701 int ret
= dquot_reserve_block(inode
, 1);
1706 spin_lock(&sbi
->stat_lock
);
1708 valid_block_count
= sbi
->total_valid_block_count
+ 1;
1709 if (unlikely(valid_block_count
+ sbi
->reserved_blocks
>
1710 sbi
->user_block_count
)) {
1711 spin_unlock(&sbi
->stat_lock
);
1715 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1716 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1717 spin_unlock(&sbi
->stat_lock
);
1721 sbi
->total_valid_node_count
++;
1722 sbi
->total_valid_block_count
++;
1723 spin_unlock(&sbi
->stat_lock
);
1727 f2fs_mark_inode_dirty_sync(inode
, true);
1729 f2fs_i_blocks_write(inode
, 1, true, true);
1732 percpu_counter_inc(&sbi
->alloc_valid_block_count
);
1737 dquot_release_reservation_block(inode
, 1);
1741 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1742 struct inode
*inode
, bool is_inode
)
1744 spin_lock(&sbi
->stat_lock
);
1746 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1747 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1748 f2fs_bug_on(sbi
, !is_inode
&& !inode
->i_blocks
);
1750 sbi
->total_valid_node_count
--;
1751 sbi
->total_valid_block_count
--;
1753 spin_unlock(&sbi
->stat_lock
);
1756 f2fs_i_blocks_write(inode
, 1, false, true);
1759 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1761 return sbi
->total_valid_node_count
;
1764 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1766 percpu_counter_inc(&sbi
->total_valid_inode_count
);
1769 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1771 percpu_counter_dec(&sbi
->total_valid_inode_count
);
1774 static inline s64
valid_inode_count(struct f2fs_sb_info
*sbi
)
1776 return percpu_counter_sum_positive(&sbi
->total_valid_inode_count
);
1779 static inline struct page
*f2fs_grab_cache_page(struct address_space
*mapping
,
1780 pgoff_t index
, bool for_write
)
1782 #ifdef CONFIG_F2FS_FAULT_INJECTION
1786 page
= find_get_page_flags(mapping
, index
,
1787 FGP_LOCK
| FGP_ACCESSED
);
1789 page
= find_lock_page(mapping
, index
);
1793 if (time_to_inject(F2FS_M_SB(mapping
), FAULT_PAGE_ALLOC
)) {
1794 f2fs_show_injection_info(FAULT_PAGE_ALLOC
);
1799 return grab_cache_page(mapping
, index
);
1800 return grab_cache_page_write_begin(mapping
, index
, AOP_FLAG_NOFS
);
1803 static inline void f2fs_copy_page(struct page
*src
, struct page
*dst
)
1805 char *src_kaddr
= kmap(src
);
1806 char *dst_kaddr
= kmap(dst
);
1808 memcpy(dst_kaddr
, src_kaddr
, PAGE_SIZE
);
1813 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1819 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1825 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1828 f2fs_put_page(dn
->node_page
, 1);
1829 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1830 f2fs_put_page(dn
->inode_page
, 0);
1831 dn
->node_page
= NULL
;
1832 dn
->inode_page
= NULL
;
1835 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
1838 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
1841 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
1846 entry
= kmem_cache_alloc(cachep
, flags
);
1848 entry
= kmem_cache_alloc(cachep
, flags
| __GFP_NOFAIL
);
1852 static inline struct bio
*f2fs_bio_alloc(int npages
)
1856 /* No failure on bio allocation */
1857 bio
= bio_alloc(GFP_NOIO
, npages
);
1859 bio
= bio_alloc(GFP_NOIO
| __GFP_NOFAIL
, npages
);
1863 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
1864 unsigned long index
, void *item
)
1866 while (radix_tree_insert(root
, index
, item
))
1870 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1872 static inline bool IS_INODE(struct page
*page
)
1874 struct f2fs_node
*p
= F2FS_NODE(page
);
1876 return RAW_IS_INODE(p
);
1879 static inline int offset_in_addr(struct f2fs_inode
*i
)
1881 return (i
->i_inline
& F2FS_EXTRA_ATTR
) ?
1882 (le16_to_cpu(i
->i_extra_isize
) / sizeof(__le32
)) : 0;
1885 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
1887 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
1890 static inline int f2fs_has_extra_attr(struct inode
*inode
);
1891 static inline block_t
datablock_addr(struct inode
*inode
,
1892 struct page
*node_page
, unsigned int offset
)
1894 struct f2fs_node
*raw_node
;
1897 bool is_inode
= IS_INODE(node_page
);
1899 raw_node
= F2FS_NODE(node_page
);
1901 /* from GC path only */
1904 base
= offset_in_addr(&raw_node
->i
);
1905 } else if (f2fs_has_extra_attr(inode
) && is_inode
) {
1906 base
= get_extra_isize(inode
);
1909 addr_array
= blkaddr_in_node(raw_node
);
1910 return le32_to_cpu(addr_array
[base
+ offset
]);
1913 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
1918 mask
= 1 << (7 - (nr
& 0x07));
1919 return mask
& *addr
;
1922 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
1927 mask
= 1 << (7 - (nr
& 0x07));
1931 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
1936 mask
= 1 << (7 - (nr
& 0x07));
1940 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
1946 mask
= 1 << (7 - (nr
& 0x07));
1952 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
1958 mask
= 1 << (7 - (nr
& 0x07));
1964 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
1969 mask
= 1 << (7 - (nr
& 0x07));
1973 #define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
1974 #define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
1975 #define F2FS_FL_INHERITED (FS_PROJINHERIT_FL)
1977 static inline __u32
f2fs_mask_flags(umode_t mode
, __u32 flags
)
1981 else if (S_ISREG(mode
))
1982 return flags
& F2FS_REG_FLMASK
;
1984 return flags
& F2FS_OTHER_FLMASK
;
1987 /* used for f2fs_inode_info->flags */
1989 FI_NEW_INODE
, /* indicate newly allocated inode */
1990 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
1991 FI_AUTO_RECOVER
, /* indicate inode is recoverable */
1992 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
1993 FI_INC_LINK
, /* need to increment i_nlink */
1994 FI_ACL_MODE
, /* indicate acl mode */
