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>
23 #ifdef CONFIG_F2FS_CHECK_FS
24 #define f2fs_bug_on(sbi, condition) BUG_ON(condition)
25 #define f2fs_down_write(x, y) down_write_nest_lock(x, y)
27 #define f2fs_bug_on(sbi, condition) \
29 if (unlikely(condition)) { \
31 set_sbi_flag(sbi, SBI_NEED_FSCK); \
34 #define f2fs_down_write(x, y) down_write(x)
40 #define F2FS_MOUNT_BG_GC 0x00000001
41 #define F2FS_MOUNT_DISABLE_ROLL_FORWARD 0x00000002
42 #define F2FS_MOUNT_DISCARD 0x00000004
43 #define F2FS_MOUNT_NOHEAP 0x00000008
44 #define F2FS_MOUNT_XATTR_USER 0x00000010
45 #define F2FS_MOUNT_POSIX_ACL 0x00000020
46 #define F2FS_MOUNT_DISABLE_EXT_IDENTIFY 0x00000040
47 #define F2FS_MOUNT_INLINE_XATTR 0x00000080
48 #define F2FS_MOUNT_INLINE_DATA 0x00000100
49 #define F2FS_MOUNT_INLINE_DENTRY 0x00000200
50 #define F2FS_MOUNT_FLUSH_MERGE 0x00000400
51 #define F2FS_MOUNT_NOBARRIER 0x00000800
52 #define F2FS_MOUNT_FASTBOOT 0x00001000
53 #define F2FS_MOUNT_EXTENT_CACHE 0x00002000
55 #define clear_opt(sbi, option) (sbi->mount_opt.opt &= ~F2FS_MOUNT_##option)
56 #define set_opt(sbi, option) (sbi->mount_opt.opt |= F2FS_MOUNT_##option)
57 #define test_opt(sbi, option) (sbi->mount_opt.opt & F2FS_MOUNT_##option)
59 #define ver_after(a, b) (typecheck(unsigned long long, a) && \
60 typecheck(unsigned long long, b) && \
61 ((long long)((a) - (b)) > 0))
63 typedef u32 block_t
; /*
64 * should not change u32, since it is the on-disk block
65 * address format, __le32.
69 struct f2fs_mount_info
{
73 #define F2FS_FEATURE_ENCRYPT 0x0001
75 #define F2FS_HAS_FEATURE(sb, mask) \
76 ((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
77 #define F2FS_SET_FEATURE(sb, mask) \
78 F2FS_SB(sb)->raw_super->feature |= cpu_to_le32(mask)
79 #define F2FS_CLEAR_FEATURE(sb, mask) \
80 F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)
82 #define CRCPOLY_LE 0xedb88320
84 static inline __u32
f2fs_crc32(void *buf
, size_t len
)
86 unsigned char *p
= (unsigned char *)buf
;
87 __u32 crc
= F2FS_SUPER_MAGIC
;
92 for (i
= 0; i
< 8; i
++)
93 crc
= (crc
>> 1) ^ ((crc
& 1) ? CRCPOLY_LE
: 0);
98 static inline bool f2fs_crc_valid(__u32 blk_crc
, void *buf
, size_t buf_size
)
100 return f2fs_crc32(buf
, buf_size
) == blk_crc
;
104 * For checkpoint manager
119 #define DEF_BATCHED_TRIM_SECTIONS 32
120 #define BATCHED_TRIM_SEGMENTS(sbi) \
121 (SM_I(sbi)->trim_sections * (sbi)->segs_per_sec)
122 #define BATCHED_TRIM_BLOCKS(sbi) \
123 (BATCHED_TRIM_SEGMENTS(sbi) << (sbi)->log_blocks_per_seg)
134 * For CP/NAT/SIT/SSA readahead
144 /* for the list of ino */
146 ORPHAN_INO
, /* for orphan ino list */
147 APPEND_INO
, /* for append ino list */
148 UPDATE_INO
, /* for update ino list */
149 MAX_INO_ENTRY
, /* max. list */
153 struct list_head list
; /* list head */
154 nid_t ino
; /* inode number */
158 * for the list of directory inodes or gc inodes.
159 * NOTE: there are two slab users for this structure, if we add/modify/delete
160 * fields in structure for one of slab users, it may affect fields or size of
161 * other one, in this condition, it's better to split both of slab and related
165 struct list_head list
; /* list head */
166 struct inode
*inode
; /* vfs inode pointer */
169 /* for the list of blockaddresses to be discarded */
170 struct discard_entry
{
171 struct list_head list
; /* list head */
172 block_t blkaddr
; /* block address to be discarded */
173 int len
; /* # of consecutive blocks of the discard */
176 /* for the list of fsync inodes, used only during recovery */
177 struct fsync_inode_entry
{
178 struct list_head list
; /* list head */
179 struct inode
*inode
; /* vfs inode pointer */
180 block_t blkaddr
; /* block address locating the last fsync */
181 block_t last_dentry
; /* block address locating the last dentry */
182 block_t last_inode
; /* block address locating the last inode */
185 #define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats))
186 #define sits_in_cursum(sum) (le16_to_cpu(sum->n_sits))
188 #define nat_in_journal(sum, i) (sum->nat_j.entries[i].ne)
189 #define nid_in_journal(sum, i) (sum->nat_j.entries[i].nid)
190 #define sit_in_journal(sum, i) (sum->sit_j.entries[i].se)
191 #define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno)
193 #define MAX_NAT_JENTRIES(sum) (NAT_JOURNAL_ENTRIES - nats_in_cursum(sum))
194 #define MAX_SIT_JENTRIES(sum) (SIT_JOURNAL_ENTRIES - sits_in_cursum(sum))
196 static inline int update_nats_in_cursum(struct f2fs_summary_block
*rs
, int i
)
198 int before
= nats_in_cursum(rs
);
199 rs
->n_nats
= cpu_to_le16(before
+ i
);
203 static inline int update_sits_in_cursum(struct f2fs_summary_block
*rs
, int i
)
205 int before
= sits_in_cursum(rs
);
206 rs
->n_sits
= cpu_to_le16(before
+ i
);
210 static inline bool __has_cursum_space(struct f2fs_summary_block
*sum
, int size
,
213 if (type
== NAT_JOURNAL
)
214 return size
<= MAX_NAT_JENTRIES(sum
);
215 return size
<= MAX_SIT_JENTRIES(sum
);
221 #define F2FS_IOC_GETFLAGS FS_IOC_GETFLAGS
222 #define F2FS_IOC_SETFLAGS FS_IOC_SETFLAGS
223 #define F2FS_IOC_GETVERSION FS_IOC_GETVERSION
225 #define F2FS_IOCTL_MAGIC 0xf5
226 #define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
227 #define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
228 #define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
229 #define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
230 #define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
233 * should be same as XFS_IOC_GOINGDOWN.
234 * Flags for going down operation used by FS_IOC_GOINGDOWN
236 #define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
237 #define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
238 #define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
239 #define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
241 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
243 * ioctl commands in 32 bit emulation
245 #define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
246 #define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
250 * For INODE and NODE manager
252 /* for directory operations */
253 struct f2fs_dentry_ptr
{
255 struct f2fs_dir_entry
*dentry
;
256 __u8 (*filename
)[F2FS_SLOT_LEN
];
260 static inline void make_dentry_ptr(struct f2fs_dentry_ptr
*d
,
264 struct f2fs_dentry_block
*t
= (struct f2fs_dentry_block
*)src
;
265 d
->max
= NR_DENTRY_IN_BLOCK
;
266 d
->bitmap
= &t
->dentry_bitmap
;
267 d
->dentry
= t
->dentry
;
268 d
->filename
= t
->filename
;
270 struct f2fs_inline_dentry
*t
= (struct f2fs_inline_dentry
*)src
;
271 d
->max
= NR_INLINE_DENTRY
;
272 d
->bitmap
= &t
->dentry_bitmap
;
273 d
->dentry
= t
->dentry
;
274 d
->filename
= t
->filename
;
279 * XATTR_NODE_OFFSET stores xattrs to one node block per file keeping -1
280 * as its node offset to distinguish from index node blocks.
281 * But some bits are used to mark the node block.
283 #define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \
286 ALLOC_NODE
, /* allocate a new node page if needed */
287 LOOKUP_NODE
, /* look up a node without readahead */
289 * look up a node with readahead called
294 #define F2FS_LINK_MAX 32000 /* maximum link count per file */
296 #define MAX_DIR_RA_PAGES 4 /* maximum ra pages of dir */
298 /* vector size for gang look-up from extent cache that consists of radix tree */
299 #define EXT_TREE_VEC_SIZE 64
301 /* for in-memory extent cache entry */
302 #define F2FS_MIN_EXTENT_LEN 64 /* minimum extent length */
304 /* number of extent info in extent cache we try to shrink */
305 #define EXTENT_CACHE_SHRINK_NUMBER 128
308 unsigned int fofs
; /* start offset in a file */
309 u32 blk
; /* start block address of the extent */
310 unsigned int len
; /* length of the extent */
314 struct rb_node rb_node
; /* rb node located in rb-tree */
315 struct list_head list
; /* node in global extent list of sbi */
316 struct extent_info ei
; /* extent info */
320 nid_t ino
; /* inode number */
321 struct rb_root root
; /* root of extent info rb-tree */
322 struct extent_node
*cached_en
; /* recently accessed extent node */
323 rwlock_t lock
; /* protect extent info rb-tree */
324 atomic_t refcount
; /* reference count of rb-tree */
325 unsigned int count
; /* # of extent node in rb-tree*/
329 * This structure is taken from ext4_map_blocks.
331 * Note that, however, f2fs uses NEW and MAPPED flags for f2fs_map_blocks().
333 #define F2FS_MAP_NEW (1 << BH_New)
334 #define F2FS_MAP_MAPPED (1 << BH_Mapped)
335 #define F2FS_MAP_UNWRITTEN (1 << BH_Unwritten)
336 #define F2FS_MAP_FLAGS (F2FS_MAP_NEW | F2FS_MAP_MAPPED |\
339 struct f2fs_map_blocks
{
343 unsigned int m_flags
;
347 * i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
349 #define FADVISE_COLD_BIT 0x01
350 #define FADVISE_LOST_PINO_BIT 0x02
351 #define FADVISE_ENCRYPT_BIT 0x04
353 #define file_is_cold(inode) is_file(inode, FADVISE_COLD_BIT)
354 #define file_wrong_pino(inode) is_file(inode, FADVISE_LOST_PINO_BIT)
355 #define file_set_cold(inode) set_file(inode, FADVISE_COLD_BIT)
356 #define file_lost_pino(inode) set_file(inode, FADVISE_LOST_PINO_BIT)
357 #define file_clear_cold(inode) clear_file(inode, FADVISE_COLD_BIT)
358 #define file_got_pino(inode) clear_file(inode, FADVISE_LOST_PINO_BIT)
359 #define file_is_encrypt(inode) is_file(inode, FADVISE_ENCRYPT_BIT)
360 #define file_set_encrypt(inode) set_file(inode, FADVISE_ENCRYPT_BIT)
361 #define file_clear_encrypt(inode) clear_file(inode, FADVISE_ENCRYPT_BIT)
363 /* Encryption algorithms */
364 #define F2FS_ENCRYPTION_MODE_INVALID 0
365 #define F2FS_ENCRYPTION_MODE_AES_256_XTS 1
366 #define F2FS_ENCRYPTION_MODE_AES_256_GCM 2
367 #define F2FS_ENCRYPTION_MODE_AES_256_CBC 3
368 #define F2FS_ENCRYPTION_MODE_AES_256_CTS 4
370 #define DEF_DIR_LEVEL 0
372 struct f2fs_inode_info
{
373 struct inode vfs_inode
; /* serve a vfs inode */
374 unsigned long i_flags
; /* keep an inode flags for ioctl */
375 unsigned char i_advise
; /* use to give file attribute hints */
376 unsigned char i_dir_level
; /* use for dentry level for large dir */
377 unsigned int i_current_depth
; /* use only in directory structure */
378 unsigned int i_pino
; /* parent inode number */
379 umode_t i_acl_mode
; /* keep file acl mode temporarily */
381 /* Use below internally in f2fs*/
382 unsigned long flags
; /* use to pass per-file flags */
383 struct rw_semaphore i_sem
; /* protect fi info */
384 atomic_t dirty_pages
; /* # of dirty pages */
385 f2fs_hash_t chash
; /* hash value of given file name */
386 unsigned int clevel
; /* maximum level of given file name */
387 nid_t i_xattr_nid
; /* node id that contains xattrs */
388 unsigned long long xattr_ver
; /* cp version of xattr modification */
389 struct extent_info ext
; /* in-memory extent cache entry */
390 rwlock_t ext_lock
; /* rwlock for single extent cache */
391 struct inode_entry
*dirty_dir
; /* the pointer of dirty dir */
393 struct radix_tree_root inmem_root
; /* radix tree for inmem pages */
394 struct list_head inmem_pages
; /* inmemory pages managed by f2fs */
395 struct mutex inmem_lock
; /* lock for inmemory pages */
397 #ifdef CONFIG_F2FS_FS_ENCRYPTION
398 /* Encryption params */
399 struct f2fs_crypt_info
*i_crypt_info
;
403 static inline void get_extent_info(struct extent_info
*ext
,
404 struct f2fs_extent i_ext
)
406 ext
->fofs
= le32_to_cpu(i_ext
.fofs
);
407 ext
->blk
= le32_to_cpu(i_ext
.blk
);
408 ext
->len
= le32_to_cpu(i_ext
.len
);
411 static inline void set_raw_extent(struct extent_info
*ext
,
412 struct f2fs_extent
*i_ext
)
414 i_ext
->fofs
= cpu_to_le32(ext
->fofs
);
415 i_ext
->blk
= cpu_to_le32(ext
->blk
);
416 i_ext
->len
= cpu_to_le32(ext
->len
);
419 static inline void set_extent_info(struct extent_info
*ei
, unsigned int fofs
,
420 u32 blk
, unsigned int len
)
427 static inline bool __is_extent_same(struct extent_info
*ei1
,
428 struct extent_info
*ei2
)
430 return (ei1
->fofs
== ei2
->fofs
&& ei1
->blk
== ei2
->blk
&&
431 ei1
->len
== ei2
->len
);
434 static inline bool __is_extent_mergeable(struct extent_info
*back
,
435 struct extent_info
*front
)
437 return (back
->fofs
+ back
->len
== front
->fofs
&&
438 back
->blk
+ back
->len
== front
->blk
);
441 static inline bool __is_back_mergeable(struct extent_info
*cur
,
442 struct extent_info
*back
)
444 return __is_extent_mergeable(back
, cur
);
447 static inline bool __is_front_mergeable(struct extent_info
*cur
,
448 struct extent_info
*front
)
450 return __is_extent_mergeable(cur
, front
);
453 struct f2fs_nm_info
{
454 block_t nat_blkaddr
; /* base disk address of NAT */
455 nid_t max_nid
; /* maximum possible node ids */
456 nid_t available_nids
; /* maximum available node ids */
457 nid_t next_scan_nid
; /* the next nid to be scanned */
458 unsigned int ram_thresh
; /* control the memory footprint */
460 /* NAT cache management */
461 struct radix_tree_root nat_root
;/* root of the nat entry cache */
462 struct radix_tree_root nat_set_root
;/* root of the nat set cache */
463 struct rw_semaphore nat_tree_lock
; /* protect nat_tree_lock */
464 struct list_head nat_entries
; /* cached nat entry list (clean) */
465 unsigned int nat_cnt
; /* the # of cached nat entries */
466 unsigned int dirty_nat_cnt
; /* total num of nat entries in set */
468 /* free node ids management */
469 struct radix_tree_root free_nid_root
;/* root of the free_nid cache */
470 struct list_head free_nid_list
; /* a list for free nids */
471 spinlock_t free_nid_list_lock
; /* protect free nid list */
472 unsigned int fcnt
; /* the number of free node id */
473 struct mutex build_lock
; /* lock for build free nids */
476 char *nat_bitmap
; /* NAT bitmap pointer */
477 int bitmap_size
; /* bitmap size */
481 * this structure is used as one of function parameters.
482 * all the information are dedicated to a given direct node block determined
483 * by the data offset in a file.
485 struct dnode_of_data
{
486 struct inode
*inode
; /* vfs inode pointer */
487 struct page
*inode_page
; /* its inode page, NULL is possible */
488 struct page
*node_page
; /* cached direct node page */
489 nid_t nid
; /* node id of the direct node block */
490 unsigned int ofs_in_node
; /* data offset in the node page */
491 bool inode_page_locked
; /* inode page is locked or not */
492 block_t data_blkaddr
; /* block address of the node block */
495 static inline void set_new_dnode(struct dnode_of_data
*dn
, struct inode
*inode
,
496 struct page
*ipage
, struct page
*npage
, nid_t nid
)
498 memset(dn
, 0, sizeof(*dn
));
500 dn
->inode_page
= ipage
;
501 dn
->node_page
= npage
;
508 * By default, there are 6 active log areas across the whole main area.
509 * When considering hot and cold data separation to reduce cleaning overhead,
510 * we split 3 for data logs and 3 for node logs as hot, warm, and cold types,
512 * In the current design, you should not change the numbers intentionally.
513 * Instead, as a mount option such as active_logs=x, you can use 2, 4, and 6
514 * logs individually according to the underlying devices. (default: 6)
515 * Just in case, on-disk layout covers maximum 16 logs that consist of 8 for
516 * data and 8 for node logs.