1995 FI_NO_ALLOC
, /* should not allocate any blocks */
1996 FI_FREE_NID
, /* free allocated nide */
1997 FI_NO_EXTENT
, /* not to use the extent cache */
1998 FI_INLINE_XATTR
, /* used for inline xattr */
1999 FI_INLINE_DATA
, /* used for inline data*/
2000 FI_INLINE_DENTRY
, /* used for inline dentry */
2001 FI_APPEND_WRITE
, /* inode has appended data */
2002 FI_UPDATE_WRITE
, /* inode has in-place-update data */
2003 FI_NEED_IPU
, /* used for ipu per file */
2004 FI_ATOMIC_FILE
, /* indicate atomic file */
2005 FI_ATOMIC_COMMIT
, /* indicate the state of atomical committing */
2006 FI_VOLATILE_FILE
, /* indicate volatile file */
2007 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
2008 FI_DROP_CACHE
, /* drop dirty page cache */
2009 FI_DATA_EXIST
, /* indicate data exists */
2010 FI_INLINE_DOTS
, /* indicate inline dot dentries */
2011 FI_DO_DEFRAG
, /* indicate defragment is running */
2012 FI_DIRTY_FILE
, /* indicate regular/symlink has dirty pages */
2013 FI_NO_PREALLOC
, /* indicate skipped preallocated blocks */
2014 FI_HOT_DATA
, /* indicate file is hot */
2015 FI_EXTRA_ATTR
, /* indicate file has extra attribute */
2016 FI_PROJ_INHERIT
, /* indicate file inherits projectid */
2019 static inline void __mark_inode_dirty_flag(struct inode
*inode
,
2023 case FI_INLINE_XATTR
:
2024 case FI_INLINE_DATA
:
2025 case FI_INLINE_DENTRY
:
2029 case FI_INLINE_DOTS
:
2030 f2fs_mark_inode_dirty_sync(inode
, true);
2034 static inline void set_inode_flag(struct inode
*inode
, int flag
)
2036 if (!test_bit(flag
, &F2FS_I(inode
)->flags
))
2037 set_bit(flag
, &F2FS_I(inode
)->flags
);
2038 __mark_inode_dirty_flag(inode
, flag
, true);
2041 static inline int is_inode_flag_set(struct inode
*inode
, int flag
)
2043 return test_bit(flag
, &F2FS_I(inode
)->flags
);
2046 static inline void clear_inode_flag(struct inode
*inode
, int flag
)
2048 if (test_bit(flag
, &F2FS_I(inode
)->flags
))
2049 clear_bit(flag
, &F2FS_I(inode
)->flags
);
2050 __mark_inode_dirty_flag(inode
, flag
, false);
2053 static inline void set_acl_inode(struct inode
*inode
, umode_t mode
)
2055 F2FS_I(inode
)->i_acl_mode
= mode
;
2056 set_inode_flag(inode
, FI_ACL_MODE
);
2057 f2fs_mark_inode_dirty_sync(inode
, false);
2060 static inline void f2fs_i_links_write(struct inode
*inode
, bool inc
)
2066 f2fs_mark_inode_dirty_sync(inode
, true);
2069 static inline void f2fs_i_blocks_write(struct inode
*inode
,
2070 block_t diff
, bool add
, bool claim
)
2072 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2073 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2075 /* add = 1, claim = 1 should be dquot_reserve_block in pair */
2078 dquot_claim_block(inode
, diff
);
2080 dquot_alloc_block_nofail(inode
, diff
);
2082 dquot_free_block(inode
, diff
);
2085 f2fs_mark_inode_dirty_sync(inode
, true);
2086 if (clean
|| recover
)
2087 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2090 static inline void f2fs_i_size_write(struct inode
*inode
, loff_t i_size
)
2092 bool clean
= !is_inode_flag_set(inode
, FI_DIRTY_INODE
);
2093 bool recover
= is_inode_flag_set(inode
, FI_AUTO_RECOVER
);
2095 if (i_size_read(inode
) == i_size
)
2098 i_size_write(inode
, i_size
);
2099 f2fs_mark_inode_dirty_sync(inode
, true);
2100 if (clean
|| recover
)
2101 set_inode_flag(inode
, FI_AUTO_RECOVER
);
2104 static inline void f2fs_i_depth_write(struct inode
*inode
, unsigned int depth
)
2106 F2FS_I(inode
)->i_current_depth
= depth
;
2107 f2fs_mark_inode_dirty_sync(inode
, true);
2110 static inline void f2fs_i_xnid_write(struct inode
*inode
, nid_t xnid
)
2112 F2FS_I(inode
)->i_xattr_nid
= xnid
;
2113 f2fs_mark_inode_dirty_sync(inode
, true);
2116 static inline void f2fs_i_pino_write(struct inode
*inode
, nid_t pino
)
2118 F2FS_I(inode
)->i_pino
= pino
;
2119 f2fs_mark_inode_dirty_sync(inode
, true);
2122 static inline void get_inline_info(struct inode
*inode
, struct f2fs_inode
*ri
)
2124 struct f2fs_inode_info
*fi
= F2FS_I(inode
);
2126 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
2127 set_bit(FI_INLINE_XATTR
, &fi
->flags
);
2128 if (ri
->i_inline
& F2FS_INLINE_DATA
)
2129 set_bit(FI_INLINE_DATA
, &fi
->flags
);
2130 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
2131 set_bit(FI_INLINE_DENTRY
, &fi
->flags
);
2132 if (ri
->i_inline
& F2FS_DATA_EXIST
)
2133 set_bit(FI_DATA_EXIST
, &fi
->flags
);
2134 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
2135 set_bit(FI_INLINE_DOTS
, &fi
->flags
);
2136 if (ri
->i_inline
& F2FS_EXTRA_ATTR
)
2137 set_bit(FI_EXTRA_ATTR
, &fi
->flags
);
2140 static inline void set_raw_inline(struct inode
*inode
, struct f2fs_inode
*ri
)
2144 if (is_inode_flag_set(inode
, FI_INLINE_XATTR
))
2145 ri
->i_inline
|= F2FS_INLINE_XATTR
;
2146 if (is_inode_flag_set(inode
, FI_INLINE_DATA
))
2147 ri
->i_inline
|= F2FS_INLINE_DATA
;
2148 if (is_inode_flag_set(inode
, FI_INLINE_DENTRY
))
2149 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
2150 if (is_inode_flag_set(inode
, FI_DATA_EXIST
))
2151 ri
->i_inline
|= F2FS_DATA_EXIST
;
2152 if (is_inode_flag_set(inode
, FI_INLINE_DOTS
))
2153 ri
->i_inline
|= F2FS_INLINE_DOTS
;
2154 if (is_inode_flag_set(inode
, FI_EXTRA_ATTR
))
2155 ri
->i_inline
|= F2FS_EXTRA_ATTR
;
2158 static inline int f2fs_has_extra_attr(struct inode
*inode
)
2160 return is_inode_flag_set(inode
, FI_EXTRA_ATTR
);
2163 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
2165 return is_inode_flag_set(inode
, FI_INLINE_XATTR
);
2168 static inline unsigned int addrs_per_inode(struct inode
*inode
)
2170 if (f2fs_has_inline_xattr(inode
))
2171 return CUR_ADDRS_PER_INODE(inode
) - F2FS_INLINE_XATTR_ADDRS
;
2172 return CUR_ADDRS_PER_INODE(inode
);
2175 static inline void *inline_xattr_addr(struct page
*page
)
2177 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2179 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
2180 F2FS_INLINE_XATTR_ADDRS
]);
2183 static inline int inline_xattr_size(struct inode
*inode
)
2185 if (f2fs_has_inline_xattr(inode
))
2186 return F2FS_INLINE_XATTR_ADDRS
<< 2;
2191 static inline int f2fs_has_inline_data(struct inode
*inode
)
2193 return is_inode_flag_set(inode
, FI_INLINE_DATA
);
2196 static inline int f2fs_exist_data(struct inode
*inode
)
2198 return is_inode_flag_set(inode
, FI_DATA_EXIST
);
2201 static inline int f2fs_has_inline_dots(struct inode
*inode
)
2203 return is_inode_flag_set(inode
, FI_INLINE_DOTS
);
2206 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
2208 return is_inode_flag_set(inode
, FI_ATOMIC_FILE
);
2211 static inline bool f2fs_is_commit_atomic_write(struct inode
*inode
)
2213 return is_inode_flag_set(inode
, FI_ATOMIC_COMMIT
);
2216 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
2218 return is_inode_flag_set(inode
, FI_VOLATILE_FILE
);
2221 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
2223 return is_inode_flag_set(inode
, FI_FIRST_BLOCK_WRITTEN
);
2226 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
2228 return is_inode_flag_set(inode
, FI_DROP_CACHE
);
2231 static inline void *inline_data_addr(struct inode
*inode
, struct page
*page
)
2233 struct f2fs_inode
*ri
= F2FS_INODE(page
);
2234 int extra_size
= get_extra_isize(inode
);
2236 return (void *)&(ri
->i_addr
[extra_size
+ DEF_INLINE_RESERVED_SIZE
]);
2239 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
2241 return is_inode_flag_set(inode
, FI_INLINE_DENTRY
);
2244 static inline void f2fs_dentry_kunmap(struct inode
*dir
, struct page
*page
)
2246 if (!f2fs_has_inline_dentry(dir
))
2250 static inline int is_file(struct inode
*inode
, int type
)
2252 return F2FS_I(inode
)->i_advise
& type
;
2255 static inline void set_file(struct inode
*inode
, int type
)
2257 F2FS_I(inode
)->i_advise
|= type
;
2258 f2fs_mark_inode_dirty_sync(inode
, true);
2261 static inline void clear_file(struct inode
*inode
, int type
)
2263 F2FS_I(inode
)->i_advise
&= ~type
;
2264 f2fs_mark_inode_dirty_sync(inode
, true);
2267 static inline bool f2fs_skip_inode_update(struct inode
*inode
, int dsync
)
2270 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2273 spin_lock(&sbi
->inode_lock
[DIRTY_META
]);
2274 ret
= list_empty(&F2FS_I(inode
)->gdirty_list
);
2275 spin_unlock(&sbi
->inode_lock
[DIRTY_META
]);
2278 if (!is_inode_flag_set(inode
, FI_AUTO_RECOVER
) ||
2279 file_keep_isize(inode
) ||
2280 i_size_read(inode
) & PAGE_MASK
)
2282 return F2FS_I(inode
)->last_disk_size
== i_size_read(inode
);
2285 static inline int f2fs_readonly(struct super_block
*sb
)
2287 return sb
->s_flags
& MS_RDONLY
;
2290 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
2292 return is_set_ckpt_flags(sbi
, CP_ERROR_FLAG
);
2295 static inline bool is_dot_dotdot(const struct qstr
*str
)
2297 if (str
->len
== 1 && str
->name
[0] == '.')
2300 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
2306 static inline bool f2fs_may_extent_tree(struct inode
*inode
)
2308 struct f2fs_sb_info
*sbi
= F2FS_I_SB(inode
);
2310 if (!test_opt(sbi
, EXTENT_CACHE
) ||
2311 is_inode_flag_set(inode
, FI_NO_EXTENT
))
2315 * for recovered files during mount do not create extents
2316 * if shrinker is not registered.
2318 if (list_empty(&sbi
->s_list
))
2321 return S_ISREG(inode
->i_mode
);
2324 static inline void *f2fs_kmalloc(struct f2fs_sb_info
*sbi
,
2325 size_t size
, gfp_t flags
)
2327 #ifdef CONFIG_F2FS_FAULT_INJECTION
2328 if (time_to_inject(sbi
, FAULT_KMALLOC
)) {
2329 f2fs_show_injection_info(FAULT_KMALLOC
);
2333 return kmalloc(size
, flags
);
2336 static inline int get_extra_isize(struct inode
*inode
)
2338 return F2FS_I(inode
)->i_extra_isize
/ sizeof(__le32
);
2341 #define get_inode_mode(i) \
2342 ((is_inode_flag_set(i, FI_ACL_MODE)) ? \
2343 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
2345 #define F2FS_TOTAL_EXTRA_ATTR_SIZE \
2346 (offsetof(struct f2fs_inode, i_extra_end) - \
2347 offsetof(struct f2fs_inode, i_extra_isize)) \
2349 #define F2FS_OLD_ATTRIBUTE_SIZE (offsetof(struct f2fs_inode, i_addr))
2350 #define F2FS_FITS_IN_INODE(f2fs_inode, extra_isize, field) \
2351 ((offsetof(typeof(*f2fs_inode), field) + \
2352 sizeof((f2fs_inode)->field)) \
2353 <= (F2FS_OLD_ATTRIBUTE_SIZE + extra_isize)) \
2355 static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
2359 spin_lock(&sbi
->iostat_lock
);
2360 for (i
= 0; i
< NR_IO_TYPE
; i
++)
2361 sbi
->write_iostat
[i
] = 0;
2362 spin_unlock(&sbi
->iostat_lock
);
2365 static inline void f2fs_update_iostat(struct f2fs_sb_info
*sbi
,
2366 enum iostat_type type
, unsigned long long io_bytes
)
2368 if (!sbi
->iostat_enable
)
2370 spin_lock(&sbi
->iostat_lock
);
2371 sbi
->write_iostat
[type
] += io_bytes
;
2373 if (type
== APP_WRITE_IO
|| type
== APP_DIRECT_IO
)
2374 sbi
->write_iostat
[APP_BUFFERED_IO
] =
2375 sbi
->write_iostat
[APP_WRITE_IO
] -
2376 sbi
->write_iostat
[APP_DIRECT_IO
];
2377 spin_unlock(&sbi
->iostat_lock
);
2380 #define __is_meta_io(fio) (PAGE_TYPE_OF_BIO(fio->type) == META && \
2381 (!is_read_io(fio->op) || fio->is_meta))
2383 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info
*sbi
,
2384 block_t blkaddr
, int type
);
2385 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2386 static inline void verify_blkaddr(struct f2fs_sb_info
*sbi
,
2387 block_t blkaddr
, int type
)
2389 if (!f2fs_is_valid_blkaddr(sbi
, blkaddr
, type
)) {
2390 f2fs_msg(sbi
->sb
, KERN_ERR
,
2391 "invalid blkaddr: %u, type: %d, run fsck to fix.",
2393 f2fs_bug_on(sbi
, 1);
2397 static inline bool __is_valid_data_blkaddr(block_t blkaddr
)
2399 if (blkaddr
== NEW_ADDR
|| blkaddr
== NULL_ADDR
)
2404 static inline bool is_valid_data_blkaddr(struct f2fs_sb_info
*sbi
,
2407 if (!__is_valid_data_blkaddr(blkaddr
))
2409 verify_blkaddr(sbi
, blkaddr
, DATA_GENERIC