518 #define NR_CURSEG_DATA_TYPE (3)
519 #define NR_CURSEG_NODE_TYPE (3)
520 #define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
523 CURSEG_HOT_DATA
= 0, /* directory entry blocks */
524 CURSEG_WARM_DATA
, /* data blocks */
525 CURSEG_COLD_DATA
, /* multimedia or GCed data blocks */
526 CURSEG_HOT_NODE
, /* direct node blocks of directory files */
527 CURSEG_WARM_NODE
, /* direct node blocks of normal files */
528 CURSEG_COLD_NODE
, /* indirect node blocks */
530 CURSEG_DIRECT_IO
, /* to use for the direct IO path */
534 struct completion wait
;
535 struct llist_node llnode
;
539 struct flush_cmd_control
{
540 struct task_struct
*f2fs_issue_flush
; /* flush thread */
541 wait_queue_head_t flush_wait_queue
; /* waiting queue for wake-up */
542 struct llist_head issue_list
; /* list for command issue */
543 struct llist_node
*dispatch_list
; /* list for command dispatch */
546 struct f2fs_sm_info
{
547 struct sit_info
*sit_info
; /* whole segment information */
548 struct free_segmap_info
*free_info
; /* free segment information */
549 struct dirty_seglist_info
*dirty_info
; /* dirty segment information */
550 struct curseg_info
*curseg_array
; /* active segment information */
552 block_t seg0_blkaddr
; /* block address of 0'th segment */
553 block_t main_blkaddr
; /* start block address of main area */
554 block_t ssa_blkaddr
; /* start block address of SSA area */
556 unsigned int segment_count
; /* total # of segments */
557 unsigned int main_segments
; /* # of segments in main area */
558 unsigned int reserved_segments
; /* # of reserved segments */
559 unsigned int ovp_segments
; /* # of overprovision segments */
561 /* a threshold to reclaim prefree segments */
562 unsigned int rec_prefree_segments
;
564 /* for small discard management */
565 struct list_head discard_list
; /* 4KB discard list */
566 int nr_discards
; /* # of discards in the list */
567 int max_discards
; /* max. discards to be issued */
569 /* for batched trimming */
570 unsigned int trim_sections
; /* # of sections to trim */
572 struct list_head sit_entry_set
; /* sit entry set list */
574 unsigned int ipu_policy
; /* in-place-update policy */
575 unsigned int min_ipu_util
; /* in-place-update threshold */
576 unsigned int min_fsync_blocks
; /* threshold for fsync */
578 /* for flush command control */
579 struct flush_cmd_control
*cmd_control_info
;
587 * COUNT_TYPE for monitoring
589 * f2fs monitors the number of several block types such as on-writeback,
590 * dirty dentry blocks, dirty node blocks, and dirty meta blocks.
602 * The below are the page types of bios used in submit_bio().
603 * The available types are:
604 * DATA User data pages. It operates as async mode.
605 * NODE Node pages. It operates as async mode.
606 * META FS metadata pages such as SIT, NAT, CP.
607 * NR_PAGE_TYPE The number of page types.
608 * META_FLUSH Make sure the previous pages are written
609 * with waiting the bio's completion
610 * ... Only can be used with META.
612 #define PAGE_TYPE_OF_BIO(type) ((type) > META ? META : (type))
619 INMEM
, /* the below types are used by tracepoints only. */
625 struct f2fs_io_info
{
626 struct f2fs_sb_info
*sbi
; /* f2fs_sb_info pointer */
627 enum page_type type
; /* contains DATA/NODE/META/META_FLUSH */
628 int rw
; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
629 block_t blk_addr
; /* block address to be written */
630 struct page
*page
; /* page to be written */
633 #define is_read_io(rw) (((rw) & 1) == READ)
634 struct f2fs_bio_info
{
635 struct f2fs_sb_info
*sbi
; /* f2fs superblock */
636 struct bio
*bio
; /* bios to merge */
637 sector_t last_block_in_bio
; /* last block number */
638 struct f2fs_io_info fio
; /* store buffered io info. */
639 struct rw_semaphore io_rwsem
; /* blocking op for bio */
642 /* for inner inode cache management */
643 struct inode_management
{
644 struct radix_tree_root ino_root
; /* ino entry array */
645 spinlock_t ino_lock
; /* for ino entry lock */
646 struct list_head ino_list
; /* inode list head */
647 unsigned long ino_num
; /* number of entries */
650 /* For s_flag in struct f2fs_sb_info */
652 SBI_IS_DIRTY
, /* dirty flag for checkpoint */
653 SBI_IS_CLOSE
, /* specify unmounting */
654 SBI_NEED_FSCK
, /* need fsck.f2fs to fix */
655 SBI_POR_DOING
, /* recovery is doing or not */
658 struct f2fs_sb_info
{
659 struct super_block
*sb
; /* pointer to VFS super block */
660 struct proc_dir_entry
*s_proc
; /* proc entry */
661 struct buffer_head
*raw_super_buf
; /* buffer head of raw sb */
662 struct f2fs_super_block
*raw_super
; /* raw super block pointer */
663 int s_flag
; /* flags for sbi */
665 /* for node-related operations */
666 struct f2fs_nm_info
*nm_info
; /* node manager */
667 struct inode
*node_inode
; /* cache node blocks */
669 /* for segment-related operations */
670 struct f2fs_sm_info
*sm_info
; /* segment manager */
672 /* for bio operations */
673 struct f2fs_bio_info read_io
; /* for read bios */
674 struct f2fs_bio_info write_io
[NR_PAGE_TYPE
]; /* for write bios */
677 struct f2fs_checkpoint
*ckpt
; /* raw checkpoint pointer */
678 struct inode
*meta_inode
; /* cache meta blocks */
679 struct mutex cp_mutex
; /* checkpoint procedure lock */
680 struct rw_semaphore cp_rwsem
; /* blocking FS operations */
681 struct rw_semaphore node_write
; /* locking node writes */
682 struct mutex writepages
; /* mutex for writepages() */
683 wait_queue_head_t cp_wait
;
685 struct inode_management im
[MAX_INO_ENTRY
]; /* manage inode cache */
687 /* for orphan inode, use 0'th array */
688 unsigned int max_orphans
; /* max orphan inodes */
690 /* for directory inode management */
691 struct list_head dir_inode_list
; /* dir inode list */
692 spinlock_t dir_inode_lock
; /* for dir inode list lock */
694 /* for extent tree cache */
695 struct radix_tree_root extent_tree_root
;/* cache extent cache entries */
696 struct rw_semaphore extent_tree_lock
; /* locking extent radix tree */
697 struct list_head extent_list
; /* lru list for shrinker */
698 spinlock_t extent_lock
; /* locking extent lru list */
699 int total_ext_tree
; /* extent tree count */
700 atomic_t total_ext_node
; /* extent info count */
702 /* basic filesystem units */
703 unsigned int log_sectors_per_block
; /* log2 sectors per block */
704 unsigned int log_blocksize
; /* log2 block size */
705 unsigned int blocksize
; /* block size */
706 unsigned int root_ino_num
; /* root inode number*/
707 unsigned int node_ino_num
; /* node inode number*/
708 unsigned int meta_ino_num
; /* meta inode number*/
709 unsigned int log_blocks_per_seg
; /* log2 blocks per segment */
710 unsigned int blocks_per_seg
; /* blocks per segment */
711 unsigned int segs_per_sec
; /* segments per section */
712 unsigned int secs_per_zone
; /* sections per zone */
713 unsigned int total_sections
; /* total section count */
714 unsigned int total_node_count
; /* total node block count */
715 unsigned int total_valid_node_count
; /* valid node block count */
716 unsigned int total_valid_inode_count
; /* valid inode count */
717 int active_logs
; /* # of active logs */
718 int dir_level
; /* directory level */
720 block_t user_block_count
; /* # of user blocks */
721 block_t total_valid_block_count
; /* # of valid blocks */
722 block_t alloc_valid_block_count
; /* # of allocated blocks */
723 block_t discard_blks
; /* discard command candidats */
724 block_t last_valid_block_count
; /* for recovery */
725 u32 s_next_generation
; /* for NFS support */
726 atomic_t nr_pages
[NR_COUNT_TYPE
]; /* # of pages, see count_type */
728 struct f2fs_mount_info mount_opt
; /* mount options */
730 /* for cleaning operations */
731 struct mutex gc_mutex
; /* mutex for GC */
732 struct f2fs_gc_kthread
*gc_thread
; /* GC thread */
733 unsigned int cur_victim_sec
; /* current victim section num */
735 /* maximum # of trials to find a victim segment for SSR and GC */
736 unsigned int max_victim_search
;
739 * for stat information.
740 * one is for the LFS mode, and the other is for the SSR mode.