);
2416 int f2fs_sync_file(struct file
*file
, loff_t start
, loff_t end
, int datasync
);
2417 void truncate_data_blocks(struct dnode_of_data
*dn
);
2418 int truncate_blocks(struct inode
*inode
, u64 from
, bool lock
);
2419 int f2fs_truncate(struct inode
*inode
);
2420 int f2fs_getattr(const struct path
*path
, struct kstat
*stat
,
2421 u32 request_mask
, unsigned int flags
);
2422 int f2fs_setattr(struct dentry
*dentry
, struct iattr
*attr
);
2423 int truncate_hole(struct inode
*inode
, pgoff_t pg_start
, pgoff_t pg_end
);
2424 int truncate_data_blocks_range(struct dnode_of_data
*dn
, int count
);
2425 long f2fs_ioctl(struct file
*filp
, unsigned int cmd
, unsigned long arg
);
2426 long f2fs_compat_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
);
2431 void f2fs_set_inode_flags(struct inode
*inode
);
2432 bool f2fs_inode_chksum_verify(struct f2fs_sb_info
*sbi
, struct page
*page
);
2433 void f2fs_inode_chksum_set(struct f2fs_sb_info
*sbi
, struct page
*page
);
2434 struct inode
*f2fs_iget(struct super_block
*sb
, unsigned long ino
);
2435 struct inode
*f2fs_iget_retry(struct super_block
*sb
, unsigned long ino
);
2436 int try_to_free_nats(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2437 int update_inode(struct inode
*inode
, struct page
*node_page
);
2438 int update_inode_page(struct inode
*inode
);
2439 int f2fs_write_inode(struct inode
*inode
, struct writeback_control
*wbc
);
2440 void f2fs_evict_inode(struct inode
*inode
);
2441 void handle_failed_inode(struct inode
*inode
);
2446 struct dentry
*f2fs_get_parent(struct dentry
*child
);
2451 void set_de_type(struct f2fs_dir_entry
*de
, umode_t mode
);
2452 unsigned char get_de_type(struct f2fs_dir_entry
*de
);
2453 struct f2fs_dir_entry
*find_target_dentry(struct fscrypt_name
*fname
,
2454 f2fs_hash_t namehash
, int *max_slots
,
2455 struct f2fs_dentry_ptr
*d
);
2456 int f2fs_fill_dentries(struct dir_context
*ctx
, struct f2fs_dentry_ptr
*d
,
2457 unsigned int start_pos
, struct fscrypt_str
*fstr
);
2458 void do_make_empty_dir(struct inode
*inode
, struct inode
*parent
,
2459 struct f2fs_dentry_ptr
*d
);
2460 struct page
*init_inode_metadata(struct inode
*inode
, struct inode
*dir
,
2461 const struct qstr
*new_name
,
2462 const struct qstr
*orig_name
, struct page
*dpage
);
2463 void update_parent_metadata(struct inode
*dir
, struct inode
*inode
,
2464 unsigned int current_depth
);
2465 int room_for_filename(const void *bitmap
, int slots
, int max_slots
);
2466 void f2fs_drop_nlink(struct inode
*dir
, struct inode
*inode
);
2467 struct f2fs_dir_entry
*__f2fs_find_entry(struct inode
*dir
,
2468 struct fscrypt_name
*fname
, struct page
**res_page
);
2469 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*dir
,
2470 const struct qstr
*child
, struct page
**res_page
);
2471 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*dir
, struct page
**p
);
2472 ino_t
f2fs_inode_by_name(struct inode
*dir
, const struct qstr
*qstr
,
2473 struct page
**page
);
2474 void f2fs_set_link(struct inode
*dir
, struct f2fs_dir_entry
*de
,
2475 struct page
*page
, struct inode
*inode
);
2476 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*d
,
2477 const struct qstr
*name
, f2fs_hash_t name_hash
,
2478 unsigned int bit_pos
);
2479 int f2fs_add_regular_entry(struct inode
*dir
, const struct qstr
*new_name
,
2480 const struct qstr
*orig_name
,
2481 struct inode
*inode
, nid_t ino
, umode_t mode
);
2482 int __f2fs_do_add_link(struct inode
*dir
, struct fscrypt_name
*fname
,
2483 struct inode
*inode
, nid_t ino
, umode_t mode
);
2484 int __f2fs_add_link(struct inode
*dir
, const struct qstr
*name
,
2485 struct inode
*inode
, nid_t ino
, umode_t mode
);
2486 void f2fs_delete_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2487 struct inode
*dir
, struct inode
*inode
);
2488 int f2fs_do_tmpfile(struct inode
*inode
, struct inode
*dir
);
2489 bool f2fs_empty_dir(struct inode
*dir
);
2491 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
2493 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
2494 inode
, inode
->i_ino
, inode
->i_mode
);
2500 int f2fs_inode_dirtied(struct inode
*inode
, bool sync
);
2501 void f2fs_inode_synced(struct inode
*inode
);
2502 void f2fs_enable_quota_files(struct f2fs_sb_info
*sbi
);
2503 void f2fs_quota_off_umount(struct super_block
*sb
);
2504 int f2fs_commit_super(struct f2fs_sb_info
*sbi
, bool recover
);
2505 int f2fs_sync_fs(struct super_block
*sb
, int sync
);
2506 extern __printf(3, 4)
2507 void f2fs_msg(struct super_block
*sb
, const char *level
, const char *fmt
, ...);
2508 int sanity_check_ckpt(struct f2fs_sb_info
*sbi
);
2513 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*name_info
,
2514 struct fscrypt_name
*fname
);
2519 struct dnode_of_data
;
2522 int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
);
2523 bool available_free_memory(struct f2fs_sb_info
*sbi
, int type
);
2524 int need_dentry_mark(struct f2fs_sb_info
*sbi
, nid_t nid
);
2525 bool is_checkpointed_node(struct f2fs_sb_info
*sbi
, nid_t nid
);
2526 bool need_inode_block_update(struct f2fs_sb_info
*sbi
, nid_t ino
);
2527 void get_node_info(struct f2fs_sb_info
*sbi
, nid_t nid
, struct node_info
*ni
);
2528 pgoff_t
get_next_page_offset(struct dnode_of_data
*dn
, pgoff_t pgofs
);
2529 int get_dnode_of_data(struct dnode_of_data
*dn
, pgoff_t index
, int mode
);
2530 int truncate_inode_blocks(struct inode
*inode
, pgoff_t from
);
2531 int truncate_xattr_node(struct inode
*inode
, struct page
*page
);
2532 int wait_on_node_pages_writeback(struct f2fs_sb_info
*sbi
, nid_t ino
);
2533 int remove_inode_page(struct inode
*inode
);
2534 struct page
*new_inode_page(struct inode
*inode
);
2535 struct page
*new_node_page(struct dnode_of_data
*dn
, unsigned int ofs
);
2536 void ra_node_page(struct f2fs_sb_info
*sbi
, nid_t nid
);
2537 struct page
*get_node_page(struct f2fs_sb_info
*sbi
, pgoff_t nid
);
2538 struct page
*get_node_page_ra(struct page
*parent
, int start
);
2539 void move_node_page(struct page
*node_page
, int gc_type
);
2540 int fsync_node_pages(struct f2fs_sb_info
*sbi
, struct inode
*inode
,
2541 struct writeback_control
*wbc
, bool atomic
);
2542 int sync_node_pages(struct f2fs_sb_info
*sbi
, struct writeback_control
*wbc
,
2543 bool do_balance
, enum iostat_type io_type
);
2544 void build_free_nids(struct f2fs_sb_info
*sbi
, bool sync
, bool mount
);
2545 bool alloc_nid(struct f2fs_sb_info
*sbi
, nid_t
*nid
);
2546 void alloc_nid_done(struct f2fs_sb_info
*sbi
, nid_t nid
);
2547 void alloc_nid_failed(struct f2fs_sb_info
*sbi
, nid_t nid
);
2548 int try_to_free_nids(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2549 void recover_inline_xattr(struct inode
*inode
, struct page
*page
);
2550 int recover_xattr_data(struct inode
*inode
, struct page
*page
,
2552 int recover_inode_page(struct f2fs_sb_info
*sbi
, struct page
*page
);
2553 int restore_node_summary(struct f2fs_sb_info
*sbi
,
2554 unsigned int segno
, struct f2fs_summary_block
*sum
);
2555 void flush_nat_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2556 int build_node_manager(struct f2fs_sb_info
*sbi
);
2557 void destroy_node_manager(struct f2fs_sb_info
*sbi
);
2558 int __init
create_node_manager_caches(void);
2559 void destroy_node_manager_caches(void);
2564 bool need_SSR(struct f2fs_sb_info
*sbi
);
2565 void register_inmem_page(struct inode
*inode
, struct page
*page
);
2566 void drop_inmem_pages(struct inode
*inode
);
2567 void drop_inmem_page(struct inode
*inode
, struct page
*page
);
2568 int commit_inmem_pages(struct inode
*inode
);
2569 void f2fs_balance_fs(struct f2fs_sb_info
*sbi
, bool need
);
2570 void f2fs_balance_fs_bg(struct f2fs_sb_info
*sbi
);
2571 int f2fs_issue_flush(struct f2fs_sb_info
*sbi
);
2572 int create_flush_cmd_control(struct f2fs_sb_info
*sbi
);
2573 void destroy_flush_cmd_control(struct f2fs_sb_info
*sbi
, bool free
);
2574 void invalidate_blocks(struct f2fs_sb_info
*sbi
, block_t addr
);
2575 bool is_checkpointed_data(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2576 void refresh_sit_entry(struct f2fs_sb_info
*sbi
, block_t old
, block_t
new);
2577 void stop_discard_thread(struct f2fs_sb_info
*sbi
);
2578 void f2fs_wait_discard_bios(struct f2fs_sb_info
*sbi
, bool umount
);
2579 void clear_prefree_segments(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2580 void release_discard_addrs(struct f2fs_sb_info
*sbi
);
2581 int npages_for_summary_flush(struct f2fs_sb_info
*sbi
, bool for_ra
);
2582 void allocate_new_segments(struct f2fs_sb_info
*sbi
);
2583 int f2fs_trim_fs(struct f2fs_sb_info
*sbi
, struct fstrim_range
*range
);
2584 bool exist_trim_candidates(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2585 struct page
*get_sum_page(struct f2fs_sb_info
*sbi
, unsigned int segno
);
2586 void update_meta_page(struct f2fs_sb_info
*sbi
, void *src
, block_t blk_addr
);
2587 void write_meta_page(struct f2fs_sb_info
*sbi
, struct page
*page
,
2588 enum iostat_type io_type
);
2589 void write_node_page(unsigned int nid
, struct f2fs_io_info
*fio
);
2590 void write_data_page(struct dnode_of_data
*dn
, struct f2fs_io_info
*fio
);
2591 int rewrite_data_page(struct f2fs_io_info
*fio
);
2592 void __f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct f2fs_summary
*sum
,
2593 block_t old_blkaddr
, block_t new_blkaddr
,
2594 bool recover_curseg
, bool recover_newaddr
);
2595 void f2fs_replace_block(struct f2fs_sb_info
*sbi
, struct dnode_of_data
*dn
,
2596 block_t old_addr
, block_t new_addr
,
2597 unsigned char version
, bool recover_curseg
,
2598 bool recover_newaddr
);
2599 void allocate_data_block(struct f2fs_sb_info
*sbi
, struct page
*page
,
2600 block_t old_blkaddr
, block_t
*new_blkaddr
,
2601 struct f2fs_summary
*sum
, int type
,
2602 struct f2fs_io_info
*fio
, bool add_list
);
2603 void f2fs_wait_on_page_writeback(struct page
*page
,
2604 enum page_type type
, bool ordered
);
2605 void f2fs_wait_on_block_writeback(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2606 void write_data_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2607 void write_node_summaries(struct f2fs_sb_info
*sbi
, block_t start_blk
);
2608 int lookup_journal_in_cursum(struct f2fs_journal
*journal
, int type
,
2609 unsigned int val
, int alloc
);
2610 void flush_sit_entries(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2611 int build_segment_manager(struct f2fs_sb_info
*sbi
);
2612 void destroy_segment_manager(struct f2fs_sb_info
*sbi
);
2613 int __init
create_segment_manager_caches(void);
2614 void destroy_segment_manager_caches(void);
2619 void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
, bool end_io
);
2620 struct page
*grab_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2621 struct page
*get_meta_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2622 struct page
*get_tmp_page(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2623 bool f2fs_is_valid_blkaddr(struct f2fs_sb_info
*sbi
,
2624 block_t blkaddr
, int type
);
2625 int ra_meta_pages(struct f2fs_sb_info
*sbi
, block_t start
, int nrpages
,
2626 int type
, bool sync
);
2627 void ra_meta_pages_cond(struct f2fs_sb_info
*sbi
, pgoff_t index
);
2628 long sync_meta_pages(struct f2fs_sb_info
*sbi
, enum page_type type
,
2629 long nr_to_write
, enum iostat_type io_type
);
2630 void add_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2631 void remove_ino_entry(struct f2fs_sb_info
*sbi
, nid_t ino
, int type
);
2632 void release_ino_entry(struct f2fs_sb_info
*sbi
, bool all
);
2633 bool exist_written_data(struct f2fs_sb_info
*sbi
, nid_t ino
, int mode
);
2634 int f2fs_sync_inode_meta(struct f2fs_sb_info
*sbi
);