742 #ifdef CONFIG_F2FS_STAT_FS
743 struct f2fs_stat_info
*stat_info
; /* FS status information */
744 unsigned int segment_count
[2]; /* # of allocated segments */
745 unsigned int block_count
[2]; /* # of allocated blocks */
746 atomic_t inplace_count
; /* # of inplace update */
747 int total_hit_ext
, read_hit_ext
; /* extent cache hit ratio */
748 atomic_t inline_inode
; /* # of inline_data inodes */
749 atomic_t inline_dir
; /* # of inline_dentry inodes */
750 int bg_gc
; /* background gc calls */
751 unsigned int n_dirty_dirs
; /* # of dir inodes */
753 unsigned int last_victim
[2]; /* last victim segment # */
754 spinlock_t stat_lock
; /* lock for stat operations */
756 /* For sysfs suppport */
757 struct kobject s_kobj
;
758 struct completion s_kobj_unregister
;
764 static inline struct f2fs_inode_info
*F2FS_I(struct inode
*inode
)
766 return container_of(inode
, struct f2fs_inode_info
, vfs_inode
);
769 static inline struct f2fs_sb_info
*F2FS_SB(struct super_block
*sb
)
771 return sb
->s_fs_info
;
774 static inline struct f2fs_sb_info
*F2FS_I_SB(struct inode
*inode
)
776 return F2FS_SB(inode
->i_sb
);
779 static inline struct f2fs_sb_info
*F2FS_M_SB(struct address_space
*mapping
)
781 return F2FS_I_SB(mapping
->host
);
784 static inline struct f2fs_sb_info
*F2FS_P_SB(struct page
*page
)
786 return F2FS_M_SB(page
->mapping
);
789 static inline struct f2fs_super_block
*F2FS_RAW_SUPER(struct f2fs_sb_info
*sbi
)
791 return (struct f2fs_super_block
*)(sbi
->raw_super
);
794 static inline struct f2fs_checkpoint
*F2FS_CKPT(struct f2fs_sb_info
*sbi
)
796 return (struct f2fs_checkpoint
*)(sbi
->ckpt
);
799 static inline struct f2fs_node
*F2FS_NODE(struct page
*page
)
801 return (struct f2fs_node
*)page_address(page
);
804 static inline struct f2fs_inode
*F2FS_INODE(struct page
*page
)
806 return &((struct f2fs_node
*)page_address(page
))->i
;
809 static inline struct f2fs_nm_info
*NM_I(struct f2fs_sb_info
*sbi
)
811 return (struct f2fs_nm_info
*)(sbi
->nm_info
);
814 static inline struct f2fs_sm_info
*SM_I(struct f2fs_sb_info
*sbi
)
816 return (struct f2fs_sm_info
*)(sbi
->sm_info
);
819 static inline struct sit_info
*SIT_I(struct f2fs_sb_info
*sbi
)
821 return (struct sit_info
*)(SM_I(sbi
)->sit_info
);
824 static inline struct free_segmap_info
*FREE_I(struct f2fs_sb_info
*sbi
)
826 return (struct free_segmap_info
*)(SM_I(sbi
)->free_info
);
829 static inline struct dirty_seglist_info
*DIRTY_I(struct f2fs_sb_info
*sbi
)
831 return (struct dirty_seglist_info
*)(SM_I(sbi
)->dirty_info
);
834 static inline struct address_space
*META_MAPPING(struct f2fs_sb_info
*sbi
)
836 return sbi
->meta_inode
->i_mapping
;
839 static inline struct address_space
*NODE_MAPPING(struct f2fs_sb_info
*sbi
)
841 return sbi
->node_inode
->i_mapping
;
844 static inline bool is_sbi_flag_set(struct f2fs_sb_info
*sbi
, unsigned int type
)
846 return sbi
->s_flag
& (0x01 << type
);
849 static inline void set_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
851 sbi
->s_flag
|= (0x01 << type
);
854 static inline void clear_sbi_flag(struct f2fs_sb_info
*sbi
, unsigned int type
)
856 sbi
->s_flag
&= ~(0x01 << type
);
859 static inline unsigned long long cur_cp_version(struct f2fs_checkpoint
*cp
)
861 return le64_to_cpu(cp
->checkpoint_ver
);
864 static inline bool is_set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
866 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
867 return ckpt_flags
& f
;
870 static inline void set_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
872 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
874 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
877 static inline void clear_ckpt_flags(struct f2fs_checkpoint
*cp
, unsigned int f
)
879 unsigned int ckpt_flags
= le32_to_cpu(cp
->ckpt_flags
);
881 cp
->ckpt_flags
= cpu_to_le32(ckpt_flags
);
884 static inline void f2fs_lock_op(struct f2fs_sb_info
*sbi
)
886 down_read(&sbi
->cp_rwsem
);
889 static inline void f2fs_unlock_op(struct f2fs_sb_info
*sbi
)
891 up_read(&sbi
->cp_rwsem
);
894 static inline void f2fs_lock_all(struct f2fs_sb_info
*sbi
)
896 f2fs_down_write(&sbi
->cp_rwsem
, &sbi
->cp_mutex
);
899 static inline void f2fs_unlock_all(struct f2fs_sb_info
*sbi
)
901 up_write(&sbi
->cp_rwsem
);
904 static inline int __get_cp_reason(struct f2fs_sb_info
*sbi
)
906 int reason
= CP_SYNC
;
908 if (test_opt(sbi
, FASTBOOT
))
909 reason
= CP_FASTBOOT
;
910 if (is_sbi_flag_set(sbi
, SBI_IS_CLOSE
))
915 static inline bool __remain_node_summaries(int reason
)
917 return (reason
== CP_UMOUNT
|| reason
== CP_FASTBOOT
);
920 static inline bool __exist_node_summaries(struct f2fs_sb_info
*sbi
)
922 return (is_set_ckpt_flags(F2FS_CKPT(sbi
), CP_UMOUNT_FLAG
) ||
923 is_set_ckpt_flags(F2FS_CKPT(sbi
), CP_FASTBOOT_FLAG
));
927 * Check whether the given nid is within node id range.
929 static inline int check_nid_range(struct f2fs_sb_info
*sbi
, nid_t nid
)
931 if (unlikely(nid
< F2FS_ROOT_INO(sbi
)))
933 if (unlikely(nid
>= NM_I(sbi
)->max_nid
))
938 #define F2FS_DEFAULT_ALLOCATED_BLOCKS 1
941 * Check whether the inode has blocks or not
943 static inline int F2FS_HAS_BLOCKS(struct inode
*inode
)
945 if (F2FS_I(inode
)->i_xattr_nid
)
946 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
+ 1;
948 return inode
->i_blocks
> F2FS_DEFAULT_ALLOCATED_BLOCKS
;
951 static inline bool f2fs_has_xattr_block(unsigned int ofs
)
953 return ofs
== XATTR_NODE_OFFSET
;
956 static inline bool inc_valid_block_count(struct f2fs_sb_info
*sbi
,
957 struct inode
*inode
, blkcnt_t count
)
959 block_t valid_block_count
;
961 spin_lock(&sbi
->stat_lock
);
963 sbi
->total_valid_block_count
+ (block_t
)count
;
964 if (unlikely(valid_block_count
> sbi
->user_block_count
)) {
965 spin_unlock(&sbi
->stat_lock
);
968 inode
->i_blocks
+= count
;
969 sbi
->total_valid_block_count
= valid_block_count
;
970 sbi
->alloc_valid_block_count
+= (block_t
)count
;
971 spin_unlock(&sbi
->stat_lock
);
975 static inline void dec_valid_block_count(struct f2fs_sb_info
*sbi
,
979 spin_lock(&sbi
->stat_lock
);
980 f2fs_bug_on(sbi
, sbi
->total_valid_block_count
< (block_t
) count
);
981 f2fs_bug_on(sbi
, inode
->i_blocks
< count
);
982 inode
->i_blocks
-= count
;
983 sbi
->total_valid_block_count
-= (block_t
)count
;
984 spin_unlock(&sbi
->stat_lock
);
987 static inline void inc_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
989 atomic_inc(&sbi
->nr_pages
[count_type
]);
990 set_sbi_flag(sbi
, SBI_IS_DIRTY
);
993 static inline void inode_inc_dirty_pages(struct inode
*inode
)
995 atomic_inc(&F2FS_I(inode
)->dirty_pages
);
996 if (S_ISDIR(inode
->i_mode
))
997 inc_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_DENTS
);
1000 static inline void dec_page_count(struct f2fs_sb_info
*sbi
, int count_type
)
1002 atomic_dec(&sbi
->nr_pages
[count_type
]);
1005 static inline void inode_dec_dirty_pages(struct inode
*inode
)
1007 if (!S_ISDIR(inode
->i_mode
) && !S_ISREG(inode
->i_mode
))
1010 atomic_dec(&F2FS_I(inode
)->dirty_pages
);
1012 if (S_ISDIR(inode
->i_mode
))
1013 dec_page_count(F2FS_I_SB(inode
), F2FS_DIRTY_DENTS
);
1016 static inline int get_pages(struct f2fs_sb_info
*sbi
, int count_type
)
1018 return atomic_read(&sbi
->nr_pages
[count_type
]);
1021 static inline int get_dirty_pages(struct inode
*inode
)
1023 return atomic_read(&F2FS_I(inode
)->dirty_pages
);
1026 static inline int get_blocktype_secs(struct f2fs_sb_info
*sbi
, int block_type
)
1028 unsigned int pages_per_sec
= sbi
->segs_per_sec
*
1029 (1 << sbi
->log_blocks_per_seg
);
1030 return ((get_pages(sbi
, block_type
) + pages_per_sec
- 1)
1031 >> sbi
->log_blocks_per_seg
) / sbi
->segs_per_sec
;
1034 static inline block_t
valid_user_blocks(struct f2fs_sb_info
*sbi
)
1036 return sbi
->total_valid_block_count
;
1039 static inline unsigned long __bitmap_size(struct f2fs_sb_info
*sbi
, int flag
)
1041 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1043 /* return NAT or SIT bitmap */
1044 if (flag
== NAT_BITMAP
)
1045 return le32_to_cpu(ckpt
->nat_ver_bitmap_bytesize
);
1046 else if (flag
== SIT_BITMAP
)
1047 return le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
);
1052 static inline block_t
__cp_payload(struct f2fs_sb_info
*sbi
)
1054 return le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_payload
);
1057 static inline void *__bitmap_ptr(struct f2fs_sb_info
*sbi
, int flag
)
1059 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1062 if (__cp_payload(sbi
) > 0) {
1063 if (flag
== NAT_BITMAP
)
1064 return &ckpt
->sit_nat_version_bitmap
;
1066 return (unsigned char *)ckpt
+ F2FS_BLKSIZE
;
1068 offset
= (flag
== NAT_BITMAP
) ?