2635 int acquire_orphan_inode(struct f2fs_sb_info
*sbi
);
2636 void release_orphan_inode(struct f2fs_sb_info
*sbi
);
2637 void add_orphan_inode(struct inode
*inode
);
2638 void remove_orphan_inode(struct f2fs_sb_info
*sbi
, nid_t ino
);
2639 int recover_orphan_inodes(struct f2fs_sb_info
*sbi
);
2640 int get_valid_checkpoint(struct f2fs_sb_info
*sbi
);
2641 void update_dirty_page(struct inode
*inode
, struct page
*page
);
2642 void remove_dirty_inode(struct inode
*inode
);
2643 int sync_dirty_inodes(struct f2fs_sb_info
*sbi
, enum inode_type type
);
2644 int write_checkpoint(struct f2fs_sb_info
*sbi
, struct cp_control
*cpc
);
2645 void init_ino_entry_info(struct f2fs_sb_info
*sbi
);
2646 int __init
create_checkpoint_caches(void);
2647 void destroy_checkpoint_caches(void);
2652 void f2fs_submit_merged_write(struct f2fs_sb_info
*sbi
, enum page_type type
);
2653 void f2fs_submit_merged_write_cond(struct f2fs_sb_info
*sbi
,
2654 struct inode
*inode
, nid_t ino
, pgoff_t idx
,
2655 enum page_type type
);
2656 void f2fs_flush_merged_writes(struct f2fs_sb_info
*sbi
);
2657 int f2fs_submit_page_bio(struct f2fs_io_info
*fio
);
2658 int f2fs_submit_page_write(struct f2fs_io_info
*fio
);
2659 struct block_device
*f2fs_target_device(struct f2fs_sb_info
*sbi
,
2660 block_t blk_addr
, struct bio
*bio
);
2661 int f2fs_target_device_index(struct f2fs_sb_info
*sbi
, block_t blkaddr
);
2662 void set_data_blkaddr(struct dnode_of_data
*dn
);
2663 void f2fs_update_data_blkaddr(struct dnode_of_data
*dn
, block_t blkaddr
);
2664 int reserve_new_blocks(struct dnode_of_data
*dn
, blkcnt_t count
);
2665 int reserve_new_block(struct dnode_of_data
*dn
);
2666 int f2fs_get_block(struct dnode_of_data
*dn
, pgoff_t index
);
2667 int f2fs_preallocate_blocks(struct kiocb
*iocb
, struct iov_iter
*from
);
2668 int f2fs_reserve_block(struct dnode_of_data
*dn
, pgoff_t index
);
2669 struct page
*get_read_data_page(struct inode
*inode
, pgoff_t index
,
2670 int op_flags
, bool for_write
);
2671 struct page
*find_data_page(struct inode
*inode
, pgoff_t index
);
2672 struct page
*get_lock_data_page(struct inode
*inode
, pgoff_t index
,
2674 struct page
*get_new_data_page(struct inode
*inode
,
2675 struct page
*ipage
, pgoff_t index
, bool new_i_size
);
2676 int do_write_data_page(struct f2fs_io_info
*fio
);
2677 int f2fs_map_blocks(struct inode
*inode
, struct f2fs_map_blocks
*map
,
2678 int create
, int flag
);
2679 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*fieinfo
,
2680 u64 start
, u64 len
);
2681 void f2fs_set_page_dirty_nobuffers(struct page
*page
);
2682 int __f2fs_write_data_pages(struct address_space
*mapping
,
2683 struct writeback_control
*wbc
,
2684 enum iostat_type io_type
);
2685 void f2fs_invalidate_page(struct page
*page
, unsigned int offset
,
2686 unsigned int length
);
2687 int f2fs_release_page(struct page
*page
, gfp_t wait
);
2688 #ifdef CONFIG_MIGRATION
2689 int f2fs_migrate_page(struct address_space
*mapping
, struct page
*newpage
,
2690 struct page
*page
, enum migrate_mode mode
);
2696 int start_gc_thread(struct f2fs_sb_info
*sbi
);
2697 void stop_gc_thread(struct f2fs_sb_info
*sbi
);
2698 block_t
start_bidx_of_node(unsigned int node_ofs
, struct inode
*inode
);
2699 int f2fs_gc(struct f2fs_sb_info
*sbi
, bool sync
, bool background
,
2700 unsigned int segno
);
2701 void build_gc_manager(struct f2fs_sb_info
*sbi
);
2706 int recover_fsync_data(struct f2fs_sb_info
*sbi
, bool check_only
);
2707 bool space_for_roll_forward(struct f2fs_sb_info
*sbi
);
2712 #ifdef CONFIG_F2FS_STAT_FS
2713 struct f2fs_stat_info
{
2714 struct list_head stat_list
;
2715 struct f2fs_sb_info
*sbi
;
2716 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
2717 int main_area_segs
, main_area_sections
, main_area_zones
;
2718 unsigned long long hit_largest
, hit_cached
, hit_rbtree
;
2719 unsigned long long hit_total
, total_ext
;
2720 int ext_tree
, zombie_tree
, ext_node
;
2721 int ndirty_node
, ndirty_dent
, ndirty_meta
, ndirty_data
, ndirty_imeta
;
2723 unsigned int ndirty_dirs
, ndirty_files
, ndirty_all
;
2724 int nats
, dirty_nats
, sits
, dirty_sits
;
2725 int free_nids
, avail_nids
, alloc_nids
;
2726 int total_count
, utilization
;
2727 int bg_gc
, nr_wb_cp_data
, nr_wb_data
;
2728 int nr_flushing
, nr_flushed
, nr_discarding
, nr_discarded
;
2730 unsigned int undiscard_blks
;
2731 int inline_xattr
, inline_inode
, inline_dir
, append
, update
, orphans
;
2732 int aw_cnt
, max_aw_cnt
, vw_cnt
, max_vw_cnt
;
2733 unsigned int valid_count
, valid_node_count
, valid_inode_count
, discard_blks
;
2734 unsigned int bimodal
, avg_vblocks
;
2735 int util_free
, util_valid
, util_invalid
;
2736 int rsvd_segs
, overp_segs
;
2737 int dirty_count
, node_pages
, meta_pages
;
2738 int prefree_count
, call_count
, cp_count
, bg_cp_count
;
2739 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
2740 int bg_node_segs
, bg_data_segs
;
2741 int tot_blks
, data_blks
, node_blks
;
2742 int bg_data_blks
, bg_node_blks
;
2743 int curseg
[NR_CURSEG_TYPE
];
2744 int cursec
[NR_CURSEG_TYPE
];
2745 int curzone
[NR_CURSEG_TYPE
];
2747 unsigned int segment_count
[2];
2748 unsigned int block_count
[2];
2749 unsigned int inplace_count
;
2750 unsigned long long base_mem
, cache_mem
, page_mem
;
2753 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
2755 return (struct f2fs_stat_info
*)sbi
->stat_info
;
2758 #define stat_inc_cp_count(si) ((si)->cp_count++)
2759 #define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
2760 #define stat_inc_call_count(si) ((si)->call_count++)
2761 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
2762 #define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
2763 #define stat_dec_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]--)
2764 #define stat_inc_total_hit(sbi) (atomic64_inc(&(sbi)->total_hit_ext))
2765 #define stat_inc_rbtree_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_rbtree))
2766 #define stat_inc_largest_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_largest))
2767 #define stat_inc_cached_node_hit(sbi) (atomic64_inc(&(sbi)->read_hit_cached))
2768 #define stat_inc_inline_xattr(inode) \
2770 if (f2fs_has_inline_xattr(inode)) \
2771 (atomic_inc(&F2FS_I_SB(inode)->inline_xattr)); \
2773 #define stat_dec_inline_xattr(inode) \
2775 if (f2fs_has_inline_xattr(inode)) \
2776 (atomic_dec(&F2FS_I_SB(inode)->inline_xattr)); \
2778 #define stat_inc_inline_inode(inode) \
2780 if (f2fs_has_inline_data(inode)) \
2781 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
2783 #define stat_dec_inline_inode(inode) \
2785 if (f2fs_has_inline_data(inode)) \
2786 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
2788 #define stat_inc_inline_dir(inode) \
2790 if (f2fs_has_inline_dentry(inode)) \
2791 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
2793 #define stat_dec_inline_dir(inode) \
2795 if (f2fs_has_inline_dentry(inode)) \
2796 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
2798 #define stat_inc_seg_type(sbi, curseg) \
2799 ((sbi)->segment_count[(curseg)->alloc_type]++)
2800 #define stat_inc_block_count(sbi, curseg) \
2801 ((sbi)->block_count[(curseg)->alloc_type]++)
2802 #define stat_inc_inplace_blocks(sbi) \
2803 (atomic_inc(&(sbi)->inplace_count))
2804 #define stat_inc_atomic_write(inode) \
2805 (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
2806 #define stat_dec_atomic_write(inode) \
2807 (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
2808 #define stat_update_max_atomic_write(inode) \
2810 int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
2811 int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
2813 atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
2815 #define stat_inc_volatile_write(inode) \
2816 (atomic_inc(&F2FS_I_SB(inode)->vw_cnt))
2817 #define stat_dec_volatile_write(inode) \
2818 (atomic_dec(&F2FS_I_SB(inode)->vw_cnt))
2819 #define stat_update_max_volatile_write(inode) \
2821 int cur = atomic_read(&F2FS_I_SB(inode)->vw_cnt); \
2822 int max = atomic_read(&F2FS_I_SB(inode)->max_vw_cnt); \
2824 atomic_set(&F2FS_I_SB(inode)->max_vw_cnt, cur); \
2826 #define stat_inc_seg_count(sbi, type, gc_type) \
2828 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2830 if ((type) == SUM_TYPE_DATA) { \
2832 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
2835 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
2839 #define stat_inc_tot_blk_count(si, blks) \
2840 ((si)->tot_blks += (blks))
2842 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
2844 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2845 stat_inc_tot_blk_count(si, blks); \
2846 si->data_blks += (blks); \
2847 si->bg_data_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2850 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
2852 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
2853 stat_inc_tot_blk_count(si, blks); \
2854 si->node_blks += (blks); \
2855 si->bg_node_blks += ((gc_type) == BG_GC) ? (blks) : 0; \
2858 int f2fs_build_stats(struct f2fs_sb_info
*sbi
);
2859 void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
);
2860 int __init
f2fs_create_root_stats(void);
2861 void f2fs_destroy_root_stats(void);
2863 #define stat_inc_cp_count(si) do { } while (0)
2864 #define stat_inc_bg_cp_count(si) do { } while (0)
2865 #define stat_inc_call_count(si) do { } while (0)
2866 #define stat_inc_bggc_count(si) do { } while (0)
2867 #define stat_inc_dirty_inode(sbi, type) do { } while (0)
2868 #define stat_dec_dirty_inode(sbi, type) do { } while (0)
2869 #define stat_inc_total_hit(sb) do { } while (0)
2870 #define stat_inc_rbtree_node_hit(sb) do { } while (0)
2871 #define stat_inc_largest_node_hit(sbi) do { } while (0)
2872 #define stat_inc_cached_node_hit(sbi) do { } while (0)
2873 #define stat_inc_inline_xattr(inode) do { } while (0)
2874 #define stat_dec_inline_xattr(inode) do { } while (0)
2875 #define stat_inc_inline_inode(inode) do { } while (0)
2876 #define stat_dec_inline_inode(inode) do { } while (0)
2877 #define stat_inc_inline_dir(inode) do { } while (0)
2878 #define stat_dec_inline_dir(inode) do { } while (0)
2879 #define stat_inc_atomic_write(inode) do { } while (0)
2880 #define stat_dec_atomic_write(inode) do { } while (0)
2881 #define stat_update_max_atomic_write(inode) do { } while (0)
2882 #define stat_inc_volatile_write(inode) do { } while (0)
2883 #define stat_dec_volatile_write(inode) do { } while (0)
2884 #define stat_update_max_volatile_write(inode) do { } while (0)
2885 #define stat_inc_seg_type(sbi, curseg) do { } while (0)
2886 #define stat_inc_block_count(sbi, curseg) do { } while (0)
2887 #define stat_inc_inplace_blocks(sbi) do { } while (0)
2888 #define stat_inc_seg_count(sbi, type, gc_type) do { } while (0)
2889 #define stat_inc_tot_blk_count(si, blks) do { } while (0)
2890 #define stat_inc_data_blk_count(sbi, blks, gc_type) do { } while (0)
2891 #define stat_inc_node_blk_count(sbi, blks, gc_type) do { } while (0)
2893 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
2894 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
2895 static inline int __init
f2fs_create_root_stats(void) { return 0; }
2896 static inline void f2fs_destroy_root_stats(void) { }
2899 extern const struct file_operations f2fs_dir_operations
;
2900 extern const struct file_operations f2fs_file_operations
;
2901 extern const struct inode_operations f2fs_file_inode_operations
;
2902 extern const struct address_space_operations f2fs_dblock_aops
;
2903 extern const struct address_space_operations f2fs_node_aops
;
2904 extern const struct address_space_operations f2fs_meta_aops
;
2905 extern const struct inode_operations f2fs_dir_inode_operations