1069 le32_to_cpu(ckpt
->sit_ver_bitmap_bytesize
) : 0;
1070 return &ckpt
->sit_nat_version_bitmap
+ offset
;
1074 static inline block_t
__start_cp_addr(struct f2fs_sb_info
*sbi
)
1077 struct f2fs_checkpoint
*ckpt
= F2FS_CKPT(sbi
);
1078 unsigned long long ckpt_version
= cur_cp_version(ckpt
);
1080 start_addr
= le32_to_cpu(F2FS_RAW_SUPER(sbi
)->cp_blkaddr
);
1083 * odd numbered checkpoint should at cp segment 0
1084 * and even segment must be at cp segment 1
1086 if (!(ckpt_version
& 1))
1087 start_addr
+= sbi
->blocks_per_seg
;
1092 static inline block_t
__start_sum_addr(struct f2fs_sb_info
*sbi
)
1094 return le32_to_cpu(F2FS_CKPT(sbi
)->cp_pack_start_sum
);
1097 static inline bool inc_valid_node_count(struct f2fs_sb_info
*sbi
,
1098 struct inode
*inode
)
1100 block_t valid_block_count
;
1101 unsigned int valid_node_count
;
1103 spin_lock(&sbi
->stat_lock
);
1105 valid_block_count
= sbi
->total_valid_block_count
+ 1;
1106 if (unlikely(valid_block_count
> sbi
->user_block_count
)) {
1107 spin_unlock(&sbi
->stat_lock
);
1111 valid_node_count
= sbi
->total_valid_node_count
+ 1;
1112 if (unlikely(valid_node_count
> sbi
->total_node_count
)) {
1113 spin_unlock(&sbi
->stat_lock
);
1120 sbi
->alloc_valid_block_count
++;
1121 sbi
->total_valid_node_count
++;
1122 sbi
->total_valid_block_count
++;
1123 spin_unlock(&sbi
->stat_lock
);
1128 static inline void dec_valid_node_count(struct f2fs_sb_info
*sbi
,
1129 struct inode
*inode
)
1131 spin_lock(&sbi
->stat_lock
);
1133 f2fs_bug_on(sbi
, !sbi
->total_valid_block_count
);
1134 f2fs_bug_on(sbi
, !sbi
->total_valid_node_count
);
1135 f2fs_bug_on(sbi
, !inode
->i_blocks
);
1138 sbi
->total_valid_node_count
--;
1139 sbi
->total_valid_block_count
--;
1141 spin_unlock(&sbi
->stat_lock
);
1144 static inline unsigned int valid_node_count(struct f2fs_sb_info
*sbi
)
1146 return sbi
->total_valid_node_count
;
1149 static inline void inc_valid_inode_count(struct f2fs_sb_info
*sbi
)
1151 spin_lock(&sbi
->stat_lock
);
1152 f2fs_bug_on(sbi
, sbi
->total_valid_inode_count
== sbi
->total_node_count
);
1153 sbi
->total_valid_inode_count
++;
1154 spin_unlock(&sbi
->stat_lock
);
1157 static inline void dec_valid_inode_count(struct f2fs_sb_info
*sbi
)
1159 spin_lock(&sbi
->stat_lock
);
1160 f2fs_bug_on(sbi
, !sbi
->total_valid_inode_count
);
1161 sbi
->total_valid_inode_count
--;
1162 spin_unlock(&sbi
->stat_lock
);
1165 static inline unsigned int valid_inode_count(struct f2fs_sb_info
*sbi
)
1167 return sbi
->total_valid_inode_count
;
1170 static inline void f2fs_put_page(struct page
*page
, int unlock
)
1176 f2fs_bug_on(F2FS_P_SB(page
), !PageLocked(page
));
1179 page_cache_release(page
);
1182 static inline void f2fs_put_dnode(struct dnode_of_data
*dn
)
1185 f2fs_put_page(dn
->node_page
, 1);
1186 if (dn
->inode_page
&& dn
->node_page
!= dn
->inode_page
)
1187 f2fs_put_page(dn
->inode_page
, 0);
1188 dn
->node_page
= NULL
;
1189 dn
->inode_page
= NULL
;
1192 static inline struct kmem_cache
*f2fs_kmem_cache_create(const char *name
,
1195 return kmem_cache_create(name
, size
, 0, SLAB_RECLAIM_ACCOUNT
, NULL
);
1198 static inline void *f2fs_kmem_cache_alloc(struct kmem_cache
*cachep
,
1203 entry
= kmem_cache_alloc(cachep
, flags
);
1212 static inline void f2fs_radix_tree_insert(struct radix_tree_root
*root
,
1213 unsigned long index
, void *item
)
1215 while (radix_tree_insert(root
, index
, item
))
1219 #define RAW_IS_INODE(p) ((p)->footer.nid == (p)->footer.ino)
1221 static inline bool IS_INODE(struct page
*page
)
1223 struct f2fs_node
*p
= F2FS_NODE(page
);
1224 return RAW_IS_INODE(p
);
1227 static inline __le32
*blkaddr_in_node(struct f2fs_node
*node
)
1229 return RAW_IS_INODE(node
) ? node
->i
.i_addr
: node
->dn
.addr
;
1232 static inline block_t
datablock_addr(struct page
*node_page
,
1233 unsigned int offset
)
1235 struct f2fs_node
*raw_node
;
1237 raw_node
= F2FS_NODE(node_page
);
1238 addr_array
= blkaddr_in_node(raw_node
);
1239 return le32_to_cpu(addr_array
[offset
]);
1242 static inline int f2fs_test_bit(unsigned int nr
, char *addr
)
1247 mask
= 1 << (7 - (nr
& 0x07));
1248 return mask
& *addr
;
1251 static inline void f2fs_set_bit(unsigned int nr
, char *addr
)
1256 mask
= 1 << (7 - (nr
& 0x07));
1260 static inline void f2fs_clear_bit(unsigned int nr
, char *addr
)
1265 mask
= 1 << (7 - (nr
& 0x07));
1269 static inline int f2fs_test_and_set_bit(unsigned int nr
, char *addr
)
1275 mask
= 1 << (7 - (nr
& 0x07));
1281 static inline int f2fs_test_and_clear_bit(unsigned int nr
, char *addr
)
1287 mask
= 1 << (7 - (nr
& 0x07));
1293 static inline void f2fs_change_bit(unsigned int nr
, char *addr
)
1298 mask
= 1 << (7 - (nr
& 0x07));
1302 /* used for f2fs_inode_info->flags */
1304 FI_NEW_INODE
, /* indicate newly allocated inode */
1305 FI_DIRTY_INODE
, /* indicate inode is dirty or not */
1306 FI_DIRTY_DIR
, /* indicate directory has dirty pages */
1307 FI_INC_LINK
, /* need to increment i_nlink */
1308 FI_ACL_MODE
, /* indicate acl mode */
1309 FI_NO_ALLOC
, /* should not allocate any blocks */
1310 FI_UPDATE_DIR
, /* should update inode block for consistency */
1311 FI_DELAY_IPUT
, /* used for the recovery */
1312 FI_NO_EXTENT
, /* not to use the extent cache */
1313 FI_INLINE_XATTR
, /* used for inline xattr */
1314 FI_INLINE_DATA
, /* used for inline data*/
1315 FI_INLINE_DENTRY
, /* used for inline dentry */
1316 FI_APPEND_WRITE
, /* inode has appended data */
1317 FI_UPDATE_WRITE
, /* inode has in-place-update data */
1318 FI_NEED_IPU
, /* used for ipu per file */
1319 FI_ATOMIC_FILE
, /* indicate atomic file */
1320 FI_VOLATILE_FILE
, /* indicate volatile file */
1321 FI_FIRST_BLOCK_WRITTEN
, /* indicate #0 data block was written */
1322 FI_DROP_CACHE
, /* drop dirty page cache */
1323 FI_DATA_EXIST
, /* indicate data exists */
1324 FI_INLINE_DOTS
, /* indicate inline dot dentries */
1327 static inline void set_inode_flag(struct f2fs_inode_info
*fi
, int flag
)
1329 if (!test_bit(flag
, &fi
->flags
))
1330 set_bit(flag
, &fi
->flags
);
1333 static inline int is_inode_flag_set(struct f2fs_inode_info
*fi
, int flag
)
1335 return test_bit(flag
, &fi
->flags
);
1338 static inline void clear_inode_flag(struct f2fs_inode_info
*fi
, int flag
)
1340 if (test_bit(flag
, &fi
->flags
))
1341 clear_bit(flag
, &fi
->flags
);
1344 static inline void set_acl_inode(struct f2fs_inode_info
*fi
, umode_t mode
)
1346 fi
->i_acl_mode
= mode
;
1347 set_inode_flag(fi
, FI_ACL_MODE
);
1350 static inline void get_inline_info(struct f2fs_inode_info
*fi
,
1351 struct f2fs_inode
*ri
)
1353 if (ri
->i_inline
& F2FS_INLINE_XATTR
)
1354 set_inode_flag(fi
, FI_INLINE_XATTR
);
1355 if (ri
->i_inline
& F2FS_INLINE_DATA
)
1356 set_inode_flag(fi
, FI_INLINE_DATA
);
1357 if (ri
->i_inline
& F2FS_INLINE_DENTRY
)
1358 set_inode_flag(fi
, FI_INLINE_DENTRY
);
1359 if (ri
->i_inline
& F2FS_DATA_EXIST
)
1360 set_inode_flag(fi
, FI_DATA_EXIST
);
1361 if (ri
->i_inline
& F2FS_INLINE_DOTS
)
1362 set_inode_flag(fi
, FI_INLINE_DOTS
);
1365 static inline void set_raw_inline(struct f2fs_inode_info
*fi
,
1366 struct f2fs_inode
*ri
)
1370 if (is_inode_flag_set(fi
, FI_INLINE_XATTR
))
1371 ri
->i_inline
|= F2FS_INLINE_XATTR
;
1372 if (is_inode_flag_set(fi
, FI_INLINE_DATA
))
1373 ri
->i_inline
|= F2FS_INLINE_DATA
;
1374 if (is_inode_flag_set(fi
, FI_INLINE_DENTRY
))
1375 ri
->i_inline
|= F2FS_INLINE_DENTRY
;
1376 if (is_inode_flag_set(fi
, FI_DATA_EXIST
))
1377 ri
->i_inline
|= F2FS_DATA_EXIST
;
1378 if (is_inode_flag_set(fi
, FI_INLINE_DOTS
))
1379 ri
->i_inline
|= F2FS_INLINE_DOTS
;
1382 static inline int f2fs_has_inline_xattr(struct inode
*inode
)
1384 return is_inode_flag_set(F2FS_I(inode
), FI_INLINE_XATTR
);
1387 static inline unsigned int addrs_per_inode(struct f2fs_inode_info
*fi
)
1389 if (f2fs_has_inline_xattr(&fi
->vfs_inode
))
1390 return DEF_ADDRS_PER_INODE
- F2FS_INLINE_XATTR_ADDRS
;
1391 return DEF_ADDRS_PER_INODE
;
1394 static inline void *inline_xattr_addr(struct page
*page
)
1396 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1397 return (void *)&(ri
->i_addr
[DEF_ADDRS_PER_INODE
-
1398 F2FS_INLINE_XATTR_ADDRS
]);
1401 static inline int inline_xattr_size(struct inode
*inode
)
1403 if (f2fs_has_inline_xattr(inode
))
1404 return F2FS_INLINE_XATTR_ADDRS
<< 2;
1409 static inline int f2fs_has_inline_data(struct inode
*inode
)
1411 return is_inode_flag_set(F2FS_I(inode
), FI_INLINE_DATA
);
1414 static inline void f2fs_clear_inline_inode(struct inode
*inode
)
1416 clear_inode_flag(F2FS_I(inode
), FI_INLINE_DATA
);
1417 clear_inode_flag(F2FS_I(inode
), FI_DATA_EXIST
);
1420 static inline int f2fs_exist_data(struct inode
*inode
)
1422 return is_inode_flag_set(F2FS_I(inode
), FI_DATA_EXIST
);
1425 static inline int f2fs_has_inline_dots(struct inode
*inode
)
1427 return is_inode_flag_set(F2FS_I(inode
), FI_INLINE_DOTS
);
1430 static inline bool f2fs_is_atomic_file(struct inode
*inode
)
1432 return is_inode_flag_set(F2FS_I(inode
), FI_ATOMIC_FILE
);
1435 static inline bool f2fs_is_volatile_file(struct inode
*inode
)
1437 return is_inode_flag_set(F2FS_I(inode
), FI_VOLATILE_FILE
);
1440 static inline bool f2fs_is_first_block_written(struct inode
*inode
)
1442 return is_inode_flag_set(F2FS_I(inode
), FI_FIRST_BLOCK_WRITTEN
);
1445 static inline bool f2fs_is_drop_cache(struct inode
*inode
)
1447 return is_inode_flag_set(F2FS_I(inode
), FI_DROP_CACHE
);
1450 static inline void *inline_data_addr(struct page
*page
)
1452 struct f2fs_inode
*ri
= F2FS_INODE(page
);
1453 return (void *)&(ri
->i_addr
[1]);
1456 static inline int f2fs_has_inline_dentry(struct inode
*inode
)
1458 return is_inode_flag_set(F2FS_I(inode
), FI_INLINE_DENTRY
);
1461 static inline void f2fs_dentry_kunmap(struct inode
*dir
, struct page
*page
)
1463 if (!f2fs_has_inline_dentry(dir
))
1467 static inline int is_file(struct inode
*inode
, int type
)
1469 return F2FS_I(inode
)->i_advise
& type
;
1472 static inline void set_file(struct inode
*inode
, int type
)
1474 F2FS_I(inode
)->i_advise
|= type
;
1477 static inline void clear_file(struct inode
*inode
, int type
)
1479 F2FS_I(inode
)->i_advise
&= ~type
;
1482 static inline int f2fs_readonly(struct super_block
*sb
)
1484 return sb
->s_flags
& MS_RDONLY
;
1487 static inline bool f2fs_cp_error(struct f2fs_sb_info
*sbi
)
1489 return is_set_ckpt_flags(sbi
->ckpt
, CP_ERROR_FLAG
);
1492 static inline void f2fs_stop_checkpoint(struct f2fs_sb_info
*sbi
)
1494 set_ckpt_flags(sbi
->ckpt
, CP_ERROR_FLAG
);
1495 sbi
->sb
->s_flags
|= MS_RDONLY
;
1498 static inline bool is_dot_dotdot(const struct qstr
*str
)
1500 if (str
->len
== 1 && str
->name
[0] == '.')
1503 if (str
->len
== 2 && str
->name
[0] == '.' && str
->name
[1] == '.')
1509 #define get_inode_mode(i) \
1510 ((is_inode_flag_set(F2FS_I(i), FI_ACL_MODE)) ? \
1511 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
1513 /* get offset of first page in next direct node */
1514 #define PGOFS_OF_NEXT_DNODE(pgofs, fi) \
1515 ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) : \
1516 (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) / \
1517 ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi))
1522 int f2fs_sync_file(struct file
*, loff_t
, loff_t
, int);
1523 void truncate_data_blocks(struct dnode_of_data
*);
1524 int truncate_blocks(struct inode
*, u64
, bool);
1525 void f2fs_truncate(struct inode
*);
1526 int f2fs_getattr(struct vfsmount
*, struct dentry
*, struct kstat
*);
1527 int f2fs_setattr(struct dentry
*, struct iattr
*);
1528 int truncate_hole(struct inode
*, pgoff_t
, pgoff_t
);
1529 int truncate_data_blocks_range(struct dnode_of_data
*, int);
1530 long f2fs_ioctl(struct file
*, unsigned int, unsigned long);
1531 long f2fs_compat_ioctl(struct file
*, unsigned int, unsigned long);
1536 void f2fs_set_inode_flags(struct inode
*);
1537 struct inode
*f2fs_iget(struct super_block
*, unsigned long);
1538 int try_to_free_nats(struct f2fs_sb_info
*, int);
1539 void update_inode(struct inode
*, struct page
*);
1540 void update_inode_page(struct inode
*);
1541 int f2fs_write_inode(struct inode
*, struct writeback_control
*);
1542 void f2fs_evict_inode(struct inode
*);
1543 void handle_failed_inode(struct inode
*);
1548 struct dentry
*f2fs_get_parent(struct dentry
*child
);
1553 extern unsigned char f2fs_filetype_table
[F2FS_FT_MAX
];
1554 void set_de_type(struct f2fs_dir_entry
*, umode_t
);
1555 struct f2fs_dir_entry
*find_target_dentry(struct qstr
*, int *,
1556 struct f2fs_dentry_ptr
*);
1557 bool f2fs_fill_dentries(struct dir_context
*, struct f2fs_dentry_ptr
*,
1559 void do_make_empty_dir(struct inode
*, struct inode
*,
1560 struct f2fs_dentry_ptr
*);
1561 struct page
*init_inode_metadata(struct inode
*, struct inode
*,
1562 const struct qstr
*, struct page
*);
1563 void update_parent_metadata(struct inode
*, struct inode
*, unsigned int);
1564 int room_for_filename(const void *, int, int);
1565 void f2fs_drop_nlink(struct inode
*, struct inode
*, struct page
*);
1566 struct f2fs_dir_entry
*f2fs_find_entry(struct inode
*, struct qstr
*,
1568 struct f2fs_dir_entry
*f2fs_parent_dir(struct inode
*, struct page
**);
1569 ino_t
f2fs_inode_by_name(struct inode
*, struct qstr
*);
1570 void f2fs_set_link(struct inode
*, struct f2fs_dir_entry
*,
1571 struct page
*, struct inode
*);
1572 int update_dent_inode(struct inode
*, const struct qstr
*);
1573 void f2fs_update_dentry(nid_t ino
, umode_t mode
, struct f2fs_dentry_ptr
*,
1574 const struct qstr
*, f2fs_hash_t
, unsigned int);
1575 int __f2fs_add_link(struct inode
*, const struct qstr
*, struct inode
*, nid_t
,
1577 void f2fs_delete_entry(struct f2fs_dir_entry
*, struct page
*, struct inode
*,
1579 int f2fs_do_tmpfile(struct inode
*, struct inode
*);
1580 bool f2fs_empty_dir(struct inode
*);
1582 static inline int f2fs_add_link(struct dentry
*dentry
, struct inode
*inode
)
1584 return __f2fs_add_link(d_inode(dentry
->d_parent
), &dentry
->d_name
,
1585 inode
, inode
->i_ino
, inode
->i_mode
);
1591 int f2fs_commit_super(struct f2fs_sb_info
*);
1592 int f2fs_sync_fs(struct super_block
*, int);
1593 extern __printf(3, 4)
1594 void f2fs_msg(struct super_block
*, const char *, const char *, ...);
1599 f2fs_hash_t
f2fs_dentry_hash(const struct qstr
*);
1604 struct dnode_of_data