;
2906 extern const struct inode_operations f2fs_symlink_inode_operations
;
2907 extern const struct inode_operations f2fs_encrypted_symlink_inode_operations
;
2908 extern const struct inode_operations f2fs_special_inode_operations
;
2909 extern struct kmem_cache
*inode_entry_slab
;
2914 bool f2fs_may_inline_data(struct inode
*inode
);
2915 bool f2fs_may_inline_dentry(struct inode
*inode
);
2916 void read_inline_data(struct page
*page
, struct page
*ipage
);
2917 void truncate_inline_inode(struct inode
*inode
, struct page
*ipage
, u64 from
);
2918 int f2fs_read_inline_data(struct inode
*inode
, struct page
*page
);
2919 int f2fs_convert_inline_page(struct dnode_of_data
*dn
, struct page
*page
);
2920 int f2fs_convert_inline_inode(struct inode
*inode
);
2921 int f2fs_write_inline_data(struct inode
*inode
, struct page
*page
);
2922 bool recover_inline_data(struct inode
*inode
, struct page
*npage
);
2923 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*dir
,
2924 struct fscrypt_name
*fname
, struct page
**res_page
);
2925 int make_empty_inline_dir(struct inode
*inode
, struct inode
*parent
,
2926 struct page
*ipage
);
2927 int f2fs_add_inline_entry(struct inode
*dir
, const struct qstr
*new_name
,
2928 const struct qstr
*orig_name
,
2929 struct inode
*inode
, nid_t ino
, umode_t mode
);
2930 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*dentry
, struct page
*page
,
2931 struct inode
*dir
, struct inode
*inode
);
2932 bool f2fs_empty_inline_dir(struct inode
*dir
);
2933 int f2fs_read_inline_dir(struct file
*file
, struct dir_context
*ctx
,
2934 struct fscrypt_str
*fstr
);
2935 int f2fs_inline_data_fiemap(struct inode
*inode
,
2936 struct fiemap_extent_info
*fieinfo
,
2937 __u64 start
, __u64 len
);
2942 unsigned long f2fs_shrink_count(struct shrinker
*shrink
,
2943 struct shrink_control
*sc
);
2944 unsigned long f2fs_shrink_scan(struct shrinker
*shrink
,
2945 struct shrink_control
*sc
);
2946 void f2fs_join_shrinker(struct f2fs_sb_info
*sbi
);
2947 void f2fs_leave_shrinker(struct f2fs_sb_info
*sbi
);
2952 struct rb_entry
*__lookup_rb_tree(struct rb_root
*root
,
2953 struct rb_entry
*cached_re
, unsigned int ofs
);
2954 struct rb_node
**__lookup_rb_tree_for_insert(struct f2fs_sb_info
*sbi
,
2955 struct rb_root
*root
, struct rb_node
**parent
,
2957 struct rb_entry
*__lookup_rb_tree_ret(struct rb_root
*root
,
2958 struct rb_entry
*cached_re
, unsigned int ofs
,
2959 struct rb_entry
**prev_entry
, struct rb_entry
**next_entry
,
2960 struct rb_node
***insert_p
, struct rb_node
**insert_parent
,
2962 bool __check_rb_tree_consistence(struct f2fs_sb_info
*sbi
,
2963 struct rb_root
*root
);
2964 unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info
*sbi
, int nr_shrink
);
2965 bool f2fs_init_extent_tree(struct inode
*inode
, struct f2fs_extent
*i_ext
);
2966 void f2fs_drop_extent_tree(struct inode
*inode
);
2967 unsigned int f2fs_destroy_extent_node(struct inode
*inode
);
2968 void f2fs_destroy_extent_tree(struct inode
*inode
);
2969 bool f2fs_lookup_extent_cache(struct inode
*inode
, pgoff_t pgofs
,
2970 struct extent_info
*ei
);
2971 void f2fs_update_extent_cache(struct dnode_of_data
*dn
);
2972 void f2fs_update_extent_cache_range(struct dnode_of_data
*dn
,
2973 pgoff_t fofs
, block_t blkaddr
, unsigned int len
);
2974 void init_extent_cache_info(struct f2fs_sb_info
*sbi
);
2975 int __init
create_extent_cache(void);
2976 void destroy_extent_cache(void);
2981 int __init
f2fs_init_sysfs(void);
2982 void f2fs_exit_sysfs(void);
2983 int f2fs_register_sysfs(struct f2fs_sb_info
*sbi
);
2984 void f2fs_unregister_sysfs(struct f2fs_sb_info
*sbi
);
2989 static inline bool f2fs_encrypted_inode(struct inode
*inode
)
2991 return file_is_encrypt(inode
);
2994 static inline bool f2fs_encrypted_file(struct inode
*inode
)
2996 return f2fs_encrypted_inode(inode
) && S_ISREG(inode
->i_mode
);
2999 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
3001 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3002 file_set_encrypt(inode
);
3006 static inline bool f2fs_bio_encrypted(struct bio
*bio
)
3008 return bio
->bi_private
!= NULL
;
3011 static inline int f2fs_sb_has_crypto(struct super_block
*sb
)
3013 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_ENCRYPT
);
3016 static inline int f2fs_sb_mounted_blkzoned(struct super_block
*sb
)
3018 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_BLKZONED
);
3021 static inline int f2fs_sb_has_extra_attr(struct super_block
*sb
)
3023 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_EXTRA_ATTR
);
3026 static inline int f2fs_sb_has_project_quota(struct super_block
*sb
)
3028 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_PRJQUOTA
);
3031 static inline int f2fs_sb_has_inode_chksum(struct super_block
*sb
)
3033 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_INODE_CHKSUM
);
3036 #ifdef CONFIG_BLK_DEV_ZONED
3037 static inline int get_blkz_type(struct f2fs_sb_info
*sbi
,
3038 struct block_device
*bdev
, block_t blkaddr
)
3040 unsigned int zno
= blkaddr
>> sbi
->log_blocks_per_blkz
;
3043 for (i
= 0; i
< sbi
->s_ndevs
; i
++)
3044 if (FDEV(i
).bdev
== bdev
)
3045 return FDEV(i
).blkz_type
[zno
];
3050 static inline bool f2fs_discard_en(struct f2fs_sb_info
*sbi
)
3052 struct request_queue
*q
= bdev_get_queue(sbi
->sb
->s_bdev
);
3054 return blk_queue_discard(q
) || f2fs_sb_mounted_blkzoned(sbi
->sb
);
3057 static inline void set_opt_mode(struct f2fs_sb_info
*sbi
, unsigned int mt
)
3059 clear_opt(sbi
, ADAPTIVE
);
3060 clear_opt(sbi
, LFS
);
3063 case F2FS_MOUNT_ADAPTIVE
:
3064 set_opt(sbi
, ADAPTIVE
);
3066 case F2FS_MOUNT_LFS
:
3072 static inline bool f2fs_may_encrypt(struct inode
*inode
)
3074 #ifdef CONFIG_F2FS_FS_ENCRYPTION
3075 umode_t mode
= inode
->i_mode
;
3077 return (S_ISREG(mode
) || S_ISDIR(mode
) || S_ISLNK(mode
));