;
1607 bool available_free_memory(struct f2fs_sb_info
*, int);
1608 int need_dentry_mark(struct f2fs_sb_info
*, nid_t
);
1609 bool is_checkpointed_node(struct f2fs_sb_info
*, nid_t
);
1610 bool need_inode_block_update(struct f2fs_sb_info
*, nid_t
);
1611 void get_node_info(struct f2fs_sb_info
*, nid_t
, struct node_info
*);
1612 int get_dnode_of_data(struct dnode_of_data
*, pgoff_t
, int);
1613 int truncate_inode_blocks(struct inode
*, pgoff_t
);
1614 int truncate_xattr_node(struct inode
*, struct page
*);
1615 int wait_on_node_pages_writeback(struct f2fs_sb_info
*, nid_t
);
1616 void remove_inode_page(struct inode
*);
1617 struct page
*new_inode_page(struct inode
*);
1618 struct page
*new_node_page(struct dnode_of_data
*, unsigned int, struct page
*);
1619 void ra_node_page(struct f2fs_sb_info
*, nid_t
);
1620 struct page
*get_node_page(struct f2fs_sb_info
*, pgoff_t
);
1621 struct page
*get_node_page_ra(struct page
*, int);
1622 void sync_inode_page(struct dnode_of_data
*);
1623 int sync_node_pages(struct f2fs_sb_info
*, nid_t
, struct writeback_control
*);
1624 bool alloc_nid(struct f2fs_sb_info
*, nid_t
*);
1625 void alloc_nid_done(struct f2fs_sb_info
*, nid_t
);
1626 void alloc_nid_failed(struct f2fs_sb_info
*, nid_t
);
1627 void recover_inline_xattr(struct inode
*, struct page
*);
1628 void recover_xattr_data(struct inode
*, struct page
*, block_t
);
1629 int recover_inode_page(struct f2fs_sb_info
*, struct page
*);
1630 int restore_node_summary(struct f2fs_sb_info
*, unsigned int,
1631 struct f2fs_summary_block
*);
1632 void flush_nat_entries(struct f2fs_sb_info
*);
1633 int build_node_manager(struct f2fs_sb_info
*);
1634 void destroy_node_manager(struct f2fs_sb_info
*);
1635 int __init
create_node_manager_caches(void);
1636 void destroy_node_manager_caches(void);
1641 void register_inmem_page(struct inode
*, struct page
*);
1642 void commit_inmem_pages(struct inode
*, bool);
1643 void f2fs_balance_fs(struct f2fs_sb_info
*);
1644 void f2fs_balance_fs_bg(struct f2fs_sb_info
*);
1645 int f2fs_issue_flush(struct f2fs_sb_info
*);
1646 int create_flush_cmd_control(struct f2fs_sb_info
*);
1647 void destroy_flush_cmd_control(struct f2fs_sb_info
*);
1648 void invalidate_blocks(struct f2fs_sb_info
*, block_t
);
1649 void refresh_sit_entry(struct f2fs_sb_info
*, block_t
, block_t
);
1650 void clear_prefree_segments(struct f2fs_sb_info
*, struct cp_control
*);
1651 void release_discard_addrs(struct f2fs_sb_info
*);
1652 void discard_next_dnode(struct f2fs_sb_info
*, block_t
);
1653 int npages_for_summary_flush(struct f2fs_sb_info
*, bool);
1654 void allocate_new_segments(struct f2fs_sb_info
*);
1655 int f2fs_trim_fs(struct f2fs_sb_info
*, struct fstrim_range
*);
1656 struct page
*get_sum_page(struct f2fs_sb_info
*, unsigned int);
1657 void write_meta_page(struct f2fs_sb_info
*, struct page
*);
1658 void write_node_page(unsigned int, struct f2fs_io_info
*);
1659 void write_data_page(struct dnode_of_data
*, struct f2fs_io_info
*);
1660 void rewrite_data_page(struct f2fs_io_info
*);
1661 void f2fs_replace_block(struct f2fs_sb_info
*, struct f2fs_summary
*,
1662 block_t
, block_t
, bool);
1663 void allocate_data_block(struct f2fs_sb_info
*, struct page
*,
1664 block_t
, block_t
*, struct f2fs_summary
*, int);
1665 void f2fs_wait_on_page_writeback(struct page
*, enum page_type
);
1666 void write_data_summaries(struct f2fs_sb_info
*, block_t
);
1667 void write_node_summaries(struct f2fs_sb_info
*, block_t
);
1668 int lookup_journal_in_cursum(struct f2fs_summary_block
*,
1669 int, unsigned int, int);
1670 void flush_sit_entries(struct f2fs_sb_info
*, struct cp_control
*);
1671 int build_segment_manager(struct f2fs_sb_info
*);
1672 void destroy_segment_manager(struct f2fs_sb_info
*);
1673 int __init
create_segment_manager_caches(void);
1674 void destroy_segment_manager_caches(void);
1679 struct page
*grab_meta_page(struct f2fs_sb_info
*, pgoff_t
);
1680 struct page
*get_meta_page(struct f2fs_sb_info
*, pgoff_t
);
1681 bool is_valid_blkaddr(struct f2fs_sb_info
*, block_t
, int);
1682 int ra_meta_pages(struct f2fs_sb_info
*, block_t
, int, int);
1683 void ra_meta_pages_cond(struct f2fs_sb_info
*, pgoff_t
);
1684 long sync_meta_pages(struct f2fs_sb_info
*, enum page_type
, long);
1685 void add_dirty_inode(struct f2fs_sb_info
*, nid_t
, int type
);
1686 void remove_dirty_inode(struct f2fs_sb_info
*, nid_t
, int type
);
1687 void release_dirty_inode(struct f2fs_sb_info
*);
1688 bool exist_written_data(struct f2fs_sb_info
*, nid_t
, int);
1689 int acquire_orphan_inode(struct f2fs_sb_info
*);
1690 void release_orphan_inode(struct f2fs_sb_info
*);
1691 void add_orphan_inode(struct f2fs_sb_info
*, nid_t
);
1692 void remove_orphan_inode(struct f2fs_sb_info
*, nid_t
);
1693 void recover_orphan_inodes(struct f2fs_sb_info
*);
1694 int get_valid_checkpoint(struct f2fs_sb_info
*);
1695 void update_dirty_page(struct inode
*, struct page
*);
1696 void add_dirty_dir_inode(struct inode
*);
1697 void remove_dirty_dir_inode(struct inode
*);
1698 void sync_dirty_dir_inodes(struct f2fs_sb_info
*);
1699 void write_checkpoint(struct f2fs_sb_info
*, struct cp_control
*);
1700 void init_ino_entry_info(struct f2fs_sb_info
*);
1701 int __init
create_checkpoint_caches(void);
1702 void destroy_checkpoint_caches(void);
1707 void f2fs_submit_merged_bio(struct f2fs_sb_info
*, enum page_type
, int);
1708 int f2fs_submit_page_bio(struct f2fs_io_info
*);
1709 void f2fs_submit_page_mbio(struct f2fs_io_info
*);
1710 void set_data_blkaddr(struct dnode_of_data
*);
1711 int reserve_new_block(struct dnode_of_data
*);
1712 int f2fs_reserve_block(struct dnode_of_data
*, pgoff_t
);
1713 void f2fs_shrink_extent_tree(struct f2fs_sb_info
*, int);
1714 void f2fs_destroy_extent_tree(struct inode
*);
1715 void f2fs_init_extent_cache(struct inode
*, struct f2fs_extent
*);
1716 void f2fs_update_extent_cache(struct dnode_of_data
*);
1717 void f2fs_preserve_extent_tree(struct inode
*);
1718 struct page
*get_read_data_page(struct inode
*, pgoff_t
, int);
1719 struct page
*find_data_page(struct inode
*, pgoff_t
);
1720 struct page
*get_lock_data_page(struct inode
*, pgoff_t
);
1721 struct page
*get_new_data_page(struct inode
*, struct page
*, pgoff_t
, bool);
1722 int do_write_data_page(struct f2fs_io_info
*);
1723 int f2fs_fiemap(struct inode
*inode
, struct fiemap_extent_info
*, u64
, u64
);
1724 void init_extent_cache_info(struct f2fs_sb_info
*);
1725 int __init
create_extent_cache(void);
1726 void destroy_extent_cache(void);
1727 void f2fs_invalidate_page(struct page
*, unsigned int, unsigned int);
1728 int f2fs_release_page(struct page
*, gfp_t
);
1733 int start_gc_thread(struct f2fs_sb_info
*);
1734 void stop_gc_thread(struct f2fs_sb_info
*);
1735 block_t
start_bidx_of_node(unsigned int, struct f2fs_inode_info
*);
1736 int f2fs_gc(struct f2fs_sb_info
*);
1737 void build_gc_manager(struct f2fs_sb_info
*);
1742 int recover_fsync_data(struct f2fs_sb_info
*);
1743 bool space_for_roll_forward(struct f2fs_sb_info
*);
1748 #ifdef CONFIG_F2FS_STAT_FS
1749 struct f2fs_stat_info
{
1750 struct list_head stat_list
;
1751 struct f2fs_sb_info
*sbi
;
1752 int all_area_segs
, sit_area_segs
, nat_area_segs
, ssa_area_segs
;
1753 int main_area_segs
, main_area_sections
, main_area_zones
;
1754 int hit_ext
, total_ext
, ext_tree
, ext_node
;
1755 int ndirty_node
, ndirty_dent
, ndirty_dirs
, ndirty_meta
;
1756 int nats
, dirty_nats
, sits
, dirty_sits
, fnids
;
1757 int total_count
, utilization
;
1758 int bg_gc
, inline_inode
, inline_dir
, inmem_pages
, wb_pages
;
1759 unsigned int valid_count
, valid_node_count
, valid_inode_count
;
1760 unsigned int bimodal
, avg_vblocks
;
1761 int util_free
, util_valid
, util_invalid
;
1762 int rsvd_segs
, overp_segs
;
1763 int dirty_count
, node_pages
, meta_pages
;
1764 int prefree_count
, call_count
, cp_count
;
1765 int tot_segs
, node_segs
, data_segs
, free_segs
, free_secs
;
1766 int bg_node_segs
, bg_data_segs
;
1767 int tot_blks
, data_blks
, node_blks
;
1768 int bg_data_blks
, bg_node_blks
;
1769 int curseg
[NR_CURSEG_TYPE
];
1770 int cursec
[NR_CURSEG_TYPE
];
1771 int curzone
[NR_CURSEG_TYPE
];
1773 unsigned int segment_count
[2];
1774 unsigned int block_count
[2];
1775 unsigned int inplace_count
;
1776 unsigned base_mem
, cache_mem
, page_mem
;
1779 static inline struct f2fs_stat_info
*F2FS_STAT(struct f2fs_sb_info
*sbi
)
1781 return (struct f2fs_stat_info
*)sbi
->stat_info
;
1784 #define stat_inc_cp_count(si) ((si)->cp_count++)
1785 #define stat_inc_call_count(si) ((si)->call_count++)
1786 #define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
1787 #define stat_inc_dirty_dir(sbi) ((sbi)->n_dirty_dirs++)
1788 #define stat_dec_dirty_dir(sbi) ((sbi)->n_dirty_dirs--)
1789 #define stat_inc_total_hit(sb) ((F2FS_SB(sb))->total_hit_ext++)
1790 #define stat_inc_read_hit(sb) ((F2FS_SB(sb))->read_hit_ext++)
1791 #define stat_inc_inline_inode(inode) \
1793 if (f2fs_has_inline_data(inode)) \
1794 (atomic_inc(&F2FS_I_SB(inode)->inline_inode)); \
1796 #define stat_dec_inline_inode(inode) \
1798 if (f2fs_has_inline_data(inode)) \
1799 (atomic_dec(&F2FS_I_SB(inode)->inline_inode)); \
1801 #define stat_inc_inline_dir(inode) \
1803 if (f2fs_has_inline_dentry(inode)) \
1804 (atomic_inc(&F2FS_I_SB(inode)->inline_dir)); \
1806 #define stat_dec_inline_dir(inode) \
1808 if (f2fs_has_inline_dentry(inode)) \
1809 (atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
1811 #define stat_inc_seg_type(sbi, curseg) \
1812 ((sbi)->segment_count[(curseg)->alloc_type]++)
1813 #define stat_inc_block_count(sbi, curseg) \
1814 ((sbi)->block_count[(curseg)->alloc_type]++)
1815 #define stat_inc_inplace_blocks(sbi) \
1816 (atomic_inc(&(sbi)->inplace_count))
1817 #define stat_inc_seg_count(sbi, type, gc_type) \
1819 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
1821 if (type == SUM_TYPE_DATA) { \
1823 si->bg_data_segs += (gc_type == BG_GC) ? 1 : 0; \
1826 si->bg_node_segs += (gc_type == BG_GC) ? 1 : 0; \
1830 #define stat_inc_tot_blk_count(si, blks) \
1831 (si->tot_blks += (blks))
1833 #define stat_inc_data_blk_count(sbi, blks, gc_type) \
1835 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
1836 stat_inc_tot_blk_count(si, blks); \
1837 si->data_blks += (blks); \
1838 si->bg_data_blks += (gc_type == BG_GC) ? (blks) : 0; \
1841 #define stat_inc_node_blk_count(sbi, blks, gc_type) \
1843 struct f2fs_stat_info *si = F2FS_STAT(sbi); \
1844 stat_inc_tot_blk_count(si, blks); \
1845 si->node_blks += (blks); \
1846 si->bg_node_blks += (gc_type == BG_GC) ? (blks) : 0; \
1849 int f2fs_build_stats(struct f2fs_sb_info
*);
1850 void f2fs_destroy_stats(struct f2fs_sb_info
*);
1851 void __init
f2fs_create_root_stats(void);
1852 void f2fs_destroy_root_stats(void);
1854 #define stat_inc_cp_count(si)
1855 #define stat_inc_call_count(si)
1856 #define stat_inc_bggc_count(si)
1857 #define stat_inc_dirty_dir(sbi)
1858 #define stat_dec_dirty_dir(sbi)
1859 #define stat_inc_total_hit(sb)
1860 #define stat_inc_read_hit(sb)
1861 #define stat_inc_inline_inode(inode)
1862 #define stat_dec_inline_inode(inode)
1863 #define stat_inc_inline_dir(inode)
1864 #define stat_dec_inline_dir(inode)
1865 #define stat_inc_seg_type(sbi, curseg)
1866 #define stat_inc_block_count(sbi, curseg)
1867 #define stat_inc_inplace_blocks(sbi)
1868 #define stat_inc_seg_count(sbi, type, gc_type)
1869 #define stat_inc_tot_blk_count(si, blks)
1870 #define stat_inc_data_blk_count(sbi, blks, gc_type)
1871 #define stat_inc_node_blk_count(sbi, blks, gc_type)
1873 static inline int f2fs_build_stats(struct f2fs_sb_info
*sbi
) { return 0; }
1874 static inline void f2fs_destroy_stats(struct f2fs_sb_info
*sbi
) { }
1875 static inline void __init
f2fs_create_root_stats(void) { }
1876 static inline void f2fs_destroy_root_stats(void) { }
1879 extern const struct file_operations f2fs_dir_operations
;
1880 extern const struct file_operations f2fs_file_operations
;
1881 extern const struct inode_operations f2fs_file_inode_operations
;
1882 extern const struct address_space_operations f2fs_dblock_aops
;
1883 extern const struct address_space_operations f2fs_node_aops
;
1884 extern const struct address_space_operations f2fs_meta_aops
;
1885 extern const struct inode_operations f2fs_dir_inode_operations
;
1886 extern const struct inode_operations f2fs_symlink_inode_operations
;
1887 extern const struct inode_operations f2fs_special_inode_operations
;
1888 extern struct kmem_cache
*inode_entry_slab
;
1893 bool f2fs_may_inline_data(struct inode
*);
1894 bool f2fs_may_inline_dentry(struct inode
*);
1895 void read_inline_data(struct page
*, struct page
*);
1896 bool truncate_inline_inode(struct page
*, u64
);
1897 int f2fs_read_inline_data(struct inode
*, struct page
*);
1898 int f2fs_convert_inline_page(struct dnode_of_data
*, struct page
*);
1899 int f2fs_convert_inline_inode(struct inode
*);
1900 int f2fs_write_inline_data(struct inode
*, struct page
*);
1901 bool recover_inline_data(struct inode
*, struct page
*);
1902 struct f2fs_dir_entry
*find_in_inline_dir(struct inode
*, struct qstr
*,
1904 struct f2fs_dir_entry
*f2fs_parent_inline_dir(struct inode
*, struct page
**);
1905 int make_empty_inline_dir(struct inode
*inode
, struct inode
*, struct page
*);
1906 int f2fs_add_inline_entry(struct inode
*, const struct qstr
*, struct inode
*,
1908 void f2fs_delete_inline_entry(struct f2fs_dir_entry
*, struct page
*,
1909 struct inode
*, struct inode
*);
1910 bool f2fs_empty_inline_dir(struct inode
*);
1911 int f2fs_read_inline_dir(struct file
*, struct dir_context
*);
1916 static inline int f2fs_encrypted_inode(struct inode
*inode
)
1918 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1919 return file_is_encrypt(inode
);
1925 static inline void f2fs_set_encrypted_inode(struct inode
*inode
)
1927 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1928 file_set_encrypt(inode
);
1932 static inline bool f2fs_bio_encrypted(struct bio
*bio
)
1934 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1935 return unlikely(bio
->bi_private
!= NULL
);
1941 static inline int f2fs_sb_has_crypto(struct super_block
*sb
)
1943 #ifdef CONFIG_F2FS_FS_ENCRYPTION
1944 return F2FS_HAS_FEATURE(sb
, F2FS_FEATURE_ENCRYPT
);